#include <IOKit/storage/ata/IOATAStorageDefines.h>

IOKit/storage/ata/IOATAStorageDefines.h Kernel.framework

Important word offsets in device identify data as defined in ATA-5 standard

includes: Kernel/stdint.h

22 enums · 2 typedefs · 1 macro

enum(anonymous)

underlying type unsigned int

kATAIdentifyConfiguration	0
kATAIdentifyLogicalCylinderCount	1
kATAIdentifyLogicalHeadCount	3
kATAIdentifySectorsPerTrack	6
kATAIdentifySerialNumber	10
kATAIdentifyFirmwareRevision	23
kATAIdentifyModelNumber	27
kATAIdentifyMultipleSectorCount	47
kATAIdentifyDriveCapabilities	49
kATAIdentifyDriveCapabilitiesExtended	50
kATAIdentifyPIOTiming	51
kATAIdentifyExtendedInfoSupport	53
kATAIdentifyCurrentCylinders	54
kATAIdentifyCurrentHeads	55
kATAIdentifyCurrentSectors	56
kATAIdentifyCurrentCapacity	57
kATAIdentifyCurrentMultipleSectors	59
kATAIdentifyLBACapacity	60
kATAIdentifySingleWordDMA	62
kATAIdentifyMultiWordDMA	63
kATAIdentifyAdvancedPIOModes	64
kATAIdentifyMinMultiWordDMATime	65
kATAIdentifyRecommendedMultiWordDMATime	66
kATAIdentifyMinPIOTime	67
kATAIdentifyMinPIOTimeWithIORDY	68
kATAIdentifyQueueDepth	75
kATAIdentifyMajorVersion	80
kATAIdentifyMinorVersion	81
kATAIdentifyCommandSetSupported	82
kATAIdentifyCommandSetSupported2	83
kATAIdentifyCommandExtension1	84
kATAIdentifyCommandExtension2	85
kATAIdentifyCommandsEnabled	86
kATAIdentifyCommandsDefault	87
kATAIdentifyUltraDMASupported	88
kATAIdentifyPhysicalLogicalSectorSize	106
kATAIdentifyWordsPerLogicalSector1	117
kATAIdentifyWordsPerLogicalSector2	118
kATAIdentifyLogicalSectorAlignment	209
kATAIdentifyIntegrity	255

enum(anonymous)

underlying type unsigned int

kFixedDeviceBit	6	Configuration field (word 0) Fixed disk indicator bit
kRemoveableMediaBit	7	Removable media indicator bit
kNonMagneticDriveBit	15	Non-magnetic drive indicator bit
kFixedDeviceMask	64	Mask for fixed disk indicator
kRemoveableMediaMask	128	Mask for removable media indicator
kNonMagneticDriveMask	32768	Mask for non-magnetic drive indicator
kDMABit	8	Capabilities field (word 49) DMA supported bit
kLBABit	9	LBA supported bit
kIORDYDisableBit	10	IORDY can be disabled bit
kIORDYBit	11	IORDY supported bit
kStandbyTimerBit	13	Standby timer supported bit
kDMASupportedMask	256	Mask for DMA supported
kLBASupportedMask	512	Mask for LBA supported
kDMADisableMask	1024	Mask for DMA supported
kIORDYSupportedMask	2048	Mask for IORDY supported
kStandbySupportedMask	8192	Mask for Standby Timer supported
kCurFieldsValidBit	0	Extensions field (word 53) Bit to show words 54-58 are valid
kExtFieldsValidBit	1	Bit to show words 64-70 are valid
kCurFieldsValidMask	1	Mask for current fields valid
kExtFieldsValidMask	2	Extension word valid
kMode3Bit	0	Advanced PIO Transfer Modes field (word 64) Bit to indicate mode 3 is supported
kMode3Mask	1	Mask for mode 3 support
kChecksumValidCookie	165	Integrity of Identify data (word 255) Bits 7:0 if device supports feature

enum(anonymous)

String size constants

underlying type unsigned int

kSizeOfATAModelString	40
kSizeOfATARevisionString	8

enum(anonymous)

ATA Command timeout constants ( in milliseconds )

underlying type unsigned int

kATATimeout10Seconds	10000
kATATimeout30Seconds	30000
kATATimeout45Seconds	45000
kATATimeout1Minute	60000
kATADefaultTimeout	30000

enum(anonymous)

Retry constants

underlying type unsigned int

kATAZeroRetries	0
kATADefaultRetries	4

enum(anonymous)

max number of blocks supported in ATA transaction

underlying type unsigned int

kIOATASectorCount8Bit	8
kIOATASectorCount16Bit	16

enum(anonymous)

underlying type unsigned int

kIOATAMaximumBlockCount8Bit	256
kIOATAMaximumBlockCount16Bit	65536
kIOATAMaxBlocksPerXfer	256	For backwards compatibility

enum(anonymous)

Power Management time constants (in seconds)

underlying type unsigned int

kSecondsInAMinute	60
k5Minutes	300

enum(anonymous)

Bits for features published in Word 82 of device identify data

underlying type unsigned int

kATASupportsSMARTBit	0
kATASupportsPowerManagementBit	3
kATASupportsWriteCacheBit	5

enum(anonymous)

Masks for features published in Word 82 of device identify data

underlying type unsigned int

kATASupportsSMARTMask	1
kATASupportsPowerManagementMask	8
kATASupportsWriteCacheMask	32

enum(anonymous)

Bits for features published in Word 83 of device identify data

underlying type unsigned int

kATASupportsCompactFlashBit	2
kATASupportsAdvancedPowerManagementBit	3
kATASupports48BitAddressingBit	10
kATASupportsFlushCacheBit	12
kATASupportsFlushCacheExtendedBit	13

enum(anonymous)

Masks for features published in Word 83 of device identify data

underlying type unsigned int

kATASupportsCompactFlashMask	4
kATASupportsAdvancedPowerManagementMask	8
kATASupports48BitAddressingMask	1024
kATASupportsFlushCacheMask	4096
kATASupportsFlushCacheExtendedMask	8192
kIdentifyWordValidationMask	49152	Mask to ensure data is valid
kIdentifyWordValid	16384

enum(anonymous)

Bits for features published in Word 84 of device identify data

underlying type unsigned int

kATAForceUnitAccessFeatureBit

enum(anonymous)

Masks for features published in Word 84 of device identify data

underlying type unsigned int

kATAForceUnitAccessFeatureMask

enum(anonymous)

Bits for features published in Word 85 of device identify data

underlying type unsigned int

kATAWriteCacheEnabledBit

enum(anonymous)

Masks for features published in Word 85 of device identify data

underlying type unsigned int

kATAWriteCacheEnabledMask

enum(anonymous)

Bits for features published in Word 106 of device identify data

underlying type unsigned int

kATAPhysicalLogicalEnabledBit0	15
kATAPhysicalLogicalEnabledBit1	14
kATAMultipleLogicalSectorsBit	13
kATAValidLogicalSectorSizeBit	12

enum(anonymous)

Masks for features published in Word 106 of device identify data

underlying type unsigned int

kATAPhysicalLogicalEnabledMask	49152
kATAPhysicalLogicalEnabledValue	16384
kATAMultipleLogicalSectorsMask	8192
kATAValidLogicalSectorSizeMask	4096
kATAPhysicalSectorSizeMask	15
kATALogicalSectorAlignmentMask	16383

macrokIOATASupportedFeaturesKey

Property table keys

#define kIOATASupportedFeaturesKey "ATA Features"

enum(anonymous)

ATA supported features

underlying type unsigned int

kIOATAFeaturePowerManagement	1	OBSOLETE
kIOATAFeatureWriteCache	2	OBSOLETE
kIOATAFeatureAdvancedPowerManagement	4
kIOATAFeatureCompactFlash	8
kIOATAFeature48BitLBA	16
kIOATAFeatureSMART	32

enum(anonymous)

ATA Advanced Power Management settings (valid settings range from 1-254), the settings below are the more common settings

underlying type unsigned int

kIOATAMaxPerformance	254
kIOATADefaultPerformance	128
kIOATAMaxPowerSavings	1

enum(anonymous)

ATA Transfer Mode bit masks

underlying type unsigned int

kATAEnableUltraDMAModeMask	64
kATAEnableMultiWordDMAModeMask	32
kATAEnablePIOModeMask	8

typedefATAOperationType

typedef uint32_t ATAOperationType

enum(anonymous)

underlying type unsigned int

kATAOperationTypeRead	0
kATAOperationTypeWrite	1
kATAOperationTypeFlushCache	2
kATAOperationTypeSMART	3
kATAOperationTypeConfiguration	4
kATAOperationTypePowerManagement	5
kATAOperationTypeSMS	6

typedefATARequestIdentifier

typedef struct __ATAIORequest * ATARequestIdentifier