75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/******************************************************************************
|
|
* The MIT License
|
|
*
|
|
* Copyright (c) 2010 Perry Hung.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation
|
|
* files (the "Software"), to deal in the Software without
|
|
* restriction, including without limitation the rights to use, copy,
|
|
* modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
* of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*****************************************************************************/
|
|
|
|
/**
|
|
* @file exti.h
|
|
* @brief External interrupt control prototypes and defines
|
|
*/
|
|
|
|
/* See notes/exti.txt for more info */
|
|
|
|
#include "libmaple.h"
|
|
#include "gpio.h"
|
|
|
|
#ifndef _EXTI_H_
|
|
#define _EXTI_H_
|
|
|
|
#ifdef __cplusplus
|
|
extern "C"{
|
|
#endif
|
|
|
|
/** EXTI register map type */
|
|
typedef struct exti_reg_map {
|
|
__io uint32 IMR; /**< Interrupt mask register */
|
|
__io uint32 EMR; /**< Event mask register */
|
|
__io uint32 RTSR; /**< Rising trigger selection register */
|
|
__io uint32 FTSR; /**< Falling trigger selection register */
|
|
__io uint32 SWIER; /**< Software interrupt event register */
|
|
__io uint32 PR; /**< Pending register */
|
|
} exti_reg_map;
|
|
|
|
/** EXTI register map base pointer */
|
|
#define EXTI_BASE ((struct exti_reg_map*)0x40013C00)
|
|
|
|
/** External interrupt trigger mode */
|
|
typedef enum exti_trigger_mode {
|
|
EXTI_RISING, /**< Trigger on the rising edge */
|
|
EXTI_FALLING, /**< Trigger on the falling edge */
|
|
EXTI_RISING_FALLING /**< Trigger on both the rising and falling edges */
|
|
} exti_trigger_mode;
|
|
|
|
void exti_attach_interrupt(afio_exti_num num,
|
|
afio_exti_port port,
|
|
voidFuncPtr handler,
|
|
exti_trigger_mode mode);
|
|
void exti_detach_interrupt(afio_exti_num num);
|
|
|
|
#ifdef __cplusplus
|
|
} // extern "C"
|
|
#endif
|
|
|
|
#endif
|