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 */ 71 72typedef struct 73{ 74 uint64_t offset; 75 uint64_t length; 76 77 uint8_t reserved0128[16]; /* reserved, clear to zero */ 78} dk_discard_t; 79 80typedef struct 81{ 82 char path[128]; 83} dk_firmware_path_t; 84 85typedef struct 86{ 87 uint64_t blockCount; 88 uint32_t blockSize; 89 90 uint8_t reserved0096[4]; /* reserved, clear to zero */ 91} dk_format_capacity_t; 92 93typedef struct 94{ 95 dk_format_capacity_t * capacities; 96 uint32_t capacitiesCount; /* use zero to probe count */ 97 98#ifdef __LP64__ 99 uint8_t reserved0096[4]; /* reserved, clear to zero */ 100#else /* !__LP64__ */ 101 uint8_t reserved0064[8]; /* reserved, clear to zero */ 102#endif /* !__LP64__ */ 103} dk_format_capacities_t; 104 105#define DKIOCEJECT _IO('d', 21) 106#define DKIOCSYNCHRONIZECACHE _IO('d', 22) 107 108#define DKIOCFORMAT _IOW('d', 26, dk_format_capacity_t) 109#define DKIOCGETFORMATCAPACITIES _IOWR('d', 26, dk_format_capacities_t) 110 111#define DKIOCGETBLOCKSIZE _IOR('d', 24, uint32_t) 112#define DKIOCGETBLOCKCOUNT _IOR('d', 25, uint64_t) 113#define DKIOCGETFIRMWAREPATH _IOR('d', 28, dk_firmware_path_t) 114 115#define DKIOCISFORMATTED _IOR('d', 23, uint32_t) 116#define DKIOCISWRITABLE _IOR('d', 29, uint32_t) 117 118#define DKIOCREQUESTIDLE _IO('d', 30) 119#define DKIOCDISCARD _IOW('d', 31, dk_discard_t) 120 121#define DKIOCGETMAXBLOCKCOUNTREAD _IOR('d', 64, uint64_t) 122#define DKIOCGETMAXBLOCKCOUNTWRITE _IOR('d', 65, uint64_t) 123#define DKIOCGETMAXBYTECOUNTREAD _IOR('d', 70, uint64_t) 124#define DKIOCGETMAXBYTECOUNTWRITE _IOR('d', 71, uint64_t) 125 126#define DKIOCGETMAXSEGMENTCOUNTREAD _IOR('d', 66, uint64_t) 127#define DKIOCGETMAXSEGMENTCOUNTWRITE _IOR('d', 67, uint64_t) 128#define DKIOCGETMAXSEGMENTBYTECOUNTREAD _IOR('d', 68, uint64_t) 129#define DKIOCGETMAXSEGMENTBYTECOUNTWRITE _IOR('d', 69, uint64_t) 130 131#define DKIOCGETMINSEGMENTALIGNMENTBYTECOUNT _IOR('d', 74, uint64_t) 132#define DKIOCGETMAXSEGMENTADDRESSABLEBITCOUNT _IOR('d', 75, uint64_t) 133 134#define DKIOCGETPHYSICALBLOCKSIZE _IOR('d', 77, uint32_t) 135 136#ifdef KERNEL 137#define DK_FEATURE_DISCARD 0x00000010 138#define DK_FEATURE_FORCE_UNIT_ACCESS 0x00000001 139#define DKIOCGETBLOCKCOUNT32 _IOR('d', 25, uint32_t) 140#define DKIOCSETBLOCKSIZE _IOW('d', 24, uint32_t) 141#define DKIOCGETBSDUNIT _IOR('d', 27, uint32_t) 142#define DKIOCISVIRTUAL _IOR('d', 72, uint32_t) 143#define DKIOCGETBASE _IOR('d', 73, uint64_t) 144#define DKIOCGETFEATURES _IOR('d', 76, uint32_t) 145#endif /* KERNEL */ 146 147#endif /* _SYS_DISK_H_ */ 148