LXR linux/drivers/media/usb/pvrusb2/pvrusb2-audio.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 *
   4 *  Copyright (C) 2005 Mike Isely <isely@pobox.com>
   5 *  Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
   6 */
   7
   8#include "pvrusb2-audio.h"
   9#include "pvrusb2-hdw-internal.h"
  10#include "pvrusb2-debug.h"
  11#include <linux/videodev2.h>
  12#include <media/drv-intf/msp3400.h>
  13#include <media/v4l2-common.h>
  14
  15
  16struct routing_scheme {
  17        const int *def;
  18        unsigned int cnt;
  19};
  20
  21static const int routing_scheme0[] = {
  22        [PVR2_CVAL_INPUT_TV]        = MSP_INPUT_DEFAULT,
  23        [PVR2_CVAL_INPUT_RADIO]     = MSP_INPUT(MSP_IN_SCART2,
  24                                                MSP_IN_TUNER1,
  25                                                MSP_DSP_IN_SCART,
  26                                                MSP_DSP_IN_SCART),
  27        [PVR2_CVAL_INPUT_COMPOSITE] = MSP_INPUT(MSP_IN_SCART1,
  28                                                MSP_IN_TUNER1,
  29                                                MSP_DSP_IN_SCART,
  30                                                MSP_DSP_IN_SCART),
  31        [PVR2_CVAL_INPUT_SVIDEO]    = MSP_INPUT(MSP_IN_SCART1,
  32                                                MSP_IN_TUNER1,
  33                                                MSP_DSP_IN_SCART,
  34                                                MSP_DSP_IN_SCART),
  35};
  36
  37static const struct routing_scheme routing_def0 = {
  38        .def = routing_scheme0,
  39        .cnt = ARRAY_SIZE(routing_scheme0),
  40};
  41
  42static const struct routing_scheme *routing_schemes[] = {
  43        [PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0,
  44};
  45
  46void pvr2_msp3400_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
  47{
  48        if (hdw->input_dirty || hdw->force_dirty) {
  49                const struct routing_scheme *sp;
  50                unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
  51                u32 input;
  52
  53                pvr2_trace(PVR2_TRACE_CHIPS, "subdev msp3400 v4l2 set_stereo");
  54                sp = (sid < ARRAY_SIZE(routing_schemes)) ?
  55                        routing_schemes[sid] : NULL;
  56
  57                if ((sp != NULL) &&
  58                    (hdw->input_val >= 0) &&
  59                    (hdw->input_val < sp->cnt)) {
  60                        input = sp->def[hdw->input_val];
  61                } else {
  62                        pvr2_trace(PVR2_TRACE_ERROR_LEGS,
  63                                   "*** WARNING *** subdev msp3400 set_input: Invalid routing scheme (%u) and/or input (%d)",
  64                                   sid, hdw->input_val);
  65                        return;
  66                }
  67                sd->ops->audio->s_routing(sd, input,
  68                        MSP_OUTPUT(MSP_SC_IN_DSP_SCART1), 0);
  69        }
  70}
  71