Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
[deliverable/linux.git] / drivers / media / usb / pvrusb2 / pvrusb2-video-v4l.c
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1/*
2 *
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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"
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31
32
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34#include "pvrusb2-hdw-internal.h"
35#include "pvrusb2-debug.h"
36#include <linux/videodev2.h>
37#include <media/v4l2-common.h>
b5dcee22 38#include <media/i2c/saa7115.h>
d855497e 39#include <linux/errno.h>
d855497e 40
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41struct routing_scheme {
42 const int *def;
43 unsigned int cnt;
44};
45
46
47static 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
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56static const struct routing_scheme routing_def0 = {
57 .def = routing_scheme0,
58 .cnt = ARRAY_SIZE(routing_scheme0),
59};
60
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61static 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
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68static const struct routing_scheme routing_def1 = {
69 .def = routing_scheme1,
70 .cnt = ARRAY_SIZE(routing_scheme1),
71};
72
73static const struct routing_scheme *routing_schemes[] = {
74 [PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0,
75 [PVR2_ROUTING_SCHEME_ONAIR] = &routing_def1,
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76};
77
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78void pvr2_saa7115_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
79{
27764726 80 if (hdw->input_dirty || hdw->force_dirty) {
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81 const struct routing_scheme *sp;
82 unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
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83 u32 input;
84
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85 pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 set_input(%d)",
86 hdw->input_val);
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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)) {
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93 pvr2_trace(PVR2_TRACE_ERROR_LEGS,
94 "*** WARNING *** subdev v4l2 set_input:"
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95 " Invalid routing scheme (%u)"
96 " and/or input (%d)",
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97 sid, hdw->input_val);
98 return;
99 }
90135c96 100 input = sp->def[hdw->input_val];
5325b427 101 sd->ops->video->s_routing(sd, input, 0, 0);
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102 }
103}
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