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nexedi
linux
Commits
1684b20f
Commit
1684b20f
authored
Jun 11, 2003
by
Alexander Viro
Committed by
Linus Torvalds
Jun 11, 2003
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[PATCH] tty_driver refcounting
arch/mips/baget/vacserial.c converted to dynamic allocation
parent
71d84158
Changes
1
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1 changed file
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42 additions
and
37 deletions
+42
-37
arch/mips/baget/vacserial.c
arch/mips/baget/vacserial.c
+42
-37
No files found.
arch/mips/baget/vacserial.c
View file @
1684b20f
...
...
@@ -29,7 +29,7 @@
#if defined(MODULE) && defined(SERIAL_DEBUG_MCOUNT)
#define DBG_CNT(s) baget_printk("(%s):[%x] refc=%d, serc=%d, ttyc=%d-> %s\n", \
tty->name,(info->flags),serial_driver
.
refcount,info->count,tty->count,s)
tty->name,(info->flags),serial_driver
->
refcount,info->count,tty->count,s)
#else
#define DBG_CNT(s)
#endif
...
...
@@ -95,7 +95,7 @@ static char *serial_version = "4.26";
static
DECLARE_TASK_QUEUE
(
tq_serial
);
static
struct
tty_driver
serial_driver
;
static
struct
tty_driver
*
serial_driver
;
/* number of characters left in xmit buffer before we ask for more */
#define WAKEUP_CHARS 256
...
...
@@ -2251,6 +2251,28 @@ static void rs_timer(unsigned long dummy)
mod_timer
(
&
vacs_timer
,
jiffies
+
IRQ_timeout
[
0
]
-
2
);
}
}
static
struct
tty_operations
rs_ops
=
{
.
open
=
rs_open
,
.
close
=
rs_close
,
.
write
=
rs_write
,
.
put_char
=
rs_put_char
,
.
flush_chars
=
rs_flush_chars
,
.
write_room
=
rs_write_room
,
.
chars_in_buffer
=
rs_chars_in_buffer
,
.
flush_buffer
=
rs_flush_buffer
,
.
ioctl
=
rs_ioctl
,
.
throttle
=
rs_throttle
,
.
unthrottle
=
rs_unthrottle
,
.
send_xchar
=
rs_send_xchar
,
.
set_termios
=
rs_set_termios
,
.
stop
=
rs_stop
,
.
start
=
rs_start
,
.
hangup
=
rs_hangup
,
.
break_ctl
=
rs_break
,
.
wait_until_sent
=
rs_wait_until_sent
,
.
read_proc
=
rs_read_proc
,
};
/*
* The serial driver boot-time initialization code!
...
...
@@ -2300,45 +2322,27 @@ int __init rs_init(void)
#endif
#endif
serial_driver
=
alloc_tty_driver
(
NR_PORTS
);
if
(
!
serial_driver
)
return
-
ENOMEM
;
show_serial_version
();
/* Initialize the tty_driver structure */
memset
(
&
serial_driver
,
0
,
sizeof
(
struct
tty_driver
));
serial_driver
.
magic
=
TTY_DRIVER_MAGIC
;
serial_driver
.
driver_name
=
"serial"
;
serial_driver
.
name
=
"ttyS"
;
serial_driver
.
major
=
TTY_MAJOR
;
serial_driver
.
minor_start
=
64
;
serial_driver
.
num
=
NR_PORTS
;
serial_driver
.
type
=
TTY_DRIVER_TYPE_SERIAL
;
serial_driver
.
subtype
=
SERIAL_TYPE_NORMAL
;
serial_driver
.
init_termios
=
tty_std_termios
;
serial_driver
.
init_termios
.
c_cflag
=
serial_driver
->
driver_name
=
"serial"
;
serial_driver
->
name
=
"ttyS"
;
serial_driver
->
major
=
TTY_MAJOR
;
serial_driver
->
minor_start
=
64
;
serial_driver
->
type
=
TTY_DRIVER_TYPE_SERIAL
;
serial_driver
->
subtype
=
SERIAL_TYPE_NORMAL
;
serial_driver
->
init_termios
=
tty_std_termios
;
serial_driver
->
init_termios
.
c_cflag
=
B9600
|
CS8
|
CREAD
|
HUPCL
|
CLOCAL
;
serial_driver
.
flags
=
TTY_DRIVER_REAL_RAW
;
serial_driver
.
open
=
rs_open
;
serial_driver
.
close
=
rs_close
;
serial_driver
.
write
=
rs_write
;
serial_driver
.
put_char
=
rs_put_char
;
serial_driver
.
flush_chars
=
rs_flush_chars
;
serial_driver
.
write_room
=
rs_write_room
;
serial_driver
.
chars_in_buffer
=
rs_chars_in_buffer
;
serial_driver
.
flush_buffer
=
rs_flush_buffer
;
serial_driver
.
ioctl
=
rs_ioctl
;
serial_driver
.
throttle
=
rs_throttle
;
serial_driver
.
unthrottle
=
rs_unthrottle
;
serial_driver
.
send_xchar
=
rs_send_xchar
;
serial_driver
.
set_termios
=
rs_set_termios
;
serial_driver
.
stop
=
rs_stop
;
serial_driver
.
start
=
rs_start
;
serial_driver
.
hangup
=
rs_hangup
;
serial_driver
.
break_ctl
=
rs_break
;
serial_driver
.
wait_until_sent
=
rs_wait_until_sent
;
serial_driver
.
read_proc
=
rs_read_proc
;
serial_driver
->
flags
=
TTY_DRIVER_REAL_RAW
;
tty_set_operations
(
serial_driver
,
&
rs_ops
);
if
(
tty_register_driver
(
&
serial_driver
))
if
(
tty_register_driver
(
serial_driver
))
panic
(
"Couldn't register serial driver
\n
"
);
for
(
i
=
0
,
state
=
rs_table
;
i
<
NR_PORTS
;
i
++
,
state
++
)
{
...
...
@@ -2460,10 +2464,11 @@ void cleanup_module(void)
del_timer_sync
(
&
vacs_timer
);
remove_bh
(
SERIAL_BH
);
if
((
e1
=
tty_unregister_driver
(
&
serial_driver
)))
if
((
e1
=
tty_unregister_driver
(
serial_driver
)))
printk
(
"SERIAL: failed to unregister serial driver (%d)
\n
"
,
e1
);
restore_flags
(
flags
);
put_tty_driver
(
serial_driver
);
for
(
i
=
0
;
i
<
NR_PORTS
;
i
++
)
{
if
(
rs_table
[
i
].
type
!=
PORT_UNKNOWN
)
...
...
@@ -2551,7 +2556,7 @@ static void serial_console_write(struct console *co, const char *s,
static
struct
tty_driver
*
serial_console_device
(
struct
console
*
c
,
int
*
index
)
{
*
index
=
c
->
index
;
return
&
serial_driver
;
return
serial_driver
;
}
/*
...
...
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