FreeBSD/Linux Kernel Cross Reference
sys/sqtsec/scsi.h

     /* 
      * Mach Operating System
      * Copyright (c) 1991 Carnegie Mellon University
      * Copyright (c) 1991 Sequent Computer Systems
      * All Rights Reserved.
      * 
      * Permission to use, copy, modify and distribute this software and its
      * documentation is hereby granted, provided that both the copyright
      * notice and this permission notice appear in all copies of the
     * software, derivative works or modified versions, and any portions
     * thereof, and that both notices appear in supporting documentation.
     * 
     * CARNEGIE MELLON AND SEQUENT COMPUTER SYSTEMS ALLOW FREE USE OF
     * THIS SOFTWARE IN ITS "AS IS" CONDITION.  CARNEGIE MELLON AND
     * SEQUENT COMPUTER SYSTEMS DISCLAIM ANY LIABILITY OF ANY KIND FOR
     * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     * 
     * Carnegie Mellon requests users of this software to return to
     * 
     *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
     *  School of Computer Science
     *  Carnegie Mellon University
     *  Pittsburgh PA 15213-3890
     * 
     * any improvements or extensions that they make and grant Carnegie Mellon 
     * the rights to redistribute these changes.
     */
    
    /*
     * HISTORY
     * $Log:        scsi.h,v $
     * Revision 2.3  91/07/31  18:07:04  dbg
     *      Changed copyright.
     *      [91/07/31            dbg]
     * 
     * Revision 2.2  91/05/08  13:06:26  dbg
     *      Added, from Sequent SYMMETRY sources.
     *      [91/02/26            dbg]
     * 
     */
    
    /*
     * $Header: scsi.h,v 2.3 91/07/31 18:07:04 dbg Exp $
     *
     * Supported SCSI commands
     */
    
    /*
     * Revision 1.1  89/07/05  13:20:13  kak
     * Initial revision
     * 
     */
    
    #ifndef _SQT_SCSI_H_
    #define _SQT_SCSI_H_
    
    /* class 00 commands */
    #define SCSI_TEST       0x00            /* test unit ready */
    #define SCSI_REZERO     0x01            /* rezero unit */
    #define SCSI_RSENSE     0x03            /* request sense */
    #define SCSI_FORMAT     0x04            /* format unit */
    #define SCSI_READ       0x08            /* read */
    #define SCSI_WRITE      0x0a            /* write */
    #define SCSI_SEEK       0x0b            /* seek */
    #define SCSI_TRAN       0x0f            /* translate logical to phys */
    #define SCSI_INQUIRY    0x12            /* do inquiry */
    #define SCSI_WRITEB     0x13            /* write buffer */
    #define SCSI_READB      0x14            /* read buffer */
    #define SCSI_MODES      0x15            /* mode select */
    #define SCSI_RESRV      0x16            /* reserve unit */
    #define SCSI_RELSE      0x17            /* release unit */
    #define SCSI_MSENSE     0x1a            /* mode sense */
    #define SCSI_STARTOP    0x1b            /* start/stop unit */
    #define         SCSI_START_UNIT         0x01
    #define         SCSI_STOP_UNIT          0x00
    #define SCSI_RDIAG      0x1c            /* receive diagnostic */
    #define SCSI_SDIAG      0x1d            /* send diagnostic */
    #define         SCSI_SDIAG_REINIT       0x60
    #define         SCSI_SDIAG_DUMP_HW      0x61
    #define         SCSI_SDIAG_DUMP_RAM     0x62
    #define         SCSI_SDIAG_PATCH_HW     0x63
    #define         SCSI_SDIAG_PATCH_RAM    0x64
    #define         SCSI_SDIAG_SET_RD_ERR   0x65
    #define                 SCSI_SDIAG_RD_ERR_DEF   0x00
    #define                 SCSI_SDIAG_RD_ERR_RPT   0x01
    #define                 SCSI_SDIAG_RD_ERR_NOC   0x02
    
    /* class 01 commands */
    #define SCSI_READC      0x25            /* read capacity */
    #define         SCSI_FULL_CAP           0x00
    #define         SCSI_PART_CAP           0x01
    
    /*
     * unsupported SCSI commands
     */
    #define SCSI_SET_THRESHOLD      0x10
    #define SCSI_RD_USAGE_CTRS      0x11
    #define SCSI_READ_EXTENDED      0x28
    #define SCSI_WRITE_EXTENDED     0x2A
   #define SCSI_WRITE_AND_VERIFY   0x2E
   #define SCSI_VERIFY             0x2F
   #define SCSI_SEARCH_DATA_EQUAL  0x31
   #define SCSI_SET_LIMITS         0x33
   
   /*
    * Tape commands
    */
   #define SCSI_REWIND     0x01            /* Rewind command */
   #define SCSI_RETENSION  0x02            /* Retention a tape */
   #define SCSI_WFM        0x10            /* Write a file mark */
   #define SCSI_SPACE      0x11            /* Space (default blocks) fwd */
   #define SCSI_ERASE      0x19            /* Erase a tape */
   
   /*
    * Sizes of data transferred for some standard commands
    */
   #define SIZE_CAP        8       /* nbr bytes in Read Capacity input data */
   #define SIZE_TRANS      8       /* nbr bytes in Translate input data */
   
   /*
    * structure for SCSI mode select command
    */
   #define SCSI_MODES_ILEN         22      /* bytes in data block */
   #define SCSI_MODES_DLEN         8       /* length of extent descriptor list */
   
   struct  scsi_modes {
                           /* command list */
           u_char  m_type;         /* command type */
           u_char  m_unit;         /* upper 3 bits are unit */
           u_char  m_pad1[2];      /* reserved */
           u_char  m_ilen;         /* length of info passed */
           u_char  m_cont;         /* control byte */
                           /* parameter list */
           u_char  m_pad2[3];      /* reserved */
           u_char  m_dlen;         /* length of descript list */
                           /* extent descriptor list */
           u_char  m_density;      /* density code */
           u_char  m_pad3[4];      /* reserved */
           u_char  m_bsize[3];     /* block size */
                           /* drive parameter list */
           u_char  m_fcode;        /* format code */
           u_char  m_cyls[2];      /* cylinder count */
           u_char  m_heads;        /* data head count */
           u_char  m_rwcc[2];      /* reduced write current cylinder */
           u_char  m_wpc[2];       /* write precompensation cylinder */
           char    m_lzone;        /* landing zone position */
           u_char  m_srate;        /* step pulse output rate code */
   };
   
   /* 
    * structures for SCSI format command
    */
   struct dlist {                  /* defect list entries */
           u_char  d_cyls[3];      /* cyl of defect */
           u_char  d_heads;        /* head nbr */
           u_char  d_bytes[4];     /* bytes from index */
   };
   
   #define FORMAT_BUF      1024    /* max bytes for Format Data */
   #define MAX_DEFECTS     (FORMAT_BUF / sizeof(struct dlist))
   
   struct  scsi_fmt {
                           /* command list */
           u_char  f_type;         /* command type */
           u_char  f_misc;         /* 3 bit unit, data flag, complete list bits */
           u_char  f_data;         /* data pattern */
           u_char  f_ileave[2];    /* interleave */
           u_char  f_pad1;         /* reserved */
                           /* defect list */
           u_char  f_full;         /* full or cyl flag */
           u_char  f_spares;       /* nbr spares/cyl */
           u_char  f_dlen[2];      /* length of defect list blocks */
           struct dlist dlist[MAX_DEFECTS]; /* blocks of defect list */
   };
   
   /*
    * scsi_fmt.f_misc flags
    */
   #define FMT_BBL_DATA    0x10            /* bbl data exists */
   #define FMT_CMPLT       0x08            /* bbl data is complete */
   #define FMT_USER_FMT    0x04            /* use user-supplied fmt data */
   #define FMT_DATA        0x02            /* use user-supplied data pattern */
   #define FMT_ALL         (FMT_BBL_DATA | FMT_CMPLT | FMT_USER_FMT | FMT_DATA)
   
   /*
    * scsi_fmt.f_data
    */
   #define FMT_PAT         0x6D            /* worst winchester data */
   
   /*
    * scsi_fmt.f_full flags
    */
   #define FMT_FULL        0x00            /* complete drive */
   #define FMT_CYL         0x01            /* single cylinder */
   
   /*
    * scsi_fmt.f_code
    */
   #define FMT_FCODE       0x01            /* must be 1 */
   
   /*
    * SCSI_UNIT Macro:
    *      bits 0-2: unit number on the hardware (up to 8)
    *      bits 3-5: target number (up to 8)
    *      bits 6-8: drive  type (up to 8), index into configuration table 
    *      bits 9-11: SEC board number
    *
    *      On embedded SCSI, the unit number is always 0.
    */
   #define SCSI_UNIT(x)    (((x)>>0)&7)
   #define SCSI_TARGET(x)  (((x)>>3)&7)
   #define SCSI_TYPE(x)    (((x)>>6)&7)
   #define SCSI_BOARD(x)   (((x)>>9)&7)
   #define SCSI_DEVNO(x)   (SDEV_SCSISTART + (SCSI_TARGET((x))<<3) + (SCSI_UNIT((x))) )
   
   #endif  /* _SQT_SCSI_H_ */

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