From 99837b49c97ca251df8b792d4a66095f8daf1b7a Mon Sep 17 00:00:00 2001
From: markster <markster@5390a7c7-147a-4af0-8ec9-7488f05a26cb>
Date: Sat, 10 Apr 2004 03:01:57 +0000
Subject: Implement manual yellow alarm on things we should (like RECOVER and
 NOTOPEN) for bug 1091

git-svn-id: http://svn.digium.com/svn/zaptel/trunk@358 5390a7c7-147a-4af0-8ec9-7488f05a26cb
---
 wct4xxp.c | 32 ++++++++++++++++++++------------
 1 file changed, 20 insertions(+), 12 deletions(-)

(limited to 'wct4xxp.c')

diff --git a/wct4xxp.c b/wct4xxp.c
index 9969b72..9e2b128 100755
--- a/wct4xxp.c
+++ b/wct4xxp.c
@@ -1184,6 +1184,14 @@ static void __t4_do_counters(struct t4 *wc)
 	for (span=0;span<4;span++) {
 		if (wc->alarmtimer[span]) {
 			if (!--wc->alarmtimer[span]) {
+				unsigned char fmr4;
+#if 1
+				printk("wct4xxp: Clearing yellow alarm on span %d\n", span + 1);
+#endif
+
+				/* We manually do yellow alarm to handle RECOVER  */
+				fmr4 = __t4_framer_in(wc, span, 0x20);
+				__t4_framer_out(wc, span, 0x20, fmr4 & ~0x20);
 				wc->spans[span].alarms &= ~(ZT_ALARM_RECOVER);
 				wc->checktiming = 1;
 				zt_alarm_notify(&wc->spans[span]);
@@ -1271,20 +1279,20 @@ static void __t4_check_alarms(struct t4 *wc, int span)
 	/* Keep track of recovering */
 	if ((!alarms) && wc->spans[span].alarms) 
 		wc->alarmtimer[span] = ZT_ALARMSETTLE_TIME;
+	if (wc->alarmtimer[span])
+		alarms |= ZT_ALARM_RECOVER;
 	
 
 	/* If receiving alarms, go into Yellow alarm state */
 	if (alarms && (!wc->spans[span].alarms)) {
-#if 0
-		printk("Going into yellow alarm\n");
+		unsigned char fmr4;
+#if 1
+		printk("wct4xxp: Setting yellow alarm on span %d\n", span + 1);
 #endif
-#if 0
-		/* The quadfalc automatically generates yellow alarm */
-		if (wc->spantype[span] == TYPE_E1)
-			__t1_set_reg(wc, 0x21, 0x7f); 
-		else
-			__t1_set_reg(wc, 0x35, 0x11); 
-#endif			
+
+		/* We manually do yellow alarm to handle RECOVER and NOTOPEN, otherwise it's auto anyway */
+		fmr4 = __t4_framer_in(wc, span, 0x20);
+		__t4_framer_out(wc, span, 0x20, fmr4 | 0x20);
 	}
 
 #if 0
@@ -1303,8 +1311,6 @@ static void __t4_check_alarms(struct t4 *wc, int span)
 		__control_set_reg(wc, WC_CLOCK, d);  
 	}
 #endif
-	if (wc->alarmtimer[span])
-		alarms |= ZT_ALARM_RECOVER;
 
 	if (c & 0x10)
 		alarms |= ZT_ALARM_YELLOW;
@@ -1468,10 +1474,12 @@ static void t4_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 		__t4_check_alarms(wc, x - 4);
 		break;
 	}
-	
+
+#if 0	
 	/* periodically check timing */
 	if (!(wc->intcount % (8000/ZT_CHUNKSIZE)))
 		wc->checktiming = 1;
+#endif
 
 	if (wc->checktiming > 0)
 		__t4_set_timing_source_auto(wc);
-- 
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