1/* SPDX-License-Identifier: GPL-2.0 */
 2/* 
 3 * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com)
 
 4 */
 5
 6#ifndef __LINE_H__
 7#define __LINE_H__
 8
 9#include <linux/list.h>
10#include <linux/workqueue.h>
11#include <linux/tty.h>
12#include <linux/interrupt.h>
13#include <linux/spinlock.h>
14#include <linux/mutex.h>
15#include "chan_user.h"
16#include "mconsole_kern.h"
17
18/* There's only two modifiable fields in this - .mc.list and .driver */
19struct line_driver {
20	const char *name;
21	const char *device_name;
22	const short major;
23	const short minor_start;
24	const short type;
25	const short subtype;
 
26	const char *read_irq_name;
 
27	const char *write_irq_name;
28	struct mc_device mc;
29	struct tty_driver *driver;
30};
31
32struct line {
33	struct tty_port port;
34	int valid;
35
36	int read_irq, write_irq;
37
38	char *init_str;
39	struct list_head chan_list;
40	struct chan *chan_in, *chan_out;
41
42	/*This lock is actually, mostly, local to*/
43	spinlock_t lock;
44	int throttled;
45	/* Yes, this is a real circular buffer.
46	 * XXX: And this should become a struct kfifo!
47	 *
48	 * buffer points to a buffer allocated on demand, of length
49	 * LINE_BUFSIZE, head to the start of the ring, tail to the end.*/
50	char *buffer;
51	char *head;
52	char *tail;
53
54	int sigio;
55	struct delayed_work task;
56	const struct line_driver *driver;
57};
58
59extern void line_close(struct tty_struct *tty, struct file * filp);
60extern int line_open(struct tty_struct *tty, struct file *filp);
61extern int line_install(struct tty_driver *driver, struct tty_struct *tty,
62	struct line *line);
63extern void line_cleanup(struct tty_struct *tty);
64extern void line_hangup(struct tty_struct *tty);
65extern int line_setup(char **conf, unsigned nlines, char **def,
66		      char *init, char *name);
67extern int line_write(struct tty_struct *tty, const unsigned char *buf,
68		      int len);
69extern unsigned int line_chars_in_buffer(struct tty_struct *tty);
 
 
70extern void line_flush_buffer(struct tty_struct *tty);
71extern void line_flush_chars(struct tty_struct *tty);
72extern unsigned int line_write_room(struct tty_struct *tty);
73extern void line_throttle(struct tty_struct *tty);
74extern void line_unthrottle(struct tty_struct *tty);
75
76extern char *add_xterm_umid(char *base);
77extern int line_setup_irq(int fd, int input, int output, struct line *line,
78			  void *data);
79extern void line_close_chan(struct line *line);
80extern int register_lines(struct line_driver *line_driver,
81			  const struct tty_operations *driver,
82			  struct line *lines, int nlines);
83extern int setup_one_line(struct line *lines, int n, char *init,
84			  const struct chan_opts *opts, char **error_out);
85extern void close_lines(struct line *lines, int nlines);
86
87extern int line_config(struct line *lines, unsigned int sizeof_lines,
88		       char *str, const struct chan_opts *opts,
89		       char **error_out);
90extern int line_id(char **str, int *start_out, int *end_out);
91extern int line_remove(struct line *lines, unsigned int sizeof_lines, int n,
92		       char **error_out);
93extern int line_get_config(char *dev, struct line *lines,
94			   unsigned int sizeof_lines, char *str,
95			   int size, char **error_out);
96
97#endif

 
 1/* 
 2 * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com)
 3 * Licensed under the GPL
 4 */
 5
 6#ifndef __LINE_H__
 7#define __LINE_H__
 8
 9#include <linux/list.h>
10#include <linux/workqueue.h>
11#include <linux/tty.h>
12#include <linux/interrupt.h>
13#include <linux/spinlock.h>
14#include <linux/mutex.h>
15#include "chan_user.h"
16#include "mconsole_kern.h"
17
18/* There's only two modifiable fields in this - .mc.list and .driver */
19struct line_driver {
20	const char *name;
21	const char *device_name;
22	const short major;
23	const short minor_start;
24	const short type;
25	const short subtype;
26	const int read_irq;
27	const char *read_irq_name;
28	const int write_irq;
29	const char *write_irq_name;
30	struct mc_device mc;
31	struct tty_driver *driver;
32};
33
34struct line {
35	struct tty_port port;
36	int valid;
37
 
 
38	char *init_str;
39	struct list_head chan_list;
40	struct chan *chan_in, *chan_out;
41
42	/*This lock is actually, mostly, local to*/
43	spinlock_t lock;
44	int throttled;
45	/* Yes, this is a real circular buffer.
46	 * XXX: And this should become a struct kfifo!
47	 *
48	 * buffer points to a buffer allocated on demand, of length
49	 * LINE_BUFSIZE, head to the start of the ring, tail to the end.*/
50	char *buffer;
51	char *head;
52	char *tail;
53
54	int sigio;
55	struct delayed_work task;
56	const struct line_driver *driver;
57};
58
59extern void line_close(struct tty_struct *tty, struct file * filp);
60extern int line_open(struct tty_struct *tty, struct file *filp);
61extern int line_install(struct tty_driver *driver, struct tty_struct *tty,
62	struct line *line);
63extern void line_cleanup(struct tty_struct *tty);
64extern void line_hangup(struct tty_struct *tty);
65extern int line_setup(char **conf, unsigned nlines, char **def,
66		      char *init, char *name);
67extern int line_write(struct tty_struct *tty, const unsigned char *buf,
68		      int len);
69extern int line_put_char(struct tty_struct *tty, unsigned char ch);
70extern void line_set_termios(struct tty_struct *tty, struct ktermios * old);
71extern int line_chars_in_buffer(struct tty_struct *tty);
72extern void line_flush_buffer(struct tty_struct *tty);
73extern void line_flush_chars(struct tty_struct *tty);
74extern int line_write_room(struct tty_struct *tty);
75extern void line_throttle(struct tty_struct *tty);
76extern void line_unthrottle(struct tty_struct *tty);
77
78extern char *add_xterm_umid(char *base);
79extern int line_setup_irq(int fd, int input, int output, struct line *line,
80			  void *data);
81extern void line_close_chan(struct line *line);
82extern int register_lines(struct line_driver *line_driver,
83			  const struct tty_operations *driver,
84			  struct line *lines, int nlines);
85extern int setup_one_line(struct line *lines, int n, char *init,
86			  const struct chan_opts *opts, char **error_out);
87extern void close_lines(struct line *lines, int nlines);
88
89extern int line_config(struct line *lines, unsigned int sizeof_lines,
90		       char *str, const struct chan_opts *opts,
91		       char **error_out);
92extern int line_id(char **str, int *start_out, int *end_out);
93extern int line_remove(struct line *lines, unsigned int sizeof_lines, int n,
94		       char **error_out);
95extern int line_get_config(char *dev, struct line *lines,
96			   unsigned int sizeof_lines, char *str,
97			   int size, char **error_out);
98
99#endif