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pvrusb2-cs53l32a.c
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1 /*
2  *
3  *
4  * Copyright (C) 2005 Mike Isely <[email protected]>
5  * Copyright (C) 2004 Aurelien Alleaume <[email protected]>
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  v4l-dvb cs53l32a module.
26 
27 */
28 
29 #include "pvrusb2-cs53l32a.h"
30 
31 
32 #include "pvrusb2-hdw-internal.h"
33 #include "pvrusb2-debug.h"
34 #include <linux/videodev2.h>
35 #include <media/v4l2-common.h>
36 #include <linux/errno.h>
37 
38 struct routing_scheme {
39  const int *def;
40  unsigned int cnt;
41 };
42 
43 
44 static const int routing_scheme1[] = {
45  [PVR2_CVAL_INPUT_TV] = 2, /* 1 or 2 seems to work here */
49 };
50 
51 static const struct routing_scheme routing_def1 = {
52  .def = routing_scheme1,
53  .cnt = ARRAY_SIZE(routing_scheme1),
54 };
55 
56 static const struct routing_scheme *routing_schemes[] = {
57  [PVR2_ROUTING_SCHEME_ONAIR] = &routing_def1,
58 };
59 
60 
62 {
63  if (hdw->input_dirty || hdw->force_dirty) {
64  const struct routing_scheme *sp;
65  unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
66  u32 input;
67  pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 set_input(%d)",
68  hdw->input_val);
69  sp = (sid < ARRAY_SIZE(routing_schemes)) ?
70  routing_schemes[sid] : NULL;
71  if ((sp == NULL) ||
72  (hdw->input_val < 0) ||
73  (hdw->input_val >= sp->cnt)) {
75  "*** WARNING *** subdev v4l2 set_input:"
76  " Invalid routing scheme (%u)"
77  " and/or input (%d)",
78  sid, hdw->input_val);
79  return;
80  }
81  input = sp->def[hdw->input_val];
82  sd->ops->audio->s_routing(sd, input, 0, 0);
83  }
84 }
85 
86 
87 /*
88  Stuff for Emacs to see, in order to encourage consistent editing style:
89  *** Local Variables: ***
90  *** mode: c ***
91  *** fill-column: 70 ***
92  *** tab-width: 8 ***
93  *** c-basic-offset: 8 ***
94  *** End: ***
95  */