AppConfigHeaders: Move out the last of the demo/app configurations into new AppConfig.h header files.

Demos/Device/ClassDriver/AudioInput/AudioInput.c

@@ -94,7 +94,7 @@ void SetupHardware(void)
 	USB_Init();
 
 	/* Start the ADC conversion in free running mode */
-	ADC_StartReading(ADC_REFERENCE_AVCC | ADC_RIGHT_ADJUSTED | MIC_IN_ADC_MUX_MASK);
+	ADC_StartReading(ADC_REFERENCE_AVCC | ADC_RIGHT_ADJUSTED | ADC_GET_CHANNEL_MASK(MIC_IN_ADC_CHANNEL));
 }
 
 /** ISR to handle the reloading of the data endpoint with the next sample. */

Demos/Device/ClassDriver/AudioInput/AudioInput.h

@@ -49,14 +49,9 @@
 		#include <LUFA/Drivers/USB/USB.h>
 
 		#include "Descriptors.h"
+		#include "Config/AppConfig.h"
 
 	/* Macros: */
-		/** ADC channel number for the microphone input. */
-		#define MIC_IN_ADC_CHANNEL        2
-
-		/** ADC channel MUX mask for the microphone input. */
-		#define MIC_IN_ADC_MUX_MASK       ADC_CHANNEL2
-
 		/** Maximum audio sample value for the microphone input. */
 		#define SAMPLE_MAX_RANGE          0xFFFF
 

Demos/Device/ClassDriver/AudioInput/AudioInput.txt

@@ -72,6 +72,11 @@
  *    <td><b>Description:</b></td>
  *   </tr>
  *   <tr>
+ *    <td>MIC_IN_ADC_CHANNEL</td>
+ *    <td>AppConfig.h</td>
+ *    <td>Sets the ADC channel used by the demo for the input audio samples from an attached microphone.</td>
+ *   </tr>
+ *   <tr>
  *    <td>USE_TEST_TONE</td>
  *    <td>AppConfig.h</td>
  *    <td>When defined, this alters the demo to produce a square wave test tone when the first board button is pressed

Demos/Device/ClassDriver/AudioInput/Config/AppConfig.h

@@ -43,6 +43,8 @@
 #ifndef _APP_CONFIG_H_
 #define _APP_CONFIG_H_
 
+	#define MIC_IN_ADC_CHANNEL               2
+
 	#define MICROPHONE_BIASED_TO_HALF_RAIL
 	#define USE_TEST_TONE