[OpenBIOS] Current States of LinuxBios on SiS 630

[kmliu]

Dear Ron:

I attached the 8042(keyboard controller) and keyboard initialization code to
you.
I have tested the steps with H/W ICE then keyboard can work properly.
Because it is DOS assembler style so, you need to transfer to Linux
assembler style.

PS. Your original code have many bugs in 8042 and keyboard initialization.

Thanks&Best Regards,
K.M. Liu
          - - - - - - - - - - SiS Corp. - - - - - - - - - -
System Software                                         Email:
kmliu at sis.com.tw
Software Development Division                 Tel: (03) 577-4922 ext 6230
Silicon Integrated Systems Corporation      Fax: (03) 577-8774

No.16, Creation RD.1, Science-based Industrial Park
Hsin Chu, Taiwan, R.O.C.


----- Original Message -----
±H¥óªÌ: Ronald G Minnich <rminnich at lanl.gov>
¦¬¥óªÌ: kmliu <kmliu at sis.com.tw>
°Æ¥»: <openbios at elvis.informatik.uni-freiburg.de>; Joe Wang
<joewang at sis.com.tw>; <freebios-devel at sourceforge.net>
¶Ç°e¤é´Á: 2000¦~6¤ë1¤é AM 11:08
¥D¦®: Re: [OpenBIOS] Current States of LinuxBios on SiS 630


> I think what I really want from the linuxbios point of view is the
> absolute minimum done in linuxbios to make the keyboard work in
> linux. There's no point in initializing the keyboard twice.
>
> Anyway, the latest snap is now on the web page. Current status is we're
> mounting root, and the fbdev comes up and drives the display. I'm going to
> put some pictures on the web page this or next week.
>
> ron
>
-------------- next part --------------
8042(keyboard controller) and keyboard initialization procedure

mov al,0xaa      ;; 8042 self test
call write_64
call real_60
cmp al,0x55
jne fail

mov al,0x60      ;; Enable keyboard interface
call write_64    ;; Enable IRQ1
mov al,0x61
call write_60

mov al,0xff      ;; Reset keyboard and self test
call write_60
call read_60
cmp al,0xfa
jne fail
call read_60
cmp al,0xaa
jne fail

----------------------------------------------------------------------

write_64:
   out 0x64,al
@@:
   in al,0x64
   test al,0x02
   jnz @B
   ret

read_60:
@@:
   in al,0x64
   test al,0x01
   jz @B
   in al,0x60
   ret

write_60:
   out 0x60,al
   in  al,0x64
   test al,0x02
   jnz @B
   ret