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    wm8775.
12 
13 */
14 
15 #include "pvrusb2-wm8775.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 
pvr2_wm8775_subdev_update(struct pvr2_hdw * hdw,struct v4l2_subdev * sd)24 void pvr2_wm8775_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
25 {
26 	if (hdw->input_dirty || hdw->force_dirty) {
27 		u32 input;
28 
29 		switch (hdw->input_val) {
30 		case PVR2_CVAL_INPUT_RADIO:
31 			input = 1;
32 			break;
33 		default:
34 			/* All other cases just use the second input */
35 			input = 2;
36 			break;
37 		}
38 		pvr2_trace(PVR2_TRACE_CHIPS, "subdev wm8775 set_input(val=%d route=0x%x)",
39 			   hdw->input_val, input);
40 
41 		sd->ops->audio->s_routing(sd, input, 0, 0);
42 	}
43 }
44