Demos/Device/LowLevel/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>
  47                 #include <LUFA/Drivers/USB/USB.h>
  48                 #include <LUFA/Drivers/Board/LEDs.h>
  49
  50         /* Macros: */
  51                 #if (defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR))
  52                         #define TCCRxA          TCCR3A
  53                         #define TCCRxB          TCCR3B
  54                         #define OCRxA           OCR3A
  55                         #define OCRxB           OCR3B
  56                         #define WGMx0           WGM30
  57                         #define WGMx2           WGM32
  58                         #define COMxA1          COM3A1
  59                         #define COMxA0          COM3A0
  60                         #define COMxB1          COM3B1
  61                         #define COMxB0          COM3B0
  62                         #define CSx0            CS30
  63                 #else
  64                         /** Timer count register used for left channel PWM audio output (or mixed output in mono output mode) */
  65                         #define TCCRxA          TCCR1A
  66
  67                         /** Timer count register used for right channel PWM audio output */
  68                         #define TCCRxB          TCCR1B
  69
  70                         /** Timer compare register used for left channel PWM audio output (or mixed output in mono output mode) */
  71                         #define OCRxA           OCR1A
  72
  73                         /** Timer compare register used for right channel PWM audio output */
  74                         #define OCRxB           OCR1B
  75
  76                         /** Timer control register mask used to select PWM mode */
  77                         #define WGMx0           WGM10
  78
  79                         /** Timer control register mask used to select PWM mode */
  80                         #define WGMx2           WGM12
  81
  82                         /** Timer control register mask used to set, clear or toggle channel output pin on match */
  83                         #define COMxA1          COM1A1
  84
  85                         /** Timer control register mask used to set, clear or toggle channel output pin on match */
  86                         #define COMxA0          COM1A0
  87
  88                         /** Timer control register mask used to set, clear or toggle channel output pin on match */
  89                         #define COMxB1          COM1B1
  90
  91                         /** Timer control register mask used to set, clear or toggle channel output pin on match */
  92                         #define COMxB0          COM1B0
  93
  94                         /** Timer control register mask used to start the timer at Fcpu clock rate */
  95                         #define CSx0            CS10
  96                 #endif
  97
  98                 /** LED mask for the library LED driver, to indicate that the USB interface is not ready. */
  99                 #define LEDMASK_USB_NOTREADY      LEDS_LED1
 100
 101                 /** LED mask for the library LED driver, to indicate that the USB interface is enumerating. */
 102                 #define LEDMASK_USB_ENUMERATING  (LEDS_LED2 | LEDS_LED3)
 103
 104                 /** LED mask for the library LED driver, to indicate that the USB interface is ready. */
 105                 #define LEDMASK_USB_READY        (LEDS_LED2 | LEDS_LED4)
 106
 107                 /** LED mask for the library LED driver, to indicate that an error has occurred in the USB interface. */
 108                 #define LEDMASK_USB_ERROR        (LEDS_LED1 | LEDS_LED3)
 109
 110         /* Function Prototypes: */
 111                 void SetupHardware(void);
 112                 void USB_Audio_Task(void);
 113
 114                 void EVENT_USB_Connect(void);
 115                 void EVENT_USB_Disconnect(void);
 116                 void EVENT_USB_ConfigurationChanged(void);
 117                 void EVENT_USB_UnhandledControlPacket(void);
 118
 119 #endif