/** | |
****************************************************************************** | |
* @file stm32f7xx_hal_irda.c | |
* @author MCD Application Team | |
* @version V1.1.1 | |
* @date 01-July-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 methods | |
* + IO operation methods | |
* + Peripheral Control methods | |
* | |
@verbatim | |
============================================================================== | |
##### How to use this driver ##### | |
============================================================================== | |
[..] | |
The IRDA HAL driver can be used as follows: | |
(#) Declare a IRDA_HandleTypeDef handle structure. | |
(#) Initialize the IRDA low level resources by implementing the HAL_IRDA_MspInit() API: | |
(##) Enable the USARTx interface clock. | |
(##) IRDA pins configuration: | |
(+++) Enable the clock for the IRDA GPIOs. | |
(+++) Configure these IRDA pins as alternate function pull-up. | |
(##) NVIC configuration if you need to use interrupt process (HAL_IRDA_Transmit_IT() | |
and HAL_IRDA_Receive_IT() APIs): | |
(+++) Configure the USARTx interrupt priority. | |
(+++) Enable the NVIC USART IRQ handle. | |
(##) DMA Configuration if you need to use DMA process (HAL_IRDA_Transmit_DMA() | |
and HAL_IRDA_Receive_DMA() APIs): | |
(+++) Declare a DMA handle structure for the Tx/Rx stream. | |
(+++) Enable the DMAx interface clock. | |
(+++) Configure the declared DMA handle structure with the required Tx/Rx parameters. | |
(+++) Configure the DMA Tx/Rx Stream. | |
(+++) Associate the initialized DMA handle to the IRDA DMA Tx/Rx handle. | |
(+++) Configure the priority and enable the NVIC for the transfer complete interrupt on the DMA Tx/Rx Stream. | |
(#) Program the Baud Rate, Word Length, Parity, IrDA Mode, Prescaler | |
and Mode(Receiver/Transmitter) in the hirda Init structure. | |
(#) Initialize the IRDA registers by calling the HAL_IRDA_Init() API: | |
(++) This API configures also the low level Hardware GPIO, CLOCK, CORTEX...etc) | |
by calling the customized HAL_IRDA_MspInit() API. | |
-@@- The specific IRDA interrupts (Transmission complete interrupt, | |
RXNE interrupt and Error Interrupts) will be managed using the macros | |
__HAL_IRDA_ENABLE_IT() and __HAL_IRDA_DISABLE_IT() inside the transmit and receive process. | |
(#) Three operation modes are available within this driver : | |
*** Polling mode IO operation *** | |
================================= | |
[..] | |
(+) Send an amount of data in blocking mode using HAL_IRDA_Transmit() | |
(+) Receive an amount of data in blocking mode using HAL_IRDA_Receive() | |
*** Interrupt mode IO operation *** | |
=================================== | |
[..] | |
(+) Send an amount of data in non blocking mode using HAL_IRDA_Transmit_IT() | |
(+) At transmission end of transfer HAL_IRDA_TxCpltCallback is executed and user can | |
add his own code by customization of function pointer HAL_IRDA_TxCpltCallback | |
(+) Receive an amount of data in non blocking mode using HAL_IRDA_Receive_IT() | |
(+) At reception end of transfer HAL_IRDA_RxCpltCallback is executed and user can | |
add his own code by customization of function pointer HAL_IRDA_RxCpltCallback | |
(+) In case of transfer Error, HAL_IRDA_ErrorCallback() function is executed and user can | |
add his own code by customization of function pointer HAL_IRDA_ErrorCallback | |
*** DMA mode IO operation *** | |
============================= | |
[..] | |
(+) Send an amount of data in non blocking mode (DMA) using HAL_IRDA_Transmit_DMA() | |
(+) At transmission end of transfer HAL_IRDA_TxCpltCallback is executed and user can | |
add his own code by customization of function pointer HAL_IRDA_TxCpltCallback | |
(+) Receive an amount of data in non blocking mode (DMA) using HAL_IRDA_Receive_DMA() | |
(+) At reception end of transfer HAL_IRDA_RxCpltCallback is executed and user can | |
add his own code by customization of function pointer HAL_IRDA_RxCpltCallback | |
(+) In case of transfer Error, HAL_IRDA_ErrorCallback() function is executed and user can | |
add his own code by customization of function pointer HAL_IRDA_ErrorCallback | |
*** IRDA HAL driver macros list *** | |
=================================== | |
[..] | |
Below the list of most used macros in IRDA HAL driver. | |
(+) __HAL_IRDA_ENABLE: Enable the IRDA peripheral | |
(+) __HAL_IRDA_DISABLE: Disable the IRDA peripheral | |
(+) __HAL_IRDA_GET_FLAG : Checks whether the specified IRDA flag is set or not | |
(+) __HAL_IRDA_CLEAR_FLAG : Clears the specified IRDA pending flag | |
(+) __HAL_IRDA_ENABLE_IT: Enables the specified IRDA interrupt | |
(+) __HAL_IRDA_DISABLE_IT: Disables the specified IRDA interrupt | |
(@) You can refer to the IRDA HAL driver header file for more useful macros | |
@endverbatim | |
****************************************************************************** | |
* @attention | |
* | |
* <h2><center>© COPYRIGHT(c) 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 "stm32f7xx_hal.h" | |
/** @addtogroup STM32F7xx_HAL_Driver | |
* @{ | |
*/ | |
/** @defgroup IRDA IRDA | |
* @brief HAL IRDA module driver | |
* @{ | |
*/ | |
#ifdef HAL_IRDA_MODULE_ENABLED | |
/* Private typedef -----------------------------------------------------------*/ | |
/* Private define ------------------------------------------------------------*/ | |
/** @addtogroup IRDA_Private_Constants | |
* @{ | |
*/ | |
#define TEACK_REACK_TIMEOUT 1000U | |
#define HAL_IRDA_TXDMA_TIMEOUTVALUE 22000U | |
#define IRDA_CR1_FIELDS ((uint32_t)(USART_CR1_M | USART_CR1_PCE \ | |
| USART_CR1_PS | USART_CR1_TE | USART_CR1_RE)) | |
/** | |
* @} | |
*/ | |
/* Private macro -------------------------------------------------------------*/ | |
/* Private variables ---------------------------------------------------------*/ | |
/* Private function prototypes -----------------------------------------------*/ | |
/** @addtogroup IRDA_Private_Functions | |
* @{ | |
*/ | |
static void IRDA_DMATransmitCplt(DMA_HandleTypeDef *hdma); | |
static void IRDA_DMATransmitHalfCplt(DMA_HandleTypeDef *hdma); | |
static void IRDA_DMAReceiveCplt(DMA_HandleTypeDef *hdma); | |
static void IRDA_DMAReceiveHalfCplt(DMA_HandleTypeDef *hdma); | |
static void IRDA_DMAError(DMA_HandleTypeDef *hdma); | |
static void IRDA_DMAAbortOnError(DMA_HandleTypeDef *hdma); | |
static void IRDA_EndTxTransfer(IRDA_HandleTypeDef *hirda); | |
static void IRDA_EndRxTransfer(IRDA_HandleTypeDef *hirda); | |
static void IRDA_SetConfig (IRDA_HandleTypeDef *hirda); | |
static HAL_StatusTypeDef IRDA_CheckIdleState(IRDA_HandleTypeDef *hirda); | |
static HAL_StatusTypeDef IRDA_WaitOnFlagUntilTimeout(IRDA_HandleTypeDef *hirda, uint32_t Flag, FlagStatus Status, uint32_t Tickstart, uint32_t Timeout); | |
static HAL_StatusTypeDef IRDA_Transmit_IT(IRDA_HandleTypeDef *hirda); | |
static HAL_StatusTypeDef IRDA_EndTransmit_IT(IRDA_HandleTypeDef *hirda); | |
static HAL_StatusTypeDef IRDA_Receive_IT(IRDA_HandleTypeDef *hirda); | |
/** | |
* @} | |
*/ | |
/* Exported functions --------------------------------------------------------*/ | |
/** @defgroup IRDA_Exported_Functions IrDA Exported Functions | |
* @{ | |
*/ | |
/** @defgroup IRDA_Exported_Functions_Group1 IrDA Initialization and de-initialization functions | |
* @brief Initialization and Configuration functions | |
* | |
@verbatim | |
=============================================================================== | |
##### Initialization and Configuration functions ##### | |
=============================================================================== | |
[..] | |
This subsection provides a set of functions allowing to initialize the USARTx or the UARTy | |
in IrDA mode. | |
(+) For the asynchronous mode only these parameters can be configured: | |
(++) BaudRate | |
(++) WordLength | |
(++) Parity: If the parity is enabled, then the MSB bit of the data written | |
in the data register is transmitted but is changed by the parity bit. | |
Depending on the frame length defined by the M bit (8-bits or 9-bits), | |
please refer to Reference manual for possible IRDA frame formats. | |
(++) Prescaler: A pulse of width less than two and greater than one PSC period(s) may or may | |
not be rejected. The receiver set up time should be managed by software. The IrDA physical layer | |
specification specifies a minimum of 10 ms delay between transmission and | |
reception (IrDA is a half duplex protocol). | |
(++) Mode: Receiver/transmitter modes | |
(++) IrDAMode: the IrDA can operate in the Normal mode or in the Low power mode. | |
[..] | |
The HAL_IRDA_Init() API follows IRDA configuration procedures (details for the procedures | |
are available in reference manual). | |
@endverbatim | |
* @{ | |
*/ | |
/** | |
* @brief Initializes the IRDA mode according to the specified | |
* parameters in the IRDA_InitTypeDef and create the associated handle. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_IRDA_Init(IRDA_HandleTypeDef *hirda) | |
{ | |
/* Check the IRDA handle allocation */ | |
if(hirda == NULL) | |
{ | |
return HAL_ERROR; | |
} | |
/* Check the USART/UART associated to the IRDA handle */ | |
assert_param(IS_IRDA_INSTANCE(hirda->Instance)); | |
if(hirda->gState == HAL_IRDA_STATE_RESET) | |
{ | |
/* Allocate lock resource and initialize it */ | |
hirda->Lock = HAL_UNLOCKED; | |
/* Init the low level hardware : GPIO, CLOCK, CORTEX */ | |
HAL_IRDA_MspInit(hirda); | |
} | |
hirda->gState = HAL_IRDA_STATE_BUSY; | |
/* Disable the Peripheral to update the configuration registers */ | |
__HAL_IRDA_DISABLE(hirda); | |
/* Set the IRDA Communication parameters */ | |
IRDA_SetConfig(hirda); | |
/* In IRDA mode, the following bits must be kept cleared: | |
- LINEN, STOP and CLKEN bits in the USART_CR2 register, | |
- SCEN and HDSEL bits in the USART_CR3 register.*/ | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR2_LINEN | USART_CR2_STOP | USART_CR2_CLKEN); | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_SCEN | USART_CR3_HDSEL); | |
/* set the UART/USART in IRDA mode */ | |
SET_BIT(hirda->Instance->CR3, USART_CR3_IREN); | |
/* Enable the Peripheral */ | |
__HAL_IRDA_ENABLE(hirda); | |
/* TEACK and/or REACK to check before moving hirda->State to Ready */ | |
return (IRDA_CheckIdleState(hirda)); | |
} | |
/** | |
* @brief DeInitializes the IRDA peripheral | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_IRDA_DeInit(IRDA_HandleTypeDef *hirda) | |
{ | |
/* Check the IRDA handle allocation */ | |
if(hirda == NULL) | |
{ | |
return HAL_ERROR; | |
} | |
/* Check the parameters */ | |
assert_param(IS_IRDA_INSTANCE(hirda->Instance)); | |
hirda->gState = HAL_IRDA_STATE_BUSY; | |
/* DeInit the low level hardware */ | |
HAL_IRDA_MspDeInit(hirda); | |
/* Disable the Peripheral */ | |
__HAL_IRDA_DISABLE(hirda); | |
hirda->ErrorCode = HAL_IRDA_ERROR_NONE; | |
hirda->gState = HAL_IRDA_STATE_RESET; | |
hirda->RxState = HAL_IRDA_STATE_RESET; | |
/* Release Lock */ | |
__HAL_UNLOCK(hirda); | |
return HAL_OK; | |
} | |
/** | |
* @brief IRDA MSP Init. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @retval None | |
*/ | |
__weak void HAL_IRDA_MspInit(IRDA_HandleTypeDef *hirda) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(hirda); | |
/* NOTE : This function Should not be modified, when the callback is needed, | |
the HAL_IRDA_MspInit could be implemented in the user file | |
*/ | |
} | |
/** | |
* @brief IRDA MSP DeInit. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @retval None | |
*/ | |
__weak void HAL_IRDA_MspDeInit(IRDA_HandleTypeDef *hirda) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(hirda); | |
/* NOTE : This function Should not be modified, when the callback is needed, | |
the HAL_IRDA_MspDeInit could be implemented in the user file | |
*/ | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup IRDA_Exported_Functions_Group2 IO operation functions | |
* @brief IRDA Transmit/Receive functions | |
* | |
@verbatim | |
=============================================================================== | |
##### IO operation functions ##### | |
=============================================================================== | |
This subsection provides a set of functions allowing to manage the IRDA data transfers. | |
[..] | |
IrDA is a half duplex communication protocol. If the Transmitter is busy, any data | |
on the IrDA receive line will be ignored by the IrDA decoder and if the Receiver | |
is busy, data on the TX from the USART to IrDA will not be encoded by IrDA. | |
While receiving data, transmission should be avoided as the data to be transmitted | |
could be corrupted. | |
(#) There are two modes of transfer: | |
(++) Blocking mode: the communication is performed in polling mode. | |
The HAL status of all data processing is returned by the same function | |
after finishing transfer. | |
(++) No-Blocking mode: the communication is performed using Interrupts | |
or DMA, these API's return the HAL status. | |
The end of the data processing will be indicated through the | |
dedicated IRDA IRQ when using Interrupt mode or the DMA IRQ when | |
using DMA mode. | |
The HAL_IRDA_TxCpltCallback(), HAL_IRDA_RxCpltCallback() user callbacks | |
will be executed respectively at the end of the Transmit or Receive process | |
The HAL_IRDA_ErrorCallback() user callback will be executed when a communication error is detected | |
(#) Blocking mode API's are : | |
(++) HAL_IRDA_Transmit() | |
(++) HAL_IRDA_Receive() | |
(#) Non-Blocking mode API's with Interrupt are : | |
(++) HAL_IRDA_Transmit_IT() | |
(++) HAL_IRDA_Receive_IT() | |
(++) HAL_IRDA_IRQHandler() | |
(++) IRDA_Transmit_IT() | |
(++) IRDA_Receive_IT() | |
(#) Non-Blocking mode functions with DMA are : | |
(++) HAL_IRDA_Transmit_DMA() | |
(++) HAL_IRDA_Receive_DMA() | |
(#) A set of Transfer Complete Callbacks are provided in No_Blocking mode: | |
(++) HAL_IRDA_TxCpltCallback() | |
(++) HAL_IRDA_RxCpltCallback() | |
(++) HAL_IRDA_ErrorCallback() | |
@endverbatim | |
* @{ | |
*/ | |
/** | |
* @brief Sends an amount of data in blocking mode. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @param pData: Pointer to data buffer | |
* @param Size: Amount of data to be sent | |
* @param Timeout: Specify timeout value | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_IRDA_Transmit(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size, uint32_t Timeout) | |
{ | |
uint16_t* tmp; | |
uint32_t tickstart = 0U; | |
/* Check that a Tx process is not already ongoing */ | |
if(hirda->gState == HAL_IRDA_STATE_READY) | |
{ | |
if((pData == NULL) || (Size == 0U)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hirda); | |
hirda->ErrorCode = HAL_IRDA_ERROR_NONE; | |
hirda->gState = HAL_IRDA_STATE_BUSY_TX; | |
/* Init tickstart for timeout managment*/ | |
tickstart = HAL_GetTick(); | |
hirda->TxXferSize = Size; | |
hirda->TxXferCount = Size; | |
while(hirda->TxXferCount > 0U) | |
{ | |
hirda->TxXferCount--; | |
if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK) | |
{ | |
return HAL_TIMEOUT; | |
} | |
if ((hirda->Init.WordLength == IRDA_WORDLENGTH_9B) && (hirda->Init.Parity == IRDA_PARITY_NONE)) | |
{ | |
tmp = (uint16_t*) pData; | |
hirda->Instance->TDR = (*tmp & (uint16_t)0x01FFU); | |
pData +=2; | |
} | |
else | |
{ | |
hirda->Instance->TDR = (*pData++ & (uint8_t)0xFFU); | |
} | |
} | |
if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_TC, RESET, tickstart, Timeout) != HAL_OK) | |
{ | |
return HAL_TIMEOUT; | |
} | |
/* At end of Tx process, restore hirda->gState to Ready */ | |
hirda->gState = HAL_IRDA_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hirda); | |
return HAL_OK; | |
} | |
else | |
{ | |
return HAL_BUSY; | |
} | |
} | |
/** | |
* @brief Receive an amount of data in blocking mode. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @param pData: Pointer to data buffer | |
* @param Size: Amount of data to be received | |
* @param Timeout: Specify timeout value | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_IRDA_Receive(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size, uint32_t Timeout) | |
{ | |
uint16_t* tmp; | |
uint16_t uhMask; | |
uint32_t tickstart = 0U; | |
/* Check that a Rx process is not already ongoing */ | |
if(hirda->RxState == HAL_IRDA_STATE_READY) | |
{ | |
if((pData == NULL) || (Size == 0U)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hirda); | |
hirda->ErrorCode = HAL_IRDA_ERROR_NONE; | |
hirda->RxState = HAL_IRDA_STATE_BUSY_RX; | |
/* Init tickstart for timeout managment*/ | |
tickstart = HAL_GetTick(); | |
hirda->RxXferSize = Size; | |
hirda->RxXferCount = Size; | |
/* Computation of the mask to apply to the RDR register | |
of the UART associated to the IRDA */ | |
IRDA_MASK_COMPUTATION(hirda); | |
uhMask = hirda->Mask; | |
/* Check data remaining to be received */ | |
while(hirda->RxXferCount > 0U) | |
{ | |
hirda->RxXferCount--; | |
if(IRDA_WaitOnFlagUntilTimeout(hirda, IRDA_FLAG_RXNE, RESET, tickstart, Timeout) != HAL_OK) | |
{ | |
return HAL_TIMEOUT; | |
} | |
if ((hirda->Init.WordLength == IRDA_WORDLENGTH_9B) && (hirda->Init.Parity == IRDA_PARITY_NONE)) | |
{ | |
tmp = (uint16_t*) pData ; | |
*tmp = (uint16_t)(hirda->Instance->RDR & uhMask); | |
pData +=2; | |
} | |
else | |
{ | |
*pData++ = (uint8_t)(hirda->Instance->RDR & (uint8_t)uhMask); | |
} | |
} | |
/* At end of Rx process, restore hirda->RxState to Ready */ | |
hirda->RxState = HAL_IRDA_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hirda); | |
return HAL_OK; | |
} | |
else | |
{ | |
return HAL_BUSY; | |
} | |
} | |
/** | |
* @brief Send an amount of data in non blocking mode. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @param pData: Pointer to data buffer | |
* @param Size: Amount of data to be sent | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_IRDA_Transmit_IT(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size) | |
{ | |
/* Check that a Tx process is not already ongoing */ | |
if(hirda->gState == HAL_IRDA_STATE_READY) | |
{ | |
if((pData == NULL) || (Size == 0U)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hirda); | |
hirda->pTxBuffPtr = pData; | |
hirda->TxXferSize = Size; | |
hirda->TxXferCount = Size; | |
hirda->ErrorCode = HAL_IRDA_ERROR_NONE; | |
hirda->gState = HAL_IRDA_STATE_BUSY_TX; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hirda); | |
/* Enable the IRDA Transmit Complete Interrupt */ | |
SET_BIT(hirda->Instance->CR1, USART_CR1_TCIE); | |
return HAL_OK; | |
} | |
else | |
{ | |
return HAL_BUSY; | |
} | |
} | |
/** | |
* @brief Receives an amount of data in non blocking mode. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @param pData: Pointer to data buffer | |
* @param Size: Amount of data to be received | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_IRDA_Receive_IT(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size) | |
{ | |
/* Check that a Rx process is not already ongoing */ | |
if(hirda->RxState == HAL_IRDA_STATE_READY) | |
{ | |
if((pData == NULL) || (Size == 0U)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hirda); | |
hirda->pRxBuffPtr = pData; | |
hirda->RxXferSize = Size; | |
hirda->RxXferCount = Size; | |
/* Computation of the mask to apply to the RDR register | |
of the UART associated to the IRDA */ | |
IRDA_MASK_COMPUTATION(hirda); | |
hirda->ErrorCode = HAL_IRDA_ERROR_NONE; | |
hirda->RxState = HAL_IRDA_STATE_BUSY_RX; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hirda); | |
/* Enable the IRDA Parity Error Interrupt */ | |
SET_BIT(hirda->Instance->CR1, USART_CR1_PEIE); | |
/* Enable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */ | |
SET_BIT(hirda->Instance->CR3, USART_CR3_EIE); | |
/* Enable the IRDA Data Register not empty Interrupt */ | |
SET_BIT(hirda->Instance->CR1, USART_CR1_RXNEIE); | |
return HAL_OK; | |
} | |
else | |
{ | |
return HAL_BUSY; | |
} | |
} | |
/** | |
* @brief Sends an amount of data in non blocking mode. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @param pData: Pointer to data buffer | |
* @param Size: Amount of data to be sent | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_IRDA_Transmit_DMA(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size) | |
{ | |
uint32_t *tmp; | |
/* Check that a Tx process is not already ongoing */ | |
if(hirda->gState == HAL_IRDA_STATE_READY) | |
{ | |
if((pData == NULL) || (Size == 0U)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hirda); | |
hirda->pTxBuffPtr = pData; | |
hirda->TxXferSize = Size; | |
hirda->TxXferCount = Size; | |
hirda->ErrorCode = HAL_IRDA_ERROR_NONE; | |
hirda->gState = HAL_IRDA_STATE_BUSY_TX; | |
/* Set the IRDA DMA transfer complete callback */ | |
hirda->hdmatx->XferCpltCallback = IRDA_DMATransmitCplt; | |
/* Set the IRDA DMA half transfer complete callback */ | |
hirda->hdmatx->XferHalfCpltCallback = IRDA_DMATransmitHalfCplt; | |
/* Set the DMA error callback */ | |
hirda->hdmatx->XferErrorCallback = IRDA_DMAError; | |
/* Set the DMA abort callback */ | |
hirda->hdmatx->XferAbortCallback = NULL; | |
/* Enable the IRDA transmit DMA channel */ | |
tmp = (uint32_t*)&pData; | |
HAL_DMA_Start_IT(hirda->hdmatx, *(uint32_t*)tmp, (uint32_t)&hirda->Instance->TDR, Size); | |
/* Clear the TC flag in the SR register by writing 0 to it */ | |
__HAL_IRDA_CLEAR_IT(hirda, IRDA_FLAG_TC); | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hirda); | |
/* Enable the DMA transfer for transmit request by setting the DMAT bit | |
in the IRDA CR3 register */ | |
SET_BIT(hirda->Instance->CR3, USART_CR3_DMAT); | |
return HAL_OK; | |
} | |
else | |
{ | |
return HAL_BUSY; | |
} | |
} | |
/** | |
* @brief Receives an amount of data in non blocking mode. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @param pData: Pointer to data buffer | |
* @param Size: Amount of data to be received | |
* @note When the IRDA parity is enabled (PCE = 1) the data received contain the parity bit. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_IRDA_Receive_DMA(IRDA_HandleTypeDef *hirda, uint8_t *pData, uint16_t Size) | |
{ | |
uint32_t *tmp; | |
/* Check that a Rx process is not already ongoing */ | |
if(hirda->RxState == HAL_IRDA_STATE_READY) | |
{ | |
if((pData == NULL) || (Size == 0U)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hirda); | |
hirda->pRxBuffPtr = pData; | |
hirda->RxXferSize = Size; | |
hirda->ErrorCode = HAL_IRDA_ERROR_NONE; | |
hirda->RxState = HAL_IRDA_STATE_BUSY_RX; | |
/* Set the IRDA DMA transfer complete callback */ | |
hirda->hdmarx->XferCpltCallback = IRDA_DMAReceiveCplt; | |
/* Set the IRDA DMA half transfer complete callback */ | |
hirda->hdmarx->XferHalfCpltCallback = IRDA_DMAReceiveHalfCplt; | |
/* Set the DMA error callback */ | |
hirda->hdmarx->XferErrorCallback = IRDA_DMAError; | |
/* Set the DMA abort callback */ | |
hirda->hdmarx->XferAbortCallback = NULL; | |
/* Enable the DMA channel */ | |
tmp = (uint32_t*)&pData; | |
HAL_DMA_Start_IT(hirda->hdmarx, (uint32_t)&hirda->Instance->RDR, *(uint32_t*)tmp, Size); | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hirda); | |
/* Enable the IRDA Parity Error Interrupt */ | |
SET_BIT(hirda->Instance->CR1, USART_CR1_PEIE); | |
/* Enable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */ | |
SET_BIT(hirda->Instance->CR3, USART_CR3_EIE); | |
/* Enable the DMA transfer for the receiver request by setting the DMAR bit | |
in the USART CR3 register */ | |
SET_BIT(hirda->Instance->CR3, USART_CR3_DMAR); | |
return HAL_OK; | |
} | |
else | |
{ | |
return HAL_BUSY; | |
} | |
} | |
/** | |
* @brief Pauses the DMA Transfer. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_IRDA_DMAPause(IRDA_HandleTypeDef *hirda) | |
{ | |
/* Process Locked */ | |
__HAL_LOCK(hirda); | |
if((hirda->gState == HAL_IRDA_STATE_BUSY_TX)&& | |
(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT))) | |
{ | |
/* Disable the UART DMA Tx request */ | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT); | |
} | |
if((hirda->RxState == HAL_IRDA_STATE_BUSY_RX)&& | |
(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR))) | |
{ | |
/* Disable PE and ERR (Frame error, noise error, overrun error) interrupts */ | |
CLEAR_BIT(hirda->Instance->CR1, USART_CR1_PEIE); | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE); | |
/* Disable the UART DMA Rx request */ | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR); | |
} | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hirda); | |
return HAL_OK; | |
} | |
/** | |
* @brief Resumes the DMA Transfer. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified UART module. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_IRDA_DMAResume(IRDA_HandleTypeDef *hirda) | |
{ | |
/* Process Locked */ | |
__HAL_LOCK(hirda); | |
if(hirda->gState == HAL_IRDA_STATE_BUSY_TX) | |
{ | |
/* Enable the UART DMA Tx request */ | |
SET_BIT(hirda->Instance->CR3, USART_CR3_DMAT); | |
} | |
if(hirda->RxState == HAL_IRDA_STATE_BUSY_RX) | |
{ | |
/* Clear the Overrun flag before resuming the Rx transfer*/ | |
__HAL_IRDA_CLEAR_IT(hirda, IRDA_CLEAR_OREF); | |
/* Reenable PE and ERR (Frame error, noise error, overrun error) interrupts */ | |
SET_BIT(hirda->Instance->CR1, USART_CR1_PEIE); | |
SET_BIT(hirda->Instance->CR3, USART_CR3_EIE); | |
/* Enable the UART DMA Rx request */ | |
SET_BIT(hirda->Instance->CR3, USART_CR3_DMAR); | |
} | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hirda); | |
return HAL_OK; | |
} | |
/** | |
* @brief Stops the DMA Transfer. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified UART module. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_IRDA_DMAStop(IRDA_HandleTypeDef *hirda) | |
{ | |
/* The Lock is not implemented on this API to allow the user application | |
to call the HAL IRDA API under callbacks HAL_IRDA_TxCpltCallback() / HAL_IRDA_RxCpltCallback() / | |
HAL_IRDA_TxHalfCpltCallback / HAL_IRDA_RxHalfCpltCallback: | |
indeed, when HAL_DMA_Abort() API is called, the DMA TX/RX Transfer or Half Transfer complete | |
interrupt is generated if the DMA transfer interruption occurs at the middle or at the end of | |
the stream and the corresponding call back is executed. */ | |
/* Stop IRDA DMA Tx request if ongoing */ | |
if ((hirda->gState == HAL_IRDA_STATE_BUSY_TX) && | |
(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT))) | |
{ | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT); | |
/* Abort the IRDA DMA Tx channel */ | |
if(hirda->hdmatx != NULL) | |
{ | |
HAL_DMA_Abort(hirda->hdmatx); | |
} | |
IRDA_EndTxTransfer(hirda); | |
} | |
/* Stop IRDA DMA Rx request if ongoing */ | |
if ((hirda->RxState == HAL_IRDA_STATE_BUSY_RX) && | |
(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR))) | |
{ | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR); | |
/* Abort the IRDA DMA Rx channel */ | |
if(hirda->hdmarx != NULL) | |
{ | |
HAL_DMA_Abort(hirda->hdmarx); | |
} | |
IRDA_EndRxTransfer(hirda); | |
} | |
return HAL_OK; | |
} | |
/** | |
* @brief DMA IRDA communication abort callback, when call by HAL services on Error | |
* (To be called at end of DMA Abort procedure following error occurrence). | |
* @param hdma: DMA handle. | |
* @retval None | |
*/ | |
static void IRDA_DMAAbortOnError(DMA_HandleTypeDef *hdma) | |
{ | |
IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; | |
hirda->RxXferCount = 0U; | |
hirda->TxXferCount = 0U; | |
HAL_IRDA_ErrorCallback(hirda); | |
} | |
/** | |
* @brief This function handles IRDA interrupt request. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @retval None | |
*/ | |
void HAL_IRDA_IRQHandler(IRDA_HandleTypeDef *hirda) | |
{ | |
uint32_t isrflags, cr1its, cr3its, errorflags; | |
isrflags = READ_REG(hirda->Instance->ISR); | |
cr1its = READ_REG(hirda->Instance->CR1); | |
cr3its = READ_REG(hirda->Instance->CR3); | |
/* If no error occurs */ | |
errorflags = (isrflags & (uint32_t)(USART_ISR_PE | USART_ISR_FE | USART_ISR_ORE | USART_ISR_NE)); | |
if (errorflags == RESET) | |
{ | |
/* IRDA in mode Receiver ---------------------------------------------------*/ | |
if(((isrflags & USART_ISR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET)) | |
{ | |
IRDA_Receive_IT(hirda); | |
/* Clear RXNE interrupt flag */ | |
__HAL_IRDA_SEND_REQ(hirda, IRDA_RXDATA_FLUSH_REQUEST); | |
} | |
} | |
/* If some errors occur */ | |
if((errorflags != RESET) && ((cr3its & (USART_CR3_EIE | USART_CR1_PEIE)) != RESET)) | |
{ | |
/* IRDA parity error interrupt occurred -------------------------------------*/ | |
if(((isrflags & USART_ISR_PE) != RESET) && ((cr1its & USART_CR1_PEIE) != RESET)) | |
{ | |
__HAL_IRDA_CLEAR_IT(hirda, IRDA_CLEAR_PEF); | |
hirda->ErrorCode |= HAL_IRDA_ERROR_PE; | |
} | |
/* IRDA frame error interrupt occurred --------------------------------------*/ | |
if(((isrflags & USART_ISR_FE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET)) | |
{ | |
__HAL_IRDA_CLEAR_IT(hirda, IRDA_CLEAR_FEF); | |
hirda->ErrorCode |= HAL_IRDA_ERROR_FE; | |
} | |
/* IRDA noise error interrupt occurred --------------------------------------*/ | |
if(((isrflags & USART_ISR_NE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET)) | |
{ | |
__HAL_IRDA_CLEAR_IT(hirda, IRDA_CLEAR_NEF); | |
hirda->ErrorCode |= HAL_IRDA_ERROR_NE; | |
} | |
/* IRDA Over-Run interrupt occurred -----------------------------------------*/ | |
if(((isrflags & USART_ISR_ORE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET)) | |
{ | |
__HAL_IRDA_CLEAR_IT(hirda, IRDA_CLEAR_OREF); | |
hirda->ErrorCode |= HAL_IRDA_ERROR_ORE; | |
} | |
/* Call IRDA Error Call back function if need be --------------------------*/ | |
if(hirda->ErrorCode != HAL_IRDA_ERROR_NONE) | |
{ | |
/* IRDA in mode Receiver ---------------------------------------------------*/ | |
if(((isrflags & USART_ISR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET)) | |
{ | |
IRDA_Receive_IT(hirda); | |
} | |
/* If Overrun error occurs, or if any error occurs in DMA mode reception, | |
consider error as blocking */ | |
if (((hirda->ErrorCode & HAL_UART_ERROR_ORE) != RESET) || | |
(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR))) | |
{ | |
/* Blocking error : transfer is aborted | |
Set the IRDA state ready to be able to start again the process, | |
Disable Rx Interrupts, and disable Rx DMA request, if ongoing */ | |
IRDA_EndRxTransfer(hirda); | |
/* Disable the IRDA DMA Rx request if enabled */ | |
if (HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR)) | |
{ | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR); | |
/* Abort the IRDA DMA Rx channel */ | |
if(hirda->hdmarx != NULL) | |
{ | |
/* Set the IRDA DMA Abort callback : | |
will lead to call HAL_IRDA_ErrorCallback() at end of DMA abort procedure */ | |
hirda->hdmarx->XferAbortCallback = IRDA_DMAAbortOnError; | |
/* Abort DMA RX */ | |
if(HAL_DMA_Abort_IT(hirda->hdmarx) != HAL_OK) | |
{ | |
/* Call Directly hirda->hdmarx->XferAbortCallback function in case of error */ | |
hirda->hdmarx->XferAbortCallback(hirda->hdmarx); | |
} | |
} | |
else | |
{ | |
/* Call user error callback */ | |
HAL_IRDA_ErrorCallback(hirda); | |
} | |
} | |
else | |
{ | |
/* Call user error callback */ | |
HAL_IRDA_ErrorCallback(hirda); | |
} | |
} | |
else | |
{ | |
/* Non Blocking error : transfer could go on. | |
Error is notified to user through user error callback */ | |
HAL_IRDA_ErrorCallback(hirda); | |
hirda->ErrorCode = HAL_IRDA_ERROR_NONE; | |
} | |
} | |
return; | |
} /* End if some error occurs */ | |
/* IRDA in mode Transmitter ------------------------------------------------*/ | |
if(((isrflags & USART_ISR_TXE) != RESET) && ((cr1its & USART_CR1_TXEIE) != RESET)) | |
{ | |
IRDA_Transmit_IT(hirda); | |
return; | |
} | |
/* IRDA in mode Transmitter (transmission end) -----------------------------*/ | |
if(((isrflags & USART_ISR_TC) != RESET) && ((cr1its & USART_CR1_TCIE) != RESET)) | |
{ | |
IRDA_EndTransmit_IT(hirda); | |
return; | |
} | |
} | |
/** | |
* @brief End ongoing Tx transfer on IRDA peripheral (following error detection or Transmit completion). | |
* @param hirda: IRDA handle. | |
* @retval None | |
*/ | |
static void IRDA_EndTxTransfer(IRDA_HandleTypeDef *hirda) | |
{ | |
/* Disable TXEIE and TCIE interrupts */ | |
CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE)); | |
/* At end of Tx process, restore hirda->gState to Ready */ | |
hirda->gState = HAL_IRDA_STATE_READY; | |
} | |
/** | |
* @brief End ongoing Rx transfer on IRDA peripheral (following error detection or Reception completion). | |
* @param hirda: IRDA handle. | |
* @retval None | |
*/ | |
static void IRDA_EndRxTransfer(IRDA_HandleTypeDef *hirda) | |
{ | |
/* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ | |
CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE)); | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE); | |
/* At end of Rx process, restore huart->RxState to Ready */ | |
hirda->RxState = HAL_IRDA_STATE_READY; | |
} | |
/** | |
* @brief Tx Transfer complete callbacks. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @retval None | |
*/ | |
__weak void HAL_IRDA_TxHalfCpltCallback(IRDA_HandleTypeDef *hirda) | |
{ | |
/* 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 Tx Half Transfer completed callbacks. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified USART module. | |
* @retval None | |
*/ | |
__weak void HAL_IRDA_TxCpltCallback(IRDA_HandleTypeDef *hirda) | |
{ | |
/* 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 Rx Transfer complete callbacks. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @retval None | |
*/ | |
__weak void HAL_IRDA_RxHalfCpltCallback(IRDA_HandleTypeDef *hirda) | |
{ | |
/* 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 Rx Half Transfer complete callbacks. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @retval None | |
*/ | |
__weak void HAL_IRDA_RxCpltCallback(IRDA_HandleTypeDef *hirda) | |
{ | |
/* 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 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 Control functions | |
* @brief IRDA control functions | |
* | |
@verbatim | |
=============================================================================== | |
##### Peripheral Control functions ##### | |
=============================================================================== | |
[..] | |
This subsection provides a set of functions allowing to control the IRDA. | |
(+) HAL_IRDA_GetState() API can be helpful to check in run-time the state of the IRDA peripheral. | |
(+) IRDA_SetConfig() API is used to configure the IRDA communications parameters. | |
@endverbatim | |
* @{ | |
*/ | |
/** | |
* @brief Returns the IRDA state. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @retval HAL state | |
*/ | |
HAL_IRDA_StateTypeDef HAL_IRDA_GetState(IRDA_HandleTypeDef *hirda) | |
{ | |
uint32_t temp1 = 0x00U, temp2 = 0x00U; | |
temp1 = hirda->gState; | |
temp2 = hirda->RxState; | |
return (HAL_IRDA_StateTypeDef)(temp1 | temp2); | |
} | |
/** | |
* @brief Return the IRDA error code | |
* @param hirda : pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA. | |
* @retval IRDA Error Code | |
*/ | |
uint32_t HAL_IRDA_GetError(IRDA_HandleTypeDef *hirda) | |
{ | |
uint32_t temp1 = 0x00U, temp2 = 0x00U; | |
temp1 = hirda->gState; | |
temp2 = hirda->RxState; | |
return (HAL_IRDA_StateTypeDef)(temp1 | temp2); | |
} | |
/** | |
* @} | |
*/ | |
/** | |
* @brief Configure the IRDA peripheral | |
* @param hirda: irda handle | |
* @retval None | |
*/ | |
static void IRDA_SetConfig(IRDA_HandleTypeDef *hirda) | |
{ | |
uint32_t tmpreg = 0x00000000U; | |
uint32_t clocksource = 0x00000000U; | |
/* Check the communication parameters */ | |
assert_param(IS_IRDA_BAUDRATE(hirda->Init.BaudRate)); | |
assert_param(IS_IRDA_WORD_LENGTH(hirda->Init.WordLength)); | |
assert_param(IS_IRDA_PARITY(hirda->Init.Parity)); | |
assert_param(IS_IRDA_TX_RX_MODE(hirda->Init.Mode)); | |
assert_param(IS_IRDA_PRESCALER(hirda->Init.Prescaler)); | |
assert_param(IS_IRDA_POWERMODE(hirda->Init.PowerMode)); | |
/*-------------------------- USART CR1 Configuration -----------------------*/ | |
/* Configure the IRDA Word Length, Parity and transfer Mode: | |
Set the M bits according to hirda->Init.WordLength value | |
Set PCE and PS bits according to hirda->Init.Parity value | |
Set TE and RE bits according to hirda->Init.Mode value */ | |
tmpreg = (uint32_t)hirda->Init.WordLength | hirda->Init.Parity | hirda->Init.Mode ; | |
MODIFY_REG(hirda->Instance->CR1, IRDA_CR1_FIELDS, tmpreg); | |
/*-------------------------- USART CR3 Configuration -----------------------*/ | |
MODIFY_REG(hirda->Instance->CR3, USART_CR3_IRLP, hirda->Init.PowerMode); | |
/*-------------------------- USART GTPR Configuration ----------------------*/ | |
MODIFY_REG(hirda->Instance->GTPR, (uint32_t)USART_GTPR_PSC, hirda->Init.Prescaler); | |
/*-------------------------- USART BRR Configuration -----------------------*/ | |
IRDA_GETCLOCKSOURCE(hirda, clocksource); | |
switch (clocksource) | |
{ | |
case IRDA_CLOCKSOURCE_PCLK1: | |
hirda->Instance->BRR = (uint16_t)((HAL_RCC_GetPCLK1Freq() + (hirda->Init.BaudRate/2))/ hirda->Init.BaudRate); | |
break; | |
case IRDA_CLOCKSOURCE_PCLK2: | |
hirda->Instance->BRR = (uint16_t)((HAL_RCC_GetPCLK2Freq() + (hirda->Init.BaudRate/2))/ hirda->Init.BaudRate); | |
break; | |
case IRDA_CLOCKSOURCE_HSI: | |
hirda->Instance->BRR = (uint16_t)((HSI_VALUE + (hirda->Init.BaudRate/2))/ hirda->Init.BaudRate); | |
break; | |
case IRDA_CLOCKSOURCE_SYSCLK: | |
hirda->Instance->BRR = (uint16_t)((HAL_RCC_GetSysClockFreq() + (hirda->Init.BaudRate/2))/ hirda->Init.BaudRate); | |
break; | |
case IRDA_CLOCKSOURCE_LSE: | |
hirda->Instance->BRR = (uint16_t)((LSE_VALUE + (hirda->Init.BaudRate/2))/ hirda->Init.BaudRate); | |
break; | |
default: | |
break; | |
} | |
} | |
/** | |
* @brief Check the IRDA Idle State | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @retval HAL status | |
*/ | |
static HAL_StatusTypeDef IRDA_CheckIdleState(IRDA_HandleTypeDef *hirda) | |
{ | |
uint32_t tickstart = 0U; | |
/* Initialize the IRDA ErrorCode */ | |
hirda->ErrorCode = HAL_IRDA_ERROR_NONE; | |
/* Init tickstart for timeout managment*/ | |
tickstart = HAL_GetTick(); | |
/* Check if the Transmitter is enabled */ | |
if((hirda->Instance->CR1 & USART_CR1_TE) == USART_CR1_TE) | |
{ | |
/* Wait until TEACK flag is set */ | |
if(IRDA_WaitOnFlagUntilTimeout(hirda, USART_ISR_TEACK, RESET, tickstart, TEACK_REACK_TIMEOUT) != HAL_OK) | |
{ | |
return HAL_TIMEOUT; | |
} | |
} | |
/* Check if the Receiver is enabled */ | |
if((hirda->Instance->CR1 & USART_CR1_RE) == USART_CR1_RE) | |
{ | |
if(IRDA_WaitOnFlagUntilTimeout(hirda, USART_ISR_REACK, RESET, tickstart, TEACK_REACK_TIMEOUT) != HAL_OK) | |
{ | |
return HAL_TIMEOUT; | |
} | |
} | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hirda); | |
/* Initialize the IRDA state*/ | |
hirda->gState= HAL_IRDA_STATE_READY; | |
hirda->RxState= HAL_IRDA_STATE_READY; | |
return HAL_OK; | |
} | |
/** | |
* @brief This function handles IRDA Communication Timeout. | |
* @param hirda pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @param Flag specifies the IRDA flag to check. | |
* @param Status The new Flag status (SET or RESET). | |
* @param Tickstart Tick start value | |
* @param Timeout Timeout duration | |
* @retval HAL status | |
*/ | |
static HAL_StatusTypeDef IRDA_WaitOnFlagUntilTimeout(IRDA_HandleTypeDef *hirda, uint32_t Flag, FlagStatus Status, uint32_t Tickstart, uint32_t Timeout) | |
{ | |
/* Wait until flag is set */ | |
while((__HAL_IRDA_GET_FLAG(hirda, Flag) ? SET : RESET) == Status) | |
{ | |
/* Check for the Timeout */ | |
if(Timeout != HAL_MAX_DELAY) | |
{ | |
if((Timeout == 0)||((HAL_GetTick() - Tickstart ) > Timeout)) | |
{ | |
/* Disable TXE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts for the interrupt process */ | |
CLEAR_BIT(hirda->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE)); | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE); | |
hirda->gState= HAL_IRDA_STATE_READY; | |
hirda->RxState= HAL_IRDA_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hirda); | |
return HAL_TIMEOUT; | |
} | |
} | |
} | |
return HAL_OK; | |
} | |
/** | |
* @brief Send an amount of data in non blocking mode. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @retval HAL status | |
*/ | |
static HAL_StatusTypeDef IRDA_Transmit_IT(IRDA_HandleTypeDef *hirda) | |
{ | |
uint16_t* tmp; | |
/* Check that a Tx process is ongoing */ | |
if(hirda->gState == HAL_IRDA_STATE_BUSY_TX) | |
{ | |
if(hirda->Init.WordLength == IRDA_WORDLENGTH_9B) | |
{ | |
tmp = (uint16_t*) hirda->pTxBuffPtr; | |
hirda->Instance->RDR = (uint16_t)(*tmp & (uint16_t)0x01FFU); | |
if(hirda->Init.Parity == IRDA_PARITY_NONE) | |
{ | |
hirda->pTxBuffPtr += 2U; | |
} | |
else | |
{ | |
hirda->pTxBuffPtr += 1U; | |
} | |
} | |
else | |
{ | |
hirda->Instance->RDR = (uint8_t)(*hirda->pTxBuffPtr++ & (uint8_t)0x00FFU); | |
} | |
if(--hirda->TxXferCount == 0U) | |
{ | |
/* Disable the IRDA Transmit Data Register Empty Interrupt */ | |
CLEAR_BIT(hirda->Instance->CR1, USART_CR1_TXEIE); | |
/* Enable the IRDA Transmit Complete Interrupt */ | |
SET_BIT(hirda->Instance->CR1, USART_CR1_TCIE); | |
} | |
return HAL_OK; | |
} | |
else | |
{ | |
return HAL_BUSY; | |
} | |
} | |
/** | |
* @brief Wraps up transmission in non blocking mode. | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @retval HAL status | |
*/ | |
static HAL_StatusTypeDef IRDA_EndTransmit_IT(IRDA_HandleTypeDef *hirda) | |
{ | |
/* Disable the IRDA Transmit Complete Interrupt */ | |
CLEAR_BIT(hirda->Instance->CR1, USART_CR1_TCIE); | |
/* Disable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */ | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE); | |
/* Tx process is ended, restore hirda->gState to Ready */ | |
hirda->gState = HAL_IRDA_STATE_READY; | |
HAL_IRDA_TxCpltCallback(hirda); | |
return HAL_OK; | |
} | |
/** | |
* @brief Receive an amount of data in non blocking mode. | |
* Function called under interruption only, once | |
* interruptions have been enabled by HAL_IRDA_Receive_IT() | |
* @param hirda: pointer to a IRDA_HandleTypeDef structure that contains | |
* the configuration information for the specified IRDA module. | |
* @retval HAL status | |
*/ | |
static HAL_StatusTypeDef IRDA_Receive_IT(IRDA_HandleTypeDef *hirda) | |
{ | |
uint16_t* tmp; | |
uint16_t uhdata; | |
uint16_t uhMask = hirda->Mask; | |
if(hirda->RxState == HAL_IRDA_STATE_BUSY_RX) | |
{ | |
uhdata = (uint16_t) READ_REG(hirda->Instance->RDR); | |
if ((hirda->Init.WordLength == IRDA_WORDLENGTH_9B) && (hirda->Init.Parity == IRDA_PARITY_NONE)) | |
{ | |
tmp = (uint16_t*) hirda->pRxBuffPtr ; | |
*tmp = (uint16_t)(uhdata & uhMask); | |
hirda->pRxBuffPtr +=2U; | |
} | |
else | |
{ | |
*hirda->pRxBuffPtr++ = (uint8_t)(uhdata & (uint8_t)uhMask); | |
} | |
if(--hirda->RxXferCount == 0U) | |
{ | |
CLEAR_BIT(hirda->Instance->CR1, USART_CR1_RXNEIE); | |
/* Disable the IRDA Parity Error Interrupt */ | |
CLEAR_BIT(hirda->Instance->CR1, USART_CR1_PEIE); | |
/* Disable the IRDA Error Interrupt: (Frame error, noise error, overrun error) */ | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE); | |
/* Rx process is completed, restore hirda->RxState to Ready */ | |
hirda->RxState = HAL_IRDA_STATE_READY; | |
HAL_IRDA_RxCpltCallback(hirda); | |
return HAL_OK; | |
} | |
return HAL_OK; | |
} | |
else | |
{ | |
/* Clear RXNE interrupt flag */ | |
__HAL_IRDA_SEND_REQ(hirda, IRDA_RXDATA_FLUSH_REQUEST); | |
return HAL_BUSY; | |
} | |
} | |
/** | |
* @brief DMA IRDA Tx transfer completed callback | |
* @param hdma: pointer to a DMA_HandleTypeDef structure that contains | |
* the configuration information for the specified DMA module. | |
* @retval None | |
*/ | |
static void IRDA_DMATransmitCplt(DMA_HandleTypeDef *hdma) | |
{ | |
IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; | |
/* DMA Normal mode*/ | |
if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0U) | |
{ | |
hirda->TxXferCount = 0U; | |
/* Disable the DMA transfer for transmit request by setting the DMAT bit | |
in the IRDA CR3 register */ | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAT); | |
/* Enable the IRDA Transmit Complete Interrupt */ | |
SET_BIT(hirda->Instance->CR1, USART_CR1_TCIE); | |
} | |
/* DMA Circular mode */ | |
else | |
{ | |
HAL_IRDA_TxCpltCallback(hirda); | |
} | |
} | |
/** | |
* @brief DMA IRDA receive process half complete callback | |
* @param hdma: pointer to a DMA_HandleTypeDef structure that contains | |
* the configuration information for the specified DMA module. | |
* @retval None | |
*/ | |
static void IRDA_DMATransmitHalfCplt(DMA_HandleTypeDef *hdma) | |
{ | |
IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; | |
HAL_IRDA_TxHalfCpltCallback(hirda); | |
} | |
/** | |
* @brief DMA IRDA Rx Transfer completed callback | |
* @param hdma: DMA handle | |
* @retval None | |
*/ | |
static void IRDA_DMAReceiveCplt(DMA_HandleTypeDef *hdma) | |
{ | |
IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; | |
/* DMA Normal mode */ | |
if((hdma->Instance->CR & DMA_SxCR_CIRC) == 0U) | |
{ | |
hirda->RxXferCount = 0U; | |
/* Disable PE and ERR (Frame error, noise error, overrun error) interrupts */ | |
CLEAR_BIT(hirda->Instance->CR1, USART_CR1_PEIE); | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_EIE); | |
/* Disable the DMA transfer for the receiver request by setting the DMAR bit | |
in the IRDA CR3 register */ | |
CLEAR_BIT(hirda->Instance->CR3, USART_CR3_DMAR); | |
/* At end of Rx process, restore hirda->RxState to Ready */ | |
hirda->RxState = HAL_IRDA_STATE_READY; | |
} | |
HAL_IRDA_RxCpltCallback(hirda); | |
} | |
/** | |
* @brief DMA IRDA receive process half complete callback | |
* @param hdma: pointer to a DMA_HandleTypeDef structure that contains | |
* the configuration information for the specified DMA module. | |
* @retval None | |
*/ | |
static void IRDA_DMAReceiveHalfCplt(DMA_HandleTypeDef *hdma) | |
{ | |
IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; | |
HAL_IRDA_RxHalfCpltCallback(hirda); | |
} | |
/** | |
* @brief DMA IRDA communication error callback | |
* @param hdma: DMA handle | |
* @retval None | |
*/ | |
static void IRDA_DMAError(DMA_HandleTypeDef *hdma) | |
{ | |
IRDA_HandleTypeDef* hirda = ( IRDA_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; | |
hirda->RxXferCount = 0U; | |
hirda->TxXferCount = 0U; | |
/* Stop IRDA DMA Tx request if ongoing */ | |
if ( (hirda->gState == HAL_IRDA_STATE_BUSY_TX) | |
&&(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAT)) ) | |
{ | |
IRDA_EndTxTransfer(hirda); | |
} | |
/* Stop IRDA DMA Rx request if ongoing */ | |
if ( (hirda->RxState == HAL_IRDA_STATE_BUSY_RX) | |
&&(HAL_IS_BIT_SET(hirda->Instance->CR3, USART_CR3_DMAR)) ) | |
{ | |
IRDA_EndRxTransfer(hirda); | |
} | |
hirda->ErrorCode |= HAL_IRDA_ERROR_DMA; | |
HAL_IRDA_ErrorCallback(hirda); | |
} | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
#endif /* HAL_IRDA_MODULE_ENABLED */ | |
/** | |
* @} | |
*/ | |
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ | |