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
, 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
;
86 /* call master handler */
87 retval
= master_bank
->driver
->protect(master_bank
, set
, first
, last
);
88 if (retval
!= ERROR_OK
)
94 static int virtual_protect_check(struct flash_bank
*bank
)
96 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
99 if (master_bank
== NULL
)
100 return ERROR_FLASH_OPERATION_FAILED
;
102 /* call master handler */
103 retval
= master_bank
->driver
->protect_check(master_bank
);
104 if (retval
!= ERROR_OK
)
110 static int virtual_erase(struct flash_bank
*bank
, int first
, int last
)
112 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
115 if (master_bank
== NULL
)
116 return ERROR_FLASH_OPERATION_FAILED
;
118 /* call master handler */
119 retval
= master_bank
->driver
->erase(master_bank
, first
, last
);
120 if (retval
!= ERROR_OK
)
126 static int virtual_write(struct flash_bank
*bank
, const uint8_t *buffer
,
127 uint32_t offset
, uint32_t count
)
129 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
132 if (master_bank
== NULL
)
133 return ERROR_FLASH_OPERATION_FAILED
;
135 /* call master handler */
136 retval
= master_bank
->driver
->write(master_bank
, buffer
, offset
, count
);
137 if (retval
!= ERROR_OK
)
143 static int virtual_probe(struct flash_bank
*bank
)
145 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
148 if (master_bank
== NULL
)
149 return ERROR_FLASH_OPERATION_FAILED
;
151 /* call master handler */
152 retval
= master_bank
->driver
->probe(master_bank
);
153 if (retval
!= ERROR_OK
)
156 /* update the info we do not have */
157 virtual_update_bank_info(bank
);
162 static int virtual_auto_probe(struct flash_bank
*bank
)
164 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
167 if (master_bank
== NULL
)
168 return ERROR_FLASH_OPERATION_FAILED
;
170 /* call master handler */
171 retval
= master_bank
->driver
->auto_probe(master_bank
);
172 if (retval
!= ERROR_OK
)
175 /* update the info we do not have */
176 virtual_update_bank_info(bank
);
181 static int virtual_info(struct flash_bank
*bank
, char *buf
, int buf_size
)
183 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
185 if (master_bank
== NULL
)
186 return ERROR_FLASH_OPERATION_FAILED
;
188 snprintf(buf
, buf_size
, "%s driver for flash bank %s at 0x%8.8" PRIx32
"",
189 bank
->driver
->name
, master_bank
->name
, master_bank
->base
);
194 static int virtual_blank_check(struct flash_bank
*bank
)
196 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
199 if (master_bank
== NULL
)
200 return ERROR_FLASH_OPERATION_FAILED
;
202 /* call master handler */
203 retval
= master_bank
->driver
->erase_check(master_bank
);
204 if (retval
!= ERROR_OK
)
210 static int virtual_flash_read(struct flash_bank
*bank
,
211 uint8_t *buffer
, uint32_t offset
, uint32_t count
)
213 struct flash_bank
*master_bank
= virtual_get_master_bank(bank
);
216 if (master_bank
== NULL
)
217 return ERROR_FLASH_OPERATION_FAILED
;
219 /* call master handler */
220 retval
= master_bank
->driver
->read(master_bank
, buffer
, offset
, count
);
221 if (retval
!= ERROR_OK
)
227 struct flash_driver virtual_flash
= {
229 .flash_bank_command
= virtual_flash_bank_command
,
230 .erase
= virtual_erase
,
231 .protect
= virtual_protect
,
232 .write
= virtual_write
,
233 .read
= virtual_flash_read
,
234 .probe
= virtual_probe
,
235 .auto_probe
= virtual_auto_probe
,
236 .erase_check
= virtual_blank_check
,
237 .protect_check
= virtual_protect_check
,
238 .info
= virtual_info
,
239 .free_driver_priv
= default_flash_free_driver_priv
,
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