1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 2001 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #ifndef _TTYMUX_RCM_IMPL_H 28 #define _TTYMUX_RCM_IMPL_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #ifndef lint 37 #define _(x) gettext(x) 38 #else 39 #define _(x) x 40 #endif 41 42 #define UNKNOWN 1 /* flags */ 43 #define PRESENT 2 /* flags */ 44 #define REGISTERED 4 /* flags */ 45 #define CONNECTED 8 /* flags */ 46 #define DISCONNECTED 0x10 /* flags */ 47 48 /* RCM operations */ 49 #define TTYMUX_OFFLINE 1 50 #define TTYMUX_ONLINE 2 51 #define TTYMUX_REMOVE 3 52 #define TTYMUX_SUSPEND 4 53 #define TTYMUX_RESUME 5 54 55 /* 56 * Representation of a resource. 57 * All resources are placed in a cache structured as a doubly linked list 58 * (ie the next and prev fields). 59 * The dependencies list identifies which resources this resource is 60 * depending upon. 61 */ 62 typedef struct rsrc { 63 char *id; 64 dev_t dev; 65 int flags; 66 struct rsrc *next; 67 struct rsrc *prev; 68 struct link *dependencies; 69 } rsrc_t; 70 71 /* 72 * Representation of a pair of resources participating in a 73 * dependency relationship 74 * The dependency is cast in terms of a resource that is using 75 * another resource in order to provide a service. 76 * This structure is used to represent a ttymux minor node that 77 * has another serial device multiplexed under it. In this 78 * case user resource would correspond to the ttymux minor node and the 79 * the used resource would correspond to the multiplexed serial device. 80 * The linkid field refers to the STREAM's link identifier. 81 */ 82 typedef struct link { 83 rsrc_t *user; /* the using resource */ 84 rsrc_t *used; /* the used resource */ 85 int linkid; /* STREAM's link identifier */ 86 uint_t state; 87 int flags; 88 int (*connect)(struct link *); 89 int (*disconnect)(struct link *); 90 struct link *next; 91 } link_t; 92 93 #define MUXCTLLINK "/devices/multiplexer@0,0:ctl" 94 #define MUXCONLINK "/devices/multiplexer@0,0:con" 95 96 #ifdef __cplusplus 97 } 98 #endif 99 100 #endif /* _TTYMUX_RCM_IMPL_H */ 101