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