////////////////////////////////////////////////////////////////////////////////
//
//  Microsoft Research Singularity - Singularity ABI
//
//  Copyright (c) Microsoft Corporation.  All rights reserved.
//
//  File:   DeviceService.csi
//
//  Note:
//

using System;
using System.Runtime.CompilerServices;
using Microsoft.Singularity;

namespace Microsoft.Singularity.V1.Services
{
    public struct DeviceService
    {
        [NoHeapAllocation]
        public static unsafe uint GetPnpSignature(int index, /*[out]*/ char * output,
                                                  uint maxout);

        [NoHeapAllocation]
        public static unsafe bool GetPciPort(out PciPortHandle handle);

        [NoHeapAllocation]
        public static int GetIrqCount(byte line);

        [NoHeapAllocation]
        public static uint GetDynamicIoRangeCount();

        [NoHeapAllocation]
        public static bool GetDynamicIoPortRange(uint range,
                                                 out ushort port,
                                                 out ushort size,
                                                 out bool readable,
                                                 out bool writable);

        [NoHeapAllocation]
        public static unsafe bool GetDynamicIoMemoryRange(uint range,
                                                          out byte * data,
                                                          out uint size,
                                                          out bool readable,
                                                          out bool writable);

        [NoHeapAllocation]
        public static bool GetDynamicIoIrqRange(uint range,
                                                out byte line,
                                                out byte size);

        [NoHeapAllocation]
        public static bool GetDynamicIoDmaRange(uint range,
                                                out byte channel,
                                                out byte size);

        [NoHeapAllocation]
        public static uint GetFixedIoRangeCount();

        [NoHeapAllocation]
        public static bool GetFixedIoPortRange(uint range,
                                               out ushort port,
                                               out ushort size,
                                               out bool readable,
                                               out bool writable);

        [NoHeapAllocation]
        public static unsafe bool GetFixedIoMemoryRange(uint range,
                                                        out byte * data,
                                                        out uint size,
                                                        out bool readable,
                                                        out bool writable);

        [NoHeapAllocation]
        public static bool GetFixedIoIrqRange(uint range,
                                              out byte line,
                                              out byte size);

        [NoHeapAllocation]
        public static bool GetFixedIoDmaRange(uint range,
                                              out byte channel,
                                              out byte size);

        [NoHeapAllocation]
        public static UIntPtr MapPhysicalRange(UIntPtr physStart,
                                               UIntPtr numBytes,
                                               bool readable,
                                               bool writable);

        [NoHeapAllocation]
        public static void UnmapPhysicalRange(UIntPtr startAddr,
                                              UIntPtr limitAddr);

        [NoHeapAllocation]
        public static bool GetDmaPhysicalAddress(
            UIntPtr virtualAddr,
            out UIntPtr physicalAddr,
            out UIntPtr physicalRemaining
            );
    }
}