LXR linux/drivers/media/video/pvrusb2/pvrusb2-wm8775.c

   1/*
   2 *
   3 *
   4 *  Copyright (C) 2005 Mike Isely <isely@pobox.com>
   5 *  Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
   6 *
   7 *  This program is free software; you can redistribute it and/or modify
   8 *  it under the terms of the GNU General Public License as published by
   9 *  the Free Software Foundation; either version 2 of the License
  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  02111-1307  USA
  19 *
  20 */
  21
  22/*
  23
  24   This source file is specifically designed to interface with the
  25   wm8775.
  26
  27*/
  28
  29#include "pvrusb2-wm8775.h"
  30
  31
  32#include "pvrusb2-hdw-internal.h"
  33#include "pvrusb2-debug.h"
  34#include <linux/videodev2.h>
  35#include <media/v4l2-common.h>
  36#include <linux/errno.h>
  37#include <linux/slab.h>
  38
  39void pvr2_wm8775_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
  40{
  41        if (hdw->input_dirty || hdw->force_dirty) {
  42                u32 input;
  43
  44                switch (hdw->input_val) {
  45                case PVR2_CVAL_INPUT_RADIO:
  46                        input = 1;
  47                        break;
  48                default:
  49                        /* All other cases just use the second input */
  50                        input = 2;
  51                        break;
  52                }
  53                pvr2_trace(PVR2_TRACE_CHIPS, "subdev wm8775"
  54                           " set_input(val=%d route=0x%x)",
  55                           hdw->input_val, input);
  56
  57                sd->ops->audio->s_routing(sd, input, 0, 0);
  58        }
  59}
  60
  61
  62
  63/*
  64  Stuff for Emacs to see, in order to encourage consistent editing style:
  65  *** Local Variables: ***
  66  *** mode: c ***
  67  *** fill-column: 70 ***
  68  *** tab-width: 8 ***
  69  *** c-basic-offset: 8 ***
  70  *** End: ***
  71  */
  72