drivers/staging/brcm80211/brcmfmac/dhd_linux.c

   1 /*
   2  * Copyright (c) 2010 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #ifdef CONFIG_WIFI_CONTROL_FUNC
  18 #include <linux/platform_device.h>
  19 #endif
  20 #include <linux/init.h>
  21 #include <linux/kernel.h>
  22 #include <linux/kthread.h>
  23 #include <linux/slab.h>
  24 #include <linux/skbuff.h>
  25 #include <linux/netdevice.h>
  26 #include <linux/etherdevice.h>
  27 #include <linux/mmc/sdio_func.h>
  28 #include <linux/random.h>
  29 #include <linux/spinlock.h>
  30 #include <linux/ethtool.h>
  31 #include <linux/fcntl.h>
  32 #include <linux/fs.h>
  33 #include <linux/uaccess.h>
  34 #include <bcmdefs.h>
  35 #include <osl.h>
  36 #include <bcmutils.h>
  37 #include <bcmendian.h>
  38
  39 #include <proto/ethernet.h>
  40 #include <dngl_stats.h>
  41 #include <dhd.h>
  42 #include <dhd_bus.h>
  43 #include <dhd_proto.h>
  44 #include <dhd_dbg.h>
  45
  46 #include <wl_cfg80211.h>
  47
  48 #define EPI_VERSION_STR         "4.218.248.5"
  49
  50 #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
  51 #include <linux/wifi_tiwlan.h>
  52
  53 struct semaphore wifi_control_sem;
  54
  55 struct dhd_bus *g_bus;
  56
  57 static struct wifi_platform_data *wifi_control_data;
  58 static struct resource *wifi_irqres;
  59
  60 int wifi_get_irq_number(unsigned long *irq_flags_ptr)
  61 {
  62         if (wifi_irqres) {
  63                 *irq_flags_ptr = wifi_irqres->flags & IRQF_TRIGGER_MASK;
  64                 return (int)wifi_irqres->start;
  65         }
  66 #ifdef CUSTOM_OOB_GPIO_NUM
  67         return CUSTOM_OOB_GPIO_NUM;
  68 #else
  69         return -1;
  70 #endif
  71 }
  72
  73 int wifi_set_carddetect(int on)
  74 {
  75         printk(KERN_ERR "%s = %d\n", __func__, on);
  76         if (wifi_control_data && wifi_control_data->set_carddetect)
  77                 wifi_control_data->set_carddetect(on);
  78         return 0;
  79 }
  80
  81 int wifi_set_power(int on, unsigned long msec)
  82 {
  83         printk(KERN_ERR "%s = %d\n", __func__, on);
  84         if (wifi_control_data && wifi_control_data->set_power)
  85                 wifi_control_data->set_power(on);
  86         if (msec)
  87                 mdelay(msec);
  88         return 0;
  89 }
  90
  91 int wifi_set_reset(int on, unsigned long msec)
  92 {
  93         printk(KERN_ERR "%s = %d\n", __func__, on);
  94         if (wifi_control_data && wifi_control_data->set_reset)
  95                 wifi_control_data->set_reset(on);
  96         if (msec)
  97                 mdelay(msec);
  98         return 0;
  99 }
 100
 101 static int wifi_probe(struct platform_device *pdev)
 102 {
 103         struct wifi_platform_data *wifi_ctrl =
 104             (struct wifi_platform_data *)(pdev->dev.platform_data);
 105
 106         printk(KERN_ERR "## %s\n", __func__);
 107         wifi_irqres =
 108             platform_get_resource_byname(pdev, IORESOURCE_IRQ,
 109                                          "bcm4329_wlan_irq");
 110         wifi_control_data = wifi_ctrl;
 111
 112         wifi_set_power(1, 0);   /* Power On */
 113         wifi_set_carddetect(1); /* CardDetect (0->1) */
 114
 115         up(&wifi_control_sem);
 116         return 0;
 117 }
 118
 119 static int wifi_remove(struct platform_device *pdev)
 120 {
 121         struct wifi_platform_data *wifi_ctrl =
 122             (struct wifi_platform_data *)(pdev->dev.platform_data);
 123
 124         printk(KERN_ERR "## %s\n", __func__);
 125         wifi_control_data = wifi_ctrl;
 126
 127         wifi_set_carddetect(0); /* CardDetect (1->0) */
 128         wifi_set_power(0, 0);   /* Power Off */
 129
 130         up(&wifi_control_sem);
 131         return 0;
 132 }
 133
 134 static int wifi_suspend(struct platform_device *pdev, pm_message_t state)
 135 {
 136         DHD_TRACE(("##> %s\n", __func__));
 137         return 0;
 138 }
 139
 140 static int wifi_resume(struct platform_device *pdev)
 141 {
 142         DHD_TRACE(("##> %s\n", __func__));
 143         return 0;
 144 }
 145
 146 static struct platform_driver wifi_device = {
 147         .probe = wifi_probe,
 148         .remove = wifi_remove,
 149         .suspend = wifi_suspend,
 150         .resume = wifi_resume,
 151         .driver = {
 152                    .name = "bcm4329_wlan",
 153                    }
 154 };
 155
 156 int wifi_add_dev(void)
 157 {
 158         DHD_TRACE(("## Calling platform_driver_register\n"));
 159         return platform_driver_register(&wifi_device);
 160 }
 161
 162 void wifi_del_dev(void)
 163 {
 164         DHD_TRACE(("## Unregister platform_driver_register\n"));
 165         platform_driver_unregister(&wifi_device);
 166 }
 167 #endif  /* defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
 168
 169 #if defined(CONFIG_PM_SLEEP)
 170 #include <linux/suspend.h>
 171 volatile bool dhd_mmc_suspend = false;
 172 DECLARE_WAIT_QUEUE_HEAD(dhd_dpc_wait);
 173 #endif  /*  defined(CONFIG_PM_SLEEP) */
 174
 175 #if defined(OOB_INTR_ONLY)
 176 extern void dhd_enable_oob_intr(struct dhd_bus *bus, bool enable);
 177 #endif  /* defined(OOB_INTR_ONLY) */
 178
 179 MODULE_AUTHOR("Broadcom Corporation");
 180 MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac driver.");
 181 MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac cards");
 182 MODULE_LICENSE("Dual BSD/GPL");
 183
 184 #define DRV_MODULE_NAME "brcmfmac"
 185
 186 /* Linux wireless extension support */
 187 #if defined(CONFIG_WIRELESS_EXT)
 188 #include <wl_iw.h>
 189 extern wl_iw_extra_params_t g_wl_iw_params;
 190 #endif          /* defined(CONFIG_WIRELESS_EXT) */
 191
 192 #if defined(CONFIG_HAS_EARLYSUSPEND)
 193 #include <linux/earlysuspend.h>
 194 extern int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf,
 195                             uint len);
 196 #endif          /* defined(CONFIG_HAS_EARLYSUSPEND) */
 197
 198 #ifdef PKT_FILTER_SUPPORT
 199 extern void dhd_pktfilter_offload_set(dhd_pub_t *dhd, char *arg);
 200 extern void dhd_pktfilter_offload_enable(dhd_pub_t *dhd, char *arg, int enable,
 201                                          int master_mode);
 202 #endif
 203
 204 /* Interface control information */
 205 typedef struct dhd_if {
 206         struct dhd_info *info;  /* back pointer to dhd_info */
 207         /* OS/stack specifics */
 208         struct net_device *net;
 209         struct net_device_stats stats;
 210         int idx;                /* iface idx in dongle */
 211         int state;              /* interface state */
 212         uint subunit;           /* subunit */
 213         u8 mac_addr[ETHER_ADDR_LEN];    /* assigned MAC address */
 214         bool attached;          /* Delayed attachment when unset */
 215         bool txflowcontrol;     /* Per interface flow control indicator */
 216         char name[IFNAMSIZ];    /* linux interface name */
 217 } dhd_if_t;
 218
 219 /* Local private structure (extension of pub) */
 220 typedef struct dhd_info {
 221 #if defined(CONFIG_WIRELESS_EXT)
 222         wl_iw_t iw;             /* wireless extensions state (must be first) */
 223 #endif                          /* defined(CONFIG_WIRELESS_EXT) */
 224
 225         dhd_pub_t pub;
 226
 227         /* OS/stack specifics */
 228         dhd_if_t *iflist[DHD_MAX_IFS];
 229
 230         struct semaphore proto_sem;
 231         wait_queue_head_t ioctl_resp_wait;
 232         struct timer_list timer;
 233         bool wd_timer_valid;
 234         struct tasklet_struct tasklet;
 235         spinlock_t sdlock;
 236         spinlock_t txqlock;
 237         /* Thread based operation */
 238         bool threads_only;
 239         struct semaphore sdsem;
 240         struct task_struct *watchdog_tsk;
 241         struct semaphore watchdog_sem;
 242         struct task_struct *dpc_tsk;
 243         struct semaphore dpc_sem;
 244
 245         /* Thread to issue ioctl for multicast */
 246         struct task_struct *sysioc_tsk;
 247         struct semaphore sysioc_sem;
 248         bool set_multicast;
 249         bool set_macaddress;
 250         struct ether_addr macvalue;
 251         wait_queue_head_t ctrl_wait;
 252         atomic_t pend_8021x_cnt;
 253
 254 #ifdef CONFIG_HAS_EARLYSUSPEND
 255         struct early_suspend early_suspend;
 256 #endif                          /* CONFIG_HAS_EARLYSUSPEND */
 257 } dhd_info_t;
 258
 259 /* Definitions to provide path to the firmware and nvram
 260  * example nvram_path[MOD_PARAM_PATHLEN]="/projects/wlan/nvram.txt"
 261  */
 262 char firmware_path[MOD_PARAM_PATHLEN];
 263 char nvram_path[MOD_PARAM_PATHLEN];
 264
 265 /* load firmware and/or nvram values from the filesystem */
 266 module_param_string(firmware_path, firmware_path, MOD_PARAM_PATHLEN, 0);
 267 module_param_string(nvram_path, nvram_path, MOD_PARAM_PATHLEN, 0);
 268
 269 /* Error bits */
 270 module_param(dhd_msg_level, int, 0);
 271
 272 /* Spawn a thread for system ioctls (set mac, set mcast) */
 273 uint dhd_sysioc = true;
 274 module_param(dhd_sysioc, uint, 0);
 275
 276 /* Watchdog interval */
 277 uint dhd_watchdog_ms = 10;
 278 module_param(dhd_watchdog_ms, uint, 0);
 279
 280 #ifdef DHD_DEBUG
 281 /* Console poll interval */
 282 uint dhd_console_ms;
 283 module_param(dhd_console_ms, uint, 0);
 284 #endif                          /* DHD_DEBUG */
 285
 286 /* ARP offload agent mode : Enable ARP Host Auto-Reply
 287 and ARP Peer Auto-Reply */
 288 uint dhd_arp_mode = 0xb;
 289 module_param(dhd_arp_mode, uint, 0);
 290
 291 /* ARP offload enable */
 292 uint dhd_arp_enable = true;
 293 module_param(dhd_arp_enable, uint, 0);
 294
 295 /* Global Pkt filter enable control */
 296 uint dhd_pkt_filter_enable = true;
 297 module_param(dhd_pkt_filter_enable, uint, 0);
 298
 299 /*  Pkt filter init setup */
 300 uint dhd_pkt_filter_init;
 301 module_param(dhd_pkt_filter_init, uint, 0);
 302
 303 /* Pkt filter mode control */
 304 uint dhd_master_mode = true;
 305 module_param(dhd_master_mode, uint, 1);
 306
 307 /* Watchdog thread priority, -1 to use kernel timer */
 308 int dhd_watchdog_prio = 97;
 309 module_param(dhd_watchdog_prio, int, 0);
 310
 311 /* DPC thread priority, -1 to use tasklet */
 312 int dhd_dpc_prio = 98;
 313 module_param(dhd_dpc_prio, int, 0);
 314
 315 /* DPC thread priority, -1 to use tasklet */
 316 extern int dhd_dongle_memsize;
 317 module_param(dhd_dongle_memsize, int, 0);
 318
 319 /* Contorl fw roaming */
 320 #ifdef CUSTOMER_HW2
 321 uint dhd_roam;
 322 #else
 323 uint dhd_roam = 1;
 324 #endif
 325
 326 /* Control radio state */
 327 uint dhd_radio_up = 1;
 328
 329 /* Network inteface name */
 330 char iface_name[IFNAMSIZ];
 331 module_param_string(iface_name, iface_name, IFNAMSIZ, 0);
 332
 333 /* The following are specific to the SDIO dongle */
 334
 335 /* IOCTL response timeout */
 336 int dhd_ioctl_timeout_msec = IOCTL_RESP_TIMEOUT;
 337
 338 /* Idle timeout for backplane clock */
 339 int dhd_idletime = DHD_IDLETIME_TICKS;
 340 module_param(dhd_idletime, int, 0);
 341
 342 /* Use polling */
 343 uint dhd_poll = false;
 344 module_param(dhd_poll, uint, 0);
 345
 346 /* Use cfg80211 */
 347 uint dhd_cfg80211 = true;
 348 module_param(dhd_cfg80211, uint, 0);
 349
 350 /* Use interrupts */
 351 uint dhd_intr = true;
 352 module_param(dhd_intr, uint, 0);
 353
 354 /* SDIO Drive Strength (in milliamps) */
 355 uint dhd_sdiod_drive_strength = 6;
 356 module_param(dhd_sdiod_drive_strength, uint, 0);
 357
 358 /* Tx/Rx bounds */
 359 extern uint dhd_txbound;
 360 extern uint dhd_rxbound;
 361 module_param(dhd_txbound, uint, 0);
 362 module_param(dhd_rxbound, uint, 0);
 363
 364 /* Deferred transmits */
 365 extern uint dhd_deferred_tx;
 366 module_param(dhd_deferred_tx, uint, 0);
 367
 368 #ifdef SDTEST
 369 /* Echo packet generator (pkts/s) */
 370 uint dhd_pktgen;
 371 module_param(dhd_pktgen, uint, 0);
 372
 373 /* Echo packet len (0 => sawtooth, max 2040) */
 374 uint dhd_pktgen_len;
 375 module_param(dhd_pktgen_len, uint, 0);
 376 #endif
 377
 378 #define FAVORITE_WIFI_CP        (!!dhd_cfg80211)
 379 #define IS_CFG80211_FAVORITE() FAVORITE_WIFI_CP
 380 #define DBG_CFG80211_GET() ((dhd_cfg80211 & WL_DBG_MASK) >> 1)
 381 #define NO_FW_REQ() (dhd_cfg80211 & 0x80)
 382
 383 /* Version string to report */
 384 #ifdef DHD_DEBUG
 385 #define DHD_COMPILED "\nCompiled in " SRCBASE
 386 #else
 387 #define DHD_COMPILED
 388 #endif
 389
 390 static char dhd_version[] = "Dongle Host Driver, version " EPI_VERSION_STR
 391 #ifdef DHD_DEBUG
 392 "\nCompiled in " " on " __DATE__ " at " __TIME__
 393 #endif
 394 ;
 395
 396 #if defined(CONFIG_WIRELESS_EXT)
 397 struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev);
 398 #endif                          /* defined(CONFIG_WIRELESS_EXT) */
 399
 400 static void dhd_dpc(unsigned long data);
 401 /* forward decl */
 402 extern int dhd_wait_pend8021x(struct net_device *dev);
 403
 404 #ifdef TOE
 405 #ifndef BDC
 406 #error TOE requires BDC
 407 #endif                          /* !BDC */
 408 static int dhd_toe_get(dhd_info_t *dhd, int idx, u32 *toe_ol);
 409 static int dhd_toe_set(dhd_info_t *dhd, int idx, u32 toe_ol);
 410 #endif                          /* TOE */
 411
 412 static int dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
 413                              wl_event_msg_t *event_ptr, void **data_ptr);
 414
 415 #if defined(CONFIG_PM_SLEEP)
 416 static int dhd_sleep_pm_callback(struct notifier_block *nfb,
 417                                  unsigned long action, void *ignored)
 418 {
 419         switch (action) {
 420         case PM_HIBERNATION_PREPARE:
 421         case PM_SUSPEND_PREPARE:
 422                 dhd_mmc_suspend = true;
 423                 return NOTIFY_OK;
 424         case PM_POST_HIBERNATION:
 425         case PM_POST_SUSPEND:
 426                 dhd_mmc_suspend = false;
 427                 return NOTIFY_OK;
 428         }
 429         return 0;
 430 }
 431
 432 static struct notifier_block dhd_sleep_pm_notifier = {
 433         .notifier_call = dhd_sleep_pm_callback,
 434         .priority = 0
 435 };
 436
 437 extern int register_pm_notifier(struct notifier_block *nb);
 438 extern int unregister_pm_notifier(struct notifier_block *nb);
 439 #endif  /* defined(CONFIG_PM_SLEEP) */
 440         /* && defined(DHD_GPL) */
 441 static void dhd_set_packet_filter(int value, dhd_pub_t *dhd)
 442 {
 443 #ifdef PKT_FILTER_SUPPORT
 444         DHD_TRACE(("%s: %d\n", __func__, value));
 445         /* 1 - Enable packet filter, only allow unicast packet to send up */
 446         /* 0 - Disable packet filter */
 447         if (dhd_pkt_filter_enable) {
 448                 int i;
 449
 450                 for (i = 0; i < dhd->pktfilter_count; i++) {
 451                         dhd_pktfilter_offload_set(dhd, dhd->pktfilter[i]);
 452                         dhd_pktfilter_offload_enable(dhd, dhd->pktfilter[i],
 453                                                      value, dhd_master_mode);
 454                 }
 455         }
 456 #endif
 457 }
 458
 459 #if defined(CONFIG_HAS_EARLYSUSPEND)
 460 static int dhd_set_suspend(int value, dhd_pub_t *dhd)
 461 {
 462         int power_mode = PM_MAX;
 463         /* wl_pkt_filter_enable_t       enable_parm; */
 464         char iovbuf[32];
 465         int bcn_li_dtim = 3;
 466 #ifdef CUSTOMER_HW2
 467         uint roamvar = 1;
 468 #endif                          /* CUSTOMER_HW2 */
 469
 470         DHD_TRACE(("%s: enter, value = %d in_suspend=%d\n",
 471                    __func__, value, dhd->in_suspend));
 472
 473         if (dhd && dhd->up) {
 474                 if (value && dhd->in_suspend) {
 475
 476                         /* Kernel suspended */
 477                         DHD_TRACE(("%s: force extra Suspend setting\n",
 478                                    __func__));
 479
 480                         dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM,
 481                                          (char *)&power_mode,
 482                                          sizeof(power_mode));
 483
 484                         /* Enable packet filter, only allow unicast
 485                                  packet to send up */
 486                         dhd_set_packet_filter(1, dhd);
 487
 488                         /* if dtim skip setup as default force it
 489                          * to wake each thrid dtim
 490                          * for better power saving.
 491                          * Note that side effect is chance to miss BC/MC
 492                          * packet
 493                          */
 494                         if ((dhd->dtim_skip == 0) || (dhd->dtim_skip == 1))
 495                                 bcn_li_dtim = 3;
 496                         else
 497                                 bcn_li_dtim = dhd->dtim_skip;
 498                         bcm_mkiovar("bcn_li_dtim", (char *)&bcn_li_dtim,
 499                                     4, iovbuf, sizeof(iovbuf));
 500                         dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
 501                                          sizeof(iovbuf));
 502 #ifdef CUSTOMER_HW2
 503                         /* Disable build-in roaming to allowed \
 504                          * supplicant to take of romaing
 505                          */
 506                         bcm_mkiovar("roam_off", (char *)&roamvar, 4,
 507                                     iovbuf, sizeof(iovbuf));
 508                         dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
 509                                          sizeof(iovbuf));
 510 #endif                          /* CUSTOMER_HW2 */
 511                 } else {
 512
 513                         /* Kernel resumed  */
 514                         DHD_TRACE(("%s: Remove extra suspend setting\n",
 515                                    __func__));
 516
 517                         power_mode = PM_FAST;
 518                         dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM,
 519                                          (char *)&power_mode,
 520                                          sizeof(power_mode));
 521
 522                         /* disable pkt filter */
 523                         dhd_set_packet_filter(0, dhd);
 524
 525                         /* restore pre-suspend setting for dtim_skip */
 526                         bcm_mkiovar("bcn_li_dtim", (char *)&dhd->dtim_skip,
 527                                     4, iovbuf, sizeof(iovbuf));
 528
 529                         dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
 530                                          sizeof(iovbuf));
 531 #ifdef CUSTOMER_HW2
 532                         roamvar = 0;
 533                         bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf,
 534                                     sizeof(iovbuf));
 535                         dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
 536                                          sizeof(iovbuf));
 537 #endif                          /* CUSTOMER_HW2 */
 538                 }
 539         }
 540
 541         return 0;
 542 }
 543
 544 static void dhd_suspend_resume_helper(struct dhd_info *dhd, int val)
 545 {
 546         dhd_pub_t *dhdp = &dhd->pub;
 547
 548         dhd_os_proto_block(dhdp);
 549         /* Set flag when early suspend was called */
 550         dhdp->in_suspend = val;
 551         if (!dhdp->suspend_disable_flag)
 552                 dhd_set_suspend(val, dhdp);
 553         dhd_os_proto_unblock(dhdp);
 554 }
 555
 556 static void dhd_early_suspend(struct early_suspend *h)
 557 {
 558         struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
 559
 560         DHD_TRACE(("%s: enter\n", __func__));
 561
 562         if (dhd)
 563                 dhd_suspend_resume_helper(dhd, 1);
 564
 565 }
 566
 567 static void dhd_late_resume(struct early_suspend *h)
 568 {
 569         struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
 570
 571         DHD_TRACE(("%s: enter\n", __func__));
 572
 573         if (dhd)
 574                 dhd_suspend_resume_helper(dhd, 0);
 575 }
 576 #endif                          /* defined(CONFIG_HAS_EARLYSUSPEND) */
 577
 578 /*
 579  * Generalized timeout mechanism.  Uses spin sleep with exponential
 580  * back-off until
 581  * the sleep time reaches one jiffy, then switches over to task delay.  Usage:
 582  *
 583  *      dhd_timeout_start(&tmo, usec);
 584  *      while (!dhd_timeout_expired(&tmo))
 585  *              if (poll_something())
 586  *                      break;
 587  *      if (dhd_timeout_expired(&tmo))
 588  *              fatal();
 589  */
 590
 591 void dhd_timeout_start(dhd_timeout_t *tmo, uint usec)
 592 {
 593         tmo->limit = usec;
 594         tmo->increment = 0;
 595         tmo->elapsed = 0;
 596         tmo->tick = 1000000 / HZ;
 597 }
 598
 599 int dhd_timeout_expired(dhd_timeout_t *tmo)
 600 {
 601         /* Does nothing the first call */
 602         if (tmo->increment == 0) {
 603                 tmo->increment = 1;
 604                 return 0;
 605         }
 606
 607         if (tmo->elapsed >= tmo->limit)
 608                 return 1;
 609
 610         /* Add the delay that's about to take place */
 611         tmo->elapsed += tmo->increment;
 612
 613         if (tmo->increment < tmo->tick) {
 614                 udelay(tmo->increment);
 615                 tmo->increment *= 2;
 616                 if (tmo->increment > tmo->tick)
 617                         tmo->increment = tmo->tick;
 618         } else {
 619                 wait_queue_head_t delay_wait;
 620                 DECLARE_WAITQUEUE(wait, current);
 621                 int pending;
 622                 init_waitqueue_head(&delay_wait);
 623                 add_wait_queue(&delay_wait, &wait);
 624                 set_current_state(TASK_INTERRUPTIBLE);
 625                 schedule_timeout(1);
 626                 pending = signal_pending(current);
 627                 remove_wait_queue(&delay_wait, &wait);
 628                 set_current_state(TASK_RUNNING);
 629                 if (pending)
 630                         return 1;       /* Interrupted */
 631         }
 632
 633         return 0;
 634 }
 635
 636 static int dhd_net2idx(dhd_info_t *dhd, struct net_device *net)
 637 {
 638         int i = 0;
 639
 640         ASSERT(dhd);
 641         while (i < DHD_MAX_IFS) {
 642                 if (dhd->iflist[i] && (dhd->iflist[i]->net == net))
 643                         return i;
 644                 i++;
 645         }
 646
 647         return DHD_BAD_IF;
 648 }
 649
 650 int dhd_ifname2idx(dhd_info_t *dhd, char *name)
 651 {
 652         int i = DHD_MAX_IFS;
 653
 654         ASSERT(dhd);
 655
 656         if (name == NULL || *name == '\0')
 657                 return 0;
 658
 659         while (--i > 0)
 660                 if (dhd->iflist[i]
 661                     && !strncmp(dhd->iflist[i]->name, name, IFNAMSIZ))
 662                         break;
 663
 664         DHD_TRACE(("%s: return idx %d for \"%s\"\n", __func__, i, name));
 665
 666         return i;               /* default - the primary interface */
 667 }
 668
 669 char *dhd_ifname(dhd_pub_t *dhdp, int ifidx)
 670 {
 671         dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
 672
 673         ASSERT(dhd);
 674
 675         if (ifidx < 0 || ifidx >= DHD_MAX_IFS) {
 676                 DHD_ERROR(("%s: ifidx %d out of range\n", __func__, ifidx));
 677                 return "<if_bad>";
 678         }
 679
 680         if (dhd->iflist[ifidx] == NULL) {
 681                 DHD_ERROR(("%s: null i/f %d\n", __func__, ifidx));
 682                 return "<if_null>";
 683         }
 684
 685         if (dhd->iflist[ifidx]->net)
 686                 return dhd->iflist[ifidx]->net->name;
 687
 688         return "<if_none>";
 689 }
 690
 691 static void _dhd_set_multicast_list(dhd_info_t *dhd, int ifidx)
 692 {
 693         struct net_device *dev;
 694         struct netdev_hw_addr *ha;
 695         u32 allmulti, cnt;
 696
 697         wl_ioctl_t ioc;
 698         char *buf, *bufp;
 699         uint buflen;
 700         int ret;
 701
 702         ASSERT(dhd && dhd->iflist[ifidx]);
 703         dev = dhd->iflist[ifidx]->net;
 704         cnt = netdev_mc_count(dev);
 705
 706         /* Determine initial value of allmulti flag */
 707         allmulti = (dev->flags & IFF_ALLMULTI) ? true : false;
 708
 709         /* Send down the multicast list first. */
 710
 711         buflen = sizeof("mcast_list") + sizeof(cnt) + (cnt * ETHER_ADDR_LEN);
 712         bufp = buf = kmalloc(buflen, GFP_ATOMIC);
 713         if (!bufp) {
 714                 DHD_ERROR(("%s: out of memory for mcast_list, cnt %d\n",
 715                            dhd_ifname(&dhd->pub, ifidx), cnt));
 716                 return;
 717         }
 718
 719         strcpy(bufp, "mcast_list");
 720         bufp += strlen("mcast_list") + 1;
 721
 722         cnt = htol32(cnt);
 723         memcpy(bufp, &cnt, sizeof(cnt));
 724         bufp += sizeof(cnt);
 725
 726         netdev_for_each_mc_addr(ha, dev) {
 727                 if (!cnt)
 728                         break;
 729                 memcpy(bufp, ha->addr, ETHER_ADDR_LEN);
 730                 bufp += ETHER_ADDR_LEN;
 731                 cnt--;
 732         }
 733
 734         memset(&ioc, 0, sizeof(ioc));
 735         ioc.cmd = WLC_SET_VAR;
 736         ioc.buf = buf;
 737         ioc.len = buflen;
 738         ioc.set = true;
 739
 740         ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
 741         if (ret < 0) {
 742                 DHD_ERROR(("%s: set mcast_list failed, cnt %d\n",
 743                            dhd_ifname(&dhd->pub, ifidx), cnt));
 744                 allmulti = cnt ? true : allmulti;
 745         }
 746
 747         kfree(buf);
 748
 749         /* Now send the allmulti setting.  This is based on the setting in the
 750          * net_device flags, but might be modified above to be turned on if we
 751          * were trying to set some addresses and dongle rejected it...
 752          */
 753
 754         buflen = sizeof("allmulti") + sizeof(allmulti);
 755         buf = kmalloc(buflen, GFP_ATOMIC);
 756         if (!buf) {
 757                 DHD_ERROR(("%s: out of memory for allmulti\n",
 758                            dhd_ifname(&dhd->pub, ifidx)));
 759                 return;
 760         }
 761         allmulti = htol32(allmulti);
 762
 763         if (!bcm_mkiovar
 764             ("allmulti", (void *)&allmulti, sizeof(allmulti), buf, buflen)) {
 765                 DHD_ERROR(("%s: mkiovar failed for allmulti, datalen %d "
 766                         "buflen %u\n", dhd_ifname(&dhd->pub, ifidx),
 767                         (int)sizeof(allmulti), buflen));
 768                 kfree(buf);
 769                 return;
 770         }
 771
 772         memset(&ioc, 0, sizeof(ioc));
 773         ioc.cmd = WLC_SET_VAR;
 774         ioc.buf = buf;
 775         ioc.len = buflen;
 776         ioc.set = true;
 777
 778         ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
 779         if (ret < 0) {
 780                 DHD_ERROR(("%s: set allmulti %d failed\n",
 781                            dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
 782         }
 783
 784         kfree(buf);
 785
 786         /* Finally, pick up the PROMISC flag as well, like the NIC
 787                  driver does */
 788
 789         allmulti = (dev->flags & IFF_PROMISC) ? true : false;
 790         allmulti = htol32(allmulti);
 791
 792         memset(&ioc, 0, sizeof(ioc));
 793         ioc.cmd = WLC_SET_PROMISC;
 794         ioc.buf = &allmulti;
 795         ioc.len = sizeof(allmulti);
 796         ioc.set = true;
 797
 798         ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
 799         if (ret < 0) {
 800                 DHD_ERROR(("%s: set promisc %d failed\n",
 801                            dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
 802         }
 803 }
 804
 805 static int
 806 _dhd_set_mac_address(dhd_info_t *dhd, int ifidx, struct ether_addr *addr)
 807 {
 808         char buf[32];
 809         wl_ioctl_t ioc;
 810         int ret;
 811
 812         DHD_TRACE(("%s enter\n", __func__));
 813         if (!bcm_mkiovar
 814             ("cur_etheraddr", (char *)addr, ETHER_ADDR_LEN, buf, 32)) {
 815                 DHD_ERROR(("%s: mkiovar failed for cur_etheraddr\n",
 816                            dhd_ifname(&dhd->pub, ifidx)));
 817                 return -1;
 818         }
 819         memset(&ioc, 0, sizeof(ioc));
 820         ioc.cmd = WLC_SET_VAR;
 821         ioc.buf = buf;
 822         ioc.len = 32;
 823         ioc.set = true;
 824
 825         ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
 826         if (ret < 0) {
 827                 DHD_ERROR(("%s: set cur_etheraddr failed\n",
 828                            dhd_ifname(&dhd->pub, ifidx)));
 829         } else {
 830                 memcpy(dhd->iflist[ifidx]->net->dev_addr, addr, ETHER_ADDR_LEN);
 831         }
 832
 833         return ret;
 834 }
 835
 836 #ifdef SOFTAP
 837 extern struct net_device *ap_net_dev;
 838 #endif
 839
 840 static void dhd_op_if(dhd_if_t *ifp)
 841 {
 842         dhd_info_t *dhd;
 843         int ret = 0, err = 0;
 844
 845         ASSERT(ifp && ifp->info && ifp->idx);   /* Virtual interfaces only */
 846
 847         dhd = ifp->info;
 848
 849         DHD_TRACE(("%s: idx %d, state %d\n", __func__, ifp->idx, ifp->state));
 850
 851         switch (ifp->state) {
 852         case WLC_E_IF_ADD:
 853                 /*
 854                  * Delete the existing interface before overwriting it
 855                  * in case we missed the WLC_E_IF_DEL event.
 856                  */
 857                 if (ifp->net != NULL) {
 858                         DHD_ERROR(("%s: ERROR: netdev:%s already exists, "
 859                         "try free & unregister\n",
 860                         __func__, ifp->net->name));
 861                         netif_stop_queue(ifp->net);
 862                         unregister_netdev(ifp->net);
 863                         free_netdev(ifp->net);
 864                 }
 865                 /* Allocate etherdev, including space for private structure */
 866                 ifp->net = alloc_etherdev(sizeof(dhd));
 867                 if (!ifp->net) {
 868                         DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
 869                         ret = -ENOMEM;
 870                 }
 871                 if (ret == 0) {
 872                         strcpy(ifp->net->name, ifp->name);
 873                         memcpy(netdev_priv(ifp->net), &dhd, sizeof(dhd));
 874                         err = dhd_net_attach(&dhd->pub, ifp->idx);
 875                         if (err != 0) {
 876                                 DHD_ERROR(("%s: dhd_net_attach failed, "
 877                                         "err %d\n",
 878                                         __func__, err));
 879                                 ret = -EOPNOTSUPP;
 880                         } else {
 881 #ifdef SOFTAP
 882                                 /* semaphore that the soft AP CODE
 883                                          waits on */
 884                                 extern struct semaphore ap_eth_sema;
 885
 886                                 /* save ptr to wl0.1 netdev for use
 887                                          in wl_iw.c  */
 888                                 ap_net_dev = ifp->net;
 889                                 /* signal to the SOFTAP 'sleeper' thread,
 890                                          wl0.1 is ready */
 891                                 up(&ap_eth_sema);
 892 #endif
 893                                 DHD_TRACE(("\n ==== pid:%x, net_device for "
 894                                         "if:%s created ===\n\n",
 895                                         current->pid, ifp->net->name));
 896                                 ifp->state = 0;
 897                         }
 898                 }
 899                 break;
 900         case WLC_E_IF_DEL:
 901                 if (ifp->net != NULL) {
 902                         DHD_TRACE(("\n%s: got 'WLC_E_IF_DEL' state\n",
 903                                    __func__));
 904                         netif_stop_queue(ifp->net);
 905                         unregister_netdev(ifp->net);
 906                         ret = DHD_DEL_IF;       /* Make sure the free_netdev()
 907                                                          is called */
 908                 }
 909                 break;
 910         default:
 911                 DHD_ERROR(("%s: bad op %d\n", __func__, ifp->state));
 912                 ASSERT(!ifp->state);
 913                 break;
 914         }
 915
 916         if (ret < 0) {
 917                 if (ifp->net)
 918                         free_netdev(ifp->net);
 919
 920                 dhd->iflist[ifp->idx] = NULL;
 921                 kfree(ifp);
 922 #ifdef SOFTAP
 923                 if (ifp->net == ap_net_dev)
 924                         ap_net_dev = NULL;      /*  NULL  SOFTAP global
 925                                                          wl0.1 as well */
 926 #endif                          /*  SOFTAP */
 927         }
 928 }
 929
 930 static int _dhd_sysioc_thread(void *data)
 931 {
 932         dhd_info_t *dhd = (dhd_info_t *) data;
 933         int i;
 934 #ifdef SOFTAP
 935         bool in_ap = false;
 936 #endif
 937
 938         allow_signal(SIGTERM);
 939
 940         while (down_interruptible(&dhd->sysioc_sem) == 0) {
 941                 if (kthread_should_stop())
 942                         break;
 943                 for (i = 0; i < DHD_MAX_IFS; i++) {
 944                         if (dhd->iflist[i]) {
 945 #ifdef SOFTAP
 946                                 in_ap = (ap_net_dev != NULL);
 947 #endif                          /* SOFTAP */
 948                                 if (dhd->iflist[i]->state)
 949                                         dhd_op_if(dhd->iflist[i]);
 950 #ifdef SOFTAP
 951                                 if (dhd->iflist[i] == NULL) {
 952                                         DHD_TRACE(("\n\n %s: interface %d "
 953                                                 "removed!\n", __func__, i));
 954                                         continue;
 955                                 }
 956
 957                                 if (in_ap && dhd->set_macaddress) {
 958                                         DHD_TRACE(("attempt to set MAC for %s "
 959                                                 "in AP Mode," "blocked. \n",
 960                                                 dhd->iflist[i]->net->name));
 961                                         dhd->set_macaddress = false;
 962                                         continue;
 963                                 }
 964
 965                                 if (in_ap && dhd->set_multicast) {
 966                                         DHD_TRACE(("attempt to set MULTICAST list for %s" "in AP Mode, blocked. \n",
 967                                                 dhd->iflist[i]->net->name));
 968                                         dhd->set_multicast = false;
 969                                         continue;
 970                                 }
 971 #endif                          /* SOFTAP */
 972                                 if (dhd->set_multicast) {
 973                                         dhd->set_multicast = false;
 974                                         _dhd_set_multicast_list(dhd, i);
 975                                 }
 976                                 if (dhd->set_macaddress) {
 977                                         dhd->set_macaddress = false;
 978                                         _dhd_set_mac_address(dhd, i,
 979                                                              &dhd->macvalue);
 980                                 }
 981                         }
 982                 }
 983         }
 984         return 0;
 985 }
 986
 987 static int dhd_set_mac_address(struct net_device *dev, void *addr)
 988 {
 989         int ret = 0;
 990
 991         dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
 992         struct sockaddr *sa = (struct sockaddr *)addr;
 993         int ifidx;
 994
 995         ifidx = dhd_net2idx(dhd, dev);
 996         if (ifidx == DHD_BAD_IF)
 997                 return -1;
 998
 999         ASSERT(dhd->sysioc_tsk);
1000         memcpy(&dhd->macvalue, sa->sa_data, ETHER_ADDR_LEN);
1001         dhd->set_macaddress = true;
1002         up(&dhd->sysioc_sem);
1003
1004         return ret;
1005 }
1006
1007 static void dhd_set_multicast_list(struct net_device *dev)
1008 {
1009         dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
1010         int ifidx;
1011
1012         ifidx = dhd_net2idx(dhd, dev);
1013         if (ifidx == DHD_BAD_IF)
1014                 return;
1015
1016         ASSERT(dhd->sysioc_tsk);
1017         dhd->set_multicast = true;
1018         up(&dhd->sysioc_sem);
1019 }
1020
1021 int dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, struct sk_buff *pktbuf)
1022 {
1023         int ret;
1024         dhd_info_t *dhd = (dhd_info_t *) (dhdp->info);
1025
1026         /* Reject if down */
1027         if (!dhdp->up || (dhdp->busstate == DHD_BUS_DOWN))
1028                 return -ENODEV;
1029
1030         /* Update multicast statistic */
1031         if (pktbuf->len >= ETHER_ADDR_LEN) {
1032                 u8 *pktdata = (u8 *) (pktbuf->data);
1033                 struct ether_header *eh = (struct ether_header *)pktdata;
1034
1035                 if (ETHER_ISMULTI(eh->ether_dhost))
1036                         dhdp->tx_multicast++;
1037                 if (ntoh16(eh->ether_type) == ETHER_TYPE_802_1X)
1038                         atomic_inc(&dhd->pend_8021x_cnt);
1039         }
1040
1041         /* If the protocol uses a data header, apply it */
1042         dhd_prot_hdrpush(dhdp, ifidx, pktbuf);
1043
1044         /* Use bus module to send data frame */
1045 #ifdef BCMDBUS
1046         ret = dbus_send_pkt(dhdp->dbus, pktbuf, NULL /* pktinfo */);
1047 #else
1048         WAKE_LOCK_TIMEOUT(dhdp, WAKE_LOCK_TMOUT, 25);
1049         ret = dhd_bus_txdata(dhdp->bus, pktbuf);
1050 #endif                          /* BCMDBUS */
1051
1052         return ret;
1053 }
1054
1055 static inline void *
1056 osl_pkt_frmnative(struct osl_info *osh, struct sk_buff *skb)
1057 {
1058         struct sk_buff *nskb;
1059
1060         for (nskb = skb; nskb; nskb = nskb->next)
1061                 osh->pktalloced++;
1062
1063         return (void *)skb;
1064 }
1065 #define PKTFRMNATIVE(osh, skb)  \
1066         osl_pkt_frmnative((osh), (struct sk_buff *)(skb))
1067
1068 static inline struct sk_buff *
1069 osl_pkt_tonative(struct osl_info *osh, void *pkt)
1070 {
1071         struct sk_buff *nskb;
1072
1073         for (nskb = (struct sk_buff *)pkt; nskb; nskb = nskb->next)
1074                 osh->pktalloced--;
1075
1076         return (struct sk_buff *)pkt;
1077 }
1078 #define PKTTONATIVE(osh, pkt)   \
1079         osl_pkt_tonative((osh), (pkt))
1080
1081 static int dhd_start_xmit(struct sk_buff *skb, struct net_device *net)
1082 {
1083         int ret;
1084         void *pktbuf;
1085         dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1086         int ifidx;
1087
1088         DHD_TRACE(("%s: Enter\n", __func__));
1089
1090         /* Reject if down */
1091         if (!dhd->pub.up || (dhd->pub.busstate == DHD_BUS_DOWN)) {
1092                 DHD_ERROR(("%s: xmit rejected pub.up=%d busstate=%d\n",
1093                            __func__, dhd->pub.up, dhd->pub.busstate));
1094                 netif_stop_queue(net);
1095                 return -ENODEV;
1096         }
1097
1098         ifidx = dhd_net2idx(dhd, net);
1099         if (ifidx == DHD_BAD_IF) {
1100                 DHD_ERROR(("%s: bad ifidx %d\n", __func__, ifidx));
1101                 netif_stop_queue(net);
1102                 return -ENODEV;
1103         }
1104
1105         /* Make sure there's enough room for any header */
1106         if (skb_headroom(skb) < dhd->pub.hdrlen) {
1107                 struct sk_buff *skb2;
1108
1109                 DHD_INFO(("%s: insufficient headroom\n",
1110                           dhd_ifname(&dhd->pub, ifidx)));
1111                 dhd->pub.tx_realloc++;
1112                 skb2 = skb_realloc_headroom(skb, dhd->pub.hdrlen);
1113                 dev_kfree_skb(skb);
1114                 skb = skb2;
1115                 if (skb == NULL) {
1116                         DHD_ERROR(("%s: skb_realloc_headroom failed\n",
1117                                    dhd_ifname(&dhd->pub, ifidx)));
1118                         ret = -ENOMEM;
1119                         goto done;
1120                 }
1121         }
1122
1123         /* Convert to packet */
1124         pktbuf = PKTFRMNATIVE(dhd->pub.osh, skb);
1125         if (!pktbuf) {
1126                 DHD_ERROR(("%s: PKTFRMNATIVE failed\n",
1127                            dhd_ifname(&dhd->pub, ifidx)));
1128                 dev_kfree_skb_any(skb);
1129                 ret = -ENOMEM;
1130                 goto done;
1131         }
1132
1133         ret = dhd_sendpkt(&dhd->pub, ifidx, pktbuf);
1134
1135 done:
1136         if (ret)
1137                 dhd->pub.dstats.tx_dropped++;
1138         else
1139                 dhd->pub.tx_packets++;
1140
1141         /* Return ok: we always eat the packet */
1142         return 0;
1143 }
1144
1145 void dhd_txflowcontrol(dhd_pub_t *dhdp, int ifidx, bool state)
1146 {
1147         struct net_device *net;
1148         dhd_info_t *dhd = dhdp->info;
1149
1150         DHD_TRACE(("%s: Enter\n", __func__));
1151
1152         dhdp->txoff = state;
1153         ASSERT(dhd && dhd->iflist[ifidx]);
1154         net = dhd->iflist[ifidx]->net;
1155         if (state == ON)
1156                 netif_stop_queue(net);
1157         else
1158                 netif_wake_queue(net);
1159 }
1160
1161 void dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, struct sk_buff *pktbuf,
1162                   int numpkt)
1163 {
1164         dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
1165         struct sk_buff *skb;
1166         unsigned char *eth;
1167         uint len;
1168         void *data;
1169         struct sk_buff *pnext, *save_pktbuf;
1170         int i;
1171         dhd_if_t *ifp;
1172         wl_event_msg_t event;
1173
1174         DHD_TRACE(("%s: Enter\n", __func__));
1175
1176         save_pktbuf = pktbuf;
1177
1178         for (i = 0; pktbuf && i < numpkt; i++, pktbuf = pnext) {
1179
1180                 pnext = pktbuf->next;
1181                 pktbuf->next = NULL;
1182
1183                 skb = PKTTONATIVE(dhdp->osh, pktbuf);
1184
1185                 /* Get the protocol, maintain skb around eth_type_trans()
1186                  * The main reason for this hack is for the limitation of
1187                  * Linux 2.4 where 'eth_type_trans' uses the
1188                  * 'net->hard_header_len'
1189                  * to perform skb_pull inside vs ETH_HLEN. Since to avoid
1190                  * coping of the packet coming from the network stack to add
1191                  * BDC, Hardware header etc, during network interface
1192                  * registration
1193                  * we set the 'net->hard_header_len' to ETH_HLEN + extra space
1194                  * required
1195                  * for BDC, Hardware header etc. and not just the ETH_HLEN
1196                  */
1197                 eth = skb->data;
1198                 len = skb->len;
1199
1200                 ifp = dhd->iflist[ifidx];
1201                 if (ifp == NULL)
1202                         ifp = dhd->iflist[0];
1203
1204                 ASSERT(ifp);
1205                 skb->dev = ifp->net;
1206                 skb->protocol = eth_type_trans(skb, skb->dev);
1207
1208                 if (skb->pkt_type == PACKET_MULTICAST)
1209                         dhd->pub.rx_multicast++;
1210
1211                 skb->data = eth;
1212                 skb->len = len;
1213
1214                 /* Strip header, count, deliver upward */
1215                 skb_pull(skb, ETH_HLEN);
1216
1217                 /* Process special event packets and then discard them */
1218                 if (ntoh16(skb->protocol) == ETHER_TYPE_BRCM)
1219                         dhd_wl_host_event(dhd, &ifidx,
1220                                           skb_mac_header(skb),
1221                                           &event, &data);
1222
1223                 ASSERT(ifidx < DHD_MAX_IFS && dhd->iflist[ifidx]);
1224                 if (dhd->iflist[ifidx] && !dhd->iflist[ifidx]->state)
1225                         ifp = dhd->iflist[ifidx];
1226
1227                 if (ifp->net)
1228                         ifp->net->last_rx = jiffies;
1229
1230                 dhdp->dstats.rx_bytes += skb->len;
1231                 dhdp->rx_packets++;     /* Local count */
1232
1233                 if (in_interrupt()) {
1234                         netif_rx(skb);
1235                 } else {
1236                         /* If the receive is not processed inside an ISR,
1237                          * the softirqd must be woken explicitly to service
1238                          * the NET_RX_SOFTIRQ.  In 2.6 kernels, this is handled
1239                          * by netif_rx_ni(), but in earlier kernels, we need
1240                          * to do it manually.
1241                          */
1242                         netif_rx_ni(skb);
1243                 }
1244         }
1245 }
1246
1247 void dhd_event(struct dhd_info *dhd, char *evpkt, int evlen, int ifidx)
1248 {
1249         /* Linux version has nothing to do */
1250         return;
1251 }
1252
1253 void dhd_txcomplete(dhd_pub_t *dhdp, struct sk_buff *txp, bool success)
1254 {
1255         uint ifidx;
1256         dhd_info_t *dhd = (dhd_info_t *) (dhdp->info);
1257         struct ether_header *eh;
1258         u16 type;
1259
1260         dhd_prot_hdrpull(dhdp, &ifidx, txp);
1261
1262         eh = (struct ether_header *)(txp->data);
1263         type = ntoh16(eh->ether_type);
1264
1265         if (type == ETHER_TYPE_802_1X)
1266                 atomic_dec(&dhd->pend_8021x_cnt);
1267
1268 }
1269
1270 static struct net_device_stats *dhd_get_stats(struct net_device *net)
1271 {
1272         dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1273         dhd_if_t *ifp;
1274         int ifidx;
1275
1276         DHD_TRACE(("%s: Enter\n", __func__));
1277
1278         ifidx = dhd_net2idx(dhd, net);
1279         if (ifidx == DHD_BAD_IF)
1280                 return NULL;
1281
1282         ifp = dhd->iflist[ifidx];
1283         ASSERT(dhd && ifp);
1284
1285         if (dhd->pub.up) {
1286                 /* Use the protocol to get dongle stats */
1287                 dhd_prot_dstats(&dhd->pub);
1288         }
1289
1290         /* Copy dongle stats to net device stats */
1291         ifp->stats.rx_packets = dhd->pub.dstats.rx_packets;
1292         ifp->stats.tx_packets = dhd->pub.dstats.tx_packets;
1293         ifp->stats.rx_bytes = dhd->pub.dstats.rx_bytes;
1294         ifp->stats.tx_bytes = dhd->pub.dstats.tx_bytes;
1295         ifp->stats.rx_errors = dhd->pub.dstats.rx_errors;
1296         ifp->stats.tx_errors = dhd->pub.dstats.tx_errors;
1297         ifp->stats.rx_dropped = dhd->pub.dstats.rx_dropped;
1298         ifp->stats.tx_dropped = dhd->pub.dstats.tx_dropped;
1299         ifp->stats.multicast = dhd->pub.dstats.multicast;
1300
1301         return &ifp->stats;
1302 }
1303
1304 static int dhd_watchdog_thread(void *data)
1305 {
1306         dhd_info_t *dhd = (dhd_info_t *) data;
1307         WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_WATCHDOG, "dhd_watchdog_thread");
1308
1309         /* This thread doesn't need any user-level access,
1310          * so get rid of all our resources
1311          */
1312 #ifdef DHD_SCHED
1313         if (dhd_watchdog_prio > 0) {
1314                 struct sched_param param;
1315                 param.sched_priority = (dhd_watchdog_prio < MAX_RT_PRIO) ?
1316                     dhd_watchdog_prio : (MAX_RT_PRIO - 1);
1317                 setScheduler(current, SCHED_FIFO, &param);
1318         }
1319 #endif                          /* DHD_SCHED */
1320
1321         allow_signal(SIGTERM);
1322         /* Run until signal received */
1323         while (1) {
1324                 if (kthread_should_stop())
1325                         break;
1326                 if (down_interruptible(&dhd->watchdog_sem) == 0) {
1327                         if (dhd->pub.dongle_reset == false) {
1328                                 WAKE_LOCK(&dhd->pub, WAKE_LOCK_WATCHDOG);
1329                                 /* Call the bus module watchdog */
1330                                 dhd_bus_watchdog(&dhd->pub);
1331                                 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_WATCHDOG);
1332                         }
1333                         /* Count the tick for reference */
1334                         dhd->pub.tickcnt++;
1335                 } else
1336                         break;
1337         }
1338
1339         WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_WATCHDOG);
1340         return 0;
1341 }
1342
1343 static void dhd_watchdog(unsigned long data)
1344 {
1345         dhd_info_t *dhd = (dhd_info_t *) data;
1346
1347         if (dhd->watchdog_tsk) {
1348                 up(&dhd->watchdog_sem);
1349
1350                 /* Reschedule the watchdog */
1351                 if (dhd->wd_timer_valid) {
1352                         mod_timer(&dhd->timer,
1353                                   jiffies + dhd_watchdog_ms * HZ / 1000);
1354                 }
1355                 return;
1356         }
1357
1358         /* Call the bus module watchdog */
1359         dhd_bus_watchdog(&dhd->pub);
1360
1361         /* Count the tick for reference */
1362         dhd->pub.tickcnt++;
1363
1364         /* Reschedule the watchdog */
1365         if (dhd->wd_timer_valid)
1366                 mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000);
1367 }
1368
1369 static int dhd_dpc_thread(void *data)
1370 {
1371         dhd_info_t *dhd = (dhd_info_t *) data;
1372
1373         WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_DPC, "dhd_dpc_thread");
1374         /* This thread doesn't need any user-level access,
1375          * so get rid of all our resources
1376          */
1377 #ifdef DHD_SCHED
1378         if (dhd_dpc_prio > 0) {
1379                 struct sched_param param;
1380                 param.sched_priority =
1381                     (dhd_dpc_prio <
1382                      MAX_RT_PRIO) ? dhd_dpc_prio : (MAX_RT_PRIO - 1);
1383                 setScheduler(current, SCHED_FIFO, &param);
1384         }
1385 #endif                          /* DHD_SCHED */
1386
1387         allow_signal(SIGTERM);
1388         /* Run until signal received */
1389         while (1) {
1390                 if (kthread_should_stop())
1391                         break;
1392                 if (down_interruptible(&dhd->dpc_sem) == 0) {
1393                         /* Call bus dpc unless it indicated down
1394                                  (then clean stop) */
1395                         if (dhd->pub.busstate != DHD_BUS_DOWN) {
1396                                 WAKE_LOCK(&dhd->pub, WAKE_LOCK_DPC);
1397                                 if (dhd_bus_dpc(dhd->pub.bus)) {
1398                                         up(&dhd->dpc_sem);
1399                                         WAKE_LOCK_TIMEOUT(&dhd->pub,
1400                                                           WAKE_LOCK_TMOUT, 25);
1401                                 }
1402                                 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_DPC);
1403                         } else {
1404                                 dhd_bus_stop(dhd->pub.bus, true);
1405                         }
1406                 } else
1407                         break;
1408         }
1409
1410         WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_DPC);
1411         return 0;
1412 }
1413
1414 static void dhd_dpc(unsigned long data)
1415 {
1416         dhd_info_t *dhd;
1417
1418         dhd = (dhd_info_t *) data;
1419
1420         /* Call bus dpc unless it indicated down (then clean stop) */
1421         if (dhd->pub.busstate != DHD_BUS_DOWN) {
1422                 if (dhd_bus_dpc(dhd->pub.bus))
1423                         tasklet_schedule(&dhd->tasklet);
1424         } else {
1425                 dhd_bus_stop(dhd->pub.bus, true);
1426         }
1427 }
1428
1429 void dhd_sched_dpc(dhd_pub_t *dhdp)
1430 {
1431         dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
1432
1433         if (dhd->dpc_tsk) {
1434                 up(&dhd->dpc_sem);
1435                 return;
1436         }
1437
1438         tasklet_schedule(&dhd->tasklet);
1439 }
1440
1441 #ifdef TOE
1442 /* Retrieve current toe component enables, which are kept
1443          as a bitmap in toe_ol iovar */
1444 static int dhd_toe_get(dhd_info_t *dhd, int ifidx, u32 *toe_ol)
1445 {
1446         wl_ioctl_t ioc;
1447         char buf[32];
1448         int ret;
1449
1450         memset(&ioc, 0, sizeof(ioc));
1451
1452         ioc.cmd = WLC_GET_VAR;
1453         ioc.buf = buf;
1454         ioc.len = (uint) sizeof(buf);
1455         ioc.set = false;
1456
1457         strcpy(buf, "toe_ol");
1458         ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1459         if (ret < 0) {
1460                 /* Check for older dongle image that doesn't support toe_ol */
1461                 if (ret == -EIO) {
1462                         DHD_ERROR(("%s: toe not supported by device\n",
1463                                    dhd_ifname(&dhd->pub, ifidx)));
1464                         return -EOPNOTSUPP;
1465                 }
1466
1467                 DHD_INFO(("%s: could not get toe_ol: ret=%d\n",
1468                           dhd_ifname(&dhd->pub, ifidx), ret));
1469                 return ret;
1470         }
1471
1472         memcpy(toe_ol, buf, sizeof(u32));
1473         return 0;
1474 }
1475
1476 /* Set current toe component enables in toe_ol iovar,
1477          and set toe global enable iovar */
1478 static int dhd_toe_set(dhd_info_t *dhd, int ifidx, u32 toe_ol)
1479 {
1480         wl_ioctl_t ioc;
1481         char buf[32];
1482         int toe, ret;
1483
1484         memset(&ioc, 0, sizeof(ioc));
1485
1486         ioc.cmd = WLC_SET_VAR;
1487         ioc.buf = buf;
1488         ioc.len = (uint) sizeof(buf);
1489         ioc.set = true;
1490
1491         /* Set toe_ol as requested */
1492
1493         strcpy(buf, "toe_ol");
1494         memcpy(&buf[sizeof("toe_ol")], &toe_ol, sizeof(u32));
1495
1496         ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1497         if (ret < 0) {
1498                 DHD_ERROR(("%s: could not set toe_ol: ret=%d\n",
1499                            dhd_ifname(&dhd->pub, ifidx), ret));
1500                 return ret;
1501         }
1502
1503         /* Enable toe globally only if any components are enabled. */
1504
1505         toe = (toe_ol != 0);
1506
1507         strcpy(buf, "toe");
1508         memcpy(&buf[sizeof("toe")], &toe, sizeof(u32));
1509
1510         ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1511         if (ret < 0) {
1512                 DHD_ERROR(("%s: could not set toe: ret=%d\n",
1513                            dhd_ifname(&dhd->pub, ifidx), ret));
1514                 return ret;
1515         }
1516
1517         return 0;
1518 }
1519 #endif                          /* TOE */
1520
1521 static void dhd_ethtool_get_drvinfo(struct net_device *net,
1522                                     struct ethtool_drvinfo *info)
1523 {
1524         dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1525
1526         sprintf(info->driver, DRV_MODULE_NAME);
1527         sprintf(info->version, "%lu", dhd->pub.drv_version);
1528         sprintf(info->fw_version, "%s", wl_cfg80211_get_fwname());
1529         sprintf(info->bus_info, "%s", dev_name(&wl_cfg80211_get_sdio_func()->dev));
1530 }
1531
1532 struct ethtool_ops dhd_ethtool_ops = {
1533         .get_drvinfo = dhd_ethtool_get_drvinfo
1534 };
1535
1536 static int dhd_ethtool(dhd_info_t *dhd, void *uaddr)
1537 {
1538         struct ethtool_drvinfo info;
1539         char drvname[sizeof(info.driver)];
1540         u32 cmd;
1541 #ifdef TOE
1542         struct ethtool_value edata;
1543         u32 toe_cmpnt, csum_dir;
1544         int ret;
1545 #endif
1546
1547         DHD_TRACE(("%s: Enter\n", __func__));
1548
1549         /* all ethtool calls start with a cmd word */
1550         if (copy_from_user(&cmd, uaddr, sizeof(u32)))
1551                 return -EFAULT;
1552
1553         switch (cmd) {
1554         case ETHTOOL_GDRVINFO:
1555                 /* Copy out any request driver name */
1556                 if (copy_from_user(&info, uaddr, sizeof(info)))
1557                         return -EFAULT;
1558                 strncpy(drvname, info.driver, sizeof(info.driver));
1559                 drvname[sizeof(info.driver) - 1] = '\0';
1560
1561                 /* clear struct for return */
1562                 memset(&info, 0, sizeof(info));
1563                 info.cmd = cmd;
1564
1565                 /* if dhd requested, identify ourselves */
1566                 if (strcmp(drvname, "?dhd") == 0) {
1567                         sprintf(info.driver, "dhd");
1568                         strcpy(info.version, EPI_VERSION_STR);
1569                 }
1570
1571                 /* otherwise, require dongle to be up */
1572                 else if (!dhd->pub.up) {
1573                         DHD_ERROR(("%s: dongle is not up\n", __func__));
1574                         return -ENODEV;
1575                 }
1576
1577                 /* finally, report dongle driver type */
1578                 else if (dhd->pub.iswl)
1579                         sprintf(info.driver, "wl");
1580                 else
1581                         sprintf(info.driver, "xx");
1582
1583                 sprintf(info.version, "%lu", dhd->pub.drv_version);
1584                 if (copy_to_user(uaddr, &info, sizeof(info)))
1585                         return -EFAULT;
1586                 DHD_CTL(("%s: given %*s, returning %s\n", __func__,
1587                          (int)sizeof(drvname), drvname, info.driver));
1588                 break;
1589
1590 #ifdef TOE
1591                 /* Get toe offload components from dongle */
1592         case ETHTOOL_GRXCSUM:
1593         case ETHTOOL_GTXCSUM:
1594                 ret = dhd_toe_get(dhd, 0, &toe_cmpnt);
1595                 if (ret < 0)
1596                         return ret;
1597
1598                 csum_dir =
1599                     (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
1600
1601                 edata.cmd = cmd;
1602                 edata.data = (toe_cmpnt & csum_dir) ? 1 : 0;
1603
1604                 if (copy_to_user(uaddr, &edata, sizeof(edata)))
1605                         return -EFAULT;
1606                 break;
1607
1608                 /* Set toe offload components in dongle */
1609         case ETHTOOL_SRXCSUM:
1610         case ETHTOOL_STXCSUM:
1611                 if (copy_from_user(&edata, uaddr, sizeof(edata)))
1612                         return -EFAULT;
1613
1614                 /* Read the current settings, update and write back */
1615                 ret = dhd_toe_get(dhd, 0, &toe_cmpnt);
1616                 if (ret < 0)
1617                         return ret;
1618
1619                 csum_dir =
1620                     (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
1621
1622                 if (edata.data != 0)
1623                         toe_cmpnt |= csum_dir;
1624                 else
1625                         toe_cmpnt &= ~csum_dir;
1626
1627                 ret = dhd_toe_set(dhd, 0, toe_cmpnt);
1628                 if (ret < 0)
1629                         return ret;
1630
1631                 /* If setting TX checksum mode, tell Linux the new mode */
1632                 if (cmd == ETHTOOL_STXCSUM) {
1633                         if (edata.data)
1634                                 dhd->iflist[0]->net->features |=
1635                                     NETIF_F_IP_CSUM;
1636                         else
1637                                 dhd->iflist[0]->net->features &=
1638                                     ~NETIF_F_IP_CSUM;
1639                 }
1640
1641                 break;
1642 #endif                          /* TOE */
1643
1644         default:
1645                 return -EOPNOTSUPP;
1646         }
1647
1648         return 0;
1649 }
1650
1651 static s16 linuxbcmerrormap[] = { 0,    /* 0 */
1652         -EINVAL,                /* BCME_ERROR */
1653         -EINVAL,                /* BCME_BADARG */
1654         -EINVAL,                /* BCME_BADOPTION */
1655         -EINVAL,                /* BCME_NOTUP */
1656         -EINVAL,                /* BCME_NOTDOWN */
1657         -EINVAL,                /* BCME_NOTAP */
1658         -EINVAL,                /* BCME_NOTSTA */
1659         -EINVAL,                /* BCME_BADKEYIDX */
1660         -EINVAL,                /* BCME_RADIOOFF */
1661         -EINVAL,                /* BCME_NOTBANDLOCKED */
1662         -EINVAL,                /* BCME_NOCLK */
1663         -EINVAL,                /* BCME_BADRATESET */
1664         -EINVAL,                /* BCME_BADBAND */
1665         -E2BIG,                 /* BCME_BUFTOOSHORT */
1666         -E2BIG,                 /* BCME_BUFTOOLONG */
1667         -EBUSY,                 /* BCME_BUSY */
1668         -EINVAL,                /* BCME_NOTASSOCIATED */
1669         -EINVAL,                /* BCME_BADSSIDLEN */
1670         -EINVAL,                /* BCME_OUTOFRANGECHAN */
1671         -EINVAL,                /* BCME_BADCHAN */
1672         -EFAULT,                /* BCME_BADADDR */
1673         -ENOMEM,                /* BCME_NORESOURCE */
1674         -EOPNOTSUPP,            /* BCME_UNSUPPORTED */
1675         -EMSGSIZE,              /* BCME_BADLENGTH */
1676         -EINVAL,                /* BCME_NOTREADY */
1677         -EPERM,                 /* BCME_NOTPERMITTED */
1678         -ENOMEM,                /* BCME_NOMEM */
1679         -EINVAL,                /* BCME_ASSOCIATED */
1680         -ERANGE,                /* BCME_RANGE */
1681         -EINVAL,                /* BCME_NOTFOUND */
1682         -EINVAL,                /* BCME_WME_NOT_ENABLED */
1683         -EINVAL,                /* BCME_TSPEC_NOTFOUND */
1684         -EINVAL,                /* BCME_ACM_NOTSUPPORTED */
1685         -EINVAL,                /* BCME_NOT_WME_ASSOCIATION */
1686         -EIO,                   /* BCME_SDIO_ERROR */
1687         -ENODEV,                /* BCME_DONGLE_DOWN */
1688         -EINVAL,                /* BCME_VERSION */
1689         -EIO,                   /* BCME_TXFAIL */
1690         -EIO,                   /* BCME_RXFAIL */
1691         -EINVAL,                /* BCME_NODEVICE */
1692         -EINVAL,                /* BCME_NMODE_DISABLED */
1693         -ENODATA,               /* BCME_NONRESIDENT */
1694 };
1695
1696 static int dhd_ioctl_entry(struct net_device *net, struct ifreq *ifr, int cmd)
1697 {
1698         dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1699         dhd_ioctl_t ioc;
1700         int bcmerror = 0;
1701         int buflen = 0;
1702         void *buf = NULL;
1703         uint driver = 0;
1704         int ifidx;
1705         bool is_set_key_cmd;
1706
1707         ifidx = dhd_net2idx(dhd, net);
1708         DHD_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __func__, ifidx, cmd));
1709
1710         if (ifidx == DHD_BAD_IF)
1711                 return -1;
1712
1713 #if defined(CONFIG_WIRELESS_EXT)
1714         /* linux wireless extensions */
1715         if ((cmd >= SIOCIWFIRST) && (cmd <= SIOCIWLAST)) {
1716                 /* may recurse, do NOT lock */
1717                 return wl_iw_ioctl(net, ifr, cmd);
1718         }
1719 #endif                          /* defined(CONFIG_WIRELESS_EXT) */
1720
1721         if (cmd == SIOCETHTOOL)
1722                 return dhd_ethtool(dhd, (void *)ifr->ifr_data);
1723
1724         if (cmd != SIOCDEVPRIVATE)
1725                 return -EOPNOTSUPP;
1726
1727         memset(&ioc, 0, sizeof(ioc));
1728
1729         /* Copy the ioc control structure part of ioctl request */
1730         if (copy_from_user(&ioc, ifr->ifr_data, sizeof(wl_ioctl_t))) {
1731                 bcmerror = -BCME_BADADDR;
1732                 goto done;
1733         }
1734
1735         /* Copy out any buffer passed */
1736         if (ioc.buf) {
1737                 buflen = min_t(int, ioc.len, DHD_IOCTL_MAXLEN);
1738                 /* optimization for direct ioctl calls from kernel */
1739                 /*
1740                    if (segment_eq(get_fs(), KERNEL_DS)) {
1741                    buf = ioc.buf;
1742                    } else {
1743                  */
1744                 {
1745                         buf = kmalloc(buflen, GFP_ATOMIC);
1746                         if (!buf) {
1747                                 bcmerror = -BCME_NOMEM;
1748                                 goto done;
1749                         }
1750                         if (copy_from_user(buf, ioc.buf, buflen)) {
1751                                 bcmerror = -BCME_BADADDR;
1752                                 goto done;
1753                         }
1754                 }
1755         }
1756
1757         /* To differentiate between wl and dhd read 4 more byes */
1758         if ((copy_from_user(&driver, (char *)ifr->ifr_data + sizeof(wl_ioctl_t),
1759                             sizeof(uint)) != 0)) {
1760                 bcmerror = -BCME_BADADDR;
1761                 goto done;
1762         }
1763
1764         if (!capable(CAP_NET_ADMIN)) {
1765                 bcmerror = -BCME_EPERM;
1766                 goto done;
1767         }
1768
1769         /* check for local dhd ioctl and handle it */
1770         if (driver == DHD_IOCTL_MAGIC) {
1771                 bcmerror = dhd_ioctl((void *)&dhd->pub, &ioc, buf, buflen);
1772                 if (bcmerror)
1773                         dhd->pub.bcmerror = bcmerror;
1774                 goto done;
1775         }
1776
1777         /* send to dongle (must be up, and wl) */
1778         if ((dhd->pub.busstate != DHD_BUS_DATA)) {
1779                 DHD_ERROR(("%s DONGLE_DOWN,__func__\n", __func__));
1780                 bcmerror = BCME_DONGLE_DOWN;
1781                 goto done;
1782         }
1783
1784         if (!dhd->pub.iswl) {
1785                 bcmerror = BCME_DONGLE_DOWN;
1786                 goto done;
1787         }
1788
1789         /* Intercept WLC_SET_KEY IOCTL - serialize M4 send and set key IOCTL to
1790          * prevent M4 encryption.
1791          */
1792         is_set_key_cmd = ((ioc.cmd == WLC_SET_KEY) ||
1793                           ((ioc.cmd == WLC_SET_VAR) &&
1794                            !(strncmp("wsec_key", ioc.buf, 9))) ||
1795                           ((ioc.cmd == WLC_SET_VAR) &&
1796                            !(strncmp("bsscfg:wsec_key", ioc.buf, 15))));
1797         if (is_set_key_cmd)
1798                 dhd_wait_pend8021x(net);
1799
1800         WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_IOCTL, "dhd_ioctl_entry");
1801         WAKE_LOCK(&dhd->pub, WAKE_LOCK_IOCTL);
1802
1803         bcmerror =
1804             dhd_prot_ioctl(&dhd->pub, ifidx, (wl_ioctl_t *)&ioc, buf, buflen);
1805
1806         WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_IOCTL);
1807         WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_IOCTL);
1808 done:
1809         if (!bcmerror && buf && ioc.buf) {
1810                 if (copy_to_user(ioc.buf, buf, buflen))
1811                         bcmerror = -EFAULT;
1812         }
1813
1814         if (buf)
1815                 kfree(buf);
1816
1817         if (bcmerror > 0)
1818                 bcmerror = 0;
1819         else if (bcmerror < BCME_LAST)
1820                 bcmerror = BCME_ERROR;
1821
1822         return linuxbcmerrormap[-bcmerror];
1823 }
1824
1825 static int dhd_stop(struct net_device *net)
1826 {
1827 #if !defined(IGNORE_ETH0_DOWN)
1828         dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1829
1830         DHD_TRACE(("%s: Enter\n", __func__));
1831         if (IS_CFG80211_FAVORITE()) {
1832                 wl_cfg80211_down();
1833         }
1834         if (dhd->pub.up == 0)
1835                 return 0;
1836
1837         /* Set state and stop OS transmissions */
1838         dhd->pub.up = 0;
1839         netif_stop_queue(net);
1840 #else
1841         DHD_ERROR(("BYPASS %s:due to BRCM compilation : under investigation\n",
1842                 __func__));
1843 #endif                          /* !defined(IGNORE_ETH0_DOWN) */
1844
1845         return 0;
1846 }
1847
1848 static int dhd_open(struct net_device *net)
1849 {
1850         dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1851 #ifdef TOE
1852         u32 toe_ol;
1853 #endif
1854         int ifidx = dhd_net2idx(dhd, net);
1855         s32 ret = 0;
1856
1857         DHD_TRACE(("%s: ifidx %d\n", __func__, ifidx));
1858
1859         if (ifidx == 0) {       /* do it only for primary eth0 */
1860
1861                 /* try to bring up bus */
1862                 ret = dhd_bus_start(&dhd->pub);
1863                 if (ret != 0) {
1864                         DHD_ERROR(("%s: failed with code %d\n", __func__, ret));
1865                         return -1;
1866                 }
1867                 atomic_set(&dhd->pend_8021x_cnt, 0);
1868
1869                 memcpy(net->dev_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
1870
1871 #ifdef TOE
1872                 /* Get current TOE mode from dongle */
1873                 if (dhd_toe_get(dhd, ifidx, &toe_ol) >= 0
1874                     && (toe_ol & TOE_TX_CSUM_OL) != 0)
1875                         dhd->iflist[ifidx]->net->features |= NETIF_F_IP_CSUM;
1876                 else
1877                         dhd->iflist[ifidx]->net->features &= ~NETIF_F_IP_CSUM;
1878 #endif
1879         }
1880         /* Allow transmit calls */
1881         netif_start_queue(net);
1882         dhd->pub.up = 1;
1883         if (IS_CFG80211_FAVORITE()) {
1884                 if (unlikely(wl_cfg80211_up())) {
1885                         DHD_ERROR(("%s: failed to bring up cfg80211\n",
1886                                    __func__));
1887                         return -1;
1888                 }
1889         }
1890
1891         return ret;
1892 }
1893
1894 struct osl_info *dhd_osl_attach(void *pdev, uint bustype)
1895 {
1896         return osl_attach(pdev, bustype);
1897 }
1898
1899 void dhd_osl_detach(struct osl_info *osh)
1900 {
1901         osl_detach(osh);
1902 }
1903
1904 int
1905 dhd_add_if(dhd_info_t *dhd, int ifidx, void *handle, char *name,
1906            u8 *mac_addr, u32 flags, u8 bssidx)
1907 {
1908         dhd_if_t *ifp;
1909
1910         DHD_TRACE(("%s: idx %d, handle->%p\n", __func__, ifidx, handle));
1911
1912         ASSERT(dhd && (ifidx < DHD_MAX_IFS));
1913
1914         ifp = dhd->iflist[ifidx];
1915         if (!ifp && !(ifp = kmalloc(sizeof(dhd_if_t), GFP_ATOMIC))) {
1916                 DHD_ERROR(("%s: OOM - dhd_if_t\n", __func__));
1917                 return -ENOMEM;
1918         }
1919
1920         memset(ifp, 0, sizeof(dhd_if_t));
1921         ifp->info = dhd;
1922         dhd->iflist[ifidx] = ifp;
1923         strlcpy(ifp->name, name, IFNAMSIZ);
1924         if (mac_addr != NULL)
1925                 memcpy(&ifp->mac_addr, mac_addr, ETHER_ADDR_LEN);
1926
1927         if (handle == NULL) {
1928                 ifp->state = WLC_E_IF_ADD;
1929                 ifp->idx = ifidx;
1930                 ASSERT(dhd->sysioc_tsk);
1931                 up(&dhd->sysioc_sem);
1932         } else
1933                 ifp->net = (struct net_device *)handle;
1934
1935         return 0;
1936 }
1937
1938 void dhd_del_if(dhd_info_t *dhd, int ifidx)
1939 {
1940         dhd_if_t *ifp;
1941
1942         DHD_TRACE(("%s: idx %d\n", __func__, ifidx));
1943
1944         ASSERT(dhd && ifidx && (ifidx < DHD_MAX_IFS));
1945         ifp = dhd->iflist[ifidx];
1946         if (!ifp) {
1947                 DHD_ERROR(("%s: Null interface\n", __func__));
1948                 return;
1949         }
1950
1951         ifp->state = WLC_E_IF_DEL;
1952         ifp->idx = ifidx;
1953         ASSERT(dhd->sysioc_tsk);
1954         up(&dhd->sysioc_sem);
1955 }
1956
1957 dhd_pub_t *dhd_attach(struct osl_info *osh, struct dhd_bus *bus,
1958                         uint bus_hdrlen)
1959 {
1960         dhd_info_t *dhd = NULL;
1961         struct net_device *net;
1962
1963         DHD_TRACE(("%s: Enter\n", __func__));
1964         /* updates firmware nvram path if it was provided as module
1965                  paramters */
1966         if ((firmware_path != NULL) && (firmware_path[0] != '\0'))
1967                 strcpy(fw_path, firmware_path);
1968         if ((nvram_path != NULL) && (nvram_path[0] != '\0'))
1969                 strcpy(nv_path, nvram_path);
1970
1971         /* Allocate etherdev, including space for private structure */
1972         net = alloc_etherdev(sizeof(dhd));
1973         if (!net) {
1974                 DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
1975                 goto fail;
1976         }
1977
1978         /* Allocate primary dhd_info */
1979         dhd = kmalloc(sizeof(dhd_info_t), GFP_ATOMIC);
1980         if (!dhd) {
1981                 DHD_ERROR(("%s: OOM - alloc dhd_info\n", __func__));
1982                 goto fail;
1983         }
1984
1985         memset(dhd, 0, sizeof(dhd_info_t));
1986
1987         /*
1988          * Save the dhd_info into the priv
1989          */
1990         memcpy(netdev_priv(net), &dhd, sizeof(dhd));
1991         dhd->pub.osh = osh;
1992
1993         /* Set network interface name if it was provided as module parameter */
1994         if (iface_name[0]) {
1995                 int len;
1996                 char ch;
1997                 strncpy(net->name, iface_name, IFNAMSIZ);
1998                 net->name[IFNAMSIZ - 1] = 0;
1999                 len = strlen(net->name);
2000                 ch = net->name[len - 1];
2001                 if ((ch > '9' || ch < '0') && (len < IFNAMSIZ - 2))
2002                         strcat(net->name, "%d");
2003         }
2004
2005         if (dhd_add_if(dhd, 0, (void *)net, net->name, NULL, 0, 0) ==
2006             DHD_BAD_IF)
2007                 goto fail;
2008
2009         net->netdev_ops = NULL;
2010         sema_init(&dhd->proto_sem, 1);
2011         /* Initialize other structure content */
2012         init_waitqueue_head(&dhd->ioctl_resp_wait);
2013         init_waitqueue_head(&dhd->ctrl_wait);
2014
2015         /* Initialize the spinlocks */
2016         spin_lock_init(&dhd->sdlock);
2017         spin_lock_init(&dhd->txqlock);
2018
2019         /* Link to info module */
2020         dhd->pub.info = dhd;
2021
2022         /* Link to bus module */
2023         dhd->pub.bus = bus;
2024         dhd->pub.hdrlen = bus_hdrlen;
2025
2026         /* Attach and link in the protocol */
2027         if (dhd_prot_attach(&dhd->pub) != 0) {
2028                 DHD_ERROR(("dhd_prot_attach failed\n"));
2029                 goto fail;
2030         }
2031 #if defined(CONFIG_WIRELESS_EXT)
2032         /* Attach and link in the iw */
2033         if (wl_iw_attach(net, (void *)&dhd->pub) != 0) {
2034                 DHD_ERROR(("wl_iw_attach failed\n"));
2035                 goto fail;
2036         }
2037 #endif  /* defined(CONFIG_WIRELESS_EXT) */
2038
2039         /* Attach and link in the cfg80211 */
2040         if (IS_CFG80211_FAVORITE()) {
2041                 if (unlikely(wl_cfg80211_attach(net, &dhd->pub))) {
2042                         DHD_ERROR(("wl_cfg80211_attach failed\n"));
2043                         goto fail;
2044                 }
2045                 if (!NO_FW_REQ()) {
2046                         strcpy(fw_path, wl_cfg80211_get_fwname());
2047                         strcpy(nv_path, wl_cfg80211_get_nvramname());
2048                 }
2049                 wl_cfg80211_dbg_level(DBG_CFG80211_GET());
2050         }
2051
2052         /* Set up the watchdog timer */
2053         init_timer(&dhd->timer);
2054         dhd->timer.data = (unsigned long) dhd;
2055         dhd->timer.function = dhd_watchdog;
2056
2057         /* Initialize thread based operation and lock */
2058         sema_init(&dhd->sdsem, 1);
2059         if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0))
2060                 dhd->threads_only = true;
2061         else
2062                 dhd->threads_only = false;
2063
2064         if (dhd_dpc_prio >= 0) {
2065                 /* Initialize watchdog thread */
2066                 sema_init(&dhd->watchdog_sem, 0);
2067                 dhd->watchdog_tsk = kthread_run(dhd_watchdog_thread, dhd,
2068                                                 "dhd_watchdog");
2069                 if (IS_ERR(dhd->watchdog_tsk)) {
2070                         printk(KERN_WARNING
2071                                 "dhd_watchdog thread failed to start\n");
2072                         dhd->watchdog_tsk = NULL;
2073                 }
2074         } else {
2075                 dhd->watchdog_tsk = NULL;
2076         }
2077
2078         /* Set up the bottom half handler */
2079         if (dhd_dpc_prio >= 0) {
2080                 /* Initialize DPC thread */
2081                 sema_init(&dhd->dpc_sem, 0);
2082                 dhd->dpc_tsk = kthread_run(dhd_dpc_thread, dhd, "dhd_dpc");
2083                 if (IS_ERR(dhd->dpc_tsk)) {
2084                         printk(KERN_WARNING
2085                                 "dhd_dpc thread failed to start\n");
2086                         dhd->dpc_tsk = NULL;
2087                 }
2088         } else {
2089                 tasklet_init(&dhd->tasklet, dhd_dpc, (unsigned long) dhd);
2090                 dhd->dpc_tsk = NULL;
2091         }
2092
2093         if (dhd_sysioc) {
2094                 sema_init(&dhd->sysioc_sem, 0);
2095                 dhd->sysioc_tsk = kthread_run(_dhd_sysioc_thread, dhd,
2096                                                 "_dhd_sysioc");
2097                 if (IS_ERR(dhd->sysioc_tsk)) {
2098                         printk(KERN_WARNING
2099                                 "_dhd_sysioc thread failed to start\n");
2100                         dhd->sysioc_tsk = NULL;
2101                 }
2102         } else
2103                 dhd->sysioc_tsk = NULL;
2104
2105         /*
2106          * Save the dhd_info into the priv
2107          */
2108         memcpy(netdev_priv(net), &dhd, sizeof(dhd));
2109
2110 #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2111         g_bus = bus;
2112 #endif
2113 #if defined(CONFIG_PM_SLEEP)
2114         register_pm_notifier(&dhd_sleep_pm_notifier);
2115 #endif  /* defined(CONFIG_PM_SLEEP) */
2116         /* && defined(DHD_GPL) */
2117         /* Init lock suspend to prevent kernel going to suspend */
2118         WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_TMOUT, "dhd_wake_lock");
2119         WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_LINK_DOWN_TMOUT,
2120                        "dhd_wake_lock_link_dw_event");
2121         WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_PNO_FIND_TMOUT,
2122                        "dhd_wake_lock_link_pno_find_event");
2123 #ifdef CONFIG_HAS_EARLYSUSPEND
2124         dhd->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 20;
2125         dhd->early_suspend.suspend = dhd_early_suspend;
2126         dhd->early_suspend.resume = dhd_late_resume;
2127         register_early_suspend(&dhd->early_suspend);
2128 #endif
2129
2130         return &dhd->pub;
2131
2132 fail:
2133         if (net)
2134                 free_netdev(net);
2135         if (dhd)
2136                 dhd_detach(&dhd->pub);
2137
2138         return NULL;
2139 }
2140
2141 int dhd_bus_start(dhd_pub_t *dhdp)
2142 {
2143         int ret = -1;
2144         dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
2145 #ifdef EMBEDDED_PLATFORM
2146         char iovbuf[WL_EVENTING_MASK_LEN + 12]; /*  Room for "event_msgs" +
2147                                                  '\0' + bitvec  */
2148 #endif                          /* EMBEDDED_PLATFORM */
2149
2150         ASSERT(dhd);
2151
2152         DHD_TRACE(("%s:\n", __func__));
2153
2154         /* try to download image and nvram to the dongle */
2155         if (dhd->pub.busstate == DHD_BUS_DOWN) {
2156                 WAKE_LOCK_INIT(dhdp, WAKE_LOCK_DOWNLOAD, "dhd_bus_start");
2157                 WAKE_LOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2158                 if (!(dhd_bus_download_firmware(dhd->pub.bus, dhd->pub.osh,
2159                                                 fw_path, nv_path))) {
2160                         DHD_ERROR(("%s: dhdsdio_probe_download failed. "
2161                                 "firmware = %s nvram = %s\n",
2162                                 __func__, fw_path, nv_path));
2163                         WAKE_UNLOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2164                         WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_DOWNLOAD);
2165                         return -1;
2166                 }
2167
2168                 WAKE_UNLOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2169                 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_DOWNLOAD);
2170         }
2171
2172         /* Start the watchdog timer */
2173         dhd->pub.tickcnt = 0;
2174         dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
2175
2176         /* Bring up the bus */
2177         ret = dhd_bus_init(&dhd->pub, true);
2178         if (ret != 0) {
2179                 DHD_ERROR(("%s, dhd_bus_init failed %d\n", __func__, ret));
2180                 return ret;
2181         }
2182 #if defined(OOB_INTR_ONLY)
2183         /* Host registration for OOB interrupt */
2184         if (bcmsdh_register_oob_intr(dhdp)) {
2185                 del_timer_sync(&dhd->timer);
2186                 dhd->wd_timer_valid = false;
2187                 DHD_ERROR(("%s Host failed to resgister for OOB\n", __func__));
2188                 return -ENODEV;
2189         }
2190
2191         /* Enable oob at firmware */
2192         dhd_enable_oob_intr(dhd->pub.bus, true);
2193 #endif                          /* defined(OOB_INTR_ONLY) */
2194
2195         /* If bus is not ready, can't come up */
2196         if (dhd->pub.busstate != DHD_BUS_DATA) {
2197                 del_timer_sync(&dhd->timer);
2198                 dhd->wd_timer_valid = false;
2199                 DHD_ERROR(("%s failed bus is not ready\n", __func__));
2200                 return -ENODEV;
2201         }
2202 #ifdef EMBEDDED_PLATFORM
2203         bcm_mkiovar("event_msgs", dhdp->eventmask, WL_EVENTING_MASK_LEN, iovbuf,
2204                     sizeof(iovbuf));
2205         dhdcdc_query_ioctl(dhdp, 0, WLC_GET_VAR, iovbuf, sizeof(iovbuf));
2206         bcopy(iovbuf, dhdp->eventmask, WL_EVENTING_MASK_LEN);
2207
2208         setbit(dhdp->eventmask, WLC_E_SET_SSID);
2209         setbit(dhdp->eventmask, WLC_E_PRUNE);
2210         setbit(dhdp->eventmask, WLC_E_AUTH);
2211         setbit(dhdp->eventmask, WLC_E_REASSOC);
2212         setbit(dhdp->eventmask, WLC_E_REASSOC_IND);
2213         setbit(dhdp->eventmask, WLC_E_DEAUTH_IND);
2214         setbit(dhdp->eventmask, WLC_E_DISASSOC_IND);
2215         setbit(dhdp->eventmask, WLC_E_DISASSOC);
2216         setbit(dhdp->eventmask, WLC_E_JOIN);
2217         setbit(dhdp->eventmask, WLC_E_ASSOC_IND);
2218         setbit(dhdp->eventmask, WLC_E_PSK_SUP);
2219         setbit(dhdp->eventmask, WLC_E_LINK);
2220         setbit(dhdp->eventmask, WLC_E_NDIS_LINK);
2221         setbit(dhdp->eventmask, WLC_E_MIC_ERROR);
2222         setbit(dhdp->eventmask, WLC_E_PMKID_CACHE);
2223         setbit(dhdp->eventmask, WLC_E_TXFAIL);
2224         setbit(dhdp->eventmask, WLC_E_JOIN_START);
2225         setbit(dhdp->eventmask, WLC_E_SCAN_COMPLETE);
2226 #ifdef PNO_SUPPORT
2227         setbit(dhdp->eventmask, WLC_E_PFN_NET_FOUND);
2228 #endif                          /* PNO_SUPPORT */
2229
2230 /* enable dongle roaming event */
2231
2232         dhdp->pktfilter_count = 1;
2233         /* Setup filter to allow only unicast */
2234         dhdp->pktfilter[0] = "100 0 0 0 0x01 0x00";
2235 #endif                          /* EMBEDDED_PLATFORM */
2236
2237         /* Bus is ready, do any protocol initialization */
2238         ret = dhd_prot_init(&dhd->pub);
2239         if (ret < 0)
2240                 return ret;
2241
2242         return 0;
2243 }
2244
2245 int
2246 dhd_iovar(dhd_pub_t *pub, int ifidx, char *name, char *cmd_buf, uint cmd_len,
2247           int set)
2248 {
2249         char buf[strlen(name) + 1 + cmd_len];
2250         int len = sizeof(buf);
2251         wl_ioctl_t ioc;
2252         int ret;
2253
2254         len = bcm_mkiovar(name, cmd_buf, cmd_len, buf, len);
2255
2256         memset(&ioc, 0, sizeof(ioc));
2257
2258         ioc.cmd = set ? WLC_SET_VAR : WLC_GET_VAR;
2259         ioc.buf = buf;
2260         ioc.len = len;
2261         ioc.set = set;
2262
2263         ret = dhd_prot_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);
2264         if (!set && ret >= 0)
2265                 memcpy(cmd_buf, buf, cmd_len);
2266
2267         return ret;
2268 }
2269
2270 static struct net_device_ops dhd_ops_pri = {
2271         .ndo_open = dhd_open,
2272         .ndo_stop = dhd_stop,
2273         .ndo_get_stats = dhd_get_stats,
2274         .ndo_do_ioctl = dhd_ioctl_entry,
2275         .ndo_start_xmit = dhd_start_xmit,
2276         .ndo_set_mac_address = dhd_set_mac_address,
2277         .ndo_set_multicast_list = dhd_set_multicast_list
2278 };
2279
2280 int dhd_net_attach(dhd_pub_t *dhdp, int ifidx)
2281 {
2282         dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
2283         struct net_device *net;
2284         u8 temp_addr[ETHER_ADDR_LEN] = {
2285                 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33};
2286
2287         DHD_TRACE(("%s: ifidx %d\n", __func__, ifidx));
2288
2289         ASSERT(dhd && dhd->iflist[ifidx]);
2290
2291         net = dhd->iflist[ifidx]->net;
2292         ASSERT(net);
2293
2294         ASSERT(!net->netdev_ops);
2295         net->netdev_ops = &dhd_ops_pri;
2296
2297         /*
2298          * We have to use the primary MAC for virtual interfaces
2299          */
2300         if (ifidx != 0) {
2301                 /* for virtual interfaces use the primary MAC  */
2302                 memcpy(temp_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
2303
2304         }
2305
2306         if (ifidx == 1) {
2307                 DHD_TRACE(("%s ACCESS POINT MAC: \n", __func__));
2308                 /*  ACCESSPOINT INTERFACE CASE */
2309                 temp_addr[0] |= 0X02;   /* set bit 2 ,
2310                          - Locally Administered address  */
2311
2312         }
2313         net->hard_header_len = ETH_HLEN + dhd->pub.hdrlen;
2314         net->ethtool_ops = &dhd_ethtool_ops;
2315
2316 #if defined(CONFIG_WIRELESS_EXT)
2317         if (!IS_CFG80211_FAVORITE()) {
2318 #if WIRELESS_EXT < 19
2319                 net->get_wireless_stats = dhd_get_wireless_stats;
2320 #endif                          /* WIRELESS_EXT < 19 */
2321 #if WIRELESS_EXT > 12
2322                 net->wireless_handlers =
2323                     (struct iw_handler_def *)&wl_iw_handler_def;
2324 #endif                          /* WIRELESS_EXT > 12 */
2325         }
2326 #endif                          /* defined(CONFIG_WIRELESS_EXT) */
2327
2328         dhd->pub.rxsz = net->mtu + net->hard_header_len + dhd->pub.hdrlen;
2329
2330         memcpy(net->dev_addr, temp_addr, ETHER_ADDR_LEN);
2331
2332         if (register_netdev(net) != 0) {
2333                 DHD_ERROR(("%s: couldn't register the net device\n",
2334                         __func__));
2335                 goto fail;
2336         }
2337
2338         printf("%s: Broadcom Dongle Host Driver\n", net->name);
2339
2340         return 0;
2341
2342 fail:
2343         net->netdev_ops = NULL;
2344         return BCME_ERROR;
2345 }
2346
2347 void dhd_bus_detach(dhd_pub_t *dhdp)
2348 {
2349         dhd_info_t *dhd;
2350
2351         DHD_TRACE(("%s: Enter\n", __func__));
2352
2353         if (dhdp) {
2354                 dhd = (dhd_info_t *) dhdp->info;
2355                 if (dhd) {
2356                         /* Stop the protocol module */
2357                         dhd_prot_stop(&dhd->pub);
2358
2359                         /* Stop the bus module */
2360                         dhd_bus_stop(dhd->pub.bus, true);
2361 #if defined(OOB_INTR_ONLY)
2362                         bcmsdh_unregister_oob_intr();
2363 #endif                          /* defined(OOB_INTR_ONLY) */
2364
2365                         /* Clear the watchdog timer */
2366                         del_timer_sync(&dhd->timer);
2367                         dhd->wd_timer_valid = false;
2368                 }
2369         }
2370 }
2371
2372 void dhd_detach(dhd_pub_t *dhdp)
2373 {
2374         dhd_info_t *dhd;
2375
2376         DHD_TRACE(("%s: Enter\n", __func__));
2377
2378         if (dhdp) {
2379                 dhd = (dhd_info_t *) dhdp->info;
2380                 if (dhd) {
2381                         dhd_if_t *ifp;
2382                         int i;
2383
2384 #if defined(CONFIG_HAS_EARLYSUSPEND)
2385                         if (dhd->early_suspend.suspend)
2386                                 unregister_early_suspend(&dhd->early_suspend);
2387 #endif                          /* defined(CONFIG_HAS_EARLYSUSPEND) */
2388
2389                         for (i = 1; i < DHD_MAX_IFS; i++)
2390                                 if (dhd->iflist[i])
2391                                         dhd_del_if(dhd, i);
2392
2393                         ifp = dhd->iflist[0];
2394                         ASSERT(ifp);
2395                         if (ifp->net->netdev_ops == &dhd_ops_pri) {
2396                                 dhd_stop(ifp->net);
2397                                 unregister_netdev(ifp->net);
2398                         }
2399
2400                         if (dhd->watchdog_tsk) {
2401                                 send_sig(SIGTERM, dhd->watchdog_tsk, 1);
2402                                 kthread_stop(dhd->watchdog_tsk);
2403                                 dhd->watchdog_tsk = NULL;
2404                         }
2405
2406                         if (dhd->dpc_tsk) {
2407                                 send_sig(SIGTERM, dhd->dpc_tsk, 1);
2408                                 kthread_stop(dhd->dpc_tsk);
2409                                 dhd->dpc_tsk = NULL;
2410                         } else
2411                                 tasklet_kill(&dhd->tasklet);
2412
2413                         if (dhd->sysioc_tsk) {
2414                                 send_sig(SIGTERM, dhd->sysioc_tsk, 1);
2415                                 kthread_stop(dhd->sysioc_tsk);
2416                                 dhd->sysioc_tsk = NULL;
2417                         }
2418
2419                         dhd_bus_detach(dhdp);
2420
2421                         if (dhdp->prot)
2422                                 dhd_prot_detach(dhdp);
2423
2424 #if defined(CONFIG_WIRELESS_EXT)
2425                         wl_iw_detach();
2426 #endif                          /* (CONFIG_WIRELESS_EXT) */
2427
2428                         if (IS_CFG80211_FAVORITE())
2429                                 wl_cfg80211_detach();
2430
2431 #if defined(CONFIG_PM_SLEEP)
2432                         unregister_pm_notifier(&dhd_sleep_pm_notifier);
2433 #endif  /* defined(CONFIG_PM_SLEEP) */
2434                         /* && defined(DHD_GPL) */
2435                         WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_TMOUT);
2436                         WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_LINK_DOWN_TMOUT);
2437                         WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_PNO_FIND_TMOUT);
2438                         free_netdev(ifp->net);
2439                         kfree(ifp);
2440                         kfree(dhd);
2441                 }
2442         }
2443 }
2444
2445 static void __exit dhd_module_cleanup(void)
2446 {
2447         DHD_TRACE(("%s: Enter\n", __func__));
2448
2449         dhd_bus_unregister();
2450 #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2451         wifi_del_dev();
2452 #endif
2453         /* Call customer gpio to turn off power with WL_REG_ON signal */
2454         dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
2455 }
2456
2457 static int __init dhd_module_init(void)
2458 {
2459         int error;
2460
2461         DHD_TRACE(("%s: Enter\n", __func__));
2462
2463         /* Sanity check on the module parameters */
2464         do {
2465                 /* Both watchdog and DPC as tasklets are ok */
2466                 if ((dhd_watchdog_prio < 0) && (dhd_dpc_prio < 0))
2467                         break;
2468
2469                 /* If both watchdog and DPC are threads, TX must be deferred */
2470                 if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0)
2471                     && dhd_deferred_tx)
2472                         break;
2473
2474                 DHD_ERROR(("Invalid module parameters.\n"));
2475                 return -EINVAL;
2476         } while (0);
2477         /* Call customer gpio to turn on power with WL_REG_ON signal */
2478         dhd_customer_gpio_wlan_ctrl(WLAN_POWER_ON);
2479
2480 #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2481         sema_init(&wifi_control_sem, 0);
2482
2483         error = wifi_add_dev();
2484         if (error) {
2485                 DHD_ERROR(("%s: platform_driver_register failed\n", __func__));
2486                 goto faild;
2487         }
2488
2489         /* Waiting callback after platform_driver_register is done or
2490                  exit with error */
2491         if (down_timeout(&wifi_control_sem, msecs_to_jiffies(1000)) != 0) {
2492                 printk(KERN_ERR "%s: platform_driver_register timeout\n",
2493                         __func__);
2494                 /* remove device */
2495                 wifi_del_dev();
2496                 goto faild;
2497         }
2498 #endif  /* #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
2499
2500         error = dhd_bus_register();
2501
2502         if (!error)
2503                 printf("\n%s\n", dhd_version);
2504         else {
2505                 DHD_ERROR(("%s: sdio_register_driver failed\n", __func__));
2506                 goto faild;
2507         }
2508         return error;
2509
2510 faild:
2511         /* turn off power and exit */
2512         dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
2513         return -EINVAL;
2514 }
2515
2516 module_init(dhd_module_init);
2517 module_exit(dhd_module_cleanup);
2518
2519 /*
2520  * OS specific functions required to implement DHD driver in OS independent way
2521  */
2522 int dhd_os_proto_block(dhd_pub_t *pub)
2523 {
2524         dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2525
2526         if (dhd) {
2527                 down(&dhd->proto_sem);
2528                 return 1;
2529         }
2530         return 0;
2531 }
2532
2533 int dhd_os_proto_unblock(dhd_pub_t *pub)
2534 {
2535         dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2536
2537         if (dhd) {
2538                 up(&dhd->proto_sem);
2539                 return 1;
2540         }
2541
2542         return 0;
2543 }
2544
2545 unsigned int dhd_os_get_ioctl_resp_timeout(void)
2546 {
2547         return (unsigned int)dhd_ioctl_timeout_msec;
2548 }
2549
2550 void dhd_os_set_ioctl_resp_timeout(unsigned int timeout_msec)
2551 {
2552         dhd_ioctl_timeout_msec = (int)timeout_msec;
2553 }
2554
2555 int dhd_os_ioctl_resp_wait(dhd_pub_t *pub, uint *condition, bool *pending)
2556 {
2557         dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2558         DECLARE_WAITQUEUE(wait, current);
2559         int timeout = dhd_ioctl_timeout_msec;
2560
2561         /* Convert timeout in millsecond to jiffies */
2562         timeout = timeout * HZ / 1000;
2563
2564         /* Wait until control frame is available */
2565         add_wait_queue(&dhd->ioctl_resp_wait, &wait);
2566         set_current_state(TASK_INTERRUPTIBLE);
2567
2568         while (!(*condition) && (!signal_pending(current) && timeout))
2569                 timeout = schedule_timeout(timeout);
2570
2571         if (signal_pending(current))
2572                 *pending = true;
2573
2574         set_current_state(TASK_RUNNING);
2575         remove_wait_queue(&dhd->ioctl_resp_wait, &wait);
2576
2577         return timeout;
2578 }
2579
2580 int dhd_os_ioctl_resp_wake(dhd_pub_t *pub)
2581 {
2582         dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2583
2584         if (waitqueue_active(&dhd->ioctl_resp_wait))
2585                 wake_up_interruptible(&dhd->ioctl_resp_wait);
2586
2587         return 0;
2588 }
2589
2590 void dhd_os_wd_timer(void *bus, uint wdtick)
2591 {
2592         dhd_pub_t *pub = bus;
2593         static uint save_dhd_watchdog_ms;
2594         dhd_info_t *dhd = (dhd_info_t *) pub->info;
2595
2596         /* don't start the wd until fw is loaded */
2597         if (pub->busstate == DHD_BUS_DOWN)
2598                 return;
2599
2600         /* Totally stop the timer */
2601         if (!wdtick && dhd->wd_timer_valid == true) {
2602                 del_timer_sync(&dhd->timer);
2603                 dhd->wd_timer_valid = false;
2604                 save_dhd_watchdog_ms = wdtick;
2605                 return;
2606         }
2607
2608         if (wdtick) {
2609                 dhd_watchdog_ms = (uint) wdtick;
2610
2611                 if (save_dhd_watchdog_ms != dhd_watchdog_ms) {
2612
2613                         if (dhd->wd_timer_valid == true)
2614                                 /* Stop timer and restart at new value */
2615                                 del_timer_sync(&dhd->timer);
2616
2617                         /* Create timer again when watchdog period is
2618                            dynamically changed or in the first instance
2619                          */
2620                         dhd->timer.expires =
2621                             jiffies + dhd_watchdog_ms * HZ / 1000;
2622                         add_timer(&dhd->timer);
2623
2624                 } else {
2625                         /* Re arm the timer, at last watchdog period */
2626                         mod_timer(&dhd->timer,
2627                                   jiffies + dhd_watchdog_ms * HZ / 1000);
2628                 }
2629
2630                 dhd->wd_timer_valid = true;
2631                 save_dhd_watchdog_ms = wdtick;
2632         }
2633 }
2634
2635 void *dhd_os_open_image(char *filename)
2636 {
2637         struct file *fp;
2638
2639         if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2640                 return wl_cfg80211_request_fw(filename);
2641
2642         fp = filp_open(filename, O_RDONLY, 0);
2643         /*
2644          * 2.6.11 (FC4) supports filp_open() but later revs don't?
2645          * Alternative:
2646          * fp = open_namei(AT_FDCWD, filename, O_RD, 0);
2647          * ???
2648          */
2649         if (IS_ERR(fp))
2650                 fp = NULL;
2651
2652         return fp;
2653 }
2654
2655 int dhd_os_get_image_block(char *buf, int len, void *image)
2656 {
2657         struct file *fp = (struct file *)image;
2658         int rdlen;
2659
2660         if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2661                 return wl_cfg80211_read_fw(buf, len);
2662
2663         if (!image)
2664                 return 0;
2665
2666         rdlen = kernel_read(fp, fp->f_pos, buf, len);
2667         if (rdlen > 0)
2668                 fp->f_pos += rdlen;
2669
2670         return rdlen;
2671 }
2672
2673 void dhd_os_close_image(void *image)
2674 {
2675         if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2676                 return wl_cfg80211_release_fw();
2677         if (image)
2678                 filp_close((struct file *)image, NULL);
2679 }
2680
2681 void dhd_os_sdlock(dhd_pub_t *pub)
2682 {
2683         dhd_info_t *dhd;
2684
2685         dhd = (dhd_info_t *) (pub->info);
2686
2687         if (dhd->threads_only)
2688                 down(&dhd->sdsem);
2689         else
2690                 spin_lock_bh(&dhd->sdlock);
2691 }
2692
2693 void dhd_os_sdunlock(dhd_pub_t *pub)
2694 {
2695         dhd_info_t *dhd;
2696
2697         dhd = (dhd_info_t *) (pub->info);
2698
2699         if (dhd->threads_only)
2700                 up(&dhd->sdsem);
2701         else
2702                 spin_unlock_bh(&dhd->sdlock);
2703 }
2704
2705 void dhd_os_sdlock_txq(dhd_pub_t *pub)
2706 {
2707         dhd_info_t *dhd;
2708
2709         dhd = (dhd_info_t *) (pub->info);
2710         spin_lock_bh(&dhd->txqlock);
2711 }
2712
2713 void dhd_os_sdunlock_txq(dhd_pub_t *pub)
2714 {
2715         dhd_info_t *dhd;
2716
2717         dhd = (dhd_info_t *) (pub->info);
2718         spin_unlock_bh(&dhd->txqlock);
2719 }
2720
2721 void dhd_os_sdlock_rxq(dhd_pub_t *pub)
2722 {
2723 }
2724
2725 void dhd_os_sdunlock_rxq(dhd_pub_t *pub)
2726 {
2727 }
2728
2729 void dhd_os_sdtxlock(dhd_pub_t *pub)
2730 {
2731         dhd_os_sdlock(pub);
2732 }
2733
2734 void dhd_os_sdtxunlock(dhd_pub_t *pub)
2735 {
2736         dhd_os_sdunlock(pub);
2737 }
2738
2739 #if defined(CONFIG_WIRELESS_EXT)
2740 struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev)
2741 {
2742         int res = 0;
2743         dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2744
2745         res = wl_iw_get_wireless_stats(dev, &dhd->iw.wstats);
2746
2747         if (res == 0)
2748                 return &dhd->iw.wstats;
2749         else
2750                 return NULL;
2751 }
2752 #endif  /* defined(CONFIG_WIRELESS_EXT) */
2753
2754 static int
2755 dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
2756                   wl_event_msg_t *event, void **data)
2757 {
2758         int bcmerror = 0;
2759
2760         ASSERT(dhd != NULL);
2761
2762         bcmerror = wl_host_event(dhd, ifidx, pktdata, event, data);
2763         if (bcmerror != BCME_OK)
2764                 return bcmerror;
2765
2766 #if defined(CONFIG_WIRELESS_EXT)
2767         if (!IS_CFG80211_FAVORITE()) {
2768                 if ((dhd->iflist[*ifidx] == NULL)
2769                     || (dhd->iflist[*ifidx]->net == NULL)) {
2770                         DHD_ERROR(("%s Exit null pointer\n", __func__));
2771                         return bcmerror;
2772                 }
2773
2774                 if (dhd->iflist[*ifidx]->net)
2775                         wl_iw_event(dhd->iflist[*ifidx]->net, event, *data);
2776         }
2777 #endif                          /* defined(CONFIG_WIRELESS_EXT)  */
2778
2779         if (IS_CFG80211_FAVORITE()) {
2780                 ASSERT(dhd->iflist[*ifidx] != NULL);
2781                 ASSERT(dhd->iflist[*ifidx]->net != NULL);
2782                 if (dhd->iflist[*ifidx]->net)
2783                         wl_cfg80211_event(dhd->iflist[*ifidx]->net, event,
2784                                           *data);
2785         }
2786
2787         return bcmerror;
2788 }
2789
2790 /* send up locally generated event */
2791 void dhd_sendup_event(dhd_pub_t *dhdp, wl_event_msg_t *event, void *data)
2792 {
2793         switch (ntoh32(event->event_type)) {
2794         default:
2795                 break;
2796         }
2797 }
2798
2799 void dhd_wait_for_event(dhd_pub_t *dhd, bool *lockvar)
2800 {
2801         struct dhd_info *dhdinfo = dhd->info;
2802         dhd_os_sdunlock(dhd);
2803         wait_event_interruptible_timeout(dhdinfo->ctrl_wait,
2804                                          (*lockvar == false), HZ * 2);
2805         dhd_os_sdlock(dhd);
2806         return;
2807 }
2808
2809 void dhd_wait_event_wakeup(dhd_pub_t *dhd)
2810 {
2811         struct dhd_info *dhdinfo = dhd->info;
2812         if (waitqueue_active(&dhdinfo->ctrl_wait))
2813                 wake_up_interruptible(&dhdinfo->ctrl_wait);
2814         return;
2815 }
2816
2817 int dhd_dev_reset(struct net_device *dev, u8 flag)
2818 {
2819         dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2820
2821         /* Turning off watchdog */
2822         if (flag)
2823                 dhd_os_wd_timer(&dhd->pub, 0);
2824
2825         dhd_bus_devreset(&dhd->pub, flag);
2826
2827         /* Turning on watchdog back */
2828         if (!flag)
2829                 dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
2830         DHD_ERROR(("%s:  WLAN OFF DONE\n", __func__));
2831
2832         return 1;
2833 }
2834
2835 int net_os_set_suspend_disable(struct net_device *dev, int val)
2836 {
2837         dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2838         int ret = 0;
2839
2840         if (dhd) {
2841                 ret = dhd->pub.suspend_disable_flag;
2842                 dhd->pub.suspend_disable_flag = val;
2843         }
2844         return ret;
2845 }
2846
2847 int net_os_set_suspend(struct net_device *dev, int val)
2848 {
2849         int ret = 0;
2850 #if defined(CONFIG_HAS_EARLYSUSPEND)
2851         dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2852
2853         if (dhd) {
2854                 dhd_os_proto_block(&dhd->pub);
2855                 ret = dhd_set_suspend(val, &dhd->pub);
2856                 dhd_os_proto_unblock(&dhd->pub);
2857         }
2858 #endif          /* defined(CONFIG_HAS_EARLYSUSPEND) */
2859         return ret;
2860 }
2861
2862 int net_os_set_dtim_skip(struct net_device *dev, int val)
2863 {
2864         dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2865
2866         if (dhd)
2867                 dhd->pub.dtim_skip = val;
2868
2869         return 0;
2870 }
2871
2872 int net_os_set_packet_filter(struct net_device *dev, int val)
2873 {
2874         dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2875         int ret = 0;
2876
2877         /* Packet filtering is set only if we still in early-suspend and
2878          * we need either to turn it ON or turn it OFF
2879          * We can always turn it OFF in case of early-suspend, but we turn it
2880          * back ON only if suspend_disable_flag was not set
2881          */
2882         if (dhd && dhd->pub.up) {
2883                 dhd_os_proto_block(&dhd->pub);
2884                 if (dhd->pub.in_suspend) {
2885                         if (!val || (val && !dhd->pub.suspend_disable_flag))
2886                                 dhd_set_packet_filter(val, &dhd->pub);
2887                 }
2888                 dhd_os_proto_unblock(&dhd->pub);
2889         }
2890         return ret;
2891 }
2892
2893 void dhd_dev_init_ioctl(struct net_device *dev)
2894 {
2895         dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2896
2897         dhd_preinit_ioctls(&dhd->pub);
2898 }
2899
2900 #ifdef PNO_SUPPORT
2901 /* Linux wrapper to call common dhd_pno_clean */
2902 int dhd_dev_pno_reset(struct net_device *dev)
2903 {
2904         dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2905
2906         return dhd_pno_clean(&dhd->pub);
2907 }
2908
2909 /* Linux wrapper to call common dhd_pno_enable */
2910 int dhd_dev_pno_enable(struct net_device *dev, int pfn_enabled)
2911 {
2912         dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2913
2914         return dhd_pno_enable(&dhd->pub, pfn_enabled);
2915 }
2916
2917 /* Linux wrapper to call common dhd_pno_set */
2918 int
2919 dhd_dev_pno_set(struct net_device *dev, wlc_ssid_t *ssids_local, int nssid,
2920                 unsigned char scan_fr)
2921 {
2922         dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2923
2924         return dhd_pno_set(&dhd->pub, ssids_local, nssid, scan_fr);
2925 }
2926
2927 /* Linux wrapper to get  pno status */
2928 int dhd_dev_get_pno_status(struct net_device *dev)
2929 {
2930         dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2931
2932         return dhd_pno_get_status(&dhd->pub);
2933 }
2934
2935 #endif                          /* PNO_SUPPORT */
2936
2937 static int dhd_get_pend_8021x_cnt(dhd_info_t *dhd)
2938 {
2939         return atomic_read(&dhd->pend_8021x_cnt);
2940 }
2941
2942 #define MAX_WAIT_FOR_8021X_TX   10
2943
2944 int dhd_wait_pend8021x(struct net_device *dev)
2945 {
2946         dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2947         int timeout = 10 * HZ / 1000;
2948         int ntimes = MAX_WAIT_FOR_8021X_TX;
2949         int pend = dhd_get_pend_8021x_cnt(dhd);
2950
2951         while (ntimes && pend) {
2952                 if (pend) {
2953                         set_current_state(TASK_INTERRUPTIBLE);
2954                         schedule_timeout(timeout);
2955                         set_current_state(TASK_RUNNING);
2956                         ntimes--;
2957                 }
2958                 pend = dhd_get_pend_8021x_cnt(dhd);
2959         }
2960         return pend;
2961 }
2962
2963 #ifdef DHD_DEBUG
2964 int write_to_file(dhd_pub_t *dhd, u8 *buf, int size)
2965 {
2966         int ret = 0;
2967         struct file *fp;
2968         mm_segment_t old_fs;
2969         loff_t pos = 0;
2970
2971         /* change to KERNEL_DS address limit */
2972         old_fs = get_fs();
2973         set_fs(KERNEL_DS);
2974
2975         /* open file to write */
2976         fp = filp_open("/tmp/mem_dump", O_WRONLY | O_CREAT, 0640);
2977         if (!fp) {
2978                 printf("%s: open file error\n", __func__);
2979                 ret = -1;
2980                 goto exit;
2981         }
2982
2983         /* Write buf to file */
2984         fp->f_op->write(fp, buf, size, &pos);
2985
2986 exit:
2987         /* free buf before return */
2988         kfree(buf);
2989         /* close file before return */
2990         if (fp)
2991                 filp_close(fp, current->files);
2992         /* restore previous address limit */
2993         set_fs(old_fs);
2994
2995         return ret;
2996 }
2997 #endif                          /* DHD_DEBUG */