| 1 | /* $NetBSD: icp_ioctl.c,v 1.21 2014/07/25 08:10:37 dholland 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-compatile with the ioctl interface for |
| 68 | * other OSs. |
| 69 | */ |
| 70 | |
| 71 | #include <sys/cdefs.h> |
| 72 | __KERNEL_RCSID(0, "$NetBSD: icp_ioctl.c,v 1.21 2014/07/25 08:10:37 dholland 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 | /* These are simply the same as ICP's "iir" driver for FreeBSD. */ |
| 89 | #define ICP_DRIVER_VERSION 1 |
| 90 | #define ICP_DRIVER_SUBVERSION 3 |
| 91 | |
| 92 | static dev_type_open(icpopen); |
| 93 | static dev_type_ioctl(icpioctl); |
| 94 | |
| 95 | const struct cdevsw icp_cdevsw = { |
| 96 | .d_open = icpopen, |
| 97 | .d_close = nullclose, |
| 98 | .d_read = noread, |
| 99 | .d_write = nowrite, |
| 100 | .d_ioctl = icpioctl, |
| 101 | .d_stop = nostop, |
| 102 | .d_tty = notty, |
| 103 | .d_poll = nopoll, |
| 104 | .d_mmap = nommap, |
| 105 | .d_kqfilter = nokqfilter, |
| 106 | .d_discard = nodiscard, |
| 107 | .d_flag = D_OTHER |
| 108 | }; |
| 109 | |
| 110 | extern struct cfdriver icp_cd; |
| 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 | } |
| 303 | |