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
);
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
);
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
);
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
);
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
);
94 return ERROR_FLASH_OPERATION_FAILED
;
96 if (!master_bank
->driver
->protect_check
)
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
);
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
);
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
);
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
);
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
);
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
);
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
);
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
,
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