diff options
| -rw-r--r-- | include/ec_commands.h | 35 | ||||
| -rw-r--r-- | power/common.c | 30 |
2 files changed, 65 insertions, 0 deletions
diff --git a/include/ec_commands.h b/include/ec_commands.h index ddf47d4fc7..b2eb3fe385 100644 --- a/include/ec_commands.h +++ b/include/ec_commands.h @@ -2909,6 +2909,41 @@ struct ec_params_external_power_limit_v1 { #define EC_POWER_LIMIT_NONE 0xffff /*****************************************************************************/ +/* Hibernate/Deep Sleep Commands */ + +/* Set the delay before going into hibernation. */ +#define EC_CMD_HIBERNATION_DELAY 0xa8 + +struct ec_params_hibernation_delay { + /* + * Seconds to wait in G3 before hibernate. Pass in 0 to read the + * current settings without changing them. + */ + uint32_t seconds; +}; + +struct ec_response_hibernation_delay { + /* + * The current time in seconds in which the system has been in the G3 + * state. This value is reset if the EC transitions out of G3. + */ + uint32_t time_g3; + + /* + * The current time remaining in seconds until the EC should hibernate. + * This value is also reset if the EC transitions out of G3. + */ + uint32_t time_remaining; + + /* + * The current time in seconds that the EC should wait in G3 before + * hibernating. + */ + uint32_t hibernate_delay; +}; + + +/*****************************************************************************/ /* Smart battery pass-through */ /* Get / Set 16-bit smart battery registers */ diff --git a/power/common.c b/power/common.c index fa0ccc2816..204ef2221e 100644 --- a/power/common.c +++ b/power/common.c @@ -562,6 +562,36 @@ DECLARE_CONSOLE_COMMAND(hibdelay, command_hibernation_delay, "[sec]", "Set the delay before going into hibernation", NULL); + +static int host_command_hibernation_delay(struct host_cmd_handler_args *args) +{ + const struct ec_params_hibernation_delay *p = args->params; + struct ec_response_hibernation_delay *r = args->response; + + uint32_t time_g3 = (uint32_t)((get_time().val - last_shutdown_time) + / SECOND); + + /* Only change the hibernation delay if seconds is non-zero. */ + if (p->seconds) + hibernate_delay = p->seconds; + + if (state == POWER_G3 && !extpower_is_present()) + r->time_g3 = time_g3; + else + r->time_g3 = 0; + + if ((time_g3 != 0) && (time_g3 > hibernate_delay)) + r->time_remaining = 0; + else + r->time_remaining = hibernate_delay - time_g3; + r->hibernate_delay = hibernate_delay; + + args->response_size = sizeof(struct ec_response_hibernation_delay); + return EC_SUCCESS; +} +DECLARE_HOST_COMMAND(EC_CMD_HIBERNATION_DELAY, + host_command_hibernation_delay, + EC_VER_MASK(0)); #endif /* CONFIG_HIBERNATE */ #ifdef CONFIG_POWER_SHUTDOWN_PAUSE_IN_S5 |