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1503 lines
49 KiB
1503 lines
49 KiB
![]()
9 years ago
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/**
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******************************************************************************
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* @file stm32f4xx_hal_irda.c
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* @author MCD Application Team
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* @version V1.2.0
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* @date 26-December-2014
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* @brief IRDA HAL module driver.
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* This file provides firmware functions to manage the following
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* functionalities of the IrDA SIR ENDEC block (IrDA):
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* + Initialization and de-initialization methods
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* + IO operation methods
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* + Peripheral Control methods
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*
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@verbatim
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==============================================================================
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##### How to use this driver #####
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==============================================================================
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[..]
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The IRDA HAL driver can be used as follows:
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(#) Declare a IRDA_HandleTypeDef handle structure.
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(#) Initialize the IRDA low level resources by implementing the HAL_IRDA_MspInit() API:
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(##) Enable the USARTx interface clock.
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(##) IRDA pins configuration:
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(+++) Enable the clock for the IRDA GPIOs.
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(+++) Configure these IRDA pins as alternate function pull-up.
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(##) NVIC configuration if you need to use interrupt process (HAL_IRDA_Transmit_IT()
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and HAL_IRDA_Receive_IT() APIs):
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(+++) Configure the USARTx interrupt priority.
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(+++) Enable the NVIC USART IRQ handle.
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(##) DMA Configuration if you need to use DMA process (HAL_IRDA_Transmit_DMA()
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and HAL_IRDA_Receive_DMA() APIs):
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(+++) Declare a DMA handle structure for the Tx/Rx stream.
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(+++) Enable the DMAx interface clock.
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(+++) Configure the declared DMA handle structure with the required Tx/Rx parameters.
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(+++) Configure the DMA Tx/Rx Stream.
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(+++) Associate the initialized DMA handle to the IRDA DMA Tx/Rx handle.
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(+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the DMA Tx/Rx Stream.
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(#) Program the Baud Rate, Word Length, Parity, IrDA Mode, Prescaler
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and Mode(Receiver/Transmitter) in the hirda Init structure.
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(#) Initialize the IRDA registers by calling the HAL_IRDA_Init() API:
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(++) This API configures also the low level Hardware GPIO, CLOCK, CORTEX...etc)
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by calling the customized HAL_IRDA_MspInit() API.
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-@@- The specific IRDA interrupts (Transmission complete interrupt,
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RXNE interrupt and Error Interrupts) will be managed using the macros
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__HAL_IRDA_ENABLE_IT() and __HAL_IRDA_DISABLE_IT() inside the transmit and receive process.
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(#) Three operation modes are available within this driver :
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*** Polling mode IO operation ***
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=================================
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[..]
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(+) Send an amount of data in blocking mode using HAL_IRDA_Transmit()
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(+) Receive an amount of data in blocking mode using HAL_IRDA_Receive()
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*** Interrupt mode IO operation ***
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===================================
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[..]
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(+) Send an amount of data in non blocking mode using HAL_IRDA_Transmit_IT()
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(+) At transmission end of transfer HAL_IRDA_TxCpltCallback is executed and user can
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add his own code by customization of function pointer HAL_IRDA_TxCpltCallback
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(+) Receive an amount of data in non blocking mode using HAL_IRDA_Receive_IT()
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(+) At reception end of transfer HAL_IRDA_RxCpltCallback is executed and user can
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add his own code by customization of function pointer HAL_IRDA_RxCpltCallback
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(+) In case of transfer Error, HAL_IRDA_ErrorCallback() function is executed and user can
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add his own code by customization of function pointer HAL_IRDA_ErrorCallback
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*** DMA mode IO operation ***
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=============================
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[..]
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(+) Send an amount of data in non blocking mode (DMA) using HAL_IRDA_Transmit_DMA()
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(+) At transmission end of transfer HAL_IRDA_TxCpltCallback is executed and user can
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add his own code by customization of function pointer HAL_IRDA_TxCpltCallback
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(+) Receive an amount of data in non blocking mode (DMA) using HAL_IRDA_Receive_DMA()
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(+) At reception end of transfer HAL_IRDA_RxCpltCallback is executed and user can
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add his own code by customization of function pointer HAL_IRDA_RxCpltCallback
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(+) In case of transfer Error, HAL_IRDA_ErrorCallback() function is executed and user can
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add his own code by customization of function pointer HAL_IRDA_ErrorCallback
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*** IRDA HAL driver macros list ***
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===================================
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[..]
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Below the list of most used macros in IRDA HAL driver.
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(+) __HAL_IRDA_ENABLE: Enable the IRDA peripheral
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(+) __HAL_IRDA_DISABLE: Disable the IRDA peripheral
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(+) __HAL_IRDA_GET_FLAG : Checks whether the specified IRDA flag is set or not
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(+) __HAL_IRDA_CLEAR_FLAG : Clears the specified IRDA pending flag
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(+) __HAL_IRDA_ENABLE_IT: Enables the specified IRDA interrupt
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(+) __HAL_IRDA_DISABLE_IT: Disables the specified IRDA interrupt
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(@) You can refer to the IRDA HAL driver header file for more useful macros
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@endverbatim
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f4xx_hal.h"
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/** @addtogroup STM32F4xx_HAL_Driver
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* @{
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*/
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/** @defgroup IRDA IRDA
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* @brief HAL IRDA module driver
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* @{
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*/
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#ifdef HAL_IRDA_MODULE_ENABLED
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/** @addtogroup IRDA_Private_Constants
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* @{
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*/
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#define IRDA_TIMEOUT_VALUE 22000
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/**
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* @}
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*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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/** @addtogroup IRDA_Private_Functions
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* @{
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*/
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static void IRDA_SetConfig (IRDA_HandleTypeDef *hirda);
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static HAL_StatusTypeDef IRDA_Transmit_IT(IRDA_HandleTypeDef *hirda);
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static HAL_StatusTypeDef IRDA_EndTransmit_IT(IRDA_HandleTypeDef *hirda);
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static HAL_StatusTypeDef IRDA_Receive_IT(IRDA_HandleTypeDef *hirda);
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static void IRDA_DMATransmitCplt(DMA_HandleTypeDef *hdma);
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static void IRDA_DMATransmitHalfCplt(DMA_HandleTypeDef *hdma);
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static void IRDA_DMAReceiveCplt(DMA_HandleTypeDef *hdma);
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static void IRDA_DMAReceiveHalfCplt(DMA_HandleTypeDef *hdma);
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static void IRDA_DMAError(DMA_HandleTypeDef *hdma);
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static HAL_StatusTypeDef IRDA_WaitOnFlagUntilTimeout(IRDA_HandleTypeDef *hirda, uint32_t Flag, FlagStatus Status, uint32_t Timeout);
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/**
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* @}
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*/
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/* Exported functions --------------------------------------------------------*/
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/** @defgroup IRDA_Exported_Functions IrDA Exported Functions
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* @{
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*/
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/** @defgroup IRDA_Exported_Functions_Group1 IrDA Initialization and de-initialization functions
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* @brief Initialization and Configuration functions
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*
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@verbatim
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===============================================================================
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##### Initialization and Configuration functions #####
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===============================================================================
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[..]
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This subsection provides a set of functions allowing to initialize the USARTx or the UARTy
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in IrDA mode.
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(+) For the asynchronous mode only these parameters can be configured:
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(++) BaudRate
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(++) WordLength
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(++) Parity: If the parity is enabled, then the MSB bit of the data written
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in the data register is transmitted but is changed by the parity bit.
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Depending on the frame length defined by the M bit (8-bits or 9-bits),
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please refer to Reference manual for possible IRDA frame formats.
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(++) Prescaler: A pulse of width less than two and greater than one PSC period(s) may or may
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not be rejected. The receiver set up time should be managed by software. The IrDA physical layer
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specification specifies a minimum of 10 ms delay between transmission and
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reception (IrDA is a half duplex protocol).
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(++) Mode: Receiver/transmitter modes
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(++) IrDAMode: the IrDA can operate in the Normal mode or in the Low power mode.
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[..]
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The HAL_IRDA_Init() API follows IRDA configuration procedures (details for the procedures
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are available in reference manual).
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@endverbatim
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* @{
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*/
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/**
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* @brief Initializes the IRDA mode according to the specified
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* parameters in the IRDA_InitTypeDef and create the associated handle.
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* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains
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* the configuration information for the specified IRDA module.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_IRDA_Init(IRDA_HandleTypeDef *hirda)
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{
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/* Check the IRDA handle allocation */
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if(hirda == NULL)
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{
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return HAL_ERROR;
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}
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/* Check the IRDA instance parameters */
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assert_param(IS_IRDA_INSTANCE(hirda->Instance));
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/* Check the IRDA mode parameter in the IRDA handle */
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assert_param(IS_IRDA_POWERMODE(hirda->Init.IrDAMode));
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if(hirda->State == HAL_IRDA_STATE_RESET)
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{
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/* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */
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HAL_IRDA_MspInit(hirda);
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}
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hirda->State = HAL_IRDA_STATE_BUSY;
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/* Disable the IRDA peripheral */
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__HAL_IRDA_DISABLE(hirda);
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/* Set the IRDA communication parameters */
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IRDA_SetConfig(hirda);
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/* In IrDA mode, the following bits must be kept cleared:
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- LINEN, STOP and CLKEN bits in the USART_CR2 register,
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- SCEN and HDSEL bits in the USART_CR3 register.*/
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hirda->Instance->CR2 &= ~(USART_CR2_LINEN | USART_CR2_STOP | USART_CR2_CLKEN);
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hirda->Instance->CR3 &= ~(USART_CR3_SCEN | USART_CR3_HDSEL);
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/* Enable the IRDA peripheral */
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__HAL_IRDA_ENABLE(hirda);
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/* Set the prescaler */
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MODIFY_REG(hirda->Instance->GTPR, USART_GTPR_PSC, hirda->Init.Prescaler);
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/* Configure the IrDA mode */
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MODIFY_REG(hirda->Instance->CR3, USART_CR3_IRLP, hirda->Init.IrDAMode);
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/* Enable the IrDA mode by setting the IREN bit in the CR3 register */
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hirda->Instance->CR3 |= USART_CR3_IREN;
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/* Initialize the IRDA state*/
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hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
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hirda->State= HAL_IRDA_STATE_READY;
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return HAL_OK;
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}
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/**
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* @brief DeInitializes the IRDA peripheral
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* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains
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* the configuration information for the specified IRDA module.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_IRDA_DeInit(IRDA_HandleTypeDef *hirda)
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{
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/* Check the IRDA handle allocation */
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if(hirda == NULL)
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{
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return HAL_ERROR;
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}
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/* Check the parameters */
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assert_param(IS_IRDA_INSTANCE(hirda->Instance));
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hirda->State = HAL_IRDA_STATE_BUSY;
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/* Disable the Peripheral */
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__HAL_IRDA_DISABLE(hirda);
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/* DeInit the low level hardware */
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HAL_IRDA_MspDeInit(hirda);
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hirda->ErrorCode = HAL_IRDA_ERROR_NONE;
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hirda->State = HAL_IRDA_STATE_RESET;
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/* Release Lock */
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__HAL_UNLOCK(hirda);
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return HAL_OK;
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}
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/**
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* @brief IRDA MSP Init.
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* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains
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* the configuration information for the specified IRDA module.
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* @retval None
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*/
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__weak void HAL_IRDA_MspInit(IRDA_HandleTypeDef *hirda)
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{
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/* NOTE : This function Should not be modified, when the callback is needed,
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the HAL_IRDA_MspInit could be implemented in the user file
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*/
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}
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/**
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* @brief IRDA MSP DeInit.
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* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains
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* the configuration information for the specified IRDA module.
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* @retval None
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*/
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__weak void HAL_IRDA_MspDeInit(IRDA_HandleTypeDef *hirda)
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{
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/* NOTE : This function Should not be modified, when the callback is needed,
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the HAL_IRDA_MspDeInit could be implemented in the user file
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*/
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}
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/**
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* @}
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*/
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/** @defgroup IRDA_Exported_Functions_Group2 IO operation functions
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* @brief IRDA Transmit/Receive functions
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*
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@verbatim
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||
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===============================================================================
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||
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##### IO operation functions #####
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||
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===============================================================================
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||
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This subsection provides a set of functions allowing to manage the IRDA data transfers.
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[..]
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IrDA is a half duplex communication protocol. If the Transmitter is busy, any data
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on the IrDA receive line will be ignored by the IrDA decoder and if the Receiver
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is busy, data on the TX from the USART to IrDA will not be encoded by IrDA.
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While receiving data, transmission should be avoided as the data to be transmitted
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could be corrupted.
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(#) There are two modes of transfer:
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(++) Blocking mode: The communication is performed in polling mode.
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The HAL status of all data processing is returned by the same function
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after finishing transfer.
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(++) No-Blocking mode: The communication is performed using Interrupts
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or DMA, These APIs return the HAL status.
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The end of the data processing will be indicated through the
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dedicated IRDA IRQ when using Interrupt mode or the DMA IRQ when
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using DMA mode.
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The HAL_IRDA_TxCpltCallback(), HAL_IRDA_RxCpltCallback() user callbacks
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will be executed respectively at the end of the transmit or Receive process
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The HAL_IRDA_ErrorCallback() user callback will be executed when a communication error is detected
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(#) Blocking mode API's are :
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(++) HAL_IRDA_Transmit()
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(++) HAL_IRDA_Receive()
|
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|
|
||
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(#) Non Blocking mode APIs with Interrupt are :
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(++) HAL_IRDA_Transmit_IT()
|
||
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(++) HAL_IRDA_Receive_IT()
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(++) HAL_IRDA_IRQHandler()
|
||
|
|
||
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(#) Non Blocking mode functions with DMA are :
|
||
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(++) HAL_IRDA_Transmit_DMA()
|
||
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(++) HAL_IRDA_Receive_DMA()
|
||
|
|
||
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(#) A set of Transfer Complete Callbacks are provided in non Blocking mode:
|
||
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(++) HAL_IRDA_TxCpltCallback()
|
||
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(++) HAL_IRDA_RxCpltCallback()
|
||
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(++) HAL_IRDA_ErrorCallback()
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||
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||
|
@endverbatim
|
||
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* @{
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||
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*/
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||
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/**
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||
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* @brief Sends an amount of data in blocking mode.
|
||
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* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains
|
||
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* the configuration information for the specified IRDA module.
|
||
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* @param pData: Pointer to data buffer
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* @param Size: Amount of data to be sent
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* @param Timeout: Specify timeout value
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* @retval HAL status
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||
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*/
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HAL_StatusTypeDef HAL_IRDA_Transmit(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size, uint32_t Timeout)
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{
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uint16_t* tmp;
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uint32_t tmp1 = 0;
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tmp1 = hirda->State;
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if((tmp1 == HAL_IRDA_STATE_READY) || (tmp1 == HAL_IRDA_STATE_BUSY_RX))
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{
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||
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if((pData == NULL) || (Size == 0))
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||
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{
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||
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return HAL_ERROR;
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||
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}
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|
||
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/* Process Locked */
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||
|
__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(hirda->Init.WordLength == IRDA_WORDLENGTH_9B)
|
||
|
{
|
||
|
if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TXE, RESET, Timeout) != HAL_OK)
|
||
|
{
|
||
|
return HAL_TIMEOUT;
|
||
|
}
|
||
|
tmp = (uint16_t*) pData;
|
||
|
hirda->Instance->DR = (*tmp & (uint16_t)0x01FF);
|
||
|
if(hirda->Init.Parity == IRDA_PARITY_NONE)
|
||
|
{
|
||
|
pData +=2;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
pData +=1;
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TXE, RESET, Timeout) != HAL_OK)
|
||
|
{
|
||
|
return HAL_TIMEOUT;
|
||
|
}
|
||
|
hirda->Instance->DR = (*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;
|
||
|
uint32_t tmp1 = 0;
|
||
|
|
||
|
tmp1 = hirda->State;
|
||
|
if((tmp1 == HAL_IRDA_STATE_READY) || (tmp1 == 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;
|
||
|
/* Check the remain data to be received */
|
||
|
while(hirda->RxXferCount > 0)
|
||
|
{
|
||
|
hirda->RxXferCount--;
|
||
|
if(hirda->Init.WordLength == IRDA_WORDLENGTH_9B)
|
||
|
{
|
||
|
if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_RXNE, RESET, Timeout) != HAL_OK)
|
||
|
{
|
||
|
return HAL_TIMEOUT;
|
||
|
}
|
||
|
tmp = (uint16_t*) pData ;
|
||
|
if(hirda->Init.Parity == IRDA_PARITY_NONE)
|
||
|
{
|
||
|
*tmp = (uint16_t)(hirda->Instance->DR & (uint16_t)0x01FF);
|
||
|
pData +=2;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
*tmp = (uint16_t)(hirda->Instance->DR & (uint16_t)0x00FF);
|
||
|
pData +=1;
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_RXNE, RESET, Timeout) != HAL_OK)
|
||
|
{
|
||
|
return HAL_TIMEOUT;
|
||
|
}
|
||
|
if(hirda->Init.Parity == IRDA_PARITY_NONE)
|
||
|
{
|
||
|
*pData++ = (uint8_t)(hirda->Instance->DR & (uint8_t)0x00FF);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
*pData++ = (uint8_t)(hirda->Instance->DR & (uint8_t)0x007F);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
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)
|
||
|
{
|
||
|
uint32_t tmp1 = 0;
|
||
|
|
||
|
tmp1 = hirda->State;
|
||
|
if((tmp1 == HAL_IRDA_STATE_READY) || (tmp1 == 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;
|
||
|
}
|
||
|
|
||
|
/* Process Unlocked */
|
||
|
__HAL_UNLOCK(hirda);
|
||
|
|
||
|
/* Enable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */
|
||
|
__HAL_IRDA_ENABLE_IT(hirda, IRDA_IT_ERR);
|
||
|
|
||
|
/* 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 tmp1 = 0;
|
||
|
|
||
|
tmp1 = hirda->State;
|
||
|
if((tmp1 == HAL_IRDA_STATE_READY) || (tmp1 == 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;
|
||
|
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;
|
||
|
}
|
||
|
|
||
|
/* Process Unlocked */
|
||
|
__HAL_UNLOCK(hirda);
|
||
|
|
||
|
/* 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);
|
||
|
|
||
|
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;
|
||
|
uint32_t tmp1 = 0;
|
||
|
|
||
|
tmp1 = hirda->State;
|
||
|
if((tmp1 == HAL_IRDA_STATE_READY) || (tmp1 == 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 Stream */
|
||
|
tmp = (uint32_t*)&pData;
|
||
|
HAL_DMA_Start_IT(hirda->hdmatx, *(uint32_t*)tmp, (uint32_t)&hirda->Instance->DR, Size);
|
||
|
|
||
|
/* Clear the TC flag in the SR register by writing 0 to it */
|
||
|
__HAL_IRDA_CLEAR_FLAG(hirda, IRDA_FLAG_TC);
|
||
|
|
||
|
/* Enable the DMA transfer for transmit request by setting the DMAT bit
|
||
|
in the USART 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;
|
||
|
uint32_t tmp1 = 0;
|
||
|
|
||
|
tmp1 = hirda->State;
|
||
|
if((tmp1 == HAL_IRDA_STATE_READY) || (tmp1 == 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 Stream */
|
||
|
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 */
|
||
|
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);
|
||
|
}
|
||
|
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 */
|
||
|
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_OREFLAG(hirda);
|
||
|
/* 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_OREFLAG(hirda);
|
||
|
/* Enable the UART DMA Tx & Rx request */
|
||
|
hirda->Instance->CR3 |= USART_CR3_DMAT;
|
||
|
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 */
|
||
|
hirda->Instance->CR3 &= ~USART_CR3_DMAT;
|
||
|
hirda->Instance->CR3 &= ~USART_CR3_DMAR;
|
||
|
|
||
|
/* Abort the UART DMA tx Stream */
|
||
|
if(hirda->hdmatx != NULL)
|
||
|
{
|
||
|
HAL_DMA_Abort(hirda->hdmatx);
|
||
|
}
|
||
|
/* Abort the UART DMA rx Stream */
|
||
|
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)
|
||
|
{
|
||
|
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)
|
||
|
{
|
||
|
/* 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 complete callbacks.
|
||
|
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified IRDA module.
|
||
|
* @retval None
|
||
|
*/
|
||
|
__weak void HAL_IRDA_TxCpltCallback(IRDA_HandleTypeDef *hirda)
|
||
|
{
|
||
|
/* NOTE : This function Should not be modified, when the callback is needed,
|
||
|
the HAL_IRDA_TxCpltCallback could be implemented in the user file
|
||
|
*/
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Tx Half Transfer completed callbacks.
|
||
|
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified USART module.
|
||
|
* @retval None
|
||
|
*/
|
||
|
__weak void HAL_IRDA_TxHalfCpltCallback(IRDA_HandleTypeDef *hirda)
|
||
|
{
|
||
|
/* NOTE: This function Should not be modified, when the callback is needed,
|
||
|
the HAL_IRDA_TxHalfCpltCallback could be implemented in the user file
|
||
|
*/
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Rx Transfer complete callbacks.
|
||
|
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified IRDA module.
|
||
|
* @retval None
|
||
|
*/
|
||
|
__weak void HAL_IRDA_RxCpltCallback(IRDA_HandleTypeDef *hirda)
|
||
|
{
|
||
|
/* NOTE : This function Should not be modified, when the callback is needed,
|
||
|
the HAL_IRDA_RxCpltCallback could be implemented in the user file
|
||
|
*/
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Rx Half Transfer complete callbacks.
|
||
|
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified IRDA module.
|
||
|
* @retval None
|
||
|
*/
|
||
|
__weak void HAL_IRDA_RxHalfCpltCallback(IRDA_HandleTypeDef *hirda)
|
||
|
{
|
||
|
/* NOTE : This function Should not be modified, when the callback is needed,
|
||
|
the HAL_IRDA_RxHalfCpltCallback could be implemented in the user file
|
||
|
*/
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief IRDA error callbacks.
|
||
|
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified IRDA module.
|
||
|
* @retval None
|
||
|
*/
|
||
|
__weak void HAL_IRDA_ErrorCallback(IRDA_HandleTypeDef *hirda)
|
||
|
{
|
||
|
/* NOTE : This function Should not be modified, when the callback is needed,
|
||
|
the HAL_IRDA_ErrorCallback could 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 IARDA error code
|
||
|
* @param hirda : pointer to a IRDA_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified IRDA.
|
||
|
* @retval IRDA Error Code
|
||
|
*/
|
||
|
uint32_t HAL_IRDA_GetError(IRDA_HandleTypeDef *hirda)
|
||
|
{
|
||
|
return hirda->ErrorCode;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @}
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
* @brief DMA IRDA transmit process complete callback.
|
||
|
* @param hdma : DMA handle
|
||
|
* @retval None
|
||
|
*/
|
||
|
static void IRDA_DMATransmitCplt(DMA_HandleTypeDef *hdma)
|
||
|
{
|
||
|
IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
|
||
|
/* DMA Normal mode */
|
||
|
if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0)
|
||
|
{
|
||
|
hirda->TxXferCount = 0;
|
||
|
|
||
|
/* Disable the DMA transfer for transmit request by setting the DMAT bit
|
||
|
in the IRDA CR3 register */
|
||
|
hirda->Instance->CR3 &= (uint16_t)~((uint16_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 receive process complete callback.
|
||
|
* @param hdma: DMA handle
|
||
|
* @retval None
|
||
|
*/
|
||
|
static void IRDA_DMAReceiveCplt(DMA_HandleTypeDef *hdma)
|
||
|
{
|
||
|
IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
|
||
|
/* DMA Normal mode */
|
||
|
if((hdma->Instance->CR & DMA_SxCR_CIRC) == 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->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.
|
||
|
* @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;
|
||
|
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;
|
||
|
hirda->Instance->DR = (uint16_t)(*tmp & (uint16_t)0x01FF);
|
||
|
if(hirda->Init.Parity == IRDA_PARITY_NONE)
|
||
|
{
|
||
|
hirda->pTxBuffPtr += 2;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
hirda->pTxBuffPtr += 1;
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
hirda->Instance->DR = (uint8_t)(*hirda->pTxBuffPtr++ & (uint8_t)0x00FF);
|
||
|
}
|
||
|
|
||
|
if(--hirda->TxXferCount == 0)
|
||
|
{
|
||
|
/* Disable the IRDA Transmit Data Register Empty Interrupt */
|
||
|
__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);
|
||
|
|
||
|
hirda->State = HAL_IRDA_STATE_READY;
|
||
|
}
|
||
|
|
||
|
HAL_IRDA_TxCpltCallback(hirda);
|
||
|
|
||
|
return HAL_OK;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* @brief Receives an amount of data in non blocking mode.
|
||
|
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains
|
||
|
* the configuration information for the specified IRDA module.
|
||
|
* @retval HAL status
|
||
|
*/
|
||
|
static HAL_StatusTypeDef IRDA_Receive_IT(IRDA_HandleTypeDef *hirda)
|
||
|
{
|
||
|
uint16_t* tmp;
|
||
|
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 & (uint16_t)0x01FF);
|
||
|
hirda->pRxBuffPtr += 2;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
*tmp = (uint16_t)(hirda->Instance->DR & (uint16_t)0x00FF);
|
||
|
hirda->pRxBuffPtr += 1;
|
||
|
}
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
if(hirda->Init.Parity == IRDA_PARITY_NONE)
|
||
|
{
|
||
|
*hirda->pRxBuffPtr++ = (uint8_t)(hirda->Instance->DR & (uint8_t)0x00FF);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
*hirda->pRxBuffPtr++ = (uint8_t)(hirda->Instance->DR & (uint8_t)0x007F);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
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)
|
||
|
{
|
||
|
uint32_t tmpreg = 0x00;
|
||
|
|
||
|
/* 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 */
|
||
|
hirda->Instance->CR2 &= (uint32_t)~((uint32_t)USART_CR2_STOP);
|
||
|
|
||
|
/*-------------------------- USART CR1 Configuration -----------------------*/
|
||
|
tmpreg = hirda->Instance->CR1;
|
||
|
|
||
|
/* Clear M, PCE, PS, TE and RE bits */
|
||
|
tmpreg &= (uint32_t)~((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | \
|
||
|
USART_CR1_RE));
|
||
|
|
||
|
/* Configure the USART Word Length, Parity and mode:
|
||
|
Set the M bits according to hirda->Init.WordLength value
|
||
|
Set PCE and PS bits according to hirda->Init.Parity value
|
||
|
Set TE and RE bits according to hirda->Init.Mode value */
|
||
|
tmpreg |= (uint32_t)hirda->Init.WordLength | hirda->Init.Parity | hirda->Init.Mode;
|
||
|
|
||
|
/* Write to USART CR1 */
|
||
|
hirda->Instance->CR1 = (uint32_t)tmpreg;
|
||
|
|
||
|
/*-------------------------- USART CR3 Configuration -----------------------*/
|
||
|
/* Clear CTSE and RTSE bits */
|
||
|
hirda->Instance->CR3 &= (uint32_t)~((uint32_t)(USART_CR3_RTSE | USART_CR3_CTSE));
|
||
|
|
||
|
/*-------------------------- USART BRR Configuration -----------------------*/
|
||
|
if((hirda->Instance == USART1) || (hirda->Instance == USART6))
|
||
|
{
|
||
|
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****/
|