2 * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
9 #include "linux/list.h"
10 #include "linux/workqueue.h"
11 #include "linux/tty.h"
12 #include "linux/interrupt.h"
13 #include "linux/spinlock.h"
14 #include "linux/mutex.h"
15 #include "chan_user.h"
16 #include "mconsole_kern.h"
35 struct tty_struct
*tty
;
36 spinlock_t count_lock
;
39 struct mutex open_mutex
;
42 struct list_head chan_list
;
44 /*This lock is actually, mostly, local to*/
47 /* Yes, this is a real circular buffer.
48 * XXX: And this should become a struct kfifo!
50 * buffer points to a buffer allocated on demand, of length
51 * LINE_BUFSIZE, head to the start of the ring, tail to the end.*/
57 struct delayed_work task
;
58 const struct line_driver
*driver
;
62 #define LINE_INIT(str, d) \
63 { .count_lock = SPIN_LOCK_UNLOCKED, \
65 .init_pri = INIT_STATIC, \
67 .lock = SPIN_LOCK_UNLOCKED, \
74 #define LINES_INIT(n) { .num = n }
76 extern void line_close(struct tty_struct
*tty
, struct file
* filp
);
77 extern int line_open(struct line
*lines
, struct tty_struct
*tty
);
78 extern int line_setup(struct line
*lines
, unsigned int sizeof_lines
,
79 char *init
, char **error_out
);
80 extern int line_write(struct tty_struct
*tty
, const unsigned char *buf
,
82 extern void line_put_char(struct tty_struct
*tty
, unsigned char ch
);
83 extern void line_set_termios(struct tty_struct
*tty
, struct ktermios
* old
);
84 extern int line_chars_in_buffer(struct tty_struct
*tty
);
85 extern void line_flush_buffer(struct tty_struct
*tty
);
86 extern void line_flush_chars(struct tty_struct
*tty
);
87 extern int line_write_room(struct tty_struct
*tty
);
88 extern int line_ioctl(struct tty_struct
*tty
, struct file
* file
,
89 unsigned int cmd
, unsigned long arg
);
90 extern void line_throttle(struct tty_struct
*tty
);
91 extern void line_unthrottle(struct tty_struct
*tty
);
93 extern char *add_xterm_umid(char *base
);
94 extern int line_setup_irq(int fd
, int input
, int output
, struct line
*line
,
96 extern void line_close_chan(struct line
*line
);
97 extern struct tty_driver
* line_register_devfs(struct lines
*set
,
98 struct line_driver
*line_driver
,
99 const struct tty_operations
*driver
,
100 struct line
*lines
, int nlines
);
101 extern void lines_init(struct line
*lines
, int nlines
, struct chan_opts
*opts
);
102 extern void close_lines(struct line
*lines
, int nlines
);
104 extern int line_config(struct line
*lines
, unsigned int sizeof_lines
,
105 char *str
, const struct chan_opts
*opts
,
107 extern int line_id(char **str
, int *start_out
, int *end_out
);
108 extern int line_remove(struct line
*lines
, unsigned int sizeof_lines
, int n
,
110 extern int line_get_config(char *dev
, struct line
*lines
,
111 unsigned int sizeof_lines
, char *str
,
112 int size
, char **error_out
);