Finish ISteadyClock implementation

Ryujinx.HLE/HOS/Horizon.cs

@@ -197,10 +197,10 @@ namespace Ryujinx.HLE.HOS
 
             ContentManager = new ContentManager(device);
 
-            // NOTE: Now we set the default internal offset of the steady clock like Nintendo does... even if it's strange this is accurate.
-            // TODO: use bpc:r and set:sys (and set external clock source id from settings)
-            DateTime UnixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
-            SteadyClockCore.Instance.SetInternalOffset(new TimeSpanType(((ulong)(DateTime.Now.ToUniversalTime() - UnixEpoch).TotalSeconds) * 1000000000));
+            // TODO: use set:sys (and set external clock source id from settings)
+            // TODO: use "time!standard_steady_clock_rtc_update_interval_minutes" and implement a worker thread to be accurate.
+            SteadyClockCore.Instance.ConfigureSetupValue();
+
         }
 
         public void LoadCart(string exeFsDir, string romFsFile = null)

Ryujinx.HLE/HOS/Services/Bpc/IRtcManager.cs

@@ -0,0 +1,34 @@
+using System;
+
+namespace Ryujinx.HLE.HOS.Services.Bpc
+{
+    [Service("bpc:r")]
+    class IRtcManager : IpcService
+    {
+        public IRtcManager(ServiceCtx context) { }
+
+        [Command(0)]
+        // GetRtcTime() -> u64
+        public static ResultCode GetRtcTime(ServiceCtx context)
+        {
+            ResultCode result = GetExternalRtcValue(out ulong rtcValue);
+
+            if (result == ResultCode.Success)
+            {
+                context.ResponseData.Write(rtcValue);
+            }
+
+            return result;
+        }
+
+        public static ResultCode GetExternalRtcValue(out ulong rtcValue)
+        {
+            // TODO: emulate MAX77620/MAX77812
+            DateTime UnixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
+
+            rtcValue = (ulong)(DateTime.Now.ToUniversalTime() - UnixEpoch).TotalSeconds;
+
+            return ResultCode.Success;
+        }
+    }
+}

Ryujinx.HLE/HOS/Services/Time/Clock/SteadyClockCore.cs

@@ -1,4 +1,5 @@
 using Ryujinx.HLE.HOS.Kernel.Threading;
+using Ryujinx.HLE.HOS.Services.Bpc;
 using Ryujinx.HLE.Utilities;
 using System;
 
@@ -6,6 +7,9 @@ namespace Ryujinx.HLE.HOS.Services.Time.Clock
 {
     class SteadyClockCore
     {
+        private ulong        _setupValue;
+        private ResultCode   _setupResultCode;
+        private bool         _isRtcResetDetected;
         private TimeSpanType _testOffset;
         private TimeSpanType _internalOffset;
         private UInt128      _clockSourceId;
@@ -42,7 +46,7 @@ namespace Ryujinx.HLE.HOS.Services.Time.Clock
 
             TimeSpanType ticksTimeSpan = TimeSpanType.FromTicks(thread.Context.ThreadState.CntpctEl0, thread.Context.ThreadState.CntfrqEl0);
 
-            result.TimePoint = _internalOffset.ToSeconds() + ticksTimeSpan.ToSeconds();
+            result.TimePoint = _setupValue + ticksTimeSpan.ToSeconds();
 
             return result;
         }
@@ -57,6 +61,7 @@ namespace Ryujinx.HLE.HOS.Services.Time.Clock
             SteadyClockTimePoint result = GetTimePoint(thread);
 
             result.TimePoint += _testOffset.ToSeconds();
+            result.TimePoint += _internalOffset.ToSeconds();
 
             return result;
         }
@@ -71,16 +76,56 @@ namespace Ryujinx.HLE.HOS.Services.Time.Clock
             _testOffset = testOffset;
         }
 
-        // TODO: check if this is accurate
+        public ResultCode GetRtcValue(out ulong rtcValue)
+        {
+            return (ResultCode)IRtcManager.GetExternalRtcValue(out rtcValue);
+        }
+
+        public bool IsRtcResetDetected()
+        {
+            return _isRtcResetDetected;
+        }
+
+        public ResultCode GetSetupResultCode()
+        {
+            return _setupResultCode;
+        }
+
         public TimeSpanType GetInternalOffset()
         {
             return _internalOffset;
         }
 
-        // TODO: check if this is accurate
         public void SetInternalOffset(TimeSpanType internalOffset)
         {
             _internalOffset = internalOffset;
         }
+
+        public ResultCode GetSetupResultValue()
+        {
+            return _setupResultCode;
+        }
+
+        public void ConfigureSetupValue()
+        {
+            int retry = 0;
+
+            ResultCode result = ResultCode.Success;
+
+            while (retry < 20)
+            {
+                result = (ResultCode)IRtcManager.GetExternalRtcValue(out ulong rtcValue);
+
+                if (result == ResultCode.Success)
+                {
+                    _setupValue = rtcValue;
+                    break;
+                }
+
+                retry++;
+            }
+
+            _setupResultCode = result;
+        }
     }
 }

Ryujinx.HLE/HOS/Services/Time/ISteadyClock.cs

@@ -36,6 +36,38 @@ namespace Ryujinx.HLE.HOS.Services.Time
             return 0;
         }
 
+        [Command(100)] // 2.0.0+
+        // GetRtcValue() -> u64
+        public ResultCode GetRtcValue(ServiceCtx context)
+        {
+            ResultCode result = SteadyClockCore.Instance.GetRtcValue(out ulong rtcValue);
+
+            if (result == ResultCode.Success)
+            {
+                context.ResponseData.Write(rtcValue);
+            }
+
+            return result;
+        }
+
+        [Command(101)] // 2.0.0+
+        // IsRtcResetDetected() -> bool
+        public ResultCode IsRtcResetDetected(ServiceCtx context)
+        {
+            context.ResponseData.Write(SteadyClockCore.Instance.IsRtcResetDetected());
+
+            return ResultCode.Success;
+        }
+
+        [Command(102)] // 2.0.0+
+        // GetSetupResultValue() -> u32
+        public ResultCode GetSetupResultValue(ServiceCtx context)
+        {
+            context.ResponseData.Write((uint)SteadyClockCore.Instance.GetSetupResultCode());
+
+            return ResultCode.Success;
+        }
+
         [Command(200)] // 3.0.0+
         // GetInternalOffset() -> nn::TimeSpanType
         public ResultCode GetInternalOffset(ServiceCtx context)