95 lines
2.4 KiB
C#
95 lines
2.4 KiB
C#
|
///////////////////////////////////////////////////////////////////////////////
|
||
|
|
//
|
||
|
|
// Microsoft Research Singularity
|
||
|
|
//
|
||
|
|
// Copyright (c) Microsoft Corporation. All rights reserved.
|
||
|
|
//
|
||
|
|
// File: HalPic.cs
|
||
|
|
//
|
||
|
|
// Note:
|
||
|
|
//
|
||
|
|
// This file is an implementation of Interfaces/Hal/HalPic.csi
|
||
|
|
//
|
||
|
|
|
||
|
|
using System;
|
||
|
|
using System.Collections;
|
||
|
|
using System.Runtime.CompilerServices;
|
||
|
|
using System.Threading;
|
||
|
|
|
||
|
|
namespace Microsoft.Singularity.Hal
|
||
|
|
{
|
||
|
|
public class HalPic
|
||
|
|
{
|
||
|
|
private Pic pic;
|
||
|
|
|
||
|
|
internal HalPic(Pic thePic)
|
||
|
|
{
|
||
|
|
this.pic = thePic;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Maximum valid IRQ property. On legacy PC systems this value is
|
||
|
|
/// 15. On APIC PC systems this number will usually be larger.
|
||
|
|
/// </summary>
|
||
|
|
public byte MaximumIrq
|
||
|
|
{
|
||
|
|
[NoHeapAllocation]
|
||
|
|
get { return pic.MaximumIrq; }
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Convert interrupt vector to interrupt request line.
|
||
|
|
/// </summary>
|
||
|
|
[NoHeapAllocation]
|
||
|
|
public byte InterruptToIrq(byte interrupt)
|
||
|
|
{
|
||
|
|
return pic.InterruptToIrq(interrupt);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Convert interrupt request line to interrupt vector.
|
||
|
|
/// </summary>
|
||
|
|
[NoHeapAllocation]
|
||
|
|
public byte IrqToInterrupt(byte irq)
|
||
|
|
{
|
||
|
|
return pic.IrqToInterrupt(irq);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Acknowledge the interrupt request. (EOI)
|
||
|
|
/// </summary>
|
||
|
|
[NoHeapAllocation]
|
||
|
|
public void AckIrq(byte irq)
|
||
|
|
{
|
||
|
|
pic.AckIrq(irq);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Enable interrupt request by removing mask.
|
||
|
|
/// </summary>
|
||
|
|
[NoHeapAllocation]
|
||
|
|
public void EnableIrq(byte irq)
|
||
|
|
{
|
||
|
|
pic.EnableIrq(irq);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Disable interrupt request by applying mask.
|
||
|
|
/// </summary>
|
||
|
|
[NoHeapAllocation]
|
||
|
|
public void DisableIrq(byte irq)
|
||
|
|
{
|
||
|
|
pic.DisableIrq(irq);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// <summary>
|
||
|
|
/// Acknowledge and mask interrupt.
|
||
|
|
/// </summary>
|
||
|
|
[NoHeapAllocation]
|
||
|
|
public void ClearInterrupt(byte interrupt)
|
||
|
|
{
|
||
|
|
pic.ClearInterrupt(interrupt);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} // namespace Microsoft.Singularity.Hal
|