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# ========================================================================== #
# #
# KVMD - The main PiKVM daemon. #
# #
# Copyright (C) 2018-2024 Maxim Devaev <[email protected]> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <https://www.gnu.org/licenses/>. #
# #
# ========================================================================== #
import sys
import os
import subprocess
import argparse
import time
from typing import Callable
from ...validators.basic import valid_bool
from ...validators.basic import valid_int_f0
from ...edid import EdidNoBlockError
from ...edid import Edid
# from .. import init
# =====
def _format_bool(value: bool) -> str:
return ("yes" if value else "no")
def _make_format_hex(size: int) -> Callable[[int], str]:
return (lambda value: ("0x{:0%dX} ({})" % (size * 2)).format(value, value))
def _print_edid(edid: Edid) -> None:
for (key, get, fmt) in [
("Manufacturer ID:", edid.get_mfc_id, str),
("Product ID: ", edid.get_product_id, _make_format_hex(2)),
("Serial number: ", edid.get_serial, _make_format_hex(4)),
("Monitor name: ", edid.get_monitor_name, str),
("Monitor serial: ", edid.get_monitor_serial, str),
("Audio: ", edid.get_audio, _format_bool),
]:
try:
print(key, fmt(get()), file=sys.stderr) # type: ignore
except EdidNoBlockError:
pass
# =====
def main(argv: (list[str] | None)=None) -> None: # pylint: disable=too-many-branches,too-many-statements
# (parent_parser, argv, _) = init(
# add_help=False,
# argv=argv,
# )
if argv is None:
argv = sys.argv
parser = argparse.ArgumentParser(
prog="kvmd-edidconf",
description="A simple and primitive KVMD EDID editor",
# parents=[parent_parser],
)
lane2 = ["v0", "v1", "v2", "v3"]
lane4 = ["v4mini", "v4plus"]
presets = lane2 + lane4 + [f"{name}.1080p-by-default" for name in lane2] + [f"{name}.no-1920x1200" for name in lane4]
parser.add_argument("-f", "--edid", dest="edid_path", default="/etc/kvmd/tc358743-edid.hex",
help="The hex/bin EDID file path", metavar="<file>")
parser.add_argument("--export-hex",
help="Export [--edid] file to the new file as a hex text", metavar="<file>")
parser.add_argument("--export-bin",
help="Export [--edid] file to the new file as a bin data", metavar="<file>")
parser.add_argument("--import", dest="imp",
help="Import the specified bin/hex EDID to the [--edid] file as a hex text", metavar="<file>")
parser.add_argument("--import-preset", choices=presets,
help="Restore default EDID or choose the preset", metavar=f"{{ {' | '.join(presets)} }}",)
parser.add_argument("--set-audio", type=valid_bool,
help="Enable or disable audio", metavar="<yes|no>")
parser.add_argument("--set-mfc-id",
help="Set manufacturer ID (https://uefi.org/pnp_id_list)", metavar="<ABC>")
parser.add_argument("--set-product-id", type=valid_int_f0,
help="Set product ID (decimal)", metavar="<uint>")
parser.add_argument("--set-serial", type=valid_int_f0,
help="Set serial number (decimal)", metavar="<uint>")
parser.add_argument("--set-monitor-name",
help="Set monitor name in DTD block (ASCII, max 13 characters)", metavar="<str>")
parser.add_argument("--set-monitor-serial",
help="Set monitor serial in DTD block if exists (ASCII, max 13 characters)", metavar="<str>")
parser.add_argument("--clear", action="store_true",
help="Clear the EDID in the [--device]")
parser.add_argument("--apply", action="store_true",
help="Apply [--edid] on the [--device]")
parser.add_argument("--device", dest="device_path", default="/dev/kvmd-video",
help="The video device", metavar="<device>")
parser.add_argument("--presets", dest="presets_path", default="/usr/share/kvmd/configs.default/kvmd/edid",
help="Presets directory", metavar="<dir>")
options = parser.parse_args(argv[1:])
base: (Edid | None) = None
if options.import_preset:
imp = options.import_preset
if "." in imp:
(base_name, imp) = imp.split(".", 1) # v3.1080p-by-default
base = Edid.from_file(os.path.join(options.presets_path, f"{base_name}.hex"))
imp = f"_{imp}"
options.imp = os.path.join(options.presets_path, f"{imp}.hex")
orig_edid_path = options.edid_path
if options.imp:
options.export_hex = options.edid_path
options.edid_path = options.imp
edid = Edid.from_file(options.edid_path)
changed = False
for cmd in dir(Edid):
if cmd.startswith("set_"):
value = getattr(options, cmd)
if value is None and base is not None:
try:
value = getattr(base, cmd.replace("set_", "get_"))()
except EdidNoBlockError:
pass
if value is not None:
getattr(edid, cmd)(value)
changed = True
if options.export_hex is not None:
edid.write_hex(options.export_hex)
elif options.export_bin is not None:
edid.write_bin(options.export_bin)
elif changed:
edid.write_hex(options.edid_path)
_print_edid(edid)
try:
if options.clear:
subprocess.run([
"/usr/bin/v4l2-ctl",
f"--device={options.device_path}",
"--clear-edid",
], stdout=sys.stderr, check=True)
if options.apply:
time.sleep(1)
if options.apply:
subprocess.run([
"/usr/bin/v4l2-ctl",
f"--device={options.device_path}",
f"--set-edid=file={orig_edid_path}",
"--info-edid",
], stdout=sys.stderr, check=True)
except subprocess.CalledProcessError as ex:
raise SystemExit(str(ex))
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