/* $NetBSD: scsi_tape.h,v 1.19 2000/02/21 05:11:09 mjacob Exp $ */ /*- * Copyright (c) 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Charles M. Hannum. * * 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 by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 FOUNDATION OR CONTRIBUTORS * 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. */ /* * Originally written by Julian Elischer (julian@tfs.com) * for TRW Financial Systems. * * TRW Financial Systems, in accordance with their agreement with Carnegie * Mellon University, makes this software available to CMU to distribute * or use in any manner that they see fit as long as this message is kept with * the software. For this reason TFS also grants any other persons or * organisations permission to use or modify this software. * * TFS supplies this software to be publicly redistributed * on the understanding that TFS is not responsible for the correct * functioning of this software in any circumstances. * * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 */ /* * SCSI tape interface description */ /* * SCSI command formats */ #define READ 0x08 #define WRITE 0x0a struct scsi_rw_tape { u_int8_t opcode; u_int8_t byte2; #define SRW_FIXED 0x01 u_int8_t len[3]; u_int8_t control; }; #define SPACE 0x11 struct scsi_space { u_int8_t opcode; u_int8_t byte2; #define SS_CODE 0x03 #define SP_BLKS 0x00 #define SP_FILEMARKS 0x01 #define SP_SEQ_FILEMARKS 0x02 #define SP_EOM 0x03 u_int8_t number[3]; u_int8_t control; }; #define WRITE_FILEMARKS 0x10 struct scsi_write_filemarks { u_int8_t opcode; u_int8_t byte2; u_int8_t number[3]; u_int8_t control; }; #define REWIND 0x01 struct scsi_rewind { u_int8_t opcode; u_int8_t byte2; #define SR_IMMED 0x01 u_int8_t unused[3]; u_int8_t control; }; #define LOAD 0x1b struct scsi_load { u_int8_t opcode; u_int8_t byte2; #define SL_IMMED 0x01 u_int8_t unused[2]; u_int8_t how; #define LD_UNLOAD 0x00 #define LD_LOAD 0x01 #define LD_RETENSION 0x02 u_int8_t control; }; #define ERASE 0x19 struct scsi_erase { u_int8_t opcode; u_int8_t byte2; #define SE_LONG 0x01 #define SE_IMMED 0x02 u_int8_t unused[3]; u_int8_t control; }; #define READ_BLOCK_LIMITS 0x05 struct scsi_block_limits { u_int8_t opcode; u_int8_t byte2; u_int8_t unused[3]; u_int8_t control; }; struct scsi_block_limits_data { u_int8_t reserved; u_int8_t max_length[3]; /* Most significant */ u_int8_t min_length[2]; /* Most significant */ }; /* See SCSI-II spec 9.3.3.1 */ struct scsi_tape_dev_conf_page { u_int8_t pagecode; /* 0x10 */ u_int8_t pagelength; /* 0x0e */ u_int8_t byte2; #define SMT_CAP 0x40 /* change active partition */ #define SMT_CAF 0x20 /* change active format */ #define SMT_AFMASK 0x1f /* active format mask */ u_int8_t active_partition; u_int8_t wb_full_ratio; u_int8_t rb_empty_ratio; u_int8_t wrdelay_time[2]; u_int8_t byte8; #define SMT_DBR 0x80 /* data buffer recovery */ #define SMT_BIS 0x40 /* block identifiers supported */ #define SMT_RSMK 0x20 /* report setmarks */ #define SMT_AVC 0x10 /* automatic velocity control */ #define SMT_SOCF_MASK 0xc0 /* stop on consecutive formats */ #define SMT_RBO 0x20 /* recover buffer order */ #define SMT_REW 0x10 /* report early warning */ u_int8_t gap_size; u_int8_t byte10; #define SMT_EODDEFINED 0xe0 /* EOD defined */ #define SMT_EEG 0x10 /* enable EOD generation */ #define SMT_SEW 0x80 /* synchronize at early warning */ u_int8_t ew_bufsize[3]; u_int8_t sel_comp_alg; #define SMT_COMP_NONE 0x00 #define SMT_COMP_DEFAULT 0x01 u_int8_t reserved; }; /* from SCSI-3: SSC-Rev10 (6/97) */ struct scsi_tape_dev_compression_page { u_int8_t pagecode; /* 0x0f */ u_int8_t pagelength; /* 0x0e */ u_int8_t dce_dcc; #define DCP_DCE 0x80 /* enable compression */ #define DCP_DCC 0x40 /* compression capable */ u_int8_t dde_red; #define DCP_DDE 0x80 /* enable decompression */ /* There's a lot of gup about bits 5,6 for reporting exceptions */ /* in transitions between compressed and uncompressed data- but */ /* mostly we want the default (0), which is to report a MEDIUM */ /* ERROR when a read transitions into data that can't be de- */ /* compressed */ u_int8_t comp_alg[4]; /* compression algorithm */ u_int8_t decomp_alg[4]; /* de-"" */ u_int8_t reserved[4]; }; /* defines for the device specific byte in the mode select/sense header */ #define SMH_DSP_SPEED 0x0F #define SMH_DSP_BUFF_MODE 0x70 #define SMH_DSP_BUFF_MODE_OFF 0x00 #define SMH_DSP_BUFF_MODE_ON 0x10 #define SMH_DSP_BUFF_MODE_MLTI 0x20 #define SMH_DSP_WRITE_PROT 0x80 /* A special for the CIPHER ST150S(old drive) */ struct block_desc_cipher { u_int8_t density; u_int8_t nblocks[3]; u_int8_t reserved; u_int8_t blklen[3]; u_int8_t other; #define ST150_SEC 0x01 /* soft error count */ #define SR150_AUI 0x02 /* autoload inhibit */ }; #define READ_POSITION 0x34 struct scsi_tape_read_position { u_int8_t opcode; /* READ_POSITION */ u_int8_t byte1; /* set LSB to read hardware block pos */ u_int8_t reserved[8]; }; #define LOCATE 0x2B struct scsi_tape_locate { u_int8_t opcode; u_int8_t byte2; u_int8_t reserved1; u_int8_t blkaddr[4]; u_int8_t reserved2; u_int8_t partition; u_int8_t control; }; #define HALFINCH_800 0x01 #define HALFINCH_1600 0x02 #define HALFINCH_6250 0x03 #define QIC_11 0x04 /* from Archive 150S Theory of Op. XXX */ #define QIC_24 0x05 /* may be bad, works for CIPHER ST150S XXX */ #define QIC_120 0x0f #define QIC_150 0x10 #define QIC_320 0x11 #define QIC_525 0x11 #define QIC_1320 0x12 #define DDS 0x13 #define DAT_1 0x13 #define QIC_3095 0x45 #define QIC_3220 0x47