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/*
* 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 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sys/types.h>
#include <sys/conf.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
#include <sys/ddi_impldefs.h>
#include <sys/ddi_subrdefs.h>
#include <sys/obpdefs.h>
#include <sys/cmn_err.h>
#include <sys/errno.h>
#include <sys/kmem.h>
#include <sys/debug.h>
#include <sys/sysmacros.h>
#include <sys/autoconf.h>
#include <sys/modctl.h>
/*
* module central.c
*
* This module is a nexus driver designed to support the fhc nexus driver
* and all children below it. This driver does not handle any of the
* DDI functions passed up to it by the fhc driver, but instead allows
* them to bubble up to the root node. A consequence of this is that
* the maintainer of this code must watch for changes in the sun4u
* rootnexus driver to make sure they do not break this driver or any
* of its children.
*/
/*
* Function Prototypes
*/
static int
central_attach(dev_info_t *devi, ddi_attach_cmd_t cmd);
static int
central_detach(dev_info_t *devi, ddi_detach_cmd_t cmd);
/*
* Configuration Data Structures
*/
static struct bus_ops central_bus_ops = {
BUSO_REV,
ddi_bus_map, /* map */
0, /* get_intrspec */
0, /* add_intrspec */
0, /* remove_intrspec */
i_ddi_map_fault, /* map_fault */
ddi_no_dma_map, /* dma_map */
ddi_no_dma_allochdl,
ddi_no_dma_freehdl,
ddi_no_dma_bindhdl,
ddi_no_dma_unbindhdl,
ddi_no_dma_flush,
ddi_no_dma_win,
ddi_dma_mctl, /* dma_ctl */
ddi_ctlops, /* ctl */
ddi_bus_prop_op, /* prop_op */
0, /* (*bus_get_eventcookie)(); */
0, /* (*bus_add_eventcall)(); */
0, /* (*bus_remove_eventcall)(); */
0, /* (*bus_post_event)(); */
0, /* (*bus_intr_ctl)(); */
0, /* (*bus_config)(); */
0, /* (*bus_unconfig)(); */
0, /* (*bus_fm_init)(); */
0, /* (*bus_fm_fini)(); */
0, /* (*bus_fm_access_enter)(); */
0, /* (*bus_fm_access_exit)(); */
0, /* (*bus_power)(); */
i_ddi_intr_ops /* (*bus_intr_op)(); */
};
static struct dev_ops central_ops = {
DEVO_REV, /* rev */
0, /* refcnt */
ddi_no_info, /* getinfo */
nulldev, /* identify */
nulldev, /* probe */
central_attach, /* attach */
central_detach, /* detach */
nulldev, /* reset */
(struct cb_ops *)0, /* cb_ops */
¢ral_bus_ops, /* bus_ops */
nulldev, /* power */
ddi_quiesce_not_needed, /* quiesce */
};
extern struct mod_ops mod_driverops;
static struct modldrv modldrv = {
&mod_driverops, /* Type of module. This one is a driver */
"Central Nexus", /* Name of module. */
¢ral_ops, /* driver ops */
};
static struct modlinkage modlinkage = {
MODREV_1, /* rev */
(void *)&modldrv,
NULL
};
/*
* These are the module initialization routines.
*/
int
_init(void)
{
return (mod_install(&modlinkage));
}
int
_fini(void)
{
int error;
if ((error = mod_remove(&modlinkage)) != 0)
return (error);
return (0);
}
int
_info(struct modinfo *modinfop)
{
return (mod_info(&modlinkage, modinfop));
}
static int
central_attach(dev_info_t *devi, ddi_attach_cmd_t cmd)
{
switch (cmd) {
case DDI_ATTACH:
break;
case DDI_RESUME:
return (DDI_SUCCESS);
default:
return (DDI_FAILURE);
}
/* nothing to suspend/resume here */
(void) ddi_prop_update_string(DDI_DEV_T_NONE, devi,
"pm-hardware-state", "no-suspend-resume");
ddi_report_dev(devi);
return (DDI_SUCCESS);
}
/* ARGSUSED */
static int
central_detach(dev_info_t *devi, ddi_detach_cmd_t cmd)
{
switch (cmd) {
case DDI_SUSPEND:
case DDI_DETACH:
default:
return (DDI_FAILURE);
}
}
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