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#include "pvrusb2-audio.h"
9#include "pvrusb2-hdw-internal.h"
10#include "pvrusb2-debug.h"
11#include <linux/videodev2.h>
12#include <media/drv-intf/msp3400.h>
13#include <media/v4l2-common.h>
14
15
16struct routing_scheme {
17 const int *def;
18 unsigned int cnt;
19};
20
21static const int routing_scheme0[] = {
22 [PVR2_CVAL_INPUT_TV] = MSP_INPUT_DEFAULT,
23 [PVR2_CVAL_INPUT_RADIO] = MSP_INPUT(MSP_IN_SCART2,
24 MSP_IN_TUNER1,
25 MSP_DSP_IN_SCART,
26 MSP_DSP_IN_SCART),
27 [PVR2_CVAL_INPUT_COMPOSITE] = MSP_INPUT(MSP_IN_SCART1,
28 MSP_IN_TUNER1,
29 MSP_DSP_IN_SCART,
30 MSP_DSP_IN_SCART),
31 [PVR2_CVAL_INPUT_SVIDEO] = MSP_INPUT(MSP_IN_SCART1,
32 MSP_IN_TUNER1,
33 MSP_DSP_IN_SCART,
34 MSP_DSP_IN_SCART),
35};
36
37static const struct routing_scheme routing_def0 = {
38 .def = routing_scheme0,
39 .cnt = ARRAY_SIZE(routing_scheme0),
40};
41
42static const struct routing_scheme *routing_schemes[] = {
43 [PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0,
44};
45
46void pvr2_msp3400_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
47{
48 if (hdw->input_dirty || hdw->force_dirty) {
49 const struct routing_scheme *sp;
50 unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
51 u32 input;
52
53 pvr2_trace(PVR2_TRACE_CHIPS, "subdev msp3400 v4l2 set_stereo");
54 sp = (sid < ARRAY_SIZE(routing_schemes)) ?
55 routing_schemes[sid] : NULL;
56
57 if ((sp != NULL) &&
58 (hdw->input_val >= 0) &&
59 (hdw->input_val < sp->cnt)) {
60 input = sp->def[hdw->input_val];
61 } else {
62 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
63 "*** WARNING *** subdev msp3400 set_input: Invalid routing scheme (%u) and/or input (%d)",
64 sid, hdw->input_val);
65 return;
66 }
67 sd->ops->audio->s_routing(sd, input,
68 MSP_OUTPUT(MSP_SC_IN_DSP_SCART1), 0);
69 }
70}
71

source code of linux/drivers/media/usb/pvrusb2/pvrusb2-audio.c