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dmxdev.h

/*
 * 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/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_filter {
      union {
            struct dmx_section_filter *sec;
      } filter;

      union {
            struct dmx_ts_feed *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_ */

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