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/************************************************************************************
* arch/arm/src/stm32/stm32_exti.h
*
* Copyright (C) 2009, 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
#ifndef __ARCH_ARM_SRC_STM32_STM32_EXTI_H
#define __ARCH_ARM_SRC_STM32_STM32_EXTI_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <nuttx/irq.h>
#include "chip.h"
#include "chip/stm32_exti.h"
/************************************************************************************
* Public Data
************************************************************************************/
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C" {
#else
#define EXTERN extern
#endif
/************************************************************************************
* Public Function Prototypes
************************************************************************************/
/************************************************************************************
* Name: stm32_gpiosetevent
*
* Description:
* Sets/clears GPIO based event and interrupt triggers.
*
* Parameters:
* - pinset: gpio pin configuration
* - rising/falling edge: enables
* - event: generate event when set
* - func: when non-NULL, generate interrupt
*
* Returns:
* The previous value of the interrupt handler function pointer. This value may,
* for example, be used to restore the previous handler when multiple handlers are
* used.
*
************************************************************************************/
EXTERN xcpt_t stm32_gpiosetevent(uint32_t pinset, bool risingedge, bool fallingedge,
bool event, xcpt_t func);
/****************************************************************************
* Name: stm32_exti_alarm
*
* Description:
* Sets/clears EXTI alarm interrupt.
*
* Parameters:
* - rising/falling edge: enables interrupt on rising/falling edget
* - event: generate event when set
* - func: when non-NULL, generate interrupt
*
* Returns:
* The previous value of the interrupt handler function pointer. This
* value may, for example, be used to restore the previous handler when
* multiple handlers are used.
*
****************************************************************************/
#ifdef CONFIG_RTC_ALARM
EXTERN xcpt_t stm32_exti_alarm(bool risingedge, bool fallingedge, bool event,
xcpt_t func);
#endif
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_ARM_SRC_STM32_STM32_EXTI_H */
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