text: /******************** (C) COPYRIGHT 2007 STMicroelectronics ********************
  * File Name          : stm32f10x_exti.h
  * Author             : MCD Application Team
  * Date First Issued  : 09/29/2006
  * Description        : This file contains all the functions prototypes for the
  *                      EXTI firmware library.
  ********************************************************************************
  * History:
  * 05/21/2007: V0.3
  * 04/02/2007: V0.2
  * 02/05/2007: V0.1
  * 09/29/2006: V0.01
  ********************************************************************************
  * THE PRESENT SOFTWARE 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 SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
  * INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  *******************************************************************************/
  
  /* Define to prevent recursive inclusion -------------------------------------*/
  #ifndef __STM32F10x_EXTI_H
  #define __STM32F10x_EXTI_H
  
  /* Includes ------------------------------------------------------------------*/
  #include "stm32f10x_map.h"
  
  /* Exported types ------------------------------------------------------------*/
  /* 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))
                              
  /* 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))
  
  /* EXTI Init Structure definition --------------------------------------------*/
  typedef struct
  {
    u32 EXTI_Line;
    EXTIMode_TypeDef EXTI_Mode;
    EXTITrigger_TypeDef EXTI_Trigger;
    FunctionalState EXTI_LineCmd;
  }EXTI_InitTypeDef;
  
  /* Exported constants --------------------------------------------------------*/
  /* EXTI Lines ----------------------------------------------------------------*/
  #define EXTI_Line0       ((u32)0x00001)  /* External interrupt line 0 */
  #define EXTI_Line1       ((u32)0x00002)  /* External interrupt line 1 */
  #define EXTI_Line2       ((u32)0x00004)  /* External interrupt line 2 */
  #define EXTI_Line3       ((u32)0x00008)  /* External interrupt line 3 */
  #define EXTI_Line4       ((u32)0x00010)  /* External interrupt line 4 */
  #define EXTI_Line5       ((u32)0x00020)  /* External interrupt line 5 */
  #define EXTI_Line6       ((u32)0x00040)  /* External interrupt line 6 */
  #define EXTI_Line7       ((u32)0x00080)  /* External interrupt line 7 */
  #define EXTI_Line8       ((u32)0x00100)  /* External interrupt line 8 */
  #define EXTI_Line9       ((u32)0x00200)  /* External interrupt line 9 */
  #define EXTI_Line10      ((u32)0x00400)  /* External interrupt line 10 */
  #define EXTI_Line11      ((u32)0x00800)  /* External interrupt line 11 */
  #define EXTI_Line12      ((u32)0x01000)  /* External interrupt line 12 */
  #define EXTI_Line13      ((u32)0x02000)  /* External interrupt line 13 */
  #define EXTI_Line14      ((u32)0x04000)  /* External interrupt line 14 */
  #define EXTI_Line15      ((u32)0x08000)  /* External interrupt line 15 */
  #define EXTI_Line16      ((u32)0x10000)  /* External interrupt line 16
                                              Connected to the PVD Output */
  #define EXTI_Line17      ((u32)0x20000)  /* External interrupt line 17 
                                              Connected to the RTC Alarm event */
  #define EXTI_Line18      ((u32)0x40000)  /* External interrupt line 18 
                                              Connected to the USB Wakeup from 
                                              suspend event */
  
  #define IS_EXTI_LINE(LINE) (((LINE & (u32)0xFFF80000) == 0x00) && (LINE != (u16)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))
                                   
  /* Exported macro ------------------------------------------------------------*/
  /* Exported functions ------------------------------------------------------- */
  void EXTI_DeInit(void);
  void EXTI_Init(EXTI_InitTypeDef* EXTI_InitStruct);
  void EXTI_StructInit(EXTI_InitTypeDef* EXTI_InitStruct);
  void EXTI_GenerateSWInterrupt(u32 EXTI_Line);
  FlagStatus EXTI_GetFlagStatus(u32 EXTI_Line);
  void EXTI_ClearFlag(u32 EXTI_Line);
  ITStatus EXTI_GetITStatus(u32 EXTI_Line);
  void EXTI_ClearITPendingBit(u32 EXTI_Line);
  
  #endif /* __STM32F10x_EXTI_H */
  
  /******************* (C) COPYRIGHT 2007 STMicroelectronics *****END OF FILE****/
  