mirror of
https://github.com/danbulant/Cosmos
synced 2026-05-20 12:58:39 +00:00
42 lines
1.3 KiB
C#
42 lines
1.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace Cosmos.Hardware.BlockDevice {
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// This class should not support selecting a device or sub device.
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// Each instance must control exactly one device. For example with ATA
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// master/slave, each one needs its own device instance. For ATA
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// this complicates things a bit because they share IO ports, but this
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// is an intentional decision.
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public abstract class BlockDevice : Device {
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// TODO: Need to protect this from changes except by Hardware ring
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static public List<BlockDevice> Devices = new List<BlockDevice>();
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//TODO:UInt64
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protected UInt32 mBlockCount = 0;
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public UInt32 BlockCount {
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get { return mBlockCount; }
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}
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//TODO:UInt64
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protected UInt32 mBlockSize = 0;
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public UInt32 BlockSize {
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get { return mBlockSize; }
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}
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//TODO:UInt64
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public abstract void ReadBlock(UInt32 aBlockNo, byte[] aData);
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//TODO:UInt64
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public abstract void WriteBlock(UInt32 aBlockNo, byte[] aData);
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//TODO:UInt64
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protected void CheckBlockNo(UInt32 aBlockNo) {
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if (aBlockNo >= mBlockCount) {
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throw new Exception("Invalid block number.");
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}
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}
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}
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}
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