[media] dvb-core: move dvb_filter out of the DVB core

The dvb_filter.c can hardly be considered as part of the DVB
core. More than half of the code there is commented out by
av7110 and ttusb_dec.

On the latter, just two small helper functions and a struct
definition is used.

Being part of the core means that it would require an
amount of work to fix issues in it, like bad printk's
on it, and to document it on some future, like other kAPI
headers. It simply not worth the effort for something that
seems to be deprecated, as no new drivers use it.

So, move it out of the core, by moving it to pci/ttpci
directory, where av7110 driver is kept, and copy the two
routines used by ttyusb_dec directly into its code.

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

drivers/media/common/b2c2/flexcop-common.h

@@ -14,7 +14,6 @@
 
 #include "dmxdev.h"
 #include "dvb_demux.h"
-#include "dvb_filter.h"
 #include "dvb_net.h"
 #include "dvb_frontend.h"
 

drivers/media/dvb-core/Makefile

@@ -4,7 +4,7 @@
 
 dvb-net-$(CONFIG_DVB_NET) := dvb_net.o
 
-dvb-core-objs := dvbdev.o dmxdev.o dvb_demux.o dvb_filter.o 	\
+dvb-core-objs := dvbdev.o dmxdev.o dvb_demux.o		 	\
 		 dvb_ca_en50221.o dvb_frontend.o 		\
 		 $(dvb-net-y) dvb_ringbuffer.o dvb_math.o
 

drivers/media/pci/ttpci/Makefile

@@ -3,7 +3,7 @@
 # and the AV7110 DVB device driver
 #
 
-dvb-ttpci-objs := av7110_hw.o av7110_v4l.o av7110_av.o av7110_ca.o av7110.o av7110_ipack.o
+dvb-ttpci-objs := av7110_hw.o av7110_v4l.o av7110_av.o av7110_ca.o av7110.o av7110_ipack.o dvb_filter.o
 
 ifdef CONFIG_DVB_AV7110_IR
 dvb-ttpci-objs += av7110_ir.o

drivers/media/dvb-core/dvb_filter.c → drivers/media/pci/ttpci/dvb_filter.c

@@ -390,7 +390,6 @@ int dvb_filter_get_ac3info(u8 *mbuf, int count, struct dvb_audio_info *ai, int p
 
 	return 0;
 }
-EXPORT_SYMBOL(dvb_filter_get_ac3info);
 
 
 #if 0
@@ -565,7 +564,6 @@ void dvb_filter_pes2ts_init(struct dvb_filter_pes2ts *p2ts, unsigned short pid,
 	p2ts->cb=cb;
 	p2ts->priv=priv;
 }
-EXPORT_SYMBOL(dvb_filter_pes2ts_init);
 
 int dvb_filter_pes2ts(struct dvb_filter_pes2ts *p2ts, unsigned char *pes,
 		      int len, int payload_start)
@@ -600,4 +598,3 @@ int dvb_filter_pes2ts(struct dvb_filter_pes2ts *p2ts, unsigned char *pes,
 	memcpy(buf+5+rest, pes, len);
 	return p2ts->cb(p2ts->priv, buf);
 }
-EXPORT_SYMBOL(dvb_filter_pes2ts);

drivers/media/usb/ttusb-dec/ttusb_dec.c

@@ -36,7 +36,6 @@
 
 #include "dmxdev.h"
 #include "dvb_demux.h"
-#include "dvb_filter.h"
 #include "dvb_frontend.h"
 #include "dvb_net.h"
 #include "ttusbdecfe.h"
@@ -92,6 +91,15 @@ enum ttusb_dec_interface {
 	TTUSB_DEC_INTERFACE_OUT
 };
 
+typedef int (dvb_filter_pes2ts_cb_t) (void *, unsigned char *);
+
+struct dvb_filter_pes2ts {
+	unsigned char buf[188];
+	unsigned char cc;
+	dvb_filter_pes2ts_cb_t *cb;
+	void *priv;
+};
+
 struct ttusb_dec {
 	enum ttusb_dec_model		model;
 	char				*model_name;
@@ -201,6 +209,54 @@ static u16 rc_keys[] = {
 	KEY_RADIO
 };
 
+static void dvb_filter_pes2ts_init(struct dvb_filter_pes2ts *p2ts,
+				   unsigned short pid,
+				   dvb_filter_pes2ts_cb_t *cb, void *priv)
+{
+	unsigned char *buf=p2ts->buf;
+
+	buf[0]=0x47;
+	buf[1]=(pid>>8);
+	buf[2]=pid&0xff;
+	p2ts->cc=0;
+	p2ts->cb=cb;
+	p2ts->priv=priv;
+}
+
+static int dvb_filter_pes2ts(struct dvb_filter_pes2ts *p2ts,
+			     unsigned char *pes, int len, int payload_start)
+{
+	unsigned char *buf=p2ts->buf;
+	int ret=0, rest;
+
+	//len=6+((pes[4]<<8)|pes[5]);
+
+	if (payload_start)
+		buf[1]|=0x40;
+	else
+		buf[1]&=~0x40;
+	while (len>=184) {
+		buf[3]=0x10|((p2ts->cc++)&0x0f);
+		memcpy(buf+4, pes, 184);
+		if ((ret=p2ts->cb(p2ts->priv, buf)))
+			return ret;
+		len-=184; pes+=184;
+		buf[1]&=~0x40;
+	}
+	if (!len)
+		return 0;
+	buf[3]=0x30|((p2ts->cc++)&0x0f);
+	rest=183-len;
+	if (rest) {
+		buf[5]=0x00;
+		if (rest-1)
+			memset(buf+6, 0xff, rest-1);
+	}
+	buf[4]=rest;
+	memcpy(buf+5+rest, pes, len);
+	return p2ts->cb(p2ts->priv, buf);
+}
+
 static void ttusb_dec_set_model(struct ttusb_dec *dec,
 				enum ttusb_dec_model model);