Annotation of sys/arch/vax/include/rsp.h, Revision 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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