bsd/sys/disk.h

   1 /*
   2  * Copyright (c) 1998-2002 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25
  26 #ifndef _SYS_DISK_H_
  27 #define _SYS_DISK_H_
  28
  29 #include <sys/ioctl.h>
  30 #include <sys/types.h>
  31
  32 /*
  33  * Definitions
  34  *
  35  * ioctl                            description
  36  * -------------------------------- --------------------------------------------
  37  * DKIOCEJECT                       eject media
  38  * DKIOCSYNCHRONIZECACHE            flush media
  39  *
  40  * DKIOCFORMAT                      format media
  41  * DKIOCGETFORMATCAPACITIES         get media's formattable capacities
  42  *
  43  * DKIOCGETBLOCKSIZE                get media's block size
  44  * DKIOCGETBLOCKCOUNT               get media's block count
  45  * DKIOCGETFIRMWAREPATH             get media's firmware path
  46  *
  47  * DKIOCISFORMATTED                 is media formatted?
  48  * DKIOCISWRITABLE                  is media writable?
  49  *
  50  * DKIOCGETMAXBLOCKCOUNTREAD        get maximum block count for reads
  51  * DKIOCGETMAXBLOCKCOUNTWRITE       get maximum block count for writes
  52  * DKIOCGETMAXBYTECOUNTREAD         get maximum byte count for reads
  53  * DKIOCGETMAXBYTECOUNTWRITE        get maximum byte count for writes
  54  * DKIOCGETMAXSEGMENTCOUNTREAD      get maximum segment count for reads
  55  * DKIOCGETMAXSEGMENTCOUNTWRITE     get maximum segment count for writes
  56  * DKIOCGETMAXSEGMENTBYTECOUNTREAD  get maximum segment byte count for reads
  57  * DKIOCGETMAXSEGMENTBYTECOUNTWRITE get maximum segment byte count for writes
  58  */
  59
  60 typedef struct
  61 {
  62     char path[128];
  63 } dk_firmware_path_t;
  64
  65 typedef struct
  66 {
  67     u_int64_t              blockCount;
  68     u_int32_t              blockSize;
  69
  70     u_int8_t               reserved0096[4];        /* reserved, clear to zero */
  71 } dk_format_capacity_t;
  72
  73 typedef struct
  74 {
  75     dk_format_capacity_t * capacities;
  76     u_int32_t              capacitiesCount;        /* use zero to probe count */
  77
  78     u_int8_t               reserved0064[8];        /* reserved, clear to zero */
  79 } dk_format_capacities_t;
  80
  81 #define DKIOCEJECT                       _IO('d', 21)
  82 #define DKIOCSYNCHRONIZECACHE            _IO('d', 22)
  83
  84 #define DKIOCFORMAT                      _IOW('d', 26, dk_format_capacity_t)
  85 #define DKIOCGETFORMATCAPACITIES         _IOWR('d', 26, dk_format_capacities_t)
  86
  87 #define DKIOCGETBLOCKSIZE                _IOR('d', 24, u_int32_t)
  88 #define DKIOCGETBLOCKCOUNT               _IOR('d', 25, u_int64_t)
  89 #define DKIOCGETFIRMWAREPATH             _IOR('d', 28, dk_firmware_path_t)
  90
  91 #define DKIOCISFORMATTED                 _IOR('d', 23, u_int32_t)
  92 #define DKIOCISWRITABLE                  _IOR('d', 29, u_int32_t)
  93
  94 #define DKIOCGETMAXBLOCKCOUNTREAD        _IOR('d', 64, u_int64_t)
  95 #define DKIOCGETMAXBLOCKCOUNTWRITE       _IOR('d', 65, u_int64_t)
  96 #define DKIOCGETMAXBYTECOUNTREAD         _IOR('d', 70, u_int64_t)
  97 #define DKIOCGETMAXBYTECOUNTWRITE        _IOR('d', 71, u_int64_t)
  98 #define DKIOCGETMAXSEGMENTCOUNTREAD      _IOR('d', 66, u_int64_t)
  99 #define DKIOCGETMAXSEGMENTCOUNTWRITE     _IOR('d', 67, u_int64_t)
 100 #define DKIOCGETMAXSEGMENTBYTECOUNTREAD  _IOR('d', 68, u_int64_t)
 101 #define DKIOCGETMAXSEGMENTBYTECOUNTWRITE _IOR('d', 69, u_int64_t)
 102
 103 #ifdef KERNEL
 104 #define DKIOCGETISVIRTUAL                _IOR('d', 72, u_int32_t)
 105 #define DKIOCGETBLOCKCOUNT32             _IOR('d', 25, u_int32_t)
 106 #define DKIOCSETBLOCKSIZE                _IOW('d', 24, u_int32_t)
 107 #define DKIOCGETBSDUNIT                  _IOR('d', 27, u_int32_t)
 108 #endif /* KERNEL */
 109
 110 #endif  /* _SYS_DISK_H_ */