1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com) 4 */ 5 6#ifndef __CHAN_USER_H__ 7#define __CHAN_USER_H__ 8 9#include <init.h> 10#include <linux/types.h> 11 12struct chan_opts { 13 void (*const announce)(char *dev_name, int dev); 14 char *xterm_title; 15 int raw; 16}; 17 18struct chan_ops { 19 char *type; 20 void *(*init)(char *, int, const struct chan_opts *); 21 int (*open)(int, int, int, void *, char **); 22 void (*close)(int, void *); 23 int (*read)(int, __u8 *, void *); 24 int (*write)(int, const __u8 *, size_t, void *); 25 int (*console_write)(int, const char *, int); 26 int (*window_size)(int, void *, unsigned short *, unsigned short *); 27 void (*free)(void *); 28 int winch; 29}; 30 31extern const struct chan_ops fd_ops, null_ops, port_ops, pts_ops, pty_ops, 32 tty_ops, xterm_ops; 33 34extern void generic_close(int fd, void *unused); 35extern int generic_read(int fd, __u8 *c_out, void *unused); 36extern int generic_write(int fd, const __u8 *buf, size_t n, void *unused); 37extern int generic_console_write(int fd, const char *buf, int n); 38extern int generic_window_size(int fd, void *unused, unsigned short *rows_out, 39 unsigned short *cols_out); 40extern void generic_free(void *data); 41 42struct tty_port; 43extern void register_winch(int fd, struct tty_port *port); 44extern void register_winch_irq(int fd, int tty_fd, int pid, 45 struct tty_port *port, unsigned long stack); 46 47#define __channel_help(fn, prefix) \ 48__uml_help(fn, prefix "[0-9]*=<channel description>\n" \ 49" Attach a console or serial line to a host channel. See\n" \ 50" http://user-mode-linux.sourceforge.net/old/input.html for a complete\n" \ 51" description of this switch.\n\n" \ 52); 53 54#endif 55