51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
#ifndef _LINUX_TTY_FLIP_H
|
|
#define _LINUX_TTY_FLIP_H
|
|
|
|
extern int tty_buffer_request_room(struct tty_struct *tty, size_t size);
|
|
extern int tty_insert_flip_string(struct tty_struct *tty, unsigned char *chars, size_t size);
|
|
extern int tty_insert_flip_string_flags(struct tty_struct *tty, unsigned char *chars, char *flags, size_t size);
|
|
extern int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_t size);
|
|
extern int tty_prepare_flip_string_flags(struct tty_struct *tty, unsigned char **chars, char **flags, size_t size);
|
|
|
|
#ifdef INCLUDE_INLINE_FUNCS
|
|
#define _INLINE_ extern
|
|
#else
|
|
#define _INLINE_ static __inline__
|
|
#endif
|
|
|
|
_INLINE_ int tty_insert_flip_char(struct tty_struct *tty,
|
|
unsigned char ch, char flag)
|
|
{
|
|
struct tty_buffer *tb = tty->buf.tail;
|
|
if (tb && tb->active && tb->used < tb->size) {
|
|
tb->flag_buf_ptr[tb->used] = flag;
|
|
tb->char_buf_ptr[tb->used++] = ch;
|
|
return 1;
|
|
}
|
|
return tty_insert_flip_string_flags(tty, &ch, &flag, 1);
|
|
}
|
|
|
|
_INLINE_ void tty_schedule_flip(struct tty_struct *tty)
|
|
{
|
|
unsigned long flags;
|
|
spin_lock_irqsave(&tty->buf.lock, flags);
|
|
if (tty->buf.tail != NULL) {
|
|
tty->buf.tail->active = 0;
|
|
tty->buf.tail->commit = tty->buf.tail->used;
|
|
}
|
|
spin_unlock_irqrestore(&tty->buf.lock, flags);
|
|
schedule_delayed_work(&tty->buf.work, 1);
|
|
}
|
|
|
|
#undef _INLINE_
|
|
|
|
|
|
#endif /* _LINUX_TTY_FLIP_H */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|