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Dependents:   mbed-TFT-example-NCS36510 mbed-Accelerometer-example-NCS36510 mbed-Accelerometer-example-NCS36510

features/unsupported/USBDevice/USBMIDI/USBMIDI.cpp@0:098463de4c5d, 2017-01-25 (annotated)

Committer:
group-onsemi
Date:
Wed Jan 25 20:34:15 2017 +0000
Revision:
0:098463de4c5d
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
group-onsemi 0:098463de4c5d 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
group-onsemi 0:098463de4c5d 2 *
group-onsemi 0:098463de4c5d 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
group-onsemi 0:098463de4c5d 4 * and associated documentation files (the "Software"), to deal in the Software without
group-onsemi 0:098463de4c5d 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
group-onsemi 0:098463de4c5d 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
group-onsemi 0:098463de4c5d 7 * Software is furnished to do so, subject to the following conditions:
group-onsemi 0:098463de4c5d 8 *
group-onsemi 0:098463de4c5d 9 * The above copyright notice and this permission notice shall be included in all copies or
group-onsemi 0:098463de4c5d 10 * substantial portions of the Software.
group-onsemi 0:098463de4c5d 11 *
group-onsemi 0:098463de4c5d 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
group-onsemi 0:098463de4c5d 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
group-onsemi 0:098463de4c5d 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
group-onsemi 0:098463de4c5d 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
group-onsemi 0:098463de4c5d 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
group-onsemi 0:098463de4c5d 17 */
group-onsemi 0:098463de4c5d 18
group-onsemi 0:098463de4c5d 19 #include "stdint.h"
group-onsemi 0:098463de4c5d 20 #include "USBMIDI.h"
group-onsemi 0:098463de4c5d 21
group-onsemi 0:098463de4c5d 22
group-onsemi 0:098463de4c5d 23 USBMIDI::USBMIDI(uint16_t vendor_id, uint16_t product_id, uint16_t product_release)
group-onsemi 0:098463de4c5d 24 : USBDevice(vendor_id, product_id, product_release), cur_data(0), data_end(true)
group-onsemi 0:098463de4c5d 25 {
group-onsemi 0:098463de4c5d 26 midi_evt = NULL;
group-onsemi 0:098463de4c5d 27 USBDevice::connect();
group-onsemi 0:098463de4c5d 28 }
group-onsemi 0:098463de4c5d 29
group-onsemi 0:098463de4c5d 30 // write plain MIDIMessage that will be converted to USBMidi event packet
group-onsemi 0:098463de4c5d 31 void USBMIDI::write(MIDIMessage m) {
group-onsemi 0:098463de4c5d 32 // first byte keeped for retro-compatibility
group-onsemi 0:098463de4c5d 33 for(int p=1; p < m.length; p+=3) {
group-onsemi 0:098463de4c5d 34 uint8_t buf[4];
group-onsemi 0:098463de4c5d 35 // Midi message to USBMidi event packet
group-onsemi 0:098463de4c5d 36 buf[0]=m.data[1] >> 4;
group-onsemi 0:098463de4c5d 37 // SysEx
group-onsemi 0:098463de4c5d 38 if(buf[0] == 0xF) {
group-onsemi 0:098463de4c5d 39 if((m.length - p) > 3) {
group-onsemi 0:098463de4c5d 40 // SysEx start or continue
group-onsemi 0:098463de4c5d 41 buf[0]=0x4;
group-onsemi 0:098463de4c5d 42 } else {
group-onsemi 0:098463de4c5d 43 switch(m.length - p) {
group-onsemi 0:098463de4c5d 44 case 1:
group-onsemi 0:098463de4c5d 45 // SysEx end with one byte
group-onsemi 0:098463de4c5d 46 buf[0]=0x5;
group-onsemi 0:098463de4c5d 47 break;
group-onsemi 0:098463de4c5d 48 case 2:
group-onsemi 0:098463de4c5d 49 // SysEx end with two bytes
group-onsemi 0:098463de4c5d 50 buf[0]=0x6;
group-onsemi 0:098463de4c5d 51 break;
group-onsemi 0:098463de4c5d 52 case 3:
group-onsemi 0:098463de4c5d 53 // SysEx end with three bytes
group-onsemi 0:098463de4c5d 54 buf[0]=0x7;
group-onsemi 0:098463de4c5d 55 break;
group-onsemi 0:098463de4c5d 56 }
group-onsemi 0:098463de4c5d 57 }
group-onsemi 0:098463de4c5d 58 }
group-onsemi 0:098463de4c5d 59 buf[1]=m.data[p];
group-onsemi 0:098463de4c5d 60
group-onsemi 0:098463de4c5d 61 if(p+1 < m.length)
group-onsemi 0:098463de4c5d 62 buf[2]=m.data[p+1];
group-onsemi 0:098463de4c5d 63 else
group-onsemi 0:098463de4c5d 64 buf[2]=0;
group-onsemi 0:098463de4c5d 65
group-onsemi 0:098463de4c5d 66 if(p+2 < m.length)
group-onsemi 0:098463de4c5d 67 buf[3]=m.data[p+2];
group-onsemi 0:098463de4c5d 68 else
group-onsemi 0:098463de4c5d 69 buf[3]=0;
group-onsemi 0:098463de4c5d 70
group-onsemi 0:098463de4c5d 71 USBDevice::write(EPBULK_IN, buf, 4, MAX_PACKET_SIZE_EPBULK);
group-onsemi 0:098463de4c5d 72 }
group-onsemi 0:098463de4c5d 73 }
group-onsemi 0:098463de4c5d 74
group-onsemi 0:098463de4c5d 75
group-onsemi 0:098463de4c5d 76 void USBMIDI::attach(void (*fptr)(MIDIMessage)) {
group-onsemi 0:098463de4c5d 77 midi_evt = fptr;
group-onsemi 0:098463de4c5d 78 }
group-onsemi 0:098463de4c5d 79
group-onsemi 0:098463de4c5d 80 bool USBMIDI::EPBULK_OUT_callback() {
group-onsemi 0:098463de4c5d 81 uint8_t buf[64];
group-onsemi 0:098463de4c5d 82 uint32_t len;
group-onsemi 0:098463de4c5d 83 readEP(EPBULK_OUT, buf, &len, 64);
group-onsemi 0:098463de4c5d 84
group-onsemi 0:098463de4c5d 85 if (midi_evt != NULL) {
group-onsemi 0:098463de4c5d 86 for (uint32_t i=0; i<len; i+=4) {
group-onsemi 0:098463de4c5d 87 uint8_t data_read;
group-onsemi 0:098463de4c5d 88 data_end=true;
group-onsemi 0:098463de4c5d 89 switch(buf[i]) {
group-onsemi 0:098463de4c5d 90 case 0x2:
group-onsemi 0:098463de4c5d 91 // Two-bytes System Common Message - undefined in USBMidi 1.0
group-onsemi 0:098463de4c5d 92 data_read=2;
group-onsemi 0:098463de4c5d 93 break;
group-onsemi 0:098463de4c5d 94 case 0x4:
group-onsemi 0:098463de4c5d 95 // SysEx start or continue
group-onsemi 0:098463de4c5d 96 data_end=false;
group-onsemi 0:098463de4c5d 97 data_read=3;
group-onsemi 0:098463de4c5d 98 break;
group-onsemi 0:098463de4c5d 99 case 0x5:
group-onsemi 0:098463de4c5d 100 // Single-byte System Common Message or SysEx end with one byte
group-onsemi 0:098463de4c5d 101 data_read=1;
group-onsemi 0:098463de4c5d 102 break;
group-onsemi 0:098463de4c5d 103 case 0x6:
group-onsemi 0:098463de4c5d 104 // SysEx end with two bytes
group-onsemi 0:098463de4c5d 105 data_read=2;
group-onsemi 0:098463de4c5d 106 break;
group-onsemi 0:098463de4c5d 107 case 0xC:
group-onsemi 0:098463de4c5d 108 // Program change
group-onsemi 0:098463de4c5d 109 data_read=2;
group-onsemi 0:098463de4c5d 110 break;
group-onsemi 0:098463de4c5d 111 case 0xD:
group-onsemi 0:098463de4c5d 112 // Channel pressure
group-onsemi 0:098463de4c5d 113 data_read=2;
group-onsemi 0:098463de4c5d 114 break;
group-onsemi 0:098463de4c5d 115 case 0xF:
group-onsemi 0:098463de4c5d 116 // Single byte
group-onsemi 0:098463de4c5d 117 data_read=1;
group-onsemi 0:098463de4c5d 118 break;
group-onsemi 0:098463de4c5d 119 default:
group-onsemi 0:098463de4c5d 120 // Others three-bytes messages
group-onsemi 0:098463de4c5d 121 data_read=3;
group-onsemi 0:098463de4c5d 122 break;
group-onsemi 0:098463de4c5d 123 }
group-onsemi 0:098463de4c5d 124
group-onsemi 0:098463de4c5d 125 for(uint8_t j=1;j<data_read+1;j++) {
group-onsemi 0:098463de4c5d 126 data[cur_data]=buf[i+j];
group-onsemi 0:098463de4c5d 127 cur_data++;
group-onsemi 0:098463de4c5d 128 }
group-onsemi 0:098463de4c5d 129
group-onsemi 0:098463de4c5d 130 if(data_end) {
group-onsemi 0:098463de4c5d 131 midi_evt(MIDIMessage(data,cur_data));
group-onsemi 0:098463de4c5d 132 cur_data=0;
group-onsemi 0:098463de4c5d 133 }
group-onsemi 0:098463de4c5d 134 }
group-onsemi 0:098463de4c5d 135 }
group-onsemi 0:098463de4c5d 136
group-onsemi 0:098463de4c5d 137 // We reactivate the endpoint to receive next characters
group-onsemi 0:098463de4c5d 138 readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
group-onsemi 0:098463de4c5d 139 return true;
group-onsemi 0:098463de4c5d 140 }
group-onsemi 0:098463de4c5d 141
group-onsemi 0:098463de4c5d 142 // Called in ISR context
group-onsemi 0:098463de4c5d 143 // Set configuration. Return false if the
group-onsemi 0:098463de4c5d 144 // configuration is not supported.
group-onsemi 0:098463de4c5d 145 bool USBMIDI::USBCallback_setConfiguration(uint8_t configuration) {
group-onsemi 0:098463de4c5d 146 if (configuration != DEFAULT_CONFIGURATION) {
group-onsemi 0:098463de4c5d 147 return false;
group-onsemi 0:098463de4c5d 148 }
group-onsemi 0:098463de4c5d 149
group-onsemi 0:098463de4c5d 150 // Configure endpoints > 0
group-onsemi 0:098463de4c5d 151 addEndpoint(EPBULK_IN, MAX_PACKET_SIZE_EPBULK);
group-onsemi 0:098463de4c5d 152 addEndpoint(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
group-onsemi 0:098463de4c5d 153
group-onsemi 0:098463de4c5d 154 // We activate the endpoint to be able to receive data
group-onsemi 0:098463de4c5d 155 readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
group-onsemi 0:098463de4c5d 156 return true;
group-onsemi 0:098463de4c5d 157 }
group-onsemi 0:098463de4c5d 158
group-onsemi 0:098463de4c5d 159
group-onsemi 0:098463de4c5d 160 uint8_t * USBMIDI::stringIinterfaceDesc() {
group-onsemi 0:098463de4c5d 161 static uint8_t stringIinterfaceDescriptor[] = {
group-onsemi 0:098463de4c5d 162 0x0c, //bLength
group-onsemi 0:098463de4c5d 163 STRING_DESCRIPTOR, //bDescriptorType 0x03
group-onsemi 0:098463de4c5d 164 'A',0,'u',0,'d',0,'i',0,'o',0 //bString iInterface - Audio
group-onsemi 0:098463de4c5d 165 };
group-onsemi 0:098463de4c5d 166 return stringIinterfaceDescriptor;
group-onsemi 0:098463de4c5d 167 }
group-onsemi 0:098463de4c5d 168
group-onsemi 0:098463de4c5d 169 uint8_t * USBMIDI::stringIproductDesc() {
group-onsemi 0:098463de4c5d 170 static uint8_t stringIproductDescriptor[] = {
group-onsemi 0:098463de4c5d 171 0x16, //bLength
group-onsemi 0:098463de4c5d 172 STRING_DESCRIPTOR, //bDescriptorType 0x03
group-onsemi 0:098463de4c5d 173 'M',0,'b',0,'e',0,'d',0,' ',0,'A',0,'u',0,'d',0,'i',0,'o',0 //bString iProduct - Mbed Audio
group-onsemi 0:098463de4c5d 174 };
group-onsemi 0:098463de4c5d 175 return stringIproductDescriptor;
group-onsemi 0:098463de4c5d 176 }
group-onsemi 0:098463de4c5d 177
group-onsemi 0:098463de4c5d 178
group-onsemi 0:098463de4c5d 179 uint8_t * USBMIDI::configurationDesc() {
group-onsemi 0:098463de4c5d 180 static uint8_t configDescriptor[] = {
group-onsemi 0:098463de4c5d 181 // configuration descriptor
group-onsemi 0:098463de4c5d 182 0x09, 0x02, 0x65, 0x00, 0x02, 0x01, 0x00, 0xc0, 0x50,
group-onsemi 0:098463de4c5d 183
group-onsemi 0:098463de4c5d 184 // The Audio Interface Collection
group-onsemi 0:098463de4c5d 185 0x09, 0x04, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, // Standard AC Interface Descriptor
group-onsemi 0:098463de4c5d 186 0x09, 0x24, 0x01, 0x00, 0x01, 0x09, 0x00, 0x01, 0x01, // Class-specific AC Interface Descriptor
group-onsemi 0:098463de4c5d 187 0x09, 0x04, 0x01, 0x00, 0x02, 0x01, 0x03, 0x00, 0x00, // MIDIStreaming Interface Descriptors
group-onsemi 0:098463de4c5d 188 0x07, 0x24, 0x01, 0x00, 0x01, 0x41, 0x00, // Class-Specific MS Interface Header Descriptor
group-onsemi 0:098463de4c5d 189
group-onsemi 0:098463de4c5d 190 // MIDI IN JACKS
group-onsemi 0:098463de4c5d 191 0x06, 0x24, 0x02, 0x01, 0x01, 0x00,
group-onsemi 0:098463de4c5d 192 0x06, 0x24, 0x02, 0x02, 0x02, 0x00,
group-onsemi 0:098463de4c5d 193
group-onsemi 0:098463de4c5d 194 // MIDI OUT JACKS
group-onsemi 0:098463de4c5d 195 0x09, 0x24, 0x03, 0x01, 0x03, 0x01, 0x02, 0x01, 0x00,
group-onsemi 0:098463de4c5d 196 0x09, 0x24, 0x03, 0x02, 0x06, 0x01, 0x01, 0x01, 0x00,
group-onsemi 0:098463de4c5d 197
group-onsemi 0:098463de4c5d 198 // OUT endpoint descriptor
group-onsemi 0:098463de4c5d 199 0x09, 0x05, 0x02, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
group-onsemi 0:098463de4c5d 200 0x05, 0x25, 0x01, 0x01, 0x01,
group-onsemi 0:098463de4c5d 201
group-onsemi 0:098463de4c5d 202 // IN endpoint descriptor
group-onsemi 0:098463de4c5d 203 0x09, 0x05, 0x82, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
group-onsemi 0:098463de4c5d 204 0x05, 0x25, 0x01, 0x01, 0x03,
group-onsemi 0:098463de4c5d 205 };
group-onsemi 0:098463de4c5d 206 return configDescriptor;
group-onsemi 0:098463de4c5d 207 }