56.3. УСТРОЙСТВА ВВОДА
THIS SECTION IS UNDER CONSTRUCTION
2D устройства ввода
- Mouse relative position
- Trackball
- Joystick
- Digitizer/Tablet/Touch pad absolute position
- Light Pen
- Touch Screen
Мышь
Принцип работы мыши:
Принцип работы оптической мыши:
Что видит оптическая мышь:
Trackball:
Serial Mouse connector
DB9 DB25 Mouse Signal COM-port signal
2 3 Data RD
5 7 GND GND
7(4) 4(20) +Vcc RTS(DTR)
3 2 -Vcc TD
PS/2 Mouse connector
/--+--\ 1 Mouse Data
/ 6 X 5 \ 2
|4 X 3| 3 GND
\ 2 1 / 4 Vcc (+5V)
+-----+ 5 Mouse clock
6
SERIAL MOUSE PROTOCOLS
Microsoft Serial Mouse
Microsoft Serial Mouse have 2 buttons.
1200 baud, 7 bit word len, parity off
6 5 4 3 2 1 0
+----+----+----+----+----+----+----+
| 1 | L | R | Y7 | Y6 | X7 | X6 | +0000
+----+----+----+----+----+----+----+
| 0 | X5 | X4 | X3 | X2 | X1 | X0 | +0001
+----+----+----+----+----+----+----+
| 0 | Y5 | Y4 | Y3 | Y2 | Y1 | Y0 | +0002
+----+----+----+----+----+----+----+
Microsoft Serial Mouse +
Microsoft Serial Mouse+ have 3 buttons.
1200 baud, 7 bit word len, parity off
6 5 4 3 2 1 0
+----+----+----+----+----+----+----+
| 1 | L | R | Y7 | Y6 | X7 | X6 | +0000
+----+----+----+----+----+----+----+
| 0 | X5 | X4 | X3 | X2 | X1 | X0 | +0001
+----+----+----+----+----+----+----+
| 0 | Y5 | Y4 | Y3 | Y2 | Y1 | Y0 | +0002
+----+----+----+----+----+----+----+
| 0 | M | 0 | 0 | 0 | 0 | 0 | +0003
+----+----+----+----+----+----+----+
3D Serial Mouse
1200 baud, 7 bit word len, parity off
6 5 4 3 2 1 0
+----+----+----+----+----+----+----+
| 1 | L | R | Y7 | Y6 | X7 | X6 | +0000
+----+----+----+----+----+----+----+
| 0 | X5 | X4 | X3 | X2 | X1 | X0 | +0001
+----+----+----+----+----+----+----+
| 0 | Y5 | Y4 | Y3 | Y2 | Y1 | Y0 | +0002
+----+----+----+----+----+----+----+
| 0 | 0 | R0 | Z3 | Z2 | Z1 | Z0 | +0003
+----+----+----+----+----+----+----+
PC Mouse
PC Mouse have 3 buttons.
1200 baud, 8 bit, parity off
7 6 5 4 3 2 1 0
+----+----+----+----+----+----+----+----+
| 1 | 0 | 0 | 0 | 0 | L | M | R | +0000
+----+----+----+----+----+----+----+----+
| X7'| X6'| X5'| X4'| X3'| X2'| X1'| X0'| +0001
+----+----+----+----+----+----+----+----+
| Y7'| Y6'| Y5'| Y4'| Y3'| Y2'| Y1'| Y0'| +0002
+----+----+----+----+----+----+----+----+
| X7"| X6"| X5"| X4"| X3"| X2"| X1"| X0"| +0003
+----+----+----+----+----+----+----+----+
| Y7"| Y6"| Y5"| Y4"| Y3"| Y2"| Y1"| Y0"| +0004
+----+----+----+----+----+----+----+----+
PS/2 MOUSE PROTOCOLS
PS/2 Standart Mouse
7 6 5 4 3 2 1 0
+----+----+----+----+----+----+----+----+
| YV | XV | YS | XS | 1 | M' | R | L | +0000
+----+----+----+----+----+----+----+----+
| X7 | X6 | X5 | X4 | X3 | X2 | X1 | X0 | +0001
+----+----+----+----+----+----+----+----+
| Y7 | Y6 | Y5 | Y4 | Y3 | Y2 | Y1 | Y0 | +0002
+----+----+----+----+----+----+----+----+
3D PS/2 Mouse
7 6 5 4 3 2 1 0
+----+----+----+----+----+----+----+----+
| 0 | 0 | YS | XS | 1 | M | R | L | +0000
+----+----+----+----+----+----+----+----+
| X7 | X6 | X5 | X4 | X3 | X2 | X1 | X0 | +0001
+----+----+----+----+----+----+----+----+
| Y7 | Y6 | Y5 | Y4 | Y3 | Y2 | Y1 | Y0 | +0002
+----+----+----+----+----+----+----+----+
| Z7 | Z6 | Z5 | Z4 | Z3 | Z2 | Z1 | Z0 | +0003
+----+----+----+----+----+----+----+----+
PS/2 Wheel Mouse
7 6 5 4 3 2 1 0
+----+----+----+----+----+----+----+----+
| 0 | 0 | YS | XS | 1 | M | R | L | +0000
+----+----+----+----+----+----+----+----+
| X7 | X6 | X5 | X4 | X3 | X2 | X1 | X0 | +0001
+----+----+----+----+----+----+----+----+
| Y7 | Y6 | Y5 | Y4 | Y3 | Y2 | Y1 | Y0 | +0002
+----+----+----+----+----+----+----+----+
| 0 | 0 | B5 | B4 | Z3 | Z2 | Z1 | Z0 | +0003
+----+----+----+----+----+----+----+----+
USB MOUSE PROTOCOLS
USB Mouse is HID device:
03h class HID
01h subclass BootDevices
02h protocol Mouse
Mouse send Reports via Interrupt transfers.
Here is format of first bytes of report:
7 6 5 4 3 2 1 0
+----+----+----+----+----+----+----+----+
| Vendor specific | M | R | L | +0000
+----+----+----+----+----+----+----+----+
| X7 | X6 | X5 | X4 | X3 | X2 | X1 | X0 | +0001
+----+----+----+----+----+----+----+----+
| Y7 | Y6 | Y5 | Y4 | Y3 | Y2 | Y1 | Y0 | +0002
+----+----+----+----+----+----+----+----+
= =
+----+----+----+----+----+----+----+----+
Touch Pad
TouchPad - устройство близкое к мышке, разница в том, что TouchPad,
так же как TouchScreen и LightPen - возвращает абсолютные координаты
перемещения (мышь возвращает относительные).
Примеры пакета TouchPad в режиме относительных координат:
Примеры пакета TouchPad в режиме абсолютных координат:
Джойстик
(а так же руль с педалями)
смотри также секцию 56.9 - Game Port.
Раньше Joystikи вешались на Game Port.
Сейчас это USB устройства c стандартизированным протоколом.
Формат репорта Joysticka:
USB Joystick is HID Device.
03h class HID
01h subclass BootDevices
04h protocol Joystick
7 6 5 4 3 2 1 0
+----+----+----+----+----+----+----+----+
| X Position |
+----+----+----+----+----+----+----+----+
| Y Position |
+----+----+----+----+----+----+----+----+
| B4 | B3 | B2 | B1 | |
+----+----+----+----+----+----+----+----+
| Throttle |
+----+----+----+----+----+----+----+----+
Joystikи c большем числок кнопок, рули педали
имеют расширенные версии репорта - но они уже device depended.
3D устройства ввода
- Dataglove (6 degree of freedom)
- Head mounting display
- Space ball
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