comparison core/RTAudio.cpp @ 280:c55c6f6c233c prerelease

Added support for multiplexer capelet and command-line support for choosing PRU

 //
 // Returns 0 on success.
 
 int BeagleRT_initAudio(BeagleRTInitSettings *settings, void *userData)
 {
+	// Sanity checks
+	if(settings->pruNumber < 0 || settings->pruNumber > 1) {
+		cout << "Invalid PRU number " << settings->pruNumber << endl;
+		return -1;
+	}
+	if(settings->pruNumber != 1 && settings->numMuxChannels != 0) {
+		cout << "Incompatible settings: multiplexer can only be run using PRU 1\n";
+		return -1;
+	}
+	
 	rt_print_auto_init(1);
 
 	BeagleRT_setVerboseLevel(settings->verbose);
 	strncpy(gPRUFilename, settings->pruFilename, MAX_PRU_FILENAME_LENGTH);
 	gUserData = userData;

 	// Initialise the GPIO pins, including possibly the digital pins in the render routines
 	if(gPRU->prepareGPIO(1, 1)) {
 		cout << "Error: unable to prepare GPIO for PRU audio\n";
 		return 1;
 	}
-
+	
 	// Get the PRU memory buffers ready to go
-	if(gPRU->initialise(0, gContext.analogFrames, gContext.analogChannels, true)) {
+	if(gPRU->initialise(settings->pruNumber, gContext.analogFrames, gContext.analogChannels,
+		 				settings->numMuxChannels, true)) {
 		cout << "Error: unable to initialise PRU\n";
 		return 1;
 	}
 
 	// Prepare the audio codec, which clocks the whole system