summaryrefslogtreecommitdiffstats
path: root/drivers/media/usb/pvrusb2/pvrusb2-cx2584x-v4l.c
blob: c514d0b9ffdc6262df50bff0bfe342aea2ead1b6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
/*
 *
 *
 *  Copyright (C) 2005 Mike Isely <isely@pobox.com>
 *  Copyright (C) 2004 Aurelien Alleaume <slts@free.fr>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

/*

   This source file is specifically designed to interface with the
   cx2584x, in kernels 2.6.16 or newer.

*/

#include "pvrusb2-cx2584x-v4l.h"
#include "pvrusb2-video-v4l.h"


#include "pvrusb2-hdw-internal.h"
#include "pvrusb2-debug.h"
#include <media/cx25840.h>
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <linux/errno.h>


struct routing_scheme_item {
	int vid;
	int aud;
};

struct routing_scheme {
	const struct routing_scheme_item *def;
	unsigned int cnt;
};

static const struct routing_scheme_item routing_scheme0[] = {
	[PVR2_CVAL_INPUT_TV] = {
		.vid = CX25840_COMPOSITE7,
		.aud = CX25840_AUDIO8,
	},
	[PVR2_CVAL_INPUT_RADIO] = { /* Treat the same as composite */
		.vid = CX25840_COMPOSITE3,
		.aud = CX25840_AUDIO_SERIAL,
	},
	[PVR2_CVAL_INPUT_COMPOSITE] = {
		.vid = CX25840_COMPOSITE3,
		.aud = CX25840_AUDIO_SERIAL,
	},
	[PVR2_CVAL_INPUT_SVIDEO] = {
		.vid = CX25840_SVIDEO1,
		.aud = CX25840_AUDIO_SERIAL,
	},
};

static const struct routing_scheme routing_def0 = {
	.def = routing_scheme0,
	.cnt = ARRAY_SIZE(routing_scheme0),
};

/* Specific to gotview device */
static const struct routing_scheme_item routing_schemegv[] = {
	[PVR2_CVAL_INPUT_TV] = {
		.vid = CX25840_COMPOSITE2,
		.aud = CX25840_AUDIO5,
	},
	[PVR2_CVAL_INPUT_RADIO] = {
		/* line-in is used for radio and composite.  A GPIO is
		   used to switch between the two choices. */
		.vid = CX25840_COMPOSITE1,
		.aud = CX25840_AUDIO_SERIAL,
	},
	[PVR2_CVAL_INPUT_COMPOSITE] = {
		.vid = CX25840_COMPOSITE1,
		.aud = CX25840_AUDIO_SERIAL,
	},
	[PVR2_CVAL_INPUT_SVIDEO] = {
		.vid = (CX25840_SVIDEO_LUMA3|CX25840_SVIDEO_CHROMA4),
		.aud = CX25840_AUDIO_SERIAL,
	},
};

static const struct routing_scheme routing_defgv = {
	.def = routing_schemegv,
	.cnt = ARRAY_SIZE(routing_schemegv),
};

/* Specific to grabster av400 device */
static const struct routing_scheme_item routing_schemeav400[] = {
	[PVR2_CVAL_INPUT_COMPOSITE] = {
		.vid = CX25840_COMPOSITE1,
		.aud = CX25840_AUDIO_SERIAL,
	},
	[PVR2_CVAL_INPUT_SVIDEO] = {
		.vid = (CX25840_SVIDEO_LUMA2|CX25840_SVIDEO_CHROMA4),
		.aud = CX25840_AUDIO_SERIAL,
	},
};

static const struct routing_scheme routing_defav400 = {
	.def = routing_schemeav400,
	.cnt = ARRAY_SIZE(routing_schemeav400),
};

static const struct routing_scheme *routing_schemes[] = {
	[PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0,
	[PVR2_ROUTING_SCHEME_GOTVIEW] = &routing_defgv,
	[PVR2_ROUTING_SCHEME_AV400] = &routing_defav400,
};

void pvr2_cx25840_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
{
	pvr2_trace(PVR2_TRACE_CHIPS, "subdev cx2584x update...");
	if (hdw->input_dirty || hdw->force_dirty) {
		enum cx25840_video_input vid_input;
		enum cx25840_audio_input aud_input;
		const struct routing_scheme *sp;
		unsigned int sid = hdw->hdw_desc->signal_routing_scheme;

		sp = (sid < ARRAY_SIZE(routing_schemes)) ?
			routing_schemes[sid] : NULL;
		if ((sp == NULL) ||
		    (hdw->input_val < 0) ||
		    (hdw->input_val >= sp->cnt)) {
			pvr2_trace(PVR2_TRACE_ERROR_LEGS,
				   "*** WARNING *** subdev cx2584x set_input:"
				   " Invalid routing scheme (%u)"
				   " and/or input (%d)",
				   sid, hdw->input_val);
			return;
		}
		vid_input = sp->def[hdw->input_val].vid;
		aud_input = sp->def[hdw->input_val].aud;
		pvr2_trace(PVR2_TRACE_CHIPS,
			   "subdev cx2584x set_input vid=0x%x aud=0x%x",
			   vid_input, aud_input);
		sd->ops->video->s_routing(sd, (u32)vid_input, 0, 0);
		sd->ops->audio->s_routing(sd, (u32)aud_input, 0, 0);
	}
}



/*
  Stuff for Emacs to see, in order to encourage consistent editing style:
  *** Local Variables: ***
  *** mode: c ***
  *** fill-column: 70 ***
  *** tab-width: 8 ***
  *** c-basic-offset: 8 ***
  *** End: ***
  */
OpenPOWER on IntegriCloud