/*
LUFA Library
- Copyright (C) Dean Camera, 2011.
+ Copyright (C) Dean Camera, 2012.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
- Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+ Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
#if defined(USE_TEST_TONE)
static uint8_t SquareWaveSampleCount;
static int16_t CurrentWaveValue;
-
+
/* In test tone mode, generate a square wave at 1/256 of the sample rate */
if (SquareWaveSampleCount++ == 0xFF)
CurrentWaveValue ^= 0x8000;
-
+
/* Only generate audio if the board button is being pressed */
AudioSample = (Buttons_GetStatus() & BUTTONS_BUTTON1) ? CurrentWaveValue : 0;
#else
AudioSample -= (SAMPLE_MAX_RANGE / 2);
#endif
#endif
-
- Audio_Host_WriteSample16(&Speaker_Audio_Interface, AudioSample);
+
+ Audio_Host_WriteSample16(&Speaker_Audio_Interface, AudioSample);
Audio_Host_WriteSample16(&Speaker_Audio_Interface, AudioSample);
}
-
+
Pipe_SelectPipe(PrevPipe);
}
{
puts_P(PSTR("Error Enabling Audio Stream.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ USB_Host_SetDeviceConfiguration(0);
return;
}
-
+
USB_Audio_SampleFreq_t SampleRate = AUDIO_SAMPLE_FREQ(48000);
if (Audio_Host_GetSetEndpointProperty(&Speaker_Audio_Interface, Speaker_Audio_Interface.Config.DataOUTPipeNumber,
AUDIO_REQ_SetCurrent, AUDIO_EPCONTROL_SamplingFreq,
{
puts_P(PSTR("Error Setting Audio Sampling Frequency.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ USB_Host_SetDeviceConfiguration(0);
return;
}