/**
* @brief Starts sending dummy data as audio stream: function used to
generate I2S master clock MCK for audio codec device.
* @param pBuffer: Pointer to the buffer
* @param Size: Number of audio data BYTES.
* @retval AUDIO_OK if correct communication, else wrong communication
*/
static uint8_t I2SOUT_SendDummyData_Start(uint16_t* pBuffer, uint32_t Size)
{
/* Update the Media layer and enable it for play */
HAL_I2S_Transmit_DMA(&hAudioOutI2s, pBuffer, DMA_MAX(Size));
return AUDIO_OK;
}
/**
* @brief Starts playing audio stream from a data buffer for a determined size.
* @param pBuffer: Pointer to the buffer
* @param Size: Number of audio data BYTES.
* @retval AUDIO_OK if correct communication, else wrong communication
*/
uint8_t BSP_AUDIO_OUT_Play(uint16_t* pBuffer, uint32_t Size)
{
/* Call the audio Codec Play function */
if (pAudioDrv->Play(AUDIO_I2C_ADDRESS, pBuffer, Size) != 0)
{
return AUDIO_ERROR;
}
else
{
/* Update the Media layer and enable it for play */
return (HAL_I2S_Transmit_DMA(&hAudioOutI2s, pBuffer, DMA_MAX(Size)));
}
}
/**
* @brief Starts playing audio stream from a data buffer for a determined size.
* @param pBuffer: Pointer to the buffer
* @param Size: Number of audio data BYTES.
* @retval AUDIO_OK if correct communication, else wrong communication
*/
uint8_t BSP_AUDIO_OUT_Play(uint16_t* pBuffer, uint32_t Size)
{
/* Call the audio Codec Play function */
if(audio_drv->Play(AUDIO_I2C_ADDRESS, pBuffer, Size) != 0)
{
return AUDIO_ERROR;
}
else
{
/* Update the Media layer and enable it for play */
HAL_I2S_Transmit_DMA(&haudio_i2s, pBuffer, DMA_MAX(Size/AUDIODATA_SIZE));
return AUDIO_OK;
}
}
/**
* @brief Starts playing audio stream from a data buffer for a determined size.
* @param pBuffer: Pointer to the buffer
* @param Size: Number of audio data BYTES.
* @retval AUDIO_OK if correct communication, else wrong communication
*/
uint8_t BSP_AUDIO_OUT_Play(uint16_t* pBuffer, uint32_t Size)
{
/* Call the audio Codec Play function */
if(pAudioDrv->Play(AUDIO_I2C_ADDRESS, pBuffer, Size) != 0)
{
return AUDIO_ERROR;
}
else
{
/* Update the Media layer and enable it for play */
HAL_I2S_Transmit_DMA(&hAudioOutI2s, pBuffer, DMA_MAX(Size/AUDIODATA_SIZE));
/* Return AUDIO_OK when all operations are correctly done */
return AUDIO_OK;
}
}
/**
* @brief Sends n-Bytes on the I2S interface.
* @param pData: pointer on data address
* @param Size: number of data to be written
* @retval None
*/
void BSP_AUDIO_OUT_ChangeBuffer(uint16_t *pData, uint16_t Size)
{
HAL_I2S_Transmit_DMA(&hAudioOutI2s, pData, Size);
}
/**
* @brief Sends n-Bytes on the I2S interface.
* @param pData: pointer on data address
* @param Size: number of data to be written
* @retval None
*/
uint8_t BSP_AUDIO_OUT_ChangeBuffer(uint16_t *pData, uint16_t Size)
{
return (HAL_I2S_Transmit_DMA(&hAudioOutI2s, pData, Size));
}
