/** | |
****************************************************************************** | |
* @file stm32f1xx_hal_irda.c | |
* @author MCD Application Team | |
* @version V1.0.4 | |
* @date 29-April-2016 | |
* @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 the USART pins (TX as alternate function pull-up, RX as alternate function Input). | |
(##) 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. | |
(+++) Configure the USARTx interrupt priority and enable the NVIC USART IRQ handle | |
(used for last byte sending completion detection in DMA non circular mode) | |
(#) 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 | |
(+) __HAL_IRDA_GET_IT_SOURCE: Check whether the specified IRDA interrupt has occurred or not | |
[..] | |
(@) You can refer to the IRDA HAL driver header file for more useful macros | |
@endverbatim | |
****************************************************************************** | |
* @attention | |
* | |
* <h2><center>© COPYRIGHT(c) 2016 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 "stm32f1xx_hal.h" | |
/** @addtogroup STM32F1xx_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_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 macros --------------------------------------------------------*/ | |
/* 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 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 | |
(++) 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 manuals (RM0008 for STM32F10Xxx MCUs and RM0041 for STM32F100xx MCUs)). | |
@endverbatim | |
* @{ | |
*/ | |
/* | |
Additionnal remark: 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 | | | |
+-------------------------------------------------------------+ | |
*/ | |
/** | |
* @brief Initializes the IRDA mode according to the specified | |
* parameters in the IRDA_InitTypeDef and create the associated handle. | |
* @param hirda: Pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_IRDA_Init(IRDA_HandleTypeDef *hirda) | |
{ | |
/* Check the IRDA handle allocation */ | |
if(hirda == NULL) | |
{ | |
return HAL_ERROR; | |
} | |
/* Check the IRDA instance parameters */ | |
assert_param(IS_IRDA_INSTANCE(hirda->Instance)); | |
/* Check the IRDA mode parameter in the IRDA handle */ | |
assert_param(IS_IRDA_POWERMODE(hirda->Init.IrDAMode)); | |
if(hirda->State == HAL_IRDA_STATE_RESET) | |
{ | |
/* Allocate lock resource and initialize it */ | |
hirda->Lock = HAL_UNLOCKED; | |
/* 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 == 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) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(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) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(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 respectively at the end of the transmit or Receive process | |
The HAL_IRDA_ErrorCallback() user callback will be executed when a communication | |
error is detected | |
(#) Blocking mode 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 tmp_state = 0; | |
tmp_state = hirda->State; | |
if((tmp_state == HAL_IRDA_STATE_READY) || (tmp_state == HAL_IRDA_STATE_BUSY_RX)) | |
{ | |
if((pData == NULL) || (Size == 0)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hirda); | |
hirda->ErrorCode = HAL_IRDA_ERROR_NONE; | |
if(hirda->State == HAL_IRDA_STATE_BUSY_RX) | |
{ | |
hirda->State = HAL_IRDA_STATE_BUSY_TX_RX; | |
} | |
else | |
{ | |
hirda->State = HAL_IRDA_STATE_BUSY_TX; | |
} | |
hirda->TxXferSize = Size; | |
hirda->TxXferCount = Size; | |
while(hirda->TxXferCount > 0) | |
{ | |
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 tmp_state = 0; | |
tmp_state = hirda->State; | |
if((tmp_state == HAL_IRDA_STATE_READY) || (tmp_state == HAL_IRDA_STATE_BUSY_TX)) | |
{ | |
if((pData == NULL) || (Size == 0)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hirda); | |
hirda->ErrorCode = HAL_IRDA_ERROR_NONE; | |
if(hirda->State == HAL_IRDA_STATE_BUSY_TX) | |
{ | |
hirda->State = HAL_IRDA_STATE_BUSY_TX_RX; | |
} | |
else | |
{ | |
hirda->State = HAL_IRDA_STATE_BUSY_RX; | |
} | |
hirda->RxXferSize = Size; | |
hirda->RxXferCount = Size; | |
/* 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_state = 0; | |
tmp_state = hirda->State; | |
if((tmp_state == HAL_IRDA_STATE_READY) || (tmp_state == HAL_IRDA_STATE_BUSY_RX)) | |
{ | |
if((pData == NULL) || (Size == 0)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hirda); | |
hirda->pTxBuffPtr = pData; | |
hirda->TxXferSize = Size; | |
hirda->TxXferCount = Size; | |
hirda->ErrorCode = HAL_IRDA_ERROR_NONE; | |
if(hirda->State == HAL_IRDA_STATE_BUSY_RX) | |
{ | |
hirda->State = HAL_IRDA_STATE_BUSY_TX_RX; | |
} | |
else | |
{ | |
hirda->State = HAL_IRDA_STATE_BUSY_TX; | |
} | |
/* 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_state = 0; | |
tmp_state = hirda->State; | |
if((tmp_state == HAL_IRDA_STATE_READY) || (tmp_state == HAL_IRDA_STATE_BUSY_TX)) | |
{ | |
if((pData == NULL) || (Size == 0)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hirda); | |
hirda->pRxBuffPtr = pData; | |
hirda->RxXferSize = Size; | |
hirda->RxXferCount = Size; | |
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 = 0; | |
uint32_t tmp_state = 0; | |
tmp_state = hirda->State; | |
if((tmp_state == HAL_IRDA_STATE_READY) || (tmp_state == HAL_IRDA_STATE_BUSY_RX)) | |
{ | |
if((pData == NULL) || (Size == 0)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hirda); | |
hirda->pTxBuffPtr = pData; | |
hirda->TxXferSize = Size; | |
hirda->TxXferCount = Size; | |
hirda->ErrorCode = HAL_IRDA_ERROR_NONE; | |
if(hirda->State == HAL_IRDA_STATE_BUSY_RX) | |
{ | |
hirda->State = HAL_IRDA_STATE_BUSY_TX_RX; | |
} | |
else | |
{ | |
hirda->State = HAL_IRDA_STATE_BUSY_TX; | |
} | |
/* Set the IRDA DMA transfer complete callback */ | |
hirda->hdmatx->XferCpltCallback = IRDA_DMATransmitCplt; | |
/* Set the IRDA DMA half 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); | |
/* 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 */ | |
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 tmp_state = 0; | |
tmp_state = hirda->State; | |
if((tmp_state == HAL_IRDA_STATE_READY) || (tmp_state == HAL_IRDA_STATE_BUSY_TX)) | |
{ | |
if((pData == NULL) || (Size == 0)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hirda); | |
hirda->pRxBuffPtr = pData; | |
hirda->RxXferSize = Size; | |
hirda->ErrorCode = HAL_IRDA_ERROR_NONE; | |
if(hirda->State == HAL_IRDA_STATE_BUSY_TX) | |
{ | |
hirda->State = HAL_IRDA_STATE_BUSY_TX_RX; | |
} | |
else | |
{ | |
hirda->State = HAL_IRDA_STATE_BUSY_RX; | |
} | |
/* Set the IRDA DMA transfer complete callback */ | |
hirda->hdmarx->XferCpltCallback = IRDA_DMAReceiveCplt; | |
/* Set the IRDA DMA half 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 IRDA DMA Tx request */ | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT); | |
} | |
else if(hirda->State == HAL_IRDA_STATE_BUSY_RX) | |
{ | |
/* Disable the IRDA DMA Rx request */ | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR); | |
} | |
else if (hirda->State == HAL_IRDA_STATE_BUSY_TX_RX) | |
{ | |
/* Disable the IRDA DMA Tx & Rx requests */ | |
CLEAR_BIT(hirda->Instance->CR3, (USART_CR3_DMAT | 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 IRDA 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 IRDA 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 IRDA DMA Tx & Rx request */ | |
SET_BIT(hirda->Instance->CR3, (USART_CR3_DMAT | 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 IRDA API under callbacks HAL_IRDA_TxCpltCallback() / HAL_IRDA_RxCpltCallback(): | |
when calling HAL_DMA_Abort() API the DMA TX/RX Transfer complete interrupt is generated | |
and the correspond call back is executed HAL_IRDA_TxCpltCallback() / HAL_IRDA_RxCpltCallback() | |
*/ | |
/* Disable the IRDA Tx/Rx DMA requests */ | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT); | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR); | |
/* Abort the IRDA DMA tx channel */ | |
if(hirda->hdmatx != NULL) | |
{ | |
HAL_DMA_Abort(hirda->hdmatx); | |
} | |
/* Abort the IRDA DMA rx channel */ | |
if(hirda->hdmarx != NULL) | |
{ | |
HAL_DMA_Abort(hirda->hdmarx); | |
} | |
hirda->State = HAL_IRDA_STATE_READY; | |
return HAL_OK; | |
} | |
/** | |
* @brief This function handles IRDA interrupt request. | |
* @param hirda: Pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @retval None | |
*/ | |
void HAL_IRDA_IRQHandler(IRDA_HandleTypeDef *hirda) | |
{ | |
uint32_t tmp_flag = 0, tmp_it_source = 0; | |
tmp_flag = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_PE); | |
tmp_it_source = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_PE); | |
/* IRDA parity error interrupt occurred -----------------------------------*/ | |
if((tmp_flag != RESET) && (tmp_it_source != RESET)) | |
{ | |
hirda->ErrorCode |= HAL_IRDA_ERROR_PE; | |
} | |
tmp_flag = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_FE); | |
tmp_it_source = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_ERR); | |
/* IRDA frame error interrupt occurred ------------------------------------*/ | |
if((tmp_flag != RESET) && (tmp_it_source != RESET)) | |
{ | |
hirda->ErrorCode |= HAL_IRDA_ERROR_FE; | |
} | |
tmp_flag = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_NE); | |
/* IRDA noise error interrupt occurred ------------------------------------*/ | |
if((tmp_flag != RESET) && (tmp_it_source != RESET)) | |
{ | |
hirda->ErrorCode |= HAL_IRDA_ERROR_NE; | |
} | |
tmp_flag = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_ORE); | |
/* IRDA Over-Run interrupt occurred ---------------------------------------*/ | |
if((tmp_flag != RESET) && (tmp_it_source != RESET)) | |
{ | |
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); | |
/* Clear all the error flag at once */ | |
__HAL_IRDA_CLEAR_PEFLAG(hirda); | |
/* Set the IRDA state ready to be able to start again the process */ | |
hirda->State = HAL_IRDA_STATE_READY; | |
HAL_IRDA_ErrorCallback(hirda); | |
} | |
tmp_flag = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_RXNE); | |
tmp_it_source = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_RXNE); | |
/* IRDA in mode Receiver --------------------------------------------------*/ | |
if((tmp_flag != RESET) && (tmp_it_source != RESET)) | |
{ | |
IRDA_Receive_IT(hirda); | |
} | |
tmp_flag = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_TXE); | |
tmp_it_source = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_TXE); | |
/* IRDA in mode Transmitter -----------------------------------------------*/ | |
if((tmp_flag != RESET) && (tmp_it_source != RESET)) | |
{ | |
IRDA_Transmit_IT(hirda); | |
} | |
tmp_flag = __HAL_IRDA_GET_FLAG(hirda, IRDA_FLAG_TC); | |
tmp_it_source = __HAL_IRDA_GET_IT_SOURCE(hirda, IRDA_IT_TC); | |
/* IRDA in mode Transmitter (transmission end) -----------------------------*/ | |
if((tmp_flag != RESET) && (tmp_it_source != 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) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(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) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(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) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(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) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(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) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(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 ( HAL_IS_BIT_CLR(hdma->Instance->CCR, DMA_CCR_CIRC) ) | |
{ | |
hirda->TxXferCount = 0; | |
/* Disable the DMA transfer for transmit request by setting the DMAT bit | |
in the IRDA CR3 register */ | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT); | |
/* Enable the IRDA Transmit Complete Interrupt */ | |
__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: 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 ( HAL_IS_BIT_CLR(hdma->Instance->CCR, DMA_CCR_CIRC) ) | |
{ | |
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 tmp_state = 0; | |
tmp_state = hirda->State; | |
if((tmp_state == HAL_IRDA_STATE_BUSY_TX) || (tmp_state == 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); | |
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 tmp_state = 0; | |
tmp_state = hirda->State; | |
if((tmp_state == HAL_IRDA_STATE_BUSY_RX) || (tmp_state == 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 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_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_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-associated USART registers setting : CR2 Configuration ------*/ | |
/* Clear STOP[13:12] bits */ | |
CLEAR_BIT(hirda->Instance->CR2, USART_CR2_STOP); | |
/*------- IRDA-associated USART registers setting : 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); | |
/*------- IRDA-associated USART registers setting : CR3 Configuration ------*/ | |
/* Clear CTSE and RTSE bits */ | |
CLEAR_BIT(hirda->Instance->CR3, (USART_CR3_RTSE | USART_CR3_CTSE)); | |
/*------- IRDA-associated USART registers setting : 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****/ |