Date: Thu, 06 May 1999 19:16:51 -0600 From: Warner Losh <imp@harmony.village.org> To: Doug Rabson <dfr@nlsystems.com> Cc: new-bus-arch@bostonradio.org, mobile@freebsd.org Subject: Re: Pccard rewrite, patch #1 Message-ID: <199905070116.TAA20728@harmony.village.org> In-Reply-To: Your message of "Thu, 06 May 1999 21:37:16 BST." <Pine.BSF.4.05.9905062135550.411-100000@herring.nlsystems.com> References: <Pine.BSF.4.05.9905062135550.411-100000@herring.nlsystems.com>
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In message <Pine.BSF.4.05.9905062135550.411-100000@herring.nlsystems.com> Doug Rabson writes: : This should be doable - the newconfig folks have code to talk to the PCI : BIOS. In the long term, ACPI will also provide this kind of access without : having to call any bios functions. ACPI looks very promising. Looks like it attempts to move the management of many things into a p-code like machine. The machine appears to be relatively simple. I'm not aware of any good (or bad for that matter) AML implementations that are freely available. If you read the spec carefully, you'll note that they leave the door open for ACPI impelementations on non-x86 architectures. The newconfig code has support for cardbus bridges. I've not looked closely at what they offer, however. I know that on my laptop it makes a difference between having PnP OS set to Y and N. With it set to 'Y,' almost nothing is configured (which is correct, per the pnp spec) and it is hard to get things working. When it is set to 'N,' then it appears to assign all the chips on the PCI bus to the int-a irq 9. But then again, PCI interrupt routing has always been a confusing thing to me... Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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