Merge commit '60b30c036397cb5627fa374bb930794b225daa29' as 'lib/lufa'

[qmk_firmware.git] / lib / lufa / Projects / MIDIToneGenerator / MIDIToneGenerator.h

diff --git a/lib/lufa/Projects/MIDIToneGenerator/MIDIToneGenerator.h b/lib/lufa/Projects/MIDIToneGenerator/MIDIToneGenerator.h
new file mode 100644 (file)
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+++ b/lib/lufa/Projects/MIDIToneGenerator/MIDIToneGenerator.h
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+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2017.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+*/
+
+/*
+  Copyright 2017  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 AudioOutput.c.
+ */
+
+#ifndef _AUDIO_OUTPUT_H_
+#define _AUDIO_OUTPUT_H_
+
+       /* Includes: */
+               #include <avr/io.h>
+               #include <avr/wdt.h>
+               #include <avr/power.h>
+               #include <avr/pgmspace.h>
+               #include <avr/interrupt.h>
+               #include <stdbool.h>
+
+               #include "Descriptors.h"
+               #include "Config/AppConfig.h"
+
+               #include <LUFA/Drivers/Board/LEDs.h>
+               #include <LUFA/Drivers/USB/USB.h>
+               #include <LUFA/Platform/Platform.h>
+
+       /* Macros: */
+               /** 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)
+
+               /** Scale factor used to convert the floating point frequencies and ratios into a fixed point number */
+               #define SCALE_FACTOR               65536
+
+               /** Base (lowest) allowable MIDI note frequency */
+               #define BASE_FREQUENCY             27.5
+
+               /** Ratio between each note in an octave */
+               #define NOTE_OCTIVE_RATIO          1.05946
+
+               /** Lowest valid MIDI pitch index */
+               #define BASE_PITCH_INDEX           21
+
+               /** Number of samples in the virtual sample table (can be expanded to lower maximum frequency, but allow for
+                *  more simultaneous notes due to the reduced amount of processing time needed when the samples are spaced out)
+                */
+               #define VIRTUAL_SAMPLE_TABLE_SIZE  512
+
+               /** Sample table increments per period for the base MIDI note frequency */
+               #define BASE_INCREMENT             (((F_CPU / VIRTUAL_SAMPLE_TABLE_SIZE / 2) / BASE_FREQUENCY))
+
+       /* Type Defines: */
+               typedef struct
+               {
+                       uint8_t  LRUAge;
+                       uint8_t  Pitch;
+                       uint32_t TableIncrement;
+                       uint32_t TablePosition;
+               } DDSNoteData;
+
+       /* 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_UnhandledControlRequest(void);
+
+#endif
+