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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com) | |
3 | * Licensed under the GPL | |
4 | */ | |
5 | ||
6 | #ifndef __LINE_H__ | |
7 | #define __LINE_H__ | |
8 | ||
9 | #include "linux/list.h" | |
10 | #include "linux/workqueue.h" | |
11 | #include "linux/tty.h" | |
12 | #include "linux/interrupt.h" | |
b97b77cc | 13 | #include "linux/spinlock.h" |
1da177e4 LT |
14 | #include "chan_user.h" |
15 | #include "mconsole_kern.h" | |
16 | ||
17 | struct line_driver { | |
18 | char *name; | |
19 | char *device_name; | |
1da177e4 LT |
20 | short major; |
21 | short minor_start; | |
22 | short type; | |
23 | short subtype; | |
24 | int read_irq; | |
25 | char *read_irq_name; | |
26 | int write_irq; | |
27 | char *write_irq_name; | |
28 | char *symlink_from; | |
29 | char *symlink_to; | |
30 | struct mc_device mc; | |
31 | }; | |
32 | ||
33 | struct line { | |
165dc591 | 34 | struct tty_struct *tty; |
1da177e4 LT |
35 | char *init_str; |
36 | int init_pri; | |
37 | struct list_head chan_list; | |
38 | int valid; | |
39 | int count; | |
e4dcee80 | 40 | int throttled; |
b97b77cc PBG |
41 | /*This lock is actually, mostly, local to*/ |
42 | spinlock_t lock; | |
43 | ||
44 | /* Yes, this is a real circular buffer. | |
45 | * XXX: And this should become a struct kfifo! | |
46 | * | |
47 | * buffer points to a buffer allocated on demand, of length | |
48 | * LINE_BUFSIZE, head to the start of the ring, tail to the end.*/ | |
1da177e4 LT |
49 | char *buffer; |
50 | char *head; | |
51 | char *tail; | |
b97b77cc | 52 | |
1da177e4 | 53 | int sigio; |
a2ce7740 | 54 | struct delayed_work task; |
5e7672ec | 55 | const struct line_driver *driver; |
1da177e4 LT |
56 | int have_irq; |
57 | }; | |
58 | ||
59 | #define LINE_INIT(str, d) \ | |
4d338e1a AV |
60 | { .init_str = str, \ |
61 | .init_pri = INIT_STATIC, \ | |
62 | .valid = 1, \ | |
63 | .lock = SPIN_LOCK_UNLOCKED, \ | |
64 | .driver = d } | |
1da177e4 LT |
65 | |
66 | struct lines { | |
67 | int num; | |
68 | }; | |
69 | ||
4d338e1a | 70 | #define LINES_INIT(n) { .num = n } |
1da177e4 LT |
71 | |
72 | extern void line_close(struct tty_struct *tty, struct file * filp); | |
1f80171e | 73 | extern int line_open(struct line *lines, struct tty_struct *tty); |
d571cd18 JD |
74 | extern int line_setup(struct line *lines, unsigned int sizeof_lines, |
75 | char *init); | |
d50084a2 JD |
76 | extern int line_write(struct tty_struct *tty, const unsigned char *buf, |
77 | int len); | |
1da177e4 LT |
78 | extern void line_put_char(struct tty_struct *tty, unsigned char ch); |
79 | extern void line_set_termios(struct tty_struct *tty, struct termios * old); | |
80 | extern int line_chars_in_buffer(struct tty_struct *tty); | |
b97b77cc PBG |
81 | extern void line_flush_buffer(struct tty_struct *tty); |
82 | extern void line_flush_chars(struct tty_struct *tty); | |
1da177e4 LT |
83 | extern int line_write_room(struct tty_struct *tty); |
84 | extern int line_ioctl(struct tty_struct *tty, struct file * file, | |
85 | unsigned int cmd, unsigned long arg); | |
e4dcee80 JD |
86 | extern void line_throttle(struct tty_struct *tty); |
87 | extern void line_unthrottle(struct tty_struct *tty); | |
b97b77cc | 88 | |
1da177e4 | 89 | extern char *add_xterm_umid(char *base); |
165dc591 JD |
90 | extern int line_setup_irq(int fd, int input, int output, struct line *line, |
91 | void *data); | |
1da177e4 | 92 | extern void line_close_chan(struct line *line); |
d50084a2 | 93 | extern struct tty_driver * line_register_devfs(struct lines *set, |
b68e31d0 JD |
94 | struct line_driver *line_driver, |
95 | const struct tty_operations *driver, | |
96 | struct line *lines, int nlines); | |
1f80171e | 97 | extern void lines_init(struct line *lines, int nlines, struct chan_opts *opts); |
1da177e4 | 98 | extern void close_lines(struct line *lines, int nlines); |
b97b77cc | 99 | |
d50084a2 | 100 | extern int line_config(struct line *lines, unsigned int sizeof_lines, |
5e7672ec | 101 | char *str, const struct chan_opts *opts); |
29d56cfe JD |
102 | extern int line_id(char **str, int *start_out, int *end_out); |
103 | extern int line_remove(struct line *lines, unsigned int sizeof_lines, int n); | |
d50084a2 JD |
104 | extern int line_get_config(char *dev, struct line *lines, |
105 | unsigned int sizeof_lines, char *str, | |
1da177e4 LT |
106 | int size, char **error_out); |
107 | ||
108 | #endif |