comparison include/RTAudio.h @ 0:8a575ba3ab52

Initial commit.

+/*
+ *  RTAudio.h
+ *
+ *  Central control code for hard real-time audio on BeagleBone Black
+ *  using PRU and Xenomai Linux extensions. This code began as part
+ *  of the Hackable Instruments project (EPSRC) at Queen Mary University
+ *  of London, 2013-14.
+ *
+ *  (c) 2014 Victor Zappi and Andrew McPherson
+ *  Queen Mary University of London
+ */
+
+
+#ifndef RTAUDIO_H_
+#define RTAUDIO_H_
+
+#include "render.h"
+
+// Useful constants
+#define DBOX_CAPE					// New custom cape
+
+#ifdef DBOX_CAPE
+#define CODEC_I2C_ADDRESS  0x18		// Address of TLV320AIC3104 codec
+#else
+#define CODEC_I2C_ADDRESS  0x1B		// Address of TLV320AIC3106 codec
+#endif
+
+enum {
+	kAmplifierMutePin = 61	// P8-26 controls amplifier mute
+};
+
+typedef void* AuxiliaryTask;	// Opaque data type to keep track of aux tasks
+
+// Flag that indicates when the audio will stop; can be read or
+// set by other components which should end at the same time as the audio
+extern bool gShouldStop;
+
+int initAudio(int periodSize, int useMatrix, void *userData,
+			  int codecI2CAddress = CODEC_I2C_ADDRESS, int ampMutePin = kAmplifierMutePin);
+int startAudio();
+void stopAudio();
+void cleanupAudio();
+
+AuxiliaryTask createAuxiliaryTaskLoop(void (*functionToCall)(void), int priority, const char *name);
+void scheduleAuxiliaryTask(AuxiliaryTask task);
+
+void setVerboseLevel(int level);
+
+#endif /* RTAUDIO_H_ */