mirror of
https://github.com/espressif/esp-idf.git
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132 lines
4.0 KiB
C
132 lines
4.0 KiB
C
/*
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* SPDX-FileCopyrightText: 2010-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/*
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* ets_timer module implements a set of legacy timer APIs which are
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* used by the WiFi driver. This is done on top of the newer esp_timer APIs.
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* Applications should not use ets_timer functions, as they may change without
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* notice.
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*/
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#include <string.h>
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#include "esp_types.h"
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#include "esp_log.h"
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#include "esp_attr.h"
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#include "esp_intr_alloc.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/semphr.h"
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#include "sdkconfig.h"
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#include "esp_timer.h"
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// for ETSTimer type
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#if CONFIG_IDF_TARGET_ESP32
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#include "esp32/rom/ets_sys.h"
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#elif CONFIG_IDF_TARGET_ESP32S2
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#include "esp32s2/rom/ets_sys.h"
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#elif CONFIG_IDF_TARGET_ESP32S3
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#include "esp32s3/rom/ets_sys.h"
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#elif CONFIG_IDF_TARGET_ESP32C3
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#include "esp32c3/rom/ets_sys.h"
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#elif CONFIG_IDF_TARGET_ESP32C2
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#include "esp32c2/rom/ets_sys.h"
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#elif CONFIG_IDF_TARGET_ESP32C6
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#include "esp32c6/rom/ets_sys.h"
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#elif CONFIG_IDF_TARGET_ESP32H2
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#include "esp32h2/rom/ets_sys.h"
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#elif CONFIG_IDF_TARGET_ESP32P4
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#include "esp32p4/rom/ets_sys.h"
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#endif
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/* We abuse 'timer_arg' field of ETSTimer structure to hold a pointer to esp_timer */
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#define ESP_TIMER(p_ets_timer) ((esp_timer_handle_t) (p_ets_timer)->timer_arg)
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/* We abuse 'timer_expire' field of ETSTimer structure to hold a magic value
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* signifying that the contents of the timer was zeroed out.
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*/
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#define TIMER_INITIALIZED_FIELD(p_ets_timer) ((p_ets_timer)->timer_expire)
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#define TIMER_INITIALIZED_VAL 0x12121212
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static IRAM_ATTR bool timer_initialized(ETSTimer *ptimer)
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{
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return TIMER_INITIALIZED_FIELD(ptimer) == TIMER_INITIALIZED_VAL;
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}
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void ets_timer_setfn(ETSTimer *ptimer, ETSTimerFunc *pfunction, void *parg)
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{
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if (!timer_initialized(ptimer)) {
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memset(ptimer, 0, sizeof(*ptimer));
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TIMER_INITIALIZED_FIELD(ptimer) = TIMER_INITIALIZED_VAL;
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}
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if (ESP_TIMER(ptimer) == NULL) {
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const esp_timer_create_args_t create_args = {
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.callback = pfunction,
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.arg = parg,
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.name = "ETSTimer",
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.dispatch_method = ESP_TIMER_TASK
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};
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ESP_ERROR_CHECK( esp_timer_create(&create_args, (esp_timer_handle_t*)&(ptimer->timer_arg)) );
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}
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}
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void IRAM_ATTR ets_timer_arm_us(ETSTimer *ptimer, uint32_t time_us, bool repeat_flag)
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{
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assert(timer_initialized(ptimer));
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esp_timer_stop(ESP_TIMER(ptimer)); // no error check
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if (!repeat_flag) {
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ESP_ERROR_CHECK( esp_timer_start_once(ESP_TIMER(ptimer), time_us) );
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} else {
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ESP_ERROR_CHECK( esp_timer_start_periodic(ESP_TIMER(ptimer), time_us) );
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}
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}
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void IRAM_ATTR ets_timer_arm(ETSTimer *ptimer, uint32_t time_ms, bool repeat_flag)
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{
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uint64_t time_us = 1000LL * (uint64_t) time_ms;
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assert(timer_initialized(ptimer));
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esp_timer_stop(ESP_TIMER(ptimer)); // no error check
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if (!repeat_flag) {
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ESP_ERROR_CHECK( esp_timer_start_once(ESP_TIMER(ptimer), time_us) );
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} else {
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ESP_ERROR_CHECK( esp_timer_start_periodic(ESP_TIMER(ptimer), time_us) );
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}
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}
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void ets_timer_done(ETSTimer *ptimer)
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{
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if (timer_initialized(ptimer)) {
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esp_timer_delete(ESP_TIMER(ptimer));
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ptimer->timer_arg = NULL;
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TIMER_INITIALIZED_FIELD(ptimer) = 0;
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}
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}
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void IRAM_ATTR ets_timer_disarm(ETSTimer *ptimer)
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{
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if (timer_initialized(ptimer)) {
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esp_timer_stop(ESP_TIMER(ptimer));
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}
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}
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void ets_timer_init(void)
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{
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}
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void ets_timer_deinit(void)
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{
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}
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void os_timer_setfn(ETSTimer *ptimer, ETSTimerFunc *pfunction, void *parg) __attribute__((alias("ets_timer_setfn")));
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void os_timer_disarm(ETSTimer *ptimer) __attribute__((alias("ets_timer_disarm")));
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void os_timer_arm_us(ETSTimer *ptimer,uint32_t u_seconds,bool repeat_flag) __attribute__((alias("ets_timer_arm_us")));
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void os_timer_arm(ETSTimer *ptimer,uint32_t milliseconds,bool repeat_flag) __attribute__((alias("ets_timer_arm")));
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void os_timer_done(ETSTimer *ptimer) __attribute__((alias("ets_timer_done")));
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