static int
get_typematic(keyboard_t *kbd)
{
#ifdef __i386__
/*
* Only some systems allow us to retrieve the keyboard repeat
* rate previously set via the BIOS...
*/
struct vm86frame vmf;
u_int32_t p;
bzero(&vmf, sizeof(vmf));
vmf.vmf_ax = 0xc000;
vm86_intcall(0x15, &vmf);
if ((vmf.vmf_eflags & PSL_C) || vmf.vmf_ah)
return ENODEV;
p = BIOS_PADDRTOVADDR(((u_int32_t)vmf.vmf_es << 4) + vmf.vmf_bx);
if ((readb(p + 6) & 0x40) == 0) /* int 16, function 0x09 supported? */
return ENODEV;
vmf.vmf_ax = 0x0900;
vm86_intcall(0x16, &vmf);
if ((vmf.vmf_al & 0x08) == 0) /* int 16, function 0x0306 supported? */
return ENODEV;
vmf.vmf_ax = 0x0306;
vm86_intcall(0x16, &vmf);
kbd->kb_delay1 = typematic_delay(vmf.vmf_bh << 5);
kbd->kb_delay2 = typematic_rate(vmf.vmf_bl);
return 0;
#else
return ENODEV;
#endif /* __i386__ */
}
/* Functions */
static void
bios_mcabus_present(void * dummy)
{
struct vm86frame vmf;
struct sys_config * scp;
vm_offset_t paddr;
bzero(&vmf, sizeof(struct vm86frame));
vmf.vmf_ah = 0xc0;
if (vm86_intcall(0x15, &vmf)) {
if (bootverbose) {
printf("BIOS SDT: INT call failed.\n");
}
return;
}
if ((vmf.vmf_ah != 0) && (vmf.vmf_flags & 0x01)) {
if (bootverbose) {
printf("BIOS SDT: Not supported. Not PS/2?\n");
printf("BIOS SDT: AH 0x%02x, Flags 0x%04x\n",
vmf.vmf_ah, vmf.vmf_flags);
}
return;
}
paddr = vmf.vmf_es;
paddr = (paddr << 4) + vmf.vmf_bx;
scp = (struct sys_config *)BIOS_PADDRTOVADDR(paddr);
if (bootverbose) {
printf("BIOS SDT: model 0x%02x, submodel 0x%02x, bios_rev 0x%02x\n",
scp->model, scp->submodel, scp->bios_rev);
printf("BIOS SDT: features 0x%b\n", scp->feature,
"\20"
"\01MCA+ISA"
"\02MCA"
"\03EBDA"
"\04WAITEV"
"\05KBDINT"
"\06RTC"
"\07IC2"
"\08DMA3"
"\n");
}
MCA_system = ((scp->feature & FEATURE_MCABUS) ? 1 : 0);
if (MCA_system)
printf("MicroChannel Architecture System detected.\n");
return;
}
