mbed official
mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
Diff: targets/TARGET_STM/TARGET_STM32L0/device/stm32l0xx_hal_spi.c
- Revision:
- 153:fa9ff456f731
- Parent:
- 151:5eaa88a5bcc7
- Child:
- 186:707f6e361f3e
--- a/targets/TARGET_STM/TARGET_STM32L0/device/stm32l0xx_hal_spi.c Thu Dec 15 11:48:27 2016 +0000
+++ b/targets/TARGET_STM/TARGET_STM32L0/device/stm32l0xx_hal_spi.c Tue Dec 20 17:27:56 2016 +0000
@@ -165,16 +165,31 @@
* @{
*/
#define SPI_TIMEOUT_VALUE 10U
+#define SPI_DEFAULT_TIMEOUT 100U
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
-static void SPI_TxCloseIRQHandler(SPI_HandleTypeDef *hspi);
-static void SPI_TxISR(SPI_HandleTypeDef *hspi);
-static void SPI_RxCloseIRQHandler(SPI_HandleTypeDef *hspi);
-static void SPI_2LinesRxISR(SPI_HandleTypeDef *hspi);
-static void SPI_RxISR(SPI_HandleTypeDef *hspi);
+static HAL_StatusTypeDef SPI_WaitFlagStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Flag, uint32_t State, uint32_t Timeout, uint32_t Tickstart);
+static void SPI_TxISR_8BIT(struct __SPI_HandleTypeDef *hspi);
+static void SPI_TxISR_16BIT(struct __SPI_HandleTypeDef *hspi);
+static void SPI_RxISR_8BIT(struct __SPI_HandleTypeDef *hspi);
+static void SPI_RxISR_16BIT(struct __SPI_HandleTypeDef *hspi);
+static void SPI_2linesRxISR_8BIT(struct __SPI_HandleTypeDef *hspi);
+static void SPI_2linesTxISR_8BIT(struct __SPI_HandleTypeDef *hspi);
+static void SPI_2linesTxISR_16BIT(struct __SPI_HandleTypeDef *hspi);
+static void SPI_2linesRxISR_16BIT(struct __SPI_HandleTypeDef *hspi);
+#if (USE_SPI_CRC != 0U)
+static void SPI_RxISR_8BITCRC(struct __SPI_HandleTypeDef *hspi);
+static void SPI_RxISR_16BITCRC(struct __SPI_HandleTypeDef *hspi);
+static void SPI_2linesRxISR_8BITCRC(struct __SPI_HandleTypeDef *hspi);
+static void SPI_2linesRxISR_16BITCRC(struct __SPI_HandleTypeDef *hspi);
+#endif /* USE_SPI_CRC */
+static void SPI_CloseRxTx_ISR(SPI_HandleTypeDef *hspi);
+static void SPI_CloseRx_ISR(SPI_HandleTypeDef *hspi);
+static void SPI_CloseTx_ISR(SPI_HandleTypeDef *hspi);
+static HAL_StatusTypeDef SPI_CheckFlag_BSY(SPI_HandleTypeDef *hspi, uint32_t Timeout, uint32_t Tickstart);
static void SPI_DMATransmitCplt(DMA_HandleTypeDef *hdma);
static void SPI_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
static void SPI_DMATransmitReceiveCplt(DMA_HandleTypeDef *hdma);
@@ -1009,7 +1024,16 @@
hspi->State = HAL_SPI_STATE_BUSY_TX;
hspi->ErrorCode = HAL_SPI_ERROR_NONE;
- hspi->TxISR = &SPI_TxISR;
+ /* Set the function for IT treatment */
+ if(hspi->Init.DataSize > SPI_DATASIZE_8BIT )
+ {
+ hspi->TxISR = SPI_TxISR_16BIT;
+ }
+ else
+ {
+ hspi->TxISR = SPI_TxISR_8BIT;
+ }
+
hspi->pTxBuffPtr = pData;
hspi->TxXferSize = Size;
hspi->TxXferCount = Size;
@@ -1083,7 +1107,15 @@
hspi->State = HAL_SPI_STATE_BUSY_RX;
hspi->ErrorCode = HAL_SPI_ERROR_NONE;
- hspi->RxISR = &SPI_RxISR;
+ /* Set the function for IT treatment */
+ if(hspi->Init.DataSize > SPI_DATASIZE_8BIT )
+ {
+ hspi->RxISR = SPI_RxISR_16BIT;
+ }
+ else
+ {
+ hspi->RxISR = SPI_RxISR_8BIT;
+ }
hspi->pRxBuffPtr = pData;
hspi->RxXferSize = Size;
hspi->RxXferCount = Size ;
@@ -1174,16 +1206,26 @@
/* Configure communication */
hspi->ErrorCode = HAL_SPI_ERROR_NONE;
- hspi->TxISR = &SPI_TxISR;
hspi->pTxBuffPtr = pTxData;
hspi->TxXferSize = Size;
hspi->TxXferCount = Size;
- hspi->RxISR = &SPI_2LinesRxISR;
hspi->pRxBuffPtr = pRxData;
hspi->RxXferSize = Size;
hspi->RxXferCount = Size;
+ /* Set the function for IT treatment */
+ if(hspi->Init.DataSize > SPI_DATASIZE_8BIT )
+ {
+ hspi->RxISR = SPI_2linesRxISR_16BIT;
+ hspi->TxISR = SPI_2linesTxISR_16BIT;
+ }
+ else
+ {
+ hspi->RxISR = SPI_2linesRxISR_8BIT;
+ hspi->TxISR = SPI_2linesTxISR_8BIT;
+ }
+
/* Reset CRC Calculation */
if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
{
@@ -1812,252 +1854,11 @@
/**
* @}
*/
-
-/**
- * @}
- */
-
-
/** @addtogroup SPI_Private
* @{
*/
-
- /**
- * @brief Interrupt Handler to close Tx transfer
- * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
- * the configuration information for SPI module.
- * @retval void
- */
-static void SPI_TxCloseIRQHandler(SPI_HandleTypeDef *hspi)
-{
- /* Wait until TXE flag is set to send data */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_TXE, RESET, SPI_TIMEOUT_VALUE) != HAL_OK)
- {
- SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
- }
-
- /* Disable TXE interrupt */
- __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE));
-
- /* Disable ERR interrupt if Receive process is finished */
- if(__HAL_SPI_GET_IT_SOURCE(hspi, SPI_IT_RXNE) == RESET)
- {
- __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_ERR));
-
- /* Wait until Busy flag is reset before disabling SPI */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_BSY, SET, SPI_TIMEOUT_VALUE) != HAL_OK)
- {
- SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
- }
-
- /* Clear OVERUN flag in 2 Lines communication mode because received is not read */
- if(hspi->Init.Direction == SPI_DIRECTION_2LINES)
- {
- __HAL_SPI_CLEAR_OVRFLAG(hspi);
- }
-
- /* Check if Errors has been detected during transfer */
- if(hspi->ErrorCode == HAL_SPI_ERROR_NONE)
- {
- /* Check if we are in Tx or in Rx/Tx Mode */
- if(hspi->State == HAL_SPI_STATE_BUSY_TX_RX)
- {
- /* Set state to READY before run the Callback Complete */
- hspi->State = HAL_SPI_STATE_READY;
- HAL_SPI_TxRxCpltCallback(hspi);
- }
- else
- {
- /* Set state to READY before run the Callback Complete */
- hspi->State = HAL_SPI_STATE_READY;
- HAL_SPI_TxCpltCallback(hspi);
- }
- }
- else
- {
- /* Set state to READY before run the Callback Complete */
- hspi->State = HAL_SPI_STATE_READY;
- /* Call Error call back in case of Error */
- HAL_SPI_ErrorCallback(hspi);
- }
- }
-}
-
-/**
- * @brief Interrupt Handler to transmit amount of data in no-blocking mode
- * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
- * the configuration information for SPI module.
- * @retval void
- */
-static void SPI_TxISR(SPI_HandleTypeDef *hspi)
-{
- /* Transmit data in 8 Bit mode */
- if(hspi->Init.DataSize == SPI_DATASIZE_8BIT)
- {
- hspi->Instance->DR = (*hspi->pTxBuffPtr++);
- }
- /* Transmit data in 16 Bit mode */
- else
- {
- hspi->Instance->DR = *((uint16_t*)hspi->pTxBuffPtr);
- hspi->pTxBuffPtr+=2U;
- }
- hspi->TxXferCount--;
-
- if(hspi->TxXferCount == 0U)
- {
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
- {
- /* calculate and transfer CRC on Tx line */
- SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
- }
- SPI_TxCloseIRQHandler(hspi);
- }
-}
-
-/**
- * @brief Interrupt Handler to close Rx transfer
- * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
- * the configuration information for SPI module.
- * @retval void
- */
-static void SPI_RxCloseIRQHandler(SPI_HandleTypeDef *hspi)
-{
- __IO uint16_t tmpreg = 0U;
-
- if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
- {
- /* Wait until RXNE flag is set to read CRC data */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, RESET, SPI_TIMEOUT_VALUE) != HAL_OK)
- {
- SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
- }
-
- /* Read CRC to reset RXNE flag */
- tmpreg = hspi->Instance->DR;
- UNUSED(tmpreg); /* avoid warning on tmpreg affectation with some compiler */
-
- /* Wait until RXNE flag is reset */
- if(SPI_WaitOnFlagUntilTimeout(hspi, SPI_FLAG_RXNE, SET, SPI_TIMEOUT_VALUE) != HAL_OK)
- {
- SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
- }
-
- /* Check if CRC error occurred */
- if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET)
- {
- SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC);
-
- /* Reset CRC Calculation */
- SPI_RESET_CRC(hspi);
- }
- }
-
- /* Disable RXNE interrupt */
- __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE));
-
- /* if Transmit process is finished */
- if(__HAL_SPI_GET_IT_SOURCE(hspi, SPI_IT_TXE) == RESET)
- {
- /* Disable ERR interrupt */
- __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_ERR));
-
- if((hspi->Init.Mode == SPI_MODE_MASTER)&&((hspi->Init.Direction == SPI_DIRECTION_1LINE)||(hspi->Init.Direction == SPI_DIRECTION_2LINES_RXONLY)))
- {
- /* Disable SPI peripheral */
- __HAL_SPI_DISABLE(hspi);
- }
-
- /* Check if Errors has been detected during transfer */
- if(hspi->ErrorCode == HAL_SPI_ERROR_NONE)
- {
- /* Check if we are in Rx or in Rx/Tx Mode */
- if(hspi->State == HAL_SPI_STATE_BUSY_TX_RX)
- {
- /* Set state to READY before run the Callback Complete */
- hspi->State = HAL_SPI_STATE_READY;
- HAL_SPI_TxRxCpltCallback(hspi);
- }
- else
- {
- /* Set state to READY before run the Callback Complete */
- hspi->State = HAL_SPI_STATE_READY;
- HAL_SPI_RxCpltCallback(hspi);
- }
- }
- else
- {
- /* Set state to READY before run the Callback Complete */
- hspi->State = HAL_SPI_STATE_READY;
- /* Call Error call back in case of Error */
- HAL_SPI_ErrorCallback(hspi);
- }
- }
-}
-
-/**
- * @brief Interrupt Handler to receive amount of data in 2Lines mode
- * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
- * the configuration information for SPI module.
- * @retval void
- */
-static void SPI_2LinesRxISR(SPI_HandleTypeDef *hspi)
-{
- /* Receive data in 8 Bit mode */
- if(hspi->Init.DataSize == SPI_DATASIZE_8BIT)
- {
- (*hspi->pRxBuffPtr++) = hspi->Instance->DR;
- }
- /* Receive data in 16 Bit mode */
- else
- {
- *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
- hspi->pRxBuffPtr+=2U;
- }
- hspi->RxXferCount--;
-
- if(hspi->RxXferCount==0U)
- {
- SPI_RxCloseIRQHandler(hspi);
- }
-}
-
-/**
- * @brief Interrupt Handler to receive amount of data in no-blocking mode
- * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
- * the configuration information for SPI module.
- * @retval void
- */
-static void SPI_RxISR(SPI_HandleTypeDef *hspi)
-{
- /* Receive data in 8 Bit mode */
- if(hspi->Init.DataSize == SPI_DATASIZE_8BIT)
- {
- (*hspi->pRxBuffPtr++) = hspi->Instance->DR;
- }
- /* Receive data in 16 Bit mode */
- else
- {
- *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
- hspi->pRxBuffPtr+=2U;
- }
- hspi->RxXferCount--;
-
- /* Enable CRC Transmission */
- if((hspi->RxXferCount == 1U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE))
- {
- /* Set CRC Next to calculate CRC on Rx side */
- SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
- }
-
- if(hspi->RxXferCount == 0U)
- {
- SPI_RxCloseIRQHandler(hspi);
- }
-}
-
/**
* @brief DMA SPI transmit process complete callback
* @param hdma: pointer to a DMA_HandleTypeDef structure that contains
@@ -2407,6 +2208,602 @@
* @}
*/
+/**
+ * @brief Rx 8-bit handler for Transmit and Receive in Interrupt mode.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval None
+ */
+static void SPI_2linesRxISR_8BIT(struct __SPI_HandleTypeDef *hspi)
+{
+ /* Receive data in 8bit mode */
+ *hspi->pRxBuffPtr++ = *((__IO uint8_t *)&hspi->Instance->DR);
+ hspi->RxXferCount--;
+
+ /* check end of the reception */
+ if(hspi->RxXferCount == 0U)
+ {
+#if (USE_SPI_CRC != 0U)
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ hspi->RxISR = SPI_2linesRxISR_8BITCRC;
+ return;
+ }
+#endif /* USE_SPI_CRC */
+
+ /* Disable RXNE interrupt */
+ __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR));
+
+ if(hspi->TxXferCount == 0U)
+ {
+ SPI_CloseRxTx_ISR(hspi);
+ }
+ }
+}
+
+#if (USE_SPI_CRC != 0U)
+/**
+ * @brief Rx 8-bit handler for Transmit and Receive in Interrupt mode.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval None
+ */
+static void SPI_2linesRxISR_8BITCRC(struct __SPI_HandleTypeDef *hspi)
+{
+ __IO uint8_t tmpreg = 0U;
+
+ /* Read data register to flush CRC */
+ tmpreg = *((__IO uint8_t *)&hspi->Instance->DR);
+
+ /* To avoid GCC warning */
+
+ UNUSED(tmpreg);
+
+ /* Disable RXNE interrupt */
+ __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR));
+
+ if(hspi->TxXferCount == 0U)
+ {
+ SPI_CloseRxTx_ISR(hspi);
+ }
+}
+#endif /* USE_SPI_CRC */
+
+/**
+ * @brief Tx 8-bit handler for Transmit and Receive in Interrupt mode.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval None
+ */
+static void SPI_2linesTxISR_8BIT(struct __SPI_HandleTypeDef *hspi)
+{
+ *(__IO uint8_t *)&hspi->Instance->DR = (*hspi->pTxBuffPtr++);
+ hspi->TxXferCount--;
+
+ /* check the end of the transmission */
+ if(hspi->TxXferCount == 0U)
+ {
+#if (USE_SPI_CRC != 0U)
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
+ __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE);
+ return;
+ }
+#endif /* USE_SPI_CRC */
+
+ /* Disable TXE interrupt */
+ __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE);
+
+ if(hspi->RxXferCount == 0U)
+ {
+ SPI_CloseRxTx_ISR(hspi);
+ }
+ }
+}
+
+/**
+ * @brief Rx 16-bit handler for Transmit and Receive in Interrupt mode.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval None
+ */
+static void SPI_2linesRxISR_16BIT(struct __SPI_HandleTypeDef *hspi)
+{
+ /* Receive data in 16 Bit mode */
+ *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR;
+ hspi->pRxBuffPtr += sizeof(uint16_t);
+ hspi->RxXferCount--;
+
+ if(hspi->RxXferCount == 0U)
+ {
+#if (USE_SPI_CRC != 0U)
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ hspi->RxISR = SPI_2linesRxISR_16BITCRC;
+ return;
+ }
+#endif /* USE_SPI_CRC */
+
+ /* Disable RXNE interrupt */
+ __HAL_SPI_DISABLE_IT(hspi, SPI_IT_RXNE);
+
+ if(hspi->TxXferCount == 0U)
+ {
+ SPI_CloseRxTx_ISR(hspi);
+ }
+ }
+}
+
+#if (USE_SPI_CRC != 0U)
+/**
+ * @brief Manage the CRC 16-bit receive for Transmit and Receive in Interrupt mode.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval None
+ */
+static void SPI_2linesRxISR_16BITCRC(struct __SPI_HandleTypeDef *hspi)
+{
+ /* Receive data in 16 Bit mode */
+ __IO uint16_t tmpreg = 0U;
+
+ /* Read data register to flush CRC */
+ tmpreg = hspi->Instance->DR;
+
+ /* To avoid GCC warning */
+ UNUSED(tmpreg);
+
+ /* Disable RXNE interrupt */
+ __HAL_SPI_DISABLE_IT(hspi, SPI_IT_RXNE);
+
+ SPI_CloseRxTx_ISR(hspi);
+}
+#endif /* USE_SPI_CRC */
+
+/**
+ * @brief Tx 16-bit handler for Transmit and Receive in Interrupt mode.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval None
+ */
+static void SPI_2linesTxISR_16BIT(struct __SPI_HandleTypeDef *hspi)
+{
+ /* Transmit data in 16 Bit mode */
+ hspi->Instance->DR = *((uint16_t *)hspi->pTxBuffPtr);
+ hspi->pTxBuffPtr += sizeof(uint16_t);
+ hspi->TxXferCount--;
+
+ /* Enable CRC Transmission */
+ if(hspi->TxXferCount == 0U)
+ {
+#if (USE_SPI_CRC != 0U)
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
+ __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE);
+ return;
+ }
+#endif /* USE_SPI_CRC */
+
+ /* Disable TXE interrupt */
+ __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE);
+
+ if(hspi->RxXferCount == 0U)
+ {
+ SPI_CloseRxTx_ISR(hspi);
+ }
+ }
+}
+
+#if (USE_SPI_CRC != 0U)
+/**
+ * @brief Manage the CRC 8-bit receive in Interrupt context.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval None
+ */
+static void SPI_RxISR_8BITCRC(struct __SPI_HandleTypeDef *hspi)
+{
+ __IO uint8_t tmpreg = 0U;
+
+ /* Read data register to flush CRC */
+ tmpreg = *((__IO uint8_t*)&hspi->Instance->DR);
+
+ /* To avoid GCC warning */
+ UNUSED(tmpreg);
+
+ SPI_CloseRx_ISR(hspi);
+}
+#endif /* USE_SPI_CRC */
+
+/**
+ * @brief Manage the receive 8-bit in Interrupt context.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval None
+ */
+static void SPI_RxISR_8BIT(struct __SPI_HandleTypeDef *hspi)
+{
+ *hspi->pRxBuffPtr++ = (*(__IO uint8_t *)&hspi->Instance->DR);
+ hspi->RxXferCount--;
+
+#if (USE_SPI_CRC != 0U)
+ /* Enable CRC Transmission */
+ if((hspi->RxXferCount == 1U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE))
+ {
+ SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
+ }
+#endif /* USE_SPI_CRC */
+
+ if(hspi->RxXferCount == 0U)
+ {
+#if (USE_SPI_CRC != 0U)
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ hspi->RxISR = SPI_RxISR_8BITCRC;
+ return;
+ }
+#endif /* USE_SPI_CRC */
+ SPI_CloseRx_ISR(hspi);
+ }
+}
+
+#if (USE_SPI_CRC != 0U)
+/**
+ * @brief Manage the CRC 16-bit receive in Interrupt context.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval None
+ */
+static void SPI_RxISR_16BITCRC(struct __SPI_HandleTypeDef *hspi)
+{
+ __IO uint16_t tmpreg = 0U;
+
+ /* Read data register to flush CRC */
+ tmpreg = hspi->Instance->DR;
+
+ /* To avoid GCC warning */
+ UNUSED(tmpreg);
+
+ /* Disable RXNE and ERR interrupt */
+ __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR));
+
+ SPI_CloseRx_ISR(hspi);
+}
+#endif /* USE_SPI_CRC */
+
+/**
+ * @brief Manage the 16-bit receive in Interrupt context.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval None
+ */
+static void SPI_RxISR_16BIT(struct __SPI_HandleTypeDef *hspi)
+{
+ *((uint16_t *)hspi->pRxBuffPtr) = hspi->Instance->DR;
+ hspi->pRxBuffPtr += sizeof(uint16_t);
+ hspi->RxXferCount--;
+
+#if (USE_SPI_CRC != 0U)
+ /* Enable CRC Transmission */
+ if((hspi->RxXferCount == 1U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE))
+ {
+ SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
+ }
+#endif /* USE_SPI_CRC */
+
+ if(hspi->RxXferCount == 0U)
+ {
+#if (USE_SPI_CRC != 0U)
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ hspi->RxISR = SPI_RxISR_16BITCRC;
+ return;
+ }
+#endif /* USE_SPI_CRC */
+ SPI_CloseRx_ISR(hspi);
+ }
+}
+
+/**
+ * @brief Handle the data 8-bit transmit in Interrupt mode.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval None
+ */
+static void SPI_TxISR_8BIT(struct __SPI_HandleTypeDef *hspi)
+{
+ *(__IO uint8_t *)&hspi->Instance->DR = (*hspi->pTxBuffPtr++);
+ hspi->TxXferCount--;
+
+ if(hspi->TxXferCount == 0U)
+ {
+#if (USE_SPI_CRC != 0U)
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ /* Enable CRC Transmission */
+ SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
+ }
+#endif /* USE_SPI_CRC */
+ __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE));
+ SPI_CloseTx_ISR(hspi);
+ }
+}
+
+/**
+ * @brief Handle the data 16-bit transmit in Interrupt mode.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval None
+ */
+static void SPI_TxISR_16BIT(struct __SPI_HandleTypeDef *hspi)
+{
+ /* Transmit data in 16 Bit mode */
+ hspi->Instance->DR = *((uint16_t *)hspi->pTxBuffPtr);
+ hspi->pTxBuffPtr += sizeof(uint16_t);
+ hspi->TxXferCount--;
+
+ if(hspi->TxXferCount == 0U)
+ {
+#if (USE_SPI_CRC != 0U)
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ /* Enable CRC Transmission */
+ SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT);
+ }
+#endif /* USE_SPI_CRC */
+ __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE));
+ SPI_CloseTx_ISR(hspi);
+ }
+}
+
+/**
+ * @brief Handle SPI Communication Timeout.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @param Flag: SPI flag to check
+ * @param State: flag state to check
+ * @param Timeout: Timeout duration
+ * @param Tickstart: tick start value
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef SPI_WaitFlagStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Flag, uint32_t State, uint32_t Timeout, uint32_t Tickstart)
+{
+ while((hspi->Instance->SR & Flag) != State)
+ {
+ if(Timeout != HAL_MAX_DELAY)
+ {
+ if((Timeout == 0U) || ((HAL_GetTick()-Tickstart) >= Timeout))
+ {
+ /* Disable the SPI and reset the CRC: the CRC value should be cleared
+ on both master and slave sides in order to resynchronize the master
+ and slave for their respective CRC calculation */
+
+ /* Disable TXE, RXNE and ERR interrupts for the interrupt process */
+ __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_RXNE | SPI_IT_ERR));
+
+ if((hspi->Init.Mode == SPI_MODE_MASTER)&&((hspi->Init.Direction == SPI_DIRECTION_1LINE)||(hspi->Init.Direction == SPI_DIRECTION_2LINES_RXONLY)))
+ {
+ /* Disable SPI peripheral */
+ __HAL_SPI_DISABLE(hspi);
+ }
+
+ /* Reset CRC Calculation */
+ if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)
+ {
+ SPI_RESET_CRC(hspi);
+ }
+
+ hspi->State= HAL_SPI_STATE_READY;
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hspi);
+
+ return HAL_TIMEOUT;
+ }
+ }
+ }
+
+ return HAL_OK;
+}
+
+/**
+ * @brief Handle to check BSY flag before start a new transaction.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @param Timeout: Timeout duration
+ * @param Tickstart: tick start value
+ * @retval HAL status
+ */
+static HAL_StatusTypeDef SPI_CheckFlag_BSY(SPI_HandleTypeDef *hspi, uint32_t Timeout, uint32_t Tickstart)
+{
+ /* Control the BSY flag */
+ if(SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_BSY, RESET, Timeout, Tickstart) != HAL_OK)
+ {
+ SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
+ return HAL_TIMEOUT;
+ }
+ return HAL_OK;
+}
+
+/**
+ * @brief Handle the end of the RXTX transaction.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval None
+ */
+static void SPI_CloseRxTx_ISR(SPI_HandleTypeDef *hspi)
+{
+ uint32_t tickstart = 0U;
+ __IO uint32_t count = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24 / 1000);
+ /* Init tickstart for timeout managment*/
+ tickstart = HAL_GetTick();
+
+ /* Disable ERR interrupt */
+ __HAL_SPI_DISABLE_IT(hspi, SPI_IT_ERR);
+
+ /* Wait until TXE flag is set */
+ do
+ {
+ if(count-- == 0)
+ {
+ SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
+ break;
+ }
+ }
+ while((hspi->Instance->SR & SPI_FLAG_TXE) == RESET);
+
+ /* Check the end of the transaction */
+ if(SPI_CheckFlag_BSY(hspi, SPI_DEFAULT_TIMEOUT, tickstart)!=HAL_OK)
+ {
+ SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
+ }
+
+ /* Clear overrun flag in 2 Lines communication mode because received is not read */
+ if(hspi->Init.Direction == SPI_DIRECTION_2LINES)
+ {
+ __HAL_SPI_CLEAR_OVRFLAG(hspi);
+ }
+
+#if (USE_SPI_CRC != 0U)
+ /* Check if CRC error occurred */
+ if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET)
+ {
+ hspi->State = HAL_SPI_STATE_READY;
+ SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC);
+ __HAL_SPI_CLEAR_CRCERRFLAG(hspi);
+ HAL_SPI_ErrorCallback(hspi);
+ }
+ else
+ {
+#endif /* USE_SPI_CRC */
+ if(hspi->ErrorCode == HAL_SPI_ERROR_NONE)
+ {
+ if(hspi->State == HAL_SPI_STATE_BUSY_RX)
+ {
+ hspi->State = HAL_SPI_STATE_READY;
+ HAL_SPI_RxCpltCallback(hspi);
+ }
+ else
+ {
+ hspi->State = HAL_SPI_STATE_READY;
+ HAL_SPI_TxRxCpltCallback(hspi);
+ }
+ }
+ else
+ {
+ hspi->State = HAL_SPI_STATE_READY;
+ HAL_SPI_ErrorCallback(hspi);
+ }
+#if (USE_SPI_CRC != 0U)
+ }
+#endif /* USE_SPI_CRC */
+}
+
+/**
+ * @brief Handle the end of the RX transaction.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval None
+ */
+static void SPI_CloseRx_ISR(SPI_HandleTypeDef *hspi)
+{
+ /* Disable RXNE and ERR interrupt */
+ __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR));
+
+ /* Check the end of the transaction */
+ if((hspi->Init.Mode == SPI_MODE_MASTER)&&((hspi->Init.Direction == SPI_DIRECTION_1LINE)||(hspi->Init.Direction == SPI_DIRECTION_2LINES_RXONLY)))
+ {
+ /* Disable SPI peripheral */
+ __HAL_SPI_DISABLE(hspi);
+ }
+
+ /* Clear overrun flag in 2 Lines communication mode because received is not read */
+ if(hspi->Init.Direction == SPI_DIRECTION_2LINES)
+ {
+ __HAL_SPI_CLEAR_OVRFLAG(hspi);
+ }
+ hspi->State = HAL_SPI_STATE_READY;
+
+#if (USE_SPI_CRC != 0U)
+ /* Check if CRC error occurred */
+ if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET)
+ {
+ SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC);
+ __HAL_SPI_CLEAR_CRCERRFLAG(hspi);
+ HAL_SPI_ErrorCallback(hspi);
+ }
+ else
+ {
+#endif /* USE_SPI_CRC */
+ if(hspi->ErrorCode == HAL_SPI_ERROR_NONE)
+ {
+ HAL_SPI_RxCpltCallback(hspi);
+ }
+ else
+ {
+ HAL_SPI_ErrorCallback(hspi);
+ }
+#if (USE_SPI_CRC != 0U)
+ }
+#endif /* USE_SPI_CRC */
+}
+
+/**
+ * @brief Handle the end of the TX transaction.
+ * @param hspi: pointer to a SPI_HandleTypeDef structure that contains
+ * the configuration information for SPI module.
+ * @retval None
+ */
+static void SPI_CloseTx_ISR(SPI_HandleTypeDef *hspi)
+{
+ uint32_t tickstart = 0U;
+ __IO uint32_t count = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24 / 1000);
+
+ /* Init tickstart for timeout management*/
+ tickstart = HAL_GetTick();
+
+ /* Wait until TXE flag is set */
+ do
+ {
+ if(count-- == 0)
+ {
+ SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
+ break;
+ }
+ }
+ while((hspi->Instance->SR & SPI_FLAG_TXE) == RESET);
+
+ /* Disable TXE and ERR interrupt */
+ __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_ERR));
+
+ /* Check Busy flag */
+ if(SPI_CheckFlag_BSY(hspi, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK)
+ {
+ SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG);
+ }
+
+ /* Clear overrun flag in 2 Lines communication mode because received is not read */
+ if(hspi->Init.Direction == SPI_DIRECTION_2LINES)
+ {
+ __HAL_SPI_CLEAR_OVRFLAG(hspi);
+ }
+
+ hspi->State = HAL_SPI_STATE_READY;
+ if(hspi->ErrorCode != HAL_SPI_ERROR_NONE)
+ {
+ HAL_SPI_ErrorCallback(hspi);
+ }
+ else
+ {
+ HAL_SPI_TxCpltCallback(hspi);
+ }
+}
+
+/**
+ * @}
+ */
+
#endif /* HAL_SPI_MODULE_ENABLED */
/**
