313 lines
9.7 KiB
Python
313 lines
9.7 KiB
Python
"""Interactions with compatible XAP devices
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"""
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import cmd
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import json
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import random
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import gzip
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from platform import platform
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from milc import cli
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from qmk.xap.common import get_xap_keycodes
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KEYCODE_MAP = get_xap_keycodes('0.2.0')
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def _is_xap_usage(x):
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return x['usage_page'] == 0xFF51 and x['usage'] == 0x0058
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def _is_filtered_device(x):
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name = "%04x:%04x" % (x['vendor_id'], x['product_id'])
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return name.lower().startswith(cli.args.device.lower())
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def _search():
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devices = filter(_is_xap_usage, hid.enumerate())
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if cli.args.device:
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devices = filter(_is_filtered_device, devices)
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return list(devices)
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def print_dotted_output(kb_info_json, prefix=''):
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"""Print the info.json in a plain text format with dot-joined keys.
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"""
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for key in sorted(kb_info_json):
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new_prefix = f'{prefix}.{key}' if prefix else key
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if key in ['parse_errors', 'parse_warnings']:
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continue
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elif key == 'layouts' and prefix == '':
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cli.echo(' {fg_blue}layouts{fg_reset}: %s', ', '.join(sorted(kb_info_json['layouts'].keys())))
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elif isinstance(kb_info_json[key], bytes):
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conv = "".join(["{:02X}".format(b) for b in kb_info_json[key]])
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cli.echo(' {fg_blue}%s{fg_reset}: %s', new_prefix, conv)
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elif isinstance(kb_info_json[key], dict):
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print_dotted_output(kb_info_json[key], new_prefix)
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elif isinstance(kb_info_json[key], list):
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data = kb_info_json[key]
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if len(data) and isinstance(data[0], dict):
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for index, item in enumerate(data, start=0):
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cli.echo(' {fg_blue}%s.%s{fg_reset}: %s', new_prefix, index, str(item))
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else:
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cli.echo(' {fg_blue}%s{fg_reset}: %s', new_prefix, ', '.join(sorted(map(str, data))))
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else:
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cli.echo(' {fg_blue}%s{fg_reset}: %s', new_prefix, kb_info_json[key])
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def _xap_transaction(device, sub, route, *args):
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# gen token
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tok = random.getrandbits(16)
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token = tok.to_bytes(2, byteorder='little')
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# send with padding
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# TODO: this code is total garbage
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args_data = []
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args_len = 2
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if len(args) == 1:
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if isinstance(args[0], (bytes, bytearray)):
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args_len += len(args[0])
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args_data = args[0]
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else:
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args_len += 2
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args_data = args[0].to_bytes(2, byteorder='little')
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padding_len = 64 - 3 - args_len
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padding = b"\x00" * padding_len
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if args_data:
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padding = args_data + padding
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buffer = token + args_len.to_bytes(1, byteorder='little') + sub.to_bytes(1, byteorder='little') + route.to_bytes(1, byteorder='little') + padding
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# prepend 0 on windows because reasons...
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if 'windows' in platform().lower():
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buffer = b"\x00" + buffer
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device.write(buffer)
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# get resp
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array_alpha = device.read(64, 100)
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# validate tok sent == resp
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if str(token) != str(array_alpha[:2]):
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return None
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if int(array_alpha[2]) != 0x01:
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return None
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payload_len = int(array_alpha[3])
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return array_alpha[4:4 + payload_len]
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def _query_device(device):
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ver_data = _xap_transaction(device, 0x00, 0x00)
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if not ver_data:
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return {'xap': 'UNKNOWN', 'secure': 'UNKNOWN'}
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# to u32 to BCD string
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a = (ver_data[3] << 24) + (ver_data[2] << 16) + (ver_data[1] << 8) + (ver_data[0])
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ver = f'{a>>24}.{a>>16 & 0xFF}.{a & 0xFFFF}'
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secure = int.from_bytes(_xap_transaction(device, 0x00, 0x03), 'little')
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secure = 'unlocked' if secure == 2 else 'LOCKED'
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return {'xap': ver, 'secure': secure}
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def _query_device_id(device):
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return _xap_transaction(device, 0x01, 0x08)
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def _query_device_info_len(device):
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len_data = _xap_transaction(device, 0x01, 0x05)
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if not len_data:
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return 0
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# to u32
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return (len_data[3] << 24) + (len_data[2] << 16) + (len_data[1] << 8) + (len_data[0])
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def _query_device_info_chunk(device, offset):
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return _xap_transaction(device, 0x01, 0x06, offset)
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def _query_device_info(device):
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datalen = _query_device_info_len(device)
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if not datalen:
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return {}
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data = []
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offset = 0
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while offset < datalen:
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data += _query_device_info_chunk(device, offset)
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offset += 32
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str_data = gzip.decompress(bytearray(data[:datalen]))
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return json.loads(str_data)
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def _list_devices():
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"""Dump out available devices
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"""
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cli.log.info('Available devices:')
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devices = _search()
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for dev in devices:
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device = hid.Device(path=dev['path'])
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data = _query_device(device)
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cli.log.info(" %04x:%04x %s %s [API:%s] %s", dev['vendor_id'], dev['product_id'], dev['manufacturer_string'], dev['product_string'], data['xap'], data['secure'])
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if cli.config.general.verbose:
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# TODO: better formatting like "lsusb -v"?
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data = _query_device_info(device)
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data["_id"] = _query_device_id(device)
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print_dotted_output(data)
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def xap_dummy(device):
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# get layer count
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layers = _xap_transaction(device, 0x04, 0x01)
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layers = int.from_bytes(layers, "little")
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print(f'layers:{layers}')
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# get keycode [layer:0, row:0, col:0]
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# keycode = _xap_transaction(device, 0x04, 0x02, b"\x00\x00\x00")
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# get encoder [layer:0, index:0, clockwise:0]
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keycode = _xap_transaction(device, 0x05, 0x02, b"\x00\x00\x00")
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keycode = int.from_bytes(keycode, "little")
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print(f'keycode:{KEYCODE_MAP.get(keycode, "unknown")}[{keycode}]')
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# set encoder [layer:0, index:0, clockwise:0, keycode:KC_A]
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_xap_transaction(device, 0x05, 0x03, b"\x00\x00\x00\x04\00")
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def xap_broadcast_listen(device):
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try:
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cli.log.info("Listening for XAP broadcasts...")
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while 1:
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array_alpha = device.read(64, 100)
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if str(b"\xFF\xFF") == str(array_alpha[:2]):
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if array_alpha[2] == 1:
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cli.log.info(" Broadcast: Secure[%02x]", array_alpha[4])
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else:
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cli.log.info(" Broadcast: type[%02x] data:[%02x]", array_alpha[2], array_alpha[4])
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except KeyboardInterrupt:
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cli.log.info("Stopping...")
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def xap_unlock(device):
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_xap_transaction(device, 0x00, 0x04)
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class XAPShell(cmd.Cmd):
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intro = 'Welcome to the XAP shell. Type help or ? to list commands.\n'
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prompt = 'Ψ> '
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def __init__(self, device):
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cmd.Cmd.__init__(self)
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self.device = device
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# cache keycodes for this device
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self.keycodes = get_xap_keycodes(_query_device(device)['xap'])
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def do_about(self, arg):
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"""Prints out the current version of QMK with a build date
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"""
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data = _query_device(self.device)
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print(data)
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def do_unlock(self, arg):
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"""Initiate secure unlock
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"""
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xap_unlock(self.device)
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print("Done")
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def do_listen(self, arg):
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"""Log out XAP broadcast messages
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"""
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xap_broadcast_listen(self.device)
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def do_keycode(self, arg):
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"""Prints out the keycode value of a certain layer, row, and column
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"""
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data = bytes(map(int, arg.split()))
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if len(data) != 3:
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cli.log.error("Invalid args")
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return
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keycode = _xap_transaction(self.device, 0x04, 0x02, data)
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keycode = int.from_bytes(keycode, "little")
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print(f'keycode:{self.keycodes.get(keycode, "unknown")}[{keycode}]')
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def do_keymap(self, arg):
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"""Prints out the keycode values of a certain layer
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"""
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data = bytes(map(int, arg.split()))
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if len(data) != 1:
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cli.log.error("Invalid args")
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return
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info = _query_device_info(self.device)
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rows = info['matrix_size']['rows']
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cols = info['matrix_size']['cols']
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# TODO: render like qmk info?
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for r in range(rows):
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for c in range(cols):
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q = data + r.to_bytes(1, byteorder='little') + c.to_bytes(1, byteorder='little')
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keycode = _xap_transaction(self.device, 0x04, 0x02, q)
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keycode = int.from_bytes(keycode, "little")
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print(f'| {self.keycodes.get(keycode, "unknown").ljust(7)} ', end='', flush=True)
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print('|')
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def do_exit(self, line):
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"""Quit shell
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"""
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return True
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def do_EOF(self, line): # noqa: N802
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"""Quit shell (ctrl+D)
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"""
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return True
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def loop(self):
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"""Wrapper for cmdloop that handles ctrl+C
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"""
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try:
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self.cmdloop()
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print('')
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except KeyboardInterrupt:
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print('^C')
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return False
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@cli.argument('-d', '--device', help='device to select - uses format <pid>:<vid>.')
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@cli.argument('-l', '--list', arg_only=True, action='store_true', help='List available devices.')
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@cli.argument('-i', '--interactive', arg_only=True, action='store_true', help='Start interactive shell.')
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@cli.argument('action', nargs='*', default=['listen'], arg_only=True)
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@cli.subcommand('Acquire debugging information from usb XAP devices.', hidden=False if cli.config.user.developer else True)
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def xap(cli):
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"""Acquire debugging information from XAP devices
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"""
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# Lazy load to avoid issues
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global hid
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import hid
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if cli.args.list:
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return _list_devices()
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# Connect to first available device
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devices = _search()
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if not devices:
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cli.log.error("No devices found!")
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return False
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dev = devices[0]
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device = hid.Device(path=dev['path'])
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cli.log.info("Connected to:%04x:%04x %s %s", dev['vendor_id'], dev['product_id'], dev['manufacturer_string'], dev['product_string'])
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# shell?
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if cli.args.interactive:
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XAPShell(device).loop()
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return True
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XAPShell(device).onecmd(" ".join(cli.args.action))
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