framework-arduinoteensy-cxx20/cores/teensy4/usb_keyboard.h

/* Teensyduino Core Library
 * http://www.pjrc.com/teensy/
 * Copyright (c) 2017 PJRC.COM, LLC.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * 1. The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * 2. If the Software is incorporated into a build system that allows
 * selection among a list of target devices, then similar target
 * devices manufactured by PJRC.COM must be included in the list of
 * target devices and selectable in the same manner.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#pragma once

#include "usb_desc.h"

#include "keylayouts.h"

#if defined(KEYBOARD_INTERFACE)

#include <inttypes.h>

// C language implementation
#ifdef __cplusplus
extern "C" {
#endif
void usb_keyboard_configure(void);
void usb_keyboard_write(uint8_t c);
void usb_keyboard_write_unicode(uint16_t cpoint);
void usb_keyboard_press_keycode(uint16_t n);
void usb_keyboard_release_keycode(uint16_t n);
void usb_keyboard_release_all(void);
int usb_keyboard_press(uint8_t key, uint8_t modifier);
int usb_keyboard_send(void);
#ifdef KEYMEDIA_INTERFACE
void usb_keymedia_release_all(void);
#endif
extern uint8_t keyboard_modifier_keys;
extern uint8_t keyboard_keys[6];
extern uint8_t keyboard_protocol;
extern uint8_t keyboard_idle_config;
extern uint8_t keyboard_idle_count;
extern volatile uint8_t keyboard_leds;
extern volatile uint8_t usb_configuration;
#ifdef __cplusplus
}
#endif



// C++ interface
#ifdef __cplusplus
#include "Stream.h"
class usb_keyboard_class : public Print
{
public:
	void begin(void) { }
	void end(void) { }
	virtual size_t write(uint8_t c) { usb_keyboard_write(c); return 1; }
        size_t write(unsigned long n) { return write((uint8_t)n); }
        size_t write(long n) { return write((uint8_t)n); }
        size_t write(unsigned int n) { return write((uint8_t)n); }
        size_t write(int n) { return write((uint8_t)n); }
	using Print::write;
	void write_unicode(uint16_t n) { usb_keyboard_write_unicode(n); }
	void set_modifier(uint16_t c) { keyboard_modifier_keys = (uint8_t)c; }
	void set_key1(uint8_t c) { keyboard_keys[0] = c; }
	void set_key2(uint8_t c) { keyboard_keys[1] = c; }
	void set_key3(uint8_t c) { keyboard_keys[2] = c; }
	void set_key4(uint8_t c) { keyboard_keys[3] = c; }
	void set_key5(uint8_t c) { keyboard_keys[4] = c; }
	void set_key6(uint8_t c) { keyboard_keys[5] = c; }
#ifdef KEYMEDIA_INTERFACE
	void set_media(uint16_t c) {
		if (c == 0) {
			usb_keymedia_release_all();
		} else if (c >= 0xE400 && c <= 0xE7FF) {
			press(c);
		}
	}
#endif
	void send_now(void) { usb_keyboard_send(); }
	void press(uint16_t n) { usb_keyboard_press_keycode(n); }
	void release(uint16_t n) { usb_keyboard_release_keycode(n); }
	void releaseAll(void) { usb_keyboard_release_all(); }
};

extern usb_keyboard_class Keyboard;

#endif // __cplusplus

#endif // KEYBOARD_INTERFACE