diff options
| author | jkim <jkim@FreeBSD.org> | 2010-11-11 19:20:33 +0000 |
|---|---|---|
| committer | jkim <jkim@FreeBSD.org> | 2010-11-11 19:20:33 +0000 |
| commit | 98098c3edad41d04379bb95076ac6581d99b8a64 (patch) | |
| tree | caf4057ec3be654a33e841cf36a7fbbb9c555d95 /sys/i386/bios | |
| parent | 2c7257916febea8b75c0dd26b35c761f32102153 (diff) | |
| download | FreeBSD-src-98098c3edad41d04379bb95076ac6581d99b8a64.zip FreeBSD-src-98098c3edad41d04379bb95076ac6581d99b8a64.tar.gz | |
Add compat shim for apm(4) to translate APM BIOS function numbers from i386
to PC98-specific ones. Any binaries using apm ioctl(4) commands but built
for i386 should also work on PC98 now.
Reviewed by: imp, nyan
Diffstat (limited to 'sys/i386/bios')
| -rw-r--r-- | sys/i386/bios/apm.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/sys/i386/bios/apm.c b/sys/i386/bios/apm.c index e015cd0..f33bafd 100644 --- a/sys/i386/bios/apm.c +++ b/sys/i386/bios/apm.c @@ -1389,6 +1389,23 @@ apmioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td return (EPERM); /* XXX compatibility with the old interface */ args = (struct apm_bios_arg *)addr; +#ifdef PC98 + if (((args->eax >> 8) & 0xff) == 0x53) { + sc->bios.r.eax = args->eax & ~0xffff; + sc->bios.r.eax |= APM_BIOS << 8; + switch (args->eax & 0xff) { + case 0x0a: + sc->bios.r.eax |= APM_GETPWSTATUS; + break; + case 0x0e: + sc->bios.r.eax |= APM_DRVVERSION; + break; + default: + sc->bios.r.eax |= args->eax & 0xff; + break; + } + } else +#endif sc->bios.r.eax = args->eax; sc->bios.r.ebx = args->ebx; sc->bios.r.ecx = args->ecx; |
