[linux-2.6-block.git] / arch / um / include / line.h

/* 
 * 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 "chan_user.h"
#include "mconsole_kern.h"

struct line_driver {
	char *name;
	char *device_name;
	char *devfs_name;
	short major;
	short minor_start;
	short type;
	short subtype;
	int read_irq;
	char *read_irq_name;
	int write_irq;
	char *write_irq_name;
	char *symlink_from;
	char *symlink_to;
	struct mc_device mc;
};

struct line {
	char *init_str;
	int init_pri;
	struct list_head chan_list;
	int valid;
	int count;
	/*This lock is actually, mostly, local to*/
	spinlock_t lock;

	/* 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 work_struct task;
	struct line_driver *driver;
	int have_irq;
};

#define LINE_INIT(str, d) \
	{ init_str :	str, \
	  init_pri :	INIT_STATIC, \
	  chan_list : 	{ }, \
	  valid :	1, \
	  buffer :	NULL, \
	  head :	NULL, \
	  tail :	NULL, \
	  sigio :	0, \
	  driver :	d, \
	  have_irq :	0 }

struct lines {
	int num;
};

#define LINES_INIT(n) {  num :		n }

extern void line_close(struct tty_struct *tty, struct file * filp);
extern int line_open(struct line *lines, struct tty_struct *tty,
		     struct chan_opts *opts);
extern int line_setup(struct line *lines, unsigned int sizeof_lines, char *init,
		      int all_allowed);
extern int line_write(struct tty_struct *tty, const unsigned char *buf,
		      int len);
extern void line_put_char(struct tty_struct *tty, unsigned char ch);
extern void line_set_termios(struct tty_struct *tty, struct termios * 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 int line_ioctl(struct tty_struct *tty, struct file * file,
		      unsigned int cmd, unsigned long arg);

extern char *add_xterm_umid(char *base);
extern int line_setup_irq(int fd, int input, int output,
			  struct tty_struct *tty);
extern void line_close_chan(struct line *line);
extern void line_disable(struct tty_struct *tty, int current_irq);
extern struct tty_driver * line_register_devfs(struct lines *set,
				struct line_driver *line_driver,
				struct tty_operations *driver,
				struct line *lines,
				int nlines);
extern void lines_init(struct line *lines, int nlines);
extern void close_lines(struct line *lines, int nlines);

extern int line_config(struct line *lines, unsigned int sizeof_lines,
		       char *str);
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);
extern int line_get_config(char *dev, struct line *lines,
			   unsigned int sizeof_lines, char *str,
			   int size, char **error_out);

#endif
Commit	Line	Data
1da177e4 LT	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"
b97b77cc	13	#include "linux/spinlock.h"
1da177e4 LT	14	#include "chan_user.h"
	15	#include "mconsole_kern.h"
	16
	17	struct line_driver {
	18	char *name;
	19	char *device_name;
	20	char *devfs_name;
	21	short major;
	22	short minor_start;
	23	short type;
	24	short subtype;
	25	int read_irq;
	26	char *read_irq_name;
	27	int write_irq;
	28	char *write_irq_name;
	29	char *symlink_from;
	30	char *symlink_to;
	31	struct mc_device mc;
	32	};
	33
	34	struct line {
	35	char *init_str;
	36	int init_pri;
	37	struct list_head chan_list;
	38	int valid;
	39	int count;
b97b77cc PBG	40	/This lock is actually, mostly, local to/
	41	spinlock_t lock;
	42
	43	/* Yes, this is a real circular buffer.
	44	* XXX: And this should become a struct kfifo!
	45	*
	46	* buffer points to a buffer allocated on demand, of length
	47	* LINE_BUFSIZE, head to the start of the ring, tail to the end.*/
1da177e4 LT	48	char *buffer;
	49	char *head;
	50	char *tail;
b97b77cc	51
1da177e4 LT	52	int sigio;
	53	struct work_struct task;
	54	struct line_driver *driver;
	55	int have_irq;
	56	};
	57
	58	#define LINE_INIT(str, d) \
	59	{ init_str : str, \
	60	init_pri : INIT_STATIC, \
	61	chan_list : { }, \
	62	valid : 1, \
1da177e4 LT	63	buffer : NULL, \
	64	head : NULL, \
	65	tail : NULL, \
	66	sigio : 0, \
d50084a2 JD	67	driver : d, \
d50084a2 JD	68	have_irq : 0 }
1da177e4 LT	69
	70	struct lines {
	71	int num;
	72	};
	73
	74	#define LINES_INIT(n) { num : n }
	75
	76	extern void line_close(struct tty_struct tty, struct file filp);
d50084a2	77	extern int line_open(struct line lines, struct tty_struct tty,
1da177e4	78	struct chan_opts *opts);
b97b77cc	79	extern int line_setup(struct line lines, unsigned int sizeof_lines, char init,
1da177e4	80	int all_allowed);
d50084a2 JD	81	extern int line_write(struct tty_struct tty, const unsigned char buf,
d50084a2 JD	82	int len);
1da177e4 LT	83	extern void line_put_char(struct tty_struct *tty, unsigned char ch);
	84	extern void line_set_termios(struct tty_struct tty, struct termios old);
	85	extern int line_chars_in_buffer(struct tty_struct *tty);
b97b77cc PBG	86	extern void line_flush_buffer(struct tty_struct *tty);
b97b77cc PBG	87	extern void line_flush_chars(struct tty_struct *tty);
1da177e4 LT	88	extern int line_write_room(struct tty_struct *tty);
	89	extern int line_ioctl(struct tty_struct tty, struct file file,
	90	unsigned int cmd, unsigned long arg);
b97b77cc	91
1da177e4	92	extern char add_xterm_umid(char base);
d50084a2 JD	93	extern int line_setup_irq(int fd, int input, int output,
d50084a2 JD	94	struct tty_struct *tty);
1da177e4 LT	95	extern void line_close_chan(struct line *line);
1da177e4 LT	96	extern void line_disable(struct tty_struct *tty, int current_irq);
d50084a2 JD	97	extern struct tty_driver * line_register_devfs(struct lines *set,
d50084a2 JD	98	struct line_driver *line_driver,
1da177e4 LT	99	struct tty_operations *driver,
	100	struct line *lines,
	101	int nlines);
	102	extern void lines_init(struct line *lines, int nlines);
	103	extern void close_lines(struct line *lines, int nlines);
b97b77cc	104
d50084a2 JD	105	extern int line_config(struct line *lines, unsigned int sizeof_lines,
d50084a2 JD	106	char *str);
29d56cfe JD	107	extern int line_id(char *str, int start_out, int *end_out);
29d56cfe JD	108	extern int line_remove(struct line *lines, unsigned int sizeof_lines, int n);
d50084a2 JD	109	extern int line_get_config(char dev, struct line lines,
d50084a2 JD	110	unsigned int sizeof_lines, char *str,
1da177e4 LT	111	int size, char **error_out);
	112
	113	#endif