From 2628932a40d769d8d0180ba6fed1e7b9b2718982 Mon Sep 17 00:00:00 2001 From: jaseg Date: Sun, 3 May 2020 19:53:02 +0200 Subject: minkbd: repo restructure --- .../STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_uart.c | 3738 -------------------- 1 file changed, 3738 deletions(-) delete mode 100644 Blink/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_uart.c (limited to 'Blink/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_uart.c') diff --git a/Blink/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_uart.c b/Blink/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_uart.c deleted file mode 100644 index cc0a879..0000000 --- a/Blink/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_uart.c +++ /dev/null @@ -1,3738 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f0xx_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 - * - * - @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, 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 @ref HAL_UART_RegisterCallback() to register a user callback. - Function @ref 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 @ref HAL_UART_UnRegisterCallback() to reset a callback to the default - weak (surcharged) function. - @ref 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. - - [..] - By default, after the @ref HAL_UART_Init() and when the state is HAL_UART_STATE_RESET - all callbacks are set to the corresponding weak (surcharged) functions: - examples @ref HAL_UART_TxCpltCallback(), @ref HAL_UART_RxHalfCpltCallback(). - Exception done for MspInit and MspDeInit functions that are respectively - reset to the legacy weak (surcharged) functions in the @ref HAL_UART_Init() - and @ref HAL_UART_DeInit() only when these callbacks are null (not registered beforehand). - If not, MspInit or MspDeInit are not null, the @ref HAL_UART_Init() and @ref 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 @ref HAL_UART_RegisterCallback() before calling @ref HAL_UART_DeInit() - or @ref 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 - ****************************************************************************** - * @attention - * - *

© Copyright (c) 2016 STMicroelectronics. - * All rights reserved.

- * - * This software component is licensed by ST under BSD 3-Clause license, - * the "License"; You may not use this file except in compliance with the - * License. You may obtain a copy of the License at: - * opensource.org/licenses/BSD-3-Clause - * - ****************************************************************************** - */ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f0xx_hal.h" - -/** @addtogroup STM32F0xx_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 )) /*!< 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)) /*!< UART or USART CR3 fields of parameters set by UART_SetConfig API */ - - -#define UART_BRR_MIN 0x10U /* UART BRR minimum authorized value */ -#define UART_BRR_MAX 0x0000FFFFU /* UART BRR maximum authorized value */ - -/** - * @} - */ - -/* Private macros ------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* 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_EndTransmit_IT(UART_HandleTypeDef *huart); -static void UART_RxISR_8BIT(UART_HandleTypeDef *huart); -static void UART_RxISR_16BIT(UART_HandleTypeDef *huart); -/** - * @} - */ - -/* 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)); - } - - 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 (if LIN is supported) and CLKEN bits in the USART_CR2 register, - - SCEN (if Smartcard is supported), HDSEL and IREN (if IrDA is supported) bits in the USART_CR3 register.*/ -#if defined (USART_CR2_LINEN) - CLEAR_BIT(huart->Instance->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN)); -#else - CLEAR_BIT(huart->Instance->CR2, USART_CR2_CLKEN); -#endif /* USART_CR2_LINEN */ -#if defined (USART_CR3_SCEN) -#if defined (USART_CR3_IREN) - CLEAR_BIT(huart->Instance->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN)); -#else - CLEAR_BIT(huart->Instance->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL)); -#endif /* USART_CR3_IREN */ -#else -#if defined (USART_CR3_IREN) - CLEAR_BIT(huart->Instance->CR3, (USART_CR3_HDSEL | USART_CR3_IREN)); -#else - CLEAR_BIT(huart->Instance->CR3, USART_CR3_HDSEL); -#endif /* USART_CR3_IREN*/ -#endif /* USART_CR3_SCEN */ - - __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 (if LIN is supported) and CLKEN bits in the USART_CR2 register, - - SCEN (if Smartcard is supported) and IREN (if IrDA is supported) bits in the USART_CR3 register.*/ -#if defined (USART_CR2_LINEN) - CLEAR_BIT(huart->Instance->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN)); -#else - CLEAR_BIT(huart->Instance->CR2, USART_CR2_CLKEN); -#endif /* USART_CR2_LINEN */ -#if defined (USART_CR3_SCEN) -#if defined (USART_CR3_IREN) - CLEAR_BIT(huart->Instance->CR3, (USART_CR3_IREN | USART_CR3_SCEN)); -#else - CLEAR_BIT(huart->Instance->CR3, USART_CR3_SCEN); -#endif /* USART_CR3_IREN */ -#else -#if defined (USART_CR3_IREN) - CLEAR_BIT(huart->Instance->CR3, USART_CR3_IREN); -#endif /* USART_CR3_IREN */ -#endif /* 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)); -} - - -#if defined(USART_CR2_LINEN) -/** - * @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(if Smartcard is supported) and IREN(if IrDA is supported) bits in the USART_CR3 register.*/ - CLEAR_BIT(huart->Instance->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN)); -#if defined (USART_CR3_SCEN) -#if defined (USART_CR3_IREN) - CLEAR_BIT(huart->Instance->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN)); -#else - CLEAR_BIT(huart->Instance->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL)); -#endif /* USART_CR3_IREN */ -#else -#if defined (USART_CR3_IREN) - CLEAR_BIT(huart->Instance->CR3, (USART_CR3_HDSEL | USART_CR3_IREN)); -#else - CLEAR_BIT(huart->Instance->CR3, USART_CR3_HDSEL); -#endif /* USART_CR3_IREN*/ -#endif /* 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)); -} -#endif /* USART_CR2_LINEN */ - - -/** - * @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 (if LIN is supported) and CLKEN bits in the USART_CR2 register, - - SCEN (if Smartcard is supported), HDSEL and IREN (if IrDA is supported) bits in the USART_CR3 register. */ -#if defined (USART_CR2_LINEN) - CLEAR_BIT(huart->Instance->CR2, (USART_CR2_LINEN | USART_CR2_CLKEN)); -#else - CLEAR_BIT(huart->Instance->CR2, USART_CR2_CLKEN); -#endif /* USART_CR2_LINEN */ -#if defined (USART_CR3_SCEN) -#if defined (USART_CR3_IREN) - CLEAR_BIT(huart->Instance->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN)); -#else - CLEAR_BIT(huart->Instance->CR3, (USART_CR3_SCEN | USART_CR3_HDSEL)); -#endif /* USART_CR3_IREN */ -#else -#if defined (USART_CR3_IREN) - CLEAR_BIT(huart->Instance->CR3, (USART_CR3_HDSEL | USART_CR3_IREN)); -#else - CLEAR_BIT(huart->Instance->CR3, USART_CR3_HDSEL); -#endif /* USART_CR3_IREN */ -#endif /* USART_CR3_SCEN */ - - 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)); - - 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; - - __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 - * @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; - } - - __HAL_LOCK(huart); - - 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_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; - } - - __HAL_UNLOCK(huart); - - return status; -} - -/** - * @brief Unregister an UART Callback - * UART callaback is redirected to the weak predefined callback - * @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; - - __HAL_LOCK(huart); - - 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; - -#if defined(USART_CR1_UESM) - case HAL_UART_WAKEUP_CB_ID : - huart->WakeupCallback = HAL_UARTEx_WakeupCallback; /* Legacy weak WakeupCallback */ - break; - -#endif /* USART_CR1_UESM */ - 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; - } - - __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() - - (#) 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 UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), - * address of user data buffer containing data to be sent, should be aligned on a half word frontier (16 bits) - * (as sent data will be handled using u16 pointer cast). Depending on compilation chain, - * use of specific alignment compilation directives or pragmas might be required to ensure proper alignment for 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. - * @param Timeout Timeout duration. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size, uint32_t Timeout) -{ - uint8_t *pdata8bits; - 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; - } - - /* In case of 9bits/No Parity transfer, pData buffer provided as input parameter - should be aligned on a u16 frontier, as data to be filled into TDR will be - handled through a u16 cast. */ - if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE)) - { - if ((((uint32_t)pData) & 1U) != 0U) - { - return HAL_ERROR; - } - } - - __HAL_LOCK(huart); - - huart->ErrorCode = HAL_UART_ERROR_NONE; - huart->gState = HAL_UART_STATE_BUSY_TX; - - /* Init tickstart for timeout managment*/ - 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 = (uint16_t *) pData; - } - else - { - pdata8bits = pData; - pdata16bits = NULL; - } - - while (huart->TxXferCount > 0U) - { - if (UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK) - { - 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) - { - return HAL_TIMEOUT; - } - - /* At end of Tx process, restore huart->gState to Ready */ - huart->gState = HAL_UART_STATE_READY; - - __HAL_UNLOCK(huart); - - 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 UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), - * address of user data buffer for storing data to be received, should be aligned on a half word frontier (16 bits) - * (as received data will be handled using u16 pointer cast). Depending on compilation chain, - * use of specific alignment compilation directives or pragmas might be required to ensure proper alignment for 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. - * @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; - } - - /* In case of 9bits/No Parity transfer, pData buffer provided as input parameter - should be aligned on a u16 frontier, as data to be received from RDR will be - handled through a u16 cast. */ - if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE)) - { - if ((((uint32_t)pData) & 1U) != 0U) - { - return HAL_ERROR; - } - } - - __HAL_LOCK(huart); - - huart->ErrorCode = HAL_UART_ERROR_NONE; - huart->RxState = HAL_UART_STATE_BUSY_RX; - - /* Init tickstart for timeout managment*/ - 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) - { - 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; - - __HAL_UNLOCK(huart); - - 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. - * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), - * address of user data buffer containing data to be sent, should be aligned on a half word frontier (16 bits) - * (as sent data will be handled using u16 pointer cast). Depending on compilation chain, - * use of specific alignment compilation directives or pragmas might be required to ensure proper alignment for 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, 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; - } - - /* In case of 9bits/No Parity transfer, pData buffer provided as input parameter - should be aligned on a u16 frontier, as data to be filled into TDR will be - handled through a u16 cast. */ - if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE)) - { - if ((((uint32_t)pData) & 1U) != 0U) - { - return HAL_ERROR; - } - } - - __HAL_LOCK(huart); - - 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; - - /* 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; - } - - __HAL_UNLOCK(huart); - - /* Enable the Transmit Data Register Empty interrupt */ - SET_BIT(huart->Instance->CR1, USART_CR1_TXEIE); - - 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. - * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), - * address of user data buffer for storing data to be received, should be aligned on a half word frontier (16 bits) - * (as received data will be handled using u16 pointer cast). Depending on compilation chain, - * use of specific alignment compilation directives or pragmas might be required to ensure proper alignment for 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; - } - - /* In case of 9bits/No Parity transfer, pData buffer provided as input parameter - should be aligned on a u16 frontier, as data to be received from RDR will be - handled through a u16 cast. */ - if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE)) - { - if ((((uint32_t)pData) & 1U) != 0U) - { - return HAL_ERROR; - } - } - - __HAL_LOCK(huart); - - 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) */ - SET_BIT(huart->Instance->CR3, USART_CR3_EIE); - - /* 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; - } - - __HAL_UNLOCK(huart); - - /* Enable the UART Parity Error interrupt and Data Register Not Empty interrupt */ - SET_BIT(huart->Instance->CR1, USART_CR1_PEIE | USART_CR1_RXNEIE); - - return HAL_OK; - } - 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. - * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), - * address of user data buffer containing data to be sent, should be aligned on a half word frontier (16 bits) - * (as sent data will be handled by DMA from halfword frontier). Depending on compilation chain, - * use of specific alignment compilation directives or pragmas might be required to ensure proper alignment for 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, 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; - } - - /* In case of 9bits/No Parity transfer, pData buffer provided as input parameter - should be aligned on a u16 frontier, as data copy into TDR will be - handled by DMA from a u16 frontier. */ - if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE)) - { - if ((((uint32_t)pData) & 1U) != 0U) - { - return HAL_ERROR; - } - } - - __HAL_LOCK(huart); - - 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; - - __HAL_UNLOCK(huart); - - /* 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); - - __HAL_UNLOCK(huart); - - /* Enable the DMA transfer for transmit request by setting the DMAT bit - in the UART CR3 register */ - 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. - * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), - * address of user data buffer for storing data to be received, should be aligned on a half word frontier (16 bits) - * (as received data will be handled by DMA from halfword frontier). Depending on compilation chain, - * use of specific alignment compilation directives or pragmas might be required to ensure proper alignment for 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; - } - - /* In case of 9bits/No Parity transfer, pData buffer provided as input parameter - should be aligned on a u16 frontier, as data copy from RDR will be - handled by DMA from a u16 frontier. */ - if ((huart->Init.WordLength == UART_WORDLENGTH_9B) && (huart->Init.Parity == UART_PARITY_NONE)) - { - if ((((uint32_t)pData) & 1U) != 0U) - { - return HAL_ERROR; - } - } - - __HAL_LOCK(huart); - - 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; - - __HAL_UNLOCK(huart); - - /* Restore huart->gState to ready */ - huart->gState = HAL_UART_STATE_READY; - - return HAL_ERROR; - } - } - __HAL_UNLOCK(huart); - - /* Enable the UART Parity Error Interrupt */ - SET_BIT(huart->Instance->CR1, USART_CR1_PEIE); - - /* Enable the UART Error Interrupt: (Frame error, noise error, overrun error) */ - 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 */ - SET_BIT(huart->Instance->CR3, USART_CR3_DMAR); - - return HAL_OK; - } - 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; - - __HAL_LOCK(huart); - - if ((HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT)) && - (gstate == HAL_UART_STATE_BUSY_TX)) - { - /* Disable the UART DMA Tx request */ - 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 */ - CLEAR_BIT(huart->Instance->CR1, USART_CR1_PEIE); - CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE); - - /* Disable the UART DMA Rx request */ - CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAR); - } - - __HAL_UNLOCK(huart); - - return HAL_OK; -} - -/** - * @brief Resume the DMA Transfer. - * @param huart UART handle. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart) -{ - __HAL_LOCK(huart); - - if (huart->gState == HAL_UART_STATE_BUSY_TX) - { - /* Enable the UART DMA Tx request */ - 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); - - /* Reenable PE and ERR (Frame error, noise error, overrun error) interrupts */ - SET_BIT(huart->Instance->CR1, USART_CR1_PEIE); - SET_BIT(huart->Instance->CR3, USART_CR3_EIE); - - /* Enable the UART DMA Rx request */ - SET_BIT(huart->Instance->CR3, USART_CR3_DMAR); - } - - __HAL_UNLOCK(huart); - - 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)) - { - 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)) - { - 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 TXEIE, TCIE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ - CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE)); - CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE); - - /* Disable the UART DMA Tx request if enabled */ - if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT)) - { - 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; - } - } - } - } - - /* Disable the UART DMA Rx request if enabled */ - if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) - { - 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); - - - /* 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->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 TXEIE and TCIE interrupts */ - CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE)); - - /* Disable the UART DMA Tx request if enabled */ - if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT)) - { - 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; - - - /* 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 RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ - CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE)); - CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE); - - /* Disable the UART DMA Rx request if enabled */ - if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) - { - 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; - - 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 */ - CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE)); - CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE); - - /* 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; - } - } - - /* Disable the UART DMA Tx request if enabled */ - if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT)) - { - /* Disable DMA Tx at UART level */ - 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; - } - } - } - - /* Disable the UART DMA Rx request if enabled */ - if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) - { - 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); - - - /* 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; - - /* 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 */ - CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE)); - - /* Disable the UART DMA Tx request if enabled */ - if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAT)) - { - 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; - - - /* 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 */ - CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE)); - CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE); - - /* Disable the UART DMA Rx request if enabled */ - if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) - { - 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; - - /* 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; - - /* 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) != 0U) - && ((cr1its & USART_CR1_RXNEIE) != 0U)) - { - if (huart->RxISR != NULL) - { - huart->RxISR(huart); - } - return; - } - } - - /* If some errors occur */ - if ((errorflags != 0U) - && (((cr3its & USART_CR3_EIE) != 0U) - || ((cr1its & (USART_CR1_RXNEIE | USART_CR1_PEIE)) != 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) != 0U) || - ((cr3its & 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) != 0U) - && ((cr1its & USART_CR1_RXNEIE) != 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); - - /* Disable the UART DMA Rx request if enabled */ - if (HAL_IS_BIT_SET(huart->Instance->CR3, USART_CR3_DMAR)) - { - 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 */ -#if defined(USART_CR1_UESM) - - /* 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; - } -#endif /* USART_CR1_UESM */ - - /* UART in mode Transmitter ------------------------------------------------*/ - if (((isrflags & USART_ISR_TXE) != 0U) - && ((cr1its & USART_CR1_TXEIE) != 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; - } - -} - -/** - * @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. - */ -} - -/** - * @} - */ - -/** @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) -{ - 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 (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; - } -} - -/** - * @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 (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; - } -} - -/** - * @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 */ - 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 */ - 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 */ - 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 */ - 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 */ - 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 */ - SET_BIT(huart->Instance->CR1, USART_CR1_RE); - - huart->gState = HAL_UART_STATE_READY; - - __HAL_UNLOCK(huart); - - return HAL_OK; -} - - -#if defined(USART_CR2_LINEN) -/** - * @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; -} -#endif /* USART_CR2_LINEN */ - -/** - * @} - */ - -/** @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(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(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 */ -#if defined(USART_CR1_UESM) - huart->WakeupCallback = HAL_UARTEx_WakeupCallback; /* Legacy weak WakeupCallback */ -#endif /* USART_CR1_UESM */ - -} -#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 = 0x00000000U; - HAL_StatusTypeDef ret = HAL_OK; - uint32_t pclk; - - /* Check the parameters */ - assert_param(IS_UART_BAUDRATE(huart->Init.BaudRate)); - assert_param(IS_UART_WORD_LENGTH(huart->Init.WordLength)); - 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)); - - /*-------------------------- 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; - - tmpreg |= huart->Init.OneBitSampling; - MODIFY_REG(huart->Instance->CR3, USART_CR3_FIELDS, tmpreg); - - - /*-------------------------- USART BRR Configuration -----------------------*/ - UART_GETCLOCKSOURCE(huart, clocksource); - - if (huart->Init.OverSampling == UART_OVERSAMPLING_8) - { - switch (clocksource) - { - case UART_CLOCKSOURCE_PCLK1: - pclk = HAL_RCC_GetPCLK1Freq(); - usartdiv = (uint16_t)(UART_DIV_SAMPLING8(pclk, huart->Init.BaudRate)); - break; - case UART_CLOCKSOURCE_HSI: - usartdiv = (uint16_t)(UART_DIV_SAMPLING8(HSI_VALUE, huart->Init.BaudRate)); - break; - case UART_CLOCKSOURCE_SYSCLK: - pclk = HAL_RCC_GetSysClockFreq(); - usartdiv = (uint16_t)(UART_DIV_SAMPLING8(pclk, huart->Init.BaudRate)); - break; - case UART_CLOCKSOURCE_LSE: - usartdiv = (uint16_t)(UART_DIV_SAMPLING8(LSE_VALUE, huart->Init.BaudRate)); - break; - default: - ret = HAL_ERROR; - break; - } - - /* USARTDIV must be greater than or equal to 0d16 */ - 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_PCLK1: - pclk = HAL_RCC_GetPCLK1Freq(); - usartdiv = (uint16_t)(UART_DIV_SAMPLING16(pclk, huart->Init.BaudRate)); - break; - case UART_CLOCKSOURCE_HSI: - usartdiv = (uint16_t)(UART_DIV_SAMPLING16(HSI_VALUE, huart->Init.BaudRate)); - break; - case UART_CLOCKSOURCE_SYSCLK: - pclk = HAL_RCC_GetSysClockFreq(); - usartdiv = (uint16_t)(UART_DIV_SAMPLING16(pclk, huart->Init.BaudRate)); - break; - case UART_CLOCKSOURCE_LSE: - usartdiv = (uint16_t)(UART_DIV_SAMPLING16(LSE_VALUE, huart->Init.BaudRate)); - break; - default: - ret = HAL_ERROR; - break; - } - - /* USARTDIV must be greater than or equal to 0d16 */ - if ((usartdiv >= UART_BRR_MIN) && (usartdiv <= UART_BRR_MAX)) - { - huart->Instance->BRR = usartdiv; - } - else - { - ret = HAL_ERROR; - } - } - - - /* 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 managment*/ - 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) - { - /* 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) - { - /* Timeout occurred */ - return HAL_TIMEOUT; - } - } - - /* Initialize the UART State */ - huart->gState = HAL_UART_STATE_READY; - huart->RxState = HAL_UART_STATE_READY; - - __HAL_UNLOCK(huart); - - return HAL_OK; -} - -/** - * @brief Handle UART Communication Timeout. - * @param huart UART handle. - * @param Flag Specifies the UART flag to check - * @param Status 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)) - { - /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ - CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE)); - CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE); - - huart->gState = HAL_UART_STATE_READY; - huart->RxState = HAL_UART_STATE_READY; - - __HAL_UNLOCK(huart); - - return HAL_TIMEOUT; - } - - if (READ_BIT(huart->Instance->CR1, USART_CR1_RE) != 0U) - { - if (__HAL_UART_GET_FLAG(huart, UART_FLAG_RTOF) == SET) - { - /* Clear Receiver Timeout flag*/ - __HAL_UART_CLEAR_FLAG(huart, UART_CLEAR_RTOF); - - /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ - CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE)); - CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE); - - huart->gState = HAL_UART_STATE_READY; - huart->RxState = HAL_UART_STATE_READY; - huart->ErrorCode = HAL_UART_ERROR_RTO; - - /* Process Unlocked */ - __HAL_UNLOCK(huart); - - return HAL_TIMEOUT; - } - } - } - } - 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 and TCIE interrupts */ - CLEAR_BIT(huart->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE)); - - /* 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 */ - CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE)); - CLEAR_BIT(huart->Instance->CR3, USART_CR3_EIE); - - /* At end of Rx process, restore huart->RxState to Ready */ - huart->RxState = HAL_UART_STATE_READY; - - /* 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 */ - CLEAR_BIT(huart->Instance->CR3, USART_CR3_DMAT); - - /* Enable the UART Transmit Complete Interrupt */ - 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 */ - CLEAR_BIT(huart->Instance->CR1, USART_CR1_PEIE); - 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 */ - 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 (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); - -#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); - - - /* Restore huart->gState and huart->RxState to Ready */ - huart->gState = HAL_UART_STATE_READY; - huart->RxState = HAL_UART_STATE_READY; - - /* 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; - - /* 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; - - - /* 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; - - /* 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 interrrupt 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 */ - CLEAR_BIT(huart->Instance->CR1, USART_CR1_TXEIE); - - /* Enable the UART Transmit Complete Interrupt */ - 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 interrrupt 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) -{ - 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 */ - CLEAR_BIT(huart->Instance->CR1, USART_CR1_TXEIE); - - /* Enable the UART Transmit Complete Interrupt */ - SET_BIT(huart->Instance->CR1, USART_CR1_TCIE); - } - else - { - tmp = (uint16_t *) huart->pTxBuffPtr; - huart->Instance->TDR = (((uint32_t)(*tmp)) & 0x01FFUL); - huart->pTxBuffPtr += 2U; - huart->TxXferCount--; - } - } -} - - -/** - * @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 */ - 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 interrrupt 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 */ - CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE)); - - /* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */ - 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; - -#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 interrrupt 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*/ - CLEAR_BIT(huart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE)); - - /* Disable the UART Error Interrupt: (Frame error, noise error, overrun error) */ - 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; - -#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); - } -} - - -/** - * @} - */ - -#endif /* HAL_UART_MODULE_ENABLED */ -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ -- cgit