V4L/DVB (11380): v4l2-subdev: change s_routing prototype
[linux-2.6.git] / drivers / media / video / pvrusb2 / pvrusb2-cx2584x-v4l.c
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    cx2584x, in kernels 2.6.16 or newer.
26
27 */
28
29 #include "pvrusb2-cx2584x-v4l.h"
30 #include "pvrusb2-video-v4l.h"
31
32
33 #include "pvrusb2-hdw-internal.h"
34 #include "pvrusb2-debug.h"
35 #include <media/cx25840.h>
36 #include <linux/videodev2.h>
37 #include <media/v4l2-common.h>
38 #include <linux/errno.h>
39 #include <linux/slab.h>
40
41
42 struct routing_scheme_item {
43         int vid;
44         int aud;
45 };
46
47 struct routing_scheme {
48         const struct routing_scheme_item *def;
49         unsigned int cnt;
50 };
51
52 static const struct routing_scheme_item routing_scheme0[] = {
53         [PVR2_CVAL_INPUT_TV] = {
54                 .vid = CX25840_COMPOSITE7,
55                 .aud = CX25840_AUDIO8,
56         },
57         [PVR2_CVAL_INPUT_RADIO] = { /* Treat the same as composite */
58                 .vid = CX25840_COMPOSITE3,
59                 .aud = CX25840_AUDIO_SERIAL,
60         },
61         [PVR2_CVAL_INPUT_COMPOSITE] = {
62                 .vid = CX25840_COMPOSITE3,
63                 .aud = CX25840_AUDIO_SERIAL,
64         },
65         [PVR2_CVAL_INPUT_SVIDEO] = {
66                 .vid = CX25840_SVIDEO1,
67                 .aud = CX25840_AUDIO_SERIAL,
68         },
69 };
70
71 /* Specific to gotview device */
72 static const struct routing_scheme_item routing_schemegv[] = {
73         [PVR2_CVAL_INPUT_TV] = {
74                 .vid = CX25840_COMPOSITE2,
75                 .aud = CX25840_AUDIO5,
76         },
77         [PVR2_CVAL_INPUT_RADIO] = {
78                 /* line-in is used for radio and composite.  A GPIO is
79                    used to switch between the two choices. */
80                 .vid = CX25840_COMPOSITE1,
81                 .aud = CX25840_AUDIO_SERIAL,
82         },
83         [PVR2_CVAL_INPUT_COMPOSITE] = {
84                 .vid = CX25840_COMPOSITE1,
85                 .aud = CX25840_AUDIO_SERIAL,
86         },
87         [PVR2_CVAL_INPUT_SVIDEO] = {
88                 .vid = (CX25840_SVIDEO_LUMA3|CX25840_SVIDEO_CHROMA4),
89                 .aud = CX25840_AUDIO_SERIAL,
90         },
91 };
92
93 static const struct routing_scheme routing_schemes[] = {
94         [PVR2_ROUTING_SCHEME_HAUPPAUGE] = {
95                 .def = routing_scheme0,
96                 .cnt = ARRAY_SIZE(routing_scheme0),
97         },
98         [PVR2_ROUTING_SCHEME_GOTVIEW] = {
99                 .def = routing_schemegv,
100                 .cnt = ARRAY_SIZE(routing_schemegv),
101         },
102 };
103
104 void pvr2_cx25840_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
105 {
106         pvr2_trace(PVR2_TRACE_CHIPS, "subdev cx2584x update...");
107         if (hdw->input_dirty || hdw->force_dirty) {
108                 enum cx25840_video_input vid_input;
109                 enum cx25840_audio_input aud_input;
110                 const struct routing_scheme *sp;
111                 unsigned int sid = hdw->hdw_desc->signal_routing_scheme;
112
113                 if ((sid < ARRAY_SIZE(routing_schemes)) &&
114                     ((sp = routing_schemes + sid) != NULL) &&
115                     (hdw->input_val >= 0) &&
116                     (hdw->input_val < sp->cnt)) {
117                         vid_input = sp->def[hdw->input_val].vid;
118                         aud_input = sp->def[hdw->input_val].aud;
119                 } else {
120                         pvr2_trace(PVR2_TRACE_ERROR_LEGS,
121                                    "*** WARNING *** subdev cx2584x set_input:"
122                                    " Invalid routing scheme (%u)"
123                                    " and/or input (%d)",
124                                    sid, hdw->input_val);
125                         return;
126                 }
127
128                 pvr2_trace(PVR2_TRACE_CHIPS,
129                            "subdev cx2584x set_input vid=0x%x aud=0x%x",
130                            vid_input, aud_input);
131                 sd->ops->video->s_routing(sd, (u32)vid_input, 0, 0);
132                 sd->ops->audio->s_routing(sd, (u32)aud_input, 0, 0);
133         }
134 }
135
136
137
138 /*
139   Stuff for Emacs to see, in order to encourage consistent editing style:
140   *** Local Variables: ***
141   *** mode: c ***
142   *** fill-column: 70 ***
143   *** tab-width: 8 ***
144   *** c-basic-offset: 8 ***
145   *** End: ***
146   */