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Diffstat (limited to 'sys/arch/vax/include/rsp.h')
| -rw-r--r-- | sys/arch/vax/include/rsp.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/sys/arch/vax/include/rsp.h b/sys/arch/vax/include/rsp.h new file mode 100644 index 00000000000..5822f4bf780 --- /dev/null +++ b/sys/arch/vax/include/rsp.h @@ -0,0 +1,89 @@ +/* $NetBSD: rsp.h,v 1.1 1996/02/17 18:14:50 ragge Exp $ */ +/* + * Copyright (c) 1995 Ludd, University of Lule}, Sweden. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed at Ludd, University of + * Lule}, Sweden and its contributors. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + + +/* + * The Radial Serial Protocol (RSP) that TU58 (DECtape II) uses + * is a strange animal that is sent over serial lines. + * Most packet types can match the struct rsp, but some can't (i.e. + * data packets). + * More about RSP can be read in Digital Peripherals Handbook, p. 92. + */ + +struct rsp { + char rsp_typ; /* Packet type */ + char rsp_sz; /* Packet size */ + char rsp_op; /* Operation */ + char rsp_mod; /* Modifier */ + char rsp_drv; /* Tape drive number */ + char rsp_sw; /* Switches */ + char rsp_xx1; /* Unused, always zero */ + char rsp_xx2; /* Unused, always zero */ + short rsp_cnt; /* Byte count to transfer */ + short rsp_blk; /* Block number */ + short rsp_sum; /* Checksum of packet */ +}; + +/* Types of packets */ +#define RSP_TYP_DATA 001 /* DATA packet */ +#define RSP_TYP_COMMAND 002 /* COMMAND packet */ +#define RSP_TYP_INIT 004 /* INITIALIZE packet */ +#define RSP_TYP_BOOT 010 /* BOOTSTRAP packet (PDP11) */ +#define RSP_TYP_CONTINUE 020 /* CONTINUE packet */ +#define RSP_TYP_XOFF 023 /* XOFF packet */ + +/* Operation types */ +#define RSP_OP_NOP 000 /* No operation */ +#define RSP_OP_RESET 001 /* Reset */ +#define RSP_OP_READ 002 /* Read data */ +#define RSP_OP_WRITE 003 /* Write data */ +#define RSP_OP_POS 005 /* Position tape */ +#define RSP_OP_DIAG 007 /* internal diagnose */ +#define RSP_OP_GSTAT 010 /* Get status */ +#define RSP_OP_SSTAT 011 /* Set status */ +#define RSP_OP_END 100 /* End packet */ + +/* Modifier */ +#define RSP_MOD_VERIFY 001 /* Verify read data */ +#define RSP_MOD_OK 000 /* Success */ +#define RSP_MOD_RETR 001 /* Success w/ retries */ +#define RSP_MOD_FAIL -1 /* Failed self-test */ +#define RSP_MOD_PART -2 /* Partial operation */ +#define RSP_MOD_NET -8 /* Non-existent tape drive */ +#define RSP_MOD_NOC -9 /* No cartridge */ +#define RSP_MOD_WP -11 /* Write protected */ +#define RSP_MOD_DERR -17 /* Data error */ +#define RSP_MOD_SERR -32 /* Seek error */ +#define RSP_MOD_STOP -33 /* Motor stopped */ +#define RSP_MOD_INVAL -48 /* Invalid opcode */ +#define RSP_MOD_INVBLK -55 /* Invalid bloch number */ + |