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Make it easier to erase or protect through to the end 

of a (NOR) flash chip: allow passing "last" as an alias
for the number of the last sector.

Improve several aspects of error checking while we're at it.

From: Johnny Halfmoon <jhalfmoon@milksnot.com>


git-svn-id: svn://svn.berlios.de/openocd/trunk@2746 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
dbrownell 2009-09-22 05:39:06 +00:00
parent 6cba486356
commit 50b94628ae
2 changed files with 99 additions and 54 deletions
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18
doc/openocd.texi
View File

@ -3187,8 +3187,11 @@ and AT91SAM7 on-chip flash.
@anchor{flash erase_sector}
@deffn Command {flash erase_sector} num first last
Erase sectors in bank @var{num}, starting at sector @var{first} up to and including
@var{last}. Sector numbering starts at 0.
Erase sectors in bank @var{num}, starting at sector @var{first}
up to and including @var{last}.
Sector numbering starts at 0.
Providing a @var{last} sector of @option{last}
specifies "to the end of the flash bank".
The @var{num} parameter is a value shown by @command{flash banks}.
@end deffn
@ -3247,7 +3250,7 @@ and display that status.
The @var{num} parameter is a value shown by @command{flash banks}.
This is the only operation that
updates the erase state information displayed by @option{flash info}. That means you have
to issue an @command{flash erase_check} command after erasing or programming the device
to issue a @command{flash erase_check} command after erasing or programming the device
to get updated information.
(Code execution may have invalidated any state records kept by OpenOCD.)
@end deffn
@ -3259,9 +3262,12 @@ The information includes per-sector protect status.
@end deffn
@anchor{flash protect}
@deffn Command {flash protect} num first last (on|off)
Enable (@var{on}) or disable (@var{off}) protection of flash sectors
@var{first} to @var{last} of flash bank @var{num}.
@deffn Command {flash protect} num first last (@option{on}|@option{off})
Enable (@option{on}) or disable (@option{off}) protection of flash sectors
in flash bank @var{num}, starting at sector @var{first}
and continuing up to and including @var{last}.
Providing a @var{last} sector of @option{last}
specifies "to the end of the flash bank".
The @var{num} parameter is a value shown by @command{flash banks}.
@end deffn

113
src/flash/flash.c
View File

@ -559,82 +559,121 @@ static int handle_flash_protect_check_command(struct command_context_s *cmd_ctx,
return ERROR_OK;
}
static int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
static int flash_check_sector_parameters(struct command_context_s *cmd_ctx,
uint32_t first, uint32_t last, uint num_sectors)
{
if (!(first <= last)) {
command_print(cmd_ctx, "ERROR: "
"first sector must be <= last sector");
return ERROR_FAIL;
}
if (!(last <= (num_sectors - 1))) {
command_print(cmd_ctx, "ERROR: "
"last sector must be <= %d", num_sectors - 1);
return ERROR_FAIL;
}
return ERROR_OK;
}
static 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);
uint32_t bank_nr;
uint32_t first;
uint32_t last;
int retval;
flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
if ((retval = parse_u32(args[0], &bank_nr)) != ERROR_OK)
return retval;
flash_bank_t *p = get_flash_bank_by_num(bank_nr);
if (!p)
return ERROR_OK;
if ((retval = parse_u32(args[1], &first)) != ERROR_OK)
return retval;
if (strcmp(args[2], "last") == 0)
last = p->num_sectors - 1;
else
if ((retval = parse_u32(args[2], &last)) != ERROR_OK)
return retval;
if ((retval = flash_check_sector_parameters(cmd_ctx,
first, last, p->num_sectors)) != ERROR_OK)
return retval;
duration_t duration;
char *duration_text;
duration_start_measure(&duration);
if (!p)
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
if ((retval = flash_driver_erase(p, first, last)) == ERROR_OK)
{
if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
{
if ((retval = flash_driver_erase(p, first, last)) == ERROR_OK) {
if ((retval = duration_stop_measure(&duration,
&duration_text)) != ERROR_OK)
return retval;
}
command_print(cmd_ctx, "erased sectors %i through %i on flash bank %li in %s",
first, last, strtoul(args[0], 0, 0), duration_text);
command_print(cmd_ctx, "erased sectors %i through %i "
"on flash bank %i in %s",
first, last, bank_nr, duration_text);
free(duration_text);
}
}
else
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
return ERROR_OK;
}
static int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
static 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;
uint32_t bank_nr;
uint32_t first;
uint32_t last;
int retval;
flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
int set;
if ((retval = parse_u32(args[0], &bank_nr)) != ERROR_OK)
return retval;
flash_bank_t *p = get_flash_bank_by_num(bank_nr);
if (!p)
{
command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
return ERROR_OK;
}
if ((retval = parse_u32(args[1], &first)) != ERROR_OK)
return retval;
if (strcmp(args[2], "last") == 0)
last = p->num_sectors - 1;
else
if ((retval = parse_u32(args[2], &last)) != ERROR_OK)
return retval;
if (strcmp(args[3], "on") == 0)
set = 1;
else if (strcmp(args[3], "off") == 0)
set = 0;
else
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
if ((retval = flash_check_sector_parameters(cmd_ctx,
first, last, p->num_sectors)) != ERROR_OK)
return retval;
retval = flash_driver_protect(p, set, first, last);
if (retval == ERROR_OK)
{
command_print(cmd_ctx, "%s protection for sectors %i through %i on flash bank %li",
if (retval == ERROR_OK) {
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));
last, bank_nr);
}
}
else
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
return ERROR_OK;
}