icp_ioctl.c

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    1 /*      $NetBSD: icp_ioctl.c,v 1.13.2.1 2006/12/04 18:34:15 tron Exp $  */
    2 
    3 /*-
    4  * Copyright (c) 2003 The NetBSD Foundation, Inc.
    5  * All rights reserved.
    6  *
    7  * This code is derived from software contributed to The NetBSD Foundation
    8  * by Jason R. Thorpe of Wasabi Systems, Inc.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 3. All advertising materials mentioning features or use of this software
   19  *    must display the following acknowledgement:
   20  *        This product includes software developed by the NetBSD
   21  *        Foundation, Inc. and its contributors.
   22  * 4. Neither the name of The NetBSD Foundation nor the names of its
   23  *    contributors may be used to endorse or promote products derived
   24  *    from this software without specific prior written permission.
   25  *
   26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   36  * POSSIBILITY OF SUCH DAMAGE.
   37  */
   38 
   39 /*
   40  *       Copyright (c) 2000-01 Intel Corporation
   41  *       All Rights Reserved
   42  *
   43  * Redistribution and use in source and binary forms, with or without
   44  * modification, are permitted provided that the following conditions
   45  * are met:
   46  * 1. Redistributions of source code must retain the above copyright
   47  *    notice, this list of conditions, and the following disclaimer,
   48  *    without modification, immediately at the beginning of the file.
   49  * 2. Redistributions in binary form must reproduce the above copyright
   50  *    notice, this list of conditions and the following disclaimer in the
   51  *    documentation and/or other materials provided with the distribution.
   52  * 3. The name of the author may not be used to endorse or promote products
   53  *    derived from this software without specific prior written permission.
   54  *
   55  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   56  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   57  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   58  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
   59  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   60  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   61  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   62  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   63  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   64  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   65  * SUCH DAMAGE.
   66  */
   67 
   68 /*
   69  * icp_ioctl.c: Ioctl interface for the ICP-Vortex management tools.
   70  *
   71  * Based on ICP's FreeBSD "iir" driver ioctl interface, written by
   72  * Achim Leubner <achim.leubner@intel.com>.
   73  *
   74  * This is intended to be ABI-compatile with the ioctl interface for
   75  * other OSs.
   76  */
   77 
   78 #include <sys/cdefs.h>
   79 __KERNEL_RCSID(0, "$NetBSD: icp_ioctl.c,v 1.13.2.1 2006/12/04 18:34:15 tron Exp $");
   80 
   81 #include <sys/param.h>
   82 #include <sys/systm.h>
   83 #include <sys/kernel.h>
   84 #include <sys/device.h>
   85 #include <sys/proc.h>
   86 #include <sys/conf.h>
   87 #include <sys/ioctl.h>
   88 #include <sys/kauth.h>
   89 
   90 #include <machine/bus.h>
   91 
   92 #include <dev/ic/icpreg.h>
   93 #include <dev/ic/icpvar.h>
   94 
   95 /* These are simply the same as ICP's "iir" driver for FreeBSD. */
   96 #define ICP_DRIVER_VERSION              1
   97 #define ICP_DRIVER_SUBVERSION           3
   98 
   99 static dev_type_open(icpopen);
  100 static dev_type_ioctl(icpioctl);
  101 
  102 const struct cdevsw icp_cdevsw = {
  103         icpopen, nullclose, noread, nowrite, icpioctl,
  104         nostop, notty, nopoll, nommap, nokqfilter, D_OTHER,
  105 };
  106 
  107 extern struct cfdriver icp_cd;
  108 
  109 static struct lock icp_ioctl_mutex =
  110     LOCK_INITIALIZER(PRIBIO|PCATCH, "icplk", 0, 0);
  111 
  112 static int
  113 icpopen(dev_t dev, int flag, int mode, struct lwp *l)
  114 {
  115 
  116         if (device_lookup(&icp_cd, minor(dev)) == NULL)
  117                 return (ENXIO);
  118 
  119         return (0);
  120 }
  121 
  122 static int
  123 icpioctl(dev_t dev, u_long cmd, caddr_t data, int flag,
  124     struct lwp *l)
  125 {
  126         int error;
  127 
  128         if ((error = lockmgr(&icp_ioctl_mutex, LK_EXCLUSIVE, NULL)) != 0)
  129                 return (error);
  130 
  131         switch (cmd) {
  132         case GDT_IOCTL_GENERAL:
  133             {
  134                 struct icp_softc *icp;
  135                 gdt_ucmd_t *ucmd = (void *) data;
  136 
  137                 error = kauth_authorize_device_passthru(l->l_cred, dev,
  138                     KAUTH_REQ_DEVICE_RAWIO_PASSTHRU_ALL, data);
  139                 if (error)
  140                         break;
  141 
  142                 icp = device_lookup(&icp_cd, ucmd->io_node);
  143                 if (icp == NULL) {
  144                         error = ENXIO;
  145                         break;
  146                 }
  147 
  148                 error = icp_ucmd(icp, ucmd);
  149                 break;
  150             }
  151 
  152         case GDT_IOCTL_DRVERS:
  153                 *(int *) data =
  154                     (ICP_DRIVER_VERSION << 8) | ICP_DRIVER_SUBVERSION;
  155                 break;
  156 
  157         case GDT_IOCTL_CTRTYPE:
  158             {
  159                 struct icp_softc *icp;
  160                 gdt_ctrt_t *ctrt = (void *) data;
  161 
  162                 icp = device_lookup(&icp_cd, ctrt->io_node);
  163                 if (icp == NULL) {
  164                         error = ENXIO;
  165                         break;
  166                 }
  167 
  168                 /* XXX magic numbers */
  169                 ctrt->oem_id = 0x8000;
  170                 ctrt->type = 0xfd;
  171                 ctrt->info = (icp->icp_pci_bus << 8) | (icp->icp_pci_device << 3);
  172                 ctrt->ext_type = 0x6000 | icp->icp_pci_subdevice_id;
  173                 ctrt->device_id = icp->icp_pci_device_id;
  174                 ctrt->sub_device_id = icp->icp_pci_subdevice_id;
  175                 break;
  176             }
  177 
  178         case GDT_IOCTL_OSVERS:
  179             {
  180                 gdt_osv_t *osv = (void *) data;
  181 
  182                 osv->oscode = 12;
  183 
  184                 /*
  185                  * __NetBSD_Version__ is encoded thusly:
  186                  *
  187                  *      MMmmrrpp00
  188                  *
  189                  * M = major version
  190                  * m = minor version
  191                  * r = release ["",A-Z[A-Z] but numeric]
  192                  * p = patchlevel
  193                  *
  194                  * Since the ABI is not supposed to change between
  195                  * patchlevels of the same major/minor version, we
  196                  * will encode major/minor/release into the returned
  197                  * data.
  198                  */
  199 
  200                 osv->version = __NetBSD_Version__ / 100000000;
  201                 osv->subversion = (__NetBSD_Version__ / 1000000) % 100;
  202                 osv->revision = (__NetBSD_Version__ / 10000) % 100;
  203 
  204                 strcpy(osv->name, ostype);
  205                 break;
  206             }
  207 
  208         case GDT_IOCTL_CTRCNT:
  209                 *(int *) data = icp_count;
  210                 break;
  211 
  212         case GDT_IOCTL_EVENT:
  213             {
  214                 struct icp_softc *icp;
  215                 gdt_event_t *evt = (void *) data;
  216                 gdt_evt_str *e = &evt->dvr;
  217                 int s;
  218 
  219                 icp = device_lookup(&icp_cd, minor(dev));
  220 
  221                 switch (evt->erase) {
  222                 case 0xff:
  223                         switch (evt->dvr.event_source) {
  224                         case GDT_ES_TEST:
  225                                 e->event_data.size =
  226                                     sizeof(e->event_data.eu.test);
  227                                 break;
  228 
  229                         case GDT_ES_DRIVER:
  230                                 e->event_data.size =
  231                                     sizeof(e->event_data.eu.driver);
  232                                 break;
  233 
  234                         case GDT_ES_SYNC:
  235                                 e->event_data.size =
  236                                     sizeof(e->event_data.eu.sync);
  237                                 break;
  238 
  239                         default:
  240                                 e->event_data.size =
  241                                     sizeof(e->event_data.eu.async);
  242                                 break;
  243                         }
  244                         s = splbio();
  245                         icp_store_event(icp, e->event_source, e->event_idx,
  246                             &e->event_data);
  247                         splx(s);
  248                         break;
  249 
  250                 case 0xfe:
  251                         s = splbio();
  252                         icp_clear_events(icp);
  253                         splx(s);
  254                         break;
  255 
  256                 case 0:
  257                         evt->handle = icp_read_event(icp, evt->handle, e);
  258                         break;
  259 
  260                 default:
  261                         icp_readapp_event(icp, (u_int8_t) evt->erase, e);
  262                         break;
  263                 }
  264                 break;
  265             }
  266 
  267         case GDT_IOCTL_STATIST:
  268                 memcpy(&icp_stats, data, sizeof(gdt_statist_t));
  269                 break;
  270 
  271 
  272         case GDT_IOCTL_RESCAN:
  273             {
  274                 struct icp_softc *icp;
  275                 gdt_rescan_t *rsc = (void *) data;
  276 
  277                 icp = device_lookup(&icp_cd, rsc->io_node);
  278                 if (icp == NULL) {
  279                         error = ENXIO;
  280                         break;
  281                 }
  282 
  283                 error = icp_freeze(icp);
  284                 if (error)
  285                         break;
  286                 if (rsc->flag == 0)
  287                         icp_rescan_all(icp);
  288                 else
  289                         icp_rescan(icp, rsc->hdr_no);
  290                 icp_unfreeze(icp);
  291                 break;
  292             }
  293 
  294         default:
  295                 error = ENOTTY;
  296         }
  297 
  298         (void) lockmgr(&icp_ioctl_mutex, LK_RELEASE, NULL);
  299 
  300         return (error);
  301 }
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FreeBSD/Linux Kernel Cross Reference sys/dev/ic/icp_ioctl.c

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sys/dev/ic/icp_ioctl.c
