ttymux_rcm_impl.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* 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_RCM_IMPL_H
#define _TTYMUX_RCM_IMPL_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#ifndef lint
#define _(x) gettext(x)
#else
#define _(x) x
#endif
#define UNKNOWN 1 /* flags */
#define PRESENT 2 /* flags */
#define REGISTERED 4 /* flags */
#define CONNECTED 8 /* flags */
#define DISCONNECTED 0x10 /* flags */
/* RCM operations */
#define TTYMUX_OFFLINE 1
#define TTYMUX_ONLINE 2
#define TTYMUX_REMOVE 3
#define TTYMUX_SUSPEND 4
#define TTYMUX_RESUME 5
/*
* Representation of a resource.
* All resources are placed in a cache structured as a doubly linked list
* (ie the next and prev fields).
* The dependencies list identifies which resources this resource is
* depending upon.
*/
typedef struct rsrc {
char *id;
dev_t dev;
int flags;
struct rsrc *next;
struct rsrc *prev;
struct link *dependencies;
} rsrc_t;
/*
* Representation of a pair of resources participating in a
* dependency relationship
* The dependency is cast in terms of a resource that is using
* another resource in order to provide a service.
* This structure is used to represent a ttymux minor node that
* has another serial device multiplexed under it. In this
* case user resource would correspond to the ttymux minor node and the
* the used resource would correspond to the multiplexed serial device.
* The linkid field refers to the STREAM's link identifier.
*/
typedef struct link {
rsrc_t *user; /* the using resource */
rsrc_t *used; /* the used resource */
int linkid; /* STREAM's link identifier */
uint_t state;
int flags;
int (*connect)(struct link *);
int (*disconnect)(struct link *);
struct link *next;
} link_t;
#define MUXCTLLINK "/devices/multiplexer@0,0:ctl"
#define MUXCONLINK "/devices/multiplexer@0,0:con"
#ifdef __cplusplus
}
#endif
#endif /* _TTYMUX_RCM_IMPL_H */