Cleanup AudioFlinger

internal_filesystem/lib/mpos/audio/__init__.py

@@ -3,57 +3,3 @@
 # Simple routing: play_wav() -> I2S, play_rtttl() -> buzzer, record_wav() -> I2S mic
 
 from .audioflinger import AudioFlinger
-
-# Create singleton instance
-_instance = AudioFlinger.get()
-
-# Re-export stream type constants for convenience
-STREAM_MUSIC = AudioFlinger.STREAM_MUSIC
-STREAM_NOTIFICATION = AudioFlinger.STREAM_NOTIFICATION
-STREAM_ALARM = AudioFlinger.STREAM_ALARM
-
-# Re-export main API from singleton instance for backward compatibility
-init = _instance.init
-play_wav = _instance.play_wav
-play_rtttl = _instance.play_rtttl
-stop = _instance.stop
-pause = _instance.pause
-resume = _instance.resume
-set_volume = _instance.set_volume
-get_volume = _instance.get_volume
-is_playing = _instance.is_playing
-record_wav = _instance.record_wav
-is_recording = _instance.is_recording
-has_i2s = _instance.has_i2s
-has_buzzer = _instance.has_buzzer
-has_microphone = _instance.has_microphone
-
-__all__ = [
-    # Class
-    'AudioFlinger',
-    
-    # Stream types
-    'STREAM_MUSIC',
-    'STREAM_NOTIFICATION',
-    'STREAM_ALARM',
-
-    # Playback functions
-    'init',
-    'play_wav',
-    'play_rtttl',
-    'stop',
-    'pause',
-    'resume',
-    'set_volume',
-    'get_volume',
-    'is_playing',
-
-    # Recording functions
-    'record_wav',
-    'is_recording',
-
-    # Hardware checks
-    'has_i2s',
-    'has_buzzer',
-    'has_microphone',
-]

internal_filesystem/lib/mpos/audio/audioflinger.py

@@ -37,7 +37,7 @@ class AudioFlinger:
         if AudioFlinger._instance:
             return
         AudioFlinger._instance = self
-        
+
         self._i2s_pins = None          # I2S pin configuration dict (created per-stream)
         self._buzzer_instance = None   # PWM buzzer instance
         self._current_stream = None    # Currently playing stream
@@ -377,12 +377,11 @@ class AudioFlinger:
             bool: True if recording active, False otherwise
         """
         return self._current_recording is not None and self._current_recording.is_recording()
-
-
+ 
 # ============================================================================
-# Class methods that delegate to singleton instance
+# Class method forwarding to singleton instance
 # ============================================================================
-# Store original instance methods BEFORE we replace them with class methods
+# Store original instance methods before replacing them
 _original_methods = {}
 _methods_to_delegate = [
     'init', 'play_wav', 'play_rtttl', 'record_wav', 'stop', 'pause', 'resume',
@@ -393,10 +392,9 @@ _methods_to_delegate = [
 for method_name in _methods_to_delegate:
     _original_methods[method_name] = getattr(AudioFlinger, method_name)
 
-# Helper function to create delegating class methods
+# Helper to create delegating class methods
 def _make_class_method(method_name):
     """Create a class method that delegates to the singleton instance."""
-    # Capture the original method in the closure
     original_method = _original_methods[method_name]
     
     @classmethod
@@ -406,7 +404,7 @@ def _make_class_method(method_name):
     
     return class_method
 
-
 # Attach class methods to AudioFlinger
 for method_name in _methods_to_delegate:
     setattr(AudioFlinger, method_name, _make_class_method(method_name))
+