xushaoxiang
129 lines
3.0 KiB
C
129 lines
3.0 KiB
C
#ifndef _XC_DRV_I2S_H_
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#define _XC_DRV_I2S_H_
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#include "stdint.h"
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#define I2S_TX_MODE (1)
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#define I2S_RX_MODE (0)
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#define I2S_RECODER_BUFF_MAX (20)
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#define MIC_SAMPLING_MAX_LEN (512)
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#define I2S_RX_FIFO_LEN (8)
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#define I2S_TX_FIFO_LEN (8)
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#define AUDIO_DOUBLE_CHANNEL (2)
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#define I2S_TXFIFO_UNDERFLOW_EN (BIT(6))
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#define I2S_TXFIFO_OVERFLOW_EN (BIT(5))
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#define I2S_TXFIFO_DATA_READY_EN (BIT(4))
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#define I2S_RXFIFO_UNDERFLOW_EN (BIT(2))
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#define I2S_RXFIFO_OVERFLOW_EN (BIT(1))
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#define I2S_RXFIFO_DATA_READY_EN (BIT(0))
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#define I2S_TX_DMA_CHANNEL (DMA_CHANNEL0)
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#define I2S_RX_DMA_CHANNEL (DMA_CHANNEL1)
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typedef void (*i2s_finish_callback)(uint8_t);
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typedef enum
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{
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I2S_TX = 0,
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I2S_RX = 1,
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} I2s_Channel_e;
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typedef enum
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{
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STANDARD_I2S_MODE = 0,
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LEFT_JUSTIFY_MODE = 1,
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RIGHT_JUSTIFY_MODE = 2,
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} I2s_Interface_Mode_e;
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typedef enum
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{
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LRCK_LEFT_LOW = 0,
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LRCK_LEFT_HIGH = 1,
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} I2s_LrckPolarity_e;
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typedef enum
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{
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BCLK_RISING_EDGE = 0,
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BCLK_FALLING_EDGE = 1,
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} I2s_BclkPolarity_e;
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typedef enum
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{
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I2S_BCLK_GPIO30 = 30,
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I2S_LRCK_GPIO31 = 31,
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I2S_RXDAT_GPIO32 = 32,
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I2S_TXDAT_GPIO10 = 10,
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I2S_TXDAT_GPIO33 = 33,
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} I2s_GPIO_e;
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typedef enum
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{
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AUDIO_8BIT = 8,
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AUDIO_16BIT = 16,
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AUDIO_24BIT = 24,
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} Audio_BitDept_e;
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typedef enum
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{
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SAMPLING_RATE_8KHZ = 8000,
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SAMPLING_RATE_16KHZ = 16000,
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SAMPLING_RATE_44_1KHZ = 44100,
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SAMPLING_RATE_48KHZ = 48000,
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} I2s_SampleRate_e;
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typedef enum
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{
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SLOT_WIDTH_NA = 0,
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SLOT_WIDTH_8BIT,
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SLOT_WIDTH_12BIT,
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SLOT_WIDTH_16BIT,
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SLOT_WIDTH_20BIT,
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SLOT_WIDTH_24BIT,
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SLOT_WIDTH_28BIT,
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SLOT_WIDTH_32BIT,
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} Slot_Width_e;
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typedef enum
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{
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SLOT_RESOLUTION_NA = 0,
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SLOT_RESOLUTION_8BIT,
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SLOT_RESOLUTION_12BIT,
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SLOT_RESOLUTION_16BIT,
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SLOT_RESOLUTION_20BIT,
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SLOT_RESOLUTION_24BIT,
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SLOT_RESOLUTION_28BIT,
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SLOT_RESOLUTION_32BIT,
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} Slot_Resolution_e;
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typedef struct
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{
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i2s_finish_callback i2s_receive_finish_callback;
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i2s_finish_callback i2s_trans_finish_callback;
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} I2s_Finish_Callback_t;
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typedef struct
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{
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I2s_GPIO_e bclk_pin;
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I2s_GPIO_e lrck_pin;
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I2s_LrckPolarity_e lrckpolarity;
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I2s_BclkPolarity_e bclkpolarity;
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I2s_Interface_Mode_e interfacemode;
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Audio_BitDept_e audio_bit;
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I2s_SampleRate_e samplerate;
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Slot_Width_e slot_width;
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Slot_Resolution_e slot_resolution;
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#if (I2S_TX_MODE == 1)
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I2s_GPIO_e tx_pin;
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#endif
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#if (I2S_RX_MODE == 1)
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I2s_GPIO_e rx_pin;
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#endif
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#ifdef USE_DMA
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uint32_t transf_size;
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#if (I2S_TX_MODE == 1)
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uint32_t *voice_tx_buffer;
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#endif
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#if (I2S_RX_MODE == 1)
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uint32_t *voice_rx_buffer;
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#endif
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#endif
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} I2s_Cfg_t;
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void xc_i2s_init(I2s_Cfg_t *cfg);
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void xc_i2s_deinit(void);
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void xc_i2s_start(void *tx_cb, void *rx_cb);
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void xc_i2s_stop(void);
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#endif
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