add factory for avr (#98)

13 files changed, 1002 insertions, 0 deletions

diff --git a/hid/lib/drivers-avr/factory.cpp b/hid/lib/drivers-avr/factory.cpp
new file mode 100644
index 00000000..d58e6c96
--- /dev/null
+++ b/hid/lib/drivers-avr/factory.cpp
@@ -0,0 +1,61 @@
+/*****************************************************************************
+#                                                                            #
+#    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/>.  #
+#                                                                            #
+*****************************************************************************/
+
+#include "usb/hid.h"
+#include "ps2/hid.h"
+#include "factory.h"
+
+namespace DRIVERS
+{
+
+	Keyboard *Factory::makeKeyboard(type _type) {
+		switch (_type) {
+
+#		ifdef HID_WITH_USB
+			case USB_KEYBOARD:
+				return new UsbKeyboard();
+#		endif
+
+#		ifdef HID_WITH_PS2
+			case PS2_KEYBOARD:
+				return new Ps2Keyboard();
+#		endif
+			default:
+				return new Keyboard(DUMMY);
+		}
+	}
+
+	Mouse *Factory::makeMouse(type _type) {
+		switch(_type)
+		{
+#		ifdef HID_WITH_USB
+			case USB_MOUSE_ABSOLUTE:
+			case USB_MOUSE_ABSOLUTE_WIN98:
+				return new UsbMouseAbsolute(_type);
+			case USB_MOUSE_RELATIVE:
+				return new UsbMouseRelative();
+#		endif
+			default:
+				return new Mouse(DRIVERS::DUMMY);
+		}
+	}
+
+}
diff --git a/hid/lib/drivers-avr/ps2/hid.h b/hid/lib/drivers-avr/ps2/hid.h
new file mode 100644
index 00000000..809f9d2d
--- /dev/null
+++ b/hid/lib/drivers-avr/ps2/hid.h
@@ -0,0 +1,95 @@
+/*****************************************************************************
+#                                                                            #
+#    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 <ps2dev.h>
+
+#include "keyboard.h"
+#include "keymap.h"
+
+// #define HID_PS2_KBD_CLOCK_PIN	7
+// #define HID_PS2_KBD_DATA_PIN		5
+
+
+class Ps2Keyboard : public DRIVERS::Keyboard {
+	// https://wiki.osdev.org/PS/2_Keyboard
+
+	public:
+		Ps2Keyboard() : DRIVERS::Keyboard(DRIVERS::PS2_KEYBOARD), _dev(HID_PS2_KBD_CLOCK_PIN, HID_PS2_KBD_DATA_PIN) {}
+
+		void begin() override {
+			_dev.keyboard_init();
+		}
+
+		void periodic() override {
+			_dev.keyboard_handle(&_leds);
+		}
+
+		void sendKey(uint8_t code, bool state) override {
+			Ps2KeyType ps2_type;
+			uint8_t ps2_code;
+
+			keymapPs2(code, &ps2_type, &ps2_code);
+			if (ps2_type != PS2_KEY_TYPE_UNKNOWN) {
+				// Не отправлялась часть нажатий. Когда clock на нуле, комп не принимает ничего от клавы.
+				// Этот костыль понижает процент пропущенных нажатий.
+				while (digitalRead(HID_PS2_KBD_CLOCK_PIN) == 0) {};
+				if (state) {
+					switch (ps2_type) {
+						case PS2_KEY_TYPE_REG: _dev.keyboard_press(ps2_code); break;
+						case PS2_KEY_TYPE_SPEC: _dev.keyboard_press_special(ps2_code); break;
+						case PS2_KEY_TYPE_PRINT: _dev.keyboard_press_printscreen(); break;
+						case PS2_KEY_TYPE_PAUSE: _dev.keyboard_pausebreak(); break;
+						case PS2_KEY_TYPE_UNKNOWN: break;
+					}
+				} else {
+					switch (ps2_type) {
+						case PS2_KEY_TYPE_REG: _dev.keyboard_release(ps2_code); break;
+						case PS2_KEY_TYPE_SPEC: _dev.keyboard_release_special(ps2_code); break;
+						case PS2_KEY_TYPE_PRINT: _dev.keyboard_release_printscreen(); break;
+						case PS2_KEY_TYPE_PAUSE: break;
+						case PS2_KEY_TYPE_UNKNOWN: break;
+					}
+				}
+			}
+		}
+
+		bool isOffline() override {
+			return false;
+		}
+
+		KeyboardLedsState getLeds() override {
+			periodic();
+			KeyboardLedsState result = {
+				.caps = _leds & 0b00000100,
+				.scroll = _leds & 0b00000001,
+				.num = _leds & 0b00000010,
+			};
+			return result;
+		}
+
+	private:
+		PS2dev _dev;
+		uint8_t _leds = 0;
+};
diff --git a/hid/lib/drivers-avr/ps2/keymap.h b/hid/lib/drivers-avr/ps2/keymap.h
new file mode 100644
index 00000000..a2b6f8fd
--- /dev/null
+++ b/hid/lib/drivers-avr/ps2/keymap.h
@@ -0,0 +1,148 @@
+/*****************************************************************************
+#                                                                            #
+#    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
+
+
+enum Ps2KeyType : uint8_t {
+	PS2_KEY_TYPE_UNKNOWN = 0,
+	PS2_KEY_TYPE_REG = 1,
+	PS2_KEY_TYPE_SPEC = 2,
+	PS2_KEY_TYPE_PRINT = 3,
+	PS2_KEY_TYPE_PAUSE = 4,
+};
+
+
+void keymapPs2(uint8_t code, Ps2KeyType *ps2_type, uint8_t *ps2_code) {
+	*ps2_type = PS2_KEY_TYPE_UNKNOWN;
+	*ps2_code = 0;
+
+	switch (code) {
+		case 1: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 28; return; // KEY_A
+		case 2: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 50; return; // KEY_B
+		case 3: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 33; return; // KEY_C
+		case 4: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 35; return; // KEY_D
+		case 5: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 36; return; // KEY_E
+		case 6: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 43; return; // KEY_F
+		case 7: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 52; return; // KEY_G
+		case 8: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 51; return; // KEY_H
+		case 9: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 67; return; // KEY_I
+		case 10: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 59; return; // KEY_J
+		case 11: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 66; return; // KEY_K
+		case 12: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 75; return; // KEY_L
+		case 13: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 58; return; // KEY_M
+		case 14: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 49; return; // KEY_N
+		case 15: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 68; return; // KEY_O
+		case 16: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 77; return; // KEY_P
+		case 17: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 21; return; // KEY_Q
+		case 18: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 45; return; // KEY_R
+		case 19: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 27; return; // KEY_S
+		case 20: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 44; return; // KEY_T
+		case 21: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 60; return; // KEY_U
+		case 22: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 42; return; // KEY_V
+		case 23: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 29; return; // KEY_W
+		case 24: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 34; return; // KEY_X
+		case 25: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 53; return; // KEY_Y
+		case 26: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 26; return; // KEY_Z
+		case 27: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 22; return; // KEY_1
+		case 28: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 30; return; // KEY_2
+		case 29: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 38; return; // KEY_3
+		case 30: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 37; return; // KEY_4
+		case 31: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 46; return; // KEY_5
+		case 32: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 54; return; // KEY_6
+		case 33: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 61; return; // KEY_7
+		case 34: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 62; return; // KEY_8
+		case 35: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 70; return; // KEY_9
+		case 36: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 69; return; // KEY_0
+		case 37: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 90; return; // KEY_ENTER
+		case 38: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 118; return; // KEY_ESC
+		case 39: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 102; return; // KEY_BACKSPACE
+		case 40: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 13; return; // KEY_TAB
+		case 41: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 41; return; // KEY_SPACE
+		case 42: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 78; return; // KEY_MINUS
+		case 43: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 85; return; // KEY_EQUAL
+		case 44: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 84; return; // KEY_LEFT_BRACE
+		case 45: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 91; return; // KEY_RIGHT_BRACE
+		case 46: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 93; return; // KEY_BACKSLASH
+		case 47: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 76; return; // KEY_SEMICOLON
+		case 48: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 82; return; // KEY_QUOTE
+		case 49: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 14; return; // KEY_TILDE
+		case 50: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 65; return; // KEY_COMMA
+		case 51: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 73; return; // KEY_PERIOD
+		case 52: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 74; return; // KEY_SLASH
+		case 53: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 88; return; // KEY_CAPS_LOCK
+		case 54: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 5; return; // KEY_F1
+		case 55: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 6; return; // KEY_F2
+		case 56: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 4; return; // KEY_F3
+		case 57: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 12; return; // KEY_F4
+		case 58: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 3; return; // KEY_F5
+		case 59: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 11; return; // KEY_F6
+		case 60: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 131; return; // KEY_F7
+		case 61: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 10; return; // KEY_F8
+		case 62: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 1; return; // KEY_F9
+		case 63: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 9; return; // KEY_F10
+		case 64: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 120; return; // KEY_F11
+		case 65: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 7; return; // KEY_F12
+		case 66: *ps2_type = PS2_KEY_TYPE_PRINT; *ps2_code = 255; return; // KEY_PRINT
+		case 67: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 112; return; // KEY_INSERT
+		case 68: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 108; return; // KEY_HOME
+		case 69: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 125; return; // KEY_PAGE_UP
+		case 70: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 113; return; // KEY_DELETE
+		case 71: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 105; return; // KEY_END
+		case 72: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 122; return; // KEY_PAGE_DOWN
+		case 73: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 116; return; // KEY_RIGHT_ARROW
+		case 74: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 107; return; // KEY_LEFT_ARROW
+		case 75: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 114; return; // KEY_DOWN_ARROW
+		case 76: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 117; return; // KEY_UP_ARROW
+		case 77: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 20; return; // KEY_LEFT_CTRL
+		case 78: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 18; return; // KEY_LEFT_SHIFT
+		case 79: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 17; return; // KEY_LEFT_ALT
+		case 80: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 31; return; // KEY_LEFT_GUI
+		case 81: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 20; return; // KEY_RIGHT_CTRL
+		case 82: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 89; return; // KEY_RIGHT_SHIFT
+		case 83: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 17; return; // KEY_RIGHT_ALT
+		case 84: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 39; return; // KEY_RIGHT_GUI
+		case 85: *ps2_type = PS2_KEY_TYPE_PAUSE; *ps2_code = 255; return; // KEY_PAUSE
+		case 86: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 126; return; // KEY_SCROLL_LOCK
+		case 87: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 119; return; // KEY_NUM_LOCK
+		case 88: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 47; return; // KEY_MENU
+		case 89: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 74; return; // KEYPAD_DIVIDE
+		case 90: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 124; return; // KEYPAD_MULTIPLY
+		case 91: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 123; return; // KEYPAD_SUBTRACT
+		case 92: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 121; return; // KEYPAD_ADD
+		case 93: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 90; return; // KEYPAD_ENTER
+		case 94: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 105; return; // KEYPAD_1
+		case 95: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 114; return; // KEYPAD_2
+		case 96: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 122; return; // KEYPAD_3
+		case 97: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 107; return; // KEYPAD_4
+		case 98: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 115; return; // KEYPAD_5
+		case 99: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 116; return; // KEYPAD_6
+		case 100: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 108; return; // KEYPAD_7
+		case 101: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 117; return; // KEYPAD_8
+		case 102: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 125; return; // KEYPAD_9
+		case 103: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 112; return; // KEYPAD_0
+		case 104: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 113; return; // KEYPAD_DOT
+		case 105: *ps2_type = PS2_KEY_TYPE_SPEC; *ps2_code = 94; return; // KEY_POWER
+		case 106: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 97; return; // KEY_NON_US
+		case 107: *ps2_type = PS2_KEY_TYPE_REG; *ps2_code = 106; return; // KEY_INTERNATIONAL3
+	}
+}
diff --git a/hid/lib/drivers-avr/ps2/keymap.h.mako b/hid/lib/drivers-avr/ps2/keymap.h.mako
new file mode 100644
index 00000000..bc4ecb47
--- /dev/null
+++ b/hid/lib/drivers-avr/ps2/keymap.h.mako
@@ -0,0 +1,44 @@
+/*****************************************************************************
+#                                                                            #
+#    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
+
+
+enum Ps2KeyType : uint8_t {
+	PS2_KEY_TYPE_UNKNOWN = 0,
+	PS2_KEY_TYPE_REG = 1,
+	PS2_KEY_TYPE_SPEC = 2,
+	PS2_KEY_TYPE_PRINT = 3,
+	PS2_KEY_TYPE_PAUSE = 4,
+};
+
+<%! import operator %>
+void keymapPs2(uint8_t code, Ps2KeyType *ps2_type, uint8_t *ps2_code) {
+	*ps2_type = PS2_KEY_TYPE_UNKNOWN;
+	*ps2_code = 0;
+
+	switch (code) {
+% for km in sorted(keymap, key=operator.attrgetter("mcu_code")):
+		case ${km.mcu_code}: *ps2_type = PS2_KEY_TYPE_${km.ps2_key.type.upper()}; *ps2_code = ${km.ps2_key.code}; return; // ${km.arduino_name}
+% endfor
+	}
+}
diff --git a/hid/lib/drivers-avr/spi.cpp b/hid/lib/drivers-avr/spi.cpp
new file mode 100644
index 00000000..e2b56928
--- /dev/null
+++ b/hid/lib/drivers-avr/spi.cpp
@@ -0,0 +1,83 @@
+/*****************************************************************************
+#                                                                            #
+#    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/>.  #
+#                                                                            #
+*****************************************************************************/
+
+
+#include "spi.h"
+
+#include <Arduino.h>
+#include <SPI.h>
+
+
+static volatile uint8_t _spi_in[8] = {0};
+static volatile uint8_t _spi_in_index = 0;
+
+static volatile uint8_t _spi_out[8] = {0};
+static volatile uint8_t _spi_out_index = 0;
+
+
+void spiBegin() {
+	pinMode(MISO, OUTPUT);
+	SPCR = (1 << SPE) | (1 << SPIE); // Slave, SPI En, IRQ En
+}
+
+bool spiReady() {
+	return (!_spi_out[0] && _spi_in_index == 8);
+}
+
+const uint8_t *spiGet() {
+	return (const uint8_t *)_spi_in;
+}
+
+void spiWrite(const uint8_t *data) {
+	// Меджик в нулевом байте разрешает начать ответ
+	for (int index = 7; index >= 0; --index) {
+		_spi_out[index] = data[index];
+	}
+}
+
+
+ISR(SPI_STC_vect) {
+	uint8_t in = SPDR;
+	if (_spi_out[0] && _spi_out_index < 8) {
+		SPDR = _spi_out[_spi_out_index];
+		if (!(SPSR & (1 << WCOL))) {
+			++_spi_out_index;
+			if (_spi_out_index == 8) {
+				_spi_out_index = 0;
+				_spi_in_index = 0;
+				_spi_out[0] = 0;
+			}
+		}
+	} else {
+		static bool receiving = false;
+		if (!receiving && in != 0) {
+			receiving = true;
+		}
+		if (receiving && _spi_in_index < 8) {
+			_spi_in[_spi_in_index] = in;
+			++_spi_in_index;
+		}
+		if (_spi_in_index == 8) {
+			receiving = false;
+		}
+		SPDR = 0;
+	}
+}
diff --git a/hid/lib/drivers-avr/spi.h b/hid/lib/drivers-avr/spi.h
new file mode 100644
index 00000000..fc9337e5
--- /dev/null
+++ b/hid/lib/drivers-avr/spi.h
@@ -0,0 +1,31 @@
+/*****************************************************************************
+#                                                                            #
+#    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>
+
+
+void spiBegin();
+bool spiReady();
+const uint8_t *spiGet();
+void spiWrite(const uint8_t *data);
diff --git a/hid/lib/drivers-avr/usb/hid.h b/hid/lib/drivers-avr/usb/hid.h
new file mode 100644
index 00000000..0bc5cb2d
--- /dev/null
+++ b/hid/lib/drivers-avr/usb/hid.h
@@ -0,0 +1,229 @@
+/*****************************************************************************
+#                                                                            #
+#    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 "keyboard.h"
+#include "mouse.h"
+#include "tools.h"
+#ifdef AUM
+#	include "aum.h"
+#endif
+#include "keymap.h"
+
+using namespace DRIVERS;
+
+// -----------------------------------------------------------------------------
+#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 true; } }
+#	else
+#		define CHECK_AUM_USB
+#	endif
+#	define CLS_IS_OFFLINE(_hid) \
+		bool isOffline() override { \
+			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 false; \
+			} \
+			return true; \
+		}
+#	define CHECK_HID_EP { if (isOffline()) return; }
+
+#else
+#	define CLS_IS_OFFLINE(_hid) \
+		bool isOffline() override { \
+			return false; \
+		}
+#	define CHECK_HID_EP
+
+#endif
+
+class UsbKeyboard : public DRIVERS::Keyboard {
+	public:
+		UsbKeyboard() : DRIVERS::Keyboard(DRIVERS::USB_KEYBOARD) {}
+
+		void begin() override {
+			_kbd.begin();
+		}
+
+		void periodic() override {
+#			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 = !isOffline();
+				if (!_sent || (online && !prev_online)) {
+					_sendCurrent();
+				}
+				prev_online = online;
+				prev_ts = micros();
+			}
+#			endif
+		}
+
+		void clear() override {
+			_kbd.releaseAll();
+		}
+
+		void sendKey(uint8_t code, bool state) override {
+			KeyboardKeycode usb_code = keymapUsb(code);
+			if (usb_code != KEY_ERROR_UNDEFINED) {
+				if (state ? _kbd.add(usb_code) : _kbd.remove(usb_code)) {
+					_sendCurrent();
+				}
+			}
+		}
+
+		CLS_IS_OFFLINE(_kbd)
+
+		KeyboardLedsState getLeds() override {
+			uint8_t leds = _kbd.getLeds();
+			KeyboardLedsState result = {
+				.caps = leds & LED_CAPS_LOCK,
+				.scroll = leds & LED_SCROLL_LOCK,
+				.num = leds & LED_NUM_LOCK,
+			};
+			return result;
+		}
+
+	private:
+		BootKeyboard_ _kbd;
+		bool _sent = true;
+
+		void _sendCurrent() {
+#			ifdef HID_USB_CHECK_ENDPOINT
+			if (isOffline()) {
+				_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 \
+		) override { \
+			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 DRIVERS::Mouse {
+	public:
+		UsbMouseAbsolute(DRIVERS::type _type) : Mouse(_type) {}
+
+		void begin() override {
+			_mouse.begin();
+			_mouse.setWin98FixEnabled(getType() == DRIVERS::USB_MOUSE_ABSOLUTE_WIN98);
+		}
+
+		void clear() override {
+			_mouse.releaseAll();
+		}
+
+		CLS_SEND_BUTTONS
+
+		void sendMove(int x, int y) override {
+			CHECK_HID_EP;
+			_mouse.moveTo(x, y);
+		}
+
+		void sendWheel(int delta_y) override {
+			// delta_x is not supported by hid-project now
+			CHECK_HID_EP;
+			_mouse.move(0, 0, delta_y);
+		}
+
+		CLS_IS_OFFLINE(_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 DRIVERS::Mouse {
+	public:
+		UsbMouseRelative() : DRIVERS::Mouse(DRIVERS::USB_MOUSE_RELATIVE) {}
+
+		void begin() override {
+			_mouse.begin();
+		}
+
+		void clear() override {
+			_mouse.releaseAll();
+		}
+
+		CLS_SEND_BUTTONS
+
+		void sendRelative(int x, int y) override {
+			CHECK_HID_EP;
+			_mouse.move(x, y, 0);
+		}
+
+		void sendWheel(int delta_y) override {
+			// delta_x is not supported by hid-project now
+			CHECK_HID_EP;
+			_mouse.move(0, 0, delta_y);
+		}
+
+		CLS_IS_OFFLINE(_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_IS_OFFLINE
+#undef CHECK_HID_EP
diff --git a/hid/lib/drivers-avr/usb/keymap.h b/hid/lib/drivers-avr/usb/keymap.h
new file mode 100644
index 00000000..224a181c
--- /dev/null
+++ b/hid/lib/drivers-avr/usb/keymap.h
@@ -0,0 +1,139 @@
+/*****************************************************************************
+#                                                                            #
+#    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 <HID-Project.h>
+
+
+KeyboardKeycode keymapUsb(uint8_t code) {
+	switch (code) {
+		case 1: return KEY_A;
+		case 2: return KEY_B;
+		case 3: return KEY_C;
+		case 4: return KEY_D;
+		case 5: return KEY_E;
+		case 6: return KEY_F;
+		case 7: return KEY_G;
+		case 8: return KEY_H;
+		case 9: return KEY_I;
+		case 10: return KEY_J;
+		case 11: return KEY_K;
+		case 12: return KEY_L;
+		case 13: return KEY_M;
+		case 14: return KEY_N;
+		case 15: return KEY_O;
+		case 16: return KEY_P;
+		case 17: return KEY_Q;
+		case 18: return KEY_R;
+		case 19: return KEY_S;
+		case 20: return KEY_T;
+		case 21: return KEY_U;
+		case 22: return KEY_V;
+		case 23: return KEY_W;
+		case 24: return KEY_X;
+		case 25: return KEY_Y;
+		case 26: return KEY_Z;
+		case 27: return KEY_1;
+		case 28: return KEY_2;
+		case 29: return KEY_3;
+		case 30: return KEY_4;
+		case 31: return KEY_5;
+		case 32: return KEY_6;
+		case 33: return KEY_7;
+		case 34: return KEY_8;
+		case 35: return KEY_9;
+		case 36: return KEY_0;
+		case 37: return KEY_ENTER;
+		case 38: return KEY_ESC;
+		case 39: return KEY_BACKSPACE;
+		case 40: return KEY_TAB;
+		case 41: return KEY_SPACE;
+		case 42: return KEY_MINUS;
+		case 43: return KEY_EQUAL;
+		case 44: return KEY_LEFT_BRACE;
+		case 45: return KEY_RIGHT_BRACE;
+		case 46: return KEY_BACKSLASH;
+		case 47: return KEY_SEMICOLON;
+		case 48: return KEY_QUOTE;
+		case 49: return KEY_TILDE;
+		case 50: return KEY_COMMA;
+		case 51: return KEY_PERIOD;
+		case 52: return KEY_SLASH;
+		case 53: return KEY_CAPS_LOCK;
+		case 54: return KEY_F1;
+		case 55: return KEY_F2;
+		case 56: return KEY_F3;
+		case 57: return KEY_F4;
+		case 58: return KEY_F5;
+		case 59: return KEY_F6;
+		case 60: return KEY_F7;
+		case 61: return KEY_F8;
+		case 62: return KEY_F9;
+		case 63: return KEY_F10;
+		case 64: return KEY_F11;
+		case 65: return KEY_F12;
+		case 66: return KEY_PRINT;
+		case 67: return KEY_INSERT;
+		case 68: return KEY_HOME;
+		case 69: return KEY_PAGE_UP;
+		case 70: return KEY_DELETE;
+		case 71: return KEY_END;
+		case 72: return KEY_PAGE_DOWN;
+		case 73: return KEY_RIGHT_ARROW;
+		case 74: return KEY_LEFT_ARROW;
+		case 75: return KEY_DOWN_ARROW;
+		case 76: return KEY_UP_ARROW;
+		case 77: return KEY_LEFT_CTRL;
+		case 78: return KEY_LEFT_SHIFT;
+		case 79: return KEY_LEFT_ALT;
+		case 80: return KEY_LEFT_GUI;
+		case 81: return KEY_RIGHT_CTRL;
+		case 82: return KEY_RIGHT_SHIFT;
+		case 83: return KEY_RIGHT_ALT;
+		case 84: return KEY_RIGHT_GUI;
+		case 85: return KEY_PAUSE;
+		case 86: return KEY_SCROLL_LOCK;
+		case 87: return KEY_NUM_LOCK;
+		case 88: return KEY_MENU;
+		case 89: return KEYPAD_DIVIDE;
+		case 90: return KEYPAD_MULTIPLY;
+		case 91: return KEYPAD_SUBTRACT;
+		case 92: return KEYPAD_ADD;
+		case 93: return KEYPAD_ENTER;
+		case 94: return KEYPAD_1;
+		case 95: return KEYPAD_2;
+		case 96: return KEYPAD_3;
+		case 97: return KEYPAD_4;
+		case 98: return KEYPAD_5;
+		case 99: return KEYPAD_6;
+		case 100: return KEYPAD_7;
+		case 101: return KEYPAD_8;
+		case 102: return KEYPAD_9;
+		case 103: return KEYPAD_0;
+		case 104: return KEYPAD_DOT;
+		case 105: return KEY_POWER;
+		case 106: return KEY_NON_US;
+		case 107: return KEY_INTERNATIONAL3;
+		default: return KEY_ERROR_UNDEFINED;
+	}
+}
diff --git a/hid/lib/drivers-avr/usb/keymap.h.mako b/hid/lib/drivers-avr/usb/keymap.h.mako
new file mode 100644
index 00000000..fe295bea
--- /dev/null
+++ b/hid/lib/drivers-avr/usb/keymap.h.mako
@@ -0,0 +1,35 @@
+/*****************************************************************************
+#                                                                            #
+#    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 <HID-Project.h>
+
+<%! import operator %>
+KeyboardKeycode keymapUsb(uint8_t code) {
+	switch (code) {
+% for km in sorted(keymap, key=operator.attrgetter("mcu_code")):
+		case ${km.mcu_code}: return ${km.arduino_name};
+% endfor
+		default: return KEY_ERROR_UNDEFINED;
+	}
+}
diff --git a/hid/lib/drivers/aum.h b/hid/lib/drivers/aum.h
new file mode 100644
index 00000000..42b379aa
--- /dev/null
+++ b/hid/lib/drivers/aum.h
@@ -0,0 +1,48 @@
+/*****************************************************************************
+#                                                                            #
+#    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 <digitalWriteFast.h>
+
+
+inline void aumInit() {
+	pinModeFast(AUM_IS_USB_POWERED_PIN, INPUT);
+	pinModeFast(AUM_SET_USB_VBUS_PIN, OUTPUT);
+	pinModeFast(AUM_SET_USB_CONNECTED_PIN, OUTPUT);
+	digitalWriteFast(AUM_SET_USB_CONNECTED_PIN, HIGH);
+}
+
+inline void aumProxyUsbVbus() {
+	bool vbus = digitalReadFast(AUM_IS_USB_POWERED_PIN);
+	if (digitalReadFast(AUM_SET_USB_VBUS_PIN) != vbus) {
+		digitalWriteFast(AUM_SET_USB_VBUS_PIN, vbus);
+	}
+}
+
+inline void aumSetUsbConnected(bool connected) {
+	digitalWriteFast(AUM_SET_USB_CONNECTED_PIN, connected);
+}
+
+inline bool aumIsUsbConnected() {
+	return digitalReadFast(AUM_SET_USB_CONNECTED_PIN);
+}
diff --git a/hid/lib/drivers/factory.h b/hid/lib/drivers/factory.h
new file mode 100644
index 00000000..c787347a
--- /dev/null
+++ b/hid/lib/drivers/factory.h
@@ -0,0 +1,33 @@
+/*****************************************************************************
+#                                                                            #
+#    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 "keyboard.h"
+#include "mouse.h"
+
+namespace DRIVERS {
+
+	struct Factory {
+		static Keyboard *makeKeyboard(type _type);
+		static Mouse *makeMouse(type _type);
+	};
+}
diff --git a/hid/lib/drivers/tools.cpp b/hid/lib/drivers/tools.cpp
new file mode 100644
index 00000000..7f0e29ca
--- /dev/null
+++ b/hid/lib/drivers/tools.cpp
@@ -0,0 +1,30 @@
+/*****************************************************************************
+#                                                                            #
+#    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/>.  #
+#                                                                            #
+*****************************************************************************/
+
+#include <Arduino.h>
+
+bool is_micros_timed_out(unsigned long start_ts, unsigned long timeout) {
+	unsigned long now = micros();
+	return (
+		(now >= start_ts && now - start_ts > timeout)
+		|| (now < start_ts && ((unsigned long)-1) - start_ts + now > timeout)
+	);
+}
diff --git a/hid/lib/drivers/tools.h b/hid/lib/drivers/tools.h
new file mode 100644
index 00000000..0f11c7c3
--- /dev/null
+++ b/hid/lib/drivers/tools.h
@@ -0,0 +1,26 @@
+/*****************************************************************************
+#                                                                            #
+#    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
+
+
+bool is_micros_timed_out(unsigned long start_ts, unsigned long timeout);