Update AudioInput and AudioOutput Class Driver device mode demos to use a switch...
[pub/USBasp.git] / Demos / Device / ClassDriver / AudioOutput / AudioOutput.c
index e0c5734..4fad75f 100644 (file)
@@ -238,34 +238,32 @@ bool CALLBACK_Audio_Device_GetSetEndpointProperty(USB_ClassInfo_Audio_Device_t*
                /* Check the requested control to see if a supported control is being manipulated */
                if (EndpointControl == AUDIO_EPCONTROL_SamplingFreq)
                {
-                       /* Check the requested property to see if a supported property is being manipulated */
-                       if (EndpointProperty == AUDIO_REQ_SetCurrent)
+                       switch (EndpointProperty)
                        {
-                               /* Check if we are just testing for a valid property, or actually adjusting it */
-                               if (DataLength != NULL)
-                               {
-                                       /* Set the new sampling frequency to the value given by the host */
-                                       CurrentAudioSampleFrequency = (((uint32_t)Data[2] << 16) | ((uint32_t)Data[1] << 8) | (uint32_t)Data[0]);
-
-                                       /* Adjust sample reload timer to the new frequency */
-                                       OCR0A = ((F_CPU / 8 / CurrentAudioSampleFrequency) - 1);                                
-                               }
-                               
-                               return true;
-                       }
-                       else if (EndpointProperty == AUDIO_REQ_GetCurrent)
-                       {
-                               /* Check if we are just testing for a valid property, or actually reading it */
-                               if (DataLength != NULL)
-                               {
-                                       *DataLength = 3;
-
-                                       Data[2] = (CurrentAudioSampleFrequency >> 16);
-                                       Data[1] = (CurrentAudioSampleFrequency >> 8);
-                                       Data[0] = (CurrentAudioSampleFrequency &  0xFF);                                        
-                               }
-                               
-                               return true;
+                               case AUDIO_REQ_SetCurrent:
+                                       /* Check if we are just testing for a valid property, or actually adjusting it */
+                                       if (DataLength != NULL)
+                                       {
+                                               /* Set the new sampling frequency to the value given by the host */
+                                               CurrentAudioSampleFrequency = (((uint32_t)Data[2] << 16) | ((uint32_t)Data[1] << 8) | (uint32_t)Data[0]);
+
+                                               /* Adjust sample reload timer to the new frequency */
+                                               OCR0A = ((F_CPU / 8 / CurrentAudioSampleFrequency) - 1);                                
+                                       }
+                                       
+                                       return true;                            
+                               case AUDIO_REQ_GetCurrent:
+                                       /* Check if we are just testing for a valid property, or actually reading it */
+                                       if (DataLength != NULL)
+                                       {
+                                               *DataLength = 3;
+
+                                               Data[2] = (CurrentAudioSampleFrequency >> 16);
+                                               Data[1] = (CurrentAudioSampleFrequency >> 8);
+                                               Data[0] = (CurrentAudioSampleFrequency &  0xFF);                                        
+                                       }
+                                       
+                                       return true;
                        }
                }
        }