Re: [RFC][DOC] writing IDE driver guidelines

From: Jeff Garzik
Date: Sat May 15 2004 - 17:24:24 EST

Bartlomiej Zolnierkiewicz wrote:
On Saturday 15 of May 2004 19:34, Jeff Garzik wrote:
On Sat, May 15, 2004 at 07:23:50PM +0200, Bartlomiej Zolnierkiewicz wrote:
- host drivers should request/release IO resource
themelves and set hwif->mmio to 2

Don't you mean, hwif->mmio==2 for MMIO hardware?

It is was historically for MMIO, now it means that driver
handles IO resource itself (per comment in <linux/ide.h>).

Maybe then create a constant HOST_IO_RESOURCES (value==2) to make that more obvious?

- define ide_default_irq(), ide_init_default_irq()
and ide_default_io_base() to (0)

Maybe provide generic definitions, so that new arches don't even
have to care about this?

Please explain.

Your document appears to imply that each new arch should define the above three symbols.

My suggestion is to devise a method by which new arches don't have to care about those symbols at all, unless required to do so by the underlying hardware.


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