LXR linux/drivers/video/videomode.c

   1/*
   2 * generic display timing functions
   3 *
   4 * Copyright (c) 2012 Steffen Trumtrar <s.trumtrar@pengutronix.de>, Pengutronix
   5 *
   6 * This file is released under the GPLv2
   7 */
   8
   9#include <linux/errno.h>
  10#include <linux/export.h>
  11#include <video/display_timing.h>
  12#include <video/videomode.h>
  13
  14void videomode_from_timing(const struct display_timing *dt,
  15                          struct videomode *vm)
  16{
  17        vm->pixelclock = dt->pixelclock.typ;
  18        vm->hactive = dt->hactive.typ;
  19        vm->hfront_porch = dt->hfront_porch.typ;
  20        vm->hback_porch = dt->hback_porch.typ;
  21        vm->hsync_len = dt->hsync_len.typ;
  22
  23        vm->vactive = dt->vactive.typ;
  24        vm->vfront_porch = dt->vfront_porch.typ;
  25        vm->vback_porch = dt->vback_porch.typ;
  26        vm->vsync_len = dt->vsync_len.typ;
  27
  28        vm->flags = dt->flags;
  29}
  30EXPORT_SYMBOL_GPL(videomode_from_timing);
  31
  32int videomode_from_timings(const struct display_timings *disp,
  33                          struct videomode *vm, unsigned int index)
  34{
  35        struct display_timing *dt;
  36
  37        dt = display_timings_get(disp, index);
  38        if (!dt)
  39                return -EINVAL;
  40
  41        videomode_from_timing(dt, vm);
  42
  43        return 0;
  44}
  45EXPORT_SYMBOL_GPL(videomode_from_timings);
  46