esp-idf/components/esp_hw_support/sleep_event.c

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/*
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stddef.h>
#include <string.h>
#include "sdkconfig.h"
#include "soc/soc_caps.h"
#include "esp_private/sleep_event.h"
#include "esp_sleep.h"
#include "esp_log.h"
#include "esp_check.h"
#include "freertos/FreeRTOS.h"
#if CONFIG_ESP_SLEEP_EVENT_CALLBACKS
esp_sleep_event_cbs_config_t g_sleep_event_cbs_config;
static portMUX_TYPE s_sleep_event_mutex = portMUX_INITIALIZER_UNLOCKED;
esp_err_t esp_sleep_register_event_callback(esp_sleep_event_cb_index_t event_id, const esp_sleep_event_cb_config_t *event_cb_conf) {
if (event_cb_conf == NULL || event_id >= SLEEP_EVENT_CB_INDEX_NUM) {
return ESP_ERR_INVALID_ARG;
}
esp_sleep_event_cb_config_t *new_config = (esp_sleep_event_cb_config_t *)heap_caps_malloc(sizeof(esp_sleep_event_cb_config_t), MALLOC_CAP_INTERNAL);
if (new_config == NULL) {
return ESP_ERR_NO_MEM; /* Memory allocation failed */
}
portENTER_CRITICAL(&s_sleep_event_mutex);
esp_sleep_event_cb_config_t **current_ptr = &(g_sleep_event_cbs_config.sleep_event_cb_config[event_id]);
while (*current_ptr != NULL) {
if (((*current_ptr)->cb) == (event_cb_conf->cb)) {
free(new_config);
portEXIT_CRITICAL(&s_sleep_event_mutex);
return ESP_FAIL;
}
current_ptr = &((*current_ptr)->next);
}
*new_config = *event_cb_conf;
while (*current_ptr != NULL && (*current_ptr)->prior <= new_config->prior) {
current_ptr = &((*current_ptr)->next);
}
new_config->next = *current_ptr;
*current_ptr = new_config;
portEXIT_CRITICAL(&s_sleep_event_mutex);
return ESP_OK;
}
esp_err_t esp_sleep_unregister_event_callback(esp_sleep_event_cb_index_t event_id, esp_sleep_event_cb_t cb) {
if (cb == NULL || event_id >= SLEEP_EVENT_CB_INDEX_NUM) {
return ESP_ERR_INVALID_ARG;
}
portENTER_CRITICAL(&s_sleep_event_mutex);
esp_sleep_event_cb_config_t **current_ptr = &(g_sleep_event_cbs_config.sleep_event_cb_config[event_id]);
while (*current_ptr != NULL) {
if (((*current_ptr)->cb) == cb) {
esp_sleep_event_cb_config_t *temp = *current_ptr;
*current_ptr = (*current_ptr)->next;
free(temp);
break;
}
current_ptr = &((*current_ptr)->next);
}
portEXIT_CRITICAL(&s_sleep_event_mutex);
return ESP_OK;
}
#endif
#if CONFIG_ESP_SLEEP_EVENT_CALLBACKS
esp_err_t IRAM_ATTR esp_sleep_execute_event_callbacks(esp_sleep_event_cb_index_t event_id, void *ext_arg)
{
if (event_id >= SLEEP_EVENT_CB_INDEX_NUM) {
return ESP_ERR_INVALID_ARG;
}
esp_sleep_event_cb_config_t *current = g_sleep_event_cbs_config.sleep_event_cb_config[event_id];
while (current != NULL) {
(current->cb)(current->user_arg, ext_arg);
current = current->next;
}
return ESP_OK;
}
#else
esp_err_t IRAM_ATTR esp_sleep_execute_event_callbacks(esp_sleep_event_cb_index_t event_id, void *ext_arg)
{
return ESP_OK;
}
#endif