From 94f94260ace13688285fc8c62687079b26c18854 Mon Sep 17 00:00:00 2001 From: jaseg Date: Sun, 20 Dec 2020 15:18:02 +0100 Subject: Submodule-cache WIP --- .../STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_usart.c | 3249 -------------------- 1 file changed, 3249 deletions(-) delete mode 100644 fw/cdc-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_usart.c (limited to 'fw/cdc-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_usart.c') diff --git a/fw/cdc-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_usart.c b/fw/cdc-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_usart.c deleted file mode 100644 index d480193..0000000 --- a/fw/cdc-dials/Drivers/STM32F0xx_HAL_Driver/Src/stm32f0xx_hal_usart.c +++ /dev/null @@ -1,3249 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f0xx_hal_usart.c - * @author MCD Application Team - * @brief USART HAL module driver. - * This file provides firmware functions to manage the following - * functionalities of the Universal Synchronous/Asynchronous Receiver Transmitter - * Peripheral (USART). - * + Initialization and de-initialization functions - * + IO operation functions - * + Peripheral Control functions - * + Peripheral State and Error functions - * - @verbatim - =============================================================================== - ##### How to use this driver ##### - =============================================================================== - [..] - The USART HAL driver can be used as follows: - - (#) Declare a USART_HandleTypeDef handle structure (eg. USART_HandleTypeDef husart). - (#) Initialize the USART low level resources by implementing the HAL_USART_MspInit() API: - (++) Enable the USARTx interface clock. - (++) USART pins configuration: - (+++) Enable the clock for the USART GPIOs. - (+++) Configure these USART pins as alternate function pull-up. - (++) NVIC configuration if you need to use interrupt process (HAL_USART_Transmit_IT(), - HAL_USART_Receive_IT() and HAL_USART_TransmitReceive_IT() APIs): - (+++) Configure the USARTx interrupt priority. - (+++) Enable the NVIC USART IRQ handle. - (++) USART interrupts handling: - -@@- The specific USART interrupts (Transmission complete interrupt, - RXNE interrupt and Error Interrupts) will be managed using the macros - __HAL_USART_ENABLE_IT() and __HAL_USART_DISABLE_IT() inside the transmit and receive process. - (++) DMA Configuration if you need to use DMA process (HAL_USART_Transmit_DMA() - HAL_USART_Receive_DMA() and HAL_USART_TransmitReceive_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 USART 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, and Mode - (Receiver/Transmitter) in the husart handle Init structure. - - (#) Initialize the USART registers by calling the HAL_USART_Init() API: - (++) This API configures also the low level Hardware GPIO, CLOCK, CORTEX...etc) - by calling the customized HAL_USART_MspInit(&husart) API. - - [..] - (@) To configure and enable/disable the USART to wake up the MCU from stop mode, resort to UART API's - HAL_UARTEx_StopModeWakeUpSourceConfig(), HAL_UARTEx_EnableStopMode() and - HAL_UARTEx_DisableStopMode() in casting the USART handle to UART type UART_HandleTypeDef. - - ##### Callback registration ##### - ================================== - - [..] - The compilation define USE_HAL_USART_REGISTER_CALLBACKS when set to 1 - allows the user to configure dynamically the driver callbacks. - - [..] - Use Function @ref HAL_USART_RegisterCallback() to register a user callback. - Function @ref HAL_USART_RegisterCallback() allows to register following callbacks: - (+) TxHalfCpltCallback : Tx Half Complete Callback. - (+) TxCpltCallback : Tx Complete Callback. - (+) RxHalfCpltCallback : Rx Half Complete Callback. - (+) RxCpltCallback : Rx Complete Callback. - (+) TxRxCpltCallback : Tx Rx Complete Callback. - (+) ErrorCallback : Error Callback. - (+) AbortCpltCallback : Abort Complete Callback. - (+) MspInitCallback : USART MspInit. - (+) MspDeInitCallback : USART 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_USART_UnRegisterCallback() to reset a callback to the default - weak (surcharged) function. - @ref HAL_USART_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. - (+) TxRxCpltCallback : Tx Rx Complete Callback. - (+) ErrorCallback : Error Callback. - (+) AbortCpltCallback : Abort Complete Callback. - (+) MspInitCallback : USART MspInit. - (+) MspDeInitCallback : USART MspDeInit. - - [..] - By default, after the @ref HAL_USART_Init() and when the state is HAL_USART_STATE_RESET - all callbacks are set to the corresponding weak (surcharged) functions: - examples @ref HAL_USART_TxCpltCallback(), @ref HAL_USART_RxHalfCpltCallback(). - Exception done for MspInit and MspDeInit functions that are respectively - reset to the legacy weak (surcharged) functions in the @ref HAL_USART_Init() - and @ref HAL_USART_DeInit() only when these callbacks are null (not registered beforehand). - If not, MspInit or MspDeInit are not null, the @ref HAL_USART_Init() and @ref HAL_USART_DeInit() - keep and use the user MspInit/MspDeInit callbacks (registered beforehand). - - [..] - Callbacks can be registered/unregistered in HAL_USART_STATE_READY state only. - Exception done MspInit/MspDeInit that can be registered/unregistered - in HAL_USART_STATE_READY or HAL_USART_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_USART_RegisterCallback() before calling @ref HAL_USART_DeInit() - or @ref HAL_USART_Init() function. - - [..] - When The compilation define USE_HAL_USART_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 USART USART - * @brief HAL USART Synchronous module driver - * @{ - */ - -#ifdef HAL_USART_MODULE_ENABLED - -/* Private typedef -----------------------------------------------------------*/ -/* Private define ------------------------------------------------------------*/ -/** @defgroup USART_Private_Constants USART Private Constants - * @{ - */ -#define USART_DUMMY_DATA ((uint16_t) 0xFFFF) /*!< USART transmitted dummy data */ -#define USART_TEACK_REACK_TIMEOUT 1000U /*!< USART TX or RX enable acknowledge time-out value */ -#define USART_CR1_FIELDS ((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | \ - USART_CR1_TE | USART_CR1_RE | USART_CR1_OVER8)) /*!< USART CR1 fields of parameters set by USART_SetConfig API */ -#define USART_CR2_FIELDS ((uint32_t)(USART_CR2_CPHA | USART_CR2_CPOL | \ - USART_CR2_CLKEN | USART_CR2_LBCL | USART_CR2_STOP)) /*!< USART CR2 fields of parameters set by USART_SetConfig API */ - -#define USART_BRR_MIN 0x10U /* USART BRR minimum authorized value */ -#define USART_BRR_MAX 0xFFFFU /* USART BRR maximum authorized value */ -/** - * @} - */ - -/* Private macros ------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* Private function prototypes -----------------------------------------------*/ -/** @addtogroup USART_Private_Functions - * @{ - */ -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) -void USART_InitCallbacksToDefault(USART_HandleTypeDef *husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ -static void USART_EndTransfer(USART_HandleTypeDef *husart); -static void USART_DMATransmitCplt(DMA_HandleTypeDef *hdma); -static void USART_DMAReceiveCplt(DMA_HandleTypeDef *hdma); -static void USART_DMATxHalfCplt(DMA_HandleTypeDef *hdma); -static void USART_DMARxHalfCplt(DMA_HandleTypeDef *hdma); -static void USART_DMAError(DMA_HandleTypeDef *hdma); -static void USART_DMAAbortOnError(DMA_HandleTypeDef *hdma); -static void USART_DMATxAbortCallback(DMA_HandleTypeDef *hdma); -static void USART_DMARxAbortCallback(DMA_HandleTypeDef *hdma); -static HAL_StatusTypeDef USART_WaitOnFlagUntilTimeout(USART_HandleTypeDef *husart, uint32_t Flag, FlagStatus Status, - uint32_t Tickstart, uint32_t Timeout); -static HAL_StatusTypeDef USART_SetConfig(USART_HandleTypeDef *husart); -static HAL_StatusTypeDef USART_CheckIdleState(USART_HandleTypeDef *husart); -static void USART_TxISR_8BIT(USART_HandleTypeDef *husart); -static void USART_TxISR_16BIT(USART_HandleTypeDef *husart); -static void USART_EndTransmit_IT(USART_HandleTypeDef *husart); -static void USART_RxISR_8BIT(USART_HandleTypeDef *husart); -static void USART_RxISR_16BIT(USART_HandleTypeDef *husart); - - -/** - * @} - */ - -/* Exported functions --------------------------------------------------------*/ - -/** @defgroup USART_Exported_Functions USART Exported Functions - * @{ - */ - -/** @defgroup USART_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 USART - in asynchronous and in synchronous modes. - (+) For the asynchronous mode only these parameters 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. - (++) USART polarity - (++) USART phase - (++) USART LastBit - (++) Receiver/transmitter modes - - [..] - The HAL_USART_Init() function follows the USART synchronous configuration - procedure (details for the procedure are available in reference manual). - -@endverbatim - - Depending on the frame length either defined by the M1 and M0 bits (7-bit, - 8-bit or 9-bit) or by the M bit (8-bits or 9-bits), the possible USART formats - are listed in the following table. - - Table 1. USART frame format. - +-----------------------------------------------------------------------+ - | M bit | PCE bit | USART frame | - |-------------------|-----------|---------------------------------------| - | 0 | 0 | | SB | 8-bit data | STB | | - |-------------------|-----------|---------------------------------------| - | 0 | 1 | | SB | 7-bit data | PB | STB | | - |-------------------|-----------|---------------------------------------| - | 1 | 0 | | SB | 9-bit data | STB | | - |-------------------|-----------|---------------------------------------| - | 1 | 1 | | SB | 8-bit data | PB | STB | | - +-----------------------------------------------------------------------+ - +-----------------------------------------------------------------------+ - | M1 bit | M0 bit | PCE bit | USART 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 USART mode according to the specified - * parameters in the USART_InitTypeDef and initialize the associated handle. - * @param husart USART handle. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_USART_Init(USART_HandleTypeDef *husart) -{ - /* Check the USART handle allocation */ - if (husart == NULL) - { - return HAL_ERROR; - } - - /* Check the parameters */ - assert_param(IS_USART_INSTANCE(husart->Instance)); - - if (husart->State == HAL_USART_STATE_RESET) - { - /* Allocate lock resource and initialize it */ - husart->Lock = HAL_UNLOCKED; - -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - USART_InitCallbacksToDefault(husart); - - if (husart->MspInitCallback == NULL) - { - husart->MspInitCallback = HAL_USART_MspInit; - } - - /* Init the low level hardware */ - husart->MspInitCallback(husart); -#else - /* Init the low level hardware : GPIO, CLOCK */ - HAL_USART_MspInit(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - } - - husart->State = HAL_USART_STATE_BUSY; - - /* Disable the Peripheral */ - __HAL_USART_DISABLE(husart); - - /* Set the Usart Communication parameters */ - if (USART_SetConfig(husart) == HAL_ERROR) - { - return HAL_ERROR; - } - - /* In Synchronous mode, the following bits must be kept cleared: - - LINEN bit (if LIN is supported) 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) - husart->Instance->CR2 &= ~USART_CR2_LINEN; -#endif /* USART_CR2_LINEN */ -#if defined (USART_CR3_SCEN) -#if defined (USART_CR3_IREN) - husart->Instance->CR3 &= ~(USART_CR3_SCEN | USART_CR3_HDSEL | USART_CR3_IREN); -#else - husart->Instance->CR3 &= ~(USART_CR3_SCEN | USART_CR3_HDSEL); -#endif /* USART_CR3_IREN */ -#else -#if defined (USART_CR3_IREN) - husart->Instance->CR3 &= ~(USART_CR3_HDSEL | USART_CR3_IREN); -#else - husart->Instance->CR3 &= ~(USART_CR3_HDSEL); -#endif /* USART_CR3_IREN */ -#endif /* USART_CR3_SCEN */ - - /* Enable the Peripheral */ - __HAL_USART_ENABLE(husart); - - /* TEACK and/or REACK to check before moving husart->State to Ready */ - return (USART_CheckIdleState(husart)); -} - -/** - * @brief DeInitialize the USART peripheral. - * @param husart USART handle. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_USART_DeInit(USART_HandleTypeDef *husart) -{ - /* Check the USART handle allocation */ - if (husart == NULL) - { - return HAL_ERROR; - } - - /* Check the parameters */ - assert_param(IS_USART_INSTANCE(husart->Instance)); - - husart->State = HAL_USART_STATE_BUSY; - - husart->Instance->CR1 = 0x0U; - husart->Instance->CR2 = 0x0U; - husart->Instance->CR3 = 0x0U; - -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - if (husart->MspDeInitCallback == NULL) - { - husart->MspDeInitCallback = HAL_USART_MspDeInit; - } - /* DeInit the low level hardware */ - husart->MspDeInitCallback(husart); -#else - /* DeInit the low level hardware */ - HAL_USART_MspDeInit(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - - husart->ErrorCode = HAL_USART_ERROR_NONE; - husart->State = HAL_USART_STATE_RESET; - - /* Process Unlock */ - __HAL_UNLOCK(husart); - - return HAL_OK; -} - -/** - * @brief Initialize the USART MSP. - * @param husart USART handle. - * @retval None - */ -__weak void HAL_USART_MspInit(USART_HandleTypeDef *husart) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(husart); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_USART_MspInit can be implemented in the user file - */ -} - -/** - * @brief DeInitialize the USART MSP. - * @param husart USART handle. - * @retval None - */ -__weak void HAL_USART_MspDeInit(USART_HandleTypeDef *husart) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(husart); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_USART_MspDeInit can be implemented in the user file - */ -} - -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) -/** - * @brief Register a User USART Callback - * To be used instead of the weak predefined callback - * @param husart usart handle - * @param CallbackID ID of the callback to be registered - * This parameter can be one of the following values: - * @arg @ref HAL_USART_TX_HALFCOMPLETE_CB_ID Tx Half Complete Callback ID - * @arg @ref HAL_USART_TX_COMPLETE_CB_ID Tx Complete Callback ID - * @arg @ref HAL_USART_RX_HALFCOMPLETE_CB_ID Rx Half Complete Callback ID - * @arg @ref HAL_USART_RX_COMPLETE_CB_ID Rx Complete Callback ID - * @arg @ref HAL_USART_TX_RX_COMPLETE_CB_ID Rx Complete Callback ID - * @arg @ref HAL_USART_ERROR_CB_ID Error Callback ID - * @arg @ref HAL_USART_ABORT_COMPLETE_CB_ID Abort Complete Callback ID - * @arg @ref HAL_USART_MSPINIT_CB_ID MspInit Callback ID - * @arg @ref HAL_USART_MSPDEINIT_CB_ID MspDeInit Callback ID - * @param pCallback pointer to the Callback function - * @retval HAL status -+ */ -HAL_StatusTypeDef HAL_USART_RegisterCallback(USART_HandleTypeDef *husart, HAL_USART_CallbackIDTypeDef CallbackID, - pUSART_CallbackTypeDef pCallback) -{ - HAL_StatusTypeDef status = HAL_OK; - - if (pCallback == NULL) - { - /* Update the error code */ - husart->ErrorCode |= HAL_USART_ERROR_INVALID_CALLBACK; - - return HAL_ERROR; - } - /* Process locked */ - __HAL_LOCK(husart); - - if (husart->State == HAL_USART_STATE_READY) - { - switch (CallbackID) - { - case HAL_USART_TX_HALFCOMPLETE_CB_ID : - husart->TxHalfCpltCallback = pCallback; - break; - - case HAL_USART_TX_COMPLETE_CB_ID : - husart->TxCpltCallback = pCallback; - break; - - case HAL_USART_RX_HALFCOMPLETE_CB_ID : - husart->RxHalfCpltCallback = pCallback; - break; - - case HAL_USART_RX_COMPLETE_CB_ID : - husart->RxCpltCallback = pCallback; - break; - - case HAL_USART_TX_RX_COMPLETE_CB_ID : - husart->TxRxCpltCallback = pCallback; - break; - - case HAL_USART_ERROR_CB_ID : - husart->ErrorCallback = pCallback; - break; - - case HAL_USART_ABORT_COMPLETE_CB_ID : - husart->AbortCpltCallback = pCallback; - break; - - - case HAL_USART_MSPINIT_CB_ID : - husart->MspInitCallback = pCallback; - break; - - case HAL_USART_MSPDEINIT_CB_ID : - husart->MspDeInitCallback = pCallback; - break; - - default : - /* Update the error code */ - husart->ErrorCode |= HAL_USART_ERROR_INVALID_CALLBACK; - - /* Return error status */ - status = HAL_ERROR; - break; - } - } - else if (husart->State == HAL_USART_STATE_RESET) - { - switch (CallbackID) - { - case HAL_USART_MSPINIT_CB_ID : - husart->MspInitCallback = pCallback; - break; - - case HAL_USART_MSPDEINIT_CB_ID : - husart->MspDeInitCallback = pCallback; - break; - - default : - /* Update the error code */ - husart->ErrorCode |= HAL_USART_ERROR_INVALID_CALLBACK; - - /* Return error status */ - status = HAL_ERROR; - break; - } - } - else - { - /* Update the error code */ - husart->ErrorCode |= HAL_USART_ERROR_INVALID_CALLBACK; - - /* Return error status */ - status = HAL_ERROR; - } - - /* Release Lock */ - __HAL_UNLOCK(husart); - - return status; -} - -/** - * @brief Unregister an UART Callback - * UART callaback is redirected to the weak predefined callback - * @param husart uart handle - * @param CallbackID ID of the callback to be unregistered - * This parameter can be one of the following values: - * @arg @ref HAL_USART_TX_HALFCOMPLETE_CB_ID Tx Half Complete Callback ID - * @arg @ref HAL_USART_TX_COMPLETE_CB_ID Tx Complete Callback ID - * @arg @ref HAL_USART_RX_HALFCOMPLETE_CB_ID Rx Half Complete Callback ID - * @arg @ref HAL_USART_RX_COMPLETE_CB_ID Rx Complete Callback ID - * @arg @ref HAL_USART_TX_RX_COMPLETE_CB_ID Rx Complete Callback ID - * @arg @ref HAL_USART_ERROR_CB_ID Error Callback ID - * @arg @ref HAL_USART_ABORT_COMPLETE_CB_ID Abort Complete Callback ID - * @arg @ref HAL_USART_MSPINIT_CB_ID MspInit Callback ID - * @arg @ref HAL_USART_MSPDEINIT_CB_ID MspDeInit Callback ID - * @retval HAL status - */ -HAL_StatusTypeDef HAL_USART_UnRegisterCallback(USART_HandleTypeDef *husart, HAL_USART_CallbackIDTypeDef CallbackID) -{ - HAL_StatusTypeDef status = HAL_OK; - - /* Process locked */ - __HAL_LOCK(husart); - - if (HAL_USART_STATE_READY == husart->State) - { - switch (CallbackID) - { - case HAL_USART_TX_HALFCOMPLETE_CB_ID : - husart->TxHalfCpltCallback = HAL_USART_TxHalfCpltCallback; /* Legacy weak TxHalfCpltCallback */ - break; - - case HAL_USART_TX_COMPLETE_CB_ID : - husart->TxCpltCallback = HAL_USART_TxCpltCallback; /* Legacy weak TxCpltCallback */ - break; - - case HAL_USART_RX_HALFCOMPLETE_CB_ID : - husart->RxHalfCpltCallback = HAL_USART_RxHalfCpltCallback; /* Legacy weak RxHalfCpltCallback */ - break; - - case HAL_USART_RX_COMPLETE_CB_ID : - husart->RxCpltCallback = HAL_USART_RxCpltCallback; /* Legacy weak RxCpltCallback */ - break; - - case HAL_USART_TX_RX_COMPLETE_CB_ID : - husart->TxRxCpltCallback = HAL_USART_TxRxCpltCallback; /* Legacy weak TxRxCpltCallback */ - break; - - case HAL_USART_ERROR_CB_ID : - husart->ErrorCallback = HAL_USART_ErrorCallback; /* Legacy weak ErrorCallback */ - break; - - case HAL_USART_ABORT_COMPLETE_CB_ID : - husart->AbortCpltCallback = HAL_USART_AbortCpltCallback; /* Legacy weak AbortCpltCallback */ - break; - - - case HAL_USART_MSPINIT_CB_ID : - husart->MspInitCallback = HAL_USART_MspInit; /* Legacy weak MspInitCallback */ - break; - - case HAL_USART_MSPDEINIT_CB_ID : - husart->MspDeInitCallback = HAL_USART_MspDeInit; /* Legacy weak MspDeInitCallback */ - break; - - default : - /* Update the error code */ - husart->ErrorCode |= HAL_USART_ERROR_INVALID_CALLBACK; - - /* Return error status */ - status = HAL_ERROR; - break; - } - } - else if (HAL_USART_STATE_RESET == husart->State) - { - switch (CallbackID) - { - case HAL_USART_MSPINIT_CB_ID : - husart->MspInitCallback = HAL_USART_MspInit; - break; - - case HAL_USART_MSPDEINIT_CB_ID : - husart->MspDeInitCallback = HAL_USART_MspDeInit; - break; - - default : - /* Update the error code */ - husart->ErrorCode |= HAL_USART_ERROR_INVALID_CALLBACK; - - /* Return error status */ - status = HAL_ERROR; - break; - } - } - else - { - /* Update the error code */ - husart->ErrorCode |= HAL_USART_ERROR_INVALID_CALLBACK; - - /* Return error status */ - status = HAL_ERROR; - } - - /* Release Lock */ - __HAL_UNLOCK(husart); - - return status; -} -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - - -/** - * @} - */ - -/** @defgroup USART_Exported_Functions_Group2 IO operation functions - * @brief USART Transmit and Receive functions - * -@verbatim - =============================================================================== - ##### IO operation functions ##### - =============================================================================== - [..] This subsection provides a set of functions allowing to manage the USART synchronous - data transfers. - - [..] The USART supports master mode only: it cannot receive or send data related to an input - clock (SCLK is always an output). - - [..] - - (#) There are two modes of transfer: - (++) Blocking mode: The communication is performed in polling mode. - The HAL status of all data processing is returned by the same function - after finishing transfer. - (++) No-Blocking mode: The communication is performed using Interrupts - or DMA, These API's return the HAL status. - The end of the data processing will be indicated through the - dedicated USART IRQ when using Interrupt mode or the DMA IRQ when - using DMA mode. - The HAL_USART_TxCpltCallback(), HAL_USART_RxCpltCallback() and HAL_USART_TxRxCpltCallback() user callbacks - will be executed respectively at the end of the transmit or Receive process - The HAL_USART_ErrorCallback()user callback will be executed when a communication error is detected - - (#) Blocking mode API's are : - (++) HAL_USART_Transmit() in simplex mode - (++) HAL_USART_Receive() in full duplex receive only - (++) HAL_USART_TransmitReceive() in full duplex mode - - (#) Non-Blocking mode API's with Interrupt are : - (++) HAL_USART_Transmit_IT() in simplex mode - (++) HAL_USART_Receive_IT() in full duplex receive only - (++) HAL_USART_TransmitReceive_IT() in full duplex mode - (++) HAL_USART_IRQHandler() - - (#) No-Blocking mode API's with DMA are : - (++) HAL_USART_Transmit_DMA() in simplex mode - (++) HAL_USART_Receive_DMA() in full duplex receive only - (++) HAL_USART_TransmitReceive_DMA() in full duplex mode - (++) HAL_USART_DMAPause() - (++) HAL_USART_DMAResume() - (++) HAL_USART_DMAStop() - - (#) A set of Transfer Complete Callbacks are provided in Non_Blocking mode: - (++) HAL_USART_TxCpltCallback() - (++) HAL_USART_RxCpltCallback() - (++) HAL_USART_TxHalfCpltCallback() - (++) HAL_USART_RxHalfCpltCallback() - (++) HAL_USART_ErrorCallback() - (++) HAL_USART_TxRxCpltCallback() - - (#) Non-Blocking mode transfers could be aborted using Abort API's : - (++) HAL_USART_Abort() - (++) HAL_USART_Abort_IT() - - (#) For Abort services based on interrupts (HAL_USART_Abort_IT), a Abort Complete Callbacks is provided: - (++) HAL_USART_AbortCpltCallback() - - (#) 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_USART_ErrorCallback() user callback is executed. Transfer is kept ongoing on USART 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_USART_ErrorCallback() user callback is executed. - -@endverbatim - * @{ - */ - -/** - * @brief Simplex 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 pTxData. - * @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 pTxData. - * @param husart USART handle. - * @param pTxData 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_USART_Transmit(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size, uint32_t Timeout) -{ - uint8_t *ptxdata8bits; - uint16_t *ptxdata16bits; - uint32_t tickstart; - - if (husart->State == HAL_USART_STATE_READY) - { - if ((pTxData == NULL) || (Size == 0U)) - { - return HAL_ERROR; - } - - /* In case of 9bits/No Parity transfer, pTxData 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 ((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) - { - if ((((uint32_t)pTxData) & 1U) != 0U) - { - return HAL_ERROR; - } - } - - /* Process Locked */ - __HAL_LOCK(husart); - - husart->ErrorCode = HAL_USART_ERROR_NONE; - husart->State = HAL_USART_STATE_BUSY_TX; - - /* Init tickstart for timeout managment*/ - tickstart = HAL_GetTick(); - - husart->TxXferSize = Size; - husart->TxXferCount = Size; - - /* In case of 9bits/No Parity transfer, pTxData needs to be handled as a uint16_t pointer */ - if ((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) - { - ptxdata8bits = NULL; - ptxdata16bits = (uint16_t *) pTxData; - } - else - { - ptxdata8bits = pTxData; - ptxdata16bits = NULL; - } - - /* Check the remaining data to be sent */ - while (husart->TxXferCount > 0U) - { - if (USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - if (ptxdata8bits == NULL) - { - husart->Instance->TDR = (uint16_t)(*ptxdata16bits & 0x01FFU); - ptxdata16bits++; - } - else - { - husart->Instance->TDR = (uint8_t)(*ptxdata8bits & 0xFFU); - ptxdata8bits++; - } - - husart->TxXferCount--; - } - - if (USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TC, RESET, tickstart, Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - - /* Clear Transmission Complete Flag */ - __HAL_USART_CLEAR_FLAG(husart, USART_CLEAR_TCF); - - /* Clear overrun flag and discard the received data */ - __HAL_USART_CLEAR_OREFLAG(husart); - __HAL_USART_SEND_REQ(husart, USART_RXDATA_FLUSH_REQUEST); -#if defined(USART_RQR_TXFRQ) - __HAL_USART_SEND_REQ(husart, USART_TXDATA_FLUSH_REQUEST); -#endif /* USART_RQR_TXFRQ */ - - /* At end of Tx process, restore husart->State to Ready */ - husart->State = HAL_USART_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(husart); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Receive an amount of data in blocking mode. - * @note To receive synchronous data, dummy data are simultaneously transmitted. - * @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 pRxData. - * @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 pRxData. - * @param husart USART handle. - * @param pRxData 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_USART_Receive(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size, uint32_t Timeout) -{ - uint8_t *prxdata8bits; - uint16_t *prxdata16bits; - uint16_t uhMask; - uint32_t tickstart; - - if (husart->State == HAL_USART_STATE_READY) - { - if ((pRxData == NULL) || (Size == 0U)) - { - return HAL_ERROR; - } - - /* In case of 9bits/No Parity transfer, pRxData 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 ((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) - { - if ((((uint32_t)pRxData) & 1U) != 0U) - { - return HAL_ERROR; - } - } - - /* Process Locked */ - __HAL_LOCK(husart); - - husart->ErrorCode = HAL_USART_ERROR_NONE; - husart->State = HAL_USART_STATE_BUSY_RX; - - /* Init tickstart for timeout managment*/ - tickstart = HAL_GetTick(); - - husart->RxXferSize = Size; - husart->RxXferCount = Size; - - /* Computation of USART mask to apply to RDR register */ - USART_MASK_COMPUTATION(husart); - uhMask = husart->Mask; - - /* In case of 9bits/No Parity transfer, pRxData needs to be handled as a uint16_t pointer */ - if ((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) - { - prxdata8bits = NULL; - prxdata16bits = (uint16_t *) pRxData; - } - else - { - prxdata8bits = pRxData; - prxdata16bits = NULL; - } - - /* as long as data have to be received */ - while (husart->RxXferCount > 0U) - { - { - /* Wait until TXE flag is set to send dummy byte in order to generate the - * clock for the slave to send data. - * Whatever the frame length (7, 8 or 9-bit long), the same dummy value - * can be written for all the cases. */ - if (USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - husart->Instance->TDR = (USART_DUMMY_DATA & (uint16_t)0x0FF); - } - - /* Wait for RXNE Flag */ - if (USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, tickstart, Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - - if (prxdata8bits == NULL) - { - *prxdata16bits = (uint16_t)(husart->Instance->RDR & uhMask); - prxdata16bits++; - } - else - { - *prxdata8bits = (uint8_t)(husart->Instance->RDR & (uint8_t)(uhMask & 0xFFU)); - prxdata8bits++; - } - - husart->RxXferCount--; - - } - - - /* At end of Rx process, restore husart->State to Ready */ - husart->State = HAL_USART_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(husart); - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Full-Duplex Send and 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 sent data and the received data are handled as sets of u16. In this case, Size must indicate the number - * of u16 available through pTxData and through pRxData. - * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), - * address of user data buffers containing data to be sent/received, should be aligned on a half word frontier (16 bits) - * (as sent/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 pTxData and pRxData. - * @param husart USART handle. - * @param pTxData pointer to TX data buffer (u8 or u16 data elements). - * @param pRxData pointer to RX data buffer (u8 or u16 data elements). - * @param Size amount of data elements (u8 or u16) to be sent (same amount to be received). - * @param Timeout Timeout duration. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_USART_TransmitReceive(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, - uint16_t Size, uint32_t Timeout) -{ - uint8_t *prxdata8bits; - uint16_t *prxdata16bits; - uint8_t *ptxdata8bits; - uint16_t *ptxdata16bits; - uint16_t uhMask; - uint16_t rxdatacount; - uint32_t tickstart; - - if (husart->State == HAL_USART_STATE_READY) - { - if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U)) - { - return HAL_ERROR; - } - - /* In case of 9bits/No Parity transfer, pTxData and pRxData buffers provided as input parameter - should be aligned on a u16 frontier, as data to be filled into TDR/retrieved from RDR will be - handled through a u16 cast. */ - if ((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) - { - if (((((uint32_t)pTxData) & 1U) != 0U) || ((((uint32_t)pRxData) & 1U) != 0U)) - { - return HAL_ERROR; - } - } - - /* Process Locked */ - __HAL_LOCK(husart); - - husart->ErrorCode = HAL_USART_ERROR_NONE; - husart->State = HAL_USART_STATE_BUSY_RX; - - /* Init tickstart for timeout managment*/ - tickstart = HAL_GetTick(); - - husart->RxXferSize = Size; - husart->TxXferSize = Size; - husart->TxXferCount = Size; - husart->RxXferCount = Size; - - /* Computation of USART mask to apply to RDR register */ - USART_MASK_COMPUTATION(husart); - uhMask = husart->Mask; - - /* In case of 9bits/No Parity transfer, pRxData needs to be handled as a uint16_t pointer */ - if ((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) - { - prxdata8bits = NULL; - ptxdata8bits = NULL; - ptxdata16bits = (uint16_t *) pTxData; - prxdata16bits = (uint16_t *) pRxData; - } - else - { - prxdata8bits = pRxData; - ptxdata8bits = pTxData; - ptxdata16bits = NULL; - prxdata16bits = NULL; - } - - if (husart->TxXferCount == 0x01U) - { - /* Wait until TXE flag is set to send data */ - if (USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - if (ptxdata8bits == NULL) - { - husart->Instance->TDR = (uint16_t)(*ptxdata16bits & uhMask); - ptxdata16bits++; - } - else - { - husart->Instance->TDR = (uint8_t)(*ptxdata8bits & (uint8_t)(uhMask & 0xFFU)); - ptxdata8bits++; - } - - husart->TxXferCount--; - } - - /* Check the remain data to be sent */ - /* rxdatacount is a temporary variable for MISRAC2012-Rule-13.5 */ - rxdatacount = husart->RxXferCount; - while ((husart->TxXferCount > 0U) || (rxdatacount > 0U)) - { - if (husart->TxXferCount > 0U) - { - /* Wait until TXE flag is set to send data */ - if (USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - if (ptxdata8bits == NULL) - { - husart->Instance->TDR = (uint16_t)(*ptxdata16bits & uhMask); - ptxdata16bits++; - } - else - { - husart->Instance->TDR = (uint8_t)(*ptxdata8bits & (uint8_t)(uhMask & 0xFFU)); - ptxdata8bits++; - } - - husart->TxXferCount--; - } - - if (husart->RxXferCount > 0U) - { - /* Wait for RXNE Flag */ - if (USART_WaitOnFlagUntilTimeout(husart, USART_FLAG_RXNE, RESET, tickstart, Timeout) != HAL_OK) - { - return HAL_TIMEOUT; - } - - if (prxdata8bits == NULL) - { - *prxdata16bits = (uint16_t)(husart->Instance->RDR & uhMask); - prxdata16bits++; - } - else - { - *prxdata8bits = (uint8_t)(husart->Instance->RDR & (uint8_t)(uhMask & 0xFFU)); - prxdata8bits++; - } - - husart->RxXferCount--; - } - rxdatacount = husart->RxXferCount; - } - - /* At end of TxRx process, restore husart->State to Ready */ - husart->State = HAL_USART_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(husart); - - 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 pTxData. - * @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 pTxData. - * @param husart USART handle. - * @param pTxData 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_USART_Transmit_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size) -{ - if (husart->State == HAL_USART_STATE_READY) - { - if ((pTxData == NULL) || (Size == 0U)) - { - return HAL_ERROR; - } - - /* In case of 9bits/No Parity transfer, pTxData 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 ((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) - { - if ((((uint32_t)pTxData) & 1U) != 0U) - { - return HAL_ERROR; - } - } - - /* Process Locked */ - __HAL_LOCK(husart); - - husart->pTxBuffPtr = pTxData; - husart->TxXferSize = Size; - husart->TxXferCount = Size; - husart->TxISR = NULL; - - husart->ErrorCode = HAL_USART_ERROR_NONE; - husart->State = HAL_USART_STATE_BUSY_TX; - - /* The USART Error Interrupts: (Frame error, noise error, overrun error) - are not managed by the USART Transmit Process to avoid the overrun interrupt - when the usart mode is configured for transmit and receive "USART_MODE_TX_RX" - to benefit for the frame error and noise interrupts the usart mode should be - configured only for transmit "USART_MODE_TX" */ - - { - /* Set the Tx ISR function pointer according to the data word length */ - if ((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) - { - husart->TxISR = USART_TxISR_16BIT; - } - else - { - husart->TxISR = USART_TxISR_8BIT; - } - - /* Process Unlocked */ - __HAL_UNLOCK(husart); - - /* Enable the USART Transmit Data Register Empty Interrupt */ - __HAL_USART_ENABLE_IT(husart, USART_IT_TXE); - } - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Receive an amount of data in interrupt mode. - * @note To receive synchronous data, dummy data are simultaneously transmitted. - * @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 pRxData. - * @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 pRxData. - * @param husart USART handle. - * @param pRxData 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_USART_Receive_IT(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size) -{ - - if (husart->State == HAL_USART_STATE_READY) - { - if ((pRxData == NULL) || (Size == 0U)) - { - return HAL_ERROR; - } - - /* In case of 9bits/No Parity transfer, pRxData 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 ((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) - { - if ((((uint32_t)pRxData) & 1U) != 0U) - { - return HAL_ERROR; - } - } - - /* Process Locked */ - __HAL_LOCK(husart); - - husart->pRxBuffPtr = pRxData; - husart->RxXferSize = Size; - husart->RxXferCount = Size; - husart->RxISR = NULL; - - USART_MASK_COMPUTATION(husart); - - husart->ErrorCode = HAL_USART_ERROR_NONE; - husart->State = HAL_USART_STATE_BUSY_RX; - - /* Enable the USART Error Interrupt: (Frame error, noise error, overrun error) */ - SET_BIT(husart->Instance->CR3, USART_CR3_EIE); - - { - /* Set the Rx ISR function pointer according to the data word length */ - if ((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) - { - husart->RxISR = USART_RxISR_16BIT; - } - else - { - husart->RxISR = USART_RxISR_8BIT; - } - - /* Process Unlocked */ - __HAL_UNLOCK(husart); - - /* Enable the USART Parity Error and Data Register not empty Interrupts */ - SET_BIT(husart->Instance->CR1, USART_CR1_PEIE | USART_CR1_RXNEIE); - } - - { - /* Send dummy data in order to generate the clock for the Slave to send the next data. - */ - { - husart->Instance->TDR = (USART_DUMMY_DATA & (uint16_t)0x00FF); - } - } - - return HAL_OK; - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Full-Duplex Send and 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 sent data and the received data are handled as sets of u16. In this case, Size must indicate the number - * of u16 available through pTxData and through pRxData. - * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), - * address of user data buffers containing data to be sent/received, should be aligned on a half word frontier (16 bits) - * (as sent/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 pTxData and pRxData. - * @param husart USART handle. - * @param pTxData pointer to TX data buffer (u8 or u16 data elements). - * @param pRxData pointer to RX data buffer (u8 or u16 data elements). - * @param Size amount of data elements (u8 or u16) to be sent (same amount to be received). - * @retval HAL status - */ -HAL_StatusTypeDef HAL_USART_TransmitReceive_IT(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, - uint16_t Size) -{ - - if (husart->State == HAL_USART_STATE_READY) - { - if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U)) - { - return HAL_ERROR; - } - - /* In case of 9bits/No Parity transfer, pTxData and pRxData buffers provided as input parameter - should be aligned on a u16 frontier, as data to be filled into TDR/retrieved from RDR will be - handled through a u16 cast. */ - if ((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) - { - if (((((uint32_t)pTxData) & 1U) != 0U) || ((((uint32_t)pRxData) & 1U) != 0U)) - { - return HAL_ERROR; - } - } - - /* Process Locked */ - __HAL_LOCK(husart); - - husart->pRxBuffPtr = pRxData; - husart->RxXferSize = Size; - husart->RxXferCount = Size; - husart->pTxBuffPtr = pTxData; - husart->TxXferSize = Size; - husart->TxXferCount = Size; - - /* Computation of USART mask to apply to RDR register */ - USART_MASK_COMPUTATION(husart); - - husart->ErrorCode = HAL_USART_ERROR_NONE; - husart->State = HAL_USART_STATE_BUSY_TX_RX; - - { - if ((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) - { - husart->TxISR = USART_TxISR_16BIT; - husart->RxISR = USART_RxISR_16BIT; - } - else - { - husart->TxISR = USART_TxISR_8BIT; - husart->RxISR = USART_RxISR_8BIT; - } - - /* Process Locked */ - __HAL_UNLOCK(husart); - - /* Enable the USART Error Interrupt: (Frame error, noise error, overrun error) */ - SET_BIT(husart->Instance->CR3, USART_CR3_EIE); - - /* Enable the USART Parity Error and USART Data Register not empty Interrupts */ - SET_BIT(husart->Instance->CR1, USART_CR1_PEIE | USART_CR1_RXNEIE); - - /* Enable the USART Transmit Data Register Empty Interrupt */ - SET_BIT(husart->Instance->CR1, USART_CR1_TXEIE); - } - - 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 pTxData. - * @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 pTxData. - * @param husart USART handle. - * @param pTxData 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_USART_Transmit_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint16_t Size) -{ - HAL_StatusTypeDef status = HAL_OK; - uint32_t *tmp; - - if (husart->State == HAL_USART_STATE_READY) - { - if ((pTxData == NULL) || (Size == 0U)) - { - return HAL_ERROR; - } - - /* In case of 9bits/No Parity transfer, pTxData 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 ((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) - { - if ((((uint32_t)pTxData) & 1U) != 0U) - { - return HAL_ERROR; - } - } - - /* Process Locked */ - __HAL_LOCK(husart); - - husart->pTxBuffPtr = pTxData; - husart->TxXferSize = Size; - husart->TxXferCount = Size; - - husart->ErrorCode = HAL_USART_ERROR_NONE; - husart->State = HAL_USART_STATE_BUSY_TX; - - if (husart->hdmatx != NULL) - { - /* Set the USART DMA transfer complete callback */ - husart->hdmatx->XferCpltCallback = USART_DMATransmitCplt; - - /* Set the USART DMA Half transfer complete callback */ - husart->hdmatx->XferHalfCpltCallback = USART_DMATxHalfCplt; - - /* Set the DMA error callback */ - husart->hdmatx->XferErrorCallback = USART_DMAError; - - /* Enable the USART transmit DMA channel */ - tmp = (uint32_t *)&pTxData; - status = HAL_DMA_Start_IT(husart->hdmatx, *(uint32_t *)tmp, (uint32_t)&husart->Instance->TDR, Size); - } - - if (status == HAL_OK) - { - /* Clear the TC flag in the ICR register */ - __HAL_USART_CLEAR_FLAG(husart, USART_CLEAR_TCF); - - /* Process Unlocked */ - __HAL_UNLOCK(husart); - - /* Enable the DMA transfer for transmit request by setting the DMAT bit - in the USART CR3 register */ - SET_BIT(husart->Instance->CR3, USART_CR3_DMAT); - - return HAL_OK; - } - else - { - /* Set error code to DMA */ - husart->ErrorCode = HAL_USART_ERROR_DMA; - - /* Process Unlocked */ - __HAL_UNLOCK(husart); - - /* Restore husart->State to ready */ - husart->State = HAL_USART_STATE_READY; - - return HAL_ERROR; - } - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Receive an amount of data in DMA mode. - * @note When the USART parity is enabled (PCE = 1), the received data contain - * the parity bit (MSB position). - * @note The USART DMA transmit channel must be configured in order to generate the clock for the slave. - * @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 pRxData. - * @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 pRxData. - * @param husart USART handle. - * @param pRxData 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_USART_Receive_DMA(USART_HandleTypeDef *husart, uint8_t *pRxData, uint16_t Size) -{ - HAL_StatusTypeDef status = HAL_OK; - uint32_t *tmp = (uint32_t *)&pRxData; - - /* Check that a Rx process is not already ongoing */ - if (husart->State == HAL_USART_STATE_READY) - { - if ((pRxData == NULL) || (Size == 0U)) - { - return HAL_ERROR; - } - - /* In case of 9bits/No Parity transfer, pRxData 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 ((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) - { - if ((((uint32_t)pRxData) & 1U) != 0U) - { - return HAL_ERROR; - } - } - - /* Process Locked */ - __HAL_LOCK(husart); - - husart->pRxBuffPtr = pRxData; - husart->RxXferSize = Size; - husart->pTxBuffPtr = pRxData; - husart->TxXferSize = Size; - - husart->ErrorCode = HAL_USART_ERROR_NONE; - husart->State = HAL_USART_STATE_BUSY_RX; - - if (husart->hdmarx != NULL) - { - /* Set the USART DMA Rx transfer complete callback */ - husart->hdmarx->XferCpltCallback = USART_DMAReceiveCplt; - - /* Set the USART DMA Half transfer complete callback */ - husart->hdmarx->XferHalfCpltCallback = USART_DMARxHalfCplt; - - /* Set the USART DMA Rx transfer error callback */ - husart->hdmarx->XferErrorCallback = USART_DMAError; - - /* Enable the USART receive DMA channel */ - status = HAL_DMA_Start_IT(husart->hdmarx, (uint32_t)&husart->Instance->RDR, *(uint32_t *)tmp, Size); - } - - { - /* Enable the USART transmit DMA channel: the transmit channel is used in order - to generate in the non-blocking mode the clock to the slave device, - this mode isn't a simplex receive mode but a full-duplex receive mode */ - - /* Set the USART DMA Tx Complete and Error callback to Null */ - if (husart->hdmatx != NULL) - { - husart->hdmatx->XferErrorCallback = NULL; - husart->hdmatx->XferHalfCpltCallback = NULL; - husart->hdmatx->XferCpltCallback = NULL; - status = HAL_DMA_Start_IT(husart->hdmatx, *(uint32_t *)tmp, (uint32_t)&husart->Instance->TDR, Size); - } - } - - if (status == HAL_OK) - { - /* Process Unlocked */ - __HAL_UNLOCK(husart); - - /* Enable the USART Parity Error Interrupt */ - SET_BIT(husart->Instance->CR1, USART_CR1_PEIE); - - /* Enable the USART Error Interrupt: (Frame error, noise error, overrun error) */ - SET_BIT(husart->Instance->CR3, USART_CR3_EIE); - - /* Enable the DMA transfer for the receiver request by setting the DMAR bit - in the USART CR3 register */ - SET_BIT(husart->Instance->CR3, USART_CR3_DMAR); - - /* Enable the DMA transfer for transmit request by setting the DMAT bit - in the USART CR3 register */ - SET_BIT(husart->Instance->CR3, USART_CR3_DMAT); - - return HAL_OK; - } - else - { - if (husart->hdmarx != NULL) - { - status = HAL_DMA_Abort(husart->hdmarx); - } - - /* No need to check on error code */ - UNUSED(status); - - /* Set error code to DMA */ - husart->ErrorCode = HAL_USART_ERROR_DMA; - - /* Process Unlocked */ - __HAL_UNLOCK(husart); - - /* Restore husart->State to ready */ - husart->State = HAL_USART_STATE_READY; - - return HAL_ERROR; - } - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Full-Duplex Transmit Receive an amount of data in non-blocking mode. - * @note When the USART parity is enabled (PCE = 1) the data received contain the parity bit. - * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), - * the sent data and the received data are handled as sets of u16. In this case, Size must indicate the number - * of u16 available through pTxData and through pRxData. - * @note When UART parity is not enabled (PCE = 0), and Word Length is configured to 9 bits (M1-M0 = 01), - * address of user data buffers containing data to be sent/received, should be aligned on a half word frontier (16 bits) - * (as sent/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 pTxData and pRxData. - * @param husart USART handle. - * @param pTxData pointer to TX data buffer (u8 or u16 data elements). - * @param pRxData pointer to RX data buffer (u8 or u16 data elements). - * @param Size amount of data elements (u8 or u16) to be received/sent. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_USART_TransmitReceive_DMA(USART_HandleTypeDef *husart, uint8_t *pTxData, uint8_t *pRxData, - uint16_t Size) -{ - HAL_StatusTypeDef status; - uint32_t *tmp; - - if (husart->State == HAL_USART_STATE_READY) - { - if ((pTxData == NULL) || (pRxData == NULL) || (Size == 0U)) - { - return HAL_ERROR; - } - - /* In case of 9bits/No Parity transfer, pTxData and pRxData buffers provided as input parameter - should be aligned on a u16 frontier, as data copy to/from TDR/RDR will be - handled by DMA from a u16 frontier. */ - if ((husart->Init.WordLength == USART_WORDLENGTH_9B) && (husart->Init.Parity == USART_PARITY_NONE)) - { - if (((((uint32_t)pTxData) & 1U) != 0U) || ((((uint32_t)pRxData) & 1U) != 0U)) - { - return HAL_ERROR; - } - } - - /* Process Locked */ - __HAL_LOCK(husart); - - husart->pRxBuffPtr = pRxData; - husart->RxXferSize = Size; - husart->pTxBuffPtr = pTxData; - husart->TxXferSize = Size; - - husart->ErrorCode = HAL_USART_ERROR_NONE; - husart->State = HAL_USART_STATE_BUSY_TX_RX; - - if ((husart->hdmarx != NULL) && (husart->hdmatx != NULL)) - { - /* Set the USART DMA Rx transfer complete callback */ - husart->hdmarx->XferCpltCallback = USART_DMAReceiveCplt; - - /* Set the USART DMA Half transfer complete callback */ - husart->hdmarx->XferHalfCpltCallback = USART_DMARxHalfCplt; - - /* Set the USART DMA Tx transfer complete callback */ - husart->hdmatx->XferCpltCallback = USART_DMATransmitCplt; - - /* Set the USART DMA Half transfer complete callback */ - husart->hdmatx->XferHalfCpltCallback = USART_DMATxHalfCplt; - - /* Set the USART DMA Tx transfer error callback */ - husart->hdmatx->XferErrorCallback = USART_DMAError; - - /* Set the USART DMA Rx transfer error callback */ - husart->hdmarx->XferErrorCallback = USART_DMAError; - - /* Enable the USART receive DMA channel */ - tmp = (uint32_t *)&pRxData; - status = HAL_DMA_Start_IT(husart->hdmarx, (uint32_t)&husart->Instance->RDR, *(uint32_t *)tmp, Size); - - /* Enable the USART transmit DMA channel */ - if (status == HAL_OK) - { - tmp = (uint32_t *)&pTxData; - status = HAL_DMA_Start_IT(husart->hdmatx, *(uint32_t *)tmp, (uint32_t)&husart->Instance->TDR, Size); - } - } - else - { - status = HAL_ERROR; - } - - if (status == HAL_OK) - { - /* Process Unlocked */ - __HAL_UNLOCK(husart); - - /* Enable the USART Parity Error Interrupt */ - SET_BIT(husart->Instance->CR1, USART_CR1_PEIE); - - /* Enable the USART Error Interrupt: (Frame error, noise error, overrun error) */ - SET_BIT(husart->Instance->CR3, USART_CR3_EIE); - - /* Clear the TC flag in the ICR register */ - __HAL_USART_CLEAR_FLAG(husart, USART_CLEAR_TCF); - - /* Enable the DMA transfer for the receiver request by setting the DMAR bit - in the USART CR3 register */ - SET_BIT(husart->Instance->CR3, USART_CR3_DMAR); - - /* Enable the DMA transfer for transmit request by setting the DMAT bit - in the USART CR3 register */ - SET_BIT(husart->Instance->CR3, USART_CR3_DMAT); - - return HAL_OK; - } - else - { - if (husart->hdmarx != NULL) - { - status = HAL_DMA_Abort(husart->hdmarx); - } - - /* No need to check on error code */ - UNUSED(status); - - /* Set error code to DMA */ - husart->ErrorCode = HAL_USART_ERROR_DMA; - - /* Process Unlocked */ - __HAL_UNLOCK(husart); - - /* Restore husart->State to ready */ - husart->State = HAL_USART_STATE_READY; - - return HAL_ERROR; - } - } - else - { - return HAL_BUSY; - } -} - -/** - * @brief Pause the DMA Transfer. - * @param husart USART handle. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_USART_DMAPause(USART_HandleTypeDef *husart) -{ - const HAL_USART_StateTypeDef state = husart->State; - - /* Process Locked */ - __HAL_LOCK(husart); - - if ((HAL_IS_BIT_SET(husart->Instance->CR3, USART_CR3_DMAT)) && - (state == HAL_USART_STATE_BUSY_TX)) - { - /* Disable the USART DMA Tx request */ - CLEAR_BIT(husart->Instance->CR3, USART_CR3_DMAT); - } - else if ((state == HAL_USART_STATE_BUSY_RX) || - (state == HAL_USART_STATE_BUSY_TX_RX)) - { - if (HAL_IS_BIT_SET(husart->Instance->CR3, USART_CR3_DMAT)) - { - /* Disable the USART DMA Tx request */ - CLEAR_BIT(husart->Instance->CR3, USART_CR3_DMAT); - } - if (HAL_IS_BIT_SET(husart->Instance->CR3, USART_CR3_DMAR)) - { - /* Disable PE and ERR (Frame error, noise error, overrun error) interrupts */ - CLEAR_BIT(husart->Instance->CR1, USART_CR1_PEIE); - CLEAR_BIT(husart->Instance->CR3, USART_CR3_EIE); - - /* Disable the USART DMA Rx request */ - CLEAR_BIT(husart->Instance->CR3, USART_CR3_DMAR); - } - } - else - { - /* Nothing to do */ - } - - /* Process Unlocked */ - __HAL_UNLOCK(husart); - - return HAL_OK; -} - -/** - * @brief Resume the DMA Transfer. - * @param husart USART handle. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_USART_DMAResume(USART_HandleTypeDef *husart) -{ - const HAL_USART_StateTypeDef state = husart->State; - - /* Process Locked */ - __HAL_LOCK(husart); - - if (state == HAL_USART_STATE_BUSY_TX) - { - /* Enable the USART DMA Tx request */ - SET_BIT(husart->Instance->CR3, USART_CR3_DMAT); - } - else if ((state == HAL_USART_STATE_BUSY_RX) || - (state == HAL_USART_STATE_BUSY_TX_RX)) - { - /* Clear the Overrun flag before resuming the Rx transfer*/ - __HAL_USART_CLEAR_FLAG(husart, USART_CLEAR_OREF); - - /* Reenable PE and ERR (Frame error, noise error, overrun error) interrupts */ - SET_BIT(husart->Instance->CR1, USART_CR1_PEIE); - SET_BIT(husart->Instance->CR3, USART_CR3_EIE); - - /* Enable the USART DMA Rx request before the DMA Tx request */ - SET_BIT(husart->Instance->CR3, USART_CR3_DMAR); - - /* Enable the USART DMA Tx request */ - SET_BIT(husart->Instance->CR3, USART_CR3_DMAT); - } - else - { - /* Nothing to do */ - } - - /* Process Unlocked */ - __HAL_UNLOCK(husart); - - return HAL_OK; -} - -/** - * @brief Stop the DMA Transfer. - * @param husart USART handle. - * @retval HAL status - */ -HAL_StatusTypeDef HAL_USART_DMAStop(USART_HandleTypeDef *husart) -{ - /* The Lock is not implemented on this API to allow the user application - to call the HAL USART API under callbacks HAL_USART_TxCpltCallback() / HAL_USART_RxCpltCallback() / - HAL_USART_TxHalfCpltCallback / HAL_USART_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. */ - - /* Disable the USART Tx/Rx DMA requests */ - CLEAR_BIT(husart->Instance->CR3, USART_CR3_DMAT); - CLEAR_BIT(husart->Instance->CR3, USART_CR3_DMAR); - - /* Abort the USART DMA tx channel */ - if (husart->hdmatx != NULL) - { - if (HAL_DMA_Abort(husart->hdmatx) != HAL_OK) - { - if (HAL_DMA_GetError(husart->hdmatx) == HAL_DMA_ERROR_TIMEOUT) - { - /* Set error code to DMA */ - husart->ErrorCode = HAL_USART_ERROR_DMA; - - return HAL_TIMEOUT; - } - } - } - /* Abort the USART DMA rx channel */ - if (husart->hdmarx != NULL) - { - if (HAL_DMA_Abort(husart->hdmarx) != HAL_OK) - { - if (HAL_DMA_GetError(husart->hdmarx) == HAL_DMA_ERROR_TIMEOUT) - { - /* Set error code to DMA */ - husart->ErrorCode = HAL_USART_ERROR_DMA; - - return HAL_TIMEOUT; - } - } - } - - USART_EndTransfer(husart); - husart->State = HAL_USART_STATE_READY; - - return HAL_OK; -} - -/** - * @brief Abort ongoing transfers (blocking mode). - * @param husart USART handle. - * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. - * This procedure performs following operations : - * - Disable USART 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_USART_Abort(USART_HandleTypeDef *husart) -{ - CLEAR_BIT(husart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE)); - CLEAR_BIT(husart->Instance->CR3, USART_CR3_EIE); - - /* Disable the USART DMA Tx request if enabled */ - if (HAL_IS_BIT_SET(husart->Instance->CR3, USART_CR3_DMAT)) - { - CLEAR_BIT(husart->Instance->CR3, USART_CR3_DMAT); - - /* Abort the USART DMA Tx channel : use blocking DMA Abort API (no callback) */ - if (husart->hdmatx != NULL) - { - /* Set the USART DMA Abort callback to Null. - No call back execution at end of DMA abort procedure */ - husart->hdmatx->XferAbortCallback = NULL; - - if (HAL_DMA_Abort(husart->hdmatx) != HAL_OK) - { - if (HAL_DMA_GetError(husart->hdmatx) == HAL_DMA_ERROR_TIMEOUT) - { - /* Set error code to DMA */ - husart->ErrorCode = HAL_USART_ERROR_DMA; - - return HAL_TIMEOUT; - } - } - } - } - - /* Disable the USART DMA Rx request if enabled */ - if (HAL_IS_BIT_SET(husart->Instance->CR3, USART_CR3_DMAR)) - { - CLEAR_BIT(husart->Instance->CR3, USART_CR3_DMAR); - - /* Abort the USART DMA Rx channel : use blocking DMA Abort API (no callback) */ - if (husart->hdmarx != NULL) - { - /* Set the USART DMA Abort callback to Null. - No call back execution at end of DMA abort procedure */ - husart->hdmarx->XferAbortCallback = NULL; - - if (HAL_DMA_Abort(husart->hdmarx) != HAL_OK) - { - if (HAL_DMA_GetError(husart->hdmarx) == HAL_DMA_ERROR_TIMEOUT) - { - /* Set error code to DMA */ - husart->ErrorCode = HAL_USART_ERROR_DMA; - - return HAL_TIMEOUT; - } - } - } - } - - /* Reset Tx and Rx transfer counters */ - husart->TxXferCount = 0U; - husart->RxXferCount = 0U; - - /* Clear the Error flags in the ICR register */ - __HAL_USART_CLEAR_FLAG(husart, USART_CLEAR_OREF | USART_CLEAR_NEF | USART_CLEAR_PEF | USART_CLEAR_FEF); - - - /* Discard the received data */ - __HAL_USART_SEND_REQ(husart, USART_RXDATA_FLUSH_REQUEST); - - /* Restore husart->State to Ready */ - husart->State = HAL_USART_STATE_READY; - - /* Reset Handle ErrorCode to No Error */ - husart->ErrorCode = HAL_USART_ERROR_NONE; - - return HAL_OK; -} - -/** - * @brief Abort ongoing transfers (Interrupt mode). - * @param husart USART handle. - * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. - * This procedure performs following operations : - * - Disable USART 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_USART_Abort_IT(USART_HandleTypeDef *husart) -{ - uint32_t abortcplt = 1U; - - CLEAR_BIT(husart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE)); - CLEAR_BIT(husart->Instance->CR3, USART_CR3_EIE); - - /* If DMA Tx and/or DMA Rx Handles are associated to USART Handle, DMA Abort complete callbacks should be initialised - before any call to DMA Abort functions */ - /* DMA Tx Handle is valid */ - if (husart->hdmatx != NULL) - { - /* Set DMA Abort Complete callback if USART DMA Tx request if enabled. - Otherwise, set it to NULL */ - if (HAL_IS_BIT_SET(husart->Instance->CR3, USART_CR3_DMAT)) - { - husart->hdmatx->XferAbortCallback = USART_DMATxAbortCallback; - } - else - { - husart->hdmatx->XferAbortCallback = NULL; - } - } - /* DMA Rx Handle is valid */ - if (husart->hdmarx != NULL) - { - /* Set DMA Abort Complete callback if USART DMA Rx request if enabled. - Otherwise, set it to NULL */ - if (HAL_IS_BIT_SET(husart->Instance->CR3, USART_CR3_DMAR)) - { - husart->hdmarx->XferAbortCallback = USART_DMARxAbortCallback; - } - else - { - husart->hdmarx->XferAbortCallback = NULL; - } - } - - /* Disable the USART DMA Tx request if enabled */ - if (HAL_IS_BIT_SET(husart->Instance->CR3, USART_CR3_DMAT)) - { - /* Disable DMA Tx at USART level */ - CLEAR_BIT(husart->Instance->CR3, USART_CR3_DMAT); - - /* Abort the USART DMA Tx channel : use non blocking DMA Abort API (callback) */ - if (husart->hdmatx != NULL) - { - /* USART Tx DMA Abort callback has already been initialised : - will lead to call HAL_USART_AbortCpltCallback() at end of DMA abort procedure */ - - /* Abort DMA TX */ - if (HAL_DMA_Abort_IT(husart->hdmatx) != HAL_OK) - { - husart->hdmatx->XferAbortCallback = NULL; - } - else - { - abortcplt = 0U; - } - } - } - - /* Disable the USART DMA Rx request if enabled */ - if (HAL_IS_BIT_SET(husart->Instance->CR3, USART_CR3_DMAR)) - { - CLEAR_BIT(husart->Instance->CR3, USART_CR3_DMAR); - - /* Abort the USART DMA Rx channel : use non blocking DMA Abort API (callback) */ - if (husart->hdmarx != NULL) - { - /* USART Rx DMA Abort callback has already been initialised : - will lead to call HAL_USART_AbortCpltCallback() at end of DMA abort procedure */ - - /* Abort DMA RX */ - if (HAL_DMA_Abort_IT(husart->hdmarx) != HAL_OK) - { - husart->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 */ - husart->TxXferCount = 0U; - husart->RxXferCount = 0U; - - /* Reset errorCode */ - husart->ErrorCode = HAL_USART_ERROR_NONE; - - /* Clear the Error flags in the ICR register */ - __HAL_USART_CLEAR_FLAG(husart, USART_CLEAR_OREF | USART_CLEAR_NEF | USART_CLEAR_PEF | USART_CLEAR_FEF); - - - /* Discard the received data */ - __HAL_USART_SEND_REQ(husart, USART_RXDATA_FLUSH_REQUEST); - - /* Restore husart->State to Ready */ - husart->State = HAL_USART_STATE_READY; - - /* As no DMA to be aborted, call directly user Abort complete callback */ -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Abort Complete Callback */ - husart->AbortCpltCallback(husart); -#else - /* Call legacy weak Abort Complete Callback */ - HAL_USART_AbortCpltCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - } - - return HAL_OK; -} - -/** - * @brief Handle USART interrupt request. - * @param husart USART handle. - * @retval None - */ -void HAL_USART_IRQHandler(USART_HandleTypeDef *husart) -{ - uint32_t isrflags = READ_REG(husart->Instance->ISR); - uint32_t cr1its = READ_REG(husart->Instance->CR1); - uint32_t cr3its = READ_REG(husart->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)); - if (errorflags == 0U) - { - /* USART in mode Receiver ---------------------------------------------------*/ - if (((isrflags & USART_ISR_RXNE) != 0U) - && ((cr1its & USART_CR1_RXNEIE) != 0U)) - { - if (husart->RxISR != NULL) - { - husart->RxISR(husart); - } - return; - } - } - - /* If some errors occur */ - if ((errorflags != 0U) - && (((cr3its & USART_CR3_EIE) != 0U) - || ((cr1its & (USART_CR1_RXNEIE | USART_CR1_PEIE)) != 0U))) - { - /* USART parity error interrupt occurred -------------------------------------*/ - if (((isrflags & USART_ISR_PE) != 0U) && ((cr1its & USART_CR1_PEIE) != 0U)) - { - __HAL_USART_CLEAR_IT(husart, USART_CLEAR_PEF); - - husart->ErrorCode |= HAL_USART_ERROR_PE; - } - - /* USART frame error interrupt occurred --------------------------------------*/ - if (((isrflags & USART_ISR_FE) != 0U) && ((cr3its & USART_CR3_EIE) != 0U)) - { - __HAL_USART_CLEAR_IT(husart, USART_CLEAR_FEF); - - husart->ErrorCode |= HAL_USART_ERROR_FE; - } - - /* USART noise error interrupt occurred --------------------------------------*/ - if (((isrflags & USART_ISR_NE) != 0U) && ((cr3its & USART_CR3_EIE) != 0U)) - { - __HAL_USART_CLEAR_IT(husart, USART_CLEAR_NEF); - - husart->ErrorCode |= HAL_USART_ERROR_NE; - } - - /* USART Over-Run interrupt occurred -----------------------------------------*/ - if (((isrflags & USART_ISR_ORE) != 0U) - && (((cr1its & USART_CR1_RXNEIE) != 0U) || - ((cr3its & USART_CR3_EIE) != 0U))) - { - __HAL_USART_CLEAR_IT(husart, USART_CLEAR_OREF); - - husart->ErrorCode |= HAL_USART_ERROR_ORE; - } - - - /* Call USART Error Call back function if need be --------------------------*/ - if (husart->ErrorCode != HAL_USART_ERROR_NONE) - { - /* USART in mode Receiver ---------------------------------------------------*/ - if (((isrflags & USART_ISR_RXNE) != 0U) - && ((cr1its & USART_CR1_RXNEIE) != 0U)) - { - if (husart->RxISR != NULL) - { - husart->RxISR(husart); - } - } - - /* If Overrun error occurs, or if any error occurs in DMA mode reception, - consider error as blocking */ - errorcode = husart->ErrorCode & HAL_USART_ERROR_ORE; - if ((HAL_IS_BIT_SET(husart->Instance->CR3, USART_CR3_DMAR)) || - (errorcode != 0U)) - { - /* Blocking error : transfer is aborted - Set the USART state ready to be able to start again the process, - Disable Interrupts, and disable DMA requests, if ongoing */ - USART_EndTransfer(husart); - - /* Disable the USART DMA Rx request if enabled */ - if (HAL_IS_BIT_SET(husart->Instance->CR3, USART_CR3_DMAR)) - { - CLEAR_BIT(husart->Instance->CR3, USART_CR3_DMAR | USART_CR3_DMAR); - - /* Abort the USART DMA Tx channel */ - if (husart->hdmatx != NULL) - { - /* Set the USART Tx DMA Abort callback to NULL : no callback - executed at end of DMA abort procedure */ - husart->hdmatx->XferAbortCallback = NULL; - - /* Abort DMA TX */ - (void)HAL_DMA_Abort_IT(husart->hdmatx); - } - - /* Abort the USART DMA Rx channel */ - if (husart->hdmarx != NULL) - { - /* Set the USART Rx DMA Abort callback : - will lead to call HAL_USART_ErrorCallback() at end of DMA abort procedure */ - husart->hdmarx->XferAbortCallback = USART_DMAAbortOnError; - - /* Abort DMA RX */ - if (HAL_DMA_Abort_IT(husart->hdmarx) != HAL_OK) - { - /* Call Directly husart->hdmarx->XferAbortCallback function in case of error */ - husart->hdmarx->XferAbortCallback(husart->hdmarx); - } - } - else - { - /* Call user error callback */ -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Error Callback */ - husart->ErrorCallback(husart); -#else - /* Call legacy weak Error Callback */ - HAL_USART_ErrorCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - } - } - else - { - /* Call user error callback */ -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Error Callback */ - husart->ErrorCallback(husart); -#else - /* Call legacy weak Error Callback */ - HAL_USART_ErrorCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - } - } - else - { - /* Non Blocking error : transfer could go on. - Error is notified to user through user error callback */ -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Error Callback */ - husart->ErrorCallback(husart); -#else - /* Call legacy weak Error Callback */ - HAL_USART_ErrorCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - husart->ErrorCode = HAL_USART_ERROR_NONE; - } - } - return; - - } /* End if some error occurs */ - - - /* USART in mode Transmitter ------------------------------------------------*/ - if (((isrflags & USART_ISR_TXE) != 0U) - && ((cr1its & USART_CR1_TXEIE) != 0U)) - { - if (husart->TxISR != NULL) - { - husart->TxISR(husart); - } - return; - } - - /* USART in mode Transmitter (transmission end) -----------------------------*/ - if (((isrflags & USART_ISR_TC) != 0U) && ((cr1its & USART_CR1_TCIE) != 0U)) - { - USART_EndTransmit_IT(husart); - return; - } - -} - -/** - * @brief Tx Transfer completed callback. - * @param husart USART handle. - * @retval None - */ -__weak void HAL_USART_TxCpltCallback(USART_HandleTypeDef *husart) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(husart); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_USART_TxCpltCallback can be implemented in the user file. - */ -} - -/** - * @brief Tx Half Transfer completed callback. - * @param husart USART handle. - * @retval None - */ -__weak void HAL_USART_TxHalfCpltCallback(USART_HandleTypeDef *husart) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(husart); - - /* NOTE: This function should not be modified, when the callback is needed, - the HAL_USART_TxHalfCpltCallback can be implemented in the user file. - */ -} - -/** - * @brief Rx Transfer completed callback. - * @param husart USART handle. - * @retval None - */ -__weak void HAL_USART_RxCpltCallback(USART_HandleTypeDef *husart) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(husart); - - /* NOTE: This function should not be modified, when the callback is needed, - the HAL_USART_RxCpltCallback can be implemented in the user file. - */ -} - -/** - * @brief Rx Half Transfer completed callback. - * @param husart USART handle. - * @retval None - */ -__weak void HAL_USART_RxHalfCpltCallback(USART_HandleTypeDef *husart) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(husart); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_USART_RxHalfCpltCallback can be implemented in the user file - */ -} - -/** - * @brief Tx/Rx Transfers completed callback for the non-blocking process. - * @param husart USART handle. - * @retval None - */ -__weak void HAL_USART_TxRxCpltCallback(USART_HandleTypeDef *husart) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(husart); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_USART_TxRxCpltCallback can be implemented in the user file - */ -} - -/** - * @brief USART error callback. - * @param husart USART handle. - * @retval None - */ -__weak void HAL_USART_ErrorCallback(USART_HandleTypeDef *husart) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(husart); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_USART_ErrorCallback can be implemented in the user file. - */ -} - -/** - * @brief USART Abort Complete callback. - * @param husart USART handle. - * @retval None - */ -__weak void HAL_USART_AbortCpltCallback(USART_HandleTypeDef *husart) -{ - /* Prevent unused argument(s) compilation warning */ - UNUSED(husart); - - /* NOTE : This function should not be modified, when the callback is needed, - the HAL_USART_AbortCpltCallback can be implemented in the user file. - */ -} - -/** - * @} - */ - -/** @defgroup USART_Exported_Functions_Group4 Peripheral State and Error functions - * @brief USART Peripheral State and Error functions - * -@verbatim - ============================================================================== - ##### Peripheral State and Error functions ##### - ============================================================================== - [..] - This subsection provides functions allowing to : - (+) Return the USART handle state - (+) Return the USART handle error code - -@endverbatim - * @{ - */ - - -/** - * @brief Return the USART handle state. - * @param husart pointer to a USART_HandleTypeDef structure that contains - * the configuration information for the specified USART. - * @retval USART handle state - */ -HAL_USART_StateTypeDef HAL_USART_GetState(USART_HandleTypeDef *husart) -{ - return husart->State; -} - -/** - * @brief Return the USART error code. - * @param husart pointer to a USART_HandleTypeDef structure that contains - * the configuration information for the specified USART. - * @retval USART handle Error Code - */ -uint32_t HAL_USART_GetError(USART_HandleTypeDef *husart) -{ - return husart->ErrorCode; -} - -/** - * @} - */ - -/** - * @} - */ - -/** @defgroup USART_Private_Functions USART Private Functions - * @{ - */ - -/** - * @brief Initialize the callbacks to their default values. - * @param husart USART handle. - * @retval none - */ -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) -void USART_InitCallbacksToDefault(USART_HandleTypeDef *husart) -{ - /* Init the USART Callback settings */ - husart->TxHalfCpltCallback = HAL_USART_TxHalfCpltCallback; /* Legacy weak TxHalfCpltCallback */ - husart->TxCpltCallback = HAL_USART_TxCpltCallback; /* Legacy weak TxCpltCallback */ - husart->RxHalfCpltCallback = HAL_USART_RxHalfCpltCallback; /* Legacy weak RxHalfCpltCallback */ - husart->RxCpltCallback = HAL_USART_RxCpltCallback; /* Legacy weak RxCpltCallback */ - husart->TxRxCpltCallback = HAL_USART_TxRxCpltCallback; /* Legacy weak TxRxCpltCallback */ - husart->ErrorCallback = HAL_USART_ErrorCallback; /* Legacy weak ErrorCallback */ - husart->AbortCpltCallback = HAL_USART_AbortCpltCallback; /* Legacy weak AbortCpltCallback */ -} -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - -/** - * @brief End ongoing transfer on USART peripheral (following error detection or Transfer completion). - * @param husart USART handle. - * @retval None - */ -static void USART_EndTransfer(USART_HandleTypeDef *husart) -{ - /* Disable TXEIE, TCIE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ - CLEAR_BIT(husart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE)); - CLEAR_BIT(husart->Instance->CR3, USART_CR3_EIE); - - /* At end of process, restore husart->State to Ready */ - husart->State = HAL_USART_STATE_READY; -} - -/** - * @brief DMA USART transmit process complete callback. - * @param hdma DMA handle. - * @retval None - */ -static void USART_DMATransmitCplt(DMA_HandleTypeDef *hdma) -{ - USART_HandleTypeDef *husart = (USART_HandleTypeDef *)(hdma->Parent); - - /* DMA Normal mode */ - if (HAL_IS_BIT_CLR(hdma->Instance->CCR, DMA_CCR_CIRC)) - { - husart->TxXferCount = 0U; - - if (husart->State == HAL_USART_STATE_BUSY_TX) - { - /* Disable the DMA transfer for transmit request by resetting the DMAT bit - in the USART CR3 register */ - CLEAR_BIT(husart->Instance->CR3, USART_CR3_DMAT); - - /* Enable the USART Transmit Complete Interrupt */ - __HAL_USART_ENABLE_IT(husart, USART_IT_TC); - } - } - /* DMA Circular mode */ - else - { - if (husart->State == HAL_USART_STATE_BUSY_TX) - { -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Tx Complete Callback */ - husart->TxCpltCallback(husart); -#else - /* Call legacy weak Tx Complete Callback */ - HAL_USART_TxCpltCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - } - } -} - -/** - * @brief DMA USART transmit process half complete callback. - * @param hdma DMA handle. - * @retval None - */ -static void USART_DMATxHalfCplt(DMA_HandleTypeDef *hdma) -{ - USART_HandleTypeDef *husart = (USART_HandleTypeDef *)(hdma->Parent); - -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Tx Half Complete Callback */ - husart->TxHalfCpltCallback(husart); -#else - /* Call legacy weak Tx Half Complete Callback */ - HAL_USART_TxHalfCpltCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ -} - -/** - * @brief DMA USART receive process complete callback. - * @param hdma DMA handle. - * @retval None - */ -static void USART_DMAReceiveCplt(DMA_HandleTypeDef *hdma) -{ - USART_HandleTypeDef *husart = (USART_HandleTypeDef *)(hdma->Parent); - - /* DMA Normal mode */ - if (HAL_IS_BIT_CLR(hdma->Instance->CCR, DMA_CCR_CIRC)) - { - husart->RxXferCount = 0U; - - /* Disable PE and ERR (Frame error, noise error, overrun error) interrupts */ - CLEAR_BIT(husart->Instance->CR1, USART_CR1_PEIE); - CLEAR_BIT(husart->Instance->CR3, USART_CR3_EIE); - - /* Disable the DMA RX transfer for the receiver request by resetting the DMAR bit - in USART CR3 register */ - CLEAR_BIT(husart->Instance->CR3, USART_CR3_DMAR); - /* similarly, disable the DMA TX transfer that was started to provide the - clock to the slave device */ - CLEAR_BIT(husart->Instance->CR3, USART_CR3_DMAT); - - if (husart->State == HAL_USART_STATE_BUSY_RX) - { -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Rx Complete Callback */ - husart->RxCpltCallback(husart); -#else - /* Call legacy weak Rx Complete Callback */ - HAL_USART_RxCpltCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - } - /* The USART state is HAL_USART_STATE_BUSY_TX_RX */ - else - { -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Tx Rx Complete Callback */ - husart->TxRxCpltCallback(husart); -#else - /* Call legacy weak Tx Rx Complete Callback */ - HAL_USART_TxRxCpltCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - } - husart->State = HAL_USART_STATE_READY; - } - /* DMA circular mode */ - else - { - if (husart->State == HAL_USART_STATE_BUSY_RX) - { -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Rx Complete Callback */ - husart->RxCpltCallback(husart); -#else - /* Call legacy weak Rx Complete Callback */ - HAL_USART_RxCpltCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - } - /* The USART state is HAL_USART_STATE_BUSY_TX_RX */ - else - { -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Tx Rx Complete Callback */ - husart->TxRxCpltCallback(husart); -#else - /* Call legacy weak Tx Rx Complete Callback */ - HAL_USART_TxRxCpltCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - } - } -} - -/** - * @brief DMA USART receive process half complete callback. - * @param hdma DMA handle. - * @retval None - */ -static void USART_DMARxHalfCplt(DMA_HandleTypeDef *hdma) -{ - USART_HandleTypeDef *husart = (USART_HandleTypeDef *)(hdma->Parent); - -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Rx Half Complete Callback */ - husart->RxHalfCpltCallback(husart); -#else - /* Call legacy weak Rx Half Complete Callback */ - HAL_USART_RxHalfCpltCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ -} - -/** - * @brief DMA USART communication error callback. - * @param hdma DMA handle. - * @retval None - */ -static void USART_DMAError(DMA_HandleTypeDef *hdma) -{ - USART_HandleTypeDef *husart = (USART_HandleTypeDef *)(hdma->Parent); - - husart->RxXferCount = 0U; - husart->TxXferCount = 0U; - USART_EndTransfer(husart); - - husart->ErrorCode |= HAL_USART_ERROR_DMA; - husart->State = HAL_USART_STATE_READY; - -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Error Callback */ - husart->ErrorCallback(husart); -#else - /* Call legacy weak Error Callback */ - HAL_USART_ErrorCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ -} - -/** - * @brief DMA USART 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 USART_DMAAbortOnError(DMA_HandleTypeDef *hdma) -{ - USART_HandleTypeDef *husart = (USART_HandleTypeDef *)(hdma->Parent); - husart->RxXferCount = 0U; - husart->TxXferCount = 0U; - -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Error Callback */ - husart->ErrorCallback(husart); -#else - /* Call legacy weak Error Callback */ - HAL_USART_ErrorCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ -} - -/** - * @brief DMA USART 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 USART_DMATxAbortCallback(DMA_HandleTypeDef *hdma) -{ - USART_HandleTypeDef *husart = (USART_HandleTypeDef *)(hdma->Parent); - - husart->hdmatx->XferAbortCallback = NULL; - - /* Check if an Abort process is still ongoing */ - if (husart->hdmarx != NULL) - { - if (husart->hdmarx->XferAbortCallback != NULL) - { - return; - } - } - - /* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */ - husart->TxXferCount = 0U; - husart->RxXferCount = 0U; - - /* Reset errorCode */ - husart->ErrorCode = HAL_USART_ERROR_NONE; - - /* Clear the Error flags in the ICR register */ - __HAL_USART_CLEAR_FLAG(husart, USART_CLEAR_OREF | USART_CLEAR_NEF | USART_CLEAR_PEF | USART_CLEAR_FEF); - - /* Restore husart->State to Ready */ - husart->State = HAL_USART_STATE_READY; - - /* Call user Abort complete callback */ -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Abort Complete Callback */ - husart->AbortCpltCallback(husart); -#else - /* Call legacy weak Abort Complete Callback */ - HAL_USART_AbortCpltCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - -} - - -/** - * @brief DMA USART 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 USART_DMARxAbortCallback(DMA_HandleTypeDef *hdma) -{ - USART_HandleTypeDef *husart = (USART_HandleTypeDef *)(hdma->Parent); - - husart->hdmarx->XferAbortCallback = NULL; - - /* Check if an Abort process is still ongoing */ - if (husart->hdmatx != NULL) - { - if (husart->hdmatx->XferAbortCallback != NULL) - { - return; - } - } - - /* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */ - husart->TxXferCount = 0U; - husart->RxXferCount = 0U; - - /* Reset errorCode */ - husart->ErrorCode = HAL_USART_ERROR_NONE; - - /* Clear the Error flags in the ICR register */ - __HAL_USART_CLEAR_FLAG(husart, USART_CLEAR_OREF | USART_CLEAR_NEF | USART_CLEAR_PEF | USART_CLEAR_FEF); - - /* Restore husart->State to Ready */ - husart->State = HAL_USART_STATE_READY; - - /* Call user Abort complete callback */ -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Abort Complete Callback */ - husart->AbortCpltCallback(husart); -#else - /* Call legacy weak Abort Complete Callback */ - HAL_USART_AbortCpltCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ -} - - -/** - * @brief Handle USART Communication Timeout. - * @param husart USART handle. - * @param Flag Specifies the USART flag to check. - * @param Status the Flag status (SET or RESET). - * @param Tickstart Tick start value - * @param Timeout timeout duration. - * @retval HAL status - */ -static HAL_StatusTypeDef USART_WaitOnFlagUntilTimeout(USART_HandleTypeDef *husart, uint32_t Flag, FlagStatus Status, - uint32_t Tickstart, uint32_t Timeout) -{ - /* Wait until flag is set */ - while ((__HAL_USART_GET_FLAG(husart, Flag) ? SET : RESET) == Status) - { - /* Check for the Timeout */ - if (Timeout != HAL_MAX_DELAY) - { - if (((HAL_GetTick() - Tickstart) > Timeout) || (Timeout == 0U)) - { - husart->State = HAL_USART_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(husart); - - return HAL_TIMEOUT; - } - } - } - return HAL_OK; -} - -/** - * @brief Configure the USART peripheral. - * @param husart USART handle. - * @retval HAL status - */ -static HAL_StatusTypeDef USART_SetConfig(USART_HandleTypeDef *husart) -{ - uint32_t tmpreg; - USART_ClockSourceTypeDef clocksource; - HAL_StatusTypeDef ret = HAL_OK; - uint16_t brrtemp; - uint32_t usartdiv = 0x00000000; - uint32_t pclk; - - /* Check the parameters */ - assert_param(IS_USART_POLARITY(husart->Init.CLKPolarity)); - assert_param(IS_USART_PHASE(husart->Init.CLKPhase)); - assert_param(IS_USART_LASTBIT(husart->Init.CLKLastBit)); - assert_param(IS_USART_BAUDRATE(husart->Init.BaudRate)); - assert_param(IS_USART_WORD_LENGTH(husart->Init.WordLength)); - assert_param(IS_USART_STOPBITS(husart->Init.StopBits)); - assert_param(IS_USART_PARITY(husart->Init.Parity)); - assert_param(IS_USART_MODE(husart->Init.Mode)); - - /*-------------------------- USART CR1 Configuration -----------------------*/ - /* Clear M, PCE, PS, TE and RE bits and configure - * the USART Word Length, Parity and Mode: - * set the M bits according to husart->Init.WordLength value - * set PCE and PS bits according to husart->Init.Parity value - * set TE and RE bits according to husart->Init.Mode value - * force OVER8 to 1 to allow to reach the maximum speed (Fclock/8) */ - tmpreg = (uint32_t)husart->Init.WordLength | husart->Init.Parity | husart->Init.Mode | USART_CR1_OVER8; - MODIFY_REG(husart->Instance->CR1, USART_CR1_FIELDS, tmpreg); - - /*---------------------------- USART CR2 Configuration ---------------------*/ - /* Clear and configure the USART Clock, CPOL, CPHA, LBCL and STOP bits: - * set CPOL bit according to husart->Init.CLKPolarity value - * set CPHA bit according to husart->Init.CLKPhase value - * set LBCL bit according to husart->Init.CLKLastBit value (used in SPI master mode only) - * set STOP[13:12] bits according to husart->Init.StopBits value */ - tmpreg = (uint32_t)(USART_CLOCK_ENABLE); - tmpreg |= (uint32_t)husart->Init.CLKLastBit; - tmpreg |= ((uint32_t)husart->Init.CLKPolarity | (uint32_t)husart->Init.CLKPhase); - tmpreg |= (uint32_t)husart->Init.StopBits; - MODIFY_REG(husart->Instance->CR2, USART_CR2_FIELDS, tmpreg); - - - /*-------------------------- USART BRR Configuration -----------------------*/ - /* BRR is filled-up according to OVER8 bit setting which is forced to 1 */ - USART_GETCLOCKSOURCE(husart, clocksource); - - switch (clocksource) - { - case USART_CLOCKSOURCE_PCLK1: - pclk = HAL_RCC_GetPCLK1Freq(); - usartdiv = (uint32_t)(USART_DIV_SAMPLING8(pclk, husart->Init.BaudRate)); - break; - case USART_CLOCKSOURCE_HSI: - usartdiv = (uint32_t)(USART_DIV_SAMPLING8(HSI_VALUE, husart->Init.BaudRate)); - break; - case USART_CLOCKSOURCE_SYSCLK: - pclk = HAL_RCC_GetSysClockFreq(); - usartdiv = (uint32_t)(USART_DIV_SAMPLING8(pclk, husart->Init.BaudRate)); - break; - case USART_CLOCKSOURCE_LSE: - usartdiv = (uint32_t)(USART_DIV_SAMPLING8(LSE_VALUE, husart->Init.BaudRate)); - break; - default: - ret = HAL_ERROR; - break; - } - - /* USARTDIV must be greater than or equal to 0d16 and smaller than or equal to ffff */ - if ((usartdiv >= USART_BRR_MIN) && (usartdiv <= USART_BRR_MAX)) - { - brrtemp = (uint16_t)(usartdiv & 0xFFF0U); - brrtemp |= (uint16_t)((usartdiv & (uint16_t)0x000FU) >> 1U); - husart->Instance->BRR = brrtemp; - } - else - { - ret = HAL_ERROR; - } - - - /* Clear ISR function pointers */ - husart->RxISR = NULL; - husart->TxISR = NULL; - - return ret; -} - -/** - * @brief Check the USART Idle State. - * @param husart USART handle. - * @retval HAL status - */ -static HAL_StatusTypeDef USART_CheckIdleState(USART_HandleTypeDef *husart) -{ - uint32_t tickstart; - - /* Initialize the USART ErrorCode */ - husart->ErrorCode = HAL_USART_ERROR_NONE; - - /* Init tickstart for timeout managment*/ - tickstart = HAL_GetTick(); - - /* Check if the Transmitter is enabled */ - if ((husart->Instance->CR1 & USART_CR1_TE) == USART_CR1_TE) - { - /* Wait until TEACK flag is set */ - if (USART_WaitOnFlagUntilTimeout(husart, USART_ISR_TEACK, RESET, tickstart, USART_TEACK_REACK_TIMEOUT) != HAL_OK) - { - /* Timeout occurred */ - return HAL_TIMEOUT; - } - } - /* Check if the Receiver is enabled */ - if ((husart->Instance->CR1 & USART_CR1_RE) == USART_CR1_RE) - { - /* Wait until REACK flag is set */ - if (USART_WaitOnFlagUntilTimeout(husart, USART_ISR_REACK, RESET, tickstart, USART_TEACK_REACK_TIMEOUT) != HAL_OK) - { - /* Timeout occurred */ - return HAL_TIMEOUT; - } - } - - /* Initialize the USART state*/ - husart->State = HAL_USART_STATE_READY; - - /* Process Unlocked */ - __HAL_UNLOCK(husart); - - return HAL_OK; -} - -/** - * @brief Simplex send an amount of data in non-blocking mode. - * @note Function called under interruption only, once - * interruptions have been enabled by HAL_USART_Transmit_IT(). - * @note The USART errors are not managed to avoid the overrun error. - * @note ISR function executed when data word length is less than 9 bits long. - * @param husart USART handle. - * @retval None - */ -static void USART_TxISR_8BIT(USART_HandleTypeDef *husart) -{ - const HAL_USART_StateTypeDef state = husart->State; - - /* Check that a Tx process is ongoing */ - if ((state == HAL_USART_STATE_BUSY_TX) || - (state == HAL_USART_STATE_BUSY_TX_RX)) - { - if (husart->TxXferCount == 0U) - { - /* Disable the USART Transmit data register empty interrupt */ - __HAL_USART_DISABLE_IT(husart, USART_IT_TXE); - - /* Enable the USART Transmit Complete Interrupt */ - __HAL_USART_ENABLE_IT(husart, USART_IT_TC); - } - else - { - husart->Instance->TDR = (uint8_t)(*husart->pTxBuffPtr & (uint8_t)0xFF); - husart->pTxBuffPtr++; - husart->TxXferCount--; - } - } -} - -/** - * @brief Simplex send an amount of data in non-blocking mode. - * @note Function called under interruption only, once - * interruptions have been enabled by HAL_USART_Transmit_IT(). - * @note The USART errors are not managed to avoid the overrun error. - * @note ISR function executed when data word length is 9 bits long. - * @param husart USART handle. - * @retval None - */ -static void USART_TxISR_16BIT(USART_HandleTypeDef *husart) -{ - const HAL_USART_StateTypeDef state = husart->State; - uint16_t *tmp; - - if ((state == HAL_USART_STATE_BUSY_TX) || - (state == HAL_USART_STATE_BUSY_TX_RX)) - { - if (husart->TxXferCount == 0U) - { - /* Disable the USART Transmit data register empty interrupt */ - __HAL_USART_DISABLE_IT(husart, USART_IT_TXE); - - /* Enable the USART Transmit Complete Interrupt */ - __HAL_USART_ENABLE_IT(husart, USART_IT_TC); - } - else - { - tmp = (uint16_t *) husart->pTxBuffPtr; - husart->Instance->TDR = (uint16_t)(*tmp & 0x01FFU); - husart->pTxBuffPtr += 2U; - husart->TxXferCount--; - } - } -} - - -/** - * @brief Wraps up transmission in non-blocking mode. - * @param husart Pointer to a USART_HandleTypeDef structure that contains - * the configuration information for the specified USART module. - * @retval None - */ -static void USART_EndTransmit_IT(USART_HandleTypeDef *husart) -{ - /* Disable the USART Transmit Complete Interrupt */ - __HAL_USART_DISABLE_IT(husart, USART_IT_TC); - - /* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */ - __HAL_USART_DISABLE_IT(husart, USART_IT_ERR); - - /* Clear TxISR function pointer */ - husart->TxISR = NULL; - - if (husart->State == HAL_USART_STATE_BUSY_TX) - { - /* Clear overrun flag and discard the received data */ - __HAL_USART_CLEAR_OREFLAG(husart); - __HAL_USART_SEND_REQ(husart, USART_RXDATA_FLUSH_REQUEST); - - /* Tx process is completed, restore husart->State to Ready */ - husart->State = HAL_USART_STATE_READY; - -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Tx Complete Callback */ - husart->TxCpltCallback(husart); -#else - /* Call legacy weak Tx Complete Callback */ - HAL_USART_TxCpltCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - } - else if (husart->RxXferCount == 0U) - { - /* TxRx process is completed, restore husart->State to Ready */ - husart->State = HAL_USART_STATE_READY; - -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Tx Rx Complete Callback */ - husart->TxRxCpltCallback(husart); -#else - /* Call legacy weak Tx Rx Complete Callback */ - HAL_USART_TxRxCpltCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - } - else - { - /* Nothing to do */ - } -} - - -/** - * @brief Simplex receive an amount of data in non-blocking mode. - * @note Function called under interruption only, once - * interruptions have been enabled by HAL_USART_Receive_IT(). - * @note ISR function executed when data word length is less than 9 bits long. - * @param husart USART handle - * @retval None - */ -static void USART_RxISR_8BIT(USART_HandleTypeDef *husart) -{ - const HAL_USART_StateTypeDef state = husart->State; - uint16_t txdatacount; - uint16_t uhMask = husart->Mask; - - if ((state == HAL_USART_STATE_BUSY_RX) || - (state == HAL_USART_STATE_BUSY_TX_RX)) - { - *husart->pRxBuffPtr = (uint8_t)(husart->Instance->RDR & (uint8_t)uhMask); - husart->pRxBuffPtr++; - husart->RxXferCount--; - - if (husart->RxXferCount == 0U) - { - /* Disable the USART Parity Error Interrupt and RXNE interrupt*/ - CLEAR_BIT(husart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE)); - - /* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */ - CLEAR_BIT(husart->Instance->CR3, USART_CR3_EIE); - - /* Clear RxISR function pointer */ - husart->RxISR = NULL; - - /* txdatacount is a temporary variable for MISRAC2012-Rule-13.5 */ - txdatacount = husart->TxXferCount; - - if (state == HAL_USART_STATE_BUSY_RX) - { - - /* Rx process is completed, restore husart->State to Ready */ - husart->State = HAL_USART_STATE_READY; - -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Rx Complete Callback */ - husart->RxCpltCallback(husart); -#else - /* Call legacy weak Rx Complete Callback */ - HAL_USART_RxCpltCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - } - else if ((READ_BIT(husart->Instance->CR1, USART_CR1_TCIE) != USART_CR1_TCIE) && - (txdatacount == 0U)) - { - /* TxRx process is completed, restore husart->State to Ready */ - husart->State = HAL_USART_STATE_READY; - -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Tx Rx Complete Callback */ - husart->TxRxCpltCallback(husart); -#else - /* Call legacy weak Tx Rx Complete Callback */ - HAL_USART_TxRxCpltCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - } - else - { - /* Nothing to do */ - } - } - else if (state == HAL_USART_STATE_BUSY_RX) - { - /* Send dummy byte in order to generate the clock for the Slave to Send the next data */ - husart->Instance->TDR = (USART_DUMMY_DATA & (uint16_t)0x00FF); - } - else - { - /* Nothing to do */ - } - } -} - -/** - * @brief Simplex receive an amount of data in non-blocking mode. - * @note Function called under interruption only, once - * interruptions have been enabled by HAL_USART_Receive_IT(). - * @note ISR function executed when data word length is 9 bits long. - * @param husart USART handle - * @retval None - */ -static void USART_RxISR_16BIT(USART_HandleTypeDef *husart) -{ - const HAL_USART_StateTypeDef state = husart->State; - uint16_t txdatacount; - uint16_t *tmp; - uint16_t uhMask = husart->Mask; - - if ((state == HAL_USART_STATE_BUSY_RX) || - (state == HAL_USART_STATE_BUSY_TX_RX)) - { - tmp = (uint16_t *) husart->pRxBuffPtr; - *tmp = (uint16_t)(husart->Instance->RDR & uhMask); - husart->pRxBuffPtr += 2U; - husart->RxXferCount--; - - if (husart->RxXferCount == 0U) - { - /* Disable the USART Parity Error Interrupt and RXNE interrupt*/ - CLEAR_BIT(husart->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE)); - - /* Disable the USART Error Interrupt: (Frame error, noise error, overrun error) */ - CLEAR_BIT(husart->Instance->CR3, USART_CR3_EIE); - - /* Clear RxISR function pointer */ - husart->RxISR = NULL; - - /* txdatacount is a temporary variable for MISRAC2012-Rule-13.5 */ - txdatacount = husart->TxXferCount; - - if (state == HAL_USART_STATE_BUSY_RX) - { - - /* Rx process is completed, restore husart->State to Ready */ - husart->State = HAL_USART_STATE_READY; - -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Rx Complete Callback */ - husart->RxCpltCallback(husart); -#else - /* Call legacy weak Rx Complete Callback */ - HAL_USART_RxCpltCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - } - else if ((READ_BIT(husart->Instance->CR1, USART_CR1_TCIE) != USART_CR1_TCIE) && - (txdatacount == 0U)) - { - /* TxRx process is completed, restore husart->State to Ready */ - husart->State = HAL_USART_STATE_READY; - -#if (USE_HAL_USART_REGISTER_CALLBACKS == 1) - /* Call registered Tx Rx Complete Callback */ - husart->TxRxCpltCallback(husart); -#else - /* Call legacy weak Tx Rx Complete Callback */ - HAL_USART_TxRxCpltCallback(husart); -#endif /* USE_HAL_USART_REGISTER_CALLBACKS */ - } - else - { - /* Nothing to do */ - } - } - else if (state == HAL_USART_STATE_BUSY_RX) - { - /* Send dummy byte in order to generate the clock for the Slave to Send the next data */ - husart->Instance->TDR = (USART_DUMMY_DATA & (uint16_t)0x00FF); - } - else - { - /* Nothing to do */ - } - } -} - - -/** - * @} - */ - -#endif /* HAL_USART_MODULE_ENABLED */ -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ -- cgit