[PATCH] update the dvb core

drivers/media/dvb/dvb-core/Makefile

@@ -3,6 +3,6 @@
 #
 
 dvb-core-objs = dvbdev.o dmxdev.o dvb_demux.o dvb_filter.o \
-		dvb_frontend.o dvb_i2c.o dvb_net.o dvb_ksyms.o
+		dvb_frontend.o dvb_i2c.o dvb_net.o dvb_ksyms.o dvb_ringbuffer.o
 
 obj-$(CONFIG_DVB_CORE) += dvb-core.o

drivers/media/dvb/dvb-core/Makefile.lib

+obj-$(CONFIG_DVB_CORE)		+= crc32.o

drivers/media/dvb/dvb-core/demux.h

@@ -144,6 +144,14 @@ struct dmx_section_feed_s {
         int is_filtering; /* Set to non-zero when filtering in progress */ 
         struct dmx_demux_s* parent; /* Back-pointer */
         void* priv; /* Pointer to private data of the API client */ 
+
+        int check_crc;
+	u32 crc_val;
+
+        u8 secbuf[4096];
+        int secbufp;
+        int seclen;
+
         int (*set) (struct dmx_section_feed_s* feed, 
 		    __u16 pid, 
 		    size_t circular_buffer_size, 
@@ -162,16 +170,16 @@ typedef struct dmx_section_feed_s dmx_section_feed_t;
 /* Callback functions */ 
 /*--------------------------------------------------------------------------*/ 
 
-typedef int (*dmx_ts_cb) ( __u8 * buffer1, 
+typedef int (*dmx_ts_cb) ( const u8 * buffer1, 
 			   size_t buffer1_length,
-			   __u8 * buffer2, 
+			   const u8 * buffer2, 
 			   size_t buffer2_length,
 			   dmx_ts_feed_t* source, 
 			   dmx_success_t success); 
 
-typedef int (*dmx_section_cb) (	__u8 * buffer1,
+typedef int (*dmx_section_cb) (	const u8 * buffer1,
 				size_t buffer1_len,
-				__u8 * buffer2, 
+				const u8 * buffer2, 
 				size_t buffer2_len,
 			       	dmx_section_filter_t * source,
 			       	dmx_success_t success);
@@ -278,6 +286,9 @@ struct dmx_demux_s {
         int (*disconnect_frontend) (struct dmx_demux_s* demux); 
 
         int (*get_pes_pids) (struct dmx_demux_s* demux, __u16 *pids);
+
+        int (*get_stc) (struct dmx_demux_s* demux, unsigned int num,
+			uint64_t *stc, unsigned int *base);
 }; 
 typedef struct dmx_demux_s dmx_demux_t; 
 

drivers/media/dvb/dvb-core/dmxdev.c

@@ -24,11 +24,13 @@
 #include <linux/vmalloc.h>
 #include <linux/module.h>
 #include <linux/poll.h>
-#include <linux/videodev.h>
 #include <asm/uaccess.h>
 
 #include "dmxdev.h"
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,51)
+	#include "compat.h"
+#endif
 
 //MODULE_DESCRIPTION("");
 //MODULE_AUTHOR("Ralph Metzler, Marcus Metzler");
@@ -63,8 +65,8 @@ dvb_dmxdev_buffer_init(dmxdev_buffer_t *buffer)
 	init_waitqueue_head(&buffer->queue);
 }
 
-static inline int 
-dvb_dmxdev_buffer_write(dmxdev_buffer_t *buf, uint8_t *src, int len) 
+static inline
+int dvb_dmxdev_buffer_write(dmxdev_buffer_t *buf, const u8 *src, int len) 
 {
 	int split;
 	int free;
@@ -356,10 +358,9 @@ dvb_dmxdev_filter_timer(dmxdev_filter_t *dmxdevfilter)
 }
 
 static int 
-dvb_dmxdev_section_callback(u8 *buffer1, size_t buffer1_len,
-		      u8 *buffer2, size_t buffer2_len,
-		      dmx_section_filter_t *filter,
-		      dmx_success_t success)
+dvb_dmxdev_section_callback(const u8 *buffer1, size_t buffer1_len,
+			    const u8 *buffer2, size_t buffer2_len,
+			    dmx_section_filter_t *filter, dmx_success_t success)
 {
 	dmxdev_filter_t *dmxdevfilter=(dmxdev_filter_t *) filter->priv;
 	int ret;
@@ -394,10 +395,9 @@ dvb_dmxdev_section_callback(u8 *buffer1, size_t buffer1_len,
 }
 
 static int 
-dvb_dmxdev_ts_callback(u8 *buffer1, size_t buffer1_len,
-		 u8 *buffer2, size_t buffer2_len,
-		 dmx_ts_feed_t *feed,
-		 dmx_success_t success)
+dvb_dmxdev_ts_callback(const u8 *buffer1, size_t buffer1_len,
+		       const u8 *buffer2, size_t buffer2_len,
+		       dmx_ts_feed_t *feed, dmx_success_t success)
 {
 	dmxdev_filter_t *dmxdevfilter=(dmxdev_filter_t *) feed->priv;
 	dmxdev_buffer_t *buffer;
@@ -455,21 +455,22 @@ dvb_dmxdev_feed_stop(dmxdev_filter_t *dmxdevfilter)
 
 /* start feed associated with the specified filter */
 
-static int 
-dvb_dmxdev_feed_start(dmxdev_filter_t *dmxdevfilter)
+static
+int dvb_dmxdev_feed_start(dmxdev_filter_t *filter)
 {
-	dvb_dmxdev_filter_state_set(dmxdevfilter, DMXDEV_STATE_GO);
+	dvb_dmxdev_filter_state_set (filter, DMXDEV_STATE_GO);
 
-	switch (dmxdevfilter->type) {
+	switch (filter->type) {
 	case DMXDEV_TYPE_SEC:
-	        dmxdevfilter->feed.sec->start_filtering(dmxdevfilter->feed.sec);
+		return filter->feed.sec->start_filtering(filter->feed.sec);
 		break;
 	case DMXDEV_TYPE_PES:
-	        dmxdevfilter->feed.ts->start_filtering(dmxdevfilter->feed.ts);
+		return filter->feed.ts->start_filtering(filter->feed.ts);
 		break;
 	default:
 		return -EINVAL;
 	}
+
 	return 0;
 }
 
@@ -477,12 +478,12 @@ dvb_dmxdev_feed_start(dmxdev_filter_t *dmxdevfilter)
 /* restart section feed if it has filters left associated with it, 
    otherwise release the feed */
 
-static int 
-dvb_dmxdev_feed_restart(dmxdev_filter_t *dmxdevfilter)
+static
+int dvb_dmxdev_feed_restart(dmxdev_filter_t *filter)
 {
 	int i;
-	dmxdev_t *dmxdev=dmxdevfilter->dev;
-	uint16_t pid=dmxdevfilter->params.sec.pid;
+	dmxdev_t *dmxdev = filter->dev;
+	uint16_t pid = filter->params.sec.pid;
 	
 	for (i=0; i<dmxdev->filternum; i++) 
 		if (dmxdev->filter[i].state>=DMXDEV_STATE_GO &&
@@ -492,9 +493,7 @@ dvb_dmxdev_feed_restart(dmxdev_filter_t *dmxdevfilter)
 			return 0;
 		}
 	
-	dmxdevfilter->dev->demux->
-		release_section_feed(dmxdev->demux,
-				     dmxdevfilter->feed.sec);
+	filter->dev->demux->release_section_feed(dmxdev->demux, filter->feed.sec);
 
 	return 0;
 }
@@ -548,48 +547,48 @@ dvb_dmxdev_filter_reset(dmxdev_filter_t *dmxdevfilter)
 }
 
 static int 
-dvb_dmxdev_filter_start(dmxdev_filter_t *dmxdevfilter)
+dvb_dmxdev_filter_start(dmxdev_filter_t *filter)
 {
-	dmxdev_t *dmxdev=dmxdevfilter->dev;
+	dmxdev_t *dmxdev = filter->dev;
 	void *mem;
 	int ret, i;
 
-        if (dmxdevfilter->state<DMXDEV_STATE_SET) 
+	if (filter->state < DMXDEV_STATE_SET) 
 		return -EINVAL;
-        if (dmxdevfilter->state>=DMXDEV_STATE_GO)
-	        dvb_dmxdev_filter_stop(dmxdevfilter); 
 
-	mem=dmxdevfilter->buffer.data;
-	if (!mem) {
-                mem=vmalloc(dmxdevfilter->buffer.size);
-	        spin_lock_irq(&dmxdevfilter->dev->lock);
-		dmxdevfilter->buffer.data=mem;
-	        spin_unlock_irq(&dmxdevfilter->dev->lock);
-                if (!dmxdevfilter->buffer.data)
+	if (filter->state >= DMXDEV_STATE_GO)
+		dvb_dmxdev_filter_stop(filter); 
+
+	if (!(mem = filter->buffer.data)) {
+		mem = vmalloc(filter->buffer.size);
+		spin_lock_irq(&filter->dev->lock);
+		filter->buffer.data=mem;
+		spin_unlock_irq(&filter->dev->lock);
+		if (!filter->buffer.data)
 			return -ENOMEM;
 	}
 
-	dmxdevfilter->buffer.pwrite=dmxdevfilter->buffer.pread=0;
+	filter->buffer.pwrite = filter->buffer.pread = 0;
 
-	switch (dmxdevfilter->type) {
+	switch (filter->type) {
 	case DMXDEV_TYPE_SEC:
 	{
-		struct dmx_sct_filter_params *para=&dmxdevfilter->params.sec;
-		dmx_section_filter_t **secfilter=&dmxdevfilter->filter.sec;
-		dmx_section_feed_t **secfeed=&dmxdevfilter->feed.sec;
+		struct dmx_sct_filter_params *para=&filter->params.sec;
+		dmx_section_filter_t **secfilter=&filter->filter.sec;
+		dmx_section_feed_t **secfeed=&filter->feed.sec;
 
 		*secfilter=0;
 		*secfeed=0;
 
 		/* find active filter/feed with same PID */
-		for (i=0; i<dmxdev->filternum; i++) 
-			if (dmxdev->filter[i].state>=DMXDEV_STATE_GO &&
-			    dmxdev->filter[i].pid==para->pid) {
-				if (dmxdev->filter[i].type!=DMXDEV_TYPE_SEC)
-					return -EBUSY;
-				*secfeed=dmxdev->filter[i].feed.sec;
+		for (i=0; i<dmxdev->filternum; i++) {
+			if (dmxdev->filter[i].state >= DMXDEV_STATE_GO &&
+			    dmxdev->filter[i].pid == para->pid && 
+			    dmxdev->filter[i].type == DMXDEV_TYPE_SEC) {
+				*secfeed = dmxdev->filter[i].feed.sec;
 				break;
 			}
+		}
 
 		/* if no feed found, try to allocate new one */ 
 		if (!*secfeed) {
@@ -608,22 +607,23 @@ dvb_dmxdev_filter_start(dmxdev_filter_t *dmxdevfilter)
 			if (ret<0) {
 				printk ("DVB (%s): could not set feed\n",
 					__FUNCTION__);
-				dvb_dmxdev_feed_restart(dmxdevfilter);
+				dvb_dmxdev_feed_restart(filter);
 				return ret;
 			}
+		} else {
+			dvb_dmxdev_feed_stop(filter);
 		}
-	        else 
-			dvb_dmxdev_feed_stop(dmxdevfilter);
 			
 		ret=(*secfeed)->allocate_filter(*secfeed, secfilter);
-		if (ret<0) {
-			dvb_dmxdev_feed_restart(dmxdevfilter);
-			dmxdevfilter->feed.sec->start_filtering(*secfeed);
+
+		if (ret < 0) {
+			dvb_dmxdev_feed_restart(filter);
+			filter->feed.sec->start_filtering(*secfeed);
 			dprintk ("could not get filter\n");
 			return ret;
 		}
 
-		(*secfilter)->priv=(void *) dmxdevfilter;
+		(*secfilter)->priv = filter;
 
 		memcpy(&((*secfilter)->filter_value[3]), 
 		       &(para->filter.filter[1]), DMX_FILTER_SIZE-1);
@@ -638,23 +638,28 @@ dvb_dmxdev_filter_start(dmxdev_filter_t *dmxdevfilter)
 		(*secfilter)->filter_mask[1]=0;
 		(*secfilter)->filter_mask[2]=0;
 		
-	        dmxdevfilter->todo=0;
-	        dmxdevfilter->feed.sec->start_filtering(dmxdevfilter->feed.sec);
-	        dvb_dmxdev_filter_timer(dmxdevfilter);
+		filter->todo = 0;
+
+		ret = filter->feed.sec->start_filtering (filter->feed.sec);
+
+		if (ret < 0)
+			return ret;
+
+		dvb_dmxdev_filter_timer(filter);
 		break;
 	}
 
 	case DMXDEV_TYPE_PES: 
 	{
 		struct timespec timeout = { 0 };
-		struct dmx_pes_filter_params *para=&dmxdevfilter->params.pes;
+		struct dmx_pes_filter_params *para = &filter->params.pes;
 		dmx_output_t otype;
 		int ret;
 		int ts_type;
 		dmx_ts_pes_t ts_pes;
-		dmx_ts_feed_t **tsfeed=&dmxdevfilter->feed.ts;
+		dmx_ts_feed_t **tsfeed = &filter->feed.ts;
 		
-		dmxdevfilter->feed.ts=0;
+		filter->feed.ts = 0;
 		otype=para->output;
 		
 		ts_pes=(dmx_ts_pes_t) para->pes_type;
@@ -664,11 +669,11 @@ dvb_dmxdev_filter_start(dmxdev_filter_t *dmxdevfilter)
 		else
 			ts_type=0;
 		
-		if (otype==DMX_OUT_TS_TAP) 
-			ts_type|=TS_PACKET;
+		if (otype == DMX_OUT_TS_TAP) 
+			ts_type |= TS_PACKET;
 		
-		if (otype==DMX_OUT_TAP) 
-			ts_type|=TS_PAYLOAD_ONLY|TS_PACKET;
+		if (otype == DMX_OUT_TAP) 
+			ts_type |= TS_PAYLOAD_ONLY|TS_PACKET;
 		
 		ret=dmxdev->demux->allocate_ts_feed(dmxdev->demux, 
 						    tsfeed, 
@@ -676,19 +681,28 @@ dvb_dmxdev_filter_start(dmxdev_filter_t *dmxdevfilter)
 		if (ret<0) 
 			return ret;
 
-		(*tsfeed)->priv=(void *) dmxdevfilter;
-		ret=(*tsfeed)->set(*tsfeed, para->pid, ts_type, ts_pes, 188, 32768, 0, timeout);
-		if (ret<0) {
+		(*tsfeed)->priv = (void *) filter;
+
+		ret = (*tsfeed)->set(*tsfeed, para->pid, ts_type, ts_pes,
+				     188, 32768, 0, timeout);
+
+		if (ret < 0) {
 			dmxdev->demux->release_ts_feed(dmxdev->demux, *tsfeed);
 			return ret;
 		}
-	        dmxdevfilter->feed.ts->start_filtering(dmxdevfilter->feed.ts);
+
+		ret = filter->feed.ts->start_filtering(filter->feed.ts);
+
+		if (ret < 0)
+			return ret;
+
 		break;
 	}
 	default:
 		return -EINVAL;
 	}
-	dvb_dmxdev_filter_state_set(dmxdevfilter, DMXDEV_STATE_GO);
+
+	dvb_dmxdev_filter_state_set(filter, DMXDEV_STATE_GO);
 	return 0;
 }
 
@@ -701,16 +715,21 @@ static int dvb_demux_open(struct inode *inode, struct file *file)
 
 	if (!dmxdev->filter)
 		return -EINVAL;
+
 	if (down_interruptible(&dmxdev->mutex))
 		return -ERESTARTSYS;
+
 	for (i=0; i<dmxdev->filternum; i++)
 		if (dmxdev->filter[i].state==DMXDEV_STATE_FREE)
 			break;
+
 	if (i==dmxdev->filternum) {
 		up(&dmxdev->mutex);
 		return -EMFILE;
 	}
+
 	dmxdevfilter=&dmxdev->filter[i];
+	sema_init(&dmxdevfilter->mutex, 1);
 	dmxdevfilter->dvbdev=dmxdev->dvbdev;
 	file->private_data=dmxdevfilter;
 
@@ -724,12 +743,18 @@ static int dvb_demux_open(struct inode *inode, struct file *file)
 	return 0;
 }
 
-int 
-dvb_dmxdev_filter_free(dmxdev_t *dmxdev, dmxdev_filter_t *dmxdevfilter)
+
+static
+int dvb_dmxdev_filter_free(dmxdev_t *dmxdev, dmxdev_filter_t *dmxdevfilter)
 {
 	if (down_interruptible(&dmxdev->mutex))
 		return -ERESTARTSYS;
 
+	if (down_interruptible(&dmxdevfilter->mutex)) {
+		up(&dmxdev->mutex);
+		return -ERESTARTSYS;
+	}
+	
 	dvb_dmxdev_filter_stop(dmxdevfilter);
 	dvb_dmxdev_filter_reset(dmxdevfilter);
 	
@@ -741,8 +766,10 @@ dvb_dmxdev_filter_free(dmxdev_t *dmxdev, dmxdev_filter_t *dmxdevfilter)
 		spin_unlock_irq(&dmxdev->lock);
 		vfree(mem);
 	}
+
 	dvb_dmxdev_filter_state_set(dmxdevfilter, DMXDEV_STATE_FREE);
 	wake_up(&dmxdevfilter->buffer.queue);
+	up(&dmxdevfilter->mutex);
 	up(&dmxdev->mutex);
 	return 0;
 }
@@ -845,18 +872,19 @@ ssize_t
 dvb_demux_read(struct file *file, char *buf, size_t count, loff_t *ppos)
 {
 	dmxdev_filter_t *dmxdevfilter=dvb_dmxdev_file_to_filter(file);
-	//dmxdev_t *dmxdev=dmxdevfilter->dev;
 	int ret=0;
 
-	// semaphore should not be necessary (I hope ...)
-        //down(&dmxdev->mutex);
+	if (down_interruptible(&dmxdevfilter->mutex))
+		return -ERESTARTSYS;
+
 	if (dmxdevfilter->type==DMXDEV_TYPE_SEC)
 		ret=dvb_dmxdev_read_sec(dmxdevfilter, file, buf, count, ppos);
 	else
 		ret=dvb_dmxdev_buffer_read(&dmxdevfilter->buffer, 
 				     file->f_flags&O_NONBLOCK, 
 				     buf, count, ppos);
-        //up(&dmxdev->mutex);
+
+	up(&dmxdevfilter->mutex);
 	return ret;
 }
 
@@ -874,28 +902,53 @@ static int dvb_demux_do_ioctl(struct inode *inode, struct file *file,
 
 	switch (cmd) {
 	case DMX_START:
+		if (down_interruptible(&dmxdevfilter->mutex)) {
+			up(&dmxdev->mutex);
+			return -ERESTARTSYS;
+		}
 		if (dmxdevfilter->state<DMXDEV_STATE_SET)
-		        ret=-EINVAL;
+			ret = -EINVAL;
 		else
-		        ret=dvb_dmxdev_filter_start(dmxdevfilter);
+			ret = dvb_dmxdev_filter_start(dmxdevfilter);
+		up(&dmxdevfilter->mutex);
 		break;
 
 	case DMX_STOP:
+		if (down_interruptible(&dmxdevfilter->mutex)) {
+			up(&dmxdev->mutex);
+			return -ERESTARTSYS;
+		}
 		ret=dvb_dmxdev_filter_stop(dmxdevfilter);
+		up(&dmxdevfilter->mutex);
 		break;
 
 	case DMX_SET_FILTER: 
-		ret=dvb_dmxdev_filter_set(dmxdev, dmxdevfilter, 
+		if (down_interruptible(&dmxdevfilter->mutex)) {
+			up(&dmxdev->mutex);
+			return -ERESTARTSYS;
+		}
+		ret = dvb_dmxdev_filter_set(dmxdev, dmxdevfilter, 
 				    (struct dmx_sct_filter_params *)parg);
+		up(&dmxdevfilter->mutex);
 		break;
 
 	case DMX_SET_PES_FILTER: 
+		if (down_interruptible(&dmxdevfilter->mutex)) {
+			up(&dmxdev->mutex);
+			return -ERESTARTSYS;
+		}
 		ret=dvb_dmxdev_pes_filter_set(dmxdev, dmxdevfilter, 
 					       (struct dmx_pes_filter_params *)parg);
+		up(&dmxdevfilter->mutex);
 		break;
 
 	case DMX_SET_BUFFER_SIZE: 
+		if (down_interruptible(&dmxdevfilter->mutex)) {
+			up(&dmxdev->mutex);
+			return -ERESTARTSYS;
+		}
 		ret=dvb_dmxdev_set_buffer_size(dmxdevfilter, arg);
+		up(&dmxdevfilter->mutex);
 		break;
 	
 	case DMX_GET_EVENT: 
@@ -909,6 +962,17 @@ static int dvb_demux_do_ioctl(struct inode *inode, struct file *file,
 		dmxdev->demux->get_pes_pids(dmxdev->demux, (uint16_t *)parg);
 		break;
 
+	case DMX_GET_STC:
+		if (!dmxdev->demux->get_stc) {
+		        ret=-EINVAL;
+			break;
+		}
+		ret = dmxdev->demux->get_stc(dmxdev->demux,
+				((struct dmx_stc *)parg)->num,
+				&((struct dmx_stc *)parg)->stc,
+				&((struct dmx_stc *)parg)->base);
+		break;
+
 	default:
 		ret=-EINVAL;
 	}
@@ -919,47 +983,40 @@ static int dvb_demux_do_ioctl(struct inode *inode, struct file *file,
 static int dvb_demux_ioctl(struct inode *inode, struct file *file,
 			   unsigned int cmd, unsigned long arg)
 {
-	return video_usercopy(inode, file, cmd, arg, dvb_demux_do_ioctl);
+	return dvb_usercopy(inode, file, cmd, arg, dvb_demux_do_ioctl);
 }
 
 
-static unsigned int dvb_demux_poll(struct file *file, poll_table *wait)
+static
+unsigned int dvb_demux_poll (struct file *file, poll_table *wait)
 {
-        dmxdev_filter_t *dmxdevfilter=dvb_dmxdev_file_to_filter(file);
+	dmxdev_filter_t *dmxdevfilter = dvb_dmxdev_file_to_filter(file);
+	unsigned int mask = 0;
 
 	if (!dmxdevfilter)
 		return -EINVAL;
 
-	if (dmxdevfilter->state==DMXDEV_STATE_FREE)
-	        return 0;
-
-	if (dmxdevfilter->buffer.error)
-	        return (POLLIN | POLLRDNORM | POLLPRI | POLLERR);
-
-	if (dmxdevfilter->buffer.pread!=dmxdevfilter->buffer.pwrite)
-	        return (POLLIN | POLLRDNORM | POLLPRI);
-
-	if (dmxdevfilter->state!=DMXDEV_STATE_GO)
-	        return 0;
-
 	poll_wait(file, &dmxdevfilter->buffer.queue, wait);
 
-	if (dmxdevfilter->state==DMXDEV_STATE_FREE)
+	if (dmxdevfilter->state != DMXDEV_STATE_GO &&
+	    dmxdevfilter->state != DMXDEV_STATE_DONE)
 		return 0;
 
 	if (dmxdevfilter->buffer.error)
-	        return (POLLIN | POLLRDNORM | POLLPRI | POLLERR);
+		mask |= (POLLIN | POLLRDNORM | POLLPRI | POLLERR);
 
-	if (dmxdevfilter->buffer.pread!=dmxdevfilter->buffer.pwrite)
-	        return (POLLIN | POLLRDNORM | POLLPRI);
+	if (dmxdevfilter->buffer.pread != dmxdevfilter->buffer.pwrite)
+		mask |= (POLLIN | POLLRDNORM | POLLPRI);
 
-	return 0;
+	return mask;
 }
 
-static int dvb_demux_release(struct inode *inode, struct file *file)
+
+static
+int dvb_demux_release(struct inode *inode, struct file *file)
 {
-        dmxdev_filter_t *dmxdevfilter=dvb_dmxdev_file_to_filter(file);
-	dmxdev_t *dmxdev=dmxdevfilter->dev;
+	dmxdev_filter_t *dmxdevfilter = dvb_dmxdev_file_to_filter(file);
+	dmxdev_t *dmxdev = dmxdevfilter->dev;
 
 	return dvb_dmxdev_filter_free(dmxdev, dmxdevfilter);
 }
@@ -1007,45 +1064,43 @@ static int dvb_dvr_do_ioctl(struct inode *inode, struct file *file,
 static int dvb_dvr_ioctl(struct inode *inode, struct file *file,
 			 unsigned int cmd, unsigned long arg)
 {
-	return video_usercopy(inode, file, cmd, arg, dvb_dvr_do_ioctl);
+	return dvb_usercopy(inode, file, cmd, arg, dvb_dvr_do_ioctl);
 }
 
 
-static unsigned int dvb_dvr_poll(struct file *file, poll_table *wait)
+static
+unsigned int dvb_dvr_poll (struct file *file, poll_table *wait)
 {
-	struct dvb_device *dvbdev=(struct dvb_device *) file->private_data;
-	dmxdev_t *dmxdev=(dmxdev_t *) dvbdev->priv;
+	struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
+	dmxdev_t *dmxdev = (dmxdev_t *) dvbdev->priv;
+	unsigned int mask = 0;
 
 	dprintk ("function : %s\n", __FUNCTION__);
 
-        if ((file->f_flags&O_ACCMODE)==O_RDONLY) {
-		if (dmxdev->dvr_buffer.error)
-			return (POLLIN | POLLRDNORM | POLLPRI | POLLERR);
-
-		if (dmxdev->dvr_buffer.pread!=dmxdev->dvr_buffer.pwrite)
-			return (POLLIN | POLLRDNORM | POLLPRI);
-		
 	poll_wait(file, &dmxdev->dvr_buffer.queue, wait);
 
+	if ((file->f_flags&O_ACCMODE) == O_RDONLY) {
 		if (dmxdev->dvr_buffer.error)
-			return (POLLIN | POLLRDNORM | POLLPRI | POLLERR);
+			mask |= (POLLIN | POLLRDNORM | POLLPRI | POLLERR);
 
 		if (dmxdev->dvr_buffer.pread!=dmxdev->dvr_buffer.pwrite)
-			return (POLLIN | POLLRDNORM | POLLPRI);
-		
-		return 0;
+			mask |= (POLLIN | POLLRDNORM | POLLPRI);
 	} else 
-	        return (POLLOUT | POLLWRNORM | POLLPRI);
+		mask |= (POLLOUT | POLLWRNORM | POLLPRI);
+
+	return mask;
 }
 
-static struct file_operations dvb_dvr_fops = {
+
+static
+struct file_operations dvb_dvr_fops = {
 	.owner		= THIS_MODULE,
 	.read		= dvb_dvr_read,
 	.write		= dvb_dvr_write,
 	.ioctl		= dvb_dvr_ioctl,
 	.open		= dvb_dvr_open,
 	.release	= dvb_dvr_release,
-	.poll		=dvb_dvr_poll,
+	.poll		= dvb_dvr_poll,
 };
 
 static struct dvb_device dvbdev_dvr = {
@@ -1088,7 +1143,8 @@ dvb_dmxdev_init(dmxdev_t *dmxdev, struct dvb_adapter *dvb_adapter)
 	dvb_register_device(dvb_adapter, &dmxdev->dvr_dvbdev, &dvbdev_dvr, dmxdev, DVB_DEVICE_DVR);
 
 	dvb_dmxdev_buffer_init(&dmxdev->dvr_buffer);
-	MOD_INC_USE_COUNT;
+	/* fixme: is this correct? */
+	try_module_get(THIS_MODULE);
 	return 0;
 }
 
@@ -1106,7 +1162,8 @@ dvb_dmxdev_release(dmxdev_t *dmxdev)
 		dmxdev->dvr=0;
 	}
 	dmxdev->demux->close(dmxdev->demux);
-	MOD_DEC_USE_COUNT;
+	/* fixme: is this correct? */
+	module_put(THIS_MODULE);
 }
 
 

drivers/media/dvb/dvb-core/dmxdev.h

@@ -85,6 +85,8 @@ typedef struct dmxdev_filter_s {
         struct dmxdev_s *dev;
         dmxdev_buffer_t buffer;
 
+	struct semaphore mutex;
+
         // only for sections
         struct timer_list timer;
         int todo;

drivers/media/dvb/dvb-core/dvb_demux.c

@@ -27,27 +27,36 @@
 #include <linux/version.h>
 #include <asm/uaccess.h>
 
-#include "compat.h"
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,51)
+	#include "compat.h"
+#else
+	#include <linux/crc32.h>
+#endif
+
 #include "dvb_demux.h"
 
 #define NOBUFS  
 
 LIST_HEAD(dmx_muxs);
 
+
 int dmx_register_demux(dmx_demux_t *demux) 
 {
-	struct list_head *pos, *head=&dmx_muxs;
+	struct list_head *pos;
 	
 	if (!(demux->id && demux->vendor && demux->model)) 
 		return -EINVAL;
-	list_for_each(pos, head) 
-	{
+
+	list_for_each(pos, &dmx_muxs) {
 		if (!strcmp(DMX_DIR_ENTRY(pos)->id, demux->id))
 			return -EEXIST;
 	}
-	demux->users=0;
-	list_add(&(demux->reg_list), head);
-	MOD_INC_USE_COUNT;
+
+	demux->users = 0;
+	list_add(&demux->reg_list, &dmx_muxs);
+	/* fixme: is this correct? */
+	try_module_get(THIS_MODULE);
+
 	return 0;
 }
 
@@ -55,17 +64,17 @@ int dmx_unregister_demux(dmx_demux_t* demux)
 {
 	struct list_head *pos, *n, *head=&dmx_muxs;
 
-	list_for_each_safe (pos, n, head) 
-	{
-	        if (DMX_DIR_ENTRY(pos)==demux) 
-		{
+	list_for_each_safe (pos, n, head) {
+		if (DMX_DIR_ENTRY(pos) == demux) {
 			if (demux->users>0)
 				return -EINVAL;
 			list_del(pos);
-		        MOD_DEC_USE_COUNT;
+			/* fixme: is this correct? */
+			module_put(THIS_MODULE);
 			return 0;
 		}
 	}
+
 	return -ENODEV;
 }
 
@@ -82,20 +91,23 @@ struct list_head *dmx_get_demuxes(void)
  * static inlined helper functions
  ******************************************************************************/
 
-static inline u16 
-section_length(const u8 *buf)
+
+static inline
+u16 section_length(const u8 *buf)
 {
 	return 3+((buf[1]&0x0f)<<8)+buf[2];
 }
 
-static inline u16 
-ts_pid(const u8 *buf)
+
+static inline
+u16 ts_pid(const u8 *buf)
 {
 	return ((buf[1]&0x1f)<<8)+buf[2];
 }
 
-static inline int
-payload(const u8 *tsp)
+
+static inline
+int payload(const u8 *tsp)
 {
 	if (!(tsp[3]&0x10)) // no payload?
 		return 0;
@@ -109,71 +121,30 @@ payload(const u8 *tsp)
 }
 
 
-static u32 
-dvb_crc_table[256] = {
-	0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b,
-	0x1a864db2, 0x1e475005, 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61,
-	0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd, 0x4c11db70, 0x48d0c6c7,
-	0x4593e01e, 0x4152fda9, 0x5f15adac, 0x5bd4b01b, 0x569796c2, 0x52568b75,
-	0x6a1936c8, 0x6ed82b7f, 0x639b0da6, 0x675a1011, 0x791d4014, 0x7ddc5da3,
-	0x709f7b7a, 0x745e66cd, 0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039,
-	0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5, 0xbe2b5b58, 0xbaea46ef,
-	0xb7a96036, 0xb3687d81, 0xad2f2d84, 0xa9ee3033, 0xa4ad16ea, 0xa06c0b5d,
-	0xd4326d90, 0xd0f37027, 0xddb056fe, 0xd9714b49, 0xc7361b4c, 0xc3f706fb,
-	0xceb42022, 0xca753d95, 0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1,
-	0xe13ef6f4, 0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d, 0x34867077, 0x30476dc0,
-	0x3d044b19, 0x39c556ae, 0x278206ab, 0x23431b1c, 0x2e003dc5, 0x2ac12072,
-	0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16, 0x018aeb13, 0x054bf6a4,
-	0x0808d07d, 0x0cc9cdca, 0x7897ab07, 0x7c56b6b0, 0x71159069, 0x75d48dde,
-	0x6b93dddb, 0x6f52c06c, 0x6211e6b5, 0x66d0fb02, 0x5e9f46bf, 0x5a5e5b08,
-	0x571d7dd1, 0x53dc6066, 0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba,
-	0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e, 0xbfa1b04b, 0xbb60adfc,
-	0xb6238b25, 0xb2e29692, 0x8aad2b2f, 0x8e6c3698, 0x832f1041, 0x87ee0df6,
-	0x99a95df3, 0x9d684044, 0x902b669d, 0x94ea7b2a, 0xe0b41de7, 0xe4750050,
-	0xe9362689, 0xedf73b3e, 0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2,
-	0xc6bcf05f, 0xc27dede8, 0xcf3ecb31, 0xcbffd686, 0xd5b88683, 0xd1799b34,
-	0xdc3abded, 0xd8fba05a, 0x690ce0ee, 0x6dcdfd59, 0x608edb80, 0x644fc637,
-	0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb, 0x4f040d56, 0x4bc510e1,
-	0x46863638, 0x42472b8f, 0x5c007b8a, 0x58c1663d, 0x558240e4, 0x51435d53,
-	0x251d3b9e, 0x21dc2629, 0x2c9f00f0, 0x285e1d47, 0x36194d42, 0x32d850f5,
-	0x3f9b762c, 0x3b5a6b9b, 0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff,
-	0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623, 0xf12f560e, 0xf5ee4bb9,
-	0xf8ad6d60, 0xfc6c70d7, 0xe22b20d2, 0xe6ea3d65, 0xeba91bbc, 0xef68060b,
-	0xd727bbb6, 0xd3e6a601, 0xdea580d8, 0xda649d6f, 0xc423cd6a, 0xc0e2d0dd,
-	0xcda1f604, 0xc960ebb3, 0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7,
-	0xae3afba2, 0xaafbe615, 0xa7b8c0cc, 0xa379dd7b, 0x9b3660c6, 0x9ff77d71,
-	0x92b45ba8, 0x9675461f, 0x8832161a, 0x8cf30bad, 0x81b02d74, 0x857130c3,
-	0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640, 0x4e8ee645, 0x4a4ffbf2,
-	0x470cdd2b, 0x43cdc09c, 0x7b827d21, 0x7f436096, 0x7200464f, 0x76c15bf8,
-	0x68860bfd, 0x6c47164a, 0x61043093, 0x65c52d24, 0x119b4be9, 0x155a565e,
-	0x18197087, 0x1cd86d30, 0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec,
-	0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088, 0x2497d08d, 0x2056cd3a,
-	0x2d15ebe3, 0x29d4f654, 0xc5a92679, 0xc1683bce, 0xcc2b1d17, 0xc8ea00a0,
-	0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb, 0xdbee767c, 0xe3a1cbc1, 0xe760d676,
-	0xea23f0af, 0xeee2ed18, 0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4,
-	0x89b8fd09, 0x8d79e0be, 0x803ac667, 0x84fbdbd0, 0x9abc8bd5, 0x9e7d9662,
-	0x933eb0bb, 0x97ffad0c, 0xafb010b1, 0xab710d06, 0xa6322bdf, 0xa2f33668,
-	0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4};
-
-u32 dvb_crc32(u8 *data, int len)
+void dvb_set_crc32(u8 *data, int length)
 {
-	int i;
-	u32 crc = 0xffffffff;
+	u32 crc;
 
-	for (i=0; i<len; i++)
-                crc = (crc << 8) ^ dvb_crc_table[((crc >> 24) ^ *data++) & 0xff];
-	return crc;
+	crc = crc32_le(~0, data, length);
+
+	data[length]   = (crc >> 24) & 0xff;
+	data[length+1] = (crc >> 16) & 0xff;
+	data[length+2] = (crc >>  8) & 0xff;
+	data[length+3] = (crc)       & 0xff;
 }
 
-void dvb_set_crc32(u8 *data, int length)
+
+static
+u32 dvb_dmx_crc32 (struct dvb_demux_feed *f, const u8 *src, size_t len)
 {
-        u32 crc;
+	return (f->feed.sec.crc_val = crc32_le (f->feed.sec.crc_val, src, len));
+}
+
 
-        crc=dvb_crc32(data,length);
-        data[length]   = (crc>>24)&0xff;
-        data[length+1] = (crc>>16)&0xff;
-        data[length+2] = (crc>>8)&0xff;
-        data[length+3] = (crc)&0xff;
+static
+void dvb_dmx_memcopy (struct dvb_demux_feed *f, u8 *d, const u8 *s, size_t len)
+{
+	memcpy (d, s, len);
 }
 
 
@@ -181,16 +152,19 @@ void dvb_set_crc32(u8 *data, int length)
  * Software filter functions
  ******************************************************************************/
 
-static inline int
-dvb_dmx_swfilter_payload(struct dvb_demux_feed *dvbdmxfeed, const u8 *buf) 
+static inline
+int dvb_dmx_swfilter_payload (struct dvb_demux_feed *feed, const u8 *buf) 
 {
-        int p, count;
+	int count = payload(buf);
+	int p;
 	//int ccok;
 	//u8 cc;
 
-        if (!(count=payload(buf)))
+	if (count == 0)
 		return -1;
-        p=188-count;
+
+	p = 188-count;
+
 	/*
 	cc=buf[3]&0x0f;
 	ccok=((dvbdmxfeed->cc+1)&0x0f)==cc ? 1 : 0;
@@ -198,178 +172,223 @@ dvb_dmx_swfilter_payload(struct dvb_demux_feed *dvbdmxfeed, const u8 *buf)
 	if (!ccok)
 		printk("missed packet!\n");
 	*/
-        if (buf[1]&0x40)  // PUSI ?
-                dvbdmxfeed->peslen=0xfffa;
-        dvbdmxfeed->peslen+=count;
 
-        return dvbdmxfeed->cb.ts((u8 *)&buf[p], count, 0, 0, 
-                                 &dvbdmxfeed->feed.ts, DMX_OK); 
+	if (buf[1] & 0x40)  // PUSI ?
+		feed->peslen = 0xfffa;
+
+	feed->peslen += count;
+
+	return feed->cb.ts (&buf[p], count, 0, 0, &feed->feed.ts, DMX_OK); 
 }
 
 
-static int
-dvb_dmx_swfilter_sectionfilter(struct dvb_demux_feed *dvbdmxfeed, 
+static
+int dvb_dmx_swfilter_sectionfilter (struct dvb_demux_feed *feed, 
 				    struct dvb_demux_filter *f)
 {
-        dmx_section_filter_t *filter=&f->filter;
+	u8 neq = 0;
 	int i;
-	u8 xor, neq=0;
 
 	for (i=0; i<DVB_DEMUX_MASK_MAX; i++) {
-		xor=filter->filter_value[i]^dvbdmxfeed->secbuf[i];
-		if (f->maskandmode[i]&xor)
+		u8 xor = f->filter.filter_value[i] ^ feed->feed.sec.secbuf[i];
+
+		if (f->maskandmode[i] & xor)
 			return 0;
-		neq|=f->maskandnotmode[i]&xor;
+
+		neq |= f->maskandnotmode[i] & xor;
 	}
-	if (f->doneq && !neq)
+
+	if (f->doneq & !neq)
 		return 0;
 
-        return dvbdmxfeed->cb.sec(dvbdmxfeed->secbuf, dvbdmxfeed->seclen, 
-                                  0, 0, filter, DMX_OK); 
+	return feed->cb.sec (feed->feed.sec.secbuf, feed->feed.sec.seclen, 
+			     0, 0, &f->filter, DMX_OK); 
 }
 
-static inline int
-dvb_dmx_swfilter_section_feed(struct dvb_demux_feed *dvbdmxfeed)
+
+static inline
+int dvb_dmx_swfilter_section_feed (struct dvb_demux_feed *feed)
 {
-        u8 *buf=dvbdmxfeed->secbuf;
-        struct dvb_demux_filter *f;
+	struct dvb_demux *demux = feed->demux;
+	struct dvb_demux_filter *f = feed->filter;
+	dmx_section_feed_t *sec = &feed->feed.sec;
+	u8 *buf = sec->secbuf;
 
-        if (dvbdmxfeed->secbufp!=dvbdmxfeed->seclen)
+	if (sec->secbufp != sec->seclen)
 		return -1;
-        if (!dvbdmxfeed->feed.sec.is_filtering)
+
+	if (!sec->is_filtering)
 		return 0;
-        if (!(f=dvbdmxfeed->filter))
+
+	if (!f)
 		return 0;
-        do 
-                if (dvb_dmx_swfilter_sectionfilter(dvbdmxfeed, f)<0)
+
+	if (sec->check_crc && demux->check_crc32(feed, sec->secbuf, sec->seclen))
 		return -1;
-        while ((f=f->next) && dvbdmxfeed->feed.sec.is_filtering);
 
-        dvbdmxfeed->secbufp=dvbdmxfeed->seclen=0;
+	do {
+		if (dvb_dmx_swfilter_sectionfilter(feed, f) < 0)
+			return -1;
+	} while ((f = f->next) && sec->is_filtering);
+
+	sec->secbufp = sec->seclen = 0;
+
 	memset(buf, 0, DVB_DEMUX_MASK_MAX);
+ 
 	return 0;
 }
 
-static inline int
-dvb_dmx_swfilter_section_packet(struct dvb_demux_feed *dvbdmxfeed, const u8 *buf) 
+
+static
+int dvb_dmx_swfilter_section_packet(struct dvb_demux_feed *feed, const u8 *buf) 
 {
+	struct dvb_demux *demux = feed->demux;
+	dmx_section_feed_t *sec = &feed->feed.sec;
 	int p, count;
 	int ccok, rest;
 	u8 cc;
 
-        if (!(count=payload(buf)))
+	if (!(count = payload(buf)))
 		return -1;
-        p=188-count;
 
-	cc=buf[3]&0x0f;
-        ccok=((dvbdmxfeed->cc+1)&0x0f)==cc ? 1 : 0;
-        dvbdmxfeed->cc=cc;
+	p = 188-count;
+
+	cc = buf[3] & 0x0f;
+	ccok = ((feed->cc+1) & 0x0f) == cc ? 1 : 0;
+	feed->cc = cc;
 
-        if (buf[1]&0x40) { // PUSI set
+	if (buf[1] & 0x40) { // PUSI set
 		// offset to start of first section is in buf[p] 
 		if (p+buf[p]>187) // trash if it points beyond packet
 			return -1;
+
 		if (buf[p] && ccok) { // rest of previous section?
 			// did we have enough data in last packet to calc length?
-			int tmp=3-dvbdmxfeed->secbufp;
-                        if (tmp>0 && tmp!=3) {
-				if (p+tmp>=187)
+			int tmp = 3 - sec->secbufp;
+
+			if (tmp > 0 && tmp != 3) {
+				if (p + tmp >= 187)
 					return -1;
-                                memcpy(dvbdmxfeed->secbuf+dvbdmxfeed->secbufp,
+
+				demux->memcopy (feed, sec->secbuf+sec->secbufp,
 					       buf+p+1, tmp);
-                                dvbdmxfeed->seclen=section_length(dvbdmxfeed->secbuf);
-				if (dvbdmxfeed->seclen>4096) 
+
+				sec->seclen = section_length(sec->secbuf);
+
+				if (sec->seclen > 4096) 
 					return -1;
 			}
-                        rest=dvbdmxfeed->seclen-dvbdmxfeed->secbufp;
-                        if (rest==buf[p] && dvbdmxfeed->seclen) {
-                                memcpy(dvbdmxfeed->secbuf+dvbdmxfeed->secbufp,
+
+			rest = sec->seclen - sec->secbufp;
+
+			if (rest == buf[p] && sec->seclen) {
+				demux->memcopy (feed, sec->secbuf + sec->secbufp,
 					       buf+p+1, buf[p]);
-                                dvbdmxfeed->secbufp+=buf[p];
-                                dvb_dmx_swfilter_section_feed(dvbdmxfeed);
+				sec->secbufp += buf[p];
+				dvb_dmx_swfilter_section_feed(feed);
 			}
 		}
-                p+=buf[p]+1; 		// skip rest of last section
-                count=188-p;
-                while (count>0) {
+
+		p += buf[p] + 1; 		// skip rest of last section
+		count = 188 - p;
+
+		while (count) {
+
+			sec->crc_val = ~0;
+
 			if ((count>2) && // enough data to determine sec length?
-                            ((dvbdmxfeed->seclen=section_length(buf+p))<=count)) {
-				if (dvbdmxfeed->seclen>4096) 
+			    ((sec->seclen = section_length(buf+p)) <= count)) {
+				if (sec->seclen>4096) 
 					return -1;
-                                memcpy(dvbdmxfeed->secbuf, buf+p, 
-                                       dvbdmxfeed->seclen);
-                                dvbdmxfeed->secbufp=dvbdmxfeed->seclen;
-                                p+=dvbdmxfeed->seclen;
-                                count=188-p;
-                                dvb_dmx_swfilter_section_feed(dvbdmxfeed);
+
+				demux->memcopy (feed, sec->secbuf, buf+p,
+					       sec->seclen);
+
+				sec->secbufp = sec->seclen;
+				p += sec->seclen;
+				count = 188 - p;
+
+				dvb_dmx_swfilter_section_feed(feed);
 
 				// filling bytes until packet end?
 				if (count && buf[p]==0xff) 
 					count=0;
+
 			} else { // section continues to following TS packet
-                                memcpy(dvbdmxfeed->secbuf, buf+p, count);
-                                dvbdmxfeed->secbufp+=count;
+				demux->memcopy(feed, sec->secbuf, buf+p, count);
+				sec->secbufp+=count;
 				count=0;
 			}
 		}
+
 		return 0;
 	}
 
 	// section continued below
 	if (!ccok)
 		return -1;
-	if (!dvbdmxfeed->secbufp) // any data in last ts packet?
+
+	if (!sec->secbufp) // any data in last ts packet?
 		return -1;
+
 	// did we have enough data in last packet to calc section length?
-	if (dvbdmxfeed->secbufp<3) {
-		int tmp=3-dvbdmxfeed->secbufp;
+	if (sec->secbufp < 3) {
+		int tmp = 3 - sec->secbufp;
 		
 		if (tmp>count)
 			return -1;
-		memcpy(dvbdmxfeed->secbuf+dvbdmxfeed->secbufp, buf+p, tmp);
-		dvbdmxfeed->seclen=section_length(dvbdmxfeed->secbuf);
-		if (dvbdmxfeed->seclen>4096) 
+
+		sec->crc_val = ~0;
+
+		demux->memcopy (feed, sec->secbuf + sec->secbufp, buf+p, tmp);
+
+		sec->seclen = section_length(sec->secbuf);
+
+		if (sec->seclen > 4096) 
 			return -1;
 	}
-	rest=dvbdmxfeed->seclen-dvbdmxfeed->secbufp;
-	if (rest<0)
+
+	rest = sec->seclen - sec->secbufp;
+
+	if (rest < 0)
 		return -1;
-	if (rest<=count) {	// section completed in this TS packet
-		memcpy(dvbdmxfeed->secbuf+dvbdmxfeed->secbufp, buf+p, rest);
-		dvbdmxfeed->secbufp+=rest;
-		dvb_dmx_swfilter_section_feed(dvbdmxfeed);
+
+	if (rest <= count) {	// section completed in this TS packet
+		demux->memcopy (feed, sec->secbuf + sec->secbufp, buf+p, rest);
+		sec->secbufp += rest;
+		dvb_dmx_swfilter_section_feed(feed);
 	} else 	{	// section continues in following ts packet
-		memcpy(dvbdmxfeed->secbuf+dvbdmxfeed->secbufp, buf+p, count);
-		dvbdmxfeed->secbufp+=count;
+		demux->memcopy (feed, sec->secbuf + sec->secbufp, buf+p, count);
+		sec->secbufp += count;
 	}
+
 	return 0;
 }
 
-static inline void 
-dvb_dmx_swfilter_packet_type(struct dvb_demux_feed *dvbdmxfeed, const u8 *buf)
+
+static inline
+void dvb_dmx_swfilter_packet_type(struct dvb_demux_feed *feed, const u8 *buf)
 {
-        switch(dvbdmxfeed->type) {
+	switch(feed->type) {
 	case DMX_TYPE_TS:
-                if (!dvbdmxfeed->feed.ts.is_filtering)
+		if (!feed->feed.ts.is_filtering)
 			break;
-                if (dvbdmxfeed->ts_type & TS_PACKET) {
-                        if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
-                                dvb_dmx_swfilter_payload(dvbdmxfeed, buf);
+		if (feed->ts_type & TS_PACKET) {
+			if (feed->ts_type & TS_PAYLOAD_ONLY)
+				dvb_dmx_swfilter_payload(feed, buf);
 			else
-                                dvbdmxfeed->cb.ts((u8 *)buf, 188, 0, 0, 
-                                                  &dvbdmxfeed->feed.ts, DMX_OK); 
+				feed->cb.ts(buf, 188, 0, 0, &feed->feed.ts, DMX_OK); 
 		}
-                if (dvbdmxfeed->ts_type & TS_DECODER) 
-                        if (dvbdmxfeed->demux->write_to_decoder)
-                                dvbdmxfeed->demux->
-                                  write_to_decoder(dvbdmxfeed, (u8 *)buf, 188);
+		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 (!dvbdmxfeed->feed.sec.is_filtering)
+		if (!feed->feed.sec.is_filtering)
 			break;
-                if (dvb_dmx_swfilter_section_packet(dvbdmxfeed, buf)<0)
-                        dvbdmxfeed->seclen=dvbdmxfeed->secbufp=0;
+		if (dvb_dmx_swfilter_section_packet(feed, buf) < 0)
+			feed->feed.sec.seclen = feed->feed.sec.secbufp=0;
 		break;
 
 	default:
@@ -377,59 +396,61 @@ dvb_dmx_swfilter_packet_type(struct dvb_demux_feed *dvbdmxfeed, const u8 *buf)
 	}
 }
 
-void
-dvb_dmx_swfilter_packet(struct dvb_demux *dvbdmx, const u8 *buf)
-{
-        struct dvb_demux_feed *dvbdmxfeed;
 
-        if (!(dvbdmxfeed=dvbdmx->pid2feed[ts_pid(buf)]))
-                return;
-        dvb_dmx_swfilter_packet_type(dvbdmxfeed, buf);
+void dvb_dmx_swfilter_packet(struct dvb_demux *demux, const u8 *buf)
+{
+	struct dvb_demux_feed *feed;
+	struct list_head *pos, *head=&demux->feed_list;
+	u16 pid = ts_pid(buf);
+
+	list_for_each(pos, head) {
+		feed = list_entry(pos, struct dvb_demux_feed, list_head);
+		if (feed->pid == pid)
+			dvb_dmx_swfilter_packet_type (feed, buf);
+		if (feed->pid == 0x2000)
+			feed->cb.ts(buf, 188, 0, 0, &feed->feed.ts, DMX_OK);
+	}
 }
 
-void
-dvb_dmx_swfilter_packets(struct dvb_demux *dvbdmx, const u8 *buf, int count)
+
+void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf, size_t count)
 {
-        struct dvb_demux_feed *dvbdmxfeed;
+	spin_lock(&demux->lock);
 
-	spin_lock(&dvbdmx->lock);
-	if ((dvbdmxfeed=dvbdmx->pid2feed[0x2000]))
-		dvbdmxfeed->cb.ts((u8 *)buf, count*188, 0, 0, 
-				  &dvbdmxfeed->feed.ts, DMX_OK); 
-        while (count) {
-		dvb_dmx_swfilter_packet(dvbdmx, buf);
-		count--;
-		buf+=188;
+	while (count--) {
+		dvb_dmx_swfilter_packet(demux, buf);
+		buf += 188;
 	}
-	spin_unlock(&dvbdmx->lock);
+
+	spin_unlock(&demux->lock);
 }
 
-static inline void
-dvb_dmx_swfilter(struct dvb_demux *dvbdmx, const u8 *buf, size_t count)
+
+void dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, size_t count)
 {
-        int p=0,i, j;
+	int p = 0,i, j;
 	
-        if ((i=dvbdmx->tsbufp)) {
-                if (count<(j=188-i)) {
-                        memcpy(&dvbdmx->tsbuf[i], buf, count);
-                        dvbdmx->tsbufp+=count;
+	if ((i = demux->tsbufp)) {
+		if (count < (j=188-i)) {
+			memcpy(&demux->tsbuf[i], buf, count);
+			demux->tsbufp += count;
 			return;
 		}
-                memcpy(&dvbdmx->tsbuf[i], buf, j);
-                dvb_dmx_swfilter_packet(dvbdmx, dvbdmx->tsbuf);
-                dvbdmx->tsbufp=0;
-                p+=j;
+		memcpy(&demux->tsbuf[i], buf, j);
+		dvb_dmx_swfilter_packet(demux, demux->tsbuf);
+		demux->tsbufp = 0;
+		p += j;
 	}
 
-        while (p<count) {
-                if (buf[p]==0x47) {
-                        if (count-p>=188) {
-                                dvb_dmx_swfilter_packet(dvbdmx, buf+p);
-                                p+=188;
+	while (p < count) {
+		if (buf[p] == 0x47) {
+			if (count-p >= 188) {
+				dvb_dmx_swfilter_packet(demux, buf+p);
+				p += 188;
 			} else {
-                                i=count-p;
-                                memcpy(dvbdmx->tsbuf, buf+p, i);
-                                dvbdmx->tsbufp=i;
+				i = count-p;
+				memcpy(demux->tsbuf, buf+p, i);
+				demux->tsbufp=i;
 				return;
 			}
 		} else 
@@ -438,271 +459,292 @@ dvb_dmx_swfilter(struct dvb_demux *dvbdmx, const u8 *buf, size_t count)
 }
 
 
-/******************************************************************************
- ******************************************************************************
- * DVB DEMUX API LEVEL FUNCTIONS
- ******************************************************************************
- ******************************************************************************/
-
-static struct dvb_demux_filter *
-dvb_dmx_filter_alloc(struct dvb_demux *dvbdmx)
+static
+struct dvb_demux_filter* dvb_dmx_filter_alloc(struct dvb_demux *demux)
 {
 	int i;
 
-        for (i=0; i<dvbdmx->filternum; i++)
-                if (dvbdmx->filter[i].state==DMX_STATE_FREE)
+	for (i=0; i<demux->filternum; i++)
+		if (demux->filter[i].state == DMX_STATE_FREE)
 			break;
-        if (i==dvbdmx->filternum)
-                return 0;
-        dvbdmx->filter[i].state=DMX_STATE_ALLOCATED;
-        return &dvbdmx->filter[i];
+
+	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 *dvbdmx)
+static
+struct dvb_demux_feed* dvb_dmx_feed_alloc(struct dvb_demux *demux)
 {
 	int i;
 
-        for (i=0; i<dvbdmx->feednum; i++)
-                if (dvbdmx->feed[i].state==DMX_STATE_FREE)
+	for (i=0; i<demux->feednum; i++)
+		if (demux->feed[i].state == DMX_STATE_FREE)
 			break;
-        if (i==dvbdmx->feednum)
-                return 0;
-        dvbdmx->feed[i].state=DMX_STATE_ALLOCATED;
-        return &dvbdmx->feed[i];
-}
 
+	if (i == demux->feednum)
+		return NULL;
 
-/******************************************************************************
- * dmx_ts_feed API calls
- ******************************************************************************/
+	demux->feed[i].state = DMX_STATE_ALLOCATED;
 
-static int 
-dmx_pid_set(u16 pid, struct dvb_demux_feed *dvbdmxfeed)
+	return &demux->feed[i];
+}
+
+
+static
+int dmx_pid_set (u16 pid, struct dvb_demux_feed *feed)
 {
-        struct dvb_demux *dvbdmx=dvbdmxfeed->demux;
-	struct dvb_demux_feed **pid2feed=dvbdmx->pid2feed;
+	struct dvb_demux *demux = feed->demux;
+	struct list_head *pos, *n, *head=&demux->feed_list;
 
-	if (pid>DMX_MAX_PID)
+	if (pid > DMX_MAX_PID)
 		return -EINVAL;
-        if (dvbdmxfeed->pid!=0xffff) {
-                if (dvbdmxfeed->pid<=DMX_MAX_PID)
-                        pid2feed[dvbdmxfeed->pid]=0;
-                dvbdmxfeed->pid=0xffff;
-        }
-        if (pid2feed[pid]) {
-                return -EBUSY;
+
+	if (pid == feed->pid)
+		return 0;
+
+	if (feed->pid <= DMX_MAX_PID)
+		list_for_each_safe(pos, n, head)
+			if (DMX_FEED_ENTRY(pos)->pid == feed->pid) {
+				list_del(pos);
+				break;
 			}
-        pid2feed[pid]=dvbdmxfeed;
-        dvbdmxfeed->pid=pid;
+
+	list_add(&feed->list_head, head);
+	feed->pid = pid;
+
 	return 0;
 }
 
 
-static int 
-dmx_ts_feed_set(struct dmx_ts_feed_s* feed,
-                u16 pid,
-		int ts_type, 
-		dmx_ts_pes_t pes_type,
-		size_t callback_length, 
-                size_t circular_buffer_size, 
-                int descramble, 
-                struct timespec timeout
-                )
+static
+int dmx_ts_feed_set (struct dmx_ts_feed_s* ts_feed, u16 pid, int ts_type, 
+		     dmx_ts_pes_t pes_type, size_t callback_length, 
+		     size_t circular_buffer_size, int descramble, 
+		     struct timespec timeout)
 {
-        struct dvb_demux_feed *dvbdmxfeed=(struct dvb_demux_feed *) feed;
-        struct dvb_demux *dvbdmx=dvbdmxfeed->demux;
+	struct dvb_demux_feed *feed = (struct dvb_demux_feed *) ts_feed;
+	struct dvb_demux *demux = feed->demux;
 	int ret;
 	
-        if (down_interruptible (&dvbdmx->mutex))
+	if (down_interruptible (&demux->mutex))
 		return -ERESTARTSYS;
 
 	if (ts_type & TS_DECODER) {
 		if (pes_type >= DMX_TS_PES_OTHER) {
-			up(&dvbdmx->mutex);
+			up(&demux->mutex);
 			return -EINVAL;
 		}
-                if (dvbdmx->pesfilter[pes_type] && 
-                    (dvbdmx->pesfilter[pes_type]!=dvbdmxfeed)) {
-			up(&dvbdmx->mutex);
+
+		if (demux->pesfilter[pes_type] && 
+		    demux->pesfilter[pes_type] != feed) {
+			up(&demux->mutex);
 			return -EINVAL;
 		}
+
 		if ((pes_type != DMX_TS_PES_PCR0) && 
 		    (pes_type != DMX_TS_PES_PCR1) && 
 		    (pes_type != DMX_TS_PES_PCR2) && 
 		    (pes_type != DMX_TS_PES_PCR3)) {
-			if ((ret=dmx_pid_set(pid, dvbdmxfeed))<0) {
-				up(&dvbdmx->mutex);
+			if ((ret = dmx_pid_set(pid, feed))<0) {
+				up(&demux->mutex);
 				return ret;
-			} else
-				dvbdmxfeed->pid=pid;
 			}
-                dvbdmx->pesfilter[pes_type]=dvbdmxfeed;
-	        dvbdmx->pids[pes_type]=dvbdmxfeed->pid;
 		} else
-		if ((ret=dmx_pid_set(pid, dvbdmxfeed))<0) {
-			up(&dvbdmx->mutex);
+			feed->pid = pid;
+				
+		demux->pesfilter[pes_type] = feed;
+		demux->pids[pes_type] = feed->pid;
+	} else {
+		if ((ret = dmx_pid_set(pid, feed))<0) {
+			up(&demux->mutex);
 			return ret;
 		}
+	}
 
-        dvbdmxfeed->buffer_size=circular_buffer_size;
-        dvbdmxfeed->descramble=descramble;
-        dvbdmxfeed->timeout=timeout;
-        dvbdmxfeed->cb_length=callback_length;
-        dvbdmxfeed->ts_type=ts_type;
-        dvbdmxfeed->pes_type=pes_type;
+	feed->buffer_size = circular_buffer_size;
+	feed->descramble = descramble;
+	feed->timeout = timeout;
+	feed->cb_length = callback_length;
+	feed->ts_type = ts_type;
+	feed->pes_type = pes_type;
 
-        if (dvbdmxfeed->descramble) {
-		up(&dvbdmx->mutex);
+	if (feed->descramble) {
+		up(&demux->mutex);
 		return -ENOSYS;
 	}
 
-        if (dvbdmxfeed->buffer_size) {
+	if (feed->buffer_size) {
 #ifdef NOBUFS
-                dvbdmxfeed->buffer=0;
+		feed->buffer=0;
 #else
-                dvbdmxfeed->buffer=vmalloc(dvbdmxfeed->buffer_size);
-                if (!dvbdmxfeed->buffer) {
-			up(&dvbdmx->mutex);
+		feed->buffer = vmalloc(feed->buffer_size);
+		if (!feed->buffer) {
+			up(&demux->mutex);
 			return -ENOMEM;
 		}
 #endif
 	}
-        dvbdmxfeed->state=DMX_STATE_READY;
-        up(&dvbdmx->mutex);
+	
+	feed->state = DMX_STATE_READY;
+	up(&demux->mutex);
+
 	return 0;
 }
 
-static int 
-dmx_ts_feed_start_filtering(struct dmx_ts_feed_s* feed)
+
+static
+int dmx_ts_feed_start_filtering(struct dmx_ts_feed_s* ts_feed)
 {
-        struct dvb_demux_feed *dvbdmxfeed=(struct dvb_demux_feed *) feed;
-        struct dvb_demux *dvbdmx=dvbdmxfeed->demux;
+	struct dvb_demux_feed *feed = (struct dvb_demux_feed *) ts_feed;
+	struct dvb_demux *demux = feed->demux;
 	int ret;
 
-        if (down_interruptible (&dvbdmx->mutex))
+	if (down_interruptible (&demux->mutex))
 		return -ERESTARTSYS;
 
-        if (dvbdmxfeed->state!=DMX_STATE_READY ||
-	    dvbdmxfeed->type!=DMX_TYPE_TS) {
-		up(&dvbdmx->mutex);
+	if (feed->state != DMX_STATE_READY || feed->type != DMX_TYPE_TS) {
+		up(&demux->mutex);
 		return -EINVAL;
 	}
-        if (!dvbdmx->start_feed) {
-		up(&dvbdmx->mutex);
-                return -1;
+
+	if (!demux->start_feed) {
+		up(&demux->mutex);
+		return -ENODEV;
 	}
-        ret=dvbdmx->start_feed(dvbdmxfeed); 
-        if (ret<0) {
-		up(&dvbdmx->mutex);
+
+	if ((ret = demux->start_feed(feed)) < 0) {
+		up(&demux->mutex);
 		return ret;
 	}
-	spin_lock_irq(&dvbdmx->lock);
-        feed->is_filtering=1;
-        dvbdmxfeed->state=DMX_STATE_GO;
-	spin_unlock_irq(&dvbdmx->lock);
-        up(&dvbdmx->mutex);
+
+	spin_lock_irq(&demux->lock);
+	ts_feed->is_filtering = 1;
+	feed->state = DMX_STATE_GO;
+	spin_unlock_irq(&demux->lock);
+	up(&demux->mutex);
+
 	return 0;
 }
  
-static int 
-dmx_ts_feed_stop_filtering(struct dmx_ts_feed_s* feed)
+static
+int dmx_ts_feed_stop_filtering(struct dmx_ts_feed_s* ts_feed)
 {
-        struct dvb_demux_feed *dvbdmxfeed=(struct dvb_demux_feed *) feed;
-        struct dvb_demux *dvbdmx=dvbdmxfeed->demux;
+	struct dvb_demux_feed *feed = (struct dvb_demux_feed *) ts_feed;
+	struct dvb_demux *demux = feed->demux;
 	int ret;
 
-        if (down_interruptible (&dvbdmx->mutex))
+	if (down_interruptible (&demux->mutex))
 		return -ERESTARTSYS;
 
-        if (dvbdmxfeed->state<DMX_STATE_GO) {
-		up(&dvbdmx->mutex);
+	if (feed->state<DMX_STATE_GO) {
+		up(&demux->mutex);
 		return -EINVAL;
 	}
-        if (!dvbdmx->stop_feed) {
-		up(&dvbdmx->mutex);
-                return -1;
+
+	if (!demux->stop_feed) {
+		up(&demux->mutex);
+		return -ENODEV;
 	}
-        ret=dvbdmx->stop_feed(dvbdmxfeed); 
-	spin_lock_irq(&dvbdmx->lock);
-        feed->is_filtering=0;
-        dvbdmxfeed->state=DMX_STATE_ALLOCATED;
 
-	spin_unlock_irq(&dvbdmx->lock);
-        up(&dvbdmx->mutex);
+	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);
+	up(&demux->mutex);
+
 	return ret;
 }
 
-static int dvbdmx_allocate_ts_feed(dmx_demux_t *demux,
-                                   dmx_ts_feed_t **feed, 
+static
+int dvbdmx_allocate_ts_feed (dmx_demux_t *dmx, dmx_ts_feed_t **ts_feed, 
 			     dmx_ts_cb callback)
 {
-        struct dvb_demux *dvbdmx=(struct dvb_demux *) demux;
-        struct dvb_demux_feed *dvbdmxfeed;
+	struct dvb_demux *demux = (struct dvb_demux *) dmx;
+	struct dvb_demux_feed *feed;
 
-        if (down_interruptible (&dvbdmx->mutex))
+	if (down_interruptible (&demux->mutex))
 		return -ERESTARTSYS;
 
-        if (!(dvbdmxfeed=dvb_dmx_feed_alloc(dvbdmx))) {
-		up(&dvbdmx->mutex);
+	if (!(feed = dvb_dmx_feed_alloc(demux))) {
+		up(&demux->mutex);
 		return -EBUSY;
 	}
-        dvbdmxfeed->type=DMX_TYPE_TS;
-        dvbdmxfeed->cb.ts=callback;
-        dvbdmxfeed->demux=dvbdmx;
-        dvbdmxfeed->pid=0xffff;
-        dvbdmxfeed->peslen=0xfffa;
-        dvbdmxfeed->buffer=0;
-
-        (*feed)=&dvbdmxfeed->feed.ts;
-        (*feed)->is_filtering=0;
-        (*feed)->parent=demux;
-        (*feed)->priv=0;
-        (*feed)->set=dmx_ts_feed_set;
-        (*feed)->start_filtering=dmx_ts_feed_start_filtering;
-        (*feed)->stop_filtering=dmx_ts_feed_stop_filtering;
-
 
-        if (!(dvbdmxfeed->filter=dvb_dmx_filter_alloc(dvbdmx))) {
-                dvbdmxfeed->state=DMX_STATE_FREE;
-		up(&dvbdmx->mutex);
+	feed->type = DMX_TYPE_TS;
+	feed->cb.ts = callback;
+	feed->demux = demux;
+	feed->pid = 0xffff;
+	feed->peslen = 0xfffa;
+	feed->buffer = 0;
+
+	(*ts_feed) = &feed->feed.ts;
+	(*ts_feed)->is_filtering = 0;
+	(*ts_feed)->parent = dmx;
+	(*ts_feed)->priv = 0;
+	(*ts_feed)->set = dmx_ts_feed_set;
+	(*ts_feed)->start_filtering = dmx_ts_feed_start_filtering;
+	(*ts_feed)->stop_filtering = dmx_ts_feed_stop_filtering;
+
+
+	if (!(feed->filter = dvb_dmx_filter_alloc(demux))) {
+		feed->state = DMX_STATE_FREE;
+		up(&demux->mutex);
 		return -EBUSY;
 	}
 
-        dvbdmxfeed->filter->type=DMX_TYPE_TS;
-        dvbdmxfeed->filter->feed=dvbdmxfeed;
-        dvbdmxfeed->filter->state=DMX_STATE_READY;
+	feed->filter->type = DMX_TYPE_TS;
+	feed->filter->feed = feed;
+	feed->filter->state = DMX_STATE_READY;
+	
+	up(&demux->mutex);
 
-        up(&dvbdmx->mutex);
 	return 0;
 }
 
-static int dvbdmx_release_ts_feed(dmx_demux_t *demux, dmx_ts_feed_t *feed)
+static
+int dvbdmx_release_ts_feed(dmx_demux_t *dmx, dmx_ts_feed_t *ts_feed)
 {
-        struct dvb_demux *dvbdmx=(struct dvb_demux *) demux;
-        struct dvb_demux_feed *dvbdmxfeed=(struct dvb_demux_feed *) feed;
+	struct dvb_demux *demux = (struct dvb_demux *) dmx;
+	struct dvb_demux_feed *feed = (struct dvb_demux_feed *) ts_feed;
+	struct list_head *pos, *n, *head=&demux->feed_list;
 
-        if (down_interruptible (&dvbdmx->mutex))
+	if (down_interruptible (&demux->mutex))
 		return -ERESTARTSYS;
 
-        if (dvbdmxfeed->state==DMX_STATE_FREE) {
-		up(&dvbdmx->mutex);
+	if (feed->state == DMX_STATE_FREE) {
+		up(&demux->mutex);
 		return -EINVAL;
 	}
+
 #ifndef NOBUFS
-        if (dvbdmxfeed->buffer) { 
-                vfree(dvbdmxfeed->buffer);
-                dvbdmxfeed->buffer=0;
+	if (feed->buffer) { 
+		vfree(feed->buffer);
+		feed->buffer=0;
 	}
 #endif
-        dvbdmxfeed->state=DMX_STATE_FREE;
-        dvbdmxfeed->filter->state=DMX_STATE_FREE;
-	if (dvbdmxfeed->pid<=DMX_MAX_PID) {
-		dvbdmxfeed->demux->pid2feed[dvbdmxfeed->pid]=0;
-                dvbdmxfeed->pid=0xffff;
+
+	feed->state = DMX_STATE_FREE;
+	feed->filter->state = DMX_STATE_FREE;
+
+	if (feed->pid <= DMX_MAX_PID) {
+		list_for_each_safe(pos, n, head)
+			if (DMX_FEED_ENTRY(pos)->pid == feed->pid) {
+				list_del(pos);
+				break;
+			}
+		feed->pid = 0xffff;
 	}
 	
-        up(&dvbdmx->mutex);
+	if (feed->ts_type & TS_DECODER)
+		demux->pesfilter[feed->pes_type] = NULL;
+
+	up(&demux->mutex);
 	return 0;
 }
 
@@ -749,6 +791,7 @@ dmx_section_feed_set(struct dmx_section_feed_s* feed,
 {
 	struct dvb_demux_feed *dvbdmxfeed=(struct dvb_demux_feed *) feed;
 	struct dvb_demux *dvbdmx=dvbdmxfeed->demux;
+	struct list_head *pos, *n, *head=&dvbdmx->feed_list;
 
 	if (pid>0x1fff)
 		return -EINVAL;
@@ -756,15 +799,14 @@ dmx_section_feed_set(struct dmx_section_feed_s* feed,
 	if (down_interruptible (&dvbdmx->mutex))
 		return -ERESTARTSYS;
 	
-        if (dvbdmxfeed->pid!=0xffff) {
-                dvbdmx->pid2feed[dvbdmxfeed->pid]=0;
-                dvbdmxfeed->pid=0xffff;
-        }
-        if (dvbdmx->pid2feed[pid]) {
-		up(&dvbdmx->mutex);
-		return -EBUSY;
+	if (dvbdmxfeed->pid <= DMX_MAX_PID)
+		list_for_each_safe(pos, n, head)
+			if (DMX_FEED_ENTRY(pos)->pid == dvbdmxfeed->pid) {
+				list_del(pos);
+				break;
 			}
-        dvbdmx->pid2feed[pid]=dvbdmxfeed;
+
+	list_add(&dvbdmxfeed->list_head, head);
 	dvbdmxfeed->pid=pid;
 
 	dvbdmxfeed->buffer_size=circular_buffer_size;
@@ -774,7 +816,7 @@ dmx_section_feed_set(struct dmx_section_feed_s* feed,
 		return -ENOSYS;
 	}
 
-        dvbdmxfeed->check_crc=check_crc;
+	dvbdmxfeed->feed.sec.check_crc=check_crc;
 #ifdef NOBUFS
 	dvbdmxfeed->buffer=0;
 #else
@@ -830,19 +872,21 @@ dmx_section_feed_start_filtering(dmx_section_feed_t *feed)
 		up(&dvbdmx->mutex);
 		return -EINVAL;
 	}
-        dvbdmxfeed->secbufp=0;
-        dvbdmxfeed->seclen=0;
+	dvbdmxfeed->feed.sec.secbufp=0;
+	dvbdmxfeed->feed.sec.seclen=0;
 	
 	if (!dvbdmx->start_feed) {
 		up(&dvbdmx->mutex);
-                return -1;
+		return -ENODEV;
 	}
+
 	prepare_secfilters(dvbdmxfeed);
-        ret=dvbdmx->start_feed(dvbdmxfeed); 
-	if (ret<0) {
+
+	if ((ret = dvbdmx->start_feed(dvbdmxfeed)) < 0) {
 		up(&dvbdmx->mutex);
 		return ret;
 	}
+
 	spin_lock_irq(&dvbdmx->lock);
 	feed->is_filtering=1;
 	dvbdmxfeed->state=DMX_STATE_GO;
@@ -863,7 +907,7 @@ dmx_section_feed_stop_filtering(struct dmx_section_feed_s* feed)
 
 	if (!dvbdmx->stop_feed) {
 		up(&dvbdmx->mutex);
-                return -1;
+		return -ENODEV;
 	}
 	ret=dvbdmx->stop_feed(dvbdmxfeed); 
 	spin_lock_irq(&dvbdmx->lock);
@@ -925,7 +969,7 @@ static int dvbdmx_allocate_section_feed(dmx_demux_t *demux,
 	dvbdmxfeed->cb.sec=callback;
 	dvbdmxfeed->demux=dvbdmx;
 	dvbdmxfeed->pid=0xffff;
-        dvbdmxfeed->secbufp=0;
+	dvbdmxfeed->feed.sec.secbufp=0;
 	dvbdmxfeed->filter=0;
 	dvbdmxfeed->buffer=0;
 
@@ -948,6 +992,7 @@ static int dvbdmx_release_section_feed(dmx_demux_t *demux,
 {
 	struct dvb_demux_feed *dvbdmxfeed=(struct dvb_demux_feed *) feed;
 	struct dvb_demux *dvbdmx=(struct dvb_demux *) demux;
+	struct list_head *pos, *n, *head=&dvbdmx->feed_list;
 
 	if (down_interruptible (&dvbdmx->mutex))
 		return -ERESTARTSYS;
@@ -963,9 +1008,16 @@ static int dvbdmx_release_section_feed(dmx_demux_t *demux,
 	}
 #endif
 	dvbdmxfeed->state=DMX_STATE_FREE;
-        dvbdmxfeed->demux->pid2feed[dvbdmxfeed->pid]=0;
-        if (dvbdmxfeed->pid!=0xffff)
-                dvbdmxfeed->demux->pid2feed[dvbdmxfeed->pid]=0;
+
+	if (dvbdmxfeed->pid <= DMX_MAX_PID) {
+		list_for_each_safe(pos, n, head)
+			if (DMX_FEED_ENTRY(pos)->pid == dvbdmxfeed->pid) {
+				list_del(pos);
+				break;
+			}
+		dvbdmxfeed->pid = 0xffff;
+	}
+
 	up(&dvbdmx->mutex);
 	return 0;
 }
@@ -1125,9 +1177,15 @@ dvb_dmx_init(struct dvb_demux *dvbdemux)
 		dvbdemux->pids[i]=0xffff;
 	}
 	dvbdemux->playing=dvbdemux->recording=0;
-        memset(dvbdemux->pid2feed, 0, (DMX_MAX_PID+1)*sizeof(struct dvb_demux_feed *));
+	INIT_LIST_HEAD(&dvbdemux->feed_list);
 	dvbdemux->tsbufp=0;
 
+	if (!dvbdemux->check_crc32)
+		dvbdemux->check_crc32 = dvb_dmx_crc32;
+
+	 if (!dvbdemux->memcopy)
+		 dvbdemux->memcopy = dvb_dmx_memcopy;
+
 	dmx->frontend=0;
 	dmx->reg_list.next=dmx->reg_list.prev=&dmx->reg_list;
 	dmx->priv=(void *) dvbdemux;

drivers/media/dvb/dvb-core/dvb_demux.h

@@ -25,6 +25,9 @@
 #ifndef _DVB_DEMUX_H_
 #define _DVB_DEMUX_H_
 
+#include <asm/semaphore.h>
+#include <linux/timer.h>
+
 #include "demux.h"
 
 #define DMX_TYPE_TS  0
@@ -59,6 +62,8 @@ struct dvb_demux_filter {
 };
 
 
+#define DMX_FEED_ENTRY(pos) list_entry(pos, struct dvb_demux_feed, list_head)
+
 struct dvb_demux_feed {
         union {
 	        dmx_ts_feed_t ts;
@@ -71,13 +76,13 @@ struct dvb_demux_feed {
 	} cb;
 
         struct dvb_demux *demux;
+	void *priv;
         int type;
         int state;
         u16 pid;
         u8 *buffer;
         int buffer_size;
         int descramble;
-        int check_crc;
 
         struct timespec timeout; 
         struct dvb_demux_filter *filter;
@@ -86,12 +91,11 @@ struct dvb_demux_feed {
         int ts_type;
         dmx_ts_pes_t pes_type;
 
-        u8 secbuf[4096];
-        int secbufp;
-        int seclen;
         int cc;
 
         u16 peslen;
+
+	struct list_head list_head;
 };
 
 struct dvb_demux {
@@ -99,10 +103,14 @@ struct dvb_demux {
         void *priv;
         int filternum;
         int feednum;
-        int (*start_feed)(struct dvb_demux_feed *);
-        int (*stop_feed)(struct dvb_demux_feed *);
-        int (*write_to_decoder)(struct dvb_demux_feed *, u8 *, size_t);
-
+        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
@@ -117,7 +125,7 @@ struct dvb_demux {
         int recording; 
 
 #define DMX_MAX_PID 0x2000
-        struct dvb_demux_feed *pid2feed[DMX_MAX_PID+1];
+	struct list_head feed_list;
         u8 tsbuf[188];
         int tsbufp;
 
@@ -129,6 +137,7 @@ struct dvb_demux {
 int dvb_dmx_init(struct dvb_demux *dvbdemux);
 int dvb_dmx_release(struct dvb_demux *dvbdemux);
 void dvb_dmx_swfilter_packet(struct dvb_demux *dvbdmx, const u8 *buf);
-void dvb_dmx_swfilter_packets(struct dvb_demux *dvbdmx, const u8 *buf, int count);
+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);
 
 #endif /* _DVB_DEMUX_H_ */

drivers/media/dvb/dvb-core/dvb_filter.c

 #include <linux/module.h>
-#include <linux/videodev.h>
 #include "dvb_filter.h"
 
 unsigned int bitrates[3][16] =
@@ -346,8 +345,8 @@ int get_ainfo(uint8_t *mbuf, int count, AudioInfo *ai, int pr)
 }
 #endif
 
-static
-int get_ac3info(uint8_t *mbuf, int count, AudioInfo *ai, int pr)
+
+int dvb_filter_get_ac3info(uint8_t *mbuf, int count, AudioInfo *ai, int pr)
 {
 	uint8_t *headr;
 	int found = 0;
@@ -605,397 +604,3 @@ int dvb_filter_pes2ts(dvb_filter_pes2ts_t *p2ts, unsigned char *pes, int len)
 	return p2ts->cb(p2ts->priv, buf);
 }
 
-void dvb_filter_ipack_reset(ipack *p)
-{
-	p->found = 0;
-	p->cid = 0;
-	p->plength = 0;
-	p->flag1 = 0;
-	p->flag2 = 0;
-	p->hlength = 0;
-	p->mpeg = 0;
-	p->check = 0;
-	p->which = 0;
-	p->done = 0;
-	p->count = 0;
-}
-
-void dvb_filter_ipack_init(ipack *p, int size,
-		void (*func)(u8 *buf, int size, void *priv))
-{
-	if ( !(p->buf = vmalloc(size*sizeof(u8))) ){
-		printk ("Couldn't allocate memory for ipack\n");
-	}
-	p->size = size;
-	p->func = func;
-	p->repack_subids = 0;
-	dvb_filter_ipack_reset(p);
-}
-
-void dvb_filter_ipack_free(ipack * p)
-{
-	if (p->buf) vfree(p->buf);
-}
-
-static
-void send_ipack(ipack *p)
-{
-	int off;
-	AudioInfo ai;
-	int ac3_off = 0;
-	int streamid=0;
-	int nframes= 0;
-	int f=0;
-
-	switch ( p->mpeg ){
-	case 2:		
-		if (p->count < 10) return;
-		p->buf[3] = p->cid;
-
-		p->buf[4] = (u8)(((p->count-6) & 0xFF00) >> 8);
-		p->buf[5] = (u8)((p->count-6) & 0x00FF);
-		if (p->repack_subids && p->cid == PRIVATE_STREAM1){
-			
-			off = 9+p->buf[8];
-			streamid = p->buf[off];
-			if ((streamid & 0xF8) == 0x80){
-				ai.off = 0;
-				ac3_off = ((p->buf[off+2] << 8)| 
-					   p->buf[off+3]);
-				if (ac3_off < p->count)
-					f=get_ac3info(p->buf+off+3+ac3_off, 
-						      p->count-ac3_off, &ai,0);
-				if ( !f ){
-					nframes = (p->count-off-3-ac3_off)/ 
-						ai.framesize + 1;
-					p->buf[off+2] = (ac3_off >> 8)& 0xFF;
-					p->buf[off+3] = (ac3_off)& 0xFF;
-					p->buf[off+1] = nframes;
-					
-					ac3_off +=  nframes * ai.framesize - 
-						p->count;
-				}
-		}
-	}	
-		p->func(p->buf, p->count, p->data);
-
-		p->buf[6] = 0x80;
-		p->buf[7] = 0x00;
-		p->buf[8] = 0x00;
-		p->count = 9;
-		if (p->repack_subids && p->cid == PRIVATE_STREAM1 
-		    && (streamid & 0xF8)==0x80 ){
-			p->count += 4;
-			p->buf[9] = streamid;
-			p->buf[10] = (ac3_off >> 8)& 0xFF;
-			p->buf[11] = (ac3_off)& 0xFF;
-			p->buf[12] = 0;
-		}
-
-		break;
-	case 1:
-		if (p->count < 8) return;
-		p->buf[3] = p->cid;
-
-		p->buf[4] = (u8)(((p->count-6) & 0xFF00) >> 8);
-		p->buf[5] = (u8)((p->count-6) & 0x00FF);
-		p->func(p->buf, p->count, p->data);
-
-		p->buf[6] = 0x0F;
-		p->count = 7;
-		break;
-	}
-}
-
-void dvb_filter_ipack_flush(ipack *p)
-{
-	if (p->plength != MMAX_PLENGTH-6 || p->found<=6)
-		return;
-	p->plength = p->found-6;
-	p->found = 0;
-	send_ipack(p);
-	dvb_filter_ipack_reset(p);
-}
-
-static 
-void write_ipack(ipack *p, u8 *data, int count)
-{
-	u8 headr[3] = { 0x00, 0x00, 0x01} ;
-
-	if (p->count < 6){
-		memcpy(p->buf, headr, 3);
-		p->count = 6;
-	}
-
-	if (p->count + count < p->size){
-		memcpy(p->buf+p->count, data, count);
-		p->count += count;
-	} else {
-		int rest = p->size - p->count;
-		memcpy(p->buf+p->count, data, rest);
-		p->count += rest;
-		send_ipack(p);
-		if (count - rest > 0)
-			write_ipack(p, data+rest, count-rest);
-	}
-}
-
-
-int dvb_filter_instant_repack(u8 *buf, int count, ipack *p)
-{
-	int l;
-	int c=0;
-	
-	while (c < count && (p->mpeg == 0 ||
-			     (p->mpeg == 1 && p->found < 7) ||
-			     (p->mpeg == 2 && p->found < 9))
-	       &&  (p->found < 5 || !p->done)){
-		switch ( p->found ){
-		case 0:
-		case 1:
-			if (buf[c] == 0x00) p->found++;
-			else p->found = 0;
-			c++;
-			break;
-		case 2:
-			if (buf[c] == 0x01) p->found++;
-			else if (buf[c] == 0) {
-				p->found = 2;
-			} else p->found = 0;
-			c++;
-			break;
-		case 3:
-			p->cid = 0;
-			switch (buf[c]){
-			case PROG_STREAM_MAP:
-			case PRIVATE_STREAM2:
-			case PROG_STREAM_DIR:
-			case ECM_STREAM     :
-			case EMM_STREAM     :
-			case PADDING_STREAM :
-			case DSM_CC_STREAM  :
-			case ISO13522_STREAM:
-				p->done = 1;
-			case PRIVATE_STREAM1:
-			case VIDEO_STREAM_S ... VIDEO_STREAM_E:
-			case AUDIO_STREAM_S ... AUDIO_STREAM_E:
-				p->found++;
-				p->cid = buf[c];
-				c++;
-				break;
-			default:
-				p->found = 0;
-				break;
-			}
-			break;
-
-		case 4:
-			if (count-c > 1){
-				p->plen[0] = buf[c];
-			c++;
-				p->plen[1] = buf[c];
-				c++;
-				p->found+=2;
-				p->plength=(p->plen[0]<<8)|p->plen[1];
- 			} else {
-				p->plen[0] = buf[c];
-				p->found++;
-				return count;
-		}
-			break;
-		case 5:
-			p->plen[1] = buf[c];
-			c++;
-			p->found++;
-			p->plength=(p->plen[0]<<8)|p->plen[1];
-			break;
-		case 6:
-			if (!p->done){
-				p->flag1 = buf[c];
-				c++;
-				p->found++;
-				if ( (p->flag1 & 0xC0) == 0x80 ) p->mpeg = 2;
-				else {
-					p->hlength = 0;
-					p->which = 0;
-					p->mpeg = 1;
-					p->flag2 = 0;
-	}	
-			}
-			break;
-
-		case 7:
-			if ( !p->done && p->mpeg == 2) {
-				p->flag2 = buf[c];
-				c++;
-				p->found++;
-			}	
-			break;
-
-		case 8:
-			if ( !p->done && p->mpeg == 2) {
-				p->hlength = buf[c];
-				c++;
-				p->found++;
-			}
-			break;
-
-		default:
-
-			break;
-		}
-	}
-
-	if (c == count) return count;
-
-	if (!p->plength) p->plength = MMAX_PLENGTH-6;
-
-	if ( p->done || ((p->mpeg == 2 && p->found >= 9) || 
-	     (p->mpeg == 1 && p->found >= 7)) ){
-		switch (p->cid){
-
-		case AUDIO_STREAM_S ... AUDIO_STREAM_E:			
-		case VIDEO_STREAM_S ... VIDEO_STREAM_E:
-		case PRIVATE_STREAM1:
-
-			if (p->mpeg == 2 && p->found == 9) {
-				write_ipack(p, &p->flag1, 1);
-				write_ipack(p, &p->flag2, 1);
-				write_ipack(p, &p->hlength, 1);
-			}
-
-			if (p->mpeg == 1 && p->found == 7) 
-				write_ipack(p, &p->flag1, 1);
-
-			if (p->mpeg == 2 && (p->flag2 & PTS_ONLY) &&  
-			    p->found < 14) {
-				while (c < count && p->found < 14) {
-					p->pts[p->found-9] = buf[c];
-					write_ipack(p, buf+c, 1);
-					c++;
-					p->found++;
-                        }
-				if (c == count) return count;
-        }
-
-			if (p->mpeg == 1 && p->which < 2000) {
-
-				if (p->found == 7) {
-					p->check = p->flag1;
-					p->hlength = 1;
-				}
-
-				while (!p->which && c < count && 
-				       p->check == 0xFF){
-					p->check = buf[c];
-					write_ipack(p, buf+c, 1);
-					c++;
-					p->found++;
-					p->hlength++;
-				}
-
-				if ( c == count) return count;
-
-				if ( (p->check & 0xC0) == 0x40 && !p->which){
-					p->check = buf[c];
-					write_ipack(p, buf+c, 1);
-					c++;
-					p->found++;
-					p->hlength++;
-
-					p->which = 1;
-					if ( c == count) return count;
-					p->check = buf[c];
-					write_ipack(p, buf+c, 1);
-					c++;
-					p->found++;
-					p->hlength++;
-					p->which = 2;
-					if ( c == count) return count;
-				}
-
-				if (p->which == 1){
-					p->check = buf[c];
-					write_ipack(p, buf+c, 1);
-					c++;
-					p->found++;
-					p->hlength++;
-					p->which = 2;
-					if ( c == count) return count;
-        }
-
-				if ( (p->check & 0x30) && p->check != 0xFF){
-					p->flag2 = (p->check & 0xF0) << 2;
-					p->pts[0] = p->check;
-					p->which = 3;
-				} 
-
-				if ( c == count) return count;
-				if (p->which > 2){
-					if ((p->flag2 & PTS_DTS_FLAGS)
-					    == PTS_ONLY){
-						while (c < count && 
-						       p->which < 7){
-							p->pts[p->which-2] =
-								buf[c];
-							write_ipack(p,buf+c,1);
-							c++;
-							p->found++;
-							p->which++;
-							p->hlength++;
-						}
-						if ( c == count) return count;
-					} else if ((p->flag2 & PTS_DTS_FLAGS) 
-						   == PTS_DTS){
-						while (c < count && 
-						       p->which< 12){
-							if (p->which< 7)
-								p->pts[p->which
-								      -2] =
-									buf[c];
-							write_ipack(p,buf+c,1);
-							c++;
-							p->found++;
-							p->which++;
-							p->hlength++;
-						}
-						if ( c == count) return count;
-					}
-					p->which = 2000;
-				}
-
-			}
-
-			while (c < count && p->found < p->plength+6){
-				l = count -c;
-				if (l+p->found > p->plength+6)
-					l = p->plength+6-p->found;
-				write_ipack(p, buf+c, l);
-				p->found += l;
-				c += l;
-			}	
-
-			break;
-        }
-
-
-		if ( p->done ){
-			if( p->found + count - c < p->plength+6){
-				p->found += count-c;
-				c = count;
-        } else {
-				c += p->plength+6 - p->found;
-				p->found = p->plength+6;
-			}
-        }
-
-		if (p->plength && p->found == p->plength+6) {
-			send_ipack(p);
-			dvb_filter_ipack_reset(p);
-			if (c < count)
-				dvb_filter_instant_repack(buf+c, count-c, p);
-		}
-	}
-	return count;
-}
-

drivers/media/dvb/dvb-core/dvb_filter.h

@@ -17,6 +17,7 @@ typedef struct dvb_filter_pes2ts_s {
 
 void dvb_filter_pes2ts_init(dvb_filter_pes2ts_t *p2ts, unsigned short pid, 
 		 	    dvb_filter_pes2ts_cb_t *cb, void *priv);
+
 int dvb_filter_pes2ts(dvb_filter_pes2ts_t *p2ts, unsigned char *pes, int len);
 
 
@@ -223,12 +224,7 @@ typedef struct audio_i{
 	uint32_t off;
 } AudioInfo;
 
+int dvb_filter_get_ac3info(uint8_t *mbuf, int count, AudioInfo *ai, int pr);
 
-void dvb_filter_ipack_reset(ipack *p);
-int dvb_filter_instant_repack(u8 *buf, int count, ipack *p);
-void dvb_filter_ipack_init(ipack *p, int size,
-		void (*func)(u8 *buf,  int size, void *priv));
-void dvb_filter_ipack_free(ipack * p);
-void dvb_filter_ipack_flush(ipack *p);
 
 #endif

drivers/media/dvb/dvb-core/dvb_frontend.c

@@ -27,16 +27,14 @@
 #include <linux/slab.h>
 #include <linux/poll.h>
 #include <linux/module.h>
-#include <linux/compatmac.h>
 #include <linux/list.h>
 
-#include "compat.h"
 #include "dvb_frontend.h"
 #include "dvbdev.h"
 
 
 static int dvb_frontend_debug = 0;
-static int dvb_shutdown_timeout = 0;
+static int dvb_shutdown_timeout = 5;
 
 #define dprintk if (dvb_frontend_debug) printk
 
@@ -52,18 +50,10 @@ struct dvb_fe_events {
 };
 
 
-struct dvb_fe_notifier_callbacks {
-	struct list_head list_head;
-	void (*callback) (fe_status_t s, void *data);
-	void *data;
-};
-
-
 struct dvb_frontend_data {
 	struct dvb_frontend_info *info;
 	struct dvb_frontend frontend;
 	struct dvb_device *dvbdev;
-	struct list_head notifier_callbacks;
 	struct dvb_frontend_parameters parameters;
 	struct dvb_fe_events events;
 	struct semaphore sem;
@@ -92,8 +82,17 @@ struct dvb_frontend_ioctl_data {
 };
 
 
+struct dvb_frontend_notifier_data {
+	struct list_head list_head;
+	struct dvb_adapter *adapter;
+	void (*callback) (fe_status_t s, void *data);
+	void *data;
+};
+
+
 static LIST_HEAD(frontend_list);
 static LIST_HEAD(frontend_ioctl_list);
+static LIST_HEAD(frontend_notifier_list);
 
 static DECLARE_MUTEX(frontend_mutex);
 
@@ -153,6 +152,7 @@ void dvb_bend_frequency (struct dvb_frontend_data *this_fe, int recursive)
 	if (!recursive) {
 		if (down_interruptible (&frontend_mutex))
 			return;
+
 		this_fe->bending = 0;
 	}
 
@@ -170,7 +170,7 @@ void dvb_bend_frequency (struct dvb_frontend_data *this_fe, int recursive)
 		frequency += this_fe->lnb_drift;
 		frequency += this_fe->bending;
 
-		if (this_fe != fe &&
+		if (this_fe != fe && fe->lost_sync_count != -1 &&
                     frequency > f - stepsize && frequency < f + stepsize)
 		{
 			if (recursive % 2)
@@ -192,9 +192,6 @@ static
 void dvb_call_frontend_notifiers (struct dvb_frontend_data *fe,
 				  fe_status_t s)
 {
-        struct list_head *e;
-	struct dvb_fe_notifier_callbacks *c;
-
 	dprintk ("%s\n", __FUNCTION__);
 
 	if ((fe->status & FE_HAS_LOCK) && !(s & FE_HAS_LOCK))
@@ -211,10 +208,8 @@ void dvb_call_frontend_notifiers (struct dvb_frontend_data *fe,
 	/**
 	 *   now tell the Demux about the TS status changes...
 	 */
-	list_for_each (e, &fe->notifier_callbacks) {
-		c = list_entry (e, struct dvb_fe_notifier_callbacks, list_head);
-		c->callback (fe->status, c->data);
-	}
+	if (fe->frontend.notifier_callback)
+		fe->frontend.notifier_callback(fe->status, fe->frontend.notifier_data);
 }
 
 
@@ -296,38 +291,6 @@ int dvb_frontend_get_event (struct dvb_frontend_data *fe,
 }
 
 
-static
-struct dvb_frontend_parameters default_param [] = {
-	{						/* NTV on Astra */
-		frequency: 12669500-10600000,
-		inversion: INVERSION_OFF,
-		{ qpsk: { symbol_rate: 22000000, fec_inner: FEC_AUTO } }
-	},
-	{						/* Cable */
-		frequency: 394000000,
-		inversion: INVERSION_OFF,
-		{ qam:  { symbol_rate: 6900000,
-			  fec_inner: FEC_AUTO,
-			  modulation: QAM_64
-			}
-		}
-	},
-	{						/* DVB-T */
-		frequency: 730000000,
-		inversion: INVERSION_OFF,
-		{ ofdm: { bandwidth: BANDWIDTH_8_MHZ,
-			  code_rate_HP: FEC_2_3,
-			  code_rate_LP: FEC_1_2,
-			  constellation: QAM_16,
-			  transmission_mode: TRANSMISSION_MODE_2K,
-			  guard_interval: GUARD_INTERVAL_1_8,
-			  hierarchy_information: HIERARCHY_NONE
-			}
-		}
-	}
-};
-
-
 static
 int dvb_frontend_set_parameters (struct dvb_frontend_data *fe,
 				 struct dvb_frontend_parameters *param,
@@ -336,8 +299,6 @@ int dvb_frontend_set_parameters (struct dvb_frontend_data *fe,
 	struct dvb_frontend *frontend = &fe->frontend;
 	int err;
 
-	dvb_bend_frequency (fe, 0);
-
 	if (first_trial) {
 		fe->timeout_count = 0;
 		fe->lost_sync_count = 0;
@@ -349,6 +310,8 @@ int dvb_frontend_set_parameters (struct dvb_frontend_data *fe,
 			sizeof (struct dvb_frontend_parameters));
 	}
 
+	dvb_bend_frequency (fe, 0);
+
 	dprintk ("%s: f == %i, drift == %i\n",
 		 __FUNCTION__, param->frequency, fe->lnb_drift);
 
@@ -365,23 +328,12 @@ static
 void dvb_frontend_init (struct dvb_frontend_data *fe)
 {
 	struct dvb_frontend *frontend = &fe->frontend;
-	struct dvb_frontend_parameters *init_param;
 
-	printk ("DVB: initialising frontend %i:%i (%s)...\n",
-		frontend->i2c->adapter->num, frontend->i2c->id, fe->info->name);
+	dprintk ("DVB: initialising frontend %i:%i (%s)...\n",
+		 frontend->i2c->adapter->num, frontend->i2c->id,
+		 fe->info->name);
 
 	dvb_frontend_internal_ioctl (frontend, FE_INIT, NULL);
-
-	if (fe->info->type == FE_QPSK) {
-		dvb_frontend_internal_ioctl (frontend, FE_SET_VOLTAGE,
-					     (void*) SEC_VOLTAGE_13);
-		dvb_frontend_internal_ioctl (frontend, FE_SET_TONE,
-					     (void*) SEC_TONE_ON);
-	}
-
-	init_param = &default_param[fe->info->type-FE_QPSK];
-
-	dvb_frontend_set_parameters (fe, init_param, 1);
 }
 
 
@@ -464,7 +416,7 @@ int dvb_frontend_is_exiting (struct dvb_frontend_data *fe)
 	if (fe->exit)
 		return 1;
 
-	if (fe->dvbdev->users == 0 && dvb_shutdown_timeout)
+	if (fe->dvbdev->writers == 1)
 		if (jiffies - fe->release_jiffies > dvb_shutdown_timeout * HZ)
 			return 1;
 
@@ -482,13 +434,27 @@ int dvb_frontend_thread (void *data)
 	dprintk ("%s\n", __FUNCTION__);
 
 	lock_kernel ();
-	daemonize("kdvb-fe");
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,61))
+	daemonize ();
+#else
+	daemonize ("dvb fe");
+#endif
+/*	not needed anymore in 2.5.x, done in daemonize() */
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
+	reparent_to_init ();
+#endif
+
+	sigfillset (&current->blocked);
 	fe->thread = current;
+	snprintf (current->comm, sizeof (current->comm), "kdvb-fe-%i:%i",
+		  fe->frontend.i2c->adapter->num, fe->frontend.i2c->id);
 	unlock_kernel ();
 
 	dvb_call_frontend_notifiers (fe, 0);
 	dvb_frontend_init (fe);
 
+	fe->lost_sync_count = -1;
+
 	while (!dvb_frontend_is_exiting (fe)) {
 		up (&fe->sem);      /* is locked when we enter the thread... */
 
@@ -499,6 +465,9 @@ int dvb_frontend_thread (void *data)
 			return -ERESTARTSYS;
 		}
 
+		if (fe->lost_sync_count == -1)
+			continue;
+
 		if (dvb_frontend_is_exiting (fe))
 			break;
 
@@ -513,10 +482,14 @@ int dvb_frontend_thread (void *data)
 			fe->lost_sync_count = 0;
 		} else {
 			fe->lost_sync_count++;
-			if (fe->lost_sync_count < 10)  /* XXX FIXME CHECKME! */
+			if (!(fe->info->caps & FE_CAN_RECOVER)) {
+				if (!(fe->info->caps & FE_CAN_CLEAN_SETUP)) {
+					if (fe->lost_sync_count < 10)
 						continue;
+				}
 				dvb_frontend_recover (fe);
 				delay = HZ/5;
+			}
 			if (jiffies - fe->lost_sync_jiffies > TIMEOUT) {
 				s |= FE_TIMEDOUT;
 				if ((fe->status & FE_TIMEDOUT) == 0)
@@ -528,7 +501,9 @@ int dvb_frontend_thread (void *data)
 			dvb_frontend_add_event (fe, s);
 	};
 
+	if (dvb_shutdown_timeout)
 		dvb_frontend_internal_ioctl (&fe->frontend, FE_SLEEP, NULL); 
+
 	up (&fe->sem);
 	fe->thread = NULL;
 	return 0;
@@ -536,30 +511,36 @@ int dvb_frontend_thread (void *data)
 
 
 static
-void dvb_frontend_start (struct dvb_frontend_data *fe)
+void dvb_frontend_stop (struct dvb_frontend_data *fe)
 {
 	dprintk ("%s\n", __FUNCTION__);
 
-	if (!fe->exit && !fe->thread) {
-		if (down_interruptible (&fe->sem))
-			return;
-		kernel_thread (dvb_frontend_thread, fe, 0);
-	}
+	while (fe->thread) {
+		fe->exit = 1;
+		wake_up_interruptible (&fe->wait_queue);
+		current->state = TASK_INTERRUPTIBLE;
+		schedule_timeout (5);
+		if (signal_pending(current))
+			break;
+	};
 }
 
 
 static
-void dvb_frontend_stop (struct dvb_frontend_data *fe)
+void dvb_frontend_start (struct dvb_frontend_data *fe)
 {
 	dprintk ("%s\n", __FUNCTION__);
 
-	fe->exit = 1;
-	wake_up_interruptible (&fe->wait_queue);
+	if (fe->thread)
+		dvb_frontend_stop (fe);
 
-	while (fe->thread) {
-		current->state = TASK_INTERRUPTIBLE;
-		schedule_timeout (5);
-	};
+	if (down_interruptible (&fe->sem))
+		return;
+
+	fe->exit = 0;
+	fe->thread = (void*) ~0;
+
+	kernel_thread (dvb_frontend_thread, fe, 0);
 }
 
 
@@ -615,9 +596,6 @@ unsigned int dvb_frontend_poll (struct file *file, struct poll_table_struct *wai
 
 	dprintk ("%s\n", __FUNCTION__);
 
-	if (fe->events.eventw != fe->events.eventr)
-		return (POLLIN | POLLRDNORM | POLLPRI);
-
 	poll_wait (file, &fe->events.wait_queue, wait);
 
 	if (fe->events.eventw != fe->events.eventr)
@@ -639,10 +617,12 @@ int dvb_frontend_open (struct inode *inode, struct file *file)
 	if ((ret = dvb_generic_open (inode, file)) < 0)
 		return ret;
 
+	if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
 		dvb_frontend_start (fe);
 
 		/*  empty event queue */
 		fe->events.eventr = fe->events.eventw;
+	}
 	
 	return ret;
 }
@@ -656,6 +636,7 @@ int dvb_frontend_release (struct inode *inode, struct file *file)
 
 	dprintk ("%s\n", __FUNCTION__);
 
+	if ((file->f_flags & O_ACCMODE) != O_RDONLY)
 		fe->release_jiffies = jiffies;
 
 	return dvb_generic_release (inode, file);
@@ -673,7 +654,6 @@ dvb_add_frontend_ioctls (struct dvb_adapter *adapter,
 {
 	struct dvb_frontend_ioctl_data *ioctl;
         struct list_head *entry;
-	int frontend_count = 0;
 
 	dprintk ("%s\n", __FUNCTION__);
 
@@ -706,14 +686,12 @@ dvb_add_frontend_ioctls (struct dvb_adapter *adapter,
 			fe->frontend.before_ioctl = before_ioctl;
 			fe->frontend.after_ioctl = after_ioctl;
 			fe->frontend.before_after_data = before_after_data;
-			dvb_frontend_start (fe);
-			frontend_count++;
 		}
 	}
 
 	up (&frontend_mutex);
 
-	return frontend_count;
+	return 0;
 }
 
 
@@ -724,12 +702,11 @@ dvb_remove_frontend_ioctls (struct dvb_adapter *adapter,
                             int (*after_ioctl)  (struct dvb_frontend *frontend,
                                                  unsigned int cmd, void *arg))
 {
-        struct list_head *entry;
+	struct list_head *entry, *n;
 
 	dprintk ("%s\n", __FUNCTION__);
 
-	if (down_interruptible (&frontend_mutex))
-		return;
+	down (&frontend_mutex);
 
 	list_for_each (entry, &frontend_list) {
 		struct dvb_frontend_data *fe;
@@ -746,6 +723,22 @@ dvb_remove_frontend_ioctls (struct dvb_adapter *adapter,
 		}
 	}
 
+	list_for_each_safe (entry, n, &frontend_ioctl_list) {
+		struct dvb_frontend_ioctl_data *ioctl;
+
+		ioctl = list_entry (entry, struct dvb_frontend_ioctl_data, list_head);
+
+		if (ioctl->adapter == adapter &&
+		    ioctl->before_ioctl == before_ioctl &&
+		    ioctl->after_ioctl == after_ioctl)
+		{
+			list_del (&ioctl->list_head);
+			kfree (ioctl);
+			
+			break;
+		}
+	}
+
 	up (&frontend_mutex);
 }
 
@@ -755,6 +748,7 @@ dvb_add_frontend_notifier (struct dvb_adapter *adapter,
 			   void (*callback) (fe_status_t s, void *data),
 			   void *data)
 {
+	struct dvb_frontend_notifier_data *notifier;
 	struct list_head *entry;
 
 	dprintk ("%s\n", __FUNCTION__);
@@ -762,34 +756,35 @@ dvb_add_frontend_notifier (struct dvb_adapter *adapter,
 	if (down_interruptible (&frontend_mutex))
 		return -ERESTARTSYS;
 
-	list_for_each (entry, &frontend_list) {
-		struct dvb_frontend_data *fe;
-
-		fe = list_entry (entry, struct dvb_frontend_data, list_head);
-
-		if (fe->frontend.i2c->adapter == adapter) {
-			struct dvb_fe_notifier_callbacks *e;
+	notifier = kmalloc (sizeof(struct dvb_frontend_notifier_data), GFP_KERNEL);
 
-			e = kmalloc (sizeof(struct dvb_fe_notifier_callbacks),
-				     GFP_KERNEL);
-
-			if (!e) {
+	if (!notifier) {
 		up (&frontend_mutex);
 		return -ENOMEM;
 	}
 
-			e->callback = callback;
-			e->data = data;
-			list_add_tail (&e->list_head, &fe->notifier_callbacks);
+	notifier->adapter = adapter;
+	notifier->callback = callback;
+	notifier->data = data;
 
-			up (&frontend_mutex);
-			return 0;
+	list_add_tail (&notifier->list_head, &frontend_notifier_list);
+
+	list_for_each (entry, &frontend_list) {
+		struct dvb_frontend_data *fe;
+
+		fe = list_entry (entry, struct dvb_frontend_data, list_head);
+
+		if (fe->frontend.i2c->adapter == adapter &&
+		    fe->frontend.notifier_callback == NULL)
+		{
+			fe->frontend.notifier_callback = callback;
+			fe->frontend.notifier_data = data;
 		}
 	}
 
 	up (&frontend_mutex);
 
-	return -ENODEV;
+	return 0;
 }
 
 
@@ -797,31 +792,38 @@ void
 dvb_remove_frontend_notifier (struct dvb_adapter *adapter,
 			      void (*callback) (fe_status_t s, void *data))
 {
-        struct list_head *entry;
+	struct list_head *entry, *n;
 
 	dprintk ("%s\n", __FUNCTION__);
 
-	if (down_interruptible (&frontend_mutex))
-		return;
+	down (&frontend_mutex);
 
 	list_for_each (entry, &frontend_list) {
 		struct dvb_frontend_data *fe;
 
 		fe = list_entry (entry, struct dvb_frontend_data, list_head);
 
-		if (fe->frontend.i2c->adapter == adapter) {
-			struct list_head *e0, *n0;
-
-			list_for_each_safe (e0, n0, &fe->notifier_callbacks) {
-				struct dvb_fe_notifier_callbacks *e;
+		if (fe->frontend.i2c->adapter == adapter &&
+		    fe->frontend.notifier_callback == callback)
+		{
+			fe->frontend.notifier_callback = NULL;
 
-				e = list_entry (e0,
-						struct dvb_fe_notifier_callbacks,
-						list_head);
-				list_del (&e->list_head);
-				kfree (e);
 		}
 	}
+
+	list_for_each_safe (entry, n, &frontend_notifier_list) {
+		struct dvb_frontend_notifier_data *notifier;
+
+		notifier = list_entry (entry, struct dvb_frontend_notifier_data, list_head);
+
+		if (notifier->adapter == adapter &&
+		    notifier->callback == callback)
+		{
+			list_del (&notifier->list_head);
+			kfree (notifier);
+			
+			break;
+		}
 	}
 
 	up (&frontend_mutex);
@@ -849,7 +851,7 @@ dvb_register_frontend (int (*ioctl) (struct dvb_frontend *frontend,
 	struct list_head *entry;
 	struct dvb_frontend_data *fe;
 	static const struct dvb_device dvbdev_template = {
-		.users = 1,
+		.users = ~0,
 		.writers = 1,
 		.fops = &dvb_frontend_fops,
 		.kernel_ioctl = dvb_frontend_ioctl
@@ -873,7 +875,6 @@ dvb_register_frontend (int (*ioctl) (struct dvb_frontend *frontend,
 	init_MUTEX (&fe->events.sem);
 	fe->events.eventw = fe->events.eventr = 0;
 	fe->events.overflow = 0;
-	INIT_LIST_HEAD (&fe->notifier_callbacks);
 
 	fe->frontend.ioctl = ioctl;
 	fe->frontend.i2c = i2c;
@@ -891,13 +892,30 @@ dvb_register_frontend (int (*ioctl) (struct dvb_frontend *frontend,
 			fe->frontend.before_ioctl = ioctl->before_ioctl;
 			fe->frontend.after_ioctl = ioctl->after_ioctl;
 			fe->frontend.before_after_data = ioctl->before_after_data;
-			dvb_frontend_start (fe);
+			break;
+		}
+	}
+
+	list_for_each (entry, &frontend_notifier_list) {
+		struct dvb_frontend_notifier_data *notifier;
+
+		notifier = list_entry (entry,
+				       struct dvb_frontend_notifier_data,
+				       list_head);
+
+		if (notifier->adapter == i2c->adapter) {
+			fe->frontend.notifier_callback = notifier->callback;
+			fe->frontend.notifier_data = notifier->data;
 			break;
 		}
 	}
 
 	list_add_tail (&fe->list_head, &frontend_list);
 
+	printk ("DVB: registering frontend %i:%i (%s)...\n",
+		fe->frontend.i2c->adapter->num, fe->frontend.i2c->id,
+		fe->info->name);
+
 	dvb_register_device (i2c->adapter, &fe->dvbdev, &dvbdev_template,
 			     fe, DVB_DEVICE_FRONTEND);
 
@@ -915,8 +933,7 @@ int dvb_unregister_frontend (int (*ioctl) (struct dvb_frontend *frontend,
 
 	dprintk ("%s\n", __FUNCTION__);
 
-	if (down_interruptible (&frontend_mutex))
-		return -ERESTARTSYS;
+	down (&frontend_mutex);
 
 	list_for_each_safe (entry, n, &frontend_list) {
 		struct dvb_frontend_data *fe;
@@ -925,10 +942,8 @@ int dvb_unregister_frontend (int (*ioctl) (struct dvb_frontend *frontend,
 
 		if (fe->frontend.ioctl == ioctl && fe->frontend.i2c == i2c) {
 			dvb_unregister_device (fe->dvbdev);
-
 			list_del (entry);
 			up (&frontend_mutex);
-
 			dvb_frontend_stop (fe);
 			kfree (fe);
 			return 0;

drivers/media/dvb/dvb-core/dvb_frontend.h

@@ -52,8 +52,10 @@ struct dvb_frontend {
 	int (*before_ioctl) (struct dvb_frontend *frontend, unsigned int cmd, void *arg);
 	int (*ioctl) (struct dvb_frontend *frontend, unsigned int cmd, void *arg);
 	int (*after_ioctl) (struct dvb_frontend *frontend, unsigned int cmd, void *arg);
+	void (*notifier_callback) (fe_status_t s, void *data);
 	struct dvb_i2c_bus *i2c;
 	void *before_after_data;   /*  can be used by hardware module... */
+	void *notifier_data;       /*  can be used by hardware module... */
 	void *data;                /*  can be used by hardware module... */
 };
 

drivers/media/dvb/dvb-core/dvb_i2c.c

@@ -22,10 +22,13 @@
 #include <linux/slab.h>
 #include <linux/list.h>
 #include <linux/module.h>
+#include <linux/version.h>
 
-#include "compat.h"
-#include "dvb_i2c.h"
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,51)
+	#include "compat.h"
+#endif
 
+#include "dvb_i2c.h"
 
 struct dvb_i2c_device {
 	struct list_head list_head;
@@ -34,13 +37,11 @@ struct dvb_i2c_device {
 	void (*detach) (struct dvb_i2c_bus *i2c);
 };
 
-
 LIST_HEAD(dvb_i2c_buslist);
 LIST_HEAD(dvb_i2c_devicelist);
 
 DECLARE_MUTEX(dvb_i2c_mutex);
 
-
 static
 int register_i2c_client (struct dvb_i2c_bus *i2c, struct dvb_i2c_device *dev)
 {
@@ -63,11 +64,16 @@ int register_i2c_client (struct dvb_i2c_bus *i2c, struct dvb_i2c_device *dev)
 static
 void try_attach_device (struct dvb_i2c_bus *i2c, struct dvb_i2c_device *dev)
 {
-	if (try_module_get(dev->owner)) {
-		if (dev->attach(i2c) == 0)
-			register_i2c_client(i2c, dev);
-		else
-			module_put(dev->owner);
+	if (dev->owner) {
+		if (!try_module_get(dev->owner))
+			return;
+	}
+
+	if (dev->attach (i2c) == 0) {
+		register_i2c_client (i2c, dev);
+	} else {
+		if (dev->owner)
+			module_put (dev->owner);
 	}
 }
 
@@ -75,8 +81,10 @@ void try_attach_device (struct dvb_i2c_bus *i2c, struct dvb_i2c_device *dev)
 static
 void detach_device (struct dvb_i2c_bus *i2c, struct dvb_i2c_device *dev)
 {
-	dev->detach(i2c);
-	module_put(dev->owner);
+	dev->detach (i2c);
+
+	if (dev->owner)
+		module_put (dev->owner);
 }
 
 
@@ -84,25 +92,27 @@ static
 void unregister_i2c_client_from_bus (struct dvb_i2c_device *dev,
 				     struct dvb_i2c_bus *i2c)
 {
-	struct list_head *entry;
+	struct list_head *entry, *n;
 
-	list_for_each (entry, &i2c->client_list) {
+	list_for_each_safe (entry, n, &i2c->client_list) {
                 struct dvb_i2c_device *client;
 
 		client = list_entry (entry, struct dvb_i2c_device, list_head);
 
-		if (client->detach == dev->detach)
+		if (client->detach == dev->detach) {
+			list_del (entry);
 			detach_device (i2c, dev);
 		}
+	}
 }
 
 
 static
 void unregister_i2c_client_from_all_busses (struct dvb_i2c_device *dev)
 {
-	struct list_head *entry;
+	struct list_head *entry, *n;
 
-	list_for_each (entry, &dvb_i2c_buslist) {
+	list_for_each_safe (entry, n, &dvb_i2c_buslist) {
                 struct dvb_i2c_bus *i2c;
 
 		i2c = list_entry (entry, struct dvb_i2c_bus, list_head);
@@ -118,18 +128,15 @@ void unregister_all_clients_from_bus (struct dvb_i2c_bus *i2c)
 	struct list_head *entry, *n;
 
 	list_for_each_safe (entry, n, &(i2c->client_list)) {
-		struct dvb_i2c_device *client;
-
-		client = list_entry (entry, struct dvb_i2c_device, list_head);
+		struct dvb_i2c_device *dev;
 
-		detach_device (i2c, client);
+		dev = list_entry (entry, struct dvb_i2c_device, list_head);
 
-		list_del (entry);
+		unregister_i2c_client_from_bus (dev, i2c);
 	}
 }
 
 
-
 static
 void probe_device_on_all_busses (struct dvb_i2c_device *dev)
 {
@@ -160,15 +167,38 @@ void probe_devices_on_bus (struct dvb_i2c_bus *i2c)
 }
 
 
-struct dvb_i2c_bus*
-dvb_register_i2c_bus (int (*xfer) (struct dvb_i2c_bus *i2c,
-				   struct i2c_msg msgs[], int num),
-		      void *data,
+static
+struct dvb_i2c_bus* dvb_find_i2c_bus (int (*xfer) (struct dvb_i2c_bus *i2c,
+		                                   const struct i2c_msg msgs[],
+						   int num),
 				      struct dvb_adapter *adapter,
 				      int id)
 {
+	struct list_head *entry;
+
+	list_for_each (entry, &dvb_i2c_buslist) {
 		struct dvb_i2c_bus *i2c;
 
+		i2c = list_entry (entry, struct dvb_i2c_bus, list_head);
+
+		if (i2c->xfer == xfer && i2c->adapter == adapter && i2c->id == id)
+			return i2c;
+	}
+
+	return NULL;
+}
+
+
+struct dvb_i2c_bus*
+dvb_register_i2c_bus (int (*xfer) (struct dvb_i2c_bus *i2c,
+				   const struct i2c_msg *msgs, int num),
+		      void *data, struct dvb_adapter *adapter, int id)
+{
+	struct dvb_i2c_bus *i2c;
+
+	if (down_interruptible (&dvb_i2c_mutex))
+		return NULL;
+
 	if (!(i2c = kmalloc (sizeof (struct dvb_i2c_bus), GFP_KERNEL)))
 		return NULL;
 
@@ -184,54 +214,27 @@ dvb_register_i2c_bus (int (*xfer) (struct dvb_i2c_bus *i2c,
 
 	list_add_tail (&i2c->list_head, &dvb_i2c_buslist);
 
-	return i2c;
-}
-
-
-struct dvb_i2c_bus*
-dvb_find_i2c_bus (int (*xfer) (struct dvb_i2c_bus *i2c,
-                                   struct i2c_msg msgs[], int num),
-                  struct dvb_adapter *adapter,
-		  int id)
-{
-	struct list_head *entry;
-
-	if (down_interruptible (&dvb_i2c_mutex))
-		return NULL;
-
-	list_for_each (entry, &dvb_i2c_buslist) {
-		struct dvb_i2c_bus *i2c;
-
-		i2c = list_entry (entry, struct dvb_i2c_bus, list_head);
-
-		if (i2c->xfer == xfer &&
-		    i2c->adapter == adapter &&
-		    i2c->id == id)
-		{
-			up (&dvb_i2c_mutex);
-			return i2c;
-		}
-	}
-
 	up (&dvb_i2c_mutex);
 
-	return NULL;
+	return i2c;
 }
 
 
-
 void dvb_unregister_i2c_bus (int (*xfer) (struct dvb_i2c_bus *i2c,
-					  struct i2c_msg msgs[], int num),
-			     struct dvb_adapter *adapter,
-			     int id)
+					  const struct i2c_msg msgs[], int num),
+			     struct dvb_adapter *adapter, int id)
 {
-	struct dvb_i2c_bus *i2c = dvb_find_i2c_bus (xfer, adapter, id);
+	struct dvb_i2c_bus *i2c;
+
+	down (&dvb_i2c_mutex);
 
-	if (i2c) {
+	if ((i2c = dvb_find_i2c_bus (xfer, adapter, id))) {
 		unregister_all_clients_from_bus (i2c);
 		list_del (&i2c->list_head);
 		kfree (i2c);
 	}
+
+	up (&dvb_i2c_mutex);
 }
 
 
@@ -267,8 +270,7 @@ int dvb_unregister_i2c_device (int (*attach) (struct dvb_i2c_bus *i2c))
 {
 	struct list_head *entry, *n;
 
-	if (down_interruptible (&dvb_i2c_mutex))
-		return -ERESTARTSYS;
+	down (&dvb_i2c_mutex);
 
 	list_for_each_safe (entry, n, &dvb_i2c_devicelist) {
 		struct dvb_i2c_device *dev;

drivers/media/dvb/dvb-core/dvb_i2c.h

@@ -30,7 +30,9 @@
 
 struct dvb_i2c_bus {
 	struct list_head list_head;
-	int (*xfer) (struct dvb_i2c_bus *i2c, struct i2c_msg msgs[], int num);
+	int (*xfer) (struct dvb_i2c_bus *i2c, 
+		     const struct i2c_msg msgs[],
+		     int num);
 	void *data;
 	struct dvb_adapter *adapter;
 	int id;
@@ -38,17 +40,16 @@ struct dvb_i2c_bus {
 };
 
 
-extern 
-struct dvb_i2c_bus* dvb_register_i2c_bus (int (*xfer) (struct dvb_i2c_bus *i2c,
-						       struct i2c_msg msgs[],
-						       int num),
+extern struct dvb_i2c_bus*
+dvb_register_i2c_bus (int (*xfer) (struct dvb_i2c_bus *i2c,
+				   const struct i2c_msg *msgs, int num),
 		      void *data,
 		      struct dvb_adapter *adapter,
 		      int id);
 
 extern
 void dvb_unregister_i2c_bus (int (*xfer) (struct dvb_i2c_bus *i2c,
-					  struct i2c_msg msgs[], int num),
+					  const struct i2c_msg msgs[], int num),
 			     struct dvb_adapter *adapter,
 			     int id);
 

drivers/media/dvb/dvb-core/dvb_ksyms.c

@@ -8,6 +8,69 @@
 #include "dvb_demux.h"
 #include "dvb_net.h"
 
+/* if the miracle happens and "generic_usercopy()" is included into
+   the kernel, then this can vanish. please don't make the mistake and
+   define this as video_usercopy(). this will introduce a dependecy
+   to the v4l "videodev.o" module, which is unnecessary for some
+   cards (ie. the budget dvb-cards don't need the v4l module...) */
+int dvb_usercopy(struct inode *inode, struct file *file,
+	             unsigned int cmd, unsigned long arg,
+		     int (*func)(struct inode *inode, struct file *file,
+		     unsigned int cmd, void *arg))
+{
+        char    sbuf[128];
+        void    *mbuf = NULL;
+        void    *parg = NULL;
+        int     err  = -EINVAL;
+
+        /*  Copy arguments into temp kernel buffer  */
+        switch (_IOC_DIR(cmd)) {
+        case _IOC_NONE:
+                parg = (void *)arg;
+                break;
+        case _IOC_READ: /* some v4l ioctls are marked wrong ... */
+        case _IOC_WRITE:
+        case (_IOC_WRITE | _IOC_READ):
+                if (_IOC_SIZE(cmd) <= sizeof(sbuf)) {
+                        parg = sbuf;
+                } else {
+                        /* too big to allocate from stack */
+                        mbuf = kmalloc(_IOC_SIZE(cmd),GFP_KERNEL);
+                        if (NULL == mbuf)
+                                return -ENOMEM;
+                        parg = mbuf;
+                }
+
+                err = -EFAULT;
+                if (copy_from_user(parg, (void *)arg, _IOC_SIZE(cmd)))
+                        goto out;
+                break;
+        }
+
+        /* call driver */
+        if ((err = func(inode, file, cmd, parg)) == -ENOIOCTLCMD)
+                err = -EINVAL;
+
+        if (err < 0)
+                goto out;
+
+        /*  Copy results into user buffer  */
+        switch (_IOC_DIR(cmd))
+        {
+        case _IOC_READ:
+        case (_IOC_WRITE | _IOC_READ):
+                if (copy_to_user((void *)arg, parg, _IOC_SIZE(cmd)))
+                        err = -EFAULT;
+                break;
+        }
+
+out:
+        if (mbuf)
+                kfree(mbuf);
+
+        return err;
+}
+EXPORT_SYMBOL(dvb_usercopy);
 
 EXPORT_SYMBOL(dvb_dmxdev_init);
 EXPORT_SYMBOL(dvb_dmxdev_release);
@@ -15,6 +78,7 @@ EXPORT_SYMBOL(dvb_dmx_init);
 EXPORT_SYMBOL(dvb_dmx_release);
 EXPORT_SYMBOL(dvb_dmx_swfilter_packet);
 EXPORT_SYMBOL(dvb_dmx_swfilter_packets);
+EXPORT_SYMBOL(dvb_dmx_swfilter);
 
 EXPORT_SYMBOL(dvb_register_frontend);
 EXPORT_SYMBOL(dvb_unregister_frontend);
@@ -39,11 +103,7 @@ EXPORT_SYMBOL(dvb_generic_ioctl);
 EXPORT_SYMBOL(dvb_generic_open);
 EXPORT_SYMBOL(dvb_generic_release);
 
-EXPORT_SYMBOL(dvb_filter_ipack_init);
-EXPORT_SYMBOL(dvb_filter_ipack_reset);
-EXPORT_SYMBOL(dvb_filter_ipack_free);
-EXPORT_SYMBOL(dvb_filter_ipack_flush);
-EXPORT_SYMBOL(dvb_filter_instant_repack);
 EXPORT_SYMBOL(dvb_filter_pes2ts_init);
 EXPORT_SYMBOL(dvb_filter_pes2ts);
+EXPORT_SYMBOL(dvb_filter_get_ac3info);
 

drivers/media/dvb/dvb-core/dvb_net.c

@@ -3,29 +3,52 @@
  *
  * Copyright (C) 2001 Convergence integrated media GmbH
  *                    Ralph Metzler <ralph@convergence.de>
+ * Copyright (C) 2002 Ralph Metzler <rjkm@metzlerbros.de>
  *
  * 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
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
  * 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
+ *
+ * You should have received a copy of the GNU 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.
+ * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
  * 
  */
 
-#include <linux/dvb/net.h>
-
 #include <asm/uaccess.h>
-#include "demux.h"
+
+#include <linux/dvb/net.h>
+#include "dvb_demux.h"
 #include "dvb_net.h"
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,51)
+	#include "compat.h"
+#endif
+
+#define DVB_NET_MULTICAST_MAX 10
+
+struct dvb_net_priv {
+        struct net_device_stats stats;
+        char name[6];
+	u16 pid;
+        struct dmx_demux_s *demux;
+	dmx_section_feed_t *secfeed;
+	dmx_section_filter_t *secfilter;
+	int multi_num;
+	dmx_section_filter_t *multi_secfilter[DVB_NET_MULTICAST_MAX];
+	unsigned char multi_macs[DVB_NET_MULTICAST_MAX][6];
+	int mode;
+};
+
 /*
  *	Determine the packet's protocol ID. The rule here is that we 
  *	assume 802.3 if the type field is short enough to be a length.
@@ -73,7 +96,7 @@ unsigned short my_eth_type_trans(struct sk_buff *skb, struct net_device *dev)
 }
 
 static void 
-dvb_net_sec(struct net_device *dev, u8 *pkt, int pkt_len)
+dvb_net_sec(struct net_device *dev, const u8 *pkt, int pkt_len)
 {
         u8 *eth;
         struct sk_buff *skb;
@@ -86,7 +109,7 @@ dvb_net_sec(struct net_device *dev, u8 *pkt, int pkt_len)
         if (skb == NULL) {
                 printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n",
                        dev->name);
-                ((dvb_net_priv_t *)dev->priv)->stats.rx_dropped++;
+                ((struct dvb_net_priv *)dev->priv)->stats.rx_dropped++;
                 return;
         }
         eth=(u8 *) skb_put(skb, pkt_len+2);
@@ -104,15 +127,14 @@ dvb_net_sec(struct net_device *dev, u8 *pkt, int pkt_len)
 	skb->protocol=my_eth_type_trans(skb,dev);
         skb->dev=dev;
         
-        ((dvb_net_priv_t *)dev->priv)->stats.rx_packets++;
-        ((dvb_net_priv_t *)dev->priv)->stats.rx_bytes+=skb->len;
-        //sti();
+        ((struct dvb_net_priv *)dev->priv)->stats.rx_packets++;
+        ((struct dvb_net_priv *)dev->priv)->stats.rx_bytes+=skb->len;
         netif_rx(skb);
 }
  
 static int 
-dvb_net_callback(u8 *buffer1, size_t buffer1_len,
-		 u8 *buffer2, size_t buffer2_len,
+dvb_net_callback(const u8 *buffer1, size_t buffer1_len,
+		 const u8 *buffer2, size_t buffer2_len,
 		 dmx_section_filter_t *filter,
 		 dmx_success_t success)
 {
@@ -130,18 +152,21 @@ dvb_net_tx(struct sk_buff *skb, struct net_device *dev)
 	return 0;
 }
 
-#define MASK 0x00;
+static u8 mask_normal[6]={0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+static u8 mask_allmulti[6]={0xff, 0xff, 0xff, 0x00, 0x00, 0x00};
+static u8 mac_allmulti[6]={0x01, 0x00, 0x5e, 0x00, 0x00, 0x00};
+static u8 mask_promisc[6]={0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
 
 static int 
 dvb_net_filter_set(struct net_device *dev, 
 		   dmx_section_filter_t **secfilter,
-		   unsigned char *mac)
+		   u8 *mac, u8 *mac_mask)
 {
-	dvb_net_priv_t *priv=(dvb_net_priv_t *)dev->priv;
+	struct dvb_net_priv *priv = (struct dvb_net_priv*) dev->priv;
 	int ret;
 
 	*secfilter=0;
-	ret=priv->secfeed->allocate_filter(priv->secfeed, secfilter);
+	ret = priv->secfeed->allocate_filter(priv->secfeed, secfilter);
 	if (ret<0) {
 		printk("%s: could not get filter\n", dev->name);
 		return ret;
@@ -149,25 +174,26 @@ dvb_net_filter_set(struct net_device *dev,
 
 	(*secfilter)->priv=(void *) dev;
 
-	memset((*secfilter)->filter_value, 0, DMX_MAX_FILTER_SIZE);
-	memset((*secfilter)->filter_mask , 0, DMX_MAX_FILTER_SIZE);
+	memset((*secfilter)->filter_value, 0x00, DMX_MAX_FILTER_SIZE);
+	memset((*secfilter)->filter_mask,  0x00, DMX_MAX_FILTER_SIZE);
+	memset((*secfilter)->filter_mode,  0xff, DMX_MAX_FILTER_SIZE);
 
 	(*secfilter)->filter_value[0]=0x3e;
-	(*secfilter)->filter_mask[0]=MASK;
+	(*secfilter)->filter_mask[0]=0xff;
 
 	(*secfilter)->filter_value[3]=mac[5];
-	(*secfilter)->filter_mask[3]=MASK;
+	(*secfilter)->filter_mask[3]=mac_mask[5];
 	(*secfilter)->filter_value[4]=mac[4];
-	(*secfilter)->filter_mask[4]=MASK;
+	(*secfilter)->filter_mask[4]=mac_mask[4];
 	(*secfilter)->filter_value[8]=mac[3];
-	(*secfilter)->filter_mask[8]=MASK;
+	(*secfilter)->filter_mask[8]=mac_mask[3];
 	(*secfilter)->filter_value[9]=mac[2];
-	(*secfilter)->filter_mask[9]=MASK;
+	(*secfilter)->filter_mask[9]=mac_mask[2];
 
 	(*secfilter)->filter_value[10]=mac[1];
-	(*secfilter)->filter_mask[10]=MASK;
+	(*secfilter)->filter_mask[10]=mac_mask[1];
 	(*secfilter)->filter_value[11]=mac[0];
-	(*secfilter)->filter_mask[11]=MASK;
+	(*secfilter)->filter_mask[11]=mac_mask[0];
 
 	printk("%s: filter mac=%02x %02x %02x %02x %02x %02x\n", 
 	       dev->name, mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
@@ -178,9 +204,9 @@ static int
 dvb_net_feed_start(struct net_device *dev)
 {
 	int ret, i;
-	dvb_net_priv_t *priv=(dvb_net_priv_t *)dev->priv;
-        dmx_demux_t *demux=priv->demux;
-        unsigned char *mac=(unsigned char *) dev->dev_addr;
+	struct dvb_net_priv *priv = (struct dvb_net_priv*) dev->priv;
+        dmx_demux_t *demux = priv->demux;
+        unsigned char *mac = (unsigned char *) dev->dev_addr;
 		
 	priv->secfeed=0;
 	priv->secfilter=0;
@@ -200,28 +226,41 @@ dvb_net_feed_start(struct net_device *dev)
 		priv->secfeed=0;
 		return ret;
 	}
-	MOD_INC_USE_COUNT;
+	/* fixme: is this correct? */
+	try_module_get(THIS_MODULE);
+
+	if (priv->mode<3) 
+		dvb_net_filter_set(dev, &priv->secfilter, mac, mask_normal);
 
-	dvb_net_filter_set(dev, &priv->secfilter, mac);
+	switch (priv->mode) {
+	case 1:
 		for (i=0; i<priv->multi_num; i++) 
-		dvb_net_filter_set(dev, &priv->secfilter,
-				   priv->multi_macs[i]);
+			dvb_net_filter_set(dev, &priv->multi_secfilter[i],
+					   priv->multi_macs[i], mask_normal);
+		break;
+	case 2:
+		priv->multi_num=1;
+		dvb_net_filter_set(dev, &priv->multi_secfilter[0], mac_allmulti, mask_allmulti);
+		break;
+	case 3:
+		priv->multi_num=0;
+		dvb_net_filter_set(dev, &priv->secfilter, mac, mask_promisc);
+		break;
+	}
 	
 	priv->secfeed->start_filtering(priv->secfeed);
-	printk("%s: feed_started\n", dev->name);
 	return 0;
 }
 
 static void
 dvb_net_feed_stop(struct net_device *dev)
 {
-	dvb_net_priv_t *priv=(dvb_net_priv_t *)dev->priv;
+	struct dvb_net_priv *priv = (struct dvb_net_priv*) dev->priv;
 	int i;
 
         if (priv->secfeed) {
 	        if (priv->secfeed->is_filtering)
 		        priv->secfeed->stop_filtering(priv->secfeed);
-		printk("%s: feed_stopped\n", dev->name);
 	        if (priv->secfilter)
 		        priv->secfeed->
 			        release_filter(priv->secfeed, 
@@ -238,62 +277,70 @@ dvb_net_feed_stop(struct net_device *dev)
 		priv->demux->
 		        release_section_feed(priv->demux, priv->secfeed);
 		priv->secfeed=0;
-		MOD_DEC_USE_COUNT;
+		/* fixme: is this correct? */
+		module_put(THIS_MODULE);
 	} else
 		printk("%s: no feed to stop\n", dev->name);
 }
 
 static int
-dvb_set_mc_filter(struct net_device *dev, struct dev_mc_list *mc)
+dvb_add_mc_filter(struct net_device *dev, struct dev_mc_list *mc)
 {
-	dvb_net_priv_t *priv=(dvb_net_priv_t *)dev->priv;
+	struct dvb_net_priv *priv = (struct dvb_net_priv*) dev->priv;
+	int ret;
 
-	if (priv->multi_num==DVB_NET_MULTICAST_MAX)
+	if (priv->multi_num >= DVB_NET_MULTICAST_MAX)
 		return -ENOMEM;
 
-	printk("%s: set_mc_filter %d: %02x %02x %02x %02x %02x %02x\n", 
-	       dev->name, 
-	       priv->multi_num,
-	       mc->dmi_addr[0],
-	       mc->dmi_addr[1],
-	       mc->dmi_addr[2],
-	       mc->dmi_addr[3],
-	       mc->dmi_addr[4],
-	       mc->dmi_addr[5]);
+	ret = memcmp(priv->multi_macs[priv->multi_num], mc->dmi_addr, 6);
 	memcpy(priv->multi_macs[priv->multi_num], mc->dmi_addr, 6);
 
 	priv->multi_num++;
-	return 0;
+
+	return ret;
 }
 
 static void
 dvb_net_set_multi(struct net_device *dev)
 {
-	dvb_net_priv_t *priv=(dvb_net_priv_t *)dev->priv;
-
-	printk("%s: set_multi()\n", dev->name);
-	dvb_net_feed_stop(dev);
-
-	if (dev->flags&IFF_PROMISC) {
-		/* Enable promiscuous mode */
-		printk("%s: promiscuous mode\n", dev->name);
-	} else if((dev->flags&IFF_ALLMULTI)) {
-		/* Disable promiscuous mode, use normal mode. */
-		printk("%s: normal mode\n", dev->name);
-	} else if(dev->mc_count) {
-                int mci;
+	struct dvb_net_priv *priv = (struct dvb_net_priv*) dev->priv;
 	struct dev_mc_list *mc;
-		
-		printk("%s: set_mc_list, %d entries\n", 
-		       dev->name, dev->mc_count);
-		priv->multi_num=0;
-                for (mci=0, mc=dev->mc_list; 
-		     mci<dev->mc_count;
-		     mc=mc->next, mci++) {
-			dvb_set_mc_filter(dev, mc);
-                } 
+	int mci;
+	int update = 0;
+	
+	if(dev->flags & IFF_PROMISC) {
+//	printk("%s: promiscuous mode\n", dev->name);
+		if(priv->mode != 3)
+			update = 1;
+		priv->mode = 3;
+	} else if(dev->flags & IFF_ALLMULTI) {
+//	printk("%s: allmulti mode\n", dev->name);
+		if(priv->mode != 2)
+			update = 1;
+		priv->mode = 2;
+	} else if(dev->mc_count > 0) {
+//	printk("%s: set_mc_list, %d entries\n", 
+//	       dev->name, dev->mc_count);
+		if(priv->mode != 1)
+			update = 1;
+		priv->mode = 1;
+		priv->multi_num = 0;
+		for (mci = 0, mc=dev->mc_list; 
+		     mci < dev->mc_count;
+		     mc=mc->next, mci++)
+			if(dvb_add_mc_filter(dev, mc) != 0)
+				update = 1;
+	} else {
+		if(priv->mode != 0)
+			update = 1;
+		priv->mode = 0;
 	}
+
+	if(netif_running(dev) != 0 && update > 0)
+	{
+		dvb_net_feed_stop(dev);
 		dvb_net_feed_start(dev);
+	}
 }
 
 static int
@@ -308,9 +355,11 @@ static int
 dvb_net_set_mac(struct net_device *dev, void *p)
 {
 	struct sockaddr *addr=p;
+	int update;
 
+	update = memcmp(dev->dev_addr, addr->sa_data, dev->addr_len);
 	memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
-	if (netif_running(dev)) {
+	if (netif_running(dev) != 0 && update > 0) {
 		dvb_net_feed_stop(dev);
 		dvb_net_feed_start(dev);
 	}
@@ -335,15 +384,13 @@ dvb_net_stop(struct net_device *dev)
 static struct net_device_stats *
 dvb_net_get_stats(struct net_device *dev)
 {
-        return &((dvb_net_priv_t *)dev->priv)->stats;
+        return &((struct dvb_net_priv*) dev->priv)->stats;
 }
 
 
 static int
 dvb_net_init_dev(struct net_device *dev)
 {
-	printk("dvb_net: dvb_net_init_dev()\n");
-
 	ether_setup(dev);
 
 	dev->open		= dvb_net_open;
@@ -354,6 +401,7 @@ dvb_net_init_dev(struct net_device *dev)
 	dev->set_config         = dvb_net_set_config;
 	dev->set_mac_address    = dvb_net_set_mac;
 	dev->mtu		= 4096;
+	dev->mc_count           = 0;
 
 	dev->flags             |= IFF_NOARP;
 	dev->hard_header_cache  = NULL;
@@ -364,7 +412,7 @@ dvb_net_init_dev(struct net_device *dev)
 }
 
 static int 
-get_if(dvb_net_t *dvbnet)
+get_if(struct dvb_net *dvbnet)
 {
 	int i;
 
@@ -379,10 +427,11 @@ get_if(dvb_net_t *dvbnet)
 
 
 int 
-dvb_net_add_if(dvb_net_t *dvbnet, u16 pid)
+dvb_net_add_if(struct dvb_net *dvbnet, u16 pid)
 {
         struct net_device *net;
 	dmx_demux_t *demux;
+	struct dvb_net_priv *priv;
 	int result;
 	int if_num;
  
@@ -402,25 +451,29 @@ dvb_net_add_if(dvb_net_t *dvbnet, u16 pid)
         net->name[5]=if_num+0x30;
         net->next      = NULL;
         net->init      = dvb_net_init_dev;
-        net->priv      = kmalloc(sizeof(dvb_net_priv_t), GFP_KERNEL);
+        net->priv      = kmalloc(sizeof(struct dvb_net_priv), GFP_KERNEL);
 	if (net->priv == NULL)
 			return -ENOMEM;
-	memset(net->priv, 0, sizeof(dvb_net_priv_t));
 
-        ((dvb_net_priv_t *)net->priv)->demux=demux;
-        ((dvb_net_priv_t *)net->priv)->pid=pid;
+	priv = net->priv;
+	memset(priv, 0, sizeof(struct dvb_net_priv));
+        priv->demux = demux;
+        priv->pid = pid;
+	priv->mode = 0;
 
-        net->base_addr=pid;
+        net->base_addr = pid;
                 
 	if ((result = register_netdev(net)) < 0) {
 		return result;
 	}
-	MOD_INC_USE_COUNT;
+	/* fixme: is this correct? */
+	try_module_get(THIS_MODULE);
+
         return if_num;
 }
 
 int 
-dvb_net_remove_if(dvb_net_t *dvbnet, int num)
+dvb_net_remove_if(struct dvb_net *dvbnet, int num)
 {
 	if (!dvbnet->state[num])
 		return -EINVAL;
@@ -428,15 +481,17 @@ dvb_net_remove_if(dvb_net_t *dvbnet, int num)
         kfree(dvbnet->device[num].priv);
         unregister_netdev(&dvbnet->device[num]);
 	dvbnet->state[num]=0;
-	MOD_DEC_USE_COUNT;
+	/* fixme: is this correct? */
+	module_put(THIS_MODULE);
+
 	return 0;
 }
 
-int dvb_net_ioctl(struct inode *inode, struct file *file, 
+int dvb_net_do_ioctl(struct inode *inode, struct file *file, 
 		  unsigned int cmd, void *parg)
 {
-	struct dvb_device *dvbdev=(struct dvb_device *) file->private_data;
-	dvb_net_t *dvbnet=(dvb_net_t *) dvbdev->priv;
+	struct dvb_device *dvbdev = (struct dvb_device *) file->private_data;
+	struct dvb_net *dvbnet = (struct dvb_net *) dvbdev->priv;
 
 	if (((file->f_flags&O_ACCMODE)==O_RDONLY))
 		return -EPERM;
@@ -453,6 +508,21 @@ int dvb_net_ioctl(struct inode *inode, struct file *file,
 		dvbnetif->if_num=result;
 		break;
 	}
+	case NET_GET_IF:
+	{
+		struct net_device *netdev;
+		struct dvb_net_priv *priv_data;
+		struct dvb_net_if *dvbnetif=(struct dvb_net_if *)parg;
+
+		if (dvbnetif->if_num >= dvbnet->dev_num ||
+		    !dvbnet->state[dvbnetif->if_num])
+			return -EFAULT;
+
+		netdev=(struct net_device*)&dvbnet->device[dvbnetif->if_num];
+		priv_data=(struct dvb_net_priv*)netdev->priv;
+		dvbnetif->pid=priv_data->pid;
+		break;
+	}
 	case NET_REMOVE_IF:
 		return dvb_net_remove_if(dvbnet, (int) parg);
 	default:
@@ -461,11 +531,21 @@ int dvb_net_ioctl(struct inode *inode, struct file *file,
 	return 0;
 }
 
+static int 
+dvb_net_ioctl(struct inode *inode, struct file *file,
+	      unsigned int cmd, unsigned long arg)
+{
+	return dvb_usercopy(inode, file, cmd, arg, dvb_net_do_ioctl);
+}
+
 static struct file_operations dvb_net_fops = {
 	.owner = THIS_MODULE,
-	.ioctl		= dvb_generic_ioctl,
+        .read =	0,
+	.write = 0,
+	.ioctl = dvb_net_ioctl,
 	.open =	dvb_generic_open,
 	.release = dvb_generic_release,
+	.poll =	0,
 };
 
 static struct dvb_device dvbdev_net = {
@@ -473,11 +553,10 @@ static struct dvb_device dvbdev_net = {
         .users = 1,
         .writers = 1,
         .fops = &dvb_net_fops,
-	.kernel_ioctl	= dvb_net_ioctl,
 };
 
 void
-dvb_net_release(dvb_net_t *dvbnet)
+dvb_net_release(struct dvb_net *dvbnet)
 {
 	int i;
 
@@ -490,15 +569,19 @@ dvb_net_release(dvb_net_t *dvbnet)
 }
 
 int
-dvb_net_init(struct dvb_adapter *adap, dvb_net_t *dvbnet, dmx_demux_t *demux)
+dvb_net_init(struct dvb_adapter *adap, struct dvb_net *dvbnet, dmx_demux_t *dmx)
 {
 	int i;
 		
-	dvbnet->demux=demux;
-	dvbnet->dev_num=DVB_NET_DEVICES_MAX;
+	dvbnet->demux = dmx;
+	dvbnet->dev_num = DVB_NET_DEVICES_MAX;
+
 	for (i=0; i<dvbnet->dev_num; i++) 
-		dvbnet->state[i]=0;
-	dvb_register_device(adap, &dvbnet->dvbdev, &dvbdev_net, dvbnet, DVB_DEVICE_NET);
+		dvbnet->state[i] = 0;
+
+	dvb_register_device (adap, &dvbnet->dvbdev, &dvbdev_net,
+			     dvbnet, DVB_DEVICE_NET);
+
 	return 0;
 }
 

drivers/media/dvb/dvb-core/dvb_net.h

@@ -32,23 +32,9 @@
 #include "dvbdev.h"
 
 #define DVB_NET_DEVICES_MAX 10
-#define DVB_NET_MULTICAST_MAX 10
 
-typedef struct dvb_net_priv_s {
-        struct net_device_stats stats;
-        char name[6];
-	u16 pid;
-        dmx_demux_t *demux;
-	dmx_section_feed_t *secfeed;
-	dmx_section_filter_t *secfilter;
-	int multi_num;
-	dmx_section_filter_t *multi_secfilter[DVB_NET_MULTICAST_MAX];
-	unsigned char multi_macs[DVB_NET_MULTICAST_MAX][6];
-} dvb_net_priv_t;
-
-typedef struct dvb_net_s {
+typedef struct dvb_net {
 	struct dvb_device *dvbdev;
-
 	int card_num;
 	int dev_num;
 	struct net_device device[DVB_NET_DEVICES_MAX];
@@ -57,7 +43,8 @@ typedef struct dvb_net_s {
 } dvb_net_t;
 
 
-void dvb_net_release(dvb_net_t *);
-int  dvb_net_init(struct dvb_adapter *, dvb_net_t *, dmx_demux_t *);
+void dvb_net_release(struct dvb_net *);
+int  dvb_net_init(struct dvb_adapter *, struct dvb_net *, dmx_demux_t *);
 
 #endif
+

drivers/media/dvb/dvb-core/dvb_ringbuffer.c

+/*
+ *
+ * dvb_ringbuffer.c: ring buffer implementation for the dvb driver
+ *
+ * Copyright (C) 2003 Oliver Endriss 
+ * 
+ * based on code originally found in av7110.c:
+ * Copyright (C) 1999-2002 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 General Public License
+ * as published by the Free Software Foundation; either version 2
+ * 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 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.
+ * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
+ * 
+ *
+ * the project's page is at http://www.linuxtv.org/dvb/
+ */
+
+
+
+#define __KERNEL_SYSCALLS__
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/module.h>
+#include <asm/uaccess.h>
+
+#include "dvb_ringbuffer.h"
+
+
+
+void dvb_ringbuffer_init(dvb_ringbuffer_t *rbuf, void *data, size_t len)
+{
+        rbuf->pread=rbuf->pwrite=0;
+        rbuf->data=data;
+        rbuf->size=len;
+
+        init_waitqueue_head(&rbuf->queue);
+
+        spin_lock_init(&(rbuf->lock));
+        rbuf->lock=SPIN_LOCK_UNLOCKED;
+}
+
+
+
+int dvb_ringbuffer_empty(dvb_ringbuffer_t *rbuf)
+{
+        return (rbuf->pread==rbuf->pwrite);
+}
+
+
+
+ssize_t dvb_ringbuffer_free(dvb_ringbuffer_t *rbuf)
+{
+        ssize_t free;
+  
+        free = rbuf->pread - rbuf->pwrite;
+        if (free <= 0)
+                free += rbuf->size;
+        return free-1;
+}
+
+
+
+ssize_t dvb_ringbuffer_avail(dvb_ringbuffer_t *rbuf)
+{
+        ssize_t avail;
+  
+        avail = rbuf->pwrite - rbuf->pread;
+        if (avail < 0)
+                avail += rbuf->size;
+        return avail;
+}
+
+
+
+void dvb_ringbuffer_flush(dvb_ringbuffer_t *rbuf)
+{
+        rbuf->pread = rbuf->pwrite;
+}
+
+
+
+void dvb_ringbuffer_flush_spinlock_wakeup(dvb_ringbuffer_t *rbuf)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&rbuf->lock, flags);
+        dvb_ringbuffer_flush(rbuf);
+        spin_unlock_irqrestore(&rbuf->lock, flags);
+
+        wake_up(&rbuf->queue);
+}
+
+
+
+ssize_t dvb_ringbuffer_read(dvb_ringbuffer_t *rbuf, u8 *buf, size_t len, int usermem)
+{
+        size_t todo = len;
+        size_t split;
+
+        split = (rbuf->pread + len > rbuf->size) ? rbuf->size - rbuf->pread : 0;
+        if (split > 0) {
+                if (!usermem)
+                        memcpy(buf, rbuf->data+rbuf->pread, split);
+                else
+                        if (copy_to_user(buf, rbuf->data+rbuf->pread, split))
+                                return -EFAULT;
+                buf += split;
+                todo -= split;
+                rbuf->pread = 0;
+        }
+        if (!usermem)
+                memcpy(buf, rbuf->data+rbuf->pread, todo);
+        else
+                if (copy_to_user(buf, rbuf->data+rbuf->pread, todo))
+                        return -EFAULT;
+
+        rbuf->pread = (rbuf->pread + len) % rbuf->size;
+
+        return len;
+}
+
+
+
+ssize_t dvb_ringbuffer_write(dvb_ringbuffer_t *rbuf, const u8 *buf,
+                             size_t len, int usermem)
+{
+        size_t todo = len;
+        size_t split;
+    
+        split = (rbuf->pwrite + len > rbuf->size) ? rbuf->size - rbuf->pwrite : 0;
+
+        if (split > 0) {
+                if (!usermem) 
+                        memcpy(rbuf->data+rbuf->pwrite, buf, split);
+                else
+                        if (copy_from_user(rbuf->data+rbuf->pwrite, 
+                                           buf, split))
+                                return -EFAULT;
+                buf += split;
+                todo -= split;
+                rbuf->pwrite = 0;
+        }
+        if (!usermem) 
+                memcpy(rbuf->data+rbuf->pwrite, buf, todo);
+        else
+                if (copy_from_user(rbuf->data+rbuf->pwrite, buf, todo)) 
+                        return -EFAULT;
+
+        rbuf->pwrite = (rbuf->pwrite + len) % rbuf->size;
+
+	return len;
+}
+
+
+EXPORT_SYMBOL_GPL(dvb_ringbuffer_init);
+EXPORT_SYMBOL_GPL(dvb_ringbuffer_empty);
+EXPORT_SYMBOL_GPL(dvb_ringbuffer_free);
+EXPORT_SYMBOL_GPL(dvb_ringbuffer_avail);
+EXPORT_SYMBOL_GPL(dvb_ringbuffer_flush);
+EXPORT_SYMBOL_GPL(dvb_ringbuffer_flush_spinlock_wakeup);
+EXPORT_SYMBOL_GPL(dvb_ringbuffer_read);
+EXPORT_SYMBOL_GPL(dvb_ringbuffer_write);

drivers/media/dvb/dvb-core/dvb_ringbuffer.h

+/*
+ *
+ * dvb_ringbuffer.h: ring buffer implementation for the dvb driver
+ *
+ * Copyright (C) 2003 Oliver Endriss 
+ * 
+ * based on code originally found in av7110.c:
+ * Copyright (C) 1999-2002 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 General Public License
+ * as published by the Free Software Foundation; either version 2
+ * 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 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.
+ * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
+ * 
+ *
+ * the project's page is at http://www.linuxtv.org/dvb/
+ */
+
+#ifndef _DVB_RINGBUFFER_H_
+#define _DVB_RINGBUFFER_H_
+
+
+typedef struct dvb_ringbuffer {
+        u8               *data;
+        ssize_t           size;
+        ssize_t           pread;
+        ssize_t           pwrite;
+
+        wait_queue_head_t queue;
+        spinlock_t        lock;
+} dvb_ringbuffer_t;
+
+
+/*
+** Notes:
+** ------
+** (1) For performance reasons read and write routines don't check buffer sizes
+**     and/or number of bytes free/available. This has to be done before these
+**     routines are called. For example:
+**
+**     *** write <buflen> bytes ***
+**     free = dvb_ringbuffer_free(rbuf);
+**     if (free >= buflen) 
+**         count = dvb_ringbuffer_write(rbuf, buffer, buflen, 0);
+**     else
+**         ...
+**
+**     *** read min. 1000, max. <bufsize> bytes ***
+**     avail = dvb_ringbuffer_avail(rbuf);
+**     if (avail >= 1000)
+**         count = dvb_ringbuffer_read(rbuf, buffer, min(avail, bufsize), 0);
+**     else
+**         ...
+**
+** (2) If there is exactly one reader and one writer, there is no need 
+**     to lock read or write operations.
+**     Two or more readers must be locked against each other.
+**     Flushing the buffer counts as a read operation.
+**     Two or more writers must be locked against each other.
+*/
+
+/* initialize ring buffer, lock and queue */
+extern void dvb_ringbuffer_init(dvb_ringbuffer_t *rbuf, void *data, size_t len);
+
+/* test whether buffer is empty */
+extern int dvb_ringbuffer_empty(dvb_ringbuffer_t *rbuf);
+
+/* return the number of free bytes in the buffer */
+extern ssize_t dvb_ringbuffer_free(dvb_ringbuffer_t *rbuf);
+
+/* return the number of bytes waiting in the buffer */
+extern ssize_t dvb_ringbuffer_avail(dvb_ringbuffer_t *rbuf);
+
+
+/* read routines & macros */
+/* ---------------------- */
+/* flush buffer */
+extern void dvb_ringbuffer_flush(dvb_ringbuffer_t *rbuf);
+
+/* flush buffer protected by spinlock and wake-up waiting task(s) */
+extern void dvb_ringbuffer_flush_spinlock_wakeup(dvb_ringbuffer_t *rbuf);
+
+/* peek at byte <offs> in the buffer */
+#define DVB_RINGBUFFER_PEEK(rbuf,offs)	\
+			(rbuf)->data[((rbuf)->pread+(offs))%(rbuf)->size]
+
+/* advance read ptr by <num> bytes */
+#define DVB_RINGBUFFER_SKIP(rbuf,num)	\
+			(rbuf)->pread=((rbuf)->pread+(num))%(rbuf)->size
+ 
+/*
+** read <len> bytes from ring buffer into <buf> 
+** <usermem> specifies whether <buf> resides in user space
+** returns number of bytes transferred or -EFAULT
+*/
+extern ssize_t dvb_ringbuffer_read(dvb_ringbuffer_t *rbuf, u8 *buf, 
+                                   size_t len, int usermem);
+
+
+/* write routines & macros */
+/* ----------------------- */
+/* write single byte to ring buffer */
+#define DVB_RINGBUFFER_WRITE_BYTE(rbuf,byte)	\
+			{ (rbuf)->data[(rbuf)->pwrite]=(byte); \
+			(rbuf)->pwrite=((rbuf)->pwrite+1)%(rbuf)->size; }
+/*
+** write <len> bytes to ring buffer
+** <usermem> specifies whether <buf> resides in user space
+** returns number of bytes transferred or -EFAULT
+*/
+extern ssize_t dvb_ringbuffer_write(dvb_ringbuffer_t *rbuf, const u8 *buf,
+                                    size_t len, int usermem);
+
+#endif /* _DVB_RINGBUFFER_H_ */

drivers/media/dvb/dvb-core/dvbdev.c

@@ -35,11 +35,13 @@
 #include <asm/system.h>
 #include <linux/kmod.h>
 #include <linux/slab.h>
-#include <linux/videodev.h>
 
-#include "compat.h"
 #include "dvbdev.h"
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,51)
+	#include "compat.h"
+#endif
+
 static int dvbdev_debug = 0;
 #define dprintk if (dvbdev_debug) printk
 
@@ -57,7 +59,6 @@ static char *dnames[] = {
 #define DVB_MAX_IDS              4
 #define nums2minor(num,type,id)  ((num << 6) | (id << 4) | type)
 
-
 static
 struct dvb_device* dvbdev_find_device (int minor)
 {
@@ -160,7 +161,7 @@ int dvb_generic_ioctl(struct inode *inode, struct file *file,
 	if (!dvbdev->kernel_ioctl)
 		return -EINVAL;
 
-	return video_usercopy (inode, file, cmd, arg, dvbdev->kernel_ioctl);
+	return dvb_usercopy (inode, file, cmd, arg, dvbdev->kernel_ioctl);
 }
 
 
@@ -267,7 +268,7 @@ int dvbdev_get_free_adapter_num (void)
 }
 
 
-int dvb_register_adapter(struct dvb_adapter **padap, char *name)
+int dvb_register_adapter(struct dvb_adapter **padap, const char *name)
 {
 	struct dvb_adapter *adap;
 	int num;
@@ -288,12 +289,14 @@ int dvb_register_adapter(struct dvb_adapter **padap, char *name)
 	memset (adap, 0, sizeof(struct dvb_adapter));
 	INIT_LIST_HEAD (&adap->device_list);
 
-	MOD_INC_USE_COUNT;
+ 	/* fixme: is this correct? */
+	try_module_get(THIS_MODULE);
 
 	printk ("DVB: registering new adapter (%s).\n", name);
 	
 	adap->devfs_handle = devfs_mk_dir("dvb/adapter%d", num);
 	adap->num = num;
+	adap->name = name;
 
 	list_add_tail (&adap->list_head, &dvb_adapter_list);
 
@@ -311,7 +314,8 @@ int dvb_unregister_adapter(struct dvb_adapter *adap)
 	list_del (&adap->list_head);
 	up (&dvbdev_register_lock);
 	kfree (adap);
-	MOD_DEC_USE_COUNT;
+	/* fixme: is this correct? */
+	module_put(THIS_MODULE);
 	return 0;
 }
 

drivers/media/dvb/dvb-core/dvbdev.h

@@ -48,6 +48,7 @@ struct dvb_adapter {
 	devfs_handle_t devfs_handle;
 	struct list_head list_head;
 	struct list_head device_list;
+	const char *name;
 };
 
 
@@ -70,7 +71,7 @@ struct dvb_device {
 };
 
 
-extern int dvb_register_adapter (struct dvb_adapter **padap, char *name);
+extern int dvb_register_adapter (struct dvb_adapter **padap, const char *name);
 extern int dvb_unregister_adapter (struct dvb_adapter *adap);
 
 extern int dvb_register_device (struct dvb_adapter *adap,
@@ -85,6 +86,9 @@ extern int dvb_generic_open (struct inode *inode, struct file *file);
 extern int dvb_generic_release (struct inode *inode, struct file *file);
 extern int dvb_generic_ioctl (struct inode *inode, struct file *file,
 			      unsigned int cmd, unsigned long arg);
-
+int dvb_usercopy(struct inode *inode, struct file *file,
+                     unsigned int cmd, unsigned long arg,
+                     int (*func)(struct inode *inode, struct file *file,
+                     unsigned int cmd, void *arg));
 #endif /* #ifndef _DVBDEV_H_ */