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[deliverable/linux.git] / 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 <bcmutils.h>
36
37 #include <dngl_stats.h>
38 #include <dhd.h>
39 #include <dhd_bus.h>
40 #include <dhd_proto.h>
41 #include <dhd_dbg.h>
42
43 #include <wl_cfg80211.h>
44
45 #define EPI_VERSION_STR "4.218.248.5"
46 #define ETH_P_BRCM 0x886c
47
48 #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
49 #include <linux/wifi_tiwlan.h>
50
51 struct semaphore wifi_control_sem;
52
53 struct dhd_bus *g_bus;
54
55 static struct wifi_platform_data *wifi_control_data;
56 static struct resource *wifi_irqres;
57
58 int wifi_get_irq_number(unsigned long *irq_flags_ptr)
59 {
60 if (wifi_irqres) {
61 *irq_flags_ptr = wifi_irqres->flags & IRQF_TRIGGER_MASK;
62 return (int)wifi_irqres->start;
63 }
64 #ifdef CUSTOM_OOB_GPIO_NUM
65 return CUSTOM_OOB_GPIO_NUM;
66 #else
67 return -1;
68 #endif
69 }
70
71 int wifi_set_carddetect(int on)
72 {
73 printk(KERN_ERR "%s = %d\n", __func__, on);
74 if (wifi_control_data && wifi_control_data->set_carddetect)
75 wifi_control_data->set_carddetect(on);
76 return 0;
77 }
78
79 int wifi_set_power(int on, unsigned long msec)
80 {
81 printk(KERN_ERR "%s = %d\n", __func__, on);
82 if (wifi_control_data && wifi_control_data->set_power)
83 wifi_control_data->set_power(on);
84 if (msec)
85 mdelay(msec);
86 return 0;
87 }
88
89 int wifi_set_reset(int on, unsigned long msec)
90 {
91 printk(KERN_ERR "%s = %d\n", __func__, on);
92 if (wifi_control_data && wifi_control_data->set_reset)
93 wifi_control_data->set_reset(on);
94 if (msec)
95 mdelay(msec);
96 return 0;
97 }
98
99 static int wifi_probe(struct platform_device *pdev)
100 {
101 struct wifi_platform_data *wifi_ctrl =
102 (struct wifi_platform_data *)(pdev->dev.platform_data);
103
104 printk(KERN_ERR "## %s\n", __func__);
105 wifi_irqres =
106 platform_get_resource_byname(pdev, IORESOURCE_IRQ,
107 "bcm4329_wlan_irq");
108 wifi_control_data = wifi_ctrl;
109
110 wifi_set_power(1, 0); /* Power On */
111 wifi_set_carddetect(1); /* CardDetect (0->1) */
112
113 up(&wifi_control_sem);
114 return 0;
115 }
116
117 static int wifi_remove(struct platform_device *pdev)
118 {
119 struct wifi_platform_data *wifi_ctrl =
120 (struct wifi_platform_data *)(pdev->dev.platform_data);
121
122 printk(KERN_ERR "## %s\n", __func__);
123 wifi_control_data = wifi_ctrl;
124
125 wifi_set_carddetect(0); /* CardDetect (1->0) */
126 wifi_set_power(0, 0); /* Power Off */
127
128 up(&wifi_control_sem);
129 return 0;
130 }
131
132 static int wifi_suspend(struct platform_device *pdev, pm_message_t state)
133 {
134 DHD_TRACE(("##> %s\n", __func__));
135 return 0;
136 }
137
138 static int wifi_resume(struct platform_device *pdev)
139 {
140 DHD_TRACE(("##> %s\n", __func__));
141 return 0;
142 }
143
144 static struct platform_driver wifi_device = {
145 .probe = wifi_probe,
146 .remove = wifi_remove,
147 .suspend = wifi_suspend,
148 .resume = wifi_resume,
149 .driver = {
150 .name = KBUILD_MODNAME,
151 }
152 };
153
154 int wifi_add_dev(void)
155 {
156 DHD_TRACE(("## Calling platform_driver_register\n"));
157 return platform_driver_register(&wifi_device);
158 }
159
160 void wifi_del_dev(void)
161 {
162 DHD_TRACE(("## Unregister platform_driver_register\n"));
163 platform_driver_unregister(&wifi_device);
164 }
165 #endif /* defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
166
167 #if defined(CONFIG_PM_SLEEP)
168 #include <linux/suspend.h>
169 atomic_t dhd_mmc_suspend;
170 DECLARE_WAIT_QUEUE_HEAD(dhd_dpc_wait);
171 #endif /* defined(CONFIG_PM_SLEEP) */
172
173 #if defined(OOB_INTR_ONLY)
174 extern void dhd_enable_oob_intr(struct dhd_bus *bus, bool enable);
175 #endif /* defined(OOB_INTR_ONLY) */
176
177 MODULE_AUTHOR("Broadcom Corporation");
178 MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac driver.");
179 MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac cards");
180 MODULE_LICENSE("Dual BSD/GPL");
181
182 #define DRV_MODULE_NAME "brcmfmac"
183
184 /* Linux wireless extension support */
185 #if defined(CONFIG_WIRELESS_EXT)
186 #include <wl_iw.h>
187 extern wl_iw_extra_params_t g_wl_iw_params;
188 #endif /* defined(CONFIG_WIRELESS_EXT) */
189
190 #if defined(CONFIG_HAS_EARLYSUSPEND)
191 #include <linux/earlysuspend.h>
192 extern int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf,
193 uint len);
194 #endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
195
196 #ifdef PKT_FILTER_SUPPORT
197 extern void dhd_pktfilter_offload_set(dhd_pub_t *dhd, char *arg);
198 extern void dhd_pktfilter_offload_enable(dhd_pub_t *dhd, char *arg, int enable,
199 int master_mode);
200 #endif
201
202 /* Interface control information */
203 typedef struct dhd_if {
204 struct dhd_info *info; /* back pointer to dhd_info */
205 /* OS/stack specifics */
206 struct net_device *net;
207 struct net_device_stats stats;
208 int idx; /* iface idx in dongle */
209 int state; /* interface state */
210 uint subunit; /* subunit */
211 u8 mac_addr[ETH_ALEN]; /* assigned MAC address */
212 bool attached; /* Delayed attachment when unset */
213 bool txflowcontrol; /* Per interface flow control indicator */
214 char name[IFNAMSIZ]; /* linux interface name */
215 } dhd_if_t;
216
217 /* Local private structure (extension of pub) */
218 typedef struct dhd_info {
219 #if defined(CONFIG_WIRELESS_EXT)
220 wl_iw_t iw; /* wireless extensions state (must be first) */
221 #endif /* defined(CONFIG_WIRELESS_EXT) */
222
223 dhd_pub_t pub;
224
225 /* OS/stack specifics */
226 dhd_if_t *iflist[DHD_MAX_IFS];
227
228 struct semaphore proto_sem;
229 wait_queue_head_t ioctl_resp_wait;
230 struct timer_list timer;
231 bool wd_timer_valid;
232 struct tasklet_struct tasklet;
233 spinlock_t sdlock;
234 spinlock_t txqlock;
235 /* Thread based operation */
236 bool threads_only;
237 struct semaphore sdsem;
238 struct task_struct *watchdog_tsk;
239 struct semaphore watchdog_sem;
240 struct task_struct *dpc_tsk;
241 struct semaphore dpc_sem;
242
243 /* Thread to issue ioctl for multicast */
244 struct task_struct *sysioc_tsk;
245 struct semaphore sysioc_sem;
246 bool set_multicast;
247 bool set_macaddress;
248 u8 macvalue[ETH_ALEN];
249 wait_queue_head_t ctrl_wait;
250 atomic_t pend_8021x_cnt;
251
252 #ifdef CONFIG_HAS_EARLYSUSPEND
253 struct early_suspend early_suspend;
254 #endif /* CONFIG_HAS_EARLYSUSPEND */
255 } dhd_info_t;
256
257 /* Definitions to provide path to the firmware and nvram
258 * example nvram_path[MOD_PARAM_PATHLEN]="/projects/wlan/nvram.txt"
259 */
260 char firmware_path[MOD_PARAM_PATHLEN];
261 char nvram_path[MOD_PARAM_PATHLEN];
262
263 /* load firmware and/or nvram values from the filesystem */
264 module_param_string(firmware_path, firmware_path, MOD_PARAM_PATHLEN, 0);
265 module_param_string(nvram_path, nvram_path, MOD_PARAM_PATHLEN, 0);
266
267 /* Error bits */
268 module_param(dhd_msg_level, int, 0);
269
270 /* Spawn a thread for system ioctls (set mac, set mcast) */
271 uint dhd_sysioc = true;
272 module_param(dhd_sysioc, uint, 0);
273
274 /* Watchdog interval */
275 uint dhd_watchdog_ms = 10;
276 module_param(dhd_watchdog_ms, uint, 0);
277
278 #ifdef DHD_DEBUG
279 /* Console poll interval */
280 uint dhd_console_ms;
281 module_param(dhd_console_ms, uint, 0);
282 #endif /* DHD_DEBUG */
283
284 /* ARP offload agent mode : Enable ARP Host Auto-Reply
285 and ARP Peer Auto-Reply */
286 uint dhd_arp_mode = 0xb;
287 module_param(dhd_arp_mode, uint, 0);
288
289 /* ARP offload enable */
290 uint dhd_arp_enable = true;
291 module_param(dhd_arp_enable, uint, 0);
292
293 /* Global Pkt filter enable control */
294 uint dhd_pkt_filter_enable = true;
295 module_param(dhd_pkt_filter_enable, uint, 0);
296
297 /* Pkt filter init setup */
298 uint dhd_pkt_filter_init;
299 module_param(dhd_pkt_filter_init, uint, 0);
300
301 /* Pkt filter mode control */
302 uint dhd_master_mode = true;
303 module_param(dhd_master_mode, uint, 1);
304
305 /* Watchdog thread priority, -1 to use kernel timer */
306 int dhd_watchdog_prio = 97;
307 module_param(dhd_watchdog_prio, int, 0);
308
309 /* DPC thread priority, -1 to use tasklet */
310 int dhd_dpc_prio = 98;
311 module_param(dhd_dpc_prio, int, 0);
312
313 /* DPC thread priority, -1 to use tasklet */
314 extern int dhd_dongle_memsize;
315 module_param(dhd_dongle_memsize, int, 0);
316
317 /* Contorl fw roaming */
318 #ifdef CUSTOMER_HW2
319 uint dhd_roam;
320 #else
321 uint dhd_roam = 1;
322 #endif
323
324 /* Control radio state */
325 uint dhd_radio_up = 1;
326
327 /* Network inteface name */
328 char iface_name[IFNAMSIZ] = "wlan";
329 module_param_string(iface_name, iface_name, IFNAMSIZ, 0);
330
331 /* The following are specific to the SDIO dongle */
332
333 /* IOCTL response timeout */
334 int dhd_ioctl_timeout_msec = IOCTL_RESP_TIMEOUT;
335
336 /* Idle timeout for backplane clock */
337 int dhd_idletime = DHD_IDLETIME_TICKS;
338 module_param(dhd_idletime, int, 0);
339
340 /* Use polling */
341 uint dhd_poll = false;
342 module_param(dhd_poll, uint, 0);
343
344 /* Use cfg80211 */
345 uint dhd_cfg80211 = true;
346 module_param(dhd_cfg80211, uint, 0);
347
348 /* Use interrupts */
349 uint dhd_intr = true;
350 module_param(dhd_intr, uint, 0);
351
352 /* SDIO Drive Strength (in milliamps) */
353 uint dhd_sdiod_drive_strength = 6;
354 module_param(dhd_sdiod_drive_strength, uint, 0);
355
356 /* Tx/Rx bounds */
357 extern uint dhd_txbound;
358 extern uint dhd_rxbound;
359 module_param(dhd_txbound, uint, 0);
360 module_param(dhd_rxbound, uint, 0);
361
362 /* Deferred transmits */
363 extern uint dhd_deferred_tx;
364 module_param(dhd_deferred_tx, uint, 0);
365
366 #ifdef SDTEST
367 /* Echo packet generator (pkts/s) */
368 uint dhd_pktgen;
369 module_param(dhd_pktgen, uint, 0);
370
371 /* Echo packet len (0 => sawtooth, max 2040) */
372 uint dhd_pktgen_len;
373 module_param(dhd_pktgen_len, uint, 0);
374 #endif
375
376 #define FAVORITE_WIFI_CP (!!dhd_cfg80211)
377 #define IS_CFG80211_FAVORITE() FAVORITE_WIFI_CP
378 #define DBG_CFG80211_GET() ((dhd_cfg80211 & WL_DBG_MASK) >> 1)
379 #define NO_FW_REQ() (dhd_cfg80211 & 0x80)
380
381 /* Version string to report */
382 #ifdef DHD_DEBUG
383 #define DHD_COMPILED "\nCompiled in " SRCBASE
384 #else
385 #define DHD_COMPILED
386 #endif
387
388 static void dhd_dpc(unsigned long data);
389 /* forward decl */
390 extern int dhd_wait_pend8021x(struct net_device *dev);
391
392 #ifdef TOE
393 #ifndef BDC
394 #error TOE requires BDC
395 #endif /* !BDC */
396 static int dhd_toe_get(dhd_info_t *dhd, int idx, u32 *toe_ol);
397 static int dhd_toe_set(dhd_info_t *dhd, int idx, u32 toe_ol);
398 #endif /* TOE */
399
400 static int dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
401 wl_event_msg_t *event_ptr, void **data_ptr);
402
403 #if defined(CONFIG_PM_SLEEP)
404 static int dhd_sleep_pm_callback(struct notifier_block *nfb,
405 unsigned long action, void *ignored)
406 {
407 switch (action) {
408 case PM_HIBERNATION_PREPARE:
409 case PM_SUSPEND_PREPARE:
410 atomic_set(&dhd_mmc_suspend, true);
411 return NOTIFY_OK;
412 case PM_POST_HIBERNATION:
413 case PM_POST_SUSPEND:
414 atomic_set(&dhd_mmc_suspend, false);
415 return NOTIFY_OK;
416 }
417 return 0;
418 }
419
420 static struct notifier_block dhd_sleep_pm_notifier = {
421 .notifier_call = dhd_sleep_pm_callback,
422 .priority = 0
423 };
424
425 extern int register_pm_notifier(struct notifier_block *nb);
426 extern int unregister_pm_notifier(struct notifier_block *nb);
427 #endif /* defined(CONFIG_PM_SLEEP) */
428 /* && defined(DHD_GPL) */
429 static void dhd_set_packet_filter(int value, dhd_pub_t *dhd)
430 {
431 #ifdef PKT_FILTER_SUPPORT
432 DHD_TRACE(("%s: %d\n", __func__, value));
433 /* 1 - Enable packet filter, only allow unicast packet to send up */
434 /* 0 - Disable packet filter */
435 if (dhd_pkt_filter_enable) {
436 int i;
437
438 for (i = 0; i < dhd->pktfilter_count; i++) {
439 dhd_pktfilter_offload_set(dhd, dhd->pktfilter[i]);
440 dhd_pktfilter_offload_enable(dhd, dhd->pktfilter[i],
441 value, dhd_master_mode);
442 }
443 }
444 #endif
445 }
446
447 #if defined(CONFIG_HAS_EARLYSUSPEND)
448 static int dhd_set_suspend(int value, dhd_pub_t *dhd)
449 {
450 int power_mode = PM_MAX;
451 /* wl_pkt_filter_enable_t enable_parm; */
452 char iovbuf[32];
453 int bcn_li_dtim = 3;
454 #ifdef CUSTOMER_HW2
455 uint roamvar = 1;
456 #endif /* CUSTOMER_HW2 */
457
458 DHD_TRACE(("%s: enter, value = %d in_suspend=%d\n",
459 __func__, value, dhd->in_suspend));
460
461 if (dhd && dhd->up) {
462 if (value && dhd->in_suspend) {
463
464 /* Kernel suspended */
465 DHD_TRACE(("%s: force extra Suspend setting\n",
466 __func__));
467
468 dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM,
469 (char *)&power_mode,
470 sizeof(power_mode));
471
472 /* Enable packet filter, only allow unicast
473 packet to send up */
474 dhd_set_packet_filter(1, dhd);
475
476 /* if dtim skip setup as default force it
477 * to wake each third dtim
478 * for better power saving.
479 * Note that side effect is chance to miss BC/MC
480 * packet
481 */
482 if ((dhd->dtim_skip == 0) || (dhd->dtim_skip == 1))
483 bcn_li_dtim = 3;
484 else
485 bcn_li_dtim = dhd->dtim_skip;
486 bcm_mkiovar("bcn_li_dtim", (char *)&bcn_li_dtim,
487 4, iovbuf, sizeof(iovbuf));
488 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
489 sizeof(iovbuf));
490 #ifdef CUSTOMER_HW2
491 /* Disable build-in roaming to allowed \
492 * supplicant to take of romaing
493 */
494 bcm_mkiovar("roam_off", (char *)&roamvar, 4,
495 iovbuf, sizeof(iovbuf));
496 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
497 sizeof(iovbuf));
498 #endif /* CUSTOMER_HW2 */
499 } else {
500
501 /* Kernel resumed */
502 DHD_TRACE(("%s: Remove extra suspend setting\n",
503 __func__));
504
505 power_mode = PM_FAST;
506 dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM,
507 (char *)&power_mode,
508 sizeof(power_mode));
509
510 /* disable pkt filter */
511 dhd_set_packet_filter(0, dhd);
512
513 /* restore pre-suspend setting for dtim_skip */
514 bcm_mkiovar("bcn_li_dtim", (char *)&dhd->dtim_skip,
515 4, iovbuf, sizeof(iovbuf));
516
517 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
518 sizeof(iovbuf));
519 #ifdef CUSTOMER_HW2
520 roamvar = 0;
521 bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf,
522 sizeof(iovbuf));
523 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
524 sizeof(iovbuf));
525 #endif /* CUSTOMER_HW2 */
526 }
527 }
528
529 return 0;
530 }
531
532 static void dhd_suspend_resume_helper(struct dhd_info *dhd, int val)
533 {
534 dhd_pub_t *dhdp = &dhd->pub;
535
536 dhd_os_proto_block(dhdp);
537 /* Set flag when early suspend was called */
538 dhdp->in_suspend = val;
539 if (!dhdp->suspend_disable_flag)
540 dhd_set_suspend(val, dhdp);
541 dhd_os_proto_unblock(dhdp);
542 }
543
544 static void dhd_early_suspend(struct early_suspend *h)
545 {
546 struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
547
548 DHD_TRACE(("%s: enter\n", __func__));
549
550 if (dhd)
551 dhd_suspend_resume_helper(dhd, 1);
552
553 }
554
555 static void dhd_late_resume(struct early_suspend *h)
556 {
557 struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
558
559 DHD_TRACE(("%s: enter\n", __func__));
560
561 if (dhd)
562 dhd_suspend_resume_helper(dhd, 0);
563 }
564 #endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
565
566 /*
567 * Generalized timeout mechanism. Uses spin sleep with exponential
568 * back-off until
569 * the sleep time reaches one jiffy, then switches over to task delay. Usage:
570 *
571 * dhd_timeout_start(&tmo, usec);
572 * while (!dhd_timeout_expired(&tmo))
573 * if (poll_something())
574 * break;
575 * if (dhd_timeout_expired(&tmo))
576 * fatal();
577 */
578
579 void dhd_timeout_start(dhd_timeout_t *tmo, uint usec)
580 {
581 tmo->limit = usec;
582 tmo->increment = 0;
583 tmo->elapsed = 0;
584 tmo->tick = 1000000 / HZ;
585 }
586
587 int dhd_timeout_expired(dhd_timeout_t *tmo)
588 {
589 /* Does nothing the first call */
590 if (tmo->increment == 0) {
591 tmo->increment = 1;
592 return 0;
593 }
594
595 if (tmo->elapsed >= tmo->limit)
596 return 1;
597
598 /* Add the delay that's about to take place */
599 tmo->elapsed += tmo->increment;
600
601 if (tmo->increment < tmo->tick) {
602 udelay(tmo->increment);
603 tmo->increment *= 2;
604 if (tmo->increment > tmo->tick)
605 tmo->increment = tmo->tick;
606 } else {
607 wait_queue_head_t delay_wait;
608 DECLARE_WAITQUEUE(wait, current);
609 int pending;
610 init_waitqueue_head(&delay_wait);
611 add_wait_queue(&delay_wait, &wait);
612 set_current_state(TASK_INTERRUPTIBLE);
613 schedule_timeout(1);
614 pending = signal_pending(current);
615 remove_wait_queue(&delay_wait, &wait);
616 set_current_state(TASK_RUNNING);
617 if (pending)
618 return 1; /* Interrupted */
619 }
620
621 return 0;
622 }
623
624 static int dhd_net2idx(dhd_info_t *dhd, struct net_device *net)
625 {
626 int i = 0;
627
628 ASSERT(dhd);
629 while (i < DHD_MAX_IFS) {
630 if (dhd->iflist[i] && (dhd->iflist[i]->net == net))
631 return i;
632 i++;
633 }
634
635 return DHD_BAD_IF;
636 }
637
638 int dhd_ifname2idx(dhd_info_t *dhd, char *name)
639 {
640 int i = DHD_MAX_IFS;
641
642 ASSERT(dhd);
643
644 if (name == NULL || *name == '\0')
645 return 0;
646
647 while (--i > 0)
648 if (dhd->iflist[i]
649 && !strncmp(dhd->iflist[i]->name, name, IFNAMSIZ))
650 break;
651
652 DHD_TRACE(("%s: return idx %d for \"%s\"\n", __func__, i, name));
653
654 return i; /* default - the primary interface */
655 }
656
657 char *dhd_ifname(dhd_pub_t *dhdp, int ifidx)
658 {
659 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
660
661 ASSERT(dhd);
662
663 if (ifidx < 0 || ifidx >= DHD_MAX_IFS) {
664 DHD_ERROR(("%s: ifidx %d out of range\n", __func__, ifidx));
665 return "<if_bad>";
666 }
667
668 if (dhd->iflist[ifidx] == NULL) {
669 DHD_ERROR(("%s: null i/f %d\n", __func__, ifidx));
670 return "<if_null>";
671 }
672
673 if (dhd->iflist[ifidx]->net)
674 return dhd->iflist[ifidx]->net->name;
675
676 return "<if_none>";
677 }
678
679 static void _dhd_set_multicast_list(dhd_info_t *dhd, int ifidx)
680 {
681 struct net_device *dev;
682 struct netdev_hw_addr *ha;
683 u32 allmulti, cnt;
684
685 wl_ioctl_t ioc;
686 char *buf, *bufp;
687 uint buflen;
688 int ret;
689
690 ASSERT(dhd && dhd->iflist[ifidx]);
691 dev = dhd->iflist[ifidx]->net;
692 cnt = netdev_mc_count(dev);
693
694 /* Determine initial value of allmulti flag */
695 allmulti = (dev->flags & IFF_ALLMULTI) ? true : false;
696
697 /* Send down the multicast list first. */
698
699 buflen = sizeof("mcast_list") + sizeof(cnt) + (cnt * ETH_ALEN);
700 bufp = buf = kmalloc(buflen, GFP_ATOMIC);
701 if (!bufp) {
702 DHD_ERROR(("%s: out of memory for mcast_list, cnt %d\n",
703 dhd_ifname(&dhd->pub, ifidx), cnt));
704 return;
705 }
706
707 strcpy(bufp, "mcast_list");
708 bufp += strlen("mcast_list") + 1;
709
710 cnt = cpu_to_le32(cnt);
711 memcpy(bufp, &cnt, sizeof(cnt));
712 bufp += sizeof(cnt);
713
714 netdev_for_each_mc_addr(ha, dev) {
715 if (!cnt)
716 break;
717 memcpy(bufp, ha->addr, ETH_ALEN);
718 bufp += ETH_ALEN;
719 cnt--;
720 }
721
722 memset(&ioc, 0, sizeof(ioc));
723 ioc.cmd = WLC_SET_VAR;
724 ioc.buf = buf;
725 ioc.len = buflen;
726 ioc.set = true;
727
728 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
729 if (ret < 0) {
730 DHD_ERROR(("%s: set mcast_list failed, cnt %d\n",
731 dhd_ifname(&dhd->pub, ifidx), cnt));
732 allmulti = cnt ? true : allmulti;
733 }
734
735 kfree(buf);
736
737 /* Now send the allmulti setting. This is based on the setting in the
738 * net_device flags, but might be modified above to be turned on if we
739 * were trying to set some addresses and dongle rejected it...
740 */
741
742 buflen = sizeof("allmulti") + sizeof(allmulti);
743 buf = kmalloc(buflen, GFP_ATOMIC);
744 if (!buf) {
745 DHD_ERROR(("%s: out of memory for allmulti\n",
746 dhd_ifname(&dhd->pub, ifidx)));
747 return;
748 }
749 allmulti = cpu_to_le32(allmulti);
750
751 if (!bcm_mkiovar
752 ("allmulti", (void *)&allmulti, sizeof(allmulti), buf, buflen)) {
753 DHD_ERROR(("%s: mkiovar failed for allmulti, datalen %d "
754 "buflen %u\n", dhd_ifname(&dhd->pub, ifidx),
755 (int)sizeof(allmulti), buflen));
756 kfree(buf);
757 return;
758 }
759
760 memset(&ioc, 0, sizeof(ioc));
761 ioc.cmd = WLC_SET_VAR;
762 ioc.buf = buf;
763 ioc.len = buflen;
764 ioc.set = true;
765
766 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
767 if (ret < 0) {
768 DHD_ERROR(("%s: set allmulti %d failed\n",
769 dhd_ifname(&dhd->pub, ifidx),
770 le32_to_cpu(allmulti)));
771 }
772
773 kfree(buf);
774
775 /* Finally, pick up the PROMISC flag as well, like the NIC
776 driver does */
777
778 allmulti = (dev->flags & IFF_PROMISC) ? true : false;
779 allmulti = cpu_to_le32(allmulti);
780
781 memset(&ioc, 0, sizeof(ioc));
782 ioc.cmd = WLC_SET_PROMISC;
783 ioc.buf = &allmulti;
784 ioc.len = sizeof(allmulti);
785 ioc.set = true;
786
787 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
788 if (ret < 0) {
789 DHD_ERROR(("%s: set promisc %d failed\n",
790 dhd_ifname(&dhd->pub, ifidx),
791 le32_to_cpu(allmulti)));
792 }
793 }
794
795 static int
796 _dhd_set_mac_address(dhd_info_t *dhd, int ifidx, u8 *addr)
797 {
798 char buf[32];
799 wl_ioctl_t ioc;
800 int ret;
801
802 DHD_TRACE(("%s enter\n", __func__));
803 if (!bcm_mkiovar
804 ("cur_etheraddr", (char *)addr, ETH_ALEN, buf, 32)) {
805 DHD_ERROR(("%s: mkiovar failed for cur_etheraddr\n",
806 dhd_ifname(&dhd->pub, ifidx)));
807 return -1;
808 }
809 memset(&ioc, 0, sizeof(ioc));
810 ioc.cmd = WLC_SET_VAR;
811 ioc.buf = buf;
812 ioc.len = 32;
813 ioc.set = true;
814
815 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
816 if (ret < 0) {
817 DHD_ERROR(("%s: set cur_etheraddr failed\n",
818 dhd_ifname(&dhd->pub, ifidx)));
819 } else {
820 memcpy(dhd->iflist[ifidx]->net->dev_addr, addr, ETH_ALEN);
821 }
822
823 return ret;
824 }
825
826 #ifdef SOFTAP
827 extern struct net_device *ap_net_dev;
828 #endif
829
830 static void dhd_op_if(dhd_if_t *ifp)
831 {
832 dhd_info_t *dhd;
833 int ret = 0, err = 0;
834
835 ASSERT(ifp && ifp->info && ifp->idx); /* Virtual interfaces only */
836
837 dhd = ifp->info;
838
839 DHD_TRACE(("%s: idx %d, state %d\n", __func__, ifp->idx, ifp->state));
840
841 switch (ifp->state) {
842 case WLC_E_IF_ADD:
843 /*
844 * Delete the existing interface before overwriting it
845 * in case we missed the WLC_E_IF_DEL event.
846 */
847 if (ifp->net != NULL) {
848 DHD_ERROR(("%s: ERROR: netdev:%s already exists, "
849 "try free & unregister\n",
850 __func__, ifp->net->name));
851 netif_stop_queue(ifp->net);
852 unregister_netdev(ifp->net);
853 free_netdev(ifp->net);
854 }
855 /* Allocate etherdev, including space for private structure */
856 ifp->net = alloc_etherdev(sizeof(dhd));
857 if (!ifp->net) {
858 DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
859 ret = -ENOMEM;
860 }
861 if (ret == 0) {
862 strcpy(ifp->net->name, ifp->name);
863 memcpy(netdev_priv(ifp->net), &dhd, sizeof(dhd));
864 err = dhd_net_attach(&dhd->pub, ifp->idx);
865 if (err != 0) {
866 DHD_ERROR(("%s: dhd_net_attach failed, "
867 "err %d\n",
868 __func__, err));
869 ret = -EOPNOTSUPP;
870 } else {
871 #ifdef SOFTAP
872 /* semaphore that the soft AP CODE
873 waits on */
874 extern struct semaphore ap_eth_sema;
875
876 /* save ptr to wl0.1 netdev for use
877 in wl_iw.c */
878 ap_net_dev = ifp->net;
879 /* signal to the SOFTAP 'sleeper' thread,
880 wl0.1 is ready */
881 up(&ap_eth_sema);
882 #endif
883 DHD_TRACE(("\n ==== pid:%x, net_device for "
884 "if:%s created ===\n\n",
885 current->pid, ifp->net->name));
886 ifp->state = 0;
887 }
888 }
889 break;
890 case WLC_E_IF_DEL:
891 if (ifp->net != NULL) {
892 DHD_TRACE(("\n%s: got 'WLC_E_IF_DEL' state\n",
893 __func__));
894 netif_stop_queue(ifp->net);
895 unregister_netdev(ifp->net);
896 ret = DHD_DEL_IF; /* Make sure the free_netdev()
897 is called */
898 }
899 break;
900 default:
901 DHD_ERROR(("%s: bad op %d\n", __func__, ifp->state));
902 ASSERT(!ifp->state);
903 break;
904 }
905
906 if (ret < 0) {
907 if (ifp->net)
908 free_netdev(ifp->net);
909
910 dhd->iflist[ifp->idx] = NULL;
911 kfree(ifp);
912 #ifdef SOFTAP
913 if (ifp->net == ap_net_dev)
914 ap_net_dev = NULL; /* NULL SOFTAP global
915 wl0.1 as well */
916 #endif /* SOFTAP */
917 }
918 }
919
920 static int _dhd_sysioc_thread(void *data)
921 {
922 dhd_info_t *dhd = (dhd_info_t *) data;
923 int i;
924 #ifdef SOFTAP
925 bool in_ap = false;
926 #endif
927
928 allow_signal(SIGTERM);
929
930 while (down_interruptible(&dhd->sysioc_sem) == 0) {
931 if (kthread_should_stop())
932 break;
933 for (i = 0; i < DHD_MAX_IFS; i++) {
934 if (dhd->iflist[i]) {
935 #ifdef SOFTAP
936 in_ap = (ap_net_dev != NULL);
937 #endif /* SOFTAP */
938 if (dhd->iflist[i]->state)
939 dhd_op_if(dhd->iflist[i]);
940 #ifdef SOFTAP
941 if (dhd->iflist[i] == NULL) {
942 DHD_TRACE(("\n\n %s: interface %d "
943 "removed!\n", __func__, i));
944 continue;
945 }
946
947 if (in_ap && dhd->set_macaddress) {
948 DHD_TRACE(("attempt to set MAC for %s "
949 "in AP Mode," "blocked. \n",
950 dhd->iflist[i]->net->name));
951 dhd->set_macaddress = false;
952 continue;
953 }
954
955 if (in_ap && dhd->set_multicast) {
956 DHD_TRACE(("attempt to set MULTICAST list for %s" "in AP Mode, blocked. \n",
957 dhd->iflist[i]->net->name));
958 dhd->set_multicast = false;
959 continue;
960 }
961 #endif /* SOFTAP */
962 if (dhd->set_multicast) {
963 dhd->set_multicast = false;
964 _dhd_set_multicast_list(dhd, i);
965 }
966 if (dhd->set_macaddress) {
967 dhd->set_macaddress = false;
968 _dhd_set_mac_address(dhd, i,
969 dhd->macvalue);
970 }
971 }
972 }
973 }
974 return 0;
975 }
976
977 static int dhd_set_mac_address(struct net_device *dev, void *addr)
978 {
979 int ret = 0;
980
981 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
982 struct sockaddr *sa = (struct sockaddr *)addr;
983 int ifidx;
984
985 ifidx = dhd_net2idx(dhd, dev);
986 if (ifidx == DHD_BAD_IF)
987 return -1;
988
989 ASSERT(dhd->sysioc_tsk);
990 memcpy(&dhd->macvalue, sa->sa_data, ETH_ALEN);
991 dhd->set_macaddress = true;
992 up(&dhd->sysioc_sem);
993
994 return ret;
995 }
996
997 static void dhd_set_multicast_list(struct net_device *dev)
998 {
999 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
1000 int ifidx;
1001
1002 ifidx = dhd_net2idx(dhd, dev);
1003 if (ifidx == DHD_BAD_IF)
1004 return;
1005
1006 ASSERT(dhd->sysioc_tsk);
1007 dhd->set_multicast = true;
1008 up(&dhd->sysioc_sem);
1009 }
1010
1011 int dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, struct sk_buff *pktbuf)
1012 {
1013 int ret;
1014 dhd_info_t *dhd = (dhd_info_t *) (dhdp->info);
1015
1016 /* Reject if down */
1017 if (!dhdp->up || (dhdp->busstate == DHD_BUS_DOWN))
1018 return -ENODEV;
1019
1020 /* Update multicast statistic */
1021 if (pktbuf->len >= ETH_ALEN) {
1022 u8 *pktdata = (u8 *) (pktbuf->data);
1023 struct ethhdr *eh = (struct ethhdr *)pktdata;
1024
1025 if (is_multicast_ether_addr(eh->h_dest))
1026 dhdp->tx_multicast++;
1027 if (ntohs(eh->h_proto) == ETH_P_PAE)
1028 atomic_inc(&dhd->pend_8021x_cnt);
1029 }
1030
1031 /* If the protocol uses a data header, apply it */
1032 dhd_prot_hdrpush(dhdp, ifidx, pktbuf);
1033
1034 /* Use bus module to send data frame */
1035 #ifdef BCMDBUS
1036 ret = dbus_send_pkt(dhdp->dbus, pktbuf, NULL /* pktinfo */);
1037 #else
1038 ret = dhd_bus_txdata(dhdp->bus, pktbuf);
1039 #endif /* BCMDBUS */
1040
1041 return ret;
1042 }
1043
1044 static inline void *
1045 osl_pkt_frmnative(struct sk_buff *skb)
1046 {
1047 return (void *)skb;
1048 }
1049 #define PKTFRMNATIVE(osh, skb) \
1050 osl_pkt_frmnative((struct sk_buff *)(skb))
1051
1052 static inline struct sk_buff *
1053 osl_pkt_tonative(void *pkt)
1054 {
1055 return (struct sk_buff *)pkt;
1056 }
1057 #define PKTTONATIVE(osh, pkt) \
1058 osl_pkt_tonative((pkt))
1059
1060 static int dhd_start_xmit(struct sk_buff *skb, struct net_device *net)
1061 {
1062 int ret;
1063 void *pktbuf;
1064 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1065 int ifidx;
1066
1067 DHD_TRACE(("%s: Enter\n", __func__));
1068
1069 /* Reject if down */
1070 if (!dhd->pub.up || (dhd->pub.busstate == DHD_BUS_DOWN)) {
1071 DHD_ERROR(("%s: xmit rejected pub.up=%d busstate=%d\n",
1072 __func__, dhd->pub.up, dhd->pub.busstate));
1073 netif_stop_queue(net);
1074 return -ENODEV;
1075 }
1076
1077 ifidx = dhd_net2idx(dhd, net);
1078 if (ifidx == DHD_BAD_IF) {
1079 DHD_ERROR(("%s: bad ifidx %d\n", __func__, ifidx));
1080 netif_stop_queue(net);
1081 return -ENODEV;
1082 }
1083
1084 /* Make sure there's enough room for any header */
1085 if (skb_headroom(skb) < dhd->pub.hdrlen) {
1086 struct sk_buff *skb2;
1087
1088 DHD_INFO(("%s: insufficient headroom\n",
1089 dhd_ifname(&dhd->pub, ifidx)));
1090 dhd->pub.tx_realloc++;
1091 skb2 = skb_realloc_headroom(skb, dhd->pub.hdrlen);
1092 dev_kfree_skb(skb);
1093 skb = skb2;
1094 if (skb == NULL) {
1095 DHD_ERROR(("%s: skb_realloc_headroom failed\n",
1096 dhd_ifname(&dhd->pub, ifidx)));
1097 ret = -ENOMEM;
1098 goto done;
1099 }
1100 }
1101
1102 /* Convert to packet */
1103 pktbuf = PKTFRMNATIVE(dhd->pub.osh, skb);
1104 if (!pktbuf) {
1105 DHD_ERROR(("%s: PKTFRMNATIVE failed\n",
1106 dhd_ifname(&dhd->pub, ifidx)));
1107 dev_kfree_skb_any(skb);
1108 ret = -ENOMEM;
1109 goto done;
1110 }
1111
1112 ret = dhd_sendpkt(&dhd->pub, ifidx, pktbuf);
1113
1114 done:
1115 if (ret)
1116 dhd->pub.dstats.tx_dropped++;
1117 else
1118 dhd->pub.tx_packets++;
1119
1120 /* Return ok: we always eat the packet */
1121 return 0;
1122 }
1123
1124 void dhd_txflowcontrol(dhd_pub_t *dhdp, int ifidx, bool state)
1125 {
1126 struct net_device *net;
1127 dhd_info_t *dhd = dhdp->info;
1128
1129 DHD_TRACE(("%s: Enter\n", __func__));
1130
1131 dhdp->txoff = state;
1132 ASSERT(dhd && dhd->iflist[ifidx]);
1133 net = dhd->iflist[ifidx]->net;
1134 if (state == ON)
1135 netif_stop_queue(net);
1136 else
1137 netif_wake_queue(net);
1138 }
1139
1140 void dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, struct sk_buff *pktbuf,
1141 int numpkt)
1142 {
1143 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
1144 struct sk_buff *skb;
1145 unsigned char *eth;
1146 uint len;
1147 void *data;
1148 struct sk_buff *pnext, *save_pktbuf;
1149 int i;
1150 dhd_if_t *ifp;
1151 wl_event_msg_t event;
1152
1153 DHD_TRACE(("%s: Enter\n", __func__));
1154
1155 save_pktbuf = pktbuf;
1156
1157 for (i = 0; pktbuf && i < numpkt; i++, pktbuf = pnext) {
1158
1159 pnext = pktbuf->next;
1160 pktbuf->next = NULL;
1161
1162 skb = PKTTONATIVE(dhdp->osh, pktbuf);
1163
1164 /* Get the protocol, maintain skb around eth_type_trans()
1165 * The main reason for this hack is for the limitation of
1166 * Linux 2.4 where 'eth_type_trans' uses the
1167 * 'net->hard_header_len'
1168 * to perform skb_pull inside vs ETH_HLEN. Since to avoid
1169 * coping of the packet coming from the network stack to add
1170 * BDC, Hardware header etc, during network interface
1171 * registration
1172 * we set the 'net->hard_header_len' to ETH_HLEN + extra space
1173 * required
1174 * for BDC, Hardware header etc. and not just the ETH_HLEN
1175 */
1176 eth = skb->data;
1177 len = skb->len;
1178
1179 ifp = dhd->iflist[ifidx];
1180 if (ifp == NULL)
1181 ifp = dhd->iflist[0];
1182
1183 ASSERT(ifp);
1184 skb->dev = ifp->net;
1185 skb->protocol = eth_type_trans(skb, skb->dev);
1186
1187 if (skb->pkt_type == PACKET_MULTICAST)
1188 dhd->pub.rx_multicast++;
1189
1190 skb->data = eth;
1191 skb->len = len;
1192
1193 /* Strip header, count, deliver upward */
1194 skb_pull(skb, ETH_HLEN);
1195
1196 /* Process special event packets and then discard them */
1197 if (ntohs(skb->protocol) == ETH_P_BRCM)
1198 dhd_wl_host_event(dhd, &ifidx,
1199 skb_mac_header(skb),
1200 &event, &data);
1201
1202 ASSERT(ifidx < DHD_MAX_IFS && dhd->iflist[ifidx]);
1203 if (dhd->iflist[ifidx] && !dhd->iflist[ifidx]->state)
1204 ifp = dhd->iflist[ifidx];
1205
1206 if (ifp->net)
1207 ifp->net->last_rx = jiffies;
1208
1209 dhdp->dstats.rx_bytes += skb->len;
1210 dhdp->rx_packets++; /* Local count */
1211
1212 if (in_interrupt()) {
1213 netif_rx(skb);
1214 } else {
1215 /* If the receive is not processed inside an ISR,
1216 * the softirqd must be woken explicitly to service
1217 * the NET_RX_SOFTIRQ. In 2.6 kernels, this is handled
1218 * by netif_rx_ni(), but in earlier kernels, we need
1219 * to do it manually.
1220 */
1221 netif_rx_ni(skb);
1222 }
1223 }
1224 }
1225
1226 void dhd_event(struct dhd_info *dhd, char *evpkt, int evlen, int ifidx)
1227 {
1228 /* Linux version has nothing to do */
1229 return;
1230 }
1231
1232 void dhd_txcomplete(dhd_pub_t *dhdp, struct sk_buff *txp, bool success)
1233 {
1234 uint ifidx;
1235 dhd_info_t *dhd = (dhd_info_t *) (dhdp->info);
1236 struct ethhdr *eh;
1237 u16 type;
1238
1239 dhd_prot_hdrpull(dhdp, &ifidx, txp);
1240
1241 eh = (struct ethhdr *)(txp->data);
1242 type = ntohs(eh->h_proto);
1243
1244 if (type == ETH_P_PAE)
1245 atomic_dec(&dhd->pend_8021x_cnt);
1246
1247 }
1248
1249 static struct net_device_stats *dhd_get_stats(struct net_device *net)
1250 {
1251 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1252 dhd_if_t *ifp;
1253 int ifidx;
1254
1255 DHD_TRACE(("%s: Enter\n", __func__));
1256
1257 ifidx = dhd_net2idx(dhd, net);
1258 if (ifidx == DHD_BAD_IF)
1259 return NULL;
1260
1261 ifp = dhd->iflist[ifidx];
1262 ASSERT(dhd && ifp);
1263
1264 if (dhd->pub.up) {
1265 /* Use the protocol to get dongle stats */
1266 dhd_prot_dstats(&dhd->pub);
1267 }
1268
1269 /* Copy dongle stats to net device stats */
1270 ifp->stats.rx_packets = dhd->pub.dstats.rx_packets;
1271 ifp->stats.tx_packets = dhd->pub.dstats.tx_packets;
1272 ifp->stats.rx_bytes = dhd->pub.dstats.rx_bytes;
1273 ifp->stats.tx_bytes = dhd->pub.dstats.tx_bytes;
1274 ifp->stats.rx_errors = dhd->pub.dstats.rx_errors;
1275 ifp->stats.tx_errors = dhd->pub.dstats.tx_errors;
1276 ifp->stats.rx_dropped = dhd->pub.dstats.rx_dropped;
1277 ifp->stats.tx_dropped = dhd->pub.dstats.tx_dropped;
1278 ifp->stats.multicast = dhd->pub.dstats.multicast;
1279
1280 return &ifp->stats;
1281 }
1282
1283 static int dhd_watchdog_thread(void *data)
1284 {
1285 dhd_info_t *dhd = (dhd_info_t *) data;
1286
1287 /* This thread doesn't need any user-level access,
1288 * so get rid of all our resources
1289 */
1290 #ifdef DHD_SCHED
1291 if (dhd_watchdog_prio > 0) {
1292 struct sched_param param;
1293 param.sched_priority = (dhd_watchdog_prio < MAX_RT_PRIO) ?
1294 dhd_watchdog_prio : (MAX_RT_PRIO - 1);
1295 setScheduler(current, SCHED_FIFO, &param);
1296 }
1297 #endif /* DHD_SCHED */
1298
1299 allow_signal(SIGTERM);
1300 /* Run until signal received */
1301 while (1) {
1302 if (kthread_should_stop())
1303 break;
1304 if (down_interruptible(&dhd->watchdog_sem) == 0) {
1305 if (dhd->pub.dongle_reset == false) {
1306 /* Call the bus module watchdog */
1307 dhd_bus_watchdog(&dhd->pub);
1308 }
1309 /* Count the tick for reference */
1310 dhd->pub.tickcnt++;
1311 } else
1312 break;
1313 }
1314 return 0;
1315 }
1316
1317 static void dhd_watchdog(unsigned long data)
1318 {
1319 dhd_info_t *dhd = (dhd_info_t *) data;
1320
1321 if (dhd->watchdog_tsk) {
1322 up(&dhd->watchdog_sem);
1323
1324 /* Reschedule the watchdog */
1325 if (dhd->wd_timer_valid) {
1326 mod_timer(&dhd->timer,
1327 jiffies + dhd_watchdog_ms * HZ / 1000);
1328 }
1329 return;
1330 }
1331
1332 /* Call the bus module watchdog */
1333 dhd_bus_watchdog(&dhd->pub);
1334
1335 /* Count the tick for reference */
1336 dhd->pub.tickcnt++;
1337
1338 /* Reschedule the watchdog */
1339 if (dhd->wd_timer_valid)
1340 mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000);
1341 }
1342
1343 static int dhd_dpc_thread(void *data)
1344 {
1345 dhd_info_t *dhd = (dhd_info_t *) data;
1346
1347 /* This thread doesn't need any user-level access,
1348 * so get rid of all our resources
1349 */
1350 #ifdef DHD_SCHED
1351 if (dhd_dpc_prio > 0) {
1352 struct sched_param param;
1353 param.sched_priority =
1354 (dhd_dpc_prio <
1355 MAX_RT_PRIO) ? dhd_dpc_prio : (MAX_RT_PRIO - 1);
1356 setScheduler(current, SCHED_FIFO, &param);
1357 }
1358 #endif /* DHD_SCHED */
1359
1360 allow_signal(SIGTERM);
1361 /* Run until signal received */
1362 while (1) {
1363 if (kthread_should_stop())
1364 break;
1365 if (down_interruptible(&dhd->dpc_sem) == 0) {
1366 /* Call bus dpc unless it indicated down
1367 (then clean stop) */
1368 if (dhd->pub.busstate != DHD_BUS_DOWN) {
1369 if (dhd_bus_dpc(dhd->pub.bus)) {
1370 up(&dhd->dpc_sem);
1371 }
1372 } else {
1373 dhd_bus_stop(dhd->pub.bus, true);
1374 }
1375 } else
1376 break;
1377 }
1378 return 0;
1379 }
1380
1381 static void dhd_dpc(unsigned long data)
1382 {
1383 dhd_info_t *dhd;
1384
1385 dhd = (dhd_info_t *) data;
1386
1387 /* Call bus dpc unless it indicated down (then clean stop) */
1388 if (dhd->pub.busstate != DHD_BUS_DOWN) {
1389 if (dhd_bus_dpc(dhd->pub.bus))
1390 tasklet_schedule(&dhd->tasklet);
1391 } else {
1392 dhd_bus_stop(dhd->pub.bus, true);
1393 }
1394 }
1395
1396 void dhd_sched_dpc(dhd_pub_t *dhdp)
1397 {
1398 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
1399
1400 if (dhd->dpc_tsk) {
1401 up(&dhd->dpc_sem);
1402 return;
1403 }
1404
1405 tasklet_schedule(&dhd->tasklet);
1406 }
1407
1408 #ifdef TOE
1409 /* Retrieve current toe component enables, which are kept
1410 as a bitmap in toe_ol iovar */
1411 static int dhd_toe_get(dhd_info_t *dhd, int ifidx, u32 *toe_ol)
1412 {
1413 wl_ioctl_t ioc;
1414 char buf[32];
1415 int ret;
1416
1417 memset(&ioc, 0, sizeof(ioc));
1418
1419 ioc.cmd = WLC_GET_VAR;
1420 ioc.buf = buf;
1421 ioc.len = (uint) sizeof(buf);
1422 ioc.set = false;
1423
1424 strcpy(buf, "toe_ol");
1425 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1426 if (ret < 0) {
1427 /* Check for older dongle image that doesn't support toe_ol */
1428 if (ret == -EIO) {
1429 DHD_ERROR(("%s: toe not supported by device\n",
1430 dhd_ifname(&dhd->pub, ifidx)));
1431 return -EOPNOTSUPP;
1432 }
1433
1434 DHD_INFO(("%s: could not get toe_ol: ret=%d\n",
1435 dhd_ifname(&dhd->pub, ifidx), ret));
1436 return ret;
1437 }
1438
1439 memcpy(toe_ol, buf, sizeof(u32));
1440 return 0;
1441 }
1442
1443 /* Set current toe component enables in toe_ol iovar,
1444 and set toe global enable iovar */
1445 static int dhd_toe_set(dhd_info_t *dhd, int ifidx, u32 toe_ol)
1446 {
1447 wl_ioctl_t ioc;
1448 char buf[32];
1449 int toe, ret;
1450
1451 memset(&ioc, 0, sizeof(ioc));
1452
1453 ioc.cmd = WLC_SET_VAR;
1454 ioc.buf = buf;
1455 ioc.len = (uint) sizeof(buf);
1456 ioc.set = true;
1457
1458 /* Set toe_ol as requested */
1459
1460 strcpy(buf, "toe_ol");
1461 memcpy(&buf[sizeof("toe_ol")], &toe_ol, sizeof(u32));
1462
1463 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1464 if (ret < 0) {
1465 DHD_ERROR(("%s: could not set toe_ol: ret=%d\n",
1466 dhd_ifname(&dhd->pub, ifidx), ret));
1467 return ret;
1468 }
1469
1470 /* Enable toe globally only if any components are enabled. */
1471
1472 toe = (toe_ol != 0);
1473
1474 strcpy(buf, "toe");
1475 memcpy(&buf[sizeof("toe")], &toe, sizeof(u32));
1476
1477 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1478 if (ret < 0) {
1479 DHD_ERROR(("%s: could not set toe: ret=%d\n",
1480 dhd_ifname(&dhd->pub, ifidx), ret));
1481 return ret;
1482 }
1483
1484 return 0;
1485 }
1486 #endif /* TOE */
1487
1488 static void dhd_ethtool_get_drvinfo(struct net_device *net,
1489 struct ethtool_drvinfo *info)
1490 {
1491 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1492
1493 sprintf(info->driver, DRV_MODULE_NAME);
1494 sprintf(info->version, "%lu", dhd->pub.drv_version);
1495 sprintf(info->fw_version, "%s", wl_cfg80211_get_fwname());
1496 sprintf(info->bus_info, "%s", dev_name(&wl_cfg80211_get_sdio_func()->dev));
1497 }
1498
1499 struct ethtool_ops dhd_ethtool_ops = {
1500 .get_drvinfo = dhd_ethtool_get_drvinfo
1501 };
1502
1503 static int dhd_ethtool(dhd_info_t *dhd, void *uaddr)
1504 {
1505 struct ethtool_drvinfo info;
1506 char drvname[sizeof(info.driver)];
1507 u32 cmd;
1508 #ifdef TOE
1509 struct ethtool_value edata;
1510 u32 toe_cmpnt, csum_dir;
1511 int ret;
1512 #endif
1513
1514 DHD_TRACE(("%s: Enter\n", __func__));
1515
1516 /* all ethtool calls start with a cmd word */
1517 if (copy_from_user(&cmd, uaddr, sizeof(u32)))
1518 return -EFAULT;
1519
1520 switch (cmd) {
1521 case ETHTOOL_GDRVINFO:
1522 /* Copy out any request driver name */
1523 if (copy_from_user(&info, uaddr, sizeof(info)))
1524 return -EFAULT;
1525 strncpy(drvname, info.driver, sizeof(info.driver));
1526 drvname[sizeof(info.driver) - 1] = '\0';
1527
1528 /* clear struct for return */
1529 memset(&info, 0, sizeof(info));
1530 info.cmd = cmd;
1531
1532 /* if dhd requested, identify ourselves */
1533 if (strcmp(drvname, "?dhd") == 0) {
1534 sprintf(info.driver, "dhd");
1535 strcpy(info.version, EPI_VERSION_STR);
1536 }
1537
1538 /* otherwise, require dongle to be up */
1539 else if (!dhd->pub.up) {
1540 DHD_ERROR(("%s: dongle is not up\n", __func__));
1541 return -ENODEV;
1542 }
1543
1544 /* finally, report dongle driver type */
1545 else if (dhd->pub.iswl)
1546 sprintf(info.driver, "wl");
1547 else
1548 sprintf(info.driver, "xx");
1549
1550 sprintf(info.version, "%lu", dhd->pub.drv_version);
1551 if (copy_to_user(uaddr, &info, sizeof(info)))
1552 return -EFAULT;
1553 DHD_CTL(("%s: given %*s, returning %s\n", __func__,
1554 (int)sizeof(drvname), drvname, info.driver));
1555 break;
1556
1557 #ifdef TOE
1558 /* Get toe offload components from dongle */
1559 case ETHTOOL_GRXCSUM:
1560 case ETHTOOL_GTXCSUM:
1561 ret = dhd_toe_get(dhd, 0, &toe_cmpnt);
1562 if (ret < 0)
1563 return ret;
1564
1565 csum_dir =
1566 (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
1567
1568 edata.cmd = cmd;
1569 edata.data = (toe_cmpnt & csum_dir) ? 1 : 0;
1570
1571 if (copy_to_user(uaddr, &edata, sizeof(edata)))
1572 return -EFAULT;
1573 break;
1574
1575 /* Set toe offload components in dongle */
1576 case ETHTOOL_SRXCSUM:
1577 case ETHTOOL_STXCSUM:
1578 if (copy_from_user(&edata, uaddr, sizeof(edata)))
1579 return -EFAULT;
1580
1581 /* Read the current settings, update and write back */
1582 ret = dhd_toe_get(dhd, 0, &toe_cmpnt);
1583 if (ret < 0)
1584 return ret;
1585
1586 csum_dir =
1587 (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
1588
1589 if (edata.data != 0)
1590 toe_cmpnt |= csum_dir;
1591 else
1592 toe_cmpnt &= ~csum_dir;
1593
1594 ret = dhd_toe_set(dhd, 0, toe_cmpnt);
1595 if (ret < 0)
1596 return ret;
1597
1598 /* If setting TX checksum mode, tell Linux the new mode */
1599 if (cmd == ETHTOOL_STXCSUM) {
1600 if (edata.data)
1601 dhd->iflist[0]->net->features |=
1602 NETIF_F_IP_CSUM;
1603 else
1604 dhd->iflist[0]->net->features &=
1605 ~NETIF_F_IP_CSUM;
1606 }
1607
1608 break;
1609 #endif /* TOE */
1610
1611 default:
1612 return -EOPNOTSUPP;
1613 }
1614
1615 return 0;
1616 }
1617
1618 static int dhd_ioctl_entry(struct net_device *net, struct ifreq *ifr, int cmd)
1619 {
1620 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1621 dhd_ioctl_t ioc;
1622 int bcmerror = 0;
1623 int buflen = 0;
1624 void *buf = NULL;
1625 uint driver = 0;
1626 int ifidx;
1627 bool is_set_key_cmd;
1628
1629 ifidx = dhd_net2idx(dhd, net);
1630 DHD_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __func__, ifidx, cmd));
1631
1632 if (ifidx == DHD_BAD_IF)
1633 return -1;
1634
1635 #if defined(CONFIG_WIRELESS_EXT)
1636 /* linux wireless extensions */
1637 if ((cmd >= SIOCIWFIRST) && (cmd <= SIOCIWLAST)) {
1638 /* may recurse, do NOT lock */
1639 return wl_iw_ioctl(net, ifr, cmd);
1640 }
1641 #endif /* defined(CONFIG_WIRELESS_EXT) */
1642
1643 if (cmd == SIOCETHTOOL)
1644 return dhd_ethtool(dhd, (void *)ifr->ifr_data);
1645
1646 if (cmd != SIOCDEVPRIVATE)
1647 return -EOPNOTSUPP;
1648
1649 memset(&ioc, 0, sizeof(ioc));
1650
1651 /* Copy the ioc control structure part of ioctl request */
1652 if (copy_from_user(&ioc, ifr->ifr_data, sizeof(wl_ioctl_t))) {
1653 bcmerror = -EINVAL;
1654 goto done;
1655 }
1656
1657 /* Copy out any buffer passed */
1658 if (ioc.buf) {
1659 buflen = min_t(int, ioc.len, DHD_IOCTL_MAXLEN);
1660 /* optimization for direct ioctl calls from kernel */
1661 /*
1662 if (segment_eq(get_fs(), KERNEL_DS)) {
1663 buf = ioc.buf;
1664 } else {
1665 */
1666 {
1667 buf = kmalloc(buflen, GFP_ATOMIC);
1668 if (!buf) {
1669 bcmerror = -ENOMEM;
1670 goto done;
1671 }
1672 if (copy_from_user(buf, ioc.buf, buflen)) {
1673 bcmerror = -EINVAL;
1674 goto done;
1675 }
1676 }
1677 }
1678
1679 /* To differentiate between wl and dhd read 4 more byes */
1680 if ((copy_from_user(&driver, (char *)ifr->ifr_data + sizeof(wl_ioctl_t),
1681 sizeof(uint)) != 0)) {
1682 bcmerror = -EINVAL;
1683 goto done;
1684 }
1685
1686 if (!capable(CAP_NET_ADMIN)) {
1687 bcmerror = -EPERM;
1688 goto done;
1689 }
1690
1691 /* check for local dhd ioctl and handle it */
1692 if (driver == DHD_IOCTL_MAGIC) {
1693 bcmerror = dhd_ioctl((void *)&dhd->pub, &ioc, buf, buflen);
1694 if (bcmerror)
1695 dhd->pub.bcmerror = bcmerror;
1696 goto done;
1697 }
1698
1699 /* send to dongle (must be up, and wl) */
1700 if ((dhd->pub.busstate != DHD_BUS_DATA)) {
1701 DHD_ERROR(("%s DONGLE_DOWN,__func__\n", __func__));
1702 bcmerror = -EIO;
1703 goto done;
1704 }
1705
1706 if (!dhd->pub.iswl) {
1707 bcmerror = -EIO;
1708 goto done;
1709 }
1710
1711 /* Intercept WLC_SET_KEY IOCTL - serialize M4 send and set key IOCTL to
1712 * prevent M4 encryption.
1713 */
1714 is_set_key_cmd = ((ioc.cmd == WLC_SET_KEY) ||
1715 ((ioc.cmd == WLC_SET_VAR) &&
1716 !(strncmp("wsec_key", ioc.buf, 9))) ||
1717 ((ioc.cmd == WLC_SET_VAR) &&
1718 !(strncmp("bsscfg:wsec_key", ioc.buf, 15))));
1719 if (is_set_key_cmd)
1720 dhd_wait_pend8021x(net);
1721
1722 bcmerror =
1723 dhd_prot_ioctl(&dhd->pub, ifidx, (wl_ioctl_t *)&ioc, buf, buflen);
1724
1725 done:
1726 if (!bcmerror && buf && ioc.buf) {
1727 if (copy_to_user(ioc.buf, buf, buflen))
1728 bcmerror = -EFAULT;
1729 }
1730
1731 kfree(buf);
1732
1733 if (bcmerror > 0)
1734 bcmerror = 0;
1735
1736 return bcmerror;
1737 }
1738
1739 static int dhd_stop(struct net_device *net)
1740 {
1741 #if !defined(IGNORE_ETH0_DOWN)
1742 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1743
1744 DHD_TRACE(("%s: Enter\n", __func__));
1745 if (IS_CFG80211_FAVORITE()) {
1746 wl_cfg80211_down();
1747 }
1748 if (dhd->pub.up == 0)
1749 return 0;
1750
1751 /* Set state and stop OS transmissions */
1752 dhd->pub.up = 0;
1753 netif_stop_queue(net);
1754 #else
1755 DHD_ERROR(("BYPASS %s:due to BRCM compilation : under investigation\n",
1756 __func__));
1757 #endif /* !defined(IGNORE_ETH0_DOWN) */
1758
1759 return 0;
1760 }
1761
1762 static int dhd_open(struct net_device *net)
1763 {
1764 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1765 #ifdef TOE
1766 u32 toe_ol;
1767 #endif
1768 int ifidx = dhd_net2idx(dhd, net);
1769 s32 ret = 0;
1770
1771 DHD_TRACE(("%s: ifidx %d\n", __func__, ifidx));
1772
1773 if (ifidx == 0) { /* do it only for primary eth0 */
1774
1775 /* try to bring up bus */
1776 ret = dhd_bus_start(&dhd->pub);
1777 if (ret != 0) {
1778 DHD_ERROR(("%s: failed with code %d\n", __func__, ret));
1779 return -1;
1780 }
1781 atomic_set(&dhd->pend_8021x_cnt, 0);
1782
1783 memcpy(net->dev_addr, dhd->pub.mac, ETH_ALEN);
1784
1785 #ifdef TOE
1786 /* Get current TOE mode from dongle */
1787 if (dhd_toe_get(dhd, ifidx, &toe_ol) >= 0
1788 && (toe_ol & TOE_TX_CSUM_OL) != 0)
1789 dhd->iflist[ifidx]->net->features |= NETIF_F_IP_CSUM;
1790 else
1791 dhd->iflist[ifidx]->net->features &= ~NETIF_F_IP_CSUM;
1792 #endif
1793 }
1794 /* Allow transmit calls */
1795 netif_start_queue(net);
1796 dhd->pub.up = 1;
1797 if (IS_CFG80211_FAVORITE()) {
1798 if (unlikely(wl_cfg80211_up())) {
1799 DHD_ERROR(("%s: failed to bring up cfg80211\n",
1800 __func__));
1801 return -1;
1802 }
1803 }
1804
1805 return ret;
1806 }
1807
1808 int
1809 dhd_add_if(dhd_info_t *dhd, int ifidx, void *handle, char *name,
1810 u8 *mac_addr, u32 flags, u8 bssidx)
1811 {
1812 dhd_if_t *ifp;
1813
1814 DHD_TRACE(("%s: idx %d, handle->%p\n", __func__, ifidx, handle));
1815
1816 ASSERT(dhd && (ifidx < DHD_MAX_IFS));
1817
1818 ifp = dhd->iflist[ifidx];
1819 if (!ifp && !(ifp = kmalloc(sizeof(dhd_if_t), GFP_ATOMIC))) {
1820 DHD_ERROR(("%s: OOM - dhd_if_t\n", __func__));
1821 return -ENOMEM;
1822 }
1823
1824 memset(ifp, 0, sizeof(dhd_if_t));
1825 ifp->info = dhd;
1826 dhd->iflist[ifidx] = ifp;
1827 strlcpy(ifp->name, name, IFNAMSIZ);
1828 if (mac_addr != NULL)
1829 memcpy(&ifp->mac_addr, mac_addr, ETH_ALEN);
1830
1831 if (handle == NULL) {
1832 ifp->state = WLC_E_IF_ADD;
1833 ifp->idx = ifidx;
1834 ASSERT(dhd->sysioc_tsk);
1835 up(&dhd->sysioc_sem);
1836 } else
1837 ifp->net = (struct net_device *)handle;
1838
1839 return 0;
1840 }
1841
1842 void dhd_del_if(dhd_info_t *dhd, int ifidx)
1843 {
1844 dhd_if_t *ifp;
1845
1846 DHD_TRACE(("%s: idx %d\n", __func__, ifidx));
1847
1848 ASSERT(dhd && ifidx && (ifidx < DHD_MAX_IFS));
1849 ifp = dhd->iflist[ifidx];
1850 if (!ifp) {
1851 DHD_ERROR(("%s: Null interface\n", __func__));
1852 return;
1853 }
1854
1855 ifp->state = WLC_E_IF_DEL;
1856 ifp->idx = ifidx;
1857 ASSERT(dhd->sysioc_tsk);
1858 up(&dhd->sysioc_sem);
1859 }
1860
1861 dhd_pub_t *dhd_attach(struct dhd_bus *bus, uint bus_hdrlen)
1862 {
1863 dhd_info_t *dhd = NULL;
1864 struct net_device *net;
1865
1866 DHD_TRACE(("%s: Enter\n", __func__));
1867 /* updates firmware nvram path if it was provided as module
1868 paramters */
1869 if ((firmware_path != NULL) && (firmware_path[0] != '\0'))
1870 strcpy(fw_path, firmware_path);
1871 if ((nvram_path != NULL) && (nvram_path[0] != '\0'))
1872 strcpy(nv_path, nvram_path);
1873
1874 /* Allocate etherdev, including space for private structure */
1875 net = alloc_etherdev(sizeof(dhd));
1876 if (!net) {
1877 DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
1878 goto fail;
1879 }
1880
1881 /* Allocate primary dhd_info */
1882 dhd = kzalloc(sizeof(dhd_info_t), GFP_ATOMIC);
1883 if (!dhd) {
1884 DHD_ERROR(("%s: OOM - alloc dhd_info\n", __func__));
1885 goto fail;
1886 }
1887
1888 /*
1889 * Save the dhd_info into the priv
1890 */
1891 memcpy(netdev_priv(net), &dhd, sizeof(dhd));
1892
1893 /* Set network interface name if it was provided as module parameter */
1894 if (iface_name[0]) {
1895 int len;
1896 char ch;
1897 strncpy(net->name, iface_name, IFNAMSIZ);
1898 net->name[IFNAMSIZ - 1] = 0;
1899 len = strlen(net->name);
1900 ch = net->name[len - 1];
1901 if ((ch > '9' || ch < '0') && (len < IFNAMSIZ - 2))
1902 strcat(net->name, "%d");
1903 }
1904
1905 if (dhd_add_if(dhd, 0, (void *)net, net->name, NULL, 0, 0) ==
1906 DHD_BAD_IF)
1907 goto fail;
1908
1909 net->netdev_ops = NULL;
1910 sema_init(&dhd->proto_sem, 1);
1911 /* Initialize other structure content */
1912 init_waitqueue_head(&dhd->ioctl_resp_wait);
1913 init_waitqueue_head(&dhd->ctrl_wait);
1914
1915 /* Initialize the spinlocks */
1916 spin_lock_init(&dhd->sdlock);
1917 spin_lock_init(&dhd->txqlock);
1918
1919 /* Link to info module */
1920 dhd->pub.info = dhd;
1921
1922 /* Link to bus module */
1923 dhd->pub.bus = bus;
1924 dhd->pub.hdrlen = bus_hdrlen;
1925
1926 /* Attach and link in the protocol */
1927 if (dhd_prot_attach(&dhd->pub) != 0) {
1928 DHD_ERROR(("dhd_prot_attach failed\n"));
1929 goto fail;
1930 }
1931 #if defined(CONFIG_WIRELESS_EXT)
1932 /* Attach and link in the iw */
1933 if (wl_iw_attach(net, (void *)&dhd->pub) != 0) {
1934 DHD_ERROR(("wl_iw_attach failed\n"));
1935 goto fail;
1936 }
1937 #endif /* defined(CONFIG_WIRELESS_EXT) */
1938
1939 /* Attach and link in the cfg80211 */
1940 if (IS_CFG80211_FAVORITE()) {
1941 if (unlikely(wl_cfg80211_attach(net, &dhd->pub))) {
1942 DHD_ERROR(("wl_cfg80211_attach failed\n"));
1943 goto fail;
1944 }
1945 if (!NO_FW_REQ()) {
1946 strcpy(fw_path, wl_cfg80211_get_fwname());
1947 strcpy(nv_path, wl_cfg80211_get_nvramname());
1948 }
1949 }
1950
1951 /* Set up the watchdog timer */
1952 init_timer(&dhd->timer);
1953 dhd->timer.data = (unsigned long) dhd;
1954 dhd->timer.function = dhd_watchdog;
1955
1956 /* Initialize thread based operation and lock */
1957 sema_init(&dhd->sdsem, 1);
1958 if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0))
1959 dhd->threads_only = true;
1960 else
1961 dhd->threads_only = false;
1962
1963 if (dhd_dpc_prio >= 0) {
1964 /* Initialize watchdog thread */
1965 sema_init(&dhd->watchdog_sem, 0);
1966 dhd->watchdog_tsk = kthread_run(dhd_watchdog_thread, dhd,
1967 "dhd_watchdog");
1968 if (IS_ERR(dhd->watchdog_tsk)) {
1969 printk(KERN_WARNING
1970 "dhd_watchdog thread failed to start\n");
1971 dhd->watchdog_tsk = NULL;
1972 }
1973 } else {
1974 dhd->watchdog_tsk = NULL;
1975 }
1976
1977 /* Set up the bottom half handler */
1978 if (dhd_dpc_prio >= 0) {
1979 /* Initialize DPC thread */
1980 sema_init(&dhd->dpc_sem, 0);
1981 dhd->dpc_tsk = kthread_run(dhd_dpc_thread, dhd, "dhd_dpc");
1982 if (IS_ERR(dhd->dpc_tsk)) {
1983 printk(KERN_WARNING
1984 "dhd_dpc thread failed to start\n");
1985 dhd->dpc_tsk = NULL;
1986 }
1987 } else {
1988 tasklet_init(&dhd->tasklet, dhd_dpc, (unsigned long) dhd);
1989 dhd->dpc_tsk = NULL;
1990 }
1991
1992 if (dhd_sysioc) {
1993 sema_init(&dhd->sysioc_sem, 0);
1994 dhd->sysioc_tsk = kthread_run(_dhd_sysioc_thread, dhd,
1995 "_dhd_sysioc");
1996 if (IS_ERR(dhd->sysioc_tsk)) {
1997 printk(KERN_WARNING
1998 "_dhd_sysioc thread failed to start\n");
1999 dhd->sysioc_tsk = NULL;
2000 }
2001 } else
2002 dhd->sysioc_tsk = NULL;
2003
2004 /*
2005 * Save the dhd_info into the priv
2006 */
2007 memcpy(netdev_priv(net), &dhd, sizeof(dhd));
2008
2009 #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2010 g_bus = bus;
2011 #endif
2012 #if defined(CONFIG_PM_SLEEP)
2013 atomic_set(&dhd_mmc_suspend, false);
2014 if (!IS_CFG80211_FAVORITE())
2015 register_pm_notifier(&dhd_sleep_pm_notifier);
2016 #endif /* defined(CONFIG_PM_SLEEP) */
2017 /* && defined(DHD_GPL) */
2018 /* Init lock suspend to prevent kernel going to suspend */
2019 #ifdef CONFIG_HAS_EARLYSUSPEND
2020 dhd->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 20;
2021 dhd->early_suspend.suspend = dhd_early_suspend;
2022 dhd->early_suspend.resume = dhd_late_resume;
2023 register_early_suspend(&dhd->early_suspend);
2024 #endif
2025
2026 return &dhd->pub;
2027
2028 fail:
2029 if (net)
2030 free_netdev(net);
2031 if (dhd)
2032 dhd_detach(&dhd->pub);
2033
2034 return NULL;
2035 }
2036
2037 int dhd_bus_start(dhd_pub_t *dhdp)
2038 {
2039 int ret = -1;
2040 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
2041 #ifdef EMBEDDED_PLATFORM
2042 char iovbuf[WL_EVENTING_MASK_LEN + 12]; /* Room for "event_msgs" +
2043 '\0' + bitvec */
2044 #endif /* EMBEDDED_PLATFORM */
2045
2046 ASSERT(dhd);
2047
2048 DHD_TRACE(("%s:\n", __func__));
2049
2050 /* try to download image and nvram to the dongle */
2051 if (dhd->pub.busstate == DHD_BUS_DOWN) {
2052 if (!(dhd_bus_download_firmware(dhd->pub.bus,
2053 fw_path, nv_path))) {
2054 DHD_ERROR(("%s: dhdsdio_probe_download failed. "
2055 "firmware = %s nvram = %s\n",
2056 __func__, fw_path, nv_path));
2057 return -1;
2058 }
2059 }
2060
2061 /* Start the watchdog timer */
2062 dhd->pub.tickcnt = 0;
2063 dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
2064
2065 /* Bring up the bus */
2066 ret = dhd_bus_init(&dhd->pub, true);
2067 if (ret != 0) {
2068 DHD_ERROR(("%s, dhd_bus_init failed %d\n", __func__, ret));
2069 return ret;
2070 }
2071 #if defined(OOB_INTR_ONLY)
2072 /* Host registration for OOB interrupt */
2073 if (bcmsdh_register_oob_intr(dhdp)) {
2074 del_timer_sync(&dhd->timer);
2075 dhd->wd_timer_valid = false;
2076 DHD_ERROR(("%s Host failed to resgister for OOB\n", __func__));
2077 return -ENODEV;
2078 }
2079
2080 /* Enable oob at firmware */
2081 dhd_enable_oob_intr(dhd->pub.bus, true);
2082 #endif /* defined(OOB_INTR_ONLY) */
2083
2084 /* If bus is not ready, can't come up */
2085 if (dhd->pub.busstate != DHD_BUS_DATA) {
2086 del_timer_sync(&dhd->timer);
2087 dhd->wd_timer_valid = false;
2088 DHD_ERROR(("%s failed bus is not ready\n", __func__));
2089 return -ENODEV;
2090 }
2091 #ifdef EMBEDDED_PLATFORM
2092 bcm_mkiovar("event_msgs", dhdp->eventmask, WL_EVENTING_MASK_LEN, iovbuf,
2093 sizeof(iovbuf));
2094 dhdcdc_query_ioctl(dhdp, 0, WLC_GET_VAR, iovbuf, sizeof(iovbuf));
2095 memcpy(dhdp->eventmask, iovbuf, WL_EVENTING_MASK_LEN);
2096
2097 setbit(dhdp->eventmask, WLC_E_SET_SSID);
2098 setbit(dhdp->eventmask, WLC_E_PRUNE);
2099 setbit(dhdp->eventmask, WLC_E_AUTH);
2100 setbit(dhdp->eventmask, WLC_E_REASSOC);
2101 setbit(dhdp->eventmask, WLC_E_REASSOC_IND);
2102 setbit(dhdp->eventmask, WLC_E_DEAUTH_IND);
2103 setbit(dhdp->eventmask, WLC_E_DISASSOC_IND);
2104 setbit(dhdp->eventmask, WLC_E_DISASSOC);
2105 setbit(dhdp->eventmask, WLC_E_JOIN);
2106 setbit(dhdp->eventmask, WLC_E_ASSOC_IND);
2107 setbit(dhdp->eventmask, WLC_E_PSK_SUP);
2108 setbit(dhdp->eventmask, WLC_E_LINK);
2109 setbit(dhdp->eventmask, WLC_E_NDIS_LINK);
2110 setbit(dhdp->eventmask, WLC_E_MIC_ERROR);
2111 setbit(dhdp->eventmask, WLC_E_PMKID_CACHE);
2112 setbit(dhdp->eventmask, WLC_E_TXFAIL);
2113 setbit(dhdp->eventmask, WLC_E_JOIN_START);
2114 setbit(dhdp->eventmask, WLC_E_SCAN_COMPLETE);
2115 #ifdef PNO_SUPPORT
2116 setbit(dhdp->eventmask, WLC_E_PFN_NET_FOUND);
2117 #endif /* PNO_SUPPORT */
2118
2119 /* enable dongle roaming event */
2120
2121 dhdp->pktfilter_count = 1;
2122 /* Setup filter to allow only unicast */
2123 dhdp->pktfilter[0] = "100 0 0 0 0x01 0x00";
2124 #endif /* EMBEDDED_PLATFORM */
2125
2126 /* Bus is ready, do any protocol initialization */
2127 ret = dhd_prot_init(&dhd->pub);
2128 if (ret < 0)
2129 return ret;
2130
2131 return 0;
2132 }
2133
2134 int
2135 dhd_iovar(dhd_pub_t *pub, int ifidx, char *name, char *cmd_buf, uint cmd_len,
2136 int set)
2137 {
2138 char buf[strlen(name) + 1 + cmd_len];
2139 int len = sizeof(buf);
2140 wl_ioctl_t ioc;
2141 int ret;
2142
2143 len = bcm_mkiovar(name, cmd_buf, cmd_len, buf, len);
2144
2145 memset(&ioc, 0, sizeof(ioc));
2146
2147 ioc.cmd = set ? WLC_SET_VAR : WLC_GET_VAR;
2148 ioc.buf = buf;
2149 ioc.len = len;
2150 ioc.set = set;
2151
2152 ret = dhd_prot_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);
2153 if (!set && ret >= 0)
2154 memcpy(cmd_buf, buf, cmd_len);
2155
2156 return ret;
2157 }
2158
2159 static struct net_device_ops dhd_ops_pri = {
2160 .ndo_open = dhd_open,
2161 .ndo_stop = dhd_stop,
2162 .ndo_get_stats = dhd_get_stats,
2163 .ndo_do_ioctl = dhd_ioctl_entry,
2164 .ndo_start_xmit = dhd_start_xmit,
2165 .ndo_set_mac_address = dhd_set_mac_address,
2166 .ndo_set_multicast_list = dhd_set_multicast_list
2167 };
2168
2169 int dhd_net_attach(dhd_pub_t *dhdp, int ifidx)
2170 {
2171 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
2172 struct net_device *net;
2173 u8 temp_addr[ETH_ALEN] = {
2174 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33};
2175
2176 DHD_TRACE(("%s: ifidx %d\n", __func__, ifidx));
2177
2178 ASSERT(dhd && dhd->iflist[ifidx]);
2179
2180 net = dhd->iflist[ifidx]->net;
2181 ASSERT(net);
2182
2183 ASSERT(!net->netdev_ops);
2184 net->netdev_ops = &dhd_ops_pri;
2185
2186 /*
2187 * We have to use the primary MAC for virtual interfaces
2188 */
2189 if (ifidx != 0) {
2190 /* for virtual interfaces use the primary MAC */
2191 memcpy(temp_addr, dhd->pub.mac, ETH_ALEN);
2192
2193 }
2194
2195 if (ifidx == 1) {
2196 DHD_TRACE(("%s ACCESS POINT MAC: \n", __func__));
2197 /* ACCESSPOINT INTERFACE CASE */
2198 temp_addr[0] |= 0X02; /* set bit 2 ,
2199 - Locally Administered address */
2200
2201 }
2202 net->hard_header_len = ETH_HLEN + dhd->pub.hdrlen;
2203 net->ethtool_ops = &dhd_ethtool_ops;
2204
2205 dhd->pub.rxsz = net->mtu + net->hard_header_len + dhd->pub.hdrlen;
2206
2207 memcpy(net->dev_addr, temp_addr, ETH_ALEN);
2208
2209 if (register_netdev(net) != 0) {
2210 DHD_ERROR(("%s: couldn't register the net device\n",
2211 __func__));
2212 goto fail;
2213 }
2214
2215 DHD_INFO(("%s: Broadcom Dongle Host Driver\n", net->name));
2216
2217 return 0;
2218
2219 fail:
2220 net->netdev_ops = NULL;
2221 return -EBADE;
2222 }
2223
2224 void dhd_bus_detach(dhd_pub_t *dhdp)
2225 {
2226 dhd_info_t *dhd;
2227
2228 DHD_TRACE(("%s: Enter\n", __func__));
2229
2230 if (dhdp) {
2231 dhd = (dhd_info_t *) dhdp->info;
2232 if (dhd) {
2233 /* Stop the protocol module */
2234 dhd_prot_stop(&dhd->pub);
2235
2236 /* Stop the bus module */
2237 dhd_bus_stop(dhd->pub.bus, true);
2238 #if defined(OOB_INTR_ONLY)
2239 bcmsdh_unregister_oob_intr();
2240 #endif /* defined(OOB_INTR_ONLY) */
2241
2242 /* Clear the watchdog timer */
2243 del_timer_sync(&dhd->timer);
2244 dhd->wd_timer_valid = false;
2245 }
2246 }
2247 }
2248
2249 void dhd_detach(dhd_pub_t *dhdp)
2250 {
2251 dhd_info_t *dhd;
2252
2253 DHD_TRACE(("%s: Enter\n", __func__));
2254
2255 if (dhdp) {
2256 dhd = (dhd_info_t *) dhdp->info;
2257 if (dhd) {
2258 dhd_if_t *ifp;
2259 int i;
2260
2261 #if defined(CONFIG_HAS_EARLYSUSPEND)
2262 if (dhd->early_suspend.suspend)
2263 unregister_early_suspend(&dhd->early_suspend);
2264 #endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
2265
2266 for (i = 1; i < DHD_MAX_IFS; i++)
2267 if (dhd->iflist[i])
2268 dhd_del_if(dhd, i);
2269
2270 ifp = dhd->iflist[0];
2271 ASSERT(ifp);
2272 if (ifp->net->netdev_ops == &dhd_ops_pri) {
2273 dhd_stop(ifp->net);
2274 unregister_netdev(ifp->net);
2275 }
2276
2277 if (dhd->watchdog_tsk) {
2278 send_sig(SIGTERM, dhd->watchdog_tsk, 1);
2279 kthread_stop(dhd->watchdog_tsk);
2280 dhd->watchdog_tsk = NULL;
2281 }
2282
2283 if (dhd->dpc_tsk) {
2284 send_sig(SIGTERM, dhd->dpc_tsk, 1);
2285 kthread_stop(dhd->dpc_tsk);
2286 dhd->dpc_tsk = NULL;
2287 } else
2288 tasklet_kill(&dhd->tasklet);
2289
2290 if (dhd->sysioc_tsk) {
2291 send_sig(SIGTERM, dhd->sysioc_tsk, 1);
2292 kthread_stop(dhd->sysioc_tsk);
2293 dhd->sysioc_tsk = NULL;
2294 }
2295
2296 dhd_bus_detach(dhdp);
2297
2298 if (dhdp->prot)
2299 dhd_prot_detach(dhdp);
2300
2301 #if defined(CONFIG_WIRELESS_EXT)
2302 wl_iw_detach();
2303 #endif /* (CONFIG_WIRELESS_EXT) */
2304
2305 if (IS_CFG80211_FAVORITE())
2306 wl_cfg80211_detach();
2307
2308 #if defined(CONFIG_PM_SLEEP)
2309 if (!IS_CFG80211_FAVORITE())
2310 unregister_pm_notifier(&dhd_sleep_pm_notifier);
2311 #endif /* defined(CONFIG_PM_SLEEP) */
2312 /* && defined(DHD_GPL) */
2313 free_netdev(ifp->net);
2314 kfree(ifp);
2315 kfree(dhd);
2316 }
2317 }
2318 }
2319
2320 static void __exit dhd_module_cleanup(void)
2321 {
2322 DHD_TRACE(("%s: Enter\n", __func__));
2323
2324 dhd_bus_unregister();
2325 #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2326 wifi_del_dev();
2327 #endif
2328 /* Call customer gpio to turn off power with WL_REG_ON signal */
2329 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
2330 }
2331
2332 static int __init dhd_module_init(void)
2333 {
2334 int error;
2335
2336 DHD_TRACE(("%s: Enter\n", __func__));
2337
2338 /* Sanity check on the module parameters */
2339 do {
2340 /* Both watchdog and DPC as tasklets are ok */
2341 if ((dhd_watchdog_prio < 0) && (dhd_dpc_prio < 0))
2342 break;
2343
2344 /* If both watchdog and DPC are threads, TX must be deferred */
2345 if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0)
2346 && dhd_deferred_tx)
2347 break;
2348
2349 DHD_ERROR(("Invalid module parameters.\n"));
2350 return -EINVAL;
2351 } while (0);
2352 /* Call customer gpio to turn on power with WL_REG_ON signal */
2353 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_ON);
2354
2355 #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2356 sema_init(&wifi_control_sem, 0);
2357
2358 error = wifi_add_dev();
2359 if (error) {
2360 DHD_ERROR(("%s: platform_driver_register failed\n", __func__));
2361 goto failed;
2362 }
2363
2364 /* Waiting callback after platform_driver_register is done or
2365 exit with error */
2366 if (down_timeout(&wifi_control_sem, msecs_to_jiffies(1000)) != 0) {
2367 printk(KERN_ERR "%s: platform_driver_register timeout\n",
2368 __func__);
2369 /* remove device */
2370 wifi_del_dev();
2371 goto failed;
2372 }
2373 #endif /* #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
2374
2375 error = dhd_bus_register();
2376
2377 if (error) {
2378 DHD_ERROR(("%s: sdio_register_driver failed\n", __func__));
2379 goto failed;
2380 }
2381 return error;
2382
2383 failed:
2384 /* turn off power and exit */
2385 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
2386 return -EINVAL;
2387 }
2388
2389 module_init(dhd_module_init);
2390 module_exit(dhd_module_cleanup);
2391
2392 /*
2393 * OS specific functions required to implement DHD driver in OS independent way
2394 */
2395 int dhd_os_proto_block(dhd_pub_t *pub)
2396 {
2397 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2398
2399 if (dhd) {
2400 down(&dhd->proto_sem);
2401 return 1;
2402 }
2403 return 0;
2404 }
2405
2406 int dhd_os_proto_unblock(dhd_pub_t *pub)
2407 {
2408 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2409
2410 if (dhd) {
2411 up(&dhd->proto_sem);
2412 return 1;
2413 }
2414
2415 return 0;
2416 }
2417
2418 unsigned int dhd_os_get_ioctl_resp_timeout(void)
2419 {
2420 return (unsigned int)dhd_ioctl_timeout_msec;
2421 }
2422
2423 void dhd_os_set_ioctl_resp_timeout(unsigned int timeout_msec)
2424 {
2425 dhd_ioctl_timeout_msec = (int)timeout_msec;
2426 }
2427
2428 int dhd_os_ioctl_resp_wait(dhd_pub_t *pub, uint *condition, bool *pending)
2429 {
2430 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2431 DECLARE_WAITQUEUE(wait, current);
2432 int timeout = dhd_ioctl_timeout_msec;
2433
2434 /* Convert timeout in millsecond to jiffies */
2435 timeout = timeout * HZ / 1000;
2436
2437 /* Wait until control frame is available */
2438 add_wait_queue(&dhd->ioctl_resp_wait, &wait);
2439 set_current_state(TASK_INTERRUPTIBLE);
2440
2441 while (!(*condition) && (!signal_pending(current) && timeout))
2442 timeout = schedule_timeout(timeout);
2443
2444 if (signal_pending(current))
2445 *pending = true;
2446
2447 set_current_state(TASK_RUNNING);
2448 remove_wait_queue(&dhd->ioctl_resp_wait, &wait);
2449
2450 return timeout;
2451 }
2452
2453 int dhd_os_ioctl_resp_wake(dhd_pub_t *pub)
2454 {
2455 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2456
2457 if (waitqueue_active(&dhd->ioctl_resp_wait))
2458 wake_up_interruptible(&dhd->ioctl_resp_wait);
2459
2460 return 0;
2461 }
2462
2463 void dhd_os_wd_timer(void *bus, uint wdtick)
2464 {
2465 dhd_pub_t *pub = bus;
2466 static uint save_dhd_watchdog_ms;
2467 dhd_info_t *dhd = (dhd_info_t *) pub->info;
2468
2469 /* don't start the wd until fw is loaded */
2470 if (pub->busstate == DHD_BUS_DOWN)
2471 return;
2472
2473 /* Totally stop the timer */
2474 if (!wdtick && dhd->wd_timer_valid == true) {
2475 del_timer_sync(&dhd->timer);
2476 dhd->wd_timer_valid = false;
2477 save_dhd_watchdog_ms = wdtick;
2478 return;
2479 }
2480
2481 if (wdtick) {
2482 dhd_watchdog_ms = (uint) wdtick;
2483
2484 if (save_dhd_watchdog_ms != dhd_watchdog_ms) {
2485
2486 if (dhd->wd_timer_valid == true)
2487 /* Stop timer and restart at new value */
2488 del_timer_sync(&dhd->timer);
2489
2490 /* Create timer again when watchdog period is
2491 dynamically changed or in the first instance
2492 */
2493 dhd->timer.expires =
2494 jiffies + dhd_watchdog_ms * HZ / 1000;
2495 add_timer(&dhd->timer);
2496
2497 } else {
2498 /* Re arm the timer, at last watchdog period */
2499 mod_timer(&dhd->timer,
2500 jiffies + dhd_watchdog_ms * HZ / 1000);
2501 }
2502
2503 dhd->wd_timer_valid = true;
2504 save_dhd_watchdog_ms = wdtick;
2505 }
2506 }
2507
2508 void *dhd_os_open_image(char *filename)
2509 {
2510 struct file *fp;
2511
2512 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2513 return wl_cfg80211_request_fw(filename);
2514
2515 fp = filp_open(filename, O_RDONLY, 0);
2516 /*
2517 * 2.6.11 (FC4) supports filp_open() but later revs don't?
2518 * Alternative:
2519 * fp = open_namei(AT_FDCWD, filename, O_RD, 0);
2520 * ???
2521 */
2522 if (IS_ERR(fp))
2523 fp = NULL;
2524
2525 return fp;
2526 }
2527
2528 int dhd_os_get_image_block(char *buf, int len, void *image)
2529 {
2530 struct file *fp = (struct file *)image;
2531 int rdlen;
2532
2533 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2534 return wl_cfg80211_read_fw(buf, len);
2535
2536 if (!image)
2537 return 0;
2538
2539 rdlen = kernel_read(fp, fp->f_pos, buf, len);
2540 if (rdlen > 0)
2541 fp->f_pos += rdlen;
2542
2543 return rdlen;
2544 }
2545
2546 void dhd_os_close_image(void *image)
2547 {
2548 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2549 return wl_cfg80211_release_fw();
2550 if (image)
2551 filp_close((struct file *)image, NULL);
2552 }
2553
2554 void dhd_os_sdlock(dhd_pub_t *pub)
2555 {
2556 dhd_info_t *dhd;
2557
2558 dhd = (dhd_info_t *) (pub->info);
2559
2560 if (dhd->threads_only)
2561 down(&dhd->sdsem);
2562 else
2563 spin_lock_bh(&dhd->sdlock);
2564 }
2565
2566 void dhd_os_sdunlock(dhd_pub_t *pub)
2567 {
2568 dhd_info_t *dhd;
2569
2570 dhd = (dhd_info_t *) (pub->info);
2571
2572 if (dhd->threads_only)
2573 up(&dhd->sdsem);
2574 else
2575 spin_unlock_bh(&dhd->sdlock);
2576 }
2577
2578 void dhd_os_sdlock_txq(dhd_pub_t *pub)
2579 {
2580 dhd_info_t *dhd;
2581
2582 dhd = (dhd_info_t *) (pub->info);
2583 spin_lock_bh(&dhd->txqlock);
2584 }
2585
2586 void dhd_os_sdunlock_txq(dhd_pub_t *pub)
2587 {
2588 dhd_info_t *dhd;
2589
2590 dhd = (dhd_info_t *) (pub->info);
2591 spin_unlock_bh(&dhd->txqlock);
2592 }
2593
2594 void dhd_os_sdlock_rxq(dhd_pub_t *pub)
2595 {
2596 }
2597
2598 void dhd_os_sdunlock_rxq(dhd_pub_t *pub)
2599 {
2600 }
2601
2602 void dhd_os_sdtxlock(dhd_pub_t *pub)
2603 {
2604 dhd_os_sdlock(pub);
2605 }
2606
2607 void dhd_os_sdtxunlock(dhd_pub_t *pub)
2608 {
2609 dhd_os_sdunlock(pub);
2610 }
2611
2612 static int
2613 dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
2614 wl_event_msg_t *event, void **data)
2615 {
2616 int bcmerror = 0;
2617
2618 ASSERT(dhd != NULL);
2619
2620 bcmerror = wl_host_event(dhd, ifidx, pktdata, event, data);
2621 if (bcmerror != 0)
2622 return bcmerror;
2623
2624 #if defined(CONFIG_WIRELESS_EXT)
2625 if (!IS_CFG80211_FAVORITE()) {
2626 if ((dhd->iflist[*ifidx] == NULL)
2627 || (dhd->iflist[*ifidx]->net == NULL)) {
2628 DHD_ERROR(("%s Exit null pointer\n", __func__));
2629 return bcmerror;
2630 }
2631
2632 if (dhd->iflist[*ifidx]->net)
2633 wl_iw_event(dhd->iflist[*ifidx]->net, event, *data);
2634 }
2635 #endif /* defined(CONFIG_WIRELESS_EXT) */
2636
2637 if (IS_CFG80211_FAVORITE()) {
2638 ASSERT(dhd->iflist[*ifidx] != NULL);
2639 ASSERT(dhd->iflist[*ifidx]->net != NULL);
2640 if (dhd->iflist[*ifidx]->net)
2641 wl_cfg80211_event(dhd->iflist[*ifidx]->net, event,
2642 *data);
2643 }
2644
2645 return bcmerror;
2646 }
2647
2648 /* send up locally generated event */
2649 void dhd_sendup_event(dhd_pub_t *dhdp, wl_event_msg_t *event, void *data)
2650 {
2651 switch (be32_to_cpu(event->event_type)) {
2652 default:
2653 break;
2654 }
2655 }
2656
2657 void dhd_wait_for_event(dhd_pub_t *dhd, bool *lockvar)
2658 {
2659 struct dhd_info *dhdinfo = dhd->info;
2660 dhd_os_sdunlock(dhd);
2661 wait_event_interruptible_timeout(dhdinfo->ctrl_wait,
2662 (*lockvar == false), HZ * 2);
2663 dhd_os_sdlock(dhd);
2664 return;
2665 }
2666
2667 void dhd_wait_event_wakeup(dhd_pub_t *dhd)
2668 {
2669 struct dhd_info *dhdinfo = dhd->info;
2670 if (waitqueue_active(&dhdinfo->ctrl_wait))
2671 wake_up_interruptible(&dhdinfo->ctrl_wait);
2672 return;
2673 }
2674
2675 int dhd_dev_reset(struct net_device *dev, u8 flag)
2676 {
2677 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2678
2679 /* Turning off watchdog */
2680 if (flag)
2681 dhd_os_wd_timer(&dhd->pub, 0);
2682
2683 dhd_bus_devreset(&dhd->pub, flag);
2684
2685 /* Turning on watchdog back */
2686 if (!flag)
2687 dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
2688 DHD_ERROR(("%s: WLAN OFF DONE\n", __func__));
2689
2690 return 1;
2691 }
2692
2693 int net_os_set_suspend_disable(struct net_device *dev, int val)
2694 {
2695 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2696 int ret = 0;
2697
2698 if (dhd) {
2699 ret = dhd->pub.suspend_disable_flag;
2700 dhd->pub.suspend_disable_flag = val;
2701 }
2702 return ret;
2703 }
2704
2705 int net_os_set_suspend(struct net_device *dev, int val)
2706 {
2707 int ret = 0;
2708 #if defined(CONFIG_HAS_EARLYSUSPEND)
2709 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2710
2711 if (dhd) {
2712 dhd_os_proto_block(&dhd->pub);
2713 ret = dhd_set_suspend(val, &dhd->pub);
2714 dhd_os_proto_unblock(&dhd->pub);
2715 }
2716 #endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
2717 return ret;
2718 }
2719
2720 int net_os_set_dtim_skip(struct net_device *dev, int val)
2721 {
2722 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2723
2724 if (dhd)
2725 dhd->pub.dtim_skip = val;
2726
2727 return 0;
2728 }
2729
2730 int net_os_set_packet_filter(struct net_device *dev, int val)
2731 {
2732 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2733 int ret = 0;
2734
2735 /* Packet filtering is set only if we still in early-suspend and
2736 * we need either to turn it ON or turn it OFF
2737 * We can always turn it OFF in case of early-suspend, but we turn it
2738 * back ON only if suspend_disable_flag was not set
2739 */
2740 if (dhd && dhd->pub.up) {
2741 dhd_os_proto_block(&dhd->pub);
2742 if (dhd->pub.in_suspend) {
2743 if (!val || (val && !dhd->pub.suspend_disable_flag))
2744 dhd_set_packet_filter(val, &dhd->pub);
2745 }
2746 dhd_os_proto_unblock(&dhd->pub);
2747 }
2748 return ret;
2749 }
2750
2751 void dhd_dev_init_ioctl(struct net_device *dev)
2752 {
2753 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2754
2755 dhd_preinit_ioctls(&dhd->pub);
2756 }
2757
2758 #ifdef PNO_SUPPORT
2759 /* Linux wrapper to call common dhd_pno_clean */
2760 int dhd_dev_pno_reset(struct net_device *dev)
2761 {
2762 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2763
2764 return dhd_pno_clean(&dhd->pub);
2765 }
2766
2767 /* Linux wrapper to call common dhd_pno_enable */
2768 int dhd_dev_pno_enable(struct net_device *dev, int pfn_enabled)
2769 {
2770 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2771
2772 return dhd_pno_enable(&dhd->pub, pfn_enabled);
2773 }
2774
2775 /* Linux wrapper to call common dhd_pno_set */
2776 int
2777 dhd_dev_pno_set(struct net_device *dev, wlc_ssid_t *ssids_local, int nssid,
2778 unsigned char scan_fr)
2779 {
2780 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2781
2782 return dhd_pno_set(&dhd->pub, ssids_local, nssid, scan_fr);
2783 }
2784
2785 /* Linux wrapper to get pno status */
2786 int dhd_dev_get_pno_status(struct net_device *dev)
2787 {
2788 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2789
2790 return dhd_pno_get_status(&dhd->pub);
2791 }
2792
2793 #endif /* PNO_SUPPORT */
2794
2795 static int dhd_get_pend_8021x_cnt(dhd_info_t *dhd)
2796 {
2797 return atomic_read(&dhd->pend_8021x_cnt);
2798 }
2799
2800 #define MAX_WAIT_FOR_8021X_TX 10
2801
2802 int dhd_wait_pend8021x(struct net_device *dev)
2803 {
2804 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2805 int timeout = 10 * HZ / 1000;
2806 int ntimes = MAX_WAIT_FOR_8021X_TX;
2807 int pend = dhd_get_pend_8021x_cnt(dhd);
2808
2809 while (ntimes && pend) {
2810 if (pend) {
2811 set_current_state(TASK_INTERRUPTIBLE);
2812 schedule_timeout(timeout);
2813 set_current_state(TASK_RUNNING);
2814 ntimes--;
2815 }
2816 pend = dhd_get_pend_8021x_cnt(dhd);
2817 }
2818 return pend;
2819 }
2820
2821 void wl_os_wd_timer(struct net_device *ndev, uint wdtick)
2822 {
2823 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(ndev);
2824
2825 dhd_os_wd_timer(&dhd->pub, wdtick);
2826 }
2827
2828 #ifdef DHD_DEBUG
2829 int write_to_file(dhd_pub_t *dhd, u8 *buf, int size)
2830 {
2831 int ret = 0;
2832 struct file *fp;
2833 mm_segment_t old_fs;
2834 loff_t pos = 0;
2835
2836 /* change to KERNEL_DS address limit */
2837 old_fs = get_fs();
2838 set_fs(KERNEL_DS);
2839
2840 /* open file to write */
2841 fp = filp_open("/tmp/mem_dump", O_WRONLY | O_CREAT, 0640);
2842 if (!fp) {
2843 DHD_ERROR(("%s: open file error\n", __func__));
2844 ret = -1;
2845 goto exit;
2846 }
2847
2848 /* Write buf to file */
2849 fp->f_op->write(fp, buf, size, &pos);
2850
2851 exit:
2852 /* free buf before return */
2853 kfree(buf);
2854 /* close file before return */
2855 if (fp)
2856 filp_close(fp, current->files);
2857 /* restore previous address limit */
2858 set_fs(old_fs);
2859
2860 return ret;
2861 }
2862 #endif /* DHD_DEBUG */
Linux kernel - Deliverables
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