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/*****************************************************************************
# #
# KVMD - The main Pi-KVM daemon. #
# #
# Copyright (C) 2018 Maxim Devaev <[email protected]> #
# #
# This program 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 program 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 <https://www.gnu.org/licenses/>. #
# #
*****************************************************************************/
#pragma once
#include <Arduino.h>
#include <HID-Project.h>
#include "keymap.h"
// -----------------------------------------------------------------------------
#ifdef CHECK_ENDPOINT
static bool _checkEndpoint(uint8_t ep) {
// https://github.com/arduino/ArduinoCore-avr/blob/2f67c916f6ab6193c404eebe22efe901e0f9542d/cores/arduino/USBCore.cpp#L249
// https://sourceforge.net/p/arduinomidilib/svn/41/tree/branch/3.1/Teensy/teensy_core/usb_midi/usb_api.cpp#l103
uint8_t intr_state = SREG;
cli();
UENUM = ep & 7;
bool rw_allowed = UEINTX & (1 << RWAL);
SREG = intr_state;
return rw_allowed;
}
# define CHECK_HID_EP { if (!isOnline()) return; }
#else
# define CHECK_HID_EP
#endif
class UsbHidKeyboard {
public:
UsbHidKeyboard() {}
void begin() {
BootKeyboard.begin();
}
bool isOnline() {
# ifdef CHECK_ENDPOINT
return _checkEndpoint(BootKeyboard.getPluggedEndpoint());
# else
return true;
# endif
}
void reset() {
BootKeyboard.releaseAll();
}
void sendKey(uint8_t code, bool state) {
CHECK_HID_EP;
KeyboardKeycode usb_code = keymapUsb(code);
if (usb_code != KEY_ERROR_UNDEFINED) {
if (state) BootKeyboard.press(usb_code);
else BootKeyboard.release(usb_code);
}
}
uint8_t getLedsAs(uint8_t caps, uint8_t scroll, uint8_t num) {
uint8_t leds = BootKeyboard.getLeds();
uint8_t result = 0;
if (leds & LED_CAPS_LOCK) result |= caps;
if (leds & LED_SCROLL_LOCK) result |= scroll;
if (leds & LED_NUM_LOCK) result |= num;
return result;
}
};
class UsbHidMouse {
public:
UsbHidMouse() {}
void begin() {
SingleAbsoluteMouse.begin();
}
bool isOnline() {
# ifdef CHECK_ENDPOINT
return _checkEndpoint(SingleAbsoluteMouse.getPluggedEndpoint());
# else
return true;
# endif
}
void reset() {
SingleAbsoluteMouse.releaseAll();
}
void sendButtons(
bool left_select, bool left_state,
bool right_select, bool right_state,
bool middle_select, bool middle_state,
bool up_select, bool up_state,
bool down_select, bool down_state
) {
if (left_select) _sendButton(MOUSE_LEFT, left_state);
if (right_select) _sendButton(MOUSE_RIGHT, right_state);
if (middle_select) _sendButton(MOUSE_MIDDLE, middle_state);
if (up_select) _sendButton(MOUSE_PREV, up_state);
if (down_select) _sendButton(MOUSE_NEXT, down_state);
}
void sendMove(int x, int y) {
CHECK_HID_EP;
SingleAbsoluteMouse.moveTo(x, y);
}
void sendWheel(int delta_y) {
CHECK_HID_EP;
// delta_x is not supported by hid-project now
SingleAbsoluteMouse.move(0, 0, delta_y);
}
private:
void _sendButton(uint8_t button, bool state) {
CHECK_HID_EP;
if (state) SingleAbsoluteMouse.press(button);
else SingleAbsoluteMouse.release(button);
}
};
#undef CHECK_HID_EP
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