adb: fix read reg 3 byte ordering
[qemu.git] / hw / input / adb-internal.h
1 /*
2 * QEMU ADB support
3 *
4 * Copyright (c) 2004 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24
25 /* ADB commands */
26
27 #define ADB_BUSRESET 0x00
28 #define ADB_FLUSH 0x01
29 #define ADB_WRITEREG 0x08
30 #define ADB_READREG 0x0c
31
32 /* ADB device commands */
33
34 #define ADB_CMD_SELF_TEST 0xff
35 #define ADB_CMD_CHANGE_ID 0xfe
36 #define ADB_CMD_CHANGE_ID_AND_ACT 0xfd
37 #define ADB_CMD_CHANGE_ID_AND_ENABLE 0x00
38
39 /* ADB default device IDs (upper 4 bits of ADB command byte) */
40
41 #define ADB_DEVID_DONGLE 1
42 #define ADB_DEVID_KEYBOARD 2
43 #define ADB_DEVID_MOUSE 3
44 #define ADB_DEVID_TABLET 4
45 #define ADB_DEVID_MODEM 5
46 #define ADB_DEVID_MISC 7
47
48 extern const VMStateDescription vmstate_adb_device;
49