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sleep: add support for GPIO and UART wakeup from light sleep

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This commit is contained in:
Ivan Grokhotkov
2018-08-14 03:42:03 +03:00
parent 002d913ab6
commit 75629b7fc3
2 changed files with 77 additions and 9 deletions
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47
components/esp32/sleep_modes.c
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@@ -34,6 +34,7 @@
#include "soc/dport_reg.h"
#include "soc/rtc_wdt.h"
#include "driver/rtc_io.h"
#include "driver/uart.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "sdkconfig.h"
@@ -363,19 +364,20 @@ esp_err_t esp_sleep_disable_wakeup_source(esp_sleep_source_t source)
if (CHECK_SOURCE(source, ESP_SLEEP_WAKEUP_TIMER, RTC_TIMER_TRIG_EN)) {
s_config.wakeup_triggers &= ~RTC_TIMER_TRIG_EN;
s_config.sleep_duration = 0;
}
else if (CHECK_SOURCE(source, ESP_SLEEP_WAKEUP_EXT0, RTC_EXT0_TRIG_EN)) {
} else if (CHECK_SOURCE(source, ESP_SLEEP_WAKEUP_EXT0, RTC_EXT0_TRIG_EN)) {
s_config.ext0_rtc_gpio_num = 0;
s_config.ext0_trigger_level = 0;
s_config.wakeup_triggers &= ~RTC_EXT0_TRIG_EN;
}
else if (CHECK_SOURCE(source, ESP_SLEEP_WAKEUP_EXT1, RTC_EXT1_TRIG_EN)) {
} else if (CHECK_SOURCE(source, ESP_SLEEP_WAKEUP_EXT1, RTC_EXT1_TRIG_EN)) {
s_config.ext1_rtc_gpio_mask = 0;
s_config.ext1_trigger_mode = 0;
s_config.wakeup_triggers &= ~RTC_EXT1_TRIG_EN;
}
else if (CHECK_SOURCE(source, ESP_SLEEP_WAKEUP_TOUCHPAD, RTC_TOUCH_TRIG_EN)) {
} else if (CHECK_SOURCE(source, ESP_SLEEP_WAKEUP_TOUCHPAD, RTC_TOUCH_TRIG_EN)) {
s_config.wakeup_triggers &= ~RTC_TOUCH_TRIG_EN;
} else if (CHECK_SOURCE(source, ESP_SLEEP_WAKEUP_GPIO, RTC_GPIO_TRIG_EN)) {
s_config.wakeup_triggers &= ~RTC_GPIO_TRIG_EN;
} else if (CHECK_SOURCE(source, ESP_SLEEP_WAKEUP_UART, (RTC_UART0_TRIG_EN | RTC_UART1_TRIG_EN))) {
s_config.wakeup_triggers &= ~(RTC_UART0_TRIG_EN | RTC_UART1_TRIG_EN);
}
#ifdef CONFIG_ULP_COPROC_ENABLED
else if (CHECK_SOURCE(source, ESP_SLEEP_WAKEUP_ULP, RTC_ULP_TRIG_EN)) {
@@ -561,6 +563,29 @@ uint64_t esp_sleep_get_ext1_wakeup_status()
return gpio_mask;
}
esp_err_t esp_sleep_enable_gpio_wakeup()
{
if (s_config.wakeup_triggers & (RTC_TOUCH_TRIG_EN | RTC_ULP_TRIG_EN)) {
ESP_LOGE(TAG, "Conflicting wake-up triggers: touch / ULP");
return ESP_ERR_INVALID_STATE;
}
s_config.wakeup_triggers |= RTC_GPIO_TRIG_EN;
return ESP_OK;
}
esp_err_t esp_sleep_enable_uart_wakeup(int uart_num)
{
if (uart_num == UART_NUM_0) {
s_config.wakeup_triggers |= RTC_UART0_TRIG_EN;
} else if (uart_num == UART_NUM_1) {
s_config.wakeup_triggers |= RTC_UART1_TRIG_EN;
} else {
return ESP_ERR_INVALID_ARG;
}
return ESP_OK;
}
esp_sleep_wakeup_cause_t esp_sleep_get_wakeup_cause()
{
if (rtc_get_reset_reason(0) != DEEPSLEEP_RESET) {
@@ -578,6 +603,10 @@ esp_sleep_wakeup_cause_t esp_sleep_get_wakeup_cause()
return ESP_SLEEP_WAKEUP_TOUCHPAD;
} else if (wakeup_cause & RTC_ULP_TRIG_EN) {
return ESP_SLEEP_WAKEUP_ULP;
} else if (wakeup_cause & RTC_GPIO_TRIG_EN) {
return ESP_SLEEP_WAKEUP_GPIO;
} else if (wakeup_cause & (RTC_UART0_TRIG_EN | RTC_UART1_TRIG_EN)) {
return ESP_SLEEP_WAKEUP_UART;
} else {
return ESP_SLEEP_WAKEUP_UNDEFINED;
}
@@ -620,10 +649,10 @@ static uint32_t get_power_down_flags()
s_config.pd_options[ESP_PD_DOMAIN_RTC_FAST_MEM] = ESP_PD_OPTION_ON;
}
// RTC_PERIPH is needed for EXT0 wakeup.
// If RTC_PERIPH is auto, and EXT0 isn't enabled, power down RTC_PERIPH.
// RTC_PERIPH is needed for EXT0 wakeup and GPIO wakeup.
// If RTC_PERIPH is auto, and EXT0/GPIO aren't enabled, power down RTC_PERIPH.
if (s_config.pd_options[ESP_PD_DOMAIN_RTC_PERIPH] == ESP_PD_OPTION_AUTO) {
if (s_config.wakeup_triggers & RTC_EXT0_TRIG_EN) {
if (s_config.wakeup_triggers & (RTC_EXT0_TRIG_EN | RTC_GPIO_TRIG_EN)) {
s_config.pd_options[ESP_PD_DOMAIN_RTC_PERIPH] = ESP_PD_OPTION_ON;
} else if (s_config.wakeup_triggers & (RTC_TOUCH_TRIG_EN | RTC_ULP_TRIG_EN)) {
// In both rev. 0 and rev. 1 of ESP32, forcing power up of RTC_PERIPH