[media] dvb: move the dvb core one level up

just like the V4L2 core, move the DVB core to drivers/media, as the
intention is to get rid of both "video" and "dvb" directories.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 0 insertions, 1318 deletions

diff --git a/drivers/media/dvb/dvb-core/dvb_demux.c b/drivers/media/dvb/dvb-core/dvb_demux.c
deleted file mode 100644
index 17cb81fd194..00000000000
--- a/drivers/media/dvb/dvb-core/dvb_demux.c
+++ /dev/null
@@ -1,1318 +0,0 @@
-/*
- * dvb_demux.c - DVB kernel demux API
- *
- * Copyright (C) 2000-2001 Ralph  Metzler <ralph@convergence.de>
- *		       & Marcus Metzler <marcus@convergence.de>
- *			 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.
- *
- */
-
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/module.h>
-#include <linux/poll.h>
-#include <linux/string.h>
-#include <linux/crc32.h>
-#include <asm/uaccess.h>
-#include <asm/div64.h>
-
-#include "dvb_demux.h"
-
-#define NOBUFS
-/*
-** #define DVB_DEMUX_SECTION_LOSS_LOG to monitor payload loss in the syslog
-*/
-// #define DVB_DEMUX_SECTION_LOSS_LOG
-
-static int dvb_demux_tscheck;
-module_param(dvb_demux_tscheck, int, 0644);
-MODULE_PARM_DESC(dvb_demux_tscheck,
-		"enable transport stream continuity and TEI check");
-
-static int dvb_demux_speedcheck;
-module_param(dvb_demux_speedcheck, int, 0644);
-MODULE_PARM_DESC(dvb_demux_speedcheck,
-		"enable transport stream speed check");
-
-static int dvb_demux_feed_err_pkts = 1;
-module_param(dvb_demux_feed_err_pkts, int, 0644);
-MODULE_PARM_DESC(dvb_demux_feed_err_pkts,
-		 "when set to 0, drop packets with the TEI bit set (1 by default)");
-
-#define dprintk_tscheck(x...) do {                              \
-		if (dvb_demux_tscheck && printk_ratelimit())    \
-			printk(x);                              \
-	} while (0)
-
-/******************************************************************************
- * static inlined helper functions
- ******************************************************************************/
-
-static inline u16 section_length(const u8 *buf)
-{
-	return 3 + ((buf[1] & 0x0f) << 8) + buf[2];
-}
-
-static inline u16 ts_pid(const u8 *buf)
-{
-	return ((buf[1] & 0x1f) << 8) + buf[2];
-}
-
-static inline u8 payload(const u8 *tsp)
-{
-	if (!(tsp[3] & 0x10))	// no payload?
-		return 0;
-
-	if (tsp[3] & 0x20) {	// adaptation field?
-		if (tsp[4] > 183)	// corrupted data?
-			return 0;
-		else
-			return 184 - 1 - tsp[4];
-	}
-
-	return 184;
-}
-
-static u32 dvb_dmx_crc32(struct dvb_demux_feed *f, const u8 *src, size_t len)
-{
-	return (f->feed.sec.crc_val = crc32_be(f->feed.sec.crc_val, src, len));
-}
-
-static void dvb_dmx_memcopy(struct dvb_demux_feed *f, u8 *d, const u8 *s,
-			    size_t len)
-{
-	memcpy(d, s, len);
-}
-
-/******************************************************************************
- * Software filter functions
- ******************************************************************************/
-
-static inline int dvb_dmx_swfilter_payload(struct dvb_demux_feed *feed,
-					   const u8 *buf)
-{
-	int count = payload(buf);
-	int p;
-	//int ccok;
-	//u8 cc;
-
-	if (count == 0)
-		return -1;
-
-	p = 188 - count;
-
-	/*
-	cc = buf[3] & 0x0f;
-	ccok = ((feed->cc + 1) & 0x0f) == cc;
-	feed->cc = cc;
-	if (!ccok)
-		printk("missed packet!\n");
-	*/
-
-	if (buf[1] & 0x40)	// PUSI ?
-		feed->peslen = 0xfffa;
-
-	feed->peslen += count;
-
-	return feed->cb.ts(&buf[p], count, NULL, 0, &feed->feed.ts, DMX_OK);
-}
-
-static int dvb_dmx_swfilter_sectionfilter(struct dvb_demux_feed *feed,
-					  struct dvb_demux_filter *f)
-{
-	u8 neq = 0;
-	int i;
-
-	for (i = 0; i < DVB_DEMUX_MASK_MAX; i++) {
-		u8 xor = f->filter.filter_value[i] ^ feed->feed.sec.secbuf[i];
-
-		if (f->maskandmode[i] & xor)
-			return 0;
-
-		neq |= f->maskandnotmode[i] & xor;
-	}
-
-	if (f->doneq && !neq)
-		return 0;
-
-	return feed->cb.sec(feed->feed.sec.secbuf, feed->feed.sec.seclen,
-			    NULL, 0, &f->filter, DMX_OK);
-}
-
-static inline int dvb_dmx_swfilter_section_feed(struct dvb_demux_feed *feed)
-{
-	struct dvb_demux *demux = feed->demux;
-	struct dvb_demux_filter *f = feed->filter;
-	struct dmx_section_feed *sec = &feed->feed.sec;
-	int section_syntax_indicator;
-
-	if (!sec->is_filtering)
-		return 0;
-
-	if (!f)
-		return 0;
-
-	if (sec->check_crc) {
-		section_syntax_indicator = ((sec->secbuf[1] & 0x80) != 0);
-		if (section_syntax_indicator &&
-		    demux->check_crc32(feed, sec->secbuf, sec->seclen))
-			return -1;
-	}
-
-	do {
-		if (dvb_dmx_swfilter_sectionfilter(feed, f) < 0)
-			return -1;
-	} while ((f = f->next) && sec->is_filtering);
-
-	sec->seclen = 0;
-
-	return 0;
-}
-
-static void dvb_dmx_swfilter_section_new(struct dvb_demux_feed *feed)
-{
-	struct dmx_section_feed *sec = &feed->feed.sec;
-
-#ifdef DVB_DEMUX_SECTION_LOSS_LOG
-	if (sec->secbufp < sec->tsfeedp) {
-		int i, n = sec->tsfeedp - sec->secbufp;
-
-		/*
-		 * Section padding is done with 0xff bytes entirely.
-		 * Due to speed reasons, we won't check all of them
-		 * but just first and last.
-		 */
-		if (sec->secbuf[0] != 0xff || sec->secbuf[n - 1] != 0xff) {
-			printk("dvb_demux.c section ts padding loss: %d/%d\n",
-			       n, sec->tsfeedp);
-			printk("dvb_demux.c pad data:");
-			for (i = 0; i < n; i++)
-				printk(" %02x", sec->secbuf[i]);
-			printk("\n");
-		}
-	}
-#endif
-
-	sec->tsfeedp = sec->secbufp = sec->seclen = 0;
-	sec->secbuf = sec->secbuf_base;
-}
-
-/*
- * Losless Section Demux 1.4.1 by Emard
- * Valsecchi Patrick:
- *  - middle of section A  (no PUSI)
- *  - end of section A and start of section B
- *    (with PUSI pointing to the start of the second section)
- *
- *  In this case, without feed->pusi_seen you'll receive a garbage section
- *  consisting of the end of section A. Basically because tsfeedp
- *  is incemented and the use=0 condition is not raised
- *  when the second packet arrives.
- *
- * Fix:
- * when demux is started, let feed->pusi_seen = 0 to
- * prevent initial feeding of garbage from the end of
- * previous section. When you for the first time see PUSI=1
- * then set feed->pusi_seen = 1
- */
-static int dvb_dmx_swfilter_section_copy_dump(struct dvb_demux_feed *feed,
-					      const u8 *buf, u8 len)
-{
-	struct dvb_demux *demux = feed->demux;
-	struct dmx_section_feed *sec = &feed->feed.sec;
-	u16 limit, seclen, n;
-
-	if (sec->tsfeedp >= DMX_MAX_SECFEED_SIZE)
-		return 0;
-
-	if (sec->tsfeedp + len > DMX_MAX_SECFEED_SIZE) {
-#ifdef DVB_DEMUX_SECTION_LOSS_LOG
-		printk("dvb_demux.c section buffer full loss: %d/%d\n",
-		       sec->tsfeedp + len - DMX_MAX_SECFEED_SIZE,
-		       DMX_MAX_SECFEED_SIZE);
-#endif
-		len = DMX_MAX_SECFEED_SIZE - sec->tsfeedp;
-	}
-
-	if (len <= 0)
-		return 0;
-
-	demux->memcopy(feed, sec->secbuf_base + sec->tsfeedp, buf, len);
-	sec->tsfeedp += len;
-
-	/*
-	 * Dump all the sections we can find in the data (Emard)
-	 */
-	limit = sec->tsfeedp;
-	if (limit > DMX_MAX_SECFEED_SIZE)
-		return -1;	/* internal error should never happen */
-
-	/* to be sure always set secbuf */
-	sec->secbuf = sec->secbuf_base + sec->secbufp;
-
-	for (n = 0; sec->secbufp + 2 < limit; n++) {
-		seclen = section_length(sec->secbuf);
-		if (seclen <= 0 || seclen > DMX_MAX_SECTION_SIZE
-		    || seclen + sec->secbufp > limit)
-			return 0;
-		sec->seclen = seclen;
-		sec->crc_val = ~0;
-		/* dump [secbuf .. secbuf+seclen) */
-		if (feed->pusi_seen)
-			dvb_dmx_swfilter_section_feed(feed);
-#ifdef DVB_DEMUX_SECTION_LOSS_LOG
-		else
-			printk("dvb_demux.c pusi not seen, discarding section data\n");
-#endif
-		sec->secbufp += seclen;	/* secbufp and secbuf moving together is */
-		sec->secbuf += seclen;	/* redundant but saves pointer arithmetic */
-	}
-
-	return 0;
-}
-
-static int dvb_dmx_swfilter_section_packet(struct dvb_demux_feed *feed,
-					   const u8 *buf)
-{
-	u8 p, count;
-	int ccok, dc_i = 0;
-	u8 cc;
-
-	count = payload(buf);
-
-	if (count == 0)		/* count == 0 if no payload or out of range */
-		return -1;
-
-	p = 188 - count;	/* payload start */
-
-	cc = buf[3] & 0x0f;
-	ccok = ((feed->cc + 1) & 0x0f) == cc;
-	feed->cc = cc;
-
-	if (buf[3] & 0x20) {
-		/* adaption field present, check for discontinuity_indicator */
-		if ((buf[4] > 0) && (buf[5] & 0x80))
-			dc_i = 1;
-	}
-
-	if (!ccok || dc_i) {
-#ifdef DVB_DEMUX_SECTION_LOSS_LOG
-		printk("dvb_demux.c discontinuity detected %d bytes lost\n",
-		       count);
-		/*
-		 * those bytes under sume circumstances will again be reported
-		 * in the following dvb_dmx_swfilter_section_new
-		 */
-#endif
-		/*
-		 * Discontinuity detected. Reset pusi_seen = 0 to
-		 * stop feeding of suspicious data until next PUSI=1 arrives
-		 */
-		feed->pusi_seen = 0;
-		dvb_dmx_swfilter_section_new(feed);
-	}
-
-	if (buf[1] & 0x40) {
-		/* PUSI=1 (is set), section boundary is here */
-		if (count > 1 && buf[p] < count) {
-			const u8 *before = &buf[p + 1];
-			u8 before_len = buf[p];
-			const u8 *after = &before[before_len];
-			u8 after_len = count - 1 - before_len;
-
-			dvb_dmx_swfilter_section_copy_dump(feed, before,
-							   before_len);
-			/* before start of new section, set pusi_seen = 1 */
-			feed->pusi_seen = 1;
-			dvb_dmx_swfilter_section_new(feed);
-			dvb_dmx_swfilter_section_copy_dump(feed, after,
-							   after_len);
-		}
-#ifdef DVB_DEMUX_SECTION_LOSS_LOG
-		else if (count > 0)
-			printk("dvb_demux.c PUSI=1 but %d bytes lost\n", count);
-#endif
-	} else {
-		/* PUSI=0 (is not set), no section boundary */
-		dvb_dmx_swfilter_section_copy_dump(feed, &buf[p], count);
-	}
-
-	return 0;
-}
-
-static inline void dvb_dmx_swfilter_packet_type(struct dvb_demux_feed *feed,
-						const u8 *buf)
-{
-	switch (feed->type) {
-	case DMX_TYPE_TS:
-		if (!feed->feed.ts.is_filtering)
-			break;
-		if (feed->ts_type & TS_PACKET) {
-			if (feed->ts_type & TS_PAYLOAD_ONLY)
-				dvb_dmx_swfilter_payload(feed, buf);
-			else
-				feed->cb.ts(buf, 188, NULL, 0, &feed->feed.ts,
-					    DMX_OK);
-		}
-		if (feed->ts_type & TS_DECODER)
-			if (feed->demux->write_to_decoder)
-				feed->demux->write_to_decoder(feed, buf, 188);
-		break;
-
-	case DMX_TYPE_SEC:
-		if (!feed->feed.sec.is_filtering)
-			break;
-		if (dvb_dmx_swfilter_section_packet(feed, buf) < 0)
-			feed->feed.sec.seclen = feed->feed.sec.secbufp = 0;
-		break;
-
-	default:
-		break;
-	}
-}
-
-#define DVR_FEED(f)							\
-	(((f)->type == DMX_TYPE_TS) &&					\
-	((f)->feed.ts.is_filtering) &&					\
-	(((f)->ts_type & (TS_PACKET | TS_DEMUX)) == TS_PACKET))
-
-static void dvb_dmx_swfilter_packet(struct dvb_demux *demux, const u8 *buf)
-{
-	struct dvb_demux_feed *feed;
-	u16 pid = ts_pid(buf);
-	int dvr_done = 0;
-
-	if (dvb_demux_speedcheck) {
-		struct timespec cur_time, delta_time;
-		u64 speed_bytes, speed_timedelta;
-
-		demux->speed_pkts_cnt++;
-
-		/* show speed every SPEED_PKTS_INTERVAL packets */
-		if (!(demux->speed_pkts_cnt % SPEED_PKTS_INTERVAL)) {
-			cur_time = current_kernel_time();
-
-			if (demux->speed_last_time.tv_sec != 0 &&
-					demux->speed_last_time.tv_nsec != 0) {
-				delta_time = timespec_sub(cur_time,
-						demux->speed_last_time);
-				speed_bytes = (u64)demux->speed_pkts_cnt
-					* 188 * 8;
-				/* convert to 1024 basis */
-				speed_bytes = 1000 * div64_u64(speed_bytes,
-						1024);
-				speed_timedelta =
-					(u64)timespec_to_ns(&delta_time);
-				speed_timedelta = div64_u64(speed_timedelta,
-						1000000); /* nsec -> usec */
-				printk(KERN_INFO "TS speed %llu Kbits/sec \n",
-						div64_u64(speed_bytes,
-							speed_timedelta));
-			};
-
-			demux->speed_last_time = cur_time;
-			demux->speed_pkts_cnt = 0;
-		};
-	};
-
-	if (buf[1] & 0x80) {
-		dprintk_tscheck("TEI detected. "
-				"PID=0x%x data1=0x%x\n",
-				pid, buf[1]);
-		/* data in this packet cant be trusted - drop it unless
-		 * module option dvb_demux_feed_err_pkts is set */
-		if (!dvb_demux_feed_err_pkts)
-			return;
-	} else /* if TEI bit is set, pid may be wrong- skip pkt counter */
-	if (demux->cnt_storage && dvb_demux_tscheck) {
-		/* check pkt counter */
-		if (pid < MAX_PID) {
-			if ((buf[3] & 0xf) != demux->cnt_storage[pid])
-				dprintk_tscheck("TS packet counter mismatch. "
-						"PID=0x%x expected 0x%x "
-						"got 0x%x\n",
-						pid, demux->cnt_storage[pid],
-						buf[3] & 0xf);
-
-			demux->cnt_storage[pid] = ((buf[3] & 0xf) + 1)&0xf;
-		};
-		/* end check */
-	};
-
-	list_for_each_entry(feed, &demux->feed_list, list_head) {
-		if ((feed->pid != pid) && (feed->pid != 0x2000))
-			continue;
-
-		/* copy each packet only once to the dvr device, even
-		 * if a PID is in multiple filters (e.g. video + PCR) */
-		if ((DVR_FEED(feed)) && (dvr_done++))
-			continue;
-
-		if (feed->pid == pid)
-			dvb_dmx_swfilter_packet_type(feed, buf);
-		else if (feed->pid == 0x2000)
-			feed->cb.ts(buf, 188, NULL, 0, &feed->feed.ts, DMX_OK);
-	}
-}
-
-void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf,
-			      size_t count)
-{
-	spin_lock(&demux->lock);
-
-	while (count--) {
-		if (buf[0] == 0x47)
-			dvb_dmx_swfilter_packet(demux, buf);
-		buf += 188;
-	}
-
-	spin_unlock(&demux->lock);
-}
-
-EXPORT_SYMBOL(dvb_dmx_swfilter_packets);
-
-static inline int find_next_packet(const u8 *buf, int pos, size_t count,
-				   const int pktsize)
-{
-	int start = pos, lost;
-
-	while (pos < count) {
-		if (buf[pos] == 0x47 ||
-		    (pktsize == 204 && buf[pos] == 0xB8))
-			break;
-		pos++;
-	}
-
-	lost = pos - start;
-	if (lost) {
-		/* This garbage is part of a valid packet? */
-		int backtrack = pos - pktsize;
-		if (backtrack >= 0 && (buf[backtrack] == 0x47 ||
-		    (pktsize == 204 && buf[backtrack] == 0xB8)))
-			return backtrack;
-	}
-
-	return pos;
-}
-
-/* Filter all pktsize= 188 or 204 sized packets and skip garbage. */
-static inline void _dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf,
-		size_t count, const int pktsize)
-{
-	int p = 0, i, j;
-	const u8 *q;
-
-	spin_lock(&demux->lock);
-
-	if (demux->tsbufp) { /* tsbuf[0] is now 0x47. */
-		i = demux->tsbufp;
-		j = pktsize - i;
-		if (count < j) {
-			memcpy(&demux->tsbuf[i], buf, count);
-			demux->tsbufp += count;
-			goto bailout;
-		}
-		memcpy(&demux->tsbuf[i], buf, j);
-		if (demux->tsbuf[0] == 0x47) /* double check */
-			dvb_dmx_swfilter_packet(demux, demux->tsbuf);
-		demux->tsbufp = 0;
-		p += j;
-	}
-
-	while (1) {
-		p = find_next_packet(buf, p, count, pktsize);
-		if (p >= count)
-			break;
-		if (count - p < pktsize)
-			break;
-
-		q = &buf[p];
-
-		if (pktsize == 204 && (*q == 0xB8)) {
-			memcpy(demux->tsbuf, q, 188);
-			demux->tsbuf[0] = 0x47;
-			q = demux->tsbuf;
-		}
-		dvb_dmx_swfilter_packet(demux, q);
-		p += pktsize;
-	}
-
-	i = count - p;
-	if (i) {
-		memcpy(demux->tsbuf, &buf[p], i);
-		demux->tsbufp = i;
-		if (pktsize == 204 && demux->tsbuf[0] == 0xB8)
-			demux->tsbuf[0] = 0x47;
-	}
-
-bailout:
-	spin_unlock(&demux->lock);
-}
-
-void dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, size_t count)
-{
-	_dvb_dmx_swfilter(demux, buf, count, 188);
-}
-EXPORT_SYMBOL(dvb_dmx_swfilter);
-
-void dvb_dmx_swfilter_204(struct dvb_demux *demux, const u8 *buf, size_t count)
-{
-	_dvb_dmx_swfilter(demux, buf, count, 204);
-}
-EXPORT_SYMBOL(dvb_dmx_swfilter_204);
-
-void dvb_dmx_swfilter_raw(struct dvb_demux *demux, const u8 *buf, size_t count)
-{
-	spin_lock(&demux->lock);
-
-	demux->feed->cb.ts(buf, count, NULL, 0, &demux->feed->feed.ts, DMX_OK);
-
-	spin_unlock(&demux->lock);
-}
-EXPORT_SYMBOL(dvb_dmx_swfilter_raw);
-
-static struct dvb_demux_filter *dvb_dmx_filter_alloc(struct dvb_demux *demux)
-{
-	int i;
-
-	for (i = 0; i < demux->filternum; i++)
-		if (demux->filter[i].state == DMX_STATE_FREE)
-			break;
-
-	if (i == demux->filternum)
-		return NULL;
-
-	demux->filter[i].state = DMX_STATE_ALLOCATED;
-
-	return &demux->filter[i];
-}
-
-static struct dvb_demux_feed *dvb_dmx_feed_alloc(struct dvb_demux *demux)
-{
-	int i;
-
-	for (i = 0; i < demux->feednum; i++)
-		if (demux->feed[i].state == DMX_STATE_FREE)
-			break;
-
-	if (i == demux->feednum)
-		return NULL;
-
-	demux->feed[i].state = DMX_STATE_ALLOCATED;
-
-	return &demux->feed[i];
-}
-
-static int dvb_demux_feed_find(struct dvb_demux_feed *feed)
-{
-	struct dvb_demux_feed *entry;
-
-	list_for_each_entry(entry, &feed->demux->feed_list, list_head)
-		if (entry == feed)
-			return 1;
-
-	return 0;
-}
-
-static void dvb_demux_feed_add(struct dvb_demux_feed *feed)
-{
-	spin_lock_irq(&feed->demux->lock);
-	if (dvb_demux_feed_find(feed)) {
-		printk(KERN_ERR "%s: feed already in list (type=%x state=%x pid=%x)\n",
-		       __func__, feed->type, feed->state, feed->pid);
-		goto out;
-	}
-
-	list_add(&feed->list_head, &feed->demux->feed_list);
-out:
-	spin_unlock_irq(&feed->demux->lock);
-}
-
-static void dvb_demux_feed_del(struct dvb_demux_feed *feed)
-{
-	spin_lock_irq(&feed->demux->lock);
-	if (!(dvb_demux_feed_find(feed))) {
-		printk(KERN_ERR "%s: feed not in list (type=%x state=%x pid=%x)\n",
-		       __func__, feed->type, feed->state, feed->pid);
-		goto out;
-	}
-
-	list_del(&feed->list_head);
-out:
-	spin_unlock_irq(&feed->demux->lock);
-}
-
-static int dmx_ts_feed_set(struct dmx_ts_feed *ts_feed, u16 pid, int ts_type,
-			   enum dmx_ts_pes pes_type,
-			   size_t circular_buffer_size, struct timespec timeout)
-{
-	struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
-	struct dvb_demux *demux = feed->demux;
-
-	if (pid > DMX_MAX_PID)
-		return -EINVAL;
-
-	if (mutex_lock_interruptible(&demux->mutex))
-		return -ERESTARTSYS;
-
-	if (ts_type & TS_DECODER) {
-		if (pes_type >= DMX_TS_PES_OTHER) {
-			mutex_unlock(&demux->mutex);
-			return -EINVAL;
-		}
-
-		if (demux->pesfilter[pes_type] &&
-		    demux->pesfilter[pes_type] != feed) {
-			mutex_unlock(&demux->mutex);
-			return -EINVAL;
-		}
-
-		demux->pesfilter[pes_type] = feed;
-		demux->pids[pes_type] = pid;
-	}
-
-	dvb_demux_feed_add(feed);
-
-	feed->pid = pid;
-	feed->buffer_size = circular_buffer_size;
-	feed->timeout = timeout;
-	feed->ts_type = ts_type;
-	feed->pes_type = pes_type;
-
-	if (feed->buffer_size) {
-#ifdef NOBUFS
-		feed->buffer = NULL;
-#else
-		feed->buffer = vmalloc(feed->buffer_size);
-		if (!feed->buffer) {
-			mutex_unlock(&demux->mutex);
-			return -ENOMEM;
-		}
-#endif
-	}
-
-	feed->state = DMX_STATE_READY;
-	mutex_unlock(&demux->mutex);
-
-	return 0;
-}
-
-static int dmx_ts_feed_start_filtering(struct dmx_ts_feed *ts_feed)
-{
-	struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
-	struct dvb_demux *demux = feed->demux;
-	int ret;
-
-	if (mutex_lock_interruptible(&demux->mutex))
-		return -ERESTARTSYS;
-
-	if (feed->state != DMX_STATE_READY || feed->type != DMX_TYPE_TS) {
-		mutex_unlock(&demux->mutex);
-		return -EINVAL;
-	}
-
-	if (!demux->start_feed) {
-		mutex_unlock(&demux->mutex);
-		return -ENODEV;
-	}
-
-	if ((ret = demux->start_feed(feed)) < 0) {
-		mutex_unlock(&demux->mutex);
-		return ret;
-	}
-
-	spin_lock_irq(&demux->lock);
-	ts_feed->is_filtering = 1;
-	feed->state = DMX_STATE_GO;
-	spin_unlock_irq(&demux->lock);
-	mutex_unlock(&demux->mutex);
-
-	return 0;
-}
-
-static int dmx_ts_feed_stop_filtering(struct dmx_ts_feed *ts_feed)
-{
-	struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
-	struct dvb_demux *demux = feed->demux;
-	int ret;
-
-	mutex_lock(&demux->mutex);
-
-	if (feed->state < DMX_STATE_GO) {
-		mutex_unlock(&demux->mutex);
-		return -EINVAL;
-	}
-
-	if (!demux->stop_feed) {
-		mutex_unlock(&demux->mutex);
-		return -ENODEV;
-	}
-
-	ret = demux->stop_feed(feed);
-
-	spin_lock_irq(&demux->lock);
-	ts_feed->is_filtering = 0;
-	feed->state = DMX_STATE_ALLOCATED;
-	spin_unlock_irq(&demux->lock);
-	mutex_unlock(&demux->mutex);
-
-	return ret;
-}
-
-static int dvbdmx_allocate_ts_feed(struct dmx_demux *dmx,
-				   struct dmx_ts_feed **ts_feed,
-				   dmx_ts_cb callback)
-{
-	struct dvb_demux *demux = (struct dvb_demux *)dmx;
-	struct dvb_demux_feed *feed;
-
-	if (mutex_lock_interruptible(&demux->mutex))
-		return -ERESTARTSYS;
-
-	if (!(feed = dvb_dmx_feed_alloc(demux))) {
-		mutex_unlock(&demux->mutex);
-		return -EBUSY;
-	}
-
-	feed->type = DMX_TYPE_TS;
-	feed->cb.ts = callback;
-	feed->demux = demux;
-	feed->pid = 0xffff;
-	feed->peslen = 0xfffa;
-	feed->buffer = NULL;
-
-	(*ts_feed) = &feed->feed.ts;
-	(*ts_feed)->parent = dmx;
-	(*ts_feed)->priv = NULL;
-	(*ts_feed)->is_filtering = 0;
-	(*ts_feed)->start_filtering = dmx_ts_feed_start_filtering;
-	(*ts_feed)->stop_filtering = dmx_ts_feed_stop_filtering;
-	(*ts_feed)->set = dmx_ts_feed_set;
-
-	if (!(feed->filter = dvb_dmx_filter_alloc(demux))) {
-		feed->state = DMX_STATE_FREE;
-		mutex_unlock(&demux->mutex);
-		return -EBUSY;
-	}
-
-	feed->filter->type = DMX_TYPE_TS;
-	feed->filter->feed = feed;
-	feed->filter->state = DMX_STATE_READY;
-
-	mutex_unlock(&demux->mutex);
-
-	return 0;
-}
-
-static int dvbdmx_release_ts_feed(struct dmx_demux *dmx,
-				  struct dmx_ts_feed *ts_feed)
-{
-	struct dvb_demux *demux = (struct dvb_demux *)dmx;
-	struct dvb_demux_feed *feed = (struct dvb_demux_feed *)ts_feed;
-
-	mutex_lock(&demux->mutex);
-
-	if (feed->state == DMX_STATE_FREE) {
-		mutex_unlock(&demux->mutex);
-		return -EINVAL;
-	}
-#ifndef NOBUFS
-	vfree(feed->buffer);
-	feed->buffer = NULL;
-#endif
-
-	feed->state = DMX_STATE_FREE;
-	feed->filter->state = DMX_STATE_FREE;
-
-	dvb_demux_feed_del(feed);
-
-	feed->pid = 0xffff;
-
-	if (feed->ts_type & TS_DECODER && feed->pes_type < DMX_TS_PES_OTHER)
-		demux->pesfilter[feed->pes_type] = NULL;
-
-	mutex_unlock(&demux->mutex);
-	return 0;
-}
-
-/******************************************************************************
- * dmx_section_feed API calls
- ******************************************************************************/
-
-static int dmx_section_feed_allocate_filter(struct dmx_section_feed *feed,
-					    struct dmx_section_filter **filter)
-{
-	struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
-	struct dvb_demux *dvbdemux = dvbdmxfeed->demux;
-	struct dvb_demux_filter *dvbdmxfilter;
-
-	if (mutex_lock_interruptible(&dvbdemux->mutex))
-		return -ERESTARTSYS;
-
-	dvbdmxfilter = dvb_dmx_filter_alloc(dvbdemux);
-	if (!dvbdmxfilter) {
-		mutex_unlock(&dvbdemux->mutex);
-		return -EBUSY;
-	}
-
-	spin_lock_irq(&dvbdemux->lock);
-	*filter = &dvbdmxfilter->filter;
-	(*filter)->parent = feed;
-	(*filter)->priv = NULL;
-	dvbdmxfilter->feed = dvbdmxfeed;
-	dvbdmxfilter->type = DMX_TYPE_SEC;
-	dvbdmxfilter->state = DMX_STATE_READY;
-	dvbdmxfilter->next = dvbdmxfeed->filter;
-	dvbdmxfeed->filter = dvbdmxfilter;
-	spin_unlock_irq(&dvbdemux->lock);
-
-	mutex_unlock(&dvbdemux->mutex);
-	return 0;
-}
-
-static int dmx_section_feed_set(struct dmx_section_feed *feed,
-				u16 pid, size_t circular_buffer_size,
-				int check_crc)
-{
-	struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
-	struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
-
-	if (pid > 0x1fff)
-		return -EINVAL;
-
-	if (mutex_lock_interruptible(&dvbdmx->mutex))
-		return -ERESTARTSYS;
-
-	dvb_demux_feed_add(dvbdmxfeed);
-
-	dvbdmxfeed->pid = pid;
-	dvbdmxfeed->buffer_size = circular_buffer_size;
-	dvbdmxfeed->feed.sec.check_crc = check_crc;
-
-#ifdef NOBUFS
-	dvbdmxfeed->buffer = NULL;
-#else
-	dvbdmxfeed->buffer = vmalloc(dvbdmxfeed->buffer_size);
-	if (!dvbdmxfeed->buffer) {
-		mutex_unlock(&dvbdmx->mutex);
-		return -ENOMEM;
-	}
-#endif
-
-	dvbdmxfeed->state = DMX_STATE_READY;
-	mutex_unlock(&dvbdmx->mutex);
-	return 0;
-}
-
-static void prepare_secfilters(struct dvb_demux_feed *dvbdmxfeed)
-{
-	int i;
-	struct dvb_demux_filter *f;
-	struct dmx_section_filter *sf;
-	u8 mask, mode, doneq;
-
-	if (!(f = dvbdmxfeed->filter))
-		return;
-	do {
-		sf = &f->filter;
-		doneq = 0;
-		for (i = 0; i < DVB_DEMUX_MASK_MAX; i++) {
-			mode = sf->filter_mode[i];
-			mask = sf->filter_mask[i];
-			f->maskandmode[i] = mask & mode;
-			doneq |= f->maskandnotmode[i] = mask & ~mode;
-		}
-		f->doneq = doneq ? 1 : 0;
-	} while ((f = f->next));
-}
-
-static int dmx_section_feed_start_filtering(struct dmx_section_feed *feed)
-{
-	struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
-	struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
-	int ret;
-
-	if (mutex_lock_interruptible(&dvbdmx->mutex))
-		return -ERESTARTSYS;
-
-	if (feed->is_filtering) {
-		mutex_unlock(&dvbdmx->mutex);
-		return -EBUSY;
-	}
-
-	if (!dvbdmxfeed->filter) {
-		mutex_unlock(&dvbdmx->mutex);
-		return -EINVAL;
-	}
-
-	dvbdmxfeed->feed.sec.tsfeedp = 0;
-	dvbdmxfeed->feed.sec.secbuf = dvbdmxfeed->feed.sec.secbuf_base;
-	dvbdmxfeed->feed.sec.secbufp = 0;
-	dvbdmxfeed->feed.sec.seclen = 0;
-
-	if (!dvbdmx->start_feed) {
-		mutex_unlock(&dvbdmx->mutex);
-		return -ENODEV;
-	}
-
-	prepare_secfilters(dvbdmxfeed);
-
-	if ((ret = dvbdmx->start_feed(dvbdmxfeed)) < 0) {
-		mutex_unlock(&dvbdmx->mutex);
-		return ret;
-	}
-
-	spin_lock_irq(&dvbdmx->lock);
-	feed->is_filtering = 1;
-	dvbdmxfeed->state = DMX_STATE_GO;
-	spin_unlock_irq(&dvbdmx->lock);
-
-	mutex_unlock(&dvbdmx->mutex);
-	return 0;
-}
-
-static int dmx_section_feed_stop_filtering(struct dmx_section_feed *feed)
-{
-	struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
-	struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
-	int ret;
-
-	mutex_lock(&dvbdmx->mutex);
-
-	if (!dvbdmx->stop_feed) {
-		mutex_unlock(&dvbdmx->mutex);
-		return -ENODEV;
-	}
-
-	ret = dvbdmx->stop_feed(dvbdmxfeed);
-
-	spin_lock_irq(&dvbdmx->lock);
-	dvbdmxfeed->state = DMX_STATE_READY;
-	feed->is_filtering = 0;
-	spin_unlock_irq(&dvbdmx->lock);
-
-	mutex_unlock(&dvbdmx->mutex);
-	return ret;
-}
-
-static int dmx_section_feed_release_filter(struct dmx_section_feed *feed,
-					   struct dmx_section_filter *filter)
-{
-	struct dvb_demux_filter *dvbdmxfilter = (struct dvb_demux_filter *)filter, *f;
-	struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
-	struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
-
-	mutex_lock(&dvbdmx->mutex);
-
-	if (dvbdmxfilter->feed != dvbdmxfeed) {
-		mutex_unlock(&dvbdmx->mutex);
-		return -EINVAL;
-	}
-
-	if (feed->is_filtering)
-		feed->stop_filtering(feed);
-
-	spin_lock_irq(&dvbdmx->lock);
-	f = dvbdmxfeed->filter;
-
-	if (f == dvbdmxfilter) {
-		dvbdmxfeed->filter = dvbdmxfilter->next;
-	} else {
-		while (f->next != dvbdmxfilter)
-			f = f->next;
-		f->next = f->next->next;
-	}
-
-	dvbdmxfilter->state = DMX_STATE_FREE;
-	spin_unlock_irq(&dvbdmx->lock);
-	mutex_unlock(&dvbdmx->mutex);
-	return 0;
-}
-
-static int dvbdmx_allocate_section_feed(struct dmx_demux *demux,
-					struct dmx_section_feed **feed,
-					dmx_section_cb callback)
-{
-	struct dvb_demux *dvbdmx = (struct dvb_demux *)demux;
-	struct dvb_demux_feed *dvbdmxfeed;
-
-	if (mutex_lock_interruptible(&dvbdmx->mutex))
-		return -ERESTARTSYS;
-
-	if (!(dvbdmxfeed = dvb_dmx_feed_alloc(dvbdmx))) {
-		mutex_unlock(&dvbdmx->mutex);
-		return -EBUSY;
-	}
-
-	dvbdmxfeed->type = DMX_TYPE_SEC;
-	dvbdmxfeed->cb.sec = callback;
-	dvbdmxfeed->demux = dvbdmx;
-	dvbdmxfeed->pid = 0xffff;
-	dvbdmxfeed->feed.sec.secbuf = dvbdmxfeed->feed.sec.secbuf_base;
-	dvbdmxfeed->feed.sec.secbufp = dvbdmxfeed->feed.sec.seclen = 0;
-	dvbdmxfeed->feed.sec.tsfeedp = 0;
-	dvbdmxfeed->filter = NULL;
-	dvbdmxfeed->buffer = NULL;
-
-	(*feed) = &dvbdmxfeed->feed.sec;
-	(*feed)->is_filtering = 0;
-	(*feed)->parent = demux;
-	(*feed)->priv = NULL;
-
-	(*feed)->set = dmx_section_feed_set;
-	(*feed)->allocate_filter = dmx_section_feed_allocate_filter;
-	(*feed)->start_filtering = dmx_section_feed_start_filtering;
-	(*feed)->stop_filtering = dmx_section_feed_stop_filtering;
-	(*feed)->release_filter = dmx_section_feed_release_filter;
-
-	mutex_unlock(&dvbdmx->mutex);
-	return 0;
-}
-
-static int dvbdmx_release_section_feed(struct dmx_demux *demux,
-				       struct dmx_section_feed *feed)
-{
-	struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *)feed;
-	struct dvb_demux *dvbdmx = (struct dvb_demux *)demux;
-
-	mutex_lock(&dvbdmx->mutex);
-
-	if (dvbdmxfeed->state == DMX_STATE_FREE) {
-		mutex_unlock(&dvbdmx->mutex);
-		return -EINVAL;
-	}
-#ifndef NOBUFS
-	vfree(dvbdmxfeed->buffer);
-	dvbdmxfeed->buffer = NULL;
-#endif
-	dvbdmxfeed->state = DMX_STATE_FREE;
-
-	dvb_demux_feed_del(dvbdmxfeed);
-
-	dvbdmxfeed->pid = 0xffff;
-
-	mutex_unlock(&dvbdmx->mutex);
-	return 0;
-}
-
-/******************************************************************************
- * dvb_demux kernel data API calls
- ******************************************************************************/
-
-static int dvbdmx_open(struct dmx_demux *demux)
-{
-	struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
-
-	if (dvbdemux->users >= MAX_DVB_DEMUX_USERS)
-		return -EUSERS;
-
-	dvbdemux->users++;
-	return 0;
-}
-
-static int dvbdmx_close(struct dmx_demux *demux)
-{
-	struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
-
-	if (dvbdemux->users == 0)
-		return -ENODEV;
-
-	dvbdemux->users--;
-	//FIXME: release any unneeded resources if users==0
-	return 0;
-}
-
-static int dvbdmx_write(struct dmx_demux *demux, const char __user *buf, size_t count)
-{
-	struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
-	void *p;
-
-	if ((!demux->frontend) || (demux->frontend->source != DMX_MEMORY_FE))
-		return -EINVAL;
-
-	p = memdup_user(buf, count);
-	if (IS_ERR(p))
-		return PTR_ERR(p);
-	if (mutex_lock_interruptible(&dvbdemux->mutex)) {
-		kfree(p);
-		return -ERESTARTSYS;
-	}
-	dvb_dmx_swfilter(dvbdemux, p, count);
-	kfree(p);
-	mutex_unlock(&dvbdemux->mutex);
-
-	if (signal_pending(current))
-		return -EINTR;
-	return count;
-}
-
-static int dvbdmx_add_frontend(struct dmx_demux *demux,
-			       struct dmx_frontend *frontend)
-{
-	struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
-	struct list_head *head = &dvbdemux->frontend_list;
-
-	list_add(&(frontend->connectivity_list), head);
-
-	return 0;
-}
-
-static int dvbdmx_remove_frontend(struct dmx_demux *demux,
-				  struct dmx_frontend *frontend)
-{
-	struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
-	struct list_head *pos, *n, *head = &dvbdemux->frontend_list;
-
-	list_for_each_safe(pos, n, head) {
-		if (DMX_FE_ENTRY(pos) == frontend) {
-			list_del(pos);
-			return 0;
-		}
-	}
-
-	return -ENODEV;
-}
-
-static struct list_head *dvbdmx_get_frontends(struct dmx_demux *demux)
-{
-	struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
-
-	if (list_empty(&dvbdemux->frontend_list))
-		return NULL;
-
-	return &dvbdemux->frontend_list;
-}
-
-static int dvbdmx_connect_frontend(struct dmx_demux *demux,
-				   struct dmx_frontend *frontend)
-{
-	struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
-
-	if (demux->frontend)
-		return -EINVAL;
-
-	mutex_lock(&dvbdemux->mutex);
-
-	demux->frontend = frontend;
-	mutex_unlock(&dvbdemux->mutex);
-	return 0;
-}
-
-static int dvbdmx_disconnect_frontend(struct dmx_demux *demux)
-{
-	struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
-
-	mutex_lock(&dvbdemux->mutex);
-
-	demux->frontend = NULL;
-	mutex_unlock(&dvbdemux->mutex);
-	return 0;
-}
-
-static int dvbdmx_get_pes_pids(struct dmx_demux *demux, u16 * pids)
-{
-	struct dvb_demux *dvbdemux = (struct dvb_demux *)demux;
-
-	memcpy(pids, dvbdemux->pids, 5 * sizeof(u16));
-	return 0;
-}
-
-int dvb_dmx_init(struct dvb_demux *dvbdemux)
-{
-	int i;
-	struct dmx_demux *dmx = &dvbdemux->dmx;
-
-	dvbdemux->cnt_storage = NULL;
-	dvbdemux->users = 0;
-	dvbdemux->filter = vmalloc(dvbdemux->filternum * sizeof(struct dvb_demux_filter));
-
-	if (!dvbdemux->filter)
-		return -ENOMEM;
-
-	dvbdemux->feed = vmalloc(dvbdemux->feednum * sizeof(struct dvb_demux_feed));
-	if (!dvbdemux->feed) {
-		vfree(dvbdemux->filter);
-		dvbdemux->filter = NULL;
-		return -ENOMEM;
-	}
-	for (i = 0; i < dvbdemux->filternum; i++) {
-		dvbdemux->filter[i].state = DMX_STATE_FREE;
-		dvbdemux->filter[i].index = i;
-	}
-	for (i = 0; i < dvbdemux->feednum; i++) {
-		dvbdemux->feed[i].state = DMX_STATE_FREE;
-		dvbdemux->feed[i].index = i;
-	}
-
-	dvbdemux->cnt_storage = vmalloc(MAX_PID + 1);
-	if (!dvbdemux->cnt_storage)
-		printk(KERN_WARNING "Couldn't allocate memory for TS/TEI check. Disabling it\n");
-
-	INIT_LIST_HEAD(&dvbdemux->frontend_list);
-
-	for (i = 0; i < DMX_TS_PES_OTHER; i++) {
-		dvbdemux->pesfilter[i] = NULL;
-		dvbdemux->pids[i] = 0xffff;
-	}
-
-	INIT_LIST_HEAD(&dvbdemux->feed_list);
-
-	dvbdemux->playing = 0;
-	dvbdemux->recording = 0;
-	dvbdemux->tsbufp = 0;
-
-	if (!dvbdemux->check_crc32)
-		dvbdemux->check_crc32 = dvb_dmx_crc32;
-
-	if (!dvbdemux->memcopy)
-		dvbdemux->memcopy = dvb_dmx_memcopy;
-
-	dmx->frontend = NULL;
-	dmx->priv = dvbdemux;
-	dmx->open = dvbdmx_open;
-	dmx->close = dvbdmx_close;
-	dmx->write = dvbdmx_write;
-	dmx->allocate_ts_feed = dvbdmx_allocate_ts_feed;
-	dmx->release_ts_feed = dvbdmx_release_ts_feed;
-	dmx->allocate_section_feed = dvbdmx_allocate_section_feed;
-	dmx->release_section_feed = dvbdmx_release_section_feed;
-
-	dmx->add_frontend = dvbdmx_add_frontend;
-	dmx->remove_frontend = dvbdmx_remove_frontend;
-	dmx->get_frontends = dvbdmx_get_frontends;
-	dmx->connect_frontend = dvbdmx_connect_frontend;
-	dmx->disconnect_frontend = dvbdmx_disconnect_frontend;
-	dmx->get_pes_pids = dvbdmx_get_pes_pids;
-
-	mutex_init(&dvbdemux->mutex);
-	spin_lock_init(&dvbdemux->lock);
-
-	return 0;
-}
-
-EXPORT_SYMBOL(dvb_dmx_init);
-
-void dvb_dmx_release(struct dvb_demux *dvbdemux)
-{
-	vfree(dvbdemux->cnt_storage);
-	vfree(dvbdemux->filter);
-	vfree(dvbdemux->feed);
-}
-
-EXPORT_SYMBOL(dvb_dmx_release);