LXR linux/include/video/videomode.h

   1/*
   2 * Copyright 2012 Steffen Trumtrar <s.trumtrar@pengutronix.de>
   3 *
   4 * generic videomode description
   5 *
   6 * This file is released under the GPLv2
   7 */
   8
   9#ifndef __LINUX_VIDEOMODE_H
  10#define __LINUX_VIDEOMODE_H
  11
  12#include <linux/types.h>
  13#include <video/display_timing.h>
  14
  15/*
  16 * Subsystem independent description of a videomode.
  17 * Can be generated from struct display_timing.
  18 */
  19struct videomode {
  20        unsigned long pixelclock;       /* pixelclock in Hz */
  21
  22        u32 hactive;
  23        u32 hfront_porch;
  24        u32 hback_porch;
  25        u32 hsync_len;
  26
  27        u32 vactive;
  28        u32 vfront_porch;
  29        u32 vback_porch;
  30        u32 vsync_len;
  31
  32        enum display_flags flags; /* display flags */
  33};
  34
  35/**
  36 * videomode_from_timing - convert display timing to videomode
  37 * @dt: display_timing structure
  38 * @vm: return value
  39 *
  40 * DESCRIPTION:
  41 * This function converts a struct display_timing to a struct videomode.
  42 */
  43void videomode_from_timing(const struct display_timing *dt,
  44                          struct videomode *vm);
  45
  46/**
  47 * videomode_from_timings - convert one display timings entry to videomode
  48 * @disp: structure with all possible timing entries
  49 * @vm: return value
  50 * @index: index into the list of display timings in devicetree
  51 *
  52 * DESCRIPTION:
  53 * This function converts one struct display_timing entry to a struct videomode.
  54 */
  55int videomode_from_timings(const struct display_timings *disp,
  56                          struct videomode *vm, unsigned int index);
  57
  58#endif
  59