Symbols

loading (1/5)...

Files

loading (4/5)...

Summary Syntax References Data Use

SourceVuESP-IDF Framework and ExamplesESP-IDFi2s_dma_t::desc_num

i2s_dma_t::desc_num field

I2S DMA buffer number, it is also the number of DMA descriptor

Syntax

Show:

Summary

Declaration

from i2s_private.h:117

uint32_t desc_num;

References

Code

Location

Referrer

uint32_t desc_num; /*!< I2S DMA buffer number, it is also the number of DMA descriptor */

i2s_private.h:117

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

i2s_common.c:462

i2s_free_dma_desc()

handle->dma.desc_num = num;

i2s_common.c:489

i2s_alloc_dma_desc()

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

i2s_common.c:981

i2s_new_channel()

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

i2s_common.c:994

i2s_new_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()

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

i2s_pdm_tx_set_slot()

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

i2s_pdm_rx_set_slot()

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

i2s_std_set_slot()

Call Tree

All items filtered out

All items filtered out

Data Use

i2s_dma_t::desc_num is written by 2 functions and is read by 5 functions:

i2s_alloc_dma_desc()

i2s_new_channel()

i2s_dma_t::desc_num

i2s_free_dma_desc()

i2s_channel_get_info()

i2s_std_set_slot()

i2s_pdm_tx_set_slot()

i2s_pdm_rx_set_slot()

Class Tree

All items filtered out

All items filtered out

Override Tree

All items filtered out

All items filtered out

Implementations

All items filtered out

All items filtered out

Instances

Lifecycle

All items filtered out

All items filtered out