[mirror_ubuntu-zesty-kernel.git] / drivers / media / dvb-core / dvb_demux.h

/*
 * dvb_demux.h: DVB kernel demux API
 *
 * Copyright (C) 2000-2001 Marcus Metzler & Ralph 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 _DVB_DEMUX_H_
#define _DVB_DEMUX_H_

#include <linux/time.h>
#include <linux/timer.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>

#include "demux.h"

#define DMX_TYPE_TS  0
#define DMX_TYPE_SEC 1
#define DMX_TYPE_PES 2

#define DMX_STATE_FREE      0
#define DMX_STATE_ALLOCATED 1
#define DMX_STATE_SET       2
#define DMX_STATE_READY     3
#define DMX_STATE_GO        4

#define DVB_DEMUX_MASK_MAX 18

#define MAX_PID 0x1fff

#define SPEED_PKTS_INTERVAL 50000

struct dvb_demux_filter {
	struct dmx_section_filter filter;
	u8 maskandmode[DMX_MAX_FILTER_SIZE];
	u8 maskandnotmode[DMX_MAX_FILTER_SIZE];
	int doneq;

	struct dvb_demux_filter *next;
	struct dvb_demux_feed *feed;
	int index;
	int state;
	int type;

	u16 hw_handle;
	struct timer_list timer;
};

#define DMX_FEED_ENTRY(pos) list_entry(pos, struct dvb_demux_feed, list_head)

struct dvb_demux_feed {
	union {
		struct dmx_ts_feed ts;
		struct dmx_section_feed sec;
	} feed;

	union {
		dmx_ts_cb ts;
		dmx_section_cb sec;
	} cb;

	struct dvb_demux *demux;
	void *priv;
	int type;
	int state;
	u16 pid;

	ktime_t timeout;
	struct dvb_demux_filter *filter;

	int ts_type;
	enum dmx_ts_pes pes_type;

	int cc;
	int pusi_seen;		/* prevents feeding of garbage from previous section */

	u16 peslen;

	struct list_head list_head;
	unsigned int index;	/* a unique index for each feed (can be used as hardware pid filter index) */
};

struct dvb_demux {
	struct dmx_demux dmx;
	void *priv;
	int filternum;
	int feednum;
	int (*start_feed)(struct dvb_demux_feed *feed);
	int (*stop_feed)(struct dvb_demux_feed *feed);
	int (*write_to_decoder)(struct dvb_demux_feed *feed,
				 const u8 *buf, size_t len);
	u32 (*check_crc32)(struct dvb_demux_feed *feed,
			    const u8 *buf, size_t len);
	void (*memcopy)(struct dvb_demux_feed *feed, u8 *dst,
			 const u8 *src, size_t len);

	int users;
#define MAX_DVB_DEMUX_USERS 10
	struct dvb_demux_filter *filter;
	struct dvb_demux_feed *feed;

	struct list_head frontend_list;

	struct dvb_demux_feed *pesfilter[DMX_PES_OTHER];
	u16 pids[DMX_PES_OTHER];
	int playing;
	int recording;

#define DMX_MAX_PID 0x2000
	struct list_head feed_list;
	u8 tsbuf[204];
	int tsbufp;

	struct mutex mutex;
	spinlock_t lock;

	uint8_t *cnt_storage; /* for TS continuity check */

	ktime_t speed_last_time; /* for TS speed check */
	uint32_t speed_pkts_cnt; /* for TS speed check */
};

int dvb_dmx_init(struct dvb_demux *dvbdemux);
void dvb_dmx_release(struct dvb_demux *dvbdemux);
void dvb_dmx_swfilter_packets(struct dvb_demux *dvbdmx, const u8 *buf,
			      size_t count);
void dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, size_t count);
void dvb_dmx_swfilter_204(struct dvb_demux *demux, const u8 *buf,
			  size_t count);
void dvb_dmx_swfilter_raw(struct dvb_demux *demux, const u8 *buf,
			  size_t count);

#endif /* _DVB_DEMUX_H_ */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* dvb_demux.h: DVB kernel demux API
	3	*
	4	* Copyright (C) 2000-2001 Marcus Metzler & Ralph 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
1da177e4 LT	23	#ifndef _DVB_DEMUX_H_
	24	#define _DVB_DEMUX_H_
	25
	26	#include <linux/time.h>
	27	#include <linux/timer.h>
	28	#include <linux/spinlock.h>
3593cab5	29	#include <linux/mutex.h>
1da177e4 LT	30
	31	#include "demux.h"
	32
	33	#define DMX_TYPE_TS 0
	34	#define DMX_TYPE_SEC 1
	35	#define DMX_TYPE_PES 2
	36
	37	#define DMX_STATE_FREE 0
	38	#define DMX_STATE_ALLOCATED 1
	39	#define DMX_STATE_SET 2
	40	#define DMX_STATE_READY 3
	41	#define DMX_STATE_GO 4
	42
	43	#define DVB_DEMUX_MASK_MAX 18
	44
0d834635 AO	45	#define MAX_PID 0x1fff
0d834635 AO	46
26b9d6c0 AO	47	#define SPEED_PKTS_INTERVAL 50000
26b9d6c0 AO	48
1da177e4	49	struct dvb_demux_filter {
dad4a730 AO	50	struct dmx_section_filter filter;
	51	u8 maskandmode[DMX_MAX_FILTER_SIZE];
	52	u8 maskandnotmode[DMX_MAX_FILTER_SIZE];
1da177e4 LT	53	int doneq;
1da177e4 LT	54
dad4a730 AO	55	struct dvb_demux_filter *next;
	56	struct dvb_demux_feed *feed;
	57	int index;
	58	int state;
	59	int type;
1da177e4	60
dad4a730 AO	61	u16 hw_handle;
dad4a730 AO	62	struct timer_list timer;
1da177e4 LT	63	};
1da177e4 LT	64
1da177e4 LT	65	#define DMX_FEED_ENTRY(pos) list_entry(pos, struct dvb_demux_feed, list_head)
	66
	67	struct dvb_demux_feed {
dad4a730 AO	68	union {
	69	struct dmx_ts_feed ts;
	70	struct dmx_section_feed sec;
1da177e4 LT	71	} feed;
1da177e4 LT	72
dad4a730 AO	73	union {
	74	dmx_ts_cb ts;
	75	dmx_section_cb sec;
1da177e4 LT	76	} cb;
1da177e4 LT	77
dad4a730	78	struct dvb_demux *demux;
1da177e4	79	void *priv;
dad4a730 AO	80	int type;
	81	int state;
	82	u16 pid;
1da177e4	83
e95be158	84	ktime_t timeout;
dad4a730	85	struct dvb_demux_filter *filter;
1da177e4	86
dad4a730 AO	87	int ts_type;
dad4a730 AO	88	enum dmx_ts_pes pes_type;
1da177e4	89
dad4a730 AO	90	int cc;
dad4a730 AO	91	int pusi_seen; /* prevents feeding of garbage from previous section */
1da177e4	92
dad4a730	93	u16 peslen;
1da177e4 LT	94
1da177e4 LT	95	struct list_head list_head;
dad4a730	96	unsigned int index; /* a unique index for each feed (can be used as hardware pid filter index) */
1da177e4 LT	97	};
	98
	99	struct dvb_demux {
dad4a730 AO	100	struct dmx_demux dmx;
	101	void *priv;
	102	int filternum;
	103	int feednum;
	104	int (start_feed)(struct dvb_demux_feed feed);
	105	int (stop_feed)(struct dvb_demux_feed feed);
	106	int (write_to_decoder)(struct dvb_demux_feed feed,
1da177e4	107	const u8 *buf, size_t len);
dad4a730	108	u32 (check_crc32)(struct dvb_demux_feed feed,
1da177e4	109	const u8 *buf, size_t len);
dad4a730	110	void (memcopy)(struct dvb_demux_feed feed, u8 *dst,
1da177e4 LT	111	const u8 *src, size_t len);
1da177e4 LT	112
dad4a730	113	int users;
1da177e4	114	#define MAX_DVB_DEMUX_USERS 10
dad4a730 AO	115	struct dvb_demux_filter *filter;
dad4a730 AO	116	struct dvb_demux_feed *feed;
1da177e4	117
dad4a730	118	struct list_head frontend_list;
1da177e4	119
fde04ab9 MCC	120	struct dvb_demux_feed *pesfilter[DMX_PES_OTHER];
fde04ab9 MCC	121	u16 pids[DMX_PES_OTHER];
dad4a730 AO	122	int playing;
dad4a730 AO	123	int recording;
1da177e4 LT	124
	125	#define DMX_MAX_PID 0x2000
	126	struct list_head feed_list;
dad4a730 AO	127	u8 tsbuf[204];
dad4a730 AO	128	int tsbufp;
1da177e4	129
3593cab5	130	struct mutex mutex;
1da177e4	131	spinlock_t lock;
0d834635 AO	132
0d834635 AO	133	uint8_t cnt_storage; / for TS continuity check */
26b9d6c0	134
e95be158	135	ktime_t speed_last_time; /* for TS speed check */
26b9d6c0	136	uint32_t speed_pkts_cnt; /* for TS speed check */
1da177e4 LT	137	};
1da177e4 LT	138
1da177e4	139	int dvb_dmx_init(struct dvb_demux *dvbdemux);
93653467	140	void dvb_dmx_release(struct dvb_demux *dvbdemux);
dad4a730 AO	141	void dvb_dmx_swfilter_packets(struct dvb_demux dvbdmx, const u8 buf,
dad4a730 AO	142	size_t count);
1da177e4	143	void dvb_dmx_swfilter(struct dvb_demux demux, const u8 buf, size_t count);
dad4a730 AO	144	void dvb_dmx_swfilter_204(struct dvb_demux demux, const u8 buf,
dad4a730 AO	145	size_t count);
8e156702 MK	146	void dvb_dmx_swfilter_raw(struct dvb_demux demux, const u8 buf,
8e156702 MK	147	size_t count);
1da177e4 LT	148
1da177e4 LT	149	#endif /* _DVB_DEMUX_H_ */