summaryrefslogtreecommitdiff
path: root/drivers/media/dvb/dvb-core/dmxdev.h
blob: 02ebe28f830d811b9ea7079ad450cc626a6b3863 (plain) (blame)
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
/*
 * dmxdev.h
 *
 * Copyright (C) 2000 Ralph Metzler & Marcus Metzler
 *                    for convergence integrated media GmbH
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1
 * of the License, or (at your option) any later version.
 *
 * 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 Lesser 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.
 *
 */

#ifndef _DMXDEV_H_
#define _DMXDEV_H_

#include <linux/types.h>
#include <linux/spinlock.h>
#include <linux/kernel.h>
#include <linux/timer.h>
#include <linux/wait.h>
#include <linux/fs.h>
#include <linux/string.h>
#include <linux/mutex.h>
#include <linux/slab.h>

#include <linux/dvb/dmx.h>

#include "dvbdev.h"
#include "demux.h"
#include "dvb_ringbuffer.h"

enum dmxdev_type {
	DMXDEV_TYPE_NONE,
	DMXDEV_TYPE_SEC,
	DMXDEV_TYPE_PES,
};

enum dmxdev_state {
	DMXDEV_STATE_FREE,
	DMXDEV_STATE_ALLOCATED,
	DMXDEV_STATE_SET,
	DMXDEV_STATE_GO,
	DMXDEV_STATE_DONE,
	DMXDEV_STATE_TIMEDOUT
};

struct dmxdev_feed {
	u16 pid;
	struct dmx_ts_feed *ts;
	struct list_head next;
};

struct dmxdev_filter {
	union {
		struct dmx_section_filter *sec;
	} filter;

	union {
		/* list of TS and PES feeds (struct dmxdev_feed) */
		struct list_head ts;
		struct dmx_section_feed *sec;
	} feed;

	union {
		struct dmx_sct_filter_params sec;
		struct dmx_pes_filter_params pes;
	} params;

	enum dmxdev_type type;
	enum dmxdev_state state;
	struct dmxdev *dev;
	struct dvb_ringbuffer buffer;

	struct mutex mutex;

	/* only for sections */
	struct timer_list timer;
	int todo;
	u8 secheader[3];
};


struct dmxdev {
	struct dvb_device *dvbdev;
	struct dvb_device *dvr_dvbdev;

	struct dmxdev_filter *filter;
	struct dmx_demux *demux;

	int filternum;
	int capabilities;

	unsigned int exit:1;
#define DMXDEV_CAP_DUPLEX 1
	struct dmx_frontend *dvr_orig_fe;

	struct dvb_ringbuffer dvr_buffer;
#define DVR_BUFFER_SIZE (10*188*1024)

	struct mutex mutex;
	spinlock_t lock;
};


int dvb_dmxdev_init(struct dmxdev *dmxdev, struct dvb_adapter *);
void dvb_dmxdev_release(struct dmxdev *dmxdev);

#endif /* _DMXDEV_H_ */