include/video/videomode.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright 2012 Steffen Trumtrar <s.trumtrar@pengutronix.de>
   4  *
   5  * generic videomode description
   6  */
   7
   8 #ifndef __LINUX_VIDEOMODE_H
   9 #define __LINUX_VIDEOMODE_H
  10
  11 #include <linux/types.h>
  12 #include <video/display_timing.h>
  13
  14 /*
  15  * Subsystem independent description of a videomode.
  16  * Can be generated from struct display_timing.
  17  */
  18 struct videomode {
  19         unsigned long pixelclock;       /* pixelclock in Hz */
  20
  21         u32 hactive;
  22         u32 hfront_porch;
  23         u32 hback_porch;
  24         u32 hsync_len;
  25
  26         u32 vactive;
  27         u32 vfront_porch;
  28         u32 vback_porch;
  29         u32 vsync_len;
  30
  31         enum display_flags flags; /* display flags */
  32 };
  33
  34 /**
  35  * videomode_from_timing - convert display timing to videomode
  36  * @dt: display_timing structure
  37  * @vm: return value
  38  *
  39  * DESCRIPTION:
  40  * This function converts a struct display_timing to a struct videomode.
  41  */
  42 void videomode_from_timing(const struct display_timing *dt,
  43                           struct videomode *vm);
  44
  45 /**
  46  * videomode_from_timings - convert one display timings entry to videomode
  47  * @disp: structure with all possible timing entries
  48  * @vm: return value
  49  * @index: index into the list of display timings in devicetree
  50  *
  51  * DESCRIPTION:
  52  * This function converts one struct display_timing entry to a struct videomode.
  53  */
  54 int videomode_from_timings(const struct display_timings *disp,
  55                           struct videomode *vm, unsigned int index);
  56
  57 #endif