Demos/Device/AudioOutput/AudioOutput.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/Scheduler/Scheduler.h>        // Simple scheduler for task management
  50
  51         /* Macros: */
  52                 #if defined(USB_FULL_CONTROLLER) || defined(USB_MODIFIED_FULL_CONTROLLER)
  53                         #define TCCRxA          TCCR3A
  54                         #define TCCRxB          TCCR3B
  55                         #define OCRxA           OCR3A
  56                         #define OCRxB           OCR3B
  57                         #define WGMx0           WGM30
  58                         #define WGMx2           WGM32
  59                         #define COMxA1          COM3A1
  60                         #define COMxA0          COM3A0
  61                         #define COMxB1          COM3B1
  62                         #define COMxB0          COM3B0
  63                         #define CSx0            CS30
  64                 #else
  65                         /** Timer count register used for left channel PWM audio output (or mixed output in mono output mode) */
  66                         #define TCCRxA          TCCR1A
  67
  68                         /** Timer count register used for right channel PWM audio output */
  69                         #define TCCRxB          TCCR1B
  70
  71                         /** Timer compare register used for left channel PWM audio output (or mixed output in mono output mode) */
  72                         #define OCRxA           OCR1A
  73
  74                         /** Timer compare register used for right channel PWM audio output */
  75                         #define OCRxB           OCR1B
  76
  77                         /** Timer control register mask used to select PWM mode */
  78                         #define WGMx0           WGM10
  79
  80                         /** Timer control register mask used to select PWM mode */
  81                         #define WGMx2           WGM12
  82
  83                         /** Timer control register mask used to set, clear or toggle channel output pin on match */
  84                         #define COMxA1          COM1A1
  85
  86                         /** Timer control register mask used to set, clear or toggle channel output pin on match */
  87                         #define COMxA0          COM1A0
  88
  89                         /** Timer control register mask used to set, clear or toggle channel output pin on match */
  90                         #define COMxB1          COM1B1
  91
  92                         /** Timer control register mask used to set, clear or toggle channel output pin on match */
  93                         #define COMxB0          COM1B0
  94
  95                         /** Timer control register mask used to start the timer at Fcpu clock rate */
  96                         #define CSx0            CS10
  97                 #endif
  98
  99         /* Enums: */
 100                 /** Enum for the possible status codes for passing to the UpdateStatus() function. */
 101                 enum AudioOutput_StatusCodes_t
 102                 {
 103                         Status_USBNotReady    = 0, /**< USB is not ready (disconnected from a USB host) */
 104                         Status_USBEnumerating = 1, /**< USB interface is enumerating */
 105                         Status_USBReady       = 2, /**< USB interface is connected and ready */
 106                 };
 107
 108         /* Task Definitions: */
 109                 TASK(USB_Audio_Task);
 110
 111         /* Function Prototypes: */
 112                 void EVENT_USB_Connect(void);
 113                 void EVENT_USB_Disconnect(void);
 114                 void EVENT_USB_ConfigurationChanged(void);
 115                 void EVENT_USB_UnhandledControlPacket(void);
 116
 117                 void UpdateStatus(uint8_t CurrentStatus);
 118
 119 #endif