Demos/Device/AudioInput/AudioInput.h

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2009.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, and distribute this software
  13   and its documentation for any purpose and without fee is hereby
  14   granted, provided that the above copyright notice appear in all
  15   copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 /** \file
  32  *
  33  *  Header file for AudioOutput.c.
  34  */
  35
  36 #ifndef _AUDIO_OUTPUT_H_
  37 #define _AUDIO_OUTPUT_H_
  38
  39         /* Includes: */
  40                 #include <avr/io.h>
  41                 #include <avr/wdt.h>
  42                 #include <avr/power.h>
  43
  44                 #include "Descriptors.h"
  45
  46                 #include <LUFA/Version.h>                      // Library Version Information
  47                 #include <LUFA/Drivers/USB/USB.h>              // USB Functionality
  48                 #include <LUFA/Drivers/Board/LEDs.h>           // LEDs driver
  49                 #include <LUFA/Drivers/Peripheral/ADC.h>       // ADC driver
  50                 #include <LUFA/Scheduler/Scheduler.h>          // Simple scheduler for task management
  51
  52         /* Macros: */
  53                 /** ADC channel number for the microphone input. */
  54                 #define MIC_IN_ADC_CHANNEL               2
  55
  56                 /** Maximum ADC sample value for the microphone input. */
  57                 #define SAMPLE_MAX_RANGE                 0xFFFF
  58
  59                 /** Maximum ADC range for the microphone input. */
  60                 #define ADC_MAX_RANGE                    0x3FF
  61
  62         /* Enums: */
  63                 /** Enum for the possible status codes for passing to the UpdateStatus() function. */
  64                 enum AudioInput_StatusCodes_t
  65                 {
  66                         Status_USBNotReady    = 0, /**< USB is not ready (disconnected from a USB host) */
  67                         Status_USBEnumerating = 1, /**< USB interface is enumerating */
  68                         Status_USBReady       = 2, /**< USB interface is connected and ready */
  69                 };
  70
  71         /* Task Definitions: */
  72                 TASK(USB_Audio_Task);
  73
  74         /* Function Prototypes: */
  75                 void EVENT_USB_Connect(void);
  76                 void EVENT_USB_Disconnect(void);
  77                 void EVENT_USB_ConfigurationChanged(void);
  78                 void EVENT_USB_UnhandledControlPacket(void);
  79
  80                 void UpdateStatus(uint8_t CurrentStatus);
  81
  82 #endif