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-rw-r--r--writeprotect.c24
1 files changed, 14 insertions, 10 deletions
diff --git a/writeprotect.c b/writeprotect.c
index 6b3bbcf3..58935932 100644
--- a/writeprotect.c
+++ b/writeprotect.c
@@ -351,16 +351,17 @@ static int set_wp_range(struct wp_bits *bits, struct flashctx *flash, const stru
/** Get the mode selected by a WP configuration. */
static int get_wp_mode(enum flashrom_wp_mode *mode, const struct wp_bits *bits)
{
- if (!bits->srp_bit_present)
- return FLASHROM_WP_ERR_CHIP_UNSUPPORTED;
-
- if (bits->srl_bit_present && bits->srl == 1) {
- *mode = bits->srp ? FLASHROM_WP_MODE_PERMANENT :
- FLASHROM_WP_MODE_POWER_CYCLE;
- } else {
- *mode = bits->srp ? FLASHROM_WP_MODE_HARDWARE :
- FLASHROM_WP_MODE_DISABLED;
- }
+ const enum flashrom_wp_mode wp_modes[2][2] = {
+ {
+ FLASHROM_WP_MODE_DISABLED, /* srl=0, srp=0 */
+ FLASHROM_WP_MODE_HARDWARE, /* srl=0, srp=1 */
+ }, {
+ FLASHROM_WP_MODE_POWER_CYCLE, /* srl=1, srp=0 */
+ FLASHROM_WP_MODE_PERMANENT, /* srl=1, srp=1 */
+ },
+ };
+
+ *mode = wp_modes[bits->srl][bits->srp];
return FLASHROM_WP_OK;
}
@@ -375,6 +376,9 @@ static int set_wp_mode(struct wp_bits *bits, const enum flashrom_wp_mode mode)
return FLASHROM_WP_OK;
case FLASHROM_WP_MODE_HARDWARE:
+ if (!bits->srp_bit_present)
+ return FLASHROM_WP_ERR_CHIP_UNSUPPORTED;
+
bits->srl = 0;
bits->srp = 1;
return FLASHROM_WP_OK;