diff options
Diffstat (limited to 'host/lib/flashrom_drv.c')
| -rw-r--r-- | host/lib/flashrom_drv.c | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/host/lib/flashrom_drv.c b/host/lib/flashrom_drv.c index a9479c29..56eeb8a7 100644 --- a/host/lib/flashrom_drv.c +++ b/host/lib/flashrom_drv.c @@ -46,8 +46,10 @@ static char *flashrom_extract_params(const char *str, char **prog, char **params return tmp; } -int flashrom_read_image(struct firmware_image *image, const char *region, - int verbosity) +static int flashrom_read_image_impl(struct firmware_image *image, + const char *region, + unsigned int *region_start, + unsigned int *region_len, int verbosity) { int r = 0; size_t len = 0; @@ -106,6 +108,10 @@ int flashrom_read_image(struct firmware_image *image, const char *region, r |= flashrom_image_read(flashctx, image->data, len); + if (r == 0 && region) + r |= flashrom_layout_get_region_range(layout, region, + region_start, region_len); + err_cleanup: flashrom_layout_release(layout); flashrom_flash_release(flashctx); @@ -118,6 +124,25 @@ err_init: return r; } +int flashrom_read_image(struct firmware_image *image, int verbosity) +{ + return flashrom_read_image_impl(image, NULL, NULL, NULL, verbosity); +} + +int flashrom_read_region(struct firmware_image *image, const char *region, + int verbosity) +{ + unsigned int start, len; + int r = flashrom_read_image_impl(image, region, &start, &len, + verbosity); + if (r != 0) + return r; + + memmove(image->data, image->data + start, len); + image->size = len; + return 0; +} + int flashrom_write_image(const struct firmware_image *image, const char * const regions[], const struct firmware_image *diff_image, |