mirror of
https://github.com/espressif/esp-idf.git
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110 lines
4.0 KiB
C
110 lines
4.0 KiB
C
/*
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* SPDX-FileCopyrightText: 2024 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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// #define LOG_LOCAL_LEVEL ESP_LOG_DEBUG
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#include <stdlib.h>
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#include <sys/cdefs.h>
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#include "sdkconfig.h"
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#include "esp_log.h"
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#include "esp_check.h"
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#include "esp_heap_caps.h"
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#include "driver/i2s_etm.h"
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#include "i2s_private.h"
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#include "hal/i2s_ll.h"
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#include "esp_private/etm_interface.h"
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#define ETM_MEM_ALLOC_CAPS MALLOC_CAP_DEFAULT
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static const char *TAG = "i2s-etm";
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typedef struct {
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esp_etm_task_t base; /*!< Base ETM task object */
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i2s_chan_handle_t handle; /*!< I2S channel handle of this etm task */
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i2s_etm_task_type_t task_type; /*!< I2S ETM task type */
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} i2s_etm_task_t;
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static esp_err_t s_i2s_del_etm_event(esp_etm_event_t *event)
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{
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free(event);
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return ESP_OK;
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}
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static esp_err_t s_i2s_del_etm_task(esp_etm_task_t *task)
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{
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i2s_etm_task_t *i2s_task = __containerof(task, i2s_etm_task_t, base);
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if (i2s_task->task_type == I2S_ETM_TASK_START) {
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// The i2s start no longer be controlled by etm
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i2s_task->handle->is_etm_start = false;
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} else {
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// The i2s stop no longer be controlled by etm
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i2s_task->handle->is_etm_stop = false;
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}
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free(i2s_task);
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return ESP_OK;
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}
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esp_err_t i2s_new_etm_event(i2s_chan_handle_t handle, const i2s_etm_event_config_t *config, esp_etm_event_handle_t *out_event)
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{
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esp_err_t ret = ESP_OK;
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ESP_RETURN_ON_FALSE(handle && config && out_event, ESP_ERR_INVALID_ARG, TAG, "invalid argument");
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ESP_RETURN_ON_FALSE(config->event_type < I2S_ETM_EVENT_MAX, ESP_ERR_INVALID_ARG, TAG, "invalid event type");
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esp_etm_event_t *event = heap_caps_calloc(1, sizeof(esp_etm_event_t), ETM_MEM_ALLOC_CAPS);
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ESP_RETURN_ON_FALSE(event, ESP_ERR_NO_MEM, TAG, "no memory for ETM event");
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// Get the event id from the I2S ETM event table
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uint32_t event_id = I2S_LL_ETM_EVENT_TABLE(handle->controller->id, handle->dir, config->event_type);
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// If the event type is threshold, set the threshold to the hardware
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if (config->event_type == I2S_ETM_EVENT_REACH_THRESH) {
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// Check if the threshold within the supported range
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ESP_GOTO_ON_FALSE(config->threshold <= I2S_LL_ETM_MAX_THRESH_NUM, ESP_ERR_INVALID_ARG, err, TAG,
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"exceed the max threshold %"PRIu32, (uint32_t)I2S_LL_ETM_MAX_THRESH_NUM);
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if (handle->dir == I2S_DIR_TX) {
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i2s_ll_tx_set_etm_threshold(handle->controller->hal.dev, config->threshold);
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} else {
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i2s_ll_rx_set_etm_threshold(handle->controller->hal.dev, config->threshold);
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}
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}
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// fill the ETM event object
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event->event_id = event_id;
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event->trig_periph = ETM_TRIG_PERIPH_I2S;
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event->del = s_i2s_del_etm_event;
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*out_event = event;
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return ret;
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err:
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free(event);
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return ret;
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}
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esp_err_t i2s_new_etm_task(i2s_chan_handle_t handle, const i2s_etm_task_config_t *config, esp_etm_task_handle_t *out_task)
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{
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ESP_RETURN_ON_FALSE(handle && config && out_task, ESP_ERR_INVALID_ARG, TAG, "invalid argument");
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ESP_RETURN_ON_FALSE(config->task_type < I2S_ETM_TASK_MAX, ESP_ERR_INVALID_ARG, TAG, "invalid task type");
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i2s_etm_task_t *task = heap_caps_calloc(1, sizeof(i2s_etm_task_t), ETM_MEM_ALLOC_CAPS);
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ESP_RETURN_ON_FALSE(task, ESP_ERR_NO_MEM, TAG, "no memory for ETM task");
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// Get the task id from the I2S ETM task table
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uint32_t task_id = I2S_LL_ETM_TASK_TABLE(handle->controller->id, handle->dir, config->task_type);
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// fill the ETM task object
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task->base.task_id = task_id;
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task->base.trig_periph = ETM_TRIG_PERIPH_I2S;
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task->base.del = s_i2s_del_etm_task;
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task->handle = handle;
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task->task_type = config->task_type;
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if (config->task_type == I2S_ETM_TASK_START) {
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// The i2s start will be controlled by etm
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handle->is_etm_start = true;
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} else {
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// The i2s stop will be controlled by etm
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handle->is_etm_stop = true;
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}
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*out_task = &(task->base);
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return ESP_OK;
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}
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