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Last change
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Importazione sorgenti libro
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File size:
827 bytes
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| 1 | /* IBM device driver definitions Author: Kees J. Bot
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| 2 | * 7 Dec 1995
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| 3 | */
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| 4 |
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| 5 | #include <ibm/partition.h>
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| 6 |
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| 7 | _PROTOTYPE( void partition, (struct driver *dr, int device, int style, int atapi) );
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| 8 |
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| 9 | /* BIOS parameter table layout. */
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| 10 | #define bp_cylinders(t) (* (u16_t *) (&(t)[0]))
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| 11 | #define bp_heads(t) (* (u8_t *) (&(t)[2]))
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| 12 | #define bp_reduced_wr(t) (* (u16_t *) (&(t)[3]))
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| 13 | #define bp_precomp(t) (* (u16_t *) (&(t)[5]))
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| 14 | #define bp_max_ecc(t) (* (u8_t *) (&(t)[7]))
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| 15 | #define bp_ctlbyte(t) (* (u8_t *) (&(t)[8]))
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| 16 | #define bp_landingzone(t) (* (u16_t *) (&(t)[12]))
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| 17 | #define bp_sectors(t) (* (u8_t *) (&(t)[14]))
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| 18 |
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| 19 | /* Miscellaneous. */
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| 20 | #define DEV_PER_DRIVE (1 + NR_PARTITIONS)
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| 21 | #define MINOR_t0 64
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| 22 | #define MINOR_r0 120
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| 23 | #define MINOR_d0p0s0 128
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| 24 | #define MINOR_fd0p0 (28<<2)
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| 25 | #define P_FLOPPY 0
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| 26 | #define P_PRIMARY 1
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| 27 | #define P_SUB 2
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