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 11struct chan_opts { 12 void (*const announce)(char *dev_name, int dev); 13 char *xterm_title; 14 const int raw; 15 const unsigned long tramp_stack; 16 const int in_kernel; 17}; 18 19enum chan_init_pri { INIT_STATIC, INIT_ALL, INIT_ONE }; 20 21struct chan_ops { 22 char *type; 23 void *(*init)(char *, int, const struct chan_opts *); 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 *); 28 int (*console_write)(int, const char *, int); 29 int (*window_size)(int, void *, unsigned short *, unsigned short *); 30 void (*free)(void *); 31 int winch; 32}; 33 34extern const struct chan_ops fd_ops, null_ops, port_ops, pts_ops, pty_ops, 35 tty_ops, xterm_ops; 36 37extern void generic_close(int fd, void *unused); 38extern int generic_read(int fd, char *c_out, void *unused); 39extern int generic_write(int fd, const char *buf, int n, void *unused); 40extern int generic_console_write(int fd, const char *buf, int n); 41extern int generic_window_size(int fd, void *unused, unsigned short *rows_out, 42 unsigned short *cols_out); 43extern void generic_free(void *data); 44 45struct tty_struct; 46extern void register_winch(int fd, struct tty_struct *tty); 47extern 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