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/*
* midi.h
*
* Created: 12.06.2017 20:43:37
* Author: Jonas
*/
/*
Octave|| Note Numbers
# ||
|| C | C# | D | D# | E | F | F# | G | G# | A | A# | B
-----------------------------------------------------------------------------
0 || 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11
1 || 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23
2 || 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35
3 || 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47
4 || 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59
5 || 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71
6 || 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83
7 || 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95
8 || 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107
9 || 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119
10 || 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 |
*/
#ifndef F_CPU
#error F_CPU not defined for midi.h
#endif
#ifndef MIDI_H_
#define MIDI_H_
#define _MIDI_LINK_SPEED 30000UL //Standard MIDI linkspeed is 30k baud
#include <avr/interrupt.h>
#include <util/delay.h>
#include <avr/io.h>
#include "floppy.h"
static char midi_recv_buffer[16];
static uint8_t midi_recv_ptr;
static char midi_active_channels;
static uint16_t midi_current_notes[8];
static const uint16_t midi_code_frequency_table[232];
void midi_setup();
/*
* initializes UART communication and Interrupts
*/
void midi_process();
/*
* Run in loop
*/
static void midi_command(char _cmd, char _note, char _vel);
static uint8_t midi_recv_avail();
static char midi_get_recv_buf();
static void midi_update_note(uint16_t _note, uint8_t _status);
/*
* _note : MIDI-standard note #
* _status : 0=OFF >0=ON
*/
static void midi_uart_out(unsigned char _c);
#endif /* MIDI_H_ */
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