Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 2315 insertions, 0 deletions

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);