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# Copyright 2015 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import uuid
import composite_gadget
import echo_gadget
import hid_echo_gadget
import hid_gadget
import usb_constants
import usb_descriptors
class CompositeEchoGadget(composite_gadget.CompositeGadget):
def __init__(self):
device_desc = usb_descriptors.DeviceDescriptor(
idVendor=usb_constants.VendorID.GOOGLE,
idProduct=usb_constants.ProductID.GOOGLE_COMPOSITE_ECHO_GADGET,
bcdUSB=0x0210, # USB 2.1 to indicate support for BOS descriptors.
iManufacturer=1,
iProduct=2,
iSerialNumber=3,
bcdDevice=0x0100)
echo_feature = echo_gadget.EchoCompositeFeature(
endpoints=[(0, 5, 0x81, 0x01), (1, 6, 0x82, 0x02), (2, 7, 0x83, 0x03)])
hid_echo_feature = hid_echo_gadget.EchoFeature()
hid_feature = hid_gadget.HidCompositeFeature(
report_desc=hid_echo_gadget.EchoFeature.REPORT_DESC,
features={0: hid_echo_feature},
interface_number=3,
interface_string=4,
in_endpoint=0x84, out_endpoint=0x04)
super(CompositeEchoGadget, self).__init__(
device_desc, [echo_feature, hid_feature])
self.AddStringDescriptor(1, 'Google Inc.')
self.AddStringDescriptor(2, 'Echo Gadget')
self.AddStringDescriptor(3, '{:06X}'.format(uuid.getnode()))
self.AddStringDescriptor(4, 'HID Echo')
self.AddStringDescriptor(5, 'Interrupt Echo')
self.AddStringDescriptor(6, 'Bulk Echo')
self.AddStringDescriptor(7, 'Isochronous Echo')
# Enable Microsoft OS 2.0 Descriptors for Windows 8.1 and above.
self.EnableMicrosoftOSDescriptorsV2(vendor_code=0x02)
# These are used to force Windows to load WINUSB.SYS for the echo functions.
self.SetMicrosoftCompatId(0, 'WINUSB')
self.SetMicrosoftCompatId(1, 'WINUSB')
self.SetMicrosoftCompatId(2, 'WINUSB')
def RegisterHandlers():
"""Registers web request handlers with the application server."""
import server
from tornado import web
class WebConfigureHandler(web.RequestHandler):
def post(self):
server.SwitchGadget(CompositeEchoGadget())
server.app.add_handlers('.*$', [
(r'/composite_echo/configure', WebConfigureHandler),
])
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