sys/dev/netif/ndis/if_ndis_pci.c

   1 /*-
   2  * Copyright (c) 2003
   3  *      Bill Paul <wpaul@windriver.com>.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by Bill Paul.
  16  * 4. Neither the name of the author nor the names of any co-contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
  24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  30  * THE POSSIBILITY OF SUCH DAMAGE.
  31  *
  32  * $FreeBSD: head/sys/dev/if_ndis/if_ndis_pci.c 292411 2015-12-17 21:01:19Z glebius $
  33  */
  34
  35 #include <sys/param.h>
  36 #include <sys/systm.h>
  37 #include <sys/kernel.h>
  38 #include <sys/malloc.h>
  39 #include <sys/module.h>
  40 #include <sys/socket.h>
  41 #include <sys/queue.h>
  42 #include <sys/sysctl.h>
  43 #include <sys/lock.h>
  44
  45 #include <net/if.h>
  46 #include <net/if_var.h>
  47 #include <net/if_arp.h>
  48 #include <net/if_media.h>
  49 #include <net/ethernet.h>
  50
  51 #if !defined(__DragonFly__)
  52 #include <machine/bus.h>
  53 #include <machine/resource.h>
  54 #endif
  55 #include <sys/bus.h>
  56 #include <sys/rman.h>
  57
  58 #if defined(__DragonFly__)
  59 #include <netproto/802_11/ieee80211_var.h>
  60 #else
  61 #include <net80211/ieee80211_var.h>
  62 #endif
  63
  64 #if defined(__DragonFly__)
  65 #include <bus/pci/pcireg.h>
  66 #include <bus/pci/pcivar.h>
  67 #include <bus/u4b/usb.h>
  68 #include <bus/u4b/usbdi.h>
  69 #else
  70 #include <dev/pci/pcireg.h>
  71 #include <dev/pci/pcivar.h>
  72 #include <dev/usb/usb.h>
  73 #include <dev/usb/usbdi.h>
  74 #endif
  75
  76 #if defined(__DragonFly__)
  77 #include <emulation/ndis/pe_var.h>
  78 #include <emulation/ndis/cfg_var.h>
  79 #include <emulation/ndis/resource_var.h>
  80 #include <emulation/ndis/ntoskrnl_var.h>
  81 #include <emulation/ndis/ndis_var.h>
  82 #include <dev/netif/ndis/if_ndisvar.h>
  83 #else
  84 #include <compat/ndis/pe_var.h>
  85 #include <compat/ndis/cfg_var.h>
  86 #include <compat/ndis/resource_var.h>
  87 #include <compat/ndis/ntoskrnl_var.h>
  88 #include <compat/ndis/ndis_var.h>
  89 #include <dev/if_ndis/if_ndisvar.h>
  90 #endif
  91
  92 MODULE_DEPEND(if_ndis, pci, 1, 1, 1);
  93
  94 static int ndis_probe_pci       (device_t);
  95 static int ndis_attach_pci      (device_t);
  96 static struct resource_list *ndis_get_resource_list
  97                                 (device_t, device_t);
  98 static int ndis_devcompare      (interface_type,
  99                                  struct ndis_pci_type *, device_t);
 100 extern int ndisdrv_modevent     (module_t, int, void *);
 101 extern int ndis_attach          (device_t);
 102 extern int ndis_shutdown        (device_t);
 103 extern int ndis_detach          (device_t);
 104 extern int ndis_suspend         (device_t);
 105 extern int ndis_resume          (device_t);
 106
 107 static device_method_t ndis_methods[] = {
 108         /* Device interface */
 109         DEVMETHOD(device_probe,         ndis_probe_pci),
 110         DEVMETHOD(device_attach,        ndis_attach_pci),
 111         DEVMETHOD(device_detach,        ndis_detach),
 112         DEVMETHOD(device_shutdown,      ndis_shutdown),
 113         DEVMETHOD(device_suspend,       ndis_suspend),
 114         DEVMETHOD(device_resume,        ndis_resume),
 115
 116         /* Bus interface */
 117         DEVMETHOD(bus_get_resource_list, ndis_get_resource_list),
 118
 119         DEVMETHOD_END
 120 };
 121
 122 static driver_t ndis_driver = {
 123         "ndis",
 124         ndis_methods,
 125         sizeof(struct ndis_softc)
 126 };
 127
 128 static devclass_t ndis_devclass;
 129
 130 DRIVER_MODULE(if_ndis, pci, ndis_driver, ndis_devclass, ndisdrv_modevent,
 131     NULL);
 132
 133 static int
 134 ndis_devcompare(interface_type bustype, struct ndis_pci_type *t, device_t dev)
 135 {
 136         uint16_t                vid, did;
 137         uint32_t                subsys;
 138
 139         if (bustype != PCIBus)
 140                 return(FALSE);
 141
 142         vid = pci_get_vendor(dev);
 143         did = pci_get_device(dev);
 144         subsys = pci_get_subdevice(dev);
 145         subsys = (subsys << 16) | pci_get_subvendor(dev);
 146
 147         while(t->ndis_name != NULL) {
 148                 if ((t->ndis_vid == vid) && (t->ndis_did == did) &&
 149                     (t->ndis_subsys == subsys || t->ndis_subsys == 0)) {
 150                         device_set_desc(dev, t->ndis_name);
 151                         return(TRUE);
 152                 }
 153                 t++;
 154         }
 155
 156         return(FALSE);
 157 }
 158
 159 /*
 160  * Probe for an NDIS device. Check the PCI vendor and device
 161  * IDs against our list and return a device name if we find a match.
 162  */
 163 static int
 164 ndis_probe_pci(device_t dev)
 165 {
 166         driver_object           *drv;
 167         struct drvdb_ent        *db;
 168
 169         drv = windrv_lookup(0, "PCI Bus");
 170
 171         if (drv == NULL)
 172                 return(ENXIO);
 173
 174         db = windrv_match((matchfuncptr)ndis_devcompare, dev);
 175
 176         if (db != NULL) {
 177                 /* Create PDO for this device instance */
 178                 windrv_create_pdo(drv, dev);
 179                 return(0);
 180         }
 181
 182         return(ENXIO);
 183 }
 184
 185 /*
 186  * Attach the interface. Allocate softc structures, do ifmedia
 187  * setup and ethernet/BPF attach.
 188  */
 189 static int
 190 ndis_attach_pci(device_t dev)
 191 {
 192         struct ndis_softc       *sc;
 193         int                     unit, error = 0, rid;
 194         struct ndis_pci_type    *t;
 195         int                     devidx = 0, defidx = 0;
 196         struct resource_list    *rl;
 197         struct resource_list_entry      *rle;
 198         struct drvdb_ent        *db;
 199         uint16_t                vid, did;
 200         uint32_t                subsys;
 201
 202         sc = device_get_softc(dev);
 203         unit = device_get_unit(dev);
 204         sc->ndis_dev = dev;
 205
 206         db = windrv_match((matchfuncptr)ndis_devcompare, dev);
 207         if (db == NULL)
 208                 return (ENXIO);
 209         sc->ndis_dobj = db->windrv_object;
 210         sc->ndis_regvals = db->windrv_regvals;
 211
 212         /*
 213          * Map control/status registers.
 214          */
 215
 216         pci_enable_busmaster(dev);
 217
 218         rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev);
 219         if (rl != NULL) {
 220                 SLIST_FOREACH(rle, rl, link) {
 221                         switch (rle->type) {
 222                         case SYS_RES_IOPORT:
 223                                 sc->ndis_io_rid = rle->rid;
 224                                 sc->ndis_res_io = bus_alloc_resource_any(dev,
 225                                     SYS_RES_IOPORT, &sc->ndis_io_rid,
 226                                     RF_ACTIVE);
 227                                 if (sc->ndis_res_io == NULL) {
 228                                         device_printf(dev,
 229                                             "couldn't map iospace\n");
 230                                         error = ENXIO;
 231                                         goto fail;
 232                                 }
 233                                 break;
 234                         case SYS_RES_MEMORY:
 235                                 if (sc->ndis_res_altmem != NULL &&
 236                                     sc->ndis_res_mem != NULL) {
 237                                         device_printf(dev,
 238                                             "too many memory resources\n");
 239                                         error = ENXIO;
 240                                         goto fail;
 241                                 }
 242                                 if (sc->ndis_res_mem) {
 243                                         sc->ndis_altmem_rid = rle->rid;
 244                                         sc->ndis_res_altmem =
 245                                             bus_alloc_resource_any(dev,
 246                                                 SYS_RES_MEMORY,
 247                                                 &sc->ndis_altmem_rid,
 248                                                 RF_ACTIVE);
 249                                         if (sc->ndis_res_altmem == NULL) {
 250                                                 device_printf(dev,
 251                                                     "couldn't map alt "
 252                                                     "memory\n");
 253                                                 error = ENXIO;
 254                                                 goto fail;
 255                                         }
 256                                 } else {
 257                                         sc->ndis_mem_rid = rle->rid;
 258                                         sc->ndis_res_mem =
 259                                             bus_alloc_resource_any(dev,
 260                                                 SYS_RES_MEMORY,
 261                                                 &sc->ndis_mem_rid,
 262                                                 RF_ACTIVE);
 263                                         if (sc->ndis_res_mem == NULL) {
 264                                                 device_printf(dev,
 265                                                     "couldn't map memory\n");
 266                                                 error = ENXIO;
 267                                                 goto fail;
 268                                         }
 269                                 }
 270                                 break;
 271                         case SYS_RES_IRQ:
 272                                 rid = rle->rid;
 273                                 sc->ndis_irq = bus_alloc_resource_any(dev,
 274                                     SYS_RES_IRQ, &rid,
 275                                     RF_SHAREABLE | RF_ACTIVE);
 276                                 if (sc->ndis_irq == NULL) {
 277                                         device_printf(dev,
 278                                             "couldn't map interrupt\n");
 279                                         error = ENXIO;
 280                                         goto fail;
 281                                 }
 282                                 break;
 283                         default:
 284                                 break;
 285                         }
 286                         sc->ndis_rescnt++;
 287                 }
 288         }
 289
 290         /*
 291          * If the BIOS did not set up an interrupt for this device,
 292          * the resource traversal code above will fail to set up
 293          * an IRQ resource. This is usually a bad thing, so try to
 294          * force the allocation of an interrupt here. If one was
 295          * not assigned to us by the BIOS, bus_alloc_resource()
 296          * should route one for us.
 297          */
 298         if (sc->ndis_irq == NULL) {
 299                 rid = 0;
 300                 sc->ndis_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 301                     &rid, RF_SHAREABLE | RF_ACTIVE);
 302                 if (sc->ndis_irq == NULL) {
 303                         device_printf(dev, "couldn't route interrupt\n");
 304                         error = ENXIO;
 305                         goto fail;
 306                 }
 307                 sc->ndis_rescnt++;
 308         }
 309
 310         /*
 311          * Allocate the parent bus DMA tag appropriate for PCI.
 312          */
 313 #define NDIS_NSEG_NEW 32
 314         error = bus_dma_tag_create(NULL,        /* parent */
 315                         1, 0,                   /* alignment, boundary */
 316                         BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
 317                         BUS_SPACE_MAXADDR,      /* highaddr */
 318                         NULL, NULL,             /* filter, filterarg */
 319                         DFLTPHYS, NDIS_NSEG_NEW,/* maxsize, nsegments */
 320                         BUS_SPACE_MAXSIZE_32BIT,/* maxsegsize */
 321                         BUS_DMA_ALLOCNOW,       /* flags */
 322                         &sc->ndis_parent_tag);
 323
 324         if (error)
 325                 goto fail;
 326
 327         sc->ndis_iftype = PCIBus;
 328
 329         /* Figure out exactly which device we matched. */
 330
 331         vid = pci_get_vendor(dev);
 332         did = pci_get_device(dev);
 333         subsys = pci_get_subdevice(dev);
 334         subsys = (subsys << 16) | pci_get_subvendor(dev);
 335
 336         t = db->windrv_devlist;
 337
 338         while(t->ndis_name != NULL) {
 339                 if (t->ndis_vid == vid && t->ndis_did == did) {
 340                         if (t->ndis_subsys == 0)
 341                                 defidx = devidx;
 342                         else if (t->ndis_subsys == subsys)
 343                                 break;
 344                 }
 345                 t++;
 346                 devidx++;
 347         }
 348
 349         if (t->ndis_name == NULL)
 350                 sc->ndis_devidx = defidx;
 351         else
 352                 sc->ndis_devidx = devidx;
 353
 354         error = ndis_attach(dev);
 355
 356 fail:
 357         return(error);
 358 }
 359
 360 static struct resource_list *
 361 ndis_get_resource_list(device_t dev, device_t child)
 362 {
 363         struct ndis_softc       *sc;
 364
 365         sc = device_get_softc(dev);
 366         return (BUS_GET_RESOURCE_LIST(device_get_parent(sc->ndis_dev), dev));
 367 }