/** | |
****************************************************************************** | |
* @file stm32f4xx_hal_smartcard.c | |
* @author MCD Application Team | |
* @brief SMARTCARD HAL module driver. | |
* This file provides firmware functions to manage the following | |
* functionalities of the SMARTCARD peripheral: | |
* + Initialization and de-initialization functions | |
* + IO operation functions | |
* + Peripheral State and Errors functions | |
* | |
@verbatim | |
============================================================================== | |
##### How to use this driver ##### | |
============================================================================== | |
[..] | |
The SMARTCARD HAL driver can be used as follows: | |
(#) Declare a SMARTCARD_HandleTypeDef handle structure. | |
(#) Initialize the SMARTCARD low level resources by implementing the HAL_SMARTCARD_MspInit() API: | |
(##) Enable the USARTx interface clock. | |
(##) SMARTCARD pins configuration: | |
(+++) Enable the clock for the SMARTCARD GPIOs. | |
(+++) Configure these SMARTCARD pins as alternate function pull-up. | |
(##) NVIC configuration if you need to use interrupt process (HAL_SMARTCARD_Transmit_IT() | |
and HAL_SMARTCARD_Receive_IT() APIs): | |
(+++) Configure the USARTx interrupt priority. | |
(+++) Enable the NVIC USART IRQ handle. | |
(##) DMA Configuration if you need to use DMA process (HAL_SMARTCARD_Transmit_DMA() | |
and HAL_SMARTCARD_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 SMARTCARD 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 , Stop Bit, Parity, Hardware | |
flow control and Mode(Receiver/Transmitter) in the SMARTCARD Init structure. | |
(#) Initialize the SMARTCARD registers by calling the HAL_SMARTCARD_Init() API: | |
(++) These APIs configure also the low level Hardware GPIO, CLOCK, CORTEX...etc) | |
by calling the customized HAL_SMARTCARD_MspInit() API. | |
[..] | |
(@) The specific SMARTCARD interrupts (Transmission complete interrupt, | |
RXNE interrupt and Error Interrupts) will be managed using the macros | |
__HAL_SMARTCARD_ENABLE_IT() and __HAL_SMARTCARD_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_SMARTCARD_Transmit() | |
(+) Receive an amount of data in blocking mode using HAL_SMARTCARD_Receive() | |
*** Interrupt mode IO operation *** | |
=================================== | |
[..] | |
(+) Send an amount of data in non blocking mode using HAL_SMARTCARD_Transmit_IT() | |
(+) At transmission end of transfer HAL_SMARTCARD_TxCpltCallback is executed and user can | |
add his own code by customization of function pointer HAL_SMARTCARD_TxCpltCallback | |
(+) Receive an amount of data in non blocking mode using HAL_SMARTCARD_Receive_IT() | |
(+) At reception end of transfer HAL_SMARTCARD_RxCpltCallback is executed and user can | |
add his own code by customization of function pointer HAL_SMARTCARD_RxCpltCallback | |
(+) In case of transfer Error, HAL_SMARTCARD_ErrorCallback() function is executed and user can | |
add his own code by customization of function pointer HAL_SMARTCARD_ErrorCallback | |
*** DMA mode IO operation *** | |
============================== | |
[..] | |
(+) Send an amount of data in non blocking mode (DMA) using HAL_SMARTCARD_Transmit_DMA() | |
(+) At transmission end of transfer HAL_SMARTCARD_TxCpltCallback is executed and user can | |
add his own code by customization of function pointer HAL_SMARTCARD_TxCpltCallback | |
(+) Receive an amount of data in non blocking mode (DMA) using HAL_SMARTCARD_Receive_DMA() | |
(+) At reception end of transfer HAL_SMARTCARD_RxCpltCallback is executed and user can | |
add his own code by customization of function pointer HAL_SMARTCARD_RxCpltCallback | |
(+) In case of transfer Error, HAL_SMARTCARD_ErrorCallback() function is executed and user can | |
add his own code by customization of function pointer HAL_SMARTCARD_ErrorCallback | |
*** SMARTCARD HAL driver macros list *** | |
============================================= | |
[..] | |
Below the list of most used macros in SMARTCARD HAL driver. | |
(+) __HAL_SMARTCARD_ENABLE: Enable the SMARTCARD peripheral | |
(+) __HAL_SMARTCARD_DISABLE: Disable the SMARTCARD peripheral | |
(+) __HAL_SMARTCARD_GET_FLAG : Check whether the specified SMARTCARD flag is set or not | |
(+) __HAL_SMARTCARD_CLEAR_FLAG : Clear the specified SMARTCARD pending flag | |
(+) __HAL_SMARTCARD_ENABLE_IT: Enable the specified SMARTCARD interrupt | |
(+) __HAL_SMARTCARD_DISABLE_IT: Disable the specified SMARTCARD interrupt | |
[..] | |
(@) You can refer to the SMARTCARD HAL driver header file for more useful macros | |
@endverbatim | |
****************************************************************************** | |
* @attention | |
* | |
* <h2><center>© COPYRIGHT(c) 2017 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 "stm32f4xx_hal.h" | |
/** @addtogroup STM32F4xx_HAL_Driver | |
* @{ | |
*/ | |
/** @defgroup SMARTCARD SMARTCARD | |
* @brief HAL USART SMARTCARD module driver | |
* @{ | |
*/ | |
#ifdef HAL_SMARTCARD_MODULE_ENABLED | |
/* Private typedef -----------------------------------------------------------*/ | |
/* Private define ------------------------------------------------------------*/ | |
/** @addtogroup SMARTCARD_Private_Constants | |
* @{ | |
*/ | |
/** | |
* @} | |
*/ | |
/* Private macro -------------------------------------------------------------*/ | |
/* Private variables ---------------------------------------------------------*/ | |
/* Private function prototypes -----------------------------------------------*/ | |
/** @addtogroup SMARTCARD_Private_Functions | |
* @{ | |
*/ | |
static void SMARTCARD_EndTxTransfer(SMARTCARD_HandleTypeDef *hsc); | |
static void SMARTCARD_EndRxTransfer(SMARTCARD_HandleTypeDef *hsc); | |
static void SMARTCARD_SetConfig (SMARTCARD_HandleTypeDef *hsc); | |
static HAL_StatusTypeDef SMARTCARD_Transmit_IT(SMARTCARD_HandleTypeDef *hsc); | |
static HAL_StatusTypeDef SMARTCARD_EndTransmit_IT(SMARTCARD_HandleTypeDef *hsmartcard); | |
static HAL_StatusTypeDef SMARTCARD_Receive_IT(SMARTCARD_HandleTypeDef *hsc); | |
static void SMARTCARD_DMATransmitCplt(DMA_HandleTypeDef *hdma); | |
static void SMARTCARD_DMAReceiveCplt(DMA_HandleTypeDef *hdma); | |
static void SMARTCARD_DMAError(DMA_HandleTypeDef *hdma); | |
static void SMARTCARD_DMAAbortOnError(DMA_HandleTypeDef *hdma); | |
static void SMARTCARD_DMATxAbortCallback(DMA_HandleTypeDef *hdma); | |
static void SMARTCARD_DMARxAbortCallback(DMA_HandleTypeDef *hdma); | |
static void SMARTCARD_DMATxOnlyAbortCallback(DMA_HandleTypeDef *hdma); | |
static void SMARTCARD_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma); | |
static HAL_StatusTypeDef SMARTCARD_WaitOnFlagUntilTimeout(SMARTCARD_HandleTypeDef *hsc, uint32_t Flag, FlagStatus Status, uint32_t Tickstart, uint32_t Timeout); | |
/** | |
* @} | |
*/ | |
/* Exported functions --------------------------------------------------------*/ | |
/** @defgroup SMARTCARD_Exported_Functions SMARTCARD Exported Functions | |
* @{ | |
*/ | |
/** @defgroup SMARTCARD_Exported_Functions_Group1 SmartCard 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 USART | |
in Smartcard mode. | |
[..] | |
The Smartcard interface is designed to support asynchronous protocol Smartcards as | |
defined in the ISO 7816-3 standard. | |
[..] | |
The USART can provide a clock to the smartcard through the SCLK output. | |
In smartcard mode, SCLK is not associated to the communication but is simply derived | |
from the internal peripheral input clock through a 5-bit prescaler. | |
[..] | |
(+) For the Smartcard mode only these parameters can be configured: | |
(++) Baud Rate | |
(++) Word Length => Should be 9 bits (8 bits + parity) | |
(++) Stop Bit | |
(++) Parity: => Should be enabled | |
(++) USART polarity | |
(++) USART phase | |
(++) USART LastBit | |
(++) Receiver/transmitter modes | |
(++) Prescaler | |
(++) GuardTime | |
(++) NACKState: The Smartcard NACK state | |
(+) Recommended SmartCard interface configuration to get the Answer to Reset from the Card: | |
(++) Word Length = 9 Bits | |
(++) 1.5 Stop Bit | |
(++) Even parity | |
(++) BaudRate = 12096 baud | |
(++) Tx and Rx enabled | |
[..] | |
Please refer to the ISO 7816-3 specification for more details. | |
[..] | |
(@) It is also possible to choose 0.5 stop bit for receiving but it is recommended | |
to use 1.5 stop bits for both transmitting and receiving to avoid switching | |
between the two configurations. | |
[..] | |
The HAL_SMARTCARD_Init() function follows the USART SmartCard configuration | |
procedure (details for the procedure are available in reference manual (RM0329)). | |
@endverbatim | |
The SMARTCARD frame format is given in the following table: | |
+-------------------------------------------------------------+ | |
| M bit | PCE bit | SMARTCARD frame | | |
|---------------------|---------------------------------------| | |
| 1 | 1 | | SB | 8 bit data | PB | STB | | | |
+-------------------------------------------------------------+ | |
* @{ | |
*/ | |
/** | |
* @brief Initializes the SmartCard mode according to the specified | |
* parameters in the SMARTCARD_InitTypeDef and create the associated handle . | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_SMARTCARD_Init(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* Check the SMARTCARD handle allocation */ | |
if(hsc == NULL) | |
{ | |
return HAL_ERROR; | |
} | |
/* Check the parameters */ | |
assert_param(IS_SMARTCARD_INSTANCE(hsc->Instance)); | |
assert_param(IS_SMARTCARD_NACK_STATE(hsc->Init.NACKState)); | |
if(hsc->gState == HAL_SMARTCARD_STATE_RESET) | |
{ | |
/* Allocate lock resource and initialize it */ | |
hsc->Lock = HAL_UNLOCKED; | |
/* Init the low level hardware : GPIO, CLOCK, CORTEX...etc */ | |
HAL_SMARTCARD_MspInit(hsc); | |
} | |
hsc->gState = HAL_SMARTCARD_STATE_BUSY; | |
/* Set the Prescaler */ | |
MODIFY_REG(hsc->Instance->GTPR, USART_GTPR_PSC, hsc->Init.Prescaler); | |
/* Set the Guard Time */ | |
MODIFY_REG(hsc->Instance->GTPR, USART_GTPR_GT, ((hsc->Init.GuardTime)<<8U)); | |
/* Set the Smartcard Communication parameters */ | |
SMARTCARD_SetConfig(hsc); | |
/* In SmartCard mode, the following bits must be kept cleared: | |
- LINEN bit in the USART_CR2 register | |
- HDSEL and IREN bits in the USART_CR3 register.*/ | |
CLEAR_BIT(hsc->Instance->CR2, USART_CR2_LINEN); | |
CLEAR_BIT(hsc->Instance->CR3, (USART_CR3_IREN | USART_CR3_HDSEL)); | |
/* Enable the SMARTCARD Parity Error Interrupt */ | |
SET_BIT(hsc->Instance->CR1, USART_CR1_PEIE); | |
/* Enable the SMARTCARD Framing Error Interrupt */ | |
SET_BIT(hsc->Instance->CR3, USART_CR3_EIE); | |
/* Enable the Peripheral */ | |
__HAL_SMARTCARD_ENABLE(hsc); | |
/* Configure the Smartcard NACK state */ | |
MODIFY_REG(hsc->Instance->CR3, USART_CR3_NACK, hsc->Init.NACKState); | |
/* Enable the SC mode by setting the SCEN bit in the CR3 register */ | |
hsc->Instance->CR3 |= (USART_CR3_SCEN); | |
/* Initialize the SMARTCARD state*/ | |
hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; | |
hsc->gState= HAL_SMARTCARD_STATE_READY; | |
hsc->RxState= HAL_SMARTCARD_STATE_READY; | |
return HAL_OK; | |
} | |
/** | |
* @brief DeInitializes the USART SmartCard peripheral | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_SMARTCARD_DeInit(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* Check the SMARTCARD handle allocation */ | |
if(hsc == NULL) | |
{ | |
return HAL_ERROR; | |
} | |
/* Check the parameters */ | |
assert_param(IS_SMARTCARD_INSTANCE(hsc->Instance)); | |
hsc->gState = HAL_SMARTCARD_STATE_BUSY; | |
/* Disable the Peripheral */ | |
__HAL_SMARTCARD_DISABLE(hsc); | |
/* DeInit the low level hardware */ | |
HAL_SMARTCARD_MspDeInit(hsc); | |
hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; | |
hsc->gState = HAL_SMARTCARD_STATE_RESET; | |
hsc->RxState = HAL_SMARTCARD_STATE_RESET; | |
/* Release Lock */ | |
__HAL_UNLOCK(hsc); | |
return HAL_OK; | |
} | |
/** | |
* @brief SMARTCARD MSP Init | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @retval None | |
*/ | |
__weak void HAL_SMARTCARD_MspInit(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(hsc); | |
/* NOTE : This function Should not be modified, when the callback is needed, | |
the HAL_SMARTCARD_MspInit could be implemented in the user file | |
*/ | |
} | |
/** | |
* @brief SMARTCARD MSP DeInit | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @retval None | |
*/ | |
__weak void HAL_SMARTCARD_MspDeInit(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(hsc); | |
/* NOTE : This function Should not be modified, when the callback is needed, | |
the HAL_SMARTCARD_MspDeInit could be implemented in the user file | |
*/ | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup SMARTCARD_Exported_Functions_Group2 IO operation functions | |
* @brief SMARTCARD Transmit and Receive functions | |
* | |
@verbatim | |
=============================================================================== | |
##### IO operation functions ##### | |
=============================================================================== | |
[..] This subsection provides a set of functions allowing to manage the SMARTCARD data transfers. | |
[..] | |
(#) Smartcard is a single wire half duplex communication protocol. | |
The Smartcard interface is designed to support asynchronous protocol Smartcards as | |
defined in the ISO 7816-3 standard. | |
(#) The USART should be configured as: | |
(++) 8 bits plus parity: where M=1 and PCE=1 in the USART_CR1 register | |
(++) 1.5 stop bits when transmitting and receiving: where STOP=11 in the USART_CR2 register. | |
(#) 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. | |
(++) Non Blocking mode: The communication is performed using Interrupts | |
or DMA, These APIs return the HAL status. | |
The end of the data processing will be indicated through the | |
dedicated SMARTCARD IRQ when using Interrupt mode or the DMA IRQ when | |
using DMA mode. | |
The HAL_SMARTCARD_TxCpltCallback(), HAL_SMARTCARD_RxCpltCallback() user callbacks | |
will be executed respectively at the end of the Transmit or Receive process | |
The HAL_SMARTCARD_ErrorCallback() user callback will be executed when a communication error is detected | |
(#) Blocking mode APIs are : | |
(++) HAL_SMARTCARD_Transmit() | |
(++) HAL_SMARTCARD_Receive() | |
(#) Non Blocking mode APIs with Interrupt are : | |
(++) HAL_SMARTCARD_Transmit_IT() | |
(++) HAL_SMARTCARD_Receive_IT() | |
(++) HAL_SMARTCARD_IRQHandler() | |
(#) Non Blocking mode functions with DMA are : | |
(++) HAL_SMARTCARD_Transmit_DMA() | |
(++) HAL_SMARTCARD_Receive_DMA() | |
(#) A set of Transfer Complete Callbacks are provided in non Blocking mode: | |
(++) HAL_SMARTCARD_TxCpltCallback() | |
(++) HAL_SMARTCARD_RxCpltCallback() | |
(++) HAL_SMARTCARD_ErrorCallback() | |
@endverbatim | |
* @{ | |
*/ | |
/** | |
* @brief Send an amount of data in blocking mode | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @param pData pointer to data buffer | |
* @param Size amount of data to be sent | |
* @param Timeout Timeout duration | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_SMARTCARD_Transmit(SMARTCARD_HandleTypeDef *hsc, uint8_t *pData, uint16_t Size, uint32_t Timeout) | |
{ | |
uint16_t* tmp; | |
uint32_t tickstart = 0U; | |
if(hsc->gState == HAL_SMARTCARD_STATE_READY) | |
{ | |
if((pData == NULL) || (Size == 0)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hsc); | |
hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; | |
hsc->gState = HAL_SMARTCARD_STATE_BUSY_TX; | |
/* Init tickstart for timeout managment */ | |
tickstart = HAL_GetTick(); | |
hsc->TxXferSize = Size; | |
hsc->TxXferCount = Size; | |
while(hsc->TxXferCount > 0U) | |
{ | |
hsc->TxXferCount--; | |
if(SMARTCARD_WaitOnFlagUntilTimeout(hsc, SMARTCARD_FLAG_TXE, RESET, tickstart, Timeout) != HAL_OK) | |
{ | |
return HAL_TIMEOUT; | |
} | |
tmp = (uint16_t*) pData; | |
hsc->Instance->DR = (*tmp & (uint16_t)0x01FF); | |
pData +=1U; | |
} | |
if(SMARTCARD_WaitOnFlagUntilTimeout(hsc, SMARTCARD_FLAG_TC, RESET, tickstart, Timeout) != HAL_OK) | |
{ | |
return HAL_TIMEOUT; | |
} | |
/* At end of Tx process, restore hsc->gState to Ready */ | |
hsc->gState = HAL_SMARTCARD_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hsc); | |
return HAL_OK; | |
} | |
else | |
{ | |
return HAL_BUSY; | |
} | |
} | |
/** | |
* @brief Receive an amount of data in blocking mode | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @param pData pointer to data buffer | |
* @param Size amount of data to be received | |
* @param Timeout Timeout duration | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_SMARTCARD_Receive(SMARTCARD_HandleTypeDef *hsc, uint8_t *pData, uint16_t Size, uint32_t Timeout) | |
{ | |
uint16_t* tmp; | |
uint32_t tickstart = 0U; | |
if(hsc->RxState == HAL_SMARTCARD_STATE_READY) | |
{ | |
if((pData == NULL) || (Size == 0)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hsc); | |
hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; | |
hsc->RxState = HAL_SMARTCARD_STATE_BUSY_RX; | |
/* Init tickstart for timeout managment */ | |
tickstart = HAL_GetTick(); | |
hsc->RxXferSize = Size; | |
hsc->RxXferCount = Size; | |
/* Check the remain data to be received */ | |
while(hsc->RxXferCount > 0U) | |
{ | |
hsc->RxXferCount--; | |
if(SMARTCARD_WaitOnFlagUntilTimeout(hsc, SMARTCARD_FLAG_RXNE, RESET, tickstart, Timeout) != HAL_OK) | |
{ | |
return HAL_TIMEOUT; | |
} | |
tmp = (uint16_t*) pData; | |
*tmp = (uint8_t)(hsc->Instance->DR & (uint8_t)0xFF); | |
pData +=1U; | |
} | |
/* At end of Rx process, restore hsc->RxState to Ready */ | |
hsc->RxState = HAL_SMARTCARD_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hsc); | |
return HAL_OK; | |
} | |
else | |
{ | |
return HAL_BUSY; | |
} | |
} | |
/** | |
* @brief Send an amount of data in non blocking mode | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @param pData pointer to data buffer | |
* @param Size amount of data to be sent | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_SMARTCARD_Transmit_IT(SMARTCARD_HandleTypeDef *hsc, uint8_t *pData, uint16_t Size) | |
{ | |
/* Check that a Tx process is not already ongoing */ | |
if(hsc->gState == HAL_SMARTCARD_STATE_READY) | |
{ | |
if((pData == NULL) || (Size == 0)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hsc); | |
hsc->pTxBuffPtr = pData; | |
hsc->TxXferSize = Size; | |
hsc->TxXferCount = Size; | |
hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; | |
hsc->gState = HAL_SMARTCARD_STATE_BUSY_TX; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hsc); | |
/* Enable the SMARTCARD Parity Error Interrupt */ | |
SET_BIT(hsc->Instance->CR1, USART_CR1_PEIE); | |
/* Disable the SMARTCARD Error Interrupt: (Frame error, noise error, overrun error) */ | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_EIE); | |
/* Enable the SMARTCARD Transmit data register empty Interrupt */ | |
SET_BIT(hsc->Instance->CR1, USART_CR1_TXEIE); | |
return HAL_OK; | |
} | |
else | |
{ | |
return HAL_BUSY; | |
} | |
} | |
/** | |
* @brief Receive an amount of data in non blocking mode | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @param pData pointer to data buffer | |
* @param Size amount of data to be received | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_SMARTCARD_Receive_IT(SMARTCARD_HandleTypeDef *hsc, uint8_t *pData, uint16_t Size) | |
{ | |
/* Check that a Rx process is not already ongoing */ | |
if(hsc->RxState == HAL_SMARTCARD_STATE_READY) | |
{ | |
if((pData == NULL) || (Size == 0)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hsc); | |
hsc->pRxBuffPtr = pData; | |
hsc->RxXferSize = Size; | |
hsc->RxXferCount = Size; | |
hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; | |
hsc->RxState = HAL_SMARTCARD_STATE_BUSY_RX; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hsc); | |
/* Enable the SMARTCARD Parity Error and Data Register not empty Interrupts */ | |
SET_BIT(hsc->Instance->CR1, USART_CR1_PEIE| USART_CR1_RXNEIE); | |
/* Enable the SMARTCARD Error Interrupt: (Frame error, noise error, overrun error) */ | |
SET_BIT(hsc->Instance->CR3, USART_CR3_EIE); | |
return HAL_OK; | |
} | |
else | |
{ | |
return HAL_BUSY; | |
} | |
} | |
/** | |
* @brief Send an amount of data in non blocking mode | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @param pData pointer to data buffer | |
* @param Size amount of data to be sent | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_SMARTCARD_Transmit_DMA(SMARTCARD_HandleTypeDef *hsc, uint8_t *pData, uint16_t Size) | |
{ | |
uint32_t *tmp; | |
/* Check that a Tx process is not already ongoing */ | |
if(hsc->gState == HAL_SMARTCARD_STATE_READY) | |
{ | |
if((pData == NULL) || (Size == 0)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hsc); | |
hsc->pTxBuffPtr = pData; | |
hsc->TxXferSize = Size; | |
hsc->TxXferCount = Size; | |
hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; | |
hsc->gState = HAL_SMARTCARD_STATE_BUSY_TX; | |
/* Set the SMARTCARD DMA transfer complete callback */ | |
hsc->hdmatx->XferCpltCallback = SMARTCARD_DMATransmitCplt; | |
/* Set the DMA error callback */ | |
hsc->hdmatx->XferErrorCallback = SMARTCARD_DMAError; | |
/* Set the DMA abort callback */ | |
hsc->hdmatx->XferAbortCallback = NULL; | |
/* Enable the SMARTCARD transmit DMA Stream */ | |
tmp = (uint32_t*)&pData; | |
HAL_DMA_Start_IT(hsc->hdmatx, *(uint32_t*)tmp, (uint32_t)&hsc->Instance->DR, Size); | |
/* Clear the TC flag in the SR register by writing 0 to it */ | |
__HAL_SMARTCARD_CLEAR_FLAG(hsc, SMARTCARD_FLAG_TC); | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hsc); | |
/* Enable the DMA transfer for transmit request by setting the DMAT bit | |
in the SMARTCARD CR3 register */ | |
SET_BIT(hsc->Instance->CR3, USART_CR3_DMAT); | |
return HAL_OK; | |
} | |
else | |
{ | |
return HAL_BUSY; | |
} | |
} | |
/** | |
* @brief Receive an amount of data in non blocking mode | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @param pData pointer to data buffer | |
* @param Size amount of data to be received | |
* @note When the SMARTCARD parity is enabled (PCE = 1) the data received contain the parity bit.s | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_SMARTCARD_Receive_DMA(SMARTCARD_HandleTypeDef *hsc, uint8_t *pData, uint16_t Size) | |
{ | |
uint32_t *tmp; | |
/* Check that a Rx process is not already ongoing */ | |
if(hsc->RxState == HAL_SMARTCARD_STATE_READY) | |
{ | |
if((pData == NULL) || (Size == 0)) | |
{ | |
return HAL_ERROR; | |
} | |
/* Process Locked */ | |
__HAL_LOCK(hsc); | |
hsc->pRxBuffPtr = pData; | |
hsc->RxXferSize = Size; | |
hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; | |
hsc->RxState = HAL_SMARTCARD_STATE_BUSY_RX; | |
/* Set the SMARTCARD DMA transfer complete callback */ | |
hsc->hdmarx->XferCpltCallback = SMARTCARD_DMAReceiveCplt; | |
/* Set the DMA error callback */ | |
hsc->hdmarx->XferErrorCallback = SMARTCARD_DMAError; | |
/* Set the DMA abort callback */ | |
hsc->hdmatx->XferAbortCallback = NULL; | |
/* Enable the DMA Stream */ | |
tmp = (uint32_t*)&pData; | |
HAL_DMA_Start_IT(hsc->hdmarx, (uint32_t)&hsc->Instance->DR, *(uint32_t*)tmp, Size); | |
/* Clear the Overrun flag just before enabling the DMA Rx request: can be mandatory for the second transfer */ | |
__HAL_SMARTCARD_CLEAR_OREFLAG(hsc); | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hsc); | |
/* Enable the SMARTCARD Parity Error Interrupt */ | |
SET_BIT(hsc->Instance->CR1, USART_CR1_PEIE); | |
/* Enable the SMARTCARD Error Interrupt: (Frame error, noise error, overrun error) */ | |
SET_BIT(hsc->Instance->CR3, USART_CR3_EIE); | |
/* Enable the DMA transfer for the receiver request by setting the DMAR bit | |
in the SMARTCARD CR3 register */ | |
SET_BIT(hsc->Instance->CR3, USART_CR3_DMAR); | |
return HAL_OK; | |
} | |
else | |
{ | |
return HAL_BUSY; | |
} | |
} | |
/** | |
* @brief Abort ongoing transfers (blocking mode). | |
* @param hsc SMARTCARD handle. | |
* @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. | |
* This procedure performs following operations : | |
* - Disable PPP Interrupts | |
* - Disable the DMA transfer in the peripheral register (if enabled) | |
* - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode) | |
* - Set handle State to READY | |
* @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_SMARTCARD_Abort(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* Disable TXEIE, TCIE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ | |
CLEAR_BIT(hsc->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE)); | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_EIE); | |
/* Disable the SMARTCARD DMA Tx request if enabled */ | |
if(HAL_IS_BIT_SET(hsc->Instance->CR3, USART_CR3_DMAT)) | |
{ | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_DMAT); | |
/* Abort the SMARTCARD DMA Tx channel : use blocking DMA Abort API (no callback) */ | |
if(hsc->hdmatx != NULL) | |
{ | |
/* Set the SMARTCARD DMA Abort callback to Null. | |
No call back execution at end of DMA abort procedure */ | |
hsc->hdmatx->XferAbortCallback = NULL; | |
HAL_DMA_Abort(hsc->hdmatx); | |
} | |
} | |
/* Disable the SMARTCARD DMA Rx request if enabled */ | |
if(HAL_IS_BIT_SET(hsc->Instance->CR3, USART_CR3_DMAR)) | |
{ | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_DMAR); | |
/* Abort the SMARTCARD DMA Rx channel : use blocking DMA Abort API (no callback) */ | |
if(hsc->hdmarx != NULL) | |
{ | |
/* Set the SMARTCARD DMA Abort callback to Null. | |
No call back execution at end of DMA abort procedure */ | |
hsc->hdmarx->XferAbortCallback = NULL; | |
HAL_DMA_Abort(hsc->hdmarx); | |
} | |
} | |
/* Reset Tx and Rx transfer counters */ | |
hsc->TxXferCount = 0x00U; | |
hsc->RxXferCount = 0x00U; | |
/* Reset ErrorCode */ | |
hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; | |
/* Restore hsc->RxState and hsc->gState to Ready */ | |
hsc->RxState = HAL_SMARTCARD_STATE_READY; | |
hsc->gState = HAL_SMARTCARD_STATE_READY; | |
return HAL_OK; | |
} | |
/** | |
* @brief Abort ongoing Transmit transfer (blocking mode). | |
* @param hsc SMARTCARD handle. | |
* @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. | |
* This procedure performs following operations : | |
* - Disable PPP Interrupts | |
* - Disable the DMA transfer in the peripheral register (if enabled) | |
* - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode) | |
* - Set handle State to READY | |
* @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_SMARTCARD_AbortTransmit(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* Disable TXEIE and TCIE interrupts */ | |
CLEAR_BIT(hsc->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE)); | |
/* Disable the SMARTCARD DMA Tx request if enabled */ | |
if(HAL_IS_BIT_SET(hsc->Instance->CR3, USART_CR3_DMAT)) | |
{ | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_DMAT); | |
/* Abort the SMARTCARD DMA Tx channel : use blocking DMA Abort API (no callback) */ | |
if(hsc->hdmatx != NULL) | |
{ | |
/* Set the SMARTCARD DMA Abort callback to Null. | |
No call back execution at end of DMA abort procedure */ | |
hsc->hdmatx->XferAbortCallback = NULL; | |
HAL_DMA_Abort(hsc->hdmatx); | |
} | |
} | |
/* Reset Tx transfer counter */ | |
hsc->TxXferCount = 0x00U; | |
/* Restore hsc->gState to Ready */ | |
hsc->gState = HAL_SMARTCARD_STATE_READY; | |
return HAL_OK; | |
} | |
/** | |
* @brief Abort ongoing Receive transfer (blocking mode). | |
* @param hsc SMARTCARD handle. | |
* @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. | |
* This procedure performs following operations : | |
* - Disable PPP Interrupts | |
* - Disable the DMA transfer in the peripheral register (if enabled) | |
* - Abort DMA transfer by calling HAL_DMA_Abort (in case of transfer in DMA mode) | |
* - Set handle State to READY | |
* @note This procedure is executed in blocking mode : when exiting function, Abort is considered as completed. | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_SMARTCARD_AbortReceive(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ | |
CLEAR_BIT(hsc->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE)); | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_EIE); | |
/* Disable the SMARTCARD DMA Rx request if enabled */ | |
if(HAL_IS_BIT_SET(hsc->Instance->CR3, USART_CR3_DMAR)) | |
{ | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_DMAR); | |
/* Abort the SMARTCARD DMA Rx channel : use blocking DMA Abort API (no callback) */ | |
if(hsc->hdmarx != NULL) | |
{ | |
/* Set the SMARTCARD DMA Abort callback to Null. | |
No call back execution at end of DMA abort procedure */ | |
hsc->hdmarx->XferAbortCallback = NULL; | |
HAL_DMA_Abort(hsc->hdmarx); | |
} | |
} | |
/* Reset Rx transfer counter */ | |
hsc->RxXferCount = 0x00U; | |
/* Restore hsc->RxState to Ready */ | |
hsc->RxState = HAL_SMARTCARD_STATE_READY; | |
return HAL_OK; | |
} | |
/** | |
* @brief Abort ongoing transfers (Interrupt mode). | |
* @param hsc SMARTCARD handle. | |
* @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. | |
* This procedure performs following operations : | |
* - Disable PPP Interrupts | |
* - Disable the DMA transfer in the peripheral register (if enabled) | |
* - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode) | |
* - Set handle State to READY | |
* - At abort completion, call user abort complete callback | |
* @note This procedure is executed in Interrupt mode, meaning that abort procedure could be | |
* considered as completed only when user abort complete callback is executed (not when exiting function). | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_SMARTCARD_Abort_IT(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
uint32_t AbortCplt = 0x01U; | |
/* Disable TXEIE, TCIE, RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ | |
CLEAR_BIT(hsc->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE | USART_CR1_TXEIE | USART_CR1_TCIE)); | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_EIE); | |
/* If DMA Tx and/or DMA Rx Handles are associated to SMARTCARD Handle, DMA Abort complete callbacks should be initialised | |
before any call to DMA Abort functions */ | |
/* DMA Tx Handle is valid */ | |
if(hsc->hdmatx != NULL) | |
{ | |
/* Set DMA Abort Complete callback if SMARTCARD DMA Tx request if enabled. | |
Otherwise, set it to NULL */ | |
if(HAL_IS_BIT_SET(hsc->Instance->CR3, USART_CR3_DMAT)) | |
{ | |
hsc->hdmatx->XferAbortCallback = SMARTCARD_DMATxAbortCallback; | |
} | |
else | |
{ | |
hsc->hdmatx->XferAbortCallback = NULL; | |
} | |
} | |
/* DMA Rx Handle is valid */ | |
if(hsc->hdmarx != NULL) | |
{ | |
/* Set DMA Abort Complete callback if SMARTCARD DMA Rx request if enabled. | |
Otherwise, set it to NULL */ | |
if(HAL_IS_BIT_SET(hsc->Instance->CR3, USART_CR3_DMAR)) | |
{ | |
hsc->hdmarx->XferAbortCallback = SMARTCARD_DMARxAbortCallback; | |
} | |
else | |
{ | |
hsc->hdmarx->XferAbortCallback = NULL; | |
} | |
} | |
/* Disable the SMARTCARD DMA Tx request if enabled */ | |
if(HAL_IS_BIT_SET(hsc->Instance->CR3, USART_CR3_DMAT)) | |
{ | |
/* Disable DMA Tx at SMARTCARD level */ | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_DMAT); | |
/* Abort the SMARTCARD DMA Tx channel : use non blocking DMA Abort API (callback) */ | |
if(hsc->hdmatx != NULL) | |
{ | |
/* SMARTCARD Tx DMA Abort callback has already been initialised : | |
will lead to call HAL_SMARTCARD_AbortCpltCallback() at end of DMA abort procedure */ | |
/* Abort DMA TX */ | |
if(HAL_DMA_Abort_IT(hsc->hdmatx) != HAL_OK) | |
{ | |
hsc->hdmatx->XferAbortCallback = NULL; | |
} | |
else | |
{ | |
AbortCplt = 0x00U; | |
} | |
} | |
} | |
/* Disable the SMARTCARD DMA Rx request if enabled */ | |
if(HAL_IS_BIT_SET(hsc->Instance->CR3, USART_CR3_DMAR)) | |
{ | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_DMAR); | |
/* Abort the SMARTCARD DMA Rx channel : use non blocking DMA Abort API (callback) */ | |
if(hsc->hdmarx != NULL) | |
{ | |
/* SMARTCARD Rx DMA Abort callback has already been initialised : | |
will lead to call HAL_SMARTCARD_AbortCpltCallback() at end of DMA abort procedure */ | |
/* Abort DMA RX */ | |
if(HAL_DMA_Abort_IT(hsc->hdmarx) != HAL_OK) | |
{ | |
hsc->hdmarx->XferAbortCallback = NULL; | |
AbortCplt = 0x01U; | |
} | |
else | |
{ | |
AbortCplt = 0x00U; | |
} | |
} | |
} | |
/* if no DMA abort complete callback execution is required => call user Abort Complete callback */ | |
if(AbortCplt == 0x01U) | |
{ | |
/* Reset Tx and Rx transfer counters */ | |
hsc->TxXferCount = 0x00U; | |
hsc->RxXferCount = 0x00U; | |
/* Reset ErrorCode */ | |
hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; | |
/* Restore hsc->gState and hsc->RxState to Ready */ | |
hsc->gState = HAL_SMARTCARD_STATE_READY; | |
hsc->RxState = HAL_SMARTCARD_STATE_READY; | |
/* As no DMA to be aborted, call directly user Abort complete callback */ | |
HAL_SMARTCARD_AbortCpltCallback(hsc); | |
} | |
return HAL_OK; | |
} | |
/** | |
* @brief Abort ongoing Transmit transfer (Interrupt mode). | |
* @param hsc SMARTCARD handle. | |
* @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. | |
* This procedure performs following operations : | |
* - Disable PPP Interrupts | |
* - Disable the DMA transfer in the peripheral register (if enabled) | |
* - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode) | |
* - Set handle State to READY | |
* - At abort completion, call user abort complete callback | |
* @note This procedure is executed in Interrupt mode, meaning that abort procedure could be | |
* considered as completed only when user abort complete callback is executed (not when exiting function). | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_SMARTCARD_AbortTransmit_IT(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* Disable TXEIE and TCIE interrupts */ | |
CLEAR_BIT(hsc->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE)); | |
/* Disable the SMARTCARD DMA Tx request if enabled */ | |
if(HAL_IS_BIT_SET(hsc->Instance->CR3, USART_CR3_DMAT)) | |
{ | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_DMAT); | |
/* Abort the SMARTCARD DMA Tx channel : use blocking DMA Abort API (no callback) */ | |
if(hsc->hdmatx != NULL) | |
{ | |
/* Set the SMARTCARD DMA Abort callback : | |
will lead to call HAL_SMARTCARD_AbortCpltCallback() at end of DMA abort procedure */ | |
hsc->hdmatx->XferAbortCallback = SMARTCARD_DMATxOnlyAbortCallback; | |
/* Abort DMA TX */ | |
if(HAL_DMA_Abort_IT(hsc->hdmatx) != HAL_OK) | |
{ | |
/* Call Directly hsc->hdmatx->XferAbortCallback function in case of error */ | |
hsc->hdmatx->XferAbortCallback(hsc->hdmatx); | |
} | |
} | |
else | |
{ | |
/* Reset Tx transfer counter */ | |
hsc->TxXferCount = 0x00U; | |
/* Restore hsc->gState to Ready */ | |
hsc->gState = HAL_SMARTCARD_STATE_READY; | |
/* As no DMA to be aborted, call directly user Abort complete callback */ | |
HAL_SMARTCARD_AbortTransmitCpltCallback(hsc); | |
} | |
} | |
else | |
{ | |
/* Reset Tx transfer counter */ | |
hsc->TxXferCount = 0x00U; | |
/* Restore hsc->gState to Ready */ | |
hsc->gState = HAL_SMARTCARD_STATE_READY; | |
/* As no DMA to be aborted, call directly user Abort complete callback */ | |
HAL_SMARTCARD_AbortTransmitCpltCallback(hsc); | |
} | |
return HAL_OK; | |
} | |
/** | |
* @brief Abort ongoing Receive transfer (Interrupt mode). | |
* @param hsc SMARTCARD handle. | |
* @note This procedure could be used for aborting any ongoing transfer started in Interrupt or DMA mode. | |
* This procedure performs following operations : | |
* - Disable PPP Interrupts | |
* - Disable the DMA transfer in the peripheral register (if enabled) | |
* - Abort DMA transfer by calling HAL_DMA_Abort_IT (in case of transfer in DMA mode) | |
* - Set handle State to READY | |
* - At abort completion, call user abort complete callback | |
* @note This procedure is executed in Interrupt mode, meaning that abort procedure could be | |
* considered as completed only when user abort complete callback is executed (not when exiting function). | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_SMARTCARD_AbortReceive_IT(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ | |
CLEAR_BIT(hsc->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE)); | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_EIE); | |
/* Disable the SMARTCARD DMA Rx request if enabled */ | |
if(HAL_IS_BIT_SET(hsc->Instance->CR3, USART_CR3_DMAR)) | |
{ | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_DMAR); | |
/* Abort the SMARTCARD DMA Rx channel : use blocking DMA Abort API (no callback) */ | |
if(hsc->hdmarx != NULL) | |
{ | |
/* Set the SMARTCARD DMA Abort callback : | |
will lead to call HAL_SMARTCARD_AbortCpltCallback() at end of DMA abort procedure */ | |
hsc->hdmarx->XferAbortCallback = SMARTCARD_DMARxOnlyAbortCallback; | |
/* Abort DMA RX */ | |
if(HAL_DMA_Abort_IT(hsc->hdmarx) != HAL_OK) | |
{ | |
/* Call Directly hsc->hdmarx->XferAbortCallback function in case of error */ | |
hsc->hdmarx->XferAbortCallback(hsc->hdmarx); | |
} | |
} | |
else | |
{ | |
/* Reset Rx transfer counter */ | |
hsc->RxXferCount = 0x00U; | |
/* Restore hsc->RxState to Ready */ | |
hsc->RxState = HAL_SMARTCARD_STATE_READY; | |
/* As no DMA to be aborted, call directly user Abort complete callback */ | |
HAL_SMARTCARD_AbortReceiveCpltCallback(hsc); | |
} | |
} | |
else | |
{ | |
/* Reset Rx transfer counter */ | |
hsc->RxXferCount = 0x00U; | |
/* Restore hsc->RxState to Ready */ | |
hsc->RxState = HAL_SMARTCARD_STATE_READY; | |
/* As no DMA to be aborted, call directly user Abort complete callback */ | |
HAL_SMARTCARD_AbortReceiveCpltCallback(hsc); | |
} | |
return HAL_OK; | |
} | |
/** | |
* @brief This function handles SMARTCARD interrupt request. | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @retval None | |
*/ | |
void HAL_SMARTCARD_IRQHandler(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
uint32_t isrflags = READ_REG(hsc->Instance->SR); | |
uint32_t cr1its = READ_REG(hsc->Instance->CR1); | |
uint32_t cr3its = READ_REG(hsc->Instance->CR3); | |
uint32_t dmarequest = 0x00U; | |
uint32_t errorflags = 0x00U; | |
/* If no error occurs */ | |
errorflags = (isrflags & (uint32_t)(USART_SR_PE | USART_SR_FE | USART_SR_ORE | USART_SR_NE)); | |
if(errorflags == RESET) | |
{ | |
/* SMARTCARD in mode Receiver -------------------------------------------------*/ | |
if(((isrflags & USART_SR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET)) | |
{ | |
SMARTCARD_Receive_IT(hsc); | |
return; | |
} | |
} | |
/* If some errors occur */ | |
if((errorflags != RESET) && (((cr3its & USART_CR3_EIE) != RESET) || ((cr1its & (USART_CR1_RXNEIE | USART_CR1_PEIE)) != RESET))) | |
{ | |
/* SMARTCARD parity error interrupt occurred ---------------------------*/ | |
if(((isrflags & SMARTCARD_FLAG_PE) != RESET) && ((cr1its & USART_CR1_PEIE) != RESET)) | |
{ | |
hsc->ErrorCode |= HAL_SMARTCARD_ERROR_PE; | |
} | |
/* SMARTCARD frame error interrupt occurred ----------------------------*/ | |
if(((isrflags & SMARTCARD_FLAG_FE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET)) | |
{ | |
hsc->ErrorCode |= HAL_SMARTCARD_ERROR_FE; | |
} | |
/* SMARTCARD noise error interrupt occurred ----------------------------*/ | |
if(((isrflags & SMARTCARD_FLAG_NE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET)) | |
{ | |
hsc->ErrorCode |= HAL_SMARTCARD_ERROR_NE; | |
} | |
/* SMARTCARD Over-Run interrupt occurred -------------------------------*/ | |
if(((isrflags & SMARTCARD_FLAG_ORE) != RESET) && ((cr3its & USART_CR3_EIE) != RESET)) | |
{ | |
hsc->ErrorCode |= HAL_SMARTCARD_ERROR_ORE; | |
} | |
/* Call the Error call Back in case of Errors */ | |
if(hsc->ErrorCode != HAL_SMARTCARD_ERROR_NONE) | |
{ | |
/* SMARTCARD in mode Receiver -----------------------------------------------*/ | |
if(((isrflags & USART_SR_RXNE) != RESET) && ((cr1its & USART_CR1_RXNEIE) != RESET)) | |
{ | |
SMARTCARD_Receive_IT(hsc); | |
} | |
/* If Overrun error occurs, or if any error occurs in DMA mode reception, | |
consider error as blocking */ | |
dmarequest = HAL_IS_BIT_SET(hsc->Instance->CR3, USART_CR3_DMAR); | |
if(((hsc->ErrorCode & HAL_SMARTCARD_ERROR_ORE) != RESET) || dmarequest) | |
{ | |
/* Blocking error : transfer is aborted | |
Set the SMARTCARD state ready to be able to start again the process, | |
Disable Rx Interrupts, and disable Rx DMA request, if ongoing */ | |
SMARTCARD_EndRxTransfer(hsc); | |
/* Disable the SMARTCARD DMA Rx request if enabled */ | |
if(HAL_IS_BIT_SET(hsc->Instance->CR3, USART_CR3_DMAR)) | |
{ | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_DMAR); | |
/* Abort the SMARTCARD DMA Rx channel */ | |
if(hsc->hdmarx != NULL) | |
{ | |
/* Set the SMARTCARD DMA Abort callback : | |
will lead to call HAL_SMARTCARD_ErrorCallback() at end of DMA abort procedure */ | |
hsc->hdmarx->XferAbortCallback = SMARTCARD_DMAAbortOnError; | |
if(HAL_DMA_Abort_IT(hsc->hdmarx) != HAL_OK) | |
{ | |
/* Call Directly XferAbortCallback function in case of error */ | |
hsc->hdmarx->XferAbortCallback(hsc->hdmarx); | |
} | |
} | |
else | |
{ | |
/* Call user error callback */ | |
HAL_SMARTCARD_ErrorCallback(hsc); | |
} | |
} | |
else | |
{ | |
/* Call user error callback */ | |
HAL_SMARTCARD_ErrorCallback(hsc); | |
} | |
} | |
else | |
{ | |
/* Call user error callback */ | |
HAL_SMARTCARD_ErrorCallback(hsc); | |
hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; | |
} | |
} | |
return; | |
} /* End if some error occurs */ | |
/* SMARTCARD in mode Transmitter -------------------------------------------*/ | |
if(((isrflags & SMARTCARD_FLAG_TXE) != RESET) && ((cr1its & USART_CR1_TXEIE) != RESET)) | |
{ | |
SMARTCARD_Transmit_IT(hsc); | |
return; | |
} | |
/* SMARTCARD in mode Transmitter (transmission end) ------------------------*/ | |
if(((isrflags & SMARTCARD_FLAG_TC) != RESET) && ((cr1its & USART_CR1_TCIE) != RESET)) | |
{ | |
SMARTCARD_EndTransmit_IT(hsc); | |
return; | |
} | |
} | |
/** | |
* @brief Tx Transfer completed callbacks | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @retval None | |
*/ | |
__weak void HAL_SMARTCARD_TxCpltCallback(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(hsc); | |
/* NOTE : This function Should not be modified, when the callback is needed, | |
the HAL_SMARTCARD_TxCpltCallback could be implemented in the user file | |
*/ | |
} | |
/** | |
* @brief Rx Transfer completed callbacks | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @retval None | |
*/ | |
__weak void HAL_SMARTCARD_RxCpltCallback(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(hsc); | |
/* NOTE : This function Should not be modified, when the callback is needed, | |
the HAL_SMARTCARD_TxCpltCallback could be implemented in the user file | |
*/ | |
} | |
/** | |
* @brief SMARTCARD error callbacks | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @retval None | |
*/ | |
__weak void HAL_SMARTCARD_ErrorCallback(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(hsc); | |
/* NOTE : This function Should not be modified, when the callback is needed, | |
the HAL_SMARTCARD_ErrorCallback could be implemented in the user file | |
*/ | |
} | |
/** | |
* @brief SMARTCARD Abort Complete callback. | |
* @param hsc SMARTCARD handle. | |
* @retval None | |
*/ | |
__weak void HAL_SMARTCARD_AbortCpltCallback (SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(hsc); | |
/* NOTE : This function should not be modified, when the callback is needed, | |
the HAL_SMARTCARD_AbortCpltCallback can be implemented in the user file. | |
*/ | |
} | |
/** | |
* @brief SMARTCARD Abort Transmit Complete callback. | |
* @param hsc SMARTCARD handle. | |
* @retval None | |
*/ | |
__weak void HAL_SMARTCARD_AbortTransmitCpltCallback (SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(hsc); | |
/* NOTE : This function should not be modified, when the callback is needed, | |
the HAL_SMARTCARD_AbortTransmitCpltCallback can be implemented in the user file. | |
*/ | |
} | |
/** | |
* @brief SMARTCARD Abort ReceiveComplete callback. | |
* @param hsc SMARTCARD handle. | |
* @retval None | |
*/ | |
__weak void HAL_SMARTCARD_AbortReceiveCpltCallback (SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(hsc); | |
/* NOTE : This function should not be modified, when the callback is needed, | |
the HAL_SMARTCARD_AbortReceiveCpltCallback can be implemented in the user file. | |
*/ | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup SMARTCARD_Exported_Functions_Group3 Peripheral State and Errors functions | |
* @brief SMARTCARD State and Errors functions | |
* | |
@verbatim | |
=============================================================================== | |
##### Peripheral State and Errors functions ##### | |
=============================================================================== | |
[..] | |
This subsection provides a set of functions allowing to control the SmartCard. | |
(+) HAL_SMARTCARD_GetState() API can be helpful to check in run-time the state of the SmartCard peripheral. | |
(+) HAL_SMARTCARD_GetError() check in run-time errors that could be occurred during communication. | |
@endverbatim | |
* @{ | |
*/ | |
/** | |
* @brief return the SMARTCARD state | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @retval HAL state | |
*/ | |
HAL_SMARTCARD_StateTypeDef HAL_SMARTCARD_GetState(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
uint32_t temp1= 0x00U, temp2 = 0x00U; | |
temp1 = hsc->gState; | |
temp2 = hsc->RxState; | |
return (HAL_SMARTCARD_StateTypeDef)(temp1 | temp2); | |
} | |
/** | |
* @brief Return the SMARTCARD error code | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for the specified SMARTCARD. | |
* @retval SMARTCARD Error Code | |
*/ | |
uint32_t HAL_SMARTCARD_GetError(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
return hsc->ErrorCode; | |
} | |
/** | |
* @} | |
*/ | |
/** | |
* @brief DMA SMARTCARD 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 SMARTCARD_DMATransmitCplt(DMA_HandleTypeDef *hdma) | |
{ | |
SMARTCARD_HandleTypeDef* hsc = ( SMARTCARD_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; | |
hsc->TxXferCount = 0U; | |
/* Disable the DMA transfer for transmit request by setting the DMAT bit | |
in the USART CR3 register */ | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_DMAT); | |
/* Enable the SMARTCARD Transmit Complete Interrupt */ | |
SET_BIT(hsc->Instance->CR1, USART_CR1_TCIE); | |
} | |
/** | |
* @brief DMA SMARTCARD 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 SMARTCARD_DMAReceiveCplt(DMA_HandleTypeDef *hdma) | |
{ | |
SMARTCARD_HandleTypeDef* hsc = ( SMARTCARD_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; | |
hsc->RxXferCount = 0U; | |
/* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ | |
CLEAR_BIT(hsc->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE)); | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_EIE); | |
/* Disable the DMA transfer for the receiver request by setting the DMAR bit | |
in the USART CR3 register */ | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_DMAR); | |
/* At end of Rx process, restore hsc->RxState to Ready */ | |
hsc->RxState = HAL_SMARTCARD_STATE_READY; | |
HAL_SMARTCARD_RxCpltCallback(hsc); | |
} | |
/** | |
* @brief DMA SMARTCARD 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 SMARTCARD_DMAError(DMA_HandleTypeDef *hdma) | |
{ | |
uint32_t dmarequest = 0x00U; | |
SMARTCARD_HandleTypeDef* hsc = ( SMARTCARD_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; | |
hsc->RxXferCount = 0U; | |
hsc->TxXferCount = 0U; | |
hsc->ErrorCode = HAL_SMARTCARD_ERROR_DMA; | |
/* Stop SMARTCARD DMA Tx request if ongoing */ | |
dmarequest = HAL_IS_BIT_SET(hsc->Instance->CR3, USART_CR3_DMAT); | |
if((hsc->gState == HAL_SMARTCARD_STATE_BUSY_TX) && dmarequest) | |
{ | |
SMARTCARD_EndTxTransfer(hsc); | |
} | |
/* Stop SMARTCARD DMA Rx request if ongoing */ | |
dmarequest = HAL_IS_BIT_SET(hsc->Instance->CR3, USART_CR3_DMAR); | |
if((hsc->RxState == HAL_SMARTCARD_STATE_BUSY_RX) && dmarequest) | |
{ | |
SMARTCARD_EndRxTransfer(hsc); | |
} | |
HAL_SMARTCARD_ErrorCallback(hsc); | |
} | |
/** | |
* @brief This function handles SMARTCARD Communication Timeout. | |
* @param hsc SMARTCARD handle | |
* @param Flag specifies the SMARTCARD flag to check. | |
* @param Status The new Flag status (SET or RESET). | |
* @param Timeout Timeout duration | |
* @param Tickstart tick start value | |
* @retval HAL status | |
*/ | |
static HAL_StatusTypeDef SMARTCARD_WaitOnFlagUntilTimeout(SMARTCARD_HandleTypeDef *hsc, uint32_t Flag, FlagStatus Status, uint32_t Tickstart, uint32_t Timeout) | |
{ | |
/* Wait until flag is set */ | |
while((__HAL_SMARTCARD_GET_FLAG(hsc, Flag) ? SET : RESET) == Status) | |
{ | |
/* Check for the Timeout */ | |
if(Timeout != HAL_MAX_DELAY) | |
{ | |
if((Timeout == 0U)||((HAL_GetTick() - Tickstart ) > Timeout)) | |
{ | |
/* Disable TXE and RXNE interrupts for the interrupt process */ | |
CLEAR_BIT(hsc->Instance->CR1, USART_CR1_TXEIE); | |
CLEAR_BIT(hsc->Instance->CR1, USART_CR1_RXNEIE); | |
hsc->gState= HAL_SMARTCARD_STATE_READY; | |
hsc->RxState= HAL_SMARTCARD_STATE_READY; | |
/* Process Unlocked */ | |
__HAL_UNLOCK(hsc); | |
return HAL_TIMEOUT; | |
} | |
} | |
} | |
return HAL_OK; | |
} | |
/** | |
* @brief End ongoing Tx transfer on SMARTCARD peripheral (following error detection or Transmit completion). | |
* @param hsc SMARTCARD handle. | |
* @retval None | |
*/ | |
static void SMARTCARD_EndTxTransfer(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* At end of Tx process, restore hsc->gState to Ready */ | |
hsc->gState = HAL_SMARTCARD_STATE_READY; | |
/* Disable TXEIE and TCIE interrupts */ | |
CLEAR_BIT(hsc->Instance->CR1, (USART_CR1_TXEIE | USART_CR1_TCIE)); | |
} | |
/** | |
* @brief End ongoing Rx transfer on SMARTCARD peripheral (following error detection or Reception completion). | |
* @param hsc SMARTCARD handle. | |
* @retval None | |
*/ | |
static void SMARTCARD_EndRxTransfer(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
/* At end of Rx process, restore hsc->RxState to Ready */ | |
hsc->RxState = HAL_SMARTCARD_STATE_READY; | |
/* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */ | |
CLEAR_BIT(hsc->Instance->CR1, (USART_CR1_RXNEIE | USART_CR1_PEIE)); | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_EIE); | |
} | |
/** | |
* @brief Send an amount of data in non blocking mode | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @retval HAL status | |
*/ | |
static HAL_StatusTypeDef SMARTCARD_Transmit_IT(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
uint16_t* tmp; | |
/* Check that a Tx process is ongoing */ | |
if(hsc->gState == HAL_SMARTCARD_STATE_BUSY_TX) | |
{ | |
tmp = (uint16_t*) hsc->pTxBuffPtr; | |
hsc->Instance->DR = (uint16_t)(*tmp & (uint16_t)0x01FF); | |
hsc->pTxBuffPtr += 1U; | |
if(--hsc->TxXferCount == 0U) | |
{ | |
/* Disable the SMARTCARD Transmit data register empty Interrupt */ | |
CLEAR_BIT(hsc->Instance->CR1, USART_CR1_TXEIE); | |
/* Enable the SMARTCARD Transmit Complete Interrupt */ | |
SET_BIT(hsc->Instance->CR1, USART_CR1_TCIE); | |
} | |
return HAL_OK; | |
} | |
else | |
{ | |
return HAL_BUSY; | |
} | |
} | |
/** | |
* @brief Wraps up transmission in non blocking mode. | |
* @param hsmartcard pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for the specified SMARTCARD module. | |
* @retval HAL status | |
*/ | |
static HAL_StatusTypeDef SMARTCARD_EndTransmit_IT(SMARTCARD_HandleTypeDef *hsmartcard) | |
{ | |
/* Disable the SMARTCARD Transmit Complete Interrupt */ | |
CLEAR_BIT(hsmartcard->Instance->CR1, USART_CR1_TCIE); | |
/* Disable the SMARTCARD Error Interrupt: (Frame error, noise error, overrun error) */ | |
CLEAR_BIT(hsmartcard->Instance->CR3, USART_CR3_EIE); | |
/* Tx process is ended, restore hsmartcard->gState to Ready */ | |
hsmartcard->gState = HAL_SMARTCARD_STATE_READY; | |
HAL_SMARTCARD_TxCpltCallback(hsmartcard); | |
return HAL_OK; | |
} | |
/** | |
* @brief Receive an amount of data in non blocking mode | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @retval HAL status | |
*/ | |
static HAL_StatusTypeDef SMARTCARD_Receive_IT(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
uint16_t* tmp; | |
/* Check that a Rx process is ongoing */ | |
if(hsc->RxState == HAL_SMARTCARD_STATE_BUSY_RX) | |
{ | |
tmp = (uint16_t*) hsc->pRxBuffPtr; | |
*tmp = (uint8_t)(hsc->Instance->DR & (uint8_t)0x00FF); | |
hsc->pRxBuffPtr += 1U; | |
if(--hsc->RxXferCount == 0U) | |
{ | |
CLEAR_BIT(hsc->Instance->CR1, USART_CR1_RXNEIE); | |
/* Disable the SMARTCARD Parity Error Interrupt */ | |
CLEAR_BIT(hsc->Instance->CR1, USART_CR1_PEIE); | |
/* Disable the SMARTCARD Error Interrupt: (Frame error, noise error, overrun error) */ | |
CLEAR_BIT(hsc->Instance->CR3, USART_CR3_EIE); | |
/* Rx process is completed, restore hsc->RxState to Ready */ | |
hsc->RxState = HAL_SMARTCARD_STATE_READY; | |
HAL_SMARTCARD_RxCpltCallback(hsc); | |
return HAL_OK; | |
} | |
return HAL_OK; | |
} | |
else | |
{ | |
return HAL_BUSY; | |
} | |
} | |
/** | |
* @brief DMA SMARTCARD communication abort callback, when initiated 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 SMARTCARD_DMAAbortOnError(DMA_HandleTypeDef *hdma) | |
{ | |
SMARTCARD_HandleTypeDef* hsc = (SMARTCARD_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; | |
hsc->RxXferCount = 0x00U; | |
hsc->TxXferCount = 0x00U; | |
HAL_SMARTCARD_ErrorCallback(hsc); | |
} | |
/** | |
* @brief DMA SMARTCARD Tx communication abort callback, when initiated by user | |
* (To be called at end of DMA Tx Abort procedure following user abort request). | |
* @note When this callback is executed, User Abort complete call back is called only if no | |
* Abort still ongoing for Rx DMA Handle. | |
* @param hdma DMA handle. | |
* @retval None | |
*/ | |
static void SMARTCARD_DMATxAbortCallback(DMA_HandleTypeDef *hdma) | |
{ | |
SMARTCARD_HandleTypeDef* hsc = ( SMARTCARD_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; | |
hsc->hdmatx->XferAbortCallback = NULL; | |
/* Check if an Abort process is still ongoing */ | |
if(hsc->hdmarx != NULL) | |
{ | |
if(hsc->hdmarx->XferAbortCallback != NULL) | |
{ | |
return; | |
} | |
} | |
/* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */ | |
hsc->TxXferCount = 0x00U; | |
hsc->RxXferCount = 0x00U; | |
/* Reset ErrorCode */ | |
hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; | |
/* Restore hsc->gState and hsc->RxState to Ready */ | |
hsc->gState = HAL_SMARTCARD_STATE_READY; | |
hsc->RxState = HAL_SMARTCARD_STATE_READY; | |
/* Call user Abort complete callback */ | |
HAL_SMARTCARD_AbortCpltCallback(hsc); | |
} | |
/** | |
* @brief DMA SMARTCARD Rx communication abort callback, when initiated by user | |
* (To be called at end of DMA Rx Abort procedure following user abort request). | |
* @note When this callback is executed, User Abort complete call back is called only if no | |
* Abort still ongoing for Tx DMA Handle. | |
* @param hdma DMA handle. | |
* @retval None | |
*/ | |
static void SMARTCARD_DMARxAbortCallback(DMA_HandleTypeDef *hdma) | |
{ | |
SMARTCARD_HandleTypeDef* hsc = ( SMARTCARD_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; | |
hsc->hdmarx->XferAbortCallback = NULL; | |
/* Check if an Abort process is still ongoing */ | |
if(hsc->hdmatx != NULL) | |
{ | |
if(hsc->hdmatx->XferAbortCallback != NULL) | |
{ | |
return; | |
} | |
} | |
/* No Abort process still ongoing : All DMA channels are aborted, call user Abort Complete callback */ | |
hsc->TxXferCount = 0x00U; | |
hsc->RxXferCount = 0x00U; | |
/* Reset ErrorCode */ | |
hsc->ErrorCode = HAL_SMARTCARD_ERROR_NONE; | |
/* Restore hsc->gState and hsc->RxState to Ready */ | |
hsc->gState = HAL_SMARTCARD_STATE_READY; | |
hsc->RxState = HAL_SMARTCARD_STATE_READY; | |
/* Call user Abort complete callback */ | |
HAL_SMARTCARD_AbortCpltCallback(hsc); | |
} | |
/** | |
* @brief DMA SMARTCARD Tx communication abort callback, when initiated by user by a call to | |
* HAL_SMARTCARD_AbortTransmit_IT API (Abort only Tx transfer) | |
* (This callback is executed at end of DMA Tx Abort procedure following user abort request, | |
* and leads to user Tx Abort Complete callback execution). | |
* @param hdma DMA handle. | |
* @retval None | |
*/ | |
static void SMARTCARD_DMATxOnlyAbortCallback(DMA_HandleTypeDef *hdma) | |
{ | |
SMARTCARD_HandleTypeDef* hsc = ( SMARTCARD_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; | |
hsc->TxXferCount = 0x00U; | |
/* Restore hsc->gState to Ready */ | |
hsc->gState = HAL_SMARTCARD_STATE_READY; | |
/* Call user Abort complete callback */ | |
HAL_SMARTCARD_AbortTransmitCpltCallback(hsc); | |
} | |
/** | |
* @brief DMA SMARTCARD Rx communication abort callback, when initiated by user by a call to | |
* HAL_SMARTCARD_AbortReceive_IT API (Abort only Rx transfer) | |
* (This callback is executed at end of DMA Rx Abort procedure following user abort request, | |
* and leads to user Rx Abort Complete callback execution). | |
* @param hdma DMA handle. | |
* @retval None | |
*/ | |
static void SMARTCARD_DMARxOnlyAbortCallback(DMA_HandleTypeDef *hdma) | |
{ | |
SMARTCARD_HandleTypeDef* hsc = ( SMARTCARD_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent; | |
hsc->RxXferCount = 0x00U; | |
/* Restore hsc->RxState to Ready */ | |
hsc->RxState = HAL_SMARTCARD_STATE_READY; | |
/* Call user Abort complete callback */ | |
HAL_SMARTCARD_AbortReceiveCpltCallback(hsc); | |
} | |
/** | |
* @brief Configure the SMARTCARD peripheral | |
* @param hsc pointer to a SMARTCARD_HandleTypeDef structure that contains | |
* the configuration information for SMARTCARD module. | |
* @retval None | |
*/ | |
static void SMARTCARD_SetConfig(SMARTCARD_HandleTypeDef *hsc) | |
{ | |
uint32_t tmpreg = 0x00U; | |
/* Check the parameters */ | |
assert_param(IS_SMARTCARD_INSTANCE(hsc->Instance)); | |
assert_param(IS_SMARTCARD_POLARITY(hsc->Init.CLKPolarity)); | |
assert_param(IS_SMARTCARD_PHASE(hsc->Init.CLKPhase)); | |
assert_param(IS_SMARTCARD_LASTBIT(hsc->Init.CLKLastBit)); | |
assert_param(IS_SMARTCARD_BAUDRATE(hsc->Init.BaudRate)); | |
assert_param(IS_SMARTCARD_WORD_LENGTH(hsc->Init.WordLength)); | |
assert_param(IS_SMARTCARD_STOPBITS(hsc->Init.StopBits)); | |
assert_param(IS_SMARTCARD_PARITY(hsc->Init.Parity)); | |
assert_param(IS_SMARTCARD_MODE(hsc->Init.Mode)); | |
assert_param(IS_SMARTCARD_NACK_STATE(hsc->Init.NACKState)); | |
/* The LBCL, CPOL and CPHA bits have to be selected when both the transmitter and the | |
receiver are disabled (TE=RE=0) to ensure that the clock pulses function correctly. */ | |
CLEAR_BIT(hsc->Instance->CR1, (USART_CR1_TE | USART_CR1_RE)); | |
/*---------------------------- USART CR2 Configuration ---------------------*/ | |
tmpreg = hsc->Instance->CR2; | |
/* Clear CLKEN, CPOL, CPHA and LBCL bits */ | |
tmpreg &= (uint32_t)~((uint32_t)(USART_CR2_CPHA | USART_CR2_CPOL | USART_CR2_CLKEN | USART_CR2_LBCL)); | |
/* Configure the SMARTCARD Clock, CPOL, CPHA and LastBit -----------------------*/ | |
/* Set CPOL bit according to hsc->Init.CLKPolarity value */ | |
/* Set CPHA bit according to hsc->Init.CLKPhase value */ | |
/* Set LBCL bit according to hsc->Init.CLKLastBit value */ | |
/* Set Stop Bits: Set STOP[13:12] bits according to hsc->Init.StopBits value */ | |
tmpreg |= (uint32_t)(USART_CR2_CLKEN | hsc->Init.CLKPolarity | | |
hsc->Init.CLKPhase| hsc->Init.CLKLastBit | hsc->Init.StopBits); | |
/* Write to USART CR2 */ | |
WRITE_REG(hsc->Instance->CR2, (uint32_t)tmpreg); | |
tmpreg = hsc->Instance->CR2; | |
/* Clear STOP[13:12] bits */ | |
tmpreg &= (uint32_t)~((uint32_t)USART_CR2_STOP); | |
/* Set Stop Bits: Set STOP[13:12] bits according to hsc->Init.StopBits value */ | |
tmpreg |= (uint32_t)(hsc->Init.StopBits); | |
/* Write to USART CR2 */ | |
WRITE_REG(hsc->Instance->CR2, (uint32_t)tmpreg); | |
/*-------------------------- USART CR1 Configuration -----------------------*/ | |
tmpreg = hsc->Instance->CR1; | |
/* Clear M, PCE, PS, TE and RE bits */ | |
tmpreg &= (uint32_t)~((uint32_t)(USART_CR1_M | USART_CR1_PCE | USART_CR1_PS | USART_CR1_TE | \ | |
USART_CR1_RE)); | |
/* Configure the SMARTCARD Word Length, Parity and mode: | |
Set the M bits according to hsc->Init.WordLength value | |
Set PCE and PS bits according to hsc->Init.Parity value | |
Set TE and RE bits according to hsc->Init.Mode value */ | |
tmpreg |= (uint32_t)hsc->Init.WordLength | hsc->Init.Parity | hsc->Init.Mode; | |
/* Write to USART CR1 */ | |
WRITE_REG(hsc->Instance->CR1, (uint32_t)tmpreg); | |
/*-------------------------- USART CR3 Configuration -----------------------*/ | |
/* Clear CTSE and RTSE bits */ | |
CLEAR_BIT(hsc->Instance->CR3, (USART_CR3_RTSE | USART_CR3_CTSE)); | |
/*-------------------------- USART BRR Configuration -----------------------*/ | |
#if defined(USART6) | |
if((hsc->Instance == USART1) || (hsc->Instance == USART6)) | |
{ | |
hsc->Instance->BRR = SMARTCARD_BRR(HAL_RCC_GetPCLK2Freq(), hsc->Init.BaudRate); | |
} | |
#else | |
if(hsc->Instance == USART1) | |
{ | |
hsc->Instance->BRR = SMARTCARD_BRR(HAL_RCC_GetPCLK2Freq(), hsc->Init.BaudRate); | |
} | |
#endif /* USART6 */ | |
else | |
{ | |
hsc->Instance->BRR = SMARTCARD_BRR(HAL_RCC_GetPCLK1Freq(), hsc->Init.BaudRate); | |
} | |
} | |
/** | |
* @} | |
*/ | |
#endif /* HAL_SMARTCARD_MODULE_ENABLED */ | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |