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Add the ability to set Bus Pirate SPI speed via the command line

Browse Source 
Example usage:
flashrom -p buspiratespi:spispeed=2.6MHz,dev=/dev/foo
flashrom -p buspiratespi:dev=/dev/foo,spispeed=2.6M

Refactor programmer option parsing (this allows cleanups in other
programmers as well).

Increase SPI read size from 8 to 12 bytes (current single-transaction
limit of the Bus Pirate raw SPI protocol).

Add Bus Pirate to the list of programmers supporting 4 byte RDID.

Add Bus Pirate syntax to the man page.

Tested-by: Sean Nelson <audiohacked@gmail.com>

Corresponding to flashrom svn r776.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Sean Nelson <audiohacked@gmail.com>
This commit is contained in:
Carl-Daniel Hailfinger
2009-11-24 18:27:10 +00:00
parent d70b09ca13
commit d5b28fae1d
5 changed files with 108 additions and 20 deletions
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54
flashrom.c
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@ -336,6 +336,60 @@ char *strcat_realloc(char *dest, const char *src)
return dest;
}
/* This is a somewhat hacked function similar in some ways to strtok().
* It will look for needle in haystack, return a copy of needle and remove
* everything from the first occurrence of needle to the next delimiter
* from haystack.
*/
char *extract_param(char **haystack, char *needle, char *delim)
{
char *param_pos, *rest, *tmp;
char *dev = NULL;
int devlen;
param_pos = strstr(*haystack, needle);
do {
if (!param_pos)
return NULL;
/* Beginning of the string? */
if (param_pos == *haystack)
break;
/* After a delimiter? */
if (strchr(delim, *(param_pos - 1)))
break;
/* Continue searching. */
param_pos++;
param_pos = strstr(param_pos, needle);
} while (1);
if (param_pos) {
param_pos += strlen(needle);
devlen = strcspn(param_pos, delim);
if (devlen) {
dev = malloc(devlen + 1);
if (!dev) {
fprintf(stderr, "Out of memory!\n");
exit(1);
}
strncpy(dev, param_pos, devlen);
dev[devlen] = '\0';
}
rest = param_pos + devlen;
rest += strspn(rest, delim);
param_pos -= strlen(needle);
memmove(param_pos, rest, strlen(rest) + 1);
tmp = realloc(*haystack, strlen(*haystack) + 1);
if (!tmp) {
fprintf(stderr, "Out of memory!\n");
exit(1);
}
*haystack = tmp;
}
return dev;
}
/* start is an offset to the base address of the flash chip */
int check_erased_range(struct flashchip *flash, int start, int len)
{