patch-2.1.27 linux/drivers/isdn/hisax/l3dss1.c
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- Lines: 772
- Date:
Tue Feb 25 17:12:49 1997
- Orig file:
v2.1.26/linux/drivers/isdn/hisax/l3dss1.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.1.26/linux/drivers/isdn/hisax/l3dss1.c linux/drivers/isdn/hisax/l3dss1.c
@@ -0,0 +1,771 @@
+/* $Id: l3dss1.c,v 1.12 1997/02/17 00:34:26 keil Exp $
+
+ * EURO/DSS1 D-channel protocol
+ *
+ * Author Karsten Keil (keil@temic-ech.spacenet.de)
+ * based on the teles driver from Jan den Ouden
+ *
+ * Thanks to Jan den Ouden
+ * Fritz Elfert
+ *
+ * $Log: l3dss1.c,v $
+ * Revision 1.12 1997/02/17 00:34:26 keil
+ * Bugfix: Wrong cause delivered
+ *
+ * Revision 1.11 1997/02/16 12:12:47 fritz
+ * Bugfix: SI2 was nont initialized on incoming calls.
+ *
+ * Revision 1.10 1997/02/11 01:37:24 keil
+ * Changed setup-interface (incoming and outgoing)
+ *
+ * Revision 1.9 1997/01/27 23:20:52 keil
+ * report revision only ones
+ *
+ * Revision 1.8 1997/01/21 22:29:41 keil
+ * new statemachine; L3 timers
+ *
+ * Revision 1.7 1996/12/14 21:06:59 keil
+ * additional states for CC_REJECT
+ *
+ * Revision 1.6 1996/12/08 22:59:16 keil
+ * fixed calling party number without octet 3a
+ *
+ * Revision 1.5 1996/12/08 19:53:31 keil
+ * fixes from Pekka Sarnila
+ *
+ * Revision 1.4 1996/11/05 19:44:36 keil
+ * some fixes from Henner Eisen
+ *
+ * Revision 1.3 1996/10/30 10:18:01 keil
+ * bugfixes in debugging output
+ *
+ * Revision 1.2 1996/10/27 22:15:16 keil
+ * bugfix reject handling
+ *
+ * Revision 1.1 1996/10/13 20:04:55 keil
+ * Initial revision
+ *
+ *
+ *
+ */
+
+#define __NO_VERSION__
+#include "hisax.h"
+#include "isdnl3.h"
+
+extern char *HiSax_getrev(const char *revision);
+const char *dss1_revision = "$Revision: 1.12 $";
+
+#define MsgHead(ptr, cref, mty) \
+ *ptr++ = 0x8; \
+ *ptr++ = 0x1; \
+ *ptr++ = cref; \
+ *ptr++ = mty
+
+static void
+l3dss1_message(struct PStack *st, byte mt)
+{
+ struct BufHeader *dibh;
+ byte *p;
+
+ BufPoolGet(&dibh, st->l1.sbufpool, GFP_ATOMIC, (void *) st, 18);
+ p = DATAPTR(dibh);
+ p += st->l2.ihsize;
+
+ MsgHead(p, st->l3.callref, mt);
+
+ dibh->datasize = p - DATAPTR(dibh);
+ st->l3.l3l2(st, DL_DATA, dibh);
+}
+
+static void
+l3dss1_release_req(struct PStack *st, byte pr, void *arg)
+{
+ StopAllL3Timer(st);
+ newl3state(st, 19);
+ l3dss1_message(st, MT_RELEASE);
+ L3AddTimer(&st->l3.timer, st->l3.t308, CC_T308_1);
+}
+
+static void
+l3dss1_release_cmpl(struct PStack *st, byte pr, void *arg)
+{
+ byte *p;
+ struct BufHeader *ibh = arg;
+ int cause = -1;
+
+ p = DATAPTR(ibh);
+ if ((p = findie(p + st->l2.ihsize, ibh->datasize - st->l2.ihsize,
+ IE_CAUSE, 0))) {
+ p++;
+ if (*p++ == 2)
+ st->pa->loc = *p++;
+ cause = *p & 0x7f;
+ }
+ BufPoolRelease(ibh);
+ StopAllL3Timer(st);
+ st->pa->cause = cause;
+ newl3state(st, 0);
+ st->l3.l3l4(st, CC_RELEASE_CNF, NULL);
+}
+
+static void
+l3dss1_setup_req(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;
+
+ MsgHead(p, st->l3.callref, MT_SETUP);
+
+ /*
+ * Set Bearer Capability, Map info from 1TR6-convention to EDSS1
+ */
+ *p++ = 0xa1;
+ switch (st->pa->setup.si1) {
+ case 1: /* Telephony */
+ *p++ = 0x4; /* BC-IE-code */
+ *p++ = 0x3; /* Length */
+ *p++ = 0x90; /* Coding Std. CCITT, 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. CCITT, unrestr. dig. Inform. */
+ *p++ = 0x90; /* Circuit-Mode 64kbps */
+ break;
+ }
+ /*
+ * What about info2? Mapping to High-Layer-Compatibility?
+ */
+ if (st->pa->setup.eazmsn[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);
+ L3DelTimer(&st->l3.timer);
+ L3AddTimer(&st->l3.timer, st->l3.t303, CC_T303);
+ newl3state(st, 1);
+ st->l3.l3l2(st, DL_DATA, dibh);
+
+}
+
+static void
+l3dss1_call_proc(struct PStack *st, byte pr, void *arg)
+{
+ byte *p;
+ struct BufHeader *ibh = arg;
+
+ L3DelTimer(&st->l3.timer);
+ p = DATAPTR(ibh);
+ if ((p = findie(p + st->l2.ihsize, ibh->datasize - st->l2.ihsize,
+ 0x18, 0))) {
+ st->pa->bchannel = p[2] & 0x3;
+ if ((!st->pa->bchannel) && (st->l3.debug & L3_DEB_WARN))
+ l3_debug(st, "setup answer without bchannel");
+ } else if (st->l3.debug & L3_DEB_WARN)
+ l3_debug(st, "setup answer without bchannel");
+ BufPoolRelease(ibh);
+ newl3state(st, 3);
+ L3AddTimer(&st->l3.timer, st->l3.t310, CC_T310);
+ st->l3.l3l4(st, CC_PROCEEDING_IND, NULL);
+}
+
+static void
+l3dss1_setup_ack(struct PStack *st, byte pr, void *arg)
+{
+ byte *p;
+ struct BufHeader *ibh = arg;
+
+ L3DelTimer(&st->l3.timer);
+ p = DATAPTR(ibh);
+ if ((p = findie(p + st->l2.ihsize, ibh->datasize - st->l2.ihsize,
+ 0x18, 0))) {
+ st->pa->bchannel = p[2] & 0x3;
+ if ((!st->pa->bchannel) && (st->l3.debug & L3_DEB_WARN))
+ l3_debug(st, "setup answer without bchannel");
+ } else if (st->l3.debug & L3_DEB_WARN)
+ l3_debug(st, "setup answer without bchannel");
+
+ BufPoolRelease(ibh);
+ newl3state(st, 2);
+ L3AddTimer(&st->l3.timer, st->l3.t304, CC_T304);
+ st->l3.l3l4(st, CC_MORE_INFO, NULL);
+}
+
+static void
+l3dss1_disconnect(struct PStack *st, byte pr, void *arg)
+{
+ byte *p;
+ struct BufHeader *ibh = arg;
+ int cause = -1;
+
+ StopAllL3Timer(st);
+ p = DATAPTR(ibh);
+ if ((p = findie(p + st->l2.ihsize, ibh->datasize - st->l2.ihsize,
+ IE_CAUSE, 0))) {
+ p++;
+ if (*p++ == 2)
+ st->pa->loc = *p++;
+ cause = *p & 0x7f;
+ }
+ BufPoolRelease(ibh);
+ newl3state(st, 12);
+ st->pa->cause = cause;
+ st->l3.l3l4(st, CC_DISCONNECT_IND, NULL);
+}
+
+
+static void
+l3dss1_connect(struct PStack *st, byte pr, void *arg)
+{
+ struct BufHeader *ibh = arg;
+
+
+ BufPoolRelease(ibh);
+ L3DelTimer(&st->l3.timer); /* T310 */
+ newl3state(st, 10);
+ st->l3.l3l4(st, CC_SETUP_CNF, NULL);
+}
+
+static void
+l3dss1_alerting(struct PStack *st, byte pr, void *arg)
+{
+ struct BufHeader *ibh = arg;
+
+ BufPoolRelease(ibh);
+ L3DelTimer(&st->l3.timer); /* T304 */
+ newl3state(st, 4);
+ st->l3.l3l4(st, CC_ALERTING_IND, NULL);
+}
+
+static void
+l3dss1_setup(struct PStack *st, byte pr, void *arg)
+{
+ byte *p;
+ int bcfound = 0;
+ char tmp[80];
+ 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;
+ if (st->pa->bchannel)
+ bcfound++;
+ else if (st->l3.debug & L3_DEB_WARN)
+ l3_debug(st, "setup without bchannel");
+ } else if (st->l3.debug & L3_DEB_WARN)
+ l3_debug(st, "setup without bchannel");
+
+ p = DATAPTR(ibh);
+ /*
+ * 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 if (st->l3.debug & L3_DEB_WARN)
+ l3_debug(st, "setup without bearer capabilities");
+
+ 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
+ st->pa->setup.eazmsn[0] = 0;
+
+ p = DATAPTR(ibh);
+ if ((p = findie(p + st->l2.uihsize, ibh->datasize - st->l2.uihsize,
+ 0x6c, 0))) {
+ st->pa->setup.plan = p[2];
+ if (p[2] & 0x80) {
+ iecpy(st->pa->setup.phone, p, 1);
+ st->pa->setup.screen = 0;
+ } else {
+ iecpy(st->pa->setup.phone, p, 2);
+ st->pa->setup.screen = p[3];
+ }
+ } else {
+ st->pa->setup.phone[0] = 0;
+ st->pa->setup.plan = 0;
+ st->pa->setup.screen = 0;
+ }
+ BufPoolRelease(ibh);
+
+ if (bcfound) {
+ if ((st->pa->setup.si1 != 7) && (st->l3.debug & L3_DEB_WARN)) {
+ sprintf(tmp, "non-digital call: %s -> %s",
+ st->pa->setup.phone,
+ st->pa->setup.eazmsn);
+ l3_debug(st, tmp);
+ }
+ newl3state(st, 6);
+ st->l3.l3l4(st, CC_SETUP_IND, NULL);
+ }
+}
+
+static void
+l3dss1_reset(struct PStack *st, byte pr, void *arg)
+{
+ StopAllL3Timer(st);
+ newl3state(st, 0);
+}
+
+static void
+l3dss1_setup_rsp(struct PStack *st, byte pr,
+ void *arg)
+{
+ newl3state(st, 8);
+ l3dss1_message(st, MT_CONNECT);
+ L3DelTimer(&st->l3.timer);
+ L3AddTimer(&st->l3.timer, st->l3.t313, CC_T313);
+}
+
+static void
+l3dss1_connect_ack(struct PStack *st, byte pr, void *arg)
+{
+ struct BufHeader *ibh = arg;
+
+ BufPoolRelease(ibh);
+ newl3state(st, 10);
+ L3DelTimer(&st->l3.timer);
+ st->l3.l3l4(st, CC_SETUP_COMPLETE_IND, NULL);
+}
+
+static void
+l3dss1_disconnect_req(struct PStack *st, byte pr, void *arg)
+{
+ struct BufHeader *dibh;
+ byte *p;
+ byte cause = 0x10;
+
+ if (st->pa->cause > 0)
+ cause = st->pa->cause;
+
+ StopAllL3Timer(st);
+ BufPoolGet(&dibh, st->l1.sbufpool, GFP_ATOMIC, (void *) st, 20);
+ p = DATAPTR(dibh);
+ p += st->l2.ihsize;
+
+ MsgHead(p, st->l3.callref, MT_DISCONNECT);
+
+ *p++ = IE_CAUSE;
+ *p++ = 0x2;
+ *p++ = 0x80;
+ *p++ = cause | 0x80;
+
+ dibh->datasize = p - DATAPTR(dibh);
+ newl3state(st, 11);
+ st->l3.l3l2(st, DL_DATA, dibh);
+ L3AddTimer(&st->l3.timer, st->l3.t305, CC_T305);
+}
+
+static void
+l3dss1_reject_req(struct PStack *st, byte pr, void *arg)
+{
+ struct BufHeader *dibh;
+ byte *p;
+ byte cause = 0x95;
+
+ if (st->pa->cause > 0)
+ cause = st->pa->cause;
+
+ BufPoolGet(&dibh, st->l1.sbufpool, GFP_ATOMIC, (void *) st, 20);
+ p = DATAPTR(dibh);
+ p += st->l2.ihsize;
+
+ MsgHead(p, st->l3.callref, MT_RELEASE_COMPLETE);
+
+ *p++ = IE_CAUSE;
+ *p++ = 0x2;
+ *p++ = 0x80;
+ *p++ = cause;
+
+ dibh->datasize = p - DATAPTR(dibh);
+ newl3state(st, 0);
+ st->l3.l3l2(st, DL_DATA, dibh);
+ st->l3.l3l4(st, CC_RELEASE_IND, NULL);
+}
+
+static void
+l3dss1_release(struct PStack *st, byte pr, void *arg)
+{
+ byte *p;
+ struct BufHeader *ibh = arg;
+ int cause = -1;
+
+ p = DATAPTR(ibh);
+ if ((p = findie(p + st->l2.ihsize, ibh->datasize - st->l2.ihsize,
+ IE_CAUSE, 0))) {
+ p++;
+ if (*p++ == 2)
+ st->pa->loc = *p++;
+ cause = *p & 0x7f;
+ }
+ BufPoolRelease(ibh);
+ StopAllL3Timer(st);
+ st->pa->cause = cause;
+ newl3state(st, 0);
+ l3dss1_message(st, MT_RELEASE_COMPLETE);
+ st->l3.l3l4(st, CC_RELEASE_IND, NULL);
+}
+
+static void
+l3dss1_alert_req(struct PStack *st, byte pr,
+ void *arg)
+{
+ newl3state(st, 7);
+ l3dss1_message(st, MT_ALERTING);
+}
+
+static void
+l3dss1_status_enq(struct PStack *st, byte pr, void *arg)
+{
+ struct BufHeader *dibh = arg;
+ byte *p;
+
+ BufPoolRelease(dibh);
+
+ BufPoolGet(&dibh, st->l1.sbufpool, GFP_ATOMIC, (void *) st, 22);
+ p = DATAPTR(dibh);
+ p += st->l2.ihsize;
+
+ MsgHead(p, st->l3.callref, MT_STATUS);
+
+ *p++ = IE_CAUSE;
+ *p++ = 0x2;
+ *p++ = 0x80;
+ *p++ = 0x9E; /* answer status enquire */
+
+ *p++ = 0x14; /* CallState */
+ *p++ = 0x1;
+ *p++ = st->l3.state & 0x3f;
+
+ dibh->datasize = p - DATAPTR(dibh);
+ st->l3.l3l2(st, DL_DATA, dibh);
+}
+
+static void
+l3dss1_t303(struct PStack *st, byte pr, void *arg)
+{
+ if (st->l3.n_t303 > 0) {
+ st->l3.n_t303--;
+ L3DelTimer(&st->l3.timer);
+ l3dss1_setup_req(st, pr, arg);
+ } else {
+ newl3state(st, 0);
+ L3DelTimer(&st->l3.timer);
+ st->l3.l3l4(st, CC_NOSETUP_RSP_ERR, NULL);
+ st->l3.n_t303 = 1;
+ }
+}
+
+static void
+l3dss1_t304(struct PStack *st, byte pr, void *arg)
+{
+ L3DelTimer(&st->l3.timer);
+ st->pa->cause = 0xE6;
+ l3dss1_disconnect_req(st, pr, NULL);
+ st->l3.l3l4(st, CC_SETUP_ERR, NULL);
+
+}
+
+static void
+l3dss1_t305(struct PStack *st, byte pr, void *arg)
+{
+ struct BufHeader *dibh;
+ byte *p;
+ byte cause = 0x90;
+
+ L3DelTimer(&st->l3.timer);
+ if (st->pa->cause > 0)
+ cause = st->pa->cause;
+
+ BufPoolGet(&dibh, st->l1.sbufpool, GFP_ATOMIC, (void *) st, 20);
+ p = DATAPTR(dibh);
+ p += st->l2.ihsize;
+
+ MsgHead(p, st->l3.callref, MT_RELEASE);
+
+ *p++ = IE_CAUSE;
+ *p++ = 0x2;
+ *p++ = 0x80;
+ *p++ = cause;
+
+ dibh->datasize = p - DATAPTR(dibh);
+ newl3state(st, 19);
+ st->l3.l3l2(st, DL_DATA, dibh);
+ L3AddTimer(&st->l3.timer, st->l3.t308, CC_T308_1);
+}
+
+static void
+l3dss1_t310(struct PStack *st, byte pr, void *arg)
+{
+ L3DelTimer(&st->l3.timer);
+ st->pa->cause = 0xE6;
+ l3dss1_disconnect_req(st, pr, NULL);
+ st->l3.l3l4(st, CC_SETUP_ERR, NULL);
+}
+
+static void
+l3dss1_t313(struct PStack *st, byte pr, void *arg)
+{
+ L3DelTimer(&st->l3.timer);
+ st->pa->cause = 0xE6;
+ l3dss1_disconnect_req(st, pr, NULL);
+ st->l3.l3l4(st, CC_CONNECT_ERR, NULL);
+}
+
+static void
+l3dss1_t308_1(struct PStack *st, byte pr, void *arg)
+{
+ newl3state(st, 19);
+ L3DelTimer(&st->l3.timer);
+ l3dss1_message(st, MT_RELEASE);
+ L3AddTimer(&st->l3.timer, st->l3.t308, CC_T308_2);
+}
+
+static void
+l3dss1_t308_2(struct PStack *st, byte pr, void *arg)
+{
+ newl3state(st, 0);
+ L3DelTimer(&st->l3.timer);
+ st->l3.l3l4(st, CC_RELEASE_ERR, NULL);
+}
+
+static struct stateentry downstatelist[] =
+{
+ {SBIT(0),
+ CC_SETUP_REQ, l3dss1_setup_req},
+ {SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(6) | SBIT(7) | SBIT(8) | SBIT(10),
+ CC_DISCONNECT_REQ, l3dss1_disconnect_req},
+ {SBIT(12),
+ CC_RELEASE_REQ, l3dss1_release_req},
+ {ALL_STATES,
+ CC_DLRL, l3dss1_reset},
+ {SBIT(6),
+ CC_IGNORE, l3dss1_reset},
+ {SBIT(6),
+ CC_REJECT_REQ, l3dss1_reject_req},
+ {SBIT(6),
+ CC_ALERTING_REQ, l3dss1_alert_req},
+ {SBIT(6) | SBIT(7),
+ CC_SETUP_RSP, l3dss1_setup_rsp},
+ {SBIT(1),
+ CC_T303, l3dss1_t303},
+ {SBIT(2),
+ CC_T304, l3dss1_t304},
+ {SBIT(3),
+ CC_T310, l3dss1_t310},
+ {SBIT(8),
+ CC_T313, l3dss1_t313},
+ {SBIT(11),
+ CC_T305, l3dss1_t305},
+ {SBIT(19),
+ CC_T308_1, l3dss1_t308_1},
+ {SBIT(19),
+ CC_T308_2, l3dss1_t308_2},
+};
+
+static int downsllen = sizeof(downstatelist) /
+sizeof(struct stateentry);
+
+static struct stateentry datastatelist[] =
+{
+ {ALL_STATES,
+ MT_STATUS_ENQUIRY, l3dss1_status_enq},
+ {SBIT(0) | SBIT(6),
+ MT_SETUP, l3dss1_setup},
+ {SBIT(1) | SBIT(2),
+ MT_CALL_PROCEEDING, l3dss1_call_proc},
+ {SBIT(1),
+ MT_SETUP_ACKNOWLEDGE, l3dss1_setup_ack},
+ {SBIT(1) | SBIT(2) | SBIT(3),
+ MT_ALERTING, l3dss1_alerting},
+ {SBIT(0) | SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(7) | SBIT(8) | SBIT(10) |
+ SBIT(11) | SBIT(12) | SBIT(15) | SBIT(17) | SBIT(19),
+ MT_RELEASE_COMPLETE, l3dss1_release_cmpl},
+ {SBIT(0) | SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(7) | SBIT(8) | SBIT(10) |
+ SBIT(11) | SBIT(12) | SBIT(15) | SBIT(17) | SBIT(19),
+ MT_RELEASE, l3dss1_release},
+ {SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(7) | SBIT(8) | SBIT(10),
+ MT_DISCONNECT, l3dss1_disconnect},
+ {SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4),
+ MT_CONNECT, l3dss1_connect},
+ {SBIT(8),
+ MT_CONNECT_ACKNOWLEDGE, l3dss1_connect_ack},
+};
+
+static int datasllen = sizeof(datastatelist) /
+sizeof(struct stateentry);
+
+static void
+dss1up(struct PStack *st,
+ int pr, void *arg)
+{
+ int i, mt, size;
+ byte *ptr;
+ struct BufHeader *ibh = arg;
+ char tmp[80];
+
+ if (pr == DL_DATA) {
+ ptr = DATAPTR(ibh);
+ ptr += st->l2.ihsize;
+ size = ibh->datasize - st->l2.ihsize;
+ } else if (pr == DL_UNIT_DATA) {
+ ptr = DATAPTR(ibh);
+ ptr += st->l2.uihsize;
+ size = ibh->datasize - st->l2.uihsize;
+ } else {
+ if (st->l3.debug & L3_DEB_WARN) {
+ sprintf(tmp, "dss1up unknown data typ %d state %d",
+ pr, st->l3.state);
+ l3_debug(st, tmp);
+ }
+ BufPoolRelease(ibh);
+ return;
+ }
+ if (ptr[0] != PROTO_DIS_EURO) {
+ if (st->l3.debug & L3_DEB_PROTERR) {
+ sprintf(tmp, "dss1up%sunexpected discriminator %x message len %d state %d",
+ (pr == DL_DATA) ? " " : "(broadcast) ",
+ ptr[0], size, st->l3.state);
+ l3_debug(st, tmp);
+ }
+ BufPoolRelease(ibh);
+ return;
+ }
+ mt = ptr[3];
+ for (i = 0; i < datasllen; i++)
+ if ((mt == datastatelist[i].primitive) &&
+ ((1 << st->l3.state) & datastatelist[i].state))
+ break;
+ if (i == datasllen) {
+ BufPoolRelease(ibh);
+ if (st->l3.debug & L3_DEB_STATE) {
+ sprintf(tmp, "dss1up%sstate %d mt %x unhandled",
+ (pr == DL_DATA) ? " " : "(broadcast) ",
+ st->l3.state, mt);
+ l3_debug(st, tmp);
+ }
+ return;
+ } else {
+ if (st->l3.debug & L3_DEB_STATE) {
+ sprintf(tmp, "dss1up%sstate %d mt %x",
+ (pr == DL_DATA) ? " " : "(broadcast) ",
+ st->l3.state, mt);
+ l3_debug(st, tmp);
+ }
+ datastatelist[i].rout(st, pr, ibh);
+ }
+}
+
+static void
+dss1down(struct PStack *st,
+ int pr, void *arg)
+{
+ int i;
+ struct BufHeader *ibh = arg;
+ char tmp[80];
+
+ for (i = 0; i < downsllen; i++)
+ if ((pr == downstatelist[i].primitive) &&
+ ((1 << st->l3.state) & downstatelist[i].state))
+ break;
+ if (i == downsllen) {
+ if (st->l3.debug & L3_DEB_STATE) {
+ sprintf(tmp, "dss1down state %d prim %d unhandled",
+ st->l3.state, pr);
+ l3_debug(st, tmp);
+ }
+ } else {
+ if (st->l3.debug & L3_DEB_STATE) {
+ sprintf(tmp, "dss1down state %d prim %d",
+ st->l3.state, pr);
+ l3_debug(st, tmp);
+ }
+ downstatelist[i].rout(st, pr, ibh);
+ }
+}
+
+void
+setstack_dss1(struct PStack *st)
+{
+ char tmp[64];
+
+ st->l4.l4l3 = dss1down;
+ st->l2.l2l3 = dss1up;
+ st->l3.t303 = 4000;
+ st->l3.t304 = 30000;
+ st->l3.t305 = 30000;
+ st->l3.t308 = 4000;
+ st->l3.t310 = 30000;
+ st->l3.t313 = 4000;
+ st->l3.t318 = 4000;
+ st->l3.t319 = 4000;
+ st->l3.n_t303 = 1;
+
+ if (st->l3.channr & 1) {
+ strcpy(tmp, dss1_revision);
+ printk(KERN_NOTICE "HiSax: DSS1 Rev. %s\n", HiSax_getrev(tmp));
+ }
+}
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen, slshen@lbl.gov