sys/dev/siba/siba_bwn.c

   1 /*-
   2  * Copyright (c) 2009-2010 Weongyo Jeong <weongyo@freebsd.org>
   3  * 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  *    without modification.
  11  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  12  *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
  13  *    redistribution must be conditioned upon including a substantially
  14  *    similar Disclaimer requirement for further binary redistribution.
  15  *
  16  * NO WARRANTY
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  19  * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
  20  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
  21  * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
  22  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  25  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  27  * THE POSSIBILITY OF SUCH DAMAGES.
  28  */
  29
  30 #include <sys/cdefs.h>
  31 __FBSDID("$FreeBSD$");
  32
  33 /*
  34  * Sonics Silicon Backplane front-end for bwn(4).
  35  */
  36
  37 #include <sys/param.h>
  38 #include <sys/systm.h>
  39 #include <sys/malloc.h>
  40 #include <sys/module.h>
  41 #include <sys/kernel.h>
  42 #include <sys/lock.h>
  43 #include <sys/mutex.h>
  44 #include <sys/errno.h>
  45 #include <machine/bus.h>
  46 #include <machine/resource.h>
  47 #include <sys/bus.h>
  48 #include <sys/rman.h>
  49 #include <sys/socket.h>
  50
  51 #include <net/if.h>
  52 #include <net/if_media.h>
  53 #include <net/if_arp.h>
  54
  55 #include <dev/pci/pcivar.h>
  56 #include <dev/pci/pcireg.h>
  57
  58 #include <dev/siba/siba_ids.h>
  59 #include <dev/siba/sibareg.h>
  60 #include <dev/siba/sibavar.h>
  61
  62 /*
  63  * PCI glue.
  64  */
  65
  66 struct siba_bwn_softc {
  67         /* Child driver using MSI. */
  68         device_t                        ssc_msi_child;
  69         struct siba_softc               ssc_siba;
  70 };
  71
  72 #define BS_BAR                          0x10
  73 #define PCI_VENDOR_BROADCOM             0x14e4
  74 #define N(a)                            (sizeof(a) / sizeof(a[0]))
  75
  76 static const struct siba_dev {
  77         uint16_t        vid;
  78         uint16_t        did;
  79         const char      *desc;
  80 } siba_devices[] = {
  81         { PCI_VENDOR_BROADCOM, 0x4301, "Broadcom BCM4301 802.11b Wireless" },
  82         { PCI_VENDOR_BROADCOM, 0x4306, "Unknown" },
  83         { PCI_VENDOR_BROADCOM, 0x4307, "Broadcom BCM4307 802.11b Wireless" },
  84         { PCI_VENDOR_BROADCOM, 0x4311, "Broadcom BCM4311 802.11b/g Wireless" },
  85         { PCI_VENDOR_BROADCOM, 0x4312,
  86           "Broadcom BCM4312 802.11a/b/g Wireless" },
  87         { PCI_VENDOR_BROADCOM, 0x4315, "Broadcom BCM4312 802.11b/g Wireless" },
  88         { PCI_VENDOR_BROADCOM, 0x4318, "Broadcom BCM4318 802.11b/g Wireless" },
  89         { PCI_VENDOR_BROADCOM, 0x4319,
  90           "Broadcom BCM4318 802.11a/b/g Wireless" },
  91         { PCI_VENDOR_BROADCOM, 0x4320, "Broadcom BCM4306 802.11b/g Wireless" },
  92         { PCI_VENDOR_BROADCOM, 0x4321, "Broadcom BCM4306 802.11a Wireless" },
  93         { PCI_VENDOR_BROADCOM, 0x4324,
  94           "Broadcom BCM4309 802.11a/b/g Wireless" },
  95         { PCI_VENDOR_BROADCOM, 0x4325, "Broadcom BCM4306 802.11b/g Wireless" },
  96         { PCI_VENDOR_BROADCOM, 0x4328, "Broadcom BCM4321 802.11a/b/g/n Wireless" },
  97         { PCI_VENDOR_BROADCOM, 0x4329, "Unknown" },
  98         { PCI_VENDOR_BROADCOM, 0x432b, "Broadcom BCM4322 802.11a/b/g/n Wireless" }
  99 };
 100
 101 int             siba_core_attach(struct siba_softc *);
 102 int             siba_core_detach(struct siba_softc *);
 103 int             siba_core_suspend(struct siba_softc *);
 104 int             siba_core_resume(struct siba_softc *);
 105
 106 static int
 107 siba_bwn_probe(device_t dev)
 108 {
 109         int i;
 110         uint16_t did, vid;
 111
 112         did = pci_get_device(dev);
 113         vid = pci_get_vendor(dev);
 114
 115         for (i = 0; i < N(siba_devices); i++) {
 116                 if (siba_devices[i].did == did && siba_devices[i].vid == vid) {
 117                         device_set_desc(dev, siba_devices[i].desc);
 118                         return (BUS_PROBE_DEFAULT);
 119                 }
 120         }
 121         return (ENXIO);
 122 }
 123
 124 static int
 125 siba_bwn_attach(device_t dev)
 126 {
 127         struct siba_bwn_softc *ssc = device_get_softc(dev);
 128         struct siba_softc *siba = &ssc->ssc_siba;
 129
 130         siba->siba_dev = dev;
 131         siba->siba_type = SIBA_TYPE_PCI;
 132
 133         /*
 134          * Enable bus mastering.
 135          */
 136         pci_enable_busmaster(dev);
 137
 138         /*
 139          * Setup memory-mapping of PCI registers.
 140          */
 141         siba->siba_mem_rid = SIBA_PCIR_BAR;
 142         siba->siba_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
 143                 &siba->siba_mem_rid, RF_ACTIVE);
 144         if (siba->siba_mem_res == NULL) {
 145                 device_printf(dev, "cannot map register space\n");
 146                 return (ENXIO);
 147         }
 148         siba->siba_mem_bt = rman_get_bustag(siba->siba_mem_res);
 149         siba->siba_mem_bh = rman_get_bushandle(siba->siba_mem_res);
 150
 151         /* Get more PCI information */
 152         siba->siba_pci_did = pci_get_device(dev);
 153         siba->siba_pci_vid = pci_get_vendor(dev);
 154         siba->siba_pci_subvid = pci_get_subvendor(dev);
 155         siba->siba_pci_subdid = pci_get_subdevice(dev);
 156         siba->siba_pci_revid = pci_get_revid(dev);
 157
 158         return (siba_core_attach(siba));
 159 }
 160
 161 static int
 162 siba_bwn_detach(device_t dev)
 163 {
 164         struct siba_bwn_softc *ssc = device_get_softc(dev);
 165         struct siba_softc *siba = &ssc->ssc_siba;
 166
 167         /* check if device was removed */
 168         siba->siba_invalid = !bus_child_present(dev);
 169
 170         pci_disable_busmaster(dev);
 171         bus_generic_detach(dev);
 172         siba_core_detach(siba);
 173
 174         bus_release_resource(dev, SYS_RES_MEMORY, BS_BAR, siba->siba_mem_res);
 175
 176         return (0);
 177 }
 178
 179 static int
 180 siba_bwn_suspend(device_t dev)
 181 {
 182         struct siba_bwn_softc *ssc = device_get_softc(dev);
 183         struct siba_softc *siba = &ssc->ssc_siba;
 184         int error;
 185
 186         error = bus_generic_suspend(dev);
 187
 188         if (error != 0)
 189                 return (error);
 190
 191         return (siba_core_suspend(siba));
 192 }
 193
 194 static int
 195 siba_bwn_resume(device_t dev)
 196 {
 197         struct siba_bwn_softc *ssc = device_get_softc(dev);
 198         struct siba_softc *siba = &ssc->ssc_siba;
 199         int error;
 200
 201         error = siba_core_resume(siba);
 202         if (error != 0)
 203                 return (error);
 204
 205         bus_generic_resume(dev);
 206
 207         return (0);
 208 }
 209
 210 /* proxying to the parent */
 211 static struct resource *
 212 siba_bwn_alloc_resource(device_t dev, device_t child, int type, int *rid,
 213     rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
 214 {
 215
 216         return (BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
 217             type, rid, start, end, count, flags));
 218 }
 219
 220 /* proxying to the parent */
 221 static int
 222 siba_bwn_release_resource(device_t dev, device_t child, int type,
 223     int rid, struct resource *r)
 224 {
 225
 226         return (BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, type,
 227             rid, r));
 228 }
 229
 230 /* proxying to the parent */
 231 static int
 232 siba_bwn_setup_intr(device_t dev, device_t child, struct resource *irq,
 233     int flags, driver_filter_t *filter, driver_intr_t *intr, void *arg,
 234     void **cookiep)
 235 {
 236
 237         return (BUS_SETUP_INTR(device_get_parent(dev), dev, irq, flags,
 238             filter, intr, arg, cookiep));
 239 }
 240
 241 /* proxying to the parent */
 242 static int
 243 siba_bwn_teardown_intr(device_t dev, device_t child, struct resource *irq,
 244     void *cookie)
 245 {
 246
 247         return (BUS_TEARDOWN_INTR(device_get_parent(dev), dev, irq, cookie));
 248 }
 249
 250 static int
 251 siba_bwn_find_cap(device_t dev, device_t child, int capability,
 252     int *capreg)
 253 {
 254
 255         return (pci_find_cap(dev, capability, capreg));
 256 }
 257
 258 static int
 259 siba_bwn_find_extcap(device_t dev, device_t child, int capability,
 260     int *capreg)
 261 {
 262
 263         return (pci_find_extcap(dev, capability, capreg));
 264 }
 265
 266 static int
 267 siba_bwn_find_htcap(device_t dev, device_t child, int capability,
 268     int *capreg)
 269 {
 270
 271         return (pci_find_htcap(dev, capability, capreg));
 272 }
 273
 274 static int
 275 siba_bwn_alloc_msi(device_t dev, device_t child, int *count)
 276 {
 277         struct siba_bwn_softc *ssc;
 278         int error;
 279
 280         ssc = device_get_softc(dev);
 281         if (ssc->ssc_msi_child != NULL)
 282                 return (EBUSY);
 283         error = pci_alloc_msi(dev, count);
 284         if (error == 0)
 285                 ssc->ssc_msi_child = child;
 286         return (error);
 287 }
 288
 289 static int
 290 siba_bwn_release_msi(device_t dev, device_t child)
 291 {
 292         struct siba_bwn_softc *ssc;
 293         int error;
 294
 295         ssc = device_get_softc(dev);
 296         if (ssc->ssc_msi_child != child)
 297                 return (ENXIO);
 298         error = pci_release_msi(dev);
 299         if (error == 0)
 300                 ssc->ssc_msi_child = NULL;
 301         return (error);
 302 }
 303
 304 static int
 305 siba_bwn_msi_count(device_t dev, device_t child)
 306 {
 307
 308         return (pci_msi_count(dev));
 309 }
 310
 311 static int
 312 siba_bwn_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
 313 {
 314         struct siba_dev_softc *sd;
 315         struct siba_softc *siba;
 316
 317         sd = device_get_ivars(child);
 318         siba = sd->sd_bus;
 319
 320         switch (which) {
 321         case SIBA_IVAR_VENDOR:
 322                 *result = sd->sd_id.sd_vendor;
 323                 break;
 324         case SIBA_IVAR_DEVICE:
 325                 *result = sd->sd_id.sd_device;
 326                 break;
 327         case SIBA_IVAR_REVID:
 328                 *result = sd->sd_id.sd_rev;
 329                 break;
 330         case SIBA_IVAR_PCI_VENDOR:
 331                 *result = siba->siba_pci_vid;
 332                 break;
 333         case SIBA_IVAR_PCI_DEVICE:
 334                 *result = siba->siba_pci_did;
 335                 break;
 336         case SIBA_IVAR_PCI_SUBVENDOR:
 337                 *result = siba->siba_pci_subvid;
 338                 break;
 339         case SIBA_IVAR_PCI_SUBDEVICE:
 340                 *result = siba->siba_pci_subdid;
 341                 break;
 342         case SIBA_IVAR_PCI_REVID:
 343                 *result = siba->siba_pci_revid;
 344                 break;
 345         case SIBA_IVAR_CHIPID:
 346                 *result = siba->siba_chipid;
 347                 break;
 348         case SIBA_IVAR_CHIPREV:
 349                 *result = siba->siba_chiprev;
 350                 break;
 351         case SIBA_IVAR_CHIPPKG:
 352                 *result = siba->siba_chippkg;
 353                 break;
 354         case SIBA_IVAR_TYPE:
 355                 *result = siba->siba_type;
 356                 break;
 357         case SIBA_IVAR_CC_PMUFREQ:
 358                 *result = siba->siba_cc.scc_pmu.freq;
 359                 break;
 360         case SIBA_IVAR_CC_CAPS:
 361                 *result = siba->siba_cc.scc_caps;
 362                 break;
 363         case SIBA_IVAR_CC_POWERDELAY:
 364                 *result = siba->siba_cc.scc_powerup_delay;
 365                 break;
 366         case SIBA_IVAR_PCICORE_REVID:
 367                 *result = siba->siba_pci.spc_dev->sd_id.sd_rev;
 368                 break;
 369         default:
 370                 return (ENOENT);
 371         }
 372
 373         return (0);
 374 }
 375
 376 static device_method_t siba_bwn_methods[] = {
 377         /* Device interface */
 378         DEVMETHOD(device_probe,         siba_bwn_probe),
 379         DEVMETHOD(device_attach,        siba_bwn_attach),
 380         DEVMETHOD(device_detach,        siba_bwn_detach),
 381         DEVMETHOD(device_shutdown,      bus_generic_shutdown),
 382         DEVMETHOD(device_suspend,       siba_bwn_suspend),
 383         DEVMETHOD(device_resume,        siba_bwn_resume),
 384
 385         /* Bus interface */
 386         DEVMETHOD(bus_alloc_resource,   siba_bwn_alloc_resource),
 387         DEVMETHOD(bus_release_resource, siba_bwn_release_resource),
 388         DEVMETHOD(bus_read_ivar,        siba_bwn_read_ivar),
 389         DEVMETHOD(bus_setup_intr,       siba_bwn_setup_intr),
 390         DEVMETHOD(bus_teardown_intr,    siba_bwn_teardown_intr),
 391
 392         /* PCI interface */
 393         DEVMETHOD(pci_find_cap,         siba_bwn_find_cap),
 394         DEVMETHOD(pci_find_extcap,      siba_bwn_find_extcap),
 395         DEVMETHOD(pci_find_htcap,       siba_bwn_find_htcap),
 396         DEVMETHOD(pci_alloc_msi,        siba_bwn_alloc_msi),
 397         DEVMETHOD(pci_release_msi,      siba_bwn_release_msi),
 398         DEVMETHOD(pci_msi_count,        siba_bwn_msi_count),
 399
 400         DEVMETHOD_END
 401 };
 402 static driver_t siba_bwn_driver = {
 403         "siba_bwn",
 404         siba_bwn_methods,
 405         sizeof(struct siba_bwn_softc)
 406 };
 407 static devclass_t siba_bwn_devclass;
 408 DRIVER_MODULE(siba_bwn, pci, siba_bwn_driver, siba_bwn_devclass, 0, 0);
 409 MODULE_VERSION(siba_bwn, 1);