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_ */