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NetBSD/sys/dev/ic/icp_ioctl.c

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/* $NetBSD: icp_ioctl.c,v 1.17 2007/10/19 11:59:53 ad Exp $ */
/*-
* Copyright (c) 2003 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of Wasabi Systems, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Copyright (c) 2000-01 Intel Corporation
* All Rights Reserved
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* icp_ioctl.c: Ioctl interface for the ICP-Vortex management tools.
*
* Based on ICP's FreeBSD "iir" driver ioctl interface, written by
* Achim Leubner <achim.leubner@intel.com>.
*
* This is intended to be ABI-compatile with the ioctl interface for
* other OSs.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: icp_ioctl.c,v 1.17 2007/10/19 11:59:53 ad Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/conf.h>
#include <sys/ioctl.h>
#include <sys/kauth.h>
#include <sys/bus.h>
#include <dev/ic/icpreg.h>
#include <dev/ic/icpvar.h>
/* These are simply the same as ICP's "iir" driver for FreeBSD. */
#define ICP_DRIVER_VERSION 1
#define ICP_DRIVER_SUBVERSION 3
static dev_type_open(icpopen);
static dev_type_ioctl(icpioctl);
const struct cdevsw icp_cdevsw = {
icpopen, nullclose, noread, nowrite, icpioctl,
nostop, notty, nopoll, nommap, nokqfilter, D_OTHER,
};
extern struct cfdriver icp_cd;
kmutex_t icp_ioctl_mutex;
static int
icpopen(dev_t dev, int flag, int mode, struct lwp *l)
{
if (device_lookup(&icp_cd, minor(dev)) == NULL)
return (ENXIO);
return (0);
}
static int
icpioctl(dev_t dev, u_long cmd, void *data, int flag,
struct lwp *l)
{
int error = 0;
mutex_enter(&icp_ioctl_mutex);
switch (cmd) {
case GDT_IOCTL_GENERAL:
{
struct icp_softc *icp;
gdt_ucmd_t *ucmd = (void *) data;
error = kauth_authorize_device_passthru(l->l_cred, dev,
KAUTH_REQ_DEVICE_RAWIO_PASSTHRU_ALL, data);
if (error)
break;
icp = device_lookup(&icp_cd, ucmd->io_node);
if (icp == NULL) {
error = ENXIO;
break;
}
error = icp_ucmd(icp, ucmd);
break;
}
case GDT_IOCTL_DRVERS:
*(int *) data =
(ICP_DRIVER_VERSION << 8) | ICP_DRIVER_SUBVERSION;
break;
case GDT_IOCTL_CTRTYPE:
{
struct icp_softc *icp;
gdt_ctrt_t *ctrt = (void *) data;
icp = device_lookup(&icp_cd, ctrt->io_node);
if (icp == NULL) {
error = ENXIO;
break;
}
/* XXX magic numbers */
ctrt->oem_id = 0x8000;
ctrt->type = 0xfd;
ctrt->info = (icp->icp_pci_bus << 8) | (icp->icp_pci_device << 3);
ctrt->ext_type = 0x6000 | icp->icp_pci_subdevice_id;
ctrt->device_id = icp->icp_pci_device_id;
ctrt->sub_device_id = icp->icp_pci_subdevice_id;
break;
}
case GDT_IOCTL_OSVERS:
{
gdt_osv_t *osv = (void *) data;
osv->oscode = 12;
/*
* __NetBSD_Version__ is encoded thusly:
*
* MMmmrrpp00
*
* M = major version
* m = minor version
* r = release ["",A-Z[A-Z] but numeric]
* p = patchlevel
*
* Since the ABI is not supposed to change between
* patchlevels of the same major/minor version, we
* will encode major/minor/release into the returned
* data.
*/
osv->version = __NetBSD_Version__ / 100000000;
osv->subversion = (__NetBSD_Version__ / 1000000) % 100;
osv->revision = (__NetBSD_Version__ / 10000) % 100;
strcpy(osv->name, ostype);
break;
}
case GDT_IOCTL_CTRCNT:
*(int *) data = icp_count;
break;
case GDT_IOCTL_EVENT:
{
struct icp_softc *icp;
gdt_event_t *evt = (void *) data;
gdt_evt_str *e = &evt->dvr;
int s;
icp = device_lookup(&icp_cd, minor(dev));
switch (evt->erase) {
case 0xff:
switch (evt->dvr.event_source) {
case GDT_ES_TEST:
e->event_data.size =
sizeof(e->event_data.eu.test);
break;
case GDT_ES_DRIVER:
e->event_data.size =
sizeof(e->event_data.eu.driver);
break;
case GDT_ES_SYNC:
e->event_data.size =
sizeof(e->event_data.eu.sync);
break;
default:
e->event_data.size =
sizeof(e->event_data.eu.async);
break;
}
s = splbio();
icp_store_event(icp, e->event_source, e->event_idx,
&e->event_data);
splx(s);
break;
case 0xfe:
s = splbio();
icp_clear_events(icp);
splx(s);
break;
case 0:
evt->handle = icp_read_event(icp, evt->handle, e);
break;
default:
icp_readapp_event(icp, (u_int8_t) evt->erase, e);
break;
}
break;
}
case GDT_IOCTL_STATIST:
memcpy(&icp_stats, data, sizeof(gdt_statist_t));
break;
case GDT_IOCTL_RESCAN:
{
struct icp_softc *icp;
gdt_rescan_t *rsc = (void *) data;
icp = device_lookup(&icp_cd, rsc->io_node);
if (icp == NULL) {
error = ENXIO;
break;
}
error = icp_freeze(icp);
if (error)
break;
if (rsc->flag == 0)
icp_rescan_all(icp);
else
icp_rescan(icp, rsc->hdr_no);
icp_unfreeze(icp);
break;
}
default:
error = ENOTTY;
}
mutex_exit(&icp_ioctl_mutex);
return (error);
}
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