firesat: update isochronous interface, add CI support

I have finally managed to get the CI support for the card working. The
implementation is a bare minimum to get encrypted channels to work in
kaffeine. It works fine with my T/CI card. Now and then I get an AVC
timeout and have to retune a channel in order to get it to work. Once
the CAM seemed to hang so I needed to remove and insert it again. I.e.
there are a number of glitches.

The latest version contains the following changes:

  - Implemented the new hpsb iso interface so that data can be received
    from the card
  - Reduced some timers for demux setup which caused scanning to timeout
  - Added possibility to unload driver
  - Added support for getting C/N ratio
  - Added two debug parameters to the driver; ca_debug and
    avc_comm_debug.
  - Added CI support that works for me in kaffeine
  - Started working on CI MMI support. It now supports:
      o Enter menu
      o Receiving MMI objects
  - Added support for 64-bit platforms
  - Corrected DVB-C modulations problems
Signed-off-by: Henrik Kurelid <henrik@kurelid.se>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (rebased, whitespace)

drivers/media/dvb/firesat/Makefile

 firesat-objs := firesat_1394.o	\
 		firesat_dvb.o	\
 		firesat_fe.o	\
+		firesat_iso.o	\
 		avc_api.o	\
 		cmp.o		\
 		firesat-rc.o	\

drivers/media/dvb/firesat/cmp.c

+/*
+ * FireSAT DVB driver
+ *
+ * Copyright (c) ?
+ * Copyright (c) 2008 Henrik Kurelid <henrik@kurelid.se>
+ *
+ *	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.
+ */
+
 #include "cmp.h"
 #include <ieee1394.h>
 #include <nodemgr.h>
@@ -10,18 +22,18 @@
 
 typedef struct _OPCR
 {
-	BYTE PTPConnCount    : 6 ; // Point to point connect. counter
-	BYTE BrConnCount     : 1 ; // Broadcast connection counter
-	BYTE OnLine          : 1 ; // On Line
+	__u8 PTPConnCount    : 6 ; // Point to point connect. counter
+	__u8 BrConnCount     : 1 ; // Broadcast connection counter
+	__u8 OnLine          : 1 ; // On Line
 
-	BYTE ChNr            : 6 ; // Channel number
-	BYTE Res             : 2 ; // Reserved
+	__u8 ChNr            : 6 ; // Channel number
+	__u8 Res             : 2 ; // Reserved
 
-	BYTE PayloadHi       : 2 ; // Payoad high bits
-	BYTE OvhdID          : 4 ; // Overhead ID
-	BYTE DataRate        : 2 ; // Data Rate
+	__u8 PayloadHi       : 2 ; // Payoad high bits
+	__u8 OvhdID          : 4 ; // Overhead ID
+	__u8 DataRate        : 2 ; // Data Rate
 
-	BYTE PayloadLo           ; // Payoad low byte
+	__u8 PayloadLo           ; // Payoad low byte
 } OPCR ;
 
 #define FIRESAT_SPEED IEEE1394_SPEED_400
@@ -94,13 +106,13 @@ int try_CMPEstablishPPconnection(struct firesat *firesat, int output_plug, int i
 	u64 oPCR_address=0xfffff0000904ull+(output_plug << 2);
 	int result=cmp_read(firesat, &test_oPCR, oPCR_address, 4);
 
-	printk(KERN_INFO "%s: nodeid = %d\n",__func__,firesat->nodeentry->nodeid);
+/* 	printk(KERN_INFO "%s: nodeid = %d\n",__func__,firesat->nodeentry->nodeid); */
 
 	if (result < 0) {
 		printk("%s: cannot read oPCR\n", __func__);
 		return result;
 	} else {
-		printk(KERN_INFO "%s: oPCR = %08x\n",__func__,test_oPCR);
+/* 		printk(KERN_INFO "%s: oPCR = %08x\n",__func__,test_oPCR); */
 		do {
 			OPCR *hilf= (OPCR*) &test_oPCR;
 
@@ -134,8 +146,8 @@ int try_CMPEstablishPPconnection(struct firesat *firesat, int output_plug, int i
 
 				hilf->PTPConnCount++;
 				new_oPCR=test_oPCR;
-				printk(KERN_INFO "%s: trying compare_swap...\n",__func__);
-				printk(KERN_INFO "%s: oPCR_old: %08x, oPCR_new: %08x\n",__func__, old_oPCR, new_oPCR);
+/* 				printk(KERN_INFO "%s: trying compare_swap...\n",__func__); */
+/* 				printk(KERN_INFO "%s: oPCR_old: %08x, oPCR_new: %08x\n",__func__, old_oPCR, new_oPCR); */
 				result=cmp_lock(firesat, &test_oPCR, oPCR_address, old_oPCR, 2);
 
 				if (result < 0) {
@@ -169,7 +181,7 @@ int try_CMPBreakPPconnection(struct firesat *firesat, int output_plug,int iso_ch
 	u64 oPCR_address=0xfffff0000904ull+(output_plug << 2);
 	int result=cmp_read(firesat, &test_oPCR, oPCR_address, 4);
 
-	printk(KERN_INFO "%s\n",__func__);
+/* 	printk(KERN_INFO "%s\n",__func__); */
 
 	if (result < 0) {
 		printk("%s: cannot read oPCR\n", __func__);

drivers/media/dvb/firesat/firesat.h

+/*
+ * FireSAT DVB driver
+ *
+ * Copyright (c) ?
+ * Copyright (c) 2008 Henrik Kurelid <henrik@kurelid.se>
+ *
+ *	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.
+ */
+
 #ifndef __FIRESAT_H
 #define __FIRESAT_H
 
@@ -6,9 +18,102 @@
 #include "dvb_demux.h"
 #include "dvb_net.h"
 
+#include <linux/version.h>
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 25)
 #include <linux/semaphore.h>
+#endif
 #include <linux/dvb/frontend.h>
 #include <linux/dvb/dmx.h>
+#include <iso.h>
+
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 25)
+#define DVB_REGISTER_ADAPTER(x, y, z, w, v) dvb_register_adapter(x, y, z, w, v)
+#else
+#define DVB_REGISTER_ADAPTER(x, y, z, w, v) dvb_register_adapter(x, y, z, w)
+#define DVB_DEFINE_MOD_OPT_ADAPTER_NR(x)
+#endif
+
+/*****************************************************************
+ * CA message command constants from en50221_app_tags.h of libdvb
+ *****************************************************************/
+/*	Resource Manager		*/
+#define TAG_PROFILE_ENQUIRY		0x9f8010
+#define TAG_PROFILE			0x9f8011
+#define TAG_PROFILE_CHANGE		0x9f8012
+
+/*	Application Info		*/
+#define TAG_APP_INFO_ENQUIRY		0x9f8020
+#define TAG_APP_INFO			0x9f8021
+#define TAG_ENTER_MENU			0x9f8022
+
+/*	CA Support			*/
+#define TAG_CA_INFO_ENQUIRY		0x9f8030
+#define TAG_CA_INFO			0x9f8031
+#define TAG_CA_PMT			0x9f8032
+#define TAG_CA_PMT_REPLY		0x9f8033
+
+/*	Host Control			*/
+#define TAG_TUNE			0x9f8400
+#define TAG_REPLACE			0x9f8401
+#define TAG_CLEAR_REPLACE		0x9f8402
+#define TAG_ASK_RELEASE			0x9f8403
+
+/*	Date and Time			*/
+#define TAG_DATE_TIME_ENQUIRY		0x9f8440
+#define TAG_DATE_TIME			0x9f8441
+
+/*	Man Machine Interface (MMI)	*/
+#define TAG_CLOSE_MMI			0x9f8800
+#define TAG_DISPLAY_CONTROL		0x9f8801
+#define TAG_DISPLAY_REPLY		0x9f8802
+#define TAG_TEXT_LAST			0x9f8803
+#define TAG_TEXT_MORE			0x9f8804
+#define TAG_KEYPAD_CONTROL		0x9f8805
+#define TAG_KEYPRESS			0x9f8806
+#define TAG_ENQUIRY			0x9f8807
+#define TAG_ANSWER			0x9f8808
+#define TAG_MENU_LAST			0x9f8809
+#define TAG_MENU_MORE			0x9f880a
+#define TAG_MENU_ANSWER			0x9f880b
+#define TAG_LIST_LAST			0x9f880c
+#define TAG_LIST_MORE			0x9f880d
+#define TAG_SUBTITLE_SEGMENT_LAST	0x9f880e
+#define TAG_SUBTITLE_SEGMENT_MORE	0x9f880f
+#define TAG_DISPLAY_MESSAGE		0x9f8810
+#define TAG_SCENE_END_MARK		0x9f8811
+#define TAG_SCENE_DONE			0x9f8812
+#define TAG_SCENE_CONTROL		0x9f8813
+#define TAG_SUBTITLE_DOWNLOAD_LAST	0x9f8814
+#define TAG_SUBTITLE_DOWNLOAD_MORE	0x9f8815
+#define TAG_FLUSH_DOWNLOAD		0x9f8816
+#define TAG_DOWNLOAD_REPLY		0x9f8817
+
+/*	Low Speed Communications	*/
+#define TAG_COMMS_COMMAND		0x9f8c00
+#define TAG_CONNECTION_DESCRIPTOR	0x9f8c01
+#define TAG_COMMS_REPLY			0x9f8c02
+#define TAG_COMMS_SEND_LAST		0x9f8c03
+#define TAG_COMMS_SEND_MORE		0x9f8c04
+#define TAG_COMMS_RECV_LAST		0x9f8c05
+#define TAG_COMMS_RECV_MORE		0x9f8c06
+
+/* Authentication */
+#define TAG_AUTH_REQ			0x9f8200
+#define TAG_AUTH_RESP			0x9f8201
+
+/* Teletext */
+#define TAG_TELETEXT_EBU		0x9f9000
+
+/* Smartcard */
+#define TAG_SMARTCARD_COMMAND		0x9f8e00
+#define TAG_SMARTCARD_REPLY		0x9f8e01
+#define TAG_SMARTCARD_SEND		0x9f8e02
+#define TAG_SMARTCARD_RCV		0x9f8e03
+
+/* EPG */
+#define TAG_EPG_ENQUIRY         	0x9f8f00
+#define TAG_EPG_REPLY           	0x9f8f01
+
 
 enum model_type {
 	FireSAT_DVB_S = 1,
@@ -31,7 +136,8 @@ struct firesat {
 	struct dvb_frontend		*fe;
 
 	struct dvb_device		*cadev;
-	int				has_ci;
+	int				ca_last_command;
+	int				ca_time_interval;
 
 	struct semaphore		avc_sem;
 	atomic_t			avc_reply_received;
@@ -53,7 +159,6 @@ struct firesat {
 	void *respfrm;
 	int resp_length;
 
-//    nodeid_t nodeid;
 	struct hpsb_host *host;
 	u64 guid;			/* GUID of this node */
 	u32 guid_vendor_id;		/* Top 24bits of guid */
@@ -65,10 +170,45 @@ struct firesat {
 	fe_sec_tone_mode_t tone;
 
 	int isochannel;
+	struct hpsb_iso *iso_handle;
 
 	struct list_head list;
 };
 
+struct firewireheader {
+	union {
+		struct {
+			__u8 tcode:4;
+			__u8 sy:4;
+			__u8 tag:2;
+			__u8 channel:6;
+
+			__u8 length_l;
+			__u8 length_h;
+		} hdr;
+		__u32 val;
+	};
+};
+
+struct CIPHeader {
+	union {
+		struct {
+			__u8 syncbits:2;
+			__u8 sid:6;
+			__u8 dbs;
+			__u8 fn:2;
+			__u8 qpc:3;
+			__u8 sph:1;
+			__u8 rsv:2;
+			__u8 dbc;
+			__u8 syncbits2:2;
+			__u8 fmt:6;
+			__u32 fdf:24;
+		} cip;
+		__u64 val;
+	};
+};
+
 extern struct list_head firesat_list;
 extern spinlock_t firesat_list_lock;
 
@@ -80,7 +220,11 @@ extern int firesat_dvbdev_init(struct firesat *firesat,
 			       struct dvb_frontend *fe);
 
 /* firesat_fe.c */
-extern int firesat_frontend_attach(struct firesat *firesat, struct dvb_frontend *fe);
+extern int firesat_frontend_attach(struct firesat *firesat,
+				   struct dvb_frontend *fe);
 
+/* firesat_iso.c */
+extern int setup_iso_channel(struct firesat *firesat);
+extern void tear_down_iso_channel(struct firesat *firesat);
 
 #endif

drivers/media/dvb/firesat/firesat_1394.c

@@ -3,6 +3,7 @@
  *
  * Copyright (c) 2004 Andreas Monitzer <andy@monitzer.com>
  * Copyright (c) 2007-2008 Ben Backx <ben@bbackx.com>
+ * Copyright (c) 2008 Henrik Kurelid <henrik@kurelid.se>
  *
  *	This program is free software; you can redistribute it and/or
  *	modify it under the terms of the GNU General Public License as
@@ -18,7 +19,6 @@
 #include <linux/time.h>
 #include <linux/errno.h>
 #include <linux/interrupt.h>
-#include <linux/semaphore.h>
 #include <ieee1394_hotplug.h>
 #include <nodemgr.h>
 #include <highlevel.h>
@@ -79,11 +79,6 @@ static void firesat_add_host(struct hpsb_host *host);
 static void firesat_remove_host(struct hpsb_host *host);
 static void firesat_host_reset(struct hpsb_host *host);
 
-/*
-static void iso_receive(struct hpsb_host *host, int channel, quadlet_t *data,
-			size_t length);
-*/
-
 static void fcp_request(struct hpsb_host *host,
 			int nodeid,
 			int direction,
@@ -96,7 +91,6 @@ static struct hpsb_highlevel firesat_highlevel = {
 	.add_host	= firesat_add_host,
 	.remove_host	= firesat_remove_host,
 	.host_reset	= firesat_host_reset,
-// FIXME	.iso_receive =	iso_receive,
 	.fcp_request	= fcp_request,
 };
 
@@ -127,100 +121,6 @@ static void firesat_host_reset(struct hpsb_host *host)
     printk(KERN_INFO "FireSAT host_reset (nodeid = 0x%x, hosts active = %d)\n",host->node_id,host->nodes_active);
 }
 
-struct firewireheader {
-    union {
-	struct {
-	    unsigned char tcode:4;
-	    unsigned char sy:4;
-	    unsigned char tag:2;
-	    unsigned char channel:6;
-
-	    unsigned char length_l;
-	    unsigned char length_h;
-	} hdr;
-	unsigned long val;
-    };
-};
-
-struct CIPHeader {
-    union {
-	struct {
-	    unsigned char syncbits:2;
-	    unsigned char sid:6;
-	    unsigned char dbs;
-	    unsigned char fn:2;
-	    unsigned char qpc:3;
-	    unsigned char sph:1;
-	    unsigned char rsv:2;
-	    unsigned char dbc;
-	    unsigned char syncbits2:2;
-	    unsigned char fmt:6;
-	    unsigned long fdf:24;
-	} cip;
-	unsigned long long val;
-    };
-};
-
-struct MPEG2Header {
-    union {
-	struct {
-	    unsigned char sync; // must be 0x47
-	    unsigned char transport_error_indicator:1;
-	    unsigned char payload_unit_start_indicator:1;
-	    unsigned char transport_priority:1;
-	    unsigned short pid:13;
-	    unsigned char transport_scrambling_control:2;
-	    unsigned char adaption_field_control:2;
-	    unsigned char continuity_counter:4;
-	} hdr;
-	unsigned long val;
-    };
-};
-
-#if 0
-static void iso_receive(struct hpsb_host *host,
-			int channel,
-			quadlet_t *data,
-			size_t length)
-{
-	struct firesat *firesat = NULL;
-	struct firesat *firesat_entry;
-	unsigned long flags;
-
-//    printk(KERN_INFO "FireSAT iso_receive: channel %d, length = %d\n", channel, length);
-
-	if (length <= 12)
-		return; // ignore empty packets
-	else {
-
-		spin_lock_irqsave(&firesat_list_lock, flags);
-		list_for_each_entry(firesat_entry,&firesat_list,list) {
-			if(firesat_entry->host == host && firesat_entry->isochannel == channel) {
-				firesat=firesat_entry;
-				break;
-			}
-		}
-		spin_unlock_irqrestore(&firesat_list_lock, flags);
-
-		if (firesat) {
-			char *buf= ((char*)data) + sizeof(struct firewireheader)+sizeof(struct CIPHeader);
-			int count = (length-sizeof(struct CIPHeader)) / 192;
-
-//			printk(KERN_INFO "%s: length = %u\n data[0] = %08x\n data[1] = %08x\n data[2] = %08x\n data[3] = %08x\n data[4] = %08x\n",__func__, length, data[0],data[1],data[2],data[3],data[4]);
-
-			while (count--) {
-
-				if (buf[sizeof(quadlet_t) /*timestamp*/] == 0x47)
-					dvb_dmx_swfilter_packets(&firesat->demux, &buf[sizeof(quadlet_t)], 1);
-				else
-					printk("%s: invalid packet, skipping\n", __func__);
-				buf += 188 + sizeof (quadlet_t) /* timestamp */;
-			}
-		}
-	}
-}
-#endif
-
 static void fcp_request(struct hpsb_host *host,
 			int nodeid,
 			int direction,
@@ -251,7 +151,9 @@ static void fcp_request(struct hpsb_host *host,
 			AVCRecv(firesat,data,length);
 		else
 			printk("%s: received fcp request from unknown source, ignored\n", __func__);
-	} // else ignore
+	}
+	else
+	  printk("%s: received invalid fcp request, ignored\n", __func__);
 }
 
 static int firesat_probe(struct device *dev)
@@ -260,7 +162,6 @@ static int firesat_probe(struct device *dev)
 	struct firesat *firesat;
 	struct dvb_frontend *fe;
 	unsigned long flags;
-	int result;
 	unsigned char subunitcount = 0xff, subunit;
 	struct firesat **firesats = kmalloc(sizeof (void*) * 2,GFP_KERNEL);
 	int kv_len;
@@ -298,6 +199,7 @@ static int firesat_probe(struct device *dev)
 		firesat->isochannel	= -1;
 		firesat->tone		= 0xff;
 		firesat->voltage	= 0xff;
+		firesat->fe             = fe;
 
 		if (!(firesat->respfrm = kmalloc(sizeof (AVCRspFrm), GFP_KERNEL))) {
 			printk("%s: couldn't allocate memory.\n", __func__);
@@ -357,7 +259,7 @@ static int firesat_probe(struct device *dev)
 		}
 		kfree(kv_buf);
 
-		if (AVCIdentifySubunit(firesat, NULL, (int*)&firesat->type, &firesat->has_ci)) {
+		if (AVCIdentifySubunit(firesat, NULL, (int*)&firesat->type)) {
 			printk("%s: cannot identify subunit %d\n", __func__, subunit);
 			spin_lock_irqsave(&firesat_list_lock, flags);
 			list_del(&firesat->list);
@@ -382,7 +284,6 @@ static int firesat_probe(struct device *dev)
 static int firesat_remove(struct device *dev)
 {
 	struct unit_directory *ud = container_of(dev, struct unit_directory, device);
-	struct dvb_frontend* fe;
 	struct firesat **firesats = ud->device.driver_data;
 	int k;
 	unsigned long flags;
@@ -390,18 +291,9 @@ static int firesat_remove(struct device *dev)
 	if (firesats) {
 		for (k = 0; k < 2; k++)
 			if (firesats[k]) {
-				if (firesats[k]->has_ci)
 					firesat_ca_release(firesats[k]);
 
-#if 0
-				if (!(fe = kmalloc(sizeof (struct dvb_frontend), GFP_KERNEL))) {
-					fe->ops = firesat_ops;
-					fe->dvb = firesats[k]->adapter;
-
-					dvb_unregister_frontend(fe);
-					kfree(fe);
-				}
-#endif
+				dvb_unregister_frontend(firesats[k]->fe);
 				dvb_net_release(&firesats[k]->dvbnet);
 				firesats[k]->demux.dmx.close(&firesats[k]->demux.dmx);
 				firesats[k]->demux.dmx.remove_frontend(&firesats[k]->demux.dmx, &firesats[k]->frontend);
@@ -413,6 +305,7 @@ static int firesat_remove(struct device *dev)
 				list_del(&firesats[k]->list);
 				spin_unlock_irqrestore(&firesat_list_lock, flags);
 
+				kfree(firesats[k]->fe);
 				kfree(firesats[k]->adapter);
 				kfree(firesats[k]->respfrm);
 				kfree(firesats[k]);

drivers/media/dvb/firesat/firesat_dvb.c

+/*
+ * FireSAT DVB driver
+ *
+ * Copyright (c) ?
+ * Copyright (c) 2008 Henrik Kurelid <henrik@kurelid.se>
+ *
+ *	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.
+ */
+
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/wait.h>
@@ -6,7 +18,6 @@
 #include <linux/time.h>
 #include <linux/errno.h>
 #include <linux/interrupt.h>
-#include <linux/semaphore.h>
 #include <ieee1394_hotplug.h>
 #include <nodemgr.h>
 #include <highlevel.h>
@@ -26,13 +37,13 @@ static struct firesat_channel *firesat_channel_allocate(struct firesat *firesat)
 {
 	int k;
 
-	printk(KERN_INFO "%s\n", __func__);
+	//printk(KERN_INFO "%s\n", __func__);
 
 	if (down_interruptible(&firesat->demux_sem))
 		return NULL;
 
 	for (k = 0; k < 16; k++) {
-		printk(KERN_INFO "%s: channel %d: active = %d, pid = 0x%x\n",__func__,k,firesat->channel[k].active,firesat->channel[k].pid);
+		//printk(KERN_INFO "%s: channel %d: active = %d, pid = 0x%x\n",__func__,k,firesat->channel[k].active,firesat->channel[k].pid);
 
 		if (firesat->channel[k].active == 0) {
 			firesat->channel[k].active = 1;
@@ -82,14 +93,15 @@ int firesat_start_feed(struct dvb_demux_feed *dvbdmxfeed)
 	int pidc,k;
 	u16 pids[16];
 
-	printk(KERN_INFO "%s (pid %u)\n",__func__,dvbdmxfeed->pid);
+//	printk(KERN_INFO "%s (pid %u)\n", __func__, dvbdmxfeed->pid);
 
 	switch (dvbdmxfeed->type) {
 	case DMX_TYPE_TS:
 	case DMX_TYPE_SEC:
 		break;
 	default:
-		printk("%s: invalid type %u\n",__func__,dvbdmxfeed->type);
+		printk(KERN_ERR "%s: invalid type %u\n",
+		       __func__, dvbdmxfeed->type);
 		return -EINVAL;
 	}
 
@@ -110,7 +122,8 @@ int firesat_start_feed(struct dvb_demux_feed *dvbdmxfeed)
 			channel = firesat_channel_allocate(firesat);
 			break;
 		default:
-			printk("%s: invalid pes type %u\n",__func__, dvbdmxfeed->pes_type);
+			printk(KERN_ERR "%s: invalid pes type %u\n",
+			       __func__, dvbdmxfeed->pes_type);
 			return -EINVAL;
 		}
 	} else {
@@ -118,7 +131,7 @@ int firesat_start_feed(struct dvb_demux_feed *dvbdmxfeed)
 	}
 
 	if (!channel) {
-		printk("%s: busy!\n", __func__);
+		printk(KERN_ERR "%s: busy!\n", __func__);
 		return -EBUSY;
 	}
 
@@ -131,22 +144,23 @@ int firesat_start_feed(struct dvb_demux_feed *dvbdmxfeed)
 
 	if (firesat_channel_collect(firesat, &pidc, pids)) {
 		firesat_channel_release(firesat, channel);
+		printk(KERN_ERR "%s: could not collect pids!\n", __func__);
 		return -EINTR;
 	}
 
 	if(dvbdmxfeed->pid == 8192) {
-		if((k=AVCTuner_GetTS(firesat))) {
+		if((k = AVCTuner_GetTS(firesat))) {
 			firesat_channel_release(firesat, channel);
 			printk("%s: AVCTuner_GetTS failed with error %d\n",
-				__func__,k);
+			       __func__, k);
 			return k;
 		}
 	}
 	else {
-		if((k=AVCTuner_SetPIDs(firesat, pidc, pids))) {
+		if((k = AVCTuner_SetPIDs(firesat, pidc, pids))) {
 			firesat_channel_release(firesat, channel);
 			printk("%s: AVCTuner_SetPIDs failed with error %d\n",
-				__func__,k);
+			       __func__, k);
 			return k;
 		}
 	}
@@ -161,7 +175,7 @@ int firesat_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
 	int k, l = 0;
 	u16 pids[16];
 
-	printk(KERN_INFO "%s (pid %u)\n", __func__, dvbdmxfeed->pid);
+	//printk(KERN_INFO "%s (pid %u)\n", __func__, dvbdmxfeed->pid);
 
 	if (dvbdmxfeed->type == DMX_TYPE_TS && !((dvbdmxfeed->ts_type & TS_PACKET) &&
 				(demux->dmx.frontend->source != DMX_MEMORY_FE))) {
@@ -189,12 +203,13 @@ int firesat_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
 
 	// list except channel to be removed
 	for (k = 0; k < 16; k++)
-		if (firesat->channel[k].active == 1)
+		if (firesat->channel[k].active == 1) {
 			if (&firesat->channel[k] !=
 				(struct firesat_channel *)dvbdmxfeed->priv)
 				pids[l++] = firesat->channel[k].pid;
 			else
 				firesat->channel[k].active = 0;
+		}
 
 	if ((k = AVCTuner_SetPIDs(firesat, l, pids))) {
 		up(&firesat->demux_sem);
@@ -214,8 +229,6 @@ int firesat_dvbdev_init(struct firesat *firesat,
 {
 	int result;
 
-		firesat->has_ci = 1; // TEMP workaround
-
 #if 0
 		switch (firesat->type) {
 		case FireSAT_DVB_S:
@@ -254,7 +267,7 @@ int firesat_dvbdev_init(struct firesat *firesat,
 			return -ENOMEM;
 		}
 
-		if ((result = dvb_register_adapter(firesat->adapter,
+		if ((result = DVB_REGISTER_ADAPTER(firesat->adapter,
 						   firesat->model_name,
 						   THIS_MODULE,
 						   dev, adapter_nr)) < 0) {
@@ -271,6 +284,7 @@ int firesat_dvbdev_init(struct firesat *firesat,
 			return result;
 		}
 
+		memset(&firesat->demux, 0, sizeof(struct dvb_demux));
 		firesat->demux.dmx.capabilities = 0/*DMX_TS_FILTERING | DMX_SECTION_FILTERING*/;
 
 		firesat->demux.priv		= (void *)firesat;
@@ -343,8 +357,9 @@ int firesat_dvbdev_init(struct firesat *firesat,
 			return result;
 		}
 
-		if (firesat->has_ci)
 			firesat_ca_init(firesat);
 
 		return 0;
 }
+
+

drivers/media/dvb/firesat/firesat_fe.c

+/*
+ * FireSAT DVB driver
+ *
+ * Copyright (c) ?
+ * Copyright (c) 2008 Henrik Kurelid <henrik@kurelid.se>
+ *
+ *	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.
+ */
+
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/wait.h>
@@ -6,7 +18,6 @@
 #include <linux/time.h>
 #include <linux/errno.h>
 #include <linux/interrupt.h>
-#include <linux/semaphore.h>
 #include <ieee1394_hotplug.h>
 #include <nodemgr.h>
 #include <highlevel.h>
@@ -22,22 +33,29 @@
 
 static int firesat_dvb_init(struct dvb_frontend *fe)
 {
+	int result;
 	struct firesat *firesat = fe->sec_priv;
-	printk("fdi: 1\n");
+//	printk("fdi: 1\n");
 	firesat->isochannel = firesat->adapter->num; //<< 1 | (firesat->subunit & 0x1); // ### ask IRM
-	printk("fdi: 2\n");
-	try_CMPEstablishPPconnection(firesat, firesat->subunit, firesat->isochannel);
-	printk("fdi: 3\n");
-//FIXME	hpsb_listen_channel(&firesat_highlevel, firesat->host, firesat->isochannel);
-	printk("fdi: 4\n");
-	return 0;
+//	printk("fdi: 2\n");
+	result = try_CMPEstablishPPconnection(firesat, firesat->subunit, firesat->isochannel);
+	if (result != 0) {
+		printk(KERN_ERR "Could not establish point to point "
+		       "connection.\n");
+		return -1;
+	}
+//	printk("fdi: 3\n");
+
+	result = setup_iso_channel(firesat);
+//	printk("fdi: 4. Result was %d\n", result);
+	return result;
 }
 
 static int firesat_sleep(struct dvb_frontend *fe)
 {
 	struct firesat *firesat = fe->sec_priv;
 
-//FIXME	hpsb_unlisten_channel(&firesat_highlevel, firesat->host, firesat->isochannel);
+	tear_down_iso_channel(firesat);
 	try_CMPBreakPPconnection(firesat, firesat->subunit, firesat->isochannel);
 	firesat->isochannel = -1;
 	return 0;
@@ -83,19 +101,20 @@ static int firesat_read_status (struct dvb_frontend *fe, fe_status_t *status)
 	if (AVCTunerStatus(firesat, &info))
 		return -EINVAL;
 
-	if (info.NoRF)
+	if (info.NoRF) {
 		*status = 0;
-	else
-		*status = *status = FE_HAS_SIGNAL	|
+	} else {
+		*status = FE_HAS_SIGNAL	|
 			FE_HAS_VITERBI	|
 			FE_HAS_SYNC	|
 			FE_HAS_CARRIER	|
 			FE_HAS_LOCK;
+	}
 
 	return 0;
 }
 
-static int firesat_read_ber (struct dvb_frontend *fe, u32 *ber)
+static int firesat_read_ber(struct dvb_frontend *fe, u32 *ber)
 {
 	struct firesat *firesat = fe->sec_priv;
 	ANTENNA_INPUT_INFO info;
@@ -103,10 +122,10 @@ static int firesat_read_ber (struct dvb_frontend *fe, u32 *ber)
 	if (AVCTunerStatus(firesat, &info))
 		return -EINVAL;
 
-	*ber = ((info.BER[0] << 24) & 0xff)	|
-	       ((info.BER[1] << 16) & 0xff)	|
-	       ((info.BER[2] << 8) & 0xff)	|
-		(info.BER[3] & 0xff);
+	*ber = (info.BER[0] << 24) |
+		(info.BER[1] << 16) |
+		(info.BER[2] <<  8) |
+		info.BER[3];
 
 	return 0;
 }
@@ -115,19 +134,29 @@ static int firesat_read_signal_strength (struct dvb_frontend *fe, u16 *strength)
 {
 	struct firesat *firesat = fe->sec_priv;
 	ANTENNA_INPUT_INFO info;
-	u16 *signal = strength;
 
 	if (AVCTunerStatus(firesat, &info))
 		return -EINVAL;
 
-	*signal = info.SignalStrength;
+	*strength = info.SignalStrength << 8;
 
 	return 0;
 }
 
 static int firesat_read_snr(struct dvb_frontend *fe, u16 *snr)
 {
-	return -EOPNOTSUPP;
+	struct firesat *firesat = fe->sec_priv;
+	ANTENNA_INPUT_INFO info;
+
+	if (AVCTunerStatus(firesat, &info))
+		return -EINVAL;
+
+	*snr = (info.CarrierNoiseRatio[0] << 8) +
+		info.CarrierNoiseRatio[1];
+	*snr *= 257;
+	// C/N[dB] = -10 * log10(snr / 65535)
+
+	return 0;
 }
 
 static int firesat_read_uncorrected_blocks(struct dvb_frontend *fe, u32 *ucblocks)
@@ -192,14 +221,13 @@ int firesat_frontend_attach(struct firesat *firesat, struct dvb_frontend *fe)
 		firesat->frontend_info = &firesat_T_frontend_info;
 		break;
 	default:
-//		printk("%s: unknown model type 0x%x on subunit %d!\n",
-//			__func__, firesat->type,subunit);
 		printk("%s: unknown model type 0x%x !\n",
 			__func__, firesat->type);
 		firesat->model_name = "Unknown";
 		firesat->frontend_info = NULL;
 	}
 	fe->ops = firesat_ops;
+	fe->ops.info = *(firesat->frontend_info);
 	fe->dvb = firesat->adapter;
 
 	return 0;

drivers/media/dvb/firesat/firesat_iso.c

+/*
+ * FireSAT DVB driver
+ *
+ * Copyright (c) 2008 Henrik Kurelid <henrik@kurelid.se>
+ *
+ *	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.
+ */
+
+#include "firesat.h"
+
+static void rawiso_activity_cb(struct hpsb_iso *iso);
+
+void tear_down_iso_channel(struct firesat *firesat)
+{
+	if (firesat->iso_handle != NULL) {
+		hpsb_iso_stop(firesat->iso_handle);
+		hpsb_iso_shutdown(firesat->iso_handle);
+	}
+	firesat->iso_handle = NULL;
+}
+
+int setup_iso_channel(struct firesat *firesat)
+{
+	int result;
+	firesat->iso_handle =
+		hpsb_iso_recv_init(firesat->host,
+				   256 * 200, //data_buf_size,
+				   256, //buf_packets,
+				   firesat->isochannel,
+				   HPSB_ISO_DMA_DEFAULT, //dma_mode,
+				   -1, //stat.config.irq_interval,
+				   rawiso_activity_cb);
+	if (firesat->iso_handle == NULL) {
+		printk(KERN_ERR "Cannot initialize iso receive.\n");
+		return -EINVAL;
+	}
+	result = hpsb_iso_recv_start(firesat->iso_handle, -1, -1, 0);
+	if (result != 0) {
+		printk(KERN_ERR "Cannot start iso receive.\n");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static void rawiso_activity_cb(struct hpsb_iso *iso)
+{
+	unsigned int num;
+	unsigned int i;
+/* 	unsigned int j; */
+	unsigned int packet;
+	unsigned long flags;
+	struct firesat *firesat = NULL;
+	struct firesat *firesat_iterator;
+
+	spin_lock_irqsave(&firesat_list_lock, flags);
+	list_for_each_entry(firesat_iterator, &firesat_list, list) {
+		if(firesat_iterator->iso_handle == iso) {
+			firesat = firesat_iterator;
+			break;
+		}
+	}
+	spin_unlock_irqrestore(&firesat_list_lock, flags);
+
+	if (firesat) {
+		packet = iso->first_packet;
+		num = hpsb_iso_n_ready(iso);
+		for (i = 0; i < num; i++,
+			     packet = (packet + 1) % iso->buf_packets) {
+			unsigned char *buf =
+				dma_region_i(&iso->data_buf, unsigned char,
+					     iso->infos[packet].offset +
+					     sizeof(struct CIPHeader));
+			int count = (iso->infos[packet].len -
+				     sizeof(struct CIPHeader)) /
+				(188 + sizeof(struct firewireheader));
+			if (iso->infos[packet].len <= sizeof(struct CIPHeader))
+				continue; // ignore empty packet
+/* 			printk("%s: Handling packets (%d): ", __func__, */
+/* 			       iso->infos[packet].len); */
+/* 			for (j = 0; j < iso->infos[packet].len - */
+/* 				     sizeof(struct CIPHeader); j++) */
+/* 				printk("%02X,", buf[j]); */
+/* 			printk("\n"); */
+			while (count --) {
+				if (buf[sizeof(struct firewireheader)] == 0x47)
+					dvb_dmx_swfilter_packets(&firesat->demux,
+								 &buf[sizeof(struct firewireheader)], 1);
+				else
+					printk("%s: invalid packet, skipping\n", __func__);
+				buf += 188 + sizeof(struct firewireheader);
+
+			}
+
+		}
+		hpsb_iso_recv_release_packets(iso, num);
+	}
+	else {
+		printk("%s: packets for unknown iso channel, skipping\n",
+		       __func__);
+		hpsb_iso_recv_release_packets(iso, hpsb_iso_n_ready(iso));
+	}
+}
+