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         unsigned int dmt_flags; /* VESA DMT flags */
  33         unsigned int data_flags; /* video data flags */
  34 };
  35
  36 /**
  37  * videomode_from_timing - convert display timing to videomode
  38  * @disp: structure with all possible timing entries
  39  * @vm: return value
  40  * @index: index into the list of display timings in devicetree
  41  *
  42  * DESCRIPTION:
  43  * This function converts a struct display_timing to a struct videomode.
  44  */
  45 int videomode_from_timing(const struct display_timings *disp,
  46                           struct videomode *vm, unsigned int index);
  47
  48 #endif