| /* $Id: mtio.h,v 1.4 1992/11/18 01:32:03 root Exp root $ |
| * |
| * linux/mtio.h header file for Linux. Written by H. Bergman |
| */ |
| |
| #ifndef _LINUX_MTIO_H |
| #define _LINUX_MTIO_H |
| |
| #include <linux/ioctl.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 (Tandber, etc.) */ |
| |
| |
| /* 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 */ |
| daddr_t mt_fileno; /* number of current file on tape */ |
| daddr_t mt_blkno; /* current block number */ |
| }; |
| |
| /* |
| * Constants for mt_type. Not all of these 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_ISQIC02_ALL_FEATURES 0x0F /* Generic QIC-02 with all features */ |
| #define MT_ISWT5099EEN24 0x11 /* Wangtek 5099-een24, 60MB, QIC-24 */ |
| #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_ISSCSI1 0x71 /* Generic ANSI SCSI-1 tape unit */ |
| |
| 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_ISWT5099EEN24, "Wangtek 5099-een24, 60MB"}, \ |
| {MT_ISEVEREX_FT40A, "Everex FT40A, QIC-40"}, \ |
| {MT_ISSCSI1, "Generic SCSI-1 tape"}, \ |
| {0, NULL} \ |
| } |
| |
| |
| /* structure for MTIOCPOS - mag tape get position command */ |
| |
| struct mtpos { |
| long mt_blkno; /* current block number */ |
| }; |
| |
| |
| /* 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 */ |
| |
| |
| /* 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 */ |
| /* 16 generic status bits unused */ |
| |
| /* DDS drives have 'setmarks', sort of like filemarks but used to group |
| * files, rather than blocks. Not used. Not supported. |
| * I think DDS drives are DAT drives. |
| */ |
| |
| #endif /* _LINUX_MTIO_H */ |
| |