/** ****************************************************************************** * @file stm32h7xx_ll_exti.c * @author MCD Application Team * @brief EXTI LL module driver. ****************************************************************************** * @attention * *

© Copyright (c) 2017 STMicroelectronics. * All rights reserved.

* * This software component is licensed by ST under BSD 3-Clause license, * the "License"; You may not use this file except in compliance with the * License. You may obtain a copy of the License at: * opensource.org/licenses/BSD-3-Clause * ****************************************************************************** */ #if defined(USE_FULL_LL_DRIVER) || defined(__rtems__) /* 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 set to default reset values */ LL_EXTI_WriteReg(IMR1, 0x00000000U); LL_EXTI_WriteReg(IMR2, 0x00000000U); LL_EXTI_WriteReg(IMR3, 0x00000000U); /* Event mask register set to default reset values */ 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 */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/