sys/dev/netif/ral/if_ral_pci.c

   1 /*      $FreeBSD: src/sys/dev/ral/if_ral_pci.c,v 1.10 2012/05/10 17:41:16 bschmidt Exp $        */
   2
   3 /*-
   4  * Copyright (c) 2005, 2006
   5  *      Damien Bergamini <damien.bergamini@free.fr>
   6  *
   7  * Permission to use, copy, modify, and distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  18  */
  19
  20
  21 /*
  22  * PCI/Cardbus front-end for the Ralink RT2560/RT2561/RT2561S/RT2661 driver.
  23  */
  24
  25 #include <sys/param.h>
  26 #include <sys/sysctl.h>
  27 #include <sys/sockio.h>
  28 #include <sys/mbuf.h>
  29 #include <sys/kernel.h>
  30 #include <sys/socket.h>
  31 #include <sys/systm.h>
  32 #include <sys/malloc.h>
  33 #include <sys/module.h>
  34 #include <sys/bus.h>
  35 #include <sys/endian.h>
  36 #include <sys/rman.h>
  37
  38 #include <net/bpf.h>
  39 #include <net/if.h>
  40 #include <net/if_arp.h>
  41 #include <net/ethernet.h>
  42 #include <net/if_dl.h>
  43 #include <net/if_media.h>
  44 #include <net/if_types.h>
  45
  46 #include <netproto/802_11/ieee80211_var.h>
  47 #include <netproto/802_11/ieee80211_radiotap.h>
  48 #include <netproto/802_11/ieee80211_amrr.h>
  49
  50 #include "pcidevs.h"
  51 #include <bus/pci/pcireg.h>
  52 #include <bus/pci/pcivar.h>
  53
  54 #include <dev/netif/ral/rt2560var.h>
  55 #include <dev/netif/ral/rt2661var.h>
  56 #include <dev/netif/ral/rt2860var.h>
  57
  58 MODULE_DEPEND(ral, pci, 1, 1, 1);
  59 MODULE_DEPEND(ral, firmware, 1, 1, 1);
  60 MODULE_DEPEND(ral, wlan, 1, 1, 1);
  61 MODULE_DEPEND(ral, wlan_amrr, 1, 1, 1);
  62
  63 struct ral_pci_ident {
  64         uint16_t        vendor;
  65         uint16_t        device;
  66         const char      *name;
  67 };
  68
  69 static const struct ral_pci_ident ral_pci_ids[] = {
  70         { PCI_VENDOR_AWT, PCI_PRODUCT_AWT_RT2890,
  71                 "Ralink Technology RT2890" },
  72         { PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_1,
  73                 "Ralink Technology RT2860" },
  74         { PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_2,
  75                 "Ralink Technology RT2860" },
  76         { PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_3,
  77                 "Ralink Technology RT2860" },
  78         { PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_4,
  79                 "Ralink Technology RT2860" },
  80         { PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_5,
  81                 "Ralink Technology RT2860" },
  82         { PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_6,
  83                 "Ralink Technology RT2860" },
  84         { PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT2860_7,
  85                 "Ralink Technology RT2860" },
  86         { PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT3591_1,
  87                 "Ralink Technology RT3591" },
  88         { PCI_VENDOR_EDIMAX, PCI_PRODUCT_EDIMAX_RT3591_2,
  89                 "Ralink Technology RT3591" },
  90         { PCI_VENDOR_MSI, PCI_PRODUCT_MSI_RT3090,
  91                 "Ralink Technology RT3090" },
  92         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2560,
  93                 "Ralink Technology RT2560" },
  94         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561S,
  95                 "Ralink Technology RT2561S" },
  96         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2561,
  97                 "Ralink Technology RT2561" },
  98         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2661,
  99                 "Ralink Technology RT2661" },
 100         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2760,
 101                 "Ralink Technology RT2760" },
 102         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2790,
 103                 "Ralink Technology RT2790" },
 104         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2860,
 105                 "Ralink Technology RT2860" },
 106         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT2890,
 107                 "Ralink Technology RT2890" },
 108         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT3060,
 109                 "Ralink Technology RT3060" },
 110         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT3062,
 111                 "Ralink Technology RT3062" },
 112         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT3090,
 113                 "Ralink Technology RT3090" },
 114         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT3091,
 115                 "Ralink Technology RT3091" },
 116         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT3092,
 117                 "Ralink Technology RT3092" },
 118         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT3390,
 119                 "Ralink Technology RT3390" },
 120         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT3562,
 121                 "Ralink Technology RT3562" },
 122         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT3592,
 123                 "Ralink Technology RT3592" },
 124         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT3593,
 125                 "Ralink Technology RT3593" },
 126         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT5390_1,
 127                 "Ralink Technology RT5390" },
 128         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT5390_2,
 129                 "Ralink Technology RT5390" },
 130         { PCI_VENDOR_RALINK, PCI_PRODUCT_RALINK_RT5390_3,
 131                 "Ralink Technology RT5390" },
 132
 133         { 0, 0, NULL }
 134 };
 135
 136 static struct ral_opns {
 137         int     (*attach)(device_t, int);
 138         int     (*detach)(void *);
 139         void    (*shutdown)(void *);
 140         void    (*suspend)(void *);
 141         void    (*resume)(void *);
 142         void    (*intr)(void *);
 143
 144 }  ral_rt2560_opns = {
 145         rt2560_attach,
 146         rt2560_detach,
 147         rt2560_stop,
 148         rt2560_stop,
 149         rt2560_resume,
 150         rt2560_intr
 151
 152 }, ral_rt2661_opns = {
 153         rt2661_attach,
 154         rt2661_detach,
 155         rt2661_shutdown,
 156         rt2661_suspend,
 157         rt2661_resume,
 158         rt2661_intr
 159 }, ral_rt2860_opns = {
 160         rt2860_attach,
 161         rt2860_detach,
 162         rt2860_shutdown,
 163         rt2860_suspend,
 164         rt2860_resume,
 165         rt2860_intr
 166 };
 167
 168 struct ral_pci_softc {
 169         union {
 170                 struct rt2560_softc sc_rt2560;
 171                 struct rt2661_softc sc_rt2661;
 172                 struct rt2860_softc sc_rt2860;
 173         } u;
 174
 175         struct ral_opns         *sc_opns;
 176         int                     irq_rid;
 177         int                     mem_rid;
 178         struct resource         *irq;
 179         struct resource         *mem;
 180         void                    *sc_ih;
 181 };
 182
 183 static int ral_pci_probe(device_t);
 184 static int ral_pci_attach(device_t);
 185 static int ral_pci_detach(device_t);
 186 static int ral_pci_shutdown(device_t);
 187 static int ral_pci_suspend(device_t);
 188 static int ral_pci_resume(device_t);
 189
 190 static device_method_t ral_pci_methods[] = {
 191         /* Device interface */
 192         DEVMETHOD(device_probe,         ral_pci_probe),
 193         DEVMETHOD(device_attach,        ral_pci_attach),
 194         DEVMETHOD(device_detach,        ral_pci_detach),
 195         DEVMETHOD(device_shutdown,      ral_pci_shutdown),
 196         DEVMETHOD(device_suspend,       ral_pci_suspend),
 197         DEVMETHOD(device_resume,        ral_pci_resume),
 198
 199         DEVMETHOD_END
 200 };
 201
 202 static driver_t ral_pci_driver = {
 203         "ral",
 204         ral_pci_methods,
 205         sizeof (struct ral_pci_softc)
 206 };
 207
 208 static devclass_t ral_devclass;
 209
 210 DRIVER_MODULE(ral, pci, ral_pci_driver, ral_devclass, NULL, NULL);
 211
 212 static int
 213 ral_pci_probe(device_t dev)
 214 {
 215         const struct ral_pci_ident *ident;
 216
 217         wlan_serialize_enter();
 218
 219         for (ident = ral_pci_ids; ident->name != NULL; ident++) {
 220                 if (pci_get_vendor(dev) == ident->vendor &&
 221                     pci_get_device(dev) == ident->device) {
 222                         device_set_desc(dev, ident->name);
 223                         wlan_serialize_exit();
 224                         return 0;
 225                 }
 226         }
 227         wlan_serialize_exit();
 228         return ENXIO;
 229 }
 230
 231 /* Base Address Register */
 232 #define RAL_PCI_BAR0    0x10
 233
 234 static int
 235 ral_pci_attach(device_t dev)
 236 {
 237         struct ral_pci_softc *psc = device_get_softc(dev);
 238         struct rt2560_softc *sc = &psc->u.sc_rt2560;
 239         int error;
 240
 241         wlan_serialize_enter();
 242         if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) {
 243                 device_printf(dev, "chip is in D%d power mode "
 244                     "-- setting to D0\n", pci_get_powerstate(dev));
 245                 pci_set_powerstate(dev, PCI_POWERSTATE_D0);
 246         }
 247
 248         /* enable bus-mastering */
 249         pci_enable_busmaster(dev);
 250
 251         switch (pci_get_device(dev)) {
 252         case PCI_PRODUCT_RALINK_RT2560:
 253                 psc->sc_opns = &ral_rt2560_opns;
 254                 break;
 255         case PCI_PRODUCT_RALINK_RT2561S:
 256         case PCI_PRODUCT_RALINK_RT2561:
 257         case PCI_PRODUCT_RALINK_RT2661:
 258                 psc->sc_opns = &ral_rt2661_opns;
 259                 break;
 260         default:
 261                 psc->sc_opns = &ral_rt2860_opns;
 262                 break;
 263         }
 264
 265         psc->mem_rid = RAL_PCI_BAR0;
 266         psc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &psc->mem_rid,
 267             RF_ACTIVE);
 268         if (psc->mem == NULL) {
 269                 device_printf(dev, "could not allocate memory resource\n");
 270                 wlan_serialize_exit();
 271                 return ENXIO;
 272         }
 273
 274         sc->sc_st = rman_get_bustag(psc->mem);
 275         sc->sc_sh = rman_get_bushandle(psc->mem);
 276         sc->sc_invalid = 1;
 277
 278         psc->irq_rid = 0;
 279         psc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &psc->irq_rid,
 280             RF_ACTIVE | RF_SHAREABLE);
 281         if (psc->irq == NULL) {
 282                 device_printf(dev, "could not allocate interrupt resource\n");
 283                 wlan_serialize_exit();
 284                 return ENXIO;
 285         }
 286
 287         error = (*psc->sc_opns->attach)(dev, pci_get_device(dev));
 288         if (error != 0) {
 289                 wlan_serialize_exit();
 290                 return error;
 291         }
 292
 293         /*
 294          * Hook our interrupt after all initialization is complete.
 295          */
 296         error = bus_setup_intr(dev, psc->irq, INTR_MPSAFE,
 297             psc->sc_opns->intr, psc, &psc->sc_ih, &wlan_global_serializer);
 298         if (error != 0) {
 299                 device_printf(dev, "could not set up interrupt\n");
 300                 wlan_serialize_exit();
 301                 return error;
 302         }
 303         sc->sc_invalid = 0;
 304
 305         wlan_serialize_exit();
 306         return 0;
 307 }
 308
 309 static int
 310 ral_pci_detach(device_t dev)
 311 {
 312         struct ral_pci_softc *psc = device_get_softc(dev);
 313         struct rt2560_softc *sc = &psc->u.sc_rt2560;
 314
 315         wlan_serialize_enter();
 316         /* check if device was removed */
 317         sc->sc_invalid = !bus_child_present(dev);
 318
 319         (*psc->sc_opns->detach)(psc);
 320
 321         bus_generic_detach(dev);
 322         bus_teardown_intr(dev, psc->irq, psc->sc_ih);
 323         bus_release_resource(dev, SYS_RES_IRQ, psc->irq_rid, psc->irq);
 324
 325         bus_release_resource(dev, SYS_RES_MEMORY, psc->mem_rid, psc->mem);
 326
 327         wlan_serialize_exit();
 328         return 0;
 329 }
 330
 331 static int
 332 ral_pci_shutdown(device_t dev)
 333 {
 334         struct ral_pci_softc *psc = device_get_softc(dev);
 335
 336         wlan_serialize_enter();
 337         (*psc->sc_opns->shutdown)(psc);
 338         wlan_serialize_exit();
 339
 340         return 0;
 341 }
 342
 343 static int
 344 ral_pci_suspend(device_t dev)
 345 {
 346         struct ral_pci_softc *psc = device_get_softc(dev);
 347
 348         wlan_serialize_enter();
 349         (*psc->sc_opns->suspend)(psc);
 350         wlan_serialize_exit();
 351
 352         return 0;
 353 }
 354
 355 static int
 356 ral_pci_resume(device_t dev)
 357 {
 358         struct ral_pci_softc *psc = device_get_softc(dev);
 359
 360         wlan_serialize_enter();
 361         (*psc->sc_opns->resume)(psc);
 362         wlan_serialize_exit();
 363
 364         return 0;
 365 }