/*
* 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/errno.h>
#include <sys/conf.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
/*
* Configuration information
*/
static int options_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg,
void **result);
static int options_attach(dev_info_t *devi, ddi_attach_cmd_t cmd);
static int options_detach(dev_info_t *devi, ddi_detach_cmd_t cmd);
static dev_info_t *options_devi;
struct dev_ops options_ops = {
DEVO_REV, /* devo_rev, */
0, /* refcnt */
options_info, /* info */
nulldev, /* identify */
nulldev, /* probe */
options_attach, /* attach */
options_detach, /* detach */
nodev, /* reset */
(struct cb_ops *)0, /* driver operations */
(struct bus_ops *)0, /* bus operations */
nulldev, /* power */
ddi_quiesce_not_needed, /* quiesce */
};
/*
* Autoload Data and Autoload Entry
*/
#include <sys/modctl.h>
extern struct mod_ops mod_driverops;
static struct modldrv modldrv = {
&mod_driverops, /* Type of module. This one is a driver */
"options driver", /* Name of the module. */
&options_ops, /* driver ops */
};
static struct modlinkage modlinkage = {
MODREV_1, (void *)&modldrv
};
/*
* This is the driver initialization routine.
*/
int
_init()
{
return (mod_install(&modlinkage));
}
int
_fini()
{
return (EBUSY);
}
int
_info(modinfop)
struct modinfo *modinfop;
{
return (mod_info(&modlinkage, modinfop));
}
/* ARGSUSED */
static int
options_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result)
{
register int error;
switch (infocmd) {
case DDI_INFO_DEVT2DEVINFO:
if (options_devi == NULL) {
error = DDI_FAILURE;
} else {
*result = (void *) options_devi;
error = DDI_SUCCESS;
}
break;
case DDI_INFO_DEVT2INSTANCE:
*result = (void *)0;
error = DDI_SUCCESS;
break;
default:
error = DDI_FAILURE;
}
return (error);
}
static int
options_attach(dev_info_t *devi, ddi_attach_cmd_t cmd)
{
switch (cmd) {
case DDI_ATTACH:
options_devi = devi;
return (DDI_SUCCESS);
case DDI_RESUME:
return (DDI_SUCCESS);
default:
return (DDI_FAILURE);
}
}
/*ARGSUSED*/
static int
options_detach(dev_info_t *devi, ddi_detach_cmd_t cmd)
{
switch (cmd) {
case DDI_SUSPEND:
return (DDI_SUCCESS);
case DDI_DETACH:
default:
return (DDI_FAILURE);
}
}