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Ryujinx/Ryujinx.HLE/HOS/Services/Time/StaticService/ISystemClock.cs
gdkchan 0c87bf9ea4
Refactor CPU interface to allow the implementation of other CPU emulators (#3362)
* Refactor CPU interface

* Use IExecutionContext interface on SVC handler, change how CPU interrupts invokes the handlers

* Make CpuEngine take a ITickSource rather than returning one

The previous implementation had the scenario where the CPU engine had to implement the tick source in mind, like for example, when we have a hypervisor and the game can read CNTPCT on the host directly. However given that we need to do conversion due to different frequencies anyway, it's not worth it. It's better to just let the user pass the tick source and redirect any reads to CNTPCT to the user tick source

* XML docs for the public interfaces

* PPTC invalidation due to NativeInterface function name changes

* Fix build of the CPU tests

* PR feedback
2022-05-31 16:29:35 -03:00

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4.2 KiB
C#

using Ryujinx.Common;
using Ryujinx.Cpu;
using Ryujinx.HLE.HOS.Ipc;
using Ryujinx.HLE.HOS.Kernel.Common;
using Ryujinx.HLE.HOS.Kernel.Threading;
using Ryujinx.HLE.HOS.Services.Time.Clock;
using System;
namespace Ryujinx.HLE.HOS.Services.Time.StaticService
{
class ISystemClock : IpcService
{
private SystemClockCore _clockCore;
private bool _writePermission;
private bool _bypassUninitializedClock;
private int _operationEventReadableHandle;
public ISystemClock(SystemClockCore clockCore, bool writePermission, bool bypassUninitializedClock)
{
_clockCore = clockCore;
_writePermission = writePermission;
_bypassUninitializedClock = bypassUninitializedClock;
_operationEventReadableHandle = 0;
}
[CommandHipc(0)]
// GetCurrentTime() -> nn::time::PosixTime
public ResultCode GetCurrentTime(ServiceCtx context)
{
if (!_bypassUninitializedClock && !_clockCore.IsInitialized())
{
return ResultCode.UninitializedClock;
}
ITickSource tickSource = context.Device.System.TickSource;
ResultCode result = _clockCore.GetCurrentTime(tickSource, out long posixTime);
if (result == ResultCode.Success)
{
context.ResponseData.Write(posixTime);
}
return result;
}
[CommandHipc(1)]
// SetCurrentTime(nn::time::PosixTime)
public ResultCode SetCurrentTime(ServiceCtx context)
{
if (!_writePermission)
{
return ResultCode.PermissionDenied;
}
if (!_bypassUninitializedClock && !_clockCore.IsInitialized())
{
return ResultCode.UninitializedClock;
}
long posixTime = context.RequestData.ReadInt64();
ITickSource tickSource = context.Device.System.TickSource;
return _clockCore.SetCurrentTime(tickSource, posixTime);
}
[CommandHipc(2)]
// GetClockContext() -> nn::time::SystemClockContext
public ResultCode GetSystemClockContext(ServiceCtx context)
{
if (!_bypassUninitializedClock && !_clockCore.IsInitialized())
{
return ResultCode.UninitializedClock;
}
ITickSource tickSource = context.Device.System.TickSource;
ResultCode result = _clockCore.GetClockContext(tickSource, out SystemClockContext clockContext);
if (result == ResultCode.Success)
{
context.ResponseData.WriteStruct(clockContext);
}
return result;
}
[CommandHipc(3)]
// SetClockContext(nn::time::SystemClockContext)
public ResultCode SetSystemClockContext(ServiceCtx context)
{
if (!_writePermission)
{
return ResultCode.PermissionDenied;
}
if (!_bypassUninitializedClock && !_clockCore.IsInitialized())
{
return ResultCode.UninitializedClock;
}
SystemClockContext clockContext = context.RequestData.ReadStruct<SystemClockContext>();
ResultCode result = _clockCore.SetSystemClockContext(clockContext);
return result;
}
[CommandHipc(4)] // 9.0.0+
// GetOperationEventReadableHandle() -> handle<copy>
public ResultCode GetOperationEventReadableHandle(ServiceCtx context)
{
if (_operationEventReadableHandle == 0)
{
KEvent kEvent = new KEvent(context.Device.System.KernelContext);
_clockCore.RegisterOperationEvent(kEvent.WritableEvent);
if (context.Process.HandleTable.GenerateHandle(kEvent.ReadableEvent, out _operationEventReadableHandle) != KernelResult.Success)
{
throw new InvalidOperationException("Out of handles!");
}
}
context.Response.HandleDesc = IpcHandleDesc.MakeCopy(_operationEventReadableHandle);
return ResultCode.Success;
}
}
}