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
24struct routing_scheme {
25	const int *def;
26	unsigned int cnt;
27};
28
29
30static 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
37static const struct routing_scheme routing_def1 = {
38	.def = routing_scheme1,
39	.cnt = ARRAY_SIZE(routing_scheme1),
40};
41
42static const struct routing_scheme *routing_schemes[] = {
43	[PVR2_ROUTING_SCHEME_ONAIR] = &routing_def1,
44};
45
46
47void 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