kopia lustrzana https://github.com/espressif/esp-idf
123 wiersze
4.1 KiB
C
123 wiersze
4.1 KiB
C
/*
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* SPDX-FileCopyrightText: 2020-2023 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 "hal/gdma_hal.h"
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#include "hal/gdma_ll.h"
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#include "soc/gdma_periph.h"
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#include "esp_private/gdma.h"
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#include "esp_private/etm_interface.h"
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#include "gdma_priv.h"
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#define ETM_MEM_ALLOC_CAPS MALLOC_CAP_DEFAULT
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static const char *TAG = "gdma-etm";
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typedef struct gdma_etm_task_t {
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esp_etm_task_t base;
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gdma_channel_t *chan;
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} gdma_etm_task_t;
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static esp_err_t gdma_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 gdma_del_etm_task(esp_etm_task_t *task)
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{
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gdma_etm_task_t *gdma_task = __containerof(task, gdma_etm_task_t, base);
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gdma_channel_t *dma_chan = gdma_task->chan;
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gdma_pair_t *pair = dma_chan->pair;
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gdma_group_t *group = pair->group;
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gdma_hal_context_t* hal = &group->hal;
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gdma_hal_enable_etm_task(hal, pair->pair_id, dma_chan->direction, false);
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free(gdma_task);
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dma_chan->flags.start_stop_by_etm = false;
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return ESP_OK;
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}
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esp_err_t gdma_new_etm_event(gdma_channel_handle_t dma_chan, const gdma_etm_event_config_t *config, esp_etm_event_handle_t *out_event)
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{
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esp_etm_event_t *event = NULL;
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esp_err_t ret = ESP_OK;
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ESP_GOTO_ON_FALSE(dma_chan && config && out_event, ESP_ERR_INVALID_ARG, err, TAG, "invalid argument");
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ESP_GOTO_ON_FALSE(config->event_type < GDMA_ETM_EVENT_MAX, ESP_ERR_INVALID_ARG, err, TAG, "invalid event type");
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event = heap_caps_calloc(1, sizeof(esp_etm_event_t), ETM_MEM_ALLOC_CAPS);
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ESP_GOTO_ON_FALSE(event, ESP_ERR_NO_MEM, err, TAG, "no memory for ETM event");
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gdma_pair_t *pair = dma_chan->pair;
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gdma_group_t *group = pair->group;
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uint32_t event_id = 0;
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if (dma_chan->direction == GDMA_CHANNEL_DIRECTION_RX) {
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event_id = GDMA_LL_RX_ETM_EVENT_TABLE(group->group_id, pair->pair_id, config->event_type);
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} else {
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event_id = GDMA_LL_TX_ETM_EVENT_TABLE(group->group_id, pair->pair_id, config->event_type);
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}
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ESP_GOTO_ON_FALSE(event_id != 0, ESP_ERR_NOT_SUPPORTED, err, TAG, "not supported event type");
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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_GDMA;
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event->del = gdma_del_etm_event;
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*out_event = event;
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return ESP_OK;
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err:
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if (event) {
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gdma_del_etm_event(event);
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}
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return ret;
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}
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esp_err_t gdma_new_etm_task(gdma_channel_handle_t dma_chan, const gdma_etm_task_config_t *config, esp_etm_task_handle_t *out_task)
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{
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gdma_etm_task_t *task = NULL;
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esp_err_t ret = ESP_OK;
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ESP_GOTO_ON_FALSE(dma_chan && config && out_task, ESP_ERR_INVALID_ARG, err, TAG, "invalid argument");
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ESP_GOTO_ON_FALSE(config->task_type < GDMA_ETM_TASK_MAX, ESP_ERR_INVALID_ARG, err, TAG, "invalid task type");
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task = heap_caps_calloc(1, sizeof(gdma_etm_task_t), ETM_MEM_ALLOC_CAPS);
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ESP_GOTO_ON_FALSE(task, ESP_ERR_NO_MEM, err, TAG, "no memory for ETM task");
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gdma_pair_t *pair = dma_chan->pair;
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gdma_group_t *group = pair->group;
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gdma_hal_context_t* hal = &group->hal;
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uint32_t task_id = 0;
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gdma_hal_enable_etm_task(hal, pair->pair_id, dma_chan->direction, true);
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if (dma_chan->direction == GDMA_CHANNEL_DIRECTION_RX) {
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task_id = GDMA_LL_RX_ETM_TASK_TABLE(group->group_id, pair->pair_id, config->task_type);
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} else {
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task_id = GDMA_LL_TX_ETM_TASK_TABLE(group->group_id, pair->pair_id, config->task_type);
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}
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ESP_GOTO_ON_FALSE(task_id != 0, ESP_ERR_NOT_SUPPORTED, err, TAG, "not supported task type");
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// set a flag, now the GDMA channel is start/stop by ETM subsystem
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dma_chan->flags.start_stop_by_etm = true;
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// fill the ETM task object
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task->chan = dma_chan;
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task->base.task_id = task_id;
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task->base.trig_periph = ETM_TRIG_PERIPH_GDMA;
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task->base.del = gdma_del_etm_task;
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*out_task = &(task->base);
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return ESP_OK;
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err:
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if (task) {
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gdma_del_etm_task(&task->base);
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}
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return ret;
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}
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