bsd/sys/disk.h

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