1/*
2 * dmxdev.h
3 *
4 * Copyright (C) 2000 Ralph Metzler & Marcus Metzler
5 *                    for convergence integrated media GmbH
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public License
9 * as published by the Free Software Foundation; either version 2.1
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
20 *
21 */
22
23#ifndef _DMXDEV_H_
24#define _DMXDEV_H_
25
26#include <linux/types.h>
27#include <linux/spinlock.h>
28#include <linux/kernel.h>
29#include <linux/time.h>
30#include <linux/timer.h>
31#include <linux/wait.h>
32#include <linux/fs.h>
33#include <linux/string.h>
34#include <linux/mutex.h>
35#include <linux/slab.h>
36
37#include <linux/dvb/dmx.h>
38
39#include "dvbdev.h"
40#include "demux.h"
41#include "dvb_ringbuffer.h"
42
43enum dmxdev_type {
44	DMXDEV_TYPE_NONE,
45	DMXDEV_TYPE_SEC,
46	DMXDEV_TYPE_PES,
47};
48
49enum dmxdev_state {
50	DMXDEV_STATE_FREE,
51	DMXDEV_STATE_ALLOCATED,
52	DMXDEV_STATE_SET,
53	DMXDEV_STATE_GO,
54	DMXDEV_STATE_DONE,
55	DMXDEV_STATE_TIMEDOUT
56};
57
58struct dmxdev_feed {
59	u16 pid;
60	struct dmx_ts_feed *ts;
61	struct list_head next;
62};
63
64struct dmxdev_filter {
65	union {
66		struct dmx_section_filter *sec;
67	} filter;
68
69	union {
70		/* list of TS and PES feeds (struct dmxdev_feed) */
71		struct list_head ts;
72		struct dmx_section_feed *sec;
73	} feed;
74
75	union {
76		struct dmx_sct_filter_params sec;
77		struct dmx_pes_filter_params pes;
78	} params;
79
80	enum dmxdev_type type;
81	enum dmxdev_state state;
82	struct dmxdev *dev;
83	struct dvb_ringbuffer buffer;
84
85	struct mutex mutex;
86
87	/* only for sections */
88	struct timer_list timer;
89	int todo;
90	u8 secheader[3];
91};
92
93
94struct dmxdev {
95	struct dvb_device *dvbdev;
96	struct dvb_device *dvr_dvbdev;
97
98	struct dmxdev_filter *filter;
99	struct dmx_demux *demux;
100
101	int filternum;
102	int capabilities;
103
104	unsigned int exit:1;
105#define DMXDEV_CAP_DUPLEX 1
106	struct dmx_frontend *dvr_orig_fe;
107
108	struct dvb_ringbuffer dvr_buffer;
109#define DVR_BUFFER_SIZE (10*188*1024)
110
111	struct mutex mutex;
112	spinlock_t lock;
113};
114
115
116int dvb_dmxdev_init(struct dmxdev *dmxdev, struct dvb_adapter *);
117void dvb_dmxdev_release(struct dmxdev *dmxdev);
118
119#endif /* _DMXDEV_H_ */
120