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/*
******************************************************************************
* @file HAL_EXTI.c
* @version V1.0.0
* @date 2020
* @brief EXTI HAL module driver.
* This file provides firmware functions to manage the following
* functionalities of the General Purpose Input/Output (EXTI) peripheral:
* + Initialization functions
* + IO operation functions
******************************************************************************
*/
#include "ACM32Fxx_HAL.h"
/*********************************************************************************
* Function : HAL_EXTI_IRQHandler
* Description : Handle EXTI interrupt request.
* Input : huart: EXTI handle.
* Output :
* Author : Chris_Kyle Data : 2020年
**********************************************************************************/
void HAL_EXTI_IRQHandler(EXTI_HandleTypeDef *hexti)
{
if (EXTI->PDR & hexti->u32_Line)
{
EXTI->PDR = hexti->u32_Line;
}
}
/*********************************************************************************
* Function : HAL_EXTI_SetConfigLine
* Description :
* Input :
* Outpu :
* Author : Chris_Kyle Data : 2020年
**********************************************************************************/
HAL_StatusTypeDef HAL_EXTI_SetConfigLine(EXTI_HandleTypeDef *hexti)
{
uint32_t lu32_IndexLine;
#if (USE_FULL_ASSERT == 1)
if (!IS_EXTI_ALL_LINE(hexti->u32_Line)) return HAL_ERROR;
if (!IS_EXTI_MODE(hexti->u32_Mode)) return HAL_ERROR;
if (!IS_EXTI_TRIGGER(hexti->u32_Trigger)) return HAL_ERROR;
/* Line0 ~ 15 trigger from GPIO */
if (!(hexti->u32_Line >> 16))
{
if (!IS_EXTI_GPIOSEL(hexti->u32_GPIOSel)) return HAL_ERROR;
}
#endif
lu32_IndexLine = hexti->u32_Line;
/* Interrupt Mode */
if (hexti->u32_Mode == EXTI_MODE_INTERRUPT)
{
EXTI->IENR |= lu32_IndexLine;
EXTI->EENR &= ~lu32_IndexLine;
NVIC_ClearPendingIRQ(EXTI_IRQn);
NVIC_EnableIRQ(EXTI_IRQn);
}
/* Event Mode */
else if (hexti->u32_Mode == EXTI_MODE_EVENT)
{
EXTI->EENR |= lu32_IndexLine;
EXTI->IENR &= ~lu32_IndexLine;
}
if (hexti->u32_Trigger == EXTI_TRIGGER_RISING)
{
EXTI->RTENR |= lu32_IndexLine;
EXTI->FTENR &= ~lu32_IndexLine;
}
else if (hexti->u32_Trigger == EXTI_TRIGGER_FALLING)
{
EXTI->FTENR |= lu32_IndexLine;
EXTI->RTENR &= ~lu32_IndexLine;
}
else
{
EXTI->FTENR |= lu32_IndexLine;
EXTI->RTENR |= lu32_IndexLine;
}
/* Line0 ~ 15 trigger from GPIO */
if (!(hexti->u32_Line >> 16))
{
lu32_IndexLine = 0;
while(hexti->u32_Line >> lu32_IndexLine != 0x01)
{
lu32_IndexLine++;
}
/* Line0 ~ 7 */
if (lu32_IndexLine < 8)
{
EXTI->EXTICR1 = (EXTI->EXTICR1 & ~(0x0F << (lu32_IndexLine * 4))) | hexti->u32_GPIOSel << (lu32_IndexLine * 4);
}
/* Line8 ~ 15 */
else
{
lu32_IndexLine -= 8;
EXTI->EXTICR2 = (EXTI->EXTICR2 & ~(0x0F << (lu32_IndexLine * 4))) | hexti->u32_GPIOSel << (lu32_IndexLine * 4);
}
}
return HAL_OK;
}
/*********************************************************************************
* Function : HAL_EXTI_SoftTrigger
* Description : Software trigger EXTI
* Input :
* Outpu :
* Author : Chris_Kyle Data : 2020年
**********************************************************************************/
void HAL_EXTI_SoftTrigger(EXTI_HandleTypeDef *hexti)
{
#if (USE_FULL_ASSERT == 1)
if (!IS_EXTI_ALL_LINE(hexti->u32_Line)) return;
#endif
/* Set pending BIT */
EXTI->SWIER |= hexti->u32_Line;
}
/*********************************************************************************
* Function : HAL_EXTI_GetPending
* Description : Get interrupt pending bit of a dedicated line.
* Input :
* Outpu :
* Author : Chris_Kyle Data : 2020年
**********************************************************************************/
bool HAL_EXTI_GetPending(EXTI_HandleTypeDef *hexti)
{
#if (USE_FULL_ASSERT == 1)
if (!IS_EXTI_ALL_LINE(hexti->u32_Line)) return HAL_ERROR;
#endif
if (hexti->u32_Line & EXTI->PDR)
{
return true;
}
else
{
return false;
}
}
/*********************************************************************************
* Function : HAL_EXTI_ClearPending
* Description : Clear interrupt pending bit of a dedicated line.
* Input :
* Outpu :
* Author : Chris_Kyle Data : 2020年
**********************************************************************************/
void HAL_EXTI_ClearPending(EXTI_HandleTypeDef *hexti)
{
#if (USE_FULL_ASSERT == 1)
if (!IS_EXTI_ALL_LINE(hexti->u32_Line)) return;
#endif
/* Clear pending status */
EXTI->PDR |= hexti->u32_Line;
}
/*********************************************************************************
* Function : HAL_EXTI_ClearAllPending
* Description : Clear all interrupt pending bit.
* Input :
* Outpu :
* Author : xwl Data : 2021年
**********************************************************************************/
void HAL_EXTI_ClearAllPending(void)
{
/* Clear pending status */
EXTI->PDR |= EXTI_LINE_MASK;
}
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