i2s_dma_t::desc - syntax, references, description

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Code

Location

Referrer

lldesc_t **desc;

i2s_legacy.c:127

lldesc_t **desc; /*!< dma descriptor array */

i2s_private.h:125

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

i2s_common.c:134

i2s_tx_channel_start()

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

i2s_common.c:156

i2s_rx_channel_start()

if (!handle->dma.desc) {

i2s_common.c:459

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.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 = (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.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.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()

if (handle->dma.desc) {

i2s_common.c:1070

i2s_del_channel()

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()

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

i2s_common.c:1256

i2s_channel_preload_data()

i2s_hal_tx_start_link(&(p_i2s[i2s_num]->hal), (uint32_t) p_i2s[i2s_num]->tx->desc[0]);

i2s_legacy.c:434

i2s_tx_start()

i2s_hal_rx_start_link(&(p_i2s[i2s_num]->hal), (uint32_t) p_i2s[i2s_num]->rx->desc[0]);

i2s_legacy.c:446

i2s_rx_start()

if (dma_obj->desc && dma_obj->desc[cnt]) {

i2s_legacy.c:565

i2s_delete_dma_buffer()

free(dma_obj->desc[cnt]);

i2s_legacy.c:566

i2s_delete_dma_buffer()

dma_obj->desc[cnt] = NULL;

i2s_legacy.c:567

i2s_delete_dma_buffer()

dma_obj->desc[cnt] = heap_caps_aligned_calloc(4, 1, sizeof(lldesc_t), MALLOC_CAP_DMA | MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);

i2s_legacy.c:593

i2s_alloc_dma_buffer()

ESP_GOTO_ON_FALSE(dma_obj->desc[cnt], ESP_ERR_NO_MEM, err, TAG, "Error malloc dma description entry");

i2s_legacy.c:594

i2s_alloc_dma_buffer()

dma_obj->desc[cnt]->owner = 1;

i2s_legacy.c:599

i2s_alloc_dma_buffer()

dma_obj->desc[cnt]->eof = 1;

i2s_legacy.c:600

i2s_alloc_dma_buffer()

dma_obj->desc[cnt]->sosf = 0;

i2s_legacy.c:601

i2s_alloc_dma_buffer()

dma_obj->desc[cnt]->length = dma_obj->buf_size;

i2s_legacy.c:602

i2s_alloc_dma_buffer()

dma_obj->desc[cnt]->size = dma_obj->buf_size;

i2s_legacy.c:603

i2s_alloc_dma_buffer()

dma_obj->desc[cnt]->buf = (uint8_t *) dma_obj->buf[cnt];

i2s_legacy.c:604

i2s_alloc_dma_buffer()

dma_obj->desc[cnt]->offset = 0;

i2s_legacy.c:605

i2s_alloc_dma_buffer()

dma_obj->desc[cnt]->empty = (uint32_t)((cnt < (buf_cnt - 1)) ? (dma_obj->desc[cnt + 1]) : dma_obj->desc[0]);

i2s_legacy.c:607

i2s_alloc_dma_buffer()

if ((*dma)->desc) {

i2s_legacy.c:645

i2s_destroy_dma_object()

free((*dma)->desc);

i2s_legacy.c:646

i2s_destroy_dma_object()

(*dma)->desc = NULL;

i2s_legacy.c:647

i2s_destroy_dma_object()

(*dma)->desc = (lldesc_t **)heap_caps_calloc(buf_cnt, sizeof(lldesc_t *), MALLOC_CAP_DMA);

i2s_legacy.c:679

i2s_create_dma_object()

if (!(*dma)->desc) {

i2s_legacy.c:680

i2s_create_dma_object()

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Data Use

i2s_dma_t::desc is written by 4 functions and is read by 12 functions:

i2s_destroy_dma_object()

i2s_create_dma_object()

i2s_dma_t::desc

i2s_delete_dma_buffer()

i2s_alloc_dma_buffer()

i2s_destroy_dma_object()

i2s_create_dma_object()

i2s_tx_channel_start()

i2s_rx_channel_start()

i2s_free_dma_desc()

i2s_alloc_dma_desc()

i2s_del_channel()

i2s_channel_preload_data()

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i2s_dma_t::desc field

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