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Importing sys/dev/videomode

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NetBSD provides an in-kernel EDID parser, validator, and printer
along with other useful functions. This code will be re-used by
the Minix fb driver as it is a complete and well tested
implementation.

Change-Id: I46fe3005d9957cd90d4972030ddcce7bc3bd7924
This commit is contained in:
Thomas Cort
2013-07-29 12:21:48 -04:00
committed by Gerrit Code Review
parent 6405d78182
commit bdf33c702a
19 changed files with 3089 additions and 0 deletions
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sys/dev/videomode/videomode.h Normal file
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/* $NetBSD: videomode.h,v 1.3 2011/04/09 18:22:31 jdc Exp $ */
/*
* Copyright (c) 2001, 2002 Bang Jun-Young
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _DEV_VIDEOMODE_H
#define _DEV_VIDEOMODE_H
struct videomode {
int dot_clock; /* Dot clock frequency in kHz. */
int hdisplay;
int hsync_start;
int hsync_end;
int htotal;
int vdisplay;
int vsync_start;
int vsync_end;
int vtotal;
int flags; /* Video mode flags; see below. */
const char *name;
};
/*
* Video mode flags.
*/
#define VID_PHSYNC 0x0001
#define VID_NHSYNC 0x0002
#define VID_PVSYNC 0x0004
#define VID_NVSYNC 0x0008
#define VID_INTERLACE 0x0010
#define VID_DBLSCAN 0x0020
#define VID_CSYNC 0x0040
#define VID_PCSYNC 0x0080
#define VID_NCSYNC 0x0100
#define VID_HSKEW 0x0200
#define VID_BCAST 0x0400
#define VID_PIXMUX 0x1000
#define VID_DBLCLK 0x2000
#define VID_CLKDIV2 0x4000
extern const struct videomode videomode_list[];
extern const int videomode_count;
const struct videomode *pick_mode_by_dotclock(int, int, int);
const struct videomode *pick_mode_by_ref(int, int, int);
void sort_modes(struct videomode *, struct videomode **, int);
#endif /* _DEV_VIDEOMODE_H */