[mirror_ubuntu-bionic-kernel.git] / include / linux / serialP.h

/*
 * Private header file for the (dumb) serial driver
 *
 * Copyright (C) 1997 by Theodore Ts'o.
 * 
 * Redistribution of this file is permitted under the terms of the GNU 
 * Public License (GPL)
 */

#ifndef _LINUX_SERIALP_H
#define _LINUX_SERIALP_H

/*
 * This is our internal structure for each serial port's state.
 * 
 * Many fields are paralleled by the structure used by the serial_struct
 * structure.
 *
 * For definitions of the flags field, see tty.h
 */

#include <linux/termios.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#include <linux/circ_buf.h>
#include <linux/wait.h>

struct serial_state {
	int	baud_base;
	unsigned long	port;
	int	irq;
	int	flags;
	int	type;
	int	line;
	int	xmit_fifo_size;
	int	custom_divisor;
	int	count;
	unsigned short	close_delay;
	unsigned short	closing_wait; /* time to wait before closing */
	struct async_icount	icount;	
	struct async_struct *info;
};

struct async_struct {
	struct serial_state	*state;
	struct tty_struct 	*tty;
	int			read_status_mask;
	int			ignore_status_mask;
	int			timeout;
	int			quot;
	int			x_char;	/* xon/xoff character */
	int			IER; 	/* Interrupt Enable Register */
	int			MCR; 	/* Modem control register */
	int			blocked_open; /* # of blocked opens */
 	struct circ_buf		xmit;
	wait_queue_head_t	open_wait;
	wait_queue_head_t	close_wait;
	wait_queue_head_t	delta_msr_wait;
	struct async_struct	*next_port; /* For the linked list */
	struct async_struct	*prev_port;
};

#endif /* _LINUX_SERIAL_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Private header file for the (dumb) serial driver
	3	*
	4	* Copyright (C) 1997 by Theodore Ts'o.
	5	*
	6	* Redistribution of this file is permitted under the terms of the GNU
	7	* Public License (GPL)
	8	*/
	9
	10	#ifndef _LINUX_SERIALP_H
	11	#define _LINUX_SERIALP_H
	12
	13	/*
	14	* This is our internal structure for each serial port's state.
	15	*
	16	* Many fields are paralleled by the structure used by the serial_struct
	17	* structure.
	18	*
	19	* For definitions of the flags field, see tty.h
	20	*/
	21
1da177e4 LT	22	#include <linux/termios.h>
	23	#include <linux/workqueue.h>
	24	#include <linux/interrupt.h>
	25	#include <linux/circ_buf.h>
	26	#include <linux/wait.h>
	27
	28	struct serial_state {
1da177e4 LT	29	int baud_base;
	30	unsigned long port;
	31	int irq;
	32	int flags;
1da177e4 LT	33	int type;
1da177e4 LT	34	int line;
1da177e4 LT	35	int xmit_fifo_size;
	36	int custom_divisor;
	37	int count;
1da177e4 LT	38	unsigned short close_delay;
	39	unsigned short closing_wait; /* time to wait before closing */
	40	struct async_icount icount;
1da177e4	41	struct async_struct *info;
1da177e4 LT	42	};
	43
	44	struct async_struct {
1da177e4 LT	45	struct serial_state *state;
	46	struct tty_struct *tty;
	47	int read_status_mask;
	48	int ignore_status_mask;
	49	int timeout;
	50	int quot;
	51	int x_char; /* xon/xoff character */
1da177e4 LT	52	int IER; /* Interrupt Enable Register */
1da177e4 LT	53	int MCR; /* Modem control register */
1da177e4 LT	54	int blocked_open; /* # of blocked opens */
1da177e4 LT	55	struct circ_buf xmit;
1da177e4 LT	56	wait_queue_head_t open_wait;
	57	wait_queue_head_t close_wait;
	58	wait_queue_head_t delta_msr_wait;
1da177e4 LT	59	struct async_struct next_port; / For the linked list */
	60	struct async_struct *prev_port;
	61	};
	62
1da177e4	63	#endif /* _LINUX_SERIAL_H */