LXR linux/drivers/media/usb/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
  30struct routing_scheme {
  31        const int *def;
  32        unsigned int cnt;
  33};
  34
  35static 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
  51static const struct routing_scheme routing_def0 = {
  52        .def = routing_scheme0,
  53        .cnt = ARRAY_SIZE(routing_scheme0),
  54};
  55
  56static const struct routing_scheme *routing_schemes[] = {
  57        [PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0,
  58};
  59
  60void pvr2_msp3400_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
  61{
  62        if (hdw->input_dirty || hdw->force_dirty) {
  63                const struct routing_scheme *sp;
  64                unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
  65                u32 input;
  66
  67                pvr2_trace(PVR2_TRACE_CHIPS, "subdev msp3400 v4l2 set_stereo");
  68                sp = (sid < ARRAY_SIZE(routing_schemes)) ?
  69                        routing_schemes[sid] : NULL;
  70
  71                if ((sp != NULL) &&
  72                    (hdw->input_val >= 0) &&
  73                    (hdw->input_val < sp->cnt)) {
  74                        input = sp->def[hdw->input_val];
  75                } else {
  76                        pvr2_trace(PVR2_TRACE_ERROR_LEGS,
  77                                   "*** WARNING *** subdev msp3400 set_input:"
  78                                   " Invalid routing scheme (%u)"
  79                                   " and/or input (%d)",
  80                                   sid, hdw->input_val);
  81                        return;
  82                }
  83                sd->ops->audio->s_routing(sd, input,
  84                        MSP_OUTPUT(MSP_SC_IN_DSP_SCART1), 0);
  85        }
  86}
  87
  88/*
  89  Stuff for Emacs to see, in order to encourage consistent editing style:
  90  *** Local Variables: ***
  91  *** mode: c ***
  92  *** fill-column: 70 ***
  93  *** tab-width: 8 ***
  94  *** c-basic-offset: 8 ***
  95  *** End: ***
  96  */
  97