1b47aa1cb2
so the lower half driver don't need include the specific board.h Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com> Change-Id: I2ff5c30049a5c5e8ee90baea56e9f4cb1a8a4f87
102 lines
3.5 KiB
C
102 lines
3.5 KiB
C
/****************************************************************************
|
|
* boards/arm/stm32/photon/src/stm32_buttons.c
|
|
*
|
|
* Copyright (C) 2017 Gregory Nutt. All rights reserved.
|
|
* Author: Simon Piriou <spiriou31@gmail.com>
|
|
*
|
|
* 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.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <debug.h>
|
|
#include <errno.h>
|
|
|
|
#include <arch/board/board.h>
|
|
#include "photon.h"
|
|
|
|
#include "stm32_gpio.h"
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: board_button_initialize
|
|
****************************************************************************/
|
|
|
|
uint32_t board_button_initialize(void)
|
|
{
|
|
/* Configure Photon button gpio as input */
|
|
|
|
stm32_configgpio(GPIO_BUTTON1);
|
|
return NUM_BUTTONS;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: board_buttons
|
|
****************************************************************************/
|
|
|
|
uint32_t board_buttons(void)
|
|
{
|
|
/* Check the state of the only button */
|
|
|
|
if (stm32_gpioread(GPIO_BUTTON1))
|
|
{
|
|
return BOARD_BUTTON1_BIT;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: board_button_irq
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_ARCH_IRQBUTTONS
|
|
int board_button_irq(int id, xcpt_t irqhandler, FAR void *arg)
|
|
{
|
|
if (id != BOARD_BUTTON1)
|
|
{
|
|
/* Invalid button id */
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Configure interrupt on falling edge only */
|
|
|
|
return stm32_gpiosetevent(GPIO_BUTTON1, false, true, false,
|
|
irqhandler, arg);
|
|
}
|
|
#endif /* CONFIG_ARCH_IRQBUTTONS */
|