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mbed-os/features/unsupported/USBHost/USBHostMIDI/USBHostMIDI.cpp@0:6bf0743ece18, 2020-03-28 (annotated)

Committer:
demayer
Date:
Sat Mar 28 15:28:19 2020 +0000
Revision:
0:6bf0743ece18
IMU Thread with an event-queue running parallel to handle tasks like a 5 times blinking LED. Button with interrupt detected.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
demayer 0:6bf0743ece18 1 /* Copyright (c) 2014 mbed.org, MIT License
demayer 0:6bf0743ece18 2 *
demayer 0:6bf0743ece18 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
demayer 0:6bf0743ece18 4 * and associated documentation files (the "Software"), to deal in the Software without
demayer 0:6bf0743ece18 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
demayer 0:6bf0743ece18 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
demayer 0:6bf0743ece18 7 * Software is furnished to do so, subject to the following conditions:
demayer 0:6bf0743ece18 8 *
demayer 0:6bf0743ece18 9 * The above copyright notice and this permission notice shall be included in all copies or
demayer 0:6bf0743ece18 10 * substantial portions of the Software.
demayer 0:6bf0743ece18 11 *
demayer 0:6bf0743ece18 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
demayer 0:6bf0743ece18 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
demayer 0:6bf0743ece18 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
demayer 0:6bf0743ece18 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
demayer 0:6bf0743ece18 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
demayer 0:6bf0743ece18 17 */
demayer 0:6bf0743ece18 18
demayer 0:6bf0743ece18 19 #include "USBHostMIDI.h"
demayer 0:6bf0743ece18 20
demayer 0:6bf0743ece18 21 #if USBHOST_MIDI
demayer 0:6bf0743ece18 22
demayer 0:6bf0743ece18 23 #include "dbg.h"
demayer 0:6bf0743ece18 24
demayer 0:6bf0743ece18 25 #define SET_LINE_CODING 0x20
demayer 0:6bf0743ece18 26
demayer 0:6bf0743ece18 27 USBHostMIDI::USBHostMIDI() {
demayer 0:6bf0743ece18 28 host = USBHost::getHostInst();
demayer 0:6bf0743ece18 29 size_bulk_in = 0;
demayer 0:6bf0743ece18 30 size_bulk_out = 0;
demayer 0:6bf0743ece18 31 init();
demayer 0:6bf0743ece18 32 }
demayer 0:6bf0743ece18 33
demayer 0:6bf0743ece18 34 void USBHostMIDI::init() {
demayer 0:6bf0743ece18 35 dev = NULL;
demayer 0:6bf0743ece18 36 bulk_in = NULL;
demayer 0:6bf0743ece18 37 bulk_out = NULL;
demayer 0:6bf0743ece18 38 dev_connected = false;
demayer 0:6bf0743ece18 39 midi_intf = -1;
demayer 0:6bf0743ece18 40 midi_device_found = false;
demayer 0:6bf0743ece18 41 sysExBufferPos = 0;
demayer 0:6bf0743ece18 42 }
demayer 0:6bf0743ece18 43
demayer 0:6bf0743ece18 44 bool USBHostMIDI::connected() {
demayer 0:6bf0743ece18 45 return dev_connected;
demayer 0:6bf0743ece18 46 }
demayer 0:6bf0743ece18 47
demayer 0:6bf0743ece18 48 bool USBHostMIDI::connect() {
demayer 0:6bf0743ece18 49 if (dev_connected) {
demayer 0:6bf0743ece18 50 return true;
demayer 0:6bf0743ece18 51 }
demayer 0:6bf0743ece18 52
demayer 0:6bf0743ece18 53 for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) {
demayer 0:6bf0743ece18 54 if ((dev = host->getDevice(i)) != NULL) {
demayer 0:6bf0743ece18 55
demayer 0:6bf0743ece18 56 USB_DBG("Trying to connect MIDI device\r\n");
demayer 0:6bf0743ece18 57
demayer 0:6bf0743ece18 58 if (host->enumerate(dev, this)) {
demayer 0:6bf0743ece18 59 break;
demayer 0:6bf0743ece18 60 }
demayer 0:6bf0743ece18 61
demayer 0:6bf0743ece18 62 if (midi_device_found) {
demayer 0:6bf0743ece18 63 bulk_in = dev->getEndpoint(midi_intf, BULK_ENDPOINT, IN);
demayer 0:6bf0743ece18 64 bulk_out = dev->getEndpoint(midi_intf, BULK_ENDPOINT, OUT);
demayer 0:6bf0743ece18 65
demayer 0:6bf0743ece18 66 if (!bulk_in || !bulk_out) {
demayer 0:6bf0743ece18 67 break;
demayer 0:6bf0743ece18 68 }
demayer 0:6bf0743ece18 69
demayer 0:6bf0743ece18 70 USB_INFO("New MIDI device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, midi_intf);
demayer 0:6bf0743ece18 71 dev->setName("MIDI", midi_intf);
demayer 0:6bf0743ece18 72 host->registerDriver(dev, midi_intf, this, &USBHostMIDI::init);
demayer 0:6bf0743ece18 73
demayer 0:6bf0743ece18 74 size_bulk_in = bulk_in->getSize();
demayer 0:6bf0743ece18 75 size_bulk_out = bulk_out->getSize();
demayer 0:6bf0743ece18 76
demayer 0:6bf0743ece18 77 bulk_in->attach(this, &USBHostMIDI::rxHandler);
demayer 0:6bf0743ece18 78
demayer 0:6bf0743ece18 79 host->bulkRead(dev, bulk_in, buf, size_bulk_in, false);
demayer 0:6bf0743ece18 80 dev_connected = true;
demayer 0:6bf0743ece18 81 return true;
demayer 0:6bf0743ece18 82 }
demayer 0:6bf0743ece18 83 }
demayer 0:6bf0743ece18 84 }
demayer 0:6bf0743ece18 85
demayer 0:6bf0743ece18 86 init();
demayer 0:6bf0743ece18 87 return false;
demayer 0:6bf0743ece18 88 }
demayer 0:6bf0743ece18 89
demayer 0:6bf0743ece18 90 void USBHostMIDI::rxHandler() {
demayer 0:6bf0743ece18 91 uint8_t *midi;
demayer 0:6bf0743ece18 92 if (bulk_in) {
demayer 0:6bf0743ece18 93 int length = bulk_in->getLengthTransferred();
demayer 0:6bf0743ece18 94 if (bulk_in->getState() == USB_TYPE_IDLE || bulk_in->getState() == USB_TYPE_FREE) {
demayer 0:6bf0743ece18 95 // MIDI event handling
demayer 0:6bf0743ece18 96 for (int i = 0; i < length; i += 4) {
demayer 0:6bf0743ece18 97 if (i + 4 > length) {
demayer 0:6bf0743ece18 98 // length shortage, ignored.
demayer 0:6bf0743ece18 99 break;
demayer 0:6bf0743ece18 100 }
demayer 0:6bf0743ece18 101
demayer 0:6bf0743ece18 102 // read each four bytes
demayer 0:6bf0743ece18 103 midi = &buf[i];
demayer 0:6bf0743ece18 104 // process MIDI message
demayer 0:6bf0743ece18 105 // switch by code index number
demayer 0:6bf0743ece18 106 switch (midi[0] & 0xf) {
demayer 0:6bf0743ece18 107 case 0: // miscellaneous function codes
demayer 0:6bf0743ece18 108 miscellaneousFunctionCode(midi[1], midi[2], midi[3]);
demayer 0:6bf0743ece18 109 break;
demayer 0:6bf0743ece18 110 case 1: // cable events
demayer 0:6bf0743ece18 111 cableEvent(midi[1], midi[2], midi[3]);
demayer 0:6bf0743ece18 112 break;
demayer 0:6bf0743ece18 113 case 2: // two bytes system common messages
demayer 0:6bf0743ece18 114 systemCommonTwoBytes(midi[1], midi[2]);
demayer 0:6bf0743ece18 115 break;
demayer 0:6bf0743ece18 116 case 3: // three bytes system common messages
demayer 0:6bf0743ece18 117 systemCommonThreeBytes(midi[1], midi[2], midi[3]);
demayer 0:6bf0743ece18 118 break;
demayer 0:6bf0743ece18 119 case 4: // SysEx starts or continues
demayer 0:6bf0743ece18 120 sysExBuffer[sysExBufferPos++] = midi[1];
demayer 0:6bf0743ece18 121 if (sysExBufferPos >= 64) {
demayer 0:6bf0743ece18 122 systemExclusive(sysExBuffer, sysExBufferPos, true);
demayer 0:6bf0743ece18 123 sysExBufferPos = 0;
demayer 0:6bf0743ece18 124 }
demayer 0:6bf0743ece18 125 sysExBuffer[sysExBufferPos++] = midi[2];
demayer 0:6bf0743ece18 126 if (sysExBufferPos >= 64) {
demayer 0:6bf0743ece18 127 systemExclusive(sysExBuffer, sysExBufferPos, true);
demayer 0:6bf0743ece18 128 sysExBufferPos = 0;
demayer 0:6bf0743ece18 129 }
demayer 0:6bf0743ece18 130 sysExBuffer[sysExBufferPos++] = midi[3];
demayer 0:6bf0743ece18 131 // SysEx continues. don't send
demayer 0:6bf0743ece18 132 break;
demayer 0:6bf0743ece18 133 case 5: // SysEx ends with single byte
demayer 0:6bf0743ece18 134 sysExBuffer[sysExBufferPos++] = midi[1];
demayer 0:6bf0743ece18 135 systemExclusive(sysExBuffer, sysExBufferPos, false);
demayer 0:6bf0743ece18 136 sysExBufferPos = 0;
demayer 0:6bf0743ece18 137 break;
demayer 0:6bf0743ece18 138 case 6: // SysEx ends with two bytes
demayer 0:6bf0743ece18 139 sysExBuffer[sysExBufferPos++] = midi[1];
demayer 0:6bf0743ece18 140 if (sysExBufferPos >= 64) {
demayer 0:6bf0743ece18 141 systemExclusive(sysExBuffer, sysExBufferPos, true);
demayer 0:6bf0743ece18 142 sysExBufferPos = 0;
demayer 0:6bf0743ece18 143 }
demayer 0:6bf0743ece18 144 sysExBuffer[sysExBufferPos++] = midi[2];
demayer 0:6bf0743ece18 145 systemExclusive(sysExBuffer, sysExBufferPos, false);
demayer 0:6bf0743ece18 146 sysExBufferPos = 0;
demayer 0:6bf0743ece18 147 break;
demayer 0:6bf0743ece18 148 case 7: // SysEx ends with three bytes
demayer 0:6bf0743ece18 149 sysExBuffer[sysExBufferPos++] = midi[1];
demayer 0:6bf0743ece18 150 if (sysExBufferPos >= 64) {
demayer 0:6bf0743ece18 151 systemExclusive(sysExBuffer, sysExBufferPos, true);
demayer 0:6bf0743ece18 152 sysExBufferPos = 0;
demayer 0:6bf0743ece18 153 }
demayer 0:6bf0743ece18 154 sysExBuffer[sysExBufferPos++] = midi[2];
demayer 0:6bf0743ece18 155 if (sysExBufferPos >= 64) {
demayer 0:6bf0743ece18 156 systemExclusive(sysExBuffer, sysExBufferPos, true);
demayer 0:6bf0743ece18 157 sysExBufferPos = 0;
demayer 0:6bf0743ece18 158 }
demayer 0:6bf0743ece18 159 sysExBuffer[sysExBufferPos++] = midi[3];
demayer 0:6bf0743ece18 160 systemExclusive(sysExBuffer, sysExBufferPos, false);
demayer 0:6bf0743ece18 161 sysExBufferPos = 0;
demayer 0:6bf0743ece18 162 break;
demayer 0:6bf0743ece18 163 case 8:
demayer 0:6bf0743ece18 164 noteOff(midi[1] & 0xf, midi[2], midi[3]);
demayer 0:6bf0743ece18 165 break;
demayer 0:6bf0743ece18 166 case 9:
demayer 0:6bf0743ece18 167 if (midi[3]) {
demayer 0:6bf0743ece18 168 noteOn(midi[1] & 0xf, midi[2], midi[3]);
demayer 0:6bf0743ece18 169 } else {
demayer 0:6bf0743ece18 170 noteOff(midi[1] & 0xf, midi[2], midi[3]);
demayer 0:6bf0743ece18 171 }
demayer 0:6bf0743ece18 172 break;
demayer 0:6bf0743ece18 173 case 10:
demayer 0:6bf0743ece18 174 polyKeyPress(midi[1] & 0xf, midi[2], midi[3]);
demayer 0:6bf0743ece18 175 break;
demayer 0:6bf0743ece18 176 case 11:
demayer 0:6bf0743ece18 177 controlChange(midi[1] & 0xf, midi[2], midi[3]);
demayer 0:6bf0743ece18 178 break;
demayer 0:6bf0743ece18 179 case 12:
demayer 0:6bf0743ece18 180 programChange(midi[1] & 0xf, midi[2]);
demayer 0:6bf0743ece18 181 break;
demayer 0:6bf0743ece18 182 case 13:
demayer 0:6bf0743ece18 183 channelPressure(midi[1] & 0xf, midi[2]);
demayer 0:6bf0743ece18 184 break;
demayer 0:6bf0743ece18 185 case 14:
demayer 0:6bf0743ece18 186 pitchBend(midi[1] & 0xf, midi[2] | (midi[3] << 7));
demayer 0:6bf0743ece18 187 break;
demayer 0:6bf0743ece18 188 case 15:
demayer 0:6bf0743ece18 189 singleByte(midi[1]);
demayer 0:6bf0743ece18 190 break;
demayer 0:6bf0743ece18 191 }
demayer 0:6bf0743ece18 192 }
demayer 0:6bf0743ece18 193
demayer 0:6bf0743ece18 194 // read another message
demayer 0:6bf0743ece18 195 host->bulkRead(dev, bulk_in, buf, size_bulk_in, false);
demayer 0:6bf0743ece18 196 }
demayer 0:6bf0743ece18 197 }
demayer 0:6bf0743ece18 198 }
demayer 0:6bf0743ece18 199
demayer 0:6bf0743ece18 200 bool USBHostMIDI::sendMidiBuffer(uint8_t data0, uint8_t data1, uint8_t data2, uint8_t data3) {
demayer 0:6bf0743ece18 201 if (bulk_out) {
demayer 0:6bf0743ece18 202 uint8_t midi[4];
demayer 0:6bf0743ece18 203
demayer 0:6bf0743ece18 204 midi[0] = data0;
demayer 0:6bf0743ece18 205 midi[1] = data1;
demayer 0:6bf0743ece18 206 midi[2] = data2;
demayer 0:6bf0743ece18 207 midi[3] = data3;
demayer 0:6bf0743ece18 208 if (host->bulkWrite(dev, bulk_out, (uint8_t *)midi, 4) == USB_TYPE_OK) {
demayer 0:6bf0743ece18 209 return true;
demayer 0:6bf0743ece18 210 }
demayer 0:6bf0743ece18 211 }
demayer 0:6bf0743ece18 212 return false;
demayer 0:6bf0743ece18 213 }
demayer 0:6bf0743ece18 214
demayer 0:6bf0743ece18 215 bool USBHostMIDI::sendMiscellaneousFunctionCode(uint8_t data1, uint8_t data2, uint8_t data3) {
demayer 0:6bf0743ece18 216 return sendMidiBuffer(0, data1, data2, data3);
demayer 0:6bf0743ece18 217 }
demayer 0:6bf0743ece18 218
demayer 0:6bf0743ece18 219 bool USBHostMIDI::sendCableEvent(uint8_t data1, uint8_t data2, uint8_t data3) {
demayer 0:6bf0743ece18 220 return sendMidiBuffer(1, data1, data2, data3);
demayer 0:6bf0743ece18 221 }
demayer 0:6bf0743ece18 222
demayer 0:6bf0743ece18 223 bool USBHostMIDI::sendSystemCommmonTwoBytes(uint8_t data1, uint8_t data2) {
demayer 0:6bf0743ece18 224 return sendMidiBuffer(2, data1, data2, 0);
demayer 0:6bf0743ece18 225 }
demayer 0:6bf0743ece18 226
demayer 0:6bf0743ece18 227 bool USBHostMIDI::sendSystemCommmonThreeBytes(uint8_t data1, uint8_t data2, uint8_t data3) {
demayer 0:6bf0743ece18 228 return sendMidiBuffer(3, data1, data2, 0);
demayer 0:6bf0743ece18 229 }
demayer 0:6bf0743ece18 230
demayer 0:6bf0743ece18 231 bool USBHostMIDI::sendSystemExclusive(uint8_t *buffer, int length) {
demayer 0:6bf0743ece18 232 uint8_t midi[64];
demayer 0:6bf0743ece18 233 int midiLength;
demayer 0:6bf0743ece18 234 int midiPos;
demayer 0:6bf0743ece18 235 if (bulk_out) {
demayer 0:6bf0743ece18 236 for (int i = 0; i < length; i += 48) {
demayer 0:6bf0743ece18 237 if (i + 48 >= length) {
demayer 0:6bf0743ece18 238 // contains last data
demayer 0:6bf0743ece18 239 midiLength = (((length - i) + 2) / 3) * 4;
demayer 0:6bf0743ece18 240 for (int pos = i; pos < length; pos += 3) {
demayer 0:6bf0743ece18 241 midiPos = (pos + 2) / 3 * 4;
demayer 0:6bf0743ece18 242 if (pos + 3 >= length) {
demayer 0:6bf0743ece18 243 // last data
demayer 0:6bf0743ece18 244 switch (pos % 3) {
demayer 0:6bf0743ece18 245 case 0:
demayer 0:6bf0743ece18 246 midi[midiPos ] = 7;
demayer 0:6bf0743ece18 247 midi[midiPos + 1] = buffer[pos ];
demayer 0:6bf0743ece18 248 midi[midiPos + 2] = buffer[pos + 1];
demayer 0:6bf0743ece18 249 midi[midiPos + 3] = buffer[pos + 2];
demayer 0:6bf0743ece18 250 break;
demayer 0:6bf0743ece18 251 case 1:
demayer 0:6bf0743ece18 252 midi[midiPos ] = 5;
demayer 0:6bf0743ece18 253 midi[midiPos + 1] = buffer[pos ];
demayer 0:6bf0743ece18 254 midi[midiPos + 2] = 0;
demayer 0:6bf0743ece18 255 midi[midiPos + 3] = 0;
demayer 0:6bf0743ece18 256 break;
demayer 0:6bf0743ece18 257 case 2:
demayer 0:6bf0743ece18 258 midi[midiPos ] = 6;
demayer 0:6bf0743ece18 259 midi[midiPos + 1] = buffer[pos ];
demayer 0:6bf0743ece18 260 midi[midiPos + 2] = buffer[pos + 1];
demayer 0:6bf0743ece18 261 midi[midiPos + 3] = 0;
demayer 0:6bf0743ece18 262 break;
demayer 0:6bf0743ece18 263 }
demayer 0:6bf0743ece18 264 } else {
demayer 0:6bf0743ece18 265 // has more data
demayer 0:6bf0743ece18 266 midi[midiPos ] = 4;
demayer 0:6bf0743ece18 267 midi[midiPos + 1] = buffer[pos ];
demayer 0:6bf0743ece18 268 midi[midiPos + 2] = buffer[pos + 1];
demayer 0:6bf0743ece18 269 midi[midiPos + 3] = buffer[pos + 2];
demayer 0:6bf0743ece18 270 }
demayer 0:6bf0743ece18 271 }
demayer 0:6bf0743ece18 272 } else {
demayer 0:6bf0743ece18 273 // has more data
demayer 0:6bf0743ece18 274 midiLength = 64;
demayer 0:6bf0743ece18 275 for (int pos = i; pos < length; pos += 3) {
demayer 0:6bf0743ece18 276 midiPos = (pos + 2) / 3 * 4;
demayer 0:6bf0743ece18 277 midi[midiPos ] = 4;
demayer 0:6bf0743ece18 278 midi[midiPos + 1] = buffer[pos ];
demayer 0:6bf0743ece18 279 midi[midiPos + 2] = buffer[pos + 1];
demayer 0:6bf0743ece18 280 midi[midiPos + 3] = buffer[pos + 2];
demayer 0:6bf0743ece18 281 }
demayer 0:6bf0743ece18 282 }
demayer 0:6bf0743ece18 283
demayer 0:6bf0743ece18 284 if (host->bulkWrite(dev, bulk_out, (uint8_t *)midi, midiLength) != USB_TYPE_OK) {
demayer 0:6bf0743ece18 285 return false;
demayer 0:6bf0743ece18 286 }
demayer 0:6bf0743ece18 287 }
demayer 0:6bf0743ece18 288 return true;
demayer 0:6bf0743ece18 289 }
demayer 0:6bf0743ece18 290 return false;
demayer 0:6bf0743ece18 291 }
demayer 0:6bf0743ece18 292
demayer 0:6bf0743ece18 293 bool USBHostMIDI::sendNoteOff(uint8_t channel, uint8_t note, uint8_t velocity) {
demayer 0:6bf0743ece18 294 return sendMidiBuffer(8, channel & 0xf | 0x80, note & 0x7f, velocity & 0x7f);
demayer 0:6bf0743ece18 295 }
demayer 0:6bf0743ece18 296
demayer 0:6bf0743ece18 297 bool USBHostMIDI::sendNoteOn(uint8_t channel, uint8_t note, uint8_t velocity) {
demayer 0:6bf0743ece18 298 return sendMidiBuffer(9, channel & 0xf | 0x90, note & 0x7f, velocity & 0x7f);
demayer 0:6bf0743ece18 299 }
demayer 0:6bf0743ece18 300
demayer 0:6bf0743ece18 301 bool USBHostMIDI::sendPolyKeyPress(uint8_t channel, uint8_t note, uint8_t pressure) {
demayer 0:6bf0743ece18 302 return sendMidiBuffer(10, channel & 0xf | 0xa0, note & 0x7f, pressure & 0x7f);
demayer 0:6bf0743ece18 303 }
demayer 0:6bf0743ece18 304
demayer 0:6bf0743ece18 305 bool USBHostMIDI::sendControlChange(uint8_t channel, uint8_t key, uint8_t value) {
demayer 0:6bf0743ece18 306 return sendMidiBuffer(11, channel & 0xf | 0xb0, key & 0x7f, value & 0x7f);
demayer 0:6bf0743ece18 307 }
demayer 0:6bf0743ece18 308
demayer 0:6bf0743ece18 309 bool USBHostMIDI::sendProgramChange(uint8_t channel, uint8_t program) {
demayer 0:6bf0743ece18 310 return sendMidiBuffer(12, channel & 0xf | 0xc0, program & 0x7f, 0);
demayer 0:6bf0743ece18 311 }
demayer 0:6bf0743ece18 312
demayer 0:6bf0743ece18 313 bool USBHostMIDI::sendChannelPressure(uint8_t channel, uint8_t pressure) {
demayer 0:6bf0743ece18 314 return sendMidiBuffer(13, channel & 0xf | 0xd0, pressure & 0x7f, 0);
demayer 0:6bf0743ece18 315 }
demayer 0:6bf0743ece18 316
demayer 0:6bf0743ece18 317 bool USBHostMIDI::sendPitchBend(uint8_t channel, uint16_t value) {
demayer 0:6bf0743ece18 318 return sendMidiBuffer(14, channel & 0xf | 0xe0, value & 0x7f, (value >> 7) & 0x7f);
demayer 0:6bf0743ece18 319 }
demayer 0:6bf0743ece18 320
demayer 0:6bf0743ece18 321 bool USBHostMIDI::sendSingleByte(uint8_t data) {
demayer 0:6bf0743ece18 322 return sendMidiBuffer(15, data, 0, 0);
demayer 0:6bf0743ece18 323 }
demayer 0:6bf0743ece18 324
demayer 0:6bf0743ece18 325 /*virtual*/ void USBHostMIDI::setVidPid(uint16_t vid, uint16_t pid)
demayer 0:6bf0743ece18 326 {
demayer 0:6bf0743ece18 327 // we don't check VID/PID for this driver
demayer 0:6bf0743ece18 328 }
demayer 0:6bf0743ece18 329
demayer 0:6bf0743ece18 330 /*virtual*/ bool USBHostMIDI::parseInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol) //Must return true if the interface should be parsed
demayer 0:6bf0743ece18 331 {
demayer 0:6bf0743ece18 332 // USB MIDI class/subclass
demayer 0:6bf0743ece18 333 if ((midi_intf == -1) &&
demayer 0:6bf0743ece18 334 (intf_class == AUDIO_CLASS) &&
demayer 0:6bf0743ece18 335 (intf_subclass == 0x03)) {
demayer 0:6bf0743ece18 336 midi_intf = intf_nb;
demayer 0:6bf0743ece18 337 return true;
demayer 0:6bf0743ece18 338 }
demayer 0:6bf0743ece18 339
demayer 0:6bf0743ece18 340 // vendor specific device
demayer 0:6bf0743ece18 341 if ((midi_intf == -1) &&
demayer 0:6bf0743ece18 342 (intf_class == 0xff) &&
demayer 0:6bf0743ece18 343 (intf_subclass == 0x03)) {
demayer 0:6bf0743ece18 344 midi_intf = intf_nb;
demayer 0:6bf0743ece18 345 return true;
demayer 0:6bf0743ece18 346 }
demayer 0:6bf0743ece18 347
demayer 0:6bf0743ece18 348 return false;
demayer 0:6bf0743ece18 349 }
demayer 0:6bf0743ece18 350
demayer 0:6bf0743ece18 351 /*virtual*/ bool USBHostMIDI::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used
demayer 0:6bf0743ece18 352 {
demayer 0:6bf0743ece18 353 if (intf_nb == midi_intf) {
demayer 0:6bf0743ece18 354 if (type == BULK_ENDPOINT) {
demayer 0:6bf0743ece18 355 midi_device_found = true;
demayer 0:6bf0743ece18 356 return true;
demayer 0:6bf0743ece18 357 }
demayer 0:6bf0743ece18 358 }
demayer 0:6bf0743ece18 359 return false;
demayer 0:6bf0743ece18 360 }
demayer 0:6bf0743ece18 361
demayer 0:6bf0743ece18 362 #endif