Annotation of sys/arch/vax/include/rsp.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: rsp.h,v 1.2 1997/05/29 00:04:50 niklas Exp $ */
2: /* $NetBSD: rsp.h,v 1.1 1996/02/17 18:14:50 ragge Exp $ */
3: /*
4: * Copyright (c) 1995 Ludd, University of Lule}, Sweden.
5: * All rights reserved.
6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: * 1. Redistributions of source code must retain the above copyright
11: * notice, this list of conditions and the following disclaimer.
12: * 2. Redistributions in binary form must reproduce the above copyright
13: * notice, this list of conditions and the following disclaimer in the
14: * documentation and/or other materials provided with the distribution.
15: * 3. All advertising materials mentioning features or use of this software
16: * must display the following acknowledgement:
17: * This product includes software developed at Ludd, University of
18: * Lule}, Sweden and its contributors.
19: * 4. The name of the author may not be used to endorse or promote products
20: * derived from this software without specific prior written permission
21: *
22: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32: */
33:
34:
35: /*
36: * The Radial Serial Protocol (RSP) that TU58 (DECtape II) uses
37: * is a strange animal that is sent over serial lines.
38: * Most packet types can match the struct rsp, but some can't (i.e.
39: * data packets).
40: * More about RSP can be read in Digital Peripherals Handbook, p. 92.
41: */
42:
43: struct rsp {
44: char rsp_typ; /* Packet type */
45: char rsp_sz; /* Packet size */
46: char rsp_op; /* Operation */
47: char rsp_mod; /* Modifier */
48: char rsp_drv; /* Tape drive number */
49: char rsp_sw; /* Switches */
50: char rsp_xx1; /* Unused, always zero */
51: char rsp_xx2; /* Unused, always zero */
52: short rsp_cnt; /* Byte count to transfer */
53: short rsp_blk; /* Block number */
54: short rsp_sum; /* Checksum of packet */
55: };
56:
57: /* Types of packets */
58: #define RSP_TYP_DATA 001 /* DATA packet */
59: #define RSP_TYP_COMMAND 002 /* COMMAND packet */
60: #define RSP_TYP_INIT 004 /* INITIALIZE packet */
61: #define RSP_TYP_BOOT 010 /* BOOTSTRAP packet (PDP11) */
62: #define RSP_TYP_CONTINUE 020 /* CONTINUE packet */
63: #define RSP_TYP_XOFF 023 /* XOFF packet */
64:
65: /* Operation types */
66: #define RSP_OP_NOP 000 /* No operation */
67: #define RSP_OP_RESET 001 /* Reset */
68: #define RSP_OP_READ 002 /* Read data */
69: #define RSP_OP_WRITE 003 /* Write data */
70: #define RSP_OP_POS 005 /* Position tape */
71: #define RSP_OP_DIAG 007 /* internal diagnose */
72: #define RSP_OP_GSTAT 010 /* Get status */
73: #define RSP_OP_SSTAT 011 /* Set status */
74: #define RSP_OP_END 100 /* End packet */
75:
76: /* Modifier */
77: #define RSP_MOD_VERIFY 001 /* Verify read data */
78: #define RSP_MOD_OK 000 /* Success */
79: #define RSP_MOD_RETR 001 /* Success w/ retries */
80: #define RSP_MOD_FAIL -1 /* Failed self-test */
81: #define RSP_MOD_PART -2 /* Partial operation */
82: #define RSP_MOD_NET -8 /* Non-existent tape drive */
83: #define RSP_MOD_NOC -9 /* No cartridge */
84: #define RSP_MOD_WP -11 /* Write protected */
85: #define RSP_MOD_DERR -17 /* Data error */
86: #define RSP_MOD_SERR -32 /* Seek error */
87: #define RSP_MOD_STOP -33 /* Motor stopped */
88: #define RSP_MOD_INVAL -48 /* Invalid opcode */
89: #define RSP_MOD_INVBLK -55 /* Invalid bloch number */
90:
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