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      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 (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 /*
     22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 #ifndef	_SYS_CONTRACT_DEVICE_IMPL_H
     27 #define	_SYS_CONTRACT_DEVICE_IMPL_H
     28 
     29 #pragma ident	"@(#)device_impl.h	1.1	07/08/09 SMI"
     30 
     31 #include <sys/contract_impl.h>
     32 #include <sys/dditypes.h>
     33 #include <sys/contract/device.h>
     34 #include <sys/fs/snode.h>
     35 
     36 #ifdef	__cplusplus
     37 extern "C" {
     38 #endif
     39 
     40 /*
     41  * Result of negotiation end: event successfully occurred or not
     42  */
     43 #define	CT_EV_SUCCESS	150
     44 #define	CT_EV_FAILURE	151
     45 
     46 struct ctmpl_device {
     47 	ct_template_t	ctd_ctmpl;
     48 	uint_t		ctd_aset;
     49 	uint_t		ctd_noneg;
     50 	char		*ctd_minor;
     51 };
     52 
     53 struct cont_device {
     54 	contract_t	cond_contract;	/* common contract data */
     55 	char		*cond_minor;  /* minor node resource in contract */
     56 	dev_info_t	*cond_dip;	/* dip for minor node */
     57 	dev_t		cond_devt;	/* dev_t of minor node */
     58 	uint_t		cond_spec;	/* spec type of minor node */
     59 	uint_t		cond_aset;	/* acceptable state set */
     60 	uint_t		cond_noneg;	/* no negotiation if set */
     61 	uint_t		cond_state;	/* current state of device */
     62 	uint_t		cond_neg;	/* contract undergoing negotiation */
     63 	uint64_t	cond_currev_id;	/* id of event being negotiated */
     64 	uint_t		cond_currev_type;  /* type of event being negotiated */
     65 	uint_t		cond_currev_ack; /* ack/nack status of ev negotiation */
     66 	list_node_t	cond_next;	/* linkage - devinfo's contracts */
     67 };
     68 
     69 /*
     70  * Kernel APIs
     71  */
     72 extern ct_type_t *device_type;
     73 /*
     74  * struct proc;
     75  */
     76 void contract_device_init(void);
     77 ct_ack_t contract_device_offline(dev_info_t *dip, dev_t dev, int spec_type);
     78 void contract_device_degrade(dev_info_t *dip, dev_t dev, int spec_type);
     79 void contract_device_undegrade(dev_info_t *dip, dev_t dev, int spec_type);
     80 int contract_device_open(dev_t dev, int spec_type, contract_t **ctpp);
     81 void contract_device_remove_dip(dev_info_t *dip);
     82 ct_ack_t contract_device_negotiate(dev_info_t *dip, dev_t dev, int spec_type,
     83     uint_t evtype);
     84 void contract_device_finalize(dev_info_t *dip, dev_t dev, int spec_type,
     85     uint_t evtype, int ct_result);
     86 void contract_device_negend(dev_info_t *dip, dev_t dev, int spec_type,
     87     int result);
     88 
     89 #ifdef	__cplusplus
     90 }
     91 #endif
     92 
     93 #endif	/* _SYS_CONTRACT_DEVICE_IMPL_H */
     94