dmxdev.h

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/*
 * 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_ */