diff options
Diffstat (limited to 'src/flash/nor/faux.c')
| -rw-r--r-- | src/flash/nor/faux.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/src/flash/nor/faux.c b/src/flash/nor/faux.c new file mode 100644 index 00000000..caec2c79 --- /dev/null +++ b/src/flash/nor/faux.c @@ -0,0 +1,149 @@ +/*************************************************************************** + * Copyright (C) 2009 Øyvind Harboe * + * oyvind.harboe@zylin.com * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "flash.h" +#include "image.h" +#include "../hello.h" + + +struct faux_flash_bank +{ + struct target *target; + uint8_t *memory; + uint32_t start_address; +}; + +static const int sectorSize = 0x10000; + + +/* flash bank faux <base> <size> <chip_width> <bus_width> <target#> <driverPath> + */ +FLASH_BANK_COMMAND_HANDLER(faux_flash_bank_command) +{ + struct faux_flash_bank *info; + + if (CMD_ARGC < 6) + { + LOG_WARNING("incomplete flash_bank faux configuration"); + return ERROR_FLASH_BANK_INVALID; + } + + info = malloc(sizeof(struct faux_flash_bank)); + if (info == NULL) + { + LOG_ERROR("no memory for flash bank info"); + return ERROR_FAIL; + } + info->memory = malloc(bank->size); + if (info == NULL) + { + free(info); + LOG_ERROR("no memory for flash bank info"); + return ERROR_FAIL; + } + bank->driver_priv = info; + + /* Use 0x10000 as a fixed sector size. */ + int i = 0; + uint32_t offset = 0; + bank->num_sectors = bank->size/sectorSize; + bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors); + for (i = 0; i < bank->num_sectors; i++) + { + bank->sectors[i].offset = offset; + bank->sectors[i].size = sectorSize; + offset += bank->sectors[i].size; + bank->sectors[i].is_erased = -1; + bank->sectors[i].is_protected = 0; + } + + info->target = get_target(CMD_ARGV[5]); + if (info->target == NULL) + { + LOG_ERROR("target '%s' not defined", CMD_ARGV[5]); + free(info->memory); + free(info); + return ERROR_FAIL; + } + return ERROR_OK; +} + +static int faux_erase(struct flash_bank *bank, int first, int last) +{ + struct faux_flash_bank *info = bank->driver_priv; + memset(info->memory + first*sectorSize, 0xff, sectorSize*(last-first + 1)); + return ERROR_OK; +} + +static int faux_protect(struct flash_bank *bank, int set, int first, int last) +{ + LOG_USER("set protection sector %d to %d to %s", first, last, set?"on":"off"); + return ERROR_OK; +} + +static int faux_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count) +{ + struct faux_flash_bank *info = bank->driver_priv; + memcpy(info->memory + offset, buffer, count); + return ERROR_OK; +} + +static int faux_protect_check(struct flash_bank *bank) +{ + return ERROR_OK; +} + +static int faux_info(struct flash_bank *bank, char *buf, int buf_size) +{ + snprintf(buf, buf_size, "faux flash driver"); + return ERROR_OK; +} + +static int faux_probe(struct flash_bank *bank) +{ + return ERROR_OK; +} + +static const struct command_registration faux_command_handlers[] = { + { + .name = "faux", + .mode = COMMAND_ANY, + .help = "faux flash command group", + .chain = hello_command_handlers, + }, + COMMAND_REGISTRATION_DONE +}; + +struct flash_driver faux_flash = { + .name = "faux", + .commands = faux_command_handlers, + .flash_bank_command = &faux_flash_bank_command, + .erase = &faux_erase, + .protect = &faux_protect, + .write = &faux_write, + .probe = &faux_probe, + .auto_probe = &faux_probe, + .erase_check = &default_flash_blank_check, + .protect_check = &faux_protect_check, + .info = &faux_info + }; |