diff options
Diffstat (limited to 'arch/um/drivers/chan_user.h')
| -rw-r--r-- | arch/um/drivers/chan_user.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/um/drivers/chan_user.h b/arch/um/drivers/chan_user.h new file mode 100644 index 0000000000..4e51b85e2a --- /dev/null +++ b/arch/um/drivers/chan_user.h @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com) + */ + +#ifndef __CHAN_USER_H__ +#define __CHAN_USER_H__ + +#include <init.h> + +struct chan_opts { + void (*const announce)(char *dev_name, int dev); + char *xterm_title; + int raw; +}; + +struct chan_ops { + char *type; + void *(*init)(char *, int, const struct chan_opts *); + int (*open)(int, int, int, void *, char **); + void (*close)(int, void *); + int (*read)(int, char *, void *); + int (*write)(int, const char *, int, void *); + int (*console_write)(int, const char *, int); + int (*window_size)(int, void *, unsigned short *, unsigned short *); + void (*free)(void *); + int winch; +}; + +extern const struct chan_ops fd_ops, null_ops, port_ops, pts_ops, pty_ops, + tty_ops, xterm_ops; + +extern void generic_close(int fd, void *unused); +extern int generic_read(int fd, char *c_out, void *unused); +extern int generic_write(int fd, const char *buf, int n, void *unused); +extern int generic_console_write(int fd, const char *buf, int n); +extern int generic_window_size(int fd, void *unused, unsigned short *rows_out, + unsigned short *cols_out); +extern void generic_free(void *data); + +struct tty_port; +extern void register_winch(int fd, struct tty_port *port); +extern void register_winch_irq(int fd, int tty_fd, int pid, + struct tty_port *port, unsigned long stack); + +#define __channel_help(fn, prefix) \ +__uml_help(fn, prefix "[0-9]*=<channel description>\n" \ +" Attach a console or serial line to a host channel. See\n" \ +" http://user-mode-linux.sourceforge.net/old/input.html for a complete\n" \ +" description of this switch.\n\n" \ +); + +#endif |