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Commit | Line | Data |
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1da177e4 LT |
1 | #ifndef _LINUX_TTY_FLIP_H |
2 | #define _LINUX_TTY_FLIP_H | |
3 | ||
33f0f88f | 4 | extern int tty_buffer_request_room(struct tty_struct *tty, size_t size); |
1aef821a TK |
5 | extern int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, size_t size); |
6 | extern int tty_insert_flip_string_flags(struct tty_struct *tty, const unsigned char *chars, const char *flags, size_t size); | |
33f0f88f AC |
7 | extern int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_t size); |
8 | extern int tty_prepare_flip_string_flags(struct tty_struct *tty, unsigned char **chars, char **flags, size_t size); | |
9 | ||
41c28ff1 AB |
10 | static inline int tty_insert_flip_char(struct tty_struct *tty, |
11 | unsigned char ch, char flag) | |
1da177e4 | 12 | { |
33f0f88f | 13 | struct tty_buffer *tb = tty->buf.tail; |
808249ce | 14 | if (tb && tb->active && tb->used < tb->size) { |
33f0f88f AC |
15 | tb->flag_buf_ptr[tb->used] = flag; |
16 | tb->char_buf_ptr[tb->used++] = ch; | |
17 | return 1; | |
1da177e4 | 18 | } |
33f0f88f | 19 | return tty_insert_flip_string_flags(tty, &ch, &flag, 1); |
1da177e4 LT |
20 | } |
21 | ||
41c28ff1 | 22 | static inline void tty_schedule_flip(struct tty_struct *tty) |
1da177e4 | 23 | { |
808249ce PF |
24 | unsigned long flags; |
25 | spin_lock_irqsave(&tty->buf.lock, flags); | |
8977d929 | 26 | if (tty->buf.tail != NULL) { |
808249ce | 27 | tty->buf.tail->active = 0; |
8977d929 PF |
28 | tty->buf.tail->commit = tty->buf.tail->used; |
29 | } | |
808249ce | 30 | spin_unlock_irqrestore(&tty->buf.lock, flags); |
33f0f88f | 31 | schedule_delayed_work(&tty->buf.work, 1); |
1da177e4 LT |
32 | } |
33 | ||
34 | #undef _INLINE_ | |
35 | ||
36 | ||
37 | #endif /* _LINUX_TTY_FLIP_H */ | |
38 | ||
39 | ||
40 | ||
41 | ||
42 | ||
43 | ||
44 |