Annotation of sys/arch/hp300/dev/mtreg.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: mtreg.h,v 1.4 2005/01/15 21:13:08 miod Exp $ */
2: /* $NetBSD: mtreg.h,v 1.1 1995/10/02 00:28:22 thorpej Exp $ */
3:
4: /*
5: * Copyright (c) 1992, The University of Utah and
6: * the Computer Systems Laboratory at the University of Utah (CSL).
7: * All rights reserved.
8: *
9: * Permission to use, copy, modify and distribute this software is hereby
10: * granted provided that (1) source code retains these copyright, permission,
11: * and disclaimer notices, and (2) redistributions including binaries
12: * reproduce the notices in supporting documentation, and (3) all advertising
13: * materials mentioning features or use of this software display the following
14: * acknowledgement: ``This product includes software developed by the
15: * Computer Systems Laboratory at the University of Utah.''
16: *
17: * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
18: * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
19: * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
20: *
21: * CSL requests users of this software to return to csl-dist@cs.utah.edu any
22: * improvements that they make and grant CSL redistribution rights.
23: *
24: * Utah $Hdr: mtreg.h 1.4 95/09/12$
25: */
26: /* @(#)mtreg.h 3.4 90/07/10 mt Xinu
27: *
28: * Hewlett-Packard 7974, 7978, 7979 and 7980 HPIB Mag-Tape declarations.
29: */
30:
31: /*
32: * Hardware Id's
33: */
34:
35: #define MT7974AID 0x174
36: #define MT7978ID 0x178
37: #define MT7979AID 0x179
38: #define MT7980ID 0x180
39:
40: /* convert bytes to 1k tape block and back */
41: #define CTBTOK(x) ((x) >> 10)
42: #define CTKTOB(x) ((x) << 10)
43:
44: /*
45: * Listen Secondary Commands
46: */
47:
48: #define MTL_WRITE 0 /* write execute */
49: #define MTL_TCMD 1 /* tape command */
50: #define MTL_DIAG 4 /* download diagnostic */
51: #define MTL_FUP 6 /* write firmware update */
52: #define MTL_ECMD 7 /* end command */
53: #define MTL_DCL 16 /* amigo device clear */
54: #define MTL_CCRC 17 /* clear CRC */
55: #define MTL_XTEST 29 /* run 7979a/7980 extended self test */
56: #define MTL_LOOP 30 /* write interface loopback */
57: #define MTL_TEST 31 /* run self test */
58:
59: /*
60: * Talk Secondary Commands
61: */
62:
63: #define MTT_READ 0 /* read execute */
64: #define MTT_STAT 1 /* read status */
65: #define MTT_BCNT 2 /* read byte count */
66: #define MTT_DIAG 3 /* read diagnostic results */
67: #define MTT_FREV 4 /* read firmware revisions (7980xc) */
68: #define MTT_LOG 5 /* read diagnostic log */
69: #define MTT_FUP 6 /* read firmware update */
70: #define MTT_XSTAT 15 /* read extended status (7979a/7980a) */
71: #define MTT_DSJ 16 /* read DSJ (device specified jump) */
72: #define MTT_RCRC 17 /* read CRC */
73: #define MTT_XTEST 29 /* read 7979a/7980 extended self test */
74: #define MTT_LOOP 30 /* read interface loopback */
75: #define MTT_TEST 31 /* read self test */
76:
77: /*
78: * Tape commands
79: */
80:
81: #define MTTC_SEL0 0 /* Select Unit 0 (native protocol) */
82: #define MTTC_WRITE 5 /* Write Record */
83: #define MTTC_WFM 6 /* Write File Mark */
84: #define MTTC_WGAP 7 /* Write Gap */
85: #define MTTC_READ 8 /* Read record */
86: #define MTTC_FSR 9 /* forward space record */
87: #define MTTC_BSR 10 /* backward space record */
88: #define MTTC_FSF 11 /* forward space file */
89: #define MTTC_BSF 12 /* backward space file */
90: #define MTTC_REW 13 /* rewind */
91: #define MTTC_REWOFF 14 /* rewind and go offline */
92: #define MTTC_DC6250 15 /* set data compressed 6250 */
93: #define MTTC_6250 16 /* set 6250 bpi */
94: #define MTTC_1600 17 /* set 1600 bpi */
95: #define MTTC_800 18 /* set 800 bpi */
96: #define MTTC_NC6250 19 /* set non-compressed 6250 */
97: #define MTTC_STSTP 20 /* start/stop mode only */
98: #define MTTC_STRM 21 /* enable streaming */
99: #define MTTC_DIRM 22 /* disable immediate report mode */
100: #define MTTC_EIRM 23 /* enable immediate report mode */
101: #define MTTC_STAT 24 /* request status */
102: #define MTTC_RLD 25 /* remote load */
103: #define MTTC_RUNLD 26 /* remote unload */
104: #define MTTC_RON 28 /* remote online */
105: #define MTTC_DDC 30 /* disable data compression */
106: #define MTTC_EDC 31 /* enable data compression */
107:
108: /*
109: * End Command Bits (of any interest)
110: */
111: #define MTE_COMPLETE 0x08 /* "marks the end of the report phase" */
112: #define MTE_IDLE 0x04 /* enables parallel poll resp. for online */
113: #define MTE_STOP 0x02 /* aborts transfer of "read" data */
114:
115: #define MTE_DSJ_FORCE 0x100 /* XXX During readDSJ, force a status fetch */
116:
117:
118: struct mt_stat {
119: u_char m_stat[6];
120: };
121:
122: /* sc_flags */
123: #define MTF_OPEN 0x0001 /* drive is in use (single-access device) */
124: #define MTF_EXISTS 0x0002 /* device was found at boot time */
125: #define MTF_ALIVE 0x0004 /* drive actually talks to us */
126: #define MTF_WRT 0x0008 /* last command was a WRITE */
127: #define MTF_IO 0x0010 /* next interrupt should start I/O (DMA) */
128: #define MTF_REW 0x0020 /* tape is rewinding - must wait for it */
129: #define MTF_HITEOF 0x0040 /* last read or FSR hit EOF (file mark) */
130: #define MTF_HITBOF 0x0080 /* last BSR hit EOF (file mark) */
131: #define MTF_ATEOT 0x0100 /* tape hit EOT - can allow one forward op */
132: #define MTF_PASTEOT 0x0200 /* tape is beyond EOT - force backward motion */
133: #define MTF_DSJTIMEO 0x0400 /* timed out hpibrecv()ing DSJ - continue it */
134: #define MTF_STATTIMEO 0x0800 /* timed out receiving STATUS - continue it */
135: #define MTF_STATCONT 0x1000 /* STATTIMEO is continuable */
136:
137: /* additional "mtcommand"s */
138: #define MTRESET 16 /* reset the thing from scratch */
139: #define MTSET800BPI 17 /* density select */
140: #define MTSET1600BPI 18
141: #define MTSET6250BPI 19
142: #define MTSET6250DC 20 /* (data compressed - MT7980ID only) */
143:
144: /* status bytes */
145: #define sc_stat1 sc_stat.m_stat[0]
146: #define sc_stat2 sc_stat.m_stat[1]
147: #define sc_stat3 sc_stat.m_stat[2]
148: #define sc_stat4 sc_stat.m_stat[3]
149: #define sc_stat5 sc_stat.m_stat[4]
150: #define sc_stat6 sc_stat.m_stat[5]
151:
152: /*
153: * Status Register definitions
154: */
155:
156: #define SR1_EOF 0x80 /* positioned at File Mark */
157: #define SR1_BOT 0x40 /* positioned at Beginning of Tape */
158: #define SR1_EOT 0x20 /* positioned at End of Tape */
159: #define SR1_SOFTERR 0x10 /* Recoverable Error has Occured */
160: #define SR1_REJECT 0x08 /* HPIB Cmd rejected - Regs 4 & 5 have info */
161: #define SR1_RO 0x04 /* No Write Ring */
162: #define SR1_ERR 0x02 /* Unrecoverable Data error - Reg 5 has info */
163: #define SR1_ONLINE 0x01 /* Drive Online (must be to do any operation) */
164:
165: #define SR2_6250 0x80 /* tape is 6250BPI */
166: #define SR2_UNKDEN 0x40 /* non-blank tape is of unknown density */
167: #define SR2_PARITY 0x20 /* internal bus data parity error detected */
168: #define SR2_OVERRUN 0x10 /* data buffer overrun (not possible?) */
169: #define SR2_RUNAWAY 0x08 /* during read, no data detected on tape */
170: #define SR2_OPEN 0x04 /* tape door is open */
171: #define SR2_LONGREC 0x02 /* large record support (32k@1600, 60K@6250,
172: otherwise, it's 16K at all densities) */
173: #define SR2_IMMED 0x01 /* Immediate Response (for writes) enabled */
174:
175: #define SR3_1600 0x80 /* tape is 1600BPI */
176: #define SR3_800 0x40 /* tape is 800BPI */
177: #define SR3_POWERUP 0x20 /* power recently restored or Dev Clr done */
178: #define SR3_HPIBPAR 0x10 /* HPIB command parity error detected */
179: #define SR3_LOST 0x08 /* position on tape is unknown */
180: #define SR3_FMTERR 0x04 /* formatter error - Reg 5 has info */
181: #define SR3_SVOERR 0x02 /* motion servo error - Reg 4 has info */
182: #define SR3_CTLERR 0x01 /* controller error - Reg 5 has info */
183:
184: #define SR4_ERCLMASK 0xe0 /* Mask of error classes (for SR1_REJECT) */
185: #define SR4_NONE 0x00
186: #define SR4_DEVICE 0x40
187: #define SR4_PROTOCOL 0x60
188: #define SR4_SELFTEST 0xe0
189: #define SR4_RETRYMASK 0x1f /* Mask for retry count (for any error) */
190:
191: /* SR5 holds lots of error codes, referenced above. Complete list:
192: * (DEVICE REJECT)
193: * 5 Tape is write protected
194: * 6 Tape isn't loaded
195: * 7 Requested density not supported
196: * 9 Tape being read is unreadable
197: * 10 Tape being written is unidentifiable
198: * 11 Drive offline
199: * 16 Changing density while not at BOT
200: * 19 Backward motion requested while at BOT
201: * 23 Protocol out of sync
202: * 24 Unknown tape command
203: * 31 Write request too big for drive/density
204: * 32 Beyond EOT
205: * 33 Self Test Failure
206: * 37 Tape positioning failure while removing readaheads
207: * 40 Door open
208: * (UNRECOVERED DATA/FORMAT ERRORS)
209: * 41 Tape velocity out of spec
210: * 45 Multiple track data error
211: * 47 Write verify failed
212: * 48 Noise found while trying to detect data record
213: * 49 Data format error
214: * 50 Couldn't identify tape after rewind
215: * 51 Gap detected before end of data record
216: * 52 Data block dropout
217: * 53 CRC error
218: * 54 Parity error
219: * 55 Door open
220: * 57 Maximum skew exceeded
221: * 58 False data block detected
222: * 59 Corrected data error on write
223: * 60 Buffer overrun - record size on tape larger than supported
224: * 61 Data block timeout (possibly record length too long)
225: * 62 Tape mark dropout
226: * 63 Tape mark unverified
227: * 64 Tape mark timeout (no gap following tape mark)
228: * (POSITION or SERVO ERRORS) - these are ALL internal to tape drive
229: * 81 Servo unresponsive
230: * 82 Servo didn't respond with corect state
231: * 83 Servo shutdown
232: * 84 Servo detected hardware failure
233: * 85 Servo protocol error
234: * 86 Runtime Servo error
235: * 87 Missing position interrupt
236: * 88 No Gap after read or write
237: * 89 Motor shutdown for safety reasons
238: * 90 Couldn't find tape BOT mark
239: * 91 Drive motor running too fast or slow
240: * 92 Requested controller state invalid within context
241: * 94 Tape positioning failure
242: * (FORMATTER ERROR)
243: * 101,108 Read formatter unresponsive
244: * 102,107 Read formatter hardware error
245: * 103 Write detected bad block
246: * 104 Erase failure
247: * 105 No data detected after write
248: * 106 Tracks out of sync on write verify
249: * 109 No gap timeout
250: * 110 Formatter <--> data buffer byte count mismatch
251: * (CONTROLLER ERROR) - these are ALL internal to drive
252: * 121 Transaction ID mismatch (device vs. controller)
253: * 122 Devoce report has no coorepinding command
254: * 123 Invalid device report
255: * 124 Repost queue overflow
256: * 125 Unknown command from device
257: * 126 Command queue overflow
258: * 128 Missing End-Of-Record flag in data buffer
259: * 129 Data buffer parity error
260: * 130 Data buffer underrun during write
261: * 131 Byte count mismatch in data buffer queue
262: * 132 Bad message type from device
263: * 133 Abort between HPIB interface and channel program
264: * 134 Unknown HPIB interface exception
265: * 137 Illegal access to servo conntroller registers
266: * 138 Device program firmware error
267: * 139 Hardware utilities firmware error
268: * 140 Channel program firmware error
269: * 141 Encoder inoperative
270: * 150 Tape position synchronization error
271: * 151 Tape deblocking error (Xtra Capacity only)
272: * 152 Compression/Decompression hardware error (Xtra Capacity only)
273: * (PROTOCOL ERROR) - USUALLY indicates deficiency in driver
274: * 161 No room in Command Queue
275: * 162 Expected "request DSJ"
276: * 163 Expected status request
277: * 165 Unknown unit select
278: * 166 Tape command secondary expected
279: * 167 Data byte expected
280: * 168 Missing EOI on data byte
281: * 170 Write command phase protocol error
282: * 172 Read record report phase error
283: * 173 Report phase protocol error
284: * 174 Cold load sequence error
285: * 175 HPIB protocol sequence error
286: * 176 END command expected
287: * 178 END DATA expected
288: * 180 Unknown interface secondary command
289: * 181 Misplaced data byte
290: * 184 Interface Loopback protocol error
291: * 185 Self test protocol error
292: * 188 HPIB parity error
293: * 189 Operator reset during protocol sequence
294: * 190 Device clear received
295: */
296:
297: /* SR6 is count of commands accepted since Immediate Response command failed */
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