components/esp_hw_support/include/esp_private/sleep_gpio.h (ESP-IDF)

/* * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ #pragma once #include <stdint.h> #include "sdkconfig.h" #ifdef __cplusplus extern "C" { #endif /** * @file sleep_gpio.h * * This file contains declarations of GPIO related functions in sleep modes. */ #if CONFIG_GPIO_ESP32_SUPPORT_SWITCH_SLP_PULL /** * @brief Save GPIO pull-up and pull-down configuration information in the wake-up state * * In light sleep mode, the pull-up and pull-down resistors of GPIO will cause * leakage current when the system sleeps. In order to reduce the power * consumption of system sleep, it needs to save the configuration information * of all GPIO pull-up and pull-down resistors and disable the pull-up and * pull-down resistors of GPIO before the system enters sleep. */ void gpio_sleep_mode_config_apply(void); /** * @brief Restore GPIO pull-up and pull-down configuration information in the wake-up state * * In light sleep mode, after the system wakes up, it needs to restore all GPIO * pull-up and pull-down configurations before the last sleep. */ void gpio_sleep_mode_config_unapply(void); #endif // CONFIG_GPIO_ESP32_SUPPORT_SWITCH_SLP_PULL /** * @brief Call once in startup to disable the wakeup IO pins and release their holding state after waking up from Deep-sleep */ void esp_deep_sleep_wakeup_io_reset(void); #ifdef __cplusplus } #endif