i2s_channel_obj_t::dma - syntax, references, description

References

Code

Location

Referrer

i2s_dma_t dma; /*!< i2s dma object */

i2s_private.h:157

esp_intr_enable(handle->dma.dma_chan);

i2s_common.c:131

i2s_tx_channel_start()

i2s_hal_tx_start_link(&(handle->controller->hal), (uint32_t) handle->dma.desc[0]);

i2s_common.c:134

i2s_tx_channel_start()

esp_intr_enable(handle->dma.dma_chan);

i2s_common.c:153

i2s_rx_channel_start()

i2s_hal_rx_start_link(&(handle->controller->hal), (uint32_t) handle->dma.desc[0]);

i2s_common.c:156

i2s_rx_channel_start()

esp_intr_disable(handle->dma.dma_chan);

i2s_common.c:174

i2s_tx_channel_stop()

esp_intr_disable(handle->dma.dma_chan);

i2s_common.c:189

i2s_rx_channel_stop()

new_chan->dma.rw_pos = 0;

i2s_common.c:345

i2s_register_channel()

new_chan->dma.curr_ptr = NULL;

i2s_common.c:346

i2s_register_channel()

new_chan->dma.curr_desc = NULL;

i2s_common.c:347

i2s_register_channel()

if (!handle->dma.desc) {

i2s_common.c:459

i2s_free_dma_desc()

for (int i = 0; i < handle->dma.desc_num; i++) {

i2s_common.c:462

i2s_free_dma_desc()

if (handle->dma.bufs[i]) {

i2s_common.c:463

i2s_free_dma_desc()

free(handle->dma.bufs[i]);

i2s_common.c:464

i2s_free_dma_desc()

handle->dma.bufs[i] = NULL;

i2s_common.c:465

i2s_free_dma_desc()

if (handle->dma.desc[i]) {

i2s_common.c:467

i2s_free_dma_desc()

free(handle->dma.desc[i]);

i2s_common.c:468

i2s_free_dma_desc()

handle->dma.desc[i] = NULL;

i2s_common.c:469

i2s_free_dma_desc()

if (handle->dma.bufs) {

i2s_common.c:472

i2s_free_dma_desc()

free(handle->dma.bufs);

i2s_common.c:473

i2s_free_dma_desc()

handle->dma.bufs = NULL;

i2s_common.c:474

i2s_free_dma_desc()

if (handle->dma.desc) {

i2s_common.c:476

i2s_free_dma_desc()

free(handle->dma.desc);

i2s_common.c:477

i2s_free_dma_desc()

handle->dma.desc = NULL;

i2s_common.c:478

i2s_free_dma_desc()

handle->dma.desc_num = num;

i2s_common.c:489

i2s_alloc_dma_desc()

handle->dma.buf_size = bufsize;

i2s_common.c:490

i2s_alloc_dma_desc()

handle->dma.desc = (lldesc_t **)heap_caps_calloc(num, sizeof(lldesc_t *), I2S_MEM_ALLOC_CAPS);

i2s_common.c:493

i2s_alloc_dma_desc()

ESP_GOTO_ON_FALSE(handle->dma.desc, ESP_ERR_NO_MEM, err, TAG, "create I2S DMA descriptor array failed");

i2s_common.c:494

i2s_alloc_dma_desc()

handle->dma.bufs = (uint8_t **)heap_caps_calloc(num, sizeof(uint8_t *), I2S_MEM_ALLOC_CAPS);

i2s_common.c:495

i2s_alloc_dma_desc()

handle->dma.desc[i] = (lldesc_t *) i2s_dma_calloc(handle, 1, sizeof(lldesc_t));

i2s_common.c:498

i2s_alloc_dma_desc()

ESP_GOTO_ON_FALSE(handle->dma.desc[i], ESP_ERR_NO_MEM, err, TAG, "allocate DMA description failed");

i2s_common.c:499

i2s_alloc_dma_desc()

handle->dma.desc[i]->owner = 1;

i2s_common.c:500

i2s_alloc_dma_desc()

handle->dma.desc[i]->eof = 1;

i2s_common.c:501

i2s_alloc_dma_desc()

handle->dma.desc[i]->sosf = 0;

i2s_common.c:502

i2s_alloc_dma_desc()

handle->dma.desc[i]->length = bufsize;

i2s_common.c:503

i2s_alloc_dma_desc()

handle->dma.desc[i]->size = bufsize;

i2s_common.c:504

i2s_alloc_dma_desc()

handle->dma.desc[i]->offset = 0;

i2s_common.c:505

i2s_alloc_dma_desc()

handle->dma.bufs[i] = (uint8_t *) i2s_dma_calloc(handle, 1, bufsize * sizeof(uint8_t));

i2s_common.c:506

i2s_alloc_dma_desc()

ESP_GOTO_ON_FALSE(handle->dma.bufs[i], ESP_ERR_NO_MEM, err, TAG, "allocate DMA buffer failed");

i2s_common.c:507

i2s_alloc_dma_desc()

handle->dma.desc[i]->buf = handle->dma.bufs[i];

i2s_common.c:511

i2s_alloc_dma_desc()

ESP_LOGV(TAG, "desc addr: %8p\tbuffer addr:%8p", handle->dma.desc[i], handle->dma.bufs[i]);

i2s_common.c:512

i2s_alloc_dma_desc()

STAILQ_NEXT(handle->dma.desc[i], qe) = (i < (num - 1)) ? (handle->dma.desc[i + 1]) : handle->dma.desc[0];

i2s_common.c:517

i2s_alloc_dma_desc()

evt.size = handle->dma.buf_size;

i2s_common.c:681

i2s_dma_rx_callback()

evt.size = handle->dma.buf_size;

i2s_common.c:722

i2s_dma_tx_callback()

if (handle->dma.auto_clear_before_cb) {

i2s_common.c:724

i2s_dma_tx_callback()

memset(curr_buf, 0, handle->dma.buf_size);

i2s_common.c:725

i2s_dma_tx_callback()

if (handle->dma.auto_clear_after_cb) {

i2s_common.c:738

i2s_dma_tx_callback()

memset(curr_buf, 0, handle->dma.buf_size);

i2s_common.c:739

i2s_dma_tx_callback()

i2s_dma_tx_callback, handle, &handle->dma.dma_chan);

i2s_common.c:817

i2s_init_dma_intr()

i2s_dma_rx_callback, handle, &handle->dma.dma_chan);

i2s_common.c:821

i2s_init_dma_intr()

i2s_obj->tx_chan->dma.auto_clear_after_cb = chan_cfg->auto_clear_after_cb;

i2s_common.c:979

i2s_new_channel()

i2s_obj->tx_chan->dma.auto_clear_before_cb = chan_cfg->auto_clear_before_cb;

i2s_common.c:980

i2s_new_channel()

i2s_obj->tx_chan->dma.desc_num = chan_cfg->dma_desc_num;

i2s_common.c:981

i2s_new_channel()

i2s_obj->tx_chan->dma.frame_num = chan_cfg->dma_frame_num;

i2s_common.c:982

i2s_new_channel()

i2s_obj->rx_chan->dma.desc_num = chan_cfg->dma_desc_num;

i2s_common.c:994

i2s_new_channel()

i2s_obj->rx_chan->dma.frame_num = chan_cfg->dma_frame_num;

i2s_common.c:995

i2s_new_channel()

if (handle->dma.desc) {

i2s_common.c:1070

i2s_del_channel()

if (handle->dma.dma_chan) {

i2s_common.c:1087

i2s_del_channel()

esp_intr_free(handle->dma.dma_chan);

i2s_common.c:1092

i2s_del_channel()

chan_info->total_dma_buf_size = handle->state >= I2S_CHAN_STATE_READY ? handle->dma.desc_num * handle->dma.buf_size : 0;

i2s_common.c:1143

i2s_channel_get_info()

handle->dma.curr_ptr = NULL;

i2s_common.c:1199

i2s_channel_disable()

handle->dma.curr_desc = NULL;

i2s_common.c:1200

i2s_channel_disable()

handle->dma.rw_pos = 0;

i2s_common.c:1201

i2s_channel_disable()

if (tx_handle->dma.curr_desc == NULL) {

i2s_common.c:1228

i2s_channel_preload_data()

tx_handle->dma.curr_desc = tx_handle->dma.desc[0];

i2s_common.c:1229

i2s_channel_preload_data()

tx_handle->dma.curr_ptr = (void *)tx_handle->dma.desc[0]->buf;

i2s_common.c:1230

i2s_channel_preload_data()

tx_handle->dma.rw_pos = 0;

i2s_common.c:1231

i2s_channel_preload_data()

size_t bytes_can_load = remain_bytes > (tx_handle->dma.buf_size - tx_handle->dma.rw_pos) ?

i2s_common.c:1236

i2s_channel_preload_data()

(tx_handle->dma.buf_size - tx_handle->dma.rw_pos) : remain_bytes;

i2s_common.c:1237

i2s_channel_preload_data()

memcpy((uint8_t *)(tx_handle->dma.curr_ptr + tx_handle->dma.rw_pos), data_ptr, bytes_can_load);

i2s_common.c:1243

i2s_channel_preload_data()

tx_handle->dma.rw_pos += bytes_can_load; // Move forward the dma buffer position

i2s_common.c:1250

i2s_channel_preload_data()

if (tx_handle->dma.rw_pos == tx_handle->dma.buf_size) {

i2s_common.c:1252

i2s_channel_preload_data()

if (STAILQ_NEXT((lldesc_t *)tx_handle->dma.curr_desc, qe) != tx_handle->dma.desc[0]) {

i2s_common.c:1256

i2s_channel_preload_data()

tx_handle->dma.curr_desc = STAILQ_NEXT((lldesc_t *)tx_handle->dma.curr_desc, qe);

i2s_common.c:1257

i2s_channel_preload_data()

tx_handle->dma.curr_ptr = (void *)(((lldesc_t *)tx_handle->dma.curr_desc)->buf);

i2s_common.c:1258

i2s_channel_preload_data()

tx_handle->dma.rw_pos = 0;

i2s_common.c:1259

i2s_channel_preload_data()

if (handle->dma.rw_pos == handle->dma.buf_size || handle->dma.curr_ptr == NULL) {

i2s_common.c:1289

i2s_channel_write()

if (xQueueReceive(handle->msg_queue, &(handle->dma.curr_ptr), pdMS_TO_TICKS(timeout_ms)) == pdFALSE) {

i2s_common.c:1290

i2s_channel_write()

handle->dma.rw_pos = 0;

i2s_common.c:1294

i2s_channel_write()

data_ptr = (char *)handle->dma.curr_ptr;

i2s_common.c:1296

i2s_channel_write()

data_ptr += handle->dma.rw_pos;

i2s_common.c:1297

i2s_channel_write()

bytes_can_write = handle->dma.buf_size - handle->dma.rw_pos;

i2s_common.c:1298

i2s_channel_write()

handle->dma.rw_pos += bytes_can_write;

i2s_common.c:1308

i2s_channel_write()

if (handle->dma.rw_pos == handle->dma.buf_size || handle->dma.curr_ptr == NULL) {

i2s_common.c:1334

i2s_channel_read()

if (xQueueReceive(handle->msg_queue, &(handle->dma.curr_ptr), pdMS_TO_TICKS(timeout_ms)) == pdFALSE) {

i2s_common.c:1335

i2s_channel_read()

handle->dma.rw_pos = 0;

i2s_common.c:1339

i2s_channel_read()

data_ptr = (uint8_t *)handle->dma.curr_ptr;

i2s_common.c:1341

i2s_channel_read()

data_ptr += handle->dma.rw_pos;

i2s_common.c:1342

i2s_channel_read()

bytes_can_read = handle->dma.buf_size - handle->dma.rw_pos;

i2s_common.c:1343

i2s_channel_read()

handle->dma.rw_pos += bytes_can_read;

i2s_common.c:1350

i2s_channel_read()

uint32_t buf_size = i2s_get_buf_size(handle, slot_cfg->data_bit_width, handle->dma.frame_num);

i2s_pdm.c:95

i2s_pdm_tx_set_slot()

if (handle->dma.buf_size != buf_size) {

i2s_pdm.c:97

i2s_pdm_tx_set_slot()

handle->dma.buf_size = buf_size;

i2s_pdm.c:98

i2s_pdm_tx_set_slot()

ESP_RETURN_ON_ERROR(i2s_alloc_dma_desc(handle, handle->dma.desc_num, buf_size),

i2s_pdm.c:100

i2s_pdm_tx_set_slot()

uint32_t buf_size = i2s_get_buf_size(handle, slot_cfg->data_bit_width, handle->dma.frame_num);

i2s_pdm.c:383

i2s_pdm_rx_set_slot()

if (handle->dma.buf_size != buf_size) {

i2s_pdm.c:385

i2s_pdm_rx_set_slot()

handle->dma.buf_size = buf_size;

i2s_pdm.c:386

i2s_pdm_rx_set_slot()

ESP_RETURN_ON_ERROR(i2s_alloc_dma_desc(handle, handle->dma.desc_num, buf_size),

i2s_pdm.c:388

i2s_pdm_rx_set_slot()

return (size_t) & (((i2s_chan_handle_t)0)->dma.bufs);

i2s_platform.c:122

i2s_platform_get_dma_buffer_offset()

uint32_t buf_size = i2s_get_buf_size(handle, slot_cfg->data_bit_width, handle->dma.frame_num);

i2s_std.c:106

i2s_std_set_slot()

if (handle->dma.buf_size != buf_size) {

i2s_std.c:108

i2s_std_set_slot()

handle->dma.buf_size = buf_size;

i2s_std.c:109

i2s_std_set_slot()

ESP_RETURN_ON_ERROR(i2s_alloc_dma_desc(handle, handle->dma.desc_num, buf_size),

i2s_std.c:111

i2s_std_set_slot()

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i2s_channel_obj_t::dma is read by 21 functions:

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i2s_channel_obj_t::dma field

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