FreeLists / openbeos / [openbeos] Re: OT; IDE driver source

["Philippe Houdoin" <philippe.houdoin@xxxxxxx>]

> I realize this isn't strictly related to OpenBeOS, but I'm trying to 
> get
> R5 up and running so I can contribute, so it sort of is. Basically 
> the
> only missing piece for me to run BeOS is an IDE driver that works 
> with
> my Si3112 Serial ATA controller. This controller works fine with
> FreeBSD's IDE driver and the only thing specific to the controller in
> that driver is the Vendor/Device IDs.

Patching the Thomas's IDE replacement driver available on BeBits should 
do the 
trick here.
Using our new brand (but beta ;-) ) OBOS DiskProbe tool; open his 
genericpci binary, and 
looks after "find_devices" symbol start adress (0x1cd8, should be below 
because AFAIK 
Thomas didn't change this part so I guess it's still a big switch 
(vendor_id << 16 | device_id) that detect (or not) a supported 
controler. Let's see...

Yeah, for example at genericpci 0x1d31, you will see "68 4d 5a 10", 
which stand for 
Promise PDC20268 IDE controlers full PCI ID (vendor = 0x105a, device = 
0x4d68). 
Several "xx 4d 5a10" promise device IDs are near there, too.

HighPoint controlers family ID is at offset 0x1d82 (04 00 03 11 = 
vendor 0x1103, device (family) = 0x0004).
Try to borrow one of this IDs (asusme it's compatible) and install your 
Si3112 PCI IDs...

Dont forget to make a copy of genericpci file before, it's a risky 
business.
;-)

> The "Replacement IDE Driver" available on BeBits does not appear to 
> be
> open source. I tried e-mailing the author and received no response. 
> Is
> source for this available anywhere?

Some Be's R5 reverse engineering was involved in this driver 
development, hence the final close source stance.
 
> There's also this: http://sourceforge.net/projects/beos-idedriver
> 
> But it appears to be pretty stale. 

Indeed, it was the project I started long ago just weeks before Thomas 
joined and them make me blind for hours seeing his coding skills and 
progress speed. :-)
Thomas eventually finished this project all on his own because I was 
clearly of no help, and as we encounter this little "reverse 
engineering" issue on the path, the result became his closed source IDE 
replacement driver available at BeBits.

> Does anybody know if it ever worked,

The version available on beos-idedriver is a really early version of 
Thomas's final driver version.
I'm not even sure he don't rewrote major part of the code!
Anyway, at this time, I got some positive report thru BeShare, so maybe 
even this obsolete and incomple version may works...

- Philippe

--
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