28 lines
816 B
C
28 lines
816 B
C
/* IBM device driver definitions Author: Kees J. Bot
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* 7 Dec 1995
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*/
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#include <ibm/partition.h>
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_PROTOTYPE( void partition, (struct driver *dr, int device, int style) );
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/* BIOS parameter table layout. */
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#define bp_cylinders(t) (* (u16_t *) (&(t)[0]))
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#define bp_heads(t) (* (u8_t *) (&(t)[2]))
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#define bp_reduced_wr(t) (* (u16_t *) (&(t)[3]))
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#define bp_precomp(t) (* (u16_t *) (&(t)[5]))
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#define bp_max_ecc(t) (* (u8_t *) (&(t)[7]))
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#define bp_ctlbyte(t) (* (u8_t *) (&(t)[8]))
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#define bp_landingzone(t) (* (u16_t *) (&(t)[12]))
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#define bp_sectors(t) (* (u8_t *) (&(t)[14]))
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/* Miscellaneous. */
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#define DEV_PER_DRIVE (1 + NR_PARTITIONS)
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#define MINOR_t0 64
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#define MINOR_r0 120
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#define MINOR_d0p0s0 128
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#define MINOR_fd0p0 (28<<2)
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#define P_FLOPPY 0
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#define P_PRIMARY 1
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#define P_SUB 2
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