142 lines
2.5 KiB
C
Executable File
142 lines
2.5 KiB
C
Executable File
/*
|
|
* Copyright (c) 1990 by Sun Microsystems, Inc.
|
|
*/
|
|
|
|
#ident "@(#)options.c 1.7 93/06/15 SMI" /* SVr4 5.0 */
|
|
|
|
#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_identify(dev_info_t *devi);
|
|
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 */
|
|
options_identify, /* identify */
|
|
nulldev, /* probe */
|
|
options_attach, /* attach */
|
|
options_detach, /* detach */
|
|
nodev, /* reset */
|
|
(struct cb_ops *)0, /* driver operations */
|
|
(struct bus_ops *)0 /* bus operations */
|
|
|
|
};
|
|
|
|
/*
|
|
* 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_identify(dev_info_t *devi)
|
|
{
|
|
if (strcmp(ddi_get_name(devi), "options") == 0) {
|
|
return (DDI_IDENTIFIED);
|
|
}
|
|
return (DDI_NOT_IDENTIFIED);
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|