Intel® Quark™ Microcontroller Software Interface
1.4.0
Intel® Quark™ Microcontroller BSP
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I2S controller configuration. More...
#include <qm_i2s.h>
Data Fields | |
qm_dma_channel_id_t | dma_channel |
DMA controller Channel ID. | |
qm_i2s_audio_stream_t | audio_stream |
I2S audio stream identifier. | |
qm_i2s_audio_format_t | audio_format |
I2S audio format configuration. | |
qm_i2s_master_slave_t | master_slave |
I2S Master or Slave configuration. | |
qm_i2s_sample_resolution_t | sample_resolution |
Sampling resolution. | |
qm_i2s_audio_rate_t | audio_rate |
Audio rate. | |
qm_i2s_buffer_mode_t | audio_buff_cfg |
Terminated link list or ring buffer configuration. | |
uint32_t | block_size |
DMA block size configuration: The source and destination transfer width is 32-bits for I2S. More... | |
uint32_t | num_dma_links |
Total number of DMA links. More... | |
qm_dma_lli_item_t * | dma_link |
Pointer to the DMA link list. | |
uint32_t | num_buffer_links |
Number of buffer links in the ring buffer. More... | |
qm_i2s_buffer_link_t * | buffer_link |
Ring buffer head pointer. More... | |
uint32_t | num_dma_link_per_buffer |
Number of DMA links per audio buffer. More... | |
uint32_t | buffer_len |
Length of a buffer in the ring buffer. More... | |
uint32_t | afull_thresh |
TX/RX almost full threshold. More... | |
uint32_t | aempty_thresh |
TX/RX almost empty threshold. More... | |
void(* | callback )(void *data, qm_i2s_status_t i2s_status) |
Transfer callback. More... | |
void * | callback_data |
Callback user data. More... | |
I2S controller configuration.
Driver instantiates one of these with given parameters for each I2S channel configured using the "qm_i2s_set_channel_config" function.
uint32_t qm_i2s_channel_cfg_data_t::aempty_thresh |
uint32_t qm_i2s_channel_cfg_data_t::afull_thresh |
uint32_t qm_i2s_channel_cfg_data_t::block_size |
uint32_t qm_i2s_channel_cfg_data_t::buffer_len |
qm_i2s_buffer_link_t* qm_i2s_channel_cfg_data_t::buffer_link |
void(* qm_i2s_channel_cfg_data_t::callback)(void *data, qm_i2s_status_t i2s_status) |
void* qm_i2s_channel_cfg_data_t::callback_data |
uint32_t qm_i2s_channel_cfg_data_t::num_buffer_links |
uint32_t qm_i2s_channel_cfg_data_t::num_dma_link_per_buffer |