patch-2.1.37 linux/drivers/isdn/teles/isdnl3.c
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- Lines: 674
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.1.36/linux/drivers/isdn/teles/isdnl3.c
- Orig date:
Thu Feb 27 10:57:30 1997
diff -u --recursive --new-file v2.1.36/linux/drivers/isdn/teles/isdnl3.c linux/drivers/isdn/teles/isdnl3.c
@@ -1,673 +0,0 @@
-/* $Id: isdnl3.c,v 1.13 1997/02/16 12:12:51 fritz Exp $
- *
- * $Log: isdnl3.c,v $
- * Revision 1.13 1997/02/16 12:12:51 fritz
- * Bugfix: SI2 was nont initialized on incoming calls.
- *
- * Revision 1.12 1997/02/11 01:39:20 keil
- * Changed setup-interface (incoming and outgoing)
- *
- * 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->setup.si1) {
- 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->setup.eazmsn[0] != '\0') {
- *p++ = 0x6c;
- *p++ = strlen(st->pa->setup.eazmsn) + 1;
- /* Classify as AnyPref. */
- *p++ = 0x81; /* Ext = '1'B, Type = '000'B, Plan = '0001'B. */
- teln = st->pa->setup.eazmsn;
- while (*teln)
- *p++ = *teln++ & 0x7f;
- }
- *p++ = 0x70;
- *p++ = strlen(st->pa->setup.phone) + 1;
- /* Classify as AnyPref. */
- *p++ = 0x81; /* Ext = '1'B, Type = '000'B, Plan = '0001'B. */
-
- teln = st->pa->setup.phone;
- 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->setup.si1 = p[2];
- st->pa->setup.si2 = 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))) {
- st->pa->setup.si2 = 0;
- switch (p[2] & 0x1f) {
- case 0x00:
- /* Speech */
- case 0x10:
- /* 3.1 Khz audio */
- st->pa->setup.si1 = 1;
- break;
- case 0x08:
- /* Unrestricted digital information */
- st->pa->setup.si1 = 7;
- break;
- case 0x09:
- /* Restricted digital information */
- st->pa->setup.si1 = 2;
- break;
- case 0x11:
- /* Unrestr. digital information with tones/announcements */
- st->pa->setup.si1 = 3;
- break;
- case 0x18:
- /* Video */
- st->pa->setup.si1 = 4;
- break;
- default:
- st->pa->setup.si1 = 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->setup.eazmsn, p, 1);
- else
- strcpy(st->pa->setup.eazmsn, "");
-
- p = DATAPTR(ibh);
- if ((p = findie(p + st->l2.uihsize, ibh->datasize - st->l2.uihsize,
- 0x6c, 0))) {
- st->pa->setup.plan = p[2];
- if (st->protocol == ISDN_PTYPE_1TR6) {
- iecpy(st->pa->setup.phone, p, 1);
- } else {
- st->pa->setup.screen = p[3];
- iecpy(st->pa->setup.phone, p, 2);
- }
- } else
- strcpy(st->pa->setup.phone, "");
- BufPoolRelease(ibh);
-
- if (bcfound) {
- if (st->pa->setup.si1 != 7) {
- printk(KERN_DEBUG "non-digital call: %s -> %s\n",
- st->pa->setup.phone,
- st->pa->setup.eazmsn);
- }
- 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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