| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com) |
| */ |
| |
| #ifndef __CHAN_KERN_H__ |
| #define __CHAN_KERN_H__ |
| |
| #include <linux/tty.h> |
| #include <linux/list.h> |
| #include <linux/console.h> |
| #include "chan_user.h" |
| #include "line.h" |
| |
| struct chan { |
| struct list_head list; |
| struct list_head free_list; |
| struct line *line; |
| char *dev; |
| unsigned int primary:1; |
| unsigned int input:1; |
| unsigned int output:1; |
| unsigned int opened:1; |
| unsigned int enabled:1; |
| int fd_in; |
| int fd_out; /* only different to fd_in if blocking output is needed */ |
| const struct chan_ops *ops; |
| void *data; |
| }; |
| |
| extern void chan_interrupt(struct line *line, int irq); |
| extern int parse_chan_pair(char *str, struct line *line, int device, |
| const struct chan_opts *opts, char **error_out); |
| extern int write_chan(struct chan *chan, const u8 *buf, size_t len, |
| int write_irq); |
| extern int console_write_chan(struct chan *chan, const char *buf, |
| int len); |
| extern int console_open_chan(struct line *line, struct console *co); |
| extern void deactivate_chan(struct chan *chan, int irq); |
| extern void chan_enable_winch(struct chan *chan, struct tty_port *port); |
| extern int enable_chan(struct line *line); |
| extern void close_chan(struct line *line); |
| extern int chan_window_size(struct line *line, |
| unsigned short *rows_out, |
| unsigned short *cols_out); |
| extern int chan_config_string(struct line *line, char *str, int size, |
| char **error_out); |
| |
| #endif |
