104 lines
3.6 KiB
C#
104 lines
3.6 KiB
C#
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///////////////////////////////////////////////////////////////////////////////
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//
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// Microsoft Research Singularity - Singularity ABI
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// File: PciPortHandle.cs
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//
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// Note:
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//
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using System;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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namespace Microsoft.Singularity.V1.Services
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{
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public struct PciPortHandle
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{
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public readonly UIntPtr id;
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public static unsafe bool Read8(PciPortHandle handle,
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int offset,
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out byte value)
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{
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unsafe {
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fixed (byte *valuePtr = &value) {
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return Read8Impl(handle, offset, valuePtr);
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}
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}
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}
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public static unsafe bool Read16(PciPortHandle handle,
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int offset,
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out ushort value)
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{
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unsafe {
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fixed (ushort *valuePtr = &value) {
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return Read16Impl(handle, offset, valuePtr);
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}
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}
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}
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public static unsafe bool Read32(PciPortHandle handle,
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int offset,
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out uint value)
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{
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unsafe {
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fixed (uint *valuePtr = &value) {
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return Read32Impl(handle, offset, valuePtr);
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}
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}
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}
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[OutsideGCDomain]
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[NoHeapAllocation]
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[StackBound(1174)]
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[MethodImpl(MethodImplOptions.InternalCall)]
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public static extern unsafe bool Read8Impl(PciPortHandle h,
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int offset,
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byte* value);
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[OutsideGCDomain]
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[NoHeapAllocation]
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[StackBound(1174)]
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[MethodImpl(MethodImplOptions.InternalCall)]
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public static extern unsafe bool Read16Impl(PciPortHandle h,
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int offset,
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ushort* value);
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[OutsideGCDomain]
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[NoHeapAllocation]
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[StackBound(1174)]
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[MethodImpl(MethodImplOptions.InternalCall)]
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public static extern unsafe bool Read32Impl(PciPortHandle h,
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int offset,
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uint* value);
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[OutsideGCDomain]
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[NoHeapAllocation]
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[StackBound(1174)]
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[MethodImpl(MethodImplOptions.InternalCall)]
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public static extern bool Write8(PciPortHandle h,
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int offset,
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byte value);
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[OutsideGCDomain]
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[NoHeapAllocation]
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[StackBound(1174)]
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[MethodImpl(MethodImplOptions.InternalCall)]
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public static extern bool Write16(PciPortHandle h,
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int offset,
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ushort value);
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[OutsideGCDomain]
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[NoHeapAllocation]
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[StackBound(1174)]
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[MethodImpl(MethodImplOptions.InternalCall)]
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public static extern bool Write32(PciPortHandle h,
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int offset,
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uint value);
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}
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}
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