100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com)
|
||
|
|
* Licensed under the GPL
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __LINE_H__
|
||
|
|
#define __LINE_H__
|
||
|
|
|
||
|
|
#include <linux/list.h>
|
||
|
|
#include <linux/workqueue.h>
|
||
|
|
#include <linux/tty.h>
|
||
|
|
#include <linux/interrupt.h>
|
||
|
|
#include <linux/spinlock.h>
|
||
|
|
#include <linux/mutex.h>
|
||
|
|
#include "chan_user.h"
|
||
|
|
#include "mconsole_kern.h"
|
||
|
|
|
||
|
|
/* There's only two modifiable fields in this - .mc.list and .driver */
|
||
|
|
struct line_driver {
|
||
|
|
const char *name;
|
||
|
|
const char *device_name;
|
||
|
|
const short major;
|
||
|
|
const short minor_start;
|
||
|
|
const short type;
|
||
|
|
const short subtype;
|
||
|
|
const int read_irq;
|
||
|
|
const char *read_irq_name;
|
||
|
|
const int write_irq;
|
||
|
|
const char *write_irq_name;
|
||
|
|
struct mc_device mc;
|
||
|
|
struct tty_driver *driver;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct line {
|
||
|
|
struct tty_port port;
|
||
|
|
int valid;
|
||
|
|
|
||
|
|
char *init_str;
|
||
|
|
struct list_head chan_list;
|
||
|
|
struct chan *chan_in, *chan_out;
|
||
|
|
|
||
|
|
/*This lock is actually, mostly, local to*/
|
||
|
|
spinlock_t lock;
|
||
|
|
int throttled;
|
||
|
|
/* Yes, this is a real circular buffer.
|
||
|
|
* XXX: And this should become a struct kfifo!
|
||
|
|
*
|
||
|
|
* buffer points to a buffer allocated on demand, of length
|
||
|
|
* LINE_BUFSIZE, head to the start of the ring, tail to the end.*/
|
||
|
|
char *buffer;
|
||
|
|
char *head;
|
||
|
|
char *tail;
|
||
|
|
|
||
|
|
int sigio;
|
||
|
|
struct delayed_work task;
|
||
|
|
const struct line_driver *driver;
|
||
|
|
};
|
||
|
|
|
||
|
|
extern void line_close(struct tty_struct *tty, struct file * filp);
|
||
|
|
extern int line_open(struct tty_struct *tty, struct file *filp);
|
||
|
|
extern int line_install(struct tty_driver *driver, struct tty_struct *tty,
|
||
|
|
struct line *line);
|
||
|
|
extern void line_cleanup(struct tty_struct *tty);
|
||
|
|
extern void line_hangup(struct tty_struct *tty);
|
||
|
|
extern int line_setup(char **conf, unsigned nlines, char **def,
|
||
|
|
char *init, char *name);
|
||
|
|
extern int line_write(struct tty_struct *tty, const unsigned char *buf,
|
||
|
|
int len);
|
||
|
|
extern int line_put_char(struct tty_struct *tty, unsigned char ch);
|
||
|
|
extern void line_set_termios(struct tty_struct *tty, struct ktermios * old);
|
||
|
|
extern int line_chars_in_buffer(struct tty_struct *tty);
|
||
|
|
extern void line_flush_buffer(struct tty_struct *tty);
|
||
|
|
extern void line_flush_chars(struct tty_struct *tty);
|
||
|
|
extern int line_write_room(struct tty_struct *tty);
|
||
|
|
extern void line_throttle(struct tty_struct *tty);
|
||
|
|
extern void line_unthrottle(struct tty_struct *tty);
|
||
|
|
|
||
|
|
extern char *add_xterm_umid(char *base);
|
||
|
|
extern int line_setup_irq(int fd, int input, int output, struct line *line,
|
||
|
|
void *data);
|
||
|
|
extern void line_close_chan(struct line *line);
|
||
|
|
extern int register_lines(struct line_driver *line_driver,
|
||
|
|
const struct tty_operations *driver,
|
||
|
|
struct line *lines, int nlines);
|
||
|
|
extern int setup_one_line(struct line *lines, int n, char *init,
|
||
|
|
const struct chan_opts *opts, char **error_out);
|
||
|
|
extern void close_lines(struct line *lines, int nlines);
|
||
|
|
|
||
|
|
extern int line_config(struct line *lines, unsigned int sizeof_lines,
|
||
|
|
char *str, const struct chan_opts *opts,
|
||
|
|
char **error_out);
|
||
|
|
extern int line_id(char **str, int *start_out, int *end_out);
|
||
|
|
extern int line_remove(struct line *lines, unsigned int sizeof_lines, int n,
|
||
|
|
char **error_out);
|
||
|
|
extern int line_get_config(char *dev, struct line *lines,
|
||
|
|
unsigned int sizeof_lines, char *str,
|
||
|
|
int size, char **error_out);
|
||
|
|
|
||
|
|
#endif
|