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cpu/esp32: port periph/pm to ESP-IDF sleep API

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This commit is contained in:
Gunar Schorcht 2022-07-15 16:33:10 +02:00
parent 295f4a5b04
commit a74a19e9f9
1 changed files with 29 additions and 5 deletions
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34
cpu/esp32/periph/pm.c
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@ -1,5 +1,5 @@
/* /*
* Copyright (C) 2018 Gunar Schorcht * Copyright (C) 2022 Gunar Schorcht
* *
* This file is subject to the terms and conditions of the GNU Lesser * This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level * General Public License v2.1. See the file LICENSE in the top level
@ -21,10 +21,14 @@
/* RIOT headers have to be included before ESP-IDF headers! */ /* RIOT headers have to be included before ESP-IDF headers! */
#include "esp_attr.h" #include "esp_attr.h"
#include "gpio_arch.h" #include "gpio_arch.h"
#include "irq.h"
#include "periph/rtc.h" #include "periph/rtc.h"
#include "rtt_arch.h" #include "rtt_arch.h"
#include "syscalls.h" #include "syscalls.h"
#include "periph/rtc.h"
#include "periph/uart.h"
/* ESP-IDF headers */ /* ESP-IDF headers */
#include "esp_sleep.h" #include "esp_sleep.h"
#include "rom/rtc.h" #include "rom/rtc.h"
@ -32,6 +36,8 @@
#include "soc/rtc.h" #include "soc/rtc.h"
#include "soc/rtc_cntl_reg.h" #include "soc/rtc_cntl_reg.h"
#include "esp_idf_api/uart.h"
#define ENABLE_DEBUG 0 #define ENABLE_DEBUG 0
#include "debug.h" #include "debug.h"
@ -62,8 +68,15 @@ static inline void pm_set_lowest_normal(void)
#ifndef MODULE_ESP_QEMU #ifndef MODULE_ESP_QEMU
/* passive wait for interrupt to leave lowest power mode */ /* passive wait for interrupt to leave lowest power mode */
#if __xtensa__
__asm__ volatile ("waiti 0"); __asm__ volatile ("waiti 0");
#else
/* This function is entered with interrupts disabled, so we have to enable
* interrupts here to wait for an interrupt. */
irq_enable();
__asm__ volatile ("wfi");
irq_disable();
#endif
/* reset system watchdog timer */ /* reset system watchdog timer */
system_wdt_feed(); system_wdt_feed();
#endif #endif
@ -118,7 +131,8 @@ void pm_set(unsigned mode)
return; return;
} }
DEBUG ("%s enter to power mode %d @%u\n", __func__, mode, system_get_time()); DEBUG ("%s enter to power mode %d @%" PRIu32 "\n",
__func__, mode, system_get_time());
/* flush stdout */ /* flush stdout */
fflush(stdout); fflush(stdout);
@ -147,6 +161,16 @@ void pm_set(unsigned mode)
/* Prepare GPIOs as wakeup source */ /* Prepare GPIOs as wakeup source */
gpio_pm_sleep_enter(mode); gpio_pm_sleep_enter(mode);
extern esp_err_t esp_sleep_enable_uart_wakeup(int uart);
#if (ESP_PM_WUP_UART0 > 2)
esp_idf_uart_set_wakeup_threshold(UART_DEV(0), ESP_PM_WUP_UART0);
esp_sleep_enable_uart_wakeup(0);
#endif
#if (ESP_PM_WUP_UART1 > 2)
esp_idf_uart_set_wakeup_threshold(UART_DEV(1), ESP_PM_WUP_UART1);
esp_sleep_enable_uart_wakeup(1);
#endif
if (mode == ESP_PM_DEEP_SLEEP) { if (mode == ESP_PM_DEEP_SLEEP) {
esp_deep_sleep_start(); esp_deep_sleep_start();
/* waking up from deep-sleep leads to a DEEPSLEEP_RESET */ /* waking up from deep-sleep leads to a DEEPSLEEP_RESET */
@ -164,8 +188,8 @@ void pm_set(unsigned mode)
gpio_pm_sleep_exit(wakeup_reason); gpio_pm_sleep_exit(wakeup_reason);
rtt_pm_sleep_exit(wakeup_reason); rtt_pm_sleep_exit(wakeup_reason);
DEBUG ("%s exit from power mode %d @%u with reason %d\n", __func__, DEBUG ("%s exit from power mode %d @%" PRIu32 " with reason %d\n",
mode, system_get_time(), wakeup_reason); __func__, mode, system_get_time(), wakeup_reason);
/* restart WiFi if necessary */ /* restart WiFi if necessary */
if (IS_USED(MODULE_ESP_WIFI_ANY) && (esp_wifi_start() != ESP_OK)) { if (IS_USED(MODULE_ESP_WIFI_ANY) && (esp_wifi_start() != ESP_OK)) {