lkml.org 
[lkml]   [2000]   [Nov]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectIDE-driver not generalized enough ?
Hi! Quick question: is it possible to write an IDE driver for a controller
that is not mappable using outp and those memory-mapped thingys ?

I see all the nice overrideables in struct hwif_s but the main code still
uses OUT_BYTE which is hardcoded to an outb_p.. non-overrideable. Same
thing with ide_input/output_bytes, they do direct in/out accesses also
without consulting any hwif specific routine.

So what do I do if my controller does not have a simple memory-mapping for
each IDE-register into the memory ? Do I have to clutter ide.h and ide.c
with #ifdef's or is there any cleaner abstraction on the way (something
like adding a hwif field to perform the OUT/IN-byte stuff, and
ide_xxput_bytes) ?

(I have a solution working by replacing OUT_BYTE and ide_xxput_bytes, but
wanted to make it without having to patch the "official" ide.c/ide.h)

Regards,
Bjorn


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 12:47    [W:0.049 / U:2.060 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site