tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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/timer.h>
30#include <linux/wait.h>
31#include <linux/fs.h>
32#include <linux/string.h>
33#include <linux/mutex.h>
34
35#include <linux/dvb/dmx.h>
36
37#include "dvbdev.h"
38#include "demux.h"
39#include "dvb_ringbuffer.h"
40
41enum dmxdev_type {
42 DMXDEV_TYPE_NONE,
43 DMXDEV_TYPE_SEC,
44 DMXDEV_TYPE_PES,
45};
46
47enum dmxdev_state {
48 DMXDEV_STATE_FREE,
49 DMXDEV_STATE_ALLOCATED,
50 DMXDEV_STATE_SET,
51 DMXDEV_STATE_GO,
52 DMXDEV_STATE_DONE,
53 DMXDEV_STATE_TIMEDOUT
54};
55
56struct dmxdev_filter {
57 union {
58 struct dmx_section_filter *sec;
59 } filter;
60
61 union {
62 struct dmx_ts_feed *ts;
63 struct dmx_section_feed *sec;
64 } feed;
65
66 union {
67 struct dmx_sct_filter_params sec;
68 struct dmx_pes_filter_params pes;
69 } params;
70
71 enum dmxdev_type type;
72 enum dmxdev_state state;
73 struct dmxdev *dev;
74 struct dvb_ringbuffer buffer;
75
76 struct mutex mutex;
77
78 /* only for sections */
79 struct timer_list timer;
80 int todo;
81 u8 secheader[3];
82};
83
84
85struct dmxdev {
86 struct dvb_device *dvbdev;
87 struct dvb_device *dvr_dvbdev;
88
89 struct dmxdev_filter *filter;
90 struct dmx_demux *demux;
91
92 int filternum;
93 int capabilities;
94#define DMXDEV_CAP_DUPLEX 1
95 struct dmx_frontend *dvr_orig_fe;
96
97 struct dvb_ringbuffer dvr_buffer;
98#define DVR_BUFFER_SIZE (10*188*1024)
99
100 struct mutex mutex;
101 spinlock_t lock;
102};
103
104
105int dvb_dmxdev_init(struct dmxdev *dmxdev, struct dvb_adapter *);
106void dvb_dmxdev_release(struct dmxdev *dmxdev);
107
108#endif /* _DMXDEV_H_ */