--- /dev/null
+/*-
+ * Copyright (c) 1982, 1986, 1993
+ * The Regents of the University of California. 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.
+ * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
+ *
+ * @(#)mtio.h 8.1 (Berkeley) 6/2/93
+ * $FreeBSD: stable/7/sys/sys/mtio.h 139825 2005-01-07 02:29:27Z imp $
+ */
+
+#ifndef _SYS_MTIO_H_
+#define _SYS_MTIO_H_
+
+#ifndef _KERNEL
+#include <sys/types.h>
+#endif
+#include <sys/ioccom.h>
+
+/*
+ * Structures and definitions for mag tape io control commands
+ */
+
+/* structure for MTIOCTOP - mag tape op command */
+struct mtop {
+ short mt_op; /* operations defined below */
+ int32_t mt_count; /* how many of them */
+};
+
+/* operations */
+#define MTWEOF 0 /* write an end-of-file record */
+#define MTFSF 1 /* forward space file */
+#define MTBSF 2 /* backward space file */
+#define MTFSR 3 /* forward space record */
+#define MTBSR 4 /* backward space record */
+#define MTREW 5 /* rewind */
+#define MTOFFL 6 /* rewind and put the drive offline */
+#define MTNOP 7 /* no operation, sets status only */
+#define MTCACHE 8 /* enable controller cache */
+#define MTNOCACHE 9 /* disable controller cache */
+
+#if defined(__FreeBSD__)
+/* Set block size for device. If device is a variable size dev */
+/* a non zero parameter will change the device to a fixed block size */
+/* device with block size set to that of the parameter passed in. */
+/* Resetting the block size to 0 will restore the device to a variable */
+/* block size device. */
+
+#define MTSETBSIZ 10
+
+/* Set density values for device. Sets the value for the opened mode only. */
+
+#define MTSETDNSTY 11
+
+#define MTERASE 12 /* erase to EOM */
+#define MTEOD 13 /* Space to EOM */
+#define MTCOMP 14 /* select compression mode 0=off, 1=def */
+#define MTRETENS 15 /* re-tension tape */
+#define MTWSS 16 /* write setmark(s) */
+#define MTFSS 17 /* forward space setmark */
+#define MTBSS 18 /* backward space setmark */
+
+#define MT_COMP_ENABLE 0xffffffff
+#define MT_COMP_DISABLED 0xfffffffe
+#define MT_COMP_UNSUPP 0xfffffffd
+
+/*
+ * Values in mt_dsreg that say what the device is doing
+ */
+#define MTIO_DSREG_NIL 0 /* Unknown */
+#define MTIO_DSREG_REST 1 /* Doing Nothing */
+#define MTIO_DSREG_RBSY 2 /* Communicating with tape (but no motion) */
+#define MTIO_DSREG_WR 20 /* Writing */
+#define MTIO_DSREG_FMK 21 /* Writing Filemarks */
+#define MTIO_DSREG_ZER 22 /* Erasing */
+#define MTIO_DSREG_RD 30 /* Reading */
+#define MTIO_DSREG_FWD 40 /* Spacing Forward */
+#define MTIO_DSREG_REV 41 /* Spacing Reverse */
+#define MTIO_DSREG_POS 42 /* Hardware Positioning (direction unknown) */
+#define MTIO_DSREG_REW 43 /* Rewinding */
+#define MTIO_DSREG_TEN 44 /* Retensioning */
+#define MTIO_DSREG_UNL 45 /* Unloading */
+#define MTIO_DSREG_LD 46 /* Loading */
+
+#endif /* __FreeBSD__ */
+
+/* structure for MTIOCGET - mag tape get status command */
+
+struct mtget {
+ short mt_type; /* type of magtape device */
+/* the following two registers are grossly device dependent */
+ short mt_dsreg; /* ``drive status'' register */
+ short mt_erreg; /* ``error'' register */
+/* end device-dependent registers */
+ /*
+ * Note that the residual count, while maintained, may be
+ * be nonsense because the size of the residual may (greatly)
+ * exceed 32 K-bytes. Use the MTIOCERRSTAT ioctl to get a
+ * more accurate count.
+ */
+ short mt_resid; /* residual count */
+#if defined (__FreeBSD__)
+ int32_t mt_blksiz; /* presently operating blocksize */
+ int32_t mt_density; /* presently operating density */
+ u_int32_t mt_comp; /* presently operating compression */
+ int32_t mt_blksiz0; /* blocksize for mode 0 */
+ int32_t mt_blksiz1; /* blocksize for mode 1 */
+ int32_t mt_blksiz2; /* blocksize for mode 2 */
+ int32_t mt_blksiz3; /* blocksize for mode 3 */
+ int32_t mt_density0; /* density for mode 0 */
+ int32_t mt_density1; /* density for mode 1 */
+ int32_t mt_density2; /* density for mode 2 */
+ int32_t mt_density3; /* density for mode 3 */
+/* the following are not yet implemented */
+ u_int32_t mt_comp0; /* compression type for mode 0 */
+ u_int32_t mt_comp1; /* compression type for mode 1 */
+ u_int32_t mt_comp2; /* compression type for mode 2 */
+ u_int32_t mt_comp3; /* compression type for mode 3 */
+/* end not yet implemented */
+#endif
+ int32_t mt_fileno; /* relative file number of current position */
+ int32_t mt_blkno; /* relative block number of current position */
+};
+
+/* structure for MTIOCERRSTAT - tape get error status command */
+/* really only supported for SCSI tapes right now */
+struct scsi_tape_errors {
+ /*
+ * These are latched from the last command that had a SCSI
+ * Check Condition noted for these operations. The act
+ * of issuing an MTIOCERRSTAT unlatches and clears them.
+ */
+ u_int8_t io_sense[32]; /* Last Sense Data For Data I/O */
+ int32_t io_resid; /* residual count from last Data I/O */
+ u_int8_t io_cdb[16]; /* Command that Caused the Last Data Sense */
+ u_int8_t ctl_sense[32]; /* Last Sense Data For Control I/O */
+ int32_t ctl_resid; /* residual count from last Control I/O */
+ u_int8_t ctl_cdb[16]; /* Command that Caused the Last Control Sense */
+ /*
+ * These are the read and write cumulative error counters.
+ * (how to reset cumulative error counters is not yet defined).
+ * (not implemented as yet but space is being reserved for them)
+ */
+ struct {
+ u_int32_t retries; /* total # retries performed */
+ u_int32_t corrected; /* total # corrections performed */
+ u_int32_t processed; /* total # corrections successful */
+ u_int32_t failures; /* total # corrections/retries failed */
+ u_int64_t nbytes; /* total # bytes processed */
+ } wterr, rderr;
+};
+
+union mterrstat {
+ struct scsi_tape_errors scsi_errstat;
+ char _reserved_padding[256];
+};
+
+/*
+ * Constants for mt_type byte. These are the same
+ * for controllers compatible with the types listed.
+ */
+#define MT_ISTS 0x01 /* TS-11 */
+#define MT_ISHT 0x02 /* TM03 Massbus: TE16, TU45, TU77 */
+#define MT_ISTM 0x03 /* TM11/TE10 Unibus */
+#define MT_ISMT 0x04 /* TM78/TU78 Massbus */
+#define MT_ISUT 0x05 /* SI TU-45 emulation on Unibus */
+#define MT_ISCPC 0x06 /* SUN */
+#define MT_ISAR 0x07 /* SUN */
+#define MT_ISTMSCP 0x08 /* DEC TMSCP protocol (TU81, TK50) */
+#define MT_ISCY 0x09 /* CCI Cipher */
+#define MT_ISCT 0x0a /* HP 1/4 tape */
+#define MT_ISFHP 0x0b /* HP 7980 1/2 tape */
+#define MT_ISEXABYTE 0x0c /* Exabyte */
+#define MT_ISEXA8200 0x0c /* Exabyte EXB-8200 */
+#define MT_ISEXA8500 0x0d /* Exabyte EXB-8500 */
+#define MT_ISVIPER1 0x0e /* Archive Viper-150 */
+#define MT_ISPYTHON 0x0f /* Archive Python (DAT) */
+#define MT_ISHPDAT 0x10 /* HP 35450A DAT drive */
+#define MT_ISMFOUR 0x11 /* M4 Data 1/2 9track drive */
+#define MT_ISTK50 0x12 /* DEC SCSI TK50 */
+#define MT_ISMT02 0x13 /* Emulex MT02 SCSI tape controller */
+
+/* mag tape io control commands */
+#define MTIOCTOP _IOW('m', 1, struct mtop) /* do a mag tape op */
+#define MTIOCGET _IOR('m', 2, struct mtget) /* get tape status */
+/* these two do not appear to be used anywhere */
+#define MTIOCIEOT _IO('m', 3) /* ignore EOT error */
+#define MTIOCEEOT _IO('m', 4) /* enable EOT error */
+/*
+ * When more SCSI-3 SSC (streaming device) devices are out there
+ * that support the full 32 byte type 2 structure, we'll have to
+ * rethink these ioctls to support all the entities they haul into
+ * the picture (64 bit blocks, logical file record numbers, etc..).
+ */
+#define MTIOCRDSPOS _IOR('m', 5, u_int32_t) /* get logical blk addr */
+#define MTIOCRDHPOS _IOR('m', 6, u_int32_t) /* get hardware blk addr */
+#define MTIOCSLOCATE _IOW('m', 5, u_int32_t) /* seek to logical blk addr */
+#define MTIOCHLOCATE _IOW('m', 6, u_int32_t) /* seek to hardware blk addr */
+#define MTIOCERRSTAT _IOR('m', 7, union mterrstat) /* get tape errors */
+/*
+ * Set EOT model- argument is number of filemarks to end a tape with.
+ * Note that not all possible values will be accepted.
+ */
+#define MTIOCSETEOTMODEL _IOW('m', 8, u_int32_t)
+/* Get current EOT model */
+#define MTIOCGETEOTMODEL _IOR('m', 8, u_int32_t)
+
+#ifndef _KERNEL
+#define DEFTAPE "/dev/nsa0"
+#endif
+
+#endif /* !_SYS_MTIO_H_ */
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