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Annotation of Net2/sys/chio.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. All advertising materials mentioning features or use of this software
        !            14:  *    must display the following acknowledgement:
        !            15:  *     This product includes software developed by the University of
        !            16:  *     California, Berkeley and its contributors.
        !            17:  * 4. Neither the name of the University nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  *
        !            33:  *     @(#)chio.h      7.6 (Berkeley) 2/5/91
        !            34:  *
        !            35:  * PATCHES MAGIC                LEVEL   PATCH THAT GOT US HERE
        !            36:  * --------------------         -----   ----------------------
        !            37:  * CURRENT PATCH LEVEL:         1       00098
        !            38:  * --------------------         -----   ----------------------
        !            39:  *
        !            40:  * 16 Feb 93   Julian Elischer         ADDED for SCSI system
        !            41:  */
        !            42: 
        !            43: /* This is a "convertet" mtio.h from 386BSD 
        !            44:    Stefan Grefen [email protected] 
        !            45:  */
        !            46: 
        !            47: /*
        !            48:  * Structures and definitions for changer io control commands
        !            49:  */
        !            50: #ifndef _CHIO_H_
        !            51: #define _CHIO_H_
        !            52: 
        !            53: #define CH_INVERT              0x10000
        !            54: #define CH_ADDR_MASK           0xffff
        !            55: struct chop {
        !            56:        short   ch_op;          /* operations defined below */
        !            57:        short   result;         /* The result               */
        !            58:        union {
        !            59:           struct {
        !            60:                int chm;                /* Transport element */
        !            61:                int from;
        !            62:                int to;
        !            63:           } move;
        !            64:           struct {
        !            65:                int chm;                /* Transport element */
        !            66:                int to;
        !            67:           } position; 
        !            68:           struct {
        !            69:                short   chmo;                   /* Offset of first CHM */
        !            70:                short   chms;                   /* No. of CHM */
        !            71:                short   slots;                  /* No. of Storage Elements */
        !            72:                 short   sloto;                  /* Offset of first SE */
        !            73:                 short   imexs;                  /* No. of Import/Export Slots */
        !            74:                 short   imexo;                  /* Offset of first IM/EX */
        !            75:                 short   drives;                 /* No. of CTS */
        !            76:                 short   driveo;                 /* Offset of first CTS */
        !            77:                 short   rot;                    /* CHM can rotate */
        !            78:           } getparam;
        !            79:           struct {
        !            80:                int type;
        !            81: #define CH_CHM 1
        !            82: #define CH_STOR        2
        !            83: #define CH_IMEX        3
        !            84: #define CH_CTS 4
        !            85:                int from;
        !            86:                struct {
        !            87:                        u_char elema_1;
        !            88:                        u_char elema_0;
        !            89:                        u_char full:1;
        !            90:                        u_char rsvd:1;
        !            91:                        u_char except:1;
        !            92:                        u_char :5;
        !            93:                        u_char rsvd2;
        !            94:                        union {
        !            95:                                struct {
        !            96:                                u_char add_sense_code;
        !            97:                                u_char add_sense_code_qualifier;
        !            98:                                } specs;
        !            99:                                short add_sense;
        !           100: /* WARINING LSB only */
        !           101: #define CH_CHOLDER     0x0290  /* Cartridge holder is missing */
        !           102: #define CH_STATUSQ     0x0390  /* Status is questionable */
        !           103: #define CH_CTS_CLOSED  0x0490  /* CTS door is closed */
        !           104: 
        !           105:                        } ch_add_sense;
        !           106:                        u_char rsvd3[3];
        !           107:                        u_char :6;
        !           108:                        u_char invert:1;
        !           109:                        u_char svalid:1;
        !           110:                        u_char source_1;
        !           111:                        u_char source_0;
        !           112:                        u_char rsvd4[4];
        !           113:                        } elem_data;
        !           114:                } get_elem_stat;
        !           115:        } u;
        !           116: };
        !           117: 
        !           118: /* operations */
        !           119: #define CHMOVE                         1
        !           120: #define CHPOSITION                     2
        !           121: #define CHGETPARAM                     3
        !           122: #define CHGETELEM                      4
        !           123: 
        !           124: 
        !           125: /* Changer IO control command */
        !           126: #define        CHIOOP  _IOWR('c', 1, struct chop)      /* do a mag tape op */
        !           127: #endif

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