| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 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 "asm/semaphore.h" |
| 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; |
| 40 | struct semaphore sem; |
| 41 | char *buffer; |
| 42 | char *head; |
| 43 | char *tail; |
| 44 | int sigio; |
| 45 | struct work_struct task; |
| 46 | struct line_driver *driver; |
| 47 | int have_irq; |
| 48 | }; |
| 49 | |
| 50 | #define LINE_INIT(str, d) \ |
| 51 | { init_str : str, \ |
| 52 | init_pri : INIT_STATIC, \ |
| 53 | chan_list : { }, \ |
| 54 | valid : 1, \ |
| 55 | sem : { }, \ |
| 56 | buffer : NULL, \ |
| 57 | head : NULL, \ |
| 58 | tail : NULL, \ |
| 59 | sigio : 0, \ |
| 60 | driver : d, \ |
| 61 | have_irq : 0 } |
| 62 | |
| 63 | struct lines { |
| 64 | int num; |
| 65 | }; |
| 66 | |
| 67 | #define LINES_INIT(n) { num : n } |
| 68 | |
| 69 | extern void line_close(struct tty_struct *tty, struct file * filp); |
| 70 | extern int line_open(struct line *lines, struct tty_struct *tty, |
| 71 | struct chan_opts *opts); |
| 72 | extern int line_setup(struct line *lines, int num, char *init, |
| 73 | int all_allowed); |
| 74 | extern int line_write(struct tty_struct *tty, const unsigned char *buf, int len); |
| 75 | extern void line_put_char(struct tty_struct *tty, unsigned char ch); |
| 76 | extern void line_set_termios(struct tty_struct *tty, struct termios * old); |
| 77 | extern int line_chars_in_buffer(struct tty_struct *tty); |
| 78 | extern int line_write_room(struct tty_struct *tty); |
| 79 | extern int line_ioctl(struct tty_struct *tty, struct file * file, |
| 80 | unsigned int cmd, unsigned long arg); |
| 81 | extern char *add_xterm_umid(char *base); |
| 82 | extern int line_setup_irq(int fd, int input, int output, struct tty_struct *tty); |
| 83 | extern void line_close_chan(struct line *line); |
| 84 | extern void line_disable(struct tty_struct *tty, int current_irq); |
| 85 | extern struct tty_driver * line_register_devfs(struct lines *set, |
| 86 | struct line_driver *line_driver, |
| 87 | struct tty_operations *driver, |
| 88 | struct line *lines, |
| 89 | int nlines); |
| 90 | extern void lines_init(struct line *lines, int nlines); |
| 91 | extern void close_lines(struct line *lines, int nlines); |
| 92 | extern int line_config(struct line *lines, int num, char *str); |
| 93 | extern int line_remove(struct line *lines, int num, char *str); |
| 94 | extern int line_get_config(char *dev, struct line *lines, int num, char *str, |
| 95 | int size, char **error_out); |
| 96 | |
| 97 | #endif |
| 98 | |
| 99 | /* |
| 100 | * Overrides for Emacs so that we follow Linus's tabbing style. |
| 101 | * Emacs will notice this stuff at the end of the file and automatically |
| 102 | * adjust the settings for this buffer only. This must remain at the end |
| 103 | * of the file. |
| 104 | * --------------------------------------------------------------------------- |
| 105 | * Local variables: |
| 106 | * c-file-style: "linux" |
| 107 | * End: |
| 108 | */ |