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USB device stack

Dependents:   mbed-mX-USB-TEST1 USBMSD_SD_HID_HelloWorld HidTest MIDI_usb_bridge ... more

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USBMIDI/USBMIDI.cpp@71:53949e6131f6, 2017-07-27 (annotated)

Committer:
Kojto
Date:
Thu Jul 27 12:14:04 2017 +0100
Revision:
71:53949e6131f6
Parent:
50:a3c50882f2c5 
Update libraries



Fixes the previous commmit, as some devices were not copied. USBDevice contains

now targets directory with all targets implementations

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samux 1:80ab0d068708 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
samux 1:80ab0d068708 2 *
samux 1:80ab0d068708 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
samux 1:80ab0d068708 4 * and associated documentation files (the "Software"), to deal in the Software without
samux 1:80ab0d068708 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
samux 1:80ab0d068708 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
samux 1:80ab0d068708 7 * Software is furnished to do so, subject to the following conditions:
samux 1:80ab0d068708 8 *
samux 1:80ab0d068708 9 * The above copyright notice and this permission notice shall be included in all copies or
samux 1:80ab0d068708 10 * substantial portions of the Software.
samux 1:80ab0d068708 11 *
samux 1:80ab0d068708 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
samux 1:80ab0d068708 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
samux 1:80ab0d068708 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
samux 1:80ab0d068708 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
samux 1:80ab0d068708 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
samux 1:80ab0d068708 17 */
samux 1:80ab0d068708 18
samux 1:80ab0d068708 19 #include "stdint.h"
samux 1:80ab0d068708 20 #include "USBMIDI.h"
samux 1:80ab0d068708 21
samux 1:80ab0d068708 22
mbed_official 50:a3c50882f2c5 23 USBMIDI::USBMIDI(uint16_t vendor_id, uint16_t product_id, uint16_t product_release)
mbed_official 50:a3c50882f2c5 24 : USBDevice(vendor_id, product_id, product_release), cur_data(0), data_end(true)
mbed_official 50:a3c50882f2c5 25 {
samux 1:80ab0d068708 26 midi_evt = NULL;
samux 1:80ab0d068708 27 USBDevice::connect();
samux 1:80ab0d068708 28 }
samux 1:80ab0d068708 29
mbed_official 48:03f8e580579a 30 // write plain MIDIMessage that will be converted to USBMidi event packet
samux 1:80ab0d068708 31 void USBMIDI::write(MIDIMessage m) {
mbed_official 48:03f8e580579a 32 // first byte keeped for retro-compatibility
mbed_official 48:03f8e580579a 33 for(int p=1; p < m.length; p+=3) {
mbed_official 48:03f8e580579a 34 uint8_t buf[4];
mbed_official 48:03f8e580579a 35 // Midi message to USBMidi event packet
mbed_official 48:03f8e580579a 36 buf[0]=m.data[1] >> 4;
mbed_official 48:03f8e580579a 37 // SysEx
mbed_official 48:03f8e580579a 38 if(buf[0] == 0xF) {
mbed_official 48:03f8e580579a 39 if((m.length - p) > 3) {
mbed_official 48:03f8e580579a 40 // SysEx start or continue
mbed_official 48:03f8e580579a 41 buf[0]=0x4;
mbed_official 48:03f8e580579a 42 } else {
mbed_official 48:03f8e580579a 43 switch(m.length - p) {
mbed_official 48:03f8e580579a 44 case 1:
mbed_official 48:03f8e580579a 45 // SysEx end with one byte
mbed_official 48:03f8e580579a 46 buf[0]=0x5;
mbed_official 48:03f8e580579a 47 break;
mbed_official 48:03f8e580579a 48 case 2:
mbed_official 48:03f8e580579a 49 // SysEx end with two bytes
mbed_official 48:03f8e580579a 50 buf[0]=0x6;
mbed_official 48:03f8e580579a 51 break;
mbed_official 48:03f8e580579a 52 case 3:
mbed_official 48:03f8e580579a 53 // SysEx end with three bytes
mbed_official 48:03f8e580579a 54 buf[0]=0x7;
mbed_official 48:03f8e580579a 55 break;
mbed_official 48:03f8e580579a 56 }
mbed_official 48:03f8e580579a 57 }
mbed_official 48:03f8e580579a 58 }
mbed_official 48:03f8e580579a 59 buf[1]=m.data[p];
mbed_official 48:03f8e580579a 60
mbed_official 48:03f8e580579a 61 if(p+1 < m.length)
mbed_official 48:03f8e580579a 62 buf[2]=m.data[p+1];
mbed_official 48:03f8e580579a 63 else
mbed_official 48:03f8e580579a 64 buf[2]=0;
mbed_official 48:03f8e580579a 65
mbed_official 48:03f8e580579a 66 if(p+2 < m.length)
mbed_official 48:03f8e580579a 67 buf[3]=m.data[p+2];
mbed_official 48:03f8e580579a 68 else
mbed_official 48:03f8e580579a 69 buf[3]=0;
mbed_official 48:03f8e580579a 70
mbed_official 48:03f8e580579a 71 USBDevice::write(EPBULK_IN, buf, 4, MAX_PACKET_SIZE_EPBULK);
mbed_official 48:03f8e580579a 72 }
samux 1:80ab0d068708 73 }
samux 1:80ab0d068708 74
samux 1:80ab0d068708 75
samux 1:80ab0d068708 76 void USBMIDI::attach(void (*fptr)(MIDIMessage)) {
samux 1:80ab0d068708 77 midi_evt = fptr;
samux 1:80ab0d068708 78 }
samux 1:80ab0d068708 79
mbed_official 47:a0cd9646ecd1 80 bool USBMIDI::EPBULK_OUT_callback() {
samux 1:80ab0d068708 81 uint8_t buf[64];
samux 1:80ab0d068708 82 uint32_t len;
samux 1:80ab0d068708 83 readEP(EPBULK_OUT, buf, &len, 64);
samux 1:80ab0d068708 84
samux 1:80ab0d068708 85 if (midi_evt != NULL) {
mbed_official 48:03f8e580579a 86 for (uint32_t i=0; i<len; i+=4) {
mbed_official 48:03f8e580579a 87 uint8_t data_read;
mbed_official 48:03f8e580579a 88 data_end=true;
mbed_official 48:03f8e580579a 89 switch(buf[i]) {
mbed_official 48:03f8e580579a 90 case 0x2:
mbed_official 48:03f8e580579a 91 // Two-bytes System Common Message - undefined in USBMidi 1.0
mbed_official 48:03f8e580579a 92 data_read=2;
mbed_official 48:03f8e580579a 93 break;
mbed_official 48:03f8e580579a 94 case 0x4:
mbed_official 48:03f8e580579a 95 // SysEx start or continue
mbed_official 48:03f8e580579a 96 data_end=false;
mbed_official 48:03f8e580579a 97 data_read=3;
mbed_official 48:03f8e580579a 98 break;
mbed_official 48:03f8e580579a 99 case 0x5:
mbed_official 48:03f8e580579a 100 // Single-byte System Common Message or SysEx end with one byte
mbed_official 48:03f8e580579a 101 data_read=1;
mbed_official 48:03f8e580579a 102 break;
mbed_official 48:03f8e580579a 103 case 0x6:
mbed_official 48:03f8e580579a 104 // SysEx end with two bytes
mbed_official 48:03f8e580579a 105 data_read=2;
mbed_official 48:03f8e580579a 106 break;
mbed_official 48:03f8e580579a 107 case 0xC:
mbed_official 48:03f8e580579a 108 // Program change
mbed_official 48:03f8e580579a 109 data_read=2;
mbed_official 48:03f8e580579a 110 break;
mbed_official 48:03f8e580579a 111 case 0xD:
mbed_official 48:03f8e580579a 112 // Channel pressure
mbed_official 48:03f8e580579a 113 data_read=2;
mbed_official 48:03f8e580579a 114 break;
mbed_official 48:03f8e580579a 115 case 0xF:
mbed_official 48:03f8e580579a 116 // Single byte
mbed_official 48:03f8e580579a 117 data_read=1;
mbed_official 48:03f8e580579a 118 break;
mbed_official 48:03f8e580579a 119 default:
mbed_official 48:03f8e580579a 120 // Others three-bytes messages
mbed_official 48:03f8e580579a 121 data_read=3;
mbed_official 48:03f8e580579a 122 break;
mbed_official 48:03f8e580579a 123 }
mbed_official 48:03f8e580579a 124
mbed_official 48:03f8e580579a 125 for(uint8_t j=1;j<data_read+1;j++) {
mbed_official 48:03f8e580579a 126 data[cur_data]=buf[i+j];
mbed_official 48:03f8e580579a 127 cur_data++;
mbed_official 48:03f8e580579a 128 }
mbed_official 48:03f8e580579a 129
mbed_official 48:03f8e580579a 130 if(data_end) {
mbed_official 48:03f8e580579a 131 midi_evt(MIDIMessage(data,cur_data));
mbed_official 48:03f8e580579a 132 cur_data=0;
mbed_official 48:03f8e580579a 133 }
mbed_official 48:03f8e580579a 134 }
samux 1:80ab0d068708 135 }
samux 1:80ab0d068708 136
samux 1:80ab0d068708 137 // We reactivate the endpoint to receive next characters
samux 1:80ab0d068708 138 readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
samux 1:80ab0d068708 139 return true;
samux 1:80ab0d068708 140 }
samux 1:80ab0d068708 141
samux 1:80ab0d068708 142 // Called in ISR context
samux 1:80ab0d068708 143 // Set configuration. Return false if the
samux 1:80ab0d068708 144 // configuration is not supported.
samux 1:80ab0d068708 145 bool USBMIDI::USBCallback_setConfiguration(uint8_t configuration) {
samux 1:80ab0d068708 146 if (configuration != DEFAULT_CONFIGURATION) {
samux 1:80ab0d068708 147 return false;
samux 1:80ab0d068708 148 }
samux 1:80ab0d068708 149
samux 1:80ab0d068708 150 // Configure endpoints > 0
samux 1:80ab0d068708 151 addEndpoint(EPBULK_IN, MAX_PACKET_SIZE_EPBULK);
samux 1:80ab0d068708 152 addEndpoint(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
samux 1:80ab0d068708 153
samux 1:80ab0d068708 154 // We activate the endpoint to be able to receive data
samux 1:80ab0d068708 155 readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
samux 1:80ab0d068708 156 return true;
samux 1:80ab0d068708 157 }
samux 1:80ab0d068708 158
samux 1:80ab0d068708 159
samux 1:80ab0d068708 160 uint8_t * USBMIDI::stringIinterfaceDesc() {
samux 1:80ab0d068708 161 static uint8_t stringIinterfaceDescriptor[] = {
samux 1:80ab0d068708 162 0x0c, //bLength
samux 1:80ab0d068708 163 STRING_DESCRIPTOR, //bDescriptorType 0x03
samux 1:80ab0d068708 164 'A',0,'u',0,'d',0,'i',0,'o',0 //bString iInterface - Audio
samux 1:80ab0d068708 165 };
samux 1:80ab0d068708 166 return stringIinterfaceDescriptor;
samux 1:80ab0d068708 167 }
samux 1:80ab0d068708 168
samux 1:80ab0d068708 169 uint8_t * USBMIDI::stringIproductDesc() {
samux 1:80ab0d068708 170 static uint8_t stringIproductDescriptor[] = {
samux 1:80ab0d068708 171 0x16, //bLength
samux 1:80ab0d068708 172 STRING_DESCRIPTOR, //bDescriptorType 0x03
samux 1:80ab0d068708 173 'M',0,'b',0,'e',0,'d',0,' ',0,'A',0,'u',0,'d',0,'i',0,'o',0 //bString iProduct - Mbed Audio
samux 1:80ab0d068708 174 };
samux 1:80ab0d068708 175 return stringIproductDescriptor;
samux 1:80ab0d068708 176 }
samux 1:80ab0d068708 177
samux 1:80ab0d068708 178
samux 1:80ab0d068708 179 uint8_t * USBMIDI::configurationDesc() {
samux 1:80ab0d068708 180 static uint8_t configDescriptor[] = {
samux 1:80ab0d068708 181 // configuration descriptor
samux 1:80ab0d068708 182 0x09, 0x02, 0x65, 0x00, 0x02, 0x01, 0x00, 0xc0, 0x50,
samux 1:80ab0d068708 183
samux 1:80ab0d068708 184 // The Audio Interface Collection
samux 1:80ab0d068708 185 0x09, 0x04, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, // Standard AC Interface Descriptor
samux 1:80ab0d068708 186 0x09, 0x24, 0x01, 0x00, 0x01, 0x09, 0x00, 0x01, 0x01, // Class-specific AC Interface Descriptor
samux 1:80ab0d068708 187 0x09, 0x04, 0x01, 0x00, 0x02, 0x01, 0x03, 0x00, 0x00, // MIDIStreaming Interface Descriptors
samux 1:80ab0d068708 188 0x07, 0x24, 0x01, 0x00, 0x01, 0x41, 0x00, // Class-Specific MS Interface Header Descriptor
samux 1:80ab0d068708 189
samux 1:80ab0d068708 190 // MIDI IN JACKS
samux 1:80ab0d068708 191 0x06, 0x24, 0x02, 0x01, 0x01, 0x00,
samux 1:80ab0d068708 192 0x06, 0x24, 0x02, 0x02, 0x02, 0x00,
samux 1:80ab0d068708 193
samux 1:80ab0d068708 194 // MIDI OUT JACKS
samux 1:80ab0d068708 195 0x09, 0x24, 0x03, 0x01, 0x03, 0x01, 0x02, 0x01, 0x00,
samux 1:80ab0d068708 196 0x09, 0x24, 0x03, 0x02, 0x06, 0x01, 0x01, 0x01, 0x00,
samux 1:80ab0d068708 197
samux 1:80ab0d068708 198 // OUT endpoint descriptor
samux 1:80ab0d068708 199 0x09, 0x05, 0x02, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
samux 1:80ab0d068708 200 0x05, 0x25, 0x01, 0x01, 0x01,
samux 1:80ab0d068708 201
samux 1:80ab0d068708 202 // IN endpoint descriptor
samux 1:80ab0d068708 203 0x09, 0x05, 0x82, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00,
samux 1:80ab0d068708 204 0x05, 0x25, 0x01, 0x01, 0x03,
samux 1:80ab0d068708 205 };
samux 1:80ab0d068708 206 return configDescriptor;
samux 1:80ab0d068708 207 }