Date: Tue, 10 Aug 1999 01:02:23 +0900 From: MIHIRA Sanpei Yoshiro <sanpei@sanpei.org> To: mobile@freebsd.org, iwasaki@jp.FreeBSD.org Subject: Re: [APM] kernel panic with apm command(Sotec WinBookPro). Message-ID: <199908091602.BAA01757@lavender.yy.cs.keio.ac.jp> In-Reply-To: Your message of "Mon, 09 Aug 1999 01:46:12 %2B0900" References: <199908081642.BAA01817@tasogare.imasy.or.jp>
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I applied Iwasaki-san's patch to my sys/i386/apm/apm.c.
And I execute apm, kernel does not panic. But I think
/usr/sbin/apm needs some additional code(?).
% apm
APM version: 1.0
APM Managment: Enabled
AC Line status: on-line
Battery status: charging
Remaining battery life: unknown
Remaining battery time: unknown
Number of batteries: unknown
apm: Get resume timer: Invalid argument <------------
%
----------
>> [probed message]
>> apm0: <APM BIOS> on motherboard
>> apm: APM BIOS version 0101
>> apm: Code16 0xc00f0000, Data 0xc00f0000
>> apm: Code entry 0x0000b321, Idling CPU disabled, Management disabled
>> apm: CS_limit=0xffff, DS_limit=0xffff
>> apm: found APM BIOS v1.1, connected at v1.0
>
>Odd. Why it connected at v1.0???
I added some debug code.
I think my NOTE-PC has buggy BIOS. If it call ``APM_DRVVERSION'',
BIOS return 0x530e of APM driver version, not 0x010x(1.0?). 0x530e
is eax value for APM_DRVVERSION...... BIOS of MY NOTE-PC does not
recognize DRVVERSION CALL.........
[probed message]
apm0: <APM BIOS> on motherboard
drv_version: 101 <-- debug message
DRIVER VERSION 1: 530e <-- debug message
drv_version: 100 <-- debug message
apm: found APM BIOS v1.1, connected at v1.0
debug code
--- apm.c.org Tue Aug 10 00:37:57 1999
+++ apm.c Tue Aug 10 00:49:39 1999
@@ -212,8 +212,11 @@
sc->bios.r.ecx = version;
sc->bios.r.edx = 0;
- if (apm_bioscall() == 0 && sc->bios.r.eax == version)
+ if (apm_bioscall() == 0 && sc->bios.r.eax == version) {
+ printf("DRIVER VERSION 0: %x\n", sc->bios.r.eax);
return (0);
+ }
+ printf("DRIVER VERSION 1: %x\n", sc->bios.r.eax);
return (1);
}
@@ -976,9 +979,12 @@
* 1.02 driver resulted in a 1.02 connection.
*/
drv_version = apm_version > 0x102 ? 0x102 : apm_version;
- for (; drv_version > 0x100; drv_version--)
+ for (; drv_version > 0x100; drv_version--) {
+ printf("drv_version: %4x\n", drv_version);
if (apm_driver_version(drv_version) == 0)
break;
+ }
+ printf("drv_version: %4x\n", drv_version);
sc->minorversion = ((drv_version & 0x00f0) >> 4) * 10 +
((drv_version & 0x000f) >> 0);
sc->majorversion = ((drv_version & 0xf000) >> 12) * 10 +
@@ -1176,7 +1182,7 @@
sc->bios.r.edi = args->edi;
if ((ret = apm_bioscall())) {
if (ret == -1) {
- error = ENOSYS;
+ error = EINVAL;
} else {
sc->bios.r.eax &= 0xff;
}
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