src/flash/flash.h

   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifndef FLASH_H
  21 #define FLASH_H
  22
  23 #include "target.h"
  24
  25 typedef struct flash_sector_s
  26 {
  27         u32 offset;
  28         u32 size;
  29         int is_erased;
  30         int is_protected;
  31 } flash_sector_t;
  32
  33 struct flash_bank_s;
  34
  35 typedef struct flash_driver_s
  36 {
  37         char *name;
  38         int (*register_commands)(struct command_context_s *cmd_ctx);
  39         int (*flash_bank_command)(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
  40         int (*erase)(struct flash_bank_s *bank, int first, int last);
  41         int (*protect)(struct flash_bank_s *bank, int set, int first, int last);
  42         int (*write)(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
  43         int (*probe)(struct flash_bank_s *bank);
  44         int (*erase_check)(struct flash_bank_s *bank);
  45         int (*protect_check)(struct flash_bank_s *bank);
  46         int (*info)(struct flash_bank_s *bank, char *buf, int buf_size);
  47 } flash_driver_t;
  48
  49 typedef struct flash_bank_s
  50 {
  51         flash_driver_t *driver;
  52         void *driver_priv;
  53         u32 base;
  54         u32 size;
  55         int chip_width;
  56         int bus_width;
  57         int num_sectors;
  58         flash_sector_t *sectors;
  59         struct flash_bank_s *next;
  60 } flash_bank_t;
  61
  62 extern int flash_register_commands(struct command_context_s *cmd_ctx);
  63 extern int flash_init(struct command_context_s *cmd_ctx);
  64
  65 extern flash_bank_t *get_flash_bank_by_num(int num);
  66
  67 #define         ERROR_FLASH_BANK_INVALID                (-900)
  68 #define         ERROR_FLASH_SECTOR_INVALID              (-901)
  69 #define         ERROR_FLASH_OPERATION_FAILED    (-902)
  70 #define         ERROR_FLASH_DST_OUT_OF_BANK             (-903)
  71 #define         ERROR_FLASH_DST_BREAKS_ALIGNMENT (-904)
  72 #define         ERROR_FLASH_BUSY                                (-905)
  73 #define         ERROR_FLASH_SECTOR_NOT_ERASED   (-906)
  74 #define         ERROR_FLASH_BANK_NOT_PROBED             (-907)
  75
  76 #endif /* FLASH_H */