c481a5b7ac
Gregory Nutt is the copyright holder for those files and he has submitted the SGA as a result we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/****************************************************************************
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* boards/arm/stm32/photon/src/stm32_buttons.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <debug.h>
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#include <errno.h>
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#include <arch/board/board.h>
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#include "photon.h"
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#include "stm32_gpio.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: board_button_initialize
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****************************************************************************/
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uint32_t board_button_initialize(void)
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{
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/* Configure Photon button gpio as input */
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stm32_configgpio(GPIO_BUTTON1);
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return NUM_BUTTONS;
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}
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/****************************************************************************
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* Name: board_buttons
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****************************************************************************/
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uint32_t board_buttons(void)
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{
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/* Check the state of the only button */
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if (stm32_gpioread(GPIO_BUTTON1))
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{
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return BOARD_BUTTON1_BIT;
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}
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return 0;
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}
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/****************************************************************************
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* Name: board_button_irq
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****************************************************************************/
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#ifdef CONFIG_ARCH_IRQBUTTONS
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int board_button_irq(int id, xcpt_t irqhandler, FAR void *arg)
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{
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if (id != BOARD_BUTTON1)
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{
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/* Invalid button id */
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return -EINVAL;
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}
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/* Configure interrupt on falling edge only */
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return stm32_gpiosetevent(GPIO_BUTTON1, false, true, false,
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irqhandler, arg);
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}
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#endif /* CONFIG_ARCH_IRQBUTTONS */
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