service/audren_u: Move revision testing code out of AudRenU

The revision querying facilities are used by more than just audren. e.g.
audio devices can use this to test whether or not USB audio output is
supported.

This will be used within the following change.

1 files changed, 10 insertions, 8 deletions

diff --git a/src/core/hle/service/audio/audren_u.h b/src/core/hle/service/audio/audren_u.h
index 6e17489ce..0f3aad501 100644
--- a/src/core/hle/service/audio/audren_u.h
+++ b/src/core/hle/service/audio/audren_u.h
@@ -30,16 +30,18 @@ private:
 
     void OpenAudioRendererImpl(Kernel::HLERequestContext& ctx);
 
-    enum class AudioFeatures : u32 {
-        Splitter,
-        PerformanceMetricsVersion2,
-        VariadicCommandBuffer,
-    };
-
-    bool IsFeatureSupported(AudioFeatures feature, u32_le revision) const;
-
     std::size_t audren_instance_count = 0;
     Core::System& system;
 };
 
+// Describes a particular audio feature that may be supported in a particular revision.
+enum class AudioFeatures : u32 {
+    Splitter,
+    PerformanceMetricsVersion2,
+    VariadicCommandBuffer,
+};
+
+// Tests if a particular audio feature is supported with a given audio revision.
+bool IsFeatureSupported(AudioFeatures feature, u32_le revision);
+
 } // namespace Service::Audio