/**
******************************************************************************
* @file stm32h7xx_ll_exti.c
* @author MCD Application Team
* @brief EXTI LL module driver.
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
#if defined(USE_FULL_LL_DRIVER)
/* Includes ------------------------------------------------------------------*/
#include "stm32h7xx_ll_exti.h"
#ifdef USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif
/** @addtogroup STM32H7xx_LL_Driver
* @{
*/
#if defined (EXTI)
/** @defgroup EXTI_LL EXTI
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup EXTI_LL_Private_Macros
* @{
*/
#define IS_LL_EXTI_LINE_0_31(__VALUE__) (((__VALUE__) & ~LL_EXTI_LINE_ALL_0_31) == 0x00000000U)
#define IS_LL_EXTI_LINE_32_63(__VALUE__) (((__VALUE__) & ~LL_EXTI_LINE_ALL_32_63) == 0x00000000U)
#define IS_LL_EXTI_LINE_64_95(__VALUE__) (((__VALUE__) & ~LL_EXTI_LINE_ALL_64_95) == 0x00000000U)
#define IS_LL_EXTI_MODE(__VALUE__) (((__VALUE__) == LL_EXTI_MODE_IT) \
|| ((__VALUE__) == LL_EXTI_MODE_EVENT) \
|| ((__VALUE__) == LL_EXTI_MODE_IT_EVENT))
#define IS_LL_EXTI_TRIGGER(__VALUE__) (((__VALUE__) == LL_EXTI_TRIGGER_NONE) \
|| ((__VALUE__) == LL_EXTI_TRIGGER_RISING) \
|| ((__VALUE__) == LL_EXTI_TRIGGER_FALLING) \
|| ((__VALUE__) == LL_EXTI_TRIGGER_RISING_FALLING))
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup EXTI_LL_Exported_Functions
* @{
*/
/** @addtogroup EXTI_LL_EF_Init
* @{
*/
/**
* @brief De-initialize the EXTI registers to their default reset values.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: EXTI registers are de-initialized
* - ERROR: not applicable
*/
ErrorStatus LL_EXTI_DeInit(void)
{
/* Rising Trigger selection register set to default reset values */
LL_EXTI_WriteReg(RTSR1, 0x00000000U);
LL_EXTI_WriteReg(RTSR2, 0x00000000U);
LL_EXTI_WriteReg(RTSR3, 0x00000000U);
/* Falling Trigger selection register set to default reset values */
LL_EXTI_WriteReg(FTSR1, 0x00000000U);
LL_EXTI_WriteReg(FTSR2, 0x00000000U);
LL_EXTI_WriteReg(FTSR3, 0x00000000U);
/* Software interrupt event register set to default reset values */
LL_EXTI_WriteReg(SWIER1, 0x00000000U);
LL_EXTI_WriteReg(SWIER2, 0x00000000U);
LL_EXTI_WriteReg(SWIER3, 0x00000000U);
/* D3 Pending register set to default reset values */
LL_EXTI_WriteReg(D3PMR1, 0x00000000U);
LL_EXTI_WriteReg(D3PMR2, 0x00000000U);
LL_EXTI_WriteReg(D3PMR3, 0x00000000U);
/* D3 Pending clear selection register low to default reset values */
LL_EXTI_WriteReg(D3PCR1L, 0x00000000U);
LL_EXTI_WriteReg(D3PCR2L, 0x00000000U);
LL_EXTI_WriteReg(D3PCR3L, 0x00000000U);
/* D3 Pending clear selection register high to default reset values */
LL_EXTI_WriteReg(D3PCR1H, 0x00000000U);
LL_EXTI_WriteReg(D3PCR2H, 0x00000000U);
LL_EXTI_WriteReg(D3PCR3H, 0x00000000U);
/* Interrupt mask register reset */
LL_EXTI_WriteReg(IMR1, 0x00000000U);
LL_EXTI_WriteReg(IMR2, 0x00000000U);
LL_EXTI_WriteReg(IMR3, 0x00000000U);
/* Event mask register reset */
LL_EXTI_WriteReg(EMR1, 0x00000000U);
LL_EXTI_WriteReg(EMR2, 0x00000000U);
LL_EXTI_WriteReg(EMR3, 0x00000000U);
/* Clear Pending requests */
LL_EXTI_WriteReg(PR1, EXTI_PR1_PR_Msk);
LL_EXTI_WriteReg(PR2, EXTI_PR2_PR_Msk);
LL_EXTI_WriteReg(PR3, EXTI_PR3_PR_Msk);
#if defined(DUAL_CORE)
/* Interrupt mask register set to default reset values for Core 2 (Coretx-M4)*/
LL_EXTI_WriteReg(C2IMR1, 0x00000000U);
LL_EXTI_WriteReg(C2IMR2, 0x00000000U);
LL_EXTI_WriteReg(C2IMR3, 0x00000000U);
/* Event mask register set to default reset values */
LL_EXTI_WriteReg(C2EMR1, 0x00000000U);
LL_EXTI_WriteReg(C2EMR2, 0x00000000U);
LL_EXTI_WriteReg(C2EMR3, 0x00000000U);
/* Clear Pending requests */
LL_EXTI_WriteReg(C2PR1, EXTI_PR1_PR_Msk);
LL_EXTI_WriteReg(C2PR2, EXTI_PR2_PR_Msk);
LL_EXTI_WriteReg(C2PR3, EXTI_PR3_PR_Msk);
#endif /* DUAL_CORE*/
return SUCCESS;
}
/**
* @brief Initialize the EXTI registers according to the specified parameters in EXTI_InitStruct.
* @param EXTI_InitStruct pointer to a @ref LL_EXTI_InitTypeDef structure.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: EXTI registers are initialized
* - ERROR: not applicable
*/
ErrorStatus LL_EXTI_Init(LL_EXTI_InitTypeDef *EXTI_InitStruct)
{
ErrorStatus status = SUCCESS;
/* Check the parameters */
assert_param(IS_LL_EXTI_LINE_0_31(EXTI_InitStruct->Line_0_31));
assert_param(IS_LL_EXTI_LINE_32_63(EXTI_InitStruct->Line_32_63));
assert_param(IS_LL_EXTI_LINE_64_95(EXTI_InitStruct->Line_64_95));
assert_param(IS_FUNCTIONAL_STATE(EXTI_InitStruct->LineCommand));
assert_param(IS_LL_EXTI_MODE(EXTI_InitStruct->Mode));
/* ENABLE LineCommand */
if (EXTI_InitStruct->LineCommand != DISABLE)
{
assert_param(IS_LL_EXTI_TRIGGER(EXTI_InitStruct->Trigger));
/* Configure EXTI Lines in range from 0 to 31 */
if (EXTI_InitStruct->Line_0_31 != LL_EXTI_LINE_NONE)
{
if((EXTI_InitStruct->Mode & LL_EXTI_MODE_IT) == LL_EXTI_MODE_IT)
{
/* Enable IT on provided Lines for Cortex-M7*/
LL_EXTI_EnableIT_0_31(EXTI_InitStruct->Line_0_31);
}
else
{
/* Disable IT on provided Lines for Cortex-M7*/
LL_EXTI_DisableIT_0_31(EXTI_InitStruct->Line_0_31);
}
if((EXTI_InitStruct->Mode & LL_EXTI_MODE_EVENT) == LL_EXTI_MODE_EVENT)
{
/* Enable event on provided Lines for Cortex-M7 */
LL_EXTI_EnableEvent_0_31(EXTI_InitStruct->Line_0_31);
}
else
{
/* Disable event on provided Lines for Cortex-M7 */
LL_EXTI_DisableEvent_0_31(EXTI_InitStruct->Line_0_31);
}
#if defined(DUAL_CORE)
if((EXTI_InitStruct->Mode & LL_EXTI_MODE_C2_IT) == LL_EXTI_MODE_C2_IT)
{
/* Enable IT on provided Lines for Cortex-M4 */
LL_C2_EXTI_EnableIT_0_31 (EXTI_InitStruct->Line_0_31);
}
else
{
/* Disable IT on provided Lines for Cortex-M4*/
LL_C2_EXTI_DisableIT_0_31(EXTI_InitStruct->Line_0_31);
}
if((EXTI_InitStruct->Mode & LL_EXTI_MODE_C2_EVENT) == LL_EXTI_MODE_C2_EVENT)
{
/* Enable event on provided Lines for Cortex-M4 */
LL_C2_EXTI_EnableEvent_0_31(EXTI_InitStruct->Line_0_31);
}
else
{
/* Disable event on provided Lines for Cortex-M4*/
LL_C2_EXTI_DisableEvent_0_31(EXTI_InitStruct->Line_0_31);
}
#endif /* DUAL_CORE */
if (EXTI_InitStruct->Trigger != LL_EXTI_TRIGGER_NONE)
{
switch (EXTI_InitStruct->Trigger)
{
case LL_EXTI_TRIGGER_RISING:
/* First Disable Falling Trigger on provided Lines */
LL_EXTI_DisableFallingTrig_0_31(EXTI_InitStruct->Line_0_31);
/* Then Enable Rising Trigger on provided Lines */
LL_EXTI_EnableRisingTrig_0_31(EXTI_InitStruct->Line_0_31);
break;
case LL_EXTI_TRIGGER_FALLING:
/* First Disable Rising Trigger on provided Lines */
LL_EXTI_DisableRisingTrig_0_31(EXTI_InitStruct->Line_0_31);
/* Then Enable Falling Trigger on provided Lines */
LL_EXTI_EnableFallingTrig_0_31(EXTI_InitStruct->Line_0_31);
break;
case LL_EXTI_TRIGGER_RISING_FALLING:
LL_EXTI_EnableRisingTrig_0_31(EXTI_InitStruct->Line_0_31);
LL_EXTI_EnableFallingTrig_0_31(EXTI_InitStruct->Line_0_31);
break;
default:
status = ERROR;
break;
}
}
}
/* Configure EXTI Lines in range from 32 to 63 */
if (EXTI_InitStruct->Line_32_63 != LL_EXTI_LINE_NONE)
{
if((EXTI_InitStruct->Mode & LL_EXTI_MODE_IT) == LL_EXTI_MODE_IT)
{
/* Enable IT on provided Lines for Cortex-M7*/
LL_EXTI_EnableIT_32_63(EXTI_InitStruct->Line_32_63);
}
else
{
/* Disable IT on provided Lines for Cortex-M7*/
LL_EXTI_DisableIT_32_63(EXTI_InitStruct->Line_32_63);
}
if((EXTI_InitStruct->Mode & LL_EXTI_MODE_EVENT) == LL_EXTI_MODE_EVENT)
{
/* Enable event on provided Lines for Cortex-M7 */
LL_EXTI_EnableEvent_32_63(EXTI_InitStruct->Line_32_63);
}
else
{
/* Disable event on provided Lines for Cortex-M7 */
LL_EXTI_DisableEvent_32_63(EXTI_InitStruct->Line_32_63);
}
#if defined(DUAL_CORE)
if((EXTI_InitStruct->Mode & LL_EXTI_MODE_C2_IT) == LL_EXTI_MODE_C2_IT)
{
/* Enable IT on provided Lines for Cortex-M4 */
LL_C2_EXTI_EnableIT_32_63 (EXTI_InitStruct->Line_32_63);
}
else
{
/* Disable IT on provided Lines for Cortex-M4 */
LL_C2_EXTI_DisableIT_32_63 (EXTI_InitStruct->Line_32_63);
}
if((EXTI_InitStruct->Mode & LL_EXTI_MODE_C2_EVENT) == LL_EXTI_MODE_C2_EVENT)
{
/* Enable event on provided Lines for Cortex-M4 */
LL_C2_EXTI_EnableEvent_32_63(EXTI_InitStruct->Line_32_63);
}
else
{
/* Disable event on provided Lines for Cortex-M4 */
LL_C2_EXTI_DisableEvent_32_63(EXTI_InitStruct->Line_32_63);
}
#endif /* DUAL_CORE */
if (EXTI_InitStruct->Trigger != LL_EXTI_TRIGGER_NONE)
{
switch (EXTI_InitStruct->Trigger)
{
case LL_EXTI_TRIGGER_RISING:
/* First Disable Falling Trigger on provided Lines */
LL_EXTI_DisableFallingTrig_32_63(EXTI_InitStruct->Line_32_63);
/* Then Enable IT on provided Lines */
LL_EXTI_EnableRisingTrig_32_63(EXTI_InitStruct->Line_32_63);
break;
case LL_EXTI_TRIGGER_FALLING:
/* First Disable Rising Trigger on provided Lines */
LL_EXTI_DisableRisingTrig_32_63(EXTI_InitStruct->Line_32_63);
/* Then Enable Falling Trigger on provided Lines */
LL_EXTI_EnableFallingTrig_32_63(EXTI_InitStruct->Line_32_63);
break;
case LL_EXTI_TRIGGER_RISING_FALLING:
LL_EXTI_EnableRisingTrig_32_63(EXTI_InitStruct->Line_32_63);
LL_EXTI_EnableFallingTrig_32_63(EXTI_InitStruct->Line_32_63);
break;
default:
status = ERROR;
break;
}
}
}
/* Configure EXTI Lines in range from 64 to 95 */
if (EXTI_InitStruct->Line_64_95 != LL_EXTI_LINE_NONE)
{
if((EXTI_InitStruct->Mode & LL_EXTI_MODE_IT) == LL_EXTI_MODE_IT)
{
/* Enable IT on provided Lines for Cortex-M7*/
LL_EXTI_EnableIT_64_95(EXTI_InitStruct->Line_64_95);
}
else
{
/* Disable IT on provided Lines for Cortex-M7*/
LL_EXTI_DisableIT_64_95(EXTI_InitStruct->Line_64_95);
}
if((EXTI_InitStruct->Mode & LL_EXTI_MODE_EVENT) == LL_EXTI_MODE_EVENT)
{
/* Enable event on provided Lines for Cortex-M7 */
LL_EXTI_EnableEvent_64_95(EXTI_InitStruct->Line_64_95);
}
else
{
/* Disable event on provided Lines for Cortex-M7 */
LL_EXTI_DisableEvent_64_95(EXTI_InitStruct->Line_64_95);
}
#if defined(DUAL_CORE)
if((EXTI_InitStruct->Mode & LL_EXTI_MODE_C2_IT) == LL_EXTI_MODE_C2_IT)
{
/* Enable IT on provided Lines for Cortex-M4 */
LL_C2_EXTI_EnableIT_64_95 (EXTI_InitStruct->Line_64_95);
}
else
{
/* Disable IT on provided Lines for Cortex-M4 */
LL_C2_EXTI_DisableIT_64_95 (EXTI_InitStruct->Line_64_95);
}
if((EXTI_InitStruct->Mode & LL_EXTI_MODE_C2_EVENT) == LL_EXTI_MODE_C2_EVENT)
{
/* Enable event on provided Lines for Cortex-M4 */
LL_C2_EXTI_EnableEvent_64_95(EXTI_InitStruct->Line_64_95);
}
else
{
/* Disable event on provided Lines for Cortex-M4 */
LL_C2_EXTI_DisableEvent_64_95(EXTI_InitStruct->Line_64_95);
}
#endif /* DUAL_CORE */
if (EXTI_InitStruct->Trigger != LL_EXTI_TRIGGER_NONE)
{
switch (EXTI_InitStruct->Trigger)
{
case LL_EXTI_TRIGGER_RISING:
/* First Disable Falling Trigger on provided Lines */
LL_EXTI_DisableFallingTrig_64_95(EXTI_InitStruct->Line_64_95);
/* Then Enable IT on provided Lines */
LL_EXTI_EnableRisingTrig_64_95(EXTI_InitStruct->Line_64_95);
break;
case LL_EXTI_TRIGGER_FALLING:
/* First Disable Rising Trigger on provided Lines */
LL_EXTI_DisableRisingTrig_64_95(EXTI_InitStruct->Line_64_95);
/* Then Enable Falling Trigger on provided Lines */
LL_EXTI_EnableFallingTrig_64_95(EXTI_InitStruct->Line_64_95);
break;
case LL_EXTI_TRIGGER_RISING_FALLING:
LL_EXTI_EnableRisingTrig_64_95(EXTI_InitStruct->Line_64_95);
LL_EXTI_EnableFallingTrig_64_95(EXTI_InitStruct->Line_64_95);
break;
default:
status = ERROR;
break;
}
}
}
}
else /* DISABLE LineCommand */
{
/* Disable IT on provided Lines for Cortex-M7*/
LL_EXTI_DisableIT_0_31(EXTI_InitStruct->Line_0_31);
LL_EXTI_DisableIT_32_63(EXTI_InitStruct->Line_32_63);
LL_EXTI_DisableIT_64_95(EXTI_InitStruct->Line_64_95);
/* Disable event on provided Lines for Cortex-M7 */
LL_EXTI_DisableEvent_0_31(EXTI_InitStruct->Line_0_31);
LL_EXTI_DisableEvent_32_63(EXTI_InitStruct->Line_32_63);
LL_EXTI_DisableEvent_64_95(EXTI_InitStruct->Line_64_95);
#if defined(DUAL_CORE)
/* Disable IT on provided Lines for Cortex-M4*/
LL_C2_EXTI_DisableIT_0_31(EXTI_InitStruct->Line_0_31);
LL_C2_EXTI_DisableIT_32_63(EXTI_InitStruct->Line_32_63);
LL_C2_EXTI_DisableIT_64_95(EXTI_InitStruct->Line_64_95);
/* Disable event on provided Lines for Cortex-M4 */
LL_C2_EXTI_DisableEvent_0_31(EXTI_InitStruct->Line_0_31);
LL_C2_EXTI_DisableEvent_32_63(EXTI_InitStruct->Line_32_63);
LL_C2_EXTI_DisableEvent_64_95(EXTI_InitStruct->Line_64_95);
#endif /* DUAL_CORE */
}
return status;
}
/**
* @brief Set each @ref LL_EXTI_InitTypeDef field to default value.
* @param EXTI_InitStruct Pointer to a @ref LL_EXTI_InitTypeDef structure.
* @retval None
*/
void LL_EXTI_StructInit(LL_EXTI_InitTypeDef *EXTI_InitStruct)
{
EXTI_InitStruct->Line_0_31 = LL_EXTI_LINE_NONE;
EXTI_InitStruct->Line_32_63 = LL_EXTI_LINE_NONE;
EXTI_InitStruct->Line_64_95 = LL_EXTI_LINE_NONE;
EXTI_InitStruct->LineCommand = DISABLE;
EXTI_InitStruct->Mode = LL_EXTI_MODE_IT;
EXTI_InitStruct->Trigger = LL_EXTI_TRIGGER_FALLING;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* defined (EXTI) */
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
