bsd/sys/disk.h

   1 /*
   2  * Copyright (c) 1998-2002 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
  23 #ifndef _SYS_DISK_H_
  24 #define _SYS_DISK_H_
  25
  26 #include <sys/ioctl.h>
  27 #include <sys/types.h>
  28
  29 /*
  30  * Definitions
  31  *
  32  * ioctl                            description
  33  * -------------------------------- --------------------------------------------
  34  * DKIOCEJECT                       eject media
  35  * DKIOCSYNCHRONIZECACHE            flush media
  36  *
  37  * DKIOCFORMAT                      format media
  38  * DKIOCGETFORMATCAPACITIES         get media's formattable capacities
  39  *
  40  * DKIOCGETBLOCKSIZE                get media's block size
  41  * DKIOCGETBLOCKCOUNT               get media's block count
  42  * DKIOCGETFIRMWAREPATH             get media's firmware path
  43  *
  44  * DKIOCISFORMATTED                 is media formatted?
  45  * DKIOCISWRITABLE                  is media writable?
  46  *
  47  * DKIOCGETMAXBLOCKCOUNTREAD        get maximum block count for reads
  48  * DKIOCGETMAXBLOCKCOUNTWRITE       get maximum block count for writes
  49  * DKIOCGETMAXBYTECOUNTREAD         get maximum byte count for reads
  50  * DKIOCGETMAXBYTECOUNTWRITE        get maximum byte count for writes
  51  * DKIOCGETMAXSEGMENTCOUNTREAD      get maximum segment count for reads
  52  * DKIOCGETMAXSEGMENTCOUNTWRITE     get maximum segment count for writes
  53  * DKIOCGETMAXSEGMENTBYTECOUNTREAD  get maximum segment byte count for reads
  54  * DKIOCGETMAXSEGMENTBYTECOUNTWRITE get maximum segment byte count for writes
  55  */
  56
  57 typedef struct
  58 {
  59     char path[128];
  60 } dk_firmware_path_t;
  61
  62 typedef struct
  63 {
  64     u_int64_t              blockCount;
  65     u_int32_t              blockSize;
  66
  67     u_int8_t               reserved0096[4];        /* reserved, clear to zero */
  68 } dk_format_capacity_t;
  69
  70 typedef struct
  71 {
  72     dk_format_capacity_t * capacities;
  73     u_int32_t              capacitiesCount;        /* use zero to probe count */
  74
  75     u_int8_t               reserved0064[8];        /* reserved, clear to zero */
  76 } dk_format_capacities_t;
  77
  78 #define DKIOCEJECT                       _IO('d', 21)
  79 #define DKIOCSYNCHRONIZECACHE            _IO('d', 22)
  80
  81 #define DKIOCFORMAT                      _IOW('d', 26, dk_format_capacity_t)
  82 #define DKIOCGETFORMATCAPACITIES         _IOWR('d', 26, dk_format_capacities_t)
  83
  84 #define DKIOCGETBLOCKSIZE                _IOR('d', 24, u_int32_t)
  85 #define DKIOCGETBLOCKCOUNT               _IOR('d', 25, u_int64_t)
  86 #define DKIOCGETFIRMWAREPATH             _IOR('d', 28, dk_firmware_path_t)
  87
  88 #define DKIOCISFORMATTED                 _IOR('d', 23, u_int32_t)
  89 #define DKIOCISWRITABLE                  _IOR('d', 29, u_int32_t)
  90
  91 #define DKIOCGETMAXBLOCKCOUNTREAD        _IOR('d', 64, u_int64_t)
  92 #define DKIOCGETMAXBLOCKCOUNTWRITE       _IOR('d', 65, u_int64_t)
  93 #define DKIOCGETMAXBYTECOUNTREAD         _IOR('d', 70, u_int64_t)
  94 #define DKIOCGETMAXBYTECOUNTWRITE        _IOR('d', 71, u_int64_t)
  95 #define DKIOCGETMAXSEGMENTCOUNTREAD      _IOR('d', 66, u_int64_t)
  96 #define DKIOCGETMAXSEGMENTCOUNTWRITE     _IOR('d', 67, u_int64_t)
  97 #define DKIOCGETMAXSEGMENTBYTECOUNTREAD  _IOR('d', 68, u_int64_t)
  98 #define DKIOCGETMAXSEGMENTBYTECOUNTWRITE _IOR('d', 69, u_int64_t)
  99
 100 #ifdef KERNEL
 101 #define DKIOCGETISVIRTUAL                _IOR('d', 72, u_int32_t)
 102 #define DKIOCGETBLOCKCOUNT32             _IOR('d', 25, u_int32_t)
 103 #define DKIOCSETBLOCKSIZE                _IOW('d', 24, u_int32_t)
 104 #define DKIOCGETBSDUNIT                  _IOR('d', 27, u_int32_t)
 105 #endif /* KERNEL */
 106
 107 #endif  /* _SYS_DISK_H_ */