1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Copyright (C) 2005 Mike Isely <isely@pobox.com>
5*4882a593Smuzhiyun * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun /*
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun This source file is specifically designed to interface with the
11*4882a593Smuzhiyun saa711x support that is available in the v4l available starting
12*4882a593Smuzhiyun with linux 2.6.15.
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun */
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun #include "pvrusb2-video-v4l.h"
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun #include "pvrusb2-hdw-internal.h"
21*4882a593Smuzhiyun #include "pvrusb2-debug.h"
22*4882a593Smuzhiyun #include <linux/videodev2.h>
23*4882a593Smuzhiyun #include <media/v4l2-common.h>
24*4882a593Smuzhiyun #include <media/i2c/saa7115.h>
25*4882a593Smuzhiyun #include <linux/errno.h>
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun struct routing_scheme {
28*4882a593Smuzhiyun const int *def;
29*4882a593Smuzhiyun unsigned int cnt;
30*4882a593Smuzhiyun };
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun static const int routing_scheme0[] = {
34*4882a593Smuzhiyun [PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4,
35*4882a593Smuzhiyun /* In radio mode, we mute the video, but point at one
36*4882a593Smuzhiyun spot just to stay consistent */
37*4882a593Smuzhiyun [PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5,
38*4882a593Smuzhiyun [PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE5,
39*4882a593Smuzhiyun [PVR2_CVAL_INPUT_SVIDEO] = SAA7115_SVIDEO2,
40*4882a593Smuzhiyun };
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun static const struct routing_scheme routing_def0 = {
43*4882a593Smuzhiyun .def = routing_scheme0,
44*4882a593Smuzhiyun .cnt = ARRAY_SIZE(routing_scheme0),
45*4882a593Smuzhiyun };
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun static const int routing_scheme1[] = {
48*4882a593Smuzhiyun [PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4,
49*4882a593Smuzhiyun [PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5,
50*4882a593Smuzhiyun [PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE3,
51*4882a593Smuzhiyun [PVR2_CVAL_INPUT_SVIDEO] = SAA7115_SVIDEO2, /* or SVIDEO0, it seems */
52*4882a593Smuzhiyun };
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun static const struct routing_scheme routing_def1 = {
55*4882a593Smuzhiyun .def = routing_scheme1,
56*4882a593Smuzhiyun .cnt = ARRAY_SIZE(routing_scheme1),
57*4882a593Smuzhiyun };
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun static const struct routing_scheme *routing_schemes[] = {
60*4882a593Smuzhiyun [PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0,
61*4882a593Smuzhiyun [PVR2_ROUTING_SCHEME_ONAIR] = &routing_def1,
62*4882a593Smuzhiyun };
63*4882a593Smuzhiyun
pvr2_saa7115_subdev_update(struct pvr2_hdw * hdw,struct v4l2_subdev * sd)64*4882a593Smuzhiyun void pvr2_saa7115_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
65*4882a593Smuzhiyun {
66*4882a593Smuzhiyun if (hdw->input_dirty || hdw->force_dirty) {
67*4882a593Smuzhiyun const struct routing_scheme *sp;
68*4882a593Smuzhiyun unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
69*4882a593Smuzhiyun u32 input;
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 set_input(%d)",
72*4882a593Smuzhiyun hdw->input_val);
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun sp = (sid < ARRAY_SIZE(routing_schemes)) ?
75*4882a593Smuzhiyun routing_schemes[sid] : NULL;
76*4882a593Smuzhiyun if ((sp == NULL) ||
77*4882a593Smuzhiyun (hdw->input_val < 0) ||
78*4882a593Smuzhiyun (hdw->input_val >= sp->cnt)) {
79*4882a593Smuzhiyun pvr2_trace(PVR2_TRACE_ERROR_LEGS,
80*4882a593Smuzhiyun "*** WARNING *** subdev v4l2 set_input: Invalid routing scheme (%u) and/or input (%d)",
81*4882a593Smuzhiyun sid, hdw->input_val);
82*4882a593Smuzhiyun return;
83*4882a593Smuzhiyun }
84*4882a593Smuzhiyun input = sp->def[hdw->input_val];
85*4882a593Smuzhiyun sd->ops->video->s_routing(sd, input, 0, 0);
86*4882a593Smuzhiyun }
87*4882a593Smuzhiyun }
88