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SourceVuESP-IDF Framework and ExamplesESP-IDFi2s_dma_t::curr_desc

i2s_dma_t::curr_desc field

Pointer to current dma descriptor used for pre-load

Syntax

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Summary

Declaration

from i2s_private.h:124

void *curr_desc;

References

Code

Location

Referrer

void *curr_desc; /*!< Pointer to current dma descriptor used for pre-load */

i2s_private.h:124

new_chan->dma.curr_desc = NULL;

i2s_common.c:347

i2s_register_channel()

handle->dma.curr_desc = NULL;

i2s_common.c:1200

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()

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()

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Data Use

i2s_dma_t::curr_desc is written by 3 functions and is read by 1 function:

i2s_register_channel()

i2s_channel_disable()

i2s_channel_preload_data()

i2s_dma_t::curr_desc

i2s_channel_preload_data()

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