1 #ifndef _LINUX_TTY_FLIP_H 2 #define _LINUX_TTY_FLIP_H 3 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 10 #ifdef INCLUDE_INLINE_FUNCS 11 #define _INLINE_ extern 12 #else 13 #define _INLINE_ static __inline__ 14 #endif 15 16 _INLINE_ int tty_insert_flip_char(struct tty_struct *tty, 17 unsigned char ch, char flag) 18 { 19 struct tty_buffer *tb = tty->buf.tail; 20 if (tb && tb->active && tb->used < tb->size) { 21 tb->flag_buf_ptr[tb->used] = flag; 22 tb->char_buf_ptr[tb->used++] = ch; 23 return 1; 24 } 25 return tty_insert_flip_string_flags(tty, &ch, &flag, 1); 26 } 27 28 _INLINE_ void tty_schedule_flip(struct tty_struct *tty) 29 { 30 unsigned long flags; 31 spin_lock_irqsave(&tty->buf.lock, flags); 32 if (tty->buf.tail != NULL) { 33 tty->buf.tail->active = 0; 34 tty->buf.tail->commit = tty->buf.tail->used; 35 } 36 spin_unlock_irqrestore(&tty->buf.lock, flags); 37 schedule_delayed_work(&tty->buf.work, 1); 38 } 39 40 #undef _INLINE_ 41 42 43 #endif /* _LINUX_TTY_FLIP_H */ 44 45 46 47 48 49 50 51