/**
* @brief Enables or disables the SSPx/I2Sx DMA interface.
* @param SSPx: where x can be
* - SSP0, SSP1
* @param SSP_DMAReq: specifies the SSP DMA transfer request to be enabled or disabled.
* This parameter can be any combination of the following values:
* @arg SSP_DMAReq_Tx: Tx buffer DMA transfer request
* @arg SSP_DMAReq_Rx: Rx buffer DMA transfer request
* @param NewState: new state of the selected SSP DMA transfer request.
* This parameter can be: ENABLE or DISABLE.
* @retval None
*/
void SSP_DMACmd(SSP_TypeDef* SSPx, uint32_t SSP_DMAReq, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_SSP_ALL_PERIPH(SSPx));
assert_param(IS_FUNCTIONAL_STATE(NewState));
assert_param(IS_SSP_DMAREQ(SSP_DMAReq));
if (NewState != DISABLE)
{
/* Enable the selected SSP DMA requests */
SSPx->DMACR |= SSP_DMAReq;
}
else
{
/* Disable the selected SSP/I2S DMA requests */
SSPx->DMACR &= ~SSP_DMAReq;
}
}
/**
* @brief Enables or disables the SSP’s DMA interface.
* @param SSPx: Select the SSP peripheral.
* This parameter can be one of the following values:
* SSP1, SSP2.
* @param SSP_DMAReq: specifies the DMA request.
* This parameter can be any combination of the following values:
* @arg SSP_DMA_RXE: SSP DMA receive request
* @arg SSP_DMA_TXE: SSP DMA transmit request
* @param NewState: new state of the DMA Request sources.
* This parameter can be: ENABLE or DISABLE.
* @note The DMA mode is not available for SSP5.
* @retval None
*/
void SSP_DMACmd(MDR_SSP_TypeDef* SSPx, uint32_t SSP_DMAReq, FunctionalState NewState)
{
/* Check the parameters */
assert_param(IS_SSP_ALL_PERIPH(SSPx));
assert_param(IS_SSP_DMAREQ(SSP_DMAReq));
assert_param(IS_FUNCTIONAL_STATE(NewState));
if (NewState != DISABLE)
{
/* Enable the DMA transfer for selected requests in the SSP DMACR register */
SSPx->DMACR |= SSP_DMAReq;
}
else
{
/* Disable the DMA transfer for selected requests in the SSP DMACR register */
SSPx->DMACR &= (uint16_t)~SSP_DMAReq;
}
}