/*
* Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com)
* 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;
struct chan_ops *ops;
void *data;
};
extern void chan_interrupt(struct list_head *chans, struct work_struct *task,
struct tty_struct *tty, int irq);
extern int parse_chan_pair(char *str, struct line *line, int device,
struct chan_opts *opts);
extern int open_chan(struct list_head *chans);
extern int write_chan(struct list_head *chans, const char *buf, int len,
int write_irq);
extern int console_write_chan(struct list_head *chans, const char *buf,
int len);
extern int console_open_chan(struct line *line, struct console *co,
struct chan_opts *opts);
extern void deactivate_chan(struct list_head *chans, int irq);
extern void reactivate_chan(struct list_head *chans, int irq);
extern void chan_enable_winch(struct list_head *chans, struct tty_struct *tty);
extern void enable_chan(struct line *line);
extern void close_chan(struct list_head *chans, int delay_free_irq);
extern int chan_window_size(struct list_head *chans,
unsigned short *rows_out,
unsigned short *cols_out);
extern int chan_out_fd(struct list_head *chans);
extern int chan_config_string(struct list_head *chans, char *str, int size,
char **error_out);
#endif
