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/****************************************************************************
* configs/vsn/src/buttons.c
*
* Copyright (C) 2011 Uros Platise. All rights reserved.
*
* Authors: Uros Platise <uros.platise@isotel.eu>
*
* 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.
*
****************************************************************************/
/** \file
* \author Uros Platise
* \brief VSN Button
*/
#ifdef CONFIG_ARCH_BUTTONS
#include <nuttx/config.h>
#include <stdint.h>
#include <arch/board/board.h>
#include "vsn.h"
/****************************************************************************
* Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/** Called from an interrupt
*
* \todo Measure the time button is being pressed, and then:
* - if short signal all processes (tasks and threads) with 'button user request': SIGUSR1
* - if long (>0.5 s) signal all with 'power-off request': SIGTERM
**/
void buttons_callback(void)
{
}
/****************************************************************************
* Public Functions
****************************************************************************/
void up_buttoninit(void)
{
stm32_configgpio(GPIO_PUSHBUTTON);
}
uint8_t up_buttons(void)
{
return stm32_gpioread(GPIO_PUSHBUTTON);
}
#endif /* CONFIG_ARCH_BUTTONS */
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