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Diff: targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_hal_spi.c
- Revision:
- 0:13413ea9a877
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_hal_spi.c Sun Jun 12 14:02:44 2022 +0000 @@ -0,0 +1,3261 @@ +/** + ****************************************************************************** + * @file stm32f4xx_hal_spi.c + * @author MCD Application Team + * @version V1.7.1 + * @date 14-April-2017 + * @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 + (+++) Enable the DMAx clock + (+++) Configure the DMA handle parameters + (+++) Configure the DMA Tx or Rx stream + (+++) 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 + + (#) 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() + + @endverbatim + + Using the HAL it is not possible to reach all supported SPI frequency with the differents SPI Modes, + the following tables resume the max SPI frequency reached with data size 8bits/16bits, + according to frequency used on APBx Peripheral Clock (fPCLK) used by the SPI instance : + + DataSize = SPI_DATASIZE_8BIT: + +----------------------------------------------------------------------------------------------+ + | | | 2Lines Fullduplex | 2Lines RxOnly | 1Line | + | Process | Tranfert mode |---------------------|----------------------|----------------------| + | | | Master | Slave | Master | Slave | Master | Slave | + |==============================================================================================| + | T | Polling | Fpclk/2 | Fpclk/2 | NA | NA | NA | NA | + | X |----------------|----------|----------|-----------|----------|-----------|----------| + | / | Interrupt | Fpclk/4 | Fpclk/8 | NA | NA | NA | NA | + | R |----------------|----------|----------|-----------|----------|-----------|----------| + | X | DMA | Fpclk/2 | Fpclk/2 | NA | NA | NA | NA | + |=========|================|==========|==========|===========|==========|===========|==========| + | | Polling | Fpclk/2 | Fpclk/2 | Fpclk/64 | Fpclk/2 | Fpclk/64 | Fpclk/2 | + | |----------------|----------|----------|-----------|----------|-----------|----------| + | R | Interrupt | Fpclk/8 | Fpclk/8 | Fpclk/64 | Fpclk/2 | Fpclk/64 | Fpclk/2 | + | X |----------------|----------|----------|-----------|----------|-----------|----------| + | | DMA | Fpclk/2 | Fpclk/2 | Fpclk/64 | Fpclk/2 | Fpclk/128 | Fpclk/2 | + |=========|================|==========|==========|===========|==========|===========|==========| + | | Polling | Fpclk/2 | Fpclk/4 | NA | NA | Fpclk/2 | Fpclk/64 | + | |----------------|----------|----------|-----------|----------|-----------|----------| + | T | Interrupt | Fpclk/2 | Fpclk/4 | NA | NA | Fpclk/2 | Fpclk/64 | + | X |----------------|----------|----------|-----------|----------|-----------|----------| + | | DMA | Fpclk/2 | Fpclk/2 | NA | NA | Fpclk/2 | Fpclk/128| + +----------------------------------------------------------------------------------------------+ + + DataSize = SPI_DATASIZE_16BIT: + +----------------------------------------------------------------------------------------------+ + | | | 2Lines Fullduplex | 2Lines RxOnly | 1Line | + | Process | Tranfert mode |---------------------|----------------------|----------------------| + | | | Master | Slave | Master | Slave | Master | Slave | + |==============================================================================================| + | T | Polling | Fpclk/2 | Fpclk/2 | NA | NA | NA | NA | + | X |----------------|----------|----------|-----------|----------|-----------|----------| + | / | Interrupt | Fpclk/4 | Fpclk/4 | NA | NA | NA | NA | + | R |----------------|----------|----------|-----------|----------|-----------|----------| + | X | DMA | Fpclk/2 | Fpclk/2 | NA | NA | NA | NA | + |=========|================|==========|==========|===========|==========|===========|==========| + | | Polling | Fpclk/2 | Fpclk/2 | Fpclk/64 | Fpclk/2 | Fpclk/32 | Fpclk/2 | + | |----------------|----------|----------|-----------|----------|-----------|----------| + | R | Interrupt | Fpclk/4 | Fpclk/4 | Fpclk/64 | Fpclk/2 | Fpclk/64 | Fpclk/2 | + | X |----------------|----------|----------|-----------|----------|-----------|----------| + | | DMA | Fpclk/2 | Fpclk/2 | Fpclk/64 | Fpclk/2 | Fpclk/128 | Fpclk/2 | + |=========|================|==========|==========|===========|==========|===========|==========| + | | Polling | Fpclk/2 | Fpclk/2 | NA | NA | Fpclk/2 | Fpclk/32 | + | |----------------|----------|----------|-----------|----------|-----------|----------| + | T | Interrupt | Fpclk/2 | Fpclk/2 | NA | NA | Fpclk/2 | Fpclk/64 | + | X |----------------|----------|----------|-----------|----------|-----------|----------| + | | DMA | Fpclk/2 | Fpclk/2 | NA | NA | Fpclk/2 | Fpclk/128| + +----------------------------------------------------------------------------------------------+ + [..] + (@) The max SPI frequency depend on SPI data size (8bits, 16bits), + SPI mode(2 Lines fullduplex, 2 lines RxOnly, 1 line TX/RX) and Process mode (Polling, IT, DMA). + (@) + (+@) 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) 2017 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 "stm32f4xx_hal.h" + +/** @addtogroup STM32F4xx_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 -----------------------------------------------*/ +/** @addtogroup SPI_Private_Functions + * @{ + */ +static void SPI_DMATransmitCplt(DMA_HandleTypeDef *hdma); +static void SPI_DMAReceiveCplt(DMA_HandleTypeDef *hdma); +static void SPI_DMATransmitReceiveCplt(DMA_HandleTypeDef *hdma); +static void SPI_DMAHalfTransmitCplt(DMA_HandleTypeDef *hdma); +static void SPI_DMAHalfReceiveCplt(DMA_HandleTypeDef *hdma); +static void SPI_DMAHalfTransmitReceiveCplt(DMA_HandleTypeDef *hdma); +static void SPI_DMAError(DMA_HandleTypeDef *hdma); +static 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_WaitTXEFlagStateUntilTimeout(SPI_HandleTypeDef *hspi, 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_CheckFlag_BSY(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 + + (+) 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) +{ + /* 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_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)); + } +#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); + + /*----------------------- SPIx CR1 & CR2 Configuration ---------------------*/ + /* Configure : SPI Mode, Communication Mode, Data size, 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.DataSize | + hspi->Init.CLKPolarity | hspi->Init.CLKPhase | (hspi->Init.NSS & SPI_CR1_SSM) | + hspi->Init.BaudRatePrescaler | hspi->Init.FirstBit | hspi->Init.CRCCalculation) ); + + /* Configure : NSS management */ + WRITE_REG(hspi->Instance->CR2, (((hspi->Init.NSS >> 16U) & SPI_CR2_SSOE) | hspi->Init.TIMode)); + +#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 /* USE_SPI_CRC */ + + 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; + + /* 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 == 0)) + { + 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_16BIT) + { + if((hspi->Init.Mode == SPI_MODE_SLAVE) || (hspi->TxXferCount == 0x01)) + { + 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 == 0x01)) + { + *((__IO uint8_t*)&hspi->Instance->DR) = (*pData); + pData += sizeof(uint8_t); + hspi->TxXferCount--; + } + while (hspi->TxXferCount > 0U) + { + /* Wait until TXE flag is set to send data */ + if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_TXE)) + { + *((__IO uint8_t*)&hspi->Instance->DR) = (*pData); + pData += sizeof(uint8_t); + hspi->TxXferCount--; + } + else + { + /* Timeout management */ + if((Timeout == 0U) || ((Timeout != HAL_MAX_DELAY) && ((HAL_GetTick()-tickstart) >= Timeout))) + { + errorcode = HAL_TIMEOUT; + goto error; + } + } + } + } + + /* Wait until TXE flag */ + if(SPI_WaitTXEFlagStateUntilTimeout(hspi, Timeout, tickstart) != HAL_OK) + { + errorcode = HAL_TIMEOUT; + goto error; + } + + /* Check Busy flag */ + if(SPI_CheckFlag_BSY(hspi, Timeout, tickstart) != HAL_OK) + { + errorcode = HAL_ERROR; + hspi->ErrorCode = HAL_SPI_ERROR_FLAG; + goto error; + } + + /* Clear overrun flag in 2 Lines communication mode because received is not read */ + if(hspi->Init.Direction == SPI_DIRECTION_2LINES) + { + __HAL_SPI_CLEAR_OVRFLAG(hspi); + } +#if (USE_SPI_CRC != 0U) + /* Enable CRC Transmission */ + if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + } +#endif /* USE_SPI_CRC */ + + 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.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 == 0)) + { + 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 */ + + /* 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_16BIT) + { + *((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 */ + tmpreg = hspi->Instance->DR; + /* To avoid GCC warning */ + UNUSED(tmpreg); + } +#endif /* USE_SPI_CRC */ + + /* Check the end of the transaction */ + if((hspi->Init.Mode == SPI_MODE_MASTER)&&((hspi->Init.Direction == SPI_DIRECTION_1LINE)||(hspi->Init.Direction == SPI_DIRECTION_2LINES_RXONLY))) + { + /* Disable SPI peripheral */ + __HAL_SPI_DISABLE(hspi); + } + +#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 tmpreg1 = 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; + + /* 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 == 0)) + { + errorcode = HAL_ERROR; + goto error; + } + + /* Don't overwrite in case of HAL_SPI_STATE_BUSY_RX */ + if(hspi->State == HAL_SPI_STATE_READY) + { + 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 */ + + /* 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_16BIT) + { + 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_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)) + { + *((__IO uint8_t*)&hspi->Instance->DR) = (*pTxData); + pTxData += sizeof(uint8_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))) + { + *(__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_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))) + { + (*(uint8_t *)pRxData++) = 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 */ + tmpreg1 = hspi->Instance->DR; + /* To avoid GCC warning */ + UNUSED(tmpreg1); + } + + /* 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 */ + + /* Wait until TXE flag */ + if(SPI_WaitTXEFlagStateUntilTimeout(hspi, Timeout, tickstart) != HAL_OK) + { + errorcode = HAL_TIMEOUT; + goto error; + } + + /* Check Busy flag */ + if(SPI_CheckFlag_BSY(hspi, Timeout, tickstart) != HAL_OK) + { + errorcode = HAL_ERROR; + hspi->ErrorCode = HAL_SPI_ERROR_FLAG; + goto error; + } + + /* 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); + } + +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; + + /* Check Direction parameter */ + assert_param(IS_SPI_DIRECTION_2LINES_OR_1LINE(hspi->Init.Direction)); + + /* Process Locked */ + __HAL_LOCK(hspi); + + if((pData == NULL) || (Size == 0)) + { + 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 */ + + if (hspi->Init.Direction == SPI_DIRECTION_2LINES) + { + /* Enable TXE interrupt */ + __HAL_SPI_ENABLE_IT(hspi, (SPI_IT_TXE)); + } + else + { + /* 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.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 == 0)) + { + 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; + + /* Set the function for IT treatment */ + if(hspi->Init.DataSize > SPI_DATASIZE_8BIT ) + { + hspi->RxISR = SPI_RxISR_16BIT; + } + else + { + 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) + { + SPI_RESET_CRC(hspi); + } +#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; + + /* 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 == 0)) + { + errorcode = HAL_ERROR; + goto error; + } + + /* Don't overwrite in case of HAL_SPI_STATE_BUSY_RX */ + if(hspi->State == HAL_SPI_STATE_READY) + { + 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) + { + SPI_RESET_CRC(hspi); + } +#endif /* USE_SPI_CRC */ + + /* 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 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 == 0)) + { + 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; + + /* Enable the Tx DMA Stream */ + 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 */ + SET_BIT(hspi->Instance->CR2, SPI_CR2_ERRIE); + + /* 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. + * @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; + + 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_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 == 0)) + { + 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 */ + + /* 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 */ + 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 */ + SET_BIT(hspi->Instance->CR2, SPI_CR2_ERRIE); + + /* 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 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 == 0)) + { + errorcode = HAL_ERROR; + goto error; + } + + /* Don't overwrite in case of HAL_SPI_STATE_BUSY_RX */ + if(hspi->State == HAL_SPI_STATE_READY) + { + 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 */ + + /* 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 */ + 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 */ + 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 */ + SET_BIT(hspi->Instance->CR2, SPI_CR2_ERRIE); + + /* 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. + * @note Once transfer is aborted, the __HAL_SPI_CLEAR_OVRFLAG() macro must be called in user application + * before starting new SPI receive process. + * @retval HAL status +*/ +HAL_StatusTypeDef HAL_SPI_Abort(SPI_HandleTypeDef *hspi) +{ + __IO uint32_t count = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U); + + /* 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; + } + + if(HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXNEIE)) + { + hspi->RxISR = SPI_AbortRx_ISR; + } + + /* 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 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 */ + HAL_DMA_Abort(hspi->hdmatx); + + /* Disable Tx DMA Request */ + CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_TXDMAEN)); + + /* Wait until TXE flag is set */ + do + { + if(count-- == 0U) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + break; + } + } + while((hspi->Instance->SR & SPI_FLAG_TXE) == RESET); + } + /* Abort the SPI DMA Rx 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 */ + HAL_DMA_Abort(hspi->hdmarx); + + /* Disable peripheral */ + __HAL_SPI_DISABLE(hspi); + + /* Disable Rx DMA Request */ + CLEAR_BIT(hspi->Instance->CR2, (SPI_CR2_RXDMAEN)); + + } + } + /* Reset Tx and Rx transfer counters */ + hspi->RxXferCount = 0U; + hspi->TxXferCount = 0U; + + /* 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 HAL_OK; +} + +/** + * @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). + * @note Once transfer is aborted, the __HAL_SPI_CLEAR_OVRFLAG() macro must be called in user application + * before starting new SPI receive process. + * @retval HAL status +*/ +HAL_StatusTypeDef HAL_SPI_Abort_IT(SPI_HandleTypeDef *hspi) +{ + uint32_t abortcplt; + + /* 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; + } + + if(HAL_IS_BIT_SET(hspi->Instance->CR2, SPI_CR2_RXNEIE)) + { + hspi->RxISR = SPI_AbortRx_ISR; + } + + /* Clear ERRIE interrupts in case of DMA Mode */ + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_ERRIE); + + abortcplt = 1U; + + /* 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 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; + } + else + { + abortcplt = 0U; + } + } + /* Abort the SPI DMA Rx 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; + 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 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; + } + 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 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; + } + else + { + abortcplt = 0U; + } + } + } + + if(abortcplt == 1U) + { + /* Reset Tx and Rx transfer counters */ + hspi->RxXferCount = 0U; + hspi->TxXferCount = 0U; + + /* 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 HAL_OK; +} + +/** + * @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 */ + if(hspi->hdmatx != NULL) + { + HAL_DMA_Abort(hspi->hdmatx); + } + /* Abort the SPI DMA rx Stream */ + if(hspi->hdmarx != NULL) + { + HAL_DMA_Abort(hspi->hdmarx); + } + + /* Disable the SPI DMA Tx & Rx requests */ + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN | SPI_CR2_RXDMAEN); + hspi->State = HAL_SPI_STATE_READY; + return HAL_OK; +} + +/** + * @brief 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->CR & DMA_SxCR_CIRC) == 0U) + { + /* Disable Tx DMA Request */ + CLEAR_BIT(hspi->Instance->CR2, SPI_CR2_TXDMAEN); + + /* Check the end of the transaction */ + if(SPI_CheckFlag_BSY(hspi, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + } + + /* Clear overrun flag in 2 Lines communication mode because received 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; +#if (USE_SPI_CRC != 0U) + uint32_t tickstart = 0U; + __IO uint16_t tmpreg = 0U; + + /* Init tickstart for timeout management*/ + tickstart = HAL_GetTick(); +#endif /* USE_SPI_CRC */ + + if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0U) + { +#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 */ + tmpreg = 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((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); + } + + 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(); + + if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0U) + { +#if (USE_SPI_CRC != 0U) + /* CRC handling */ + if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + /* Wait the CRC data */ + if(SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_RXNE, SET, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK) + { + 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_CheckFlag_BSY(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) +{ + __IO uint32_t count = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U); + 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 ); + + /* Wait until TXE flag is set */ + do + { + if(count-- == 0U) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + break; + } + } + while((hspi->Instance->SR & SPI_FLAG_TXE) == RESET); + + /* 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 channels are aborted, call user Abort Complete callback */ + hspi->RxXferCount = 0U; + hspi->TxXferCount = 0U; + + /* Reset errorCode */ + hspi->ErrorCode = HAL_SPI_ERROR_NONE; + + /* Clear the Error flags in the SR register */ + __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); + + /* 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 channels are aborted, call user Abort Complete callback */ + hspi->RxXferCount = 0U; + hspi->TxXferCount = 0U; + + /* 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 8bit mode */ + *hspi->pRxBuffPtr++ = *((__IO uint8_t *)&hspi->Instance->DR); + hspi->RxXferCount--; + + /* check end of the reception */ + if(hspi->RxXferCount == 0U) + { +#if (USE_SPI_CRC != 0U) + if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + hspi->RxISR = SPI_2linesRxISR_8BITCRC; + return; + } +#endif /* USE_SPI_CRC */ + + /* Disable RXNE interrupt */ + __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR)); + + if(hspi->TxXferCount == 0U) + { + SPI_CloseRxTx_ISR(hspi); + } + } +} + +#if (USE_SPI_CRC != 0U) +/** + * @brief Rx 8-bit handler for Transmit and Receive in Interrupt mode. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_2linesRxISR_8BITCRC(struct __SPI_HandleTypeDef *hspi) +{ + __IO uint8_t tmpreg = 0U; + + /* Read data register to flush CRC */ + tmpreg = *((__IO uint8_t *)&hspi->Instance->DR); + + /* To avoid GCC warning */ + + UNUSED(tmpreg); + + /* Disable RXNE interrupt */ + __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR)); + + if(hspi->TxXferCount == 0U) + { + SPI_CloseRxTx_ISR(hspi); + } +} +#endif /* USE_SPI_CRC */ + +/** + * @brief Tx 8-bit handler for Transmit and Receive in Interrupt mode. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_2linesTxISR_8BIT(struct __SPI_HandleTypeDef *hspi) +{ + *(__IO uint8_t *)&hspi->Instance->DR = (*hspi->pTxBuffPtr++); + hspi->TxXferCount--; + + /* check the end of the transmission */ + if(hspi->TxXferCount == 0U) + { +#if (USE_SPI_CRC != 0U) + if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE); + return; + } +#endif /* USE_SPI_CRC */ + + /* Disable TXE interrupt */ + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE); + + if(hspi->RxXferCount == 0U) + { + SPI_CloseRxTx_ISR(hspi); + } + } +} + +/** + * @brief Rx 16-bit handler for Transmit and Receive in Interrupt mode. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_2linesRxISR_16BIT(struct __SPI_HandleTypeDef *hspi) +{ + /* Receive data in 16 Bit mode */ + *((uint16_t*)hspi->pRxBuffPtr) = hspi->Instance->DR; + hspi->pRxBuffPtr += sizeof(uint16_t); + hspi->RxXferCount--; + + if(hspi->RxXferCount == 0U) + { +#if (USE_SPI_CRC != 0U) + if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + hspi->RxISR = SPI_2linesRxISR_16BITCRC; + return; + } +#endif /* USE_SPI_CRC */ + + /* Disable RXNE interrupt */ + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_RXNE); + + if(hspi->TxXferCount == 0U) + { + SPI_CloseRxTx_ISR(hspi); + } + } +} + +#if (USE_SPI_CRC != 0U) +/** + * @brief Manage the CRC 16-bit receive for Transmit and Receive in Interrupt mode. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_2linesRxISR_16BITCRC(struct __SPI_HandleTypeDef *hspi) +{ + /* Receive data in 16 Bit mode */ + __IO uint16_t tmpreg = 0U; + + /* Read data register to flush CRC */ + tmpreg = hspi->Instance->DR; + + /* To avoid GCC warning */ + UNUSED(tmpreg); + + /* Disable RXNE interrupt */ + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_RXNE); + + SPI_CloseRxTx_ISR(hspi); +} +#endif /* USE_SPI_CRC */ + +/** + * @brief Tx 16-bit handler for Transmit and Receive in Interrupt mode. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_2linesTxISR_16BIT(struct __SPI_HandleTypeDef *hspi) +{ + /* Transmit data in 16 Bit mode */ + hspi->Instance->DR = *((uint16_t *)hspi->pTxBuffPtr); + hspi->pTxBuffPtr += sizeof(uint16_t); + hspi->TxXferCount--; + + /* Enable CRC Transmission */ + if(hspi->TxXferCount == 0U) + { +#if (USE_SPI_CRC != 0U) + if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE); + return; + } +#endif /* USE_SPI_CRC */ + + /* Disable TXE interrupt */ + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_TXE); + + if(hspi->RxXferCount == 0U) + { + SPI_CloseRxTx_ISR(hspi); + } + } +} + +#if (USE_SPI_CRC != 0U) +/** + * @brief Manage the CRC 8-bit receive in Interrupt context. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_RxISR_8BITCRC(struct __SPI_HandleTypeDef *hspi) +{ + __IO uint8_t tmpreg = 0U; + + /* Read data register to flush CRC */ + tmpreg = *((__IO uint8_t*)&hspi->Instance->DR); + + /* To avoid GCC warning */ + UNUSED(tmpreg); + + SPI_CloseRx_ISR(hspi); +} +#endif /* USE_SPI_CRC */ + +/** + * @brief Manage the receive 8-bit in Interrupt context. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_RxISR_8BIT(struct __SPI_HandleTypeDef *hspi) +{ + *hspi->pRxBuffPtr++ = (*(__IO uint8_t *)&hspi->Instance->DR); + hspi->RxXferCount--; + +#if (USE_SPI_CRC != 0U) + /* Enable CRC Transmission */ + if((hspi->RxXferCount == 1U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)) + { + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + } +#endif /* USE_SPI_CRC */ + + if(hspi->RxXferCount == 0U) + { +#if (USE_SPI_CRC != 0U) + if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + hspi->RxISR = SPI_RxISR_8BITCRC; + return; + } +#endif /* USE_SPI_CRC */ + SPI_CloseRx_ISR(hspi); + } +} + +#if (USE_SPI_CRC != 0U) +/** + * @brief Manage the CRC 16-bit receive in Interrupt context. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_RxISR_16BITCRC(struct __SPI_HandleTypeDef *hspi) +{ + __IO uint16_t tmpreg = 0U; + + /* Read data register to flush CRC */ + tmpreg = hspi->Instance->DR; + + /* To avoid GCC warning */ + UNUSED(tmpreg); + + /* Disable RXNE and ERR interrupt */ + __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR)); + + SPI_CloseRx_ISR(hspi); +} +#endif /* USE_SPI_CRC */ + +/** + * @brief Manage the 16-bit receive in Interrupt context. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_RxISR_16BIT(struct __SPI_HandleTypeDef *hspi) +{ + *((uint16_t *)hspi->pRxBuffPtr) = hspi->Instance->DR; + hspi->pRxBuffPtr += sizeof(uint16_t); + hspi->RxXferCount--; + +#if (USE_SPI_CRC != 0U) + /* Enable CRC Transmission */ + if((hspi->RxXferCount == 1U) && (hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE)) + { + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + } +#endif /* USE_SPI_CRC */ + + if(hspi->RxXferCount == 0U) + { +#if (USE_SPI_CRC != 0U) + if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + hspi->RxISR = SPI_RxISR_16BITCRC; + return; + } +#endif /* USE_SPI_CRC */ + SPI_CloseRx_ISR(hspi); + } +} + +/** + * @brief Handle the data 8-bit transmit in Interrupt mode. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_TxISR_8BIT(struct __SPI_HandleTypeDef *hspi) +{ + *(__IO uint8_t *)&hspi->Instance->DR = (*hspi->pTxBuffPtr++); + hspi->TxXferCount--; + + if(hspi->TxXferCount == 0U) + { +#if (USE_SPI_CRC != 0U) + if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + /* Enable CRC Transmission */ + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + } +#endif /* USE_SPI_CRC */ + __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE)); + SPI_CloseTx_ISR(hspi); + } +} + +/** + * @brief Handle the data 16-bit transmit in Interrupt mode. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_TxISR_16BIT(struct __SPI_HandleTypeDef *hspi) +{ + /* Transmit data in 16 Bit mode */ + hspi->Instance->DR = *((uint16_t *)hspi->pTxBuffPtr); + hspi->pTxBuffPtr += sizeof(uint16_t); + hspi->TxXferCount--; + + if(hspi->TxXferCount == 0U) + { +#if (USE_SPI_CRC != 0U) + if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + /* Enable CRC Transmission */ + SET_BIT(hspi->Instance->CR1, SPI_CR1_CRCNEXT); + } +#endif /* USE_SPI_CRC */ + __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE)); + SPI_CloseTx_ISR(hspi); + } +} + +/** + * @brief Handle SPI Communication Timeout. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @param Flag: SPI flag to check + * @param State: flag state to check + * @param Timeout: Timeout duration + * @param Tickstart: tick start value + * @retval HAL status + */ +static HAL_StatusTypeDef SPI_WaitFlagStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Flag, uint32_t State, uint32_t Timeout, uint32_t Tickstart) +{ + while((hspi->Instance->SR & Flag) != State) + { + if(Timeout != HAL_MAX_DELAY) + { + if((Timeout == 0U) || ((HAL_GetTick()-Tickstart) >= Timeout)) + { + /* Disable the SPI and reset the CRC: the CRC value should be cleared + on both master and slave sides in order to resynchronize the master + and slave for their respective CRC calculation */ + + /* Disable TXE, RXNE and ERR interrupts for the interrupt process */ + __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_RXNE | SPI_IT_ERR)); + + if((hspi->Init.Mode == SPI_MODE_MASTER)&&((hspi->Init.Direction == SPI_DIRECTION_1LINE)||(hspi->Init.Direction == SPI_DIRECTION_2LINES_RXONLY))) + { + /* Disable SPI peripheral */ + __HAL_SPI_DISABLE(hspi); + } + + /* Reset CRC Calculation */ + if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + SPI_RESET_CRC(hspi); + } + + hspi->State= HAL_SPI_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + + return HAL_TIMEOUT; + } + } + } + + return HAL_OK; +} + +/** + * @brief Handle SPI Communication Timeout. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @param Flag: SPI TXE 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_WaitTXEFlagStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Timeout, uint32_t Tickstart) +{ + while((hspi->Instance->SR & SPI_FLAG_TXE) == RESET) + { + if(Timeout != HAL_MAX_DELAY) + { + if((Timeout == 0U) || ((HAL_GetTick()-Tickstart) >= Timeout)) + { + /* Disable the SPI and reset the CRC: the CRC value should be cleared + on both master and slave sides in order to resynchronize the master + and slave for their respective CRC calculation */ + + /* Disable TXE, RXNE and ERR interrupts for the interrupt process */ + __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_RXNE | SPI_IT_ERR)); + + if((hspi->Init.Mode == SPI_MODE_MASTER)&&((hspi->Init.Direction == SPI_DIRECTION_1LINE)||(hspi->Init.Direction == SPI_DIRECTION_2LINES_RXONLY))) + { + /* Disable SPI peripheral */ + __HAL_SPI_DISABLE(hspi); + } + + /* Reset CRC Calculation */ + if(hspi->Init.CRCCalculation == SPI_CRCCALCULATION_ENABLE) + { + SPI_RESET_CRC(hspi); + } + + hspi->State= HAL_SPI_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hspi); + + return HAL_TIMEOUT; + } + } + } + + return HAL_OK; +} + +/** + * @brief Handle to check BSY flag before start a new transaction. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @param Timeout: Timeout duration + * @param Tickstart: tick start value + * @retval HAL status + */ +static HAL_StatusTypeDef SPI_CheckFlag_BSY(SPI_HandleTypeDef *hspi, uint32_t Timeout, uint32_t Tickstart) +{ + /* Control the BSY flag */ + if(SPI_WaitFlagStateUntilTimeout(hspi, SPI_FLAG_BSY, RESET, Timeout, Tickstart) != HAL_OK) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + return HAL_TIMEOUT; + } + return HAL_OK; +} + +/** + * @brief Handle the end of the RXTX transaction. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_CloseRxTx_ISR(SPI_HandleTypeDef *hspi) +{ + uint32_t tickstart = 0U; + __IO uint32_t count = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U); + /* Init tickstart for timeout managment*/ + tickstart = HAL_GetTick(); + + /* Disable ERR interrupt */ + __HAL_SPI_DISABLE_IT(hspi, SPI_IT_ERR); + + /* Wait until TXE flag is set */ + do + { + if(count-- == 0U) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + break; + } + } + while((hspi->Instance->SR & SPI_FLAG_TXE) == RESET); + + /* Check the end of the transaction */ + if(SPI_CheckFlag_BSY(hspi, SPI_DEFAULT_TIMEOUT, tickstart)!=HAL_OK) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + } + + /* Clear overrun flag in 2 Lines communication mode because received is not read */ + if(hspi->Init.Direction == SPI_DIRECTION_2LINES) + { + __HAL_SPI_CLEAR_OVRFLAG(hspi); + } + +#if (USE_SPI_CRC != 0U) + /* Check if CRC error occurred */ + if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET) + { + hspi->State = HAL_SPI_STATE_READY; + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); + __HAL_SPI_CLEAR_CRCERRFLAG(hspi); + HAL_SPI_ErrorCallback(hspi); + } + else + { +#endif /* USE_SPI_CRC */ + if(hspi->ErrorCode == HAL_SPI_ERROR_NONE) + { + if(hspi->State == HAL_SPI_STATE_BUSY_RX) + { + hspi->State = HAL_SPI_STATE_READY; + HAL_SPI_RxCpltCallback(hspi); + } + else + { + hspi->State = HAL_SPI_STATE_READY; + HAL_SPI_TxRxCpltCallback(hspi); + } + } + else + { + hspi->State = HAL_SPI_STATE_READY; + HAL_SPI_ErrorCallback(hspi); + } +#if (USE_SPI_CRC != 0U) + } +#endif /* USE_SPI_CRC */ +} + +/** + * @brief Handle the end of the RX transaction. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_CloseRx_ISR(SPI_HandleTypeDef *hspi) +{ + /* Disable RXNE and ERR interrupt */ + __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_RXNE | SPI_IT_ERR)); + + /* Check the end of the transaction */ + if((hspi->Init.Mode == SPI_MODE_MASTER)&&((hspi->Init.Direction == SPI_DIRECTION_1LINE)||(hspi->Init.Direction == SPI_DIRECTION_2LINES_RXONLY))) + { + /* Disable SPI peripheral */ + __HAL_SPI_DISABLE(hspi); + } + + /* Clear overrun flag in 2 Lines communication mode because received is not read */ + if(hspi->Init.Direction == SPI_DIRECTION_2LINES) + { + __HAL_SPI_CLEAR_OVRFLAG(hspi); + } + hspi->State = HAL_SPI_STATE_READY; + +#if (USE_SPI_CRC != 0U) + /* Check if CRC error occurred */ + if(__HAL_SPI_GET_FLAG(hspi, SPI_FLAG_CRCERR) != RESET) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_CRC); + __HAL_SPI_CLEAR_CRCERRFLAG(hspi); + HAL_SPI_ErrorCallback(hspi); + } + else + { +#endif /* USE_SPI_CRC */ + if(hspi->ErrorCode == HAL_SPI_ERROR_NONE) + { + HAL_SPI_RxCpltCallback(hspi); + } + else + { + HAL_SPI_ErrorCallback(hspi); + } +#if (USE_SPI_CRC != 0U) + } +#endif /* USE_SPI_CRC */ +} + +/** + * @brief Handle the end of the TX transaction. + * @param hspi: pointer to a SPI_HandleTypeDef structure that contains + * the configuration information for SPI module. + * @retval None + */ +static void SPI_CloseTx_ISR(SPI_HandleTypeDef *hspi) +{ + uint32_t tickstart = 0U; + __IO uint32_t count = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U); + + /* Init tickstart for timeout management*/ + tickstart = HAL_GetTick(); + + /* Wait until TXE flag is set */ + do + { + if(count-- == 0U) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + break; + } + } + while((hspi->Instance->SR & SPI_FLAG_TXE) == RESET); + + /* Disable TXE and ERR interrupt */ + __HAL_SPI_DISABLE_IT(hspi, (SPI_IT_TXE | SPI_IT_ERR)); + + /* Check Busy flag */ + if(SPI_CheckFlag_BSY(hspi, SPI_DEFAULT_TIMEOUT, tickstart) != HAL_OK) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + } + + /* Clear overrun flag in 2 Lines communication mode because received is not read */ + if(hspi->Init.Direction == SPI_DIRECTION_2LINES) + { + __HAL_SPI_CLEAR_OVRFLAG(hspi); + } + + hspi->State = HAL_SPI_STATE_READY; + if(hspi->ErrorCode != HAL_SPI_ERROR_NONE) + { + HAL_SPI_ErrorCallback(hspi); + } + else + { + HAL_SPI_TxCpltCallback(hspi); + } +} + +/** + * @} + */ + +/** + * @brief Handle abort a Tx or 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 tmpreg = 0U; + __IO uint32_t count = SPI_DEFAULT_TIMEOUT * (SystemCoreClock / 24U / 1000U); + + /* Wait until TXE flag is set */ + do + { + if(count-- == 0U) + { + SET_BIT(hspi->ErrorCode, HAL_SPI_ERROR_FLAG); + break; + } + } + while((hspi->Instance->SR & SPI_FLAG_TXE) == RESET); + + /* Disable SPI Peripheral */ + __HAL_SPI_DISABLE(hspi); + + /* 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)); + + /* Flush DR Register */ + tmpreg = (*(__IO uint32_t *)&hspi->Instance->DR); + + /* To avoid GCC warning */ + UNUSED(tmpreg); +} + +/** + * @brief Handle abort a Tx or Rx 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) +{ + /* 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)); + + /* Disable SPI Peripheral */ + __HAL_SPI_DISABLE(hspi); +} +/** + * @} + */ +#endif /* HAL_SPI_MODULE_ENABLED */ + +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ +