Kristen Fernandez
Changed file extensions from .c to .cpp
Fork of
USBMIDI
by 
Simon Ford
Diff: usbdevice.c
- Revision:
- 3:1c9f95100210
- Parent:
- 2:10d694d6ccdc
--- 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);
-}