/**
* @brief This function handles I2S interrupt request.
* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
* the configuration information for I2S module
* @retval None
*/
void HAL_I2S_IRQHandler(I2S_HandleTypeDef *hi2s)
{
uint32_t i2ssr = hi2s->Instance->SR;
/* I2S in mode Receiver ------------------------------------------------*/
if(((i2ssr & I2S_FLAG_OVR) != I2S_FLAG_OVR) &&
((i2ssr & I2S_FLAG_RXNE) == I2S_FLAG_RXNE) && (__HAL_I2S_GET_IT_SOURCE(hi2s, I2S_IT_RXNE) != RESET))
{
I2S_Receive_IT(hi2s);
return;
}
/* I2S in mode Tramitter -----------------------------------------------*/
if(((i2ssr & I2S_FLAG_TXE) == I2S_FLAG_TXE) && (__HAL_I2S_GET_IT_SOURCE(hi2s, I2S_IT_TXE) != RESET))
{
I2S_Transmit_IT(hi2s);
return;
}
/* I2S interrupt error -------------------------------------------------*/
if(__HAL_I2S_GET_IT_SOURCE(hi2s, I2S_IT_ERR) != RESET)
{
/* I2S Overrun error interrupt occured ---------------------------------*/
if((i2ssr & I2S_FLAG_OVR) == I2S_FLAG_OVR)
{
/* Disable RXNE and ERR interrupt */
__HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_RXNE | I2S_IT_ERR));
/* Set the error code and execute error callback*/
SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_OVR);
}
/* I2S Underrun error interrupt occured --------------------------------*/
if((i2ssr & I2S_FLAG_UDR) == I2S_FLAG_UDR)
{
/* Disable TXE and ERR interrupt */
__HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXE | I2S_IT_ERR));
/* Set the error code and execute error callback*/
SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_UDR);
}
/* I2S Frame format error interrupt occured --------------------------*/
if((i2ssr & I2S_FLAG_FRE) == I2S_FLAG_FRE)
{
/* Disable TXE and ERR interrupt */
__HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXE | I2S_IT_RXNE | I2S_IT_ERR));
/* Set the error code and execute error callback*/
SET_BIT(hi2s->ErrorCode, HAL_I2S_ERROR_FRE);
}
/* Set the I2S State ready */
hi2s->State = HAL_I2S_STATE_READY;
/* Call the Error Callback */
HAL_I2S_ErrorCallback(hi2s);
}
}
/**
* @brief This function handles I2S interrupt request.
* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
* the configuration information for I2S module
* @retval None
*/
__weak void HAL_I2S_IRQHandler(I2S_HandleTypeDef *hi2s)
{
uint32_t tmp1 = 0, tmp2 = 0;
if(hi2s->State == HAL_I2S_STATE_BUSY_RX)
{
tmp1 = __HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_RXNE);
tmp2 = __HAL_I2S_GET_IT_SOURCE(hi2s, I2S_IT_RXNE);
/* I2S in mode Receiver ------------------------------------------------*/
if((tmp1 != RESET) && (tmp2 != RESET))
{
I2S_Receive_IT(hi2s);
}
tmp1 = __HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_OVR);
tmp2 = __HAL_I2S_GET_IT_SOURCE(hi2s, I2S_IT_ERR);
/* I2S Overrun error interrupt occurred ---------------------------------*/
if((tmp1 != RESET) && (tmp2 != RESET))
{
__HAL_I2S_CLEAR_OVRFLAG(hi2s);
hi2s->ErrorCode |= HAL_I2S_ERROR_OVR;
}
}
if(hi2s->State == HAL_I2S_STATE_BUSY_TX)
{
tmp1 = __HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_TXE);
tmp2 = __HAL_I2S_GET_IT_SOURCE(hi2s, I2S_IT_TXE);
/* I2S in mode Transmitter -----------------------------------------------*/
if((tmp1 != RESET) && (tmp2 != RESET))
{
I2S_Transmit_IT(hi2s);
}
tmp1 = __HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_UDR);
tmp2 = __HAL_I2S_GET_IT_SOURCE(hi2s, I2S_IT_ERR);
/* I2S Underrun error interrupt occurred --------------------------------*/
if((tmp1 != RESET) && (tmp2 != RESET))
{
__HAL_I2S_CLEAR_UDRFLAG(hi2s);
hi2s->ErrorCode |= HAL_I2S_ERROR_UDR;
}
}
/* Call the Error call Back in case of Errors */
if(hi2s->ErrorCode != HAL_I2S_ERROR_NONE)
{
/* Set the I2S state ready to be able to start again the process */
hi2s->State= HAL_I2S_STATE_READY;
HAL_I2S_ErrorCallback(hi2s);
}
}