bsd/sys/disk.h

   1 /*
   2  * Copyright (c) 1998-2005 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #ifndef _SYS_DISK_H_
  30 #define _SYS_DISK_H_
  31
  32 #include <sys/ioctl.h>
  33 #include <sys/types.h>
  34 #include <sys/cdefs.h>
  35
  36 /*
  37  * Definitions
  38  *
  39  * ioctl                            description
  40  * -------------------------------- --------------------------------------------
  41  * DKIOCEJECT                       eject media
  42  * DKIOCSYNCHRONIZECACHE            flush media
  43  *
  44  * DKIOCFORMAT                      format media
  45  * DKIOCGETFORMATCAPACITIES         get media's formattable capacities
  46  *
  47  * DKIOCGETBLOCKSIZE                get media's block size
  48  * DKIOCGETBLOCKCOUNT               get media's block count
  49  * DKIOCGETFIRMWAREPATH             get media's firmware path
  50  *
  51  * DKIOCISFORMATTED                 is media formatted?
  52  * DKIOCISWRITABLE                  is media writable?
  53  *
  54  * DKIOCGETMAXBLOCKCOUNTREAD        get maximum block count for reads
  55  * DKIOCGETMAXBLOCKCOUNTWRITE       get maximum block count for writes
  56  * DKIOCGETMAXBYTECOUNTREAD         get maximum byte count for reads
  57  * DKIOCGETMAXBYTECOUNTWRITE        get maximum byte count for writes
  58  * DKIOCGETMAXSEGMENTCOUNTREAD      get maximum segment count for reads
  59  * DKIOCGETMAXSEGMENTCOUNTWRITE     get maximum segment count for writes
  60  * DKIOCGETMAXSEGMENTBYTECOUNTREAD  get maximum segment byte count for reads
  61  * DKIOCGETMAXSEGMENTBYTECOUNTWRITE get maximum segment byte count for writes
  62  */
  63
  64 #if __DARWIN_ALIGN_POWER
  65 #pragma options align=power
  66 #endif
  67
  68 typedef struct
  69 {
  70     char path[128];
  71 } dk_firmware_path_t;
  72
  73 typedef struct
  74 {
  75     u_int64_t              blockCount;
  76     u_int32_t              blockSize;
  77
  78     u_int8_t               reserved0096[4];        /* reserved, clear to zero */
  79 } dk_format_capacity_t;
  80
  81 /* LP64todo: not 64-bit clean */
  82 typedef struct
  83 {
  84     dk_format_capacity_t * capacities;
  85     u_int32_t              capacitiesCount;        /* use zero to probe count */
  86
  87     u_int8_t               reserved0064[8];        /* reserved, clear to zero */
  88 } dk_format_capacities_t;
  89
  90 #if __DARWIN_ALIGN_POWER
  91 #pragma options align=reset
  92 #endif
  93
  94 #define DKIOCEJECT                       _IO('d', 21)
  95 #define DKIOCSYNCHRONIZECACHE            _IO('d', 22)
  96
  97 #define DKIOCFORMAT                      _IOW('d', 26, dk_format_capacity_t)
  98 #define DKIOCGETFORMATCAPACITIES         _IOWR('d', 26, dk_format_capacities_t)
  99
 100 #define DKIOCGETBLOCKSIZE                _IOR('d', 24, u_int32_t)
 101 #define DKIOCGETBLOCKCOUNT               _IOR('d', 25, u_int64_t)
 102 #define DKIOCGETFIRMWAREPATH             _IOR('d', 28, dk_firmware_path_t)
 103
 104 #define DKIOCISFORMATTED                 _IOR('d', 23, u_int32_t)
 105 #define DKIOCISWRITABLE                  _IOR('d', 29, u_int32_t)
 106
 107 #define DKIOCGETMAXBLOCKCOUNTREAD        _IOR('d', 64, u_int64_t)
 108 #define DKIOCGETMAXBLOCKCOUNTWRITE       _IOR('d', 65, u_int64_t)
 109 #define DKIOCGETMAXBYTECOUNTREAD         _IOR('d', 70, u_int64_t)
 110 #define DKIOCGETMAXBYTECOUNTWRITE        _IOR('d', 71, u_int64_t)
 111 #define DKIOCGETMAXSEGMENTCOUNTREAD      _IOR('d', 66, u_int64_t)
 112 #define DKIOCGETMAXSEGMENTCOUNTWRITE     _IOR('d', 67, u_int64_t)
 113 #define DKIOCGETMAXSEGMENTBYTECOUNTREAD  _IOR('d', 68, u_int64_t)
 114 #define DKIOCGETMAXSEGMENTBYTECOUNTWRITE _IOR('d', 69, u_int64_t)
 115
 116 #ifdef KERNEL
 117 #define DKIOCGETBLOCKCOUNT32             _IOR('d', 25, u_int32_t)
 118 #define DKIOCSETBLOCKSIZE                _IOW('d', 24, u_int32_t)
 119 #define DKIOCGETBSDUNIT                  _IOR('d', 27, u_int32_t)
 120 #define DKIOCISVIRTUAL                   _IOR('d', 72, u_int32_t)
 121 #define DKIOCGETBASE                     _IOR('d', 73, u_int64_t)
 122 #endif /* KERNEL */
 123
 124 #endif  /* _SYS_DISK_H_ */