1863dca88a
David Sidrane has submitted the ICL and we can migrate the licenses to Apache. Gregory Nutt has submitted the SGA and we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
107 lines
3.7 KiB
C
107 lines
3.7 KiB
C
/****************************************************************************
|
|
* boards/arm/stm32f7/nucleo-144/src/stm32_buttons.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <stddef.h>
|
|
#include <errno.h>
|
|
|
|
#include <nuttx/irq.h>
|
|
#include <nuttx/board.h>
|
|
|
|
#include <arch/board/board.h>
|
|
|
|
#include "stm32_gpio.h"
|
|
#include "nucleo-144.h"
|
|
|
|
#ifdef CONFIG_ARCH_BUTTONS
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: board_button_initialize
|
|
*
|
|
* Description:
|
|
* board_button_initialize() must be called to initialize button resources.
|
|
* After that, board_buttons() may be called to collect the current state
|
|
* of all buttons or board_button_irq() may be called to register button
|
|
* interrupt handlers.
|
|
*
|
|
****************************************************************************/
|
|
|
|
uint32_t board_button_initialize(void)
|
|
{
|
|
stm32_configgpio(GPIO_BTN_USER);
|
|
return NUM_BUTTONS;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: board_buttons
|
|
****************************************************************************/
|
|
|
|
uint32_t board_buttons(void)
|
|
{
|
|
return stm32_gpioread(GPIO_BTN_USER) ? 1 : 0;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Button support.
|
|
*
|
|
* Description:
|
|
* board_button_initialize() must be called to initialize button resources.
|
|
* After that, board_buttons() may be called to collect the current state
|
|
* of all buttons or board_button_irq() may be called to register button
|
|
* interrupt handlers.
|
|
*
|
|
* After board_button_initialize() has been called, board_buttons() may be
|
|
* called to collect the state of all buttons. board_buttons() returns an
|
|
* 32-bit bit set with each bit associated with a button. See the
|
|
* BUTTON_*_BIT definitions in board.h for the meaning of each bit.
|
|
*
|
|
* board_button_irq() may be called to register an interrupt handler that
|
|
* will be called when a button is depressed or released. The ID value is a
|
|
* button enumeration value that uniquely identifies a button resource. See
|
|
* the BUTTON_* definitions in board.h for the meaning of enumeration
|
|
* value.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_ARCH_IRQBUTTONS
|
|
int board_button_irq(int id, xcpt_t irqhandler, FAR void *arg)
|
|
{
|
|
int ret = -EINVAL;
|
|
|
|
if (id == BUTTON_USER)
|
|
{
|
|
ret = stm32_gpiosetevent(GPIO_BTN_USER, true, true, true,
|
|
irqhandler, arg);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
#endif /* CONFIG_ARCH_BUTTONS */
|