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-rw-r--r--quantum/beeps.c265
1 files changed, 0 insertions, 265 deletions
diff --git a/quantum/beeps.c b/quantum/beeps.c
deleted file mode 100644
index 7586ebc52..000000000
--- a/quantum/beeps.c
+++ /dev/null
@@ -1,265 +0,0 @@
1#include <stdio.h>
2#include <string.h>
3#include <math.h>
4#include <avr/pgmspace.h>
5#include <avr/interrupt.h>
6#include <avr/io.h>
7
8#include "beeps.h"
9#include "keymap_common.h"
10#include "wave.h"
11
12#define PI 3.14159265
13
14#define SAMPLE_DIVIDER 39
15#define SAMPLE_RATE (2000000.0/SAMPLE_DIVIDER/2048)
16// Resistor value of 1/ (2 * PI * 10nF * (2000000 hertz / SAMPLE_DIVIDER / 10)) for 10nF cap
17
18void delay_us(int count) {
19 while(count--) {
20 _delay_us(1);
21 }
22}
23
24int voices = 0;
25double frequency = 0;
26int volume = 0;
27long position = 0;
28
29double frequencies[8] = {0, 0, 0, 0, 0, 0, 0, 0};
30int volumes[8] = {0, 0, 0, 0, 0, 0, 0, 0};
31bool sliding = false;
32#define RANGE 1000
33volatile int i=0; //elements of the wave
34
35int max = 0xFF;
36float sum = 0;
37int value = 128;
38float place = 0;
39
40uint16_t place_int = 0;
41bool repeat = true;
42uint8_t * sample;
43uint16_t sample_length = 0;
44
45
46bool notes = false;
47float note_frequency = 0;
48float note_length = 0;
49uint16_t note_position = 0;
50float (* notes_pointer)[][2];
51uint8_t notes_length;
52bool notes_repeat;
53uint8_t current_note = 0;
54
55void stop_all_notes() {
56 voices = 0;
57 TIMSK3 &= ~_BV(OCIE3A);
58 notes = false;
59 playing_notes = false;
60 frequency = 0;
61 volume = 0;
62
63 for (int i = 0; i < 8; i++) {
64 frequencies[i] = 0;
65 volumes[i] = 0;
66 }
67}
68
69void stop_note(double freq) {
70 freq = freq / SAMPLE_RATE;
71 for (int i = 7; i >= 0; i--) {
72 if (frequencies[i] == freq) {
73 frequencies[i] = 0;
74 volumes[i] = 0;
75 for (int j = i; (j < 7); j++) {
76 frequencies[j] = frequencies[j+1];
77 frequencies[j+1] = 0;
78 volumes[j] = volumes[j+1];
79 volumes[j+1] = 0;
80 }
81 }
82 }
83 voices--;
84 if (voices < 0)
85 voices = 0;
86 if (voices == 0) {
87 TIMSK3 &= ~_BV(OCIE3A);
88 frequency = 0;
89 volume = 0;
90 } else {
91 double freq = frequencies[voices - 1];
92 int vol = volumes[voices - 1];
93 double starting_f = frequency;
94 if (frequency < freq) {
95 sliding = true;
96 for (double f = starting_f; f <= freq; f += ((freq - starting_f) / 500.0)) {
97 frequency = f;
98 }
99 sliding = false;
100 } else if (frequency > freq) {
101 sliding = true;
102 for (double f = starting_f; f >= freq; f -= ((starting_f - freq) / 500.0)) {
103 frequency = f;
104 }
105 sliding = false;
106 }
107 frequency = freq;
108 volume = vol;
109 }
110}
111
112void init_notes() {
113
114 PLLFRQ = _BV(PDIV2);
115 PLLCSR = _BV(PLLE);
116 while(!(PLLCSR & _BV(PLOCK)));
117 PLLFRQ |= _BV(PLLTM0); /* PCK 48MHz */
118
119 /* Init a fast PWM on Timer4 */
120 TCCR4A = _BV(COM4A0) | _BV(PWM4A); /* Clear OC4A on Compare Match */
121 TCCR4B = _BV(CS40); /* No prescaling => f = PCK/256 = 187500Hz */
122 OCR4A = 0;
123
124 /* Enable the OC4A output */
125 DDRC |= _BV(PORTC6);
126
127 TIMSK3 &= ~_BV(OCIE3A); // Turn off 3A interputs
128
129 TCCR3A = 0x0; // Options not needed
130 TCCR3B = _BV(CS31) | _BV(CS30) | _BV(WGM32); // 64th prescaling and CTC
131 OCR3A = SAMPLE_DIVIDER - 1; // Correct count/compare, related to sample playback
132
133 playing_notes = false;
134
135}
136
137
138ISR(TIMER3_COMPA_vect) {
139
140
141 // SINE
142 // OCR4A = pgm_read_byte(&sinewave[(uint16_t)place]);
143
144 // SQUARE
145 // if (((int)place) >= 1024){
146 // OCR4A = 0xFF;
147 // } else {
148 // OCR4A = 0x00;
149 // }
150
151 // SAWTOOTH
152 // OCR4A = (int)place / 4;
153
154 // TRIANGLE
155 // if (((int)place) >= 1024) {
156 // OCR4A = (int)place / 2;
157 // } else {
158 // OCR4A = 2048 - (int)place / 2;
159 // }
160
161 // place += frequency;
162
163 // if (place >= SINE_LENGTH)
164 // if (repeat)
165 // place -= SINE_LENGTH;
166 // else
167 // TIMSK3 &= ~_BV(OCIE3A);
168
169 // SAMPLE
170 // OCR4A = pgm_read_byte(&sample[(uint16_t)place_int]);
171
172 // place_int++;
173
174 // if (place_int >= sample_length)
175 // if (repeat)
176 // place_int -= sample_length;
177 // else
178 // TIMSK3 &= ~_BV(OCIE3A);
179
180
181 if (notes) {
182 OCR4A = pgm_read_byte(&sinewave[(uint16_t)place]) >> 0;
183
184 place += note_frequency;
185 if (place >= SINE_LENGTH)
186 place -= SINE_LENGTH;
187 note_position++;
188 if (note_position >= note_length) {
189 current_note++;
190 if (current_note >= notes_length) {
191 if (notes_repeat) {
192 current_note = 0;
193 } else {
194 TIMSK3 &= ~_BV(OCIE3A);
195 notes = false;
196 playing_notes = false;
197 return;
198 }
199 }
200 note_frequency = (*notes_pointer)[current_note][0] / SAMPLE_RATE;
201 note_length = (*notes_pointer)[current_note][1];
202 note_position = 0;
203 }
204
205 }
206
207}
208
209void play_notes(float (*np)[][2], uint8_t n_length, bool n_repeat) {
210 notes = true;
211
212 notes_pointer = np;
213 notes_length = n_length;
214 notes_repeat = n_repeat;
215
216 place = 0;
217 current_note = 0;
218 note_frequency = (*notes_pointer)[current_note][0] / SAMPLE_RATE;
219 note_length = (*notes_pointer)[current_note][1];
220 // note_frequency = 880.0 / SAMPLE_RATE;
221 // note_length = 1000;
222 note_position = 0;
223
224
225 TIMSK3 |= _BV(OCIE3A);
226 playing_notes = true;
227}
228
229void play_sample(uint8_t * s, uint16_t l, bool r) {
230 place_int = 0;
231 sample = s;
232 sample_length = l;
233 repeat = r;
234
235 TIMSK3 |= _BV(OCIE3A);
236 playing_notes = true;
237}
238
239void play_note(double freq, int vol) {
240
241 freq = freq / SAMPLE_RATE;
242 if (freq > 0) {
243 if (frequency != 0) {
244 double starting_f = frequency;
245 if (frequency < freq) {
246 for (double f = starting_f; f <= freq; f += ((freq - starting_f) / 500.0)) {
247 frequency = f;
248 }
249 } else if (frequency > freq) {
250 for (double f = starting_f; f >= freq; f -= ((starting_f - freq) / 500.0)) {
251 frequency = f;
252 }
253 }
254 }
255 frequency = freq;
256 volume = vol;
257
258 frequencies[voices] = frequency;
259 volumes[voices] = volume;
260 voices++;
261 }
262
263 TIMSK3 |= _BV(OCIE3A);
264
265} \ No newline at end of file
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