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Annotation of researchv9/sys/sun/dkio.h, revision 1.1

1.1     ! root        1: /*     @(#)dkio.h 1.1 86/02/03 SMI     */
        !             2: 
        !             3: /*
        !             4:  * Copyright (c) 1983 by Sun Microsystems, Inc.
        !             5:  */
        !             6: 
        !             7: /*
        !             8:  * Structures and definitions for disk io control commands
        !             9:  */
        !            10: 
        !            11: /* Disk identification */
        !            12: struct dk_info {
        !            13:        int     dki_ctlr;               /* controller address */
        !            14:        short   dki_unit;               /* unit (slave) address */
        !            15:        short   dki_ctype;              /* controller type */
        !            16:        short   dki_flags;              /* flags */
        !            17: };
        !            18: /* controller types */
        !            19: #define        DKC_UNKNOWN     0
        !            20: #define        DKC_SMD2180     1
        !            21: #define        DKC_WDC2880     2
        !            22: #define        DKC_SMD2181     3
        !            23: #define        DKC_XY440       4
        !            24: #define        DKC_DSD5215     5
        !            25: #define        DKC_XY450       6
        !            26: #define        DKC_SCSI        7
        !            27: 
        !            28: /* flags */
        !            29: #define        DKI_BAD144      0x01    /* use DEC std 144 bad sector fwding */
        !            30: #define        DKI_MAPTRK      0x02    /* controller does track mapping */
        !            31: #define        DKI_FMTTRK      0x04    /* formats only full track at a time */
        !            32: #define        DKI_FMTVOL      0x08    /* formats only full volume at a time */
        !            33: 
        !            34: /* Definition of a disk's geometry */
        !            35: struct dk_geom {
        !            36:        unsigned short  dkg_ncyl;       /* # of data cylinders */
        !            37:        unsigned short  dkg_acyl;       /* # of alternate cylinders */
        !            38:        unsigned short  dkg_bcyl;       /* cyl offset (for fixed head area) */
        !            39:        unsigned short  dkg_nhead;      /* # of heads */
        !            40:        unsigned short  dkg_bhead;      /* head offset (for Larks, etc.) */
        !            41:        unsigned short  dkg_nsect;      /* # of sectors per track */
        !            42:        unsigned short  dkg_intrlv;     /* interleave factor */
        !            43:        unsigned short  dkg_gap1;       /* gap 1 size */
        !            44:        unsigned short  dkg_gap2;       /* gap 2 size */
        !            45:        unsigned short  dkg_extra[10];  /* for compatible expansion */
        !            46: };
        !            47: 
        !            48: /* disk io control commands */
        !            49: #define        DKIOCGGEOM      (('d'<<8)|1)    /* Get geometry */
        !            50: #define        DKIOCSGEOM      (('d'<<8)|2)    /* Set geometry */
        !            51: #define        DKIOCGPART      (('d'<<8)|3)    /* Get partition info */
        !            52: #define        DKIOCSPART      (('d'<<8)|4)    /* Set partition info */
        !            53: #define        DKIOCINFO       (('d'<<8)|5)    /* Get info */

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