[linux-2.6-block.git] / include / linux / tty_flip.h

#ifndef _LINUX_TTY_FLIP_H
#define _LINUX_TTY_FLIP_H

extern int tty_buffer_set_limit(struct tty_port *port, int limit);
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 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;
	int change;

	change = (tb->flags & TTYB_NORMAL) && (flag != TTY_NORMAL);
	if (!change && tb->used < tb->size) {
		if (~tb->flags & TTYB_NORMAL)
			*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
1da177e4 LT	1	#ifndef _LINUX_TTY_FLIP_H
	2	#define _LINUX_TTY_FLIP_H
	3
4d18e6ef	4	extern int tty_buffer_set_limit(struct tty_port *port, int limit);
7bfe0b71	5	extern int tty_buffer_space_avail(struct tty_port *port);
227434f8	6	extern int tty_buffer_request_room(struct tty_port *port, size_t size);
2f693357 JS	7	extern int tty_insert_flip_string_flags(struct tty_port *port,
	8	const unsigned char chars, const char flags, size_t size);
	9	extern int tty_insert_flip_string_fixed_flag(struct tty_port *port,
	10	const unsigned char *chars, char flag, size_t size);
	11	extern int tty_prepare_flip_string(struct tty_port *port,
	12	unsigned char **chars, size_t size);
2e124b4a	13	extern void tty_flip_buffer_push(struct tty_port *port);
6732c8bb	14	void tty_schedule_flip(struct tty_port *port);
33f0f88f	15
92a19f9c	16	static inline int tty_insert_flip_char(struct tty_port *port,
e1a25090	17	unsigned char ch, char flag)
1da177e4	18	{
92a19f9c	19	struct tty_buffer *tb = port->buf.tail;
acc0f67f PH	20	int change;
	21
	22	change = (tb->flags & TTYB_NORMAL) && (flag != TTY_NORMAL);
	23	if (!change && tb->used < tb->size) {
	24	if (~tb->flags & TTYB_NORMAL)
	25	*flag_buf_ptr(tb, tb->used) = flag;
1fc359fc	26	*char_buf_ptr(tb, tb->used++) = ch;
33f0f88f	27	return 1;
1da177e4	28	}
92a19f9c	29	return tty_insert_flip_string_flags(port, &ch, &flag, 1);
1da177e4 LT	30	}
1da177e4 LT	31
05c7cd39 JS	32	static inline int tty_insert_flip_string(struct tty_port *port,
05c7cd39 JS	33	const unsigned char *chars, size_t size)
2832fc11	34	{
05c7cd39	35	return tty_insert_flip_string_fixed_flag(port, chars, TTY_NORMAL, size);
2832fc11 AC	36	}
2832fc11 AC	37
a7c8d58c PH	38	extern void tty_buffer_lock_exclusive(struct tty_port *port);
	39	extern void tty_buffer_unlock_exclusive(struct tty_port *port);
	40
1da177e4	41	#endif /* _LINUX_TTY_FLIP_H */