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comparison packages/io/flash/current/include/flash.h @ 115:6ed91473a1cd ecos-sw-2000-08-21

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Merge from eCos master repository on 2000-08-21-22:40:54-BST
author jlarmour
date Fri, 25 Aug 2000 17:32:38 +0000
parents
children 77cec8369160
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114:5ad2b71d525e 115:6ed91473a1cd
1 //==========================================================================
2 //
3 // flash.h
4 //
5 // Flash programming - external interfaces
6 //
7 //==========================================================================
8 //####COPYRIGHTBEGIN####
9 //
10 // -------------------------------------------
11 // The contents of this file are subject to the Red Hat eCos Public License
12 // Version 1.1 (the "License"); you may not use this file except in
13 // compliance with the License. You may obtain a copy of the License at
14 // http://www.redhat.com/
15 //
16 // Software distributed under the License is distributed on an "AS IS"
17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
18 // License for the specific language governing rights and limitations under
19 // the License.
20 //
21 // The Original Code is eCos - Embedded Configurable Operating System,
22 // released September 30, 1998.
23 //
24 // The Initial Developer of the Original Code is Red Hat.
25 // Portions created by Red Hat are
26 // Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
27 // All Rights Reserved.
28 // -------------------------------------------
29 //
30 //####COPYRIGHTEND####
31 //==========================================================================
32 //#####DESCRIPTIONBEGIN####
33 //
34 // Author(s): gthomas
35 // Contributors: gthomas
36 // Date: 2000-07-14
37 // Purpose:
38 // Description:
39 //
40 //####DESCRIPTIONEND####
41 //
42 //==========================================================================
43
44 #ifndef _IO_FLASH_H_
45 #define _IO_FLASH_H_
46
47 #define FLASH_MIN_WORKSPACE 0x10000 // Space used by FLASH code
48
49 extern int flash_init(void *work_space, int work_space_length);
50 extern int flash_erase(void *base, int len, void **err_address);
51 extern int flash_program(void *flash_base, void *ram_base, int len, void **err_address);
52 extern int flash_verify_addr(void *base);
53 extern int flash_get_limits(void *base, void **start, void **end);
54 extern int flash_get_block_info(int *block_size, int *blocks);
55 extern bool flash_code_overlaps(void *start, void *end);
56 extern char *flash_errmsg(int err);
57
58 #define FLASH_ERR_OK 0x00 // No error - operation complete
59 #define FLASH_ERR_INVALID 0x01 // Invalid FLASH address
60 #define FLASH_ERR_ERASE 0x02 // Error trying to erase
61 #define FLASH_ERR_LOCK 0x03 // Error trying to lock/unlock
62 #define FLASH_ERR_PROGRAM 0x04 // Error trying to program
63 #define FLASH_ERR_PROTOCOL 0x05 // Generic error
64 #define FLASH_ERR_PROTECT 0x06 // Device/region is write-protected
65 #define FLASH_ERR_NOT_INIT 0x07 // FLASH info not yet initialized
66 #define FLASH_ERR_HWR 0x08 // Hardware (configuration?) problem
67
68 #ifdef _FLASH_PRIVATE_
69
70 struct flash_info {
71 void *work_space;
72 int work_space_size;
73 int block_size; // Assuming fixed size "blocks"
74 int blocks; // Number of blocks
75 unsigned long block_mask;
76 void *start, *end; // Address range
77 int init;
78 };
79
80 extern struct flash_info flash_info;
81 extern int flash_hwr_init(void);
82 extern int flash_hwr_map_error(int err);
83
84 #endif
85
86 #endif // _IO_FLASH_H_