Add svn:eol-style property to source files, so that the line endings are correctly converted to the target system's native end of line style.
This commit is contained in:
Dean Camera
parent
e331b531c6
commit
071e02c6b6
839 changed files with 274562 additions and 274562 deletions
|
|
@ -1,201 +1,201 @@
|
|||
/*
|
||||
LUFA Library
|
||||
Copyright (C) Dean Camera, 2010.
|
||||
|
||||
dean [at] fourwalledcubicle [dot] com
|
||||
www.fourwalledcubicle.com
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright 2010 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
|
||||
without fee, provided that the above copyright notice appear in
|
||||
all copies and that both that the copyright notice and this
|
||||
permission notice and warranty disclaimer appear in supporting
|
||||
documentation, and that the name of the author not be used in
|
||||
advertising or publicity pertaining to distribution of the
|
||||
software without specific, written prior permission.
|
||||
|
||||
The author disclaim all warranties with regard to this
|
||||
software, including all implied warranties of merchantability
|
||||
and fitness. In no event shall the author be liable for any
|
||||
special, indirect or consequential damages or any damages
|
||||
whatsoever resulting from loss of use, data or profits, whether
|
||||
in an action of contract, negligence or other tortious action,
|
||||
arising out of or in connection with the use or performance of
|
||||
this software.
|
||||
*/
|
||||
|
||||
/** \file
|
||||
*
|
||||
* Main source file for the AudioOutput demo. This file contains the main tasks of
|
||||
* the demo and is responsible for the initial application hardware configuration.
|
||||
*/
|
||||
|
||||
#include "AudioOutput.h"
|
||||
|
||||
/** LUFA Audio Class driver interface configuration and state information. This structure is
|
||||
* passed to all Audio Class driver functions, so that multiple instances of the same class
|
||||
* within a device can be differentiated from one another.
|
||||
*/
|
||||
USB_ClassInfo_Audio_Device_t Speaker_Audio_Interface =
|
||||
{
|
||||
.Config =
|
||||
{
|
||||
.StreamingInterfaceNumber = 1,
|
||||
|
||||
.DataOUTEndpointNumber = AUDIO_STREAM_EPNUM,
|
||||
.DataOUTEndpointSize = AUDIO_STREAM_EPSIZE,
|
||||
},
|
||||
};
|
||||
|
||||
/** Main program entry point. This routine contains the overall program flow, including initial
|
||||
* setup of all components and the main program loop.
|
||||
*/
|
||||
int main(void)
|
||||
{
|
||||
SetupHardware();
|
||||
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
|
||||
sei();
|
||||
|
||||
for (;;)
|
||||
{
|
||||
ProcessNextSample();
|
||||
|
||||
Audio_Device_USBTask(&Speaker_Audio_Interface);
|
||||
USB_USBTask();
|
||||
}
|
||||
}
|
||||
|
||||
/** Configures the board hardware and chip peripherals for the demo's functionality. */
|
||||
void SetupHardware(void)
|
||||
{
|
||||
/* Disable watchdog if enabled by bootloader/fuses */
|
||||
MCUSR &= ~(1 << WDRF);
|
||||
wdt_disable();
|
||||
|
||||
/* Disable clock division */
|
||||
clock_prescale_set(clock_div_1);
|
||||
|
||||
/* Hardware Initialization */
|
||||
LEDs_Init();
|
||||
USB_Init();
|
||||
}
|
||||
|
||||
/** Processes the next audio sample by reading the last ADC conversion and writing it to the audio
|
||||
* interface, each time the sample reload timer period elapses to give a constant sample rate.
|
||||
*/
|
||||
void ProcessNextSample(void)
|
||||
{
|
||||
/* Check if the sample reload timer period has elapsed, and that the USB bus is ready for a new sample */
|
||||
if ((TIFR0 & (1 << OCF0A)) && Audio_Device_IsSampleReceived(&Speaker_Audio_Interface))
|
||||
{
|
||||
/* Clear the sample reload timer */
|
||||
TIFR0 |= (1 << OCF0A);
|
||||
|
||||
/* Retrieve the signed 16-bit left and right audio samples, convert to 8-bit */
|
||||
int8_t LeftSample_8Bit = (Audio_Device_ReadSample16(&Speaker_Audio_Interface) >> 8);
|
||||
int8_t RightSample_8Bit = (Audio_Device_ReadSample16(&Speaker_Audio_Interface) >> 8);
|
||||
|
||||
/* Mix the two channels together to produce a mono, 8-bit sample */
|
||||
int8_t MixedSample_8Bit = (((int16_t)LeftSample_8Bit + (int16_t)RightSample_8Bit) >> 1);
|
||||
|
||||
#if defined(AUDIO_OUT_MONO)
|
||||
/* Load the sample into the PWM timer channel */
|
||||
OCR3A = (MixedSample_8Bit ^ (1 << 7));
|
||||
#elif defined(AUDIO_OUT_STEREO)
|
||||
/* Load the dual 8-bit samples into the PWM timer channels */
|
||||
OCR3A = (LeftSample_8Bit ^ (1 << 7));
|
||||
OCR3B = (RightSample_8Bit ^ (1 << 7));
|
||||
#elif defined(AUDIO_OUT_PORTC)
|
||||
/* Load the 8-bit mixed sample into PORTC */
|
||||
PORTC = MixedSample_8Bit;
|
||||
#endif
|
||||
|
||||
uint8_t LEDMask = LEDS_NO_LEDS;
|
||||
|
||||
/* Turn on LEDs as the sample amplitude increases */
|
||||
if (MixedSample_8Bit > 16)
|
||||
LEDMask = (LEDS_LED1 | LEDS_LED2 | LEDS_LED3 | LEDS_LED4);
|
||||
else if (MixedSample_8Bit > 8)
|
||||
LEDMask = (LEDS_LED1 | LEDS_LED2 | LEDS_LED3);
|
||||
else if (MixedSample_8Bit > 4)
|
||||
LEDMask = (LEDS_LED1 | LEDS_LED2);
|
||||
else if (MixedSample_8Bit > 2)
|
||||
LEDMask = (LEDS_LED1);
|
||||
|
||||
LEDs_SetAllLEDs(LEDMask);
|
||||
}
|
||||
}
|
||||
|
||||
/** Event handler for the library USB Connection event. */
|
||||
void EVENT_USB_Device_Connect(void)
|
||||
{
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
|
||||
|
||||
/* Sample reload timer initialization */
|
||||
OCR0A = (F_CPU / 8 / AUDIO_SAMPLE_FREQUENCY) - 1;
|
||||
TCCR0A = (1 << WGM01); // CTC mode
|
||||
TCCR0B = (1 << CS01); // Fcpu/8 speed
|
||||
|
||||
#if defined(AUDIO_OUT_MONO)
|
||||
/* Set speaker as output */
|
||||
DDRC |= (1 << 6);
|
||||
#elif defined(AUDIO_OUT_STEREO)
|
||||
/* Set speakers as outputs */
|
||||
DDRC |= ((1 << 6) | (1 << 5));
|
||||
#elif defined(AUDIO_OUT_PORTC)
|
||||
/* Set PORTC as outputs */
|
||||
DDRC |= 0xFF;
|
||||
#endif
|
||||
|
||||
#if (defined(AUDIO_OUT_MONO) || defined(AUDIO_OUT_STEREO))
|
||||
/* PWM speaker timer initialization */
|
||||
TCCR3A = ((1 << WGM30) | (1 << COM3A1) | (1 << COM3A0)
|
||||
| (1 << COM3B1) | (1 << COM3B0)); // Set on match, clear on TOP
|
||||
TCCR3B = ((1 << WGM32) | (1 << CS30)); // Fast 8-Bit PWM, Fcpu speed
|
||||
#endif
|
||||
}
|
||||
|
||||
/** Event handler for the library USB Disconnection event. */
|
||||
void EVENT_USB_Device_Disconnect(void)
|
||||
{
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
|
||||
|
||||
/* Stop the sample reload timer */
|
||||
TCCR0B = 0;
|
||||
|
||||
#if (defined(AUDIO_OUT_MONO) || defined(AUDIO_OUT_STEREO))
|
||||
/* Stop the PWM generation timer */
|
||||
TCCR3B = 0;
|
||||
#endif
|
||||
|
||||
#if defined(AUDIO_OUT_MONO)
|
||||
/* Set speaker as input to reduce current draw */
|
||||
DDRC &= ~(1 << 6);
|
||||
#elif defined(AUDIO_OUT_STEREO)
|
||||
/* Set speakers as inputs to reduce current draw */
|
||||
DDRC &= ~((1 << 6) | (1 << 5));
|
||||
#elif defined(AUDIO_OUT_PORTC)
|
||||
/* Set PORTC low */
|
||||
PORTC = 0x00;
|
||||
#endif
|
||||
}
|
||||
|
||||
/** Event handler for the library USB Configuration Changed event. */
|
||||
void EVENT_USB_Device_ConfigurationChanged(void)
|
||||
{
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_READY);
|
||||
|
||||
if (!(Audio_Device_ConfigureEndpoints(&Speaker_Audio_Interface)))
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
||||
}
|
||||
|
||||
/** Event handler for the library USB Unhandled Control Request event. */
|
||||
void EVENT_USB_Device_UnhandledControlRequest(void)
|
||||
{
|
||||
Audio_Device_ProcessControlRequest(&Speaker_Audio_Interface);
|
||||
}
|
||||
/*
|
||||
LUFA Library
|
||||
Copyright (C) Dean Camera, 2010.
|
||||
|
||||
dean [at] fourwalledcubicle [dot] com
|
||||
www.fourwalledcubicle.com
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright 2010 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
|
||||
without fee, provided that the above copyright notice appear in
|
||||
all copies and that both that the copyright notice and this
|
||||
permission notice and warranty disclaimer appear in supporting
|
||||
documentation, and that the name of the author not be used in
|
||||
advertising or publicity pertaining to distribution of the
|
||||
software without specific, written prior permission.
|
||||
|
||||
The author disclaim all warranties with regard to this
|
||||
software, including all implied warranties of merchantability
|
||||
and fitness. In no event shall the author be liable for any
|
||||
special, indirect or consequential damages or any damages
|
||||
whatsoever resulting from loss of use, data or profits, whether
|
||||
in an action of contract, negligence or other tortious action,
|
||||
arising out of or in connection with the use or performance of
|
||||
this software.
|
||||
*/
|
||||
|
||||
/** \file
|
||||
*
|
||||
* Main source file for the AudioOutput demo. This file contains the main tasks of
|
||||
* the demo and is responsible for the initial application hardware configuration.
|
||||
*/
|
||||
|
||||
#include "AudioOutput.h"
|
||||
|
||||
/** LUFA Audio Class driver interface configuration and state information. This structure is
|
||||
* passed to all Audio Class driver functions, so that multiple instances of the same class
|
||||
* within a device can be differentiated from one another.
|
||||
*/
|
||||
USB_ClassInfo_Audio_Device_t Speaker_Audio_Interface =
|
||||
{
|
||||
.Config =
|
||||
{
|
||||
.StreamingInterfaceNumber = 1,
|
||||
|
||||
.DataOUTEndpointNumber = AUDIO_STREAM_EPNUM,
|
||||
.DataOUTEndpointSize = AUDIO_STREAM_EPSIZE,
|
||||
},
|
||||
};
|
||||
|
||||
/** Main program entry point. This routine contains the overall program flow, including initial
|
||||
* setup of all components and the main program loop.
|
||||
*/
|
||||
int main(void)
|
||||
{
|
||||
SetupHardware();
|
||||
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
|
||||
sei();
|
||||
|
||||
for (;;)
|
||||
{
|
||||
ProcessNextSample();
|
||||
|
||||
Audio_Device_USBTask(&Speaker_Audio_Interface);
|
||||
USB_USBTask();
|
||||
}
|
||||
}
|
||||
|
||||
/** Configures the board hardware and chip peripherals for the demo's functionality. */
|
||||
void SetupHardware(void)
|
||||
{
|
||||
/* Disable watchdog if enabled by bootloader/fuses */
|
||||
MCUSR &= ~(1 << WDRF);
|
||||
wdt_disable();
|
||||
|
||||
/* Disable clock division */
|
||||
clock_prescale_set(clock_div_1);
|
||||
|
||||
/* Hardware Initialization */
|
||||
LEDs_Init();
|
||||
USB_Init();
|
||||
}
|
||||
|
||||
/** Processes the next audio sample by reading the last ADC conversion and writing it to the audio
|
||||
* interface, each time the sample reload timer period elapses to give a constant sample rate.
|
||||
*/
|
||||
void ProcessNextSample(void)
|
||||
{
|
||||
/* Check if the sample reload timer period has elapsed, and that the USB bus is ready for a new sample */
|
||||
if ((TIFR0 & (1 << OCF0A)) && Audio_Device_IsSampleReceived(&Speaker_Audio_Interface))
|
||||
{
|
||||
/* Clear the sample reload timer */
|
||||
TIFR0 |= (1 << OCF0A);
|
||||
|
||||
/* Retrieve the signed 16-bit left and right audio samples, convert to 8-bit */
|
||||
int8_t LeftSample_8Bit = (Audio_Device_ReadSample16(&Speaker_Audio_Interface) >> 8);
|
||||
int8_t RightSample_8Bit = (Audio_Device_ReadSample16(&Speaker_Audio_Interface) >> 8);
|
||||
|
||||
/* Mix the two channels together to produce a mono, 8-bit sample */
|
||||
int8_t MixedSample_8Bit = (((int16_t)LeftSample_8Bit + (int16_t)RightSample_8Bit) >> 1);
|
||||
|
||||
#if defined(AUDIO_OUT_MONO)
|
||||
/* Load the sample into the PWM timer channel */
|
||||
OCR3A = (MixedSample_8Bit ^ (1 << 7));
|
||||
#elif defined(AUDIO_OUT_STEREO)
|
||||
/* Load the dual 8-bit samples into the PWM timer channels */
|
||||
OCR3A = (LeftSample_8Bit ^ (1 << 7));
|
||||
OCR3B = (RightSample_8Bit ^ (1 << 7));
|
||||
#elif defined(AUDIO_OUT_PORTC)
|
||||
/* Load the 8-bit mixed sample into PORTC */
|
||||
PORTC = MixedSample_8Bit;
|
||||
#endif
|
||||
|
||||
uint8_t LEDMask = LEDS_NO_LEDS;
|
||||
|
||||
/* Turn on LEDs as the sample amplitude increases */
|
||||
if (MixedSample_8Bit > 16)
|
||||
LEDMask = (LEDS_LED1 | LEDS_LED2 | LEDS_LED3 | LEDS_LED4);
|
||||
else if (MixedSample_8Bit > 8)
|
||||
LEDMask = (LEDS_LED1 | LEDS_LED2 | LEDS_LED3);
|
||||
else if (MixedSample_8Bit > 4)
|
||||
LEDMask = (LEDS_LED1 | LEDS_LED2);
|
||||
else if (MixedSample_8Bit > 2)
|
||||
LEDMask = (LEDS_LED1);
|
||||
|
||||
LEDs_SetAllLEDs(LEDMask);
|
||||
}
|
||||
}
|
||||
|
||||
/** Event handler for the library USB Connection event. */
|
||||
void EVENT_USB_Device_Connect(void)
|
||||
{
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
|
||||
|
||||
/* Sample reload timer initialization */
|
||||
OCR0A = (F_CPU / 8 / AUDIO_SAMPLE_FREQUENCY) - 1;
|
||||
TCCR0A = (1 << WGM01); // CTC mode
|
||||
TCCR0B = (1 << CS01); // Fcpu/8 speed
|
||||
|
||||
#if defined(AUDIO_OUT_MONO)
|
||||
/* Set speaker as output */
|
||||
DDRC |= (1 << 6);
|
||||
#elif defined(AUDIO_OUT_STEREO)
|
||||
/* Set speakers as outputs */
|
||||
DDRC |= ((1 << 6) | (1 << 5));
|
||||
#elif defined(AUDIO_OUT_PORTC)
|
||||
/* Set PORTC as outputs */
|
||||
DDRC |= 0xFF;
|
||||
#endif
|
||||
|
||||
#if (defined(AUDIO_OUT_MONO) || defined(AUDIO_OUT_STEREO))
|
||||
/* PWM speaker timer initialization */
|
||||
TCCR3A = ((1 << WGM30) | (1 << COM3A1) | (1 << COM3A0)
|
||||
| (1 << COM3B1) | (1 << COM3B0)); // Set on match, clear on TOP
|
||||
TCCR3B = ((1 << WGM32) | (1 << CS30)); // Fast 8-Bit PWM, Fcpu speed
|
||||
#endif
|
||||
}
|
||||
|
||||
/** Event handler for the library USB Disconnection event. */
|
||||
void EVENT_USB_Device_Disconnect(void)
|
||||
{
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
|
||||
|
||||
/* Stop the sample reload timer */
|
||||
TCCR0B = 0;
|
||||
|
||||
#if (defined(AUDIO_OUT_MONO) || defined(AUDIO_OUT_STEREO))
|
||||
/* Stop the PWM generation timer */
|
||||
TCCR3B = 0;
|
||||
#endif
|
||||
|
||||
#if defined(AUDIO_OUT_MONO)
|
||||
/* Set speaker as input to reduce current draw */
|
||||
DDRC &= ~(1 << 6);
|
||||
#elif defined(AUDIO_OUT_STEREO)
|
||||
/* Set speakers as inputs to reduce current draw */
|
||||
DDRC &= ~((1 << 6) | (1 << 5));
|
||||
#elif defined(AUDIO_OUT_PORTC)
|
||||
/* Set PORTC low */
|
||||
PORTC = 0x00;
|
||||
#endif
|
||||
}
|
||||
|
||||
/** Event handler for the library USB Configuration Changed event. */
|
||||
void EVENT_USB_Device_ConfigurationChanged(void)
|
||||
{
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_READY);
|
||||
|
||||
if (!(Audio_Device_ConfigureEndpoints(&Speaker_Audio_Interface)))
|
||||
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
|
||||
}
|
||||
|
||||
/** Event handler for the library USB Unhandled Control Request event. */
|
||||
void EVENT_USB_Device_UnhandledControlRequest(void)
|
||||
{
|
||||
Audio_Device_ProcessControlRequest(&Speaker_Audio_Interface);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,75 +1,75 @@
|
|||
/*
|
||||
LUFA Library
|
||||
Copyright (C) Dean Camera, 2010.
|
||||
|
||||
dean [at] fourwalledcubicle [dot] com
|
||||
www.fourwalledcubicle.com
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright 2010 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
|
||||
without fee, provided that the above copyright notice appear in
|
||||
all copies and that both that the copyright notice and this
|
||||
permission notice and warranty disclaimer appear in supporting
|
||||
documentation, and that the name of the author not be used in
|
||||
advertising or publicity pertaining to distribution of the
|
||||
software without specific, written prior permission.
|
||||
|
||||
The author disclaim all warranties with regard to this
|
||||
software, including all implied warranties of merchantability
|
||||
and fitness. In no event shall the author be liable for any
|
||||
special, indirect or consequential damages or any damages
|
||||
whatsoever resulting from loss of use, data or profits, whether
|
||||
in an action of contract, negligence or other tortious action,
|
||||
arising out of or in connection with the use or performance of
|
||||
this software.
|
||||
*/
|
||||
|
||||
/** \file
|
||||
*
|
||||
* Header file for AudioOutput.c.
|
||||
*/
|
||||
|
||||
#ifndef _AUDIO_OUTPUT_H_
|
||||
#define _AUDIO_OUTPUT_H_
|
||||
|
||||
/* Includes: */
|
||||
#include <avr/io.h>
|
||||
#include <avr/wdt.h>
|
||||
#include <avr/power.h>
|
||||
#include <avr/interrupt.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include "Descriptors.h"
|
||||
|
||||
#include <LUFA/Version.h>
|
||||
#include <LUFA/Drivers/Board/LEDs.h>
|
||||
#include <LUFA/Drivers/USB/USB.h>
|
||||
#include <LUFA/Drivers/USB/Class/Audio.h>
|
||||
|
||||
/* Macros: */
|
||||
/** LED mask for the library LED driver, to indicate that the USB interface is not ready. */
|
||||
#define LEDMASK_USB_NOTREADY LEDS_LED1
|
||||
|
||||
/** LED mask for the library LED driver, to indicate that the USB interface is enumerating. */
|
||||
#define LEDMASK_USB_ENUMERATING (LEDS_LED2 | LEDS_LED3)
|
||||
|
||||
/** LED mask for the library LED driver, to indicate that the USB interface is ready. */
|
||||
#define LEDMASK_USB_READY (LEDS_LED2 | LEDS_LED4)
|
||||
|
||||
/** LED mask for the library LED driver, to indicate that an error has occurred in the USB interface. */
|
||||
#define LEDMASK_USB_ERROR (LEDS_LED1 | LEDS_LED3)
|
||||
|
||||
/* Function Prototypes: */
|
||||
void SetupHardware(void);
|
||||
void ProcessNextSample(void);
|
||||
|
||||
void EVENT_USB_Device_Connect(void);
|
||||
void EVENT_USB_Device_Disconnect(void);
|
||||
void EVENT_USB_Device_ConfigurationChanged(void);
|
||||
void EVENT_USB_Device_UnhandledControlRequest(void);
|
||||
|
||||
#endif
|
||||
/*
|
||||
LUFA Library
|
||||
Copyright (C) Dean Camera, 2010.
|
||||
|
||||
dean [at] fourwalledcubicle [dot] com
|
||||
www.fourwalledcubicle.com
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright 2010 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
|
||||
without fee, provided that the above copyright notice appear in
|
||||
all copies and that both that the copyright notice and this
|
||||
permission notice and warranty disclaimer appear in supporting
|
||||
documentation, and that the name of the author not be used in
|
||||
advertising or publicity pertaining to distribution of the
|
||||
software without specific, written prior permission.
|
||||
|
||||
The author disclaim all warranties with regard to this
|
||||
software, including all implied warranties of merchantability
|
||||
and fitness. In no event shall the author be liable for any
|
||||
special, indirect or consequential damages or any damages
|
||||
whatsoever resulting from loss of use, data or profits, whether
|
||||
in an action of contract, negligence or other tortious action,
|
||||
arising out of or in connection with the use or performance of
|
||||
this software.
|
||||
*/
|
||||
|
||||
/** \file
|
||||
*
|
||||
* Header file for AudioOutput.c.
|
||||
*/
|
||||
|
||||
#ifndef _AUDIO_OUTPUT_H_
|
||||
#define _AUDIO_OUTPUT_H_
|
||||
|
||||
/* Includes: */
|
||||
#include <avr/io.h>
|
||||
#include <avr/wdt.h>
|
||||
#include <avr/power.h>
|
||||
#include <avr/interrupt.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include "Descriptors.h"
|
||||
|
||||
#include <LUFA/Version.h>
|
||||
#include <LUFA/Drivers/Board/LEDs.h>
|
||||
#include <LUFA/Drivers/USB/USB.h>
|
||||
#include <LUFA/Drivers/USB/Class/Audio.h>
|
||||
|
||||
/* Macros: */
|
||||
/** LED mask for the library LED driver, to indicate that the USB interface is not ready. */
|
||||
#define LEDMASK_USB_NOTREADY LEDS_LED1
|
||||
|
||||
/** LED mask for the library LED driver, to indicate that the USB interface is enumerating. */
|
||||
#define LEDMASK_USB_ENUMERATING (LEDS_LED2 | LEDS_LED3)
|
||||
|
||||
/** LED mask for the library LED driver, to indicate that the USB interface is ready. */
|
||||
#define LEDMASK_USB_READY (LEDS_LED2 | LEDS_LED4)
|
||||
|
||||
/** LED mask for the library LED driver, to indicate that an error has occurred in the USB interface. */
|
||||
#define LEDMASK_USB_ERROR (LEDS_LED1 | LEDS_LED3)
|
||||
|
||||
/* Function Prototypes: */
|
||||
void SetupHardware(void);
|
||||
void ProcessNextSample(void);
|
||||
|
||||
void EVENT_USB_Device_Connect(void);
|
||||
void EVENT_USB_Device_Disconnect(void);
|
||||
void EVENT_USB_Device_ConfigurationChanged(void);
|
||||
void EVENT_USB_Device_UnhandledControlRequest(void);
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -1,96 +1,96 @@
|
|||
/** \file
|
||||
*
|
||||
* This file contains special DoxyGen information for the generation of the main page and other special
|
||||
* documentation pages. It is not a project source file.
|
||||
*/
|
||||
|
||||
/** \mainpage Audio Output Device Demo
|
||||
*
|
||||
* \section SSec_Compat Demo Compatibility:
|
||||
*
|
||||
* The following list indicates what microcontrollers are compatible with this demo.
|
||||
*
|
||||
* - Series 7 USB AVRs
|
||||
* - Series 6 USB AVRs
|
||||
* - Series 4 USB AVRs
|
||||
*
|
||||
* \section SSec_Info USB Information:
|
||||
*
|
||||
* The following table gives a rundown of the USB utilization of this demo.
|
||||
*
|
||||
* <table>
|
||||
* <tr>
|
||||
* <td><b>USB Mode:</b></td>
|
||||
* <td>Device</td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td><b>USB Class:</b></td>
|
||||
* <td>Audio Class</td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td><b>USB Subclass:</b></td>
|
||||
* <td>Standard Audio Device</td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td><b>Relevant Standards:</b></td>
|
||||
* <td>USBIF Audio Class Specification \n
|
||||
* USBIF Audio Class Terminal Types Specification \n
|
||||
* USBIF Audio Data Formats Specification</td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td><b>Usable Speeds:</b></td>
|
||||
* <td>Full Speed Mode</td>
|
||||
* </tr>
|
||||
* </table>
|
||||
*
|
||||
* \section SSec_Description Project Description:
|
||||
*
|
||||
* Audio demonstration application. This gives a simple reference
|
||||
* application for implementing a USB Audio Output device using the
|
||||
* basic USB Audio drivers in all modern OSes (i.e. no special drivers
|
||||
* required).
|
||||
*
|
||||
* On start-up the system will automatically enumerate and function
|
||||
* as a USB speaker. Outgoing audio will output in 8-bit PWM onto
|
||||
* the timer 3 output compare channel A for AUDIO_OUT_MONO mode, on
|
||||
* timer 3 channels A and B for AUDIO_OUT_STEREO and on PORTC as a signed
|
||||
* mono sample for AUDIO_OUT_PORTC. Audio output will also be indicated on
|
||||
* the board LEDs in all modes. Decouple audio outputs with a capacitor and
|
||||
* attach to a speaker to hear the audio.
|
||||
*
|
||||
* Under Windows, if a driver request dialogue pops up, select the option
|
||||
* to automatically install the appropriate drivers.
|
||||
*
|
||||
* \section SSec_Options Project Options
|
||||
*
|
||||
* The following defines can be found in this demo, which can control the demo behaviour when defined, or changed in value.
|
||||
*
|
||||
* <table>
|
||||
* <tr>
|
||||
* <td><b>Define Name:</b></td>
|
||||
* <td><b>Location:</b></td>
|
||||
* <td><b>Description:</b></td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td>AUDIO_OUT_STEREO</td>
|
||||
* <td>Makefile CDEFS</td>
|
||||
* <td>When defined, this outputs the audio samples in stereo to the timer output pins of the microcontroller.</td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td>AUDIO_OUT_MONO</td>
|
||||
* <td>Makefile CDEFS</td>
|
||||
* <td>When defined, this outputs the audio samples in mono to the timer output pin of the microcontroller.</td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td>AUDIO_OUT_PORTC</td>
|
||||
* <td>Makefile CDEFS</td>
|
||||
* <td>When defined, this outputs the audio samples in mono to port C of the microcontroller, for connection to an
|
||||
* external DAC.</td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td>AUDIO_SAMPLE_FREQUENCY</td>
|
||||
* <td>Descriptors.h</td>
|
||||
* <td>Gives the audio sample rate per channel for the audio stream, in Hz.</td>
|
||||
* </tr>
|
||||
* </table>
|
||||
*/
|
||||
/** \file
|
||||
*
|
||||
* This file contains special DoxyGen information for the generation of the main page and other special
|
||||
* documentation pages. It is not a project source file.
|
||||
*/
|
||||
|
||||
/** \mainpage Audio Output Device Demo
|
||||
*
|
||||
* \section SSec_Compat Demo Compatibility:
|
||||
*
|
||||
* The following list indicates what microcontrollers are compatible with this demo.
|
||||
*
|
||||
* - Series 7 USB AVRs
|
||||
* - Series 6 USB AVRs
|
||||
* - Series 4 USB AVRs
|
||||
*
|
||||
* \section SSec_Info USB Information:
|
||||
*
|
||||
* The following table gives a rundown of the USB utilization of this demo.
|
||||
*
|
||||
* <table>
|
||||
* <tr>
|
||||
* <td><b>USB Mode:</b></td>
|
||||
* <td>Device</td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td><b>USB Class:</b></td>
|
||||
* <td>Audio Class</td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td><b>USB Subclass:</b></td>
|
||||
* <td>Standard Audio Device</td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td><b>Relevant Standards:</b></td>
|
||||
* <td>USBIF Audio Class Specification \n
|
||||
* USBIF Audio Class Terminal Types Specification \n
|
||||
* USBIF Audio Data Formats Specification</td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td><b>Usable Speeds:</b></td>
|
||||
* <td>Full Speed Mode</td>
|
||||
* </tr>
|
||||
* </table>
|
||||
*
|
||||
* \section SSec_Description Project Description:
|
||||
*
|
||||
* Audio demonstration application. This gives a simple reference
|
||||
* application for implementing a USB Audio Output device using the
|
||||
* basic USB Audio drivers in all modern OSes (i.e. no special drivers
|
||||
* required).
|
||||
*
|
||||
* On start-up the system will automatically enumerate and function
|
||||
* as a USB speaker. Outgoing audio will output in 8-bit PWM onto
|
||||
* the timer 3 output compare channel A for AUDIO_OUT_MONO mode, on
|
||||
* timer 3 channels A and B for AUDIO_OUT_STEREO and on PORTC as a signed
|
||||
* mono sample for AUDIO_OUT_PORTC. Audio output will also be indicated on
|
||||
* the board LEDs in all modes. Decouple audio outputs with a capacitor and
|
||||
* attach to a speaker to hear the audio.
|
||||
*
|
||||
* Under Windows, if a driver request dialogue pops up, select the option
|
||||
* to automatically install the appropriate drivers.
|
||||
*
|
||||
* \section SSec_Options Project Options
|
||||
*
|
||||
* The following defines can be found in this demo, which can control the demo behaviour when defined, or changed in value.
|
||||
*
|
||||
* <table>
|
||||
* <tr>
|
||||
* <td><b>Define Name:</b></td>
|
||||
* <td><b>Location:</b></td>
|
||||
* <td><b>Description:</b></td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td>AUDIO_OUT_STEREO</td>
|
||||
* <td>Makefile CDEFS</td>
|
||||
* <td>When defined, this outputs the audio samples in stereo to the timer output pins of the microcontroller.</td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td>AUDIO_OUT_MONO</td>
|
||||
* <td>Makefile CDEFS</td>
|
||||
* <td>When defined, this outputs the audio samples in mono to the timer output pin of the microcontroller.</td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td>AUDIO_OUT_PORTC</td>
|
||||
* <td>Makefile CDEFS</td>
|
||||
* <td>When defined, this outputs the audio samples in mono to port C of the microcontroller, for connection to an
|
||||
* external DAC.</td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td>AUDIO_SAMPLE_FREQUENCY</td>
|
||||
* <td>Descriptors.h</td>
|
||||
* <td>Gives the audio sample rate per channel for the audio stream, in Hz.</td>
|
||||
* </tr>
|
||||
* </table>
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -1,314 +1,314 @@
|
|||
/*
|
||||
LUFA Library
|
||||
Copyright (C) Dean Camera, 2010.
|
||||
|
||||
dean [at] fourwalledcubicle [dot] com
|
||||
www.fourwalledcubicle.com
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright 2010 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
|
||||
without fee, provided that the above copyright notice appear in
|
||||
all copies and that both that the copyright notice and this
|
||||
permission notice and warranty disclaimer appear in supporting
|
||||
documentation, and that the name of the author not be used in
|
||||
advertising or publicity pertaining to distribution of the
|
||||
software without specific, written prior permission.
|
||||
|
||||
The author disclaim all warranties with regard to this
|
||||
software, including all implied warranties of merchantability
|
||||
and fitness. In no event shall the author be liable for any
|
||||
special, indirect or consequential damages or any damages
|
||||
whatsoever resulting from loss of use, data or profits, whether
|
||||
in an action of contract, negligence or other tortious action,
|
||||
arising out of or in connection with the use or performance of
|
||||
this software.
|
||||
*/
|
||||
|
||||
/** \file
|
||||
*
|
||||
* USB Device Descriptors, for library use when in USB device mode. Descriptors are special
|
||||
* computer-readable structures which the host requests upon device enumeration, to determine
|
||||
* the device's capabilities and functions.
|
||||
*/
|
||||
|
||||
#include "Descriptors.h"
|
||||
|
||||
/** Device descriptor structure. This descriptor, located in FLASH memory, describes the overall
|
||||
* device characteristics, including the supported USB version, control endpoint size and the
|
||||
* number of device configurations. The descriptor is read out by the USB host when the enumeration
|
||||
* process begins.
|
||||
*/
|
||||
USB_Descriptor_Device_t PROGMEM DeviceDescriptor =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device},
|
||||
|
||||
.USBSpecification = VERSION_BCD(02.00),
|
||||
.Class = 0x00,
|
||||
.SubClass = 0x00,
|
||||
.Protocol = 0x00,
|
||||
|
||||
.Endpoint0Size = FIXED_CONTROL_ENDPOINT_SIZE,
|
||||
|
||||
.VendorID = 0x03EB,
|
||||
.ProductID = 0x2046,
|
||||
.ReleaseNumber = 0x0000,
|
||||
|
||||
.ManufacturerStrIndex = 0x01,
|
||||
.ProductStrIndex = 0x02,
|
||||
.SerialNumStrIndex = NO_DESCRIPTOR,
|
||||
|
||||
.NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS
|
||||
};
|
||||
|
||||
/** Configuration descriptor structure. This descriptor, located in FLASH memory, describes the usage
|
||||
* of the device in one of its supported configurations, including information about any device interfaces
|
||||
* and endpoints. The descriptor is read out by the USB host during the enumeration process when selecting
|
||||
* a configuration so that the host may correctly communicate with the USB device.
|
||||
*/
|
||||
USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
|
||||
{
|
||||
.Config =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration},
|
||||
|
||||
.TotalConfigurationSize = sizeof(USB_Descriptor_Configuration_t),
|
||||
.TotalInterfaces = 2,
|
||||
|
||||
.ConfigurationNumber = 1,
|
||||
.ConfigurationStrIndex = NO_DESCRIPTOR,
|
||||
|
||||
.ConfigAttributes = (USB_CONFIG_ATTR_BUSPOWERED | USB_CONFIG_ATTR_SELFPOWERED),
|
||||
|
||||
.MaxPowerConsumption = USB_CONFIG_POWER_MA(100)
|
||||
},
|
||||
|
||||
.Audio_ControlInterface =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
|
||||
|
||||
.InterfaceNumber = 0,
|
||||
.AlternateSetting = 0,
|
||||
|
||||
.TotalEndpoints = 0,
|
||||
|
||||
.Class = 0x01,
|
||||
.SubClass = 0x01,
|
||||
.Protocol = 0x00,
|
||||
|
||||
.InterfaceStrIndex = NO_DESCRIPTOR
|
||||
},
|
||||
|
||||
.Audio_ControlInterface_SPC =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Audio_Interface_AC_t), .Type = DTYPE_AudioInterface},
|
||||
.Subtype = DSUBTYPE_Header,
|
||||
|
||||
.ACSpecification = VERSION_BCD(01.00),
|
||||
.TotalLength = (sizeof(USB_Audio_Interface_AC_t) +
|
||||
sizeof(USB_Audio_InputTerminal_t) +
|
||||
sizeof(USB_Audio_OutputTerminal_t)),
|
||||
|
||||
.InCollection = 1,
|
||||
.InterfaceNumbers = {1},
|
||||
},
|
||||
|
||||
.Audio_InputTerminal =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Audio_InputTerminal_t), .Type = DTYPE_AudioInterface},
|
||||
.Subtype = DSUBTYPE_InputTerminal,
|
||||
|
||||
.TerminalID = 0x01,
|
||||
.TerminalType = TERMINAL_STREAMING,
|
||||
.AssociatedOutputTerminal = 0x00,
|
||||
|
||||
.TotalChannels = 2,
|
||||
.ChannelConfig = (CHANNEL_LEFT_FRONT | CHANNEL_RIGHT_FRONT),
|
||||
|
||||
.ChannelStrIndex = NO_DESCRIPTOR,
|
||||
.TerminalStrIndex = NO_DESCRIPTOR
|
||||
},
|
||||
|
||||
.Audio_OutputTerminal =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Audio_OutputTerminal_t), .Type = DTYPE_AudioInterface},
|
||||
.Subtype = DSUBTYPE_OutputTerminal,
|
||||
|
||||
.TerminalID = 0x02,
|
||||
.TerminalType = TERMINAL_OUT_SPEAKER,
|
||||
.AssociatedInputTerminal = 0x00,
|
||||
|
||||
.SourceID = 0x01,
|
||||
|
||||
.TerminalStrIndex = NO_DESCRIPTOR
|
||||
},
|
||||
|
||||
.Audio_StreamInterface_Alt0 =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
|
||||
|
||||
.InterfaceNumber = 1,
|
||||
.AlternateSetting = 0,
|
||||
|
||||
.TotalEndpoints = 0,
|
||||
|
||||
.Class = 0x01,
|
||||
.SubClass = 0x02,
|
||||
.Protocol = 0x00,
|
||||
|
||||
.InterfaceStrIndex = NO_DESCRIPTOR
|
||||
},
|
||||
|
||||
.Audio_StreamInterface_Alt1 =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
|
||||
|
||||
.InterfaceNumber = 1,
|
||||
.AlternateSetting = 1,
|
||||
|
||||
.TotalEndpoints = 1,
|
||||
|
||||
.Class = 0x01,
|
||||
.SubClass = 0x02,
|
||||
.Protocol = 0x00,
|
||||
|
||||
.InterfaceStrIndex = NO_DESCRIPTOR
|
||||
},
|
||||
|
||||
.Audio_StreamInterface_SPC =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Audio_Interface_AS_t), .Type = DTYPE_AudioInterface},
|
||||
.Subtype = DSUBTYPE_General,
|
||||
|
||||
.TerminalLink = 0x01,
|
||||
|
||||
.FrameDelay = 1,
|
||||
.AudioFormat = 0x0001
|
||||
},
|
||||
|
||||
.Audio_AudioFormat =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Audio_Format_t), .Type = DTYPE_AudioInterface},
|
||||
.Subtype = DSUBTYPE_Format,
|
||||
|
||||
.FormatType = 0x01,
|
||||
.Channels = 0x02,
|
||||
|
||||
.SubFrameSize = 0x02,
|
||||
.BitResolution = 16,
|
||||
|
||||
.SampleFrequencyType = AUDIO_TOTAL_SAMPLE_RATES,
|
||||
.SampleFrequencies = {AUDIO_SAMPLE_FREQ(AUDIO_SAMPLE_FREQUENCY)}
|
||||
},
|
||||
|
||||
.Audio_StreamEndpoint =
|
||||
{
|
||||
.Endpoint =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Audio_StreamEndpoint_Std_t), .Type = DTYPE_Endpoint},
|
||||
|
||||
.EndpointAddress = (ENDPOINT_DESCRIPTOR_DIR_OUT | AUDIO_STREAM_EPNUM),
|
||||
.Attributes = (EP_TYPE_ISOCHRONOUS | ENDPOINT_ATTR_SYNC | ENDPOINT_USAGE_DATA),
|
||||
.EndpointSize = AUDIO_STREAM_EPSIZE,
|
||||
.PollingIntervalMS = 1
|
||||
},
|
||||
|
||||
.Refresh = 0,
|
||||
.SyncEndpointNumber = 0
|
||||
},
|
||||
|
||||
.Audio_StreamEndpoint_SPC =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Audio_StreamEndpoint_Spc_t), .Type = DTYPE_AudioEndpoint},
|
||||
.Subtype = DSUBTYPE_General,
|
||||
|
||||
.Attributes = EP_ACCEPTS_SMALL_PACKETS,
|
||||
|
||||
.LockDelayUnits = 0x00,
|
||||
.LockDelay = 0x0000
|
||||
}
|
||||
};
|
||||
|
||||
/** Language descriptor structure. This descriptor, located in FLASH memory, is returned when the host requests
|
||||
* the string descriptor with index 0 (the first index). It is actually an array of 16-bit integers, which indicate
|
||||
* via the language ID table available at USB.org what languages the device supports for its string descriptors.
|
||||
*/
|
||||
USB_Descriptor_String_t PROGMEM LanguageString =
|
||||
{
|
||||
.Header = {.Size = USB_STRING_LEN(1), .Type = DTYPE_String},
|
||||
|
||||
.UnicodeString = {LANGUAGE_ID_ENG}
|
||||
};
|
||||
|
||||
/** Manufacturer descriptor string. This is a Unicode string containing the manufacturer's details in human readable
|
||||
* form, and is read out upon request by the host when the appropriate string ID is requested, listed in the Device
|
||||
* Descriptor.
|
||||
*/
|
||||
USB_Descriptor_String_t PROGMEM ManufacturerString =
|
||||
{
|
||||
.Header = {.Size = USB_STRING_LEN(11), .Type = DTYPE_String},
|
||||
|
||||
.UnicodeString = L"Dean Camera"
|
||||
};
|
||||
|
||||
/** Product descriptor string. This is a Unicode string containing the product's details in human readable form,
|
||||
* and is read out upon request by the host when the appropriate string ID is requested, listed in the Device
|
||||
* Descriptor.
|
||||
*/
|
||||
USB_Descriptor_String_t PROGMEM ProductString =
|
||||
{
|
||||
.Header = {.Size = USB_STRING_LEN(19), .Type = DTYPE_String},
|
||||
|
||||
.UnicodeString = L"LUFA Audio Out Demo"
|
||||
};
|
||||
|
||||
/** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors"
|
||||
* documentation) by the application code so that the address and size of a requested descriptor can be given
|
||||
* to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function
|
||||
* is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the
|
||||
* USB host.
|
||||
*/
|
||||
uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, const uint8_t wIndex, void** const DescriptorAddress)
|
||||
{
|
||||
const uint8_t DescriptorType = (wValue >> 8);
|
||||
const uint8_t DescriptorNumber = (wValue & 0xFF);
|
||||
|
||||
void* Address = NULL;
|
||||
uint16_t Size = NO_DESCRIPTOR;
|
||||
|
||||
switch (DescriptorType)
|
||||
{
|
||||
case DTYPE_Device:
|
||||
Address = (void*)&DeviceDescriptor;
|
||||
Size = sizeof(USB_Descriptor_Device_t);
|
||||
break;
|
||||
case DTYPE_Configuration:
|
||||
Address = (void*)&ConfigurationDescriptor;
|
||||
Size = sizeof(USB_Descriptor_Configuration_t);
|
||||
break;
|
||||
case DTYPE_String:
|
||||
switch (DescriptorNumber)
|
||||
{
|
||||
case 0x00:
|
||||
Address = (void*)&LanguageString;
|
||||
Size = pgm_read_byte(&LanguageString.Header.Size);
|
||||
break;
|
||||
case 0x01:
|
||||
Address = (void*)&ManufacturerString;
|
||||
Size = pgm_read_byte(&ManufacturerString.Header.Size);
|
||||
break;
|
||||
case 0x02:
|
||||
Address = (void*)&ProductString;
|
||||
Size = pgm_read_byte(&ProductString.Header.Size);
|
||||
break;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
*DescriptorAddress = Address;
|
||||
return Size;
|
||||
}
|
||||
/*
|
||||
LUFA Library
|
||||
Copyright (C) Dean Camera, 2010.
|
||||
|
||||
dean [at] fourwalledcubicle [dot] com
|
||||
www.fourwalledcubicle.com
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright 2010 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
|
||||
without fee, provided that the above copyright notice appear in
|
||||
all copies and that both that the copyright notice and this
|
||||
permission notice and warranty disclaimer appear in supporting
|
||||
documentation, and that the name of the author not be used in
|
||||
advertising or publicity pertaining to distribution of the
|
||||
software without specific, written prior permission.
|
||||
|
||||
The author disclaim all warranties with regard to this
|
||||
software, including all implied warranties of merchantability
|
||||
and fitness. In no event shall the author be liable for any
|
||||
special, indirect or consequential damages or any damages
|
||||
whatsoever resulting from loss of use, data or profits, whether
|
||||
in an action of contract, negligence or other tortious action,
|
||||
arising out of or in connection with the use or performance of
|
||||
this software.
|
||||
*/
|
||||
|
||||
/** \file
|
||||
*
|
||||
* USB Device Descriptors, for library use when in USB device mode. Descriptors are special
|
||||
* computer-readable structures which the host requests upon device enumeration, to determine
|
||||
* the device's capabilities and functions.
|
||||
*/
|
||||
|
||||
#include "Descriptors.h"
|
||||
|
||||
/** Device descriptor structure. This descriptor, located in FLASH memory, describes the overall
|
||||
* device characteristics, including the supported USB version, control endpoint size and the
|
||||
* number of device configurations. The descriptor is read out by the USB host when the enumeration
|
||||
* process begins.
|
||||
*/
|
||||
USB_Descriptor_Device_t PROGMEM DeviceDescriptor =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device},
|
||||
|
||||
.USBSpecification = VERSION_BCD(02.00),
|
||||
.Class = 0x00,
|
||||
.SubClass = 0x00,
|
||||
.Protocol = 0x00,
|
||||
|
||||
.Endpoint0Size = FIXED_CONTROL_ENDPOINT_SIZE,
|
||||
|
||||
.VendorID = 0x03EB,
|
||||
.ProductID = 0x2046,
|
||||
.ReleaseNumber = 0x0000,
|
||||
|
||||
.ManufacturerStrIndex = 0x01,
|
||||
.ProductStrIndex = 0x02,
|
||||
.SerialNumStrIndex = NO_DESCRIPTOR,
|
||||
|
||||
.NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS
|
||||
};
|
||||
|
||||
/** Configuration descriptor structure. This descriptor, located in FLASH memory, describes the usage
|
||||
* of the device in one of its supported configurations, including information about any device interfaces
|
||||
* and endpoints. The descriptor is read out by the USB host during the enumeration process when selecting
|
||||
* a configuration so that the host may correctly communicate with the USB device.
|
||||
*/
|
||||
USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =
|
||||
{
|
||||
.Config =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration},
|
||||
|
||||
.TotalConfigurationSize = sizeof(USB_Descriptor_Configuration_t),
|
||||
.TotalInterfaces = 2,
|
||||
|
||||
.ConfigurationNumber = 1,
|
||||
.ConfigurationStrIndex = NO_DESCRIPTOR,
|
||||
|
||||
.ConfigAttributes = (USB_CONFIG_ATTR_BUSPOWERED | USB_CONFIG_ATTR_SELFPOWERED),
|
||||
|
||||
.MaxPowerConsumption = USB_CONFIG_POWER_MA(100)
|
||||
},
|
||||
|
||||
.Audio_ControlInterface =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
|
||||
|
||||
.InterfaceNumber = 0,
|
||||
.AlternateSetting = 0,
|
||||
|
||||
.TotalEndpoints = 0,
|
||||
|
||||
.Class = 0x01,
|
||||
.SubClass = 0x01,
|
||||
.Protocol = 0x00,
|
||||
|
||||
.InterfaceStrIndex = NO_DESCRIPTOR
|
||||
},
|
||||
|
||||
.Audio_ControlInterface_SPC =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Audio_Interface_AC_t), .Type = DTYPE_AudioInterface},
|
||||
.Subtype = DSUBTYPE_Header,
|
||||
|
||||
.ACSpecification = VERSION_BCD(01.00),
|
||||
.TotalLength = (sizeof(USB_Audio_Interface_AC_t) +
|
||||
sizeof(USB_Audio_InputTerminal_t) +
|
||||
sizeof(USB_Audio_OutputTerminal_t)),
|
||||
|
||||
.InCollection = 1,
|
||||
.InterfaceNumbers = {1},
|
||||
},
|
||||
|
||||
.Audio_InputTerminal =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Audio_InputTerminal_t), .Type = DTYPE_AudioInterface},
|
||||
.Subtype = DSUBTYPE_InputTerminal,
|
||||
|
||||
.TerminalID = 0x01,
|
||||
.TerminalType = TERMINAL_STREAMING,
|
||||
.AssociatedOutputTerminal = 0x00,
|
||||
|
||||
.TotalChannels = 2,
|
||||
.ChannelConfig = (CHANNEL_LEFT_FRONT | CHANNEL_RIGHT_FRONT),
|
||||
|
||||
.ChannelStrIndex = NO_DESCRIPTOR,
|
||||
.TerminalStrIndex = NO_DESCRIPTOR
|
||||
},
|
||||
|
||||
.Audio_OutputTerminal =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Audio_OutputTerminal_t), .Type = DTYPE_AudioInterface},
|
||||
.Subtype = DSUBTYPE_OutputTerminal,
|
||||
|
||||
.TerminalID = 0x02,
|
||||
.TerminalType = TERMINAL_OUT_SPEAKER,
|
||||
.AssociatedInputTerminal = 0x00,
|
||||
|
||||
.SourceID = 0x01,
|
||||
|
||||
.TerminalStrIndex = NO_DESCRIPTOR
|
||||
},
|
||||
|
||||
.Audio_StreamInterface_Alt0 =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
|
||||
|
||||
.InterfaceNumber = 1,
|
||||
.AlternateSetting = 0,
|
||||
|
||||
.TotalEndpoints = 0,
|
||||
|
||||
.Class = 0x01,
|
||||
.SubClass = 0x02,
|
||||
.Protocol = 0x00,
|
||||
|
||||
.InterfaceStrIndex = NO_DESCRIPTOR
|
||||
},
|
||||
|
||||
.Audio_StreamInterface_Alt1 =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
|
||||
|
||||
.InterfaceNumber = 1,
|
||||
.AlternateSetting = 1,
|
||||
|
||||
.TotalEndpoints = 1,
|
||||
|
||||
.Class = 0x01,
|
||||
.SubClass = 0x02,
|
||||
.Protocol = 0x00,
|
||||
|
||||
.InterfaceStrIndex = NO_DESCRIPTOR
|
||||
},
|
||||
|
||||
.Audio_StreamInterface_SPC =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Audio_Interface_AS_t), .Type = DTYPE_AudioInterface},
|
||||
.Subtype = DSUBTYPE_General,
|
||||
|
||||
.TerminalLink = 0x01,
|
||||
|
||||
.FrameDelay = 1,
|
||||
.AudioFormat = 0x0001
|
||||
},
|
||||
|
||||
.Audio_AudioFormat =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Audio_Format_t), .Type = DTYPE_AudioInterface},
|
||||
.Subtype = DSUBTYPE_Format,
|
||||
|
||||
.FormatType = 0x01,
|
||||
.Channels = 0x02,
|
||||
|
||||
.SubFrameSize = 0x02,
|
||||
.BitResolution = 16,
|
||||
|
||||
.SampleFrequencyType = AUDIO_TOTAL_SAMPLE_RATES,
|
||||
.SampleFrequencies = {AUDIO_SAMPLE_FREQ(AUDIO_SAMPLE_FREQUENCY)}
|
||||
},
|
||||
|
||||
.Audio_StreamEndpoint =
|
||||
{
|
||||
.Endpoint =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Audio_StreamEndpoint_Std_t), .Type = DTYPE_Endpoint},
|
||||
|
||||
.EndpointAddress = (ENDPOINT_DESCRIPTOR_DIR_OUT | AUDIO_STREAM_EPNUM),
|
||||
.Attributes = (EP_TYPE_ISOCHRONOUS | ENDPOINT_ATTR_SYNC | ENDPOINT_USAGE_DATA),
|
||||
.EndpointSize = AUDIO_STREAM_EPSIZE,
|
||||
.PollingIntervalMS = 1
|
||||
},
|
||||
|
||||
.Refresh = 0,
|
||||
.SyncEndpointNumber = 0
|
||||
},
|
||||
|
||||
.Audio_StreamEndpoint_SPC =
|
||||
{
|
||||
.Header = {.Size = sizeof(USB_Audio_StreamEndpoint_Spc_t), .Type = DTYPE_AudioEndpoint},
|
||||
.Subtype = DSUBTYPE_General,
|
||||
|
||||
.Attributes = EP_ACCEPTS_SMALL_PACKETS,
|
||||
|
||||
.LockDelayUnits = 0x00,
|
||||
.LockDelay = 0x0000
|
||||
}
|
||||
};
|
||||
|
||||
/** Language descriptor structure. This descriptor, located in FLASH memory, is returned when the host requests
|
||||
* the string descriptor with index 0 (the first index). It is actually an array of 16-bit integers, which indicate
|
||||
* via the language ID table available at USB.org what languages the device supports for its string descriptors.
|
||||
*/
|
||||
USB_Descriptor_String_t PROGMEM LanguageString =
|
||||
{
|
||||
.Header = {.Size = USB_STRING_LEN(1), .Type = DTYPE_String},
|
||||
|
||||
.UnicodeString = {LANGUAGE_ID_ENG}
|
||||
};
|
||||
|
||||
/** Manufacturer descriptor string. This is a Unicode string containing the manufacturer's details in human readable
|
||||
* form, and is read out upon request by the host when the appropriate string ID is requested, listed in the Device
|
||||
* Descriptor.
|
||||
*/
|
||||
USB_Descriptor_String_t PROGMEM ManufacturerString =
|
||||
{
|
||||
.Header = {.Size = USB_STRING_LEN(11), .Type = DTYPE_String},
|
||||
|
||||
.UnicodeString = L"Dean Camera"
|
||||
};
|
||||
|
||||
/** Product descriptor string. This is a Unicode string containing the product's details in human readable form,
|
||||
* and is read out upon request by the host when the appropriate string ID is requested, listed in the Device
|
||||
* Descriptor.
|
||||
*/
|
||||
USB_Descriptor_String_t PROGMEM ProductString =
|
||||
{
|
||||
.Header = {.Size = USB_STRING_LEN(19), .Type = DTYPE_String},
|
||||
|
||||
.UnicodeString = L"LUFA Audio Out Demo"
|
||||
};
|
||||
|
||||
/** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors"
|
||||
* documentation) by the application code so that the address and size of a requested descriptor can be given
|
||||
* to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function
|
||||
* is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the
|
||||
* USB host.
|
||||
*/
|
||||
uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, const uint8_t wIndex, void** const DescriptorAddress)
|
||||
{
|
||||
const uint8_t DescriptorType = (wValue >> 8);
|
||||
const uint8_t DescriptorNumber = (wValue & 0xFF);
|
||||
|
||||
void* Address = NULL;
|
||||
uint16_t Size = NO_DESCRIPTOR;
|
||||
|
||||
switch (DescriptorType)
|
||||
{
|
||||
case DTYPE_Device:
|
||||
Address = (void*)&DeviceDescriptor;
|
||||
Size = sizeof(USB_Descriptor_Device_t);
|
||||
break;
|
||||
case DTYPE_Configuration:
|
||||
Address = (void*)&ConfigurationDescriptor;
|
||||
Size = sizeof(USB_Descriptor_Configuration_t);
|
||||
break;
|
||||
case DTYPE_String:
|
||||
switch (DescriptorNumber)
|
||||
{
|
||||
case 0x00:
|
||||
Address = (void*)&LanguageString;
|
||||
Size = pgm_read_byte(&LanguageString.Header.Size);
|
||||
break;
|
||||
case 0x01:
|
||||
Address = (void*)&ManufacturerString;
|
||||
Size = pgm_read_byte(&ManufacturerString.Header.Size);
|
||||
break;
|
||||
case 0x02:
|
||||
Address = (void*)&ProductString;
|
||||
Size = pgm_read_byte(&ProductString.Header.Size);
|
||||
break;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
*DescriptorAddress = Address;
|
||||
return Size;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,82 +1,82 @@
|
|||
/*
|
||||
LUFA Library
|
||||
Copyright (C) Dean Camera, 2010.
|
||||
|
||||
dean [at] fourwalledcubicle [dot] com
|
||||
www.fourwalledcubicle.com
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright 2010 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
|
||||
without fee, provided that the above copyright notice appear in
|
||||
all copies and that both that the copyright notice and this
|
||||
permission notice and warranty disclaimer appear in supporting
|
||||
documentation, and that the name of the author not be used in
|
||||
advertising or publicity pertaining to distribution of the
|
||||
software without specific, written prior permission.
|
||||
|
||||
The author disclaim all warranties with regard to this
|
||||
software, including all implied warranties of merchantability
|
||||
and fitness. In no event shall the author be liable for any
|
||||
special, indirect or consequential damages or any damages
|
||||
whatsoever resulting from loss of use, data or profits, whether
|
||||
in an action of contract, negligence or other tortious action,
|
||||
arising out of or in connection with the use or performance of
|
||||
this software.
|
||||
*/
|
||||
|
||||
/** \file
|
||||
*
|
||||
* Header file for Descriptors.c.
|
||||
*/
|
||||
|
||||
#ifndef _DESCRIPTORS_H_
|
||||
#define _DESCRIPTORS_H_
|
||||
|
||||
/* Includes: */
|
||||
#include <LUFA/Drivers/USB/USB.h>
|
||||
#include <LUFA/Drivers/USB/Class/Audio.h>
|
||||
|
||||
#include <avr/pgmspace.h>
|
||||
|
||||
/* Macros: */
|
||||
/** Endpoint number of the Audio isochronous streaming data endpoint. */
|
||||
#define AUDIO_STREAM_EPNUM 1
|
||||
|
||||
/** Endpoint size in bytes of the Audio isochronous streaming data endpoint. The Windows audio stack requires
|
||||
* at least 192 bytes for correct output, thus the smaller 128 byte maximum endpoint size on some of the smaller
|
||||
* USB AVR models will result in unavoidable distorted output.
|
||||
*/
|
||||
#define AUDIO_STREAM_EPSIZE ENDPOINT_MAX_SIZE(AUDIO_STREAM_EPNUM)
|
||||
|
||||
/** Sample frequency of the data being transmitted through the streaming endpoint. */
|
||||
#define AUDIO_SAMPLE_FREQUENCY 48000
|
||||
|
||||
/* Type Defines: */
|
||||
/** Type define for the device configuration descriptor structure. This must be defined in the
|
||||
* application code, as the configuration descriptor contains several sub-descriptors which
|
||||
* vary between devices, and which describe the device's usage to the host.
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
USB_Descriptor_Configuration_Header_t Config;
|
||||
USB_Descriptor_Interface_t Audio_ControlInterface;
|
||||
USB_Audio_Interface_AC_t Audio_ControlInterface_SPC;
|
||||
USB_Audio_InputTerminal_t Audio_InputTerminal;
|
||||
USB_Audio_OutputTerminal_t Audio_OutputTerminal;
|
||||
USB_Descriptor_Interface_t Audio_StreamInterface_Alt0;
|
||||
USB_Descriptor_Interface_t Audio_StreamInterface_Alt1;
|
||||
USB_Audio_Interface_AS_t Audio_StreamInterface_SPC;
|
||||
USB_Audio_Format_t Audio_AudioFormat;
|
||||
USB_Audio_StreamEndpoint_Std_t Audio_StreamEndpoint;
|
||||
USB_Audio_StreamEndpoint_Spc_t Audio_StreamEndpoint_SPC;
|
||||
} USB_Descriptor_Configuration_t;
|
||||
|
||||
/* Function Prototypes: */
|
||||
uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, const uint8_t wIndex, void** const DescriptorAddress)
|
||||
ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3);
|
||||
|
||||
#endif
|
||||
/*
|
||||
LUFA Library
|
||||
Copyright (C) Dean Camera, 2010.
|
||||
|
||||
dean [at] fourwalledcubicle [dot] com
|
||||
www.fourwalledcubicle.com
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright 2010 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
|
||||
without fee, provided that the above copyright notice appear in
|
||||
all copies and that both that the copyright notice and this
|
||||
permission notice and warranty disclaimer appear in supporting
|
||||
documentation, and that the name of the author not be used in
|
||||
advertising or publicity pertaining to distribution of the
|
||||
software without specific, written prior permission.
|
||||
|
||||
The author disclaim all warranties with regard to this
|
||||
software, including all implied warranties of merchantability
|
||||
and fitness. In no event shall the author be liable for any
|
||||
special, indirect or consequential damages or any damages
|
||||
whatsoever resulting from loss of use, data or profits, whether
|
||||
in an action of contract, negligence or other tortious action,
|
||||
arising out of or in connection with the use or performance of
|
||||
this software.
|
||||
*/
|
||||
|
||||
/** \file
|
||||
*
|
||||
* Header file for Descriptors.c.
|
||||
*/
|
||||
|
||||
#ifndef _DESCRIPTORS_H_
|
||||
#define _DESCRIPTORS_H_
|
||||
|
||||
/* Includes: */
|
||||
#include <LUFA/Drivers/USB/USB.h>
|
||||
#include <LUFA/Drivers/USB/Class/Audio.h>
|
||||
|
||||
#include <avr/pgmspace.h>
|
||||
|
||||
/* Macros: */
|
||||
/** Endpoint number of the Audio isochronous streaming data endpoint. */
|
||||
#define AUDIO_STREAM_EPNUM 1
|
||||
|
||||
/** Endpoint size in bytes of the Audio isochronous streaming data endpoint. The Windows audio stack requires
|
||||
* at least 192 bytes for correct output, thus the smaller 128 byte maximum endpoint size on some of the smaller
|
||||
* USB AVR models will result in unavoidable distorted output.
|
||||
*/
|
||||
#define AUDIO_STREAM_EPSIZE ENDPOINT_MAX_SIZE(AUDIO_STREAM_EPNUM)
|
||||
|
||||
/** Sample frequency of the data being transmitted through the streaming endpoint. */
|
||||
#define AUDIO_SAMPLE_FREQUENCY 48000
|
||||
|
||||
/* Type Defines: */
|
||||
/** Type define for the device configuration descriptor structure. This must be defined in the
|
||||
* application code, as the configuration descriptor contains several sub-descriptors which
|
||||
* vary between devices, and which describe the device's usage to the host.
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
USB_Descriptor_Configuration_Header_t Config;
|
||||
USB_Descriptor_Interface_t Audio_ControlInterface;
|
||||
USB_Audio_Interface_AC_t Audio_ControlInterface_SPC;
|
||||
USB_Audio_InputTerminal_t Audio_InputTerminal;
|
||||
USB_Audio_OutputTerminal_t Audio_OutputTerminal;
|
||||
USB_Descriptor_Interface_t Audio_StreamInterface_Alt0;
|
||||
USB_Descriptor_Interface_t Audio_StreamInterface_Alt1;
|
||||
USB_Audio_Interface_AS_t Audio_StreamInterface_SPC;
|
||||
USB_Audio_Format_t Audio_AudioFormat;
|
||||
USB_Audio_StreamEndpoint_Std_t Audio_StreamEndpoint;
|
||||
USB_Audio_StreamEndpoint_Spc_t Audio_StreamEndpoint_SPC;
|
||||
} USB_Descriptor_Configuration_t;
|
||||
|
||||
/* Function Prototypes: */
|
||||
uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, const uint8_t wIndex, void** const DescriptorAddress)
|
||||
ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3);
|
||||
|
||||
#endif
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load diff
File diff suppressed because it is too large
Load diff
Loading…
Add table
Add a link
Reference in a new issue