1 files changed, 247 insertions, 0 deletions
diff --git a/src/Ryujinx.HLE/HOS/Services/Settings/ISettingsServer.cs b/src/Ryujinx.HLE/HOS/Services/Settings/ISettingsServer.cs
new file mode 100644
index 00000000..17e9ec68
--- /dev/null
+++ b/src/Ryujinx.HLE/HOS/Services/Settings/ISettingsServer.cs
@@ -0,0 +1,247 @@
+using Ryujinx.Common.Logging;
+using Ryujinx.HLE.HOS.SystemState;
+using System;
+using System.Text;
+
+namespace Ryujinx.HLE.HOS.Services.Settings
+{
+    [Service("set")]
+    class ISettingsServer : IpcService
+    {
+        public ISettingsServer(ServiceCtx context) { }
+
+        [CommandCmif(0)]
+        // GetLanguageCode() -> nn::settings::LanguageCode
+        public ResultCode GetLanguageCode(ServiceCtx context)
+        {
+            context.ResponseData.Write(context.Device.System.State.DesiredLanguageCode);
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(1)]
+        // GetAvailableLanguageCodes() -> (u32, buffer<nn::settings::LanguageCode, 0xa>)
+        public ResultCode GetAvailableLanguageCodes(ServiceCtx context)
+        {
+            return GetAvailableLanguagesCodesImpl(
+                    context,
+                    context.Request.RecvListBuff[0].Position,
+                    context.Request.RecvListBuff[0].Size,
+                    0xF);
+        }
+
+        [CommandCmif(2)] // 4.0.0+
+        // MakeLanguageCode(nn::settings::Language language_index) -> nn::settings::LanguageCode
+        public ResultCode MakeLanguageCode(ServiceCtx context)
+        {
+            int languageIndex = context.RequestData.ReadInt32();
+
+            if ((uint)languageIndex >= (uint)SystemStateMgr.LanguageCodes.Length)
+            {
+                return ResultCode.LanguageOutOfRange;
+            }
+
+            context.ResponseData.Write(SystemStateMgr.GetLanguageCode(languageIndex));
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(3)]
+        // GetAvailableLanguageCodeCount() -> u32
+        public ResultCode GetAvailableLanguageCodeCount(ServiceCtx context)
+        {
+            context.ResponseData.Write(Math.Min(SystemStateMgr.LanguageCodes.Length, 0xF));
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(4)]
+        // GetRegionCode() -> u32 nn::settings::RegionCode
+        public ResultCode GetRegionCode(ServiceCtx context)
+        {
+            // NOTE: Service mount 0x8000000000000050 savedata and read the region code here.
+
+            RegionCode regionCode = (RegionCode)context.Device.System.State.DesiredRegionCode;
+
+            if (regionCode < RegionCode.Min || regionCode > RegionCode.Max)
+            {
+                regionCode = RegionCode.USA;
+            }
+
+            context.ResponseData.Write((uint)regionCode);
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(5)]
+        // GetAvailableLanguageCodes2() -> (u32, buffer<nn::settings::LanguageCode, 6>)
+        public ResultCode GetAvailableLanguageCodes2(ServiceCtx context)
+        {
+            return GetAvailableLanguagesCodesImpl(
+                    context,
+                    context.Request.ReceiveBuff[0].Position,
+                    context.Request.ReceiveBuff[0].Size,
+                    SystemStateMgr.LanguageCodes.Length);
+        }
+
+        [CommandCmif(6)]
+        // GetAvailableLanguageCodeCount2() -> u32
+        public ResultCode GetAvailableLanguageCodeCount2(ServiceCtx context)
+        {
+            context.ResponseData.Write(SystemStateMgr.LanguageCodes.Length);
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(7)] // 4.0.0+
+        // GetKeyCodeMap() -> buffer<nn::kpr::KeyCodeMap, 0x16>
+        public ResultCode GetKeyCodeMap(ServiceCtx context)
+        {
+            return GetKeyCodeMapImpl(context, 1);
+        }
+
+        [CommandCmif(8)] // 5.0.0+
+        // GetQuestFlag() -> bool
+        public ResultCode GetQuestFlag(ServiceCtx context)
+        {
+            context.ResponseData.Write(false);
+
+            Logger.Stub?.PrintStub(LogClass.ServiceSet);
+
+            return ResultCode.Success;
+        }
+
+        [CommandCmif(9)] // 6.0.0+
+        // GetKeyCodeMap2() -> buffer<nn::kpr::KeyCodeMap, 0x16>
+        public ResultCode GetKeyCodeMap2(ServiceCtx context)
+        {
+            return GetKeyCodeMapImpl(context, 2);
+        }
+
+        [CommandCmif(11)] // 10.1.0+
+        // GetDeviceNickName() -> buffer<nn::settings::system::DeviceNickName, 0x16>
+        public ResultCode GetDeviceNickName(ServiceCtx context)
+        {
+            ulong deviceNickNameBufferPosition = context.Request.ReceiveBuff[0].Position;
+            ulong deviceNickNameBufferSize     = context.Request.ReceiveBuff[0].Size;
+
+            if (deviceNickNameBufferPosition == 0)
+            {
+                return ResultCode.NullDeviceNicknameBuffer;
+            }
+
+            if (deviceNickNameBufferSize != 0x80)
+            {
+                Logger.Warning?.Print(LogClass.ServiceSet, "Wrong buffer size");
+            }
+
+            context.Memory.Write(deviceNickNameBufferPosition, Encoding.ASCII.GetBytes(context.Device.System.State.DeviceNickName + '\0'));
+
+            return ResultCode.Success;
+        }
+
+        private ResultCode GetKeyCodeMapImpl(ServiceCtx context, int version)
+        {
+            if (context.Request.ReceiveBuff[0].Size != 0x1000)
+            {
+                Logger.Warning?.Print(LogClass.ServiceSet, "Wrong buffer size");
+            }
+
+            byte[] keyCodeMap;
+
+            switch ((KeyboardLayout)context.Device.System.State.DesiredKeyboardLayout)
+            {
+                case KeyboardLayout.EnglishUs:
+
+                    long langCode = context.Device.System.State.DesiredLanguageCode;
+
+                    if (langCode == 0x736e61482d687a) // Zh-Hans
+                    {
+                        keyCodeMap = KeyCodeMaps.ChineseSimplified;
+                    }
+                    else if (langCode == 0x746e61482d687a) // Zh-Hant
+                    {
+                        keyCodeMap = KeyCodeMaps.ChineseTraditional;
+                    }
+                    else
+                    {
+                        keyCodeMap = KeyCodeMaps.EnglishUk;
+                    }
+
+                    break;
+                case KeyboardLayout.EnglishUsInternational:
+                    keyCodeMap = KeyCodeMaps.EnglishUsInternational;
+                    break;
+                case KeyboardLayout.EnglishUk:
+                    keyCodeMap = KeyCodeMaps.EnglishUk;
+                    break;
+                case KeyboardLayout.French:
+                    keyCodeMap = KeyCodeMaps.French;
+                    break;
+                case KeyboardLayout.FrenchCa:
+                    keyCodeMap = KeyCodeMaps.FrenchCa;
+                    break;
+                case KeyboardLayout.Spanish:
+                    keyCodeMap = KeyCodeMaps.Spanish;
+                    break;
+                case KeyboardLayout.SpanishLatin:
+                    keyCodeMap = KeyCodeMaps.SpanishLatin;
+                    break;
+                case KeyboardLayout.German:
+                    keyCodeMap = KeyCodeMaps.German;
+                    break;
+                case KeyboardLayout.Italian:
+                    keyCodeMap = KeyCodeMaps.Italian;
+                    break;
+                case KeyboardLayout.Portuguese:
+                    keyCodeMap = KeyCodeMaps.Portuguese;
+                    break;
+                case KeyboardLayout.Russian:
+                    keyCodeMap = KeyCodeMaps.Russian;
+                    break;
+                case KeyboardLayout.Korean:
+                    keyCodeMap = KeyCodeMaps.Korean;
+                    break;
+                case KeyboardLayout.ChineseSimplified:
+                    keyCodeMap = KeyCodeMaps.ChineseSimplified;
+                    break;
+                case KeyboardLayout.ChineseTraditional:
+                    keyCodeMap = KeyCodeMaps.ChineseTraditional;
+                    break;
+                default: // KeyboardLayout.Default
+                    keyCodeMap = KeyCodeMaps.Default;
+                    break;
+            }
+
+            context.Memory.Write(context.Request.ReceiveBuff[0].Position, keyCodeMap);
+
+            if (version == 1 && context.Device.System.State.DesiredKeyboardLayout == (long)KeyboardLayout.Default)
+            {
+                context.Memory.Write(context.Request.ReceiveBuff[0].Position, (byte)0x01);
+            }
+
+            return ResultCode.Success;
+        }
+
+        private ResultCode GetAvailableLanguagesCodesImpl(ServiceCtx context, ulong position, ulong size, int maxSize)
+        {
+            int count = (int)(size / 8);
+
+            if (count > maxSize)
+            {
+                count = maxSize;
+            }
+
+            for (int index = 0; index < count; index++)
+            {
+                context.Memory.Write(position, SystemStateMgr.GetLanguageCode(index));
+
+                position += 8;
+            }
+
+            context.ResponseData.Write(count);
+
+            return ResultCode.Success;
+        }
+    }
+}