Class ATAPI

Inheritance
System.Object
Device
BlockDevice
ATAPI
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Cosmos.HAL.BlockDevice
Assembly: Cosmos.HAL2.dll
Syntax
public class ATAPI : BlockDevice

Constructors

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ATAPI(ATA_PIO)

Constructor for ATAPI speclevel device.

Declaration
public ATAPI(ATA_PIO parentDevice)
Parameters
Type Name Description
ATA_PIO parentDevice

Fields

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device

Declaration
public ATA_PIO device
Field Value
Type Description
ATA_PIO
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IO

CPU IOGroup for all ATA devices, ATAPI uses this group too

Declaration
protected static ATA IO
Field Value
Type Description
ATA
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SectorSize

Default sector size of all ATAPI drives is 2048

Declaration
public const ushort SectorSize = 2048
Field Value
Type Description
System.UInt16

Properties

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MaxLBA

Get The max lba

Declaration
public ulong MaxLBA { get; }
Property Value
Type Description
System.UInt64
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Primary

Is the ATAPI drive on the Primary or Secondary channel of the IDE controller.

Declaration
public bool Primary { get; }
Property Value
Type Description
System.Boolean
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Type

Declaration
public override BlockDeviceType Type { get; }
Property Value
Type Description
BlockDeviceType
Overrides

Methods

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Eject()

Ejects the ATAPI drive (optical media, iomega Zip etc.)

Declaration
public void Eject()
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Init()

Check if ATAPI-speclevel device is on Primary or Secondary channel, and register the appropriate interrupt

Declaration
public void Init()
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ReadBlock(UInt64, UInt64, ref Byte[])

Override method for BlockDevice.ReadBlock, returns the specified buffered sector of ATAPI drive

Declaration
public override void ReadBlock(ulong SectorNum, ulong SectorCount, ref byte[] aData)
Parameters
Type Name Description
System.UInt64 SectorNum
System.UInt64 SectorCount
System.Byte[] aData
Overrides
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WriteBlock(UInt64, UInt64, ref Byte[])

ATAPI writing is not currently supported, that's a future milestone, probably very distant future as we do all development on an existing OS :)

Declaration
public override void WriteBlock(ulong aBlockNo, ulong aBlockCount, ref byte[] aData)
Parameters
Type Name Description
System.UInt64 aBlockNo
System.UInt64 aBlockCount
System.Byte[] aData
Overrides