1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com) |
4 | */ |
5 | |
6 | #ifndef __CHAN_KERN_H__ |
7 | #define __CHAN_KERN_H__ |
8 | |
9 | #include <linux/tty.h> |
10 | #include <linux/list.h> |
11 | #include <linux/console.h> |
12 | #include "chan_user.h" |
13 | #include "line.h" |
14 | |
15 | struct chan { |
16 | struct list_head list; |
17 | struct list_head free_list; |
18 | struct line *line; |
19 | char *dev; |
20 | unsigned int primary:1; |
21 | unsigned int input:1; |
22 | unsigned int output:1; |
23 | unsigned int opened:1; |
24 | unsigned int enabled:1; |
25 | int fd; |
26 | const struct chan_ops *ops; |
27 | void *data; |
28 | }; |
29 | |
30 | extern void chan_interrupt(struct line *line, int irq); |
31 | extern int parse_chan_pair(char *str, struct line *line, int device, |
32 | const struct chan_opts *opts, char **error_out); |
33 | extern int write_chan(struct chan *chan, const u8 *buf, size_t len, |
34 | int write_irq); |
35 | extern int console_write_chan(struct chan *chan, const char *buf, |
36 | int len); |
37 | extern int console_open_chan(struct line *line, struct console *co); |
38 | extern void deactivate_chan(struct chan *chan, int irq); |
39 | extern void chan_enable_winch(struct chan *chan, struct tty_port *port); |
40 | extern int enable_chan(struct line *line); |
41 | extern void close_chan(struct line *line); |
42 | extern int chan_window_size(struct line *line, |
43 | unsigned short *rows_out, |
44 | unsigned short *cols_out); |
45 | extern int chan_config_string(struct line *line, char *str, int size, |
46 | char **error_out); |
47 | |
48 | #endif |
49 | |