| 1 | /* |
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| 2 | * linux/mtio.h header file for Linux. Written by H. Bergman |
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| 3 | * |
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| 4 | * Modified for special ioctls provided by zftape in September 1997 |
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| 5 | * by C.-J. Heine. |
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| 6 | */ |
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| 7 | |
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| 8 | #ifndef _LINUX_MTIO_H |
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| 9 | #define _LINUX_MTIO_H |
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| 10 | |
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| 11 | #include <linux/types.h> |
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| 12 | #include <linux/ioctl.h> |
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| 13 | #include <linux/qic117.h> |
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| 14 | |
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| 15 | /* |
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| 16 | * Structures and definitions for mag tape io control commands |
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| 17 | */ |
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| 18 | |
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| 19 | /* structure for MTIOCTOP - mag tape op command */ |
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| 20 | struct mtop { |
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| 21 | short mt_op; /* operations defined below */ |
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| 22 | int mt_count; /* how many of them */ |
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| 23 | }; |
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| 24 | |
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| 25 | /* Magnetic Tape operations [Not all operations supported by all drivers]: */ |
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| 26 | #define MTRESET 0 /* +reset drive in case of problems */ |
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| 27 | #define MTFSF 1 /* forward space over FileMark, |
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| 28 | * position at first record of next file |
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| 29 | */ |
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| 30 | #define MTBSF 2 /* backward space FileMark (position before FM) */ |
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| 31 | #define MTFSR 3 /* forward space record */ |
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| 32 | #define MTBSR 4 /* backward space record */ |
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| 33 | #define MTWEOF 5 /* write an end-of-file record (mark) */ |
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| 34 | #define MTREW 6 /* rewind */ |
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| 35 | #define MTOFFL 7 /* rewind and put the drive offline (eject?) */ |
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| 36 | #define MTNOP 8 /* no op, set status only (read with MTIOCGET) */ |
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| 37 | #define MTRETEN 9 /* retension tape */ |
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| 38 | #define MTBSFM 10 /* +backward space FileMark, position at FM */ |
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| 39 | #define MTFSFM 11 /* +forward space FileMark, position at FM */ |
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| 40 | #define MTEOM 12 /* goto end of recorded media (for appending files). |
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| 41 | * MTEOM positions after the last FM, ready for |
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| 42 | * appending another file. |
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| 43 | */ |
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| 44 | #define MTERASE 13 /* erase tape -- be careful! */ |
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| 45 | |
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| 46 | #define MTRAS1 14 /* run self test 1 (nondestructive) */ |
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| 47 | #define MTRAS2 15 /* run self test 2 (destructive) */ |
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| 48 | #define MTRAS3 16 /* reserved for self test 3 */ |
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| 49 | |
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| 50 | #define MTSETBLK 20 /* set block length (SCSI) */ |
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| 51 | #define MTSETDENSITY 21 /* set tape density (SCSI) */ |
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| 52 | #define MTSEEK 22 /* seek to block (Tandberg, etc.) */ |
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| 53 | #define MTTELL 23 /* tell block (Tandberg, etc.) */ |
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| 54 | #define MTSETDRVBUFFER 24 /* set the drive buffering according to SCSI-2 */ |
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| 55 | /* ordinary buffered operation with code 1 */ |
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| 56 | #define MTFSS 25 /* space forward over setmarks */ |
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| 57 | #define MTBSS 26 /* space backward over setmarks */ |
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| 58 | #define MTWSM 27 /* write setmarks */ |
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| 59 | |
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| 60 | #define MTLOCK 28 /* lock the drive door */ |
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| 61 | #define MTUNLOCK 29 /* unlock the drive door */ |
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| 62 | #define MTLOAD 30 /* execute the SCSI load command */ |
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| 63 | #define MTUNLOAD 31 /* execute the SCSI unload command */ |
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| 64 | #define MTCOMPRESSION 32/* control compression with SCSI mode page 15 */ |
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| 65 | #define MTSETPART 33 /* Change the active tape partition */ |
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| 66 | #define MTMKPART 34 /* Format the tape with one or two partitions */ |
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| 67 | |
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| 68 | /* structure for MTIOCGET - mag tape get status command */ |
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| 69 | |
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| 70 | struct mtget { |
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| 71 | long mt_type; /* type of magtape device */ |
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| 72 | long mt_resid; /* residual count: (not sure) |
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| 73 | * number of bytes ignored, or |
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| 74 | * number of files not skipped, or |
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| 75 | * number of records not skipped. |
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| 76 | */ |
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| 77 | /* the following registers are device dependent */ |
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| 78 | long mt_dsreg; /* status register */ |
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| 79 | long mt_gstat; /* generic (device independent) status */ |
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| 80 | long mt_erreg; /* error register */ |
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| 81 | /* The next two fields are not always used */ |
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| 82 | __kernel_daddr_t mt_fileno; /* number of current file on tape */ |
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| 83 | __kernel_daddr_t mt_blkno; /* current block number */ |
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| 84 | }; |
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| 85 | |
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| 86 | |
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| 87 | |
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| 88 | /* |
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| 89 | * Constants for mt_type. Not all of these are supported, |
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| 90 | * and these are not all of the ones that are supported. |
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| 91 | */ |
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| 92 | #define MT_ISUNKNOWN 0x01 |
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| 93 | #define MT_ISQIC02 0x02 /* Generic QIC-02 tape streamer */ |
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| 94 | #define MT_ISWT5150 0x03 /* Wangtek 5150EQ, QIC-150, QIC-02 */ |
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| 95 | #define MT_ISARCHIVE_5945L2 0x04 /* Archive 5945L-2, QIC-24, QIC-02? */ |
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| 96 | #define MT_ISCMSJ500 0x05 /* CMS Jumbo 500 (QIC-02?) */ |
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| 97 | #define MT_ISTDC3610 0x06 /* Tandberg 6310, QIC-24 */ |
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| 98 | #define MT_ISARCHIVE_VP60I 0x07 /* Archive VP60i, QIC-02 */ |
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| 99 | #define MT_ISARCHIVE_2150L 0x08 /* Archive Viper 2150L */ |
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| 100 | #define MT_ISARCHIVE_2060L 0x09 /* Archive Viper 2060L */ |
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| 101 | #define MT_ISARCHIVESC499 0x0A /* Archive SC-499 QIC-36 controller */ |
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| 102 | #define MT_ISQIC02_ALL_FEATURES 0x0F /* Generic QIC-02 with all features */ |
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| 103 | #define MT_ISWT5099EEN24 0x11 /* Wangtek 5099-een24, 60MB, QIC-24 */ |
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| 104 | #define MT_ISTEAC_MT2ST 0x12 /* Teac MT-2ST 155mb drive, Teac DC-1 card (Wangtek type) */ |
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| 105 | #define MT_ISEVEREX_FT40A 0x32 /* Everex FT40A (QIC-40) */ |
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| 106 | #define MT_ISDDS1 0x51 /* DDS device without partitions */ |
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| 107 | #define MT_ISDDS2 0x52 /* DDS device with partitions */ |
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| 108 | #define MT_ISONSTREAM_SC 0x61 /* OnStream SCSI tape drives (SC-x0) |
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| 109 | and SCSI emulated (DI, DP, USB) */ |
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| 110 | #define MT_ISSCSI1 0x71 /* Generic ANSI SCSI-1 tape unit */ |
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| 111 | #define MT_ISSCSI2 0x72 /* Generic ANSI SCSI-2 tape unit */ |
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| 112 | |
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| 113 | /* QIC-40/80/3010/3020 ftape supported drives. |
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| 114 | * 20bit vendor ID + 0x800000 (see ftape-vendors.h) |
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| 115 | */ |
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| 116 | #define MT_ISFTAPE_UNKNOWN 0x800000 /* obsolete */ |
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| 117 | #define MT_ISFTAPE_FLAG 0x800000 |
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| 118 | |
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| 119 | struct mt_tape_info { |
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| 120 | long t_type; /* device type id (mt_type) */ |
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| 121 | char *t_name; /* descriptive name */ |
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| 122 | }; |
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| 123 | |
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| 124 | #define MT_TAPE_INFO { \ |
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| 125 | {MT_ISUNKNOWN, "Unknown type of tape device"}, \ |
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| 126 | {MT_ISQIC02, "Generic QIC-02 tape streamer"}, \ |
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| 127 | {MT_ISWT5150, "Wangtek 5150, QIC-150"}, \ |
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| 128 | {MT_ISARCHIVE_5945L2, "Archive 5945L-2"}, \ |
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| 129 | {MT_ISCMSJ500, "CMS Jumbo 500"}, \ |
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| 130 | {MT_ISTDC3610, "Tandberg TDC 3610, QIC-24"}, \ |
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| 131 | {MT_ISARCHIVE_VP60I, "Archive VP60i, QIC-02"}, \ |
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| 132 | {MT_ISARCHIVE_2150L, "Archive Viper 2150L"}, \ |
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| 133 | {MT_ISARCHIVE_2060L, "Archive Viper 2060L"}, \ |
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| 134 | {MT_ISARCHIVESC499, "Archive SC-499 QIC-36 controller"}, \ |
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| 135 | {MT_ISQIC02_ALL_FEATURES, "Generic QIC-02 tape, all features"}, \ |
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| 136 | {MT_ISWT5099EEN24, "Wangtek 5099-een24, 60MB"}, \ |
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| 137 | {MT_ISTEAC_MT2ST, "Teac MT-2ST 155mb data cassette drive"}, \ |
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| 138 | {MT_ISEVEREX_FT40A, "Everex FT40A, QIC-40"}, \ |
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| 139 | {MT_ISONSTREAM_SC, "OnStream SC-, DI-, DP-, or USB tape drive"}, \ |
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| 140 | {MT_ISSCSI1, "Generic SCSI-1 tape"}, \ |
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| 141 | {MT_ISSCSI2, "Generic SCSI-2 tape"}, \ |
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| 142 | {0, NULL} \ |
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| 143 | } |
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| 144 | |
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| 145 | |
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| 146 | /* structure for MTIOCPOS - mag tape get position command */ |
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| 147 | |
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| 148 | struct mtpos { |
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| 149 | long mt_blkno; /* current block number */ |
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| 150 | }; |
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| 151 | |
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| 152 | |
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| 153 | /* structure for MTIOCVOLINFO, query information about the volume |
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| 154 | * currently positioned at (zftape) |
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| 155 | */ |
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| 156 | struct mtvolinfo { |
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| 157 | unsigned int mt_volno; /* vol-number */ |
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| 158 | unsigned int mt_blksz; /* blocksize used when recording */ |
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| 159 | unsigned int mt_rawsize; /* raw tape space consumed, in kb */ |
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| 160 | unsigned int mt_size; /* volume size after decompression, in kb */ |
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| 161 | unsigned int mt_cmpr:1; /* this volume has been compressed */ |
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| 162 | }; |
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| 163 | |
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| 164 | /* raw access to a floppy drive, read and write an arbitrary segment. |
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| 165 | * For ftape/zftape to support formatting etc. |
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| 166 | */ |
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| 167 | #define MT_FT_RD_SINGLE 0 |
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| 168 | #define MT_FT_RD_AHEAD 1 |
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| 169 | #define MT_FT_WR_ASYNC 0 /* start tape only when all buffers are full */ |
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| 170 | #define MT_FT_WR_MULTI 1 /* start tape, continue until buffers are empty */ |
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| 171 | #define MT_FT_WR_SINGLE 2 /* write a single segment and stop afterwards */ |
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| 172 | #define MT_FT_WR_DELETE 3 /* write deleted data marks, one segment at time */ |
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| 173 | |
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| 174 | struct mtftseg |
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| 175 | { |
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| 176 | unsigned mt_segno; /* the segment to read or write */ |
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| 177 | unsigned mt_mode; /* modes for read/write (sync/async etc.) */ |
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| 178 | int mt_result; /* result of r/w request, not of the ioctl */ |
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| 179 | void *mt_data; /* User space buffer: must be 29kb */ |
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| 180 | }; |
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| 181 | |
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| 182 | /* get tape capacity (ftape/zftape) |
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| 183 | */ |
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| 184 | struct mttapesize { |
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| 185 | unsigned long mt_capacity; /* entire, uncompressed capacity |
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| 186 | * of a cartridge |
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| 187 | */ |
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| 188 | unsigned long mt_used; /* what has been used so far, raw |
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| 189 | * uncompressed amount |
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| 190 | */ |
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| 191 | }; |
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| 192 | |
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| 193 | /* possible values of the ftfmt_op field |
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| 194 | */ |
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| 195 | #define FTFMT_SET_PARMS 1 /* set software parms */ |
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| 196 | #define FTFMT_GET_PARMS 2 /* get software parms */ |
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| 197 | #define FTFMT_FORMAT_TRACK 3 /* start formatting a tape track */ |
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| 198 | #define FTFMT_STATUS 4 /* monitor formatting a tape track */ |
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| 199 | #define FTFMT_VERIFY 5 /* verify the given segment */ |
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| 200 | |
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| 201 | struct ftfmtparms { |
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| 202 | unsigned char ft_qicstd; /* QIC-40/QIC-80/QIC-3010/QIC-3020 */ |
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| 203 | unsigned char ft_fmtcode; /* Refer to the QIC specs */ |
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| 204 | unsigned char ft_fhm; /* floppy head max */ |
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| 205 | unsigned char ft_ftm; /* floppy track max */ |
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| 206 | unsigned short ft_spt; /* segments per track */ |
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| 207 | unsigned short ft_tpc; /* tracks per cartridge */ |
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| 208 | }; |
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| 209 | |
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| 210 | struct ftfmttrack { |
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| 211 | unsigned int ft_track; /* track to format */ |
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| 212 | unsigned char ft_gap3; /* size of gap3, for FORMAT_TRK */ |
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| 213 | }; |
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| 214 | |
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| 215 | struct ftfmtstatus { |
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| 216 | unsigned int ft_segment; /* segment currently being formatted */ |
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| 217 | }; |
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| 218 | |
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| 219 | struct ftfmtverify { |
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| 220 | unsigned int ft_segment; /* segment to verify */ |
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| 221 | unsigned long ft_bsm; /* bsm as result of VERIFY cmd */ |
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| 222 | }; |
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| 223 | |
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| 224 | struct mtftformat { |
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| 225 | unsigned int fmt_op; /* operation to perform */ |
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| 226 | union fmt_arg { |
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| 227 | struct ftfmtparms fmt_parms; /* format parameters */ |
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| 228 | struct ftfmttrack fmt_track; /* ctrl while formatting */ |
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| 229 | struct ftfmtstatus fmt_status; |
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| 230 | struct ftfmtverify fmt_verify; /* for verifying */ |
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| 231 | } fmt_arg; |
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| 232 | }; |
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| 233 | |
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| 234 | struct mtftcmd { |
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| 235 | unsigned int ft_wait_before; /* timeout to wait for drive to get ready |
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| 236 | * before command is sent. Milliseconds |
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| 237 | */ |
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| 238 | qic117_cmd_t ft_cmd; /* command to send */ |
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| 239 | unsigned char ft_parm_cnt; /* zero: no parm is sent. */ |
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| 240 | unsigned char ft_parms[3]; /* parameter(s) to send to |
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| 241 | * the drive. The parms are nibbles |
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| 242 | * driver sends cmd + 2 step pulses */ |
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| 243 | unsigned int ft_result_bits; /* if non zero, number of bits |
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| 244 | * returned by the tape drive |
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| 245 | */ |
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| 246 | unsigned int ft_result; /* the result returned by the tape drive*/ |
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| 247 | unsigned int ft_wait_after; /* timeout to wait for drive to get ready |
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| 248 | * after command is sent. 0: don't wait */ |
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| 249 | int ft_status; /* status returned by ready wait |
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| 250 | * undefined if timeout was 0. |
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| 251 | */ |
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| 252 | int ft_error; /* error code if error status was set by |
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| 253 | * command |
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| 254 | */ |
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| 255 | }; |
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| 256 | |
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| 257 | /* mag tape io control commands */ |
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| 258 | #define MTIOCTOP _IOW('m', 1, struct mtop) /* do a mag tape op */ |
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| 259 | #define MTIOCGET _IOR('m', 2, struct mtget) /* get tape status */ |
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| 260 | #define MTIOCPOS _IOR('m', 3, struct mtpos) /* get tape position */ |
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| 261 | |
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| 262 | /* The next two are used by the QIC-02 driver for runtime reconfiguration. |
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| 263 | * See tpqic02.h for struct mtconfiginfo. |
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| 264 | */ |
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| 265 | #define MTIOCGETCONFIG _IOR('m', 4, struct mtconfiginfo) /* get tape config */ |
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| 266 | #define MTIOCSETCONFIG _IOW('m', 5, struct mtconfiginfo) /* set tape config */ |
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| 267 | |
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| 268 | /* the next six are used by the floppy ftape drivers and its frontends |
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| 269 | * sorry, but MTIOCTOP commands are write only. |
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| 270 | */ |
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| 271 | #define MTIOCRDFTSEG _IOWR('m', 6, struct mtftseg) /* read a segment */ |
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| 272 | #define MTIOCWRFTSEG _IOWR('m', 7, struct mtftseg) /* write a segment */ |
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| 273 | #define MTIOCVOLINFO _IOR('m', 8, struct mtvolinfo) /* info about volume */ |
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| 274 | #define MTIOCGETSIZE _IOR('m', 9, struct mttapesize)/* get cartridge size*/ |
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| 275 | #define MTIOCFTFORMAT _IOWR('m', 10, struct mtftformat) /* format ftape */ |
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| 276 | #define MTIOCFTCMD _IOWR('m', 11, struct mtftcmd) /* send QIC-117 cmd */ |
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| 277 | |
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| 278 | /* Generic Mag Tape (device independent) status macros for examining |
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| 279 | * mt_gstat -- HP-UX compatible. |
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| 280 | * There is room for more generic status bits here, but I don't |
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| 281 | * know which of them are reserved. At least three or so should |
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| 282 | * be added to make this really useful. |
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| 283 | */ |
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| 284 | #define GMT_EOF(x) ((x) & 0x80000000) |
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| 285 | #define GMT_BOT(x) ((x) & 0x40000000) |
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| 286 | #define GMT_EOT(x) ((x) & 0x20000000) |
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| 287 | #define GMT_SM(x) ((x) & 0x10000000) /* DDS setmark */ |
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| 288 | #define GMT_EOD(x) ((x) & 0x08000000) /* DDS EOD */ |
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| 289 | #define GMT_WR_PROT(x) ((x) & 0x04000000) |
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| 290 | /* #define GMT_ ? ((x) & 0x02000000) */ |
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| 291 | #define GMT_ONLINE(x) ((x) & 0x01000000) |
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| 292 | #define GMT_D_6250(x) ((x) & 0x00800000) |
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| 293 | #define GMT_D_1600(x) ((x) & 0x00400000) |
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| 294 | #define GMT_D_800(x) ((x) & 0x00200000) |
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| 295 | /* #define GMT_ ? ((x) & 0x00100000) */ |
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| 296 | /* #define GMT_ ? ((x) & 0x00080000) */ |
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| 297 | #define GMT_DR_OPEN(x) ((x) & 0x00040000) /* door open (no tape) */ |
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| 298 | /* #define GMT_ ? ((x) & 0x00020000) */ |
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| 299 | #define GMT_IM_REP_EN(x) ((x) & 0x00010000) /* immediate report mode */ |
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| 300 | #define GMT_CLN(x) ((x) & 0x00008000) /* cleaning requested */ |
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| 301 | /* 15 generic status bits unused */ |
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| 302 | |
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| 303 | |
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| 304 | /* SCSI-tape specific definitions */ |
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| 305 | /* Bitfield shifts in the status */ |
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| 306 | #define MT_ST_BLKSIZE_SHIFT 0 |
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| 307 | #define MT_ST_BLKSIZE_MASK 0xffffff |
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| 308 | #define MT_ST_DENSITY_SHIFT 24 |
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| 309 | #define MT_ST_DENSITY_MASK 0xff000000 |
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| 310 | |
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| 311 | #define MT_ST_SOFTERR_SHIFT 0 |
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| 312 | #define MT_ST_SOFTERR_MASK 0xffff |
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| 313 | |
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| 314 | /* Bitfields for the MTSETDRVBUFFER ioctl */ |
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| 315 | #define MT_ST_OPTIONS 0xf0000000 |
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| 316 | #define MT_ST_BOOLEANS 0x10000000 |
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| 317 | #define MT_ST_SETBOOLEANS 0x30000000 |
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| 318 | #define MT_ST_CLEARBOOLEANS 0x40000000 |
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| 319 | #define MT_ST_WRITE_THRESHOLD 0x20000000 |
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| 320 | #define MT_ST_DEF_BLKSIZE 0x50000000 |
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| 321 | #define MT_ST_DEF_OPTIONS 0x60000000 |
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| 322 | #define MT_ST_TIMEOUTS 0x70000000 |
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| 323 | #define MT_ST_SET_TIMEOUT (MT_ST_TIMEOUTS | 0x000000) |
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| 324 | #define MT_ST_SET_LONG_TIMEOUT (MT_ST_TIMEOUTS | 0x100000) |
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| 325 | #define MT_ST_SET_CLN 0x80000000 |
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| 326 | |
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| 327 | #define MT_ST_BUFFER_WRITES 0x1 |
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| 328 | #define MT_ST_ASYNC_WRITES 0x2 |
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| 329 | #define MT_ST_READ_AHEAD 0x4 |
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| 330 | #define MT_ST_DEBUGGING 0x8 |
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| 331 | #define MT_ST_TWO_FM 0x10 |
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| 332 | #define MT_ST_FAST_MTEOM 0x20 |
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| 333 | #define MT_ST_AUTO_LOCK 0x40 |
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| 334 | #define MT_ST_DEF_WRITES 0x80 |
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| 335 | #define MT_ST_CAN_BSR 0x100 |
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| 336 | #define MT_ST_NO_BLKLIMS 0x200 |
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| 337 | #define MT_ST_CAN_PARTITIONS 0x400 |
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| 338 | #define MT_ST_SCSI2LOGICAL 0x800 |
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| 339 | #define MT_ST_SYSV 0x1000 |
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| 340 | #define MT_ST_NOWAIT 0x2000 |
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| 341 | |
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| 342 | /* The mode parameters to be controlled. Parameter chosen with bits 20-28 */ |
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| 343 | #define MT_ST_CLEAR_DEFAULT 0xfffff |
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| 344 | #define MT_ST_DEF_DENSITY (MT_ST_DEF_OPTIONS | 0x100000) |
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| 345 | #define MT_ST_DEF_COMPRESSION (MT_ST_DEF_OPTIONS | 0x200000) |
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| 346 | #define MT_ST_DEF_DRVBUFFER (MT_ST_DEF_OPTIONS | 0x300000) |
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| 347 | |
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| 348 | /* The offset for the arguments for the special HP changer load command. */ |
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| 349 | #define MT_ST_HPLOADER_OFFSET 10000 |
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| 350 | |
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| 351 | #endif /* _LINUX_MTIO_H */ |
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