Bit8u keyb_io_read(ioport_t port)
{
Bit8u r = 0;
switch (port) {
case 0x60:
r = read_port60();
/* We ought to untrigger IRQ1, in case DOS was reading port60h with interrupts off,
* but currently the PIC code doesn't support this. */
#if 0
if (!port60_ready)
pic_untrigger(PIC_IRQ1);
#endif
k_printf("8042: read port 0x60 read=0x%02x\n",r);
break;
case 0x61:
/* Handle only PC-Speaker right now */
r = spkr_io_read(port);
break;
case 0x64:
r= 0x1c | (port60_ready ? 0x01 : 0x00);
k_printf("8042: read port 0x64 status check=0x%02x, port60_ready=%d\n",
r, port60_ready);
}
return r;
}
Bit8u rtc_read(Bit8u reg)
{
Bit8u ret = GET_CMOS(reg);
switch (reg) {
case CMOS_SEC:
case CMOS_SECALRM:
case CMOS_MIN:
case CMOS_MINALRM:
case CMOS_DOW:
case CMOS_DOM:
case CMOS_MONTH:
case CMOS_YEAR:
case CMOS_CENTURY:
/* Note - the inline function BCD() in cmos.h will check bit 2 of
* status reg B for proper output format */
ret = BCD(ret);
break;
case CMOS_HOUR: /* RTC hour...bit 1 of 0xb set=24 hour mode, clear 12 hour */
case CMOS_HOURALRM:
if (!(GET_CMOS(CMOS_STATUSB) & 2)) { /* 12-hour mode */
if (ret == 0)
ret = 12;
else if (ret > 12)
ret -= 12;
}
ret = BCD(ret);
break;
case CMOS_STATUSC:
if (debug_level('h') > 8)
h_printf("RTC: Read C=%hhx\n", ret);
SET_CMOS(CMOS_STATUSC, 0);
pic_untrigger(PIC_IRQ8);
rtc_run();
break;
}
return ret;
}
