linux-stable/arch/um/drivers/chan_user.h
Jiri Slaby (SUSE) b49d18493a tty: um: convert to u8/__u8 and size_t
Switch character types to u8 and sizes to size_t. To conform to
characters/sizes in the rest of the tty layer.

Note we use __u8 in the userspace files.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: linux-um@lists.infradead.org
Link: https://lore.kernel.org/r/20231206073712.17776-27-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-08 12:02:38 +01:00

55 lines
1.6 KiB
C

/* 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>
#include <linux/types.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, __u8 *, void *);
int (*write)(int, const __u8 *, size_t, 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, __u8 *c_out, void *unused);
extern int generic_write(int fd, const __u8 *buf, size_t 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