From 5401b056582c8f9747fa1d48e8ab0fca98e1be5d Mon Sep 17 00:00:00 2001
From: markster <markster@5390a7c7-147a-4af0-8ec9-7488f05a26cb>
Date: Sun, 20 Jan 2002 17:48:38 +0000
Subject: Version 0.1.6 from FTP

git-svn-id: http://svn.digium.com/svn/zaptel/trunk@49 5390a7c7-147a-4af0-8ec9-7488f05a26cb
---
 torisa.c | 63 +++++++++++++++++++++++++++++++--------------------------------
 1 file changed, 31 insertions(+), 32 deletions(-)

(limited to 'torisa.c')

diff --git a/torisa.c b/torisa.c
index 71182d7..53b529e 100755
--- a/torisa.c
+++ b/torisa.c
@@ -694,7 +694,7 @@ static int txerrors;
 static void torisa_intr(int irq, void *dev_id, struct pt_regs *regs)
 {
 	static unsigned int passno = 0, mysynccnt = 0, lastsyncsrc = -1;
-	int n, n1, i, j, k, x, mysyncsrc;
+	int n, n1, i, j, k, x, mysyncsrc, oldn;
 	static unsigned short rxword[33],txword[33];
 	unsigned char txc, rxc, c;
 	unsigned char abits, bbits, cbits, dbits;
@@ -732,11 +732,33 @@ static void torisa_intr(int irq, void *dev_id, struct pt_regs *regs)
 
 	setctlreg(clockvals[syncsrc] | OUTBIT); /* clear 16 bit mode */
 
-	/* Calculate the transmit, go thru all the chans */
-	for(n1 = 0; n1 < channels_per_span; n1++)
-	   {
+	/* Calculate the transmit, and receive go thru all the chans */
+	oldn = -1;
+	for(n1 = 0; n1 < channels_per_span; n1++) {
 	    n = chseq[n1];
 	    txword[n] = 0;
+	    if (n < oldn) {
+		/* We've circled around.  
+		   Now we increment the passno and stuff */
+		if ((passno % ZT_CHUNKSIZE) == (ZT_CHUNKSIZE - 1)) {
+			/* Swap buffers */
+			for (x = 0;x < (channels_per_span * 2);x++) {
+				chans[x].readchunk = readdata[curread][x];
+				chans[x].writechunk = writedata[curread][x];
+			}
+			/* Lets work with the others now which presumably have been filled */
+			curread = 1 - curread;
+			if (!taskletpending) {
+				taskletpending = 1;
+				taskletsched++;
+				tasklet_hi_schedule(&torisa_tlet);
+			} else {
+				txerrors++;
+			}
+		}
+		passno++;
+	    }
+	    oldn = n;
 	      /* go thru both spans */
 	    for(j = 0; j < 2; j++)
 	      {
@@ -744,21 +766,13 @@ static void torisa_intr(int irq, void *dev_id, struct pt_regs *regs)
 			   leaving with txc being character to transmit */
 			txc = writedata[curread][j * channels_per_span + n-1][passno % ZT_CHUNKSIZE];
 			txword[n] |= txc << (j * 8); 
-	      }
-	   }
 
-	  /* do the receive for all chans, both spans */
-	for(n1 = 0; n1 < channels_per_span; n1++)
-	   {
-	    n = chseq[n1];
-	      /* go thru both spans */
-	    for(j = 0; j <= 1; j++)
-	      {
+			/* receive side */
 			i = n + (j * channels_per_span);  /* calc chan number */
 			rxc = (rxword[n] >> (j * 8)) & 0xff;
 			readdata[curread][j * channels_per_span + n - 1][passno % ZT_CHUNKSIZE] = rxc;
 	      }
-	   }
+	}
 
 	i = passno & 511;
 	/* if an E1 card, do rx signalling for it */
@@ -960,24 +974,6 @@ static void torisa_intr(int irq, void *dev_id, struct pt_regs *regs)
 	/* update sync src info */
 	spans[0].syncsrc = spans[1].syncsrc = syncsrc;
 	/* If this is the last pass, then prepare the next set */
-	if ((passno % ZT_CHUNKSIZE) == (ZT_CHUNKSIZE - 1)) {
-		/* Swap buffers */
-		for (x = 0;x < (channels_per_span * 2);x++) {
-			chans[x].readchunk = readdata[curread][x];
-			chans[x].writechunk = writedata[curread][x];
-		}
-		/* Lets work with the others now which presumably have been filled */
-		curread = 1 - curread;
-		if (!taskletpending) {
-			taskletpending = 1;
-			taskletsched++;
-			tasklet_hi_schedule(&torisa_tlet);
-		} else {
-			txerrors++;
-		}
-
-	}		
-	passno++;
 	  /* clear outbit, restore interrupt enable */
 	setctlreg(clockvals[syncsrc] | INTENA);
 }
@@ -1103,6 +1099,9 @@ static void __exit tor_exit(void)
 
 MODULE_AUTHOR("Mark Spencer <markster@linux-support.net>");
 MODULE_DESCRIPTION("Tormenta ISA Zapata Telephony Driver");
+#ifdef MODULE_LICENSE
+MODULE_LICENSE("GPL");
+#endif
 MODULE_PARM(prefmaster, "i");
 MODULE_PARM(base, "i");
 MODULE_PARM(irq, "i");
-- 
cgit v1.2.3