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 #include "pvrusb2-audio.h"
23 #include "pvrusb2-hdw-internal.h"
24 #include "pvrusb2-debug.h"
25 #include <linux/videodev2.h>
26 #include <media/msp3400.h>
27 #include <media/v4l2-common.h>
28 
29 
30 struct routing_scheme {
31 	const int *def;
32 	unsigned int cnt;
33 };
34 
35 static const int routing_scheme0[] = {
36 	[PVR2_CVAL_INPUT_TV]        = MSP_INPUT_DEFAULT,
37 	[PVR2_CVAL_INPUT_RADIO]     = MSP_INPUT(MSP_IN_SCART2,
38 						MSP_IN_TUNER1,
39 						MSP_DSP_IN_SCART,
40 						MSP_DSP_IN_SCART),
41 	[PVR2_CVAL_INPUT_COMPOSITE] = MSP_INPUT(MSP_IN_SCART1,
42 						MSP_IN_TUNER1,
43 						MSP_DSP_IN_SCART,
44 						MSP_DSP_IN_SCART),
45 	[PVR2_CVAL_INPUT_SVIDEO]    = MSP_INPUT(MSP_IN_SCART1,
46 						MSP_IN_TUNER1,
47 						MSP_DSP_IN_SCART,
48 						MSP_DSP_IN_SCART),
49 };
50 
51 static const struct routing_scheme routing_def0 = {
52 	.def = routing_scheme0,
53 	.cnt = ARRAY_SIZE(routing_scheme0),
54 };
55 
56 static const struct routing_scheme *routing_schemes[] = {
57 	[PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0,
58 };
59 
60 void pvr2_msp3400_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
61 {
62 	if (hdw->input_dirty || hdw->force_dirty) {
63 		const struct routing_scheme *sp;
64 		unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
65 		u32 input;
66 
67 		pvr2_trace(PVR2_TRACE_CHIPS, "subdev msp3400 v4l2 set_stereo");
68 		sp = (sid < ARRAY_SIZE(routing_schemes)) ?
69 			routing_schemes[sid] : NULL;
70 
71 		if ((sp != NULL) &&
72 		    (hdw->input_val >= 0) &&
73 		    (hdw->input_val < sp->cnt)) {
74 			input = sp->def[hdw->input_val];
75 		} else {
76 			pvr2_trace(PVR2_TRACE_ERROR_LEGS,
77 				   "*** WARNING *** subdev msp3400 set_input:"
78 				   " Invalid routing scheme (%u)"
79 				   " and/or input (%d)",
80 				   sid, hdw->input_val);
81 			return;
82 		}
83 		sd->ops->audio->s_routing(sd, input,
84 			MSP_OUTPUT(MSP_SC_IN_DSP_SCART1), 0);
85 	}
86 }
87