Changed file extensions from .c to .cpp
Fork of USBMIDI by
Diff: usbdevice.c
- Revision:
- 3:1c9f95100210
- Parent:
- 2:10d694d6ccdc
diff -r 10d694d6ccdc -r 1c9f95100210 usbdevice.c --- a/usbdevice.c Sun Feb 20 13:12:22 2011 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,181 +0,0 @@ -/* @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); -}