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c89d94ad5d
disable hdmi_audio_infoframe_pack_for_dp function for now as it depends on not imported yet drm sources and is not used by drm-kmod. Reviewed by: manu Sponsored by: Serenity CyberSecurity, LLC Differential Revision: https://reviews.freebsd.org/D46224
63 lines
2.3 KiB
C
63 lines
2.3 KiB
C
/*-
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* Copyright (c) 2022 Beckhoff Automation GmbH & Co. KG
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <video/cmdline.h>
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const char *
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video_get_options(const char *connector_name)
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{
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char tunable[64];
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const char *options;
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/*
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* A user may use loader tunables to set a specific mode for the
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* console. Tunables are read in the following order:
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* 1. kern.vt.fb.modes.$connector_name
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* 2. kern.vt.fb.default_mode
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*
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* Example of a mode specific to the LVDS connector:
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* kern.vt.fb.modes.LVDS="1024x768"
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*
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* Example of a mode applied to all connectors not having a
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* connector-specific mode:
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* kern.vt.fb.default_mode="640x480"
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*/
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snprintf(tunable, sizeof(tunable), "kern.vt.fb.modes.%s",
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connector_name);
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if (bootverbose) {
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printf("[drm] Connector %s: get mode from tunables:\n", connector_name);
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printf("[drm] - %s\n", tunable);
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printf("[drm] - kern.vt.fb.default_mode\n");
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}
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options = kern_getenv(tunable);
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if (options == NULL)
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options = kern_getenv("kern.vt.fb.default_mode");
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return (options);
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}
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