ugen.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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
* 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 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* UGEN: USB Generic Driver
*
* The "Universal Generic Driver" (UGEN) for USB devices provides interfaces
* to talk to USB devices. This is very useful for Point of Sale sale
* devices and other simple devices like USB scanner, USB palm pilot.
* The UGEN provides a system call interface to USB devices enabling
* a USB device vendor to write an application for his
* device instead of writing a driver. This facilitates the vendor to write
* device management s/w quickly in userland.
*
* with the device.
*/
/* Global variables */
static void *ugen_skel_statep;
/* Prototypes declarations for the entry points */
void *, void **);
static int ugen_skel_power(dev_info_t *, int, int);
static int ugen_skel_strategy(struct buf *);
static int ugen_skel_poll(dev_t, short, int, short *,
struct pollhead **);
static int ugen_skel_disconnect_ev_cb(dev_info_t *);
static int ugen_skel_reconnect_ev_cb(dev_info_t *);
/* event support */
static usb_event_t ugen_skel_events = {
};
/* Driver cb_ops structure */
static struct cb_ops ugen_skel_cb_ops = {
ugen_skel_open, /* open */
ugen_skel_close, /* close */
nodev, /* strategy */
nodev, /* print */
nodev, /* dump */
ugen_skel_read, /* read */
ugen_skel_write, /* write */
nodev, /* ioctl */
nodev, /* devmap */
nodev, /* mmap */
nodev, /* segmap */
ugen_skel_poll, /* poll */
ddi_prop_op, /* cb_prop_op */
0, /* streamtab */
D_MP, /* Driver compatibility flag */
CB_REV, /* revision */
nodev, /* aread */
nodev /* awrite */
};
/*
* Modloading support
* driver dev_ops structure
*/
static struct dev_ops ugen_skel_ops = {
DEVO_REV, /* devo_rev, */
0, /* refct */
ugen_skel_getinfo, /* info */
nulldev, /* indetify */
nulldev, /* probe */
ugen_skel_attach, /* attach */
ugen_skel_detach, /* detach */
nodev, /* reset */
&ugen_skel_cb_ops, /* driver operations */
NULL, /* bus operations */
ugen_skel_power /* power */
};
&mod_driverops, /* Module type */
"USB Generic driver %I%", /* Name of the module. */
&ugen_skel_ops, /* driver ops */
};
static struct modlinkage modlinkage = {
(void *)&modldrv,
};
int
_init()
{
int rval;
sizeof (ugen_skel_state_t), UGEN_INSTANCES)) != 0) {
return (rval);
}
return (rval);
}
return (rval);
}
int
_fini()
{
int rval;
return (rval);
}
return (rval);
}
int
{
}
/*ARGSUSED*/
static int
void **result)
{
int rval = DDI_FAILURE;
int instance =
switch (infocmd) {
case DDI_INFO_DEVT2DEVINFO:
if (ugen_skelp != NULL) {
rval = DDI_SUCCESS;
}
} else {
}
break;
case DDI_INFO_DEVT2INSTANCE:
rval = DDI_SUCCESS;
break;
default:
break;
}
return (rval);
}
/*
* ugen_skel_attach()
*/
static int
{
int instance; /* Driver instance number */
int rval;
/* Get instance number */
switch (cmd) {
case DDI_ATTACH:
break;
case DDI_RESUME:
if (ugen_skelp == NULL) {
return (DDI_FAILURE);
}
default:
return (DDI_FAILURE);
}
DDI_SUCCESS) {
instance);
}
if (ugen_skelp == NULL) {
return (DDI_FAILURE);
}
USB_SUCCESS) {
goto fail;
}
/* get a ugen handle */
goto fail;
}
/* register for hotplug events */
goto fail;
}
return (DDI_SUCCESS);
fail:
if (ugen_skelp) {
}
return (DDI_FAILURE);
}
/*
* ugen_skel_detach()
*/
static int
{
int rval = USB_FAILURE;
if (ugen_skelp) {
switch (cmd) {
case DDI_DETACH:
if (rval == USB_SUCCESS) {
}
break;
case DDI_SUSPEND:
break;
default:
break;
}
}
}
/*
* ugen_skel_disconnect_ev_cb:
*/
static int
{
}
/*
* ugen_skel_reconnect_ev_cb:
*/
static int
{
}
/*
* ugen_skel_open:
*/
static int
{
/* deferred detach */
return (ENXIO);
}
}
/*
* ugen_skel_close()
*/
static int
{
}
/*
* ugen_skel_read/write()
*/
static int
{
if (ugen_skelp == NULL) {
return (ENXIO);
}
}
static int
{
if (ugen_skelp == NULL) {
return (ENXIO);
}
}
/*
* ugen_skel_poll
*/
static int
{
if (ugen_skelp == NULL) {
return (ENXIO);
}
}
/*
* ugen_skel_power:
* PM entry point
*/
static int
{
int rval;
if (ugen_skelp == NULL) {
return (DDI_FAILURE);
}
}