[deliverable/linux.git] / include / linux / tty_flip.h

#ifndef _LINUX_TTY_FLIP_H
#define _LINUX_TTY_FLIP_H

extern int tty_buffer_space_avail(struct tty_port *port);
extern int tty_buffer_request_room(struct tty_port *port, size_t size);
extern int tty_insert_flip_string_flags(struct tty_port *port,
		const unsigned char *chars, const char *flags, size_t size);
extern int tty_insert_flip_string_fixed_flag(struct tty_port *port,
		const unsigned char *chars, char flag, size_t size);
extern int tty_prepare_flip_string(struct tty_port *port,
		unsigned char **chars, size_t size);
extern int tty_prepare_flip_string_flags(struct tty_port *port,
		unsigned char **chars, char **flags, size_t size);
extern void tty_flip_buffer_push(struct tty_port *port);
void tty_schedule_flip(struct tty_port *port);

static inline int tty_insert_flip_char(struct tty_port *port,
					unsigned char ch, char flag)
{
	struct tty_buffer *tb = port->buf.tail;
	if (tb && tb->used < tb->size) {
		*flag_buf_ptr(tb, tb->used) = flag;
		*char_buf_ptr(tb, tb->used++) = ch;
		return 1;
	}
	return tty_insert_flip_string_flags(port, &ch, &flag, 1);
}

static inline int tty_insert_flip_string(struct tty_port *port,
		const unsigned char *chars, size_t size)
{
	return tty_insert_flip_string_fixed_flag(port, chars, TTY_NORMAL, size);
}

extern void tty_buffer_lock_exclusive(struct tty_port *port);
extern void tty_buffer_unlock_exclusive(struct tty_port *port);

#endif /* _LINUX_TTY_FLIP_H */
Commit	Line	Data
	1	#ifndef _LINUX_TTY_FLIP_H
	2	#define _LINUX_TTY_FLIP_H
	3
	4	extern int tty_buffer_space_avail(struct tty_port *port);
	5	extern int tty_buffer_request_room(struct tty_port *port, size_t size);
	6	extern int tty_insert_flip_string_flags(struct tty_port *port,
	7	const unsigned char chars, const char flags, size_t size);
	8	extern int tty_insert_flip_string_fixed_flag(struct tty_port *port,
	9	const unsigned char *chars, char flag, size_t size);
	10	extern int tty_prepare_flip_string(struct tty_port *port,
	11	unsigned char **chars, size_t size);
	12	extern int tty_prepare_flip_string_flags(struct tty_port *port,
	13	unsigned char chars, char flags, size_t size);
	14	extern void tty_flip_buffer_push(struct tty_port *port);
	15	void tty_schedule_flip(struct tty_port *port);
	16
	17	static 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
	29	static 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
	35	extern void tty_buffer_lock_exclusive(struct tty_port *port);
	36	extern void tty_buffer_unlock_exclusive(struct tty_port *port);
	37
	38	#endif /* _LINUX_TTY_FLIP_H */