mirror of
https://git.proxmox.com/git/fwupd
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bfebede490
This feature adds support for platform capability BOS descriptors which allows the device itself to ship quirk data. Use `sudo fwupdtool get-devices --save-backends=FILENAME` to save fake backend devices to a file. This allows easy creation of self tests that do not require physical hardware.
76 lines
2.2 KiB
Python
Executable File
76 lines
2.2 KiB
Python
Executable File
#!/usr/bin/python3
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# pylint: disable=invalid-name,missing-docstring
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#
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# Copyright (C) 2022 Richard Hughes <richard@hughsie.com>
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#
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# SPDX-License-Identifier: LGPL-2.1+
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#
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# pylint: disable=consider-using-f-string
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import sys
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import argparse
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import configparser
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import base64
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from typing import List
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if __name__ == "__main__":
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parser = argparse.ArgumentParser()
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parser.add_argument(
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"-b",
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"--bufsz",
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type=int,
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help="Buffer size in bytes",
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)
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parser.add_argument("-i", "--instance-id", type=str, help="Device instance ID")
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parser.add_argument("filename", action="store", type=str, help="Quirk filename")
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args = parser.parse_args()
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if not args.bufsz:
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parser.print_help()
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sys.exit(1)
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config = configparser.ConfigParser()
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config.optionxform = str
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try:
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config.read(args.filename)
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except configparser.MissingSectionHeaderError:
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print("Not a quirk file")
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sys.exit(1)
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# fall back to the default if there is only one device in the quirk file
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if not args.instance_id:
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sections = config.sections()
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if len(sections) != 1:
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print("Multiple devices found, use --instance-id to choose between:")
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for section in sections:
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print(" • {}".format(section))
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sys.exit(1)
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args.instance_id = sections[0]
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# create the smallest kv store possible
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lines: List[str] = []
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try:
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for key in config[args.instance_id]:
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if key in ["Inhibit", "Issue"]:
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print("WARNING: skipping key {}".format(key))
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continue
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value = config[args.instance_id][key]
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lines.append("{}={}".format(key, value))
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except KeyError:
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print("No {} section".format(args.instance_id))
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sys.exit(1)
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# pad to the buffer size
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buf: bytes = "\n".join(lines).encode()
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if len(buf) > args.bufsz:
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print("Quirk data is larger than bufsz")
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sys.exit(1)
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buf = buf.ljust(args.bufsz, b"\0")
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# success
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print("DS20 descriptor control transfer data:")
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print(" ".join(["{:02x}".format(val) for val in list(buf)]))
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print(base64.b64encode(buf).decode())
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