1 /***************************************************************************
2 * Copyright (C) 2010 by Spencer Oliver *
3 * spen@spen-soft.co.uk *
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. *
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. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
17 ***************************************************************************/
25 static struct flash_bank *virtual_get_master_bank(struct flash_bank *bank)
27 struct flash_bank *master_bank;
29 master_bank = get_flash_bank_by_name_noprobe(bank->driver_priv);
30 if (master_bank == NULL)
31 LOG_ERROR("master flash bank '%s' does not exist", (char *)bank->driver_priv);
36 static void virtual_update_bank_info(struct flash_bank *bank)
38 struct flash_bank *master_bank = virtual_get_master_bank(bank);
40 if (master_bank == NULL)
43 /* update the info we do not have */
44 bank->size = master_bank->size;
45 bank->chip_width = master_bank->chip_width;
46 bank->bus_width = master_bank->bus_width;
47 bank->erased_value = master_bank->erased_value;
48 bank->default_padded_value = master_bank->default_padded_value;
49 bank->write_start_alignment = master_bank->write_start_alignment;
50 bank->write_end_alignment = master_bank->write_end_alignment;
51 bank->minimal_write_gap = master_bank->minimal_write_gap;
52 bank->num_sectors = master_bank->num_sectors;
53 bank->sectors = master_bank->sectors;
54 bank->num_prot_blocks = master_bank->num_prot_blocks;
55 bank->prot_blocks = master_bank->prot_blocks;
58 FLASH_BANK_COMMAND_HANDLER(virtual_flash_bank_command)
61 return ERROR_COMMAND_SYNTAX_ERROR;
63 /* get the master flash bank */
64 const char *bank_name = CMD_ARGV[6];
65 struct flash_bank *master_bank = get_flash_bank_by_name_noprobe(bank_name);
67 if (master_bank == NULL) {
68 LOG_ERROR("master flash bank '%s' does not exist", bank_name);
69 return ERROR_FLASH_OPERATION_FAILED;
72 /* save master bank name - use this to get settings later */
73 bank->driver_priv = strdup(bank_name);
78 static int virtual_protect(struct flash_bank *bank, int set, unsigned int first,
81 struct flash_bank *master_bank = virtual_get_master_bank(bank);
83 if (master_bank == NULL)
84 return ERROR_FLASH_OPERATION_FAILED;
86 return flash_driver_protect(master_bank, set, first, last);
89 static int virtual_protect_check(struct flash_bank *bank)
91 struct flash_bank *master_bank = virtual_get_master_bank(bank);
93 if (master_bank == NULL)
94 return ERROR_FLASH_OPERATION_FAILED;
96 if (master_bank->driver->protect_check == NULL)
97 return ERROR_FLASH_OPER_UNSUPPORTED;
99 /* call master handler */
100 return master_bank->driver->protect_check(master_bank);
103 static int virtual_erase(struct flash_bank *bank, unsigned int first,
106 struct flash_bank *master_bank = virtual_get_master_bank(bank);
109 if (master_bank == NULL)
110 return ERROR_FLASH_OPERATION_FAILED;
112 /* call master handler */
113 retval = master_bank->driver->erase(master_bank, first, last);
114 if (retval != ERROR_OK)
120 static int virtual_write(struct flash_bank *bank, const uint8_t *buffer,
121 uint32_t offset, uint32_t count)
123 struct flash_bank *master_bank = virtual_get_master_bank(bank);
126 if (master_bank == NULL)
127 return ERROR_FLASH_OPERATION_FAILED;
129 /* call master handler */
130 retval = master_bank->driver->write(master_bank, buffer, offset, count);
131 if (retval != ERROR_OK)
137 static int virtual_probe(struct flash_bank *bank)
139 struct flash_bank *master_bank = virtual_get_master_bank(bank);
142 if (master_bank == NULL)
143 return ERROR_FLASH_OPERATION_FAILED;
145 /* call master handler */
146 retval = master_bank->driver->probe(master_bank);
147 if (retval != ERROR_OK)
150 /* update the info we do not have */
151 virtual_update_bank_info(bank);
156 static int virtual_auto_probe(struct flash_bank *bank)
158 struct flash_bank *master_bank = virtual_get_master_bank(bank);
161 if (master_bank == NULL)
162 return ERROR_FLASH_OPERATION_FAILED;
164 /* call master handler */
165 retval = master_bank->driver->auto_probe(master_bank);
166 if (retval != ERROR_OK)
169 /* update the info we do not have */
170 virtual_update_bank_info(bank);
175 static int virtual_info(struct flash_bank *bank, struct command_invocation *cmd)
177 struct flash_bank *master_bank = virtual_get_master_bank(bank);
179 if (master_bank == NULL)
180 return ERROR_FLASH_OPERATION_FAILED;
182 command_print_sameline(cmd, "%s driver for flash bank %s at " TARGET_ADDR_FMT,
183 bank->driver->name, master_bank->name, master_bank->base);
188 static int virtual_blank_check(struct flash_bank *bank)
190 struct flash_bank *master_bank = virtual_get_master_bank(bank);
193 if (master_bank == NULL)
194 return ERROR_FLASH_OPERATION_FAILED;
196 /* call master handler */
197 retval = master_bank->driver->erase_check(master_bank);
198 if (retval != ERROR_OK)
204 static int virtual_flash_read(struct flash_bank *bank,
205 uint8_t *buffer, uint32_t offset, uint32_t count)
207 struct flash_bank *master_bank = virtual_get_master_bank(bank);
210 if (master_bank == NULL)
211 return ERROR_FLASH_OPERATION_FAILED;
213 /* call master handler */
214 retval = master_bank->driver->read(master_bank, buffer, offset, count);
215 if (retval != ERROR_OK)
221 const struct flash_driver virtual_flash = {
223 .flash_bank_command = virtual_flash_bank_command,
224 .erase = virtual_erase,
225 .protect = virtual_protect,
226 .write = virtual_write,
227 .read = virtual_flash_read,
228 .probe = virtual_probe,
229 .auto_probe = virtual_auto_probe,
230 .erase_check = virtual_blank_check,
231 .protect_check = virtual_protect_check,
232 .info = virtual_info,
233 .free_driver_priv = default_flash_free_driver_priv,