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  */
  19 struct 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  */
  43 void 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  */
  55 int videomode_from_timings(const struct display_timings *disp,
  56                           struct videomode *vm, unsigned int index);
  57
  58 #endif