| /** |
| ****************************************************************************** |
| * @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 */ |
| |
