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1da177e4 LT |
1 | /* |
2 | * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com) | |
3 | * Licensed under the GPL | |
4 | */ | |
5 | ||
6 | #ifndef __CHAN_USER_H__ | |
7 | #define __CHAN_USER_H__ | |
8 | ||
9 | #include "init.h" | |
10 | ||
11 | struct chan_opts { | |
12 | void (*announce)(char *dev_name, int dev); | |
13 | char *xterm_title; | |
14 | int raw; | |
15 | unsigned long tramp_stack; | |
16 | int in_kernel; | |
17 | }; | |
18 | ||
19 | enum chan_init_pri { INIT_STATIC, INIT_ALL, INIT_ONE }; | |
20 | ||
21 | struct chan_ops { | |
22 | char *type; | |
5e7672ec | 23 | void *(*init)(char *, int, const struct chan_opts *); |
1da177e4 LT |
24 | int (*open)(int, int, int, void *, char **); |
25 | void (*close)(int, void *); | |
26 | int (*read)(int, char *, void *); | |
27 | int (*write)(int, const char *, int, void *); | |
55c033c1 | 28 | int (*console_write)(int, const char *, int); |
1da177e4 LT |
29 | int (*window_size)(int, void *, unsigned short *, unsigned short *); |
30 | void (*free)(void *); | |
31 | int winch; | |
32 | }; | |
33 | ||
5e7672ec JD |
34 | extern const struct chan_ops fd_ops, null_ops, port_ops, pts_ops, pty_ops, |
35 | tty_ops, xterm_ops; | |
1da177e4 LT |
36 | |
37 | extern void generic_close(int fd, void *unused); | |
38 | extern int generic_read(int fd, char *c_out, void *unused); | |
39 | extern int generic_write(int fd, const char *buf, int n, void *unused); | |
55c033c1 | 40 | extern int generic_console_write(int fd, const char *buf, int n); |
1da177e4 LT |
41 | extern int generic_window_size(int fd, void *unused, unsigned short *rows_out, |
42 | unsigned short *cols_out); | |
43 | extern void generic_free(void *data); | |
44 | ||
45 | struct tty_struct; | |
46 | extern void register_winch(int fd, struct tty_struct *tty); | |
47 | extern void register_winch_irq(int fd, int tty_fd, int pid, struct tty_struct *tty); | |
48 | ||
49 | #define __channel_help(fn, prefix) \ | |
50 | __uml_help(fn, prefix "[0-9]*=<channel description>\n" \ | |
51 | " Attach a console or serial line to a host channel. See\n" \ | |
52 | " http://user-mode-linux.sourceforge.net/input.html for a complete\n" \ | |
53 | " description of this switch.\n\n" \ | |
54 | ); | |
55 | ||
56 | #endif | |
57 | ||
58 | /* | |
59 | * Overrides for Emacs so that we follow Linus's tabbing style. | |
60 | * Emacs will notice this stuff at the end of the file and automatically | |
61 | * adjust the settings for this buffer only. This must remain at the end | |
62 | * of the file. | |
63 | * --------------------------------------------------------------------------- | |
64 | * Local variables: | |
65 | * c-file-style: "linux" | |
66 | * End: | |
67 | */ |