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NetBSD/sys/arch/hp300/dev/mtreg.h
thorpej f12fd2307e Driver for HP 7974a, 7978a/b, 7979a, 7980a, and 7980xc 9-track HP-IB tapes. 
Original version contributed to Utah by Mt. Xinu.  Ported to 4.4BSD by
Mark Davies and Andrew Vignaux.
1995-10-02 00:28:20 +00:00

297 lines
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/* $NetBSD: mtreg.h,v 1.1 1995/10/02 00:28:22 thorpej 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 hpibrecv()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 Occured */
#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 recieved
*/
/* SR6 is count of commands accepted since Immediate Response command failed */
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