/*************************************************************************** * Copyright (C) 2010 by Spencer Oliver * * spen@spen-soft.co.uk * * * * 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, see . * ***************************************************************************/ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "imp.h" static struct flash_bank *virtual_get_master_bank(struct flash_bank *bank) { struct flash_bank *master_bank; master_bank = get_flash_bank_by_name_noprobe(bank->driver_priv); if (master_bank == NULL) LOG_ERROR("master flash bank '%s' does not exist", (char *)bank->driver_priv); return master_bank; } static void virtual_update_bank_info(struct flash_bank *bank) { struct flash_bank *master_bank = virtual_get_master_bank(bank); if (master_bank == NULL) return; /* update the info we do not have */ bank->size = master_bank->size; bank->chip_width = master_bank->chip_width; bank->bus_width = master_bank->bus_width; bank->erased_value = master_bank->erased_value; bank->default_padded_value = master_bank->default_padded_value; bank->write_start_alignment = master_bank->write_start_alignment; bank->write_end_alignment = master_bank->write_end_alignment; bank->minimal_write_gap = master_bank->minimal_write_gap; bank->num_sectors = master_bank->num_sectors; bank->sectors = master_bank->sectors; bank->num_prot_blocks = master_bank->num_prot_blocks; bank->prot_blocks = master_bank->prot_blocks; } FLASH_BANK_COMMAND_HANDLER(virtual_flash_bank_command) { if (CMD_ARGC < 7) return ERROR_COMMAND_SYNTAX_ERROR; /* get the master flash bank */ const char *bank_name = CMD_ARGV[6]; struct flash_bank *master_bank = get_flash_bank_by_name_noprobe(bank_name); if (master_bank == NULL) { LOG_ERROR("master flash bank '%s' does not exist", bank_name); return ERROR_FLASH_OPERATION_FAILED; } /* save master bank name - use this to get settings later */ bank->driver_priv = strdup(bank_name); return ERROR_OK; } static int virtual_protect(struct flash_bank *bank, int set, int first, int last) { struct flash_bank *master_bank = virtual_get_master_bank(bank); int retval; if (master_bank == NULL) return ERROR_FLASH_OPERATION_FAILED; /* call master handler */ retval = master_bank->driver->protect(master_bank, set, first, last); if (retval != ERROR_OK) return retval; return ERROR_OK; } static int virtual_protect_check(struct flash_bank *bank) { struct flash_bank *master_bank = virtual_get_master_bank(bank); int retval; if (master_bank == NULL) return ERROR_FLASH_OPERATION_FAILED; /* call master handler */ retval = master_bank->driver->protect_check(master_bank); if (retval != ERROR_OK) return retval; return ERROR_OK; } static int virtual_erase(struct flash_bank *bank, int first, int last) { struct flash_bank *master_bank = virtual_get_master_bank(bank); int retval; if (master_bank == NULL) return ERROR_FLASH_OPERATION_FAILED; /* call master handler */ retval = master_bank->driver->erase(master_bank, first, last); if (retval != ERROR_OK) return retval; return ERROR_OK; } static int virtual_write(struct flash_bank *bank, const uint8_t *buffer, uint32_t offset, uint32_t count) { struct flash_bank *master_bank = virtual_get_master_bank(bank); int retval; if (master_bank == NULL) return ERROR_FLASH_OPERATION_FAILED; /* call master handler */ retval = master_bank->driver->write(master_bank, buffer, offset, count); if (retval != ERROR_OK) return retval; return ERROR_OK; } static int virtual_probe(struct flash_bank *bank) { struct flash_bank *master_bank = virtual_get_master_bank(bank); int retval; if (master_bank == NULL) return ERROR_FLASH_OPERATION_FAILED; /* call master handler */ retval = master_bank->driver->probe(master_bank); if (retval != ERROR_OK) return retval; /* update the info we do not have */ virtual_update_bank_info(bank); return ERROR_OK; } static int virtual_auto_probe(struct flash_bank *bank) { struct flash_bank *master_bank = virtual_get_master_bank(bank); int retval; if (master_bank == NULL) return ERROR_FLASH_OPERATION_FAILED; /* call master handler */ retval = master_bank->driver->auto_probe(master_bank); if (retval != ERROR_OK) return retval; /* update the info we do not have */ virtual_update_bank_info(bank); return ERROR_OK; } static int virtual_info(struct flash_bank *bank, char *buf, int buf_size) { struct flash_bank *master_bank = virtual_get_master_bank(bank); if (master_bank == NULL) return ERROR_FLASH_OPERATION_FAILED; snprintf(buf, buf_size, "%s driver for flash bank %s at 0x%8.8" PRIx32 "", bank->driver->name, master_bank->name, master_bank->base); return ERROR_OK; } static int virtual_blank_check(struct flash_bank *bank) { struct flash_bank *master_bank = virtual_get_master_bank(bank); int retval; if (master_bank == NULL) return ERROR_FLASH_OPERATION_FAILED; /* call master handler */ retval = master_bank->driver->erase_check(master_bank); if (retval != ERROR_OK) return retval; return ERROR_OK; } static int virtual_flash_read(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count) { struct flash_bank *master_bank = virtual_get_master_bank(bank); int retval; if (master_bank == NULL) return ERROR_FLASH_OPERATION_FAILED; /* call master handler */ retval = master_bank->driver->read(master_bank, buffer, offset, count); if (retval != ERROR_OK) return retval; return ERROR_OK; } struct flash_driver virtual_flash = { .name = "virtual", .flash_bank_command = virtual_flash_bank_command, .erase = virtual_erase, .protect = virtual_protect, .write = virtual_write, .read = virtual_flash_read, .probe = virtual_probe, .auto_probe = virtual_auto_probe, .erase_check = virtual_blank_check, .protect_check = virtual_protect_check, .info = virtual_info, .free_driver_priv = default_flash_free_driver_priv, };