gs: use tty_port

Switch drivers using the old "generic serial" driver to use the tty_port
structures
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/char/rio/rio_linux.c

@@ -431,7 +431,7 @@ static void rio_disable_tx_interrupts(void *ptr)
 {
 	func_enter();
 
-	/*  port->gs.flags &= ~GS_TX_INTEN; */
+	/*  port->gs.port.flags &= ~GS_TX_INTEN; */
 
 	func_exit();
 }
@@ -455,7 +455,7 @@ static void rio_enable_tx_interrupts(void *ptr)
 	 * In general we cannot count on "tx empty" interrupts, although
 	 * the interrupt routine seems to be able to tell the difference.
 	 */
-	PortP->gs.flags &= ~GS_TX_INTEN;
+	PortP->gs.port.flags &= ~GS_TX_INTEN;
 
 	func_exit();
 }
@@ -510,7 +510,7 @@ static void rio_shutdown_port(void *ptr)
 	func_enter();
 
 	PortP = (struct Port *) ptr;
-	PortP->gs.tty = NULL;
+	PortP->gs.port.tty = NULL;
 	func_exit();
 }
 
@@ -529,7 +529,7 @@ static void rio_hungup(void *ptr)
 	func_enter();
 
 	PortP = (struct Port *) ptr;
-	PortP->gs.tty = NULL;
+	PortP->gs.port.tty = NULL;
 
 	func_exit();
 }
@@ -549,12 +549,12 @@ static void rio_close(void *ptr)
 
 	riotclose(ptr);
 
-	if (PortP->gs.count) {
-		printk(KERN_ERR "WARNING port count:%d\n", PortP->gs.count);
-		PortP->gs.count = 0;
+	if (PortP->gs.port.count) {
+		printk(KERN_ERR "WARNING port count:%d\n", PortP->gs.port.count);
+		PortP->gs.port.count = 0;
 	}
 
-	PortP->gs.tty = NULL;
+	PortP->gs.port.tty = NULL;
 	func_exit();
 }
 
@@ -849,8 +849,8 @@ static int rio_init_datastructures(void)
 		/*
 		 * Initializing wait queue
 		 */
-		init_waitqueue_head(&port->gs.open_wait);
-		init_waitqueue_head(&port->gs.close_wait);
+		init_waitqueue_head(&port->gs.port.open_wait);
+		init_waitqueue_head(&port->gs.port.close_wait);
 	}
 #else
 	/* We could postpone initializing them to when they are configured. */

drivers/char/rio/riocmd.c

@@ -484,12 +484,12 @@ static int RIOCommandRup(struct rio_info *p, uint Rup, struct Host *HostP, struc
 				 ** If the device is a modem, then check the modem
 				 ** carrier.
 				 */
-				if (PortP->gs.tty == NULL)
+				if (PortP->gs.port.tty == NULL)
 					break;
-				if (PortP->gs.tty->termios == NULL)
+				if (PortP->gs.port.tty->termios == NULL)
 					break;
 
-				if (!(PortP->gs.tty->termios->c_cflag & CLOCAL) && ((PortP->State & (RIO_MOPEN | RIO_WOPEN)))) {
+				if (!(PortP->gs.port.tty->termios->c_cflag & CLOCAL) && ((PortP->State & (RIO_MOPEN | RIO_WOPEN)))) {
 
 					rio_dprintk(RIO_DEBUG_CMD, "Is there a Carrier?\n");
 					/*
@@ -506,7 +506,7 @@ static int RIOCommandRup(struct rio_info *p, uint Rup, struct Host *HostP, struc
 							 ** wakeup anyone in WOPEN
 							 */
 							if (PortP->State & (PORT_ISOPEN | RIO_WOPEN))
-								wake_up_interruptible(&PortP->gs.open_wait);
+								wake_up_interruptible(&PortP->gs.port.open_wait);
 						}
 					} else {
 						/*
@@ -514,7 +514,7 @@ static int RIOCommandRup(struct rio_info *p, uint Rup, struct Host *HostP, struc
 						 */
 						if (PortP->State & RIO_CARR_ON) {
 							if (PortP->State & (PORT_ISOPEN | RIO_WOPEN | RIO_MOPEN))
-								tty_hangup(PortP->gs.tty);
+								tty_hangup(PortP->gs.port.tty);
 							PortP->State &= ~RIO_CARR_ON;
 							rio_dprintk(RIO_DEBUG_CMD, "Carrirer just went down\n");
 						}

drivers/char/rio/riointr.c

@@ -102,7 +102,7 @@ void RIOTxEnable(char *en)
 
 	PortP = (struct Port *) en;
 	p = (struct rio_info *) PortP->p;
-	tty = PortP->gs.tty;
+	tty = PortP->gs.port.tty;
 
 
 	rio_dprintk(RIO_DEBUG_INTR, "tx port %d: %d chars queued.\n", PortP->PortNum, PortP->gs.xmit_cnt);
@@ -158,7 +158,7 @@ void RIOTxEnable(char *en)
 	rio_spin_unlock_irqrestore(&PortP->portSem, flags);
 
 	if (PortP->gs.xmit_cnt <= (PortP->gs.wakeup_chars + 2 * PKT_MAX_DATA_LEN))
-		tty_wakeup(PortP->gs.tty);
+		tty_wakeup(PortP->gs.port.tty);
 
 }
 
@@ -241,7 +241,7 @@ void RIOServiceHost(struct rio_info *p, struct Host *HostP)
 			 ** find corresponding tty structure. The process of mapping
 			 ** the ports puts these here.
 			 */
-			ttyP = PortP->gs.tty;
+			ttyP = PortP->gs.port.tty;
 
 			/*
 			 ** Lock the port before we begin working on it.
@@ -335,7 +335,7 @@ void RIOServiceHost(struct rio_info *p, struct Host *HostP)
 			 ** find corresponding tty structure. The process of mapping
 			 ** the ports puts these here.
 			 */
-			ttyP = PortP->gs.tty;
+			ttyP = PortP->gs.port.tty;
 			/* If ttyP is NULL, the port is getting closed. Forget about it. */
 			if (!ttyP) {
 				rio_dprintk(RIO_DEBUG_INTR, "no tty, so skipping.\n");
@@ -542,7 +542,7 @@ static void RIOReceive(struct rio_info *p, struct Port *PortP)
 
 	intCount++;
 
-	TtyP = PortP->gs.tty;
+	TtyP = PortP->gs.port.tty;
 	if (!TtyP) {
 		rio_dprintk(RIO_DEBUG_INTR, "RIOReceive: tty is null. \n");
 		return;

drivers/char/rio/rioparam.c

@@ -160,7 +160,7 @@ int RIOParam(struct Port *PortP, int cmd, int Modem, int SleepFlag)
 
 	func_enter();
 
-	TtyP = PortP->gs.tty;
+	TtyP = PortP->gs.port.tty;
 
 	rio_dprintk(RIO_DEBUG_PARAM, "RIOParam: Port:%d cmd:%d Modem:%d SleepFlag:%d Mapped: %d, tty=%p\n", PortP->PortNum, cmd, Modem, SleepFlag, PortP->Mapped, TtyP);
 

drivers/char/rio/riotty.c

@@ -140,14 +140,14 @@ int riotopen(struct tty_struct *tty, struct file *filp)
 
 	tty->driver_data = PortP;
 
-	PortP->gs.tty = tty;
-	PortP->gs.count++;
+	PortP->gs.port.tty = tty;
+	PortP->gs.port.count++;
 
 	rio_dprintk(RIO_DEBUG_TTY, "%d bytes in tx buffer\n", PortP->gs.xmit_cnt);
 
 	retval = gs_init_port(&PortP->gs);
 	if (retval) {
-		PortP->gs.count--;
+		PortP->gs.port.count--;
 		return -ENXIO;
 	}
 	/*
@@ -293,7 +293,7 @@ int riotopen(struct tty_struct *tty, struct file *filp)
 	 ** insert test for carrier here. -- ???
 	 ** I already see that test here. What's the deal? -- REW
 	 */
-	if ((PortP->gs.tty->termios->c_cflag & CLOCAL) ||
+	if ((PortP->gs.port.tty->termios->c_cflag & CLOCAL) ||
 			(PortP->ModemState & RIOC_MSVR1_CD)) {
 		rio_dprintk(RIO_DEBUG_TTY, "open(%d) Modem carr on\n", SysPort);
 		/*
@@ -301,16 +301,16 @@ int riotopen(struct tty_struct *tty, struct file *filp)
 		   wakeup((caddr_t) &tp->tm.c_canq);
 		 */
 		PortP->State |= RIO_CARR_ON;
-		wake_up_interruptible(&PortP->gs.open_wait);
+		wake_up_interruptible(&PortP->gs.port.open_wait);
 	} else {	/* no carrier - wait for DCD */
 			/*
-		   while (!(PortP->gs.tty->termios->c_state & CARR_ON) &&
+		   while (!(PortP->gs.port.tty->termios->c_state & CARR_ON) &&
 		   !(filp->f_flags & O_NONBLOCK) && !p->RIOHalted )
 		 */
 		while (!(PortP->State & RIO_CARR_ON) && !(filp->f_flags & O_NONBLOCK) && !p->RIOHalted) {
 				rio_dprintk(RIO_DEBUG_TTY, "open(%d) sleeping for carr on\n", SysPort);
 			/*
-			   PortP->gs.tty->termios->c_state |= WOPEN;
+			   PortP->gs.port.tty->termios->c_state |= WOPEN;
 			 */
 			PortP->State |= RIO_WOPEN;
 			rio_spin_unlock_irqrestore(&PortP->portSem, flags);
@@ -380,7 +380,7 @@ int riotclose(void *ptr)
 	/* PortP = p->RIOPortp[SysPort]; */
 	rio_dprintk(RIO_DEBUG_TTY, "Port is at address %p\n", PortP);
 	/* tp = PortP->TtyP; *//* Get tty */
-	tty = PortP->gs.tty;
+	tty = PortP->gs.port.tty;
 	rio_dprintk(RIO_DEBUG_TTY, "TTY is at address %p\n", tty);
 
 	if (PortP->gs.closing_wait)

include/linux/generic_serial.h

@@ -14,6 +14,7 @@
 
 #ifdef __KERNEL__
 #include <linux/mutex.h>
+#include <linux/tty.h>
 
 struct real_driver {
   void                    (*disable_tx_interrupts) (void *);
@@ -33,17 +34,12 @@ struct real_driver {
 
 struct gs_port {
   int                     magic;
+  struct tty_port	  port;
   unsigned char           *xmit_buf; 
   int                     xmit_head;
   int                     xmit_tail;
   int                     xmit_cnt;
   struct mutex            port_write_mutex;
-  int                     flags;
-  wait_queue_head_t       open_wait;
-  wait_queue_head_t       close_wait;
-  int                     count;
-  int                     blocked_open;
-  struct tty_struct       *tty;
   unsigned long           event;
   unsigned short          closing_wait;
   int                     close_delay;