Date: Thu, 19 Oct 2006 14:07:18 -0700 From: "Kevin Oberman" <oberman@es.net> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-mobile@freebsd.org Subject: Re: No psm with if_ath on current Message-ID: <20061019210718.687F145058@ptavv.es.net> In-Reply-To: Your message of "Thu, 19 Oct 2006 16:55:51 EDT." <200610191655.52409.jhb@freebsd.org>
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--==_Exmh_1161292038_34591P Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > From: John Baldwin <jhb@freebsd.org> > Date: Thu, 19 Oct 2006 16:55:51 -0400 > > On Thursday 19 October 2006 15:19, Kevin Oberman wrote: > > > From: John Baldwin <jhb@freebsd.org> > > > Date: Thu, 19 Oct 2006 13:12:43 -0400 > > > > > > On Thursday 19 October 2006 12:50, Kevin Oberman wrote: > > > > 527,533c548 > > > > < psmcpnp0: <PS/2 mouse port> irq 12 on acpi0 > > > > < psm0: current command byte:0047 > > > > < psm0: <PS/2 Mouse> flags 0x2000 irq 12 on atkbdc0 > > > > < psm0: [GIANT-LOCKED] > > > > < psm0: model Generic PS/2 mouse, device ID 0-00, 2 buttons > > > > < psm0: config:00002000, flags:00000008, packet size:3 > > > > < psm0: syncmask:c0, syncbits:00 > > > > --- > > > > > acpi_ibm0: <IBM ThinkPad ACPI Extras> irq 12 on acpi0 > > > > 549d563 > > > > < acpi_ibm0: <IBM ThinkPad ACPI Extras> on acpi0 > > > > > > This is odd. Do you have your ASL handy, and can you show the > > > 'devinfo -v' line for acpi_ibm0 for the 2 cases (w/ if_ath and w/o)? > > > > The ASL is available at: > > <http://home.comcast.net/~ykoberman/FreeBSD/T43.asl>; > > > > if_ath loaded before boot. No psm found. > > acpi_ibm0 pnpinfo _HID=IBM0057 _UID=0 at handle=\_SB_.PCI0.LPC_.MOU_ > > > > if_ath loaded after boot. psm available. > > acpi_ibm0 pnpinfo _HID=IBM0068 _UID=0 at > handle=\_SB_.PCI0.LPC_.EC__.HKEY > > > > If I understand this (and I probably don't) this is really weird. > > Yeah, your mouse normally has an ACPI ID of IBM3870, not 0057. That's really > odd. > > Device (MOU) > { > Name (_HID, EisaId ("IBM3780")) > Name (_CID, 0x130FD041) > Name (_CRS, ResourceTemplate () > { > IRQNoFlags () > {12} > }) > Method (MHID, 0, NotSerialized) > { > If (\_SB.PCI0.LPC.PADD) > { > Store (0x80374D24, _HID) > } > Else > { > Store (0x57004D24, _HID) > } > } > } > > Oh, wait, the MHID thing changes it. Hmm, PADD is some byte (bit?) in > memory and it's getting changed for some reason. You can sabotage > your ASL and use a custom DSDT that always forces it to IBM3780. You > can also maybe hack acpi_ibm to not attach to a device that matches > the PS/2 mouse device. Or give acpi_ibm a lower priority than the psm > driver. You can do this it looks like by just changing > acpi_ibm_probe() to return BUS_PROBE_DEFAULT instead of 0 on success. Ah. This all makes sense (and is still weird), but why does having if_ath loaded trigger the problem? I may be missing something fundamental, but I don't see the link. Does probing ath cause the probes to re-order or something? I'll take a look at hacking acpi_ibm in a bit. I get uncomfortable about hacking the DSDT, although I have done it in the past for broken cases (like my old K6-3 system). Thanks! -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634 Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751 --==_Exmh_1161292038_34591P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) Comment: Exmh version 2.5 06/03/2002 iD8DBQFFN+kGkn3rs5h7N1ERAj1kAJ4zedxXk9p/eXgCfHGjBXN9uhf0cQCfX/hL mo1ockdKvFkyfMrlxOeUA2E= =mkel -----END PGP SIGNATURE----- --==_Exmh_1161292038_34591P--
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