patch-2.2.18 linux/drivers/char/rio/riotty.c

• Lines: 117
• Date: Thu Dec 7 14:45:41 2000
• Orig file: v2.2.17/drivers/char/rio/riotty.c
• Orig date: Sat Sep 9 18:42:36 2000

diff -u --new-file --recursive --exclude-from /usr/src/exclude v2.2.17/drivers/char/rio/riotty.c linux/drivers/char/rio/riotty.c
@@ -95,7 +95,7 @@
 #endif
 
 static void RIOClearUp(struct Port *PortP);
-static int RIOShortCommand(struct rio_info *p, struct Port *PortP, 
+int RIOShortCommand(struct rio_info *p, struct Port *PortP, 
 			   int command, int len, int arg);
 
 
@@ -451,8 +451,11 @@
 				PortP->gs.tty->termios->c_state |= WOPEN;
 				*/
 				PortP->State |= RIO_WOPEN;
+				rio_spin_unlock_irqrestore(&PortP->portSem, flags);
+				if (RIODelay (PortP, HUNDRED_MS) == RIO_FAIL)
 #if 0
 				if ( sleep((caddr_t)&tp->tm.c_canqo, TTIPRI|PCATCH))
+#endif
 				{
 					/*
 					** ACTION: verify that this is a good thing
@@ -470,7 +473,6 @@
 					func_exit ();
 					return -EINTR;
 				}
-#endif
 			}
 			PortP->State &= ~RIO_WOPEN;
 		}
@@ -526,8 +528,10 @@
 #endif
 	struct Port *PortP =ptr;	/* pointer to the port structure */
 	int deleted = 0;
-	int	try = 25;
-	int	repeat_this = 0xff;
+	int	try = -1; /* Disable the timeouts by setting them to -1 */
+	int	repeat_this = -1; /* Congrats to those having 15 years of 
+				     uptime! (You get to break the driver.) */
+	long end_time;
 	struct tty_struct * tty;
 	unsigned long flags;
 	int Modem;
@@ -540,6 +544,12 @@
 	/* tp = PortP->TtyP;*/			/* Get tty */
 	tty = PortP->gs.tty;
 	rio_dprintk (RIO_DEBUG_TTY, "TTY is at address 0x%x\n",(int)tty);
+
+	if (PortP->gs.closing_wait) 
+	  end_time = jiffies + PortP->gs.closing_wait;
+	else 
+	  end_time = jiffies + MAX_SCHEDULE_TIMEOUT;
+
 	Modem = rio_ismodem(tty->device);
 #if 0
 	/* What F.CKING cache? Even then, a higly idle multiprocessor,
@@ -572,7 +582,8 @@
 	** clear the open bits for this device
 	*/
 	PortP->State &= (Modem ? ~RIO_MOPEN : ~RIO_LOPEN);
-
+	PortP->State &= ~RIO_CARR_ON;
+	PortP->ModemState &= ~MSVR1_CD;
 	/*
 	** If the device was open as both a Modem and a tty line
 	** then we need to wimp out here, as the port has not really
@@ -604,7 +615,7 @@
 	*/
 	rio_dprintk (RIO_DEBUG_TTY, "Timeout 1 starts\n");
 
-#if 0
+
 	if (!deleted)
 	while ( (PortP->InUse != NOT_INUSE) && !p->RIOHalted && 
 		(PortP->TxBufferIn != PortP->TxBufferOut) ) {
@@ -625,7 +636,7 @@
 		}
 		rio_spin_lock_irqsave(&PortP->portSem, flags);
 	}
-#endif
+
 	PortP->TxBufferIn = PortP->TxBufferOut = 0;
 	repeat_this = 0xff;
 
@@ -659,9 +670,9 @@
 	}
 
 	if (!deleted)
-	  while (try && (PortP->PortState & PORT_ISOPEN)) {
+	  while (PortP->PortState & PORT_ISOPEN) {
 	        try--;
-		if (try == 0) {
+		if (time_after (jiffies, end_time)) {
 		  rio_dprintk (RIO_DEBUG_TTY, "Run out of tries - force the bugger shut!\n" );
 		  RIOPreemptiveCmd(p, PortP,FCLOSE);
 		  break;
@@ -673,7 +684,11 @@
 			RIOClearUp( PortP );
 			goto close_end;
 		}
-		RIODelay_ni(PortP, HUNDRED_MS);
+		if (RIODelay(PortP, HUNDRED_MS) == RIO_FAIL) {
+			rio_dprintk (RIO_DEBUG_TTY, "RTA EINTR in delay \n");
+			RIOPreemptiveCmd(p, PortP,FCLOSE);
+			break;
+		}
 	}
 	rio_spin_lock_irqsave(&PortP->portSem, flags);
 	rio_dprintk (RIO_DEBUG_TTY, "Close: try was %d on completion\n", try );
@@ -778,7 +793,7 @@
 ** Other values of len aren't allowed, and will cause
 ** a panic.
 */
-static int RIOShortCommand(struct rio_info *p, struct Port *PortP,
+int RIOShortCommand(struct rio_info *p, struct Port *PortP,
 		int command, int len, int arg)
 {
 	PKT *PacketP;