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 /*
19 
20    This source file is specifically designed to interface with the
21    wm8775.
22 
23 */
24 
25 #include "pvrusb2-wm8775.h"
26 
27 
28 #include "pvrusb2-hdw-internal.h"
29 #include "pvrusb2-debug.h"
30 #include <linux/videodev2.h>
31 #include <media/v4l2-common.h>
32 #include <linux/errno.h>
33 
34 void pvr2_wm8775_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
35 {
36 	if (hdw->input_dirty || hdw->force_dirty) {
37 		u32 input;
38 
39 		switch (hdw->input_val) {
40 		case PVR2_CVAL_INPUT_RADIO:
41 			input = 1;
42 			break;
43 		default:
44 			/* All other cases just use the second input */
45 			input = 2;
46 			break;
47 		}
48 		pvr2_trace(PVR2_TRACE_CHIPS, "subdev wm8775 set_input(val=%d route=0x%x)",
49 			   hdw->input_val, input);
50 
51 		sd->ops->audio->s_routing(sd, input, 0, 0);
52 	}
53 }
54