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1.1 root 1: /*
2: * Copyright (c) 1988 The Regents of the University of California.
3: * All rights reserved.
4: *
5: * This code is derived from software contributed to Berkeley by
6: * Computer Consoles Inc.
7: *
8: * Redistribution is only permitted until one year after the first shipment
9: * of 4.4BSD by the Regents. Otherwise, redistribution and use in source and
10: * binary forms are permitted provided that: (1) source distributions retain
11: * this entire copyright notice and comment, and (2) distributions including
12: * binaries display the following acknowledgement: This product includes
13: * software developed by the University of California, Berkeley and its
14: * contributors'' in the documentation or other materials provided with the
15: * distribution and in all advertising materials mentioning features or use
16: * of this software. Neither the name of the University nor the names of
17: * its contributors may be used to endorse or promote products derived from
18: * this software without specific prior written permission.
19: * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
20: * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
21: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
22: *
23: * @(#)cyreg.h 7.8 (Berkeley) 6/28/90
24: */
25:
26: /*
27: * Tapemaster controller definitions.
28: */
29:
30: /*
31: * With 20-bit addressing, the intermediate buffer
32: * must be allocated early in startup().
33: */
34: #define CYMAXIO (64*1024) /* max i/o size + 1 */
35: char *cybuf;
36:
37: /* for byte swapping Multibus values */
38: #define htoms(x) (u_short)((((x)>>8)&0xff) | (((x)<<8)&0xff00))
39:
40: #define b_repcnt b_bcount
41: #define b_command b_resid
42:
43: /*
44: * System configuration pointer.
45: * Memory address is jumpered on controller.
46: */
47: struct cyscp {
48: char csp_buswidth; /* system bus width */
49: #define CSP_16BITS 1 /* 16-bit system bus */
50: #define CSP_8BITS 0 /* 8-bit system bus */
51: char csp_unused;
52: u_char csp_scb[4]; /* point to system config block */
53: };
54:
55: /*
56: * System configuration block
57: */
58: struct cyscb {
59: char csb_fixed; /* fixed value code (must be 3) */
60: char csb_unused; /* unused */
61: u_char csb_ccb[4]; /* pointer to channel control block */
62: };
63:
64: #define CSB_FIXED 0x3
65:
66: /*
67: * Channel control block definitions
68: */
69: struct cyccb {
70: char cbcw; /* channel control word */
71: char cbgate; /* tpb access gate */
72: u_char cbtpb[4]; /* first tape parameter block */
73: };
74:
75: #define GATE_OPEN (char)(0x00)
76: #define GATE_CLOSED (char)(0xff)
77:
78: #define CY_GO(addr) movob((addr), 0xff) /* channel attention */
79: #define CY_RESET(addr) movob((addr)+1, 0xff) /* software controller reset */
80:
81: #define CBCW_IE 0x11 /* interrupt on cmd completion */
82: #define CBCW_CLRINT 0x09 /* clear active interrupt */
83:
84: /*
85: * Tape parameter block definitions
86: */
87: struct cytpb {
88: u_long tpcmd; /* command, see below */
89: u_short tpcontrol; /* control word */
90: u_short tpcount; /* return count */
91: u_short tpsize; /* buffer size */
92: u_short tprec; /* records/overrun */
93: u_char tpdata[4]; /* pointer to source/dest */
94: u_short tpstatus; /* status */
95: u_char tplink[4]; /* pointer to next parameter block */
96: };
97:
98: /* control field bit definitions */
99: #define CYCW_UNIT (0x000c<<8) /* unit select mask, 2 bit field */
100: #define CYCW_IE (0x0020<<8) /* interrupt enable */
101: #define CYCW_LOCK (0x0080<<8) /* bus lock flag */
102: #define CYCW_REV (0x0400>>8) /* reverse flag */
103: #define CYCW_SPEED (0x0800>>8) /* speed/density */
104: #define CYCW_25IPS 0
105: #define CYCW_100IPS (0x0800>>8)
106: #define CYCW_WIDTH (0x8000>>8) /* width */
107: #define CYCW_8BITS 0
108: #define CYCW_16BITS (0x8000>>8)
109:
110: #define CYCW_BITS "\20\3REV\005100IPS\00716BITS\16IE\20LOCK"
111:
112: /*
113: * Controller commands
114: */
115:
116: /* control status/commands */
117: #define CY_CONFIG (0x00<<24) /* configure */
118: #define CY_NOP (0x20<<24) /* no operation */
119: #define CY_SETPAGE (0x08<<24) /* set page (addr bits 20-23) */
120: #define CY_SENSE (0x28<<24) /* drive status */
121: #define CY_CLRINT (0x9c<<24) /* clear Multibus interrupt */
122:
123: /* tape position commands */
124: #define CY_REW (0x34<<24) /* rewind tape */
125: #define CY_OFFL (0x38<<24) /* off_line and unload */
126: #define CY_WEOF (0x40<<24) /* write end-of-file mark */
127: #define CY_SFORW (0x70<<24) /* space record forward */
128: #define CY_SREV (CY_SFORW|CYCW_REV) /* space record backwards */
129: #define CY_FSF (0x44<<24) /* space file forward */
130: #define CY_BSF (CY_FSF|CYCW_REV) /* space file backwards */
131: #define CY_ERASE (0x4c<<24) /* erase record */
132:
133: /* data transfer commands */
134: #define CY_BRCOM (0x10<<24) /* read buffered */
135: #define CY_BWCOM (0x14<<24) /* write buffered */
136: #define CY_RCOM (0x2c<<24) /* read tape unbuffered */
137: #define CY_WCOM (0x30<<24) /* write tape unbuffered */
138:
139: /* status field bit definitions */
140: #define CYS_WP (0x0002<<8) /* write protected, no write ring */
141: #define CYS_BSY (0x0004<<8) /* formatter busy */
142: #define CYS_RDY (0x0008<<8) /* drive ready */
143: #define CYS_EOT (0x0010<<8) /* end of tape detected */
144: #define CYS_BOT (0x0020<<8) /* tape is at load point */
145: #define CYS_OL (0x0040<<8) /* drive on_line */
146: #define CYS_FM (0x0080<<8) /* filemark detected */
147: #define CYS_ERR (0x1f00>>8) /* error value mask */
148: #define CYS_CR (0x2000>>8) /* controller executed retries */
149: #define CYS_CC (0x4000>>8) /* command completed successfully */
150: #define CYS_CE (0x8000>>8) /* command execution has begun */
151:
152: #define CYS_BITS "\20\6CR\7CC\10CE\12WP\13BSY\14RDY\15EOT/BOT\16BOT\17OL\20FM"
153:
154: /* error codes for CYS_ERR */
155: #define CYER_TIMOUT 0x01 /* timed out data busy false */
156: #define CYER_TIMOUT1 0x02 /* data busy false,formatter,ready */
157: #define CYER_TIMOUT2 0x03 /* time out ready busy false */
158: #define CYER_TIMOUT3 0x04 /* time out ready busy true */
159: #define CYER_TIMOUT4 0x05 /* time out data busy true */
160: #define CYER_NXM 0x06 /* time out memory */
161: #define CYER_BLANK 0x07 /* blank tape */
162: #define CYER_DIAG 0x08 /* micro-diagnostic */
163: #define CYER_EOT 0x09 /* EOT forward, BOT rev. */
164: #define CYER_BOT 0x09 /* EOT forward, BOT rev. */
165: #define CYER_HERR 0x0a /* retry unsuccessful */
166: #define CYER_FIFO 0x0b /* FIFO over/under flow */
167: #define CYER_PARITY 0x0d /* drive to tapemaster parity error */
168: #define CYER_CKSUM 0x0e /* prom checksum */
169: #define CYER_STROBE 0x0f /* time out tape strobe */
170: #define CYER_NOTRDY 0x10 /* tape not ready */
171: #define CYER_PROT 0x11 /* write, no enable ring */
172: #define CYER_JUMPER 0x13 /* missing diagnostic jumper */
173: #define CYER_LINK 0x14 /* bad link, link inappropriate */
174: #define CYER_FM 0x15 /* unexpected filemark */
175: #define CYER_PARAM 0x16 /* bad parameter, byte count ? */
176: #define CYER_HDWERR 0x18 /* unidentified hardware error */
177: #define CYER_NOSTRM 0x19 /* streaming terminated */
178:
179: #ifdef CYERROR
180: char *cyerror[] = {
181: "no error",
182: "timeout",
183: "timeout1",
184: "timeout2",
185: "timeout3",
186: "timeout4",
187: "non-existent memory",
188: "blank tape",
189: "micro-diagnostic",
190: "eot/bot detected",
191: "retry unsuccessful",
192: "fifo over/under-flow",
193: "#0xc",
194: "drive to controller parity error",
195: "prom checksum",
196: "time out tape strobe (record length error)",
197: "tape not ready",
198: "write protected",
199: "#0x12",
200: "missing diagnostic jumper",
201: "invalid link pointer",
202: "unexpected file mark",
203: "invalid byte count/parameter",
204: "#0x17",
205: "unidentified hardware error",
206: "streaming terminated"
207: };
208: #define NCYERROR (sizeof (cyerror) / sizeof (cyerror[0]))
209: #endif
210:
211: /*
212: * Masks defining hard and soft errors (must check against 1<<CYER_code).
213: */
214: #define CYMASK(e) (1 << (e))
215: #define CYER_HARD (CYMASK(CYER_TIMOUT)|CYMASK(CYER_TIMOUT1)|\
216: CYMASK(CYER_TIMOUT2)|CYMASK(CYER_TIMOUT3)|CYMASK(CYER_TIMOUT4)|\
217: CYMASK(CYER_NXM)|CYMASK(CYER_DIAG)|CYMASK(CYER_JUMPER)|\
218: CYMASK(CYER_STROBE)|CYMASK(CYER_PROT)|CYMASK(CYER_CKSUM)|\
219: CYMASK(CYER_HERR)|CYMASK(CYER_BLANK))
220: #define CYER_RSOFT (CYMASK(CYER_FIFO)|CYMASK(CYER_NOTRDY)|\
221: CYMASK(CYER_PARITY))
222: #define CYER_WSOFT (CYMASK(CYER_HERR)|CYMASK(CYER_FIFO)|\
223: CYMASK(CYER_NOTRDY)|CYMASK(CYER_PARITY))
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