1/* 
 2 * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com)
 3 * Licensed under the GPL
 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
15struct 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
30extern void chan_interrupt(struct list_head *chans, struct delayed_work *task,
31			   struct tty_struct *tty, int irq);
32extern int parse_chan_pair(char *str, struct line *line, int device,
33			   const struct chan_opts *opts, char **error_out);
34extern int write_chan(struct list_head *chans, const char *buf, int len,
35			     int write_irq);
36extern int console_write_chan(struct list_head *chans, const char *buf, 
37			      int len);
38extern int console_open_chan(struct line *line, struct console *co);
39extern void deactivate_chan(struct list_head *chans, int irq);
40extern void reactivate_chan(struct list_head *chans, int irq);
41extern void chan_enable_winch(struct list_head *chans, struct tty_struct *tty);
42extern int enable_chan(struct line *line);
43extern void close_chan(struct list_head *chans, int delay_free_irq);
44extern int chan_window_size(struct list_head *chans, 
45			     unsigned short *rows_out, 
46			     unsigned short *cols_out);
47extern int chan_config_string(struct list_head *chans, char *str, int size,
48			      char **error_out);
49
50#endif