From 80dc858648497bb683ccee5157e9f62dbdf99ddb Mon Sep 17 00:00:00 2001
From: markster <markster@5390a7c7-147a-4af0-8ec9-7488f05a26cb>
Date: Fri, 15 Nov 2002 21:27:46 +0000
Subject: Version 0.3.3 from FTP

git-svn-id: http://svn.digium.com/svn/zaptel/trunk@131 5390a7c7-147a-4af0-8ec9-7488f05a26cb
---
 wct1xxp.c | 49 +++++++++++++++++++++++++++++++++++--------------
 1 file changed, 35 insertions(+), 14 deletions(-)

(limited to 'wct1xxp.c')

diff --git a/wct1xxp.c b/wct1xxp.c
index 2d15692..1c6b4d4 100755
--- a/wct1xxp.c
+++ b/wct1xxp.c
@@ -142,6 +142,8 @@ struct t1xxp {
 	int alarmtimer;
 	int loopupcnt;
 	int loopdowncnt;
+	int miss;
+	int misslast;
 	int *chanmap;
 #ifdef FANCY_ALARM
 	int alarmpos;
@@ -867,18 +869,6 @@ static void t1xxp_receiveprep(struct t1xxp *wc, int ints)
 	} else {
 		rxbuf = wc->readchunk + ZT_CHUNKSIZE * 32;
 	}
-	if (!wc->ise1) {
-		for (x=3;x<32;x+=4) {
-			if (rxbuf[(x + WC_OFFSET) & 0x1f] == 0x7f) {
-				if (wc->offset != (x-3)) {
-					wc->offset = x - 3;
-#if 1
-					if (debug) printk("New offset: %d\n", wc->offset);
-#endif
-				}
-			}
-		}
-	}
 	for (y=0;y<ZT_CHUNKSIZE;y++) {
 		for (x=0;x<wc->span.channels;x++) {
 			/* XXX Optimize, remove * and + XXX */
@@ -886,6 +876,35 @@ static void t1xxp_receiveprep(struct t1xxp *wc, int ints)
 			wc->chans[x].readchunk[y] = 
 				rxbuf[32 * y + ((wc->chanmap[x] + WC_OFFSET + wc->offset) & 0x1f)];
 		}
+		if (!wc->ise1) {
+			for (x=3;x<32;x+=4) {
+				if (rxbuf[32 * y + ((x + WC_OFFSET) & 0x1f)] == 0x7f) {
+					if (wc->offset != (x-3)) {
+						wc->offset = x - 3;
+#if 1
+						if (debug) printk("New offset: %d\n", wc->offset);
+#endif
+					}
+				}
+			}
+		} else {
+			if (!wc->clocktimeout && !wc->span.alarms) {
+				if ((rxbuf[32 * y + ((3 + WC_OFFSET + wc->offset) & 0x1f)] & 0x7f) != 0x1b) {
+					if (wc->miss) {
+						if (debug) printk("Double miss (%d, %d)...\n", wc->misslast, rxbuf[32 * y + ((3 + WC_OFFSET + wc->offset) & 0x1f)]);
+						control_set_reg(wc, WC_CLOCK, 0x02 | wc->sync | wc->ise1);
+						wc->clocktimeout = 100;
+					} else {
+						wc->miss = 1;
+						wc->misslast = rxbuf[32 * y + ((3 + WC_OFFSET + wc->offset) & 0x1f)];
+					}
+				} else {
+					wc->miss = 0;
+				}
+			} else {
+				wc->miss = 0;
+			}
+		} 
 	}
 	for (x=0;x<wc->span.channels;x++) {
 		zt_ec_chunk(&wc->chans[x], wc->chans[x].readchunk, 
@@ -1162,8 +1181,6 @@ static int t1xxp_hardware_init(struct t1xxp *wc)
 
 
 	control_set_reg(wc, WC_LEDTEST, 0x00);
-	control_set_reg(wc, WC_CLOCK, 0x02);
-	wc->clocktimeout = 100;
 
 	/* Sanity check also determines e1 or t1 */
 	if (t1xxp_framer_sanity_check(wc))
@@ -1172,6 +1189,10 @@ static int t1xxp_hardware_init(struct t1xxp *wc)
 		wc->chanmap = chanmap_e1;
 	else
 		wc->chanmap = chanmap_t1;
+	/* Setup clock appropriately */
+	control_set_reg(wc, WC_CLOCK, 0x02 | wc->sync | wc->ise1);
+	wc->clocktimeout = 100;
+	
 	/* Reset the T1 and report */
 	t1xxp_framer_hard_reset(wc);
 	start_alarm(wc);
-- 
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