-
Notifications
You must be signed in to change notification settings - Fork 1
/
audio.h
269 lines (245 loc) · 10.6 KB
/
audio.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
/* -*- mode: c++; tab-width: 8 -*- */
/*
* hasak (ham and swiss army knife) keyer for Teensy 4.X, 3.X
* Copyright (c) 2021, 2022 by Roger Critchlow, Charlestown, MA, USA
* ad5dz, [email protected]
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice, development funding notice, and this permission
* notice shall be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/***************************************************************
** Audio library
***************************************************************/
#include <Audio.h>
// custom audio modules
#include "src/Audio/control_wm8960.h"
#include "src/Audio/input_byte.h"
#include "src/Audio/synth_keyed_tone.h"
#include "src/Audio/output_byte.h"
#include "src/Audio/rmixer.h"
// audio sample values
#include "src/Audio/sample_value.h"
#include <Wire.h>
// Audio Library program, written by hand
// inputs
AudioInputUSB usb_in; // usb audio in
AudioInputI2S i2s_in; // i2s audio in
// AudioInputAnalog *hdw_inp; // audio input from analog 0 FIX.ME, allocate on enable
// AudioConnection *hdw_in_patch[6]; /* audio input connects to output mixers */
AudioInputByte au_st_key; // sidetone key line
AudioInputByte au_key_out; // transmitter key line
// shaped key waveform
AudioSynthKeyedTone tone_ramp(1); // one channel sidetone ramp
AudioSynthKeyedTone key_ramp(2); // two channel IQ tone ramp
AudioConnection patchCord3a(au_st_key, 0, tone_ramp, 0); // sidetone key line
AudioConnection patchCord3b(au_key_out, 1, key_ramp, 0); // transmit key line
//
// output mixers
// channel 0 rx_input from usb_in or mic_input from i2s_in
// passing in nrpns for the gain and enable parameters for each channel
// and slew paramters common to all channels
//
RAudioMixer4 l_usb_out(NRPN_MIX_USB_L0,NRPN_MIX_EN_USB_L0,NRPN_MIXER_SLEW_RAMP,NRPN_MIXER_SLEW_TIME);
RAudioMixer4 r_usb_out(NRPN_MIX_USB_R0,NRPN_MIX_EN_USB_R0,NRPN_MIXER_SLEW_RAMP,NRPN_MIXER_SLEW_TIME);
RAudioMixer4 l_i2s_out(NRPN_MIX_I2S_L0,NRPN_MIX_EN_I2S_L0,NRPN_MIXER_SLEW_RAMP,NRPN_MIXER_SLEW_TIME);
RAudioMixer4 r_i2s_out(NRPN_MIX_I2S_R0,NRPN_MIX_EN_I2S_R0,NRPN_MIXER_SLEW_RAMP,NRPN_MIXER_SLEW_TIME);
RAudioMixer4 l_hdw_out(NRPN_MIX_HDW_L0,NRPN_MIX_EN_HDW_L0,NRPN_MIXER_SLEW_RAMP,NRPN_MIXER_SLEW_TIME);
RAudioMixer4 r_hdw_out(NRPN_MIX_HDW_R0,NRPN_MIX_EN_HDW_R0,NRPN_MIXER_SLEW_RAMP,NRPN_MIXER_SLEW_TIME);
// first output channel, rx audio and microphone/line-in input, op on headset mode
// switch codec to use microphone instead of line-in
AudioConnection patchCord900(i2s_in, 0, l_usb_out, 0);
AudioConnection patchCord910(i2s_in, 1, r_usb_out, 0);
AudioConnection patchCord920(usb_in, 0, l_i2s_out, 0);
AudioConnection patchCord930(usb_in, 1, r_i2s_out, 0);
AudioConnection patchCord940(usb_in, 0, l_hdw_out, 0);
AudioConnection patchCord950(usb_in, 1, r_hdw_out, 0);
// second channel, keyed sidetone
// probably only sent to i2s for headphones/speakers
// balance l vs r to localize
// adjust level of sidetone
AudioConnection patchCord901(tone_ramp, 0, l_usb_out, 1);
AudioConnection patchCord911(tone_ramp, 0, r_usb_out, 1);
AudioConnection patchCord921(tone_ramp, 0, l_i2s_out, 1);
AudioConnection patchCord931(tone_ramp, 0, r_i2s_out, 1);
AudioConnection patchCord941(tone_ramp, 0, l_hdw_out, 1);
AudioConnection patchCord951(tone_ramp, 0, r_hdw_out, 1);
// third channel, keyed IQ oscillator,
// send to usb_out to provide soundcard IQ TX stream to host sdr
// send to i2s_out to provide soundcard IQ TX stream to softrock
// also used for diagnostics when iq is disabled
AudioConnection patchCord902(key_ramp, 0, l_usb_out, 2);
AudioConnection patchCord912(key_ramp, 1, r_usb_out, 2);
AudioConnection patchCord922(key_ramp, 0, l_i2s_out, 2);
AudioConnection patchCord932(key_ramp, 1, r_i2s_out, 2);
AudioConnection patchCord942(key_ramp, 0, l_hdw_out, 2);
AudioConnection patchCord952(key_ramp, 1, r_hdw_out, 2);
// fourth channel, hdw_in when enabled FIX.ME
AudioConnection patchCord903(usb_in, 0, l_usb_out, 3);
AudioConnection patchCord913(usb_in, 1, r_usb_out, 3);
AudioConnection patchCord923(i2s_in, 0, l_i2s_out, 3);
AudioConnection patchCord933(i2s_in, 1, r_i2s_out, 3);
AudioConnection patchCord943(i2s_in, 0, l_hdw_out, 3);
AudioConnection patchCord953(i2s_in, 1, r_hdw_out, 3);
AudioOutputUSB usb_out;
AudioConnection patchCord11a(l_usb_out, 0, usb_out, 0);
AudioConnection patchCord11b(r_usb_out, 0, usb_out, 1);
AudioOutputI2S i2s_out;
AudioConnection patchCord11c(l_i2s_out, 0, i2s_out, 0);
AudioConnection patchCord11d(r_i2s_out, 0, i2s_out, 1);
#if defined(TEENSY31) || defined(TEENSY32)
AudioOutputAnalog hdw_out;
#elif defined(TEENSY35) || defined(TEENSY36)
AudioOutputAnalogStereo hdw_out;
#elif defined(TEENSY40) || defined(TEENSY41)
AudioOutputMQS hdw_out;
#endif
AudioConnection *hdw_out_patch[2];
// codec control
AudioControlSGTL5000 sgtl5000; // the codec in the teensy audio shield
AudioControlWM8960 wm8960; // the codec in the CWKeyer shield
//
// access to component names
//
static const char *audio_comp_name(int index) {
switch (index) {
case AUDIO_USB_IN: return "usb_in";
case AUDIO_I2S_IN: return "i2s_in";
// case AUDIO_HDW_IN: return "hdw_in";
case AUDIO_ST_KEY: return "au_st_key";
case AUDIO_KEY_OUT: return "au_key_out";
case AUDIO_ST_OSC: return "tone_ramp";
case AUDIO_IQ_OSC: return "key_ramp";
case AUDIO_L_USB_OUT: return "l_usb_out";
case AUDIO_R_USB_OUT: return "r_usb_out";
case AUDIO_L_I2S_OUT: return "l_i2s_out";
case AUDIO_R_I2S_OUT: return "r_i2s_out";
case AUDIO_L_HDW_OUT: return "l_hdw_out";
case AUDIO_R_HDW_OUT: return "r_hdw_out";
case AUDIO_USB_OUT: return "usb_out";
case AUDIO_I2S_OUT: return "i2s_out";
case AUDIO_HDW_OUT: return "hdw_out";
default:
Serial.printf("audio_comp_name(%d) invalid index %d\n", index, index);
return NULL;
}
}
//
// access to components
//
static AudioStream *audio_comp(int index) {
switch (index) {
case AUDIO_USB_IN: return &usb_in;
case AUDIO_I2S_IN: return &i2s_in;
// case AUDIO_HDW_IN: return hdw_inp;
case AUDIO_ST_KEY: return &au_st_key;
case AUDIO_KEY_OUT: return &au_key_out;
case AUDIO_ST_OSC: return &tone_ramp;
case AUDIO_IQ_OSC: return &key_ramp;
case AUDIO_L_USB_OUT: return &l_usb_out;
case AUDIO_R_USB_OUT: return &r_usb_out;
case AUDIO_L_I2S_OUT: return &l_i2s_out;
case AUDIO_R_I2S_OUT: return &r_i2s_out;
case AUDIO_L_HDW_OUT: return &l_hdw_out;
case AUDIO_R_HDW_OUT: return &r_hdw_out;
case AUDIO_USB_OUT: return &usb_out;
case AUDIO_I2S_OUT: return &i2s_out;
case AUDIO_HDW_OUT: return &hdw_out;
default:
Serial.printf("audio_comp(%d) invalid index %d\n", index, index);
return NULL;
}
}
//
// fetch the update counter
//
static unsigned audio_update_counter(void) { return au_st_key.update_counter; }
//
// reset the audio cpu cycle counts
//
static void audio_timing_reset(void) {
AudioProcessorUsageMaxReset();
AudioMemoryUsageMaxReset();
for (int i = 0; i < KYR_N_AUDIO; i += 1)
if (audio_comp(i))
audio_comp(i)->processorUsageMaxReset();
}
// error diagnostic says this is invalid because AudioInputAnalog has non-virtual members?
// optional wiring
// enable or disable hardware input
// this is a mono audio channel read from analog pin A0
//static void audio_hdw_in_enable(int nrpn, int _) {
// if (nrpn_get(nrpn)) { /* enable hardware in */
// if (hdw_inp == NULL) {
// AudioNoInterrupts();
// hdw_inp = new AudioInputAnalog();
// hdw_in_patch[0] = new AudioConnection(*hdw_inp, 0, l_usb_out, 3);
// hdw_in_patch[1] = new AudioConnection(*hdw_inp, 0, r_usb_out, 3);
// hdw_in_patch[2] = new AudioConnection(*hdw_inp, 0, l_i2s_out, 3);
// hdw_in_patch[3] = new AudioConnection(*hdw_inp, 0, r_i2s_out, 3);
// hdw_in_patch[4] = new AudioConnection(*hdw_inp, 0, l_hdw_out, 3);
// hdw_in_patch[5] = new AudioConnection(*hdw_inp, 0, r_hdw_out, 3);
// AudioInterrupts();
// }
// } else { /* disable hardware in */
// if (hdw_inp != NULL) {
// AudioNoInterrupts();
// delete hdw_inp; hdw_inp = NULL;
// delete hdw_in_patch[0]; hdw_in_patch[0] = NULL;
// delete hdw_in_patch[1]; hdw_in_patch[1] = NULL;
// delete hdw_in_patch[2]; hdw_in_patch[2] = NULL;
// delete hdw_in_patch[3]; hdw_in_patch[3] = NULL;
// delete hdw_in_patch[4]; hdw_in_patch[4] = NULL;
// delete hdw_in_patch[5]; hdw_in_patch[5] = NULL;
// AudioInterrupts();
// }
// }
//}
// optional wiring
// enable or disable hardware output
// this is a mono or stereo output audio channel
static void audio_hdw_out_enable(int nrpn, int _) {
if (nrpn_get(nrpn)) {
AudioNoInterrupts();
#if defined(TEENSY31) || defined(TEENSY32)
hdw_out_patch[0] = new AudioConnection(l_hdw_out, 0, hdw_out, 0);
#elif defined(TEENSY35) || defined(TEENSY36)
hdw_out_patch[0] = new AudioConnection(l_hdw_out, 0, hdw_out, 0);
hdw_out_patch[1] = new AudioConnection(r_hdw_out, 0, hdw_out, 1);
#elif defined(TEENSY40) || defined(TEENSY41)
hdw_out_patch[0] = new AudioConnection(l_hdw_out, 0, hdw_out, 0);
hdw_out_patch[1] = new AudioConnection(r_hdw_out, 0, hdw_out, 1);
#endif
AudioInterrupts();
} else {
AudioNoInterrupts();
#if defined(TEENSY31) || defined(TEENSY32)
delete hdw_out_patch[0]; hdw_out_patch[0] = NULL;
#elif defined(TEENSY35) || defined(TEENSY36)
delete hdw_out_patch[0]; hdw_out_patch[0] = NULL;
delete hdw_out_patch[1]; hdw_out_patch[1] = NULL;
#elif defined(TEENSY40) || defined(TEENSY41)
delete hdw_out_patch[0]; hdw_out_patch[0] = NULL;
delete hdw_out_patch[1]; hdw_out_patch[1] = NULL;
#endif
AudioInterrupts();
}
}
static void audio_setup(void) {
// nrpn_listen(NRPN_HDW_IN_ENABLE, audio_hdw_in_enable);
nrpn_listen(NRPN_HDW_OUT_ENABLE, audio_hdw_out_enable);
}