paulm@ccicpg.UUCP (Paul Moreau) (10/30/90)
I am currently writing a driver for my scsi cartridge tape drive.
I have it working doing tar's and other stuff as Device ID# 0 but
I want it to work with my hard disk pluged in also. I have written
a lot of disk code in assembler based on some code from an Abacas
book but I can't get it to talk to anything but ID 0. Is the BMS100
capable of talking to other IDs (preferably #6) ?
If and when I get this working I'll release my code here as PD.
Any help would be apreciated.
Here is a little code segment:
scsi_read:
movea.l #$ffff8604,a0 ; WDC
st $043e ; flock
[....] ; move the buffer address in 3 DMA addrs
move.w #$88,2(a0) ;
lea CDB,a2 ; get CDB pointer
clr.l d0 ;
move.w #5,d1 ; CDB size
10$: move.b (a2)+,d0 ; get CDB byte
swap d0 ; put it in upper 16 bits
move.w #$8a,d0 ; get ?
move.l d0,(a0) ; write it to WDC
brs short_wait ; short wait for intr
dbf d1,10$ ; loop for 6 CDB bytes
......
The code was from memory so probably is not very correct but hopefully
it will give you some idea on where I need to work on this for the ID.
Well, Thanx in advance, Paul Moreau.
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.==========================================================.
| ### ####### ### | N O R T H | /==============\ |
| ### ### ### | A M E R I C A |< An STC Company >|
| ### ####### ####### | (was CCI) | \==============/ |
|----------------------------------------------------------|
| UUCP: ..uunet!ccicpg!dl2!paulm | Paul L. Moreau |
| or ..uunet!ccicpg!dl1!paulm | Sr. Diag Software Eng. |
| or ..uunet!ccicpg!paulm | Irvine, California |
`=========================================================='jvt@its.bt.co.uk (John Trickey) (11/01/90)
In article <786@ccicpg.UUCP> paulm@ccicpg.UUCP (Paul Moreau) writes: > > I am currently writing a driver for my scsi cartridge tape drive. > I have it working doing tar's and other stuff as Device ID# 0 but > I want it to work with my hard disk pluged in also. I have written > a lot of disk code in assembler based on some code from an Abacas > book but I can't get it to talk to anything but ID 0. Is the BMS100 > capable of talking to other IDs (preferably #6) ? > > If and when I get this working I'll release my code here as PD. > Any help would be apreciated. Sorry I can't answer your question. I look forward to you releasing the code as I am very interested. Can I offer this observation. The ICD board uses SCSI ID6 for the clock chip and & believe 7 is used by Atari's laser printer. If you possibly use another ID or can you make the code configurable at install time. Regards - John -- John Trickey <jvt@its.bt.co.uk> || ..!mcsun!ukc!axion!its G4REV @ GB7SUT Voice: +44 21 333 3369 #include <std/disclaimer>