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