kernel/2.6.29.6-aldebaran-rt/drivers/media/video/cx18/cx18-video.c

   1 /*
   2  *  cx18 video interface functions
   3  *
   4  *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19  *  02111-1307  USA
  20  */
  21
  22 #include "cx18-driver.h"
  23 #include "cx18-video.h"
  24 #include "cx18-av-core.h"
  25 #include "cx18-cards.h"
  26
  27 void cx18_video_set_io(struct cx18 *cx)
  28 {
  29         struct v4l2_routing route;
  30         int inp = cx->active_input;
  31         u32 type;
  32
  33         route.input = cx->card->video_inputs[inp].video_input;
  34         route.output = 0;
  35         cx18_av_cmd(cx, VIDIOC_INT_S_VIDEO_ROUTING, &route);
  36
  37         type = cx->card->video_inputs[inp].video_type;
  38
  39         if (type == CX18_CARD_INPUT_VID_TUNER)
  40                 route.input = 0;  /* Tuner */
  41         else if (type < CX18_CARD_INPUT_COMPOSITE1)
  42                 route.input = 2;  /* S-Video */
  43         else
  44                 route.input = 1;  /* Composite */
  45 }