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Diffstat (limited to 'c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_irda.c')
| -rw-r--r-- | c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_irda.c | 1495 |
1 files changed, 1495 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_irda.c b/c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_irda.c new file mode 100644 index 0000000000..7b2283d7e2 --- /dev/null +++ b/c/src/lib/libbsp/arm/stm32f7x/hal/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_irda.c @@ -0,0 +1,1495 @@ +/** + ****************************************************************************** + * @file stm32f7xx_hal_irda.c + * @author MCD Application Team + * @version V1.0.1 + * @date 25-June-2015 + * @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) 2015 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 "stm32f7xx_hal.h" + +/** @addtogroup STM32F7xx_HAL_Driver + * @{ + */ + +/** @defgroup IRDA IRDA + * @brief HAL IRDA module driver + * @{ + */ +#ifdef HAL_IRDA_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/** @addtogroup IRDA_Private_Constants + * @{ + */ +#define TEACK_REACK_TIMEOUT 1000 +#define HAL_IRDA_TXDMA_TIMEOUTVALUE 22000 +#define IRDA_CR1_FIELDS ((uint32_t)(USART_CR1_M | USART_CR1_PCE \ + | USART_CR1_PS | USART_CR1_TE | USART_CR1_RE)) +/** + * @} + */ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/** @addtogroup IRDA_Private_Functions + * @{ + */ +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_SetConfig (IRDA_HandleTypeDef *hirda); +static HAL_StatusTypeDef IRDA_CheckIdleState(IRDA_HandleTypeDef *hirda); +static HAL_StatusTypeDef IRDA_WaitOnFlagUntilTimeout(IRDA_HandleTypeDef *hirda, uint32_t Flag, FlagStatus Status, uint32_t Timeout); +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); +/** + * @} + */ +/* 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 USART/UART associated to the IRDA handle */ + assert_param(IS_IRDA_INSTANCE(hirda->Instance)); + + if(hirda->State == HAL_IRDA_STATE_RESET) + { + /* Allocate lock resource and initialize it */ + hirda->Lock = HAL_UNLOCKED; + /* Init the low level hardware : GPIO, CLOCK, CORTEX */ + HAL_IRDA_MspInit(hirda); + } + + hirda->State = HAL_IRDA_STATE_BUSY; + + /* Disable the Peripheral to update the configuration registers */ + __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.*/ + hirda->Instance->CR2 &= ~(USART_CR2_LINEN | USART_CR2_CLKEN | USART_CR2_STOP); + hirda->Instance->CR3 &= ~(USART_CR3_SCEN | USART_CR3_HDSEL); + + /* set the UART/USART in IRDA mode */ + hirda->Instance->CR3 |= USART_CR3_IREN; + + /* Enable the Peripheral */ + __HAL_IRDA_ENABLE(hirda); + + /* TEACK and/or REACK to check before moving hirda->State to Ready */ + return (IRDA_CheckIdleState(hirda)); +} + +/** + * @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->State = HAL_IRDA_STATE_BUSY; + + /* DeInit the low level hardware */ + HAL_IRDA_MspDeInit(hirda); + /* Disable the Peripheral */ + __HAL_IRDA_DISABLE(hirda); + + hirda->ErrorCode = HAL_IRDA_ERROR_NONE; + hirda->State = 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) +{ + /* 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) +{ + /* 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 API's 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 API's with Interrupt are : + (++) HAL_IRDA_Transmit_IT() + (++) HAL_IRDA_Receive_IT() + (++) HAL_IRDA_IRQHandler() + (++) IRDA_Transmit_IT() + (++) IRDA_Receive_IT() + + (#) Non-Blocking mode functions with DMA are : + (++) HAL_IRDA_Transmit_DMA() + (++) HAL_IRDA_Receive_DMA() + + (#) A set of Transfer Complete Callbacks are provided in No_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; + + if ((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_RX)) + { + if((pData == NULL) || (Size == 0)) + { + return HAL_ERROR; + } + + /* Process Locked */ + __HAL_LOCK(hirda); + hirda->ErrorCode = HAL_IRDA_ERROR_NONE; + + if(hirda->State == HAL_IRDA_STATE_BUSY_RX) + { + hirda->State = HAL_IRDA_STATE_BUSY_TX_RX; + } + else + { + hirda->State = HAL_IRDA_STATE_BUSY_TX; + } + + hirda->TxXferSize = Size; + hirda->TxXferCount = Size; + while(hirda->TxXferCount > 0) + { + hirda->TxXferCount--; + + if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TXE, RESET, Timeout) != HAL_OK) + { + return HAL_TIMEOUT; + } + if ((hirda->Init.WordLength == IRDA_WORDLENGTH_9B) && (hirda->Init.Parity == IRDA_PARITY_NONE)) + { + tmp = (uint16_t*) pData; + hirda->Instance->TDR = (*tmp & (uint16_t)0x01FF); + pData +=2; + } + else + { + hirda->Instance->TDR = (*pData++ & (uint8_t)0xFF); + } + } + + if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TC, RESET, Timeout) != HAL_OK) + { + return HAL_TIMEOUT; + } + + if(hirda->State == HAL_IRDA_STATE_BUSY_TX_RX) + { + hirda->State = HAL_IRDA_STATE_BUSY_RX; + } + else + { + hirda->State = 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; + uint16_t uhMask; + + if ((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_TX)) + { + if((pData == NULL) || (Size == 0)) + { + return HAL_ERROR; + } + + /* Process Locked */ + __HAL_LOCK(hirda); + hirda->ErrorCode = HAL_IRDA_ERROR_NONE; + + if(hirda->State == HAL_IRDA_STATE_BUSY_TX) + { + hirda->State = HAL_IRDA_STATE_BUSY_TX_RX; + } + else + { + hirda->State = HAL_IRDA_STATE_BUSY_RX; + } + + hirda->RxXferSize = Size; + hirda->RxXferCount = Size; + + /* Computation of the mask to apply to the RDR register + of the UART associated to the IRDA */ + IRDA_MASK_COMPUTATION(hirda); + uhMask = hirda->Mask; + + /* Check data remaining to be received */ + while(hirda->RxXferCount > 0) + { + hirda->RxXferCount--; + + if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_RXNE, RESET, Timeout) != HAL_OK) + { + return HAL_TIMEOUT; + } + if ((hirda->Init.WordLength == IRDA_WORDLENGTH_9B) && (hirda->Init.Parity == IRDA_PARITY_NONE)) + { + tmp = (uint16_t*) pData ; + *tmp = (uint16_t)(hirda->Instance->RDR & uhMask); + pData +=2; + } + else + { + *pData++ = (uint8_t)(hirda->Instance->RDR & (uint8_t)uhMask); + } + } + + if(hirda->State == HAL_IRDA_STATE_BUSY_TX_RX) + { + hirda->State = HAL_IRDA_STATE_BUSY_TX; + } + else + { + hirda->State = 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) +{ + if ((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_RX)) + { + 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; + if(hirda->State == HAL_IRDA_STATE_BUSY_RX) + { + hirda->State = HAL_IRDA_STATE_BUSY_TX_RX; + } + else + { + hirda->State = HAL_IRDA_STATE_BUSY_TX; + } + + /* Enable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */ + __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_ERR); + + /* Process Unlocked */ + __HAL_UNLOCK(hirda); + + /* Enable the IRDA Transmit Complete Interrupt */ + __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_TC); + + 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) +{ + if ((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_TX)) + { + if((pData == NULL) || (Size == 0)) + { + return HAL_ERROR; + } + + /* Process Locked */ + __HAL_LOCK(hirda); + + hirda->pRxBuffPtr = pData; + hirda->RxXferSize = Size; + hirda->RxXferCount = Size; + + /* Computation of the mask to apply to the RDR register + of the UART associated to the IRDA */ + IRDA_MASK_COMPUTATION(hirda); + + hirda->ErrorCode = HAL_IRDA_ERROR_NONE; + if(hirda->State == HAL_IRDA_STATE_BUSY_TX) + { + hirda->State = HAL_IRDA_STATE_BUSY_TX_RX; + } + else + { + hirda->State = HAL_IRDA_STATE_BUSY_RX; + } + + /* Enable the IRDA Parity Error Interrupt */ + __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_PE); + + /* Enable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */ + __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_ERR); + + /* Process Unlocked */ + __HAL_UNLOCK(hirda); + + /* Enable the IRDA Data Register not empty Interrupt */ + __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_RXNE); + + 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; + + if ((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_RX)) + { + 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; + + if(hirda->State == HAL_IRDA_STATE_BUSY_RX) + { + hirda->State = HAL_IRDA_STATE_BUSY_TX_RX; + } + else + { + hirda->State = 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; + + /* Enable the IRDA transmit DMA channel */ + tmp = (uint32_t*)&pData; + HAL_DMA_Start_IT(hirda->hdmatx, *(uint32_t*)tmp, (uint32_t)&hirda->Instance->TDR, Size); + + /* Clear the TC flag in the SR register by writing 0 to it */ + __HAL_IRDA_CLEAR_IT(hirda, IRDA_FLAG_TC); + + /* Enable the DMA transfer for transmit request by setting the DMAT bit + in the IRDA CR3 register */ + hirda->Instance->CR3 |= USART_CR3_DMAT; + + /* Process Unlocked */ + __HAL_UNLOCK(hirda); + + 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; + + if ((hirda->State == HAL_IRDA_STATE_READY) || (hirda->State == HAL_IRDA_STATE_BUSY_TX)) + { + 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; + if(hirda->State == HAL_IRDA_STATE_BUSY_TX) + { + hirda->State = HAL_IRDA_STATE_BUSY_TX_RX; + } + else + { + hirda->State = 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; + + /* Enable the DMA channel */ + tmp = (uint32_t*)&pData; + HAL_DMA_Start_IT(hirda->hdmarx, (uint32_t)&hirda->Instance->RDR, *(uint32_t*)tmp, Size); + + /* Enable the DMA transfer for the receiver request by setting the DMAR bit + in the IRDA CR3 register */ + hirda->Instance->CR3 |= USART_CR3_DMAR; + + /* Process Unlocked */ + __HAL_UNLOCK(hirda); + + 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) +{ + /* Process Locked */ + __HAL_LOCK(hirda); + + if(hirda->State == HAL_IRDA_STATE_BUSY_TX) + { + /* Disable the UART DMA Tx request */ + hirda->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT); + } + else if(hirda->State == HAL_IRDA_STATE_BUSY_RX) + { + /* Disable the UART DMA Rx request */ + hirda->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAR); + } + else if (hirda->State == HAL_IRDA_STATE_BUSY_TX_RX) + { + /* Disable the UART DMA Tx & Rx requests */ + hirda->Instance->CR3 &= (uint32_t)(~USART_CR3_DMAT); + hirda->Instance->CR3 &= (uint32_t)(~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 UART module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_IRDA_DMAResume(IRDA_HandleTypeDef *hirda) +{ + /* Process Locked */ + __HAL_LOCK(hirda); + + if(hirda->State == HAL_IRDA_STATE_BUSY_TX) + { + /* Enable the UART DMA Tx request */ + hirda->Instance->CR3 |= USART_CR3_DMAT; + } + else if(hirda->State == HAL_IRDA_STATE_BUSY_RX) + { + /* Clear the Overrun flag before resuming the Rx transfer*/ + __HAL_IRDA_CLEAR_IT(hirda, IRDA_CLEAR_OREF); + + /* Enable the UART DMA Rx request */ + hirda->Instance->CR3 |= USART_CR3_DMAR; + } + else if(hirda->State == HAL_IRDA_STATE_BUSY_TX_RX) + { + /* Clear the Overrun flag before resuming the Rx transfer*/ + __HAL_IRDA_CLEAR_IT(hirda, IRDA_CLEAR_OREF); + + /* Enable the UART DMA Tx & Rx request */ + hirda->Instance->CR3 |= USART_CR3_DMAT; + 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 UART module. + * @retval HAL status + */ +HAL_StatusTypeDef HAL_IRDA_DMAStop(IRDA_HandleTypeDef *hirda) +{ + /* 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() / + HAL_IRDA_TxHalfCpltCallback / HAL_IRDA_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 UART Tx/Rx DMA requests */ + hirda->Instance->CR3 &= ~USART_CR3_DMAT; + hirda->Instance->CR3 &= ~USART_CR3_DMAR; + + /* Abort the UART DMA tx channel */ + if(hirda->hdmatx != NULL) + { + HAL_DMA_Abort(hirda->hdmatx); + } + /* Abort the UART DMA rx channel */ + if(hirda->hdmarx != NULL) + { + HAL_DMA_Abort(hirda->hdmarx); + } + + hirda->State = HAL_IRDA_STATE_READY; + + 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) +{ + /* IRDA parity error interrupt occurred -------------------------------------*/ + if((__HAL_IRDA_GET_IT(hirda, IRDA_IT_PE) != RESET) && (__HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_PE) != RESET)) + { + __HAL_IRDA_CLEAR_IT(hirda, IRDA_CLEAR_PEF); + + hirda->ErrorCode |= HAL_IRDA_ERROR_PE; + /* Set the IRDA state ready to be able to start again the process */ + hirda->State = HAL_IRDA_STATE_READY; + } + + /* IRDA frame error interrupt occurred --------------------------------------*/ + if((__HAL_IRDA_GET_IT(hirda, IRDA_IT_FE) != RESET) && (__HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_ERR) != RESET)) + { + __HAL_IRDA_CLEAR_IT(hirda, IRDA_CLEAR_FEF); + + hirda->ErrorCode |= HAL_IRDA_ERROR_FE; + /* Set the IRDA state ready to be able to start again the process */ + hirda->State = HAL_IRDA_STATE_READY; + } + + /* IRDA noise error interrupt occurred --------------------------------------*/ + if((__HAL_IRDA_GET_IT(hirda, IRDA_IT_NE) != RESET) && (__HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_ERR) != RESET)) + { + __HAL_IRDA_CLEAR_IT(hirda, IRDA_CLEAR_NEF); + + hirda->ErrorCode |= HAL_IRDA_ERROR_NE; + /* Set the IRDA state ready to be able to start again the process */ + hirda->State = HAL_IRDA_STATE_READY; + } + + /* IRDA Over-Run interrupt occurred -----------------------------------------*/ + if((__HAL_IRDA_GET_IT(hirda, IRDA_IT_ORE) != RESET) && (__HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_ERR) != RESET)) + { + __HAL_IRDA_CLEAR_IT(hirda, IRDA_CLEAR_OREF); + + hirda->ErrorCode |= HAL_IRDA_ERROR_ORE; + /* Set the IRDA state ready to be able to start again the process */ + hirda->State = HAL_IRDA_STATE_READY; + } + + /* Call IRDA Error Call back function if need be --------------------------*/ + if(hirda->ErrorCode != HAL_IRDA_ERROR_NONE) + { + HAL_IRDA_ErrorCallback(hirda); + } + + /* IRDA in mode Receiver ---------------------------------------------------*/ + if((__HAL_IRDA_GET_IT(hirda, IRDA_IT_RXNE) != RESET) && (__HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_RXNE) != RESET)) + { + IRDA_Receive_IT(hirda); + /* Clear RXNE interrupt flag */ + __HAL_IRDA_SEND_REQ(hirda, IRDA_RXDATA_FLUSH_REQUEST); + } + + /* IRDA in mode Transmitter ------------------------------------------------*/ + if((__HAL_IRDA_GET_IT(hirda, IRDA_IT_TXE) != RESET) &&(__HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_TXE) != RESET)) + { + IRDA_Transmit_IT(hirda); + } + + /* IRDA in mode Transmitter (transmission end) -----------------------------*/ + if((__HAL_IRDA_GET_IT(hirda, IRDA_IT_TC) != RESET) &&(__HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_TC) != RESET)) + { + IRDA_EndTransmit_IT(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_TxHalfCpltCallback(IRDA_HandleTypeDef *hirda) +{ + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_IRDA_TxHalfCpltCallback can 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_TxCpltCallback(IRDA_HandleTypeDef *hirda) +{ + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_IRDA_TxCpltCallback can 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_RxHalfCpltCallback(IRDA_HandleTypeDef *hirda) +{ + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_IRDA_RxHalfCpltCallback can 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_RxCpltCallback(IRDA_HandleTypeDef *hirda) +{ + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_IRDA_RxCpltCallback can 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) +{ + /* NOTE : This function should not be modified, when the callback is needed, + the HAL_IRDA_ErrorCallback can be implemented in the user file + */ +} + +/** + * @} + */ + +/** @defgroup IRDA_Exported_Functions_Group3 Peripheral Control functions + * @brief IRDA control functions + * +@verbatim + =============================================================================== + ##### Peripheral Control functions ##### + =============================================================================== + [..] + This subsection provides a set of functions allowing to control the IRDA. + (+) HAL_IRDA_GetState() API can be helpful to check in run-time the state of the IRDA peripheral. + (+) IRDA_SetConfig() API is used to configure the IRDA communications parameters. +@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) +{ + return hirda->State; +} + +/** + * @brief Return the IRDA 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 Configure the IRDA peripheral + * @param hirda: irda handle + * @retval None + */ +static void IRDA_SetConfig(IRDA_HandleTypeDef *hirda) +{ + uint32_t tmpreg = 0x00000000; + uint32_t clocksource = 0x00000000; + + /* Check the communication parameters */ + 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_TX_RX_MODE(hirda->Init.Mode)); + assert_param(IS_IRDA_PRESCALER(hirda->Init.Prescaler)); + assert_param(IS_IRDA_POWERMODE(hirda->Init.PowerMode)); + /*-------------------------- USART CR1 Configuration -----------------------*/ + /* Configure the IRDA Word Length, Parity and transfer 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 */ + tmpreg = (uint32_t)hirda->Init.WordLength | hirda->Init.Parity | hirda->Init.Mode ; + + MODIFY_REG(hirda->Instance->CR1, IRDA_CR1_FIELDS, tmpreg); + + /*-------------------------- USART CR3 Configuration -----------------------*/ + MODIFY_REG(hirda->Instance->CR3, USART_CR3_IRLP, hirda->Init.PowerMode); + + /*-------------------------- USART GTPR Configuration ----------------------*/ + MODIFY_REG(hirda->Instance->GTPR, (uint32_t)USART_GTPR_PSC, hirda->Init.Prescaler); + + /*-------------------------- USART BRR Configuration -----------------------*/ + IRDA_GETCLOCKSOURCE(hirda, clocksource); + switch (clocksource) + { + case IRDA_CLOCKSOURCE_PCLK1: + hirda->Instance->BRR = (uint16_t)(HAL_RCC_GetPCLK1Freq() / hirda->Init.BaudRate); + break; + case IRDA_CLOCKSOURCE_PCLK2: + hirda->Instance->BRR = (uint16_t)(HAL_RCC_GetPCLK2Freq() / hirda->Init.BaudRate); + break; + case IRDA_CLOCKSOURCE_HSI: + hirda->Instance->BRR = (uint16_t)(HSI_VALUE / hirda->Init.BaudRate); + break; + case IRDA_CLOCKSOURCE_SYSCLK: + hirda->Instance->BRR = (uint16_t)(HAL_RCC_GetSysClockFreq() / hirda->Init.BaudRate); + break; + case IRDA_CLOCKSOURCE_LSE: + hirda->Instance->BRR = (uint16_t)(LSE_VALUE / hirda->Init.BaudRate); + break; + default: + break; + } +} + +/** + * @brief Check the IRDA Idle State + * @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_CheckIdleState(IRDA_HandleTypeDef *hirda) +{ + /* Initialize the IRDA ErrorCode */ + hirda->ErrorCode = HAL_IRDA_ERROR_NONE; + + /* Check if the Transmitter is enabled */ + if((hirda->Instance->CR1 & USART_CR1_TE) == USART_CR1_TE) + { + /* Wait until TEACK flag is set */ + if(IRDA_WaitOnFlagUntilTimeout(hirda, USART_ISR_TEACK, RESET, TEACK_REACK_TIMEOUT) != HAL_OK) + { + hirda->State= HAL_IRDA_STATE_TIMEOUT; + return HAL_TIMEOUT; + } + } + /* Check if the Receiver is enabled */ + if((hirda->Instance->CR1 & USART_CR1_RE) == USART_CR1_RE) + { + if(IRDA_WaitOnFlagUntilTimeout(hirda, USART_ISR_REACK, RESET, TEACK_REACK_TIMEOUT) != HAL_OK) + { + hirda->State= HAL_IRDA_STATE_TIMEOUT; + return HAL_TIMEOUT; + } + } + /* Process Unlocked */ + __HAL_UNLOCK(hirda); + + /* Initialize the IRDA state*/ + hirda->State= HAL_IRDA_STATE_READY; + + return HAL_OK; +} + +/** + * @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 Timeout: Timeout duration + * @retval HAL status + */ +static HAL_StatusTypeDef IRDA_WaitOnFlagUntilTimeout(IRDA_HandleTypeDef *hirda, uint32_t Flag, FlagStatus Status, uint32_t Timeout) +{ + uint32_t tickstart = 0x00; + tickstart = HAL_GetTick(); + + /* Wait until flag is set */ + if(Status == RESET) + { + while(__HAL_IRDA_GET_FLAG(hirda, Flag) == RESET) + { + /* Check for the Timeout */ + if(Timeout != HAL_MAX_DELAY) + { + if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) + { + /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ + __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_TXE); + __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_RXNE); + __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_PE); + __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_ERR); + + hirda->State= HAL_IRDA_STATE_READY; + + /* Process Unlocked */ + __HAL_UNLOCK(hirda); + + return HAL_TIMEOUT; + } + } + } + } + else + { + while(__HAL_IRDA_GET_FLAG(hirda, Flag) != RESET) + { + /* Check for the Timeout */ + if(Timeout != HAL_MAX_DELAY) + { + if((Timeout == 0)||((HAL_GetTick() - tickstart ) > Timeout)) + { + /* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ + __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_TXE); + __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_RXNE); + __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_PE); + __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_ERR); + + hirda->State= 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; + + if((hirda->State == HAL_IRDA_STATE_BUSY_TX) || (hirda->State == HAL_IRDA_STATE_BUSY_TX_RX)) + { + if(hirda->TxXferCount == 0) + { + /* Disable the IRDA Transmit Complete Interrupt */ + __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_TXE); + + if(hirda->State == HAL_IRDA_STATE_BUSY_TX_RX) + { + hirda->State = HAL_IRDA_STATE_BUSY_RX; + } + else + { + /* Disable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */ + __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_ERR); + + hirda->State = HAL_IRDA_STATE_READY; + } + + HAL_IRDA_TxCpltCallback(hirda); + + return HAL_OK; + } + else + { + if ((hirda->Init.WordLength == IRDA_WORDLENGTH_9B) && (hirda->Init.Parity == IRDA_PARITY_NONE)) + { + tmp = (uint16_t*) hirda->pTxBuffPtr; + hirda->Instance->TDR = (*tmp & (uint16_t)0x01FF); + hirda->pTxBuffPtr += 2; + } + else + { + hirda->Instance->TDR = (uint8_t)(*hirda->pTxBuffPtr++ & (uint8_t)0xFF); + } + hirda->TxXferCount--; + 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 */ + __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_TC); + + /* Check if a receive process is ongoing or not */ + if(hirda->State == HAL_IRDA_STATE_BUSY_TX_RX) + { + hirda->State = HAL_IRDA_STATE_BUSY_RX; + } + else + { + /* Disable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */ + __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_ERR); + + hirda->State = HAL_IRDA_STATE_READY; + } + + HAL_IRDA_TxCpltCallback(hirda); + + return HAL_OK; +} + +/** + * @brief Receive an amount of data in non blocking mode. + * Function called under interruption only, once + * interruptions have been enabled by HAL_IRDA_Receive_IT() + * @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 uhMask = hirda->Mask; + + if ((hirda->State == HAL_IRDA_STATE_BUSY_RX) || (hirda->State == HAL_IRDA_STATE_BUSY_TX_RX)) + { + if ((hirda->Init.WordLength == IRDA_WORDLENGTH_9B) && (hirda->Init.Parity == IRDA_PARITY_NONE)) + { + tmp = (uint16_t*) hirda->pRxBuffPtr ; + *tmp = (uint16_t)(hirda->Instance->RDR & uhMask); + hirda->pRxBuffPtr +=2; + } + else + { + *hirda->pRxBuffPtr++ = (uint8_t)(hirda->Instance->RDR & (uint8_t)uhMask); + } + + if(--hirda->RxXferCount == 0) + { + while(HAL_IS_BIT_SET(hirda->Instance->ISR, IRDA_FLAG_RXNE)) + { + } + __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_RXNE); + + if(hirda->State == HAL_IRDA_STATE_BUSY_TX_RX) + { + hirda->State = HAL_IRDA_STATE_BUSY_TX; + } + else + { + /* Disable the IRDA Parity Error Interrupt */ + __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_PE); + + /* Disable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */ + __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_ERR); + + hirda->State = HAL_IRDA_STATE_READY; + } + + HAL_IRDA_RxCpltCallback(hirda); + + return HAL_OK; + } + + return HAL_OK; + } + else + { + return HAL_BUSY; + } +} + +/** + * @brief DMA IRDA Tx transfer completed callback + * @param hdma: pointer to a DMA_HandleTypeDef structure that contains + * the configuration information for the specified DMA module. + * @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) == 0) + { + hirda->TxXferCount = 0; + + /* Disable the DMA transfer for transmit request by setting the DMAT bit + in the IRDA CR3 register */ + hirda->Instance->CR3 &= (uint32_t)~((uint32_t)USART_CR3_DMAT); + + /* Enable the IRDA Transmit Complete Interrupt */ + __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_TC); + } + /* 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 Rx Transfer completed 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) == 0) + { + hirda->RxXferCount = 0; + + /* Disable the DMA transfer for the receiver request by setting the DMAR bit + in the IRDA CR3 register */ + hirda->Instance->CR3 &= (uint16_t)~((uint16_t)USART_CR3_DMAR); + + if(hirda->State == HAL_IRDA_STATE_BUSY_TX_RX) + { + hirda->State = HAL_IRDA_STATE_BUSY_TX; + } + else + { + hirda->State = 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) +{ + IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; + hirda->RxXferCount = 0; + hirda->TxXferCount = 0; + hirda->State= HAL_IRDA_STATE_READY; + hirda->ErrorCode |= HAL_IRDA_ERROR_DMA; + HAL_IRDA_ErrorCallback(hirda); +} + +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_IRDA_MODULE_ENABLED */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |