-/* <sys/mtio.h> magnetic tape commands Author: Kees J. Bot
+/* $NetBSD: mtio.h,v 1.23 2005/12/26 18:41:36 perry Exp $ */
+
+/*
+ * 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.
+ * 3. 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
*/
-#ifndef _SYS__MTIO_H
-#define _SYS__MTIO_H
+#ifndef _SYS_MTIO_H_
+#define _SYS_MTIO_H_
-/* Tape operations: ioctl(fd, MTIOCTOP, &struct mtop) */
+/*
+ * Structures and definitions for mag tape io control commands
+ */
+/* structure for MTIOCTOP - mag tape op command */
struct mtop {
- short mt_op; /* Operation (MTWEOF, etc.) */
- int mt_count; /* Repeat count. */
+ short mt_op; /* operations defined below */
+ int32_t mt_count; /* how many of them */
};
-#define MTWEOF 0 /* Write End-Of-File Marker */
-#define MTFSF 1 /* Forward Space File mark */
-#define MTBSF 2 /* Backward Space File mark */
-#define MTFSR 3 /* Forward Space Record */
-#define MTBSR 4 /* Backward Space Record */
-#define MTREW 5 /* Rewind tape */
-#define MTOFFL 6 /* Rewind and take Offline */
-#define MTNOP 7 /* No-Operation, set status only */
-#define MTRETEN 8 /* Retension (completely wind and rewind) */
-#define MTERASE 9 /* Erase the tape and rewind */
-#define MTEOM 10 /* Position at End-Of-Media */
-#define MTMODE 11 /* Select tape density */
-#define MTBLKZ 12 /* Select tape block size */
-
-/* Tape status: ioctl(fd, MTIOCGET, &struct mtget) */
+/* 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 MTRETEN 8 /* retension */
+#define MTERASE 9 /* erase entire tape */
+#define MTEOM 10 /* forward to end of media */
+#define MTNBSF 11 /* backward space to beginning of file */
+#define MTCACHE 12 /* enable controller cache */
+#define MTNOCACHE 13 /* disable controller cache */
+#define MTSETBSIZ 14 /* set block size; 0 for variable */
+#define MTSETDNSTY 15 /* set density code for current mode */
+#define MTCMPRESS 16 /* set/clear device compression */
+#define MTEWARN 17 /* set/clear early warning behaviour */
+
+/* structure for MTIOCGET - mag tape get status command */
struct mtget {
- short mt_type; /* Type of tape device. */
-
- /* Device dependent "registers". */
- short mt_dsreg; /* Drive status register. */
- short mt_erreg; /* Error register. */
- short dummy; /* (alignment) */
-
- /* Misc info. */
- off_t mt_resid; /* Residual count. */
- off_t mt_fileno; /* Current File Number. */
- off_t mt_blkno; /* Current Block Number within file. */
- off_t mt_blksize; /* Current block size. */
+ 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 */
+ short mt_resid; /* residual count */
+/* the following two are not yet implemented by most tape drivers */
+ int32_t mt_fileno; /* file number of current position */
+ int32_t mt_blkno; /* block number of current position */
+/* end not yet implemented */
+ int32_t mt_blksiz; /* current block size */
+ int32_t mt_density; /* current density code */
+ int32_t mt_mblksiz[4]; /* block size for different modes */
+ int32_t mt_mdensity[4]; /* density codes for different modes */
};
-#endif /* _SYS__MTIO_H */
+/*
+ * 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 - Also "GENERIC SCSI" */
+#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_ISWANGTEK 0x11 /* WANGTEK 5150ES */
+#define MT_ISCALIPER 0x12 /* Caliper CP150 */
+#define MT_ISWTEK5099 0x13 /* WANGTEK 5099ES */
+#define MT_ISVIPER2525 0x14 /* Archive Viper 2525 */
+#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 */
+
+/* bits defined for the mt_dsreg field */
+#define MT_DS_RDONLY 0x10 /* tape mounted readonly */
+#define MT_DS_MOUNTED 0x03 /* tape mounted (for control opens) */
+
+/*
+ * For the mt_erreg field.....This is supposed to be a *generic*
+ * MT interface, so we cannot overload it with SCSI specific entities,
+ * (like ASC/ASCQ) nor is there enough room to put all the information
+ * in that is desirable. This whole structure should be redone.
+ *
+ * In the interim, this will be considered device-specific. For SCSI,
+ * this will be taken to mean the last Sense Key seen. It is not
+ * guaranteed to always be sensibly associated with any command.
+ */
+
+/*
+ * The action of a MTIOCGET command clears mt_dsreg, mt_erreg, and mt_resid
+ */
+
+/* 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 */
+#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, uint32_t) /* get logical blk addr */
+#define MTIOCRDHPOS _IOR('m', 6, uint32_t) /* get hardware blk addr */
+#define MTIOCSLOCATE _IOW('m', 5, uint32_t) /* seek to logical blk addr */
+#define MTIOCHLOCATE _IOW('m', 6, uint32_t) /* seek to hardware blk addr */
+
+#ifdef _KERNEL
+/*
+ * minor device number
+ */
+
+#define T_UNIT 003 /* unit selection */
+#define T_NOREWIND 004 /* no rewind on close */
+#define T_DENSEL 030 /* density select */
+#define T_800BPI 000 /* select 800 bpi */
+#define T_1600BPI 010 /* select 1600 bpi */
+#define T_6250BPI 020 /* select 6250 bpi */
+#define T_BADBPI 030 /* undefined selection */
+#endif /* _KERNEL */
+
+#endif /* !_SYS_MTIO_H_ */