| /** |
| ****************************************************************************** |
| * @file stm32f2xx_hal_irda.c |
| * @author MCD Application Team |
| * @brief IRDA HAL module driver. |
| * This file provides firmware functions to manage the following |
| * functionalities of the IrDA SIR ENDEC block (IrDA): |
| * + Initialization and de-initialization methods |
| * + IO operation methods |
| * + Peripheral Control methods |
| * |
| @verbatim |
| ============================================================================== |
| ##### How to use this driver ##### |
| ============================================================================== |
| [..] |
| The IRDA HAL driver can be used as follows: |
| |
| (#) Declare a IRDA_HandleTypeDef handle structure. |
| (#) Initialize the IRDA low level resources by implementing the HAL_IRDA_MspInit() API: |
| (##) Enable the USARTx interface clock. |
| (##) IRDA pins configuration: |
| (+++) Enable the clock for the IRDA GPIOs. |
| (+++) Configure these IRDA pins as alternate function pull-up. |
| (##) NVIC configuration if you need to use interrupt process (HAL_IRDA_Transmit_IT() |
| and HAL_IRDA_Receive_IT() APIs): |
| (+++) Configure the USARTx interrupt priority. |
| (+++) Enable the NVIC USART IRQ handle. |
| (##) DMA Configuration if you need to use DMA process (HAL_IRDA_Transmit_DMA() |
| and HAL_IRDA_Receive_DMA() APIs): |
| (+++) Declare a DMA handle structure for the Tx/Rx stream. |
| (+++) Enable the DMAx interface clock. |
| (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters. |
| (+++) Configure the DMA Tx/Rx Stream. |
| (+++) Associate the initialized DMA handle to the IRDA DMA Tx/Rx handle. |
| (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the DMA Tx/Rx Stream. |
| |
| (#) Program the Baud Rate, Word Length, Parity, IrDA Mode, Prescaler |
| and Mode(Receiver/Transmitter) in the hirda Init structure. |
| |
| (#) Initialize the IRDA registers by calling the HAL_IRDA_Init() API: |
| (++) This API configures also the low level Hardware GPIO, CLOCK, CORTEX...etc) |
| by calling the customized HAL_IRDA_MspInit() API. |
| -@@- The specific IRDA interrupts (Transmission complete interrupt, |
| RXNE interrupt and Error Interrupts) will be managed using the macros |
| __HAL_IRDA_ENABLE_IT() and __HAL_IRDA_DISABLE_IT() inside the transmit and receive process. |
| |
| (#) Three operation modes are available within this driver : |
| |
| *** Polling mode IO operation *** |
| ================================= |
| [..] |
| (+) Send an amount of data in blocking mode using HAL_IRDA_Transmit() |
| (+) Receive an amount of data in blocking mode using HAL_IRDA_Receive() |
| |
| *** Interrupt mode IO operation *** |
| =================================== |
| [..] |
| (+) Send an amount of data in non blocking mode using HAL_IRDA_Transmit_IT() |
| (+) At transmission end of transfer HAL_IRDA_TxCpltCallback is executed and user can |
| add his own code by customization of function pointer HAL_IRDA_TxCpltCallback |
| (+) Receive an amount of data in non blocking mode using HAL_IRDA_Receive_IT() |
| (+) At reception end of transfer HAL_IRDA_RxCpltCallback is executed and user can |
| add his own code by customization of function pointer HAL_IRDA_RxCpltCallback |
| (+) In case of transfer Error, HAL_IRDA_ErrorCallback() function is executed and user can |
| add his own code by customization of function pointer HAL_IRDA_ErrorCallback |
| |
| *** DMA mode IO operation *** |
| ============================= |
| [..] |
| (+) Send an amount of data in non blocking mode (DMA) using HAL_IRDA_Transmit_DMA() |
| (+) At transmission end of transfer HAL_IRDA_TxCpltCallback is executed and user can |
| add his own code by customization of function pointer HAL_IRDA_TxCpltCallback |
| (+) Receive an amount of data in non blocking mode (DMA) using HAL_IRDA_Receive_DMA() |
| (+) At reception end of transfer HAL_IRDA_RxCpltCallback is executed and user can |
| add his own code by customization of function pointer HAL_IRDA_RxCpltCallback |
| (+) In case of transfer Error, HAL_IRDA_ErrorCallback() function is executed and user can |
| add his own code by customization of function pointer HAL_IRDA_ErrorCallback |
| |
| *** IRDA HAL driver macros list *** |
| =================================== |
| [..] |
| Below the list of most used macros in IRDA HAL driver. |
| |
| (+) __HAL_IRDA_ENABLE: Enable the IRDA peripheral |
| (+) __HAL_IRDA_DISABLE: Disable the IRDA peripheral |
| (+) __HAL_IRDA_GET_FLAG : Checks whether the specified IRDA flag is set or not |
| (+) __HAL_IRDA_CLEAR_FLAG : Clears the specified IRDA pending flag |
| (+) __HAL_IRDA_ENABLE_IT: Enables the specified IRDA interrupt |
| (+) __HAL_IRDA_DISABLE_IT: Disables the specified IRDA interrupt |
| |
| [..] |
| (@) You can refer to the IRDA HAL driver header file for more useful macros |
| |
| @endverbatim |
| ****************************************************************************** |
| * @attention |
| * |
| * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| ****************************************************************************** |
| */ |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32f2xx_hal.h" |
| |
| /** @addtogroup STM32F2xx_HAL_Driver |
| * @{ |
| */ |
| |
| /** @defgroup IRDA IRDA |
| * @brief HAL IRDA module driver |
| * @{ |
| */ |
| |
| #ifdef HAL_IRDA_MODULE_ENABLED |
| |
| /* Private typedef -----------------------------------------------------------*/ |
| /* Private define ------------------------------------------------------------*/ |
| /** @addtogroup IRDA_Private_Constants |
| * @{ |
| */ |
| /** |
| * @} |
| */ |
| /* Private macro -------------------------------------------------------------*/ |
| /* Private variables ---------------------------------------------------------*/ |
| /* Private function prototypes -----------------------------------------------*/ |
| /** @addtogroup IRDA_Private_Functions |
| * @{ |
| */ |
| static void IRDA_SetConfig (IRDA_HandleTypeDef *hirda); |
| static HAL_StatusTypeDef IRDA_Transmit_IT(IRDA_HandleTypeDef *hirda); |
| static HAL_StatusTypeDef IRDA_EndTransmit_IT(IRDA_HandleTypeDef *hirda); |
| static HAL_StatusTypeDef IRDA_Receive_IT(IRDA_HandleTypeDef *hirda); |
| static void IRDA_DMATransmitCplt(DMA_HandleTypeDef *hdma); |
| static void IRDA_DMATransmitHalfCplt(DMA_HandleTypeDef *hdma); |
| static void IRDA_DMAReceiveCplt(DMA_HandleTypeDef *hdma); |
| static void IRDA_DMAReceiveHalfCplt(DMA_HandleTypeDef *hdma); |
| static void IRDA_DMAError(DMA_HandleTypeDef *hdma); |
| static void IRDA_DMAAbortOnError(DMA_HandleTypeDef *hdma); |
| static void IRDA_DMATxAbortCallback(DMA_HandleTypeDef *hdma); |
| static void IRDA_DMARxAbortCallback(DMA_HandleTypeDef *hdma); |
| static void IRDA_DMATxOnlyAbortCallback(DMA_HandleTypeDef *hdma); |
| static void IRDA_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma); |
| static HAL_StatusTypeDef IRDA_WaitOnFlagUntilTimeout(IRDA_HandleTypeDef *hirda, uint32_t Flag, FlagStatus Status, uint32_t Tickstart,uint32_t Timeout); |
| static void IRDA_EndTxTransfer(IRDA_HandleTypeDef *hirda); |
| static void IRDA_EndRxTransfer(IRDA_HandleTypeDef *hirda); |
| /** |
| * @} |
| */ |
| /* Exported functions --------------------------------------------------------*/ |
| /** @defgroup IRDA_Exported_Functions IrDA Exported Functions |
| * @{ |
| */ |
| |
| /** @defgroup IRDA_Exported_Functions_Group1 IrDA Initialization and de-initialization functions |
| * @brief Initialization and Configuration functions |
| * |
| @verbatim |
| |
| =============================================================================== |
| ##### Initialization and Configuration functions ##### |
| =============================================================================== |
| [..] |
| This subsection provides a set of functions allowing to initialize the USARTx or the UARTy |
| in IrDA mode. |
| (+) For the asynchronous mode only these parameters can be configured: |
| (++) BaudRate |
| (++) WordLength |
| (++) 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. |
| Depending on the frame length defined by the M bit (8-bits or 9-bits), |
| please refer to Reference manual for possible IRDA frame formats. |
| (++) Prescaler: A pulse of width less than two and greater than one PSC period(s) may or may |
| not be rejected. The receiver set up time should be managed by software. The IrDA physical layer |
| specification specifies a minimum of 10 ms delay between transmission and |
| reception (IrDA is a half duplex protocol). |
| (++) Mode: Receiver/transmitter modes |
| (++) IrDAMode: the IrDA can operate in the Normal mode or in the Low power mode. |
| [..] |
| The HAL_IRDA_Init() API follows IRDA configuration procedures (details for the procedures |
| are available in reference manual). |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Initializes the IRDA mode according to the specified |
| * parameters in the IRDA_InitTypeDef and create the associated handle. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_IRDA_Init(IRDA_HandleTypeDef *hirda) |
| { |
| /* Check the IRDA handle allocation */ |
| if(hirda == NULL) |
| { |
| return HAL_ERROR; |
| } |
| |
| /* Check the IRDA instance parameters */ |
| assert_param(IS_IRDA_INSTANCE(hirda->Instance)); |
| /* Check the IRDA mode parameter in the IRDA handle */ |
| assert_param(IS_IRDA_POWERMODE(hirda->Init.IrDAMode)); |
| |
| if(hirda->gState == HAL_IRDA_STATE_RESET) |
| { |
| /* Allocate lock resource and initialize it */ |
| hirda->Lock = HAL_UNLOCKED; |
| /* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */ |
| HAL_IRDA_MspInit(hirda); |
| } |
| |
| hirda->gState = HAL_IRDA_STATE_BUSY; |
| |
| /* Disable the IRDA peripheral */ |
| __HAL_IRDA_DISABLE(hirda); |
| |
| /* Set the IRDA communication parameters */ |
| IRDA_SetConfig(hirda); |
| |
| /* In IrDA mode, the following bits must be kept cleared: |
| - LINEN, STOP and CLKEN bits in the USART_CR2 register, |
| - SCEN and HDSEL bits in the USART_CR3 register.*/ |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR2_LINEN | USART_CR2_STOP | USART_CR2_CLKEN); |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_SCEN | USART_CR3_HDSEL); |
| |
| /* Enable the IRDA peripheral */ |
| __HAL_IRDA_ENABLE(hirda); |
| |
| /* Set the prescaler */ |
| MODIFY_REG(hirda->Instance->GTPR, USART_GTPR_PSC, hirda->Init.Prescaler); |
| |
| /* Configure the IrDA mode */ |
| MODIFY_REG(hirda->Instance->CR3, USART_CR3_IRLP, hirda->Init.IrDAMode); |
| |
| /* Enable the IrDA mode by setting the IREN bit in the CR3 register */ |
| SET_BIT(hirda->Instance->CR3, USART_CR3_IREN); |
| |
| /* Initialize the IRDA state*/ |
| hirda->ErrorCode = HAL_IRDA_ERROR_NONE; |
| hirda->gState= HAL_IRDA_STATE_READY; |
| hirda->RxState= HAL_IRDA_STATE_READY; |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief DeInitializes the IRDA peripheral |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_IRDA_DeInit(IRDA_HandleTypeDef *hirda) |
| { |
| /* Check the IRDA handle allocation */ |
| if(hirda == NULL) |
| { |
| return HAL_ERROR; |
| } |
| |
| /* Check the parameters */ |
| assert_param(IS_IRDA_INSTANCE(hirda->Instance)); |
| |
| hirda->gState = HAL_IRDA_STATE_BUSY; |
| |
| /* Disable the Peripheral */ |
| __HAL_IRDA_DISABLE(hirda); |
| |
| /* DeInit the low level hardware */ |
| HAL_IRDA_MspDeInit(hirda); |
| |
| hirda->ErrorCode = HAL_IRDA_ERROR_NONE; |
| |
| hirda->gState = HAL_IRDA_STATE_RESET; |
| hirda->RxState = HAL_IRDA_STATE_RESET; |
| |
| /* Release Lock */ |
| __HAL_UNLOCK(hirda); |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief IRDA MSP Init. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval None |
| */ |
| __weak void HAL_IRDA_MspInit(IRDA_HandleTypeDef *hirda) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hirda); |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_IRDA_MspInit could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief IRDA MSP DeInit. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval None |
| */ |
| __weak void HAL_IRDA_MspDeInit(IRDA_HandleTypeDef *hirda) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hirda); |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_IRDA_MspDeInit could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @defgroup IRDA_Exported_Functions_Group2 IO operation functions |
| * @brief IRDA Transmit/Receive functions |
| * |
| @verbatim |
| =============================================================================== |
| ##### IO operation functions ##### |
| =============================================================================== |
| This subsection provides a set of functions allowing to manage the IRDA data transfers. |
| [..] |
| IrDA is a half duplex communication protocol. If the Transmitter is busy, any data |
| on the IrDA receive line will be ignored by the IrDA decoder and if the Receiver |
| is busy, data on the TX from the USART to IrDA will not be encoded by IrDA. |
| While receiving data, transmission should be avoided as the data to be transmitted |
| could be corrupted. |
| |
| (#) There are two modes of transfer: |
| (++) Blocking mode: The communication is performed in polling mode. |
| The HAL status of all data processing is returned by the same function |
| after finishing transfer. |
| (++) No-Blocking mode: The communication is performed using Interrupts |
| or DMA, These APIs return the HAL status. |
| The end of the data processing will be indicated through the |
| dedicated IRDA IRQ when using Interrupt mode or the DMA IRQ when |
| using DMA mode. |
| The HAL_IRDA_TxCpltCallback(), HAL_IRDA_RxCpltCallback() user callbacks |
| will be executed respectively at the end of the transmit or Receive process |
| The HAL_IRDA_ErrorCallback() user callback will be executed when a communication error is detected |
| |
| (#) Blocking mode API's are : |
| (++) HAL_IRDA_Transmit() |
| (++) HAL_IRDA_Receive() |
| |
| (#) Non Blocking mode APIs with Interrupt are : |
| (++) HAL_IRDA_Transmit_IT() |
| (++) HAL_IRDA_Receive_IT() |
| (++) HAL_IRDA_IRQHandler() |
| |
| (#) Non Blocking mode functions with DMA are : |
| (++) HAL_IRDA_Transmit_DMA() |
| (++) HAL_IRDA_Receive_DMA() |
| |
| (#) A set of Transfer Complete Callbacks are provided in non Blocking mode: |
| (++) HAL_IRDA_TxCpltCallback() |
| (++) HAL_IRDA_RxCpltCallback() |
| (++) HAL_IRDA_ErrorCallback() |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Sends an amount of data in blocking mode. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @param pData Pointer to data buffer |
| * @param Size Amount of data to be sent |
| * @param Timeout Specify timeout value |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_IRDA_Transmit(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size, uint32_t Timeout) |
| { |
| uint16_t* tmp; |
| uint32_t tickstart = 0; |
| |
| /* Check that a Tx process is not already ongoing */ |
| if(hirda->gState == HAL_IRDA_STATE_READY) |
| { |
| if((pData == NULL) || (Size == 0)) |
| { |
| return HAL_ERROR; |
| } |
| |
| /* Process Locked */ |
| __HAL_LOCK(hirda); |
| |
| hirda->ErrorCode = HAL_IRDA_ERROR_NONE; |
| hirda->gState = HAL_IRDA_STATE_BUSY_TX; |
| |
| /* Init tickstart for timeout managment*/ |
| tickstart = HAL_GetTick(); |
| |
| hirda->TxXferSize = Size; |
| hirda->TxXferCount = Size; |
| while(hirda->TxXferCount > 0) |
| { |
| hirda->TxXferCount--; |
| if(hirda->Init.WordLength == IRDA_WORDLENGTH_9B) |
| { |
| if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK) |
| { |
| return HAL_TIMEOUT; |
| } |
| tmp = (uint16_t*) pData; |
| hirda->Instance->DR = (*tmp & (uint16_t)0x01FF); |
| if(hirda->Init.Parity == IRDA_PARITY_NONE) |
| { |
| pData +=2; |
| } |
| else |
| { |
| pData +=1; |
| } |
| } |
| else |
| { |
| if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK) |
| { |
| return HAL_TIMEOUT; |
| } |
| hirda->Instance->DR = (*pData++ & (uint8_t)0xFF); |
| } |
| } |
| |
| if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TC, RESET, tickstart, Timeout) != HAL_OK) |
| { |
| return HAL_TIMEOUT; |
| } |
| |
| /* At end of Tx process, restore hirda->gState to Ready */ |
| hirda->gState = HAL_IRDA_STATE_READY; |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(hirda); |
| |
| return HAL_OK; |
| } |
| else |
| { |
| return HAL_BUSY; |
| } |
| } |
| |
| /** |
| * @brief Receive an amount of data in blocking mode. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @param pData Pointer to data buffer |
| * @param Size Amount of data to be received |
| * @param Timeout Specify timeout value |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_IRDA_Receive(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size, uint32_t Timeout) |
| { |
| uint16_t* tmp; |
| uint32_t tickstart = 0; |
| |
| /* Check that a Rx process is not already ongoing */ |
| if(hirda->RxState == HAL_IRDA_STATE_READY) |
| { |
| if((pData == NULL) || (Size == 0)) |
| { |
| return HAL_ERROR; |
| } |
| |
| /* Process Locked */ |
| __HAL_LOCK(hirda); |
| |
| hirda->ErrorCode = HAL_IRDA_ERROR_NONE; |
| hirda->RxState = HAL_IRDA_STATE_BUSY_RX; |
| |
| /* Init tickstart for timeout managment*/ |
| tickstart = HAL_GetTick(); |
| |
| hirda->RxXferSize = Size; |
| hirda->RxXferCount = Size; |
| /* Check the remain data to be received */ |
| while(hirda->RxXferCount > 0) |
| { |
| hirda->RxXferCount--; |
| if(hirda->Init.WordLength == IRDA_WORDLENGTH_9B) |
| { |
| if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_RXNE, RESET, tickstart, Timeout) != HAL_OK) |
| { |
| return HAL_TIMEOUT; |
| } |
| tmp = (uint16_t*) pData ; |
| if(hirda->Init.Parity == IRDA_PARITY_NONE) |
| { |
| *tmp = (uint16_t)(hirda->Instance->DR & (uint16_t)0x01FF); |
| pData +=2; |
| } |
| else |
| { |
| *tmp = (uint16_t)(hirda->Instance->DR & (uint16_t)0x00FF); |
| pData +=1; |
| } |
| } |
| else |
| { |
| if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_RXNE, RESET, tickstart, Timeout) != HAL_OK) |
| { |
| return HAL_TIMEOUT; |
| } |
| if(hirda->Init.Parity == IRDA_PARITY_NONE) |
| { |
| *pData++ = (uint8_t)(hirda->Instance->DR & (uint8_t)0x00FF); |
| } |
| else |
| { |
| *pData++ = (uint8_t)(hirda->Instance->DR & (uint8_t)0x007F); |
| } |
| } |
| } |
| |
| /* At end of Rx process, restore hirda->RxState to Ready */ |
| hirda->RxState = HAL_IRDA_STATE_READY; |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(hirda); |
| |
| return HAL_OK; |
| } |
| else |
| { |
| return HAL_BUSY; |
| } |
| } |
| |
| /** |
| * @brief Send an amount of data in non blocking mode. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @param pData Pointer to data buffer |
| * @param Size Amount of data to be sent |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_IRDA_Transmit_IT(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size) |
| { |
| /* Check that a Tx process is not already ongoing */ |
| if(hirda->gState == HAL_IRDA_STATE_READY) |
| { |
| if((pData == NULL) || (Size == 0)) |
| { |
| return HAL_ERROR; |
| } |
| /* Process Locked */ |
| __HAL_LOCK(hirda); |
| |
| hirda->pTxBuffPtr = pData; |
| hirda->TxXferSize = Size; |
| hirda->TxXferCount = Size; |
| hirda->ErrorCode = HAL_IRDA_ERROR_NONE; |
| hirda->gState = HAL_IRDA_STATE_BUSY_TX; |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(hirda); |
| |
| /* Enable the IRDA Transmit Data Register Empty Interrupt */ |
| SET_BIT(hirda->Instance->CR1, USART_CR1_TXEIE); |
| |
| return HAL_OK; |
| } |
| else |
| { |
| return HAL_BUSY; |
| } |
| } |
| |
| /** |
| * @brief Receives an amount of data in non blocking mode. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @param pData Pointer to data buffer |
| * @param Size Amount of data to be received |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_IRDA_Receive_IT(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size) |
| { |
| /* Check that a Rx process is not already ongoing */ |
| if(hirda->RxState == HAL_IRDA_STATE_READY) |
| { |
| if((pData == NULL) || (Size == 0)) |
| { |
| return HAL_ERROR; |
| } |
| |
| /* Process Locked */ |
| __HAL_LOCK(hirda); |
| |
| hirda->pRxBuffPtr = pData; |
| hirda->RxXferSize = Size; |
| hirda->RxXferCount = Size; |
| hirda->ErrorCode = HAL_IRDA_ERROR_NONE; |
| hirda->RxState = HAL_IRDA_STATE_BUSY_RX; |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(hirda); |
| |
| /* Enable the IRDA Parity Error and Data Register not empty Interrupts */ |
| SET_BIT(hirda->Instance->CR1, USART_CR1_PEIE| USART_CR1_RXNEIE); |
| |
| /* Enable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */ |
| SET_BIT(hirda->Instance->CR3, USART_CR3_EIE); |
| |
| return HAL_OK; |
| } |
| else |
| { |
| return HAL_BUSY; |
| } |
| } |
| |
| /** |
| * @brief Sends an amount of data in non blocking mode. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @param pData Pointer to data buffer |
| * @param Size Amount of data to be sent |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_IRDA_Transmit_DMA(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size) |
| { |
| uint32_t *tmp; |
| |
| /* Check that a Tx process is not already ongoing */ |
| if(hirda->gState == HAL_IRDA_STATE_READY) |
| { |
| if((pData == NULL) || (Size == 0)) |
| { |
| return HAL_ERROR; |
| } |
| |
| /* Process Locked */ |
| __HAL_LOCK(hirda); |
| |
| hirda->pTxBuffPtr = pData; |
| hirda->TxXferSize = Size; |
| hirda->TxXferCount = Size; |
| hirda->ErrorCode = HAL_IRDA_ERROR_NONE; |
| hirda->gState = HAL_IRDA_STATE_BUSY_TX; |
| |
| /* Set the IRDA DMA transfer complete callback */ |
| hirda->hdmatx->XferCpltCallback = IRDA_DMATransmitCplt; |
| |
| /* Set the IRDA DMA half transfer complete callback */ |
| hirda->hdmatx->XferHalfCpltCallback = IRDA_DMATransmitHalfCplt; |
| |
| /* Set the DMA error callback */ |
| hirda->hdmatx->XferErrorCallback = IRDA_DMAError; |
| |
| /* Set the DMA abort callback */ |
| hirda->hdmatx->XferAbortCallback = NULL; |
| |
| /* Enable the IRDA transmit DMA Stream */ |
| tmp = (uint32_t*)&pData; |
| HAL_DMA_Start_IT(hirda->hdmatx, *(uint32_t*)tmp, (uint32_t)&hirda->Instance->DR, Size); |
| |
| /* Clear the TC flag in the SR register by writing 0 to it */ |
| __HAL_IRDA_CLEAR_FLAG(hirda, IRDA_FLAG_TC); |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(hirda); |
| |
| /* Enable the DMA transfer for transmit request by setting the DMAT bit |
| in the USART CR3 register */ |
| SET_BIT(hirda->Instance->CR3, USART_CR3_DMAT); |
| |
| return HAL_OK; |
| } |
| else |
| { |
| return HAL_BUSY; |
| } |
| } |
| |
| /** |
| * @brief Receives an amount of data in non blocking mode. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @param pData Pointer to data buffer |
| * @param Size Amount of data to be received |
| * @note When the IRDA parity is enabled (PCE = 1) the data received contain the parity bit. |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_IRDA_Receive_DMA(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size) |
| { |
| uint32_t *tmp; |
| |
| /* Check that a Rx process is not already ongoing */ |
| if(hirda->RxState == HAL_IRDA_STATE_READY) |
| { |
| if((pData == NULL) || (Size == 0)) |
| { |
| return HAL_ERROR; |
| } |
| |
| /* Process Locked */ |
| __HAL_LOCK(hirda); |
| |
| hirda->pRxBuffPtr = pData; |
| hirda->RxXferSize = Size; |
| hirda->ErrorCode = HAL_IRDA_ERROR_NONE; |
| hirda->RxState = HAL_IRDA_STATE_BUSY_RX; |
| |
| /* Set the IRDA DMA transfer complete callback */ |
| hirda->hdmarx->XferCpltCallback = IRDA_DMAReceiveCplt; |
| |
| /* Set the IRDA DMA half transfer complete callback */ |
| hirda->hdmarx->XferHalfCpltCallback = IRDA_DMAReceiveHalfCplt; |
| |
| /* Set the DMA error callback */ |
| hirda->hdmarx->XferErrorCallback = IRDA_DMAError; |
| |
| /* Set the DMA abort callback */ |
| hirda->hdmarx->XferAbortCallback = NULL; |
| |
| /* Enable the DMA Stream */ |
| tmp = (uint32_t*)&pData; |
| HAL_DMA_Start_IT(hirda->hdmarx, (uint32_t)&hirda->Instance->DR, *(uint32_t*)tmp, Size); |
| |
| /* Clear the Overrun flag just before enabling the DMA Rx request: can be mandatory for the second transfer */ |
| __HAL_IRDA_CLEAR_OREFLAG(hirda); |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(hirda); |
| |
| /* Enable the IRDA Parity Error Interrupt */ |
| SET_BIT(hirda->Instance->CR1, USART_CR1_PEIE); |
| |
| /* Enable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */ |
| SET_BIT(hirda->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(hirda->Instance->CR3, USART_CR3_DMAR); |
| |
| return HAL_OK; |
| } |
| else |
| { |
| return HAL_BUSY; |
| } |
| } |
| |
| /** |
| * @brief Pauses the DMA Transfer. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_IRDA_DMAPause(IRDA_HandleTypeDef *hirda) |
| { |
| uint32_t dmarequest = 0x00U; |
| |
| /* Process Locked */ |
| __HAL_LOCK(hirda); |
| |
| dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT); |
| if((hirda->gState == HAL_IRDA_STATE_BUSY_TX) && dmarequest) |
| { |
| /* Disable the IRDA DMA Tx request */ |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT); |
| } |
| |
| dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR); |
| if((hirda->RxState == HAL_IRDA_STATE_BUSY_RX) && dmarequest) |
| { |
| /* Disable PE and ERR (Frame error, noise error, overrun error) interrupts */ |
| CLEAR_BIT(hirda->Instance->CR1, USART_CR1_PEIE); |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE); |
| |
| /* Disable the IRDA DMA Rx request */ |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR); |
| } |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(hirda); |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Resumes the DMA Transfer. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_IRDA_DMAResume(IRDA_HandleTypeDef *hirda) |
| { |
| /* Process Locked */ |
| __HAL_LOCK(hirda); |
| |
| if(hirda->gState == HAL_IRDA_STATE_BUSY_TX) |
| { |
| /* Enable the IRDA DMA Tx request */ |
| SET_BIT(hirda->Instance->CR3, USART_CR3_DMAT); |
| } |
| if(hirda->RxState == HAL_IRDA_STATE_BUSY_RX) |
| { |
| /* Clear the Overrun flag before resuming the Rx transfer */ |
| __HAL_IRDA_CLEAR_OREFLAG(hirda); |
| |
| /* Reenable PE and ERR (Frame error, noise error, overrun error) interrupts */ |
| SET_BIT(hirda->Instance->CR1, USART_CR1_PEIE); |
| SET_BIT(hirda->Instance->CR3, USART_CR3_EIE); |
| |
| /* Enable the IRDA DMA Rx request */ |
| SET_BIT(hirda->Instance->CR3, USART_CR3_DMAR); |
| } |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(hirda); |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Stops the DMA Transfer. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_IRDA_DMAStop(IRDA_HandleTypeDef *hirda) |
| { |
| uint32_t dmarequest = 0x00U; |
| /* The Lock is not implemented on this API to allow the user application |
| to call the HAL IRDA API under callbacks HAL_IRDA_TxCpltCallback() / HAL_IRDA_RxCpltCallback(): |
| when calling HAL_DMA_Abort() API the DMA TX/RX Transfer complete interrupt is generated |
| and the correspond call back is executed HAL_IRDA_TxCpltCallback() / HAL_IRDA_RxCpltCallback() |
| */ |
| |
| /* Stop IRDA DMA Tx request if ongoing */ |
| dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT); |
| if((hirda->gState == HAL_IRDA_STATE_BUSY_TX) && dmarequest) |
| { |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT); |
| |
| /* Abort the IRDA DMA Tx channel */ |
| if(hirda->hdmatx != NULL) |
| { |
| HAL_DMA_Abort(hirda->hdmatx); |
| } |
| IRDA_EndTxTransfer(hirda); |
| } |
| |
| /* Stop IRDA DMA Rx request if ongoing */ |
| dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR); |
| if((hirda->RxState == HAL_IRDA_STATE_BUSY_RX) && dmarequest) |
| { |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR); |
| |
| /* Abort the IRDA DMA Rx channel */ |
| if(hirda->hdmarx != NULL) |
| { |
| HAL_DMA_Abort(hirda->hdmarx); |
| } |
| IRDA_EndRxTransfer(hirda); |
| } |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Abort ongoing transfers (blocking mode). |
| * @param hirda IRDA handle. |
| * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. |
| * This procedure performs following operations : |
| * - Disable PPP Interrupts |
| * - 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_IRDA_Abort(IRDA_HandleTypeDef *hirda) |
| { |
| /* Disable TXEIE, TCIE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ |
| CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE)); |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE); |
| |
| /* Disable the IRDA DMA Tx request if enabled */ |
| if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT)) |
| { |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT); |
| |
| /* Abort the IRDA DMA Tx channel : use blocking DMA Abort API (no callback) */ |
| if(hirda->hdmatx != NULL) |
| { |
| /* Set the IRDA DMA Abort callback to Null. |
| No call back execution at end of DMA abort procedure */ |
| hirda->hdmatx->XferAbortCallback = NULL; |
| |
| HAL_DMA_Abort(hirda->hdmatx); |
| } |
| } |
| |
| /* Disable the IRDA DMA Rx request if enabled */ |
| if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR)) |
| { |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR); |
| |
| /* Abort the IRDA DMA Rx channel : use blocking DMA Abort API (no callback) */ |
| if(hirda->hdmarx != NULL) |
| { |
| /* Set the IRDA DMA Abort callback to Null. |
| No call back execution at end of DMA abort procedure */ |
| hirda->hdmarx->XferAbortCallback = NULL; |
| |
| HAL_DMA_Abort(hirda->hdmarx); |
| } |
| } |
| |
| /* Reset Tx and Rx transfer counters */ |
| hirda->TxXferCount = 0x00U; |
| hirda->RxXferCount = 0x00U; |
| |
| /* Reset ErrorCode */ |
| hirda->ErrorCode = HAL_IRDA_ERROR_NONE; |
| |
| /* Restore hirda->RxState and hirda->gState to Ready */ |
| hirda->RxState = HAL_IRDA_STATE_READY; |
| hirda->gState = HAL_IRDA_STATE_READY; |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Abort ongoing Transmit transfer (blocking mode). |
| * @param hirda IRDA handle. |
| * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. |
| * This procedure performs following operations : |
| * - Disable PPP Interrupts |
| * - 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_IRDA_AbortTransmit(IRDA_HandleTypeDef *hirda) |
| { |
| /* Disable TXEIE and TCIE interrupts */ |
| CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE)); |
| |
| /* Disable the IRDA DMA Tx request if enabled */ |
| if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT)) |
| { |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT); |
| |
| /* Abort the IRDA DMA Tx channel : use blocking DMA Abort API (no callback) */ |
| if(hirda->hdmatx != NULL) |
| { |
| /* Set the IRDA DMA Abort callback to Null. |
| No call back execution at end of DMA abort procedure */ |
| hirda->hdmatx->XferAbortCallback = NULL; |
| |
| HAL_DMA_Abort(hirda->hdmatx); |
| } |
| } |
| |
| /* Reset Tx transfer counter */ |
| hirda->TxXferCount = 0x00U; |
| |
| /* Restore hirda->gState to Ready */ |
| hirda->gState = HAL_IRDA_STATE_READY; |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Abort ongoing Receive transfer (blocking mode). |
| * @param hirda IRDA handle. |
| * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. |
| * This procedure performs following operations : |
| * - Disable PPP Interrupts |
| * - 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_IRDA_AbortReceive(IRDA_HandleTypeDef *hirda) |
| { |
| /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ |
| CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE)); |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE); |
| |
| /* Disable the IRDA DMA Rx request if enabled */ |
| if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR)) |
| { |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR); |
| |
| /* Abort the IRDA DMA Rx channel : use blocking DMA Abort API (no callback) */ |
| if(hirda->hdmarx != NULL) |
| { |
| /* Set the IRDA DMA Abort callback to Null. |
| No call back execution at end of DMA abort procedure */ |
| hirda->hdmarx->XferAbortCallback = NULL; |
| |
| HAL_DMA_Abort(hirda->hdmarx); |
| } |
| } |
| |
| /* Reset Rx transfer counter */ |
| hirda->RxXferCount = 0x00U; |
| |
| /* Restore hirda->RxState to Ready */ |
| hirda->RxState = HAL_IRDA_STATE_READY; |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Abort ongoing transfers (Interrupt mode). |
| * @param hirda IRDA handle. |
| * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. |
| * This procedure performs following operations : |
| * - Disable PPP Interrupts |
| * - 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_IRDA_Abort_IT(IRDA_HandleTypeDef *hirda) |
| { |
| uint32_t AbortCplt = 1U; |
| |
| /* Disable TXEIE, TCIE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ |
| CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE)); |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE); |
| |
| /* If DMA Tx and/or DMA Rx Handles are associated to IRDA Handle, DMA Abort complete callbacks should be initialised |
| before any call to DMA Abort functions */ |
| /* DMA Tx Handle is valid */ |
| if(hirda->hdmatx != NULL) |
| { |
| /* Set DMA Abort Complete callback if IRDA DMA Tx request if enabled. |
| Otherwise, set it to NULL */ |
| if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT)) |
| { |
| hirda->hdmatx->XferAbortCallback = IRDA_DMATxAbortCallback; |
| } |
| else |
| { |
| hirda->hdmatx->XferAbortCallback = NULL; |
| } |
| } |
| /* DMA Rx Handle is valid */ |
| if(hirda->hdmarx != NULL) |
| { |
| /* Set DMA Abort Complete callback if IRDA DMA Rx request if enabled. |
| Otherwise, set it to NULL */ |
| if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR)) |
| { |
| hirda->hdmarx->XferAbortCallback = IRDA_DMARxAbortCallback; |
| } |
| else |
| { |
| hirda->hdmarx->XferAbortCallback = NULL; |
| } |
| } |
| |
| /* Disable the IRDA DMA Tx request if enabled */ |
| if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT)) |
| { |
| /* Disable DMA Tx at IRDA level */ |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT); |
| |
| /* Abort the IRDA DMA Tx channel : use non blocking DMA Abort API (callback) */ |
| if(hirda->hdmatx != NULL) |
| { |
| /* IRDA Tx DMA Abort callback has already been initialised : |
| will lead to call HAL_IRDA_AbortCpltCallback() at end of DMA abort procedure */ |
| |
| /* Abort DMA TX */ |
| if(HAL_DMA_Abort_IT(hirda->hdmatx) != HAL_OK) |
| { |
| hirda->hdmatx->XferAbortCallback = NULL; |
| } |
| else |
| { |
| AbortCplt = 0x00U; |
| } |
| } |
| } |
| |
| /* Disable the IRDA DMA Rx request if enabled */ |
| if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR)) |
| { |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR); |
| |
| /* Abort the IRDA DMA Rx channel : use non blocking DMA Abort API (callback) */ |
| if(hirda->hdmarx != NULL) |
| { |
| /* IRDA Rx DMA Abort callback has already been initialised : |
| will lead to call HAL_IRDA_AbortCpltCallback() at end of DMA abort procedure */ |
| |
| /* Abort DMA RX */ |
| if(HAL_DMA_Abort_IT(hirda->hdmarx) != HAL_OK) |
| { |
| hirda->hdmarx->XferAbortCallback = NULL; |
| AbortCplt = 0x01U; |
| } |
| else |
| { |
| AbortCplt = 0x00U; |
| } |
| } |
| } |
| |
| /* if no DMA abort complete callback execution is required => call user Abort Complete callback */ |
| if(AbortCplt == 0x01U) |
| { |
| /* Reset Tx and Rx transfer counters */ |
| hirda->TxXferCount = 0x00U; |
| hirda->RxXferCount = 0x00U; |
| |
| /* Reset ErrorCode */ |
| hirda->ErrorCode = HAL_IRDA_ERROR_NONE; |
| |
| /* Restore hirda->gState and hirda->RxState to Ready */ |
| hirda->gState = HAL_IRDA_STATE_READY; |
| hirda->RxState = HAL_IRDA_STATE_READY; |
| |
| /* As no DMA to be aborted, call directly user Abort complete callback */ |
| HAL_IRDA_AbortCpltCallback(hirda); |
| } |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Abort ongoing Transmit transfer (Interrupt mode). |
| * @param hirda IRDA handle. |
| * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. |
| * This procedure performs following operations : |
| * - Disable PPP Interrupts |
| * - 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_IRDA_AbortTransmit_IT(IRDA_HandleTypeDef *hirda) |
| { |
| /* Disable TXEIE and TCIE interrupts */ |
| CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE)); |
| |
| /* Disable the IRDA DMA Tx request if enabled */ |
| if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT)) |
| { |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT); |
| |
| /* Abort the IRDA DMA Tx channel : use blocking DMA Abort API (no callback) */ |
| if(hirda->hdmatx != NULL) |
| { |
| /* Set the IRDA DMA Abort callback : |
| will lead to call HAL_IRDA_AbortCpltCallback() at end of DMA abort procedure */ |
| hirda->hdmatx->XferAbortCallback = IRDA_DMATxOnlyAbortCallback; |
| |
| /* Abort DMA TX */ |
| if(HAL_DMA_Abort_IT(hirda->hdmatx) != HAL_OK) |
| { |
| /* Call Directly hirda->hdmatx->XferAbortCallback function in case of error */ |
| hirda->hdmatx->XferAbortCallback(hirda->hdmatx); |
| } |
| } |
| else |
| { |
| /* Reset Tx transfer counter */ |
| hirda->TxXferCount = 0x00U; |
| |
| /* Restore hirda->gState to Ready */ |
| hirda->gState = HAL_IRDA_STATE_READY; |
| |
| /* As no DMA to be aborted, call directly user Abort complete callback */ |
| HAL_IRDA_AbortTransmitCpltCallback(hirda); |
| } |
| } |
| else |
| { |
| /* Reset Tx transfer counter */ |
| hirda->TxXferCount = 0x00U; |
| |
| /* Restore hirda->gState to Ready */ |
| hirda->gState = HAL_IRDA_STATE_READY; |
| |
| /* As no DMA to be aborted, call directly user Abort complete callback */ |
| HAL_IRDA_AbortTransmitCpltCallback(hirda); |
| } |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Abort ongoing Receive transfer (Interrupt mode). |
| * @param hirda IRDA handle. |
| * @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. |
| * This procedure performs following operations : |
| * - Disable PPP Interrupts |
| * - 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_IRDA_AbortReceive_IT(IRDA_HandleTypeDef *hirda) |
| { |
| /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ |
| CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE)); |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE); |
| |
| /* Disable the IRDA DMA Rx request if enabled */ |
| if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR)) |
| { |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR); |
| |
| /* Abort the IRDA DMA Rx channel : use blocking DMA Abort API (no callback) */ |
| if(hirda->hdmarx != NULL) |
| { |
| /* Set the IRDA DMA Abort callback : |
| will lead to call HAL_IRDA_AbortCpltCallback() at end of DMA abort procedure */ |
| hirda->hdmarx->XferAbortCallback = IRDA_DMARxOnlyAbortCallback; |
| |
| /* Abort DMA RX */ |
| if(HAL_DMA_Abort_IT(hirda->hdmarx) != HAL_OK) |
| { |
| /* Call Directly hirda->hdmarx->XferAbortCallback function in case of error */ |
| hirda->hdmarx->XferAbortCallback(hirda->hdmarx); |
| } |
| } |
| else |
| { |
| /* Reset Rx transfer counter */ |
| hirda->RxXferCount = 0x00U; |
| |
| /* Restore hirda->RxState to Ready */ |
| hirda->RxState = HAL_IRDA_STATE_READY; |
| |
| /* As no DMA to be aborted, call directly user Abort complete callback */ |
| HAL_IRDA_AbortReceiveCpltCallback(hirda); |
| } |
| } |
| else |
| { |
| /* Reset Rx transfer counter */ |
| hirda->RxXferCount = 0x00U; |
| |
| /* Restore hirda->RxState to Ready */ |
| hirda->RxState = HAL_IRDA_STATE_READY; |
| |
| /* As no DMA to be aborted, call directly user Abort complete callback */ |
| HAL_IRDA_AbortReceiveCpltCallback(hirda); |
| } |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief This function handles IRDA interrupt request. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval None |
| */ |
| void HAL_IRDA_IRQHandler(IRDA_HandleTypeDef *hirda) |
| { |
| uint32_t isrflags = READ_REG(hirda->Instance->SR); |
| uint32_t cr1its = READ_REG(hirda->Instance->CR1); |
| uint32_t cr3its = READ_REG(hirda->Instance->CR3); |
| uint32_t errorflags = 0x00U; |
| uint32_t dmarequest = 0x00U; |
| |
| /* If no error occurs */ |
| errorflags = (isrflags & (uint32_t)(USART_SR_PE | USART_SR_FE | USART_SR_ORE | USART_SR_NE)); |
| if(errorflags == RESET) |
| { |
| /* IRDA in mode Receiver -----------------------------------------------*/ |
| if(((isrflags & USART_SR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET)) |
| { |
| IRDA_Receive_IT(hirda); |
| return; |
| } |
| } |
| |
| /* If some errors occur */ |
| if((errorflags != RESET) && (((cr3its & USART_CR3_EIE) != RESET) || ((cr1its & (USART_CR1_RXNEIE | USART_CR1_PEIE)) != RESET))) |
| { |
| /* IRDA parity error interrupt occurred -------------------------------*/ |
| if(((isrflags & USART_SR_PE) != RESET) && ((cr1its & USART_CR1_PEIE) != RESET)) |
| { |
| hirda->ErrorCode |= HAL_IRDA_ERROR_PE; |
| } |
| |
| /* IRDA noise error interrupt occurred --------------------------------*/ |
| if(((isrflags & USART_SR_NE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET)) |
| { |
| hirda->ErrorCode |= HAL_IRDA_ERROR_NE; |
| } |
| |
| /* IRDA frame error interrupt occurred --------------------------------*/ |
| if(((isrflags & USART_SR_FE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET)) |
| { |
| hirda->ErrorCode |= HAL_IRDA_ERROR_FE; |
| } |
| |
| /* IRDA Over-Run interrupt occurred -----------------------------------*/ |
| if(((isrflags & USART_SR_ORE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET)) |
| { |
| hirda->ErrorCode |= HAL_IRDA_ERROR_ORE; |
| } |
| /* Call IRDA Error Call back function if need be -----------------------*/ |
| if(hirda->ErrorCode != HAL_IRDA_ERROR_NONE) |
| { |
| /* IRDA in mode Receiver ---------------------------------------------*/ |
| if(((isrflags & USART_SR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET)) |
| { |
| IRDA_Receive_IT(hirda); |
| } |
| |
| dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR); |
| /* If Overrun error occurs, or if any error occurs in DMA mode reception, |
| consider error as blocking */ |
| if(((hirda->ErrorCode & HAL_IRDA_ERROR_ORE) != RESET) || dmarequest) |
| { |
| /* Blocking error : transfer is aborted |
| Set the IRDA state ready to be able to start again the process, |
| Disable Rx Interrupts, and disable Rx DMA request, if ongoing */ |
| IRDA_EndRxTransfer(hirda); |
| |
| /* Disable the IRDA DMA Rx request if enabled */ |
| if(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR)) |
| { |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR); |
| |
| /* Abort the IRDA DMA Rx channel */ |
| if(hirda->hdmarx != NULL) |
| { |
| /* Set the IRDA DMA Abort callback : |
| will lead to call HAL_IRDA_ErrorCallback() at end of DMA abort procedure */ |
| hirda->hdmarx->XferAbortCallback = IRDA_DMAAbortOnError; |
| |
| if(HAL_DMA_Abort_IT(hirda->hdmarx) != HAL_OK) |
| { |
| /* Call Directly XferAbortCallback function in case of error */ |
| hirda->hdmarx->XferAbortCallback(hirda->hdmarx); |
| } |
| } |
| else |
| { |
| /* Call user error callback */ |
| HAL_IRDA_ErrorCallback(hirda); |
| } |
| } |
| else |
| { |
| /* Call user error callback */ |
| HAL_IRDA_ErrorCallback(hirda); |
| } |
| } |
| else |
| { |
| /* Non Blocking error : transfer could go on. |
| Error is notified to user through user error callback */ |
| HAL_IRDA_ErrorCallback(hirda); |
| hirda->ErrorCode = HAL_IRDA_ERROR_NONE; |
| } |
| } |
| return; |
| } /* End if some error occurs */ |
| |
| /* IRDA in mode Transmitter ------------------------------------------------*/ |
| if(((isrflags & USART_SR_TXE) != RESET) && ((cr1its & USART_CR1_TXEIE) != RESET)) |
| { |
| IRDA_Transmit_IT(hirda); |
| return; |
| } |
| |
| /* IRDA in mode Transmitter end --------------------------------------------*/ |
| if(((isrflags & USART_SR_TC) != RESET) && ((cr1its & USART_CR1_TCIE) != RESET)) |
| { |
| IRDA_EndTransmit_IT(hirda); |
| return; |
| } |
| } |
| |
| /** |
| * @brief End ongoing Tx transfer on IRDA peripheral (following error detection or Transmit completion). |
| * @param hirda IRDA handle. |
| * @retval None |
| */ |
| static void IRDA_EndTxTransfer(IRDA_HandleTypeDef *hirda) |
| { |
| /* Disable TXEIE and TCIE interrupts */ |
| CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE)); |
| |
| /* At end of Tx process, restore hirda->gState to Ready */ |
| hirda->gState = HAL_IRDA_STATE_READY; |
| } |
| |
| /** |
| * @brief End ongoing Rx transfer on IRDA peripheral (following error detection or Reception completion). |
| * @param hirda IRDA handle. |
| * @retval None |
| */ |
| static void IRDA_EndRxTransfer(IRDA_HandleTypeDef *hirda) |
| { |
| /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ |
| CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE)); |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE); |
| |
| /* At end of Rx process, restore hirda->RxState to Ready */ |
| hirda->RxState = HAL_IRDA_STATE_READY; |
| } |
| |
| /** |
| * @brief DMA IRDA 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 IRDA_DMAAbortOnError(DMA_HandleTypeDef *hdma) |
| { |
| IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
| hirda->RxXferCount = 0x00; |
| hirda->TxXferCount = 0x00; |
| |
| HAL_IRDA_ErrorCallback(hirda); |
| } |
| |
| /** |
| * @brief DMA IRDA 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 IRDA_DMATxAbortCallback(DMA_HandleTypeDef *hdma) |
| { |
| IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
| |
| hirda->hdmatx->XferAbortCallback = NULL; |
| |
| /* Check if an Abort process is still ongoing */ |
| if(hirda->hdmarx != NULL) |
| { |
| if(hirda->hdmarx->XferAbortCallback != NULL) |
| { |
| return; |
| } |
| } |
| |
| /* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */ |
| hirda->TxXferCount = 0x00U; |
| hirda->RxXferCount = 0x00U; |
| |
| /* Reset ErrorCode */ |
| hirda->ErrorCode = HAL_IRDA_ERROR_NONE; |
| |
| /* Restore hirda->gState and hirda->RxState to Ready */ |
| hirda->gState = HAL_IRDA_STATE_READY; |
| hirda->RxState = HAL_IRDA_STATE_READY; |
| |
| /* Call user Abort complete callback */ |
| HAL_IRDA_AbortCpltCallback(hirda); |
| } |
| |
| /** |
| * @brief DMA IRDA 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 IRDA_DMARxAbortCallback(DMA_HandleTypeDef *hdma) |
| { |
| IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
| |
| hirda->hdmarx->XferAbortCallback = NULL; |
| |
| /* Check if an Abort process is still ongoing */ |
| if(hirda->hdmatx != NULL) |
| { |
| if(hirda->hdmatx->XferAbortCallback != NULL) |
| { |
| return; |
| } |
| } |
| |
| /* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */ |
| hirda->TxXferCount = 0x00U; |
| hirda->RxXferCount = 0x00U; |
| |
| /* Reset ErrorCode */ |
| hirda->ErrorCode = HAL_IRDA_ERROR_NONE; |
| |
| /* Restore hirda->gState and hirda->RxState to Ready */ |
| hirda->gState = HAL_IRDA_STATE_READY; |
| hirda->RxState = HAL_IRDA_STATE_READY; |
| |
| /* Call user Abort complete callback */ |
| HAL_IRDA_AbortCpltCallback(hirda); |
| } |
| |
| /** |
| * @brief DMA IRDA Tx communication abort callback, when initiated by user by a call to |
| * HAL_IRDA_AbortTransmit_IT API (Abort only Tx transfer) |
| * (This callback is executed at end of DMA Tx Abort procedure following user abort request, |
| * and leads to user Tx Abort Complete callback execution). |
| * @param hdma DMA handle. |
| * @retval None |
| */ |
| static void IRDA_DMATxOnlyAbortCallback(DMA_HandleTypeDef *hdma) |
| { |
| IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
| |
| hirda->TxXferCount = 0x00U; |
| |
| /* Restore hirda->gState to Ready */ |
| hirda->gState = HAL_IRDA_STATE_READY; |
| |
| /* Call user Abort complete callback */ |
| HAL_IRDA_AbortTransmitCpltCallback(hirda); |
| } |
| |
| /** |
| * @brief DMA IRDA Rx communication abort callback, when initiated by user by a call to |
| * HAL_IRDA_AbortReceive_IT API (Abort only Rx transfer) |
| * (This callback is executed at end of DMA Rx Abort procedure following user abort request, |
| * and leads to user Rx Abort Complete callback execution). |
| * @param hdma DMA handle. |
| * @retval None |
| */ |
| static void IRDA_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma) |
| { |
| IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
| |
| hirda->RxXferCount = 0x00U; |
| |
| /* Restore hirda->RxState to Ready */ |
| hirda->RxState = HAL_IRDA_STATE_READY; |
| |
| /* Call user Abort complete callback */ |
| HAL_IRDA_AbortReceiveCpltCallback(hirda); |
| } |
| |
| /** |
| * @brief Tx Transfer complete callbacks. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval None |
| */ |
| __weak void HAL_IRDA_TxCpltCallback(IRDA_HandleTypeDef *hirda) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hirda); |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_IRDA_TxCpltCallback could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief Tx Half Transfer completed callbacks. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified USART module. |
| * @retval None |
| */ |
| __weak void HAL_IRDA_TxHalfCpltCallback(IRDA_HandleTypeDef *hirda) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hirda); |
| /* NOTE: This function Should not be modified, when the callback is needed, |
| the HAL_IRDA_TxHalfCpltCallback could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief Rx Transfer complete callbacks. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval None |
| */ |
| __weak void HAL_IRDA_RxCpltCallback(IRDA_HandleTypeDef *hirda) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hirda); |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_IRDA_RxCpltCallback could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief Rx Half Transfer complete callbacks. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval None |
| */ |
| __weak void HAL_IRDA_RxHalfCpltCallback(IRDA_HandleTypeDef *hirda) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hirda); |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_IRDA_RxHalfCpltCallback could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief IRDA error callbacks. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval None |
| */ |
| __weak void HAL_IRDA_ErrorCallback(IRDA_HandleTypeDef *hirda) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hirda); |
| /* NOTE : This function Should not be modified, when the callback is needed, |
| the HAL_IRDA_ErrorCallback could be implemented in the user file |
| */ |
| } |
| |
| /** |
| * @brief IRDA Abort Complete callback. |
| * @param hirda IRDA handle. |
| * @retval None |
| */ |
| __weak void HAL_IRDA_AbortCpltCallback(IRDA_HandleTypeDef *hirda) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hirda); |
| |
| /* NOTE : This function should not be modified, when the callback is needed, |
| the HAL_IRDA_AbortCpltCallback can be implemented in the user file. |
| */ |
| } |
| |
| /** |
| * @brief IRDA Abort Transmit Complete callback. |
| * @param hirda IRDA handle. |
| * @retval None |
| */ |
| __weak void HAL_IRDA_AbortTransmitCpltCallback(IRDA_HandleTypeDef *hirda) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hirda); |
| |
| /* NOTE : This function should not be modified, when the callback is needed, |
| the HAL_IRDA_AbortTransmitCpltCallback can be implemented in the user file. |
| */ |
| } |
| |
| /** |
| * @brief IRDA Abort ReceiveComplete callback. |
| * @param hirda IRDA handle. |
| * @retval None |
| */ |
| __weak void HAL_IRDA_AbortReceiveCpltCallback(IRDA_HandleTypeDef *hirda) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hirda); |
| |
| /* NOTE : This function should not be modified, when the callback is needed, |
| the HAL_IRDA_AbortReceiveCpltCallback can be implemented in the user file. |
| */ |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @defgroup IRDA_Exported_Functions_Group3 Peripheral State and Errors functions |
| * @brief IRDA State and Errors functions |
| * |
| @verbatim |
| ============================================================================== |
| ##### Peripheral State and Errors functions ##### |
| ============================================================================== |
| [..] |
| This subsection provides a set of functions allowing to return the State of IrDA |
| communication process and also return Peripheral Errors occurred during communication process |
| (+) HAL_IRDA_GetState() API can be helpful to check in run-time the state of the IrDA peripheral. |
| (+) HAL_IRDA_GetError() check in run-time errors that could be occurred during communication. |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Returns the IRDA state. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval HAL state |
| */ |
| HAL_IRDA_StateTypeDef HAL_IRDA_GetState(IRDA_HandleTypeDef *hirda) |
| { |
| uint32_t temp1 = 0x00U, temp2 = 0x00U; |
| temp1 = hirda->gState; |
| temp2 = hirda->RxState; |
| |
| return (HAL_IRDA_StateTypeDef)(temp1 | temp2); |
| } |
| |
| /** |
| * @brief Return the IARDA error code |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA. |
| * @retval IRDA Error Code |
| */ |
| uint32_t HAL_IRDA_GetError(IRDA_HandleTypeDef *hirda) |
| { |
| return hirda->ErrorCode; |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @brief DMA IRDA transmit process complete callback. |
| * @param hdma DMA handle |
| * @retval None |
| */ |
| static void IRDA_DMATransmitCplt(DMA_HandleTypeDef *hdma) |
| { |
| IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
| /* DMA Normal mode */ |
| if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0U) |
| { |
| hirda->TxXferCount = 0; |
| |
| /* Disable the DMA transfer for transmit request by setting the DMAT bit |
| in the IRDA CR3 register */ |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT); |
| |
| /* Enable the IRDA Transmit Complete Interrupt */ |
| SET_BIT(hirda->Instance->CR1, USART_CR1_TCIE); |
| } |
| /* DMA Circular mode */ |
| else |
| { |
| HAL_IRDA_TxCpltCallback(hirda); |
| } |
| } |
| |
| /** |
| * @brief DMA IRDA receive process half complete callback |
| * @param hdma pointer to a DMA_HandleTypeDef structure that contains |
| * the configuration information for the specified DMA module. |
| * @retval None |
| */ |
| static void IRDA_DMATransmitHalfCplt(DMA_HandleTypeDef *hdma) |
| { |
| IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
| |
| HAL_IRDA_TxHalfCpltCallback(hirda); |
| } |
| |
| /** |
| * @brief DMA IRDA receive process complete callback. |
| * @param hdma DMA handle |
| * @retval None |
| */ |
| static void IRDA_DMAReceiveCplt(DMA_HandleTypeDef *hdma) |
| { |
| IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
| /* DMA Normal mode */ |
| if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0U) |
| { |
| hirda->RxXferCount = 0; |
| |
| /* Disable PE and ERR (Frame error, noise error, overrun error) interrupts */ |
| CLEAR_BIT(hirda->Instance->CR1, USART_CR1_PEIE); |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE); |
| |
| /* Disable the DMA transfer for the receiver request by setting the DMAR bit |
| in the IRDA CR3 register */ |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR); |
| |
| /* At end of Rx process, restore hirda->RxState to Ready */ |
| hirda->RxState = HAL_IRDA_STATE_READY; |
| } |
| |
| HAL_IRDA_RxCpltCallback(hirda); |
| } |
| |
| /** |
| * @brief DMA IRDA receive process half complete callback |
| * @param hdma pointer to a DMA_HandleTypeDef structure that contains |
| * the configuration information for the specified DMA module. |
| * @retval None |
| */ |
| static void IRDA_DMAReceiveHalfCplt(DMA_HandleTypeDef *hdma) |
| { |
| IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
| HAL_IRDA_RxHalfCpltCallback(hirda); |
| } |
| |
| /** |
| * @brief DMA IRDA communication error callback. |
| * @param hdma DMA handle |
| * @retval None |
| */ |
| static void IRDA_DMAError(DMA_HandleTypeDef *hdma) |
| { |
| uint32_t dmarequest = 0x00U; |
| IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; |
| |
| /* Stop IRDA DMA Tx request if ongoing */ |
| dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT); |
| if((hirda->gState == HAL_IRDA_STATE_BUSY_TX) && dmarequest) |
| { |
| hirda->TxXferCount = 0; |
| IRDA_EndTxTransfer(hirda); |
| } |
| |
| /* Stop IRDA DMA Rx request if ongoing */ |
| dmarequest = HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR); |
| if((hirda->RxState == HAL_IRDA_STATE_BUSY_RX) && dmarequest) |
| { |
| hirda->RxXferCount = 0; |
| IRDA_EndRxTransfer(hirda); |
| } |
| |
| hirda->ErrorCode |= HAL_IRDA_ERROR_DMA; |
| |
| HAL_IRDA_ErrorCallback(hirda); |
| } |
| |
| /** |
| * @brief This function handles IRDA Communication Timeout. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @param Flag specifies the IRDA flag to check. |
| * @param Status The new Flag status (SET or RESET). |
| * @param Tickstart Tick start value |
| * @param Timeout Timeout duration |
| * @retval HAL status |
| */ |
| static HAL_StatusTypeDef IRDA_WaitOnFlagUntilTimeout(IRDA_HandleTypeDef *hirda, uint32_t Flag, FlagStatus Status, uint32_t Tickstart, uint32_t Timeout) |
| { |
| /* Wait until flag is set */ |
| while((__HAL_IRDA_GET_FLAG(hirda, Flag) ? SET : RESET) == Status) |
| { |
| /* Check for the Timeout */ |
| if(Timeout != HAL_MAX_DELAY) |
| { |
| if((Timeout == 0U)||((HAL_GetTick() - Tickstart ) > Timeout)) |
| { |
| /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ |
| CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE)); |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE); |
| |
| hirda->gState = HAL_IRDA_STATE_READY; |
| hirda->RxState = HAL_IRDA_STATE_READY; |
| |
| /* Process Unlocked */ |
| __HAL_UNLOCK(hirda); |
| |
| return HAL_TIMEOUT; |
| } |
| } |
| } |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Send an amount of data in non blocking mode. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval HAL status |
| */ |
| static HAL_StatusTypeDef IRDA_Transmit_IT(IRDA_HandleTypeDef *hirda) |
| { |
| uint16_t* tmp; |
| |
| /* Check that a Tx process is ongoing */ |
| if(hirda->gState == HAL_IRDA_STATE_BUSY_TX) |
| { |
| if(hirda->Init.WordLength == IRDA_WORDLENGTH_9B) |
| { |
| tmp = (uint16_t*) hirda->pTxBuffPtr; |
| hirda->Instance->DR = (uint16_t)(*tmp & (uint16_t)0x01FF); |
| if(hirda->Init.Parity == IRDA_PARITY_NONE) |
| { |
| hirda->pTxBuffPtr += 2; |
| } |
| else |
| { |
| hirda->pTxBuffPtr += 1; |
| } |
| } |
| else |
| { |
| hirda->Instance->DR = (uint8_t)(*hirda->pTxBuffPtr++ & (uint8_t)0x00FF); |
| } |
| |
| if(--hirda->TxXferCount == 0) |
| { |
| /* Disable the IRDA Transmit Data Register Empty Interrupt */ |
| CLEAR_BIT(hirda->Instance->CR1, USART_CR1_TXEIE); |
| |
| /* Enable the IRDA Transmit Complete Interrupt */ |
| SET_BIT(hirda->Instance->CR1, USART_CR1_TCIE); |
| } |
| |
| return HAL_OK; |
| } |
| else |
| { |
| return HAL_BUSY; |
| } |
| } |
| |
| /** |
| * @brief Wraps up transmission in non blocking mode. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval HAL status |
| */ |
| static HAL_StatusTypeDef IRDA_EndTransmit_IT(IRDA_HandleTypeDef *hirda) |
| { |
| /* Disable the IRDA Transmit Complete Interrupt */ |
| CLEAR_BIT(hirda->Instance->CR1, USART_CR1_TCIE); |
| |
| /* Disable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */ |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE); |
| |
| /* Tx process is ended, restore hirda->gState to Ready */ |
| hirda->gState = HAL_IRDA_STATE_READY; |
| |
| HAL_IRDA_TxCpltCallback(hirda); |
| |
| return HAL_OK; |
| } |
| |
| /** |
| * @brief Receives an amount of data in non blocking mode. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval HAL status |
| */ |
| static HAL_StatusTypeDef IRDA_Receive_IT(IRDA_HandleTypeDef *hirda) |
| { |
| uint16_t* tmp; |
| uint16_t uhdata; |
| |
| /* Check that a Rx process is ongoing */ |
| if(hirda->RxState == HAL_IRDA_STATE_BUSY_RX) |
| { |
| uhdata = (uint16_t) READ_REG(hirda->Instance->DR); |
| if(hirda->Init.WordLength == IRDA_WORDLENGTH_9B) |
| { |
| tmp = (uint16_t*) hirda->pRxBuffPtr; |
| if(hirda->Init.Parity == IRDA_PARITY_NONE) |
| { |
| *tmp = (uint16_t)(uhdata & (uint16_t)0x01FF); |
| hirda->pRxBuffPtr += 2; |
| } |
| else |
| { |
| *tmp = (uint16_t)(uhdata & (uint16_t)0x00FF); |
| hirda->pRxBuffPtr += 1; |
| } |
| } |
| else |
| { |
| if(hirda->Init.Parity == IRDA_PARITY_NONE) |
| { |
| *hirda->pRxBuffPtr++ = (uint8_t)(uhdata & (uint8_t)0x00FF); |
| } |
| else |
| { |
| *hirda->pRxBuffPtr++ = (uint8_t)(uhdata & (uint8_t)0x007F); |
| } |
| } |
| |
| if(--hirda->RxXferCount == 0) |
| { |
| /* Disable the IRDA Data Register not empty Interrupt */ |
| CLEAR_BIT(hirda->Instance->CR1, USART_CR1_RXNEIE); |
| |
| /* Disable the IRDA Parity Error Interrupt */ |
| CLEAR_BIT(hirda->Instance->CR1, USART_CR1_PEIE); |
| |
| /* Disable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */ |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE); |
| |
| /* Rx process is completed, restore hirda->RxState to Ready */ |
| hirda->RxState = HAL_IRDA_STATE_READY; |
| |
| HAL_IRDA_RxCpltCallback(hirda); |
| |
| return HAL_OK; |
| } |
| return HAL_OK; |
| } |
| else |
| { |
| return HAL_BUSY; |
| } |
| } |
| |
| /** |
| * @brief Configures the IRDA peripheral. |
| * @param hirda pointer to a IRDA_HandleTypeDef structure that contains |
| * the configuration information for the specified IRDA module. |
| * @retval None |
| */ |
| static void IRDA_SetConfig(IRDA_HandleTypeDef *hirda) |
| { |
| /* Check the parameters */ |
| assert_param(IS_IRDA_INSTANCE(hirda->Instance)); |
| assert_param(IS_IRDA_BAUDRATE(hirda->Init.BaudRate)); |
| assert_param(IS_IRDA_WORD_LENGTH(hirda->Init.WordLength)); |
| assert_param(IS_IRDA_PARITY(hirda->Init.Parity)); |
| assert_param(IS_IRDA_MODE(hirda->Init.Mode)); |
| |
| /*-------------------------- IRDA CR2 Configuration ------------------------*/ |
| /* Clear STOP[13:12] bits */ |
| CLEAR_BIT(hirda->Instance->CR2, USART_CR2_STOP); |
| |
| /*-------------------------- USART CR1 Configuration -----------------------*/ |
| /* Clear M, PCE, PS, TE and RE bits */ |
| CLEAR_BIT(hirda->Instance->CR1, USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | USART_CR1_RE); |
| |
| /* Configure the USART Word Length, Parity and mode: |
| Set the M bits according to hirda->Init.WordLength value |
| Set PCE and PS bits according to hirda->Init.Parity value |
| Set TE and RE bits according to hirda->Init.Mode value */ |
| /* Write to USART CR1 */ |
| SET_BIT(hirda->Instance->CR1, (uint32_t)hirda->Init.WordLength | hirda->Init.Parity | hirda->Init.Mode); |
| |
| /*-------------------------- USART CR3 Configuration -----------------------*/ |
| /* Clear CTSE and RTSE bits */ |
| CLEAR_BIT(hirda->Instance->CR3, USART_CR3_RTSE | USART_CR3_CTSE); |
| |
| /*-------------------------- USART BRR Configuration -----------------------*/ |
| if((hirda->Instance == USART1) || (hirda->Instance == USART6)) |
| { |
| SET_BIT(hirda->Instance->BRR, IRDA_BRR(HAL_RCC_GetPCLK2Freq(), hirda->Init.BaudRate)); |
| } |
| else |
| { |
| SET_BIT(hirda->Instance->BRR, IRDA_BRR(HAL_RCC_GetPCLK1Freq(), hirda->Init.BaudRate)); |
| } |
| } |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* HAL_IRDA_MODULE_ENABLED */ |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |