/* * SPDX-FileCopyrightText: 2020-2023 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ // #define LOG_LOCAL_LEVEL ESP_LOG_DEBUG #include #include #include "sdkconfig.h" #include "esp_log.h" #include "esp_check.h" #include "esp_heap_caps.h" #include "hal/gdma_hal.h" #include "hal/gdma_ll.h" #include "soc/gdma_periph.h" #include "esp_private/gdma.h" #include "esp_private/etm_interface.h" #include "gdma_priv.h" #define ETM_MEM_ALLOC_CAPS MALLOC_CAP_DEFAULT static const char *TAG = "gdma-etm"; typedef struct gdma_etm_task_t { esp_etm_task_t base; gdma_channel_t *chan; } gdma_etm_task_t; static esp_err_t gdma_del_etm_event(esp_etm_event_t *event) { free(event); return ESP_OK; } static esp_err_t gdma_del_etm_task(esp_etm_task_t *task) { gdma_etm_task_t *gdma_task = __containerof(task, gdma_etm_task_t, base); gdma_channel_t *dma_chan = gdma_task->chan; gdma_pair_t *pair = dma_chan->pair; gdma_group_t *group = pair->group; gdma_hal_context_t* hal = &group->hal; gdma_hal_enable_etm_task(hal, pair->pair_id, dma_chan->direction, false); free(gdma_task); dma_chan->flags.start_stop_by_etm = false; return ESP_OK; } 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) { esp_etm_event_t *event = NULL; esp_err_t ret = ESP_OK; ESP_GOTO_ON_FALSE(dma_chan && config && out_event, ESP_ERR_INVALID_ARG, err, TAG, "invalid argument"); ESP_GOTO_ON_FALSE(config->event_type < GDMA_ETM_EVENT_MAX, ESP_ERR_INVALID_ARG, err, TAG, "invalid event type"); event = heap_caps_calloc(1, sizeof(esp_etm_event_t), ETM_MEM_ALLOC_CAPS); ESP_GOTO_ON_FALSE(event, ESP_ERR_NO_MEM, err, TAG, "no memory for ETM event"); gdma_pair_t *pair = dma_chan->pair; gdma_group_t *group = pair->group; uint32_t event_id = 0; if (dma_chan->direction == GDMA_CHANNEL_DIRECTION_RX) { event_id = GDMA_LL_RX_ETM_EVENT_TABLE(group->group_id, pair->pair_id, config->event_type); } else { event_id = GDMA_LL_TX_ETM_EVENT_TABLE(group->group_id, pair->pair_id, config->event_type); } ESP_GOTO_ON_FALSE(event_id != 0, ESP_ERR_NOT_SUPPORTED, err, TAG, "not supported event type"); // fill the ETM event object event->event_id = event_id; event->trig_periph = ETM_TRIG_PERIPH_GDMA; event->del = gdma_del_etm_event; *out_event = event; return ESP_OK; err: if (event) { gdma_del_etm_event(event); } return ret; } 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) { gdma_etm_task_t *task = NULL; esp_err_t ret = ESP_OK; ESP_GOTO_ON_FALSE(dma_chan && config && out_task, ESP_ERR_INVALID_ARG, err, TAG, "invalid argument"); ESP_GOTO_ON_FALSE(config->task_type < GDMA_ETM_TASK_MAX, ESP_ERR_INVALID_ARG, err, TAG, "invalid task type"); task = heap_caps_calloc(1, sizeof(gdma_etm_task_t), ETM_MEM_ALLOC_CAPS); ESP_GOTO_ON_FALSE(task, ESP_ERR_NO_MEM, err, TAG, "no memory for ETM task"); gdma_pair_t *pair = dma_chan->pair; gdma_group_t *group = pair->group; gdma_hal_context_t* hal = &group->hal; uint32_t task_id = 0; gdma_hal_enable_etm_task(hal, pair->pair_id, dma_chan->direction, true); if (dma_chan->direction == GDMA_CHANNEL_DIRECTION_RX) { task_id = GDMA_LL_RX_ETM_TASK_TABLE(group->group_id, pair->pair_id, config->task_type); } else { task_id = GDMA_LL_TX_ETM_TASK_TABLE(group->group_id, pair->pair_id, config->task_type); } ESP_GOTO_ON_FALSE(task_id != 0, ESP_ERR_NOT_SUPPORTED, err, TAG, "not supported task type"); // set a flag, now the GDMA channel is start/stop by ETM subsystem dma_chan->flags.start_stop_by_etm = true; // fill the ETM task object task->chan = dma_chan; task->base.task_id = task_id; task->base.trig_periph = ETM_TRIG_PERIPH_GDMA; task->base.del = gdma_del_etm_task; *out_task = &(task->base); return ESP_OK; err: if (task) { gdma_del_etm_task(&task->base); } return ret; }