1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com) 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun #ifndef __CHAN_USER_H__ 7*4882a593Smuzhiyun #define __CHAN_USER_H__ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <init.h> 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun struct chan_opts { 12*4882a593Smuzhiyun void (*const announce)(char *dev_name, int dev); 13*4882a593Smuzhiyun char *xterm_title; 14*4882a593Smuzhiyun int raw; 15*4882a593Smuzhiyun }; 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun struct chan_ops { 18*4882a593Smuzhiyun char *type; 19*4882a593Smuzhiyun void *(*init)(char *, int, const struct chan_opts *); 20*4882a593Smuzhiyun int (*open)(int, int, int, void *, char **); 21*4882a593Smuzhiyun void (*close)(int, void *); 22*4882a593Smuzhiyun int (*read)(int, char *, void *); 23*4882a593Smuzhiyun int (*write)(int, const char *, int, void *); 24*4882a593Smuzhiyun int (*console_write)(int, const char *, int); 25*4882a593Smuzhiyun int (*window_size)(int, void *, unsigned short *, unsigned short *); 26*4882a593Smuzhiyun void (*free)(void *); 27*4882a593Smuzhiyun int winch; 28*4882a593Smuzhiyun }; 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun extern const struct chan_ops fd_ops, null_ops, port_ops, pts_ops, pty_ops, 31*4882a593Smuzhiyun tty_ops, xterm_ops; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun extern void generic_close(int fd, void *unused); 34*4882a593Smuzhiyun extern int generic_read(int fd, char *c_out, void *unused); 35*4882a593Smuzhiyun extern int generic_write(int fd, const char *buf, int n, void *unused); 36*4882a593Smuzhiyun extern int generic_console_write(int fd, const char *buf, int n); 37*4882a593Smuzhiyun extern int generic_window_size(int fd, void *unused, unsigned short *rows_out, 38*4882a593Smuzhiyun unsigned short *cols_out); 39*4882a593Smuzhiyun extern void generic_free(void *data); 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun struct tty_port; 42*4882a593Smuzhiyun extern void register_winch(int fd, struct tty_port *port); 43*4882a593Smuzhiyun extern void register_winch_irq(int fd, int tty_fd, int pid, 44*4882a593Smuzhiyun struct tty_port *port, unsigned long stack); 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun #define __channel_help(fn, prefix) \ 47*4882a593Smuzhiyun __uml_help(fn, prefix "[0-9]*=<channel description>\n" \ 48*4882a593Smuzhiyun " Attach a console or serial line to a host channel. See\n" \ 49*4882a593Smuzhiyun " http://user-mode-linux.sourceforge.net/old/input.html for a complete\n" \ 50*4882a593Smuzhiyun " description of this switch.\n\n" \ 51*4882a593Smuzhiyun ); 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun #endif 54