Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#ifndef _LINUX_TTY_FLIP_H
2#define _LINUX_TTY_FLIP_H
3
4extern int tty_buffer_space_avail(struct tty_port *port);
5extern int tty_buffer_request_room(struct tty_port *port, size_t size);
6extern int tty_insert_flip_string_flags(struct tty_port *port,
7 const unsigned char *chars, const char *flags, size_t size);
8extern int tty_insert_flip_string_fixed_flag(struct tty_port *port,
9 const unsigned char *chars, char flag, size_t size);
10extern int tty_prepare_flip_string(struct tty_port *port,
11 unsigned char **chars, size_t size);
12extern int tty_prepare_flip_string_flags(struct tty_port *port,
13 unsigned char **chars, char **flags, size_t size);
14extern void tty_flip_buffer_push(struct tty_port *port);
15void tty_schedule_flip(struct tty_port *port);
16
17static inline int tty_insert_flip_char(struct tty_port *port,
18 unsigned char ch, char flag)
19{
20 struct tty_buffer *tb = port->buf.tail;
21 if (tb && tb->used < tb->size) {
22 *flag_buf_ptr(tb, tb->used) = flag;
23 *char_buf_ptr(tb, tb->used++) = ch;
24 return 1;
25 }
26 return tty_insert_flip_string_flags(port, &ch, &flag, 1);
27}
28
29static inline int tty_insert_flip_string(struct tty_port *port,
30 const unsigned char *chars, size_t size)
31{
32 return tty_insert_flip_string_fixed_flag(port, chars, TTY_NORMAL, size);
33}
34
35extern void tty_buffer_lock_exclusive(struct tty_port *port);
36extern void tty_buffer_unlock_exclusive(struct tty_port *port);
37
38#endif /* _LINUX_TTY_FLIP_H */