Date: Tue, 02 Jun 1998 18:03:35 -0700 From: Mike Smith <mike@smith.net.au> To: mobile@FreeBSD.ORG Subject: New APM connect technique Message-ID: <199806030103.SAA01602@dingo.cdrom.com>
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If you're running -current on your system(s), I'd like to hear how this
works for you. You will need to add
options "VM86"
to your kernel config. This was tested with APM 1.1 and APM 1.2
systems; I don't have an APM 1.0 system or a copy of the 1.0 spec to
verify this code against.
Note also that the commented out section in apm_attach which sets the cs
and ds segment limits to 0xffff is probably cured by correctly
calculating the segment limits as the returned value less one. (This
is not detailed in revisions of the spec before 1.2.) At least the
Award APM 1.2 BIOS returns '0' for the CS32 and CS16 selectors.
------- Forwarded Message
From: Michael Smith <msmith@FreeBSD.ORG>
Date: Tue, 2 Jun 1998 18:59:44 -0700 (PDT)
Message-Id: <199806030159.SAA18407@freefall.freebsd.org>
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org, cvs-sys@FreeBSD.org
Subject: cvs commit: src/sys/i386/apm apm.c apm_setup.h apm_setup.s
src/sys/i386/i386 locore.s
msmith 1998/06/02 18:59:43 PDT
Modified files:
sys/i386/apm apm.c apm_setup.h apm_setup.s
sys/i386/i386 locore.s
Log:
If vm86 services are available, use these to perform the APM BIOS
probe and intialisation. This will ultimately remove the grubby (but
functional) hack that copies a real-mode function into low memory
early in locore.s.
Revision Changes Path
1.71 +76 -11 src/sys/i386/apm/apm.c
1.9 +3 -2 src/sys/i386/apm/apm_setup.h
1.13 +8 -4 src/sys/i386/apm/apm_setup.s
1.108 +3 -1 src/sys/i386/i386/locore.s
------- End of Forwarded Message
--
\\ Sometimes you're ahead, \\ Mike Smith
\\ sometimes you're behind. \\ mike@smith.net.au
\\ The race is long, and in the \\ msmith@freebsd.org
\\ end it's only with yourself. \\ msmith@cdrom.com
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