Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

12 files changed, 6735 insertions, 0 deletions

diff --git a/drivers/isdn/capi/Kconfig b/drivers/isdn/capi/Kconfig
new file mode 100644
index 000000000000..8b6c9a431ffa
--- /dev/null
+++ b/drivers/isdn/capi/Kconfig
@@ -0,0 +1,53 @@
+#
+# Config.in for the CAPI subsystem
+#
+config ISDN_DRV_AVMB1_VERBOSE_REASON
+	bool "Verbose reason code reporting (kernel size +=7K)"
+	depends on ISDN_CAPI
+	help
+	  If you say Y here, the AVM B1 driver will give verbose reasons for
+	  disconnecting. This will increase the size of the kernel by 7 KB. If
+	  unsure, say Y.
+
+config ISDN_CAPI_MIDDLEWARE
+	bool "CAPI2.0 Middleware support (EXPERIMENTAL)"
+	depends on ISDN_CAPI && EXPERIMENTAL
+	help
+	  This option will enhance the capabilities of the /dev/capi20
+	  interface.  It will provide a means of moving a data connection,
+	  established via the usual /dev/capi20 interface to a special tty
+	  device.  If you want to use pppd with pppdcapiplugin to dial up to
+	  your ISP, say Y here.
+
+config ISDN_CAPI_CAPI20
+	tristate "CAPI2.0 /dev/capi support"
+	depends on ISDN_CAPI
+	help
+	  This option will provide the CAPI 2.0 interface to userspace
+	  applications via /dev/capi20. Applications should use the
+	  standardized libcapi20 to access this functionality.  You should say
+	  Y/M here.
+
+config ISDN_CAPI_CAPIFS_BOOL
+	bool "CAPI2.0 filesystem support"
+	depends on ISDN_CAPI_MIDDLEWARE && ISDN_CAPI_CAPI20
+
+config ISDN_CAPI_CAPIFS
+	tristate
+	depends on ISDN_CAPI_CAPIFS_BOOL
+	default ISDN_CAPI_CAPI20
+	help
+	  This option provides a special file system, similar to /dev/pts with
+	  device nodes for the special ttys established by using the
+	  middleware extension above. If you want to use pppd with
+	  pppdcapiplugin to dial up to your ISP, say Y here.
+
+config ISDN_CAPI_CAPIDRV
+	tristate "CAPI2.0 capidrv interface support"
+	depends on ISDN_CAPI && ISDN_I4L
+	help
+	  This option provides the glue code to hook up CAPI driven cards to
+	  the legacy isdn4linux link layer.  If you have a card which is
+	  supported by a CAPI driver, but still want to use old features like
+	  ippp interfaces or ttyI emulation, say Y/M here.
+
diff --git a/drivers/isdn/capi/Makefile b/drivers/isdn/capi/Makefile
new file mode 100644
index 000000000000..57123e3e4978
--- /dev/null
+++ b/drivers/isdn/capi/Makefile
@@ -0,0 +1,15 @@
+# Makefile for the CAPI subsystem.
+
+# Ordering constraints: kernelcapi.o first
+
+# Each configuration option enables a list of files.
+
+obj-$(CONFIG_ISDN_CAPI)			+= kernelcapi.o
+obj-$(CONFIG_ISDN_CAPI_CAPI20)		+= capi.o 
+obj-$(CONFIG_ISDN_CAPI_CAPIDRV)		+= capidrv.o
+obj-$(CONFIG_ISDN_CAPI_CAPIFS)		+= capifs.o
+
+# Multipart objects.
+
+kernelcapi-y				:= kcapi.o capiutil.o capilib.o
+kernelcapi-$(CONFIG_PROC_FS)		+= kcapi_proc.o
diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
new file mode 100644
index 000000000000..06163538bb20
--- /dev/null
+++ b/drivers/isdn/capi/capi.c
@@ -0,0 +1,1554 @@
+/* $Id: capi.c,v 1.1.2.7 2004/04/28 09:48:59 armin Exp $
+ *
+ * CAPI 2.0 Interface for Linux
+ *
+ * Copyright 1996 by Carsten Paeth <calle@calle.de>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/fcntl.h>
+#include <linux/fs.h>
+#include <linux/signal.h>
+#include <linux/mm.h>
+#include <linux/smp_lock.h>
+#include <linux/timer.h>
+#include <linux/wait.h>
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+#include <linux/tty.h>
+#ifdef CONFIG_PPP
+#include <linux/netdevice.h>
+#include <linux/ppp_defs.h>
+#include <linux/if_ppp.h>
+#endif /* CONFIG_PPP */
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+#include <linux/skbuff.h>
+#include <linux/proc_fs.h>
+#include <linux/poll.h>
+#include <linux/capi.h>
+#include <linux/kernelcapi.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/moduleparam.h>
+#include <linux/devfs_fs_kernel.h>
+#include <linux/isdn/capiutil.h>
+#include <linux/isdn/capicmd.h>
+#if defined(CONFIG_ISDN_CAPI_CAPIFS) || defined(CONFIG_ISDN_CAPI_CAPIFS_MODULE)
+#include "capifs.h"
+#endif
+
+static char *revision = "$Revision: 1.1.2.7 $";
+
+MODULE_DESCRIPTION("CAPI4Linux: Userspace /dev/capi20 interface");
+MODULE_AUTHOR("Carsten Paeth");
+MODULE_LICENSE("GPL");
+
+#undef _DEBUG_REFCOUNT		/* alloc/free and open/close debug */
+#undef _DEBUG_TTYFUNCS		/* call to tty_driver */
+#undef _DEBUG_DATAFLOW		/* data flow */
+
+/* -------- driver information -------------------------------------- */
+
+static struct class_simple *capi_class;
+
+int capi_major = 68;		/* allocated */
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+#define CAPINC_NR_PORTS	32
+#define CAPINC_MAX_PORTS	256
+int capi_ttymajor = 191;
+int capi_ttyminors = CAPINC_NR_PORTS;
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+
+module_param_named(major, capi_major, uint, 0);
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+module_param_named(ttymajor, capi_ttymajor, uint, 0);
+module_param_named(ttyminors, capi_ttyminors, uint, 0);
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+
+/* -------- defines ------------------------------------------------- */
+
+#define CAPINC_MAX_RECVQUEUE	10
+#define CAPINC_MAX_SENDQUEUE	10
+#define CAPI_MAX_BLKSIZE	2048
+
+/* -------- data structures ----------------------------------------- */
+
+struct capidev;
+struct capincci;
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+struct capiminor;
+
+struct capiminor {
+	struct list_head list;
+	struct capincci  *nccip;
+	unsigned int      minor;
+
+	struct capi20_appl *ap;
+	u32		 ncci;
+	u16		 datahandle;
+	u16		 msgid;
+
+	struct tty_struct *tty;
+	int                ttyinstop;
+	int                ttyoutstop;
+	struct sk_buff    *ttyskb;
+	atomic_t           ttyopencount;
+
+	struct sk_buff_head inqueue;
+	int                 inbytes;
+	struct sk_buff_head outqueue;
+	int                 outbytes;
+
+	/* transmit path */
+	struct datahandle_queue {
+		    struct datahandle_queue *next;
+		    u16                    datahandle;
+	} *ackqueue;
+	int nack;
+
+};
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+
+struct capincci {
+	struct capincci *next;
+	u32		 ncci;
+	struct capidev	*cdev;
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+	struct capiminor *minorp;
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+};
+
+struct capidev {
+	struct list_head list;
+	struct capi20_appl ap;
+	u16		errcode;
+	unsigned        userflags;
+
+	struct sk_buff_head recvqueue;
+	wait_queue_head_t recvwait;
+
+	struct capincci *nccis;
+
+	struct semaphore ncci_list_sem;
+};
+
+/* -------- global variables ---------------------------------------- */
+
+static DEFINE_RWLOCK(capidev_list_lock);
+static LIST_HEAD(capidev_list);
+
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+static DEFINE_RWLOCK(capiminor_list_lock);
+static LIST_HEAD(capiminor_list);
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+/* -------- datahandles --------------------------------------------- */
+
+static int capincci_add_ack(struct capiminor *mp, u16 datahandle)
+{
+	struct datahandle_queue *n, **pp;
+
+	n = kmalloc(sizeof(*n), GFP_ATOMIC);
+	if (!n) {
+	   printk(KERN_ERR "capi: alloc datahandle failed\n");
+	   return -1;
+	}
+	n->next = NULL;
+	n->datahandle = datahandle;
+	for (pp = &mp->ackqueue; *pp; pp = &(*pp)->next) ;
+	*pp = n;
+	mp->nack++;
+	return 0;
+}
+
+static int capiminor_del_ack(struct capiminor *mp, u16 datahandle)
+{
+	struct datahandle_queue **pp, *p;
+
+	for (pp = &mp->ackqueue; *pp; pp = &(*pp)->next) {
+ 		if ((*pp)->datahandle == datahandle) {
+			p = *pp;
+			*pp = (*pp)->next;
+			kfree(p);
+			mp->nack--;
+			return 0;
+		}
+	}
+	return -1;
+}
+
+static void capiminor_del_all_ack(struct capiminor *mp)
+{
+	struct datahandle_queue **pp, *p;
+
+	pp = &mp->ackqueue;
+	while (*pp) {
+		p = *pp;
+		*pp = (*pp)->next;
+		kfree(p);
+		mp->nack--;
+	}
+}
+
+
+/* -------- struct capiminor ---------------------------------------- */
+
+static struct capiminor *capiminor_alloc(struct capi20_appl *ap, u32 ncci)
+{
+	struct capiminor *mp, *p;
+	unsigned int minor = 0;
+	unsigned long flags;
+
+	mp = kmalloc(sizeof(*mp), GFP_ATOMIC);
+  	if (!mp) {
+  		printk(KERN_ERR "capi: can't alloc capiminor\n");
+		return NULL;
+	}
+
+	memset(mp, 0, sizeof(struct capiminor));
+	mp->ap = ap;
+	mp->ncci = ncci;
+	mp->msgid = 0;
+	atomic_set(&mp->ttyopencount,0);
+
+	skb_queue_head_init(&mp->inqueue);
+	skb_queue_head_init(&mp->outqueue);
+
+	/* Allocate the least unused minor number.
+	 */
+	write_lock_irqsave(&capiminor_list_lock, flags);
+	if (list_empty(&capiminor_list))
+		list_add(&mp->list, &capiminor_list);
+	else {
+		list_for_each_entry(p, &capiminor_list, list) {
+			if (p->minor > minor)
+				break;
+			minor++;
+		}
+		
+		if (minor < capi_ttyminors) {
+			mp->minor = minor;
+			list_add(&mp->list, p->list.prev);
+		}
+	}
+		write_unlock_irqrestore(&capiminor_list_lock, flags);
+
+	if (!(minor < capi_ttyminors)) {
+		printk(KERN_NOTICE "capi: out of minors\n");
+			kfree(mp);
+		return NULL;
+	}
+
+	return mp;
+}
+
+static void capiminor_free(struct capiminor *mp)
+{
+	unsigned long flags;
+
+	write_lock_irqsave(&capiminor_list_lock, flags);
+	list_del(&mp->list);
+	write_unlock_irqrestore(&capiminor_list_lock, flags);
+
+	if (mp->ttyskb) kfree_skb(mp->ttyskb);
+	mp->ttyskb = NULL;
+	skb_queue_purge(&mp->inqueue);
+	skb_queue_purge(&mp->outqueue);
+	capiminor_del_all_ack(mp);
+	kfree(mp);
+}
+
+struct capiminor *capiminor_find(unsigned int minor)
+{
+	struct list_head *l;
+	struct capiminor *p = NULL;
+
+	read_lock(&capiminor_list_lock);
+	list_for_each(l, &capiminor_list) {
+		p = list_entry(l, struct capiminor, list);
+		if (p->minor == minor)
+			break;
+	}
+	read_unlock(&capiminor_list_lock);
+	if (l == &capiminor_list)
+		return NULL;
+
+	return p;
+}
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+
+/* -------- struct capincci ----------------------------------------- */
+
+static struct capincci *capincci_alloc(struct capidev *cdev, u32 ncci)
+{
+	struct capincci *np, **pp;
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+	struct capiminor *mp = NULL;
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+
+	np = kmalloc(sizeof(*np), GFP_ATOMIC);
+	if (!np)
+		return NULL;
+	memset(np, 0, sizeof(struct capincci));
+	np->ncci = ncci;
+	np->cdev = cdev;
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+	mp = NULL;
+	if (cdev->userflags & CAPIFLAG_HIGHJACKING)
+		mp = np->minorp = capiminor_alloc(&cdev->ap, ncci);
+	if (mp) {
+		mp->nccip = np;
+#ifdef _DEBUG_REFCOUNT
+		printk(KERN_DEBUG "set mp->nccip\n");
+#endif
+#if defined(CONFIG_ISDN_CAPI_CAPIFS) || defined(CONFIG_ISDN_CAPI_CAPIFS_MODULE)
+		capifs_new_ncci(mp->minor, MKDEV(capi_ttymajor, mp->minor));
+#endif
+	}
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+	for (pp=&cdev->nccis; *pp; pp = &(*pp)->next)
+		;
+	*pp = np;
+        return np;
+}
+
+static void capincci_free(struct capidev *cdev, u32 ncci)
+{
+	struct capincci *np, **pp;
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+	struct capiminor *mp;
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+
+	pp=&cdev->nccis;
+	while (*pp) {
+		np = *pp;
+		if (ncci == 0xffffffff || np->ncci == ncci) {
+			*pp = (*pp)->next;
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+			if ((mp = np->minorp) != 0) {
+#if defined(CONFIG_ISDN_CAPI_CAPIFS) || defined(CONFIG_ISDN_CAPI_CAPIFS_MODULE)
+				capifs_free_ncci(mp->minor);
+#endif
+				if (mp->tty) {
+					mp->nccip = NULL;
+#ifdef _DEBUG_REFCOUNT
+					printk(KERN_DEBUG "reset mp->nccip\n");
+#endif
+					tty_hangup(mp->tty);
+				} else {
+					capiminor_free(mp);
+				}
+			}
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+			kfree(np);
+			if (*pp == 0) return;
+		} else {
+			pp = &(*pp)->next;
+		}
+	}
+}
+
+static struct capincci *capincci_find(struct capidev *cdev, u32 ncci)
+{
+	struct capincci *p;
+
+	for (p=cdev->nccis; p ; p = p->next) {
+		if (p->ncci == ncci)
+			break;
+	}
+	return p;
+}
+
+/* -------- struct capidev ------------------------------------------ */
+
+static struct capidev *capidev_alloc(void)
+{
+	struct capidev *cdev;
+	unsigned long flags;
+
+	cdev = kmalloc(sizeof(*cdev), GFP_KERNEL);
+	if (!cdev)
+		return NULL;
+	memset(cdev, 0, sizeof(struct capidev));
+
+	init_MUTEX(&cdev->ncci_list_sem);
+	skb_queue_head_init(&cdev->recvqueue);
+	init_waitqueue_head(&cdev->recvwait);
+	write_lock_irqsave(&capidev_list_lock, flags);
+	list_add_tail(&cdev->list, &capidev_list);
+	write_unlock_irqrestore(&capidev_list_lock, flags);
+        return cdev;
+}
+
+static void capidev_free(struct capidev *cdev)
+{
+	unsigned long flags;
+
+	if (cdev->ap.applid) {
+		capi20_release(&cdev->ap);
+		cdev->ap.applid = 0;
+	}
+	skb_queue_purge(&cdev->recvqueue);
+
+	down(&cdev->ncci_list_sem);
+	capincci_free(cdev, 0xffffffff);
+	up(&cdev->ncci_list_sem);
+
+	write_lock_irqsave(&capidev_list_lock, flags);
+	list_del(&cdev->list);
+	write_unlock_irqrestore(&capidev_list_lock, flags);
+	kfree(cdev);
+}
+
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+/* -------- handle data queue --------------------------------------- */
+
+static struct sk_buff *
+gen_data_b3_resp_for(struct capiminor *mp, struct sk_buff *skb)
+{
+	struct sk_buff *nskb;
+	nskb = alloc_skb(CAPI_DATA_B3_RESP_LEN, GFP_ATOMIC);
+	if (nskb) {
+		u16 datahandle = CAPIMSG_U16(skb->data,CAPIMSG_BASELEN+4+4+2);
+		unsigned char *s = skb_put(nskb, CAPI_DATA_B3_RESP_LEN);
+		capimsg_setu16(s, 0, CAPI_DATA_B3_RESP_LEN);
+		capimsg_setu16(s, 2, mp->ap->applid);
+		capimsg_setu8 (s, 4, CAPI_DATA_B3);
+		capimsg_setu8 (s, 5, CAPI_RESP);
+		capimsg_setu16(s, 6, mp->msgid++);
+		capimsg_setu32(s, 8, mp->ncci);
+		capimsg_setu16(s, 12, datahandle);
+	}
+	return nskb;
+}
+
+static int handle_recv_skb(struct capiminor *mp, struct sk_buff *skb)
+{
+	struct sk_buff *nskb;
+	int datalen;
+	u16 errcode, datahandle;
+	struct tty_ldisc *ld;
+	
+	datalen = skb->len - CAPIMSG_LEN(skb->data);
+	if (mp->tty == NULL)
+	{
+#ifdef _DEBUG_DATAFLOW
+		printk(KERN_DEBUG "capi: currently no receiver\n");
+#endif
+		return -1;
+	}
+	
+	ld = tty_ldisc_ref(mp->tty);
+	if (ld == NULL)
+		return -1;
+	if (ld->receive_buf == NULL) {
+#if defined(_DEBUG_DATAFLOW) || defined(_DEBUG_TTYFUNCS)
+		printk(KERN_DEBUG "capi: ldisc has no receive_buf function\n");
+#endif
+		goto bad;
+	}
+	if (mp->ttyinstop) {
+#if defined(_DEBUG_DATAFLOW) || defined(_DEBUG_TTYFUNCS)
+		printk(KERN_DEBUG "capi: recv tty throttled\n");
+#endif
+		goto bad;
+	}
+	if (ld->receive_room &&
+	    ld->receive_room(mp->tty) < datalen) {
+#if defined(_DEBUG_DATAFLOW) || defined(_DEBUG_TTYFUNCS)
+		printk(KERN_DEBUG "capi: no room in tty\n");
+#endif
+		goto bad;
+	}
+	if ((nskb = gen_data_b3_resp_for(mp, skb)) == 0) {
+		printk(KERN_ERR "capi: gen_data_b3_resp failed\n");
+		goto bad;
+	}
+	datahandle = CAPIMSG_U16(skb->data,CAPIMSG_BASELEN+4);
+	errcode = capi20_put_message(mp->ap, nskb);
+	if (errcode != CAPI_NOERROR) {
+		printk(KERN_ERR "capi: send DATA_B3_RESP failed=%x\n",
+				errcode);
+		kfree_skb(nskb);
+		goto bad;
+	}
+	(void)skb_pull(skb, CAPIMSG_LEN(skb->data));
+#ifdef _DEBUG_DATAFLOW
+	printk(KERN_DEBUG "capi: DATA_B3_RESP %u len=%d => ldisc\n",
+				datahandle, skb->len);
+#endif
+	ld->receive_buf(mp->tty, skb->data, NULL, skb->len);
+	kfree_skb(skb);
+	tty_ldisc_deref(ld);
+	return 0;
+bad:
+	tty_ldisc_deref(ld);
+	return -1;
+}
+
+static void handle_minor_recv(struct capiminor *mp)
+{
+	struct sk_buff *skb;
+	while ((skb = skb_dequeue(&mp->inqueue)) != 0) {
+		unsigned int len = skb->len;
+		mp->inbytes -= len;
+		if (handle_recv_skb(mp, skb) < 0) {
+			skb_queue_head(&mp->inqueue, skb);
+			mp->inbytes += len;
+			return;
+		}
+	}
+}
+
+static int handle_minor_send(struct capiminor *mp)
+{
+	struct sk_buff *skb;
+	u16 len;
+	int count = 0;
+	u16 errcode;
+	u16 datahandle;
+
+	if (mp->tty && mp->ttyoutstop) {
+#if defined(_DEBUG_DATAFLOW) || defined(_DEBUG_TTYFUNCS)
+		printk(KERN_DEBUG "capi: send: tty stopped\n");
+#endif
+		return 0;
+	}
+
+	while ((skb = skb_dequeue(&mp->outqueue)) != 0) {
+		datahandle = mp->datahandle;
+		len = (u16)skb->len;
+		skb_push(skb, CAPI_DATA_B3_REQ_LEN);
+		memset(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
+		capimsg_setu16(skb->data, 0, CAPI_DATA_B3_REQ_LEN);
+		capimsg_setu16(skb->data, 2, mp->ap->applid);
+		capimsg_setu8 (skb->data, 4, CAPI_DATA_B3);
+		capimsg_setu8 (skb->data, 5, CAPI_REQ);
+		capimsg_setu16(skb->data, 6, mp->msgid++);
+		capimsg_setu32(skb->data, 8, mp->ncci);	/* NCCI */
+		capimsg_setu32(skb->data, 12, (u32) skb->data); /* Data32 */
+		capimsg_setu16(skb->data, 16, len);	/* Data length */
+		capimsg_setu16(skb->data, 18, datahandle);
+		capimsg_setu16(skb->data, 20, 0);	/* Flags */
+
+		if (capincci_add_ack(mp, datahandle) < 0) {
+			skb_pull(skb, CAPI_DATA_B3_REQ_LEN);
+			skb_queue_head(&mp->outqueue, skb);
+			return count;
+		}
+		errcode = capi20_put_message(mp->ap, skb);
+		if (errcode == CAPI_NOERROR) {
+			mp->datahandle++;
+			count++;
+			mp->outbytes -= len;
+#ifdef _DEBUG_DATAFLOW
+			printk(KERN_DEBUG "capi: DATA_B3_REQ %u len=%u\n",
+							datahandle, len);
+#endif
+			continue;
+		}
+		capiminor_del_ack(mp, datahandle);
+
+		if (errcode == CAPI_SENDQUEUEFULL) {
+			skb_pull(skb, CAPI_DATA_B3_REQ_LEN);
+			skb_queue_head(&mp->outqueue, skb);
+			break;
+		}
+
+		/* ups, drop packet */
+		printk(KERN_ERR "capi: put_message = %x\n", errcode);
+		mp->outbytes -= len;
+		kfree_skb(skb);
+	}
+	return count;
+}
+
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+/* -------- function called by lower level -------------------------- */
+
+static void capi_recv_message(struct capi20_appl *ap, struct sk_buff *skb)
+{
+	struct capidev *cdev = ap->private;
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+	struct capiminor *mp;
+	u16 datahandle;
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+	struct capincci *np;
+	u32 ncci;
+
+	if (CAPIMSG_CMD(skb->data) == CAPI_CONNECT_B3_CONF) {
+		u16 info = CAPIMSG_U16(skb->data, 12); // Info field
+		if (info == 0) {
+			down(&cdev->ncci_list_sem);
+			capincci_alloc(cdev, CAPIMSG_NCCI(skb->data));
+			up(&cdev->ncci_list_sem);
+		}
+	}
+	if (CAPIMSG_CMD(skb->data) == CAPI_CONNECT_B3_IND) {
+		down(&cdev->ncci_list_sem);
+		capincci_alloc(cdev, CAPIMSG_NCCI(skb->data));
+		up(&cdev->ncci_list_sem);
+	}
+	if (CAPIMSG_COMMAND(skb->data) != CAPI_DATA_B3) {
+		skb_queue_tail(&cdev->recvqueue, skb);
+		wake_up_interruptible(&cdev->recvwait);
+		return;
+	}
+	ncci = CAPIMSG_CONTROL(skb->data);
+	for (np = cdev->nccis; np && np->ncci != ncci; np = np->next)
+		;
+	if (!np) {
+		printk(KERN_ERR "BUG: capi_signal: ncci not found\n");
+		skb_queue_tail(&cdev->recvqueue, skb);
+		wake_up_interruptible(&cdev->recvwait);
+		return;
+	}
+#ifndef CONFIG_ISDN_CAPI_MIDDLEWARE
+	skb_queue_tail(&cdev->recvqueue, skb);
+	wake_up_interruptible(&cdev->recvwait);
+#else /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+	mp = np->minorp;
+	if (!mp) {
+		skb_queue_tail(&cdev->recvqueue, skb);
+		wake_up_interruptible(&cdev->recvwait);
+		return;
+	}
+
+
+	if (CAPIMSG_SUBCOMMAND(skb->data) == CAPI_IND) {
+		
+		datahandle = CAPIMSG_U16(skb->data, CAPIMSG_BASELEN+4+4+2);
+#ifdef _DEBUG_DATAFLOW
+		printk(KERN_DEBUG "capi_signal: DATA_B3_IND %u len=%d\n",
+				datahandle, skb->len-CAPIMSG_LEN(skb->data));
+#endif
+		skb_queue_tail(&mp->inqueue, skb);
+		mp->inbytes += skb->len;
+		handle_minor_recv(mp);
+
+	} else if (CAPIMSG_SUBCOMMAND(skb->data) == CAPI_CONF) {
+
+		datahandle = CAPIMSG_U16(skb->data, CAPIMSG_BASELEN+4);
+#ifdef _DEBUG_DATAFLOW
+		printk(KERN_DEBUG "capi_signal: DATA_B3_CONF %u 0x%x\n",
+				datahandle,
+				CAPIMSG_U16(skb->data, CAPIMSG_BASELEN+4+2));
+#endif
+		kfree_skb(skb);
+		(void)capiminor_del_ack(mp, datahandle);
+		if (mp->tty)
+			tty_wakeup(mp->tty);
+		(void)handle_minor_send(mp);
+
+	} else {
+		/* ups, let capi application handle it :-) */
+		skb_queue_tail(&cdev->recvqueue, skb);
+		wake_up_interruptible(&cdev->recvwait);
+	}
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+}
+
+/* -------- file_operations for capidev ----------------------------- */
+
+static ssize_t
+capi_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
+{
+	struct capidev *cdev = (struct capidev *)file->private_data;
+	struct sk_buff *skb;
+	size_t copied;
+
+	if (!cdev->ap.applid)
+		return -ENODEV;
+
+	if ((skb = skb_dequeue(&cdev->recvqueue)) == 0) {
+
+		if (file->f_flags & O_NONBLOCK)
+			return -EAGAIN;
+
+		for (;;) {
+			interruptible_sleep_on(&cdev->recvwait);
+			if ((skb = skb_dequeue(&cdev->recvqueue)) != 0)
+				break;
+			if (signal_pending(current))
+				break;
+		}
+		if (skb == 0)
+			return -ERESTARTNOHAND;
+	}
+	if (skb->len > count) {
+		skb_queue_head(&cdev->recvqueue, skb);
+		return -EMSGSIZE;
+	}
+	if (copy_to_user(buf, skb->data, skb->len)) {
+		skb_queue_head(&cdev->recvqueue, skb);
+		return -EFAULT;
+	}
+	copied = skb->len;
+
+	kfree_skb(skb);
+
+	return copied;
+}
+
+static ssize_t
+capi_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
+{
+	struct capidev *cdev = (struct capidev *)file->private_data;
+	struct sk_buff *skb;
+	u16 mlen;
+
+	if (!cdev->ap.applid)
+		return -ENODEV;
+
+	skb = alloc_skb(count, GFP_USER);
+	if (!skb)
+		return -ENOMEM;
+
+	if (copy_from_user(skb_put(skb, count), buf, count)) {
+		kfree_skb(skb);
+		return -EFAULT;
+	}
+	mlen = CAPIMSG_LEN(skb->data);
+	if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_REQ) {
+		if ((size_t)(mlen + CAPIMSG_DATALEN(skb->data)) != count) {
+			kfree_skb(skb);
+			return -EINVAL;
+		}
+	} else {
+		if (mlen != count) {
+			kfree_skb(skb);
+			return -EINVAL;
+		}
+	}
+	CAPIMSG_SETAPPID(skb->data, cdev->ap.applid);
+
+	if (CAPIMSG_CMD(skb->data) == CAPI_DISCONNECT_B3_RESP) {
+		down(&cdev->ncci_list_sem);
+		capincci_free(cdev, CAPIMSG_NCCI(skb->data));
+		up(&cdev->ncci_list_sem);
+	}
+
+	cdev->errcode = capi20_put_message(&cdev->ap, skb);
+
+	if (cdev->errcode) {
+		kfree_skb(skb);
+		return -EIO;
+	}
+	return count;
+}
+
+static unsigned int
+capi_poll(struct file *file, poll_table * wait)
+{
+	struct capidev *cdev = (struct capidev *)file->private_data;
+	unsigned int mask = 0;
+
+	if (!cdev->ap.applid)
+		return POLLERR;
+
+	poll_wait(file, &(cdev->recvwait), wait);
+	mask = POLLOUT | POLLWRNORM;
+	if (!skb_queue_empty(&cdev->recvqueue))
+		mask |= POLLIN | POLLRDNORM;
+	return mask;
+}
+
+static int
+capi_ioctl(struct inode *inode, struct file *file,
+	   unsigned int cmd, unsigned long arg)
+{
+	struct capidev *cdev = file->private_data;
+	struct capi20_appl *ap = &cdev->ap;
+	capi_ioctl_struct data;
+	int retval = -EINVAL;
+	void __user *argp = (void __user *)arg;
+
+	switch (cmd) {
+	case CAPI_REGISTER:
+		{
+			if (ap->applid)
+				return -EEXIST;
+
+			if (copy_from_user(&cdev->ap.rparam, argp,
+					   sizeof(struct capi_register_params)))
+				return -EFAULT;
+			
+			cdev->ap.private = cdev;
+			cdev->ap.recv_message = capi_recv_message;
+			cdev->errcode = capi20_register(ap);
+			if (cdev->errcode) {
+				ap->applid = 0;
+				return -EIO;
+			}
+		}
+		return (int)ap->applid;
+
+	case CAPI_GET_VERSION:
+		{
+			if (copy_from_user(&data.contr, argp,
+						sizeof(data.contr)))
+				return -EFAULT;
+		        cdev->errcode = capi20_get_version(data.contr, &data.version);
+			if (cdev->errcode)
+				return -EIO;
+			if (copy_to_user(argp, &data.version,
+					 sizeof(data.version)))
+				return -EFAULT;
+		}
+		return 0;
+
+	case CAPI_GET_SERIAL:
+		{
+			if (copy_from_user(&data.contr, argp,
+					   sizeof(data.contr)))
+				return -EFAULT;
+			cdev->errcode = capi20_get_serial (data.contr, data.serial);
+			if (cdev->errcode)
+				return -EIO;
+			if (copy_to_user(argp, data.serial,
+					 sizeof(data.serial)))
+				return -EFAULT;
+		}
+		return 0;
+	case CAPI_GET_PROFILE:
+		{
+			if (copy_from_user(&data.contr, argp,
+					   sizeof(data.contr)))
+				return -EFAULT;
+
+			if (data.contr == 0) {
+				cdev->errcode = capi20_get_profile(data.contr, &data.profile);
+				if (cdev->errcode)
+					return -EIO;
+
+				retval = copy_to_user(argp,
+				      &data.profile.ncontroller,
+				       sizeof(data.profile.ncontroller));
+
+			} else {
+				cdev->errcode = capi20_get_profile(data.contr, &data.profile);
+				if (cdev->errcode)
+					return -EIO;
+
+				retval = copy_to_user(argp, &data.profile,
+						   sizeof(data.profile));
+			}
+			if (retval)
+				return -EFAULT;
+		}
+		return 0;
+
+	case CAPI_GET_MANUFACTURER:
+		{
+			if (copy_from_user(&data.contr, argp,
+					   sizeof(data.contr)))
+				return -EFAULT;
+			cdev->errcode = capi20_get_manufacturer(data.contr, data.manufacturer);
+			if (cdev->errcode)
+				return -EIO;
+
+			if (copy_to_user(argp, data.manufacturer,
+					 sizeof(data.manufacturer)))
+				return -EFAULT;
+
+		}
+		return 0;
+	case CAPI_GET_ERRCODE:
+		data.errcode = cdev->errcode;
+		cdev->errcode = CAPI_NOERROR;
+		if (arg) {
+			if (copy_to_user(argp, &data.errcode,
+					 sizeof(data.errcode)))
+				return -EFAULT;
+		}
+		return data.errcode;
+
+	case CAPI_INSTALLED:
+		if (capi20_isinstalled() == CAPI_NOERROR)
+			return 0;
+		return -ENXIO;
+
+	case CAPI_MANUFACTURER_CMD:
+		{
+			struct capi_manufacturer_cmd mcmd;
+			if (!capable(CAP_SYS_ADMIN))
+				return -EPERM;
+			if (copy_from_user(&mcmd, argp, sizeof(mcmd)))
+				return -EFAULT;
+			return capi20_manufacturer(mcmd.cmd, mcmd.data);
+		}
+		return 0;
+
+	case CAPI_SET_FLAGS:
+	case CAPI_CLR_FLAGS:
+		{
+			unsigned userflags;
+			if (copy_from_user(&userflags, argp,
+					   sizeof(userflags)))
+				return -EFAULT;
+			if (cmd == CAPI_SET_FLAGS)
+				cdev->userflags |= userflags;
+			else
+				cdev->userflags &= ~userflags;
+		}
+		return 0;
+
+	case CAPI_GET_FLAGS:
+		if (copy_to_user(argp, &cdev->userflags,
+				 sizeof(cdev->userflags)))
+			return -EFAULT;
+		return 0;
+
+	case CAPI_NCCI_OPENCOUNT:
+		{
+			struct capincci *nccip;
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+			struct capiminor *mp;
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+			unsigned ncci;
+			int count = 0;
+			if (copy_from_user(&ncci, argp, sizeof(ncci)))
+				return -EFAULT;
+
+			down(&cdev->ncci_list_sem);
+			if ((nccip = capincci_find(cdev, (u32) ncci)) == 0) {
+				up(&cdev->ncci_list_sem);
+				return 0;
+			}
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+			if ((mp = nccip->minorp) != 0) {
+				count += atomic_read(&mp->ttyopencount);
+			}
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+			up(&cdev->ncci_list_sem);
+			return count;
+		}
+		return 0;
+
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+	case CAPI_NCCI_GETUNIT:
+		{
+			struct capincci *nccip;
+			struct capiminor *mp;
+			unsigned ncci;
+			int unit = 0;
+			if (copy_from_user(&ncci, argp,
+					   sizeof(ncci)))
+				return -EFAULT;
+			down(&cdev->ncci_list_sem);
+			nccip = capincci_find(cdev, (u32) ncci);
+			if (!nccip || (mp = nccip->minorp) == 0) {
+				up(&cdev->ncci_list_sem);
+				return -ESRCH;
+			}
+			unit = mp->minor;
+			up(&cdev->ncci_list_sem);
+			return unit;
+		}
+		return 0;
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+	}
+	return -EINVAL;
+}
+
+static int
+capi_open(struct inode *inode, struct file *file)
+{
+	if (file->private_data)
+		return -EEXIST;
+
+	if ((file->private_data = capidev_alloc()) == 0)
+		return -ENOMEM;
+
+	return nonseekable_open(inode, file);
+}
+
+static int
+capi_release(struct inode *inode, struct file *file)
+{
+	struct capidev *cdev = (struct capidev *)file->private_data;
+
+	capidev_free(cdev);
+	file->private_data = NULL;
+	
+	return 0;
+}
+
+static struct file_operations capi_fops =
+{
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.read		= capi_read,
+	.write		= capi_write,
+	.poll		= capi_poll,
+	.ioctl		= capi_ioctl,
+	.open		= capi_open,
+	.release	= capi_release,
+};
+
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+/* -------- tty_operations for capincci ----------------------------- */
+
+static int capinc_tty_open(struct tty_struct * tty, struct file * file)
+{
+	struct capiminor *mp;
+
+	if ((mp = capiminor_find(iminor(file->f_dentry->d_inode))) == 0)
+		return -ENXIO;
+	if (mp->nccip == 0)
+		return -ENXIO;
+
+	tty->driver_data = (void *)mp;
+
+	if (atomic_read(&mp->ttyopencount) == 0)
+		mp->tty = tty;
+	atomic_inc(&mp->ttyopencount);
+#ifdef _DEBUG_REFCOUNT
+	printk(KERN_DEBUG "capinc_tty_open ocount=%d\n", atomic_read(&mp->ttyopencount));
+#endif
+	handle_minor_recv(mp);
+	return 0;
+}
+
+static void capinc_tty_close(struct tty_struct * tty, struct file * file)
+{
+	struct capiminor *mp;
+
+	mp = (struct capiminor *)tty->driver_data;
+	if (mp)	{
+		if (atomic_dec_and_test(&mp->ttyopencount)) {
+#ifdef _DEBUG_REFCOUNT
+			printk(KERN_DEBUG "capinc_tty_close lastclose\n");
+#endif
+			tty->driver_data = NULL;
+			mp->tty = NULL;
+		}
+#ifdef _DEBUG_REFCOUNT
+		printk(KERN_DEBUG "capinc_tty_close ocount=%d\n", atomic_read(&mp->ttyopencount));
+#endif
+		if (mp->nccip == 0)
+			capiminor_free(mp);
+	}
+
+#ifdef _DEBUG_REFCOUNT
+	printk(KERN_DEBUG "capinc_tty_close\n");
+#endif
+}
+
+static int capinc_tty_write(struct tty_struct * tty,
+			    const unsigned char *buf, int count)
+{
+	struct capiminor *mp = (struct capiminor *)tty->driver_data;
+	struct sk_buff *skb;
+
+#ifdef _DEBUG_TTYFUNCS
+	printk(KERN_DEBUG "capinc_tty_write(count=%d)\n", count);
+#endif
+
+	if (!mp || !mp->nccip) {
+#ifdef _DEBUG_TTYFUNCS
+		printk(KERN_DEBUG "capinc_tty_write: mp or mp->ncci NULL\n");
+#endif
+		return 0;
+	}
+
+	skb = mp->ttyskb;
+	if (skb) {
+		mp->ttyskb = NULL;
+		skb_queue_tail(&mp->outqueue, skb);
+		mp->outbytes += skb->len;
+	}
+
+	skb = alloc_skb(CAPI_DATA_B3_REQ_LEN+count, GFP_ATOMIC);
+	if (!skb) {
+		printk(KERN_ERR "capinc_tty_write: alloc_skb failed\n");
+		return -ENOMEM;
+	}
+
+	skb_reserve(skb, CAPI_DATA_B3_REQ_LEN);
+	memcpy(skb_put(skb, count), buf, count);
+
+	skb_queue_tail(&mp->outqueue, skb);
+	mp->outbytes += skb->len;
+	(void)handle_minor_send(mp);
+	(void)handle_minor_recv(mp);
+	return count;
+}
+
+static void capinc_tty_put_char(struct tty_struct *tty, unsigned char ch)
+{
+	struct capiminor *mp = (struct capiminor *)tty->driver_data;
+	struct sk_buff *skb;
+
+#ifdef _DEBUG_TTYFUNCS
+	printk(KERN_DEBUG "capinc_put_char(%u)\n", ch);
+#endif
+
+	if (!mp || !mp->nccip) {
+#ifdef _DEBUG_TTYFUNCS
+		printk(KERN_DEBUG "capinc_tty_put_char: mp or mp->ncci NULL\n");
+#endif
+		return;
+	}
+
+	skb = mp->ttyskb;
+	if (skb) {
+		if (skb_tailroom(skb) > 0) {
+			*(skb_put(skb, 1)) = ch;
+			return;
+		}
+		mp->ttyskb = NULL;
+		skb_queue_tail(&mp->outqueue, skb);
+		mp->outbytes += skb->len;
+		(void)handle_minor_send(mp);
+	}
+	skb = alloc_skb(CAPI_DATA_B3_REQ_LEN+CAPI_MAX_BLKSIZE, GFP_ATOMIC);
+	if (skb) {
+		skb_reserve(skb, CAPI_DATA_B3_REQ_LEN);
+		*(skb_put(skb, 1)) = ch;
+		mp->ttyskb = skb;
+	} else {
+		printk(KERN_ERR "capinc_put_char: char %u lost\n", ch);
+	}
+}
+
+static void capinc_tty_flush_chars(struct tty_struct *tty)
+{
+	struct capiminor *mp = (struct capiminor *)tty->driver_data;
+	struct sk_buff *skb;
+
+#ifdef _DEBUG_TTYFUNCS
+	printk(KERN_DEBUG "capinc_tty_flush_chars\n");
+#endif
+
+	if (!mp || !mp->nccip) {
+#ifdef _DEBUG_TTYFUNCS
+		printk(KERN_DEBUG "capinc_tty_flush_chars: mp or mp->ncci NULL\n");
+#endif
+		return;
+	}
+
+	skb = mp->ttyskb;
+	if (skb) {
+		mp->ttyskb = NULL;
+		skb_queue_tail(&mp->outqueue, skb);
+		mp->outbytes += skb->len;
+		(void)handle_minor_send(mp);
+	}
+	(void)handle_minor_recv(mp);
+}
+
+static int capinc_tty_write_room(struct tty_struct *tty)
+{
+	struct capiminor *mp = (struct capiminor *)tty->driver_data;
+	int room;
+	if (!mp || !mp->nccip) {
+#ifdef _DEBUG_TTYFUNCS
+		printk(KERN_DEBUG "capinc_tty_write_room: mp or mp->ncci NULL\n");
+#endif
+		return 0;
+	}
+	room = CAPINC_MAX_SENDQUEUE-skb_queue_len(&mp->outqueue);
+	room *= CAPI_MAX_BLKSIZE;
+#ifdef _DEBUG_TTYFUNCS
+	printk(KERN_DEBUG "capinc_tty_write_room = %d\n", room);
+#endif
+	return room;
+}
+
+int capinc_tty_chars_in_buffer(struct tty_struct *tty)
+{
+	struct capiminor *mp = (struct capiminor *)tty->driver_data;
+	if (!mp || !mp->nccip) {
+#ifdef _DEBUG_TTYFUNCS
+		printk(KERN_DEBUG "capinc_tty_chars_in_buffer: mp or mp->ncci NULL\n");
+#endif
+		return 0;
+	}
+#ifdef _DEBUG_TTYFUNCS
+	printk(KERN_DEBUG "capinc_tty_chars_in_buffer = %d nack=%d sq=%d rq=%d\n",
+			mp->outbytes, mp->nack,
+			skb_queue_len(&mp->outqueue),
+			skb_queue_len(&mp->inqueue));
+#endif
+	return mp->outbytes;
+}
+
+static int capinc_tty_ioctl(struct tty_struct *tty, struct file * file,
+		    unsigned int cmd, unsigned long arg)
+{
+	int error = 0;
+	switch (cmd) {
+	default:
+		error = n_tty_ioctl (tty, file, cmd, arg);
+		break;
+	}
+	return error;
+}
+
+static void capinc_tty_set_termios(struct tty_struct *tty, struct termios * old)
+{
+#ifdef _DEBUG_TTYFUNCS
+	printk(KERN_DEBUG "capinc_tty_set_termios\n");
+#endif
+}
+
+static void capinc_tty_throttle(struct tty_struct * tty)
+{
+	struct capiminor *mp = (struct capiminor *)tty->driver_data;
+#ifdef _DEBUG_TTYFUNCS
+	printk(KERN_DEBUG "capinc_tty_throttle\n");
+#endif
+	if (mp)
+		mp->ttyinstop = 1;
+}
+
+static void capinc_tty_unthrottle(struct tty_struct * tty)
+{
+	struct capiminor *mp = (struct capiminor *)tty->driver_data;
+#ifdef _DEBUG_TTYFUNCS
+	printk(KERN_DEBUG "capinc_tty_unthrottle\n");
+#endif
+	if (mp) {
+		mp->ttyinstop = 0;
+		handle_minor_recv(mp);
+	}
+}
+
+static void capinc_tty_stop(struct tty_struct *tty)
+{
+	struct capiminor *mp = (struct capiminor *)tty->driver_data;
+#ifdef _DEBUG_TTYFUNCS
+	printk(KERN_DEBUG "capinc_tty_stop\n");
+#endif
+	if (mp) {
+		mp->ttyoutstop = 1;
+	}
+}
+
+static void capinc_tty_start(struct tty_struct *tty)
+{
+	struct capiminor *mp = (struct capiminor *)tty->driver_data;
+#ifdef _DEBUG_TTYFUNCS
+	printk(KERN_DEBUG "capinc_tty_start\n");
+#endif
+	if (mp) {
+		mp->ttyoutstop = 0;
+		(void)handle_minor_send(mp);
+	}
+}
+
+static void capinc_tty_hangup(struct tty_struct *tty)
+{
+#ifdef _DEBUG_TTYFUNCS
+	printk(KERN_DEBUG "capinc_tty_hangup\n");
+#endif
+}
+
+static void capinc_tty_break_ctl(struct tty_struct *tty, int state)
+{
+#ifdef _DEBUG_TTYFUNCS
+	printk(KERN_DEBUG "capinc_tty_break_ctl(%d)\n", state);
+#endif
+}
+
+static void capinc_tty_flush_buffer(struct tty_struct *tty)
+{
+#ifdef _DEBUG_TTYFUNCS
+	printk(KERN_DEBUG "capinc_tty_flush_buffer\n");
+#endif
+}
+
+static void capinc_tty_set_ldisc(struct tty_struct *tty)
+{
+#ifdef _DEBUG_TTYFUNCS
+	printk(KERN_DEBUG "capinc_tty_set_ldisc\n");
+#endif
+}
+
+static void capinc_tty_send_xchar(struct tty_struct *tty, char ch)
+{
+#ifdef _DEBUG_TTYFUNCS
+	printk(KERN_DEBUG "capinc_tty_send_xchar(%d)\n", ch);
+#endif
+}
+
+static int capinc_tty_read_proc(char *page, char **start, off_t off,
+				int count, int *eof, void *data)
+{
+	return 0;
+}
+
+static struct tty_driver *capinc_tty_driver;
+
+static struct tty_operations capinc_ops = {
+	.open = capinc_tty_open,
+	.close = capinc_tty_close,
+	.write = capinc_tty_write,
+	.put_char = capinc_tty_put_char,
+	.flush_chars = capinc_tty_flush_chars,
+	.write_room = capinc_tty_write_room,
+	.chars_in_buffer = capinc_tty_chars_in_buffer,
+	.ioctl = capinc_tty_ioctl,
+	.set_termios = capinc_tty_set_termios,
+	.throttle = capinc_tty_throttle,
+	.unthrottle = capinc_tty_unthrottle,
+	.stop = capinc_tty_stop,
+	.start = capinc_tty_start,
+	.hangup = capinc_tty_hangup,
+	.break_ctl = capinc_tty_break_ctl,
+	.flush_buffer = capinc_tty_flush_buffer,
+	.set_ldisc = capinc_tty_set_ldisc,
+	.send_xchar = capinc_tty_send_xchar,
+	.read_proc = capinc_tty_read_proc,
+};
+
+static int capinc_tty_init(void)
+{
+	struct tty_driver *drv;
+	
+	if (capi_ttyminors > CAPINC_MAX_PORTS)
+		capi_ttyminors = CAPINC_MAX_PORTS;
+	if (capi_ttyminors <= 0)
+		capi_ttyminors = CAPINC_NR_PORTS;
+
+	drv = alloc_tty_driver(capi_ttyminors);
+	if (!drv)
+		return -ENOMEM;
+
+	drv->owner = THIS_MODULE;
+	drv->driver_name = "capi_nc";
+	drv->devfs_name = "capi/";
+	drv->name = "capi";
+	drv->major = capi_ttymajor;
+	drv->minor_start = 0;
+	drv->type = TTY_DRIVER_TYPE_SERIAL;
+	drv->subtype = SERIAL_TYPE_NORMAL;
+	drv->init_termios = tty_std_termios;
+	drv->init_termios.c_iflag = ICRNL;
+	drv->init_termios.c_oflag = OPOST | ONLCR;
+	drv->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+	drv->init_termios.c_lflag = 0;
+	drv->flags = TTY_DRIVER_REAL_RAW|TTY_DRIVER_RESET_TERMIOS;
+	tty_set_operations(drv, &capinc_ops);
+	if (tty_register_driver(drv)) {
+		put_tty_driver(drv);
+		printk(KERN_ERR "Couldn't register capi_nc driver\n");
+		return -1;
+	}
+	capinc_tty_driver = drv;
+	return 0;
+}
+
+static void capinc_tty_exit(void)
+{
+	struct tty_driver *drv = capinc_tty_driver;
+	int retval;
+	if ((retval = tty_unregister_driver(drv)))
+		printk(KERN_ERR "capi: failed to unregister capi_nc driver (%d)\n", retval);
+	put_tty_driver(drv);
+}
+
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+
+/* -------- /proc functions ----------------------------------------- */
+
+/*
+ * /proc/capi/capi20:
+ *  minor applid nrecvctlpkt nrecvdatapkt nsendctlpkt nsenddatapkt
+ */
+static int proc_capidev_read_proc(char *page, char **start, off_t off,
+                                       int count, int *eof, void *data)
+{
+        struct capidev *cdev;
+	struct list_head *l;
+	int len = 0;
+
+	read_lock(&capidev_list_lock);
+	list_for_each(l, &capidev_list) {
+		cdev = list_entry(l, struct capidev, list);
+		len += sprintf(page+len, "0 %d %lu %lu %lu %lu\n",
+			cdev->ap.applid,
+			cdev->ap.nrecvctlpkt,
+			cdev->ap.nrecvdatapkt,
+			cdev->ap.nsentctlpkt,
+			cdev->ap.nsentdatapkt);
+		if (len <= off) {
+			off -= len;
+			len = 0;
+		} else {
+			if (len-off > count)
+				goto endloop;
+		}
+	}
+
+endloop:
+	read_unlock(&capidev_list_lock);
+	if (len < count)
+		*eof = 1;
+	if (len > count) len = count;
+	if (len < 0) len = 0;
+	return len;
+}
+
+/*
+ * /proc/capi/capi20ncci:
+ *  applid ncci
+ */
+static int proc_capincci_read_proc(char *page, char **start, off_t off,
+                                       int count, int *eof, void *data)
+{
+        struct capidev *cdev;
+        struct capincci *np;
+	struct list_head *l;
+	int len = 0;
+
+	read_lock(&capidev_list_lock);
+	list_for_each(l, &capidev_list) {
+		cdev = list_entry(l, struct capidev, list);
+		for (np=cdev->nccis; np; np = np->next) {
+			len += sprintf(page+len, "%d 0x%x\n",
+				       cdev->ap.applid,
+				       np->ncci);
+			if (len <= off) {
+				off -= len;
+				len = 0;
+			} else {
+				if (len-off > count)
+					goto endloop;
+			}
+		}
+	}
+endloop:
+	read_unlock(&capidev_list_lock);
+	*start = page+off;
+	if (len < count)
+		*eof = 1;
+	if (len>count) len = count;
+	if (len<0) len = 0;
+	return len;
+}
+
+static struct procfsentries {
+  char *name;
+  mode_t mode;
+  int (*read_proc)(char *page, char **start, off_t off,
+                                       int count, int *eof, void *data);
+  struct proc_dir_entry *procent;
+} procfsentries[] = {
+   /* { "capi",		  S_IFDIR, 0 }, */
+   { "capi/capi20", 	  0	 , proc_capidev_read_proc },
+   { "capi/capi20ncci",   0	 , proc_capincci_read_proc },
+};
+
+static void __init proc_init(void)
+{
+    int nelem = sizeof(procfsentries)/sizeof(procfsentries[0]);
+    int i;
+
+    for (i=0; i < nelem; i++) {
+        struct procfsentries *p = procfsentries + i;
+	p->procent = create_proc_entry(p->name, p->mode, NULL);
+	if (p->procent) p->procent->read_proc = p->read_proc;
+    }
+}
+
+static void __exit proc_exit(void)
+{
+    int nelem = sizeof(procfsentries)/sizeof(procfsentries[0]);
+    int i;
+
+    for (i=nelem-1; i >= 0; i--) {
+        struct procfsentries *p = procfsentries + i;
+	if (p->procent) {
+	   remove_proc_entry(p->name, NULL);
+	   p->procent = NULL;
+	}
+    }
+}
+
+/* -------- init function and module interface ---------------------- */
+
+
+static char rev[32];
+
+static int __init capi_init(void)
+{
+	char *p;
+	char *compileinfo;
+
+	if ((p = strchr(revision, ':')) != 0 && p[1]) {
+		strlcpy(rev, p + 2, sizeof(rev));
+		if ((p = strchr(rev, '$')) != 0 && p > rev)
+		   *(p-1) = 0;
+	} else
+		strcpy(rev, "1.0");
+
+	if (register_chrdev(capi_major, "capi20", &capi_fops)) {
+		printk(KERN_ERR "capi20: unable to get major %d\n", capi_major);
+		return -EIO;
+	}
+
+	capi_class = class_simple_create(THIS_MODULE, "capi");
+	if (IS_ERR(capi_class)) {
+		unregister_chrdev(capi_major, "capi20");
+		return PTR_ERR(capi_class);
+	}
+
+	class_simple_device_add(capi_class, MKDEV(capi_major, 0), NULL, "capi");
+	devfs_mk_cdev(MKDEV(capi_major, 0), S_IFCHR | S_IRUSR | S_IWUSR,
+			"isdn/capi20");
+
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+	if (capinc_tty_init() < 0) {
+		class_simple_device_remove(MKDEV(capi_major, 0));
+		class_simple_destroy(capi_class);
+		unregister_chrdev(capi_major, "capi20");
+		return -ENOMEM;
+	}
+#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
+
+	proc_init();
+
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+#if defined(CONFIG_ISDN_CAPI_CAPIFS) || defined(CONFIG_ISDN_CAPI_CAPIFS_MODULE)
+        compileinfo = " (middleware+capifs)";
+#else
+        compileinfo = " (no capifs)";
+#endif
+#else
+        compileinfo = " (no middleware)";
+#endif
+	printk(KERN_NOTICE "capi20: Rev %s: started up with major %d%s\n",
+				rev, capi_major, compileinfo);
+
+	return 0;
+}
+
+static void __exit capi_exit(void)
+{
+	proc_exit();
+
+	class_simple_device_remove(MKDEV(capi_major, 0));
+	class_simple_destroy(capi_class);
+	unregister_chrdev(capi_major, "capi20");
+	devfs_remove("isdn/capi20");
+
+#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
+	capinc_tty_exit();
+#endif
+	printk(KERN_NOTICE "capi: Rev %s: unloaded\n", rev);
+}
+
+module_init(capi_init);
+module_exit(capi_exit);
diff --git a/drivers/isdn/capi/capidrv.c b/drivers/isdn/capi/capidrv.c
new file mode 100644
index 000000000000..d10c8b82e6aa
--- /dev/null
+++ b/drivers/isdn/capi/capidrv.c
@@ -0,0 +1,2315 @@
+/* $Id: capidrv.c,v 1.1.2.2 2004/01/12 23:17:24 keil Exp $
+ *
+ * ISDN4Linux Driver, using capi20 interface (kernelcapi)
+ *
+ * Copyright 1997 by Carsten Paeth <calle@calle.de>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/fcntl.h>
+#include <linux/fs.h>
+#include <linux/signal.h>
+#include <linux/mm.h>
+#include <linux/timer.h>
+#include <linux/wait.h>
+#include <linux/skbuff.h>
+#include <linux/isdn.h>
+#include <linux/isdnif.h>
+#include <linux/proc_fs.h>
+#include <linux/capi.h>
+#include <linux/kernelcapi.h>
+#include <linux/ctype.h>
+#include <linux/init.h>
+#include <linux/moduleparam.h>
+
+#include <linux/isdn/capiutil.h>
+#include <linux/isdn/capicmd.h>
+#include "capidrv.h"
+
+static char *revision = "$Revision: 1.1.2.2 $";
+static int debugmode = 0;
+
+MODULE_DESCRIPTION("CAPI4Linux: Interface to ISDN4Linux");
+MODULE_AUTHOR("Carsten Paeth");
+MODULE_LICENSE("GPL");
+module_param(debugmode, uint, 0);
+
+/* -------- type definitions ----------------------------------------- */
+
+
+struct capidrv_contr {
+
+	struct capidrv_contr *next;
+	struct module *owner;
+	u32 contrnr;
+	char name[20];
+
+	/*
+	 * for isdn4linux
+	 */
+	isdn_if interface;
+	int myid;
+
+	/*
+	 * LISTEN state
+	 */
+	int state;
+	u32 cipmask;
+	u32 cipmask2;
+        struct timer_list listentimer;
+
+	/*
+	 * ID of capi message sent
+	 */
+	u16 msgid;
+
+	/*
+	 * B-Channels
+	 */
+	int nbchan;
+	struct capidrv_bchan {
+		struct capidrv_contr *contr;
+		u8 msn[ISDN_MSNLEN];
+		int l2;
+		int l3;
+		u8 num[ISDN_MSNLEN];
+		u8 mynum[ISDN_MSNLEN];
+		int si1;
+		int si2;
+		int incoming;
+		int disconnecting;
+		struct capidrv_plci {
+			struct capidrv_plci *next;
+			u32 plci;
+			u32 ncci;	/* ncci for CONNECT_ACTIVE_IND */
+			u16 msgid;	/* to identfy CONNECT_CONF */
+			int chan;
+			int state;
+			int leasedline;
+			struct capidrv_ncci {
+				struct capidrv_ncci *next;
+				struct capidrv_plci *plcip;
+				u32 ncci;
+				u16 msgid;	/* to identfy CONNECT_B3_CONF */
+				int chan;
+				int state;
+				int oldstate;
+				/* */
+				u16 datahandle;
+				struct ncci_datahandle_queue {
+				    struct ncci_datahandle_queue *next;
+				    u16                         datahandle;
+				    int                           len;
+				} *ackqueue;
+			} *ncci_list;
+		} *plcip;
+		struct capidrv_ncci *nccip;
+	} *bchans;
+
+	struct capidrv_plci *plci_list;
+
+	/* for q931 data */
+	u8  q931_buf[4096];
+	u8 *q931_read;
+	u8 *q931_write;
+	u8 *q931_end;
+};
+
+
+struct capidrv_data {
+	struct capi20_appl ap;
+	int ncontr;
+	struct capidrv_contr *contr_list;
+};
+
+typedef struct capidrv_plci capidrv_plci;
+typedef struct capidrv_ncci capidrv_ncci;
+typedef struct capidrv_contr capidrv_contr;
+typedef struct capidrv_data capidrv_data;
+typedef struct capidrv_bchan capidrv_bchan;
+
+/* -------- data definitions ----------------------------------------- */
+
+static capidrv_data global;
+static DEFINE_SPINLOCK(global_lock);
+
+static void handle_dtrace_data(capidrv_contr *card,
+	int send, int level2, u8 *data, u16 len);
+
+/* -------- convert functions ---------------------------------------- */
+
+static inline u32 b1prot(int l2, int l3)
+{
+	switch (l2) {
+	case ISDN_PROTO_L2_X75I:
+	case ISDN_PROTO_L2_X75UI:
+	case ISDN_PROTO_L2_X75BUI:
+		return 0;
+	case ISDN_PROTO_L2_HDLC:
+	default:
+		return 0;
+	case ISDN_PROTO_L2_TRANS:
+		return 1;
+        case ISDN_PROTO_L2_V11096:
+        case ISDN_PROTO_L2_V11019:
+        case ISDN_PROTO_L2_V11038:
+		return 2;
+        case ISDN_PROTO_L2_FAX:
+		return 4;
+	case ISDN_PROTO_L2_MODEM:
+		return 8;
+	}
+}
+
+static inline u32 b2prot(int l2, int l3)
+{
+	switch (l2) {
+	case ISDN_PROTO_L2_X75I:
+	case ISDN_PROTO_L2_X75UI:
+	case ISDN_PROTO_L2_X75BUI:
+	default:
+		return 0;
+	case ISDN_PROTO_L2_HDLC:
+	case ISDN_PROTO_L2_TRANS:
+        case ISDN_PROTO_L2_V11096:
+        case ISDN_PROTO_L2_V11019:
+        case ISDN_PROTO_L2_V11038:
+	case ISDN_PROTO_L2_MODEM:
+		return 1;
+        case ISDN_PROTO_L2_FAX:
+		return 4;
+	}
+}
+
+static inline u32 b3prot(int l2, int l3)
+{
+	switch (l2) {
+	case ISDN_PROTO_L2_X75I:
+	case ISDN_PROTO_L2_X75UI:
+	case ISDN_PROTO_L2_X75BUI:
+	case ISDN_PROTO_L2_HDLC:
+	case ISDN_PROTO_L2_TRANS:
+        case ISDN_PROTO_L2_V11096:
+        case ISDN_PROTO_L2_V11019:
+        case ISDN_PROTO_L2_V11038:
+	case ISDN_PROTO_L2_MODEM:
+	default:
+		return 0;
+        case ISDN_PROTO_L2_FAX:
+		return 4;
+	}
+}
+
+static _cstruct b1config_async_v110(u16 rate)
+{
+	/* CAPI-Spec "B1 Configuration" */
+	static unsigned char buf[9];
+	buf[0] = 8; /* len */
+	/* maximum bitrate */
+	buf[1] = rate & 0xff; buf[2] = (rate >> 8) & 0xff;
+	buf[3] = 8; buf[4] = 0; /* 8 bits per character */
+	buf[5] = 0; buf[6] = 0; /* parity none */
+	buf[7] = 0; buf[8] = 0; /* 1 stop bit */
+	return buf;
+}
+
+static _cstruct b1config(int l2, int l3)
+{
+	switch (l2) {
+	case ISDN_PROTO_L2_X75I:
+	case ISDN_PROTO_L2_X75UI:
+	case ISDN_PROTO_L2_X75BUI:
+	case ISDN_PROTO_L2_HDLC:
+	case ISDN_PROTO_L2_TRANS:
+	default:
+		return NULL;
+        case ISDN_PROTO_L2_V11096:
+	    return b1config_async_v110(9600);
+        case ISDN_PROTO_L2_V11019:
+	    return b1config_async_v110(19200);
+        case ISDN_PROTO_L2_V11038:
+	    return b1config_async_v110(38400);
+	}
+}
+
+static inline u16 si2cip(u8 si1, u8 si2)
+{
+	static const u8 cip[17][5] =
+	{
+	/*  0  1  2  3  4  */
+		{0, 0, 0, 0, 0},	/*0 */
+		{16, 16, 4, 26, 16},	/*1 */
+		{17, 17, 17, 4, 4},	/*2 */
+		{2, 2, 2, 2, 2},	/*3 */
+		{18, 18, 18, 18, 18},	/*4 */
+		{2, 2, 2, 2, 2},	/*5 */
+		{0, 0, 0, 0, 0},	/*6 */
+		{2, 2, 2, 2, 2},	/*7 */
+		{2, 2, 2, 2, 2},	/*8 */
+		{21, 21, 21, 21, 21},	/*9 */
+		{19, 19, 19, 19, 19},	/*10 */
+		{0, 0, 0, 0, 0},	/*11 */
+		{0, 0, 0, 0, 0},	/*12 */
+		{0, 0, 0, 0, 0},	/*13 */
+		{0, 0, 0, 0, 0},	/*14 */
+		{22, 22, 22, 22, 22},	/*15 */
+		{27, 27, 27, 28, 27}	/*16 */
+	};
+	if (si1 > 16)
+		si1 = 0;
+	if (si2 > 4)
+		si2 = 0;
+
+	return (u16) cip[si1][si2];
+}
+
+static inline u8 cip2si1(u16 cipval)
+{
+	static const u8 si[32] =
+	{7, 1, 7, 7, 1, 1, 7, 7,	/*0-7 */
+	 7, 1, 0, 0, 0, 0, 0, 0,	/*8-15 */
+	 1, 2, 4, 10, 9, 9, 15, 7,	/*16-23 */
+	 7, 7, 1, 16, 16, 0, 0, 0};	/*24-31 */
+
+	if (cipval > 31)
+		cipval = 0;	/* .... */
+	return si[cipval];
+}
+
+static inline u8 cip2si2(u16 cipval)
+{
+	static const u8 si[32] =
+	{0, 0, 0, 0, 2, 3, 0, 0,	/*0-7 */
+	 0, 3, 0, 0, 0, 0, 0, 0,	/*8-15 */
+	 1, 2, 0, 0, 9, 0, 0, 0,	/*16-23 */
+	 0, 0, 3, 2, 3, 0, 0, 0};	/*24-31 */
+
+	if (cipval > 31)
+		cipval = 0;	/* .... */
+	return si[cipval];
+}
+
+
+/* -------- controller management ------------------------------------- */
+
+static inline capidrv_contr *findcontrbydriverid(int driverid)
+{
+    	unsigned long flags;
+	capidrv_contr *p;
+
+	spin_lock_irqsave(&global_lock, flags);
+	for (p = global.contr_list; p; p = p->next)
+		if (p->myid == driverid)
+			break;
+	spin_unlock_irqrestore(&global_lock, flags);
+	return p;
+}
+
+static capidrv_contr *findcontrbynumber(u32 contr)
+{
+	unsigned long flags;
+	capidrv_contr *p = global.contr_list;
+
+	spin_lock_irqsave(&global_lock, flags);
+	for (p = global.contr_list; p; p = p->next)
+		if (p->contrnr == contr)
+			break;
+	spin_unlock_irqrestore(&global_lock, flags);
+	return p;
+}
+
+
+/* -------- plci management ------------------------------------------ */
+
+static capidrv_plci *new_plci(capidrv_contr * card, int chan)
+{
+	capidrv_plci *plcip;
+
+	plcip = (capidrv_plci *) kmalloc(sizeof(capidrv_plci), GFP_ATOMIC);
+
+	if (plcip == 0)
+		return NULL;
+
+	memset(plcip, 0, sizeof(capidrv_plci));
+	plcip->state = ST_PLCI_NONE;
+	plcip->plci = 0;
+	plcip->msgid = 0;
+	plcip->chan = chan;
+	plcip->next = card->plci_list;
+	card->plci_list = plcip;
+	card->bchans[chan].plcip = plcip;
+
+	return plcip;
+}
+
+static capidrv_plci *find_plci_by_plci(capidrv_contr * card, u32 plci)
+{
+	capidrv_plci *p;
+	for (p = card->plci_list; p; p = p->next)
+		if (p->plci == plci)
+			return p;
+	return NULL;
+}
+
+static capidrv_plci *find_plci_by_msgid(capidrv_contr * card, u16 msgid)
+{
+	capidrv_plci *p;
+	for (p = card->plci_list; p; p = p->next)
+		if (p->msgid == msgid)
+			return p;
+	return NULL;
+}
+
+static capidrv_plci *find_plci_by_ncci(capidrv_contr * card, u32 ncci)
+{
+	capidrv_plci *p;
+	for (p = card->plci_list; p; p = p->next)
+		if (p->plci == (ncci & 0xffff))
+			return p;
+	return NULL;
+}
+
+static void free_plci(capidrv_contr * card, capidrv_plci * plcip)
+{
+	capidrv_plci **pp;
+
+	for (pp = &card->plci_list; *pp; pp = &(*pp)->next) {
+		if (*pp == plcip) {
+			*pp = (*pp)->next;
+			card->bchans[plcip->chan].plcip = NULL;
+			card->bchans[plcip->chan].disconnecting = 0;
+			card->bchans[plcip->chan].incoming = 0;
+			kfree(plcip);
+			return;
+		}
+	}
+	printk(KERN_ERR "capidrv-%d: free_plci %p (0x%x) not found, Huh?\n",
+	       card->contrnr, plcip, plcip->plci);
+}
+
+/* -------- ncci management ------------------------------------------ */
+
+static inline capidrv_ncci *new_ncci(capidrv_contr * card,
+				     capidrv_plci * plcip,
+				     u32 ncci)
+{
+	capidrv_ncci *nccip;
+
+	nccip = (capidrv_ncci *) kmalloc(sizeof(capidrv_ncci), GFP_ATOMIC);
+
+	if (nccip == 0)
+		return NULL;
+
+	memset(nccip, 0, sizeof(capidrv_ncci));
+	nccip->ncci = ncci;
+	nccip->state = ST_NCCI_NONE;
+	nccip->plcip = plcip;
+	nccip->chan = plcip->chan;
+	nccip->datahandle = 0;
+
+	nccip->next = plcip->ncci_list;
+	plcip->ncci_list = nccip;
+
+	card->bchans[plcip->chan].nccip = nccip;
+
+	return nccip;
+}
+
+static inline capidrv_ncci *find_ncci(capidrv_contr * card, u32 ncci)
+{
+	capidrv_plci *plcip;
+	capidrv_ncci *p;
+
+	if ((plcip = find_plci_by_ncci(card, ncci)) == 0)
+		return NULL;
+
+	for (p = plcip->ncci_list; p; p = p->next)
+		if (p->ncci == ncci)
+			return p;
+	return NULL;
+}
+
+static inline capidrv_ncci *find_ncci_by_msgid(capidrv_contr * card,
+					       u32 ncci, u16 msgid)
+{
+	capidrv_plci *plcip;
+	capidrv_ncci *p;
+
+	if ((plcip = find_plci_by_ncci(card, ncci)) == 0)
+		return NULL;
+
+	for (p = plcip->ncci_list; p; p = p->next)
+		if (p->msgid == msgid)
+			return p;
+	return NULL;
+}
+
+static void free_ncci(capidrv_contr * card, struct capidrv_ncci *nccip)
+{
+	struct capidrv_ncci **pp;
+
+	for (pp = &(nccip->plcip->ncci_list); *pp; pp = &(*pp)->next) {
+		if (*pp == nccip) {
+			*pp = (*pp)->next;
+			break;
+		}
+	}
+	card->bchans[nccip->chan].nccip = NULL;
+	kfree(nccip);
+}
+
+static int capidrv_add_ack(struct capidrv_ncci *nccip,
+		           u16 datahandle, int len)
+{
+	struct ncci_datahandle_queue *n, **pp;
+
+	n = (struct ncci_datahandle_queue *)
+		kmalloc(sizeof(struct ncci_datahandle_queue), GFP_ATOMIC);
+	if (!n) {
+	   printk(KERN_ERR "capidrv: kmalloc ncci_datahandle failed\n");
+	   return -1;
+	}
+	n->next = NULL;
+	n->datahandle = datahandle;
+	n->len = len;
+	for (pp = &nccip->ackqueue; *pp; pp = &(*pp)->next) ;
+	*pp = n;
+	return 0;
+}
+
+static int capidrv_del_ack(struct capidrv_ncci *nccip, u16 datahandle)
+{
+	struct ncci_datahandle_queue **pp, *p;
+	int len;
+
+	for (pp = &nccip->ackqueue; *pp; pp = &(*pp)->next) {
+ 		if ((*pp)->datahandle == datahandle) {
+			p = *pp;
+			len = p->len;
+			*pp = (*pp)->next;
+		        kfree(p);
+			return len;
+		}
+	}
+	return -1;
+}
+
+/* -------- convert and send capi message ---------------------------- */
+
+static void send_message(capidrv_contr * card, _cmsg * cmsg)
+{
+	struct sk_buff *skb;
+	size_t len;
+	capi_cmsg2message(cmsg, cmsg->buf);
+	len = CAPIMSG_LEN(cmsg->buf);
+	skb = alloc_skb(len, GFP_ATOMIC);
+	memcpy(skb_put(skb, len), cmsg->buf, len);
+	if (capi20_put_message(&global.ap, skb) != CAPI_NOERROR)
+		kfree_skb(skb);
+}
+
+/* -------- state machine -------------------------------------------- */
+
+struct listenstatechange {
+	int actstate;
+	int nextstate;
+	int event;
+};
+
+static struct listenstatechange listentable[] =
+{
+  {ST_LISTEN_NONE, ST_LISTEN_WAIT_CONF, EV_LISTEN_REQ},
+  {ST_LISTEN_ACTIVE, ST_LISTEN_ACTIVE_WAIT_CONF, EV_LISTEN_REQ},
+  {ST_LISTEN_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_ERROR},
+  {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_ERROR},
+  {ST_LISTEN_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_EMPTY},
+  {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_NONE, EV_LISTEN_CONF_EMPTY},
+  {ST_LISTEN_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_OK},
+  {ST_LISTEN_ACTIVE_WAIT_CONF, ST_LISTEN_ACTIVE, EV_LISTEN_CONF_OK},
+  {},
+};
+
+static void listen_change_state(capidrv_contr * card, int event)
+{
+	struct listenstatechange *p = listentable;
+	while (p->event) {
+		if (card->state == p->actstate && p->event == event) {
+			if (debugmode)
+				printk(KERN_DEBUG "capidrv-%d: listen_change_state %d -> %d\n",
+				       card->contrnr, card->state, p->nextstate);
+			card->state = p->nextstate;
+			return;
+		}
+		p++;
+	}
+	printk(KERN_ERR "capidrv-%d: listen_change_state state=%d event=%d ????\n",
+	       card->contrnr, card->state, event);
+
+}
+
+/* ------------------------------------------------------------------ */
+
+static void p0(capidrv_contr * card, capidrv_plci * plci)
+{
+	isdn_ctrl cmd;
+
+	card->bchans[plci->chan].contr = NULL;
+	cmd.command = ISDN_STAT_DHUP;
+	cmd.driver = card->myid;
+	cmd.arg = plci->chan;
+	card->interface.statcallb(&cmd);
+	free_plci(card, plci);
+}
+
+/* ------------------------------------------------------------------ */
+
+struct plcistatechange {
+	int actstate;
+	int nextstate;
+	int event;
+	void (*changefunc) (capidrv_contr * card, capidrv_plci * plci);
+};
+
+static struct plcistatechange plcitable[] =
+{
+  /* P-0 */
+  {ST_PLCI_NONE, ST_PLCI_OUTGOING, EV_PLCI_CONNECT_REQ, NULL},
+  {ST_PLCI_NONE, ST_PLCI_ALLOCATED, EV_PLCI_FACILITY_IND_UP, NULL},
+  {ST_PLCI_NONE, ST_PLCI_INCOMING, EV_PLCI_CONNECT_IND, NULL},
+  {ST_PLCI_NONE, ST_PLCI_RESUMEING, EV_PLCI_RESUME_REQ, NULL},
+  /* P-0.1 */
+  {ST_PLCI_OUTGOING, ST_PLCI_NONE, EV_PLCI_CONNECT_CONF_ERROR, p0},
+  {ST_PLCI_OUTGOING, ST_PLCI_ALLOCATED, EV_PLCI_CONNECT_CONF_OK, NULL},
+  /* P-1 */
+  {ST_PLCI_ALLOCATED, ST_PLCI_ACTIVE, EV_PLCI_CONNECT_ACTIVE_IND, NULL},
+  {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
+  {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
+  {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
+  /* P-ACT */
+  {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
+  {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
+  {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
+  {ST_PLCI_ACTIVE, ST_PLCI_HELD, EV_PLCI_HOLD_IND, NULL},
+  {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_SUSPEND_IND, NULL},
+  /* P-2 */
+  {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_CONNECT_REJECT, NULL},
+  {ST_PLCI_INCOMING, ST_PLCI_FACILITY_IND, EV_PLCI_FACILITY_IND_UP, NULL},
+  {ST_PLCI_INCOMING, ST_PLCI_ACCEPTING, EV_PLCI_CONNECT_RESP, NULL},
+  {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
+  {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
+  {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
+  {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_CD_IND, NULL},
+  /* P-3 */
+  {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_CONNECT_REJECT, NULL},
+  {ST_PLCI_FACILITY_IND, ST_PLCI_ACCEPTING, EV_PLCI_CONNECT_ACTIVE_IND, NULL},
+  {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
+  {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
+  {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
+  /* P-4 */
+  {ST_PLCI_ACCEPTING, ST_PLCI_ACTIVE, EV_PLCI_CONNECT_ACTIVE_IND, NULL},
+  {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, NULL},
+  {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, NULL},
+  {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
+  /* P-5 */
+  {ST_PLCI_DISCONNECTING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, NULL},
+  /* P-6 */
+  {ST_PLCI_DISCONNECTED, ST_PLCI_NONE, EV_PLCI_DISCONNECT_RESP, p0},
+  /* P-0.Res */
+  {ST_PLCI_RESUMEING, ST_PLCI_NONE, EV_PLCI_RESUME_CONF_ERROR, p0},
+  {ST_PLCI_RESUMEING, ST_PLCI_RESUME, EV_PLCI_RESUME_CONF_OK, NULL},
+  /* P-RES */
+  {ST_PLCI_RESUME, ST_PLCI_ACTIVE, EV_PLCI_RESUME_IND, NULL},
+  /* P-HELD */
+  {ST_PLCI_HELD, ST_PLCI_ACTIVE, EV_PLCI_RETRIEVE_IND, NULL},
+  {},
+};
+
+static void plci_change_state(capidrv_contr * card, capidrv_plci * plci, int event)
+{
+	struct plcistatechange *p = plcitable;
+	while (p->event) {
+		if (plci->state == p->actstate && p->event == event) {
+			if (debugmode)
+				printk(KERN_DEBUG "capidrv-%d: plci_change_state:0x%x %d -> %d\n",
+				  card->contrnr, plci->plci, plci->state, p->nextstate);
+			plci->state = p->nextstate;
+			if (p->changefunc)
+				p->changefunc(card, plci);
+			return;
+		}
+		p++;
+	}
+	printk(KERN_ERR "capidrv-%d: plci_change_state:0x%x state=%d event=%d ????\n",
+	       card->contrnr, plci->plci, plci->state, event);
+}
+
+/* ------------------------------------------------------------------ */
+
+static _cmsg cmsg;
+
+static void n0(capidrv_contr * card, capidrv_ncci * ncci)
+{
+	isdn_ctrl cmd;
+
+	capi_fill_DISCONNECT_REQ(&cmsg,
+				 global.ap.applid,
+				 card->msgid++,
+				 ncci->plcip->plci,
+				 NULL,	/* BChannelinformation */
+				 NULL,	/* Keypadfacility */
+				 NULL,	/* Useruserdata */   /* $$$$ */
+				 NULL	/* Facilitydataarray */
+	);
+	send_message(card, &cmsg);
+	plci_change_state(card, ncci->plcip, EV_PLCI_DISCONNECT_REQ);
+
+	cmd.command = ISDN_STAT_BHUP;
+	cmd.driver = card->myid;
+	cmd.arg = ncci->chan;
+	card->interface.statcallb(&cmd);
+	free_ncci(card, ncci);
+}
+
+/* ------------------------------------------------------------------ */
+
+struct nccistatechange {
+	int actstate;
+	int nextstate;
+	int event;
+	void (*changefunc) (capidrv_contr * card, capidrv_ncci * ncci);
+};
+
+static struct nccistatechange nccitable[] =
+{
+  /* N-0 */
+  {ST_NCCI_NONE, ST_NCCI_OUTGOING, EV_NCCI_CONNECT_B3_REQ, NULL},
+  {ST_NCCI_NONE, ST_NCCI_INCOMING, EV_NCCI_CONNECT_B3_IND, NULL},
+  /* N-0.1 */
+  {ST_NCCI_OUTGOING, ST_NCCI_ALLOCATED, EV_NCCI_CONNECT_B3_CONF_OK, NULL},
+  {ST_NCCI_OUTGOING, ST_NCCI_NONE, EV_NCCI_CONNECT_B3_CONF_ERROR, n0},
+  /* N-1 */
+  {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTING, EV_NCCI_CONNECT_B3_REJECT, NULL},
+  {ST_NCCI_INCOMING, ST_NCCI_ALLOCATED, EV_NCCI_CONNECT_B3_RESP, NULL},
+  {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
+  {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
+  /* N-2 */
+  {ST_NCCI_ALLOCATED, ST_NCCI_ACTIVE, EV_NCCI_CONNECT_B3_ACTIVE_IND, NULL},
+  {ST_NCCI_ALLOCATED, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
+  {ST_NCCI_ALLOCATED, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
+  /* N-ACT */
+  {ST_NCCI_ACTIVE, ST_NCCI_ACTIVE, EV_NCCI_RESET_B3_IND, NULL},
+  {ST_NCCI_ACTIVE, ST_NCCI_RESETING, EV_NCCI_RESET_B3_REQ, NULL},
+  {ST_NCCI_ACTIVE, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
+  {ST_NCCI_ACTIVE, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
+  /* N-3 */
+  {ST_NCCI_RESETING, ST_NCCI_ACTIVE, EV_NCCI_RESET_B3_IND, NULL},
+  {ST_NCCI_RESETING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
+  {ST_NCCI_RESETING, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, NULL},
+  /* N-4 */
+  {ST_NCCI_DISCONNECTING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, NULL},
+  {ST_NCCI_DISCONNECTING, ST_NCCI_PREVIOUS, EV_NCCI_DISCONNECT_B3_CONF_ERROR,NULL},
+  /* N-5 */
+  {ST_NCCI_DISCONNECTED, ST_NCCI_NONE, EV_NCCI_DISCONNECT_B3_RESP, n0},
+  {},
+};
+
+static void ncci_change_state(capidrv_contr * card, capidrv_ncci * ncci, int event)
+{
+	struct nccistatechange *p = nccitable;
+	while (p->event) {
+		if (ncci->state == p->actstate && p->event == event) {
+			if (debugmode)
+				printk(KERN_DEBUG "capidrv-%d: ncci_change_state:0x%x %d -> %d\n",
+				  card->contrnr, ncci->ncci, ncci->state, p->nextstate);
+			if (p->nextstate == ST_NCCI_PREVIOUS) {
+				ncci->state = ncci->oldstate;
+				ncci->oldstate = p->actstate;
+			} else {
+				ncci->oldstate = p->actstate;
+				ncci->state = p->nextstate;
+			}
+			if (p->changefunc)
+				p->changefunc(card, ncci);
+			return;
+		}
+		p++;
+	}
+	printk(KERN_ERR "capidrv-%d: ncci_change_state:0x%x state=%d event=%d ????\n",
+	       card->contrnr, ncci->ncci, ncci->state, event);
+}
+
+/* ------------------------------------------------------------------- */
+
+static inline int new_bchan(capidrv_contr * card)
+{
+	int i;
+	for (i = 0; i < card->nbchan; i++) {
+		if (card->bchans[i].plcip == 0) {
+			card->bchans[i].disconnecting = 0;
+			return i;
+		}
+	}
+	return -1;
+}
+
+/* ------------------------------------------------------------------- */
+
+static void handle_controller(_cmsg * cmsg)
+{
+	capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
+
+	if (!card) {
+		printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
+		       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+		       cmsg->adr.adrController & 0x7f);
+		return;
+	}
+	switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) {
+
+	case CAPI_LISTEN_CONF:	/* Controller */
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv-%d: listenconf Info=0x%4x (%s) cipmask=0x%x\n",
+			       card->contrnr, cmsg->Info, capi_info2str(cmsg->Info), card->cipmask);
+		if (cmsg->Info) {
+			listen_change_state(card, EV_LISTEN_CONF_ERROR);
+		} else if (card->cipmask == 0) {
+			listen_change_state(card, EV_LISTEN_CONF_EMPTY);
+		} else {
+			listen_change_state(card, EV_LISTEN_CONF_OK);
+		}
+		break;
+
+	case CAPI_MANUFACTURER_IND:	/* Controller */
+		if (   cmsg->ManuID == 0x214D5641
+		    && cmsg->Class == 0
+		    && cmsg->Function == 1) {
+		   u8  *data = cmsg->ManuData+3;
+		   u16  len = cmsg->ManuData[0];
+		   u16 layer;
+		   int direction;
+		   if (len == 255) {
+		      len = (cmsg->ManuData[1] | (cmsg->ManuData[2] << 8));
+		      data += 2;
+		   }
+		   len -= 2;
+		   layer = ((*(data-1)) << 8) | *(data-2);
+		   if (layer & 0x300)
+			direction = (layer & 0x200) ? 0 : 1;
+		   else direction = (layer & 0x800) ? 0 : 1;
+		   if (layer & 0x0C00) {
+		   	if ((layer & 0xff) == 0x80) {
+		           handle_dtrace_data(card, direction, 1, data, len);
+		           break;
+		   	}
+		   } else if ((layer & 0xff) < 0x80) {
+		      handle_dtrace_data(card, direction, 0, data, len);
+		      break;
+		   }
+	           printk(KERN_INFO "capidrv-%d: %s from controller 0x%x layer 0x%x, ignored\n",
+                        card->contrnr, 
+			capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+			cmsg->adr.adrController, layer);
+                   break;
+		}
+		goto ignored;
+	case CAPI_MANUFACTURER_CONF:	/* Controller */
+		if (cmsg->ManuID == 0x214D5641) {
+		   char *s = NULL;
+		   switch (cmsg->Class) {
+		      case 0: break;
+		      case 1: s = "unknown class"; break;
+		      case 2: s = "unknown function"; break;
+		      default: s = "unkown error"; break;
+		   }
+		   if (s)
+	           printk(KERN_INFO "capidrv-%d: %s from controller 0x%x function %d: %s\n",
+			card->contrnr,
+			capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+			cmsg->adr.adrController,
+			cmsg->Function, s);
+		   break;
+		}
+		goto ignored;
+	case CAPI_FACILITY_IND:	/* Controller/plci/ncci */
+		goto ignored;
+	case CAPI_FACILITY_CONF:	/* Controller/plci/ncci */
+		goto ignored;
+	case CAPI_INFO_IND:	/* Controller/plci */
+		goto ignored;
+	case CAPI_INFO_CONF:	/* Controller/plci */
+		goto ignored;
+
+	default:
+		printk(KERN_ERR "capidrv-%d: got %s from controller 0x%x ???",
+		       card->contrnr,
+		       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+		       cmsg->adr.adrController);
+	}
+	return;
+
+      ignored:
+	printk(KERN_INFO "capidrv-%d: %s from controller 0x%x ignored\n",
+	       card->contrnr,
+	       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+	       cmsg->adr.adrController);
+}
+
+static void handle_incoming_call(capidrv_contr * card, _cmsg * cmsg)
+{
+	capidrv_plci *plcip;
+	capidrv_bchan *bchan;
+	isdn_ctrl cmd;
+	int chan;
+
+	if ((chan = new_bchan(card)) == -1) {
+		printk(KERN_ERR "capidrv-%d: incoming call on not existing bchan ?\n", card->contrnr);
+		return;
+	}
+	bchan = &card->bchans[chan];
+	if ((plcip = new_plci(card, chan)) == 0) {
+		printk(KERN_ERR "capidrv-%d: incoming call: no memory, sorry.\n", card->contrnr);
+		return;
+	}
+	bchan->incoming = 1;
+	plcip->plci = cmsg->adr.adrPLCI;
+	plci_change_state(card, plcip, EV_PLCI_CONNECT_IND);
+
+	cmd.command = ISDN_STAT_ICALL;
+	cmd.driver = card->myid;
+	cmd.arg = chan;
+	memset(&cmd.parm.setup, 0, sizeof(cmd.parm.setup));
+	strncpy(cmd.parm.setup.phone,
+	        cmsg->CallingPartyNumber + 3,
+		cmsg->CallingPartyNumber[0] - 2);
+	strncpy(cmd.parm.setup.eazmsn,
+	        cmsg->CalledPartyNumber + 2,
+		cmsg->CalledPartyNumber[0] - 1);
+	cmd.parm.setup.si1 = cip2si1(cmsg->CIPValue);
+	cmd.parm.setup.si2 = cip2si2(cmsg->CIPValue);
+	cmd.parm.setup.plan = cmsg->CallingPartyNumber[1];
+	cmd.parm.setup.screen = cmsg->CallingPartyNumber[2];
+
+	printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s\n", 
+			card->contrnr,
+			cmd.parm.setup.phone,
+			cmd.parm.setup.si1,
+			cmd.parm.setup.si2,
+			cmd.parm.setup.eazmsn);
+
+	if (cmd.parm.setup.si1 == 1 && cmd.parm.setup.si2 != 0) {
+		printk(KERN_INFO "capidrv-%d: patching si2=%d to 0 for VBOX\n", 
+			card->contrnr,
+			cmd.parm.setup.si2);
+		cmd.parm.setup.si2 = 0;
+	}
+
+	switch (card->interface.statcallb(&cmd)) {
+	case 0:
+	case 3:
+		/* No device matching this call.
+		 * and isdn_common.c has send a HANGUP command
+		 * which is ignored in state ST_PLCI_INCOMING,
+		 * so we send RESP to ignore the call
+		 */
+		capi_cmsg_answer(cmsg);
+		cmsg->Reject = 1;	/* ignore */
+		send_message(card, cmsg);
+		plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
+		printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s ignored\n",
+			card->contrnr,
+			cmd.parm.setup.phone,
+			cmd.parm.setup.si1,
+			cmd.parm.setup.si2,
+			cmd.parm.setup.eazmsn);
+		break;
+	case 1:
+		/* At least one device matching this call (RING on ttyI)
+		 * HL-driver may send ALERTING on the D-channel in this
+		 * case.
+		 * really means: RING on ttyI or a net interface
+		 * accepted this call already.
+		 *
+		 * If the call was accepted, state has already changed,
+		 * and CONNECT_RESP already sent.
+		 */
+		if (plcip->state == ST_PLCI_INCOMING) {
+			printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s tty alerting\n",
+				card->contrnr,
+				cmd.parm.setup.phone,
+				cmd.parm.setup.si1,
+				cmd.parm.setup.si2,
+				cmd.parm.setup.eazmsn);
+			capi_fill_ALERT_REQ(cmsg,
+					    global.ap.applid,
+					    card->msgid++,
+					    plcip->plci,	/* adr */
+					    NULL,/* BChannelinformation */
+					    NULL,/* Keypadfacility */
+					    NULL,/* Useruserdata */
+					    NULL /* Facilitydataarray */
+			);
+			plcip->msgid = cmsg->Messagenumber;
+			send_message(card, cmsg);
+		} else {
+			printk(KERN_INFO "capidrv-%d: incoming call %s,%d,%d,%s on netdev\n",
+				card->contrnr,
+				cmd.parm.setup.phone,
+				cmd.parm.setup.si1,
+				cmd.parm.setup.si2,
+				cmd.parm.setup.eazmsn);
+		}
+		break;
+
+	case 2:		/* Call will be rejected. */
+		capi_cmsg_answer(cmsg);
+		cmsg->Reject = 2;	/* reject call, normal call clearing */
+		send_message(card, cmsg);
+		plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
+		break;
+
+	default:
+		/* An error happened. (Invalid parameters for example.) */
+		capi_cmsg_answer(cmsg);
+		cmsg->Reject = 8;	/* reject call,
+					   destination out of order */
+		send_message(card, cmsg);
+		plci_change_state(card, plcip, EV_PLCI_CONNECT_REJECT);
+		break;
+	}
+	return;
+}
+
+static void handle_plci(_cmsg * cmsg)
+{
+	capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
+	capidrv_plci *plcip;
+	isdn_ctrl cmd;
+
+	if (!card) {
+		printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
+		       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+		       cmsg->adr.adrController & 0x7f);
+		return;
+	}
+	switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) {
+
+	case CAPI_DISCONNECT_IND:	/* plci */
+		if (cmsg->Reason) {
+			printk(KERN_INFO "capidrv-%d: %s reason 0x%x (%s) for plci 0x%x\n",
+			   card->contrnr,
+			   capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+			       cmsg->Reason, capi_info2str(cmsg->Reason), cmsg->adr.adrPLCI);
+		}
+		if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI))) {
+			capi_cmsg_answer(cmsg);
+			send_message(card, cmsg);
+			goto notfound;
+		}
+		card->bchans[plcip->chan].disconnecting = 1;
+		plci_change_state(card, plcip, EV_PLCI_DISCONNECT_IND);
+		capi_cmsg_answer(cmsg);
+		send_message(card, cmsg);
+		plci_change_state(card, plcip, EV_PLCI_DISCONNECT_RESP);
+		break;
+
+	case CAPI_DISCONNECT_CONF:	/* plci */
+		if (cmsg->Info) {
+			printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n",
+			   card->contrnr,
+			   capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+			       cmsg->Info, capi_info2str(cmsg->Info), 
+			       cmsg->adr.adrPLCI);
+		}
+		if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI)))
+			goto notfound;
+
+		card->bchans[plcip->chan].disconnecting = 1;
+		break;
+
+	case CAPI_ALERT_CONF:	/* plci */
+		if (cmsg->Info) {
+			printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n",
+			   card->contrnr,
+			   capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+			       cmsg->Info, capi_info2str(cmsg->Info), 
+			       cmsg->adr.adrPLCI);
+		}
+		break;
+
+	case CAPI_CONNECT_IND:	/* plci */
+		handle_incoming_call(card, cmsg);
+		break;
+
+	case CAPI_CONNECT_CONF:	/* plci */
+		if (cmsg->Info) {
+			printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for plci 0x%x\n",
+			   card->contrnr,
+			   capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+			       cmsg->Info, capi_info2str(cmsg->Info), 
+			       cmsg->adr.adrPLCI);
+		}
+		if (!(plcip = find_plci_by_msgid(card, cmsg->Messagenumber)))
+			goto notfound;
+
+		plcip->plci = cmsg->adr.adrPLCI;
+		if (cmsg->Info) {
+			plci_change_state(card, plcip, EV_PLCI_CONNECT_CONF_ERROR);
+		} else {
+			plci_change_state(card, plcip, EV_PLCI_CONNECT_CONF_OK);
+		}
+		break;
+
+	case CAPI_CONNECT_ACTIVE_IND:	/* plci */
+
+		if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI)))
+			goto notfound;
+
+		if (card->bchans[plcip->chan].incoming) {
+			capi_cmsg_answer(cmsg);
+			send_message(card, cmsg);
+			plci_change_state(card, plcip, EV_PLCI_CONNECT_ACTIVE_IND);
+		} else {
+			capidrv_ncci *nccip;
+			capi_cmsg_answer(cmsg);
+			send_message(card, cmsg);
+
+			nccip = new_ncci(card, plcip, cmsg->adr.adrPLCI);
+
+			if (!nccip) {
+				printk(KERN_ERR "capidrv-%d: no mem for ncci, sorry\n", card->contrnr);
+				break;	/* $$$$ */
+			}
+			capi_fill_CONNECT_B3_REQ(cmsg,
+						 global.ap.applid,
+						 card->msgid++,
+						 plcip->plci,	/* adr */
+						 NULL	/* NCPI */
+			);
+			nccip->msgid = cmsg->Messagenumber;
+			send_message(card, cmsg);
+			cmd.command = ISDN_STAT_DCONN;
+			cmd.driver = card->myid;
+			cmd.arg = plcip->chan;
+			card->interface.statcallb(&cmd);
+			plci_change_state(card, plcip, EV_PLCI_CONNECT_ACTIVE_IND);
+			ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_REQ);
+		}
+		break;
+
+	case CAPI_INFO_IND:	/* Controller/plci */
+
+		if (!(plcip = find_plci_by_plci(card, cmsg->adr.adrPLCI)))
+			goto notfound;
+
+		if (cmsg->InfoNumber == 0x4000) {
+			if (cmsg->InfoElement[0] == 4) {
+				cmd.command = ISDN_STAT_CINF;
+				cmd.driver = card->myid;
+				cmd.arg = plcip->chan;
+				sprintf(cmd.parm.num, "%lu",
+					(unsigned long)
+					((u32) cmsg->InfoElement[1]
+				  | ((u32) (cmsg->InfoElement[2]) << 8)
+				 | ((u32) (cmsg->InfoElement[3]) << 16)
+					 | ((u32) (cmsg->InfoElement[4]) << 24)));
+				card->interface.statcallb(&cmd);
+				break;
+			}
+		}
+		printk(KERN_ERR "capidrv-%d: %s\n",
+				card->contrnr, capi_cmsg2str(cmsg));
+		break;
+
+	case CAPI_CONNECT_ACTIVE_CONF:		/* plci */
+		goto ignored;
+	case CAPI_SELECT_B_PROTOCOL_CONF:	/* plci */
+		goto ignored;
+	case CAPI_FACILITY_IND:	/* Controller/plci/ncci */
+		goto ignored;
+	case CAPI_FACILITY_CONF:	/* Controller/plci/ncci */
+		goto ignored;
+
+	case CAPI_INFO_CONF:	/* Controller/plci */
+		goto ignored;
+
+	default:
+		printk(KERN_ERR "capidrv-%d: got %s for plci 0x%x ???",
+		       card->contrnr,
+		       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+		       cmsg->adr.adrPLCI);
+	}
+	return;
+      ignored:
+	printk(KERN_INFO "capidrv-%d: %s for plci 0x%x ignored\n",
+	       card->contrnr,
+	       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+	       cmsg->adr.adrPLCI);
+	return;
+      notfound:
+	printk(KERN_ERR "capidrv-%d: %s: plci 0x%x not found\n",
+	       card->contrnr,
+	       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+	       cmsg->adr.adrPLCI);
+	return;
+}
+
+static void handle_ncci(_cmsg * cmsg)
+{
+	capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
+	capidrv_plci *plcip;
+	capidrv_ncci *nccip;
+	isdn_ctrl cmd;
+	int len;
+
+	if (!card) {
+		printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
+		       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+		       cmsg->adr.adrController & 0x7f);
+		return;
+	}
+	switch (CAPICMD(cmsg->Command, cmsg->Subcommand)) {
+
+	case CAPI_CONNECT_B3_ACTIVE_IND:	/* ncci */
+		if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
+			goto notfound;
+
+		capi_cmsg_answer(cmsg);
+		send_message(card, cmsg);
+		ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_ACTIVE_IND);
+
+		cmd.command = ISDN_STAT_BCONN;
+		cmd.driver = card->myid;
+		cmd.arg = nccip->chan;
+		card->interface.statcallb(&cmd);
+
+		printk(KERN_INFO "capidrv-%d: chan %d up with ncci 0x%x\n",
+		       card->contrnr, nccip->chan, nccip->ncci);
+		break;
+
+	case CAPI_CONNECT_B3_ACTIVE_CONF:	/* ncci */
+		goto ignored;
+
+	case CAPI_CONNECT_B3_IND:	/* ncci */
+
+		plcip = find_plci_by_ncci(card, cmsg->adr.adrNCCI);
+		if (plcip) {
+			nccip = new_ncci(card, plcip, cmsg->adr.adrNCCI);
+			if (nccip) {
+				ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_IND);
+				capi_fill_CONNECT_B3_RESP(cmsg,
+							  global.ap.applid,
+							  card->msgid++,
+							  nccip->ncci,	/* adr */
+							  0,	/* Reject */
+							  NULL	/* NCPI */
+				);
+				send_message(card, cmsg);
+				ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_RESP);
+				break;
+			}
+			printk(KERN_ERR "capidrv-%d: no mem for ncci, sorry\n",							card->contrnr);
+		} else {
+			printk(KERN_ERR "capidrv-%d: %s: plci for ncci 0x%x not found\n",
+			   card->contrnr,
+			   capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+			       cmsg->adr.adrNCCI);
+		}
+		capi_fill_CONNECT_B3_RESP(cmsg,
+					  global.ap.applid,
+					  card->msgid++,
+					  cmsg->adr.adrNCCI,
+					  2,	/* Reject */
+					  NULL	/* NCPI */
+		);
+		send_message(card, cmsg);
+		break;
+
+	case CAPI_CONNECT_B3_CONF:	/* ncci */
+
+		if (!(nccip = find_ncci_by_msgid(card,
+						 cmsg->adr.adrNCCI,
+						 cmsg->Messagenumber)))
+			goto notfound;
+
+		nccip->ncci = cmsg->adr.adrNCCI;
+		if (cmsg->Info) {
+			printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for ncci 0x%x\n",
+			   card->contrnr,
+			   capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+			       cmsg->Info, capi_info2str(cmsg->Info), 
+			       cmsg->adr.adrNCCI);
+		}
+
+		if (cmsg->Info)
+			ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_CONF_ERROR);
+		else
+			ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_CONF_OK);
+		break;
+
+	case CAPI_CONNECT_B3_T90_ACTIVE_IND:	/* ncci */
+		capi_cmsg_answer(cmsg);
+		send_message(card, cmsg);
+		break;
+
+	case CAPI_DATA_B3_IND:	/* ncci */
+		/* handled in handle_data() */
+		goto ignored;
+
+	case CAPI_DATA_B3_CONF:	/* ncci */
+		if (cmsg->Info) {
+			printk(KERN_WARNING "CAPI_DATA_B3_CONF: Info %x - %s\n",
+				cmsg->Info, capi_info2str(cmsg->Info));
+		}
+		if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
+			goto notfound;
+
+		len = capidrv_del_ack(nccip, cmsg->DataHandle);
+		if (len < 0)
+			break;
+	        cmd.command = ISDN_STAT_BSENT;
+	        cmd.driver = card->myid;
+	        cmd.arg = nccip->chan;
+		cmd.parm.length = len;
+	        card->interface.statcallb(&cmd);
+		break;
+
+	case CAPI_DISCONNECT_B3_IND:	/* ncci */
+		if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
+			goto notfound;
+
+		card->bchans[nccip->chan].disconnecting = 1;
+		ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_IND);
+		capi_cmsg_answer(cmsg);
+		send_message(card, cmsg);
+		ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_RESP);
+		break;
+
+	case CAPI_DISCONNECT_B3_CONF:	/* ncci */
+		if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
+			goto notfound;
+		if (cmsg->Info) {
+			printk(KERN_INFO "capidrv-%d: %s info 0x%x (%s) for ncci 0x%x\n",
+			   card->contrnr,
+			   capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+			       cmsg->Info, capi_info2str(cmsg->Info), 
+			       cmsg->adr.adrNCCI);
+			ncci_change_state(card, nccip, EV_NCCI_DISCONNECT_B3_CONF_ERROR);
+		}
+		break;
+
+	case CAPI_RESET_B3_IND:	/* ncci */
+		if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
+			goto notfound;
+		ncci_change_state(card, nccip, EV_NCCI_RESET_B3_IND);
+		capi_cmsg_answer(cmsg);
+		send_message(card, cmsg);
+		break;
+
+	case CAPI_RESET_B3_CONF:	/* ncci */
+		goto ignored;	/* $$$$ */
+
+	case CAPI_FACILITY_IND:	/* Controller/plci/ncci */
+		goto ignored;
+	case CAPI_FACILITY_CONF:	/* Controller/plci/ncci */
+		goto ignored;
+
+	default:
+		printk(KERN_ERR "capidrv-%d: got %s for ncci 0x%x ???",
+		       card->contrnr,
+		       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+		       cmsg->adr.adrNCCI);
+	}
+	return;
+      ignored:
+	printk(KERN_INFO "capidrv-%d: %s for ncci 0x%x ignored\n",
+	       card->contrnr,
+	       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+	       cmsg->adr.adrNCCI);
+	return;
+      notfound:
+	printk(KERN_ERR "capidrv-%d: %s: ncci 0x%x not found\n",
+	       card->contrnr,
+	       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+	       cmsg->adr.adrNCCI);
+}
+
+
+static void handle_data(_cmsg * cmsg, struct sk_buff *skb)
+{
+	capidrv_contr *card = findcontrbynumber(cmsg->adr.adrController & 0x7f);
+	capidrv_ncci *nccip;
+
+	if (!card) {
+		printk(KERN_ERR "capidrv: %s from unknown controller 0x%x\n",
+		       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+		       cmsg->adr.adrController & 0x7f);
+		kfree_skb(skb);
+		return;
+	}
+	if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI))) {
+		printk(KERN_ERR "capidrv-%d: %s: ncci 0x%x not found\n",
+		       card->contrnr,
+		       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+		       cmsg->adr.adrNCCI);
+		kfree_skb(skb);
+		return;
+	}
+	(void) skb_pull(skb, CAPIMSG_LEN(skb->data));
+	card->interface.rcvcallb_skb(card->myid, nccip->chan, skb);
+	capi_cmsg_answer(cmsg);
+	send_message(card, cmsg);
+}
+
+static _cmsg s_cmsg;
+
+static void capidrv_recv_message(struct capi20_appl *ap, struct sk_buff *skb)
+{
+	capi_message2cmsg(&s_cmsg, skb->data);
+	if (debugmode > 3)
+		printk(KERN_DEBUG "capidrv_signal: applid=%d %s\n",
+		       ap->applid, capi_cmsg2str(&s_cmsg));
+	
+	if (s_cmsg.Command == CAPI_DATA_B3
+	    && s_cmsg.Subcommand == CAPI_IND) {
+		handle_data(&s_cmsg, skb);
+		return;
+	}
+	if ((s_cmsg.adr.adrController & 0xffffff00) == 0)
+		handle_controller(&s_cmsg);
+	else if ((s_cmsg.adr.adrPLCI & 0xffff0000) == 0)
+		handle_plci(&s_cmsg);
+	else
+		handle_ncci(&s_cmsg);
+	/*
+	 * data of skb used in s_cmsg,
+	 * free data when s_cmsg is not used again
+	 * thanks to Lars Heete <hel@admin.de>
+	 */
+	kfree_skb(skb);
+}
+
+/* ------------------------------------------------------------------- */
+
+#define PUTBYTE_TO_STATUS(card, byte) \
+	do { \
+		*(card)->q931_write++ = (byte); \
+        	if ((card)->q931_write > (card)->q931_end) \
+	  		(card)->q931_write = (card)->q931_buf; \
+	} while (0)
+
+static void handle_dtrace_data(capidrv_contr *card,
+			     int send, int level2, u8 *data, u16 len)
+{
+    	u8 *p, *end;
+    	isdn_ctrl cmd;
+
+    	if (!len) {
+		printk(KERN_DEBUG "capidrv-%d: avmb1_q931_data: len == %d\n",
+				card->contrnr, len);
+		return;
+	}
+
+	if (level2) {
+		PUTBYTE_TO_STATUS(card, 'D');
+		PUTBYTE_TO_STATUS(card, '2');
+        	PUTBYTE_TO_STATUS(card, send ? '>' : '<');
+        	PUTBYTE_TO_STATUS(card, ':');
+	} else {
+        	PUTBYTE_TO_STATUS(card, 'D');
+        	PUTBYTE_TO_STATUS(card, '3');
+        	PUTBYTE_TO_STATUS(card, send ? '>' : '<');
+        	PUTBYTE_TO_STATUS(card, ':');
+    	}
+
+	for (p = data, end = data+len; p < end; p++) {
+		u8 w;
+		PUTBYTE_TO_STATUS(card, ' ');
+		w = (*p >> 4) & 0xf;
+		PUTBYTE_TO_STATUS(card, (w < 10) ? '0'+w : 'A'-10+w);
+		w = *p & 0xf;
+		PUTBYTE_TO_STATUS(card, (w < 10) ? '0'+w : 'A'-10+w);
+	}
+	PUTBYTE_TO_STATUS(card, '\n');
+
+	cmd.command = ISDN_STAT_STAVAIL;
+	cmd.driver = card->myid;
+	cmd.arg = len*3+5;
+	card->interface.statcallb(&cmd);
+}
+
+/* ------------------------------------------------------------------- */
+
+static _cmsg cmdcmsg;
+
+static int capidrv_ioctl(isdn_ctrl * c, capidrv_contr * card)
+{
+	switch (c->arg) {
+	case 1:
+		debugmode = (int)(*((unsigned int *)c->parm.num));
+		printk(KERN_DEBUG "capidrv-%d: debugmode=%d\n",
+				card->contrnr, debugmode);
+		return 0;
+	default:
+		printk(KERN_DEBUG "capidrv-%d: capidrv_ioctl(%ld) called ??\n",
+				card->contrnr, c->arg);
+		return -EINVAL;
+	}
+	return -EINVAL;
+}
+
+/*
+ * Handle leased lines (CAPI-Bundling)
+ */
+
+struct internal_bchannelinfo {
+   unsigned short channelalloc;
+   unsigned short operation;
+   unsigned char  cmask[31];
+};
+
+static int decodeFVteln(char *teln, unsigned long *bmaskp, int *activep)
+{
+	unsigned long bmask = 0;
+	int active = !0;
+	char *s;
+	int i;
+
+	if (strncmp(teln, "FV:", 3) != 0)
+		return 1;
+	s = teln + 3;
+	while (*s && *s == ' ') s++;
+	if (!*s) return -2;
+	if (*s == 'p' || *s == 'P') {
+		active = 0;
+		s++;
+	}
+	if (*s == 'a' || *s == 'A') {
+		active = !0;
+		s++;
+	}
+	while (*s) {
+		int digit1 = 0;
+		int digit2 = 0;
+		if (!isdigit(*s)) return -3;
+		while (isdigit(*s)) { digit1 = digit1*10 + (*s - '0'); s++; }
+		if (digit1 <= 0 && digit1 > 30) return -4;
+		if (*s == 0 || *s == ',' || *s == ' ') {
+			bmask |= (1 << digit1);
+			digit1 = 0;
+			if (*s) s++;
+			continue;
+		}
+		if (*s != '-') return -5;
+		s++;
+		if (!isdigit(*s)) return -3;
+		while (isdigit(*s)) { digit2 = digit2*10 + (*s - '0'); s++; }
+		if (digit2 <= 0 && digit2 > 30) return -4;
+		if (*s == 0 || *s == ',' || *s == ' ') {
+			if (digit1 > digit2)
+				for (i = digit2; i <= digit1 ; i++)
+					bmask |= (1 << i);
+			else 
+				for (i = digit1; i <= digit2 ; i++)
+					bmask |= (1 << i);
+			digit1 = digit2 = 0;
+			if (*s) s++;
+			continue;
+		}
+		return -6;
+	}
+	if (activep) *activep = active;
+	if (bmaskp) *bmaskp = bmask;
+	return 0;
+}
+
+static int FVteln2capi20(char *teln, u8 AdditionalInfo[1+2+2+31])
+{
+	unsigned long bmask;
+	int active;
+	int rc, i;
+   
+	rc = decodeFVteln(teln, &bmask, &active);
+	if (rc) return rc;
+	/* Length */
+	AdditionalInfo[0] = 2+2+31;
+        /* Channel: 3 => use channel allocation */
+        AdditionalInfo[1] = 3; AdditionalInfo[2] = 0;
+	/* Operation: 0 => DTE mode, 1 => DCE mode */
+        if (active) {
+   		AdditionalInfo[3] = 0; AdditionalInfo[4] = 0;
+   	} else {
+   		AdditionalInfo[3] = 1; AdditionalInfo[4] = 0;
+	}
+	/* Channel mask array */
+	AdditionalInfo[5] = 0; /* no D-Channel */
+	for (i=1; i <= 30; i++)
+		AdditionalInfo[5+i] = (bmask & (1 << i)) ? 0xff : 0;
+	return 0;
+}
+
+static int capidrv_command(isdn_ctrl * c, capidrv_contr * card)
+{
+	isdn_ctrl cmd;
+	struct capidrv_bchan *bchan;
+	struct capidrv_plci *plcip;
+	u8 AdditionalInfo[1+2+2+31];
+        int rc, isleasedline = 0;
+
+	if (c->command == ISDN_CMD_IOCTL)
+		return capidrv_ioctl(c, card);
+
+	switch (c->command) {
+	case ISDN_CMD_DIAL:{
+			u8 calling[ISDN_MSNLEN + 3];
+			u8 called[ISDN_MSNLEN + 2];
+
+			if (debugmode)
+				printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_DIAL(ch=%ld,\"%s,%d,%d,%s\")\n",
+					card->contrnr,
+					c->arg,
+				        c->parm.setup.phone,
+				        c->parm.setup.si1,
+				        c->parm.setup.si2,
+				        c->parm.setup.eazmsn);
+
+			bchan = &card->bchans[c->arg % card->nbchan];
+
+			if (bchan->plcip) {
+				printk(KERN_ERR "capidrv-%d: dail ch=%ld,\"%s,%d,%d,%s\" in use (plci=0x%x)\n",
+					card->contrnr,
+			        	c->arg, 
+				        c->parm.setup.phone,
+				        c->parm.setup.si1,
+				        c->parm.setup.si2,
+				        c->parm.setup.eazmsn,
+				        bchan->plcip->plci);
+				return 0;
+			}
+			bchan->si1 = c->parm.setup.si1;
+			bchan->si2 = c->parm.setup.si2;
+
+			strncpy(bchan->num, c->parm.setup.phone, sizeof(bchan->num));
+			strncpy(bchan->mynum, c->parm.setup.eazmsn, sizeof(bchan->mynum));
+                        rc = FVteln2capi20(bchan->num, AdditionalInfo);
+			isleasedline = (rc == 0);
+			if (rc < 0)
+				printk(KERN_ERR "capidrv-%d: WARNING: invalid leased linedefinition \"%s\"\n", card->contrnr, bchan->num);
+
+			if (isleasedline) {
+				calling[0] = 0;
+				called[0] = 0;
+			        if (debugmode)
+					printk(KERN_DEBUG "capidrv-%d: connecting leased line\n", card->contrnr);
+			} else {
+		        	calling[0] = strlen(bchan->mynum) + 2;
+		        	calling[1] = 0;
+		     		calling[2] = 0x80;
+			   	strncpy(calling + 3, bchan->mynum, ISDN_MSNLEN);
+				called[0] = strlen(bchan->num) + 1;
+				called[1] = 0x80;
+				strncpy(called + 2, bchan->num, ISDN_MSNLEN);
+			}
+
+			capi_fill_CONNECT_REQ(&cmdcmsg,
+					      global.ap.applid,
+					      card->msgid++,
+					      card->contrnr,	/* adr */
+					  si2cip(bchan->si1, bchan->si2),	/* cipvalue */
+					      called,	/* CalledPartyNumber */
+					      calling,	/* CallingPartyNumber */
+					      NULL,	/* CalledPartySubaddress */
+					      NULL,	/* CallingPartySubaddress */
+					    b1prot(bchan->l2, bchan->l3),	/* B1protocol */
+					    b2prot(bchan->l2, bchan->l3),	/* B2protocol */
+					    b3prot(bchan->l2, bchan->l3),	/* B3protocol */
+					    b1config(bchan->l2, bchan->l3),	/* B1configuration */
+					      NULL,	/* B2configuration */
+					      NULL,	/* B3configuration */
+					      NULL,	/* BC */
+					      NULL,	/* LLC */
+					      NULL,	/* HLC */
+					      /* BChannelinformation */
+					      isleasedline ? AdditionalInfo : NULL,
+					      NULL,	/* Keypadfacility */
+					      NULL,	/* Useruserdata */
+					      NULL	/* Facilitydataarray */
+			    );
+			if ((plcip = new_plci(card, (c->arg % card->nbchan))) == 0) {
+				cmd.command = ISDN_STAT_DHUP;
+				cmd.driver = card->myid;
+				cmd.arg = (c->arg % card->nbchan);
+				card->interface.statcallb(&cmd);
+				return -1;
+			}
+			plcip->msgid = cmdcmsg.Messagenumber;
+			plcip->leasedline = isleasedline;
+			plci_change_state(card, plcip, EV_PLCI_CONNECT_REQ);
+			send_message(card, &cmdcmsg);
+			return 0;
+		}
+
+	case ISDN_CMD_ACCEPTD:
+
+		bchan = &card->bchans[c->arg % card->nbchan];
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_ACCEPTD(ch=%ld) l2=%d l3=%d\n",
+			       card->contrnr,
+			       c->arg, bchan->l2, bchan->l3);
+
+		capi_fill_CONNECT_RESP(&cmdcmsg,
+				       global.ap.applid,
+				       card->msgid++,
+				       bchan->plcip->plci,	/* adr */
+				       0,	/* Reject */
+				       b1prot(bchan->l2, bchan->l3),	/* B1protocol */
+				       b2prot(bchan->l2, bchan->l3),	/* B2protocol */
+				       b3prot(bchan->l2, bchan->l3),	/* B3protocol */
+				       b1config(bchan->l2, bchan->l3),	/* B1configuration */
+				       NULL,	/* B2configuration */
+				       NULL,	/* B3configuration */
+				       NULL,	/* ConnectedNumber */
+				       NULL,	/* ConnectedSubaddress */
+				       NULL,	/* LLC */
+				       NULL,	/* BChannelinformation */
+				       NULL,	/* Keypadfacility */
+				       NULL,	/* Useruserdata */
+				       NULL	/* Facilitydataarray */
+		);
+		capi_cmsg2message(&cmdcmsg, cmdcmsg.buf);
+		plci_change_state(card, bchan->plcip, EV_PLCI_CONNECT_RESP);
+		send_message(card, &cmdcmsg);
+		return 0;
+
+	case ISDN_CMD_ACCEPTB:
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_ACCEPTB(ch=%ld)\n",
+			       card->contrnr,
+			       c->arg);
+		return -ENOSYS;
+
+	case ISDN_CMD_HANGUP:
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv-%d: ISDN_CMD_HANGUP(ch=%ld)\n",
+			       card->contrnr,
+			       c->arg);
+		bchan = &card->bchans[c->arg % card->nbchan];
+
+		if (bchan->disconnecting) {
+			if (debugmode)
+				printk(KERN_DEBUG "capidrv-%d: chan %ld already disconnecting ...\n",
+				       card->contrnr,
+				       c->arg);
+			return 0;
+		}
+		if (bchan->nccip) {
+			bchan->disconnecting = 1;
+			capi_fill_DISCONNECT_B3_REQ(&cmdcmsg,
+						    global.ap.applid,
+						    card->msgid++,
+						    bchan->nccip->ncci,
+						    NULL	/* NCPI */
+			);
+			ncci_change_state(card, bchan->nccip, EV_NCCI_DISCONNECT_B3_REQ);
+			send_message(card, &cmdcmsg);
+			return 0;
+		} else if (bchan->plcip) {
+			if (bchan->plcip->state == ST_PLCI_INCOMING) {
+				/*
+				 * just ignore, we a called from
+				 * isdn_status_callback(),
+				 * which will return 0 or 2, this is handled
+				 * by the CONNECT_IND handler
+				 */
+				bchan->disconnecting = 1;
+				return 0;
+			} else if (bchan->plcip->plci) {
+				bchan->disconnecting = 1;
+				capi_fill_DISCONNECT_REQ(&cmdcmsg,
+							 global.ap.applid,
+							 card->msgid++,
+						      bchan->plcip->plci,
+							 NULL,	/* BChannelinformation */
+							 NULL,	/* Keypadfacility */
+							 NULL,	/* Useruserdata */
+							 NULL	/* Facilitydataarray */
+				);
+				plci_change_state(card, bchan->plcip, EV_PLCI_DISCONNECT_REQ);
+				send_message(card, &cmdcmsg);
+				return 0;
+			} else {
+				printk(KERN_ERR "capidrv-%d: chan %ld disconnect request while waiting for CONNECT_CONF\n",
+				       card->contrnr,
+				       c->arg);
+				return -EINVAL;
+			}
+		}
+		printk(KERN_ERR "capidrv-%d: chan %ld disconnect request on free channel\n",
+				       card->contrnr,
+				       c->arg);
+		return -EINVAL;
+/* ready */
+
+	case ISDN_CMD_SETL2:
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv-%d: set L2 on chan %ld to %ld\n",
+			       card->contrnr,
+			       (c->arg & 0xff), (c->arg >> 8));
+		bchan = &card->bchans[(c->arg & 0xff) % card->nbchan];
+		bchan->l2 = (c->arg >> 8);
+		return 0;
+
+	case ISDN_CMD_SETL3:
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv-%d: set L3 on chan %ld to %ld\n",
+			       card->contrnr,
+			       (c->arg & 0xff), (c->arg >> 8));
+		bchan = &card->bchans[(c->arg & 0xff) % card->nbchan];
+		bchan->l3 = (c->arg >> 8);
+		return 0;
+
+	case ISDN_CMD_SETEAZ:
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv-%d: set EAZ \"%s\" on chan %ld\n",
+			       card->contrnr,
+			       c->parm.num, c->arg);
+		bchan = &card->bchans[c->arg % card->nbchan];
+		strncpy(bchan->msn, c->parm.num, ISDN_MSNLEN);
+		return 0;
+
+	case ISDN_CMD_CLREAZ:
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv-%d: clearing EAZ on chan %ld\n",
+					card->contrnr, c->arg);
+		bchan = &card->bchans[c->arg % card->nbchan];
+		bchan->msn[0] = 0;
+		return 0;
+
+	default:
+		printk(KERN_ERR "capidrv-%d: ISDN_CMD_%d, Huh?\n",
+					card->contrnr, c->command);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int if_command(isdn_ctrl * c)
+{
+	capidrv_contr *card = findcontrbydriverid(c->driver);
+
+	if (card)
+		return capidrv_command(c, card);
+
+	printk(KERN_ERR
+	     "capidrv: if_command %d called with invalid driverId %d!\n",
+						c->command, c->driver);
+	return -ENODEV;
+}
+
+static _cmsg sendcmsg;
+
+static int if_sendbuf(int id, int channel, int doack, struct sk_buff *skb)
+{
+	capidrv_contr *card = findcontrbydriverid(id);
+	capidrv_bchan *bchan;
+	capidrv_ncci *nccip;
+	int len = skb->len;
+	int msglen;
+	u16 errcode;
+	u16 datahandle;
+
+	if (!card) {
+		printk(KERN_ERR "capidrv: if_sendbuf called with invalid driverId %d!\n",
+		       id);
+		return 0;
+	}
+	if (debugmode > 4)
+		printk(KERN_DEBUG "capidrv-%d: sendbuf len=%d skb=%p doack=%d\n",
+					card->contrnr, len, skb, doack);
+	bchan = &card->bchans[channel % card->nbchan];
+	nccip = bchan->nccip;
+	if (!nccip || nccip->state != ST_NCCI_ACTIVE) {
+		printk(KERN_ERR "capidrv-%d: if_sendbuf: %s:%d: chan not up!\n",
+		       card->contrnr, card->name, channel);
+		return 0;
+	}
+	datahandle = nccip->datahandle;
+	capi_fill_DATA_B3_REQ(&sendcmsg, global.ap.applid, card->msgid++,
+			      nccip->ncci,	/* adr */
+			      (u32) skb->data,	/* Data */
+			      skb->len,		/* DataLength */
+			      datahandle,	/* DataHandle */
+			      0	/* Flags */
+	    );
+
+	if (capidrv_add_ack(nccip, datahandle, doack ? (int)skb->len : -1) < 0)
+	   return 0;
+
+	capi_cmsg2message(&sendcmsg, sendcmsg.buf);
+	msglen = CAPIMSG_LEN(sendcmsg.buf);
+	if (skb_headroom(skb) < msglen) {
+		struct sk_buff *nskb = skb_realloc_headroom(skb, msglen);
+		if (!nskb) {
+			printk(KERN_ERR "capidrv-%d: if_sendbuf: no memory\n",
+				card->contrnr);
+		        (void)capidrv_del_ack(nccip, datahandle);
+			return 0;
+		}
+		printk(KERN_DEBUG "capidrv-%d: only %d bytes headroom, need %d\n",
+		       card->contrnr, skb_headroom(skb), msglen);
+		memcpy(skb_push(nskb, msglen), sendcmsg.buf, msglen);
+		errcode = capi20_put_message(&global.ap, nskb);
+		if (errcode == CAPI_NOERROR) {
+			dev_kfree_skb(skb);
+			nccip->datahandle++;
+			return len;
+		}
+		if (debugmode > 3)
+			printk(KERN_DEBUG "capidrv-%d: sendbuf putmsg ret(%x) - %s\n",
+				card->contrnr, errcode, capi_info2str(errcode));
+	        (void)capidrv_del_ack(nccip, datahandle);
+	        dev_kfree_skb(nskb);
+		return errcode == CAPI_SENDQUEUEFULL ? 0 : -1;
+	} else {
+		memcpy(skb_push(skb, msglen), sendcmsg.buf, msglen);
+		errcode = capi20_put_message(&global.ap, skb);
+		if (errcode == CAPI_NOERROR) {
+			nccip->datahandle++;
+			return len;
+		}
+		if (debugmode > 3)
+			printk(KERN_DEBUG "capidrv-%d: sendbuf putmsg ret(%x) - %s\n",
+				card->contrnr, errcode, capi_info2str(errcode));
+		skb_pull(skb, msglen);
+	        (void)capidrv_del_ack(nccip, datahandle);
+		return errcode == CAPI_SENDQUEUEFULL ? 0 : -1;
+	}
+}
+
+static int if_readstat(u8 __user *buf, int len, int id, int channel)
+{
+	capidrv_contr *card = findcontrbydriverid(id);
+	int count;
+	u8 __user *p;
+
+	if (!card) {
+		printk(KERN_ERR "capidrv: if_readstat called with invalid driverId %d!\n",
+		       id);
+		return -ENODEV;
+	}
+
+	for (p=buf, count=0; count < len; p++, count++) {
+		put_user(*card->q931_read++, p);
+	        if (card->q931_read > card->q931_end)
+	                card->q931_read = card->q931_buf;
+	}
+	return count;
+
+}
+
+static void enable_dchannel_trace(capidrv_contr *card)
+{
+        u8 manufacturer[CAPI_MANUFACTURER_LEN];
+        capi_version version;
+	u16 contr = card->contrnr;
+	u16 errcode;
+	u16 avmversion[3];
+
+        errcode = capi20_get_manufacturer(contr, manufacturer);
+        if (errcode != CAPI_NOERROR) {
+	   printk(KERN_ERR "%s: can't get manufacturer (0x%x)\n",
+			card->name, errcode);
+	   return;
+	}
+	if (strstr(manufacturer, "AVM") == 0) {
+	   printk(KERN_ERR "%s: not from AVM, no d-channel trace possible (%s)\n",
+			card->name, manufacturer);
+	   return;
+	}
+        errcode = capi20_get_version(contr, &version);
+        if (errcode != CAPI_NOERROR) {
+	   printk(KERN_ERR "%s: can't get version (0x%x)\n",
+			card->name, errcode);
+	   return;
+	}
+	avmversion[0] = (version.majormanuversion >> 4) & 0x0f;
+	avmversion[1] = (version.majormanuversion << 4) & 0xf0;
+	avmversion[1] |= (version.minormanuversion >> 4) & 0x0f;
+	avmversion[2] |= version.minormanuversion & 0x0f;
+
+        if (avmversion[0] > 3 || (avmversion[0] == 3 && avmversion[1] > 5)) {
+		printk(KERN_INFO "%s: D2 trace enabled\n", card->name);
+		capi_fill_MANUFACTURER_REQ(&cmdcmsg, global.ap.applid,
+					   card->msgid++,
+					   contr,
+					   0x214D5641,  /* ManuID */
+					   0,           /* Class */
+					   1,           /* Function */
+					   (_cstruct)"\004\200\014\000\000");
+	} else {
+		printk(KERN_INFO "%s: D3 trace enabled\n", card->name);
+		capi_fill_MANUFACTURER_REQ(&cmdcmsg, global.ap.applid,
+					   card->msgid++,
+					   contr,
+					   0x214D5641,  /* ManuID */
+					   0,           /* Class */
+					   1,           /* Function */
+					   (_cstruct)"\004\002\003\000\000");
+	}
+	send_message(card, &cmdcmsg);
+}
+
+
+static void send_listen(capidrv_contr *card)
+{
+	capi_fill_LISTEN_REQ(&cmdcmsg, global.ap.applid,
+			     card->msgid++,
+			     card->contrnr, /* controller */
+			     1 << 6,	/* Infomask */
+			     card->cipmask,
+			     card->cipmask2,
+			     NULL, NULL);
+	send_message(card, &cmdcmsg);
+	listen_change_state(card, EV_LISTEN_REQ);
+}
+
+static void listentimerfunc(unsigned long x)
+{
+	capidrv_contr *card = (capidrv_contr *)x;
+	if (card->state != ST_LISTEN_NONE && card->state != ST_LISTEN_ACTIVE)
+		printk(KERN_ERR "%s: controller dead ??\n", card->name);
+        send_listen(card);
+	mod_timer(&card->listentimer, jiffies + 60*HZ);
+}
+
+
+static int capidrv_addcontr(u16 contr, struct capi_profile *profp)
+{
+	capidrv_contr *card;
+	unsigned long flags;
+	isdn_ctrl cmd;
+	char id[20];
+	int i;
+
+	sprintf(id, "capidrv-%d", contr);
+	if (!try_module_get(THIS_MODULE)) {
+		printk(KERN_WARNING "capidrv: (%s) Could not reserve module\n", id);
+		return -1;
+	}
+	if (!(card = (capidrv_contr *) kmalloc(sizeof(capidrv_contr), GFP_ATOMIC))) {
+		printk(KERN_WARNING
+		 "capidrv: (%s) Could not allocate contr-struct.\n", id);
+		return -1;
+	}
+	memset(card, 0, sizeof(capidrv_contr));
+	card->owner = THIS_MODULE;
+	init_timer(&card->listentimer);
+	strcpy(card->name, id);
+	card->contrnr = contr;
+	card->nbchan = profp->nbchannel;
+	card->bchans = (capidrv_bchan *) kmalloc(sizeof(capidrv_bchan) * card->nbchan, GFP_ATOMIC);
+	if (!card->bchans) {
+		printk(KERN_WARNING
+		"capidrv: (%s) Could not allocate bchan-structs.\n", id);
+		module_put(card->owner);
+		kfree(card);
+		return -1;
+	}
+	card->interface.channels = profp->nbchannel;
+	card->interface.maxbufsize = 2048;
+	card->interface.command = if_command;
+	card->interface.writebuf_skb = if_sendbuf;
+	card->interface.writecmd = NULL;
+	card->interface.readstat = if_readstat;
+	card->interface.features = ISDN_FEATURE_L2_HDLC |
+	    			   ISDN_FEATURE_L2_TRANS |
+	    			   ISDN_FEATURE_L3_TRANS |
+				   ISDN_FEATURE_P_UNKNOWN |
+				   ISDN_FEATURE_L2_X75I |
+				   ISDN_FEATURE_L2_X75UI |
+				   ISDN_FEATURE_L2_X75BUI;
+	if (profp->support1 & (1<<2))
+		card->interface.features |= ISDN_FEATURE_L2_V11096 |
+	    				    ISDN_FEATURE_L2_V11019 |
+	    				    ISDN_FEATURE_L2_V11038;
+	if (profp->support1 & (1<<8))
+		card->interface.features |= ISDN_FEATURE_L2_MODEM;
+	card->interface.hl_hdrlen = 22; /* len of DATA_B3_REQ */
+	strncpy(card->interface.id, id, sizeof(card->interface.id) - 1);
+
+
+	card->q931_read = card->q931_buf;
+	card->q931_write = card->q931_buf;
+	card->q931_end = card->q931_buf + sizeof(card->q931_buf) - 1;
+
+	if (!register_isdn(&card->interface)) {
+		printk(KERN_ERR "capidrv: Unable to register contr %s\n", id);
+		kfree(card->bchans);
+		module_put(card->owner);
+		kfree(card);
+		return -1;
+	}
+	card->myid = card->interface.channels;
+	memset(card->bchans, 0, sizeof(capidrv_bchan) * card->nbchan);
+	for (i = 0; i < card->nbchan; i++) {
+		card->bchans[i].contr = card;
+	}
+
+	spin_lock_irqsave(&global_lock, flags);
+	card->next = global.contr_list;
+	global.contr_list = card;
+	global.ncontr++;
+	spin_unlock_irqrestore(&global_lock, flags);
+
+	cmd.command = ISDN_STAT_RUN;
+	cmd.driver = card->myid;
+	card->interface.statcallb(&cmd);
+
+	card->cipmask = 0x1FFF03FF;	/* any */
+	card->cipmask2 = 0;
+
+	card->listentimer.data = (unsigned long)card;
+	card->listentimer.function = listentimerfunc;
+	send_listen(card);
+	mod_timer(&card->listentimer, jiffies + 60*HZ);
+
+	printk(KERN_INFO "%s: now up (%d B channels)\n",
+		card->name, card->nbchan);
+
+	enable_dchannel_trace(card);
+
+	return 0;
+}
+
+static int capidrv_delcontr(u16 contr)
+{
+	capidrv_contr **pp, *card;
+	unsigned long flags;
+	isdn_ctrl cmd;
+
+	spin_lock_irqsave(&global_lock, flags);
+	for (card = global.contr_list; card; card = card->next) {
+		if (card->contrnr == contr)
+			break;
+	}
+	if (!card) {
+		spin_unlock_irqrestore(&global_lock, flags);
+		printk(KERN_ERR "capidrv: delcontr: no contr %u\n", contr);
+		return -1;
+	}
+	#warning FIXME: maybe a race condition the card should be removed here from global list /kkeil
+	spin_unlock_irqrestore(&global_lock, flags);
+
+	del_timer(&card->listentimer);
+
+	if (debugmode)
+		printk(KERN_DEBUG "capidrv-%d: id=%d unloading\n",
+					card->contrnr, card->myid);
+
+	cmd.command = ISDN_STAT_STOP;
+	cmd.driver = card->myid;
+	card->interface.statcallb(&cmd);
+
+	while (card->nbchan) {
+
+		cmd.command = ISDN_STAT_DISCH;
+		cmd.driver = card->myid;
+		cmd.arg = card->nbchan-1;
+	        cmd.parm.num[0] = 0;
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv-%d: id=%d disable chan=%ld\n",
+					card->contrnr, card->myid, cmd.arg);
+		card->interface.statcallb(&cmd);
+
+		if (card->bchans[card->nbchan-1].nccip)
+			free_ncci(card, card->bchans[card->nbchan-1].nccip);
+		if (card->bchans[card->nbchan-1].plcip)
+			free_plci(card, card->bchans[card->nbchan-1].plcip);
+		if (card->plci_list)
+			printk(KERN_ERR "capidrv: bug in free_plci()\n");
+		card->nbchan--;
+	}
+	kfree(card->bchans);
+	card->bchans = NULL;
+
+	if (debugmode)
+		printk(KERN_DEBUG "capidrv-%d: id=%d isdn unload\n",
+					card->contrnr, card->myid);
+
+	cmd.command = ISDN_STAT_UNLOAD;
+	cmd.driver = card->myid;
+	card->interface.statcallb(&cmd);
+
+	if (debugmode)
+		printk(KERN_DEBUG "capidrv-%d: id=%d remove contr from list\n",
+					card->contrnr, card->myid);
+
+	spin_lock_irqsave(&global_lock, flags);
+	for (pp = &global.contr_list; *pp; pp = &(*pp)->next) {
+		if (*pp == card) {
+			*pp = (*pp)->next;
+			card->next = NULL;
+			global.ncontr--;
+			break;
+		}
+	}
+	spin_unlock_irqrestore(&global_lock, flags);
+
+	module_put(card->owner);
+	printk(KERN_INFO "%s: now down.\n", card->name);
+	kfree(card);
+	return 0;
+}
+
+
+static void lower_callback(unsigned int cmd, u32 contr, void *data)
+{
+
+	switch (cmd) {
+	case KCI_CONTRUP:
+		printk(KERN_INFO "capidrv: controller %hu up\n", contr);
+		(void) capidrv_addcontr(contr, (capi_profile *) data);
+		break;
+	case KCI_CONTRDOWN:
+		printk(KERN_INFO "capidrv: controller %hu down\n", contr);
+		(void) capidrv_delcontr(contr);
+		break;
+	}
+}
+
+/*
+ * /proc/capi/capidrv:
+ * nrecvctlpkt nrecvdatapkt nsendctlpkt nsenddatapkt
+ */
+static int proc_capidrv_read_proc(char *page, char **start, off_t off,
+                                       int count, int *eof, void *data)
+{
+	int len = 0;
+
+	len += sprintf(page+len, "%lu %lu %lu %lu\n",
+			global.ap.nrecvctlpkt,
+			global.ap.nrecvdatapkt,
+			global.ap.nsentctlpkt,
+			global.ap.nsentdatapkt);
+	if (off+count >= len)
+	   *eof = 1;
+	if (len < off)
+           return 0;
+	*start = page + off;
+	return ((count < len-off) ? count : len-off);
+}
+
+static struct procfsentries {
+  char *name;
+  mode_t mode;
+  int (*read_proc)(char *page, char **start, off_t off,
+                                       int count, int *eof, void *data);
+  struct proc_dir_entry *procent;
+} procfsentries[] = {
+   /* { "capi",		  S_IFDIR, 0 }, */
+   { "capi/capidrv", 	  0	 , proc_capidrv_read_proc },
+};
+
+static void __init proc_init(void)
+{
+    int nelem = sizeof(procfsentries)/sizeof(procfsentries[0]);
+    int i;
+
+    for (i=0; i < nelem; i++) {
+        struct procfsentries *p = procfsentries + i;
+	p->procent = create_proc_entry(p->name, p->mode, NULL);
+	if (p->procent) p->procent->read_proc = p->read_proc;
+    }
+}
+
+static void __exit proc_exit(void)
+{
+    int nelem = sizeof(procfsentries)/sizeof(procfsentries[0]);
+    int i;
+
+    for (i=nelem-1; i >= 0; i--) {
+        struct procfsentries *p = procfsentries + i;
+	if (p->procent) {
+	   remove_proc_entry(p->name, NULL);
+	   p->procent = NULL;
+	}
+    }
+}
+
+static int __init capidrv_init(void)
+{
+	capi_profile profile;
+	char rev[32];
+	char *p;
+	u32 ncontr, contr;
+	u16 errcode;
+
+	if ((p = strchr(revision, ':')) != 0 && p[1]) {
+		strncpy(rev, p + 2, sizeof(rev));
+		rev[sizeof(rev)-1] = 0;
+		if ((p = strchr(rev, '$')) != 0 && p > rev)
+		   *(p-1) = 0;
+	} else
+		strcpy(rev, "1.0");
+
+	global.ap.rparam.level3cnt = -2;  /* number of bchannels twice */
+	global.ap.rparam.datablkcnt = 16;
+	global.ap.rparam.datablklen = 2048;
+
+	global.ap.recv_message = capidrv_recv_message;
+	errcode = capi20_register(&global.ap);
+	if (errcode) {
+		return -EIO;
+	}
+
+	capi20_set_callback(&global.ap, lower_callback);
+
+	errcode = capi20_get_profile(0, &profile);
+	if (errcode != CAPI_NOERROR) {
+		capi20_release(&global.ap);
+		return -EIO;
+	}
+
+	ncontr = profile.ncontroller;
+	for (contr = 1; contr <= ncontr; contr++) {
+		errcode = capi20_get_profile(contr, &profile);
+		if (errcode != CAPI_NOERROR)
+			continue;
+		(void) capidrv_addcontr(contr, &profile);
+	}
+	proc_init();
+
+	printk(KERN_NOTICE "capidrv: Rev %s: loaded\n", rev);
+	return 0;
+}
+
+static void __exit capidrv_exit(void)
+{
+	char rev[10];
+	char *p;
+
+	if ((p = strchr(revision, ':')) != 0) {
+		strcpy(rev, p + 1);
+		p = strchr(rev, '$');
+		*p = 0;
+	} else {
+		strcpy(rev, " ??? ");
+	}
+
+	capi20_release(&global.ap);
+
+	proc_exit();
+
+	printk(KERN_NOTICE "capidrv: Rev%s: unloaded\n", rev);
+}
+
+module_init(capidrv_init);
+module_exit(capidrv_exit);
diff --git a/drivers/isdn/capi/capidrv.h b/drivers/isdn/capi/capidrv.h
new file mode 100644
index 000000000000..1e698e1e269f
--- /dev/null
+++ b/drivers/isdn/capi/capidrv.h
@@ -0,0 +1,140 @@
+/* $Id: capidrv.h,v 1.2.8.2 2001/09/23 22:24:33 kai Exp $
+ *
+ * ISDN4Linux Driver, using capi20 interface (kernelcapi)
+ *
+ * Copyright 1997 by Carsten Paeth <calle@calle.de>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#ifndef __CAPIDRV_H__
+#define __CAPIDRV_H__
+
+/*
+ * LISTEN state machine
+ */
+#define ST_LISTEN_NONE			0	/* L-0 */
+#define ST_LISTEN_WAIT_CONF		1	/* L-0.1 */
+#define ST_LISTEN_ACTIVE		2	/* L-1 */
+#define ST_LISTEN_ACTIVE_WAIT_CONF	3	/* L-1.1 */
+
+
+#define EV_LISTEN_REQ			1	/* L-0 -> L-0.1
+						   L-1 -> L-1.1 */
+#define EV_LISTEN_CONF_ERROR		2	/* L-0.1 -> L-0
+						   L-1.1 -> L-1 */
+#define EV_LISTEN_CONF_EMPTY		3	/* L-0.1 -> L-0
+						   L-1.1 -> L-0 */
+#define EV_LISTEN_CONF_OK		4	/* L-0.1 -> L-1
+						   L-1.1 -> L.1 */
+
+/*
+ * per plci state machine
+ */
+#define ST_PLCI_NONE			0	/* P-0 */
+#define ST_PLCI_OUTGOING 		1	/* P-0.1 */
+#define ST_PLCI_ALLOCATED		2	/* P-1 */
+#define ST_PLCI_ACTIVE			3	/* P-ACT */
+#define ST_PLCI_INCOMING		4	/* P-2 */
+#define ST_PLCI_FACILITY_IND		5	/* P-3 */
+#define ST_PLCI_ACCEPTING		6	/* P-4 */
+#define ST_PLCI_DISCONNECTING		7	/* P-5 */
+#define ST_PLCI_DISCONNECTED		8	/* P-6 */
+#define ST_PLCI_RESUMEING		9	/* P-0.Res */
+#define ST_PLCI_RESUME			10	/* P-Res */
+#define ST_PLCI_HELD			11	/* P-HELD */
+
+#define EV_PLCI_CONNECT_REQ		1	/* P-0 -> P-0.1
+                                                 */
+#define EV_PLCI_CONNECT_CONF_ERROR	2	/* P-0.1 -> P-0
+                                                 */
+#define EV_PLCI_CONNECT_CONF_OK		3	/* P-0.1 -> P-1
+                                                 */
+#define EV_PLCI_FACILITY_IND_UP		4	/* P-0 -> P-1
+                                                 */
+#define EV_PLCI_CONNECT_IND		5	/* P-0 -> P-2
+                                                 */
+#define EV_PLCI_CONNECT_ACTIVE_IND	6	/* P-1 -> P-ACT
+                                                 */
+#define EV_PLCI_CONNECT_REJECT		7	/* P-2 -> P-5
+						   P-3 -> P-5
+						 */
+#define EV_PLCI_DISCONNECT_REQ		8	/* P-1 -> P-5
+						   P-2 -> P-5
+						   P-3 -> P-5
+						   P-4 -> P-5
+						   P-ACT -> P-5
+						   P-Res -> P-5 (*)
+						   P-HELD -> P-5 (*)
+						   */
+#define EV_PLCI_DISCONNECT_IND		9	/* P-1 -> P-6
+						   P-2 -> P-6
+						   P-3 -> P-6
+						   P-4 -> P-6
+						   P-5 -> P-6
+						   P-ACT -> P-6
+						   P-Res -> P-6 (*)
+						   P-HELD -> P-6 (*)
+						   */
+#define EV_PLCI_FACILITY_IND_DOWN	10	/* P-0.1 -> P-5
+						   P-1 -> P-5
+						   P-ACT -> P-5
+						   P-2 -> P-5
+						   P-3 -> P-5
+						   P-4 -> P-5
+						   */
+#define EV_PLCI_DISCONNECT_RESP		11	/* P-6 -> P-0
+                                                   */
+#define EV_PLCI_CONNECT_RESP		12	/* P-6 -> P-0
+                                                   */
+
+#define EV_PLCI_RESUME_REQ		13	/* P-0 -> P-0.Res
+                                                 */
+#define EV_PLCI_RESUME_CONF_OK		14	/* P-0.Res -> P-Res
+                                                 */
+#define EV_PLCI_RESUME_CONF_ERROR	15	/* P-0.Res -> P-0
+                                                 */
+#define EV_PLCI_RESUME_IND		16	/* P-Res -> P-ACT
+                                                 */
+#define EV_PLCI_HOLD_IND		17	/* P-ACT -> P-HELD
+                                                 */
+#define EV_PLCI_RETRIEVE_IND		18	/* P-HELD -> P-ACT
+                                                 */
+#define EV_PLCI_SUSPEND_IND		19	/* P-ACT -> P-5
+                                                 */
+#define EV_PLCI_CD_IND			20	/* P-2 -> P-5
+                                                 */
+
+/*
+ * per ncci state machine
+ */
+#define ST_NCCI_PREVIOUS			-1
+#define ST_NCCI_NONE				0	/* N-0 */
+#define ST_NCCI_OUTGOING			1	/* N-0.1 */
+#define ST_NCCI_INCOMING			2	/* N-1 */
+#define ST_NCCI_ALLOCATED			3	/* N-2 */
+#define ST_NCCI_ACTIVE				4	/* N-ACT */
+#define ST_NCCI_RESETING			5	/* N-3 */
+#define ST_NCCI_DISCONNECTING			6	/* N-4 */
+#define ST_NCCI_DISCONNECTED			7	/* N-5 */
+
+#define EV_NCCI_CONNECT_B3_REQ			1	/* N-0 -> N-0.1 */
+#define EV_NCCI_CONNECT_B3_IND			2	/* N-0 -> N.1 */
+#define EV_NCCI_CONNECT_B3_CONF_OK		3	/* N-0.1 -> N.2 */
+#define EV_NCCI_CONNECT_B3_CONF_ERROR		4	/* N-0.1 -> N.0 */
+#define EV_NCCI_CONNECT_B3_REJECT		5	/* N-1 -> N-4 */
+#define EV_NCCI_CONNECT_B3_RESP			6	/* N-1 -> N-2 */
+#define EV_NCCI_CONNECT_B3_ACTIVE_IND		7	/* N-2 -> N-ACT */
+#define EV_NCCI_RESET_B3_REQ			8	/* N-ACT -> N-3 */
+#define EV_NCCI_RESET_B3_IND			9	/* N-3 -> N-ACT */
+#define EV_NCCI_DISCONNECT_B3_IND		10	/* N-4 -> N.5 */
+#define EV_NCCI_DISCONNECT_B3_CONF_ERROR	11	/* N-4 -> previous */
+#define EV_NCCI_DISCONNECT_B3_REQ		12	/* N-1 -> N-4
+							   N-2 -> N-4
+							   N-3 -> N-4
+							   N-ACT -> N-4 */
+#define EV_NCCI_DISCONNECT_B3_RESP		13	/* N-5 -> N-0 */
+
+#endif				/* __CAPIDRV_H__ */
diff --git a/drivers/isdn/capi/capifs.c b/drivers/isdn/capi/capifs.c
new file mode 100644
index 000000000000..f8570fd9d2ab
--- /dev/null
+++ b/drivers/isdn/capi/capifs.c
@@ -0,0 +1,212 @@
+/* $Id: capifs.c,v 1.1.2.3 2004/01/16 21:09:26 keil Exp $
+ * 
+ * Copyright 2000 by Carsten Paeth <calle@calle.de>
+ *
+ * Heavily based on devpts filesystem from H. Peter Anvin
+ * 
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/fs.h>
+#include <linux/mount.h>
+#include <linux/namei.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/ctype.h>
+
+MODULE_DESCRIPTION("CAPI4Linux: /dev/capi/ filesystem");
+MODULE_AUTHOR("Carsten Paeth");
+MODULE_LICENSE("GPL");
+
+/* ------------------------------------------------------------------ */
+
+static char *revision = "$Revision: 1.1.2.3 $";
+
+/* ------------------------------------------------------------------ */
+
+#define CAPIFS_SUPER_MAGIC (('C'<<8)|'N')
+
+static struct vfsmount *capifs_mnt;
+static struct dentry *capifs_root;
+
+static struct {
+	int setuid;
+	int setgid;
+	uid_t   uid;
+	gid_t   gid;
+	umode_t mode;
+} config = {.mode = 0600};
+
+/* ------------------------------------------------------------------ */
+
+static int capifs_remount(struct super_block *s, int *flags, char *data)
+{
+	int setuid = 0;
+	int setgid = 0;
+	uid_t uid = 0;
+	gid_t gid = 0;
+	umode_t mode = 0600;
+	char *this_char;
+
+	this_char = NULL;
+	while ((this_char = strsep(&data, ",")) != NULL) {
+		int n;
+		char dummy;
+		if (!*this_char)
+			continue;
+		if (sscanf(this_char, "uid=%i%c", &n, &dummy) == 1) {
+			setuid = 1;
+			uid = n;
+		} else if (sscanf(this_char, "gid=%i%c", &n, &dummy) == 1) {
+			setgid = 1;
+			gid = n;
+		} else if (sscanf(this_char, "mode=%o%c", &n, &dummy) == 1)
+			mode = n & ~S_IFMT;
+		else {
+			printk("capifs: called with bogus options\n");
+			return -EINVAL;
+		}
+	}
+	config.setuid  = setuid;
+	config.setgid  = setgid;
+	config.uid     = uid;
+	config.gid     = gid;
+	config.mode    = mode;
+	return 0;
+}
+
+static struct super_operations capifs_sops =
+{
+	.statfs		= simple_statfs,
+	.remount_fs	= capifs_remount,
+};
+
+
+static int
+capifs_fill_super(struct super_block *s, void *data, int silent)
+{
+	struct inode * inode;
+
+	s->s_blocksize = 1024;
+	s->s_blocksize_bits = 10;
+	s->s_magic = CAPIFS_SUPER_MAGIC;
+	s->s_op = &capifs_sops;
+	s->s_time_gran = 1;
+
+	inode = new_inode(s);
+	if (!inode)
+		goto fail;
+	inode->i_ino = 1;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	inode->i_blocks = 0;
+	inode->i_blksize = 1024;
+	inode->i_uid = inode->i_gid = 0;
+	inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR;
+	inode->i_op = &simple_dir_inode_operations;
+	inode->i_fop = &simple_dir_operations;
+	inode->i_nlink = 2;
+
+	capifs_root = s->s_root = d_alloc_root(inode);
+	if (s->s_root)
+		return 0;
+	
+	printk("capifs: get root dentry failed\n");
+	iput(inode);
+fail:
+	return -ENOMEM;
+}
+
+static struct super_block *capifs_get_sb(struct file_system_type *fs_type,
+	int flags, const char *dev_name, void *data)
+{
+	return get_sb_single(fs_type, flags, data, capifs_fill_super);
+}
+
+static struct file_system_type capifs_fs_type = {
+	.owner		= THIS_MODULE,
+	.name		= "capifs",
+	.get_sb		= capifs_get_sb,
+	.kill_sb	= kill_anon_super,
+};
+
+static struct dentry *get_node(int num)
+{
+	char s[10];
+	struct dentry *root = capifs_root;
+	down(&root->d_inode->i_sem);
+	return lookup_one_len(s, root, sprintf(s, "%d", num));
+}
+
+void capifs_new_ncci(unsigned int number, dev_t device)
+{
+	struct dentry *dentry;
+	struct inode *inode = new_inode(capifs_mnt->mnt_sb);
+	if (!inode)
+		return;
+	inode->i_ino = number+2;
+	inode->i_blksize = 1024;
+	inode->i_uid = config.setuid ? config.uid : current->fsuid;
+	inode->i_gid = config.setgid ? config.gid : current->fsgid;
+	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+	init_special_inode(inode, S_IFCHR|config.mode, device);
+	//inode->i_op = &capifs_file_inode_operations;
+
+	dentry = get_node(number);
+	if (!IS_ERR(dentry) && !dentry->d_inode)
+		d_instantiate(dentry, inode);
+	up(&capifs_root->d_inode->i_sem);
+}
+
+void capifs_free_ncci(unsigned int number)
+{
+	struct dentry *dentry = get_node(number);
+
+	if (!IS_ERR(dentry)) {
+		struct inode *inode = dentry->d_inode;
+		if (inode) {
+			inode->i_nlink--;
+			d_delete(dentry);
+			dput(dentry);
+		}
+		dput(dentry);
+	}
+	up(&capifs_root->d_inode->i_sem);
+}
+
+static int __init capifs_init(void)
+{
+	char rev[32];
+	char *p;
+	int err;
+
+	if ((p = strchr(revision, ':')) != 0 && p[1]) {
+		strlcpy(rev, p + 2, sizeof(rev));
+		if ((p = strchr(rev, '$')) != 0 && p > rev)
+		   *(p-1) = 0;
+	} else
+		strcpy(rev, "1.0");
+
+	err = register_filesystem(&capifs_fs_type);
+	if (!err) {
+		capifs_mnt = kern_mount(&capifs_fs_type);
+		if (IS_ERR(capifs_mnt))
+			err = PTR_ERR(capifs_mnt);
+	}
+	if (!err)
+		printk(KERN_NOTICE "capifs: Rev %s\n", rev);
+	return err;
+}
+
+static void __exit capifs_exit(void)
+{
+	unregister_filesystem(&capifs_fs_type);
+	mntput(capifs_mnt);
+}
+
+EXPORT_SYMBOL(capifs_new_ncci);
+EXPORT_SYMBOL(capifs_free_ncci);
+
+module_init(capifs_init);
+module_exit(capifs_exit);
diff --git a/drivers/isdn/capi/capifs.h b/drivers/isdn/capi/capifs.h
new file mode 100644
index 000000000000..d0bd4c3c430a
--- /dev/null
+++ b/drivers/isdn/capi/capifs.h
@@ -0,0 +1,11 @@
+/* $Id: capifs.h,v 1.1.2.2 2004/01/16 21:09:26 keil Exp $
+ * 
+ * Copyright 2000 by Carsten Paeth <calle@calle.de>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+void capifs_new_ncci(unsigned int num, dev_t device);
+void capifs_free_ncci(unsigned int num);
diff --git a/drivers/isdn/capi/capilib.c b/drivers/isdn/capi/capilib.c
new file mode 100644
index 000000000000..68409d971e73
--- /dev/null
+++ b/drivers/isdn/capi/capilib.c
@@ -0,0 +1,200 @@
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/isdn/capilli.h>
+
+#define DBG(format, arg...) do { \
+printk(KERN_DEBUG "%s: " format "\n" , __FUNCTION__ , ## arg); \
+} while (0)
+
+struct capilib_msgidqueue {
+	struct capilib_msgidqueue *next;
+	u16 msgid;
+};
+
+struct capilib_ncci {
+	struct list_head list;
+	u16 applid;
+	u32 ncci;
+	u32 winsize;
+	int   nmsg;
+	struct capilib_msgidqueue *msgidqueue;
+	struct capilib_msgidqueue *msgidlast;
+	struct capilib_msgidqueue *msgidfree;
+	struct capilib_msgidqueue msgidpool[CAPI_MAXDATAWINDOW];
+};
+
+// ---------------------------------------------------------------------------
+// NCCI Handling
+
+static inline void mq_init(struct capilib_ncci * np)
+{
+	u_int i;
+	np->msgidqueue = NULL;
+	np->msgidlast = NULL;
+	np->nmsg = 0;
+	memset(np->msgidpool, 0, sizeof(np->msgidpool));
+	np->msgidfree = &np->msgidpool[0];
+	for (i = 1; i < np->winsize; i++) {
+		np->msgidpool[i].next = np->msgidfree;
+		np->msgidfree = &np->msgidpool[i];
+	}
+}
+
+static inline int mq_enqueue(struct capilib_ncci * np, u16 msgid)
+{
+	struct capilib_msgidqueue *mq;
+	if ((mq = np->msgidfree) == 0)
+		return 0;
+	np->msgidfree = mq->next;
+	mq->msgid = msgid;
+	mq->next = NULL;
+	if (np->msgidlast)
+		np->msgidlast->next = mq;
+	np->msgidlast = mq;
+	if (!np->msgidqueue)
+		np->msgidqueue = mq;
+	np->nmsg++;
+	return 1;
+}
+
+static inline int mq_dequeue(struct capilib_ncci * np, u16 msgid)
+{
+	struct capilib_msgidqueue **pp;
+	for (pp = &np->msgidqueue; *pp; pp = &(*pp)->next) {
+		if ((*pp)->msgid == msgid) {
+			struct capilib_msgidqueue *mq = *pp;
+			*pp = mq->next;
+			if (mq == np->msgidlast)
+				np->msgidlast = NULL;
+			mq->next = np->msgidfree;
+			np->msgidfree = mq;
+			np->nmsg--;
+			return 1;
+		}
+	}
+	return 0;
+}
+
+void capilib_new_ncci(struct list_head *head, u16 applid, u32 ncci, u32 winsize)
+{
+	struct capilib_ncci *np;
+
+	np = kmalloc(sizeof(*np), GFP_ATOMIC);
+	if (!np) {
+		printk(KERN_WARNING "capilib_new_ncci: no memory.\n");
+		return;
+	}
+	if (winsize > CAPI_MAXDATAWINDOW) {
+		printk(KERN_ERR "capi_new_ncci: winsize %d too big\n",
+		       winsize);
+		winsize = CAPI_MAXDATAWINDOW;
+	}
+	np->applid = applid;
+	np->ncci = ncci;
+	np->winsize = winsize;
+	mq_init(np);
+	list_add_tail(&np->list, head);
+	DBG("kcapi: appl %d ncci 0x%x up", applid, ncci);
+}
+
+EXPORT_SYMBOL(capilib_new_ncci);
+
+void capilib_free_ncci(struct list_head *head, u16 applid, u32 ncci)
+{
+	struct list_head *l;
+	struct capilib_ncci *np;
+
+	list_for_each(l, head) {
+		np = list_entry(l, struct capilib_ncci, list);
+		if (np->applid != applid)
+			continue;
+		if (np->ncci != ncci)
+			continue;
+		printk(KERN_INFO "kcapi: appl %d ncci 0x%x down\n", applid, ncci);
+		list_del(&np->list);
+		kfree(np);
+		return;
+	}
+	printk(KERN_ERR "capilib_free_ncci: ncci 0x%x not found\n", ncci);
+}
+
+EXPORT_SYMBOL(capilib_free_ncci);
+
+void capilib_release_appl(struct list_head *head, u16 applid)
+{
+	struct list_head *l, *n;
+	struct capilib_ncci *np;
+
+	list_for_each_safe(l, n, head) {
+		np = list_entry(l, struct capilib_ncci, list);
+		if (np->applid != applid)
+			continue;
+		printk(KERN_INFO "kcapi: appl %d ncci 0x%x forced down\n", applid, np->ncci);
+		list_del(&np->list);
+		kfree(np);
+	}
+}
+
+EXPORT_SYMBOL(capilib_release_appl);
+
+void capilib_release(struct list_head *head)
+{
+	struct list_head *l, *n;
+	struct capilib_ncci *np;
+
+	list_for_each_safe(l, n, head) {
+		np = list_entry(l, struct capilib_ncci, list);
+		printk(KERN_INFO "kcapi: appl %d ncci 0x%x forced down\n", np->applid, np->ncci);
+		list_del(&np->list);
+		kfree(np);
+	}
+}
+
+EXPORT_SYMBOL(capilib_release);
+
+u16 capilib_data_b3_req(struct list_head *head, u16 applid, u32 ncci, u16 msgid)
+{
+	struct list_head *l;
+	struct capilib_ncci *np;
+
+	list_for_each(l, head) {
+		np = list_entry(l, struct capilib_ncci, list);
+		if (np->applid != applid)
+			continue;
+		if (np->ncci != ncci)
+			continue;
+		
+		if (mq_enqueue(np, msgid) == 0)
+			return CAPI_SENDQUEUEFULL;
+
+		return CAPI_NOERROR;
+	}
+	printk(KERN_ERR "capilib_data_b3_req: ncci 0x%x not found\n", ncci);
+	return CAPI_NOERROR;
+}
+
+EXPORT_SYMBOL(capilib_data_b3_req);
+
+void capilib_data_b3_conf(struct list_head *head, u16 applid, u32 ncci, u16 msgid)
+{
+	struct list_head *l;
+	struct capilib_ncci *np;
+
+	list_for_each(l, head) {
+		np = list_entry(l, struct capilib_ncci, list);
+		if (np->applid != applid)
+			continue;
+		if (np->ncci != ncci)
+			continue;
+		
+		if (mq_dequeue(np, msgid) == 0) {
+			printk(KERN_ERR "kcapi: msgid %hu ncci 0x%x not on queue\n",
+			       msgid, ncci);
+		}
+		return;
+	}
+	printk(KERN_ERR "capilib_data_b3_conf: ncci 0x%x not found\n", ncci);
+}
+
+EXPORT_SYMBOL(capilib_data_b3_conf);
diff --git a/drivers/isdn/capi/capiutil.c b/drivers/isdn/capi/capiutil.c
new file mode 100644
index 000000000000..e7cf6bc286a6
--- /dev/null
+++ b/drivers/isdn/capi/capiutil.c
@@ -0,0 +1,859 @@
+/* $Id: capiutil.c,v 1.13.6.4 2001/09/23 22:24:33 kai Exp $
+ *
+ * CAPI 2.0 convert capi message to capi message struct
+ *
+ * From CAPI 2.0 Development Kit AVM 1995 (msg.c)
+ * Rewritten for Linux 1996 by Carsten Paeth <calle@calle.de>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/config.h>
+#include <linux/isdn/capiutil.h>
+
+/* from CAPI2.0 DDK AVM Berlin GmbH */
+
+#ifndef CONFIG_ISDN_DRV_AVMB1_VERBOSE_REASON
+char *capi_info2str(u16 reason)
+{
+    return "..";
+}
+#else
+char *capi_info2str(u16 reason)
+{
+    switch (reason) {
+
+/*-- informative values (corresponding message was processed) -----*/
+	case 0x0001:
+	   return "NCPI not supported by current protocol, NCPI ignored";
+	case 0x0002:
+	   return "Flags not supported by current protocol, flags ignored";
+	case 0x0003:
+	   return "Alert already sent by another application";
+
+/*-- error information concerning CAPI_REGISTER -----*/
+	case 0x1001:
+	   return "Too many applications";
+	case 0x1002:
+	   return "Logical block size too small, must be at least 128 Bytes";
+	case 0x1003:
+	   return "Buffer exceeds 64 kByte";
+	case 0x1004:
+	   return "Message buffer size too small, must be at least 1024 Bytes";
+	case 0x1005:
+	   return "Max. number of logical connections not supported";
+	case 0x1006:
+	   return "Reserved";
+	case 0x1007:
+	   return "The message could not be accepted because of an internal busy condition";
+	case 0x1008:
+	   return "OS resource error (no memory ?)";
+	case 0x1009:
+	   return "CAPI not installed";
+	case 0x100A:
+	   return "Controller does not support external equipment";
+	case 0x100B:
+	   return "Controller does only support external equipment";
+
+/*-- error information concerning message exchange functions -----*/
+	case 0x1101:
+	   return "Illegal application number";
+	case 0x1102:
+	   return "Illegal command or subcommand or message length less than 12 bytes";
+	case 0x1103:
+	   return "The message could not be accepted because of a queue full condition !! The error code does not imply that CAPI cannot receive messages directed to another controller, PLCI or NCCI";
+	case 0x1104:
+	   return "Queue is empty";
+	case 0x1105:
+	   return "Queue overflow, a message was lost !! This indicates a configuration error. The only recovery from this error is to perform a CAPI_RELEASE";
+	case 0x1106:
+	   return "Unknown notification parameter";
+	case 0x1107:
+	   return "The Message could not be accepted because of an internal busy condition";
+	case 0x1108:
+	   return "OS Resource error (no memory ?)";
+	case 0x1109:
+	   return "CAPI not installed";
+	case 0x110A:
+	   return "Controller does not support external equipment";
+	case 0x110B:
+	   return "Controller does only support external equipment";
+
+/*-- error information concerning resource / coding problems -----*/
+	case 0x2001:
+	   return "Message not supported in current state";
+	case 0x2002:
+	   return "Illegal Controller / PLCI / NCCI";
+	case 0x2003:
+	   return "Out of PLCI";
+	case 0x2004:
+	   return "Out of NCCI";
+	case 0x2005:
+	   return "Out of LISTEN";
+	case 0x2006:
+	   return "Out of FAX resources (protocol T.30)";
+	case 0x2007:
+	   return "Illegal message parameter coding";
+
+/*-- error information concerning requested services  -----*/
+	case 0x3001:
+	   return "B1 protocol not supported";
+	case 0x3002: 
+	   return "B2 protocol not supported";
+	case 0x3003: 
+	   return "B3 protocol not supported";
+	case 0x3004: 
+	   return "B1 protocol parameter not supported";
+	case 0x3005: 
+	   return "B2 protocol parameter not supported";
+	case 0x3006: 
+	   return "B3 protocol parameter not supported";
+	case 0x3007: 
+	   return "B protocol combination not supported";
+	case 0x3008: 
+	   return "NCPI not supported";
+	case 0x3009: 
+	   return "CIP Value unknown";
+	case 0x300A: 
+	   return "Flags not supported (reserved bits)";
+	case 0x300B: 
+	   return "Facility not supported";
+	case 0x300C: 
+	   return "Data length not supported by current protocol";
+	case 0x300D: 
+	   return "Reset procedure not supported by current protocol";
+
+/*-- informations about the clearing of a physical connection -----*/
+	case 0x3301: 
+	   return "Protocol error layer 1 (broken line or B-channel removed by signalling protocol)";
+	case 0x3302: 
+	   return "Protocol error layer 2";
+	case 0x3303: 
+	   return "Protocol error layer 3";
+	case 0x3304: 
+	   return "Another application got that call";
+/*-- T.30 specific reasons -----*/
+	case 0x3311: 
+	   return "Connecting not successful (remote station is no FAX G3 machine)";
+	case 0x3312: 
+	   return "Connecting not successful (training error)";
+	case 0x3313: 
+	   return "Disconnected before transfer (remote station does not support transfer mode, e.g. resolution)";
+	case 0x3314: 
+	   return "Disconnected during transfer (remote abort)";
+	case 0x3315: 
+	   return "Disconnected during transfer (remote procedure error, e.g. unsuccessful repetition of T.30 commands)";
+	case 0x3316: 
+	   return "Disconnected during transfer (local tx data underrun)";
+	case 0x3317: 
+	   return "Disconnected during transfer (local rx data overflow)";
+	case 0x3318: 
+	   return "Disconnected during transfer (local abort)";
+	case 0x3319: 
+	   return "Illegal parameter coding (e.g. SFF coding error)";
+
+/*-- disconnect causes from the network according to ETS 300 102-1/Q.931 -----*/
+	case 0x3481: return "Unallocated (unassigned) number";
+	case 0x3482: return "No route to specified transit network";
+	case 0x3483: return "No route to destination";
+	case 0x3486: return "Channel unacceptable";
+	case 0x3487: 
+	   return "Call awarded and being delivered in an established channel";
+	case 0x3490: return "Normal call clearing";
+	case 0x3491: return "User busy";
+	case 0x3492: return "No user responding";
+	case 0x3493: return "No answer from user (user alerted)";
+	case 0x3495: return "Call rejected";
+	case 0x3496: return "Number changed";
+	case 0x349A: return "Non-selected user clearing";
+	case 0x349B: return "Destination out of order";
+	case 0x349C: return "Invalid number format";
+	case 0x349D: return "Facility rejected";
+	case 0x349E: return "Response to STATUS ENQUIRY";
+	case 0x349F: return "Normal, unspecified";
+	case 0x34A2: return "No circuit / channel available";
+	case 0x34A6: return "Network out of order";
+	case 0x34A9: return "Temporary failure";
+	case 0x34AA: return "Switching equipment congestion";
+	case 0x34AB: return "Access information discarded";
+	case 0x34AC: return "Requested circuit / channel not available";
+	case 0x34AF: return "Resources unavailable, unspecified";
+	case 0x34B1: return "Quality of service unavailable";
+	case 0x34B2: return "Requested facility not subscribed";
+	case 0x34B9: return "Bearer capability not authorized";
+	case 0x34BA: return "Bearer capability not presently available";
+	case 0x34BF: return "Service or option not available, unspecified";
+	case 0x34C1: return "Bearer capability not implemented";
+	case 0x34C2: return "Channel type not implemented";
+	case 0x34C5: return "Requested facility not implemented";
+	case 0x34C6: return "Only restricted digital information bearer capability is available";
+	case 0x34CF: return "Service or option not implemented, unspecified";
+	case 0x34D1: return "Invalid call reference value";
+	case 0x34D2: return "Identified channel does not exist";
+	case 0x34D3: return "A suspended call exists, but this call identity does not";
+	case 0x34D4: return "Call identity in use";
+	case 0x34D5: return "No call suspended";
+	case 0x34D6: return "Call having the requested call identity has been cleared";
+	case 0x34D8: return "Incompatible destination";
+	case 0x34DB: return "Invalid transit network selection";
+	case 0x34DF: return "Invalid message, unspecified";
+	case 0x34E0: return "Mandatory information element is missing";
+	case 0x34E1: return "Message type non-existent or not implemented";
+	case 0x34E2: return "Message not compatible with call state or message type non-existent or not implemented";
+	case 0x34E3: return "Information element non-existent or not implemented";
+	case 0x34E4: return "Invalid information element contents";
+	case 0x34E5: return "Message not compatible with call state";
+	case 0x34E6: return "Recovery on timer expiry";
+	case 0x34EF: return "Protocol error, unspecified";
+	case 0x34FF: return "Interworking, unspecified";
+
+	default: return "No additional information";
+    }
+}
+#endif
+
+typedef struct {
+	int typ;
+	size_t off;
+} _cdef;
+
+#define _CBYTE	       1
+#define _CWORD	       2
+#define _CDWORD        3
+#define _CSTRUCT       4
+#define _CMSTRUCT      5
+#define _CEND	       6
+
+static _cdef cdef[] =
+{
+    /*00 */ 
+ {_CEND},
+    /*01 */ 
+ {_CEND},
+    /*02 */ 
+ {_CEND},
+    /*03 */ 
+ {_CDWORD, offsetof(_cmsg, adr.adrController)},
+    /*04 */ 
+ {_CMSTRUCT, offsetof(_cmsg, AdditionalInfo)},
+    /*05 */ 
+ {_CSTRUCT, offsetof(_cmsg, B1configuration)},
+    /*06 */ 
+ {_CWORD, offsetof(_cmsg, B1protocol)},
+    /*07 */ 
+ {_CSTRUCT, offsetof(_cmsg, B2configuration)},
+    /*08 */ 
+ {_CWORD, offsetof(_cmsg, B2protocol)},
+    /*09 */ 
+ {_CSTRUCT, offsetof(_cmsg, B3configuration)},
+    /*0a */ 
+ {_CWORD, offsetof(_cmsg, B3protocol)},
+    /*0b */ 
+ {_CSTRUCT, offsetof(_cmsg, BC)},
+    /*0c */ 
+ {_CSTRUCT, offsetof(_cmsg, BChannelinformation)},
+    /*0d */ 
+ {_CMSTRUCT, offsetof(_cmsg, BProtocol)},
+    /*0e */ 
+ {_CSTRUCT, offsetof(_cmsg, CalledPartyNumber)},
+    /*0f */ 
+ {_CSTRUCT, offsetof(_cmsg, CalledPartySubaddress)},
+    /*10 */ 
+ {_CSTRUCT, offsetof(_cmsg, CallingPartyNumber)},
+    /*11 */ 
+ {_CSTRUCT, offsetof(_cmsg, CallingPartySubaddress)},
+    /*12 */ 
+ {_CDWORD, offsetof(_cmsg, CIPmask)},
+    /*13 */ 
+ {_CDWORD, offsetof(_cmsg, CIPmask2)},
+    /*14 */ 
+ {_CWORD, offsetof(_cmsg, CIPValue)},
+    /*15 */ 
+ {_CDWORD, offsetof(_cmsg, Class)},
+    /*16 */ 
+ {_CSTRUCT, offsetof(_cmsg, ConnectedNumber)},
+    /*17 */ 
+ {_CSTRUCT, offsetof(_cmsg, ConnectedSubaddress)},
+    /*18 */ 
+ {_CDWORD, offsetof(_cmsg, Data)},
+    /*19 */ 
+ {_CWORD, offsetof(_cmsg, DataHandle)},
+    /*1a */ 
+ {_CWORD, offsetof(_cmsg, DataLength)},
+    /*1b */ 
+ {_CSTRUCT, offsetof(_cmsg, FacilityConfirmationParameter)},
+    /*1c */ 
+ {_CSTRUCT, offsetof(_cmsg, Facilitydataarray)},
+    /*1d */ 
+ {_CSTRUCT, offsetof(_cmsg, FacilityIndicationParameter)},
+    /*1e */ 
+ {_CSTRUCT, offsetof(_cmsg, FacilityRequestParameter)},
+    /*1f */ 
+ {_CWORD, offsetof(_cmsg, FacilitySelector)},
+    /*20 */ 
+ {_CWORD, offsetof(_cmsg, Flags)},
+    /*21 */ 
+ {_CDWORD, offsetof(_cmsg, Function)},
+    /*22 */ 
+ {_CSTRUCT, offsetof(_cmsg, HLC)},
+    /*23 */ 
+ {_CWORD, offsetof(_cmsg, Info)},
+    /*24 */ 
+ {_CSTRUCT, offsetof(_cmsg, InfoElement)},
+    /*25 */ 
+ {_CDWORD, offsetof(_cmsg, InfoMask)},
+    /*26 */ 
+ {_CWORD, offsetof(_cmsg, InfoNumber)},
+    /*27 */ 
+ {_CSTRUCT, offsetof(_cmsg, Keypadfacility)},
+    /*28 */ 
+ {_CSTRUCT, offsetof(_cmsg, LLC)},
+    /*29 */ 
+ {_CSTRUCT, offsetof(_cmsg, ManuData)},
+    /*2a */ 
+ {_CDWORD, offsetof(_cmsg, ManuID)},
+    /*2b */ 
+ {_CSTRUCT, offsetof(_cmsg, NCPI)},
+    /*2c */ 
+ {_CWORD, offsetof(_cmsg, Reason)},
+    /*2d */ 
+ {_CWORD, offsetof(_cmsg, Reason_B3)},
+    /*2e */ 
+ {_CWORD, offsetof(_cmsg, Reject)},
+    /*2f */ 
+ {_CSTRUCT, offsetof(_cmsg, Useruserdata)}
+};
+
+static unsigned char *cpars[] =
+{
+    /* ALERT_REQ */ [0x01] = "\x03\x04\x0c\x27\x2f\x1c\x01\x01",
+    /* CONNECT_REQ */ [0x02] = "\x03\x14\x0e\x10\x0f\x11\x0d\x06\x08\x0a\x05\x07\x09\x01\x0b\x28\x22\x04\x0c\x27\x2f\x1c\x01\x01",
+    /* DISCONNECT_REQ */ [0x04] = "\x03\x04\x0c\x27\x2f\x1c\x01\x01",
+    /* LISTEN_REQ */ [0x05] = "\x03\x25\x12\x13\x10\x11\x01",
+    /* INFO_REQ */ [0x08] = "\x03\x0e\x04\x0c\x27\x2f\x1c\x01\x01",
+    /* FACILITY_REQ */ [0x09] = "\x03\x1f\x1e\x01",
+    /* SELECT_B_PROTOCOL_REQ */ [0x0a] = "\x03\x0d\x06\x08\x0a\x05\x07\x09\x01\x01",
+    /* CONNECT_B3_REQ */ [0x0b] = "\x03\x2b\x01",
+    /* DISCONNECT_B3_REQ */ [0x0d] = "\x03\x2b\x01",
+    /* DATA_B3_REQ */ [0x0f] = "\x03\x18\x1a\x19\x20\x01",
+    /* RESET_B3_REQ */ [0x10] = "\x03\x2b\x01",
+    /* ALERT_CONF */ [0x13] = "\x03\x23\x01",
+    /* CONNECT_CONF */ [0x14] = "\x03\x23\x01",
+    /* DISCONNECT_CONF */ [0x16] = "\x03\x23\x01",
+    /* LISTEN_CONF */ [0x17] = "\x03\x23\x01",
+    /* MANUFACTURER_REQ */ [0x18] = "\x03\x2a\x15\x21\x29\x01",
+    /* INFO_CONF */ [0x1a] = "\x03\x23\x01",
+    /* FACILITY_CONF */ [0x1b] = "\x03\x23\x1f\x1b\x01",
+    /* SELECT_B_PROTOCOL_CONF */ [0x1c] = "\x03\x23\x01",
+    /* CONNECT_B3_CONF */ [0x1d] = "\x03\x23\x01",
+    /* DISCONNECT_B3_CONF */ [0x1f] = "\x03\x23\x01",
+    /* DATA_B3_CONF */ [0x21] = "\x03\x19\x23\x01",
+    /* RESET_B3_CONF */ [0x22] = "\x03\x23\x01",
+    /* CONNECT_IND */ [0x26] = "\x03\x14\x0e\x10\x0f\x11\x0b\x28\x22\x04\x0c\x27\x2f\x1c\x01\x01",
+    /* CONNECT_ACTIVE_IND */ [0x27] = "\x03\x16\x17\x28\x01",
+    /* DISCONNECT_IND */ [0x28] = "\x03\x2c\x01",
+    /* MANUFACTURER_CONF */ [0x2a] = "\x03\x2a\x15\x21\x29\x01",
+    /* INFO_IND */ [0x2c] = "\x03\x26\x24\x01",
+    /* FACILITY_IND */ [0x2d] = "\x03\x1f\x1d\x01",
+    /* CONNECT_B3_IND */ [0x2f] = "\x03\x2b\x01",
+    /* CONNECT_B3_ACTIVE_IND */ [0x30] = "\x03\x2b\x01",
+    /* DISCONNECT_B3_IND */ [0x31] = "\x03\x2d\x2b\x01",
+    /* DATA_B3_IND */ [0x33] = "\x03\x18\x1a\x19\x20\x01",
+    /* RESET_B3_IND */ [0x34] = "\x03\x2b\x01",
+    /* CONNECT_B3_T90_ACTIVE_IND */ [0x35] = "\x03\x2b\x01",
+    /* CONNECT_RESP */ [0x38] = "\x03\x2e\x0d\x06\x08\x0a\x05\x07\x09\x01\x16\x17\x28\x04\x0c\x27\x2f\x1c\x01\x01",
+    /* CONNECT_ACTIVE_RESP */ [0x39] = "\x03\x01",
+    /* DISCONNECT_RESP */ [0x3a] = "\x03\x01",
+    /* MANUFACTURER_IND */ [0x3c] = "\x03\x2a\x15\x21\x29\x01",
+    /* INFO_RESP */ [0x3e] = "\x03\x01",
+    /* FACILITY_RESP */ [0x3f] = "\x03\x1f\x01",
+    /* CONNECT_B3_RESP */ [0x41] = "\x03\x2e\x2b\x01",
+    /* CONNECT_B3_ACTIVE_RESP */ [0x42] = "\x03\x01",
+    /* DISCONNECT_B3_RESP */ [0x43] = "\x03\x01",
+    /* DATA_B3_RESP */ [0x45] = "\x03\x19\x01",
+    /* RESET_B3_RESP */ [0x46] = "\x03\x01",
+    /* CONNECT_B3_T90_ACTIVE_RESP */ [0x47] = "\x03\x01",
+    /* MANUFACTURER_RESP */ [0x4e] = "\x03\x2a\x15\x21\x29\x01",
+};
+
+/*-------------------------------------------------------*/
+
+#define byteTLcpy(x,y)        *(u8 *)(x)=*(u8 *)(y);
+#define wordTLcpy(x,y)        *(u16 *)(x)=*(u16 *)(y);
+#define dwordTLcpy(x,y)       memcpy(x,y,4);
+#define structTLcpy(x,y,l)    memcpy (x,y,l)
+#define structTLcpyovl(x,y,l) memmove (x,y,l)
+
+#define byteTRcpy(x,y)        *(u8 *)(y)=*(u8 *)(x);
+#define wordTRcpy(x,y)        *(u16 *)(y)=*(u16 *)(x);
+#define dwordTRcpy(x,y)       memcpy(y,x,4);
+#define structTRcpy(x,y,l)    memcpy (y,x,l)
+#define structTRcpyovl(x,y,l) memmove (y,x,l)
+
+/*-------------------------------------------------------*/
+static unsigned command_2_index(unsigned c, unsigned sc)
+{
+	if (c & 0x80)
+		c = 0x9 + (c & 0x0f);
+	else if (c <= 0x0f);
+	else if (c == 0x41)
+		c = 0x9 + 0x1;
+	else if (c == 0xff)
+		c = 0x00;
+	return (sc & 3) * (0x9 + 0x9) + c;
+}
+
+/*-------------------------------------------------------*/
+#define TYP (cdef[cmsg->par[cmsg->p]].typ)
+#define OFF (((u8 *)cmsg)+cdef[cmsg->par[cmsg->p]].off)
+
+static void jumpcstruct(_cmsg * cmsg)
+{
+	unsigned layer;
+	for (cmsg->p++, layer = 1; layer;) {
+		/* $$$$$ assert (cmsg->p); */
+		cmsg->p++;
+		switch (TYP) {
+		case _CMSTRUCT:
+			layer++;
+			break;
+		case _CEND:
+			layer--;
+			break;
+		}
+	}
+}
+/*-------------------------------------------------------*/
+static void pars_2_message(_cmsg * cmsg)
+{
+
+	for (; TYP != _CEND; cmsg->p++) {
+		switch (TYP) {
+		case _CBYTE:
+			byteTLcpy(cmsg->m + cmsg->l, OFF);
+			cmsg->l++;
+			break;
+		case _CWORD:
+			wordTLcpy(cmsg->m + cmsg->l, OFF);
+			cmsg->l += 2;
+			break;
+		case _CDWORD:
+			dwordTLcpy(cmsg->m + cmsg->l, OFF);
+			cmsg->l += 4;
+			break;
+		case _CSTRUCT:
+			if (*(u8 **) OFF == 0) {
+				*(cmsg->m + cmsg->l) = '\0';
+				cmsg->l++;
+			} else if (**(_cstruct *) OFF != 0xff) {
+				structTLcpy(cmsg->m + cmsg->l, *(_cstruct *) OFF, 1 + **(_cstruct *) OFF);
+				cmsg->l += 1 + **(_cstruct *) OFF;
+			} else {
+				_cstruct s = *(_cstruct *) OFF;
+				structTLcpy(cmsg->m + cmsg->l, s, 3 + *(u16 *) (s + 1));
+				cmsg->l += 3 + *(u16 *) (s + 1);
+			}
+			break;
+		case _CMSTRUCT:
+/*----- Metastruktur 0 -----*/
+			if (*(_cmstruct *) OFF == CAPI_DEFAULT) {
+				*(cmsg->m + cmsg->l) = '\0';
+				cmsg->l++;
+				jumpcstruct(cmsg);
+			}
+/*----- Metastruktur wird composed -----*/
+			else {
+				unsigned _l = cmsg->l;
+				unsigned _ls;
+				cmsg->l++;
+				cmsg->p++;
+				pars_2_message(cmsg);
+				_ls = cmsg->l - _l - 1;
+				if (_ls < 255)
+					(cmsg->m + _l)[0] = (u8) _ls;
+				else {
+					structTLcpyovl(cmsg->m + _l + 3, cmsg->m + _l + 1, _ls);
+					(cmsg->m + _l)[0] = 0xff;
+					wordTLcpy(cmsg->m + _l + 1, &_ls);
+				}
+			}
+			break;
+		}
+	}
+}
+
+/*-------------------------------------------------------*/
+unsigned capi_cmsg2message(_cmsg * cmsg, u8 * msg)
+{
+	cmsg->m = msg;
+	cmsg->l = 8;
+	cmsg->p = 0;
+	cmsg->par = cpars[command_2_index(cmsg->Command, cmsg->Subcommand)];
+
+	pars_2_message(cmsg);
+
+	wordTLcpy(msg + 0, &cmsg->l);
+	byteTLcpy(cmsg->m + 4, &cmsg->Command);
+	byteTLcpy(cmsg->m + 5, &cmsg->Subcommand);
+	wordTLcpy(cmsg->m + 2, &cmsg->ApplId);
+	wordTLcpy(cmsg->m + 6, &cmsg->Messagenumber);
+
+	return 0;
+}
+
+/*-------------------------------------------------------*/
+static void message_2_pars(_cmsg * cmsg)
+{
+	for (; TYP != _CEND; cmsg->p++) {
+
+		switch (TYP) {
+		case _CBYTE:
+			byteTRcpy(cmsg->m + cmsg->l, OFF);
+			cmsg->l++;
+			break;
+		case _CWORD:
+			wordTRcpy(cmsg->m + cmsg->l, OFF);
+			cmsg->l += 2;
+			break;
+		case _CDWORD:
+			dwordTRcpy(cmsg->m + cmsg->l, OFF);
+			cmsg->l += 4;
+			break;
+		case _CSTRUCT:
+			*(u8 **) OFF = cmsg->m + cmsg->l;
+
+			if (cmsg->m[cmsg->l] != 0xff)
+				cmsg->l += 1 + cmsg->m[cmsg->l];
+			else
+				cmsg->l += 3 + *(u16 *) (cmsg->m + cmsg->l + 1);
+			break;
+		case _CMSTRUCT:
+/*----- Metastruktur 0 -----*/
+			if (cmsg->m[cmsg->l] == '\0') {
+				*(_cmstruct *) OFF = CAPI_DEFAULT;
+				cmsg->l++;
+				jumpcstruct(cmsg);
+			} else {
+				unsigned _l = cmsg->l;
+				*(_cmstruct *) OFF = CAPI_COMPOSE;
+				cmsg->l = (cmsg->m + _l)[0] == 255 ? cmsg->l + 3 : cmsg->l + 1;
+				cmsg->p++;
+				message_2_pars(cmsg);
+			}
+			break;
+		}
+	}
+}
+
+/*-------------------------------------------------------*/
+unsigned capi_message2cmsg(_cmsg * cmsg, u8 * msg)
+{
+	memset(cmsg, 0, sizeof(_cmsg));
+	cmsg->m = msg;
+	cmsg->l = 8;
+	cmsg->p = 0;
+	byteTRcpy(cmsg->m + 4, &cmsg->Command);
+	byteTRcpy(cmsg->m + 5, &cmsg->Subcommand);
+	cmsg->par = cpars[command_2_index(cmsg->Command, cmsg->Subcommand)];
+
+	message_2_pars(cmsg);
+
+	wordTRcpy(msg + 0, &cmsg->l);
+	wordTRcpy(cmsg->m + 2, &cmsg->ApplId);
+	wordTRcpy(cmsg->m + 6, &cmsg->Messagenumber);
+
+	return 0;
+}
+
+/*-------------------------------------------------------*/
+unsigned capi_cmsg_header(_cmsg * cmsg, u16 _ApplId,
+			  u8 _Command, u8 _Subcommand,
+			  u16 _Messagenumber, u32 _Controller)
+{
+	memset(cmsg, 0, sizeof(_cmsg));
+	cmsg->ApplId = _ApplId;
+	cmsg->Command = _Command;
+	cmsg->Subcommand = _Subcommand;
+	cmsg->Messagenumber = _Messagenumber;
+	cmsg->adr.adrController = _Controller;
+	return 0;
+}
+
+/*-------------------------------------------------------*/
+
+static char *mnames[] =
+{
+	[0x01] = "ALERT_REQ",
+	[0x02] = "CONNECT_REQ",
+	[0x04] = "DISCONNECT_REQ",
+	[0x05] = "LISTEN_REQ",
+	[0x08] = "INFO_REQ",
+	[0x09] = "FACILITY_REQ",
+	[0x0a] = "SELECT_B_PROTOCOL_REQ",
+	[0x0b] = "CONNECT_B3_REQ",
+	[0x0d] = "DISCONNECT_B3_REQ",
+	[0x0f] = "DATA_B3_REQ",
+	[0x10] = "RESET_B3_REQ",
+	[0x13] = "ALERT_CONF",
+	[0x14] = "CONNECT_CONF",
+	[0x16] = "DISCONNECT_CONF",
+	[0x17] = "LISTEN_CONF",
+	[0x18] = "MANUFACTURER_REQ",
+	[0x1a] = "INFO_CONF",
+	[0x1b] = "FACILITY_CONF",
+	[0x1c] = "SELECT_B_PROTOCOL_CONF",
+	[0x1d] = "CONNECT_B3_CONF",
+	[0x1f] = "DISCONNECT_B3_CONF",
+	[0x21] = "DATA_B3_CONF",
+	[0x22] = "RESET_B3_CONF",
+	[0x26] = "CONNECT_IND",
+	[0x27] = "CONNECT_ACTIVE_IND",
+	[0x28] = "DISCONNECT_IND",
+	[0x2a] = "MANUFACTURER_CONF",
+	[0x2c] = "INFO_IND",
+	[0x2d] = "FACILITY_IND",
+	[0x2f] = "CONNECT_B3_IND",
+	[0x30] = "CONNECT_B3_ACTIVE_IND",
+	[0x31] = "DISCONNECT_B3_IND",
+	[0x33] = "DATA_B3_IND",
+	[0x34] = "RESET_B3_IND",
+	[0x35] = "CONNECT_B3_T90_ACTIVE_IND",
+	[0x38] = "CONNECT_RESP",
+	[0x39] = "CONNECT_ACTIVE_RESP",
+	[0x3a] = "DISCONNECT_RESP",
+	[0x3c] = "MANUFACTURER_IND",
+	[0x3e] = "INFO_RESP",
+	[0x3f] = "FACILITY_RESP",
+	[0x41] = "CONNECT_B3_RESP",
+	[0x42] = "CONNECT_B3_ACTIVE_RESP",
+	[0x43] = "DISCONNECT_B3_RESP",
+	[0x45] = "DATA_B3_RESP",
+	[0x46] = "RESET_B3_RESP",
+	[0x47] = "CONNECT_B3_T90_ACTIVE_RESP",
+	[0x4e] = "MANUFACTURER_RESP"
+};
+
+char *capi_cmd2str(u8 cmd, u8 subcmd)
+{
+	return mnames[command_2_index(cmd, subcmd)];
+}
+
+
+/*-------------------------------------------------------*/
+/*-------------------------------------------------------*/
+
+static char *pnames[] =
+{
+    /*00 */ NULL,
+    /*01 */ NULL,
+    /*02 */ NULL,
+    /*03 */ "Controller/PLCI/NCCI",
+    /*04 */ "AdditionalInfo",
+    /*05 */ "B1configuration",
+    /*06 */ "B1protocol",
+    /*07 */ "B2configuration",
+    /*08 */ "B2protocol",
+    /*09 */ "B3configuration",
+    /*0a */ "B3protocol",
+    /*0b */ "BC",
+    /*0c */ "BChannelinformation",
+    /*0d */ "BProtocol",
+    /*0e */ "CalledPartyNumber",
+    /*0f */ "CalledPartySubaddress",
+    /*10 */ "CallingPartyNumber",
+    /*11 */ "CallingPartySubaddress",
+    /*12 */ "CIPmask",
+    /*13 */ "CIPmask2",
+    /*14 */ "CIPValue",
+    /*15 */ "Class",
+    /*16 */ "ConnectedNumber",
+    /*17 */ "ConnectedSubaddress",
+    /*18 */ "Data32",
+    /*19 */ "DataHandle",
+    /*1a */ "DataLength",
+    /*1b */ "FacilityConfirmationParameter",
+    /*1c */ "Facilitydataarray",
+    /*1d */ "FacilityIndicationParameter",
+    /*1e */ "FacilityRequestParameter",
+    /*1f */ "FacilitySelector",
+    /*20 */ "Flags",
+    /*21 */ "Function",
+    /*22 */ "HLC",
+    /*23 */ "Info",
+    /*24 */ "InfoElement",
+    /*25 */ "InfoMask",
+    /*26 */ "InfoNumber",
+    /*27 */ "Keypadfacility",
+    /*28 */ "LLC",
+    /*29 */ "ManuData",
+    /*2a */ "ManuID",
+    /*2b */ "NCPI",
+    /*2c */ "Reason",
+    /*2d */ "Reason_B3",
+    /*2e */ "Reject",
+    /*2f */ "Useruserdata"
+};
+
+
+static char buf[8192];
+static char *p = NULL;
+
+#include <stdarg.h>
+
+/*-------------------------------------------------------*/
+static void bufprint(char *fmt,...)
+{
+	va_list f;
+	va_start(f, fmt);
+	vsprintf(p, fmt, f);
+	va_end(f);
+	p += strlen(p);
+}
+
+static void printstructlen(u8 * m, unsigned len)
+{
+	unsigned hex = 0;
+	for (; len; len--, m++)
+		if (isalnum(*m) || *m == ' ') {
+			if (hex)
+				bufprint(">");
+			bufprint("%c", *m);
+			hex = 0;
+		} else {
+			if (!hex)
+				bufprint("<%02x", *m);
+			else
+				bufprint(" %02x", *m);
+			hex = 1;
+		}
+	if (hex)
+		bufprint(">");
+}
+
+static void printstruct(u8 * m)
+{
+	unsigned len;
+	if (m[0] != 0xff) {
+		len = m[0];
+		m += 1;
+	} else {
+		len = ((u16 *) (m + 1))[0];
+		m += 3;
+	}
+	printstructlen(m, len);
+}
+
+/*-------------------------------------------------------*/
+#define NAME (pnames[cmsg->par[cmsg->p]])
+
+static void protocol_message_2_pars(_cmsg * cmsg, int level)
+{
+	for (; TYP != _CEND; cmsg->p++) {
+		int slen = 29 + 3 - level;
+		int i;
+
+		bufprint("  ");
+		for (i = 0; i < level - 1; i++)
+			bufprint(" ");
+
+		switch (TYP) {
+		case _CBYTE:
+			bufprint("%-*s = 0x%x\n", slen, NAME, *(u8 *) (cmsg->m + cmsg->l));
+			cmsg->l++;
+			break;
+		case _CWORD:
+			bufprint("%-*s = 0x%x\n", slen, NAME, *(u16 *) (cmsg->m + cmsg->l));
+			cmsg->l += 2;
+			break;
+		case _CDWORD:
+			bufprint("%-*s = 0x%lx\n", slen, NAME, *(u32 *) (cmsg->m + cmsg->l));
+			cmsg->l += 4;
+			break;
+		case _CSTRUCT:
+			bufprint("%-*s = ", slen, NAME);
+			if (cmsg->m[cmsg->l] == '\0')
+				bufprint("default");
+			else
+				printstruct(cmsg->m + cmsg->l);
+			bufprint("\n");
+			if (cmsg->m[cmsg->l] != 0xff)
+				cmsg->l += 1 + cmsg->m[cmsg->l];
+			else
+				cmsg->l += 3 + *(u16 *) (cmsg->m + cmsg->l + 1);
+
+			break;
+
+		case _CMSTRUCT:
+/*----- Metastruktur 0 -----*/
+			if (cmsg->m[cmsg->l] == '\0') {
+				bufprint("%-*s = default\n", slen, NAME);
+				cmsg->l++;
+				jumpcstruct(cmsg);
+			} else {
+				char *name = NAME;
+				unsigned _l = cmsg->l;
+				bufprint("%-*s\n", slen, name);
+				cmsg->l = (cmsg->m + _l)[0] == 255 ? cmsg->l + 3 : cmsg->l + 1;
+				cmsg->p++;
+				protocol_message_2_pars(cmsg, level + 1);
+			}
+			break;
+		}
+	}
+}
+/*-------------------------------------------------------*/
+char *capi_message2str(u8 * msg)
+{
+
+	_cmsg cmsg;
+	p = buf;
+	p[0] = 0;
+
+	cmsg.m = msg;
+	cmsg.l = 8;
+	cmsg.p = 0;
+	byteTRcpy(cmsg.m + 4, &cmsg.Command);
+	byteTRcpy(cmsg.m + 5, &cmsg.Subcommand);
+	cmsg.par = cpars[command_2_index(cmsg.Command, cmsg.Subcommand)];
+
+	bufprint("%-26s ID=%03d #0x%04x LEN=%04d\n",
+		 mnames[command_2_index(cmsg.Command, cmsg.Subcommand)],
+		 ((unsigned short *) msg)[1],
+		 ((unsigned short *) msg)[3],
+		 ((unsigned short *) msg)[0]);
+
+	protocol_message_2_pars(&cmsg, 1);
+	return buf;
+}
+
+char *capi_cmsg2str(_cmsg * cmsg)
+{
+	p = buf;
+	p[0] = 0;
+	cmsg->l = 8;
+	cmsg->p = 0;
+	bufprint("%s ID=%03d #0x%04x LEN=%04d\n",
+		 mnames[command_2_index(cmsg->Command, cmsg->Subcommand)],
+		 ((u16 *) cmsg->m)[1],
+		 ((u16 *) cmsg->m)[3],
+		 ((u16 *) cmsg->m)[0]);
+	protocol_message_2_pars(cmsg, 1);
+	return buf;
+}
+
+EXPORT_SYMBOL(capi_cmsg2message);
+EXPORT_SYMBOL(capi_message2cmsg);
+EXPORT_SYMBOL(capi_cmsg_header);
+EXPORT_SYMBOL(capi_cmd2str);
+EXPORT_SYMBOL(capi_cmsg2str);
+EXPORT_SYMBOL(capi_message2str);
+EXPORT_SYMBOL(capi_info2str);
diff --git a/drivers/isdn/capi/kcapi.c b/drivers/isdn/capi/kcapi.c
new file mode 100644
index 000000000000..feec40cf5900
--- /dev/null
+++ b/drivers/isdn/capi/kcapi.c
@@ -0,0 +1,991 @@
+/* $Id: kcapi.c,v 1.1.2.8 2004/03/26 19:57:20 armin Exp $
+ * 
+ * Kernel CAPI 2.0 Module
+ * 
+ * Copyright 1999 by Carsten Paeth <calle@calle.de>
+ * Copyright 2002 by Kai Germaschewski <kai@germaschewski.name>
+ * 
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+#define CONFIG_AVMB1_COMPAT
+
+#include "kcapi.h"
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/skbuff.h>
+#include <linux/workqueue.h>
+#include <linux/capi.h>
+#include <linux/kernelcapi.h>
+#include <linux/init.h>
+#include <linux/moduleparam.h>
+#include <linux/delay.h>
+#include <asm/uaccess.h>
+#include <linux/isdn/capicmd.h>
+#include <linux/isdn/capiutil.h>
+#ifdef CONFIG_AVMB1_COMPAT
+#include <linux/b1lli.h>
+#endif
+
+static char *revision = "$Revision: 1.1.2.8 $";
+
+/* ------------------------------------------------------------- */
+
+static int showcapimsgs = 0;
+
+MODULE_DESCRIPTION("CAPI4Linux: kernel CAPI layer");
+MODULE_AUTHOR("Carsten Paeth");
+MODULE_LICENSE("GPL");
+module_param(showcapimsgs, uint, 0);
+
+/* ------------------------------------------------------------- */
+
+struct capi_notifier {
+	struct work_struct work;
+	unsigned int cmd;
+	u32 controller;
+	u16 applid;
+	u32 ncci;
+};
+
+/* ------------------------------------------------------------- */
+
+static struct capi_version driver_version = {2, 0, 1, 1<<4};
+static char driver_serial[CAPI_SERIAL_LEN] = "0004711";
+static char capi_manufakturer[64] = "AVM Berlin";
+
+#define NCCI2CTRL(ncci)    (((ncci) >> 24) & 0x7f)
+
+LIST_HEAD(capi_drivers);
+DEFINE_RWLOCK(capi_drivers_list_lock);
+
+static DEFINE_RWLOCK(application_lock);
+static DECLARE_MUTEX(controller_sem);
+
+struct capi20_appl *capi_applications[CAPI_MAXAPPL];
+struct capi_ctr *capi_cards[CAPI_MAXCONTR];
+
+static int ncards;
+
+/* -------- controller ref counting -------------------------------------- */
+
+static inline struct capi_ctr *
+capi_ctr_get(struct capi_ctr *card)
+{
+	if (!try_module_get(card->owner))
+		return NULL;
+	return card;
+}
+
+static inline void
+capi_ctr_put(struct capi_ctr *card)
+{
+	module_put(card->owner);
+}
+
+/* ------------------------------------------------------------- */
+
+static inline struct capi_ctr *get_capi_ctr_by_nr(u16 contr)
+{
+	if (contr - 1 >= CAPI_MAXCONTR)
+		return NULL;
+
+	return capi_cards[contr - 1];
+}
+
+static inline struct capi20_appl *get_capi_appl_by_nr(u16 applid)
+{
+	if (applid - 1 >= CAPI_MAXAPPL)
+		return NULL;
+
+	return capi_applications[applid - 1];
+}
+
+/* -------- util functions ------------------------------------ */
+
+static inline int capi_cmd_valid(u8 cmd)
+{
+	switch (cmd) {
+	case CAPI_ALERT:
+	case CAPI_CONNECT:
+	case CAPI_CONNECT_ACTIVE:
+	case CAPI_CONNECT_B3_ACTIVE:
+	case CAPI_CONNECT_B3:
+	case CAPI_CONNECT_B3_T90_ACTIVE:
+	case CAPI_DATA_B3:
+	case CAPI_DISCONNECT_B3:
+	case CAPI_DISCONNECT:
+	case CAPI_FACILITY:
+	case CAPI_INFO:
+	case CAPI_LISTEN:
+	case CAPI_MANUFACTURER:
+	case CAPI_RESET_B3:
+	case CAPI_SELECT_B_PROTOCOL:
+		return 1;
+	}
+	return 0;
+}
+
+static inline int capi_subcmd_valid(u8 subcmd)
+{
+	switch (subcmd) {
+	case CAPI_REQ:
+	case CAPI_CONF:
+	case CAPI_IND:
+	case CAPI_RESP:
+		return 1;
+	}
+	return 0;
+}
+
+/* ------------------------------------------------------------ */
+
+static void register_appl(struct capi_ctr *card, u16 applid, capi_register_params *rparam)
+{
+	card = capi_ctr_get(card);
+
+	if (card)
+		card->register_appl(card, applid, rparam);
+	else
+		printk(KERN_WARNING "%s: cannot get card resources\n", __FUNCTION__);
+}
+
+
+static void release_appl(struct capi_ctr *card, u16 applid)
+{
+	DBG("applid %#x", applid);
+	
+	card->release_appl(card, applid);
+	capi_ctr_put(card);
+}
+
+/* -------- KCI_CONTRUP --------------------------------------- */
+
+static void notify_up(u32 contr)
+{
+	struct capi_ctr *card = get_capi_ctr_by_nr(contr);
+	struct capi20_appl *ap;
+	u16 applid;
+
+	if (showcapimsgs & 1) {
+	        printk(KERN_DEBUG "kcapi: notify up contr %d\n", contr);
+	}
+	if (!card) {
+		printk(KERN_WARNING "%s: invalid contr %d\n", __FUNCTION__, contr);
+		return;
+	}
+	for (applid = 1; applid <= CAPI_MAXAPPL; applid++) {
+		ap = get_capi_appl_by_nr(applid);
+		if (!ap || ap->release_in_progress) continue;
+		register_appl(card, applid, &ap->rparam);
+		if (ap->callback && !ap->release_in_progress)
+			ap->callback(KCI_CONTRUP, contr, &card->profile);
+	}
+}
+
+/* -------- KCI_CONTRDOWN ------------------------------------- */
+
+static void notify_down(u32 contr)
+{
+	struct capi20_appl *ap;
+	u16 applid;
+
+	if (showcapimsgs & 1) {
+        	printk(KERN_DEBUG "kcapi: notify down contr %d\n", contr);
+	}
+
+	for (applid = 1; applid <= CAPI_MAXAPPL; applid++) {
+		ap = get_capi_appl_by_nr(applid);
+		if (ap && ap->callback && !ap->release_in_progress)
+			ap->callback(KCI_CONTRDOWN, contr, NULL);
+	}
+}
+
+static void notify_handler(void *data)
+{
+	struct capi_notifier *np = data;
+
+	switch (np->cmd) {
+	case KCI_CONTRUP:
+		notify_up(np->controller);
+		break;
+	case KCI_CONTRDOWN:
+		notify_down(np->controller);
+		break;
+	}
+
+	kfree(np);
+}
+
+/*
+ * The notifier will result in adding/deleteing of devices. Devices can
+ * only removed in user process, not in bh.
+ */
+static int notify_push(unsigned int cmd, u32 controller, u16 applid, u32 ncci)
+{
+	struct capi_notifier *np = kmalloc(sizeof(*np), GFP_ATOMIC);
+
+	if (!np)
+		return -ENOMEM;
+
+	INIT_WORK(&np->work, notify_handler, np);
+	np->cmd = cmd;
+	np->controller = controller;
+	np->applid = applid;
+	np->ncci = ncci;
+
+	schedule_work(&np->work);
+	return 0;
+}
+
+	
+/* -------- Receiver ------------------------------------------ */
+
+static void recv_handler(void *_ap)
+{
+	struct sk_buff *skb;
+	struct capi20_appl *ap = (struct capi20_appl *) _ap;
+
+	if ((!ap) || (ap->release_in_progress))
+		return;
+
+	down(&ap->recv_sem);
+	while ((skb = skb_dequeue(&ap->recv_queue))) {
+		if (CAPIMSG_CMD(skb->data) == CAPI_DATA_B3_IND)
+			ap->nrecvdatapkt++;
+		else
+			ap->nrecvctlpkt++;
+
+		ap->recv_message(ap, skb);
+	}
+	up(&ap->recv_sem);
+}
+
+void capi_ctr_handle_message(struct capi_ctr * card, u16 appl, struct sk_buff *skb)
+{
+	struct capi20_appl *ap;
+	int showctl = 0;
+	u8 cmd, subcmd;
+	unsigned long flags;
+
+	if (card->cardstate != CARD_RUNNING) {
+		printk(KERN_INFO "kcapi: controller %d not active, got: %s",
+		       card->cnr, capi_message2str(skb->data));
+		goto error;
+	}
+
+	cmd = CAPIMSG_COMMAND(skb->data);
+        subcmd = CAPIMSG_SUBCOMMAND(skb->data);
+	if (cmd == CAPI_DATA_B3 && subcmd == CAPI_IND) {
+		card->nrecvdatapkt++;
+	        if (card->traceflag > 2) showctl |= 2;
+	} else {
+		card->nrecvctlpkt++;
+	        if (card->traceflag) showctl |= 2;
+	}
+	showctl |= (card->traceflag & 1);
+	if (showctl & 2) {
+		if (showctl & 1) {
+			printk(KERN_DEBUG "kcapi: got [0x%lx] id#%d %s len=%u\n",
+			       (unsigned long) card->cnr,
+			       CAPIMSG_APPID(skb->data),
+			       capi_cmd2str(cmd, subcmd),
+			       CAPIMSG_LEN(skb->data));
+		} else {
+			printk(KERN_DEBUG "kcapi: got [0x%lx] %s\n",
+					(unsigned long) card->cnr,
+					capi_message2str(skb->data));
+		}
+
+	}
+
+	read_lock_irqsave(&application_lock, flags);
+	ap = get_capi_appl_by_nr(CAPIMSG_APPID(skb->data));
+	if ((!ap) || (ap->release_in_progress)) {
+		read_unlock_irqrestore(&application_lock, flags);
+		printk(KERN_ERR "kcapi: handle_message: applid %d state released (%s)\n",
+			CAPIMSG_APPID(skb->data), capi_message2str(skb->data));
+		goto error;
+	}
+	skb_queue_tail(&ap->recv_queue, skb);
+	schedule_work(&ap->recv_work);
+	read_unlock_irqrestore(&application_lock, flags);
+
+	return;
+
+error:
+	kfree_skb(skb);
+}
+
+EXPORT_SYMBOL(capi_ctr_handle_message);
+
+void capi_ctr_ready(struct capi_ctr * card)
+{
+	card->cardstate = CARD_RUNNING;
+
+        printk(KERN_NOTICE "kcapi: card %d \"%s\" ready.\n",
+	       card->cnr, card->name);
+
+	notify_push(KCI_CONTRUP, card->cnr, 0, 0);
+}
+
+EXPORT_SYMBOL(capi_ctr_ready);
+
+void capi_ctr_reseted(struct capi_ctr * card)
+{
+	u16 appl;
+
+	DBG("");
+
+        if (card->cardstate == CARD_DETECTED)
+		return;
+
+        card->cardstate = CARD_DETECTED;
+
+	memset(card->manu, 0, sizeof(card->manu));
+	memset(&card->version, 0, sizeof(card->version));
+	memset(&card->profile, 0, sizeof(card->profile));
+	memset(card->serial, 0, sizeof(card->serial));
+
+	for (appl = 1; appl <= CAPI_MAXAPPL; appl++) {
+		struct capi20_appl *ap = get_capi_appl_by_nr(appl);
+		if (!ap || ap->release_in_progress)
+			continue;
+
+		capi_ctr_put(card);
+	}
+
+	printk(KERN_NOTICE "kcapi: card %d down.\n", card->cnr);
+
+	notify_push(KCI_CONTRDOWN, card->cnr, 0, 0);
+}
+
+EXPORT_SYMBOL(capi_ctr_reseted);
+
+void capi_ctr_suspend_output(struct capi_ctr *card)
+{
+	if (!card->blocked) {
+		printk(KERN_DEBUG "kcapi: card %d suspend\n", card->cnr);
+		card->blocked = 1;
+	}
+}
+
+EXPORT_SYMBOL(capi_ctr_suspend_output);
+
+void capi_ctr_resume_output(struct capi_ctr *card)
+{
+	if (card->blocked) {
+		printk(KERN_DEBUG "kcapi: card %d resume\n", card->cnr);
+		card->blocked = 0;
+	}
+}
+
+EXPORT_SYMBOL(capi_ctr_resume_output);
+
+/* ------------------------------------------------------------- */
+
+int
+attach_capi_ctr(struct capi_ctr *card)
+{
+	int i;
+
+	down(&controller_sem);
+
+	for (i = 0; i < CAPI_MAXCONTR; i++) {
+		if (capi_cards[i] == NULL)
+			break;
+	}
+	if (i == CAPI_MAXCONTR) {
+		up(&controller_sem);
+		printk(KERN_ERR "kcapi: out of controller slots\n");
+	   	return -EBUSY;
+	}
+	capi_cards[i] = card;
+
+	up(&controller_sem);
+
+	card->nrecvctlpkt = 0;
+	card->nrecvdatapkt = 0;
+	card->nsentctlpkt = 0;
+	card->nsentdatapkt = 0;
+	card->cnr = i + 1;
+	card->cardstate = CARD_DETECTED;
+	card->blocked = 0;
+	card->traceflag = showcapimsgs;
+
+	sprintf(card->procfn, "capi/controllers/%d", card->cnr);
+	card->procent = create_proc_entry(card->procfn, 0, NULL);
+	if (card->procent) {
+	   card->procent->read_proc = 
+		(int (*)(char *,char **,off_t,int,int *,void *))
+			card->ctr_read_proc;
+	   card->procent->data = card;
+	}
+
+	ncards++;
+	printk(KERN_NOTICE "kcapi: Controller %d: %s attached\n",
+			card->cnr, card->name);
+	return 0;
+}
+
+EXPORT_SYMBOL(attach_capi_ctr);
+
+int detach_capi_ctr(struct capi_ctr *card)
+{
+        if (card->cardstate != CARD_DETECTED)
+		capi_ctr_reseted(card);
+
+	ncards--;
+
+	if (card->procent) {
+	   remove_proc_entry(card->procfn, NULL);
+	   card->procent = NULL;
+	}
+	capi_cards[card->cnr - 1] = NULL;
+	printk(KERN_NOTICE "kcapi: Controller %d: %s unregistered\n",
+			card->cnr, card->name);
+
+	return 0;
+}
+
+EXPORT_SYMBOL(detach_capi_ctr);
+
+void register_capi_driver(struct capi_driver *driver)
+{
+	unsigned long flags;
+
+	write_lock_irqsave(&capi_drivers_list_lock, flags);
+	list_add_tail(&driver->list, &capi_drivers);
+	write_unlock_irqrestore(&capi_drivers_list_lock, flags);
+}
+
+EXPORT_SYMBOL(register_capi_driver);
+
+void unregister_capi_driver(struct capi_driver *driver)
+{
+	unsigned long flags;
+
+	write_lock_irqsave(&capi_drivers_list_lock, flags);
+	list_del(&driver->list);
+	write_unlock_irqrestore(&capi_drivers_list_lock, flags);
+}
+
+EXPORT_SYMBOL(unregister_capi_driver);
+
+/* ------------------------------------------------------------- */
+/* -------- CAPI2.0 Interface ---------------------------------- */
+/* ------------------------------------------------------------- */
+
+u16 capi20_isinstalled(void)
+{
+	int i;
+	for (i = 0; i < CAPI_MAXCONTR; i++) {
+		if (capi_cards[i] && capi_cards[i]->cardstate == CARD_RUNNING)
+			return CAPI_NOERROR;
+	}
+	return CAPI_REGNOTINSTALLED;
+}
+
+EXPORT_SYMBOL(capi20_isinstalled);
+
+u16 capi20_register(struct capi20_appl *ap)
+{
+	int i;
+	u16 applid;
+	unsigned long flags;
+
+	DBG("");
+
+	if (ap->rparam.datablklen < 128)
+		return CAPI_LOGBLKSIZETOSMALL;
+
+	write_lock_irqsave(&application_lock, flags);
+
+	for (applid = 1; applid <= CAPI_MAXAPPL; applid++) {
+		if (capi_applications[applid - 1] == NULL)
+			break;
+	}
+	if (applid > CAPI_MAXAPPL) {
+		write_unlock_irqrestore(&application_lock, flags);
+		return CAPI_TOOMANYAPPLS;
+	}
+
+	ap->applid = applid;
+	capi_applications[applid - 1] = ap;
+
+	ap->nrecvctlpkt = 0;
+	ap->nrecvdatapkt = 0;
+	ap->nsentctlpkt = 0;
+	ap->nsentdatapkt = 0;
+	ap->callback = NULL;
+	init_MUTEX(&ap->recv_sem);
+	skb_queue_head_init(&ap->recv_queue);
+	INIT_WORK(&ap->recv_work, recv_handler, (void *)ap);
+	ap->release_in_progress = 0;
+
+	write_unlock_irqrestore(&application_lock, flags);
+	
+	down(&controller_sem);
+	for (i = 0; i < CAPI_MAXCONTR; i++) {
+		if (!capi_cards[i] || capi_cards[i]->cardstate != CARD_RUNNING)
+			continue;
+		register_appl(capi_cards[i], applid, &ap->rparam);
+	}
+	up(&controller_sem);
+
+	if (showcapimsgs & 1) {
+		printk(KERN_DEBUG "kcapi: appl %d up\n", applid);
+	}
+
+	return CAPI_NOERROR;
+}
+
+EXPORT_SYMBOL(capi20_register);
+
+u16 capi20_release(struct capi20_appl *ap)
+{
+	int i;
+	unsigned long flags;
+
+	DBG("applid %#x", ap->applid);
+
+	write_lock_irqsave(&application_lock, flags);
+	ap->release_in_progress = 1;
+	capi_applications[ap->applid - 1] = NULL;
+	write_unlock_irqrestore(&application_lock, flags);
+
+	down(&controller_sem);
+	for (i = 0; i < CAPI_MAXCONTR; i++) {
+		if (!capi_cards[i] || capi_cards[i]->cardstate != CARD_RUNNING)
+			continue;
+		release_appl(capi_cards[i], ap->applid);
+	}
+	up(&controller_sem);
+
+	flush_scheduled_work();
+	skb_queue_purge(&ap->recv_queue);
+
+	if (showcapimsgs & 1) {
+		printk(KERN_DEBUG "kcapi: appl %d down\n", ap->applid);
+	}
+
+	return CAPI_NOERROR;
+}
+
+EXPORT_SYMBOL(capi20_release);
+
+u16 capi20_put_message(struct capi20_appl *ap, struct sk_buff *skb)
+{
+	struct capi_ctr *card;
+	int showctl = 0;
+	u8 cmd, subcmd;
+
+	DBG("applid %#x", ap->applid);
+ 
+	if (ncards == 0)
+		return CAPI_REGNOTINSTALLED;
+	if ((ap->applid == 0) || ap->release_in_progress)
+		return CAPI_ILLAPPNR;
+	if (skb->len < 12
+	    || !capi_cmd_valid(CAPIMSG_COMMAND(skb->data))
+	    || !capi_subcmd_valid(CAPIMSG_SUBCOMMAND(skb->data)))
+		return CAPI_ILLCMDORSUBCMDORMSGTOSMALL;
+	card = get_capi_ctr_by_nr(CAPIMSG_CONTROLLER(skb->data));
+	if (!card || card->cardstate != CARD_RUNNING) {
+		card = get_capi_ctr_by_nr(1); // XXX why?
+	        if (!card || card->cardstate != CARD_RUNNING) 
+			return CAPI_REGNOTINSTALLED;
+	}
+	if (card->blocked)
+		return CAPI_SENDQUEUEFULL;
+
+	cmd = CAPIMSG_COMMAND(skb->data);
+        subcmd = CAPIMSG_SUBCOMMAND(skb->data);
+
+	if (cmd == CAPI_DATA_B3 && subcmd== CAPI_REQ) {
+		card->nsentdatapkt++;
+		ap->nsentdatapkt++;
+	        if (card->traceflag > 2) showctl |= 2;
+	} else {
+		card->nsentctlpkt++;
+		ap->nsentctlpkt++;
+	        if (card->traceflag) showctl |= 2;
+	}
+	showctl |= (card->traceflag & 1);
+	if (showctl & 2) {
+		if (showctl & 1) {
+			printk(KERN_DEBUG "kcapi: put [%#x] id#%d %s len=%u\n",
+			       CAPIMSG_CONTROLLER(skb->data),
+			       CAPIMSG_APPID(skb->data),
+			       capi_cmd2str(cmd, subcmd),
+			       CAPIMSG_LEN(skb->data));
+		} else {
+			printk(KERN_DEBUG "kcapi: put [%#x] %s\n",
+			       CAPIMSG_CONTROLLER(skb->data),
+			       capi_message2str(skb->data));
+		}
+
+	}
+	return card->send_message(card, skb);
+}
+
+EXPORT_SYMBOL(capi20_put_message);
+
+u16 capi20_get_manufacturer(u32 contr, u8 *buf)
+{
+	struct capi_ctr *card;
+
+	if (contr == 0) {
+		strlcpy(buf, capi_manufakturer, CAPI_MANUFACTURER_LEN);
+		return CAPI_NOERROR;
+	}
+	card = get_capi_ctr_by_nr(contr);
+	if (!card || card->cardstate != CARD_RUNNING) 
+		return CAPI_REGNOTINSTALLED;
+	strlcpy(buf, card->manu, CAPI_MANUFACTURER_LEN);
+	return CAPI_NOERROR;
+}
+
+EXPORT_SYMBOL(capi20_get_manufacturer);
+
+u16 capi20_get_version(u32 contr, struct capi_version *verp)
+{
+	struct capi_ctr *card;
+
+	if (contr == 0) {
+		*verp = driver_version;
+		return CAPI_NOERROR;
+	}
+	card = get_capi_ctr_by_nr(contr);
+	if (!card || card->cardstate != CARD_RUNNING) 
+		return CAPI_REGNOTINSTALLED;
+
+	memcpy((void *) verp, &card->version, sizeof(capi_version));
+	return CAPI_NOERROR;
+}
+
+EXPORT_SYMBOL(capi20_get_version);
+
+u16 capi20_get_serial(u32 contr, u8 *serial)
+{
+	struct capi_ctr *card;
+
+	if (contr == 0) {
+		strlcpy(serial, driver_serial, CAPI_SERIAL_LEN);
+		return CAPI_NOERROR;
+	}
+	card = get_capi_ctr_by_nr(contr);
+	if (!card || card->cardstate != CARD_RUNNING) 
+		return CAPI_REGNOTINSTALLED;
+
+	strlcpy((void *) serial, card->serial, CAPI_SERIAL_LEN);
+	return CAPI_NOERROR;
+}
+
+EXPORT_SYMBOL(capi20_get_serial);
+
+u16 capi20_get_profile(u32 contr, struct capi_profile *profp)
+{
+	struct capi_ctr *card;
+
+	if (contr == 0) {
+		profp->ncontroller = ncards;
+		return CAPI_NOERROR;
+	}
+	card = get_capi_ctr_by_nr(contr);
+	if (!card || card->cardstate != CARD_RUNNING) 
+		return CAPI_REGNOTINSTALLED;
+
+	memcpy((void *) profp, &card->profile,
+			sizeof(struct capi_profile));
+	return CAPI_NOERROR;
+}
+
+EXPORT_SYMBOL(capi20_get_profile);
+
+#ifdef CONFIG_AVMB1_COMPAT
+static int old_capi_manufacturer(unsigned int cmd, void __user *data)
+{
+	avmb1_loadandconfigdef ldef;
+	avmb1_extcarddef cdef;
+	avmb1_resetdef rdef;
+	capicardparams cparams;
+	struct capi_ctr *card;
+	struct capi_driver *driver = NULL;
+	capiloaddata ldata;
+	struct list_head *l;
+	unsigned long flags;
+	int retval;
+
+	switch (cmd) {
+	case AVMB1_ADDCARD:
+	case AVMB1_ADDCARD_WITH_TYPE:
+		if (cmd == AVMB1_ADDCARD) {
+		   if ((retval = copy_from_user(&cdef, data,
+					    sizeof(avmb1_carddef))))
+			   return retval;
+		   cdef.cardtype = AVM_CARDTYPE_B1;
+		} else {
+		   if ((retval = copy_from_user(&cdef, data,
+					    sizeof(avmb1_extcarddef))))
+			   return retval;
+		}
+		cparams.port = cdef.port;
+		cparams.irq = cdef.irq;
+		cparams.cardnr = cdef.cardnr;
+
+		read_lock_irqsave(&capi_drivers_list_lock, flags);
+                switch (cdef.cardtype) {
+			case AVM_CARDTYPE_B1:
+				list_for_each(l, &capi_drivers) {
+					driver = list_entry(l, struct capi_driver, list);
+					if (strcmp(driver->name, "b1isa") == 0)
+						break;
+				}
+				break;
+			case AVM_CARDTYPE_T1:
+				list_for_each(l, &capi_drivers) {
+					driver = list_entry(l, struct capi_driver, list);
+					if (strcmp(driver->name, "t1isa") == 0)
+						break;
+				}
+				break;
+			default:
+				driver = NULL;
+				break;
+		}
+		if (!driver) {
+			read_unlock_irqrestore(&capi_drivers_list_lock, flags);
+			printk(KERN_ERR "kcapi: driver not loaded.\n");
+			return -EIO;
+		}
+		if (!driver->add_card) {
+			read_unlock_irqrestore(&capi_drivers_list_lock, flags);
+			printk(KERN_ERR "kcapi: driver has no add card function.\n");
+			return -EIO;
+		}
+
+		retval = driver->add_card(driver, &cparams);
+		read_unlock_irqrestore(&capi_drivers_list_lock, flags);
+		return retval;
+
+	case AVMB1_LOAD:
+	case AVMB1_LOAD_AND_CONFIG:
+
+		if (cmd == AVMB1_LOAD) {
+			if (copy_from_user(&ldef, data,
+					   sizeof(avmb1_loaddef)))
+				return -EFAULT;
+			ldef.t4config.len = 0;
+			ldef.t4config.data = NULL;
+		} else {
+			if (copy_from_user(&ldef, data,
+					   sizeof(avmb1_loadandconfigdef)))
+				return -EFAULT;
+		}
+		card = get_capi_ctr_by_nr(ldef.contr);
+		card = capi_ctr_get(card);
+		if (!card)
+			return -ESRCH;
+		if (card->load_firmware == 0) {
+			printk(KERN_DEBUG "kcapi: load: no load function\n");
+			return -ESRCH;
+		}
+
+		if (ldef.t4file.len <= 0) {
+			printk(KERN_DEBUG "kcapi: load: invalid parameter: length of t4file is %d ?\n", ldef.t4file.len);
+			return -EINVAL;
+		}
+		if (ldef.t4file.data == 0) {
+			printk(KERN_DEBUG "kcapi: load: invalid parameter: dataptr is 0\n");
+			return -EINVAL;
+		}
+
+		ldata.firmware.user = 1;
+		ldata.firmware.data = ldef.t4file.data;
+		ldata.firmware.len = ldef.t4file.len;
+		ldata.configuration.user = 1;
+		ldata.configuration.data = ldef.t4config.data;
+		ldata.configuration.len = ldef.t4config.len;
+
+		if (card->cardstate != CARD_DETECTED) {
+			printk(KERN_INFO "kcapi: load: contr=%d not in detect state\n", ldef.contr);
+			return -EBUSY;
+		}
+		card->cardstate = CARD_LOADING;
+
+		retval = card->load_firmware(card, &ldata);
+
+		if (retval) {
+			card->cardstate = CARD_DETECTED;
+			capi_ctr_put(card);
+			return retval;
+		}
+
+		while (card->cardstate != CARD_RUNNING) {
+
+			msleep_interruptible(100);	/* 0.1 sec */
+
+			if (signal_pending(current)) {
+				capi_ctr_put(card);
+				return -EINTR;
+			}
+		}
+		capi_ctr_put(card);
+		return 0;
+
+	case AVMB1_RESETCARD:
+		if (copy_from_user(&rdef, data, sizeof(avmb1_resetdef)))
+			return -EFAULT;
+		card = get_capi_ctr_by_nr(rdef.contr);
+		if (!card)
+			return -ESRCH;
+
+		if (card->cardstate == CARD_DETECTED)
+			return 0;
+
+		card->reset_ctr(card);
+
+		while (card->cardstate > CARD_DETECTED) {
+
+			msleep_interruptible(100);	/* 0.1 sec */
+
+			if (signal_pending(current))
+				return -EINTR;
+		}
+		return 0;
+
+	}
+	return -EINVAL;
+}
+#endif
+
+int capi20_manufacturer(unsigned int cmd, void __user *data)
+{
+        struct capi_ctr *card;
+
+	switch (cmd) {
+#ifdef CONFIG_AVMB1_COMPAT
+	case AVMB1_LOAD:
+	case AVMB1_LOAD_AND_CONFIG:
+	case AVMB1_RESETCARD:
+	case AVMB1_GET_CARDINFO:
+	case AVMB1_REMOVECARD:
+		return old_capi_manufacturer(cmd, data);
+#endif
+	case KCAPI_CMD_TRACE:
+	{
+		kcapi_flagdef fdef;
+
+		if (copy_from_user(&fdef, data, sizeof(kcapi_flagdef)))
+			return -EFAULT;
+
+		card = get_capi_ctr_by_nr(fdef.contr);
+		if (!card)
+			return -ESRCH;
+
+		card->traceflag = fdef.flag;
+		printk(KERN_INFO "kcapi: contr %d set trace=%d\n",
+			card->cnr, card->traceflag);
+		return 0;
+	}
+	case KCAPI_CMD_ADDCARD:
+	{
+		struct list_head *l;
+		struct capi_driver *driver = NULL;
+		capicardparams cparams;
+		kcapi_carddef cdef;
+		int retval;
+
+		if ((retval = copy_from_user(&cdef, data, sizeof(cdef))))
+			return retval;
+
+		cparams.port = cdef.port;
+		cparams.irq = cdef.irq;
+		cparams.membase = cdef.membase;
+		cparams.cardnr = cdef.cardnr;
+		cparams.cardtype = 0;
+		cdef.driver[sizeof(cdef.driver)-1] = 0;
+
+		list_for_each(l, &capi_drivers) {
+			driver = list_entry(l, struct capi_driver, list);
+			if (strcmp(driver->name, cdef.driver) == 0)
+				break;
+		}
+		if (driver == 0) {
+			printk(KERN_ERR "kcapi: driver \"%s\" not loaded.\n",
+					cdef.driver);
+			return -ESRCH;
+		}
+
+		if (!driver->add_card) {
+			printk(KERN_ERR "kcapi: driver \"%s\" has no add card function.\n", cdef.driver);
+			return -EIO;
+		}
+
+		return driver->add_card(driver, &cparams);
+	}
+
+	default:
+		printk(KERN_ERR "kcapi: manufacturer command %d unknown.\n",
+					cmd);
+		break;
+
+	}
+	return -EINVAL;
+}
+
+EXPORT_SYMBOL(capi20_manufacturer);
+
+/* temporary hack */
+void capi20_set_callback(struct capi20_appl *ap,
+			 void (*callback) (unsigned int cmd, __u32 contr, void *data))
+{
+	ap->callback = callback;
+}
+
+EXPORT_SYMBOL(capi20_set_callback);
+
+/* ------------------------------------------------------------- */
+/* -------- Init & Cleanup ------------------------------------- */
+/* ------------------------------------------------------------- */
+
+/*
+ * init / exit functions
+ */
+
+static int __init kcapi_init(void)
+{
+	char *p;
+	char rev[32];
+
+        kcapi_proc_init();
+
+	if ((p = strchr(revision, ':')) != 0 && p[1]) {
+		strlcpy(rev, p + 2, sizeof(rev));
+		if ((p = strchr(rev, '$')) != 0 && p > rev)
+		   *(p-1) = 0;
+	} else
+		strcpy(rev, "1.0");
+
+        printk(KERN_NOTICE "CAPI Subsystem Rev %s\n", rev);
+
+	return 0;
+}
+
+static void __exit kcapi_exit(void)
+{
+        kcapi_proc_exit();
+
+	/* make sure all notifiers are finished */
+	flush_scheduled_work();
+}
+
+module_init(kcapi_init);
+module_exit(kcapi_exit);
diff --git a/drivers/isdn/capi/kcapi.h b/drivers/isdn/capi/kcapi.h
new file mode 100644
index 000000000000..1cb2c40f9921
--- /dev/null
+++ b/drivers/isdn/capi/kcapi.h
@@ -0,0 +1,49 @@
+/*
+ * Kernel CAPI 2.0 Module
+ * 
+ * Copyright 1999 by Carsten Paeth <calle@calle.de>
+ * Copyright 2002 by Kai Germaschewski <kai@germaschewski.name>
+ * 
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/list.h>
+#include <linux/isdn/capilli.h>
+
+#ifdef KCAPI_DEBUG
+#define DBG(format, arg...) do { \
+printk(KERN_DEBUG "%s: " format "\n" , __FUNCTION__ , ## arg); \
+} while (0)
+#else
+#define DBG(format, arg...) /* */
+#endif
+
+enum {
+	CARD_DETECTED = 1,
+	CARD_LOADING  =	2,
+	CARD_RUNNING  = 3,
+};
+
+extern struct list_head capi_drivers;
+extern rwlock_t capi_drivers_list_lock;
+
+extern struct capi20_appl *capi_applications[CAPI_MAXAPPL];
+extern struct capi_ctr *capi_cards[CAPI_MAXCONTR];
+
+#ifdef CONFIG_PROC_FS
+
+void kcapi_proc_init(void);
+void kcapi_proc_exit(void);
+
+#else
+
+static inline void kcapi_proc_init(void) { };
+static inline void kcapi_proc_exit(void) { };
+
+#endif
+
diff --git a/drivers/isdn/capi/kcapi_proc.c b/drivers/isdn/capi/kcapi_proc.c
new file mode 100644
index 000000000000..16dc5418ff41
--- /dev/null
+++ b/drivers/isdn/capi/kcapi_proc.c
@@ -0,0 +1,336 @@
+/*
+ * Kernel CAPI 2.0 Module - /proc/capi handling
+ * 
+ * Copyright 1999 by Carsten Paeth <calle@calle.de>
+ * Copyright 2002 by Kai Germaschewski <kai@germaschewski.name>
+ * 
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ *
+ */
+
+
+#include "kcapi.h"
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/init.h>
+
+static char *
+cardstate2str(unsigned short cardstate)
+{
+	switch (cardstate) {
+	case CARD_DETECTED:	return "detected";
+	case CARD_LOADING:	return "loading";
+	case CARD_RUNNING:	return "running";
+	default:	        return "???";
+	}
+}
+
+// /proc/capi
+// ===========================================================================
+
+// /proc/capi/controller: 
+//      cnr driver cardstate name driverinfo
+// /proc/capi/contrstats:
+//      cnr nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt
+// ---------------------------------------------------------------------------
+
+static void *controller_start(struct seq_file *seq, loff_t *pos)
+{
+	if (*pos < CAPI_MAXCONTR)
+		return &capi_cards[*pos];
+
+	return NULL;
+}
+
+static void *controller_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+	++*pos;
+	if (*pos < CAPI_MAXCONTR)
+		return &capi_cards[*pos];
+
+	return NULL;
+}
+
+static void controller_stop(struct seq_file *seq, void *v)
+{
+}
+
+static int controller_show(struct seq_file *seq, void *v)
+{
+	struct capi_ctr *ctr = *(struct capi_ctr **) v;
+
+	if (!ctr)
+		return 0;
+
+	seq_printf(seq, "%d %-10s %-8s %-16s %s\n",
+		   ctr->cnr, ctr->driver_name,
+		   cardstate2str(ctr->cardstate),
+		   ctr->name,
+		   ctr->procinfo ?  ctr->procinfo(ctr) : "");
+
+	return 0;
+}
+
+static int contrstats_show(struct seq_file *seq, void *v)
+{
+	struct capi_ctr *ctr = *(struct capi_ctr **) v;
+
+	if (!ctr)
+		return 0;
+
+	seq_printf(seq, "%d %lu %lu %lu %lu\n",
+		   ctr->cnr, 
+		   ctr->nrecvctlpkt,
+		   ctr->nrecvdatapkt,
+		   ctr->nsentctlpkt,
+		   ctr->nsentdatapkt);
+
+	return 0;
+}
+
+struct seq_operations seq_controller_ops = {
+	.start	= controller_start,
+	.next	= controller_next,
+	.stop	= controller_stop,
+	.show	= controller_show,
+};
+
+struct seq_operations seq_contrstats_ops = {
+	.start	= controller_start,
+	.next	= controller_next,
+	.stop	= controller_stop,
+	.show	= contrstats_show,
+};
+
+static int seq_controller_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &seq_controller_ops);
+}
+
+static int seq_contrstats_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &seq_contrstats_ops);
+}
+
+static struct file_operations proc_controller_ops = {
+	.open		= seq_controller_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
+static struct file_operations proc_contrstats_ops = {
+	.open		= seq_contrstats_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
+// /proc/capi/applications: 
+//      applid l3cnt dblkcnt dblklen #ncci recvqueuelen
+// /proc/capi/applstats: 
+//      applid nrecvctlpkt nrecvdatapkt nsentctlpkt nsentdatapkt
+// ---------------------------------------------------------------------------
+
+static void *
+applications_start(struct seq_file *seq, loff_t *pos)
+{
+	if (*pos < CAPI_MAXAPPL)
+		return &capi_applications[*pos];
+
+	return NULL;
+}
+
+static void *
+applications_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+	++*pos;
+	if (*pos < CAPI_MAXAPPL)
+		return &capi_applications[*pos];
+
+	return NULL;
+}
+
+static void
+applications_stop(struct seq_file *seq, void *v)
+{
+}
+
+static int
+applications_show(struct seq_file *seq, void *v)
+{
+	struct capi20_appl *ap = *(struct capi20_appl **) v;
+
+	if (!ap)
+		return 0;
+
+	seq_printf(seq, "%u %d %d %d\n",
+		   ap->applid,
+		   ap->rparam.level3cnt,
+		   ap->rparam.datablkcnt,
+		   ap->rparam.datablklen);
+
+	return 0;
+}
+
+static int
+applstats_show(struct seq_file *seq, void *v)
+{
+	struct capi20_appl *ap = *(struct capi20_appl **) v;
+
+	if (!ap)
+		return 0;
+
+	seq_printf(seq, "%u %lu %lu %lu %lu\n",
+		   ap->applid,
+		   ap->nrecvctlpkt,
+		   ap->nrecvdatapkt,
+		   ap->nsentctlpkt,
+		   ap->nsentdatapkt);
+
+	return 0;
+}
+
+struct seq_operations seq_applications_ops = {
+	.start	= applications_start,
+	.next	= applications_next,
+	.stop	= applications_stop,
+	.show	= applications_show,
+};
+
+struct seq_operations seq_applstats_ops = {
+	.start	= applications_start,
+	.next	= applications_next,
+	.stop	= applications_stop,
+	.show	= applstats_show,
+};
+
+static int
+seq_applications_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &seq_applications_ops);
+}
+
+static int
+seq_applstats_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &seq_applstats_ops);
+}
+
+static struct file_operations proc_applications_ops = {
+	.open		= seq_applications_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
+static struct file_operations proc_applstats_ops = {
+	.open		= seq_applstats_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
+static void
+create_seq_entry(char *name, mode_t mode, struct file_operations *f)
+{
+	struct proc_dir_entry *entry;
+	entry = create_proc_entry(name, mode, NULL);
+	if (entry)
+		entry->proc_fops = f;
+}
+
+// ---------------------------------------------------------------------------
+
+
+static __inline__ struct capi_driver *capi_driver_get_idx(loff_t pos)
+{
+	struct capi_driver *drv = NULL;
+	struct list_head *l;
+	loff_t i;
+
+	i = 0;
+	list_for_each(l, &capi_drivers) {
+		drv = list_entry(l, struct capi_driver, list);
+		if (i++ == pos)
+			return drv;
+	}
+	return NULL;
+}
+
+static void *capi_driver_start(struct seq_file *seq, loff_t *pos)
+{
+	struct capi_driver *drv;
+	read_lock(&capi_drivers_list_lock);
+	drv = capi_driver_get_idx(*pos);
+	return drv;
+}
+
+static void *capi_driver_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+	struct capi_driver *drv = (struct capi_driver *)v;
+	++*pos;
+	if (drv->list.next == &capi_drivers) return NULL;
+	return list_entry(drv->list.next, struct capi_driver, list);
+}
+
+static void capi_driver_stop(struct seq_file *seq, void *v)
+{
+	read_unlock(&capi_drivers_list_lock);
+}
+
+static int capi_driver_show(struct seq_file *seq, void *v)
+{
+	struct capi_driver *drv = (struct capi_driver *)v;
+	seq_printf(seq, "%-32s %s\n", drv->name, drv->revision);
+	return 0;
+}
+
+struct seq_operations seq_capi_driver_ops = {
+	.start	= capi_driver_start,
+	.next	= capi_driver_next,
+	.stop	= capi_driver_stop,
+	.show	= capi_driver_show,
+};
+
+static int
+seq_capi_driver_open(struct inode *inode, struct file *file)
+{
+	int err;
+	err = seq_open(file, &seq_capi_driver_ops);
+	return err;
+}
+
+static struct file_operations proc_driver_ops = {
+	.open		= seq_capi_driver_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
+// ---------------------------------------------------------------------------
+
+void __init 
+kcapi_proc_init(void)
+{
+	proc_mkdir("capi",             NULL);
+	proc_mkdir("capi/controllers", NULL);
+	create_seq_entry("capi/controller",   0, &proc_controller_ops);
+	create_seq_entry("capi/contrstats",   0, &proc_contrstats_ops);
+	create_seq_entry("capi/applications", 0, &proc_applications_ops);
+	create_seq_entry("capi/applstats",    0, &proc_applstats_ops);
+	create_seq_entry("capi/driver",       0, &proc_driver_ops);
+}
+
+void __exit
+kcapi_proc_exit(void)
+{
+	remove_proc_entry("capi/driver",       NULL);
+	remove_proc_entry("capi/controller",   NULL);
+	remove_proc_entry("capi/contrstats",   NULL);
+	remove_proc_entry("capi/applications", NULL);
+	remove_proc_entry("capi/applstats",    NULL);
+	remove_proc_entry("capi/controllers",  NULL);
+	remove_proc_entry("capi",              NULL);
+}