drivers/media/video/pvrusb2/pvrusb2-audio.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 #include "pvrusb2-audio.h"
  23 #include "pvrusb2-hdw-internal.h"
  24 #include "pvrusb2-debug.h"
  25 #include <linux/videodev2.h>
  26 #include <media/msp3400.h>
  27 #include <media/v4l2-common.h>
  28
  29
  30 struct routing_scheme {
  31         const int *def;
  32         unsigned int cnt;
  33 };
  34
  35 static const int routing_scheme0[] = {
  36         [PVR2_CVAL_INPUT_TV]        = MSP_INPUT_DEFAULT,
  37         [PVR2_CVAL_INPUT_RADIO]     = MSP_INPUT(MSP_IN_SCART2,
  38                                                 MSP_IN_TUNER1,
  39                                                 MSP_DSP_IN_SCART,
  40                                                 MSP_DSP_IN_SCART),
  41         [PVR2_CVAL_INPUT_COMPOSITE] = MSP_INPUT(MSP_IN_SCART1,
  42                                                 MSP_IN_TUNER1,
  43                                                 MSP_DSP_IN_SCART,
  44                                                 MSP_DSP_IN_SCART),
  45         [PVR2_CVAL_INPUT_SVIDEO]    = MSP_INPUT(MSP_IN_SCART1,
  46                                                 MSP_IN_TUNER1,
  47                                                 MSP_DSP_IN_SCART,
  48                                                 MSP_DSP_IN_SCART),
  49 };
  50
  51 static const struct routing_scheme routing_schemes[] = {
  52         [PVR2_ROUTING_SCHEME_HAUPPAUGE] = {
  53                 .def = routing_scheme0,
  54                 .cnt = ARRAY_SIZE(routing_scheme0),
  55         },
  56 };
  57
  58 void pvr2_msp3400_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
  59 {
  60         if (hdw->input_dirty || hdw->force_dirty) {
  61                 const struct routing_scheme *sp;
  62                 unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
  63                 u32 input;
  64
  65                 pvr2_trace(PVR2_TRACE_CHIPS, "subdev msp3400 v4l2 set_stereo");
  66
  67                 if ((sid < ARRAY_SIZE(routing_schemes)) &&
  68                     ((sp = routing_schemes + sid) != NULL) &&
  69                     (hdw->input_val >= 0) &&
  70                     (hdw->input_val < sp->cnt)) {
  71                         input = sp->def[hdw->input_val];
  72                 } else {
  73                         pvr2_trace(PVR2_TRACE_ERROR_LEGS,
  74                                    "*** WARNING *** subdev msp3400 set_input:"
  75                                    " Invalid routing scheme (%u)"
  76                                    " and/or input (%d)",
  77                                    sid, hdw->input_val);
  78                         return;
  79                 }
  80                 sd->ops->audio->s_routing(sd, input,
  81                         MSP_OUTPUT(MSP_SC_IN_DSP_SCART1), 0);
  82         }
  83 }
  84
  85 /*
  86   Stuff for Emacs to see, in order to encourage consistent editing style:
  87   *** Local Variables: ***
  88   *** mode: c ***
  89   *** fill-column: 70 ***
  90   *** tab-width: 8 ***
  91   *** c-basic-offset: 8 ***
  92   *** End: ***
  93   */