diff options
Diffstat (limited to 'src/ec')
| -rw-r--r-- | src/ec/google/wilco/commands.c | 43 | ||||
| -rw-r--r-- | src/ec/google/wilco/commands.h | 14 |
2 files changed, 46 insertions, 11 deletions
diff --git a/src/ec/google/wilco/commands.c b/src/ec/google/wilco/commands.c index a97a28ecce..9d4170f539 100644 --- a/src/ec/google/wilco/commands.c +++ b/src/ec/google/wilco/commands.c @@ -182,8 +182,45 @@ int wilco_ec_signed_fw(void) return !!ec_read(EC_RAM_SIGNED_FW); } -int wilco_ec_err_code(enum ec_err_code err_code) +struct err_code_entry { + uint8_t post_code; + enum ec_err_code ec_err; +}; + +/* + * Any post codes not listed in the post_code_err_map[] use default. + */ +static const enum ec_err_code default_ec_err = DLED_ROM; +static const struct err_code_entry post_code_err_map[] = { + { .post_code = POST_RAM_FAILURE, .ec_err = DLED_MEMORY, }, + { .post_code = POST_VIDEO_FAILURE, .ec_err = DLED_PANEL, }, +}; + +/* Records the most recent post code during boot */ +static uint8_t wilco_ec_saved_post_code; + +void wilco_ec_save_post_code(uint8_t post_code) +{ + wilco_ec_saved_post_code = post_code; +} + +/* Send error code to the EC based on last saved post code */ +void die_notify(void) { - return wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, KB_ERR_CODE, - &err_code, 1, NULL, 0); + size_t i; + enum ec_err_code err_code = default_ec_err; + + for (i = 0; i < ARRAY_SIZE(post_code_err_map); i++) { + if (post_code_err_map[i].post_code == + wilco_ec_saved_post_code) { + err_code = post_code_err_map[i].ec_err; + break; + } + } + + printk(BIOS_EMERG, "Fatal error: post_code 0x%02x, EC err 0x%02x\n", + wilco_ec_saved_post_code, err_code); + + wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, KB_ERR_CODE, + &err_code, 1, NULL, 0); } diff --git a/src/ec/google/wilco/commands.h b/src/ec/google/wilco/commands.h index fafb7fd8ba..9b7f2e5d07 100644 --- a/src/ec/google/wilco/commands.h +++ b/src/ec/google/wilco/commands.h @@ -319,16 +319,14 @@ enum ec_acpi_wake_events { int wilco_ec_signed_fw(void); /** - * wilco_ec_err_code + * wilco_ec_save_post_code * - * Send an error code to the EC to indicate a failed boot. The EC flashes the - * platform LED amber and white to provide user indication of the failure type. + * Save this post code as the most recent progress step. If the boot fails + * and calls die_notify() this post code will be used to send an error code + * to the EC indicating the failure. * - * @err_code: Error code to send to the EC - * - * Returns 0 if EC command was successful - * Returns -1 if EC command failed + * @post_code: Post code to save */ -int wilco_ec_err_code(enum ec_err_code err_code); +void wilco_ec_save_post_code(uint8_t post_code); #endif /* EC_GOOGLE_WILCO_COMMANDS_H */ |