From 86608c6770cf08c138a2bdab5855072f64be09ef Mon Sep 17 00:00:00 2001 From: joshua Date: Sat, 30 Dec 2023 23:54:31 -0500 Subject: initial commit --- .../STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_uart.c | 4722 ++++++++++++++++++++ 1 file changed, 4722 insertions(+) create mode 100644 Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_uart.c (limited to 'Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_uart.c') diff --git a/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_uart.c b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_uart.c new file mode 100644 index 0000000..d50092f --- /dev/null +++ b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_uart.c @@ -0,0 +1,4722 @@ +/** + ****************************************************************************** + * @file stm32h7xx_hal_uart.c + * @author MCD Application Team + * @brief UART HAL module driver. + * This file provides firmware functions to manage the following + * functionalities of the Universal Asynchronous Receiver Transmitter Peripheral (UART). + * + Initialization and de-initialization functions + * + IO operation functions + * + Peripheral Control functions + * + * + ****************************************************************************** + * @attention + * + * Copyright (c) 2017 STMicroelectronics. + * All rights reserved. + * + * This software is licensed under terms that can be found in the LICENSE file + * in the root directory of this software component. + * If no LICENSE file comes with this software, it is provided AS-IS. + * + ****************************************************************************** + @verbatim + =============================================================================== + ##### How to use this driver ##### + =============================================================================== + [..] + The UART HAL driver can be used as follows: + + (#) Declare a UART_HandleTypeDef handle structure (eg. UART_HandleTypeDef huart). + (#) Initialize the UART low level resources by implementing the HAL_UART_MspInit() API: + (++) Enable the USARTx interface clock. + (++) UART pins configuration: + (+++) Enable the clock for the UART GPIOs. + (+++) Configure these UART pins as alternate function pull-up. + (++) NVIC configuration if you need to use interrupt process (HAL_UART_Transmit_IT() + and HAL_UART_Receive_IT() APIs): + (+++) Configure the USARTx interrupt priority. + (+++) Enable the NVIC USART IRQ handle. + (++) UART interrupts handling: + -@@- The specific UART interrupts (Transmission complete interrupt, + RXNE interrupt, RX/TX FIFOs related interrupts and Error Interrupts) + are managed using the macros __HAL_UART_ENABLE_IT() and __HAL_UART_DISABLE_IT() + inside the transmit and receive processes. + (++) DMA Configuration if you need to use DMA process (HAL_UART_Transmit_DMA() + and HAL_UART_Receive_DMA() APIs): + (+++) Declare a DMA handle structure for the Tx/Rx channel. + (+++) Enable the DMAx interface clock. + (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters. + (+++) Configure the DMA Tx/Rx channel. + (+++) Associate the initialized DMA handle to the UART DMA Tx/Rx handle. + (+++) Configure the priority and enable the NVIC for the transfer complete + interrupt on the DMA Tx/Rx channel. + + (#) Program the Baud Rate, Word Length, Stop Bit, Parity, Prescaler value , Hardware + flow control and Mode (Receiver/Transmitter) in the huart handle Init structure. + + (#) If required, program UART advanced features (TX/RX pins swap, auto Baud rate detection,...) + in the huart handle AdvancedInit structure. + + (#) For the UART asynchronous mode, initialize the UART registers by calling + the HAL_UART_Init() API. + + (#) For the UART Half duplex mode, initialize the UART registers by calling + the HAL_HalfDuplex_Init() API. + + (#) For the UART LIN (Local Interconnection Network) mode, initialize the UART registers + by calling the HAL_LIN_Init() API. + + (#) For the UART Multiprocessor mode, initialize the UART registers + by calling the HAL_MultiProcessor_Init() API. + + (#) For the UART RS485 Driver Enabled mode, initialize the UART registers + by calling the HAL_RS485Ex_Init() API. + + [..] + (@) These API's (HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_LIN_Init(), HAL_MultiProcessor_Init(), + also configure the low level Hardware GPIO, CLOCK, CORTEX...etc) by + calling the customized HAL_UART_MspInit() API. + + ##### Callback registration ##### + ================================== + + [..] + The compilation define USE_HAL_UART_REGISTER_CALLBACKS when set to 1 + allows the user to configure dynamically the driver callbacks. + + [..] + Use Function HAL_UART_RegisterCallback() to register a user callback. + Function HAL_UART_RegisterCallback() allows to register following callbacks: + (+) TxHalfCpltCallback : Tx Half Complete Callback. + (+) TxCpltCallback : Tx Complete Callback. + (+) RxHalfCpltCallback : Rx Half Complete Callback. + (+) RxCpltCallback : Rx Complete Callback. + (+) ErrorCallback : Error Callback. + (+) AbortCpltCallback : Abort Complete Callback. + (+) AbortTransmitCpltCallback : Abort Transmit Complete Callback. + (+) AbortReceiveCpltCallback : Abort Receive Complete Callback. + (+) WakeupCallback : Wakeup Callback. + (+) RxFifoFullCallback : Rx Fifo Full Callback. + (+) TxFifoEmptyCallback : Tx Fifo Empty Callback. + (+) MspInitCallback : UART MspInit. + (+) MspDeInitCallback : UART MspDeInit. + This function takes as parameters the HAL peripheral handle, the Callback ID + and a pointer to the user callback function. + + [..] + Use function HAL_UART_UnRegisterCallback() to reset a callback to the default + weak (surcharged) function. + HAL_UART_UnRegisterCallback() takes as parameters the HAL peripheral handle, + and the Callback ID. + This function allows to reset following callbacks: + (+) TxHalfCpltCallback : Tx Half Complete Callback. + (+) TxCpltCallback : Tx Complete Callback. + (+) RxHalfCpltCallback : Rx Half Complete Callback. + (+) RxCpltCallback : Rx Complete Callback. + (+) ErrorCallback : Error Callback. + (+) AbortCpltCallback : Abort Complete Callback. + (+) AbortTransmitCpltCallback : Abort Transmit Complete Callback. + (+) AbortReceiveCpltCallback : Abort Receive Complete Callback. + (+) WakeupCallback : Wakeup Callback. + (+) RxFifoFullCallback : Rx Fifo Full Callback. + (+) TxFifoEmptyCallback : Tx Fifo Empty Callback. + (+) MspInitCallback : UART MspInit. + (+) MspDeInitCallback : UART MspDeInit. + + [..] + For specific callback RxEventCallback, use dedicated registration/reset functions: + respectively HAL_UART_RegisterRxEventCallback() , HAL_UART_UnRegisterRxEventCallback(). + + [..] + By default, after the HAL_UART_Init() and when the state is HAL_UART_STATE_RESET + all callbacks are set to the corresponding weak (surcharged) functions: + examples HAL_UART_TxCpltCallback(), HAL_UART_RxHalfCpltCallback(). + Exception done for MspInit and MspDeInit functions that are respectively + reset to the legacy weak (surcharged) functions in the HAL_UART_Init() + and HAL_UART_DeInit() only when these callbacks are null (not registered beforehand). + If not, MspInit or MspDeInit are not null, the HAL_UART_Init() and HAL_UART_DeInit() + keep and use the user MspInit/MspDeInit callbacks (registered beforehand). + + [..] + Callbacks can be registered/unregistered in HAL_UART_STATE_READY state only. + Exception done MspInit/MspDeInit that can be registered/unregistered + in HAL_UART_STATE_READY or HAL_UART_STATE_RESET state, thus registered (user) + MspInit/DeInit callbacks can be used during the Init/DeInit. + In that case first register the MspInit/MspDeInit user callbacks + using HAL_UART_RegisterCallback() before calling HAL_UART_DeInit() + or HAL_UART_Init() function. + + [..] + When The compilation define USE_HAL_UART_REGISTER_CALLBACKS is set to 0 or + not defined, the callback registration feature is not available + and weak (surcharged) callbacks are used. + + + @endverbatim + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32h7xx_hal.h" + +/** @addtogroup STM32H7xx_HAL_Driver + * @{ + */ + +/** @defgroup UART UART + * @brief HAL UART module driver + * @{ + */ + +#ifdef HAL_UART_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/** @defgroup UART_Private_Constants UART Private Constants + * @{ + */ +#define USART_CR1_FIELDS ((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | USART_CR1_RE | \ + USART_CR1_OVER8 | USART_CR1_FIFOEN)) /*!< UART or USART CR1 fields of parameters set by UART_SetConfig API */ + +#define USART_CR3_FIELDS ((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE | USART_CR3_ONEBIT | USART_CR3_TXFTCFG | \ + USART_CR3_RXFTCFG)) /*!< UART or USART CR3 fields of parameters set by UART_SetConfig API */ + +#define LPUART_BRR_MIN 0x00000300U /* LPUART BRR minimum authorized value */ +#define LPUART_BRR_MAX 0x000FFFFFU /* LPUART BRR maximum authorized value */ + +#define UART_BRR_MIN 0x10U /* UART BRR minimum authorized value */ +#define UART_BRR_MAX 0x0000FFFFU /* UART BRR maximum authorized value */ +/** + * @} + */ + +/* Private macros ------------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/** @addtogroup UART_Private_Functions + * @{ + */ +static void UART_EndTxTransfer(UART_HandleTypeDef *huart); +static void UART_EndRxTransfer(UART_HandleTypeDef *huart); +static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma); +static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma); +static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma); +static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma); +static void UART_DMAError(DMA_HandleTypeDef *hdma); +static void UART_DMAAbortOnError(DMA_HandleTypeDef *hdma); +static void UART_DMATxAbortCallback(DMA_HandleTypeDef *hdma); +static void UART_DMARxAbortCallback(DMA_HandleTypeDef *hdma); +static void UART_DMATxOnlyAbortCallback(DMA_HandleTypeDef *hdma); +static void UART_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma); +static void UART_TxISR_8BIT(UART_HandleTypeDef *huart); +static void UART_TxISR_16BIT(UART_HandleTypeDef *huart); +static void UART_TxISR_8BIT_FIFOEN(UART_HandleTypeDef *huart); +static void UART_TxISR_16BIT_FIFOEN(UART_HandleTypeDef *huart); +static void UART_EndTransmit_IT(UART_HandleTypeDef *huart); +static void UART_RxISR_8BIT(UART_HandleTypeDef *huart); +static void UART_RxISR_16BIT(UART_HandleTypeDef *huart); +static void UART_RxISR_8BIT_FIFOEN(UART_HandleTypeDef *huart); +static void UART_RxISR_16BIT_FIFOEN(UART_HandleTypeDef *huart); +/** + * @} + */ + +/* Private variables ---------------------------------------------------------*/ +/** @addtogroup UART_Private_variables + * @{ + */ +const uint16_t UARTPrescTable[12] = {1U, 2U, 4U, 6U, 8U, 10U, 12U, 16U, 32U, 64U, 128U, 256U}; +/** + * @} + */ + +/* Exported Constants --------------------------------------------------------*/ +/* Exported functions --------------------------------------------------------*/ + +/** @defgroup UART_Exported_Functions UART Exported Functions + * @{ + */ + +/** @defgroup UART_Exported_Functions_Group1 Initialization and de-initialization functions + * @brief Initialization and Configuration functions + * +@verbatim +=============================================================================== + ##### Initialization and Configuration functions ##### + =============================================================================== + [..] + This subsection provides a set of functions allowing to initialize the USARTx or the UARTy + in asynchronous mode. + (+) For the asynchronous mode the parameters below can be configured: + (++) Baud Rate + (++) Word Length + (++) Stop Bit + (++) Parity: If the parity is enabled, then the MSB bit of the data written + in the data register is transmitted but is changed by the parity bit. + (++) Hardware flow control + (++) Receiver/transmitter modes + (++) Over Sampling Method + (++) One-Bit Sampling Method + (+) For the asynchronous mode, the following advanced features can be configured as well: + (++) TX and/or RX pin level inversion + (++) data logical level inversion + (++) RX and TX pins swap + (++) RX overrun detection disabling + (++) DMA disabling on RX error + (++) MSB first on communication line + (++) auto Baud rate detection + [..] + The HAL_UART_Init(), HAL_HalfDuplex_Init(), HAL_LIN_Init()and HAL_MultiProcessor_Init()API + follow respectively the UART asynchronous, UART Half duplex, UART LIN mode + and UART multiprocessor mode configuration procedures (details for the procedures + are available in reference manual). + +@endverbatim + + Depending on the frame length defined by the M1 and M0 bits (7-bit, + 8-bit or 9-bit), the possible UART formats are listed in the + following table. + + Table 1. UART frame format. + +-----------------------------------------------------------------------+ + | M1 bit | M0 bit | PCE bit | UART frame | + |---------|---------|-----------|---------------------------------------| + | 0 | 0 | 0 | | SB | 8 bit data | STB | | + |---------|---------|-----------|---------------------------------------| + | 0 | 0 | 1 | | SB | 7 bit data | PB | STB | | + |---------|---------|-----------|---------------------------------------| + | 0 | 1 | 0 | | SB | 9 bit data | STB | | + |---------|---------|-----------|---------------------------------------| + | 0 | 1 | 1 | | SB | 8 bit data | PB | STB | | + |---------|---------|-----------|---------------------------------------| + | 1 | 0 | 0 | | SB | 7 bit data | STB | | + |---------|---------|-----------|---------------------------------------| + | 1 | 0 | 1 | | SB | 6 bit data | PB | STB | | + +-----------------------------------------------------------------------+ + + * @{ + */ + +/** + * @brief Initialize the UART mode according to the specified + * parameters in the UART_InitTypeDef and initialize the associated handle. + * @param huart UART handle. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart) +{ + /* Check the UART handle allocation */ + if (huart == NULL) + { + return HAL_ERROR; + } + + if (huart->Init.HwFlowCtl != UART_HWCONTROL_NONE) + { + /* Check the parameters */ + assert_param(IS_UART_HWFLOW_INSTANCE(huart->Instance)); + } + else + { + /* Check the parameters */ + assert_param((IS_UART_INSTANCE(huart->Instance)) || (IS_LPUART_INSTANCE(huart->Instance))); + } + + if (huart->gState == HAL_UART_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + huart->Lock = HAL_UNLOCKED; + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + UART_InitCallbacksToDefault(huart); + + if (huart->MspInitCallback == NULL) + { + huart->MspInitCallback = HAL_UART_MspInit; + } + + /* Init the low level hardware */ + huart->MspInitCallback(huart); +#else + /* Init the low level hardware : GPIO, CLOCK */ + HAL_UART_MspInit(huart); +#endif /* (USE_HAL_UART_REGISTER_CALLBACKS) */ + } + + huart->gState = HAL_UART_STATE_BUSY; + + __HAL_UART_DISABLE(huart); + + /* Set the UART Communication parameters */ + if (UART_SetConfig(huart) == HAL_ERROR) + { + return HAL_ERROR; + } + + if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT) + { + UART_AdvFeatureConfig(huart); + } + + /* In asynchronous mode, the following bits must be kept cleared: + - LINEN and CLKEN bits in the USART_CR2 register, + - SCEN, HDSEL and IREN bits in the USART_CR3 register.*/ + CLEAR_BIT(huart->Instance->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN)); + CLEAR_BIT(huart->Instance->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN)); + + __HAL_UART_ENABLE(huart); + + /* TEACK and/or REACK to check before moving huart->gState and huart->RxState to Ready */ + return (UART_CheckIdleState(huart)); +} + +/** + * @brief Initialize the half-duplex mode according to the specified + * parameters in the UART_InitTypeDef and creates the associated handle. + * @param huart UART handle. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_HalfDuplex_Init(UART_HandleTypeDef *huart) +{ + /* Check the UART handle allocation */ + if (huart == NULL) + { + return HAL_ERROR; + } + + /* Check UART instance */ + assert_param(IS_UART_HALFDUPLEX_INSTANCE(huart->Instance)); + + if (huart->gState == HAL_UART_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + huart->Lock = HAL_UNLOCKED; + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + UART_InitCallbacksToDefault(huart); + + if (huart->MspInitCallback == NULL) + { + huart->MspInitCallback = HAL_UART_MspInit; + } + + /* Init the low level hardware */ + huart->MspInitCallback(huart); +#else + /* Init the low level hardware : GPIO, CLOCK */ + HAL_UART_MspInit(huart); +#endif /* (USE_HAL_UART_REGISTER_CALLBACKS) */ + } + + huart->gState = HAL_UART_STATE_BUSY; + + __HAL_UART_DISABLE(huart); + + /* Set the UART Communication parameters */ + if (UART_SetConfig(huart) == HAL_ERROR) + { + return HAL_ERROR; + } + + if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT) + { + UART_AdvFeatureConfig(huart); + } + + /* In half-duplex mode, the following bits must be kept cleared: + - LINEN and CLKEN bits in the USART_CR2 register, + - SCEN and IREN bits in the USART_CR3 register.*/ + CLEAR_BIT(huart->Instance->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN)); + CLEAR_BIT(huart->Instance->CR3, (USART_CR3_IREN | USART_CR3_SCEN)); + + /* Enable the Half-Duplex mode by setting the HDSEL bit in the CR3 register */ + SET_BIT(huart->Instance->CR3, USART_CR3_HDSEL); + + __HAL_UART_ENABLE(huart); + + /* TEACK and/or REACK to check before moving huart->gState and huart->RxState to Ready */ + return (UART_CheckIdleState(huart)); +} + + +/** + * @brief Initialize the LIN mode according to the specified + * parameters in the UART_InitTypeDef and creates the associated handle. + * @param huart UART handle. + * @param BreakDetectLength Specifies the LIN break detection length. + * This parameter can be one of the following values: + * @arg @ref UART_LINBREAKDETECTLENGTH_10B 10-bit break detection + * @arg @ref UART_LINBREAKDETECTLENGTH_11B 11-bit break detection + * @retval HAL status + */ +HAL_StatusTypeDef HAL_LIN_Init(UART_HandleTypeDef *huart, uint32_t BreakDetectLength) +{ + /* Check the UART handle allocation */ + if (huart == NULL) + { + return HAL_ERROR; + } + + /* Check the LIN UART instance */ + assert_param(IS_UART_LIN_INSTANCE(huart->Instance)); + /* Check the Break detection length parameter */ + assert_param(IS_UART_LIN_BREAK_DETECT_LENGTH(BreakDetectLength)); + + /* LIN mode limited to 16-bit oversampling only */ + if (huart->Init.OverSampling == UART_OVERSAMPLING_8) + { + return HAL_ERROR; + } + /* LIN mode limited to 8-bit data length */ + if (huart->Init.WordLength != UART_WORDLENGTH_8B) + { + return HAL_ERROR; + } + + if (huart->gState == HAL_UART_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + huart->Lock = HAL_UNLOCKED; + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + UART_InitCallbacksToDefault(huart); + + if (huart->MspInitCallback == NULL) + { + huart->MspInitCallback = HAL_UART_MspInit; + } + + /* Init the low level hardware */ + huart->MspInitCallback(huart); +#else + /* Init the low level hardware : GPIO, CLOCK */ + HAL_UART_MspInit(huart); +#endif /* (USE_HAL_UART_REGISTER_CALLBACKS) */ + } + + huart->gState = HAL_UART_STATE_BUSY; + + __HAL_UART_DISABLE(huart); + + /* Set the UART Communication parameters */ + if (UART_SetConfig(huart) == HAL_ERROR) + { + return HAL_ERROR; + } + + if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT) + { + UART_AdvFeatureConfig(huart); + } + + /* In LIN mode, the following bits must be kept cleared: + - LINEN and CLKEN bits in the USART_CR2 register, + - SCEN and IREN bits in the USART_CR3 register.*/ + CLEAR_BIT(huart->Instance->CR2, USART_CR2_CLKEN); + CLEAR_BIT(huart->Instance->CR3, (USART_CR3_HDSEL | USART_CR3_IREN | USART_CR3_SCEN)); + + /* Enable the LIN mode by setting the LINEN bit in the CR2 register */ + SET_BIT(huart->Instance->CR2, USART_CR2_LINEN); + + /* Set the USART LIN Break detection length. */ + MODIFY_REG(huart->Instance->CR2, USART_CR2_LBDL, BreakDetectLength); + + __HAL_UART_ENABLE(huart); + + /* TEACK and/or REACK to check before moving huart->gState and huart->RxState to Ready */ + return (UART_CheckIdleState(huart)); +} + + +/** + * @brief Initialize the multiprocessor mode according to the specified + * parameters in the UART_InitTypeDef and initialize the associated handle. + * @param huart UART handle. + * @param Address UART node address (4-, 6-, 7- or 8-bit long). + * @param WakeUpMethod Specifies the UART wakeup method. + * This parameter can be one of the following values: + * @arg @ref UART_WAKEUPMETHOD_IDLELINE WakeUp by an idle line detection + * @arg @ref UART_WAKEUPMETHOD_ADDRESSMARK WakeUp by an address mark + * @note If the user resorts to idle line detection wake up, the Address parameter + * is useless and ignored by the initialization function. + * @note If the user resorts to address mark wake up, the address length detection + * is configured by default to 4 bits only. For the UART to be able to + * manage 6-, 7- or 8-bit long addresses detection, the API + * HAL_MultiProcessorEx_AddressLength_Set() must be called after + * HAL_MultiProcessor_Init(). + * @retval HAL status + */ +HAL_StatusTypeDef HAL_MultiProcessor_Init(UART_HandleTypeDef *huart, uint8_t Address, uint32_t WakeUpMethod) +{ + /* Check the UART handle allocation */ + if (huart == NULL) + { + return HAL_ERROR; + } + + /* Check the wake up method parameter */ + assert_param(IS_UART_WAKEUPMETHOD(WakeUpMethod)); + + if (huart->gState == HAL_UART_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + huart->Lock = HAL_UNLOCKED; + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + UART_InitCallbacksToDefault(huart); + + if (huart->MspInitCallback == NULL) + { + huart->MspInitCallback = HAL_UART_MspInit; + } + + /* Init the low level hardware */ + huart->MspInitCallback(huart); +#else + /* Init the low level hardware : GPIO, CLOCK */ + HAL_UART_MspInit(huart); +#endif /* (USE_HAL_UART_REGISTER_CALLBACKS) */ + } + + huart->gState = HAL_UART_STATE_BUSY; + + __HAL_UART_DISABLE(huart); + + /* Set the UART Communication parameters */ + if (UART_SetConfig(huart) == HAL_ERROR) + { + return HAL_ERROR; + } + + if (huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT) + { + UART_AdvFeatureConfig(huart); + } + + /* In multiprocessor mode, the following bits must be kept cleared: + - LINEN and CLKEN bits in the USART_CR2 register, + - SCEN, HDSEL and IREN bits in the USART_CR3 register. */ + CLEAR_BIT(huart->Instance->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN)); + CLEAR_BIT(huart->Instance->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN)); + + if (WakeUpMethod == UART_WAKEUPMETHOD_ADDRESSMARK) + { + /* If address mark wake up method is chosen, set the USART address node */ + MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, ((uint32_t)Address << UART_CR2_ADDRESS_LSB_POS)); + } + + /* Set the wake up method by setting the WAKE bit in the CR1 register */ + MODIFY_REG(huart->Instance->CR1, USART_CR1_WAKE, WakeUpMethod); + + __HAL_UART_ENABLE(huart); + + /* TEACK and/or REACK to check before moving huart->gState and huart->RxState to Ready */ + return (UART_CheckIdleState(huart)); +} + + +/** + * @brief DeInitialize the UART peripheral. + * @param huart UART handle. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart) +{ + /* Check the UART handle allocation */ + if (huart == NULL) + { + return HAL_ERROR; + } + + /* Check the parameters */ + assert_param((IS_UART_INSTANCE(huart->Instance)) || (IS_LPUART_INSTANCE(huart->Instance))); + + huart->gState = HAL_UART_STATE_BUSY; + + __HAL_UART_DISABLE(huart); + + huart->Instance->CR1 = 0x0U; + huart->Instance->CR2 = 0x0U; + huart->Instance->CR3 = 0x0U; + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + if (huart->MspDeInitCallback == NULL) + { + huart->MspDeInitCallback = HAL_UART_MspDeInit; + } + /* DeInit the low level hardware */ + huart->MspDeInitCallback(huart); +#else + /* DeInit the low level hardware */ + HAL_UART_MspDeInit(huart); +#endif /* (USE_HAL_UART_REGISTER_CALLBACKS) */ + + huart->ErrorCode = HAL_UART_ERROR_NONE; + huart->gState = HAL_UART_STATE_RESET; + huart->RxState = HAL_UART_STATE_RESET; + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + huart->RxEventType = HAL_UART_RXEVENT_TC; + + __HAL_UNLOCK(huart); + + return HAL_OK; +} + +/** + * @brief Initialize the UART MSP. + * @param huart UART handle. + * @retval None + */ +__weak void HAL_UART_MspInit(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_UART_MspInit can be implemented in the user file + */ +} + +/** + * @brief DeInitialize the UART MSP. + * @param huart UART handle. + * @retval None + */ +__weak void HAL_UART_MspDeInit(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_UART_MspDeInit can be implemented in the user file + */ +} + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) +/** + * @brief Register a User UART Callback + * To be used instead of the weak predefined callback + * @note The HAL_UART_RegisterCallback() may be called before HAL_UART_Init(), HAL_HalfDuplex_Init(), + * HAL_LIN_Init(), HAL_MultiProcessor_Init() or HAL_RS485Ex_Init() in HAL_UART_STATE_RESET to register + * callbacks for HAL_UART_MSPINIT_CB_ID and HAL_UART_MSPDEINIT_CB_ID + * @param huart uart handle + * @param CallbackID ID of the callback to be registered + * This parameter can be one of the following values: + * @arg @ref HAL_UART_TX_HALFCOMPLETE_CB_ID Tx Half Complete Callback ID + * @arg @ref HAL_UART_TX_COMPLETE_CB_ID Tx Complete Callback ID + * @arg @ref HAL_UART_RX_HALFCOMPLETE_CB_ID Rx Half Complete Callback ID + * @arg @ref HAL_UART_RX_COMPLETE_CB_ID Rx Complete Callback ID + * @arg @ref HAL_UART_ERROR_CB_ID Error Callback ID + * @arg @ref HAL_UART_ABORT_COMPLETE_CB_ID Abort Complete Callback ID + * @arg @ref HAL_UART_ABORT_TRANSMIT_COMPLETE_CB_ID Abort Transmit Complete Callback ID + * @arg @ref HAL_UART_ABORT_RECEIVE_COMPLETE_CB_ID Abort Receive Complete Callback ID + * @arg @ref HAL_UART_WAKEUP_CB_ID Wakeup Callback ID + * @arg @ref HAL_UART_RX_FIFO_FULL_CB_ID Rx Fifo Full Callback ID + * @arg @ref HAL_UART_TX_FIFO_EMPTY_CB_ID Tx Fifo Empty Callback ID + * @arg @ref HAL_UART_MSPINIT_CB_ID MspInit Callback ID + * @arg @ref HAL_UART_MSPDEINIT_CB_ID MspDeInit Callback ID + * @param pCallback pointer to the Callback function + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_RegisterCallback(UART_HandleTypeDef *huart, HAL_UART_CallbackIDTypeDef CallbackID, + pUART_CallbackTypeDef pCallback) +{ + HAL_StatusTypeDef status = HAL_OK; + + if (pCallback == NULL) + { + huart->ErrorCode |= HAL_UART_ERROR_INVALID_CALLBACK; + + return HAL_ERROR; + } + + if (huart->gState == HAL_UART_STATE_READY) + { + switch (CallbackID) + { + case HAL_UART_TX_HALFCOMPLETE_CB_ID : + huart->TxHalfCpltCallback = pCallback; + break; + + case HAL_UART_TX_COMPLETE_CB_ID : + huart->TxCpltCallback = pCallback; + break; + + case HAL_UART_RX_HALFCOMPLETE_CB_ID : + huart->RxHalfCpltCallback = pCallback; + break; + + case HAL_UART_RX_COMPLETE_CB_ID : + huart->RxCpltCallback = pCallback; + break; + + case HAL_UART_ERROR_CB_ID : + huart->ErrorCallback = pCallback; + break; + + case HAL_UART_ABORT_COMPLETE_CB_ID : + huart->AbortCpltCallback = pCallback; + break; + + case HAL_UART_ABORT_TRANSMIT_COMPLETE_CB_ID : + huart->AbortTransmitCpltCallback = pCallback; + break; + + case HAL_UART_ABORT_RECEIVE_COMPLETE_CB_ID : + huart->AbortReceiveCpltCallback = pCallback; + break; + + case HAL_UART_WAKEUP_CB_ID : + huart->WakeupCallback = pCallback; + break; + + case HAL_UART_RX_FIFO_FULL_CB_ID : + huart->RxFifoFullCallback = pCallback; + break; + + case HAL_UART_TX_FIFO_EMPTY_CB_ID : + huart->TxFifoEmptyCallback = pCallback; + break; + + case HAL_UART_MSPINIT_CB_ID : + huart->MspInitCallback = pCallback; + break; + + case HAL_UART_MSPDEINIT_CB_ID : + huart->MspDeInitCallback = pCallback; + break; + + default : + huart->ErrorCode |= HAL_UART_ERROR_INVALID_CALLBACK; + + status = HAL_ERROR; + break; + } + } + else if (huart->gState == HAL_UART_STATE_RESET) + { + switch (CallbackID) + { + case HAL_UART_MSPINIT_CB_ID : + huart->MspInitCallback = pCallback; + break; + + case HAL_UART_MSPDEINIT_CB_ID : + huart->MspDeInitCallback = pCallback; + break; + + default : + huart->ErrorCode |= HAL_UART_ERROR_INVALID_CALLBACK; + + status = HAL_ERROR; + break; + } + } + else + { + huart->ErrorCode |= HAL_UART_ERROR_INVALID_CALLBACK; + + status = HAL_ERROR; + } + + return status; +} + +/** + * @brief Unregister an UART Callback + * UART callaback is redirected to the weak predefined callback + * @note The HAL_UART_UnRegisterCallback() may be called before HAL_UART_Init(), HAL_HalfDuplex_Init(), + * HAL_LIN_Init(), HAL_MultiProcessor_Init() or HAL_RS485Ex_Init() in HAL_UART_STATE_RESET to un-register + * callbacks for HAL_UART_MSPINIT_CB_ID and HAL_UART_MSPDEINIT_CB_ID + * @param huart uart handle + * @param CallbackID ID of the callback to be unregistered + * This parameter can be one of the following values: + * @arg @ref HAL_UART_TX_HALFCOMPLETE_CB_ID Tx Half Complete Callback ID + * @arg @ref HAL_UART_TX_COMPLETE_CB_ID Tx Complete Callback ID + * @arg @ref HAL_UART_RX_HALFCOMPLETE_CB_ID Rx Half Complete Callback ID + * @arg @ref HAL_UART_RX_COMPLETE_CB_ID Rx Complete Callback ID + * @arg @ref HAL_UART_ERROR_CB_ID Error Callback ID + * @arg @ref HAL_UART_ABORT_COMPLETE_CB_ID Abort Complete Callback ID + * @arg @ref HAL_UART_ABORT_TRANSMIT_COMPLETE_CB_ID Abort Transmit Complete Callback ID + * @arg @ref HAL_UART_ABORT_RECEIVE_COMPLETE_CB_ID Abort Receive Complete Callback ID + * @arg @ref HAL_UART_WAKEUP_CB_ID Wakeup Callback ID + * @arg @ref HAL_UART_RX_FIFO_FULL_CB_ID Rx Fifo Full Callback ID + * @arg @ref HAL_UART_TX_FIFO_EMPTY_CB_ID Tx Fifo Empty Callback ID + * @arg @ref HAL_UART_MSPINIT_CB_ID MspInit Callback ID + * @arg @ref HAL_UART_MSPDEINIT_CB_ID MspDeInit Callback ID + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_UnRegisterCallback(UART_HandleTypeDef *huart, HAL_UART_CallbackIDTypeDef CallbackID) +{ + HAL_StatusTypeDef status = HAL_OK; + + if (HAL_UART_STATE_READY == huart->gState) + { + switch (CallbackID) + { + case HAL_UART_TX_HALFCOMPLETE_CB_ID : + huart->TxHalfCpltCallback = HAL_UART_TxHalfCpltCallback; /* Legacy weak TxHalfCpltCallback */ + break; + + case HAL_UART_TX_COMPLETE_CB_ID : + huart->TxCpltCallback = HAL_UART_TxCpltCallback; /* Legacy weak TxCpltCallback */ + break; + + case HAL_UART_RX_HALFCOMPLETE_CB_ID : + huart->RxHalfCpltCallback = HAL_UART_RxHalfCpltCallback; /* Legacy weak RxHalfCpltCallback */ + break; + + case HAL_UART_RX_COMPLETE_CB_ID : + huart->RxCpltCallback = HAL_UART_RxCpltCallback; /* Legacy weak RxCpltCallback */ + break; + + case HAL_UART_ERROR_CB_ID : + huart->ErrorCallback = HAL_UART_ErrorCallback; /* Legacy weak ErrorCallback */ + break; + + case HAL_UART_ABORT_COMPLETE_CB_ID : + huart->AbortCpltCallback = HAL_UART_AbortCpltCallback; /* Legacy weak AbortCpltCallback */ + break; + + case HAL_UART_ABORT_TRANSMIT_COMPLETE_CB_ID : + huart->AbortTransmitCpltCallback = HAL_UART_AbortTransmitCpltCallback; /* Legacy weak + AbortTransmitCpltCallback */ + break; + + case HAL_UART_ABORT_RECEIVE_COMPLETE_CB_ID : + huart->AbortReceiveCpltCallback = HAL_UART_AbortReceiveCpltCallback; /* Legacy weak + AbortReceiveCpltCallback */ + break; + + case HAL_UART_WAKEUP_CB_ID : + huart->WakeupCallback = HAL_UARTEx_WakeupCallback; /* Legacy weak WakeupCallback */ + break; + + case HAL_UART_RX_FIFO_FULL_CB_ID : + huart->RxFifoFullCallback = HAL_UARTEx_RxFifoFullCallback; /* Legacy weak RxFifoFullCallback */ + break; + + case HAL_UART_TX_FIFO_EMPTY_CB_ID : + huart->TxFifoEmptyCallback = HAL_UARTEx_TxFifoEmptyCallback; /* Legacy weak TxFifoEmptyCallback */ + break; + + case HAL_UART_MSPINIT_CB_ID : + huart->MspInitCallback = HAL_UART_MspInit; /* Legacy weak MspInitCallback */ + break; + + case HAL_UART_MSPDEINIT_CB_ID : + huart->MspDeInitCallback = HAL_UART_MspDeInit; /* Legacy weak MspDeInitCallback */ + break; + + default : + huart->ErrorCode |= HAL_UART_ERROR_INVALID_CALLBACK; + + status = HAL_ERROR; + break; + } + } + else if (HAL_UART_STATE_RESET == huart->gState) + { + switch (CallbackID) + { + case HAL_UART_MSPINIT_CB_ID : + huart->MspInitCallback = HAL_UART_MspInit; + break; + + case HAL_UART_MSPDEINIT_CB_ID : + huart->MspDeInitCallback = HAL_UART_MspDeInit; + break; + + default : + huart->ErrorCode |= HAL_UART_ERROR_INVALID_CALLBACK; + + status = HAL_ERROR; + break; + } + } + else + { + huart->ErrorCode |= HAL_UART_ERROR_INVALID_CALLBACK; + + status = HAL_ERROR; + } + + return status; +} + +/** + * @brief Register a User UART Rx Event Callback + * To be used instead of the weak predefined callback + * @param huart Uart handle + * @param pCallback Pointer to the Rx Event Callback function + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_RegisterRxEventCallback(UART_HandleTypeDef *huart, pUART_RxEventCallbackTypeDef pCallback) +{ + HAL_StatusTypeDef status = HAL_OK; + + if (pCallback == NULL) + { + huart->ErrorCode |= HAL_UART_ERROR_INVALID_CALLBACK; + + return HAL_ERROR; + } + + /* Process locked */ + __HAL_LOCK(huart); + + if (huart->gState == HAL_UART_STATE_READY) + { + huart->RxEventCallback = pCallback; + } + else + { + huart->ErrorCode |= HAL_UART_ERROR_INVALID_CALLBACK; + + status = HAL_ERROR; + } + + /* Release Lock */ + __HAL_UNLOCK(huart); + + return status; +} + +/** + * @brief UnRegister the UART Rx Event Callback + * UART Rx Event Callback is redirected to the weak HAL_UARTEx_RxEventCallback() predefined callback + * @param huart Uart handle + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_UnRegisterRxEventCallback(UART_HandleTypeDef *huart) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Process locked */ + __HAL_LOCK(huart); + + if (huart->gState == HAL_UART_STATE_READY) + { + huart->RxEventCallback = HAL_UARTEx_RxEventCallback; /* Legacy weak UART Rx Event Callback */ + } + else + { + huart->ErrorCode |= HAL_UART_ERROR_INVALID_CALLBACK; + + status = HAL_ERROR; + } + + /* Release Lock */ + __HAL_UNLOCK(huart); + return status; +} + +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + +/** + * @} + */ + +/** @defgroup UART_Exported_Functions_Group2 IO operation functions + * @brief UART Transmit/Receive functions + * +@verbatim + =============================================================================== + ##### IO operation functions ##### + =============================================================================== + This subsection provides a set of functions allowing to manage the UART asynchronous + and Half duplex data transfers. + + (#) There are two mode 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. + (+) Non-Blocking mode: The communication is performed using Interrupts + or DMA, These API's return the HAL status. + The end of the data processing will be indicated through the + dedicated UART IRQ when using Interrupt mode or the DMA IRQ when + using DMA mode. + The HAL_UART_TxCpltCallback(), HAL_UART_RxCpltCallback() user callbacks + will be executed respectively at the end of the transmit or Receive process + The HAL_UART_ErrorCallback()user callback will be executed when a communication error is detected + + (#) Blocking mode API's are : + (+) HAL_UART_Transmit() + (+) HAL_UART_Receive() + + (#) Non-Blocking mode API's with Interrupt are : + (+) HAL_UART_Transmit_IT() + (+) HAL_UART_Receive_IT() + (+) HAL_UART_IRQHandler() + + (#) Non-Blocking mode API's with DMA are : + (+) HAL_UART_Transmit_DMA() + (+) HAL_UART_Receive_DMA() + (+) HAL_UART_DMAPause() + (+) HAL_UART_DMAResume() + (+) HAL_UART_DMAStop() + + (#) A set of Transfer Complete Callbacks are provided in Non_Blocking mode: + (+) HAL_UART_TxHalfCpltCallback() + (+) HAL_UART_TxCpltCallback() + (+) HAL_UART_RxHalfCpltCallback() + (+) HAL_UART_RxCpltCallback() + (+) HAL_UART_ErrorCallback() + + (#) Non-Blocking mode transfers could be aborted using Abort API's : + (+) HAL_UART_Abort() + (+) HAL_UART_AbortTransmit() + (+) HAL_UART_AbortReceive() + (+) HAL_UART_Abort_IT() + (+) HAL_UART_AbortTransmit_IT() + (+) HAL_UART_AbortReceive_IT() + + (#) For Abort services based on interrupts (HAL_UART_Abortxxx_IT), a set of Abort Complete Callbacks are provided: + (+) HAL_UART_AbortCpltCallback() + (+) HAL_UART_AbortTransmitCpltCallback() + (+) HAL_UART_AbortReceiveCpltCallback() + + (#) A Rx Event Reception Callback (Rx event notification) is available for Non_Blocking modes of enhanced + reception services: + (+) HAL_UARTEx_RxEventCallback() + + (#) In Non-Blocking mode transfers, possible errors are split into 2 categories. + Errors are handled as follows : + (+) Error is considered as Recoverable and non blocking : Transfer could go till end, but error severity is + to be evaluated by user : this concerns Frame Error, Parity Error or Noise Error + in Interrupt mode reception . + Received character is then retrieved and stored in Rx buffer, Error code is set to allow user + to identify error type, and HAL_UART_ErrorCallback() user callback is executed. + Transfer is kept ongoing on UART side. + If user wants to abort it, Abort services should be called by user. + (+) Error is considered as Blocking : Transfer could not be completed properly and is aborted. + This concerns Overrun Error In Interrupt mode reception and all errors in DMA mode. + Error code is set to allow user to identify error type, and HAL_UART_ErrorCallback() + user callback is executed. + + -@- In the Half duplex communication, it is forbidden to run the transmit + and receive process in parallel, the UART state HAL_UART_STATE_BUSY_TX_RX can't be useful. + +@endverbatim + * @{ + */ + +/** + * @brief Send an amount of data in blocking mode. + * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), + * the sent data is handled as a set of u16. In this case, Size must indicate the number + * of u16 provided through pData. + * @note When FIFO mode is enabled, writing a data in the TDR register adds one + * data to the TXFIFO. Write operations to the TDR register are performed + * when TXFNF flag is set. From hardware perspective, TXFNF flag and + * TXE are mapped on the same bit-field. + * @param huart UART handle. + * @param pData Pointer to data buffer (u8 or u16 data elements). + * @param Size Amount of data elements (u8 or u16) to be sent. + * @param Timeout Timeout duration. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, const uint8_t *pData, uint16_t Size, uint32_t Timeout) +{ + const uint8_t *pdata8bits; + const uint16_t *pdata16bits; + uint32_t tickstart; + + /* Check that a Tx process is not already ongoing */ + if (huart->gState == HAL_UART_STATE_READY) + { + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + huart->ErrorCode = HAL_UART_ERROR_NONE; + huart->gState = HAL_UART_STATE_BUSY_TX; + + /* Init tickstart for timeout management */ + tickstart = HAL_GetTick(); + + huart->TxXferSize = Size; + huart->TxXferCount = Size; + + /* In case of 9bits/No Parity transfer, pData needs to be handled as a uint16_t pointer */ + if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE)) + { + pdata8bits = NULL; + pdata16bits = (const uint16_t *) pData; + } + else + { + pdata8bits = pData; + pdata16bits = NULL; + } + + while (huart->TxXferCount > 0U) + { + if (UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK) + { + + huart->gState = HAL_UART_STATE_READY; + + return HAL_TIMEOUT; + } + if (pdata8bits == NULL) + { + huart->Instance->TDR = (uint16_t)(*pdata16bits & 0x01FFU); + pdata16bits++; + } + else + { + huart->Instance->TDR = (uint8_t)(*pdata8bits & 0xFFU); + pdata8bits++; + } + huart->TxXferCount--; + } + + if (UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TC, RESET, tickstart, Timeout) != HAL_OK) + { + huart->gState = HAL_UART_STATE_READY; + + return HAL_TIMEOUT; + } + + /* At end of Tx process, restore huart->gState to Ready */ + huart->gState = HAL_UART_STATE_READY; + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Receive an amount of data in blocking mode. + * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), + * the received data is handled as a set of u16. In this case, Size must indicate the number + * of u16 available through pData. + * @note When FIFO mode is enabled, the RXFNE flag is set as long as the RXFIFO + * is not empty. Read operations from the RDR register are performed when + * RXFNE flag is set. From hardware perspective, RXFNE flag and + * RXNE are mapped on the same bit-field. + * @param huart UART handle. + * @param pData Pointer to data buffer (u8 or u16 data elements). + * @param Size Amount of data elements (u8 or u16) to be received. + * @param Timeout Timeout duration. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout) +{ + uint8_t *pdata8bits; + uint16_t *pdata16bits; + uint16_t uhMask; + uint32_t tickstart; + + /* Check that a Rx process is not already ongoing */ + if (huart->RxState == HAL_UART_STATE_READY) + { + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + huart->ErrorCode = HAL_UART_ERROR_NONE; + huart->RxState = HAL_UART_STATE_BUSY_RX; + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + /* Init tickstart for timeout management */ + tickstart = HAL_GetTick(); + + huart->RxXferSize = Size; + huart->RxXferCount = Size; + + /* Computation of UART mask to apply to RDR register */ + UART_MASK_COMPUTATION(huart); + uhMask = huart->Mask; + + /* In case of 9bits/No Parity transfer, pRxData needs to be handled as a uint16_t pointer */ + if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE)) + { + pdata8bits = NULL; + pdata16bits = (uint16_t *) pData; + } + else + { + pdata8bits = pData; + pdata16bits = NULL; + } + + /* as long as data have to be received */ + while (huart->RxXferCount > 0U) + { + if (UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXNE, RESET, tickstart, Timeout) != HAL_OK) + { + huart->RxState = HAL_UART_STATE_READY; + + return HAL_TIMEOUT; + } + if (pdata8bits == NULL) + { + *pdata16bits = (uint16_t)(huart->Instance->RDR & uhMask); + pdata16bits++; + } + else + { + *pdata8bits = (uint8_t)(huart->Instance->RDR & (uint8_t)uhMask); + pdata8bits++; + } + huart->RxXferCount--; + } + + /* At end of Rx process, restore huart->RxState to Ready */ + huart->RxState = HAL_UART_STATE_READY; + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Send an amount of data in interrupt mode. + * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), + * the sent data is handled as a set of u16. In this case, Size must indicate the number + * of u16 provided through pData. + * @param huart UART handle. + * @param pData Pointer to data buffer (u8 or u16 data elements). + * @param Size Amount of data elements (u8 or u16) to be sent. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, const uint8_t *pData, uint16_t Size) +{ + /* Check that a Tx process is not already ongoing */ + if (huart->gState == HAL_UART_STATE_READY) + { + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + huart->pTxBuffPtr = pData; + huart->TxXferSize = Size; + huart->TxXferCount = Size; + huart->TxISR = NULL; + + huart->ErrorCode = HAL_UART_ERROR_NONE; + huart->gState = HAL_UART_STATE_BUSY_TX; + + /* Configure Tx interrupt processing */ + if (huart->FifoMode == UART_FIFOMODE_ENABLE) + { + /* Set the Tx ISR function pointer according to the data word length */ + if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE)) + { + huart->TxISR = UART_TxISR_16BIT_FIFOEN; + } + else + { + huart->TxISR = UART_TxISR_8BIT_FIFOEN; + } + + /* Enable the TX FIFO threshold interrupt */ + ATOMIC_SET_BIT(huart->Instance->CR3, USART_CR3_TXFTIE); + } + else + { + /* Set the Tx ISR function pointer according to the data word length */ + if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE)) + { + huart->TxISR = UART_TxISR_16BIT; + } + else + { + huart->TxISR = UART_TxISR_8BIT; + } + + /* Enable the Transmit Data Register Empty interrupt */ + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_TXEIE_TXFNFIE); + } + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Receive an amount of data in interrupt mode. + * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), + * the received data is handled as a set of u16. In this case, Size must indicate the number + * of u16 available through pData. + * @param huart UART handle. + * @param pData Pointer to data buffer (u8 or u16 data elements). + * @param Size Amount of data elements (u8 or u16) to be received. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size) +{ + /* Check that a Rx process is not already ongoing */ + if (huart->RxState == HAL_UART_STATE_READY) + { + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + /* Set Reception type to Standard reception */ + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + if (!(IS_LPUART_INSTANCE(huart->Instance))) + { + /* Check that USART RTOEN bit is set */ + if (READ_BIT(huart->Instance->CR2, USART_CR2_RTOEN) != 0U) + { + /* Enable the UART Receiver Timeout Interrupt */ + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_RTOIE); + } + } + + return (UART_Start_Receive_IT(huart, pData, Size)); + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Send an amount of data in DMA mode. + * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), + * the sent data is handled as a set of u16. In this case, Size must indicate the number + * of u16 provided through pData. + * @param huart UART handle. + * @param pData Pointer to data buffer (u8 or u16 data elements). + * @param Size Amount of data elements (u8 or u16) to be sent. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, const uint8_t *pData, uint16_t Size) +{ + /* Check that a Tx process is not already ongoing */ + if (huart->gState == HAL_UART_STATE_READY) + { + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + huart->pTxBuffPtr = pData; + huart->TxXferSize = Size; + huart->TxXferCount = Size; + + huart->ErrorCode = HAL_UART_ERROR_NONE; + huart->gState = HAL_UART_STATE_BUSY_TX; + + if (huart->hdmatx != NULL) + { + /* Set the UART DMA transfer complete callback */ + huart->hdmatx->XferCpltCallback = UART_DMATransmitCplt; + + /* Set the UART DMA Half transfer complete callback */ + huart->hdmatx->XferHalfCpltCallback = UART_DMATxHalfCplt; + + /* Set the DMA error callback */ + huart->hdmatx->XferErrorCallback = UART_DMAError; + + /* Set the DMA abort callback */ + huart->hdmatx->XferAbortCallback = NULL; + + /* Enable the UART transmit DMA channel */ + if (HAL_DMA_Start_IT(huart->hdmatx, (uint32_t)huart->pTxBuffPtr, (uint32_t)&huart->Instance->TDR, Size) != HAL_OK) + { + /* Set error code to DMA */ + huart->ErrorCode = HAL_UART_ERROR_DMA; + + /* Restore huart->gState to ready */ + huart->gState = HAL_UART_STATE_READY; + + return HAL_ERROR; + } + } + /* Clear the TC flag in the ICR register */ + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_TCF); + + /* Enable the DMA transfer for transmit request by setting the DMAT bit + in the UART CR3 register */ + ATOMIC_SET_BIT(huart->Instance->CR3, USART_CR3_DMAT); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Receive an amount of data in DMA mode. + * @note When the UART parity is enabled (PCE = 1), the received data contain + * the parity bit (MSB position). + * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), + * the received data is handled as a set of u16. In this case, Size must indicate the number + * of u16 available through pData. + * @param huart UART handle. + * @param pData Pointer to data buffer (u8 or u16 data elements). + * @param Size Amount of data elements (u8 or u16) to be received. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size) +{ + /* Check that a Rx process is not already ongoing */ + if (huart->RxState == HAL_UART_STATE_READY) + { + if ((pData == NULL) || (Size == 0U)) + { + return HAL_ERROR; + } + + /* Set Reception type to Standard reception */ + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + if (!(IS_LPUART_INSTANCE(huart->Instance))) + { + /* Check that USART RTOEN bit is set */ + if (READ_BIT(huart->Instance->CR2, USART_CR2_RTOEN) != 0U) + { + /* Enable the UART Receiver Timeout Interrupt */ + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_RTOIE); + } + } + + return (UART_Start_Receive_DMA(huart, pData, Size)); + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief Pause the DMA Transfer. + * @param huart UART handle. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart) +{ + const HAL_UART_StateTypeDef gstate = huart->gState; + const HAL_UART_StateTypeDef rxstate = huart->RxState; + + if ((HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT)) && + (gstate == HAL_UART_STATE_BUSY_TX)) + { + /* Disable the UART DMA Tx request */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT); + } + if ((HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) && + (rxstate == HAL_UART_STATE_BUSY_RX)) + { + /* Disable PE and ERR (Frame error, noise error, overrun error) interrupts */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_PEIE); + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE); + + /* Disable the UART DMA Rx request */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR); + } + + return HAL_OK; +} + +/** + * @brief Resume the DMA Transfer. + * @param huart UART handle. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart) +{ + if (huart->gState == HAL_UART_STATE_BUSY_TX) + { + /* Enable the UART DMA Tx request */ + ATOMIC_SET_BIT(huart->Instance->CR3, USART_CR3_DMAT); + } + if (huart->RxState == HAL_UART_STATE_BUSY_RX) + { + /* Clear the Overrun flag before resuming the Rx transfer */ + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF); + + /* Re-enable PE and ERR (Frame error, noise error, overrun error) interrupts */ + if (huart->Init.Parity != UART_PARITY_NONE) + { + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_PEIE); + } + ATOMIC_SET_BIT(huart->Instance->CR3, USART_CR3_EIE); + + /* Enable the UART DMA Rx request */ + ATOMIC_SET_BIT(huart->Instance->CR3, USART_CR3_DMAR); + } + + return HAL_OK; +} + +/** + * @brief Stop the DMA Transfer. + * @param huart UART handle. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_DMAStop(UART_HandleTypeDef *huart) +{ + /* The Lock is not implemented on this API to allow the user application + to call the HAL UART API under callbacks HAL_UART_TxCpltCallback() / HAL_UART_RxCpltCallback() / + HAL_UART_TxHalfCpltCallback / HAL_UART_RxHalfCpltCallback: + indeed, when HAL_DMA_Abort() API is called, the DMA TX/RX Transfer or Half Transfer complete + interrupt is generated if the DMA transfer interruption occurs at the middle or at the end of + the stream and the corresponding call back is executed. */ + + const HAL_UART_StateTypeDef gstate = huart->gState; + const HAL_UART_StateTypeDef rxstate = huart->RxState; + + /* Stop UART DMA Tx request if ongoing */ + if ((HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT)) && + (gstate == HAL_UART_STATE_BUSY_TX)) + { + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT); + + /* Abort the UART DMA Tx channel */ + if (huart->hdmatx != NULL) + { + if (HAL_DMA_Abort(huart->hdmatx) != HAL_OK) + { + if (HAL_DMA_GetError(huart->hdmatx) == HAL_DMA_ERROR_TIMEOUT) + { + /* Set error code to DMA */ + huart->ErrorCode = HAL_UART_ERROR_DMA; + + return HAL_TIMEOUT; + } + } + } + + UART_EndTxTransfer(huart); + } + + /* Stop UART DMA Rx request if ongoing */ + if ((HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) && + (rxstate == HAL_UART_STATE_BUSY_RX)) + { + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR); + + /* Abort the UART DMA Rx channel */ + if (huart->hdmarx != NULL) + { + if (HAL_DMA_Abort(huart->hdmarx) != HAL_OK) + { + if (HAL_DMA_GetError(huart->hdmarx) == HAL_DMA_ERROR_TIMEOUT) + { + /* Set error code to DMA */ + huart->ErrorCode = HAL_UART_ERROR_DMA; + + return HAL_TIMEOUT; + } + } + } + + UART_EndRxTransfer(huart); + } + + return HAL_OK; +} + +/** + * @brief Abort ongoing transfers (blocking mode). + * @param huart UART handle. + * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. + * This procedure performs following operations : + * - Disable UART Interrupts (Tx and Rx) + * - Disable the DMA transfer in the peripheral register (if enabled) + * - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode) + * - Set handle State to READY + * @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_Abort(UART_HandleTypeDef *huart) +{ + /* Disable TXE, TC, RXNE, PE, RXFT, TXFT and ERR (Frame error, noise error, overrun error) interrupts */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE_RXFNEIE | USART_CR1_PEIE | + USART_CR1_TXEIE_TXFNFIE | USART_CR1_TCIE)); + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE | USART_CR3_RXFTIE | USART_CR3_TXFTIE); + + /* If Reception till IDLE event was ongoing, disable IDLEIE interrupt */ + if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE) + { + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_IDLEIE)); + } + + /* Abort the UART DMA Tx channel if enabled */ + if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT)) + { + /* Disable the UART DMA Tx request if enabled */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT); + + /* Abort the UART DMA Tx channel : use blocking DMA Abort API (no callback) */ + if (huart->hdmatx != NULL) + { + /* Set the UART DMA Abort callback to Null. + No call back execution at end of DMA abort procedure */ + huart->hdmatx->XferAbortCallback = NULL; + + if (HAL_DMA_Abort(huart->hdmatx) != HAL_OK) + { + if (HAL_DMA_GetError(huart->hdmatx) == HAL_DMA_ERROR_TIMEOUT) + { + /* Set error code to DMA */ + huart->ErrorCode = HAL_UART_ERROR_DMA; + + return HAL_TIMEOUT; + } + } + } + } + + /* Abort the UART DMA Rx channel if enabled */ + if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) + { + /* Disable the UART DMA Rx request if enabled */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR); + + /* Abort the UART DMA Rx channel : use blocking DMA Abort API (no callback) */ + if (huart->hdmarx != NULL) + { + /* Set the UART DMA Abort callback to Null. + No call back execution at end of DMA abort procedure */ + huart->hdmarx->XferAbortCallback = NULL; + + if (HAL_DMA_Abort(huart->hdmarx) != HAL_OK) + { + if (HAL_DMA_GetError(huart->hdmarx) == HAL_DMA_ERROR_TIMEOUT) + { + /* Set error code to DMA */ + huart->ErrorCode = HAL_UART_ERROR_DMA; + + return HAL_TIMEOUT; + } + } + } + } + + /* Reset Tx and Rx transfer counters */ + huart->TxXferCount = 0U; + huart->RxXferCount = 0U; + + /* Clear the Error flags in the ICR register */ + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF | UART_CLEAR_NEF | UART_CLEAR_PEF | UART_CLEAR_FEF); + + /* Flush the whole TX FIFO (if needed) */ + if (huart->FifoMode == UART_FIFOMODE_ENABLE) + { + __HAL_UART_SEND_REQ(huart, UART_TXDATA_FLUSH_REQUEST); + } + + /* Discard the received data */ + __HAL_UART_SEND_REQ(huart, UART_RXDATA_FLUSH_REQUEST); + + /* Restore huart->gState and huart->RxState to Ready */ + huart->gState = HAL_UART_STATE_READY; + huart->RxState = HAL_UART_STATE_READY; + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + huart->ErrorCode = HAL_UART_ERROR_NONE; + + return HAL_OK; +} + +/** + * @brief Abort ongoing Transmit transfer (blocking mode). + * @param huart UART handle. + * @note This procedure could be used for aborting any ongoing Tx transfer started in Interrupt or DMA mode. + * This procedure performs following operations : + * - Disable UART Interrupts (Tx) + * - Disable the DMA transfer in the peripheral register (if enabled) + * - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode) + * - Set handle State to READY + * @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_AbortTransmit(UART_HandleTypeDef *huart) +{ + /* Disable TCIE, TXEIE and TXFTIE interrupts */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TCIE | USART_CR1_TXEIE_TXFNFIE)); + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_TXFTIE); + + /* Abort the UART DMA Tx channel if enabled */ + if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT)) + { + /* Disable the UART DMA Tx request if enabled */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT); + + /* Abort the UART DMA Tx channel : use blocking DMA Abort API (no callback) */ + if (huart->hdmatx != NULL) + { + /* Set the UART DMA Abort callback to Null. + No call back execution at end of DMA abort procedure */ + huart->hdmatx->XferAbortCallback = NULL; + + if (HAL_DMA_Abort(huart->hdmatx) != HAL_OK) + { + if (HAL_DMA_GetError(huart->hdmatx) == HAL_DMA_ERROR_TIMEOUT) + { + /* Set error code to DMA */ + huart->ErrorCode = HAL_UART_ERROR_DMA; + + return HAL_TIMEOUT; + } + } + } + } + + /* Reset Tx transfer counter */ + huart->TxXferCount = 0U; + + /* Flush the whole TX FIFO (if needed) */ + if (huart->FifoMode == UART_FIFOMODE_ENABLE) + { + __HAL_UART_SEND_REQ(huart, UART_TXDATA_FLUSH_REQUEST); + } + + /* Restore huart->gState to Ready */ + huart->gState = HAL_UART_STATE_READY; + + return HAL_OK; +} + +/** + * @brief Abort ongoing Receive transfer (blocking mode). + * @param huart UART handle. + * @note This procedure could be used for aborting any ongoing Rx transfer started in Interrupt or DMA mode. + * This procedure performs following operations : + * - Disable UART Interrupts (Rx) + * - Disable the DMA transfer in the peripheral register (if enabled) + * - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode) + * - Set handle State to READY + * @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_AbortReceive(UART_HandleTypeDef *huart) +{ + /* Disable PEIE, EIE, RXNEIE and RXFTIE interrupts */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_PEIE | USART_CR1_RXNEIE_RXFNEIE)); + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE | USART_CR3_RXFTIE); + + /* If Reception till IDLE event was ongoing, disable IDLEIE interrupt */ + if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE) + { + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_IDLEIE)); + } + + /* Abort the UART DMA Rx channel if enabled */ + if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) + { + /* Disable the UART DMA Rx request if enabled */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR); + + /* Abort the UART DMA Rx channel : use blocking DMA Abort API (no callback) */ + if (huart->hdmarx != NULL) + { + /* Set the UART DMA Abort callback to Null. + No call back execution at end of DMA abort procedure */ + huart->hdmarx->XferAbortCallback = NULL; + + if (HAL_DMA_Abort(huart->hdmarx) != HAL_OK) + { + if (HAL_DMA_GetError(huart->hdmarx) == HAL_DMA_ERROR_TIMEOUT) + { + /* Set error code to DMA */ + huart->ErrorCode = HAL_UART_ERROR_DMA; + + return HAL_TIMEOUT; + } + } + } + } + + /* Reset Rx transfer counter */ + huart->RxXferCount = 0U; + + /* Clear the Error flags in the ICR register */ + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF | UART_CLEAR_NEF | UART_CLEAR_PEF | UART_CLEAR_FEF); + + /* Discard the received data */ + __HAL_UART_SEND_REQ(huart, UART_RXDATA_FLUSH_REQUEST); + + /* Restore huart->RxState to Ready */ + huart->RxState = HAL_UART_STATE_READY; + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + return HAL_OK; +} + +/** + * @brief Abort ongoing transfers (Interrupt mode). + * @param huart UART handle. + * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. + * This procedure performs following operations : + * - Disable UART Interrupts (Tx and Rx) + * - Disable the DMA transfer in the peripheral register (if enabled) + * - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode) + * - Set handle State to READY + * - At abort completion, call user abort complete callback + * @note This procedure is executed in Interrupt mode, meaning that abort procedure could be + * considered as completed only when user abort complete callback is executed (not when exiting function). + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_Abort_IT(UART_HandleTypeDef *huart) +{ + uint32_t abortcplt = 1U; + + /* Disable interrupts */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_PEIE | USART_CR1_TCIE | USART_CR1_RXNEIE_RXFNEIE | + USART_CR1_TXEIE_TXFNFIE)); + ATOMIC_CLEAR_BIT(huart->Instance->CR3, (USART_CR3_EIE | USART_CR3_RXFTIE | USART_CR3_TXFTIE)); + + /* If Reception till IDLE event was ongoing, disable IDLEIE interrupt */ + if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE) + { + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_IDLEIE)); + } + + /* If DMA Tx and/or DMA Rx Handles are associated to UART Handle, DMA Abort complete callbacks should be initialised + before any call to DMA Abort functions */ + /* DMA Tx Handle is valid */ + if (huart->hdmatx != NULL) + { + /* Set DMA Abort Complete callback if UART DMA Tx request if enabled. + Otherwise, set it to NULL */ + if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT)) + { + huart->hdmatx->XferAbortCallback = UART_DMATxAbortCallback; + } + else + { + huart->hdmatx->XferAbortCallback = NULL; + } + } + /* DMA Rx Handle is valid */ + if (huart->hdmarx != NULL) + { + /* Set DMA Abort Complete callback if UART DMA Rx request if enabled. + Otherwise, set it to NULL */ + if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) + { + huart->hdmarx->XferAbortCallback = UART_DMARxAbortCallback; + } + else + { + huart->hdmarx->XferAbortCallback = NULL; + } + } + + /* Abort the UART DMA Tx channel if enabled */ + if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT)) + { + /* Disable DMA Tx at UART level */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT); + + /* Abort the UART DMA Tx channel : use non blocking DMA Abort API (callback) */ + if (huart->hdmatx != NULL) + { + /* UART Tx DMA Abort callback has already been initialised : + will lead to call HAL_UART_AbortCpltCallback() at end of DMA abort procedure */ + + /* Abort DMA TX */ + if (HAL_DMA_Abort_IT(huart->hdmatx) != HAL_OK) + { + huart->hdmatx->XferAbortCallback = NULL; + } + else + { + abortcplt = 0U; + } + } + } + + /* Abort the UART DMA Rx channel if enabled */ + if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) + { + /* Disable the UART DMA Rx request if enabled */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR); + + /* Abort the UART DMA Rx channel : use non blocking DMA Abort API (callback) */ + if (huart->hdmarx != NULL) + { + /* UART Rx DMA Abort callback has already been initialised : + will lead to call HAL_UART_AbortCpltCallback() at end of DMA abort procedure */ + + /* Abort DMA RX */ + if (HAL_DMA_Abort_IT(huart->hdmarx) != HAL_OK) + { + huart->hdmarx->XferAbortCallback = NULL; + abortcplt = 1U; + } + else + { + abortcplt = 0U; + } + } + } + + /* if no DMA abort complete callback execution is required => call user Abort Complete callback */ + if (abortcplt == 1U) + { + /* Reset Tx and Rx transfer counters */ + huart->TxXferCount = 0U; + huart->RxXferCount = 0U; + + /* Clear ISR function pointers */ + huart->RxISR = NULL; + huart->TxISR = NULL; + + /* Reset errorCode */ + huart->ErrorCode = HAL_UART_ERROR_NONE; + + /* Clear the Error flags in the ICR register */ + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF | UART_CLEAR_NEF | UART_CLEAR_PEF | UART_CLEAR_FEF); + + /* Flush the whole TX FIFO (if needed) */ + if (huart->FifoMode == UART_FIFOMODE_ENABLE) + { + __HAL_UART_SEND_REQ(huart, UART_TXDATA_FLUSH_REQUEST); + } + + /* Discard the received data */ + __HAL_UART_SEND_REQ(huart, UART_RXDATA_FLUSH_REQUEST); + + /* Restore huart->gState and huart->RxState to Ready */ + huart->gState = HAL_UART_STATE_READY; + huart->RxState = HAL_UART_STATE_READY; + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + /* As no DMA to be aborted, call directly user Abort complete callback */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /* Call registered Abort complete callback */ + huart->AbortCpltCallback(huart); +#else + /* Call legacy weak Abort complete callback */ + HAL_UART_AbortCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + } + + return HAL_OK; +} + +/** + * @brief Abort ongoing Transmit transfer (Interrupt mode). + * @param huart UART handle. + * @note This procedure could be used for aborting any ongoing Tx transfer started in Interrupt or DMA mode. + * This procedure performs following operations : + * - Disable UART Interrupts (Tx) + * - Disable the DMA transfer in the peripheral register (if enabled) + * - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode) + * - Set handle State to READY + * - At abort completion, call user abort complete callback + * @note This procedure is executed in Interrupt mode, meaning that abort procedure could be + * considered as completed only when user abort complete callback is executed (not when exiting function). + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_AbortTransmit_IT(UART_HandleTypeDef *huart) +{ + /* Disable interrupts */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TCIE | USART_CR1_TXEIE_TXFNFIE)); + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_TXFTIE); + + /* Abort the UART DMA Tx channel if enabled */ + if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT)) + { + /* Disable the UART DMA Tx request if enabled */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT); + + /* Abort the UART DMA Tx channel : use non blocking DMA Abort API (callback) */ + if (huart->hdmatx != NULL) + { + /* Set the UART DMA Abort callback : + will lead to call HAL_UART_AbortCpltCallback() at end of DMA abort procedure */ + huart->hdmatx->XferAbortCallback = UART_DMATxOnlyAbortCallback; + + /* Abort DMA TX */ + if (HAL_DMA_Abort_IT(huart->hdmatx) != HAL_OK) + { + /* Call Directly huart->hdmatx->XferAbortCallback function in case of error */ + huart->hdmatx->XferAbortCallback(huart->hdmatx); + } + } + else + { + /* Reset Tx transfer counter */ + huart->TxXferCount = 0U; + + /* Clear TxISR function pointers */ + huart->TxISR = NULL; + + /* Restore huart->gState to Ready */ + huart->gState = HAL_UART_STATE_READY; + + /* As no DMA to be aborted, call directly user Abort complete callback */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /* Call registered Abort Transmit Complete Callback */ + huart->AbortTransmitCpltCallback(huart); +#else + /* Call legacy weak Abort Transmit Complete Callback */ + HAL_UART_AbortTransmitCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + } + } + else + { + /* Reset Tx transfer counter */ + huart->TxXferCount = 0U; + + /* Clear TxISR function pointers */ + huart->TxISR = NULL; + + /* Flush the whole TX FIFO (if needed) */ + if (huart->FifoMode == UART_FIFOMODE_ENABLE) + { + __HAL_UART_SEND_REQ(huart, UART_TXDATA_FLUSH_REQUEST); + } + + /* Restore huart->gState to Ready */ + huart->gState = HAL_UART_STATE_READY; + + /* As no DMA to be aborted, call directly user Abort complete callback */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /* Call registered Abort Transmit Complete Callback */ + huart->AbortTransmitCpltCallback(huart); +#else + /* Call legacy weak Abort Transmit Complete Callback */ + HAL_UART_AbortTransmitCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + } + + return HAL_OK; +} + +/** + * @brief Abort ongoing Receive transfer (Interrupt mode). + * @param huart UART handle. + * @note This procedure could be used for aborting any ongoing Rx transfer started in Interrupt or DMA mode. + * This procedure performs following operations : + * - Disable UART Interrupts (Rx) + * - Disable the DMA transfer in the peripheral register (if enabled) + * - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode) + * - Set handle State to READY + * - At abort completion, call user abort complete callback + * @note This procedure is executed in Interrupt mode, meaning that abort procedure could be + * considered as completed only when user abort complete callback is executed (not when exiting function). + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_AbortReceive_IT(UART_HandleTypeDef *huart) +{ + /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_PEIE | USART_CR1_RXNEIE_RXFNEIE)); + ATOMIC_CLEAR_BIT(huart->Instance->CR3, (USART_CR3_EIE | USART_CR3_RXFTIE)); + + /* If Reception till IDLE event was ongoing, disable IDLEIE interrupt */ + if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE) + { + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_IDLEIE)); + } + + /* Abort the UART DMA Rx channel if enabled */ + if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) + { + /* Disable the UART DMA Rx request if enabled */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR); + + /* Abort the UART DMA Rx channel : use non blocking DMA Abort API (callback) */ + if (huart->hdmarx != NULL) + { + /* Set the UART DMA Abort callback : + will lead to call HAL_UART_AbortCpltCallback() at end of DMA abort procedure */ + huart->hdmarx->XferAbortCallback = UART_DMARxOnlyAbortCallback; + + /* Abort DMA RX */ + if (HAL_DMA_Abort_IT(huart->hdmarx) != HAL_OK) + { + /* Call Directly huart->hdmarx->XferAbortCallback function in case of error */ + huart->hdmarx->XferAbortCallback(huart->hdmarx); + } + } + else + { + /* Reset Rx transfer counter */ + huart->RxXferCount = 0U; + + /* Clear RxISR function pointer */ + huart->pRxBuffPtr = NULL; + + /* Clear the Error flags in the ICR register */ + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF | UART_CLEAR_NEF | UART_CLEAR_PEF | UART_CLEAR_FEF); + + /* Discard the received data */ + __HAL_UART_SEND_REQ(huart, UART_RXDATA_FLUSH_REQUEST); + + /* Restore huart->RxState to Ready */ + huart->RxState = HAL_UART_STATE_READY; + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + /* As no DMA to be aborted, call directly user Abort complete callback */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /* Call registered Abort Receive Complete Callback */ + huart->AbortReceiveCpltCallback(huart); +#else + /* Call legacy weak Abort Receive Complete Callback */ + HAL_UART_AbortReceiveCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + } + } + else + { + /* Reset Rx transfer counter */ + huart->RxXferCount = 0U; + + /* Clear RxISR function pointer */ + huart->pRxBuffPtr = NULL; + + /* Clear the Error flags in the ICR register */ + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF | UART_CLEAR_NEF | UART_CLEAR_PEF | UART_CLEAR_FEF); + + /* Restore huart->RxState to Ready */ + huart->RxState = HAL_UART_STATE_READY; + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + /* As no DMA to be aborted, call directly user Abort complete callback */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /* Call registered Abort Receive Complete Callback */ + huart->AbortReceiveCpltCallback(huart); +#else + /* Call legacy weak Abort Receive Complete Callback */ + HAL_UART_AbortReceiveCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + } + + return HAL_OK; +} + +/** + * @brief Handle UART interrupt request. + * @param huart UART handle. + * @retval None + */ +void HAL_UART_IRQHandler(UART_HandleTypeDef *huart) +{ + uint32_t isrflags = READ_REG(huart->Instance->ISR); + uint32_t cr1its = READ_REG(huart->Instance->CR1); + uint32_t cr3its = READ_REG(huart->Instance->CR3); + + uint32_t errorflags; + uint32_t errorcode; + + /* If no error occurs */ + errorflags = (isrflags & (uint32_t)(USART_ISR_PE | USART_ISR_FE | USART_ISR_ORE | USART_ISR_NE | USART_ISR_RTOF)); + if (errorflags == 0U) + { + /* UART in mode Receiver ---------------------------------------------------*/ + if (((isrflags & USART_ISR_RXNE_RXFNE) != 0U) + && (((cr1its & USART_CR1_RXNEIE_RXFNEIE) != 0U) + || ((cr3its & USART_CR3_RXFTIE) != 0U))) + { + if (huart->RxISR != NULL) + { + huart->RxISR(huart); + } + return; + } + } + + /* If some errors occur */ + if ((errorflags != 0U) + && ((((cr3its & (USART_CR3_RXFTIE | USART_CR3_EIE)) != 0U) + || ((cr1its & (USART_CR1_RXNEIE_RXFNEIE | USART_CR1_PEIE | USART_CR1_RTOIE)) != 0U)))) + { + /* UART parity error interrupt occurred -------------------------------------*/ + if (((isrflags & USART_ISR_PE) != 0U) && ((cr1its & USART_CR1_PEIE) != 0U)) + { + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_PEF); + + huart->ErrorCode |= HAL_UART_ERROR_PE; + } + + /* UART frame error interrupt occurred --------------------------------------*/ + if (((isrflags & USART_ISR_FE) != 0U) && ((cr3its & USART_CR3_EIE) != 0U)) + { + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_FEF); + + huart->ErrorCode |= HAL_UART_ERROR_FE; + } + + /* UART noise error interrupt occurred --------------------------------------*/ + if (((isrflags & USART_ISR_NE) != 0U) && ((cr3its & USART_CR3_EIE) != 0U)) + { + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_NEF); + + huart->ErrorCode |= HAL_UART_ERROR_NE; + } + + /* UART Over-Run interrupt occurred -----------------------------------------*/ + if (((isrflags & USART_ISR_ORE) != 0U) + && (((cr1its & USART_CR1_RXNEIE_RXFNEIE) != 0U) || + ((cr3its & (USART_CR3_RXFTIE | USART_CR3_EIE)) != 0U))) + { + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF); + + huart->ErrorCode |= HAL_UART_ERROR_ORE; + } + + /* UART Receiver Timeout interrupt occurred ---------------------------------*/ + if (((isrflags & USART_ISR_RTOF) != 0U) && ((cr1its & USART_CR1_RTOIE) != 0U)) + { + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_RTOF); + + huart->ErrorCode |= HAL_UART_ERROR_RTO; + } + + /* Call UART Error Call back function if need be ----------------------------*/ + if (huart->ErrorCode != HAL_UART_ERROR_NONE) + { + /* UART in mode Receiver --------------------------------------------------*/ + if (((isrflags & USART_ISR_RXNE_RXFNE) != 0U) + && (((cr1its & USART_CR1_RXNEIE_RXFNEIE) != 0U) + || ((cr3its & USART_CR3_RXFTIE) != 0U))) + { + if (huart->RxISR != NULL) + { + huart->RxISR(huart); + } + } + + /* If Error is to be considered as blocking : + - Receiver Timeout error in Reception + - Overrun error in Reception + - any error occurs in DMA mode reception + */ + errorcode = huart->ErrorCode; + if ((HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) || + ((errorcode & (HAL_UART_ERROR_RTO | HAL_UART_ERROR_ORE)) != 0U)) + { + /* Blocking error : transfer is aborted + Set the UART state ready to be able to start again the process, + Disable Rx Interrupts, and disable Rx DMA request, if ongoing */ + UART_EndRxTransfer(huart); + + /* Abort the UART DMA Rx channel if enabled */ + if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) + { + /* Disable the UART DMA Rx request if enabled */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR); + + /* Abort the UART DMA Rx channel */ + if (huart->hdmarx != NULL) + { + /* Set the UART DMA Abort callback : + will lead to call HAL_UART_ErrorCallback() at end of DMA abort procedure */ + huart->hdmarx->XferAbortCallback = UART_DMAAbortOnError; + + /* Abort DMA RX */ + if (HAL_DMA_Abort_IT(huart->hdmarx) != HAL_OK) + { + /* Call Directly huart->hdmarx->XferAbortCallback function in case of error */ + huart->hdmarx->XferAbortCallback(huart->hdmarx); + } + } + else + { + /* Call user error callback */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered error callback*/ + huart->ErrorCallback(huart); +#else + /*Call legacy weak error callback*/ + HAL_UART_ErrorCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + + } + } + else + { + /* Call user error callback */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered error callback*/ + huart->ErrorCallback(huart); +#else + /*Call legacy weak error callback*/ + HAL_UART_ErrorCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + } + } + else + { + /* Non Blocking error : transfer could go on. + Error is notified to user through user error callback */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered error callback*/ + huart->ErrorCallback(huart); +#else + /*Call legacy weak error callback*/ + HAL_UART_ErrorCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + huart->ErrorCode = HAL_UART_ERROR_NONE; + } + } + return; + + } /* End if some error occurs */ + + /* Check current reception Mode : + If Reception till IDLE event has been selected : */ + if ((huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE) + && ((isrflags & USART_ISR_IDLE) != 0U) + && ((cr1its & USART_ISR_IDLE) != 0U)) + { + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_IDLEF); + + /* Check if DMA mode is enabled in UART */ + if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) + { + /* DMA mode enabled */ + /* Check received length : If all expected data are received, do nothing, + (DMA cplt callback will be called). + Otherwise, if at least one data has already been received, IDLE event is to be notified to user */ + uint16_t nb_remaining_rx_data = (uint16_t) __HAL_DMA_GET_COUNTER(huart->hdmarx); + if ((nb_remaining_rx_data > 0U) + && (nb_remaining_rx_data < huart->RxXferSize)) + { + /* Reception is not complete */ + huart->RxXferCount = nb_remaining_rx_data; + + /* In Normal mode, end DMA xfer and HAL UART Rx process*/ + if (huart->hdmarx->Init.Mode != DMA_CIRCULAR) + { + /* Disable PE and ERR (Frame error, noise error, overrun error) interrupts */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_PEIE); + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE); + + /* Disable the DMA transfer for the receiver request by resetting the DMAR bit + in the UART CR3 register */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR); + + /* At end of Rx process, restore huart->RxState to Ready */ + huart->RxState = HAL_UART_STATE_READY; + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_IDLEIE); + + /* Last bytes received, so no need as the abort is immediate */ + (void)HAL_DMA_Abort(huart->hdmarx); + } + + /* Initialize type of RxEvent that correspond to RxEvent callback execution; + In this case, Rx Event type is Idle Event */ + huart->RxEventType = HAL_UART_RXEVENT_IDLE; + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Rx Event callback*/ + huart->RxEventCallback(huart, (huart->RxXferSize - huart->RxXferCount)); +#else + /*Call legacy weak Rx Event callback*/ + HAL_UARTEx_RxEventCallback(huart, (huart->RxXferSize - huart->RxXferCount)); +#endif /* (USE_HAL_UART_REGISTER_CALLBACKS) */ + } + return; + } + else + { + /* DMA mode not enabled */ + /* Check received length : If all expected data are received, do nothing. + Otherwise, if at least one data has already been received, IDLE event is to be notified to user */ + uint16_t nb_rx_data = huart->RxXferSize - huart->RxXferCount; + if ((huart->RxXferCount > 0U) + && (nb_rx_data > 0U)) + { + /* Disable the UART Parity Error Interrupt and RXNE interrupts */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE_RXFNEIE | USART_CR1_PEIE)); + + /* Disable the UART Error Interrupt:(Frame error, noise error, overrun error) and RX FIFO Threshold interrupt */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, (USART_CR3_EIE | USART_CR3_RXFTIE)); + + /* Rx process is completed, restore huart->RxState to Ready */ + huart->RxState = HAL_UART_STATE_READY; + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + /* Clear RxISR function pointer */ + huart->RxISR = NULL; + + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_IDLEIE); + + /* Initialize type of RxEvent that correspond to RxEvent callback execution; + In this case, Rx Event type is Idle Event */ + huart->RxEventType = HAL_UART_RXEVENT_IDLE; + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Rx complete callback*/ + huart->RxEventCallback(huart, nb_rx_data); +#else + /*Call legacy weak Rx Event callback*/ + HAL_UARTEx_RxEventCallback(huart, nb_rx_data); +#endif /* (USE_HAL_UART_REGISTER_CALLBACKS) */ + } + return; + } + } + + /* UART wakeup from Stop mode interrupt occurred ---------------------------*/ + if (((isrflags & USART_ISR_WUF) != 0U) && ((cr3its & USART_CR3_WUFIE) != 0U)) + { + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_WUF); + + /* UART Rx state is not reset as a reception process might be ongoing. + If UART handle state fields need to be reset to READY, this could be done in Wakeup callback */ + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /* Call registered Wakeup Callback */ + huart->WakeupCallback(huart); +#else + /* Call legacy weak Wakeup Callback */ + HAL_UARTEx_WakeupCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + return; + } + + /* UART in mode Transmitter ------------------------------------------------*/ + if (((isrflags & USART_ISR_TXE_TXFNF) != 0U) + && (((cr1its & USART_CR1_TXEIE_TXFNFIE) != 0U) + || ((cr3its & USART_CR3_TXFTIE) != 0U))) + { + if (huart->TxISR != NULL) + { + huart->TxISR(huart); + } + return; + } + + /* UART in mode Transmitter (transmission end) -----------------------------*/ + if (((isrflags & USART_ISR_TC) != 0U) && ((cr1its & USART_CR1_TCIE) != 0U)) + { + UART_EndTransmit_IT(huart); + return; + } + + /* UART TX Fifo Empty occurred ----------------------------------------------*/ + if (((isrflags & USART_ISR_TXFE) != 0U) && ((cr1its & USART_CR1_TXFEIE) != 0U)) + { +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /* Call registered Tx Fifo Empty Callback */ + huart->TxFifoEmptyCallback(huart); +#else + /* Call legacy weak Tx Fifo Empty Callback */ + HAL_UARTEx_TxFifoEmptyCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + return; + } + + /* UART RX Fifo Full occurred ----------------------------------------------*/ + if (((isrflags & USART_ISR_RXFF) != 0U) && ((cr1its & USART_CR1_RXFFIE) != 0U)) + { +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /* Call registered Rx Fifo Full Callback */ + huart->RxFifoFullCallback(huart); +#else + /* Call legacy weak Rx Fifo Full Callback */ + HAL_UARTEx_RxFifoFullCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + return; + } +} + +/** + * @brief Tx Transfer completed callback. + * @param huart UART handle. + * @retval None + */ +__weak void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_UART_TxCpltCallback can be implemented in the user file. + */ +} + +/** + * @brief Tx Half Transfer completed callback. + * @param huart UART handle. + * @retval None + */ +__weak void HAL_UART_TxHalfCpltCallback(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + + /* NOTE: This function should not be modified, when the callback is needed, + the HAL_UART_TxHalfCpltCallback can be implemented in the user file. + */ +} + +/** + * @brief Rx Transfer completed callback. + * @param huart UART handle. + * @retval None + */ +__weak void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_UART_RxCpltCallback can be implemented in the user file. + */ +} + +/** + * @brief Rx Half Transfer completed callback. + * @param huart UART handle. + * @retval None + */ +__weak void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + + /* NOTE: This function should not be modified, when the callback is needed, + the HAL_UART_RxHalfCpltCallback can be implemented in the user file. + */ +} + +/** + * @brief UART error callback. + * @param huart UART handle. + * @retval None + */ +__weak void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_UART_ErrorCallback can be implemented in the user file. + */ +} + +/** + * @brief UART Abort Complete callback. + * @param huart UART handle. + * @retval None + */ +__weak void HAL_UART_AbortCpltCallback(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_UART_AbortCpltCallback can be implemented in the user file. + */ +} + +/** + * @brief UART Abort Complete callback. + * @param huart UART handle. + * @retval None + */ +__weak void HAL_UART_AbortTransmitCpltCallback(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_UART_AbortTransmitCpltCallback can be implemented in the user file. + */ +} + +/** + * @brief UART Abort Receive Complete callback. + * @param huart UART handle. + * @retval None + */ +__weak void HAL_UART_AbortReceiveCpltCallback(UART_HandleTypeDef *huart) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_UART_AbortReceiveCpltCallback can be implemented in the user file. + */ +} + +/** + * @brief Reception Event Callback (Rx event notification called after use of advanced reception service). + * @param huart UART handle + * @param Size Number of data available in application reception buffer (indicates a position in + * reception buffer until which, data are available) + * @retval None + */ +__weak void HAL_UARTEx_RxEventCallback(UART_HandleTypeDef *huart, uint16_t Size) +{ + /* Prevent unused argument(s) compilation warning */ + UNUSED(huart); + UNUSED(Size); + + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_UARTEx_RxEventCallback can be implemented in the user file. + */ +} + +/** + * @} + */ + +/** @defgroup UART_Exported_Functions_Group3 Peripheral Control functions + * @brief UART control functions + * +@verbatim + =============================================================================== + ##### Peripheral Control functions ##### + =============================================================================== + [..] + This subsection provides a set of functions allowing to control the UART. + (+) HAL_UART_ReceiverTimeout_Config() API allows to configure the receiver timeout value on the fly + (+) HAL_UART_EnableReceiverTimeout() API enables the receiver timeout feature + (+) HAL_UART_DisableReceiverTimeout() API disables the receiver timeout feature + (+) HAL_MultiProcessor_EnableMuteMode() API enables mute mode + (+) HAL_MultiProcessor_DisableMuteMode() API disables mute mode + (+) HAL_MultiProcessor_EnterMuteMode() API enters mute mode + (+) UART_SetConfig() API configures the UART peripheral + (+) UART_AdvFeatureConfig() API optionally configures the UART advanced features + (+) UART_CheckIdleState() API ensures that TEACK and/or REACK are set after initialization + (+) HAL_HalfDuplex_EnableTransmitter() API disables receiver and enables transmitter + (+) HAL_HalfDuplex_EnableReceiver() API disables transmitter and enables receiver + (+) HAL_LIN_SendBreak() API transmits the break characters +@endverbatim + * @{ + */ + +/** + * @brief Update on the fly the receiver timeout value in RTOR register. + * @param huart Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @param TimeoutValue receiver timeout value in number of baud blocks. The timeout + * value must be less or equal to 0x0FFFFFFFF. + * @retval None + */ +void HAL_UART_ReceiverTimeout_Config(UART_HandleTypeDef *huart, uint32_t TimeoutValue) +{ + if (!(IS_LPUART_INSTANCE(huart->Instance))) + { + assert_param(IS_UART_RECEIVER_TIMEOUT_VALUE(TimeoutValue)); + MODIFY_REG(huart->Instance->RTOR, USART_RTOR_RTO, TimeoutValue); + } +} + +/** + * @brief Enable the UART receiver timeout feature. + * @param huart Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_EnableReceiverTimeout(UART_HandleTypeDef *huart) +{ + if (!(IS_LPUART_INSTANCE(huart->Instance))) + { + if (huart->gState == HAL_UART_STATE_READY) + { + /* Process Locked */ + __HAL_LOCK(huart); + + huart->gState = HAL_UART_STATE_BUSY; + + /* Set the USART RTOEN bit */ + SET_BIT(huart->Instance->CR2, USART_CR2_RTOEN); + + huart->gState = HAL_UART_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } + } + else + { + return HAL_ERROR; + } +} + +/** + * @brief Disable the UART receiver timeout feature. + * @param huart Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_UART_DisableReceiverTimeout(UART_HandleTypeDef *huart) +{ + if (!(IS_LPUART_INSTANCE(huart->Instance))) + { + if (huart->gState == HAL_UART_STATE_READY) + { + /* Process Locked */ + __HAL_LOCK(huart); + + huart->gState = HAL_UART_STATE_BUSY; + + /* Clear the USART RTOEN bit */ + CLEAR_BIT(huart->Instance->CR2, USART_CR2_RTOEN); + + huart->gState = HAL_UART_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_OK; + } + else + { + return HAL_BUSY; + } + } + else + { + return HAL_ERROR; + } +} + +/** + * @brief Enable UART in mute mode (does not mean UART enters mute mode; + * to enter mute mode, HAL_MultiProcessor_EnterMuteMode() API must be called). + * @param huart UART handle. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_MultiProcessor_EnableMuteMode(UART_HandleTypeDef *huart) +{ + __HAL_LOCK(huart); + + huart->gState = HAL_UART_STATE_BUSY; + + /* Enable USART mute mode by setting the MME bit in the CR1 register */ + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_MME); + + huart->gState = HAL_UART_STATE_READY; + + return (UART_CheckIdleState(huart)); +} + +/** + * @brief Disable UART mute mode (does not mean the UART actually exits mute mode + * as it may not have been in mute mode at this very moment). + * @param huart UART handle. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_MultiProcessor_DisableMuteMode(UART_HandleTypeDef *huart) +{ + __HAL_LOCK(huart); + + huart->gState = HAL_UART_STATE_BUSY; + + /* Disable USART mute mode by clearing the MME bit in the CR1 register */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_MME); + + huart->gState = HAL_UART_STATE_READY; + + return (UART_CheckIdleState(huart)); +} + +/** + * @brief Enter UART mute mode (means UART actually enters mute mode). + * @note To exit from mute mode, HAL_MultiProcessor_DisableMuteMode() API must be called. + * @param huart UART handle. + * @retval None + */ +void HAL_MultiProcessor_EnterMuteMode(UART_HandleTypeDef *huart) +{ + __HAL_UART_SEND_REQ(huart, UART_MUTE_MODE_REQUEST); +} + +/** + * @brief Enable the UART transmitter and disable the UART receiver. + * @param huart UART handle. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_HalfDuplex_EnableTransmitter(UART_HandleTypeDef *huart) +{ + __HAL_LOCK(huart); + huart->gState = HAL_UART_STATE_BUSY; + + /* Clear TE and RE bits */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TE | USART_CR1_RE)); + + /* Enable the USART's transmit interface by setting the TE bit in the USART CR1 register */ + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_TE); + + huart->gState = HAL_UART_STATE_READY; + + __HAL_UNLOCK(huart); + + return HAL_OK; +} + +/** + * @brief Enable the UART receiver and disable the UART transmitter. + * @param huart UART handle. + * @retval HAL status. + */ +HAL_StatusTypeDef HAL_HalfDuplex_EnableReceiver(UART_HandleTypeDef *huart) +{ + __HAL_LOCK(huart); + huart->gState = HAL_UART_STATE_BUSY; + + /* Clear TE and RE bits */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TE | USART_CR1_RE)); + + /* Enable the USART's receive interface by setting the RE bit in the USART CR1 register */ + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_RE); + + huart->gState = HAL_UART_STATE_READY; + + __HAL_UNLOCK(huart); + + return HAL_OK; +} + + +/** + * @brief Transmit break characters. + * @param huart UART handle. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_LIN_SendBreak(UART_HandleTypeDef *huart) +{ + /* Check the parameters */ + assert_param(IS_UART_LIN_INSTANCE(huart->Instance)); + + __HAL_LOCK(huart); + + huart->gState = HAL_UART_STATE_BUSY; + + /* Send break characters */ + __HAL_UART_SEND_REQ(huart, UART_SENDBREAK_REQUEST); + + huart->gState = HAL_UART_STATE_READY; + + __HAL_UNLOCK(huart); + + return HAL_OK; +} + +/** + * @} + */ + +/** @defgroup UART_Exported_Functions_Group4 Peripheral State and Error functions + * @brief UART Peripheral State functions + * +@verbatim + ============================================================================== + ##### Peripheral State and Error functions ##### + ============================================================================== + [..] + This subsection provides functions allowing to : + (+) Return the UART handle state. + (+) Return the UART handle error code + +@endverbatim + * @{ + */ + +/** + * @brief Return the UART handle state. + * @param huart Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART. + * @retval HAL state + */ +HAL_UART_StateTypeDef HAL_UART_GetState(const UART_HandleTypeDef *huart) +{ + uint32_t temp1; + uint32_t temp2; + temp1 = huart->gState; + temp2 = huart->RxState; + + return (HAL_UART_StateTypeDef)(temp1 | temp2); +} + +/** + * @brief Return the UART handle error code. + * @param huart Pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART. + * @retval UART Error Code + */ +uint32_t HAL_UART_GetError(const UART_HandleTypeDef *huart) +{ + return huart->ErrorCode; +} +/** + * @} + */ + +/** + * @} + */ + +/** @defgroup UART_Private_Functions UART Private Functions + * @{ + */ + +/** + * @brief Initialize the callbacks to their default values. + * @param huart UART handle. + * @retval none + */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) +void UART_InitCallbacksToDefault(UART_HandleTypeDef *huart) +{ + /* Init the UART Callback settings */ + huart->TxHalfCpltCallback = HAL_UART_TxHalfCpltCallback; /* Legacy weak TxHalfCpltCallback */ + huart->TxCpltCallback = HAL_UART_TxCpltCallback; /* Legacy weak TxCpltCallback */ + huart->RxHalfCpltCallback = HAL_UART_RxHalfCpltCallback; /* Legacy weak RxHalfCpltCallback */ + huart->RxCpltCallback = HAL_UART_RxCpltCallback; /* Legacy weak RxCpltCallback */ + huart->ErrorCallback = HAL_UART_ErrorCallback; /* Legacy weak ErrorCallback */ + huart->AbortCpltCallback = HAL_UART_AbortCpltCallback; /* Legacy weak AbortCpltCallback */ + huart->AbortTransmitCpltCallback = HAL_UART_AbortTransmitCpltCallback; /* Legacy weak AbortTransmitCpltCallback */ + huart->AbortReceiveCpltCallback = HAL_UART_AbortReceiveCpltCallback; /* Legacy weak AbortReceiveCpltCallback */ + huart->WakeupCallback = HAL_UARTEx_WakeupCallback; /* Legacy weak WakeupCallback */ + huart->RxFifoFullCallback = HAL_UARTEx_RxFifoFullCallback; /* Legacy weak RxFifoFullCallback */ + huart->TxFifoEmptyCallback = HAL_UARTEx_TxFifoEmptyCallback; /* Legacy weak TxFifoEmptyCallback */ + huart->RxEventCallback = HAL_UARTEx_RxEventCallback; /* Legacy weak RxEventCallback */ + +} +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + +/** + * @brief Configure the UART peripheral. + * @param huart UART handle. + * @retval HAL status + */ +HAL_StatusTypeDef UART_SetConfig(UART_HandleTypeDef *huart) +{ + uint32_t tmpreg; + uint16_t brrtemp; + UART_ClockSourceTypeDef clocksource; + uint32_t usartdiv; + HAL_StatusTypeDef ret = HAL_OK; + uint32_t lpuart_ker_ck_pres; + PLL2_ClocksTypeDef pll2_clocks; + PLL3_ClocksTypeDef pll3_clocks; + uint32_t pclk; + + /* Check the parameters */ + assert_param(IS_UART_BAUDRATE(huart->Init.BaudRate)); + assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength)); + if (UART_INSTANCE_LOWPOWER(huart)) + { + assert_param(IS_LPUART_STOPBITS(huart->Init.StopBits)); + } + else + { + assert_param(IS_UART_STOPBITS(huart->Init.StopBits)); + assert_param(IS_UART_ONE_BIT_SAMPLE(huart->Init.OneBitSampling)); + } + + assert_param(IS_UART_PARITY(huart->Init.Parity)); + assert_param(IS_UART_MODE(huart->Init.Mode)); + assert_param(IS_UART_HARDWARE_FLOW_CONTROL(huart->Init.HwFlowCtl)); + assert_param(IS_UART_OVERSAMPLING(huart->Init.OverSampling)); + assert_param(IS_UART_PRESCALER(huart->Init.ClockPrescaler)); + + /*-------------------------- USART CR1 Configuration -----------------------*/ + /* Clear M, PCE, PS, TE, RE and OVER8 bits and configure + * the UART Word Length, Parity, Mode and oversampling: + * set the M bits according to huart->Init.WordLength value + * set PCE and PS bits according to huart->Init.Parity value + * set TE and RE bits according to huart->Init.Mode value + * set OVER8 bit according to huart->Init.OverSampling value */ + tmpreg = (uint32_t)huart->Init.WordLength | huart->Init.Parity | huart->Init.Mode | huart->Init.OverSampling ; + MODIFY_REG(huart->Instance->CR1, USART_CR1_FIELDS, tmpreg); + + /*-------------------------- USART CR2 Configuration -----------------------*/ + /* Configure the UART Stop Bits: Set STOP[13:12] bits according + * to huart->Init.StopBits value */ + MODIFY_REG(huart->Instance->CR2, USART_CR2_STOP, huart->Init.StopBits); + + /*-------------------------- USART CR3 Configuration -----------------------*/ + /* Configure + * - UART HardWare Flow Control: set CTSE and RTSE bits according + * to huart->Init.HwFlowCtl value + * - one-bit sampling method versus three samples' majority rule according + * to huart->Init.OneBitSampling (not applicable to LPUART) */ + tmpreg = (uint32_t)huart->Init.HwFlowCtl; + + if (!(UART_INSTANCE_LOWPOWER(huart))) + { + tmpreg |= huart->Init.OneBitSampling; + } + MODIFY_REG(huart->Instance->CR3, USART_CR3_FIELDS, tmpreg); + + /*-------------------------- USART PRESC Configuration -----------------------*/ + /* Configure + * - UART Clock Prescaler : set PRESCALER according to huart->Init.ClockPrescaler value */ + MODIFY_REG(huart->Instance->PRESC, USART_PRESC_PRESCALER, huart->Init.ClockPrescaler); + + /*-------------------------- USART BRR Configuration -----------------------*/ + UART_GETCLOCKSOURCE(huart, clocksource); + + /* Check LPUART instance */ + if (UART_INSTANCE_LOWPOWER(huart)) + { + /* Retrieve frequency clock */ + switch (clocksource) + { + case UART_CLOCKSOURCE_D3PCLK1: + pclk = HAL_RCCEx_GetD3PCLK1Freq(); + break; + case UART_CLOCKSOURCE_PLL2: + HAL_RCCEx_GetPLL2ClockFreq(&pll2_clocks); + pclk = pll2_clocks.PLL2_Q_Frequency; + break; + case UART_CLOCKSOURCE_PLL3: + HAL_RCCEx_GetPLL3ClockFreq(&pll3_clocks); + pclk = pll3_clocks.PLL3_Q_Frequency; + break; + case UART_CLOCKSOURCE_HSI: + if (__HAL_RCC_GET_FLAG(RCC_FLAG_HSIDIV) != 0U) + { + pclk = (uint32_t)(HSI_VALUE >> (__HAL_RCC_GET_HSI_DIVIDER() >> 3U)); + } + else + { + pclk = (uint32_t) HSI_VALUE; + } + break; + case UART_CLOCKSOURCE_CSI: + pclk = (uint32_t) CSI_VALUE; + break; + case UART_CLOCKSOURCE_LSE: + pclk = (uint32_t) LSE_VALUE; + break; + default: + pclk = 0U; + ret = HAL_ERROR; + break; + } + + /* If proper clock source reported */ + if (pclk != 0U) + { + /* Compute clock after Prescaler */ + lpuart_ker_ck_pres = (pclk / UARTPrescTable[huart->Init.ClockPrescaler]); + + /* Ensure that Frequency clock is in the range [3 * baudrate, 4096 * baudrate] */ + if ((lpuart_ker_ck_pres < (3U * huart->Init.BaudRate)) || + (lpuart_ker_ck_pres > (4096U * huart->Init.BaudRate))) + { + ret = HAL_ERROR; + } + else + { + /* Check computed UsartDiv value is in allocated range + (it is forbidden to write values lower than 0x300 in the LPUART_BRR register) */ + usartdiv = (uint32_t)(UART_DIV_LPUART(pclk, huart->Init.BaudRate, huart->Init.ClockPrescaler)); + if ((usartdiv >= LPUART_BRR_MIN) && (usartdiv <= LPUART_BRR_MAX)) + { + huart->Instance->BRR = usartdiv; + } + else + { + ret = HAL_ERROR; + } + } /* if ( (lpuart_ker_ck_pres < (3 * huart->Init.BaudRate) ) || + (lpuart_ker_ck_pres > (4096 * huart->Init.BaudRate) )) */ + } /* if (pclk != 0) */ + } + /* Check UART Over Sampling to set Baud Rate Register */ + else if (huart->Init.OverSampling == UART_OVERSAMPLING_8) + { + switch (clocksource) + { + case UART_CLOCKSOURCE_D2PCLK1: + pclk = HAL_RCC_GetPCLK1Freq(); + break; + case UART_CLOCKSOURCE_D2PCLK2: + pclk = HAL_RCC_GetPCLK2Freq(); + break; + case UART_CLOCKSOURCE_PLL2: + HAL_RCCEx_GetPLL2ClockFreq(&pll2_clocks); + pclk = pll2_clocks.PLL2_Q_Frequency; + break; + case UART_CLOCKSOURCE_PLL3: + HAL_RCCEx_GetPLL3ClockFreq(&pll3_clocks); + pclk = pll3_clocks.PLL3_Q_Frequency; + break; + case UART_CLOCKSOURCE_HSI: + if (__HAL_RCC_GET_FLAG(RCC_FLAG_HSIDIV) != 0U) + { + pclk = (uint32_t)(HSI_VALUE >> (__HAL_RCC_GET_HSI_DIVIDER() >> 3U)); + } + else + { + pclk = (uint32_t) HSI_VALUE; + } + break; + case UART_CLOCKSOURCE_CSI: + pclk = (uint32_t) CSI_VALUE; + break; + case UART_CLOCKSOURCE_LSE: + pclk = (uint32_t) LSE_VALUE; + break; + default: + pclk = 0U; + ret = HAL_ERROR; + break; + } + + /* USARTDIV must be greater than or equal to 0d16 */ + if (pclk != 0U) + { + usartdiv = (uint32_t)(UART_DIV_SAMPLING8(pclk, huart->Init.BaudRate, huart->Init.ClockPrescaler)); + if ((usartdiv >= UART_BRR_MIN) && (usartdiv <= UART_BRR_MAX)) + { + brrtemp = (uint16_t)(usartdiv & 0xFFF0U); + brrtemp |= (uint16_t)((usartdiv & (uint16_t)0x000FU) >> 1U); + huart->Instance->BRR = brrtemp; + } + else + { + ret = HAL_ERROR; + } + } + } + else + { + switch (clocksource) + { + case UART_CLOCKSOURCE_D2PCLK1: + pclk = HAL_RCC_GetPCLK1Freq(); + break; + case UART_CLOCKSOURCE_D2PCLK2: + pclk = HAL_RCC_GetPCLK2Freq(); + break; + case UART_CLOCKSOURCE_PLL2: + HAL_RCCEx_GetPLL2ClockFreq(&pll2_clocks); + pclk = pll2_clocks.PLL2_Q_Frequency; + break; + case UART_CLOCKSOURCE_PLL3: + HAL_RCCEx_GetPLL3ClockFreq(&pll3_clocks); + pclk = pll3_clocks.PLL3_Q_Frequency; + break; + case UART_CLOCKSOURCE_HSI: + if (__HAL_RCC_GET_FLAG(RCC_FLAG_HSIDIV) != 0U) + { + pclk = (uint32_t)(HSI_VALUE >> (__HAL_RCC_GET_HSI_DIVIDER() >> 3U)); + } + else + { + pclk = (uint32_t) HSI_VALUE; + } + break; + case UART_CLOCKSOURCE_CSI: + pclk = (uint32_t) CSI_VALUE; + break; + case UART_CLOCKSOURCE_LSE: + pclk = (uint32_t) LSE_VALUE; + break; + default: + pclk = 0U; + ret = HAL_ERROR; + break; + } + + if (pclk != 0U) + { + /* USARTDIV must be greater than or equal to 0d16 */ + usartdiv = (uint32_t)(UART_DIV_SAMPLING16(pclk, huart->Init.BaudRate, huart->Init.ClockPrescaler)); + if ((usartdiv >= UART_BRR_MIN) && (usartdiv <= UART_BRR_MAX)) + { + huart->Instance->BRR = (uint16_t)usartdiv; + } + else + { + ret = HAL_ERROR; + } + } + } + + /* Initialize the number of data to process during RX/TX ISR execution */ + huart->NbTxDataToProcess = 1; + huart->NbRxDataToProcess = 1; + + /* Clear ISR function pointers */ + huart->RxISR = NULL; + huart->TxISR = NULL; + + return ret; +} + +/** + * @brief Configure the UART peripheral advanced features. + * @param huart UART handle. + * @retval None + */ +void UART_AdvFeatureConfig(UART_HandleTypeDef *huart) +{ + /* Check whether the set of advanced features to configure is properly set */ + assert_param(IS_UART_ADVFEATURE_INIT(huart->AdvancedInit.AdvFeatureInit)); + + /* if required, configure TX pin active level inversion */ + if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_TXINVERT_INIT)) + { + assert_param(IS_UART_ADVFEATURE_TXINV(huart->AdvancedInit.TxPinLevelInvert)); + MODIFY_REG(huart->Instance->CR2, USART_CR2_TXINV, huart->AdvancedInit.TxPinLevelInvert); + } + + /* if required, configure RX pin active level inversion */ + if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_RXINVERT_INIT)) + { + assert_param(IS_UART_ADVFEATURE_RXINV(huart->AdvancedInit.RxPinLevelInvert)); + MODIFY_REG(huart->Instance->CR2, USART_CR2_RXINV, huart->AdvancedInit.RxPinLevelInvert); + } + + /* if required, configure data inversion */ + if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_DATAINVERT_INIT)) + { + assert_param(IS_UART_ADVFEATURE_DATAINV(huart->AdvancedInit.DataInvert)); + MODIFY_REG(huart->Instance->CR2, USART_CR2_DATAINV, huart->AdvancedInit.DataInvert); + } + + /* if required, configure RX/TX pins swap */ + if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_SWAP_INIT)) + { + assert_param(IS_UART_ADVFEATURE_SWAP(huart->AdvancedInit.Swap)); + MODIFY_REG(huart->Instance->CR2, USART_CR2_SWAP, huart->AdvancedInit.Swap); + } + + /* if required, configure RX overrun detection disabling */ + if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_RXOVERRUNDISABLE_INIT)) + { + assert_param(IS_UART_OVERRUN(huart->AdvancedInit.OverrunDisable)); + MODIFY_REG(huart->Instance->CR3, USART_CR3_OVRDIS, huart->AdvancedInit.OverrunDisable); + } + + /* if required, configure DMA disabling on reception error */ + if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_DMADISABLEONERROR_INIT)) + { + assert_param(IS_UART_ADVFEATURE_DMAONRXERROR(huart->AdvancedInit.DMADisableonRxError)); + MODIFY_REG(huart->Instance->CR3, USART_CR3_DDRE, huart->AdvancedInit.DMADisableonRxError); + } + + /* if required, configure auto Baud rate detection scheme */ + if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_AUTOBAUDRATE_INIT)) + { + assert_param(IS_USART_AUTOBAUDRATE_DETECTION_INSTANCE(huart->Instance)); + assert_param(IS_UART_ADVFEATURE_AUTOBAUDRATE(huart->AdvancedInit.AutoBaudRateEnable)); + MODIFY_REG(huart->Instance->CR2, USART_CR2_ABREN, huart->AdvancedInit.AutoBaudRateEnable); + /* set auto Baudrate detection parameters if detection is enabled */ + if (huart->AdvancedInit.AutoBaudRateEnable == UART_ADVFEATURE_AUTOBAUDRATE_ENABLE) + { + assert_param(IS_UART_ADVFEATURE_AUTOBAUDRATEMODE(huart->AdvancedInit.AutoBaudRateMode)); + MODIFY_REG(huart->Instance->CR2, USART_CR2_ABRMODE, huart->AdvancedInit.AutoBaudRateMode); + } + } + + /* if required, configure MSB first on communication line */ + if (HAL_IS_BIT_SET(huart->AdvancedInit.AdvFeatureInit, UART_ADVFEATURE_MSBFIRST_INIT)) + { + assert_param(IS_UART_ADVFEATURE_MSBFIRST(huart->AdvancedInit.MSBFirst)); + MODIFY_REG(huart->Instance->CR2, USART_CR2_MSBFIRST, huart->AdvancedInit.MSBFirst); + } +} + +/** + * @brief Check the UART Idle State. + * @param huart UART handle. + * @retval HAL status + */ +HAL_StatusTypeDef UART_CheckIdleState(UART_HandleTypeDef *huart) +{ + uint32_t tickstart; + + /* Initialize the UART ErrorCode */ + huart->ErrorCode = HAL_UART_ERROR_NONE; + + /* Init tickstart for timeout management */ + tickstart = HAL_GetTick(); + + /* Check if the Transmitter is enabled */ + if ((huart->Instance->CR1 & USART_CR1_TE) == USART_CR1_TE) + { + /* Wait until TEACK flag is set */ + if (UART_WaitOnFlagUntilTimeout(huart, USART_ISR_TEACK, RESET, tickstart, HAL_UART_TIMEOUT_VALUE) != HAL_OK) + { + /* Disable TXE interrupt for the interrupt process */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TXEIE_TXFNFIE)); + + huart->gState = HAL_UART_STATE_READY; + + __HAL_UNLOCK(huart); + + /* Timeout occurred */ + return HAL_TIMEOUT; + } + } + + /* Check if the Receiver is enabled */ + if ((huart->Instance->CR1 & USART_CR1_RE) == USART_CR1_RE) + { + /* Wait until REACK flag is set */ + if (UART_WaitOnFlagUntilTimeout(huart, USART_ISR_REACK, RESET, tickstart, HAL_UART_TIMEOUT_VALUE) != HAL_OK) + { + /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) + interrupts for the interrupt process */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE_RXFNEIE | USART_CR1_PEIE)); + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE); + + huart->RxState = HAL_UART_STATE_READY; + + __HAL_UNLOCK(huart); + + /* Timeout occurred */ + return HAL_TIMEOUT; + } + } + + /* Initialize the UART State */ + huart->gState = HAL_UART_STATE_READY; + huart->RxState = HAL_UART_STATE_READY; + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + huart->RxEventType = HAL_UART_RXEVENT_TC; + + __HAL_UNLOCK(huart); + + return HAL_OK; +} + +/** + * @brief This function handles UART Communication Timeout. It waits + * until a flag is no longer in the specified status. + * @param huart UART handle. + * @param Flag Specifies the UART flag to check + * @param Status The actual Flag status (SET or RESET) + * @param Tickstart Tick start value + * @param Timeout Timeout duration + * @retval HAL status + */ +HAL_StatusTypeDef UART_WaitOnFlagUntilTimeout(UART_HandleTypeDef *huart, uint32_t Flag, FlagStatus Status, + uint32_t Tickstart, uint32_t Timeout) +{ + /* Wait until flag is set */ + while ((__HAL_UART_GET_FLAG(huart, Flag) ? SET : RESET) == Status) + { + /* Check for the Timeout */ + if (Timeout != HAL_MAX_DELAY) + { + if (((HAL_GetTick() - Tickstart) > Timeout) || (Timeout == 0U)) + { + + return HAL_TIMEOUT; + } + + if (READ_BIT(huart->Instance->CR1, USART_CR1_RE) != 0U) + { + if (__HAL_UART_GET_FLAG(huart, UART_FLAG_ORE) == SET) + { + /* Clear Overrun Error flag*/ + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF); + + /* Blocking error : transfer is aborted + Set the UART state ready to be able to start again the process, + Disable Rx Interrupts if ongoing */ + UART_EndRxTransfer(huart); + + huart->ErrorCode = HAL_UART_ERROR_ORE; + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_ERROR; + } + if (__HAL_UART_GET_FLAG(huart, UART_FLAG_RTOF) == SET) + { + /* Clear Receiver Timeout flag*/ + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_RTOF); + + /* Blocking error : transfer is aborted + Set the UART state ready to be able to start again the process, + Disable Rx Interrupts if ongoing */ + UART_EndRxTransfer(huart); + + huart->ErrorCode = HAL_UART_ERROR_RTO; + + /* Process Unlocked */ + __HAL_UNLOCK(huart); + + return HAL_TIMEOUT; + } + } + } + } + return HAL_OK; +} + +/** + * @brief Start Receive operation in interrupt mode. + * @note This function could be called by all HAL UART API providing reception in Interrupt mode. + * @note When calling this function, parameters validity is considered as already checked, + * i.e. Rx State, buffer address, ... + * UART Handle is assumed as Locked. + * @param huart UART handle. + * @param pData Pointer to data buffer (u8 or u16 data elements). + * @param Size Amount of data elements (u8 or u16) to be received. + * @retval HAL status + */ +HAL_StatusTypeDef UART_Start_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size) +{ + huart->pRxBuffPtr = pData; + huart->RxXferSize = Size; + huart->RxXferCount = Size; + huart->RxISR = NULL; + + /* Computation of UART mask to apply to RDR register */ + UART_MASK_COMPUTATION(huart); + + huart->ErrorCode = HAL_UART_ERROR_NONE; + huart->RxState = HAL_UART_STATE_BUSY_RX; + + /* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */ + ATOMIC_SET_BIT(huart->Instance->CR3, USART_CR3_EIE); + + /* Configure Rx interrupt processing */ + if ((huart->FifoMode == UART_FIFOMODE_ENABLE) && (Size >= huart->NbRxDataToProcess)) + { + /* Set the Rx ISR function pointer according to the data word length */ + if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE)) + { + huart->RxISR = UART_RxISR_16BIT_FIFOEN; + } + else + { + huart->RxISR = UART_RxISR_8BIT_FIFOEN; + } + + /* Enable the UART Parity Error interrupt and RX FIFO Threshold interrupt */ + if (huart->Init.Parity != UART_PARITY_NONE) + { + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_PEIE); + } + ATOMIC_SET_BIT(huart->Instance->CR3, USART_CR3_RXFTIE); + } + else + { + /* Set the Rx ISR function pointer according to the data word length */ + if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE)) + { + huart->RxISR = UART_RxISR_16BIT; + } + else + { + huart->RxISR = UART_RxISR_8BIT; + } + + /* Enable the UART Parity Error interrupt and Data Register Not Empty interrupt */ + if (huart->Init.Parity != UART_PARITY_NONE) + { + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_PEIE | USART_CR1_RXNEIE_RXFNEIE); + } + else + { + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_RXNEIE_RXFNEIE); + } + } + return HAL_OK; +} + +/** + * @brief Start Receive operation in DMA mode. + * @note This function could be called by all HAL UART API providing reception in DMA mode. + * @note When calling this function, parameters validity is considered as already checked, + * i.e. Rx State, buffer address, ... + * UART Handle is assumed as Locked. + * @param huart UART handle. + * @param pData Pointer to data buffer (u8 or u16 data elements). + * @param Size Amount of data elements (u8 or u16) to be received. + * @retval HAL status + */ +HAL_StatusTypeDef UART_Start_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size) +{ + huart->pRxBuffPtr = pData; + huart->RxXferSize = Size; + + huart->ErrorCode = HAL_UART_ERROR_NONE; + huart->RxState = HAL_UART_STATE_BUSY_RX; + + if (huart->hdmarx != NULL) + { + /* Set the UART DMA transfer complete callback */ + huart->hdmarx->XferCpltCallback = UART_DMAReceiveCplt; + + /* Set the UART DMA Half transfer complete callback */ + huart->hdmarx->XferHalfCpltCallback = UART_DMARxHalfCplt; + + /* Set the DMA error callback */ + huart->hdmarx->XferErrorCallback = UART_DMAError; + + /* Set the DMA abort callback */ + huart->hdmarx->XferAbortCallback = NULL; + + /* Enable the DMA channel */ + if (HAL_DMA_Start_IT(huart->hdmarx, (uint32_t)&huart->Instance->RDR, (uint32_t)huart->pRxBuffPtr, Size) != HAL_OK) + { + /* Set error code to DMA */ + huart->ErrorCode = HAL_UART_ERROR_DMA; + + /* Restore huart->RxState to ready */ + huart->RxState = HAL_UART_STATE_READY; + + return HAL_ERROR; + } + } + + /* Enable the UART Parity Error Interrupt */ + if (huart->Init.Parity != UART_PARITY_NONE) + { + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_PEIE); + } + + /* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */ + ATOMIC_SET_BIT(huart->Instance->CR3, USART_CR3_EIE); + + /* Enable the DMA transfer for the receiver request by setting the DMAR bit + in the UART CR3 register */ + ATOMIC_SET_BIT(huart->Instance->CR3, USART_CR3_DMAR); + + return HAL_OK; +} + + +/** + * @brief End ongoing Tx transfer on UART peripheral (following error detection or Transmit completion). + * @param huart UART handle. + * @retval None + */ +static void UART_EndTxTransfer(UART_HandleTypeDef *huart) +{ + /* Disable TXEIE, TCIE, TXFT interrupts */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TXEIE_TXFNFIE | USART_CR1_TCIE)); + ATOMIC_CLEAR_BIT(huart->Instance->CR3, (USART_CR3_TXFTIE)); + + /* At end of Tx process, restore huart->gState to Ready */ + huart->gState = HAL_UART_STATE_READY; +} + + +/** + * @brief End ongoing Rx transfer on UART peripheral (following error detection or Reception completion). + * @param huart UART handle. + * @retval None + */ +static void UART_EndRxTransfer(UART_HandleTypeDef *huart) +{ + /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE_RXFNEIE | USART_CR1_PEIE)); + ATOMIC_CLEAR_BIT(huart->Instance->CR3, (USART_CR3_EIE | USART_CR3_RXFTIE)); + + /* In case of reception waiting for IDLE event, disable also the IDLE IE interrupt source */ + if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE) + { + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_IDLEIE); + } + + /* At end of Rx process, restore huart->RxState to Ready */ + huart->RxState = HAL_UART_STATE_READY; + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + /* Reset RxIsr function pointer */ + huart->RxISR = NULL; +} + + +/** + * @brief DMA UART transmit process complete callback. + * @param hdma DMA handle. + * @retval None + */ +static void UART_DMATransmitCplt(DMA_HandleTypeDef *hdma) +{ + UART_HandleTypeDef *huart = (UART_HandleTypeDef *)(hdma->Parent); + + /* DMA Normal mode */ + if (hdma->Init.Mode != DMA_CIRCULAR) + { + huart->TxXferCount = 0U; + + /* Disable the DMA transfer for transmit request by resetting the DMAT bit + in the UART CR3 register */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT); + + /* Enable the UART Transmit Complete Interrupt */ + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_TCIE); + } + /* DMA Circular mode */ + else + { +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Tx complete callback*/ + huart->TxCpltCallback(huart); +#else + /*Call legacy weak Tx complete callback*/ + HAL_UART_TxCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + } +} + +/** + * @brief DMA UART transmit process half complete callback. + * @param hdma DMA handle. + * @retval None + */ +static void UART_DMATxHalfCplt(DMA_HandleTypeDef *hdma) +{ + UART_HandleTypeDef *huart = (UART_HandleTypeDef *)(hdma->Parent); + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Tx Half complete callback*/ + huart->TxHalfCpltCallback(huart); +#else + /*Call legacy weak Tx Half complete callback*/ + HAL_UART_TxHalfCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA UART receive process complete callback. + * @param hdma DMA handle. + * @retval None + */ +static void UART_DMAReceiveCplt(DMA_HandleTypeDef *hdma) +{ + UART_HandleTypeDef *huart = (UART_HandleTypeDef *)(hdma->Parent); + + /* DMA Normal mode */ + if (hdma->Init.Mode != DMA_CIRCULAR) + { + huart->RxXferCount = 0U; + + /* Disable PE and ERR (Frame error, noise error, overrun error) interrupts */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_PEIE); + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE); + + /* Disable the DMA transfer for the receiver request by resetting the DMAR bit + in the UART CR3 register */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR); + + /* At end of Rx process, restore huart->RxState to Ready */ + huart->RxState = HAL_UART_STATE_READY; + + /* If Reception till IDLE event has been selected, Disable IDLE Interrupt */ + if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE) + { + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_IDLEIE); + } + } + + /* Initialize type of RxEvent that correspond to RxEvent callback execution; + In this case, Rx Event type is Transfer Complete */ + huart->RxEventType = HAL_UART_RXEVENT_TC; + + /* Check current reception Mode : + If Reception till IDLE event has been selected : use Rx Event callback */ + if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE) + { +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Rx Event callback*/ + huart->RxEventCallback(huart, huart->RxXferSize); +#else + /*Call legacy weak Rx Event callback*/ + HAL_UARTEx_RxEventCallback(huart, huart->RxXferSize); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + } + else + { + /* In other cases : use Rx Complete callback */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Rx complete callback*/ + huart->RxCpltCallback(huart); +#else + /*Call legacy weak Rx complete callback*/ + HAL_UART_RxCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + } +} + +/** + * @brief DMA UART receive process half complete callback. + * @param hdma DMA handle. + * @retval None + */ +static void UART_DMARxHalfCplt(DMA_HandleTypeDef *hdma) +{ + UART_HandleTypeDef *huart = (UART_HandleTypeDef *)(hdma->Parent); + + /* Initialize type of RxEvent that correspond to RxEvent callback execution; + In this case, Rx Event type is Half Transfer */ + huart->RxEventType = HAL_UART_RXEVENT_HT; + + /* Check current reception Mode : + If Reception till IDLE event has been selected : use Rx Event callback */ + if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE) + { +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Rx Event callback*/ + huart->RxEventCallback(huart, huart->RxXferSize / 2U); +#else + /*Call legacy weak Rx Event callback*/ + HAL_UARTEx_RxEventCallback(huart, huart->RxXferSize / 2U); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + } + else + { + /* In other cases : use Rx Half Complete callback */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Rx Half complete callback*/ + huart->RxHalfCpltCallback(huart); +#else + /*Call legacy weak Rx Half complete callback*/ + HAL_UART_RxHalfCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + } +} + +/** + * @brief DMA UART communication error callback. + * @param hdma DMA handle. + * @retval None + */ +static void UART_DMAError(DMA_HandleTypeDef *hdma) +{ + UART_HandleTypeDef *huart = (UART_HandleTypeDef *)(hdma->Parent); + + const HAL_UART_StateTypeDef gstate = huart->gState; + const HAL_UART_StateTypeDef rxstate = huart->RxState; + + /* Stop UART DMA Tx request if ongoing */ + if ((HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT)) && + (gstate == HAL_UART_STATE_BUSY_TX)) + { + huart->TxXferCount = 0U; + UART_EndTxTransfer(huart); + } + + /* Stop UART DMA Rx request if ongoing */ + if ((HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) && + (rxstate == HAL_UART_STATE_BUSY_RX)) + { + huart->RxXferCount = 0U; + UART_EndRxTransfer(huart); + } + + huart->ErrorCode |= HAL_UART_ERROR_DMA; + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered error callback*/ + huart->ErrorCallback(huart); +#else + /*Call legacy weak error callback*/ + HAL_UART_ErrorCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA UART 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 UART_DMAAbortOnError(DMA_HandleTypeDef *hdma) +{ + UART_HandleTypeDef *huart = (UART_HandleTypeDef *)(hdma->Parent); + huart->RxXferCount = 0U; + huart->TxXferCount = 0U; + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered error callback*/ + huart->ErrorCallback(huart); +#else + /*Call legacy weak error callback*/ + HAL_UART_ErrorCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA UART 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 UART_DMATxAbortCallback(DMA_HandleTypeDef *hdma) +{ + UART_HandleTypeDef *huart = (UART_HandleTypeDef *)(hdma->Parent); + + huart->hdmatx->XferAbortCallback = NULL; + + /* Check if an Abort process is still ongoing */ + if (huart->hdmarx != NULL) + { + if (huart->hdmarx->XferAbortCallback != NULL) + { + return; + } + } + + /* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */ + huart->TxXferCount = 0U; + huart->RxXferCount = 0U; + + /* Reset errorCode */ + huart->ErrorCode = HAL_UART_ERROR_NONE; + + /* Clear the Error flags in the ICR register */ + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF | UART_CLEAR_NEF | UART_CLEAR_PEF | UART_CLEAR_FEF); + + /* Flush the whole TX FIFO (if needed) */ + if (huart->FifoMode == UART_FIFOMODE_ENABLE) + { + __HAL_UART_SEND_REQ(huart, UART_TXDATA_FLUSH_REQUEST); + } + + /* Restore huart->gState and huart->RxState to Ready */ + huart->gState = HAL_UART_STATE_READY; + huart->RxState = HAL_UART_STATE_READY; + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + /* Call user Abort complete callback */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /* Call registered Abort complete callback */ + huart->AbortCpltCallback(huart); +#else + /* Call legacy weak Abort complete callback */ + HAL_UART_AbortCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ +} + + +/** + * @brief DMA UART 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 UART_DMARxAbortCallback(DMA_HandleTypeDef *hdma) +{ + UART_HandleTypeDef *huart = (UART_HandleTypeDef *)(hdma->Parent); + + huart->hdmarx->XferAbortCallback = NULL; + + /* Check if an Abort process is still ongoing */ + if (huart->hdmatx != NULL) + { + if (huart->hdmatx->XferAbortCallback != NULL) + { + return; + } + } + + /* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */ + huart->TxXferCount = 0U; + huart->RxXferCount = 0U; + + /* Reset errorCode */ + huart->ErrorCode = HAL_UART_ERROR_NONE; + + /* Clear the Error flags in the ICR register */ + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF | UART_CLEAR_NEF | UART_CLEAR_PEF | UART_CLEAR_FEF); + + /* Discard the received data */ + __HAL_UART_SEND_REQ(huart, UART_RXDATA_FLUSH_REQUEST); + + /* Restore huart->gState and huart->RxState to Ready */ + huart->gState = HAL_UART_STATE_READY; + huart->RxState = HAL_UART_STATE_READY; + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + /* Call user Abort complete callback */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /* Call registered Abort complete callback */ + huart->AbortCpltCallback(huart); +#else + /* Call legacy weak Abort complete callback */ + HAL_UART_AbortCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ +} + + +/** + * @brief DMA UART Tx communication abort callback, when initiated by user by a call to + * HAL_UART_AbortTransmit_IT API (Abort only Tx transfer) + * (This callback is executed at end of DMA Tx Abort procedure following user abort request, + * and leads to user Tx Abort Complete callback execution). + * @param hdma DMA handle. + * @retval None + */ +static void UART_DMATxOnlyAbortCallback(DMA_HandleTypeDef *hdma) +{ + UART_HandleTypeDef *huart = (UART_HandleTypeDef *)(hdma->Parent); + + huart->TxXferCount = 0U; + + /* Flush the whole TX FIFO (if needed) */ + if (huart->FifoMode == UART_FIFOMODE_ENABLE) + { + __HAL_UART_SEND_REQ(huart, UART_TXDATA_FLUSH_REQUEST); + } + + /* Restore huart->gState to Ready */ + huart->gState = HAL_UART_STATE_READY; + + /* Call user Abort complete callback */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /* Call registered Abort Transmit Complete Callback */ + huart->AbortTransmitCpltCallback(huart); +#else + /* Call legacy weak Abort Transmit Complete Callback */ + HAL_UART_AbortTransmitCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ +} + +/** + * @brief DMA UART Rx communication abort callback, when initiated by user by a call to + * HAL_UART_AbortReceive_IT API (Abort only Rx transfer) + * (This callback is executed at end of DMA Rx Abort procedure following user abort request, + * and leads to user Rx Abort Complete callback execution). + * @param hdma DMA handle. + * @retval None + */ +static void UART_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma) +{ + UART_HandleTypeDef *huart = (UART_HandleTypeDef *)((DMA_HandleTypeDef *)hdma)->Parent; + + huart->RxXferCount = 0U; + + /* Clear the Error flags in the ICR register */ + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_OREF | UART_CLEAR_NEF | UART_CLEAR_PEF | UART_CLEAR_FEF); + + /* Discard the received data */ + __HAL_UART_SEND_REQ(huart, UART_RXDATA_FLUSH_REQUEST); + + /* Restore huart->RxState to Ready */ + huart->RxState = HAL_UART_STATE_READY; + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + /* Call user Abort complete callback */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /* Call registered Abort Receive Complete Callback */ + huart->AbortReceiveCpltCallback(huart); +#else + /* Call legacy weak Abort Receive Complete Callback */ + HAL_UART_AbortReceiveCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ +} + +/** + * @brief TX interrupt handler for 7 or 8 bits data word length . + * @note Function is called under interruption only, once + * interruptions have been enabled by HAL_UART_Transmit_IT(). + * @param huart UART handle. + * @retval None + */ +static void UART_TxISR_8BIT(UART_HandleTypeDef *huart) +{ + /* Check that a Tx process is ongoing */ + if (huart->gState == HAL_UART_STATE_BUSY_TX) + { + if (huart->TxXferCount == 0U) + { + /* Disable the UART Transmit Data Register Empty Interrupt */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_TXEIE_TXFNFIE); + + /* Enable the UART Transmit Complete Interrupt */ + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_TCIE); + } + else + { + huart->Instance->TDR = (uint8_t)(*huart->pTxBuffPtr & (uint8_t)0xFF); + huart->pTxBuffPtr++; + huart->TxXferCount--; + } + } +} + +/** + * @brief TX interrupt handler for 9 bits data word length. + * @note Function is called under interruption only, once + * interruptions have been enabled by HAL_UART_Transmit_IT(). + * @param huart UART handle. + * @retval None + */ +static void UART_TxISR_16BIT(UART_HandleTypeDef *huart) +{ + const uint16_t *tmp; + + /* Check that a Tx process is ongoing */ + if (huart->gState == HAL_UART_STATE_BUSY_TX) + { + if (huart->TxXferCount == 0U) + { + /* Disable the UART Transmit Data Register Empty Interrupt */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_TXEIE_TXFNFIE); + + /* Enable the UART Transmit Complete Interrupt */ + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_TCIE); + } + else + { + tmp = (const uint16_t *) huart->pTxBuffPtr; + huart->Instance->TDR = (((uint32_t)(*tmp)) & 0x01FFUL); + huart->pTxBuffPtr += 2U; + huart->TxXferCount--; + } + } +} + +/** + * @brief TX interrupt handler for 7 or 8 bits data word length and FIFO mode is enabled. + * @note Function is called under interruption only, once + * interruptions have been enabled by HAL_UART_Transmit_IT(). + * @param huart UART handle. + * @retval None + */ +static void UART_TxISR_8BIT_FIFOEN(UART_HandleTypeDef *huart) +{ + uint16_t nb_tx_data; + + /* Check that a Tx process is ongoing */ + if (huart->gState == HAL_UART_STATE_BUSY_TX) + { + for (nb_tx_data = huart->NbTxDataToProcess ; nb_tx_data > 0U ; nb_tx_data--) + { + if (huart->TxXferCount == 0U) + { + /* Disable the TX FIFO threshold interrupt */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_TXFTIE); + + /* Enable the UART Transmit Complete Interrupt */ + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_TCIE); + + break; /* force exit loop */ + } + else if (READ_BIT(huart->Instance->ISR, USART_ISR_TXE_TXFNF) != 0U) + { + huart->Instance->TDR = (uint8_t)(*huart->pTxBuffPtr & (uint8_t)0xFF); + huart->pTxBuffPtr++; + huart->TxXferCount--; + } + else + { + /* Nothing to do */ + } + } + } +} + +/** + * @brief TX interrupt handler for 9 bits data word length and FIFO mode is enabled. + * @note Function is called under interruption only, once + * interruptions have been enabled by HAL_UART_Transmit_IT(). + * @param huart UART handle. + * @retval None + */ +static void UART_TxISR_16BIT_FIFOEN(UART_HandleTypeDef *huart) +{ + const uint16_t *tmp; + uint16_t nb_tx_data; + + /* Check that a Tx process is ongoing */ + if (huart->gState == HAL_UART_STATE_BUSY_TX) + { + for (nb_tx_data = huart->NbTxDataToProcess ; nb_tx_data > 0U ; nb_tx_data--) + { + if (huart->TxXferCount == 0U) + { + /* Disable the TX FIFO threshold interrupt */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_TXFTIE); + + /* Enable the UART Transmit Complete Interrupt */ + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_TCIE); + + break; /* force exit loop */ + } + else if (READ_BIT(huart->Instance->ISR, USART_ISR_TXE_TXFNF) != 0U) + { + tmp = (const uint16_t *) huart->pTxBuffPtr; + huart->Instance->TDR = (((uint32_t)(*tmp)) & 0x01FFUL); + huart->pTxBuffPtr += 2U; + huart->TxXferCount--; + } + else + { + /* Nothing to do */ + } + } + } +} + +/** + * @brief Wrap up transmission in non-blocking mode. + * @param huart pointer to a UART_HandleTypeDef structure that contains + * the configuration information for the specified UART module. + * @retval None + */ +static void UART_EndTransmit_IT(UART_HandleTypeDef *huart) +{ + /* Disable the UART Transmit Complete Interrupt */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_TCIE); + + /* Tx process is ended, restore huart->gState to Ready */ + huart->gState = HAL_UART_STATE_READY; + + /* Cleat TxISR function pointer */ + huart->TxISR = NULL; + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Tx complete callback*/ + huart->TxCpltCallback(huart); +#else + /*Call legacy weak Tx complete callback*/ + HAL_UART_TxCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ +} + +/** + * @brief RX interrupt handler for 7 or 8 bits data word length . + * @param huart UART handle. + * @retval None + */ +static void UART_RxISR_8BIT(UART_HandleTypeDef *huart) +{ + uint16_t uhMask = huart->Mask; + uint16_t uhdata; + + /* Check that a Rx process is ongoing */ + if (huart->RxState == HAL_UART_STATE_BUSY_RX) + { + uhdata = (uint16_t) READ_REG(huart->Instance->RDR); + *huart->pRxBuffPtr = (uint8_t)(uhdata & (uint8_t)uhMask); + huart->pRxBuffPtr++; + huart->RxXferCount--; + + if (huart->RxXferCount == 0U) + { + /* Disable the UART Parity Error Interrupt and RXNE interrupts */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE_RXFNEIE | USART_CR1_PEIE)); + + /* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE); + + /* Rx process is completed, restore huart->RxState to Ready */ + huart->RxState = HAL_UART_STATE_READY; + + /* Clear RxISR function pointer */ + huart->RxISR = NULL; + + /* Initialize type of RxEvent to Transfer Complete */ + huart->RxEventType = HAL_UART_RXEVENT_TC; + + if (!(IS_LPUART_INSTANCE(huart->Instance))) + { + /* Check that USART RTOEN bit is set */ + if (READ_BIT(huart->Instance->CR2, USART_CR2_RTOEN) != 0U) + { + /* Enable the UART Receiver Timeout Interrupt */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_RTOIE); + } + } + + /* Check current reception Mode : + If Reception till IDLE event has been selected : */ + if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE) + { + /* Set reception type to Standard */ + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + /* Disable IDLE interrupt */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_IDLEIE); + + if (__HAL_UART_GET_FLAG(huart, UART_FLAG_IDLE) == SET) + { + /* Clear IDLE Flag */ + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_IDLEF); + } + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Rx Event callback*/ + huart->RxEventCallback(huart, huart->RxXferSize); +#else + /*Call legacy weak Rx Event callback*/ + HAL_UARTEx_RxEventCallback(huart, huart->RxXferSize); +#endif /* (USE_HAL_UART_REGISTER_CALLBACKS) */ + } + else + { + /* Standard reception API called */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Rx complete callback*/ + huart->RxCpltCallback(huart); +#else + /*Call legacy weak Rx complete callback*/ + HAL_UART_RxCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + } + } + } + else + { + /* Clear RXNE interrupt flag */ + __HAL_UART_SEND_REQ(huart, UART_RXDATA_FLUSH_REQUEST); + } +} + +/** + * @brief RX interrupt handler for 9 bits data word length . + * @note Function is called under interruption only, once + * interruptions have been enabled by HAL_UART_Receive_IT() + * @param huart UART handle. + * @retval None + */ +static void UART_RxISR_16BIT(UART_HandleTypeDef *huart) +{ + uint16_t *tmp; + uint16_t uhMask = huart->Mask; + uint16_t uhdata; + + /* Check that a Rx process is ongoing */ + if (huart->RxState == HAL_UART_STATE_BUSY_RX) + { + uhdata = (uint16_t) READ_REG(huart->Instance->RDR); + tmp = (uint16_t *) huart->pRxBuffPtr ; + *tmp = (uint16_t)(uhdata & uhMask); + huart->pRxBuffPtr += 2U; + huart->RxXferCount--; + + if (huart->RxXferCount == 0U) + { + /* Disable the UART Parity Error Interrupt and RXNE interrupt*/ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE_RXFNEIE | USART_CR1_PEIE)); + + /* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE); + + /* Rx process is completed, restore huart->RxState to Ready */ + huart->RxState = HAL_UART_STATE_READY; + + /* Clear RxISR function pointer */ + huart->RxISR = NULL; + + /* Initialize type of RxEvent to Transfer Complete */ + huart->RxEventType = HAL_UART_RXEVENT_TC; + + if (!(IS_LPUART_INSTANCE(huart->Instance))) + { + /* Check that USART RTOEN bit is set */ + if (READ_BIT(huart->Instance->CR2, USART_CR2_RTOEN) != 0U) + { + /* Enable the UART Receiver Timeout Interrupt */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_RTOIE); + } + } + + /* Check current reception Mode : + If Reception till IDLE event has been selected : */ + if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE) + { + /* Set reception type to Standard */ + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + /* Disable IDLE interrupt */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_IDLEIE); + + if (__HAL_UART_GET_FLAG(huart, UART_FLAG_IDLE) == SET) + { + /* Clear IDLE Flag */ + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_IDLEF); + } + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Rx Event callback*/ + huart->RxEventCallback(huart, huart->RxXferSize); +#else + /*Call legacy weak Rx Event callback*/ + HAL_UARTEx_RxEventCallback(huart, huart->RxXferSize); +#endif /* (USE_HAL_UART_REGISTER_CALLBACKS) */ + } + else + { + /* Standard reception API called */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Rx complete callback*/ + huart->RxCpltCallback(huart); +#else + /*Call legacy weak Rx complete callback*/ + HAL_UART_RxCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + } + } + } + else + { + /* Clear RXNE interrupt flag */ + __HAL_UART_SEND_REQ(huart, UART_RXDATA_FLUSH_REQUEST); + } +} + +/** + * @brief RX interrupt handler for 7 or 8 bits data word length and FIFO mode is enabled. + * @note Function is called under interruption only, once + * interruptions have been enabled by HAL_UART_Receive_IT() + * @param huart UART handle. + * @retval None + */ +static void UART_RxISR_8BIT_FIFOEN(UART_HandleTypeDef *huart) +{ + uint16_t uhMask = huart->Mask; + uint16_t uhdata; + uint16_t nb_rx_data; + uint16_t rxdatacount; + uint32_t isrflags = READ_REG(huart->Instance->ISR); + uint32_t cr1its = READ_REG(huart->Instance->CR1); + uint32_t cr3its = READ_REG(huart->Instance->CR3); + + /* Check that a Rx process is ongoing */ + if (huart->RxState == HAL_UART_STATE_BUSY_RX) + { + nb_rx_data = huart->NbRxDataToProcess; + while ((nb_rx_data > 0U) && ((isrflags & USART_ISR_RXNE_RXFNE) != 0U)) + { + uhdata = (uint16_t) READ_REG(huart->Instance->RDR); + *huart->pRxBuffPtr = (uint8_t)(uhdata & (uint8_t)uhMask); + huart->pRxBuffPtr++; + huart->RxXferCount--; + isrflags = READ_REG(huart->Instance->ISR); + + /* If some non blocking errors occurred */ + if ((isrflags & (USART_ISR_PE | USART_ISR_FE | USART_ISR_NE)) != 0U) + { + /* UART parity error interrupt occurred -------------------------------------*/ + if (((isrflags & USART_ISR_PE) != 0U) && ((cr1its & USART_CR1_PEIE) != 0U)) + { + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_PEF); + + huart->ErrorCode |= HAL_UART_ERROR_PE; + } + + /* UART frame error interrupt occurred --------------------------------------*/ + if (((isrflags & USART_ISR_FE) != 0U) && ((cr3its & USART_CR3_EIE) != 0U)) + { + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_FEF); + + huart->ErrorCode |= HAL_UART_ERROR_FE; + } + + /* UART noise error interrupt occurred --------------------------------------*/ + if (((isrflags & USART_ISR_NE) != 0U) && ((cr3its & USART_CR3_EIE) != 0U)) + { + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_NEF); + + huart->ErrorCode |= HAL_UART_ERROR_NE; + } + + /* Call UART Error Call back function if need be ----------------------------*/ + if (huart->ErrorCode != HAL_UART_ERROR_NONE) + { + /* Non Blocking error : transfer could go on. + Error is notified to user through user error callback */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered error callback*/ + huart->ErrorCallback(huart); +#else + /*Call legacy weak error callback*/ + HAL_UART_ErrorCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + huart->ErrorCode = HAL_UART_ERROR_NONE; + } + } + + if (huart->RxXferCount == 0U) + { + /* Disable the UART Parity Error Interrupt and RXFT interrupt*/ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_PEIE); + + /* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) + and RX FIFO Threshold interrupt */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, (USART_CR3_EIE | USART_CR3_RXFTIE)); + + /* Rx process is completed, restore huart->RxState to Ready */ + huart->RxState = HAL_UART_STATE_READY; + + /* Clear RxISR function pointer */ + huart->RxISR = NULL; + + /* Initialize type of RxEvent to Transfer Complete */ + huart->RxEventType = HAL_UART_RXEVENT_TC; + + if (!(IS_LPUART_INSTANCE(huart->Instance))) + { + /* Check that USART RTOEN bit is set */ + if (READ_BIT(huart->Instance->CR2, USART_CR2_RTOEN) != 0U) + { + /* Enable the UART Receiver Timeout Interrupt */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_RTOIE); + } + } + + /* Check current reception Mode : + If Reception till IDLE event has been selected : */ + if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE) + { + /* Set reception type to Standard */ + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + /* Disable IDLE interrupt */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_IDLEIE); + + if (__HAL_UART_GET_FLAG(huart, UART_FLAG_IDLE) == SET) + { + /* Clear IDLE Flag */ + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_IDLEF); + } + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Rx Event callback*/ + huart->RxEventCallback(huart, huart->RxXferSize); +#else + /*Call legacy weak Rx Event callback*/ + HAL_UARTEx_RxEventCallback(huart, huart->RxXferSize); +#endif /* (USE_HAL_UART_REGISTER_CALLBACKS) */ + } + else + { + /* Standard reception API called */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Rx complete callback*/ + huart->RxCpltCallback(huart); +#else + /*Call legacy weak Rx complete callback*/ + HAL_UART_RxCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + } + } + } + + /* When remaining number of bytes to receive is less than the RX FIFO + threshold, next incoming frames are processed as if FIFO mode was + disabled (i.e. one interrupt per received frame). + */ + rxdatacount = huart->RxXferCount; + if ((rxdatacount != 0U) && (rxdatacount < huart->NbRxDataToProcess)) + { + /* Disable the UART RXFT interrupt*/ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_RXFTIE); + + /* Update the RxISR function pointer */ + huart->RxISR = UART_RxISR_8BIT; + + /* Enable the UART Data Register Not Empty interrupt */ + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_RXNEIE_RXFNEIE); + } + } + else + { + /* Clear RXNE interrupt flag */ + __HAL_UART_SEND_REQ(huart, UART_RXDATA_FLUSH_REQUEST); + } +} + +/** + * @brief RX interrupt handler for 9 bits data word length and FIFO mode is enabled. + * @note Function is called under interruption only, once + * interruptions have been enabled by HAL_UART_Receive_IT() + * @param huart UART handle. + * @retval None + */ +static void UART_RxISR_16BIT_FIFOEN(UART_HandleTypeDef *huart) +{ + uint16_t *tmp; + uint16_t uhMask = huart->Mask; + uint16_t uhdata; + uint16_t nb_rx_data; + uint16_t rxdatacount; + uint32_t isrflags = READ_REG(huart->Instance->ISR); + uint32_t cr1its = READ_REG(huart->Instance->CR1); + uint32_t cr3its = READ_REG(huart->Instance->CR3); + + /* Check that a Rx process is ongoing */ + if (huart->RxState == HAL_UART_STATE_BUSY_RX) + { + nb_rx_data = huart->NbRxDataToProcess; + while ((nb_rx_data > 0U) && ((isrflags & USART_ISR_RXNE_RXFNE) != 0U)) + { + uhdata = (uint16_t) READ_REG(huart->Instance->RDR); + tmp = (uint16_t *) huart->pRxBuffPtr ; + *tmp = (uint16_t)(uhdata & uhMask); + huart->pRxBuffPtr += 2U; + huart->RxXferCount--; + isrflags = READ_REG(huart->Instance->ISR); + + /* If some non blocking errors occurred */ + if ((isrflags & (USART_ISR_PE | USART_ISR_FE | USART_ISR_NE)) != 0U) + { + /* UART parity error interrupt occurred -------------------------------------*/ + if (((isrflags & USART_ISR_PE) != 0U) && ((cr1its & USART_CR1_PEIE) != 0U)) + { + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_PEF); + + huart->ErrorCode |= HAL_UART_ERROR_PE; + } + + /* UART frame error interrupt occurred --------------------------------------*/ + if (((isrflags & USART_ISR_FE) != 0U) && ((cr3its & USART_CR3_EIE) != 0U)) + { + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_FEF); + + huart->ErrorCode |= HAL_UART_ERROR_FE; + } + + /* UART noise error interrupt occurred --------------------------------------*/ + if (((isrflags & USART_ISR_NE) != 0U) && ((cr3its & USART_CR3_EIE) != 0U)) + { + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_NEF); + + huart->ErrorCode |= HAL_UART_ERROR_NE; + } + + /* Call UART Error Call back function if need be ----------------------------*/ + if (huart->ErrorCode != HAL_UART_ERROR_NONE) + { + /* Non Blocking error : transfer could go on. + Error is notified to user through user error callback */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered error callback*/ + huart->ErrorCallback(huart); +#else + /*Call legacy weak error callback*/ + HAL_UART_ErrorCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + huart->ErrorCode = HAL_UART_ERROR_NONE; + } + } + + if (huart->RxXferCount == 0U) + { + /* Disable the UART Parity Error Interrupt and RXFT interrupt*/ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_PEIE); + + /* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) + and RX FIFO Threshold interrupt */ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, (USART_CR3_EIE | USART_CR3_RXFTIE)); + + /* Rx process is completed, restore huart->RxState to Ready */ + huart->RxState = HAL_UART_STATE_READY; + + /* Clear RxISR function pointer */ + huart->RxISR = NULL; + + /* Initialize type of RxEvent to Transfer Complete */ + huart->RxEventType = HAL_UART_RXEVENT_TC; + + if (!(IS_LPUART_INSTANCE(huart->Instance))) + { + /* Check that USART RTOEN bit is set */ + if (READ_BIT(huart->Instance->CR2, USART_CR2_RTOEN) != 0U) + { + /* Enable the UART Receiver Timeout Interrupt */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_RTOIE); + } + } + + /* Check current reception Mode : + If Reception till IDLE event has been selected : */ + if (huart->ReceptionType == HAL_UART_RECEPTION_TOIDLE) + { + /* Set reception type to Standard */ + huart->ReceptionType = HAL_UART_RECEPTION_STANDARD; + + /* Disable IDLE interrupt */ + ATOMIC_CLEAR_BIT(huart->Instance->CR1, USART_CR1_IDLEIE); + + if (__HAL_UART_GET_FLAG(huart, UART_FLAG_IDLE) == SET) + { + /* Clear IDLE Flag */ + __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_IDLEF); + } + +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Rx Event callback*/ + huart->RxEventCallback(huart, huart->RxXferSize); +#else + /*Call legacy weak Rx Event callback*/ + HAL_UARTEx_RxEventCallback(huart, huart->RxXferSize); +#endif /* (USE_HAL_UART_REGISTER_CALLBACKS) */ + } + else + { + /* Standard reception API called */ +#if (USE_HAL_UART_REGISTER_CALLBACKS == 1) + /*Call registered Rx complete callback*/ + huart->RxCpltCallback(huart); +#else + /*Call legacy weak Rx complete callback*/ + HAL_UART_RxCpltCallback(huart); +#endif /* USE_HAL_UART_REGISTER_CALLBACKS */ + } + } + } + + /* When remaining number of bytes to receive is less than the RX FIFO + threshold, next incoming frames are processed as if FIFO mode was + disabled (i.e. one interrupt per received frame). + */ + rxdatacount = huart->RxXferCount; + if ((rxdatacount != 0U) && (rxdatacount < huart->NbRxDataToProcess)) + { + /* Disable the UART RXFT interrupt*/ + ATOMIC_CLEAR_BIT(huart->Instance->CR3, USART_CR3_RXFTIE); + + /* Update the RxISR function pointer */ + huart->RxISR = UART_RxISR_16BIT; + + /* Enable the UART Data Register Not Empty interrupt */ + ATOMIC_SET_BIT(huart->Instance->CR1, USART_CR1_RXNEIE_RXFNEIE); + } + } + else + { + /* Clear RXNE interrupt flag */ + __HAL_UART_SEND_REQ(huart, UART_RXDATA_FLUSH_REQUEST); + } +} + +/** + * @} + */ + +#endif /* HAL_UART_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */ + -- cgit v1.2.3