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  */
17 
18 #include "pvrusb2-audio.h"
19 #include "pvrusb2-hdw-internal.h"
20 #include "pvrusb2-debug.h"
21 #include <linux/videodev2.h>
22 #include <media/drv-intf/msp3400.h>
23 #include <media/v4l2-common.h>
24 
25 
26 struct routing_scheme {
27 	const int *def;
28 	unsigned int cnt;
29 };
30 
31 static const int routing_scheme0[] = {
32 	[PVR2_CVAL_INPUT_TV]        = MSP_INPUT_DEFAULT,
33 	[PVR2_CVAL_INPUT_RADIO]     = MSP_INPUT(MSP_IN_SCART2,
34 						MSP_IN_TUNER1,
35 						MSP_DSP_IN_SCART,
36 						MSP_DSP_IN_SCART),
37 	[PVR2_CVAL_INPUT_COMPOSITE] = MSP_INPUT(MSP_IN_SCART1,
38 						MSP_IN_TUNER1,
39 						MSP_DSP_IN_SCART,
40 						MSP_DSP_IN_SCART),
41 	[PVR2_CVAL_INPUT_SVIDEO]    = MSP_INPUT(MSP_IN_SCART1,
42 						MSP_IN_TUNER1,
43 						MSP_DSP_IN_SCART,
44 						MSP_DSP_IN_SCART),
45 };
46 
47 static const struct routing_scheme routing_def0 = {
48 	.def = routing_scheme0,
49 	.cnt = ARRAY_SIZE(routing_scheme0),
50 };
51 
52 static const struct routing_scheme *routing_schemes[] = {
53 	[PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0,
54 };
55 
56 void pvr2_msp3400_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
57 {
58 	if (hdw->input_dirty || hdw->force_dirty) {
59 		const struct routing_scheme *sp;
60 		unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
61 		u32 input;
62 
63 		pvr2_trace(PVR2_TRACE_CHIPS, "subdev msp3400 v4l2 set_stereo");
64 		sp = (sid < ARRAY_SIZE(routing_schemes)) ?
65 			routing_schemes[sid] : NULL;
66 
67 		if ((sp != NULL) &&
68 		    (hdw->input_val >= 0) &&
69 		    (hdw->input_val < sp->cnt)) {
70 			input = sp->def[hdw->input_val];
71 		} else {
72 			pvr2_trace(PVR2_TRACE_ERROR_LEGS,
73 				   "*** WARNING *** subdev msp3400 set_input: Invalid routing scheme (%u) and/or input (%d)",
74 				   sid, hdw->input_val);
75 			return;
76 		}
77 		sd->ops->audio->s_routing(sd, input,
78 			MSP_OUTPUT(MSP_SC_IN_DSP_SCART1), 0);
79 	}
80 }
81