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 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
19 ***************************************************************************/
27 static struct flash_bank
*virtual_get_master_bank(struct flash_bank
*bank
)
29 struct flash_bank
*master_bank
;
31 master_bank
= get_flash_bank_by_name_noprobe(bank
->driver_priv
);
32 if (master_bank
== NULL
)
33 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
)
45 /* update the info we do not have */
46 bank
->size
= master_bank
->size
;
47 bank
->chip_width
= master_bank
->chip_width
;
48 bank
->bus_width
= master_bank
->bus_width
;
49 bank
->num_sectors
= master_bank
->num_sectors
;
50 bank
->sectors
= master_bank
->sectors
;
53 FLASH_BANK_COMMAND_HANDLER(virtual_flash_bank_command
)
56 return ERROR_COMMAND_SYNTAX_ERROR
;
58 /* get the master flash bank */
59 const char *bank_name
= CMD_ARGV
[6];
60 struct flash_bank
*master_bank
= get_flash_bank_by_name_noprobe(bank_name
);
62 if (master_bank
== NULL
) {
63 LOG_ERROR("master flash bank '%s' does not exist", bank_name
);
64 return ERROR_FLASH_OPERATION_FAILED
;
67 /* save master bank name - use this to get settings later */
68 bank
->driver_priv
= strdup(bank_name
);
73 static int virtual_protect(struct flash_bank
*bank
, int set
, int first
, int last
)
75 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
78 if (master_bank
== NULL
)
79 return ERROR_FLASH_OPERATION_FAILED
;
81 /* call master handler */
82 retval
= master_bank
->driver
->protect(master_bank
, set
, first
, last
);
83 if (retval
!= ERROR_OK
)
89 static int virtual_protect_check(struct flash_bank
*bank
)
91 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
94 if (master_bank
== NULL
)
95 return ERROR_FLASH_OPERATION_FAILED
;
97 /* call master handler */
98 retval
= master_bank
->driver
->protect_check(master_bank
);
99 if (retval
!= ERROR_OK
)
105 static int virtual_erase(struct flash_bank
*bank
, int first
, int last
)
107 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
110 if (master_bank
== NULL
)
111 return ERROR_FLASH_OPERATION_FAILED
;
113 /* call master handler */
114 retval
= master_bank
->driver
->erase(master_bank
, first
, last
);
115 if (retval
!= ERROR_OK
)
121 static int virtual_write(struct flash_bank
*bank
, uint8_t *buffer
,
122 uint32_t offset
, uint32_t count
)
124 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
127 if (master_bank
== NULL
)
128 return ERROR_FLASH_OPERATION_FAILED
;
130 /* call master handler */
131 retval
= master_bank
->driver
->write(master_bank
, buffer
, offset
, count
);
132 if (retval
!= ERROR_OK
)
138 static int virtual_probe(struct flash_bank
*bank
)
140 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
143 if (master_bank
== NULL
)
144 return ERROR_FLASH_OPERATION_FAILED
;
146 /* call master handler */
147 retval
= master_bank
->driver
->probe(master_bank
);
148 if (retval
!= ERROR_OK
)
151 /* update the info we do not have */
152 virtual_update_bank_info(bank
);
157 static int virtual_auto_probe(struct flash_bank
*bank
)
159 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
162 if (master_bank
== NULL
)
163 return ERROR_FLASH_OPERATION_FAILED
;
165 /* call master handler */
166 retval
= master_bank
->driver
->auto_probe(master_bank
);
167 if (retval
!= ERROR_OK
)
170 /* update the info we do not have */
171 virtual_update_bank_info(bank
);
176 static int virtual_info(struct flash_bank
*bank
, char *buf
, int buf_size
)
178 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
180 if (master_bank
== NULL
)
181 return ERROR_FLASH_OPERATION_FAILED
;
183 snprintf(buf
, buf_size
, "%s driver for flash bank %s at 0x%8.8" PRIx32
"",
184 bank
->driver
->name
, master_bank
->name
, master_bank
->base
);
189 static int virtual_blank_check(struct flash_bank
*bank
)
191 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
194 if (master_bank
== NULL
)
195 return ERROR_FLASH_OPERATION_FAILED
;
197 /* call master handler */
198 retval
= master_bank
->driver
->erase_check(master_bank
);
199 if (retval
!= ERROR_OK
)
205 static int virtual_flash_read(struct flash_bank
*bank
,
206 uint8_t *buffer
, uint32_t offset
, uint32_t count
)
208 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
211 if (master_bank
== NULL
)
212 return ERROR_FLASH_OPERATION_FAILED
;
214 /* call master handler */
215 retval
= master_bank
->driver
->read(master_bank
, buffer
, offset
, count
);
216 if (retval
!= ERROR_OK
)
222 struct flash_driver virtual_flash
= {
224 .flash_bank_command
= virtual_flash_bank_command
,
225 .erase
= virtual_erase
,
226 .protect
= virtual_protect
,
227 .write
= virtual_write
,
228 .read
= virtual_flash_read
,
229 .probe
= virtual_probe
,
230 .auto_probe
= virtual_auto_probe
,
231 .erase_check
= virtual_blank_check
,
232 .protect_check
= virtual_protect_check
,
233 .info
= virtual_info
,
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