arch/um/include/chan_kern.h

   1 /*
   2  * Copyright (C) 2000, 2001 Jeff Dike (jdike@karaya.com)
   3  * Licensed under the GPL
   4  */
   5
   6 #ifndef __CHAN_KERN_H__
   7 #define __CHAN_KERN_H__
   8
   9 #include "linux/tty.h"
  10 #include "linux/list.h"
  11 #include "chan_user.h"
  12
  13 struct chan {
  14         struct list_head list;
  15         char *dev;
  16         unsigned int primary:1;
  17         unsigned int input:1;
  18         unsigned int output:1;
  19         unsigned int opened:1;
  20         int fd;
  21         enum chan_init_pri pri;
  22         struct chan_ops *ops;
  23         void *data;
  24 };
  25
  26 extern void chan_interrupt(struct list_head *chans, struct work_struct *task,
  27                            struct tty_struct *tty, int irq, void *dev);
  28 extern int parse_chan_pair(char *str, struct list_head *chans, int pri,
  29                            int device, struct chan_opts *opts);
  30 extern int open_chan(struct list_head *chans);
  31 extern int write_chan(struct list_head *chans, const char *buf, int len,
  32                              int write_irq);
  33 extern int console_write_chan(struct list_head *chans, const char *buf,
  34                               int len);
  35 extern void close_chan(struct list_head *chans);
  36 extern void chan_enable_winch(struct list_head *chans, void *line);
  37 extern void enable_chan(struct list_head *chans, void *data);
  38 extern int chan_window_size(struct list_head *chans,
  39                              unsigned short *rows_out,
  40                              unsigned short *cols_out);
  41 extern int chan_out_fd(struct list_head *chans);
  42 extern int chan_config_string(struct list_head *chans, char *str, int size,
  43                               char **error_out);
  44
  45 #endif
  46
  47 /*
  48  * Overrides for Emacs so that we follow Linus's tabbing style.
  49  * Emacs will notice this stuff at the end of the file and automatically
  50  * adjust the settings for this buffer only.  This must remain at the end
  51  * of the file.
  52  * ---------------------------------------------------------------------------
  53  * Local variables:
  54  * c-file-style: "linux"
  55  * End:
  56  */