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/*****************************************************************************
# #
# KVMD - The main PiKVM daemon. #
# #
# Copyright (C) 2018-2022 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 "../tools.h"
#ifdef AUM
# include "../aum.h"
#endif
#include "keymap.h"
// -----------------------------------------------------------------------------
#ifdef HID_USB_CHECK_ENDPOINT
// 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
# ifdef AUM
# define CHECK_AUM_USB { if (!aumIsUsbConnected()) { return offline; } }
# else
# define CHECK_AUM_USB
# endif
# define CLS_GET_OFFLINE_AS(_hid) \
uint8_t getOfflineAs(uint8_t offline) { \
CHECK_AUM_USB; \
uint8_t ep = _hid.getPluggedEndpoint(); \
uint8_t intr_state = SREG; \
cli(); \
UENUM = ep & 7; \
bool rw_allowed = UEINTX & (1 << RWAL); \
SREG = intr_state; \
if (rw_allowed) { \
return 0; \
} \
return offline; \
}
# define CHECK_HID_EP { if (getOfflineAs(1)) return; }
#else
# define CLS_GET_OFFLINE_AS(_hid) \
uint8_t getOfflineAs(uint8_t offline) { \
return 0; \
}
# define CHECK_HID_EP
#endif
class UsbKeyboard {
public:
UsbKeyboard() {}
void begin() {
_kbd.begin();
}
void periodic() {
# ifdef HID_USB_CHECK_ENDPOINT
static unsigned long prev_ts = 0;
if (is_micros_timed_out(prev_ts, 50000)) {
static bool prev_online = true;
bool online = !getOfflineAs(1);
if (!_sent || (online && !prev_online)) {
_sendCurrent();
}
prev_online = online;
prev_ts = micros();
}
# endif
}
void clear() {
_kbd.releaseAll();
}
void sendKey(uint8_t code, bool state) {
KeyboardKeycode usb_code = keymapUsb(code);
if (usb_code != KEY_ERROR_UNDEFINED) {
if (state ? _kbd.add(usb_code) : _kbd.remove(usb_code)) {
_sendCurrent();
}
}
}
CLS_GET_OFFLINE_AS(_kbd)
uint8_t getLedsAs(uint8_t caps, uint8_t scroll, uint8_t num) {
uint8_t leds = _kbd.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;
}
private:
BootKeyboard_ _kbd;
bool _sent = true;
void _sendCurrent() {
# ifdef HID_USB_CHECK_ENDPOINT
if (getOfflineAs(1)) {
_sent = false;
} else {
# endif
_sent = (_kbd.send() >= 0);
# ifdef HID_USB_CHECK_ENDPOINT
}
# endif
}
};
#define CLS_SEND_BUTTONS \
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); \
}
class UsbMouseAbsolute {
public:
UsbMouseAbsolute() {}
void begin(bool win98_fix) {
_mouse.begin();
_mouse.setWin98FixEnabled(win98_fix);
}
bool isWin98FixEnabled() {
return _mouse.isWin98FixEnabled();
}
void clear() {
_mouse.releaseAll();
}
CLS_SEND_BUTTONS
void sendMove(int x, int y) {
CHECK_HID_EP;
_mouse.moveTo(x, y);
}
void sendWheel(int delta_y) {
// delta_x is not supported by hid-project now
CHECK_HID_EP;
_mouse.move(0, 0, delta_y);
}
CLS_GET_OFFLINE_AS(_mouse)
private:
SingleAbsoluteMouse_ _mouse;
void _sendButton(uint8_t button, bool state) {
CHECK_HID_EP;
if (state) _mouse.press(button);
else _mouse.release(button);
}
};
class UsbMouseRelative {
public:
UsbMouseRelative() {}
void begin() {
_mouse.begin();
}
void clear() {
_mouse.releaseAll();
}
CLS_SEND_BUTTONS
void sendRelative(int x, int y) {
CHECK_HID_EP;
_mouse.move(x, y, 0);
}
void sendWheel(int delta_y) {
// delta_x is not supported by hid-project now
CHECK_HID_EP;
_mouse.move(0, 0, delta_y);
}
CLS_GET_OFFLINE_AS(_mouse)
private:
BootMouse_ _mouse;
void _sendButton(uint8_t button, bool state) {
CHECK_HID_EP;
if (state) _mouse.press(button);
else _mouse.release(button);
}
};
#undef CLS_SEND_BUTTONS
#undef CLS_GET_OFFLINE_AS
#undef CHECK_HID_EP
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