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light sleep: separate sleep gpio function

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This commit is contained in:
Li Shuai
2021-08-19 21:57:17 +08:00
parent f5a12f4900
commit b0757dfcfa
5 changed files with 122 additions and 48 deletions
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1
components/esp_hw_support/CMakeLists.txt
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@@ -15,6 +15,7 @@ if(NOT BOOTLOADER_BUILD)
"intr_alloc.c"
"mac_addr.c"
"sleep_modes.c"
"sleep_gpio.c"
"regi2c_ctrl.c")
list(APPEND requires esp_ipc)
else()

46
components/esp_hw_support/include/esp_private/sleep_gpio.h Normal file
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@@ -0,0 +1,46 @@
/*
* 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 light sleep mode.
*/
#if SOC_GPIO_SUPPORT_SLP_SWITCH && 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 // SOC_GPIO_SUPPORT_SLP_SWITCH && CONFIG_GPIO_ESP32_SUPPORT_SWITCH_SLP_PULL
#ifdef __cplusplus
}
#endif

72
components/esp_hw_support/sleep_gpio.c Normal file
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@@ -0,0 +1,72 @@
/*
* SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stddef.h>
#include <string.h>
#include <sys/lock.h>
#include <sys/param.h>
#include "esp_attr.h"
#include "esp_sleep.h"
#include "esp_log.h"
#include "soc/soc_caps.h"
#include "sdkconfig.h"
#include "driver/gpio.h"
#include "esp_private/gpio.h"
#include "esp_private/sleep_gpio.h"
static const char *TAG = "sleep";
#if SOC_GPIO_SUPPORT_SLP_SWITCH
#if CONFIG_GPIO_ESP32_SUPPORT_SWITCH_SLP_PULL
void gpio_sleep_mode_config_apply(void)
{
for (gpio_num_t gpio_num = GPIO_NUM_0; gpio_num < GPIO_NUM_MAX; gpio_num++) {
if (GPIO_IS_VALID_GPIO(gpio_num)) {
gpio_sleep_pupd_config_apply(gpio_num);
}
}
}
IRAM_ATTR void gpio_sleep_mode_config_unapply(void)
{
for (gpio_num_t gpio_num = GPIO_NUM_0; gpio_num < GPIO_NUM_MAX; gpio_num++) {
if (GPIO_IS_VALID_GPIO(gpio_num)) {
gpio_sleep_pupd_config_unapply(gpio_num);
}
}
}
#endif
void esp_sleep_config_gpio_isolate(void)
{
ESP_LOGI(TAG, "Configure to isolate all GPIO pins in sleep state");
for (gpio_num_t gpio_num = GPIO_NUM_0; gpio_num < GPIO_NUM_MAX; gpio_num++) {
if (GPIO_IS_VALID_GPIO(gpio_num)) {
gpio_sleep_set_direction(gpio_num, GPIO_MODE_DISABLE);
gpio_sleep_set_pull_mode(gpio_num, GPIO_FLOATING);
}
}
}
void esp_sleep_enable_gpio_switch(bool enable)
{
ESP_LOGI(TAG, "%s automatic switching of GPIO sleep configuration", enable ? "Enable" : "Disable");
for (gpio_num_t gpio_num = GPIO_NUM_0; gpio_num < GPIO_NUM_MAX; gpio_num++) {
if (GPIO_IS_VALID_GPIO(gpio_num)) {
if (enable) {
gpio_sleep_sel_en(gpio_num);
} else {
gpio_sleep_sel_dis(gpio_num);
}
}
}
}
#endif // SOC_GPIO_SUPPORT_SLP_SWITCH

49
components/esp_hw_support/sleep_modes.c
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@@ -49,6 +49,7 @@
#include "esp32/rom/rtc.h"
#include "esp32/clk.h"
#include "esp_private/gpio.h"
#include "esp_private/sleep_gpio.h"
#elif CONFIG_IDF_TARGET_ESP32S2
#include "esp32s2/clk.h"
#include "esp32s2/rom/cache.h"
@@ -392,54 +393,6 @@ esp_err_t esp_sleep_cpu_pd_low_init(bool enable)
}
#endif // SOC_PM_SUPPORT_CPU_PD
#if SOC_GPIO_SUPPORT_SLP_SWITCH
#if CONFIG_GPIO_ESP32_SUPPORT_SWITCH_SLP_PULL
static inline void gpio_sleep_mode_config_apply(void)
{
for (gpio_num_t gpio_num = GPIO_NUM_0; gpio_num < GPIO_NUM_MAX; gpio_num++) {
if (GPIO_IS_VALID_GPIO(gpio_num)) {
gpio_sleep_pupd_config_apply(gpio_num);
}
}
}
static inline void gpio_sleep_mode_config_unapply(void)
{
for (gpio_num_t gpio_num = GPIO_NUM_0; gpio_num < GPIO_NUM_MAX; gpio_num++) {
if (GPIO_IS_VALID_GPIO(gpio_num)) {
gpio_sleep_pupd_config_unapply(gpio_num);
}
}
}
#endif
void esp_sleep_config_gpio_isolate(void)
{
ESP_LOGI(TAG, "Configure to isolate all GPIO pins in sleep state");
for (gpio_num_t gpio_num = GPIO_NUM_0; gpio_num < GPIO_NUM_MAX; gpio_num++) {
if (GPIO_IS_VALID_GPIO(gpio_num)) {
gpio_sleep_set_direction(gpio_num, GPIO_MODE_DISABLE);
gpio_sleep_set_pull_mode(gpio_num, GPIO_FLOATING);
}
}
}
void esp_sleep_enable_gpio_switch(bool enable)
{
ESP_LOGI(TAG, "%s automatic switching of GPIO sleep configuration", enable ? "Enable" : "Disable");
for (gpio_num_t gpio_num = GPIO_NUM_0; gpio_num < GPIO_NUM_MAX; gpio_num++) {
if (GPIO_IS_VALID_GPIO(gpio_num)) {
if (enable) {
gpio_sleep_sel_en(gpio_num);
} else {
gpio_sleep_sel_dis(gpio_num);
}
}
}
}
#endif // SOC_GPIO_SUPPORT_SLP_SWITCH
static uint32_t IRAM_ATTR esp_sleep_start(uint32_t pd_flags)
{
// Stop UART output so that output is not lost due to APB frequency change.

2
components/esp_pm/linker.lf
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@@ -19,6 +19,8 @@ entries:
esp_clk:esp_clk_slowclk_cal_set (noflash)
esp_clk:esp_clk_slowclk_cal_get (noflash)
esp_clk:esp_rtc_get_time_us (noflash)
if GPIO_ESP32_SUPPORT_SWITCH_SLP_PULL = y:
sleep_gpio:gpio_sleep_mode_config_apply (noflash)
[mapping:esp_system_pm]
archive: libesp_system.a