Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | #ifndef _LINUX_TTY_FLIP_H |
2 | #define _LINUX_TTY_FLIP_H | |
3 | ||
33f0f88f AC |
4 | extern int tty_buffer_request_room(struct tty_struct *tty, size_t size); |
5 | extern int tty_insert_flip_string(struct tty_struct *tty, unsigned char *chars, size_t size); | |
6 | extern int tty_insert_flip_string_flags(struct tty_struct *tty, unsigned char *chars, char *flags, size_t size); | |
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 | ||
1da177e4 LT |
10 | #ifdef INCLUDE_INLINE_FUNCS |
11 | #define _INLINE_ extern | |
12 | #else | |
13 | #define _INLINE_ static __inline__ | |
14 | #endif | |
15 | ||
33f0f88f | 16 | _INLINE_ int tty_insert_flip_char(struct tty_struct *tty, |
1da177e4 LT |
17 | unsigned char ch, char flag) |
18 | { | |
33f0f88f | 19 | struct tty_buffer *tb = tty->buf.tail; |
808249ce | 20 | if (tb && tb->active && tb->used < tb->size) { |
33f0f88f AC |
21 | tb->flag_buf_ptr[tb->used] = flag; |
22 | tb->char_buf_ptr[tb->used++] = ch; | |
23 | return 1; | |
1da177e4 | 24 | } |
33f0f88f | 25 | return tty_insert_flip_string_flags(tty, &ch, &flag, 1); |
1da177e4 LT |
26 | } |
27 | ||
28 | _INLINE_ void tty_schedule_flip(struct tty_struct *tty) | |
29 | { | |
808249ce PF |
30 | unsigned long flags; |
31 | spin_lock_irqsave(&tty->buf.lock, flags); | |
8977d929 | 32 | if (tty->buf.tail != NULL) { |
808249ce | 33 | tty->buf.tail->active = 0; |
8977d929 PF |
34 | tty->buf.tail->commit = tty->buf.tail->used; |
35 | } | |
808249ce | 36 | spin_unlock_irqrestore(&tty->buf.lock, flags); |
33f0f88f | 37 | schedule_delayed_work(&tty->buf.work, 1); |
1da177e4 LT |
38 | } |
39 | ||
40 | #undef _INLINE_ | |
41 | ||
42 | ||
43 | #endif /* _LINUX_TTY_FLIP_H */ | |
44 | ||
45 | ||
46 | ||
47 | ||
48 | ||
49 | ||
50 |