FreeBSD/Linux Kernel Cross Reference
sys/dev/gpib/mtreg.h

     /*      $NetBSD: mtreg.h,v 1.2 2004/02/24 15:12:52 wiz Exp $    */
     
     /* 
      * Copyright (c) 1992, The University of Utah and
      * the Computer Systems Laboratory at the University of Utah (CSL).
      * All rights reserved.
      *
      * Permission to use, copy, modify and distribute this software is hereby
      * granted provided that (1) source code retains these copyright, permission,
     * and disclaimer notices, and (2) redistributions including binaries
     * reproduce the notices in supporting documentation, and (3) all advertising
     * materials mentioning features or use of this software display the following
     * acknowledgement: ``This product includes software developed by the
     * Computer Systems Laboratory at the University of Utah.''
     *
     * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
     * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
     * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     *
     * CSL requests users of this software to return to csl-dist@cs.utah.edu any
     * improvements that they make and grant CSL redistribution rights.
     *
     *      Utah $Hdr: mtreg.h 1.4 95/09/12$
     */
    
    /*      @(#)mtreg.h     3.4     90/07/10        mt Xinu
     *
     *      Hewlett-Packard 7974, 7978, 7979 and 7980 HPIB Mag-Tape declarations.
     */
    
    /*
     *      Hardware Id's
     */
    
    #define MT7974AID       0x174
    #define MT7978ID        0x178
    #define MT7979AID       0x179
    #define MT7980ID        0x180
    
    /* convert bytes to 1k tape block and back */
    #define CTBTOK(x)       ((x) >> 10)
    #define CTKTOB(x)       ((x) << 10)
    
    /*
     *      Listen Secondary Commands
     */
    
    #define MTL_WRITE       0       /* write execute */
    #define MTL_TCMD        1       /* tape command */
    #define MTL_DIAG        4       /* download diagnostic */
    #define MTL_FUP         6       /* write firmware update */
    #define MTL_ECMD        7       /* end command */
    #define MTL_DCL         16      /* amigo device clear */
    #define MTL_CCRC        17      /* clear CRC */
    #define MTL_XTEST       29      /* run 7979a/7980 extended self test */
    #define MTL_LOOP        30      /* write interface loopback */
    #define MTL_TEST        31      /* run self test */
    
    /*
     *      Talk Secondary Commands
     */
    
    #define MTT_READ        0       /* read execute */
    #define MTT_STAT        1       /* read status */
    #define MTT_BCNT        2       /* read byte count */
    #define MTT_DIAG        3       /* read diagnostic results */
    #define MTT_FREV        4       /* read firmware revisions (7980xc) */
    #define MTT_LOG         5       /* read diagnostic log */
    #define MTT_FUP         6       /* read firmware update */
    #define MTT_XSTAT       15      /* read extended status (7979a/7980a) */
    #define MTT_DSJ         16      /* read DSJ (device specified jump) */
    #define MTT_RCRC        17      /* read CRC */
    #define MTT_XTEST       29      /* read 7979a/7980 extended self test */
    #define MTT_LOOP        30      /* read interface loopback */
    #define MTT_TEST        31      /* read self test */
    
    /*
     *      Tape commands
     */
    
    #define MTTC_SEL0       0       /* Select Unit 0 (native protocol) */
    #define MTTC_WRITE      5       /* Write Record */
    #define MTTC_WFM        6       /* Write File Mark */
    #define MTTC_WGAP       7       /* Write Gap */
    #define MTTC_READ       8       /* Read record */
    #define MTTC_FSR        9       /* forward space record */
    #define MTTC_BSR        10      /* backward space record */
    #define MTTC_FSF        11      /* forward space file */
    #define MTTC_BSF        12      /* backward space file */
    #define MTTC_REW        13      /* rewind */
    #define MTTC_REWOFF     14      /* rewind and go offline */
    #define MTTC_DC6250     15      /* set data compressed 6250 */
    #define MTTC_6250       16      /* set 6250 bpi */
    #define MTTC_1600       17      /* set 1600 bpi */
    #define MTTC_800        18      /* set 800 bpi */
    #define MTTC_NC6250     19      /* set non-compressed 6250 */
    #define MTTC_STSTP      20      /* start/stop mode only */
    #define MTTC_STRM       21      /* enable streaming */
    #define MTTC_DIRM       22      /* disable immediate report mode */
   #define MTTC_EIRM       23      /* enable immediate report mode */
   #define MTTC_STAT       24      /* request status */
   #define MTTC_RLD        25      /* remote load */
   #define MTTC_RUNLD      26      /* remote unload */
   #define MTTC_RON        28      /* remote online */
   #define MTTC_DDC        30      /* disable data compression */
   #define MTTC_EDC        31      /* enable data compression */
   
   /*
    *      End Command Bits (of any interest)
    */
   #define MTE_COMPLETE    0x08    /* "marks the end of the report phase" */
   #define MTE_IDLE        0x04    /* enables parallel poll resp. for online */
   #define MTE_STOP        0x02    /* aborts transfer of "read" data */
   
   #define MTE_DSJ_FORCE   0x100   /* XXX During readDSJ, force a status fetch */
   
   
   struct  mt_stat {
           u_char  m_stat[6];
   };
   
   /* sc_flags */
   #define MTF_OPEN        0x0001  /* drive is in use (single-access device) */
   #define MTF_EXISTS      0x0002  /* device was found at boot time */
   #define MTF_ALIVE       0x0004  /* drive actually talks to us */
   #define MTF_WRT         0x0008  /* last command was a WRITE */
   #define MTF_IO          0x0010  /* next interrupt should start I/O (DMA) */
   #define MTF_REW         0x0020  /* tape is rewinding - must wait for it */
   #define MTF_HITEOF      0x0040  /* last read or FSR hit EOF (file mark) */
   #define MTF_HITBOF      0x0080  /* last BSR hit EOF (file mark) */
   #define MTF_ATEOT       0x0100  /* tape hit EOT - can allow one forward op */
   #define MTF_PASTEOT     0x0200  /* tape is beyond EOT - force backward motion */
   #define MTF_DSJTIMEO    0x0400  /* timed out gpibrecv()ing DSJ - continue it */
   #define MTF_STATTIMEO   0x0800  /* timed out recieving STATUS - continue it */
   #define MTF_STATCONT    0x1000  /* STATTIMEO is continuable */
   
   /* additional "mtcommand"s */
   #define MTRESET         16      /* reset the thing from scratch */
   #define MTSET800BPI     17      /* density select */
   #define MTSET1600BPI    18
   #define MTSET6250BPI    19
   #define MTSET6250DC     20      /* (data compressed - MT7980ID only) */
   
   /* status bytes */
   #define sc_stat1        sc_stat.m_stat[0]
   #define sc_stat2        sc_stat.m_stat[1]
   #define sc_stat3        sc_stat.m_stat[2]
   #define sc_stat4        sc_stat.m_stat[3]
   #define sc_stat5        sc_stat.m_stat[4]
   #define sc_stat6        sc_stat.m_stat[5]
   
   /*
    *      Status Register definitions
    */
   
   #define SR1_EOF         0x80    /* positioned at File Mark */
   #define SR1_BOT         0x40    /* positioned at Beginning of Tape */
   #define SR1_EOT         0x20    /* positioned at End of Tape */
   #define SR1_SOFTERR     0x10    /* Recoverable Error has Occurred */
   #define SR1_REJECT      0x08    /* HPIB Cmd rejected - Regs 4 & 5 have info */
   #define SR1_RO          0x04    /* No Write Ring */
   #define SR1_ERR         0x02    /* Unrecoverable Data error - Reg 5 has info */
   #define SR1_ONLINE      0x01    /* Drive Online (must be to do any operation) */
   
   #define SR2_6250        0x80    /* tape is 6250BPI */
   #define SR2_UNKDEN      0x40    /* non-blank tape is of unknown density */
   #define SR2_PARITY      0x20    /* internal bus data parity error detected */
   #define SR2_OVERRUN     0x10    /* data buffer overrun (not possible?) */
   #define SR2_RUNAWAY     0x08    /* during read, no data detected on tape */
   #define SR2_OPEN        0x04    /* tape door is open */
   #define SR2_LONGREC     0x02    /* large record support (32k@1600, 60K@6250,
                                      otherwise, it's 16K at all densities) */
   #define SR2_IMMED       0x01    /* Immediate Response (for writes) enabled */
   
   #define SR3_1600        0x80    /* tape is 1600BPI */
   #define SR3_800         0x40    /* tape is 800BPI */
   #define SR3_POWERUP     0x20    /* power recently restored or Dev Clr done */
   #define SR3_HPIBPAR     0x10    /* HPIB command parity error detected */
   #define SR3_LOST        0x08    /* position on tape is unknown */
   #define SR3_FMTERR      0x04    /* formatter error - Reg 5 has info */
   #define SR3_SVOERR      0x02    /* motion servo error - Reg 4 has info */
   #define SR3_CTLERR      0x01    /* controller error - Reg 5 has info */
   
   #define SR4_ERCLMASK    0xe0    /* Mask of error classes (for SR1_REJECT) */
   #define SR4_NONE        0x00
   #define SR4_DEVICE      0x40
   #define SR4_PROTOCOL    0x60
   #define SR4_SELFTEST    0xe0
   #define SR4_RETRYMASK   0x1f    /* Mask for retry count (for any error) */
   
   /* SR5 holds lots of error codes, referenced above.  Complete list:
    * (DEVICE REJECT)
    *        5     Tape is write protected
    *        6     Tape isn't loaded
    *        7     Requested density not supported
    *        9     Tape being read is unreadable
    *       10     Tape being written is unidentifiable
    *       11     Drive offline
    *       16     Changing density while not at BOT
    *       19     Backward motion requested while at BOT
    *       23     Protocol out of sync
    *       24     Unknown tape command
    *       31     Write request too big for drive/density
    *       32     Beyond EOT
    *       33     Self Test Failure
    *       37     Tape positioning failure while removing readaheads
    *       40     Door open
    * (UNRECOVERED DATA/FORMAT ERRORS)
    *       41     Tape velocity out of spec
    *       45     Multiple track data error
    *       47     Write verify failed
    *       48     Noise found while trying to detect data record
    *       49     Data format error
    *       50     Couldn't identify tape after rewind
    *       51     Gap detected before end of data record
    *       52     Data block dropout
    *       53     CRC error
    *       54     Parity error
    *       55     Door open
    *       57     Maximum skew exceeded
    *       58     False data block detected
    *       59     Corrected data error on write
    *       60     Buffer overrun - record size on tape larger than supported
    *       61     Data block timeout (possibly record length too long)
    *       62     Tape mark dropout
    *       63     Tape mark unverified
    *       64     Tape mark timeout (no gap following tape mark)
    * (POSITION or SERVO ERRORS) - these are ALL internal to tape drive
    *       81     Servo unresponsive
    *       82     Servo didn't respond with corect state
    *       83     Servo shutdown
    *       84     Servo detected hardware failure
    *       85     Servo protocol error
    *       86     Runtime Servo error
    *       87     Missing position interrupt
    *       88     No Gap after read or write
    *       89     Motor shutdown for safety reasons
    *       90     Couldn't find tape BOT mark
    *       91     Drive motor running too fast or slow
    *       92     Requested controller state invalid within context
    *       94     Tape positioning failure
    * (FORMATTER ERROR)
    *      101,108 Read formatter unresponsive
    *      102,107 Read formatter hardware error
    *      103     Write detected bad block
    *      104     Erase failure
    *      105     No data detected after write
    *      106     Tracks out of sync on write verify
    *      109     No gap timeout
    *      110     Formatter <--> data buffer byte count mismatch
    * (CONTROLLER ERROR) - these are ALL internal to drive
    *      121     Transaction ID mismatch (device vs. controller)
    *      122     Devoce report has no coorepinding command
    *      123     Invalid device report
    *      124     Repost queue overflow
    *      125     Unknown command from device
    *      126     Command queue overflow
    *      128     Missing End-Of-Record flag in data buffer
    *      129     Data buffer parity error
    *      130     Data buffer underrun during write
    *      131     Byte count mismatch in data buffer queue
    *      132     Bad message type from device
    *      133     Abort between HPIB interface and channel program
    *      134     Unknown HPIB interface exception
    *      137     Illegal access to servo conntroller registers
    *      138     Device program firmware error
    *      139     Hardware utilities firmware error
    *      140     Channel program firmware error
    *      141     Encoder inoperative
    *      150     Tape position synchronization error
    *      151     Tape deblocking error (Xtra Capacity only)
    *      152     Compression/Decompression hardware error (Xtra Capacity only)
    * (PROTOCOL ERROR) - USUALLY indicates deficiency in driver
    *      161     No room in Command Queue
    *      162     Expected "request DSJ"
    *      163     Expected status request
    *      165     Unknown unit select
    *      166     Tape command secondary expected
    *      167     Data byte expected
    *      168     Missing EOI on data byte
    *      170     Write command phase protocol error
    *      172     Read record report phase error
    *      173     Report phase protocol error
    *      174     Cold load sequence error
    *      175     HPIB protocol sequence error
    *      176     END command expected
    *      178     END DATA expected
    *      180     Unknown interface secondary command
    *      181     Misplaced data byte
    *      184     Interface Loopback protocol error
    *      185     Self test protocol error
    *      188     HPIB parity error
    *      189     Operator reset during protocol sequence
    *      190     Device clear received
    */
   
   /* SR6 is count of commands accepted since Immediate Response command failed */

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