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Staging: brcmfmac: Fix MAC header lookup on 64-bit architectures
[linux-2.6/cjktty.git] / drivers / staging / brcm80211 / brcmfmac / dhd_linux.c
blobd7ad3e44dd78890b39a1f5c9b63459ea33166f44
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, void *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 (PKTLEN(pktbuf) >= ETHER_ADDR_LEN) {
1032 u8 *pktdata = (u8 *) PKTDATA(pktbuf);
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 int dhd_start_xmit(struct sk_buff *skb, struct net_device *net)
1056 {
1057 int ret;
1058 void *pktbuf;
1059 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1060 int ifidx;
1061
1062 DHD_TRACE(("%s: Enter\n", __func__));
1063
1064 /* Reject if down */
1065 if (!dhd->pub.up || (dhd->pub.busstate == DHD_BUS_DOWN)) {
1066 DHD_ERROR(("%s: xmit rejected pub.up=%d busstate=%d\n",
1067 __func__, dhd->pub.up, dhd->pub.busstate));
1068 netif_stop_queue(net);
1069 return -ENODEV;
1070 }
1071
1072 ifidx = dhd_net2idx(dhd, net);
1073 if (ifidx == DHD_BAD_IF) {
1074 DHD_ERROR(("%s: bad ifidx %d\n", __func__, ifidx));
1075 netif_stop_queue(net);
1076 return -ENODEV;
1077 }
1078
1079 /* Make sure there's enough room for any header */
1080 if (skb_headroom(skb) < dhd->pub.hdrlen) {
1081 struct sk_buff *skb2;
1082
1083 DHD_INFO(("%s: insufficient headroom\n",
1084 dhd_ifname(&dhd->pub, ifidx)));
1085 dhd->pub.tx_realloc++;
1086 skb2 = skb_realloc_headroom(skb, dhd->pub.hdrlen);
1087 dev_kfree_skb(skb);
1088 skb = skb2;
1089 if (skb == NULL) {
1090 DHD_ERROR(("%s: skb_realloc_headroom failed\n",
1091 dhd_ifname(&dhd->pub, ifidx)));
1092 ret = -ENOMEM;
1093 goto done;
1094 }
1095 }
1096
1097 /* Convert to packet */
1098 pktbuf = PKTFRMNATIVE(dhd->pub.osh, skb);
1099 if (!pktbuf) {
1100 DHD_ERROR(("%s: PKTFRMNATIVE failed\n",
1101 dhd_ifname(&dhd->pub, ifidx)));
1102 dev_kfree_skb_any(skb);
1103 ret = -ENOMEM;
1104 goto done;
1105 }
1106
1107 ret = dhd_sendpkt(&dhd->pub, ifidx, pktbuf);
1108
1109 done:
1110 if (ret)
1111 dhd->pub.dstats.tx_dropped++;
1112 else
1113 dhd->pub.tx_packets++;
1114
1115 /* Return ok: we always eat the packet */
1116 return 0;
1117 }
1118
1119 void dhd_txflowcontrol(dhd_pub_t *dhdp, int ifidx, bool state)
1120 {
1121 struct net_device *net;
1122 dhd_info_t *dhd = dhdp->info;
1123
1124 DHD_TRACE(("%s: Enter\n", __func__));
1125
1126 dhdp->txoff = state;
1127 ASSERT(dhd && dhd->iflist[ifidx]);
1128 net = dhd->iflist[ifidx]->net;
1129 if (state == ON)
1130 netif_stop_queue(net);
1131 else
1132 netif_wake_queue(net);
1133 }
1134
1135 void dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, void *pktbuf, int numpkt)
1136 {
1137 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
1138 struct sk_buff *skb;
1139 unsigned char *eth;
1140 uint len;
1141 void *data, *pnext, *save_pktbuf;
1142 int i;
1143 dhd_if_t *ifp;
1144 wl_event_msg_t event;
1145
1146 DHD_TRACE(("%s: Enter\n", __func__));
1147
1148 save_pktbuf = pktbuf;
1149
1150 for (i = 0; pktbuf && i < numpkt; i++, pktbuf = pnext) {
1151
1152 pnext = PKTNEXT(pktbuf);
1153 PKTSETNEXT(pktbuf, NULL);
1154
1155 skb = PKTTONATIVE(dhdp->osh, pktbuf);
1156
1157 /* Get the protocol, maintain skb around eth_type_trans()
1158 * The main reason for this hack is for the limitation of
1159 * Linux 2.4 where 'eth_type_trans' uses the
1160 * 'net->hard_header_len'
1161 * to perform skb_pull inside vs ETH_HLEN. Since to avoid
1162 * coping of the packet coming from the network stack to add
1163 * BDC, Hardware header etc, during network interface
1164 * registration
1165 * we set the 'net->hard_header_len' to ETH_HLEN + extra space
1166 * required
1167 * for BDC, Hardware header etc. and not just the ETH_HLEN
1168 */
1169 eth = skb->data;
1170 len = skb->len;
1171
1172 ifp = dhd->iflist[ifidx];
1173 if (ifp == NULL)
1174 ifp = dhd->iflist[0];
1175
1176 ASSERT(ifp);
1177 skb->dev = ifp->net;
1178 skb->protocol = eth_type_trans(skb, skb->dev);
1179
1180 if (skb->pkt_type == PACKET_MULTICAST)
1181 dhd->pub.rx_multicast++;
1182
1183 skb->data = eth;
1184 skb->len = len;
1185
1186 /* Strip header, count, deliver upward */
1187 skb_pull(skb, ETH_HLEN);
1188
1189 /* Process special event packets and then discard them */
1190 if (ntoh16(skb->protocol) == ETHER_TYPE_BRCM)
1191 dhd_wl_host_event(dhd, &ifidx,
1192 skb_mac_header(skb),
1193 &event, &data);
1194
1195 ASSERT(ifidx < DHD_MAX_IFS && dhd->iflist[ifidx]);
1196 if (dhd->iflist[ifidx] && !dhd->iflist[ifidx]->state)
1197 ifp = dhd->iflist[ifidx];
1198
1199 if (ifp->net)
1200 ifp->net->last_rx = jiffies;
1201
1202 dhdp->dstats.rx_bytes += skb->len;
1203 dhdp->rx_packets++; /* Local count */
1204
1205 if (in_interrupt()) {
1206 netif_rx(skb);
1207 } else {
1208 /* If the receive is not processed inside an ISR,
1209 * the softirqd must be woken explicitly to service
1210 * the NET_RX_SOFTIRQ. In 2.6 kernels, this is handled
1211 * by netif_rx_ni(), but in earlier kernels, we need
1212 * to do it manually.
1213 */
1214 netif_rx_ni(skb);
1215 }
1216 }
1217 }
1218
1219 void dhd_event(struct dhd_info *dhd, char *evpkt, int evlen, int ifidx)
1220 {
1221 /* Linux version has nothing to do */
1222 return;
1223 }
1224
1225 void dhd_txcomplete(dhd_pub_t *dhdp, void *txp, bool success)
1226 {
1227 uint ifidx;
1228 dhd_info_t *dhd = (dhd_info_t *) (dhdp->info);
1229 struct ether_header *eh;
1230 u16 type;
1231
1232 dhd_prot_hdrpull(dhdp, &ifidx, txp);
1233
1234 eh = (struct ether_header *)PKTDATA(txp);
1235 type = ntoh16(eh->ether_type);
1236
1237 if (type == ETHER_TYPE_802_1X)
1238 atomic_dec(&dhd->pend_8021x_cnt);
1239
1240 }
1241
1242 static struct net_device_stats *dhd_get_stats(struct net_device *net)
1243 {
1244 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1245 dhd_if_t *ifp;
1246 int ifidx;
1247
1248 DHD_TRACE(("%s: Enter\n", __func__));
1249
1250 ifidx = dhd_net2idx(dhd, net);
1251 if (ifidx == DHD_BAD_IF)
1252 return NULL;
1253
1254 ifp = dhd->iflist[ifidx];
1255 ASSERT(dhd && ifp);
1256
1257 if (dhd->pub.up) {
1258 /* Use the protocol to get dongle stats */
1259 dhd_prot_dstats(&dhd->pub);
1260 }
1261
1262 /* Copy dongle stats to net device stats */
1263 ifp->stats.rx_packets = dhd->pub.dstats.rx_packets;
1264 ifp->stats.tx_packets = dhd->pub.dstats.tx_packets;
1265 ifp->stats.rx_bytes = dhd->pub.dstats.rx_bytes;
1266 ifp->stats.tx_bytes = dhd->pub.dstats.tx_bytes;
1267 ifp->stats.rx_errors = dhd->pub.dstats.rx_errors;
1268 ifp->stats.tx_errors = dhd->pub.dstats.tx_errors;
1269 ifp->stats.rx_dropped = dhd->pub.dstats.rx_dropped;
1270 ifp->stats.tx_dropped = dhd->pub.dstats.tx_dropped;
1271 ifp->stats.multicast = dhd->pub.dstats.multicast;
1272
1273 return &ifp->stats;
1274 }
1275
1276 static int dhd_watchdog_thread(void *data)
1277 {
1278 dhd_info_t *dhd = (dhd_info_t *) data;
1279 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_WATCHDOG, "dhd_watchdog_thread");
1280
1281 /* This thread doesn't need any user-level access,
1282 * so get rid of all our resources
1283 */
1284 #ifdef DHD_SCHED
1285 if (dhd_watchdog_prio > 0) {
1286 struct sched_param param;
1287 param.sched_priority = (dhd_watchdog_prio < MAX_RT_PRIO) ?
1288 dhd_watchdog_prio : (MAX_RT_PRIO - 1);
1289 setScheduler(current, SCHED_FIFO, &param);
1290 }
1291 #endif /* DHD_SCHED */
1292
1293 allow_signal(SIGTERM);
1294 /* Run until signal received */
1295 while (1) {
1296 if (kthread_should_stop())
1297 break;
1298 if (down_interruptible(&dhd->watchdog_sem) == 0) {
1299 if (dhd->pub.dongle_reset == false) {
1300 WAKE_LOCK(&dhd->pub, WAKE_LOCK_WATCHDOG);
1301 /* Call the bus module watchdog */
1302 dhd_bus_watchdog(&dhd->pub);
1303 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_WATCHDOG);
1304 }
1305 /* Count the tick for reference */
1306 dhd->pub.tickcnt++;
1307 } else
1308 break;
1309 }
1310
1311 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_WATCHDOG);
1312 return 0;
1313 }
1314
1315 static void dhd_watchdog(unsigned long data)
1316 {
1317 dhd_info_t *dhd = (dhd_info_t *) data;
1318
1319 if (dhd->watchdog_tsk) {
1320 up(&dhd->watchdog_sem);
1321
1322 /* Reschedule the watchdog */
1323 if (dhd->wd_timer_valid) {
1324 mod_timer(&dhd->timer,
1325 jiffies + dhd_watchdog_ms * HZ / 1000);
1326 }
1327 return;
1328 }
1329
1330 /* Call the bus module watchdog */
1331 dhd_bus_watchdog(&dhd->pub);
1332
1333 /* Count the tick for reference */
1334 dhd->pub.tickcnt++;
1335
1336 /* Reschedule the watchdog */
1337 if (dhd->wd_timer_valid)
1338 mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000);
1339 }
1340
1341 static int dhd_dpc_thread(void *data)
1342 {
1343 dhd_info_t *dhd = (dhd_info_t *) data;
1344
1345 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_DPC, "dhd_dpc_thread");
1346 /* This thread doesn't need any user-level access,
1347 * so get rid of all our resources
1348 */
1349 #ifdef DHD_SCHED
1350 if (dhd_dpc_prio > 0) {
1351 struct sched_param param;
1352 param.sched_priority =
1353 (dhd_dpc_prio <
1354 MAX_RT_PRIO) ? dhd_dpc_prio : (MAX_RT_PRIO - 1);
1355 setScheduler(current, SCHED_FIFO, &param);
1356 }
1357 #endif /* DHD_SCHED */
1358
1359 allow_signal(SIGTERM);
1360 /* Run until signal received */
1361 while (1) {
1362 if (kthread_should_stop())
1363 break;
1364 if (down_interruptible(&dhd->dpc_sem) == 0) {
1365 /* Call bus dpc unless it indicated down
1366 (then clean stop) */
1367 if (dhd->pub.busstate != DHD_BUS_DOWN) {
1368 WAKE_LOCK(&dhd->pub, WAKE_LOCK_DPC);
1369 if (dhd_bus_dpc(dhd->pub.bus)) {
1370 up(&dhd->dpc_sem);
1371 WAKE_LOCK_TIMEOUT(&dhd->pub,
1372 WAKE_LOCK_TMOUT, 25);
1373 }
1374 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_DPC);
1375 } else {
1376 dhd_bus_stop(dhd->pub.bus, true);
1377 }
1378 } else
1379 break;
1380 }
1381
1382 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_DPC);
1383 return 0;
1384 }
1385
1386 static void dhd_dpc(unsigned long data)
1387 {
1388 dhd_info_t *dhd;
1389
1390 dhd = (dhd_info_t *) data;
1391
1392 /* Call bus dpc unless it indicated down (then clean stop) */
1393 if (dhd->pub.busstate != DHD_BUS_DOWN) {
1394 if (dhd_bus_dpc(dhd->pub.bus))
1395 tasklet_schedule(&dhd->tasklet);
1396 } else {
1397 dhd_bus_stop(dhd->pub.bus, true);
1398 }
1399 }
1400
1401 void dhd_sched_dpc(dhd_pub_t *dhdp)
1402 {
1403 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
1404
1405 if (dhd->dpc_tsk) {
1406 up(&dhd->dpc_sem);
1407 return;
1408 }
1409
1410 tasklet_schedule(&dhd->tasklet);
1411 }
1412
1413 #ifdef TOE
1414 /* Retrieve current toe component enables, which are kept
1415 as a bitmap in toe_ol iovar */
1416 static int dhd_toe_get(dhd_info_t *dhd, int ifidx, u32 *toe_ol)
1417 {
1418 wl_ioctl_t ioc;
1419 char buf[32];
1420 int ret;
1421
1422 memset(&ioc, 0, sizeof(ioc));
1423
1424 ioc.cmd = WLC_GET_VAR;
1425 ioc.buf = buf;
1426 ioc.len = (uint) sizeof(buf);
1427 ioc.set = false;
1428
1429 strcpy(buf, "toe_ol");
1430 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1431 if (ret < 0) {
1432 /* Check for older dongle image that doesn't support toe_ol */
1433 if (ret == -EIO) {
1434 DHD_ERROR(("%s: toe not supported by device\n",
1435 dhd_ifname(&dhd->pub, ifidx)));
1436 return -EOPNOTSUPP;
1437 }
1438
1439 DHD_INFO(("%s: could not get toe_ol: ret=%d\n",
1440 dhd_ifname(&dhd->pub, ifidx), ret));
1441 return ret;
1442 }
1443
1444 memcpy(toe_ol, buf, sizeof(u32));
1445 return 0;
1446 }
1447
1448 /* Set current toe component enables in toe_ol iovar,
1449 and set toe global enable iovar */
1450 static int dhd_toe_set(dhd_info_t *dhd, int ifidx, u32 toe_ol)
1451 {
1452 wl_ioctl_t ioc;
1453 char buf[32];
1454 int toe, ret;
1455
1456 memset(&ioc, 0, sizeof(ioc));
1457
1458 ioc.cmd = WLC_SET_VAR;
1459 ioc.buf = buf;
1460 ioc.len = (uint) sizeof(buf);
1461 ioc.set = true;
1462
1463 /* Set toe_ol as requested */
1464
1465 strcpy(buf, "toe_ol");
1466 memcpy(&buf[sizeof("toe_ol")], &toe_ol, sizeof(u32));
1467
1468 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1469 if (ret < 0) {
1470 DHD_ERROR(("%s: could not set toe_ol: ret=%d\n",
1471 dhd_ifname(&dhd->pub, ifidx), ret));
1472 return ret;
1473 }
1474
1475 /* Enable toe globally only if any components are enabled. */
1476
1477 toe = (toe_ol != 0);
1478
1479 strcpy(buf, "toe");
1480 memcpy(&buf[sizeof("toe")], &toe, sizeof(u32));
1481
1482 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1483 if (ret < 0) {
1484 DHD_ERROR(("%s: could not set toe: ret=%d\n",
1485 dhd_ifname(&dhd->pub, ifidx), ret));
1486 return ret;
1487 }
1488
1489 return 0;
1490 }
1491 #endif /* TOE */
1492
1493 static void dhd_ethtool_get_drvinfo(struct net_device *net,
1494 struct ethtool_drvinfo *info)
1495 {
1496 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1497
1498 sprintf(info->driver, DRV_MODULE_NAME);
1499 sprintf(info->version, "%lu", dhd->pub.drv_version);
1500 sprintf(info->fw_version, "%s", wl_cfg80211_get_fwname());
1501 sprintf(info->bus_info, "%s", dev_name(&wl_cfg80211_get_sdio_func()->dev));
1502 }
1503
1504 struct ethtool_ops dhd_ethtool_ops = {
1505 .get_drvinfo = dhd_ethtool_get_drvinfo
1506 };
1507
1508 static int dhd_ethtool(dhd_info_t *dhd, void *uaddr)
1509 {
1510 struct ethtool_drvinfo info;
1511 char drvname[sizeof(info.driver)];
1512 u32 cmd;
1513 #ifdef TOE
1514 struct ethtool_value edata;
1515 u32 toe_cmpnt, csum_dir;
1516 int ret;
1517 #endif
1518
1519 DHD_TRACE(("%s: Enter\n", __func__));
1520
1521 /* all ethtool calls start with a cmd word */
1522 if (copy_from_user(&cmd, uaddr, sizeof(u32)))
1523 return -EFAULT;
1524
1525 switch (cmd) {
1526 case ETHTOOL_GDRVINFO:
1527 /* Copy out any request driver name */
1528 if (copy_from_user(&info, uaddr, sizeof(info)))
1529 return -EFAULT;
1530 strncpy(drvname, info.driver, sizeof(info.driver));
1531 drvname[sizeof(info.driver) - 1] = '\0';
1532
1533 /* clear struct for return */
1534 memset(&info, 0, sizeof(info));
1535 info.cmd = cmd;
1536
1537 /* if dhd requested, identify ourselves */
1538 if (strcmp(drvname, "?dhd") == 0) {
1539 sprintf(info.driver, "dhd");
1540 strcpy(info.version, EPI_VERSION_STR);
1541 }
1542
1543 /* otherwise, require dongle to be up */
1544 else if (!dhd->pub.up) {
1545 DHD_ERROR(("%s: dongle is not up\n", __func__));
1546 return -ENODEV;
1547 }
1548
1549 /* finally, report dongle driver type */
1550 else if (dhd->pub.iswl)
1551 sprintf(info.driver, "wl");
1552 else
1553 sprintf(info.driver, "xx");
1554
1555 sprintf(info.version, "%lu", dhd->pub.drv_version);
1556 if (copy_to_user(uaddr, &info, sizeof(info)))
1557 return -EFAULT;
1558 DHD_CTL(("%s: given %*s, returning %s\n", __func__,
1559 (int)sizeof(drvname), drvname, info.driver));
1560 break;
1561
1562 #ifdef TOE
1563 /* Get toe offload components from dongle */
1564 case ETHTOOL_GRXCSUM:
1565 case ETHTOOL_GTXCSUM:
1566 ret = dhd_toe_get(dhd, 0, &toe_cmpnt);
1567 if (ret < 0)
1568 return ret;
1569
1570 csum_dir =
1571 (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
1572
1573 edata.cmd = cmd;
1574 edata.data = (toe_cmpnt & csum_dir) ? 1 : 0;
1575
1576 if (copy_to_user(uaddr, &edata, sizeof(edata)))
1577 return -EFAULT;
1578 break;
1579
1580 /* Set toe offload components in dongle */
1581 case ETHTOOL_SRXCSUM:
1582 case ETHTOOL_STXCSUM:
1583 if (copy_from_user(&edata, uaddr, sizeof(edata)))
1584 return -EFAULT;
1585
1586 /* Read the current settings, update and write back */
1587 ret = dhd_toe_get(dhd, 0, &toe_cmpnt);
1588 if (ret < 0)
1589 return ret;
1590
1591 csum_dir =
1592 (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
1593
1594 if (edata.data != 0)
1595 toe_cmpnt |= csum_dir;
1596 else
1597 toe_cmpnt &= ~csum_dir;
1598
1599 ret = dhd_toe_set(dhd, 0, toe_cmpnt);
1600 if (ret < 0)
1601 return ret;
1602
1603 /* If setting TX checksum mode, tell Linux the new mode */
1604 if (cmd == ETHTOOL_STXCSUM) {
1605 if (edata.data)
1606 dhd->iflist[0]->net->features |=
1607 NETIF_F_IP_CSUM;
1608 else
1609 dhd->iflist[0]->net->features &=
1610 ~NETIF_F_IP_CSUM;
1611 }
1612
1613 break;
1614 #endif /* TOE */
1615
1616 default:
1617 return -EOPNOTSUPP;
1618 }
1619
1620 return 0;
1621 }
1622
1623 static s16 linuxbcmerrormap[] = { 0, /* 0 */
1624 -EINVAL, /* BCME_ERROR */
1625 -EINVAL, /* BCME_BADARG */
1626 -EINVAL, /* BCME_BADOPTION */
1627 -EINVAL, /* BCME_NOTUP */
1628 -EINVAL, /* BCME_NOTDOWN */
1629 -EINVAL, /* BCME_NOTAP */
1630 -EINVAL, /* BCME_NOTSTA */
1631 -EINVAL, /* BCME_BADKEYIDX */
1632 -EINVAL, /* BCME_RADIOOFF */
1633 -EINVAL, /* BCME_NOTBANDLOCKED */
1634 -EINVAL, /* BCME_NOCLK */
1635 -EINVAL, /* BCME_BADRATESET */
1636 -EINVAL, /* BCME_BADBAND */
1637 -E2BIG, /* BCME_BUFTOOSHORT */
1638 -E2BIG, /* BCME_BUFTOOLONG */
1639 -EBUSY, /* BCME_BUSY */
1640 -EINVAL, /* BCME_NOTASSOCIATED */
1641 -EINVAL, /* BCME_BADSSIDLEN */
1642 -EINVAL, /* BCME_OUTOFRANGECHAN */
1643 -EINVAL, /* BCME_BADCHAN */
1644 -EFAULT, /* BCME_BADADDR */
1645 -ENOMEM, /* BCME_NORESOURCE */
1646 -EOPNOTSUPP, /* BCME_UNSUPPORTED */
1647 -EMSGSIZE, /* BCME_BADLENGTH */
1648 -EINVAL, /* BCME_NOTREADY */
1649 -EPERM, /* BCME_NOTPERMITTED */
1650 -ENOMEM, /* BCME_NOMEM */
1651 -EINVAL, /* BCME_ASSOCIATED */
1652 -ERANGE, /* BCME_RANGE */
1653 -EINVAL, /* BCME_NOTFOUND */
1654 -EINVAL, /* BCME_WME_NOT_ENABLED */
1655 -EINVAL, /* BCME_TSPEC_NOTFOUND */
1656 -EINVAL, /* BCME_ACM_NOTSUPPORTED */
1657 -EINVAL, /* BCME_NOT_WME_ASSOCIATION */
1658 -EIO, /* BCME_SDIO_ERROR */
1659 -ENODEV, /* BCME_DONGLE_DOWN */
1660 -EINVAL, /* BCME_VERSION */
1661 -EIO, /* BCME_TXFAIL */
1662 -EIO, /* BCME_RXFAIL */
1663 -EINVAL, /* BCME_NODEVICE */
1664 -EINVAL, /* BCME_NMODE_DISABLED */
1665 -ENODATA, /* BCME_NONRESIDENT */
1666 };
1667
1668 static int dhd_ioctl_entry(struct net_device *net, struct ifreq *ifr, int cmd)
1669 {
1670 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1671 dhd_ioctl_t ioc;
1672 int bcmerror = 0;
1673 int buflen = 0;
1674 void *buf = NULL;
1675 uint driver = 0;
1676 int ifidx;
1677 bool is_set_key_cmd;
1678
1679 ifidx = dhd_net2idx(dhd, net);
1680 DHD_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __func__, ifidx, cmd));
1681
1682 if (ifidx == DHD_BAD_IF)
1683 return -1;
1684
1685 #if defined(CONFIG_WIRELESS_EXT)
1686 /* linux wireless extensions */
1687 if ((cmd >= SIOCIWFIRST) && (cmd <= SIOCIWLAST)) {
1688 /* may recurse, do NOT lock */
1689 return wl_iw_ioctl(net, ifr, cmd);
1690 }
1691 #endif /* defined(CONFIG_WIRELESS_EXT) */
1692
1693 if (cmd == SIOCETHTOOL)
1694 return dhd_ethtool(dhd, (void *)ifr->ifr_data);
1695
1696 if (cmd != SIOCDEVPRIVATE)
1697 return -EOPNOTSUPP;
1698
1699 memset(&ioc, 0, sizeof(ioc));
1700
1701 /* Copy the ioc control structure part of ioctl request */
1702 if (copy_from_user(&ioc, ifr->ifr_data, sizeof(wl_ioctl_t))) {
1703 bcmerror = -BCME_BADADDR;
1704 goto done;
1705 }
1706
1707 /* Copy out any buffer passed */
1708 if (ioc.buf) {
1709 buflen = min_t(int, ioc.len, DHD_IOCTL_MAXLEN);
1710 /* optimization for direct ioctl calls from kernel */
1711 /*
1712 if (segment_eq(get_fs(), KERNEL_DS)) {
1713 buf = ioc.buf;
1714 } else {
1715 */
1716 {
1717 buf = kmalloc(buflen, GFP_ATOMIC);
1718 if (!buf) {
1719 bcmerror = -BCME_NOMEM;
1720 goto done;
1721 }
1722 if (copy_from_user(buf, ioc.buf, buflen)) {
1723 bcmerror = -BCME_BADADDR;
1724 goto done;
1725 }
1726 }
1727 }
1728
1729 /* To differentiate between wl and dhd read 4 more byes */
1730 if ((copy_from_user(&driver, (char *)ifr->ifr_data + sizeof(wl_ioctl_t),
1731 sizeof(uint)) != 0)) {
1732 bcmerror = -BCME_BADADDR;
1733 goto done;
1734 }
1735
1736 if (!capable(CAP_NET_ADMIN)) {
1737 bcmerror = -BCME_EPERM;
1738 goto done;
1739 }
1740
1741 /* check for local dhd ioctl and handle it */
1742 if (driver == DHD_IOCTL_MAGIC) {
1743 bcmerror = dhd_ioctl((void *)&dhd->pub, &ioc, buf, buflen);
1744 if (bcmerror)
1745 dhd->pub.bcmerror = bcmerror;
1746 goto done;
1747 }
1748
1749 /* send to dongle (must be up, and wl) */
1750 if ((dhd->pub.busstate != DHD_BUS_DATA)) {
1751 DHD_ERROR(("%s DONGLE_DOWN,__func__\n", __func__));
1752 bcmerror = BCME_DONGLE_DOWN;
1753 goto done;
1754 }
1755
1756 if (!dhd->pub.iswl) {
1757 bcmerror = BCME_DONGLE_DOWN;
1758 goto done;
1759 }
1760
1761 /* Intercept WLC_SET_KEY IOCTL - serialize M4 send and set key IOCTL to
1762 * prevent M4 encryption.
1763 */
1764 is_set_key_cmd = ((ioc.cmd == WLC_SET_KEY) ||
1765 ((ioc.cmd == WLC_SET_VAR) &&
1766 !(strncmp("wsec_key", ioc.buf, 9))) ||
1767 ((ioc.cmd == WLC_SET_VAR) &&
1768 !(strncmp("bsscfg:wsec_key", ioc.buf, 15))));
1769 if (is_set_key_cmd)
1770 dhd_wait_pend8021x(net);
1771
1772 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_IOCTL, "dhd_ioctl_entry");
1773 WAKE_LOCK(&dhd->pub, WAKE_LOCK_IOCTL);
1774
1775 bcmerror =
1776 dhd_prot_ioctl(&dhd->pub, ifidx, (wl_ioctl_t *)&ioc, buf, buflen);
1777
1778 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_IOCTL);
1779 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_IOCTL);
1780 done:
1781 if (!bcmerror && buf && ioc.buf) {
1782 if (copy_to_user(ioc.buf, buf, buflen))
1783 bcmerror = -EFAULT;
1784 }
1785
1786 if (buf)
1787 kfree(buf);
1788
1789 if (bcmerror > 0)
1790 bcmerror = 0;
1791 else if (bcmerror < BCME_LAST)
1792 bcmerror = BCME_ERROR;
1793
1794 return linuxbcmerrormap[-bcmerror];
1795 }
1796
1797 static int dhd_stop(struct net_device *net)
1798 {
1799 #if !defined(IGNORE_ETH0_DOWN)
1800 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1801
1802 DHD_TRACE(("%s: Enter\n", __func__));
1803 if (IS_CFG80211_FAVORITE()) {
1804 wl_cfg80211_down();
1805 }
1806 if (dhd->pub.up == 0)
1807 return 0;
1808
1809 /* Set state and stop OS transmissions */
1810 dhd->pub.up = 0;
1811 netif_stop_queue(net);
1812 #else
1813 DHD_ERROR(("BYPASS %s:due to BRCM compilation : under investigation\n",
1814 __func__));
1815 #endif /* !defined(IGNORE_ETH0_DOWN) */
1816
1817 return 0;
1818 }
1819
1820 static int dhd_open(struct net_device *net)
1821 {
1822 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1823 #ifdef TOE
1824 u32 toe_ol;
1825 #endif
1826 int ifidx = dhd_net2idx(dhd, net);
1827 s32 ret = 0;
1828
1829 DHD_TRACE(("%s: ifidx %d\n", __func__, ifidx));
1830
1831 if (ifidx == 0) { /* do it only for primary eth0 */
1832
1833 /* try to bring up bus */
1834 ret = dhd_bus_start(&dhd->pub);
1835 if (ret != 0) {
1836 DHD_ERROR(("%s: failed with code %d\n", __func__, ret));
1837 return -1;
1838 }
1839 atomic_set(&dhd->pend_8021x_cnt, 0);
1840
1841 memcpy(net->dev_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
1842
1843 #ifdef TOE
1844 /* Get current TOE mode from dongle */
1845 if (dhd_toe_get(dhd, ifidx, &toe_ol) >= 0
1846 && (toe_ol & TOE_TX_CSUM_OL) != 0)
1847 dhd->iflist[ifidx]->net->features |= NETIF_F_IP_CSUM;
1848 else
1849 dhd->iflist[ifidx]->net->features &= ~NETIF_F_IP_CSUM;
1850 #endif
1851 }
1852 /* Allow transmit calls */
1853 netif_start_queue(net);
1854 dhd->pub.up = 1;
1855 if (IS_CFG80211_FAVORITE()) {
1856 if (unlikely(wl_cfg80211_up())) {
1857 DHD_ERROR(("%s: failed to bring up cfg80211\n",
1858 __func__));
1859 return -1;
1860 }
1861 }
1862
1863 return ret;
1864 }
1865
1866 osl_t *dhd_osl_attach(void *pdev, uint bustype)
1867 {
1868 return osl_attach(pdev, bustype);
1869 }
1870
1871 void dhd_osl_detach(osl_t *osh)
1872 {
1873 osl_detach(osh);
1874 }
1875
1876 int
1877 dhd_add_if(dhd_info_t *dhd, int ifidx, void *handle, char *name,
1878 u8 *mac_addr, u32 flags, u8 bssidx)
1879 {
1880 dhd_if_t *ifp;
1881
1882 DHD_TRACE(("%s: idx %d, handle->%p\n", __func__, ifidx, handle));
1883
1884 ASSERT(dhd && (ifidx < DHD_MAX_IFS));
1885
1886 ifp = dhd->iflist[ifidx];
1887 if (!ifp && !(ifp = kmalloc(sizeof(dhd_if_t), GFP_ATOMIC))) {
1888 DHD_ERROR(("%s: OOM - dhd_if_t\n", __func__));
1889 return -ENOMEM;
1890 }
1891
1892 memset(ifp, 0, sizeof(dhd_if_t));
1893 ifp->info = dhd;
1894 dhd->iflist[ifidx] = ifp;
1895 strlcpy(ifp->name, name, IFNAMSIZ);
1896 if (mac_addr != NULL)
1897 memcpy(&ifp->mac_addr, mac_addr, ETHER_ADDR_LEN);
1898
1899 if (handle == NULL) {
1900 ifp->state = WLC_E_IF_ADD;
1901 ifp->idx = ifidx;
1902 ASSERT(dhd->sysioc_tsk);
1903 up(&dhd->sysioc_sem);
1904 } else
1905 ifp->net = (struct net_device *)handle;
1906
1907 return 0;
1908 }
1909
1910 void dhd_del_if(dhd_info_t *dhd, int ifidx)
1911 {
1912 dhd_if_t *ifp;
1913
1914 DHD_TRACE(("%s: idx %d\n", __func__, ifidx));
1915
1916 ASSERT(dhd && ifidx && (ifidx < DHD_MAX_IFS));
1917 ifp = dhd->iflist[ifidx];
1918 if (!ifp) {
1919 DHD_ERROR(("%s: Null interface\n", __func__));
1920 return;
1921 }
1922
1923 ifp->state = WLC_E_IF_DEL;
1924 ifp->idx = ifidx;
1925 ASSERT(dhd->sysioc_tsk);
1926 up(&dhd->sysioc_sem);
1927 }
1928
1929 dhd_pub_t *dhd_attach(osl_t *osh, struct dhd_bus *bus, uint bus_hdrlen)
1930 {
1931 dhd_info_t *dhd = NULL;
1932 struct net_device *net;
1933
1934 DHD_TRACE(("%s: Enter\n", __func__));
1935 /* updates firmware nvram path if it was provided as module
1936 paramters */
1937 if ((firmware_path != NULL) && (firmware_path[0] != '\0'))
1938 strcpy(fw_path, firmware_path);
1939 if ((nvram_path != NULL) && (nvram_path[0] != '\0'))
1940 strcpy(nv_path, nvram_path);
1941
1942 /* Allocate etherdev, including space for private structure */
1943 net = alloc_etherdev(sizeof(dhd));
1944 if (!net) {
1945 DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
1946 goto fail;
1947 }
1948
1949 /* Allocate primary dhd_info */
1950 dhd = kmalloc(sizeof(dhd_info_t), GFP_ATOMIC);
1951 if (!dhd) {
1952 DHD_ERROR(("%s: OOM - alloc dhd_info\n", __func__));
1953 goto fail;
1954 }
1955
1956 memset(dhd, 0, sizeof(dhd_info_t));
1957
1958 /*
1959 * Save the dhd_info into the priv
1960 */
1961 memcpy(netdev_priv(net), &dhd, sizeof(dhd));
1962 dhd->pub.osh = osh;
1963
1964 /* Set network interface name if it was provided as module parameter */
1965 if (iface_name[0]) {
1966 int len;
1967 char ch;
1968 strncpy(net->name, iface_name, IFNAMSIZ);
1969 net->name[IFNAMSIZ - 1] = 0;
1970 len = strlen(net->name);
1971 ch = net->name[len - 1];
1972 if ((ch > '9' || ch < '0') && (len < IFNAMSIZ - 2))
1973 strcat(net->name, "%d");
1974 }
1975
1976 if (dhd_add_if(dhd, 0, (void *)net, net->name, NULL, 0, 0) ==
1977 DHD_BAD_IF)
1978 goto fail;
1979
1980 net->netdev_ops = NULL;
1981 sema_init(&dhd->proto_sem, 1);
1982 /* Initialize other structure content */
1983 init_waitqueue_head(&dhd->ioctl_resp_wait);
1984 init_waitqueue_head(&dhd->ctrl_wait);
1985
1986 /* Initialize the spinlocks */
1987 spin_lock_init(&dhd->sdlock);
1988 spin_lock_init(&dhd->txqlock);
1989
1990 /* Link to info module */
1991 dhd->pub.info = dhd;
1992
1993 /* Link to bus module */
1994 dhd->pub.bus = bus;
1995 dhd->pub.hdrlen = bus_hdrlen;
1996
1997 /* Attach and link in the protocol */
1998 if (dhd_prot_attach(&dhd->pub) != 0) {
1999 DHD_ERROR(("dhd_prot_attach failed\n"));
2000 goto fail;
2001 }
2002 #if defined(CONFIG_WIRELESS_EXT)
2003 /* Attach and link in the iw */
2004 if (wl_iw_attach(net, (void *)&dhd->pub) != 0) {
2005 DHD_ERROR(("wl_iw_attach failed\n"));
2006 goto fail;
2007 }
2008 #endif /* defined(CONFIG_WIRELESS_EXT) */
2009
2010 /* Attach and link in the cfg80211 */
2011 if (IS_CFG80211_FAVORITE()) {
2012 if (unlikely(wl_cfg80211_attach(net, &dhd->pub))) {
2013 DHD_ERROR(("wl_cfg80211_attach failed\n"));
2014 goto fail;
2015 }
2016 if (!NO_FW_REQ()) {
2017 strcpy(fw_path, wl_cfg80211_get_fwname());
2018 strcpy(nv_path, wl_cfg80211_get_nvramname());
2019 }
2020 wl_cfg80211_dbg_level(DBG_CFG80211_GET());
2021 }
2022
2023 /* Set up the watchdog timer */
2024 init_timer(&dhd->timer);
2025 dhd->timer.data = (unsigned long) dhd;
2026 dhd->timer.function = dhd_watchdog;
2027
2028 /* Initialize thread based operation and lock */
2029 sema_init(&dhd->sdsem, 1);
2030 if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0))
2031 dhd->threads_only = true;
2032 else
2033 dhd->threads_only = false;
2034
2035 if (dhd_dpc_prio >= 0) {
2036 /* Initialize watchdog thread */
2037 sema_init(&dhd->watchdog_sem, 0);
2038 dhd->watchdog_tsk = kthread_run(dhd_watchdog_thread, dhd,
2039 "dhd_watchdog");
2040 if (IS_ERR(dhd->watchdog_tsk)) {
2041 printk(KERN_WARNING
2042 "dhd_watchdog thread failed to start\n");
2043 dhd->watchdog_tsk = NULL;
2044 }
2045 } else {
2046 dhd->watchdog_tsk = NULL;
2047 }
2048
2049 /* Set up the bottom half handler */
2050 if (dhd_dpc_prio >= 0) {
2051 /* Initialize DPC thread */
2052 sema_init(&dhd->dpc_sem, 0);
2053 dhd->dpc_tsk = kthread_run(dhd_dpc_thread, dhd, "dhd_dpc");
2054 if (IS_ERR(dhd->dpc_tsk)) {
2055 printk(KERN_WARNING
2056 "dhd_dpc thread failed to start\n");
2057 dhd->dpc_tsk = NULL;
2058 }
2059 } else {
2060 tasklet_init(&dhd->tasklet, dhd_dpc, (unsigned long) dhd);
2061 dhd->dpc_tsk = NULL;
2062 }
2063
2064 if (dhd_sysioc) {
2065 sema_init(&dhd->sysioc_sem, 0);
2066 dhd->sysioc_tsk = kthread_run(_dhd_sysioc_thread, dhd,
2067 "_dhd_sysioc");
2068 if (IS_ERR(dhd->sysioc_tsk)) {
2069 printk(KERN_WARNING
2070 "_dhd_sysioc thread failed to start\n");
2071 dhd->sysioc_tsk = NULL;
2072 }
2073 } else
2074 dhd->sysioc_tsk = NULL;
2075
2076 /*
2077 * Save the dhd_info into the priv
2078 */
2079 memcpy(netdev_priv(net), &dhd, sizeof(dhd));
2080
2081 #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2082 g_bus = bus;
2083 #endif
2084 #if defined(CONFIG_PM_SLEEP)
2085 register_pm_notifier(&dhd_sleep_pm_notifier);
2086 #endif /* defined(CONFIG_PM_SLEEP) */
2087 /* && defined(DHD_GPL) */
2088 /* Init lock suspend to prevent kernel going to suspend */
2089 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_TMOUT, "dhd_wake_lock");
2090 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_LINK_DOWN_TMOUT,
2091 "dhd_wake_lock_link_dw_event");
2092 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_PNO_FIND_TMOUT,
2093 "dhd_wake_lock_link_pno_find_event");
2094 #ifdef CONFIG_HAS_EARLYSUSPEND
2095 dhd->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 20;
2096 dhd->early_suspend.suspend = dhd_early_suspend;
2097 dhd->early_suspend.resume = dhd_late_resume;
2098 register_early_suspend(&dhd->early_suspend);
2099 #endif
2100
2101 return &dhd->pub;
2102
2103 fail:
2104 if (net)
2105 free_netdev(net);
2106 if (dhd)
2107 dhd_detach(&dhd->pub);
2108
2109 return NULL;
2110 }
2111
2112 int dhd_bus_start(dhd_pub_t *dhdp)
2113 {
2114 int ret = -1;
2115 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
2116 #ifdef EMBEDDED_PLATFORM
2117 char iovbuf[WL_EVENTING_MASK_LEN + 12]; /* Room for "event_msgs" +
2118 '\0' + bitvec */
2119 #endif /* EMBEDDED_PLATFORM */
2120
2121 ASSERT(dhd);
2122
2123 DHD_TRACE(("%s:\n", __func__));
2124
2125 /* try to download image and nvram to the dongle */
2126 if (dhd->pub.busstate == DHD_BUS_DOWN) {
2127 WAKE_LOCK_INIT(dhdp, WAKE_LOCK_DOWNLOAD, "dhd_bus_start");
2128 WAKE_LOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2129 if (!(dhd_bus_download_firmware(dhd->pub.bus, dhd->pub.osh,
2130 fw_path, nv_path))) {
2131 DHD_ERROR(("%s: dhdsdio_probe_download failed. "
2132 "firmware = %s nvram = %s\n",
2133 __func__, fw_path, nv_path));
2134 WAKE_UNLOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2135 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_DOWNLOAD);
2136 return -1;
2137 }
2138
2139 WAKE_UNLOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2140 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_DOWNLOAD);
2141 }
2142
2143 /* Start the watchdog timer */
2144 dhd->pub.tickcnt = 0;
2145 dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
2146
2147 /* Bring up the bus */
2148 ret = dhd_bus_init(&dhd->pub, true);
2149 if (ret != 0) {
2150 DHD_ERROR(("%s, dhd_bus_init failed %d\n", __func__, ret));
2151 return ret;
2152 }
2153 #if defined(OOB_INTR_ONLY)
2154 /* Host registration for OOB interrupt */
2155 if (bcmsdh_register_oob_intr(dhdp)) {
2156 del_timer_sync(&dhd->timer);
2157 dhd->wd_timer_valid = false;
2158 DHD_ERROR(("%s Host failed to resgister for OOB\n", __func__));
2159 return -ENODEV;
2160 }
2161
2162 /* Enable oob at firmware */
2163 dhd_enable_oob_intr(dhd->pub.bus, true);
2164 #endif /* defined(OOB_INTR_ONLY) */
2165
2166 /* If bus is not ready, can't come up */
2167 if (dhd->pub.busstate != DHD_BUS_DATA) {
2168 del_timer_sync(&dhd->timer);
2169 dhd->wd_timer_valid = false;
2170 DHD_ERROR(("%s failed bus is not ready\n", __func__));
2171 return -ENODEV;
2172 }
2173 #ifdef EMBEDDED_PLATFORM
2174 bcm_mkiovar("event_msgs", dhdp->eventmask, WL_EVENTING_MASK_LEN, iovbuf,
2175 sizeof(iovbuf));
2176 dhdcdc_query_ioctl(dhdp, 0, WLC_GET_VAR, iovbuf, sizeof(iovbuf));
2177 bcopy(iovbuf, dhdp->eventmask, WL_EVENTING_MASK_LEN);
2178
2179 setbit(dhdp->eventmask, WLC_E_SET_SSID);
2180 setbit(dhdp->eventmask, WLC_E_PRUNE);
2181 setbit(dhdp->eventmask, WLC_E_AUTH);
2182 setbit(dhdp->eventmask, WLC_E_REASSOC);
2183 setbit(dhdp->eventmask, WLC_E_REASSOC_IND);
2184 setbit(dhdp->eventmask, WLC_E_DEAUTH_IND);
2185 setbit(dhdp->eventmask, WLC_E_DISASSOC_IND);
2186 setbit(dhdp->eventmask, WLC_E_DISASSOC);
2187 setbit(dhdp->eventmask, WLC_E_JOIN);
2188 setbit(dhdp->eventmask, WLC_E_ASSOC_IND);
2189 setbit(dhdp->eventmask, WLC_E_PSK_SUP);
2190 setbit(dhdp->eventmask, WLC_E_LINK);
2191 setbit(dhdp->eventmask, WLC_E_NDIS_LINK);
2192 setbit(dhdp->eventmask, WLC_E_MIC_ERROR);
2193 setbit(dhdp->eventmask, WLC_E_PMKID_CACHE);
2194 setbit(dhdp->eventmask, WLC_E_TXFAIL);
2195 setbit(dhdp->eventmask, WLC_E_JOIN_START);
2196 setbit(dhdp->eventmask, WLC_E_SCAN_COMPLETE);
2197 #ifdef PNO_SUPPORT
2198 setbit(dhdp->eventmask, WLC_E_PFN_NET_FOUND);
2199 #endif /* PNO_SUPPORT */
2200
2201 /* enable dongle roaming event */
2202
2203 dhdp->pktfilter_count = 1;
2204 /* Setup filter to allow only unicast */
2205 dhdp->pktfilter[0] = "100 0 0 0 0x01 0x00";
2206 #endif /* EMBEDDED_PLATFORM */
2207
2208 /* Bus is ready, do any protocol initialization */
2209 ret = dhd_prot_init(&dhd->pub);
2210 if (ret < 0)
2211 return ret;
2212
2213 return 0;
2214 }
2215
2216 int
2217 dhd_iovar(dhd_pub_t *pub, int ifidx, char *name, char *cmd_buf, uint cmd_len,
2218 int set)
2219 {
2220 char buf[strlen(name) + 1 + cmd_len];
2221 int len = sizeof(buf);
2222 wl_ioctl_t ioc;
2223 int ret;
2224
2225 len = bcm_mkiovar(name, cmd_buf, cmd_len, buf, len);
2226
2227 memset(&ioc, 0, sizeof(ioc));
2228
2229 ioc.cmd = set ? WLC_SET_VAR : WLC_GET_VAR;
2230 ioc.buf = buf;
2231 ioc.len = len;
2232 ioc.set = set;
2233
2234 ret = dhd_prot_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);
2235 if (!set && ret >= 0)
2236 memcpy(cmd_buf, buf, cmd_len);
2237
2238 return ret;
2239 }
2240
2241 static struct net_device_ops dhd_ops_pri = {
2242 .ndo_open = dhd_open,
2243 .ndo_stop = dhd_stop,
2244 .ndo_get_stats = dhd_get_stats,
2245 .ndo_do_ioctl = dhd_ioctl_entry,
2246 .ndo_start_xmit = dhd_start_xmit,
2247 .ndo_set_mac_address = dhd_set_mac_address,
2248 .ndo_set_multicast_list = dhd_set_multicast_list
2249 };
2250
2251 static struct net_device_ops dhd_ops_virt = {
2252 .ndo_get_stats = dhd_get_stats,
2253 .ndo_do_ioctl = dhd_ioctl_entry,
2254 .ndo_start_xmit = dhd_start_xmit,
2255 .ndo_set_mac_address = dhd_set_mac_address,
2256 .ndo_set_multicast_list = dhd_set_multicast_list
2257 };
2258
2259 int dhd_net_attach(dhd_pub_t *dhdp, int ifidx)
2260 {
2261 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
2262 struct net_device *net;
2263 u8 temp_addr[ETHER_ADDR_LEN] = {
2264 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33};
2265
2266 DHD_TRACE(("%s: ifidx %d\n", __func__, ifidx));
2267
2268 ASSERT(dhd && dhd->iflist[ifidx]);
2269
2270 net = dhd->iflist[ifidx]->net;
2271 ASSERT(net);
2272
2273 ASSERT(!net->netdev_ops);
2274 net->netdev_ops = &dhd_ops_virt;
2275
2276 net->netdev_ops = &dhd_ops_pri;
2277
2278 /*
2279 * We have to use the primary MAC for virtual interfaces
2280 */
2281 if (ifidx != 0) {
2282 /* for virtual interfaces use the primary MAC */
2283 memcpy(temp_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
2284
2285 }
2286
2287 if (ifidx == 1) {
2288 DHD_TRACE(("%s ACCESS POINT MAC: \n", __func__));
2289 /* ACCESSPOINT INTERFACE CASE */
2290 temp_addr[0] |= 0X02; /* set bit 2 ,
2291 - Locally Administered address */
2292
2293 }
2294 net->hard_header_len = ETH_HLEN + dhd->pub.hdrlen;
2295 net->ethtool_ops = &dhd_ethtool_ops;
2296
2297 #if defined(CONFIG_WIRELESS_EXT)
2298 if (!IS_CFG80211_FAVORITE()) {
2299 #if WIRELESS_EXT < 19
2300 net->get_wireless_stats = dhd_get_wireless_stats;
2301 #endif /* WIRELESS_EXT < 19 */
2302 #if WIRELESS_EXT > 12
2303 net->wireless_handlers =
2304 (struct iw_handler_def *)&wl_iw_handler_def;
2305 #endif /* WIRELESS_EXT > 12 */
2306 }
2307 #endif /* defined(CONFIG_WIRELESS_EXT) */
2308
2309 dhd->pub.rxsz = net->mtu + net->hard_header_len + dhd->pub.hdrlen;
2310
2311 memcpy(net->dev_addr, temp_addr, ETHER_ADDR_LEN);
2312
2313 if (register_netdev(net) != 0) {
2314 DHD_ERROR(("%s: couldn't register the net device\n",
2315 __func__));
2316 goto fail;
2317 }
2318
2319 printf("%s: Broadcom Dongle Host Driver\n", net->name);
2320
2321 return 0;
2322
2323 fail:
2324 net->netdev_ops = NULL;
2325 return BCME_ERROR;
2326 }
2327
2328 void dhd_bus_detach(dhd_pub_t *dhdp)
2329 {
2330 dhd_info_t *dhd;
2331
2332 DHD_TRACE(("%s: Enter\n", __func__));
2333
2334 if (dhdp) {
2335 dhd = (dhd_info_t *) dhdp->info;
2336 if (dhd) {
2337 /* Stop the protocol module */
2338 dhd_prot_stop(&dhd->pub);
2339
2340 /* Stop the bus module */
2341 dhd_bus_stop(dhd->pub.bus, true);
2342 #if defined(OOB_INTR_ONLY)
2343 bcmsdh_unregister_oob_intr();
2344 #endif /* defined(OOB_INTR_ONLY) */
2345
2346 /* Clear the watchdog timer */
2347 del_timer_sync(&dhd->timer);
2348 dhd->wd_timer_valid = false;
2349 }
2350 }
2351 }
2352
2353 void dhd_detach(dhd_pub_t *dhdp)
2354 {
2355 dhd_info_t *dhd;
2356
2357 DHD_TRACE(("%s: Enter\n", __func__));
2358
2359 if (dhdp) {
2360 dhd = (dhd_info_t *) dhdp->info;
2361 if (dhd) {
2362 dhd_if_t *ifp;
2363 int i;
2364
2365 #if defined(CONFIG_HAS_EARLYSUSPEND)
2366 if (dhd->early_suspend.suspend)
2367 unregister_early_suspend(&dhd->early_suspend);
2368 #endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
2369
2370 for (i = 1; i < DHD_MAX_IFS; i++)
2371 if (dhd->iflist[i])
2372 dhd_del_if(dhd, i);
2373
2374 ifp = dhd->iflist[0];
2375 ASSERT(ifp);
2376 if (ifp->net->netdev_ops == &dhd_ops_pri) {
2377 dhd_stop(ifp->net);
2378 unregister_netdev(ifp->net);
2379 }
2380
2381 if (dhd->watchdog_tsk) {
2382 send_sig(SIGTERM, dhd->watchdog_tsk, 1);
2383 kthread_stop(dhd->watchdog_tsk);
2384 dhd->watchdog_tsk = NULL;
2385 }
2386
2387 if (dhd->dpc_tsk) {
2388 send_sig(SIGTERM, dhd->dpc_tsk, 1);
2389 kthread_stop(dhd->dpc_tsk);
2390 dhd->dpc_tsk = NULL;
2391 } else
2392 tasklet_kill(&dhd->tasklet);
2393
2394 if (dhd->sysioc_tsk) {
2395 send_sig(SIGTERM, dhd->sysioc_tsk, 1);
2396 kthread_stop(dhd->sysioc_tsk);
2397 dhd->sysioc_tsk = NULL;
2398 }
2399
2400 dhd_bus_detach(dhdp);
2401
2402 if (dhdp->prot)
2403 dhd_prot_detach(dhdp);
2404
2405 #if defined(CONFIG_WIRELESS_EXT)
2406 wl_iw_detach();
2407 #endif /* (CONFIG_WIRELESS_EXT) */
2408
2409 if (IS_CFG80211_FAVORITE())
2410 wl_cfg80211_detach();
2411
2412 #if defined(CONFIG_PM_SLEEP)
2413 unregister_pm_notifier(&dhd_sleep_pm_notifier);
2414 #endif /* defined(CONFIG_PM_SLEEP) */
2415 /* && defined(DHD_GPL) */
2416 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_TMOUT);
2417 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_LINK_DOWN_TMOUT);
2418 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_PNO_FIND_TMOUT);
2419 free_netdev(ifp->net);
2420 kfree(ifp);
2421 kfree(dhd);
2422 }
2423 }
2424 }
2425
2426 static void __exit dhd_module_cleanup(void)
2427 {
2428 DHD_TRACE(("%s: Enter\n", __func__));
2429
2430 dhd_bus_unregister();
2431 #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2432 wifi_del_dev();
2433 #endif
2434 /* Call customer gpio to turn off power with WL_REG_ON signal */
2435 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
2436 }
2437
2438 static int __init dhd_module_init(void)
2439 {
2440 int error;
2441
2442 DHD_TRACE(("%s: Enter\n", __func__));
2443
2444 /* Sanity check on the module parameters */
2445 do {
2446 /* Both watchdog and DPC as tasklets are ok */
2447 if ((dhd_watchdog_prio < 0) && (dhd_dpc_prio < 0))
2448 break;
2449
2450 /* If both watchdog and DPC are threads, TX must be deferred */
2451 if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0)
2452 && dhd_deferred_tx)
2453 break;
2454
2455 DHD_ERROR(("Invalid module parameters.\n"));
2456 return -EINVAL;
2457 } while (0);
2458 /* Call customer gpio to turn on power with WL_REG_ON signal */
2459 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_ON);
2460
2461 #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2462 sema_init(&wifi_control_sem, 0);
2463
2464 error = wifi_add_dev();
2465 if (error) {
2466 DHD_ERROR(("%s: platform_driver_register failed\n", __func__));
2467 goto faild;
2468 }
2469
2470 /* Waiting callback after platform_driver_register is done or
2471 exit with error */
2472 if (down_timeout(&wifi_control_sem, msecs_to_jiffies(1000)) != 0) {
2473 printk(KERN_ERR "%s: platform_driver_register timeout\n",
2474 __func__);
2475 /* remove device */
2476 wifi_del_dev();
2477 goto faild;
2478 }
2479 #endif /* #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
2480
2481 error = dhd_bus_register();
2482
2483 if (!error)
2484 printf("\n%s\n", dhd_version);
2485 else {
2486 DHD_ERROR(("%s: sdio_register_driver failed\n", __func__));
2487 goto faild;
2488 }
2489 return error;
2490
2491 faild:
2492 /* turn off power and exit */
2493 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
2494 return -EINVAL;
2495 }
2496
2497 module_init(dhd_module_init);
2498 module_exit(dhd_module_cleanup);
2499
2500 /*
2501 * OS specific functions required to implement DHD driver in OS independent way
2502 */
2503 int dhd_os_proto_block(dhd_pub_t *pub)
2504 {
2505 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2506
2507 if (dhd) {
2508 down(&dhd->proto_sem);
2509 return 1;
2510 }
2511 return 0;
2512 }
2513
2514 int dhd_os_proto_unblock(dhd_pub_t *pub)
2515 {
2516 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2517
2518 if (dhd) {
2519 up(&dhd->proto_sem);
2520 return 1;
2521 }
2522
2523 return 0;
2524 }
2525
2526 unsigned int dhd_os_get_ioctl_resp_timeout(void)
2527 {
2528 return (unsigned int)dhd_ioctl_timeout_msec;
2529 }
2530
2531 void dhd_os_set_ioctl_resp_timeout(unsigned int timeout_msec)
2532 {
2533 dhd_ioctl_timeout_msec = (int)timeout_msec;
2534 }
2535
2536 int dhd_os_ioctl_resp_wait(dhd_pub_t *pub, uint *condition, bool *pending)
2537 {
2538 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2539 DECLARE_WAITQUEUE(wait, current);
2540 int timeout = dhd_ioctl_timeout_msec;
2541
2542 /* Convert timeout in millsecond to jiffies */
2543 timeout = timeout * HZ / 1000;
2544
2545 /* Wait until control frame is available */
2546 add_wait_queue(&dhd->ioctl_resp_wait, &wait);
2547 set_current_state(TASK_INTERRUPTIBLE);
2548
2549 while (!(*condition) && (!signal_pending(current) && timeout))
2550 timeout = schedule_timeout(timeout);
2551
2552 if (signal_pending(current))
2553 *pending = true;
2554
2555 set_current_state(TASK_RUNNING);
2556 remove_wait_queue(&dhd->ioctl_resp_wait, &wait);
2557
2558 return timeout;
2559 }
2560
2561 int dhd_os_ioctl_resp_wake(dhd_pub_t *pub)
2562 {
2563 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2564
2565 if (waitqueue_active(&dhd->ioctl_resp_wait))
2566 wake_up_interruptible(&dhd->ioctl_resp_wait);
2567
2568 return 0;
2569 }
2570
2571 void dhd_os_wd_timer(void *bus, uint wdtick)
2572 {
2573 dhd_pub_t *pub = bus;
2574 static uint save_dhd_watchdog_ms;
2575 dhd_info_t *dhd = (dhd_info_t *) pub->info;
2576
2577 /* don't start the wd until fw is loaded */
2578 if (pub->busstate == DHD_BUS_DOWN)
2579 return;
2580
2581 /* Totally stop the timer */
2582 if (!wdtick && dhd->wd_timer_valid == true) {
2583 del_timer_sync(&dhd->timer);
2584 dhd->wd_timer_valid = false;
2585 save_dhd_watchdog_ms = wdtick;
2586 return;
2587 }
2588
2589 if (wdtick) {
2590 dhd_watchdog_ms = (uint) wdtick;
2591
2592 if (save_dhd_watchdog_ms != dhd_watchdog_ms) {
2593
2594 if (dhd->wd_timer_valid == true)
2595 /* Stop timer and restart at new value */
2596 del_timer_sync(&dhd->timer);
2597
2598 /* Create timer again when watchdog period is
2599 dynamically changed or in the first instance
2600 */
2601 dhd->timer.expires =
2602 jiffies + dhd_watchdog_ms * HZ / 1000;
2603 add_timer(&dhd->timer);
2604
2605 } else {
2606 /* Re arm the timer, at last watchdog period */
2607 mod_timer(&dhd->timer,
2608 jiffies + dhd_watchdog_ms * HZ / 1000);
2609 }
2610
2611 dhd->wd_timer_valid = true;
2612 save_dhd_watchdog_ms = wdtick;
2613 }
2614 }
2615
2616 void *dhd_os_open_image(char *filename)
2617 {
2618 struct file *fp;
2619
2620 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2621 return wl_cfg80211_request_fw(filename);
2622
2623 fp = filp_open(filename, O_RDONLY, 0);
2624 /*
2625 * 2.6.11 (FC4) supports filp_open() but later revs don't?
2626 * Alternative:
2627 * fp = open_namei(AT_FDCWD, filename, O_RD, 0);
2628 * ???
2629 */
2630 if (IS_ERR(fp))
2631 fp = NULL;
2632
2633 return fp;
2634 }
2635
2636 int dhd_os_get_image_block(char *buf, int len, void *image)
2637 {
2638 struct file *fp = (struct file *)image;
2639 int rdlen;
2640
2641 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2642 return wl_cfg80211_read_fw(buf, len);
2643
2644 if (!image)
2645 return 0;
2646
2647 rdlen = kernel_read(fp, fp->f_pos, buf, len);
2648 if (rdlen > 0)
2649 fp->f_pos += rdlen;
2650
2651 return rdlen;
2652 }
2653
2654 void dhd_os_close_image(void *image)
2655 {
2656 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2657 return wl_cfg80211_release_fw();
2658 if (image)
2659 filp_close((struct file *)image, NULL);
2660 }
2661
2662 void dhd_os_sdlock(dhd_pub_t *pub)
2663 {
2664 dhd_info_t *dhd;
2665
2666 dhd = (dhd_info_t *) (pub->info);
2667
2668 if (dhd->threads_only)
2669 down(&dhd->sdsem);
2670 else
2671 spin_lock_bh(&dhd->sdlock);
2672 }
2673
2674 void dhd_os_sdunlock(dhd_pub_t *pub)
2675 {
2676 dhd_info_t *dhd;
2677
2678 dhd = (dhd_info_t *) (pub->info);
2679
2680 if (dhd->threads_only)
2681 up(&dhd->sdsem);
2682 else
2683 spin_unlock_bh(&dhd->sdlock);
2684 }
2685
2686 void dhd_os_sdlock_txq(dhd_pub_t *pub)
2687 {
2688 dhd_info_t *dhd;
2689
2690 dhd = (dhd_info_t *) (pub->info);
2691 spin_lock_bh(&dhd->txqlock);
2692 }
2693
2694 void dhd_os_sdunlock_txq(dhd_pub_t *pub)
2695 {
2696 dhd_info_t *dhd;
2697
2698 dhd = (dhd_info_t *) (pub->info);
2699 spin_unlock_bh(&dhd->txqlock);
2700 }
2701
2702 void dhd_os_sdlock_rxq(dhd_pub_t *pub)
2703 {
2704 }
2705
2706 void dhd_os_sdunlock_rxq(dhd_pub_t *pub)
2707 {
2708 }
2709
2710 void dhd_os_sdtxlock(dhd_pub_t *pub)
2711 {
2712 dhd_os_sdlock(pub);
2713 }
2714
2715 void dhd_os_sdtxunlock(dhd_pub_t *pub)
2716 {
2717 dhd_os_sdunlock(pub);
2718 }
2719
2720 #if defined(CONFIG_WIRELESS_EXT)
2721 struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev)
2722 {
2723 int res = 0;
2724 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2725
2726 res = wl_iw_get_wireless_stats(dev, &dhd->iw.wstats);
2727
2728 if (res == 0)
2729 return &dhd->iw.wstats;
2730 else
2731 return NULL;
2732 }
2733 #endif /* defined(CONFIG_WIRELESS_EXT) */
2734
2735 static int
2736 dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
2737 wl_event_msg_t *event, void **data)
2738 {
2739 int bcmerror = 0;
2740
2741 ASSERT(dhd != NULL);
2742
2743 bcmerror = wl_host_event(dhd, ifidx, pktdata, event, data);
2744 if (bcmerror != BCME_OK)
2745 return bcmerror;
2746
2747 #if defined(CONFIG_WIRELESS_EXT)
2748 if (!IS_CFG80211_FAVORITE()) {
2749 if ((dhd->iflist[*ifidx] == NULL)
2750 || (dhd->iflist[*ifidx]->net == NULL)) {
2751 DHD_ERROR(("%s Exit null pointer\n", __func__));
2752 return bcmerror;
2753 }
2754
2755 if (dhd->iflist[*ifidx]->net)
2756 wl_iw_event(dhd->iflist[*ifidx]->net, event, *data);
2757 }
2758 #endif /* defined(CONFIG_WIRELESS_EXT) */
2759
2760 if (IS_CFG80211_FAVORITE()) {
2761 ASSERT(dhd->iflist[*ifidx] != NULL);
2762 ASSERT(dhd->iflist[*ifidx]->net != NULL);
2763 if (dhd->iflist[*ifidx]->net)
2764 wl_cfg80211_event(dhd->iflist[*ifidx]->net, event,
2765 *data);
2766 }
2767
2768 return bcmerror;
2769 }
2770
2771 /* send up locally generated event */
2772 void dhd_sendup_event(dhd_pub_t *dhdp, wl_event_msg_t *event, void *data)
2773 {
2774 switch (ntoh32(event->event_type)) {
2775 default:
2776 break;
2777 }
2778 }
2779
2780 void dhd_wait_for_event(dhd_pub_t *dhd, bool *lockvar)
2781 {
2782 struct dhd_info *dhdinfo = dhd->info;
2783 dhd_os_sdunlock(dhd);
2784 wait_event_interruptible_timeout(dhdinfo->ctrl_wait,
2785 (*lockvar == false), HZ * 2);
2786 dhd_os_sdlock(dhd);
2787 return;
2788 }
2789
2790 void dhd_wait_event_wakeup(dhd_pub_t *dhd)
2791 {
2792 struct dhd_info *dhdinfo = dhd->info;
2793 if (waitqueue_active(&dhdinfo->ctrl_wait))
2794 wake_up_interruptible(&dhdinfo->ctrl_wait);
2795 return;
2796 }
2797
2798 int dhd_dev_reset(struct net_device *dev, u8 flag)
2799 {
2800 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2801
2802 /* Turning off watchdog */
2803 if (flag)
2804 dhd_os_wd_timer(&dhd->pub, 0);
2805
2806 dhd_bus_devreset(&dhd->pub, flag);
2807
2808 /* Turning on watchdog back */
2809 if (!flag)
2810 dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
2811 DHD_ERROR(("%s: WLAN OFF DONE\n", __func__));
2812
2813 return 1;
2814 }
2815
2816 int net_os_set_suspend_disable(struct net_device *dev, int val)
2817 {
2818 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2819 int ret = 0;
2820
2821 if (dhd) {
2822 ret = dhd->pub.suspend_disable_flag;
2823 dhd->pub.suspend_disable_flag = val;
2824 }
2825 return ret;
2826 }
2827
2828 int net_os_set_suspend(struct net_device *dev, int val)
2829 {
2830 int ret = 0;
2831 #if defined(CONFIG_HAS_EARLYSUSPEND)
2832 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2833
2834 if (dhd) {
2835 dhd_os_proto_block(&dhd->pub);
2836 ret = dhd_set_suspend(val, &dhd->pub);
2837 dhd_os_proto_unblock(&dhd->pub);
2838 }
2839 #endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
2840 return ret;
2841 }
2842
2843 int net_os_set_dtim_skip(struct net_device *dev, int val)
2844 {
2845 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2846
2847 if (dhd)
2848 dhd->pub.dtim_skip = val;
2849
2850 return 0;
2851 }
2852
2853 int net_os_set_packet_filter(struct net_device *dev, int val)
2854 {
2855 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2856 int ret = 0;
2857
2858 /* Packet filtering is set only if we still in early-suspend and
2859 * we need either to turn it ON or turn it OFF
2860 * We can always turn it OFF in case of early-suspend, but we turn it
2861 * back ON only if suspend_disable_flag was not set
2862 */
2863 if (dhd && dhd->pub.up) {
2864 dhd_os_proto_block(&dhd->pub);
2865 if (dhd->pub.in_suspend) {
2866 if (!val || (val && !dhd->pub.suspend_disable_flag))
2867 dhd_set_packet_filter(val, &dhd->pub);
2868 }
2869 dhd_os_proto_unblock(&dhd->pub);
2870 }
2871 return ret;
2872 }
2873
2874 void dhd_dev_init_ioctl(struct net_device *dev)
2875 {
2876 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2877
2878 dhd_preinit_ioctls(&dhd->pub);
2879 }
2880
2881 #ifdef PNO_SUPPORT
2882 /* Linux wrapper to call common dhd_pno_clean */
2883 int dhd_dev_pno_reset(struct net_device *dev)
2884 {
2885 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2886
2887 return dhd_pno_clean(&dhd->pub);
2888 }
2889
2890 /* Linux wrapper to call common dhd_pno_enable */
2891 int dhd_dev_pno_enable(struct net_device *dev, int pfn_enabled)
2892 {
2893 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2894
2895 return dhd_pno_enable(&dhd->pub, pfn_enabled);
2896 }
2897
2898 /* Linux wrapper to call common dhd_pno_set */
2899 int
2900 dhd_dev_pno_set(struct net_device *dev, wlc_ssid_t *ssids_local, int nssid,
2901 unsigned char scan_fr)
2902 {
2903 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2904
2905 return dhd_pno_set(&dhd->pub, ssids_local, nssid, scan_fr);
2906 }
2907
2908 /* Linux wrapper to get pno status */
2909 int dhd_dev_get_pno_status(struct net_device *dev)
2910 {
2911 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2912
2913 return dhd_pno_get_status(&dhd->pub);
2914 }
2915
2916 #endif /* PNO_SUPPORT */
2917
2918 static int dhd_get_pend_8021x_cnt(dhd_info_t *dhd)
2919 {
2920 return atomic_read(&dhd->pend_8021x_cnt);
2921 }
2922
2923 #define MAX_WAIT_FOR_8021X_TX 10
2924
2925 int dhd_wait_pend8021x(struct net_device *dev)
2926 {
2927 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2928 int timeout = 10 * HZ / 1000;
2929 int ntimes = MAX_WAIT_FOR_8021X_TX;
2930 int pend = dhd_get_pend_8021x_cnt(dhd);
2931
2932 while (ntimes && pend) {
2933 if (pend) {
2934 set_current_state(TASK_INTERRUPTIBLE);
2935 schedule_timeout(timeout);
2936 set_current_state(TASK_RUNNING);
2937 ntimes--;
2938 }
2939 pend = dhd_get_pend_8021x_cnt(dhd);
2940 }
2941 return pend;
2942 }
2943
2944 #ifdef DHD_DEBUG
2945 int write_to_file(dhd_pub_t *dhd, u8 *buf, int size)
2946 {
2947 int ret = 0;
2948 struct file *fp;
2949 mm_segment_t old_fs;
2950 loff_t pos = 0;
2951
2952 /* change to KERNEL_DS address limit */
2953 old_fs = get_fs();
2954 set_fs(KERNEL_DS);
2955
2956 /* open file to write */
2957 fp = filp_open("/tmp/mem_dump", O_WRONLY | O_CREAT, 0640);
2958 if (!fp) {
2959 printf("%s: open file error\n", __func__);
2960 ret = -1;
2961 goto exit;
2962 }
2963
2964 /* Write buf to file */
2965 fp->f_op->write(fp, buf, size, &pos);
2966
2967 exit:
2968 /* free buf before return */
2969 kfree(buf);
2970 /* close file before return */
2971 if (fp)
2972 filp_close(fp, current->files);
2973 /* restore previous address limit */
2974 set_fs(old_fs);
2975
2976 return ret;
2977 }
2978 #endif /* DHD_DEBUG */
CJK support for tty framebuffer vt