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Annotation of coherent/f/usr/include.78/sys/xlft.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * /usr/include/sys/ftxl.h
        !             3:  *
        !             4:  * Generic QIC-177 support, Archive style.
        !             5:  *
        !             6:  * Revised: Thu May 27 17:22:26 1993 CDT
        !             7:  */
        !             8: #ifndef __SYS_XLFT_H__
        !             9: #define __SYS_XLFT_H__
        !            10: 
        !            11: /*
        !            12:  * Device names.
        !            13:  *     f l q80 n r  (also, "c" suffix allowed, for control device)
        !            14:  *     | |  |  | |
        !            15:  *     | |  |  | \---  if "r" suffix present, retension on open
        !            16:  *     | |  |  \-----  if "n" suffix present, no rewind on open/close
        !            17:  *     | |  \--------  q80/q40
        !            18:  *     | \-----------  unit 0 or 1
        !            19:  *     \-------------  f = floppy tape
        !            20:  *
        !            21:  * Minor numbers.
        !            22:  *     01frwcuu (leading bits of 01 indicate floppy tape)
        !            23:  *
        !            24:  *     f - 0=qic40/1=qic80
        !            25:  *     r - 1=retension
        !            26:  *     w - 1=rewind
        !            27:  *     c - 1=control
        !            28:  *     u - unit 0..3
        !            29:  */
        !            30: 
        !            31: #define M_FMT          0x20
        !            32: #define M_RET          0x10
        !            33: #define M_REW          0x08
        !            34: #define M_CTL          0x04
        !            35: #define M_UNT          0x03
        !            36: 
        !            37: #define FT_UNIT(x)     (minor(x) & M_UNT)
        !            38: #define FT_FORMAT(x)   ((minor(x) & M_FMT)) >> 5)
        !            39: 
        !            40: union xl_status {
        !            41:        struct {
        !            42:                unsigned short ready:1;         /* drive ready          */
        !            43:                unsigned short error:1;         /* error detected       */
        !            44:                unsigned short cpres:1;         /* cartridge present    */
        !            45:                unsigned short wprot:1;         /* write protected      */
        !            46:                unsigned short newcart:1;       /* new cart inserted    */
        !            47:                unsigned short cref:1;          /* cart referenced      */
        !            48:                unsigned short bot:1;           /* beginning of tape    */
        !            49:                unsigned short eot:1;           /* end of tape          */
        !            50: 
        !            51:                unsigned short errnum:8;        /* error number         */
        !            52:                unsigned short errcmd:8;        /* associated command   */
        !            53: 
        !            54:                unsigned short sfterr;          /* soft errors          */
        !            55:                unsigned short hrderr;          /* hard errors          */
        !            56:                unsigned short undrun;          /* underruns            */
        !            57:        } status;
        !            58:        unsigned char stat[9];
        !            59: };
        !            60: 
        !            61: #define XLIOC                  ('x'<<8)
        !            62: #define XL_STATUS              (XLIOC | 0)     /* read tape status     */
        !            63: #define XL_RESET               (XLIOC | 1)     /* reset tape drive     */
        !            64: #define XL_RETEN               (XLIOC | 2)     /* retension tape       */
        !            65: #define XL_REWIND              (XLIOC | 3)     /* rewind tape          */
        !            66: #define XL_ERASE               (XLIOC | 4)     /* erase tape           */
        !            67: #define XL_AMOUNT              (XLIOC | 5)     /* report xfer amount   */
        !            68: #define XL_RFM                 (XLIOC | 6)     /* read file mark       */
        !            69: #define XL_FORMAT              (XLIOC | 7)     /* format track pair    */
        !            70: #define XL_DEBUG               (XLIOC | 11)    /* set debug variable   */
        !            71: 
        !            72: #endif  /* __SYS_XLFT_H__ */

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