Add HingeAngle sensor client

Expose the EC-calculated lid hinge angle (0-360 degrees) to Windows
via GUID_SensorType_HingeAngle / PKEY_SensorData_HingeAngle. The EC
already computes this from base+lid accelerometers and stores it at
EC_MEMMAP_ACC_DATA. The sensor is auto-detected when both base and
lid accelerometers are present.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: JohnAZoidberg

FrameworkSensors/Clients.h

@@ -260,3 +260,27 @@ typedef class _SimpleDeviceOrientationDevice : public _ComboDevice
     NTSTATUS                    UpdateCachedThreshold();
 
 } SimpleDeviceOrientationDevice, *PSimpleDeviceOrientationDevice;
+
+
+
+//
+// Hinge Angle ----------------------------------------------------------------
+//
+typedef class _HingeAngleDevice : public _ComboDevice
+{
+private:
+    typedef struct _HingeAngleSample
+    {
+        FLOAT   Angle;
+    } HingeAngleSample;
+
+    HingeAngleSample    m_CachedThresholds;
+    HingeAngleSample    m_CachedData;
+    HingeAngleSample    m_LastSample;
+
+public:
+    NTSTATUS            Initialize(_In_ WDFDEVICE Device, _In_ SENSOROBJECT SensorObj);
+    NTSTATUS            GetData(_In_ HANDLE Device);
+    NTSTATUS            UpdateCachedThreshold();
+
+} HingeAngleDevice, *PHingeAngleDevice;

FrameworkSensors/Device.cpp

@@ -28,6 +28,7 @@
 
 typedef enum {
     SENSOR_KIND_ACCELEROMETER,
+    SENSOR_KIND_HINGEANGLE,
     SENSOR_KIND_ALS,
 } SensorKind;
 
@@ -60,6 +61,7 @@ void AllocateDeviceAtIndex(
     switch (SensorKinds[Index])
     {
         case SENSOR_KIND_ACCELEROMETER: *ppDevice = new(*ppDevice) AccelerometerDevice; break;
+        case SENSOR_KIND_HINGEANGLE:    *ppDevice = new(*ppDevice) HingeAngleDevice; break;
         case SENSOR_KIND_ALS:           *ppDevice = new(*ppDevice) AlsDevice; break;
         default: break;
     }
@@ -255,6 +257,11 @@ OnPrepareHardware(
                 SensorSizes[SensorInstanceCount] = sizeof(AccelerometerDevice);
                 SensorKinds[SensorInstanceCount] = SENSOR_KIND_ACCELEROMETER;
                 SensorInstanceCount++;
+
+                TraceInformation("COMBO %!FUNC! Detected hinge angle (base+lid accels present)");
+                SensorSizes[SensorInstanceCount] = sizeof(HingeAngleDevice);
+                SensorKinds[SensorInstanceCount] = SENSOR_KIND_HINGEANGLE;
+                SensorInstanceCount++;
             }
         }
     }

FrameworkSensors/FrameworkSensors.vcxproj

@@ -80,7 +80,7 @@
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" />
   </ImportGroup>
   <ItemGroup Label="WrappedTaskItems">
-    <ClCompile Include="AlsClient.cpp; Clients.cpp; device.cpp; driver.cpp; EcCommunication.cpp; SimpleDeviceOrientationClient.cpp; AccelerometerClient.cpp; ">
+    <ClCompile Include="AlsClient.cpp; Clients.cpp; device.cpp; driver.cpp; EcCommunication.cpp; SimpleDeviceOrientationClient.cpp; AccelerometerClient.cpp; HingeAngleClient.cpp; ">
       <WppEnabled>true</WppEnabled>
       <WppDllMacro>true</WppDllMacro>
       <WppModuleName>FrameworkSensors</WppModuleName>