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|
/*****************************************************************************
# #
# KVMD - The main PiKVM daemon. #
# #
# Copyright (C) 2018-2021 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/>. #
# #
*****************************************************************************/
// #define CMD_SERIAL Serial1
// #define CMD_SERIAL_SPEED 115200
// #define CMD_SERIAL_TIMEOUT 100000
// -- OR --
// #define CMD_SPI
#if !(defined(CMD_SERIAL) || defined(CMD_SPI))
# error CMD phy is not defined
#endif
#include <Arduino.h>
#ifdef HID_DYNAMIC
# include <avr/eeprom.h>
#endif
#include "tools.h"
#include "proto.h"
#ifdef CMD_SPI
# include "spi.h"
#endif
#ifdef AUM
# include "aum.h"
#endif
#include "usb/hid.h"
#include "ps2/hid.h"
// -----------------------------------------------------------------------------
static UsbKeyboard *_usb_kbd = NULL;
static UsbMouseAbsolute *_usb_mouse_abs = NULL;
static UsbMouseRelative *_usb_mouse_rel = NULL;
static Ps2Keyboard *_ps2_kbd = NULL;
#ifdef HID_DYNAMIC
static bool _reset_required = false;
static int _readOutputs(void) {
uint8_t data[8];
eeprom_read_block(data, 0, 8);
if (data[0] != PROTO::MAGIC || PROTO::crc16(data, 6) != PROTO::merge8(data[6], data[7])) {
return -1;
}
return data[1];
}
static void _writeOutputs(uint8_t mask, uint8_t outputs, bool force) {
int old = 0;
if (!force) {
old = _readOutputs();
if (old < 0) {
old = 0;
}
}
uint8_t data[8] = {0};
data[0] = PROTO::MAGIC;
data[1] = (old & ~mask) | outputs;
PROTO::split16(PROTO::crc16(data, 6), &data[6], &data[7]);
eeprom_update_block(data, 0, 8);
}
#endif
static void _initOutputs() {
int outputs;
# ifdef HID_DYNAMIC
outputs = _readOutputs();
if (outputs < 0) {
# endif
outputs = 0;
# if defined(HID_WITH_USB) && defined(HID_SET_USB_KBD)
outputs |= PROTO::OUTPUTS1::KEYBOARD::USB;
# elif defined(HID_WITH_PS2) && defined(HID_SET_PS2_KBD)
outputs |= PROTO::OUTPUTS1::KEYBOARD::PS2;
# endif
# if defined(HID_WITH_USB) && defined(HID_SET_USB_MOUSE_ABS)
outputs |= PROTO::OUTPUTS1::MOUSE::USB_ABS;
# elif defined(HID_WITH_USB) && defined(HID_SET_USB_MOUSE_REL)
outputs |= PROTO::OUTPUTS1::MOUSE::USB_REL;
# elif defined(HID_WITH_PS2) && defined(HID_SET_PS2_MOUSE)
outputs |= PROTO::OUTPUTS1::MOUSE::PS2;
# elif defined(HID_WITH_USB) && defined(HID_WITH_USB_WIN98) && defined(HID_SET_USB_MOUSE_WIN98)
outputs |= PROTO::OUTPUTS1::MOUSE::USB_WIN98;
# endif
# ifdef HID_DYNAMIC
_writeOutputs(0xFF, outputs, true);
}
# endif
uint8_t kbd = outputs & PROTO::OUTPUTS1::KEYBOARD::MASK;
switch (kbd) {
# ifdef HID_WITH_USB
case PROTO::OUTPUTS1::KEYBOARD::USB: _usb_kbd = new UsbKeyboard(); break;
# endif
# ifdef HID_WITH_PS2
case PROTO::OUTPUTS1::KEYBOARD::PS2: _ps2_kbd = new Ps2Keyboard(); break;
# endif
}
uint8_t mouse = outputs & PROTO::OUTPUTS1::MOUSE::MASK;
switch (mouse) {
# ifdef HID_WITH_USB
case PROTO::OUTPUTS1::MOUSE::USB_ABS:
case PROTO::OUTPUTS1::MOUSE::USB_WIN98: _usb_mouse_abs = new UsbMouseAbsolute(); break;
case PROTO::OUTPUTS1::MOUSE::USB_REL: _usb_mouse_rel = new UsbMouseRelative(); break;
# endif
}
USBDevice.attach();
switch (kbd) {
# ifdef HID_WITH_USB
case PROTO::OUTPUTS1::KEYBOARD::USB: _usb_kbd->begin(); break;
# endif
# ifdef HID_WITH_PS2
case PROTO::OUTPUTS1::KEYBOARD::PS2: _ps2_kbd->begin(); break;
# endif
}
switch (mouse) {
# ifdef HID_WITH_USB
case PROTO::OUTPUTS1::MOUSE::USB_ABS:
# ifdef HID_WITH_USB_WIN98
case PROTO::OUTPUTS1::MOUSE::USB_WIN98:
# endif
_usb_mouse_abs->begin(mouse == PROTO::OUTPUTS1::MOUSE::USB_WIN98);
break;
case PROTO::OUTPUTS1::MOUSE::USB_REL: _usb_mouse_rel->begin(); break;
# endif
}
}
// -----------------------------------------------------------------------------
static void _cmdSetKeyboard(const uint8_t *data) { // 1 bytes
# ifdef HID_DYNAMIC
_writeOutputs(PROTO::OUTPUTS1::KEYBOARD::MASK, data[0], false);
_reset_required = true;
# endif
}
static void _cmdSetMouse(const uint8_t *data) { // 1 bytes
# ifdef HID_DYNAMIC
_writeOutputs(PROTO::OUTPUTS1::MOUSE::MASK, data[0], false);
_reset_required = true;
# endif
}
static void _cmdSetConnected(const uint8_t *data) { // 1 byte
# ifdef AUM
aumSetUsbConnected(data[0]);
# endif
}
static void _cmdClearHid(const uint8_t *_) { // 0 bytes
if (_usb_kbd) {
_usb_kbd->clear();
}
if (_usb_mouse_abs) {
_usb_mouse_abs->clear();
} else if (_usb_mouse_rel) {
_usb_mouse_rel->clear();
}
}
static void _cmdKeyEvent(const uint8_t *data) { // 2 bytes
if (_usb_kbd) {
_usb_kbd->sendKey(data[0], data[1]);
} else if (_ps2_kbd) {
_ps2_kbd->sendKey(data[0], data[1]);
}
}
static void _cmdMouseButtonEvent(const uint8_t *data) { // 2 bytes
# define MOUSE_PAIR(_state, _button) \
_state & PROTO::CMD::MOUSE::_button::SELECT, \
_state & PROTO::CMD::MOUSE::_button::STATE
# define SEND_BUTTONS(_hid) \
_hid->sendButtons( \
MOUSE_PAIR(data[0], LEFT), \
MOUSE_PAIR(data[0], RIGHT), \
MOUSE_PAIR(data[0], MIDDLE), \
MOUSE_PAIR(data[1], EXTRA_UP), \
MOUSE_PAIR(data[1], EXTRA_DOWN) \
);
if (_usb_mouse_abs) {
SEND_BUTTONS(_usb_mouse_abs);
} else if (_usb_mouse_rel) {
SEND_BUTTONS(_usb_mouse_rel);
}
# undef SEND_BUTTONS
# undef MOUSE_PAIR
}
static void _cmdMouseMoveEvent(const uint8_t *data) { // 4 bytes
// See /kvmd/apps/otg/hid/keyboard.py for details
if (_usb_mouse_abs) {
_usb_mouse_abs->sendMove(
PROTO::merge8_int(data[0], data[1]),
PROTO::merge8_int(data[2], data[3])
);
}
}
static void _cmdMouseRelativeEvent(const uint8_t *data) { // 2 bytes
if (_usb_mouse_rel) {
_usb_mouse_rel->sendRelative(data[0], data[1]);
}
}
static void _cmdMouseWheelEvent(const uint8_t *data) { // 2 bytes
// Y only, X is not supported
if (_usb_mouse_abs) {
_usb_mouse_abs->sendWheel(data[1]);
} else if (_usb_mouse_rel) {
_usb_mouse_rel->sendWheel(data[1]);
}
}
static uint8_t _handleRequest(const uint8_t *data) { // 8 bytes
if (PROTO::crc16(data, 6) == PROTO::merge8(data[6], data[7])) {
# define HANDLE(_handler) { _handler(data + 2); return PROTO::PONG::OK; }
switch (data[1]) {
case PROTO::CMD::PING: return PROTO::PONG::OK;
case PROTO::CMD::SET_KEYBOARD: HANDLE(_cmdSetKeyboard);
case PROTO::CMD::SET_MOUSE: HANDLE(_cmdSetMouse);
case PROTO::CMD::SET_CONNECTED: HANDLE(_cmdSetConnected);
case PROTO::CMD::CLEAR_HID: HANDLE(_cmdClearHid);
case PROTO::CMD::KEYBOARD::KEY: HANDLE(_cmdKeyEvent);
case PROTO::CMD::MOUSE::BUTTON: HANDLE(_cmdMouseButtonEvent);
case PROTO::CMD::MOUSE::MOVE: HANDLE(_cmdMouseMoveEvent);
case PROTO::CMD::MOUSE::RELATIVE: HANDLE(_cmdMouseRelativeEvent);
case PROTO::CMD::MOUSE::WHEEL: HANDLE(_cmdMouseWheelEvent);
case PROTO::CMD::REPEAT: return 0;
default: return PROTO::RESP::INVALID_ERROR;
}
# undef HANDLE
}
return PROTO::RESP::CRC_ERROR;
}
// -----------------------------------------------------------------------------
static void _sendResponse(uint8_t code) {
static uint8_t prev_code = PROTO::RESP::NONE;
if (code == 0) {
code = prev_code; // Repeat the last code
} else {
prev_code = code;
}
uint8_t response[8] = {0};
response[0] = PROTO::MAGIC_RESP;
if (code & PROTO::PONG::OK) {
response[1] = PROTO::PONG::OK;
# ifdef HID_DYNAMIC
if (_reset_required) {
response[1] |= PROTO::PONG::RESET_REQUIRED;
}
response[2] = PROTO::OUTPUTS1::DYNAMIC;
# endif
if (_usb_kbd) {
response[1] |= _usb_kbd->getOfflineAs(PROTO::PONG::KEYBOARD_OFFLINE);
response[1] |= _usb_kbd->getLedsAs(PROTO::PONG::CAPS, PROTO::PONG::SCROLL, PROTO::PONG::NUM);
response[2] |= PROTO::OUTPUTS1::KEYBOARD::USB;
} else if (_ps2_kbd) {
response[1] |= _ps2_kbd->getOfflineAs(PROTO::PONG::KEYBOARD_OFFLINE);
response[1] |= _ps2_kbd->getLedsAs(PROTO::PONG::CAPS, PROTO::PONG::SCROLL, PROTO::PONG::NUM);
response[2] |= PROTO::OUTPUTS1::KEYBOARD::PS2;
}
if (_usb_mouse_abs) {
response[1] |= _usb_mouse_abs->getOfflineAs(PROTO::PONG::MOUSE_OFFLINE);
if (_usb_mouse_abs->isWin98FixEnabled()) {
response[2] |= PROTO::OUTPUTS1::MOUSE::USB_WIN98;
} else {
response[2] |= PROTO::OUTPUTS1::MOUSE::USB_ABS;
}
} else if (_usb_mouse_rel) {
response[1] |= _usb_mouse_rel->getOfflineAs(PROTO::PONG::MOUSE_OFFLINE);
response[2] |= PROTO::OUTPUTS1::MOUSE::USB_REL;
} // TODO: ps2
# ifdef AUM
response[3] |= PROTO::OUTPUTS2::CONNECTABLE;
if (aumIsUsbConnected()) {
response[3] |= PROTO::OUTPUTS2::CONNECTED;
}
# endif
# ifdef HID_WITH_USB
response[3] |= PROTO::OUTPUTS2::HAS_USB;
# ifdef HID_WITH_USB_WIN98
response[3] |= PROTO::OUTPUTS2::HAS_USB_WIN98;
# endif
# endif
# ifdef HID_WITH_PS2
response[3] |= PROTO::OUTPUTS2::HAS_PS2;
# endif
} else {
response[1] = code;
}
PROTO::split16(PROTO::crc16(response, 6), &response[6], &response[7]);
# ifdef CMD_SERIAL
CMD_SERIAL.write(response, 8);
# elif defined(CMD_SPI)
spiWrite(response);
# endif
}
int main() {
init(); // Embedded
initVariant(); // Arduino
_initOutputs();
# ifdef AUM
aumInit();
# endif
# ifdef CMD_SERIAL
CMD_SERIAL.begin(CMD_SERIAL_SPEED);
unsigned long last = micros();
uint8_t buffer[8];
uint8_t index = 0;
# elif defined(CMD_SPI)
spiBegin();
# endif
while (true) {
# ifdef AUM
aumProxyUsbVbus();
# endif
# ifdef HID_WITH_USB
if (_usb_kbd) {
_usb_kbd->periodic();
}
# endif
# ifdef HID_WITH_PS2
if (_ps2_kbd) {
_ps2_kbd->periodic();
}
# endif
# ifdef CMD_SERIAL
if (CMD_SERIAL.available() > 0) {
buffer[index] = (uint8_t)CMD_SERIAL.read();
if (index == 7) {
_sendResponse(_handleRequest(buffer));
index = 0;
} else {
last = micros();
++index;
}
} else if (index > 0) {
if (is_micros_timed_out(last, CMD_SERIAL_TIMEOUT)) {
_sendResponse(PROTO::RESP::TIMEOUT_ERROR);
index = 0;
}
}
# elif defined(CMD_SPI)
if (spiReady()) {
_sendResponse(_handleRequest(spiGet()));
}
# endif
}
return 0;
}
|
