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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 and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: *
36: * @(#)cyreg.h 7.8 (Berkeley) 6/28/90
37: */
38:
39: /*
40: * Tapemaster controller definitions.
41: */
42:
43: /*
44: * With 20-bit addressing, the intermediate buffer
45: * must be allocated early in startup().
46: */
47: #define CYMAXIO (64*1024) /* max i/o size + 1 */
48: char *cybuf;
49:
50: /* for byte swapping Multibus values */
51: #define htoms(x) (u_short)((((x)>>8)&0xff) | (((x)<<8)&0xff00))
52:
53: #define b_repcnt b_bcount
54: #define b_command b_resid
55:
56: /*
57: * System configuration pointer.
58: * Memory address is jumpered on controller.
59: */
60: struct cyscp {
61: char csp_buswidth; /* system bus width */
62: #define CSP_16BITS 1 /* 16-bit system bus */
63: #define CSP_8BITS 0 /* 8-bit system bus */
64: char csp_unused;
65: u_char csp_scb[4]; /* point to system config block */
66: };
67:
68: /*
69: * System configuration block
70: */
71: struct cyscb {
72: char csb_fixed; /* fixed value code (must be 3) */
73: char csb_unused; /* unused */
74: u_char csb_ccb[4]; /* pointer to channel control block */
75: };
76:
77: #define CSB_FIXED 0x3
78:
79: /*
80: * Channel control block definitions
81: */
82: struct cyccb {
83: char cbcw; /* channel control word */
84: char cbgate; /* tpb access gate */
85: u_char cbtpb[4]; /* first tape parameter block */
86: };
87:
88: #define GATE_OPEN (char)(0x00)
89: #define GATE_CLOSED (char)(0xff)
90:
91: #define CY_GO(addr) movob((addr), 0xff) /* channel attention */
92: #define CY_RESET(addr) movob((addr)+1, 0xff) /* software controller reset */
93:
94: #define CBCW_IE 0x11 /* interrupt on cmd completion */
95: #define CBCW_CLRINT 0x09 /* clear active interrupt */
96:
97: /*
98: * Tape parameter block definitions
99: */
100: struct cytpb {
101: u_long tpcmd; /* command, see below */
102: u_short tpcontrol; /* control word */
103: u_short tpcount; /* return count */
104: u_short tpsize; /* buffer size */
105: u_short tprec; /* records/overrun */
106: u_char tpdata[4]; /* pointer to source/dest */
107: u_short tpstatus; /* status */
108: u_char tplink[4]; /* pointer to next parameter block */
109: };
110:
111: /* control field bit definitions */
112: #define CYCW_UNIT (0x000c<<8) /* unit select mask, 2 bit field */
113: #define CYCW_IE (0x0020<<8) /* interrupt enable */
114: #define CYCW_LOCK (0x0080<<8) /* bus lock flag */
115: #define CYCW_REV (0x0400>>8) /* reverse flag */
116: #define CYCW_SPEED (0x0800>>8) /* speed/density */
117: #define CYCW_25IPS 0
118: #define CYCW_100IPS (0x0800>>8)
119: #define CYCW_WIDTH (0x8000>>8) /* width */
120: #define CYCW_8BITS 0
121: #define CYCW_16BITS (0x8000>>8)
122:
123: #define CYCW_BITS "\20\3REV\005100IPS\00716BITS\16IE\20LOCK"
124:
125: /*
126: * Controller commands
127: */
128:
129: /* control status/commands */
130: #define CY_CONFIG (0x00<<24) /* configure */
131: #define CY_NOP (0x20<<24) /* no operation */
132: #define CY_SETPAGE (0x08<<24) /* set page (addr bits 20-23) */
133: #define CY_SENSE (0x28<<24) /* drive status */
134: #define CY_CLRINT (0x9c<<24) /* clear Multibus interrupt */
135:
136: /* tape position commands */
137: #define CY_REW (0x34<<24) /* rewind tape */
138: #define CY_OFFL (0x38<<24) /* off_line and unload */
139: #define CY_WEOF (0x40<<24) /* write end-of-file mark */
140: #define CY_SFORW (0x70<<24) /* space record forward */
141: #define CY_SREV (CY_SFORW|CYCW_REV) /* space record backwards */
142: #define CY_FSF (0x44<<24) /* space file forward */
143: #define CY_BSF (CY_FSF|CYCW_REV) /* space file backwards */
144: #define CY_ERASE (0x4c<<24) /* erase record */
145:
146: /* data transfer commands */
147: #define CY_BRCOM (0x10<<24) /* read buffered */
148: #define CY_BWCOM (0x14<<24) /* write buffered */
149: #define CY_RCOM (0x2c<<24) /* read tape unbuffered */
150: #define CY_WCOM (0x30<<24) /* write tape unbuffered */
151:
152: /* status field bit definitions */
153: #define CYS_WP (0x0002<<8) /* write protected, no write ring */
154: #define CYS_BSY (0x0004<<8) /* formatter busy */
155: #define CYS_RDY (0x0008<<8) /* drive ready */
156: #define CYS_EOT (0x0010<<8) /* end of tape detected */
157: #define CYS_BOT (0x0020<<8) /* tape is at load point */
158: #define CYS_OL (0x0040<<8) /* drive on_line */
159: #define CYS_FM (0x0080<<8) /* filemark detected */
160: #define CYS_ERR (0x1f00>>8) /* error value mask */
161: #define CYS_CR (0x2000>>8) /* controller executed retries */
162: #define CYS_CC (0x4000>>8) /* command completed successfully */
163: #define CYS_CE (0x8000>>8) /* command execution has begun */
164:
165: #define CYS_BITS "\20\6CR\7CC\10CE\12WP\13BSY\14RDY\15EOT/BOT\16BOT\17OL\20FM"
166:
167: /* error codes for CYS_ERR */
168: #define CYER_TIMOUT 0x01 /* timed out data busy false */
169: #define CYER_TIMOUT1 0x02 /* data busy false,formatter,ready */
170: #define CYER_TIMOUT2 0x03 /* time out ready busy false */
171: #define CYER_TIMOUT3 0x04 /* time out ready busy true */
172: #define CYER_TIMOUT4 0x05 /* time out data busy true */
173: #define CYER_NXM 0x06 /* time out memory */
174: #define CYER_BLANK 0x07 /* blank tape */
175: #define CYER_DIAG 0x08 /* micro-diagnostic */
176: #define CYER_EOT 0x09 /* EOT forward, BOT rev. */
177: #define CYER_BOT 0x09 /* EOT forward, BOT rev. */
178: #define CYER_HERR 0x0a /* retry unsuccessful */
179: #define CYER_FIFO 0x0b /* FIFO over/under flow */
180: #define CYER_PARITY 0x0d /* drive to tapemaster parity error */
181: #define CYER_CKSUM 0x0e /* prom checksum */
182: #define CYER_STROBE 0x0f /* time out tape strobe */
183: #define CYER_NOTRDY 0x10 /* tape not ready */
184: #define CYER_PROT 0x11 /* write, no enable ring */
185: #define CYER_JUMPER 0x13 /* missing diagnostic jumper */
186: #define CYER_LINK 0x14 /* bad link, link inappropriate */
187: #define CYER_FM 0x15 /* unexpected filemark */
188: #define CYER_PARAM 0x16 /* bad parameter, byte count ? */
189: #define CYER_HDWERR 0x18 /* unidentified hardware error */
190: #define CYER_NOSTRM 0x19 /* streaming terminated */
191:
192: #ifdef CYERROR
193: char *cyerror[] = {
194: "no error",
195: "timeout",
196: "timeout1",
197: "timeout2",
198: "timeout3",
199: "timeout4",
200: "non-existent memory",
201: "blank tape",
202: "micro-diagnostic",
203: "eot/bot detected",
204: "retry unsuccessful",
205: "fifo over/under-flow",
206: "#0xc",
207: "drive to controller parity error",
208: "prom checksum",
209: "time out tape strobe (record length error)",
210: "tape not ready",
211: "write protected",
212: "#0x12",
213: "missing diagnostic jumper",
214: "invalid link pointer",
215: "unexpected file mark",
216: "invalid byte count/parameter",
217: "#0x17",
218: "unidentified hardware error",
219: "streaming terminated"
220: };
221: #define NCYERROR (sizeof (cyerror) / sizeof (cyerror[0]))
222: #endif
223:
224: /*
225: * Masks defining hard and soft errors (must check against 1<<CYER_code).
226: */
227: #define CYMASK(e) (1 << (e))
228: #define CYER_HARD (CYMASK(CYER_TIMOUT)|CYMASK(CYER_TIMOUT1)|\
229: CYMASK(CYER_TIMOUT2)|CYMASK(CYER_TIMOUT3)|CYMASK(CYER_TIMOUT4)|\
230: CYMASK(CYER_NXM)|CYMASK(CYER_DIAG)|CYMASK(CYER_JUMPER)|\
231: CYMASK(CYER_STROBE)|CYMASK(CYER_PROT)|CYMASK(CYER_CKSUM)|\
232: CYMASK(CYER_HERR)|CYMASK(CYER_BLANK))
233: #define CYER_RSOFT (CYMASK(CYER_FIFO)|CYMASK(CYER_NOTRDY)|\
234: CYMASK(CYER_PARITY))
235: #define CYER_WSOFT (CYMASK(CYER_HERR)|CYMASK(CYER_FIFO)|\
236: CYMASK(CYER_NOTRDY)|CYMASK(CYER_PARITY))
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