sys/dev/netif/bwn/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: head/sys/dev/siba/siba_bwn.c 257241 2013-10-28 07:29:16Z glebius $");
  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, "Unknown" },
  97         { PCI_VENDOR_BROADCOM, 0x4329, "Unknown" },
  98         { PCI_VENDOR_BROADCOM, 0x432b, "Unknown" }
  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_shutdown(device_t dev)
 181 {
 182         device_t *devlistp;
 183         int devcnt, error = 0, i;
 184
 185         error = device_get_children(dev, &devlistp, &devcnt);
 186         if (error != 0)
 187                 return (error);
 188
 189         for (i = 0 ; i < devcnt ; i++)
 190                 device_shutdown(devlistp[i]);
 191         free(devlistp, M_TEMP);
 192         return (0);
 193 }
 194
 195 static int
 196 siba_bwn_suspend(device_t dev)
 197 {
 198         struct siba_bwn_softc *ssc = device_get_softc(dev);
 199         struct siba_softc *siba = &ssc->ssc_siba;
 200         device_t *devlistp;
 201         int devcnt, error = 0, i, j;
 202
 203         error = device_get_children(dev, &devlistp, &devcnt);
 204         if (error != 0)
 205                 return (error);
 206
 207         for (i = 0 ; i < devcnt ; i++) {
 208                 error = DEVICE_SUSPEND(devlistp[i]);
 209                 if (error) {
 210                         for (j = 0; j < i; j++)
 211                                 DEVICE_RESUME(devlistp[j]);
 212                         free(devlistp, M_TEMP);
 213                         return (error);
 214                 }
 215         }
 216         free(devlistp, M_TEMP);
 217         return (siba_core_suspend(siba));
 218 }
 219
 220 static int
 221 siba_bwn_resume(device_t dev)
 222 {
 223         struct siba_bwn_softc *ssc = device_get_softc(dev);
 224         struct siba_softc *siba = &ssc->ssc_siba;
 225         device_t *devlistp;
 226         int devcnt, error = 0, i;
 227
 228         error = siba_core_resume(siba);
 229         if (error != 0)
 230                 return (error);
 231
 232         error = device_get_children(dev, &devlistp, &devcnt);
 233         if (error != 0)
 234                 return (error);
 235
 236         for (i = 0 ; i < devcnt ; i++)
 237                 DEVICE_RESUME(devlistp[i]);
 238         free(devlistp, M_TEMP);
 239         return (0);
 240 }
 241
 242 /* proxying to the parent */
 243 static struct resource *
 244 siba_bwn_alloc_resource(device_t dev, device_t child, int type, int *rid,
 245     u_long start, u_long end, u_long count, u_int flags)
 246 {
 247
 248         return (BUS_ALLOC_RESOURCE(device_get_parent(dev), dev,
 249             type, rid, start, end, count, flags));
 250 }
 251
 252 /* proxying to the parent */
 253 static int
 254 siba_bwn_release_resource(device_t dev, device_t child, int type,
 255     int rid, struct resource *r)
 256 {
 257
 258         return (BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, type,
 259             rid, r));
 260 }
 261
 262 /* proxying to the parent */
 263 static int
 264 siba_bwn_setup_intr(device_t dev, device_t child, struct resource *irq,
 265     int flags, driver_filter_t *filter, driver_intr_t *intr, void *arg,
 266     void **cookiep)
 267 {
 268
 269         return (BUS_SETUP_INTR(device_get_parent(dev), dev, irq, flags,
 270             filter, intr, arg, cookiep));
 271 }
 272
 273 /* proxying to the parent */
 274 static int
 275 siba_bwn_teardown_intr(device_t dev, device_t child, struct resource *irq,
 276     void *cookie)
 277 {
 278
 279         return (BUS_TEARDOWN_INTR(device_get_parent(dev), dev, irq, cookie));
 280 }
 281
 282 static int
 283 siba_bwn_find_cap(device_t dev, device_t child, int capability,
 284     int *capreg)
 285 {
 286
 287         return (pci_find_cap(dev, capability, capreg));
 288 }
 289
 290 static int
 291 siba_bwn_find_extcap(device_t dev, device_t child, int capability,
 292     int *capreg)
 293 {
 294
 295         return (pci_find_extcap(dev, capability, capreg));
 296 }
 297
 298 static int
 299 siba_bwn_find_htcap(device_t dev, device_t child, int capability,
 300     int *capreg)
 301 {
 302
 303         return (pci_find_htcap(dev, capability, capreg));
 304 }
 305
 306 static int
 307 siba_bwn_alloc_msi(device_t dev, device_t child, int *count)
 308 {
 309         struct siba_bwn_softc *ssc;
 310         int error;
 311
 312         ssc = device_get_softc(dev);
 313         if (ssc->ssc_msi_child != NULL)
 314                 return (EBUSY);
 315         error = pci_alloc_msi(dev, count);
 316         if (error == 0)
 317                 ssc->ssc_msi_child = child;
 318         return (error);
 319 }
 320
 321 static int
 322 siba_bwn_release_msi(device_t dev, device_t child)
 323 {
 324         struct siba_bwn_softc *ssc;
 325         int error;
 326
 327         ssc = device_get_softc(dev);
 328         if (ssc->ssc_msi_child != child)
 329                 return (ENXIO);
 330         error = pci_release_msi(dev);
 331         if (error == 0)
 332                 ssc->ssc_msi_child = NULL;
 333         return (error);
 334 }
 335
 336 static int
 337 siba_bwn_msi_count(device_t dev, device_t child)
 338 {
 339
 340         return (pci_msi_count(dev));
 341 }
 342
 343 static int
 344 siba_bwn_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
 345 {
 346         struct siba_dev_softc *sd;
 347         struct siba_softc *siba;
 348
 349         sd = device_get_ivars(child);
 350         siba = sd->sd_bus;
 351
 352         switch (which) {
 353         case SIBA_IVAR_VENDOR:
 354                 *result = sd->sd_id.sd_vendor;
 355                 break;
 356         case SIBA_IVAR_DEVICE:
 357                 *result = sd->sd_id.sd_device;
 358                 break;
 359         case SIBA_IVAR_REVID:
 360                 *result = sd->sd_id.sd_rev;
 361                 break;
 362         case SIBA_IVAR_PCI_VENDOR:
 363                 *result = siba->siba_pci_vid;
 364                 break;
 365         case SIBA_IVAR_PCI_DEVICE:
 366                 *result = siba->siba_pci_did;
 367                 break;
 368         case SIBA_IVAR_PCI_SUBVENDOR:
 369                 *result = siba->siba_pci_subvid;
 370                 break;
 371         case SIBA_IVAR_PCI_SUBDEVICE:
 372                 *result = siba->siba_pci_subdid;
 373                 break;
 374         case SIBA_IVAR_PCI_REVID:
 375                 *result = siba->siba_pci_revid;
 376                 break;
 377         case SIBA_IVAR_CHIPID:
 378                 *result = siba->siba_chipid;
 379                 break;
 380         case SIBA_IVAR_CHIPREV:
 381                 *result = siba->siba_chiprev;
 382                 break;
 383         case SIBA_IVAR_CHIPPKG:
 384                 *result = siba->siba_chippkg;
 385                 break;
 386         case SIBA_IVAR_TYPE:
 387                 *result = siba->siba_type;
 388                 break;
 389         case SIBA_IVAR_CC_PMUFREQ:
 390                 *result = siba->siba_cc.scc_pmu.freq;
 391                 break;
 392         case SIBA_IVAR_CC_CAPS:
 393                 *result = siba->siba_cc.scc_caps;
 394                 break;
 395         case SIBA_IVAR_CC_POWERDELAY:
 396                 *result = siba->siba_cc.scc_powerup_delay;
 397                 break;
 398         case SIBA_IVAR_PCICORE_REVID:
 399                 *result = siba->siba_pci.spc_dev->sd_id.sd_rev;
 400                 break;
 401         default:
 402                 return (ENOENT);
 403         }
 404
 405         return (0);
 406 }
 407
 408 static device_method_t siba_bwn_methods[] = {
 409         /* Device interface */
 410         DEVMETHOD(device_probe,         siba_bwn_probe),
 411         DEVMETHOD(device_attach,        siba_bwn_attach),
 412         DEVMETHOD(device_detach,        siba_bwn_detach),
 413         DEVMETHOD(device_shutdown,      siba_bwn_shutdown),
 414         DEVMETHOD(device_suspend,       siba_bwn_suspend),
 415         DEVMETHOD(device_resume,        siba_bwn_resume),
 416
 417         /* Bus interface */
 418         DEVMETHOD(bus_alloc_resource,   siba_bwn_alloc_resource),
 419         DEVMETHOD(bus_release_resource, siba_bwn_release_resource),
 420         DEVMETHOD(bus_read_ivar,        siba_bwn_read_ivar),
 421         DEVMETHOD(bus_setup_intr,       siba_bwn_setup_intr),
 422         DEVMETHOD(bus_teardown_intr,    siba_bwn_teardown_intr),
 423
 424         /* PCI interface */
 425         DEVMETHOD(pci_find_cap,         siba_bwn_find_cap),
 426         DEVMETHOD(pci_find_extcap,      siba_bwn_find_extcap),
 427         DEVMETHOD(pci_find_htcap,       siba_bwn_find_htcap),
 428         DEVMETHOD(pci_alloc_msi,        siba_bwn_alloc_msi),
 429         DEVMETHOD(pci_release_msi,      siba_bwn_release_msi),
 430         DEVMETHOD(pci_msi_count,        siba_bwn_msi_count),
 431
 432         DEVMETHOD_END
 433 };
 434 static driver_t siba_bwn_driver = {
 435         "siba_bwn",
 436         siba_bwn_methods,
 437         sizeof(struct siba_bwn_softc)
 438 };
 439 static devclass_t siba_bwn_devclass;
 440 DRIVER_MODULE(siba_bwn, pci, siba_bwn_driver, siba_bwn_devclass, 0, 0);
 441 MODULE_VERSION(siba_bwn, 1);