initial checkin of non-complete 'fast usb audio source' test program

the idea is to explore how various OSs USB-Audio drivers react if you
present them with an audio device of 512kHz or 1MHz sampling freq.

1 files changed, 18 insertions, 0 deletions

diff --git a/usb-fast-audio-source/fast_source.h b/usb-fast-audio-source/fast_source.h
new file mode 100644
index 0000000..1fc0b2b
--- /dev/null
+++ b/usb-fast-audio-source/fast_source.h
@@ -0,0 +1,18 @@
+
+#include <stdint.h>
+
+#define AUDDLoopRecDriver_SAMPLERATE	512000
+#define	AUDDLoopRecDriver_NUMCHANNELS	2
+#define AUDDLoopRecDriver_BYTESPERSAMPLE 2
+
+#define AUDDLoopRecDriver_SAMPLESPERFRAME (AUDDLoopRecDriver_SAMPLERATE / 16384 \
+					   * AUDDLoopRecDriver_NUMCHANNELS)
+
+#define AUDDLoopRecDriver_BYTESPERFRAME (AUDDLoopRecDriver_SAMPLESPERFRAME * \
+					 AUDDLoopRecDriver_BYTESPERSAMPLE)
+
+#include <usb/common/core/USBGenericRequest.h>
+
+void fastsource_init(void);
+void fastsource_start(uint8_t epnr);
+void fastsource_req_hdlr(const USBGenericRequest *request);