[go: nahoru, domu]
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/*
23
24   This source file is specifically designed to interface with the
25   v4l-dvb cs53l32a module.
26
27*/
28
29#include "pvrusb2-cs53l32a.h"
30
31
32#include "pvrusb2-hdw-internal.h"
33#include "pvrusb2-debug.h"
34#include <linux/videodev2.h>
35#include <media/v4l2-common.h>
36#include <linux/errno.h>
37
38struct routing_scheme {
39	const int *def;
40	unsigned int cnt;
41};
42
43
44static const int routing_scheme1[] = {
45	[PVR2_CVAL_INPUT_TV] = 2,  /* 1 or 2 seems to work here */
46	[PVR2_CVAL_INPUT_RADIO] = 2,
47	[PVR2_CVAL_INPUT_COMPOSITE] = 0,
48	[PVR2_CVAL_INPUT_SVIDEO] =  0,
49};
50
51static const struct routing_scheme routing_def1 = {
52	.def = routing_scheme1,
53	.cnt = ARRAY_SIZE(routing_scheme1),
54};
55
56static const struct routing_scheme *routing_schemes[] = {
57	[PVR2_ROUTING_SCHEME_ONAIR] = &routing_def1,
58};
59
60
61void pvr2_cs53l32a_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
62{
63	if (hdw->input_dirty || hdw->force_dirty) {
64		const struct routing_scheme *sp;
65		unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
66		u32 input;
67		pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 set_input(%d)",
68			   hdw->input_val);
69		sp = (sid < ARRAY_SIZE(routing_schemes)) ?
70			routing_schemes[sid] : NULL;
71		if ((sp == NULL) ||
72		    (hdw->input_val < 0) ||
73		    (hdw->input_val >= sp->cnt)) {
74			pvr2_trace(PVR2_TRACE_ERROR_LEGS,
75				   "*** WARNING *** subdev v4l2 set_input:"
76				   " Invalid routing scheme (%u)"
77				   " and/or input (%d)",
78				   sid, hdw->input_val);
79			return;
80		}
81		input = sp->def[hdw->input_val];
82		sd->ops->audio->s_routing(sd, input, 0, 0);
83	}
84}
85
86
87/*
88  Stuff for Emacs to see, in order to encourage consistent editing style:
89  *** Local Variables: ***
90  *** mode: c ***
91  *** fill-column: 70 ***
92  *** tab-width: 8 ***
93  *** c-basic-offset: 8 ***
94  *** End: ***
95  */
96