Mercurial > yaffs-ecoscentric
changeset 358:3de713ddbde9
This repository is deprecated in favour of http://hg-pub.ecoscentric.com/yaffs-ecoscentric-gpl/
| author | Ross Younger <wry@ecoscentric.com> |
|---|---|
| date | Fri, 31 Dec 2010 00:00:00 +1300 |
| parents | 9f250509e64c |
| children | 8d2a6b62b66d |
| files | REPOSITORY-DEPRECATED.txt packages/ecos.db packages/fs/yaffs/current/ChangeLog packages/fs/yaffs/current/GPL-2 packages/fs/yaffs/current/cdl/yaffs.cdl packages/fs/yaffs/current/doc/.gitignore packages/fs/yaffs/current/doc/makefile packages/fs/yaffs/current/doc/yaffs.sgml packages/fs/yaffs/current/src/devextras.h packages/fs/yaffs/current/src/ecos-yaffs-diriter.c packages/fs/yaffs/current/src/ecos-yaffs-diriter.h packages/fs/yaffs/current/src/ecos-yaffs-nand.c packages/fs/yaffs/current/src/ecos-yaffs-nand.h packages/fs/yaffs/current/src/ecos-yaffs.c packages/fs/yaffs/current/src/ecos-yaffs.h packages/fs/yaffs/current/src/ecos-yport.h packages/fs/yaffs/current/src/yaffs_checkptrw.c packages/fs/yaffs/current/src/yaffs_checkptrw.h packages/fs/yaffs/current/src/yaffs_ecc.c packages/fs/yaffs/current/src/yaffs_ecc.h packages/fs/yaffs/current/src/yaffs_getblockinfo.h packages/fs/yaffs/current/src/yaffs_guts.c packages/fs/yaffs/current/src/yaffs_guts.h packages/fs/yaffs/current/src/yaffs_nand.c packages/fs/yaffs/current/src/yaffs_nand.h packages/fs/yaffs/current/src/yaffs_packedtags1.c packages/fs/yaffs/current/src/yaffs_packedtags1.h packages/fs/yaffs/current/src/yaffs_packedtags2.c packages/fs/yaffs/current/src/yaffs_packedtags2.h packages/fs/yaffs/current/src/yaffs_qsort.h packages/fs/yaffs/current/src/yaffs_tagscompat.c packages/fs/yaffs/current/src/yaffs_tagscompat.h packages/fs/yaffs/current/src/yaffs_tagsvalidity.c packages/fs/yaffs/current/src/yaffs_tagsvalidity.h packages/fs/yaffs/current/src/yaffsinterface.h packages/fs/yaffs/current/src/yportenv.h packages/fs/yaffs/current/tests/ar4prng.inl packages/fs/yaffs/current/tests/fops.c packages/fs/yaffs/current/tests/mounttime.c packages/fs/yaffs/current/tests/yaffs1.c packages/fs/yaffs/current/tests/yaffs2.c packages/fs/yaffs/current/tests/yaffs4.c packages/fs/yaffs/current/tests/yaffs5.c packages/fs/yaffs/current/tests/yaffs6.c |
| diffstat | 44 files changed, 1 insertions(+), 20238 deletions(-) [+] |
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new file mode 100644 --- /dev/null +++ b/REPOSITORY-DEPRECATED.txt @@ -0,0 +1,1 @@ +This repository is deprecated in favour of http://hg-pub.ecoscentric.com/yaffs-ecoscentric-gpl/
deleted file mode 100644 --- a/packages/ecos.db +++ /dev/null @@ -1,16 +0,0 @@ -# ecos.db for ecos-anon-yaffs -# -# NB. This repo isn't expected to form part of the ordinary eCos -# repository, because of the special licensing of its contents. -# Nevertheless an ecos.db is useful so we can test-build against it easily. - -package CYGPKG_FS_YAFFS { - alias { "YAFFS filesystem" fs_yaffs yaffs } - directory fs/yaffs - script yaffs.cdl - description " - This package provides the YAFFS filesystem. - This software is covered by the full GNU GPL; see - the file GPL-2 for details." -} -
deleted file mode 100644 --- a/packages/fs/yaffs/current/ChangeLog +++ /dev/null @@ -1,106 +0,0 @@ -2009-12-01 Ross Younger <wry@ecoscentric.com> - - * ecos-yaffs.c: Interface tweaks to allow this this package - to be easily used with eCosPro. - * yaffs.cdl: Create CYGSEM_FS_YAFFS_COMPATIBILITY_ECOSPRO switch - for the above, default off (i.e. for anoncvs). - -2009-11-19 Ross Younger <wry@ecoscentric.com> - - * ecos-yaffs.c, ecos-yaffs-nand.c: Update to NAND interface v2. - * yaffs.cdl: Require CYGSEM_IO_NAND_APPINTERFACE_VERSION > 1. - Declare CYGSEM_FS_YAFFS_NAND_APPINTERFACE to satisfy the two-way check. - -2009-11-17 Ross Younger <wry@ecoscentric.com> - - * yaffs_guts.c: Tweak last upstream merge. Be noisy if - we ran out of memory during mount. - -2009-11-13 Ross Younger <wry@ecoscentric.com> - - * tests: yaffs1-6 NA unless CYGPKG_KERNEL is present. - * Update upstream: (pulled up to 2009-11-11 02:11:13 +0000) - - mostly bugfixes - -2009-11-09 Ross Younger <wry@ecoscentric.com> - - * ecos-yaffs-nand.c: Update for changes to NAND interface. - -2009-11-03 Ross Younger <wry@ecoscentric.com> - - * tests: Import from eCosPro: mounttime, yaffs1, yaffs2, - yaffs4, yaffs5, yaffs6. Patch for codebase differences. - -2009-11-02 Ross Younger <wry@ecoscentric.com> - - * Update to latest snapshot from Aleph One CVS (mostly - tidyups): last upstream change is dated "2009-10-30 02:32:32 +0000" - -2009-10-29 Ross Younger <wry@ecoscentric.com> - - * yaffs_guts.c: Fix low-memory assert bug. - -2009-10-09 Ross Younger <wry@ecoscentric.com> - - * tests/fops.c: Don't make unreasonable use of stack. - * Update for latest upstream snapshot (yaffs_FlushFile) - -2009-09-24 Ross Younger <wry@ecoscentric.com> - - * doc/yaffs.sgml: Various fixups. - * ecos-yaffs-nand.h, ecos-yaffs.c, yaffs_guts.c: Build fixes for - older gcc - -2009-09-16 Ross Younger <wry@ecoscentric.com> - - * ecos-yaffs-nand.c: Correctly use ECC on YAFFS tags in yaffs2 - filesystems when not in inbandTags mode (ref: 1000821) - * ecos-yaffs.c: Improve spare area size sanity checking on mount - * yaffs_packedtags2.c: Add framework (usually conditioned out) - to count ECC corrections within the spare area. - -2009-08-28 Ross Younger <wry@ecoscentric.com> - - * doc/yaffs.sgml: Bring explanations of CDL options up-to-date. - * yaffs.cdl: Add CYGNUM_FS_YAFFS_TEMP_BUFFERS tuning parameter. - -2009-08-26 Ross Younger <wry@ecoscentric.com> - - * Added support for small-page chips: incorporates and builds on work - by Simon Kallweit. Small page devices can operate either in YAFFS1 - mode, or YAFFS2 mode with inbandTags. - * Updated #defines to omit unneeded YAFFS code. - -2009-08-18 Ross Younger <wry@ecoscentric.com> - - * yaffs-guts.c: Update from Aleph One CVS (1.85 -> 1.88) - -2009-07-20 Ross Younger <wry@ecoscentric.com> - - * ecos-yaffs.c: Compute free-space from nErasedBlocks (recommended by - Charles Manning) - not yaffs_GetNumberOfFreeChunks. - -2009-07-03 Ross Younger <wry@eCosCentric.com> - - * Add detailed RAM use estimate and worked example. - -2009-06-18 Ross Younger <wry@eCosCentric.com> - - * General enhancements and bugfixes. - * Add mount-time mallinfo check/warning in debug builds. - * Replace unconditional diag_printfs with calls to TOUT macro. - * TOUT (trace output) macro now uses configable cdl function, - may be disabled. - * Improve our definition of YBUG. - * Upstream: Merge from cvs datestamp "2009-05-16 00:00" - * Retab eCos-specific files, for consistency. - * Pare down use of libextras. - * doc: linewrap for consistency. - * Elide unneeded YAFFS1 code. - * Use eCos qsort, not yaffs's own. - -2009-05-01 Ross Younger <wry@eCosCentric.com> - - * New package. YAFFS filesystem. Beware license terms; this - package is not covered by the standard eCos license! -
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deleted file mode 100644 --- a/packages/fs/yaffs/current/cdl/yaffs.cdl +++ /dev/null @@ -1,308 +0,0 @@ -# ==================================================================== -# -# yaffs.cdl -# -# YAFFS (Yet Another Flash File System) port to eCos -# -# ==================================================================== -# ####ECOSGPLCOPYRIGHTBEGIN#### -# ------------------------------------------- -# This file is part of eCos, the Embedded Configurable Operating System. -# Copyright (C) 2009 eCosCentric Limited. -# -# eCos is free software; you can redistribute it and/or modify it under -# the terms of the GNU General Public License as published by the Free -# Software Foundation; either version 2 or (at your option) any later -# version. -# -# eCos is distributed in the hope that it will be useful, but WITHOUT -# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -# for more details. -# -# You should have received a copy of the GNU General Public License -# along with eCos; if not, write to the Free Software Foundation, Inc., -# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -# -# As a special exception, if other files instantiate templates or use -# macros or inline functions from this file, or you compile this file -# and link it with other works to produce a work based on this file, -# this file does not by itself cause the resulting work to be covered by -# the GNU General Public License. However the source code for this file -# must still be made available in accordance with section (3) of the GNU -# General Public License v2. -# -# This exception does not invalidate any other reasons why a work based -# on this file might be covered by the GNU General Public License. -# ------------------------------------------- -# ####ECOSGPLCOPYRIGHTEND#### -# ==================================================================== -######DESCRIPTIONBEGIN#### -# -# Author(s): wry -# Date: 2009-05-01 -# -#####DESCRIPTIONEND#### -# -# ==================================================================== - -cdl_package CYGPKG_FS_YAFFS { - display "YAFFS flash filesystem" - parent CYGPKG_FS - include_files - # there's nothing to include as we patch in to the fstab. - - requires CYGPKG_IO_FILEIO - requires CYGPKG_IO_NAND - requires ( CYGSEM_IO_NAND_APPINTERFACE_VERSION > 1 ) - requires CYGPKG_ISOINFRA - requires CYGINT_ISO_ERRNO - requires CYGINT_ISO_ERRNO_CODES - requires CYGINT_ISO_MALLOC - requires CYGPKG_LIBC_STDLIB - # STDLIB requires CYGINT_ISO_CTYPE, which is provided by CYGPKG_LIBC_I18N - requires CYGPKG_LIBC_STRING - - requires { CYGPKG_REDBOOT implies (CYGMEM_REDBOOT_WORKSPACE_HEAP_SIZE >= 0x00014000) } - - implements CYGINT_IO_FILEIO_FS - - compile -library=libextras.a ecos-yaffs.c - compile yaffs_checkptrw.c \ - yaffs_guts.c \ - yaffs_nand.c \ - yaffs_ecc.c \ - yaffs_packedtags1.c \ - yaffs_packedtags2.c \ - yaffs_tagscompat.c \ - yaffs_tagsvalidity.c \ - ecos-yaffs-nand.c \ - ecos-yaffs-diriter.c - - #doc ref/yaffs.html - description " - This package provides the YAFFS filesystem which is intended for - NAND flash devices." - - cdl_component CYGPKG_FS_YAFFS_OPTIONS { - display "YAFFS build options" - flavor none - description " - Package specific build options including control over - compiler flags used only in building the YAFFS code." - - cdl_option CYGPKG_FS_YAFFS_CFLAGS_ADD { - display "Additional compiler flags" - flavor data - no_define - default_value { "-Werror" } - description " - This option modifies the set of compiler flags for - building the YAFFS filesystem. These flags - are used in addition to the set of global flags." - } - cdl_option CYGPKG_FS_YAFFS_CFLAGS_REMOVE { - display "Suppressed compiler flags" - flavor data - no_define - default_value { "" } - description " - This option modifies the set of compiler flags for - building the YAFFS filesystem. These flags - are removed from the set of global flags if present." - } - } - - cdl_option CYGSEM_FS_YAFFS_SMALLPAGE_MODE { - display "YAFFS mode for small page devices" - flavor data - default_value { "YAFFS2" } - legal_values { "YAFFS1" "YAFFS2" } - description " - Small page devices - those with 512 bytes/page - may operate - in either YAFFS1 mode, or YAFFS2 with the inband tags option. - This option selects the mode to use. Note that some chips - cannot support YAFFS1 mode, so this option may not be - relevant to you." - } - - cdl_option CYGSEM_FS_YAFFS_CACHE_SHORT_NAMES { - display "Cache short filenames in RAM" - default_value 1 - description " - If set, short names are cached in memory. - This consumes more RAM, but allows faster file look-ups." - } - - cdl_option CYGSEM_FS_YAFFS_OMIT_YAFFS2_CODE { - display "Omit YAFFS2-specific code" - default_value 1 - active_if { CYGSEM_FS_YAFFS_SMALLPAGE_MODE == "YAFFS1" } - active_if CYGNUM_NAND_PAGEBUFFER <= 512 - description " - This option causes some of the YAFFS2-specific code - to be omitted from the build, in order to reduce code - size. Obviously, this can only ever work if all your devices - are small-page, and you have configured YAFFS to run them in - YAFFS1 mode." - } - - cdl_option CYGPKG_FS_YAFFS_RET_DIRENT_DTYPE { - display "Support for fileio's struct dirent d_type field" - flavor bool - default_value 0 - active_if CYGPKG_FILEIO_DIRENT_DTYPE - description "This option controls whether the YAFFS filesystem - supports setting fileio's struct dirent d_type field. - If this option is enabled, d_type will be set." - } - - cdl_option CYGNUM_FS_YAFFS_RESERVED_BLOCKS { - display "Number of reserved blocks" - flavor data - default_value 5 - legal_values 2 to 0x7fffffff - description " - The number of eraseblocks YAFFS should keep in reserve to allow - for garbage collection and for block failures. A - minimum value of 5 is recommended if you are using real - (non-synthetic) NAND devices; wizards may wish to tune it to - improve performance. Note that this setting is a global - default and may be tuned per-device by a mount-time option." - } - - cdl_option CYGNUM_FS_YAFFS_SHORTOP_CACHES { - display "Number of cache entries" - flavor data - default_value 10 - legal_values 0 to 0x7fffffff - description " - The number of page cache entries to use. Values from 10 to 20 - are recommended; set to 0 to disable cacheing. - Wizards may wish to tune this value to improve performance. - Note that this setting is a global default and may be - configured per-device by a mount-time option. There is also - an upper limit hard-wired into the code as - YAFFS_MAX_SHORT_OP_CACHES; numbers in excess of this ceiling - will be ignored." - } - - cdl_option CYGNUM_FS_YAFFS_TEMP_BUFFERS { - display "Number of preallocated temporary page buffers" - flavor data - default_value 6 - legal_values 0 to 0x7fffffff - description " - At mount time, YAFFS preallocates a number of temporary - buffers, which are used in many places throughout the code. - This setting controls how many. - If YAFFS ever runs out of temporary buffers, it calls malloc to - dynamically allocate further buffers as needed. - Most users will not need to change this setting, but it may - prove a useful tuning parameter." - } - - cdl_option CYGNUM_FS_YAFFS_TRACEMASK { - display "Output trace mask" - flavor data - default_value 0 - legal_values 0 to 0xffffffff - description " - The YAFFS filesystem has a number of categories in which it can - emit diagnostic output. They are controlled by this setting, - which is a bitfield; set bits enable various categories. - For the definition of the bits used, see yportenv.h - (\"Tracing flags\"). They tend only to be useful for debugging. - " - } - - cdl_option CYGSEM_FS_YAFFS_TRACEFN { - display "Enable debug tracing" - flavor booldata - default_value { "diag_printf" } - description " - If enabled, diagnostic output from YAFFS will be sent to - this function." - } - - cdl_option CYGSEM_FS_YAFFS_COMPATIBILITY_ECOSPRO { - display "eCosPro compatibility mode" - flavor bool - default_value 0 - description "This package is targetted at eCos but may be - built under eCosPro by setting this switch." - } - - cdl_option CYGPKG_FS_YAFFS_TESTS { - display "YAFFS filesystem tests" - flavor data - no_define - calculated { "tests/fops tests/mounttime" - . " tests/yaffs1 tests/yaffs2 tests/yaffs4" - . " tests/yaffs5 tests/yaffs6" - } - description " - This special option specifies the set of tests to build for YAFFS." - } - - cdl_component CYGPKG_FS_YAFFS_TESTING { - display "Testing configuration" - default_value 1 - - define_proc { - puts $::cdl_system_header "/***** Synthdisk driver proc output start *****/" - puts $::cdl_system_header "#define CYGDAT_DEVS_DISK_CFG <pkgconf/fs_yaffs.h>" - puts $::cdl_system_header "/***** Synthdisk driver proc output end *****/" - } - - - cdl_option CYGDAT_DEVS_DISK_TEST_DEVICE { - display "Test device driver" - flavor data - default_value { CYGPKG_DEVS_NAND_SYNTH?"\"synth/0\"":"\"onboard/0\"" } - } - - cdl_option CYGDAT_DEVS_DISK_TEST_MOUNTPOINT { - display "Test filesystem mountpoint" - flavor data - default_value {"\"/nand\"" } - } - - cdl_option CYGDAT_DEVS_DISK_TEST_DIRECTORY { - display "Test directory on test device" - flavor data - default_value {"\"/test\"" } - } - - - cdl_option CYGDAT_DEVS_DISK_TEST_DEVICE2 { - display "Second Test device driver" - flavor data - default_value { CYGPKG_DEVS_NAND_SYNTH?"\"synth/1\"":"\"onboard/1\"" } - } - - cdl_option CYGDAT_DEVS_DISK_TEST_MOUNTPOINT2 { - display "Second Test filesystem mountpoint" - flavor data - default_value {"\"/nand2\"" } - } - - cdl_option CYGDAT_DEVS_DISK_TEST_DIRECTORY2 { - display "Test directory on second test device" - flavor data - default_value {"\"/test\"" } - } - - } - - cdl_option CYGSEM_FS_YAFFS_NAND_APPINTERFACE { - display "NAND application interface version required" - flavor data - calculated 2 - no_define - description "This is the version of the NAND application - interface which this package requires. It exists to flag - up changes at the CDL level." - } - -}
deleted file mode 100644 --- a/packages/fs/yaffs/current/doc/.gitignore +++ /dev/null @@ -1,6 +0,0 @@ -*.html -*.aux -*.log -*.out -*.pdf -*.tex
deleted file mode 100644 --- a/packages/fs/yaffs/current/doc/makefile +++ /dev/null @@ -1,8 +0,0 @@ -TOPLEVEL := ../../../.. -MAIN_SGML := yaffs.sgml -MAIN_HTML := fs-yaffs.html -MAIN_PDF := fs-yaffs.pdf -OTHER_SGML := -PICTURES := - -include $(TOPLEVEL)/pkgconf/rules.doc
deleted file mode 100644 --- a/packages/fs/yaffs/current/doc/yaffs.sgml +++ /dev/null @@ -1,685 +0,0 @@ -<!-- {{{ Banner --> - -<!-- =============================================================== --> -<!-- --> -<!-- yaffs.sgml --> -<!-- --> -<!-- Documentation for the eCos port of the YAFFS filesystem. --> -<!-- --> -<!-- =============================================================== --> -<!-- ####ECOSDOCCOPYRIGHTBEGIN#### --> -<!-- =============================================================== --> -<!-- Copyright (C) 2009 eCosCentric Ltd. --> -<!-- This material may be distributed only subject to the terms --> -<!-- and conditions set forth in the Open Publication License, v1.0 --> -<!-- or later (the latest version is presently available at --> -<!-- http://www.opencontent.org/openpub/) --> -<!-- Distribution of the work or derivative of the work in any --> -<!-- standard (paper) book form is prohibited unless prior --> -<!-- permission obtained from the copyright holder --> -<!-- =============================================================== --> -<!-- ####ECOSDOCCOPYRIGHTEND#### --> -<!-- =============================================================== --> -<!-- #####DESCRIPTIONBEGIN#### --> -<!-- --> -<!-- Author(s): wry --> -<!-- Date: 2009-05-28 --> -<!-- --> -<!-- ####DESCRIPTIONEND#### --> -<!-- =============================================================== --> - -<!-- }}} --> - -<!-- ### Uncomment to make a standalone book: -<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook V3.1//EN"> -<book id="fs-yaffs-book"> - <bookinfo> - <title>The YAFFS filesystem for eCos</title> - <copyright><year>2009</year><holder>eCosCentric Limited</holder></copyright> - <legalnotice> - <title>Documentation licensing terms</title> - <para>This material may be distributed only subject to the terms - and conditions set forth in the Open Publication License, v1.0 - or later (the latest version is presently available at - <ulink url="http://www.opencontent.org/openpub/">http://www.opencontent.org/openpub/</ulink>). - </para> - <para> - Distribution of the work or derivative of the work in any - standard (paper) book form is prohibited unless prior - permission is obtained from the copyright holder. - </para> - </legalnotice> - </bookinfo> - ! /### --> - -<part id="fs-yaffs"> -<title>The YAFFS filesystem</title> - -<chapter id="yaffs-overview-c"> -<title>What is YAFFS?</title> - -<para> -YAFFS is a filesystem for NAND flash chips. -</para> - -<para> -YAFFS is accessed through the FILEIO package which presents a standard -POSIX compatible IO interface through which applications use standard -open(), read(), write() and close() calls. -</para> - -<para> -YAFFS is a <emphasis>journalling</emphasis> filesystem -with <emphasis>wear-levelling</emphasis>. It is -particularly suited to NAND flash parts, having been -designed with their unique properties in mind. -The use of traditional filesystems (FAT, ext2, etc) which do not have -these features is not recommended on such chips because their design -requires the use of fixed address on the underlying hardware. -Such behaviour causes flash sectors to wear out, the consequence of -which would typically be to cause the whole device to become unbootable. -</para> - -<para> -YAFFS also provides a high degree of robustness, which is usually -a requirement of embedded devices. -A power failure or other crash can leave a traditional filesystem -in an inconsistent state which is often difficult to repair, -especially in the field. -</para> - -<para> -YAFFS can also be built into RedBoot, which allows you to store -application images on NAND flash and boot them with -RedBoot's usual flexible scripting system. -</para> - -<para> -For more information about NAND flash chips, -how they differ from NOR flash parts -and other ways to access them, refer to the documentation for the -<xref linkend="io-nand-overview" endterm="io-nand-short">. -</para> - -<para> -For more information about YAFFS itself, refer to -<ulink url="http://www.yaffs.net/">yaffs.net</ulink>. -</para> -</chapter> - -<chapter id="yaffs-getstarted"><title>Getting started with YAFFS</title> - -<sect1 id="yaffs-licensing"><title>Licensing considerations</title> -<para> -Before you can use YAFFS, you must accept its license. -<emphasis>YAFFS is not covered by the standard eCos license.</emphasis> -You will be reminded of your license to use YAFFS when you install it. -</para> - -<para> -Most users will only have access to YAFFS under the GNU GPL. -This costs nothing to license. However this usually means that if you ever -distribute your application, -you must do so under the GPL. -This requires you to publish or otherwise make all of your application, -eCos and everything else you link with it available as source code. -For full details refer to the text of the -<ulink url="http://www.gnu.org/licenses/old-licenses/gpl-2.0.html">GPL -(v2)</ulink>. -</para> - -<para> -If you cannot accept the restrictions and obligations of the GPL, -YAFFS for eCos is available under a proprietary license, for a fee. -Details are available on request from -<ulink url="http://www.ecoscentric.com/">eCosCentric</ulink> or -<ulink url="http://www.yaffs.net/yaffs-licences">Aleph One</ulink>. -</para> -</sect1> - -<sect1 id="yaffs-install"><title>Installation</title> -<para> -YAFFS is supplied as an EPK (eCos Package) file. -</para> - -<sect2 id="yaffs-install-configtool"><title>Installation via the eCos -Configuration Tool</title> -<para> -<orderedlist> -<listitem><para>Open up the eCos Configuration Tool.</para></listitem> -<listitem><para>Open up the <emphasis>Administration</emphasis> dialog, -from the <emphasis>Tools</emphasis> menu.</para></listitem> -<listitem><para>Press the <emphasis>Add</emphasis> button.</para></listitem> -<listitem><para>A file browser windows opens. Navigate to the YAFFS EPK file.</para></listitem> -<listitem><para>The License screen shows. You must accept the license -in order to install the package. Press Yes if you do.</para></listitem> -</orderedlist> -</para> -</sect2> - -<sect2 id="yaffs-install-commandline"><title>Installing from the -command-line</title> -<para> Advanced users may alternatively use the -<filename>ecosadmin.tcl</filename> tool from the command line. You -will be prompted to accept the license at the appropriate time during -the procedure. -</para> - -<programlisting> -tclsh $ECOS_REPOSITORY/ecosadmin.tcl add yaffs-v1_2_3.epk -</programlisting> -</sect2> -</sect1> - -<sect1 id="yaffs-config-build"><title>Configuration and Building</title> -<para> -After installing the EPK, YAFFS is added to your eCos repository -and is configured and built in the normal way. -</para> - -<sect2 id="yaffs-pkg-deps"><title>Package dependencies</title> -<para> -To link YAFFS into your application, -add <filename>CYGPKG_FS_YAFFS</filename> to your eCos -configuration in the normal way, either using the eCos Configuration Tool -(<emphasis>Packages</emphasis> dialog on the <emphasis>Build</emphasis> -menu), or the <filename>ecosconfig</filename> command-line tool.</para> - -<para> -You will also need to add <filename>CYGPKG_IO_NAND</filename> and -<filename>CYGPKG_IO_FILEIO</filename> to your configuration if they -are not already present. -Your platform HAL should supply packages for all NAND device(s) present. -</para> - -<para> -If you started with a smaller template than <emphasis>default</emphasis>, -you may also need to add some of the following:</para> -<itemizedlist> -<listitem><para><filename>CYGPKG_LIBC_STDLIB</filename></para></listitem> -<listitem><para><filename>CYGPKG_LIBC_STRING</filename> </para></listitem> -<listitem><para><filename>CYGPKG_MEMALLOC</filename> or something else -which provides <filename>CYGINT_ISO_MALLOC</filename></para></listitem> -<listitem><para><filename>CYGPKG_LIBC_I18N</filename> or something else -which provides <filename>CYGINT_ISO_CTYPE</filename></para></listitem> -</itemizedlist> -</sect2> - -<sect2 id="yaffs-pkg-options"><title>Configuration options</title> -<para> -YAFFS provides a number of package options, including tuning parameters. -</para> - -<variablelist> -<varlistentry><term><constant>CYGSEM_FS_YAFFS_CACHE_SHORT_NAMES</constant></term><listitem><para>If -set, caches files' short names in RAM. This consumes more RAM but -improves performance.</para></listitem></varlistentry> -<varlistentry><term><constant>CYGPKG_FS_YAFFS_RET_DIRENT_DTYPE</constant></term><listitem><para>Controls -whether YAFFS supports setting the <structfield>d_type</structfield> -field in a <structname>struct dirent</structname>. If you don't need -this, leave it switched off to save a little code size.</para></listitem></varlistentry> -<varlistentry><term><constant>CYGNUM_FS_YAFFS_RESERVED_BLOCKS</constant></term><listitem><para> -The number of blocks to keep in reserve to allow for garbage collection -and block failures. The recommended value is 5, but it can be tuned to suit your application: -higher numbers can reduce the delay caused by garbage collection, at the cost of removing -available space for storing files. -<emphasis>This setting is a global default and may be -changed by a mount-time option.</emphasis></para></listitem></varlistentry> -<varlistentry><term><constant>CYGNUM_FS_YAFFS_SHORTOP_CACHES</constant></term><listitem><para> -The number of page cache entries to use. Values of 10 to 20 are -recommended as a good compromise; increasing the number consumes more RAM but may -improve performance. -Set to 0 to disable these caches altogether. -<emphasis>This setting is a global default and may be -changed by a mount-time option.</emphasis></para></listitem></varlistentry> -<varlistentry><term><constant>CYGNUM_FS_YAFFS_TEMP_BUFFERS</constant></term> -<listitem><para> -YAFFS requires temporary buffers in many places throughout the code. -To avoid the overhead of a dynamic malloc every time, a number of -buffers are preallocated at mount time. This setting controls how many; -should it not prove enough, YAFFS will call maloc on demand as required. -The default setting is 6; most users will not need to change it. -</para></listitem></varlistentry> -<varlistentry><term><constant>CYGNUM_FS_YAFFS_TRACEMASK</constant></term><listitem><para>This -is a 32-bit bitfield which controls diagnostic output. The bit definitions -are found in <filename>yportenv.h</filename>; changing this setting tends to only be useful -if you wish to debug YAFFS itself.</para></listitem></varlistentry> -<varlistentry><term><constant>CYGPKG_FS_YAFFS_CFLAGS_ADD</constant></term> -<term><constant>CYGPKG_FS_YAFFS_CFLAGS_REMOVE</constant></term><listitem><para> -These settings allow specific build options to be added to or removed from the CFLAGS -list when building YAFFS.</para></listitem></varlistentry> -<varlistentry><term><constant>CYGSEM_FS_YAFFS_SMALLPAGE_MODE</constant></term> -<listitem><para>This option only affects behaviour on so-called "small page" NAND devices -(those whose pages are 512 bytes long). -Such devices do not have enough space in their Out Of Band area to -store a full set of YAFFS metadata tags. There are two ways to work -around this: <itemizedlist><listitem><para><constant>YAFFS2</constant> mode - -the default - uses regular tags, but at -a price: it steals 16 bytes from the available space per page to store -them. <emphasis>This reduces the apparent available -size of your filesystem by 1/32!</emphasis></para></listitem> -<listitem><para><constant>YAFFS1</constant> mode places a smaller tagset -in the OOB area, but with a different side-effect: whenever a page is -deleted, one byte of the tags area has to be rewritten. Some devices -forbid rewrite-without-erase in this way, so it may not be safe for you -to use this option. <emphasis>You must refer to the spec sheet for the chip on -your board before selecting this option!</emphasis></para></listitem></itemizedlist> -</para></listitem></varlistentry> -<varlistentry><term><constant>CYGSEM_FS_YAFFS_OMIT_YAFFS2_CODE</constant></term><listitem><para> -This causes all YAFFS2 code to be omitted from the build. This option only makes sense when -all the devices on which YAFFS is to be used are small-page and operating in YAFFS1 mode. -<note><para>There is no corresponding option to omit YAFFS1 code, because that code is only -compiled when <constant>CYGSEM_FS_YAFFS_SMALLPAGE_MODE</constant> is set to YAFFS1. </para></note> -</para></listitem></varlistentry> -</variablelist> -</sect2> -</sect1> - -<sect1 id="yaffs-using"><title>Using YAFFS</title> -<para> -YAFFS appears in the eCos filesystem table. -This means that you can mount a filesystem in the standard Unix-like way, -then interact with it with calls to open, read, etc. -</para> - -<sect2 id="yaffs-mounting"><title>Mounting a filesystem</title> - -<para> -Before you can use a filesystem, it must be <emphasis>mounted</emphasis>. -</para> - -<para> -A NAND device is logically organised as one or more -<emphasis>partitions</emphasis>, which are -usually set up by the relevant platform HAL. -You need to tell the mount command -which device and partition you wish to access. In the following example, -we are mounting partition 0 of the <emphasis>onboard</emphasis> NAND device. -</para> -<!-- FIXME: Update if partition naming is changed. --> - -<programlisting> -rv = mount("onboard/0", "/nand", "yaffs"); -</programlisting> - -<note><para>The <emphasis>device</emphasis> argument to the -<function>mount</function> call is a NAND-specific device name, not -an entry in /dev. -Refer to the documentation for your platform HAL for details of how -the NAND device(s) are named, and to the NAND library documentation -for details of how partitions are addressed. -</para></note> - -<para> -You can, if you wish, make the filesystem mounting automatic at -static constructor time with the MTAB_ENTRY macro. (Your platform -HAL may already do this; check it carefully.) -</para> - -<programlisting> -MTAB_ENTRY(my_nand, "/nand", "yaffs", "onboard/0", "", 0); -</programlisting> - -<note><para>This example is for eCosPro. In eCos, the MTAB_ENTRY macro -takes only four arguments.</para></note> - -<sect3 id="yaffs-mount-options"><title>Mount-time options</title> -<para> -eCosPro allows various options to be passed to a filesystem at mount time, -by combining them with the filesystem argument in a particular format. -YAFFS understands the following options: -</para> - -<itemizedlist> -<listitem><para><constant>reserved</constant>=<int> The number of -physical NAND blocks to reserve for garbage collection and block failures -(minimum 2). The default is set in CDL as -<constant>CYGNUM_FS_YAFFS_RESERVED_BLOCKS</constant>.</para></listitem> -<listitem><para><constant>caches</constant>=<int> The number of -page cache entries to use. -Values of 10 to 20 are recommended. -The default is set in CDL as -<constant>CYGNUM_FS_YAFFS_SHORTOP_CACHES</constant>.</para></listitem> -<listitem><para><constant>skip-checkpoint-read</constant> Instructs YAFFS -to not attempt to reload the filesystem from a checkpoint, if one exists. -In other words, this option forces a full filesystem scan whether or not -one is necessary.</para></listitem> -</itemizedlist> -</sect3> -</sect2> - -<sect2 id="yaffs-sync"><title>Data flushing</title> -<para> -YAFFS operates a cacheing layer in order to save undue wear on the -NAND chip if many small writes are performed. Because of this, -if you wish to ensure that any data written to a still-open file has -been fully flushed, you must make a synchronisation request. This is -done with the <function>fsync</function> function, which takes as its -argument the file descriptor of the file you wish to synchronise.</para> -</sect2> - -<sect2 id="yaffs-checkpointing"><title>Checkpointing</title> -<para> -When mounting a filesystem, YAFFS has to scan the NAND chip to recreate -its internal state. This can be a slow process, but is made much -faster if there is a valid <emphasis>checkpoint</emphasis>. -</para> - -<para> -A checkpoint is written out automatically when you unmount the filesystem. -At any other time, you can manually force a checkpoint to be written -with one of the following functions: -</para> - -<itemizedlist> -<listitem><para><function>cyg_fs_fssync(mountpoint)</function> -synchronises a filesystem (automatically called on umount)</para></listitem> -<listitem><para><function>sync</function> synchronises all mounted -filesystems.</para></listitem> -</itemizedlist> - -<note><para> -A checkpoint becomes invalid as soon as there have been any other writes -to the filesystem. Finding a good place to sync is necessarily dependent -on your application logic.</para> -</note> -</sect2> - -<sect2 id="yaffs-limitations"><title>Limitations</title> -<para> -Although YAFFS is a Unix-compatible filesystem, the eCos port does not -provide support for the full range of Unix attributes. -</para> -<itemizedlist> -<listitem><para> eCos does not check file or directory permissions; -everything it creates is given fixed user and group IDs of zero and -standard permissions (files rw-r--r--, directories rwxr-xr-x).</para></listitem> -<listitem><para> It is not currently possible to change file ownership -or permissions.</para></listitem> -<listitem><para> It is not currently possible to create symbolic links, -FIFOs (named pipes), sockets or device nodes.</para></listitem> -<listitem><para> Hard links to files work in the expected way. Hard -links to directories are forbidden.</para></listitem> -<listitem><para> It is not possible to unlink the '.', '..' or -'lost+found' special directories.</para></listitem> -</itemizedlist> - -<note><para> -If you will be sharing a YAFFS filesystem between eCos and some other -operating system, you are advised to carefully check the other system's -definitions of mode (permission) bits and whether any translation may be -required.</para> -</note> -</sect2> -</sect1> - -<sect1 id="yaffs-mem-reqs"><title>Memory requirements</title> -<para> -The amount of RAM required by YAFFS to hold its in-memory data structures -grows with the number of objects (files and directories) in your -filesystem. -You are recommended to test your application thoroughly to ensure -that sufficient memory exists for YAFFS to operate with the -most complicated filesystem it is likely to encounter.</para> - -<para> -If you wish to estimate your RAM usage, the YAFFS author provides the -following calculation:</para> - -<itemizedlist> -<listitem><para> The partition itself requires a yaffs_DeviceStruct of 3608 -bytes.</para></listitem> -<listitem><para> If CYGNUM_FS_YAFFS_SHORTOP_CACHES is enabled, each -is the size of a NAND page plus 28 bytes.</para></listitem> -<listitem><para> Every object (file, directory or hardlink) in the -filesystem takes a yaffs_Object struct, which is 124 bytes.</para></listitem> -<listitem><para> Every page of every file requires a Tnode entry, but -they are always allocated in groups of 16 at a time.</para> - <itemizedlist> - <listitem><para>The size of a single Tnode entry is the - number of <emphasis>bits</emphasis> required to number all the - pages in the NAND partition YAFFS is using, numbering from - <emphasis>one</emphasis>; this is rounded up to a multiple of 2, - and has an absolute minimum of sixteen bits.</para></listitem> - <listitem><para>For example: on a partition with 65536 pages, - seventeen bits are required for the numbering, which round up to - 18. Therefore each file takes 288 bits (36 bytes) per group of Tnodes, - and one group of Tnodes will cover up to sixteen pages of data.</para></listitem> - </itemizedlist> - </listitem> -</itemizedlist> - -<note><para><emphasis>Actual memory consumption will be slightly -higher than suggested by the above.</emphasis> This arises from the -tree structure holding the Tnodes, overheads from the heap itself, -and so on.</para></note> - -<para> -YAFFS calls the standard <function>malloc</function> function to allocate -memory and <function>free</function> to release it. Normally, the eCos -heap occupies all spare RAM not needed for the program, its static -data or the stacks. Therefore, most applications will not need to do -anything special beyond ensuring there is enough spare RAM available on -the platform.</para> - -<tip><para> -If you wish to experiment with restricted-size heaps to determine -much memory your application actually uses under YAFFS, -you may find the option -<constant>CYGSEM_MEMALLOC_INVOKE_OUT_OF_MEMORY</constant> of use. -</para></tip> - -<sect2 id="yaffs-mem-reqs-example"><title>Worked example</title> -<para> -Consider a YAFFS filesystem hosted by a NAND partition with 65536 pages, -each of size 2k, using the default setting of ten short-op caches. -On this filesystem we shall store 10000 files each of -size 10240 bytes, hence each requires a single group of Tnodes. -</para> - -<table frame=all pgwide=0><title>YAFFS RAM use worked example</title> -<tgroup cols=2> -<colspec colname=c1> -<colspec colname=c2> -<thead><row> -<entry>Consumer</entry> -<entry>RAM used (bytes)</entry> -</row></thead> -<tfoot><row> -<entry>Total</entry> -<entry align=right> 1,624,368 </entry> -</row></tfoot> -<tbody> -<row> -<entry> yaffs_DeviceStruct </entry> -<entry align=right> 3,608 </entry> -</row> -<row> -<entry> Short-op caches @ 10 x (2048+28)</entry> -<entry align=right> 20,760 </entry> -</row> -<row> -<entry> yaffs_Objects @ 10,000 x 124 </entry> -<entry align=right> 1,240,000 </entry> -</row> -<row> -<entry> Tnode groups @ 10,000 x 36 <emphasis>(see above)</emphasis></entry> -<entry align=right> 360,000 </entry> -</row> -</tbody> -</tgroup> -</table> - -<para> -This example is a close match to the actual consumption measured by -eCosCentric during testing. (The measured consumption as reported -by <function>mallinfo</function> was 1,681,112 bytes, which includes -the heap's own overheads.) -</para> -</sect2> -</sect1> - -<sect1 id="yaffs-testing"><title>Testing</title> -<para> -YAFFS is supplied with a number of test programs, some of which are have been -adapted from tests for other filesystems in eCos. -</para> - -<glosslist> -<glossentry><glossterm>fops</glossterm><glossdef><para> -This was the first basic test created for the port of the filesystem. -It is believed to exercise all of the code paths (filesystem operations, -file operations and directory operations) within the eCos-YAFFS -adaptation layer. </para> <para> -This test was originally intended to run on a synthetic NAND filesystem. -On real NAND chips, it deliberately omits the more stressful routines to -avoid undue wear on the hardware. -</para></glossdef></glossentry> -<glossentry><glossterm>yaffs1</glossterm><glossdef><para> -A number of filesystem edge-case semantic tests, including -file and directory creation and deletion, -invalid open and rename operations, and -removing nonexistent files and directories. -</para></glossdef></glossentry> -<glossentry><glossterm>yaffs2</glossterm><glossdef><para> -Concurrent multi-threaded filesystem access and consistency checks. -</para></glossdef></glossentry> -<glossentry><glossterm>yaffs4</glossterm><glossdef><para> -Semantic and edge-case testing - like yaffs1 - but with long file names. -</para></glossdef></glossentry> -<glossentry><glossterm>yaffs5</glossterm><glossdef><para> -Tests that file reading and writing works over reasonably large files -(up to 1Mbyte) with different I/O chunk sizes. Some operation timings -are collected and reported, as is the data rate on large files. -</para></glossdef></glossentry> -<glossentry><glossterm>yaffs6</glossterm><glossdef><para> -Semantic and edge-case testing - like yaffs1 - but with Cyrillic filenames -in order to test UTF-8 correctness. -</para></glossdef></glossentry> -<glossentry><glossterm>mounttime</glossterm><glossdef><para> -A simple benchmark which repeatedly mounts and unmounts the filesystem -and measures how long this takes. -You can optionally use the <filename>mkfiles</filename> routine - also -present in the tests directory - to create many short files so you can -test performance on a loaded filesystem. -</para></glossdef></glossentry> -<glossentry><glossterm>hammer</glossterm><glossdef><para> -A stress test designed to shake out corner cases. -Repeatedly creates many files of varying sizes from multiple threads -until the filesystem fills up, then verifies their contents and removes -them. From time to time, all threads pause and the filesystem is -unmounted and remounted. </para><para>This test is particularly useful when -combined with the bad block injection functionality provided by -the synthetic NAND device. It has been used in this way by eCosCentric to -thoroughly test this package's stability under error conditions. -<note><para>This test runs forever, until interrupted.</para></note> -</para></glossdef></glossentry> -</glosslist> -</sect1> -</chapter> - -<chapter id="yaffs-redboot"><title>Using YAFFS with RedBoot</title> -<para> -It is possible to link YAFFS into RedBoot and use it to boot an -executable image stored on a NAND array. -</para> - -<para> -This is done by configuring and building RedBoot largely in the normal way. -You will need to add <filename>CYGPKG_FS_YAFFS</filename> and -<filename>CYGPKG_IO_FILEIO</filename> to your configuration, plus their -attendant dependencies. -</para> - -<para> -The presence of CYGPKG_IO_FILEIO activates the <filename>fs</filename> series -of RedBoot commands. The following (edited) transcript illustrates how -they might -be used in concert with other RedBoot commands to store an ELF image on -a NAND partition, load it back and execute: -</para> - -<programlisting> -RedBoot> fs mount -d onboard/0 -t yaffs /nand -yaffs: restored from checkpoint -RedBoot> load -r -h my.tftp.ip.address -b %{freememlo} my.image -Using default protocol (TFTP) -Raw file loaded 0xa013f000-0xa01554b3, assumed entry at 0xa013f000 -RedBoot> fs write /nand/myimg.elf -RedBoot> fs list /nand - 1 drwxr-xr-x 0 size 0 . - 1 drwxr-xr-x 0 size 0 .. - 262 -rw-r--r-- 0 size 91316 myimg.elf - 2 drwxr-xr-x 0 size 0 lost+found -RedBoot> load -m file /nand/myimg.elf -RedBoot> go -Hello, NAND world! -</programlisting> - -<note><para>When you command RedBoot to execute an image, it -first synchronises all mounted filesystems. Therefore, -provided these filesystems support the synchronisation operation -(which YAFFS does), it is not always necessary to unmount them before -invoking an image. -</para> -</note> - -<sect1 id="yaffs-rb-mem"><title>Memory considerations under RedBoot</title> -<para> -RedBoot traditionally has very limited requirements for memory management; -the main need is for there to be free space in RAM at the correct -(physical) address to load an image before jumping to it. -</para> - -<para> -Introducing YAFFS brings with it not just the need to have dynamically -allocatable RAM (<filename>CYGPKG_MEMALLOC</filename>), but enough -to replay the filesystem journal. This must be balanced against the need -for RAM to load images into. -</para> - -<para> -When the <filename>CYGPKG_MEMALLOC</filename> package is present in -RedBoot, by default a small (64k) heap is set up so that the maximum RAM -possible is available for loading images. This is not enough to -support YAFFS in any circumstances, so the following definition has -been included in the <filename>yaffs.cdl</filename> file: -</para> - -<programlisting> -requires { CYGPKG_REDBOOT implies (CYGMEM_REDBOOT_WORKSPACE_HEAP_SIZE >= 0x00014000) } -</programlisting> - -<caution><para> -This declaration only provideds the bare minimum heap required to mount a -trivial YAFFS filesystem. More will be required for all but the simplest -of cases and it is recommended that you test for typical use in your -environment. Refer also to <xref linkend="yaffs-mem-reqs">. -</para></caution> - -<para> -It is recommended that, should you wish to make a filesystem usable by -RedBoot, your platform HAL should make a similar -declaration in its CDL to establish an appropriate heap size. - -For example, the platform HAL for the EA LPC2468 OEM board - which has -a 128MB NAND chip on-board - contains the following declaration: -</para> - -<programlisting> -requires { (CYGPKG_REDBOOT && CYGPKG_FS_YAFFS) implies (CYGMEM_REDBOOT_WORKSPACE_HEAP_SIZE >= 0x20000) } -</programlisting> - -<tip><para> -If you wish to experiment with restricted heaps to determine -much memory your application actually uses under YAFFS, -you may find the option -<constant>CYGSEM_MEMALLOC_INVOKE_OUT_OF_MEMORY</constant> of use. -</para></tip> -</sect1> -</chapter> -</part> - -<!-- ### Uncomment to make a standalone book: -</book> - /### -->
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/devextras.h +++ /dev/null @@ -1,198 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -/* - * This file is just holds extra declarations of macros that would normally - * be providesd in the Linux kernel. These macros have been written from - * scratch but are functionally equivalent to the Linux ones. - * - */ - -#include "ecos-yaffs.h" - -#ifndef __EXTRAS_H__ -#define __EXTRAS_H__ - - -#if !(defined __KERNEL__) - -/* Definition of types */ -typedef unsigned char __u8; -typedef unsigned short __u16; -typedef unsigned __u32; - -#endif - -/* - * This is a simple doubly linked list implementation that matches the - * way the Linux kernel doubly linked list implementation works. - */ - -struct ylist_head { - struct ylist_head *next; /* next in chain */ - struct ylist_head *prev; /* previous in chain */ -}; - - -/* Initialise a static list */ -#define YLIST_HEAD(name) \ -struct ylist_head name = { &(name), &(name)} - - - -/* Initialise a list head to an empty list */ -#define YINIT_LIST_HEAD(p) \ -do { \ - (p)->next = (p);\ - (p)->prev = (p); \ -} while (0) - - -/* Add an element to a list */ -static __inline__ void ylist_add(struct ylist_head *newEntry, - struct ylist_head *list) -{ - struct ylist_head *listNext = list->next; - - list->next = newEntry; - newEntry->prev = list; - newEntry->next = listNext; - listNext->prev = newEntry; - -} - -static __inline__ void ylist_add_tail(struct ylist_head *newEntry, - struct ylist_head *list) -{ - struct ylist_head *listPrev = list->prev; - - list->prev = newEntry; - newEntry->next = list; - newEntry->prev = listPrev; - listPrev->next = newEntry; - -} - - -/* Take an element out of its current list, with or without - * reinitialising the links.of the entry*/ -static __inline__ void ylist_del(struct ylist_head *entry) -{ - struct ylist_head *listNext = entry->next; - struct ylist_head *listPrev = entry->prev; - - listNext->prev = listPrev; - listPrev->next = listNext; - -} - -static __inline__ void ylist_del_init(struct ylist_head *entry) -{ - ylist_del(entry); - entry->next = entry->prev = entry; -} - - -/* Test if the list is empty */ -static __inline__ int ylist_empty(struct ylist_head *entry) -{ - return (entry->next == entry); -} - - -/* ylist_entry takes a pointer to a list entry and offsets it to that - * we can find a pointer to the object it is embedded in. - */ - - -#define ylist_entry(entry, type, member) \ - ((type *)((char *)(entry)-(unsigned long)(&((type *)NULL)->member))) - - -/* ylist_for_each and list_for_each_safe iterate over lists. - * ylist_for_each_safe uses temporary storage to make the list delete safe - */ - -#define ylist_for_each(itervar, list) \ - for (itervar = (list)->next; itervar != (list); itervar = itervar->next) - -#define ylist_for_each_safe(itervar, saveVar, list) \ - for (itervar = (list)->next, saveVar = (list)->next->next; \ - itervar != (list); itervar = saveVar, saveVar = saveVar->next) - - -#if !(defined __KERNEL__) - - -#ifndef WIN32 -#include <sys/stat.h> -#endif - - -#ifdef CONFIG_YAFFS_PROVIDE_DEFS -/* File types */ - - -#define DT_UNKNOWN 0 -#define DT_FIFO 1 -#define DT_CHR 2 -#define DT_DIR 4 -#define DT_BLK 6 -#define DT_REG 8 -#define DT_LNK 10 -#define DT_SOCK 12 -#define DT_WHT 14 - - -#ifndef WIN32 -#include <sys/stat.h> -#endif - -/* - * Attribute flags. These should be or-ed together to figure out what - * has been changed! - */ -#define ATTR_MODE 1 -#define ATTR_UID 2 -#define ATTR_GID 4 -#define ATTR_SIZE 8 -#define ATTR_ATIME 16 -#define ATTR_MTIME 32 -#define ATTR_CTIME 64 - -struct iattr { - unsigned int ia_valid; - unsigned ia_mode; - unsigned ia_uid; - unsigned ia_gid; - unsigned ia_size; - unsigned ia_atime; - unsigned ia_mtime; - unsigned ia_ctime; - unsigned int ia_attr_flags; -}; - -#endif - -#else - -#include <linux/types.h> -#include <linux/fs.h> -#include <linux/stat.h> - -#endif - - -#endif
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/ecos-yaffs-diriter.c +++ /dev/null @@ -1,89 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -//============================================================================= -// -// ecos-yaffs-diriter.c -// -// Directory Iterator support for the eCos-YAFFS adaptation layer -// -//============================================================================= -// -//============================================================================= -//#####DESCRIPTIONBEGIN#### -// -// Author(s): wry -// Date: 2009-05-07 -// Note: This file is a derivative work of direct/yaffsfs.c and so -// should be taken as inheriting its license terms - hence the -// copyright banner above. -// -//####DESCRIPTIONEND#### -//============================================================================= - -#include "ecos-yaffs-diriter.h" -#include <cyg/infra/cyg_ass.h> - -// Directory operations -------------------------------------------------- - -struct ylist_head eyaffs_all_diriters; - -void eyaffs_diriter_advance(eyaffs_diriter *ctx) -{ - CYG_ASSERT(ctx && ctx->node && ctx->node->variantType == YAFFS_OBJECT_TYPE_DIRECTORY, "node not a directory"); - if ( !ctx->nextret ) return; // already finished, nothing to do - - struct ylist_head * top = &ctx->node->variant.directoryVariant.children; - - if (ylist_empty(top)) { - ctx->nextret = NULL; - return; - } - - struct ylist_head *next = ctx->nextret->siblings.next; - - if( next == top ) // finished - ctx->nextret = NULL; - else - ctx->nextret = ylist_entry(next,yaffs_Object,siblings); // works backwards from 'next' to its containing y_Object -} - -void eyaffs_diriter_rewind(eyaffs_diriter *ctx) -{ - CYG_ASSERT(ctx && ctx->node && ctx->node->variantType == YAFFS_OBJECT_TYPE_DIRECTORY, "node not a directory"); - - struct ylist_head * top = &ctx->node->variant.directoryVariant.children; - if (ylist_empty(top)) - ctx->nextret = NULL; - else - ctx->nextret = ylist_entry(top->next, yaffs_Object, siblings); -} - -void eyaffs_diriter_objremove_callback(yaffs_Object *obj) -{ - struct ylist_head *i; - eyaffs_diriter *cur; - - if(!eyaffs_all_diriters.next) return; // nothing to do - - ylist_for_each(i, &eyaffs_all_diriters) { // foreach ($i) @eyaffs_all_diriters - if (i) { - // 'i' points to the 'iterlist' member of an eyaffs_diriter, sort out cur to point to it - cur = ylist_entry(i, eyaffs_diriter, iterlist); - - if(cur->nextret == obj) // then fix it up - eyaffs_diriter_advance(cur); - } - } -} -
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/ecos-yaffs-diriter.h +++ /dev/null @@ -1,71 +0,0 @@ -#ifndef CYGONCE_ECOS_YAFFS_DIRITER_H -#define CYGONCE_ECOS_YAFFS_DIRITER_H -//============================================================================= -// -// ecos-yaffs-diriter.h -// -// Directory Iterator support for the eCos-YAFFS adaptation layer -// -//============================================================================= -// ####ECOSGPLCOPYRIGHTBEGIN#### -// ------------------------------------------- -// This file is part of eCos, the Embedded Configurable Operating System. -// Copyright (C) 2009 eCosCentric Limited. -// -// eCos is free software; you can redistribute it and/or modify it under -// the terms of the GNU General Public License as published by the Free -// Software Foundation; either version 2 or (at your option) any later -// version. -// -// eCos is distributed in the hope that it will be useful, but WITHOUT -// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -// for more details. -// -// You should have received a copy of the GNU General Public License -// along with eCos; if not, write to the Free Software Foundation, Inc., -// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -// -// As a special exception, if other files instantiate templates or use -// macros or inline functions from this file, or you compile this file -// and link it with other works to produce a work based on this file, -// this file does not by itself cause the resulting work to be covered by -// the GNU General Public License. However the source code for this file -// must still be made available in accordance with section (3) of the GNU -// General Public License v2. -// -// This exception does not invalidate any other reasons why a work based -// on this file might be covered by the GNU General Public License. -// ------------------------------------------- -// ####ECOSGPLCOPYRIGHTEND#### -//============================================================================= -//#####DESCRIPTIONBEGIN#### -// -// Author(s): wry -// Date: 2009-05-07 -// -//####DESCRIPTIONEND#### -//============================================================================= - -#include "yaffs_guts.h" - -// Directory operations -------------------------------------------------- - -/* Directory iterator used by readdir(). - * We need to keep track of all live diriters so as to avoid jumping off - * to Fishkill in the event that our next-object-to-return is deleted. - * Thankfully, yaffs provides a callback mechanism so we can detect - * this case. */ -typedef struct eyaffs_diriter { - struct ylist_head iterlist; // doubly linked list, impl by devextras.h - yaffs_Object * node; - yaffs_Object * nextret; // next one to return -} eyaffs_diriter; - -extern struct ylist_head eyaffs_all_diriters; - -void eyaffs_diriter_advance(eyaffs_diriter *ctx); -void eyaffs_diriter_rewind(eyaffs_diriter *ctx); -void eyaffs_diriter_objremove_callback(yaffs_Object *obj); - -#endif //CYGONCE_ECOS_YAFFS_DIRITER_H
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/ecos-yaffs-nand.c +++ /dev/null @@ -1,282 +0,0 @@ -//============================================================================= -// -// ecos-yaffs-nand.c -// -// Glue for YAFFS to the eCos NAND library -// -//============================================================================= -// ####ECOSGPLCOPYRIGHTBEGIN#### -// ------------------------------------------- -// This file is part of eCos, the Embedded Configurable Operating System. -// Copyright (C) 2009 eCosCentric Limited. -// -// eCos is free software; you can redistribute it and/or modify it under -// the terms of the GNU General Public License as published by the Free -// Software Foundation; either version 2 or (at your option) any later -// version. -// -// eCos is distributed in the hope that it will be useful, but WITHOUT -// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -// for more details. -// -// You should have received a copy of the GNU General Public License -// along with eCos; if not, write to the Free Software Foundation, Inc., -// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -// -// As a special exception, if other files instantiate templates or use -// macros or inline functions from this file, or you compile this file -// and link it with other works to produce a work based on this file, -// this file does not by itself cause the resulting work to be covered by -// the GNU General Public License. However the source code for this file -// must still be made available in accordance with section (3) of the GNU -// General Public License v2. -// -// This exception does not invalidate any other reasons why a work based -// on this file might be covered by the GNU General Public License. -// ------------------------------------------- -// ####ECOSGPLCOPYRIGHTEND#### -//============================================================================= -//#####DESCRIPTIONBEGIN#### -// -// Author(s): wry -// Date: 2009-05-07 -// -//####DESCRIPTIONEND#### -//============================================================================= - -#include "ecos-yaffs.h" -#include "ecos-yaffs-nand.h" -#include "yaffs_packedtags1.h" -#include "yaffs_packedtags2.h" -#include "yaffs_tagscompat.h" -#include <cyg/nand/util.h> // for BLOCK2PAGEADDR - -int eyaffs_initialiseNAND (struct yaffs_DeviceStruct * dev) -{ - // Nothing to do - we've already inited it in mount(). - //cyg_nand_partition *part = (cyg_nand_partition*) dev->genericDevice; - return YAFFS_OK; -} - -int eyaffs_deinitialiseNAND (struct yaffs_DeviceStruct * dev) -{ - // Nothing to do - //cyg_nand_partition *part = (cyg_nand_partition*) dev->genericDevice; - return YAFFS_OK; -} - -int eyaffs_eraseBlockInNAND (struct yaffs_DeviceStruct * dev, int blockInNAND) -{ - cyg_nand_partition *part = (cyg_nand_partition*) dev->genericDevice; - int rv = cyg_nandp_erase_block(part, blockInNAND); - return rv==0 ? YAFFS_OK : YAFFS_FAIL; -} - -int eyaffs_writeChunkWithTagsToNAND (struct yaffs_DeviceStruct * dev, - int chunkInNAND, const __u8 * data, - const yaffs_ExtendedTags * tags) -{ - cyg_nand_partition *part = (cyg_nand_partition*) dev->genericDevice; - int rv; - - if (!dev->isYaffs2) { -#ifdef CONFIG_YAFFS_NO_YAFFS1 - rv = 1; -#else - yaffs_PackedTags1 pt1; - - if (tags->chunkDeleted) { - memset(&pt1, 0xff, sizeof(pt1)); - pt1.deleted = 0; - //((CYG_BYTE*)&pt1)[8] = 0; // TODO: support 9BYTE_TAGS, if there is a demand to (requires corresponding fixup in the ECC check below) - } else { - yaffs_PackTags1(&pt1, tags); - yaffs_CalcTagsECC((yaffs_Tags *)&pt1); - } - rv = cyg_nandp_write_page(part, chunkInNAND, data, &pt1, PACKEDTAGS1_OOBSIZE); -#endif - } else { -#ifdef CYGSEM_FS_YAFFS_OMIT_YAFFS2_CODE - return YAFFS_FAIL; -#else - // YAFFS2 mode. - // N.B. We are not doing ECC - the NAND layer does that - so don't - // need to bother with the whole tags struct, just the bit that matters. - - if (!data || !tags) { - T(YAFFS_TRACE_ERROR, - (TSTR("**>> yaffs2: both data and tags must be present" TENDSTR))); - YBUG(); - return YAFFS_FAIL; - } - - if (dev->inbandTags) { - yaffs_PackedTags2TagsPart *pt2tp; - pt2tp = (yaffs_PackedTags2TagsPart *)(data + dev->nDataBytesPerChunk); - yaffs_PackTags2TagsPart(pt2tp, tags); - rv = cyg_nandp_write_page(part, chunkInNAND, data, 0, 0); - } else { - yaffs_PackedTags2 pt; - void *packed_tags_ptr = dev->noTagsECC ? (void*) &pt.t : (void*) &pt; - yaffs_PackTags2(dev, &pt, tags); - rv = cyg_nandp_write_page(part, chunkInNAND, data, packed_tags_ptr, PACKEDTAGS2_OOBSIZE(dev)); - } -#endif - } - - // all done: - return rv==0 ? YAFFS_OK : YAFFS_FAIL; -} - -int eyaffs_readChunkWithTagsFromNAND (struct yaffs_DeviceStruct * dev, - int chunkInNAND, __u8 * data, - yaffs_ExtendedTags * tags) -{ - cyg_nand_partition *part = (cyg_nand_partition*) dev->genericDevice; - int localData = 0; - int rv; - - if (!dev->isYaffs2) { -#ifdef CONFIG_YAFFS_NO_YAFFS1 - rv = 1; -#else - yaffs_PackedTags1 pt1; - memset(&pt1, 0xff, sizeof(yaffs_PackedTags1)); - - rv = cyg_nandp_read_page(part, chunkInNAND, data, &pt1, PACKEDTAGS1_OOBSIZE); - - if (rv == 0) { - if (yaffs_CheckFF((CYG_BYTE*)&pt1, 8)) { - // block is empty - if (tags) { - memset(tags, 0, sizeof(*tags)); - tags->eccResult = YAFFS_ECC_RESULT_NO_ERROR; - } - } else { - // must check and correct tags' mini-ecc. - int deleted = !pt1.deleted; // this would break the tags ECC. - pt1.deleted = 1; - // TODO: support 9BYTE_TAGS if there is a demand. - int rv2 = yaffs_CheckECCOnTags((yaffs_Tags *)&pt1); - if (rv2 < 0) { - T(YAFFS_TRACE_ERROR, - (TSTR ("**>>yaffs ecc error unfixed on chunk %d:0" - TENDSTR), chunkInNAND)); - dev->eccUnfixed++; - rv = EIO; - } else { - if (tags) { - yaffs_UnpackTags1(tags, &pt1); - tags->chunkDeleted = deleted; - tags->eccResult = YAFFS_ECC_RESULT_NO_ERROR; - } - - if (rv2 > 0) { - T(YAFFS_TRACE_ERROR, - (TSTR ("**>>yaffs ecc tags error fix performed on chunk %d:0" - TENDSTR), chunkInNAND)); - dev->eccFixed++; - if (tags) - tags->eccResult = YAFFS_ECC_RESULT_FIXED; - } - } - } - } // else reading the NAND failed; drop out -#endif - - } else { // YAFFS2 mode -#ifdef CYGSEM_FS_YAFFS_OMIT_YAFFS2_CODE - return YAFFS_FAIL; -#else - if (dev->inbandTags) { - if (!data) { - localData = 1; - data = yaffs_GetTempBuffer(dev, __LINE__); - } - - rv = cyg_nandp_read_page(part, chunkInNAND, data, 0, 0); - if (tags) { - yaffs_PackedTags2TagsPart *pt2tp; - pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->nDataBytesPerChunk]; - yaffs_UnpackTags2TagsPart(tags, pt2tp); - } - } else { - yaffs_PackedTags2 pt; - void *packed_tags_ptr = dev->noTagsECC ? (void*) &pt.t : (void*) &pt; - rv = cyg_nandp_read_page(part, chunkInNAND, data, packed_tags_ptr, tags ? PACKEDTAGS2_OOBSIZE(dev) : 0); - if (tags) - yaffs_UnpackTags2(dev, tags, &pt); - } -#endif - } - - // all done: - if (localData) - yaffs_ReleaseTempBuffer(dev, data, __LINE__); - - if (rv != 0) { - if (tags) { - // mark the tags as clearly useless - memset(tags, 0, sizeof(yaffs_ExtendedTags)); - tags->eccResult = YAFFS_ECC_RESULT_UNFIXED; - tags->blockBad = 1; - } - return YAFFS_FAIL; - } - return YAFFS_OK; - // TODO: go through yaffs_guts and ensure that all calls to ReadChunksWithTagsFromNAND DTRT on FAIL or if the read tags aren't valid. -} - -int eyaffs_markNANDBlockBad (struct yaffs_DeviceStruct * dev, int blockNo) -{ - cyg_nand_partition *part = (cyg_nand_partition*) dev->genericDevice; - int rv = cyg_nandp_bbt_markbad(part, blockNo); - return rv==0 ? YAFFS_OK : YAFFS_FAIL; -} - -int eyaffs_queryNANDBlock (struct yaffs_DeviceStruct * dev, int blockNo, - yaffs_BlockState * state, __u32 *sequenceNumber) -{ - yaffs_ExtendedTags tags; - cyg_nand_page_addr pg; - cyg_nand_partition *part = (cyg_nand_partition*) dev->genericDevice; - - int rv = cyg_nandp_bbt_query(part, blockNo); - if (rv < 0) return YAFFS_FAIL; - - switch(rv) { - case CYG_NAND_BBT_OK: - // Now we need to read the tags from the OOB area of the first page - pg = CYG_NAND_BLOCK2PAGEADDR(part->dev, blockNo); - // TODO: This is quite inefficient on small page devices in - // YAFFS2 mode with inbandTags enabled, as the whole page has - // to be read. Some day, it would be nice to implement part-page - // reads in the NAND layer where this can be efficiently done. - int rv2 = eyaffs_readChunkWithTagsFromNAND(dev, pg, 0, &tags); - if (rv2 == YAFFS_FAIL) { - (void) cyg_nandp_bbt_markbad(part, blockNo); - goto deadblock; - } - if (tags.chunkUsed) { - *state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; - *sequenceNumber = tags.sequenceNumber; - return YAFFS_OK; - } - *state = YAFFS_BLOCK_STATE_EMPTY; - *sequenceNumber = 0; - return YAFFS_OK; - - case CYG_NAND_BBT_WORNBAD: - case CYG_NAND_BBT_RESERVED: - case CYG_NAND_BBT_FACTORY_BAD: - deadblock: - *state = YAFFS_BLOCK_STATE_DEAD; - *sequenceNumber = 0; - return YAFFS_OK; - default: - YBUG(); // can't happen - return YAFFS_FAIL; - } -} -
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/ecos-yaffs-nand.h +++ /dev/null @@ -1,84 +0,0 @@ -#ifndef CYGONCE_ECOS_YAFFS_NAND_H -#define CYGONCE_ECOS_YAFFS_NAND_H -//============================================================================= -// -// ecos-yaffs-nand.h -// -// Glue for YAFFS to the eCos NAND library -// -//============================================================================= -// ####ECOSGPLCOPYRIGHTBEGIN#### -// ------------------------------------------- -// This file is part of eCos, the Embedded Configurable Operating System. -// Copyright (C) 2009 eCosCentric Limited. -// -// eCos is free software; you can redistribute it and/or modify it under -// the terms of the GNU General Public License as published by the Free -// Software Foundation; either version 2 or (at your option) any later -// version. -// -// eCos is distributed in the hope that it will be useful, but WITHOUT -// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -// for more details. -// -// You should have received a copy of the GNU General Public License -// along with eCos; if not, write to the Free Software Foundation, Inc., -// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -// -// As a special exception, if other files instantiate templates or use -// macros or inline functions from this file, or you compile this file -// and link it with other works to produce a work based on this file, -// this file does not by itself cause the resulting work to be covered by -// the GNU General Public License. However the source code for this file -// must still be made available in accordance with section (3) of the GNU -// General Public License v2. -// -// This exception does not invalidate any other reasons why a work based -// on this file might be covered by the GNU General Public License. -// ------------------------------------------- -// ####ECOSGPLCOPYRIGHTEND#### -//============================================================================= -//#####DESCRIPTIONBEGIN#### -// -// Author(s): wry -// Date: 2009-05-07 -// -//####DESCRIPTIONEND#### -//============================================================================= - -#include <cyg/nand/nand.h> -#include "yaffs_guts.h" // extendedTags -#include "devextras.h" // __u8 and __u32 - -// If writing a yaffs_PackedTags1, we store only its eight meaningful bytes -#define PACKEDTAGS1_OOBSIZE 8 -#define PACKEDTAGS2_OOBSIZE(dev) (dev->noTagsECC ? \ - (unsigned)sizeof(yaffs_PackedTags2TagsPart) : \ - (unsigned)sizeof(yaffs_PackedTags2)) - -int eyaffs_eraseBlockInNAND (struct yaffs_DeviceStruct * dev, int blockInNAND); -int eyaffs_initialiseNAND (struct yaffs_DeviceStruct * dev); -// not mandatory: -int eyaffs_deinitialiseNAND (struct yaffs_DeviceStruct * dev); - -#ifdef CYGSEM_FS_YAFFS_SMALLPAGE_MODE_YAFFS1 -int eyaffs_writeChunkToNAND(struct yaffs_DeviceStruct *dev, - int chunkInNAND, const __u8 *data, - const yaffs_Spare *spare); -int eyaffs_readChunkFromNAND(struct yaffs_DeviceStruct *dev, - int chunkInNAND, __u8 *data, - yaffs_Spare *spare); -#endif - -int eyaffs_writeChunkWithTagsToNAND (struct yaffs_DeviceStruct * dev, - int chunkInNAND, const __u8 * data, - const yaffs_ExtendedTags * tags); -int eyaffs_readChunkWithTagsFromNAND (struct yaffs_DeviceStruct * dev, - int chunkInNAND, __u8 * data, - yaffs_ExtendedTags * tags); -int eyaffs_markNANDBlockBad (struct yaffs_DeviceStruct * dev, int blockNo); -int eyaffs_queryNANDBlock (struct yaffs_DeviceStruct * dev, int blockNo, - yaffs_BlockState * state, __u32 *sequenceNumber); - -#endif //CYGONCE_ECOS_YAFFS_NAND_H
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/ecos-yaffs.c +++ /dev/null @@ -1,1057 +0,0 @@ -//============================================================================= -// -// ecos-eyaffs.c -// -// eyaffs interface to the eCos filesystem layer -// -//============================================================================= -// ####ECOSGPLCOPYRIGHTBEGIN#### -// ------------------------------------------- -// This file is part of eCos, the Embedded Configurable Operating System. -// Copyright (C) 2009 eCosCentric Limited. -// -// eCos is free software; you can redistribute it and/or modify it under -// the terms of the GNU General Public License as published by the Free -// Software Foundation; either version 2 or (at your option) any later -// version. -// -// eCos is distributed in the hope that it will be useful, but WITHOUT -// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -// for more details. -// -// You should have received a copy of the GNU General Public License -// along with eCos; if not, write to the Free Software Foundation, Inc., -// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -// -// As a special exception, if other files instantiate templates or use -// macros or inline functions from this file, or you compile this file -// and link it with other works to produce a work based on this file, -// this file does not by itself cause the resulting work to be covered by -// the GNU General Public License. However the source code for this file -// must still be made available in accordance with section (3) of the GNU -// General Public License v2. -// -// This exception does not invalidate any other reasons why a work based -// on this file might be covered by the GNU General Public License. -// ------------------------------------------- -// ####ECOSGPLCOPYRIGHTEND#### -//============================================================================= -//#####DESCRIPTIONBEGIN#### -// -// Author(s): wry -// Date: 2009-05-05 -// -//####DESCRIPTIONEND#### -//============================================================================= - -/* Major TODO: - * At the moment we tend to look files up by name(dirsearch), perform - * our own sanity checks, then pass on to YAFFS fns which then go and - * repeat the last step of the lookup. IWBNI we exposed corresponding - * YAFFS functions which took yaffs_Object* instead of name. */ - -#include "yportenv.h" -#include "yaffs_guts.h" -#include "yaffs_packedtags2.h" -#include "ecos-yaffs.h" -#include "ecos-yaffs-nand.h" -#include "ecos-yaffs-diriter.h" - -#include <errno.h> -#include <limits.h> -#include <stdlib.h> -#include <unistd.h> -#include <cyg/fileio/fileio.h> -#include <cyg/fileio/dirent.h> -#include <cyg/infra/cyg_ass.h> -#include <cyg/nand/nand.h> -#include <cyg/nand/util.h> - -// convenience error test macros. x should be an ecos error code. -#define ER(x) do { int _x = (x); if (_x != 0) return _x; } while(0) -#define EG(x) do { _err = (x); if (_err != 0) goto err_exit; } while(0) -// ... variants which take a negative ecos error code -#define ERm(x) ER(-(x)) -#define EGm(x) EG(-(x)) -// ... variants for YAFFS ops, which return YAFFS_OK or YAFFS_FAIL -#define YER(x) do { int _x = (x); if (_x == YAFFS_FAIL) return EIO; } while(0) - -// sneaky grab from fileio misc.cxx: -__externC cyg_mtab_entry cyg_mtab[]; -__externC cyg_mtab_entry cyg_mtab_end; - -// For yaffs_guts: -unsigned int yaffs_traceMask = CYGNUM_FS_YAFFS_TRACEMASK; - -// How many attempts do we make to write a page before giving up? -// This could easily be added to CDL. -unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS; - -// eCos doesn't support file permissions or user IDs at all. -// We hard-code sensible values in case anybody makes decisions on -// the output from stat() et al. -// (Update: As of March 2009 there is now limited support for chmod in both -// anoncvs and eCosPro.) -#define FIXED_UID 0 -#define FIXED_GID 0 -#define DIRECTORY_FIXED_PERMS (S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) -#define FILE_FIXED_PERMS (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH) -// TODO: We could make uid/gid/fixedperms configurable. - -// Helper functions and forward defs ------------------------------------- -static int eyaffs_count_links(yaffs_Object * node) -{ - int links = 0; - struct ylist_head *tmp; - ylist_for_each(tmp, &(node->hardLinks)) { - ++links; - } - return links; -} - -static int eyaffs_stat_object(yaffs_Object *node, struct stat *buf); - -// Directory search / traversal ------------------------------------------ -typedef struct ey_dirsearch -{ - yaffs_Object *dir; // directory to search - const char *path; // path to follow - yaffs_Object *node; // Node found - const char *name; // last name used - int namelen;// name fragment length - cyg_bool last; // last name in path? -} ey_dirsearch; - -static void init_dirsearch(ey_dirsearch *ds, yaffs_Object *dir, const char *name) -{ - ds->dir = dir; - ds->path = name; - ds->node = dir; - ds->name = name; - ds->namelen = 0; - ds->last = false; -} - -// Search a single directory for the next name in a path -static int find_entry(ey_dirsearch *ds) -{ - yaffs_Object *dir = ds->dir; - const char *name = ds->path; - const char *n = name; - char namelen = 0; - - yaffs_Object *d; - - // check that we really have a directory - switch (yaffs_GetObjectType(dir)) { - case DT_DIR: break; - - case DT_LNK: // TODO: symlink support - default: return ENOTDIR; - } - - // Isolate the next element of the path name. - while( *n != '\0' && *n != '/' ) - n++, namelen++; - - // Check if this is the last path element. - while( *n == '/') n++; - if( *n == '\0' ) - ds->last = true; - - // update name in dirsearch object - ds->name = name; - ds->namelen = namelen; - - // First, special case "." and "..": - if (name[0] == '.') { - if (namelen == 1) { // "." - ds->node = dir; - return ENOERR; - } else if (name[1] == '.' && namelen == 2) { // ".." - ds->node = dir->parent; - if (!ds->node) ds->node = dir; // ".." at the root stays in the root - return ENOERR; - } - } - - // Otherwise, search the directory for a matching entry - YCHAR namebuf[YAFFS_MAX_NAME_LENGTH+1]; - memcpy(namebuf, name, namelen); - namebuf[(int)namelen]=0; - - d = yaffs_FindObjectByName(dir, namebuf); - // TODO: Create a variant of y_FindObjectByName which takes dir, name and len. Indeed, that would be beneficial for a lot of its functions. - if( d == NULL ) return ENOENT; - d = yaffs_GetEquivalentObject(d); // traverse hardlinks - - // pass back the node we have found - ds->node = d; - - return ENOERR; -} - -/* Main directory search code. Use init_dirsearch() to init the struct. - * If we return with d->last set, d->name _might_ be null-terminated. - * (It will iff no trailing slashes were passed in.) - * Code that acts on the output name MUST use d->namelen and not assume - * null-termination without testing first. - */ -static int eyaffs_find(ey_dirsearch *d) -{ - if ( *(d->path) == 0 ) - return ENOERR; - for (;;) { - ER(find_entry(d)); - if (d->last) return ENOERR; - // Not done yet? Next one down... - d->dir = d->node; - d->path += d->namelen; - // While we could check file perms here, eCos doesn't support them. - while ( *(d->path) == '/' ) ++d->path; // skip separators - } -} - -// File operations -------------------------------------------------------- - -static int eyaffs_pathconf(yaffs_Object *node, struct cyg_pathconf_info *info) -{ - switch(info->name) { - case _PC_LINK_MAX: - info->value = LINK_MAX; - return ENOERR; - - case _PC_NAME_MAX: - info->value = YAFFS_MAX_NAME_LENGTH; - return ENOERR; - - case _PC_PATH_MAX: - info->value = PATH_MAX; - return ENOERR; - - case _PC_PRIO_IO: - case _PC_SYNC_IO: - info->value=0; - return ENOERR; - - case _PC_NO_TRUNC: - info->value=1; - return ENOERR; - - case _PC_MAX_CANON: // terminals only - case _PC_MAX_INPUT: // terminals - case _PC_PIPE_BUF: // pipes - case _PC_ASYNC_IO: // not supported - case _PC_CHOWN_RESTRICTED: // we don't track owners - case _PC_VDISABLE: // terminals - default: - info->value = -1; - return EINVAL; - } -} - -static int eyaffs_fo_read (struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio) -{ - yaffs_Object *node = (yaffs_Object*) fp->f_data; - int i; - off_t pos = fp->f_offset; - ssize_t resid = uio->uio_resid; - - for (i=0; i < uio->uio_iovcnt; i++) { - cyg_iovec *iov = &uio->uio_iov[i]; - unsigned char *buf = iov->iov_base; - off_t len = iov->iov_len; - - if (pos + len > node->variant.fileVariant.fileSize) - len = node->variant.fileVariant.fileSize - pos; - - while (len > 0 && pos < node->variant.fileVariant.fileSize) { - off_t l = yaffs_ReadDataFromFile(node, buf, pos, len); - len -= l; - pos += l; - buf += l; - resid -= l; - } - } - uio->uio_resid = resid; - fp->f_offset = pos; - return ENOERR; -} - -static int eyaffs_fo_write (struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio) -{ - yaffs_Object *node = (yaffs_Object*) fp->f_data; - int i; - off_t pos = fp->f_offset; - ssize_t resid = uio->uio_resid; - - if (fp->f_flag & CYG_FAPPEND) - pos = fp->f_offset = node->variant.fileVariant.fileSize; - - CYG_ASSERT(pos >= 0, "pos became negative"); - - for (i=0; i < uio->uio_iovcnt; i++) { - cyg_iovec *iov = &uio->uio_iov[i]; - unsigned char *buf = iov->iov_base; - off_t len = iov->iov_len; - - while (len > 0) { - off_t l = yaffs_WriteDataToFile(node, buf, pos, len, 0); - len -= l; - buf += l; - pos += l; - resid -= l; - - if (l==0) goto stop; // urgh, how does this cope with dire errors? - } - } - - // Timestamps are updated on yaffs_FlushFile() -stop: - uio->uio_resid = resid; - fp->f_offset = pos; - return ENOERR; -} - - -static int eyaffs_fo_lseek (struct CYG_FILE_TAG *fp, off_t *apos, int whence ) -{ - yaffs_Object *node = (yaffs_Object*) fp->f_data; - off_t pos = *apos; - - switch (whence) - { - case SEEK_SET: - // Pos is already where we want to be - break; - case SEEK_CUR: - // Add pos to current offset - pos += fp->f_offset; - break; - case SEEK_END: - // Add pos to file size - pos += node->variant.fileVariant.fileSize; - break; - default: - return EINVAL; - } - - // Check that pos is still within current file size, - // or at the very end - if (pos < 0 || pos > node->variant.fileVariant.fileSize) - return EINVAL; - - *apos = fp->f_offset = pos; - return ENOERR; -} - -static int eyaffs_fo_ioctl (struct CYG_FILE_TAG *fp, CYG_ADDRWORD com, - CYG_ADDRWORD data) -{ - return EINVAL; // No ioctls defined -} - -static int eyaffs_fo_fsync (struct CYG_FILE_TAG *fp, int mode ) -{ - yaffs_Object *node = (yaffs_Object*) fp->f_data; - int ymode = (mode == CYG_FDATASYNC) ? 1 : 0; - YER(yaffs_FlushFile(node,1,ymode)); - return ENOERR; -} - -static int eyaffs_fo_close (struct CYG_FILE_TAG *fp) -{ - yaffs_Object *node = (yaffs_Object*) fp->f_data; - - if (node->inUse) { - YER(yaffs_FlushFile(node,1,0)); - node->inUse--; - if (node->inUse <= 0 && node->unlinked) { - YER(yaffs_DeleteObject(node)); - } - } - fp->f_data = 0; - return ENOERR; -} - -static int eyaffs_fo_fstat (struct CYG_FILE_TAG *fp, struct stat *buf ) -{ - yaffs_Object *node = (yaffs_Object*) fp->f_data; - - return eyaffs_stat_object(node, buf); -} - -static int eyaffs_fo_getinfo (struct CYG_FILE_TAG *fp, int key, void *buf, int len ) -{ - yaffs_Object *node = (yaffs_Object*) fp->f_data; - - switch(key) { - case FS_INFO_CONF: - return eyaffs_pathconf(node, (struct cyg_pathconf_info *)buf ); - } - return EINVAL; -} -static int eyaffs_fo_setinfo (struct CYG_FILE_TAG *fp, int key, void *buf, int len ) -{ - return EINVAL; // None defined -} - -static cyg_fileops eyaffs_fileops = -{ - eyaffs_fo_read, eyaffs_fo_write, - eyaffs_fo_lseek, eyaffs_fo_ioctl, - cyg_fileio_seltrue, - eyaffs_fo_fsync, eyaffs_fo_close, - eyaffs_fo_fstat, - eyaffs_fo_getinfo, eyaffs_fo_setinfo -}; - -// Directory entrypoints -------------- - -static int eyaffs_fo_dirread (struct CYG_FILE_TAG *fp, struct CYG_UIO_TAG *uio) -{ - eyaffs_diriter *diriter = (eyaffs_diriter*) fp->f_data; - struct dirent *ent = (struct dirent *)uio->uio_iov[0].iov_base; - unsigned offset = fp->f_offset; - off_t len = uio->uio_iov[0].iov_len; - - if( len < sizeof(struct dirent) ) - return EINVAL; - - if (offset == 0) { - strcpy(ent->d_name, "."); -#ifdef CYGPKG_FS_YAFFS_RET_DIRENT_DTYPE - ent->d_type = __stat_mode_DIR; -#endif - goto done; - } - if (offset == 1) { - strcpy(ent->d_name, ".."); -#ifdef CYGPKG_FS_YAFFS_RET_DIRENT_DTYPE - ent->d_type = __stat_mode_DIR; -#endif - goto done; - } - - // else use the iter: - yaffs_Object * node = diriter->nextret; - - if (!node) goto done_eof; - - yaffs_GetObjectName(node, ent->d_name, sizeof(ent->d_name)); -#ifdef CYGPKG_FS_YAFFS_RET_DIRENT_DTYPE - ent->d_type = yaffs_GetObjectType(node); -#endif - eyaffs_diriter_advance(diriter); - -done: - uio->uio_resid -= sizeof(struct dirent); - fp->f_offset++; -done_eof: - return ENOERR; -} - -static int eyaffs_fo_dirlseek (struct CYG_FILE_TAG *fp, off_t *pos, int whence ) -{ - // This is easy, we only allow a full rewind. - if (whence != SEEK_SET || *pos != 0) - return EINVAL; - // get and rewind the diriter - eyaffs_diriter *diriter = (eyaffs_diriter*) fp->f_data; - eyaffs_diriter_rewind(diriter); - fp->f_offset = 0; - return ENOERR; -} - -static int eyaffs_fo_dirclose (struct CYG_FILE_TAG *fp) -{ - eyaffs_diriter *diriter = (eyaffs_diriter*) fp->f_data; - - diriter->node->inUse--; - ylist_del(&diriter->iterlist); - memset(diriter, 0xbb, sizeof(eyaffs_diriter)); - fp->f_data = 0; - YFREE(diriter); - return ENOERR; -} - - -static cyg_fileops eyaffs_dirops = -{ - eyaffs_fo_dirread, - (cyg_fileop_write *)cyg_fileio_enosys, - eyaffs_fo_dirlseek, - (cyg_fileop_ioctl *)cyg_fileio_enosys, - cyg_fileio_seltrue, - (cyg_fileop_fsync *)cyg_fileio_enosys, - eyaffs_fo_dirclose, - (cyg_fileop_fstat *)cyg_fileio_enosys, - (cyg_fileop_getinfo *)cyg_fileio_enosys, - (cyg_fileop_setinfo *)cyg_fileio_enosys -}; - -// Filesystem operations ------------------------------------------------- -// N.B. Function names are prefixed with 'e' to distinguish them from -// those internal to yaffs. - - -static int eyaffs_mount ( cyg_fstab_entry *fste, cyg_mtab_entry *mte ) -{ - int _err = ENOERR; - - cyg_nand_device *nand = 0; - cyg_nand_partition *part = 0; - ERm(cyg_nand_resolve_device(mte->devname, &nand, &part)); - - if (!part || !part->dev || (part->last <= part->first) ) { - TOUT(("eyaffs_mount: Invalid partition\n")); - ER(EINVAL); - } - - // Is this partition already mounted? - cyg_mtab_entry *m = cyg_mtab; - while (m != &cyg_mtab_end) { - if (m->valid - && (0==strcmp(m->fsname,"yaffs")) - && (((yaffs_Device *)m->data)->genericDevice == part) ) { - ER(EBUSY); - /* TODO: Set up a refcount to allow a yaffs/nand fs - * to be mounted multiple times. In that case, - * re-use the existing yaffs device struct. */ - } - m++; - } - - // Option handling. Defaults come from CDL. - int o_nReserved = CYGNUM_FS_YAFFS_RESERVED_BLOCKS; - int o_nShortOpCaches = CYGNUM_FS_YAFFS_SHORTOP_CACHES; - int o_skipCheckpointRead = 0; - -#if defined(CYGSEM_FS_YAFFS_COMPATIBILITY_ECOSPRO) && (CYGSEM_FS_YAFFS_COMPATIBILITY_ECOSPRO == 1) - if (mte->options) { - int t; - char buf[10]; - // reserved=<int>: Number of blocks to reserve (minimum 2) - if (0==cyg_fs_get_option(mte->options, "reserved", buf, sizeof buf)) { - t = atoi(buf); - if (t>=2 && t <= (part->last - part->first)) - o_nReserved = t; - else - TOUT(("eyaffs_mount: ignoring invalid value `reserved=%d'", t)); - } - // caches=<int>: Number of cache entries to use (10-20 recommended) - if (0==cyg_fs_get_option(mte->options, "caches", buf, sizeof buf)) { - t = atoi(buf); - if (t>=0) - o_nShortOpCaches = t; - else - TOUT(("eyaffs_mount: ignoring invalid value `caches=%d'", t)); - } - // skip-checkpoint-read: Ignore the checkpoint restore and instead - // do a full filesystem scan. - if (0==cyg_fs_get_option(mte->options, "skip-checkpoint-read", buf, sizeof buf)) { - o_skipCheckpointRead = 1; - } - // TODO: readonly option, runtime and/or CDL? - } -#endif - -#ifdef CYGPKG_INFRA_DEBUG - // Best-efforts sanity check that there's enough heap. - // The rule of thumb is 2 bytes per page. - struct mallinfo mi = mallinfo(); - unsigned want = ( 1 << (nand->block_page_bits + 1) ) * (1 + part->last - part->first); - if ( mi.fordblks < want) { - TOUT(("eyaffs_mount: warning: arena reports %u bytes free; %u recommended for this device\n", mi.fordblks, want)); - } -#endif // CYGSEM_FS_YAFFS_COMPATIBILITY - - yaffs_Device *y = YMALLOC(sizeof(yaffs_Device)); // ^^^^^^^^^^^^^^^^ - if (!y) EG(ENOMEM); - memset(y, 0, sizeof(yaffs_Device)); - y->name = mte->devname; - y->genericDevice = (void*) part; - - y->nDataBytesPerChunk = - y->totalBytesPerChunk = CYG_NAND_BYTES_PER_PAGE(nand); - y->inbandTags = 0; - - y->nChunksPerBlock = CYG_NAND_PAGES_PER_BLOCK(nand); - y->nReservedBlocks = o_nReserved; - y->startBlock = 0; - y->endBlock = CYG_NAND_PARTITION_NBLOCKS(part)-1; - y->useNANDECC = 1; - y->nShortOpCaches = o_nShortOpCaches; - - if (CYG_NAND_BYTES_PER_PAGE(nand) == 512) { -#ifdef CYGSEM_FS_YAFFS_SMALLPAGE_MODE_YAFFS1 - y->isYaffs2 = 0; - if (CYG_NAND_APPSPARE_PER_PAGE(nand) < PACKEDTAGS1_OOBSIZE) { - NAND_ERROR(nand, - "Device has %d spare per page but YAFFS1 needs %d\n", - CYG_NAND_APPSPARE_PER_PAGE(nand), PACKEDTAGS1_OOBSIZE); - EG(EINVAL); - } -#else // CYGSEM_FS_YAFFS_SMALLPAGE_MODE_YAFFS2 - y->isYaffs2 = 1; - // 512-byte page devices normally have 8-byte spare areas. - // This isn't big enough for YAFFS2 tags, which need 25. - y->inbandTags = 1; -#endif - } else { - y->isYaffs2 = 1; - if (CYG_NAND_APPSPARE_PER_PAGE(nand) < PACKEDTAGS2_OOBSIZE(y)) { - NAND_ERROR(nand, - "Device has %d spare per page but YAFFS2 needs %u\n", - CYG_NAND_APPSPARE_PER_PAGE(nand), PACKEDTAGS2_OOBSIZE(y)); - EG(EINVAL); - } - } - -#ifdef CYGSEM_FS_YAFFS_OMIT_YAFFS2_CODE - if (y->isYaffs2) { - NAND_ERROR(nand, "Device is set to run with yaffs2 code, which is compiled out.\n"); - EG(ENODEV); - } -#endif - - y->eraseBlockInNAND = eyaffs_eraseBlockInNAND; - y->initialiseNAND = eyaffs_initialiseNAND; - y->deinitialiseNAND = eyaffs_deinitialiseNAND; - - y->writeChunkWithTagsToNAND = eyaffs_writeChunkWithTagsToNAND; - y->readChunkWithTagsFromNAND = eyaffs_readChunkWithTagsFromNAND; - y->markNANDBlockBad = eyaffs_markNANDBlockBad; - y->queryNANDBlock = eyaffs_queryNANDBlock; - - y->isMounted = 0; - y->removeObjectCallback = eyaffs_diriter_objremove_callback; - - if (o_skipCheckpointRead) { - NAND_CHATTER(1, nand, "mounting with skip-checkpoint-read\n"); - y->skipCheckpointRead = 1; - } - - int yerr = yaffs_GutsInitialise(y); - if (yerr == YAFFS_FAIL) { - NAND_CHATTER(1, nand, "yaffs_GutsInitialise failed!\n"); - EG(EIO); - } - - yaffs_Object * root = yaffs_Root(y); - mte->root = (cyg_dir) root; - mte->data = (CYG_ADDRWORD) y; - CYG_ASSERT(_err == ENOERR, "Unhandled error in initialisation"); - // At this point we could use the device struct's devList to link it - // into a global devList. (We don't currently need to, so won't.) - return ENOERR; -err_exit: - if (y) YFREE(y); - return _err; -} - -#if defined(CYGSEM_FS_YAFFS_COMPATIBILITY_ECOSPRO) && (CYGSEM_FS_YAFFS_COMPATIBILITY_ECOSPRO == 1) -static int eyaffs_umount ( cyg_mtab_entry *mte, cyg_bool force ) -#else -static int eyaffs_umount ( cyg_mtab_entry *mte ) -#endif -{ - yaffs_Device *y = (yaffs_Device*) mte->data; - - yaffs_FlushEntireDeviceCache(y); - yaffs_CheckpointSave(y); - yaffs_Deinitialise(y); - - YFREE(y); - return ENOERR; -} - -static int eyaffs_open ( cyg_mtab_entry *mte, cyg_dir dir, const char *name, - int mode, cyg_file *file ) -{ - int _err; - ey_dirsearch ds; - yaffs_Object *node = 0; - - // 'mode' is the open options (flags), not the permissions. - // (eCos doesn't support file perms.) - - // fileio gives us either the root, or the current wd, to start at - init_dirsearch(&ds, (yaffs_Object*) dir, name); - _err = eyaffs_find(&ds); - - if (_err == ENOENT) { - // It's not there. Are we creat()ing? - if (ds.last && (mode & O_CREAT) ) { - // A trailing slash implies directory, which makes no sense here - if (ds.name[ds.namelen] == '/') return EISDIR; - CYG_ASSERT(ds.name[ds.namelen]==0, "Length fencepost failed"); - node = yaffs_MknodFile(ds.dir, ds.name, FILE_FIXED_PERMS, FIXED_UID, FIXED_GID); - if (!node || (node==YAFFS_FAIL)) return ENOMEM; - _err = ENOERR; - } - // else we return ENOENT - } else if (_err == ENOERR) { - // The node exists. If the O_CREAT and O_EXCL bits are set, we - // must fail the open. - if( (mode & (O_CREAT|O_EXCL)) == (O_CREAT|O_EXCL) ) - _err = EEXIST; - else node = ds.node; - } - - if( _err != ENOERR ) return _err; - - if (yaffs_GetObjectType(node) == DT_LNK) { - // TODO: symlink support - return ENOSYS; - } - - if(yaffs_GetObjectType(node) == DT_DIR) return EISDIR; - - // Could check perms here (and on the dir tree too) - - if( mode & O_TRUNC ) - YER(yaffs_ResizeFile(node, 0)); - - node->inUse++; - - file->f_flag |= mode & CYG_FILE_MODE_MASK; - file->f_type = CYG_FILE_TYPE_FILE; - file->f_ops = &eyaffs_fileops; - file->f_offset = (mode & O_APPEND) ? yaffs_GetObjectFileLength(node) : 0; - file->f_data = (CYG_ADDRWORD) node; - file->f_xops = 0; - - return ENOERR; -} - -static int eyaffs_unlink ( cyg_mtab_entry *mte, cyg_dir dir, const char *name ) -{ - int _err; - ey_dirsearch ds; - - init_dirsearch(&ds, (yaffs_Object*) dir, name); - _err = eyaffs_find(&ds); - if (_err != ENOERR) return _err; - - if(yaffs_GetObjectType(ds.node) == DT_DIR) return EISDIR; - if (ds.name[ds.namelen] == '/') return EISDIR; // cannot unlink dirs - YER(yaffs_Unlink(ds.dir,ds.name)); // this appears to DTRT wrt 0-linked still-open files - return ENOERR; -} - -static int eyaffs_mkdir ( cyg_mtab_entry *mte, cyg_dir dir, const char *name ) -{ - ey_dirsearch ds; - - init_dirsearch(&ds, (yaffs_Object*) dir, name); - int _err = eyaffs_find(&ds); - if (_err == ENOENT) { - if (ds.last) { - char dirname[ds.namelen+1]; - memcpy(dirname, ds.name, ds.namelen); - dirname[ds.namelen] = 0; - // OK, create it! - yaffs_Object * node = yaffs_MknodDirectory(ds.dir, dirname, DIRECTORY_FIXED_PERMS, FIXED_UID, FIXED_GID); - _err = (node == NULL) ? EIO : ENOERR; - } else { - // Intermediate directory doesn't exist - ENOENT - } - } else { - // something there already - if (_err == ENOERR) _err = EEXIST; - } - return _err; -} - -static int eyaffs_rmdir ( cyg_mtab_entry *mte, cyg_dir dir, const char *name ) -{ - ey_dirsearch ds; - - init_dirsearch(&ds, (yaffs_Object*) dir, name); - int _err = eyaffs_find(&ds); - if (_err != ENOERR) return _err; - - if(yaffs_GetObjectType(ds.node) != DT_DIR) return ENOTDIR; - if (0==strcmp(ds.name,".")) return EINVAL; - if (0==ds.namelen) return EINVAL; - - char dirname[ds.namelen+1]; - memcpy(dirname, ds.name, ds.namelen); - dirname[ds.namelen] = 0; - - if (YAFFS_FAIL == yaffs_Unlink(ds.dir,dirname)) return ENOTEMPTY; - return ENOERR; -} - -static int eyaffs_rename ( cyg_mtab_entry *mte, cyg_dir dir1, const char *name1, - cyg_dir dir2, const char *name2 ) -{ - ey_dirsearch ds1, ds2; - - init_dirsearch(&ds1, (yaffs_Object*) dir1, name1); - int _err = eyaffs_find(&ds1); - if (_err != ENOERR) return _err; - - init_dirsearch(&ds2, (yaffs_Object*) dir2, name2); - _err = eyaffs_find(&ds2); - - if (ds2.last && _err == ENOENT) - ds2.node = NULL, _err = ENOERR; // through-rename - - if (_err != ENOERR) return _err; - - if (ds1.node == ds2.node) return ENOERR; // identity op - - if (ds2.node) { - int type1 = yaffs_GetObjectType(ds1.node), - type2 = yaffs_GetObjectType(ds2.node); - if ( (type1 != DT_DIR) && (type2 == DT_DIR) ) - return EISDIR; - if ( (type1 == DT_DIR) && (type2 != DT_DIR) ) - return ENOTDIR; - // YAFFS will delete the target - } - // Alas, if this is a directory rename, there may be trailing / involved, - // so we have to strip them. - char xname1[ds1.namelen+1]; - memcpy(xname1, ds1.name, ds1.namelen); - xname1[ds1.namelen] = 0; - char xname2[ds2.namelen+1]; - memcpy(xname2, ds2.name, ds2.namelen); - xname2[ds2.namelen] = 0; - - YER(yaffs_RenameObject(ds1.dir, xname1, ds2.dir, xname2)); - return ENOERR; -} - -static int eyaffs_link ( cyg_mtab_entry *mte, cyg_dir dir1, const char *name1, - cyg_dir dir2, const char *name2, int type ) -{ - ey_dirsearch ds1, ds2; - - // Only do hard links for now - if (type != CYG_FSLINK_HARD) return EINVAL; - - init_dirsearch(&ds1, (yaffs_Object*) dir1, name1); - int _err = eyaffs_find(&ds1); - if (_err != ENOERR) return _err; - - init_dirsearch(&ds2, (yaffs_Object*) dir2, name2); - _err = eyaffs_find(&ds2); - if (_err == ENOERR) return EEXIST; // Can't rename-over - - if (ds2.last && _err == ENOENT) - ds2.node = 0, _err = ENOERR; // link-through - - ER(_err); - - // Forbid hard links to directories - if (ds1.node->variantType == YAFFS_OBJECT_TYPE_DIRECTORY) - return EPERM; - - if (ds2.name[ds2.namelen] == '/') return EISDIR; // eh? makes no sense. - yaffs_Object * newnode = yaffs_Link(ds2.dir, ds2.name, ds1.node); - if (newnode) return ENOERR; - else return EIO; -} - -static int eyaffs_opendir( cyg_mtab_entry *mte, cyg_dir dir, const char *name, - cyg_file *file ) -{ - int _err; - ey_dirsearch ds; - - init_dirsearch(&ds, (yaffs_Object*) dir, name); - _err = eyaffs_find(&ds); - if (_err != ENOERR) return _err; - - if(yaffs_GetObjectType(ds.node) != DT_DIR) return ENOTDIR; - - eyaffs_diriter *diriter = YMALLOC(sizeof(eyaffs_diriter)); - if (!diriter) return ENOMEM; - - ds.node->inUse++; - - YINIT_LIST_HEAD(&diriter->iterlist); - diriter->node = ds.node; - - if (!eyaffs_all_diriters.next) YINIT_LIST_HEAD(&eyaffs_all_diriters); - ylist_add(&diriter->iterlist, &eyaffs_all_diriters); - eyaffs_diriter_rewind(diriter); - - file->f_type = CYG_FILE_TYPE_FILE; - file->f_ops = &eyaffs_dirops; - file->f_offset = 0; - file->f_data = (CYG_ADDRWORD) diriter; - file->f_xops = 0; - return ENOERR; -} - -static int eyaffs_chdir ( cyg_mtab_entry *mte, cyg_dir xdir, const char *name, - cyg_dir *dir_out ) -{ - yaffs_Object *dir = (yaffs_Object*) xdir; - if (dir_out) { - ey_dirsearch ds; - init_dirsearch(&ds, dir, name); - int _err = eyaffs_find(&ds); - if (_err != ENOERR) return _err; - if (yaffs_GetObjectType(ds.node) != DT_DIR) - return ENOTDIR; - *dir_out = (cyg_dir)ds.node; - } else { - // the "dec-refcount" case: nothing to do - } - return ENOERR; -} - -static int eyaffs_stat ( cyg_mtab_entry *mte, cyg_dir dir, const char *name, - struct stat *buf) -{ - int _err; - ey_dirsearch ds; - - init_dirsearch(&ds, (yaffs_Object*) dir, name); - _err = eyaffs_find(&ds); - if (_err != ENOERR) return _err; - - return eyaffs_stat_object(ds.node, buf); -} - -static int eyaffs_stat_object(yaffs_Object *node, struct stat *buf) -{ - switch (yaffs_GetObjectType(node)) { - case DT_REG: - buf->st_mode = __stat_mode_REG; - buf->st_size = node->variant.fileVariant.fileSize; - break; - case DT_DIR: - buf->st_mode = __stat_mode_DIR; - buf->st_size = 0; - break; - default: - return ENOSYS; // Don't support anything else yet - } - - buf->st_mode |= node->yst_mode &~ S_IFMT; - - buf->st_ino = node->objectId; - buf->st_dev = 0; - buf->st_nlink = eyaffs_count_links(node); - buf->st_uid = node->yst_uid; - buf->st_gid = node->yst_gid; - - buf->st_atime = node->yst_atime; - buf->st_mtime = node->yst_mtime; - buf->st_ctime = node->yst_ctime; - - return ENOERR; -} - -static int eyaffs_getinfo( cyg_mtab_entry *mte, cyg_dir dir, const char *name, - int key, void *buf, int len ) -{ - int _err; - ey_dirsearch ds; - yaffs_Device *y = (yaffs_Device*) mte->data; - - switch(key) { - case FS_INFO_CONF: - break; - -#ifdef CYGSEM_FILEIO_INFO_DISK_USAGE - case FS_INFO_DISK_USAGE: - { - struct cyg_fs_disk_usage *usage = (struct cyg_fs_disk_usage *) buf; - CYG_CHECK_DATA_PTR(buf, "getinfo buf"); - if (len < sizeof(struct cyg_fs_disk_usage)) return EINVAL; - usage->total_blocks = y->endBlock - y->startBlock + 1; - usage->free_blocks = y->nErasedBlocks; - usage->block_size = y->nDataBytesPerChunk * y->nChunksPerBlock; - return ENOERR; - } -#else - (void)y; -#endif - - case FS_INFO_GETCWD: - // yaffs doesn't provide anything special, we'd only end up duplicating the fallback ".." method. - case FS_INFO_ATTRIB: // not supported -#ifdef FS_INFO_CALLBACK - case FS_INFO_CALLBACK: // not supported -#endif - default: - return ENOSYS; - } - - init_dirsearch(&ds, (yaffs_Object*) dir, name); - _err = eyaffs_find(&ds); - if (_err != ENOERR) return _err; - - switch(key) { - case FS_INFO_CONF: - if (len < sizeof (struct cyg_pathconf_info)) return EINVAL; - return eyaffs_pathconf(ds.node, (struct cyg_pathconf_info *) buf); - -#ifdef FS_INFO_MBCS_TRANSLATE - case FS_INFO_MBCS_TRANSLATE: -#endif - default: - return ENOSYS; - } -} - -static int eyaffs_do_sync_fs(yaffs_Device * y) -{ - yaffs_FlushEntireDeviceCache(y); - // TODO: If there were a convenient way to enumerate all the open - // files in a filesystem, we could fsync them all here. - // This might involve code similar to cyg_fd_filesys_close(). - yaffs_CheckpointSave(y); - return ENOERR; -} - -static int eyaffs_setinfo( cyg_mtab_entry *mte, cyg_dir dir, const char *name, - int key, void *buf, int len ) -{ - switch (key) { - case FS_INFO_SYNC: - return eyaffs_do_sync_fs( (yaffs_Device*) mte->data ); - case FS_INFO_ATTRIB: // not supported -#ifdef FS_INFO_CALLBACK - case FS_INFO_CALLBACK: // not supported -#endif -#ifdef FS_INFO_SECURE_ERASE - case FS_INFO_SECURE_ERASE: -#endif -#ifdef FS_INFO_MBCS_TRANSLATE - case FS_INFO_MBCS_TRANSLATE: -#endif - return ENOSYS; - } - return EINVAL; -} - -FSTAB_ENTRY(eyaffs_fste, "yaffs", 0, CYG_SYNCMODE_FILE_FILESYSTEM|CYG_SYNCMODE_IO_FILESYSTEM, - /* N.B. If you get a build failure here (initialization - from incompatible pointer type), it might be because you're - using this GPL-licensed package on eCosPro and need to set - CYGSEM_FS_YAFFS_COMPATIBILITY_ECOSPRO. - */ - eyaffs_mount, - eyaffs_umount, - eyaffs_open, - eyaffs_unlink, - eyaffs_mkdir, - eyaffs_rmdir, - eyaffs_rename, - eyaffs_link, - eyaffs_opendir, - eyaffs_chdir, - eyaffs_stat, - eyaffs_getinfo, - eyaffs_setinfo); - -// -----------------------------------------------------------------------
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/ecos-yaffs.h +++ /dev/null @@ -1,89 +0,0 @@ -#ifndef CYGONCE_FS_ECOS_YAFFS_H -#define CYGONCE_FS_ECOS_YAFFS_H -//============================================================================= -// -// ecos-yaffs.h -// -// Options for the eCos interface to the YAFFS filesystem -// -//============================================================================= -// ####ECOSGPLCOPYRIGHTBEGIN#### -// ------------------------------------------- -// This file is part of eCos, the Embedded Configurable Operating System. -// Copyright (C) 2009 eCosCentric Limited. -// -// eCos is free software; you can redistribute it and/or modify it under -// the terms of the GNU General Public License as published by the Free -// Software Foundation; either version 2 or (at your option) any later -// version. -// -// eCos is distributed in the hope that it will be useful, but WITHOUT -// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -// for more details. -// -// You should have received a copy of the GNU General Public License -// along with eCos; if not, write to the Free Software Foundation, Inc., -// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -// -// As a special exception, if other files instantiate templates or use -// macros or inline functions from this file, or you compile this file -// and link it with other works to produce a work based on this file, -// this file does not by itself cause the resulting work to be covered by -// the GNU General Public License. However the source code for this file -// must still be made available in accordance with section (3) of the GNU -// General Public License v2. -// -// This exception does not invalidate any other reasons why a work based -// on this file might be covered by the GNU General Public License. -// ------------------------------------------- -// ####ECOSGPLCOPYRIGHTEND#### -//============================================================================= -//#####DESCRIPTIONBEGIN#### -// -// Author(s): wry -// Date: 2009-05-05 -// -//####DESCRIPTIONEND#### -//============================================================================= - -#include <pkgconf/system.h> -#include <pkgconf/fs_yaffs.h> - -/* Options from yaffs moduleconfig.h */ -#define CONFIG_YAFFS_FS - -#ifdef CYGSEM_FS_YAFFS_SMALLPAGE_MODE_YAFFS1 -# define CONFIG_YAFFS_YAFFS1 -# define CONFIG_YAFFS_YAFFS2 -#else // CYGSEM_FS_YAFFS_SMALLPAGE_MODE_YAFFS2 -# define CONFIG_YAFFS_NO_YAFFS1 -# define CONFIG_YAFFS_YAFFS2 -#endif - -/* eCos does not currently supply DT_REG &c. and ATTR_MODE &c., so we'll - * use YAFFS's: */ -#define CONFIG_YAFFS_PROVIDE_DEFS - -/* Our NAND layer does ECC, so we won't use YAFFS's - but we do need - * to use its internal ECC on the tags */ -//#define YAFFS_IGNORE_TAGS_ECC -//#define CONFIG_YAFFS_DOES_ECC -//#define CONFIG_YAFFS_ECC_WRONG_ORDER - -/* Do not test whether chunks are erased before writing to them */ -#define CONFIG_YAFFS_DISABLE_CHUNK_ERASED_CHECK - -/* Cache short names, taking more RAM, but faster look-ups */ -#ifdef CYGSEM_FS_YAFFS_CACHE_SHORT_NAMES -#define CONFIG_YAFFS_SHORT_NAMES_IN_RAM -#endif - -/* The count of blocks to reserve for checkpointing */ -#define CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS 10 - -/* Use older-style on-NAND data format with pageStatus byte? - * This probably requires work in the NAND layer in order to support. */ -//#define CONFIG_YAFFS_9BYTE_TAGS - -#endif /* CYGONCE_FS_ECOS_YAFFS_H */
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/ecos-yport.h +++ /dev/null @@ -1,135 +0,0 @@ -#ifndef CYGONCE_FS_ECOS_YPORT_H -#define CYGONCE_FS_ECOS_YPORT_H -//============================================================================= -// -// ecos-yport.h -// -// eCos porting layer for YAFFS -// -//============================================================================= -// ####ECOSGPLCOPYRIGHTBEGIN#### -// ------------------------------------------- -// This file is part of eCos, the Embedded Configurable Operating System. -// Copyright (C) 2009 eCosCentric Limited. -// -// eCos is free software; you can redistribute it and/or modify it under -// the terms of the GNU General Public License as published by the Free -// Software Foundation; either version 2 or (at your option) any later -// version. -// -// eCos is distributed in the hope that it will be useful, but WITHOUT -// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -// for more details. -// -// You should have received a copy of the GNU General Public License -// along with eCos; if not, write to the Free Software Foundation, Inc., -// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -// -// As a special exception, if other files instantiate templates or use -// macros or inline functions from this file, or you compile this file -// and link it with other works to produce a work based on this file, -// this file does not by itself cause the resulting work to be covered by -// the GNU General Public License. However the source code for this file -// must still be made available in accordance with section (3) of the GNU -// General Public License v2. -// -// This exception does not invalidate any other reasons why a work based -// on this file might be covered by the GNU General Public License. -// ------------------------------------------- -// ####ECOSGPLCOPYRIGHTEND#### -//============================================================================= -//#####DESCRIPTIONBEGIN#### -// -// Author(s): wry -// Date: 2009-05-05 -// -//####DESCRIPTIONEND#### -//============================================================================= - -#include "ecos-yaffs.h" - -#include "devextras.h" - -#include <stdlib.h> -#include <stdio.h> -#include <string.h> -#include <ctype.h> - -#include <cyg/infra/cyg_ass.h> -#include <cyg/infra/diag.h> -#include <cyg/infra/cyg_type.h> - -#define YCHAR char -#define YUCHAR unsigned char -#define _Y(x) x -#define yaffs_strcat(a,b) strcat(a,b) -#define yaffs_strcpy(a,b) strcpy(a,b) -#define yaffs_strncpy(a,b,c) strncpy(a,b,c) -#define yaffs_strncmp(a,b,c) strncmp(a,b,c) -#define yaffs_strlen(s) strlen(s) -#define yaffs_sprintf sprintf -#define yaffs_toupper(a) toupper(a) - -#define YAFFS_PATH_DIVIDERS "/" - -#define Y_INLINE inline - -#define YMALLOC(x) malloc(x) -#define YFREE(x) free(x) -#define YMALLOC_ALT(x) malloc(x) -#define YFREE_ALT(x) free(x) - -#define YMALLOC_DMA(x) YMALLOC(x) - -#ifdef CYGFUN_KERNEL_API_C -#include <cyg/kernel/kapi.h> -#define YYIELD() do { cyg_thread_yield(); } while(0) -#else -#define YYIELD() do {} while(0) -#endif - - -//#define YINFO(s) YPRINTF(( __FILE__ " %d %s\n",__LINE__,s)) -//#define YALERT(s) YINFO(s) -#define YBUG() do { cyg_assert_fail(__PRETTY_FUNCTION__, __FILE__, __LINE__, "==>> yaffs bug detected"); } while(0) - -#define TENDSTR "\n" -#define TSTR(x) x -#define TCONT(x) x -#ifdef CYGSEM_FS_YAFFS_TRACEFN -externC int CYGSEM_FS_YAFFS_TRACEFN (const char *fmt, ...) CYGBLD_ATTRIB_PRINTF_FORMAT(1,2); -#define TOUT(p) CYGSEM_FS_YAFFS_TRACEFN p -#else -static inline int _yaffs_trace_ignore (const char *fmt, ...) CYGBLD_ATTRIB_PRINTF_FORMAT(1,2); -static inline int _yaffs_trace_ignore (const char *fmt, ...) { return 0; } -#define TOUT(p) _yaffs_trace_ignore p -#endif - - -#define YAFFS_LOSTNFOUND_NAME "lost+found" -#define YAFFS_LOSTNFOUND_PREFIX "obj" -//#define YPRINTF(x) printf x - -#ifdef CYGPKG_LIBC_TIME -#define Y_CURRENT_TIME time(NULL) -#else -#define Y_CURRENT_TIME ((time_t)-1) -#endif -#define Y_TIME_CONVERT(x) (x) - -// eCos defines mode bits differently to POSIX. -#define YAFFS_ROOT_MODE ( S_IRUSR | S_IWUSR | S_IXUSR | \ - S_IRGRP | S_IXGRP | \ - S_IROTH | S_IXOTH ) -#define YAFFS_LOSTNFOUND_MODE YAFFS_ROOT_MODE - -#define yaffs_SumCompare(x,y) ((x) == (y)) -#define yaffs_strcmp(a,b) strcmp(a,b) - -typedef off_t loff_t; /* This will break and should probably be removed - if/when we add 64-bit file support generally. */ - -#define yaffs_qsort qsort /* provided by eCos stdlib */ - -#endif /* CYGONCE_FS_ECOS_YPORT_H */
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_checkptrw.c +++ /dev/null @@ -1,405 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -const char *yaffs_checkptrw_c_version = - "$Id$"; - - -#include "yaffs_checkptrw.h" -#include "yaffs_getblockinfo.h" - -static int yaffs_CheckpointSpaceOk(yaffs_Device *dev) -{ - int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks; - - T(YAFFS_TRACE_CHECKPOINT, - (TSTR("checkpt blocks available = %d" TENDSTR), - blocksAvailable)); - - return (blocksAvailable <= 0) ? 0 : 1; -} - - -static int yaffs_CheckpointErase(yaffs_Device *dev) -{ - int i; - - if (!dev->eraseBlockInNAND) - return 0; - T(YAFFS_TRACE_CHECKPOINT, (TSTR("checking blocks %d to %d"TENDSTR), - dev->internalStartBlock, dev->internalEndBlock)); - - for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); - if (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT) { - T(YAFFS_TRACE_CHECKPOINT, (TSTR("erasing checkpt block %d"TENDSTR), i)); - - dev->nBlockErasures++; - - if (dev->eraseBlockInNAND(dev, i - dev->blockOffset /* realign */)) { - bi->blockState = YAFFS_BLOCK_STATE_EMPTY; - dev->nErasedBlocks++; - dev->nFreeChunks += dev->nChunksPerBlock; - } else { - dev->markNANDBlockBad(dev, i); - bi->blockState = YAFFS_BLOCK_STATE_DEAD; - } - } - } - - dev->blocksInCheckpoint = 0; - - return 1; -} - - -static void yaffs_CheckpointFindNextErasedBlock(yaffs_Device *dev) -{ - int i; - int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks; - T(YAFFS_TRACE_CHECKPOINT, - (TSTR("allocating checkpt block: erased %d reserved %d avail %d next %d "TENDSTR), - dev->nErasedBlocks, dev->nReservedBlocks, blocksAvailable, dev->checkpointNextBlock)); - - if (dev->checkpointNextBlock >= 0 && - dev->checkpointNextBlock <= dev->internalEndBlock && - blocksAvailable > 0) { - - for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) { - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); - if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) { - dev->checkpointNextBlock = i + 1; - dev->checkpointCurrentBlock = i; - T(YAFFS_TRACE_CHECKPOINT, (TSTR("allocating checkpt block %d"TENDSTR), i)); - return; - } - } - } - T(YAFFS_TRACE_CHECKPOINT, (TSTR("out of checkpt blocks"TENDSTR))); - - dev->checkpointNextBlock = -1; - dev->checkpointCurrentBlock = -1; -} - -static void yaffs_CheckpointFindNextCheckpointBlock(yaffs_Device *dev) -{ - int i; - yaffs_ExtendedTags tags; - - T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: start: blocks %d next %d" TENDSTR), - dev->blocksInCheckpoint, dev->checkpointNextBlock)); - - if (dev->blocksInCheckpoint < dev->checkpointMaxBlocks) - for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) { - int chunk = i * dev->nChunksPerBlock; - int realignedChunk = chunk - dev->chunkOffset; - - dev->readChunkWithTagsFromNAND(dev, realignedChunk, - NULL, &tags); - T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR), - i, tags.objectId, tags.sequenceNumber, tags.eccResult)); - - if (tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) { - /* Right kind of block */ - dev->checkpointNextBlock = tags.objectId; - dev->checkpointCurrentBlock = i; - dev->checkpointBlockList[dev->blocksInCheckpoint] = i; - dev->blocksInCheckpoint++; - T(YAFFS_TRACE_CHECKPOINT, (TSTR("found checkpt block %d"TENDSTR), i)); - return; - } - } - - T(YAFFS_TRACE_CHECKPOINT, (TSTR("found no more checkpt blocks"TENDSTR))); - - dev->checkpointNextBlock = -1; - dev->checkpointCurrentBlock = -1; -} - - -int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting) -{ - - - dev->checkpointOpenForWrite = forWriting; - - /* Got the functions we need? */ - if (!dev->writeChunkWithTagsToNAND || - !dev->readChunkWithTagsFromNAND || - !dev->eraseBlockInNAND || - !dev->markNANDBlockBad) - return 0; - - if (forWriting && !yaffs_CheckpointSpaceOk(dev)) - return 0; - - if (!dev->checkpointBuffer) - dev->checkpointBuffer = YMALLOC_DMA(dev->totalBytesPerChunk); - if (!dev->checkpointBuffer) - return 0; - - - dev->checkpointPageSequence = 0; - dev->checkpointByteCount = 0; - dev->checkpointSum = 0; - dev->checkpointXor = 0; - dev->checkpointCurrentBlock = -1; - dev->checkpointCurrentChunk = -1; - dev->checkpointNextBlock = dev->internalStartBlock; - - /* Erase all the blocks in the checkpoint area */ - if (forWriting) { - memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk); - dev->checkpointByteOffset = 0; - return yaffs_CheckpointErase(dev); - } else { - int i; - /* Set to a value that will kick off a read */ - dev->checkpointByteOffset = dev->nDataBytesPerChunk; - /* A checkpoint block list of 1 checkpoint block per 16 block is (hopefully) - * going to be way more than we need */ - dev->blocksInCheckpoint = 0; - dev->checkpointMaxBlocks = (dev->internalEndBlock - dev->internalStartBlock)/16 + 2; - dev->checkpointBlockList = YMALLOC(sizeof(int) * dev->checkpointMaxBlocks); - if(!dev->checkpointBlockList) - return 0; - - for (i = 0; i < dev->checkpointMaxBlocks; i++) - dev->checkpointBlockList[i] = -1; - } - - return 1; -} - -int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum) -{ - __u32 compositeSum; - compositeSum = (dev->checkpointSum << 8) | (dev->checkpointXor & 0xFF); - *sum = compositeSum; - return 1; -} - -static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev) -{ - int chunk; - int realignedChunk; - - yaffs_ExtendedTags tags; - - if (dev->checkpointCurrentBlock < 0) { - yaffs_CheckpointFindNextErasedBlock(dev); - dev->checkpointCurrentChunk = 0; - } - - if (dev->checkpointCurrentBlock < 0) - return 0; - - tags.chunkDeleted = 0; - tags.objectId = dev->checkpointNextBlock; /* Hint to next place to look */ - tags.chunkId = dev->checkpointPageSequence + 1; - tags.sequenceNumber = YAFFS_SEQUENCE_CHECKPOINT_DATA; - tags.byteCount = dev->nDataBytesPerChunk; - if (dev->checkpointCurrentChunk == 0) { - /* First chunk we write for the block? Set block state to - checkpoint */ - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointCurrentBlock); - bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT; - dev->blocksInCheckpoint++; - } - - chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + dev->checkpointCurrentChunk; - - - T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR), - chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk, tags.objectId, tags.chunkId)); - - realignedChunk = chunk - dev->chunkOffset; - - dev->nPageWrites++; - - dev->writeChunkWithTagsToNAND(dev, realignedChunk, - dev->checkpointBuffer, &tags); - dev->checkpointByteOffset = 0; - dev->checkpointPageSequence++; - dev->checkpointCurrentChunk++; - if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock) { - dev->checkpointCurrentChunk = 0; - dev->checkpointCurrentBlock = -1; - } - memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk); - - return 1; -} - - -int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes) -{ - int i = 0; - int ok = 1; - - - __u8 * dataBytes = (__u8 *)data; - - - - if (!dev->checkpointBuffer) - return 0; - - if (!dev->checkpointOpenForWrite) - return -1; - - while (i < nBytes && ok) { - dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes; - dev->checkpointSum += *dataBytes; - dev->checkpointXor ^= *dataBytes; - - dev->checkpointByteOffset++; - i++; - dataBytes++; - dev->checkpointByteCount++; - - - if (dev->checkpointByteOffset < 0 || - dev->checkpointByteOffset >= dev->nDataBytesPerChunk) - ok = yaffs_CheckpointFlushBuffer(dev); - } - - return i; -} - -int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes) -{ - int i = 0; - int ok = 1; - yaffs_ExtendedTags tags; - - - int chunk; - int realignedChunk; - - __u8 *dataBytes = (__u8 *)data; - - if (!dev->checkpointBuffer) - return 0; - - if (dev->checkpointOpenForWrite) - return -1; - - while (i < nBytes && ok) { - - - if (dev->checkpointByteOffset < 0 || - dev->checkpointByteOffset >= dev->nDataBytesPerChunk) { - - if (dev->checkpointCurrentBlock < 0) { - yaffs_CheckpointFindNextCheckpointBlock(dev); - dev->checkpointCurrentChunk = 0; - } - - if (dev->checkpointCurrentBlock < 0) - ok = 0; - else { - chunk = dev->checkpointCurrentBlock * - dev->nChunksPerBlock + - dev->checkpointCurrentChunk; - - realignedChunk = chunk - dev->chunkOffset; - - dev->nPageReads++; - - /* read in the next chunk */ - /* printf("read checkpoint page %d\n",dev->checkpointPage); */ - dev->readChunkWithTagsFromNAND(dev, - realignedChunk, - dev->checkpointBuffer, - &tags); - - if (tags.chunkId != (dev->checkpointPageSequence + 1) || - tags.eccResult > YAFFS_ECC_RESULT_FIXED || - tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA) - ok = 0; - - dev->checkpointByteOffset = 0; - dev->checkpointPageSequence++; - dev->checkpointCurrentChunk++; - - if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock) - dev->checkpointCurrentBlock = -1; - } - } - - if (ok) { - *dataBytes = dev->checkpointBuffer[dev->checkpointByteOffset]; - dev->checkpointSum += *dataBytes; - dev->checkpointXor ^= *dataBytes; - dev->checkpointByteOffset++; - i++; - dataBytes++; - dev->checkpointByteCount++; - } - } - - return i; -} - -int yaffs_CheckpointClose(yaffs_Device *dev) -{ - - if (dev->checkpointOpenForWrite) { - if (dev->checkpointByteOffset != 0) - yaffs_CheckpointFlushBuffer(dev); - } else if(dev->checkpointBlockList){ - int i; - for (i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++) { - int blk = dev->checkpointBlockList[i]; - yaffs_BlockInfo *bi = NULL; - if( dev->internalStartBlock <= blk && blk <= dev->internalEndBlock) - bi = yaffs_GetBlockInfo(dev, blk); - if (bi && bi->blockState == YAFFS_BLOCK_STATE_EMPTY) - bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT; - else { - /* Todo this looks odd... */ - } - } - YFREE(dev->checkpointBlockList); - dev->checkpointBlockList = NULL; - } - - dev->nFreeChunks -= dev->blocksInCheckpoint * dev->nChunksPerBlock; - dev->nErasedBlocks -= dev->blocksInCheckpoint; - - - T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint byte count %d" TENDSTR), - dev->checkpointByteCount)); - - if (dev->checkpointBuffer) { - /* free the buffer */ - YFREE(dev->checkpointBuffer); - dev->checkpointBuffer = NULL; - return 1; - } else - return 0; -} - -int yaffs_CheckpointInvalidateStream(yaffs_Device *dev) -{ - /* Erase the checkpoint data */ - - T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint invalidate of %d blocks"TENDSTR), - dev->blocksInCheckpoint)); - - return yaffs_CheckpointErase(dev); -} - - -
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_checkptrw.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -#ifndef __YAFFS_CHECKPTRW_H__ -#define __YAFFS_CHECKPTRW_H__ - -#include "yaffs_guts.h" - -int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting); - -int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes); - -int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes); - -int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum); - -int yaffs_CheckpointClose(yaffs_Device *dev); - -int yaffs_CheckpointInvalidateStream(yaffs_Device *dev); - - -#endif -
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_ecc.c +++ /dev/null @@ -1,326 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -/* - * This code implements the ECC algorithm used in SmartMedia. - * - * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. - * The two unused bit are set to 1. - * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC - * blocks are used on a 512-byte NAND page. - * - */ - -/* Table generated by gen-ecc.c - * Using a table means we do not have to calculate p1..p4 and p1'..p4' - * for each byte of data. These are instead provided in a table in bits7..2. - * Bit 0 of each entry indicates whether the entry has an odd or even parity, and therefore - * this bytes influence on the line parity. - */ - -const char *yaffs_ecc_c_version = - "$Id$"; - -#include "yportenv.h" - -#include "yaffs_ecc.h" - -static const unsigned char column_parity_table[] = { - 0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69, - 0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00, - 0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc, - 0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95, - 0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0, - 0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99, - 0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65, - 0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c, - 0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc, - 0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5, - 0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59, - 0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30, - 0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55, - 0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c, - 0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0, - 0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9, - 0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0, - 0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9, - 0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55, - 0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c, - 0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59, - 0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30, - 0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc, - 0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5, - 0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65, - 0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c, - 0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0, - 0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99, - 0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc, - 0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95, - 0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69, - 0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00, -}; - -/* Count the bits in an unsigned char or a U32 */ - -static int yaffs_CountBits(unsigned char x) -{ - int r = 0; - while (x) { - if (x & 1) - r++; - x >>= 1; - } - return r; -} - -static int yaffs_CountBits32(unsigned x) -{ - int r = 0; - while (x) { - if (x & 1) - r++; - x >>= 1; - } - return r; -} - -/* Calculate the ECC for a 256-byte block of data */ -void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc) -{ - unsigned int i; - - unsigned char col_parity = 0; - unsigned char line_parity = 0; - unsigned char line_parity_prime = 0; - unsigned char t; - unsigned char b; - - for (i = 0; i < 256; i++) { - b = column_parity_table[*data++]; - col_parity ^= b; - - if (b & 0x01) { /* odd number of bits in the byte */ - line_parity ^= i; - line_parity_prime ^= ~i; - } - } - - ecc[2] = (~col_parity) | 0x03; - - t = 0; - if (line_parity & 0x80) - t |= 0x80; - if (line_parity_prime & 0x80) - t |= 0x40; - if (line_parity & 0x40) - t |= 0x20; - if (line_parity_prime & 0x40) - t |= 0x10; - if (line_parity & 0x20) - t |= 0x08; - if (line_parity_prime & 0x20) - t |= 0x04; - if (line_parity & 0x10) - t |= 0x02; - if (line_parity_prime & 0x10) - t |= 0x01; - ecc[1] = ~t; - - t = 0; - if (line_parity & 0x08) - t |= 0x80; - if (line_parity_prime & 0x08) - t |= 0x40; - if (line_parity & 0x04) - t |= 0x20; - if (line_parity_prime & 0x04) - t |= 0x10; - if (line_parity & 0x02) - t |= 0x08; - if (line_parity_prime & 0x02) - t |= 0x04; - if (line_parity & 0x01) - t |= 0x02; - if (line_parity_prime & 0x01) - t |= 0x01; - ecc[0] = ~t; - -#ifdef CONFIG_YAFFS_ECC_WRONG_ORDER - /* Swap the bytes into the wrong order */ - t = ecc[0]; - ecc[0] = ecc[1]; - ecc[1] = t; -#endif -} - - -/* Correct the ECC on a 256 byte block of data */ - -int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc, - const unsigned char *test_ecc) -{ - unsigned char d0, d1, d2; /* deltas */ - - d0 = read_ecc[0] ^ test_ecc[0]; - d1 = read_ecc[1] ^ test_ecc[1]; - d2 = read_ecc[2] ^ test_ecc[2]; - - if ((d0 | d1 | d2) == 0) - return 0; /* no error */ - - if (((d0 ^ (d0 >> 1)) & 0x55) == 0x55 && - ((d1 ^ (d1 >> 1)) & 0x55) == 0x55 && - ((d2 ^ (d2 >> 1)) & 0x54) == 0x54) { - /* Single bit (recoverable) error in data */ - - unsigned byte; - unsigned bit; - -#ifdef CONFIG_YAFFS_ECC_WRONG_ORDER - /* swap the bytes to correct for the wrong order */ - unsigned char t; - - t = d0; - d0 = d1; - d1 = t; -#endif - - bit = byte = 0; - - if (d1 & 0x80) - byte |= 0x80; - if (d1 & 0x20) - byte |= 0x40; - if (d1 & 0x08) - byte |= 0x20; - if (d1 & 0x02) - byte |= 0x10; - if (d0 & 0x80) - byte |= 0x08; - if (d0 & 0x20) - byte |= 0x04; - if (d0 & 0x08) - byte |= 0x02; - if (d0 & 0x02) - byte |= 0x01; - - if (d2 & 0x80) - bit |= 0x04; - if (d2 & 0x20) - bit |= 0x02; - if (d2 & 0x08) - bit |= 0x01; - - data[byte] ^= (1 << bit); - - return 1; /* Corrected the error */ - } - - if ((yaffs_CountBits(d0) + - yaffs_CountBits(d1) + - yaffs_CountBits(d2)) == 1) { - /* Reccoverable error in ecc */ - - read_ecc[0] = test_ecc[0]; - read_ecc[1] = test_ecc[1]; - read_ecc[2] = test_ecc[2]; - - return 1; /* Corrected the error */ - } - - /* Unrecoverable error */ - - return -1; - -} - - -/* - * ECCxxxOther does ECC calcs on arbitrary n bytes of data - */ -void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes, - yaffs_ECCOther *eccOther) -{ - unsigned int i; - - unsigned char col_parity = 0; - unsigned line_parity = 0; - unsigned line_parity_prime = 0; - unsigned char b; - - for (i = 0; i < nBytes; i++) { - b = column_parity_table[*data++]; - col_parity ^= b; - - if (b & 0x01) { - /* odd number of bits in the byte */ - line_parity ^= i; - line_parity_prime ^= ~i; - } - - } - - eccOther->colParity = (col_parity >> 2) & 0x3f; - eccOther->lineParity = line_parity; - eccOther->lineParityPrime = line_parity_prime; -} - -int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, - yaffs_ECCOther *read_ecc, - const yaffs_ECCOther *test_ecc) -{ - unsigned char cDelta; /* column parity delta */ - unsigned lDelta; /* line parity delta */ - unsigned lDeltaPrime; /* line parity delta */ - unsigned bit; - - cDelta = read_ecc->colParity ^ test_ecc->colParity; - lDelta = read_ecc->lineParity ^ test_ecc->lineParity; - lDeltaPrime = read_ecc->lineParityPrime ^ test_ecc->lineParityPrime; - - if ((cDelta | lDelta | lDeltaPrime) == 0) - return 0; /* no error */ - - if (lDelta == ~lDeltaPrime && - (((cDelta ^ (cDelta >> 1)) & 0x15) == 0x15)) { - /* Single bit (recoverable) error in data */ - - bit = 0; - - if (cDelta & 0x20) - bit |= 0x04; - if (cDelta & 0x08) - bit |= 0x02; - if (cDelta & 0x02) - bit |= 0x01; - - if (lDelta >= nBytes) - return -1; - - data[lDelta] ^= (1 << bit); - - return 1; /* corrected */ - } - - if ((yaffs_CountBits32(lDelta) + yaffs_CountBits32(lDeltaPrime) + - yaffs_CountBits(cDelta)) == 1) { - /* Reccoverable error in ecc */ - - *read_ecc = *test_ecc; - return 1; /* corrected */ - } - - /* Unrecoverable error */ - - return -1; -}
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_ecc.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -/* - * This code implements the ECC algorithm used in SmartMedia. - * - * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. - * The two unused bit are set to 1. - * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC - * blocks are used on a 512-byte NAND page. - * - */ - -#ifndef __YAFFS_ECC_H__ -#define __YAFFS_ECC_H__ - -typedef struct { - unsigned char colParity; - unsigned lineParity; - unsigned lineParityPrime; -} yaffs_ECCOther; - -void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc); -int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc, - const unsigned char *test_ecc); - -void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes, - yaffs_ECCOther *ecc); -int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, - yaffs_ECCOther *read_ecc, - const yaffs_ECCOther *test_ecc); -#endif
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_getblockinfo.h +++ /dev/null @@ -1,34 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -#ifndef __YAFFS_GETBLOCKINFO_H__ -#define __YAFFS_GETBLOCKINFO_H__ - -#include "yaffs_guts.h" - -/* Function to manipulate block info */ -static Y_INLINE yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blk) -{ - if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR), - blk)); - YBUG(); - } - return &dev->blockInfo[blk - dev->internalStartBlock]; -} - -#endif
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_guts.c +++ /dev/null @@ -1,7799 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -const char *yaffs_guts_c_version = - "$Id$"; - -#include "yportenv.h" - -#include "yaffsinterface.h" -#include "yaffs_guts.h" -#include "yaffs_tagsvalidity.h" -#include "yaffs_getblockinfo.h" - -#include "yaffs_tagscompat.h" -#ifndef CONFIG_YAFFS_USE_OWN_SORT -#include "yaffs_qsort.h" -#endif -#include "yaffs_nand.h" - -#include "yaffs_checkptrw.h" - -#include "yaffs_nand.h" -#include "yaffs_packedtags2.h" - - -#define YAFFS_PASSIVE_GC_CHUNKS 2 - -#include "yaffs_ecc.h" - - -/* Robustification (if it ever comes about...) */ -/* eCos note: I have discussed the existence of robustification hooks - * with Charles Manning. He put them in as stubs, but then concluded - * that there was no value in filling them in. - * - wry, 2009-06-19 */ -static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND); -static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND, - int erasedOk); -static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, - const __u8 *data, - const yaffs_ExtendedTags *tags); -static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, - const yaffs_ExtendedTags *tags); - -/* Other local prototypes */ -static void yaffs_UpdateParent(yaffs_Object *obj); -static int yaffs_UnlinkObject(yaffs_Object *obj); -static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj); - -static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList); - -static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device *dev, - const __u8 *buffer, - yaffs_ExtendedTags *tags, - int useReserve); -static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode, - int chunkInNAND, int inScan); - -static yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number, - yaffs_ObjectType type); -static void yaffs_AddObjectToDirectory(yaffs_Object *directory, - yaffs_Object *obj); -static int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, - int force, int isShrink, int shadows); -static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj); -static int yaffs_CheckStructures(void); -static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level, - int chunkOffset, int *limit); -static int yaffs_DoGenericObjectDeletion(yaffs_Object *in); - -static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device *dev, int blockNo); - - -static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, - int chunkInNAND); - -static int yaffs_UnlinkWorker(yaffs_Object *obj); - -static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId, - int chunkInObject); - -static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve, - yaffs_BlockInfo **blockUsedPtr); - -static void yaffs_VerifyFreeChunks(yaffs_Device *dev); - -static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in); - -static void yaffs_VerifyDirectory(yaffs_Object *directory); -#ifdef YAFFS_PARANOID -static int yaffs_CheckFileSanity(yaffs_Object *in); -#else -#define yaffs_CheckFileSanity(in) -#endif - -static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in); -static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId); - -static void yaffs_InvalidateCheckpoint(yaffs_Device *dev); - -static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode, - yaffs_ExtendedTags *tags); - -static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, - unsigned pos); -static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev, - yaffs_FileStructure *fStruct, - __u32 chunkId); - -/* Function to calculate chunk and offset */ - -static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, int *chunkOut, - __u32 *offsetOut) -{ - int chunk; - __u32 offset; - - chunk = (__u32)(addr >> dev->chunkShift); - - if (dev->chunkDiv == 1) { - /* easy power of 2 case */ - offset = (__u32)(addr & dev->chunkMask); - } else { - /* Non power-of-2 case */ - - loff_t chunkBase; - - chunk /= dev->chunkDiv; - - chunkBase = ((loff_t)chunk) * dev->nDataBytesPerChunk; - offset = (__u32)(addr - chunkBase); - } - - *chunkOut = chunk; - *offsetOut = offset; -} - -/* Function to return the number of shifts for a power of 2 greater than or - * equal to the given number - * Note we don't try to cater for all possible numbers and this does not have to - * be hellishly efficient. - */ - -static __u32 ShiftsGE(__u32 x) -{ - int extraBits; - int nShifts; - - nShifts = extraBits = 0; - - while (x > 1) { - if (x & 1) - extraBits++; - x >>= 1; - nShifts++; - } - - if (extraBits) - nShifts++; - - return nShifts; -} - -/* Function to return the number of shifts to get a 1 in bit 0 - */ - -static __u32 Shifts(__u32 x) -{ - int nShifts; - - nShifts = 0; - - if (!x) - return 0; - - while (!(x&1)) { - x >>= 1; - nShifts++; - } - - return nShifts; -} - - - -/* - * Temporary buffer manipulations. - */ - -static int yaffs_InitialiseTempBuffers(yaffs_Device *dev) -{ - int i; - __u8 *buf = (__u8 *)1; - - memset(dev->tempBuffer, 0, sizeof(dev->tempBuffer)); - - for (i = 0; buf && i < YAFFS_N_TEMP_BUFFERS; i++) { - dev->tempBuffer[i].line = 0; /* not in use */ - dev->tempBuffer[i].buffer = buf = - YMALLOC_DMA(dev->totalBytesPerChunk); - } - - return buf ? YAFFS_OK : YAFFS_FAIL; -} - -__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo) -{ - int i, j; - - dev->tempInUse++; - if (dev->tempInUse > dev->maxTemp) - dev->maxTemp = dev->tempInUse; - - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { - if (dev->tempBuffer[i].line == 0) { - dev->tempBuffer[i].line = lineNo; - if ((i + 1) > dev->maxTemp) { - dev->maxTemp = i + 1; - for (j = 0; j <= i; j++) - dev->tempBuffer[j].maxLine = - dev->tempBuffer[j].line; - } - - return dev->tempBuffer[i].buffer; - } - } - - T(YAFFS_TRACE_BUFFERS, - (TSTR("Out of temp buffers at line %d, other held by lines:"), - lineNo)); - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) - T(YAFFS_TRACE_BUFFERS, (TSTR(" %d "), dev->tempBuffer[i].line)); - - T(YAFFS_TRACE_BUFFERS, (TSTR(" " TENDSTR))); - - /* - * If we got here then we have to allocate an unmanaged one - * This is not good. - */ - - dev->unmanagedTempAllocations++; - return YMALLOC(dev->nDataBytesPerChunk); - -} - -void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, - int lineNo) -{ - int i; - - dev->tempInUse--; - - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { - if (dev->tempBuffer[i].buffer == buffer) { - dev->tempBuffer[i].line = 0; - return; - } - } - - if (buffer) { - /* assume it is an unmanaged one. */ - T(YAFFS_TRACE_BUFFERS, - (TSTR("Releasing unmanaged temp buffer in line %d" TENDSTR), - lineNo)); - YFREE(buffer); - dev->unmanagedTempDeallocations++; - } - -} - -/* - * Determine if we have a managed buffer. - */ -int yaffs_IsManagedTempBuffer(yaffs_Device *dev, const __u8 *buffer) -{ - int i; - - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { - if (dev->tempBuffer[i].buffer == buffer) - return 1; - } - - for (i = 0; i < dev->nShortOpCaches; i++) { - if (dev->srCache[i].data == buffer) - return 1; - } - - if (buffer == dev->checkpointBuffer) - return 1; - - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: unmaged buffer detected.\n" TENDSTR))); - return 0; -} - - - -/* - * Chunk bitmap manipulations - */ - -static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device *dev, int blk) -{ - if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { - T(YAFFS_TRACE_ERROR, - (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR), - blk)); - YBUG(); - } - return dev->chunkBits + - (dev->chunkBitmapStride * (blk - dev->internalStartBlock)); -} - -static Y_INLINE void yaffs_VerifyChunkBitId(yaffs_Device *dev, int blk, int chunk) -{ - if (blk < dev->internalStartBlock || blk > dev->internalEndBlock || - chunk < 0 || chunk >= dev->nChunksPerBlock) { - T(YAFFS_TRACE_ERROR, - (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR), - blk, chunk)); - YBUG(); - } -} - -static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device *dev, int blk) -{ - __u8 *blkBits = yaffs_BlockBits(dev, blk); - - memset(blkBits, 0, dev->chunkBitmapStride); -} - -static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device *dev, int blk, int chunk) -{ - __u8 *blkBits = yaffs_BlockBits(dev, blk); - - yaffs_VerifyChunkBitId(dev, blk, chunk); - - blkBits[chunk / 8] &= ~(1 << (chunk & 7)); -} - -static Y_INLINE void yaffs_SetChunkBit(yaffs_Device *dev, int blk, int chunk) -{ - __u8 *blkBits = yaffs_BlockBits(dev, blk); - - yaffs_VerifyChunkBitId(dev, blk, chunk); - - blkBits[chunk / 8] |= (1 << (chunk & 7)); -} - -static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device *dev, int blk, int chunk) -{ - __u8 *blkBits = yaffs_BlockBits(dev, blk); - yaffs_VerifyChunkBitId(dev, blk, chunk); - - return (blkBits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0; -} - -static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device *dev, int blk) -{ - __u8 *blkBits = yaffs_BlockBits(dev, blk); - int i; - for (i = 0; i < dev->chunkBitmapStride; i++) { - if (*blkBits) - return 1; - blkBits++; - } - return 0; -} - -static int yaffs_CountChunkBits(yaffs_Device *dev, int blk) -{ - __u8 *blkBits = yaffs_BlockBits(dev, blk); - int i; - int n = 0; - for (i = 0; i < dev->chunkBitmapStride; i++) { - __u8 x = *blkBits; - while (x) { - if (x & 1) - n++; - x >>= 1; - } - - blkBits++; - } - return n; -} - -/* - * Verification code - */ - -static int yaffs_SkipVerification(yaffs_Device *dev) -{ - return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY | YAFFS_TRACE_VERIFY_FULL)); -} - -static int yaffs_SkipFullVerification(yaffs_Device *dev) -{ - return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_FULL)); -} - -static int yaffs_SkipNANDVerification(yaffs_Device *dev) -{ - return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_NAND)); -} - -static const char *blockStateName[] = { -"Unknown", -"Needs scanning", -"Scanning", -"Empty", -"Allocating", -"Full", -"Dirty", -"Checkpoint", -"Collecting", -"Dead" -}; - -static void yaffs_VerifyBlock(yaffs_Device *dev, yaffs_BlockInfo *bi, int n) -{ - int actuallyUsed; - int inUse; - - if (yaffs_SkipVerification(dev)) - return; - - /* Report illegal runtime states */ - if (bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES) - T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has undefined state %d"TENDSTR), n, bi->blockState)); - - switch (bi->blockState) { - case YAFFS_BLOCK_STATE_UNKNOWN: - case YAFFS_BLOCK_STATE_SCANNING: - case YAFFS_BLOCK_STATE_NEEDS_SCANNING: - T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has bad run-state %s"TENDSTR), - n, blockStateName[bi->blockState])); - } - - /* Check pages in use and soft deletions are legal */ - - actuallyUsed = bi->pagesInUse - bi->softDeletions; - - if (bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock || - bi->softDeletions < 0 || bi->softDeletions > dev->nChunksPerBlock || - actuallyUsed < 0 || actuallyUsed > dev->nChunksPerBlock) - T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR), - n, bi->pagesInUse, bi->softDeletions)); - - - /* Check chunk bitmap legal */ - inUse = yaffs_CountChunkBits(dev, n); - if (inUse != bi->pagesInUse) - T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR), - n, bi->pagesInUse, inUse)); - - /* Check that the sequence number is valid. - * Ten million is legal, but is very unlikely - */ - if (dev->isYaffs2 && - (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING || bi->blockState == YAFFS_BLOCK_STATE_FULL) && - (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000)) - T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has suspect sequence number of %d"TENDSTR), - n, bi->sequenceNumber)); -} - -static void yaffs_VerifyCollectedBlock(yaffs_Device *dev, yaffs_BlockInfo *bi, - int n) -{ - yaffs_VerifyBlock(dev, bi, n); - - /* After collection the block should be in the erased state */ - /* This will need to change if we do partial gc */ - - if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING && - bi->blockState != YAFFS_BLOCK_STATE_EMPTY) { - T(YAFFS_TRACE_ERROR, (TSTR("Block %d is in state %d after gc, should be erased"TENDSTR), - n, bi->blockState)); - } -} - -static void yaffs_VerifyBlocks(yaffs_Device *dev) -{ - int i; - int nBlocksPerState[YAFFS_NUMBER_OF_BLOCK_STATES]; - int nIllegalBlockStates = 0; - - if (yaffs_SkipVerification(dev)) - return; - - memset(nBlocksPerState, 0, sizeof(nBlocksPerState)); - - for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); - yaffs_VerifyBlock(dev, bi, i); - - if (bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES) - nBlocksPerState[bi->blockState]++; - else - nIllegalBlockStates++; - } - - T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR))); - T(YAFFS_TRACE_VERIFY, (TSTR("Block summary"TENDSTR))); - - T(YAFFS_TRACE_VERIFY, (TSTR("%d blocks have illegal states"TENDSTR), nIllegalBlockStates)); - if (nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1) - T(YAFFS_TRACE_VERIFY, (TSTR("Too many allocating blocks"TENDSTR))); - - for (i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++) - T(YAFFS_TRACE_VERIFY, - (TSTR("%s %d blocks"TENDSTR), - blockStateName[i], nBlocksPerState[i])); - - if (dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]) - T(YAFFS_TRACE_VERIFY, - (TSTR("Checkpoint block count wrong dev %d count %d"TENDSTR), - dev->blocksInCheckpoint, nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])); - - if (dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]) - T(YAFFS_TRACE_VERIFY, - (TSTR("Erased block count wrong dev %d count %d"TENDSTR), - dev->nErasedBlocks, nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])); - - if (nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1) - T(YAFFS_TRACE_VERIFY, - (TSTR("Too many collecting blocks %d (max is 1)"TENDSTR), - nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING])); - - T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR))); - -} - -/* - * Verify the object header. oh must be valid, but obj and tags may be NULL in which - * case those tests will not be performed. - */ -static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh, yaffs_ExtendedTags *tags, int parentCheck) -{ - if (obj && yaffs_SkipVerification(obj->myDev)) - return; - - if (!(tags && obj && oh)) { - T(YAFFS_TRACE_VERIFY, - (TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR), - (__u32)tags, (__u32)obj, (__u32)oh)); - return; - } - - if (oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN || - oh->type > YAFFS_OBJECT_TYPE_MAX) - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d header type is illegal value 0x%x"TENDSTR), - tags->objectId, oh->type)); - - if (tags->objectId != obj->objectId) - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d header mismatch objectId %d"TENDSTR), - tags->objectId, obj->objectId)); - - - /* - * Check that the object's parent ids match if parentCheck requested. - * - * Tests do not apply to the root object. - */ - - if (parentCheck && tags->objectId > 1 && !obj->parent) - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR), - tags->objectId, oh->parentObjectId)); - - if (parentCheck && obj->parent && - oh->parentObjectId != obj->parent->objectId && - (oh->parentObjectId != YAFFS_OBJECTID_UNLINKED || - obj->parent->objectId != YAFFS_OBJECTID_DELETED)) - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR), - tags->objectId, oh->parentObjectId, obj->parent->objectId)); - - if (tags->objectId > 1 && oh->name[0] == 0) /* Null name */ - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d header name is NULL"TENDSTR), - obj->objectId)); - - if (tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */ - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d header name is 0xFF"TENDSTR), - obj->objectId)); -} - - - -static int yaffs_VerifyTnodeWorker(yaffs_Object *obj, yaffs_Tnode *tn, - __u32 level, int chunkOffset) -{ - int i; - yaffs_Device *dev = obj->myDev; - int ok = 1; - - if (tn) { - if (level > 0) { - - for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { - if (tn->internal[i]) { - ok = yaffs_VerifyTnodeWorker(obj, - tn->internal[i], - level - 1, - (chunkOffset<<YAFFS_TNODES_INTERNAL_BITS) + i); - } - } - } else if (level == 0) { - yaffs_ExtendedTags tags; - __u32 objectId = obj->objectId; - - chunkOffset <<= YAFFS_TNODES_LEVEL0_BITS; - - for (i = 0; i < YAFFS_NTNODES_LEVEL0; i++) { - __u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i); - - if (theChunk > 0) { - /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.objectId,tags.chunkId,theChunk)); */ - yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags); - if (tags.objectId != objectId || tags.chunkId != chunkOffset) { - T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), - objectId, chunkOffset, theChunk, - tags.objectId, tags.chunkId)); - } - } - chunkOffset++; - } - } - } - - return ok; - -} - - -static void yaffs_VerifyFile(yaffs_Object *obj) -{ - int requiredTallness; - int actualTallness; - __u32 lastChunk; - __u32 x; - __u32 i; - yaffs_Device *dev; - yaffs_ExtendedTags tags; - yaffs_Tnode *tn; - __u32 objectId; - - if (!obj) - return; - - if (yaffs_SkipVerification(obj->myDev)) - return; - - dev = obj->myDev; - objectId = obj->objectId; - - /* Check file size is consistent with tnode depth */ - lastChunk = obj->variant.fileVariant.fileSize / dev->nDataBytesPerChunk + 1; - x = lastChunk >> YAFFS_TNODES_LEVEL0_BITS; - requiredTallness = 0; - while (x > 0) { - x >>= YAFFS_TNODES_INTERNAL_BITS; - requiredTallness++; - } - - actualTallness = obj->variant.fileVariant.topLevel; - - if (requiredTallness > actualTallness) - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d had tnode tallness %d, needs to be %d"TENDSTR), - obj->objectId, actualTallness, requiredTallness)); - - - /* Check that the chunks in the tnode tree are all correct. - * We do this by scanning through the tnode tree and - * checking the tags for every chunk match. - */ - - if (yaffs_SkipNANDVerification(dev)) - return; - - for (i = 1; i <= lastChunk; i++) { - tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant, i); - - if (tn) { - __u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i); - if (theChunk > 0) { - /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),objectId,i,theChunk)); */ - yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags); - if (tags.objectId != objectId || tags.chunkId != i) { - T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), - objectId, i, theChunk, - tags.objectId, tags.chunkId)); - } - } - } - } -} - - -static void yaffs_VerifyHardLink(yaffs_Object *obj) -{ - if (obj && yaffs_SkipVerification(obj->myDev)) - return; - - /* Verify sane equivalent object */ -} - -static void yaffs_VerifySymlink(yaffs_Object *obj) -{ - if (obj && yaffs_SkipVerification(obj->myDev)) - return; - - /* Verify symlink string */ -} - -static void yaffs_VerifySpecial(yaffs_Object *obj) -{ - if (obj && yaffs_SkipVerification(obj->myDev)) - return; -} - -static void yaffs_VerifyObject(yaffs_Object *obj) -{ - yaffs_Device *dev; - - __u32 chunkMin; - __u32 chunkMax; - - __u32 chunkIdOk; - __u32 chunkInRange; - __u32 chunkShouldNotBeDeleted; - __u32 chunkValid; - - if (!obj) - return; - - if (obj->beingCreated) - return; - - dev = obj->myDev; - - if (yaffs_SkipVerification(dev)) - return; - - /* Check sane object header chunk */ - - chunkMin = dev->internalStartBlock * dev->nChunksPerBlock; - chunkMax = (dev->internalEndBlock+1) * dev->nChunksPerBlock - 1; - - chunkInRange = (((unsigned)(obj->hdrChunk)) >= chunkMin && ((unsigned)(obj->hdrChunk)) <= chunkMax); - chunkIdOk = chunkInRange || (obj->hdrChunk == 0); - chunkValid = chunkInRange && - yaffs_CheckChunkBit(dev, - obj->hdrChunk / dev->nChunksPerBlock, - obj->hdrChunk % dev->nChunksPerBlock); - chunkShouldNotBeDeleted = chunkInRange && !chunkValid; - - if (!obj->fake && - (!chunkIdOk || chunkShouldNotBeDeleted)) { - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d has chunkId %d %s %s"TENDSTR), - obj->objectId, obj->hdrChunk, - chunkIdOk ? "" : ",out of range", - chunkShouldNotBeDeleted ? ",marked as deleted" : "")); - } - - if (chunkValid && !yaffs_SkipNANDVerification(dev)) { - yaffs_ExtendedTags tags; - yaffs_ObjectHeader *oh; - __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); - - oh = (yaffs_ObjectHeader *)buffer; - - yaffs_ReadChunkWithTagsFromNAND(dev, obj->hdrChunk, buffer, - &tags); - - yaffs_VerifyObjectHeader(obj, oh, &tags, 1); - - yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); - } - - /* Verify it has a parent */ - if (obj && !obj->fake && - (!obj->parent || obj->parent->myDev != dev)) { - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR), - obj->objectId, obj->parent)); - } - - /* Verify parent is a directory */ - if (obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR), - obj->objectId, obj->parent->variantType)); - } - - switch (obj->variantType) { - case YAFFS_OBJECT_TYPE_FILE: - yaffs_VerifyFile(obj); - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - yaffs_VerifySymlink(obj); - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - yaffs_VerifyDirectory(obj); - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - yaffs_VerifyHardLink(obj); - break; - case YAFFS_OBJECT_TYPE_SPECIAL: - yaffs_VerifySpecial(obj); - break; - case YAFFS_OBJECT_TYPE_UNKNOWN: - default: - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d has illegaltype %d"TENDSTR), - obj->objectId, obj->variantType)); - break; - } -} - -static void yaffs_VerifyObjects(yaffs_Device *dev) -{ - yaffs_Object *obj; - int i; - struct ylist_head *lh; - - if (yaffs_SkipVerification(dev)) - return; - - /* Iterate through the objects in each hash entry */ - - for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { - ylist_for_each(lh, &dev->objectBucket[i].list) { - if (lh) { - obj = ylist_entry(lh, yaffs_Object, hashLink); - yaffs_VerifyObject(obj); - } - } - } -} - - -/* - * Simple hash function. Needs to have a reasonable spread - */ - -static Y_INLINE int yaffs_HashFunction(int n) -{ - n = abs(n); - return n % YAFFS_NOBJECT_BUCKETS; -} - -/* - * Access functions to useful fake objects. - * Note that root might have a presence in NAND if permissions are set. - */ - -yaffs_Object *yaffs_Root(yaffs_Device *dev) -{ - return dev->rootDir; -} - -yaffs_Object *yaffs_LostNFound(yaffs_Device *dev) -{ - return dev->lostNFoundDir; -} - - -/* - * Erased NAND checking functions - */ - -int yaffs_CheckFF(__u8 *buffer, int nBytes) -{ - /* Horrible, slow implementation */ - while (nBytes--) { - if (*buffer != 0xFF) - return 0; - buffer++; - } - return 1; -} - -static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, - int chunkInNAND) -{ - int retval = YAFFS_OK; - __u8 *data = yaffs_GetTempBuffer(dev, __LINE__); - yaffs_ExtendedTags tags; - int result; - - result = yaffs_ReadChunkWithTagsFromNAND(dev, chunkInNAND, data, &tags); - - if (tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR) - retval = YAFFS_FAIL; - - if (!yaffs_CheckFF(data, dev->nDataBytesPerChunk) || tags.chunkUsed) { - T(YAFFS_TRACE_NANDACCESS, - (TSTR("Chunk %d not erased" TENDSTR), chunkInNAND)); - retval = YAFFS_FAIL; - } - - yaffs_ReleaseTempBuffer(dev, data, __LINE__); - - return retval; - -} - -static int yaffs_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, - const __u8 *data, - yaffs_ExtendedTags *tags, - int useReserve) -{ - int attempts = 0; - int writeOk = 0; - int chunk; - - yaffs_InvalidateCheckpoint(dev); - - do { - yaffs_BlockInfo *bi = 0; - int erasedOk = 0; - - chunk = yaffs_AllocateChunk(dev, useReserve, &bi); - if (chunk < 0) { - /* no space */ - break; - } - - /* First check this chunk is erased, if it needs - * checking. The checking policy (unless forced - * always on) is as follows: - * - * Check the first page we try to write in a block. - * If the check passes then we don't need to check any - * more. If the check fails, we check again... - * If the block has been erased, we don't need to check. - * - * However, if the block has been prioritised for gc, - * then we think there might be something odd about - * this block and stop using it. - * - * Rationale: We should only ever see chunks that have - * not been erased if there was a partially written - * chunk due to power loss. This checking policy should - * catch that case with very few checks and thus save a - * lot of checks that are most likely not needed. - */ - if (bi->gcPrioritise) { - yaffs_DeleteChunk(dev, chunk, 1, __LINE__); - /* try another chunk */ - continue; - } - - /* let's give it a try */ - attempts++; - -#ifdef CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED - bi->skipErasedCheck = 0; -#endif - if (!bi->skipErasedCheck) { - erasedOk = yaffs_CheckChunkErased(dev, chunk); - if (erasedOk != YAFFS_OK) { - T(YAFFS_TRACE_ERROR, - (TSTR("**>> yaffs chunk %d was not erased" - TENDSTR), chunk)); - - /* try another chunk */ - continue; - } - bi->skipErasedCheck = 1; - } - - writeOk = yaffs_WriteChunkWithTagsToNAND(dev, chunk, - data, tags); - if (writeOk != YAFFS_OK) { - yaffs_HandleWriteChunkError(dev, chunk, erasedOk); - /* try another chunk */ - continue; - } - - /* Copy the data into the robustification buffer */ - yaffs_HandleWriteChunkOk(dev, chunk, data, tags); - - } while (writeOk != YAFFS_OK && - (yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts)); - - if (!writeOk) - chunk = -1; - - if (attempts > 1) { - T(YAFFS_TRACE_ERROR, - (TSTR("**>> yaffs write required %d attempts" TENDSTR), - attempts)); - - dev->nRetriedWrites += (attempts - 1); - } - - return chunk; -} - -/* - * Block retiring for handling a broken block. - */ - -static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND) -{ - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND); - - yaffs_InvalidateCheckpoint(dev); - - if (yaffs_MarkBlockBad(dev, blockInNAND) != YAFFS_OK) { - if (yaffs_EraseBlockInNAND(dev, blockInNAND) != YAFFS_OK) { - T(YAFFS_TRACE_ALWAYS, (TSTR( - "yaffs: Failed to mark bad and erase block %d" - TENDSTR), blockInNAND)); - } else { - yaffs_ExtendedTags tags; - int chunkId = blockInNAND * dev->nChunksPerBlock; - - __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); - - memset(buffer, 0xff, dev->nDataBytesPerChunk); - yaffs_InitialiseTags(&tags); - tags.sequenceNumber = YAFFS_SEQUENCE_BAD_BLOCK; - if (dev->writeChunkWithTagsToNAND(dev, chunkId - - dev->chunkOffset, buffer, &tags) != YAFFS_OK) - T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Failed to " - TCONT("write bad block marker to block %d") - TENDSTR), blockInNAND)); - - yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); - } - } - - bi->blockState = YAFFS_BLOCK_STATE_DEAD; - bi->gcPrioritise = 0; - bi->needsRetiring = 0; - - dev->nRetiredBlocks++; -} - -/* - * Functions for robustisizing TODO - * - */ - -static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, - const __u8 *data, - const yaffs_ExtendedTags *tags) -{ -} - -static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, - const yaffs_ExtendedTags *tags) -{ -} - -void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi) -{ - if (!bi->gcPrioritise) { - bi->gcPrioritise = 1; - dev->hasPendingPrioritisedGCs = 1; - bi->chunkErrorStrikes++; - - if (bi->chunkErrorStrikes > 3) { - bi->needsRetiring = 1; /* Too many stikes, so retire this */ - T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Block struck out" TENDSTR))); - - } - } -} - -static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND, - int erasedOk) -{ - int blockInNAND = chunkInNAND / dev->nChunksPerBlock; - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND); - - yaffs_HandleChunkError(dev, bi); - - if (erasedOk) { - /* Was an actual write failure, so mark the block for retirement */ - bi->needsRetiring = 1; - T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, - (TSTR("**>> Block %d needs retiring" TENDSTR), blockInNAND)); - } - - /* Delete the chunk */ - yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__); -} - - -/*---------------- Name handling functions ------------*/ - -static __u16 yaffs_CalcNameSum(const YCHAR *name) -{ - __u16 sum = 0; - __u16 i = 1; - - const YUCHAR *bname = (const YUCHAR *) name; - if (bname) { - while ((*bname) && (i < (YAFFS_MAX_NAME_LENGTH/2))) { - -#ifdef CONFIG_YAFFS_CASE_INSENSITIVE - sum += yaffs_toupper(*bname) * i; -#else - sum += (*bname) * i; -#endif - i++; - bname++; - } - } - return sum; -} - -static void yaffs_SetObjectName(yaffs_Object *obj, const YCHAR *name) -{ -#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM - memset(obj->shortName, 0, sizeof(YCHAR) * (YAFFS_SHORT_NAME_LENGTH+1)); - if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH) - yaffs_strcpy(obj->shortName, name); - else - obj->shortName[0] = _Y('\0'); -#endif - obj->sum = yaffs_CalcNameSum(name); -} - -/*-------------------- TNODES ------------------- - - * List of spare tnodes - * The list is hooked together using the first pointer - * in the tnode. - */ - -/* yaffs_CreateTnodes creates a bunch more tnodes and - * adds them to the tnode free list. - * Don't use this function directly - */ - -static int yaffs_CreateTnodes(yaffs_Device *dev, int nTnodes) -{ - int i; - int tnodeSize; - yaffs_Tnode *newTnodes; - __u8 *mem; - yaffs_Tnode *curr; - yaffs_Tnode *next; - yaffs_TnodeList *tnl; - - if (nTnodes < 1) - return YAFFS_OK; - - /* Calculate the tnode size in bytes for variable width tnode support. - * Must be a multiple of 32-bits */ - tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - - if (tnodeSize < sizeof(yaffs_Tnode)) - tnodeSize = sizeof(yaffs_Tnode); - - /* make these things */ - - newTnodes = YMALLOC(nTnodes * tnodeSize); - mem = (__u8 *)newTnodes; - - if (!newTnodes) { - T(YAFFS_TRACE_ERROR, - (TSTR("yaffs: Could not allocate Tnodes" TENDSTR))); - return YAFFS_FAIL; - } - - /* Hook them into the free list */ -#if 0 - for (i = 0; i < nTnodes - 1; i++) { - newTnodes[i].internal[0] = &newTnodes[i + 1]; -#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG - newTnodes[i].internal[YAFFS_NTNODES_INTERNAL] = (void *)1; -#endif - } - - newTnodes[nTnodes - 1].internal[0] = dev->freeTnodes; -#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG - newTnodes[nTnodes - 1].internal[YAFFS_NTNODES_INTERNAL] = (void *)1; -#endif - dev->freeTnodes = newTnodes; -#else - /* New hookup for wide tnodes */ - for (i = 0; i < nTnodes - 1; i++) { - curr = (yaffs_Tnode *) &mem[i * tnodeSize]; - next = (yaffs_Tnode *) &mem[(i+1) * tnodeSize]; - curr->internal[0] = next; - } - - curr = (yaffs_Tnode *) &mem[(nTnodes - 1) * tnodeSize]; - curr->internal[0] = dev->freeTnodes; - dev->freeTnodes = (yaffs_Tnode *)mem; - -#endif - - - dev->nFreeTnodes += nTnodes; - dev->nTnodesCreated += nTnodes; - - /* Now add this bunch of tnodes to a list for freeing up. - * NB If we can't add this to the management list it isn't fatal - * but it just means we can't free this bunch of tnodes later. - */ - - tnl = YMALLOC(sizeof(yaffs_TnodeList)); - if (!tnl) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("yaffs: Could not add tnodes to management list" TENDSTR))); - return YAFFS_FAIL; - } else { - tnl->tnodes = newTnodes; - tnl->next = dev->allocatedTnodeList; - dev->allocatedTnodeList = tnl; - } - - T(YAFFS_TRACE_ALLOCATE, (TSTR("yaffs: Tnodes added" TENDSTR))); - - return YAFFS_OK; -} - -/* GetTnode gets us a clean tnode. Tries to make allocate more if we run out */ - -static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device *dev) -{ - yaffs_Tnode *tn = NULL; - - /* If there are none left make more */ - if (!dev->freeTnodes) - yaffs_CreateTnodes(dev, YAFFS_ALLOCATION_NTNODES); - - if (dev->freeTnodes) { - tn = dev->freeTnodes; -#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG - if (tn->internal[YAFFS_NTNODES_INTERNAL] != (void *)1) { - /* Hoosterman, this thing looks like it isn't in the list */ - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: Tnode list bug 1" TENDSTR))); - } -#endif - dev->freeTnodes = dev->freeTnodes->internal[0]; - dev->nFreeTnodes--; - } - - dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ - - return tn; -} - -static yaffs_Tnode *yaffs_GetTnode(yaffs_Device *dev) -{ - yaffs_Tnode *tn = yaffs_GetTnodeRaw(dev); - int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - - if (tnodeSize < sizeof(yaffs_Tnode)) - tnodeSize = sizeof(yaffs_Tnode); - - if (tn) - memset(tn, 0, tnodeSize); - - return tn; -} - -/* FreeTnode frees up a tnode and puts it back on the free list */ -static void yaffs_FreeTnode(yaffs_Device *dev, yaffs_Tnode *tn) -{ - if (tn) { -#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG - if (tn->internal[YAFFS_NTNODES_INTERNAL] != 0) { - /* Hoosterman, this thing looks like it is already in the list */ - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: Tnode list bug 2" TENDSTR))); - } - tn->internal[YAFFS_NTNODES_INTERNAL] = (void *)1; -#endif - tn->internal[0] = dev->freeTnodes; - dev->freeTnodes = tn; - dev->nFreeTnodes++; - } - dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ -} - -static void yaffs_DeinitialiseTnodes(yaffs_Device *dev) -{ - /* Free the list of allocated tnodes */ - yaffs_TnodeList *tmp; - - while (dev->allocatedTnodeList) { - tmp = dev->allocatedTnodeList->next; - - YFREE(dev->allocatedTnodeList->tnodes); - YFREE(dev->allocatedTnodeList); - dev->allocatedTnodeList = tmp; - - } - - dev->freeTnodes = NULL; - dev->nFreeTnodes = 0; -} - -static void yaffs_InitialiseTnodes(yaffs_Device *dev) -{ - dev->allocatedTnodeList = NULL; - dev->freeTnodes = NULL; - dev->nFreeTnodes = 0; - dev->nTnodesCreated = 0; -} - - -void yaffs_LoadLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos, - unsigned val) -{ - __u32 *map = (__u32 *)tn; - __u32 bitInMap; - __u32 bitInWord; - __u32 wordInMap; - __u32 mask; - - pos &= YAFFS_TNODES_LEVEL0_MASK; - val >>= dev->chunkGroupBits; - - bitInMap = pos * dev->tnodeWidth; - wordInMap = bitInMap / 32; - bitInWord = bitInMap & (32 - 1); - - mask = dev->tnodeMask << bitInWord; - - map[wordInMap] &= ~mask; - map[wordInMap] |= (mask & (val << bitInWord)); - - if (dev->tnodeWidth > (32 - bitInWord)) { - bitInWord = (32 - bitInWord); - wordInMap++;; - mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord); - map[wordInMap] &= ~mask; - map[wordInMap] |= (mask & (val >> bitInWord)); - } -} - -static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, - unsigned pos) -{ - __u32 *map = (__u32 *)tn; - __u32 bitInMap; - __u32 bitInWord; - __u32 wordInMap; - __u32 val; - - pos &= YAFFS_TNODES_LEVEL0_MASK; - - bitInMap = pos * dev->tnodeWidth; - wordInMap = bitInMap / 32; - bitInWord = bitInMap & (32 - 1); - - val = map[wordInMap] >> bitInWord; - - if (dev->tnodeWidth > (32 - bitInWord)) { - bitInWord = (32 - bitInWord); - wordInMap++;; - val |= (map[wordInMap] << bitInWord); - } - - val &= dev->tnodeMask; - val <<= dev->chunkGroupBits; - - return val; -} - -/* ------------------- End of individual tnode manipulation -----------------*/ - -/* ---------Functions to manipulate the look-up tree (made up of tnodes) ------ - * The look up tree is represented by the top tnode and the number of topLevel - * in the tree. 0 means only the level 0 tnode is in the tree. - */ - -/* FindLevel0Tnode finds the level 0 tnode, if one exists. */ -static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev, - yaffs_FileStructure *fStruct, - __u32 chunkId) -{ - yaffs_Tnode *tn = fStruct->top; - __u32 i; - int requiredTallness; - int level = fStruct->topLevel; - - /* Check sane level and chunk Id */ - if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL) - return NULL; - - if (chunkId > YAFFS_MAX_CHUNK_ID) - return NULL; - - /* First check we're tall enough (ie enough topLevel) */ - - i = chunkId >> YAFFS_TNODES_LEVEL0_BITS; - requiredTallness = 0; - while (i) { - i >>= YAFFS_TNODES_INTERNAL_BITS; - requiredTallness++; - } - - if (requiredTallness > fStruct->topLevel) - return NULL; /* Not tall enough, so we can't find it */ - - /* Traverse down to level 0 */ - while (level > 0 && tn) { - tn = tn->internal[(chunkId >> - (YAFFS_TNODES_LEVEL0_BITS + - (level - 1) * - YAFFS_TNODES_INTERNAL_BITS)) & - YAFFS_TNODES_INTERNAL_MASK]; - level--; - } - - return tn; -} - -/* AddOrFindLevel0Tnode finds the level 0 tnode if it exists, otherwise first expands the tree. - * This happens in two steps: - * 1. If the tree isn't tall enough, then make it taller. - * 2. Scan down the tree towards the level 0 tnode adding tnodes if required. - * - * Used when modifying the tree. - * - * If the tn argument is NULL, then a fresh tnode will be added otherwise the specified tn will - * be plugged into the ttree. - */ - -static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device *dev, - yaffs_FileStructure *fStruct, - __u32 chunkId, - yaffs_Tnode *passedTn) -{ - int requiredTallness; - int i; - int l; - yaffs_Tnode *tn; - - __u32 x; - - - /* Check sane level and page Id */ - if (fStruct->topLevel < 0 || fStruct->topLevel > YAFFS_TNODES_MAX_LEVEL) - return NULL; - - if (chunkId > YAFFS_MAX_CHUNK_ID) - return NULL; - - /* First check we're tall enough (ie enough topLevel) */ - - x = chunkId >> YAFFS_TNODES_LEVEL0_BITS; - requiredTallness = 0; - while (x) { - x >>= YAFFS_TNODES_INTERNAL_BITS; - requiredTallness++; - } - - - if (requiredTallness > fStruct->topLevel) { - /* Not tall enough, gotta make the tree taller */ - for (i = fStruct->topLevel; i < requiredTallness; i++) { - - tn = yaffs_GetTnode(dev); - - if (tn) { - tn->internal[0] = fStruct->top; - fStruct->top = tn; - fStruct->topLevel++; - } else { - T(YAFFS_TRACE_ERROR, - (TSTR("yaffs: no more tnodes" TENDSTR))); - return NULL; - } - } - } - - /* Traverse down to level 0, adding anything we need */ - - l = fStruct->topLevel; - tn = fStruct->top; - - if (l > 0) { - while (l > 0 && tn) { - x = (chunkId >> - (YAFFS_TNODES_LEVEL0_BITS + - (l - 1) * YAFFS_TNODES_INTERNAL_BITS)) & - YAFFS_TNODES_INTERNAL_MASK; - - - if ((l > 1) && !tn->internal[x]) { - /* Add missing non-level-zero tnode */ - tn->internal[x] = yaffs_GetTnode(dev); - if(!tn->internal[x]) - return NULL; - - } else if (l == 1) { - /* Looking from level 1 at level 0 */ - if (passedTn) { - /* If we already have one, then release it.*/ - if (tn->internal[x]) - yaffs_FreeTnode(dev, tn->internal[x]); - tn->internal[x] = passedTn; - - } else if (!tn->internal[x]) { - /* Don't have one, none passed in */ - tn->internal[x] = yaffs_GetTnode(dev); - if(!tn->internal[x]) - return NULL; - } - } - - tn = tn->internal[x]; - l--; - } - } else { - /* top is level 0 */ - if (passedTn) { - memcpy(tn, passedTn, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); - yaffs_FreeTnode(dev, passedTn); - } - } - - return tn; -} - -static int yaffs_FindChunkInGroup(yaffs_Device *dev, int theChunk, - yaffs_ExtendedTags *tags, int objectId, - int chunkInInode) -{ - int j; - - for (j = 0; theChunk && j < dev->chunkGroupSize; j++) { - if (yaffs_CheckChunkBit(dev, theChunk / dev->nChunksPerBlock, - theChunk % dev->nChunksPerBlock)) { - - if(dev->chunkGroupSize == 1) - return theChunk; - else { - yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, - tags); - if (yaffs_TagsMatch(tags, objectId, chunkInInode)) { - /* found it; */ - return theChunk; - } - } - } - theChunk++; - } - return -1; -} - - -/* DeleteWorker scans backwards through the tnode tree and deletes all the - * chunks and tnodes in the file - * Returns 1 if the tree was deleted. - * Returns 0 if it stopped early due to hitting the limit and the delete is incomplete. - */ - -static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level, - int chunkOffset, int *limit) -{ - int i; - int chunkInInode; - int theChunk; - yaffs_ExtendedTags tags; - int foundChunk; - yaffs_Device *dev = in->myDev; - - int allDone = 1; - - if (tn) { - if (level > 0) { - for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0; - i--) { - if (tn->internal[i]) { - if (limit && (*limit) < 0) { - allDone = 0; - } else { - allDone = - yaffs_DeleteWorker(in, - tn-> - internal - [i], - level - - 1, - (chunkOffset - << - YAFFS_TNODES_INTERNAL_BITS) - + i, - limit); - } - if (allDone) { - yaffs_FreeTnode(dev, - tn-> - internal[i]); - tn->internal[i] = NULL; - } - } - } - return (allDone) ? 1 : 0; - } else if (level == 0) { - int hitLimit = 0; - - for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit; - i--) { - theChunk = yaffs_GetChunkGroupBase(dev, tn, i); - if (theChunk) { - - chunkInInode = (chunkOffset << - YAFFS_TNODES_LEVEL0_BITS) + i; - - foundChunk = - yaffs_FindChunkInGroup(dev, - theChunk, - &tags, - in->objectId, - chunkInInode); - - if (foundChunk > 0) { - yaffs_DeleteChunk(dev, - foundChunk, 1, - __LINE__); - in->nDataChunks--; - if (limit) { - *limit = *limit - 1; - if (*limit <= 0) - hitLimit = 1; - } - - } - - yaffs_LoadLevel0Tnode(dev, tn, i, 0); - } - - } - return (i < 0) ? 1 : 0; - - } - - } - - return 1; - -} - -static void yaffs_SoftDeleteChunk(yaffs_Device *dev, int chunk) -{ - yaffs_BlockInfo *theBlock; - - T(YAFFS_TRACE_DELETION, (TSTR("soft delete chunk %d" TENDSTR), chunk)); - - theBlock = yaffs_GetBlockInfo(dev, chunk / dev->nChunksPerBlock); - if (theBlock) { - theBlock->softDeletions++; - dev->nFreeChunks++; - } -} - -/* SoftDeleteWorker scans backwards through the tnode tree and soft deletes all the chunks in the file. - * All soft deleting does is increment the block's softdelete count and pulls the chunk out - * of the tnode. - * Thus, essentially this is the same as DeleteWorker except that the chunks are soft deleted. - */ - -static int yaffs_SoftDeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, - __u32 level, int chunkOffset) -{ - int i; - int theChunk; - int allDone = 1; - yaffs_Device *dev = in->myDev; - - if (tn) { - if (level > 0) { - - for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0; - i--) { - if (tn->internal[i]) { - allDone = - yaffs_SoftDeleteWorker(in, - tn-> - internal[i], - level - 1, - (chunkOffset - << - YAFFS_TNODES_INTERNAL_BITS) - + i); - if (allDone) { - yaffs_FreeTnode(dev, - tn-> - internal[i]); - tn->internal[i] = NULL; - } else { - /* Hoosterman... how could this happen? */ - } - } - } - return (allDone) ? 1 : 0; - } else if (level == 0) { - - for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) { - theChunk = yaffs_GetChunkGroupBase(dev, tn, i); - if (theChunk) { - /* Note this does not find the real chunk, only the chunk group. - * We make an assumption that a chunk group is not larger than - * a block. - */ - yaffs_SoftDeleteChunk(dev, theChunk); - yaffs_LoadLevel0Tnode(dev, tn, i, 0); - } - - } - return 1; - - } - - } - - return 1; - -} - -static void yaffs_SoftDeleteFile(yaffs_Object *obj) -{ - if (obj->deleted && - obj->variantType == YAFFS_OBJECT_TYPE_FILE && !obj->softDeleted) { - if (obj->nDataChunks <= 0) { - /* Empty file with no duplicate object headers, just delete it immediately */ - yaffs_FreeTnode(obj->myDev, - obj->variant.fileVariant.top); - obj->variant.fileVariant.top = NULL; - T(YAFFS_TRACE_TRACING, - (TSTR("yaffs: Deleting empty file %d" TENDSTR), - obj->objectId)); - yaffs_DoGenericObjectDeletion(obj); - } else { - yaffs_SoftDeleteWorker(obj, - obj->variant.fileVariant.top, - obj->variant.fileVariant. - topLevel, 0); - obj->softDeleted = 1; - } - } -} - -/* Pruning removes any part of the file structure tree that is beyond the - * bounds of the file (ie that does not point to chunks). - * - * A file should only get pruned when its size is reduced. - * - * Before pruning, the chunks must be pulled from the tree and the - * level 0 tnode entries must be zeroed out. - * Could also use this for file deletion, but that's probably better handled - * by a special case. - */ - -static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device *dev, yaffs_Tnode *tn, - __u32 level, int del0) -{ - int i; - int hasData; - - if (tn) { - hasData = 0; - - for (i = 0; i < YAFFS_NTNODES_INTERNAL; i++) { - if (tn->internal[i] && level > 0) { - tn->internal[i] = - yaffs_PruneWorker(dev, tn->internal[i], - level - 1, - (i == 0) ? del0 : 1); - } - - if (tn->internal[i]) - hasData++; - } - - if (hasData == 0 && del0) { - /* Free and return NULL */ - - yaffs_FreeTnode(dev, tn); - tn = NULL; - } - - } - - return tn; - -} - -static int yaffs_PruneFileStructure(yaffs_Device *dev, - yaffs_FileStructure *fStruct) -{ - int i; - int hasData; - int done = 0; - yaffs_Tnode *tn; - - if (fStruct->topLevel > 0) { - fStruct->top = - yaffs_PruneWorker(dev, fStruct->top, fStruct->topLevel, 0); - - /* Now we have a tree with all the non-zero branches NULL but the height - * is the same as it was. - * Let's see if we can trim internal tnodes to shorten the tree. - * We can do this if only the 0th element in the tnode is in use - * (ie all the non-zero are NULL) - */ - - while (fStruct->topLevel && !done) { - tn = fStruct->top; - - hasData = 0; - for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) { - if (tn->internal[i]) - hasData++; - } - - if (!hasData) { - fStruct->top = tn->internal[0]; - fStruct->topLevel--; - yaffs_FreeTnode(dev, tn); - } else { - done = 1; - } - } - } - - return YAFFS_OK; -} - -/*-------------------- End of File Structure functions.-------------------*/ - -/* yaffs_CreateFreeObjects creates a bunch more objects and - * adds them to the object free list. - */ -static int yaffs_CreateFreeObjects(yaffs_Device *dev, int nObjects) -{ - int i; - yaffs_Object *newObjects; - yaffs_ObjectList *list; - - if (nObjects < 1) - return YAFFS_OK; - - /* make these things */ - newObjects = YMALLOC(nObjects * sizeof(yaffs_Object)); - list = YMALLOC(sizeof(yaffs_ObjectList)); - - if (!newObjects || !list) { - if (newObjects) - YFREE(newObjects); - if (list) - YFREE(list); - T(YAFFS_TRACE_ALLOCATE, - (TSTR("yaffs: Could not allocate more objects" TENDSTR))); - return YAFFS_FAIL; - } - - /* Hook them into the free list */ - for (i = 0; i < nObjects - 1; i++) { - newObjects[i].siblings.next = - (struct ylist_head *)(&newObjects[i + 1]); - } - - newObjects[nObjects - 1].siblings.next = (void *)dev->freeObjects; - dev->freeObjects = newObjects; - dev->nFreeObjects += nObjects; - dev->nObjectsCreated += nObjects; - - /* Now add this bunch of Objects to a list for freeing up. */ - - list->objects = newObjects; - list->next = dev->allocatedObjectList; - dev->allocatedObjectList = list; - - return YAFFS_OK; -} - - -/* AllocateEmptyObject gets us a clean Object. Tries to make allocate more if we run out */ -static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device *dev) -{ - yaffs_Object *tn = NULL; - -#ifdef VALGRIND_TEST - tn = YMALLOC(sizeof(yaffs_Object)); -#else - /* If there are none left make more */ - if (!dev->freeObjects) - yaffs_CreateFreeObjects(dev, YAFFS_ALLOCATION_NOBJECTS); - - if (dev->freeObjects) { - tn = dev->freeObjects; - dev->freeObjects = - (yaffs_Object *) (dev->freeObjects->siblings.next); - dev->nFreeObjects--; - } -#endif - if (tn) { - /* Now sweeten it up... */ - - memset(tn, 0, sizeof(yaffs_Object)); - tn->beingCreated = 1; - - tn->myDev = dev; - tn->hdrChunk = 0; - tn->variantType = YAFFS_OBJECT_TYPE_UNKNOWN; - YINIT_LIST_HEAD(&(tn->hardLinks)); - YINIT_LIST_HEAD(&(tn->hashLink)); - YINIT_LIST_HEAD(&tn->siblings); - - - /* Now make the directory sane */ - if (dev->rootDir) { - tn->parent = dev->rootDir; - ylist_add(&(tn->siblings), &dev->rootDir->variant.directoryVariant.children); - } - - /* Add it to the lost and found directory. - * NB Can't put root or lostNFound in lostNFound so - * check if lostNFound exists first - */ - if (dev->lostNFoundDir) - yaffs_AddObjectToDirectory(dev->lostNFoundDir, tn); - - tn->beingCreated = 0; - } - - dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ - - return tn; -} - -static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device *dev, int number, - __u32 mode) -{ - - yaffs_Object *obj = - yaffs_CreateNewObject(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY); - if (obj) { - obj->fake = 1; /* it is fake so it might have no NAND presence... */ - obj->renameAllowed = 0; /* ... and we're not allowed to rename it... */ - obj->unlinkAllowed = 0; /* ... or unlink it */ - obj->deleted = 0; - obj->unlinked = 0; - obj->yst_mode = mode; - obj->myDev = dev; - obj->hdrChunk = 0; /* Not a valid chunk. */ - } - - return obj; - -} - -static void yaffs_UnhashObject(yaffs_Object *tn) -{ - int bucket; - yaffs_Device *dev = tn->myDev; - - /* If it is still linked into the bucket list, free from the list */ - if (!ylist_empty(&tn->hashLink)) { - ylist_del_init(&tn->hashLink); - bucket = yaffs_HashFunction(tn->objectId); - dev->objectBucket[bucket].count--; - } -} - -/* FreeObject frees up a Object and puts it back on the free list */ -static void yaffs_FreeObject(yaffs_Object *tn) -{ - yaffs_Device *dev = tn->myDev; - -#ifdef __KERNEL__ - T(YAFFS_TRACE_OS, (TSTR("FreeObject %p inode %p"TENDSTR), tn, tn->myInode)); -#endif - - if (tn->parent) - YBUG(); - if (!ylist_empty(&tn->siblings)) - YBUG(); - - -#ifdef __KERNEL__ - if (tn->myInode) { - /* We're still hooked up to a cached inode. - * Don't delete now, but mark for later deletion - */ - tn->deferedFree = 1; - return; - } -#endif - - yaffs_UnhashObject(tn); - -#ifdef VALGRIND_TEST - YFREE(tn); -#else - /* Link into the free list. */ - tn->siblings.next = (struct ylist_head *)(dev->freeObjects); - dev->freeObjects = tn; - dev->nFreeObjects++; -#endif - dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ -} - -#ifdef __KERNEL__ - -void yaffs_HandleDeferedFree(yaffs_Object *obj) -{ - if (obj->deferedFree) - yaffs_FreeObject(obj); -} - -#endif - -static void yaffs_DeinitialiseObjects(yaffs_Device *dev) -{ - /* Free the list of allocated Objects */ - - yaffs_ObjectList *tmp; - - while (dev->allocatedObjectList) { - tmp = dev->allocatedObjectList->next; - YFREE(dev->allocatedObjectList->objects); - YFREE(dev->allocatedObjectList); - - dev->allocatedObjectList = tmp; - } - - dev->freeObjects = NULL; - dev->nFreeObjects = 0; -} - -static void yaffs_InitialiseObjects(yaffs_Device *dev) -{ - int i; - - dev->allocatedObjectList = NULL; - dev->freeObjects = NULL; - dev->nFreeObjects = 0; - - for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { - YINIT_LIST_HEAD(&dev->objectBucket[i].list); - dev->objectBucket[i].count = 0; - } -} - -static int yaffs_FindNiceObjectBucket(yaffs_Device *dev) -{ - static int x; - int i; - int l = 999; - int lowest = 999999; - - /* First let's see if we can find one that's empty. */ - - for (i = 0; i < 10 && lowest > 0; i++) { - x++; - x %= YAFFS_NOBJECT_BUCKETS; - if (dev->objectBucket[x].count < lowest) { - lowest = dev->objectBucket[x].count; - l = x; - } - - } - - /* If we didn't find an empty list, then try - * looking a bit further for a short one - */ - - for (i = 0; i < 10 && lowest > 3; i++) { - x++; - x %= YAFFS_NOBJECT_BUCKETS; - if (dev->objectBucket[x].count < lowest) { - lowest = dev->objectBucket[x].count; - l = x; - } - - } - - return l; -} - -static int yaffs_CreateNewObjectNumber(yaffs_Device *dev) -{ - int bucket = yaffs_FindNiceObjectBucket(dev); - - /* Now find an object value that has not already been taken - * by scanning the list. - */ - - int found = 0; - struct ylist_head *i; - - __u32 n = (__u32) bucket; - - /* yaffs_CheckObjectHashSanity(); */ - - while (!found) { - found = 1; - n += YAFFS_NOBJECT_BUCKETS; - if (1 || dev->objectBucket[bucket].count > 0) { - ylist_for_each(i, &dev->objectBucket[bucket].list) { - /* If there is already one in the list */ - if (i && ylist_entry(i, yaffs_Object, - hashLink)->objectId == n) { - found = 0; - } - } - } - } - - return n; -} - -static void yaffs_HashObject(yaffs_Object *in) -{ - int bucket = yaffs_HashFunction(in->objectId); - yaffs_Device *dev = in->myDev; - - ylist_add(&in->hashLink, &dev->objectBucket[bucket].list); - dev->objectBucket[bucket].count++; -} - -yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number) -{ - int bucket = yaffs_HashFunction(number); - struct ylist_head *i; - yaffs_Object *in; - - ylist_for_each(i, &dev->objectBucket[bucket].list) { - /* Look if it is in the list */ - if (i) { - in = ylist_entry(i, yaffs_Object, hashLink); - if (in->objectId == number) { -#ifdef __KERNEL__ - /* Don't tell the VFS about this one if it is defered free */ - if (in->deferedFree) - return NULL; -#endif - - return in; - } - } - } - - return NULL; -} - -yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number, - yaffs_ObjectType type) -{ - yaffs_Object *theObject; - yaffs_Tnode *tn = NULL; - - if (number < 0) - number = yaffs_CreateNewObjectNumber(dev); - - if (type == YAFFS_OBJECT_TYPE_FILE) { - tn = yaffs_GetTnode(dev); - if (!tn) - return NULL; - } - - theObject = yaffs_AllocateEmptyObject(dev); - if (!theObject){ - if(tn) - yaffs_FreeTnode(dev,tn); - return NULL; - } - - - if (theObject) { - theObject->fake = 0; - theObject->renameAllowed = 1; - theObject->unlinkAllowed = 1; - theObject->objectId = number; - yaffs_HashObject(theObject); - theObject->variantType = type; -#ifdef CONFIG_YAFFS_WINCE - yfsd_WinFileTimeNow(theObject->win_atime); - theObject->win_ctime[0] = theObject->win_mtime[0] = - theObject->win_atime[0]; - theObject->win_ctime[1] = theObject->win_mtime[1] = - theObject->win_atime[1]; - -#else - - theObject->yst_atime = theObject->yst_mtime = - theObject->yst_ctime = Y_CURRENT_TIME; -#endif - switch (type) { - case YAFFS_OBJECT_TYPE_FILE: - theObject->variant.fileVariant.fileSize = 0; - theObject->variant.fileVariant.scannedFileSize = 0; - theObject->variant.fileVariant.shrinkSize = 0xFFFFFFFF; /* max __u32 */ - theObject->variant.fileVariant.topLevel = 0; - theObject->variant.fileVariant.top = tn; - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - YINIT_LIST_HEAD(&theObject->variant.directoryVariant. - children); - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - case YAFFS_OBJECT_TYPE_HARDLINK: - case YAFFS_OBJECT_TYPE_SPECIAL: - /* No action required */ - break; - case YAFFS_OBJECT_TYPE_UNKNOWN: - /* todo this should not happen */ - break; - } - } - - return theObject; -} - -static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device *dev, - int number, - yaffs_ObjectType type) -{ - yaffs_Object *theObject = NULL; - - if (number > 0) - theObject = yaffs_FindObjectByNumber(dev, number); - - if (!theObject) - theObject = yaffs_CreateNewObject(dev, number, type); - - return theObject; - -} - - -static YCHAR *yaffs_CloneString(const YCHAR *str) -{ - YCHAR *newStr = NULL; - - if (str && *str) { - newStr = YMALLOC((yaffs_strlen(str) + 1) * sizeof(YCHAR)); - if (newStr) - yaffs_strcpy(newStr, str); - } - - return newStr; - -} - -/* - * Mknod (create) a new object. - * equivalentObject only has meaning for a hard link; - * aliasString only has meaning for a sumlink. - * rdev only has meaning for devices (a subset of special objects) - */ - -static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type, - yaffs_Object *parent, - const YCHAR *name, - __u32 mode, - __u32 uid, - __u32 gid, - yaffs_Object *equivalentObject, - const YCHAR *aliasString, __u32 rdev) -{ - yaffs_Object *in; - YCHAR *str = NULL; - - yaffs_Device *dev = parent->myDev; - - /* Check if the entry exists. If it does then fail the call since we don't want a dup.*/ - if (yaffs_FindObjectByName(parent, name)) - return NULL; - - if (type == YAFFS_OBJECT_TYPE_SYMLINK) { - str = yaffs_CloneString(aliasString); - if (!str) - return NULL; - } - - in = yaffs_CreateNewObject(dev, -1, type); - - if (!in){ - if(str) - YFREE(str); - return NULL; - } - - - - - if (in) { - in->hdrChunk = 0; - in->valid = 1; - in->variantType = type; - - in->yst_mode = mode; - -#ifdef CONFIG_YAFFS_WINCE - yfsd_WinFileTimeNow(in->win_atime); - in->win_ctime[0] = in->win_mtime[0] = in->win_atime[0]; - in->win_ctime[1] = in->win_mtime[1] = in->win_atime[1]; - -#else - in->yst_atime = in->yst_mtime = in->yst_ctime = Y_CURRENT_TIME; - - in->yst_rdev = rdev; - in->yst_uid = uid; - in->yst_gid = gid; -#endif - in->nDataChunks = 0; - - yaffs_SetObjectName(in, name); - in->dirty = 1; - - yaffs_AddObjectToDirectory(parent, in); - - in->myDev = parent->myDev; - - switch (type) { - case YAFFS_OBJECT_TYPE_SYMLINK: - in->variant.symLinkVariant.alias = str; - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - in->variant.hardLinkVariant.equivalentObject = - equivalentObject; - in->variant.hardLinkVariant.equivalentObjectId = - equivalentObject->objectId; - ylist_add(&in->hardLinks, &equivalentObject->hardLinks); - break; - case YAFFS_OBJECT_TYPE_FILE: - case YAFFS_OBJECT_TYPE_DIRECTORY: - case YAFFS_OBJECT_TYPE_SPECIAL: - case YAFFS_OBJECT_TYPE_UNKNOWN: - /* do nothing */ - break; - } - - if (yaffs_UpdateObjectHeader(in, name, 0, 0, 0) < 0) { - /* Could not create the object header, fail the creation */ - yaffs_DeleteObject(in); - in = NULL; - } - - yaffs_UpdateParent(parent); - } - - return in; -} - -yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid) -{ - return yaffs_MknodObject(YAFFS_OBJECT_TYPE_FILE, parent, name, mode, - uid, gid, NULL, NULL, 0); -} - -yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid) -{ - return yaffs_MknodObject(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name, - mode, uid, gid, NULL, NULL, 0); -} - -yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid, __u32 rdev) -{ - return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode, - uid, gid, NULL, NULL, rdev); -} - -yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid, - const YCHAR *alias) -{ - return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode, - uid, gid, NULL, alias, 0); -} - -/* yaffs_Link returns the object id of the equivalent object.*/ -yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name, - yaffs_Object *equivalentObject) -{ - /* Get the real object in case we were fed a hard link as an equivalent object */ - equivalentObject = yaffs_GetEquivalentObject(equivalentObject); - - if (yaffs_MknodObject - (YAFFS_OBJECT_TYPE_HARDLINK, parent, name, 0, 0, 0, - equivalentObject, NULL, 0)) { - return equivalentObject; - } else { - return NULL; - } - -} - -static int yaffs_ChangeObjectName(yaffs_Object *obj, yaffs_Object *newDir, - const YCHAR *newName, int force, int shadows) -{ - int unlinkOp; - int deleteOp; - - yaffs_Object *existingTarget; - - if (newDir == NULL) - newDir = obj->parent; /* use the old directory */ - - if (newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragedy: yaffs_ChangeObjectName: newDir is not a directory" - TENDSTR))); - YBUG(); - } - - /* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */ - if (obj->myDev->isYaffs2) - unlinkOp = (newDir == obj->myDev->unlinkedDir); - else - unlinkOp = (newDir == obj->myDev->unlinkedDir - && obj->variantType == YAFFS_OBJECT_TYPE_FILE); - - deleteOp = (newDir == obj->myDev->deletedDir); - - existingTarget = yaffs_FindObjectByName(newDir, newName); - - /* If the object is a file going into the unlinked directory, - * then it is OK to just stuff it in since duplicate names are allowed. - * else only proceed if the new name does not exist and if we're putting - * it into a directory. - */ - if ((unlinkOp || - deleteOp || - force || - (shadows > 0) || - !existingTarget) && - newDir->variantType == YAFFS_OBJECT_TYPE_DIRECTORY) { - yaffs_SetObjectName(obj, newName); - obj->dirty = 1; - - yaffs_AddObjectToDirectory(newDir, obj); - - if (unlinkOp) - obj->unlinked = 1; - - /* If it is a deletion then we mark it as a shrink for gc purposes. */ - if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows) >= 0) - return YAFFS_OK; - } - - return YAFFS_FAIL; -} - -int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName, - yaffs_Object *newDir, const YCHAR *newName) -{ - yaffs_Object *obj = NULL; - yaffs_Object *existingTarget = NULL; - int force = 0; - int result; - yaffs_Device *dev; - - - if (!oldDir || oldDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) - YBUG(); - if (!newDir || newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) - YBUG(); - - dev = oldDir->myDev; - -#ifdef CONFIG_YAFFS_CASE_INSENSITIVE - /* Special case for case insemsitive systems (eg. WinCE). - * While look-up is case insensitive, the name isn't. - * Therefore we might want to change x.txt to X.txt - */ - if (oldDir == newDir && yaffs_strcmp(oldName, newName) == 0) - force = 1; -#endif - - if(yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH) - /* ENAMETOOLONG */ - return YAFFS_FAIL; - - obj = yaffs_FindObjectByName(oldDir, oldName); - - if (obj && obj->renameAllowed) { - - /* Now do the handling for an existing target, if there is one */ - - existingTarget = yaffs_FindObjectByName(newDir, newName); - if (existingTarget && - existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && - !ylist_empty(&existingTarget->variant.directoryVariant.children)) { - /* There is a target that is a non-empty directory, so we fail */ - return YAFFS_FAIL; /* EEXIST or ENOTEMPTY */ - } else if (existingTarget && existingTarget != obj) { - /* Nuke the target first, using shadowing, - * but only if it isn't the same object. - * - * Note we must disable gc otherwise it can mess up the shadowing. - * - */ - dev->isDoingGC=1; - yaffs_ChangeObjectName(obj, newDir, newName, force, - existingTarget->objectId); - existingTarget->isShadowed = 1; - yaffs_UnlinkObject(existingTarget); - dev->isDoingGC=0; - } - - result = yaffs_ChangeObjectName(obj, newDir, newName, 1, 0); - - yaffs_UpdateParent(oldDir); - if(newDir != oldDir) - yaffs_UpdateParent(newDir); - - return result; - } - return YAFFS_FAIL; -} - -/*------------------------- Block Management and Page Allocation ----------------*/ - -static int yaffs_InitialiseBlocks(yaffs_Device *dev) -{ - int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; - - dev->blockInfo = NULL; - dev->chunkBits = NULL; - - dev->allocationBlock = -1; /* force it to get a new one */ - - /* If the first allocation strategy fails, thry the alternate one */ - dev->blockInfo = YMALLOC(nBlocks * sizeof(yaffs_BlockInfo)); - if (!dev->blockInfo) { - dev->blockInfo = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockInfo)); - dev->blockInfoAlt = 1; - } else - dev->blockInfoAlt = 0; - - if (dev->blockInfo) { - /* Set up dynamic blockinfo stuff. */ - dev->chunkBitmapStride = (dev->nChunksPerBlock + 7) / 8; /* round up bytes */ - dev->chunkBits = YMALLOC(dev->chunkBitmapStride * nBlocks); - if (!dev->chunkBits) { - dev->chunkBits = YMALLOC_ALT(dev->chunkBitmapStride * nBlocks); - dev->chunkBitsAlt = 1; - } else - dev->chunkBitsAlt = 0; - } - - if (dev->blockInfo && dev->chunkBits) { - memset(dev->blockInfo, 0, nBlocks * sizeof(yaffs_BlockInfo)); - memset(dev->chunkBits, 0, dev->chunkBitmapStride * nBlocks); - return YAFFS_OK; - } - - return YAFFS_FAIL; -} - -static void yaffs_DeinitialiseBlocks(yaffs_Device *dev) -{ - if (dev->blockInfoAlt && dev->blockInfo) - YFREE_ALT(dev->blockInfo); - else if (dev->blockInfo) - YFREE(dev->blockInfo); - - dev->blockInfoAlt = 0; - - dev->blockInfo = NULL; - - if (dev->chunkBitsAlt && dev->chunkBits) - YFREE_ALT(dev->chunkBits); - else if (dev->chunkBits) - YFREE(dev->chunkBits); - dev->chunkBitsAlt = 0; - dev->chunkBits = NULL; -} - -static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device *dev, - yaffs_BlockInfo *bi) -{ - int i; - __u32 seq; - yaffs_BlockInfo *b; - - if (!dev->isYaffs2) - return 1; /* disqualification only applies to yaffs2. */ - - if (!bi->hasShrinkHeader) - return 1; /* can gc */ - - /* Find the oldest dirty sequence number if we don't know it and save it - * so we don't have to keep recomputing it. - */ - if (!dev->oldestDirtySequence) { - seq = dev->sequenceNumber; - - for (i = dev->internalStartBlock; i <= dev->internalEndBlock; - i++) { - b = yaffs_GetBlockInfo(dev, i); - if (b->blockState == YAFFS_BLOCK_STATE_FULL && - (b->pagesInUse - b->softDeletions) < - dev->nChunksPerBlock && b->sequenceNumber < seq) { - seq = b->sequenceNumber; - } - } - dev->oldestDirtySequence = seq; - } - - /* Can't do gc of this block if there are any blocks older than this one that have - * discarded pages. - */ - return (bi->sequenceNumber <= dev->oldestDirtySequence); -} - -/* FindDiretiestBlock is used to select the dirtiest block (or close enough) - * for garbage collection. - */ - -static int yaffs_FindBlockForGarbageCollection(yaffs_Device *dev, - int aggressive) -{ - int b = dev->currentDirtyChecker; - - int i; - int iterations; - int dirtiest = -1; - int pagesInUse = 0; - int prioritised = 0; - yaffs_BlockInfo *bi; - int pendingPrioritisedExist = 0; - - /* First let's see if we need to grab a prioritised block */ - if (dev->hasPendingPrioritisedGCs) { - for (i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++) { - - bi = yaffs_GetBlockInfo(dev, i); - /* yaffs_VerifyBlock(dev,bi,i); */ - - if (bi->gcPrioritise) { - pendingPrioritisedExist = 1; - if (bi->blockState == YAFFS_BLOCK_STATE_FULL && - yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { - pagesInUse = (bi->pagesInUse - bi->softDeletions); - dirtiest = i; - prioritised = 1; - aggressive = 1; /* Fool the non-aggressive skip logiv below */ - } - } - } - - if (!pendingPrioritisedExist) /* None found, so we can clear this */ - dev->hasPendingPrioritisedGCs = 0; - } - - /* If we're doing aggressive GC then we are happy to take a less-dirty block, and - * search harder. - * else (we're doing a leasurely gc), then we only bother to do this if the - * block has only a few pages in use. - */ - - dev->nonAggressiveSkip--; - - if (!aggressive && (dev->nonAggressiveSkip > 0)) - return -1; - - if (!prioritised) - pagesInUse = - (aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1; - - if (aggressive) - iterations = - dev->internalEndBlock - dev->internalStartBlock + 1; - else { - iterations = - dev->internalEndBlock - dev->internalStartBlock + 1; - iterations = iterations / 16; - if (iterations > 200) - iterations = 200; - } - - for (i = 0; i <= iterations && pagesInUse > 0 && !prioritised; i++) { - b++; - if (b < dev->internalStartBlock || b > dev->internalEndBlock) - b = dev->internalStartBlock; - - if (b < dev->internalStartBlock || b > dev->internalEndBlock) { - T(YAFFS_TRACE_ERROR, - (TSTR("**>> Block %d is not valid" TENDSTR), b)); - YBUG(); - } - - bi = yaffs_GetBlockInfo(dev, b); - - if (bi->blockState == YAFFS_BLOCK_STATE_FULL && - (bi->pagesInUse - bi->softDeletions) < pagesInUse && - yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { - dirtiest = b; - pagesInUse = (bi->pagesInUse - bi->softDeletions); - } - } - - dev->currentDirtyChecker = b; - - if (dirtiest > 0) { - T(YAFFS_TRACE_GC, - (TSTR("GC Selected block %d with %d free, prioritised:%d" TENDSTR), dirtiest, - dev->nChunksPerBlock - pagesInUse, prioritised)); - } - - dev->oldestDirtySequence = 0; - - if (dirtiest > 0) - dev->nonAggressiveSkip = 4; - - return dirtiest; -} - -static void yaffs_BlockBecameDirty(yaffs_Device *dev, int blockNo) -{ - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockNo); - - int erasedOk = 0; - - /* If the block is still healthy erase it and mark as clean. - * If the block has had a data failure, then retire it. - */ - - T(YAFFS_TRACE_GC | YAFFS_TRACE_ERASE, - (TSTR("yaffs_BlockBecameDirty block %d state %d %s"TENDSTR), - blockNo, bi->blockState, (bi->needsRetiring) ? "needs retiring" : "")); - - bi->blockState = YAFFS_BLOCK_STATE_DIRTY; - - if (!bi->needsRetiring) { - yaffs_InvalidateCheckpoint(dev); - erasedOk = yaffs_EraseBlockInNAND(dev, blockNo); - if (!erasedOk) { - dev->nErasureFailures++; - T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, - (TSTR("**>> Erasure failed %d" TENDSTR), blockNo)); - } - } - - if (erasedOk && - ((yaffs_traceMask & YAFFS_TRACE_ERASE) || !yaffs_SkipVerification(dev))) { - int i; - for (i = 0; i < dev->nChunksPerBlock; i++) { - if (!yaffs_CheckChunkErased - (dev, blockNo * dev->nChunksPerBlock + i)) { - T(YAFFS_TRACE_ERROR, - (TSTR - (">>Block %d erasure supposedly OK, but chunk %d not erased" - TENDSTR), blockNo, i)); - } - } - } - - if (erasedOk) { - /* Clean it up... */ - bi->blockState = YAFFS_BLOCK_STATE_EMPTY; - dev->nErasedBlocks++; - bi->pagesInUse = 0; - bi->softDeletions = 0; - bi->hasShrinkHeader = 0; - bi->skipErasedCheck = 1; /* This is clean, so no need to check */ - bi->gcPrioritise = 0; - yaffs_ClearChunkBits(dev, blockNo); - - T(YAFFS_TRACE_ERASE, - (TSTR("Erased block %d" TENDSTR), blockNo)); - } else { - dev->nFreeChunks -= dev->nChunksPerBlock; /* We lost a block of free space */ - - yaffs_RetireBlock(dev, blockNo); - T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, - (TSTR("**>> Block %d retired" TENDSTR), blockNo)); - } -} - -static int yaffs_FindBlockForAllocation(yaffs_Device *dev) -{ - int i; - - yaffs_BlockInfo *bi; - - if (dev->nErasedBlocks < 1) { - /* Hoosterman we've got a problem. - * Can't get space to gc - */ - T(YAFFS_TRACE_ERROR, - (TSTR("yaffs tragedy: no more erased blocks" TENDSTR))); - - return -1; - } - - /* Find an empty block. */ - - for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { - dev->allocationBlockFinder++; - if (dev->allocationBlockFinder < dev->internalStartBlock - || dev->allocationBlockFinder > dev->internalEndBlock) { - dev->allocationBlockFinder = dev->internalStartBlock; - } - - bi = yaffs_GetBlockInfo(dev, dev->allocationBlockFinder); - - if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) { - bi->blockState = YAFFS_BLOCK_STATE_ALLOCATING; - dev->sequenceNumber++; - bi->sequenceNumber = dev->sequenceNumber; - dev->nErasedBlocks--; - T(YAFFS_TRACE_ALLOCATE, - (TSTR("Allocated block %d, seq %d, %d left" TENDSTR), - dev->allocationBlockFinder, dev->sequenceNumber, - dev->nErasedBlocks)); - return dev->allocationBlockFinder; - } - } - - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("yaffs tragedy: no more erased blocks, but there should have been %d" - TENDSTR), dev->nErasedBlocks)); - - return -1; -} - - - -static int yaffs_CalcCheckpointBlocksRequired(yaffs_Device *dev) -{ - if (!dev->nCheckpointBlocksRequired && - dev->isYaffs2) { - /* Not a valid value so recalculate */ - int nBytes = 0; - int nBlocks; - int devBlocks = (dev->endBlock - dev->startBlock + 1); - int tnodeSize; - - tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - - if (tnodeSize < sizeof(yaffs_Tnode)) - tnodeSize = sizeof(yaffs_Tnode); - - nBytes += sizeof(yaffs_CheckpointValidity); - nBytes += sizeof(yaffs_CheckpointDevice); - nBytes += devBlocks * sizeof(yaffs_BlockInfo); - nBytes += devBlocks * dev->chunkBitmapStride; - nBytes += (sizeof(yaffs_CheckpointObject) + sizeof(__u32)) * (dev->nObjectsCreated - dev->nFreeObjects); - nBytes += (tnodeSize + sizeof(__u32)) * (dev->nTnodesCreated - dev->nFreeTnodes); - nBytes += sizeof(yaffs_CheckpointValidity); - nBytes += sizeof(__u32); /* checksum*/ - - /* Round up and add 2 blocks to allow for some bad blocks, so add 3 */ - - nBlocks = (nBytes/(dev->nDataBytesPerChunk * dev->nChunksPerBlock)) + 3; - - dev->nCheckpointBlocksRequired = nBlocks; - } - - return dev->nCheckpointBlocksRequired; -} - -/* - * Check if there's space to allocate... - * Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()? - */ -static int yaffs_CheckSpaceForAllocation(yaffs_Device *dev) -{ - int reservedChunks; - int reservedBlocks = dev->nReservedBlocks; - int checkpointBlocks; - - if (dev->isYaffs2) { -#ifdef CYGSEM_FS_YAFFS_OMIT_YAFFS2_CODE -#else - checkpointBlocks = yaffs_CalcCheckpointBlocksRequired(dev) - - dev->blocksInCheckpoint; - if (checkpointBlocks < 0) -#endif - checkpointBlocks = 0; - } else { - checkpointBlocks = 0; - } - - reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->nChunksPerBlock); - - return (dev->nFreeChunks > reservedChunks); -} - -static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve, - yaffs_BlockInfo **blockUsedPtr) -{ - int retVal; - yaffs_BlockInfo *bi; - - if (dev->allocationBlock < 0) { - /* Get next block to allocate off */ - dev->allocationBlock = yaffs_FindBlockForAllocation(dev); - dev->allocationPage = 0; - } - - if (!useReserve && !yaffs_CheckSpaceForAllocation(dev)) { - /* Not enough space to allocate unless we're allowed to use the reserve. */ - return -1; - } - - if (dev->nErasedBlocks < dev->nReservedBlocks - && dev->allocationPage == 0) { - T(YAFFS_TRACE_ALLOCATE, (TSTR("Allocating reserve" TENDSTR))); - } - - /* Next page please.... */ - if (dev->allocationBlock >= 0) { - bi = yaffs_GetBlockInfo(dev, dev->allocationBlock); - - retVal = (dev->allocationBlock * dev->nChunksPerBlock) + - dev->allocationPage; - bi->pagesInUse++; - yaffs_SetChunkBit(dev, dev->allocationBlock, - dev->allocationPage); - - dev->allocationPage++; - - dev->nFreeChunks--; - - /* If the block is full set the state to full */ - if (dev->allocationPage >= dev->nChunksPerBlock) { - bi->blockState = YAFFS_BLOCK_STATE_FULL; - dev->allocationBlock = -1; - } - - if (blockUsedPtr) - *blockUsedPtr = bi; - - return retVal; - } - - T(YAFFS_TRACE_ERROR, - (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR))); - - return -1; -} - -static int yaffs_GetErasedChunks(yaffs_Device *dev) -{ - int n; - - n = dev->nErasedBlocks * dev->nChunksPerBlock; - - if (dev->allocationBlock > 0) - n += (dev->nChunksPerBlock - dev->allocationPage); - - return n; - -} - -static int yaffs_GarbageCollectBlock(yaffs_Device *dev, int block, - int wholeBlock) -{ - int oldChunk; - int newChunk; - int markNAND; - int retVal = YAFFS_OK; - int cleanups = 0; - int i; - int isCheckpointBlock; - int matchingChunk; - int maxCopies; - - int chunksBefore = yaffs_GetErasedChunks(dev); - int chunksAfter; - - yaffs_ExtendedTags tags; - - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, block); - - yaffs_Object *object; - - isCheckpointBlock = (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT); - - - T(YAFFS_TRACE_TRACING, - (TSTR("Collecting block %d, in use %d, shrink %d, wholeBlock %d" TENDSTR), - block, - bi->pagesInUse, - bi->hasShrinkHeader, - wholeBlock)); - - /*yaffs_VerifyFreeChunks(dev); */ - - if(bi->blockState == YAFFS_BLOCK_STATE_FULL) - bi->blockState = YAFFS_BLOCK_STATE_COLLECTING; - - bi->hasShrinkHeader = 0; /* clear the flag so that the block can erase */ - - /* Take off the number of soft deleted entries because - * they're going to get really deleted during GC. - */ - if(dev->gcChunk == 0) /* first time through for this block */ - dev->nFreeChunks -= bi->softDeletions; - - dev->isDoingGC = 1; - - if (isCheckpointBlock || - !yaffs_StillSomeChunkBits(dev, block)) { - T(YAFFS_TRACE_TRACING, - (TSTR - ("Collecting block %d that has no chunks in use" TENDSTR), - block)); - yaffs_BlockBecameDirty(dev, block); - } else { - - __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); - - yaffs_VerifyBlock(dev, bi, block); - - maxCopies = (wholeBlock) ? dev->nChunksPerBlock : 10; - oldChunk = block * dev->nChunksPerBlock + dev->gcChunk; - - for (/* init already done */; - retVal == YAFFS_OK && - dev->gcChunk < dev->nChunksPerBlock && - (bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) && - maxCopies > 0; - dev->gcChunk++, oldChunk++) { - if (yaffs_CheckChunkBit(dev, block, dev->gcChunk)) { - - /* This page is in use and might need to be copied off */ - - maxCopies--; - - markNAND = 1; - - yaffs_InitialiseTags(&tags); - - yaffs_ReadChunkWithTagsFromNAND(dev, oldChunk, - buffer, &tags); - - object = - yaffs_FindObjectByNumber(dev, - tags.objectId); - - T(YAFFS_TRACE_GC_DETAIL, - (TSTR - ("Collecting chunk in block %d, %d %d %d " TENDSTR), - dev->gcChunk, tags.objectId, tags.chunkId, - tags.byteCount)); - - if (object && !yaffs_SkipVerification(dev)) { - if (tags.chunkId == 0) - matchingChunk = object->hdrChunk; - else if (object->softDeleted) - matchingChunk = oldChunk; /* Defeat the test */ - else - matchingChunk = yaffs_FindChunkInFile(object, tags.chunkId, NULL); - - if (oldChunk != matchingChunk) - T(YAFFS_TRACE_ERROR, - (TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR), - oldChunk, matchingChunk, tags.objectId, tags.chunkId)); - - } - - if (!object) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("page %d in gc has no object: %d %d %d " - TENDSTR), oldChunk, - tags.objectId, tags.chunkId, tags.byteCount)); - } - - if (object && - object->deleted && - object->softDeleted && - tags.chunkId != 0) { - /* Data chunk in a soft deleted file, throw it away - * It's a soft deleted data chunk, - * No need to copy this, just forget about it and - * fix up the object. - */ - - object->nDataChunks--; - - if (object->nDataChunks <= 0) { - /* remeber to clean up the object */ - dev->gcCleanupList[cleanups] = - tags.objectId; - cleanups++; - } - markNAND = 0; - } else if (0) { - /* Todo object && object->deleted && object->nDataChunks == 0 */ - /* Deleted object header with no data chunks. - * Can be discarded and the file deleted. - */ - object->hdrChunk = 0; - yaffs_FreeTnode(object->myDev, - object->variant. - fileVariant.top); - object->variant.fileVariant.top = NULL; - yaffs_DoGenericObjectDeletion(object); - - } else if (object) { - /* It's either a data chunk in a live file or - * an ObjectHeader, so we're interested in it. - * NB Need to keep the ObjectHeaders of deleted files - * until the whole file has been deleted off - */ - tags.serialNumber++; - - dev->nGCCopies++; - - if (tags.chunkId == 0) { - /* It is an object Id, - * We need to nuke the shrinkheader flags first - * We no longer want the shrinkHeader flag since its work is done - * and if it is left in place it will mess up scanning. - */ - - yaffs_ObjectHeader *oh; - oh = (yaffs_ObjectHeader *)buffer; - oh->isShrink = 0; - tags.extraIsShrinkHeader = 0; - - yaffs_VerifyObjectHeader(object, oh, &tags, 1); - } - - newChunk = - yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &tags, 1); - - if (newChunk < 0) { - retVal = YAFFS_FAIL; - } else { - - /* Ok, now fix up the Tnodes etc. */ - - if (tags.chunkId == 0) { - /* It's a header */ - object->hdrChunk = newChunk; - object->serial = tags.serialNumber; - } else { - /* It's a data chunk */ - yaffs_PutChunkIntoFile - (object, - tags.chunkId, - newChunk, 0); - } - } - } - - if (retVal == YAFFS_OK) - yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__); - - } - } - - yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); - - - /* Do any required cleanups */ - for (i = 0; i < cleanups; i++) { - /* Time to delete the file too */ - object = - yaffs_FindObjectByNumber(dev, - dev->gcCleanupList[i]); - if (object) { - yaffs_FreeTnode(dev, - object->variant.fileVariant. - top); - object->variant.fileVariant.top = NULL; - T(YAFFS_TRACE_GC, - (TSTR - ("yaffs: About to finally delete object %d" - TENDSTR), object->objectId)); - yaffs_DoGenericObjectDeletion(object); - object->myDev->nDeletedFiles--; - } - - } - - } - - yaffs_VerifyCollectedBlock(dev, bi, block); - - chunksAfter = yaffs_GetErasedChunks(dev); - if (chunksBefore >= chunksAfter) { - T(YAFFS_TRACE_GC, - (TSTR - ("gc did not increase free chunks before %d after %d" - TENDSTR), chunksBefore, chunksAfter)); - } - - /* If the gc completed then clear the current gcBlock so that we find another. */ - if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING) { - dev->gcBlock = -1; - dev->gcChunk = 0; - } - - dev->isDoingGC = 0; - - return retVal; -} - -/* New garbage collector - * If we're very low on erased blocks then we do aggressive garbage collection - * otherwise we do "leasurely" garbage collection. - * Aggressive gc looks further (whole array) and will accept less dirty blocks. - * Passive gc only inspects smaller areas and will only accept more dirty blocks. - * - * The idea is to help clear out space in a more spread-out manner. - * Dunno if it really does anything useful. - */ -static int yaffs_CheckGarbageCollection(yaffs_Device *dev) -{ - int block; - int aggressive; - int gcOk = YAFFS_OK; - int maxTries = 0; - - int checkpointBlockAdjust; - - if (dev->isDoingGC) { - /* Bail out so we don't get recursive gc */ - return YAFFS_OK; - } - - /* This loop should pass the first time. - * We'll only see looping here if the erase of the collected block fails. - */ - - do { - maxTries++; - - checkpointBlockAdjust = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint; - if (checkpointBlockAdjust < 0) - checkpointBlockAdjust = 0; - - if (dev->nErasedBlocks < (dev->nReservedBlocks + checkpointBlockAdjust + 2)) { - /* We need a block soon...*/ - aggressive = 1; - } else { - /* We're in no hurry */ - aggressive = 0; - } - - if (dev->gcBlock <= 0) { - dev->gcBlock = yaffs_FindBlockForGarbageCollection(dev, aggressive); - dev->gcChunk = 0; - } - - block = dev->gcBlock; - - if (block > 0) { - dev->garbageCollections++; - if (!aggressive) - dev->passiveGarbageCollections++; - - T(YAFFS_TRACE_GC, - (TSTR - ("yaffs: GC erasedBlocks %d aggressive %d" TENDSTR), - dev->nErasedBlocks, aggressive)); - - gcOk = yaffs_GarbageCollectBlock(dev, block, aggressive); - } - - if (dev->nErasedBlocks < (dev->nReservedBlocks) && block > 0) { - T(YAFFS_TRACE_GC, - (TSTR - ("yaffs: GC !!!no reclaim!!! erasedBlocks %d after try %d block %d" - TENDSTR), dev->nErasedBlocks, maxTries, block)); - } - } while ((dev->nErasedBlocks < dev->nReservedBlocks) && - (block > 0) && - (maxTries < 2)); - - return aggressive ? gcOk : YAFFS_OK; -} - -/*------------------------- TAGS --------------------------------*/ - -static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId, - int chunkInObject) -{ - return (tags->chunkId == chunkInObject && - tags->objectId == objectId && !tags->chunkDeleted) ? 1 : 0; - -} - - -/*-------------------- Data file manipulation -----------------*/ - -static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode, - yaffs_ExtendedTags *tags) -{ - /*Get the Tnode, then get the level 0 offset chunk offset */ - yaffs_Tnode *tn; - int theChunk = -1; - yaffs_ExtendedTags localTags; - int retVal = -1; - - yaffs_Device *dev = in->myDev; - - if (!tags) { - /* Passed a NULL, so use our own tags space */ - tags = &localTags; - } - - tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode); - - if (tn) { - theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); - - retVal = - yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId, - chunkInInode); - } - return retVal; -} - -static int yaffs_FindAndDeleteChunkInFile(yaffs_Object *in, int chunkInInode, - yaffs_ExtendedTags *tags) -{ - /* Get the Tnode, then get the level 0 offset chunk offset */ - yaffs_Tnode *tn; - int theChunk = -1; - yaffs_ExtendedTags localTags; - - yaffs_Device *dev = in->myDev; - int retVal = -1; - - if (!tags) { - /* Passed a NULL, so use our own tags space */ - tags = &localTags; - } - - tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode); - - if (tn) { - - theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); - - retVal = - yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId, - chunkInInode); - - /* Delete the entry in the filestructure (if found) */ - if (retVal != -1) - yaffs_LoadLevel0Tnode(dev, tn, chunkInInode, 0); - } - - return retVal; -} - -#ifdef YAFFS_PARANOID - -static int yaffs_CheckFileSanity(yaffs_Object *in) -{ - int chunk; - int nChunks; - int fSize; - int failed = 0; - int objId; - yaffs_Tnode *tn; - yaffs_Tags localTags; - yaffs_Tags *tags = &localTags; - int theChunk; - int chunkDeleted; - - if (in->variantType != YAFFS_OBJECT_TYPE_FILE) - return YAFFS_FAIL; - - objId = in->objectId; - fSize = in->variant.fileVariant.fileSize; - nChunks = - (fSize + in->myDev->nDataBytesPerChunk - 1) / in->myDev->nDataBytesPerChunk; - - for (chunk = 1; chunk <= nChunks; chunk++) { - tn = yaffs_FindLevel0Tnode(in->myDev, &in->variant.fileVariant, - chunk); - - if (tn) { - - theChunk = yaffs_GetChunkGroupBase(dev, tn, chunk); - - if (yaffs_CheckChunkBits - (dev, theChunk / dev->nChunksPerBlock, - theChunk % dev->nChunksPerBlock)) { - - yaffs_ReadChunkTagsFromNAND(in->myDev, theChunk, - tags, - &chunkDeleted); - if (yaffs_TagsMatch - (tags, in->objectId, chunk, chunkDeleted)) { - /* found it; */ - - } - } else { - - failed = 1; - } - - } else { - /* T(("No level 0 found for %d\n", chunk)); */ - } - } - - return failed ? YAFFS_FAIL : YAFFS_OK; -} - -#endif - -static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode, - int chunkInNAND, int inScan) -{ - /* NB inScan is zero unless scanning. - * For forward scanning, inScan is > 0; - * for backward scanning inScan is < 0 - * - * chunkInNAND = 0 is a dummy insert to make sure the tnodes are there. - */ - - yaffs_Tnode *tn; - yaffs_Device *dev = in->myDev; - int existingChunk; - yaffs_ExtendedTags existingTags; - yaffs_ExtendedTags newTags; - unsigned existingSerial, newSerial; - - if (in->variantType != YAFFS_OBJECT_TYPE_FILE) { - /* Just ignore an attempt at putting a chunk into a non-file during scanning - * If it is not during Scanning then something went wrong! - */ - if (!inScan) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("yaffs tragedy:attempt to put data chunk into a non-file" - TENDSTR))); - YBUG(); - } - - yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__); - return YAFFS_OK; - } - - tn = yaffs_AddOrFindLevel0Tnode(dev, - &in->variant.fileVariant, - chunkInInode, - NULL); - if (!tn) - return YAFFS_FAIL; - - if(!chunkInNAND) - /* Dummy insert, bail now */ - return YAFFS_OK; - - - existingChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); - - if (inScan != 0) { - /* If we're scanning then we need to test for duplicates - * NB This does not need to be efficient since it should only ever - * happen when the power fails during a write, then only one - * chunk should ever be affected. - * - * Correction for YAFFS2: This could happen quite a lot and we need to think about efficiency! TODO - * Update: For backward scanning we don't need to re-read tags so this is quite cheap. - */ - - if (existingChunk > 0) { - /* NB Right now existing chunk will not be real chunkId if the device >= 32MB - * thus we have to do a FindChunkInFile to get the real chunk id. - * - * We have a duplicate now we need to decide which one to use: - * - * Backwards scanning YAFFS2: The old one is what we use, dump the new one. - * Forward scanning YAFFS2: The new one is what we use, dump the old one. - * YAFFS1: Get both sets of tags and compare serial numbers. - */ - - if (inScan > 0) { - /* Only do this for forward scanning */ - yaffs_ReadChunkWithTagsFromNAND(dev, - chunkInNAND, - NULL, &newTags); - - /* Do a proper find */ - existingChunk = - yaffs_FindChunkInFile(in, chunkInInode, - &existingTags); - } - - if (existingChunk <= 0) { - /*Hoosterman - how did this happen? */ - - T(YAFFS_TRACE_ERROR, - (TSTR - ("yaffs tragedy: existing chunk < 0 in scan" - TENDSTR))); - - } - - /* NB The deleted flags should be false, otherwise the chunks will - * not be loaded during a scan - */ - - if (inScan > 0) { - newSerial = newTags.serialNumber; - existingSerial = existingTags.serialNumber; - } - - if ((inScan > 0) && - (in->myDev->isYaffs2 || - existingChunk <= 0 || - ((existingSerial + 1) & 3) == newSerial)) { - /* Forward scanning. - * Use new - * Delete the old one and drop through to update the tnode - */ - yaffs_DeleteChunk(dev, existingChunk, 1, - __LINE__); - } else { - /* Backward scanning or we want to use the existing one - * Use existing. - * Delete the new one and return early so that the tnode isn't changed - */ - yaffs_DeleteChunk(dev, chunkInNAND, 1, - __LINE__); - return YAFFS_OK; - } - } - - } - - if (existingChunk == 0) - in->nDataChunks++; - - yaffs_LoadLevel0Tnode(dev, tn, chunkInInode, chunkInNAND); - - return YAFFS_OK; -} - -static int yaffs_ReadChunkDataFromObject(yaffs_Object *in, int chunkInInode, - __u8 *buffer) -{ - int chunkInNAND = yaffs_FindChunkInFile(in, chunkInInode, NULL); - - if (chunkInNAND >= 0) - return yaffs_ReadChunkWithTagsFromNAND(in->myDev, chunkInNAND, - buffer, NULL); - else { - T(YAFFS_TRACE_NANDACCESS, - (TSTR("Chunk %d not found zero instead" TENDSTR), - chunkInNAND)); - /* get sane (zero) data if you read a hole */ - memset(buffer, 0, in->myDev->nDataBytesPerChunk); - return 0; - } - -} - -void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn) -{ - int block; - int page; - yaffs_ExtendedTags tags; - yaffs_BlockInfo *bi; - - if (chunkId <= 0) - return; - - dev->nDeletions++; - block = chunkId / dev->nChunksPerBlock; - page = chunkId % dev->nChunksPerBlock; - - - if (!yaffs_CheckChunkBit(dev, block, page)) - T(YAFFS_TRACE_VERIFY, - (TSTR("Deleting invalid chunk %d"TENDSTR), - chunkId)); - - bi = yaffs_GetBlockInfo(dev, block); - - T(YAFFS_TRACE_DELETION, - (TSTR("line %d delete of chunk %d" TENDSTR), lyn, chunkId)); - - if (markNAND && - bi->blockState != YAFFS_BLOCK_STATE_COLLECTING && !dev->isYaffs2) { - - yaffs_InitialiseTags(&tags); - - tags.chunkDeleted = 1; - - yaffs_WriteChunkWithTagsToNAND(dev, chunkId, NULL, &tags); - yaffs_HandleUpdateChunk(dev, chunkId, &tags); - } else { - dev->nUnmarkedDeletions++; - } - - /* Pull out of the management area. - * If the whole block became dirty, this will kick off an erasure. - */ - if (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING || - bi->blockState == YAFFS_BLOCK_STATE_FULL || - bi->blockState == YAFFS_BLOCK_STATE_NEEDS_SCANNING || - bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) { - dev->nFreeChunks++; - - yaffs_ClearChunkBit(dev, block, page); - - bi->pagesInUse--; - - if (bi->pagesInUse == 0 && - !bi->hasShrinkHeader && - bi->blockState != YAFFS_BLOCK_STATE_ALLOCATING && - bi->blockState != YAFFS_BLOCK_STATE_NEEDS_SCANNING) { - yaffs_BlockBecameDirty(dev, block); - } - - } - -} - -static int yaffs_WriteChunkDataToObject(yaffs_Object *in, int chunkInInode, - const __u8 *buffer, int nBytes, - int useReserve) -{ - /* Find old chunk Need to do this to get serial number - * Write new one and patch into tree. - * Invalidate old tags. - */ - - int prevChunkId; - yaffs_ExtendedTags prevTags; - - int newChunkId; - yaffs_ExtendedTags newTags; - - yaffs_Device *dev = in->myDev; - - yaffs_CheckGarbageCollection(dev); - - /* Get the previous chunk at this location in the file if it exists */ - prevChunkId = yaffs_FindChunkInFile(in, chunkInInode, &prevTags); - - /* Set up new tags */ - yaffs_InitialiseTags(&newTags); - - newTags.chunkId = chunkInInode; - newTags.objectId = in->objectId; - newTags.serialNumber = - (prevChunkId > 0) ? prevTags.serialNumber + 1 : 1; - newTags.byteCount = nBytes; - - if (nBytes < 1 || nBytes > dev->totalBytesPerChunk) { - T(YAFFS_TRACE_ERROR, - (TSTR("Writing %d bytes to chunk!!!!!!!!!" TENDSTR), nBytes)); - YBUG(); - } - - /* - * If there isn't already a chunk there then do a dummy - * insert to make sue we have the desired tnode structure. - */ - if(prevChunkId < 1 && - yaffs_PutChunkIntoFile(in, chunkInInode, 0, 0) != YAFFS_OK) - return -1; - - newChunkId = - yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags, - useReserve); - - if (newChunkId > 0) { - yaffs_PutChunkIntoFile(in, chunkInInode, newChunkId, 0); - - if (prevChunkId > 0) - yaffs_DeleteChunk(dev, prevChunkId, 1, __LINE__); - - yaffs_CheckFileSanity(in); - } - return newChunkId; - -} - -/* UpdateObjectHeader updates the header on NAND for an object. - * If name is not NULL, then that new name is used. - */ -int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, int force, - int isShrink, int shadows) -{ - - yaffs_BlockInfo *bi; - - yaffs_Device *dev = in->myDev; - - int prevChunkId; - int retVal = 0; - int result = 0; - - int newChunkId; - yaffs_ExtendedTags newTags; - yaffs_ExtendedTags oldTags; - - __u8 *buffer = NULL; - YCHAR oldName[YAFFS_MAX_NAME_LENGTH + 1]; - - yaffs_ObjectHeader *oh = NULL; - - yaffs_strcpy(oldName, _Y("silly old name")); - - - if (!in->fake || - in == dev->rootDir || /* The rootDir should also be saved */ - force) { - - yaffs_CheckGarbageCollection(dev); - yaffs_CheckObjectDetailsLoaded(in); - - buffer = yaffs_GetTempBuffer(in->myDev, __LINE__); - oh = (yaffs_ObjectHeader *) buffer; - - prevChunkId = in->hdrChunk; - - if (prevChunkId > 0) { - result = yaffs_ReadChunkWithTagsFromNAND(dev, prevChunkId, - buffer, &oldTags); - - yaffs_VerifyObjectHeader(in, oh, &oldTags, 0); - - memcpy(oldName, oh->name, sizeof(oh->name)); - } - - memset(buffer, 0xFF, dev->nDataBytesPerChunk); - - oh->type = in->variantType; - oh->yst_mode = in->yst_mode; - oh->shadowsObject = oh->inbandShadowsObject = shadows; - -#ifdef CONFIG_YAFFS_WINCE - oh->win_atime[0] = in->win_atime[0]; - oh->win_ctime[0] = in->win_ctime[0]; - oh->win_mtime[0] = in->win_mtime[0]; - oh->win_atime[1] = in->win_atime[1]; - oh->win_ctime[1] = in->win_ctime[1]; - oh->win_mtime[1] = in->win_mtime[1]; -#else - oh->yst_uid = in->yst_uid; - oh->yst_gid = in->yst_gid; - oh->yst_atime = in->yst_atime; - oh->yst_mtime = in->yst_mtime; - oh->yst_ctime = in->yst_ctime; - oh->yst_rdev = in->yst_rdev; -#endif - if (in->parent) - oh->parentObjectId = in->parent->objectId; - else - oh->parentObjectId = 0; - - if (name && *name) { - memset(oh->name, 0, sizeof(oh->name)); - yaffs_strncpy(oh->name, name, YAFFS_MAX_NAME_LENGTH); - } else if (prevChunkId > 0) - memcpy(oh->name, oldName, sizeof(oh->name)); - else - memset(oh->name, 0, sizeof(oh->name)); - - oh->isShrink = isShrink; - - switch (in->variantType) { - case YAFFS_OBJECT_TYPE_UNKNOWN: - /* Should not happen */ - break; - case YAFFS_OBJECT_TYPE_FILE: - oh->fileSize = - (oh->parentObjectId == YAFFS_OBJECTID_DELETED - || oh->parentObjectId == - YAFFS_OBJECTID_UNLINKED) ? 0 : in->variant. - fileVariant.fileSize; - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - oh->equivalentObjectId = - in->variant.hardLinkVariant.equivalentObjectId; - break; - case YAFFS_OBJECT_TYPE_SPECIAL: - /* Do nothing */ - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - /* Do nothing */ - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - yaffs_strncpy(oh->alias, - in->variant.symLinkVariant.alias, - YAFFS_MAX_ALIAS_LENGTH); - oh->alias[YAFFS_MAX_ALIAS_LENGTH] = 0; - break; - } - - /* Tags */ - yaffs_InitialiseTags(&newTags); - in->serial++; - newTags.chunkId = 0; - newTags.objectId = in->objectId; - newTags.serialNumber = in->serial; - - /* Add extra info for file header */ - - newTags.extraHeaderInfoAvailable = 1; - newTags.extraParentObjectId = oh->parentObjectId; - newTags.extraFileLength = oh->fileSize; - newTags.extraIsShrinkHeader = oh->isShrink; - newTags.extraEquivalentObjectId = oh->equivalentObjectId; - newTags.extraShadows = (oh->shadowsObject > 0) ? 1 : 0; - newTags.extraObjectType = in->variantType; - - yaffs_VerifyObjectHeader(in, oh, &newTags, 1); - - /* Create new chunk in NAND */ - newChunkId = - yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags, - (prevChunkId > 0) ? 1 : 0); - - if (newChunkId >= 0) { - - in->hdrChunk = newChunkId; - - if (prevChunkId > 0) { - yaffs_DeleteChunk(dev, prevChunkId, 1, - __LINE__); - } - - if (!yaffs_ObjectHasCachedWriteData(in)) - in->dirty = 0; - - /* If this was a shrink, then mark the block that the chunk lives on */ - if (isShrink) { - bi = yaffs_GetBlockInfo(in->myDev, - newChunkId / in->myDev->nChunksPerBlock); - bi->hasShrinkHeader = 1; - } - - } - - retVal = newChunkId; - - } - - if (buffer) - yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); - - return retVal; -} - -/*------------------------ Short Operations Cache ---------------------------------------- - * In many situations where there is no high level buffering (eg WinCE) a lot of - * reads might be short sequential reads, and a lot of writes may be short - * sequential writes. eg. scanning/writing a jpeg file. - * In these cases, a short read/write cache can provide a huge perfomance benefit - * with dumb-as-a-rock code. - * In Linux, the page cache provides read buffering aand the short op cache provides write - * buffering. - * - * There are a limited number (~10) of cache chunks per device so that we don't - * need a very intelligent search. - */ - -static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj) -{ - yaffs_Device *dev = obj->myDev; - int i; - yaffs_ChunkCache *cache; - int nCaches = obj->myDev->nShortOpCaches; - - for (i = 0; i < nCaches; i++) { - cache = &dev->srCache[i]; - if (cache->object == obj && - cache->dirty) - return 1; - } - - return 0; -} - - -static void yaffs_FlushFilesChunkCache(yaffs_Object *obj) -{ - yaffs_Device *dev = obj->myDev; - int lowest = -99; /* Stop compiler whining. */ - int i; - yaffs_ChunkCache *cache; - int chunkWritten = 0; - int nCaches = obj->myDev->nShortOpCaches; - - if (nCaches > 0) { - do { - cache = NULL; - - /* Find the dirty cache for this object with the lowest chunk id. */ - for (i = 0; i < nCaches; i++) { - if (dev->srCache[i].object == obj && - dev->srCache[i].dirty) { - if (!cache - || dev->srCache[i].chunkId < - lowest) { - cache = &dev->srCache[i]; - lowest = cache->chunkId; - } - } - } - - if (cache && !cache->locked) { - /* Write it out and free it up */ - - chunkWritten = - yaffs_WriteChunkDataToObject(cache->object, - cache->chunkId, - cache->data, - cache->nBytes, - 1); - cache->dirty = 0; - cache->object = NULL; - } - - } while (cache && chunkWritten > 0); - - if (cache) { - /* Hoosterman, disk full while writing cache out. */ - T(YAFFS_TRACE_ERROR, - (TSTR("yaffs tragedy: no space during cache write" TENDSTR))); - - } - } - -} - -/*yaffs_FlushEntireDeviceCache(dev) - * - * - */ - -void yaffs_FlushEntireDeviceCache(yaffs_Device *dev) -{ - yaffs_Object *obj; - int nCaches = dev->nShortOpCaches; - int i; - - /* Find a dirty object in the cache and flush it... - * until there are no further dirty objects. - */ - do { - obj = NULL; - for (i = 0; i < nCaches && !obj; i++) { - if (dev->srCache[i].object && - dev->srCache[i].dirty) - obj = dev->srCache[i].object; - - } - if (obj) - yaffs_FlushFilesChunkCache(obj); - - } while (obj); - -} - - -/* Grab us a cache chunk for use. - * First look for an empty one. - * Then look for the least recently used non-dirty one. - * Then look for the least recently used dirty one...., flush and look again. - */ -static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device *dev) -{ - int i; - - if (dev->nShortOpCaches > 0) { - for (i = 0; i < dev->nShortOpCaches; i++) { - if (!dev->srCache[i].object) - return &dev->srCache[i]; - } - } - - return NULL; -} - -static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device *dev) -{ - yaffs_ChunkCache *cache; - yaffs_Object *theObj; - int usage; - int i; - int pushout; - - if (dev->nShortOpCaches > 0) { - /* Try find a non-dirty one... */ - - cache = yaffs_GrabChunkCacheWorker(dev); - - if (!cache) { - /* They were all dirty, find the last recently used object and flush - * its cache, then find again. - * NB what's here is not very accurate, we actually flush the object - * the last recently used page. - */ - - /* With locking we can't assume we can use entry zero */ - - theObj = NULL; - usage = -1; - cache = NULL; - pushout = -1; - - for (i = 0; i < dev->nShortOpCaches; i++) { - if (dev->srCache[i].object && - !dev->srCache[i].locked && - (dev->srCache[i].lastUse < usage || !cache)) { - usage = dev->srCache[i].lastUse; - theObj = dev->srCache[i].object; - cache = &dev->srCache[i]; - pushout = i; - } - } - - if (!cache || cache->dirty) { - /* Flush and try again */ - yaffs_FlushFilesChunkCache(theObj); - cache = yaffs_GrabChunkCacheWorker(dev); - } - - } - return cache; - } else - return NULL; - -} - -/* Find a cached chunk */ -static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object *obj, - int chunkId) -{ - yaffs_Device *dev = obj->myDev; - int i; - if (dev->nShortOpCaches > 0) { - for (i = 0; i < dev->nShortOpCaches; i++) { - if (dev->srCache[i].object == obj && - dev->srCache[i].chunkId == chunkId) { - dev->cacheHits++; - - return &dev->srCache[i]; - } - } - } - return NULL; -} - -/* Mark the chunk for the least recently used algorithym */ -static void yaffs_UseChunkCache(yaffs_Device *dev, yaffs_ChunkCache *cache, - int isAWrite) -{ - - if (dev->nShortOpCaches > 0) { - if (dev->srLastUse < 0 || dev->srLastUse > 100000000) { - /* Reset the cache usages */ - int i; - for (i = 1; i < dev->nShortOpCaches; i++) - dev->srCache[i].lastUse = 0; - - dev->srLastUse = 0; - } - - dev->srLastUse++; - - cache->lastUse = dev->srLastUse; - - if (isAWrite) - cache->dirty = 1; - } -} - -/* Invalidate a single cache page. - * Do this when a whole page gets written, - * ie the short cache for this page is no longer valid. - */ -static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId) -{ - if (object->myDev->nShortOpCaches > 0) { - yaffs_ChunkCache *cache = yaffs_FindChunkCache(object, chunkId); - - if (cache) - cache->object = NULL; - } -} - -/* Invalidate all the cache pages associated with this object - * Do this whenever ther file is deleted or resized. - */ -static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in) -{ - int i; - yaffs_Device *dev = in->myDev; - - if (dev->nShortOpCaches > 0) { - /* Invalidate it. */ - for (i = 0; i < dev->nShortOpCaches; i++) { - if (dev->srCache[i].object == in) - dev->srCache[i].object = NULL; - } - } -} - -/*--------------------- Checkpointing --------------------*/ - -#ifdef CYGSEM_FS_YAFFS_OMIT_YAFFS2_CODE -#else -static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev, int head) -{ - yaffs_CheckpointValidity cp; - - memset(&cp, 0, sizeof(cp)); - - cp.structType = sizeof(cp); - cp.magic = YAFFS_MAGIC; - cp.version = YAFFS_CHECKPOINT_VERSION; - cp.head = (head) ? 1 : 0; - - return (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)) ? - 1 : 0; -} - -static int yaffs_ReadCheckpointValidityMarker(yaffs_Device *dev, int head) -{ - yaffs_CheckpointValidity cp; - int ok; - - ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); - - if (ok) - ok = (cp.structType == sizeof(cp)) && - (cp.magic == YAFFS_MAGIC) && - (cp.version == YAFFS_CHECKPOINT_VERSION) && - (cp.head == ((head) ? 1 : 0)); - return ok ? 1 : 0; -} - -static void yaffs_DeviceToCheckpointDevice(yaffs_CheckpointDevice *cp, - yaffs_Device *dev) -{ - cp->nErasedBlocks = dev->nErasedBlocks; - cp->allocationBlock = dev->allocationBlock; - cp->allocationPage = dev->allocationPage; - cp->nFreeChunks = dev->nFreeChunks; - - cp->nDeletedFiles = dev->nDeletedFiles; - cp->nUnlinkedFiles = dev->nUnlinkedFiles; - cp->nBackgroundDeletions = dev->nBackgroundDeletions; - cp->sequenceNumber = dev->sequenceNumber; - cp->oldestDirtySequence = dev->oldestDirtySequence; - -} - -static void yaffs_CheckpointDeviceToDevice(yaffs_Device *dev, - yaffs_CheckpointDevice *cp) -{ - dev->nErasedBlocks = cp->nErasedBlocks; - dev->allocationBlock = cp->allocationBlock; - dev->allocationPage = cp->allocationPage; - dev->nFreeChunks = cp->nFreeChunks; - - dev->nDeletedFiles = cp->nDeletedFiles; - dev->nUnlinkedFiles = cp->nUnlinkedFiles; - dev->nBackgroundDeletions = cp->nBackgroundDeletions; - dev->sequenceNumber = cp->sequenceNumber; - dev->oldestDirtySequence = cp->oldestDirtySequence; -} - - -static int yaffs_WriteCheckpointDevice(yaffs_Device *dev) -{ - yaffs_CheckpointDevice cp; - __u32 nBytes; - __u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1); - - int ok; - - /* Write device runtime values*/ - yaffs_DeviceToCheckpointDevice(&cp, dev); - cp.structType = sizeof(cp); - - ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); - - /* Write block info */ - if (ok) { - nBytes = nBlocks * sizeof(yaffs_BlockInfo); - ok = (yaffs_CheckpointWrite(dev, dev->blockInfo, nBytes) == nBytes); - } - - /* Write chunk bits */ - if (ok) { - nBytes = nBlocks * dev->chunkBitmapStride; - ok = (yaffs_CheckpointWrite(dev, dev->chunkBits, nBytes) == nBytes); - } - return ok ? 1 : 0; - -} - -static int yaffs_ReadCheckpointDevice(yaffs_Device *dev) -{ - yaffs_CheckpointDevice cp; - __u32 nBytes; - __u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1); - - int ok; - - ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); - if (!ok) - return 0; - - if (cp.structType != sizeof(cp)) - return 0; - - - yaffs_CheckpointDeviceToDevice(dev, &cp); - - nBytes = nBlocks * sizeof(yaffs_BlockInfo); - - ok = (yaffs_CheckpointRead(dev, dev->blockInfo, nBytes) == nBytes); - - if (!ok) - return 0; - nBytes = nBlocks * dev->chunkBitmapStride; - - ok = (yaffs_CheckpointRead(dev, dev->chunkBits, nBytes) == nBytes); - - return ok ? 1 : 0; -} - -static void yaffs_ObjectToCheckpointObject(yaffs_CheckpointObject *cp, - yaffs_Object *obj) -{ - - cp->objectId = obj->objectId; - cp->parentId = (obj->parent) ? obj->parent->objectId : 0; - cp->hdrChunk = obj->hdrChunk; - cp->variantType = obj->variantType; - cp->deleted = obj->deleted; - cp->softDeleted = obj->softDeleted; - cp->unlinked = obj->unlinked; - cp->fake = obj->fake; - cp->renameAllowed = obj->renameAllowed; - cp->unlinkAllowed = obj->unlinkAllowed; - cp->serial = obj->serial; - cp->nDataChunks = obj->nDataChunks; - - if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) - cp->fileSizeOrEquivalentObjectId = obj->variant.fileVariant.fileSize; - else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) - cp->fileSizeOrEquivalentObjectId = obj->variant.hardLinkVariant.equivalentObjectId; -} - -static int yaffs_CheckpointObjectToObject(yaffs_Object *obj, yaffs_CheckpointObject *cp) -{ - - yaffs_Object *parent; - - if (obj->variantType != cp->variantType) { - T(YAFFS_TRACE_ERROR, (TSTR("Checkpoint read object %d type %d " - TCONT("chunk %d does not match existing object type %d") - TENDSTR), cp->objectId, cp->variantType, cp->hdrChunk, - obj->variantType)); - return 0; - } - - obj->objectId = cp->objectId; - - if (cp->parentId) - parent = yaffs_FindOrCreateObjectByNumber( - obj->myDev, - cp->parentId, - YAFFS_OBJECT_TYPE_DIRECTORY); - else - parent = NULL; - - if (parent) { - if (parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, (TSTR("Checkpoint read object %d parent %d type %d" - TCONT(" chunk %d Parent type, %d, not directory") - TENDSTR), - cp->objectId, cp->parentId, cp->variantType, - cp->hdrChunk, parent->variantType)); - return 0; - } - yaffs_AddObjectToDirectory(parent, obj); - } - - obj->hdrChunk = cp->hdrChunk; - obj->variantType = cp->variantType; - obj->deleted = cp->deleted; - obj->softDeleted = cp->softDeleted; - obj->unlinked = cp->unlinked; - obj->fake = cp->fake; - obj->renameAllowed = cp->renameAllowed; - obj->unlinkAllowed = cp->unlinkAllowed; - obj->serial = cp->serial; - obj->nDataChunks = cp->nDataChunks; - - if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) - obj->variant.fileVariant.fileSize = cp->fileSizeOrEquivalentObjectId; - else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) - obj->variant.hardLinkVariant.equivalentObjectId = cp->fileSizeOrEquivalentObjectId; - - if (obj->hdrChunk > 0) - obj->lazyLoaded = 1; - return 1; -} - - - -static int yaffs_CheckpointTnodeWorker(yaffs_Object *in, yaffs_Tnode *tn, - __u32 level, int chunkOffset) -{ - int i; - yaffs_Device *dev = in->myDev; - int ok = 1; - int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - - if (tnodeSize < sizeof(yaffs_Tnode)) - tnodeSize = sizeof(yaffs_Tnode); - - - if (tn) { - if (level > 0) { - - for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { - if (tn->internal[i]) { - ok = yaffs_CheckpointTnodeWorker(in, - tn->internal[i], - level - 1, - (chunkOffset<<YAFFS_TNODES_INTERNAL_BITS) + i); - } - } - } else if (level == 0) { - __u32 baseOffset = chunkOffset << YAFFS_TNODES_LEVEL0_BITS; - ok = (yaffs_CheckpointWrite(dev, &baseOffset, sizeof(baseOffset)) == sizeof(baseOffset)); - if (ok) - ok = (yaffs_CheckpointWrite(dev, tn, tnodeSize) == tnodeSize); - } - } - - return ok; - -} - -static int yaffs_WriteCheckpointTnodes(yaffs_Object *obj) -{ - __u32 endMarker = ~0; - int ok = 1; - - if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) { - ok = yaffs_CheckpointTnodeWorker(obj, - obj->variant.fileVariant.top, - obj->variant.fileVariant.topLevel, - 0); - if (ok) - ok = (yaffs_CheckpointWrite(obj->myDev, &endMarker, sizeof(endMarker)) == - sizeof(endMarker)); - } - - return ok ? 1 : 0; -} - -static int yaffs_ReadCheckpointTnodes(yaffs_Object *obj) -{ - __u32 baseChunk; - int ok = 1; - yaffs_Device *dev = obj->myDev; - yaffs_FileStructure *fileStructPtr = &obj->variant.fileVariant; - yaffs_Tnode *tn; - int nread = 0; - int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - - if (tnodeSize < sizeof(yaffs_Tnode)) - tnodeSize = sizeof(yaffs_Tnode); - - ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk)); - - while (ok && (~baseChunk)) { - nread++; - /* Read level 0 tnode */ - - - tn = yaffs_GetTnodeRaw(dev); - if (tn) - ok = (yaffs_CheckpointRead(dev, tn, tnodeSize) == tnodeSize); - else - ok = 0; - - if (tn && ok) - ok = yaffs_AddOrFindLevel0Tnode(dev, - fileStructPtr, - baseChunk, - tn) ? 1 : 0; - - if (ok) - ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk)); - - } - - T(YAFFS_TRACE_CHECKPOINT, ( - TSTR("Checkpoint read tnodes %d records, last %d. ok %d" TENDSTR), - nread, baseChunk, ok)); - - return ok ? 1 : 0; -} - - -static int yaffs_WriteCheckpointObjects(yaffs_Device *dev) -{ - yaffs_Object *obj; - yaffs_CheckpointObject cp; - int i; - int ok = 1; - struct ylist_head *lh; - - - /* Iterate through the objects in each hash entry, - * dumping them to the checkpointing stream. - */ - - for (i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++) { - ylist_for_each(lh, &dev->objectBucket[i].list) { - if (lh) { - obj = ylist_entry(lh, yaffs_Object, hashLink); - if (!obj->deferedFree) { - yaffs_ObjectToCheckpointObject(&cp, obj); - cp.structType = sizeof(cp); - - T(YAFFS_TRACE_CHECKPOINT, ( - TSTR("Checkpoint write object %d parent %d type %d chunk %d obj addr %x" TENDSTR), - cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk, (unsigned) obj)); - - ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); - - if (ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE) - ok = yaffs_WriteCheckpointTnodes(obj); - } - } - } - } - - /* Dump end of list */ - memset(&cp, 0xFF, sizeof(yaffs_CheckpointObject)); - cp.structType = sizeof(cp); - - if (ok) - ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); - - return ok ? 1 : 0; -} - -static int yaffs_ReadCheckpointObjects(yaffs_Device *dev) -{ - yaffs_Object *obj; - yaffs_CheckpointObject cp; - int ok = 1; - int done = 0; - yaffs_Object *hardList = NULL; - - while (ok && !done) { - ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); - if (cp.structType != sizeof(cp)) { - T(YAFFS_TRACE_CHECKPOINT, (TSTR("struct size %d instead of %u ok %d"TENDSTR), - cp.structType, (unsigned)(sizeof(cp)), ok)); - ok = 0; - } - - T(YAFFS_TRACE_CHECKPOINT, (TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR), - cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk)); - - if (ok && cp.objectId == ~0) - done = 1; - else if (ok) { - obj = yaffs_FindOrCreateObjectByNumber(dev, cp.objectId, cp.variantType); - if (obj) { - ok = yaffs_CheckpointObjectToObject(obj, &cp); - if (!ok) - break; - if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) { - ok = yaffs_ReadCheckpointTnodes(obj); - } else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { - obj->hardLinks.next = - (struct ylist_head *) hardList; - hardList = obj; - } - } else - ok = 0; - } - } - - if (ok) - yaffs_HardlinkFixup(dev, hardList); - - return ok ? 1 : 0; -} - -static int yaffs_WriteCheckpointSum(yaffs_Device *dev) -{ - __u32 checkpointSum; - int ok; - - yaffs_GetCheckpointSum(dev, &checkpointSum); - - ok = (yaffs_CheckpointWrite(dev, &checkpointSum, sizeof(checkpointSum)) == sizeof(checkpointSum)); - - if (!ok) - return 0; - - return 1; -} - -static int yaffs_ReadCheckpointSum(yaffs_Device *dev) -{ - __u32 checkpointSum0; - __u32 checkpointSum1; - int ok; - - yaffs_GetCheckpointSum(dev, &checkpointSum0); - - ok = (yaffs_CheckpointRead(dev, &checkpointSum1, sizeof(checkpointSum1)) == sizeof(checkpointSum1)); - - if (!ok) - return 0; - - if (checkpointSum0 != checkpointSum1) - return 0; - - return 1; -} - -static int yaffs_WriteCheckpointData(yaffs_Device *dev) -{ - int ok = 1; - - if (dev->skipCheckpointWrite || !dev->isYaffs2) { - T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint write" TENDSTR))); - ok = 0; - } - if (ok) - ok = yaffs_CheckpointOpen(dev, 1); - - if (ok) { - T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR))); - ok = yaffs_WriteCheckpointValidityMarker(dev, 1); - } - if (ok) { - T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint device" TENDSTR))); - ok = yaffs_WriteCheckpointDevice(dev); - } - if (ok) { - T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint objects" TENDSTR))); - ok = yaffs_WriteCheckpointObjects(dev); - } - if (ok) { - T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR))); - ok = yaffs_WriteCheckpointValidityMarker(dev, 0); - } - - if (ok) - ok = yaffs_WriteCheckpointSum(dev); - - if (!yaffs_CheckpointClose(dev)) - ok = 0; - - if (ok) - dev->isCheckpointed = 1; - else - dev->isCheckpointed = 0; - - return dev->isCheckpointed; -} - -static int yaffs_ReadCheckpointData(yaffs_Device *dev) -{ - int ok = 1; - - if (dev->skipCheckpointRead || !dev->isYaffs2) { - T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint read" TENDSTR))); - ok = 0; - } - - if (ok) - ok = yaffs_CheckpointOpen(dev, 0); /* open for read */ - - if (ok) { - T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR))); - ok = yaffs_ReadCheckpointValidityMarker(dev, 1); - } - if (ok) { - T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint device" TENDSTR))); - ok = yaffs_ReadCheckpointDevice(dev); - } - if (ok) { - T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint objects" TENDSTR))); - ok = yaffs_ReadCheckpointObjects(dev); - } - if (ok) { - T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR))); - ok = yaffs_ReadCheckpointValidityMarker(dev, 0); - } - - if (ok) { - ok = yaffs_ReadCheckpointSum(dev); - T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint checksum %d" TENDSTR), ok)); - } - - if (!yaffs_CheckpointClose(dev)) - ok = 0; - - if (ok) - dev->isCheckpointed = 1; - else - dev->isCheckpointed = 0; - - return ok ? 1 : 0; - -} -#endif // !OMIT_YAFFS2_CODE - -static void yaffs_InvalidateCheckpoint(yaffs_Device *dev) -{ - if (dev->isCheckpointed || - dev->blocksInCheckpoint > 0) { - dev->isCheckpointed = 0; - yaffs_CheckpointInvalidateStream(dev); - if (dev->superBlock && dev->markSuperBlockDirty) - dev->markSuperBlockDirty(dev->superBlock); - } -} - - -int yaffs_CheckpointSave(yaffs_Device *dev) -{ - T(YAFFS_TRACE_CHECKPOINT, (TSTR("save entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); - - yaffs_VerifyObjects(dev); - yaffs_VerifyBlocks(dev); - yaffs_VerifyFreeChunks(dev); - - if (!dev->isCheckpointed) { - yaffs_InvalidateCheckpoint(dev); -#ifdef CYGSEM_FS_YAFFS_OMIT_YAFFS2_CODE -#else - yaffs_WriteCheckpointData(dev); -#endif - } - - T(YAFFS_TRACE_ALWAYS, (TSTR("save exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); - - return dev->isCheckpointed; -} - -#ifdef CYGSEM_FS_YAFFS_OMIT_YAFFS2_CODE -#else -int yaffs_CheckpointRestore(yaffs_Device *dev) -{ - int retval; - T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); - - retval = yaffs_ReadCheckpointData(dev); - - if (dev->isCheckpointed) { - yaffs_VerifyObjects(dev); - yaffs_VerifyBlocks(dev); - yaffs_VerifyFreeChunks(dev); - } - - T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); - - return retval; -} -#endif - -/*--------------------- File read/write ------------------------ - * Read and write have very similar structures. - * In general the read/write has three parts to it - * An incomplete chunk to start with (if the read/write is not chunk-aligned) - * Some complete chunks - * An incomplete chunk to end off with - * - * Curve-balls: the first chunk might also be the last chunk. - */ - -int yaffs_ReadDataFromFile(yaffs_Object *in, __u8 *buffer, loff_t offset, - int nBytes) -{ - - int chunk; - __u32 start; - int nToCopy; - int n = nBytes; - int nDone = 0; - yaffs_ChunkCache *cache; - - yaffs_Device *dev; - - dev = in->myDev; - - while (n > 0) { - /* chunk = offset / dev->nDataBytesPerChunk + 1; */ - /* start = offset % dev->nDataBytesPerChunk; */ - yaffs_AddrToChunk(dev, offset, &chunk, &start); - chunk++; - - /* OK now check for the curveball where the start and end are in - * the same chunk. - */ - if ((start + n) < dev->nDataBytesPerChunk) - nToCopy = n; - else - nToCopy = dev->nDataBytesPerChunk - start; - - cache = yaffs_FindChunkCache(in, chunk); - - /* If the chunk is already in the cache or it is less than a whole chunk - * or we're using inband tags then use the cache (if there is caching) - * else bypass the cache. - */ - if (cache || nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) { - if (dev->nShortOpCaches > 0) { - - /* If we can't find the data in the cache, then load it up. */ - - if (!cache) { - cache = yaffs_GrabChunkCache(in->myDev); - cache->object = in; - cache->chunkId = chunk; - cache->dirty = 0; - cache->locked = 0; - yaffs_ReadChunkDataFromObject(in, chunk, - cache-> - data); - cache->nBytes = 0; - } - - yaffs_UseChunkCache(dev, cache, 0); - - cache->locked = 1; - - - memcpy(buffer, &cache->data[start], nToCopy); - - cache->locked = 0; - } else { - /* Read into the local buffer then copy..*/ - - __u8 *localBuffer = - yaffs_GetTempBuffer(dev, __LINE__); - yaffs_ReadChunkDataFromObject(in, chunk, - localBuffer); - - memcpy(buffer, &localBuffer[start], nToCopy); - - - yaffs_ReleaseTempBuffer(dev, localBuffer, - __LINE__); - } - - } else { - - /* A full chunk. Read directly into the supplied buffer. */ - yaffs_ReadChunkDataFromObject(in, chunk, buffer); - - } - - n -= nToCopy; - offset += nToCopy; - buffer += nToCopy; - nDone += nToCopy; - - } - - return nDone; -} - -int yaffs_WriteDataToFile(yaffs_Object *in, const __u8 *buffer, loff_t offset, - int nBytes, int writeThrough) -{ - - int chunk; - __u32 start; - int nToCopy; - int n = nBytes; - int nDone = 0; - int nToWriteBack; - int startOfWrite = offset; - int chunkWritten = 0; - __u32 nBytesRead; - __u32 chunkStart; - - yaffs_Device *dev; - - dev = in->myDev; - - while (n > 0 && chunkWritten >= 0) { - /* chunk = offset / dev->nDataBytesPerChunk + 1; */ - /* start = offset % dev->nDataBytesPerChunk; */ - yaffs_AddrToChunk(dev, offset, &chunk, &start); - - if (chunk * dev->nDataBytesPerChunk + start != offset || - start >= dev->nDataBytesPerChunk) { - T(YAFFS_TRACE_ERROR, ( - TSTR("AddrToChunk of offset %d gives chunk %d start %d" - TENDSTR), - (int)offset, chunk, start)); - } - chunk++; - - /* OK now check for the curveball where the start and end are in - * the same chunk. - */ - - if ((start + n) < dev->nDataBytesPerChunk) { - nToCopy = n; - - /* Now folks, to calculate how many bytes to write back.... - * If we're overwriting and not writing to then end of file then - * we need to write back as much as was there before. - */ - - chunkStart = ((chunk - 1) * dev->nDataBytesPerChunk); - - if (chunkStart > in->variant.fileVariant.fileSize) - nBytesRead = 0; /* Past end of file */ - else - nBytesRead = in->variant.fileVariant.fileSize - chunkStart; - - if (nBytesRead > dev->nDataBytesPerChunk) - nBytesRead = dev->nDataBytesPerChunk; - - nToWriteBack = - (nBytesRead > - (start + n)) ? nBytesRead : (start + n); - - if (nToWriteBack < 0 || nToWriteBack > dev->nDataBytesPerChunk) - YBUG(); - - } else { - nToCopy = dev->nDataBytesPerChunk - start; - nToWriteBack = dev->nDataBytesPerChunk; - } - - if (nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) { - /* An incomplete start or end chunk (or maybe both start and end chunk), - * or we're using inband tags, so we want to use the cache buffers. - */ - if (dev->nShortOpCaches > 0) { - yaffs_ChunkCache *cache; - /* If we can't find the data in the cache, then load the cache */ - cache = yaffs_FindChunkCache(in, chunk); - - if (!cache - && yaffs_CheckSpaceForAllocation(in-> - myDev)) { - cache = yaffs_GrabChunkCache(in->myDev); - cache->object = in; - cache->chunkId = chunk; - cache->dirty = 0; - cache->locked = 0; - yaffs_ReadChunkDataFromObject(in, chunk, - cache-> - data); - } else if (cache && - !cache->dirty && - !yaffs_CheckSpaceForAllocation(in->myDev)) { - /* Drop the cache if it was a read cache item and - * no space check has been made for it. - */ - cache = NULL; - } - - if (cache) { - yaffs_UseChunkCache(dev, cache, 1); - cache->locked = 1; - - - memcpy(&cache->data[start], buffer, - nToCopy); - - - cache->locked = 0; - cache->nBytes = nToWriteBack; - - if (writeThrough) { - chunkWritten = - yaffs_WriteChunkDataToObject - (cache->object, - cache->chunkId, - cache->data, cache->nBytes, - 1); - cache->dirty = 0; - } - - } else { - chunkWritten = -1; /* fail the write */ - } - } else { - /* An incomplete start or end chunk (or maybe both start and end chunk) - * Read into the local buffer then copy, then copy over and write back. - */ - - __u8 *localBuffer = - yaffs_GetTempBuffer(dev, __LINE__); - - yaffs_ReadChunkDataFromObject(in, chunk, - localBuffer); - - - - memcpy(&localBuffer[start], buffer, nToCopy); - - chunkWritten = - yaffs_WriteChunkDataToObject(in, chunk, - localBuffer, - nToWriteBack, - 0); - - yaffs_ReleaseTempBuffer(dev, localBuffer, - __LINE__); - - } - - } else { - /* A full chunk. Write directly from the supplied buffer. */ - - - - chunkWritten = - yaffs_WriteChunkDataToObject(in, chunk, buffer, - dev->nDataBytesPerChunk, - 0); - - /* Since we've overwritten the cached data, we better invalidate it. */ - yaffs_InvalidateChunkCache(in, chunk); - } - - if (chunkWritten >= 0) { - n -= nToCopy; - offset += nToCopy; - buffer += nToCopy; - nDone += nToCopy; - } - - } - - /* Update file object */ - - if ((startOfWrite + nDone) > in->variant.fileVariant.fileSize) - in->variant.fileVariant.fileSize = (startOfWrite + nDone); - - in->dirty = 1; - - return nDone; -} - - -/* ---------------------- File resizing stuff ------------------ */ - -static void yaffs_PruneResizedChunks(yaffs_Object *in, int newSize) -{ - - yaffs_Device *dev = in->myDev; - int oldFileSize = in->variant.fileVariant.fileSize; - - int lastDel = 1 + (oldFileSize - 1) / dev->nDataBytesPerChunk; - - int startDel = 1 + (newSize + dev->nDataBytesPerChunk - 1) / - dev->nDataBytesPerChunk; - int i; - int chunkId; - - /* Delete backwards so that we don't end up with holes if - * power is lost part-way through the operation. - */ - for (i = lastDel; i >= startDel; i--) { - /* NB this could be optimised somewhat, - * eg. could retrieve the tags and write them without - * using yaffs_DeleteChunk - */ - - chunkId = yaffs_FindAndDeleteChunkInFile(in, i, NULL); - if (chunkId > 0) { - if (chunkId < - (dev->internalStartBlock * dev->nChunksPerBlock) - || chunkId >= - ((dev->internalEndBlock + - 1) * dev->nChunksPerBlock)) { - T(YAFFS_TRACE_ALWAYS, - (TSTR("Found daft chunkId %d for %d" TENDSTR), - chunkId, i)); - } else { - in->nDataChunks--; - yaffs_DeleteChunk(dev, chunkId, 1, __LINE__); - } - } - } - -} - -int yaffs_ResizeFile(yaffs_Object *in, loff_t newSize) -{ - - int oldFileSize = in->variant.fileVariant.fileSize; - __u32 newSizeOfPartialChunk; - int newFullChunks; - - yaffs_Device *dev = in->myDev; - - yaffs_AddrToChunk(dev, newSize, &newFullChunks, &newSizeOfPartialChunk); - - yaffs_FlushFilesChunkCache(in); - yaffs_InvalidateWholeChunkCache(in); - - yaffs_CheckGarbageCollection(dev); - - if (in->variantType != YAFFS_OBJECT_TYPE_FILE) - return YAFFS_FAIL; - - if (newSize == oldFileSize) - return YAFFS_OK; - - if (newSize < oldFileSize) { - - yaffs_PruneResizedChunks(in, newSize); - - if (newSizeOfPartialChunk != 0) { - int lastChunk = 1 + newFullChunks; - - __u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__); - - /* Got to read and rewrite the last chunk with its new size and zero pad */ - yaffs_ReadChunkDataFromObject(in, lastChunk, - localBuffer); - - memset(localBuffer + newSizeOfPartialChunk, 0, - dev->nDataBytesPerChunk - newSizeOfPartialChunk); - - yaffs_WriteChunkDataToObject(in, lastChunk, localBuffer, - newSizeOfPartialChunk, 1); - - yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__); - } - - in->variant.fileVariant.fileSize = newSize; - - yaffs_PruneFileStructure(dev, &in->variant.fileVariant); - } else { - /* newsSize > oldFileSize */ - in->variant.fileVariant.fileSize = newSize; - } - - - /* Write a new object header to reflect the resize. - * show we've shrunk the file, if need be - * Do this only if the file is not in the deleted directories - * and is not shadowed. - */ - if (in->parent && - !in->isShadowed && - in->parent->objectId != YAFFS_OBJECTID_UNLINKED && - in->parent->objectId != YAFFS_OBJECTID_DELETED) - yaffs_UpdateObjectHeader(in, NULL, 0, - (newSize < oldFileSize) ? 1 : 0, 0); - - return YAFFS_OK; -} - -loff_t yaffs_GetFileSize(yaffs_Object *obj) -{ - obj = yaffs_GetEquivalentObject(obj); - - switch (obj->variantType) { - case YAFFS_OBJECT_TYPE_FILE: - return obj->variant.fileVariant.fileSize; - case YAFFS_OBJECT_TYPE_SYMLINK: - return yaffs_strlen(obj->variant.symLinkVariant.alias); - default: - return 0; - } -} - - - -int yaffs_FlushFile(yaffs_Object *in, int updateTime, int dataSync) -{ - int retVal; - if (in->dirty) { - yaffs_FlushFilesChunkCache(in); - if(dataSync) /* Only sync data */ - retVal=YAFFS_OK; - else { - if (updateTime) { -#ifdef CONFIG_YAFFS_WINCE - yfsd_WinFileTimeNow(in->win_mtime); -#else - - in->yst_mtime = Y_CURRENT_TIME; - -#endif - } - - retVal = (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >= - 0) ? YAFFS_OK : YAFFS_FAIL; - } - } else { - retVal = YAFFS_OK; - } - - return retVal; - -} - -static int yaffs_DoGenericObjectDeletion(yaffs_Object *in) -{ - - /* First off, invalidate the file's data in the cache, without flushing. */ - yaffs_InvalidateWholeChunkCache(in); - - if (in->myDev->isYaffs2 && (in->parent != in->myDev->deletedDir)) { - /* Move to the unlinked directory so we have a record that it was deleted. */ - yaffs_ChangeObjectName(in, in->myDev->deletedDir, _Y("deleted"), 0, 0); - - } - - yaffs_RemoveObjectFromDirectory(in); - yaffs_DeleteChunk(in->myDev, in->hdrChunk, 1, __LINE__); - in->hdrChunk = 0; - - yaffs_FreeObject(in); - return YAFFS_OK; - -} - -/* yaffs_DeleteFile deletes the whole file data - * and the inode associated with the file. - * It does not delete the links associated with the file. - */ -static int yaffs_UnlinkFileIfNeeded(yaffs_Object *in) -{ - - int retVal; - int immediateDeletion = 0; - -#ifdef __KERNEL__ - if (!in->myInode) - immediateDeletion = 1; -#else - if (in->inUse <= 0) - immediateDeletion = 1; -#endif - - if (immediateDeletion) { - retVal = - yaffs_ChangeObjectName(in, in->myDev->deletedDir, - _Y("deleted"), 0, 0); - T(YAFFS_TRACE_TRACING, - (TSTR("yaffs: immediate deletion of file %d" TENDSTR), - in->objectId)); - in->deleted = 1; - in->myDev->nDeletedFiles++; - if (1 || in->myDev->isYaffs2) - yaffs_ResizeFile(in, 0); - yaffs_SoftDeleteFile(in); - } else { - retVal = - yaffs_ChangeObjectName(in, in->myDev->unlinkedDir, - _Y("unlinked"), 0, 0); - } - - - return retVal; -} - -int yaffs_DeleteFile(yaffs_Object *in) -{ - int retVal = YAFFS_OK; - int deleted = in->deleted; - - yaffs_ResizeFile(in, 0); - - if (in->nDataChunks > 0) { - /* Use soft deletion if there is data in the file. - * That won't be the case if it has been resized to zero. - */ - if (!in->unlinked) - retVal = yaffs_UnlinkFileIfNeeded(in); - - if (retVal == YAFFS_OK && in->unlinked && !in->deleted) { - in->deleted = 1; - deleted = 1; - in->myDev->nDeletedFiles++; - yaffs_SoftDeleteFile(in); - } - return deleted ? YAFFS_OK : YAFFS_FAIL; - } else { - /* The file has no data chunks so we toss it immediately */ - yaffs_FreeTnode(in->myDev, in->variant.fileVariant.top); - in->variant.fileVariant.top = NULL; - yaffs_DoGenericObjectDeletion(in); - - return YAFFS_OK; - } -} - -static int yaffs_IsNonEmptyDirectory(yaffs_Object *obj) -{ - return (obj->variantType == YAFFS_OBJECT_TYPE_DIRECTORY) && - !(ylist_empty(&obj->variant.directoryVariant.children)); -} - -static int yaffs_DeleteDirectory(yaffs_Object *obj) -{ - /* First check that the directory is empty. */ - if (yaffs_IsNonEmptyDirectory(obj)) - return YAFFS_FAIL; - - return yaffs_DoGenericObjectDeletion(obj); -} - -static int yaffs_DeleteSymLink(yaffs_Object *in) -{ - YFREE(in->variant.symLinkVariant.alias); - - return yaffs_DoGenericObjectDeletion(in); -} - -static int yaffs_DeleteHardLink(yaffs_Object *in) -{ - /* remove this hardlink from the list assocaited with the equivalent - * object - */ - ylist_del_init(&in->hardLinks); - return yaffs_DoGenericObjectDeletion(in); -} - -int yaffs_DeleteObject(yaffs_Object *obj) -{ -int retVal = -1; - switch (obj->variantType) { - case YAFFS_OBJECT_TYPE_FILE: - retVal = yaffs_DeleteFile(obj); - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - return yaffs_DeleteDirectory(obj); - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - retVal = yaffs_DeleteSymLink(obj); - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - retVal = yaffs_DeleteHardLink(obj); - break; - case YAFFS_OBJECT_TYPE_SPECIAL: - retVal = yaffs_DoGenericObjectDeletion(obj); - break; - case YAFFS_OBJECT_TYPE_UNKNOWN: - retVal = 0; - break; /* should not happen. */ - } - - return retVal; -} - -static int yaffs_UnlinkWorker(yaffs_Object *obj) -{ - - int immediateDeletion = 0; - -#ifdef __KERNEL__ - if (!obj->myInode) - immediateDeletion = 1; -#else - if (obj->inUse <= 0) - immediateDeletion = 1; -#endif - - if(obj) - yaffs_UpdateParent(obj->parent); - - if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { - return yaffs_DeleteHardLink(obj); - } else if (!ylist_empty(&obj->hardLinks)) { - /* Curve ball: We're unlinking an object that has a hardlink. - * - * This problem arises because we are not strictly following - * The Linux link/inode model. - * - * We can't really delete the object. - * Instead, we do the following: - * - Select a hardlink. - * - Unhook it from the hard links - * - Unhook it from its parent directory (so that the rename can work) - * - Rename the object to the hardlink's name. - * - Delete the hardlink - */ - - yaffs_Object *hl; - int retVal; - YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; - - hl = ylist_entry(obj->hardLinks.next, yaffs_Object, hardLinks); - - ylist_del_init(&hl->hardLinks); - ylist_del_init(&hl->siblings); - - yaffs_GetObjectName(hl, name, YAFFS_MAX_NAME_LENGTH + 1); - - retVal = yaffs_ChangeObjectName(obj, hl->parent, name, 0, 0); - - if (retVal == YAFFS_OK) - retVal = yaffs_DoGenericObjectDeletion(hl); - - return retVal; - - } else if (immediateDeletion) { - switch (obj->variantType) { - case YAFFS_OBJECT_TYPE_FILE: - return yaffs_DeleteFile(obj); - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - return yaffs_DeleteDirectory(obj); - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - return yaffs_DeleteSymLink(obj); - break; - case YAFFS_OBJECT_TYPE_SPECIAL: - return yaffs_DoGenericObjectDeletion(obj); - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - case YAFFS_OBJECT_TYPE_UNKNOWN: - default: - return YAFFS_FAIL; - } - } else if(yaffs_IsNonEmptyDirectory(obj)) - return YAFFS_FAIL; - else - return yaffs_ChangeObjectName(obj, obj->myDev->unlinkedDir, - _Y("unlinked"), 0, 0); -} - - -static int yaffs_UnlinkObject(yaffs_Object *obj) -{ - - if (obj && obj->unlinkAllowed) - return yaffs_UnlinkWorker(obj); - - return YAFFS_FAIL; - -} -int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name) -{ - yaffs_Object *obj; - - obj = yaffs_FindObjectByName(dir, name); - return yaffs_UnlinkObject(obj); -} - -/*----------------------- Initialisation Scanning ---------------------- */ - -#ifdef CYGSEM_FS_YAFFS_OMIT_YAFFS2_CODE -#else -static void yaffs_HandleShadowedObject(yaffs_Device *dev, int objId, - int backwardScanning) -{ - yaffs_Object *obj; - - if (!backwardScanning) { - /* Handle YAFFS1 forward scanning case - * For YAFFS1 we always do the deletion - */ - - } else { - /* Handle YAFFS2 case (backward scanning) - * If the shadowed object exists then ignore. - */ - obj = yaffs_FindObjectByNumber(dev, objId); - if(obj) - return; - } - - /* Let's create it (if it does not exist) assuming it is a file so that it can do shrinking etc. - * We put it in unlinked dir to be cleaned up after the scanning - */ - obj = - yaffs_FindOrCreateObjectByNumber(dev, objId, - YAFFS_OBJECT_TYPE_FILE); - if (!obj) - return; - obj->isShadowed = 1; - yaffs_AddObjectToDirectory(dev->unlinkedDir, obj); - obj->variant.fileVariant.shrinkSize = 0; - obj->valid = 1; /* So that we don't read any other info for this file */ - -} -#endif - -typedef struct { - int seq; - int block; -} yaffs_BlockIndex; - - -static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList) -{ - yaffs_Object *hl; - yaffs_Object *in; - - while (hardList) { - hl = hardList; - hardList = (yaffs_Object *) (hardList->hardLinks.next); - - in = yaffs_FindObjectByNumber(dev, - hl->variant.hardLinkVariant. - equivalentObjectId); - - if (in) { - /* Add the hardlink pointers */ - hl->variant.hardLinkVariant.equivalentObject = in; - ylist_add(&hl->hardLinks, &in->hardLinks); - } else { - /* Todo Need to report/handle this better. - * Got a problem... hardlink to a non-existant object - */ - hl->variant.hardLinkVariant.equivalentObject = NULL; - YINIT_LIST_HEAD(&hl->hardLinks); - - } - } -} - - - - - -#ifdef CYGSEM_FS_YAFFS_OMIT_YAFFS2_CODE -#else -static int ybicmp(const void *a, const void *b) -{ - register int aseq = ((yaffs_BlockIndex *)a)->seq; - register int bseq = ((yaffs_BlockIndex *)b)->seq; - register int ablock = ((yaffs_BlockIndex *)a)->block; - register int bblock = ((yaffs_BlockIndex *)b)->block; - if (aseq == bseq) - return ablock - bblock; - else - return aseq - bseq; -} -#endif - -struct yaffs_ShadowFixerStruct { - int objectId; - int shadowedId; - struct yaffs_ShadowFixerStruct *next; -}; - - -static void yaffs_StripDeletedObjects(yaffs_Device *dev) -{ - /* - * Sort out state of unlinked and deleted objects after scanning. - */ - struct ylist_head *i; - struct ylist_head *n; - yaffs_Object *l; - - /* Soft delete all the unlinked files */ - ylist_for_each_safe(i, n, - &dev->unlinkedDir->variant.directoryVariant.children) { - if (i) { - l = ylist_entry(i, yaffs_Object, siblings); - yaffs_DeleteObject(l); - } - } - - ylist_for_each_safe(i, n, - &dev->deletedDir->variant.directoryVariant.children) { - if (i) { - l = ylist_entry(i, yaffs_Object, siblings); - yaffs_DeleteObject(l); - } - } - -} - -/* - * This code iterates through all the objects making sure that they are rooted. - * Any unrooted objects are re-rooted in lost+found. - * An object needs to be in one of: - * - Directly under deleted, unlinked - * - Directly or indirectly under root. - * - * Note: - * This code assumes that we don't ever change the current relationships between - * directories: - * rootDir->parent == unlinkedDir->parent == deletedDir->parent == NULL - * lostNfound->parent == rootDir - * - * This fixes the problem where directories might have inadvertently been deleted - * leaving the object "hanging" without being rooted in the directory tree. - */ - -static int yaffs_HasNULLParent(yaffs_Device *dev, yaffs_Object *obj) -{ - return (obj == dev->deletedDir || - obj == dev->unlinkedDir|| - obj == dev->rootDir); -} - -static void yaffs_FixHangingObjects(yaffs_Device *dev) -{ - yaffs_Object *obj; - yaffs_Object *parent; - int i; - struct ylist_head *lh; - struct ylist_head *n; - int depthLimit; - int hanging; - - - /* Iterate through the objects in each hash entry, - * looking at each object. - * Make sure it is rooted. - */ - - for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { - ylist_for_each_safe(lh, n, &dev->objectBucket[i].list) { - if (lh) { - obj = ylist_entry(lh, yaffs_Object, hashLink); - parent= obj->parent; - - if(yaffs_HasNULLParent(dev,obj)){ - /* These directories are not hanging */ - hanging = 0; - } - else if(!parent || parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) - hanging = 1; - else if(yaffs_HasNULLParent(dev,parent)) - hanging = 0; - else { - /* - * Need to follow the parent chain to see if it is hanging. - */ - hanging = 0; - depthLimit=100; - - while(parent != dev->rootDir && - parent->parent && - parent->parent->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && - depthLimit > 0){ - parent = parent->parent; - depthLimit--; - } - if(parent != dev->rootDir) - hanging = 1; - } - if(hanging){ - T(YAFFS_TRACE_SCAN, - (TSTR("Hanging object %d moved to lost and found" TENDSTR), - obj->objectId)); - yaffs_AddObjectToDirectory(dev->lostNFoundDir,obj); - } - } - } - } -} - - -/* - * Delete directory contents for cleaning up lost and found. - */ -static void yaffs_DeleteDirectoryContents(yaffs_Object *dir) -{ - yaffs_Object *obj; - struct ylist_head *lh; - struct ylist_head *n; - - if(dir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) - YBUG(); - - ylist_for_each_safe(lh, n, &dir->variant.directoryVariant.children) { - if (lh) { - obj = ylist_entry(lh, yaffs_Object, siblings); - if(obj->variantType == YAFFS_OBJECT_TYPE_DIRECTORY) - yaffs_DeleteDirectoryContents(obj); - - T(YAFFS_TRACE_SCAN, - (TSTR("Deleting lost_found object %d" TENDSTR), - obj->objectId)); - - /* Need to use UnlinkObject since Delete would not handle - * hardlinked objects correctly. - */ - yaffs_UnlinkObject(obj); - } - } - -} - -static void yaffs_EmptyLostAndFound(yaffs_Device *dev) -{ - yaffs_DeleteDirectoryContents(dev->lostNFoundDir); -} - -#ifndef CONFIG_YAFFS_NO_YAFFS1 -static int yaffs_Scan(yaffs_Device *dev) -{ - yaffs_ExtendedTags tags; - int blk; - int blockIterator; - int startIterator; - int endIterator; - int result; - - int chunk; - int c; - int deleted; - yaffs_BlockState state; - yaffs_Object *hardList = NULL; - yaffs_BlockInfo *bi; - __u32 sequenceNumber; - yaffs_ObjectHeader *oh; - yaffs_Object *in; - yaffs_Object *parent; - - int alloc_failed = 0; - - struct yaffs_ShadowFixerStruct *shadowFixerList = NULL; - - - __u8 *chunkData; - - - - T(YAFFS_TRACE_SCAN, - (TSTR("yaffs_Scan starts intstartblk %d intendblk %d..." TENDSTR), - dev->internalStartBlock, dev->internalEndBlock)); - - chunkData = yaffs_GetTempBuffer(dev, __LINE__); - - dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER; - - /* Scan all the blocks to determine their state */ - for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) { - bi = yaffs_GetBlockInfo(dev, blk); - yaffs_ClearChunkBits(dev, blk); - bi->pagesInUse = 0; - bi->softDeletions = 0; - - yaffs_QueryInitialBlockState(dev, blk, &state, &sequenceNumber); - - bi->blockState = state; - bi->sequenceNumber = sequenceNumber; - - if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK) - bi->blockState = state = YAFFS_BLOCK_STATE_DEAD; - - T(YAFFS_TRACE_SCAN_DEBUG, - (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, - state, sequenceNumber)); - - if (state == YAFFS_BLOCK_STATE_DEAD) { - T(YAFFS_TRACE_BAD_BLOCKS, - (TSTR("block %d is bad" TENDSTR), blk)); - } else if (state == YAFFS_BLOCK_STATE_EMPTY) { - T(YAFFS_TRACE_SCAN_DEBUG, - (TSTR("Block empty " TENDSTR))); - dev->nErasedBlocks++; - dev->nFreeChunks += dev->nChunksPerBlock; - } - } - - startIterator = dev->internalStartBlock; - endIterator = dev->internalEndBlock; - - /* For each block.... */ - for (blockIterator = startIterator; !alloc_failed && blockIterator <= endIterator; - blockIterator++) { - - YYIELD(); - - YYIELD(); - - blk = blockIterator; - - bi = yaffs_GetBlockInfo(dev, blk); - state = bi->blockState; - - deleted = 0; - - /* For each chunk in each block that needs scanning....*/ - for (c = 0; !alloc_failed && c < dev->nChunksPerBlock && - state == YAFFS_BLOCK_STATE_NEEDS_SCANNING; c++) { - /* Read the tags and decide what to do */ - chunk = blk * dev->nChunksPerBlock + c; - - result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL, - &tags); - - /* Let's have a good look at this chunk... */ - - if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED || tags.chunkDeleted) { - /* YAFFS1 only... - * A deleted chunk - */ - deleted++; - dev->nFreeChunks++; - /*T((" %d %d deleted\n",blk,c)); */ - } else if (!tags.chunkUsed) { - /* An unassigned chunk in the block - * This means that either the block is empty or - * this is the one being allocated from - */ - - if (c == 0) { - /* We're looking at the first chunk in the block so the block is unused */ - state = YAFFS_BLOCK_STATE_EMPTY; - dev->nErasedBlocks++; - } else { - /* this is the block being allocated from */ - T(YAFFS_TRACE_SCAN, - (TSTR - (" Allocating from %d %d" TENDSTR), - blk, c)); - state = YAFFS_BLOCK_STATE_ALLOCATING; - dev->allocationBlock = blk; - dev->allocationPage = c; - dev->allocationBlockFinder = blk; - /* Set it to here to encourage the allocator to go forth from here. */ - - } - - dev->nFreeChunks += (dev->nChunksPerBlock - c); - } else if (tags.chunkId > 0) { - /* chunkId > 0 so it is a data chunk... */ - unsigned int endpos; - - yaffs_SetChunkBit(dev, blk, c); - bi->pagesInUse++; - - in = yaffs_FindOrCreateObjectByNumber(dev, - tags. - objectId, - YAFFS_OBJECT_TYPE_FILE); - /* PutChunkIntoFile checks for a clash (two data chunks with - * the same chunkId). - */ - - if (!in) - alloc_failed = 1; - - if (in) { - if (!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk, 1)) - alloc_failed = 1; - } - - endpos = - (tags.chunkId - 1) * dev->nDataBytesPerChunk + - tags.byteCount; - if (in && - in->variantType == YAFFS_OBJECT_TYPE_FILE - && in->variant.fileVariant.scannedFileSize < - endpos) { - in->variant.fileVariant. - scannedFileSize = endpos; - if (!dev->useHeaderFileSize) { - in->variant.fileVariant. - fileSize = - in->variant.fileVariant. - scannedFileSize; - } - - } - /* T((" %d %d data %d %d\n",blk,c,tags.objectId,tags.chunkId)); */ - } else { - /* chunkId == 0, so it is an ObjectHeader. - * Thus, we read in the object header and make the object - */ - yaffs_SetChunkBit(dev, blk, c); - bi->pagesInUse++; - - result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, - chunkData, - NULL); - - oh = (yaffs_ObjectHeader *) chunkData; - - in = yaffs_FindObjectByNumber(dev, - tags.objectId); - if (in && in->variantType != oh->type) { - /* This should not happen, but somehow - * Wev'e ended up with an objectId that has been reused but not yet - * deleted, and worse still it has changed type. Delete the old object. - */ - - yaffs_DeleteObject(in); - - in = 0; - } - - in = yaffs_FindOrCreateObjectByNumber(dev, - tags. - objectId, - oh->type); - - if (!in) - alloc_failed = 1; - - if (in && oh->shadowsObject > 0) { - - struct yaffs_ShadowFixerStruct *fixer; - fixer = YMALLOC(sizeof(struct yaffs_ShadowFixerStruct)); - if (fixer) { - fixer->next = shadowFixerList; - shadowFixerList = fixer; - fixer->objectId = tags.objectId; - fixer->shadowedId = oh->shadowsObject; - } - - } - - if (in && in->valid) { - /* We have already filled this one. We have a duplicate and need to resolve it. */ - - unsigned existingSerial = in->serial; - unsigned newSerial = tags.serialNumber; - - if (((existingSerial + 1) & 3) == newSerial) { - /* Use new one - destroy the exisiting one */ - yaffs_DeleteChunk(dev, - in->hdrChunk, - 1, __LINE__); - in->valid = 0; - } else { - /* Use existing - destroy this one. */ - yaffs_DeleteChunk(dev, chunk, 1, - __LINE__); - } - } - - if (in && !in->valid && - (tags.objectId == YAFFS_OBJECTID_ROOT || - tags.objectId == YAFFS_OBJECTID_LOSTNFOUND)) { - /* We only load some info, don't fiddle with directory structure */ - in->valid = 1; - in->variantType = oh->type; - - in->yst_mode = oh->yst_mode; -#ifdef CONFIG_YAFFS_WINCE - in->win_atime[0] = oh->win_atime[0]; - in->win_ctime[0] = oh->win_ctime[0]; - in->win_mtime[0] = oh->win_mtime[0]; - in->win_atime[1] = oh->win_atime[1]; - in->win_ctime[1] = oh->win_ctime[1]; - in->win_mtime[1] = oh->win_mtime[1]; -#else - in->yst_uid = oh->yst_uid; - in->yst_gid = oh->yst_gid; - in->yst_atime = oh->yst_atime; - in->yst_mtime = oh->yst_mtime; - in->yst_ctime = oh->yst_ctime; - in->yst_rdev = oh->yst_rdev; -#endif - in->hdrChunk = chunk; - in->serial = tags.serialNumber; - - } else if (in && !in->valid) { - /* we need to load this info */ - - in->valid = 1; - in->variantType = oh->type; - - in->yst_mode = oh->yst_mode; -#ifdef CONFIG_YAFFS_WINCE - in->win_atime[0] = oh->win_atime[0]; - in->win_ctime[0] = oh->win_ctime[0]; - in->win_mtime[0] = oh->win_mtime[0]; - in->win_atime[1] = oh->win_atime[1]; - in->win_ctime[1] = oh->win_ctime[1]; - in->win_mtime[1] = oh->win_mtime[1]; -#else - in->yst_uid = oh->yst_uid; - in->yst_gid = oh->yst_gid; - in->yst_atime = oh->yst_atime; - in->yst_mtime = oh->yst_mtime; - in->yst_ctime = oh->yst_ctime; - in->yst_rdev = oh->yst_rdev; -#endif - in->hdrChunk = chunk; - in->serial = tags.serialNumber; - - yaffs_SetObjectName(in, oh->name); - in->dirty = 0; - - /* directory stuff... - * hook up to parent - */ - - parent = - yaffs_FindOrCreateObjectByNumber - (dev, oh->parentObjectId, - YAFFS_OBJECT_TYPE_DIRECTORY); - if (!parent) - alloc_failed = 1; - if (parent && parent->variantType == - YAFFS_OBJECT_TYPE_UNKNOWN) { - /* Set up as a directory */ - parent->variantType = - YAFFS_OBJECT_TYPE_DIRECTORY; - YINIT_LIST_HEAD(&parent->variant. - directoryVariant. - children); - } else if (!parent || parent->variantType != - YAFFS_OBJECT_TYPE_DIRECTORY) { - /* Hoosterman, another problem.... - * We're trying to use a non-directory as a directory - */ - - T(YAFFS_TRACE_ERROR, - (TSTR - ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." - TENDSTR))); - parent = dev->lostNFoundDir; - } - - yaffs_AddObjectToDirectory(parent, in); - - if (0 && (parent == dev->deletedDir || - parent == dev->unlinkedDir)) { - in->deleted = 1; /* If it is unlinked at start up then it wants deleting */ - dev->nDeletedFiles++; - } - /* Note re hardlinks. - * Since we might scan a hardlink before its equivalent object is scanned - * we put them all in a list. - * After scanning is complete, we should have all the objects, so we run through this - * list and fix up all the chains. - */ - - switch (in->variantType) { - case YAFFS_OBJECT_TYPE_UNKNOWN: - /* Todo got a problem */ - break; - case YAFFS_OBJECT_TYPE_FILE: - if (dev->useHeaderFileSize) - - in->variant.fileVariant. - fileSize = - oh->fileSize; - - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - in->variant.hardLinkVariant. - equivalentObjectId = - oh->equivalentObjectId; - in->hardLinks.next = - (struct ylist_head *) - hardList; - hardList = in; - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - /* Do nothing */ - break; - case YAFFS_OBJECT_TYPE_SPECIAL: - /* Do nothing */ - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - in->variant.symLinkVariant.alias = - yaffs_CloneString(oh->alias); - if (!in->variant.symLinkVariant.alias) - alloc_failed = 1; - break; - } - -/* - if (parent == dev->deletedDir) { - yaffs_DestroyObject(in); - bi->hasShrinkHeader = 1; - } -*/ - } - } - } - - if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { - /* If we got this far while scanning, then the block is fully allocated.*/ - state = YAFFS_BLOCK_STATE_FULL; - } - - bi->blockState = state; - - /* Now let's see if it was dirty */ - if (bi->pagesInUse == 0 && - !bi->hasShrinkHeader && - bi->blockState == YAFFS_BLOCK_STATE_FULL) { - yaffs_BlockBecameDirty(dev, blk); - } - - } - - - /* Ok, we've done all the scanning. - * Fix up the hard link chains. - * We should now have scanned all the objects, now it's time to add these - * hardlinks. - */ - - yaffs_HardlinkFixup(dev, hardList); - - /* Fix up any shadowed objects */ - { - struct yaffs_ShadowFixerStruct *fixer; - yaffs_Object *obj; - - while (shadowFixerList) { - fixer = shadowFixerList; - shadowFixerList = fixer->next; - /* Complete the rename transaction by deleting the shadowed object - * then setting the object header to unshadowed. - */ - obj = yaffs_FindObjectByNumber(dev, fixer->shadowedId); - if (obj) - yaffs_DeleteObject(obj); - - obj = yaffs_FindObjectByNumber(dev, fixer->objectId); - - if (obj) - yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0); - - YFREE(fixer); - } - } - - yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); - - if (alloc_failed) { - T(YAFFS_TRACE_ERROR, (TSTR("malloc failed in yaffs_ScanBackwards" TENDSTR))); - return YAFFS_FAIL; - } - - T(YAFFS_TRACE_SCAN, (TSTR("yaffs_Scan ends" TENDSTR))); - - - return YAFFS_OK; -} -#endif //CONFIG_YAFFS_NO_YAFFS1 - - -static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in) -{ - __u8 *chunkData; - yaffs_ObjectHeader *oh; - yaffs_Device *dev; - yaffs_ExtendedTags tags; - int result; - int alloc_failed = 0; - - if (!in) - return; - - dev = in->myDev; - -#if 0 - T(YAFFS_TRACE_SCAN, (TSTR("details for object %d %s loaded" TENDSTR), - in->objectId, - in->lazyLoaded ? "not yet" : "already")); -#endif - - if (in->lazyLoaded && in->hdrChunk > 0) { - in->lazyLoaded = 0; - chunkData = yaffs_GetTempBuffer(dev, __LINE__); - - result = yaffs_ReadChunkWithTagsFromNAND(dev, in->hdrChunk, chunkData, &tags); - oh = (yaffs_ObjectHeader *) chunkData; - - in->yst_mode = oh->yst_mode; -#ifdef CONFIG_YAFFS_WINCE - in->win_atime[0] = oh->win_atime[0]; - in->win_ctime[0] = oh->win_ctime[0]; - in->win_mtime[0] = oh->win_mtime[0]; - in->win_atime[1] = oh->win_atime[1]; - in->win_ctime[1] = oh->win_ctime[1]; - in->win_mtime[1] = oh->win_mtime[1]; -#else - in->yst_uid = oh->yst_uid; - in->yst_gid = oh->yst_gid; - in->yst_atime = oh->yst_atime; - in->yst_mtime = oh->yst_mtime; - in->yst_ctime = oh->yst_ctime; - in->yst_rdev = oh->yst_rdev; - -#endif - yaffs_SetObjectName(in, oh->name); - - if (in->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { - in->variant.symLinkVariant.alias = - yaffs_CloneString(oh->alias); - if (!in->variant.symLinkVariant.alias) - alloc_failed = 1; /* Not returned to caller */ - } - - yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); - } -} - -#ifdef CYGSEM_FS_YAFFS_OMIT_YAFFS2_CODE -#else -static int yaffs_ScanBackwards(yaffs_Device *dev) -{ - yaffs_ExtendedTags tags; - int blk; - int blockIterator; - int startIterator; - int endIterator; - int nBlocksToScan = 0; - - int chunk; - int result; - int c; - int deleted; - yaffs_BlockState state; - yaffs_Object *hardList = NULL; - yaffs_BlockInfo *bi; - __u32 sequenceNumber; - yaffs_ObjectHeader *oh; - yaffs_Object *in; - yaffs_Object *parent; - int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; - int itsUnlinked; - __u8 *chunkData; - - int fileSize; - int isShrink; - int foundChunksInBlock; - int equivalentObjectId; - int alloc_failed = 0; - - - yaffs_BlockIndex *blockIndex = NULL; - int altBlockIndex = 0; - - if (!dev->isYaffs2) { - T(YAFFS_TRACE_SCAN, - (TSTR("yaffs_ScanBackwards is only for YAFFS2!" TENDSTR))); - return YAFFS_FAIL; - } - - T(YAFFS_TRACE_SCAN, - (TSTR - ("yaffs_ScanBackwards starts intstartblk %d intendblk %d..." - TENDSTR), dev->internalStartBlock, dev->internalEndBlock)); - - - dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER; - - blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex)); - - if (!blockIndex) { - blockIndex = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockIndex)); - altBlockIndex = 1; - } - - if (!blockIndex) { - T(YAFFS_TRACE_SCAN, - (TSTR("yaffs_Scan() could not allocate block index!" TENDSTR))); - return YAFFS_FAIL; - } - - dev->blocksInCheckpoint = 0; - - chunkData = yaffs_GetTempBuffer(dev, __LINE__); - - /* Scan all the blocks to determine their state */ - for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) { - bi = yaffs_GetBlockInfo(dev, blk); - yaffs_ClearChunkBits(dev, blk); - bi->pagesInUse = 0; - bi->softDeletions = 0; - - yaffs_QueryInitialBlockState(dev, blk, &state, &sequenceNumber); - - bi->blockState = state; - bi->sequenceNumber = sequenceNumber; - - if (bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) - bi->blockState = state = YAFFS_BLOCK_STATE_CHECKPOINT; - if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK) - bi->blockState = state = YAFFS_BLOCK_STATE_DEAD; - - T(YAFFS_TRACE_SCAN_DEBUG, - (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, - state, sequenceNumber)); - - - if (state == YAFFS_BLOCK_STATE_CHECKPOINT) { - dev->blocksInCheckpoint++; - - } else if (state == YAFFS_BLOCK_STATE_DEAD) { - T(YAFFS_TRACE_BAD_BLOCKS, - (TSTR("block %d is bad" TENDSTR), blk)); - } else if (state == YAFFS_BLOCK_STATE_EMPTY) { - T(YAFFS_TRACE_SCAN_DEBUG, - (TSTR("Block empty " TENDSTR))); - dev->nErasedBlocks++; - dev->nFreeChunks += dev->nChunksPerBlock; - } else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { - - /* Determine the highest sequence number */ - if (sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER && - sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) { - - blockIndex[nBlocksToScan].seq = sequenceNumber; - blockIndex[nBlocksToScan].block = blk; - - nBlocksToScan++; - - if (sequenceNumber >= dev->sequenceNumber) - dev->sequenceNumber = sequenceNumber; - } else { - /* TODO: Nasty sequence number! */ - T(YAFFS_TRACE_SCAN, - (TSTR - ("Block scanning block %d has bad sequence number %d" - TENDSTR), blk, sequenceNumber)); - - } - } - } - - T(YAFFS_TRACE_SCAN, - (TSTR("%d blocks to be sorted..." TENDSTR), nBlocksToScan)); - - - - YYIELD(); - - /* Sort the blocks */ -#ifndef CONFIG_YAFFS_USE_OWN_SORT - { - /* Use qsort now. */ - yaffs_qsort(blockIndex, nBlocksToScan, sizeof(yaffs_BlockIndex), ybicmp); - } -#else - { - /* Dungy old bubble sort... */ - - yaffs_BlockIndex temp; - int i; - int j; - - for (i = 0; i < nBlocksToScan; i++) - for (j = i + 1; j < nBlocksToScan; j++) - if (blockIndex[i].seq > blockIndex[j].seq) { - temp = blockIndex[j]; - blockIndex[j] = blockIndex[i]; - blockIndex[i] = temp; - } - } -#endif - - YYIELD(); - - T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR))); - - /* Now scan the blocks looking at the data. */ - startIterator = 0; - endIterator = nBlocksToScan - 1; - T(YAFFS_TRACE_SCAN_DEBUG, - (TSTR("%d blocks to be scanned" TENDSTR), nBlocksToScan)); - - /* For each block.... backwards */ - for (blockIterator = endIterator; !alloc_failed && blockIterator >= startIterator; - blockIterator--) { - /* Cooperative multitasking! This loop can run for so - long that watchdog timers expire. */ - YYIELD(); - - /* get the block to scan in the correct order */ - blk = blockIndex[blockIterator].block; - - bi = yaffs_GetBlockInfo(dev, blk); - - - state = bi->blockState; - - deleted = 0; - - /* For each chunk in each block that needs scanning.... */ - foundChunksInBlock = 0; - for (c = dev->nChunksPerBlock - 1; - !alloc_failed && c >= 0 && - (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || - state == YAFFS_BLOCK_STATE_ALLOCATING); c--) { - /* Scan backwards... - * Read the tags and decide what to do - */ - - chunk = blk * dev->nChunksPerBlock + c; - - result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL, - &tags); - - /* Let's have a good look at this chunk... */ - - if (!tags.chunkUsed) { - /* An unassigned chunk in the block. - * If there are used chunks after this one, then - * it is a chunk that was skipped due to failing the erased - * check. Just skip it so that it can be deleted. - * But, more typically, We get here when this is an unallocated - * chunk and his means that either the block is empty or - * this is the one being allocated from - */ - - if (foundChunksInBlock) { - /* This is a chunk that was skipped due to failing the erased check */ - } else if (c == 0) { - /* We're looking at the first chunk in the block so the block is unused */ - state = YAFFS_BLOCK_STATE_EMPTY; - dev->nErasedBlocks++; - } else { - if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || - state == YAFFS_BLOCK_STATE_ALLOCATING) { - if (dev->sequenceNumber == bi->sequenceNumber) { - /* this is the block being allocated from */ - - T(YAFFS_TRACE_SCAN, - (TSTR - (" Allocating from %d %d" - TENDSTR), blk, c)); - - state = YAFFS_BLOCK_STATE_ALLOCATING; - dev->allocationBlock = blk; - dev->allocationPage = c; - dev->allocationBlockFinder = blk; - } else { - /* This is a partially written block that is not - * the current allocation block. This block must have - * had a write failure, so set up for retirement. - */ - - /* bi->needsRetiring = 1; ??? TODO */ - bi->gcPrioritise = 1; - - T(YAFFS_TRACE_ALWAYS, - (TSTR("Partially written block %d detected" TENDSTR), - blk)); - } - } - } - - dev->nFreeChunks++; - - } else if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED) { - T(YAFFS_TRACE_SCAN, - (TSTR(" Unfixed ECC in chunk(%d:%d), chunk ignored"TENDSTR), - blk, c)); - - dev->nFreeChunks++; - - } else if (tags.chunkId > 0) { - /* chunkId > 0 so it is a data chunk... */ - unsigned int endpos; - __u32 chunkBase = - (tags.chunkId - 1) * dev->nDataBytesPerChunk; - - foundChunksInBlock = 1; - - - yaffs_SetChunkBit(dev, blk, c); - bi->pagesInUse++; - - in = yaffs_FindOrCreateObjectByNumber(dev, - tags. - objectId, - YAFFS_OBJECT_TYPE_FILE); - if (!in) { - /* Out of memory */ - alloc_failed = 1; - } - - if (in && - in->variantType == YAFFS_OBJECT_TYPE_FILE - && chunkBase < - in->variant.fileVariant.shrinkSize) { - /* This has not been invalidated by a resize */ - if (!yaffs_PutChunkIntoFile(in, tags.chunkId, - chunk, -1)) { - alloc_failed = 1; - } - - /* File size is calculated by looking at the data chunks if we have not - * seen an object header yet. Stop this practice once we find an object header. - */ - endpos = - (tags.chunkId - - 1) * dev->nDataBytesPerChunk + - tags.byteCount; - - if (!in->valid && /* have not got an object header yet */ - in->variant.fileVariant. - scannedFileSize < endpos) { - in->variant.fileVariant. - scannedFileSize = endpos; - in->variant.fileVariant. - fileSize = - in->variant.fileVariant. - scannedFileSize; - } - - } else if (in) { - /* This chunk has been invalidated by a resize, so delete */ - yaffs_DeleteChunk(dev, chunk, 1, __LINE__); - - } - } else { - /* chunkId == 0, so it is an ObjectHeader. - * Thus, we read in the object header and make the object - */ - foundChunksInBlock = 1; - - yaffs_SetChunkBit(dev, blk, c); - bi->pagesInUse++; - - oh = NULL; - in = NULL; - - if (tags.extraHeaderInfoAvailable) { - in = yaffs_FindOrCreateObjectByNumber - (dev, tags.objectId, - tags.extraObjectType); - if (!in) - alloc_failed = 1; - } - - if (!in || - (!in->valid && dev->disableLazyLoad) || - tags.extraShadows || - (!in->valid && - (tags.objectId == YAFFS_OBJECTID_ROOT || - tags.objectId == YAFFS_OBJECTID_LOSTNFOUND))) { - - /* If we don't have valid info then we need to read the chunk - * TODO In future we can probably defer reading the chunk and - * living with invalid data until needed. - */ - - result = yaffs_ReadChunkWithTagsFromNAND(dev, - chunk, - chunkData, - NULL); - - oh = (yaffs_ObjectHeader *) chunkData; - - if (dev->inbandTags) { - /* Fix up the header if they got corrupted by inband tags */ - oh->shadowsObject = oh->inbandShadowsObject; - oh->isShrink = oh->inbandIsShrink; - } - - if (!in) { - in = yaffs_FindOrCreateObjectByNumber(dev, tags.objectId, oh->type); - if (!in) - alloc_failed = 1; - } - - } - - if (!in) { - /* TODO Hoosterman we have a problem! */ - T(YAFFS_TRACE_ERROR, - (TSTR - ("yaffs tragedy: Could not make object for object %d at chunk %d during scan" - TENDSTR), tags.objectId, chunk)); - continue; - } - - if (in->valid) { - /* We have already filled this one. - * We have a duplicate that will be discarded, but - * we first have to suck out resize info if it is a file. - */ - - if ((in->variantType == YAFFS_OBJECT_TYPE_FILE) && - ((oh && - oh->type == YAFFS_OBJECT_TYPE_FILE) || - (tags.extraHeaderInfoAvailable && - tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE))) { - __u32 thisSize = - (oh) ? oh->fileSize : tags. - extraFileLength; - __u32 parentObjectId = - (oh) ? oh-> - parentObjectId : tags. - extraParentObjectId; - - - isShrink = - (oh) ? oh->isShrink : tags. - extraIsShrinkHeader; - - /* If it is deleted (unlinked at start also means deleted) - * we treat the file size as being zeroed at this point. - */ - if (parentObjectId == - YAFFS_OBJECTID_DELETED - || parentObjectId == - YAFFS_OBJECTID_UNLINKED) { - thisSize = 0; - isShrink = 1; - } - - if (isShrink && - in->variant.fileVariant. - shrinkSize > thisSize) { - in->variant.fileVariant. - shrinkSize = - thisSize; - } - - if (isShrink) - bi->hasShrinkHeader = 1; - - } - /* Use existing - destroy this one. */ - yaffs_DeleteChunk(dev, chunk, 1, __LINE__); - - } - - if (!in->valid && in->variantType != - (oh ? oh->type : tags.extraObjectType)) - T(YAFFS_TRACE_ERROR, ( - TSTR("yaffs tragedy: Bad object type, " - TCONT("%d != %d, for object %d at chunk ") - TCONT("%d during scan") - TENDSTR), oh ? - oh->type : tags.extraObjectType, - in->variantType, tags.objectId, - chunk)); - - if (!in->valid && - (tags.objectId == YAFFS_OBJECTID_ROOT || - tags.objectId == - YAFFS_OBJECTID_LOSTNFOUND)) { - /* We only load some info, don't fiddle with directory structure */ - in->valid = 1; - - if (oh) { - in->variantType = oh->type; - - in->yst_mode = oh->yst_mode; -#ifdef CONFIG_YAFFS_WINCE - in->win_atime[0] = oh->win_atime[0]; - in->win_ctime[0] = oh->win_ctime[0]; - in->win_mtime[0] = oh->win_mtime[0]; - in->win_atime[1] = oh->win_atime[1]; - in->win_ctime[1] = oh->win_ctime[1]; - in->win_mtime[1] = oh->win_mtime[1]; -#else - in->yst_uid = oh->yst_uid; - in->yst_gid = oh->yst_gid; - in->yst_atime = oh->yst_atime; - in->yst_mtime = oh->yst_mtime; - in->yst_ctime = oh->yst_ctime; - in->yst_rdev = oh->yst_rdev; - -#endif - } else { - in->variantType = tags.extraObjectType; - in->lazyLoaded = 1; - } - - in->hdrChunk = chunk; - - } else if (!in->valid) { - /* we need to load this info */ - - in->valid = 1; - in->hdrChunk = chunk; - - if (oh) { - in->variantType = oh->type; - - in->yst_mode = oh->yst_mode; -#ifdef CONFIG_YAFFS_WINCE - in->win_atime[0] = oh->win_atime[0]; - in->win_ctime[0] = oh->win_ctime[0]; - in->win_mtime[0] = oh->win_mtime[0]; - in->win_atime[1] = oh->win_atime[1]; - in->win_ctime[1] = oh->win_ctime[1]; - in->win_mtime[1] = oh->win_mtime[1]; -#else - in->yst_uid = oh->yst_uid; - in->yst_gid = oh->yst_gid; - in->yst_atime = oh->yst_atime; - in->yst_mtime = oh->yst_mtime; - in->yst_ctime = oh->yst_ctime; - in->yst_rdev = oh->yst_rdev; -#endif - - if (oh->shadowsObject > 0) - yaffs_HandleShadowedObject(dev, - oh-> - shadowsObject, - 1); - - - yaffs_SetObjectName(in, oh->name); - parent = - yaffs_FindOrCreateObjectByNumber - (dev, oh->parentObjectId, - YAFFS_OBJECT_TYPE_DIRECTORY); - - fileSize = oh->fileSize; - isShrink = oh->isShrink; - equivalentObjectId = oh->equivalentObjectId; - - } else { - in->variantType = tags.extraObjectType; - parent = - yaffs_FindOrCreateObjectByNumber - (dev, tags.extraParentObjectId, - YAFFS_OBJECT_TYPE_DIRECTORY); - fileSize = tags.extraFileLength; - isShrink = tags.extraIsShrinkHeader; - equivalentObjectId = tags.extraEquivalentObjectId; - in->lazyLoaded = 1; - - } - in->dirty = 0; - - if (!parent) - alloc_failed = 1; - - /* directory stuff... - * hook up to parent - */ - - if (parent && parent->variantType == - YAFFS_OBJECT_TYPE_UNKNOWN) { - /* Set up as a directory */ - parent->variantType = - YAFFS_OBJECT_TYPE_DIRECTORY; - YINIT_LIST_HEAD(&parent->variant. - directoryVariant. - children); - } else if (!parent || parent->variantType != - YAFFS_OBJECT_TYPE_DIRECTORY) { - /* Hoosterman, another problem.... - * We're trying to use a non-directory as a directory - */ - - T(YAFFS_TRACE_ERROR, - (TSTR - ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." - TENDSTR))); - parent = dev->lostNFoundDir; - } - - yaffs_AddObjectToDirectory(parent, in); - - itsUnlinked = (parent == dev->deletedDir) || - (parent == dev->unlinkedDir); - - if (isShrink) { - /* Mark the block as having a shrinkHeader */ - bi->hasShrinkHeader = 1; - } - - /* Note re hardlinks. - * Since we might scan a hardlink before its equivalent object is scanned - * we put them all in a list. - * After scanning is complete, we should have all the objects, so we run - * through this list and fix up all the chains. - */ - - switch (in->variantType) { - case YAFFS_OBJECT_TYPE_UNKNOWN: - /* Todo got a problem */ - break; - case YAFFS_OBJECT_TYPE_FILE: - - if (in->variant.fileVariant. - scannedFileSize < fileSize) { - /* This covers the case where the file size is greater - * than where the data is - * This will happen if the file is resized to be larger - * than its current data extents. - */ - in->variant.fileVariant.fileSize = fileSize; - in->variant.fileVariant.scannedFileSize = - in->variant.fileVariant.fileSize; - } - - if (isShrink && - in->variant.fileVariant.shrinkSize > fileSize) { - in->variant.fileVariant.shrinkSize = fileSize; - } - - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - if (!itsUnlinked) { - in->variant.hardLinkVariant.equivalentObjectId = - equivalentObjectId; - in->hardLinks.next = - (struct ylist_head *) hardList; - hardList = in; - } - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - /* Do nothing */ - break; - case YAFFS_OBJECT_TYPE_SPECIAL: - /* Do nothing */ - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - if (oh) { - in->variant.symLinkVariant.alias = - yaffs_CloneString(oh->alias); - if (!in->variant.symLinkVariant.alias) - alloc_failed = 1; - } - break; - } - - } - - } - - } /* End of scanning for each chunk */ - - if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { - /* If we got this far while scanning, then the block is fully allocated. */ - state = YAFFS_BLOCK_STATE_FULL; - } - - bi->blockState = state; - - /* Now let's see if it was dirty */ - if (bi->pagesInUse == 0 && - !bi->hasShrinkHeader && - bi->blockState == YAFFS_BLOCK_STATE_FULL) { - yaffs_BlockBecameDirty(dev, blk); - } - - } - - if (altBlockIndex) - YFREE_ALT(blockIndex); - else - YFREE(blockIndex); - - /* Ok, we've done all the scanning. - * Fix up the hard link chains. - * We should now have scanned all the objects, now it's time to add these - * hardlinks. - */ - yaffs_HardlinkFixup(dev, hardList); - - - yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); - - if (alloc_failed) { - T(YAFFS_TRACE_ERROR, (TSTR("malloc failed in yaffs_ScanBackwards" TENDSTR))); - return YAFFS_FAIL; - } - - T(YAFFS_TRACE_SCAN, (TSTR("yaffs_ScanBackwards ends" TENDSTR))); - - return YAFFS_OK; -} -#endif // !CYGSEM_FS_YAFFS_OMIT_YAFFS2_CODE - -/*------------------------------ Directory Functions ----------------------------- */ - -static void yaffs_VerifyObjectInDirectory(yaffs_Object *obj) -{ - struct ylist_head *lh; - yaffs_Object *listObj; - - int count = 0; - - if (!obj) { - T(YAFFS_TRACE_ALWAYS, (TSTR("No object to verify" TENDSTR))); - YBUG(); - return; - } - - if (yaffs_SkipVerification(obj->myDev)) - return; - - if (!obj->parent) { - T(YAFFS_TRACE_ALWAYS, (TSTR("Object does not have parent" TENDSTR))); - YBUG(); - return; - } - - if (obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, (TSTR("Parent is not directory" TENDSTR))); - YBUG(); - } - - /* Iterate through the objects in each hash entry */ - - ylist_for_each(lh, &obj->parent->variant.directoryVariant.children) { - if (lh) { - listObj = ylist_entry(lh, yaffs_Object, siblings); - yaffs_VerifyObject(listObj); - if (obj == listObj) - count++; - } - } - - if (count != 1) { - T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory %d times" TENDSTR), count)); - YBUG(); - } -} - -static void yaffs_VerifyDirectory(yaffs_Object *directory) -{ - struct ylist_head *lh; - yaffs_Object *listObj; - - if (!directory) { - YBUG(); - return; - } - - if (yaffs_SkipFullVerification(directory->myDev)) - return; - - if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, (TSTR("Directory has wrong type: %d" TENDSTR), directory->variantType)); - YBUG(); - } - - /* Iterate through the objects in each hash entry */ - - ylist_for_each(lh, &directory->variant.directoryVariant.children) { - if (lh) { - listObj = ylist_entry(lh, yaffs_Object, siblings); - if (listObj->parent != directory) { - T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory list has wrong parent %p" TENDSTR), listObj->parent)); - YBUG(); - } - yaffs_VerifyObjectInDirectory(listObj); - } - } -} - -/* - *yaffs_UpdateParent() handles fixing a directories mtime and ctime when a new - * link (ie. name) is created or deleted in the directory. - * - * ie. - * create dir/a : update dir's mtime/ctime - * rm dir/a: update dir's mtime/ctime - * modify dir/a: don't update dir's mtimme/ctime - */ - -static void yaffs_UpdateParent(yaffs_Object *obj) -{ - if(!obj) - return; - - obj->dirty = 1; - obj->yst_mtime = obj->yst_ctime = Y_CURRENT_TIME; - - yaffs_UpdateObjectHeader(obj,NULL,0,0,0); -} - -static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj) -{ - yaffs_Device *dev = obj->myDev; - yaffs_Object *parent; - - yaffs_VerifyObjectInDirectory(obj); - parent = obj->parent; - - yaffs_VerifyDirectory(parent); - - if (dev && dev->removeObjectCallback) - dev->removeObjectCallback(obj); - - - ylist_del_init(&obj->siblings); - obj->parent = NULL; - - yaffs_VerifyDirectory(parent); -} - -static void yaffs_AddObjectToDirectory(yaffs_Object *directory, - yaffs_Object *obj) -{ - if (!directory) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragedy: Trying to add an object to a null pointer directory" - TENDSTR))); - YBUG(); - return; - } - if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragedy: Trying to add an object to a non-directory" - TENDSTR))); - YBUG(); - } - - if (obj->siblings.prev == NULL) { - /* Not initialised */ - YBUG(); - } - - - yaffs_VerifyDirectory(directory); - - yaffs_RemoveObjectFromDirectory(obj); - - - /* Now add it */ - ylist_add(&obj->siblings, &directory->variant.directoryVariant.children); - obj->parent = directory; - - if (directory == obj->myDev->unlinkedDir - || directory == obj->myDev->deletedDir) { - obj->unlinked = 1; - obj->myDev->nUnlinkedFiles++; - obj->renameAllowed = 0; - } - - yaffs_VerifyDirectory(directory); - yaffs_VerifyObjectInDirectory(obj); -} - -yaffs_Object *yaffs_FindObjectByName(yaffs_Object *directory, - const YCHAR *name) -{ - int sum; - - struct ylist_head *i; - YCHAR buffer[YAFFS_MAX_NAME_LENGTH + 1]; - - yaffs_Object *l; - - if (!name) - return NULL; - - if (!directory) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragedy: yaffs_FindObjectByName: null pointer directory" - TENDSTR))); - YBUG(); - return NULL; - } - if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR))); - YBUG(); - } - - sum = yaffs_CalcNameSum(name); - - ylist_for_each(i, &directory->variant.directoryVariant.children) { - if (i) { - l = ylist_entry(i, yaffs_Object, siblings); - - if (l->parent != directory) - YBUG(); - - yaffs_CheckObjectDetailsLoaded(l); - - /* Special case for lost-n-found */ - if (l->objectId == YAFFS_OBJECTID_LOSTNFOUND) { - if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0) - return l; - } else if (yaffs_SumCompare(l->sum, sum) || l->hdrChunk <= 0) { - /* LostnFound chunk called Objxxx - * Do a real check - */ - yaffs_GetObjectName(l, buffer, - YAFFS_MAX_NAME_LENGTH + 1); - if (yaffs_strncmp(name, buffer, YAFFS_MAX_NAME_LENGTH) == 0) - return l; - } - } - } - - return NULL; -} - - -#if 0 -int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir, - int (*fn) (yaffs_Object *)) -{ - struct ylist_head *i; - yaffs_Object *l; - - if (!theDir) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragedy: yaffs_FindObjectByName: null pointer directory" - TENDSTR))); - YBUG(); - return YAFFS_FAIL; - } - if (theDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR))); - YBUG(); - return YAFFS_FAIL; - } - - ylist_for_each(i, &theDir->variant.directoryVariant.children) { - if (i) { - l = ylist_entry(i, yaffs_Object, siblings); - if (l && !fn(l)) - return YAFFS_FAIL; - } - } - - return YAFFS_OK; - -} -#endif - -/* GetEquivalentObject dereferences any hard links to get to the - * actual object. - */ - -yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj) -{ - if (obj && obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { - /* We want the object id of the equivalent object, not this one */ - obj = obj->variant.hardLinkVariant.equivalentObject; - yaffs_CheckObjectDetailsLoaded(obj); - } - return obj; -} - -int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize) -{ - memset(name, 0, buffSize * sizeof(YCHAR)); - - yaffs_CheckObjectDetailsLoaded(obj); - - if (obj->objectId == YAFFS_OBJECTID_LOSTNFOUND) { - yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffSize - 1); - } else if (obj->hdrChunk <= 0) { - YCHAR locName[20]; - YCHAR numString[20]; - YCHAR *x = &numString[19]; - unsigned v = obj->objectId; - numString[19] = 0; - while (v > 0) { - x--; - *x = '0' + (v % 10); - v /= 10; - } - /* make up a name */ - yaffs_strcpy(locName, YAFFS_LOSTNFOUND_PREFIX); - yaffs_strcat(locName, x); - yaffs_strncpy(name, locName, buffSize - 1); - - } -#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM - else if (obj->shortName[0]) - yaffs_strcpy(name, obj->shortName); -#endif - else { - int result; - __u8 *buffer = yaffs_GetTempBuffer(obj->myDev, __LINE__); - - yaffs_ObjectHeader *oh = (yaffs_ObjectHeader *) buffer; - - memset(buffer, 0, obj->myDev->nDataBytesPerChunk); - - if (obj->hdrChunk > 0) { - result = yaffs_ReadChunkWithTagsFromNAND(obj->myDev, - obj->hdrChunk, buffer, - NULL); - } - yaffs_strncpy(name, oh->name, buffSize - 1); - - yaffs_ReleaseTempBuffer(obj->myDev, buffer, __LINE__); - } - - return yaffs_strlen(name); -} - -int yaffs_GetObjectFileLength(yaffs_Object *obj) -{ - /* Dereference any hard linking */ - obj = yaffs_GetEquivalentObject(obj); - - if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) - return obj->variant.fileVariant.fileSize; - if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) - return yaffs_strlen(obj->variant.symLinkVariant.alias); - else { - /* Only a directory should drop through to here */ - return obj->myDev->nDataBytesPerChunk; - } -} - -int yaffs_GetObjectLinkCount(yaffs_Object *obj) -{ - int count = 0; - struct ylist_head *i; - - if (!obj->unlinked) - count++; /* the object itself */ - - ylist_for_each(i, &obj->hardLinks) - count++; /* add the hard links; */ - - return count; -} - -int yaffs_GetObjectInode(yaffs_Object *obj) -{ - obj = yaffs_GetEquivalentObject(obj); - - return obj->objectId; -} - -unsigned yaffs_GetObjectType(yaffs_Object *obj) -{ - obj = yaffs_GetEquivalentObject(obj); - - switch (obj->variantType) { - case YAFFS_OBJECT_TYPE_FILE: - return DT_REG; - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - return DT_DIR; - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - return DT_LNK; - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - return DT_REG; - break; - case YAFFS_OBJECT_TYPE_SPECIAL: - if (S_ISFIFO(obj->yst_mode)) - return DT_FIFO; - if (S_ISCHR(obj->yst_mode)) - return DT_CHR; - if (S_ISBLK(obj->yst_mode)) - return DT_BLK; - if (S_ISSOCK(obj->yst_mode)) - return DT_SOCK; - default: - return DT_REG; - break; - } -} - -YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj) -{ - obj = yaffs_GetEquivalentObject(obj); - if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) - return yaffs_CloneString(obj->variant.symLinkVariant.alias); - else - return yaffs_CloneString(_Y("")); -} - -#ifndef CONFIG_YAFFS_WINCE - -int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr) -{ - unsigned int valid = attr->ia_valid; - - if (valid & ATTR_MODE) - obj->yst_mode = attr->ia_mode; - if (valid & ATTR_UID) - obj->yst_uid = attr->ia_uid; - if (valid & ATTR_GID) - obj->yst_gid = attr->ia_gid; - - if (valid & ATTR_ATIME) - obj->yst_atime = Y_TIME_CONVERT(attr->ia_atime); - if (valid & ATTR_CTIME) - obj->yst_ctime = Y_TIME_CONVERT(attr->ia_ctime); - if (valid & ATTR_MTIME) - obj->yst_mtime = Y_TIME_CONVERT(attr->ia_mtime); - - if (valid & ATTR_SIZE) - yaffs_ResizeFile(obj, attr->ia_size); - - yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0); - - return YAFFS_OK; - -} -int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr) -{ - unsigned int valid = 0; - - attr->ia_mode = obj->yst_mode; - valid |= ATTR_MODE; - attr->ia_uid = obj->yst_uid; - valid |= ATTR_UID; - attr->ia_gid = obj->yst_gid; - valid |= ATTR_GID; - - Y_TIME_CONVERT(attr->ia_atime) = obj->yst_atime; - valid |= ATTR_ATIME; - Y_TIME_CONVERT(attr->ia_ctime) = obj->yst_ctime; - valid |= ATTR_CTIME; - Y_TIME_CONVERT(attr->ia_mtime) = obj->yst_mtime; - valid |= ATTR_MTIME; - - attr->ia_size = yaffs_GetFileSize(obj); - valid |= ATTR_SIZE; - - attr->ia_valid = valid; - - return YAFFS_OK; -} - -#endif - -#if 0 -int yaffs_DumpObject(yaffs_Object *obj) -{ - YCHAR name[257]; - - yaffs_GetObjectName(obj, name, YAFFS_MAX_NAME_LENGTH + 1); - - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("Object %d, inode %d \"%s\"\n dirty %d valid %d serial %d sum %d" - " chunk %d type %d size %d\n" - TENDSTR), obj->objectId, yaffs_GetObjectInode(obj), name, - obj->dirty, obj->valid, obj->serial, obj->sum, obj->hdrChunk, - yaffs_GetObjectType(obj), yaffs_GetObjectFileLength(obj))); - - return YAFFS_OK; -} -#endif - -/*---------------------------- Initialisation code -------------------------------------- */ - -static int yaffs_CheckDevFunctions(const yaffs_Device *dev) -{ - - /* Common functions, gotta have */ - if (!dev->eraseBlockInNAND || !dev->initialiseNAND) - return 0; - -#ifdef CONFIG_YAFFS_YAFFS2 - - /* Can use the "with tags" style interface for yaffs1 or yaffs2 */ - if (dev->writeChunkWithTagsToNAND && - dev->readChunkWithTagsFromNAND && - !dev->writeChunkToNAND && - !dev->readChunkFromNAND && - dev->markNANDBlockBad && dev->queryNANDBlock) - return 1; -#endif - - /* Can use the "spare" style interface for yaffs1 */ - if (!dev->isYaffs2 && - !dev->writeChunkWithTagsToNAND && - !dev->readChunkWithTagsFromNAND && - dev->writeChunkToNAND && - dev->readChunkFromNAND && - !dev->markNANDBlockBad && !dev->queryNANDBlock) - return 1; - - return 0; /* bad */ -} - - -static int yaffs_CreateInitialDirectories(yaffs_Device *dev) -{ - /* Initialise the unlinked, deleted, root and lost and found directories */ - - dev->lostNFoundDir = dev->rootDir = NULL; - dev->unlinkedDir = dev->deletedDir = NULL; - - dev->unlinkedDir = - yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_UNLINKED, S_IFDIR); - - dev->deletedDir = - yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_DELETED, S_IFDIR); - - dev->rootDir = - yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_ROOT, - YAFFS_ROOT_MODE | S_IFDIR); - dev->lostNFoundDir = - yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_LOSTNFOUND, - YAFFS_LOSTNFOUND_MODE | S_IFDIR); - - if (dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir) { - yaffs_AddObjectToDirectory(dev->rootDir, dev->lostNFoundDir); - return YAFFS_OK; - } - - return YAFFS_FAIL; -} - -int yaffs_GutsInitialise(yaffs_Device *dev) -{ - int init_failed = 0; - unsigned x; - int bits; - - T(YAFFS_TRACE_TRACING, (TSTR("yaffs: yaffs_GutsInitialise()" TENDSTR))); - - /* Check stuff that must be set */ - - if (!dev) { - T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Need a device" TENDSTR))); - return YAFFS_FAIL; - } - - dev->internalStartBlock = dev->startBlock; - dev->internalEndBlock = dev->endBlock; - dev->blockOffset = 0; - dev->chunkOffset = 0; - dev->nFreeChunks = 0; - - dev->gcBlock = -1; - - if (dev->startBlock == 0) { - dev->internalStartBlock = dev->startBlock + 1; - dev->internalEndBlock = dev->endBlock + 1; - dev->blockOffset = 1; - dev->chunkOffset = dev->nChunksPerBlock; - } - - /* Check geometry parameters. */ - - if ((!dev->inbandTags && dev->isYaffs2 && dev->totalBytesPerChunk < 1024) || - (!dev->isYaffs2 && dev->totalBytesPerChunk < 512) || - (dev->inbandTags && !dev->isYaffs2) || - dev->nChunksPerBlock < 2 || - dev->nReservedBlocks < 2 || - dev->internalStartBlock <= 0 || - dev->internalEndBlock <= 0 || - dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2)) { /* otherwise it is too small */ - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s, inbandTags %d " - TENDSTR), dev->totalBytesPerChunk, dev->isYaffs2 ? "2" : "", dev->inbandTags)); - return YAFFS_FAIL; - } - - if (yaffs_InitialiseNAND(dev) != YAFFS_OK) { - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: InitialiseNAND failed" TENDSTR))); - return YAFFS_FAIL; - } - - /* Sort out space for inband tags, if required */ - if (dev->inbandTags) - dev->nDataBytesPerChunk = dev->totalBytesPerChunk - sizeof(yaffs_PackedTags2TagsPart); - else - dev->nDataBytesPerChunk = dev->totalBytesPerChunk; - - /* Got the right mix of functions? */ - if (!yaffs_CheckDevFunctions(dev)) { - /* Function missing */ - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("yaffs: device function(s) missing or wrong\n" TENDSTR))); - - return YAFFS_FAIL; - } - - /* This is really a compilation check. */ - if (!yaffs_CheckStructures()) { - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs_CheckStructures failed\n" TENDSTR))); - return YAFFS_FAIL; - } - - if (dev->isMounted) { - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: device already mounted\n" TENDSTR))); - return YAFFS_FAIL; - } - - /* Finished with most checks. One or two more checks happen later on too. */ - - dev->isMounted = 1; - - /* OK now calculate a few things for the device */ - - /* - * Calculate all the chunk size manipulation numbers: - */ - x = dev->nDataBytesPerChunk; - /* We always use dev->chunkShift and dev->chunkDiv */ - dev->chunkShift = Shifts(x); - x >>= dev->chunkShift; - dev->chunkDiv = x; - /* We only use chunk mask if chunkDiv is 1 */ - dev->chunkMask = (1<<dev->chunkShift) - 1; - - /* - * Calculate chunkGroupBits. - * We need to find the next power of 2 > than internalEndBlock - */ - - x = dev->nChunksPerBlock * (dev->internalEndBlock + 1); - - bits = ShiftsGE(x); - - /* Set up tnode width if wide tnodes are enabled. */ - if (!dev->wideTnodesDisabled) { - /* bits must be even so that we end up with 32-bit words */ - if (bits & 1) - bits++; - if (bits < 16) - dev->tnodeWidth = 16; - else - dev->tnodeWidth = bits; - } else - dev->tnodeWidth = 16; - - dev->tnodeMask = (1<<dev->tnodeWidth)-1; - - /* Level0 Tnodes are 16 bits or wider (if wide tnodes are enabled), - * so if the bitwidth of the - * chunk range we're using is greater than 16 we need - * to figure out chunk shift and chunkGroupSize - */ - - if (bits <= dev->tnodeWidth) - dev->chunkGroupBits = 0; - else - dev->chunkGroupBits = bits - dev->tnodeWidth; - - - dev->chunkGroupSize = 1 << dev->chunkGroupBits; - - if (dev->nChunksPerBlock < dev->chunkGroupSize) { - /* We have a problem because the soft delete won't work if - * the chunk group size > chunks per block. - * This can be remedied by using larger "virtual blocks". - */ - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: chunk group too large\n" TENDSTR))); - - return YAFFS_FAIL; - } - - /* OK, we've finished verifying the device, lets continue with initialisation */ - - /* More device initialisation */ - dev->garbageCollections = 0; - dev->passiveGarbageCollections = 0; - dev->currentDirtyChecker = 0; - dev->bufferedBlock = -1; - dev->doingBufferedBlockRewrite = 0; - dev->nDeletedFiles = 0; - dev->nBackgroundDeletions = 0; - dev->nUnlinkedFiles = 0; - dev->eccFixed = 0; - dev->eccUnfixed = 0; - dev->tagsEccFixed = 0; - dev->tagsEccUnfixed = 0; - dev->nErasureFailures = 0; - dev->nErasedBlocks = 0; - dev->isDoingGC = 0; - dev->hasPendingPrioritisedGCs = 1; /* Assume the worst for now, will get fixed on first GC */ - - /* Initialise temporary buffers and caches. */ - if (!yaffs_InitialiseTempBuffers(dev)) - init_failed = 1; - - dev->srCache = NULL; - dev->gcCleanupList = NULL; - - - if (!init_failed && - dev->nShortOpCaches > 0) { - int i; - void *buf; - int srCacheBytes = dev->nShortOpCaches * sizeof(yaffs_ChunkCache); - - if (dev->nShortOpCaches > YAFFS_MAX_SHORT_OP_CACHES) - dev->nShortOpCaches = YAFFS_MAX_SHORT_OP_CACHES; - - dev->srCache = YMALLOC(srCacheBytes); - - buf = (__u8 *) dev->srCache; - - if (dev->srCache) - memset(dev->srCache, 0, srCacheBytes); - - for (i = 0; i < dev->nShortOpCaches && buf; i++) { - dev->srCache[i].object = NULL; - dev->srCache[i].lastUse = 0; - dev->srCache[i].dirty = 0; - dev->srCache[i].data = buf = YMALLOC_DMA(dev->totalBytesPerChunk); - } - if (!buf) - init_failed = 1; - - dev->srLastUse = 0; - } - - dev->cacheHits = 0; - - if (!init_failed) { - dev->gcCleanupList = YMALLOC(dev->nChunksPerBlock * sizeof(__u32)); - if (!dev->gcCleanupList) - init_failed = 1; - } - - if (dev->isYaffs2) - dev->useHeaderFileSize = 1; - - if (!init_failed && !yaffs_InitialiseBlocks(dev)) - init_failed = 1; - - yaffs_InitialiseTnodes(dev); - yaffs_InitialiseObjects(dev); - - if (!init_failed && !yaffs_CreateInitialDirectories(dev)) - init_failed = 1; - - - if (!init_failed) { - /* Now scan the flash. */ - if (dev->isYaffs2) { -#ifdef CYGSEM_FS_YAFFS_OMIT_YAFFS2_CODE - init_failed = 1; -#else - if (yaffs_CheckpointRestore(dev)) { - yaffs_CheckObjectDetailsLoaded(dev->rootDir); - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: restored from checkpoint" TENDSTR))); - } else { - - /* Clean up the mess caused by an aborted checkpoint load - * and scan backwards. - */ - yaffs_DeinitialiseBlocks(dev); - yaffs_DeinitialiseTnodes(dev); - yaffs_DeinitialiseObjects(dev); - - - dev->nErasedBlocks = 0; - dev->nFreeChunks = 0; - dev->allocationBlock = -1; - dev->allocationPage = -1; - dev->nDeletedFiles = 0; - dev->nUnlinkedFiles = 0; - dev->nBackgroundDeletions = 0; - dev->oldestDirtySequence = 0; - - if (!init_failed && !yaffs_InitialiseBlocks(dev)) - init_failed = 1; - - yaffs_InitialiseTnodes(dev); - yaffs_InitialiseObjects(dev); - - if (!init_failed && !yaffs_CreateInitialDirectories(dev)) - init_failed = 1; - - if (!init_failed && !yaffs_ScanBackwards(dev)) - init_failed = 1; - } -#endif // !CYGSEM_FS_YAFFS_OMIT_YAFFS2_CODE - } else /* !dev->isYaffs2 */ { -#ifdef CONFIG_YAFFS_NO_YAFFS1 - init_failed = 1; -#else - if (!yaffs_Scan(dev)) - init_failed = 1; -#endif - } - - yaffs_StripDeletedObjects(dev); - yaffs_FixHangingObjects(dev); - if(dev->emptyLostAndFound) - yaffs_EmptyLostAndFound(dev); - } - - if (init_failed) { - /* Clean up the mess */ - T(YAFFS_TRACE_TRACING, - (TSTR("yaffs: yaffs_GutsInitialise() aborted.\n" TENDSTR))); - - yaffs_Deinitialise(dev); - return YAFFS_FAIL; - } - - /* Zero out stats */ - dev->nPageReads = 0; - dev->nPageWrites = 0; - dev->nBlockErasures = 0; - dev->nGCCopies = 0; - dev->nRetriedWrites = 0; - - dev->nRetiredBlocks = 0; - - yaffs_VerifyFreeChunks(dev); - yaffs_VerifyBlocks(dev); - - /* Clean up any aborted checkpoint data */ - if(!dev->isCheckpointed && dev->blocksInCheckpoint > 0) - yaffs_InvalidateCheckpoint(dev); - - T(YAFFS_TRACE_TRACING, - (TSTR("yaffs: yaffs_GutsInitialise() done.\n" TENDSTR))); - return YAFFS_OK; - -} - -void yaffs_Deinitialise(yaffs_Device *dev) -{ - if (dev->isMounted) { - int i; - - yaffs_DeinitialiseBlocks(dev); - yaffs_DeinitialiseTnodes(dev); - yaffs_DeinitialiseObjects(dev); - if (dev->nShortOpCaches > 0 && - dev->srCache) { - - for (i = 0; i < dev->nShortOpCaches; i++) { - if (dev->srCache[i].data) - YFREE(dev->srCache[i].data); - dev->srCache[i].data = NULL; - } - - YFREE(dev->srCache); - dev->srCache = NULL; - } - - YFREE(dev->gcCleanupList); - - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) - YFREE(dev->tempBuffer[i].buffer); - - dev->isMounted = 0; - - if (dev->deinitialiseNAND) - dev->deinitialiseNAND(dev); - } -} - -static int yaffs_CountFreeChunks(yaffs_Device *dev) -{ - int nFree; - int b; - - yaffs_BlockInfo *blk; - - for (nFree = 0, b = dev->internalStartBlock; b <= dev->internalEndBlock; - b++) { - blk = yaffs_GetBlockInfo(dev, b); - - switch (blk->blockState) { - case YAFFS_BLOCK_STATE_EMPTY: - case YAFFS_BLOCK_STATE_ALLOCATING: - case YAFFS_BLOCK_STATE_COLLECTING: - case YAFFS_BLOCK_STATE_FULL: - nFree += - (dev->nChunksPerBlock - blk->pagesInUse + - blk->softDeletions); - break; - default: - break; - } - } - - return nFree; -} - -int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev) -{ - /* This is what we report to the outside world */ - - int nFree; - int nDirtyCacheChunks; - int blocksForCheckpoint; - int i; - -#if 1 - nFree = dev->nFreeChunks; -#else - nFree = yaffs_CountFreeChunks(dev); -#endif - - nFree += dev->nDeletedFiles; - - /* Now count the number of dirty chunks in the cache and subtract those */ - - for (nDirtyCacheChunks = 0, i = 0; i < dev->nShortOpCaches; i++) { - if (dev->srCache[i].dirty) - nDirtyCacheChunks++; - } - - nFree -= nDirtyCacheChunks; - - nFree -= ((dev->nReservedBlocks + 1) * dev->nChunksPerBlock); - - /* Now we figure out how much to reserve for the checkpoint and report that... */ - blocksForCheckpoint = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint; - if (blocksForCheckpoint < 0) - blocksForCheckpoint = 0; - - nFree -= (blocksForCheckpoint * dev->nChunksPerBlock); - - if (nFree < 0) - nFree = 0; - - return nFree; - -} - -static int yaffs_freeVerificationFailures; - -static void yaffs_VerifyFreeChunks(yaffs_Device *dev) -{ - int counted; - int difference; - - if (yaffs_SkipVerification(dev)) - return; - - counted = yaffs_CountFreeChunks(dev); - - difference = dev->nFreeChunks - counted; - - if (difference) { - T(YAFFS_TRACE_ALWAYS, - (TSTR("Freechunks verification failure %d %d %d" TENDSTR), - dev->nFreeChunks, counted, difference)); - yaffs_freeVerificationFailures++; - } -} - -/*---------------------------------------- YAFFS test code ----------------------*/ - -#define yaffs_CheckStruct(structure, syze, name) \ - do { \ - if (sizeof(structure) != syze) { \ - T(YAFFS_TRACE_ALWAYS,(TSTR("%s should be %d but is %u\n" TENDSTR),\ - name, syze, (unsigned)sizeof(structure))); \ - return YAFFS_FAIL; \ - } \ - } while (0) - -static int yaffs_CheckStructures(void) -{ -/* yaffs_CheckStruct(yaffs_Tags,8,"yaffs_Tags"); */ -/* yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion"); */ -/* yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare"); */ -#ifndef CONFIG_YAFFS_TNODE_LIST_DEBUG - yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode"); -#endif -#ifndef CONFIG_YAFFS_WINCE - yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader"); -#endif - return YAFFS_OK; - (void) yaffs_DeleteWorker; - (void) yaffs_VerifyTnodeWorker; -}
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_guts.h +++ /dev/null @@ -1,915 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -#ifndef __YAFFS_GUTS_H__ -#define __YAFFS_GUTS_H__ - -#include "devextras.h" -#include "yportenv.h" - -#define YAFFS_OK 1 -#define YAFFS_FAIL 0 - -/* Give us a Y=0x59, - * Give us an A=0x41, - * Give us an FF=0xFF - * Give us an S=0x53 - * And what have we got... - */ -#define YAFFS_MAGIC 0x5941FF53 - -#define YAFFS_NTNODES_LEVEL0 16 -#define YAFFS_TNODES_LEVEL0_BITS 4 -#define YAFFS_TNODES_LEVEL0_MASK 0xf - -#define YAFFS_NTNODES_INTERNAL (YAFFS_NTNODES_LEVEL0 / 2) -#define YAFFS_TNODES_INTERNAL_BITS (YAFFS_TNODES_LEVEL0_BITS - 1) -#define YAFFS_TNODES_INTERNAL_MASK 0x7 -#define YAFFS_TNODES_MAX_LEVEL 6 - -#ifndef CONFIG_YAFFS_NO_YAFFS1 -#define YAFFS_BYTES_PER_SPARE 16 -#define YAFFS_BYTES_PER_CHUNK 512 -#define YAFFS_CHUNK_SIZE_SHIFT 9 -#define YAFFS_CHUNKS_PER_BLOCK 32 -#define YAFFS_BYTES_PER_BLOCK (YAFFS_CHUNKS_PER_BLOCK*YAFFS_BYTES_PER_CHUNK) -#endif - -#define YAFFS_MIN_YAFFS2_CHUNK_SIZE 1024 -#define YAFFS_MIN_YAFFS2_SPARE_SIZE 32 - -#define YAFFS_MAX_CHUNK_ID 0x000FFFFF - -#define YAFFS_UNUSED_OBJECT_ID 0x0003FFFF - -#define YAFFS_ALLOCATION_NOBJECTS 100 -#define YAFFS_ALLOCATION_NTNODES 100 -#define YAFFS_ALLOCATION_NLINKS 100 - -#define YAFFS_NOBJECT_BUCKETS 256 - - -#define YAFFS_OBJECT_SPACE 0x40000 - -#define YAFFS_CHECKPOINT_VERSION 3 - -#ifdef CONFIG_YAFFS_UNICODE -#define YAFFS_MAX_NAME_LENGTH 127 -#define YAFFS_MAX_ALIAS_LENGTH 79 -#else -#define YAFFS_MAX_NAME_LENGTH 255 -#define YAFFS_MAX_ALIAS_LENGTH 159 -#endif - -#define YAFFS_SHORT_NAME_LENGTH 15 - -/* Some special object ids for pseudo objects */ -#define YAFFS_OBJECTID_ROOT 1 -#define YAFFS_OBJECTID_LOSTNFOUND 2 -#define YAFFS_OBJECTID_UNLINKED 3 -#define YAFFS_OBJECTID_DELETED 4 - -/* Sseudo object ids for checkpointing */ -#define YAFFS_OBJECTID_SB_HEADER 0x10 -#define YAFFS_OBJECTID_CHECKPOINT_DATA 0x20 -#define YAFFS_SEQUENCE_CHECKPOINT_DATA 0x21 - -/* */ - -#define YAFFS_MAX_SHORT_OP_CACHES 20 - -#define YAFFS_N_TEMP_BUFFERS CYGNUM_FS_YAFFS_TEMP_BUFFERS - -/* We limit the number attempts at sucessfully saving a chunk of data. - * Small-page devices have 32 pages per block; large-page devices have 64. - * Default to something in the order of 5 to 10 blocks worth of chunks. - */ -#define YAFFS_WR_ATTEMPTS (5*64) - -/* Sequence numbers are used in YAFFS2 to determine block allocation order. - * The range is limited slightly to help distinguish bad numbers from good. - * This also allows us to perhaps in the future use special numbers for - * special purposes. - * EFFFFF00 allows the allocation of 8 blocks per second (~1Mbytes) for 15 years, - * and is a larger number than the lifetime of a 2GB device. - */ -#define YAFFS_LOWEST_SEQUENCE_NUMBER 0x00001000 -#define YAFFS_HIGHEST_SEQUENCE_NUMBER 0xEFFFFF00 - -/* Special sequence number for bad block that failed to be marked bad */ -#define YAFFS_SEQUENCE_BAD_BLOCK 0xFFFF0000 - -/* ChunkCache is used for short read/write operations.*/ -typedef struct { - struct yaffs_ObjectStruct *object; - int chunkId; - int lastUse; - int dirty; - int nBytes; /* Only valid if the cache is dirty */ - int locked; /* Can't push out or flush while locked. */ -#ifdef CONFIG_YAFFS_YAFFS2 - __u8 *data; -#else - __u8 data[YAFFS_BYTES_PER_CHUNK]; -#endif -} yaffs_ChunkCache; - - - -/* Tags structures in RAM - * NB This uses bitfield. Bitfields should not straddle a u32 boundary otherwise - * the structure size will get blown out. - */ - -#ifndef CONFIG_YAFFS_NO_YAFFS1 -typedef struct { - unsigned chunkId:20; - unsigned serialNumber:2; - unsigned byteCountLSB:10; - unsigned objectId:18; - unsigned ecc:12; - unsigned byteCountMSB:2; -} yaffs_Tags; - -typedef union { - yaffs_Tags asTags; - __u8 asBytes[8]; -} yaffs_TagsUnion; - -#endif - -/* Stuff used for extended tags in YAFFS2 */ - -typedef enum { - YAFFS_ECC_RESULT_UNKNOWN, - YAFFS_ECC_RESULT_NO_ERROR, - YAFFS_ECC_RESULT_FIXED, - YAFFS_ECC_RESULT_UNFIXED -} yaffs_ECCResult; - -typedef enum { - YAFFS_OBJECT_TYPE_UNKNOWN, - YAFFS_OBJECT_TYPE_FILE, - YAFFS_OBJECT_TYPE_SYMLINK, - YAFFS_OBJECT_TYPE_DIRECTORY, - YAFFS_OBJECT_TYPE_HARDLINK, - YAFFS_OBJECT_TYPE_SPECIAL -} yaffs_ObjectType; - -#define YAFFS_OBJECT_TYPE_MAX YAFFS_OBJECT_TYPE_SPECIAL - -typedef struct { - - unsigned validMarker0; - unsigned chunkUsed; /* Status of the chunk: used or unused */ - unsigned objectId; /* If 0 then this is not part of an object (unused) */ - unsigned chunkId; /* If 0 then this is a header, else a data chunk */ - unsigned byteCount; /* Only valid for data chunks */ - - /* The following stuff only has meaning when we read */ - yaffs_ECCResult eccResult; - unsigned blockBad; - - /* YAFFS 1 stuff */ - unsigned chunkDeleted; /* The chunk is marked deleted */ - unsigned serialNumber; /* Yaffs1 2-bit serial number */ - - /* YAFFS2 stuff */ - unsigned sequenceNumber; /* The sequence number of this block */ - - /* Extra info if this is an object header (YAFFS2 only) */ - - unsigned extraHeaderInfoAvailable; /* There is extra info available if this is not zero */ - unsigned extraParentObjectId; /* The parent object */ - unsigned extraIsShrinkHeader; /* Is it a shrink header? */ - unsigned extraShadows; /* Does this shadow another object? */ - - yaffs_ObjectType extraObjectType; /* What object type? */ - - unsigned extraFileLength; /* Length if it is a file */ - unsigned extraEquivalentObjectId; /* Equivalent object Id if it is a hard link */ - - unsigned validMarker1; - -} yaffs_ExtendedTags; - -/* Spare structure for YAFFS1 */ -typedef struct { - __u8 tagByte0; - __u8 tagByte1; - __u8 tagByte2; - __u8 tagByte3; - __u8 pageStatus; /* set to 0 to delete the chunk */ - __u8 blockStatus; - __u8 tagByte4; - __u8 tagByte5; - __u8 ecc1[3]; - __u8 tagByte6; - __u8 tagByte7; - __u8 ecc2[3]; -} yaffs_Spare; - -/*Special structure for passing through to mtd */ -struct yaffs_NANDSpare { - yaffs_Spare spare; - int eccres1; - int eccres2; -}; - -/* Block data in RAM */ - -typedef enum { - YAFFS_BLOCK_STATE_UNKNOWN = 0, - - YAFFS_BLOCK_STATE_SCANNING, - YAFFS_BLOCK_STATE_NEEDS_SCANNING, - /* The block might have something on it (ie it is allocating or full, perhaps empty) - * but it needs to be scanned to determine its true state. - * This state is only valid during yaffs_Scan. - * NB We tolerate empty because the pre-scanner might be incapable of deciding - * However, if this state is returned on a YAFFS2 device, then we expect a sequence number - */ - - YAFFS_BLOCK_STATE_EMPTY, - /* This block is empty */ - - YAFFS_BLOCK_STATE_ALLOCATING, - /* This block is partially allocated. - * At least one page holds valid data. - * This is the one currently being used for page - * allocation. Should never be more than one of these - */ - - YAFFS_BLOCK_STATE_FULL, - /* All the pages in this block have been allocated. - */ - - YAFFS_BLOCK_STATE_DIRTY, - /* All pages have been allocated and deleted. - * Erase me, reuse me. - */ - - YAFFS_BLOCK_STATE_CHECKPOINT, - /* This block is assigned to holding checkpoint data. - */ - - YAFFS_BLOCK_STATE_COLLECTING, - /* This block is being garbage collected */ - - YAFFS_BLOCK_STATE_DEAD - /* This block has failed and is not in use */ -} yaffs_BlockState; - -#define YAFFS_NUMBER_OF_BLOCK_STATES (YAFFS_BLOCK_STATE_DEAD + 1) - - -typedef struct { - - int softDeletions:10; /* number of soft deleted pages */ - int pagesInUse:10; /* number of pages in use */ - unsigned blockState:4; /* One of the above block states. NB use unsigned because enum is sometimes an int */ - __u32 needsRetiring:1; /* Data has failed on this block, need to get valid data off */ - /* and retire the block. */ - __u32 skipErasedCheck:1; /* If this is set we can skip the erased check on this block */ - __u32 gcPrioritise:1; /* An ECC check or blank check has failed on this block. - It should be prioritised for GC */ - __u32 chunkErrorStrikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */ - -#ifdef CONFIG_YAFFS_YAFFS2 - __u32 hasShrinkHeader:1; /* This block has at least one shrink object header */ - __u32 sequenceNumber; /* block sequence number for yaffs2 */ -#endif - -} yaffs_BlockInfo; - -/* -------------------------- Object structure -------------------------------*/ -/* This is the object structure as stored on NAND */ - -typedef struct { - yaffs_ObjectType type; - - /* Apply to everything */ - int parentObjectId; - __u16 sum__NoLongerUsed; /* checksum of name. No longer used */ - YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; - - /* The following apply to directories, files, symlinks - not hard links */ - __u32 yst_mode; /* protection */ - -#ifdef CONFIG_YAFFS_WINCE - __u32 notForWinCE[5]; -#else - __u32 yst_uid; - __u32 yst_gid; - __u32 yst_atime; - __u32 yst_mtime; - __u32 yst_ctime; -#endif - - /* File size applies to files only */ - int fileSize; - - /* Equivalent object id applies to hard links only. */ - int equivalentObjectId; - - /* Alias is for symlinks only. */ - YCHAR alias[YAFFS_MAX_ALIAS_LENGTH + 1]; - - __u32 yst_rdev; /* device stuff for block and char devices (major/min) */ - -#ifdef CONFIG_YAFFS_WINCE - __u32 win_ctime[2]; - __u32 win_atime[2]; - __u32 win_mtime[2]; -#else - __u32 roomToGrow[6]; - -#endif - __u32 inbandShadowsObject; - __u32 inbandIsShrink; - - __u32 reservedSpace[2]; - int shadowsObject; /* This object header shadows the specified object if > 0 */ - - /* isShrink applies to object headers written when we shrink the file (ie resize) */ - __u32 isShrink; - -} yaffs_ObjectHeader; - -/*--------------------------- Tnode -------------------------- */ - -union yaffs_Tnode_union { -#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG - union yaffs_Tnode_union *internal[YAFFS_NTNODES_INTERNAL + 1]; -#else - union yaffs_Tnode_union *internal[YAFFS_NTNODES_INTERNAL]; -#endif -/* __u16 level0[YAFFS_NTNODES_LEVEL0]; */ - -}; - -typedef union yaffs_Tnode_union yaffs_Tnode; - -struct yaffs_TnodeList_struct { - struct yaffs_TnodeList_struct *next; - yaffs_Tnode *tnodes; -}; - -typedef struct yaffs_TnodeList_struct yaffs_TnodeList; - -/*------------------------ Object -----------------------------*/ -/* An object can be one of: - * - a directory (no data, has children links - * - a regular file (data.... not prunes :->). - * - a symlink [symbolic link] (the alias). - * - a hard link - */ - -typedef struct { - __u32 fileSize; - __u32 scannedFileSize; - __u32 shrinkSize; - int topLevel; - yaffs_Tnode *top; -} yaffs_FileStructure; - -typedef struct { - struct ylist_head children; /* list of child links */ -} yaffs_DirectoryStructure; - -typedef struct { - YCHAR *alias; -} yaffs_SymLinkStructure; - -typedef struct { - struct yaffs_ObjectStruct *equivalentObject; - __u32 equivalentObjectId; -} yaffs_HardLinkStructure; - -typedef union { - yaffs_FileStructure fileVariant; - yaffs_DirectoryStructure directoryVariant; - yaffs_SymLinkStructure symLinkVariant; - yaffs_HardLinkStructure hardLinkVariant; -} yaffs_ObjectVariant; - - - -struct yaffs_ObjectStruct { - __u8 deleted:1; /* This should only apply to unlinked files. */ - __u8 softDeleted:1; /* it has also been soft deleted */ - __u8 unlinked:1; /* An unlinked file. The file should be in the unlinked directory.*/ - __u8 fake:1; /* A fake object has no presence on NAND. */ - __u8 renameAllowed:1; /* Some objects are not allowed to be renamed. */ - __u8 unlinkAllowed:1; - __u8 dirty:1; /* the object needs to be written to flash */ - __u8 valid:1; /* When the file system is being loaded up, this - * object might be created before the data - * is available (ie. file data records appear before the header). - */ - __u8 lazyLoaded:1; /* This object has been lazy loaded and is missing some detail */ - - __u8 deferedFree:1; /* For Linux kernel. Object is removed from NAND, but is - * still in the inode cache. Free of object is defered. - * until the inode is released. - */ - __u8 beingCreated:1; /* This object is still being created so skip some checks. */ - __u8 isShadowed:1; /* This object is shadowed on the way to being renamed. */ - - __u8 serial; /* serial number of chunk in NAND. Cached here */ - __u16 sum; /* sum of the name to speed searching */ - - struct yaffs_DeviceStruct *myDev; /* The device I'm on */ - - struct ylist_head hashLink; /* list of objects in this hash bucket */ - - struct ylist_head hardLinks; /* all the equivalent hard linked objects */ - - /* directory structure stuff */ - /* also used for linking up the free list */ - struct yaffs_ObjectStruct *parent; - struct ylist_head siblings; - - /* Where's my object header in NAND? */ - int hdrChunk; - - int nDataChunks; /* Number of data chunks attached to the file. */ - - __u32 objectId; /* the object id value */ - - __u32 yst_mode; - -#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM - YCHAR shortName[YAFFS_SHORT_NAME_LENGTH + 1]; -#endif - -#ifndef __KERNEL__ - __u32 inUse; -#endif - -#ifdef CONFIG_YAFFS_WINCE - __u32 win_ctime[2]; - __u32 win_mtime[2]; - __u32 win_atime[2]; -#else - __u32 yst_uid; - __u32 yst_gid; - __u32 yst_atime; - __u32 yst_mtime; - __u32 yst_ctime; -#endif - - __u32 yst_rdev; - -#ifdef __KERNEL__ - struct inode *myInode; - -#endif - - yaffs_ObjectType variantType; - - yaffs_ObjectVariant variant; - -}; - -typedef struct yaffs_ObjectStruct yaffs_Object; - -struct yaffs_ObjectList_struct { - yaffs_Object *objects; - struct yaffs_ObjectList_struct *next; -}; - -typedef struct yaffs_ObjectList_struct yaffs_ObjectList; - -typedef struct { - struct ylist_head list; - int count; -} yaffs_ObjectBucket; - - -/* yaffs_CheckpointObject holds the definition of an object as dumped - * by checkpointing. - */ - -typedef struct { - int structType; - __u32 objectId; - __u32 parentId; - int hdrChunk; - yaffs_ObjectType variantType:3; - __u8 deleted:1; - __u8 softDeleted:1; - __u8 unlinked:1; - __u8 fake:1; - __u8 renameAllowed:1; - __u8 unlinkAllowed:1; - __u8 serial; - - int nDataChunks; - __u32 fileSizeOrEquivalentObjectId; -} yaffs_CheckpointObject; - -/*--------------------- Temporary buffers ---------------- - * - * These are chunk-sized working buffers. Each device has a few - */ - -typedef struct { - __u8 *buffer; - int line; /* track from whence this buffer was allocated */ - int maxLine; -} yaffs_TempBuffer; - -/*----------------- Device ---------------------------------*/ - - -struct yaffs_DeviceStruct { - struct ylist_head devList; - const char *name; - - /* Entry parameters set up way early. Yaffs sets up the rest.*/ - int nDataBytesPerChunk; /* Should be a power of 2 >= 512 */ - int nChunksPerBlock; /* does not need to be a power of 2 */ - int spareBytesPerChunk; /* spare area size */ - int startBlock; /* Start block we're allowed to use */ - int endBlock; /* End block we're allowed to use */ - int nReservedBlocks; /* We want this tuneable so that we can reduce */ - /* reserved blocks on NOR and RAM. */ - - - /* Stuff used by the shared space checkpointing mechanism */ - /* If this value is zero, then this mechanism is disabled */ - -/* int nCheckpointReservedBlocks; */ /* Blocks to reserve for checkpoint data */ - - - int nShortOpCaches; /* If <= 0, then short op caching is disabled, else - * the number of short op caches (don't use too many) - */ - - int useHeaderFileSize; /* Flag to determine if we should use file sizes from the header */ - - int useNANDECC; /* Flag to decide whether or not to use NANDECC on data (yaffs1) */ - int noTagsECC; /* Flag to decide whether or not to do ECC on packed tags (yaffs2) */ - - int disableLazyLoad; /* Disable lazy loading on this device */ - - void *genericDevice; /* Pointer to device context - * On an mtd this holds the mtd pointer. - */ - void *superBlock; - - /* NAND access functions (Must be set before calling YAFFS)*/ - - int (*writeChunkToNAND) (struct yaffs_DeviceStruct *dev, - int chunkInNAND, const __u8 *data, - const yaffs_Spare *spare); - int (*readChunkFromNAND) (struct yaffs_DeviceStruct *dev, - int chunkInNAND, __u8 *data, - yaffs_Spare *spare); - int (*eraseBlockInNAND) (struct yaffs_DeviceStruct *dev, - int blockInNAND); - int (*initialiseNAND) (struct yaffs_DeviceStruct *dev); - int (*deinitialiseNAND) (struct yaffs_DeviceStruct *dev); - -#ifdef CONFIG_YAFFS_YAFFS2 - int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct *dev, - int chunkInNAND, const __u8 *data, - const yaffs_ExtendedTags *tags); - int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct *dev, - int chunkInNAND, __u8 *data, - yaffs_ExtendedTags *tags); - int (*markNANDBlockBad) (struct yaffs_DeviceStruct *dev, int blockNo); - int (*queryNANDBlock) (struct yaffs_DeviceStruct *dev, int blockNo, - yaffs_BlockState *state, __u32 *sequenceNumber); -#endif - - int isYaffs2; - - /* The removeObjectCallback function must be supplied by OS flavours that - * need it. The Linux kernel does not use this, but yaffs direct does use - * it to implement the faster readdir - */ - void (*removeObjectCallback)(struct yaffs_ObjectStruct *obj); - - /* Callback to mark the superblock dirsty */ - void (*markSuperBlockDirty)(void *superblock); - - int wideTnodesDisabled; /* Set to disable wide tnodes */ - - YCHAR *pathDividers; /* String of legal path dividers */ - - - /* End of stuff that must be set before initialisation. */ - - /* Checkpoint control. Can be set before or after initialisation */ - __u8 skipCheckpointRead; - __u8 skipCheckpointWrite; - - /* Runtime parameters. Set up by YAFFS. */ - - __u16 chunkGroupBits; /* 0 for devices <= 32MB. else log2(nchunks) - 16 */ - __u16 chunkGroupSize; /* == 2^^chunkGroupBits */ - - /* Stuff to support wide tnodes */ - __u32 tnodeWidth; - __u32 tnodeMask; - - /* Stuff for figuring out file offset to chunk conversions */ - __u32 chunkShift; /* Shift value */ - __u32 chunkDiv; /* Divisor after shifting: 1 for power-of-2 sizes */ - __u32 chunkMask; /* Mask to use for power-of-2 case */ - - /* Stuff to handle inband tags */ - int inbandTags; - __u32 totalBytesPerChunk; - -#ifdef __KERNEL__ - - struct semaphore sem; /* Semaphore for waiting on erasure.*/ - struct semaphore grossLock; /* Gross locking semaphore */ - struct rw_semaphore dirLock; /* Lock the directory structure */ - __u8 *spareBuffer; /* For mtdif2 use. Don't know the size of the buffer - * at compile time so we have to allocate it. - */ - void (*putSuperFunc) (struct super_block *sb); -#endif - - int isMounted; - - int isCheckpointed; - - - /* Stuff to support block offsetting to support start block zero */ - int internalStartBlock; - int internalEndBlock; - int blockOffset; - int chunkOffset; - - - /* Runtime checkpointing stuff */ - int checkpointPageSequence; /* running sequence number of checkpoint pages */ - int checkpointByteCount; - int checkpointByteOffset; - __u8 *checkpointBuffer; - int checkpointOpenForWrite; - int blocksInCheckpoint; - int checkpointCurrentChunk; - int checkpointCurrentBlock; - int checkpointNextBlock; - int *checkpointBlockList; - int checkpointMaxBlocks; - __u32 checkpointSum; - __u32 checkpointXor; - - int nCheckpointBlocksRequired; /* Number of blocks needed to store current checkpoint set */ - - /* Block Info */ - yaffs_BlockInfo *blockInfo; - __u8 *chunkBits; /* bitmap of chunks in use */ - unsigned blockInfoAlt:1; /* was allocated using alternative strategy */ - unsigned chunkBitsAlt:1; /* was allocated using alternative strategy */ - int chunkBitmapStride; /* Number of bytes of chunkBits per block. - * Must be consistent with nChunksPerBlock. - */ - - int nErasedBlocks; - int allocationBlock; /* Current block being allocated off */ - __u32 allocationPage; - int allocationBlockFinder; /* Used to search for next allocation block */ - - /* Runtime state */ - int nTnodesCreated; - yaffs_Tnode *freeTnodes; - int nFreeTnodes; - yaffs_TnodeList *allocatedTnodeList; - - int isDoingGC; - int gcBlock; - int gcChunk; - - int nObjectsCreated; - yaffs_Object *freeObjects; - int nFreeObjects; - - int nHardLinks; - - yaffs_ObjectList *allocatedObjectList; - - yaffs_ObjectBucket objectBucket[YAFFS_NOBJECT_BUCKETS]; - - int nFreeChunks; - - int currentDirtyChecker; /* Used to find current dirtiest block */ - - __u32 *gcCleanupList; /* objects to delete at the end of a GC. */ - int nonAggressiveSkip; /* GC state/mode */ - - /* Statistcs */ - int nPageWrites; - int nPageReads; - int nBlockErasures; - int nErasureFailures; - int nGCCopies; - int garbageCollections; - int passiveGarbageCollections; - int nRetriedWrites; - int nRetiredBlocks; - int eccFixed; - int eccUnfixed; - int tagsEccFixed; - int tagsEccUnfixed; - int nDeletions; - int nUnmarkedDeletions; - - int hasPendingPrioritisedGCs; /* We think this device might have pending prioritised gcs */ - - /* Special directories */ - yaffs_Object *rootDir; - yaffs_Object *lostNFoundDir; - - /* Buffer areas for storing data to recover from write failures TODO - * __u8 bufferedData[YAFFS_CHUNKS_PER_BLOCK][YAFFS_BYTES_PER_CHUNK]; - * yaffs_Spare bufferedSpare[YAFFS_CHUNKS_PER_BLOCK]; - */ - - int bufferedBlock; /* Which block is buffered here? */ - int doingBufferedBlockRewrite; - - yaffs_ChunkCache *srCache; - int srLastUse; - - int cacheHits; - - /* Stuff for background deletion and unlinked files.*/ - yaffs_Object *unlinkedDir; /* Directory where unlinked and deleted files live. */ - yaffs_Object *deletedDir; /* Directory where deleted objects are sent to disappear. */ - yaffs_Object *unlinkedDeletion; /* Current file being background deleted.*/ - int nDeletedFiles; /* Count of files awaiting deletion;*/ - int nUnlinkedFiles; /* Count of unlinked files. */ - int nBackgroundDeletions; /* Count of background deletions. */ - - - /* Temporary buffer management */ - yaffs_TempBuffer tempBuffer[YAFFS_N_TEMP_BUFFERS]; - int maxTemp; - int tempInUse; - int unmanagedTempAllocations; - int unmanagedTempDeallocations; - - /* yaffs2 runtime stuff */ - unsigned sequenceNumber; /* Sequence number of currently allocating block */ - unsigned oldestDirtySequence; - - /* Auto empty lost and found directory on mount */ - int emptyLostAndFound; -}; - -typedef struct yaffs_DeviceStruct yaffs_Device; - -/* The static layout of block usage etc is stored in the super block header */ -typedef struct { - int StructType; - int version; - int checkpointStartBlock; - int checkpointEndBlock; - int startBlock; - int endBlock; - int rfu[100]; -} yaffs_SuperBlockHeader; - -/* The CheckpointDevice structure holds the device information that changes at runtime and - * must be preserved over unmount/mount cycles. - */ -typedef struct { - int structType; - int nErasedBlocks; - int allocationBlock; /* Current block being allocated off */ - __u32 allocationPage; - int nFreeChunks; - - int nDeletedFiles; /* Count of files awaiting deletion;*/ - int nUnlinkedFiles; /* Count of unlinked files. */ - int nBackgroundDeletions; /* Count of background deletions. */ - - /* yaffs2 runtime stuff */ - unsigned sequenceNumber; /* Sequence number of currently allocating block */ - unsigned oldestDirtySequence; - -} yaffs_CheckpointDevice; - - -typedef struct { - int structType; - __u32 magic; - __u32 version; - __u32 head; -} yaffs_CheckpointValidity; - - -/*----------------------- YAFFS Functions -----------------------*/ - -int yaffs_GutsInitialise(yaffs_Device *dev); -void yaffs_Deinitialise(yaffs_Device *dev); - -int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev); - -int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName, - yaffs_Object *newDir, const YCHAR *newName); - -int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name); -int yaffs_DeleteObject(yaffs_Object *obj); - -int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize); -int yaffs_GetObjectFileLength(yaffs_Object *obj); -int yaffs_GetObjectInode(yaffs_Object *obj); -unsigned yaffs_GetObjectType(yaffs_Object *obj); -int yaffs_GetObjectLinkCount(yaffs_Object *obj); - -int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr); -int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr); - -/* File operations */ -int yaffs_ReadDataFromFile(yaffs_Object *obj, __u8 *buffer, loff_t offset, - int nBytes); -int yaffs_WriteDataToFile(yaffs_Object *obj, const __u8 *buffer, loff_t offset, - int nBytes, int writeThrough); -int yaffs_ResizeFile(yaffs_Object *obj, loff_t newSize); - -yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid); - -int yaffs_FlushFile(yaffs_Object *obj, int updateTime, int dataSync); - -/* Flushing and checkpointing */ -void yaffs_FlushEntireDeviceCache(yaffs_Device *dev); - -int yaffs_CheckpointSave(yaffs_Device *dev); -int yaffs_CheckpointRestore(yaffs_Device *dev); - -/* Directory operations */ -yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid); -yaffs_Object *yaffs_FindObjectByName(yaffs_Object *theDir, const YCHAR *name); -int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir, - int (*fn) (yaffs_Object *)); - -yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number); - -/* Link operations */ -yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name, - yaffs_Object *equivalentObject); - -yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj); - -/* Symlink operations */ -yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid, - const YCHAR *alias); -YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj); - -/* Special inodes (fifos, sockets and devices) */ -yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name, - __u32 mode, __u32 uid, __u32 gid, __u32 rdev); - -/* Special directories */ -yaffs_Object *yaffs_Root(yaffs_Device *dev); -yaffs_Object *yaffs_LostNFound(yaffs_Device *dev); - -#ifdef CONFIG_YAFFS_WINCE -/* CONFIG_YAFFS_WINCE special stuff */ -void yfsd_WinFileTimeNow(__u32 target[2]); -#endif - -#ifdef __KERNEL__ - -void yaffs_HandleDeferedFree(yaffs_Object *obj); -#endif - -/* Debug dump */ -int yaffs_DumpObject(yaffs_Object *obj); - -void yaffs_GutsTest(yaffs_Device *dev); - -/* A few useful functions */ -void yaffs_InitialiseTags(yaffs_ExtendedTags *tags); -void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn); -int yaffs_CheckFF(__u8 *buffer, int nBytes); -void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi); - -__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo); -void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, int lineNo); - -#endif
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_nand.c +++ /dev/null @@ -1,173 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -const char *yaffs_nand_c_version = - "$Id$"; - -#include "yaffs_nand.h" -#include "yaffs_tagscompat.h" -#include "yaffs_tagsvalidity.h" - -#include "yaffs_getblockinfo.h" - -#ifdef CONFIG_YAFFS_NO_YAFFS1 -// Trap to let us compile the source largely unmodified but to elide the -// YAFFS1 code unless we really need it -static inline int noyaffs1(void) { - T(YAFFS_TRACE_ERROR, (TSTR("YAFFS1 support compiled out" TENDSTR))); - YBUG(); - return YAFFS_FAIL; -} - -static inline -int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev, - int chunkInNAND, - const __u8 *data, - const yaffs_ExtendedTags *tags) -{ return noyaffs1(); } -static inline -int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev, - int chunkInNAND, - __u8 *data, - yaffs_ExtendedTags *tags) -{ return noyaffs1(); } -static inline -int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev, - int blockNo) -{ return noyaffs1(); } -static inline -int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev, - int blockNo, - yaffs_BlockState *state, - __u32 *sequenceNumber) -{ return noyaffs1(); } -#endif - -int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, - __u8 *buffer, - yaffs_ExtendedTags *tags) -{ - int result; - yaffs_ExtendedTags localTags; - - int realignedChunkInNAND = chunkInNAND - dev->chunkOffset; - - dev->nPageReads++; - - /* If there are no tags provided, use local tags to get prioritised gc working */ - if (!tags) - tags = &localTags; - - if (dev->readChunkWithTagsFromNAND) - result = dev->readChunkWithTagsFromNAND(dev, realignedChunkInNAND, buffer, - tags); - else - result = yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(dev, - realignedChunkInNAND, - buffer, - tags); - if (tags && - tags->eccResult > YAFFS_ECC_RESULT_NO_ERROR) { - - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, chunkInNAND/dev->nChunksPerBlock); - yaffs_HandleChunkError(dev, bi); - } - - return result; -} - -int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev, - int chunkInNAND, - const __u8 *buffer, - yaffs_ExtendedTags *tags) -{ - - dev->nPageWrites++; - - chunkInNAND -= dev->chunkOffset; - - - if (tags) { - tags->sequenceNumber = dev->sequenceNumber; - tags->chunkUsed = 1; - if (!yaffs_ValidateTags(tags)) { - T(YAFFS_TRACE_ERROR, - (TSTR("Writing uninitialised tags" TENDSTR))); - YBUG(); - } - T(YAFFS_TRACE_WRITE, - (TSTR("Writing chunk %d tags %d %d" TENDSTR), chunkInNAND, - tags->objectId, tags->chunkId)); - } else { - T(YAFFS_TRACE_ERROR, (TSTR("Writing with no tags" TENDSTR))); - YBUG(); - } - - if (dev->writeChunkWithTagsToNAND) - return dev->writeChunkWithTagsToNAND(dev, chunkInNAND, buffer, - tags); - else - return yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(dev, - chunkInNAND, - buffer, - tags); -} - -int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo) -{ - blockNo -= dev->blockOffset; - - - if (dev->markNANDBlockBad) - return dev->markNANDBlockBad(dev, blockNo); - else - return yaffs_TagsCompatabilityMarkNANDBlockBad(dev, blockNo); -} - -int yaffs_QueryInitialBlockState(yaffs_Device *dev, - int blockNo, - yaffs_BlockState *state, - __u32 *sequenceNumber) -{ - blockNo -= dev->blockOffset; - - if (dev->queryNANDBlock) - return dev->queryNANDBlock(dev, blockNo, state, sequenceNumber); - else - return yaffs_TagsCompatabilityQueryNANDBlock(dev, blockNo, - state, - sequenceNumber); -} - - -int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, - int blockInNAND) -{ - int result; - - blockInNAND -= dev->blockOffset; - - dev->nBlockErasures++; - - result = dev->eraseBlockInNAND(dev, blockInNAND); - - return result; -} - -int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev) -{ - return dev->initialiseNAND(dev); -} - - -
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_nand.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -#ifndef __YAFFS_NAND_H__ -#define __YAFFS_NAND_H__ -#include "yaffs_guts.h" - - - -int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, - __u8 *buffer, - yaffs_ExtendedTags *tags); - -int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev, - int chunkInNAND, - const __u8 *buffer, - yaffs_ExtendedTags *tags); - -int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo); - -int yaffs_QueryInitialBlockState(yaffs_Device *dev, - int blockNo, - yaffs_BlockState *state, - unsigned *sequenceNumber); - -int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, - int blockInNAND); - -int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev); - -#endif -
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_packedtags1.c +++ /dev/null @@ -1,50 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include "yaffs_packedtags1.h" -#include "yportenv.h" - -void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t) -{ - pt->chunkId = t->chunkId; - pt->serialNumber = t->serialNumber; - pt->byteCount = t->byteCount; - pt->objectId = t->objectId; - pt->ecc = 0; - pt->deleted = (t->chunkDeleted) ? 0 : 1; - pt->unusedStuff = 0; - pt->shouldBeFF = 0xFFFFFFFF; - -} - -void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt) -{ - static const __u8 allFF[] = - { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, -0xff }; - - if (memcmp(allFF, pt, sizeof(yaffs_PackedTags1))) { - t->blockBad = 0; - if (pt->shouldBeFF != 0xFFFFFFFF) - t->blockBad = 1; - t->chunkUsed = 1; - t->objectId = pt->objectId; - t->chunkId = pt->chunkId; - t->byteCount = pt->byteCount; - t->eccResult = YAFFS_ECC_RESULT_NO_ERROR; - t->chunkDeleted = (pt->deleted) ? 0 : 1; - t->serialNumber = pt->serialNumber; - } else { - memset(t, 0, sizeof(yaffs_ExtendedTags)); - } -}
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_packedtags1.h +++ /dev/null @@ -1,37 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -/* This is used to pack YAFFS1 tags, not YAFFS2 tags. */ - -#ifndef __YAFFS_PACKEDTAGS1_H__ -#define __YAFFS_PACKEDTAGS1_H__ - -#include "yaffs_guts.h" - -typedef struct { - unsigned chunkId:20; - unsigned serialNumber:2; - unsigned byteCount:10; - unsigned objectId:18; - unsigned ecc:12; - unsigned deleted:1; - unsigned unusedStuff:1; - unsigned shouldBeFF; - -} yaffs_PackedTags1; - -void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t); -void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt); -#endif
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_packedtags2.c +++ /dev/null @@ -1,206 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include "yaffs_packedtags2.h" -#include "yportenv.h" -#include "yaffs_tagsvalidity.h" - -#if 0 -// Used in conjunction with RANDOMLY_LOSE mode on the synth nand driver to -// demonstrate that it is behaving as intended. -#define COUNT_ECC_TAG_FIXES -unsigned yaffs_tag_ecc_fixes = 0; -#endif - -/* This code packs a set of extended tags into a binary structure for - * NAND storage - */ - -/* Some of the information is "extra" struff which can be packed in to - * speed scanning - * This is defined by having the EXTRA_HEADER_INFO_FLAG set. - */ - -/* Extra flags applied to chunkId */ - -#define EXTRA_HEADER_INFO_FLAG 0x80000000 -#define EXTRA_SHRINK_FLAG 0x40000000 -#define EXTRA_SHADOWS_FLAG 0x20000000 -#define EXTRA_SPARE_FLAGS 0x10000000 - -#define ALL_EXTRA_FLAGS 0xF0000000 - -/* Also, the top 4 bits of the object Id are set to the object type. */ -#define EXTRA_OBJECT_TYPE_SHIFT (28) -#define EXTRA_OBJECT_TYPE_MASK ((0x0F) << EXTRA_OBJECT_TYPE_SHIFT) - - -static void yaffs_DumpPackedTags2TagsPart(const yaffs_PackedTags2TagsPart *ptt) -{ - T(YAFFS_TRACE_MTD, - (TSTR("packed tags obj %d chunk %d byte %d seq %d" TENDSTR), - ptt->objectId, ptt->chunkId, ptt->byteCount, - ptt->sequenceNumber)); -} -static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 *pt) -{ - yaffs_DumpPackedTags2TagsPart(&pt->t); -} - -static void yaffs_DumpTags2(const yaffs_ExtendedTags *t) -{ - T(YAFFS_TRACE_MTD, - (TSTR - ("ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte %d del %d ser %d seq %d" - TENDSTR), t->eccResult, t->blockBad, t->chunkUsed, t->objectId, - t->chunkId, t->byteCount, t->chunkDeleted, t->serialNumber, - t->sequenceNumber)); - -} - -void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *ptt, - const yaffs_ExtendedTags *t) -{ - ptt->chunkId = t->chunkId; - ptt->sequenceNumber = t->sequenceNumber; - ptt->byteCount = t->byteCount; - ptt->objectId = t->objectId; - - if (t->chunkId == 0 && t->extraHeaderInfoAvailable) { - /* Store the extra header info instead */ - /* We save the parent object in the chunkId */ - ptt->chunkId = EXTRA_HEADER_INFO_FLAG - | t->extraParentObjectId; - if (t->extraIsShrinkHeader) - ptt->chunkId |= EXTRA_SHRINK_FLAG; - if (t->extraShadows) - ptt->chunkId |= EXTRA_SHADOWS_FLAG; - - ptt->objectId &= ~EXTRA_OBJECT_TYPE_MASK; - ptt->objectId |= - (t->extraObjectType << EXTRA_OBJECT_TYPE_SHIFT); - - if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) - ptt->byteCount = t->extraEquivalentObjectId; - else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE) - ptt->byteCount = t->extraFileLength; - else - ptt->byteCount = 0; - } - - yaffs_DumpPackedTags2TagsPart(ptt); - yaffs_DumpTags2(t); -} - - -void yaffs_PackTags2(yaffs_Device *dev, yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t) -{ - yaffs_PackTags2TagsPart(&pt->t, t); - - if(!dev->noTagsECC) - yaffs_ECCCalculateOther((unsigned char *)&pt->t, - sizeof(yaffs_PackedTags2TagsPart), - &pt->ecc); -} - - -void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t, - yaffs_PackedTags2TagsPart *ptt) -{ - - memset(t, 0, sizeof(yaffs_ExtendedTags)); - - yaffs_InitialiseTags(t); - - if (ptt->sequenceNumber != 0xFFFFFFFF) { - t->blockBad = 0; - t->chunkUsed = 1; - t->objectId = ptt->objectId; - t->chunkId = ptt->chunkId; - t->byteCount = ptt->byteCount; - t->chunkDeleted = 0; - t->serialNumber = 0; - t->sequenceNumber = ptt->sequenceNumber; - - /* Do extra header info stuff */ - - if (ptt->chunkId & EXTRA_HEADER_INFO_FLAG) { - t->chunkId = 0; - t->byteCount = 0; - - t->extraHeaderInfoAvailable = 1; - t->extraParentObjectId = - ptt->chunkId & (~(ALL_EXTRA_FLAGS)); - t->extraIsShrinkHeader = - (ptt->chunkId & EXTRA_SHRINK_FLAG) ? 1 : 0; - t->extraShadows = - (ptt->chunkId & EXTRA_SHADOWS_FLAG) ? 1 : 0; - t->extraObjectType = - ptt->objectId >> EXTRA_OBJECT_TYPE_SHIFT; - t->objectId &= ~EXTRA_OBJECT_TYPE_MASK; - - if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) - t->extraEquivalentObjectId = ptt->byteCount; - else - t->extraFileLength = ptt->byteCount; - } - } - - yaffs_DumpPackedTags2TagsPart(ptt); - yaffs_DumpTags2(t); - -} - -void yaffs_UnpackTags2(yaffs_Device *dev, yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt) -{ - - yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_NO_ERROR; - - if (pt->t.sequenceNumber != 0xFFFFFFFF && - !dev->noTagsECC){ - /* Chunk is in use and we need to do ECC */ - - yaffs_ECCOther ecc; - int result; - yaffs_ECCCalculateOther((unsigned char *)&pt->t, - sizeof(yaffs_PackedTags2TagsPart), - &ecc); - result = yaffs_ECCCorrectOther((unsigned char *)&pt->t, - sizeof(yaffs_PackedTags2TagsPart), - &pt->ecc, &ecc); - switch (result) { - case 0: - eccResult = YAFFS_ECC_RESULT_NO_ERROR; - break; - case 1: - eccResult = YAFFS_ECC_RESULT_FIXED; -#ifdef COUNT_ECC_TAG_FIXES - ++yaffs_tag_ecc_fixes; -#endif - break; - case -1: - eccResult = YAFFS_ECC_RESULT_UNFIXED; - break; - default: - eccResult = YAFFS_ECC_RESULT_UNKNOWN; - } - } - - yaffs_UnpackTags2TagsPart(t, &pt->t); - - t->eccResult = eccResult; - - yaffs_DumpPackedTags2(pt); - yaffs_DumpTags2(t); -} -
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_packedtags2.h +++ /dev/null @@ -1,43 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -/* This is used to pack YAFFS2 tags, not YAFFS1tags. */ - -#ifndef __YAFFS_PACKEDTAGS2_H__ -#define __YAFFS_PACKEDTAGS2_H__ - -#include "yaffs_guts.h" -#include "yaffs_ecc.h" - -typedef struct { - unsigned sequenceNumber; - unsigned objectId; - unsigned chunkId; - unsigned byteCount; -} yaffs_PackedTags2TagsPart; - -typedef struct { - yaffs_PackedTags2TagsPart t; - yaffs_ECCOther ecc; -} yaffs_PackedTags2; - -/* Full packed tags with ECC, used for oob tags */ -void yaffs_PackTags2(yaffs_Device *dev, yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t); -void yaffs_UnpackTags2(yaffs_Device *dev, yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt); - -/* Only the tags part (no ECC for use with inband tags */ -void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *pt, const yaffs_ExtendedTags *t); -void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t, yaffs_PackedTags2TagsPart *pt); -#endif
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_qsort.h +++ /dev/null @@ -1,23 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - - -#ifndef __YAFFS_QSORT_H__ -#define __YAFFS_QSORT_H__ - -extern void yaffs_qsort(void *const base, size_t total_elems, size_t size, - int (*cmp)(const void *, const void *)); - -#endif
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_tagscompat.c +++ /dev/null @@ -1,557 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include "yaffs_guts.h" -#include "yaffs_tagscompat.h" -#include "yaffs_ecc.h" -#include "yaffs_getblockinfo.h" - -#ifndef CONFIG_YAFFS_NO_YAFFS1 -static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND); -#endif // ! NO_YAFFS1, i.e. only when YAFFS1 is needed -#ifdef NOTYET -static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND); -static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, - const __u8 *data, - const yaffs_Spare *spare); -static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, - const yaffs_Spare *spare); -static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND); -#endif - -static const char yaffs_countBitsTable[256] = { - 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, - 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, - 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, - 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, - 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, - 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, - 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, - 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, - 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, - 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, - 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, - 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, - 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, - 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, - 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, - 4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8 -}; - -int yaffs_CountBits(__u8 x) -{ - int retVal; - retVal = yaffs_countBitsTable[x]; - return retVal; -} - -/********** Tags ECC calculations *********/ - -void yaffs_CalcECC(const __u8 *data, yaffs_Spare *spare) -{ -#if 1 - YBUG(); // Should never get here if configured out.. -#else - yaffs_ECCCalculate(data, spare->ecc1); - yaffs_ECCCalculate(&data[256], spare->ecc2); -#endif -} - -#ifndef CONFIG_YAFFS_NO_YAFFS1 -void yaffs_CalcTagsECC(yaffs_Tags *tags) -{ - /* Calculate an ecc */ - - unsigned char *b = ((yaffs_TagsUnion *) tags)->asBytes; - unsigned i, j; - unsigned ecc = 0; - unsigned bit = 0; - - tags->ecc = 0; - - for (i = 0; i < 8; i++) { - for (j = 1; j & 0xff; j <<= 1) { - bit++; - if (b[i] & j) - ecc ^= bit; - } - } - - tags->ecc = ecc; - -} - -int yaffs_CheckECCOnTags(yaffs_Tags *tags) -{ - unsigned ecc = tags->ecc; - - yaffs_CalcTagsECC(tags); - - ecc ^= tags->ecc; - - if (ecc && ecc <= 64) { - /* TODO: Handle the failure better. Retire? */ - unsigned char *b = ((yaffs_TagsUnion *) tags)->asBytes; - - ecc--; - - b[ecc / 8] ^= (1 << (ecc & 7)); - - /* Now recvalc the ecc */ - yaffs_CalcTagsECC(tags); - - return 1; /* recovered error */ - } else if (ecc) { - /* Wierd ecc failure value */ - /* TODO Need to do somethiong here */ - return -1; /* unrecovered error */ - } - - return 0; -} -#endif - -/********** Tags **********/ - -#ifndef CONFIG_YAFFS_NO_YAFFS1 -static void yaffs_LoadTagsIntoSpare(yaffs_Spare *sparePtr, - yaffs_Tags *tagsPtr) -{ - yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr; - - yaffs_CalcTagsECC(tagsPtr); - - sparePtr->tagByte0 = tu->asBytes[0]; - sparePtr->tagByte1 = tu->asBytes[1]; - sparePtr->tagByte2 = tu->asBytes[2]; - sparePtr->tagByte3 = tu->asBytes[3]; - sparePtr->tagByte4 = tu->asBytes[4]; - sparePtr->tagByte5 = tu->asBytes[5]; - sparePtr->tagByte6 = tu->asBytes[6]; - sparePtr->tagByte7 = tu->asBytes[7]; -} - -static void yaffs_GetTagsFromSpare(yaffs_Device *dev, yaffs_Spare *sparePtr, - yaffs_Tags *tagsPtr) -{ - yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr; - int result; - - tu->asBytes[0] = sparePtr->tagByte0; - tu->asBytes[1] = sparePtr->tagByte1; - tu->asBytes[2] = sparePtr->tagByte2; - tu->asBytes[3] = sparePtr->tagByte3; - tu->asBytes[4] = sparePtr->tagByte4; - tu->asBytes[5] = sparePtr->tagByte5; - tu->asBytes[6] = sparePtr->tagByte6; - tu->asBytes[7] = sparePtr->tagByte7; - - result = yaffs_CheckECCOnTags(tagsPtr); - if (result > 0) - dev->tagsEccFixed++; - else if (result < 0) - dev->tagsEccUnfixed++; -} - -static void yaffs_SpareInitialise(yaffs_Spare *spare) -{ - memset(spare, 0xFF, sizeof(yaffs_Spare)); -} - -static int yaffs_WriteChunkToNAND(struct yaffs_DeviceStruct *dev, - int chunkInNAND, const __u8 *data, - yaffs_Spare *spare) -{ - if (chunkInNAND < dev->startBlock * dev->nChunksPerBlock) { - T(YAFFS_TRACE_ERROR, - (TSTR("**>> yaffs chunk %d is not valid" TENDSTR), - chunkInNAND)); - return YAFFS_FAIL; - } - - return dev->writeChunkToNAND(dev, chunkInNAND, data, spare); -} - -static int yaffs_ReadChunkFromNAND(struct yaffs_DeviceStruct *dev, - int chunkInNAND, - __u8 *data, - yaffs_Spare *spare, - yaffs_ECCResult *eccResult, - int doErrorCorrection) -{ - int retVal; - yaffs_Spare localSpare; - - if (!spare && data) { - /* If we don't have a real spare, then we use a local one. */ - /* Need this for the calculation of the ecc */ - spare = &localSpare; - } - - if (!dev->useNANDECC) { -#if 1 - YBUG(); -#else - retVal = dev->readChunkFromNAND(dev, chunkInNAND, data, spare); - if (data && doErrorCorrection) { - /* Do ECC correction */ - /* Todo handle any errors */ - int eccResult1, eccResult2; - __u8 calcEcc[3]; - - yaffs_ECCCalculate(data, calcEcc); - eccResult1 = - yaffs_ECCCorrect(data, spare->ecc1, calcEcc); - yaffs_ECCCalculate(&data[256], calcEcc); - eccResult2 = - yaffs_ECCCorrect(&data[256], spare->ecc2, calcEcc); - - if (eccResult1 > 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>yaffs ecc error fix performed on chunk %d:0" - TENDSTR), chunkInNAND)); - dev->eccFixed++; - } else if (eccResult1 < 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>yaffs ecc error unfixed on chunk %d:0" - TENDSTR), chunkInNAND)); - dev->eccUnfixed++; - } - - if (eccResult2 > 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>yaffs ecc error fix performed on chunk %d:1" - TENDSTR), chunkInNAND)); - dev->eccFixed++; - } else if (eccResult2 < 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>yaffs ecc error unfixed on chunk %d:1" - TENDSTR), chunkInNAND)); - dev->eccUnfixed++; - } - - if (eccResult1 || eccResult2) { - /* We had a data problem on this page */ - yaffs_HandleReadDataError(dev, chunkInNAND); - } - - if (eccResult1 < 0 || eccResult2 < 0) - *eccResult = YAFFS_ECC_RESULT_UNFIXED; - else if (eccResult1 > 0 || eccResult2 > 0) - *eccResult = YAFFS_ECC_RESULT_FIXED; - else - *eccResult = YAFFS_ECC_RESULT_NO_ERROR; - } -#endif - } else { - /* Must allocate enough memory for spare+2*sizeof(int) */ - /* for ecc results from device. */ - struct yaffs_NANDSpare nspare; - - memset(&nspare, 0, sizeof(nspare)); - - retVal = dev->readChunkFromNAND(dev, chunkInNAND, data, - (yaffs_Spare *) &nspare); - memcpy(spare, &nspare, sizeof(yaffs_Spare)); - if (data && doErrorCorrection) { - if (nspare.eccres1 > 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>mtd ecc error fix performed on chunk %d:0" - TENDSTR), chunkInNAND)); - } else if (nspare.eccres1 < 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>mtd ecc error unfixed on chunk %d:0" - TENDSTR), chunkInNAND)); - } - - if (nspare.eccres2 > 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>mtd ecc error fix performed on chunk %d:1" - TENDSTR), chunkInNAND)); - } else if (nspare.eccres2 < 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>mtd ecc error unfixed on chunk %d:1" - TENDSTR), chunkInNAND)); - } - - if (nspare.eccres1 || nspare.eccres2) { - /* We had a data problem on this page */ - yaffs_HandleReadDataError(dev, chunkInNAND); - } - - if (nspare.eccres1 < 0 || nspare.eccres2 < 0) - *eccResult = YAFFS_ECC_RESULT_UNFIXED; - else if (nspare.eccres1 > 0 || nspare.eccres2 > 0) - *eccResult = YAFFS_ECC_RESULT_FIXED; - else - *eccResult = YAFFS_ECC_RESULT_NO_ERROR; - - } - } - return retVal; -} -#endif // ! NO_YAFFS1, i.e. only when YAFFS1 is present - -#ifdef NOTYET -static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, - int chunkInNAND) -{ - static int init; - static __u8 cmpbuf[YAFFS_BYTES_PER_CHUNK]; - static __u8 data[YAFFS_BYTES_PER_CHUNK]; - /* Might as well always allocate the larger size for */ - /* dev->useNANDECC == true; */ - static __u8 spare[sizeof(struct yaffs_NANDSpare)]; - - dev->readChunkFromNAND(dev, chunkInNAND, data, (yaffs_Spare *) spare); - - if (!init) { - memset(cmpbuf, 0xff, YAFFS_BYTES_PER_CHUNK); - init = 1; - } - - if (memcmp(cmpbuf, data, YAFFS_BYTES_PER_CHUNK)) - return YAFFS_FAIL; - if (memcmp(cmpbuf, spare, 16)) - return YAFFS_FAIL; - - return YAFFS_OK; - -} -#endif - -/* - * Functions for robustisizing - */ - -#ifndef CONFIG_YAFFS_NO_YAFFS1 -static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND) -{ - int blockInNAND = chunkInNAND / dev->nChunksPerBlock; - - /* Mark the block for retirement */ - yaffs_GetBlockInfo(dev, blockInNAND + dev->blockOffset)->needsRetiring = 1; - T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, - (TSTR("**>>Block %d marked for retirement" TENDSTR), blockInNAND)); - - /* TODO: - * Just do a garbage collection on the affected block - * then retire the block - * NB recursion - */ -} -#endif // ! NO_YAFFS1, i.e. only when YAFFS1 is needed - -#ifdef NOTYET -static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND) -{ -} - -static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, - const __u8 *data, - const yaffs_Spare *spare) -{ -} - -static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, - const yaffs_Spare *spare) -{ -} - -static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND) -{ - int blockInNAND = chunkInNAND / dev->nChunksPerBlock; - - /* Mark the block for retirement */ - yaffs_GetBlockInfo(dev, blockInNAND)->needsRetiring = 1; - /* Delete the chunk */ - yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__); -} - -static int yaffs_VerifyCompare(const __u8 *d0, const __u8 *d1, - const yaffs_Spare *s0, const yaffs_Spare *s1) -{ - - if (memcmp(d0, d1, YAFFS_BYTES_PER_CHUNK) != 0 || - s0->tagByte0 != s1->tagByte0 || - s0->tagByte1 != s1->tagByte1 || - s0->tagByte2 != s1->tagByte2 || - s0->tagByte3 != s1->tagByte3 || - s0->tagByte4 != s1->tagByte4 || - s0->tagByte5 != s1->tagByte5 || - s0->tagByte6 != s1->tagByte6 || - s0->tagByte7 != s1->tagByte7 || - s0->ecc1[0] != s1->ecc1[0] || - s0->ecc1[1] != s1->ecc1[1] || - s0->ecc1[2] != s1->ecc1[2] || - s0->ecc2[0] != s1->ecc2[0] || - s0->ecc2[1] != s1->ecc2[1] || s0->ecc2[2] != s1->ecc2[2]) { - return 0; - } - - return 1; -} -#endif /* NOTYET */ - -#ifndef CONFIG_YAFFS_NO_YAFFS1 -int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev, - int chunkInNAND, - const __u8 *data, - const yaffs_ExtendedTags *eTags) -{ - yaffs_Spare spare; - yaffs_Tags tags; - - yaffs_SpareInitialise(&spare); - - if (eTags->chunkDeleted) - spare.pageStatus = 0; - else { - tags.objectId = eTags->objectId; - tags.chunkId = eTags->chunkId; - - tags.byteCountLSB = eTags->byteCount & 0x3ff; - - if (dev->nDataBytesPerChunk >= 1024) - tags.byteCountMSB = (eTags->byteCount >> 10) & 3; - else - tags.byteCountMSB = 3; - - - tags.serialNumber = eTags->serialNumber; - - if (!dev->useNANDECC && data) - yaffs_CalcECC(data, &spare); - - yaffs_LoadTagsIntoSpare(&spare, &tags); - - } - - return yaffs_WriteChunkToNAND(dev, chunkInNAND, data, &spare); -} - -int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev, - int chunkInNAND, - __u8 *data, - yaffs_ExtendedTags *eTags) -{ - - yaffs_Spare spare; - yaffs_Tags tags; - yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_UNKNOWN; - - static yaffs_Spare spareFF; - static int init; - - if (!init) { - memset(&spareFF, 0xFF, sizeof(spareFF)); - init = 1; - } - - if (yaffs_ReadChunkFromNAND - (dev, chunkInNAND, data, &spare, &eccResult, 1)) { - /* eTags may be NULL */ - if (eTags) { - - int deleted = - (yaffs_CountBits(spare.pageStatus) < 7) ? 1 : 0; - - eTags->chunkDeleted = deleted; - eTags->eccResult = eccResult; - eTags->blockBad = 0; /* We're reading it */ - /* therefore it is not a bad block */ - eTags->chunkUsed = - (memcmp(&spareFF, &spare, sizeof(spareFF)) != - 0) ? 1 : 0; - - if (eTags->chunkUsed) { - yaffs_GetTagsFromSpare(dev, &spare, &tags); - - eTags->objectId = tags.objectId; - eTags->chunkId = tags.chunkId; - eTags->byteCount = tags.byteCountLSB; - - if (dev->nDataBytesPerChunk >= 1024) - eTags->byteCount |= (((unsigned) tags.byteCountMSB) << 10); - - eTags->serialNumber = tags.serialNumber; - } - } - - return YAFFS_OK; - } else { - return YAFFS_FAIL; - } -} - -int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev, - int blockInNAND) -{ - - yaffs_Spare spare; - - memset(&spare, 0xff, sizeof(yaffs_Spare)); - - spare.blockStatus = 'Y'; - - yaffs_WriteChunkToNAND(dev, blockInNAND * dev->nChunksPerBlock, NULL, - &spare); - yaffs_WriteChunkToNAND(dev, blockInNAND * dev->nChunksPerBlock + 1, - NULL, &spare); - - return YAFFS_OK; - -} - -int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev, - int blockNo, - yaffs_BlockState *state, - __u32 *sequenceNumber) -{ - - yaffs_Spare spare0, spare1; - static yaffs_Spare spareFF; - static int init; - yaffs_ECCResult dummy; - - if (!init) { - memset(&spareFF, 0xFF, sizeof(spareFF)); - init = 1; - } - - *sequenceNumber = 0; - - yaffs_ReadChunkFromNAND(dev, blockNo * dev->nChunksPerBlock, NULL, - &spare0, &dummy, 1); - yaffs_ReadChunkFromNAND(dev, blockNo * dev->nChunksPerBlock + 1, NULL, - &spare1, &dummy, 1); - - if (yaffs_CountBits(spare0.blockStatus & spare1.blockStatus) < 7) - *state = YAFFS_BLOCK_STATE_DEAD; - else if (memcmp(&spareFF, &spare0, sizeof(spareFF)) == 0) - *state = YAFFS_BLOCK_STATE_EMPTY; - else - *state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; - - return YAFFS_OK; -} -#endif // ! NO_YAFFS1, i.e. only when YAFFS1 is needed -
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_tagscompat.h +++ /dev/null @@ -1,42 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -#ifndef __YAFFS_TAGSCOMPAT_H__ -#define __YAFFS_TAGSCOMPAT_H__ - -#include "yaffs_guts.h" - -#ifndef CONFIG_YAFFS_NO_YAFFS1 -int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev, - int chunkInNAND, - const __u8 *data, - const yaffs_ExtendedTags *tags); -int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev, - int chunkInNAND, - __u8 *data, - yaffs_ExtendedTags *tags); -int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev, - int blockNo); -int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev, - int blockNo, - yaffs_BlockState *state, - __u32 *sequenceNumber); - -void yaffs_CalcTagsECC(yaffs_Tags *tags); -int yaffs_CheckECCOnTags(yaffs_Tags *tags); -#endif -int yaffs_CountBits(__u8 byte); - -#endif
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_tagsvalidity.c +++ /dev/null @@ -1,28 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include "yaffs_tagsvalidity.h" - -void yaffs_InitialiseTags(yaffs_ExtendedTags *tags) -{ - memset(tags, 0, sizeof(yaffs_ExtendedTags)); - tags->validMarker0 = 0xAAAAAAAA; - tags->validMarker1 = 0x55555555; -} - -int yaffs_ValidateTags(yaffs_ExtendedTags *tags) -{ - return (tags->validMarker0 == 0xAAAAAAAA && - tags->validMarker1 == 0x55555555); - -}
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffs_tagsvalidity.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - - -#ifndef __YAFFS_TAGS_VALIDITY_H__ -#define __YAFFS_TAGS_VALIDITY_H__ - -#include "yaffs_guts.h" - -void yaffs_InitialiseTags(yaffs_ExtendedTags *tags); -int yaffs_ValidateTags(yaffs_ExtendedTags *tags); -#endif
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yaffsinterface.h +++ /dev/null @@ -1,21 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -#ifndef __YAFFSINTERFACE_H__ -#define __YAFFSINTERFACE_H__ - -int yaffs_Initialise(unsigned nBlocks); - -#endif
deleted file mode 100644 --- a/packages/fs/yaffs/current/src/yportenv.h +++ /dev/null @@ -1,209 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - - -#ifndef __YPORTENV_H__ -#define __YPORTENV_H__ - -#include "ecos-yaffs.h" - -/* - * Define the MTD version in terms of Linux Kernel versions - * This allows yaffs to be used independantly of the kernel - * as well as with it. - */ - -#define MTD_VERSION(a, b, c) (((a) << 16) + ((b) << 8) + (c)) - -#if defined CONFIG_YAFFS_WINCE - -#include "ywinceenv.h" - -#elif defined __KERNEL__ - -#include "moduleconfig.h" - -/* Linux kernel */ - -#include <linux/version.h> -#define MTD_VERSION_CODE LINUX_VERSION_CODE - -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) -#include <linux/config.h> -#endif -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/string.h> -#include <linux/slab.h> -#include <linux/vmalloc.h> - -#define YCHAR char -#define YUCHAR unsigned char -#define _Y(x) x -#define yaffs_strcat(a, b) strcat(a, b) -#define yaffs_strcpy(a, b) strcpy(a, b) -#define yaffs_strncpy(a, b, c) strncpy(a, b, c) -#define yaffs_strncmp(a, b, c) strncmp(a, b, c) -#define yaffs_strlen(s) strlen(s) -#define yaffs_sprintf sprintf -#define yaffs_toupper(a) toupper(a) - -#define Y_INLINE inline - -#define YAFFS_LOSTNFOUND_NAME "lost+found" -#define YAFFS_LOSTNFOUND_PREFIX "obj" - -/* #define YPRINTF(x) printk x */ -#define YMALLOC(x) kmalloc(x, GFP_NOFS) -#define YFREE(x) kfree(x) -#define YMALLOC_ALT(x) vmalloc(x) -#define YFREE_ALT(x) vfree(x) -#define YMALLOC_DMA(x) YMALLOC(x) - -/* KR - added for use in scan so processes aren't blocked indefinitely. */ -#define YYIELD() schedule() - -#define YAFFS_ROOT_MODE 0755 -#define YAFFS_LOSTNFOUND_MODE 0700 - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) -#define Y_CURRENT_TIME CURRENT_TIME.tv_sec -#define Y_TIME_CONVERT(x) (x).tv_sec -#else -#define Y_CURRENT_TIME CURRENT_TIME -#define Y_TIME_CONVERT(x) (x) -#endif - -#define yaffs_SumCompare(x, y) ((x) == (y)) -#define yaffs_strcmp(a, b) strcmp(a, b) - -#define TENDSTR "\n" -#define TSTR(x) KERN_WARNING x -#define TCONT(x) x -#define TOUT(p) printk p - -#define yaffs_trace(mask, fmt, args...) \ - do { if ((mask) & (yaffs_traceMask| YAFFS_TRACE_ALWAYS)) \ - printk(KERN_WARNING "yaffs: " fmt, ## args); \ - } while (0) - -#define compile_time_assertion(assertion) \ - ({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; }) - -#elif defined CONFIG_YAFFS_DIRECT - -#define MTD_VERSION_CODE MTD_VERSION(2, 6, 22) - -/* Direct interface */ -#include "ydirectenv.h" - -#elif defined CONFIG_YAFFS_UTIL - -/* Stuff for YAFFS utilities */ - -#include "stdlib.h" -#include "stdio.h" -#include "string.h" - -#include "devextras.h" - -#define YMALLOC(x) malloc(x) -#define YFREE(x) free(x) -#define YMALLOC_ALT(x) malloc(x) -#define YFREE_ALT(x) free(x) - -#define YCHAR char -#define YUCHAR unsigned char -#define _Y(x) x -#define yaffs_strcat(a, b) strcat(a, b) -#define yaffs_strcpy(a, b) strcpy(a, b) -#define yaffs_strncpy(a, b, c) strncpy(a, b, c) -#define yaffs_strlen(s) strlen(s) -#define yaffs_sprintf sprintf -#define yaffs_toupper(a) toupper(a) - -#define Y_INLINE inline - -/* #define YINFO(s) YPRINTF(( __FILE__ " %d %s\n",__LINE__,s)) */ -/* #define YALERT(s) YINFO(s) */ - -#define TENDSTR "\n" -#define TSTR(x) x -#define TOUT(p) printf p - -#define YAFFS_LOSTNFOUND_NAME "lost+found" -#define YAFFS_LOSTNFOUND_PREFIX "obj" -/* #define YPRINTF(x) printf x */ - -#define YAFFS_ROOT_MODE 0755 -#define YAFFS_LOSTNFOUND_MODE 0700 - -#define yaffs_SumCompare(x, y) ((x) == (y)) -#define yaffs_strcmp(a, b) strcmp(a, b) - -#elif defined CYGPKG_FS_YAFFS - -#include "ecos-yport.h" - -#else -/* Should have specified a configuration type */ -#error Unknown configuration - -#endif - -/* see yaffs_fs.c */ -extern unsigned int yaffs_traceMask; -extern unsigned int yaffs_wr_attempts; - -/* - * Tracing flags. - * The flags masked in YAFFS_TRACE_ALWAYS are always traced. - */ - -#define YAFFS_TRACE_OS 0x00000002 -#define YAFFS_TRACE_ALLOCATE 0x00000004 -#define YAFFS_TRACE_SCAN 0x00000008 -#define YAFFS_TRACE_BAD_BLOCKS 0x00000010 -#define YAFFS_TRACE_ERASE 0x00000020 -#define YAFFS_TRACE_GC 0x00000040 -#define YAFFS_TRACE_WRITE 0x00000080 -#define YAFFS_TRACE_TRACING 0x00000100 -#define YAFFS_TRACE_DELETION 0x00000200 -#define YAFFS_TRACE_BUFFERS 0x00000400 -#define YAFFS_TRACE_NANDACCESS 0x00000800 -#define YAFFS_TRACE_GC_DETAIL 0x00001000 -#define YAFFS_TRACE_SCAN_DEBUG 0x00002000 -#define YAFFS_TRACE_MTD 0x00004000 -#define YAFFS_TRACE_CHECKPOINT 0x00008000 - -#define YAFFS_TRACE_VERIFY 0x00010000 -#define YAFFS_TRACE_VERIFY_NAND 0x00020000 -#define YAFFS_TRACE_VERIFY_FULL 0x00040000 -#define YAFFS_TRACE_VERIFY_ALL 0x000F0000 - - -#define YAFFS_TRACE_ERROR 0x40000000 -#define YAFFS_TRACE_BUG 0x80000000 -#define YAFFS_TRACE_ALWAYS 0xF0000000 - - -#define T(mask, p) do { if ((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p); } while (0) - -#ifndef YBUG -#define YBUG() do {T(YAFFS_TRACE_BUG, (TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR), __LINE__)); } while (0) -#endif - -#endif
deleted file mode 100644 --- a/packages/fs/yaffs/current/tests/ar4prng.inl +++ /dev/null @@ -1,98 +0,0 @@ -//============================================================================= -// -// ar4prng.inl -// -// Inline providing ARC4-based PRNG -// -//============================================================================= -// ####ECOSGPLCOPYRIGHTBEGIN#### -// ------------------------------------------- -// This file is part of eCos, the Embedded Configurable Operating System. -// Copyright (C) 2009 eCosCentric Limited. -// -// eCos is free software; you can redistribute it and/or modify it under -// the terms of the GNU General Public License as published by the Free -// Software Foundation; either version 2 or (at your option) any later -// version. -// -// eCos is distributed in the hope that it will be useful, but WITHOUT -// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -// for more details. -// -// You should have received a copy of the GNU General Public License -// along with eCos; if not, write to the Free Software Foundation, Inc., -// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -// -// As a special exception, if other files instantiate templates or use -// macros or inline functions from this file, or you compile this file -// and link it with other works to produce a work based on this file, -// this file does not by itself cause the resulting work to be covered by -// the GNU General Public License. However the source code for this file -// must still be made available in accordance with section (3) of the GNU -// General Public License v2. -// -// This exception does not invalidate any other reasons why a work based -// on this file might be covered by the GNU General Public License. -// ------------------------------------------- -// ####ECOSGPLCOPYRIGHTEND#### -//============================================================================= -//#####DESCRIPTIONBEGIN#### -// -// Author(s): wry -// Date: 2009-04-06 -// -//####DESCRIPTIONEND#### -//============================================================================= - -#define _SWAP(_a,_b) do { int tmp = (_a); (_a) = (_b); (_b) = tmp; } while(0) - -typedef struct { - unsigned char S[256]; - int i,j; -} ar4ctx; - -void ar4prng_init(ar4ctx *c, unsigned char *seed, unsigned seedlen) -{ - int i,j=0; - for (i=0; i<256; i++) c->S[i] = i; - for (i=0; i<256; i++) { - j = (j + c->S[i] + seed[i%seedlen]) %256; - _SWAP(c->S[i], c->S[j]); - } - c->i = c->j = 0; -} - -unsigned char ar4prng_next(ar4ctx *c) -{ - c->i = (c->i + 1) %256; - c->j = (c->j + c->S[c->i]) %256; - _SWAP(c->S[c->i], c->S[c->j]); - return c->S[(c->S[c->i] + c->S[c->j])%256]; -} - -void ar4prng_many(ar4ctx *c, unsigned char *optr, unsigned len) -{ - while (len--) *(optr++) = ar4prng_next(c); -} - -#include <cyg/infra/cyg_type.h> - -/* If you care about systematic sampling bias, do not naively - * reduce a u32 mod some limit. */ -cyg_uint32 ar4prng_u32(ar4ctx *c) -{ - cyg_uint32 rv = 0; - ar4prng_many(c, (void*)&rv, sizeof(rv)); - return rv; -} - -cyg_int32 ar4prng_s32(ar4ctx *c) -{ - cyg_int32 rv = 0; - ar4prng_many(c, (void*)&rv, sizeof(rv)); - return rv; -} - -#undef _SWAP -
deleted file mode 100644 --- a/packages/fs/yaffs/current/tests/fops.c +++ /dev/null @@ -1,777 +0,0 @@ -//============================================================================= -// -// ops.c -// -// Filesystem, file and directory operation tests for YAFFS on eCos -// -//============================================================================= -// ####ECOSGPLCOPYRIGHTBEGIN#### -// ------------------------------------------- -// This file is part of eCos, the Embedded Configurable Operating System. -// Copyright (C) 2009 Free Software Foundation, Inc. -// -// eCos is free software; you can redistribute it and/or modify it under -// the terms of the GNU General Public License as published by the Free -// Software Foundation; either version 2 or (at your option) any later -// version. -// -// eCos is distributed in the hope that it will be useful, but WITHOUT -// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -// for more details. -// -// You should have received a copy of the GNU General Public License -// along with eCos; if not, write to the Free Software Foundation, Inc., -// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -// -// As a special exception, if other files instantiate templates or use -// macros or inline functions from this file, or you compile this file -// and link it with other works to produce a work based on this file, -// this file does not by itself cause the resulting work to be covered by -// the GNU General Public License. However the source code for this file -// must still be made available in accordance with section (3) of the GNU -// General Public License v2. -// -// This exception does not invalidate any other reasons why a work based -// on this file might be covered by the GNU General Public License. -// ------------------------------------------- -// ####ECOSGPLCOPYRIGHTEND#### -//========================================================================== -//#####DESCRIPTIONBEGIN#### -// -// Author(s): wry -// Date: 2009-05-11 -// Description: A good (read/write) shakedown of the filesystem ops. -// On the SYNTH device, includes a long test which fills up -// the filesystem. -// -//####DESCRIPTIONEND#### -//============================================================================= - -#include <cyg/infra/testcase.h> -#include <pkgconf/system.h> - -#if !defined(CYGPKG_LIBC_TIME) || !defined(CYGPKG_ERROR) || !defined(CYGPKG_LIBC_STDIO) - -void cyg_user_start(void) -{ - CYG_TEST_NA("Needs CYGPKG_LIBC_TIME, CYGPKG_ERROR and CYGPKG_LIBC_STDIO"); -} - -#else - - -#include <cyg/infra/diag.h> -#include <cyg/fileio/fileio.h> -#include <dirent.h> -#include <errno.h> -#include <string.h> -#include <stdio.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <time.h> -#include <unistd.h> - -#define MUST(what) do { CYG_TEST_CHECK((what), #what); } while(0) - -#define MUSTOS(what) do { \ - if (0 != what) { \ - perror(#what); \ - CYG_TEST_FAIL(#what); \ - cyg_test_exit(); \ - } \ -} while(0) - -#define EXPECT(what,val) do { CYG_TEST_CHECK((what) == (val), #what "==" #val); } while(0) - -#ifdef CYGPKG_DEVS_NAND_SYNTH -#define DEVICE "synth/0" -#else -#define DEVICE "onboard/0" -#endif -#define MOUNTPOINT "/nand" -#define FSTYPE "yaffs" - -MTAB_ENTRY(my_auto, MOUNTPOINT, FSTYPE, DEVICE, 0/*priv set up by mount*/); - -void list_dir_contents(const char *dir) -{ - DIR *d = opendir(dir); - if (!d) { - diag_printf("opendir %s: %s (%d)\n", dir, strerror(errno), errno); - return; - } - diag_printf("Directory %s contains:\n", dir); - - struct dirent *de; - int n = 0; - while ((de=readdir(d))) { - diag_printf("\t%s\n", de->d_name); - ++n; - } - diag_printf("(ends)\n"); - - // Rewind and try again - int m = 0; - rewinddir(d); - while ((de=readdir(d))) - ++m; - if (n != m) - CYG_TEST_FAIL_EXIT("dir reread check failed - rewinddir broken?"); - - closedir(d); -} - -#if 0 -void MKDIR(const char *dir) -{ - MUSTOS(mkdir(dir,0777)); -} -#else -#define MKDIR(d) MUSTOS(mkdir(d,0777)) -#endif - -#if 0 -void RMDIR(const char *dir) -{ - MUSTOS(rmdir(dir)); -} -#else -#define RMDIR(d) MUSTOS(rmdir(d)) -#endif - -#define RENAME(d,d2) MUSTOS(rename(d,d2)) -#define UNLINK(p) MUSTOS(unlink(p)) -#define LINK(p1,p2) MUSTOS(link(p1,p2)) - -void CHDIR(const char *dir) -{ - MUSTOS(chdir(dir)); -} - -void WANTDIR(const char *d) -{ - struct stat st; - MUSTOS(stat(d,&st)); - EXPECT(S_ISDIR(st.st_mode),1); -} - -void DONOTWANT(const char *f) -{ - struct stat st; - if (stat(f,&st) != -1) { - diag_printf("Do not want %s, but it is there\n",f); - CYG_TEST_FAIL_EXIT("Unexpected entity present"); - } - EXPECT(errno,ENOENT); -} - -void RM_RF_work(const char *f, int recurse) -{ - //diag_printf("chdir %s <r=%d>\n",f,recurse); - MUSTOS(chdir(f)); - DIR *d = opendir("."); - if (!d) { - diag_printf("opendir %s: %s\n", f, strerror(errno)); - return; - } - //diag_printf("opened dir %s\n",f); - struct dirent de_stack; - struct dirent *de_res; - while (0==readdir_r(d, &de_stack, &de_res) && de_res) { - struct stat st; - if (0==strcmp(de_res->d_name,".")) continue; - if (0==strcmp(de_res->d_name,"..")) continue; - MUSTOS(stat(de_res->d_name,&st)); - if (S_ISDIR(st.st_mode)) { - RM_RF_work(de_res->d_name, recurse+1); - //diag_printf("rmdir %s\n", de_res->d_name); - if (rmdir(de_res->d_name)) - perror("rmdir"); - } else { - // diag_printf("unlink %s\n", de_res->d_name); - MUSTOS(unlink(de_res->d_name)); - } - // N.B. We have just unlinked a file or deleted a subdir - // during a live opendir/readdir cycle. What we get from readdir - // isn't (strictly) well-defined, but we expect to not crash. - // In fact what we get from YAFFS is probably the best - // possible behaviour: there's no explosion, and when we - // next say readdir() we get the next entry! - } - //diag_printf("rm -rf closes %s\n",f); - closedir(d); - MUSTOS(chdir("..")); - //diag_printf("chdir ..\n"); -} - -void RM_RF(const char *p) -{ - //diag_printf("chdir /\n"); - //MUSTOS(chdir(MOUNTPOINT)); - diag_printf("rm -rf %s\n",p); - RM_RF_work(p,0); - //diag_printf("rmdir %s\n",p); - RMDIR(p); -} - -void checklen(const char *f, off_t size) -{ - struct stat st; - MUSTOS(stat(f, &st)); - if (st.st_size != size) { - diag_printf("!! file %s size by stat is %lu, expect %lu\n", f, st.st_size, size); - CYG_TEST_FAIL_EXIT("file size readback mismatch"); - } -} - -// -------------------------------------------------------------- - -// Function inspiration borrowed from fileio1.c and just about -// every other filesystem in eCos... Only this time, we're -// sufficiently paranoid to want to use arc4 to generate our file data. - -#define SHOW_RESULT(fn,res) do { \ - diag_printf("%s returned %d, errno %d (%s)\n", #fn, (int)res, errno, strerror(errno)); \ - CYG_TEST_FAIL("Unexpected result from "#fn); \ - cyg_test_exit(); \ -} while(0) - -#define IOSIZE 100 - -#include "ar4prng.inl" - -#define SEEDLEN (sizeof(time_t)) -unsigned char seed[SEEDLEN]; - -ar4ctx prng; - -static void reinit_prng(void) -{ - static int seed_inited = 0; - - if (!seed_inited) { - // This is a bit cruddy, but will introduce sufficient variation to make it interesting. - *(time_t*)seed = time(0); - seed_inited=1; - } - - ar4prng_init(&prng, seed, SEEDLEN); -} - -unsigned char buf[IOSIZE], testbuf[IOSIZE]; - -static void createfile( char *name, size_t size ) -{ - int fd; - ssize_t wrote; - int err; - size_t savesize = size; - - diag_printf("<INFO>: create file %s size %zd\n",name,size); - - err = access( name, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - reinit_prng(); - - - fd = open( name, O_WRONLY|O_CREAT ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - while( size > 0 ) - { - ssize_t len = size; - if ( len > IOSIZE ) len = IOSIZE; - - ar4prng_many(&prng, buf, len); - wrote = write( fd, buf, len ); - if( wrote != len ) SHOW_RESULT( write, wrote ); - - size -= wrote; - } - - err = fsync(fd); - if (err < 0) SHOW_RESULT(fsync, err); - - struct stat st; - err = fstat(fd, &st); - if (err < 0) SHOW_RESULT(fstat, err); - if (st.st_size != savesize) - CYG_TEST_FAIL_EXIT("fstat size mismatched"); - - err = close( fd ); - if( err < 0 ) SHOW_RESULT( close, err ); -} - -static void checkfile( char *name ) -{ - int fd; - ssize_t done, pos=0, lastread=-1; - int i; - int err; - - diag_printf("<INFO>: check file %s\n",name); - - reinit_prng(); - - err = access( name, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - fd = open( name, O_RDONLY ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - for(;;) - { - done = read( fd, buf, IOSIZE ); - pos += done; - if( done < 0 ) SHOW_RESULT( read, done ); - - if( done == 0 ) break; - lastread = done; - - ar4prng_many(&prng, testbuf, done); - - for( i = 0; i < done; i++ ) - if( buf[i] != testbuf[i] ) - { - diag_printf("buf[%d](%02x) != %02x\n",i,buf[i],testbuf[i]); - CYG_TEST_FAIL_EXIT("Data read not equal to data written"); - } - } - - // While we're here, let's have a play with lseek. -#define LSEEK(f, o, w, expect) do { \ - err = lseek(f, o, w); \ - if (err != expect) SHOW_RESULT(fseek, err); \ -} while(0) - - LSEEK(fd, -lastread, SEEK_END, pos-lastread); - done = read(fd, buf, IOSIZE); - CYG_ASSERT(done == lastread, "reread last chunk size mismatch - lseek broken?"); - for (i=0; i<IOSIZE; i++) { - if (buf[i] != testbuf[i]) { - diag_printf("buf[%d](%02x) != %02x\n",i,buf[i],testbuf[i]); - CYG_TEST_FAIL_EXIT("Data mismatch - lseek broken?"); - } - } - - reinit_prng(); - ar4prng_many(&prng, testbuf, IOSIZE); - - LSEEK(fd, 10, SEEK_SET, 10); - done = read(fd, &buf[10], IOSIZE-10); - CYG_ASSERT(done == IOSIZE-10, "reading after fseek"); - LSEEK(fd, -IOSIZE, SEEK_CUR, 0); // i.e. to beginning of file - done = read(fd, buf, 10); - CYG_ASSERT(done == 10, "reading after 2nd fseek"); - for (i=0; i<IOSIZE; i++) { - if (buf[i] != testbuf[i]) { - diag_printf("buf[%d](%02x) != %02x\n",i,buf[i],testbuf[i]); - CYG_TEST_FAIL_EXIT("Data mismatch - lseek broken?"); - } - } - - err = close( fd ); - if( err < 0 ) SHOW_RESULT( close, err ); -} - -static void copyfile( char *name2, char *name1 ) -{ - int err; - int fd1, fd2; - ssize_t done, wrote; - - diag_printf("<INFO>: copy file %s -> %s\n",name2,name1); - - err = access( name1, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - err = access( name2, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - fd1 = open( name1, O_WRONLY|O_CREAT ); - if( fd1 < 0 ) SHOW_RESULT( open, fd1 ); - - fd2 = open( name2, O_RDONLY ); - if( fd2 < 0 ) SHOW_RESULT( open, fd2 ); - - for(;;) - { - done = read( fd2, buf, IOSIZE ); - if( done < 0 ) SHOW_RESULT( read, done ); - - if( done == 0 ) break; - - wrote = write( fd1, buf, done ); - if( wrote != done ) SHOW_RESULT( write, wrote ); - - if( wrote != done ) break; - } - - err = close( fd1 ); - if( err < 0 ) SHOW_RESULT( close, err ); - - err = close( fd2 ); - if( err < 0 ) SHOW_RESULT( close, err ); -} - -static void comparefiles( char *name2, char *name1 ) -{ - int err; - int fd1, fd2; - ssize_t done1, done2; - int i; - - diag_printf("<INFO>: compare files %s == %s\n",name2,name1); - - err = access( name1, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - err = access( name1, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - fd1 = open( name1, O_RDONLY ); - if( fd1 < 0 ) SHOW_RESULT( open, fd1 ); - - fd2 = open( name2, O_RDONLY ); - if( fd2 < 0 ) SHOW_RESULT( open, fd2 ); - - for(;;) - { - done1 = read( fd1, buf, IOSIZE ); - if( done1 < 0 ) SHOW_RESULT( read, done1 ); - - done2 = read( fd2, testbuf, IOSIZE ); - if( done2 < 0 ) SHOW_RESULT( read, done2 ); - - if( done1 != done2 ) - diag_printf("Files different sizes\n"); - - if( done1 == 0 ) break; - - for( i = 0; i < done1; i++ ) - if( buf[i] != testbuf[i] ) - { - diag_printf("buf[%d](%02x) != buf[%d](%02x)\n",i,buf[i],i,testbuf[i]); - CYG_TEST_FAIL("Data in files not equal\n"); - } - } - - err = close( fd1 ); - if( err < 0 ) SHOW_RESULT( close, err ); - - err = close( fd2 ); - if( err < 0 ) SHOW_RESULT( close, err ); - -} - -#ifdef CYGPKG_DEVS_NAND_SYNTH - -#include <pkgconf/devs_nand_synth.h> - -static void maxfile( char *name ) -{ - int fd; - ssize_t wrote; - int err; - size_t size = 0; - - diag_printf("<INFO>: create maximal file %s\n",name); - - err = access( name, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - reinit_prng(); - - fd = open( name, O_WRONLY|O_CREAT ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - do - { - ar4prng_many(&prng, buf, IOSIZE); - wrote = write( fd, buf, IOSIZE ); - if( wrote < 0 ) SHOW_RESULT( write, wrote ); - - CYG_ASSERT(size <= (CYGNUM_NAND_SYNTH_CHIPSIZE*1024), "filesystem overfull"); - size += wrote; - - } while( wrote == IOSIZE ); - - diag_printf("<INFO>: file size == %zd\n",size); - - err = close( fd ); - cyg_fs_setinfo(MOUNTPOINT, FS_INFO_SYNC, NULL, 0); // sync(); - if( err < 0 ) SHOW_RESULT( close, err ); -} -#endif // CYGPKG_DEVS_NAND_SYNTH - -// -------------------------------------------------------------- - -void cyg_user_start(void) -{ - CYG_TEST_INIT(); - - // 1. Mounting and unmounting. We should already be mounted - // by the time we get here (MTAB_ENTRY). - struct stat st; - MUSTOS(stat(MOUNTPOINT, &st)); - diag_printf("got mountpoint ino %08x\n",st.st_ino); - - EXPECT(mount(DEVICE, MOUNTPOINT, FSTYPE), -1); - MUSTOS(umount(MOUNTPOINT)); - EXPECT(umount(MOUNTPOINT),-1); - MUSTOS(mount(DEVICE, MOUNTPOINT, FSTYPE)); - EXPECT(mount(DEVICE, MOUNTPOINT, FSTYPE), -1); - CYG_TEST_INFO("mount, umount OK"); - - // 2. Directory creation, deletion and rename - // In fact we start by deleting if our test dir was already there... -#define DIR1 MOUNTPOINT"/testdir" -#define DIR2 MOUNTPOINT"/testdir2" - if (0==stat(DIR1, &st)) { - CYG_TEST_INFO("dir " DIR1 " already present - attempting to nuke"); - RM_RF(DIR1); - } - if (0==stat(DIR2, &st)) { - CYG_TEST_INFO("dir " DIR2 " already present - attempting to nuke"); - RM_RF(DIR2); - } - EXPECT(rmdir(DIR1),-1); - MKDIR(DIR1); - RMDIR(DIR1); - EXPECT(rmdir(DIR1),-1); - MKDIR(DIR1); - EXPECT(mkdir(DIR1,0777),-1); - - MKDIR(DIR1"/foo////"); - EXPECT(rmdir(DIR1),-1); - EXPECT(rmdir(DIR1"/."),-1); - EXPECT(rmdir(DIR1"/foo/.."),-1); - EXPECT(rmdir(DIR1"/./foo/."),-1); // Linux doesn't allow this either. - RMDIR(DIR1"/./foo/"); // Trailing slash on a dir op shouldn't catch us out - - RENAME(DIR1"/", MOUNTPOINT"/newdir/"); - WANTDIR(MOUNTPOINT"/newdir"); - WANTDIR(MOUNTPOINT"/newdir/////"); - DONOTWANT(DIR1); - RMDIR(MOUNTPOINT"/newdir"); - - EXPECT(rmdir(MOUNTPOINT"/"),-1); - EXPECT(rmdir(MOUNTPOINT),-1); - - CYG_TEST_INFO("directory creation, deletion OK"); - - // 3. chdir. We'll make a simple hierarchy: - // DIR1 - // DIR1/1 - // DIR1/1a - // DIR1/foo/1foo - // DIR2 - // DIR2/2 - // DIR2/bar/2bar - // DIR2/bar/2baz - // .. then chdir into each in turn and confirm that the contents are as expected. - MKDIR(DIR1); - MKDIR(DIR1"/1"); - MKDIR(DIR1"/1a"); - MKDIR(DIR1"/foo"); - MKDIR(DIR1"/foo/1foo"); - MKDIR(DIR2); - MKDIR(DIR2"/2"); - MKDIR(DIR2"/bar"); - MKDIR(DIR2"/bar/2bar"); - MKDIR(DIR2"/bar/2baz"); - - CHDIR(DIR1); - WANTDIR("1"); - WANTDIR("1a"); - WANTDIR("foo"); - DONOTWANT("2"); - DONOTWANT("1foo"); - DONOTWANT("bar"); - DONOTWANT("2bar"); - DONOTWANT("2baz"); - - CHDIR("foo"); - WANTDIR("1foo"); - DONOTWANT("1"); - DONOTWANT("1a"); - DONOTWANT("foo"); - - CHDIR(".."); - WANTDIR("1"); - WANTDIR("1a"); - WANTDIR("foo"); - DONOTWANT("bar"); - CHDIR("."); - WANTDIR("1"); - WANTDIR("1a"); - WANTDIR("foo"); - DONOTWANT("bar"); - WANTDIR("foo/1foo"); - RMDIR("foo/1foo"); - DONOTWANT("foo/1foo"); - - CYG_TEST_INFO("chdir, opendir, readdir OK"); - - // 4. File creation, copying, renaming, deletion - throughout dirs - - CHDIR(DIR1); - createfile("floop", 202); - checklen("floop", 202); - checkfile(DIR1"/floop"); - copyfile("floop", DIR2"/fee"); - CHDIR(DIR2); - checkfile("fee"); - checklen("fee", 202); - comparefiles("fee", DIR1"/floop"); - - copyfile("fee", DIR1"/fum"); - checkfile(DIR1"/fum"); - chdir(DIR1); - checkfile("fum"); - comparefiles("floop", "fum"); - comparefiles("fum", DIR2"/fee"); - - // Rename ... - RENAME("fum", DIR2"/fum2"); - DONOTWANT("fum"); - DONOTWANT("fum2"); - DONOTWANT(DIR1"/fum"); - checkfile(DIR2"/fum2"); - CHDIR(DIR2); - checkfile("fum2"); - CHDIR(DIR1); - RENAME(DIR2"/fum2", "fum3"); - checkfile("fum3"); - checkfile(DIR1"/fum3"); - DONOTWANT(DIR2"/fum3"); - comparefiles(DIR1"/fum3", DIR1"/floop"); - CHDIR(DIR2); - comparefiles(DIR1"/fum3", DIR1"/floop"); - - // A brief diversion to check rewinddir... - list_dir_contents(DIR1); - - // Create-over, rename-over - CHDIR(DIR1); - checklen("floop", 202); - checklen(DIR2"/fee", 202); - createfile(DIR2"/fee", 4242); - checklen(DIR2"/fee", 4242); - checklen("floop", 202); - RENAME(DIR2"/fee", "floop"); - checklen("floop", 4242); - - // Unlink - CHDIR(DIR2); - UNLINK(DIR1"/fum3"); - DONOTWANT(DIR1"/fum3"); - DONOTWANT("fum3"); - CHDIR(DIR1); - DONOTWANT("fum3"); - - CYG_TEST_INFO("file create/read/write, copy, delete OK"); - - // 5. File hard links (and directory, which aren't supported) - - LINK("floop","floop2"); - checklen("floop2", 4242); - LINK("floop",DIR2"/floop3"); - CHDIR(DIR2); - LINK(DIR1"/floop", "floop4"); - LINK(DIR1"/floop", DIR1"/floop5"); - DONOTWANT("floop2"); - checkfile("floop3"); - checkfile("floop4"); - DONOTWANT("floop5"); - CHDIR(DIR1); - checkfile("floop2"); - DONOTWANT("floop3"); - DONOTWANT("floop4"); - checkfile("floop5"); - - checkfile(DIR1"/floop2"); - checkfile(DIR2"/floop3"); - checkfile(DIR2"/floop4"); - checkfile(DIR1"/floop5"); - - UNLINK("floop2"); - UNLINK(DIR2"/floop3"); - CHDIR(DIR2); - UNLINK("floop4"); - UNLINK(DIR1"/floop5"); - - DONOTWANT(DIR1"/floop2"); - DONOTWANT(DIR2"/floop3"); - DONOTWANT(DIR2"/floop4"); - DONOTWANT(DIR1"/floop5"); - - CHDIR(DIR1); - checkfile("floop"); - // we'll leave floop lying around for fpathconf() test - - EXPECT(link(DIR1, DIR2"/dir-hardlink-should-fail"), -1); - EXPECT(errno, EPERM); - - CYG_TEST_INFO("hard links OK"); - -#ifdef CYGPKG_DEVS_NAND_SYNTH - // 6. EOF-on-write (by filling the filesystem!) - CYG_TEST_INFO("bigfile test, this might take a few seconds"); - - // To speed this test up tune your synth nand device to not be so big. - maxfile(DIR1"/bigfile"); - checkfile(DIR1"/bigfile"); - { - struct stat st; - stat(DIR1"/bigfile", &st); - } - UNLINK(DIR1"/bigfile"); - CYG_TEST_INFO("EOF on write OK"); -#else - CYG_TEST_INFO("SKIPPING EOF-on-write test (only applied to synth nand)"); -#endif - - // 7. Ancillary checks - getinfo, setinfo (no ioctls supported as yet) - -#ifdef CYGSEM_FILEIO_INFO_DISK_USAGE - struct cyg_fs_disk_usage usage; - MUSTOS(cyg_fs_getinfo(MOUNTPOINT, FS_INFO_DISK_USAGE, &usage, sizeof(usage))); - diag_printf("getinfo/disk_usage says:\n\ttotal blocks %llu\n\tfree blocks %llu\n\tblock size %u\n", usage.total_blocks, usage.free_blocks, usage.block_size); -#endif - - diag_printf("pathconf says:\n\tNAME_MAX %ld\n\tPATH_MAX %ld\n\tSYNC_IO %ld\n", - pathconf(DIR1, _PC_NAME_MAX), - pathconf(DIR1, _PC_PATH_MAX), - pathconf(DIR1, _PC_SYNC_IO)); - - MUSTOS(cyg_fs_setinfo(MOUNTPOINT, FS_INFO_SYNC, 0, 0)); - - int fd = open(DIR1"/floop", O_RDONLY); - CYG_ASSERT(fd >= 0, "open"); - CYG_ASSERT(fpathconf(fd, _PC_NAME_MAX) != -1, "fpathconf PC_NAME_MAX"); - close(fd); - - CYG_TEST_INFO("getinfo, setinfo OK"); - - // Clean up. - - CHDIR(MOUNTPOINT); - RM_RF(DIR1); - RM_RF(DIR2); - DONOTWANT(DIR1); - DONOTWANT(DIR2); - CYG_TEST_INFO("recursive deletion OK"); - - MUSTOS(umount(MOUNTPOINT)); -#ifndef CYGDBG_USE_ASSERTS - CYG_TEST_INFO("WARNING: asserts disabled, test INCOMPLETE, try switching on CYGPKG_INFRA_DEBUG"); -#else - CYG_TEST_PASS_FINISH("All OK"); -#endif -} - -#endif -
deleted file mode 100644 --- a/packages/fs/yaffs/current/tests/mounttime.c +++ /dev/null @@ -1,303 +0,0 @@ -//============================================================================= -// -// mounttime.c -// -// Mount timings exerciser, use on a filesystem filled by `makefiles' -// THIS DOES NOT CURRENTLY WORK ON non-PRO eCos! -// -//============================================================================= -// ####ECOSGPLCOPYRIGHTBEGIN#### -// ------------------------------------------- -// This file is part of eCos, the Embedded Configurable Operating System. -// Copyright (C) 2009 Free Software Foundation, Inc. -// -// eCos is free software; you can redistribute it and/or modify it under -// the terms of the GNU General Public License as published by the Free -// Software Foundation; either version 2 or (at your option) any later -// version. -// -// eCos is distributed in the hope that it will be useful, but WITHOUT -// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -// for more details. -// -// You should have received a copy of the GNU General Public License -// along with eCos; if not, write to the Free Software Foundation, Inc., -// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -// -// As a special exception, if other files instantiate templates or use -// macros or inline functions from this file, or you compile this file -// and link it with other works to produce a work based on this file, -// this file does not by itself cause the resulting work to be covered by -// the GNU General Public License. However the source code for this file -// must still be made available in accordance with section (3) of the GNU -// General Public License v2. -// -// This exception does not invalidate any other reasons why a work based -// on this file might be covered by the GNU General Public License. -// ------------------------------------------- -// ####ECOSGPLCOPYRIGHTEND#### -//========================================================================== -//#####DESCRIPTIONBEGIN#### -// -// Author(s): wry -// Date: 2009-06-29 -// Description: File system mount and unmount timing benchmark. -// Intended to be used on a complicated filesystem, e.g. -// one filled up by `makefiles'. -// Some timing code borrowed from mmfs tests. -// -//####DESCRIPTIONEND#### -//============================================================================= - -#include <cyg/infra/testcase.h> -#include <cyg/infra/diag.h> -#include <cyg/infra/cyg_ass.h> -#include <pkgconf/system.h> -#include <pkgconf/hal.h> -#include <cyg/hal/hal_intr.h> - -#ifndef HAL_CLOCK_READ -# error "HAL_CLOCK_READ not defined!" -#endif - -#if !defined(CYGPKG_LIBC_TIME) || !defined(CYGPKG_ERROR) || !defined(CYGPKG_LIBC_STDIO) || !defined(CYGPKG_KERNEL) - -void cyg_user_start(void) -{ - CYG_TEST_NA("Needs CYGPKG_KERNEL, CYGPKG_LIBC_TIME, CYGPKG_ERROR and CYGPKG_LIBC_STDIO"); -} - -#else - -#include <cyg/fileio/fileio.h> -#include <string.h> -#include <stdio.h> -#include <unistd.h> -#include <sys/types.h> -#include <dirent.h> -#include <stdlib.h> - -#include <cyg/kernel/kapi.h> - -#ifdef CYGPKG_DEVS_NAND_SYNTH -#define DEVICE "synth/0" -#else -#define DEVICE "onboard/0" -#endif - -#define MOUNTPOINT "/n" -#define FSTYPE "yaffs" -#define _NOCACHE "skip-checkpoint-read" - -#define FS_NOCACHE FSTYPE":"_NOCACHE - -//#define MUST(what) do { CYG_TEST_CHECK((what), #what); } while(0) - -#define MUST(what) do { \ - if (0 != what) { \ - perror(#what); \ - CYG_TEST_FAIL(#what); \ - cyg_test_exit(); \ - } \ -} while(0) - -#define min(a,b) ( (a) > (b) ? (b) : (a) ) - -// -------------------------------------------------------------- - -void RM_RF_work(const char *f, int recurse) -{ - MUST(chdir(f)); - DIR *d = opendir("."); - if (!d) { - diag_printf("opendir %s: %s\n", f, strerror(errno)); - return; - } - struct dirent de_stack; - struct dirent *de_res; - while (0==readdir_r(d, &de_stack, &de_res) && de_res) { - struct stat st; - if (0==strcmp(de_res->d_name,".")) continue; - if (0==strcmp(de_res->d_name,"..")) continue; - MUST(stat(de_res->d_name,&st)); - if (S_ISDIR(st.st_mode)) { - RM_RF_work(de_res->d_name, recurse+1); - if (rmdir(de_res->d_name)) - perror("rmdir"); - } else { - MUST(unlink(de_res->d_name)); - } - } - closedir(d); - MUST(chdir("..")); -} - -void RM_RF(const char *p) -{ - diag_printf("rm -rf %s\n",p); - RM_RF_work(p,0); - MUST(rmdir(p)); -} - -// -------------------------------------------------------------- -// Timing code cribbed from pvr5.c - -typedef struct -{ - cyg_int64 ticks; - cyg_uint32 halticks; -} timestamp; - -typedef struct -{ - timestamp start; - timestamp end; - cyg_int64 interval; // In HAL ticks - cyg_int64 us_interval; // Interval in microseconds -} timing; - -static cyg_int64 ticks_overhead = 0; -static cyg_int32 us_per_haltick = 0; -static cyg_int32 halticks_per_us = 0; - -static cyg_int64 rtc_resolution[] = CYGNUM_KERNEL_COUNTERS_RTC_RESOLUTION; -static cyg_int64 rtc_period = CYGNUM_KERNEL_COUNTERS_RTC_PERIOD; - -static void wait_for_tick( void ) -{ - cyg_tick_count_t now = cyg_current_time(); - - while( cyg_current_time() == now ) - continue; -} - -static void get_timestamp( timestamp *ts ) -{ - ts->ticks = cyg_current_time(); - HAL_CLOCK_READ( &ts->halticks ); -} - -static cyg_int64 ticks_to_us( cyg_int64 ticks ) -{ - cyg_int64 us; - - if( us_per_haltick != 0 ) - us = ticks * us_per_haltick; - else - us = ticks / halticks_per_us; - - return us; -} - -static void calculate_interval( timing *t ) -{ - t->interval = t->end.halticks - t->start.halticks; - - t->interval += (t->end.ticks - t->start.ticks) * rtc_period; - - t->interval -= ticks_overhead; - - t->us_interval = ticks_to_us( t->interval ); -} - -static void init_timing( void ) -{ - timing t; - cyg_thread_delay(2); // ensure clock running - asserts if not - - us_per_haltick = 1000000/(rtc_period * rtc_resolution[1]); - halticks_per_us = (rtc_period * rtc_resolution[1])/1000000; - - wait_for_tick(); - - get_timestamp( &t.start ); - get_timestamp( &t.end ); - - calculate_interval( &t ); - - ticks_overhead = t.interval; - - diag_printf("Timing overhead %lld ticks (%lluus), this will be factored out of all other measurements\n", ticks_overhead, t.us_interval ); -} - -static timing tm; - -#define START() do { \ - wait_for_tick(); \ - get_timestamp(&tm.start); \ -} while(0) - -static void report(const char *what, timing tm) -{ - if (tm.us_interval > 1100000) - diag_printf("%30s: %2d.%03d s\n", what, (int)(tm.us_interval/1000000), (int)(tm.us_interval/1000)%1000); - else - diag_printf("%30s: %2d.%03d ms\n", what, (int)(tm.us_interval/1000), (int)(tm.us_interval%1000)); - -} - -#define STOP(what) do { \ - get_timestamp(&tm.end); \ - calculate_interval(&tm); \ - report(what, tm); \ -} while(0) - -// -------------------------------------------------------------- - -void dumpmallinfo(void) -{ - struct mallinfo mi = mallinfo(); - int total_ord = mi.uordblks + mi.fordblks; - double pct = (double)mi.uordblks / (double)total_ord; - diag_printf("! Arena: size 0x%x, small blks %u/%u, ord blks used %u/%u (%u%%)\n", - mi.arena, - mi.usmblks, mi.fsmblks, - mi.uordblks, total_ord, (int)(100.0*pct)); -} - -// -------------------------------------------------------------- - -#define WORKDIR MOUNTPOINT "/" "test" - -void mounttime_main(void) -{ -#define NTIMES 3 - int i; - for (i=0; i<NTIMES; i++) { - START(); - MUST(mount(DEVICE, MOUNTPOINT, FSTYPE)); - STOP("remount"); - //if (i==0) dumpmallinfo(); - START(); - MUST(umount(MOUNTPOINT)); - STOP("unmount"); - - START(); - MUST(mount(DEVICE, MOUNTPOINT, FS_NOCACHE)); - // plain eCos does not support mount options, this test won't work there. - STOP("remount without checkpoint"); - //if (i==0) dumpmallinfo(); - START(); - MUST(umount(MOUNTPOINT)); - STOP("unmount"); - //if (i==0) dumpmallinfo(); - } - //dumpmallinfo(); - - // then consider repeats.. - - CYG_TEST_EXIT("Run complete"); -} - -int main(void) -{ - CYG_TEST_INIT(); - init_timing(); - - mounttime_main(); - return 0; -} - -#endif -
deleted file mode 100644 --- a/packages/fs/yaffs/current/tests/yaffs1.c +++ /dev/null @@ -1,975 +0,0 @@ -//========================================================================== -// -// yaffs1.c -// -// Test fileio system -// -//========================================================================== -// ####ECOSGPLCOPYRIGHTBEGIN#### -// ------------------------------------------- -// This file is part of eCos, the Embedded Configurable Operating System. -// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004, 2006, 2007 Free Software Foundation, Inc. -// Copyright (C) 2004, 2006, 2007 eCosCentric Limited -// -// eCos is free software; you can redistribute it and/or modify it under -// the terms of the GNU General Public License as published by the Free -// Software Foundation; either version 2 or (at your option) any later -// version. -// -// eCos is distributed in the hope that it will be useful, but WITHOUT -// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -// for more details. -// -// You should have received a copy of the GNU General Public License -// along with eCos; if not, write to the Free Software Foundation, Inc., -// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -// -// As a special exception, if other files instantiate templates or use -// macros or inline functions from this file, or you compile this file -// and link it with other works to produce a work based on this file, -// this file does not by itself cause the resulting work to be covered by -// the GNU General Public License. However the source code for this file -// must still be made available in accordance with section (3) of the GNU -// General Public License v2. -// -// This exception does not invalidate any other reasons why a work based -// on this file might be covered by the GNU General Public License. -// ------------------------------------------- -// ####ECOSGPLCOPYRIGHTEND#### -//========================================================================== -//#####DESCRIPTIONBEGIN#### -// -// Author(s): nickg -// Contributors: nickg -// Date: 2000-05-25 -// Purpose: Test fileio system -// Description: This test uses the testfs to check out the initialization -// and basic operation of the fileio system -// -// -// -// -// -// -// -//####DESCRIPTIONEND#### -// -//========================================================================== - -#include <pkgconf/system.h> - -#ifdef CYGPKG_KERNEL - -#include <pkgconf/hal.h> -#include <pkgconf/kernel.h> -#include <pkgconf/io_fileio.h> - -#include CYGDAT_DEVS_DISK_CFG // testing config defines - -#include <cyg/kernel/ktypes.h> // base kernel types -#include <cyg/infra/cyg_trac.h> // tracing macros -#include <cyg/infra/cyg_ass.h> // assertion macros - -#include <unistd.h> -#include <fcntl.h> -#include <sys/stat.h> -#include <errno.h> -#include <string.h> -#include <dirent.h> - -#include <cyg/fileio/fileio.h> - -#include <cyg/infra/testcase.h> -#include <cyg/infra/diag.h> // HAL polled output - -//========================================================================== -// Config options - -#define TEST_DEVICE CYGDAT_DEVS_DISK_TEST_DEVICE - -#define TEST_MOUNTPOINT CYGDAT_DEVS_DISK_TEST_MOUNTPOINT - -#define TEST_DIRECTORY CYGDAT_DEVS_DISK_TEST_DIRECTORY - -#define TEST_FSTYPE "yaffs" - -#ifdef CYGDAT_DEVS_DISK_TEST_MOUNTPOINT2 - -#define TEST_DEVICE2 CYGDAT_DEVS_DISK_TEST_DEVICE2 - -#define TEST_MOUNTPOINT2 CYGDAT_DEVS_DISK_TEST_MOUNTPOINT2 - -#define TEST_DIRECTORY2 CYGDAT_DEVS_DISK_TEST_DIRECTORY2 - -#define TEST_FSTYPE2 "yaffs" - -#endif - -//========================================================================== - -#define SHOW_RESULT( _fn, _res ) \ -{ \ - diag_printf("<FAIL>: " #_fn "() returned %ld %s\n", (long)_res, _res<0?strerror(errno):""); \ -} - -//========================================================================== - -#define IOSIZE 100 - -#define LONGNAME1 "long_file_name_that_should_take_up_more_than_one_directory_entry_1" -#define LONGNAME2 "long_file_name_that_should_take_up_more_than_one_directory_entry_2" - - -//========================================================================== - -#ifndef CYGPKG_LIBC_STRING - -char *strcat( char *s1, const char *s2 ) -{ - char *s = s1; - while( *s1 ) s1++; - while( (*s1++ = *s2++) != 0); - return s; -} - -#endif - -__externC int -rename( const char * /* oldpath */, const char * /* newpath */ ) __THROW; - -//========================================================================== - -static void listdir( char *name, int statp, int numexpected, int *numgot ) -{ - int err; - DIR *dirp; - int num=0; - - diag_printf("<INFO>: reading directory %s\n",name); - -// diag_printf("<INFO>: opendir(%s)\n",name); - dirp = opendir( name ); - if( dirp == NULL ) SHOW_RESULT( opendir, -1 ); - - for(;;) - { - struct dirent *entry = readdir( dirp ); - - if( entry == NULL ) - break; - num++; - diag_printf("<INFO>: entry %14s",entry->d_name); -#ifdef CYGPKG_FS_FAT_RET_DIRENT_DTYPE - diag_printf(" d_type %2x", entry->d_type); -#endif - if( statp ) - { - char fullname[PATH_MAX]; - struct stat sbuf; - - if( name[0] ) - { - strcpy(fullname, name ); - if( !(name[0] == '/' && name[1] == 0 ) ) - strcat(fullname, "/" ); - } - else fullname[0] = 0; - - strcat(fullname, entry->d_name ); - - err = stat( fullname, &sbuf ); - if( err < 0 ) - { - if( errno == ENOSYS ) - diag_printf(" <no status available>"); - else SHOW_RESULT( stat, err ); - } - else - { - diag_printf(" [mode %08x ino %08x nlink %d size %ld]", - sbuf.st_mode,sbuf.st_ino,sbuf.st_nlink,sbuf.st_size); - } -#ifdef CYGPKG_FS_FAT_RET_DIRENT_DTYPE - if ((entry->d_type & S_IFMT) != (sbuf.st_mode & S_IFMT)) - CYG_TEST_FAIL("File mode's don't match between dirent and stat"); -#endif - } - - diag_printf("\n"); - } - -// diag_printf("<INFO>: closedir(%s)\n",name); - err = closedir( dirp ); - if( err < 0 ) SHOW_RESULT( stat, err ); - if (numexpected >= 0 && num != numexpected) - CYG_TEST_FAIL("Wrong number of dir entries\n"); - if ( numgot != NULL ) - *numgot = num; -} - -//========================================================================== - -static void createfile( char *name, size_t size ) -{ - char buf[IOSIZE]; - int fd; - ssize_t wrote; - int i; - int err; - - diag_printf("<INFO>: create file %s size %zd\n",name,size); - - err = access( name, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - for( i = 0; i < IOSIZE; i++ ) buf[i] = i%256; - - fd = open( name, O_WRONLY|O_CREAT ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - while( size > 0 ) - { - ssize_t len = size; - if ( len > IOSIZE ) len = IOSIZE; - - wrote = write( fd, buf, len ); - if( wrote != len ) SHOW_RESULT( write, wrote ); - - size -= wrote; - } - - err = close( fd ); - if( err < 0 ) SHOW_RESULT( close, err ); -} - -//========================================================================== - -#if 0 -static void maxfile( char *name ) -{ - char buf[IOSIZE]; - int fd; - ssize_t wrote; - int i; - int err; - size_t size = 0; - size_t prevsize = 0; - - diag_printf("<INFO>: create maximal file %s\n",name); - diag_printf("<INFO>: This may take a few minutes\n"); - - err = access( name, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - for( i = 0; i < IOSIZE; i++ ) buf[i] = i%256; - - fd = open( name, O_WRONLY|O_CREAT ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - do - { - wrote = write( fd, buf, IOSIZE ); - //if( wrote < 0 ) SHOW_RESULT( write, wrote ); - - if( wrote >= 0 ) - size += wrote; - - if( (size-prevsize) > 100000 ) - { - diag_printf("<INFO>: size = %zd\n", size); - prevsize = size; - } - - } while( wrote == IOSIZE ); - - diag_printf("<INFO>: file size == %zd\n",size); - - err = close( fd ); - if( err < 0 ) SHOW_RESULT( close, err ); -} -#endif - -//========================================================================== - -static void checkfile( char *name ) -{ - char buf[IOSIZE]; - int fd; - ssize_t done; - int i; - int err; - off_t pos = 0; - - diag_printf("<INFO>: check file %s\n",name); - - err = access( name, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - fd = open( name, O_RDONLY ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - for(;;) - { - done = read( fd, buf, IOSIZE ); - if( done < 0 ) SHOW_RESULT( read, done ); - - if( done == 0 ) break; - - for( i = 0; i < done; i++ ) - if( buf[i] != i%256 ) - { - diag_printf("buf[%ld+%d](%02x) != %02x\n",pos,i,buf[i],i%256); - CYG_TEST_FAIL("Data read not equal to data written\n"); - for(;;); - } - - pos += done; - } - - err = close( fd ); - if( err < 0 ) SHOW_RESULT( close, err ); -} - -//========================================================================== - -static void copyfile( char *name2, char *name1 ) -{ - - int err; - char buf[IOSIZE]; - int fd1, fd2; - ssize_t done, wrote; - - diag_printf("<INFO>: copy file %s -> %s\n",name2,name1); - - err = access( name1, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - err = access( name2, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - fd1 = open( name1, O_WRONLY|O_CREAT ); - if( fd1 < 0 ) SHOW_RESULT( open, fd1 ); - - fd2 = open( name2, O_RDONLY ); - if( fd2 < 0 ) SHOW_RESULT( open, fd2 ); - - for(;;) - { - done = read( fd2, buf, IOSIZE ); - if( done < 0 ) SHOW_RESULT( read, done ); - - if( done == 0 ) break; - - wrote = write( fd1, buf, done ); - if( wrote != done ) SHOW_RESULT( write, wrote ); - - if( wrote != done ) break; - } - - err = close( fd1 ); - if( err < 0 ) SHOW_RESULT( close, err ); - - err = close( fd2 ); - if( err < 0 ) SHOW_RESULT( close, err ); - -} - -//========================================================================== - -static void comparefiles( char *name2, char *name1 ) -{ - int err; - char buf1[IOSIZE]; - char buf2[IOSIZE]; - int fd1, fd2; - ssize_t done1, done2; - int i; - - diag_printf("<INFO>: compare files %s == %s\n",name2,name1); - - err = access( name1, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - err = access( name1, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - fd1 = open( name1, O_RDONLY ); - if( fd1 < 0 ) SHOW_RESULT( open, fd1 ); - - fd2 = open( name2, O_RDONLY ); - if( fd2 < 0 ) SHOW_RESULT( open, fd2 ); - - for(;;) - { - done1 = read( fd1, buf1, IOSIZE ); - if( done1 < 0 ) SHOW_RESULT( read, done1 ); - - done2 = read( fd2, buf2, IOSIZE ); - if( done2 < 0 ) SHOW_RESULT( read, done2 ); - - if( done1 != done2 ) - diag_printf("Files different sizes\n"); - - if( done1 == 0 ) break; - - for( i = 0; i < done1; i++ ) - if( buf1[i] != buf2[i] ) - { - diag_printf("buf1[%d](%02x) != buf1[%d](%02x)\n",i,buf1[i],i,buf2[i]); - CYG_TEST_FAIL("Data in files not equal\n"); - } - } - - err = close( fd1 ); - if( err < 0 ) SHOW_RESULT( close, err ); - - err = close( fd2 ); - if( err < 0 ) SHOW_RESULT( close, err ); - -} - -//========================================================================== - -void checkcwd( const char *cwd ) -{ - static char cwdbuf[PATH_MAX]; - char *ret; - - ret = getcwd( cwdbuf, sizeof(cwdbuf)); - if( ret == NULL ) SHOW_RESULT( getcwd, ret ); - - if( strcmp( cwdbuf, cwd ) != 0 ) - { - diag_printf( "cwdbuf %s cwd %s\n",cwdbuf, cwd ); - CYG_TEST_FAIL( "Current directory mismatch"); - } -} - -//========================================================================== -// main - -void fileio1_main( CYG_ADDRESS id ) -{ - int err; - int existingdirents=-1; - cyg_bool mp2 = false; - int fd; -#if defined(CYGSEM_FILEIO_BLOCK_USAGE) - struct cyg_fs_block_usage usage; -#endif - - char dirname[64]; - char filename1[64]; - char filename2[64]; - -#define NEW_FILENAME( fn, f ) \ -{ \ - fn[0]=0; \ - strcat(fn, dirname); \ - strcat(fn, "/"); \ - strcat(fn,f); \ -} - -#define NEW_FILENAME1( f ) NEW_FILENAME( filename1, f ) -#define NEW_FILENAME2( f ) NEW_FILENAME( filename2, f ) - - CYG_TEST_INIT(); - - // -------------------------------------------------------------- - - err = mount( TEST_DEVICE, TEST_MOUNTPOINT, TEST_FSTYPE ); - if( err < 0 ) { - SHOW_RESULT( mount, err ); - CYG_TEST_FAIL_FINISH("yaffs1"); - } - - err = access( TEST_MOUNTPOINT TEST_DIRECTORY, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - if( err < 0 && errno == EACCES ) - { - diag_printf("<INFO>: create %s\n", - TEST_MOUNTPOINT TEST_DIRECTORY); - err = mkdir( TEST_MOUNTPOINT TEST_DIRECTORY, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - } - - err = chdir( TEST_MOUNTPOINT TEST_DIRECTORY ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - checkcwd( TEST_MOUNTPOINT TEST_DIRECTORY ); - - listdir( TEST_MOUNTPOINT TEST_DIRECTORY, true, -1, &existingdirents ); - - // -------------------------------------------------------------- -#if defined(CYGSEM_FILEIO_BLOCK_USAGE) - err = cyg_fs_getinfo(TEST_MOUNTPOINT, FS_INFO_BLOCK_USAGE, - &usage, sizeof(usage)); - if( err < 0 ) SHOW_RESULT( cyg_fs_getinfo, err ); - diag_printf("<INFO>: total size: %6lld blocks, %10lld bytes\n", - usage.total_blocks, usage.total_blocks * usage.block_size); - diag_printf("<INFO>: free size: %6lld blocks, %10lld bytes\n", - usage.free_blocks, usage.free_blocks * usage.block_size); - diag_printf("<INFO>: block size: %6u bytes\n", usage.block_size); -#endif - // -------------------------------------------------------------- - - dirname[0] = 0; - strcat(dirname, TEST_MOUNTPOINT ); - strcat(dirname, TEST_DIRECTORY ); - - // -------------------------------------------------------------- - - createfile( "foo", 20257 ); - checkfile( "foo" ); - copyfile( "foo", "fee"); - checkfile( "fee" ); - comparefiles( "foo", "fee" ); - diag_printf("<INFO>: mkdir bar\n"); - err = mkdir( "bar", 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - listdir( dirname , true, existingdirents+3, NULL ); - - copyfile( "fee", "bar/fum" ); - checkfile( "bar/fum" ); - comparefiles( "fee", "bar/fum" ); - diag_printf("<INFO>: cd bar\n"); - err = chdir( "bar" ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - // Create a further subdirectory and immediately remove it - // This should make no overall change, but may expose later - // node cache reference counting issues. - diag_printf("<INFO>: mkdir delme\n"); - err = mkdir( "delme", 0); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - diag_printf("<INFO>: cd delme\n"); - err = chdir( "delme"); - if( err < 0 ) SHOW_RESULT( chdir, err ); - diag_printf("<INFO>: cd ..\n"); - err = chdir( ".." ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - diag_printf("<INFO>: rmdir delme\n"); - err = rmdir( "delme" ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - NEW_FILENAME1( "bar/delme1" ); - diag_printf("<INFO>: mkdir %s\n",filename1); - err = mkdir( filename1, 0); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - diag_printf("<INFO>: rmdir %s\n",filename1); - err = rmdir( filename1 ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - - NEW_FILENAME1( "bar" ); - checkcwd( filename1 ); - - diag_printf("<INFO>: rename ../foo bundy\n"); - err = rename( "../foo", "bundy" ); - if( err < 0 ) SHOW_RESULT( rename, err ); - - listdir( dirname, true, existingdirents+2, NULL ); - listdir( "." , true, 4, NULL ); - - checkfile( "../bar/bundy" ); - comparefiles("../fee", "bundy" ); - -#if defined(CYGSEM_FILEIO_BLOCK_USAGE) - err = cyg_fs_getinfo(TEST_MOUNTPOINT, FS_INFO_BLOCK_USAGE, - &usage, sizeof(usage)); - if( err < 0 ) SHOW_RESULT( cyg_fs_getinfo, err ); - diag_printf("<INFO>: total size: %6lld blocks, %10lld bytes\n", - usage.total_blocks, usage.total_blocks * usage.block_size); - diag_printf("<INFO>: free size: %6lld blocks, %10lld bytes\n", - usage.free_blocks, usage.free_blocks * usage.block_size); - diag_printf("<INFO>: block size: %6u bytes\n", usage.block_size); -#endif - // -------------------------------------------------------------- - // Check for some common error cases - - - // First make some directories - diag_printf("<INFO>: mkdir doo\n"); - err = mkdir( "doo", 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - diag_printf("<INFO>: mkdir fie\n"); - err = mkdir( "fie", 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - diag_printf("<INFO>: mkdir fie/foe\n"); - err = mkdir( "fie/foe", 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - - diag_printf("<INFO>: rename fum doo -- should fail\n"); - err = rename( "fum", "doo" ); - if( err < 0 && errno != EISDIR ) SHOW_RESULT( rename, err ); - - diag_printf("<INFO>: rename doo fum -- should fail\n"); - err = rename( "doo", "fum" ); - if( err < 0 && errno != ENOTDIR ) SHOW_RESULT( rename, err ); - - diag_printf("<INFO>: rename doo fie -- should fail\n"); - err = rename( "doo", "fie" ); - // FATFS returns ENOTEMPTY, since fie has foe within it - if( err < 0 && errno != EIO ) SHOW_RESULT( rename, err ); - - diag_printf("<INFO>: open floop for reading -- should fail\n"); - err = open( "floop", O_RDONLY ); - if( err < 0 && errno != ENOENT ) SHOW_RESULT( open, err ); - - NEW_FILENAME1( "x/y" ) - diag_printf("<INFO>: rename fum %s -- should fail\n",filename1); - err = rename( "fum", filename1 ); - if( err < 0 && errno != ENOENT ) SHOW_RESULT( rename, err ); - - diag_printf("<INFO>: rename fum fum -- should succeed\n"); - err = rename( "fum", "fum" ); - if( err < 0 ) SHOW_RESULT( rename, err ); - - diag_printf("<INFO>: unlink fee -- should fail\n"); - err = unlink( "fee" ); - if( err < 0 && errno != ENOENT ) SHOW_RESULT( unlink, err ); - - NEW_FILENAME1( "bar" ); - diag_printf("<INFO>: rmdir %s -- should fail\n",filename1); - err = rmdir( filename1 ); - // FATFS gives EBUSY here, since bar is the current dir - if( err < 0 && errno != ENOTEMPTY ) SHOW_RESULT( rmdir, err ); - - diag_printf("<INFO>: unlink %s -- should fail\n",filename1); - err = unlink( filename1 ); - // FATFS returns EBUSY here, also because bar is current dir - if( err < 0 && errno != EISDIR ) SHOW_RESULT( unlink, err ); - - NEW_FILENAME1( "bar/fum" ); - diag_printf("<INFO>: rmdir %s -- should fail\n",filename1); - err = rmdir( filename1 ); - if( err < 0 && errno != ENOTDIR ) SHOW_RESULT( rmdir, err ); - - diag_printf("<INFO>: mkdir %s -- should fail\n",filename1); - err = mkdir( filename1, 0 ); - if( err < 0 && errno != EEXIST ) SHOW_RESULT( mkdir, err ); - - diag_printf("<INFO>: open bundy exclusive -- should fail\n"); - fd = open( "bundy", O_WRONLY|O_CREAT|O_EXCL ); - if( fd < 0 && errno != EEXIST ) SHOW_RESULT( open, fd ); - - diag_printf("<INFO>: open %s -- should fail\n",dirname); - fd = open( dirname, O_WRONLY ); - if( fd < 0 && errno != EISDIR ) SHOW_RESULT( open, fd ); - - - listdir( dirname, true, existingdirents+2, NULL ); - listdir( "." , true, 6, NULL ); - - // -------------------------------------------------------------- - - diag_printf("<INFO>: rename fie doo\n"); - err = rename( "fie", "doo" ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: rmdir doo/foe\n"); - err = rmdir("doo/foe"); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: rmdir doo\n"); - err = rmdir("doo"); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink ../fee\n"); - err = unlink( "../fee" ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink fum\n"); - err = unlink( "fum" ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink ../bar/bundy\n"); - err = unlink( "../bar/bundy" ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: cd ..\n"); - err = chdir( ".." ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - checkcwd( dirname ); - - diag_printf("<INFO>: rmdir bar\n"); - err = rmdir( "bar" ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - listdir( dirname, false, existingdirents, NULL ); - - // -------------------------------------------------------------- - -#ifdef TEST_MOUNTPOINT2 - diag_printf("<INFO>: mount %s\n", TEST_MOUNTPOINT2); - err = mount( TEST_DEVICE2, TEST_MOUNTPOINT2, TEST_FSTYPE2 ); - - if( err == 0 ) - { - mp2 = true; - diag_printf("<INFO>: mount %s succeeded\n", TEST_MOUNTPOINT2); - err = access( TEST_MOUNTPOINT2 TEST_DIRECTORY2, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - if( err < 0 && errno == EACCES ) - { - diag_printf("<INFO>: create %s\n", - TEST_MOUNTPOINT2 TEST_DIRECTORY2); - err = mkdir( TEST_MOUNTPOINT2 TEST_DIRECTORY2, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - } - - err = chdir( TEST_MOUNTPOINT2 TEST_DIRECTORY2 ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - checkcwd( TEST_MOUNTPOINT2 TEST_DIRECTORY2 ); - - dirname[0] = 0; - strcat(dirname, TEST_MOUNTPOINT2 ); - strcat(dirname, TEST_DIRECTORY2 ); - - } - else - { - mp2 = false; - diag_printf("<INFO>: mount %s failed, ", TEST_MOUNTPOINT2); - diag_printf("using %s instead\n", dirname ); - } - -#endif - - listdir( dirname , true, -1, &existingdirents); - - NEW_FILENAME1( "tinky" ); - NEW_FILENAME2( "laalaa" ); - - createfile( filename1, 4567 ); - copyfile( filename1, filename2 ); - checkfile( filename1); - checkfile( filename2); - comparefiles( filename1, filename2 ); - - diag_printf("<INFO>: cd %s\n",dirname); - err = chdir( dirname ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - checkcwd( dirname ); - - diag_printf("<INFO>: mkdir noonoo\n"); - err = mkdir( "noonoo", 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - listdir( dirname , true, existingdirents+3, NULL); - - diag_printf("<INFO>: cd noonoo\n"); - err = chdir( "noonoo" ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - NEW_FILENAME1( "noonoo" ); - checkcwd( filename1 ); - - createfile( "tinky", 6789 ); - checkfile( "tinky" ); - - createfile( "dipsy", 34567 ); - checkfile( "dipsy" ); - copyfile( "dipsy", "po" ); - checkfile( "po" ); - comparefiles( "dipsy", "po" ); - - listdir( ".", true, 5, NULL ); - listdir( "..", true, existingdirents+3, NULL ); - - // -------------------------------------------------------------- - - diag_printf("<INFO>: unlink tinky\n"); - err = unlink( "tinky" ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink dipsy\n"); - err = unlink( "dipsy" ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink po\n"); - err = unlink( "po" ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: cd ..\n"); - err = chdir( ".." ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( dirname ); - - diag_printf("<INFO>: rmdir noonoo\n"); - err = rmdir( "noonoo" ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - // -------------------------------------------------------------- - - diag_printf("<INFO>: mkdir x\n"); - err = mkdir( "x", 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - diag_printf("<INFO>: mkdir x/y\n"); - err = mkdir( "x/y", 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - diag_printf("<INFO>: mkdir x/y/z\n"); - err = mkdir( "x/y/z", 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - diag_printf("<INFO>: mkdir x/y/z/w\n"); - err = mkdir( "x/y/z/w", 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - NEW_FILENAME1( "x/y/z/w" ); - diag_printf("<INFO>: cd %s\n",filename1); - err = chdir( filename1 ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( filename1 ); - - NEW_FILENAME1( "x/y/z" ); - diag_printf("<INFO>: cd ..\n"); - err = chdir( ".." ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( filename1 ); - - NEW_FILENAME1( "x/y/z" ); - diag_printf("<INFO>: cd .\n"); - err = chdir( "." ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( filename1 ); - - NEW_FILENAME1( "x/y" ); - diag_printf("<INFO>: cd ../../y\n"); - err = chdir( "../../y" ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( filename1 ); - - diag_printf("<INFO>: cd ../..\n"); - err = chdir( "../.." ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( dirname ); - - diag_printf("<INFO>: rmdir x/y/z/w\n"); - err = rmdir( "x/y/z/w" ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - diag_printf("<INFO>: rmdir x/y/z\n"); - err = rmdir( "x/y/z" ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - diag_printf("<INFO>: rmdir x/y\n"); - err = rmdir( "x/y" ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - diag_printf("<INFO>: rmdir x\n"); - err = rmdir( "x" ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - // -------------------------------------------------------------- - - checkcwd( dirname ); - - diag_printf("<INFO>: unlink tinky\n"); - err = unlink( "tinky" ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink laalaa\n"); - err = unlink( "laalaa" ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - // -------------------------------------------------------------- - - diag_printf("<INFO>: cd %s\n", TEST_MOUNTPOINT TEST_DIRECTORY); - err = chdir( TEST_MOUNTPOINT TEST_DIRECTORY); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( TEST_MOUNTPOINT TEST_DIRECTORY ); - - listdir( ".", true, -1, NULL ); - -#ifdef TEST_MOUNTPOINT2 - if( mp2 ) - { - diag_printf("<INFO>: umount %s\n",TEST_MOUNTPOINT2); - err = umount( TEST_MOUNTPOINT2 ); - if( err < 0 ) SHOW_RESULT( umount, err ); - } -#endif - - // -------------------------------------------------------------- - -#if 0 - maxfile("file.max"); - - listdir( "/", true, -1, NULL ); - - diag_printf("<INFO>: unlink file.max\n"); - err = unlink( "file.max" ); - if( err < 0 ) SHOW_RESULT( unlink, err ); -#endif - - // -------------------------------------------------------------- - - diag_printf("<INFO>: cd /\n"); - err = chdir( "/" ); - if( err == 0 ) - { - checkcwd( "/" ); - - diag_printf("<INFO>: umount %s\n",TEST_MOUNTPOINT); - err = umount( TEST_MOUNTPOINT ); - if( err < 0 ) SHOW_RESULT( umount, err ); - } - - diag_printf("<INFO>: syncing\n"); - err = cyg_fs_setinfo(TEST_MOUNTPOINT, FS_INFO_SYNC, 0, 0); - if (err != 0) SHOW_RESULT(sync, err); - - CYG_TEST_PASS_FINISH("yaffs1"); -} - -// ------------------------------------------------------------------------- - -#include <cyg/kernel/kapi.h> - -static cyg_handle_t thread_handle; -static cyg_thread thread; -static char stack[CYGNUM_HAL_STACK_SIZE_TYPICAL+1024]; - -externC void -cyg_start( void ) -{ - cyg_thread_create(3, // Priority - just a number - fileio1_main, // entry - 0, // index - 0, // no name - &stack[0], // Stack - sizeof(stack), // Size - &thread_handle, // Handle - &thread // Thread data structure - ); - cyg_thread_resume(thread_handle); - - cyg_scheduler_start(); -} - -#else // CYGPKG_KERNEL - -#include <cyg/infra/testcase.h> - -externC void cyg_start(void) -{ - CYG_TEST_NA("Needs CYGPKG_KERNEL"); -} - -#endif - -// ------------------------------------------------------------------------- -// EOF yaffs1.c
deleted file mode 100644 --- a/packages/fs/yaffs/current/tests/yaffs2.c +++ /dev/null @@ -1,826 +0,0 @@ -//========================================================================== -// -// yaffs2.c -// -// Test fileio system -// -//========================================================================== -// ####ECOSGPLCOPYRIGHTBEGIN#### -// ------------------------------------------- -// This file is part of eCos, the Embedded Configurable Operating System. -// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004, 2006, 2007 Free Software Foundation, Inc. -// Copyright (C) 2004, 2006, 2007 eCosCentric Limited -// -// eCos is free software; you can redistribute it and/or modify it under -// the terms of the GNU General Public License as published by the Free -// Software Foundation; either version 2 or (at your option) any later -// version. -// -// eCos is distributed in the hope that it will be useful, but WITHOUT -// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -// for more details. -// -// You should have received a copy of the GNU General Public License -// along with eCos; if not, write to the Free Software Foundation, Inc., -// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -// -// As a special exception, if other files instantiate templates or use -// macros or inline functions from this file, or you compile this file -// and link it with other works to produce a work based on this file, -// this file does not by itself cause the resulting work to be covered by -// the GNU General Public License. However the source code for this file -// must still be made available in accordance with section (3) of the GNU -// General Public License v2. -// -// This exception does not invalidate any other reasons why a work based -// on this file might be covered by the GNU General Public License. -// ------------------------------------------- -// ####ECOSGPLCOPYRIGHTEND#### -//========================================================================== -//#####DESCRIPTIONBEGIN#### -// -// Author(s): nickg -// Contributors: nickg -// Date: 2000-05-25 -// Purpose: Test fileio system -// Description: This test uses the testfs to check out the initialization -// and basic operation of the fileio system -// -// -// -// -// -// -// -//####DESCRIPTIONEND#### -// -//========================================================================== - -#include <pkgconf/system.h> - -#ifdef CYGPKG_KERNEL - -#include <pkgconf/hal.h> -#include <pkgconf/kernel.h> -#include <pkgconf/io_fileio.h> -#include <pkgconf/io_fileio.h> - -#include CYGDAT_DEVS_DISK_CFG // testing config defines - -#include <cyg/kernel/ktypes.h> // base kernel types -#include <cyg/infra/cyg_trac.h> // tracing macros -#include <cyg/infra/cyg_ass.h> // assertion macros - -#include <unistd.h> -#include <fcntl.h> -#include <sys/stat.h> -#include <errno.h> -#include <string.h> -#include <dirent.h> - -#include <cyg/fileio/fileio.h> - -#include <cyg/infra/testcase.h> -#include <cyg/infra/diag.h> // HAL polled output - -#include <cyg/kernel/instrmnt.h> - -//========================================================================== -// Config options - -#define TEST_DEVICE CYGDAT_DEVS_DISK_TEST_DEVICE - -#define TEST_MOUNTPOINT CYGDAT_DEVS_DISK_TEST_MOUNTPOINT - -#define TEST_DIRECTORY CYGDAT_DEVS_DISK_TEST_DIRECTORY - -#define TEST_FSTYPE "yaffs" - -#ifdef CYGDAT_DEVS_DISK_TEST_MOUNTPOINT2 - -#define TEST_DEVICE2 CYGDAT_DEVS_DISK_TEST_DEVICE2 - -#define TEST_MOUNTPOINT2 CYGDAT_DEVS_DISK_TEST_MOUNTPOINT2 - -#define TEST_DIRECTORY2 CYGDAT_DEVS_DISK_TEST_DIRECTORY2 - -#define TEST_FSTYPE2 "yaffs" - -#endif - -//========================================================================== - -#if 0 -# define X(_args_) \ -{ \ - cyg_drv_isr_lock(); \ - diag_printf("%08x: ",cyg_thread_self()); \ - diag_printf _args_; \ - cyg_drv_isr_unlock(); \ - \ -} -#else -# define X(_args_) CYG_EMPTY_STATEMENT -#endif - -#ifdef JNGPKG_USB_STACK -extern int usb_stack_init(void); -#endif - -//========================================================================== - -#define SHOW_RESULT( _fn, _res ) \ -diag_printf("<FAIL>: " #_fn "() returned %ld %s\n", (long)_res, _res<0?strerror(errno):""); - -//========================================================================== - -#define IOSIZE 100 - -#define NTHREAD 6 - - -//========================================================================== - -#ifndef CYGPKG_LIBC_STRING - -char *strcat( char *s1, const char *s2 ) -{ - char *s = s1; - while( *s1 ) s1++; - while( (*s1++ = *s2++) != 0); - return s; -} - -#endif - -__externC int -rename( const char * /* oldpath */, const char * /* newpath */ ) __THROW; - -//========================================================================== - - -static cyg_mutex_t db_lock; - -#define db_printf( args... ) \ -{ \ - cyg_mutex_lock( &db_lock ); \ - diag_printf("%d: ",id); \ - diag_printf( args ); \ - cyg_mutex_unlock( &db_lock ); \ -} - -//========================================================================== - -static void listdir( char *name, int statp, int numexpected, int *numgot, int id ) -{ - int err; - DIR *dirp; - int num=0; - - db_printf("<INFO>: reading directory %s\n",name); - - dirp = opendir( name ); - if( dirp == NULL ) SHOW_RESULT( opendir, -1 ); - - for(;;) - { - struct dirent entry_data; - struct dirent *entry; - - err = readdir_r( dirp, &entry_data, &entry ); - - if( err < 0 || entry == NULL ) - break; - num++; - - cyg_mutex_lock( &db_lock ); - diag_printf("%d: <INFO>: entry %14s",id, entry->d_name); - - if( statp ) - { - char fullname[PATH_MAX]; - struct stat sbuf; - - if( name[0] ) - { - strcpy(fullname, name ); - if( !(name[0] == '/' && name[1] == 0 ) ) - strcat(fullname, "/" ); - } - else fullname[0] = 0; - - strcat(fullname, entry->d_name ); - - err = stat( fullname, &sbuf ); - if( err < 0 ) - { - if( errno == ENOSYS ) - diag_printf(" <no status available>"); - else - { - SHOW_RESULT( stat, err ); - cyg_scheduler_lock(); - CYG_INSTRUMENT_USER(0xff,err,errno); - for(;;); - } - } - else - { - diag_printf(" [mode %08x ino %08x nlink %d size %ld]", - sbuf.st_mode,sbuf.st_ino,sbuf.st_nlink,sbuf.st_size); - } - } - - diag_printf("\n"); - cyg_mutex_unlock( &db_lock ); - } - - err = closedir( dirp ); - if( err < 0 ) SHOW_RESULT( stat, err ); - if (numexpected >= 0 && num != numexpected) - CYG_TEST_FAIL("Wrong number of dir entries\n"); - if ( numgot != NULL ) - *numgot = num; -} - -//========================================================================== - -static void createfile( char *name, size_t size, int id ) -{ - char buf[IOSIZE]; - int fd; - ssize_t wrote; - int i; - int err; - - db_printf("<INFO>: create file %s size %ld\n",name, (long)size); - - err = access( name, F_OK ); - if( err < 0 && errno == EEXIST ) - { - err = unlink( name ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - } - else - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - for( i = 0; i < IOSIZE; i++ ) buf[i] = i%256; - - fd = open( name, O_WRONLY|O_CREAT ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - while( size > 0 ) - { - ssize_t len = size; - if ( len > IOSIZE ) len = IOSIZE; - - wrote = write( fd, buf, len ); - if( wrote != len ) SHOW_RESULT( write, wrote ); - - size -= wrote; - - cyg_thread_yield(); - } - - err = close( fd ); - if( err < 0 ) SHOW_RESULT( close, err ); -} - -//========================================================================== - -#if 0 -static void maxfile( char *name, int id ) -{ - char buf[IOSIZE]; - int fd; - ssize_t wrote; - int i; - int err; - size_t size = 0; - size_t prevsize = 0; - - db_printf("<INFO>: create maximal file %s\n",name); - db_printf("<INFO>: This may take a few minutes\n"); - - err = access( name, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - for( i = 0; i < IOSIZE; i++ ) buf[i] = i%256; - - fd = open( name, O_WRONLY|O_CREAT ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - do - { - wrote = write( fd, buf, IOSIZE ); - //if( wrote < 0 ) SHOW_RESULT( write, wrote ); - - if( wrote >= 0 ) - size += wrote; - - if( (size-prevsize) > 100000 ) - { - db_printf("<INFO>: size = %ld \n", size); - prevsize = size; - } - - } while( wrote == IOSIZE ); - - db_printf("<INFO>: file size == %ld\n",size); - - err = close( fd ); - if( err < 0 ) SHOW_RESULT( close, err ); -} -#endif - -//========================================================================== - -static void checkfile( char *name, int id ) -{ - char buf[IOSIZE]; - int fd; - ssize_t done; - int i; - int err; - off_t pos = 0; - - db_printf("<INFO>: check file %s\n",name); - - err = access( name, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - fd = open( name, O_RDONLY ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - for(;;) - { - done = read( fd, buf, IOSIZE ); - if( done < 0 ) SHOW_RESULT( read, done ); - - if( done == 0 ) break; - - for( i = 0; i < done; i++ ) - if( buf[i] != i%256 ) - { -// db_printf("buf[%d+%d](%02x) != %02x\n",pos,i,buf[i],i%256); -// CYG_TEST_FAIL("Data read not equal to data written\n"); - X(("buf[%ld+%d](%02x) != %02x\n",pos,i,buf[i],i%256)); - cyg_scheduler_lock(); - CYG_INSTRUMENT_USER(0xf0,err,errno); - for(;;); - } - - pos += done; - - cyg_thread_yield(); - } - - err = close( fd ); - if( err < 0 ) SHOW_RESULT( close, err ); -} - -//========================================================================== - -static void copyfile( char *name2, char *name1, int id ) -{ - - int err; - char buf[IOSIZE]; - int fd1, fd2; - ssize_t done, wrote; - - db_printf("<INFO>: copy file %s -> %s\n",name2,name1); - - err = access( name1, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - err = access( name2, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - fd1 = open( name1, O_WRONLY|O_CREAT ); - if( fd1 < 0 ) SHOW_RESULT( open, fd1 ); - - fd2 = open( name2, O_RDONLY ); - if( fd2 < 0 ) SHOW_RESULT( open, fd2 ); - - for(;;) - { - done = read( fd2, buf, IOSIZE ); - if( done < 0 ) SHOW_RESULT( read, done ); - - if( done == 0 ) break; - - wrote = write( fd1, buf, done ); - if( wrote != done ) SHOW_RESULT( write, wrote ); - - if( wrote != done ) break; - - cyg_thread_yield(); - } - - err = close( fd1 ); - if( err < 0 ) SHOW_RESULT( close, err ); - - err = close( fd2 ); - if( err < 0 ) SHOW_RESULT( close, err ); - -} - -//========================================================================== - -static void comparefiles( char *name2, char *name1, int id ) -{ - int err; - char buf1[IOSIZE]; - char buf2[IOSIZE]; - int fd1, fd2; - ssize_t done1, done2; - int i; - - db_printf("<INFO>: compare files %s == %s\n",name2,name1); - - err = access( name1, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - err = access( name1, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - fd1 = open( name1, O_RDONLY ); - if( fd1 < 0 ) SHOW_RESULT( open, fd1 ); - - fd2 = open( name2, O_RDONLY ); - if( fd2 < 0 ) SHOW_RESULT( open, fd2 ); - - for(;;) - { - done1 = read( fd1, buf1, IOSIZE ); - if( done1 < 0 ) SHOW_RESULT( read, done1 ); - - done2 = read( fd2, buf2, IOSIZE ); - if( done2 < 0 ) SHOW_RESULT( read, done2 ); - - if( done1 != done2 ) - db_printf("Files different sizes\n"); - - if( done1 == 0 ) break; - - for( i = 0; i < done1; i++ ) - if( buf1[i] != buf2[i] ) - { -// db_printf("buf1[%d](%02x) != buf1[%d](%02x)\n",i,buf1[i],i,buf2[i]); -// CYG_TEST_FAIL("Data in files not equal\n"); - X(("%s[%d](%02x) != %s[%d](%02x)\n",name1,i,buf1[i],name2,i,buf2[i])); - cyg_scheduler_lock(); - CYG_INSTRUMENT_USER(0xf1,err,errno); - for(;;); - } - - cyg_thread_yield(); - } - - err = close( fd1 ); - if( err < 0 ) SHOW_RESULT( close, err ); - - err = close( fd2 ); - if( err < 0 ) SHOW_RESULT( close, err ); - -} - -//========================================================================== - -void checkcwd( const char *cwd, int id ) -{ - static char cwdbuf[PATH_MAX]; - char *ret; - - ret = getcwd( cwdbuf, sizeof(cwdbuf)); - if( ret == NULL ) SHOW_RESULT( getcwd, ret ); - - if( strcmp( cwdbuf, cwd ) != 0 ) - { - db_printf( "cwdbuf %s cwd %s\n",cwdbuf, cwd ); - CYG_TEST_FAIL( "Current directory mismatch"); - } -} - -//========================================================================== -// main - -static cyg_sem_t sem; - -void fileio2_main( CYG_ADDRESS id ) -{ - int err; - int existingdirents=-1; - - char dirname[64]; - char filename1[64]; - char filename2[64]; - -#define NEW_FILENAME( fn, f ) \ -{ \ - fn[0]=0; \ - strcat(fn, dirname); \ - strcat(fn, "/"); \ - strcat(fn,f); \ -} - -#define NEW_FILENAME1( f ) NEW_FILENAME( filename1, f ) -#define NEW_FILENAME2( f ) NEW_FILENAME( filename2, f ) - - // -------------------------------------------------------------- - - if( id == 0 ) - { - int i; - -#ifdef JNGPKG_USB_STACK - err = usb_stack_init(); - cyg_thread_delay( 1000 ); -#endif - - CYG_TEST_INIT(); - - err = mount( TEST_DEVICE, TEST_MOUNTPOINT, TEST_FSTYPE ); - if( err < 0 ) { - SHOW_RESULT( mount, err ); - CYG_TEST_FAIL_FINISH("yaffs2"); - } - - err = access( TEST_MOUNTPOINT TEST_DIRECTORY, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - if( err < 0 && errno == EACCES ) - { - db_printf("<INFO>: create %s\n", - TEST_MOUNTPOINT TEST_DIRECTORY); - err = mkdir( TEST_MOUNTPOINT TEST_DIRECTORY, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - } - - err = chdir( TEST_MOUNTPOINT TEST_DIRECTORY ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - checkcwd( TEST_MOUNTPOINT TEST_DIRECTORY, id ); - - for( i = 0; i < NTHREAD-1; i++ ) - cyg_semaphore_post( &sem ); - } - else - { - cyg_semaphore_wait( &sem ); - } - - // -------------------------------------------------------------- - - dirname[0] = 0; - strcat(dirname, TEST_MOUNTPOINT ); - strcat(dirname, TEST_DIRECTORY ); - strcat(dirname, "/dirX"); - dirname[sizeof(TEST_MOUNTPOINT) + - sizeof(TEST_DIRECTORY) - 2 + - 4] = '0' + id; -// dirname[5] = 0; - - - db_printf("<INFO>: create %s\n",dirname); - err = mkdir( dirname, 0 ); - if( err < 0 && errno != EEXIST ) SHOW_RESULT( mkdir, err ); - - listdir( dirname, true, -1, &existingdirents, id ); - - db_printf("<INFO>: existingdirents %d\n",existingdirents); - - // -------------------------------------------------------------- - - NEW_FILENAME1( "foo" ); - createfile( filename1, 20257, id ); - checkfile( filename1, id ); - - NEW_FILENAME1( "foo" ); - NEW_FILENAME2( "fee" ); - - copyfile( filename1, filename2, id); - checkfile( filename2, id ); - comparefiles( filename1, filename2, id ); - - NEW_FILENAME1( "bar" ); - db_printf("<INFO>: mkdir bar\n"); - err = mkdir( filename1, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - listdir( dirname , true, existingdirents+3, NULL, id ); - - NEW_FILENAME1( "bar/fum" ); - copyfile( filename2, filename1, id ); - checkfile( filename1, id ); - comparefiles( filename2, filename1, id ); - - NEW_FILENAME1( "foo" ); - NEW_FILENAME2( "bar/bundy" ); - db_printf("<INFO>: rename %s -> %s\n",filename1,filename2); - err = rename( filename1, filename2 ); - if( err < 0 ) SHOW_RESULT( rename, err ); - - NEW_FILENAME1( "bar" ); - - listdir( dirname, true, existingdirents+2, NULL, id ); - listdir( filename1 , true, 4, NULL, id ); - - NEW_FILENAME1( "fee" ); - checkfile( filename2, id ); - comparefiles( filename1, filename2, id ); - -// db_printf("spinning\n"); for(;;) cyg_thread_delay(10); - - - // -------------------------------------------------------------- - - db_printf("<INFO>: unlink %s\n",filename1); - err = unlink( filename1 ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - NEW_FILENAME1( "bar/fum" ); - db_printf("<INFO>: unlink %s\n",filename1); - err = unlink( filename1 ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - NEW_FILENAME1( "bar/bundy" ); - db_printf("<INFO>: unlink %s\n",filename1); - err = unlink( filename1 ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - NEW_FILENAME1( "bar" ); - db_printf("<INFO>: rmdir %s\n",filename1); - err = rmdir( filename1 ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - -// listdir( dirname, false, existingdirents, NULL, id ); - - listdir( dirname, true, existingdirents, NULL, id ); - - // -------------------------------------------------------------- - - - listdir( dirname , true, -1, &existingdirents, id); - - NEW_FILENAME1( "tinky" ); - NEW_FILENAME2( "laalaa" ); - createfile( filename1, 4567, id ); - copyfile( filename1, filename2, id ); - checkfile( filename1, id); - checkfile( filename2, id); - comparefiles( filename1, filename2, id ); - - NEW_FILENAME1( "noonoo" ); - db_printf("<INFO>: mkdir %s\n",filename1); - err = mkdir( filename1, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - listdir( dirname , true, existingdirents+3, NULL, id); - - NEW_FILENAME1( "noonoo/tinky" ); - createfile( filename1, 6789, id ); - checkfile( filename1, id ); - - NEW_FILENAME1( "noonoo/dipsy" ); - NEW_FILENAME2( "noonoo/po" ); - createfile( filename1, 34567, id ); - checkfile( filename1, id ); - copyfile( filename1, filename2, id ); - checkfile( filename2, id ); - comparefiles( filename1, filename2, id ); - - NEW_FILENAME1( "noonoo" ); - listdir( filename1, true, 5, NULL, id ); - listdir( dirname, true, existingdirents+3, NULL, id ); - - // -------------------------------------------------------------- - - NEW_FILENAME1( "noonoo/tinky" ); - db_printf("<INFO>: unlink %s\n",filename1); - err = unlink( filename1 ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - NEW_FILENAME1( "noonoo/dipsy" ); - db_printf("<INFO>: unlink %s\n",filename1); - err = unlink( filename1 ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - NEW_FILENAME1( "noonoo/po" ); - db_printf("<INFO>: unlink %s\n",filename1); - err = unlink( filename1 ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - NEW_FILENAME1( "noonoo" ); - db_printf("<INFO>: rmdir %s\n",filename1); - err = rmdir( filename1 ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - listdir( dirname, true, existingdirents+2, NULL, id ); - - // -------------------------------------------------------------- - - - NEW_FILENAME1( "tinky" ); - db_printf("<INFO>: unlink %s\n",filename1); - err = unlink( filename1 ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - NEW_FILENAME1( "laalaa" ); - db_printf("<INFO>: unlink %s\n",filename1); - err = unlink( filename1 ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - listdir( dirname, true, -1, NULL, id ); - -#if 0 - NEW_FILENAME1( "file.max" ); - maxfile( filename1, id ); - - listdir( dirname, true, -1, NULL, id ); - - db_printf("<INFO>: unlink %s\n",filename1); - err = unlink( filename1 ); - if( err < 0 ) SHOW_RESULT( unlink, err ); -#endif - - db_printf("<INFO>: rmdir %s\n",dirname); - err = rmdir( dirname ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - db_printf("<INFO>: syncing\n"); - err = cyg_fs_setinfo(TEST_MOUNTPOINT, FS_INFO_SYNC, 0, 0); - if (err != 0) SHOW_RESULT(sync, err); - - if( id == 0 ) - { - int i; - db_printf("<INFO>: waiting for other threads to finish\n"); - for( i = 0; i < NTHREAD-1; i++ ) - cyg_semaphore_wait( &sem ); - - CYG_TEST_PASS_FINISH("yaffs2"); - } - else - { - db_printf("<INFO>: thread finished\n"); - cyg_semaphore_post( &sem ); - } - - cyg_thread_exit(); -} - -// ------------------------------------------------------------------------- - -#include <cyg/kernel/kapi.h> - -#define STACK_SIZE (CYGNUM_HAL_STACK_SIZE_TYPICAL*2) - -static char stack[NTHREAD][STACK_SIZE]; -static cyg_handle_t thread_handle[NTHREAD]; -static cyg_thread thread[NTHREAD]; - -externC void -cyg_start( void ) -{ - int i; - - CYG_INSTRUMENT_USER(0x01,0,0); - - cyg_mutex_init( &db_lock ); - - cyg_semaphore_init( &sem, 0 ); - - for( i = 0; i < NTHREAD; i++ ) - { - cyg_thread_create(3, // Priority - just a number - fileio2_main, // entry - i, // index - 0, // no name - &stack[i][0], // Stack - STACK_SIZE, // Size - &thread_handle[i], // Handle - &thread[i] // Thread data structure - ); - cyg_thread_resume(thread_handle[i]); - } - - cyg_scheduler_start(); -} - -#else // CYGPKG_KERNEL - -#include <cyg/infra/testcase.h> - -externC void cyg_start(void) -{ - CYG_TEST_NA("Needs CYGPKG_KERNEL"); -} - -#endif - - -// ------------------------------------------------------------------------- -// EOF yaffs2.c
deleted file mode 100644 --- a/packages/fs/yaffs/current/tests/yaffs4.c +++ /dev/null @@ -1,950 +0,0 @@ -//========================================================================== -// -// yaffs4.c -// -// Test fileio system -// -//========================================================================== -// ####ECOSGPLCOPYRIGHTBEGIN#### -// ------------------------------------------- -// This file is part of eCos, the Embedded Configurable Operating System. -// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. -// Copyright (C) 2004, 2005, 2006, 2007 eCosCentric Limited -// -// eCos is free software; you can redistribute it and/or modify it under -// the terms of the GNU General Public License as published by the Free -// Software Foundation; either version 2 or (at your option) any later -// version. -// -// eCos is distributed in the hope that it will be useful, but WITHOUT -// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -// for more details. -// -// You should have received a copy of the GNU General Public License -// along with eCos; if not, write to the Free Software Foundation, Inc., -// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -// -// As a special exception, if other files instantiate templates or use -// macros or inline functions from this file, or you compile this file -// and link it with other works to produce a work based on this file, -// this file does not by itself cause the resulting work to be covered by -// the GNU General Public License. However the source code for this file -// must still be made available in accordance with section (3) of the GNU -// General Public License v2. -// -// This exception does not invalidate any other reasons why a work based -// on this file might be covered by the GNU General Public License. -// ------------------------------------------- -// ####ECOSGPLCOPYRIGHTEND#### -//========================================================================== -//#####DESCRIPTIONBEGIN#### -// -// Author(s): nickg -// Contributors: nickg -// Date: 2005-07-25 -// Purpose: Test fileio system -// Description: This test uses the testfs to check out the initialization -// and basic operation of the fileio system. -// This is essentially a copy of yaffs1 but using long -// file names. -// -// -// -// -// -// -//####DESCRIPTIONEND#### -// -//========================================================================== - -#include <pkgconf/system.h> - -#ifdef CYGPKG_KERNEL - -#include <pkgconf/hal.h> -#include <pkgconf/kernel.h> -#include <pkgconf/io_fileio.h> - -#include CYGDAT_DEVS_DISK_CFG // testing config defines - -#include <cyg/kernel/ktypes.h> // base kernel types -#include <cyg/infra/cyg_trac.h> // tracing macros -#include <cyg/infra/cyg_ass.h> // assertion macros - -#include <unistd.h> -#include <fcntl.h> -#include <sys/stat.h> -#include <errno.h> -#include <string.h> -#include <dirent.h> - -#include <cyg/fileio/fileio.h> - -#include <cyg/infra/testcase.h> -#include <cyg/infra/diag.h> // HAL polled output - -//========================================================================== -// Config options - -#define TEST_DEVICE CYGDAT_DEVS_DISK_TEST_DEVICE - -#define TEST_MOUNTPOINT CYGDAT_DEVS_DISK_TEST_MOUNTPOINT - -#define TEST_DIRECTORY CYGDAT_DEVS_DISK_TEST_DIRECTORY - -#define TEST_FSTYPE "yaffs" - -#ifdef CYGDAT_DEVS_DISK_TEST_MOUNTPOINT2 - -#define TEST_DEVICE2 CYGDAT_DEVS_DISK_TEST_DEVICE2 - -#define TEST_MOUNTPOINT2 CYGDAT_DEVS_DISK_TEST_MOUNTPOINT2 - -#define TEST_DIRECTORY2 CYGDAT_DEVS_DISK_TEST_DIRECTORY2 - -#define TEST_FSTYPE2 "yaffs" - -#endif - -//========================================================================== - -#define SHOW_RESULT( _fn, _res ) \ -{ \ - diag_printf("<FAIL>: " #_fn "() returned %ld %s\n", (long)_res, _res<0?strerror(errno):""); \ -} - -//========================================================================== - -#define IOSIZE 100 - -#define CLEANUP - -#define LONGNAME1 "long_file_name_that_should_take_up_more_than_one_directory_entry_1" -#define LONGNAME2 "long_file_name_that_should_take_up_more_than_one_directory_entry_2" - -// 123456789012345678901234567890 -#define FOO "foo_longer_file_x.filename" -//#define FEE "fee_.filename" -//#define BAR "bar_long_directory_name.dirname" -#define FEE "a234567890123" -#define BAR "a2345678901234" -#define BUNDY "bundy_long_file_name_ccccccccccccccccccccccccccccccc.filename" -#define FUM "bundy_long_file_name_fum.filename" -#define DOO "doo_aaaaaaaaaabbbbbbbbbbbccccccccccccc" -#define FIE "fie.rrrrrrrrrrrrllllllllllllvvvvvvvvvvvvv" -#define FOE "foe_xxxxxxxxxxllllll.xxxxxxeeeeeeeeee" - -#define TINKY "tinky_long_file_name.filename" -#define LAALAA "laalaa_long_file_name.filename" -#define NOONOO "noonoo_long_directory_name.dirname" -#define DIPSY "dipsy_long_file_name.filename" -#define PO "po_long_file_name.filename" - -#define XXXX "xxxx_long_directory_name.dirname" -#define YYYY "yyyy_long_directory_name.dirname" -#define ZZZZ "zzzz_long_directory_name.dirname" -#define WWWW "wwww_long_directory_name.dirname" - - -//========================================================================== - -#ifndef CYGPKG_LIBC_STRING - -char *strcat( char *s1, const char *s2 ) -{ - char *s = s1; - while( *s1 ) s1++; - while( (*s1++ = *s2++) != 0); - return s; -} - -#endif - -__externC int -rename( const char * /* oldpath */, const char * /* newpath */ ) __THROW; - -//========================================================================== - -static void listdir( char *name, int statp, int numexpected, int *numgot ) -{ - int err; - DIR *dirp; - int num=0; - - diag_printf("<INFO>: reading directory %s\n",name); - -// diag_printf("<INFO>: opendir(%s)\n",name); - dirp = opendir( name ); - if( dirp == NULL ) SHOW_RESULT( opendir, -1 ); - - for(;;) - { - struct dirent *entry = readdir( dirp ); - - if( entry == NULL ) - break; - num++; - diag_printf("<INFO>: entry"); - if( statp ) - { - char fullname[PATH_MAX]; - struct stat sbuf; - - if( name[0] ) - { - strcpy(fullname, name ); - if( !(name[0] == '/' && name[1] == 0 ) ) - strcat(fullname, "/" ); - } - else fullname[0] = 0; - - strcat(fullname, entry->d_name ); - - err = stat( fullname, &sbuf ); - if( err < 0 ) - { - if( errno == ENOSYS ) - diag_printf(" <no status available>"); - else SHOW_RESULT( stat, err ); - } - else - { - diag_printf(" [mode %08x ino %08x nlink %d size %6ld]", - sbuf.st_mode,sbuf.st_ino,sbuf.st_nlink,sbuf.st_size); - } - } - - diag_printf(" %s\n",entry->d_name); - } - -// diag_printf("<INFO>: closedir(%s)\n",name); - err = closedir( dirp ); - if( err < 0 ) SHOW_RESULT( stat, err ); - if (numexpected >= 0 && num != numexpected) - CYG_TEST_FAIL("Wrong number of dir entries"); - if ( numgot != NULL ) - *numgot = num; -} - -//========================================================================== - -static void createfile( char *name, size_t size ) -{ - char buf[IOSIZE]; - int fd; - ssize_t wrote; - int i; - int err; - - diag_printf("<INFO>: create file %s size %ld\n",name, (long)size); - - err = access( name, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - for( i = 0; i < IOSIZE; i++ ) buf[i] = i%256; - - fd = open( name, O_WRONLY|O_CREAT ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - while( size > 0 ) - { - ssize_t len = size; - if ( len > IOSIZE ) len = IOSIZE; - - wrote = write( fd, buf, len ); - if( wrote != len ) SHOW_RESULT( write, wrote ); - - size -= wrote; - } - - err = close( fd ); - if( err < 0 ) SHOW_RESULT( close, err ); -} - -//========================================================================== - -#if 0 -static void maxfile( char *name ) -{ - char buf[IOSIZE]; - int fd; - ssize_t wrote; - int i; - int err; - size_t size = 0; - size_t prevsize = 0; - - diag_printf("<INFO>: create maximal file %s\n",name); - diag_printf("<INFO>: This may take a few minutes\n"); - - err = access( name, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - for( i = 0; i < IOSIZE; i++ ) buf[i] = i%256; - - fd = open( name, O_WRONLY|O_CREAT ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - do - { - wrote = write( fd, buf, IOSIZE ); - //if( wrote < 0 ) SHOW_RESULT( write, wrote ); - - if( wrote >= 0 ) - size += wrote; - - if( (size-prevsize) > 100000 ) - { - diag_printf("<INFO>: size = %ld \n", size); - prevsize = size; - } - - } while( wrote == IOSIZE ); - - diag_printf("<INFO>: file size == %ld\n",size); - - err = close( fd ); - if( err < 0 ) SHOW_RESULT( close, err ); -} -#endif - -//========================================================================== - -static void checkfile( char *name ) -{ - char buf[IOSIZE]; - int fd; - ssize_t done; - int i; - int err; - off_t pos = 0; - - diag_printf("<INFO>: check file %s\n",name); - - err = access( name, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - fd = open( name, O_RDONLY ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - for(;;) - { - done = read( fd, buf, IOSIZE ); - if( done < 0 ) SHOW_RESULT( read, done ); - - if( done == 0 ) break; - - for( i = 0; i < done; i++ ) - if( buf[i] != i%256 ) - { - diag_printf("buf[%ld+%d](%02x) != %02x\n",pos,i,buf[i],i%256); - CYG_TEST_FAIL("Data read not equal to data written\n"); - for(;;); - } - - pos += done; - } - - err = close( fd ); - if( err < 0 ) SHOW_RESULT( close, err ); -} - -//========================================================================== - -static void copyfile( char *name2, char *name1 ) -{ - - int err; - char buf[IOSIZE]; - int fd1, fd2; - ssize_t done, wrote; - - diag_printf("<INFO>: copy file %s -> %s\n",name2,name1); - - err = access( name1, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - err = access( name2, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - fd1 = open( name1, O_WRONLY|O_CREAT ); - if( fd1 < 0 ) SHOW_RESULT( open, fd1 ); - - fd2 = open( name2, O_RDONLY ); - if( fd2 < 0 ) SHOW_RESULT( open, fd2 ); - - for(;;) - { - done = read( fd2, buf, IOSIZE ); - if( done < 0 ) SHOW_RESULT( read, done ); - - if( done == 0 ) break; - - wrote = write( fd1, buf, done ); - if( wrote != done ) SHOW_RESULT( write, wrote ); - - if( wrote != done ) break; - } - - err = close( fd1 ); - if( err < 0 ) SHOW_RESULT( close, err ); - - err = close( fd2 ); - if( err < 0 ) SHOW_RESULT( close, err ); - -} - -//========================================================================== - -static void comparefiles( char *name2, char *name1 ) -{ - int err; - char buf1[IOSIZE]; - char buf2[IOSIZE]; - int fd1, fd2; - ssize_t done1, done2; - int i; - - diag_printf("<INFO>: compare files %s == %s\n",name2,name1); - - err = access( name1, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - err = access( name1, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - fd1 = open( name1, O_RDONLY ); - if( fd1 < 0 ) SHOW_RESULT( open, fd1 ); - - fd2 = open( name2, O_RDONLY ); - if( fd2 < 0 ) SHOW_RESULT( open, fd2 ); - - for(;;) - { - done1 = read( fd1, buf1, IOSIZE ); - if( done1 < 0 ) SHOW_RESULT( read, done1 ); - - done2 = read( fd2, buf2, IOSIZE ); - if( done2 < 0 ) SHOW_RESULT( read, done2 ); - - if( done1 != done2 ) - diag_printf("Files different sizes\n"); - - if( done1 == 0 ) break; - - for( i = 0; i < done1; i++ ) - if( buf1[i] != buf2[i] ) - { - diag_printf("buf1[%d](%02x) != buf1[%d](%02x)\n",i,buf1[i],i,buf2[i]); - CYG_TEST_FAIL("Data in files not equal\n"); - } - } - - err = close( fd1 ); - if( err < 0 ) SHOW_RESULT( close, err ); - - err = close( fd2 ); - if( err < 0 ) SHOW_RESULT( close, err ); - -} - -//========================================================================== - -void checkcwd( const char *cwd ) -{ - static char cwdbuf[PATH_MAX]; - char *ret; - - ret = getcwd( cwdbuf, sizeof(cwdbuf)); - if( ret == NULL ) SHOW_RESULT( getcwd, ret ); - - if( strcmp( cwdbuf, cwd ) != 0 ) - { - diag_printf( "cwdbuf %s cwd %s\n",cwdbuf, cwd ); - CYG_TEST_FAIL( "Current directory mismatch"); - } -} - -//========================================================================== -// main - -void fileio4_main( CYG_ADDRESS id ) -{ - int err; - int existingdirents=-1; - cyg_bool mp2 = false; - int fd; - - char dirname[256]; - char filename1[256]; - char filename2[256]; - -#define NEW_FILENAME( fn, f ) \ -{ \ - fn[0]=0; \ - strcat(fn, dirname); \ - strcat(fn, "/"); \ - strcat(fn,f); \ -} - -#define NEW_FILENAME1( f ) NEW_FILENAME( filename1, f ) -#define NEW_FILENAME2( f ) NEW_FILENAME( filename2, f ) - - CYG_TEST_INIT(); - - // -------------------------------------------------------------- - - err = mount( TEST_DEVICE, TEST_MOUNTPOINT, TEST_FSTYPE ); - if( err < 0 ) { - SHOW_RESULT( mount, err ); - CYG_TEST_FAIL_FINISH("yaffs4"); - } - - err = access( TEST_MOUNTPOINT TEST_DIRECTORY, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - if( err < 0 && errno == EACCES ) - { - diag_printf("<INFO>: create %s\n", - TEST_MOUNTPOINT TEST_DIRECTORY); - err = mkdir( TEST_MOUNTPOINT TEST_DIRECTORY, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - } - - err = chdir( TEST_MOUNTPOINT TEST_DIRECTORY ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - checkcwd( TEST_MOUNTPOINT TEST_DIRECTORY ); - - listdir( TEST_MOUNTPOINT TEST_DIRECTORY, true, -1, &existingdirents ); - - // -------------------------------------------------------------- - - dirname[0] = 0; - strcat(dirname, TEST_MOUNTPOINT ); - strcat(dirname, TEST_DIRECTORY ); - - // -------------------------------------------------------------- - - createfile( FOO, 20257 ); - checkfile( FOO ); - copyfile( FOO, FEE); - checkfile( FEE ); - comparefiles( FOO, FEE ); - diag_printf("<INFO>: mkdir " BAR "\n"); - err = mkdir( BAR, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - listdir( dirname , true, existingdirents+3, NULL ); - - copyfile( FEE, BAR "/" FUM ); - checkfile( BAR "/" FUM ); - comparefiles( FEE, BAR "/" FUM ); - - diag_printf("<INFO>: cd " BAR "\n"); - err = chdir( BAR ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - NEW_FILENAME1( BAR ); - checkcwd( filename1 ); - - diag_printf("<INFO>: rename ../" FOO " " BUNDY "\n"); - err = rename( "../" FOO, BUNDY ); - if( err < 0 ) SHOW_RESULT( rename, err ); - - listdir( dirname, true, existingdirents+2, NULL ); - listdir( "." , true, 4, NULL ); - - checkfile( "../" BAR "/" BUNDY ); - comparefiles("../" FEE, BUNDY ); - - // -------------------------------------------------------------- - // Check for some common error cases - - // First make some directories - diag_printf("<INFO>: mkdir " DOO "\n"); - err = mkdir( DOO, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - diag_printf("<INFO>: mkdir " FIE" \n"); - err = mkdir( FIE, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - diag_printf("<INFO>: mkdir " FIE "/" FOE "\n"); - err = mkdir( FIE "/" FOE, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - - diag_printf("<INFO>: rename " FUM " " DOO " -- should fail\n"); - err = rename( FUM, DOO ); - if( err < 0 && errno != EISDIR ) SHOW_RESULT( rename, err ); - - diag_printf("<INFO>: rename " DOO " " FUM " -- should fail\n"); - err = rename( DOO, FUM ); - if( err < 0 && errno != ENOTDIR ) SHOW_RESULT( rename, err ); - - diag_printf("<INFO>: rename " DOO " " FIE " -- should fail\n"); - err = rename( DOO, FIE ); - if( err < 0 && errno != EIO ) SHOW_RESULT( rename, err ); - - NEW_FILENAME1( XXXX "/" YYYY ) - diag_printf("<INFO>: rename " FUM " %s -- should fail\n",filename1); - err = rename( FUM, filename1 ); - if( err < 0 && errno != ENOENT ) SHOW_RESULT( rename, err ); - - diag_printf("<INFO>: rename " FUM " " FUM " -- should fail\n"); - err = rename( FUM, FUM ); - if( err < 0 && errno != ENOENT ) SHOW_RESULT( rename, err ); - - diag_printf("<INFO>: unlink " FEE " -- should fail\n"); - err = unlink( FEE ); - if( err < 0 && errno != ENOENT ) SHOW_RESULT( unlink, err ); - - NEW_FILENAME1( BAR ); - diag_printf("<INFO>: rmdir %s -- should fail\n",filename1); - err = rmdir( filename1 ); - if( err < 0 && errno != ENOTEMPTY ) SHOW_RESULT( rmdir, err ); - - diag_printf("<INFO>: unlink %s -- should fail\n",filename1); - err = unlink( filename1 ); - if( err < 0 && errno != EISDIR ) SHOW_RESULT( unlink, err ); - - NEW_FILENAME1( BAR "/" FUM ); - diag_printf("<INFO>: rmdir %s -- should fail\n",filename1); - err = rmdir( filename1 ); - if( err < 0 && errno != ENOTDIR ) SHOW_RESULT( rmdir, err ); - - diag_printf("<INFO>: mkdir %s -- should fail\n",filename1); - err = mkdir( filename1, 0 ); - if( err < 0 && errno != EEXIST ) SHOW_RESULT( mkdir, err ); - - diag_printf("<INFO>: open " BUNDY " exclusive -- should fail\n"); - fd = open( BUNDY, O_WRONLY|O_CREAT|O_EXCL ); - if( fd < 0 && errno != EEXIST ) SHOW_RESULT( open, fd ); - - diag_printf("<INFO>: open %s -- should fail\n",dirname); - fd = open( dirname, O_WRONLY ); - if( fd < 0 && errno != EISDIR ) SHOW_RESULT( open, fd ); - - - listdir( dirname, true, existingdirents+2, NULL ); - listdir( "." , true, 6, NULL ); - - // -------------------------------------------------------------- - -#ifdef CLEANUP - - diag_printf("<INFO>: rename " FIE " " DOO "\n"); - err = rename( FIE, DOO ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: rmdir " DOO "/" FOE "\n"); - err = rmdir(DOO "/" FOE); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: rmdir " DOO "\n"); - err = rmdir(DOO); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink ../" FEE "\n"); - err = unlink( "../" FEE ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink " FUM "\n"); - err = unlink( FUM ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink ../" BAR "/" BUNDY "\n"); - err = unlink( "../" BAR "/" BUNDY ); - if( err < 0 ) SHOW_RESULT( unlink, err ); -#endif - - diag_printf("<INFO>: cd ..\n"); - err = chdir( ".." ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - checkcwd( dirname ); - -#ifdef CLEANUP - diag_printf("<INFO>: rmdir " BAR "\n"); - err = rmdir( BAR ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - listdir( dirname, false, existingdirents, NULL ); -#endif - - // -------------------------------------------------------------- - -#ifdef TEST_MOUNTPOINT2 - diag_printf("<INFO>: mount %s\n", TEST_MOUNTPOINT2); - err = mount( TEST_DEVICE2, TEST_MOUNTPOINT2, TEST_FSTYPE2 ); - - if( err == 0 ) - { - mp2 = true; - diag_printf("<INFO>: mount %s succeeded\n", TEST_MOUNTPOINT2); - err = access( TEST_MOUNTPOINT2 TEST_DIRECTORY2, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - if( err < 0 && errno == EACCES ) - { - diag_printf("<INFO>: create %s\n", - TEST_MOUNTPOINT2 TEST_DIRECTORY2); - err = mkdir( TEST_MOUNTPOINT2 TEST_DIRECTORY2, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - } - - err = chdir( TEST_MOUNTPOINT2 TEST_DIRECTORY2 ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - checkcwd( TEST_MOUNTPOINT2 TEST_DIRECTORY2 ); - - dirname[0] = 0; - strcat(dirname, TEST_MOUNTPOINT2 ); - strcat(dirname, TEST_DIRECTORY2 ); - - } - else - { - mp2 = false; - diag_printf("<INFO>: mount %s failed, ", TEST_MOUNTPOINT2); - diag_printf("using %s instead\n", dirname ); - } - -#endif - - listdir( dirname , true, -1, &existingdirents); - - NEW_FILENAME1( TINKY ); - NEW_FILENAME2( LAALAA ); - - createfile( filename1, 4567 ); - copyfile( filename1, filename2 ); - checkfile( filename1); - checkfile( filename2); - comparefiles( filename1, filename2 ); - - diag_printf("<INFO>: cd %s\n",dirname); - err = chdir( dirname ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - checkcwd( dirname ); - - diag_printf("<INFO>: mkdir " NOONOO "\n"); - err = mkdir( NOONOO, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - listdir( dirname , true, existingdirents+3, NULL); - - diag_printf("<INFO>: cd " NOONOO "\n"); - err = chdir( NOONOO ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - NEW_FILENAME1( NOONOO ); - checkcwd( filename1 ); - - createfile( TINKY, 6789 ); - checkfile( TINKY ); - - createfile( DIPSY, 34567 ); - checkfile( DIPSY ); - copyfile( DIPSY, PO ); - checkfile( PO ); - comparefiles( DIPSY, PO ); - - listdir( ".", true, 5, NULL ); - listdir( "..", true, existingdirents+3, NULL ); - - // -------------------------------------------------------------- - -#ifdef CLEANUP - diag_printf("<INFO>: unlink " TINKY "\n"); - err = unlink( TINKY ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink " DIPSY "\n"); - err = unlink( DIPSY ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink " PO "\n"); - err = unlink( PO ); - if( err < 0 ) SHOW_RESULT( unlink, err ); -#endif - - diag_printf("<INFO>: cd ..\n"); - err = chdir( ".." ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( dirname ); - -#ifdef CLEANUP - diag_printf("<INFO>: rmdir " NOONOO "\n"); - err = rmdir( NOONOO ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); -#endif - - // -------------------------------------------------------------- - - diag_printf("<INFO>: mkdir " XXXX "\n"); - err = mkdir( XXXX, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - diag_printf("<INFO>: mkdir " XXXX "/" YYYY "\n"); - err = mkdir( XXXX "/" YYYY, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - diag_printf("<INFO>: mkdir " XXXX "/" YYYY "/" ZZZZ "\n"); - err = mkdir( XXXX "/" YYYY "/" ZZZZ, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - diag_printf("<INFO>: mkdir " XXXX "/" YYYY "/" ZZZZ "/" WWWW "\n"); - err = mkdir( XXXX "/" YYYY "/" ZZZZ "/" WWWW, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - NEW_FILENAME1( XXXX "/" YYYY "/" ZZZZ "/" WWWW ); - diag_printf("<INFO>: cd %s\n",filename1); - err = chdir( filename1 ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( filename1 ); - - NEW_FILENAME1( XXXX "/" YYYY "/" ZZZZ ); - diag_printf("<INFO>: cd ..\n"); - err = chdir( ".." ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( filename1 ); - - NEW_FILENAME1( XXXX "/" YYYY "/" ZZZZ ); - diag_printf("<INFO>: cd .\n"); - err = chdir( "." ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( filename1 ); - - NEW_FILENAME1( XXXX "/" YYYY ); - diag_printf("<INFO>: cd ../../" YYYY "\n"); - err = chdir( "../../" YYYY ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( filename1 ); - - diag_printf("<INFO>: cd ../..\n"); - err = chdir( "../.." ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( dirname ); - - diag_printf("<INFO>: rmdir " XXXX "/" YYYY "/" ZZZZ "/" WWWW "\n"); - err = rmdir( XXXX "/" YYYY "/" ZZZZ "/" WWWW ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - diag_printf("<INFO>: rmdir "XXXX "/" YYYY "/" ZZZZ "\n"); - err = rmdir( XXXX "/" YYYY "/" ZZZZ ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - diag_printf("<INFO>: rmdir " XXXX "/" YYYY "\n"); - err = rmdir( XXXX "/" YYYY ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - diag_printf("<INFO>: rmdir "XXXX "\n"); - err = rmdir( XXXX ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - // -------------------------------------------------------------- - - checkcwd( dirname ); - -#ifdef CLEANUP - diag_printf("<INFO>: unlink "TINKY "\n"); - err = unlink( TINKY ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink " LAALAA" \n"); - err = unlink( LAALAA ); - if( err < 0 ) SHOW_RESULT( unlink, err ); -#endif - - // -------------------------------------------------------------- - - diag_printf("<INFO>: cd %s\n", TEST_MOUNTPOINT TEST_DIRECTORY); - err = chdir( TEST_MOUNTPOINT TEST_DIRECTORY); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( TEST_MOUNTPOINT TEST_DIRECTORY ); - - listdir( ".", true, -1, NULL ); - -#ifdef TEST_MOUNTPOINT2 - if( mp2 ) - { - diag_printf("<INFO>: umount %s\n",TEST_MOUNTPOINT2); - err = umount( TEST_MOUNTPOINT2 ); - if( err < 0 ) SHOW_RESULT( umount, err ); - } -#endif - - // -------------------------------------------------------------- - -#if 0 - maxfile("file.max"); - - listdir( "/", true, -1, NULL ); - - diag_printf("<INFO>: unlink file.max\n"); - err = unlink( "file.max" ); - if( err < 0 ) SHOW_RESULT( unlink, err ); -#endif - - // -------------------------------------------------------------- - - diag_printf("<INFO>: cd /\n"); - err = chdir( "/" ); - if( err == 0 ) - { - checkcwd( "/" ); - - diag_printf("<INFO>: umount %s\n",TEST_MOUNTPOINT); - err = umount( TEST_MOUNTPOINT ); - if( err < 0 ) SHOW_RESULT( umount, err ); - } - - diag_printf("<INFO>: syncing\n"); - err = cyg_fs_setinfo(TEST_MOUNTPOINT, FS_INFO_SYNC, 0, 0); - if (err != 0) SHOW_RESULT(sync, err); - - CYG_TEST_PASS_FINISH("yaffs4"); -} - -// ------------------------------------------------------------------------- - -#include <cyg/kernel/kapi.h> - -static cyg_handle_t thread_handle; -static cyg_thread thread; -static char stack[CYGNUM_HAL_STACK_SIZE_TYPICAL+1024*4]; - -externC void -cyg_start( void ) -{ - cyg_thread_create(3, // Priority - just a number - fileio4_main, // entry - 0, // index - 0, // no name - &stack[0], // Stack - sizeof(stack), // Size - &thread_handle, // Handle - &thread // Thread data structure - ); - cyg_thread_resume(thread_handle); - - cyg_scheduler_start(); -} - -#else // CYGPKG_KERNEL - -#include <cyg/infra/testcase.h> - -externC void cyg_start(void) -{ - CYG_TEST_NA("Needs CYGPKG_KERNEL"); -} - -#endif - -// ------------------------------------------------------------------------- -// EOF yaffs4.c
deleted file mode 100644 --- a/packages/fs/yaffs/current/tests/yaffs5.c +++ /dev/null @@ -1,837 +0,0 @@ -//========================================================================== -// -// yaffs5.c -// -// Test FAT filesystem -// -//========================================================================== -// ####ECOSGPLCOPYRIGHTBEGIN#### -// ------------------------------------------- -// This file is part of eCos, the Embedded Configurable Operating System. -// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004, 2006, 2007 Free Software Foundation, Inc. -// Copyright (C) 2004, 2006, 2007 eCosCentric Limited -// -// eCos is free software; you can redistribute it and/or modify it under -// the terms of the GNU General Public License as published by the Free -// Software Foundation; either version 2 or (at your option) any later -// version. -// -// eCos is distributed in the hope that it will be useful, but WITHOUT -// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -// for more details. -// -// You should have received a copy of the GNU General Public License -// along with eCos; if not, write to the Free Software Foundation, Inc., -// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -// -// As a special exception, if other files instantiate templates or use -// macros or inline functions from this file, or you compile this file -// and link it with other works to produce a work based on this file, -// this file does not by itself cause the resulting work to be covered by -// the GNU General Public License. However the source code for this file -// must still be made available in accordance with section (3) of the GNU -// General Public License v2. -// -// This exception does not invalidate any other reasons why a work based -// on this file might be covered by the GNU General Public License. -// ------------------------------------------- -// ####ECOSGPLCOPYRIGHTEND#### -//========================================================================== -//#####DESCRIPTIONBEGIN#### -// -// Author(s): nickg -// Contributors: nickg -// Date: 2007-03-28 -// Purpose: Test FAT system -// Description: This test gets some performance figures from the -// FAT filesystem. -// -//####DESCRIPTIONEND#### -// -//========================================================================== - -#include <pkgconf/system.h> - -#ifdef CYGPKG_KERNEL - -#include <pkgconf/hal.h> -#include <pkgconf/kernel.h> -#include <pkgconf/io_fileio.h> - -#include CYGDAT_DEVS_DISK_CFG // testing config defines - -#include <cyg/kernel/ktypes.h> // base kernel types -#include <cyg/infra/cyg_trac.h> // tracing macros -#include <cyg/infra/cyg_ass.h> // assertion macros - -#include <unistd.h> -#include <fcntl.h> -#include <sys/stat.h> -#include <errno.h> -#include <string.h> -#include <dirent.h> -#include <stdlib.h> - -#include <cyg/fileio/fileio.h> - -#include <cyg/infra/testcase.h> -#include <cyg/infra/diag.h> // HAL polled output - -//========================================================================== -// Config options - -#define TEST_DEVICE CYGDAT_DEVS_DISK_TEST_DEVICE - -#define TEST_MOUNTPOINT CYGDAT_DEVS_DISK_TEST_MOUNTPOINT - -#define TEST_DIRECTORY CYGDAT_DEVS_DISK_TEST_DIRECTORY - -#define TEST_FSTYPE "yaffs" - -#ifdef CYGDAT_DEVS_DISK_TEST_MOUNTPOINT2 - -#define TEST_DEVICE2 CYGDAT_DEVS_DISK_TEST_DEVICE2 - -#define TEST_MOUNTPOINT2 CYGDAT_DEVS_DISK_TEST_MOUNTPOINT2 - -#define TEST_DIRECTORY2 CYGDAT_DEVS_DISK_TEST_DIRECTORY2 - -#define TEST_FSTYPE2 "yaffs" - -#endif - -//========================================================================== - -#define SHOW_RESULT( _fn, _res ) \ -{ \ - diag_printf("<FAIL>: " #_fn "() returned %ld %s\n", (long)_res, _res<0?strerror(errno):""); \ -} - -//========================================================================== - -typedef struct -{ - cyg_int64 ticks; - cyg_int32 halticks; -} timestamp; - -typedef struct -{ - timestamp start; - timestamp end; - cyg_int64 interval; // In HAL ticks - cyg_int64 us_interval; // Interval in microseconds -} timing; - -static cyg_int64 ticks_overhead = 0; -static cyg_int32 us_per_haltick = 0; -static cyg_int32 halticks_per_us = 0; - -static cyg_int64 rtc_resolution[] = CYGNUM_KERNEL_COUNTERS_RTC_RESOLUTION; -static cyg_int64 rtc_period = CYGNUM_KERNEL_COUNTERS_RTC_PERIOD; -static cyg_int32 ticks_per_second; - -//========================================================================== - -static char date_string[] = __DATE__; -static char time_string[] = __TIME__; - -cyg_uint32 timehash; - -//========================================================================== - -static void wait_for_tick( void ) -{ - cyg_tick_count_t now = cyg_current_time(); - - while( cyg_current_time() == now ) - continue; -} - -static void get_timestamp( timestamp *ts ) -{ - ts->ticks = cyg_current_time(); - HAL_CLOCK_READ( (cyg_uint32 *)&ts->halticks ); -} - -static cyg_int64 ticks_to_us( cyg_int64 ticks ) -{ - cyg_int64 us; - - if( us_per_haltick != 0 ) - us = ticks * us_per_haltick; - else - us = ticks / halticks_per_us; - - return us; -} - -static void calculate_interval( timing *t ) -{ - t->interval = t->end.halticks - t->start.halticks; - - t->interval += (t->end.ticks - t->start.ticks) * rtc_period; - - t->interval -= ticks_overhead; - - t->us_interval = ticks_to_us( t->interval ); -} - -static void init_timing( void ) -{ - timing t; - - ticks_per_second = (1000000000ULL*rtc_resolution[1])/rtc_resolution[0]; - us_per_haltick = 1000000/(rtc_period * rtc_resolution[1]); - halticks_per_us = (rtc_period * rtc_resolution[1])/1000000; - - wait_for_tick(); - - get_timestamp( &t.start ); - get_timestamp( &t.end ); - - calculate_interval( &t ); - - ticks_overhead = t.interval; - - diag_printf("Timing overhead %lld ticks\n", ticks_overhead ); - -} - -//========================================================================== - -#ifndef CYGPKG_LIBC_STRING - -char *strcat( char *s1, const char *s2 ) -{ - char *s = s1; - while( *s1 ) s1++; - while( (*s1++ = *s2++) != 0); - return s; -} - -#endif - -__externC int -rename( const char * /* oldpath */, const char * /* newpath */ ) __THROW; - -//========================================================================== - -static void listdir( char *name, int statp, int numexpected, int *numgot ) -{ - int err; - DIR *dirp; - int num=0; - - diag_printf("<INFO>: reading directory %s\n",name); - -// diag_printf("<INFO>: opendir(%s)\n",name); - dirp = opendir( name ); - if( dirp == NULL ) SHOW_RESULT( opendir, -1 ); - - for(;;) - { - struct dirent *entry = readdir( dirp ); - - if( entry == NULL ) - break; - num++; - diag_printf("<INFO>: entry %14s",entry->d_name); - if( statp ) - { - char fullname[PATH_MAX]; - struct stat sbuf; - - if( name[0] ) - { - strcpy(fullname, name ); - if( !(name[0] == '/' && name[1] == 0 ) ) - strcat(fullname, "/" ); - } - else fullname[0] = 0; - - strcat(fullname, entry->d_name ); - - err = stat( fullname, &sbuf ); - if( err < 0 ) - { - if( errno == ENOSYS ) - diag_printf(" <no status available>"); - else SHOW_RESULT( stat, err ); - } - else - { - diag_printf(" [mode %08x ino %08x nlink %d size %ld]", - sbuf.st_mode,sbuf.st_ino,sbuf.st_nlink,sbuf.st_size); - } - } - - diag_printf("\n"); - } - -// diag_printf("<INFO>: closedir(%s)\n",name); - err = closedir( dirp ); - if( err < 0 ) SHOW_RESULT( stat, err ); - if (numexpected >= 0 && num != numexpected) - CYG_TEST_FAIL("Wrong number of dir entries\n"); - if ( numgot != NULL ) - *numgot = num; -} - -//========================================================================== - -static void createfile( char *name, size_t asize, size_t block_size ) -{ - size_t size = asize; - cyg_uint8 *buf; - cyg_uint32 *b; - int fd; - ssize_t wrote; - int i; - int err; - timing opent, writet; - - diag_printf("\n--------------------------------------------------------------------\n"); - diag_printf("<INFO>: create file %s size %ld block_size %ld\n",name, (long)size, (long)block_size); - - buf = malloc( block_size ); - if( buf == NULL ) - { - SHOW_RESULT( malloc, -1 ); - return; - } - b = (cyg_uint32 *)buf; - - err = access( name, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - i = 0; - while( i < block_size/sizeof(cyg_uint32) ) - { - b[i] = i; - i++; - b[i++] = 0; - b[i++] = timehash; - b[i++] = 0x12345678; - } - - - get_timestamp( &opent.start ); - fd = open( name, O_WRONLY|O_CREAT ); - get_timestamp( &opent.end ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - get_timestamp( &writet.start ); - while( size > 0 ) - { - ssize_t len = size; - if ( len > block_size ) len = block_size; - - b[1] = asize-size; - b[block_size/sizeof(cyg_uint32)-3] = asize-size; - wrote = write( fd, buf, len ); - if( wrote != len ) SHOW_RESULT( write, wrote ); - - size -= wrote; - } - get_timestamp( &writet.end ); - - free( buf ); - - err = close( fd ); - if( err < 0 ) SHOW_RESULT( close, err ); - - calculate_interval( &opent ); - calculate_interval( &writet ); - - diag_printf("CreateFile Results: %s size %ld\n", name, (long)asize); - diag_printf(" Open %8d.%03d ms\n", (int)(opent.us_interval/1000), (int)(opent.us_interval%1000) ); - diag_printf(" Write %8d.%03d ms\n", (int)(writet.us_interval/1000), (int)(writet.us_interval%1000) ); - diag_printf(" Data Rate %10lld KiB/s\n", (1000000LL*asize)/1024/writet.us_interval); -} - -//========================================================================== - -static void checkfile( char *name, size_t block_size ) -{ - cyg_uint8 *buf; - cyg_uint32 *b; - int fd; - ssize_t done; - int err; - off_t pos = 0; - timing opent, readt; - - diag_printf("\n--------------------------------------------------------------------\n"); - diag_printf("<INFO>: check file %s\n",name); - - buf = malloc( block_size ); - if( buf == NULL ) - { - SHOW_RESULT( malloc, -1 ); - return; - } - b = (cyg_uint32 *)buf; - - err = access( name, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - get_timestamp( &opent.start ); - fd = open( name, O_RDONLY ); - get_timestamp( &opent.end ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - get_timestamp( &readt.start ); - for(;;) - { - done = read( fd, buf, block_size ); - if( done < 0 ) SHOW_RESULT( read, done ); - - if( done == 0 ) break; - - // Check that this is the block we wrote - if( b[0] != 0 ) - diag_printf("b[%d] != %08x\n", 0, 0 ); - - if( b[1] != pos ) - diag_printf("b[%d] != %08x\n", 1, (unsigned)pos ); - - if( b[2] != timehash ) - diag_printf("b[%d] != %08x\n", 2, timehash ); - - if( b[3] != 0x12345678 ) - diag_printf("b[%d] != %08x\n", 3, 0x12345678 ); - - if( b[(block_size/sizeof(cyg_uint32))-4] != (block_size/sizeof(cyg_uint32)-4) ) - diag_printf("b[%lu](%08x) != %08x\n", (long)block_size/sizeof(cyg_uint32)-4, - b[(block_size/sizeof(cyg_uint32))-4], - (unsigned)(block_size/sizeof(cyg_uint32)-4) ); - - if( b[block_size/sizeof(cyg_uint32)-3] != pos ) - diag_printf("b[%lu] != %08x\n", (long)block_size/sizeof(cyg_uint32)-3, (unsigned)pos ); - - if( b[block_size/sizeof(cyg_uint32)-2] != timehash ) - diag_printf("b[%lu] != %08x\n", (long)block_size/sizeof(cyg_uint32)-2, timehash ); - - if( b[block_size/sizeof(cyg_uint32)-1] != 0x12345678 ) - diag_printf("b[%lu] != %08x\n", (long)block_size/sizeof(cyg_uint32)-1, 0x12345678 ); - - pos += done; - } - get_timestamp( &readt.end ); - - free( buf ); - - err = close( fd ); - if( err < 0 ) SHOW_RESULT( close, err ); - - calculate_interval( &opent ); - calculate_interval( &readt ); - - diag_printf("CheckFile Results: %s size %ld\n", name, pos); - diag_printf(" Open %8d.%03d ms\n", (int)(opent.us_interval/1000), (int)(opent.us_interval%1000) ); - diag_printf(" Read %8d.%03d ms\n", (int)(readt.us_interval/1000), (int)(readt.us_interval%1000) ); - diag_printf(" Data Rate %10lld KiB/s\n", (1000000LL*pos)/1024/readt.us_interval); -} - -//========================================================================== - -#define TIME_DATA_MAX 20 - -static void checkfile1( char *name, size_t block_size ) -{ - cyg_uint8 *buf; - cyg_uint32 *b; - int fd; - ssize_t done; - int err; - off_t pos = 0; - timing totalt; - - struct - { - int valid; - timing mountt; - timing opent; - timing seekt; - timing readt; - timing closet; - timing umountt; - } time_data[TIME_DATA_MAX]; - int td; - - for( td = 0; td < TIME_DATA_MAX; td++ ) - time_data[td].valid = 0; - td = 0; - - diag_printf("\n--------------------------------------------------------------------\n"); - diag_printf("<INFO>: check file1 %s\n",name); - - buf = malloc( block_size ); - if( buf == NULL ) - { - SHOW_RESULT( malloc, -1 ); - return; - } - b = (cyg_uint32 *)buf; - - get_timestamp( &totalt.start ); - for(;;) - { - get_timestamp( &time_data[td].mountt.start ); - err = mount( TEST_DEVICE, TEST_MOUNTPOINT, TEST_FSTYPE ); - get_timestamp( &time_data[td].mountt.end ); - if( err < 0 ) SHOW_RESULT( mount, err ); - - get_timestamp( &time_data[td].opent.start ); - fd = open( name, O_RDONLY ); - get_timestamp( &time_data[td].opent.end ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - get_timestamp( &time_data[td].seekt.start ); - err = lseek( fd, pos, SEEK_SET ); - get_timestamp( &time_data[td].seekt.end ); - if( err < 0 ) SHOW_RESULT( lseek, err ); - - get_timestamp( &time_data[td].readt.start ); - done = read( fd, buf, block_size ); - get_timestamp( &time_data[td].readt.end ); - if( done < 0 ) SHOW_RESULT( read, done ); - - get_timestamp( &time_data[td].closet.start ); - err = close( fd ); - get_timestamp( &time_data[td].closet.end ); - if( err < 0 ) SHOW_RESULT( close, err ); - - get_timestamp( &time_data[td].umountt.start ); - err = umount( TEST_MOUNTPOINT ); - get_timestamp( &time_data[td].umountt.end ); - if( err < 0 ) SHOW_RESULT( umount, err ); - - if( done == 0 ) break; - - // Check that this is the block we wrote - if( b[0] != 0 ) - diag_printf("b[%d] != %08x\n", 0, 0 ); - - if( b[1] != pos ) - diag_printf("b[%d] != %08x\n", 1, (unsigned)pos ); - -// if( b[2] != timehash ) -// diag_printf("b[%d] != %08x\n", 2, timehash ); - - if( b[3] != 0x12345678 ) - diag_printf("b[%d] != %08x\n", 3, 0x12345678 ); - - if( b[(block_size/sizeof(cyg_uint32))-4] != (block_size/sizeof(cyg_uint32)-4) ) - diag_printf("b[%lu](%08x) != %08x\n", (long)block_size/sizeof(cyg_uint32)-4, - b[(block_size/sizeof(cyg_uint32))-4], - (unsigned)(block_size/sizeof(cyg_uint32)-4) ); - - if( b[block_size/sizeof(cyg_uint32)-3] != pos ) - diag_printf("b[%lu] != %08x\n", (long)block_size/sizeof(cyg_uint32)-3, (unsigned)pos ); - -// if( b[block_size/sizeof(cyg_uint32)-2] != timehash ) -// diag_printf("b[%d] != %08x\n", block_size/sizeof(cyg_uint32)-2, timehash ); - - if( b[block_size/sizeof(cyg_uint32)-1] != 0x12345678 ) - diag_printf("b[%lu] != %08x\n", (long)block_size/sizeof(cyg_uint32)-1, 0x12345678 ); - - pos += done; - - time_data[td].valid = 1; - if( td < (TIME_DATA_MAX-1) ) - td++; - } - get_timestamp( &totalt.end ); - - free( buf ); - - diag_printf("Block Mount Open Seek Read Close Umount\n"); - - for( td = 0; td < TIME_DATA_MAX; td++ ) - { - if( !time_data[td].valid ) - continue; - - calculate_interval( &time_data[td].mountt ); - calculate_interval( &time_data[td].opent ); - calculate_interval( &time_data[td].seekt ); - calculate_interval( &time_data[td].readt ); - calculate_interval( &time_data[td].closet ); - calculate_interval( &time_data[td].umountt ); - - diag_printf("%2d:", td); - diag_printf(" %8d.%03d", (int)(time_data[td].mountt.us_interval/1000), (int)(time_data[td].mountt.us_interval%1000) ); - diag_printf(" %8d.%03d", (int)(time_data[td].opent.us_interval/1000), (int)(time_data[td].opent.us_interval%1000) ); - diag_printf(" %8d.%03d", (int)(time_data[td].seekt.us_interval/1000), (int)(time_data[td].seekt.us_interval%1000) ); - diag_printf(" %8d.%03d", (int)(time_data[td].readt.us_interval/1000), (int)(time_data[td].readt.us_interval%1000) ); - diag_printf(" %8d.%03d", (int)(time_data[td].closet.us_interval/1000), (int)(time_data[td].closet.us_interval%1000) ); - diag_printf(" %8d.%03d", (int)(time_data[td].umountt.us_interval/1000), (int)(time_data[td].umountt.us_interval%1000) ); - diag_printf("\n"); - } - - calculate_interval( &totalt ); - diag_printf("CheckFile1 Results: %s size %ld\n", name, pos); - diag_printf(" Total %8d.%03d ms\n", (int)(totalt.us_interval/1000), (int)(totalt.us_interval%1000) ); - diag_printf(" Data Rate %10lld KiB/s\n", (1000000LL*pos)/1024/totalt.us_interval); - -} - -//========================================================================== - -void checkcwd( const char *cwd ) -{ - static char cwdbuf[PATH_MAX]; - char *ret; - - ret = getcwd( cwdbuf, sizeof(cwdbuf)); - if( ret == NULL ) SHOW_RESULT( getcwd, ret ); - - if( strcmp( cwdbuf, cwd ) != 0 ) - { - diag_printf( "cwdbuf %s cwd %s\n",cwdbuf, cwd ); - CYG_TEST_FAIL( "Current directory mismatch"); - } -} - -//========================================================================== - -void fs_callback( cyg_int32 event, CYG_ADDRWORD data ) -{ -#if 0 - diag_printf("Filesystem %sSAFE\n", - event==CYG_FS_CALLBACK_UNSAFE?"UN":""); -#endif -} - - -//========================================================================== -// main - -void yaffs5_main( CYG_ADDRESS id ) -{ - int err; - int existingdirents=-1; - int i; - timing mountt, umountt; - -#if defined(CYGSEM_FILEIO_BLOCK_USAGE) - struct cyg_fs_block_usage usage; -#endif -// struct cyg_fs_callback_info callback; - - CYG_TEST_INIT(); - - init_timing(); - - for( i = 0 ; date_string[i] != 0 ; i++ ) - timehash = (timehash<<1) ^ date_string[i]; - for( i = 0 ; time_string[i] != 0 ; i++ ) - timehash = (timehash<<1) ^ time_string[i]; - - // -------------------------------------------------------------- - -#if 1 -#define DO_UMOUNT - get_timestamp( &mountt.start ); - err = mount( TEST_DEVICE, TEST_MOUNTPOINT, TEST_FSTYPE ); -// err = mount( TEST_DEVICE, TEST_MOUNTPOINT, "yaffs:sync=write" ); -// err = mount( TEST_DEVICE, TEST_MOUNTPOINT, "yaffs:sync=close" ); -// err = mount( TEST_DEVICE, TEST_MOUNTPOINT, "yaffs:sync=data" ); - get_timestamp( &mountt.end ); - if( err < 0 ) { - SHOW_RESULT( mount, err ); - CYG_TEST_FAIL_FINISH("yaffs5"); - } - -#if 0 - callback.callback = fs_callback; - callback.data = 0; - err = cyg_fs_setinfo(TEST_MOUNTPOINT, FS_INFO_CALLBACK, - &callback, sizeof(callback)); - if( err < 0 ) SHOW_RESULT( cyg_fs_setinfo, err ); -#endif - - calculate_interval( &mountt ); - diag_printf(" Mount %8d.%03d ms\n", (int)(mountt.us_interval/1000), (int)(mountt.us_interval%1000) ); - - err = access( TEST_MOUNTPOINT TEST_DIRECTORY, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - if( err < 0 && errno == EACCES ) - { - diag_printf("<INFO>: create %s\n", - TEST_MOUNTPOINT TEST_DIRECTORY); - err = mkdir( TEST_MOUNTPOINT TEST_DIRECTORY, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - } - - err = chdir( TEST_MOUNTPOINT TEST_DIRECTORY ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - checkcwd( TEST_MOUNTPOINT TEST_DIRECTORY ); - - listdir( TEST_MOUNTPOINT TEST_DIRECTORY, true, -1, &existingdirents ); - - // -------------------------------------------------------------- -#if defined(CYGSEM_FILEIO_BLOCK_USAGE) - err = cyg_fs_getinfo(TEST_MOUNTPOINT, FS_INFO_BLOCK_USAGE, - &usage, sizeof(usage)); - if( err < 0 ) SHOW_RESULT( cyg_fs_getinfo, err ); - diag_printf("<INFO>: total size: %6lld blocks, %10lld bytes\n", - usage.total_blocks, usage.total_blocks * usage.block_size); - diag_printf("<INFO>: free size: %6lld blocks, %10lld bytes\n", - usage.free_blocks, usage.free_blocks * usage.block_size); - diag_printf("<INFO>: block size: %6u bytes\n", usage.block_size); -#endif - // -------------------------------------------------------------- - -#endif - -#if 1 - createfile( "yaffs5.0", 1024*1024, 16*1024 ); - checkfile( "yaffs5.0",16*1024 ); - err = unlink( "yaffs5.0" ); - err = cyg_fs_setinfo(TEST_MOUNTPOINT, FS_INFO_SYNC, 0, 0); - if (err != 0) SHOW_RESULT(sync, err); -#endif - -#if 1 - createfile( "yaffs5.0", 200*1024, 1024 ); - checkfile( "yaffs5.0", 1024 ); - err = unlink( "yaffs5.0" ); -#endif - -#if 1 - createfile( "yaffs5.1", 1024*1024, 1024 ); - createfile( "yaffs5.2", 1024*1024, 4*1024 ); - err = cyg_fs_setinfo(TEST_MOUNTPOINT, FS_INFO_SYNC, 0, 0); - if (err != 0) SHOW_RESULT(sync, err); - createfile( "yaffs5.3", 8*1024*1024, 32*1024 ); - - checkfile( "yaffs5.1", 1024 ); - checkfile( "yaffs5.2", 4*1024 ); - checkfile( "yaffs5.3", 32*1024 ); - - diag_printf("\n--------------------------------------------------------------------\n"); - - listdir( "." , true, existingdirents+3, NULL ); - - // -------------------------------------------------------------- - - diag_printf("<INFO>: unlink yaffs5.1\n"); - err = unlink( "yaffs5.1" ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink yaffs5.2\n"); - err = unlink( "yaffs5.2" ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink yaffs5.3\n"); - err = unlink( "yaffs5.3" ); - if( err < 0 ) SHOW_RESULT( unlink, err ); -#endif - - // -------------------------------------------------------------- - -#if 1 && defined(DO_UMOUNT) - - diag_printf("<INFO>: unlink yaffs5.4\n"); - err = unlink( "yaffs5.4" ); - - createfile( "yaffs5.4", 5*1024*1024, 32*1024 ); -#endif - - // -------------------------------------------------------------- - -#ifdef DO_UMOUNT - diag_printf("<INFO>: cd /\n"); - err = chdir( "/" ); - if( err == 0 ) - { - checkcwd( "/" ); - - diag_printf("<INFO>: umount %s\n",TEST_MOUNTPOINT); - get_timestamp( &umountt.start ); - err = umount( TEST_MOUNTPOINT ); - get_timestamp( &umountt.end ); - if( err < 0 ) SHOW_RESULT( umount, err ); - - calculate_interval( &umountt ); - diag_printf(" Umount %8d.%03d ms\n", (int)(umountt.us_interval/1000), (int)(umountt.us_interval%1000) ); - - } -#endif - -#if 1 - - diag_printf("<INFO>: syncing\n"); - err = cyg_fs_setinfo(TEST_MOUNTPOINT, FS_INFO_SYNC, 0, 0); - if (err != 0) SHOW_RESULT(sync, err); - - checkfile1(TEST_MOUNTPOINT TEST_DIRECTORY "/yaffs5.4", 32*1024 ); - - // Remount just to remove yaffs5.4 - err = mount( TEST_DEVICE, TEST_MOUNTPOINT, TEST_FSTYPE ); - if( err < 0 ) { - SHOW_RESULT( mount, err ); - CYG_TEST_FAIL_FINISH("yaffs5"); - } - err = unlink( TEST_MOUNTPOINT TEST_DIRECTORY "/yaffs5.4" ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - err = umount( TEST_MOUNTPOINT ); - if( err < 0 ) SHOW_RESULT( umount, err ); - -#else - - // don't sync if not mounted - diag_printf("<INFO>: syncing\n"); - err = cyg_fs_setinfo(TEST_MOUNTPOINT, FS_INFO_SYNC, 0, 0); - if (err != 0) SHOW_RESULT(sync, err); - -#endif - - CYG_TEST_PASS_FINISH("yaffs5"); -} - -// ------------------------------------------------------------------------- - -#include <cyg/kernel/kapi.h> - -static cyg_handle_t thread_handle; -static cyg_thread thread; -static char stack[CYGNUM_HAL_STACK_SIZE_TYPICAL+8*1024]; -//static char stack[64*1024]; - -externC void -cyg_start( void ) -{ - cyg_thread_create(3, // Priority - just a number - yaffs5_main, // entry - 0, // index - 0, // no name - &stack[0], // Stack - sizeof(stack), // Size - &thread_handle, // Handle - &thread // Thread data structure - ); - cyg_thread_resume(thread_handle); - - cyg_scheduler_start(); -} - -#else // CYGPKG_KERNEL - -#include <cyg/infra/testcase.h> - -externC void cyg_start(void) -{ - CYG_TEST_NA("Needs CYGPKG_KERNEL"); -} - -#endif - -// ------------------------------------------------------------------------- -// EOF yaffs5.c
deleted file mode 100644 --- a/packages/fs/yaffs/current/tests/yaffs6.c +++ /dev/null @@ -1,984 +0,0 @@ -//========================================================================== -// -// yaffs6.c -// -// Test FAT UTF-8 support -// -//========================================================================== -// ####ECOSGPLCOPYRIGHTBEGIN#### -// ------------------------------------------- -// This file is part of eCos, the Embedded Configurable Operating System. -// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. -// Copyright (C) 2004, 2005, 2006, 2007 eCosCentric Limited -// -// eCos is free software; you can redistribute it and/or modify it under -// the terms of the GNU General Public License as published by the Free -// Software Foundation; either version 2 or (at your option) any later -// version. -// -// eCos is distributed in the hope that it will be useful, but WITHOUT -// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -// for more details. -// -// You should have received a copy of the GNU General Public License -// along with eCos; if not, write to the Free Software Foundation, Inc., -// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -// -// As a special exception, if other files instantiate templates or use -// macros or inline functions from this file, or you compile this file -// and link it with other works to produce a work based on this file, -// this file does not by itself cause the resulting work to be covered by -// the GNU General Public License. However the source code for this file -// must still be made available in accordance with section (3) of the GNU -// General Public License v2. -// -// This exception does not invalidate any other reasons why a work based -// on this file might be covered by the GNU General Public License. -// ------------------------------------------- -// ####ECOSGPLCOPYRIGHTEND#### -//========================================================================== -//#####DESCRIPTIONBEGIN#### -// -// Author(s): nickg -// Contributors: nickg -// Date: 2007-06-20 -// Purpose: Test fileio system -// Description: This test uses the testfs to check out the initialization -// and basic operation of the fileio system. -// This is essentially a copy of yaffs4 with UTF8 encoded -// file names. -// -//####DESCRIPTIONEND#### -// -//========================================================================== - -#include <pkgconf/system.h> - -#ifdef CYGPKG_KERNEL - -#include <pkgconf/hal.h> -#include <pkgconf/kernel.h> -#include <pkgconf/io_fileio.h> - -#include CYGDAT_DEVS_DISK_CFG // testing config defines - -#include <cyg/kernel/ktypes.h> // base kernel types -#include <cyg/infra/cyg_trac.h> // tracing macros -#include <cyg/infra/cyg_ass.h> // assertion macros - -#include <unistd.h> -#include <fcntl.h> -#include <sys/stat.h> -#include <errno.h> -#include <string.h> -#include <dirent.h> - -#include <cyg/fileio/fileio.h> - -#include <cyg/infra/testcase.h> -#include <cyg/infra/diag.h> // HAL polled output - -//========================================================================== -// Config options - -#define TEST_DEVICE CYGDAT_DEVS_DISK_TEST_DEVICE - -#define TEST_MOUNTPOINT CYGDAT_DEVS_DISK_TEST_MOUNTPOINT - -#define TEST_DIRECTORY CYGDAT_DEVS_DISK_TEST_DIRECTORY - -#define TEST_FSTYPE "yaffs" - -#ifdef CYGDAT_DEVS_DISK_TEST_MOUNTPOINT2 - -#define TEST_DEVICE2 CYGDAT_DEVS_DISK_TEST_DEVICE2 - -#define TEST_MOUNTPOINT2 CYGDAT_DEVS_DISK_TEST_MOUNTPOINT2 - -#define TEST_DIRECTORY2 CYGDAT_DEVS_DISK_TEST_DIRECTORY2 - -#define TEST_FSTYPE2 "yaffs" - -#endif - -//========================================================================== - -#define SHOW_RESULT( _fn, _res ) \ -{ \ - diag_printf("<FAIL>: " #_fn "() returned %ld %s\n", (long)_res, _res<0?strerror(errno):""); \ -} - -//========================================================================== - -#define IOSIZE 100 - -#define CLEANUP - -//========================================================================== -// The following filenames are in Cyrillic and are UTF-8 encoded. -// -// WARNING: Only edit this file with an editor that is UTF-8 aware (I -// use EMACS on Linux, but Notepad on Windows also works). Saving this -// file from an unaware editor could cause these strings to be -// corrupted and make this test fail. If the strings below do not -// appear as clean Cyrillic characters then exit now without saving -// and look for a better editor. - -#if 1 - -#define FOO "Фоо" -#define FEE "Спутник" -#define BAR "Байконур" -#define BUNDY "СергеЬй ПаЬвлович Королёв" -#define FUM "Юрий Гагаринский" -#define DOO "Константин Эдуардович Циолковский" -//#define FIE "Федеральное космическое агентство России" -#define FIE "Федеральное космическое" -#define FOE "Валентин Петрович Глушко" - -#define TINKY "Восток" -#define LAALAA "Восход" -#define NOONOO "Салют" -#define DIPSY "Космодром" -#define PO "Лайка" - -#define XXXX "Гласность" -#define YYYY "перестройка" -#define ZZZZ "Калашникова" -#define WWWW "матрёшка" - -#else - -#define FOO "foo" -#define FEE "fee" -#define BAR "bar" -#define BUNDY "bundy" -#define FUM "fum" -#define DOO "doo" -#define FIE "fie" -#define FOE "foe" - -#define TINKY "tinky" -#define LAALAA "laalaa" -#define NOONOO "noonoo" -#define DIPSY "dipsy" -#define PO "po" - -#define XXXX "xxxx" -#define YYYY "yyyy" -#define ZZZZ "zzzz" -#define WWWW "wwww" - -#endif - - -//========================================================================== - -#ifndef CYGPKG_LIBC_STRING - -char *strcat( char *s1, const char *s2 ) -{ - char *s = s1; - while( *s1 ) s1++; - while( (*s1++ = *s2++) != 0); - return s; -} - -#endif - -__externC int -rename( const char * /* oldpath */, const char * /* newpath */ ) __THROW; - -//========================================================================== - -static void listdir( char *name, int statp, int numexpected, int *numgot ) -{ - int err; - DIR *dirp; - int num=0; - - diag_printf("<INFO>: reading directory %s\n",name); - -// diag_printf("<INFO>: opendir(%s)\n",name); - dirp = opendir( name ); - if( dirp == NULL ) SHOW_RESULT( opendir, -1 ); - - for(;;) - { - struct dirent *entry = readdir( dirp ); - - if( entry == NULL ) - break; - num++; - - diag_printf("<INFO>: entry "); - - if( statp ) - { - char fullname[PATH_MAX]; - struct stat sbuf; - - if( name[0] ) - { - strcpy(fullname, name ); - if( !(name[0] == '/' && name[1] == 0 ) ) - strcat(fullname, "/" ); - } - else fullname[0] = 0; - - strcat(fullname, entry->d_name ); - - err = stat( fullname, &sbuf ); - if( err < 0 ) - { - if( errno == ENOSYS ) - diag_printf(" <no status available>"); - else SHOW_RESULT( stat, err ); - } - else - { - diag_printf(" [mode %08x ino %08x nlink %d size %6ld]", - sbuf.st_mode,sbuf.st_ino,sbuf.st_nlink,sbuf.st_size); - } - } - - diag_printf(" %s\n",entry->d_name); - } - -// diag_printf("<INFO>: closedir(%s)\n",name); - err = closedir( dirp ); - if( err < 0 ) SHOW_RESULT( stat, err ); - if (numexpected >= 0 && num != numexpected) - CYG_TEST_FAIL("Wrong number of dir entries"); - if ( numgot != NULL ) - *numgot = num; -} - -//========================================================================== - -static void createfile( char *name, size_t size ) -{ - char buf[IOSIZE]; - int fd; - ssize_t wrote; - int i; - int err; - - diag_printf("<INFO>: create file %s size %ld\n",name, (long)size); - - err = access( name, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - for( i = 0; i < IOSIZE; i++ ) buf[i] = i%256; - - fd = open( name, O_WRONLY|O_CREAT ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - while( size > 0 ) - { - ssize_t len = size; - if ( len > IOSIZE ) len = IOSIZE; - - wrote = write( fd, buf, len ); - if( wrote != len ) SHOW_RESULT( write, wrote ); - - size -= wrote; - } - - err = close( fd ); - if( err < 0 ) SHOW_RESULT( close, err ); -} - -//========================================================================== - -#if 0 -static void maxfile( char *name ) -{ - char buf[IOSIZE]; - int fd; - ssize_t wrote; - int i; - int err; - size_t size = 0; - size_t prevsize = 0; - - diag_printf("<INFO>: create maximal file %s\n",name); - diag_printf("<INFO>: This may take a few minutes\n"); - - err = access( name, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - for( i = 0; i < IOSIZE; i++ ) buf[i] = i%256; - - fd = open( name, O_WRONLY|O_CREAT ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - do - { - wrote = write( fd, buf, IOSIZE ); - //if( wrote < 0 ) SHOW_RESULT( write, wrote ); - - if( wrote >= 0 ) - size += wrote; - - if( (size-prevsize) > 100000 ) - { - diag_printf("<INFO>: size = %ld \n", size); - prevsize = size; - } - - } while( wrote == IOSIZE ); - - diag_printf("<INFO>: file size == %ld\n",size); - - err = close( fd ); - if( err < 0 ) SHOW_RESULT( close, err ); -} -#endif - -//========================================================================== - -static void checkfile( char *name ) -{ - char buf[IOSIZE]; - int fd; - ssize_t done; - int i; - int err; - off_t pos = 0; - - diag_printf("<INFO>: check file %s\n",name); - - err = access( name, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - fd = open( name, O_RDONLY ); - if( fd < 0 ) SHOW_RESULT( open, fd ); - - for(;;) - { - done = read( fd, buf, IOSIZE ); - if( done < 0 ) SHOW_RESULT( read, done ); - - if( done == 0 ) break; - - for( i = 0; i < done; i++ ) - if( buf[i] != i%256 ) - { - diag_printf("buf[%ld+%d](%02x) != %02x\n",pos,i,buf[i],i%256); - CYG_TEST_FAIL("Data read not equal to data written\n"); - for(;;); - } - - pos += done; - } - - err = close( fd ); - if( err < 0 ) SHOW_RESULT( close, err ); -} - -//========================================================================== - -static void copyfile( char *name2, char *name1 ) -{ - - int err; - char buf[IOSIZE]; - int fd1, fd2; - ssize_t done, wrote; - - diag_printf("<INFO>: copy file %s -> %s\n",name2,name1); - - err = access( name1, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - err = access( name2, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - fd1 = open( name1, O_WRONLY|O_CREAT ); - if( fd1 < 0 ) SHOW_RESULT( open, fd1 ); - - fd2 = open( name2, O_RDONLY ); - if( fd2 < 0 ) SHOW_RESULT( open, fd2 ); - - for(;;) - { - done = read( fd2, buf, IOSIZE ); - if( done < 0 ) SHOW_RESULT( read, done ); - - if( done == 0 ) break; - - wrote = write( fd1, buf, done ); - if( wrote != done ) SHOW_RESULT( write, wrote ); - - if( wrote != done ) break; - } - - err = close( fd1 ); - if( err < 0 ) SHOW_RESULT( close, err ); - - err = close( fd2 ); - if( err < 0 ) SHOW_RESULT( close, err ); - -} - -//========================================================================== - -static void comparefiles( char *name2, char *name1 ) -{ - int err; - char buf1[IOSIZE]; - char buf2[IOSIZE]; - int fd1, fd2; - ssize_t done1, done2; - int i; - - diag_printf("<INFO>: compare files %s == %s\n",name2,name1); - - err = access( name1, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - err = access( name1, F_OK ); - if( err != 0 ) SHOW_RESULT( access, err ); - - fd1 = open( name1, O_RDONLY ); - if( fd1 < 0 ) SHOW_RESULT( open, fd1 ); - - fd2 = open( name2, O_RDONLY ); - if( fd2 < 0 ) SHOW_RESULT( open, fd2 ); - - for(;;) - { - done1 = read( fd1, buf1, IOSIZE ); - if( done1 < 0 ) SHOW_RESULT( read, done1 ); - - done2 = read( fd2, buf2, IOSIZE ); - if( done2 < 0 ) SHOW_RESULT( read, done2 ); - - if( done1 != done2 ) - diag_printf("Files different sizes\n"); - - if( done1 == 0 ) break; - - for( i = 0; i < done1; i++ ) - if( buf1[i] != buf2[i] ) - { - diag_printf("buf1[%d](%02x) != buf1[%d](%02x)\n",i,buf1[i],i,buf2[i]); - CYG_TEST_FAIL("Data in files not equal\n"); - } - } - - err = close( fd1 ); - if( err < 0 ) SHOW_RESULT( close, err ); - - err = close( fd2 ); - if( err < 0 ) SHOW_RESULT( close, err ); - -} - -//========================================================================== - -void checkcwd( const char *cwd ) -{ - static char cwdbuf[PATH_MAX]; - char *ret; - - ret = getcwd( cwdbuf, sizeof(cwdbuf)); - if( ret == NULL ) SHOW_RESULT( getcwd, ret ); - - if( strcmp( cwdbuf, cwd ) != 0 ) - { - diag_printf( "cwdbuf %s cwd %s\n",cwdbuf, cwd ); - CYG_TEST_FAIL( "Current directory mismatch"); - } -} - -//========================================================================== -// main - -void yaffs6_main( CYG_ADDRESS id ) -{ - int err; - int existingdirents=-1; - cyg_bool mp2 = false; - int fd; - - char dirname[256]; - char filename1[256]; - char filename2[256]; - -#define NEW_FILENAME( fn, f ) \ -{ \ - fn[0]=0; \ - strcat(fn, dirname); \ - strcat(fn, "/"); \ - strcat(fn,f); \ -} - -#define NEW_FILENAME1( f ) NEW_FILENAME( filename1, f ) -#define NEW_FILENAME2( f ) NEW_FILENAME( filename2, f ) - - CYG_TEST_INIT(); - -#ifdef CYGDBG_INFRA_DIAG_CHECK_STRINGS - diag_printf("WARNING: CYGDBG_INFRA_DIAG_CHECK_STRINGS is defined, Cyrillic file names will not be printed.\n"); -#else - diag_printf("WARNING: Cyrillic file names printed in UTF-8 may not be readable in some environments.\n"); -#endif - - // -------------------------------------------------------------- - - err = mount( TEST_DEVICE, TEST_MOUNTPOINT, TEST_FSTYPE ); - if( err < 0 ) { - SHOW_RESULT( mount, err ); - CYG_TEST_FAIL_FINISH("yaffs6"); - } - - err = access( TEST_MOUNTPOINT TEST_DIRECTORY, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - if( err < 0 && errno == EACCES ) - { - diag_printf("<INFO>: create %s\n", - TEST_MOUNTPOINT TEST_DIRECTORY); - err = mkdir( TEST_MOUNTPOINT TEST_DIRECTORY, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - } - - err = chdir( TEST_MOUNTPOINT TEST_DIRECTORY ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - checkcwd( TEST_MOUNTPOINT TEST_DIRECTORY ); - - listdir( TEST_MOUNTPOINT TEST_DIRECTORY, true, -1, &existingdirents ); - - // -------------------------------------------------------------- - - dirname[0] = 0; - strcat(dirname, TEST_MOUNTPOINT ); - strcat(dirname, TEST_DIRECTORY ); - - // -------------------------------------------------------------- - - createfile( FOO, 20257 ); - checkfile( FOO ); - copyfile( FOO, FEE); - checkfile( FEE ); - comparefiles( FOO, FEE ); - - diag_printf("<INFO>: mkdir " BAR "\n"); - err = mkdir( BAR, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - listdir( dirname , true, existingdirents+3, NULL ); - - copyfile( FEE, BAR "/" FUM ); - checkfile( BAR "/" FUM ); - comparefiles( FEE, BAR "/" FUM ); - - diag_printf("<INFO>: cd " BAR "\n"); - err = chdir( BAR ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - NEW_FILENAME1( BAR ); - checkcwd( filename1 ); - - diag_printf("<INFO>: rename ../" FOO " " BUNDY "\n"); - err = rename( "../" FOO, BUNDY ); - if( err < 0 ) SHOW_RESULT( rename, err ); - - listdir( dirname, true, existingdirents+2, NULL ); - listdir( "." , true, 4, NULL ); - - checkfile( "../" BAR "/" BUNDY ); - comparefiles("../" FEE, BUNDY ); - -#if 1 - - // -------------------------------------------------------------- - // Check for some common error cases - - // First make some directories - diag_printf("<INFO>: mkdir " DOO "\n"); - err = mkdir( DOO, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - diag_printf("<INFO>: mkdir " FIE" \n"); - err = mkdir( FIE, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - diag_printf("<INFO>: mkdir " FIE "/" FOE "\n"); - err = mkdir( FIE "/" FOE, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - - diag_printf("<INFO>: rename " FUM " " DOO " -- should fail\n"); - err = rename( FUM, DOO ); - if( err < 0 && errno != EISDIR ) SHOW_RESULT( rename, err ); - - diag_printf("<INFO>: rename " DOO " " FUM " -- should fail\n"); - err = rename( DOO, FUM ); - if( err < 0 && errno != ENOTDIR ) SHOW_RESULT( rename, err ); - - diag_printf("<INFO>: rename " DOO " " FIE " -- should fail\n"); - err = rename( DOO, FIE ); - if( err < 0 && errno != EIO ) SHOW_RESULT( rename, err ); - - NEW_FILENAME1( XXXX "/" YYYY ) - diag_printf("<INFO>: rename " FUM " %s -- should fail\n",filename1); - err = rename( FUM, filename1 ); - if( err < 0 && errno != ENOENT ) SHOW_RESULT( rename, err ); - - diag_printf("<INFO>: rename " FUM " " FUM " -- should fail\n"); - err = rename( FUM, FUM ); - if( err < 0 ) SHOW_RESULT( rename, err ); - - diag_printf("<INFO>: unlink " FEE " -- should fail\n"); - err = unlink( FEE ); - if( err < 0 && errno != ENOENT ) SHOW_RESULT( unlink, err ); - - NEW_FILENAME1( BAR ); - diag_printf("<INFO>: rmdir %s -- should fail\n",filename1); - err = rmdir( filename1 ); - if( err < 0 && errno != ENOTEMPTY ) SHOW_RESULT( rmdir, err ); - - diag_printf("<INFO>: unlink %s -- should fail\n",filename1); - err = unlink( filename1 ); - if( err < 0 && errno != EISDIR ) SHOW_RESULT( unlink, err ); - - NEW_FILENAME1( BAR "/" FUM ); - diag_printf("<INFO>: rmdir %s -- should fail\n",filename1); - err = rmdir( filename1 ); - if( err < 0 && errno != ENOTDIR ) SHOW_RESULT( rmdir, err ); - - diag_printf("<INFO>: mkdir %s -- should fail\n",filename1); - err = mkdir( filename1, 0 ); - if( err < 0 && errno != EEXIST ) SHOW_RESULT( mkdir, err ); - - diag_printf("<INFO>: open " BUNDY " exclusive -- should fail\n"); - fd = open( BUNDY, O_WRONLY|O_CREAT|O_EXCL ); - if( fd < 0 && errno != EEXIST ) SHOW_RESULT( open, fd ); - - diag_printf("<INFO>: open %s -- should fail\n",dirname); - fd = open( dirname, O_WRONLY ); - if( fd < 0 && errno != EISDIR ) SHOW_RESULT( open, fd ); - - - listdir( dirname, true, existingdirents+2, NULL ); - listdir( "." , true, 6, NULL ); - - // -------------------------------------------------------------- - -#ifdef CLEANUP - - diag_printf("<INFO>: rename " FIE " " DOO "\n"); - err = rename( FIE, DOO ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: rmdir " DOO "/" FOE "\n"); - err = rmdir(DOO "/" FOE); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: rmdir " DOO "\n"); - err = rmdir(DOO); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink ../" FEE "\n"); - err = unlink( "../" FEE ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink " FUM "\n"); - err = unlink( FUM ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink ../" BAR "/" BUNDY "\n"); - err = unlink( "../" BAR "/" BUNDY ); - if( err < 0 ) SHOW_RESULT( unlink, err ); -#endif - - diag_printf("<INFO>: cd ..\n"); - err = chdir( ".." ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - checkcwd( dirname ); - -#ifdef CLEANUP - diag_printf("<INFO>: rmdir " BAR "\n"); - err = rmdir( BAR ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - listdir( dirname, false, existingdirents, NULL ); -#endif - - // -------------------------------------------------------------- - -#ifdef TEST_MOUNTPOINT2 - diag_printf("<INFO>: mount %s\n", TEST_MOUNTPOINT2); - err = mount( TEST_DEVICE2, TEST_MOUNTPOINT2, TEST_FSTYPE2 ); - - if( err == 0 ) - { - mp2 = true; - diag_printf("<INFO>: mount %s succeeded\n", TEST_MOUNTPOINT2); - err = access( TEST_MOUNTPOINT2 TEST_DIRECTORY2, F_OK ); - if( err < 0 && errno != EACCES ) SHOW_RESULT( access, err ); - - if( err < 0 && errno == EACCES ) - { - diag_printf("<INFO>: create %s\n", - TEST_MOUNTPOINT2 TEST_DIRECTORY2); - err = mkdir( TEST_MOUNTPOINT2 TEST_DIRECTORY2, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - } - - err = chdir( TEST_MOUNTPOINT2 TEST_DIRECTORY2 ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - checkcwd( TEST_MOUNTPOINT2 TEST_DIRECTORY2 ); - - dirname[0] = 0; - strcat(dirname, TEST_MOUNTPOINT2 ); - strcat(dirname, TEST_DIRECTORY2 ); - - } - else - { - mp2 = false; - diag_printf("<INFO>: mount %s failed, ", TEST_MOUNTPOINT2); - diag_printf("using %s instead\n", dirname ); - } - -#endif - - listdir( dirname , true, -1, &existingdirents); - - NEW_FILENAME1( TINKY ); - NEW_FILENAME2( LAALAA ); - - createfile( filename1, 4567 ); - copyfile( filename1, filename2 ); - checkfile( filename1); - checkfile( filename2); - comparefiles( filename1, filename2 ); - - diag_printf("<INFO>: cd %s\n",dirname); - err = chdir( dirname ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - checkcwd( dirname ); - - diag_printf("<INFO>: mkdir " NOONOO "\n"); - err = mkdir( NOONOO, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - listdir( dirname , true, existingdirents+3, NULL); - - diag_printf("<INFO>: cd " NOONOO "\n"); - err = chdir( NOONOO ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - - NEW_FILENAME1( NOONOO ); - checkcwd( filename1 ); - - createfile( TINKY, 6789 ); - checkfile( TINKY ); - - createfile( DIPSY, 34567 ); - checkfile( DIPSY ); - copyfile( DIPSY, PO ); - checkfile( PO ); - comparefiles( DIPSY, PO ); - - listdir( ".", true, 5, NULL ); - listdir( "..", true, existingdirents+3, NULL ); - - // -------------------------------------------------------------- - -#ifdef CLEANUP - diag_printf("<INFO>: unlink " TINKY "\n"); - err = unlink( TINKY ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink " DIPSY "\n"); - err = unlink( DIPSY ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink " PO "\n"); - err = unlink( PO ); - if( err < 0 ) SHOW_RESULT( unlink, err ); -#endif - - diag_printf("<INFO>: cd ..\n"); - err = chdir( ".." ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( dirname ); - -#ifdef CLEANUP - diag_printf("<INFO>: rmdir " NOONOO "\n"); - err = rmdir( NOONOO ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); -#endif - - // -------------------------------------------------------------- - - err = mkdir( XXXX, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - err = mkdir( XXXX "/" YYYY, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - err = mkdir( XXXX "/" YYYY "/" ZZZZ, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - err = mkdir( XXXX "/" YYYY "/" ZZZZ "/" WWWW, 0 ); - if( err < 0 ) SHOW_RESULT( mkdir, err ); - - NEW_FILENAME1( XXXX "/" YYYY "/" ZZZZ "/" WWWW ); - diag_printf("<INFO>: cd %s\n",filename1); - err = chdir( filename1 ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( filename1 ); - - NEW_FILENAME1( XXXX "/" YYYY "/" ZZZZ ); - diag_printf("<INFO>: cd ..\n"); - err = chdir( ".." ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( filename1 ); - - NEW_FILENAME1( XXXX "/" YYYY "/" ZZZZ ); - diag_printf("<INFO>: cd .\n"); - err = chdir( "." ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( filename1 ); - - NEW_FILENAME1( XXXX "/" YYYY ); - diag_printf("<INFO>: cd ../../" YYYY "\n"); - err = chdir( "../../" YYYY ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( filename1 ); - - diag_printf("<INFO>: cd ../..\n"); - err = chdir( "../.." ); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( dirname ); - - diag_printf("<INFO>: rmdir " XXXX "/" YYYY "/" ZZZZ "/" WWWW "\n"); - err = rmdir( XXXX "/" YYYY "/" ZZZZ "/" WWWW ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - diag_printf("<INFO>: rmdir "XXXX "/" YYYY "/" ZZZZ "\n"); - err = rmdir( XXXX "/" YYYY "/" ZZZZ ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - diag_printf("<INFO>: rmdir " XXXX "/" YYYY "\n"); - err = rmdir( XXXX "/" YYYY ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - diag_printf("<INFO>: rmdir "XXXX "\n"); - err = rmdir( XXXX ); - if( err < 0 ) SHOW_RESULT( rmdir, err ); - - // -------------------------------------------------------------- - - checkcwd( dirname ); - -#ifdef CLEANUP - diag_printf("<INFO>: unlink "TINKY "\n"); - err = unlink( TINKY ); - if( err < 0 ) SHOW_RESULT( unlink, err ); - - diag_printf("<INFO>: unlink " LAALAA" \n"); - err = unlink( LAALAA ); - if( err < 0 ) SHOW_RESULT( unlink, err ); -#endif - - // -------------------------------------------------------------- - - diag_printf("<INFO>: cd %s\n", TEST_MOUNTPOINT TEST_DIRECTORY); - err = chdir( TEST_MOUNTPOINT TEST_DIRECTORY); - if( err < 0 ) SHOW_RESULT( chdir, err ); - checkcwd( TEST_MOUNTPOINT TEST_DIRECTORY ); - - listdir( ".", true, -1, NULL ); - -#ifdef TEST_MOUNTPOINT2 - if( mp2 ) - { - diag_printf("<INFO>: umount %s\n",TEST_MOUNTPOINT2); - err = umount( TEST_MOUNTPOINT2 ); - if( err < 0 ) SHOW_RESULT( umount, err ); - } -#endif - - // -------------------------------------------------------------- - -#if 0 - maxfile("file.max"); - - listdir( "/", true, -1, NULL ); - - diag_printf("<INFO>: unlink file.max\n"); - err = unlink( "file.max" ); - if( err < 0 ) SHOW_RESULT( unlink, err ); -#endif - - // -------------------------------------------------------------- - -#endif - diag_printf("<INFO>: cd /\n"); - err = chdir( "/" ); - if( err == 0 ) - { - checkcwd( "/" ); - - diag_printf("<INFO>: umount %s\n",TEST_MOUNTPOINT); - err = umount( TEST_MOUNTPOINT ); - if( err < 0 ) SHOW_RESULT( umount, err ); - } - - diag_printf("<INFO>: syncing\n"); - err = cyg_fs_setinfo(TEST_MOUNTPOINT, FS_INFO_SYNC, 0, 0); - if (err != 0) SHOW_RESULT(sync, err); - - CYG_TEST_PASS_FINISH("yaffs6"); -} - -// ------------------------------------------------------------------------- - -#include <cyg/kernel/kapi.h> - -static cyg_handle_t thread_handle; -static cyg_thread thread; -static char stack[CYGNUM_HAL_STACK_SIZE_TYPICAL+1024*4]; - -externC void -cyg_start( void ) -{ - cyg_thread_create(3, // Priority - just a number - yaffs6_main, // entry - 0, // index - 0, // no name - &stack[0], // Stack - sizeof(stack), // Size - &thread_handle, // Handle - &thread // Thread data structure - ); - cyg_thread_resume(thread_handle); - - cyg_scheduler_start(); -} - -#else // CYGPKG_KERNEL - -#include <cyg/infra/testcase.h> - -externC void cyg_start(void) -{ - CYG_TEST_NA("Needs CYGPKG_KERNEL"); -} - -#endif - -// ------------------------------------------------------------------------- -// EOF yaffs6.c