diff options
Diffstat (limited to 'arch/um/drivers/chan.h')
| -rw-r--r-- | arch/um/drivers/chan.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/um/drivers/chan.h b/arch/um/drivers/chan.h new file mode 100644 index 000000000..3fec3b840 --- /dev/null +++ b/arch/um/drivers/chan.h @@ -0,0 +1,48 @@ +/* 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; + 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 char *buf, int 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 |