Anonymous user
Mouse Input: Difference between revisions
useful dump to see what's happening
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and Resolution, and then you need to send a 0xF4 command to the mouse, to make the mouse generate movement
packets.
====Initialization dump====
The following is the communication between a computer (running Win98 SE) and a standard PS/2 mouse during the boot process. It is fairly typical of how a PS/2 mouse is initialized and if you want to emulate a PS/2 mouse it must (at minimum) be able to support the following sequence of commands.
<code>
Power-on Reset:
Mouse: AA Self-test passed
Mouse: 00 Mouse ID
Host: FF Reset command
Mouse: FA Acknowledge
Mouse: AA Self-test passed
Mouse: 00 Mouse ID
Host: FF Reset command
Mouse: FA Acknowledge
Mouse: AA Self-test passed
Mouse: 00 Mouse ID
Host: FF Reset command
Mouse: FA Acknowledge
Mouse: AA Self-test passed
Mouse: 00 Mouse ID
Host: F3 Set Sample Rate : Attempt to Enter Microsoft
Mouse: FA Acknowledge : Scrolling Mouse mode
Host: C8 decimal 200 :
Mouse: FA Acknowledge :
Host: F3 Set Sample Rate :
Mouse: FA Acknowledge :
Host: 64 decimal 100 :
Mouse: FA Acknowledge :
Host: F3 Set Sample Rate :
Mouse: FA Acknowledge :
Host: 50 decimal 80 :
Mouse: FA Acknowledge :
Host: F2 Read Device Type :
Mouse: FA Acknowledge :
Mouse: 00 Mouse ID : Response 03 if microsoft scrolling mouse
Host: F3 Set Sample Rate
Mouse: FA Acknowledge
Host: 0A decimal 10
Mouse: FA Acknowledge
Host: F2 Read Device Type
Mouse: FA Acknowledge
Mouse: 00 Mouse ID
Host: E8 Set resolution
Mouse: FA Acknowledge
Host: 03 8 Counts/mm
Mouse: FA Acknowledge
Host: E6 Set Scaling 1:1
Mouse: FA Acknowledge
Host: F3 Set Sample Rate
Mouse: FA Acknowledge
Host: 28 decimal 40
Mouse: FA Acknowledge
Host: F4 Enable
Mouse: FA Acknowledge
Initialization complete...
If I then press the Left Button...
Mouse: 09 1 1 00001001; bit0 = Left button state; bit3 = always 1
Mouse: 00 1 1 No X-movement
Mouse: 00 1 1 No Y-movement
... and release the Left Button:
Mouse: 08 0 1 00001000 bit0 = Left button state; bit3 = always 1
Mouse: 00 1 1 No X-movement
Mouse: 00 1 1 No Y-movement
</code>
The following is the communication between a computer (running Win98SE) and mouse when it boots up with an (emulated) Intellimouse.
<code>
Power-on Reset:
Mouse: AA Self-test passed
Mouse: 00 Mouse ID
Host: FF Reset command
Mouse: FA Acknowledge
Mouse: AA Self-test passed
Mouse: 00 Mouse ID
Host: FF Reset command
Mouse: FA Acknowledge
Mouse: AA Self-test passed
Mouse: 00 Mouse ID
Host: FF Reset command
Mouse: FA Acknowledge
Mouse: AA Self-test passed
Mouse: 00 Mouse ID
Host: F3 Set Sample Rate : Attempt to Enter Microsoft
Mouse: FA Acknowledge : Scrolling Mouse mode
Host: C8 decimal 200 :
Mouse: FA Acknowledge :
Host: F3 Set Sample Rate :
Mouse: FA Acknowledge :
Host: 64 decimal 100 :
Mouse: FA Acknowledge :
Host: F3 Set Sample Rate :
Mouse: FA Acknowledge :
Host: 50 decimal 80 :
Mouse: FA Acknowledge :
Host: F2 Read Device Type :
Mouse: FA Acknowledge :
Mouse: 03 Mouse ID : Response 03 if microsoft scrolling mouse
Host: E8 Set Resolution
Mouse: FA Acknowledge
Host: 03 8 counts/mm
Mouse: FA Acknowledge
Host: E6 Set scaling 1:1
Dev: FA Acknowledge
Host: F3 Set Sample Rate
Mouse: FA Acknowledge
Host: 28 decimal 40
Mouse: FA Acknowledge
Host: F4 Enable device
Mouse: FA Acknowledge
If I then press the left mouse button:
Mouse: 09 00001001 bit0 = Left button state; bit3 = always 1
Mouse: 00 No X-movement
Mouse: 00 No Y-movement
Mouse: 00 No Z-movement
...and then release the left mouse button button:
Mouse: 08 00001000 bit0 = Left button state; bit3 = always 1
Mouse: 00 No X-movement
Mouse: 00 No Y-movement
Mouse: 00 No Z-movement
</code>
After downloaded/installed the Microsoft's Intellimouse drivers with support for the 4th and 5th buttons, the following sequence was found:
<code>
... (starts same as before) ...
Host: F3 Set Sample Rate : Attempt to Enter Microsoft
Mouse: FA Acknowledge : Scrolling Mouse mode.
Host: C8 decimal 200 :
Mouse: FA Acknowledge :
Host: F3 Set Sample Rate :
Mouse: FA Acknowledge :
Host: 64 decimal 100 :
Mouse: FA Acknowledge :
Host: F3 Set Sample Rate :
Mouse: FA Acknowledge :
Host: 50 decimal 80 :
Mouse: FA Acknowledge :
Host: F2 Read Device Type :
Mouse: FA Acknowledge :
Mouse: 03 Mouse ID : Response 03 if microsoft scrolling mouse.
Host: F3 Set Sample Rate : Attempt to Enter Microsoft 5-button
Mouse: FA Acknowledge : Scrolling Mouse mode.
Host: C8 decimal 200 :
Mouse: FA Acknowledge :
Host: F3 Set Sample Rate :
Mouse: FA Acknowledge :
Host: C8 decimal 200 :
Mouse: FA Acknowledge :
Host: F3 Set Sample Rate :
Mouse: FA Acknowledge :
Host: 50 decimal 80 :
Mouse: FA Acknowledge :
Host: F2 Read Device Type :
Mouse: FA Acknowledge :
Mouse: 04 Mouse ID : Response 04 if 5-button scrolling mouse.
... rest of initialization same as before ...
</code>
Credits for this dump goes to Adam Chapweske, also more info can be found [http://www.computer-engineering.org/ps2mouse/ on his site].
===PC Serial Mouse===
Line 455 ⟶ 612:
* [http://www.computer-engineering.org www.Computer-Engineering.org]
* [http://www.mcamafia.de/pdf/ibm_hitrc07.pdf IBM's Keyboard and Auxiliary Device (mouse) Controller documentation]
* [http://www.computer-engineering.org/ps2mouse/ The PS/2 Mouse Interface]
[[Category:Human Interface Device]]
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