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1/*
2 * Copyright (c) 1998-2006 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 <stdint.h>
33//#include <sys/ioctl.h>
34
35/*
36 * Definitions
37 *
38 * ioctl description
39 * ------------------------------------- ---------------------------------------
40 * DKIOCEJECT eject media
41 * DKIOCSYNCHRONIZECACHE flush media
42 *
43 * DKIOCFORMAT format media
44 * DKIOCGETFORMATCAPACITIES get media's formattable capacities
45 *
46 * DKIOCGETBLOCKSIZE get media's block size
47 * DKIOCGETBLOCKCOUNT get media's block count
48 * DKIOCGETFIRMWAREPATH get media's firmware path
49 *
50 * DKIOCISFORMATTED is media formatted?
51 * DKIOCISWRITABLE is media writable?
52 *
53 * DKIOCREQUESTIDLE idle media
54 * DKIOCDISCARD delete unused data
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 *
61 * DKIOCGETMAXSEGMENTCOUNTREAD get maximum segment count for reads
62 * DKIOCGETMAXSEGMENTCOUNTWRITE get maximum segment count for writes
63 * DKIOCGETMAXSEGMENTBYTECOUNTREAD get maximum segment byte count for reads
64 * DKIOCGETMAXSEGMENTBYTECOUNTWRITE get maximum segment byte count for writes
65 *
66 * DKIOCGETMINSEGMENTALIGNMENTBYTECOUNT get minimum segment alignment in bytes
67 * DKIOCGETMAXSEGMENTADDRESSABLEBITCOUNT get maximum segment width in bits
68 *
69 * DKIOCGETPHYSICALBLOCKSIZE get device's block size
70 * DKIOCGETCOMMANDPOOLSIZE get device's queue depth
71 */
72
73typedef struct
74{
75 uint64_t offset;
76 uint64_t length;
77
78 uint8_t reserved0128[16]; /* reserved, clear to zero */
79} dk_discard_t;
80
81typedef struct
82{
83 char path[128];
84} dk_firmware_path_t;
85
86typedef struct
87{
88 uint64_t blockCount;
89 uint32_t blockSize;
90
91 uint8_t reserved0096[4]; /* reserved, clear to zero */
92} dk_format_capacity_t;
93
94typedef struct
95{
96 dk_format_capacity_t * capacities;
97 uint32_t capacitiesCount; /* use zero to probe count */
98
99#ifdef __LP64__
100 uint8_t reserved0096[4]; /* reserved, clear to zero */
101#else /* !__LP64__ */
102 uint8_t reserved0064[8]; /* reserved, clear to zero */
103#endif /* !__LP64__ */
104} dk_format_capacities_t;
105
106#define DKIOCEJECT _IO('d', 21)
107#define DKIOCSYNCHRONIZECACHE _IO('d', 22)
108
109#define DKIOCFORMAT _IOW('d', 26, dk_format_capacity_t)
110#define DKIOCGETFORMATCAPACITIES _IOWR('d', 26, dk_format_capacities_t)
111
112#define DKIOCGETBLOCKSIZE _IOR('d', 24, uint32_t)
113#define DKIOCGETBLOCKCOUNT _IOR('d', 25, uint64_t)
114#define DKIOCGETFIRMWAREPATH _IOR('d', 28, dk_firmware_path_t)
115
116#define DKIOCISFORMATTED _IOR('d', 23, uint32_t)
117#define DKIOCISWRITABLE _IOR('d', 29, uint32_t)
118
119#define DKIOCREQUESTIDLE _IO('d', 30)
120#define DKIOCDISCARD _IOW('d', 31, dk_discard_t)
121
122#define DKIOCGETMAXBLOCKCOUNTREAD _IOR('d', 64, uint64_t)
123#define DKIOCGETMAXBLOCKCOUNTWRITE _IOR('d', 65, uint64_t)
124#define DKIOCGETMAXBYTECOUNTREAD _IOR('d', 70, uint64_t)
125#define DKIOCGETMAXBYTECOUNTWRITE _IOR('d', 71, uint64_t)
126
127#define DKIOCGETMAXSEGMENTCOUNTREAD _IOR('d', 66, uint64_t)
128#define DKIOCGETMAXSEGMENTCOUNTWRITE _IOR('d', 67, uint64_t)
129#define DKIOCGETMAXSEGMENTBYTECOUNTREAD _IOR('d', 68, uint64_t)
130#define DKIOCGETMAXSEGMENTBYTECOUNTWRITE _IOR('d', 69, uint64_t)
131
132#define DKIOCGETMINSEGMENTALIGNMENTBYTECOUNT _IOR('d', 74, uint64_t)
133#define DKIOCGETMAXSEGMENTADDRESSABLEBITCOUNT _IOR('d', 75, uint64_t)
134
135#define DKIOCGETPHYSICALBLOCKSIZE _IOR('d', 77, uint32_t)
136#define DKIOCGETCOMMANDPOOLSIZE _IOR('d', 78, uint32_t)
137
138
139#endif/* _SYS_DISK_H_ */
140

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