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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/mtio.h
downloadop-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip
op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/linux/mtio.h')
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diff --git a/include/linux/mtio.h b/include/linux/mtio.h
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+/*
+ * linux/mtio.h header file for Linux. Written by H. Bergman
+ *
+ * Modified for special ioctls provided by zftape in September 1997
+ * by C.-J. Heine.
+ */
+
+#ifndef _LINUX_MTIO_H
+#define _LINUX_MTIO_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+#include <linux/qic117.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 */
+ int mt_count; /* how many of them */
+};
+
+/* Magnetic Tape operations [Not all operations supported by all drivers]: */
+#define MTRESET 0 /* +reset drive in case of problems */
+#define MTFSF 1 /* forward space over FileMark,
+ * position at first record of next file
+ */
+#define MTBSF 2 /* backward space FileMark (position before FM) */
+#define MTFSR 3 /* forward space record */
+#define MTBSR 4 /* backward space record */
+#define MTWEOF 5 /* write an end-of-file record (mark) */
+#define MTREW 6 /* rewind */
+#define MTOFFL 7 /* rewind and put the drive offline (eject?) */
+#define MTNOP 8 /* no op, set status only (read with MTIOCGET) */
+#define MTRETEN 9 /* retension tape */
+#define MTBSFM 10 /* +backward space FileMark, position at FM */
+#define MTFSFM 11 /* +forward space FileMark, position at FM */
+#define MTEOM 12 /* goto end of recorded media (for appending files).
+ * MTEOM positions after the last FM, ready for
+ * appending another file.
+ */
+#define MTERASE 13 /* erase tape -- be careful! */
+
+#define MTRAS1 14 /* run self test 1 (nondestructive) */
+#define MTRAS2 15 /* run self test 2 (destructive) */
+#define MTRAS3 16 /* reserved for self test 3 */
+
+#define MTSETBLK 20 /* set block length (SCSI) */
+#define MTSETDENSITY 21 /* set tape density (SCSI) */
+#define MTSEEK 22 /* seek to block (Tandberg, etc.) */
+#define MTTELL 23 /* tell block (Tandberg, etc.) */
+#define MTSETDRVBUFFER 24 /* set the drive buffering according to SCSI-2 */
+ /* ordinary buffered operation with code 1 */
+#define MTFSS 25 /* space forward over setmarks */
+#define MTBSS 26 /* space backward over setmarks */
+#define MTWSM 27 /* write setmarks */
+
+#define MTLOCK 28 /* lock the drive door */
+#define MTUNLOCK 29 /* unlock the drive door */
+#define MTLOAD 30 /* execute the SCSI load command */
+#define MTUNLOAD 31 /* execute the SCSI unload command */
+#define MTCOMPRESSION 32/* control compression with SCSI mode page 15 */
+#define MTSETPART 33 /* Change the active tape partition */
+#define MTMKPART 34 /* Format the tape with one or two partitions */
+
+/* structure for MTIOCGET - mag tape get status command */
+
+struct mtget {
+ long mt_type; /* type of magtape device */
+ long mt_resid; /* residual count: (not sure)
+ * number of bytes ignored, or
+ * number of files not skipped, or
+ * number of records not skipped.
+ */
+ /* the following registers are device dependent */
+ long mt_dsreg; /* status register */
+ long mt_gstat; /* generic (device independent) status */
+ long mt_erreg; /* error register */
+ /* The next two fields are not always used */
+ __kernel_daddr_t mt_fileno; /* number of current file on tape */
+ __kernel_daddr_t mt_blkno; /* current block number */
+};
+
+
+
+/*
+ * Constants for mt_type. Not all of these are supported,
+ * and these are not all of the ones that are supported.
+ */
+#define MT_ISUNKNOWN 0x01
+#define MT_ISQIC02 0x02 /* Generic QIC-02 tape streamer */
+#define MT_ISWT5150 0x03 /* Wangtek 5150EQ, QIC-150, QIC-02 */
+#define MT_ISARCHIVE_5945L2 0x04 /* Archive 5945L-2, QIC-24, QIC-02? */
+#define MT_ISCMSJ500 0x05 /* CMS Jumbo 500 (QIC-02?) */
+#define MT_ISTDC3610 0x06 /* Tandberg 6310, QIC-24 */
+#define MT_ISARCHIVE_VP60I 0x07 /* Archive VP60i, QIC-02 */
+#define MT_ISARCHIVE_2150L 0x08 /* Archive Viper 2150L */
+#define MT_ISARCHIVE_2060L 0x09 /* Archive Viper 2060L */
+#define MT_ISARCHIVESC499 0x0A /* Archive SC-499 QIC-36 controller */
+#define MT_ISQIC02_ALL_FEATURES 0x0F /* Generic QIC-02 with all features */
+#define MT_ISWT5099EEN24 0x11 /* Wangtek 5099-een24, 60MB, QIC-24 */
+#define MT_ISTEAC_MT2ST 0x12 /* Teac MT-2ST 155mb drive, Teac DC-1 card (Wangtek type) */
+#define MT_ISEVEREX_FT40A 0x32 /* Everex FT40A (QIC-40) */
+#define MT_ISDDS1 0x51 /* DDS device without partitions */
+#define MT_ISDDS2 0x52 /* DDS device with partitions */
+#define MT_ISONSTREAM_SC 0x61 /* OnStream SCSI tape drives (SC-x0)
+ and SCSI emulated (DI, DP, USB) */
+#define MT_ISSCSI1 0x71 /* Generic ANSI SCSI-1 tape unit */
+#define MT_ISSCSI2 0x72 /* Generic ANSI SCSI-2 tape unit */
+
+/* QIC-40/80/3010/3020 ftape supported drives.
+ * 20bit vendor ID + 0x800000 (see ftape-vendors.h)
+ */
+#define MT_ISFTAPE_UNKNOWN 0x800000 /* obsolete */
+#define MT_ISFTAPE_FLAG 0x800000
+
+struct mt_tape_info {
+ long t_type; /* device type id (mt_type) */
+ char *t_name; /* descriptive name */
+};
+
+#define MT_TAPE_INFO { \
+ {MT_ISUNKNOWN, "Unknown type of tape device"}, \
+ {MT_ISQIC02, "Generic QIC-02 tape streamer"}, \
+ {MT_ISWT5150, "Wangtek 5150, QIC-150"}, \
+ {MT_ISARCHIVE_5945L2, "Archive 5945L-2"}, \
+ {MT_ISCMSJ500, "CMS Jumbo 500"}, \
+ {MT_ISTDC3610, "Tandberg TDC 3610, QIC-24"}, \
+ {MT_ISARCHIVE_VP60I, "Archive VP60i, QIC-02"}, \
+ {MT_ISARCHIVE_2150L, "Archive Viper 2150L"}, \
+ {MT_ISARCHIVE_2060L, "Archive Viper 2060L"}, \
+ {MT_ISARCHIVESC499, "Archive SC-499 QIC-36 controller"}, \
+ {MT_ISQIC02_ALL_FEATURES, "Generic QIC-02 tape, all features"}, \
+ {MT_ISWT5099EEN24, "Wangtek 5099-een24, 60MB"}, \
+ {MT_ISTEAC_MT2ST, "Teac MT-2ST 155mb data cassette drive"}, \
+ {MT_ISEVEREX_FT40A, "Everex FT40A, QIC-40"}, \
+ {MT_ISONSTREAM_SC, "OnStream SC-, DI-, DP-, or USB tape drive"}, \
+ {MT_ISSCSI1, "Generic SCSI-1 tape"}, \
+ {MT_ISSCSI2, "Generic SCSI-2 tape"}, \
+ {0, NULL} \
+}
+
+
+/* structure for MTIOCPOS - mag tape get position command */
+
+struct mtpos {
+ long mt_blkno; /* current block number */
+};
+
+
+/* structure for MTIOCVOLINFO, query information about the volume
+ * currently positioned at (zftape)
+ */
+struct mtvolinfo {
+ unsigned int mt_volno; /* vol-number */
+ unsigned int mt_blksz; /* blocksize used when recording */
+ unsigned int mt_rawsize; /* raw tape space consumed, in kb */
+ unsigned int mt_size; /* volume size after decompression, in kb */
+ unsigned int mt_cmpr:1; /* this volume has been compressed */
+};
+
+/* raw access to a floppy drive, read and write an arbitrary segment.
+ * For ftape/zftape to support formatting etc.
+ */
+#define MT_FT_RD_SINGLE 0
+#define MT_FT_RD_AHEAD 1
+#define MT_FT_WR_ASYNC 0 /* start tape only when all buffers are full */
+#define MT_FT_WR_MULTI 1 /* start tape, continue until buffers are empty */
+#define MT_FT_WR_SINGLE 2 /* write a single segment and stop afterwards */
+#define MT_FT_WR_DELETE 3 /* write deleted data marks, one segment at time */
+
+struct mtftseg
+{
+ unsigned mt_segno; /* the segment to read or write */
+ unsigned mt_mode; /* modes for read/write (sync/async etc.) */
+ int mt_result; /* result of r/w request, not of the ioctl */
+ void __user *mt_data; /* User space buffer: must be 29kb */
+};
+
+/* get tape capacity (ftape/zftape)
+ */
+struct mttapesize {
+ unsigned long mt_capacity; /* entire, uncompressed capacity
+ * of a cartridge
+ */
+ unsigned long mt_used; /* what has been used so far, raw
+ * uncompressed amount
+ */
+};
+
+/* possible values of the ftfmt_op field
+ */
+#define FTFMT_SET_PARMS 1 /* set software parms */
+#define FTFMT_GET_PARMS 2 /* get software parms */
+#define FTFMT_FORMAT_TRACK 3 /* start formatting a tape track */
+#define FTFMT_STATUS 4 /* monitor formatting a tape track */
+#define FTFMT_VERIFY 5 /* verify the given segment */
+
+struct ftfmtparms {
+ unsigned char ft_qicstd; /* QIC-40/QIC-80/QIC-3010/QIC-3020 */
+ unsigned char ft_fmtcode; /* Refer to the QIC specs */
+ unsigned char ft_fhm; /* floppy head max */
+ unsigned char ft_ftm; /* floppy track max */
+ unsigned short ft_spt; /* segments per track */
+ unsigned short ft_tpc; /* tracks per cartridge */
+};
+
+struct ftfmttrack {
+ unsigned int ft_track; /* track to format */
+ unsigned char ft_gap3; /* size of gap3, for FORMAT_TRK */
+};
+
+struct ftfmtstatus {
+ unsigned int ft_segment; /* segment currently being formatted */
+};
+
+struct ftfmtverify {
+ unsigned int ft_segment; /* segment to verify */
+ unsigned long ft_bsm; /* bsm as result of VERIFY cmd */
+};
+
+struct mtftformat {
+ unsigned int fmt_op; /* operation to perform */
+ union fmt_arg {
+ struct ftfmtparms fmt_parms; /* format parameters */
+ struct ftfmttrack fmt_track; /* ctrl while formatting */
+ struct ftfmtstatus fmt_status;
+ struct ftfmtverify fmt_verify; /* for verifying */
+ } fmt_arg;
+};
+
+struct mtftcmd {
+ unsigned int ft_wait_before; /* timeout to wait for drive to get ready
+ * before command is sent. Milliseconds
+ */
+ qic117_cmd_t ft_cmd; /* command to send */
+ unsigned char ft_parm_cnt; /* zero: no parm is sent. */
+ unsigned char ft_parms[3]; /* parameter(s) to send to
+ * the drive. The parms are nibbles
+ * driver sends cmd + 2 step pulses */
+ unsigned int ft_result_bits; /* if non zero, number of bits
+ * returned by the tape drive
+ */
+ unsigned int ft_result; /* the result returned by the tape drive*/
+ unsigned int ft_wait_after; /* timeout to wait for drive to get ready
+ * after command is sent. 0: don't wait */
+ int ft_status; /* status returned by ready wait
+ * undefined if timeout was 0.
+ */
+ int ft_error; /* error code if error status was set by
+ * command
+ */
+};
+
+/* 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 MTIOCPOS _IOR('m', 3, struct mtpos) /* get tape position */
+
+/* The next two are used by the QIC-02 driver for runtime reconfiguration.
+ * See tpqic02.h for struct mtconfiginfo.
+ */
+#define MTIOCGETCONFIG _IOR('m', 4, struct mtconfiginfo) /* get tape config */
+#define MTIOCSETCONFIG _IOW('m', 5, struct mtconfiginfo) /* set tape config */
+
+/* the next six are used by the floppy ftape drivers and its frontends
+ * sorry, but MTIOCTOP commands are write only.
+ */
+#define MTIOCRDFTSEG _IOWR('m', 6, struct mtftseg) /* read a segment */
+#define MTIOCWRFTSEG _IOWR('m', 7, struct mtftseg) /* write a segment */
+#define MTIOCVOLINFO _IOR('m', 8, struct mtvolinfo) /* info about volume */
+#define MTIOCGETSIZE _IOR('m', 9, struct mttapesize)/* get cartridge size*/
+#define MTIOCFTFORMAT _IOWR('m', 10, struct mtftformat) /* format ftape */
+#define MTIOCFTCMD _IOWR('m', 11, struct mtftcmd) /* send QIC-117 cmd */
+
+/* Generic Mag Tape (device independent) status macros for examining
+ * mt_gstat -- HP-UX compatible.
+ * There is room for more generic status bits here, but I don't
+ * know which of them are reserved. At least three or so should
+ * be added to make this really useful.
+ */
+#define GMT_EOF(x) ((x) & 0x80000000)
+#define GMT_BOT(x) ((x) & 0x40000000)
+#define GMT_EOT(x) ((x) & 0x20000000)
+#define GMT_SM(x) ((x) & 0x10000000) /* DDS setmark */
+#define GMT_EOD(x) ((x) & 0x08000000) /* DDS EOD */
+#define GMT_WR_PROT(x) ((x) & 0x04000000)
+/* #define GMT_ ? ((x) & 0x02000000) */
+#define GMT_ONLINE(x) ((x) & 0x01000000)
+#define GMT_D_6250(x) ((x) & 0x00800000)
+#define GMT_D_1600(x) ((x) & 0x00400000)
+#define GMT_D_800(x) ((x) & 0x00200000)
+/* #define GMT_ ? ((x) & 0x00100000) */
+/* #define GMT_ ? ((x) & 0x00080000) */
+#define GMT_DR_OPEN(x) ((x) & 0x00040000) /* door open (no tape) */
+/* #define GMT_ ? ((x) & 0x00020000) */
+#define GMT_IM_REP_EN(x) ((x) & 0x00010000) /* immediate report mode */
+#define GMT_CLN(x) ((x) & 0x00008000) /* cleaning requested */
+/* 15 generic status bits unused */
+
+
+/* SCSI-tape specific definitions */
+/* Bitfield shifts in the status */
+#define MT_ST_BLKSIZE_SHIFT 0
+#define MT_ST_BLKSIZE_MASK 0xffffff
+#define MT_ST_DENSITY_SHIFT 24
+#define MT_ST_DENSITY_MASK 0xff000000
+
+#define MT_ST_SOFTERR_SHIFT 0
+#define MT_ST_SOFTERR_MASK 0xffff
+
+/* Bitfields for the MTSETDRVBUFFER ioctl */
+#define MT_ST_OPTIONS 0xf0000000
+#define MT_ST_BOOLEANS 0x10000000
+#define MT_ST_SETBOOLEANS 0x30000000
+#define MT_ST_CLEARBOOLEANS 0x40000000
+#define MT_ST_WRITE_THRESHOLD 0x20000000
+#define MT_ST_DEF_BLKSIZE 0x50000000
+#define MT_ST_DEF_OPTIONS 0x60000000
+#define MT_ST_TIMEOUTS 0x70000000
+#define MT_ST_SET_TIMEOUT (MT_ST_TIMEOUTS | 0x000000)
+#define MT_ST_SET_LONG_TIMEOUT (MT_ST_TIMEOUTS | 0x100000)
+#define MT_ST_SET_CLN 0x80000000
+
+#define MT_ST_BUFFER_WRITES 0x1
+#define MT_ST_ASYNC_WRITES 0x2
+#define MT_ST_READ_AHEAD 0x4
+#define MT_ST_DEBUGGING 0x8
+#define MT_ST_TWO_FM 0x10
+#define MT_ST_FAST_MTEOM 0x20
+#define MT_ST_AUTO_LOCK 0x40
+#define MT_ST_DEF_WRITES 0x80
+#define MT_ST_CAN_BSR 0x100
+#define MT_ST_NO_BLKLIMS 0x200
+#define MT_ST_CAN_PARTITIONS 0x400
+#define MT_ST_SCSI2LOGICAL 0x800
+#define MT_ST_SYSV 0x1000
+#define MT_ST_NOWAIT 0x2000
+
+/* The mode parameters to be controlled. Parameter chosen with bits 20-28 */
+#define MT_ST_CLEAR_DEFAULT 0xfffff
+#define MT_ST_DEF_DENSITY (MT_ST_DEF_OPTIONS | 0x100000)
+#define MT_ST_DEF_COMPRESSION (MT_ST_DEF_OPTIONS | 0x200000)
+#define MT_ST_DEF_DRVBUFFER (MT_ST_DEF_OPTIONS | 0x300000)
+
+/* The offset for the arguments for the special HP changer load command. */
+#define MT_ST_HPLOADER_OFFSET 10000
+
+#endif /* _LINUX_MTIO_H */
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