Stuart Northfield
mbed library sources
Fork of
mbed-src
by 
mbed official
Diff: targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_irda.c
- Revision:
- 394:83f921546702
- Parent:
- 354:e67efb2aab0e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_irda.c Fri Nov 07 15:45:07 2014 +0000
@@ -0,0 +1,1571 @@
+/**
+ ******************************************************************************
+ * @file stm32l1xx_hal_irda.c
+ * @author MCD Application Team
+ * @version V1.0.0
+ * @date 5-September-2014
+ * @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 functions
+ * + IO operation functions
+ * + Peripheral State and Errors functions
+ * + Peripheral Control functions
+ *
+ @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 channel.
+ (+++) Enable the DMAx interface clock.
+ (+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
+ (+++) Configure the DMA Tx/Rx channel.
+ (+++) Associate the initilalized 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 channel.
+
+ (#) 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 customed 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 : Check whether the specified IRDA flag is set or not
+ (+) __HAL_IRDA_CLEAR_FLAG : Clear the specified IRDA pending flag
+ (+) __HAL_IRDA_ENABLE_IT: Enable the specified IRDA interrupt
+ (+) __HAL_IRDA_DISABLE_IT: Disable the specified IRDA interrupt
+
+ [..]
+ (@) You can refer to the IRDA HAL driver header file for more useful macros
+
+ @endverbatim
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2014 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 "stm32l1xx_hal.h"
+
+/** @addtogroup STM32L1xx_HAL_Driver
+ * @{
+ */
+
+/** @defgroup IRDA IRDA
+ * @brief HAL IRDA module driver
+ * @{
+ */
+
+#ifdef HAL_IRDA_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @defgroup IRDA_Private_Constants IRDA Private Constants
+ * @{
+ */
+#define IRDA_TIMEOUT_VALUE 22000
+#define IRDA_DR_MASK_U16_7DATABITS (uint16_t)0x007F
+#define IRDA_DR_MASK_U16_8DATABITS (uint16_t)0x00FF
+#define IRDA_DR_MASK_U16_9DATABITS (uint16_t)0x01FF
+
+#define IRDA_DR_MASK_U8_7DATABITS (uint8_t)0x7F
+#define IRDA_DR_MASK_U8_8DATABITS (uint8_t)0xFF
+
+
+/**
+ * @}
+ */
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/** @addtogroup IRDA_Private_Functions IRDA Private Functions
+ * @{
+ */
+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_SetConfig (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 HAL_StatusTypeDef IRDA_WaitOnFlagUntilTimeout(IRDA_HandleTypeDef *hirda, uint32_t Flag, FlagStatus Status, uint32_t Timeout);
+/**
+ * @}
+ */
+
+/* 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:
+ (++) Baud Rate
+ (++) Word Length
+ (++) 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),
+ the possible IRDA frame formats are as listed in the following table:
+ +-------------------------------------------------------------+
+ | M bit | PCE bit | IRDA frame |
+ |---------------------|---------------------------------------|
+ | 0 | 0 | | SB | 8 bit data | STB | |
+ |---------|-----------|---------------------------------------|
+ | 0 | 1 | | SB | 7 bit data | PB | STB | |
+ |---------|-----------|---------------------------------------|
+ | 1 | 0 | | SB | 9 bit data | STB | |
+ |---------|-----------|---------------------------------------|
+ | 1 | 1 | | SB | 8 bit data | PB | STB | |
+ +-------------------------------------------------------------+
+ (++) 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() function follows IRDA configuration procedures (details for the procedures
+ are available in reference manual (RM0038)).
+
+@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 == HAL_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->State == HAL_IRDA_STATE_RESET)
+ {
+ /* Init the low level hardware */
+ HAL_IRDA_MspInit(hirda);
+ }
+
+ hirda->State = 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->CR2, (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->State= 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 == HAL_NULL)
+ {
+ return HAL_ERROR;
+ }
+
+ /* Check the parameters */
+ assert_param(IS_IRDA_INSTANCE(hirda->Instance));
+
+ hirda->State = 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->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 can 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 can be implemented in the user file
+ */
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup IRDA_Exported_Functions_Group2 IO operation functions
+ * @brief IRDA Transmit and 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 respectivelly 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 APIs 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()
+ (++) HAL_IRDA_DMAPause()
+ (++) HAL_IRDA_DMAResume()
+ (++) HAL_IRDA_DMAStop()
+
+ (#) A set of Transfer Complete Callbacks are provided in non Blocking mode:
+ (++) HAL_IRDA_TxHalfCpltCallback()
+ (++) HAL_IRDA_TxCpltCallback()
+ (++) HAL_IRDA_RxHalfCpltCallback()
+ (++) 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 = 0;
+ uint32_t tmp1 = 0;
+
+ tmp1 = hirda->State;
+ if((tmp1 == HAL_IRDA_STATE_READY) || (tmp1 == HAL_IRDA_STATE_BUSY_RX))
+ {
+ if((pData == HAL_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)
+ {
+ if(hirda->Init.WordLength == IRDA_WORDLENGTH_9B)
+ {
+ if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TXE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ tmp = (uint16_t*) pData;
+ WRITE_REG(hirda->Instance->DR,(*tmp & IRDA_DR_MASK_U16_9DATABITS));
+ if(hirda->Init.Parity == IRDA_PARITY_NONE)
+ {
+ pData +=2;
+ }
+ else
+ {
+ pData +=1;
+ }
+ }
+ else
+ {
+ if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TXE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ WRITE_REG(hirda->Instance->DR, (*pData++ & IRDA_DR_MASK_U8_8DATABITS));
+ }
+ hirda->TxXferCount--;
+ }
+
+ 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 = 0;
+ uint32_t tmp1 = 0;
+
+ tmp1 = hirda->State;
+ if((tmp1 == HAL_IRDA_STATE_READY) || (tmp1 == HAL_IRDA_STATE_BUSY_TX))
+ {
+ if((pData == HAL_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;
+ /* Check the remain data to be received */
+ while(hirda->RxXferCount > 0)
+ {
+ if(hirda->Init.WordLength == IRDA_WORDLENGTH_9B)
+ {
+ if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_RXNE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ tmp = (uint16_t*) pData ;
+ if(hirda->Init.Parity == IRDA_PARITY_NONE)
+ {
+ *tmp = (uint16_t)(hirda->Instance->DR & IRDA_DR_MASK_U16_9DATABITS);
+ pData +=2;
+ }
+ else
+ {
+ *tmp = (uint16_t)(hirda->Instance->DR & IRDA_DR_MASK_U16_8DATABITS);
+ pData +=1;
+ }
+ }
+ else
+ {
+ if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_RXNE, RESET, Timeout) != HAL_OK)
+ {
+ return HAL_TIMEOUT;
+ }
+ if(hirda->Init.Parity == IRDA_PARITY_NONE)
+ {
+ *pData++ = (uint8_t)(hirda->Instance->DR & IRDA_DR_MASK_U8_8DATABITS);
+ }
+ else
+ {
+ *pData++ = (uint8_t)(hirda->Instance->DR & IRDA_DR_MASK_U8_7DATABITS);
+ }
+ }
+ hirda->RxXferCount--;
+ }
+ 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 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_IT(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size)
+{
+ uint32_t tmp = 0;
+
+ tmp = hirda->State;
+ if((tmp == HAL_IRDA_STATE_READY) || (tmp == HAL_IRDA_STATE_BUSY_RX))
+ {
+ if((pData == HAL_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 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 Transmit Data Register Empty Interrupt */
+ __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_TXE);
+
+ 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)
+{
+ uint32_t tmp = 0;
+
+ tmp = hirda->State;
+ if((tmp == HAL_IRDA_STATE_READY) || (tmp == HAL_IRDA_STATE_BUSY_TX))
+ {
+ if((pData == HAL_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;
+ 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 Data Register not empty Interrupt */
+ __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_RXNE);
+
+ /* 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);
+
+ 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 = 0;
+ uint32_t tmp1 = 0;
+
+ tmp1 = hirda->State;
+ if((tmp1 == HAL_IRDA_STATE_READY) || (tmp1 == HAL_IRDA_STATE_BUSY_RX))
+ {
+ if((pData == HAL_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 transfert 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->DR, Size);
+
+ /* 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);
+
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ return HAL_OK;
+ }
+ else
+ {
+ return HAL_BUSY;
+ }
+}
+
+/**
+ * @brief Receive 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 = 0;
+ uint32_t tmp1 = 0;
+
+ tmp1 = hirda->State;
+ if((tmp1 == HAL_IRDA_STATE_READY) || (tmp1 == HAL_IRDA_STATE_BUSY_TX))
+ {
+ if((pData == HAL_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 transfert 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->DR, *(uint32_t*)tmp, Size);
+
+ /* 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);
+
+ /* 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 */
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+ }
+ else if(hirda->State == HAL_IRDA_STATE_BUSY_RX)
+ {
+ /* Disable the UART DMA Rx request */
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+ }
+ else if (hirda->State == HAL_IRDA_STATE_BUSY_TX_RX)
+ {
+ /* Disable the UART DMA Tx & Rx requests */
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+ }
+ else
+ {
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ return HAL_ERROR;
+ }
+
+ /* 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 */
+ SET_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+ }
+ else if(hirda->State == HAL_IRDA_STATE_BUSY_RX)
+ {
+ /* Clear the Overrun flag before resumming the Rx transfer*/
+ __HAL_IRDA_CLEAR_OREFLAG(hirda);
+ /* Enable the UART DMA Rx request */
+ SET_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+ }
+ else if(hirda->State == HAL_IRDA_STATE_BUSY_TX_RX)
+ {
+ /* Clear the Overrun flag before resumming the Rx transfer*/
+ __HAL_IRDA_CLEAR_OREFLAG(hirda);
+ /* Enable the UART DMA Tx & Rx request */
+ SET_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+ SET_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+ }
+ else
+ {
+ /* Process Unlocked */
+ __HAL_UNLOCK(hirda);
+
+ return HAL_ERROR;
+ }
+
+ /* 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 UART API under callbacks HAL_UART_TxCpltCallback() / HAL_UART_RxCpltCallback():
+ when calling HAL_DMA_Abort() API the DMA TX/RX Transfer complete interrupt is generated
+ and the correspond call back is executed HAL_UART_TxCpltCallback() / HAL_UART_RxCpltCallback()
+ */
+
+ /* Disable the UART Tx/Rx DMA requests */
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT);
+ CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR);
+
+ /* Abort the UART DMA tx channel */
+ if(hirda->hdmatx != HAL_NULL)
+ {
+ HAL_DMA_Abort(hirda->hdmatx);
+ }
+ /* Abort the UART DMA rx channel */
+ if(hirda->hdmarx != HAL_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)
+{
+ uint32_t tmp1 = 0, tmp2 = 0;
+
+ tmp1 = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_PE);
+ tmp2 = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_PE);
+ /* IRDA parity error interrupt occurred -----------------------------------*/
+ if((tmp1 != RESET) && (tmp2 != RESET))
+ {
+ __HAL_IRDA_CLEAR_PEFLAG(hirda);
+ hirda->ErrorCode |= HAL_IRDA_ERROR_PE;
+ }
+
+ tmp1 = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_FE);
+ tmp2 = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_ERR);
+ /* IRDA frame error interrupt occurred ------------------------------------*/
+ if((tmp1 != RESET) && (tmp2 != RESET))
+ {
+ __HAL_IRDA_CLEAR_FEFLAG(hirda);
+ hirda->ErrorCode |= HAL_IRDA_ERROR_FE;
+ }
+
+ tmp1 = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_NE);
+ tmp2 = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_ERR);
+ /* IRDA noise error interrupt occurred ------------------------------------*/
+ if((tmp1 != RESET) && (tmp2 != RESET))
+ {
+ __HAL_IRDA_CLEAR_NEFLAG(hirda);
+ hirda->ErrorCode |= HAL_IRDA_ERROR_NE;
+ }
+
+ tmp1 = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_ORE);
+ tmp2 = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_ERR);
+ /* IRDA Over-Run interrupt occurred ---------------------------------------*/
+ if((tmp1 != RESET) && (tmp2 != RESET))
+ {
+ __HAL_IRDA_CLEAR_OREFLAG(hirda);
+ hirda->ErrorCode |= HAL_IRDA_ERROR_ORE;
+ }
+
+ /* Call the Error call Back in case of Errors */
+ if(hirda->ErrorCode != HAL_IRDA_ERROR_NONE)
+ {
+ /* Disable PE and ERR interrupt */
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_ERR);
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_PE);
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_TXE);
+
+ /* Set the IRDA state ready to be able to start again the process */
+ hirda->State = HAL_IRDA_STATE_READY;
+ HAL_IRDA_ErrorCallback(hirda);
+ }
+
+ tmp1 = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_RXNE);
+ tmp2 = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_RXNE);
+ /* IRDA in mode Receiver --------------------------------------------------*/
+ if((tmp1 != RESET) && (tmp2 != RESET))
+ {
+ IRDA_Receive_IT(hirda);
+ }
+
+ tmp1 = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_TXE);
+ tmp2 = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_TXE);
+ /* IRDA in mode Transmitter -----------------------------------------------*/
+ if((tmp1 != RESET) && (tmp2 != RESET))
+ {
+ IRDA_Transmit_IT(hirda);
+ }
+
+ tmp1 = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_TC);
+ tmp2 = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_TC);
+ /* IRDA in mode Transmitter (transmission end) -----------------------------*/
+ if((tmp1 != RESET) && (tmp2 != RESET))
+ {
+ IRDA_EndTransmit_IT(hirda);
+ }
+
+}
+
+/**
+ * @brief Tx Transfer completed 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)
+{
+ /* NOTE: This function should not be modified, when the callback is needed,
+ the HAL_IRDA_TxCpltCallback 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_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 Rx Transfer completed 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 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)
+{
+ /* NOTE : This function should not be modified, when the callback is needed,
+ the HAL_IRDA_RxHalfCpltCallback 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 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)
+{
+ 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 module.
+ * @retval IRDA Error Code
+ */
+uint32_t HAL_IRDA_GetError(IRDA_HandleTypeDef *hirda)
+{
+ return hirda->ErrorCode;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/** @defgroup IRDA_Private_Functions IRDA Private Functions
+ * @brief IRDA Private functions
+ * @{
+ */
+/**
+ * @brief DMA IRDA transmit process 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_DMATransmitCplt(DMA_HandleTypeDef *hdma)
+{
+ IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+ /* DMA Normal mode */
+ if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0)
+ {
+ 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);
+
+ /* Wait for IRDA TC Flag */
+ if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TC, RESET, IRDA_TIMEOUT_VALUE) != HAL_OK)
+ {
+ /* Timeout occurred */
+ hirda->State = HAL_IRDA_STATE_TIMEOUT;
+ HAL_IRDA_ErrorCallback(hirda);
+ }
+ else
+ {
+ /* No Timeout */
+ /* 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
+ {
+ hirda->State = HAL_IRDA_STATE_READY;
+ }
+ HAL_IRDA_TxCpltCallback(hirda);
+ }
+ }
+ /* 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: Pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA module.
+ * @retval None
+ */
+static void IRDA_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
+{
+ IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
+ /* DMA Normal mode */
+ if((hdma->Instance->CCR & DMA_CCR_CIRC) == 0)
+ {
+ hirda->RxXferCount = 0;
+
+ /* 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);
+
+ 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: Pointer to a DMA_HandleTypeDef structure that contains
+ * the configuration information for the specified DMA module.
+ * @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->ErrorCode |= HAL_IRDA_ERROR_DMA;
+ hirda->State= HAL_IRDA_STATE_READY;
+
+ 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 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 = 0;
+
+ /* Get tick */
+ 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.
+ * Function called under interruption only, once
+ * interruptions have been enabled by HAL_IRDA_Transmit_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_Transmit_IT(IRDA_HandleTypeDef *hirda)
+{
+ uint16_t* tmp = 0;
+ uint32_t tmp1 = 0;
+
+ tmp1 = hirda->State;
+ if((tmp1 == HAL_IRDA_STATE_BUSY_TX) || (tmp1 == HAL_IRDA_STATE_BUSY_TX_RX))
+ {
+ if(hirda->Init.WordLength == IRDA_WORDLENGTH_9B)
+ {
+ tmp = (uint16_t*) hirda->pTxBuffPtr;
+ WRITE_REG(hirda->Instance->DR, (uint16_t)(*tmp & IRDA_DR_MASK_U16_9DATABITS));
+ if(hirda->Init.Parity == IRDA_PARITY_NONE)
+ {
+ hirda->pTxBuffPtr += 2;
+ }
+ else
+ {
+ hirda->pTxBuffPtr += 1;
+ }
+ }
+ else
+ {
+ WRITE_REG(hirda->Instance->DR, (uint8_t)(*hirda->pTxBuffPtr++ & IRDA_DR_MASK_U8_8DATABITS));
+ }
+
+ if(--hirda->TxXferCount == 0)
+ {
+ /* Disable the IRDA Transmit Data Register Empty Interrupt */
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_TXE);
+
+ /* Enable the IRDA Transmit Complete Interrupt */
+ __HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_TC);
+ }
+
+ 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);
+
+ /* Disable the IRDA Parity Error Interrupt */
+ __HAL_IRDA_DISABLE_IT(hirda, IRDA_IT_PE);
+
+ hirda->State = HAL_IRDA_STATE_READY;
+ }
+
+ HAL_IRDA_TxCpltCallback(hirda);
+
+ return HAL_OK;
+}
+
+
+/**
+ * @brief Receive 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 = 0;
+ uint32_t tmp1 = 0;
+
+ tmp1 = hirda->State;
+ if((tmp1 == HAL_IRDA_STATE_BUSY_RX) || (tmp1 == HAL_IRDA_STATE_BUSY_TX_RX))
+ {
+ if(hirda->Init.WordLength == IRDA_WORDLENGTH_9B)
+ {
+ tmp = (uint16_t*) hirda->pRxBuffPtr;
+ if(hirda->Init.Parity == IRDA_PARITY_NONE)
+ {
+ *tmp = (uint16_t)(hirda->Instance->DR & IRDA_DR_MASK_U16_9DATABITS);
+ hirda->pRxBuffPtr += 2;
+ }
+ else
+ {
+ *tmp = (uint16_t)(hirda->Instance->DR & IRDA_DR_MASK_U16_8DATABITS);
+ hirda->pRxBuffPtr += 1;
+ }
+ }
+ else
+ {
+ if(hirda->Init.Parity == IRDA_PARITY_NONE)
+ {
+ *hirda->pRxBuffPtr++ = (uint8_t)(hirda->Instance->DR & IRDA_DR_MASK_U8_8DATABITS);
+ }
+ else
+ {
+ *hirda->pRxBuffPtr++ = (uint8_t)(hirda->Instance->DR & IRDA_DR_MASK_U8_7DATABITS);
+ }
+ }
+
+ if(--hirda->RxXferCount == 0)
+ {
+
+ __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 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 -----------------------*/
+ /* 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 */
+ MODIFY_REG(hirda->Instance->CR1,
+ ((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | USART_CR1_RE)),
+ (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->BRR = IRDA_BRR(HAL_RCC_GetPCLK2Freq(), hirda->Init.BaudRate);
+ }
+ else
+ {
+ hirda->Instance->BRR = IRDA_BRR(HAL_RCC_GetPCLK1Freq(), hirda->Init.BaudRate);
+ }
+}
+/**
+ * @}
+ */
+
+#endif /* HAL_IRDA_MODULE_ENABLED */
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
