Demos/Device/LowLevel/MIDI/MIDI.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                 #include <stdbool.h>
  44
  45                 #include "Descriptors.h"
  46
  47                 #include <LUFA/Version.h>                            // Library Version Information
  48                 #include <LUFA/Drivers/USB/USB.h>                    // USB Functionality
  49                 #include <LUFA/Drivers/Board/Joystick.h>             // Joystick driver
  50                 #include <LUFA/Drivers/Board/LEDs.h>                 // LEDs driver
  51                 #include <LUFA/Drivers/Board/Buttons.h>              // Board Buttons driver
  52                 #include <LUFA/Scheduler/Scheduler.h>                // Simple scheduler for task management
  53
  54    /* Macros: */
  55                 /** MIDI command for a note on (activation) event */
  56                 #define MIDI_COMMAND_NOTE_ON         0x90
  57
  58                 /** MIDI command for a note off (deactivation) event */
  59                 #define MIDI_COMMAND_NOTE_OFF        0x80
  60
  61                 /** Standard key press velocity value used for all note events, as no pressure sensor is mounted */
  62                 #define MIDI_STANDARD_VELOCITY       64
  63
  64                 /** Convenience macro. MIDI channels are numbered from 1-10 (natural numbers) however the logical channel
  65                  *  addresses are zero-indexed. This converts a natural MIDI channel number into the logical channel address.
  66                  *
  67                  *  \param channel  MIDI channel number to address
  68                  */
  69                 #define MIDI_CHANNEL(channel)        (channel - 1)
  70
  71         /* Enums: */
  72                 /** Enum for the possible status codes for passing to the UpdateStatus() function. */
  73                 enum MIDI_StatusCodes_t
  74                 {
  75                         Status_USBNotReady    = 0, /**< USB is not ready (disconnected from a USB host) */
  76                         Status_USBEnumerating = 1, /**< USB interface is enumerating */
  77                         Status_USBReady       = 2, /**< USB interface is connected and ready */
  78                 };
  79
  80         /* Task Definitions: */
  81                 TASK(USB_MIDI_Task);
  82
  83    /* Function Prototypes: */
  84                 void EVENT_USB_Connect(void);
  85                 void EVENT_USB_Disconnect(void);
  86                 void EVENT_USB_ConfigurationChanged(void);
  87
  88                 void SendMIDINoteChange(const uint8_t Pitch, const bool OnOff,
  89                                         const uint8_t CableID, const uint8_t Channel);
  90                 void UpdateStatus(uint8_t CurrentStatus);
  91
  92 #endif