154 lines
5.4 KiB
C
154 lines
5.4 KiB
C
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/* @(#)hardware_structs.h 1.1 94/10/31 SMI */
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/*
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* Copyright (c) 1991 by Sun Microsystems, Inc.
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*/
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#ifndef _HARDWARE_STRUCTS_
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#define _HARDWARE_STRUCTS_
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/*
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* This file contains definitions of data structures pertaining to disks
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* and controllers.
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*/
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/*
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* This structure describes a specific disk. These structures are in a
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* linked list because they are malloc'd as disks are found during the
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* initial search.
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*/
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struct disk_info {
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short disk_unit; /* unit number of disk */
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short disk_slave; /* slave number of disk */
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struct disk_type *disk_type; /* ptr to physical info */
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struct partition_info *disk_parts; /* ptr to partition info */
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struct ctlr_info *disk_ctlr; /* ptr to disk's ctlr */
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struct disk_info *disk_next; /* ptr to next disk */
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int disk_flags; /* misc gotchas */
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};
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/*
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* This structure describes a type (model) of drive. It is malloc'd
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* and filled in as the data file is read and when a type 'other' disk
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* is selected. The link is used to make a list of all drive types
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* supported by a ctlr type.
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*/
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struct disk_type {
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char *dtype_asciilabel; /* drive identifier */
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int dtype_flags; /* flags for disk type */
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u_long dtype_options; /* flags for following options */
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u_int dtype_fmt_time; /* format time */
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u_int dtype_bpt; /* # bytes per track */
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u_short dtype_ncyl; /* # of data cylinders */
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u_short dtype_acyl; /* # of alternate cylinders */
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u_short dtype_pcyl; /* # of physical cylinders */
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u_short dtype_nhead; /* # of heads */
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u_short dtype_nsect; /* # of data sectors/track */
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u_short dtype_phead; /* # physical heads */
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u_short dtype_psect; /* # physical sect/track */
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u_short dtype_read_retries; /* # read retries */
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u_short dtype_write_retries; /* # write retries */
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u_short dtype_rpm; /* rotations per minute */
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u_short dtype_cyl_skew; /* cylinder skew */
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u_short dtype_trk_skew; /* track skew */
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u_short dtype_trks_zone; /* # tracks per zone */
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u_short dtype_atrks; /* # alt. tracks */
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u_short dtype_asect; /* # alt. sectors */
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u_short dtype_cache; /* cache control */
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u_short dtype_threshold; /* cache prefetch threshold */
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u_short dtype_prefetch_min; /* cache min. prefetch */
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u_short dtype_prefetch_max; /* cache max. prefetch */
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u_int dtype_specifics[8]; /* ctlr specific drive info */
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struct chg_list *dtype_chglist; /* mode sense/select */
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/* change list - scsi */
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struct partition_info *dtype_plist; /* possible partitions */
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struct disk_type *dtype_next; /* ptr to next drive type */
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};
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/*
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* This structure describes a specific ctlr. These structures are in
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* a linked list because they are malloc'd as ctlrs are found during
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* the initial search.
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*/
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struct ctlr_info {
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char ctlr_cname[DK_DEVLEN]; /* name of ctlr */
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char ctlr_dname[DK_DEVLEN]; /* name of disks */
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u_short ctlr_flags; /* flags for ctlr */
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short ctlr_num; /* number of ctlr */
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int ctlr_addr; /* address of ctlr */
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u_int ctlr_space; /* bus space it occupies */
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int ctlr_prio; /* interrupt priority */
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int ctlr_vec; /* interrupt vector */
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struct ctlr_type *ctlr_ctype; /* ptr to ctlr type info */
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struct ctlr_info *ctlr_next; /* ptr to next ctlr */
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};
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/*
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* This structure describes a type (model) of ctlr. All supported ctlr
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* types are built into the program statically, they cannot be added by
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* the user.
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*/
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struct ctlr_type {
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u_short ctype_ctype; /* type of ctlr */
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char *ctype_name; /* name of ctlr type */
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struct ctlr_ops *ctype_ops; /* ptr to ops vector */
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int ctype_flags; /* flags for gotchas */
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struct disk_type *ctype_dlist; /* list of disk types */
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};
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/*
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* This structure is the operation vector for a controller type. It
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* contains pointers to all the functions a controller type can support.
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*/
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struct ctlr_ops {
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int (*rdwr)(); /* read/write - mandatory */
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int (*ck_format)(); /* check format - mandatory */
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int (*format)(); /* format - mandatory */
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int (*ex_man)(); /* get manufacturer's list - optional */
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int (*ex_cur)(); /* get current list - optional */
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int (*repair)(); /* repair bad sector - optional */
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int (*create)(); /* create original manufacturers */
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/* defect list. - optional */
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int (*wr_cur)(); /* write current list - optional */
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};
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/*
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* This structure describes a specific partition layout. It is malloc'd
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* when the data file is read and whenever the user creates his own
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* partition layout. The link is used to make a list of possible
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* partition layouts for each drive type.
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*/
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struct partition_info {
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char *pinfo_name; /* name of layout */
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struct dk_map pinfo_map[NDKMAP]; /* layout info */
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struct partition_info *pinfo_next; /* ptr to next layout */
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};
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/*
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* This structure describes a change to be made to a particular
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* SCSI mode sense page, before issuing a mode select on that
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* page. This changes are specified in format.dat, and one
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* such structure is created for each specification, linked
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* into a list, in the order specified.
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*/
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struct chg_list {
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int pageno; /* mode sense page no. */
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int byteno; /* byte within page */
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int mode; /* see below */
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int value; /* desired value */
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struct chg_list *next; /* ptr to next */
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};
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/*
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* Change list modes
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*/
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#define CHG_MODE_UNDEFINED (-1) /* undefined value */
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#define CHG_MODE_SET 0 /* set bits by or'ing */
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#define CHG_MODE_CLR 1 /* clr bits by and'ing */
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#define CHG_MODE_ABS 2 /* set absolute value */
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#endif !_HARDWARE_STRUCTS_
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