--- old/usr/src/uts/sun/sys/ttymux.h	Fri Aug  9 07:21:05 2019
+++ /dev/null	Fri Aug  9 00:52:51 2019
@@ -1,192 +0,0 @@
-/*
- * CDDL HEADER START
- *
- * The contents of this file are subject to the terms of the
- * Common Development and Distribution License, Version 1.0 only
- * (the "License").  You may not use this file except in compliance
- * with the License.
- *
- * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- * or http://www.opensolaris.org/os/licensing.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- *
- * When distributing Covered Code, include this CDDL HEADER in each
- * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- * If applicable, add the following below this CDDL HEADER, with the
- * fields enclosed by brackets "[]" replaced with your own identifying
- * information: Portions Copyright [yyyy] [name of copyright owner]
- *
- * CDDL HEADER END
- */
-/*
- * Copyright (c) 2001 by Sun Microsystems, Inc.
- * All rights reserved.
- */
-
-#ifndef	_TTYMUX_H
-#define	_TTYMUX_H
-
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
-
-#include <sys/obpdefs.h>
-#include <sys/tty.h>
-#include <sys/ttymuxuser.h>
-
-#ifdef	__cplusplus
-extern "C" {
-#endif
-
-#define	SM_MAX_ABSLEN	24	/* maximum length for the s/w abort sequence */
-#define	SM_MIN_ABSLEN	2
-
-#define	SM_COPYIN	0x1
-#define	SM_COPYOUT	0x2
-
-typedef
-struct sm_iocdata {
-	int sm_iocid;
-	int sm_nacks;	/* number of responses expected */
-	int sm_ackcnt;	/* number of ACKs received */
-	int sm_nakcnt;	/* number of NAKs received */
-	int sm_acnt;	/* number of responses received */
-	int sm_acked;	/* has the message been acked (only one of them) */
-	int sm_policy;	/* which policy is used for acknowleding this ioctl */
-	uint_t sm_flags;
-			/* indicates when copyin/out has been sent upstream */
-	ulong_t  sm_timeval;
-} sm_iocdata_t;
-
-/*
- * Each minor (refered to as a logical device) created by the multiplexor
- * maps onto multiple real devices.
- * I/O on a logical device is duplicated across multiple real devices.
- * i.e. input from any of the real devices (identified by lqs) is funneled
- * through the queue identified in the ttycommon field of a logical unit.
- * output arriving on the queue identified in the ttycommon field of a logical
- * unit is distributed to all real devices identified by lqs.
- *
- * When a logical unit is open there is a unique queue upstream (identified
- * by ttycommon).
- * When a real unit is open there is a unique lower queue to the h/w driver
- * (identified by ttycommon).
- *
- * If the control lines on RS232 port for a physical unit are unknown and
- * a request for their status has been issued then flags contains the bits
- * TIOCM_PEND and tiocmgetid contains the id of the M_IOCTL streams	message
- * sent down the write queue to obtain the current status (placed in mbits).
- */
-typedef
-struct sm_uqi {
-	int		sm_lunit;	/* logical unit */
-	int		sm_protocol;	/* in use for this protocol */
-	uint_t		sm_flags;	/* flags */
-	uint_t		sm_mbits;	/* consolidated status of modem lines */
-	tcflag_t	sm_cmask;	/* ignore these control bits */
-	uint_t		sm_policy;	/* ioctl response policy */
-	struct sm_lqi	*sm_lqs;	/* lower queues mapped to this lunit */
-	int		sm_nlqs;
-	kmutex_t	sm_umutex[1];	/* protects uflags */
-	kcondvar_t	sm_ucv[1];	/* waiting for uflags to change */
-	bufcall_id_t	sm_ttybid;	/* ttycommon bufcall */
-	dev_t		sm_dev;		/* currently attached device */
-	int		sm_nwaiters;	/* no. of threads waiting for carrier */
-	queue_t		*sm_waitq;	/* identity of blocked queue */
-	tty_common_t	sm_ttycommon[1];
-					/* queue common data when is open */
-	sm_iocdata_t	sm_siocdata;	/* active ioctl */
-	sm_iocdata_t	sm_piocdata;	/* active private ioctl */
-} sm_uqi_t;
-
-typedef
-struct sm_lqi {
-	struct sm_lqi	*sm_nlqi;	/* chain units together into lists */
-	sm_uqi_t	*sm_uqi;	/* this lunit and uqi are associated */
-	int		sm_linkid;	/* mux id for the link */
-	uint64_t	sm_tag;		/* tag for the link */
-	uint_t		sm_flags;		/* flags */
-	uint_t		sm_uqflags;	/* written by an upper queue */
-	io_mode_t	sm_ioflag;	/* input and/or output stream */
-	int		sm_ctrla_abort_on;
-	int		sm_break_abort_on;
-	uint_t		sm_mbits;	/* status of the modem control lines */
-	tcflag_t	sm_cmask;	/* ignore these control bits */
-	mblk_t		*sm_mp;		/* mblk for next write */
-	bufcall_id_t	sm_bid;		/* bufcall id */
-	bufcall_id_t	sm_ttybid;	/* ttymodes changed bufcall */
-	kmutex_t	sm_umutex[1];	/* protects open code */
-	kcondvar_t	sm_ucv[1];
-	dev_info_t	*sm_dip;
-	dev_t		sm_dev;
-	int		sm_unit;
-	unsigned char	*sm_hadkadbchar;
-	char		*sm_nachar;
-	int		sm_piocid;
-	tty_common_t	sm_ttycommon[1];
-					/* queue common data when open */
-	char		sm_path[MAXPATHLEN];
-} sm_lqi_t;
-
-/*
- * This structure maintains the state of the console.
- */
-typedef struct console {
-	dev_t		sm_dev;		/* the minor node of a console */
-	int		sm_muxid;	/* STREAM's link identifier */
-	io_mode_t	sm_mode;	/* I/O mode */
-	boolean_t	sm_obp_con;	/* is it an OBP console */
-	ihandle_t	sm_i_ihdl;	/* ihandle of the OBP input device */
-	ihandle_t	sm_o_ihdl;	/* ihandle of the OBP output device */
-	char		*sm_path;	/* device tree device path */
-	char		*sm_alias;	/* device path alias */
-} sm_console_t;
-
-/*
- * This structure contains the information for an open device.
- * If an instance of it exists it is available as a named pointer:
- */
-#define	TTYMUXPTR "ttymuxconfig"
-
-typedef struct mux_state {
-
-	/* protects ttymux configuration */
-	kmutex_t	sm_cons_mutex;
-
-	/* Information about the standard I/O devices */
-	sm_console_t	sm_cons_stdin;
-	sm_console_t	sm_cons_stdout;
-
-	/* List of multiplexed serial consoles */
-	uint_t		sm_cons_cnt;
-	char		*sm_ialias;
-	char		*sm_oalias;
-	sm_console_t	sm_cons_links[TTYMUX_MAX_LINKS];
-
-} sm_mux_state_t;
-
-/*
- * Driver instance private information.
- */
-typedef
-struct sm_ss
-{
-	dev_info_t	*sm_dip;	/* device tree information */
-	uint_t		sm_trflag;	/* debug and information levels */
-	sm_uqi_t	*sm_lconsole;	/* the current logical console */
-	sm_mux_state_t	*sm_ms;		/* state associated with a console */
-
-	sm_lqi_t	*sm_lqs;
-	sm_uqi_t	*sm_uqs;
-	uint_t		sm_break_abort_on;
-	uint_t		sm_ctrla_abort_on;
-
-	int		sm_min_redundancy;
-	char		sm_abs[SM_MAX_ABSLEN];
-
-} sm_ss_t;
-
-#ifdef	__cplusplus
-}
-#endif
-
-#endif	/* _TTYMUX_H */
