/**
* Handle the hang detect timer expiring.
*/
static void hang_detect_deferred(void)
{
/* If we're no longer active, nothing to do */
if (!active)
return;
/* If we're rebooting the AP, stop hang detection */
if (timeout_will_reboot) {
CPRINTS("hang detect triggering warm reboot");
host_set_single_event(EC_HOST_EVENT_HANG_REBOOT);
chipset_reset(0);
active = 0;
return;
}
/* Otherwise, we're starting with the host event */
CPRINTS("hang detect sending host event");
host_set_single_event(EC_HOST_EVENT_HANG_DETECT);
/* If we're also rebooting, defer for the remaining delay */
if (hdparams.warm_reboot_timeout_msec) {
CPRINTS("hang detect continuing (for reboot)");
timeout_will_reboot = 1;
hook_call_deferred(hang_detect_deferred,
(hdparams.warm_reboot_timeout_msec -
hdparams.host_event_timeout_msec) * MSEC);
} else {
/* Not rebooting, so go back to idle */
active = 0;
}
}
static int command_apreset(int argc, char **argv)
{
int is_cold = 1;
if (argc > 1 && !strcasecmp(argv[1], "cold"))
is_cold = 1;
else if (argc > 1 && !strcasecmp(argv[1], "warm"))
is_cold = 0;
/* Force the chipset to reset */
ccprintf("Issuing AP %s reset...\n", is_cold ? "cold" : "warm");
chipset_reset(is_cold);
return EC_SUCCESS;
}
/* Using this hook if system doesn't have enough external line. */
static void check_ap_reset_second(void)
{
/* Check the warm reset signal from servo board */
static int warm_reset, last;
warm_reset = !gpio_get_level(GPIO_AP_RESET_L);
if (last == warm_reset)
return;
if (warm_reset)
chipset_reset(0); /* Warm reset AP */
last = warm_reset;
}
enum power_state power_chipset_init(void)
{
int init_power_state;
uint32_t reset_flags = system_get_reset_flags();
/*
* Force the AP shutdown unless we are doing SYSJUMP. Otherwise,
* the AP could stay in strange state.
*/
if (!(reset_flags & RESET_FLAG_SYSJUMP)) {
CPRINTS("not sysjump; forcing AP shutdown");
chipset_turn_off_power_rails();
/*
* The warm reset triggers AP into the RK recovery mode (
* flash SPI from USB).
*/
chipset_reset(0);
init_power_state = POWER_G3;
} else {
/* In the SYSJUMP case, we check if the AP is on */
if (power_get_signals() & IN_POWER_GOOD)
init_power_state = POWER_S0;
else
init_power_state = POWER_G3;
}
/* Leave power off only if requested by reset flags */
if (!(reset_flags & RESET_FLAG_AP_OFF) &&
!(reset_flags & RESET_FLAG_SYSJUMP)) {
CPRINTS("auto_power_on set due to reset_flag 0x%x",
system_get_reset_flags());
auto_power_on = 1;
}
/*
* Some batteries use clock stretching feature, which requires
* more time to be stable. See http://crosbug.com/p/28289
*/
battery_wait_for_stable();
return init_power_state;
}
