i2s.h

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#ifndef I2S_H
#define I2S_H
 
#include <stdint.h>
#include <stdbool.h>
#include "errcode.h"
#include "sio_porting.h"
 
#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */
 
typedef struct i2s_rx_data {
    uint32_t left_buff[CONFIG_DATA_LEN_MAX];    
    uint32_t right_buff[CONFIG_DATA_LEN_MAX];   
    uint32_t length;                            
} i2s_rx_data_t;
 
typedef struct i2s_tx_data {
    uint32_t *left_buff;                        
    uint32_t *right_buff;                       
    uint32_t length;                            
} i2s_tx_data_t;
 
typedef struct i2s_config {
    uint8_t drive_mode;                         
    uint8_t transfer_mode;                      
    uint8_t data_width;                         
    uint8_t channels_num;                       
    uint8_t timing;                             
    uint8_t clk_edge;                           
    uint8_t div_number;                         
    uint8_t number_of_channels;                 
} i2s_config_t;
 
typedef void (*i2s_callback_t)(uint32_t *left_buff, uint32_t *right_buff, uint32_t length);
 
errcode_t uapi_i2s_init(sio_bus_t bus, i2s_callback_t callback);
 
errcode_t uapi_i2s_deinit(sio_bus_t bus);
 
errcode_t uapi_i2s_set_config(sio_bus_t bus, const i2s_config_t *config);
 
errcode_t uapi_i2s_get_config(sio_bus_t bus, i2s_config_t *config);
 
errcode_t uapi_i2s_write_data(sio_bus_t bus, i2s_tx_data_t *data);
 
errcode_t uapi_i2s_read_start(sio_bus_t bus);
 
errcode_t uapi_i2s_loop_trans(sio_bus_t bus, i2s_tx_data_t *data);
 
errcode_t uapi_i2s_get_data(sio_bus_t bus, i2s_rx_data_t *data);
 
#if defined(CONFIG_I2S_SUPPORT_LOOPBACK) && (CONFIG_I2S_SUPPORT_LOOPBACK == 1)
errcode_t uapi_i2s_loopback(sio_bus_t bus, bool en);
#endif  /* CONFIG_I2S_SUPPORT_LOOPBACK */
 
#if defined(CONFIG_I2S_SUPPORT_DMA)
typedef struct i2s_dma_config {
    uint8_t src_width;          
    uint8_t dest_width;         
    uint8_t burst_length;       
    uint8_t priority;           
} i2s_dma_config_t;
 
typedef struct i2s_dma_attr {
    bool tx_dma_enable;                     
    uint8_t tx_int_threshold;               
    bool rx_dma_enable;                     
    uint8_t rx_int_threshold;               
} i2s_dma_attr_t;
 
int32_t uapi_i2s_dma_config(sio_bus_t bus, i2s_dma_attr_t *i2s_dma_cfg);
 
int32_t uapi_i2s_merge_write_by_dma(sio_bus_t bus, const void *buffer, uint32_t length,
    i2s_dma_config_t *dma_cfg, uintptr_t arg, bool block);
 
int32_t uapi_i2s_merge_read_by_dma(sio_bus_t bus, const void *buffer, uint32_t length,
    i2s_dma_config_t *dma_cfg, uintptr_t arg, bool block);
#endif
 
#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */
 
#endif