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Diffstat (limited to 'lib/hal-stm32f0/source/stm32f0xx_hal_spi.c')
| -rw-r--r-- | lib/hal-stm32f0/source/stm32f0xx_hal_spi.c | 3910 |
1 files changed, 0 insertions, 3910 deletions
diff --git a/lib/hal-stm32f0/source/stm32f0xx_hal_spi.c b/lib/hal-stm32f0/source/stm32f0xx_hal_spi.c deleted file mode 100644 index 1fc6912e..00000000 --- a/lib/hal-stm32f0/source/stm32f0xx_hal_spi.c +++ /dev/null @@ -1,3910 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f0xx_hal_spi.c - * @author MCD Application Team - * @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 Stream/Channel - (+++) Enable the DMAx clock - (+++) Configure the DMA handle parameters - (+++) Configure the DMA Tx or Rx Stream/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 Stream/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 customized 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 - [..] - Master Receive mode restriction: - (#) In Master unidirectional receive-only mode (MSTR =1, BIDIMODE=0, RXONLY=0) or - bidirectional receive mode (MSTR=1, BIDIMODE=1, BIDIOE=0), to ensure that the SPI - does not initiate a new transfer the following procedure has to be respected: - (##) HAL_SPI_DeInit() - (##) HAL_SPI_Init() - [..] - The HAL drivers do not allow reaching all supported SPI frequencies in the different SPI - modes. Refer to the source code (stm32xxxx_hal_spi.c header) to get a summary of the - maximum SPI frequency that can be reached with a data size of 8 or 16 bits, depending on - the APBx peripheral clock frequency (fPCLK) used by the SPI instance. - - [..] - Data buffer address alignment restriction: - (#) In case more than 1 byte is requested to be transferred, the HAL SPI uses 16-bit access for data buffer. - But there is no support for unaligned accesses on the Cortex-M0 processor. - So, if the user wants to transfer more than 1 byte, it shall ensure that 16-bit aligned address is used for: - (##) pData parameter in HAL_SPI_Transmit(), HAL_SPI_Transmit_IT(), HAL_SPI_Receive() and HAL_SPI_Receive_IT() - (##) pTxData and pRxData parameters in HAL_SPI_TransmitReceive() and HAL_SPI_TransmitReceive_IT() - (#) There is no such restriction when going through DMA by using HAL_SPI_Transmit_DMA(), HAL_SPI_Receive_DMA() - and HAL_SPI_TransmitReceive_DMA(). - - @endverbatim - - Additional table : - - DataSize = SPI_DATASIZE_8BIT: - +----------------------------------------------------------------------------------------------+ - | | | 2Lines Fullduplex | 2Lines RxOnly | 1Line | - | Process | Tranfert mode |---------------------|----------------------|----------------------| - | | | Master | Slave | Master | Slave | Master | Slave | - |==============================================================================================| - | T | Polling | Fpclk/4 | Fpclk/8 | NA | NA | NA | NA | - | X |----------------|----------|----------|-----------|----------|-----------|----------| - | / | Interrupt | Fpclk/4 | Fpclk/16 | NA | NA | NA | NA | - | R |----------------|----------|----------|-----------|----------|-----------|----------| - | X | DMA | Fpclk/2 | Fpclk/2 | NA | NA | NA | NA | - |=========|================|==========|==========|===========|==========|===========|==========| - | | Polling | Fpclk/4 | Fpclk/8 | Fpclk/16 | Fpclk/8 | Fpclk/8 | Fpclk/8 | - | |----------------|----------|----------|-----------|----------|-----------|----------| - | R | Interrupt | Fpclk/8 | Fpclk/16 | Fpclk/8 | Fpclk/8 | Fpclk/8 | Fpclk/4 | - | X |----------------|----------|----------|-----------|----------|-----------|----------| - | | DMA | Fpclk/4 | Fpclk/2 | Fpclk/2 | Fpclk/16 | Fpclk/2 | Fpclk/16 | - |=========|================|==========|==========|===========|==========|===========|==========| - | | Polling | Fpclk/8 | Fpclk/2 | NA | NA | Fpclk/8 | Fpclk/8 | - | |----------------|----------|----------|-----------|----------|-----------|----------| - | T | Interrupt | Fpclk/2 | Fpclk/4 | NA | NA | Fpclk/16 | Fpclk/8 | - | X |----------------|----------|----------|-----------|----------|-----------|----------| - | | DMA | Fpclk/2 | Fpclk/2 | NA | NA | Fpclk/8 | Fpclk/16 | - +----------------------------------------------------------------------------------------------+ - - DataSize = SPI_DATASIZE_16BIT: - +----------------------------------------------------------------------------------------------+ - | | | 2Lines Fullduplex | 2Lines RxOnly | 1Line | - | Process | Tranfert mode |---------------------|----------------------|----------------------| - | | | Master | Slave | Master | Slave | Master | Slave | - |==============================================================================================| - | T | Polling | Fpclk/4 | Fpclk/8 | NA | NA | NA | NA | - | X |----------------|----------|----------|-----------|----------|-----------|----------| - | / | Interrupt | Fpclk/4 | Fpclk/16 | NA | NA | NA | NA | - | R |----------------|----------|----------|-----------|----------|-----------|----------| - | X | DMA | Fpclk/2 | Fpclk/2 | NA | NA | NA | NA | - |=========|================|==========|==========|===========|==========|===========|==========| - | | Polling | Fpclk/4 | Fpclk/8 | Fpclk/16 | Fpclk/8 | Fpclk/8 | Fpclk/8 | - | |----------------|----------|----------|-----------|----------|-----------|----------| - | R | Interrupt | Fpclk/8 | Fpclk/16 | Fpclk/8 | Fpclk/8 | Fpclk/8 | Fpclk/4 | - | X |----------------|----------|----------|-----------|----------|-----------|----------| - | | DMA | Fpclk/4 | Fpclk/2 | Fpclk/2 | Fpclk/16 | Fpclk/2 | Fpclk/16 | - |=========|================|==========|==========|===========|==========|===========|==========| - | | Polling | Fpclk/8 | Fpclk/2 | NA | NA | Fpclk/8 | Fpclk/8 | - | |----------------|----------|----------|-----------|----------|-----------|----------| - | T | Interrupt | Fpclk/2 | Fpclk/4 | NA | NA | Fpclk/16 | Fpclk/8 | - | X |----------------|----------|----------|-----------|----------|-----------|----------| - | | DMA | Fpclk/2 | Fpclk/2 | NA | NA | Fpclk/8 | Fpclk/16 | - +----------------------------------------------------------------------------------------------+ - @note The max SPI frequency depend on SPI data size (4bits, 5bits,..., 8bits,...15bits, 16bits), - SPI mode(2 Lines fullduplex, 2 lines RxOnly, 1 line TX/RX) and Process mode (Polling, IT, DMA). - @note - (#) TX/RX processes are HAL_SPI_TransmitReceive(), HAL_SPI_TransmitReceive_IT() and HAL_SPI_TransmitReceive_DMA() - (#) RX processes are HAL_SPI_Receive(), HAL_SPI_Receive_IT() and HAL_SPI_Receive_DMA() - (#) TX processes are HAL_SPI_Transmit(), HAL_SPI_Transmit_IT() and HAL_SPI_Transmit_DMA() - - ****************************************************************************** - * @attention - * - * <h2><center>© COPYRIGHT(c) 2016 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 "stm32f0xx_hal.h" - -/** @addtogroup STM32F0xx_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 100U -/** - * @} - */ - -/* Private macros ------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* Private function prototypes -----------------------------------------------*/ -/** @defgroup SPI_Private_Functions 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 void SPI_DMAAbortOnError(DMA_HandleTypeDef *hdma); -static void SPI_DMATxAbortCallback(DMA_HandleTypeDef *hdma); -static void SPI_DMARxAbortCallback(DMA_HandleTypeDef *hdma); -static HAL_StatusTypeDef SPI_WaitFlagStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Flag, uint32_t State, - uint32_t Timeout, uint32_t Tickstart); -static HAL_StatusTypeDef SPI_WaitFifoStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Fifo, 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_AbortRx_ISR(SPI_HandleTypeDef *hspi); -static void SPI_AbortTx_ISR(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, uint32_t Tickstart); -static HAL_StatusTypeDef SPI_EndRxTxTransaction(SPI_HandleTypeDef *hspi, uint32_t Timeout, uint32_t Tickstart); -/** - * @} - */ - -/* 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 Initialize the SPI according to the specified parameters - * in the SPI_InitTypeDef and initialize 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_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)); - if (hspi->Init.TIMode == SPI_TIMODE_DISABLE) - { - assert_param(IS_SPI_CPOL(hspi->Init.CLKPolarity)); - assert_param(IS_SPI_CPHA(hspi->Init.CLKPhase)); - } -#if (USE_SPI_CRC != 0U) - assert_param(IS_SPI_CRC_CALCULATION(hspi->Init.CRCCalculation)); - if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - assert_param(IS_SPI_CRC_POLYNOMIAL(hspi->Init.CRCPolynomial)); - assert_param(IS_SPI_CRC_LENGTH(hspi->Init.CRCLength)); - } -#else - hspi->Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE; -#endif /* USE_SPI_CRC */ - - 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 and CRC calculation state */ - WRITE_REG(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 (USE_SPI_CRC != 0U) - /* Configure : CRC Length */ - if (hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT) - { - hspi->Instance->CR1 |= SPI_CR1_CRCL; - } -#endif /* USE_SPI_CRC */ - - /* Configure : NSS management, TI Mode, NSS Pulse, Data size and Rx Fifo Threshold */ - WRITE_REG(hspi->Instance->CR2, (((hspi->Init.NSS >> 16U) & SPI_CR2_SSOE) | hspi->Init.TIMode | - hspi->Init.NSSPMode | hspi->Init.DataSize) | frxth); - -#if (USE_SPI_CRC != 0U) - /*---------------------------- SPIx CRCPOLY Configuration ------------------*/ - /* Configure : CRC Polynomial */ - if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - WRITE_REG(hspi->Instance->CRCPR, hspi->Init.CRCPolynomial); - } -#endif /* USE_SPI_CRC */ - -#if defined(SPI_I2SCFGR_I2SMOD) - /* Activate the SPI mode (Make sure that I2SMOD bit in I2SCFGR register is reset) */ - CLEAR_BIT(hspi->Instance->I2SCFGR, SPI_I2SCFGR_I2SMOD); -#endif /* SPI_I2SCFGR_I2SMOD */ - - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->State = HAL_SPI_STATE_READY; - - return HAL_OK; -} - -/** - * @brief De-Initialize 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 SPI Instance parameter */ - assert_param(IS_SPI_ALL_INSTANCE(hspi->Instance)); - - hspi->State = HAL_SPI_STATE_BUSY; - - /* 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; - - /* Release Lock */ - __HAL_UNLOCK(hspi); - - return HAL_OK; -} - -/** - * @brief Initialize the SPI MSP. - * @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) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(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 De-Initialize the SPI MSP. - * @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) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(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) -{ - uint32_t tickstart = 0U; - HAL_StatusTypeDef errorcode = HAL_OK; - - if ((hspi->Init.DataSize > SPI_DATASIZE_8BIT) || (Size > 1U)) - { - /* in this case, 16-bit access is performed on Data - So, check Data is 16-bit aligned address */ - assert_param(IS_SPI_16BIT_ALIGNED_ADDRESS(pData)); - } - - /* Check Direction parameter */ - assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction)); - - /* Process Locked */ - __HAL_LOCK(hspi); - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - if (hspi->State != HAL_SPI_STATE_READY) - { - errorcode = HAL_BUSY; - goto error; - } - - if ((pData == NULL) || (Size == 0U)) - { - errorcode = HAL_ERROR; - goto error; - } - - /* Set the transaction information */ - hspi->State = HAL_SPI_STATE_BUSY_TX; - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->pTxBuffPtr = (uint8_t *)pData; - hspi->TxXferSize = Size; - hspi->TxXferCount = Size; - - /*Init field not used in handle to zero */ - hspi->pRxBuffPtr = (uint8_t *)NULL; - hspi->RxXferSize = 0U; - hspi->RxXferCount = 0U; - hspi->TxISR = NULL; - hspi->RxISR = NULL; - - /* Configure communication direction : 1Line */ - if (hspi->Init.Direction == SPI_DIRECTION_1LINE) - { - SPI_1LINE_TX(hspi); - } - -#if (USE_SPI_CRC != 0U) - /* Reset CRC Calculation */ - if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SPI_RESET_CRC(hspi); - } -#endif /* USE_SPI_CRC */ - - /* 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) - { - if ((hspi->Init.Mode == SPI_MODE_SLAVE) || (hspi->TxXferCount == 0x01U)) - { - hspi->Instance->DR = *((uint16_t *)pData); - pData += sizeof(uint16_t); - hspi->TxXferCount--; - } - /* Transmit data in 16 Bit mode */ - while (hspi->TxXferCount > 0U) - { - /* Wait until TXE flag is set to send data */ - if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE)) - { - hspi->Instance->DR = *((uint16_t *)pData); - pData += sizeof(uint16_t); - hspi->TxXferCount--; - } - else - { - /* Timeout management */ - if ((Timeout == 0U) || ((Timeout != HAL_MAX_DELAY) && ((HAL_GetTick() - tickstart) >= Timeout))) - { - errorcode = HAL_TIMEOUT; - goto error; - } - } - } - } - /* Transmit data in 8 Bit mode */ - else - { - if ((hspi->Init.Mode == SPI_MODE_SLAVE) || (hspi->TxXferCount == 0x01U)) - { - if (hspi->TxXferCount > 1U) - { - /* write on the data register in packing mode */ - hspi->Instance->DR = *((uint16_t *)pData); - pData += sizeof(uint16_t); - hspi->TxXferCount -= 2U; - } - else - { - *((__IO uint8_t *)&hspi->Instance->DR) = (*pData++); - hspi->TxXferCount--; - } - } - while (hspi->TxXferCount > 0U) - { - /* Wait until TXE flag is set to send data */ - if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE)) - { - if (hspi->TxXferCount > 1U) - { - /* write on the data register in packing mode */ - hspi->Instance->DR = *((uint16_t *)pData); - pData += sizeof(uint16_t); - hspi->TxXferCount -= 2U; - } - else - { - *((__IO uint8_t *)&hspi->Instance->DR) = (*pData++); - hspi->TxXferCount--; - } - } - else - { - /* Timeout management */ - if ((Timeout == 0U) || ((Timeout != HAL_MAX_DELAY) && ((HAL_GetTick() - tickstart) >= Timeout))) - { - errorcode = HAL_TIMEOUT; - goto error; - } - } - } - } -#if (USE_SPI_CRC != 0U) - /* Enable CRC Transmission */ - if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); - } -#endif /* USE_SPI_CRC */ - - /* Check the end of the transaction */ - if (SPI_EndRxTxTransaction(hspi, Timeout, tickstart) != HAL_OK) - { - 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 (hspi->ErrorCode != HAL_SPI_ERROR_NONE) - { - errorcode = HAL_ERROR; - } - -error: - hspi->State = HAL_SPI_STATE_READY; - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - return errorcode; -} - -/** - * @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) -{ -#if (USE_SPI_CRC != 0U) - __IO uint16_t tmpreg = 0U; -#endif /* USE_SPI_CRC */ - uint32_t tickstart = 0U; - HAL_StatusTypeDef errorcode = HAL_OK; - - if ((hspi->Init.DataSize > SPI_DATASIZE_8BIT) || (Size > 1U)) - { - /* in this case, 16-bit access is performed on Data - So, check Data is 16-bit aligned address */ - assert_param(IS_SPI_16BIT_ALIGNED_ADDRESS(pData)); - } - - if ((hspi->Init.Mode == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES)) - { - hspi->State = HAL_SPI_STATE_BUSY_RX; - /* Call transmit-receive function to send Dummy data on Tx line and generate clock on CLK line */ - return HAL_SPI_TransmitReceive(hspi, pData, pData, Size, Timeout); - } - - /* Process Locked */ - __HAL_LOCK(hspi); - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - if (hspi->State != HAL_SPI_STATE_READY) - { - errorcode = HAL_BUSY; - goto error; - } - - if ((pData == NULL) || (Size == 0U)) - { - errorcode = HAL_ERROR; - goto error; - } - - /* Set the transaction information */ - hspi->State = HAL_SPI_STATE_BUSY_RX; - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->pRxBuffPtr = (uint8_t *)pData; - hspi->RxXferSize = Size; - hspi->RxXferCount = Size; - - /*Init field not used in handle to zero */ - hspi->pTxBuffPtr = (uint8_t *)NULL; - hspi->TxXferSize = 0U; - hspi->TxXferCount = 0U; - hspi->RxISR = NULL; - hspi->TxISR = NULL; - -#if (USE_SPI_CRC != 0U) - /* 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--; - } -#endif /* USE_SPI_CRC */ - - /* Set the Rx FiFo threshold */ - if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) - { - /* set fiforxthresold according the reception data length: 16bit */ - CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - } - else - { - /* set fiforxthresold according the reception data length: 8bit */ - SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - } - - /* Configure communication direction: 1Line */ - 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) - { - /* Transfer loop */ - while (hspi->RxXferCount > 0U) - { - /* Check the RXNE flag */ - if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_RXNE)) - { - /* read the received data */ - (* (uint8_t *)pData) = *(__IO uint8_t *)&hspi->Instance->DR; - pData += sizeof(uint8_t); - hspi->RxXferCount--; - } - else - { - /* Timeout management */ - if ((Timeout == 0U) || ((Timeout != HAL_MAX_DELAY) && ((HAL_GetTick() - tickstart) >= Timeout))) - { - errorcode = HAL_TIMEOUT; - goto error; - } - } - } - } - else - { - /* Transfer loop */ - while (hspi->RxXferCount > 0U) - { - /* Check the RXNE flag */ - if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_RXNE)) - { - *((uint16_t *)pData) = hspi->Instance->DR; - pData += sizeof(uint16_t); - hspi->RxXferCount--; - } - else - { - /* Timeout management */ - if ((Timeout == 0U) || ((Timeout != HAL_MAX_DELAY) && ((HAL_GetTick() - tickstart) >= Timeout))) - { - errorcode = HAL_TIMEOUT; - goto error; - } - } - } - } - -#if (USE_SPI_CRC != 0U) - /* Handle the CRC Transmission */ - if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - /* freeze the CRC before the latest data */ - SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); - - /* Read the latest data */ - if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SET, Timeout, tickstart) != HAL_OK) - { - /* the latest data has not been received */ - errorcode = HAL_TIMEOUT; - goto error; - } - - /* Receive last data in 16 Bit mode */ - if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) - { - *((uint16_t *)pData) = hspi->Instance->DR; - } - /* Receive last data in 8 Bit mode */ - else - { - (*(uint8_t *)pData) = *(__IO uint8_t *)&hspi->Instance->DR; - } - - /* Wait the CRC data */ - if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SET, Timeout, tickstart) != HAL_OK) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); - errorcode = HAL_TIMEOUT; - goto error; - } - - /* Read CRC to Flush DR and RXNE flag */ - if (hspi->Init.DataSize == SPI_DATASIZE_16BIT) - { - tmpreg = hspi->Instance->DR; - /* To avoid GCC warning */ - UNUSED(tmpreg); - } - else - { - tmpreg = *(__IO uint8_t *)&hspi->Instance->DR; - /* To avoid GCC warning */ - UNUSED(tmpreg); - - 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, tickstart) != HAL_OK) - { - /* Error on the CRC reception */ - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); - errorcode = HAL_TIMEOUT; - goto error; - } - tmpreg = *(__IO uint8_t *)&hspi->Instance->DR; - /* To avoid GCC warning */ - UNUSED(tmpreg); - } - } - } -#endif /* USE_SPI_CRC */ - - /* Check the end of the transaction */ - if (SPI_EndRxTransaction(hspi, Timeout, tickstart) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_FLAG; - } - -#if (USE_SPI_CRC != 0U) - /* Check if CRC error occurred */ - if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR)) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); - __HAL_SPI_CLEAR_CRCERRFLAG(hspi); - } -#endif /* USE_SPI_CRC */ - - if (hspi->ErrorCode != HAL_SPI_ERROR_NONE) - { - errorcode = HAL_ERROR; - } - -error : - hspi->State = HAL_SPI_STATE_READY; - __HAL_UNLOCK(hspi); - return errorcode; -} - -/** - * @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) -{ - uint32_t tmp = 0U, tmp1 = 0U; -#if (USE_SPI_CRC != 0U) - __IO uint16_t tmpreg = 0U; -#endif /* USE_SPI_CRC */ - uint32_t tickstart = 0U; - /* Variable used to alternate Rx and Tx during transfer */ - uint32_t txallowed = 1U; - HAL_StatusTypeDef errorcode = HAL_OK; - - if ((hspi->Init.DataSize > SPI_DATASIZE_8BIT) || (Size > 1U)) - { - /* in this case, 16-bit access is performed on Data - So, check Data is 16-bit aligned address */ - assert_param(IS_SPI_16BIT_ALIGNED_ADDRESS(pTxData)); - assert_param(IS_SPI_16BIT_ALIGNED_ADDRESS(pRxData)); - } - - /* Check Direction parameter */ - assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction)); - - /* Process Locked */ - __HAL_LOCK(hspi); - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - tmp = hspi->State; - tmp1 = hspi->Init.Mode; - - if (!((tmp == HAL_SPI_STATE_READY) || \ - ((tmp1 == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES) && (tmp == HAL_SPI_STATE_BUSY_RX)))) - { - errorcode = HAL_BUSY; - goto error; - } - - if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U)) - { - errorcode = HAL_ERROR; - goto error; - } - - /* Don't overwrite in case of HAL_SPI_STATE_BUSY_RX */ - if (hspi->State != HAL_SPI_STATE_BUSY_RX) - { - hspi->State = HAL_SPI_STATE_BUSY_TX_RX; - } - - /* Set the transaction information */ - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->pRxBuffPtr = (uint8_t *)pRxData; - hspi->RxXferCount = Size; - hspi->RxXferSize = Size; - hspi->pTxBuffPtr = (uint8_t *)pTxData; - hspi->TxXferCount = Size; - hspi->TxXferSize = Size; - - /*Init field not used in handle to zero */ - hspi->RxISR = NULL; - hspi->TxISR = NULL; - -#if (USE_SPI_CRC != 0U) - /* Reset CRC Calculation */ - if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SPI_RESET_CRC(hspi); - } -#endif /* USE_SPI_CRC */ - - /* Set the Rx Fifo threshold */ - if ((hspi->Init.DataSize > SPI_DATASIZE_8BIT) || (hspi->RxXferCount > 1U)) - { - /* 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) - { - if ((hspi->Init.Mode == SPI_MODE_SLAVE) || (hspi->TxXferCount == 0x01U)) - { - hspi->Instance->DR = *((uint16_t *)pTxData); - pTxData += sizeof(uint16_t); - hspi->TxXferCount--; - } - while ((hspi->TxXferCount > 0U) || (hspi->RxXferCount > 0U)) - { - /* Check TXE flag */ - if (txallowed && (hspi->TxXferCount > 0U) && (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE))) - { - hspi->Instance->DR = *((uint16_t *)pTxData); - pTxData += sizeof(uint16_t); - hspi->TxXferCount--; - /* Next Data is a reception (Rx). Tx not allowed */ - txallowed = 0U; - -#if (USE_SPI_CRC != 0U) - /* Enable CRC Transmission */ - if ((hspi->TxXferCount == 0U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)) - { - /* Set NSS Soft to received correctly the CRC on slave mode with NSS pulse activated */ - if (((hspi->Instance->CR1 & SPI_CR1_MSTR) == 0U) && ((hspi->Instance->CR2 & SPI_CR2_NSSP) == SPI_CR2_NSSP)) - { - SET_BIT(hspi->Instance->CR1, SPI_CR1_SSM); - } - SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); - } -#endif /* USE_SPI_CRC */ - } - - /* Check RXNE flag */ - if ((hspi->RxXferCount > 0U) && (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_RXNE))) - { - *((uint16_t *)pRxData) = hspi->Instance->DR; - pRxData += sizeof(uint16_t); - hspi->RxXferCount--; - /* Next Data is a Transmission (Tx). Tx is allowed */ - txallowed = 1U; - } - if ((Timeout != HAL_MAX_DELAY) && ((HAL_GetTick() - tickstart) >= Timeout)) - { - errorcode = HAL_TIMEOUT; - goto error; - } - } - } - /* Transmit and Receive data in 8 Bit mode */ - else - { - if ((hspi->Init.Mode == SPI_MODE_SLAVE) || (hspi->TxXferCount == 0x01U)) - { - if (hspi->TxXferCount > 1U) - { - hspi->Instance->DR = *((uint16_t *)pTxData); - pTxData += sizeof(uint16_t); - hspi->TxXferCount -= 2U; - } - else - { - *(__IO uint8_t *)&hspi->Instance->DR = (*pTxData++); - hspi->TxXferCount--; - } - } - while ((hspi->TxXferCount > 0U) || (hspi->RxXferCount > 0U)) - { - /* check TXE flag */ - if (txallowed && (hspi->TxXferCount > 0U) && (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE))) - { - if (hspi->TxXferCount > 1U) - { - hspi->Instance->DR = *((uint16_t *)pTxData); - pTxData += sizeof(uint16_t); - hspi->TxXferCount -= 2U; - } - else - { - *(__IO uint8_t *)&hspi->Instance->DR = (*pTxData++); - hspi->TxXferCount--; - } - /* Next Data is a reception (Rx). Tx not allowed */ - txallowed = 0U; - -#if (USE_SPI_CRC != 0U) - /* Enable CRC Transmission */ - if ((hspi->TxXferCount == 0U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)) - { - /* Set NSS Soft to received correctly the CRC on slave mode with NSS pulse activated */ - if (((hspi->Instance->CR1 & SPI_CR1_MSTR) == 0U) && ((hspi->Instance->CR2 & SPI_CR2_NSSP) == SPI_CR2_NSSP)) - { - SET_BIT(hspi->Instance->CR1, SPI_CR1_SSM); - } - SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); - } -#endif /* USE_SPI_CRC */ - } - - /* Wait until RXNE flag is reset */ - if ((hspi->RxXferCount > 0U) && (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_RXNE))) - { - if (hspi->RxXferCount > 1U) - { - *((uint16_t *)pRxData) = hspi->Instance->DR; - pRxData += sizeof(uint16_t); - hspi->RxXferCount -= 2U; - if (hspi->RxXferCount <= 1U) - { - /* set fiforxthresold before to switch on 8 bit data size */ - SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - } - } - else - { - (*(uint8_t *)pRxData++) = *(__IO uint8_t *)&hspi->Instance->DR; - hspi->RxXferCount--; - } - /* Next Data is a Transmission (Tx). Tx is allowed */ - txallowed = 1U; - } - if ((Timeout != HAL_MAX_DELAY) && ((HAL_GetTick() - tickstart) >= Timeout)) - { - errorcode = HAL_TIMEOUT; - goto error; - } - } - } - -#if (USE_SPI_CRC != 0U) - /* 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, SET, Timeout, tickstart) != HAL_OK) - { - /* Error on the CRC reception */ - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); - errorcode = HAL_TIMEOUT; - goto error; - } - /* Read CRC */ - if (hspi->Init.DataSize == SPI_DATASIZE_16BIT) - { - tmpreg = hspi->Instance->DR; - /* To avoid GCC warning */ - UNUSED(tmpreg); - } - else - { - tmpreg = *(__IO uint8_t *)&hspi->Instance->DR; - /* To avoid GCC warning */ - UNUSED(tmpreg); - - if (hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT) - { - if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SET, Timeout, tickstart) != HAL_OK) - { - /* Error on the CRC reception */ - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); - errorcode = HAL_TIMEOUT; - goto error; - } - tmpreg = *(__IO uint8_t *)&hspi->Instance->DR; - /* To avoid GCC warning */ - UNUSED(tmpreg); - } - } - } - - /* Check if CRC error occurred */ - if (__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR)) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); - /* Clear CRC Flag */ - __HAL_SPI_CLEAR_CRCERRFLAG(hspi); - - errorcode = HAL_ERROR; - } -#endif /* USE_SPI_CRC */ - - /* Check the end of the transaction */ - if (SPI_EndRxTxTransaction(hspi, Timeout, tickstart) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_FLAG; - } - - if (hspi->ErrorCode != HAL_SPI_ERROR_NONE) - { - errorcode = HAL_ERROR; - } - -error : - hspi->State = HAL_SPI_STATE_READY; - __HAL_UNLOCK(hspi); - return errorcode; -} - -/** - * @brief Transmit an amount of data in non-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) -{ - HAL_StatusTypeDef errorcode = HAL_OK; - - if ((hspi->Init.DataSize > SPI_DATASIZE_8BIT) || (Size > 1U)) - { - /* in this case, 16-bit access is performed on Data - So, check Data is 16-bit aligned address */ - assert_param(IS_SPI_16BIT_ALIGNED_ADDRESS(pData)); - } - - /* Check Direction parameter */ - assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction)); - - /* Process Locked */ - __HAL_LOCK(hspi); - - if ((pData == NULL) || (Size == 0U)) - { - errorcode = HAL_ERROR; - goto error; - } - - if (hspi->State != HAL_SPI_STATE_READY) - { - errorcode = HAL_BUSY; - goto error; - } - - /* Set the transaction information */ - hspi->State = HAL_SPI_STATE_BUSY_TX; - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->pTxBuffPtr = (uint8_t *)pData; - hspi->TxXferSize = Size; - hspi->TxXferCount = Size; - - /* Init field not used in handle to zero */ - hspi->pRxBuffPtr = (uint8_t *)NULL; - hspi->RxXferSize = 0U; - hspi->RxXferCount = 0U; - hspi->RxISR = NULL; - - /* Set the function for IT treatment */ - if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) - { - hspi->TxISR = SPI_TxISR_16BIT; - } - else - { - hspi->TxISR = SPI_TxISR_8BIT; - } - - /* Configure communication direction : 1Line */ - if (hspi->Init.Direction == SPI_DIRECTION_1LINE) - { - SPI_1LINE_TX(hspi); - } - -#if (USE_SPI_CRC != 0U) - /* Reset CRC Calculation */ - if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SPI_RESET_CRC(hspi); - } -#endif /* USE_SPI_CRC */ - - /* Enable TXE and ERR interrupt */ - __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_ERR)); - - - /* Check if the SPI is already enabled */ - if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) - { - /* Enable SPI peripheral */ - __HAL_SPI_ENABLE(hspi); - } - -error : - __HAL_UNLOCK(hspi); - return errorcode; -} - -/** - * @brief Receive an amount of data in non-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) -{ - HAL_StatusTypeDef errorcode = HAL_OK; - - if ((hspi->Init.DataSize > SPI_DATASIZE_8BIT) || (Size > 1U)) - { - /* in this case, 16-bit access is performed on Data - So, check Data is 16-bit aligned address */ - assert_param(IS_SPI_16BIT_ALIGNED_ADDRESS(pData)); - } - - if ((hspi->Init.Direction == SPI_DIRECTION_2LINES) && (hspi->Init.Mode == SPI_MODE_MASTER)) - { - hspi->State = HAL_SPI_STATE_BUSY_RX; - /* Call transmit-receive function to send Dummy data on Tx line and generate clock on CLK line */ - return HAL_SPI_TransmitReceive_IT(hspi, pData, pData, Size); - } - - /* Process Locked */ - __HAL_LOCK(hspi); - - if (hspi->State != HAL_SPI_STATE_READY) - { - errorcode = HAL_BUSY; - goto error; - } - - if ((pData == NULL) || (Size == 0U)) - { - errorcode = HAL_ERROR; - goto error; - } - - /* Set the transaction information */ - hspi->State = HAL_SPI_STATE_BUSY_RX; - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->pRxBuffPtr = (uint8_t *)pData; - hspi->RxXferSize = Size; - hspi->RxXferCount = Size; - - /* Init field not used in handle to zero */ - hspi->pTxBuffPtr = (uint8_t *)NULL; - hspi->TxXferSize = 0U; - hspi->TxXferCount = 0U; - hspi->TxISR = NULL; - - /* Check the data size to adapt Rx threshold and the set the function for IT treatment */ - if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) - { - /* Set fiforxthresold according the reception data length: 16 bit */ - CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - hspi->RxISR = SPI_RxISR_16BIT; - } - else - { - /* Set fiforxthresold according the reception data length: 8 bit */ - SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - hspi->RxISR = SPI_RxISR_8BIT; - } - - /* Configure communication direction : 1Line */ - if (hspi->Init.Direction == SPI_DIRECTION_1LINE) - { - SPI_1LINE_RX(hspi); - } - -#if (USE_SPI_CRC != 0U) - /* Reset CRC Calculation */ - if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - hspi->CRCSize = 1U; - if ((hspi->Init.DataSize <= SPI_DATASIZE_8BIT) && (hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT)) - { - hspi->CRCSize = 2U; - } - SPI_RESET_CRC(hspi); - } - else - { - hspi->CRCSize = 0U; - } -#endif /* USE_SPI_CRC */ - - /* Enable TXE and ERR interrupt */ - __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR)); - - /* 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); - } - -error : - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - return errorcode; -} - -/** - * @brief Transmit and Receive an amount of data in non-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) -{ - uint32_t tmp = 0U, tmp1 = 0U; - HAL_StatusTypeDef errorcode = HAL_OK; - - if ((hspi->Init.DataSize > SPI_DATASIZE_8BIT) || (Size > 1U)) - { - /* in this case, 16-bit access is performed on Data - So, check Data is 16-bit aligned address */ - assert_param(IS_SPI_16BIT_ALIGNED_ADDRESS(pTxData)); - assert_param(IS_SPI_16BIT_ALIGNED_ADDRESS(pRxData)); - } - - /* Check Direction parameter */ - assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction)); - - /* Process locked */ - __HAL_LOCK(hspi); - - tmp = hspi->State; - tmp1 = hspi->Init.Mode; - - if (!((tmp == HAL_SPI_STATE_READY) || \ - ((tmp1 == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES) && (tmp == HAL_SPI_STATE_BUSY_RX)))) - { - errorcode = HAL_BUSY; - goto error; - } - - if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U)) - { - errorcode = HAL_ERROR; - goto error; - } - - /* Don't overwrite in case of HAL_SPI_STATE_BUSY_RX */ - if (hspi->State != HAL_SPI_STATE_BUSY_RX) - { - hspi->State = HAL_SPI_STATE_BUSY_TX_RX; - } - - /* Set the transaction information */ - 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; - - /* 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; - } - -#if (USE_SPI_CRC != 0U) - /* Reset CRC Calculation */ - if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - hspi->CRCSize = 1U; - if ((hspi->Init.DataSize <= SPI_DATASIZE_8BIT) && (hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT)) - { - hspi->CRCSize = 2U; - } - SPI_RESET_CRC(hspi); - } - else - { - hspi->CRCSize = 0U; - } -#endif /* USE_SPI_CRC */ - - /* 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 >= 2U)) - { - /* Set fiforxthresold according the reception data length: 16 bit */ - CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - } - else - { - /* Set fiforxthresold 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)); - - /* Check if the SPI is already enabled */ - if ((hspi->Instance->CR1 & SPI_CR1_SPE) != SPI_CR1_SPE) - { - /* Enable SPI peripheral */ - __HAL_SPI_ENABLE(hspi); - } - -error : - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - return errorcode; -} - -/** - * @brief Transmit an amount of data in non-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) -{ - HAL_StatusTypeDef errorcode = HAL_OK; - - /* check tx dma handle */ - assert_param(IS_SPI_DMA_HANDLE(hspi->hdmatx)); - - /* Check Direction parameter */ - assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction)); - - /* Process Locked */ - __HAL_LOCK(hspi); - - if (hspi->State != HAL_SPI_STATE_READY) - { - errorcode = HAL_BUSY; - goto error; - } - - if ((pData == NULL) || (Size == 0U)) - { - errorcode = HAL_ERROR; - goto error; - } - - /* Set the transaction information */ - hspi->State = HAL_SPI_STATE_BUSY_TX; - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->pTxBuffPtr = (uint8_t *)pData; - hspi->TxXferSize = Size; - hspi->TxXferCount = Size; - - /* Init field not used in handle to zero */ - hspi->pRxBuffPtr = (uint8_t *)NULL; - hspi->TxISR = NULL; - hspi->RxISR = NULL; - hspi->RxXferSize = 0U; - hspi->RxXferCount = 0U; - - /* Configure communication direction : 1Line */ - if (hspi->Init.Direction == SPI_DIRECTION_1LINE) - { - SPI_1LINE_TX(hspi); - } - -#if (USE_SPI_CRC != 0U) - /* Reset CRC Calculation */ - if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SPI_RESET_CRC(hspi); - } -#endif /* USE_SPI_CRC */ - - /* 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; - - /* Set the DMA AbortCpltCallback */ - hspi->hdmatx->XferAbortCallback = NULL; - - 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 & 0x1U) == 0U) - { - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX); - hspi->TxXferCount = (hspi->TxXferCount >> 1U); - } - else - { - SET_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX); - hspi->TxXferCount = (hspi->TxXferCount >> 1U) + 1U; - } - } - - /* Enable the Tx DMA Stream/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 the SPI Error Interrupt Bit */ - __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_ERR)); - - /* Enable Tx DMA Request */ - SET_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN); - -error : - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - return errorcode; -} - -/** - * @brief Receive an amount of data in non-blocking mode with DMA. - * @note In case of MASTER mode and SPI_DIRECTION_2LINES direction, hdmatx shall be defined. - * @param hspi pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @param pData pointer to data buffer - * @note When the CRC feature is enabled the pData Length must be Size + 1. - * @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) -{ - HAL_StatusTypeDef errorcode = HAL_OK; - - /* check rx dma handle */ - assert_param(IS_SPI_DMA_HANDLE(hspi->hdmarx)); - - if ((hspi->Init.Direction == SPI_DIRECTION_2LINES) && (hspi->Init.Mode == SPI_MODE_MASTER)) - { - hspi->State = HAL_SPI_STATE_BUSY_RX; - - /* check tx dma handle */ - assert_param(IS_SPI_DMA_HANDLE(hspi->hdmatx)); - - /* Call transmit-receive function to send Dummy data on Tx line and generate clock on CLK line */ - return HAL_SPI_TransmitReceive_DMA(hspi, pData, pData, Size); - } - - /* Process Locked */ - __HAL_LOCK(hspi); - - if (hspi->State != HAL_SPI_STATE_READY) - { - errorcode = HAL_BUSY; - goto error; - } - - if ((pData == NULL) || (Size == 0U)) - { - errorcode = HAL_ERROR; - goto error; - } - - /* Set the transaction information */ - hspi->State = HAL_SPI_STATE_BUSY_RX; - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - hspi->pRxBuffPtr = (uint8_t *)pData; - hspi->RxXferSize = Size; - hspi->RxXferCount = Size; - - /*Init field not used in handle to zero */ - hspi->RxISR = NULL; - hspi->TxISR = NULL; - hspi->TxXferSize = 0U; - hspi->TxXferCount = 0U; - - /* Configure communication direction : 1Line */ - if (hspi->Init.Direction == SPI_DIRECTION_1LINE) - { - SPI_1LINE_RX(hspi); - } - -#if (USE_SPI_CRC != 0U) - /* Reset CRC Calculation */ - if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SPI_RESET_CRC(hspi); - } -#endif /* USE_SPI_CRC */ - -#if defined (STM32F030x6) || defined (STM32F030x8) || defined (STM32F031x6)|| defined (STM32F038xx) || defined (STM32F051x8) || defined (STM32F058xx) - /* Packing mode management is enabled by the DMA settings */ - if ((hspi->Init.DataSize <= SPI_DATASIZE_8BIT) && (hspi->hdmarx->Init.MemDataAlignment == DMA_MDATAALIGN_HALFWORD)) - { - /* Restriction the DMA data received is not allowed in this mode */ - errorcode = HAL_ERROR; - goto error; - } -#endif - - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMARX); - if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) - { - /* Set fiforxthresold according the reception data length: 16bit */ - CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - } - else - { - /* Set fiforxthresold according the reception data length: 8bit */ - SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - - if (hspi->hdmarx->Init.MemDataAlignment == DMA_MDATAALIGN_HALFWORD) - { - /* set fiforxthresold according the reception data length: 16bit */ - CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - - if ((hspi->RxXferCount & 0x1U) == 0x0U) - { - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMARX); - hspi->RxXferCount = hspi->RxXferCount >> 1U; - } - else - { - SET_BIT(hspi->Instance->CR2, SPI_CR2_LDMARX); - hspi->RxXferCount = (hspi->RxXferCount >> 1U) + 1U; - } - } - } - - /* 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; - - /* Set the DMA AbortCpltCallback */ - hspi->hdmarx->XferAbortCallback = NULL; - - /* Enable the Rx DMA Stream/Channel */ - HAL_DMA_Start_IT(hspi->hdmarx, (uint32_t)&hspi->Instance->DR, (uint32_t)hspi->pRxBuffPtr, hspi->RxXferCount); - - /* 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 the SPI Error Interrupt Bit */ - __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_ERR)); - - /* Enable Rx DMA Request */ - SET_BIT(hspi->Instance->CR2, SPI_CR2_RXDMAEN); - -error: - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - return errorcode; -} - -/** - * @brief Transmit and Receive an amount of data in non-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) -{ - uint32_t tmp = 0U, tmp1 = 0U; - HAL_StatusTypeDef errorcode = HAL_OK; - - /* check rx & tx dma handles */ - assert_param(IS_SPI_DMA_HANDLE(hspi->hdmarx)); - assert_param(IS_SPI_DMA_HANDLE(hspi->hdmatx)); - - /* Check Direction parameter */ - assert_param(IS_SPI_DIRECTION_2LINES(hspi->Init.Direction)); - - /* Process locked */ - __HAL_LOCK(hspi); - - tmp = hspi->State; - tmp1 = hspi->Init.Mode; - if (!((tmp == HAL_SPI_STATE_READY) || - ((tmp1 == SPI_MODE_MASTER) && (hspi->Init.Direction == SPI_DIRECTION_2LINES) && (tmp == HAL_SPI_STATE_BUSY_RX)))) - { - errorcode = HAL_BUSY; - goto error; - } - - if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U)) - { - errorcode = HAL_ERROR; - goto error; - } - - /* Don't overwrite in case of HAL_SPI_STATE_BUSY_RX */ - if (hspi->State != HAL_SPI_STATE_BUSY_RX) - { - hspi->State = HAL_SPI_STATE_BUSY_TX_RX; - } - - /* Set the transaction information */ - 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; - - /* Init field not used in handle to zero */ - hspi->RxISR = NULL; - hspi->TxISR = NULL; - -#if (USE_SPI_CRC != 0U) - /* Reset CRC Calculation */ - if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SPI_RESET_CRC(hspi); - } -#endif /* USE_SPI_CRC */ - -#if defined (STM32F030x6) || defined (STM32F030x8) || defined (STM32F031x6) || defined (STM32F038xx) || defined (STM32F051x8) || defined (STM32F058xx) - /* packing mode management is enabled by the DMA settings */ - if ((hspi->Init.DataSize <= SPI_DATASIZE_8BIT) && (hspi->hdmarx->Init.MemDataAlignment == DMA_MDATAALIGN_HALFWORD)) - { - /* Restriction the DMA data received is not allowed in this mode */ - errorcode = HAL_ERROR; - goto error; - } -#endif - - - /* Reset the threshold bit */ - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX | 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 fiforxthresold 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 & 0x1U) == 0x0U) - { - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX); - hspi->TxXferCount = hspi->TxXferCount >> 1U; - } - else - { - SET_BIT(hspi->Instance->CR2, SPI_CR2_LDMATX); - hspi->TxXferCount = (hspi->TxXferCount >> 1U) + 1U; - } - } - - if (hspi->hdmarx->Init.MemDataAlignment == DMA_MDATAALIGN_HALFWORD) - { - /* Set fiforxthresold according the reception data length: 16bit */ - CLEAR_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - - if ((hspi->RxXferCount & 0x1U) == 0x0U) - { - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_LDMARX); - hspi->RxXferCount = hspi->RxXferCount >> 1U; - } - else - { - SET_BIT(hspi->Instance->CR2, SPI_CR2_LDMARX); - hspi->RxXferCount = (hspi->RxXferCount >> 1U) + 1U; - } - } - } - - /* Check if we are in Rx only or in Rx/Tx Mode and configure the DMA transfer complete callback */ - if (hspi->State == HAL_SPI_STATE_BUSY_RX) - { - /* Set the SPI Rx DMA Half transfer complete callback */ - hspi->hdmarx->XferHalfCpltCallback = SPI_DMAHalfReceiveCplt; - hspi->hdmarx->XferCpltCallback = SPI_DMAReceiveCplt; - } - else - { - /* Set the SPI Tx/Rx DMA Half transfer complete callback */ - hspi->hdmarx->XferHalfCpltCallback = SPI_DMAHalfTransmitReceiveCplt; - hspi->hdmarx->XferCpltCallback = SPI_DMATransmitReceiveCplt; - } - - /* Set the DMA error callback */ - hspi->hdmarx->XferErrorCallback = SPI_DMAError; - - /* Set the DMA AbortCpltCallback */ - hspi->hdmarx->XferAbortCallback = NULL; - - /* Enable the Rx DMA Stream/Channel */ - HAL_DMA_Start_IT(hspi->hdmarx, (uint32_t)&hspi->Instance->DR, (uint32_t)hspi->pRxBuffPtr, hspi->RxXferCount); - - /* Enable Rx DMA Request */ - SET_BIT(hspi->Instance->CR2, SPI_CR2_RXDMAEN); - - /* 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; - hspi->hdmatx->XferErrorCallback = NULL; - hspi->hdmatx->XferAbortCallback = NULL; - - /* Enable the Tx DMA Stream/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 the SPI Error Interrupt Bit */ - __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_ERR)); - - /* Enable Tx DMA Request */ - SET_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN); - -error : - /* Process Unlocked */ - __HAL_UNLOCK(hspi); - return errorcode; -} - -/** - * @brief Abort ongoing transfer (blocking mode). - * @param hspi SPI handle. - * @note This procedure could be used for aborting any ongoing transfer (Tx and Rx), - * started in Interrupt or DMA mode. - * This procedure performs following operations : - * - Disable SPI Interrupts (depending of transfer direction) - * - Disable the DMA transfer in the peripheral register (if enabled) - * - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode) - * - Set handle State to READY - * @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed. - * @retval HAL status -*/ -HAL_StatusTypeDef HAL_SPI_Abort(SPI_HandleTypeDef *hspi) -{ - HAL_StatusTypeDef errorcode; - __IO uint32_t count, resetcount; - - /* Initialized local variable */ - errorcode = HAL_OK; - resetcount = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U); - count = resetcount; - - /* Disable TXEIE, RXNEIE and ERRIE(mode fault event, overrun error, TI frame error) interrupts */ - if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXEIE)) - { - hspi->TxISR = SPI_AbortTx_ISR; - /* Wait HAL_SPI_STATE_ABORT state */ - do - { - if (count-- == 0U) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT); - break; - } - } - while (hspi->State != HAL_SPI_STATE_ABORT); - /* Reset Timeout Counter */ - count = resetcount; - } - - if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXNEIE)) - { - hspi->RxISR = SPI_AbortRx_ISR; - /* Wait HAL_SPI_STATE_ABORT state */ - do - { - if (count-- == 0U) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT); - break; - } - } - while (hspi->State != HAL_SPI_STATE_ABORT); - /* Reset Timeout Counter */ - count = resetcount; - } - - /* Clear ERRIE interrupts in case of DMA Mode */ - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_ERRIE); - - /* Disable the SPI DMA Tx or SPI DMA Rx request if enabled */ - if ((HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXDMAEN)) || (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXDMAEN))) - { - /* Abort the SPI DMA Tx Stream/Channel : use blocking DMA Abort API (no callback) */ - if (hspi->hdmatx != NULL) - { - /* Set the SPI DMA Abort callback : - will lead to call HAL_SPI_AbortCpltCallback() at end of DMA abort procedure */ - hspi->hdmatx->XferAbortCallback = NULL; - - /* Abort DMA Tx Handle linked to SPI Peripheral */ - if (HAL_DMA_Abort(hspi->hdmatx) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - - /* Disable Tx DMA Request */ - CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_TXDMAEN)); - - if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - - /* Disable SPI Peripheral */ - __HAL_SPI_DISABLE(hspi); - - /* Empty the FRLVL fifo */ - if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - } - /* Abort the SPI DMA Rx Stream/Channel : use blocking DMA Abort API (no callback) */ - if (hspi->hdmarx != NULL) - { - /* Set the SPI DMA Abort callback : - will lead to call HAL_SPI_AbortCpltCallback() at end of DMA abort procedure */ - hspi->hdmarx->XferAbortCallback = NULL; - - /* Abort DMA Rx Handle linked to SPI Peripheral */ - if (HAL_DMA_Abort(hspi->hdmarx) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - - /* Disable peripheral */ - __HAL_SPI_DISABLE(hspi); - - /* Control the BSY flag */ - if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_BSY, RESET, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - - /* Empty the FRLVL fifo */ - if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - - /* Disable Rx DMA Request */ - CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_RXDMAEN)); - } - } - /* Reset Tx and Rx transfer counters */ - hspi->RxXferCount = 0U; - hspi->TxXferCount = 0U; - - /* Check error during Abort procedure */ - if (hspi->ErrorCode == HAL_SPI_ERROR_ABORT) - { - /* return HAL_Error in case of error during Abort procedure */ - errorcode = HAL_ERROR; - } - else - { - /* Reset errorCode */ - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - } - - /* Clear the Error flags in the SR register */ - __HAL_SPI_CLEAR_OVRFLAG(hspi); - __HAL_SPI_CLEAR_FREFLAG(hspi); - - /* Restore hspi->state to ready */ - hspi->State = HAL_SPI_STATE_READY; - - return errorcode; -} - -/** - * @brief Abort ongoing transfer (Interrupt mode). - * @param hspi SPI handle. - * @note This procedure could be used for aborting any ongoing transfer (Tx and Rx), - * started in Interrupt or DMA mode. - * This procedure performs following operations : - * - Disable SPI Interrupts (depending of transfer direction) - * - Disable the DMA transfer in the peripheral register (if enabled) - * - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode) - * - Set handle State to READY - * - At abort completion, call user abort complete callback - * @note This procedure is executed in Interrupt mode, meaning that abort procedure could be - * considered as completed only when user abort complete callback is executed (not when exiting function). - * @retval HAL status -*/ -HAL_StatusTypeDef HAL_SPI_Abort_IT(SPI_HandleTypeDef *hspi) -{ - HAL_StatusTypeDef errorcode; - uint32_t abortcplt ; - __IO uint32_t count, resetcount; - - /* Initialized local variable */ - errorcode = HAL_OK; - abortcplt = 1U; - resetcount = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U); - count = resetcount; - - /* Change Rx and Tx Irq Handler to Disable TXEIE, RXNEIE and ERRIE interrupts */ - if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXEIE)) - { - hspi->TxISR = SPI_AbortTx_ISR; - /* Wait HAL_SPI_STATE_ABORT state */ - do - { - if (count-- == 0U) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT); - break; - } - } - while (hspi->State != HAL_SPI_STATE_ABORT); - /* Reset Timeout Counter */ - count = resetcount; - } - - if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXNEIE)) - { - hspi->RxISR = SPI_AbortRx_ISR; - /* Wait HAL_SPI_STATE_ABORT state */ - do - { - if (count-- == 0U) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT); - break; - } - } - while (hspi->State != HAL_SPI_STATE_ABORT); - /* Reset Timeout Counter */ - count = resetcount; - } - - /* Clear ERRIE interrupts in case of DMA Mode */ - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_ERRIE); - - /* If DMA Tx and/or DMA Rx Handles are associated to SPI Handle, DMA Abort complete callbacks should be initialised - before any call to DMA Abort functions */ - /* DMA Tx Handle is valid */ - if (hspi->hdmatx != NULL) - { - /* Set DMA Abort Complete callback if UART DMA Tx request if enabled. - Otherwise, set it to NULL */ - if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXDMAEN)) - { - hspi->hdmatx->XferAbortCallback = SPI_DMATxAbortCallback; - } - else - { - hspi->hdmatx->XferAbortCallback = NULL; - } - } - /* DMA Rx Handle is valid */ - if (hspi->hdmarx != NULL) - { - /* Set DMA Abort Complete callback if UART DMA Rx request if enabled. - Otherwise, set it to NULL */ - if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXDMAEN)) - { - hspi->hdmarx->XferAbortCallback = SPI_DMARxAbortCallback; - } - else - { - hspi->hdmarx->XferAbortCallback = NULL; - } - } - - /* Disable the SPI DMA Tx or the SPI Rx request if enabled */ - if ((HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXDMAEN)) && (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXDMAEN))) - { - /* Abort the SPI DMA Tx Stream/Channel */ - if (hspi->hdmatx != NULL) - { - /* Abort DMA Tx Handle linked to SPI Peripheral */ - if (HAL_DMA_Abort_IT(hspi->hdmatx) != HAL_OK) - { - hspi->hdmatx->XferAbortCallback = NULL; - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - else - { - abortcplt = 0U; - } - } - /* Abort the SPI DMA Rx Stream/Channel */ - if (hspi->hdmarx != NULL) - { - /* Abort DMA Rx Handle linked to SPI Peripheral */ - if (HAL_DMA_Abort_IT(hspi->hdmarx) != HAL_OK) - { - hspi->hdmarx->XferAbortCallback = NULL; - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - abortcplt = 1U; - } - else - { - abortcplt = 0U; - } - } - } - - /* Disable the SPI DMA Tx or the SPI Rx request if enabled */ - if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXDMAEN)) - { - /* Abort the SPI DMA Tx Stream/Channel */ - if (hspi->hdmatx != NULL) - { - /* Abort DMA Tx Handle linked to SPI Peripheral */ - if (HAL_DMA_Abort_IT(hspi->hdmatx) != HAL_OK) - { - hspi->hdmatx->XferAbortCallback = NULL; - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - else - { - abortcplt = 0U; - } - } - } - /* Disable the SPI DMA Tx or the SPI Rx request if enabled */ - if (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXDMAEN)) - { - /* Abort the SPI DMA Rx Stream/Channel */ - if (hspi->hdmarx != NULL) - { - /* Abort DMA Rx Handle linked to SPI Peripheral */ - if (HAL_DMA_Abort_IT(hspi->hdmarx) != HAL_OK) - { - hspi->hdmarx->XferAbortCallback = NULL; - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - else - { - abortcplt = 0U; - } - } - } - - if (abortcplt == 1U) - { - /* Reset Tx and Rx transfer counters */ - hspi->RxXferCount = 0U; - hspi->TxXferCount = 0U; - - /* Check error during Abort procedure */ - if (hspi->ErrorCode == HAL_SPI_ERROR_ABORT) - { - /* return HAL_Error in case of error during Abort procedure */ - errorcode = HAL_ERROR; - } - else - { - /* Reset errorCode */ - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - } - - /* Clear the Error flags in the SR register */ - __HAL_SPI_CLEAR_OVRFLAG(hspi); - __HAL_SPI_CLEAR_FREFLAG(hspi); - - /* Restore hspi->State to Ready */ - hspi->State = HAL_SPI_STATE_READY; - - /* As no DMA to be aborted, call directly user Abort complete callback */ - HAL_SPI_AbortCpltCallback(hspi); - } - - return errorcode; -} - -/** - * @brief Pause 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 Resume 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 Stop 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/Channel */ - if (hspi->hdmatx != NULL) - { - HAL_DMA_Abort(hspi->hdmatx); - } - /* Abort the SPI DMA rx Stream/Channel */ - 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 Handle 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) -{ - uint32_t itsource = hspi->Instance->CR2; - uint32_t itflag = hspi->Instance->SR; - - /* SPI in mode Receiver ----------------------------------------------------*/ - if (((itflag & SPI_FLAG_OVR) == RESET) && - ((itflag & SPI_FLAG_RXNE) != RESET) && ((itsource & SPI_IT_RXNE) != RESET)) - { - hspi->RxISR(hspi); - return; - } - - /* SPI in mode Transmitter -------------------------------------------------*/ - if (((itflag & SPI_FLAG_TXE) != RESET) && ((itsource & SPI_IT_TXE) != RESET)) - { - hspi->TxISR(hspi); - return; - } - - /* SPI in Error Treatment --------------------------------------------------*/ - if (((itflag & (SPI_FLAG_MODF | SPI_FLAG_OVR | SPI_FLAG_FRE)) != RESET) && ((itsource & SPI_IT_ERR) != RESET)) - { - /* SPI Overrun error interrupt occurred ----------------------------------*/ - if ((itflag & SPI_FLAG_OVR) != RESET) - { - if (hspi->State != HAL_SPI_STATE_BUSY_TX) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_OVR); - __HAL_SPI_CLEAR_OVRFLAG(hspi); - } - else - { - __HAL_SPI_CLEAR_OVRFLAG(hspi); - return; - } - } - - /* SPI Mode Fault error interrupt occurred -------------------------------*/ - if ((itflag & SPI_FLAG_MODF) != RESET) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_MODF); - __HAL_SPI_CLEAR_MODFFLAG(hspi); - } - - /* SPI Frame error interrupt occurred ------------------------------------*/ - if ((itflag & SPI_FLAG_FRE) != RESET) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FRE); - __HAL_SPI_CLEAR_FREFLAG(hspi); - } - - if (hspi->ErrorCode != HAL_SPI_ERROR_NONE) - { - /* Disable all interrupts */ - __HAL_SPI_DISABLE_IT(hspi, SPI_IT_RXNE | SPI_IT_TXE | SPI_IT_ERR); - - hspi->State = HAL_SPI_STATE_READY; - /* Disable the SPI DMA requests if enabled */ - if ((HAL_IS_BIT_SET(itsource, SPI_CR2_TXDMAEN)) || (HAL_IS_BIT_SET(itsource, SPI_CR2_RXDMAEN))) - { - CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN)); - - /* Abort the SPI DMA Rx channel */ - if (hspi->hdmarx != NULL) - { - /* Set the SPI DMA Abort callback : - will lead to call HAL_SPI_ErrorCallback() at end of DMA abort procedure */ - hspi->hdmarx->XferAbortCallback = SPI_DMAAbortOnError; - HAL_DMA_Abort_IT(hspi->hdmarx); - } - /* Abort the SPI DMA Tx channel */ - if (hspi->hdmatx != NULL) - { - /* Set the SPI DMA Abort callback : - will lead to call HAL_SPI_ErrorCallback() at end of DMA abort procedure */ - hspi->hdmatx->XferAbortCallback = SPI_DMAAbortOnError; - HAL_DMA_Abort_IT(hspi->hdmatx); - } - } - else - { - /* Call user error callback */ - 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) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(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 callback. - * @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) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(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) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(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) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(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) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(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) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(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) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(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 - */ -} - -/** - * @brief SPI Abort Complete callback. - * @param hspi SPI handle. - * @retval None - */ -__weak void HAL_SPI_AbortCpltCallback(SPI_HandleTypeDef *hspi) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(hspi); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_SPI_AbortCpltCallback can be implemented in the user file. - */ -} - -/** - * @} - */ - -/** @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 handle 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 SPI handle state */ - 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 SPI ErrorCode */ - return hspi->ErrorCode; -} - -/** - * @} - */ - -/** - * @} - */ - -/** @addtogroup SPI_Private_Functions - * @brief 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; - uint32_t tickstart = 0U; - - /* Init tickstart for timeout managment*/ - tickstart = HAL_GetTick(); - - /* DMA Normal Mode */ - if ((hdma->Instance->CCR & DMA_CCR_CIRC) != DMA_CCR_CIRC) - { - /* Disable ERR interrupt */ - __HAL_SPI_DISABLE_IT(hspi, SPI_IT_ERR); - - /* Disable Tx DMA Request */ - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN); - - /* Check the end of the transaction */ - if (SPI_EndRxTxTransaction(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 data is not read */ - if (hspi->Init.Direction == SPI_DIRECTION_2LINES) - { - __HAL_SPI_CLEAR_OVRFLAG(hspi); - } - - hspi->TxXferCount = 0U; - 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) -{ - SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; - uint32_t tickstart = 0U; -#if (USE_SPI_CRC != 0U) - __IO uint16_t tmpreg = 0U; -#endif /* USE_SPI_CRC */ - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - /* DMA Normal Mode */ - if ((hdma->Instance->CCR & DMA_CCR_CIRC) != DMA_CCR_CIRC) - { - /* Disable ERR interrupt */ - __HAL_SPI_DISABLE_IT(hspi, SPI_IT_ERR); - -#if (USE_SPI_CRC != 0U) - /* CRC handling */ - if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - /* Wait until RXNE flag */ - if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SPI_FLAG_RXNE, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK) - { - /* Error on the CRC reception */ - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); - } - /* Read CRC */ - if (hspi->Init.DataSize > SPI_DATASIZE_8BIT) - { - tmpreg = hspi->Instance->DR; - /* To avoid GCC warning */ - UNUSED(tmpreg); - } - else - { - tmpreg = *(__IO uint8_t *)&hspi->Instance->DR; - /* To avoid GCC warning */ - UNUSED(tmpreg); - - if (hspi->Init.CRCLength == SPI_CRC_LENGTH_16BIT) - { - if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SPI_FLAG_RXNE, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK) - { - /* Error on the CRC reception */ - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); - } - tmpreg = *(__IO uint8_t *)&hspi->Instance->DR; - /* To avoid GCC warning */ - UNUSED(tmpreg); - } - } - } -#endif /* USE_SPI_CRC */ - - /* Disable Rx/Tx DMA Request (done by default to handle the case master rx direction 2 lines) */ - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN); - - /* Check the end of the transaction */ - if (SPI_EndRxTransaction(hspi, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_FLAG; - } - - hspi->RxXferCount = 0U; - 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)) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); - __HAL_SPI_CLEAR_CRCERRFLAG(hspi); - } -#endif /* USE_SPI_CRC */ - - if (hspi->ErrorCode != HAL_SPI_ERROR_NONE) - { - HAL_SPI_ErrorCallback(hspi); - return; - } - } - 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) -{ - SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; - uint32_t tickstart = 0U; -#if (USE_SPI_CRC != 0U) - __IO int16_t tmpreg = 0U; -#endif /* USE_SPI_CRC */ - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - /* DMA Normal Mode */ - if ((hdma->Instance->CCR & DMA_CCR_CIRC) != DMA_CCR_CIRC) - { - /* Disable ERR interrupt */ - __HAL_SPI_DISABLE_IT(hspi, SPI_IT_ERR); - -#if (USE_SPI_CRC != 0U) - /* 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, - tickstart) != HAL_OK) - { - /* Error on the CRC reception */ - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); - } - /* Read CRC to Flush DR and RXNE flag */ - tmpreg = *(__IO uint8_t *)&hspi->Instance->DR; - /* To avoid GCC warning */ - UNUSED(tmpreg); - } - else - { - if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_HALF_FULL, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK) - { - /* Error on the CRC reception */ - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); - } - /* Read CRC to Flush DR and RXNE flag */ - tmpreg = hspi->Instance->DR; - /* To avoid GCC warning */ - UNUSED(tmpreg); - } - } -#endif /* USE_SPI_CRC */ - - /* Check the end of the transaction */ - if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); - } - - /* Disable Rx/Tx DMA Request */ - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN); - - hspi->TxXferCount = 0U; - hspi->RxXferCount = 0U; - 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)) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); - __HAL_SPI_CLEAR_CRCERRFLAG(hspi); - } -#endif /* USE_SPI_CRC */ - - if (hspi->ErrorCode != HAL_SPI_ERROR_NONE) - { - HAL_SPI_ErrorCallback(hspi); - return; - } - } - HAL_SPI_TxRxCpltCallback(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); - - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_DMA); - hspi->State = HAL_SPI_STATE_READY; - HAL_SPI_ErrorCallback(hspi); -} - -/** - * @brief DMA SPI communication abort callback, when initiated by HAL services on Error - * (To be called at end of DMA Abort procedure following error occurrence). - * @param hdma DMA handle. - * @retval None - */ -static void SPI_DMAAbortOnError(DMA_HandleTypeDef *hdma) -{ - SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; - hspi->RxXferCount = 0U; - hspi->TxXferCount = 0U; - - HAL_SPI_ErrorCallback(hspi); -} - -/** - * @brief DMA SPI Tx communication abort callback, when initiated by user - * (To be called at end of DMA Tx Abort procedure following user abort request). - * @note When this callback is executed, User Abort complete call back is called only if no - * Abort still ongoing for Rx DMA Handle. - * @param hdma DMA handle. - * @retval None - */ -static void SPI_DMATxAbortCallback(DMA_HandleTypeDef *hdma) -{ - SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; - - hspi->hdmatx->XferAbortCallback = NULL; - - /* Disable Tx DMA Request */ - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN); - - if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - - /* Disable SPI Peripheral */ - __HAL_SPI_DISABLE(hspi); - - /* Empty the FRLVL fifo */ - if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - - /* Check if an Abort process is still ongoing */ - if (hspi->hdmarx != NULL) - { - if (hspi->hdmarx->XferAbortCallback != NULL) - { - return; - } - } - - /* No Abort process still ongoing : All DMA Stream/Channel are aborted, call user Abort Complete callback */ - hspi->RxXferCount = 0U; - hspi->TxXferCount = 0U; - - /* Check no error during Abort procedure */ - if (hspi->ErrorCode != HAL_SPI_ERROR_ABORT) - { - /* Reset errorCode */ - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - } - - /* Clear the Error flags in the SR register */ - __HAL_SPI_CLEAR_OVRFLAG(hspi); - __HAL_SPI_CLEAR_FREFLAG(hspi); - - /* Restore hspi->State to Ready */ - hspi->State = HAL_SPI_STATE_READY; - - /* Call user Abort complete callback */ - HAL_SPI_AbortCpltCallback(hspi); -} - -/** - * @brief DMA SPI Rx communication abort callback, when initiated by user - * (To be called at end of DMA Rx Abort procedure following user abort request). - * @note When this callback is executed, User Abort complete call back is called only if no - * Abort still ongoing for Tx DMA Handle. - * @param hdma DMA handle. - * @retval None - */ -static void SPI_DMARxAbortCallback(DMA_HandleTypeDef *hdma) -{ - SPI_HandleTypeDef *hspi = (SPI_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; - - /* Disable SPI Peripheral */ - __HAL_SPI_DISABLE(hspi); - - hspi->hdmarx->XferAbortCallback = NULL; - - /* Disable Rx DMA Request */ - CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_RXDMAEN); - - /* Control the BSY flag */ - if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_BSY, RESET, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - - /* Empty the FRLVL fifo */ - if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - - /* Check if an Abort process is still ongoing */ - if (hspi->hdmatx != NULL) - { - if (hspi->hdmatx->XferAbortCallback != NULL) - { - return; - } - } - - /* No Abort process still ongoing : All DMA Stream/Channel are aborted, call user Abort Complete callback */ - hspi->RxXferCount = 0U; - hspi->TxXferCount = 0U; - - /* Check no error during Abort procedure */ - if (hspi->ErrorCode != HAL_SPI_ERROR_ABORT) - { - /* Reset errorCode */ - hspi->ErrorCode = HAL_SPI_ERROR_NONE; - } - - /* Clear the Error flags in the SR register */ - __HAL_SPI_CLEAR_OVRFLAG(hspi); - __HAL_SPI_CLEAR_FREFLAG(hspi); - - /* Restore hspi->State to Ready */ - hspi->State = HAL_SPI_STATE_READY; - - /* Call user Abort complete callback */ - HAL_SPI_AbortCpltCallback(hspi); -} - -/** - * @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 packing mode */ - if (hspi->RxXferCount > 1U) - { - *((uint16_t *)hspi->pRxBuffPtr) = hspi->Instance->DR; - hspi->pRxBuffPtr += sizeof(uint16_t); - hspi->RxXferCount -= 2U; - if (hspi->RxXferCount == 1U) - { - /* set fiforxthresold 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 == 0U) - { -#if (USE_SPI_CRC != 0U) - if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - SET_BIT(hspi->Instance->CR2, SPI_RXFIFO_THRESHOLD); - hspi->RxISR = SPI_2linesRxISR_8BITCRC; - return; - } -#endif /* USE_SPI_CRC */ - - /* Disable RXNE and ERR 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); - - hspi->CRCSize--; - - /* check end of the reception */ - if (hspi->CRCSize == 0U) - { - /* Disable RXNE and ERR 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) -{ - /* Transmit data in packing Bit mode */ - if (hspi->TxXferCount >= 2U) - { - hspi->Instance->DR = *((uint16_t *)hspi->pTxBuffPtr); - hspi->pTxBuffPtr += sizeof(uint16_t); - hspi->TxXferCount -= 2U; - } - /* 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 == 0U) - { -#if (USE_SPI_CRC != 0U) - if (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) - { - /* Set CRC Next Bit to send CRC */ - SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); - /* Disable TXE interrupt */ - __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 CRC Next Bit to send CRC */ - SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); - /* Disable TXE interrupt */ - __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); - - hspi->CRCSize--; - - if (hspi->CRCSize == 0U) - { - 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 */ - 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 */ - 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 ((__HAL_SPI_GET_FLAG(hspi, Flag) ? SET : RESET) != 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 SPI FIFO 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 - * @param Tickstart tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef SPI_WaitFifoStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Fifo, uint32_t State, - uint32_t Timeout, uint32_t Tickstart) -{ - __IO uint8_t tmpreg; - - while ((hspi->Instance->SR & Fifo) != State) - { - if ((Fifo == SPI_SR_FRLVL) && (State == SPI_FRLVL_EMPTY)) - { - tmpreg = *((__IO uint8_t *)&hspi->Instance->DR); - /* To avoid GCC warning */ - UNUSED(tmpreg); - } - - 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 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 - * @param Tickstart tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef SPI_EndRxTransaction(SPI_HandleTypeDef *hspi, uint32_t Timeout, uint32_t Tickstart) -{ - 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); - } - - /* 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; - } - - if ((hspi->Init.Mode == SPI_MODE_MASTER) && ((hspi->Init.Direction == SPI_DIRECTION_1LINE) - || (hspi->Init.Direction == SPI_DIRECTION_2LINES_RXONLY))) - { - /* Empty the FRLVL fifo */ - if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, Timeout, Tickstart) != HAL_OK) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); - return HAL_TIMEOUT; - } - } - return HAL_OK; -} - -/** - * @brief Handle the check of the RXTX or TX transaction complete. - * @param hspi SPI handle - * @param Timeout Timeout duration - * @param Tickstart tick start value - * @retval HAL status - */ -static HAL_StatusTypeDef SPI_EndRxTxTransaction(SPI_HandleTypeDef *hspi, uint32_t Timeout, uint32_t Tickstart) -{ - /* Control if the TX fifo is empty */ - if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FTLVL, SPI_FTLVL_EMPTY, Timeout, Tickstart) != HAL_OK) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); - return HAL_TIMEOUT; - } - - /* 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; - } - - /* Control if the RX fifo is empty */ - if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, 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; - - /* Init tickstart for timeout managment*/ - tickstart = HAL_GetTick(); - - /* Disable ERR interrupt */ - __HAL_SPI_DISABLE_IT(hspi, SPI_IT_ERR); - - /* Check the end of the transaction */ - if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); - } - -#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 (SPI_EndRxTransaction(hspi, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); - } - 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; - - /* Init tickstart for timeout management*/ - tickstart = HAL_GetTick(); - - /* Disable TXE and ERR interrupt */ - __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_ERR)); - - /* Check the end of the transaction */ - if (SPI_EndRxTxTransaction(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); - } -} - -/** - * @brief Handle abort a Rx transaction. - * @param hspi pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @retval None - */ -static void SPI_AbortRx_ISR(SPI_HandleTypeDef *hspi) -{ - __IO uint32_t count; - - /* Disable SPI Peripheral */ - __HAL_SPI_DISABLE(hspi); - - count = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U); - - /* Disable TXEIE, RXNEIE and ERRIE(mode fault event, overrun error, TI frame error) interrupts */ - CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_TXEIE | SPI_CR2_RXNEIE | SPI_CR2_ERRIE)); - - /* Check RXNEIE is disabled */ - do - { - if (count-- == 0U) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT); - break; - } - } - while (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXNEIE)); - - /* Control the BSY flag */ - if (SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_BSY, RESET, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - - /* Empty the FRLVL fifo */ - if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - - hspi->State = HAL_SPI_STATE_ABORT; -} - -/** - * @brief Handle abort a Tx or Rx/Tx transaction. - * @param hspi pointer to a SPI_HandleTypeDef structure that contains - * the configuration information for SPI module. - * @retval None - */ -static void SPI_AbortTx_ISR(SPI_HandleTypeDef *hspi) -{ - __IO uint32_t count; - - count = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U); - - /* Disable TXEIE, RXNEIE and ERRIE(mode fault event, overrun error, TI frame error) interrupts */ - CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_TXEIE | SPI_CR2_RXNEIE | SPI_CR2_ERRIE)); - - /* Check TXEIE is disabled */ - do - { - if (count-- == 0U) - { - SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_ABORT); - break; - } - } - while (HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_TXEIE)); - - if (SPI_EndRxTxTransaction(hspi, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - - /* Disable SPI Peripheral */ - __HAL_SPI_DISABLE(hspi); - - /* Empty the FRLVL fifo */ - if (SPI_WaitFifoStateUntilTimeout(hspi, SPI_FLAG_FRLVL, SPI_FRLVL_EMPTY, SPI_DEFAULT_TIMEOUT, HAL_GetTick()) != HAL_OK) - { - hspi->ErrorCode = HAL_SPI_ERROR_ABORT; - } - - hspi->State = HAL_SPI_STATE_ABORT; -} - -/** - * @} - */ - -#endif /* HAL_SPI_MODULE_ENABLED */ - -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |