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, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
26 static struct flash_bank
* virtual_get_master_bank(struct flash_bank
*bank
)
28 struct flash_bank
* master_bank
;
30 master_bank
= get_flash_bank_by_name_noprobe(bank
->driver_priv
);
31 if (master_bank
== NULL
) {
32 LOG_ERROR("master flash bank '%s' does not exist", (char*)bank
->driver_priv
);
38 static void virtual_update_bank_info(struct flash_bank
*bank
)
40 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
42 if (master_bank
== NULL
) {
46 /* update the info we do not have */
47 bank
->size
= master_bank
->size
;
48 bank
->chip_width
= master_bank
->chip_width
;
49 bank
->bus_width
= master_bank
->bus_width
;
50 bank
->num_sectors
= master_bank
->num_sectors
;
51 bank
->sectors
= master_bank
->sectors
;
54 FLASH_BANK_COMMAND_HANDLER(virtual_flash_bank_command
)
58 LOG_WARNING("incomplete flash_bank virtual configuration");
59 return ERROR_FLASH_OPERATION_FAILED
;
62 /* get the master flash bank */
63 const char *bank_name
= CMD_ARGV
[6];
64 struct flash_bank
*master_bank
= get_flash_bank_by_name_noprobe(bank_name
);
66 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
, int first
, int last
)
80 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
83 if (master_bank
== NULL
) {
84 return ERROR_FLASH_OPERATION_FAILED
;
87 /* call master handler */
88 if ((retval
= master_bank
->driver
->protect(master_bank
, set
,
89 first
, last
)) != ERROR_OK
)
95 static int virtual_protect_check(struct flash_bank
*bank
)
97 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
100 if (master_bank
== NULL
) {
101 return ERROR_FLASH_OPERATION_FAILED
;
104 /* call master handler */
105 if ((retval
= master_bank
->driver
->protect_check(master_bank
)) != ERROR_OK
)
111 static int virtual_erase(struct flash_bank
*bank
, int first
, int last
)
113 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
116 if (master_bank
== NULL
) {
117 return ERROR_FLASH_OPERATION_FAILED
;
120 /* call master handler */
121 if ((retval
= master_bank
->driver
->erase(master_bank
,
122 first
, last
)) != ERROR_OK
)
128 static int virtual_write(struct flash_bank
*bank
, uint8_t *buffer
,
129 uint32_t offset
, uint32_t count
)
131 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
134 if (master_bank
== NULL
) {
135 return ERROR_FLASH_OPERATION_FAILED
;
138 /* call master handler */
139 if ((retval
= master_bank
->driver
->write(master_bank
, buffer
,
140 offset
, count
)) != ERROR_OK
)
146 static int virtual_probe(struct flash_bank
*bank
)
148 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
151 if (master_bank
== NULL
) {
152 return ERROR_FLASH_OPERATION_FAILED
;
155 /* call master handler */
156 if ((retval
= master_bank
->driver
->probe(master_bank
)) != ERROR_OK
)
159 /* update the info we do not have */
160 virtual_update_bank_info(bank
);
165 static int virtual_auto_probe(struct flash_bank
*bank
)
167 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
170 if (master_bank
== NULL
) {
171 return ERROR_FLASH_OPERATION_FAILED
;
174 /* call master handler */
175 if ((retval
= master_bank
->driver
->auto_probe(master_bank
)) != ERROR_OK
)
178 /* update the info we do not have */
179 virtual_update_bank_info(bank
);
184 static int virtual_info(struct flash_bank
*bank
, char *buf
, int buf_size
)
186 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
188 if (master_bank
== NULL
) {
189 return ERROR_FLASH_OPERATION_FAILED
;
192 snprintf(buf
, buf_size
, "%s driver for flash bank %s at 0x%8.8" PRIx32
"",
193 bank
->driver
->name
, master_bank
->name
, master_bank
->base
);
198 static int virtual_blank_check(struct flash_bank
*bank
)
200 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
203 if (master_bank
== NULL
) {
204 return ERROR_FLASH_OPERATION_FAILED
;
207 /* call master handler */
208 if ((retval
= master_bank
->driver
->erase_check(master_bank
)) != ERROR_OK
)
214 static int virtual_flash_read(struct flash_bank
*bank
,
215 uint8_t *buffer
, uint32_t offset
, uint32_t count
)
217 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
220 if (master_bank
== NULL
) {
221 return ERROR_FLASH_OPERATION_FAILED
;
224 /* call master handler */
225 if ((retval
= master_bank
->driver
->read(master_bank
, buffer
,
226 offset
, count
)) != ERROR_OK
)
232 struct flash_driver virtual_flash
= {
234 .flash_bank_command
= virtual_flash_bank_command
,
235 .erase
= virtual_erase
,
236 .protect
= virtual_protect
,
237 .write
= virtual_write
,
238 .read
= virtual_flash_read
,
239 .probe
= virtual_probe
,
240 .auto_probe
= virtual_auto_probe
,
241 .erase_check
= virtual_blank_check
,
242 .protect_check
= virtual_protect_check
,
243 .info
= virtual_info
,
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