Suga koubou
Dependencies: ChaNFSSD mbed ChaNFS
USBDevice/USBMIDI/USBMIDI.cpp@1:efbcfbae4747, 2011-11-10 (annotated)
- Committer:
- okini3939
- Date:
- Thu Nov 10 03:20:42 2011 +0000
- Revision:
- 1:efbcfbae4747
- Parent:
- 0:02c293160df3
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| okini3939 | 0:02c293160df3 | 1 | // USB_MIDI.cpp |
| okini3939 | 0:02c293160df3 | 2 | // MIDI edvice example |
| okini3939 | 0:02c293160df3 | 3 | // Copyright (c) 2011 ARM Limited. All rights reserved. |
| okini3939 | 0:02c293160df3 | 4 | |
| okini3939 | 0:02c293160df3 | 5 | #include "stdint.h" |
| okini3939 | 0:02c293160df3 | 6 | #include "USBMIDI.h" |
| okini3939 | 0:02c293160df3 | 7 | #include "USBBusInterface.h" |
| okini3939 | 0:02c293160df3 | 8 | |
| okini3939 | 0:02c293160df3 | 9 | |
| okini3939 | 0:02c293160df3 | 10 | USBMIDI::USBMIDI(uint16_t vendor_id, uint16_t product_id, uint16_t product_release): USBDevice(vendor_id, product_id, product_release) { |
| okini3939 | 0:02c293160df3 | 11 | midi_evt = NULL; |
| okini3939 | 0:02c293160df3 | 12 | } |
| okini3939 | 0:02c293160df3 | 13 | |
| okini3939 | 0:02c293160df3 | 14 | void USBMIDI::write(MIDIMessage m) { |
| okini3939 | 0:02c293160df3 | 15 | USBDevice::write(EPBULK_IN, m.data, 4, MAX_PACKET_SIZE_EPBULK); |
| okini3939 | 0:02c293160df3 | 16 | } |
| okini3939 | 0:02c293160df3 | 17 | |
| okini3939 | 0:02c293160df3 | 18 | |
| okini3939 | 0:02c293160df3 | 19 | void USBMIDI::attach(void (*fptr)(MIDIMessage)) { |
| okini3939 | 0:02c293160df3 | 20 | midi_evt = fptr; |
| okini3939 | 0:02c293160df3 | 21 | } |
| okini3939 | 0:02c293160df3 | 22 | |
| okini3939 | 0:02c293160df3 | 23 | |
| okini3939 | 0:02c293160df3 | 24 | bool USBMIDI::EPBULK_OUT_callback() { |
| okini3939 | 0:02c293160df3 | 25 | uint8_t buf[64]; |
| okini3939 | 0:02c293160df3 | 26 | uint16_t len; |
| okini3939 | 0:02c293160df3 | 27 | read(EPBULK_OUT, buf, &len, 64); |
| okini3939 | 0:02c293160df3 | 28 | |
| okini3939 | 0:02c293160df3 | 29 | if (midi_evt != NULL) { |
| okini3939 | 0:02c293160df3 | 30 | for (int i=0; i<len; i+=4) { |
| okini3939 | 0:02c293160df3 | 31 | midi_evt(MIDIMessage(buf+i)); |
| okini3939 | 0:02c293160df3 | 32 | } |
| okini3939 | 0:02c293160df3 | 33 | } |
| okini3939 | 0:02c293160df3 | 34 | |
| okini3939 | 0:02c293160df3 | 35 | // We reactivate the endpoint to receive next characters |
| okini3939 | 0:02c293160df3 | 36 | readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK); |
| okini3939 | 0:02c293160df3 | 37 | return true; |
| okini3939 | 0:02c293160df3 | 38 | } |
| okini3939 | 0:02c293160df3 | 39 | |
| okini3939 | 0:02c293160df3 | 40 | |
| okini3939 | 0:02c293160df3 | 41 | |
| okini3939 | 0:02c293160df3 | 42 | bool USBMIDI::USBCallback_setConfiguration(uint8_t configuration) { |
| okini3939 | 0:02c293160df3 | 43 | // Called in ISR context |
| okini3939 | 0:02c293160df3 | 44 | // Set configuration. Return false if the |
| okini3939 | 0:02c293160df3 | 45 | // configuration is not supported. |
| okini3939 | 0:02c293160df3 | 46 | if (configuration != DEFAULT_CONFIGURATION) { |
| okini3939 | 0:02c293160df3 | 47 | return false; |
| okini3939 | 0:02c293160df3 | 48 | } |
| okini3939 | 0:02c293160df3 | 49 | |
| okini3939 | 0:02c293160df3 | 50 | // Configure endpoints > 0 |
| okini3939 | 0:02c293160df3 | 51 | addEndpoint(EPBULK_IN, MAX_PACKET_SIZE_EPBULK); |
| okini3939 | 0:02c293160df3 | 52 | addEndpoint(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK); |
| okini3939 | 0:02c293160df3 | 53 | |
| okini3939 | 0:02c293160df3 | 54 | // We activate the endpoint to be able to receive data |
| okini3939 | 0:02c293160df3 | 55 | readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK); |
| okini3939 | 0:02c293160df3 | 56 | return true; |
| okini3939 | 0:02c293160df3 | 57 | } |
| okini3939 | 0:02c293160df3 | 58 | |
| okini3939 | 0:02c293160df3 | 59 | |
| okini3939 | 0:02c293160df3 | 60 | uint8_t * USBMIDI::stringIinterfaceDesc() { |
| okini3939 | 0:02c293160df3 | 61 | static uint8_t stringIinterfaceDescriptor[] = { |
| okini3939 | 0:02c293160df3 | 62 | 0x0c, //bLength |
| okini3939 | 0:02c293160df3 | 63 | STRING_DESCRIPTOR, //bDescriptorType 0x03 |
| okini3939 | 0:02c293160df3 | 64 | 'A',0,'u',0,'d',0,'i',0,'o',0 //bString iInterface - Audio |
| okini3939 | 0:02c293160df3 | 65 | }; |
| okini3939 | 0:02c293160df3 | 66 | return stringIinterfaceDescriptor; |
| okini3939 | 0:02c293160df3 | 67 | } |
| okini3939 | 0:02c293160df3 | 68 | |
| okini3939 | 0:02c293160df3 | 69 | uint8_t * USBMIDI::stringIproductDesc() { |
| okini3939 | 0:02c293160df3 | 70 | static uint8_t stringIproductDescriptor[] = { |
| okini3939 | 0:02c293160df3 | 71 | 0x16, //bLength |
| okini3939 | 0:02c293160df3 | 72 | STRING_DESCRIPTOR, //bDescriptorType 0x03 |
| okini3939 | 0:02c293160df3 | 73 | 'M',0,'b',0,'e',0,'d',0,' ',0,'A',0,'u',0,'d',0,'i',0,'o',0 //bString iProduct - Mbed Audio |
| okini3939 | 0:02c293160df3 | 74 | }; |
| okini3939 | 0:02c293160df3 | 75 | return stringIproductDescriptor; |
| okini3939 | 0:02c293160df3 | 76 | } |
| okini3939 | 0:02c293160df3 | 77 | |
| okini3939 | 0:02c293160df3 | 78 | |
| okini3939 | 0:02c293160df3 | 79 | uint8_t * USBMIDI::configurationDesc() { |
| okini3939 | 0:02c293160df3 | 80 | static uint8_t configDescriptor[] = { |
| okini3939 | 0:02c293160df3 | 81 | // configuration descriptor |
| okini3939 | 0:02c293160df3 | 82 | 0x09, 0x02, 0x65, 0x00, 0x02, 0x01, 0x00, 0xc0, 0x50, |
| okini3939 | 0:02c293160df3 | 83 | |
| okini3939 | 0:02c293160df3 | 84 | // The Audio Interface Collection |
| okini3939 | 0:02c293160df3 | 85 | 0x09, 0x04, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, // Standard AC Interface Descriptor |
| okini3939 | 0:02c293160df3 | 86 | 0x09, 0x24, 0x01, 0x00, 0x01, 0x09, 0x00, 0x01, 0x01, // Class-specific AC Interface Descriptor |
| okini3939 | 0:02c293160df3 | 87 | 0x09, 0x04, 0x01, 0x00, 0x02, 0x01, 0x03, 0x00, 0x00, // MIDIStreaming Interface Descriptors |
| okini3939 | 0:02c293160df3 | 88 | 0x07, 0x24, 0x01, 0x00, 0x01, 0x41, 0x00, // Class-Specific MS Interface Header Descriptor |
| okini3939 | 0:02c293160df3 | 89 | |
| okini3939 | 0:02c293160df3 | 90 | // MIDI IN JACKS |
| okini3939 | 0:02c293160df3 | 91 | 0x06, 0x24, 0x02, 0x01, 0x01, 0x00, |
| okini3939 | 0:02c293160df3 | 92 | 0x06, 0x24, 0x02, 0x02, 0x02, 0x00, |
| okini3939 | 0:02c293160df3 | 93 | |
| okini3939 | 0:02c293160df3 | 94 | // MIDI OUT JACKS |
| okini3939 | 0:02c293160df3 | 95 | 0x09, 0x24, 0x03, 0x01, 0x03, 0x01, 0x02, 0x01, 0x00, |
| okini3939 | 0:02c293160df3 | 96 | 0x09, 0x24, 0x03, 0x02, 0x06, 0x01, 0x01, 0x01, 0x00, |
| okini3939 | 0:02c293160df3 | 97 | |
| okini3939 | 0:02c293160df3 | 98 | // OUT endpoint descriptor |
| okini3939 | 0:02c293160df3 | 99 | 0x09, 0x05, 0x02, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00, |
| okini3939 | 0:02c293160df3 | 100 | 0x05, 0x25, 0x01, 0x01, 0x01, |
| okini3939 | 0:02c293160df3 | 101 | |
| okini3939 | 0:02c293160df3 | 102 | // IN endpoint descriptor |
| okini3939 | 0:02c293160df3 | 103 | 0x09, 0x05, 0x82, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00, |
| okini3939 | 0:02c293160df3 | 104 | 0x05, 0x25, 0x01, 0x01, 0x03, |
| okini3939 | 0:02c293160df3 | 105 | }; |
| okini3939 | 0:02c293160df3 | 106 | return configDescriptor; |
| okini3939 | 0:02c293160df3 | 107 | } |