icp_ioctl.c

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    1 /*      $NetBSD: icp_ioctl.c,v 1.23 2022/01/21 21:40:31 andvar 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  *
   19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
   20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
   23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   29  * POSSIBILITY OF SUCH DAMAGE.
   30  */
   31 
   32 /*
   33  *       Copyright (c) 2000-01 Intel Corporation
   34  *       All Rights Reserved
   35  *
   36  * Redistribution and use in source and binary forms, with or without
   37  * modification, are permitted provided that the following conditions
   38  * are met:
   39  * 1. Redistributions of source code must retain the above copyright
   40  *    notice, this list of conditions, and the following disclaimer,
   41  *    without modification, immediately at the beginning of the file.
   42  * 2. Redistributions in binary form must reproduce the above copyright
   43  *    notice, this list of conditions and the following disclaimer in the
   44  *    documentation and/or other materials provided with the distribution.
   45  * 3. The name of the author may not be used to endorse or promote products
   46  *    derived from this software without specific prior written permission.
   47  *
   48  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   49  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   50  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   51  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
   52  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   53  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   54  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   55  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   56  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   57  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   58  * SUCH DAMAGE.
   59  */
   60 
   61 /*
   62  * icp_ioctl.c: Ioctl interface for the ICP-Vortex management tools.
   63  *
   64  * Based on ICP's FreeBSD "iir" driver ioctl interface, written by
   65  * Achim Leubner <achim.leubner@intel.com>.
   66  *
   67  * This is intended to be ABI-compatible with the ioctl interface for
   68  * other OSs.
   69  */
   70 
   71 #include <sys/cdefs.h>
   72 __KERNEL_RCSID(0, "$NetBSD: icp_ioctl.c,v 1.23 2022/01/21 21:40:31 andvar Exp $");
   73 
   74 #include <sys/param.h>
   75 #include <sys/systm.h>
   76 #include <sys/kernel.h>
   77 #include <sys/device.h>
   78 #include <sys/proc.h>
   79 #include <sys/conf.h>
   80 #include <sys/ioctl.h>
   81 #include <sys/kauth.h>
   82 
   83 #include <sys/bus.h>
   84 
   85 #include <dev/ic/icpreg.h>
   86 #include <dev/ic/icpvar.h>
   87 
   88 #include "ioconf.h"
   89 
   90 /* These are simply the same as ICP's "iir" driver for FreeBSD. */
   91 #define ICP_DRIVER_VERSION              1
   92 #define ICP_DRIVER_SUBVERSION           3
   93 
   94 static dev_type_open(icpopen);
   95 static dev_type_ioctl(icpioctl);
   96 
   97 const struct cdevsw icp_cdevsw = {
   98         .d_open = icpopen,
   99         .d_close = nullclose,
  100         .d_read = noread,
  101         .d_write = nowrite,
  102         .d_ioctl = icpioctl,
  103         .d_stop = nostop,
  104         .d_tty = notty,
  105         .d_poll = nopoll,
  106         .d_mmap = nommap,
  107         .d_kqfilter = nokqfilter,
  108         .d_discard = nodiscard,
  109         .d_flag = D_OTHER
  110 };
  111 
  112 kmutex_t icp_ioctl_mutex;
  113 
  114 static int
  115 icpopen(dev_t dev, int flag, int mode, struct lwp *l)
  116 {
  117 
  118         if (device_lookup(&icp_cd, minor(dev)) == NULL)
  119                 return (ENXIO);
  120 
  121         return (0);
  122 }
  123 
  124 static int
  125 icpioctl(dev_t dev, u_long cmd, void *data, int flag,
  126     struct lwp *l)
  127 {
  128         int error = 0;
  129 
  130         mutex_enter(&icp_ioctl_mutex);
  131 
  132         switch (cmd) {
  133         case GDT_IOCTL_GENERAL:
  134             {
  135                 struct icp_softc *icp;
  136                 gdt_ucmd_t *ucmd = (void *) data;
  137 
  138                 error = kauth_authorize_device_passthru(l->l_cred, dev,
  139                     KAUTH_REQ_DEVICE_RAWIO_PASSTHRU_ALL, data);
  140                 if (error)
  141                         break;
  142 
  143                 icp = device_lookup_private(&icp_cd, ucmd->io_node);
  144                 if (icp == NULL) {
  145                         error = ENXIO;
  146                         break;
  147                 }
  148 
  149                 error = icp_ucmd(icp, ucmd);
  150                 break;
  151             }
  152 
  153         case GDT_IOCTL_DRVERS:
  154                 *(int *) data =
  155                     (ICP_DRIVER_VERSION << 8) | ICP_DRIVER_SUBVERSION;
  156                 break;
  157 
  158         case GDT_IOCTL_CTRTYPE:
  159             {
  160                 struct icp_softc *icp;
  161                 gdt_ctrt_t *ctrt = (void *) data;
  162 
  163                 icp = device_lookup_private(&icp_cd, ctrt->io_node);
  164                 if (icp == NULL) {
  165                         error = ENXIO;
  166                         break;
  167                 }
  168 
  169                 /* XXX magic numbers */
  170                 ctrt->oem_id = 0x8000;
  171                 ctrt->type = 0xfd;
  172                 ctrt->info = (icp->icp_pci_bus << 8) | (icp->icp_pci_device << 3);
  173                 ctrt->ext_type = 0x6000 | icp->icp_pci_subdevice_id;
  174                 ctrt->device_id = icp->icp_pci_device_id;
  175                 ctrt->sub_device_id = icp->icp_pci_subdevice_id;
  176                 break;
  177             }
  178 
  179         case GDT_IOCTL_OSVERS:
  180             {
  181                 gdt_osv_t *osv = (void *) data;
  182 
  183                 osv->oscode = 12;
  184 
  185                 /*
  186                  * __NetBSD_Version__ is encoded thusly:
  187                  *
  188                  *      MMmmrrpp00
  189                  *
  190                  * M = major version
  191                  * m = minor version
  192                  * r = release ["",A-Z[A-Z] but numeric]
  193                  * p = patchlevel
  194                  *
  195                  * Since the ABI is not supposed to change between
  196                  * patchlevels of the same major/minor version, we
  197                  * will encode major/minor/release into the returned
  198                  * data.
  199                  */
  200 
  201                 osv->version = __NetBSD_Version__ / 100000000;
  202                 osv->subversion = (__NetBSD_Version__ / 1000000) % 100;
  203                 osv->revision = (__NetBSD_Version__ / 10000) % 100;
  204 
  205                 strcpy(osv->name, ostype);
  206                 break;
  207             }
  208 
  209         case GDT_IOCTL_CTRCNT:
  210                 *(int *) data = icp_count;
  211                 break;
  212 
  213         case GDT_IOCTL_EVENT:
  214             {
  215                 struct icp_softc *icp;
  216                 gdt_event_t *evt = (void *) data;
  217                 gdt_evt_str *e = &evt->dvr;
  218                 int s;
  219 
  220                 icp = device_lookup_private(&icp_cd, minor(dev));
  221 
  222                 switch (evt->erase) {
  223                 case 0xff:
  224                         switch (evt->dvr.event_source) {
  225                         case GDT_ES_TEST:
  226                                 e->event_data.size =
  227                                     sizeof(e->event_data.eu.test);
  228                                 break;
  229 
  230                         case GDT_ES_DRIVER:
  231                                 e->event_data.size =
  232                                     sizeof(e->event_data.eu.driver);
  233                                 break;
  234 
  235                         case GDT_ES_SYNC:
  236                                 e->event_data.size =
  237                                     sizeof(e->event_data.eu.sync);
  238                                 break;
  239 
  240                         default:
  241                                 e->event_data.size =
  242                                     sizeof(e->event_data.eu.async);
  243                                 break;
  244                         }
  245                         s = splbio();
  246                         icp_store_event(icp, e->event_source, e->event_idx,
  247                             &e->event_data);
  248                         splx(s);
  249                         break;
  250 
  251                 case 0xfe:
  252                         s = splbio();
  253                         icp_clear_events(icp);
  254                         splx(s);
  255                         break;
  256 
  257                 case 0:
  258                         evt->handle = icp_read_event(icp, evt->handle, e);
  259                         break;
  260 
  261                 default:
  262                         icp_readapp_event(icp, (u_int8_t) evt->erase, e);
  263                         break;
  264                 }
  265                 break;
  266             }
  267 
  268         case GDT_IOCTL_STATIST:
  269                 memcpy(&icp_stats, data, sizeof(gdt_statist_t));
  270                 break;
  271 
  272 
  273         case GDT_IOCTL_RESCAN:
  274             {
  275                 struct icp_softc *icp;
  276                 gdt_rescan_t *rsc = (void *) data;
  277 
  278                 icp = device_lookup_private(&icp_cd, rsc->io_node);
  279                 if (icp == NULL) {
  280                         error = ENXIO;
  281                         break;
  282                 }
  283 
  284                 error = icp_freeze(icp);
  285                 if (error)
  286                         break;
  287                 if (rsc->flag == 0)
  288                         icp_rescan_all(icp);
  289                 else
  290                         icp_rescan(icp, rsc->hdr_no);
  291                 icp_unfreeze(icp);
  292                 break;
  293             }
  294 
  295         default:
  296                 error = ENOTTY;
  297         }
  298 
  299         mutex_exit(&icp_ioctl_mutex);
  300 
  301         return (error);
  302 }
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FreeBSD/Linux Kernel Cross Reference sys/dev/ic/icp_ioctl.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/icp_ioctl.c
