#include <sdrv_i2s.h>

Data Fields
sdrv_i2s_params_t	params

bool	active

bool	clk_enable

bool	pack_mode

unsigned	threshold

uint8_t	queue_appl

uint8_t	queue_hw

sdrv_i2s_callback	callback

void *	context

sdrv_dma_t	dma_instance

sdrv_dma_channel_t	dma_channel

sdrv_i2s_dma_data_t	dma_data

Field Documentation

◆ active

bool active

clk status; true for enable ; false for disable

◆ callback

sdrv_i2s_callback callback

callback context

◆ clk_enable

bool clk_enable

data pack mode in fifo

◆ context

void* context

dma module instance handle

◆ dma_buf

sdrv_i2s_dma_buf_t dma_buf

◆ dma_channel

sdrv_dma_channel_t dma_channel

i2s dma fifo descriptions

◆ dma_data

sdrv_i2s_dma_data_t dma_data

dma buff descriptions

◆ dma_instance

sdrv_dma_t dma_instance

dma module channel handle

◆ pack_mode

bool pack_mode

i2s request dma transfer when fifo data is >= threshold for playback i2s request dma transfer when fifo data is <= threshold for capture

◆ params

sdrv_i2s_params_t params

< i2s config params ;such as fmt channels sample_width sample_rate stream status; true : running false:idle

◆ queue

sdrv_i2s_transfer_t queue[SDRV_I2S_XFER_NUM_BUFFERS]

◆ queue_appl

uint8_t queue_appl

app submit enqueue transfer index

◆ queue_hw

uint8_t queue_hw

hw dequeue transfer index app callback to notify user transfer status

◆ threshold

unsigned threshold

app transfer queue , the max size is SDRV_I2S_XFER_NUM_BUFFERS

The documentation for this struct was generated from the following file:

Z:/01-Code/06-SSDK-DEV-Firewall/ssdk/drivers/include/sdrv_i2s.h

Data Fields