Chuck Timber / Mbed 2 deprecated Gemphet8

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Dependencies:   MIDI REnc button mbed

main.cpp@1:2760654d0b44, 2014-08-09 (annotated)

Committer:
ChuckTimber
Date:
Sat Aug 09 02:17:53 2014 +0000
Revision:
1:2760654d0b44
Parent:
0:3dc89ac1495f
Child:
3:153322cb84f6
Child:
4:c18cfcad2c48
Child:
5:7d7be4c72d21
Child:
6:16aa8fc30ef8
working copy ; compile OK, midi proc wrote

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ChuckTimber 0:3dc89ac1495f 1 /**
ChuckTimber 0:3dc89ac1495f 2 * @file main.cpp
ChuckTimber 0:3dc89ac1495f 3 * Project Gem8 - handles 8-gembox synth project application
ChuckTimber 0:3dc89ac1495f 4 * @brief Gem8 project application
ChuckTimber 0:3dc89ac1495f 5 * @version 1.0
ChuckTimber 0:3dc89ac1495f 6 * @author Chuck Timber
ChuckTimber 0:3dc89ac1495f 7 * @date 08/08/2014
ChuckTimber 0:3dc89ac1495f 8 */
ChuckTimber 0:3dc89ac1495f 9
ChuckTimber 0:3dc89ac1495f 10 #include "mbed.h"
ChuckTimber 0:3dc89ac1495f 11 //#include "button.h"
ChuckTimber 0:3dc89ac1495f 12 //#include "REnc.h"
ChuckTimber 0:3dc89ac1495f 13 #include "MIDI.h"
ChuckTimber 0:3dc89ac1495f 14
ChuckTimber 1:2760654d0b44 15
ChuckTimber 1:2760654d0b44 16 // LED (active HIGH)
ChuckTimber 1:2760654d0b44 17 #define dbg_led_on() { }
ChuckTimber 1:2760654d0b44 18 #define dbg_led_off() { }
ChuckTimber 1:2760654d0b44 19
ChuckTimber 1:2760654d0b44 20
ChuckTimber 1:2760654d0b44 21 /** MIDI System message */
ChuckTimber 1:2760654d0b44 22 #define MIDI_ALL_NOTE_OFF 0x7B
ChuckTimber 1:2760654d0b44 23 #define MIDI_RESET_ALL_CONTROLLERS 0x79
ChuckTimber 1:2760654d0b44 24
ChuckTimber 0:3dc89ac1495f 25 #define POLYPHONICE_NOTES 8
ChuckTimber 1:2760654d0b44 26
ChuckTimber 1:2760654d0b44 27 /** @structure MIDI Note management structure
ChuckTimber 1:2760654d0b44 28 *
ChuckTimber 1:2760654d0b44 29 */
ChuckTimber 1:2760654d0b44 30 struct _MidiNote {
ChuckTimber 1:2760654d0b44 31 /// MIDI Note number
ChuckTimber 1:2760654d0b44 32 uint8_t Note;
ChuckTimber 1:2760654d0b44 33 /// MIDI Note velocity
ChuckTimber 1:2760654d0b44 34 uint8_t Velocity;
ChuckTimber 1:2760654d0b44 35 /// MIDI Note channel
ChuckTimber 1:2760654d0b44 36 uint8_t Channel;
ChuckTimber 1:2760654d0b44 37 /// pointer to the next _MidiNote object
ChuckTimber 1:2760654d0b44 38 struct _MidiNote *next;
ChuckTimber 1:2760654d0b44 39 };
ChuckTimber 1:2760654d0b44 40
ChuckTimber 1:2760654d0b44 41 struct _MidiNote NoteEnd = { 255, 255, 15, 0 };
ChuckTimber 1:2760654d0b44 42 struct _MidiNote NoteStart = { 0, 0, 0, &NoteEnd };
ChuckTimber 1:2760654d0b44 43 struct _MidiNote MidiNotes[POLYPHONICE_NOTES];
ChuckTimber 1:2760654d0b44 44 static uint16_t MidiNotesTag;
ChuckTimber 1:2760654d0b44 45
ChuckTimber 1:2760654d0b44 46 volatile static uint8_t NumOfNotes = POLYPHONICE_NOTES;
ChuckTimber 1:2760654d0b44 47
ChuckTimber 1:2760654d0b44 48 /** @brief Prototypes related to MIDI
ChuckTimber 1:2760654d0b44 49 *
ChuckTimber 1:2760654d0b44 50 */
ChuckTimber 1:2760654d0b44 51 struct _MidiNote *allocN(void);
ChuckTimber 1:2760654d0b44 52 void freeN(struct _MidiNote *addr);
ChuckTimber 1:2760654d0b44 53 void midi_allnoteoff(void);
ChuckTimber 1:2760654d0b44 54 void midi_resetcontrol(void);
ChuckTimber 1:2760654d0b44 55 void midi_sysreset(void);
ChuckTimber 1:2760654d0b44 56 void midi_noteoff(byte channel, byte note, byte velocity);
ChuckTimber 1:2760654d0b44 57 void midi_noteon(byte channel, byte note, byte velocity);
ChuckTimber 1:2760654d0b44 58 void midi_cc(byte channel, byte number, byte value);
ChuckTimber 1:2760654d0b44 59 void midi_pc(byte channel, byte number);
ChuckTimber 1:2760654d0b44 60 void midi_pbend(byte channel, int bend);
ChuckTimber 0:3dc89ac1495f 61
ChuckTimber 0:3dc89ac1495f 62 uint8_t midi_params[]={
ChuckTimber 0:3dc89ac1495f 63 0,0,0,0,0,0,0,100,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
ChuckTimber 0:3dc89ac1495f 64 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
ChuckTimber 0:3dc89ac1495f 65 0,0,0,0,0,0,0,64,0,0,127,0,32,127,0,0,64,32,
ChuckTimber 0:3dc89ac1495f 66 };
ChuckTimber 0:3dc89ac1495f 67
ChuckTimber 0:3dc89ac1495f 68 DigitalOut myled(LED1);
ChuckTimber 0:3dc89ac1495f 69 MIDI midi(dp16, dp15);
ChuckTimber 0:3dc89ac1495f 70
ChuckTimber 0:3dc89ac1495f 71
ChuckTimber 0:3dc89ac1495f 72 int main() {
ChuckTimber 0:3dc89ac1495f 73
ChuckTimber 0:3dc89ac1495f 74 midi.setHandleNoteOff(&midi_noteoff);
ChuckTimber 0:3dc89ac1495f 75 midi.setHandleNoteOn(&midi_noteon);
ChuckTimber 0:3dc89ac1495f 76 midi.setHandleControlChange(&midi_cc);
ChuckTimber 0:3dc89ac1495f 77 midi.setHandleProgramChange(&midi_pc);
ChuckTimber 0:3dc89ac1495f 78 midi.setHandlePitchBend(&midi_pbend);
ChuckTimber 0:3dc89ac1495f 79 midi.setHandleSystemReset(&midi_sysreset);
ChuckTimber 0:3dc89ac1495f 80
ChuckTimber 0:3dc89ac1495f 81
ChuckTimber 0:3dc89ac1495f 82 while(1) {
ChuckTimber 0:3dc89ac1495f 83 myled = 1;
ChuckTimber 0:3dc89ac1495f 84 wait(0.2);
ChuckTimber 0:3dc89ac1495f 85 myled = 0;
ChuckTimber 0:3dc89ac1495f 86 wait(0.2);
ChuckTimber 0:3dc89ac1495f 87 }
ChuckTimber 0:3dc89ac1495f 88 }
ChuckTimber 0:3dc89ac1495f 89
ChuckTimber 1:2760654d0b44 90 /// @brief Reset all MIDI controller
ChuckTimber 1:2760654d0b44 91 static void midi_allnoteoff(void)
ChuckTimber 1:2760654d0b44 92 {
ChuckTimber 1:2760654d0b44 93 int i;
ChuckTimber 1:2760654d0b44 94 uint16_t msk;
ChuckTimber 1:2760654d0b44 95
ChuckTimber 1:2760654d0b44 96 for (i = 0, msk = 0x01; i < NumOfNotes; i++, msk<<=1) {
ChuckTimber 1:2760654d0b44 97 if (MidiNotesTag & msk) {
ChuckTimber 1:2760654d0b44 98 midi.sendNoteOff(MidiNotes[i].Note, MidiNotes[i].Velocity, MidiNotes[i].Channel);
ChuckTimber 1:2760654d0b44 99 MidiNotesTag &= ~msk;
ChuckTimber 1:2760654d0b44 100 }
ChuckTimber 1:2760654d0b44 101 }
ChuckTimber 1:2760654d0b44 102
ChuckTimber 1:2760654d0b44 103 MidiNotesTag = 0x0000;
ChuckTimber 1:2760654d0b44 104 NoteEnd.next = NULL;
ChuckTimber 1:2760654d0b44 105 NoteStart.next = &NoteEnd;
ChuckTimber 1:2760654d0b44 106 }
ChuckTimber 1:2760654d0b44 107
ChuckTimber 1:2760654d0b44 108 /// @brief Reset MIDI controller
ChuckTimber 1:2760654d0b44 109 static void midi_resetcontrol(void)
ChuckTimber 1:2760654d0b44 110 {
ChuckTimber 1:2760654d0b44 111 }
ChuckTimber 1:2760654d0b44 112
ChuckTimber 1:2760654d0b44 113 /// @brief Reset all MIDI controller
ChuckTimber 1:2760654d0b44 114 void midi_sysreset(void)
ChuckTimber 1:2760654d0b44 115 {
ChuckTimber 1:2760654d0b44 116 midi_allnoteoff();
ChuckTimber 1:2760654d0b44 117 midi_resetcontrol();
ChuckTimber 1:2760654d0b44 118 }
ChuckTimber 1:2760654d0b44 119
ChuckTimber 1:2760654d0b44 120 /// @brief MIDI note structure allocate function
ChuckTimber 1:2760654d0b44 121 static struct _MidiNote *allocN(void)
ChuckTimber 1:2760654d0b44 122 {
ChuckTimber 1:2760654d0b44 123 int i;
ChuckTimber 1:2760654d0b44 124 uint16_t msk;
ChuckTimber 1:2760654d0b44 125
ChuckTimber 1:2760654d0b44 126 for (i = 0, msk = 0x01; i < NumOfNotes; i++, msk<<=1) {
ChuckTimber 1:2760654d0b44 127 if (!(MidiNotesTag & msk)) {
ChuckTimber 1:2760654d0b44 128 MidiNotesTag |= msk;
ChuckTimber 1:2760654d0b44 129 MidiNotes[i].Channel = i;
ChuckTimber 1:2760654d0b44 130 return (&MidiNotes[i]);
ChuckTimber 1:2760654d0b44 131 }
ChuckTimber 1:2760654d0b44 132 }
ChuckTimber 1:2760654d0b44 133 return NULL;
ChuckTimber 1:2760654d0b44 134 }
ChuckTimber 1:2760654d0b44 135
ChuckTimber 1:2760654d0b44 136 /// @brief MIDI note structure free function
ChuckTimber 1:2760654d0b44 137 static void freeN(struct _MidiNote *addr)
ChuckTimber 1:2760654d0b44 138 {
ChuckTimber 1:2760654d0b44 139 int i;
ChuckTimber 1:2760654d0b44 140 uint16_t msk;
ChuckTimber 1:2760654d0b44 141
ChuckTimber 1:2760654d0b44 142 for (i = 0, msk = 0x01; i < NumOfNotes; i++, msk<<=1) {
ChuckTimber 1:2760654d0b44 143 if (addr == &MidiNotes[i])
ChuckTimber 1:2760654d0b44 144 MidiNotesTag &= ~msk;
ChuckTimber 1:2760654d0b44 145 }
ChuckTimber 1:2760654d0b44 146 }
ChuckTimber 1:2760654d0b44 147
ChuckTimber 1:2760654d0b44 148 /// @brief MIDI Control Change callback funcion
ChuckTimber 1:2760654d0b44 149 void midi_cc(byte channel, byte number, byte value)
ChuckTimber 1:2760654d0b44 150 {
ChuckTimber 1:2760654d0b44 151 if (number == MIDI_ALL_NOTE_OFF) {
ChuckTimber 1:2760654d0b44 152 midi_allnoteoff();
ChuckTimber 1:2760654d0b44 153 }
ChuckTimber 1:2760654d0b44 154 if (number == MIDI_RESET_ALL_CONTROLLERS) {
ChuckTimber 1:2760654d0b44 155 midi_resetcontrol();
ChuckTimber 1:2760654d0b44 156 }
ChuckTimber 1:2760654d0b44 157 midi.sendControlChange(number, value, channel);
ChuckTimber 1:2760654d0b44 158 }
ChuckTimber 1:2760654d0b44 159
ChuckTimber 1:2760654d0b44 160 /// @brief MIDI Program Change callback funcion
ChuckTimber 1:2760654d0b44 161 void midi_pc(byte channel, byte number)
ChuckTimber 1:2760654d0b44 162 {
ChuckTimber 1:2760654d0b44 163 midi.sendProgramChange(number, channel);
ChuckTimber 1:2760654d0b44 164 }
ChuckTimber 1:2760654d0b44 165
ChuckTimber 1:2760654d0b44 166 /// @brief MIDI Pitch Bend callback funcion
ChuckTimber 1:2760654d0b44 167 void midi_pbend(byte channel, int bend)
ChuckTimber 1:2760654d0b44 168 {
ChuckTimber 1:2760654d0b44 169 midi.sendPitchBend(bend, channel);
ChuckTimber 1:2760654d0b44 170 }
ChuckTimber 1:2760654d0b44 171
ChuckTimber 1:2760654d0b44 172 /// @brief MIDI Note On callback funcion
ChuckTimber 1:2760654d0b44 173 void midi_noteon(byte channel, byte note, byte velocity)
ChuckTimber 1:2760654d0b44 174 {
ChuckTimber 1:2760654d0b44 175 struct _MidiNote *ptr, *newnote;
ChuckTimber 1:2760654d0b44 176
ChuckTimber 1:2760654d0b44 177 if ((newnote = allocN()) == NULL) { // if table full, release oldest note
ChuckTimber 1:2760654d0b44 178 ptr = NoteStart.next;
ChuckTimber 1:2760654d0b44 179 midi.sendNoteOff(ptr->Note, ptr->Velocity, ptr->Channel);
ChuckTimber 1:2760654d0b44 180 NoteStart.next = ptr->next;
ChuckTimber 1:2760654d0b44 181 freeN(ptr);
ChuckTimber 1:2760654d0b44 182 newnote = allocN();
ChuckTimber 1:2760654d0b44 183 }
ChuckTimber 1:2760654d0b44 184 newnote->Note = note;
ChuckTimber 1:2760654d0b44 185 newnote->Velocity = velocity;
ChuckTimber 1:2760654d0b44 186 // newnote->Channel // do not set channel
ChuckTimber 1:2760654d0b44 187 midi.sendNoteOn(note, velocity, newnote->Channel);
ChuckTimber 1:2760654d0b44 188 for (ptr = &NoteStart; ptr->next; ptr = ptr->next) { // put newnote on the tail
ChuckTimber 1:2760654d0b44 189 if (ptr->next == &NoteEnd) {
ChuckTimber 1:2760654d0b44 190 newnote->next = ptr->next;
ChuckTimber 1:2760654d0b44 191 ptr->next = newnote;
ChuckTimber 1:2760654d0b44 192 break;
ChuckTimber 1:2760654d0b44 193 }
ChuckTimber 1:2760654d0b44 194 }
ChuckTimber 1:2760654d0b44 195 }
ChuckTimber 1:2760654d0b44 196
ChuckTimber 1:2760654d0b44 197 /// @brief MIDI Note Off callback funcion
ChuckTimber 1:2760654d0b44 198 void midi_noteoff(byte channel, byte note, byte velocity)
ChuckTimber 1:2760654d0b44 199 {
ChuckTimber 1:2760654d0b44 200 struct _MidiNote *ptr, *lastptr;
ChuckTimber 1:2760654d0b44 201
ChuckTimber 1:2760654d0b44 202 for (ptr = &NoteStart; ptr->next; ptr = ptr->next) {
ChuckTimber 1:2760654d0b44 203 if (note == ptr->next->Note) {
ChuckTimber 1:2760654d0b44 204 lastptr = ptr->next;
ChuckTimber 1:2760654d0b44 205 midi.sendNoteOff(lastptr->Note, lastptr->Velocity, lastptr->Channel);
ChuckTimber 1:2760654d0b44 206 ptr->next = lastptr->next;
ChuckTimber 1:2760654d0b44 207 freeN(lastptr);
ChuckTimber 1:2760654d0b44 208 break;
ChuckTimber 1:2760654d0b44 209 }
ChuckTimber 1:2760654d0b44 210 }
ChuckTimber 1:2760654d0b44 211 }