identify_funcs.h File Reference

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Functions
FORCEINLINE BOOLEAN	AtaDevHasCdbInterrupt (_In_ PIDENTIFY_PACKET_DATA IdentifyPacketData)
FORCEINLINE UCHAR	AtaDevCdbSizeInWords (_In_ PIDENTIFY_PACKET_DATA IdentifyPacketData)
FORCEINLINE BOOLEAN	AtaDevMaxLun (_In_ PIDENTIFY_PACKET_DATA IdentifyPacketData)
FORCEINLINE BOOLEAN	AtaDevIsDmaDirectionRequired (_In_ PIDENTIFY_PACKET_DATA IdentifyPacketData)
FORCEINLINE BOOLEAN	AtaDevIsTape (_In_ PIDENTIFY_PACKET_DATA IdentifyPacketData)
FORCEINLINE BOOLEAN	AtaDevIsIdentifyDataValid (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevHasLbaTranslation (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE ULONG	AtaDevUserAddressableSectors28Bit (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE ULONG64	AtaDevUserAddressableSectors48Bit (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevHas48BitAddressFeature (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevIsCurrentGeometryValid (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE VOID	AtaDevDefaultChsTranslation (_In_ PIDENTIFY_DEVICE_DATA IdentifyData, _Out_ PUSHORT Cylinders, _Out_ PUSHORT Heads, _Out_ PUSHORT SectorsPerTrack)
FORCEINLINE VOID	AtaDevCurrentChsTranslation (_In_ PIDENTIFY_DEVICE_DATA IdentifyData, _Out_ PUSHORT Cylinders, _Out_ PUSHORT Heads, _Out_ PUSHORT SectorsPerTrack)
FORCEINLINE UCHAR	AtaDevCurrentSectorsPerDrq (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE UCHAR	AtaDevMaximumSectorsPerDrq (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE ULONG	AtaDevBytesPerLogicalSector (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE ULONG	AtaDevLogicalSectorsPerPhysicalSector (_In_ PIDENTIFY_DEVICE_DATA IdentifyData, _Out_ PULONG Exponent)
FORCEINLINE ULONG	AtaDevLogicalSectorAlignment (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevInPuisState (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevIsIdentifyDataIncomplete (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevIsRemovable (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevHasRemovableMediaFeature (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE ULONG	AtaDevQueueDepth (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevHasNcqAutosense (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevHasSenseDataReporting (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevHasRemovableMediaStatusNotification (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevHasIeee1667 (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevHasWorldWideName (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevIsZonedDevice (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE UCHAR	AtaDevZonedCapabilities (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevHasSecurityModeFeature (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevHasSmartFeature (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevIsVolatileWriteCacheEnabled (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevIsReadLookAHeadEnabled (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE UCHAR	AtaDevNominalFormFactor (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE USHORT	AtaDevMediumRotationRate (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevIsRotatingDevice (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevIsSsd (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevHasTrimFunction (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevHasRzatFunction (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevHasDratFunction (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevHasForceUnitAccessCommands (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevHasFlushCache (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)
FORCEINLINE BOOLEAN	AtaDevHasFlushCacheExt (_In_ PIDENTIFY_DEVICE_DATA IdentifyData)

Function Documentation

AtaDevBytesPerLogicalSector()

FORCEINLINE ULONG AtaDevBytesPerLogicalSector

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 223 of file identify_funcs.h.

{
    ULONG WordCount;
 
    /* Word 106: 15 = 0, 14 = 1, 12 = 1 */
    if (IdentifyData->PhysicalLogicalSectorSize.Reserved1 == 1 &&
        IdentifyData->PhysicalLogicalSectorSize.LogicalSectorLongerThan256Words)
    {
        /* Words 116-117 */
        WordCount = IdentifyData->WordsPerLogicalSector[0];
        WordCount |= (ULONG)IdentifyData->WordsPerLogicalSector[1] << 16;
    }
    else
    {
        /* 256 words = 512 bytes */
        WordCount = 256;
    }
 
    return WordCount * sizeof(USHORT);
}

AtaDevCdbSizeInWords()

FORCEINLINE UCHAR AtaDevCdbSizeInWords

(

_In_ PIDENTIFY_PACKET_DATA

IdentifyPacketData

)

Definition at line 22 of file identify_funcs.h.

{
    /* Bits 0:2 of word 0 */
    return (IdentifyPacketData->GeneralConfiguration.PacketType != 0) ? 8 : 6;
}

AtaDevCurrentChsTranslation()

FORCEINLINE VOID AtaDevCurrentChsTranslation	(	_In_ PIDENTIFY_DEVICE_DATA	IdentifyData,
		_Out_ PUSHORT	Cylinders,
		_Out_ PUSHORT	Heads,
		_Out_ PUSHORT	SectorsPerTrack
	)

Definition at line 173 of file identify_funcs.h.

{
    /* Word 54 */
    *Cylinders = IdentifyData->NumberOfCurrentCylinders;
    /* Word 55 */
    *Heads = IdentifyData->NumberOfCurrentHeads;
    /* Word 55 */
    *SectorsPerTrack = IdentifyData->CurrentSectorsPerTrack;
}

AtaDevCurrentSectorsPerDrq()

FORCEINLINE UCHAR AtaDevCurrentSectorsPerDrq

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 189 of file identify_funcs.h.

{
    UCHAR MultiSectorCurrent;
 
    /* Bit 8 of word 59 */
    if (!(IdentifyData->MultiSectorSettingValid))
        return 0;
 
    /* The word 59 should be a power of 2 */
    MultiSectorCurrent = IdentifyData->CurrentMultiSectorSetting;
    if ((MultiSectorCurrent > 0) && ((MultiSectorCurrent & (MultiSectorCurrent - 1)) == 0))
        return MultiSectorCurrent;
 
    return 0;
}

AtaDevDefaultChsTranslation()

FORCEINLINE VOID AtaDevDefaultChsTranslation	(	_In_ PIDENTIFY_DEVICE_DATA	IdentifyData,
		_Out_ PUSHORT	Cylinders,
		_Out_ PUSHORT	Heads,
		_Out_ PUSHORT	SectorsPerTrack
	)

Definition at line 157 of file identify_funcs.h.

{
    /* Word 1 */
    *Cylinders = IdentifyData->NumCylinders;
    /* Word 3 */
    *Heads = IdentifyData->NumHeads;
    /* Word 6 */
    *SectorsPerTrack = IdentifyData->NumSectorsPerTrack;
}

AtaDevHas48BitAddressFeature()

FORCEINLINE BOOLEAN AtaDevHas48BitAddressFeature

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 129 of file identify_funcs.h.

{
    /* Word 83: 15 = 0, 14 = 1 */
   if (IdentifyData->CommandSetSupport.WordValid83 == 1)
   {
        /* Bit 10 of word 83 */
        return IdentifyData->CommandSetSupport.BigLba;
   }
 
   return FALSE;
}

AtaDevHasCdbInterrupt()

FORCEINLINE BOOLEAN AtaDevHasCdbInterrupt

(

_In_ PIDENTIFY_PACKET_DATA

IdentifyPacketData

)

Definition at line 13 of file identify_funcs.h.

{
    /* Bits 5:6 of word 0 */
    return (IdentifyPacketData->GeneralConfiguration.DrqDelay == 1);
}

Referenced by AtaPortIdentifyDevice().

AtaDevHasDratFunction()

FORCEINLINE BOOLEAN AtaDevHasDratFunction

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 545 of file identify_funcs.h.

{
    /* Bit 14 of word 69 */
    return IdentifyData->AdditionalSupported.DeterministicReadAfterTrimSupported;
}

Referenced by AtaReqCompleteReadCapacity(), and AtaReqScsiInquiryLogicalBlockProvisioning().

AtaDevHasFlushCache()

FORCEINLINE BOOLEAN AtaDevHasFlushCache

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 569 of file identify_funcs.h.

{
    /* Word 83: 15 = 0, 14 = 1 */
    if (IdentifyData->CommandSetSupport.WordValid == 1)
    {
        /* Bit 12 of word 83 */
        return IdentifyData->CommandSetSupport.FlushCache;
    }
 
    return FALSE;
}

Referenced by AtaDeviceGetFlushCacheCommand().

AtaDevHasFlushCacheExt()

FORCEINLINE BOOLEAN AtaDevHasFlushCacheExt

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 584 of file identify_funcs.h.

{
    /* Word 83: 15 = 0, 14 = 1 */
    if (IdentifyData->CommandSetSupport.WordValid == 1)
    {
        /* Bit 13 of word 83 */
        return IdentifyData->CommandSetSupport.FlushCacheExt;
    }
 
    return FALSE;
}

Referenced by AtaDeviceGetFlushCacheCommand().

AtaDevHasForceUnitAccessCommands()

FORCEINLINE BOOLEAN AtaDevHasForceUnitAccessCommands

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 554 of file identify_funcs.h.

{
    /* Word 83: 15 = 0, 14 = 1 */
    if (IdentifyData->CommandSetSupport.WordValid83 == 1)
    {
        /* Bit 6 of word 84 */
        return IdentifyData->CommandSetSupport.WriteFua;
    }
 
    return FALSE;
}

Referenced by AtaDeviceSetAddressingMode().

AtaDevHasIeee1667()

FORCEINLINE BOOLEAN AtaDevHasIeee1667

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 384 of file identify_funcs.h.

{
    // TODO: Verify word 48
 
    /* Bit 0 of word 48 */
    if (IdentifyData->TrustedComputing.FeatureSupported)
    {
        /* Bit 7 of word 69 */
        return IdentifyData->AdditionalSupported.IEEE1667;
    }
 
    return FALSE;
}

Referenced by AtaCreateStandardInquiryData().

AtaDevHasLbaTranslation()

FORCEINLINE BOOLEAN AtaDevHasLbaTranslation

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 102 of file identify_funcs.h.

{
    /* Bit 9 of word 49 */
    return IdentifyData->Capabilities.LbaSupported;
}

AtaDevHasNcqAutosense()

FORCEINLINE BOOLEAN AtaDevHasNcqAutosense

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 344 of file identify_funcs.h.

{
    USHORT Word76 = ((PUSHORT)IdentifyData)[76]; // IdentifyData->SerialAtaCapabilities
 
    if (Word76 != 0x0000 && Word76 != 0xFFFF)
    {
        /* Bit 7 of word 78 */
        return IdentifyData->SerialAtaFeaturesSupported.NCQAutosense;
    }
 
    return FALSE;
}

Referenced by AtaDeviceNcqRecovery().

AtaDevHasRemovableMediaFeature()

FORCEINLINE BOOLEAN AtaDevHasRemovableMediaFeature

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 311 of file identify_funcs.h.

{
    if (AtaDevIsRemovable(IdentifyData))
    {
        /* Word 83: 15 = 0, 14 = 1 */
        if (IdentifyData->CommandSetSupport.WordValid == 1)
        {
            /* Bit 2 of word 82 */
            return IdentifyData->CommandSetSupport.RemovableMediaFeature;
        }
    }
 
    return FALSE;
}

Referenced by AtaReqScsiMediumRemoval().

AtaDevHasRemovableMediaStatusNotification()

FORCEINLINE BOOLEAN AtaDevHasRemovableMediaStatusNotification

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 375 of file identify_funcs.h.

{
    /* Word 127: bit 0 = 1, bit 1 = 0 */
    return (IdentifyData->MsnSupport == 1);
}

Referenced by AtaDeviceEnableMsnFeature().

AtaDevHasRzatFunction()

FORCEINLINE BOOLEAN AtaDevHasRzatFunction

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 536 of file identify_funcs.h.

{
    /* Bit 5 of word 69 */
    return IdentifyData->AdditionalSupported.ReadZeroAfterTrimSupported;
}

Referenced by AtaReqCompleteReadCapacity(), and AtaReqScsiInquiryLogicalBlockProvisioning().

AtaDevHasSecurityModeFeature()

FORCEINLINE BOOLEAN AtaDevHasSecurityModeFeature

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 434 of file identify_funcs.h.

{
    /* Word 83: 15 = 0, 14 = 1 */
    if (IdentifyData->CommandSetSupport.WordValid == 1)
    {
        /* Bit 1 of word 82 */
        return IdentifyData->CommandSetSupport.SecurityMode;
    }
 
    return FALSE;
}

Referenced by AtaDeviceLockSecurityModeFeatureCommands().

AtaDevHasSenseDataReporting()

FORCEINLINE BOOLEAN AtaDevHasSenseDataReporting

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 360 of file identify_funcs.h.

{
    if (IdentifyData->CommandSetActive.Words119_120Valid && // Word 86: bit 15 = 1
        IdentifyData->CommandSetSupportExt.WordValid == 1)  // Word 119: 15 = 0, 14 = 1
    {
        /* Bit 6 of word 119 */
        return IdentifyData->CommandSetSupportExt.SenseDataReporting;
    }
 
    return FALSE;
}

AtaDevHasSmartFeature()

FORCEINLINE BOOLEAN AtaDevHasSmartFeature

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 449 of file identify_funcs.h.

{
    /* Bit 0 of word 82 */
    return IdentifyData->CommandSetSupport.SmartCommands;
}

Referenced by AtaReqScsiModeSense().

AtaDevHasTrimFunction()

FORCEINLINE BOOLEAN AtaDevHasTrimFunction

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 527 of file identify_funcs.h.

{
    /* Bit 0 of word 169 */
    return IdentifyData->DataSetManagementFeature.SupportsTrim;
}

Referenced by AtaPdoQueryStorageDeviceTrimProperty(), AtaReqCompleteReadCapacity(), AtaReqScsiInquiryBlockLimits(), and AtaReqScsiInquiryLogicalBlockProvisioning().

AtaDevHasWorldWideName()

FORCEINLINE BOOLEAN AtaDevHasWorldWideName

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 401 of file identify_funcs.h.

{
    /* Word 87: 15 = 0, 14 = 1 */
    if (IdentifyData->CommandSetActive.Reserved4 == 1)
    {
        /* Bit 8 of word 87 */
        return IdentifyData->CommandSetActive.WWN64Bit;
    }
 
    return FALSE;
}

Referenced by AtaReqScsiInquiryDeviceIdentifiers().

AtaDevInPuisState()

FORCEINLINE BOOLEAN AtaDevInPuisState

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 283 of file identify_funcs.h.

{
    /* Word 2 */
    return (IdentifyData->SpecificConfiguration == 0x37C8) ||
           (IdentifyData->SpecificConfiguration == 0x738C);
}

Referenced by AtaPortIdentifyDevice().

AtaDevIsCurrentGeometryValid()

FORCEINLINE BOOLEAN AtaDevIsCurrentGeometryValid

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 144 of file identify_funcs.h.

{
    return ((IdentifyData->TranslationFieldsValid & 1) &&
            (IdentifyData->NumberOfCurrentCylinders != 0) &&
            (IdentifyData->NumberOfCurrentCylinders <= 63) &&
            (IdentifyData->NumberOfCurrentHeads != 0) &&
            (IdentifyData->NumberOfCurrentHeads <= 16) &&
            (IdentifyData->CurrentSectorsPerTrack != 0));
}

AtaDevIsDmaDirectionRequired()

FORCEINLINE BOOLEAN AtaDevIsDmaDirectionRequired

(

_In_ PIDENTIFY_PACKET_DATA

IdentifyPacketData

)

Definition at line 51 of file identify_funcs.h.

{
    /* Bit 15 of word 62 */
    if (IdentifyPacketData->DMADIR.DMADIRBitRequired)
    {
        return !(IdentifyPacketData->MultiWordDMASupport & 0x7) &&          // Bits 0:2 of word 63
               !IdentifyPacketData->Capabilities.DmaSupported &&            // Bit 8 of word 49
               !IdentifyPacketData->Capabilities.InterleavedDmaSupported && // Bit 15 of word 49
               !(IdentifyPacketData->UltraDMASupport & 0x7F);               // Bits 0:6 of word 88
    }
 
    return FALSE;
}

Referenced by AtaPortIdentifyDevice().

AtaDevIsIdentifyDataIncomplete()

FORCEINLINE BOOLEAN AtaDevIsIdentifyDataIncomplete

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 293 of file identify_funcs.h.

{
    /* Bit 2 of word 0 */
    return IdentifyData->GeneralConfiguration.ResponseIncomplete;
}

Referenced by AtaPortIdentifyDevice().

AtaDevIsIdentifyDataValid()

FORCEINLINE BOOLEAN AtaDevIsIdentifyDataValid

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 77 of file identify_funcs.h.

{
    ULONG i;
    UCHAR Crc;
 
    /* Bits 0:8 of word 255 */
    if (IdentifyData->Signature != 0xA5)
    {
        /* The integrity word is missing, assume the data provided by the device is valid */
        return TRUE;
    }
 
    /* Verify the checksum */
    Crc = 0;
    for (i = 0; i < sizeof(*IdentifyData); ++i)
    {
        Crc += ((PUCHAR)IdentifyData)[i];
    }
 
    return (Crc == 0);
}

AtaDevIsReadLookAHeadEnabled()

FORCEINLINE BOOLEAN AtaDevIsReadLookAHeadEnabled

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 474 of file identify_funcs.h.

{
    /* Word 83: 15 = 0, 14 = 1 */
    if (IdentifyData->CommandSetSupport.WordValid == 1)
    {
        /* Bit 6 of word 82 and bit 6 of word 85 */
        return (IdentifyData->CommandSetSupport.LookAhead &&
                IdentifyData->CommandSetActive.LookAhead);
    }
 
    return FALSE;
}

Referenced by AtaReqCachingModePage().

AtaDevIsRemovable()

FORCEINLINE BOOLEAN AtaDevIsRemovable

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 302 of file identify_funcs.h.

{
    /* Bit 7 of word 0 */
    return IdentifyData->GeneralConfiguration.RemovableMedia;
}

Referenced by AtaCreateAtapiStandardInquiryData(), AtaCreateStandardInquiryData(), and AtaDevHasRemovableMediaFeature().

AtaDevIsRotatingDevice()

FORCEINLINE BOOLEAN AtaDevIsRotatingDevice

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 508 of file identify_funcs.h.

{
    /* Word 217 */
    return (IdentifyData->NominalMediaRotationRate >= 0x0401 &&
            IdentifyData->NominalMediaRotationRate <= 0xFFFE);
}

Referenced by AtaPdoQueryStorageDeviceSeekPenaltyProperty().

AtaDevIsSsd()

FORCEINLINE BOOLEAN AtaDevIsSsd

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 518 of file identify_funcs.h.

{
    /* Word 217 */
    return (IdentifyData->NominalMediaRotationRate == 1);
}

Referenced by AtaPdoInit(), and AtaPdoQueryStorageDeviceSeekPenaltyProperty().

AtaDevIsTape()

FORCEINLINE BOOLEAN AtaDevIsTape

(

_In_ PIDENTIFY_PACKET_DATA

IdentifyPacketData

)

Definition at line 68 of file identify_funcs.h.

{
    /* Bits 8:12 of word 0 (sequential-access device) */
    return (IdentifyPacketData->GeneralConfiguration.CommandPacketType == 1);
}

Referenced by AtaPdoInit().

AtaDevIsVolatileWriteCacheEnabled()

FORCEINLINE BOOLEAN AtaDevIsVolatileWriteCacheEnabled

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 458 of file identify_funcs.h.

{
    /* Word 83: 15 = 0, 14 = 1 */
    if (IdentifyData->CommandSetSupport.WordValid == 1)
    {
        /* Bit 5 of word 82 and bit 5 of word 85 */
        return (IdentifyData->CommandSetSupport.WriteCache &&
                IdentifyData->CommandSetActive.WriteCache);
    }
 
    return FALSE;
}

Referenced by AtaReqCachingModePage(), and AtaReqScsiSynchronizeCache().

AtaDevIsZonedDevice()

FORCEINLINE BOOLEAN AtaDevIsZonedDevice

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 416 of file identify_funcs.h.

{
    /* Bits 0:1 of word 69 */
    return (IdentifyData->AdditionalSupported.ZonedCapabilities != 0);
}

AtaDevLogicalSectorAlignment()

FORCEINLINE ULONG AtaDevLogicalSectorAlignment

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 267 of file identify_funcs.h.

{
    /* Word 209: 15 = 0, 14 = 1 */
    if (IdentifyData->BlockAlignment.Word209Supported &&
        IdentifyData->BlockAlignment.Reserved0 == 0)
    {
        /* Bits 0:13 of word 209 */
        return IdentifyData->BlockAlignment.AlignmentOfLogicalWithinPhysical;
    }
 
    return 0;
}

Referenced by AtaPdoQueryStorageAccessAlignmentProperty(), and AtaReqCompleteReadCapacity().

AtaDevLogicalSectorsPerPhysicalSector()

FORCEINLINE ULONG AtaDevLogicalSectorsPerPhysicalSector	(	_In_ PIDENTIFY_DEVICE_DATA	IdentifyData,
		_Out_ PULONG	Exponent
	)

Definition at line 247 of file identify_funcs.h.

{
    /* Word 106: 15 = 0, 14 = 1, 13 = 1 */
    if (IdentifyData->PhysicalLogicalSectorSize.Reserved1 == 1 &&
        IdentifyData->PhysicalLogicalSectorSize.MultipleLogicalSectorsPerPhysicalSector)
    {
        /* Bits 0:3 of word 106 */
        *Exponent = IdentifyData->PhysicalLogicalSectorSize.LogicalSectorsPerPhysicalSector;
 
        return 1 << *Exponent;
    }
 
    *Exponent = 0;
    return 1 << 0;
}

Referenced by AtaPdoQueryStorageAccessAlignmentProperty(), and AtaReqCompleteReadCapacity().

AtaDevMaximumSectorsPerDrq()

FORCEINLINE UCHAR AtaDevMaximumSectorsPerDrq

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 208 of file identify_funcs.h.

{
    UCHAR MultiSectorMax;
 
    /* The word 47 should be a power of 2 */
    MultiSectorMax = IdentifyData->MaximumBlockTransfer;
    if ((MultiSectorMax > 0) && ((MultiSectorMax & (MultiSectorMax - 1)) == 0))
        return MultiSectorMax;
 
    return 0;
}

AtaDevMaxLun()

FORCEINLINE BOOLEAN AtaDevMaxLun

(

_In_ PIDENTIFY_PACKET_DATA

IdentifyPacketData

)

Definition at line 31 of file identify_funcs.h.

{
    /* Bits 0:2 of word 126 */
    USHORT LastLunIdentifier = IdentifyPacketData->ReservedWord126 & 7;
 
    /*
     * We perform additional validation because
     * most ATAPI devices ignore the LUN field in the CDB and respond to each LUN.
     */
 
    /* Make sure this field has no value that represents all bits set */
    if (LastLunIdentifier != 7)
        return LastLunIdentifier + 1;
 
    return 1;
}

AtaDevMediumRotationRate()

FORCEINLINE USHORT AtaDevMediumRotationRate

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 499 of file identify_funcs.h.

{
    /* Word 217 */
    return IdentifyData->NominalMediaRotationRate;
}

Referenced by AtaReqScsiInquiryBlockDeviceCharacteristics().

AtaDevNominalFormFactor()

FORCEINLINE UCHAR AtaDevNominalFormFactor

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 490 of file identify_funcs.h.

{
    /* Bits 0:3 of word 168 */
    return IdentifyData->NominalFormFactor;
}

Referenced by AtaReqScsiInquiryBlockDeviceCharacteristics().

AtaDevQueueDepth()

FORCEINLINE ULONG AtaDevQueueDepth

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 329 of file identify_funcs.h.

{
    /* Bit 8 of word 76 */
    if (IdentifyData->SerialAtaCapabilities.NCQ)
    {
        /* Bits 0:4 of word 75 */
        return IdentifyData->QueueDepth + 1;
    }
 
    return 0;
}

Referenced by AtaDeviceEnableQueuedCommands().

AtaDevUserAddressableSectors28Bit()

FORCEINLINE ULONG AtaDevUserAddressableSectors28Bit

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 111 of file identify_funcs.h.

{
    /* Words 60-61 */
    return IdentifyData->UserAddressableSectors;
}

AtaDevUserAddressableSectors48Bit()

FORCEINLINE ULONG64 AtaDevUserAddressableSectors48Bit

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 120 of file identify_funcs.h.

{
    /* Words 100-103 */
    return ((ULONG64)IdentifyData->Max48BitLBA[1] << 32) | IdentifyData->Max48BitLBA[0];
}

AtaDevZonedCapabilities()

FORCEINLINE UCHAR AtaDevZonedCapabilities

(

_In_ PIDENTIFY_DEVICE_DATA

IdentifyData

)

Definition at line 425 of file identify_funcs.h.

{
    /* Bits 0:1 of word 69 */
    return IdentifyData->AdditionalSupported.ZonedCapabilities;
}

Referenced by AtaReqScsiInquiryBlockDeviceCharacteristics().