/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "flash.h"
#include "command.h"
#include "target.h"
#include "time_support.h"
#include "fileio.h"
#include "image.h"
#include "log.h"
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <inttypes.h>
/* command handlers */
int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_banks_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_write_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_write_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_auto_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr);
/* flash drivers
*/
extern flash_driver_t lpc2000_flash;
extern flash_driver_t cfi_flash;
extern flash_driver_t at91sam7_flash;
extern flash_driver_t str7x_flash;
extern flash_driver_t str9x_flash;
extern flash_driver_t stellaris_flash;
extern flash_driver_t str9xpec_flash;
extern flash_driver_t stm32x_flash;
extern flash_driver_t tms470_flash;
flash_driver_t *flash_drivers[] =
{
&lpc2000_flash,
&cfi_flash,
&at91sam7_flash,
&str7x_flash,
&str9x_flash,
&stellaris_flash,
&str9xpec_flash,
&stm32x_flash,
&tms470_flash,
NULL,
};
flash_bank_t *flash_banks;
static command_t *flash_cmd;
static int auto_erase = 0;
int flash_register_commands(struct command_context_s *cmd_ctx)
{
flash_cmd = register_command(cmd_ctx, NULL, "flash", NULL, COMMAND_ANY, NULL);
register_command(cmd_ctx, flash_cmd, "bank", handle_flash_bank_command, COMMAND_CONFIG, NULL);
register_command(cmd_ctx, flash_cmd, "auto_erase", handle_flash_auto_erase_command, COMMAND_ANY,
"auto erase flash sectors <on|off>");
return ERROR_OK;
}
int flash_init_drivers(struct command_context_s *cmd_ctx)
{
if (flash_banks)
{
register_command(cmd_ctx, flash_cmd, "banks", handle_flash_banks_command, COMMAND_EXEC,
"list configured flash banks ");
register_command(cmd_ctx, flash_cmd, "info", handle_flash_info_command, COMMAND_EXEC,
"print info about flash bank <num>");
register_command(cmd_ctx, flash_cmd, "probe", handle_flash_probe_command, COMMAND_EXEC,
"identify flash bank <num>");
register_command(cmd_ctx, flash_cmd, "erase_check", handle_flash_erase_check_command, COMMAND_EXEC,
"check erase state of sectors in flash bank <num>");
register_command(cmd_ctx, flash_cmd, "protect_check", handle_flash_protect_check_command, COMMAND_EXEC,
"check protection state of sectors in flash bank <num>");
register_command(cmd_ctx, flash_cmd, "erase", handle_flash_erase_command, COMMAND_EXEC,
"DEPRECATED, use 'erase_sector' instead");
register_command(cmd_ctx, flash_cmd, "erase_sector", handle_flash_erase_command, COMMAND_EXEC,
"erase sectors at <bank> <first> <last>");
register_command(cmd_ctx, flash_cmd, "erase_address", handle_flash_erase_address_command, COMMAND_EXEC,
"erase address range <address> <length>");
register_command(cmd_ctx, flash_cmd, "write", handle_flash_write_binary_command, COMMAND_EXEC,
"DEPRECATED, use 'write_binary' instead");
register_command(cmd_ctx, flash_cmd, "write_binary", handle_flash_write_binary_command, COMMAND_EXEC,
"write binary <bank> <file> <offset>");
register_command(cmd_ctx, flash_cmd, "write_image", handle_flash_write_image_command, COMMAND_EXEC,
"write_image <file> [offset] [type]");
register_command(cmd_ctx, flash_cmd, "protect", handle_flash_protect_command, COMMAND_EXEC,
"set protection of sectors at <bank> <first> <last> <on|off>");
}
return ERROR_OK;
}
flash_bank_t *get_flash_bank_by_num_noprobe(int num)
{
flash_bank_t *p;
int i = 0;
for (p = flash_banks; p; p = p->next)
{
if (i++ == num)
{
return p;
}
}
return NULL;
}
flash_bank_t *get_flash_bank_by_num(int num)
{
flash_bank_t *p = get_flash_bank_by_num_noprobe(num);
int retval;
if (p == NULL)
return NULL;
retval = p->driver->auto_probe(p);
if (retval != ERROR_OK)
{
ERROR("auto_probe failed %d\n", retval);
return NULL;
}
return p;
}
/* flash_bank <driver> <base> <size> <chip_width> <bus_width> <target> [driver_options ...]
*/
int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
int i;
int found = 0;
target_t *target;
if (argc < 6)
{
WARNING("incomplete flash_bank configuration");
WARNING("flash_bank <driver> <base> <size> <chip_width> <bus_width> <target> [driver_options ...]");
return ERROR_OK;
}
if ((target = get_target_by_num(strtoul(args[5], NULL, 0))) == NULL)
{
ERROR("target %lu not defined", strtoul(args[5], NULL, 0));
return ERROR_OK;
}
for (i = 0; flash_drivers[i]; i++)
{
if (strcmp(args[0], flash_drivers[i]->name) == 0)
{
flash_bank_t *p, *c;
/* register flash specific commands */
if (flash_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
{
ERROR("couldn't register '%s' commands", args[0]);
exit(-1);
}
c = malloc(sizeof(flash_bank_t));
c->target = target;
c->driver = flash_drivers[i];
c->driver_priv = NULL;
c->base = strtoul(args[1], NULL, 0);
c->size = strtoul(args[2], NULL, 0);
c->chip_width = strtoul(args[3], NULL, 0);
c->bus_width = strtoul(args[4], NULL, 0);
c->num_sectors = 0;
c->sectors = NULL;
c->next = NULL;
if (flash_drivers[i]->flash_bank_command(cmd_ctx, cmd, args, argc, c) != ERROR_OK)
{
ERROR("'%s' driver rejected flash bank at 0x%8.8x", args[0], c->base);
free(c);
return ERROR_OK;
}
/* put flash bank in linked list */
if (flash_banks)
{
/* find last flash bank */
for (p = flash_banks; p && p->next; p = p->next);
if (p)
p->next = c;
}
else
{
flash_banks = c;
}
found = 1;
}
}
/* no matching flash driver found */
if (!found)
{
ERROR("flash driver '%s' not found", args[0]);
exit(-1);
}
return ERROR_OK;
}
int handle_flash_banks_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
flash_bank_t *p;
int i = 0;
if (!flash_banks)
{
command_print(cmd_ctx, "no flash banks configured");
return ERROR_OK;
}
for (p = flash_banks; p; p = p->next)
{
command_print(cmd_ctx, "#%i: %s at 0x%8.8x, size 0x%8.8x, buswidth %i, chipwidth %i",
i++, p->driver->name, p->base, p->size, p->bus_width, p->chip_width);
}
return ERROR_OK;
}
int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
flash_bank_t *p;
int i = 0;
int j = 0;
if (argc != 1)
{
command_print(cmd_ctx, "usage: flash info <num>");
return ERROR_OK;
}
for (p = flash_banks; p; p = p->next, i++)
{
if (i == strtoul(args[0], NULL, 0))
{
char buf[1024];
/* attempt auto probe */
p->driver->auto_probe(p);
command_print(cmd_ctx, "#%i: %s at 0x%8.8x, size 0x%8.8x, buswidth %i, chipwidth %i",
i, p->driver->name, p->base, p->size, p->bus_width, p->chip_width);
for (j = 0; j < p->num_sectors; j++)
{
char *erase_state, *protect_state;
if (p->sectors[j].is_erased == 0)
erase_state = "not erased";
else if (p->sectors[j].is_erased == 1)
erase_state = "erased";
else
erase_state = "erase state unknown";
if (p->sectors[j].is_protected == 0)
protect_state = "not protected";
else if (p->sectors[j].is_protected == 1)
protect_state = "protected";
else
protect_state = "protection state unknown";
command_print(cmd_ctx, "\t#%i: 0x%8.8x (0x%x %ikB) %s, %s",
j, p->sectors[j].offset, p->sectors[j].size, p->sectors[j].size>>10,
erase_state, protect_state);
}
p->driver->info(p, buf, 1024);
command_print(cmd_ctx, "%s", buf);
}
}
return ERROR_OK;
}
int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
flash_bank_t *p;
int retval;
if (argc != 1)
{
command_print(cmd_ctx, "usage: flash probe <num>");
return ERROR_OK;
}
p = get_flash_bank_by_num_noprobe(strtoul(args[0], NULL, 0));
if (p)
{
if ((retval = p->driver->probe(p)) == ERROR_OK)
{
command_print(cmd_ctx, "flash '%s' found at 0x%8.8x", p->driver->name, p->base);
}
else if (retval == ERROR_FLASH_BANK_INVALID)
{
command_print(cmd_ctx, "probing failed for flash bank '#%s' at 0x%8.8x",
args[0], p->base);
}
else
{
command_print(cmd_ctx, "unknown error when probing flash bank '#%s' at 0x%8.8x",
args[0], p->base);
}
}
else
{
command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
}
return ERROR_OK;
}
int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
flash_bank_t *p;
int retval;
if (argc != 1)
{
command_print(cmd_ctx, "usage: flash erase_check <num>");
return ERROR_OK;
}
p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
if (p)
{
if ((retval = p->driver->erase_check(p)) == ERROR_OK)
{
command_print(cmd_ctx, "successfully checked erase state", p->driver->name, p->base);
}
else
{
command_print(cmd_ctx, "unknown error when checking erase state of flash bank #%s at 0x%8.8x",
args[0], p->base);
}
}
else
{
command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
}
return ERROR_OK;
}
int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
flash_bank_t *p;
int retval;
int address;
int length;
duration_t duration;
char *duration_text;
target_t *target = get_current_target(cmd_ctx);
if (argc != 2)
{
command_print(cmd_ctx, "usage: flash erase_address <address> <length>");
return ERROR_OK;
}
address = strtoul(args[0], NULL, 0);
length = strtoul(args[1], NULL, 0);
if (length <= 0)
{
command_print(cmd_ctx, "Length must be >0");
return ERROR_INVALID_ARGUMENTS;
}
p = get_flash_bank_by_addr(target, address);
if (p == NULL)
{
command_print(cmd_ctx, "No flash at that address");
return ERROR_INVALID_ARGUMENTS;
}
/* We can't know if we did a resume + halt, in which case we no longer know the erased state */
flash_set_dirty();
duration_start_measure(&duration);
if ((retval = flash_erase_address_range(target, address, length)) != ERROR_OK)
{
switch (retval)
{
case ERROR_TARGET_NOT_HALTED:
command_print(cmd_ctx, "can't work with this flash while target is running");
break;
case ERROR_INVALID_ARGUMENTS:
command_print(cmd_ctx, "usage: flash erase_address <address> <length>");
break;
case ERROR_FLASH_BANK_INVALID:
command_print(cmd_ctx, "no '%s' flash found at 0x%8.8x", p->driver->name, p->base);
break;
case ERROR_FLASH_OPERATION_FAILED:
command_print(cmd_ctx, "flash erase error");
break;
case ERROR_FLASH_SECTOR_INVALID:
command_print(cmd_ctx, "sector number(s) invalid");
break;
default:
command_print(cmd_ctx, "unknown error");
}
}
else
{
duration_stop_measure(&duration, &duration_text);
command_print(cmd_ctx, "erased address 0x%8.8x length %i in %s", address, length, duration_text);
free(duration_text);
}
return retval;
}
int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
flash_bank_t *p;
int retval;
if (argc != 1)
{
command_print(cmd_ctx, "usage: flash protect_check <num>");
return ERROR_OK;
}
p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
if (p)
{
if ((retval = p->driver->protect_check(p)) == ERROR_OK)
{
command_print(cmd_ctx, "successfully checked protect state");
}
else if (retval == ERROR_FLASH_OPERATION_FAILED)
{
command_print(cmd_ctx, "checking protection state failed (possibly unsupported) by flash #%s at 0x%8.8x", args[0], p->base);
}
else
{
command_print(cmd_ctx, "unknown error when checking protection state of flash bank '#%s' at 0x%8.8x", args[0], p->base);
}
}
else
{
command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
}
return ERROR_OK;
}
int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc > 2)
{
int first = strtoul(args[1], NULL, 0);
int last = strtoul(args[2], NULL, 0);
int retval;
flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
duration_t duration;
char *duration_text;
duration_start_measure(&duration);
if (!p)
{
command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
return ERROR_OK;
}
if ((retval = p->driver->erase(p, first, last)) != ERROR_OK)
{
switch (retval)
{
case ERROR_TARGET_NOT_HALTED:
command_print(cmd_ctx, "can't work with this flash while target is running");
break;
case ERROR_INVALID_ARGUMENTS:
command_print(cmd_ctx, "usage: flash_erase <bank> <first> <last>");
break;
case ERROR_FLASH_BANK_INVALID:
command_print(cmd_ctx, "no '%s' flash found at 0x%8.8x", p->driver->name, p->base);
break;
case ERROR_FLASH_OPERATION_FAILED:
command_print(cmd_ctx, "flash erase error");
break;
case ERROR_FLASH_SECTOR_INVALID:
command_print(cmd_ctx, "sector number(s) invalid");
break;
case ERROR_OK:
command_print(cmd_ctx, "erased flash sectors %i to %i", first, last);
break;
default:
command_print(cmd_ctx, "unknown error");
}
}
else
{
duration_stop_measure(&duration, &duration_text);
command_print(cmd_ctx, "erased sectors %i through %i on flash bank %i in %s", first, last, strtoul(args[0], 0, 0), duration_text);
free(duration_text);
}
}
else
{
command_print(cmd_ctx, "usage: flash erase <bank> <first> <last>");
}
return ERROR_OK;
}
int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc > 3)
{
int first = strtoul(args[1], NULL, 0);
int last = strtoul(args[2], NULL, 0);
int set;
int retval;
flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
if (!p)
{
command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
return ERROR_OK;
}
if (strcmp(args[3], "on") == 0)
set = 1;
else if (strcmp(args[3], "off") == 0)
set = 0;
else
{
command_print(cmd_ctx, "usage: flash protect <bank> <first> <last> <on|off>");
return ERROR_OK;
}
if ((retval = p->driver->protect(p, set, first, last)) != ERROR_OK)
{
switch (retval)
{
case ERROR_TARGET_NOT_HALTED:
command_print(cmd_ctx, "can't work with this flash while target is running");
break;
case ERROR_INVALID_ARGUMENTS:
command_print(cmd_ctx, "usage: flash protect <bank> <first> <last> <on|off>");
break;
case ERROR_FLASH_BANK_INVALID:
command_print(cmd_ctx, "no '%s' flash found at 0x%8.8x", p->driver->name, p->base);
break;
case ERROR_FLASH_OPERATION_FAILED:
command_print(cmd_ctx, "flash program error");
break;
case ERROR_FLASH_SECTOR_INVALID:
command_print(cmd_ctx, "sector number(s) invalid");
break;
case ERROR_OK:
command_print(cmd_ctx, "protection of flash sectors %i to %i turned %s", first, last, args[3]);
break;
default:
command_print(cmd_ctx, "unknown error");
}
}
else
{
command_print(cmd_ctx, "%s protection for sectors %i through %i on flash bank %i", (set) ? "set" : "cleared", first, last, strtoul(args[0], 0, 0));
}
}
else
{
command_print(cmd_ctx, "usage: flash protect <bank> <first> <last> <on|off>");
}
return ERROR_OK;
}
int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
target_t *target = get_current_target(cmd_ctx);
image_t image;
u32 written;
char *error_str;
int *failed;
int i;
duration_t duration;
char *duration_text;
int retval;
if (argc < 1)
{
command_print(cmd_ctx, "usage: flash %s <file> [offset] [type]", cmd);
return ERROR_INVALID_ARGUMENTS;
}
if (!target)
{
ERROR("no target selected");
return ERROR_OK;
}
duration_start_measure(&duration);
if (argc >= 2)
{
image.base_address_set = 1;
image.base_address = strtoul(args[1], NULL, 0);
}
else
{
image.base_address_set = 0;
image.base_address = 0x0;
}
image.start_address_set = 0;
retval = image_open(&image, args[0], (argc == 3) ? args[2] : NULL);
if (retval != ERROR_OK)
{
command_print(cmd_ctx, "image_open error: %s", image.error_str);
return retval;
}
failed = malloc(sizeof(int) * image.num_sections);
error_str = NULL;
retval = flash_write(target, &image, &written, &error_str, failed, auto_erase);
if (retval != ERROR_OK)
{
if (error_str)
{
command_print(cmd_ctx, "failed writing image %s: %s", args[0], error_str);
free(error_str);
}
image_close(&image);
free(failed);
return retval;
}
for (i = 0; i < image.num_sections; i++)
{
if (failed[i])
{
command_print(cmd_ctx, "didn't write section at 0x%8.8x, size 0x%8.8x",
image.sections[i].base_address, image.sections[i].size);
}
}
duration_stop_measure(&duration, &duration_text);
command_print(cmd_ctx, "wrote %u byte from file %s in %s (%f kb/s)",
written, args[0], duration_text,
(float)written / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
free(duration_text);
free(failed);
image_close(&image);
return ERROR_OK;
}
int handle_flash_write_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
u32 offset;
u8 *buffer;
u32 buf_cnt;
fileio_t fileio;
duration_t duration;
char *duration_text;
int retval;
flash_bank_t *p;
if (argc < 3)
{
command_print(cmd_ctx, "usage: flash write_binary <bank> <file> <offset>");
return ERROR_OK;
}
duration_start_measure(&duration);
offset = strtoul(args[2], NULL, 0);
p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
if (!p)
{
command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
return ERROR_OK;
}
if (fileio_open(&fileio, args[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
{
command_print(cmd_ctx, "flash write_binary error: %s", fileio.error_str);
return ERROR_OK;
}
buffer = malloc(fileio.size);
if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)
{
command_print(cmd_ctx, "flash write_binary error: %s", fileio.error_str);
return ERROR_OK;
}
if ((retval = p->driver->write(p, buffer, offset, buf_cnt)) != ERROR_OK)
{
command_print(cmd_ctx, "failed writing file %s to flash bank %i at offset 0x%8.8x",
args[1], strtoul(args[0], NULL, 0), strtoul(args[2], NULL, 0));
switch (retval)
{
case ERROR_TARGET_NOT_HALTED:
command_print(cmd_ctx, "can't work with this flash while target is running");
break;
case ERROR_INVALID_ARGUMENTS:
command_print(cmd_ctx, "usage: flash write <bank> <file> <offset>");
break;
case ERROR_FLASH_BANK_INVALID:
command_print(cmd_ctx, "no '%s' flash found at 0x%8.8x", p->driver->name, p->base);
break;
case ERROR_FLASH_OPERATION_FAILED:
command_print(cmd_ctx, "flash program error");
break;
case ERROR_FLASH_DST_BREAKS_ALIGNMENT:
command_print(cmd_ctx, "offset breaks required alignment");
break;
case ERROR_FLASH_DST_OUT_OF_BANK:
command_print(cmd_ctx, "destination is out of flash bank (offset and/or file too large)");
break;
case ERROR_FLASH_SECTOR_NOT_ERASED:
command_print(cmd_ctx, "destination sector(s) not erased");
break;
default:
command_print(cmd_ctx, "unknown error");
}
}
free(buffer);
duration_stop_measure(&duration, &duration_text);
command_print(cmd_ctx, "wrote %"PRIi64" byte from file %s to flash bank %i at offset 0x%8.8x in %s (%f kb/s)",
fileio.size, args[1], strtoul(args[0], NULL, 0), offset, duration_text,
(float)fileio.size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
free(duration_text);
fileio_close(&fileio);
return ERROR_OK;
}
void flash_set_dirty(void)
{
flash_bank_t *c;
int i;
/* set all flash to require erasing */
for (c = flash_banks; c; c = c->next)
{
for (i = 0; i < c->num_sectors; i++)
{
c->sectors[i].is_erased = 0;
}
}
}
/* lookup flash bank by address */
flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr)
{
flash_bank_t *c;
/* cycle through bank list */
for (c = flash_banks; c; c = c->next)
{
int retval;
retval = c->driver->auto_probe(c);
if (retval != ERROR_OK)
{
ERROR("auto_probe failed %d\n", retval);
return NULL;
}
/* check whether address belongs to this flash bank */
if ((addr >= c->base) && (addr < c->base + c->size) && target == c->target)
return c;
}
return NULL;
}
/* erase given flash region, selects proper bank according to target and address */
int flash_erase_address_range(target_t *target, u32 addr, u32 length)
{
flash_bank_t *c;
int first = -1;
int last = -1;
int i;
if ((c = get_flash_bank_by_addr(target, addr)) == NULL)
return ERROR_FLASH_DST_OUT_OF_BANK; /* no corresponding bank found */
if (c->size == 0 || c->num_sectors == 0)
return ERROR_FLASH_BANK_INVALID;
if (length == 0)
{
/* special case, erase whole bank when length is zero */
if (addr != c->base)
return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
return c->driver->erase(c, 0, c->num_sectors - 1);
}
/* check whether it fits */
if (addr + length > c->base + c->size)
return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
addr -= c->base;
for (i = 0; i < c->num_sectors; i++)
{
/* check whether sector overlaps with the given range and is not yet erased */
if (addr < c->sectors[i].offset + c->sectors[i].size && addr + length > c->sectors[i].offset && c->sectors[i].is_erased != 1) {
/* if first is not set yet then this is the first sector */
if (first == -1)
first = i;
last = i; /* and it is the last one so far in any case */
}
}
if( first == -1 || last == -1 )
return ERROR_OK;
return c->driver->erase(c, first, last);
}
/* write (optional verify) an image to flash memory of the given target */
int flash_write(target_t *target, image_t *image, u32 *written, char **error_str, int *failed, int erase)
{
int retval;
int i;
int section;
u32 section_offset;
flash_bank_t *c;
section = 0;
section_offset = 0;
if (written)
*written = 0;
if (failed != NULL)
for (i = 0; i < image->num_sections; i++)
failed[i] = 0;
if (erase)
{
/* assume all sectors need erasing - stops any problems
* when flash_write is called multiple times */
flash_set_dirty();
}
/* loop until we reach end of the image */
while (section < image->num_sections)
{
u32 buffer_size;
u8 *buffer;
int section_first;
int section_last;
u32 run_address = image->sections[section].base_address + section_offset;
u32 run_size = image->sections[section].size - section_offset;
if (image->sections[section].size == 0)
{
WARNING("empty section %d", section);
section++;
section_offset = 0;
continue;
}
/* find the corresponding flash bank */
if ((c = get_flash_bank_by_addr(target, run_address)) == NULL)
{
if (failed == NULL)
{
if (error_str == NULL)
return ERROR_FLASH_DST_OUT_OF_BANK; /* abort operation */
*error_str = malloc(FLASH_MAX_ERROR_STR);
snprintf(*error_str, FLASH_MAX_ERROR_STR, "no flash mapped at requested address");
return ERROR_FLASH_DST_OUT_OF_BANK; /* abort operation */
}
failed[section] = ERROR_FLASH_DST_OUT_OF_BANK; /* mark the section as failed */
section++; /* and skip it */
section_offset = 0;
continue;
}
/* collect consecutive sections which fall into the same bank */
section_first = section;
section_last = section;
while ((run_address + run_size < c->base + c->size)
&& (section_last + 1 < image->num_sections))
{
if (image->sections[section_last + 1].base_address < (run_address + run_size))
{
DEBUG("section %d out of order(very slightly surprising, but supported)", section_last + 1);
break;
}
if (image->sections[section_last + 1].base_address != (run_address + run_size))
break;
run_size += image->sections[++section_last].size;
}
/* fit the run into bank constraints */
if (run_address + run_size > c->base + c->size)
run_size = c->base + c->size - run_address;
/* allocate buffer */
buffer = malloc(run_size);
buffer_size = 0;
/* read sections to the buffer */
while (buffer_size < run_size)
{
u32 size_read;
if (buffer_size - run_size <= image->sections[section].size - section_offset)
size_read = buffer_size - run_size;
else
size_read = image->sections[section].size - section_offset;
if ((retval = image_read_section(image, section, section_offset,
size_read, buffer + buffer_size, &size_read)) != ERROR_OK || size_read == 0)
{
free(buffer);
if (error_str == NULL)
return ERROR_IMAGE_TEMPORARILY_UNAVAILABLE;
*error_str = malloc(FLASH_MAX_ERROR_STR);
/* if image_read_section returned an error there's an error string we can pass on */
if (retval != ERROR_OK)
snprintf(*error_str, FLASH_MAX_ERROR_STR, "error reading from image: %s", image->error_str);
else
snprintf(*error_str, FLASH_MAX_ERROR_STR, "error reading from image");
return ERROR_IMAGE_TEMPORARILY_UNAVAILABLE;
}
buffer_size += size_read;
section_offset += size_read;
if (section_offset >= image->sections[section].size)
{
section++;
section_offset = 0;
}
}
retval = ERROR_OK;
if (erase)
{
/* calculate and erase sectors */
retval = flash_erase_address_range( target, run_address, run_size );
}
if (retval == ERROR_OK)
{
/* write flash sectors */
retval = c->driver->write(c, buffer, run_address - c->base, run_size);
}
free(buffer);
if (retval != ERROR_OK)
{
if (error_str == NULL)
return retval; /* abort operation */
*error_str = malloc(FLASH_MAX_ERROR_STR);
switch (retval)
{
case ERROR_TARGET_NOT_HALTED:
snprintf(*error_str, FLASH_MAX_ERROR_STR, "can't flash image while target is running");
break;
case ERROR_INVALID_ARGUMENTS:
snprintf(*error_str, FLASH_MAX_ERROR_STR, "flash driver can't fulfill request");
break;
case ERROR_FLASH_OPERATION_FAILED:
snprintf(*error_str, FLASH_MAX_ERROR_STR, "flash program error");
break;
case ERROR_FLASH_DST_BREAKS_ALIGNMENT:
snprintf(*error_str, FLASH_MAX_ERROR_STR, "offset breaks required alignment");
break;
case ERROR_FLASH_DST_OUT_OF_BANK:
snprintf(*error_str, FLASH_MAX_ERROR_STR, "no flash mapped at requested address");
break;
case ERROR_FLASH_SECTOR_NOT_ERASED:
snprintf(*error_str, FLASH_MAX_ERROR_STR, "destination sector(s) not erased");
break;
default:
snprintf(*error_str, FLASH_MAX_ERROR_STR, "unknown error: %i", retval);
}
return retval; /* abort operation */
}
if (written != NULL)
*written += run_size; /* add run size to total written counter */
}
return ERROR_OK;
}
int handle_flash_auto_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc != 1)
{
command_print(cmd_ctx, "usage: flash auto_erase <on|off>");
return ERROR_OK;
}
if (strcmp(args[0], "on") == 0)
auto_erase = 1;
else if (strcmp(args[0], "off") == 0)
auto_erase = 0;
return ERROR_OK;
}