ecos-v3_0-branch: packages/devs/eth/cl/cs8900a/current/src/if

annotate packages/devs/eth/cl/cs8900a/current/src/if_cs8900a.c @ 2839:e5408a8adcb7

* src/if_cs8900a.c: Fixed interrupt hooking block in cs8900a_init() to prevent assertion fail on cyg_interrupt_attach() when interrupt is not used.

author	asl
date	Mon, 02 Mar 2009 21:18:07 +0000
parents	74dbf4c3f2e1
children

rev	line source
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	1 //==========================================================================
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	2 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	3 // dev/if_cs8900a.c
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	4 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	5 // Device driver for Cirrus Logic CS8900A ethernet controller
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	6 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	7 //==========================================================================
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	8 // ####ECOSGPLCOPYRIGHTBEGIN####
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	9 // -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	10 // This file is part of eCos, the Embedded Configurable Operating System.
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	12 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	13 // eCos is free software; you can redistribute it and/or modify it under
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	14 // the terms of the GNU General Public License as published by the Free
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	15 // Software Foundation; either version 2 or (at your option) any later
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	16 // version.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	17 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	18 // eCos is distributed in the hope that it will be useful, but WITHOUT
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	19 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	21 // for more details.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	22 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	23 // You should have received a copy of the GNU General Public License
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	24 // along with eCos; if not, write to the Free Software Foundation, Inc.,
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	25 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	26 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	27 // As a special exception, if other files instantiate templates or use
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	28 // macros or inline functions from this file, or you compile this file
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	29 // and link it with other works to produce a work based on this file,
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	30 // this file does not by itself cause the resulting work to be covered by
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	31 // the GNU General Public License. However the source code for this file
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	32 // must still be made available in accordance with section (3) of the GNU
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	33 // General Public License v2.
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	34 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	35 // This exception does not invalidate any other reasons why a work based
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	36 // on this file might be covered by the GNU General Public License.
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	37 // -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2660 diff changeset	38 // ####ECOSGPLCOPYRIGHTEND####
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	39 //==========================================================================
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	40 //#####DESCRIPTIONBEGIN####
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	41 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	42 // Author(s): gthomas
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	43 // Contributors: gthomas, jskov
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	44 // Date: 2001-11-02
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	45 // Purpose:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	46 // Description: Driver for CS8900 ethernet controller
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	47 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	48 // Note: Platform can define CYGSEM_DEVS_ETH_CL_CS8900A_NOINTS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	49 // to get a timer thread polling instead of interupt based
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	50 // operation.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	51 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	52 // Note: Driver will need some changes to support multiple instances
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	53 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	54 //####DESCRIPTIONEND####
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	55 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	56 //==========================================================================
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	57
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	58 #include <pkgconf/system.h>
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	59 #ifdef CYGPKG_KERNEL
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	60 #include <cyg/kernel/kapi.h>
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	61 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	62 #include <pkgconf/io_eth_drivers.h>
219 ae8511176102 Fix CDL dependencies for stand-alone/system operation. gthomas parents: 212 diff changeset	63
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	64 #include <cyg/infra/cyg_type.h>
1681 67ee34ead3f4 * src/if_cs8900a.c: Added missing include of cyg_ass.h. asl parents: 1659 diff changeset	65 #include <cyg/infra/cyg_ass.h>
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	66 #include <cyg/hal/hal_arch.h>
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	67 #include <cyg/hal/hal_intr.h>
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	68 #include <cyg/hal/hal_endian.h>
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	69 #include <cyg/infra/diag.h>
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	70 #include <cyg/hal/drv_api.h>
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	71 #undef __ECOS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	72 #define __ECOS
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	73 #include <cyg/io/eth/eth_drv.h>
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	74 #include <cyg/io/eth/netdev.h>
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	75
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	76 #include <cyg/io/cs8900.h>
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	77
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	78 #define __WANT_DEVS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	79 #include CYGDAT_DEVS_ETH_CL_CS8900A_INL
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	80 #undef __WANT_DEVS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	81
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	82 // NOINTS operation only relevant when the NET package is loaded
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	83 #if !defined(CYGPKG_NET) \|\| !defined(CYGPKG_KERNEL)
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	84 # undef CYGSEM_DEVS_ETH_CL_CS8900A_NOINTS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	85 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	86
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	87 #ifdef CYGSEM_DEVS_ETH_CL_CS8900A_NOINTS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	88 #define STACK_SIZE CYGNUM_HAL_STACK_SIZE_MINIMUM
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	89 static char cs8900a_fake_int_stack[STACK_SIZE];
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	90 static cyg_thread cs8900a_fake_int_thread_data;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	91 static cyg_handle_t cs8900a_fake_int_thread_handle;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	92 static void cs8900a_fake_int(cyg_addrword_t);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	93 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	94
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	95 #ifdef CYGDBG_IO_ETH_DRIVERS_DEBUG
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	96 extern int cyg_io_eth_net_debug;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	97 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	98
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	99 static void cs8900a_poll(struct eth_drv_sc *sc);
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	100 #ifdef CYGINT_IO_ETH_INT_SUPPORT_REQUIRED
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	101 // This ISR is called when the ethernet interrupt occurs
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	102 static int
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	103 cs8900a_isr(cyg_vector_t vector, cyg_addrword_t data, HAL_SavedRegisters *regs)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	104 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	105 cs8900a_priv_data_t* cpd = (cs8900a_priv_data_t *)data;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	106 cyg_drv_interrupt_mask(cpd->interrupt);
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	107 cyg_drv_interrupt_acknowledge(cpd->interrupt);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	108 return (CYG_ISR_HANDLED\|CYG_ISR_CALL_DSR); // Run the DSR
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	109 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	110
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	111 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	112 cs8900a_dsr(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	113 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	114 // This conditioning out is necessary because of explicit calls to this
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	115 // DSR - which would not ever be called in the case of a polled mode
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	116 // usage ie. in RedBoot.
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	117 #ifdef CYGINT_IO_ETH_INT_SUPPORT_REQUIRED
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	118 cs8900a_priv_data_t* cpd = (cs8900a_priv_data_t *)data;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	119 struct cyg_netdevtab_entry ndp = (struct cyg_netdevtab_entry )(cpd->tab);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	120 struct eth_drv_sc sc = (struct eth_drv_sc )(ndp->device_instance);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	121
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	122 DEBUG_FUNCTION();
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	123
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	124 // but here, it must be a *sc:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	125 eth_drv_dsr( vector, count, (cyg_addrword_t)sc );
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	126 #else
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	127 # ifndef CYGPKG_REDBOOT
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	128 # error Empty CS8900A ethernet DSR is compiled. Is this what you want?
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	129 # endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	130 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	131 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	132 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	133
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	134 // The deliver function (ex-DSR) handles the ethernet [logical] processing
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	135 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	136 cs8900a_deliver(struct eth_drv_sc *sc)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	137 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	138 cs8900a_poll(sc);
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	139 #ifdef CYGINT_IO_ETH_INT_SUPPORT_REQUIRED
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	140 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	141 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	142 // Allow interrupts to happen again
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	143 cyg_drv_interrupt_unmask(cpd->interrupt);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	144 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	145 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	146 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	147
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	148 static int
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	149 cs8900a_int_vector(struct eth_drv_sc *sc)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	150 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	151 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	152 return (cpd->interrupt);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	153 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	154
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	155 static bool
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	156 cs8900a_init(struct cyg_netdevtab_entry *tab)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	157 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	158 struct eth_drv_sc sc = (struct eth_drv_sc )tab->device_instance;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	159 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	160 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	161 cyg_uint16 chip_type, chip_rev, chip_status;
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	162 cyg_uint16 i;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	163 long timeout = 500000;
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	164 cyg_bool esa_configured = false;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	165
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	166 cpd->tab = tab;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	167
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	168 CYGHWR_CL_CS8900A_PLF_INIT(cpd);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	169
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	170 #ifdef CYGINT_IO_ETH_INT_SUPPORT_REQUIRED
2839 e5408a8adcb7 * src/if_cs8900a.c: Fixed interrupt hooking block in cs8900a_init() to asl parents: 2729 diff changeset	171 # ifdef CYGSEM_DEVS_ETH_CL_CS8900A_NOINTS
e5408a8adcb7 * src/if_cs8900a.c: Fixed interrupt hooking block in cs8900a_init() to asl parents: 2729 diff changeset	172 // The olpce2994 target uses 8-bit, non-interrupt driven mode for CS8900A.
e5408a8adcb7 * src/if_cs8900a.c: Fixed interrupt hooking block in cs8900a_init() to asl parents: 2729 diff changeset	173 cyg_thread_create(1, // Priority
e5408a8adcb7 * src/if_cs8900a.c: Fixed interrupt hooking block in cs8900a_init() to asl parents: 2729 diff changeset	174 cs8900a_fake_int, // entry
e5408a8adcb7 * src/if_cs8900a.c: Fixed interrupt hooking block in cs8900a_init() to asl parents: 2729 diff changeset	175 (cyg_addrword_t)sc,// entry parameter
e5408a8adcb7 * src/if_cs8900a.c: Fixed interrupt hooking block in cs8900a_init() to asl parents: 2729 diff changeset	176 "CS8900 int", // Name
e5408a8adcb7 * src/if_cs8900a.c: Fixed interrupt hooking block in cs8900a_init() to asl parents: 2729 diff changeset	177 &cs8900a_fake_int_stack[0], // Stack
e5408a8adcb7 * src/if_cs8900a.c: Fixed interrupt hooking block in cs8900a_init() to asl parents: 2729 diff changeset	178 STACK_SIZE, // Size
e5408a8adcb7 * src/if_cs8900a.c: Fixed interrupt hooking block in cs8900a_init() to asl parents: 2729 diff changeset	179 &cs8900a_fake_int_thread_handle, // Handle
e5408a8adcb7 * src/if_cs8900a.c: Fixed interrupt hooking block in cs8900a_init() to asl parents: 2729 diff changeset	180 &cs8900a_fake_int_thread_data // Thread data structure
e5408a8adcb7 * src/if_cs8900a.c: Fixed interrupt hooking block in cs8900a_init() to asl parents: 2729 diff changeset	181 );
e5408a8adcb7 * src/if_cs8900a.c: Fixed interrupt hooking block in cs8900a_init() to asl parents: 2729 diff changeset	182 cyg_thread_resume(cs8900a_fake_int_thread_handle); // Start it
e5408a8adcb7 * src/if_cs8900a.c: Fixed interrupt hooking block in cs8900a_init() to asl parents: 2729 diff changeset	183 # else
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	184 // Initialize environment, setup interrupt handler
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	185 cyg_drv_interrupt_create(cpd->interrupt,
2107 7a0284a514e9 * include/cs8900a.h: asl parents: 1971 diff changeset	186 cpd->priority,
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	187 (cyg_addrword_t)cpd, // Data item passed to interrupt handler
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	188 (cyg_ISR_t *)cs8900a_isr,
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	189 (cyg_DSR_t *)cs8900a_dsr,
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	190 &cpd->interrupt_handle,
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	191 &cpd->interrupt_object);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	192 cyg_drv_interrupt_attach(cpd->interrupt_handle);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	193 cyg_drv_interrupt_acknowledge(cpd->interrupt);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	194 cyg_drv_interrupt_unmask(cpd->interrupt);
2839 e5408a8adcb7 * src/if_cs8900a.c: Fixed interrupt hooking block in cs8900a_init() to asl parents: 2729 diff changeset	195 # endif // CYGSEM_DEVS_ETH_CL_CS8900A_NOINTS
e5408a8adcb7 * src/if_cs8900a.c: Fixed interrupt hooking block in cs8900a_init() to asl parents: 2729 diff changeset	196 #endif // CYGINT_IO_ETH_INT_SUPPORT_REQUIRED
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	197
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	198 // Read controller ID - the first is a dummy read, since (on some
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	199 // platforms) the first access to the controller seems to skip the
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	200 // MSB 8 bits.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	201 get_reg(base, PP_ChipID);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	202 chip_type = get_reg(base, PP_ChipID);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	203 chip_rev = get_reg(base, PP_ChipRev);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	204 #if DEBUG & 8
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	205 diag_printf("CS8900A[%p] - type: 0x%04x, rev: 0x%04x\n", (void *)base, chip_type, chip_rev);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	206 #endif
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	207 if (chip_type != PP_ChipID_CL) {
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	208 #if DEBUG & 8
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	209 diag_printf("CS8900 - invalid type (0x%04x), must be 0x630e\n", chip_type);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	210 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	211 return false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	212 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	213
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	214 CYGHWR_CL_CS8900A_PLF_RESET(base);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	215 put_reg(base, PP_SelfCtl, PP_SelfCtl_Reset); // Reset chip
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	216
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	217 CYGHWR_CL_CS8900A_PLF_POST_RESET(base);
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	218
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	219 while ((get_reg(base, PP_SelfStat) & PP_SelfStat_InitD) == 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	220 if (--timeout <= 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	221 #if DEBUG & 8
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	222 diag_printf("CS8900 didn't reset - abort!\n");
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	223 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	224 return false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	225 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	226 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	227
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	228 chip_status = get_reg(base, PP_SelfStat);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	229 #if DEBUG & 8
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	230 diag_printf("CS8900 - status: 0x%04x (%sEEPROM present)\n", chip_status,
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	231 chip_status & PP_SelfStat_EEPROM ? "" : "no ");
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	232 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	233
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	234
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	235 // Disable reception whilst finding the ESA
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	236 put_reg(base, PP_LineCTL, 0 );
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	237 // Find ESA - check possible sources in sequence and stop when
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	238 // one provides the ESA:
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	239 // RedBoot option (via provide_esa)
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	240 // Compile-time configuration
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	241 // EEPROM
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	242 // <fail configuration of device>
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	243 if (NULL != cpd->provide_esa) {
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	244 esa_configured = cpd->provide_esa(cpd);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	245 # if DEBUG & 8
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	246 if (esa_configured)
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	247 diag_printf("Got ESA from RedBoot option\n");
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	248 # endif
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	249 }
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	250 if (!esa_configured && cpd->hardwired_esa) {
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	251 // ESA is already set in cpd->esa[]
1971 915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	252 #if DEBUG & 8
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	253 diag_printf("Got hardcoded ESA\n");
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	254 #endif
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	255 esa_configured = true;
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	256 }
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	257 if (!esa_configured && (chip_status & PP_SelfStat_EEPROM)) {
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	258 // Get ESA from EEPROM - via the PP_IA registers
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	259 cyg_uint16 esa_word;
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	260 for (i = 0; i < sizeof(cpd->esa); i += 2) {
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	261 #ifndef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	262 esa_word = get_reg(base, PP_IA+i);
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	263 cpd->esa[i] = (esa_word & 0xFF);
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	264 cpd->esa[i+1] = (esa_word >> 8) & 0xFF;
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	265 #else
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	266 esa_word = get_reg(base, PP_IA+CYG_SWAP16(i));
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	267 cpd->esa[i+1] = (esa_word & 0xFF);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	268 cpd->esa[i] = (esa_word >> 8) & 0xFF;
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	269 #endif
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	270 }
1971 915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	271 #if DEBUG & 8
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	272 diag_printf("Got EEPROM ESA\n");
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	273 #endif
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	274 esa_configured = true;
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	275 }
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	276 if (!esa_configured) {
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	277 # if DEBUG & 8
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	278 diag_printf("CS8900 - no EEPROM, static ESA or RedBoot config option.\n");
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	279 # endif
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	280 return false;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	281 }
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	282
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	283 // Tell the chip what ESA to use
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	284 for (i = 0; i < sizeof(cpd->esa); i += 2) {
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	285 #ifndef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	286 put_reg(base, PP_IA+i, cpd->esa[i] \| (cpd->esa[i+1] << 8));
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	287 #else
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	288 put_reg(base, PP_IA+CYG_SWAP16(i), cpd->esa[i+1] \| (cpd->esa[i] << 8));
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	289 #endif
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	290 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	291 // Set logical address mask
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	292 for (i = 0; i < 8; i += 2) {
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	293 #ifndef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	294 put_reg(base, PP_LAF+i, 0xFFFF);
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	295 #else
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	296 put_reg(base, PP_LAF+CYG_SWAP16(i), 0xFFFF);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	297 #endif
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	298 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	299 # if DEBUG & 8
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	300 diag_printf("ESA %02x:%02x:%02x:%02x:%02x:%02x\n",
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	301 cpd->esa[0], cpd->esa[1], cpd->esa[2],
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	302 cpd->esa[3], cpd->esa[4], cpd->esa[5]);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	303 # endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	304
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	305 // Initialize upper level driver
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	306 (sc->funs->eth_drv->init)(sc, cpd->esa);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	307
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	308 return true;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	309 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	310
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	311 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	312 cs8900a_stop(struct eth_drv_sc *sc)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	313 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	314 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	315 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	316
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	317 put_reg(base, PP_LineCTL, 0);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	318 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	319
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	320 // This function is called to "start up" the interface. It may be called
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	321 // multiple times, even when the hardware is already running. It will be
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	322 // called whenever something "hardware oriented" changes and should leave
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	323 // the hardware ready to send/receive packets.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	324 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	325 cs8900a_start(struct eth_drv_sc sc, cyg_uint8 esa, int flags)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	326 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	327 cyg_uint16 stat;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	328 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	329 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	330
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	331 put_reg(base, PP_BusCtl, PP_BusCtl_MemoryE); // Disable interrupts, memory mode
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	332 put_reg(base, PP_IntReg, PP_IntReg_IRQ0); // Only possibility
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	333 put_reg(base, PP_RxCFG, PP_RxCFG_RxOK \| PP_RxCFG_CRC \|
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	334 PP_RxCFG_RUNT \| PP_RxCFG_EXTRA);
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	335 cpd->rxmode = PP_RxCTL_RxOK \| PP_RxCTL_Broadcast \| PP_RxCTL_IA;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	336 put_reg(base, PP_RxCTL, cpd->rxmode);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	337 put_reg(base, PP_TxCFG, PP_TxCFG_TxOK \| PP_TxCFG_Collision \|
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	338 PP_TxCFG_CRS \| PP_TxCFG_SQE \| PP_TxCFG_Late \|
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	339 PP_TxCFG_Jabber \| PP_TxCFG_16Collisions);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	340 put_reg(base, PP_BufCFG, PP_BufCFG_TxRDY \| PP_BufCFG_TxUE \| PP_BufCFG_RxMiss \|
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	341 PP_BufCFG_TxCol \| PP_BufCFG_Miss \| PP_BufCFG_SWI);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	342 put_reg(base, PP_IntReg, PP_IntReg_IRQ0); // Only possibility
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	343 put_reg(base, PP_LineCTL, PP_LineCTL_Rx \| PP_LineCTL_Tx);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	344 // Clear Interrupt Status Queue before enabling interrupts
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	345 do {
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	346 CS_IN(cpd->base, CS8900A_ISQ, stat);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	347 } while (stat != 0) ;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	348 cpd->txbusy = false;
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	349 #ifndef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_8BIT
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	350 put_reg(base, PP_BusCtl, PP_BusCtl_EnableIRQ);
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	351 #endif
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	352 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	353
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	354 // This routine is called to perform special "control" opertions
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	355 static int
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	356 cs8900a_control(struct eth_drv_sc sc, unsigned long key, void data, int data_length)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	357 {
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	358 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	359 cyg_addrword_t base = cpd->base;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	360 struct eth_drv_mc_list *mc_list = data;
1971 915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	361 unsigned char esa = (unsigned char )data;
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	362 int i;
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	363
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	364 switch (key) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	365 case ETH_DRV_SET_MAC_ADDRESS:
1971 915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	366 #if 9 & DEBUG
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	367 diag_printf("CS8900A - set ESA: %02x:%02x:%02x:%02x:%02x:%02x\n",
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	368 esa[0], esa[1], esa[2],
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	369 esa[3], esa[4], esa[5] );
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	370 #if !defined(CYGSEM_DEVS_ETH_CL_CS8900A_WRITE_EEPROM) \|\| !defined(CS8900A_PROGRAM_EEPROM)
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	371 diag_printf("* PERMANENT EEPROM WRITE NOT ENABLED *\n");
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	372 #endif
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	373 #endif // DEBUG
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	374
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	375 // We can write the MAC address into the interface info,
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	376 // and the chip registers no problem.
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	377 for ( i = 0; i < sizeof(cpd->esa); i++ )
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	378 cpd->esa[i] = esa[i];
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	379 for (i = 0; i < sizeof(cpd->esa); i += 2) {
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	380 cyg_uint16 reg = cpd->esa[i] \| (cpd->esa[i+1] << 8);
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	381 put_reg(cpd->base, PP_IA+i, reg );
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	382 }
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	383 #if defined(CYGSEM_DEVS_ETH_CL_CS8900A_WRITE_EEPROM) && defined(CS8900A_PROGRAM_EEPROM)
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	384 if (CS8900A_PROGRAM_EEPROM(cpd))
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	385 return 1;
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	386 else
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	387 return 0;
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	388 #elif defined(CYGSEM_DEVS_ETH_CL_CS8900A_WRITE_EEPROM) && !defined(CS8900A_PROGRAM_EEPROM)
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	389 /* WRITE_EEPROM requested, but no PROGRAM_EEPROM provided */
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	390 return 1;
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	391 #else /* !CYGSEM_DEVS_ETH_CL_CS8900A_WRITE_EEPROM - No need to write EEPROM */
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	392 return 0;
1971 915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	393 #endif
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	394
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	395 #ifdef ETH_DRV_GET_MAC_ADDRESS
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	396 case ETH_DRV_GET_MAC_ADDRESS:
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	397 // Extract the MAC address that is in the chip, and tell the
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	398 // system about it.
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	399 for (i = 0; i < sizeof(cpd->esa); i += 2) {
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	400 unsigned short z = get_reg(cpd->base, PP_IA+i/2 );
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	401 esa[i] = (unsigned char)(0xff & z);
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	402 esa[i+1] = (unsigned char)(0xff & (z >> 8));
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	403 }
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	404 return 0;
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	405 #endif
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	406 case ETH_DRV_SET_MC_LIST:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	407 case ETH_DRV_SET_MC_ALL:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	408 // Note: this code always accepts all multicast addresses if any
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	409 // are desired. It would be possible to accept a subset by adjusting
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	410 // the Logical Address Filter (LAF), but that would require scanning
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	411 // this list and building a suitable mask.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	412 if (mc_list->len) {
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	413 cpd->rxmode \|= PP_RxCTL_Multicast;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	414 } else {
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	415 cpd->rxmode &= ~PP_RxCTL_Multicast;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	416 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	417 put_reg(base, PP_RxCTL, cpd->rxmode); // When is it safe to do this?
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	418 return 0;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	419 default:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	420 return 1;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	421 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	422 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	423 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	424
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	425 // This routine is called to see if it is possible to send another packet.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	426 // It will return non-zero if a transmit is possible, zero otherwise.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	427 static int
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	428 cs8900a_can_send(struct eth_drv_sc *sc)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	429 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	430 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	431 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	432 cyg_uint16 stat;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	433
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	434 stat = get_reg(base, PP_LineStat);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	435 if ((stat & PP_LineStat_LinkOK) == 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	436 return false; // Link not connected
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	437 }
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	438 #ifdef CYGPKG_KERNEL
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	439 // Horrible hack!
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	440 if (cpd->txbusy) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	441 cyg_tick_count_t now = cyg_current_time();
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	442 if ((now - cpd->txstart) > 25) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	443 // 250ms is more than enough to transmit one frame
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	444 #if DEBUG & 1
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	445 diag_printf("CS8900: Tx interrupt lost\n");
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	446 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	447 cpd->txbusy = false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	448 // Free up the buffer (with error indication)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	449 (sc->funs->eth_drv->tx_done)(sc, cpd->txkey, 1);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	450 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	451 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	452 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	453 return (cpd->txbusy == false);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	454 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	455
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	456 // This routine is called to send data to the hardware.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	457 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	458 cs8900a_send(struct eth_drv_sc sc, struct eth_drv_sg sg_list, int sg_len,
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	459 int total_len, unsigned long key)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	460 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	461 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	462 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	463 int i;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	464 int len;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	465 cyg_uint8 *data;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	466 cyg_uint16 saved_data = 0, *sdata;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	467 cyg_uint16 stat;
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	468 bool force_coping_by_byte;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	469 bool odd_byte = false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	470
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	471 // Mark xmitter busy
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	472 cpd->txbusy = true;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	473 cpd->txkey = key;
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	474 #ifdef CYGPKG_KERNEL
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	475 cpd->txstart = cyg_current_time();
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	476 #endif
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	477
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	478 // Start the xmit sequence
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	479 #ifdef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	480 total_len = CYG_SWAP16(total_len);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	481 #endif
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	482
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	483 #ifdef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_8BIT
b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	484 force_coping_by_byte = true;
b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	485 #else
b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	486 force_coping_by_byte = false;
b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	487 #endif
b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	488
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	489 // The hardware indicates that there are options as to when the actual
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	490 // packet transmission will start wrt moving of data into the transmit
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	491 // buffer. However, impirical results seem to indicate that if the
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	492 // packet is large and transmission is allowed to start before the
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	493 // entire packet has been pushed into the buffer, the hardware gets
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	494 // confused and the packet is lost, along with a "lost" Tx interrupt.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	495 // This may be a case of the copy loop below being interrupted, e.g.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	496 // a system timer interrupt, and the hardware getting unhappy that
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	497 // not all of the data was provided before the transmission should
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	498 // have completed (i.e. buffer underrun).
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	499 // For now, the solution is to not allow this overlap.
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	500 //CS_OUT(cpd->base, CS8900A_TxCMD, PP_TxCmd_TxStart_5)
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	501
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	502 // Start only when all data sent to chip
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	503 CS_OUT(cpd->base, CS8900A_TxCMD, PP_TxCmd_TxStart_Full);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	504
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	505 CS_OUT(cpd->base, CS8900A_TxLEN, total_len);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	506 // Wait for controller ready signal
2428 c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	507 {
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	508 // add timeout per cs8900a bugzilla report 1000281 */
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	509 int timeout = 1000;
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	510
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	511 do {
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	512 stat = get_reg(base, PP_BusStat);
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	513 #if DEBUG & 1
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	514 if( stat & PP_BusStat_TxBid )
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	515 diag_printf( "cs8900a_send: Bid error!\n" );
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	516 #endif
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	517 } while (!(stat & PP_BusStat_TxRDY) && --timeout);
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	518
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	519 if( !timeout ) {
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	520 // we might as well just return, since if we write the data it will
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	521 // just get thrown away
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	522 return;
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	523 }
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	524 }
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	525
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	526 // Put data into buffer
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	527 for (i = 0; i < sg_len; i++) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	528 data = (cyg_uint8 *)sg_list[i].buf;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	529 len = sg_list[i].len;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	530
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	531 if (len > 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	532 /* Finish the last word. */
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	533 if (odd_byte) {
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	534 // This new byte must get on the bus _after_ the last saved odd byte, it therefore
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	535 // belongs in the MSB of the CS8900a
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	536 #ifdef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	537 saved_data \|= *data++;
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	538 #else
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	539 saved_data \|= ((cyg_uint16)*data++) << 8;
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	540 #endif
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	541 CS_OUT(cpd->base, CS8900A_RTDATA, saved_data);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	542 len--;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	543 odd_byte = false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	544 }
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	545 if (!force_coping_by_byte && ((CYG_ADDRESS)data & 0x1) == 0) {
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	546 /* Aligned on 16-bit boundary, so output contiguous words. */
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	547 sdata = (cyg_uint16 *)data;
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	548 while (len > 1) {
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	549 // Make sure data get on the bus in Big Endian format
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	550 #if((CYG_BYTEORDER == CYG_MSBFIRST) && defined(CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED) \|\| \
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	551 (CYG_BYTEORDER == CYG_LSBFIRST) && !defined(CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED ))
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	552 CS_OUT(cpd->base, CS8900A_RTDATA, *sdata++);
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	553 #else
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	554 CS_OUT(cpd->base, CS8900A_RTDATA, CYG_SWAP16(*sdata++));
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	555 #endif
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	556 len -= sizeof(cyg_uint16);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	557 }
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	558 data = (cyg_uint8 *)sdata;
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	559 } else {
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	560 /* Not 16-bit aligned, so byte copy */
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	561 while (len > 1) {
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	562 saved_data = (cyg_uint16)*data++; // reuse saved_data
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	563 // Make sure data get on the bus in Big Endian format, the first byte belongs in the
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	564 // LSB of the CS8900A
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	565 #ifdef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	566 saved_data = ((cyg_uint16)*data++) \| (saved_data << 8);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	567 #else
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	568 saved_data \|= ((cyg_uint16)*data++) << 8;
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	569 #endif
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	570 CS_OUT(cpd->base, CS8900A_RTDATA, saved_data);
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	571 len -= sizeof(cyg_uint16);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	572 }
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	573 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	574 /* Save last byte, if necessary. */
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	575 if (len == 1) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	576 saved_data = (cyg_uint16)*data;
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	577 // This _last_ byte must get on the bus _first_, it therefore belongs in the LSB of
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	578 // the CS8900a
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	579 #ifdef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
1397 9c818dd5d9fa Updates for EC555 targets - from Bob Koninckx gthomas parents: 941 diff changeset	580 saved_data = (saved_data << 8);
9c818dd5d9fa Updates for EC555 targets - from Bob Koninckx gthomas parents: 941 diff changeset	581 #endif
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	582 odd_byte = true;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	583 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	584 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	585 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	586 if (odd_byte) {
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	587 CS_OUT(cpd->base, CS8900A_RTDATA, saved_data);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	588 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	589 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	590
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	591 // This function is called when a packet has been received. It's job is
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	592 // to prepare to unload the packet from the hardware. Once the length of
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	593 // the packet is known, the upper layer of the driver can be told. When
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	594 // the upper layer is ready to unload the packet, the internal function
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	595 // 'cs8900a_recv' will be called to actually fetch it from the hardware.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	596 static void
1659 e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	597 cs8900a_RxEvent(struct eth_drv_sc *sc, int stat)
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	598 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	599 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	600 cyg_addrword_t base = cpd->base;
1659 e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	601 cyg_uint16 len;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	602
1659 e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	603 if(stat & PP_RxCFG_RxOK) {
e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	604 // Only start reading a message if one has been received
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	605 #ifndef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_8BIT
b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	606 CS_IN(base, CS8900A_RTDATA, stat);
b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	607 CS_IN(base, CS8900A_RTDATA, len);
b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	608 #else
b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	609 // From AN181 Using the Crystal CS8900A in 8-bit mode.
b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	610 // Note: it is very important to read the RxStatus and RxLength high
b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	611 // order byte first.
b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	612 stat = (volatile CYG_BYTE )(base + CS8900A_RTDATA + 1) << 8;
b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	613 stat \|= (volatile CYG_BYTE )(base + CS8900A_RTDATA);
b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	614 len = (volatile CYG_BYTE )(base + CS8900A_RTDATA + 1) << 8;
b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	615 len \|= (volatile CYG_BYTE )(base + CS8900A_RTDATA);
b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	616 #endif
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	617
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	618 #ifdef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
1659 e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	619 len = CYG_SWAP16(len);
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	620 #endif
1659 e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	621
e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	622 CYG_ASSERT(len > 0, "Zero length ethernet frame received");
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	623
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	624 #ifdef CYGDBG_IO_ETH_DRIVERS_DEBUG
1659 e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	625 if (cyg_io_eth_net_debug) {
e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	626 diag_printf("RxEvent - stat: %x, len: %d\n", stat, len);
e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	627 }
e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	628 #endif
e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	629 (sc->funs->eth_drv->recv)(sc, len);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	630 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	631 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	632
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	633 // This function is called as a result of the "eth_drv_recv()" call above.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	634 // It's job is to actually fetch data for a packet from the hardware once
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	635 // memory buffers have been allocated for the packet. Note that the buffers
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	636 // may come in pieces, using a scatter-gather list. This allows for more
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	637 // efficient processing in the upper layers of the stack.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	638 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	639 cs8900a_recv(struct eth_drv_sc sc, struct eth_drv_sg sg_list, int sg_len)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	640 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	641 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	642 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	643 int i, mlen;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	644 cyg_uint16 *data, val;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	645 cyg_uint8 *cp, cval;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	646
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	647 for (i = 0; i < sg_len; i++) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	648 data = (cyg_uint16 *)sg_list[i].buf;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	649 mlen = sg_list[i].len;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	650 while (mlen >= sizeof(*data)) {
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	651 CS_IN(base, CS8900A_RTDATA, val);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	652 if (data) {
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	653 #if((CYG_BYTEORDER == CYG_MSBFIRST) && defined(CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED) \|\| \
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	654 (CYG_BYTEORDER == CYG_LSBFIRST) && !defined(CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED ))
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	655 *data++ = val;
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	656 #else
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	657 *data++ = CYG_SWAP16(val);
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	658 #endif
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	659 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	660 mlen -= sizeof(*data);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	661 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	662 if (mlen) {
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	663 CS_IN(base, CS8900A_RTDATA, val);
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	664 #ifndef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	665 // last odd byte will be in the LSB
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	666 cval = (cyg_uint8)(val);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	667 #elif(CYG_BYTEORDER == CYG_MSBFIRST)
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	668 // last odd byte will be in the MSB
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	669 cval = (cyg_uint8)(val >> 8);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	670 #endif
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	671 cval &= 0xff;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	672 if ((cp = (cyg_uint8 *)data) != 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	673 *cp = cval;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	674 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	675 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	676 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	677 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	678
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	679 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	680 cs8900a_TxEvent(struct eth_drv_sc *sc, int stat)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	681 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	682 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	683 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	684
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	685 stat = get_reg(base, PP_TER);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	686 #ifdef CYGDBG_IO_ETH_DRIVERS_DEBUG
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	687 if (cyg_io_eth_net_debug) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	688 diag_printf("Tx event: %x\n", stat);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	689 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	690 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	691 cpd->txbusy = false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	692 (sc->funs->eth_drv->tx_done)(sc, cpd->txkey, 0);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	693 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	694
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	695 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	696 cs8900a_BufEvent(struct eth_drv_sc *sc, int stat)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	697 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	698 if (stat & PP_BufCFG_RxMiss) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	699 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	700 if (stat & PP_BufCFG_TxUE) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	701 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	702 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	703
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	704 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	705 cs8900a_poll(struct eth_drv_sc *sc)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	706 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	707 cyg_uint16 event;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	708 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	709 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	710
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	711 CS_IN(base, CS8900A_ISQ, event);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	712 while (event != 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	713 switch (event & ISQ_EventMask) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	714 case ISQ_RxEvent:
1659 e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	715 cs8900a_RxEvent(sc, event);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	716 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	717 case ISQ_TxEvent:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	718 cs8900a_TxEvent(sc, event);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	719 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	720 case ISQ_BufEvent:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	721 cs8900a_BufEvent(sc, event);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	722 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	723 case ISQ_RxMissEvent:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	724 // Receive miss counter has overflowed
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	725 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	726 case ISQ_TxColEvent:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	727 // Transmit collision counter has overflowed
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	728 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	729 default:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	730 #if DEBUG & 1
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	731 diag_printf("%s: Unknown event: %x\n", __FUNCTION__, event);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	732 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	733 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	734 }
2660 b3f68c7d3671 * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 2428 diff changeset	735 CS_IN(base, CS8900A_ISQ, event);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	736 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	737
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	738 CYGHWR_CL_CS8900A_PLF_INT_CLEAR(cpd);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	739 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	740
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	741 #ifdef CYGSEM_DEVS_ETH_CL_CS8900A_NOINTS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	742 void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	743 cs8900a_fake_int(cyg_addrword_t param)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	744 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	745 struct eth_drv_sc sc = (struct eth_drv_sc ) param;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	746 int s;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	747
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	748 #if DEBUG & 1
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	749 diag_printf("cs8900a_fake_int()\n");
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	750 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	751
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	752 while (true) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	753 cyg_thread_delay(5);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	754 s = splnet();
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	755 cs8900a_poll(sc);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	756 splx(s);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	757 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	758 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	759 #endif

Mercurial > ecos-v3_0-branch

annotate packages/devs/eth/cl/cs8900a/current/src/if_cs8900a.c @ 2839:e5408a8adcb7