43 lines
775 B
C
43 lines
775 B
C
// cmos.c
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// Author: Josh Holtrop
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// Created: 02/26/04
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// Implements various CMOS function calls
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#include "hos_defines.h"
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#include "sys/cmos.h"
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#include "sys/io.h"
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//Returns the cmos type of floppy disk drive 0 (0 = not present)
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unsigned char cmos_getfd0()
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{
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outportb(0x70, 0x10);
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return (inportb(0x71) >> 4);
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}
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//Returns the cmos type of floppy disk drive 1 (0 = not present)
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unsigned char cmos_getfd1()
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{
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outportb(0x70, 0x10);
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return (inportb(0x71) & 0x0F);
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}
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//Returns the cmos type of hard disk drive 0 (0 = not present)
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unsigned char cmos_gethd0()
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{
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outportb(0x70, 0x12);
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return (inportb(0x71) >> 4);
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}
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//Returns the cmos type of hard disk drive 1 (0 = not present)
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unsigned char cmos_gethd1()
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{
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outportb(0x70, 0x12);
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return (inportb(0x71) & 0x0F);
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}
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