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 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 */
21
22 /*
23
24 This source file is specifically designed to interface with the
25 saa711x support that is available in the v4l available starting
26 with linux 2.6.15.
27
28 */
29
30 #include "pvrusb2-video-v4l.h"
31
32
33
34 #include "pvrusb2-hdw-internal.h"
35 #include "pvrusb2-debug.h"
36 #include <linux/videodev2.h>
37 #include <media/v4l2-common.h>
38 #include <media/saa7115.h>
39 #include <linux/errno.h>
40
41 struct routing_scheme {
42 const int *def;
43 unsigned int cnt;
44 };
45
46
47 static const int routing_scheme0[] = {
48 [PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4,
49 /* In radio mode, we mute the video, but point at one
50 spot just to stay consistent */
51 [PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5,
52 [PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE5,
53 [PVR2_CVAL_INPUT_SVIDEO] = SAA7115_SVIDEO2,
54 };
55
56 static const struct routing_scheme routing_def0 = {
57 .def = routing_scheme0,
58 .cnt = ARRAY_SIZE(routing_scheme0),
59 };
60
61 static const int routing_scheme1[] = {
62 [PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4,
63 [PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5,
64 [PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE3,
65 [PVR2_CVAL_INPUT_SVIDEO] = SAA7115_SVIDEO2, /* or SVIDEO0, it seems */
66 };
67
68 static const struct routing_scheme routing_def1 = {
69 .def = routing_scheme1,
70 .cnt = ARRAY_SIZE(routing_scheme1),
71 };
72
73 static const struct routing_scheme *routing_schemes[] = {
74 [PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0,
75 [PVR2_ROUTING_SCHEME_ONAIR] = &routing_def1,
76 };
77
pvr2_saa7115_subdev_update(struct pvr2_hdw * hdw,struct v4l2_subdev * sd)78 void pvr2_saa7115_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
79 {
80 if (hdw->input_dirty || hdw->force_dirty) {
81 const struct routing_scheme *sp;
82 unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
83 u32 input;
84
85 pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 set_input(%d)",
86 hdw->input_val);
87
88 sp = (sid < ARRAY_SIZE(routing_schemes)) ?
89 routing_schemes[sid] : NULL;
90 if ((sp == NULL) ||
91 (hdw->input_val < 0) ||
92 (hdw->input_val >= sp->cnt)) {
93 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
94 "*** WARNING *** subdev v4l2 set_input:"
95 " Invalid routing scheme (%u)"
96 " and/or input (%d)",
97 sid, hdw->input_val);
98 return;
99 }
100 input = sp->def[hdw->input_val];
101 sd->ops->video->s_routing(sd, input, 0, 0);
102 }
103 }
104
105
106 /*
107 Stuff for Emacs to see, in order to encourage consistent editing style:
108 *** Local Variables: ***
109 *** mode: c ***
110 *** fill-column: 70 ***
111 *** tab-width: 8 ***
112 *** c-basic-offset: 8 ***
113 *** End: ***
114 */
115