File content as of revision 0:01f31e923fe2:

/**
 * @file    gpio.h
 * @brief
 *
 * DAPLink Interface Firmware
 * Copyright (c) 2009-2019, ARM Limited, All Rights Reserved
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed 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.
 */

#ifndef GPIO_H
#define GPIO_H

#include <stdbool.h>
#include "IO_Config.h"

#ifdef __cplusplus
extern "C" {
#endif

// wiring on PCB is unknown so implementations may vary
typedef enum led_state {
    GPIO_LED_OFF = 0,
    GPIO_LED_ON
} gpio_led_state_t;

void gpio_init(void);
void gpio_set_board_power(bool powerEnabled);
void gpio_set_hid_led(gpio_led_state_t state);
void gpio_set_cdc_led(gpio_led_state_t state);
void gpio_set_msc_led(gpio_led_state_t state);
uint8_t gpio_get_reset_btn_no_fwrd(void);
uint8_t gpio_get_reset_btn_fwrd(void);
#ifdef PBON_BUTTON
uint8_t gpio_get_pbon_btn(void);
#endif

static inline uint8_t gpio_get_reset_btn(void)
{
    return gpio_get_reset_btn_no_fwrd() || gpio_get_reset_btn_fwrd();
}

#ifdef __cplusplus
}
#endif

#endif