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81 lines
2.5 KiB
Plaintext
81 lines
2.5 KiB
Plaintext
Intel 8042 port driver
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This directory contains a driver for Intels 8042 and compatible controllers.
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It is based on the information in the DDK documentation on MSDN. It is intended
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to be compatible with keyboard and mouse drivers written for Windows. It is
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not based on the i8042prt example driver that's included with the DDK.
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The directory contains these files:
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createclose.c: open/close devices functionnality
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i8042prt.c: Main controller functionality, things shared by keyboards and mice
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keyboard.c: keyboard functionality: detection, interrupt handling
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misc.c: misc things, mostly related to Irp passing
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mouse.c: mouse functionality: detection, interrupt handling, packet parsing for
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standard ps2 and microsoft mice
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pnp.c: Plug&Play functionnality
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ps2pp.c: logitech ps2++ mouse packat parsing (basic)
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readwrite.c: read/write to the i8042 controller
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registry.c: registry reading
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setup.c: add keyboard support during the 1st stage setup
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i8042prt.rc: obvious
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Some parts of the driver make little sense. This is because it implements
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an interface that has evolved over a long time, and because the ps/2
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'standard' is really awful.
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Things to add:
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- Better AT (before ps2) keyboard handling
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- SiS keyboard controller detection
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- Mouse identification
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- General robustness: reset mouse if things go wrong
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- Handling all registry settings
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- ACPI
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Things not to add:
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- Other mouse protocols, touchpad handling etc. : Write a filter driver instead
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- Keyboard lights handling: Should be in win32k
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- Keyboard scancode translation: Should be in win32k
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Things requiring work elsewhere:
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- Debugger interface (TAB + key):
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Currently this interface wants translated keycodes, which are not
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implemented by this driver. As it just uses a giant switch with
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hardcoded cases, this should not be hard to fix.
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- Class drivers:
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The class drivers should be able to handle reads for more than one packet
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at a time (kbdclass should, mouclass does not). Win32k should send such
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requests.
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I put a lot of work in making it work like Microsofts driver does, so third party drivers can work. Please keep it that way.
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Links:
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Here's a link describing most of the registry settings:
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http://www.microsoft.com/resources/documentation/Windows/2000/server/reskit/en-us/Default.asp?url=/resources/documentation/Windows/2000/server/reskit/en-us/regentry/31493.asp
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PS/2 protocol documentation:
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http://www.win.tue.nl/~aeb/linux/kbd/scancodes.html
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It also contains a link to a description of the ps2++ protocol, which has
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since disappeared. Archive.org still has it.
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