blob: f7dd0e8ec508b80d922102cab510c69f95acf1f2 [file] [log] [blame]
/*
* Copyright (c) 2022 Espressif Systems (Shanghai) Co., Ltd.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/pm/pm.h>
#include <zephyr/irq.h>
#include <esp_sleep.h>
#include <zephyr/logging/log.h>
LOG_MODULE_DECLARE(soc, CONFIG_SOC_LOG_LEVEL);
/* Invoke Low Power/System Off specific Tasks */
__weak void pm_state_set(enum pm_state state, uint8_t substate_id)
{
ARG_UNUSED(substate_id);
switch (state) {
case PM_STATE_SOFT_OFF:
/* Forces RTC domain to be always on */
esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON);
esp_deep_sleep_start();
break;
case PM_STATE_STANDBY:
/* Nothing to do. */
break;
default:
LOG_DBG("Unsupported power state %u", state);
break;
}
}
/* Handle SOC specific activity after Low Power Mode Exit */
__weak void pm_state_exit_post_ops(enum pm_state state, uint8_t substate_id)
{
ARG_UNUSED(substate_id);
switch (state) {
case PM_STATE_SOFT_OFF:
/* Nothing to do. */
break;
case PM_STATE_STANDBY:
irq_unlock(MSTATUS_IEN);
__asm__ volatile("wfi");
esp_light_sleep_start();
break;
default:
LOG_DBG("Unsupported power state %u", state);
break;
}
}