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rt-thread-official/bsp/acm32f4xx-nucleo/libraries/HAL_Driver/Src/HAL_UART.c

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ACM32F4XX bsp add
2021-09-22 17:14:47 +08:00
/*
******************************************************************************
* @file HAL_Uart.c
* @version V1.0.0
* @date 2020
* @brief UART HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the Universal Asynchronous Receiver Transmitter Peripheral (UART).
* @ Initialization and de-initialization functions
* @ IO operation functions
* @ Peripheral Control functions
******************************************************************************
*/
#include "ACM32Fxx_HAL.h"
/* If Use 'UART_MODE_TX_RX_DEBUG', Point to Debug Uart */
UART_TypeDef *Uart_Debug = NULL;
/* Private function prototypes -----------------------------------------------*/
static void UART_Config_BaudRate(UART_HandleTypeDef *huart);
static HAL_StatusTypeDef HAL_UART_Wait_Tx_Done(UART_HandleTypeDef *huart);
__weak void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart);
__weak void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart);
__weak void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart);
/*********************************************************************************
* Function : HAL_UART_IRQHandler
* Description : Handle UART interrupt request.
* Input : huart: UART handle.
* Output :
* Author : Chris_Kyle Data : 2020
**********************************************************************************/
void HAL_UART_IRQHandler(UART_HandleTypeDef *huart)
{
uint32_t read_bytes_number;
#if (USE_FULL_ASSERT == 1)
if (!IS_UART_ALL_INSTANCE(huart->Instance)) return;
#endif
uint32_t isrflags =READ_REG(huart->Instance->RIS);
uint32_t ieits =READ_REG(huart->Instance->IE);
uint32_t errorflags =0x00U;
errorflags =(isrflags & (uint32_t)(UART_ICR_PEI|UART_ICR_OEI|UART_ICR_FEI|UART_ICR_BEI));
/* Enable TXI */
if (huart->Instance->IE & UART_IE_TXI)
{
if (huart->Instance->RIS & UART_RIS_TXI)
{
/* Clear TXI Status */
SET_BIT(huart->Instance->ICR , UART_ICR_TXI);
for(;;)
{
if(huart->lu32_TxCount == huart->lu32_TxSize)
{
huart->lu8_TxBusy = false;
/* Disable TX interrupt */
CLEAR_BIT(huart->Instance->IE, UART_IE_TXI);
HAL_UART_TxCpltCallback(huart);
break;
}
if (READ_BIT(huart->Instance->FR, UART_FR_TXFF))
{
break;
}
huart->Instance->DR = huart->lu8_TxData[huart->lu32_TxCount++];
}
}
}
/* RXI */
if ((huart->Instance->IE & UART_IE_RXI || huart->Instance->IE& UART_IE_RTI) && errorflags == 0)
{
if (huart->Instance->RIS & UART_RIS_RXI)
{
read_bytes_number = 0;
/* Clear RXI Status */
SET_BIT(huart->Instance->ICR, UART_ICR_RXI);
/* Receive end */
while(huart->lu32_RxCount <huart->lu32_RxSize )
{
if(!READ_BIT(huart->Instance->FR, UART_FR_RXFE))
{
/* Store Data in buffer */
huart->lu8_RxData[huart->lu32_RxCount++] = huart->Instance->DR;
read_bytes_number++;
}
else
{
break;
}
if (read_bytes_number == huart->lu32_fifo_level_minus1)
{
break;
}
}
if(huart->lu32_RxCount ==huart->lu32_RxSize )
{
huart->lu8_RxBusy = false;
/* Disable RX and RTI interrupt */
CLEAR_BIT(huart->Instance->IE, (UART_IE_RXI|UART_IE_RTI));
/* clear error interrupt */
CLEAR_BIT(huart->Instance->IE, UART_IE_OEI|UART_IE_BEI|UART_IE_PEI|UART_IE_FEI);
HAL_UART_RxCpltCallback(huart);
}
}
else if(huart->Instance->RIS & UART_RIS_RTI)
{
/*clear RTI Status */
SET_BIT(huart->Instance->ICR ,UART_ICR_RTI);
while(!READ_BIT(huart->Instance->FR, UART_FR_RXFE))
{
huart->lu8_RxData[huart->lu32_RxCount++] = huart->Instance->DR;
}
huart->lu8_RxBusy = false;
/* Disable RX and RTI interrupt */
CLEAR_BIT(huart->Instance->IE, (UART_IE_RXI|UART_IE_RTI));
/* clear error interrupt */
CLEAR_BIT(huart->Instance->IE, UART_IE_OEI|UART_IE_BEI|UART_IE_PEI|UART_IE_FEI);
HAL_UART_RxCpltCallback(huart);
}
}
/* if some errors occurred */
if(errorflags != 0 &&(ieits & (UART_IE_OEI|UART_IE_BEI|UART_IE_PEI|UART_IE_FEI)))
{
/* UART parity error interrupt occurred */
if (((isrflags & UART_RIS_PEI) != 0) && ((ieits & UART_IE_PEI) != 0))
{
/* Clear parity error status */
SET_BIT(huart->Instance->ICR, UART_ICR_PEI);
huart->ErrorCode |= HAL_UART_ERROR_PE;
}
/* UART break error interrupt occurred */
if (((isrflags & UART_RIS_BEI) != 0) && ((ieits & UART_IE_BEI) != 0))
{
SET_BIT(huart->Instance->ICR, UART_RIS_BEI);
huart->ErrorCode |= HAL_UART_ERROR_NE;
}
/* UART frame error interrupt occurred */
if (((isrflags & UART_RIS_FEI) != 0) && ((ieits & UART_IE_FEI) != 0))
{
SET_BIT(huart->Instance->ICR, UART_RIS_FEI);
huart->ErrorCode |= HAL_UART_ERROR_FE;
}
/* UART Over-Run interrupt occurred */
if (((isrflags & UART_RIS_OEI) != 0) && ((ieits & UART_IE_OEI) != 0))
{
SET_BIT(huart->Instance->ICR, UART_RIS_OEI);
huart->ErrorCode |= HAL_UART_ERROR_ORE;
}
/* clear error interrupt */
CLEAR_BIT(huart->Instance->IE, UART_IE_OEI|UART_IE_BEI|UART_IE_PEI|UART_IE_FEI);
HAL_UART_ErrorCallback(huart);
}
}
/*********************************************************************************
* Function : HAL_UART_Wait_Tx_Done
* Description : wait Tx FIFO empty
* Input : huart: UART handle.
* Output :
**********************************************************************************/
static HAL_StatusTypeDef HAL_UART_Wait_Tx_Done(UART_HandleTypeDef *huart)
{
#if (USE_FULL_ASSERT == 1)
if (!IS_UART_ALL_INSTANCE(huart->Instance)) return HAL_ERROR;
#endif
/* wait FIFO empty */
while(READ_BIT(huart->Instance->FR, UART_FR_BUSY));
return HAL_OK;
}
/*********************************************************************************
* Function : HAL_UART_MspInit
* Description : Initialize the UART MSP.
* Input : huart: UART handle.
* Output :
* Author : Chris_Kyle Data : 2020
**********************************************************************************/
__weak void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
/*
NOTE: This function should be modified, when the callback is needed,
the HAL_UART_MspInit can be implemented in the user file.
*/
/* For Example */
GPIO_InitTypeDef GPIO_Uart1;
if (huart->Instance == UART1)
{
/* Enable Clock */
System_Module_Enable(EN_UART1);
//System_Module_Enable(EN_GPIOAB);
/* Initialization GPIO */
/* A9:Tx A10:Rx */
GPIO_Uart1.Pin = GPIO_PIN_9 | GPIO_PIN_10;
GPIO_Uart1.Mode = GPIO_MODE_AF_PP;
GPIO_Uart1.Pull = GPIO_PULLUP;
GPIO_Uart1.Alternate = GPIO_FUNCTION_2;
HAL_GPIO_Init(GPIOA, &GPIO_Uart1);
if (huart->Init.HwFlowCtl & UART_HWCONTROL_CTS)
{
/* A11:CTS */
GPIO_Uart1.Pin = GPIO_PIN_11;
HAL_GPIO_Init(GPIOA, &GPIO_Uart1);
}
if (huart->Init.HwFlowCtl & UART_HWCONTROL_RTS)
{
/* A12:RTS */
GPIO_Uart1.Pin = GPIO_PIN_12;
HAL_GPIO_Init(GPIOA, &GPIO_Uart1);
}
/* NVIC Config */
NVIC_ClearPendingIRQ(UART1_IRQn);
NVIC_SetPriority(UART1_IRQn, 5);
NVIC_EnableIRQ(UART1_IRQn);
}
}
/*********************************************************************************
* Function : HAL_UART_Init
* Description : Initialize the UART mode according to the specified parameters
* in the UART_InitTypeDef
* Input : huart: UART handle.
* Output :
* Author : Chris_Kyle Data : 2020
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart)
{
#if (USE_FULL_ASSERT == 1)
if (!IS_UART_ALL_INSTANCE(huart->Instance)) return HAL_ERROR;
if (!IS_UART_WORDLENGTH(huart->Init.WordLength)) return HAL_ERROR;
if (!IS_UART_STOPBITS(huart->Init.StopBits)) return HAL_ERROR;
if (!IS_UART_PARITY(huart->Init.Parity)) return HAL_ERROR;
if (!IS_UART_MODE(huart->Init.Mode)) return HAL_ERROR;
if (!IS_UART_HARDWARE_FLOW_CONTROL(huart->Init.HwFlowCtl)) return HAL_ERROR;
#endif
/* Init the low level hardware : GPIO, CLOCK, NVIC */
HAL_UART_MspInit(huart);
/* Config BaudRate */
UART_Config_BaudRate(huart);
/* Set the UART Communication parameters */
//huart->Instance->LCRH = huart->Init.WordLength | UART_LCRH_FEN | huart->Init.StopBits | huart->Init.Parity;
huart->Instance->LCRH = huart->Init.WordLength | huart->Init.StopBits | huart->Init.Parity;
huart->Instance->CR = huart->Init.HwFlowCtl | huart->Init.Mode | UART_CR_UARTEN;
if (huart->Init.Mode == UART_MODE_TX_RX_DEBUG)
{
Uart_Debug = huart->Instance;
}
else if (huart->Init.Mode == UART_MODE_HALF_DUPLEX)
{
huart->Instance->CR2 = UART_CR2_TXOE_SEL;
}
return HAL_OK;
}
/*********************************************************************************
* Function : HAL_UART_MspDeInit
* Description : DeInitialize the UART MSP.
* Input : huart: UART handle.
* Output :
**********************************************************************************/
__weak void HAL_UART_MspDeInit(UART_HandleTypeDef *huart)
{
/*
NOTE: This function should be modified, when the callback is needed,
the HAL_UART_MspDeInit can be implemented in the user file.
*/
if (huart->Instance == UART1)
{
/* Disable Clock */
System_Module_Disable(EN_UART1);
/* DeInitialization GPIO */
/* A9:Tx A10:Rx */
HAL_GPIO_DeInit(GPIOA,GPIO_PIN_9 | GPIO_PIN_10);
if (huart->Init.HwFlowCtl & UART_HWCONTROL_CTS)
{
/* A11:CTS */
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_11);
}
if (huart->Init.HwFlowCtl & UART_HWCONTROL_RTS)
{
/* A12:RTS */
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_12);
}
/* NVIC DeInit */
NVIC_DisableIRQ(UART1_IRQn);
}
else if(huart->Instance == UART2)
{
}
}
/*********************************************************************************
* Function : HAL_UART_Init
* Description : Initialize the UART mode according to the specified parameters
* in the UART_InitTypeDef
* Input : huart: UART handle.
* Output :
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart)
{
#if (USE_FULL_ASSERT == 1)
if (!IS_UART_ALL_INSTANCE(huart->Instance)) return HAL_ERROR;
#endif
/* DeInit the low level hardware : GPIO, CLOCK, NVIC */
HAL_UART_MspDeInit(huart);
return HAL_OK;
}
/*********************************************************************************
* Function : HAL_UART_Transmit
* Description : Send an amount of data in blocking mode.
* Input : huart: UART handle.
* Input : fu8_Data: Pointer to data buffer.
* Input : fu32_Size: Amount of data elements to be sent.
* Input : fu32_Timeout: Timeout duration.
* Output : HAL status
* Author : Chris_Kyle Data : 2020
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *fu8_Data, uint32_t fu32_Size, uint32_t fu32_Timeout)
{
uint32_t lu32_Timeout;
#if (USE_FULL_ASSERT == 1)
if (!IS_UART_ALL_INSTANCE(huart->Instance)) return HAL_ERROR;
#endif
huart->lu32_TxCount = 0;
while (fu32_Size--)
{
huart->Instance->DR = *fu8_Data++;
huart->lu32_TxCount++;
/* have no timeout */
if (fu32_Timeout == 0)
{
while (huart->Instance->FR & UART_FR_TXFF);
}
else
{
lu32_Timeout = fu32_Timeout *256;
while (huart->Instance->FR & UART_FR_TXFF)
{
if (lu32_Timeout-- == 0)
{
return HAL_TIMEOUT;
}
}
}
}
while ((huart->Instance->FR & UART_FR_BUSY));
return HAL_OK;
}
/*********************************************************************************
* Function : HAL_UART_Receive
* Description : Receive an amount of data in blocking mode.
* Input : huart: UART handle.
* Input : fu8_Data: Pointer to data buffer.
* Input : fu32_Size: Amount of data elements to be receive.
* Input : fu32_Timeout: Timeout duration.
* Output : HAL status
* Author : Chris_Kyle Data : 2020
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *fu8_Data, uint32_t fu32_Size, uint32_t fu32_Timeout)
{
uint32_t lu32_Timeout;
#if (USE_FULL_ASSERT == 1)
if (!IS_UART_ALL_INSTANCE(huart->Instance)) return HAL_ERROR;
#endif
huart->lu32_RxCount = 0;
/* Half duplex Use Tx GPIO Receive Data */
if (huart->Init.Mode == UART_MODE_HALF_DUPLEX)
{
huart->Instance->CR2 |= UART_CR2_RX_SEL;
}
while (fu32_Size--)
{
if (fu32_Timeout == 0)
{
while(huart->Instance->FR & UART_FR_RXFE);
*fu8_Data++ = huart->Instance->DR;
huart->lu32_RxCount++;
}
else
{
lu32_Timeout = fu32_Timeout * 256;
while(huart->Instance->FR & UART_FR_RXFE)
{
if (lu32_Timeout-- == 0)
{
/* Clear Half duplex */
huart->Instance->CR2 &= ~UART_CR2_RX_SEL;
return HAL_TIMEOUT;
}
}
*fu8_Data++ = huart->Instance->DR;
huart->lu32_RxCount++;
}
}
/* Clear Half duplex */
huart->Instance->CR2 &= ~UART_CR2_RX_SEL;
return HAL_OK;
}
/*********************************************************************************
* Function : HAL_UART_Transmit_IT
* Description : Send an amount of data in interrupt mode.
* Input : huart: UART handle.
* Input : fu8_Data: Pointer to data buffer.
* Input : fu32_Size: Amount of data elements to be receive.
* Output :
* Author : Chris_Kyle Data : 2020
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *fu8_Data, uint32_t fu32_Size)
{
#if (USE_FULL_ASSERT == 1)
if (!IS_UART_ALL_INSTANCE(huart->Instance)) return HAL_ERROR;
#endif
if (huart->lu8_TxBusy == true)
{
return HAL_BUSY;
}
if (fu32_Size == 0 || fu8_Data == NULL)
{
return HAL_ERROR;
}
huart->lu32_TxSize = fu32_Size;
huart->lu32_TxCount = 0;
huart->lu8_TxData = fu8_Data;
huart->lu8_TxBusy = true;
/* Clear TXI Status */
huart->Instance->ICR = UART_ICR_TXI;
/* FIFO Enable */
SET_BIT(huart->Instance->LCRH, UART_LCRH_FEN);
/*FIFO Select*/
SET_BIT(huart->Instance->IFLS,UART_TX_FIFO_1_2);
for(;;)
{
/*Data Size less than 16Byte */
if(fu32_Size == huart->lu32_TxCount)
{
huart->lu8_TxBusy = false;
while ((huart->Instance->FR & UART_FR_BUSY)){}
HAL_UART_TxCpltCallback(huart);
return HAL_OK;
}
if(READ_BIT(huart->Instance->FR, UART_FR_TXFF))
{
break;
}
huart->Instance->DR = huart->lu8_TxData[huart->lu32_TxCount++];
}
/* Enable TX interrupt */
huart->Instance->IE |= UART_IE_TXI;
return HAL_OK;
}
/*********************************************************************************
* Function : HAL_UART_Receive_IT
* Description : Receive an amount of data in interrupt mode.
* Input :
* Output :
* Author : Chris_Kyle Data : 2020
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *fu8_Data, uint32_t fu32_Size)
{
#if (USE_FULL_ASSERT == 1)
if (!IS_UART_ALL_INSTANCE(huart->Instance)) return HAL_ERROR;
#endif
if (huart->lu8_RxBusy == true)
{
return HAL_BUSY;
}
if (fu32_Size == 0 || fu8_Data == NULL)
{
return HAL_ERROR;
}
huart->lu32_RxSize = fu32_Size;
huart->lu32_RxCount = 0;
huart->lu8_RxData = fu8_Data;
huart->lu8_RxBusy = true;
/* Clear RXI Status */
huart->Instance->ICR = UART_ICR_RXI;
/* FIFO Enable */
SET_BIT(huart->Instance->LCRH, UART_LCRH_FEN);
/*FIFO Select*/
MODIFY_REG(huart->Instance->IFLS, UART_IFLS_RXIFLSEL, UART_RX_FIFO_1_2);
huart->lu32_fifo_level_minus1 = 8-1; // 16/2 - 1
/* Enable the UART Errors interrupt */
SET_BIT(huart->Instance->IE,UART_IE_OEI|UART_IE_BEI|UART_IE_PEI|UART_IE_FEI);
/* Enable RX and RTI interrupt */
SET_BIT(huart->Instance->IE,UART_IE_RXI|UART_IE_RTI);
return HAL_OK;
}
/*********************************************************************************
* Function : HAL_UART_Transmit_DMA
* Description : Send an amount of data in DMA mode.
* Input : huart: UART handle.
* Input : fu8_Data: Pointer to data buffer.
* Input : fu32_Size: Amount of data elements to be Send.
* Output :
* Author : Chris_Kyle Data : 2020
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, uint8_t *fu8_Data, uint32_t fu32_Size)
{
#if (USE_FULL_ASSERT == 1)
if (!IS_UART_ALL_INSTANCE(huart->Instance)) return HAL_ERROR;
#endif
if (huart->lu8_TxBusy == true)
{
return HAL_BUSY;
}
if (fu32_Size == 0 || fu8_Data == NULL)
{
return HAL_ERROR;
}
huart->Instance->DMACR |= UART_DMACR_TXDMAE;
if (HAL_DMA_Start_IT(huart->HDMA_Tx, (uint32_t)fu8_Data, (uint32_t)(&huart->Instance->DR), fu32_Size))
{
return HAL_ERROR;
}
return HAL_OK;
}
/*********************************************************************************
<<<<<<< .mine
* Function : HAL_UART_Receive_DMA
* Description : Receive an amount of data in DMA mode.
* Input : huart: UART handle.
* Input : fu8_Data: Pointer to data buffer.
* Input : fu32_Size: Amount of data elements to be receive.
* Output :
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *fu8_Data, uint32_t fu32_Size)
{
#if (USE_FULL_ASSERT == 1)
if (!IS_UART_ALL_INSTANCE(huart->Instance)) return HAL_ERROR;
#endif
if (huart->lu8_RxBusy == true)
{
return HAL_BUSY;
}
if (fu32_Size == 0 || fu8_Data == NULL)
{
return HAL_ERROR;
}
huart->Instance->DMACR |= UART_DMACR_RXDMAE;
if (HAL_DMA_Start_IT(huart->HDMA_Rx, (uint32_t)(&huart->Instance->DR), (uint32_t)fu8_Data, fu32_Size))
{
return HAL_ERROR;
}
return HAL_OK;
}
/*********************************************************************************
* Function : HAL_UART_TxCpltCallback
* Description : Tx Transfer completed callbacks.
* Input :
* Output :
* Author : Chris_Kyle Data : 2020
**********************************************************************************/
__weak void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
{
/*
NOTE: This function Should be modified, when the callback is needed,
the HAL_UART_TxCpltCallback could be implemented in the user file.
*/
}
/*********************************************************************************
* Function : HAL_UART_RxCpltCallback
* Description : Rx Transfer completed callbacks.
* Input :
* Output :
* Author : Chris_Kyle Data : 2020
**********************************************************************************/
__weak void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
/*
NOTE: This function Should be modified, when the callback is needed,
the HAL_UART_RxCpltCallback could be implemented in the user file.
*/
}
/*********************************************************************************
* Function : HAL_UART_ErrorCallBack
* Description : Recv Error callbacks.
* Input :
* Output :
**********************************************************************************/
__weak void HAL_UART_ErrorCallBack(UART_HandleTypeDef *huart)
{
/*
NOTE: This function Should be modified, when the callback is needed,
the HAL_UART_ErrorCallBack could be implemented in the user file.
*/
}
/*********************************************************************************
* Function : UART_Config_BaudRate
* Description : Config BaudRate
* Input :
* Output :
* Author : Chris_Kyle Data : 2020
**********************************************************************************/
static void UART_Config_BaudRate(UART_HandleTypeDef *huart)
{
uint32_t lu32_PCLK;
uint32_t lu32_IBAUD, lu32_FBAUD;
uint64_t lu64_TempValue;
lu32_PCLK = System_Get_APBClock();
/* Integral part */
lu32_IBAUD = lu32_PCLK / (huart->Init.BaudRate * 16);
/* Fractional part */
lu64_TempValue = lu32_PCLK % (huart->Init.BaudRate * 16);
lu64_TempValue = (lu64_TempValue * 1000000) / (huart->Init.BaudRate * 16);
lu32_FBAUD = (lu64_TempValue * 64 + 500000) / 1000000;
if (lu32_FBAUD >= 64)
{
huart->Instance->IBRD = lu32_IBAUD + 1;
huart->Instance->FBRD = 0;
}
else
{
huart->Instance->IBRD = lu32_IBAUD;
huart->Instance->FBRD = lu32_FBAUD;
}
}
/*********************************************************************************
* Function : HAL_UART_GetState
* Description : Return the uart State
* Input :
* Output :
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart)
{
#if (USE_FULL_ASSERT == 1)
if (!IS_UART_ALL_INSTANCE(huart->Instance)) return HAL_ERROR;
#endif
if(huart->lu8_TxBusy || huart->lu8_RxBusy)
{
return HAL_BUSY;
}
return HAL_OK;
}
/*********************************************************************************
* Function : HAL_UART_GetError
* Description : Return the uart Error
* Input :
* Output :
**********************************************************************************/
uint32_t HAL_UART_GetError(UART_HandleTypeDef *huart)
{
return huart->ErrorCode;
}
/*********************************************************************************
* Function : HAL_UART_Abort
* Description : Abort ongoing transfers(blocking mode)
* Input : UART handle
* Output :
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_Abort(UART_HandleTypeDef *huart)
{
#if (USE_FULL_ASSERT == 1)
if (!IS_UART_ALL_INSTANCE(huart->Instance)) return HAL_ERROR;
#endif
/*disble all interrupt*/
huart->Instance->IE =0x00;
/* Disable the UART DMA Tx request if enable */
if(READ_BIT(huart->Instance->DMACR, UART_DMACR_TXDMAE))
{
CLEAR_BIT(huart->Instance->DMACR, UART_DMACR_TXDMAE);
/* Abort the UART Tx Channel */
if(huart->HDMA_Tx)
{
/*Set the UART DMA Abort callback to Null */
huart->HDMA_Tx->DMA_ITC_Callback =NULL;
if(HAL_DMA_Abort(huart->HDMA_Tx)!=HAL_OK)
{
return HAL_TIMEOUT;
}
}
}
/* Disable the UART DMA Rx request if enable */
if(READ_BIT(huart->Instance->DMACR, UART_DMACR_RXDMAE))
{
CLEAR_BIT(huart->Instance->DMACR, UART_DMACR_RXDMAE);
/* Abort the UART Rx Channel */
if(huart->HDMA_Rx)
{
/*Set the UART DMA Abort callback to Null */
huart->HDMA_Rx->DMA_ITC_Callback =NULL;
if(HAL_DMA_Abort(huart->HDMA_Rx)!=HAL_OK)
{
return HAL_TIMEOUT;
}
}
}
/*Reset Tx and Rx Transfer size*/
huart->lu32_TxSize = 0;
huart->lu32_RxSize = 0;
/* Restore huart->lu8_TxBusy and huart->lu8_RxBusy to Ready */
huart->lu8_TxBusy = false;
huart->lu8_RxBusy = false;
return HAL_OK;
}
/*********************************************************************************
* Function : HAL_UART_DMAPause
* Description : Pause the DMA Transfer
* Input : UART handle
* Output :
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart)
{
#if (USE_FULL_ASSERT == 1)
if (!IS_UART_ALL_INSTANCE(huart->Instance)) return HAL_ERROR;
#endif
if(READ_BIT(huart->Instance->DMACR, UART_DMACR_TXDMAE))
{
/* Disable the UART DMA Tx request */
CLEAR_BIT(huart->Instance->DMACR, UART_DMACR_TXDMAE);
}
if (READ_BIT(huart->Instance->DMACR, UART_DMACR_RXDMAE))
{
/* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
CLEAR_BIT(huart->Instance->IE, UART_IE_OEI|UART_IE_BEI|UART_IE_FEI);
/* Disable the UART DMA Rx request */
CLEAR_BIT(huart->Instance->DMACR, UART_DMACR_RXDMAE);
}
return HAL_OK;
}
/*********************************************************************************
* Function : HAL_UART_DMAResume
* Description : Resume the DMA Transfer
* Input : UART handle
* Output :
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart)
{
#if (USE_FULL_ASSERT == 1)
if (!IS_UART_ALL_INSTANCE(huart->Instance)) return HAL_ERROR;
#endif
if (huart->lu8_TxBusy == false)
{
/* Enable the UART DMA Tx request */
SET_BIT(huart->Instance->DMACR, UART_DMACR_TXDMAE);
}
if (huart->lu8_RxBusy == false)
{
/* Reenable PE and ERR (Frame error, noise error, overrun error) interrupts */
SET_BIT(huart->Instance->IE, UART_IE_OEI|UART_IE_BEI|UART_IE_FEI);
/* Enable the UART DMA Rx request */
SET_BIT(huart->Instance->DMACR, UART_DMACR_RXDMAE);
}
return HAL_OK;
}
#if 0
/*********************************************************************************
* Function : fputc
* Description :
* Input :
* Output :
* Author : Chris_Kyle Data : 2020
**********************************************************************************/
__weak int fputc(int ch, FILE *f)
{
if (Uart_Debug == NULL)
{
return 0;
}
Uart_Debug->DR = ch;
while ((Uart_Debug->FR & UART_FR_BUSY));
return ch;
}
#endif