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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 sys
import os import os
import re import re
import subprocess
import contextlib import contextlib
import argparse import argparse
import time
from typing import List from typing import List
from typing import IO 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( # (parent_parser, argv, _) = init(
# add_help=False, # add_help=False,
# argv=argv, # argv=argv,
@@ -189,14 +191,14 @@ def main(argv: Optional[List[str]]=None) -> None:
description="A simple and primitive KVMD EDID editor", description="A simple and primitive KVMD EDID editor",
# parents=[parent_parser], # 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>") help="The hex/bin EDID file path", metavar="<file>")
parser.add_argument("--export-hex", parser.add_argument("--export-hex",
help="Export [--edid-file] to the new file as a hex text", metavar="<file>") help="Export [--edid-file] to the new file as a hex text", metavar="<file>")
parser.add_argument("--export-bin", parser.add_argument("--export-bin",
help="Export [--edid-file] to the new file as a bin data", metavar="<file>") help="Export [--edid-file] to the new file as a bin data", metavar="<file>")
parser.add_argument("--import", dest="imp", 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, parser.add_argument("--set-audio", type=valid_bool,
help="Enable or disable basic audio", metavar="<yes|no>") help="Enable or disable basic audio", metavar="<yes|no>")
parser.add_argument("--set-mfc-id", 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>") help="Set serial number (decimal)", metavar="<uint>")
parser.add_argument("--set-monitor-name", parser.add_argument("--set-monitor-name",
help="Set monitor name in DTD/MND (ASCII, max 13 characters)", metavar="<str>") 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:]) options = parser.parse_args(argv[1:])
if options.imp: if options.imp:
options.export_hex = options.path options.export_hex = options.edid_path
options.path = options.imp options.edid_path = options.imp
edid = _Edid(options.path) edid = _Edid(options.edid_path)
changed = False changed = False
for cmd in dir(_Edid): for cmd in dir(_Edid):
@@ -228,7 +236,7 @@ def main(argv: Optional[List[str]]=None) -> None:
elif options.export_bin is not None: elif options.export_bin is not None:
edid.write_bin(options.export_bin) edid.write_bin(options.export_bin)
elif changed: elif changed:
edid.write_hex(options.path) edid.write_hex(options.edid_path)
for (key, get, fmt) in [ for (key, get, fmt) in [
("Manufacturer ID:", edid.get_mfc_id, str), ("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), ("Basic audio: ", edid.get_audio, _format_bool),
]: ]:
print(key, fmt(get()), file=sys.stderr) # type: ignore 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))