FspSrv improvements, also fix ImageEnd for NROs without a MOD0 section

14 files changed, 399 insertions, 187 deletions

diff --git a/Ryujinx.Core/Loaders/Executable.cs b/Ryujinx.Core/Loaders/Executable.cs
index 6a6073ef..e2660838 100644
--- a/Ryujinx.Core/Loaders/Executable.cs
+++ b/Ryujinx.Core/Loaders/Executable.cs
@@ -26,7 +26,12 @@ namespace Ryujinx.Core.Loaders
 
             if (Exe.Mod0Offset == 0)
             {
-                MapBss(ImageBase + Exe.DataOffset + Exe.Data.Count, Exe.BssSize);
+                int BssOffset = Exe.DataOffset + Exe.Data.Count;
+                int BssSize   = Exe.BssSize;
+
+                MapBss(ImageBase + BssOffset, BssSize);
+
+                ImageEnd = ImageBase + BssOffset + BssSize;
 
                 return;
             }
diff --git a/Ryujinx.Core/OsHle/Ipc/IpcHandler.cs b/Ryujinx.Core/OsHle/Ipc/IpcHandler.cs
index deab8896..612d15eb 100644
--- a/Ryujinx.Core/OsHle/Ipc/IpcHandler.cs
+++ b/Ryujinx.Core/OsHle/Ipc/IpcHandler.cs
@@ -34,9 +34,12 @@ namespace Ryujinx.Core.OsHle.Ipc
             { ( "hid",         0), Service.HidCreateAppletResource                  },
             { ( "hid",        11), Service.HidActivateTouchScreen                   },
             { ( "hid",       100), Service.HidSetSupportedNpadStyleSet              },
+            { ( "hid",       101), Service.HidGetSupportedNpadStyleSet              },
             { ( "hid",       102), Service.HidSetSupportedNpadIdType                },
             { ( "hid",       103), Service.HidActivateNpad                          },
             { ( "hid",       120), Service.HidSetNpadJoyHoldType                    },
+            { ( "hid",       121), Service.HidGetNpadJoyHoldType                    },
+            { ( "hid",       203), Service.HidCreateActiveVibrationDeviceList       },
             { ( "lm",          0), Service.LmInitialize                             },
             { ( "nvdrv",       0), Service.NvDrvOpen                                },
             { ( "nvdrv",       1), Service.NvDrvIoctl                               },
@@ -79,6 +82,7 @@ namespace Ryujinx.Core.OsHle.Ipc
             AMemory    Memory,
             HSession   Session,
             IpcMessage Request,
+            int        ThreadId,
             long       CmdPtr,
             int        HndId)
         {
@@ -111,13 +115,13 @@ namespace Ryujinx.Core.OsHle.Ipc
                             {
                                 ServiceCmds.TryGetValue((ServiceName, CmdId), out ProcReq);
 
-                                DbgServiceName = $"{ServiceName} {ProcReq?.Method.Name ?? CmdId.ToString()}";
+                                DbgServiceName = $"{ProcReq?.Method.Name ?? CmdId.ToString()}";
                             }
                             else if (Obj != null)
                             {
                                 ((IIpcInterface)Obj).Commands.TryGetValue(CmdId, out ProcReq);
 
-                                DbgServiceName = $"{ServiceName} {Obj.GetType().Name} {ProcReq?.Method.Name ?? CmdId.ToString()}";
+                                DbgServiceName = $"{Obj.GetType().Name} {ProcReq?.Method.Name ?? CmdId.ToString()}";
                             }
                         }
                         else if (Request.DomCmd == IpcDomCmd.DeleteObj)
@@ -140,16 +144,18 @@ namespace Ryujinx.Core.OsHle.Ipc
 
                             ((IIpcInterface)Obj).Commands.TryGetValue(CmdId, out ProcReq);
 
-                            DbgServiceName = $"{ServiceName} {Obj.GetType().Name} {ProcReq?.Method.Name ?? CmdId.ToString()}";
+                            DbgServiceName = $"{Obj.GetType().Name} {ProcReq?.Method.Name ?? CmdId.ToString()}";
                         }
                         else
                         {
                             ServiceCmds.TryGetValue((ServiceName, CmdId), out ProcReq);
 
-                            DbgServiceName = $"{ServiceName} {ProcReq?.Method.Name ?? CmdId.ToString()}";
+                            DbgServiceName = $"{ProcReq?.Method.Name ?? CmdId.ToString()}";
                         }
                     }
 
+                    DbgServiceName = $"Tid {ThreadId} {ServiceName} {DbgServiceName}";
+
                     Logging.Debug($"IpcMessage: {DbgServiceName}");
 
                     if (ProcReq != null)
diff --git a/Ryujinx.Core/OsHle/Objects/ErrorCode.cs b/Ryujinx.Core/OsHle/Objects/ErrorCode.cs
new file mode 100644
index 00000000..20f97f84
--- /dev/null
+++ b/Ryujinx.Core/OsHle/Objects/ErrorCode.cs
@@ -0,0 +1,12 @@
+using System;
+
+namespace Ryujinx.Core.OsHle.Objects
+{
+    static class ErrorCode
+    {
+        public static long MakeError(ErrorModule Module, int Code)
+        {
+            return (int)Module | (Code << 9);
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Core/OsHle/Objects/ErrorModule.cs b/Ryujinx.Core/OsHle/Objects/ErrorModule.cs
new file mode 100644
index 00000000..0221031b
--- /dev/null
+++ b/Ryujinx.Core/OsHle/Objects/ErrorModule.cs
@@ -0,0 +1,7 @@
+namespace Ryujinx.Core.OsHle.Objects
+{
+    enum ErrorModule
+    {
+        Fs = 2,
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Core/OsHle/Objects/FspSrv/FsErr.cs b/Ryujinx.Core/OsHle/Objects/FspSrv/FsErr.cs
new file mode 100644
index 00000000..d9aa60ae
--- /dev/null
+++ b/Ryujinx.Core/OsHle/Objects/FspSrv/FsErr.cs
@@ -0,0 +1,9 @@
+namespace Ryujinx.Core.OsHle.Objects.FspSrv
+{
+    static class FsErr
+    {
+        public const int PathDoesNotExist  = 1;
+        public const int PathAlreadyExists = 2;
+        public const int PathAlreadyInUse  = 7;
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Core/OsHle/Objects/FspSrv/IDirectory.cs b/Ryujinx.Core/OsHle/Objects/FspSrv/IDirectory.cs
index 88fce28e..785b1ba3 100644
--- a/Ryujinx.Core/OsHle/Objects/FspSrv/IDirectory.cs
+++ b/Ryujinx.Core/OsHle/Objects/FspSrv/IDirectory.cs
@@ -3,131 +3,115 @@ using Ryujinx.Core.OsHle.Ipc;
 using System;
 using System.Collections.Generic;
 using System.IO;
-using System.Linq;
-using System.Runtime.InteropServices;
 using System.Text;
 
 namespace Ryujinx.Core.OsHle.Objects.FspSrv
 {
-    [StructLayout(LayoutKind.Sequential, Size = 0x310)]
-    struct DirectoryEntry
+    class IDirectory : IIpcInterface, IDisposable
     {
-        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x300)]
-        public byte[] Name;
-        public int Unknown;
-        public byte Type;
-        [MarshalAs(UnmanagedType.ByValArray, SizeConst = 0x3)]
-        public byte[] Padding;
-        public long Size;
-    }
+        private const int DirectoryEntrySize = 0x310;
 
-    enum DirectoryEntryType
-    {
-        Directory,
-        File
-    }
-
-    class IDirectory : IIpcInterface
-    {
-        private List<DirectoryEntry> DirectoryEntries = new List<DirectoryEntry>();
         private Dictionary<int, ServiceProcessRequest> m_Commands;
 
         public IReadOnlyDictionary<int, ServiceProcessRequest> Commands => m_Commands;
 
-        private string HostPath;
+        private List<string> DirectoryEntries;
 
-        public IDirectory(string HostPath, int flags)
+        private int CurrentItemIndex;
+
+        public event EventHandler<EventArgs> Disposed;
+
+        public string HostPath { get; private set; }
+
+        public IDirectory(string HostPath, int Flags)
         {
             m_Commands = new Dictionary<int, ServiceProcessRequest>()
             {
-                {  0, Read          },
-                {  1, GetEntryCount }
+                { 0, Read          },
+                { 1, GetEntryCount }
             };
 
             this.HostPath = HostPath;
 
-            if ((flags & 1) == 1)
+            DirectoryEntries = new List<string>();
+
+            if ((Flags & 1) != 0)
             {
-                string[] Directories = Directory.GetDirectories(HostPath, "*", SearchOption.TopDirectoryOnly).
-                             Where(x => (new FileInfo(x).Attributes & FileAttributes.Hidden) == 0).ToArray();
-
-                foreach (string Directory in Directories)
-                {
-                    DirectoryEntry Info = new DirectoryEntry
-                    {
-                        Name = Encoding.UTF8.GetBytes(Directory),
-                        Type = (byte)DirectoryEntryType.Directory,
-                        Size = 0
-                    };
-
-                    Array.Resize(ref Info.Name, 0x300);
-                    DirectoryEntries.Add(Info);
-                }
+                DirectoryEntries.AddRange(Directory.GetDirectories(HostPath));
             }
 
-            if ((flags & 2) == 2)
+            if ((Flags & 2) != 0)
             {
-                string[] Files = Directory.GetFiles(HostPath, "*", SearchOption.TopDirectoryOnly).
-                       Where(x => (new FileInfo(x).Attributes & FileAttributes.Hidden) == 0).ToArray();
-
-                foreach (string FileName in Files)
-                {
-                    DirectoryEntry Info = new DirectoryEntry
-                    {
-                        Name = Encoding.UTF8.GetBytes(Path.GetFileName(FileName)),
-                        Type = (byte)DirectoryEntryType.File,
-                        Size = new FileInfo(Path.Combine(HostPath, FileName)).Length
-                    };
-
-                    Array.Resize(ref Info.Name, 0x300);
-                    DirectoryEntries.Add(Info);
-                }
+                DirectoryEntries.AddRange(Directory.GetFiles(HostPath));
             }
+
+            CurrentItemIndex = 0;
         }
 
-        private int LastItem = 0;
         public long Read(ServiceCtx Context)
         {
             long BufferPosition = Context.Request.ReceiveBuff[0].Position;
-            long BufferLen = Context.Request.ReceiveBuff[0].Size;
-            long MaxDirectories = BufferLen / Marshal.SizeOf(typeof(DirectoryEntry));
+            long BufferLen      = Context.Request.ReceiveBuff[0].Size;
 
-            if (MaxDirectories > DirectoryEntries.Count - LastItem)
-            {
-                MaxDirectories = DirectoryEntries.Count - LastItem;
-            }
+            int MaxReadCount = (int)(BufferLen / DirectoryEntrySize);
 
-            int CurrentIndex;
-            for (CurrentIndex = 0; CurrentIndex < MaxDirectories; CurrentIndex++)
-            {
-                int CurrentItem = LastItem + CurrentIndex;
+            int Count = Math.Min(DirectoryEntries.Count - CurrentItemIndex, MaxReadCount);
 
-                byte[] DirectoryEntry = new byte[Marshal.SizeOf(typeof(DirectoryEntry))];
-                IntPtr Ptr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(DirectoryEntry)));
-                Marshal.StructureToPtr(DirectoryEntries[CurrentItem], Ptr, true);
-                Marshal.Copy(Ptr, DirectoryEntry, 0, Marshal.SizeOf(typeof(DirectoryEntry)));
-                Marshal.FreeHGlobal(Ptr);
+            for (int Index = 0; Index < Count; Index++)
+            {
+                long Position = BufferPosition + Index * DirectoryEntrySize;
 
-                AMemoryHelper.WriteBytes(Context.Memory, BufferPosition + Marshal.SizeOf(typeof(DirectoryEntry)) * CurrentIndex, DirectoryEntry);
+                WriteDirectoryEntry(Context, Position, DirectoryEntries[CurrentItemIndex++]);
             }
 
-            if (LastItem < DirectoryEntries.Count)
+            Context.ResponseData.Write((long)Count);
+
+            return 0;
+        }
+
+        private void WriteDirectoryEntry(ServiceCtx Context, long Position, string FullPath)
+        {
+            for (int Offset = 0; Offset < 0x300; Offset += 8)
             {
-                LastItem += CurrentIndex;
-                Context.ResponseData.Write((long)CurrentIndex); // index = number of entries written this call.
+                Context.Memory.WriteInt64(Position + Offset, 0);
             }
-            else
+
+            byte[] NameBuffer = Encoding.UTF8.GetBytes(Path.GetFileName(FullPath));
+
+            AMemoryHelper.WriteBytes(Context.Memory, Position, NameBuffer);
+
+            int  Type = 0;
+            long Size = 0;
+
+            if (File.Exists(FullPath))
             {
-                Context.ResponseData.Write((long)0);
+                Type = 1;
+                Size = new FileInfo(FullPath).Length;
             }
 
-            return 0;
+            Context.Memory.WriteInt32(Position + 0x300, 0); //Padding?
+            Context.Memory.WriteInt32(Position + 0x304, Type);
+            Context.Memory.WriteInt64(Position + 0x308, Size);
         }
 
         public long GetEntryCount(ServiceCtx Context)
         {
             Context.ResponseData.Write((long)DirectoryEntries.Count);
+
             return 0;
         }
+
+        public void Dispose()
+        {
+            Dispose(true);
+        }
+
+        protected virtual void Dispose(bool disposing)
+        {
+            if (disposing)
+            {
+                Disposed?.Invoke(this, EventArgs.Empty);
+            }
+        }
     }
 }
diff --git a/Ryujinx.Core/OsHle/Objects/FspSrv/IFile.cs b/Ryujinx.Core/OsHle/Objects/FspSrv/IFile.cs
index 95fbc650..82706f60 100644
--- a/Ryujinx.Core/OsHle/Objects/FspSrv/IFile.cs
+++ b/Ryujinx.Core/OsHle/Objects/FspSrv/IFile.cs
@@ -14,18 +14,23 @@ namespace Ryujinx.Core.OsHle.Objects.FspSrv
 
         private Stream BaseStream;
 
-        public IFile(Stream BaseStream)
+        public event EventHandler<EventArgs> Disposed;
+
+        public string HostPath { get; private set; }
+
+        public IFile(Stream BaseStream, string HostPath)
         {
             m_Commands = new Dictionary<int, ServiceProcessRequest>()
             {
-                { 0, Read  },
-                { 1, Write },
-                // { 2, Flush },
+                { 0, Read    },
+                { 1, Write   },
+                { 2, Flush   },
                 { 3, SetSize },
                 { 4, GetSize }
             };
 
             this.BaseStream = BaseStream;
+            this.HostPath   = HostPath;
         }
 
         public long Read(ServiceCtx Context)
@@ -39,6 +44,7 @@ namespace Ryujinx.Core.OsHle.Objects.FspSrv
             byte[] Data = new byte[Size];
 
             BaseStream.Seek(Offset, SeekOrigin.Begin);
+
             int ReadSize = BaseStream.Read(Data, 0, (int)Size);
 
             AMemoryHelper.WriteBytes(Context.Memory, Position, Data);
@@ -64,16 +70,26 @@ namespace Ryujinx.Core.OsHle.Objects.FspSrv
             return 0;
         }
 
-        public long GetSize(ServiceCtx Context)
+        public long Flush(ServiceCtx Context)
         {
-            Context.ResponseData.Write(BaseStream.Length);
+            BaseStream.Flush();
+
             return 0;
         }
 
         public long SetSize(ServiceCtx Context)
         {
             long Size = Context.RequestData.ReadInt64();
+
             BaseStream.SetLength(Size);
+
+            return 0;
+        }
+
+        public long GetSize(ServiceCtx Context)
+        {
+            Context.ResponseData.Write(BaseStream.Length);
+
             return 0;
         }
 
@@ -87,6 +103,8 @@ namespace Ryujinx.Core.OsHle.Objects.FspSrv
             if (disposing && BaseStream != null)
             {
                 BaseStream.Dispose();
+
+                Disposed?.Invoke(this, EventArgs.Empty);
             }
         }
     }
diff --git a/Ryujinx.Core/OsHle/Objects/FspSrv/IFileSystem.cs b/Ryujinx.Core/OsHle/Objects/FspSrv/IFileSystem.cs
index 68b15845..e18c1daf 100644
--- a/Ryujinx.Core/OsHle/Objects/FspSrv/IFileSystem.cs
+++ b/Ryujinx.Core/OsHle/Objects/FspSrv/IFileSystem.cs
@@ -1,8 +1,10 @@
 using ChocolArm64.Memory;
 using Ryujinx.Core.OsHle.Ipc;
+using System;
 using System.Collections.Generic;
 using System.IO;
 
+using static Ryujinx.Core.OsHle.Objects.ErrorCode;
 using static Ryujinx.Core.OsHle.Objects.ObjHelper;
 
 namespace Ryujinx.Core.OsHle.Objects.FspSrv
@@ -13,153 +15,214 @@ namespace Ryujinx.Core.OsHle.Objects.FspSrv
 
         public IReadOnlyDictionary<int, ServiceProcessRequest> Commands => m_Commands;
 
+        private HashSet<string> OpenPaths;
+
         private string Path;
 
         public IFileSystem(string Path)
         {
-            //TODO: implement.
             m_Commands = new Dictionary<int, ServiceProcessRequest>()
             {
-                {  0, CreateFile   },
-                {  1, DeleteFile   },
-                {  2, CreateDirectory },
-                {  3, DeleteDirectory },
+                {  0, CreateFile                 },
+                {  1, DeleteFile                 },
+                {  2, CreateDirectory            },
+                {  3, DeleteDirectory            },
                 {  4, DeleteDirectoryRecursively },
-                {  5, RenameFile },
-                {  6, RenameDirectory },
-                {  7, GetEntryType },
-                {  8, OpenFile     },
-                {  9, OpenDirectory },
-                { 10, Commit       },
-                //{ 11, GetFreeSpaceSize },
-                //{ 12, GetTotalSpaceSize },
-                //{ 13, CleanDirectoryRecursively },
-                //{ 14, GetFileTimeStampRaw }
+                {  5, RenameFile                 },
+                {  6, RenameDirectory            },
+                {  7, GetEntryType               },
+                {  8, OpenFile                   },
+                {  9, OpenDirectory              },
+                { 10, Commit                     },
+                { 11, GetFreeSpaceSize           },
+                { 12, GetTotalSpaceSize          },
+                //{ 13, CleanDirectoryRecursively  },
+                //{ 14, GetFileTimeStampRaw        }
             };
 
+            OpenPaths = new HashSet<string>();
+
             this.Path = Path;
         }
 
         public long CreateFile(ServiceCtx Context)
         {
             long Position = Context.Request.PtrBuff[0].Position;
+
             string Name = AMemoryHelper.ReadAsciiString(Context.Memory, Position);
-            ulong Mode = Context.RequestData.ReadUInt64();
-            uint Size = Context.RequestData.ReadUInt32();
+
+            long Mode = Context.RequestData.ReadInt64();
+            int  Size = Context.RequestData.ReadInt32();
+
             string FileName = Context.Ns.VFs.GetFullPath(Path, Name);
 
-            if (FileName != null)
+            if (FileName == null)
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
+            }
+
+            if (File.Exists(FileName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyExists);
+            }
+
+            if (IsPathAlreadyInUse(FileName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
+            }
+
+            using (FileStream NewFile = File.Create(FileName))
             {
-                FileStream NewFile = File.Create(FileName);
                 NewFile.SetLength(Size);
-                NewFile.Close();
-                return 0;
             }
 
-            //TODO: Correct error code.
-            return -1;
+            return 0;
         }
 
         public long DeleteFile(ServiceCtx Context)
         {
             long Position = Context.Request.PtrBuff[0].Position;
+
             string Name = AMemoryHelper.ReadAsciiString(Context.Memory, Position);
+
             string FileName = Context.Ns.VFs.GetFullPath(Path, Name);
 
-            if (FileName != null)
+            if (!File.Exists(FileName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
+            }
+
+            if (IsPathAlreadyInUse(FileName))
             {
-                File.Delete(FileName);
-                return 0;
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
             }
 
-            //TODO: Correct error code.
-            return -1;
+            File.Delete(FileName);
+
+            return 0;
         }
 
         public long CreateDirectory(ServiceCtx Context)
         {
             long Position = Context.Request.PtrBuff[0].Position;
+
             string Name = AMemoryHelper.ReadAsciiString(Context.Memory, Position);
-            string FileName = Context.Ns.VFs.GetFullPath(Path, Name);
 
-            if (FileName != null)
+            string DirName = Context.Ns.VFs.GetFullPath(Path, Name);
+
+            if (DirName == null)
             {
-                Directory.CreateDirectory(FileName);
-                return 0;
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
             }
 
-            //TODO: Correct error code.
-            return -1;
-        }
-
-        public long DeleteDirectory(ServiceCtx Context)
-        {
-            long Position = Context.Request.PtrBuff[0].Position;
-            string Name = AMemoryHelper.ReadAsciiString(Context.Memory, Position);
-            string FileName = Context.Ns.VFs.GetFullPath(Path, Name);
+            if (Directory.Exists(DirName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyExists);
+            }
 
-            if (FileName != null)
+            if (IsPathAlreadyInUse(DirName))
             {
-                Directory.Delete(FileName);
-                return 0;
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
             }
 
-            // TODO: Correct error code.
-            return -1;
+            Directory.CreateDirectory(DirName);
+
+            return 0;
+        }
+
+        public long DeleteDirectory(ServiceCtx Context)
+        {
+            return DeleteDirectory(Context, false);
         }
 
         public long DeleteDirectoryRecursively(ServiceCtx Context)
         {
+            return DeleteDirectory(Context, true);
+        }
+
+        private long DeleteDirectory(ServiceCtx Context, bool Recursive)
+        {
             long Position = Context.Request.PtrBuff[0].Position;
+
             string Name = AMemoryHelper.ReadAsciiString(Context.Memory, Position);
-            string FileName = Context.Ns.VFs.GetFullPath(Path, Name);
 
-            if (FileName != null)
+            string DirName = Context.Ns.VFs.GetFullPath(Path, Name);
+
+            if (!Directory.Exists(DirName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
+            }
+
+            if (IsPathAlreadyInUse(DirName))
             {
-                Directory.Delete(FileName, true); // recursive = true
-                return 0;
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
             }
 
-            // TODO: Correct error code.
-            return -1;
+            Directory.Delete(DirName, Recursive);
+
+            return 0;
         }
 
         public long RenameFile(ServiceCtx Context)
         {
             long OldPosition = Context.Request.PtrBuff[0].Position;
             long NewPosition = Context.Request.PtrBuff[0].Position;
+
             string OldName = AMemoryHelper.ReadAsciiString(Context.Memory, OldPosition);
             string NewName = AMemoryHelper.ReadAsciiString(Context.Memory, NewPosition);
+
             string OldFileName = Context.Ns.VFs.GetFullPath(Path, OldName);
             string NewFileName = Context.Ns.VFs.GetFullPath(Path, NewName);
 
-            if (OldFileName != null && NewFileName != null)
+            if (!File.Exists(OldFileName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
+            }
+
+            if (File.Exists(NewFileName))
             {
-                File.Move(OldFileName, NewFileName);
-                return 0;
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyExists);
             }
 
-            // TODO: Correct error code.
-            return -1;
+            if (IsPathAlreadyInUse(OldFileName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
+            }
+
+            File.Move(OldFileName, NewFileName);
+
+            return 0;
         }
 
         public long RenameDirectory(ServiceCtx Context)
         {
             long OldPosition = Context.Request.PtrBuff[0].Position;
             long NewPosition = Context.Request.PtrBuff[0].Position;
+
             string OldName = AMemoryHelper.ReadAsciiString(Context.Memory, OldPosition);
             string NewName = AMemoryHelper.ReadAsciiString(Context.Memory, NewPosition);
+
             string OldDirName = Context.Ns.VFs.GetFullPath(Path, OldName);
             string NewDirName = Context.Ns.VFs.GetFullPath(Path, NewName);
 
-            if (OldDirName != null && NewDirName != null)
+            if (!Directory.Exists(OldDirName))
             {
-                Directory.Move(OldDirName, NewDirName);
-                return 0;
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
             }
 
-            // TODO: Correct error code.
-            return -1;
+            if (Directory.Exists(NewDirName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyExists);
+            }
+
+            if (IsPathAlreadyInUse(OldDirName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
+            }
+
+            Directory.Move(OldDirName, NewDirName);
+
+            return 0;
         }
 
         public long GetEntryType(ServiceCtx Context)
@@ -170,15 +233,20 @@ namespace Ryujinx.Core.OsHle.Objects.FspSrv
 
             string FileName = Context.Ns.VFs.GetFullPath(Path, Name);
 
-            if (FileName == null)
+            if (File.Exists(FileName))
             {
-                //TODO: Correct error code.
-                return -1;
+                Context.ResponseData.Write(1);
             }
+            else if (Directory.Exists(FileName))
+            {
+                Context.ResponseData.Write(0);
+            }
+            else
+            {
+                Context.ResponseData.Write(0);
 
-            bool IsFile = File.Exists(FileName);
-
-            Context.ResponseData.Write(IsFile ? 1 : 0);
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
+            }
 
             return 0;
         }
@@ -193,22 +261,21 @@ namespace Ryujinx.Core.OsHle.Objects.FspSrv
 
             string FileName = Context.Ns.VFs.GetFullPath(Path, Name);
 
-            if (FileName == null)
+            if (!File.Exists(FileName))
             {
-                //TODO: Correct error code.
-                return -1;
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
             }
 
-            if (File.Exists(FileName))
+            if (IsPathAlreadyInUse(FileName))
             {
-                FileStream Stream = new FileStream(FileName, FileMode.OpenOrCreate);
-                MakeObject(Context, new IFile(Stream));
-
-                return 0;
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
             }
 
-            //TODO: Correct error code.
-            return -1;
+            FileStream Stream = new FileStream(FileName, FileMode.Open);
+
+            MakeObject(Context, new IFile(Stream, FileName));
+
+            return 0;
         }
 
         public long OpenDirectory(ServiceCtx Context)
@@ -221,27 +288,87 @@ namespace Ryujinx.Core.OsHle.Objects.FspSrv
 
             string DirName = Context.Ns.VFs.GetFullPath(Path, Name);
 
-            if(DirName != null)
+            if (!Directory.Exists(DirName))
             {
-                if (Directory.Exists(DirName))
-                {
-                    MakeObject(Context, new IDirectory(DirName, FilterFlags));
-                    return 0;
-                }
-                else
-                {
-                    // TODO: correct error code.
-                    return -1;
-                }
+                return MakeError(ErrorModule.Fs, FsErr.PathDoesNotExist);
             }
 
-            // TODO: Correct error code.
-            return -1;
+            if (IsPathAlreadyInUse(DirName))
+            {
+                return MakeError(ErrorModule.Fs, FsErr.PathAlreadyInUse);
+            }
+
+            IDirectory DirInterface = new IDirectory(DirName, FilterFlags);
+
+            DirInterface.Disposed += RemoveDirectoryInUse;
+
+            lock (OpenPaths)
+            {
+                OpenPaths.Add(DirName);
+            }
+
+            MakeObject(Context, DirInterface);
+
+            return 0;
         }
 
         public long Commit(ServiceCtx Context)
         {
             return 0;
         }
+
+        public long GetFreeSpaceSize(ServiceCtx Context)
+        {
+            long Position = Context.Request.PtrBuff[0].Position;
+
+            string Name = AMemoryHelper.ReadAsciiString(Context.Memory, Position);
+
+            Context.ResponseData.Write(Context.Ns.VFs.GetDrive().AvailableFreeSpace);
+
+            return 0;
+        }
+
+        public long GetTotalSpaceSize(ServiceCtx Context)
+        {
+            long Position = Context.Request.PtrBuff[0].Position;
+
+            string Name = AMemoryHelper.ReadAsciiString(Context.Memory, Position);
+
+            Context.ResponseData.Write(Context.Ns.VFs.GetDrive().TotalSize);
+
+            return 0;
+        }
+
+        private bool IsPathAlreadyInUse(string Path)
+        {
+            lock (OpenPaths)
+            {
+                return OpenPaths.Contains(Path);
+            }
+        }
+
+        private void RemoveFileInUse(object sender, EventArgs e)
+        {
+            IFile FileInterface = (IFile)sender;
+
+            lock (OpenPaths)
+            {
+                FileInterface.Disposed -= RemoveDirectoryInUse;
+
+                OpenPaths.Remove(FileInterface.HostPath);
+            }
+        }
+
+        private void RemoveDirectoryInUse(object sender, EventArgs e)
+        {
+            IDirectory DirInterface = (IDirectory)sender;
+
+            lock (OpenPaths)
+            {
+                DirInterface.Disposed -= RemoveDirectoryInUse;
+
+                OpenPaths.Remove(DirInterface.HostPath);
+            }
+        }
     }
 }
\ No newline at end of file
diff --git a/Ryujinx.Core/OsHle/Objects/Hid/IActiveVibrationDeviceList.cs b/Ryujinx.Core/OsHle/Objects/Hid/IActiveVibrationDeviceList.cs
new file mode 100644
index 00000000..1f0c8592
--- /dev/null
+++ b/Ryujinx.Core/OsHle/Objects/Hid/IActiveVibrationDeviceList.cs
@@ -0,0 +1,18 @@
+using Ryujinx.Core.OsHle.Handles;
+using Ryujinx.Core.OsHle.Ipc;
+using System.Collections.Generic;
+
+namespace Ryujinx.Core.OsHle.Objects.Hid
+{
+    class IActiveApplicationDeviceList : IIpcInterface
+    {
+        private Dictionary<int, ServiceProcessRequest> m_Commands;
+
+        public IReadOnlyDictionary<int, ServiceProcessRequest> Commands => m_Commands;
+
+        public IActiveApplicationDeviceList()
+        {
+            m_Commands = new Dictionary<int, ServiceProcessRequest>() { };
+        }
+    }
+}
\ No newline at end of file
diff --git a/Ryujinx.Core/OsHle/Objects/Hid/IAppletResource.cs b/Ryujinx.Core/OsHle/Objects/Hid/IAppletResource.cs
index d6e8947b..7d56d04b 100644
--- a/Ryujinx.Core/OsHle/Objects/Hid/IAppletResource.cs
+++ b/Ryujinx.Core/OsHle/Objects/Hid/IAppletResource.cs
@@ -10,7 +10,7 @@ namespace Ryujinx.Core.OsHle.Objects.Hid
 
         public IReadOnlyDictionary<int, ServiceProcessRequest> Commands => m_Commands;
 
-        public HSharedMem Handle;
+        private HSharedMem Handle;
 
         public IAppletResource(HSharedMem Handle)
         {
diff --git a/Ryujinx.Core/OsHle/Services/ServiceHid.cs b/Ryujinx.Core/OsHle/Services/ServiceHid.cs
index 4b2e82ff..aed3e959 100644
--- a/Ryujinx.Core/OsHle/Services/ServiceHid.cs
+++ b/Ryujinx.Core/OsHle/Services/ServiceHid.cs
@@ -23,6 +23,13 @@ namespace Ryujinx.Core.OsHle.Services
             return 0;
         }
 
+        public static long HidGetSupportedNpadStyleSet(ServiceCtx Context)
+        {
+            Context.ResponseData.Write(0);
+
+            return 0;
+        }
+
         public static long HidSetSupportedNpadStyleSet(ServiceCtx Context)
         {
             long Unknown0 = Context.RequestData.ReadInt64();
@@ -52,5 +59,19 @@ namespace Ryujinx.Core.OsHle.Services
 
             return 0;
         }
+
+        public static long HidGetNpadJoyHoldType(ServiceCtx Context)
+        {
+            Context.ResponseData.Write(0L);
+
+            return 0;
+        }
+
+        public static long HidCreateActiveVibrationDeviceList(ServiceCtx Context)
+        {
+            MakeObject(Context, new IActiveApplicationDeviceList());
+
+            return 0;
+        }
     }
 }
\ No newline at end of file
diff --git a/Ryujinx.Core/OsHle/Svc/SvcSystem.cs b/Ryujinx.Core/OsHle/Svc/SvcSystem.cs
index 7f593c8f..40369b99 100644
--- a/Ryujinx.Core/OsHle/Svc/SvcSystem.cs
+++ b/Ryujinx.Core/OsHle/Svc/SvcSystem.cs
@@ -106,7 +106,7 @@ namespace Ryujinx.Core.OsHle.Svc
 
             if (Session != null)
             {
-                IpcHandler.IpcCall(Ns, Memory, Session, Cmd, CmdPtr, Handle);
+                IpcHandler.IpcCall(Ns, Memory, Session, Cmd, ThreadState.ThreadId, CmdPtr, Handle);
 
                 byte[] Response = AMemoryHelper.ReadBytes(Memory, CmdPtr, (int)Size);
 
diff --git a/Ryujinx.Core/VirtualFs.cs b/Ryujinx.Core/VirtualFs.cs
index 23c7285c..0c911116 100644
--- a/Ryujinx.Core/VirtualFs.cs
+++ b/Ryujinx.Core/VirtualFs.cs
@@ -37,7 +37,7 @@ namespace Ryujinx.Core
 
         public string GetGameSavesPath() => MakeDirAndGetFullPath(SavesPath);
 
-        private static string MakeDirAndGetFullPath(string Dir)
+        private string MakeDirAndGetFullPath(string Dir)
         {
             string FullPath = Path.Combine(GetBasePath(), Dir);
 
@@ -49,7 +49,12 @@ namespace Ryujinx.Core
             return FullPath;
         }
 
-        public static string GetBasePath()
+        public DriveInfo GetDrive()
+        {
+            return new DriveInfo(Path.GetPathRoot(GetBasePath()));
+        }
+
+        public string GetBasePath()
         {
             return Path.Combine(Directory.GetCurrentDirectory(), BasePath);
         }
diff --git a/Ryujinx/Ui/GLScreen.cs b/Ryujinx/Ui/GLScreen.cs
index 9c05953b..a100080e 100644
--- a/Ryujinx/Ui/GLScreen.cs
+++ b/Ryujinx/Ui/GLScreen.cs
@@ -154,7 +154,7 @@ vec3 get_scale_ratio() {
         (window_size.y * native_size.x) / (native_size.y * window_size.x),
         (window_size.x * native_size.y) / (native_size.x * window_size.y)
     );
-    return vec3(min(ratio, vec2(1, 1)), 1);
+    return vec3(min(ratio, vec2(1, 1)) * vec2(1, -1), 1);
 }
 
 void main(void) {