bsd/sys/disk.h

   1 /*
   2  * Copyright (c) 1998-2005 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_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
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30
  31 #ifndef _SYS_DISK_H_
  32 #define _SYS_DISK_H_
  33
  34 #include <sys/ioctl.h>
  35 #include <sys/types.h>
  36 #include <sys/cdefs.h>
  37
  38 /*
  39  * Definitions
  40  *
  41  * ioctl                            description
  42  * -------------------------------- --------------------------------------------
  43  * DKIOCEJECT                       eject media
  44  * DKIOCSYNCHRONIZECACHE            flush media
  45  *
  46  * DKIOCFORMAT                      format media
  47  * DKIOCGETFORMATCAPACITIES         get media's formattable capacities
  48  *
  49  * DKIOCGETBLOCKSIZE                get media's block size
  50  * DKIOCGETBLOCKCOUNT               get media's block count
  51  * DKIOCGETFIRMWAREPATH             get media's firmware path
  52  *
  53  * DKIOCISFORMATTED                 is media formatted?
  54  * DKIOCISWRITABLE                  is media writable?
  55  *
  56  * DKIOCGETMAXBLOCKCOUNTREAD        get maximum block count for reads
  57  * DKIOCGETMAXBLOCKCOUNTWRITE       get maximum block count for writes
  58  * DKIOCGETMAXBYTECOUNTREAD         get maximum byte count for reads
  59  * DKIOCGETMAXBYTECOUNTWRITE        get maximum byte count for writes
  60  * DKIOCGETMAXSEGMENTCOUNTREAD      get maximum segment count for reads
  61  * DKIOCGETMAXSEGMENTCOUNTWRITE     get maximum segment count for writes
  62  * DKIOCGETMAXSEGMENTBYTECOUNTREAD  get maximum segment byte count for reads
  63  * DKIOCGETMAXSEGMENTBYTECOUNTWRITE get maximum segment byte count for writes
  64  */
  65
  66 #if __DARWIN_ALIGN_POWER
  67 #pragma options align=power
  68 #endif
  69
  70 typedef struct
  71 {
  72     char path[128];
  73 } dk_firmware_path_t;
  74
  75 typedef struct
  76 {
  77     u_int64_t              blockCount;
  78     u_int32_t              blockSize;
  79
  80     u_int8_t               reserved0096[4];        /* reserved, clear to zero */
  81 } dk_format_capacity_t;
  82
  83 /* LP64todo: not 64-bit clean */
  84 typedef struct
  85 {
  86     dk_format_capacity_t * capacities;
  87     u_int32_t              capacitiesCount;        /* use zero to probe count */
  88
  89     u_int8_t               reserved0064[8];        /* reserved, clear to zero */
  90 } dk_format_capacities_t;
  91
  92 #if __DARWIN_ALIGN_POWER
  93 #pragma options align=reset
  94 #endif
  95
  96 #define DKIOCEJECT                       _IO('d', 21)
  97 #define DKIOCSYNCHRONIZECACHE            _IO('d', 22)
  98
  99 #define DKIOCFORMAT                      _IOW('d', 26, dk_format_capacity_t)
 100 #define DKIOCGETFORMATCAPACITIES         _IOWR('d', 26, dk_format_capacities_t)
 101
 102 #define DKIOCGETBLOCKSIZE                _IOR('d', 24, u_int32_t)
 103 #define DKIOCGETBLOCKCOUNT               _IOR('d', 25, u_int64_t)
 104 #define DKIOCGETFIRMWAREPATH             _IOR('d', 28, dk_firmware_path_t)
 105
 106 #define DKIOCISFORMATTED                 _IOR('d', 23, u_int32_t)
 107 #define DKIOCISWRITABLE                  _IOR('d', 29, u_int32_t)
 108
 109 #define DKIOCGETMAXBLOCKCOUNTREAD        _IOR('d', 64, u_int64_t)
 110 #define DKIOCGETMAXBLOCKCOUNTWRITE       _IOR('d', 65, u_int64_t)
 111 #define DKIOCGETMAXBYTECOUNTREAD         _IOR('d', 70, u_int64_t)
 112 #define DKIOCGETMAXBYTECOUNTWRITE        _IOR('d', 71, u_int64_t)
 113 #define DKIOCGETMAXSEGMENTCOUNTREAD      _IOR('d', 66, u_int64_t)
 114 #define DKIOCGETMAXSEGMENTCOUNTWRITE     _IOR('d', 67, u_int64_t)
 115 #define DKIOCGETMAXSEGMENTBYTECOUNTREAD  _IOR('d', 68, u_int64_t)
 116 #define DKIOCGETMAXSEGMENTBYTECOUNTWRITE _IOR('d', 69, u_int64_t)
 117
 118 #ifdef KERNEL
 119 #define DKIOCGETBLOCKCOUNT32             _IOR('d', 25, u_int32_t)
 120 #define DKIOCSETBLOCKSIZE                _IOW('d', 24, u_int32_t)
 121 #define DKIOCGETBSDUNIT                  _IOR('d', 27, u_int32_t)
 122 #define DKIOCISVIRTUAL                   _IOR('d', 72, u_int32_t)
 123 #define DKIOCGETBASE                     _IOR('d', 73, u_int64_t)
 124 #endif /* KERNEL */
 125
 126 #endif  /* _SYS_DISK_H_ */