trezor-firmware/src/main.py

import boot  # noqa: F401

from trezor import io
from trezor import log
from trezor import loop
from trezor import utils
from trezor import wire
from trezor import workflow

from apps.common.storage import get_device_id

log.level = log.DEBUG

# initialize the USB stack

usb_wire = io.WebUSB(
    iface_num=0,
    ep_in=0x81,
    ep_out=0x01,
)

if __debug__:
    usb_debug = io.WebUSB(
        iface_num=1,
        ep_in=0x82,
        ep_out=0x02,
    )
    usb_vcp = io.VCP(
        iface_num=2,
        data_iface_num=3,
        ep_in=0x83,
        ep_out=0x03,
        ep_cmd=0x84,
    )
else:
    usb_u2f = io.HID(
        iface_num=1,
        ep_in=0x82,
        ep_out=0x02,
        report_desc=bytes([
            0x06, 0xd0, 0xf1,  # USAGE_PAGE (FIDO Alliance)
            0x09, 0x01,        # USAGE (U2F HID Authenticator Device)
            0xa1, 0x01,        # COLLECTION (Application)
            0x09, 0x20,        # USAGE (Input Report Data)
            0x15, 0x00,        # LOGICAL_MINIMUM (0)
            0x26, 0xff, 0x00,  # LOGICAL_MAXIMUM (255)
            0x75, 0x08,        # REPORT_SIZE (8)
            0x95, 0x40,        # REPORT_COUNT (64)
            0x81, 0x02,        # INPUT (Data,Var,Abs)
            0x09, 0x21,        # USAGE (Output Report Data)
            0x15, 0x00,        # LOGICAL_MINIMUM (0)
            0x26, 0xff, 0x00,  # LOGICAL_MAXIMUM (255)
            0x75, 0x08,        # REPORT_SIZE (8)
            0x95, 0x40,        # REPORT_COUNT (64)
            0x91, 0x02,        # OUTPUT (Data,Var,Abs)
            0xc0,              # END_COLLECTION
        ]),
    )

usb = io.USB(
    vendor_id=0x1209,
    product_id=0x53C1,
    release_num=0x0200,
    manufacturer="SatoshiLabs",
    product="TREZOR",
    serial_number=get_device_id(),
    interface="TREZOR Interface",
)

usb.add(usb_wire)
if __debug__:
    usb.add(usb_debug)
    usb.add(usb_vcp)
else:
    usb.add(usb_u2f)

# load applications
from apps import homescreen
from apps import management
from apps import wallet
from apps import ethereum
if __debug__:
    from apps import debug
else:
    from apps import fido_u2f

# boot applications
homescreen.boot()
management.boot()
wallet.boot()
ethereum.boot()
if __debug__:
    debug.boot()
else:
    fido_u2f.boot(usb_u2f)

# initialize the wire codec and start the USB
wire.setup(usb_wire)
if __debug__:
    wire.setup(usb_debug)
usb.open()

utils.set_mode_unprivileged()

# load default homescreen
from apps.homescreen.homescreen import homescreen

# run main even loop and specify which screen is default
workflow.startdefault(homescreen)
loop.run()