Changed file extensions from .c to .cpp
Fork of USBMIDI by
usbdevice.c
- Committer:
- simon
- Date:
- 2011-02-20
- Revision:
- 2:10d694d6ccdc
- Parent:
- 1:ff74eabe02cd
File content as of revision 2:10d694d6ccdc:
/* @license The MIT License * Copyright (c) 2011 mux, simon * * 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 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. */ #include "usbcore.h" #include "mbed.h" #define STANDARD_DEVICE_REQUEST (0x00) #define STANDARD_INTERFACE_REQUEST (0x01) #define STANDARD_ENDPOINT_REQUEST (0x02) #define CLASS_DEVICE_REQUEST (0x20) #define CLASS_INTERFACE_REQUEST (0x21) #define CLASS_ENDPOINT_REQUEST (0x22) #define VENDOR_DEVICE_REQUEST (0x40) #define VENDOR_INTERFACE_REQUEST (0x41) #define VENDOR_ENDPOINT_REQUEST (0x42) #define GET_STATUS (0x00) #define CLEAR_FEATURE (0x01) #define SET_FEATURE (0x03) #define SET_ADDRESS (0x05) #define GET_DESCRIPTOR (0x06) #define SET_DESCRIPTOR (0x07) #define GET_CONFIGURATION (0x08) #define SET_CONFIGURATION (0x09) #define DEVICE_DESCRIPTOR (0x01) #define CONFIG_DESCRIPTOR (0x02) #define STRING_DESCRIPTOR (0x03) #define INTERFACE_DESCRIPTOR (0x04) #define ENDPOINT_DESCRIPTOR (0x05) #define QUALIFIER_DESCRIPTOR (0x06) #define unpack(x) (x & 0xFF),((x >> 8) & 0xFF) // setup packet struct { uint8_t bmRequestType; uint8_t bRequest; uint16_t wValue; uint16_t wIndex; uint16_t wLength; } __attribute__((packed)) setup = {0}; // data packet struct { uint8_t *data; uint8_t size; uint8_t sent; } transfer = {0}; uint8_t device_descriptor[] = { 0x12, // Descriptor size in bytes (12h) DEVICE_DESCRIPTOR, // The constant DEVICE (01h) unpack(0x0200), // US2B specification release number (BCD) 0x00, // Class code 0x00, // Subclass code 0x00, // Protocol Code MAX_EP0_PSIZE, // Maximum packet size for endpoint zero unpack(0x0763), // Vendor ID unpack(0x0198), // Product ID unpack(0x0001), // Device release number (BCD) 0x00, // Index of string descriptor for the manufacturer 0x00, // Index of string descriptor for the product 0x00, // Index of string descriptor for the serial number 0x01, // Number of possible configurations }; uint8_t config_descriptor[]={ 0x09, 0x02, 0x65, 0x00, 0x02, 0x01, 0x00, 0xc0, 0x50, // configuration descriptor // The Audio Interface Collection 0x09, 0x04, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, // Standard AC Interface Descriptor 0x09, 0x24, 0x01, 0x00, 0x01, 0x09, 0x00, 0x01, 0x01, // Class-specific AC Interface Descriptor 0x09, 0x04, 0x01, 0x00, 0x02, 0x01, 0x03, 0x00, 0x00, // MIDIStreaming Interface Descriptors 0x07, 0x24, 0x01, 0x00, 0x01, 0x41, 0x00, // Class-Specific MS Interface Header Descriptor // MIDI IN JACKS 0x06, 0x24, 0x02, 0x01, 0x01, 0x00, 0x06, 0x24, 0x02, 0x02, 0x02, 0x00, // MIDI OUT JACKS 0x09, 0x24, 0x03, 0x01, 0x03, 0x01, 0x02, 0x01, 0x00, 0x09, 0x24, 0x03, 0x02, 0x06, 0x01, 0x01, 0x01, 0x00, // OUT endpoint descriptor 0x09, 0x05, 0x02, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00, 0x05, 0x25, 0x01, 0x01, 0x01, // IN endpoint descriptor 0x09, 0x05, 0x82, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00, 0x05, 0x25, 0x01, 0x01, 0x03, }; void ep0_in(); void data_in_stage(uint8_t *desc, uint8_t length) { transfer.sent = 0; transfer.data = desc; transfer.size = length; ep0_in(); } void status_in_stage() { ep_write(EP1, 0, 0); // ZLEP for status stage } void ep0_setup() { ep_read(EP0,(uint8_t*) &setup); switch (setup.bmRequestType & 0x7f) { // mask direction case STANDARD_DEVICE_REQUEST: switch (setup.bRequest) { case GET_DESCRIPTOR: switch ((setup.wValue>>8)) { case DEVICE_DESCRIPTOR: // device descriptor request case QUALIFIER_DESCRIPTOR: // device qualifier descriptor data_in_stage(device_descriptor, sizeof(device_descriptor)); break; case CONFIG_DESCRIPTOR: // configuration descriptor data_in_stage(config_descriptor, setup.wLength); break; case STRING_DESCRIPTOR: break; default: break; } break; case SET_ADDRESS: usb_set_address((uint8_t) (setup.wValue & 0xFF)); status_in_stage(); break; case SET_CONFIGURATION: if (!setup.wValue) { break; } ep_realize(EP4, MAX_EPn_PSIZE); ep_realize(EP5, MAX_EPn_PSIZE); status_in_stage(); usb_configure(1); break; default: break; } break; default: break; } } void ep0_in() { if ((setup.bmRequestType & 0x80) && transfer.size) { // device to host if (transfer.size > MAX_EP0_PSIZE) { transfer.sent = MAX_EP0_PSIZE; } else { transfer.sent = transfer.size; } ep_write(EP1, transfer.data, transfer.sent); transfer.data += transfer.sent; transfer.size -= transfer.sent; } } void ep0_out() { uint8_t buf[64]; ep_read(EP0, buf); }