/*
 * This file is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This file is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include "AP_HAL_ESP32.h"

class ESP32::GPIO : public AP_HAL::GPIO {
public:
    GPIO();
    void    init() override;
    void    pinMode(uint8_t pin, uint8_t output) override;
    uint8_t read(uint8_t pin) override;
    void    write(uint8_t pin, uint8_t value) override;
    void    toggle(uint8_t pin) override;

    /* Alternative interface: */
    AP_HAL::DigitalSource* channel(uint16_t n) override;

    /* return true if USB cable is connected */
    bool    usb_connected(void) override;
};

class ESP32::DigitalSource : public AP_HAL::DigitalSource {
public:
    DigitalSource(uint8_t pin);
    void    mode(uint8_t output) override;
    uint8_t read() override;
    void    write(uint8_t value) override;
    void    toggle() override;
private:
    uint8_t _pin;
};