TTY: 68328serial, remove serial_state and friends

serial_state in 68328serial.h is a duplicated structure. One is
defined in linux/serial.h. So let us use that instead. And since the
serial flags are identical, use ones from there too.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Cc: linux-m68k@lists.linux-m68k.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/68328serial.c

@@ -17,6 +17,7 @@
 #include <asm/dbg.h>
 #include <linux/module.h>
 #include <linux/errno.h>
+#include <linux/serial.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
 #include <linux/timer.h>
@@ -79,18 +80,6 @@ struct m68k_serial *m68k_consinfo = 0;
 
 struct tty_driver *serial_driver;
 
-/* number of characters left in xmit buffer before we ask for more */
-#define WAKEUP_CHARS 256
-
-/* Debugging... DEBUG_INTR is bad to use when one of the zs
- * lines is your console ;(
- */
-#undef SERIAL_DEBUG_INTR
-#undef SERIAL_DEBUG_OPEN
-#undef SERIAL_DEBUG_FLOW
-
-#define RS_ISR_PASS_LIMIT 256
-
 static void change_speed(struct m68k_serial *info);
 
 /*
@@ -363,7 +352,7 @@ static int startup(struct m68k_serial * info)
 	m68328_uart *uart = &uart_addr[info->line];
 	unsigned long flags;
 	
-	if (info->flags & S_INITIALIZED)
+	if (info->flags & ASYNC_INITIALIZED)
 		return 0;
 
 	if (!info->xmit_buf) {
@@ -404,7 +393,7 @@ static int startup(struct m68k_serial * info)
 
 	change_speed(info);
 
-	info->flags |= S_INITIALIZED;
+	info->flags |= ASYNC_INITIALIZED;
 	local_irq_restore(flags);
 	return 0;
 }
@@ -419,7 +408,7 @@ static void shutdown(struct m68k_serial * info)
 	unsigned long	flags;
 
 	uart->ustcnt = 0; /* All off! */
-	if (!(info->flags & S_INITIALIZED))
+	if (!(info->flags & ASYNC_INITIALIZED))
 		return;
 
 	local_irq_save(flags);
@@ -432,7 +421,7 @@ static void shutdown(struct m68k_serial * info)
 	if (info->tty)
 		set_bit(TTY_IO_ERROR, &info->tty->flags);
 	
-	info->flags &= ~S_INITIALIZED;
+	info->flags &= ~ASYNC_INITIALIZED;
 	local_irq_restore(flags);
 }
 
@@ -835,11 +824,11 @@ static int set_serial_info(struct m68k_serial * info,
 		if ((new_serial.baud_base != info->baud_base) ||
 		    (new_serial.type != info->type) ||
 		    (new_serial.close_delay != info->close_delay) ||
-		    ((new_serial.flags & ~S_USR_MASK) !=
-		     (info->flags & ~S_USR_MASK)))
+		    ((new_serial.flags & ~ASYNC_USR_MASK) !=
+		     (info->flags & ~ASYNC_USR_MASK)))
 			return -EPERM;
-		info->flags = ((info->flags & ~S_USR_MASK) |
-			       (new_serial.flags & S_USR_MASK));
+		info->flags = ((info->flags & ~ASYNC_USR_MASK) |
+			       (new_serial.flags & ASYNC_USR_MASK));
 		info->custom_divisor = new_serial.custom_divisor;
 		goto check_and_exit;
 	}
@@ -853,8 +842,8 @@ static int set_serial_info(struct m68k_serial * info,
 	 */
 
 	info->baud_base = new_serial.baud_base;
-	info->flags = ((info->flags & ~S_FLAGS) |
-			(new_serial.flags & S_FLAGS));
+	info->flags = ((info->flags & ~ASYNC_FLAGS) |
+			(new_serial.flags & ASYNC_FLAGS));
 	info->type = new_serial.type;
 	info->close_delay = new_serial.close_delay;
 	info->closing_wait = new_serial.closing_wait;
@@ -1022,13 +1011,13 @@ static void rs_close(struct tty_struct *tty, struct file * filp)
 		local_irq_restore(flags);
 		return;
 	}
-	info->flags |= S_CLOSING;
+	info->flags |= ASYNC_CLOSING;
 	/*
 	 * Now we wait for the transmit buffer to clear; and we notify 
 	 * the line discipline to only process XON/XOFF characters.
 	 */
 	tty->closing = 1;
-	if (info->closing_wait != S_CLOSING_WAIT_NONE)
+	if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE)
 		tty_wait_until_sent(tty, info->closing_wait);
 	/*
 	 * At this point we stop accepting input.  To do this, we
@@ -1064,7 +1053,7 @@ static void rs_close(struct tty_struct *tty, struct file * filp)
 		}
 		wake_up_interruptible(&info->open_wait);
 	}
-	info->flags &= ~(S_NORMAL_ACTIVE|S_CLOSING);
+	info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
 	wake_up_interruptible(&info->close_wait);
 	local_irq_restore(flags);
 }
@@ -1083,7 +1072,7 @@ void rs_hangup(struct tty_struct *tty)
 	shutdown(info);
 	info->event = 0;
 	info->count = 0;
-	info->flags &= ~S_NORMAL_ACTIVE;
+	info->flags &= ~ASYNC_NORMAL_ACTIVE;
 	info->tty = NULL;
 	wake_up_interruptible(&info->open_wait);
 }
@@ -1104,10 +1093,10 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 	 * If the device is in the middle of being closed, then block
 	 * until it's done, and then try again.
 	 */
-	if (info->flags & S_CLOSING) {
+	if (info->flags & ASYNC_CLOSING) {
 		interruptible_sleep_on(&info->close_wait);
 #ifdef SERIAL_DO_RESTART
-		if (info->flags & S_HUP_NOTIFY)
+		if (info->flags & ASYNC_HUP_NOTIFY)
 			return -EAGAIN;
 		else
 			return -ERESTARTSYS;
@@ -1122,7 +1111,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 	 */
 	if ((filp->f_flags & O_NONBLOCK) ||
 	    (tty->flags & (1 << TTY_IO_ERROR))) {
-		info->flags |= S_NORMAL_ACTIVE;
+		info->flags |= ASYNC_NORMAL_ACTIVE;
 		return 0;
 	}
 
@@ -1147,9 +1136,9 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 		local_irq_enable();
 		current->state = TASK_INTERRUPTIBLE;
 		if (tty_hung_up_p(filp) ||
-		    !(info->flags & S_INITIALIZED)) {
+		    !(info->flags & ASYNC_INITIALIZED)) {
 #ifdef SERIAL_DO_RESTART
-			if (info->flags & S_HUP_NOTIFY)
+			if (info->flags & ASYNC_HUP_NOTIFY)
 				retval = -EAGAIN;
 			else
 				retval = -ERESTARTSYS;	
@@ -1158,7 +1147,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 #endif
 			break;
 		}
-		if (!(info->flags & S_CLOSING) && do_clocal)
+		if (!(info->flags & ASYNC_CLOSING) && do_clocal)
 			break;
                 if (signal_pending(current)) {
 			retval = -ERESTARTSYS;
@@ -1176,7 +1165,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 
 	if (retval)
 		return retval;
-	info->flags |= S_NORMAL_ACTIVE;
+	info->flags |= ASYNC_NORMAL_ACTIVE;
 	return 0;
 }	
 

drivers/tty/serial/68328serial.h

@@ -11,69 +11,6 @@
 #ifndef _MC683XX_SERIAL_H
 #define _MC683XX_SERIAL_H
 
-
-struct serial_struct {
-	int	type;
-	int	line;
-	int	port;
-	int	irq;
-	int	flags;
-	int	xmit_fifo_size;
-	int	custom_divisor;
-	int	baud_base;
-	unsigned short	close_delay;
-	char	reserved_char[2];
-	int	hub6;  /* FIXME: We don't have AT&T Hub6 boards! */
-	unsigned short	closing_wait; /* time to wait before closing */
-	unsigned short	closing_wait2; /* no longer used... */
-	int	reserved[4];
-};
-
-/*
- * For the close wait times, 0 means wait forever for serial port to
- * flush its output.  65535 means don't wait at all.
- */
-#define S_CLOSING_WAIT_INF	0
-#define S_CLOSING_WAIT_NONE	65535
-
-/*
- * Definitions for S_struct (and serial_struct) flags field
- */
-#define S_HUP_NOTIFY 0x0001 /* Notify getty on hangups and closes 
-				   on the callout port */
-#define S_FOURPORT  0x0002	/* Set OU1, OUT2 per AST Fourport settings */
-#define S_SAK	0x0004	/* Secure Attention Key (Orange book) */
-#define S_SPLIT_TERMIOS 0x0008 /* Separate termios for dialin/callout */
-
-#define S_SPD_MASK	0x0030
-#define S_SPD_HI	0x0010	/* Use 56000 instead of 38400 bps */
-
-#define S_SPD_VHI	0x0020  /* Use 115200 instead of 38400 bps */
-#define S_SPD_CUST	0x0030  /* Use user-specified divisor */
-
-#define S_SKIP_TEST	0x0040 /* Skip UART test during autoconfiguration */
-#define S_AUTO_IRQ  0x0080 /* Do automatic IRQ during autoconfiguration */
-#define S_SESSION_LOCKOUT 0x0100 /* Lock out cua opens based on session */
-#define S_PGRP_LOCKOUT    0x0200 /* Lock out cua opens based on pgrp */
-#define S_CALLOUT_NOHUP   0x0400 /* Don't do hangups for cua device */
-
-#define S_FLAGS	0x0FFF	/* Possible legal S flags */
-#define S_USR_MASK 0x0430	/* Legal flags that non-privileged
-				 * users can set or reset */
-
-/* Internal flags used only by kernel/chr_drv/serial.c */
-#define S_INITIALIZED	0x80000000 /* Serial port was initialized */
-#define S_CALLOUT_ACTIVE	0x40000000 /* Call out device is active */
-#define S_NORMAL_ACTIVE	0x20000000 /* Normal device is active */
-#define S_BOOT_AUTOCONF	0x10000000 /* Autoconfigure port on bootup */
-#define S_CLOSING		0x08000000 /* Serial port is closing */
-#define S_CTS_FLOW		0x04000000 /* Do CTS flow control */
-#define S_CHECK_CD		0x02000000 /* i.e., CLOCAL */
-
-/* Software state per channel */
-
-#ifdef __KERNEL__
-
 /*
  * I believe this is the optimal setting that reduces the number of interrupts.
  * At high speeds the output might become a little "bursted" (use USTCNT_TXHE
@@ -162,25 +99,12 @@ struct m68k_serial {
 	wait_queue_head_t	close_wait;
 };
 
-
 #define SERIAL_MAGIC 0x5301
 
-/*
- * The size of the serial xmit buffer is 1 page, or 4096 bytes
- */
-#define SERIAL_XMIT_SIZE 4096
-
-/*
- * Events are used to schedule things to happen at timer-interrupt
- * time, instead of at rs interrupt time.
- */
-#define RS_EVENT_WRITE_WAKEUP	0
-
 /* 
  * Define the number of ports supported and their irqs.
  */
 #define NR_PORTS 1
 #define UART_IRQ_DEFNS {UART_IRQ_NUM}
 
-#endif /* __KERNEL__ */
 #endif /* !(_MC683XX_SERIAL_H) */