/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (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 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _SYS_CONTRACT_DEVICE_IMPL_H
#define _SYS_CONTRACT_DEVICE_IMPL_H

#include <sys/contract_impl.h>
#include <sys/dditypes.h>
#include <sys/contract/device.h>
#include <sys/fs/snode.h>

#ifdef  __cplusplus
extern "C" {
#endif

/*
 * Result of negotiation end: event successfully occurred or not
 */
#define CT_EV_SUCCESS   150
#define CT_EV_FAILURE   151

struct ctmpl_device {
        ct_template_t   ctd_ctmpl;
        uint_t          ctd_aset;
        uint_t          ctd_noneg;
        char            *ctd_minor;
};

struct cont_device {
        contract_t      cond_contract;  /* common contract data */
        char            *cond_minor;  /* minor node resource in contract */
        dev_info_t      *cond_dip;      /* dip for minor node */
        dev_t           cond_devt;      /* dev_t of minor node */
        uint_t          cond_spec;      /* spec type of minor node */
        uint_t          cond_aset;      /* acceptable state set */
        uint_t          cond_noneg;     /* no negotiation if set */
        uint_t          cond_state;     /* current state of device */
        uint_t          cond_neg;       /* contract undergoing negotiation */
        uint64_t        cond_currev_id; /* id of event being negotiated */
        uint_t          cond_currev_type;  /* type of event being negotiated */
        uint_t          cond_currev_ack; /* ack/nack status of ev negotiation */
        list_node_t     cond_next;      /* linkage - devinfo's contracts */
};

/*
 * Kernel APIs
 */
extern ct_type_t *device_type;
/*
 * struct proc;
 */
void contract_device_init(void);
ct_ack_t contract_device_offline(dev_info_t *dip, dev_t dev, int spec_type);
void contract_device_degrade(dev_info_t *dip, dev_t dev, int spec_type);
void contract_device_undegrade(dev_info_t *dip, dev_t dev, int spec_type);
int contract_device_open(dev_t dev, int spec_type, contract_t **ctpp);
void contract_device_remove_dip(dev_info_t *dip);
ct_ack_t contract_device_negotiate(dev_info_t *dip, dev_t dev, int spec_type,
    uint_t evtype);
void contract_device_finalize(dev_info_t *dip, dev_t dev, int spec_type,
    uint_t evtype, int ct_result);
void contract_device_negend(dev_info_t *dip, dev_t dev, int spec_type,
    int result);

#ifdef  __cplusplus
}
#endif

#endif  /* _SYS_CONTRACT_DEVICE_IMPL_H */