#include?“bsp_audio.h“
#include?“stm32f4xx_hal.h“
#include?“cs43l22.h“

#define?I2C_TIMEOUT??100
#define?AUDIO_I2C_ADDRESS?????????????????????0x94
#define?AUDIO_OK?????????0x00
#define?AUDIO_ERROR??????0x01
#define?AUDIO_TIMEOUT????0x02
#define?AUDIODATA_SIZE??????????????2
#define?DMA_MAX_SZE?????????????????????????0xFFFF
#define?DMA_MAX（x）???????????（（（x）?<=?DMA_MAX_SZE）??（x）:DMA_MAX_SZE）

AUDIO_DrvTypeDef???*audio_drv;
extern?I2C_HandleTypeDef?hi2c1;
extern?I2S_HandleTypeDef?hi2s3;

//---------------------for?c43l22?port--------------------------//
static?void?I2Cx_Error（uint8_t?Addr）
{
??/*?De-initialize?the?IOE?comunication?BUS?*/
??HAL_I2C_DeInit（&hi2c1）;

??/*?Re-Initiaize?the?IOE?comunication?BUS?*/
??//I2Cx_Init（）;
??//MX_I2C1_Init（）;
}
static?void?CODEC_Reset（void）
{
#if?1
	HAL_GPIO_WritePin（AUDIO_RESET_GPIO_Port?AUDIO_RESET_Pin?GPIO_PIN_RESET）;
	HAL_Delay（5）;
	HAL_GPIO_WritePin（AUDIO_RESET_GPIO_Port?AUDIO_RESET_Pin?GPIO_PIN_SET）;
	HAL_Delay（5）;
#endif
}
void?AUDIO_IO_Init（void）
{
??//I2Cx_Init（）;
}
void?AUDIO_IO_DeInit（void）
{

}
/**
??*?@brief??Writes?a?single?data.
??*?@param??Addr:?I2C?address
??*?@param??Reg:?Reg?address
??*?@param??Value:?Data?to?be?written
??*/
static?void?I2Cx_Write（uint8_t?Addr?uint8_t?Reg?uint8_t?Value）
{
??HAL_StatusTypeDef?status?=?HAL_OK;

??status?=?HAL_I2C_Mem_Write（&hi2c1?Addr?（uint16_t）Reg?I2C_MEMADD_SIZE_8BIT?&Value?1?I2C_TIMEOUT）;

??/*?Check?the?communication?status?*/
??if（status?!=?HAL_OK）
??{
????/*?I2C?error?occured?*/
????I2Cx_Error（Addr）;
??}
}
void?AUDIO_IO_Write（uint8_t?Addr?uint8_t?Reg?uint8_t?Value）
{
??I2Cx_Write（Addr?Reg?Value）;
}

/**
??*?@brief??Reads?a?single?data.
??*?@param??Addr:?I2C?address
??*?@param??Reg:?Reg?address
??*?@retval?Data?to?be?read
??*/
static?uint8_t?I2Cx_Read（uint8_t?Addr?uint8_t?Reg）
{
??HAL_StatusTypeDef?status?=?HAL_OK;
??uint8_t?Value?=?0;

??status?=?HAL_I2C_Mem_Read（&hi2c1?Addr?Reg?I2C_MEMADD_SIZE_8BIT?&Value?1?I2C_TIMEOUT）;

??/*?Check?the?communication?status?*/
??if（status?!=?HAL_OK）
??{
????/*?Execute?user?timeout?callback?*/
????I2Cx_Error（Addr）;
??}

??return?Value;
}
uint8_t?AUDIO_IO_Read（uint8_t?Addr?uint8_t?Reg）
{
??return?I2Cx_Read（Addr?Reg）;
}
//----------------for?usbd_audio_if?port--------------------//
static?void?I2Sx_Init（uint32_t?AudioFreq）
{
??/*?Initialize?the?haudio_i2s?Instance?parameter?*/
??hi2s3.Instance?=?SPI3;

?/*?Disable?I2S?block?*/
??__HAL_I2S_DISABLE（&hi2s3）;

??hi2s3.Init.Mode?=?I2S_MODE_MASTER_TX;
??hi2s3.Init.Standard?=?I2S_STANDARD;
??hi2s3.Init.DataFormat?=?I2S_DATAFORMAT_16B;
??hi2s3.Init.AudioFreq?=?AudioFreq;
??hi2s3.Init.CPOL?=?I2S_CPOL_LOW;
??hi2s3.Init.MCLKOutput?=?I2S_MCLKOUTPUT_ENABLE;

??if（HAL_I2S_GetState（&hi2s3）?==?HAL_I2S_STATE_RESET）
??{
????HAL_I2S_MspInit（&hi2s3）;
??}
??/*?Init?the?I2S?*/
??HAL_I2S_Init（&hi2s3）;
}
const?uint32_t?I2SFreq[8]?=?{8000?11025?16000?2205