chan.h

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/* 
 * Copyright (C) 2000, 2001 Jeff Dike ([email protected])
 * Licensed under the GPL
 */

#ifndef __CHAN_KERN_H__
#define __CHAN_KERN_H__

#include <linux/tty.h>
#include <linux/list.h>
#include <linux/console.h>
#include "chan_user.h"
#include "line.h"

struct chan {
    struct list_head list;
    struct list_head free_list;
    struct line *line;
    char *dev;
    unsigned int primary:1;
    unsigned int input:1;
    unsigned int output:1;
    unsigned int opened:1;
    unsigned int enabled:1;
    int fd;
    const struct chan_ops *ops;
    void *data;
};

extern void chan_interrupt(struct line *line,
               struct tty_struct *tty, int irq);
extern int parse_chan_pair(char *str, struct line *line, int device,
               const struct chan_opts *opts, char **error_out);
extern int write_chan(struct chan *chan, const char *buf, int len,
                 int write_irq);
extern int console_write_chan(struct chan *chan, const char *buf, 
                  int len);
extern int console_open_chan(struct line *line, struct console *co);
extern void deactivate_chan(struct chan *chan, int irq);
extern void reactivate_chan(struct chan *chan, int irq);
extern void chan_enable_winch(struct chan *chan, struct tty_struct *tty);
extern int enable_chan(struct line *line);
extern void close_chan(struct line *line);
extern int chan_window_size(struct line *line, 
                 unsigned short *rows_out, 
                 unsigned short *cols_out);
extern int chan_config_string(struct line *line, char *str, int size,
                  char **error_out);

#endif