patch-2.0.31 linux/drivers/isdn/avmb1/capidrv.c

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diff -u --recursive --new-file v2.0.30/linux/drivers/isdn/avmb1/capidrv.c linux/drivers/isdn/avmb1/capidrv.c
@@ -0,0 +1,1767 @@
+/*
+ * $Id: capidrv.c,v 1.3.2.1 1997/07/13 12:16:48 calle Exp $
+ *
+ * ISDN4Linux Driver, using capi20 interface (kernelcapi)
+ *
+ * Copyright 1997 by Carsten Paeth (calle@calle.in-berlin.de)
+ *
+ * $Log: capidrv.c,v $
+ * Revision 1.3.2.1  1997/07/13 12:16:48  calle
+ * bug fix for more than one controller in connect_req.
+ *
+ * Revision 1.3  1997/05/18 09:24:15  calle
+ * added verbose disconnect reason reporting to avmb1.
+ * some fixes in capi20 interface.
+ * changed info messages for B1-PCI
+ *
+ * Revision 1.2  1997/03/05 21:19:59  fritz
+ * Removed include of config.h (mkdep stated this is unneded).
+ *
+ * Revision 1.1  1997/03/04 21:50:31  calle
+ * Frirst version in isdn4linux
+ *
+ * Revision 2.2  1997/02/12 09:31:39  calle
+ * new version
+ *
+ * Revision 1.1  1997/01/31 10:32:20  calle
+ * Initial revision
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/major.h>
+#include <linux/sched.h>
+#include <linux/malloc.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/capi.h>
+#include <linux/kernelcapi.h>
+
+#include "compat.h"
+#include "capiutil.h"
+#include "capicmd.h"
+#include "capidrv.h"
+
+static char *revision = "$Revision: 1.3.2.1 $";
+int debugmode = 0;
+
+#ifdef HAS_NEW_SYMTAB
+MODULE_AUTHOR("Carsten Paeth <calle@calle.in-berlin.de>");
+MODULE_PARM(debugmode, "i");
+#endif
+
+/* -------- type definitions ----------------------------------------- */
+
+
+struct capidrv_contr {
+
+	struct capidrv_contr *next;
+
+	__u32 contrnr;
+	char name[20];
+
+	/*
+	 * for isdn4linux
+	 */
+	isdn_if interface;
+	int myid;
+
+	/*
+	 * LISTEN state
+	 */
+	int state;
+	__u32 cipmask;
+	__u32 cipmask2;
+
+	/*
+	 * 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;
+			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;
+			} *ncci_list;
+		} *plcip;
+		struct capidrv_ncci *nccip;
+	} *bchans;
+
+	struct capidrv_plci *plci_list;
+};
+
+struct capidrv_data {
+	__u16 appid;
+	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 struct capi_interface *capifuncs;
+
+/* -------- 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;
+	}
+}
+
+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:
+		return 1;
+	case ISDN_PROTO_L2_TRANS:
+		return 0;
+	}
+}
+
+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:
+	default:
+		return 0;
+	}
+}
+
+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 managment ------------------------------------- */
+
+static inline capidrv_contr *findcontrbydriverid(int driverid)
+{
+	capidrv_contr *p = global.contr_list;
+
+	while (p) {
+		if (p->myid == driverid)
+			return p;
+		p = p->next;
+	}
+	return (capidrv_contr *) 0;
+}
+
+static capidrv_contr *findcontrbynumber(__u32 contr)
+{
+	capidrv_contr *p = global.contr_list;
+
+	while (p) {
+		if (p->contrnr == contr)
+			return p;
+		p = p->next;
+	}
+	return (capidrv_contr *) 0;
+}
+
+
+/* -------- 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 0;
+
+	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 0;
+}
+
+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 0;
+}
+
+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 0;
+}
+
+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 = 0;
+			card->bchans[plcip->chan].disconnecting = 0;
+			card->bchans[plcip->chan].incoming = 0;
+			kfree(plcip);
+			return;
+		}
+	}
+	printk(KERN_ERR "capidrv: free_plci %p (0x%x) not found, Huh?\n",
+	       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 0;
+
+	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 0;
+
+	for (p = plcip->ncci_list; p; p = p->next)
+		if (p->ncci == ncci)
+			return p;
+	return 0;
+}
+
+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 0;
+
+	for (p = plcip->ncci_list; p; p = p->next)
+		if (p->msgid == msgid)
+			return p;
+	return 0;
+}
+
+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 = 0;
+	kfree(nccip);
+}
+
+/* -------- 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 = dev_alloc_skb(len);
+        SET_SKB_FREE(skb);
+	memcpy(skb_put(skb, len), cmsg->buf, len);
+	(*capifuncs->capi_put_message) (global.appid, 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: listen_change_state %d -> %d\n",
+				       card->state, p->nextstate);
+			card->state = p->nextstate;
+			return;
+		}
+		p++;
+	}
+	printk(KERN_ERR "capidrv: listen_change_state state=%d event=%d ????\n",
+	       card->state, event);
+
+}
+
+/* ------------------------------------------------------------------ */
+
+static void p0(capidrv_contr * card, capidrv_plci * plci)
+{
+	isdn_ctrl cmd;
+
+	card->bchans[plci->chan].contr = 0;
+	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, 0},
+	{ST_PLCI_NONE, ST_PLCI_ALLOCATED, EV_PLCI_FACILITY_IND_UP, 0},
+	{ST_PLCI_NONE, ST_PLCI_INCOMING, EV_PLCI_CONNECT_IND, 0},
+  /* 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, 0},
+    {ST_PLCI_OUTGOING, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, 0},
+ {ST_PLCI_OUTGOING, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, 0},
+  /* P-1 */
+      {ST_PLCI_ALLOCATED, ST_PLCI_ACTIVE, EV_PLCI_CONNECT_ACTIVE_IND, 0},
+   {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, 0},
+{ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, 0},
+    {ST_PLCI_ALLOCATED, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, 0},
+  /* P-ACT */
+      {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, 0},
+   {ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, 0},
+	{ST_PLCI_ACTIVE, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, 0},
+  /* P-2 */
+    {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_CONNECT_REJECT, 0},
+    {ST_PLCI_INCOMING, ST_PLCI_FACILITY_IND, EV_PLCI_FACILITY_IND_UP, 0},
+	{ST_PLCI_INCOMING, ST_PLCI_ACCEPTING, EV_PLCI_CONNECT_RESP, 0},
+    {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, 0},
+ {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, 0},
+     {ST_PLCI_INCOMING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, 0},
+  /* P-3 */
+{ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_CONNECT_REJECT, 0},
+{ST_PLCI_FACILITY_IND, ST_PLCI_ACCEPTING, EV_PLCI_CONNECT_ACTIVE_IND, 0},
+{ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, 0},
+	{ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, 0},
+ {ST_PLCI_FACILITY_IND, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, 0},
+  /* P-4 */
+      {ST_PLCI_ACCEPTING, ST_PLCI_ACTIVE, EV_PLCI_CONNECT_ACTIVE_IND, 0},
+   {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTING, EV_PLCI_DISCONNECT_REQ, 0},
+{ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTING, EV_PLCI_FACILITY_IND_DOWN, 0},
+    {ST_PLCI_ACCEPTING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, 0},
+  /* P-5 */
+{ST_PLCI_DISCONNECTING, ST_PLCI_DISCONNECTED, EV_PLCI_DISCONNECT_IND, 0},
+  /* P-6 */
+	{ST_PLCI_DISCONNECTED, ST_PLCI_NONE, EV_PLCI_DISCONNECT_RESP, p0},
+	{},
+};
+
+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: plci_change_state:0x%x %d -> %d\n",
+				  plci->plci, plci->state, p->nextstate);
+			plci->state = p->nextstate;
+			if (p->changefunc)
+				p->changefunc(card, plci);
+			return;
+		}
+		p++;
+	}
+	printk(KERN_ERR "capidrv: plci_change_state:0x%x state=%d event=%d ????\n",
+	       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.appid,
+				 card->msgid++,
+				 ncci->plcip->plci,
+				 0,	/* BChannelinformation */
+				 0,	/* Keypadfacility */
+				 0,	/* Useruserdata */
+				 0	/* 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, 0},
+	{ST_NCCI_NONE, ST_NCCI_INCOMING, EV_NCCI_CONNECT_B3_IND, 0},
+  /* N-0.1 */
+    {ST_NCCI_OUTGOING, ST_NCCI_ALLOCATED, EV_NCCI_CONNECT_B3_CONF_OK, 0},
+      {ST_NCCI_OUTGOING, ST_NCCI_NONE, EV_NCCI_CONNECT_B3_CONF_ERROR, 0},
+  /* N-1 */
+ {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTING, EV_NCCI_CONNECT_B3_REJECT, 0},
+	{ST_NCCI_INCOMING, ST_NCCI_ALLOCATED, EV_NCCI_CONNECT_B3_RESP, 0},
+  {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, 0},
+ {ST_NCCI_INCOMING, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, 0},
+  /* N-2 */
+   {ST_NCCI_ALLOCATED, ST_NCCI_ACTIVE, EV_NCCI_CONNECT_B3_ACTIVE_IND, 0},
+ {ST_NCCI_ALLOCATED, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, 0},
+{ST_NCCI_ALLOCATED, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, 0},
+  /* N-ACT */
+	{ST_NCCI_ACTIVE, ST_NCCI_RESETING, EV_NCCI_RESET_B3_REQ, 0},
+    {ST_NCCI_ACTIVE, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, 0},
+   {ST_NCCI_ACTIVE, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, 0},
+  /* N-3 */
+	{ST_NCCI_RESETING, ST_NCCI_ACTIVE, EV_NCCI_RESET_B3_IND, 0},
+  {ST_NCCI_RESETING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, 0},
+ {ST_NCCI_RESETING, ST_NCCI_DISCONNECTING, EV_NCCI_DISCONNECT_B3_REQ, 0},
+  /* N-4 */
+	{ST_NCCI_DISCONNECTING, ST_NCCI_DISCONNECTED, EV_NCCI_DISCONNECT_B3_IND, 0},
+	{ST_NCCI_DISCONNECTING, ST_NCCI_PREVIOUS, EV_NCCI_DISCONNECT_B3_CONF_ERROR, 0},
+  /* 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: ncci_change_state:0x%x %d -> %d\n",
+				  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: ncci_change_state:0x%x state=%d event=%d ????\n",
+	       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: listenconf Info=0x%4x (%s) cipmask=0x%x\n",
+			       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 */
+		goto ignored;
+	case CAPI_MANUFACTURER_CONF:	/* Controller */
+		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: got %s from controller 0x%x ???",
+		       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+		       cmsg->adr.adrController);
+	}
+	return;
+
+      ignored:
+	printk(KERN_INFO "capidrv: %s from controller 0x%x ignored\n",
+	       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: incoming call on not existing bchan ?\n");
+		return;
+	}
+	bchan = &card->bchans[chan];
+	if ((plcip = new_plci(card, chan)) == 0) {
+		printk(KERN_ERR "capidrv: incoming call: no memory, sorry.\n");
+		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: incoming call %s,%d,%d,%s\n", 
+			cmd.parm.setup.phone,
+			cmd.parm.setup.si1,
+			cmd.parm.setup.si2,
+			cmd.parm.setup.eazmsn);
+
+	switch (card->interface.statcallb(&cmd)) {
+	case 0:
+		/* 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: incoming call %s,%d,%d,%s ignored\n",
+			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: incoming call %s,%d,%d,%s tty alerting\n",
+				cmd.parm.setup.phone,
+				cmd.parm.setup.si1,
+				cmd.parm.setup.si2,
+				cmd.parm.setup.eazmsn);
+			capi_fill_ALERT_REQ(cmsg,
+					    global.appid,
+					    card->msgid++,
+					    plcip->plci,	/* adr */
+					    0,	/* BChannelinformation */
+					    0,	/* Keypadfacility */
+					    0,	/* Useruserdata */
+					    0	/* Facilitydataarray */
+			);
+			plcip->msgid = cmsg->Messagenumber;
+			send_message(card, cmsg);
+		} else {
+			printk(KERN_INFO "capidrv: incoming call %s,%d,%d,%s on netdev\n",
+				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: %s reason 0x%x (%s) for plci 0x%x\n",
+			   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: %s info 0x%x (%s) for plci 0x%x\n",
+			   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: %s info 0x%x (%s) for plci 0x%x\n",
+			   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: %s info 0x%x (%s) for plci 0x%x\n",
+			   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: no mem for ncci, sorry\n");
+				break;	/* $$$$ */
+			}
+			capi_fill_CONNECT_B3_REQ(cmsg,
+						 global.appid,
+						 card->msgid++,
+						 plcip->plci,	/* adr */
+						 0	/* 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: %s\n", 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: got %s for plci 0x%x ???",
+		       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+		       cmsg->adr.adrPLCI);
+	}
+	return;
+      ignored:
+	printk(KERN_INFO "capidrv: %s for plci 0x%x ignored\n",
+	       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+	       cmsg->adr.adrPLCI);
+	return;
+      notfound:
+	printk(KERN_ERR "capidrv: %s: plci 0x%x not found\n",
+	       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;
+
+	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: chan %d up with ncci 0x%x\n",
+		       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.appid,
+							  card->msgid++,
+							  nccip->ncci,	/* adr */
+							  0,	/* Reject */
+							  0	/* NCPI */
+				);
+				send_message(card, cmsg);
+				ncci_change_state(card, nccip, EV_NCCI_CONNECT_B3_RESP);
+				break;
+			}
+			printk(KERN_ERR "capidrv: no mem for ncci, sorry\n");
+		} else {
+			printk(KERN_ERR "capidrv: %s: plci for ncci 0x%x not found\n",
+			   capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+			       cmsg->adr.adrNCCI);
+		}
+		capi_fill_CONNECT_B3_RESP(cmsg,
+					  global.appid,
+					  card->msgid++,
+					  cmsg->adr.adrNCCI,
+					  2,	/* Reject */
+					  0	/* 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: %s info 0x%x (%s) for ncci 0x%x\n",
+			   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 (!(nccip = find_ncci(card, cmsg->adr.adrNCCI)))
+			goto notfound;
+
+		cmd.command = ISDN_STAT_BSENT;
+		cmd.driver = card->myid;
+		cmd.arg = nccip->chan;
+		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: %s info 0x%x (%s) for ncci 0x%x\n",
+			   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 */
+		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: got %s for ncci 0x%x ???",
+		       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+		       cmsg->adr.adrNCCI);
+	}
+	return;
+      ignored:
+	printk(KERN_INFO "capidrv: %s for ncci 0x%x ignored\n",
+	       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+	       cmsg->adr.adrNCCI);
+	return;
+      notfound:
+	printk(KERN_ERR "capidrv: %s: ncci 0x%x not found\n",
+	       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);
+		return;
+	}
+	if (!(nccip = find_ncci(card, cmsg->adr.adrNCCI))) {
+		printk(KERN_ERR "capidrv: %s: ncci 0x%x not found\n",
+		       capi_cmd2str(cmsg->Command, cmsg->Subcommand),
+		       cmsg->adr.adrNCCI);
+		kfree_skb(skb, FREE_READ);
+		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_signal(__u16 applid, __u32 dummy)
+{
+	struct sk_buff *skb = 0;
+
+	while ((*capifuncs->capi_get_message) (global.appid, &skb) == CAPI_NOERROR) {
+		capi_message2cmsg(&s_cmsg, skb->data);
+		if (debugmode > 1)
+			printk(KERN_DEBUG "capidrv_signal: %s\n", capi_cmsg2str(&s_cmsg));
+
+		if (s_cmsg.Command == CAPI_DATA_B3
+		    && s_cmsg.Subcommand == CAPI_IND) {
+			handle_data(&s_cmsg, skb);
+			continue;
+		}
+		kfree_skb(skb, FREE_READ);
+		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);
+	}
+}
+
+/* ------------------------------------------------------------------- */
+
+static _cmsg cmdcmsg;
+
+static int capidrv_ioctl(isdn_ctrl * c, capidrv_contr * card)
+{
+	switch (c->arg) {
+	default:
+		printk(KERN_DEBUG "capidrv: capidrv_ioctl(%ld) called ??\n", c->arg);
+		return -EINVAL;
+	}
+	return -EINVAL;
+}
+
+static int capidrv_command(isdn_ctrl * c, capidrv_contr * card)
+{
+	isdn_ctrl cmd;
+	struct capidrv_bchan *bchan;
+	struct capidrv_plci *plcip;
+
+	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: ISDN_CMD_DIAL(ch=%ld,\"%s,%d,%d,%s\")\n",
+					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: dail ch=%ld,\"%s,%d,%d,%s\" in use (plci=0x%x)\n",
+			        	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));
+
+			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.appid,
+					      card->msgid++,
+					      card->contrnr,	/* adr */
+					  si2cip(bchan->si1, bchan->si2),	/* cipvalue */
+					      called,	/* CalledPartyNumber */
+					      calling,	/* CallingPartyNumber */
+					      0,	/* CalledPartySubaddress */
+					      0,	/* CallingPartySubaddress */
+					    b1prot(bchan->l2, bchan->l3),	/* B1protocol */
+					    b2prot(bchan->l2, bchan->l3),	/* B2protocol */
+					    b3prot(bchan->l2, bchan->l3),	/* B3protocol */
+					      0,	/* B1configuration */
+					      0,	/* B2configuration */
+					      0,	/* B3configuration */
+					      0,	/* BC */
+					      0,	/* LLC */
+					      0,	/* HLC */
+					      0,	/* BChannelinformation */
+					      0,	/* Keypadfacility */
+					      0,	/* Useruserdata */
+					      0		/* 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;
+			plci_change_state(card, plcip, EV_PLCI_CONNECT_REQ);
+			send_message(card, &cmdcmsg);
+			return 0;
+		}
+
+	case ISDN_CMD_ACCEPTD:
+
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv: ISDN_CMD_ACCEPTD(ch=%ld)\n",
+			       c->arg);
+		bchan = &card->bchans[c->arg % card->nbchan];
+
+		capi_fill_CONNECT_RESP(&cmdcmsg,
+				       global.appid,
+				       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 */
+				       0,	/* B1configuration */
+				       0,	/* B2configuration */
+				       0,	/* B3configuration */
+				       0,	/* ConnectedNumber */
+				       0,	/* ConnectedSubaddress */
+				       0,	/* LLC */
+				       0,	/* BChannelinformation */
+				       0,	/* Keypadfacility */
+				       0,	/* Useruserdata */
+				       0	/* 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: ISDN_CMD_ACCEPTB(ch=%ld)\n",
+			       c->arg);
+		return -ENOSYS;
+
+	case ISDN_CMD_HANGUP:
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv: ISDN_CMD_HANGUP(ch=%ld)\n",
+			       c->arg);
+		bchan = &card->bchans[c->arg % card->nbchan];
+
+		if (bchan->disconnecting) {
+			if (debugmode)
+				printk(KERN_DEBUG "capidrv: chan %ld already disconnecting ...\n",
+				       c->arg);
+			return 0;
+		}
+		if (bchan->nccip) {
+			bchan->disconnecting = 1;
+			capi_fill_DISCONNECT_B3_REQ(&cmdcmsg,
+						    global.appid,
+						    card->msgid++,
+						    bchan->nccip->ncci,
+						    0	/* NCPI */
+			);
+			ncci_change_state(card, bchan->nccip, EV_NCCI_DISCONNECT_B3_REQ);
+			send_message(card, &cmdcmsg);
+		} else if (bchan->plcip) {
+			bchan->disconnecting = 1;
+			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
+				 */
+			} else {
+				capi_fill_DISCONNECT_REQ(&cmdcmsg,
+							 global.appid,
+							 card->msgid++,
+						      bchan->plcip->plci,
+							 0,	/* BChannelinformation */
+							 0,	/* Keypadfacility */
+							 0,	/* Useruserdata */
+							 0	/* Facilitydataarray */
+				);
+				plci_change_state(card, bchan->plcip, EV_PLCI_DISCONNECT_REQ);
+				send_message(card, &cmdcmsg);
+			}
+		}
+/* ready */
+
+	case ISDN_CMD_SETL2:
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv: set L2 on chan %ld to %ld\n",
+			       (c->arg & 0xff), (c->arg >> 8));
+		bchan = &card->bchans[c->arg % card->nbchan];
+		bchan->l2 = (c->arg >> 8);
+		return 0;
+
+	case ISDN_CMD_SETL3:
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv: set L3 on chan %ld to %ld\n",
+			       (c->arg & 0xff), (c->arg >> 8));
+		bchan = &card->bchans[c->arg % card->nbchan];
+		bchan->l3 = (c->arg >> 8);
+		return 0;
+
+	case ISDN_CMD_SETEAZ:
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv: set EAZ \"%s\" on chan %ld\n",
+			       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: clearing EAZ on chan %ld\n", c->arg);
+		bchan = &card->bchans[c->arg % card->nbchan];
+		bchan->msn[0] = 0;
+		return 0;
+
+	case ISDN_CMD_LOCK:
+		if (debugmode > 1)
+			printk(KERN_DEBUG "capidrv: ISDN_CMD_LOCK (%ld)\n", c->arg);
+		MOD_INC_USE_COUNT;
+		break;
+
+	case ISDN_CMD_UNLOCK:
+		if (debugmode > 1)
+			printk(KERN_DEBUG "capidrv: ISDN_CMD_UNLOCK (%ld)\n", c->arg);
+		MOD_DEC_USE_COUNT;
+		break;
+
+/* never called */
+	case ISDN_CMD_GETL2:
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv: ISDN_CMD_GETL2\n");
+		return -ENODEV;
+	case ISDN_CMD_GETL3:
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv: ISDN_CMD_GETL3\n");
+		return -ENODEV;
+	case ISDN_CMD_GETEAZ:
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv: ISDN_CMD_GETEAZ\n");
+		return -ENODEV;
+	case ISDN_CMD_SETSIL:
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv: ISDN_CMD_SETSIL\n");
+		return -ENODEV;
+	case ISDN_CMD_GETSIL:
+		if (debugmode)
+			printk(KERN_DEBUG "capidrv: ISDN_CMD_GETSIL\n");
+		return -ENODEV;
+	default:
+		printk(KERN_ERR "capidrv: ISDN_CMD_%d, Huh?\n", 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, struct sk_buff *skb)
+{
+	capidrv_contr *card = findcontrbydriverid(id);
+	capidrv_bchan *bchan;
+	capidrv_ncci *nccip;
+	int len = skb->len;
+	size_t msglen;
+	__u16 errcode;
+
+	if (!card) {
+		printk(KERN_ERR "capidrv: if_sendbuf called with invalid driverId %d!\n",
+		       id);
+		return 0;
+	}
+	bchan = &card->bchans[channel % card->nbchan];
+	nccip = bchan->nccip;
+	if (!nccip || nccip->state != ST_NCCI_ACTIVE) {
+		printk(KERN_ERR "capidrv: if_sendbuf: %s:%d: chan not up!\n",
+		       card->name, channel);
+		return 0;
+	}
+	capi_fill_DATA_B3_REQ(&sendcmsg, global.appid, card->msgid++,
+			      nccip->ncci,	/* adr */
+			      (__u32) skb->data,	/* Data */
+			      skb->len,		/* DataLength */
+			      nccip->datahandle++,	/* DataHandle */
+			      0	/* Flags */
+	    );
+	capi_cmsg2message(&sendcmsg, sendcmsg.buf);
+	msglen = CAPIMSG_LEN(sendcmsg.buf);
+	if (skb_headroom(skb) < msglen) {
+		struct sk_buff *nskb = dev_alloc_skb(msglen + skb->len);
+		if (!nskb) {
+			printk(KERN_ERR "capidrv: if_sendbuf: no memory\n");
+			return 0;
+		}
+#if 0
+		printk(KERN_DEBUG "capidrv: only %d bytes headroom\n",
+		       skb_headroom(skb));
+#endif
+                SET_SKB_FREE(nskb);
+		memcpy(skb_put(nskb, msglen), sendcmsg.buf, msglen);
+		memcpy(skb_put(nskb, skb->len), skb->data, skb->len);
+		errcode = (*capifuncs->capi_put_message) (global.appid, nskb);
+		switch (errcode) {
+		case CAPI_NOERROR:
+			dev_kfree_skb(skb, FREE_WRITE);
+			return len;
+		case CAPI_SENDQUEUEFULL:
+			dev_kfree_skb(nskb, FREE_WRITE);
+			return 0;
+		default:
+			return -1;
+		}
+	} else {
+		memcpy(skb_push(skb, msglen), sendcmsg.buf, msglen);
+		errcode = (*capifuncs->capi_put_message) (global.appid, skb);
+		switch (errcode) {
+		case CAPI_NOERROR:
+			return len;
+		case CAPI_SENDQUEUEFULL:
+			return 0;
+		default:
+			return -1;
+		}
+	}
+}
+
+static int capidrv_addcontr(__u16 contr, struct capi_profile *profp)
+{
+	capidrv_contr *card;
+	isdn_ctrl cmd;
+	char id[20];
+	int i;
+
+	sprintf(id, "capidrv-%d", contr);
+	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));
+	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);
+		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 = 0;
+	card->interface.readstat = 0;
+	card->interface.features = ISDN_FEATURE_L2_X75I |
+	    ISDN_FEATURE_L2_X75UI |
+	    ISDN_FEATURE_L2_X75BUI |
+	    ISDN_FEATURE_L2_HDLC |
+	    ISDN_FEATURE_L2_TRANS |
+	    ISDN_FEATURE_L3_TRANS |
+	    ISDN_FEATURE_P_UNKNOWN;
+	card->interface.hl_hdrlen = 22; /* len of DATA_B3_REQ */
+	strncpy(card->interface.id, id, sizeof(card->interface.id) - 1);
+	card->next = global.contr_list;
+	global.contr_list = card;
+	global.ncontr++;
+
+	if (!register_isdn(&card->interface)) {
+		global.contr_list = global.contr_list->next;
+		printk(KERN_ERR "capidrv: Unable to register contr %s\n", id);
+		kfree(card->bchans);
+		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;
+	}
+
+	cmd.driver = card->myid;
+	cmd.command = ISDN_STAT_RUN;
+	card->interface.statcallb(&cmd);
+
+	card->cipmask = 1;	/* any */
+	card->cipmask2 = 0;
+
+	capi_fill_LISTEN_REQ(&cmdcmsg, global.appid,
+			     card->msgid++,
+			     contr,	/* controller */
+			     1 << 6,	/* Infomask */
+			     card->cipmask,
+			     card->cipmask2,
+			     0, 0);
+	send_message(card, &cmdcmsg);
+	listen_change_state(card, EV_LISTEN_REQ);
+
+	printk(KERN_INFO "%s: now up (%d B channels)\n",
+		card->name, card->nbchan);
+
+	return 0;
+}
+
+static int capidrv_delcontr(__u16 contr)
+{
+	capidrv_contr **pp, *card;
+	isdn_ctrl cmd;
+	int i;
+
+	for (pp = &global.contr_list; *pp; pp = &(*pp)->next) {
+		if ((*pp)->contrnr == contr)
+			break;
+	}
+	if (!*pp) {
+		printk(KERN_ERR "capidrv: delcontr: no contr %u\n", contr);
+		return -1;
+	}
+	card = *pp;
+	*pp = (*pp)->next;
+	global.ncontr--;
+
+	for (i = 0; i < card->nbchan; i++) {
+		if (card->bchans[i].nccip)
+			free_ncci(card, card->bchans[i].nccip);
+		if (card->bchans[i].plcip)
+			free_plci(card, card->bchans[i].plcip);
+		if (card->plci_list)
+			printk(KERN_ERR "capidrv: bug in free_plci()\n");
+	}
+	kfree(card->bchans);
+
+	cmd.command = ISDN_STAT_UNLOAD;
+	cmd.driver = card->myid;
+	card->interface.statcallb(&cmd);
+
+	printk(KERN_INFO "%s: now down.\n", card->name);
+
+	kfree(card);
+
+	return 0;
+}
+
+
+static void lower_callback(unsigned int cmd, __u16 contr, void *data)
+{
+	switch (cmd) {
+	case KCI_CONTRUP:
+		(void) capidrv_addcontr(contr, (capi_profile *) data);
+		break;
+	case KCI_CONTRDOWN:
+		(void) capidrv_delcontr(contr);
+		break;
+	}
+}
+
+static struct capi_interface_user cuser = {
+	"capidrv",
+	lower_callback
+};
+
+#ifdef MODULE
+#define capidrv_init init_module
+#endif
+
+int capidrv_init(void)
+{
+	struct capi_register_params rparam;
+	capi_profile profile;
+	char rev[10];
+	char *p;
+	__u32 ncontr, contr;
+	__u16 errcode;
+
+	capifuncs = attach_capi_interface(&cuser);
+
+	if (!capifuncs)
+		return -EIO;
+
+#ifndef HAS_NEW_SYMTAB
+	/* No symbols to export, hide all symbols */
+	register_symtab(NULL);
+#endif
+
+	if ((p = strchr(revision, ':'))) {
+		strcpy(rev, p + 1);
+		p = strchr(rev, '$');
+		*p = 0;
+	} else
+		strcpy(rev, " ??? ");
+
+	rparam.level3cnt = 2;
+	rparam.datablkcnt = 8;
+	rparam.datablklen = 2048;
+	errcode = (*capifuncs->capi_register) (&rparam, &global.appid);
+	if (errcode) {
+		detach_capi_interface(&cuser);
+		return -EIO;
+	}
+
+	errcode = (*capifuncs->capi_get_profile) (0, &profile);
+	if (errcode != CAPI_NOERROR) {
+		(void) (*capifuncs->capi_release) (global.appid);
+		detach_capi_interface(&cuser);
+		return -EIO;
+	}
+
+	(void) (*capifuncs->capi_set_signal) (global.appid, capidrv_signal, 0);
+
+	ncontr = profile.ncontroller;
+	for (contr = 1; contr <= ncontr; contr++) {
+		errcode = (*capifuncs->capi_get_profile) (contr, &profile);
+		if (errcode != CAPI_NOERROR)
+			continue;
+		(void) capidrv_addcontr(contr, &profile);
+	}
+
+	return 0;
+}
+
+#ifdef MODULE
+void cleanup_module(void)
+{
+	capidrv_contr *card, *next;
+	char rev[10];
+	char *p;
+
+	if ((p = strchr(revision, ':'))) {
+		strcpy(rev, p + 1);
+		p = strchr(rev, '$');
+		*p = 0;
+	} else {
+		strcpy(rev, " ??? ");
+	}
+
+	for (card = global.contr_list; card; card = next) {
+		next = card->next;
+		capidrv_delcontr(card->contrnr);
+	}
+
+	(void) (*capifuncs->capi_release) (global.appid);
+	detach_capi_interface(&cuser);
+
+	printk(KERN_NOTICE "capidrv: Rev%s: unloaded\n", rev);
+}
+
+#endif

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TCL-scripts by Sam Shen, slshen@lbl.gov