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Date: Mon, 2 Apr 2012 13:54:35 +0200
From: Jiri Slaby <jslaby@...e.cz>
To: gregkh@...uxfoundation.org
Cc: alan@...ux.intel.com, linux-kernel@...r.kernel.org,
jirislaby@...il.com, Geert Uytterhoeven <geert@...ux-m68k.org>,
linux-m68k@...ts.linux-m68k.org
Subject: [PATCH 51/69] 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@...e.cz>
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: linux-m68k@...ts.linux-m68k.org
---
drivers/tty/serial/68328serial.c | 55 +++++++++++----------------
drivers/tty/serial/68328serial.h | 76 --------------------------------------
2 files changed, 22 insertions(+), 109 deletions(-)
diff --git a/drivers/tty/serial/68328serial.c b/drivers/tty/serial/68328serial.c
index 5ce7825..bf5f811 100644
--- a/drivers/tty/serial/68328serial.c
+++ b/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;
}
diff --git a/drivers/tty/serial/68328serial.h b/drivers/tty/serial/68328serial.h
index 3d2faab..a804ea5 100644
--- a/drivers/tty/serial/68328serial.h
+++ b/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) */
--
1.7.9.2
--
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