mirror of
https://github.com/torvalds/linux
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2e124b4a39
Now, we start converting tty buffer functions to actually use tty_port. This will allow us to get rid of the need of tty in many call sites. Only tty_port will needed and hence no more tty_port_tty_get in those paths. Now, the one where most of tty_port_tty_get gets removed: tty_flip_buffer_push. IOW we also closed all the races in drivers not using tty_port_tty_get at all yet. Also we move tty_flip_buffer_push declaration from include/linux/tty.h to include/linux/tty_flip.h to all others while we are changing it anyway. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/*
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* Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com)
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* Licensed under the GPL
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*/
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#ifndef __CHAN_KERN_H__
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#define __CHAN_KERN_H__
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#include <linux/tty.h>
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#include <linux/list.h>
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#include <linux/console.h>
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#include "chan_user.h"
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#include "line.h"
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struct chan {
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struct list_head list;
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struct list_head free_list;
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struct line *line;
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char *dev;
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unsigned int primary:1;
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unsigned int input:1;
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unsigned int output:1;
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unsigned int opened:1;
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unsigned int enabled:1;
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int fd;
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const struct chan_ops *ops;
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void *data;
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};
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extern void chan_interrupt(struct line *line, int irq);
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extern int parse_chan_pair(char *str, struct line *line, int device,
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const struct chan_opts *opts, char **error_out);
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extern int write_chan(struct chan *chan, const char *buf, int len,
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int write_irq);
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extern int console_write_chan(struct chan *chan, const char *buf,
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int len);
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extern int console_open_chan(struct line *line, struct console *co);
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extern void deactivate_chan(struct chan *chan, int irq);
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extern void reactivate_chan(struct chan *chan, int irq);
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extern void chan_enable_winch(struct chan *chan, struct tty_struct *tty);
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extern int enable_chan(struct line *line);
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extern void close_chan(struct line *line);
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extern int chan_window_size(struct line *line,
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unsigned short *rows_out,
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unsigned short *cols_out);
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extern int chan_config_string(struct line *line, char *str, int size,
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char **error_out);
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#endif
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