qmk_firmware/Demos/Device/ClassDriver/AudioInput/AudioInput.h

/*
             LUFA Library
     Copyright (C) Dean Camera, 2013.

  dean [at] fourwalledcubicle [dot] com
           www.lufa-lib.org
*/

/*
  Copyright 2013  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 disclaims 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 AudioInput.c.
 */

#ifndef _AUDIO_INPUT_H_
#define _AUDIO_INPUT_H_

	/* Includes: */
		#include <avr/io.h>
		#include <avr/wdt.h>
		#include <avr/power.h>
		#include <avr/interrupt.h>

		#include <LUFA/Drivers/Board/LEDs.h>
		#include <LUFA/Drivers/Board/Buttons.h>
		#include <LUFA/Drivers/Peripheral/ADC.h>
		#include <LUFA/Drivers/USB/USB.h>

		#include "Descriptors.h"
		#include "Config/AppConfig.h"

	/* Macros: */
		/** Maximum audio sample value for the microphone input. */
		#define SAMPLE_MAX_RANGE          0xFFFF

		/** Maximum ADC range for the microphone input. */
		#define ADC_MAX_RANGE             0x3FF

		/** 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 EVENT_USB_Device_Connect(void);
		void EVENT_USB_Device_Disconnect(void);
		void EVENT_USB_Device_ConfigurationChanged(void);
		void EVENT_USB_Device_ControlRequest(void);
		
		bool CALLBACK_Audio_Device_GetSetEndpointProperty(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
		                                                  const uint8_t EndpointProperty,
		                                                  const uint8_t EndpointAddress,
		                                                  const uint8_t EndpointControl,
		                                                  uint16_t* const DataLength,
		                                                  uint8_t* Data) ATTR_NON_NULL_PTR_ARG(1);
		bool CALLBACK_Audio_Device_GetSetInterfaceProperty(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo,
		                                                   const uint8_t Property,
		                                                   const uint8_t EntityAddress,
		                                                   const uint16_t Parameter,
		                                                   uint16_t* const DataLength,
		                                                   uint8_t* Data);
#endif