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Diffstat (limited to 'c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_spi.c')
| -rw-r--r-- | c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_spi.c | 2728 |
1 files changed, 0 insertions, 2728 deletions
diff --git a/c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_spi.c b/c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_spi.c deleted file mode 100644 index 3442ab7695..0000000000 --- a/c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_spi.c +++ /dev/null @@ -1,2728 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f7xx_hal_spi.c - * @author MCD Application Team - * @version V1.0.1 - * @date 25-June-2015 - * @brief SPI HAL module driver. - * This file provides firmware functions to manage the following - * functionalities of the Serial Peripheral Interface (SPI) peripheral: - * + Initialization and de-initialization functions - * + IO operation functions - * + Peripheral Control functions - * + Peripheral State functions - @verbatim - ============================================================================== - ##### How to use this driver ##### - ============================================================================== - [..] - The SPI HAL driver can be used as follows: - - (#) Declare a SPI_HandleTypeDef handle structure, for example: - SPI_HandleTypeDef hspi; - - (#)Initialize the SPI low level resources by implementing the HAL_SPI_MspInit ()API: - (##) Enable the SPIx interface clock - (##) SPI pins configuration - (+++) Enable the clock for the SPI GPIOs - (+++) Configure these SPI pins as alternate function push-pull - (##) NVIC configuration if you need to use interrupt process - (+++) Configure the SPIx interrupt priority - (+++) Enable the NVIC SPI IRQ handle - (##) DMA Configuration if you need to use DMA process - (+++) Declare a DMA_HandleTypeDef handle structure for the transmit or receive channel - (+++) Enable the DMAx clock - (+++) Configure the DMA handle parameters - (+++) Configure the DMA Tx or Rx channel - (+++) Associate the initialized hdma_tx handle to the hspi DMA Tx or Rx handle - (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the DMA Tx or Rx channel - - (#) Program the Mode, BidirectionalMode , Data size, Baudrate Prescaler, NSS - management, Clock polarity and phase, FirstBit and CRC configuration in the hspi Init structure. - - (#) Initialize the SPI registers by calling the HAL_SPI_Init() API: - (++) This API configures also the low level Hardware GPIO, CLOCK, CORTEX...etc) - by calling the customised HAL_SPI_MspInit() API. - [..] - Circular mode restriction: - (#) The DMA circular mode cannot be used when the SPI is configured in these modes: - (##) Master 2Lines RxOnly - (##) Master 1Line Rx - (#) The CRC feature is not managed when the DMA circular mode is enabled - (#) When the SPI DMA Pause/Stop features are used, we must use the following APIs - the HAL_SPI_DMAPause()/ HAL_SPI_DMAStop() only under the SPI callbacks - - @endverbatim - ****************************************************************************** - * @attention - * - * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. Neither the name of STMicroelectronics nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - ****************************************************************************** - */ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f7xx_hal.h" - -/** @addtogroup STM32F7xx_HAL_Driver - * @{ - */ - -/** @defgroup SPI SPI - * @brief SPI HAL module driver - * @{ - */ -#ifdef HAL_SPI_MODULE_ENABLED - -/* Private typedef -----------------------------------------------------------*/ -/* Private defines -----------------------------------------------------------*/ -/** @defgroup SPI_Private_Constants SPI Private Constants - * @{ - */ -#define SPI_DEFAULT_TIMEOUT 50 -/** - * @} - */ - -/* Private macro -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* Private function prototypes -----------------------------------------------*/ -/** @addtogroup SPI_Private_Functions - * @{ - */ -static void SPI_DMATransmitCplt(DMA_HandleTypeDef *hdma); -static void SPI_DMAReceiveCplt(DMA_HandleTypeDef *hdma); -static void SPI_DMATransmitReceiveCplt(DMA_HandleTypeDef *hdma); -static void SPI_DMAHalfTransmitCplt(DMA_HandleTypeDef *hdma); -static void SPI_DMAHalfReceiveCplt(DMA_HandleTypeDef *hdma); -static void SPI_DMAHalfTransmitReceiveCplt(DMA_HandleTypeDef *hdma); -static void SPI_DMAError(DMA_HandleTypeDef *hdma); -static HAL_StatusTypeDef SPI_WaitFlagStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Flag, uint32_t State, uint32_t Timeout); -static HAL_StatusTypeDef SPI_WaitFifoStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Fifo, uint32_t State, uint32_t Timeout); -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_8BITCRC(struct __SPI_HandleTypeDef *hspi); -static void SPI_RxISR_16BIT(struct __SPI_HandleTypeDef *hspi); -static void SPI_RxISR_16BITCRC(struct __SPI_HandleTypeDef *hspi); -static void SPI_2linesRxISR_8BIT(struct __SPI_HandleTypeDef *hspi); -static void SPI_2linesRxISR_8BITCRC(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); -static void SPI_2linesRxISR_16BITCRC(struct __SPI_HandleTypeDef *hspi); -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_EndRxTransaction(SPI_HandleTypeDef *hspi, uint32_t Timeout); -static HAL_StatusTypeDef SPI_EndRxTxTransaction(SPI_HandleTypeDef *hspi, uint32_t Timeout); -/** - * @} - */ - -/* Exported functions ---------------------------------------------------------*/ - -/** @defgroup SPI_Exported_Functions SPI Exported Functions - * @{ - */ - -/** @defgroup SPI_Exported_Functions_Group1 Initialization and de-initialization functions - * @brief Initialization and Configuration functions - * -@verbatim - =============================================================================== - ##### Initialization and de-initialization functions ##### - =============================================================================== - [..] This subsection provides a set of functions allowing to initialize and - de-initialize the SPIx peripheral: - - (+) User must implement HAL_SPI_MspInit() function in which he configures - all related peripherals resources (CLOCK, GPIO, DMA, IT and NVIC ). - - (+) Call the function HAL_SPI_Init() to configure the selected device with - the selected configuration: - (++) Mode - (++) Direction - (++) Data Size - (++) Clock Polarity and Phase - (++) NSS Management - (++) BaudRate Prescaler - (++) FirstBit - (++) TIMode - (++) CRC Calculation - (++) CRC Polynomial if CRC enabled - (++) CRC Length, used only with Data8 and Data16 - (++) FIFO reception threshold - - (+) Call the function HAL_SPI_DeInit() to restore the default configuration - of the selected SPIx peripheral. - -@endverbatim - * @{ - */ - -/** - * @brief Initializes the SPI according to the specified parameters - * in the SPI_InitTypeDef and create the associated handle. - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SPI_Init(SPI_HandleTypeDef *hspi) -{ - uint32_t frxth; - - /* Check the SPI handle allocation */ - if(hspi == NULL) - { - return HAL_ERROR; - } - - /* Check the parameters */ - assert_param(IS_SPI_ALL_INSTANCE(hspi->Instance)); - assert_param(IS_SPI_MODE(hspi->Init.Mode)); - assert_param(IS_SPI_DIRECTION(hspi->Init.Direction)); - assert_param(IS_SPI_DATASIZE(hspi->Init.DataSize)); - assert_param(IS_SPI_CPOL(hspi->Init.CLKPolarity)); - assert_param(IS_SPI_CPHA(hspi->Init.CLKPhase)); - assert_param(IS_SPI_NSS(hspi->Init.NSS)); - assert_param(IS_SPI_NSSP(hspi->Init.NSSPMode)); - assert_param(IS_SPI_BAUDRATE_PRESCALER(hspi->Init.BaudRatePrescaler)); - assert_param(IS_SPI_FIRST_BIT(hspi->Init.FirstBit)); - assert_param(IS_SPI_TIMODE(hspi->Init.TIMode)); - assert_param(IS_SPI_CRC_CALCULATION(hspi->Init.CRCCalculation)); - assert_param(IS_SPI_CRC_POLYNOMIAL(hspi->Init.CRCPolynomial)); - assert_param(IS_SPI_CRC_LENGTH(hspi->Init.CRCLength)); - - if(hspi->State == HAL_SPI_STATE_RESET) - { - /* Allocate lock resource and initialize it */ - hspi->Lock = HAL_UNLOCKED; - - /* Init the low level hardware : GPIO, CLOCK, NVIC... */ - HAL_SPI_MspInit(hspi); - } - - hspi->State = HAL_SPI_STATE_BUSY; - - /* Disable the selected SPI peripheral */ - __HAL_SPI_DISABLE(hspi); - - /* Align by default the rs fifo threshold on the data size */ - if(hspi->Init.DataSize > SPI_DATASIZE_8BIT) - { - frxth = SPI_RXFIFO_THRESHOLD_HF; - } - else - { - frxth = SPI_RXFIFO_THRESHOLD_QF; - } - - /* CRC calculation is valid only for 16Bit and 8 Bit */ - if(( hspi->Init.DataSize != SPI_DATASIZE_16BIT ) && ( hspi->Init.DataSize != SPI_DATASIZE_8BIT )) - { - /* CRC must be disabled */ - hspi->Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE; - } - - /* Align the CRC Length on the data size */ - if( hspi->Init.CRCLength == SPI_CRC_LENGTH_DATASIZE) - { - /* CRC Length aligned on the data size : value set by default */ - if(hspi->Init.DataSize > SPI_DATASIZE_8BIT) - { - hspi->Init.CRCLength = SPI_CRC_LENGTH_16BIT; - } - else - { - hspi->Init.CRCLength = SPI_CRC_LENGTH_8BIT; - } - } - - /*---------------------------- SPIx CR1 & CR2 Configuration ------------------------*/ - /* Configure : SPI Mode, Communication Mode, Clock polarity and phase, NSS management, - Communication speed, First bit, CRC calculation state, CRC Length */ - hspi->Instance->CR1 = (hspi->Init.Mode | hspi->Init.Direction | - hspi->Init.CLKPolarity | hspi->Init.CLKPhase | (hspi->Init.NSS & SPI_CR1_SSM) | - hspi->Init.BaudRatePrescaler | hspi->Init.FirstBit | hspi->Init.CRCCalculation); - - if( hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT) - { - hspi->Instance->CR1|= SPI_CR1_CRCL; - } - - /* Configure : NSS management */ - /* Configure : Rx Fifo Threshold */ - hspi->Instance->CR2 = (((hspi->Init.NSS >> 16) & SPI_CR2_SSOE) | hspi->Init.TIMode | hspi->Init.NSSPMode | - hspi->Init.DataSize ) | frxth; - - /*---------------------------- SPIx CRCPOLY Configuration --------------------*/ - /* Configure : CRC Polynomial */ - hspi->Instance->CRCPR = hspi->Init.CRCPolynomial; - - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->State= HAL_SPI_STATE_READY; - - return HAL_OK; -} - -/** - * @brief DeInitializes the SPI peripheral - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SPI_DeInit(SPI_HandleTypeDef *hspi) -{ - /* Check the SPI handle allocation */ - if(hspi == NULL) - { - return HAL_ERROR; - } - - /* Check the parameters */ - assert_param(IS_SPI_ALL_INSTANCE(hspi->Instance)); - - hspi->State = HAL_SPI_STATE_BUSY; - - /* check flag before the SPI disable */ - SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FTLVL, SPI_FTLVL_EMPTY, SPI_DEFAULT_TIMEOUT); - SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_BSY, RESET, SPI_DEFAULT_TIMEOUT); - SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, SPI_DEFAULT_TIMEOUT); - - /* Disable the SPI Peripheral Clock */ - __HAL_SPI_DISABLE(hspi); - - /* DeInit the low level hardware: GPIO, CLOCK, NVIC... */ - HAL_SPI_MspDeInit(hspi); - - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->State = HAL_SPI_STATE_RESET; - - __HAL_UNLOCK(hspi); - - return HAL_OK; -} - -/** - * @brief SPI MSP Init - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @retval None - */ - __weak void HAL_SPI_MspInit(SPI_HandleTypeDef *hspi) - { - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SPI_MspInit should be implemented in the user file - */ -} - -/** - * @brief SPI MSP DeInit - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @retval None - */ - __weak void HAL_SPI_MspDeInit(SPI_HandleTypeDef *hspi) -{ - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SPI_MspDeInit should be implemented in the user file - */ -} - -/** - * @} - */ - -/** @defgroup SPI_Exported_Functions_Group2 IO operation functions - * @brief Data transfers functions - * -@verbatim - ============================================================================== - ##### IO operation functions ##### - =============================================================================== - This subsection provides a set of functions allowing to manage the SPI - data transfers. - - [..] The SPI supports master and slave mode : - - (#) There are two modes of transfer: - (++) Blocking mode: The communication is performed in polling mode. - The HAL status of all data processing is returned by the same function - after finishing transfer. - (++) No-Blocking mode: The communication is performed using Interrupts - or DMA, These APIs return the HAL status. - The end of the data processing will be indicated through the - dedicated SPI IRQ when using Interrupt mode or the DMA IRQ when - using DMA mode. - The HAL_SPI_TxCpltCallback(), HAL_SPI_RxCpltCallback() and HAL_SPI_TxRxCpltCallback() user callbacks - will be executed respectively at the end of the transmit or Receive process - The HAL_SPI_ErrorCallback()user callback will be executed when a communication error is detected - - (#) APIs provided for these 2 transfer modes (Blocking mode or Non blocking mode using either Interrupt or DMA) - exist for 1Line (simplex) and 2Lines (full duplex) modes. - -@endverbatim - * @{ - */ - -/** - * @brief Transmit an amount of data in blocking mode - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @param pData: pointer to data buffer - * @param Size: amount of data to be sent - * @param Timeout: Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SPI_Transmit(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout) -{ - assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction)); - - /* Process Locked */ - __HAL_LOCK(hspi); - - if(hspi->State != HAL_SPI_STATE_READY) - { - hspi->State = HAL_SPI_STATE_READY; - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - return HAL_BUSY; - } - - if((pData == NULL ) || (Size == 0)) - { - hspi->State = HAL_SPI_STATE_READY; - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - return HAL_ERROR; - } - - /* Set the transaction information */ - hspi->State = HAL_SPI_STATE_BUSY_TX; - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->pTxBuffPtr = pData; - hspi->TxXferSize = Size; - hspi->TxXferCount = Size; - hspi->pRxBuffPtr = (uint8_t *)NULL; - hspi->RxXferSize = 0; - hspi->RxXferCount = 0; - - /* Configure communication direction : 1Line */ - if(hspi->Init.Direction == SPI_DIRECTION_1LINE) - { - SPI_1LINE_TX(hspi); - } - - /* Reset CRC Calculation */ - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SPI_RESET_CRC(hspi); - } - - /* Check if the SPI is already enabled */ - if((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) - { - /* Enable SPI peripheral */ - __HAL_SPI_ENABLE(hspi); - } - - /* Transmit data in 16 Bit mode */ - if(hspi->Init.DataSize > SPI_DATASIZE_8BIT) - { - /* Transmit data in 16 Bit mode */ - while (hspi->TxXferCount > 0) - { - /* Wait until TXE flag is set to send data */ - if(SPI_WaitFlagStateUntilTimeout(hspi,SPI_FLAG_TXE,SPI_FLAG_TXE,Timeout) != HAL_OK) - { - hspi->State = HAL_SPI_STATE_READY; - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - return HAL_TIMEOUT; - } - hspi->Instance->DR = *((uint16_t *)hspi->pTxBuffPtr); - hspi->pTxBuffPtr += sizeof(uint16_t); - hspi->TxXferCount--; - } - } - /* Transmit data in 8 Bit mode */ - else - { - while (hspi->TxXferCount > 0) - { - if(hspi->TxXferCount != 0x1) - { - /* Wait until TXE flag is set to send data */ - if(SPI_WaitFlagStateUntilTimeout(hspi,SPI_FLAG_TXE,SPI_FLAG_TXE,Timeout) != HAL_OK) - { - hspi->State = HAL_SPI_STATE_READY; - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - return HAL_TIMEOUT; - } - hspi->Instance->DR = *((uint16_t*)hspi->pTxBuffPtr); - hspi->pTxBuffPtr += sizeof(uint16_t); - hspi->TxXferCount -= 2; - } - else - { - /* Wait until TXE flag is set to send data */ - if(SPI_WaitFlagStateUntilTimeout(hspi,SPI_FLAG_TXE,SPI_FLAG_TXE,Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - *((__IO uint8_t*)&hspi->Instance->DR) = (*hspi->pTxBuffPtr++); - hspi->TxXferCount--; - } - } - } - - /* Enable CRC Transmission */ - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - hspi->Instance->CR1|= SPI_CR1_CRCNEXT; - } - - /* Check the end of the transaction */ - if(SPI_EndRxTxTransaction(hspi,Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - - /* 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); - } - - hspi->State = HAL_SPI_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - - if(hspi->ErrorCode != HAL_SPI_ERROR_NONE) - { - return HAL_ERROR; - } - else - { - return HAL_OK; - } -} - -/** - * @brief Receive an amount of data in blocking mode - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @param pData: pointer to data buffer - * @param Size: amount of data to be received - * @param Timeout: Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SPI_Receive(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout) -{ - __IO uint16_t tmpreg; - - if(hspi->State != HAL_SPI_STATE_READY) - { - return HAL_BUSY; - } - - if((pData == NULL ) || (Size == 0)) - { - return HAL_ERROR; - } - - if((hspi->Init.Mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES)) - { - /* the receive process is not supported in 2Lines direction master mode */ - /* in this case we call the transmitReceive process */ - return HAL_SPI_TransmitReceive(hspi,pData,pData,Size,Timeout); - } - - /* Process Locked */ - __HAL_LOCK(hspi); - - hspi->State = HAL_SPI_STATE_BUSY_RX; - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->pRxBuffPtr = pData; - hspi->RxXferSize = Size; - hspi->RxXferCount = Size; - hspi->pTxBuffPtr = (uint8_t *)NULL; - hspi->TxXferSize = 0; - hspi->TxXferCount = 0; - - /* Reset CRC Calculation */ - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SPI_RESET_CRC(hspi); - /* this is done to handle the CRCNEXT before the latest data */ - hspi->RxXferCount--; - } - - /* Set the Rx Fido threshold */ - if(hspi->Init.DataSize > SPI_DATASIZE_8BIT) - { - /* set fiforxthreshold according the reception data length: 16bit */ - CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - } - else - { - /* set fiforxthreshold according the reception data length: 8bit */ - SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - } - - /* Configure communication direction 1Line and enabled SPI if needed */ - if(hspi->Init.Direction == SPI_DIRECTION_1LINE) - { - SPI_1LINE_RX(hspi); - } - - /* Check if the SPI is already enabled */ - if((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) - { - /* Enable SPI peripheral */ - __HAL_SPI_ENABLE(hspi); - } - - /* Receive data in 8 Bit mode */ - if(hspi->Init.DataSize <= SPI_DATASIZE_8BIT) - { - while(hspi->RxXferCount > 1) - { - /* Wait until the RXNE flag */ - if(SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SPI_FLAG_RXNE, Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - (*hspi->pRxBuffPtr++)= *(__IO uint8_t *)&hspi->Instance->DR; - hspi->RxXferCount--; - } - } - else /* Receive data in 16 Bit mode */ - { - while(hspi->RxXferCount > 1 ) - { - /* Wait until RXNE flag is reset to read data */ - if(SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SPI_FLAG_RXNE, Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR; - hspi->pRxBuffPtr += sizeof(uint16_t); - hspi->RxXferCount--; - } - } - - /* Enable CRC Transmission */ - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - hspi->Instance->CR1 |= SPI_CR1_CRCNEXT; - } - - /* Wait until RXNE flag is set */ - if(SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SPI_FLAG_RXNE, Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - - /* Receive last data in 16 Bit mode */ - if(hspi->Init.DataSize > SPI_DATASIZE_8BIT) - { - *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR; - hspi->pRxBuffPtr += sizeof(uint16_t); - } - /* Receive last data in 8 Bit mode */ - else - { - (*hspi->pRxBuffPtr++) = *(__IO uint8_t *)&hspi->Instance->DR; - } - hspi->RxXferCount--; - - /* Read CRC from DR to close CRC calculation process */ - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - /* Wait until TXE flag */ - if(SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SPI_FLAG_RXNE, Timeout) != HAL_OK) - { - /* Error on the CRC reception */ - hspi->ErrorCode|= HAL_SPI_ERROR_CRC; - } - if(hspi->Init.DataSize > SPI_DATASIZE_8BIT) - { - tmpreg = hspi->Instance->DR; - UNUSED(tmpreg); /* To avoid GCC warning */ - } - else - { - tmpreg = *(__IO uint8_t *)&hspi->Instance->DR; - UNUSED(tmpreg); /* To avoid GCC warning */ - - if((hspi->Init.DataSize == SPI_DATASIZE_8BIT) && (hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT)) - { - if(SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SPI_FLAG_RXNE, Timeout) != HAL_OK) - { - /* Error on the CRC reception */ - hspi->ErrorCode|= HAL_SPI_ERROR_FLAG; - } - tmpreg = *(__IO uint8_t *)&hspi->Instance->DR; - UNUSED(tmpreg); /* To avoid GCC warning */ - } - } - } - - /* Check the end of the transaction */ - if(SPI_EndRxTransaction(hspi,Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - - hspi->State = HAL_SPI_STATE_READY; - - /* Check if CRC error occurred */ - if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET) - { - hspi->ErrorCode|= HAL_SPI_ERROR_CRC; - __HAL_SPI_CLEAR_CRCERRFLAG(hspi); - - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - return HAL_ERROR; - } - - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - - if(hspi->ErrorCode != HAL_SPI_ERROR_NONE) - { - return HAL_ERROR; - } - else - { - return HAL_OK; - } -} - -/** - * @brief Transmit and Receive an amount of data in blocking mode - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @param pTxData: pointer to transmission data buffer - * @param pRxData: pointer to reception data buffer - * @param Size: amount of data to be sent and received - * @param Timeout: Timeout duration - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SPI_TransmitReceive(SPI_HandleTypeDef *hspi, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size, uint32_t Timeout) -{ - __IO uint16_t tmpreg = 0; - uint32_t tickstart = HAL_GetTick(); - - assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction)); - - if(hspi->State != HAL_SPI_STATE_READY) - { - return HAL_BUSY; - } - - if((pTxData == NULL) || (pRxData == NULL) || (Size == 0)) - { - return HAL_ERROR; - } - - - /* Process Locked */ - __HAL_LOCK(hspi); - - hspi->State = HAL_SPI_STATE_BUSY_TX_RX; - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->pRxBuffPtr = pRxData; - hspi->RxXferCount = Size; - hspi->RxXferSize = Size; - hspi->pTxBuffPtr = pTxData; - hspi->TxXferCount = Size; - hspi->TxXferSize = Size; - - /* Reset CRC Calculation */ - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SPI_RESET_CRC(hspi); - } - - /* Set the Rx Fido threshold */ - if((hspi->Init.DataSize > SPI_DATASIZE_8BIT) || (hspi->RxXferCount > 1)) - { - /* set fiforxthreshold according the reception data length: 16bit */ - CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - } - else - { - /* set fiforxthreshold according the reception data length: 8bit */ - SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - } - - /* Check if the SPI is already enabled */ - if((hspi->Instance->CR1 &SPI_CR1_SPE) != SPI_CR1_SPE) - { - /* Enable SPI peripheral */ - __HAL_SPI_ENABLE(hspi); - } - - /* Transmit and Receive data in 16 Bit mode */ - if(hspi->Init.DataSize > SPI_DATASIZE_8BIT) - { - while ((hspi->TxXferCount > 0 ) || (hspi->RxXferCount > 0)) - { - /* Check TXE flag */ - if((hspi->TxXferCount > 0) && ((hspi->Instance->SR & SPI_FLAG_TXE) == SPI_FLAG_TXE)) - { - hspi->Instance->DR = *((uint16_t *)hspi->pTxBuffPtr); - hspi->pTxBuffPtr += sizeof(uint16_t); - hspi->TxXferCount--; - - /* Enable CRC Transmission */ - if((hspi->TxXferCount == 0) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)) - { - SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); - } - } - - /* Check RXNE flag */ - if((hspi->RxXferCount > 0) && ((hspi->Instance->SR & SPI_FLAG_RXNE) == SPI_FLAG_RXNE)) - { - *((uint16_t *)hspi->pRxBuffPtr) = hspi->Instance->DR; - hspi->pRxBuffPtr += sizeof(uint16_t); - hspi->RxXferCount--; - } - if(Timeout != HAL_MAX_DELAY) - { - if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout)) - { - hspi->State = HAL_SPI_STATE_READY; - __HAL_UNLOCK(hspi); - return HAL_TIMEOUT; - } - } - } - } - /* Transmit and Receive data in 8 Bit mode */ - else - { - while((hspi->TxXferCount > 0) || (hspi->RxXferCount > 0)) - { - /* check TXE flag */ - if((hspi->TxXferCount > 0) && ((hspi->Instance->SR & SPI_FLAG_TXE) == SPI_FLAG_TXE)) - { - if(hspi->TxXferCount > 1) - { - hspi->Instance->DR = *((uint16_t*)hspi->pTxBuffPtr); - hspi->pTxBuffPtr += sizeof(uint16_t); - hspi->TxXferCount -= 2; - } - else - { - *(__IO uint8_t *)&hspi->Instance->DR = (*hspi->pTxBuffPtr++); - hspi->TxXferCount--; - } - - /* Enable CRC Transmission */ - if((hspi->TxXferCount == 0) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)) - { - SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); - } - } - - /* Wait until RXNE flag is reset */ - if((hspi->RxXferCount > 0) && ((hspi->Instance->SR & SPI_FLAG_RXNE) == SPI_FLAG_RXNE)) - { - if(hspi->RxXferCount > 1) - { - *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR; - hspi->pRxBuffPtr += sizeof(uint16_t); - hspi->RxXferCount -= 2; - if(hspi->RxXferCount <= 1) - { - /* set fiforxthreshold before to switch on 8 bit data size */ - SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - } - } - else - { - (*hspi->pRxBuffPtr++) = *(__IO uint8_t *)&hspi->Instance->DR; - hspi->RxXferCount--; - } - } - if(Timeout != HAL_MAX_DELAY) - { - if((Timeout == 0) || ((HAL_GetTick()-tickstart) > Timeout)) - { - hspi->State = HAL_SPI_STATE_READY; - __HAL_UNLOCK(hspi); - return HAL_TIMEOUT; - } - } - } - } - - /* Read CRC from DR to close CRC calculation process */ - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - /* Wait until TXE flag */ - if(SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SPI_FLAG_RXNE, Timeout) != HAL_OK) - { - /* Error on the CRC reception */ - hspi->ErrorCode|= HAL_SPI_ERROR_CRC; - } - - if(hspi->Init.DataSize == SPI_DATASIZE_16BIT) - { - tmpreg = hspi->Instance->DR; - UNUSED(tmpreg); /* To avoid GCC warning */ - } - else - { - tmpreg = *(__IO uint8_t *)&hspi->Instance->DR; - UNUSED(tmpreg); /* To avoid GCC warning */ - - if(hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT) - { - if(SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SPI_FLAG_RXNE, Timeout) != HAL_OK) - { - /* Error on the CRC reception */ - hspi->ErrorCode|= HAL_SPI_ERROR_CRC; - } - tmpreg = *(__IO uint8_t *)&hspi->Instance->DR; - UNUSED(tmpreg); /* To avoid GCC warning */ - } - } - } - - /* Check the end of the transaction */ - if(SPI_EndRxTxTransaction(hspi,Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - - hspi->State = HAL_SPI_STATE_READY; - - /* Check if CRC error occurred */ - if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET) - { - hspi->ErrorCode|= HAL_SPI_ERROR_CRC; - /* Clear CRC Flag */ - __HAL_SPI_CLEAR_CRCERRFLAG(hspi); - - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - - return HAL_ERROR; - } - - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - - if(hspi->ErrorCode != HAL_SPI_ERROR_NONE) - { - return HAL_ERROR; - } - else - { - return HAL_OK; - } -} - -/** - * @brief Transmit an amount of data in no-blocking mode with Interrupt - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @param pData: pointer to data buffer - * @param Size: amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SPI_Transmit_IT(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size) -{ - assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction)); - - if(hspi->State == HAL_SPI_STATE_READY) - { - if((pData == NULL) || (Size == 0)) - { - return HAL_ERROR; - } - - /* Process Locked */ - __HAL_LOCK(hspi); - - hspi->State = HAL_SPI_STATE_BUSY_TX; - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->pTxBuffPtr = pData; - hspi->TxXferSize = Size; - hspi->TxXferCount = Size; - hspi->pRxBuffPtr = NULL; - hspi->RxXferSize = 0; - hspi->RxXferCount = 0; - - /* Set the function for IT treatement */ - if(hspi->Init.DataSize > SPI_DATASIZE_8BIT ) - { - hspi->RxISR = NULL; - hspi->TxISR = SPI_TxISR_16BIT; - } - else - { - hspi->RxISR = NULL; - hspi->TxISR = SPI_TxISR_8BIT; - } - - /* Configure communication direction : 1Line */ - if(hspi->Init.Direction == SPI_DIRECTION_1LINE) - { - SPI_1LINE_TX(hspi); - } - - /* Reset CRC Calculation */ - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SPI_RESET_CRC(hspi); - } - - /* Enable TXE and ERR interrupt */ - __HAL_SPI_ENABLE_IT(hspi,(SPI_IT_TXE)); - - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - - /* Note : The SPI must be enabled after unlocking current process - to avoid the risk of SPI interrupt handle execution before current - process unlock */ - - /* Check if the SPI is already enabled */ - if((hspi->Instance->CR1 &SPI_CR1_SPE) != SPI_CR1_SPE) - { - /* Enable SPI peripheral */ - __HAL_SPI_ENABLE(hspi); - } - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Receive an amount of data in no-blocking mode with Interrupt - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @param pData: pointer to data buffer - * @param Size: amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SPI_Receive_IT(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size) -{ - if(hspi->State == HAL_SPI_STATE_READY) - { - if((pData == NULL) || (Size == 0)) - { - return HAL_ERROR; - } - - /* Process Locked */ - __HAL_LOCK(hspi); - - /* Configure communication */ - hspi->State = HAL_SPI_STATE_BUSY_RX; - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->pRxBuffPtr = pData; - hspi->RxXferSize = Size; - hspi->RxXferCount = Size; - hspi->pTxBuffPtr = NULL; - hspi->TxXferSize = 0; - hspi->TxXferCount = 0; - - if((hspi->Init.Mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES)) - { - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - /* the receive process is not supported in 2Lines direction master mode */ - /* in this we call the transmitReceive process */ - return HAL_SPI_TransmitReceive_IT(hspi,pData,pData,Size); - } - - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - hspi->CRCSize = 1; - if((hspi->Init.DataSize <= SPI_DATASIZE_8BIT) && (hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT)) - { - hspi->CRCSize = 2; - } - } - else - { - hspi->CRCSize = 0; - } - - /* check the data size to adapt Rx threshold and the set the function for IT treatment */ - if(hspi->Init.DataSize > SPI_DATASIZE_8BIT ) - { - /* set fiforxthreshold according the reception data length: 16 bit */ - CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - hspi->RxISR = SPI_RxISR_16BIT; - hspi->TxISR = NULL; - } - else - { - /* set fiforxthreshold according the reception data length: 8 bit */ - SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - hspi->RxISR = SPI_RxISR_8BIT; - hspi->TxISR = NULL; - } - - /* Configure communication direction : 1Line */ - if(hspi->Init.Direction == SPI_DIRECTION_1LINE) - { - SPI_1LINE_RX(hspi); - } - - /* Reset CRC Calculation */ - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SPI_RESET_CRC(hspi); - } - - /* Enable TXE and ERR interrupt */ - __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR)); - - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - - /* Note : The SPI must be enabled after unlocking current process - to avoid the risk of SPI interrupt handle execution before current - process unlock */ - - /* Check if the SPI is already enabled */ - if((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) - { - /* Enable SPI peripheral */ - __HAL_SPI_ENABLE(hspi); - } - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Transmit and Receive an amount of data in no-blocking mode with Interrupt - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @param pTxData: pointer to transmission data buffer - * @param pRxData: pointer to reception data buffer - * @param Size: amount of data to be sent and received - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SPI_TransmitReceive_IT(SPI_HandleTypeDef *hspi, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size) -{ - assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction)); - - if((hspi->State == HAL_SPI_STATE_READY) || \ - ((hspi->Init.Mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES) && (hspi->State == HAL_SPI_STATE_BUSY_RX))) - { - if((pTxData == NULL ) || (pRxData == NULL ) || (Size == 0)) - { - return HAL_ERROR; - } - - /* Process locked */ - __HAL_LOCK(hspi); - - hspi->CRCSize = 0; - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - hspi->CRCSize = 1; - if((hspi->Init.DataSize <= SPI_DATASIZE_8BIT) && (hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT)) - { - hspi->CRCSize = 2; - } - } - - if(hspi->State != HAL_SPI_STATE_BUSY_RX) - { - hspi->State = HAL_SPI_STATE_BUSY_TX_RX; - } - - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->pTxBuffPtr = pTxData; - hspi->TxXferSize = Size; - hspi->TxXferCount = Size; - hspi->pRxBuffPtr = pRxData; - hspi->RxXferSize = Size; - hspi->RxXferCount = Size; - - /* Set the function for IT treatement */ - 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) - { - SPI_RESET_CRC(hspi); - } - - /* check if packing mode is enabled and if there is more than 2 data to receive */ - if((hspi->Init.DataSize > SPI_DATASIZE_8BIT) || (hspi->RxXferCount >= 2)) - { - /* set fiforxthreshold according the reception data length: 16 bit */ - CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - } - else - { - /* set fiforxthreshold according the reception data length: 8 bit */ - SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - } - - /* Enable TXE, RXNE and ERR interrupt */ - __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_RXNE | SPI_IT_ERR)); - - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - - /* Check if the SPI is already enabled */ - if((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) - { - /* Enable SPI peripheral */ - __HAL_SPI_ENABLE(hspi); - } - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Transmit an amount of data in no-blocking mode with DMA - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @param pData: pointer to data buffer - * @param Size: amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SPI_Transmit_DMA(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size) -{ - assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction)); - - if(hspi->State != HAL_SPI_STATE_READY) - { - return HAL_BUSY; - } - - if((pData == NULL) || (Size == 0)) - { - return HAL_ERROR; - } - - /* Process Locked */ - __HAL_LOCK(hspi); - - hspi->State = HAL_SPI_STATE_BUSY_TX; - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->pTxBuffPtr = pData; - hspi->TxXferSize = Size; - hspi->TxXferCount = Size; - hspi->pRxBuffPtr = (uint8_t *)NULL; - hspi->RxXferSize = 0; - hspi->RxXferCount = 0; - - /* Configure communication direction : 1Line */ - if(hspi->Init.Direction == SPI_DIRECTION_1LINE) - { - SPI_1LINE_TX(hspi); - } - - /* Reset CRC Calculation */ - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SPI_RESET_CRC(hspi); - } - - /* Set the SPI TxDMA Half transfer complete callback */ - hspi->hdmatx->XferHalfCpltCallback = SPI_DMAHalfTransmitCplt; - - /* Set the SPI TxDMA transfer complete callback */ - hspi->hdmatx->XferCpltCallback = SPI_DMATransmitCplt; - - /* Set the DMA error callback */ - hspi->hdmatx->XferErrorCallback = SPI_DMAError; - - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX); - /* packing mode is enabled only if the DMA setting is HALWORD */ - if((hspi->Init.DataSize <= SPI_DATASIZE_8BIT) && (hspi->hdmatx->Init.MemDataAlignment == DMA_MDATAALIGN_HALFWORD)) - { - /* Check the even/odd of the data size + crc if enabled */ - if((hspi->TxXferCount & 0x1) == 0) - { - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX); - hspi->TxXferCount = (hspi->TxXferCount >> 1); - } - else - { - SET_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX); - hspi->TxXferCount = (hspi->TxXferCount >> 1) + 1; - } - } - - /* Enable the Tx DMA channel */ - HAL_DMA_Start_IT(hspi->hdmatx, (uint32_t)hspi->pTxBuffPtr, (uint32_t)&hspi->Instance->DR, hspi->TxXferCount); - - /* Check if the SPI is already enabled */ - if((hspi->Instance->CR1 &SPI_CR1_SPE) != SPI_CR1_SPE) - { - /* Enable SPI peripheral */ - __HAL_SPI_ENABLE(hspi); - } - - /* Enable Tx DMA Request */ - hspi->Instance->CR2 |= SPI_CR2_TXDMAEN; - - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - - return HAL_OK; -} - -/** -* @brief Receive an amount of data in no-blocking mode with DMA -* @param hspi: SPI handle -* @param pData: pointer to data buffer -* @param Size: amount of data to be sent -* @retval HAL status -*/ -HAL_StatusTypeDef HAL_SPI_Receive_DMA(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size) -{ - if(hspi->State != HAL_SPI_STATE_READY) - { - return HAL_BUSY; - } - - if((pData == NULL) || (Size == 0)) - { - return HAL_ERROR; - } - - /* Process Locked */ - __HAL_LOCK(hspi); - - hspi->State = HAL_SPI_STATE_BUSY_RX; - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->pRxBuffPtr = pData; - hspi->RxXferSize = Size; - hspi->RxXferCount = Size; - hspi->pTxBuffPtr = (uint8_t *)NULL; - hspi->TxXferSize = 0; - hspi->TxXferCount = 0; - - if((hspi->Init.Mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES)) - { - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - /* the receive process is not supported in 2Lines direction master mode */ - /* in this case we call the transmitReceive process */ - return HAL_SPI_TransmitReceive_DMA(hspi,pData,pData,Size); - } - - /* Configure communication direction : 1Line */ - if(hspi->Init.Direction == SPI_DIRECTION_1LINE) - { - SPI_1LINE_RX(hspi); - } - - /* Reset CRC Calculation */ - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SPI_RESET_CRC(hspi); - } - - /* packing mode management is enabled by the DMA settings */ - if((hspi->Init.DataSize <= SPI_DATASIZE_8BIT) && (hspi->hdmarx->Init.MemDataAlignment == DMA_MDATAALIGN_HALFWORD)) - { - /* Process Locked */ - __HAL_UNLOCK(hspi); - /* Restriction the DMA data received is not allowed in this mode */ - return HAL_ERROR; - } - - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMARX); - if( hspi->Init.DataSize > SPI_DATASIZE_8BIT) - { - /* set fiforxthreshold according the reception data length: 16bit */ - CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - } - else - { - /* set fiforxthreshold according the reception data length: 8bit */ - SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - } - - /* Set the SPI RxDMA Half transfer complete callback */ - hspi->hdmarx->XferHalfCpltCallback = SPI_DMAHalfReceiveCplt; - - /* Set the SPI Rx DMA transfer complete callback */ - hspi->hdmarx->XferCpltCallback = SPI_DMAReceiveCplt; - - /* Set the DMA error callback */ - hspi->hdmarx->XferErrorCallback = SPI_DMAError; - - /* Enable Rx DMA Request */ - hspi->Instance->CR2 |= SPI_CR2_RXDMAEN; - - /* Enable the Rx DMA channel */ - HAL_DMA_Start_IT(hspi->hdmarx, (uint32_t)&hspi->Instance->DR, (uint32_t)hspi->pRxBuffPtr, hspi->RxXferCount); - - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - - /* Check if the SPI is already enabled */ - if((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) - { - /* Enable SPI peripheral */ - __HAL_SPI_ENABLE(hspi); - } - - return HAL_OK; -} - -/** - * @brief Transmit and Receive an amount of data in no-blocking mode with DMA - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @param pTxData: pointer to transmission data buffer - * @param pRxData: pointer to reception data buffer - * @note When the CRC feature is enabled the pRxData Length must be Size + 1 - * @param Size: amount of data to be sent - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SPI_TransmitReceive_DMA(SPI_HandleTypeDef *hspi, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size) -{ - assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction)); - - if((hspi->State == HAL_SPI_STATE_READY) || - ((hspi->Init.Mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES) && (hspi->State == HAL_SPI_STATE_BUSY_RX))) - { - if((pTxData == NULL ) || (pRxData == NULL ) || (Size == 0)) - { - return HAL_ERROR; - } - - /* Process locked */ - __HAL_LOCK(hspi); - - /* check if the transmit Receive function is not called by a receive master */ - if(hspi->State != HAL_SPI_STATE_BUSY_RX) - { - hspi->State = HAL_SPI_STATE_BUSY_TX_RX; - } - - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->pTxBuffPtr = (uint8_t *)pTxData; - hspi->TxXferSize = Size; - hspi->TxXferCount = Size; - hspi->pRxBuffPtr = (uint8_t *)pRxData; - hspi->RxXferSize = Size; - hspi->RxXferCount = Size; - - /* Reset CRC Calculation + increase the rxsize */ - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SPI_RESET_CRC(hspi); - } - - /* Reset the threshold bit */ - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX); - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMARX); - - /* the packing mode management is enabled by the DMA settings according the spi data size */ - if(hspi->Init.DataSize > SPI_DATASIZE_8BIT) - { - /* set fiforxthreshold according the reception data length: 16bit */ - CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - } - else - { - /* set fiforxthreshold according the reception data length: 8bit */ - SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - - if(hspi->hdmatx->Init.MemDataAlignment == DMA_MDATAALIGN_HALFWORD) - { - if((hspi->TxXferSize & 0x1) == 0x0 ) - { - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX); - hspi->TxXferCount = hspi->TxXferCount >> 1; - } - else - { - SET_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX); - hspi->TxXferCount = (hspi->TxXferCount >> 1) + 1; - } - } - - if(hspi->hdmarx->Init.MemDataAlignment == DMA_MDATAALIGN_HALFWORD) - { - /* set fiforxthreshold according the reception data length: 16bit */ - CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - - /* Size must include the CRC length */ - if((hspi->RxXferCount & 0x1) == 0x0 ) - { - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMARX); - hspi->RxXferCount = hspi->RxXferCount >> 1; - } - else - { - SET_BIT(hspi->Instance->CR2, SPI_CR2_LDMARX); - hspi->RxXferCount = (hspi->RxXferCount >> 1) + 1; - } - } - } - - /* Set the SPI Rx DMA transfer complete callback because the last generated transfer request is - the reception request (RXNE) */ - if(hspi->State == HAL_SPI_STATE_BUSY_RX) - { - hspi->hdmarx->XferHalfCpltCallback = SPI_DMAHalfReceiveCplt; - hspi->hdmarx->XferCpltCallback = SPI_DMAReceiveCplt; - } - else - { - hspi->hdmarx->XferHalfCpltCallback = SPI_DMAHalfTransmitReceiveCplt; - hspi->hdmarx->XferCpltCallback = SPI_DMATransmitReceiveCplt; - } - /* Set the DMA error callback */ - hspi->hdmarx->XferErrorCallback = SPI_DMAError; - - /* Enable Rx DMA Request */ - hspi->Instance->CR2 |= SPI_CR2_RXDMAEN; - - /* Enable the Rx DMA channel */ - HAL_DMA_Start_IT(hspi->hdmarx, (uint32_t)&hspi->Instance->DR, (uint32_t) hspi->pRxBuffPtr, hspi->RxXferCount); - - /* Set the SPI Tx DMA transfer complete callback as NULL because the communication closing - is performed in DMA reception complete callback */ - hspi->hdmatx->XferHalfCpltCallback = NULL; - hspi->hdmatx->XferCpltCallback = NULL; - - if(hspi->State == HAL_SPI_STATE_BUSY_TX_RX) - { - /* Set the DMA error callback */ - hspi->hdmatx->XferErrorCallback = SPI_DMAError; - } - else - { - hspi->hdmatx->XferErrorCallback = NULL; - } - - /* Enable the Tx DMA channel */ - HAL_DMA_Start_IT(hspi->hdmatx, (uint32_t)hspi->pTxBuffPtr, (uint32_t)&hspi->Instance->DR, hspi->TxXferCount); - - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - - /* Check if the SPI is already enabled */ - if((hspi->Instance->CR1 &SPI_CR1_SPE) != SPI_CR1_SPE) - { - /* Enable SPI peripheral */ - __HAL_SPI_ENABLE(hspi); - } - - /* Enable Tx DMA Request */ - hspi->Instance->CR2 |= SPI_CR2_TXDMAEN; - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Pauses the DMA Transfer. - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for the specified SPI module. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SPI_DMAPause(SPI_HandleTypeDef *hspi) -{ - /* Process Locked */ - __HAL_LOCK(hspi); - - /* Disable the SPI DMA Tx & Rx requests */ - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN); - - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - - return HAL_OK; -} - -/** - * @brief Resumes the DMA Transfer. - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for the specified SPI module. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SPI_DMAResume(SPI_HandleTypeDef *hspi) -{ - /* Process Locked */ - __HAL_LOCK(hspi); - - /* Enable the SPI DMA Tx & Rx requests */ - SET_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN); - - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - - return HAL_OK; -} - -/** - * @brief Stops the DMA Transfer. - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for the specified SPI module. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_SPI_DMAStop(SPI_HandleTypeDef *hspi) -{ - /* The Lock is not implemented on this API to allow the user application - to call the HAL SPI API under callbacks HAL_SPI_TxCpltCallback() or HAL_SPI_RxCpltCallback() or HAL_SPI_TxRxCpltCallback(): - when calling HAL_DMA_Abort() API the DMA TX/RX Transfer complete interrupt is generated - and the correspond call back is executed HAL_SPI_TxCpltCallback() or HAL_SPI_RxCpltCallback() or HAL_SPI_TxRxCpltCallback() - */ - - /* Abort the SPI DMA tx Stream */ - if(hspi->hdmatx != NULL) - { - HAL_DMA_Abort(hspi->hdmatx); - } - /* Abort the SPI DMA rx Stream */ - if(hspi->hdmarx != NULL) - { - HAL_DMA_Abort(hspi->hdmarx); - } - - /* Disable the SPI DMA Tx & Rx requests */ - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN); - hspi->State = HAL_SPI_STATE_READY; - return HAL_OK; -} - -/** - * @brief This function handles SPI interrupt request. - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for the specified SPI module. - * @retval None - */ -void HAL_SPI_IRQHandler(SPI_HandleTypeDef *hspi) -{ - /* SPI in mode Receiver ----------------------------------------------------*/ - if((__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_OVR) == RESET) && - (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_RXNE) != RESET) && (__HAL_SPI_GET_IT_SOURCE(hspi, SPI_IT_RXNE) != RESET)) - { - hspi->RxISR(hspi); - return; - } - - /* SPI in mode Transmitter ---------------------------------------------------*/ - if((__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE) != RESET) && (__HAL_SPI_GET_IT_SOURCE(hspi, SPI_IT_TXE) != RESET)) - { - hspi->TxISR(hspi); - return; - } - - /* SPI in ERROR Treatment ---------------------------------------------------*/ - if((hspi->Instance->SR & (SPI_FLAG_MODF | SPI_FLAG_OVR | SPI_FLAG_FRE)) != RESET) - { - /* SPI Overrun error interrupt occurred -------------------------------------*/ - if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_OVR) != RESET) - { - if(hspi->State != HAL_SPI_STATE_BUSY_TX) - { - hspi->ErrorCode |= HAL_SPI_ERROR_OVR; - __HAL_SPI_CLEAR_OVRFLAG(hspi); - } - else - { - return; - } - } - - /* SPI Mode Fault error interrupt occurred -------------------------------------*/ - if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_MODF) != RESET) - { - hspi->ErrorCode |= HAL_SPI_ERROR_MODF; - __HAL_SPI_CLEAR_MODFFLAG(hspi); - } - - /* SPI Frame error interrupt occurred ----------------------------------------*/ - if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_FRE) != RESET) - { - hspi->ErrorCode |= HAL_SPI_ERROR_FRE; - __HAL_SPI_CLEAR_FREFLAG(hspi); - } - - __HAL_SPI_DISABLE_IT(hspi, SPI_IT_RXNE | SPI_IT_TXE | SPI_IT_ERR); - hspi->State = HAL_SPI_STATE_READY; - HAL_SPI_ErrorCallback(hspi); - - return; - } -} - -/** - * @brief Tx Transfer completed callback - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @retval None - */ -__weak void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi) -{ - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SPI_TxCpltCallback should be implemented in the user file - */ -} - -/** - * @brief Rx Transfer completed callbacks - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @retval None - */ -__weak void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi) -{ - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SPI_RxCpltCallback should be implemented in the user file - */ -} - -/** - * @brief Tx and Rx Transfer completed callback - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @retval None - */ -__weak void HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi) -{ - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SPI_TxRxCpltCallback should be implemented in the user file - */ -} - -/** - * @brief Tx Half Transfer completed callback - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @retval None - */ -__weak void HAL_SPI_TxHalfCpltCallback(SPI_HandleTypeDef *hspi) -{ - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SPI_TxHalfCpltCallback should be implemented in the user file - */ -} - -/** - * @brief Rx Half Transfer completed callback - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @retval None - */ -__weak void HAL_SPI_RxHalfCpltCallback(SPI_HandleTypeDef *hspi) -{ - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SPI_RxHalfCpltCallback() should be implemented in the user file - */ -} - -/** - * @brief Tx and Rx Half Transfer callback - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @retval None - */ -__weak void HAL_SPI_TxRxHalfCpltCallback(SPI_HandleTypeDef *hspi) -{ - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SPI_TxRxHalfCpltCallback() should be implemented in the user file - */ -} - -/** - * @brief SPI error callback - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @retval None - */ - __weak void HAL_SPI_ErrorCallback(SPI_HandleTypeDef *hspi) -{ - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SPI_ErrorCallback should be implemented in the user file - */ - /* NOTE : The ErrorCode parameter in the hspi handle is updated by the SPI processes - and user can use HAL_SPI_GetError() API to check the latest error occurred - */ -} - -/** - * @} - */ - -/** - * @} - */ - -/** @defgroup SPI_Exported_Functions_Group3 Peripheral State and Errors functions - * @brief SPI control functions - * -@verbatim - =============================================================================== - ##### Peripheral State and Errors functions ##### - =============================================================================== - [..] - This subsection provides a set of functions allowing to control the SPI. - (+) HAL_SPI_GetState() API can be helpful to check in run-time the state of the SPI peripheral - (+) HAL_SPI_GetError() check in run-time Errors occurring during communication -@endverbatim - * @{ - */ - -/** - * @brief Return the SPI state - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @retval SPI state - */ -HAL_SPI_StateTypeDef HAL_SPI_GetState(SPI_HandleTypeDef *hspi) -{ - return hspi->State; -} - -/** - * @brief Return the SPI error code - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @retval SPI error code in bitmap format - */ -uint32_t HAL_SPI_GetError(SPI_HandleTypeDef *hspi) -{ - return hspi->ErrorCode; -} - -/** - * @} - */ - -/** - * @} - */ - -/** @defgroup SPI_Private_Functions SPI Private Functions - * @{ - */ - -/** - * @brief DMA SPI 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 SPI_DMATransmitCplt(DMA_HandleTypeDef *hdma) -{ - SPI_HandleTypeDef* hspi = ( SPI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; - - /* DMA Normal Mode */ - if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0) - { - /* Disable Tx DMA Request */ - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN); - - /* Clear OVERUN flag in 2 Lines communication mode because received data is not read */ - if(hspi->Init.Direction == SPI_DIRECTION_2LINES) - { - __HAL_SPI_CLEAR_OVRFLAG(hspi); - } - - hspi->TxXferCount = 0; - hspi->State = HAL_SPI_STATE_READY; - - if(hspi->ErrorCode != HAL_SPI_ERROR_NONE) - { - HAL_SPI_ErrorCallback(hspi); - return; - } - } - HAL_SPI_TxCpltCallback(hspi); -} - -/** - * @brief DMA SPI receive 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 SPI_DMAReceiveCplt(DMA_HandleTypeDef *hdma) -{ - __IO uint16_t tmpreg; - SPI_HandleTypeDef* hspi = ( SPI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; - - /* DMA Normal mode */ - if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0) - { - /* CRC handling */ - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - /* Wait until TXE flag */ - if(SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SPI_FLAG_RXNE, SPI_DEFAULT_TIMEOUT) != HAL_OK) - { - /* Error on the CRC reception */ - hspi->ErrorCode|= HAL_SPI_ERROR_CRC; - } - if(hspi->Init.DataSize > SPI_DATASIZE_8BIT) - { - tmpreg = hspi->Instance->DR; - UNUSED(tmpreg); /* To avoid GCC warning */ - } - else - { - tmpreg = *(__IO uint8_t *)&hspi->Instance->DR; - UNUSED(tmpreg); /* To avoid GCC warning */ - - if(hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT) - { - if(SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SPI_FLAG_RXNE, SPI_DEFAULT_TIMEOUT) != HAL_OK) - { - /* Error on the CRC reception */ - hspi->ErrorCode|= HAL_SPI_ERROR_CRC; - } - tmpreg = *(__IO uint8_t *)&hspi->Instance->DR; - UNUSED(tmpreg); /* To avoid GCC warning */ - } - } - } - - /* Disable Rx DMA Request */ - hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_RXDMAEN); - /* Disable Tx DMA Request (done by default to handle the case master rx direction 2 lines) */ - hspi->Instance->CR2 &= (uint32_t)(~SPI_CR2_TXDMAEN); - - /* Check the end of the transaction */ - SPI_EndRxTransaction(hspi,SPI_DEFAULT_TIMEOUT); - - hspi->RxXferCount = 0; - hspi->State = HAL_SPI_STATE_READY; - - /* Check if CRC error occurred */ - if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET) - { - hspi->ErrorCode|= HAL_SPI_ERROR_CRC; - __HAL_SPI_CLEAR_CRCERRFLAG(hspi); - HAL_SPI_RxCpltCallback(hspi); - } - else - { - if(hspi->ErrorCode == HAL_SPI_ERROR_NONE) - { - HAL_SPI_RxCpltCallback(hspi); - } - else - { - HAL_SPI_ErrorCallback(hspi); - } - } - } - else - { - HAL_SPI_RxCpltCallback(hspi); - } -} - -/** - * @brief DMA SPI transmit receive 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 SPI_DMATransmitReceiveCplt(DMA_HandleTypeDef *hdma) -{ - __IO int16_t tmpreg; - SPI_HandleTypeDef* hspi = ( SPI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; - - /* CRC handling */ - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - if((hspi->Init.DataSize == SPI_DATASIZE_8BIT) && (hspi->Init.CRCLength == SPI_CRC_LENGTH_8BIT)) - { - if(SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_QUARTER_FULL, SPI_DEFAULT_TIMEOUT) != HAL_OK) - { - /* Error on the CRC reception */ - hspi->ErrorCode|= HAL_SPI_ERROR_CRC; - } - tmpreg = *(__IO uint8_t *)&hspi->Instance->DR; - UNUSED(tmpreg); /* To avoid GCC warning */ - } - else - { - if(SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_HALF_FULL, SPI_DEFAULT_TIMEOUT) != HAL_OK) - { - /* Error on the CRC reception */ - hspi->ErrorCode|= HAL_SPI_ERROR_CRC; - } - tmpreg = hspi->Instance->DR; - UNUSED(tmpreg); /* To avoid GCC warning */ - } - } - - /* Check the end of the transaction */ - SPI_EndRxTxTransaction(hspi,SPI_DEFAULT_TIMEOUT); - - /* Disable Tx DMA Request */ - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN); - - /* Disable Rx DMA Request */ - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_RXDMAEN); - - hspi->TxXferCount = 0; - hspi->RxXferCount = 0; - hspi->State = HAL_SPI_STATE_READY; - - /* Check if CRC error occurred */ - if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET) - { - hspi->ErrorCode = HAL_SPI_ERROR_CRC; - __HAL_SPI_CLEAR_CRCERRFLAG(hspi); - HAL_SPI_ErrorCallback(hspi); - } - else - { - if(hspi->ErrorCode == HAL_SPI_ERROR_NONE) - { - HAL_SPI_TxRxCpltCallback(hspi); - } - else - { - HAL_SPI_ErrorCallback(hspi); - } - } -} - -/** - * @brief DMA SPI half 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 SPI_DMAHalfTransmitCplt(DMA_HandleTypeDef *hdma) -{ - SPI_HandleTypeDef* hspi = ( SPI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; - - HAL_SPI_TxHalfCpltCallback(hspi); -} - -/** - * @brief DMA SPI half receive 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 SPI_DMAHalfReceiveCplt(DMA_HandleTypeDef *hdma) -{ - SPI_HandleTypeDef* hspi = ( SPI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; - - HAL_SPI_RxHalfCpltCallback(hspi); -} - -/** - * @brief DMA SPI Half transmit receive 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 SPI_DMAHalfTransmitReceiveCplt(DMA_HandleTypeDef *hdma) -{ - SPI_HandleTypeDef* hspi = ( SPI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; - - HAL_SPI_TxRxHalfCpltCallback(hspi); -} - -/** - * @brief DMA SPI communication error callback - * @param hdma : pointer to a DMA_HandleTypeDef structure that contains - * the configuration information for the specified DMA module. - * @retval None - */ -static void SPI_DMAError(DMA_HandleTypeDef *hdma) -{ - SPI_HandleTypeDef* hspi = ( SPI_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; - - /* Stop the disable DMA transfer on SPI side */ - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN); - - hspi->ErrorCode|= HAL_SPI_ERROR_DMA; - hspi->State = HAL_SPI_STATE_READY; - HAL_SPI_ErrorCallback(hspi); -} - -/** - * @brief Rx 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 packing mode */ - if(hspi->RxXferCount > 1) - { - *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR; - hspi->pRxBuffPtr += sizeof(uint16_t); - hspi->RxXferCount -= 2; - if(hspi->RxXferCount == 1) - { - /* set fiforxthreshold according the reception data length: 8bit */ - SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - } - } - /* Receive data in 8 Bit mode */ - else - { - *hspi->pRxBuffPtr++ = *((__IO uint8_t *)&hspi->Instance->DR); - hspi->RxXferCount--; - } - - /* check end of the reception */ - if(hspi->RxXferCount == 0) - { - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - hspi->RxISR = SPI_2linesRxISR_8BITCRC; - return; - } - - /* Disable RXNE interrupt */ - __HAL_SPI_DISABLE_IT(hspi, SPI_IT_RXNE); - - if(hspi->TxXferCount == 0) - { - SPI_CloseRxTx_ISR(hspi); - } - } -} - -/** - * @brief Rx 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; - - tmpreg = *((__IO uint8_t *)&hspi->Instance->DR); - UNUSED(tmpreg); /* To avoid GCC warning */ - - hspi->CRCSize--; - - /* check end of the reception */ - if(hspi->CRCSize == 0) - { - /* Disable RXNE interrupt */ - __HAL_SPI_DISABLE_IT(hspi, SPI_IT_RXNE); - - if(hspi->TxXferCount == 0) - { - SPI_CloseRxTx_ISR(hspi); - } - } -} - -/** - * @brief Tx 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) -{ - /* Transmit data in packing Bit mode */ - if(hspi->TxXferCount >= 2) - { - hspi->Instance->DR = *((uint16_t *)hspi->pTxBuffPtr); - hspi->pTxBuffPtr += sizeof(uint16_t); - hspi->TxXferCount -= 2; - } - /* Transmit data in 8 Bit mode */ - else - { - *(__IO uint8_t *)&hspi->Instance->DR = (*hspi->pTxBuffPtr++); - hspi->TxXferCount--; - } - - /* check the end of the transmission */ - if(hspi->TxXferCount == 0) - { - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - hspi->Instance->CR1 |= SPI_CR1_CRCNEXT; - } - /* Disable TXE interrupt */ - __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE); - - if(hspi->RxXferCount == 0) - { - SPI_CloseRxTx_ISR(hspi); - } - } -} - -/** - * @brief Rx 16Bit 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 == 0) - { - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - hspi->RxISR = SPI_2linesRxISR_16BITCRC; - return; - } - - /* Disable RXNE interrupt */ - __HAL_SPI_DISABLE_IT(hspi, SPI_IT_RXNE); - - if(hspi->TxXferCount == 0) - { - SPI_CloseRxTx_ISR(hspi); - } - } -} - -/** - * @brief Manage the CRC 16bit 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 = hspi->Instance->DR; - UNUSED(tmpreg); /* To avoid GCC warning */ - - /* Disable RXNE interrupt */ - __HAL_SPI_DISABLE_IT(hspi, SPI_IT_RXNE); - - SPI_CloseRxTx_ISR(hspi); -} - -/** - * @brief Tx 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 == 0) - { - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - hspi->Instance->CR1 |= SPI_CR1_CRCNEXT; - } - /* Disable TXE interrupt */ - __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE); - - if(hspi->RxXferCount == 0) - { - SPI_CloseRxTx_ISR(hspi); - } - } -} - -/** - * @brief Manage the CRC 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; - tmpreg = *((__IO uint8_t*)&hspi->Instance->DR); - UNUSED(tmpreg); /* To avoid GCC warning */ - - hspi->CRCSize--; - - if(hspi->CRCSize == 0) - { - SPI_CloseRx_ISR(hspi); - } -} - -/** - * @brief Manage the 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_8BIT(struct __SPI_HandleTypeDef *hspi) -{ - *hspi->pRxBuffPtr++ = (*(__IO uint8_t *)&hspi->Instance->DR); - hspi->RxXferCount--; - - /* Enable CRC Transmission */ - if((hspi->RxXferCount == 1) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)) - { - hspi->Instance->CR1 |= SPI_CR1_CRCNEXT; - } - - if(hspi->RxXferCount == 0) - { - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - hspi->RxISR = SPI_RxISR_8BITCRC; - return; - } - SPI_CloseRx_ISR(hspi); - } -} - -/** - * @brief Manage the CRC 16bit 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; - - tmpreg = hspi->Instance->DR; - UNUSED(tmpreg); /* To avoid GCC warning */ - - /* Disable RXNE and ERR interrupt */ - __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR)); - - SPI_CloseRx_ISR(hspi); -} - -/** - * @brief Manage the 16Bit 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--; - - /* Enable CRC Transmission */ - if((hspi->RxXferCount == 1) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)) - { - hspi->Instance->CR1 |= SPI_CR1_CRCNEXT; - } - - if(hspi->RxXferCount == 0) - { - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - hspi->RxISR = SPI_RxISR_16BITCRC; - return; - } - SPI_CloseRx_ISR(hspi); - } -} - -/** - * @brief Handle the data 8Bit 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 == 0) - { - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - /* Enable CRC Transmission */ - hspi->Instance->CR1 |= SPI_CR1_CRCNEXT; - } - SPI_CloseTx_ISR(hspi); - } -} - -/** - * @brief Handle the data 16Bit 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 == 0) - { - if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - /* Enable CRC Transmission */ - hspi->Instance->CR1 |= SPI_CR1_CRCNEXT; - } - SPI_CloseTx_ISR(hspi); - } -} - -/** - * @brief This function handles 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 - * @retval HAL status - */ -static HAL_StatusTypeDef SPI_WaitFlagStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Flag, uint32_t State, uint32_t Timeout) -{ - uint32_t tickstart = HAL_GetTick(); - - while((hspi->Instance->SR & Flag) != State) - { - if(Timeout != HAL_MAX_DELAY) - { - if((Timeout == 0) || ((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 This function handles SPI Communication Timeout. - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @param Fifo : Fifo to check - * @param State : Fifo state to check - * @param Timeout : Timeout duration - * @retval HAL status - */ -static HAL_StatusTypeDef SPI_WaitFifoStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Fifo, uint32_t State, uint32_t Timeout) -{ - __IO uint8_t tmpreg; - uint32_t tickstart = HAL_GetTick(); - - while((hspi->Instance->SR & Fifo) != State) - { - if((Fifo == SPI_SR_FRLVL) && (State == SPI_FRLVL_EMPTY)) - { - tmpreg = *((__IO uint8_t*)&hspi->Instance->DR); - UNUSED(tmpreg); /* To avoid GCC warning */ - } - - if(Timeout != HAL_MAX_DELAY) - { - if((Timeout == 0) || ((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 This function handles the check of the RX transaction complete. - * @param hspi: pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @param Timeout : Timeout duration - * @retval None - */ -static HAL_StatusTypeDef SPI_EndRxTransaction(SPI_HandleTypeDef *hspi, uint32_t Timeout) -{ - 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); - } - if(SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_BSY, RESET, Timeout) != HAL_OK) - { - hspi->ErrorCode |= HAL_SPI_ERROR_FLAG; - return HAL_TIMEOUT; - } - if(SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, Timeout) != HAL_OK) - { - hspi->ErrorCode |= HAL_SPI_ERROR_FLAG; - return HAL_TIMEOUT; - } - - return HAL_OK; -} - -/** - * @brief This function handles the check of the RXTX or TX transaction complete. - * @param hspi: SPI handle - * @param Timeout : Timeout duration - */ -static HAL_StatusTypeDef SPI_EndRxTxTransaction(SPI_HandleTypeDef *hspi, uint32_t Timeout) -{ - /* Procedure to check the transaction complete */ - if(SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FTLVL, SPI_FTLVL_EMPTY, Timeout) != HAL_OK) - { - hspi->ErrorCode |= HAL_SPI_ERROR_FLAG; - return HAL_TIMEOUT; - } - if(SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_BSY, RESET, Timeout) != HAL_OK) - { - hspi->ErrorCode |= HAL_SPI_ERROR_FLAG; - return HAL_TIMEOUT; - } - if(SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, Timeout) != HAL_OK) - { - hspi->ErrorCode |= HAL_SPI_ERROR_FLAG; - return HAL_TIMEOUT; - } - return HAL_OK; -} - -/** - * @brief This function handles the close 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) -{ - /* Disable ERR interrupt */ - __HAL_SPI_DISABLE_IT(hspi, SPI_IT_ERR); - - /* Check if CRC error occurred */ - if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET) - { - hspi->State = HAL_SPI_STATE_READY; - hspi->ErrorCode|= HAL_SPI_ERROR_CRC; - __HAL_SPI_CLEAR_CRCERRFLAG(hspi); - HAL_SPI_ErrorCallback(hspi); - } - else - { - 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); - } - } -} - -/** - * @brief This function handles the close 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 */ - SPI_EndRxTransaction(hspi,SPI_DEFAULT_TIMEOUT); - - hspi->State = HAL_SPI_STATE_READY; - - /* Check if CRC error occurred */ - if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET) - { - hspi->ErrorCode|= HAL_SPI_ERROR_CRC; - __HAL_SPI_CLEAR_CRCERRFLAG(hspi); - HAL_SPI_ErrorCallback(hspi); - } - else - { - if(hspi->ErrorCode == HAL_SPI_ERROR_NONE) - { - HAL_SPI_RxCpltCallback(hspi); - } - else - { - HAL_SPI_ErrorCallback(hspi); - } - } -} - -/** - * @brief This function handles the close 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) -{ - /* Disable TXE and ERR interrupt */ - __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_ERR)); - - /* 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); - } - - 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 */ -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |