drivers/media/usb/pvrusb2/pvrusb2-cx2584x-v4l.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 /*
   9
  10    This source file is specifically designed to interface with the
  11    cx2584x, in kernels 2.6.16 or newer.
  12
  13 */
  14
  15 #include "pvrusb2-cx2584x-v4l.h"
  16
  17
  18 #include "pvrusb2-hdw-internal.h"
  19 #include "pvrusb2-debug.h"
  20 #include <media/drv-intf/cx25840.h>
  21 #include <linux/videodev2.h>
  22 #include <media/v4l2-common.h>
  23 #include <linux/errno.h>
  24
  25
  26 struct routing_scheme_item {
  27         int vid;
  28         int aud;
  29 };
  30
  31 struct routing_scheme {
  32         const struct routing_scheme_item *def;
  33         unsigned int cnt;
  34 };
  35
  36 static const struct routing_scheme_item routing_scheme0[] = {
  37         [PVR2_CVAL_INPUT_TV] = {
  38                 .vid = CX25840_COMPOSITE7,
  39                 .aud = CX25840_AUDIO8,
  40         },
  41         [PVR2_CVAL_INPUT_RADIO] = { /* Treat the same as composite */
  42                 .vid = CX25840_COMPOSITE3,
  43                 .aud = CX25840_AUDIO_SERIAL,
  44         },
  45         [PVR2_CVAL_INPUT_COMPOSITE] = {
  46                 .vid = CX25840_COMPOSITE3,
  47                 .aud = CX25840_AUDIO_SERIAL,
  48         },
  49         [PVR2_CVAL_INPUT_SVIDEO] = {
  50                 .vid = CX25840_SVIDEO1,
  51                 .aud = CX25840_AUDIO_SERIAL,
  52         },
  53 };
  54
  55 static const struct routing_scheme routing_def0 = {
  56         .def = routing_scheme0,
  57         .cnt = ARRAY_SIZE(routing_scheme0),
  58 };
  59
  60 /* Specific to gotview device */
  61 static const struct routing_scheme_item routing_schemegv[] = {
  62         [PVR2_CVAL_INPUT_TV] = {
  63                 .vid = CX25840_COMPOSITE2,
  64                 .aud = CX25840_AUDIO5,
  65         },
  66         [PVR2_CVAL_INPUT_RADIO] = {
  67                 /* line-in is used for radio and composite.  A GPIO is
  68                    used to switch between the two choices. */
  69                 .vid = CX25840_COMPOSITE1,
  70                 .aud = CX25840_AUDIO_SERIAL,
  71         },
  72         [PVR2_CVAL_INPUT_COMPOSITE] = {
  73                 .vid = CX25840_COMPOSITE1,
  74                 .aud = CX25840_AUDIO_SERIAL,
  75         },
  76         [PVR2_CVAL_INPUT_SVIDEO] = {
  77                 .vid = (CX25840_SVIDEO_LUMA3|CX25840_SVIDEO_CHROMA4),
  78                 .aud = CX25840_AUDIO_SERIAL,
  79         },
  80 };
  81
  82 static const struct routing_scheme routing_defgv = {
  83         .def = routing_schemegv,
  84         .cnt = ARRAY_SIZE(routing_schemegv),
  85 };
  86
  87 /* Specific to grabster av400 device */
  88 static const struct routing_scheme_item routing_schemeav400[] = {
  89         [PVR2_CVAL_INPUT_COMPOSITE] = {
  90                 .vid = CX25840_COMPOSITE1,
  91                 .aud = CX25840_AUDIO_SERIAL,
  92         },
  93         [PVR2_CVAL_INPUT_SVIDEO] = {
  94                 .vid = (CX25840_SVIDEO_LUMA2|CX25840_SVIDEO_CHROMA4),
  95                 .aud = CX25840_AUDIO_SERIAL,
  96         },
  97 };
  98
  99 static const struct routing_scheme routing_defav400 = {
 100         .def = routing_schemeav400,
 101         .cnt = ARRAY_SIZE(routing_schemeav400),
 102 };
 103
 104 static const struct routing_scheme_item routing_scheme160xxx[] = {
 105         [PVR2_CVAL_INPUT_TV] = {
 106                 .vid = CX25840_COMPOSITE7,
 107                 .aud = CX25840_AUDIO8,
 108         },
 109         [PVR2_CVAL_INPUT_RADIO] = {
 110                 .vid = CX25840_COMPOSITE4,
 111                 .aud = CX25840_AUDIO6,
 112         },
 113         [PVR2_CVAL_INPUT_COMPOSITE] = {
 114                 .vid = CX25840_COMPOSITE3,
 115                 .aud = CX25840_AUDIO_SERIAL,
 116         },
 117         [PVR2_CVAL_INPUT_SVIDEO] = {
 118                 .vid = CX25840_SVIDEO1,
 119                 .aud = CX25840_AUDIO_SERIAL,
 120         },
 121 };
 122
 123 static const struct routing_scheme routing_def160xxx = {
 124         .def = routing_scheme160xxx,
 125         .cnt = ARRAY_SIZE(routing_scheme160xxx),
 126 };
 127
 128 static const struct routing_scheme *routing_schemes[] = {
 129         [PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0,
 130         [PVR2_ROUTING_SCHEME_GOTVIEW] = &routing_defgv,
 131         [PVR2_ROUTING_SCHEME_AV400] = &routing_defav400,
 132         [PVR2_ROUTING_SCHEME_HAUP160XXX] = &routing_def160xxx,
 133 };
 134
 135 void pvr2_cx25840_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
 136 {
 137         pvr2_trace(PVR2_TRACE_CHIPS, "subdev cx2584x update...");
 138         if (hdw->input_dirty || hdw->force_dirty) {
 139                 enum cx25840_video_input vid_input;
 140                 enum cx25840_audio_input aud_input;
 141                 const struct routing_scheme *sp;
 142                 unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
 143
 144                 sp = (sid < ARRAY_SIZE(routing_schemes)) ?
 145                         routing_schemes[sid] : NULL;
 146                 if ((sp == NULL) ||
 147                     (hdw->input_val < 0) ||
 148                     (hdw->input_val >= sp->cnt)) {
 149                         pvr2_trace(PVR2_TRACE_ERROR_LEGS,
 150                                    "*** WARNING *** subdev cx2584x set_input: Invalid routing scheme (%u) and/or input (%d)",
 151                                    sid, hdw->input_val);
 152                         return;
 153                 }
 154                 vid_input = sp->def[hdw->input_val].vid;
 155                 aud_input = sp->def[hdw->input_val].aud;
 156                 pvr2_trace(PVR2_TRACE_CHIPS,
 157                            "subdev cx2584x set_input vid=0x%x aud=0x%x",
 158                            vid_input, aud_input);
 159                 sd->ops->video->s_routing(sd, (u32)vid_input, 0, 0);
 160                 sd->ops->audio->s_routing(sd, (u32)aud_input, 0, 0);
 161         }
 162 }