/**
* @brief Transmit an amount of data in non-blocking mode with Interrupt
* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
* the configuration information for I2S module
* @retval HAL status
*/
static HAL_StatusTypeDef I2S_Transmit_IT(I2S_HandleTypeDef *hi2s)
{
if(hi2s->State == HAL_I2S_STATE_BUSY_TX)
{
/* Transmit data */
hi2s->Instance->DR = (*hi2s->pTxBuffPtr++);
hi2s->TxXferCount--;
if(hi2s->TxXferCount == 0)
{
/* Disable TXE and ERR interrupt */
__HAL_I2S_DISABLE_IT(hi2s, (uint32_t)(I2S_IT_TXE | I2S_IT_ERR));
hi2s->State = HAL_I2S_STATE_READY;
HAL_I2S_TxCpltCallback(hi2s);
}
return HAL_OK;
}
else
{
return HAL_BUSY;
}
}
/**
* @brief DMA I2S transmit process complete callback
* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
* the configuration information for the specified DMA module.
* @retval None
*/
static void I2S_DMATxCplt(DMA_HandleTypeDef *hdma)
{
I2S_HandleTypeDef* hi2s = (I2S_HandleTypeDef*)((DMA_HandleTypeDef*)hdma)->Parent;
if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0)
{
/* Disable Tx DMA Request */
CLEAR_BIT(hi2s->Instance->CR2, SPI_CR2_TXDMAEN);
hi2s->TxXferCount = 0;
hi2s->State = HAL_I2S_STATE_READY;
}
HAL_I2S_TxCpltCallback(hi2s);
}
/**
* @brief Transmit an amount of data in non-blocking mode with Interrupt
* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
* the configuration information for I2S module
* @retval None
*/
static void I2S_Transmit_IT(I2S_HandleTypeDef *hi2s)
{
/* Transmit data */
hi2s->Instance->DR = (*hi2s->pTxBuffPtr++);
hi2s->TxXferCount--;
if(hi2s->TxXferCount == 0)
{
/* Disable TXE and ERR interrupt */
__HAL_I2S_DISABLE_IT(hi2s, (I2S_IT_TXE | I2S_IT_ERR));
hi2s->State = HAL_I2S_STATE_READY;
HAL_I2S_TxCpltCallback(hi2s);
}
}
/**
* @brief Full-Duplex Transmit/Receive data in non-blocking mode using Interrupt
* @param hi2s: pointer to a I2S_HandleTypeDef structure that contains
* the configuration information for I2S module
* @retval HAL status
*/
HAL_StatusTypeDef I2SEx_TransmitReceive_IT(I2S_HandleTypeDef *hi2s)
{
uint32_t tmp1 = 0, tmp2 = 0;
if(hi2s->State == HAL_I2S_STATE_BUSY_TX_RX)
{
/* Process Locked */
__HAL_LOCK(hi2s);
tmp1 = hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG;
tmp2 = hi2s->Instance->I2SCFGR & SPI_I2SCFGR_I2SCFG;
/* Check if the I2S_MODE_MASTER_TX or I2S_MODE_SLAVE_TX Mode is selected */
if((tmp1 == I2S_MODE_MASTER_TX) || (tmp2 == I2S_MODE_SLAVE_TX))
{
if(hi2s->TxXferCount != 0)
{
if(__HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_TXE) != RESET)
{
/* Transmit data */
hi2s->Instance->DR = (*hi2s->pTxBuffPtr++);
hi2s->TxXferCount--;
if(hi2s->TxXferCount == 0)
{
/* Disable TXE interrupt */
__HAL_I2S_DISABLE_IT(hi2s, I2S_IT_TXE);
}
}
}
if(hi2s->RxXferCount != 0)
{
if((I2SxEXT(hi2s->Instance)->SR & SPI_SR_RXNE) == SPI_SR_RXNE)
{
/* Receive data */
(*hi2s->pRxBuffPtr++) = I2SxEXT(hi2s->Instance)->DR;
hi2s->RxXferCount--;
if(hi2s->RxXferCount == 0)
{
/* Disable I2Sext RXNE interrupt */
I2SxEXT(hi2s->Instance)->CR2 &= ~I2S_IT_RXNE;
}
}
}
}
/* The I2S_MODE_MASTER_RX or I2S_MODE_SLAVE_RX Mode is selected */
else
{
if(hi2s->TxXferCount != 0)
{
if((I2SxEXT(hi2s->Instance)->SR & SPI_SR_TXE) == SPI_SR_TXE)
{
/* Transmit data */
I2SxEXT(hi2s->Instance)->DR = (*hi2s->pTxBuffPtr++);
hi2s->TxXferCount--;
if(hi2s->TxXferCount == 0)
{
/* Disable I2Sext TXE interrupt */
I2SxEXT(hi2s->Instance)->CR2 &= ~I2S_IT_TXE;
HAL_I2S_TxCpltCallback(hi2s);
}
}
}
if(hi2s->RxXferCount != 0)
{
if(__HAL_I2S_GET_FLAG(hi2s, I2S_FLAG_RXNE) != RESET)
{
/* Receive data */
(*hi2s->pRxBuffPtr++) = hi2s->Instance->DR;
hi2s->RxXferCount--;
if(hi2s->RxXferCount == 0)
{
/* Disable RXNE interrupt */
__HAL_I2S_DISABLE_IT(hi2s, I2S_IT_RXNE);
HAL_I2S_RxCpltCallback(hi2s);
}
}
}
}
tmp1 = hi2s->RxXferCount;
tmp2 = hi2s->TxXferCount;
if((tmp1 == 0) && (tmp2 == 0))
{
/* Disable I2Sx ERR interrupt */
__HAL_I2S_DISABLE_IT(hi2s, I2S_IT_ERR);
/* Disable I2Sext ERR interrupt */
I2SxEXT(hi2s->Instance)->CR2 &= ~I2S_IT_ERR;
hi2s->State = HAL_I2S_STATE_READY;
}
/* Process Unlocked */
__HAL_UNLOCK(hi2s);
return HAL_OK;
}
else
{
return HAL_BUSY;
}
}
/**
* @brief DMA I2S transmit process complete callback
* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
* the configuration information for the specified DMA module.
* @retval None
*/
static void I2S_DMATxCplt(DMA_HandleTypeDef *hdma)
{
I2S_HandleTypeDef* hi2s = ( I2S_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
/* Disable Tx DMA Request */
hi2s->Instance->CR2 &= (uint32_t)(~SPI_CR2_TXDMAEN);
hi2s->TxXferCount = 0;
hi2s->State = HAL_I2S_STATE_READY;
HAL_I2S_TxCpltCallback(hi2s);
}
