/* * Copyright (c) 1998-2006 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ #ifndef _SYS_DISK_H_ #define _SYS_DISK_H_ #include <stdint.h> #include <sys/ioctl.h> /* * Definitions * * ioctl description * ------------------------------------- --------------------------------------- * DKIOCEJECT eject media * DKIOCSYNCHRONIZECACHE flush media * * DKIOCFORMAT format media * DKIOCGETFORMATCAPACITIES get media's formattable capacities * * DKIOCGETBLOCKSIZE get media's block size * DKIOCGETBLOCKCOUNT get media's block count * DKIOCGETFIRMWAREPATH get media's firmware path * * DKIOCISFORMATTED is media formatted? * DKIOCISWRITABLE is media writable? * * DKIOCREQUESTIDLE idle media * DKIOCUNMAP delete unused data * * DKIOCGETMAXBLOCKCOUNTREAD get maximum block count for reads * DKIOCGETMAXBLOCKCOUNTWRITE get maximum block count for writes * DKIOCGETMAXBYTECOUNTREAD get maximum byte count for reads * DKIOCGETMAXBYTECOUNTWRITE get maximum byte count for writes * * DKIOCGETMAXSEGMENTCOUNTREAD get maximum segment count for reads * DKIOCGETMAXSEGMENTCOUNTWRITE get maximum segment count for writes * DKIOCGETMAXSEGMENTBYTECOUNTREAD get maximum segment byte count for reads * DKIOCGETMAXSEGMENTBYTECOUNTWRITE get maximum segment byte count for writes * * DKIOCGETMINSEGMENTALIGNMENTBYTECOUNT get minimum segment alignment in bytes * DKIOCGETMAXSEGMENTADDRESSABLEBITCOUNT get maximum segment width in bits * * DKIOCGETFEATURES get device's feature set * DKIOCGETPHYSICALBLOCKSIZE get device's block size * DKIOCGETCOMMANDPOOLSIZE get device's queue depth */ #define DK_FEATURE_UNMAP 0x00000010 typedef struct { uint64_t offset; uint64_t length; } dk_extent_t; typedef struct { char path[128]; } dk_firmware_path_t; typedef struct { uint64_t blockCount; uint32_t blockSize; uint8_t reserved0096[4]; /* reserved, clear to zero */ } dk_format_capacity_t; typedef struct { dk_format_capacity_t * capacities; uint32_t capacitiesCount; /* use zero to probe count */ #ifdef __LP64__ uint8_t reserved0096[4]; /* reserved, clear to zero */ #else /* !__LP64__ */ uint8_t reserved0064[8]; /* reserved, clear to zero */ #endif /* !__LP64__ */ } dk_format_capacities_t; typedef struct { dk_extent_t * extents; uint32_t extentsCount; #ifdef __LP64__ uint8_t reserved0096[4]; /* reserved, clear to zero */ #else /* !__LP64__ */ uint8_t reserved0064[8]; /* reserved, clear to zero */ #endif /* !__LP64__ */ } dk_unmap_t; #define DKIOCEJECT _IO('d', 21) #define DKIOCSYNCHRONIZECACHE _IO('d', 22) #define DKIOCFORMAT _IOW('d', 26, dk_format_capacity_t) #define DKIOCGETFORMATCAPACITIES _IOWR('d', 26, dk_format_capacities_t) #define DKIOCGETBLOCKSIZE _IOR('d', 24, uint32_t) #define DKIOCGETBLOCKCOUNT _IOR('d', 25, uint64_t) #define DKIOCGETFIRMWAREPATH _IOR('d', 28, dk_firmware_path_t) #define DKIOCISFORMATTED _IOR('d', 23, uint32_t) #define DKIOCISWRITABLE _IOR('d', 29, uint32_t) #define DKIOCREQUESTIDLE _IO('d', 30) #define DKIOCUNMAP _IOW('d', 31, dk_unmap_t) #define DKIOCGETMAXBLOCKCOUNTREAD _IOR('d', 64, uint64_t) #define DKIOCGETMAXBLOCKCOUNTWRITE _IOR('d', 65, uint64_t) #define DKIOCGETMAXBYTECOUNTREAD _IOR('d', 70, uint64_t) #define DKIOCGETMAXBYTECOUNTWRITE _IOR('d', 71, uint64_t) #define DKIOCGETMAXSEGMENTCOUNTREAD _IOR('d', 66, uint64_t) #define DKIOCGETMAXSEGMENTCOUNTWRITE _IOR('d', 67, uint64_t) #define DKIOCGETMAXSEGMENTBYTECOUNTREAD _IOR('d', 68, uint64_t) #define DKIOCGETMAXSEGMENTBYTECOUNTWRITE _IOR('d', 69, uint64_t) #define DKIOCGETMINSEGMENTALIGNMENTBYTECOUNT _IOR('d', 74, uint64_t) #define DKIOCGETMAXSEGMENTADDRESSABLEBITCOUNT _IOR('d', 75, uint64_t) #define DKIOCGETFEATURES _IOR('d', 76, uint32_t) #define DKIOCGETPHYSICALBLOCKSIZE _IOR('d', 77, uint32_t) #define DKIOCGETCOMMANDPOOLSIZE _IOR('d', 78, uint32_t) typedef struct { uint64_t offset; uint64_t length; uint8_t reserved0128[16]; /* reserved, clear to zero */ } dk_discard_t __attribute__ ((deprecated)); #define DKIOCDISCARD _IOW('d', 31, dk_discard_t) #ifdef KERNEL #define DK_FEATURE_FORCE_UNIT_ACCESS 0x00000001 typedef struct { uint64_t offset; uint64_t length; uint8_t reserved0128[12]; /* reserved, clear to zero */ dev_t dev; } dk_physical_extent_t; #define DKIOCGETBLOCKCOUNT32 _IOR('d', 25, uint32_t) #define DKIOCSETBLOCKSIZE _IOW('d', 24, uint32_t) #define DKIOCGETBSDUNIT _IOR('d', 27, uint32_t) #define DKIOCISSOLIDSTATE _IOR('d', 79, uint32_t) #define DKIOCISVIRTUAL _IOR('d', 72, uint32_t) #define DKIOCGETBASE _IOR('d', 73, uint64_t) #define DKIOCGETTHROTTLEMASK _IOR('d', 80, uint64_t) #define DKIOCLOCKPHYSICALEXTENTS _IO('d', 81) #define DKIOCGETPHYSICALEXTENT _IOWR('d', 82, dk_physical_extent_t) #define DKIOCUNLOCKPHYSICALEXTENTS _IO('d', 83) #ifdef PRIVATE #define _DKIOCGETMIGRATIONUNITBYTESIZE _IOR('d', 85, uint32_t) #endif /* PRIVATE */ #endif /* KERNEL */ #endif /* _SYS_DISK_H_ */