if_ndis_pci.c revision 330897
1/*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 2003 5 * Bill Paul <wpaul@windriver.com>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Bill Paul. 18 * 4. Neither the name of the author nor the names of any co-contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35#include <sys/cdefs.h> 36__FBSDID("$FreeBSD: stable/11/sys/dev/if_ndis/if_ndis_pci.c 330897 2018-03-14 03:19:51Z eadler $"); 37 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/kernel.h> 41#include <sys/malloc.h> 42#include <sys/module.h> 43#include <sys/socket.h> 44#include <sys/queue.h> 45#include <sys/sysctl.h> 46 47#include <net/if.h> 48#include <net/if_var.h> 49#include <net/if_arp.h> 50#include <net/if_media.h> 51#include <net/ethernet.h> 52 53#include <machine/bus.h> 54#include <machine/resource.h> 55#include <sys/bus.h> 56#include <sys/rman.h> 57 58#include <net80211/ieee80211_var.h> 59 60#include <dev/pci/pcireg.h> 61#include <dev/pci/pcivar.h> 62#include <dev/usb/usb.h> 63#include <dev/usb/usbdi.h> 64 65#include <compat/ndis/pe_var.h> 66#include <compat/ndis/cfg_var.h> 67#include <compat/ndis/resource_var.h> 68#include <compat/ndis/ntoskrnl_var.h> 69#include <compat/ndis/ndis_var.h> 70#include <dev/if_ndis/if_ndisvar.h> 71 72MODULE_DEPEND(ndis, pci, 1, 1, 1); 73 74static int ndis_probe_pci (device_t); 75static int ndis_attach_pci (device_t); 76static struct resource_list *ndis_get_resource_list 77 (device_t, device_t); 78static int ndis_devcompare (interface_type, 79 struct ndis_pci_type *, device_t); 80extern int ndisdrv_modevent (module_t, int, void *); 81extern int ndis_attach (device_t); 82extern int ndis_shutdown (device_t); 83extern int ndis_detach (device_t); 84extern int ndis_suspend (device_t); 85extern int ndis_resume (device_t); 86 87static device_method_t ndis_methods[] = { 88 /* Device interface */ 89 DEVMETHOD(device_probe, ndis_probe_pci), 90 DEVMETHOD(device_attach, ndis_attach_pci), 91 DEVMETHOD(device_detach, ndis_detach), 92 DEVMETHOD(device_shutdown, ndis_shutdown), 93 DEVMETHOD(device_suspend, ndis_suspend), 94 DEVMETHOD(device_resume, ndis_resume), 95 96 /* Bus interface */ 97 DEVMETHOD(bus_get_resource_list, ndis_get_resource_list), 98 99 { 0, 0 } 100}; 101 102static driver_t ndis_driver = { 103 "ndis", 104 ndis_methods, 105 sizeof(struct ndis_softc) 106}; 107 108static devclass_t ndis_devclass; 109 110DRIVER_MODULE(ndis, pci, ndis_driver, ndis_devclass, ndisdrv_modevent, 0); 111 112static int 113ndis_devcompare(bustype, t, dev) 114 interface_type bustype; 115 struct ndis_pci_type *t; 116 device_t dev; 117{ 118 uint16_t vid, did; 119 uint32_t subsys; 120 121 if (bustype != PCIBus) 122 return(FALSE); 123 124 vid = pci_get_vendor(dev); 125 did = pci_get_device(dev); 126 subsys = pci_get_subdevice(dev); 127 subsys = (subsys << 16) | pci_get_subvendor(dev); 128 129 while(t->ndis_name != NULL) { 130 if ((t->ndis_vid == vid) && (t->ndis_did == did) && 131 (t->ndis_subsys == subsys || t->ndis_subsys == 0)) { 132 device_set_desc(dev, t->ndis_name); 133 return(TRUE); 134 } 135 t++; 136 } 137 138 return(FALSE); 139} 140 141/* 142 * Probe for an NDIS device. Check the PCI vendor and device 143 * IDs against our list and return a device name if we find a match. 144 */ 145static int 146ndis_probe_pci(dev) 147 device_t dev; 148{ 149 driver_object *drv; 150 struct drvdb_ent *db; 151 152 drv = windrv_lookup(0, "PCI Bus"); 153 154 if (drv == NULL) 155 return(ENXIO); 156 157 db = windrv_match((matchfuncptr)ndis_devcompare, dev); 158 159 if (db != NULL) { 160 /* Create PDO for this device instance */ 161 windrv_create_pdo(drv, dev); 162 return(0); 163 } 164 165 return(ENXIO); 166} 167 168/* 169 * Attach the interface. Allocate softc structures, do ifmedia 170 * setup and ethernet/BPF attach. 171 */ 172static int 173ndis_attach_pci(dev) 174 device_t dev; 175{ 176 struct ndis_softc *sc; 177 int unit, error = 0, rid; 178 struct ndis_pci_type *t; 179 int devidx = 0, defidx = 0; 180 struct resource_list *rl; 181 struct resource_list_entry *rle; 182 struct drvdb_ent *db; 183 uint16_t vid, did; 184 uint32_t subsys; 185 186 sc = device_get_softc(dev); 187 unit = device_get_unit(dev); 188 sc->ndis_dev = dev; 189 190 db = windrv_match((matchfuncptr)ndis_devcompare, dev); 191 if (db == NULL) 192 return (ENXIO); 193 sc->ndis_dobj = db->windrv_object; 194 sc->ndis_regvals = db->windrv_regvals; 195 196 /* 197 * Map control/status registers. 198 */ 199 200 pci_enable_busmaster(dev); 201 202 rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev); 203 if (rl != NULL) { 204 STAILQ_FOREACH(rle, rl, link) { 205 switch (rle->type) { 206 case SYS_RES_IOPORT: 207 sc->ndis_io_rid = rle->rid; 208 sc->ndis_res_io = bus_alloc_resource_any(dev, 209 SYS_RES_IOPORT, &sc->ndis_io_rid, 210 RF_ACTIVE); 211 if (sc->ndis_res_io == NULL) { 212 device_printf(dev, 213 "couldn't map iospace\n"); 214 error = ENXIO; 215 goto fail; 216 } 217 break; 218 case SYS_RES_MEMORY: 219 if (sc->ndis_res_altmem != NULL && 220 sc->ndis_res_mem != NULL) { 221 device_printf(dev, 222 "too many memory resources\n"); 223 error = ENXIO; 224 goto fail; 225 } 226 if (sc->ndis_res_mem) { 227 sc->ndis_altmem_rid = rle->rid; 228 sc->ndis_res_altmem = 229 bus_alloc_resource_any(dev, 230 SYS_RES_MEMORY, 231 &sc->ndis_altmem_rid, 232 RF_ACTIVE); 233 if (sc->ndis_res_altmem == NULL) { 234 device_printf(dev, 235 "couldn't map alt " 236 "memory\n"); 237 error = ENXIO; 238 goto fail; 239 } 240 } else { 241 sc->ndis_mem_rid = rle->rid; 242 sc->ndis_res_mem = 243 bus_alloc_resource_any(dev, 244 SYS_RES_MEMORY, 245 &sc->ndis_mem_rid, 246 RF_ACTIVE); 247 if (sc->ndis_res_mem == NULL) { 248 device_printf(dev, 249 "couldn't map memory\n"); 250 error = ENXIO; 251 goto fail; 252 } 253 } 254 break; 255 case SYS_RES_IRQ: 256 rid = rle->rid; 257 sc->ndis_irq = bus_alloc_resource_any(dev, 258 SYS_RES_IRQ, &rid, 259 RF_SHAREABLE | RF_ACTIVE); 260 if (sc->ndis_irq == NULL) { 261 device_printf(dev, 262 "couldn't map interrupt\n"); 263 error = ENXIO; 264 goto fail; 265 } 266 break; 267 default: 268 break; 269 } 270 sc->ndis_rescnt++; 271 } 272 } 273 274 /* 275 * If the BIOS did not set up an interrupt for this device, 276 * the resource traversal code above will fail to set up 277 * an IRQ resource. This is usually a bad thing, so try to 278 * force the allocation of an interrupt here. If one was 279 * not assigned to us by the BIOS, bus_alloc_resource() 280 * should route one for us. 281 */ 282 if (sc->ndis_irq == NULL) { 283 rid = 0; 284 sc->ndis_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 285 &rid, RF_SHAREABLE | RF_ACTIVE); 286 if (sc->ndis_irq == NULL) { 287 device_printf(dev, "couldn't route interrupt\n"); 288 error = ENXIO; 289 goto fail; 290 } 291 sc->ndis_rescnt++; 292 } 293 294 /* 295 * Allocate the parent bus DMA tag appropriate for PCI. 296 */ 297#define NDIS_NSEG_NEW 32 298 error = bus_dma_tag_create(bus_get_dma_tag(dev),/* PCI parent */ 299 1, 0, /* alignment, boundary */ 300 BUS_SPACE_MAXADDR_32BIT,/* lowaddr */ 301 BUS_SPACE_MAXADDR, /* highaddr */ 302 NULL, NULL, /* filter, filterarg */ 303 DFLTPHYS, NDIS_NSEG_NEW,/* maxsize, nsegments */ 304 BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */ 305 BUS_DMA_ALLOCNOW, /* flags */ 306 NULL, NULL, /* lockfunc, lockarg */ 307 &sc->ndis_parent_tag); 308 309 if (error) 310 goto fail; 311 312 sc->ndis_iftype = PCIBus; 313 314 /* Figure out exactly which device we matched. */ 315 316 vid = pci_get_vendor(dev); 317 did = pci_get_device(dev); 318 subsys = pci_get_subdevice(dev); 319 subsys = (subsys << 16) | pci_get_subvendor(dev); 320 321 t = db->windrv_devlist; 322 323 while(t->ndis_name != NULL) { 324 if (t->ndis_vid == vid && t->ndis_did == did) { 325 if (t->ndis_subsys == 0) 326 defidx = devidx; 327 else if (t->ndis_subsys == subsys) 328 break; 329 } 330 t++; 331 devidx++; 332 } 333 334 if (t->ndis_name == NULL) 335 sc->ndis_devidx = defidx; 336 else 337 sc->ndis_devidx = devidx; 338 339 error = ndis_attach(dev); 340 341fail: 342 return(error); 343} 344 345static struct resource_list * 346ndis_get_resource_list(dev, child) 347 device_t dev; 348 device_t child; 349{ 350 struct ndis_softc *sc; 351 352 sc = device_get_softc(dev); 353 return (BUS_GET_RESOURCE_LIST(device_get_parent(sc->ndis_dev), dev)); 354} 355