--- /dev/null
+/**
+ ******************************************************************************
+ * @file stm32f4xx_exti.h
+ * @author MCD Application Team
+ * @version V1.0.0RC1
+ * @date 25-August-2011
+ * @brief This file contains all the functions prototypes for the EXTI firmware
+ * library.
+ ******************************************************************************
+ * @attention
+ *
+ * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+ * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+ * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+ * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+ * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+ * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+ *
+ * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
+ ******************************************************************************
+ */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F4xx_EXTI_H
+#define __STM32F4xx_EXTI_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx.h"
+
+/** @addtogroup STM32F4xx_StdPeriph_Driver
+ * @{
+ */
+
+/** @addtogroup EXTI
+ * @{
+ */
+
+/* Exported types ------------------------------------------------------------*/
+
+/**
+ * @brief EXTI mode enumeration
+ */
+
+typedef enum
+{
+ EXTI_Mode_Interrupt = 0x00,
+ EXTI_Mode_Event = 0x04
+}EXTIMode_TypeDef;
+
+#define IS_EXTI_MODE(MODE) (((MODE) == EXTI_Mode_Interrupt) || ((MODE) == EXTI_Mode_Event))
+
+/**
+ * @brief EXTI Trigger enumeration
+ */
+
+typedef enum
+{
+ EXTI_Trigger_Rising = 0x08,
+ EXTI_Trigger_Falling = 0x0C,
+ EXTI_Trigger_Rising_Falling = 0x10
+}EXTITrigger_TypeDef;
+
+#define IS_EXTI_TRIGGER(TRIGGER) (((TRIGGER) == EXTI_Trigger_Rising) || \
+ ((TRIGGER) == EXTI_Trigger_Falling) || \
+ ((TRIGGER) == EXTI_Trigger_Rising_Falling))
+/**
+ * @brief EXTI Init Structure definition
+ */
+
+typedef struct
+{
+ uint32_t EXTI_Line; /*!< Specifies the EXTI lines to be enabled or disabled.
+ This parameter can be any combination value of @ref EXTI_Lines */
+
+ EXTIMode_TypeDef EXTI_Mode; /*!< Specifies the mode for the EXTI lines.
+ This parameter can be a value of @ref EXTIMode_TypeDef */
+
+ EXTITrigger_TypeDef EXTI_Trigger; /*!< Specifies the trigger signal active edge for the EXTI lines.
+ This parameter can be a value of @ref EXTITrigger_TypeDef */
+
+ FunctionalState EXTI_LineCmd; /*!< Specifies the new state of the selected EXTI lines.
+ This parameter can be set either to ENABLE or DISABLE */
+}EXTI_InitTypeDef;
+
+/* Exported constants --------------------------------------------------------*/
+
+/** @defgroup EXTI_Exported_Constants
+ * @{
+ */
+
+/** @defgroup EXTI_Lines
+ * @{
+ */
+
+#define EXTI_Line0 ((uint32_t)0x00001) /*!< External interrupt line 0 */
+#define EXTI_Line1 ((uint32_t)0x00002) /*!< External interrupt line 1 */
+#define EXTI_Line2 ((uint32_t)0x00004) /*!< External interrupt line 2 */
+#define EXTI_Line3 ((uint32_t)0x00008) /*!< External interrupt line 3 */
+#define EXTI_Line4 ((uint32_t)0x00010) /*!< External interrupt line 4 */
+#define EXTI_Line5 ((uint32_t)0x00020) /*!< External interrupt line 5 */
+#define EXTI_Line6 ((uint32_t)0x00040) /*!< External interrupt line 6 */
+#define EXTI_Line7 ((uint32_t)0x00080) /*!< External interrupt line 7 */
+#define EXTI_Line8 ((uint32_t)0x00100) /*!< External interrupt line 8 */
+#define EXTI_Line9 ((uint32_t)0x00200) /*!< External interrupt line 9 */
+#define EXTI_Line10 ((uint32_t)0x00400) /*!< External interrupt line 10 */
+#define EXTI_Line11 ((uint32_t)0x00800) /*!< External interrupt line 11 */
+#define EXTI_Line12 ((uint32_t)0x01000) /*!< External interrupt line 12 */
+#define EXTI_Line13 ((uint32_t)0x02000) /*!< External interrupt line 13 */
+#define EXTI_Line14 ((uint32_t)0x04000) /*!< External interrupt line 14 */
+#define EXTI_Line15 ((uint32_t)0x08000) /*!< External interrupt line 15 */
+#define EXTI_Line16 ((uint32_t)0x10000) /*!< External interrupt line 16 Connected to the PVD Output */
+#define EXTI_Line17 ((uint32_t)0x20000) /*!< External interrupt line 17 Connected to the RTC Alarm event */
+#define EXTI_Line18 ((uint32_t)0x40000) /*!< External interrupt line 18 Connected to the USB OTG FS Wakeup from suspend event */
+#define EXTI_Line19 ((uint32_t)0x80000) /*!< External interrupt line 19 Connected to the Ethernet Wakeup event */
+#define EXTI_Line20 ((uint32_t)0x00100000) /*!< External interrupt line 20 Connected to the USB OTG HS (configured in FS) Wakeup event */
+#define EXTI_Line21 ((uint32_t)0x00200000) /*!< External interrupt line 21 Connected to the RTC Tamper and Time Stamp events */
+#define EXTI_Line22 ((uint32_t)0x00400000) /*!< External interrupt line 22 Connected to the RTC Wakeup event */
+
+#define IS_EXTI_LINE(LINE) ((((LINE) & (uint32_t)0xFF800000) == 0x00) && ((LINE) != (uint16_t)0x00))
+
+#define IS_GET_EXTI_LINE(LINE) (((LINE) == EXTI_Line0) || ((LINE) == EXTI_Line1) || \
+ ((LINE) == EXTI_Line2) || ((LINE) == EXTI_Line3) || \
+ ((LINE) == EXTI_Line4) || ((LINE) == EXTI_Line5) || \
+ ((LINE) == EXTI_Line6) || ((LINE) == EXTI_Line7) || \
+ ((LINE) == EXTI_Line8) || ((LINE) == EXTI_Line9) || \
+ ((LINE) == EXTI_Line10) || ((LINE) == EXTI_Line11) || \
+ ((LINE) == EXTI_Line12) || ((LINE) == EXTI_Line13) || \
+ ((LINE) == EXTI_Line14) || ((LINE) == EXTI_Line15) || \
+ ((LINE) == EXTI_Line16) || ((LINE) == EXTI_Line17) || \
+ ((LINE) == EXTI_Line18) || ((LINE) == EXTI_Line19) || \
+ ((LINE) == EXTI_Line20) || ((LINE) == EXTI_Line21) ||\
+ ((LINE) == EXTI_Line22))
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/* Exported macro ------------------------------------------------------------*/
+/* Exported functions --------------------------------------------------------*/
+
+/* Function used to set the EXTI configuration to the default reset state *****/
+void EXTI_DeInit(void);
+
+/* Initialization and Configuration functions *********************************/
+void EXTI_Init(EXTI_InitTypeDef* EXTI_InitStruct);
+void EXTI_StructInit(EXTI_InitTypeDef* EXTI_InitStruct);
+void EXTI_GenerateSWInterrupt(uint32_t EXTI_Line);
+
+/* Interrupts and flags management functions **********************************/
+FlagStatus EXTI_GetFlagStatus(uint32_t EXTI_Line);
+void EXTI_ClearFlag(uint32_t EXTI_Line);
+ITStatus EXTI_GetITStatus(uint32_t EXTI_Line);
+void EXTI_ClearITPendingBit(uint32_t EXTI_Line);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F4xx_EXTI_H */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
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