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 v4l-dvb cs53l32a module.
12
13 */
14
15 #include "pvrusb2-cs53l32a.h"
16
17
18 #include "pvrusb2-hdw-internal.h"
19 #include "pvrusb2-debug.h"
20 #include <linux/videodev2.h>
21 #include <media/v4l2-common.h>
22 #include <linux/errno.h>
23
24 struct routing_scheme {
25 const int *def;
26 unsigned int cnt;
27 };
28
29
30 static const int routing_scheme1[] = {
31 [PVR2_CVAL_INPUT_TV] = 2, /* 1 or 2 seems to work here */
32 [PVR2_CVAL_INPUT_RADIO] = 2,
33 [PVR2_CVAL_INPUT_COMPOSITE] = 0,
34 [PVR2_CVAL_INPUT_SVIDEO] = 0,
35 };
36
37 static const struct routing_scheme routing_def1 = {
38 .def = routing_scheme1,
39 .cnt = ARRAY_SIZE(routing_scheme1),
40 };
41
42 static const struct routing_scheme *routing_schemes[] = {
43 [PVR2_ROUTING_SCHEME_ONAIR] = &routing_def1,
44 };
45
46
pvr2_cs53l32a_subdev_update(struct pvr2_hdw * hdw,struct v4l2_subdev * sd)47 void pvr2_cs53l32a_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
48 {
49 if (hdw->input_dirty || hdw->force_dirty) {
50 const struct routing_scheme *sp;
51 unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
52 u32 input;
53 pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 set_input(%d)",
54 hdw->input_val);
55 sp = (sid < ARRAY_SIZE(routing_schemes)) ?
56 routing_schemes[sid] : NULL;
57 if ((sp == NULL) ||
58 (hdw->input_val < 0) ||
59 (hdw->input_val >= sp->cnt)) {
60 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
61 "*** WARNING *** subdev v4l2 set_input: Invalid routing scheme (%u) and/or input (%d)",
62 sid, hdw->input_val);
63 return;
64 }
65 input = sp->def[hdw->input_val];
66 sd->ops->audio->s_routing(sd, input, 0, 0);
67 }
68 }
69