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v4l2-ctl edid wrapper

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This commit is contained in:
Maxim Devaev
2022-06-11 13:40:24 +03:00
parent 4d415244b2
commit 9b0a687c73
1 changed files with 35 additions and 7 deletions
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42
kvmd/apps/edidconf/__init__.py
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@@ -23,8 +23,10 @@
import sys
import os
import re
import subprocess
import contextlib
import argparse
import time
from typing import List
from typing import IO
@@ -177,7 +179,7 @@ def _make_format_hex(size: int) -> Callable[[int], str]:
# =====
def main(argv: Optional[List[str]]=None) -> None:
def main(argv: Optional[List[str]]=None) -> None: # pylint: disable=too-many-branches
# (parent_parser, argv, _) = init(
# add_help=False,
# argv=argv,
@@ -189,14 +191,14 @@ def main(argv: Optional[List[str]]=None) -> None:
description="A simple and primitive KVMD EDID editor",
# parents=[parent_parser],
)
parser.add_argument("-f", "--edid-file", dest="path", default="/etc/kvmd/tc358743-edid.hex",
parser.add_argument("-f", "--edid-file", 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 specified bin/hex EDID to the [--edid-file] as a hex text", metavar="<file>")
help="Import the specified bin/hex EDID to the [--edid-file] as a hex text", metavar="<file>")
parser.add_argument("--set-audio", type=valid_bool,
help="Enable or disable basic audio", metavar="<yes|no>")
parser.add_argument("--set-mfc-id",
@@ -207,13 +209,19 @@ def main(argv: Optional[List[str]]=None) -> None:
help="Set serial number (decimal)", metavar="<uint>")
parser.add_argument("--set-monitor-name",
help="Set monitor name in DTD/MND (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-file] on the [--device]")
parser.add_argument("--device", dest="device_path", default="/dev/kvmd-video",
help="The video device", metavar="<device>")
options = parser.parse_args(argv[1:])
if options.imp:
options.export_hex = options.path
options.path = options.imp
options.export_hex = options.edid_path
options.edid_path = options.imp
edid = _Edid(options.path)
edid = _Edid(options.edid_path)
changed = False
for cmd in dir(_Edid):
@@ -228,7 +236,7 @@ def main(argv: Optional[List[str]]=None) -> None:
elif options.export_bin is not None:
edid.write_bin(options.export_bin)
elif changed:
edid.write_hex(options.path)
edid.write_hex(options.edid_path)
for (key, get, fmt) in [
("Manufacturer ID:", edid.get_mfc_id, str),
@@ -238,3 +246,23 @@ def main(argv: Optional[List[str]]=None) -> None:
("Basic audio: ", edid.get_audio, _format_bool),
]:
print(key, fmt(get()), file=sys.stderr) # type: ignore
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={options.edid_path}",
"--fix-edid-checksums",
"--info-edid",
], stdout=sys.stderr, check=True)
except subprocess.CalledProcessError as err:
raise SystemExit(str(err))