[9fans] problems with rio + cyber9385

[9fans] problems with rio + cyber9385

[Dan]

I'm attempting to install R4 of plan9 on my Fujitsu Lifebook
280DX, but I'm running into problems when rio tries to start.

The Lifebook has a version of the Cyber938x chipset which was
not detected by default (ZE7.01L).  I added a line to vgadb
that makes it recognize that I have a 938x, however it now
complains that it's an 'unknown Cyber revision 0x3A'.

Is there an easy method of fixing this?  It sounds like the
driver for the 938x chipset just needs to be convinced that
the 0x3A revision is OK, but I'm not familiar enough with
plan9 to know how to go about doing that.

For the sake of completeness, I've attached relevent bits
from vgainfo.txt from before and after I added the line to
vgadb.

BEFORE:

0xC0000 55 AA 60 EB 63 37 34 30 30 30 37 3A 82 2A 2A 52  U.`.c740007:.**R
0xC0010 45 53 45 52 56 45 44 20 50 00 46 4F 52 20 49 42  ESERVED P.FOR IB
0xC0020 4D 20 43 4F 4D 50 41 54 49 42 49 4C 49 54 59 20  M COMPATIBILITY
0xC0030 2A 2A 05 8C 00 00 90 10 30 33 2F 31 39 2F 39 38  **......03/19/98
0xC0040 00 00 20 5A 45 37 2E 30 31 4C 20 20 20 20 20 20  .. ZE7.01L
0xC0050 50 43 49 52 23 10 60 96 00 00 18 00 00 00 00 03  PCIR#.`.........
0xC0060 60 00 00 00 00 80 00 00 E9 A5 5D 07 43 6F 70 79  `.........].Copy
0xC0070 72 69 67 68 74 20 31 39 39 34 20 54 52 49 44 45  right 1994 TRIDE
0xC0080 4E 54 20 4D 49 43 52 4F 53 59 53 54 45 4D 53 20  NT MICROSYSTEMS
0xC0090 49 4E 43 2E 0D 0A 00 07 07 43 6F 70 79 72 69 67  INC......Copyrig
0xC00A0 68 74 20 31 39 39 30 20 50 68 6F 65 6E 69 78 20  ht 1990 Phoenix
0xC00B0 54 65 63 68 6E 6F 6C 6F 67 69 65 73 2E 00 01 00  Technologies....
0xC00C0 00 0E 20 32 35 36 00 0E 20 35 31 32 00 0E 20 37  .. 256.. 512.. 7
0xC00D0 36 38 00 0E 31 30 32 34 00 0E 32 30 34 38 00 07  68..1024..2048..
0xC00E0 4B 20 20 00 0E 56 47 41 00 0E 45 47 41 00 0E 43  K  ..VGA..EGA..C
0xC00F0 47 41 00 0E 4D 44 41 00 07 20 4D 4F 44 45 0D 0A  GA..MDA.. MODE..

AFTER:

main->snarf
vga->snarf
cyber938x->snarf
vga->attr: 0xC0000-0xFFFFF=ZE7.01L
vga->dump
vga misc             67
vga feature          01
vga sequencer        03 00 03 00 02
vga crt              5F 4F 50 82 55 81 BF 1F - 00 4F 0D 0E 00 00 06 90
                     9C 8E 8F 28 1F 96 B9 A3 - FF
vga graphics         00 00 00 00 00 10 0E 00 - FF
vga attribute        00 01 02 03 04 05 14 07 - 38 39 3A 3B 3C 3D 3E 3F
                     0C 00 0F 08 00
vga virtual         0 0
vga panning         off
vga vm a b            4194304        0
vga vmz               2097152
vga apz                     0
vga linear                  1
cyber938x->dump
cyber938x Seq08      93 3A 00 D3 B8 00 00 B1 - 00 00 00 00 00 00 00 00
                     00 00 00 00 00 00 00 00
cyber938x Old Seq0C  B8 28 E8
cyber938x pcr        00
cyber938x Crt19      4A 00 00 00 00 00 47
cyber938x Crt20      30 CF 07 0D 80 07 34 00 - 0C 8C 14 00 00 00 00 5F
                     00 00 00 00 00 00 01 00 - 10 00 00 21 00 00 00 00
                     FF 07 FF 07 FF 0F 7F 7F - FF DF FF 00 FF FF FF 00
                     00 FF 02 C0 03 00 00 FF - 00 00 00 00 00 00 00 00
cyber938x CrtCF      03
cyber938x Gr09       00 00 00 00 00 00 14
cyber938x Gr10       00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
                     45 94 14 8C CF 00 00 11 - 40 00 01 00 00 1F 00 A0
                     81 00 00 30 00 00 00 00 - 00 00 00 00 00 00 00 00
                     02 00 34 28 0B 3F 00 00 - 11 00 00 00 00 00 00 00
                     29 99 33 23 00 00 00 00 - 00 00 01 19 03 0F 44 44
cyber938x mclk       00 00
cyber938x vclk       00 00          57272720

cyber938x lcd size        800      600

vmf 0 vmdf 40000000 vf1 0 vbw 0
cyber938x->options
vga->init
cyber938x->init
sequencer->enter on
sequencer->leave on
unknown Cyber revision 0x3A


Thanks,

--
Dan