1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
|
/*****************************************************************************
# #
# 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>
#include "tools.h"
#include "proto.h"
#ifdef AUM
# include "aum.h"
#endif
#include "board.h"
#include "outputs.h"
static DRIVERS::Connection* _conn;
static DRIVERS::Board* _board;
static Outputs _out;
#ifdef HID_DYNAMIC
static bool _reset_required = false;
static unsigned long _reset_timestamp;
# define RESET_TIMEOUT 500000
#endif
// -----------------------------------------------------------------------------
#ifdef HID_DYNAMIC
static void _resetRequest() {
_reset_required = true;
_reset_timestamp = micros();
}
#endif
static void _cmdSetKeyboard(const uint8_t *data) { // 1 bytes
# ifdef HID_DYNAMIC
_out.writeOutputs(PROTO::OUTPUTS1::KEYBOARD::MASK, data[0], false);
_resetRequest();
# endif
}
static void _cmdSetMouse(const uint8_t *data) { // 1 bytes
# ifdef HID_DYNAMIC
_out.writeOutputs(PROTO::OUTPUTS1::MOUSE::MASK, data[0], false);
_resetRequest();
# endif
}
static void _cmdSetConnected(const uint8_t *data) { // 1 byte
# ifdef AUM
aumSetUsbConnected(data[0]);
# endif
}
static void _cmdClearHid(const uint8_t *_) { // 0 bytes
_out.kbd->clear();
_out.mouse->clear();
}
static void _cmdKeyEvent(const uint8_t *data) { // 2 bytes
_out.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
_out.mouse->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)
);
# undef MOUSE_PAIR
}
static void _cmdMouseMoveEvent(const uint8_t *data) { // 4 bytes
// See /kvmd/apps/otg/hid/keyboard.py for details
_out.mouse->sendMove(
PROTO::merge8_int(data[0], data[1]),
PROTO::merge8_int(data[2], data[3])
);
}
static void _cmdMouseRelativeEvent(const uint8_t *data) { // 2 bytes
_out.mouse->sendRelative(data[0], data[1]);
}
static void _cmdMouseWheelEvent(const uint8_t *data) { // 2 bytes
// Y only, X is not supported
_out.mouse->sendWheel(data[1]);
}
static uint8_t _handleRequest(const uint8_t *data) { // 8 bytes
_board->updateStatus(DRIVERS::RX_DATA);
// FIXME: See kvmd/kvmd#80
// Should input buffer be cleared in this case?
if (data[0] == PROTO::MAGIC && 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;
if (is_micros_timed_out(_reset_timestamp, RESET_TIMEOUT)) {
_board->reset();
}
}
response[2] = PROTO::OUTPUTS1::DYNAMIC;
# endif
if (_out.kbd->getType() != DRIVERS::DUMMY) {
if(_out.kbd->isOffline()) {
response[1] |= PROTO::PONG::KEYBOARD_OFFLINE;
} else {
_board->updateStatus(DRIVERS::KEYBOARD_ONLINE);
}
DRIVERS::KeyboardLedsState leds = _out.kbd->getLeds();
response[1] |= (leds.caps ? PROTO::PONG::CAPS : 0);
response[1] |= (leds.num ? PROTO::PONG::NUM : 0);
response[1] |= (leds.scroll ? PROTO::PONG::SCROLL : 0);
switch (_out.kbd->getType()) {
case DRIVERS::USB_KEYBOARD:
response[2] |= PROTO::OUTPUTS1::KEYBOARD::USB;
break;
case DRIVERS::PS2_KEYBOARD:
response[2] |= PROTO::OUTPUTS1::KEYBOARD::PS2;
break;
}
}
if (_out.mouse->getType() != DRIVERS::DUMMY) {
if(_out.mouse->isOffline()) {
response[1] |= PROTO::PONG::MOUSE_OFFLINE;
} else {
_board->updateStatus(DRIVERS::MOUSE_ONLINE);
}
switch (_out.mouse->getType()) {
case DRIVERS::USB_MOUSE_ABSOLUTE_WIN98:
response[2] |= PROTO::OUTPUTS1::MOUSE::USB_WIN98;
break;
case DRIVERS::USB_MOUSE_ABSOLUTE:
response[2] |= PROTO::OUTPUTS1::MOUSE::USB_ABS;
break;
case DRIVERS::USB_MOUSE_RELATIVE:
response[2] |= PROTO::OUTPUTS1::MOUSE::USB_REL;
break;
}
} // 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]);
_conn->write(response, 8);
}
static void _onTimeout() {
_sendResponse(PROTO::RESP::TIMEOUT_ERROR);
}
static void _onData(const uint8_t * data, size_t len) {
_sendResponse(_handleRequest(data));
}
void setup() {
_out.initOutputs();
# ifdef AUM
aumInit();
# endif
_conn = DRIVERS::Factory::makeConnection(DRIVERS::CONNECTION);
_conn->onTimeout(_onTimeout);
_conn->onData(_onData);
_conn->begin();
_board = DRIVERS::Factory::makeBoard(DRIVERS::BOARD);
}
void loop() {
# ifdef AUM
aumProxyUsbVbus();
# endif
_out.kbd->periodic();
_out.mouse->periodic();
_board->periodic();
_conn->periodic();
}
|
