bsd/sys/chio.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  23 /*
  24  * The NEXTSTEP Software License Agreement specifies the terms
  25  * and conditions for redistribution.
  26  */
  27
  28 #ifndef _SYS_CHIO_H_
  29 #define _SYS_CHIO_H_
  30
  31 /*
  32  * Structures and definitions for changer io control commands
  33  */
  34
  35 #define CH_INVERT               0x10000
  36 #define CH_ADDR_MASK            0xffff
  37 struct chop {
  38         short   ch_op;          /* operations defined below */
  39         short   result;         /* the result */
  40         union {
  41                 struct {
  42                         int chm;                /* Transport element */
  43                         int from;
  44                         int to;
  45                 } move;
  46                 struct {
  47                         int chm;                /* Transport element */
  48                         int to;
  49                 } position;
  50                 struct {
  51                         short   chmo;           /* Offset of first CHM */
  52                         short   chms;           /* No. of CHM */
  53                         short   slots;          /* No. of Storage Elements */
  54                         short   sloto;          /* Offset of first SE */
  55                         short   imexs;          /* No. of Import/Export Slots */
  56                         short   imexo;          /* Offset of first IM/EX */
  57                         short   drives;         /* No. of CTS */
  58                         short   driveo;         /* Offset of first CTS */
  59                         short   rot;            /* CHM can rotate */
  60                 } getparam;
  61                 struct {
  62                         int type;
  63 #define CH_CHM  1
  64 #define CH_STOR 2
  65 #define CH_IMEX 3
  66 #define CH_CTS  4
  67                         int from;
  68                         struct {
  69                                 u_char elema_1;
  70                                 u_char elema_0;
  71                                 u_char full:1;
  72                                 u_char rsvd:1;
  73                                 u_char except:1;
  74                                 u_char :5;
  75                                 u_char rsvd2;
  76                                 union {
  77                                         struct {
  78                                                 u_char add_sense_code;
  79                                                 u_char add_sense_code_qualifier;
  80                                         } specs;
  81                                         short add_sense;
  82 /* WARINING LSB only */
  83 #define CH_CHOLDER      0x0290  /* Cartridge holder is missing */
  84 #define CH_STATUSQ      0x0390  /* Status is questionable */
  85 #define CH_CTS_CLOSED   0x0490  /* CTS door is closed */
  86                                 } ch_add_sense;
  87                                 u_char rsvd3[3];
  88                                 u_char :6;
  89                                 u_char invert:1;
  90                                 u_char svalid:1;
  91                                 u_char source_1;
  92                                 u_char source_0;
  93                                 u_char rsvd4[4];
  94                         } elem_data;
  95                 } get_elem_stat;
  96         } u;
  97 };
  98
  99 /* operations */
 100 #define CHMOVE                          1
 101 #define CHPOSITION                      2
 102 #define CHGETPARAM                      3
 103 #define CHGETELEM                       4
 104
 105
 106 /* Changer IO control command */
 107 #define CHIOOP  _IOWR('c', 1, struct chop)      /* do a mag tape op */
 108
 109 #endif /* !_SYS_CHIO_H_ */