J1 mode changes

git-svn-id: http://svn.digium.com/svn/zaptel/trunk@614 5390a7c7-147a-4af0-8ec9-7488f05a26cb

1 files changed, 14 insertions, 1 deletions

diff --git a/wcte11xp.c b/wcte11xp.c
index ccc6d3e..aaf78f6 100755
--- a/wcte11xp.c
+++ b/wcte11xp.c
@@ -178,6 +178,7 @@ struct t1 {
 #define CANARY 0xca1e
 
 static int debug = 0;   /* doesnt do anything */
+static int j1mode = 0;
 static int alarmdebounce = 0;
 static int loopback = 0;
 static int clockextra = 0;
@@ -699,7 +700,13 @@ static void __t1_configure_t1(struct t1 *wc, int lineconfig, int txlevel)
 	fmr2 = 0x22; /* FMR2: no payload loopback, auto send yellow alarm */
 	if (loopback)
 		fmr2 |= 0x4;
-	fmr4 = 0x0c; /* FMR4: Lose sync on 2 out of 5 framing bits, auto resync */
+
+	if (j1mode)
+		fmr4 = 0x1c;
+	else
+		fmr4 = 0x0c; /* FMR4: Lose sync on 2 out of 5 framing bits, auto resync */
+
+
 	lim2 = 0x21; /* LIM2: 50% peak is a "1", Advanced Loss recovery */
 	lim2 |= (mytxlevel << 6);	/* LIM2: Add line buildout */
 	__t1_framer_out(wc, 0x1d, fmr1);
@@ -721,6 +728,7 @@ static void __t1_configure_t1(struct t1 *wc, int lineconfig, int txlevel)
 		fmr2 |= 0xc0;
 	}
 	__t1_framer_out(wc, 0x1c, fmr0);
+
 	__t1_framer_out(wc, 0x20, fmr4);
 	__t1_framer_out(wc, 0x21, 0x40);	/* FMR5: Enable RBS mode */
 
@@ -733,6 +741,9 @@ static void __t1_configure_t1(struct t1 *wc, int lineconfig, int txlevel)
 	__t1_framer_out(wc, 0x3a, lim2);	/* LIM2: 50% peak amplitude is a "1" */
 	__t1_framer_out(wc, 0x38, 0x0a);	/* PCD: LOS after 176 consecutive "zeros" */
 	__t1_framer_out(wc, 0x39, 0x15);	/* PCR: 22 "ones" clear LOS */
+
+	if (j1mode)
+		__t1_framer_out(wc, 0x24, 0x80); /* J1 overide */
 		
 	/* Generate pulse mask for T1 */
 	switch(mytxlevel) {
@@ -1570,12 +1581,14 @@ module_param(loopback, int, 0600);
 module_param(t1e1override, int, 0600);
 module_param(clockextra, int, 0600);
 module_param(debug, int, 0600);
+module_param(j1mode, int, 0600);
 #else
 MODULE_PARM(alarmdebounce, "i");
 MODULE_PARM(loopback, "i");
 MODULE_PARM(t1e1override, "i");
 MODULE_PARM(clockextra, "i");
 MODULE_PARM(debug, "i");
+MODULE_PARM(j1mode, "i");
 #endif
 MODULE_DESCRIPTION("Wildcard T100P/E100P Zaptel Driver");
 MODULE_AUTHOR("Mark Spencer <markster@linux-support.net>");