Added functionality so that e&m trunks can "flash" after going offhook

added the #define EMFLASH to zconfig.h to enable this feature


git-svn-id: http://svn.digium.com/svn/zaptel/trunk@666 5390a7c7-147a-4af0-8ec9-7488f05a26cb

1 files changed, 26 insertions, 0 deletions

diff --git a/zaptel.c b/zaptel.c
index 77d1eea..25809df 100755
--- a/zaptel.c
+++ b/zaptel.c
@@ -645,6 +645,7 @@ static void zt_check_conf(int x)
 /* enqueue an event on a channel */
 static void __qevent(struct zt_chan *chan, int event)
 {
+printk("@@@@@@@@ sending event %d on %s\n",event,chan->name);
 	  /* if full, ignore */
 	if ((chan->eventoutidx == 0) && (chan->eventinidx == (ZT_MAX_EVENTSIZE - 1))) 
 		return;
@@ -4970,6 +4971,15 @@ static inline void rbs_itimer_expire(struct zt_chan *chan)
 		__qevent(chan,ZT_EVENT_ONHOOK);
 		chan->gotgs = 0; 
 		break;
+#ifdef	EMFLASH
+	    case ZT_SIG_EM:
+	    case ZT_SIG_EM_E1:
+		if (chan->rxhooksig == ZT_RXSIG_ONHOOK) {
+			__qevent(chan,ZT_EVENT_ONHOOK); 
+			break;
+		}
+		/* intentionally fall thru */
+#endif
 	    default:  /* otherwise, its definitely off hook */
 		__qevent(chan,ZT_EVENT_RINGOFFHOOK); 
 		break;
@@ -5126,6 +5136,14 @@ static void __zt_hooksig_pvt(struct zt_chan *chan, zt_rxsig_t rxsig)
 		switch(rxsig) {
 		    case ZT_RXSIG_OFFHOOK: /* went off hook */
 			/* The interface is going off hook */
+#ifdef	EMFLASH
+			if (chan->itimer)
+			{
+				__qevent(chan,ZT_EVENT_WINKFLASH); 
+				chan->itimerset = chan->itimer = 0;
+				break;				
+			}
+#endif
 			/* set wink timer */
 			chan->itimerset = chan->itimer = chan->rxwinktime * 8;
 			break;
@@ -5134,10 +5152,18 @@ static void __zt_hooksig_pvt(struct zt_chan *chan, zt_rxsig_t rxsig)
 			   Check for WINK, etc */
 			if (chan->itimer)
 				__qevent(chan,ZT_EVENT_WINKFLASH); 
+#ifdef	EMFLASH
+			else {
+				chan->itimerset = chan->itimer = chan->rxflashtime * 8;
+				chan->gotgs = 0;
+				break;				
+			}
+#else
 			else {
 				__qevent(chan,ZT_EVENT_ONHOOK); 
 				chan->gotgs = 0;
 			}
+#endif
 			chan->itimerset = chan->itimer = 0;
 			break;
 		    default: