patch-2.0.31 linux/drivers/isdn/teles/isdnl3.c

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diff -u --recursive --new-file v2.0.30/linux/drivers/isdn/teles/isdnl3.c linux/drivers/isdn/teles/isdnl3.c
@@ -1,663 +0,0 @@
-/* $Id: isdnl3.c,v 1.11 1996/09/29 19:41:58 fritz Exp $
- *
- * $Log: isdnl3.c,v $
- * Revision 1.11  1996/09/29 19:41:58  fritz
- * Bugfix: ignore unknown frames.
- *
- * Revision 1.10  1996/09/25 18:32:43  keil
- * response for STATUS_ENQ message added
- *
- * Revision 1.9  1996/06/06 14:22:27  fritz
- * Changed level of "non-digital call..." message, since
- * with audio support, this is quite normal.
- *
- * Revision 1.8  1996/06/03 20:35:04  fritz
- * Fixed typos.
- *
- * Revision 1.7  1996/06/03 20:03:39  fritz
- * Fixed typos.
- *
- * Revision 1.6  1996/05/21 11:33:50  keil
- * Adding SETUP_ACKNOWLEDGE as answer of a SETUP message.
- *
- * Revision 1.5  1996/05/18 01:37:16  fritz
- * Added spelling corrections and some minor changes
- * to stay in sync with kernel.
- *
- * Revision 1.4  1996/05/17 03:46:16  fritz
- * General cleanup.
- *
- * Revision 1.3  1996/04/30 21:57:53  isdn4dev
- * remove some debugging code, improve callback   Karsten Keil
- *
- * Revision 1.2  1996/04/20 16:45:05  fritz
- * Changed to report all incoming calls to Linklevel, not just those
- * with Service 7.
- * Misc. typos
- *
- * Revision 1.1  1996/04/13 10:24:45  fritz
- * Initial revision
- *
- *
- */
-#define __NO_VERSION__
-#define P_1TR6
-#include "teles.h"
-#include "l3_1TR6.h"
-#define DEBUG_1TR6 0
-
-static void
-i_down(struct PStack *st,
-       struct BufHeader *ibh)
-{
-	st->l3.l3l2(st, DL_DATA, ibh);
-}
-
-static void
-newl3state(struct PStack *st, int state)
-{
-	st->l3.state = state;
-	if (DEBUG_1TR6 > 4)
-		printk(KERN_INFO "isdnl3: bc:%d cr:%x new state %d\n",
-		       st->pa->bchannel, st->pa->callref, state);
-
-}
-
-static void
-l3_message(struct PStack *st, int mt)
-{
-	struct BufHeader *dibh;
-	byte           *p;
-	int             size;
-
-	BufPoolGet(&dibh, st->l1.sbufpool, GFP_ATOMIC, (void *) st, 18);
-	p = DATAPTR(dibh);
-	p += st->l2.ihsize;
-	size = st->l2.ihsize;
-
-	*p++ = 0x8;
-	*p++ = 0x1;
-	*p++ = st->l3.callref;
-	*p++ = mt;
-	size += 4;
-
-	dibh->datasize = size;
-	i_down(st, dibh);
-}
-
-static void
-l3s3(struct PStack *st, byte pr, void *arg)
-{
-	l3_message(st, MT_RELEASE);
-	newl3state(st, 19);
-}
-
-static void
-l3s4(struct PStack *st, byte pr, void *arg)
-{
-	struct BufHeader *ibh = arg;
-
-	BufPoolRelease(ibh);
-	newl3state(st, 0);
-	st->l3.l3l4(st, CC_RELEASE_CNF, NULL);
-}
-
-static void
-l3s4_1(struct PStack *st, byte pr, void *arg)
-{
-	struct BufHeader *ibh = arg;
-
-	BufPoolRelease(ibh);
-	newl3state(st, 19);
-	l3_message(st, MT_RELEASE);
-	st->l3.l3l4(st, CC_RELEASE_CNF, NULL);
-}
-
-static void
-l3s5(struct PStack *st, byte pr,
-     void *arg)
-{
-	struct BufHeader *dibh;
-	byte           *p;
-	char           *teln;
-
-	st->l3.callref = st->pa->callref;
-	BufPoolGet(&dibh, st->l1.sbufpool, GFP_ATOMIC, (void *) st, 19);
-	p = DATAPTR(dibh);
-	p += st->l2.ihsize;
-
-	*p++ = 0x8;
-	*p++ = 0x1;
-	*p++ = st->l3.callref;
-	*p++ = MT_SETUP;
-	*p++ = 0xa1;
-
-	/*
-         * Set Bearer Capability, Map info from 1TR6-convention to EDSS1
-         */
-	switch (st->pa->info) {
-	  case 1:		/* Telephony                               */
-		  *p++ = 0x4;	/* BC-IE-code                              */
-		  *p++ = 0x3;	/* Length                                  */
-		  *p++ = 0x90;	/* Coding Std. national, 3.1 kHz audio     */
-		  *p++ = 0x90;	/* Circuit-Mode 64kbps                     */
-		  *p++ = 0xa3;	/* A-Law Audio                             */
-		  break;
-	  case 5:		/* Datatransmission 64k, BTX               */
-	  case 7:		/* Datatransmission 64k                    */
-	  default:
-		  *p++ = 0x4;	/* BC-IE-code                              */
-		  *p++ = 0x2;	/* Length                                  */
-		  *p++ = 0x88;	/* Coding Std. nat., unrestr. dig. Inform. */
-		  *p++ = 0x90;	/* Packet-Mode 64kbps                      */
-		  break;
-	}
-	/*
-	 * What about info2? Mapping to High-Layer-Compatibility?
-	 */
-	if (st->pa->calling[0] != '\0') {
-		*p++ = 0x6c;
-		*p++ = strlen(st->pa->calling) + 1;
-		/* Classify as AnyPref. */
-		*p++ = 0x81;	/* Ext = '1'B, Type = '000'B, Plan = '0001'B. */
-		teln = st->pa->calling;
-		while (*teln)
-			*p++ = *teln++ & 0x7f;
-	}
-	*p++ = 0x70;
-	*p++ = strlen(st->pa->called) + 1;
-	/* Classify as AnyPref. */
-	*p++ = 0x81;		/* Ext = '1'B, Type = '000'B, Plan = '0001'B. */
-
-	teln = st->pa->called;
-	while (*teln)
-		*p++ = *teln++ & 0x7f;
-
-
-	dibh->datasize = p - DATAPTR(dibh);
-
-	newl3state(st, 1);
-	i_down(st, dibh);
-
-}
-
-static void
-l3s6(struct PStack *st, byte pr, void *arg)
-{
-	byte           *p;
-	struct BufHeader *ibh = arg;
-
-	p = DATAPTR(ibh);
-	if ((p = findie(p + st->l2.ihsize, ibh->datasize - st->l2.ihsize,
-			0x18, 0))) {
-		st->pa->bchannel = p[2] & 0x3;
-	} else
-		printk(KERN_WARNING "octect 3 not found\n");
-
-	BufPoolRelease(ibh);
-	newl3state(st, 3);
-	st->l3.l3l4(st, CC_PROCEEDING_IND, NULL);
-}
-
-static void
-l3s7(struct PStack *st, byte pr, void *arg)
-{
-	struct BufHeader *ibh = arg;
-
-	BufPoolRelease(ibh);
-	newl3state(st, 12);
-	st->l3.l3l4(st, CC_DISCONNECT_IND, NULL);
-}
-
-static void
-l3s8(struct PStack *st, byte pr, void *arg)
-{
-	struct BufHeader *ibh = arg;
-
-	BufPoolRelease(ibh);
-	st->l3.l3l4(st, CC_SETUP_CNF, NULL);
-	newl3state(st, 10);
-}
-
-static void
-l3s11(struct PStack *st, byte pr, void *arg)
-{
-	struct BufHeader *ibh = arg;
-
-	BufPoolRelease(ibh);
-	newl3state(st, 4);
-	st->l3.l3l4(st, CC_ALERTING_IND, NULL);
-}
-
-static void
-l3s12(struct PStack *st, byte pr, void *arg)
-{
-	byte           *p;
-	int		bcfound = 0;
-	struct BufHeader *ibh = arg;
-
-	p = DATAPTR(ibh);
-	p += st->l2.uihsize;
-	st->pa->callref = getcallref(p);
-	st->l3.callref = 0x80 + st->pa->callref;
-
-	/*
-         * Channel Identification
-         */
-	p = DATAPTR(ibh);
-	if ((p = findie(p + st->l2.uihsize, ibh->datasize - st->l2.uihsize,
-			0x18, 0))) {
-		st->pa->bchannel = p[2] & 0x3;
-		bcfound++ ;
-	} else
-		printk(KERN_WARNING "l3s12: Channel ident not found\n");
-
-	p = DATAPTR(ibh);
-	if (st->protocol == ISDN_PTYPE_1TR6) {
-		if ((p = findie(p + st->l2.uihsize, ibh->datasize - st->l2.uihsize, 0x01, 6))) {
-			st->pa->info = p[2];
-			st->pa->info2 = p[3];
-		} else
-			printk(KERN_WARNING "l3s12(1TR6): ServiceIndicator not found\n");
-	} else {
-		/*
-                 * Bearer Capabilities
-                 */
-		if ((p = findie(p + st->l2.uihsize, ibh->datasize - st->l2.uihsize, 0x04, 0))) {
-			switch (p[2] & 0x1f) {
-			  case 0x00:
-                                  /* Speech */
-			  case 0x10:
-                                  /* 3.1 Khz audio */
-				  st->pa->info = 1;
-				  break;
-			  case 0x08:
-                                  /* Unrestricted digital information */
-				  st->pa->info = 7;
-				  break;
-			  case 0x09:
-                                  /* Restricted digital information */
-				  st->pa->info = 2;
-				  break;
-			  case 0x11:
-                                  /* Unrestr. digital information  with tones/announcements */
-				  st->pa->info = 3;
-				  break;
-			  case 0x18:
-                                  /* Video */
-				  st->pa->info = 4;
-				  break;
-			  default:
-				  st->pa->info = 0;
-			}
-		} else
-			printk(KERN_WARNING "l3s12: Bearer capabilities not found\n");
-	}
-
-	p = DATAPTR(ibh);
-	if ((p = findie(p + st->l2.uihsize, ibh->datasize - st->l2.uihsize,
-			0x70, 0)))
-		iecpy(st->pa->called, p, 1);
-	else
-		strcpy(st->pa->called, "");
-
-	p = DATAPTR(ibh);
-	if ((p = findie(p + st->l2.uihsize, ibh->datasize - st->l2.uihsize,
-			0x6c, 0))) {
-		if (st->protocol == ISDN_PTYPE_1TR6)
-			iecpy(st->pa->calling, p, 1);
-		else
-			iecpy(st->pa->calling, p, 2);
-	} else
-		strcpy(st->pa->calling, "");
-	BufPoolRelease(ibh);
-
-        if (bcfound) {
-                if (st->pa->info != 7) {
-                        printk(KERN_DEBUG "non-digital call: %s -> %s\n",
-                               st->pa->calling,
-                               st->pa->called);
-                }
-                newl3state(st, 6);
-                st->l3.l3l4(st, CC_SETUP_IND, NULL);
-        }
-}
-
-static void
-l3s13(struct PStack *st, byte pr, void *arg)
-{
-	newl3state(st, 0);
-}
-
-static void
-l3s16(struct PStack *st, byte pr,
-      void *arg)
-{
-	st->l3.callref = 0x80 + st->pa->callref;
-	l3_message(st, MT_CONNECT);
-	newl3state(st, 8);
-}
-
-static void
-l3s17(struct PStack *st, byte pr, void *arg)
-{
-	struct BufHeader *ibh = arg;
-
-	BufPoolRelease(ibh);
-	st->l3.l3l4(st, CC_SETUP_COMPLETE_IND, NULL);
-	newl3state(st, 10);
-}
-
-static void
-l3s18(struct PStack *st, byte pr, void *arg)
-{
-	struct BufHeader *dibh;
-	byte           *p;
-	int             size;
-
-	BufPoolGet(&dibh, st->l1.sbufpool, GFP_ATOMIC, (void *) st, 20);
-	p = DATAPTR(dibh);
-	p += st->l2.ihsize;
-	size = st->l2.ihsize;
-
-	*p++ = 0x8;
-	*p++ = 0x1;
-	*p++ = st->l3.callref;
-	*p++ = MT_DISCONNECT;
-	size += 4;
-
-	*p++ = IE_CAUSE;
-	*p++ = 0x2;
-	*p++ = 0x80;
-	*p++ = 0x90;
-	size += 4;
-
-	dibh->datasize = size;
-	i_down(st, dibh);
-
-	newl3state(st, 11);
-}
-
-static void
-l3s19(struct PStack *st, byte pr, void *arg)
-{
-	struct BufHeader *ibh = arg;
-
-	BufPoolRelease(ibh);
-	newl3state(st, 0);
-	l3_message(st, MT_RELEASE_COMPLETE);
-	st->l3.l3l4(st, CC_RELEASE_IND, NULL);
-}
-
-static void
-l3s20(struct PStack *st, byte pr,
-      void *arg)
-{
-	l3_message(st, MT_ALERTING);
-	newl3state(st, 7);
-}
-
-static void
-l3s21(struct PStack *st, byte pr, void *arg)
-{
-	struct BufHeader *dibh=arg;
-	byte           *p;
-	int             size;
-
-	BufPoolRelease(dibh);
-	
-	BufPoolGet(&dibh, st->l1.sbufpool, GFP_ATOMIC, (void *) st, 20);
-	p = DATAPTR(dibh);
-	p += st->l2.ihsize;
-	size = st->l2.ihsize;
-
-	*p++ = 0x8;
-	*p++ = 0x1;
-	*p++ = st->l3.callref;
-	*p++ = MT_STATUS;
-	size += 4;
-
-	*p++ = IE_CAUSE;
-	*p++ = 0x2;
-	*p++ = 0x80;
-	*p++ = 0x9E; /* answer status enquire */
-	size += 4;
-
-	*p++ = 0x14; /* CallState */
-	*p++ = 0x1;
-	*p++ = st->l3.state & 0x3f; /* ISO L3 CallState */
-	size += 3;
-
-	dibh->datasize = size;
-	i_down(st, dibh);
-
-}
-
-struct stateentry {
-	int             state;
-	byte            primitive;
-	void            (*rout) (struct PStack *, byte, void *);
-};
-
-static struct stateentry downstatelist[] =
-{
-        {0,CC_SETUP_REQ,l3s5},
-        {1,CC_DISCONNECT_REQ,l3s18},
-        {1,CC_RELEASE_REQ,l3s3},
-        {1,CC_DLRL,l3s13},
-        {3,CC_DISCONNECT_REQ,l3s18},
-        {3,CC_RELEASE_REQ,l3s3},
-        {3,CC_DLRL,l3s13},
-        {4,CC_RELEASE_REQ,l3s3},
-        {4,CC_DISCONNECT_REQ,l3s18},
-        {4,CC_DLRL,l3s13},
-        {6,CC_RELEASE_REQ,l3s3},
-        {6,CC_DISCONNECT_REQ,l3s18},
-        {6,CC_ALERTING_REQ,l3s20},
-        {6,CC_DLRL,l3s13},
-        {7,CC_RELEASE_REQ,l3s3},
-        {7,CC_SETUP_RSP,l3s16},
-        {7,CC_DLRL,l3s13},
-        {8,CC_RELEASE_REQ,l3s3},
-        {8,CC_DISCONNECT_REQ,l3s18},
-        {8,CC_DLRL,l3s13},
-        {10,CC_DISCONNECT_REQ,l3s18},
-        {10,CC_RELEASE_REQ,l3s3},
-        {10,CC_DLRL,l3s13},
-        {11,CC_RELEASE_REQ,l3s3},
-        {12,CC_RELEASE_REQ,l3s3},
-        {19,CC_DLRL,l3s13},
-};
-
-static int      downsllen = sizeof(downstatelist) /
-sizeof(struct stateentry);
-
-static struct stateentry datastatelist[] =
-{
-        {0,MT_STATUS_ENQUIRY,l3s21},
-        {0,MT_SETUP,l3s12},
-        {1,MT_STATUS_ENQUIRY,l3s21},
-        {1,MT_CALL_PROCEEDING,l3s6},
-        {1,MT_SETUP_ACKNOWLEDGE,l3s6},
-        {1,MT_RELEASE_COMPLETE,l3s4},
-        {1,MT_RELEASE,l3s19},
-        {1,MT_DISCONNECT,l3s7},
-        {3,MT_STATUS_ENQUIRY,l3s21},
-        {3,MT_DISCONNECT,l3s7},
-        {3,MT_CONNECT,l3s8},
-        {3,MT_ALERTING,l3s11},
-        {3,MT_RELEASE,l3s19},
-        {3,MT_RELEASE_COMPLETE,l3s4},
-        {4,MT_STATUS_ENQUIRY,l3s21},
-        {4,MT_CONNECT,l3s8},
-        {4,MT_DISCONNECT,l3s7},
-        {4,MT_RELEASE,l3s19},
-        {4,MT_RELEASE_COMPLETE,l3s4},
-        {8,MT_STATUS_ENQUIRY,l3s21},
-        {6,MT_SETUP,l3s12},
-        {8,MT_STATUS_ENQUIRY,l3s21},
-        {7,MT_RELEASE,l3s19},
-        {7,MT_RELEASE_COMPLETE,l3s4_1},
-        {7,MT_DISCONNECT,l3s7},
-        {8,MT_STATUS_ENQUIRY,l3s21},
-        {8,MT_RELEASE,l3s19},
-        {8,MT_CONNECT_ACKNOWLEDGE,l3s17},
-        {8,MT_DISCONNECT,l3s7},
-        {8,MT_RELEASE_COMPLETE,l3s4_1},
-        {10,MT_STATUS_ENQUIRY,l3s21},
-        {10,MT_DISCONNECT,l3s7},
-        {10,MT_RELEASE,l3s19},
-        {10,MT_RELEASE_COMPLETE,l3s4_1},
-        {11,MT_STATUS_ENQUIRY,l3s21},
-        {11,MT_RELEASE,l3s19},
-        {11,MT_RELEASE_COMPLETE,l3s4},
-        {19,MT_STATUS_ENQUIRY,l3s21},
-        {19,MT_RELEASE_COMPLETE,l3s4},
-};
-
-static int      datasllen = sizeof(datastatelist) /
-sizeof(struct stateentry);
-
-#ifdef P_1TR6
-#include "l3_1TR6.c"
-#endif
-
-static void
-l3up(struct PStack *st,
-     int pr, void *arg)
-{
-	int             i, mt, size;
-	byte           *ptr;
-	struct BufHeader *ibh = arg;
-
-	if (pr == DL_DATA) {
-		ptr = DATAPTR(ibh);
-		ptr += st->l2.ihsize;
-		size = ibh->datasize - st->l2.ihsize;
-		mt = ptr[3];
-		switch (ptr[0]) {
-#ifdef P_1TR6
-		  case PROTO_DIS_N0:
-			  BufPoolRelease(ibh);
-			  break;
-		  case PROTO_DIS_N1:
-			  for (i = 0; i < datasl_1tr6t_len; i++)
-				  if ((st->l3.state == datastatelist_1tr6t[i].state) &&
-				      (mt == datastatelist_1tr6t[i].primitive))
-					  break;
-			  if (i == datasl_1tr6t_len) {
-				  BufPoolRelease(ibh);
-				  if (DEBUG_1TR6 > 0)
-					  printk(KERN_INFO "isdnl3up unhandled 1tr6 state %d MT %x\n",
-						 st->l3.state, mt);
-			  } else
-				  datastatelist_1tr6t[i].rout(st, pr, ibh);
-			  break;
-#endif
-		  case PROTO_EURO:	/* E-DSS1 */
-			  for (i = 0; i < datasllen; i++)
-				  if ((st->l3.state == datastatelist[i].state) &&
-				      (mt == datastatelist[i].primitive))
-					  break;
-			  if (i == datasllen) {
-				  BufPoolRelease(ibh);
-				  if (DEBUG_1TR6 > 0)
-			  	  	printk(KERN_INFO "isdnl3up unhandled E-DSS1 state %d MT %x\n",
-				 		st->l3.state, mt);
-			  } else
-				  datastatelist[i].rout(st, pr, ibh);
-			  break;
-		  default:
-		          BufPoolRelease(ibh);
-			  break;
-		}
-	} else if (pr == DL_UNIT_DATA) {
-		ptr = DATAPTR(ibh);
-		ptr += st->l2.uihsize;
-		size = ibh->datasize - st->l2.uihsize;
-		mt = ptr[3];
-		switch (ptr[0]) {
-#ifdef P_1TR6
-		  case PROTO_DIS_N0:
-			  BufPoolRelease(ibh);
-			  break;
-		  case PROTO_DIS_N1:
-			  for (i = 0; i < datasl_1tr6t_len; i++)
-				  if ((st->l3.state == datastatelist_1tr6t[i].state) &&
-				      (mt == datastatelist_1tr6t[i].primitive))
-					  break;
-			  if (i == datasl_1tr6t_len) {
-				  if (DEBUG_1TR6 > 0) {
-					  printk(KERN_INFO "isdnl3up unhandled 1tr6 state %d MT %x\n"
-						 ,st->l3.state, mt);
-				  }
-				  BufPoolRelease(ibh);
-			  } else
-				  datastatelist_1tr6t[i].rout(st, pr, ibh);
-			  break;
-#endif
-		  case PROTO_EURO:	/* E-DSS1 */
-			  for (i = 0; i < datasllen; i++)
-				  if ((st->l3.state == datastatelist[i].state) &&
-				      (mt == datastatelist[i].primitive))
-					  break;
-			  if (i == datasllen) {
-				  BufPoolRelease(ibh);
-				  if (DEBUG_1TR6 > 0)
-			  	  	printk(KERN_INFO "isdnl3up unhandled E-DSS1 state %d MT %x\n",
-				 		st->l3.state, mt);
-			  } else
-				  datastatelist[i].rout(st, pr, ibh);
-			  break;
-		  default:
-		          BufPoolRelease(ibh);
-			  break;
-		}
-	}
-}
-
-static void
-l3down(struct PStack *st,
-       int pr, void *arg)
-{
-	int             i;
-	struct BufHeader *ibh = arg;
-
-	switch (st->protocol) {
-#ifdef P_1TR6
-	  case ISDN_PTYPE_1TR6:
-		  for (i = 0; i < downsl_1tr6t_len; i++)
-			  if ((st->l3.state == downstatelist_1tr6t[i].state) &&
-			      (pr == downstatelist_1tr6t[i].primitive))
-				  break;
-		  if (i == downsl_1tr6t_len) {
-			  if (DEBUG_1TR6 > 0) {
-				  printk(KERN_INFO "isdnl3down unhandled 1tr6 state %d primitive %x\n", st->l3.state, pr);
-			  }
-		  } else
-			  downstatelist_1tr6t[i].rout(st, pr, ibh);
-		  break;
-#endif
-	  default:
-		  for (i = 0; i < downsllen; i++)
-			  if ((st->l3.state == downstatelist[i].state) &&
-			      (pr == downstatelist[i].primitive))
-				  break;
-		  if (i == downsllen) {
-			  if (DEBUG_1TR6 > 0) {
-				  printk(KERN_INFO "isdnl3down unhandled E-DSS1 state %d primitive %x\n", st->l3.state, pr);
-			  }
-		  } else
-			  downstatelist[i].rout(st, pr, ibh);
-	}
-}
-
-void
-setstack_isdnl3(struct PStack *st)
-{
-	st->l4.l4l3 = l3down;
-	st->l2.l2l3 = l3up;
-	st->l3.state = 0;
-	st->l3.callref = 0;
-	st->l3.debug = 0;
-}

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