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deep sleep: add functions to check wakeup cause

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This change adds esp_deep_sleep_get_wakeup_cause, which returns the
source which has caused wakeup from deep sleep.

Similar to esp_deep_sleep_get_ext1_wakeup_status, a function is added
to check touch pad wakeup status: esp_deep_sleep_get_touchpad_wakeup_status.
This function returns the touch pad which has caused wakeup.
This commit is contained in:
Ivan Grokhotkov
2017-01-27 23:48:00 +08:00
parent 07ff47f103
commit a64181f14f
3 changed files with 76 additions and 3 deletions
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35
components/esp32/deep_sleep.c
View File

@@ -191,6 +191,16 @@ esp_err_t esp_deep_sleep_enable_touchpad_wakeup()
return ESP_OK;
}
touch_pad_t esp_deep_sleep_get_touchpad_wakeup_status()
{
if (esp_deep_sleep_get_wakeup_cause() != ESP_DEEP_SLEEP_WAKEUP_TOUCHPAD) {
return TOUCH_PAD_MAX;
}
uint32_t touch_mask = REG_GET_FIELD(SENS_SAR_TOUCH_CTRL2_REG, SENS_TOUCH_MEAS_EN);
assert(touch_mask != 0 && "wakeup reason is RTC_TOUCH_TRIG_EN but SENS_TOUCH_MEAS_EN is zero");
return (touch_pad_t) (__builtin_ffs(touch_mask) - 1);
}
esp_err_t esp_deep_sleep_enable_ext0_wakeup(gpio_num_t gpio_num, int level)
{
if (level < 0 || level > 1) {
@@ -294,8 +304,7 @@ static void ext1_wakeup_prepare()
uint64_t esp_deep_sleep_get_ext1_wakeup_status()
{
int wakeup_reason = REG_GET_FIELD(RTC_CNTL_WAKEUP_STATE_REG, RTC_CNTL_WAKEUP_CAUSE);
if (wakeup_reason != RTC_EXT_EVENT1_TRIG) {
if (esp_deep_sleep_get_wakeup_cause() != ESP_DEEP_SLEEP_WAKEUP_EXT1) {
return 0;
}
uint32_t status = REG_GET_FIELD(RTC_CNTL_EXT_WAKEUP1_STATUS_REG, RTC_CNTL_EXT_WAKEUP1_STATUS);
@@ -314,6 +323,28 @@ uint64_t esp_deep_sleep_get_ext1_wakeup_status()
return gpio_mask;
}
esp_deep_sleep_wakeup_cause_t esp_deep_sleep_get_wakeup_cause()
{
if (rtc_get_reset_reason(0) != DEEPSLEEP_RESET) {
return ESP_DEEP_SLEEP_WAKEUP_UNDEFINED;
}
uint32_t wakeup_cause = REG_GET_FIELD(RTC_CNTL_WAKEUP_STATE_REG, RTC_CNTL_WAKEUP_CAUSE);
if (wakeup_cause & RTC_EXT_EVENT0_TRIG) {
return ESP_DEEP_SLEEP_WAKEUP_EXT0;
} else if (wakeup_cause & RTC_EXT_EVENT1_TRIG) {
return ESP_DEEP_SLEEP_WAKEUP_EXT1;
} else if (wakeup_cause & RTC_TIMER_EXPIRE) {
return ESP_DEEP_SLEEP_WAKEUP_TIMER;
} else if (wakeup_cause & RTC_TOUCH_TRIG) {
return ESP_DEEP_SLEEP_WAKEUP_TOUCHPAD;
} else if (wakeup_cause & RTC_SAR_TRIG) {
return ESP_DEEP_SLEEP_WAKEUP_ULP;
} else {
return ESP_DEEP_SLEEP_WAKEUP_UNDEFINED;
}
}
esp_err_t esp_deep_sleep_pd_config(esp_deep_sleep_pd_domain_t domain,
esp_deep_sleep_pd_option_t option)
{

31
components/esp32/include/esp_deep_sleep.h
View File

@@ -17,6 +17,7 @@
#include <stdint.h>
#include "esp_err.h"
#include "driver/gpio.h"
#include "driver/touch_pad.h"
#ifdef __cplusplus
extern "C" {
@@ -50,6 +51,18 @@ typedef enum {
ESP_PD_OPTION_AUTO //!< Keep power domain enabled in deep sleep, if it is needed by one of the wakeup options. Otherwise power it down.
} esp_deep_sleep_pd_option_t;
/**
* @brief Deep sleep wakeup cause
*/
typedef enum {
ESP_DEEP_SLEEP_WAKEUP_UNDEFINED, //! Wakeup was not caused by deep sleep
ESP_DEEP_SLEEP_WAKEUP_EXT0, //! Wakeup caused by external signal using RTC_IO
ESP_DEEP_SLEEP_WAKEUP_EXT1, //! Wakeup caused by external signal using RTC_CNTL
ESP_DEEP_SLEEP_WAKEUP_TIMER, //! Wakeup caused by timer
ESP_DEEP_SLEEP_WAKEUP_TOUCHPAD, //! Wakeup caused by touchpad
ESP_DEEP_SLEEP_WAKEUP_ULP, //! Wakeup caused by ULP program
} esp_deep_sleep_wakeup_cause_t;
/**
* @brief Enable wakeup by ULP coprocessor
@@ -86,6 +99,15 @@ esp_err_t esp_deep_sleep_enable_timer_wakeup(uint64_t time_in_us);
*/
esp_err_t esp_deep_sleep_enable_touchpad_wakeup();
/**
* @brief Get the touch pad which caused wakeup
*
* If wakeup was caused by another source, this function will return TOUCH_PAD_MAX;
*
* @return touch pad which caused wakeup
*/
touch_pad_t esp_deep_sleep_get_touchpad_wakeup_status();
/**
* @brief Enable wakeup using a pin
*
@@ -210,6 +232,15 @@ void esp_deep_sleep(uint64_t time_in_us) __attribute__((noreturn));
*/
void system_deep_sleep(uint64_t time_in_us) __attribute__((noreturn, deprecated));
/**
* @brief Get the source which caused deep sleep wakeup
*
* @return wakeup cause, or ESP_DEEP_SLEEP_WAKEUP_UNDEFINED if reset reason is other than deep sleep reset.
*/
esp_deep_sleep_wakeup_cause_t esp_deep_sleep_get_wakeup_cause();
/**
* @brief Default stub to run on wake from deep sleep.
*