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https://github.com/trezor/trezor-firmware.git
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determine hid version
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parent
d2b8f51a07
commit
73864e2979
@ -5,7 +5,6 @@ import time
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from .transport import Transport, ConnectionError
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DEVICE_IDS = [
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# (0x10c4, 0xea80), # TREZOR Shield
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(0x534c, 0x0001), # TREZOR
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]
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@ -20,6 +19,7 @@ class FakeRead(object):
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class HidTransport(Transport):
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def __init__(self, device, *args, **kwargs):
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self.hid = None
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self.hid_version = None
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self.buffer = ''
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# self.read_timeout = kwargs.get('read_timeout')
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device = device[int(bool(kwargs.get('debug_link')))]
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@ -69,9 +69,16 @@ class HidTransport(Transport):
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self.hid = hid.device()
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self.hid.open_path(self.device)
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self.hid.set_nonblocking(True)
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# the following was needed just for TREZOR Shield
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# self.hid.send_feature_report([0x41, 0x01]) # enable UART
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# self.hid.send_feature_report([0x43, 0x03]) # purge TX/RX FIFOs
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# determine hid_version
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r = self.hid.write([0, 63, ] + [0xFF] * 63)
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if r == 65:
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self.hid_version = 2
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return
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r = self.hid.write([63, ] + [0xFF] * 63)
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if r == 64:
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self.hid_version = 1
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return
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raise ConnectionError("Unknown HID version")
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def _close(self):
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self.hid.close()
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@ -84,8 +91,10 @@ class HidTransport(Transport):
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def _write(self, msg, protobuf_msg):
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msg = bytearray(msg)
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while len(msg):
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# Report ID, data padded to 63 bytes
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self.hid.write([63, ] + list(msg[:63]) + [0] * (63 - len(msg[:63])))
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if self.hid_version == 2:
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self.hid.write([0, 63, ] + list(msg[:63]) + [0] * (63 - len(msg[:63])))
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else:
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self.hid.write([63, ] + list(msg[:63]) + [0] * (63 - len(msg[:63])))
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msg = msg[63:]
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def _read(self):
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