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staging: brcm80211: wl_cfg80211.c: fix 'assignment in if condition'
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / staging / brcm80211 / brcmfmac / dhd_linux.c
CommitLineData
cf2b4488
HP		 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 <typedefs.h>
21#include <linuxver.h>
22#include <osl.h>
23
24#include <linux/init.h>
25#include <linux/kernel.h>
26#include <linux/slab.h>
27#include <linux/skbuff.h>
28#include <linux/netdevice.h>
29#include <linux/etherdevice.h>
93ad12cf 30#include <linux/mmc/sdio_func.h>
cf2b4488
HP		 31#include <linux/random.h>
32#include <linux/spinlock.h>
33#include <linux/ethtool.h>
34#include <linux/fcntl.h>
35#include <linux/fs.h>
36
93ad12cf 37#include <linux/uaccess.h>
cf2b4488
HP		 38#include <bcmutils.h>
39#include <bcmendian.h>
40
41#include <proto/ethernet.h>
42#include <dngl_stats.h>
43#include <dhd.h>
44#include <dhd_bus.h>
45#include <dhd_proto.h>
46#include <dhd_dbg.h>
47
48#ifdef CONFIG_CFG80211
49#include <wl_cfg80211.h>
50#endif
51
52#define EPI_VERSION_STR "4.218.248.5"
53
54#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
55#include <linux/wifi_tiwlan.h>
56
57struct semaphore wifi_control_sem;
58
59struct dhd_bus *g_bus;
60
5f782dee
JC		 61static struct wifi_platform_data *wifi_control_data;
62static struct resource *wifi_irqres;
cf2b4488
HP		 63
64int wifi_get_irq_number(unsigned long *irq_flags_ptr)
65{
66 if (wifi_irqres) {
67 *irq_flags_ptr = wifi_irqres->flags & IRQF_TRIGGER_MASK;
68 return (int)wifi_irqres->start;
69 }
70#ifdef CUSTOM_OOB_GPIO_NUM
71 return CUSTOM_OOB_GPIO_NUM;
72#else
73 return -1;
74#endif
75}
76
77int wifi_set_carddetect(int on)
78{
79 printk(KERN_ERR "%s = %d\n", __func__, on);
80 if (wifi_control_data && wifi_control_data->set_carddetect)
81 wifi_control_data->set_carddetect(on);
82 return 0;
83}
84
85int wifi_set_power(int on, unsigned long msec)
86{
87 printk(KERN_ERR "%s = %d\n", __func__, on);
88 if (wifi_control_data && wifi_control_data->set_power)
89 wifi_control_data->set_power(on);
90 if (msec)
91 mdelay(msec);
92 return 0;
93}
94
95int wifi_set_reset(int on, unsigned long msec)
96{
97 printk(KERN_ERR "%s = %d\n", __func__, on);
98 if (wifi_control_data && wifi_control_data->set_reset)
99 wifi_control_data->set_reset(on);
100 if (msec)
101 mdelay(msec);
102 return 0;
103}
104
105static int wifi_probe(struct platform_device *pdev)
106{
107 struct wifi_platform_data *wifi_ctrl =
108 (struct wifi_platform_data *)(pdev->dev.platform_data);
109
110 printk(KERN_ERR "## %s\n", __func__);
111 wifi_irqres =
112 platform_get_resource_byname(pdev, IORESOURCE_IRQ,
113 "bcm4329_wlan_irq");
114 wifi_control_data = wifi_ctrl;
115
116 wifi_set_power(1, 0); /* Power On */
117 wifi_set_carddetect(1); /* CardDetect (0->1) */
118
119 up(&wifi_control_sem);
120 return 0;
121}
122
123static int wifi_remove(struct platform_device *pdev)
124{
125 struct wifi_platform_data *wifi_ctrl =
126 (struct wifi_platform_data *)(pdev->dev.platform_data);
127
128 printk(KERN_ERR "## %s\n", __func__);
129 wifi_control_data = wifi_ctrl;
130
131 wifi_set_carddetect(0); /* CardDetect (1->0) */
132 wifi_set_power(0, 0); /* Power Off */
133
134 up(&wifi_control_sem);
135 return 0;
136}
137
138static int wifi_suspend(struct platform_device *pdev, pm_message_t state)
139{
140 DHD_TRACE(("##> %s\n", __func__));
141 return 0;
142}
143
144static int wifi_resume(struct platform_device *pdev)
145{
146 DHD_TRACE(("##> %s\n", __func__));
147 return 0;
148}
149
150static struct platform_driver wifi_device = {
151 .probe = wifi_probe,
152 .remove = wifi_remove,
153 .suspend = wifi_suspend,
154 .resume = wifi_resume,
155 .driver = {
156 .name = "bcm4329_wlan",
157 }
158};
159
160int wifi_add_dev(void)
161{
162 DHD_TRACE(("## Calling platform_driver_register\n"));
163 return platform_driver_register(&wifi_device);
164}
165
166void wifi_del_dev(void)
167{
168 DHD_TRACE(("## Unregister platform_driver_register\n"));
169 platform_driver_unregister(&wifi_device);
170}
171#endif /* defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
172
173#if defined(CONFIG_PM_SLEEP)
174#include <linux/suspend.h>
175volatile bool dhd_mmc_suspend = FALSE;
176DECLARE_WAIT_QUEUE_HEAD(dhd_dpc_wait);
177#endif /* defined(CONFIG_PM_SLEEP) */
178
179#if defined(OOB_INTR_ONLY)
180extern void dhd_enable_oob_intr(struct dhd_bus *bus, bool enable);
181#endif /* defined(OOB_INTR_ONLY) */
182
183MODULE_AUTHOR("Broadcom Corporation");
184MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac driver.");
185MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac cards");
186MODULE_LICENSE("Dual BSD/GPL");
187
93ad12cf 188#define DRV_MODULE_NAME "brcmfmac"
189
cf2b4488
HP		 190/* Linux wireless extension support */
191#if defined(CONFIG_WIRELESS_EXT)
192#include <wl_iw.h>
193extern wl_iw_extra_params_t g_wl_iw_params;
194#endif /* defined(CONFIG_WIRELESS_EXT) */
195
196#if defined(CONFIG_HAS_EARLYSUSPEND)
197#include <linux/earlysuspend.h>
198extern int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf,
199 uint len);
200#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
201
202#ifdef PKT_FILTER_SUPPORT
203extern void dhd_pktfilter_offload_set(dhd_pub_t *dhd, char *arg);
204extern void dhd_pktfilter_offload_enable(dhd_pub_t *dhd, char *arg, int enable,
205 int master_mode);
206#endif
207
208/* Interface control information */
209typedef struct dhd_if {
210 struct dhd_info *info; /* back pointer to dhd_info */
211 /* OS/stack specifics */
212 struct net_device *net;
213 struct net_device_stats stats;
214 int idx; /* iface idx in dongle */
215 int state; /* interface state */
216 uint subunit; /* subunit */
3fd79f7c 217 u8 mac_addr[ETHER_ADDR_LEN]; /* assigned MAC address */
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HP		 218 bool attached; /* Delayed attachment when unset */
219 bool txflowcontrol; /* Per interface flow control indicator */
220 char name[IFNAMSIZ + 1]; /* linux interface name */
221} dhd_if_t;
222
223/* Local private structure (extension of pub) */
224typedef struct dhd_info {
225#if defined(CONFIG_WIRELESS_EXT)
226 wl_iw_t iw; /* wireless extensions state (must be first) */
227#endif /* defined(CONFIG_WIRELESS_EXT) */
228
229 dhd_pub_t pub;
230
231 /* OS/stack specifics */
232 dhd_if_t *iflist[DHD_MAX_IFS];
233
234 struct semaphore proto_sem;
235 wait_queue_head_t ioctl_resp_wait;
236 struct timer_list timer;
237 bool wd_timer_valid;
238 struct tasklet_struct tasklet;
239 spinlock_t sdlock;
240 spinlock_t txqlock;
241 /* Thread based operation */
242 bool threads_only;
243 struct semaphore sdsem;
244 long watchdog_pid;
245 struct semaphore watchdog_sem;
246 struct completion watchdog_exited;
247 long dpc_pid;
248 struct semaphore dpc_sem;
249 struct completion dpc_exited;
250
251 /* Thread to issue ioctl for multicast */
252 long sysioc_pid;
253 struct semaphore sysioc_sem;
254 struct completion sysioc_exited;
255 bool set_multicast;
256 bool set_macaddress;
257 struct ether_addr macvalue;
258 wait_queue_head_t ctrl_wait;
259 atomic_t pend_8021x_cnt;
260
261#ifdef CONFIG_HAS_EARLYSUSPEND
262 struct early_suspend early_suspend;
263#endif /* CONFIG_HAS_EARLYSUSPEND */
264} dhd_info_t;
265
266/* Definitions to provide path to the firmware and nvram
267 * example nvram_path[MOD_PARAM_PATHLEN]="/projects/wlan/nvram.txt"
268 */
269char firmware_path[MOD_PARAM_PATHLEN];
270char nvram_path[MOD_PARAM_PATHLEN];
271
272/* load firmware and/or nvram values from the filesystem */
273module_param_string(firmware_path, firmware_path, MOD_PARAM_PATHLEN, 0);
274module_param_string(nvram_path, nvram_path, MOD_PARAM_PATHLEN, 0);
275
276/* Error bits */
277module_param(dhd_msg_level, int, 0);
278
279/* Spawn a thread for system ioctls (set mac, set mcast) */
280uint dhd_sysioc = TRUE;
281module_param(dhd_sysioc, uint, 0);
282
283/* Watchdog interval */
284uint dhd_watchdog_ms = 10;
285module_param(dhd_watchdog_ms, uint, 0);
286
287#ifdef DHD_DEBUG
288/* Console poll interval */
6998d337 289uint dhd_console_ms;
cf2b4488
HP		 290module_param(dhd_console_ms, uint, 0);
291#endif /* DHD_DEBUG */
292
293/* ARP offload agent mode : Enable ARP Host Auto-Reply
294and ARP Peer Auto-Reply */
295uint dhd_arp_mode = 0xb;
296module_param(dhd_arp_mode, uint, 0);
297
298/* ARP offload enable */
299uint dhd_arp_enable = TRUE;
300module_param(dhd_arp_enable, uint, 0);
301
302/* Global Pkt filter enable control */
303uint dhd_pkt_filter_enable = TRUE;
304module_param(dhd_pkt_filter_enable, uint, 0);
305
306/* Pkt filter init setup */
6998d337 307uint dhd_pkt_filter_init;
cf2b4488
HP		 308module_param(dhd_pkt_filter_init, uint, 0);
309
310/* Pkt filter mode control */
311uint dhd_master_mode = TRUE;
312module_param(dhd_master_mode, uint, 1);
313
314/* Watchdog thread priority, -1 to use kernel timer */
315int dhd_watchdog_prio = 97;
316module_param(dhd_watchdog_prio, int, 0);
317
318/* DPC thread priority, -1 to use tasklet */
319int dhd_dpc_prio = 98;
320module_param(dhd_dpc_prio, int, 0);
321
322/* DPC thread priority, -1 to use tasklet */
323extern int dhd_dongle_memsize;
324module_param(dhd_dongle_memsize, int, 0);
325
326/* Contorl fw roaming */
327#ifdef CUSTOMER_HW2
6998d337 328uint dhd_roam;
cf2b4488
HP		 329#else
330uint dhd_roam = 1;
331#endif
332
333/* Control radio state */
334uint dhd_radio_up = 1;
335
336/* Network inteface name */
337char iface_name[IFNAMSIZ];
338module_param_string(iface_name, iface_name, IFNAMSIZ, 0);
339
5a505da9
JC		 340#define DAEMONIZE(a) \
341 do { \
342 daemonize(a); \
343 allow_signal(SIGKILL); \
344 allow_signal(SIGTERM); \
345 } while (0);
cf2b4488
HP		 346
347#define BLOCKABLE() (!in_atomic())
348
349/* The following are specific to the SDIO dongle */
350
351/* IOCTL response timeout */
352int dhd_ioctl_timeout_msec = IOCTL_RESP_TIMEOUT;
353
354/* Idle timeout for backplane clock */
355int dhd_idletime = DHD_IDLETIME_TICKS;
356module_param(dhd_idletime, int, 0);
357
358/* Use polling */
359uint dhd_poll = FALSE;
360module_param(dhd_poll, uint, 0);
361
362#ifdef CONFIG_CFG80211
363/* Use cfg80211 */
364uint dhd_cfg80211 = TRUE;
365module_param(dhd_cfg80211, uint, 0);
366#endif
367
368/* Use interrupts */
369uint dhd_intr = TRUE;
370module_param(dhd_intr, uint, 0);
371
372/* SDIO Drive Strength (in milliamps) */
373uint dhd_sdiod_drive_strength = 6;
374module_param(dhd_sdiod_drive_strength, uint, 0);
375
376/* Tx/Rx bounds */
377extern uint dhd_txbound;
378extern uint dhd_rxbound;
379module_param(dhd_txbound, uint, 0);
380module_param(dhd_rxbound, uint, 0);
381
382/* Deferred transmits */
383extern uint dhd_deferred_tx;
384module_param(dhd_deferred_tx, uint, 0);
385
386#ifdef SDTEST
387/* Echo packet generator (pkts/s) */
6998d337 388uint dhd_pktgen;
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HP		 389module_param(dhd_pktgen, uint, 0);
390
391/* Echo packet len (0 => sawtooth, max 2040) */
6998d337 392uint dhd_pktgen_len;
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HP		 393module_param(dhd_pktgen_len, uint, 0);
394#endif
395
396#ifdef CONFIG_CFG80211
397#define FAVORITE_WIFI_CP (!!dhd_cfg80211)
398#define IS_CFG80211_FAVORITE() FAVORITE_WIFI_CP
399#define DBG_CFG80211_GET() ((dhd_cfg80211 & WL_DBG_MASK) >> 1)
400#define NO_FW_REQ() (dhd_cfg80211 & 0x80)
401#endif
402
403/* Version string to report */
404#ifdef DHD_DEBUG
405#define DHD_COMPILED "\nCompiled in " SRCBASE
406#else
407#define DHD_COMPILED
408#endif
409
410static char dhd_version[] = "Dongle Host Driver, version " EPI_VERSION_STR
411#ifdef DHD_DEBUG
412"\nCompiled in " " on " __DATE__ " at " __TIME__
413#endif
414;
415
416#if defined(CONFIG_WIRELESS_EXT)
417struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev);
418#endif /* defined(CONFIG_WIRELESS_EXT) */
419
3deea904 420static void dhd_dpc(unsigned long data);
cf2b4488
HP		 421/* forward decl */
422extern int dhd_wait_pend8021x(struct net_device *dev);
423
424#ifdef TOE
425#ifndef BDC
426#error TOE requires BDC
427#endif /* !BDC */
428static int dhd_toe_get(dhd_info_t *dhd, int idx, uint32 *toe_ol);
429static int dhd_toe_set(dhd_info_t *dhd, int idx, uint32 toe_ol);
430#endif /* TOE */
431
432static int dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
433 wl_event_msg_t *event_ptr, void **data_ptr);
434
435#if defined(CONFIG_PM_SLEEP)
436static int dhd_sleep_pm_callback(struct notifier_block *nfb,
437 unsigned long action, void *ignored)
438{
439 switch (action) {
440 case PM_HIBERNATION_PREPARE:
441 case PM_SUSPEND_PREPARE:
442 dhd_mmc_suspend = TRUE;
443 return NOTIFY_OK;
444 case PM_POST_HIBERNATION:
445 case PM_POST_SUSPEND:
446 dhd_mmc_suspend = FALSE;
447 return NOTIFY_OK;
448 }
449 return 0;
450}
451
452static struct notifier_block dhd_sleep_pm_notifier = {
453 .notifier_call = dhd_sleep_pm_callback,
454 .priority = 0
455};
456
457extern int register_pm_notifier(struct notifier_block *nb);
458extern int unregister_pm_notifier(struct notifier_block *nb);
459#endif /* defined(CONFIG_PM_SLEEP) */
460 /* && defined(DHD_GPL) */
461static void dhd_set_packet_filter(int value, dhd_pub_t *dhd)
462{
463#ifdef PKT_FILTER_SUPPORT
464 DHD_TRACE(("%s: %d\n", __func__, value));
465 /* 1 - Enable packet filter, only allow unicast packet to send up */
466 /* 0 - Disable packet filter */
467 if (dhd_pkt_filter_enable) {
468 int i;
469
470 for (i = 0; i < dhd->pktfilter_count; i++) {
471 dhd_pktfilter_offload_set(dhd, dhd->pktfilter[i]);
472 dhd_pktfilter_offload_enable(dhd, dhd->pktfilter[i],
473 value, dhd_master_mode);
474 }
475 }
476#endif
477}
478
479#if defined(CONFIG_HAS_EARLYSUSPEND)
480static int dhd_set_suspend(int value, dhd_pub_t *dhd)
481{
482 int power_mode = PM_MAX;
483 /* wl_pkt_filter_enable_t enable_parm; */
484 char iovbuf[32];
485 int bcn_li_dtim = 3;
486#ifdef CUSTOMER_HW2
487 uint roamvar = 1;
488#endif /* CUSTOMER_HW2 */
489
490 DHD_TRACE(("%s: enter, value = %d in_suspend=%d\n",
491 __func__, value, dhd->in_suspend));
492
493 if (dhd && dhd->up) {
494 if (value && dhd->in_suspend) {
495
496 /* Kernel suspended */
497 DHD_TRACE(("%s: force extra Suspend setting\n",
498 __func__));
499
500 dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM,
501 (char *)&power_mode,
502 sizeof(power_mode));
503
504 /* Enable packet filter, only allow unicast
505 packet to send up */
506 dhd_set_packet_filter(1, dhd);
507
508 /* if dtim skip setup as default force it
509 * to wake each thrid dtim
510 * for better power saving.
511 * Note that side effect is chance to miss BC/MC
512 * packet
513 */
514 if ((dhd->dtim_skip == 0) || (dhd->dtim_skip == 1))
515 bcn_li_dtim = 3;
516 else
517 bcn_li_dtim = dhd->dtim_skip;
518 bcm_mkiovar("bcn_li_dtim", (char *)&bcn_li_dtim,
519 4, iovbuf, sizeof(iovbuf));
520 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
521 sizeof(iovbuf));
522#ifdef CUSTOMER_HW2
523 /* Disable build-in roaming to allowed \
524 * supplicant to take of romaing
525 */
526 bcm_mkiovar("roam_off", (char *)&roamvar, 4,
527 iovbuf, sizeof(iovbuf));
528 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
529 sizeof(iovbuf));
530#endif /* CUSTOMER_HW2 */
531 } else {
532
533 /* Kernel resumed */
534 DHD_TRACE(("%s: Remove extra suspend setting\n",
535 __func__));
536
537 power_mode = PM_FAST;
538 dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM,
539 (char *)&power_mode,
540 sizeof(power_mode));
541
542 /* disable pkt filter */
543 dhd_set_packet_filter(0, dhd);
544
545 /* restore pre-suspend setting for dtim_skip */
546 bcm_mkiovar("bcn_li_dtim", (char *)&dhd->dtim_skip,
547 4, iovbuf, sizeof(iovbuf));
548
549 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
550 sizeof(iovbuf));
551#ifdef CUSTOMER_HW2
552 roamvar = 0;
553 bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf,
554 sizeof(iovbuf));
555 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
556 sizeof(iovbuf));
557#endif /* CUSTOMER_HW2 */
558 }
559 }
560
561 return 0;
562}
563
564static void dhd_suspend_resume_helper(struct dhd_info *dhd, int val)
565{
566 dhd_pub_t *dhdp = &dhd->pub;
567
568 dhd_os_proto_block(dhdp);
569 /* Set flag when early suspend was called */
570 dhdp->in_suspend = val;
571 if (!dhdp->suspend_disable_flag)
572 dhd_set_suspend(val, dhdp);
573 dhd_os_proto_unblock(dhdp);
574}
575
576static void dhd_early_suspend(struct early_suspend *h)
577{
578 struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
579
580 DHD_TRACE(("%s: enter\n", __func__));
581
582 if (dhd)
583 dhd_suspend_resume_helper(dhd, 1);
584
585}
586
587static void dhd_late_resume(struct early_suspend *h)
588{
589 struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
590
591 DHD_TRACE(("%s: enter\n", __func__));
592
593 if (dhd)
594 dhd_suspend_resume_helper(dhd, 0);
595}
596#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
597
598/*
599 * Generalized timeout mechanism. Uses spin sleep with exponential
600 * back-off until
601 * the sleep time reaches one jiffy, then switches over to task delay. Usage:
602 *
603 * dhd_timeout_start(&tmo, usec);
604 * while (!dhd_timeout_expired(&tmo))
605 * if (poll_something())
606 * break;
607 * if (dhd_timeout_expired(&tmo))
608 * fatal();
609 */
610
611void dhd_timeout_start(dhd_timeout_t *tmo, uint usec)
612{
613 tmo->limit = usec;
614 tmo->increment = 0;
615 tmo->elapsed = 0;
616 tmo->tick = 1000000 / HZ;
617}
618
619int dhd_timeout_expired(dhd_timeout_t *tmo)
620{
621 /* Does nothing the first call */
622 if (tmo->increment == 0) {
623 tmo->increment = 1;
624 return 0;
625 }
626
627 if (tmo->elapsed >= tmo->limit)
628 return 1;
629
630 /* Add the delay that's about to take place */
631 tmo->elapsed += tmo->increment;
632
633 if (tmo->increment < tmo->tick) {
634 OSL_DELAY(tmo->increment);
635 tmo->increment *= 2;
636 if (tmo->increment > tmo->tick)
637 tmo->increment = tmo->tick;
638 } else {
639 wait_queue_head_t delay_wait;
640 DECLARE_WAITQUEUE(wait, current);
641 int pending;
642 init_waitqueue_head(&delay_wait);
643 add_wait_queue(&delay_wait, &wait);
644 set_current_state(TASK_INTERRUPTIBLE);
645 schedule_timeout(1);
646 pending = signal_pending(current);
647 remove_wait_queue(&delay_wait, &wait);
648 set_current_state(TASK_RUNNING);
649 if (pending)
650 return 1; /* Interrupted */
651 }
652
653 return 0;
654}
655
656static int dhd_net2idx(dhd_info_t *dhd, struct net_device *net)
657{
658 int i = 0;
659
660 ASSERT(dhd);
661 while (i < DHD_MAX_IFS) {
662 if (dhd->iflist[i] && (dhd->iflist[i]->net == net))
663 return i;
664 i++;
665 }
666
667 return DHD_BAD_IF;
668}
669
670int dhd_ifname2idx(dhd_info_t *dhd, char *name)
671{
672 int i = DHD_MAX_IFS;
673
674 ASSERT(dhd);
675
676 if (name == NULL || *name == '\0')
677 return 0;
678
679 while (--i > 0)
680 if (dhd->iflist[i]
681 && !strncmp(dhd->iflist[i]->name, name, IFNAMSIZ))
682 break;
683
684 DHD_TRACE(("%s: return idx %d for \"%s\"\n", __func__, i, name));
685
686 return i; /* default - the primary interface */
687}
688
689char *dhd_ifname(dhd_pub_t *dhdp, int ifidx)
690{
691 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
692
693 ASSERT(dhd);
694
695 if (ifidx < 0 || ifidx >= DHD_MAX_IFS) {
696 DHD_ERROR(("%s: ifidx %d out of range\n", __func__, ifidx));
697 return "<if_bad>";
698 }
699
700 if (dhd->iflist[ifidx] == NULL) {
701 DHD_ERROR(("%s: null i/f %d\n", __func__, ifidx));
702 return "<if_null>";
703 }
704
705 if (dhd->iflist[ifidx]->net)
706 return dhd->iflist[ifidx]->net->name;
707
708 return "<if_none>";
709}
710
711static void _dhd_set_multicast_list(dhd_info_t *dhd, int ifidx)
712{
713 struct net_device *dev;
714 struct netdev_hw_addr *ha;
715 uint32 allmulti, cnt;
716
717 wl_ioctl_t ioc;
718 char *buf, *bufp;
719 uint buflen;
720 int ret;
721
722 ASSERT(dhd && dhd->iflist[ifidx]);
723 dev = dhd->iflist[ifidx]->net;
724 cnt = netdev_mc_count(dev);
725
726 /* Determine initial value of allmulti flag */
727 allmulti = (dev->flags & IFF_ALLMULTI) ? TRUE : FALSE;
728
729 /* Send down the multicast list first. */
730
731 buflen = sizeof("mcast_list") + sizeof(cnt) + (cnt * ETHER_ADDR_LEN);
a618cc28
JC		 732 bufp = buf = MALLOC(dhd->pub.osh, buflen);
733 if (!bufp) {
cf2b4488
HP		 734 DHD_ERROR(("%s: out of memory for mcast_list, cnt %d\n",
735 dhd_ifname(&dhd->pub, ifidx), cnt));
736 return;
737 }
738
739 strcpy(bufp, "mcast_list");
740 bufp += strlen("mcast_list") + 1;
741
742 cnt = htol32(cnt);
743 memcpy(bufp, &cnt, sizeof(cnt));
744 bufp += sizeof(cnt);
745
746 netdev_for_each_mc_addr(ha, dev) {
747 if (!cnt)
748 break;
749 memcpy(bufp, ha->addr, ETHER_ADDR_LEN);
750 bufp += ETHER_ADDR_LEN;
751 cnt--;
752 }
753
754 memset(&ioc, 0, sizeof(ioc));
755 ioc.cmd = WLC_SET_VAR;
756 ioc.buf = buf;
757 ioc.len = buflen;
758 ioc.set = TRUE;
759
760 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
761 if (ret < 0) {
762 DHD_ERROR(("%s: set mcast_list failed, cnt %d\n",
763 dhd_ifname(&dhd->pub, ifidx), cnt));
764 allmulti = cnt ? TRUE : allmulti;
765 }
766
767 MFREE(dhd->pub.osh, buf, buflen);
768
769 /* Now send the allmulti setting. This is based on the setting in the
770 * net_device flags, but might be modified above to be turned on if we
771 * were trying to set some addresses and dongle rejected it...
772 */
773
774 buflen = sizeof("allmulti") + sizeof(allmulti);
a618cc28
JC		 775 buf = MALLOC(dhd->pub.osh, buflen);
776 if (!buf) {
cf2b4488
HP		 777 DHD_ERROR(("%s: out of memory for allmulti\n",
778 dhd_ifname(&dhd->pub, ifidx)));
779 return;
780 }
781 allmulti = htol32(allmulti);
782
783 if (!bcm_mkiovar
784 ("allmulti", (void *)&allmulti, sizeof(allmulti), buf, buflen)) {
785 DHD_ERROR(("%s: mkiovar failed for allmulti, datalen %d "
786 "buflen %u\n", dhd_ifname(&dhd->pub, ifidx),
787 (int)sizeof(allmulti), buflen));
788 MFREE(dhd->pub.osh, buf, buflen);
789 return;
790 }
791
792 memset(&ioc, 0, sizeof(ioc));
793 ioc.cmd = WLC_SET_VAR;
794 ioc.buf = buf;
795 ioc.len = buflen;
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 allmulti %d failed\n",
801 dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
802 }
803
804 MFREE(dhd->pub.osh, buf, buflen);
805
806 /* Finally, pick up the PROMISC flag as well, like the NIC
807 driver does */
808
809 allmulti = (dev->flags & IFF_PROMISC) ? TRUE : FALSE;
810 allmulti = htol32(allmulti);
811
812 memset(&ioc, 0, sizeof(ioc));
813 ioc.cmd = WLC_SET_PROMISC;
814 ioc.buf = &allmulti;
815 ioc.len = sizeof(allmulti);
816 ioc.set = TRUE;
817
818 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
819 if (ret < 0) {
820 DHD_ERROR(("%s: set promisc %d failed\n",
821 dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
822 }
823}
824
825static int
826_dhd_set_mac_address(dhd_info_t *dhd, int ifidx, struct ether_addr *addr)
827{
828 char buf[32];
829 wl_ioctl_t ioc;
830 int ret;
831
832 DHD_TRACE(("%s enter\n", __func__));
833 if (!bcm_mkiovar
834 ("cur_etheraddr", (char *)addr, ETHER_ADDR_LEN, buf, 32)) {
835 DHD_ERROR(("%s: mkiovar failed for cur_etheraddr\n",
836 dhd_ifname(&dhd->pub, ifidx)));
837 return -1;
838 }
839 memset(&ioc, 0, sizeof(ioc));
840 ioc.cmd = WLC_SET_VAR;
841 ioc.buf = buf;
842 ioc.len = 32;
843 ioc.set = TRUE;
844
845 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
846 if (ret < 0) {
847 DHD_ERROR(("%s: set cur_etheraddr failed\n",
848 dhd_ifname(&dhd->pub, ifidx)));
849 } else {
850 memcpy(dhd->iflist[ifidx]->net->dev_addr, addr, ETHER_ADDR_LEN);
851 }
852
853 return ret;
854}
855
856#ifdef SOFTAP
857extern struct net_device *ap_net_dev;
858#endif
859
860static void dhd_op_if(dhd_if_t *ifp)
861{
862 dhd_info_t *dhd;
863 int ret = 0, err = 0;
864
865 ASSERT(ifp && ifp->info && ifp->idx); /* Virtual interfaces only */
866
867 dhd = ifp->info;
868
869 DHD_TRACE(("%s: idx %d, state %d\n", __func__, ifp->idx, ifp->state));
870
871 switch (ifp->state) {
872 case WLC_E_IF_ADD:
873 /*
874 * Delete the existing interface before overwriting it
875 * in case we missed the WLC_E_IF_DEL event.
876 */
877 if (ifp->net != NULL) {
878 DHD_ERROR(("%s: ERROR: netdev:%s already exists, "
879 "try free & unregister\n",
880 __func__, ifp->net->name));
881 netif_stop_queue(ifp->net);
882 unregister_netdev(ifp->net);
883 free_netdev(ifp->net);
884 }
885 /* Allocate etherdev, including space for private structure */
a618cc28
JC		 886 ifp->net = alloc_etherdev(sizeof(dhd));
887 if (!ifp->net) {
cf2b4488
HP		 888 DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
889 ret = -ENOMEM;
890 }
891 if (ret == 0) {
892 strcpy(ifp->net->name, ifp->name);
893 memcpy(netdev_priv(ifp->net), &dhd, sizeof(dhd));
a618cc28
JC		 894 err = dhd_net_attach(&dhd->pub, ifp->idx);
895 if (err != 0) {
cf2b4488
HP		 896 DHD_ERROR(("%s: dhd_net_attach failed, "
897 "err %d\n",
898 __func__, err));
899 ret = -EOPNOTSUPP;
900 } else {
901#ifdef SOFTAP
902 /* semaphore that the soft AP CODE
903 waits on */
904 extern struct semaphore ap_eth_sema;
905
906 /* save ptr to wl0.1 netdev for use
907 in wl_iw.c */
908 ap_net_dev = ifp->net;
909 /* signal to the SOFTAP 'sleeper' thread,
910 wl0.1 is ready */
911 up(&ap_eth_sema);
912#endif
913 DHD_TRACE(("\n ==== pid:%x, net_device for "
914 "if:%s created ===\n\n",
915 current->pid, ifp->net->name));
916 ifp->state = 0;
917 }
918 }
919 break;
920 case WLC_E_IF_DEL:
921 if (ifp->net != NULL) {
922 DHD_TRACE(("\n%s: got 'WLC_E_IF_DEL' state\n",
923 __func__));
924 netif_stop_queue(ifp->net);
925 unregister_netdev(ifp->net);
926 ret = DHD_DEL_IF; /* Make sure the free_netdev()
927 is called */
928 }
929 break;
930 default:
931 DHD_ERROR(("%s: bad op %d\n", __func__, ifp->state));
932 ASSERT(!ifp->state);
933 break;
934 }
935
936 if (ret < 0) {
937 if (ifp->net)
938 free_netdev(ifp->net);
939
940 dhd->iflist[ifp->idx] = NULL;
941 MFREE(dhd->pub.osh, ifp, sizeof(*ifp));
942#ifdef SOFTAP
943 if (ifp->net == ap_net_dev)
944 ap_net_dev = NULL; /* NULL SOFTAP global
945 wl0.1 as well */
946#endif /* SOFTAP */
947 }
948}
949
950static int _dhd_sysioc_thread(void *data)
951{
952 dhd_info_t *dhd = (dhd_info_t *) data;
953 int i;
954#ifdef SOFTAP
955 bool in_ap = FALSE;
956#endif
957
958 DAEMONIZE("dhd_sysioc");
959
960 while (down_interruptible(&dhd->sysioc_sem) == 0) {
961 for (i = 0; i < DHD_MAX_IFS; i++) {
962 if (dhd->iflist[i]) {
963#ifdef SOFTAP
964 in_ap = (ap_net_dev != NULL);
965#endif /* SOFTAP */
966 if (dhd->iflist[i]->state)
967 dhd_op_if(dhd->iflist[i]);
968#ifdef SOFTAP
969 if (dhd->iflist[i] == NULL) {
970 DHD_TRACE(("\n\n %s: interface %d "
971 "removed!\n", __func__, i));
972 continue;
973 }
974
975 if (in_ap && dhd->set_macaddress) {
976 DHD_TRACE(("attempt to set MAC for %s "
977 "in AP Mode," "blocked. \n",
978 dhd->iflist[i]->net->name));
979 dhd->set_macaddress = FALSE;
980 continue;
981 }
982
983 if (in_ap && dhd->set_multicast) {
984 DHD_TRACE(("attempt to set MULTICAST list for %s" "in AP Mode, blocked. \n",
985 dhd->iflist[i]->net->name));
986 dhd->set_multicast = FALSE;
987 continue;
988 }
989#endif /* SOFTAP */
990 if (dhd->set_multicast) {
991 dhd->set_multicast = FALSE;
992 _dhd_set_multicast_list(dhd, i);
993 }
994 if (dhd->set_macaddress) {
995 dhd->set_macaddress = FALSE;
996 _dhd_set_mac_address(dhd, i,
997 &dhd->macvalue);
998 }
999 }
1000 }
1001 }
1002 complete_and_exit(&dhd->sysioc_exited, 0);
1003}
1004
1005static int dhd_set_mac_address(struct net_device *dev, void *addr)
1006{
1007 int ret = 0;
1008
1009 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
1010 struct sockaddr *sa = (struct sockaddr *)addr;
1011 int ifidx;
1012
1013 ifidx = dhd_net2idx(dhd, dev);
1014 if (ifidx == DHD_BAD_IF)
1015 return -1;
1016
1017 ASSERT(dhd->sysioc_pid >= 0);
1018 memcpy(&dhd->macvalue, sa->sa_data, ETHER_ADDR_LEN);
1019 dhd->set_macaddress = TRUE;
1020 up(&dhd->sysioc_sem);
1021
1022 return ret;
1023}
1024
1025static void dhd_set_multicast_list(struct net_device *dev)
1026{
1027 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
1028 int ifidx;
1029
1030 ifidx = dhd_net2idx(dhd, dev);
1031 if (ifidx == DHD_BAD_IF)
1032 return;
1033
1034 ASSERT(dhd->sysioc_pid >= 0);
1035 dhd->set_multicast = TRUE;
1036 up(&dhd->sysioc_sem);
1037}
1038
1039int dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, void *pktbuf)
1040{
1041 int ret;
1042 dhd_info_t *dhd = (dhd_info_t *) (dhdp->info);
1043
1044 /* Reject if down */
1045 if (!dhdp->up || (dhdp->busstate == DHD_BUS_DOWN))
1046 return -ENODEV;
1047
1048 /* Update multicast statistic */
1049 if (PKTLEN(pktbuf) >= ETHER_ADDR_LEN) {
3fd79f7c 1050 u8 *pktdata = (u8 *) PKTDATA(pktbuf);
cf2b4488
HP		 1051 struct ether_header *eh = (struct ether_header *)pktdata;
1052
1053 if (ETHER_ISMULTI(eh->ether_dhost))
1054 dhdp->tx_multicast++;
1055 if (ntoh16(eh->ether_type) == ETHER_TYPE_802_1X)
1056 atomic_inc(&dhd->pend_8021x_cnt);
1057 }
1058
1059 /* Look into the packet and update the packet priority */
1060 if ((PKTPRIO(pktbuf) == 0))
1061 pktsetprio(pktbuf, FALSE);
1062
1063 /* If the protocol uses a data header, apply it */
1064 dhd_prot_hdrpush(dhdp, ifidx, pktbuf);
1065
1066 /* Use bus module to send data frame */
1067#ifdef BCMDBUS
1068 ret = dbus_send_pkt(dhdp->dbus, pktbuf, NULL /* pktinfo */);
1069#else
1070 WAKE_LOCK_TIMEOUT(dhdp, WAKE_LOCK_TMOUT, 25);
1071 ret = dhd_bus_txdata(dhdp->bus, pktbuf);
1072#endif /* BCMDBUS */
1073
1074 return ret;
1075}
1076
1077static int dhd_start_xmit(struct sk_buff *skb, struct net_device *net)
1078{
1079 int ret;
1080 void *pktbuf;
1081 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1082 int ifidx;
1083
1084 DHD_TRACE(("%s: Enter\n", __func__));
1085
1086 /* Reject if down */
1087 if (!dhd->pub.up || (dhd->pub.busstate == DHD_BUS_DOWN)) {
1088 DHD_ERROR(("%s: xmit rejected pub.up=%d busstate=%d\n",
1089 __func__, dhd->pub.up, dhd->pub.busstate));
1090 netif_stop_queue(net);
1091 return -ENODEV;
1092 }
1093
1094 ifidx = dhd_net2idx(dhd, net);
1095 if (ifidx == DHD_BAD_IF) {
1096 DHD_ERROR(("%s: bad ifidx %d\n", __func__, ifidx));
1097 netif_stop_queue(net);
1098 return -ENODEV;
1099 }
1100
1101 /* Make sure there's enough room for any header */
1102 if (skb_headroom(skb) < dhd->pub.hdrlen) {
1103 struct sk_buff *skb2;
1104
1105 DHD_INFO(("%s: insufficient headroom\n",
1106 dhd_ifname(&dhd->pub, ifidx)));
1107 dhd->pub.tx_realloc++;
1108 skb2 = skb_realloc_headroom(skb, dhd->pub.hdrlen);
1109 dev_kfree_skb(skb);
a618cc28
JC		 1110 skb = skb2;
1111 if (skb == NULL) {
cf2b4488
HP		 1112 DHD_ERROR(("%s: skb_realloc_headroom failed\n",
1113 dhd_ifname(&dhd->pub, ifidx)));
1114 ret = -ENOMEM;
1115 goto done;
1116 }
1117 }
1118
1119 /* Convert to packet */
a618cc28
JC		 1120 pktbuf = PKTFRMNATIVE(dhd->pub.osh, skb);
1121 if (!pktbuf) {
cf2b4488
HP		 1122 DHD_ERROR(("%s: PKTFRMNATIVE failed\n",
1123 dhd_ifname(&dhd->pub, ifidx)));
1124 dev_kfree_skb_any(skb);
1125 ret = -ENOMEM;
1126 goto done;
1127 }
1128
1129 ret = dhd_sendpkt(&dhd->pub, ifidx, pktbuf);
1130
1131done:
1132 if (ret)
1133 dhd->pub.dstats.tx_dropped++;
1134 else
1135 dhd->pub.tx_packets++;
1136
1137 /* Return ok: we always eat the packet */
1138 return 0;
1139}
1140
1141void dhd_txflowcontrol(dhd_pub_t *dhdp, int ifidx, bool state)
1142{
1143 struct net_device *net;
1144 dhd_info_t *dhd = dhdp->info;
1145
1146 DHD_TRACE(("%s: Enter\n", __func__));
1147
1148 dhdp->txoff = state;
1149 ASSERT(dhd && dhd->iflist[ifidx]);
1150 net = dhd->iflist[ifidx]->net;
1151 if (state == ON)
1152 netif_stop_queue(net);
1153 else
1154 netif_wake_queue(net);
1155}
1156
1157void dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, void *pktbuf, int numpkt)
1158{
1159 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
1160 struct sk_buff *skb;
580a0bd9 1161 unsigned char *eth;
cf2b4488
HP		 1162 uint len;
1163 void *data, *pnext, *save_pktbuf;
1164 int i;
1165 dhd_if_t *ifp;
1166 wl_event_msg_t event;
1167
1168 DHD_TRACE(("%s: Enter\n", __func__));
1169
1170 save_pktbuf = pktbuf;
1171
1172 for (i = 0; pktbuf && i < numpkt; i++, pktbuf = pnext) {
1173
1174 pnext = PKTNEXT(pktbuf);
1175 PKTSETNEXT(pktbuf, NULL);
1176
1177 skb = PKTTONATIVE(dhdp->osh, pktbuf);
1178
1179 /* Get the protocol, maintain skb around eth_type_trans()
1180 * The main reason for this hack is for the limitation of
1181 * Linux 2.4 where 'eth_type_trans' uses the
1182 * 'net->hard_header_len'
1183 * to perform skb_pull inside vs ETH_HLEN. Since to avoid
1184 * coping of the packet coming from the network stack to add
1185 * BDC, Hardware header etc, during network interface
1186 * registration
1187 * we set the 'net->hard_header_len' to ETH_HLEN + extra space
1188 * required
1189 * for BDC, Hardware header etc. and not just the ETH_HLEN
1190 */
1191 eth = skb->data;
1192 len = skb->len;
1193
1194 ifp = dhd->iflist[ifidx];
1195 if (ifp == NULL)
1196 ifp = dhd->iflist[0];
1197
1198 ASSERT(ifp);
1199 skb->dev = ifp->net;
1200 skb->protocol = eth_type_trans(skb, skb->dev);
1201
1202 if (skb->pkt_type == PACKET_MULTICAST)
1203 dhd->pub.rx_multicast++;
1204
1205 skb->data = eth;
1206 skb->len = len;
1207
1208 /* Strip header, count, deliver upward */
1209 skb_pull(skb, ETH_HLEN);
1210
1211 /* Process special event packets and then discard them */
1212 if (ntoh16(skb->protocol) == ETHER_TYPE_BRCM)
1213 dhd_wl_host_event(dhd, &ifidx,
1214 skb->mac_header,
1215 &event, &data);
1216
1217 ASSERT(ifidx < DHD_MAX_IFS && dhd->iflist[ifidx]);
1218 if (dhd->iflist[ifidx] && !dhd->iflist[ifidx]->state)
1219 ifp = dhd->iflist[ifidx];
1220
1221 if (ifp->net)
1222 ifp->net->last_rx = jiffies;
1223
1224 dhdp->dstats.rx_bytes += skb->len;
1225 dhdp->rx_packets++; /* Local count */
1226
1227 if (in_interrupt()) {
1228 netif_rx(skb);
1229 } else {
1230 /* If the receive is not processed inside an ISR,
1231 * the softirqd must be woken explicitly to service
1232 * the NET_RX_SOFTIRQ. In 2.6 kernels, this is handled
1233 * by netif_rx_ni(), but in earlier kernels, we need
1234 * to do it manually.
1235 */
1236 netif_rx_ni(skb);
1237 }
1238 }
1239}
1240
1241void dhd_event(struct dhd_info *dhd, char *evpkt, int evlen, int ifidx)
1242{
1243 /* Linux version has nothing to do */
1244 return;
1245}
1246
1247void dhd_txcomplete(dhd_pub_t *dhdp, void *txp, bool success)
1248{
1249 uint ifidx;
1250 dhd_info_t *dhd = (dhd_info_t *) (dhdp->info);
1251 struct ether_header *eh;
1252 uint16 type;
1253
1254 dhd_prot_hdrpull(dhdp, &ifidx, txp);
1255
1256 eh = (struct ether_header *)PKTDATA(txp);
1257 type = ntoh16(eh->ether_type);
1258
1259 if (type == ETHER_TYPE_802_1X)
1260 atomic_dec(&dhd->pend_8021x_cnt);
1261
1262}
1263
1264static struct net_device_stats *dhd_get_stats(struct net_device *net)
1265{
1266 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1267 dhd_if_t *ifp;
1268 int ifidx;
1269
1270 DHD_TRACE(("%s: Enter\n", __func__));
1271
1272 ifidx = dhd_net2idx(dhd, net);
1273 if (ifidx == DHD_BAD_IF)
1274 return NULL;
1275
1276 ifp = dhd->iflist[ifidx];
1277 ASSERT(dhd && ifp);
1278
1279 if (dhd->pub.up) {
1280 /* Use the protocol to get dongle stats */
1281 dhd_prot_dstats(&dhd->pub);
1282 }
1283
1284 /* Copy dongle stats to net device stats */
1285 ifp->stats.rx_packets = dhd->pub.dstats.rx_packets;
1286 ifp->stats.tx_packets = dhd->pub.dstats.tx_packets;
1287 ifp->stats.rx_bytes = dhd->pub.dstats.rx_bytes;
1288 ifp->stats.tx_bytes = dhd->pub.dstats.tx_bytes;
1289 ifp->stats.rx_errors = dhd->pub.dstats.rx_errors;
1290 ifp->stats.tx_errors = dhd->pub.dstats.tx_errors;
1291 ifp->stats.rx_dropped = dhd->pub.dstats.rx_dropped;
1292 ifp->stats.tx_dropped = dhd->pub.dstats.tx_dropped;
1293 ifp->stats.multicast = dhd->pub.dstats.multicast;
1294
1295 return &ifp->stats;
1296}
1297
1298static int dhd_watchdog_thread(void *data)
1299{
1300 dhd_info_t *dhd = (dhd_info_t *) data;
1301 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_WATCHDOG, "dhd_watchdog_thread");
1302
1303 /* This thread doesn't need any user-level access,
1304 * so get rid of all our resources
1305 */
1306#ifdef DHD_SCHED
1307 if (dhd_watchdog_prio > 0) {
1308 struct sched_param param;
1309 param.sched_priority = (dhd_watchdog_prio < MAX_RT_PRIO) ?
1310 dhd_watchdog_prio : (MAX_RT_PRIO - 1);
1311 setScheduler(current, SCHED_FIFO, &param);
1312 }
1313#endif /* DHD_SCHED */
1314
1315 DAEMONIZE("dhd_watchdog");
1316
1317 /* Run until signal received */
1318 while (1) {
1319 if (down_interruptible(&dhd->watchdog_sem) == 0) {
1320 if (dhd->pub.dongle_reset == FALSE) {
1321 WAKE_LOCK(&dhd->pub, WAKE_LOCK_WATCHDOG);
1322 /* Call the bus module watchdog */
1323 dhd_bus_watchdog(&dhd->pub);
1324 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_WATCHDOG);
1325 }
1326 /* Count the tick for reference */
1327 dhd->pub.tickcnt++;
1328 } else
1329 break;
1330 }
1331
1332 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_WATCHDOG);
1333 complete_and_exit(&dhd->watchdog_exited, 0);
1334}
1335
3deea904 1336static void dhd_watchdog(unsigned long data)
cf2b4488
HP		 1337{
1338 dhd_info_t *dhd = (dhd_info_t *) data;
1339
1340 if (dhd->watchdog_pid >= 0) {
1341 up(&dhd->watchdog_sem);
1342
1343 /* Reschedule the watchdog */
1344 if (dhd->wd_timer_valid) {
1345 mod_timer(&dhd->timer,
1346 jiffies + dhd_watchdog_ms * HZ / 1000);
1347 }
1348 return;
1349 }
1350
1351 /* Call the bus module watchdog */
1352 dhd_bus_watchdog(&dhd->pub);
1353
1354 /* Count the tick for reference */
1355 dhd->pub.tickcnt++;
1356
1357 /* Reschedule the watchdog */
1358 if (dhd->wd_timer_valid)
1359 mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000);
1360}
1361
1362static int dhd_dpc_thread(void *data)
1363{
1364 dhd_info_t *dhd = (dhd_info_t *) data;
1365
1366 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_DPC, "dhd_dpc_thread");
1367 /* This thread doesn't need any user-level access,
1368 * so get rid of all our resources
1369 */
1370#ifdef DHD_SCHED
1371 if (dhd_dpc_prio > 0) {
1372 struct sched_param param;
1373 param.sched_priority =
1374 (dhd_dpc_prio <
1375 MAX_RT_PRIO) ? dhd_dpc_prio : (MAX_RT_PRIO - 1);
1376 setScheduler(current, SCHED_FIFO, &param);
1377 }
1378#endif /* DHD_SCHED */
1379
1380 DAEMONIZE("dhd_dpc");
1381
1382 /* Run until signal received */
1383 while (1) {
1384 if (down_interruptible(&dhd->dpc_sem) == 0) {
1385 /* Call bus dpc unless it indicated down
1386 (then clean stop) */
1387 if (dhd->pub.busstate != DHD_BUS_DOWN) {
1388 WAKE_LOCK(&dhd->pub, WAKE_LOCK_DPC);
1389 if (dhd_bus_dpc(dhd->pub.bus)) {
1390 up(&dhd->dpc_sem);
1391 WAKE_LOCK_TIMEOUT(&dhd->pub,
1392 WAKE_LOCK_TMOUT, 25);
1393 }
1394 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_DPC);
1395 } else {
1396 dhd_bus_stop(dhd->pub.bus, TRUE);
1397 }
1398 } else
1399 break;
1400 }
1401
1402 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_DPC);
1403
1404 complete_and_exit(&dhd->dpc_exited, 0);
1405}
1406
3deea904 1407static void dhd_dpc(unsigned long data)
cf2b4488
HP		 1408{
1409 dhd_info_t *dhd;
1410
1411 dhd = (dhd_info_t *) data;
1412
1413 /* Call bus dpc unless it indicated down (then clean stop) */
1414 if (dhd->pub.busstate != DHD_BUS_DOWN) {
1415 if (dhd_bus_dpc(dhd->pub.bus))
1416 tasklet_schedule(&dhd->tasklet);
1417 } else {
1418 dhd_bus_stop(dhd->pub.bus, TRUE);
1419 }
1420}
1421
1422void dhd_sched_dpc(dhd_pub_t *dhdp)
1423{
1424 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
1425
1426 if (dhd->dpc_pid >= 0) {
1427 up(&dhd->dpc_sem);
1428 return;
1429 }
1430
1431 tasklet_schedule(&dhd->tasklet);
1432}
1433
1434#ifdef TOE
1435/* Retrieve current toe component enables, which are kept
1436 as a bitmap in toe_ol iovar */
1437static int dhd_toe_get(dhd_info_t *dhd, int ifidx, uint32 *toe_ol)
1438{
1439 wl_ioctl_t ioc;
1440 char buf[32];
1441 int ret;
1442
1443 memset(&ioc, 0, sizeof(ioc));
1444
1445 ioc.cmd = WLC_GET_VAR;
1446 ioc.buf = buf;
1447 ioc.len = (uint) sizeof(buf);
1448 ioc.set = FALSE;
1449
1450 strcpy(buf, "toe_ol");
a618cc28
JC		 1451 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1452 if (ret < 0) {
cf2b4488
HP		 1453 /* Check for older dongle image that doesn't support toe_ol */
1454 if (ret == -EIO) {
1455 DHD_ERROR(("%s: toe not supported by device\n",
1456 dhd_ifname(&dhd->pub, ifidx)));
1457 return -EOPNOTSUPP;
1458 }
1459
1460 DHD_INFO(("%s: could not get toe_ol: ret=%d\n",
1461 dhd_ifname(&dhd->pub, ifidx), ret));
1462 return ret;
1463 }
1464
1465 memcpy(toe_ol, buf, sizeof(uint32));
1466 return 0;
1467}
1468
1469/* Set current toe component enables in toe_ol iovar,
1470 and set toe global enable iovar */
1471static int dhd_toe_set(dhd_info_t *dhd, int ifidx, uint32 toe_ol)
1472{
1473 wl_ioctl_t ioc;
1474 char buf[32];
1475 int toe, ret;
1476
1477 memset(&ioc, 0, sizeof(ioc));
1478
1479 ioc.cmd = WLC_SET_VAR;
1480 ioc.buf = buf;
1481 ioc.len = (uint) sizeof(buf);
1482 ioc.set = TRUE;
1483
1484 /* Set toe_ol as requested */
1485
1486 strcpy(buf, "toe_ol");
1487 memcpy(&buf[sizeof("toe_ol")], &toe_ol, sizeof(uint32));
1488
a618cc28
JC		 1489 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1490 if (ret < 0) {
cf2b4488
HP		 1491 DHD_ERROR(("%s: could not set toe_ol: ret=%d\n",
1492 dhd_ifname(&dhd->pub, ifidx), ret));
1493 return ret;
1494 }
1495
1496 /* Enable toe globally only if any components are enabled. */
1497
1498 toe = (toe_ol != 0);
1499
1500 strcpy(buf, "toe");
1501 memcpy(&buf[sizeof("toe")], &toe, sizeof(uint32));
1502
a618cc28
JC		 1503 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1504 if (ret < 0) {
cf2b4488
HP		 1505 DHD_ERROR(("%s: could not set toe: ret=%d\n",
1506 dhd_ifname(&dhd->pub, ifidx), ret));
1507 return ret;
1508 }
1509
1510 return 0;
1511}
1512#endif /* TOE */
1513
1514static void dhd_ethtool_get_drvinfo(struct net_device *net,
1515 struct ethtool_drvinfo *info)
1516{
1517 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1518
93ad12cf 1519 sprintf(info->driver, DRV_MODULE_NAME);
cf2b4488 1520 sprintf(info->version, "%lu", dhd->pub.drv_version);
93ad12cf 1521 sprintf(info->fw_version, "%s", wl_cfg80211_get_fwname());
1522 sprintf(info->bus_info, "%s", dev_name(&wl_cfg80211_get_sdio_func()->dev));
cf2b4488
HP		 1523}
1524
1525struct ethtool_ops dhd_ethtool_ops = {
1526 .get_drvinfo = dhd_ethtool_get_drvinfo
1527};
1528
1529static int dhd_ethtool(dhd_info_t *dhd, void *uaddr)
1530{
1531 struct ethtool_drvinfo info;
1532 char drvname[sizeof(info.driver)];
1533 uint32 cmd;
1534#ifdef TOE
1535 struct ethtool_value edata;
1536 uint32 toe_cmpnt, csum_dir;
1537 int ret;
1538#endif
1539
1540 DHD_TRACE(("%s: Enter\n", __func__));
1541
1542 /* all ethtool calls start with a cmd word */
1543 if (copy_from_user(&cmd, uaddr, sizeof(uint32)))
1544 return -EFAULT;
1545
1546 switch (cmd) {
1547 case ETHTOOL_GDRVINFO:
1548 /* Copy out any request driver name */
1549 if (copy_from_user(&info, uaddr, sizeof(info)))
1550 return -EFAULT;
1551 strncpy(drvname, info.driver, sizeof(info.driver));
1552 drvname[sizeof(info.driver) - 1] = '\0';
1553
1554 /* clear struct for return */
1555 memset(&info, 0, sizeof(info));
1556 info.cmd = cmd;
1557
1558 /* if dhd requested, identify ourselves */
1559 if (strcmp(drvname, "?dhd") == 0) {
1560 sprintf(info.driver, "dhd");
1561 strcpy(info.version, EPI_VERSION_STR);
1562 }
1563
1564 /* otherwise, require dongle to be up */
1565 else if (!dhd->pub.up) {
1566 DHD_ERROR(("%s: dongle is not up\n", __func__));
1567 return -ENODEV;
1568 }
1569
1570 /* finally, report dongle driver type */
1571 else if (dhd->pub.iswl)
1572 sprintf(info.driver, "wl");
1573 else
1574 sprintf(info.driver, "xx");
1575
1576 sprintf(info.version, "%lu", dhd->pub.drv_version);
1577 if (copy_to_user(uaddr, &info, sizeof(info)))
1578 return -EFAULT;
1579 DHD_CTL(("%s: given %*s, returning %s\n", __func__,
1580 (int)sizeof(drvname), drvname, info.driver));
1581 break;
1582
1583#ifdef TOE
1584 /* Get toe offload components from dongle */
1585 case ETHTOOL_GRXCSUM:
1586 case ETHTOOL_GTXCSUM:
a618cc28
JC		 1587 ret = dhd_toe_get(dhd, 0, &toe_cmpnt);
1588 if (ret < 0)
cf2b4488
HP		 1589 return ret;
1590
1591 csum_dir =
1592 (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
1593
1594 edata.cmd = cmd;
1595 edata.data = (toe_cmpnt & csum_dir) ? 1 : 0;
1596
1597 if (copy_to_user(uaddr, &edata, sizeof(edata)))
1598 return -EFAULT;
1599 break;
1600
1601 /* Set toe offload components in dongle */
1602 case ETHTOOL_SRXCSUM:
1603 case ETHTOOL_STXCSUM:
1604 if (copy_from_user(&edata, uaddr, sizeof(edata)))
1605 return -EFAULT;
1606
1607 /* Read the current settings, update and write back */
a618cc28
JC		 1608 ret = dhd_toe_get(dhd, 0, &toe_cmpnt);
1609 if (ret < 0)
cf2b4488
HP		 1610 return ret;
1611
1612 csum_dir =
1613 (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
1614
1615 if (edata.data != 0)
1616 toe_cmpnt |= csum_dir;
1617 else
1618 toe_cmpnt &= ~csum_dir;
1619
a618cc28
JC		 1620 ret = dhd_toe_set(dhd, 0, toe_cmpnt);
1621 if (ret < 0)
cf2b4488
HP		 1622 return ret;
1623
1624 /* If setting TX checksum mode, tell Linux the new mode */
1625 if (cmd == ETHTOOL_STXCSUM) {
1626 if (edata.data)
1627 dhd->iflist[0]->net->features |=
1628 NETIF_F_IP_CSUM;
1629 else
1630 dhd->iflist[0]->net->features &=
1631 ~NETIF_F_IP_CSUM;
1632 }
1633
1634 break;
1635#endif /* TOE */
1636
1637 default:
1638 return -EOPNOTSUPP;
1639 }
1640
1641 return 0;
1642}
1643
1644static int dhd_ioctl_entry(struct net_device *net, struct ifreq *ifr, int cmd)
1645{
1646 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1647 dhd_ioctl_t ioc;
1648 int bcmerror = 0;
1649 int buflen = 0;
1650 void *buf = NULL;
1651 uint driver = 0;
1652 int ifidx;
1653 bool is_set_key_cmd;
1654
1655 ifidx = dhd_net2idx(dhd, net);
1656 DHD_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __func__, ifidx, cmd));
1657
1658 if (ifidx == DHD_BAD_IF)
1659 return -1;
1660
1661#if defined(CONFIG_WIRELESS_EXT)
1662 /* linux wireless extensions */
1663 if ((cmd >= SIOCIWFIRST) && (cmd <= SIOCIWLAST)) {
1664 /* may recurse, do NOT lock */
1665 return wl_iw_ioctl(net, ifr, cmd);
1666 }
1667#endif /* defined(CONFIG_WIRELESS_EXT) */
1668
1669 if (cmd == SIOCETHTOOL)
1670 return dhd_ethtool(dhd, (void *)ifr->ifr_data);
1671
1672 if (cmd != SIOCDEVPRIVATE)
1673 return -EOPNOTSUPP;
1674
1675 memset(&ioc, 0, sizeof(ioc));
1676
1677 /* Copy the ioc control structure part of ioctl request */
1678 if (copy_from_user(&ioc, ifr->ifr_data, sizeof(wl_ioctl_t))) {
1679 bcmerror = -BCME_BADADDR;
1680 goto done;
1681 }
1682
1683 /* Copy out any buffer passed */
1684 if (ioc.buf) {
1685 buflen = MIN(ioc.len, DHD_IOCTL_MAXLEN);
1686 /* optimization for direct ioctl calls from kernel */
1687 /*
1688 if (segment_eq(get_fs(), KERNEL_DS)) {
1689 buf = ioc.buf;
1690 } else {
1691 */
1692 {
a618cc28
JC		 1693 buf = (char *)MALLOC(dhd->pub.osh, buflen);
1694 if (!buf) {
cf2b4488
HP		 1695 bcmerror = -BCME_NOMEM;
1696 goto done;
1697 }
1698 if (copy_from_user(buf, ioc.buf, buflen)) {
1699 bcmerror = -BCME_BADADDR;
1700 goto done;
1701 }
1702 }
1703 }
1704
1705 /* To differentiate between wl and dhd read 4 more byes */
1706 if ((copy_from_user(&driver, (char *)ifr->ifr_data + sizeof(wl_ioctl_t),
1707 sizeof(uint)) != 0)) {
1708 bcmerror = -BCME_BADADDR;
1709 goto done;
1710 }
1711
1712 if (!capable(CAP_NET_ADMIN)) {
1713 bcmerror = -BCME_EPERM;
1714 goto done;
1715 }
1716
1717 /* check for local dhd ioctl and handle it */
1718 if (driver == DHD_IOCTL_MAGIC) {
1719 bcmerror = dhd_ioctl((void *)&dhd->pub, &ioc, buf, buflen);
1720 if (bcmerror)
1721 dhd->pub.bcmerror = bcmerror;
1722 goto done;
1723 }
1724
1725 /* send to dongle (must be up, and wl) */
1726 if ((dhd->pub.busstate != DHD_BUS_DATA)) {
1727 DHD_ERROR(("%s DONGLE_DOWN,__func__\n", __func__));
1728 bcmerror = BCME_DONGLE_DOWN;
1729 goto done;
1730 }
1731
1732 if (!dhd->pub.iswl) {
1733 bcmerror = BCME_DONGLE_DOWN;
1734 goto done;
1735 }
1736
1737 /* Intercept WLC_SET_KEY IOCTL - serialize M4 send and set key IOCTL to
1738 * prevent M4 encryption.
1739 */
1740 is_set_key_cmd = ((ioc.cmd == WLC_SET_KEY) ||
1741 ((ioc.cmd == WLC_SET_VAR) &&
1742 !(strncmp("wsec_key", ioc.buf, 9))) ||
1743 ((ioc.cmd == WLC_SET_VAR) &&
1744 !(strncmp("bsscfg:wsec_key", ioc.buf, 15))));
1745 if (is_set_key_cmd)
1746 dhd_wait_pend8021x(net);
1747
1748 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_IOCTL, "dhd_ioctl_entry");
1749 WAKE_LOCK(&dhd->pub, WAKE_LOCK_IOCTL);
1750
1751 bcmerror =
1752 dhd_prot_ioctl(&dhd->pub, ifidx, (wl_ioctl_t *)&ioc, buf, buflen);
1753
1754 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_IOCTL);
1755 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_IOCTL);
1756done:
1757 if (!bcmerror && buf && ioc.buf) {
1758 if (copy_to_user(ioc.buf, buf, buflen))
1759 bcmerror = -EFAULT;
1760 }
1761
1762 if (buf)
1763 MFREE(dhd->pub.osh, buf, buflen);
1764
1765 return OSL_ERROR(bcmerror);
1766}
1767
1768static int dhd_stop(struct net_device *net)
1769{
1770#if !defined(IGNORE_ETH0_DOWN)
1771 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1772
1773 DHD_TRACE(("%s: Enter\n", __func__));
1774#ifdef CONFIG_CFG80211
1775 if (IS_CFG80211_FAVORITE()) {
1776 wl_cfg80211_down();
1777 }
1778#endif
1779 if (dhd->pub.up == 0)
1780 return 0;
1781
1782 /* Set state and stop OS transmissions */
1783 dhd->pub.up = 0;
1784 netif_stop_queue(net);
1785#else
1786 DHD_ERROR(("BYPASS %s:due to BRCM compilation : under investigation\n",
1787 __func__));
1788#endif /* !defined(IGNORE_ETH0_DOWN) */
1789
1790 OLD_MOD_DEC_USE_COUNT;
1791 return 0;
1792}
1793
1794static int dhd_open(struct net_device *net)
1795{
1796 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1797#ifdef TOE
1798 uint32 toe_ol;
1799#endif
1800 int ifidx = dhd_net2idx(dhd, net);
1801 int32 ret = 0;
1802
1803 DHD_TRACE(("%s: ifidx %d\n", __func__, ifidx));
1804
1805 if (ifidx == 0) { /* do it only for primary eth0 */
1806
1807 /* try to bring up bus */
a618cc28
JC		 1808 ret = dhd_bus_start(&dhd->pub);
1809 if (ret != 0) {
cf2b4488
HP		 1810 DHD_ERROR(("%s: failed with code %d\n", __func__, ret));
1811 return -1;
1812 }
1813 atomic_set(&dhd->pend_8021x_cnt, 0);
1814
1815 memcpy(net->dev_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
1816
1817#ifdef TOE
1818 /* Get current TOE mode from dongle */
1819 if (dhd_toe_get(dhd, ifidx, &toe_ol) >= 0
1820 && (toe_ol & TOE_TX_CSUM_OL) != 0)
1821 dhd->iflist[ifidx]->net->features |= NETIF_F_IP_CSUM;
1822 else
1823 dhd->iflist[ifidx]->net->features &= ~NETIF_F_IP_CSUM;
1824#endif
1825 }
1826 /* Allow transmit calls */
1827 netif_start_queue(net);
1828 dhd->pub.up = 1;
1829#ifdef CONFIG_CFG80211
1830 if (IS_CFG80211_FAVORITE()) {
1831 if (unlikely(wl_cfg80211_up())) {
1832 DHD_ERROR(("%s: failed to bring up cfg80211\n",
1833 __func__));
1834 return -1;
1835 }
1836 }
1837#endif
1838
1839 OLD_MOD_INC_USE_COUNT;
1840 return ret;
1841}
1842
1843osl_t *dhd_osl_attach(void *pdev, uint bustype)
1844{
1845 return osl_attach(pdev, bustype, TRUE);
1846}
1847
1848void dhd_osl_detach(osl_t *osh)
1849{
1850 if (MALLOCED(osh)) {
1851 DHD_ERROR(("%s: MEMORY LEAK %d bytes\n", __func__,
1852 MALLOCED(osh)));
1853 }
1854 osl_detach(osh);
1855}
1856
1857int
1858dhd_add_if(dhd_info_t *dhd, int ifidx, void *handle, char *name,
3fd79f7c 1859 u8 *mac_addr, uint32 flags, u8 bssidx)
cf2b4488
HP		 1860{
1861 dhd_if_t *ifp;
1862
1863 DHD_TRACE(("%s: idx %d, handle->%p\n", __func__, ifidx, handle));
1864
1865 ASSERT(dhd && (ifidx < DHD_MAX_IFS));
1866
1867 ifp = dhd->iflist[ifidx];
1868 if (!ifp && !(ifp = MALLOC(dhd->pub.osh, sizeof(dhd_if_t)))) {
1869 DHD_ERROR(("%s: OOM - dhd_if_t\n", __func__));
1870 return -ENOMEM;
1871 }
1872
1873 memset(ifp, 0, sizeof(dhd_if_t));
1874 ifp->info = dhd;
1875 dhd->iflist[ifidx] = ifp;
1876 strncpy(ifp->name, name, IFNAMSIZ);
1877 ifp->name[IFNAMSIZ] = '\0';
1878 if (mac_addr != NULL)
1879 memcpy(&ifp->mac_addr, mac_addr, ETHER_ADDR_LEN);
1880
1881 if (handle == NULL) {
1882 ifp->state = WLC_E_IF_ADD;
1883 ifp->idx = ifidx;
1884 ASSERT(dhd->sysioc_pid >= 0);
1885 up(&dhd->sysioc_sem);
1886 } else
1887 ifp->net = (struct net_device *)handle;
1888
1889 return 0;
1890}
1891
1892void dhd_del_if(dhd_info_t *dhd, int ifidx)
1893{
1894 dhd_if_t *ifp;
1895
1896 DHD_TRACE(("%s: idx %d\n", __func__, ifidx));
1897
1898 ASSERT(dhd && ifidx && (ifidx < DHD_MAX_IFS));
1899 ifp = dhd->iflist[ifidx];
1900 if (!ifp) {
1901 DHD_ERROR(("%s: Null interface\n", __func__));
1902 return;
1903 }
1904
1905 ifp->state = WLC_E_IF_DEL;
1906 ifp->idx = ifidx;
1907 ASSERT(dhd->sysioc_pid >= 0);
1908 up(&dhd->sysioc_sem);
1909}
1910
1911dhd_pub_t *dhd_attach(osl_t *osh, struct dhd_bus *bus, uint bus_hdrlen)
1912{
1913 dhd_info_t *dhd = NULL;
1914 struct net_device *net;
1915
1916 DHD_TRACE(("%s: Enter\n", __func__));
1917 /* updates firmware nvram path if it was provided as module
1918 paramters */
1919 if ((firmware_path != NULL) && (firmware_path[0] != '\0'))
1920 strcpy(fw_path, firmware_path);
1921 if ((nvram_path != NULL) && (nvram_path[0] != '\0'))
1922 strcpy(nv_path, nvram_path);
1923
1924 /* Allocate etherdev, including space for private structure */
a618cc28
JC		 1925 net = alloc_etherdev(sizeof(dhd));
1926 if (!net) {
cf2b4488
HP		 1927 DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
1928 goto fail;
1929 }
1930
1931 /* Allocate primary dhd_info */
a618cc28
JC		 1932 dhd = MALLOC(osh, sizeof(dhd_info_t));
1933 if (!dhd) {
cf2b4488
HP		 1934 DHD_ERROR(("%s: OOM - alloc dhd_info\n", __func__));
1935 goto fail;
1936 }
1937
1938 memset(dhd, 0, sizeof(dhd_info_t));
1939
1940 /*
1941 * Save the dhd_info into the priv
1942 */
1943 memcpy(netdev_priv(net), &dhd, sizeof(dhd));
1944 dhd->pub.osh = osh;
1945
1946 /* Set network interface name if it was provided as module parameter */
1947 if (iface_name[0]) {
1948 int len;
1949 char ch;
1950 strncpy(net->name, iface_name, IFNAMSIZ);
1951 net->name[IFNAMSIZ - 1] = 0;
1952 len = strlen(net->name);
1953 ch = net->name[len - 1];
1954 if ((ch > '9' || ch < '0') && (len < IFNAMSIZ - 2))
1955 strcat(net->name, "%d");
1956 }
1957
1958 if (dhd_add_if(dhd, 0, (void *)net, net->name, NULL, 0, 0) ==
1959 DHD_BAD_IF)
1960 goto fail;
1961
1962 net->netdev_ops = NULL;
1963 init_MUTEX(&dhd->proto_sem);
1964 /* Initialize other structure content */
1965 init_waitqueue_head(&dhd->ioctl_resp_wait);
1966 init_waitqueue_head(&dhd->ctrl_wait);
1967
1968 /* Initialize the spinlocks */
1969 spin_lock_init(&dhd->sdlock);
1970 spin_lock_init(&dhd->txqlock);
1971
1972 /* Link to info module */
1973 dhd->pub.info = dhd;
1974
1975 /* Link to bus module */
1976 dhd->pub.bus = bus;
1977 dhd->pub.hdrlen = bus_hdrlen;
1978
1979 /* Attach and link in the protocol */
1980 if (dhd_prot_attach(&dhd->pub) != 0) {
1981 DHD_ERROR(("dhd_prot_attach failed\n"));
1982 goto fail;
1983 }
1984#if defined(CONFIG_WIRELESS_EXT)
1985 /* Attach and link in the iw */
1986 if (wl_iw_attach(net, (void *)&dhd->pub) != 0) {
1987 DHD_ERROR(("wl_iw_attach failed\n"));
1988 goto fail;
1989 }
1990#endif /* defined(CONFIG_WIRELESS_EXT) */
1991
1992#ifdef CONFIG_CFG80211
1993 /* Attach and link in the cfg80211 */
1994 if (IS_CFG80211_FAVORITE()) {
1995 if (unlikely(wl_cfg80211_attach(net, &dhd->pub))) {
1996 DHD_ERROR(("wl_cfg80211_attach failed\n"));
1997 goto fail;
1998 }
1999 if (!NO_FW_REQ()) {
2000 strcpy(fw_path, wl_cfg80211_get_fwname());
2001 strcpy(nv_path, wl_cfg80211_get_nvramname());
2002 }
2003 wl_cfg80211_dbg_level(DBG_CFG80211_GET());
2004 }
2005#endif
2006
2007 /* Set up the watchdog timer */
2008 init_timer(&dhd->timer);
3deea904 2009 dhd->timer.data = (unsigned long) dhd;
cf2b4488
HP		 2010 dhd->timer.function = dhd_watchdog;
2011
2012 /* Initialize thread based operation and lock */
2013 init_MUTEX(&dhd->sdsem);
2014 if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0))
2015 dhd->threads_only = TRUE;
2016 else
2017 dhd->threads_only = FALSE;
2018
2019 if (dhd_dpc_prio >= 0) {
2020 /* Initialize watchdog thread */
2021 sema_init(&dhd->watchdog_sem, 0);
2022 init_completion(&dhd->watchdog_exited);
2023 dhd->watchdog_pid = kernel_thread(dhd_watchdog_thread, dhd, 0);
2024 } else {
2025 dhd->watchdog_pid = -1;
2026 }
2027
2028 /* Set up the bottom half handler */
2029 if (dhd_dpc_prio >= 0) {
2030 /* Initialize DPC thread */
2031 sema_init(&dhd->dpc_sem, 0);
2032 init_completion(&dhd->dpc_exited);
2033 dhd->dpc_pid = kernel_thread(dhd_dpc_thread, dhd, 0);
2034 } else {
3deea904 2035 tasklet_init(&dhd->tasklet, dhd_dpc, (unsigned long) dhd);
cf2b4488
HP		 2036 dhd->dpc_pid = -1;
2037 }
2038
2039 if (dhd_sysioc) {
2040 sema_init(&dhd->sysioc_sem, 0);
2041 init_completion(&dhd->sysioc_exited);
2042 dhd->sysioc_pid = kernel_thread(_dhd_sysioc_thread, dhd, 0);
2043 } else {
2044 dhd->sysioc_pid = -1;
2045 }
2046
2047 /*
2048 * Save the dhd_info into the priv
2049 */
2050 memcpy(netdev_priv(net), &dhd, sizeof(dhd));
2051
2052#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2053 g_bus = bus;
2054#endif
2055#if defined(CONFIG_PM_SLEEP)
2056 register_pm_notifier(&dhd_sleep_pm_notifier);
2057#endif /* defined(CONFIG_PM_SLEEP) */
2058 /* && defined(DHD_GPL) */
2059 /* Init lock suspend to prevent kernel going to suspend */
2060 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_TMOUT, "dhd_wake_lock");
2061 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_LINK_DOWN_TMOUT,
2062 "dhd_wake_lock_link_dw_event");
2063 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_PNO_FIND_TMOUT,
2064 "dhd_wake_lock_link_pno_find_event");
2065#ifdef CONFIG_HAS_EARLYSUSPEND
2066 dhd->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 20;
2067 dhd->early_suspend.suspend = dhd_early_suspend;
2068 dhd->early_suspend.resume = dhd_late_resume;
2069 register_early_suspend(&dhd->early_suspend);
2070#endif
2071
2072 return &dhd->pub;
2073
2074fail:
2075 if (net)
2076 free_netdev(net);
2077 if (dhd)
2078 dhd_detach(&dhd->pub);
2079
2080 return NULL;
2081}
2082
2083int dhd_bus_start(dhd_pub_t *dhdp)
2084{
2085 int ret = -1;
2086 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
2087#ifdef EMBEDDED_PLATFORM
2088 char iovbuf[WL_EVENTING_MASK_LEN + 12]; /* Room for "event_msgs" +
2089 '\0' + bitvec */
2090#endif /* EMBEDDED_PLATFORM */
2091
2092 ASSERT(dhd);
2093
2094 DHD_TRACE(("%s:\n", __func__));
2095
2096 /* try to download image and nvram to the dongle */
2097 if (dhd->pub.busstate == DHD_BUS_DOWN) {
2098 WAKE_LOCK_INIT(dhdp, WAKE_LOCK_DOWNLOAD, "dhd_bus_start");
2099 WAKE_LOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2100 if (!(dhd_bus_download_firmware(dhd->pub.bus, dhd->pub.osh,
2101 fw_path, nv_path))) {
2102 DHD_ERROR(("%s: dhdsdio_probe_download failed. "
2103 "firmware = %s nvram = %s\n",
2104 __func__, fw_path, nv_path));
2105 WAKE_UNLOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2106 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_DOWNLOAD);
2107 return -1;
2108 }
2109
2110 WAKE_UNLOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2111 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_DOWNLOAD);
2112 }
2113
2114 /* Start the watchdog timer */
2115 dhd->pub.tickcnt = 0;
2116 dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
2117
2118 /* Bring up the bus */
a618cc28
JC		 2119 ret = dhd_bus_init(&dhd->pub, TRUE);
2120 if (ret != 0) {
cf2b4488
HP		 2121 DHD_ERROR(("%s, dhd_bus_init failed %d\n", __func__, ret));
2122 return ret;
2123 }
2124#if defined(OOB_INTR_ONLY)
2125 /* Host registration for OOB interrupt */
2126 if (bcmsdh_register_oob_intr(dhdp)) {
2127 del_timer_sync(&dhd->timer);
2128 dhd->wd_timer_valid = FALSE;
2129 DHD_ERROR(("%s Host failed to resgister for OOB\n", __func__));
2130 return -ENODEV;
2131 }
2132
2133 /* Enable oob at firmware */
2134 dhd_enable_oob_intr(dhd->pub.bus, TRUE);
2135#endif /* defined(OOB_INTR_ONLY) */
2136
2137 /* If bus is not ready, can't come up */
2138 if (dhd->pub.busstate != DHD_BUS_DATA) {
2139 del_timer_sync(&dhd->timer);
2140 dhd->wd_timer_valid = FALSE;
2141 DHD_ERROR(("%s failed bus is not ready\n", __func__));
2142 return -ENODEV;
2143 }
2144#ifdef EMBEDDED_PLATFORM
2145 bcm_mkiovar("event_msgs", dhdp->eventmask, WL_EVENTING_MASK_LEN, iovbuf,
2146 sizeof(iovbuf));
2147 dhdcdc_query_ioctl(dhdp, 0, WLC_GET_VAR, iovbuf, sizeof(iovbuf));
2148 bcopy(iovbuf, dhdp->eventmask, WL_EVENTING_MASK_LEN);
2149
2150 setbit(dhdp->eventmask, WLC_E_SET_SSID);
2151 setbit(dhdp->eventmask, WLC_E_PRUNE);
2152 setbit(dhdp->eventmask, WLC_E_AUTH);
2153 setbit(dhdp->eventmask, WLC_E_REASSOC);
2154 setbit(dhdp->eventmask, WLC_E_REASSOC_IND);
2155 setbit(dhdp->eventmask, WLC_E_DEAUTH_IND);
2156 setbit(dhdp->eventmask, WLC_E_DISASSOC_IND);
2157 setbit(dhdp->eventmask, WLC_E_DISASSOC);
2158 setbit(dhdp->eventmask, WLC_E_JOIN);
2159 setbit(dhdp->eventmask, WLC_E_ASSOC_IND);
2160 setbit(dhdp->eventmask, WLC_E_PSK_SUP);
2161 setbit(dhdp->eventmask, WLC_E_LINK);
2162 setbit(dhdp->eventmask, WLC_E_NDIS_LINK);
2163 setbit(dhdp->eventmask, WLC_E_MIC_ERROR);
2164 setbit(dhdp->eventmask, WLC_E_PMKID_CACHE);
2165 setbit(dhdp->eventmask, WLC_E_TXFAIL);
2166 setbit(dhdp->eventmask, WLC_E_JOIN_START);
2167 setbit(dhdp->eventmask, WLC_E_SCAN_COMPLETE);
2168#ifdef PNO_SUPPORT
2169 setbit(dhdp->eventmask, WLC_E_PFN_NET_FOUND);
2170#endif /* PNO_SUPPORT */
2171
2172/* enable dongle roaming event */
2173
2174 dhdp->pktfilter_count = 1;
2175 /* Setup filter to allow only unicast */
2176 dhdp->pktfilter[0] = "100 0 0 0 0x01 0x00";
2177#endif /* EMBEDDED_PLATFORM */
2178
2179 /* Bus is ready, do any protocol initialization */
a618cc28
JC		 2180 ret = dhd_prot_init(&dhd->pub);
2181 if (ret < 0)
cf2b4488
HP		 2182 return ret;
2183
2184 return 0;
2185}
2186
2187int
2188dhd_iovar(dhd_pub_t *pub, int ifidx, char *name, char *cmd_buf, uint cmd_len,
2189 int set)
2190{
2191 char buf[strlen(name) + 1 + cmd_len];
2192 int len = sizeof(buf);
2193 wl_ioctl_t ioc;
2194 int ret;
2195
2196 len = bcm_mkiovar(name, cmd_buf, cmd_len, buf, len);
2197
2198 memset(&ioc, 0, sizeof(ioc));
2199
2200 ioc.cmd = set ? WLC_SET_VAR : WLC_GET_VAR;
2201 ioc.buf = buf;
2202 ioc.len = len;
2203 ioc.set = set;
2204
2205 ret = dhd_prot_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);
2206 if (!set && ret >= 0)
2207 memcpy(cmd_buf, buf, cmd_len);
2208
2209 return ret;
2210}
2211
2212static struct net_device_ops dhd_ops_pri = {
2213 .ndo_open = dhd_open,
2214 .ndo_stop = dhd_stop,
2215 .ndo_get_stats = dhd_get_stats,
2216 .ndo_do_ioctl = dhd_ioctl_entry,
2217 .ndo_start_xmit = dhd_start_xmit,
2218 .ndo_set_mac_address = dhd_set_mac_address,
2219 .ndo_set_multicast_list = dhd_set_multicast_list
2220};
2221
2222static struct net_device_ops dhd_ops_virt = {
2223 .ndo_get_stats = dhd_get_stats,
2224 .ndo_do_ioctl = dhd_ioctl_entry,
2225 .ndo_start_xmit = dhd_start_xmit,
2226 .ndo_set_mac_address = dhd_set_mac_address,
2227 .ndo_set_multicast_list = dhd_set_multicast_list
2228};
2229
2230int dhd_net_attach(dhd_pub_t *dhdp, int ifidx)
2231{
2232 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
2233 struct net_device *net;
3fd79f7c 2234 u8 temp_addr[ETHER_ADDR_LEN] = {
cf2b4488
HP		 2235 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33};
2236
2237 DHD_TRACE(("%s: ifidx %d\n", __func__, ifidx));
2238
2239 ASSERT(dhd && dhd->iflist[ifidx]);
2240
2241 net = dhd->iflist[ifidx]->net;
2242 ASSERT(net);
2243
2244 ASSERT(!net->netdev_ops);
2245 net->netdev_ops = &dhd_ops_virt;
2246
2247 net->netdev_ops = &dhd_ops_pri;
2248
2249 /*
2250 * We have to use the primary MAC for virtual interfaces
2251 */
2252 if (ifidx != 0) {
2253 /* for virtual interfaces use the primary MAC */
2254 memcpy(temp_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
2255
2256 }
2257
2258 if (ifidx == 1) {
2259 DHD_TRACE(("%s ACCESS POINT MAC: \n", __func__));
2260 /* ACCESSPOINT INTERFACE CASE */
2261 temp_addr[0] |= 0X02; /* set bit 2 ,
2262 - Locally Administered address */
2263
2264 }
2265 net->hard_header_len = ETH_HLEN + dhd->pub.hdrlen;
2266 net->ethtool_ops = &dhd_ethtool_ops;
2267
2268#if defined(CONFIG_WIRELESS_EXT)
2269#if defined(CONFIG_CFG80211)
2270 if (!IS_CFG80211_FAVORITE()) {
2271#endif
2272#if WIRELESS_EXT < 19
2273 net->get_wireless_stats = dhd_get_wireless_stats;
2274#endif /* WIRELESS_EXT < 19 */
2275#if WIRELESS_EXT > 12
2276 net->wireless_handlers =
2277 (struct iw_handler_def *)&wl_iw_handler_def;
2278#endif /* WIRELESS_EXT > 12 */
2279#if defined(CONFIG_CFG80211)
2280 }
2281#endif
2282#endif /* defined(CONFIG_WIRELESS_EXT) */
2283
2284 dhd->pub.rxsz = net->mtu + net->hard_header_len + dhd->pub.hdrlen;
2285
2286 memcpy(net->dev_addr, temp_addr, ETHER_ADDR_LEN);
2287
2288 if (register_netdev(net) != 0) {
2289 DHD_ERROR(("%s: couldn't register the net device\n",
2290 __func__));
2291 goto fail;
2292 }
2293
2294 printf("%s: Broadcom Dongle Host Driver\n", net->name);
2295
2296 return 0;
2297
2298fail:
2299 net->netdev_ops = NULL;
2300 return BCME_ERROR;
2301}
2302
2303void dhd_bus_detach(dhd_pub_t *dhdp)
2304{
2305 dhd_info_t *dhd;
2306
2307 DHD_TRACE(("%s: Enter\n", __func__));
2308
2309 if (dhdp) {
2310 dhd = (dhd_info_t *) dhdp->info;
2311 if (dhd) {
2312 /* Stop the protocol module */
2313 dhd_prot_stop(&dhd->pub);
2314
2315 /* Stop the bus module */
2316 dhd_bus_stop(dhd->pub.bus, TRUE);
2317#if defined(OOB_INTR_ONLY)
2318 bcmsdh_unregister_oob_intr();
2319#endif /* defined(OOB_INTR_ONLY) */
2320
2321 /* Clear the watchdog timer */
2322 del_timer_sync(&dhd->timer);
2323 dhd->wd_timer_valid = FALSE;
2324 }
2325 }
2326}
2327
2328void dhd_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 dhd_if_t *ifp;
2338 int i;
2339
2340#if defined(CONFIG_HAS_EARLYSUSPEND)
2341 if (dhd->early_suspend.suspend)
2342 unregister_early_suspend(&dhd->early_suspend);
2343#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
2344
2345 for (i = 1; i < DHD_MAX_IFS; i++)
2346 if (dhd->iflist[i])
2347 dhd_del_if(dhd, i);
2348
2349 ifp = dhd->iflist[0];
2350 ASSERT(ifp);
2351 if (ifp->net->netdev_ops == &dhd_ops_pri) {
2352 dhd_stop(ifp->net);
2353 unregister_netdev(ifp->net);
2354 }
2355
2356 if (dhd->watchdog_pid >= 0) {
2357 KILL_PROC(dhd->watchdog_pid, SIGTERM);
2358 wait_for_completion(&dhd->watchdog_exited);
2359 }
2360
2361 if (dhd->dpc_pid >= 0) {
2362 KILL_PROC(dhd->dpc_pid, SIGTERM);
2363 wait_for_completion(&dhd->dpc_exited);
2364 } else
2365 tasklet_kill(&dhd->tasklet);
2366
2367 if (dhd->sysioc_pid >= 0) {
2368 KILL_PROC(dhd->sysioc_pid, SIGTERM);
2369 wait_for_completion(&dhd->sysioc_exited);
2370 }
2371
2372 dhd_bus_detach(dhdp);
2373
2374 if (dhdp->prot)
2375 dhd_prot_detach(dhdp);
2376
2377#if defined(CONFIG_WIRELESS_EXT)
2378 wl_iw_detach();
2379#endif /* (CONFIG_WIRELESS_EXT) */
2380
2381#ifdef CONFIG_CFG80211
2382 if (IS_CFG80211_FAVORITE())
2383 wl_cfg80211_detach();
2384#endif /* CONFIG_CFG80211 */
2385
2386#if defined(CONFIG_PM_SLEEP)
2387 unregister_pm_notifier(&dhd_sleep_pm_notifier);
2388#endif /* defined(CONFIG_PM_SLEEP) */
2389 /* && defined(DHD_GPL) */
2390 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_TMOUT);
2391 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_LINK_DOWN_TMOUT);
2392 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_PNO_FIND_TMOUT);
2393 free_netdev(ifp->net);
2394 MFREE(dhd->pub.osh, ifp, sizeof(*ifp));
2395 MFREE(dhd->pub.osh, dhd, sizeof(*dhd));
2396 }
2397 }
2398}
2399
2400static void __exit dhd_module_cleanup(void)
2401{
2402 DHD_TRACE(("%s: Enter\n", __func__));
2403
2404 dhd_bus_unregister();
2405#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2406 wifi_del_dev();
2407#endif
2408 /* Call customer gpio to turn off power with WL_REG_ON signal */
2409 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
2410}
2411
2412static int __init dhd_module_init(void)
2413{
2414 int error;
2415
2416 DHD_TRACE(("%s: Enter\n", __func__));
2417
2418 /* Sanity check on the module parameters */
2419 do {
2420 /* Both watchdog and DPC as tasklets are ok */
2421 if ((dhd_watchdog_prio < 0) && (dhd_dpc_prio < 0))
2422 break;
2423
2424 /* If both watchdog and DPC are threads, TX must be deferred */
2425 if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0)
2426 && dhd_deferred_tx)
2427 break;
2428
2429 DHD_ERROR(("Invalid module parameters.\n"));
2430 return -EINVAL;
2431 } while (0);
2432 /* Call customer gpio to turn on power with WL_REG_ON signal */
2433 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_ON);
2434
2435#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2436 sema_init(&wifi_control_sem, 0);
2437
2438 error = wifi_add_dev();
2439 if (error) {
2440 DHD_ERROR(("%s: platform_driver_register failed\n", __func__));
2441 goto faild;
2442 }
2443
2444 /* Waiting callback after platform_driver_register is done or
2445 exit with error */
2446 if (down_timeout(&wifi_control_sem, msecs_to_jiffies(1000)) != 0) {
2447 printk(KERN_ERR "%s: platform_driver_register timeout\n",
2448 __func__);
2449 /* remove device */
2450 wifi_del_dev();
2451 goto faild;
2452 }
2453#endif /* #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
2454
2455 error = dhd_bus_register();
2456
2457 if (!error)
2458 printf("\n%s\n", dhd_version);
2459 else {
2460 DHD_ERROR(("%s: sdio_register_driver failed\n", __func__));
2461 goto faild;
2462 }
2463 return error;
2464
2465faild:
2466 /* turn off power and exit */
2467 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
2468 return -EINVAL;
2469}
2470
2471module_init(dhd_module_init);
2472module_exit(dhd_module_cleanup);
2473
2474/*
2475 * OS specific functions required to implement DHD driver in OS independent way
2476 */
2477int dhd_os_proto_block(dhd_pub_t *pub)
2478{
2479 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2480
2481 if (dhd) {
2482 down(&dhd->proto_sem);
2483 return 1;
2484 }
2485 return 0;
2486}
2487
2488int dhd_os_proto_unblock(dhd_pub_t *pub)
2489{
2490 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2491
2492 if (dhd) {
2493 up(&dhd->proto_sem);
2494 return 1;
2495 }
2496
2497 return 0;
2498}
2499
2500unsigned int dhd_os_get_ioctl_resp_timeout(void)
2501{
2502 return (unsigned int)dhd_ioctl_timeout_msec;
2503}
2504
2505void dhd_os_set_ioctl_resp_timeout(unsigned int timeout_msec)
2506{
2507 dhd_ioctl_timeout_msec = (int)timeout_msec;
2508}
2509
2510int dhd_os_ioctl_resp_wait(dhd_pub_t *pub, uint *condition, bool *pending)
2511{
2512 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2513 DECLARE_WAITQUEUE(wait, current);
2514 int timeout = dhd_ioctl_timeout_msec;
2515
2516 /* Convert timeout in millsecond to jiffies */
2517 timeout = timeout * HZ / 1000;
2518
2519 /* Wait until control frame is available */
2520 add_wait_queue(&dhd->ioctl_resp_wait, &wait);
2521 set_current_state(TASK_INTERRUPTIBLE);
2522
2523 while (!(*condition) && (!signal_pending(current) && timeout))
2524 timeout = schedule_timeout(timeout);
2525
2526 if (signal_pending(current))
2527 *pending = TRUE;
2528
2529 set_current_state(TASK_RUNNING);
2530 remove_wait_queue(&dhd->ioctl_resp_wait, &wait);
2531
2532 return timeout;
2533}
2534
2535int dhd_os_ioctl_resp_wake(dhd_pub_t *pub)
2536{
2537 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2538
2539 if (waitqueue_active(&dhd->ioctl_resp_wait))
2540 wake_up_interruptible(&dhd->ioctl_resp_wait);
2541
2542 return 0;
2543}
2544
2545void dhd_os_wd_timer(void *bus, uint wdtick)
2546{
2547 dhd_pub_t *pub = bus;
5f782dee 2548 static uint save_dhd_watchdog_ms;
cf2b4488
HP		 2549 dhd_info_t *dhd = (dhd_info_t *) pub->info;
2550
2551 /* don't start the wd until fw is loaded */
2552 if (pub->busstate == DHD_BUS_DOWN)
2553 return;
2554
2555 /* Totally stop the timer */
2556 if (!wdtick && dhd->wd_timer_valid == TRUE) {
2557 del_timer_sync(&dhd->timer);
2558 dhd->wd_timer_valid = FALSE;
2559 save_dhd_watchdog_ms = wdtick;
2560 return;
2561 }
2562
2563 if (wdtick) {
2564 dhd_watchdog_ms = (uint) wdtick;
2565
2566 if (save_dhd_watchdog_ms != dhd_watchdog_ms) {
2567
2568 if (dhd->wd_timer_valid == TRUE)
2569 /* Stop timer and restart at new value */
2570 del_timer_sync(&dhd->timer);
2571
2572 /* Create timer again when watchdog period is
2573 dynamically changed or in the first instance
2574 */
2575 dhd->timer.expires =
2576 jiffies + dhd_watchdog_ms * HZ / 1000;
2577 add_timer(&dhd->timer);
2578
2579 } else {
2580 /* Re arm the timer, at last watchdog period */
2581 mod_timer(&dhd->timer,
2582 jiffies + dhd_watchdog_ms * HZ / 1000);
2583 }
2584
2585 dhd->wd_timer_valid = TRUE;
2586 save_dhd_watchdog_ms = wdtick;
2587 }
2588}
2589
2590void *dhd_os_open_image(char *filename)
2591{
2592 struct file *fp;
2593
2594#ifdef CONFIG_CFG80211
2595 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2596 return wl_cfg80211_request_fw(filename);
2597#endif
2598
2599 fp = filp_open(filename, O_RDONLY, 0);
2600 /*
2601 * 2.6.11 (FC4) supports filp_open() but later revs don't?
2602 * Alternative:
2603 * fp = open_namei(AT_FDCWD, filename, O_RD, 0);
2604 * ???
2605 */
2606 if (IS_ERR(fp))
2607 fp = NULL;
2608
2609 return fp;
2610}
2611
2612int dhd_os_get_image_block(char *buf, int len, void *image)
2613{
2614 struct file *fp = (struct file *)image;
2615 int rdlen;
2616
2617#ifdef CONFIG_CFG80211
2618 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2619 return wl_cfg80211_read_fw(buf, len);
2620#endif
2621
2622 if (!image)
2623 return 0;
2624
2625 rdlen = kernel_read(fp, fp->f_pos, buf, len);
2626 if (rdlen > 0)
2627 fp->f_pos += rdlen;
2628
2629 return rdlen;
2630}
2631
2632void dhd_os_close_image(void *image)
2633{
2634#ifdef CONFIG_CFG80211
2635 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2636 return wl_cfg80211_release_fw();
2637#endif
2638 if (image)
2639 filp_close((struct file *)image, NULL);
2640}
2641
2642void dhd_os_sdlock(dhd_pub_t *pub)
2643{
2644 dhd_info_t *dhd;
2645
2646 dhd = (dhd_info_t *) (pub->info);
2647
2648 if (dhd->threads_only)
2649 down(&dhd->sdsem);
2650 else
2651 spin_lock_bh(&dhd->sdlock);
2652}
2653
2654void dhd_os_sdunlock(dhd_pub_t *pub)
2655{
2656 dhd_info_t *dhd;
2657
2658 dhd = (dhd_info_t *) (pub->info);
2659
2660 if (dhd->threads_only)
2661 up(&dhd->sdsem);
2662 else
2663 spin_unlock_bh(&dhd->sdlock);
2664}
2665
2666void dhd_os_sdlock_txq(dhd_pub_t *pub)
2667{
2668 dhd_info_t *dhd;
2669
2670 dhd = (dhd_info_t *) (pub->info);
2671 spin_lock_bh(&dhd->txqlock);
2672}
2673
2674void dhd_os_sdunlock_txq(dhd_pub_t *pub)
2675{
2676 dhd_info_t *dhd;
2677
2678 dhd = (dhd_info_t *) (pub->info);
2679 spin_unlock_bh(&dhd->txqlock);
2680}
2681
2682void dhd_os_sdlock_rxq(dhd_pub_t *pub)
2683{
2684}
2685
2686void dhd_os_sdunlock_rxq(dhd_pub_t *pub)
2687{
2688}
2689
2690void dhd_os_sdtxlock(dhd_pub_t *pub)
2691{
2692 dhd_os_sdlock(pub);
2693}
2694
2695void dhd_os_sdtxunlock(dhd_pub_t *pub)
2696{
2697 dhd_os_sdunlock(pub);
2698}
2699
2700#ifdef DHD_USE_STATIC_BUF
2701void *dhd_os_prealloc(int section, unsigned long size)
2702{
2703#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2704 void *alloc_ptr = NULL;
2705 if (wifi_control_data && wifi_control_data->mem_prealloc) {
2706 alloc_ptr = wifi_control_data->mem_prealloc(section, size);
2707 if (alloc_ptr) {
2708 DHD_INFO(("success alloc section %d\n", section));
2709 bzero(alloc_ptr, size);
2710 return alloc_ptr;
2711 }
2712 }
2713
2714 DHD_ERROR(("can't alloc section %d\n", section));
2715 return 0;
2716#else
2717 return MALLOC(0, size);
2718#endif /* #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
2719}
2720#endif /* DHD_USE_STATIC_BUF */
2721#if defined(CONFIG_WIRELESS_EXT)
2722struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev)
2723{
2724 int res = 0;
2725 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2726
2727 res = wl_iw_get_wireless_stats(dev, &dhd->iw.wstats);
2728
2729 if (res == 0)
2730 return &dhd->iw.wstats;
2731 else
2732 return NULL;
2733}
2734#endif /* defined(CONFIG_WIRELESS_EXT) */
2735
2736static int
2737dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
2738 wl_event_msg_t *event, void **data)
2739{
2740 int bcmerror = 0;
2741
2742 ASSERT(dhd != NULL);
2743
2744 bcmerror = wl_host_event(dhd, ifidx, pktdata, event, data);
2745 if (bcmerror != BCME_OK)
2746 return bcmerror;
2747
2748#if defined(CONFIG_WIRELESS_EXT)
2749#if defined(CONFIG_CFG80211)
2750 if (!IS_CFG80211_FAVORITE()) {
2751#endif
2752 if ((dhd->iflist[*ifidx] == NULL)
2753 || (dhd->iflist[*ifidx]->net == NULL)) {
2754 DHD_ERROR(("%s Exit null pointer\n", __func__));
2755 return bcmerror;
2756 }
2757
2758 if (dhd->iflist[*ifidx]->net)
2759 wl_iw_event(dhd->iflist[*ifidx]->net, event, *data);
2760#if defined(CONFIG_CFG80211)
2761 }
2762#endif
2763#endif /* defined(CONFIG_WIRELESS_EXT) */
2764
2765#ifdef CONFIG_CFG80211
2766 if (IS_CFG80211_FAVORITE()) {
2767 ASSERT(dhd->iflist[*ifidx] != NULL);
2768 ASSERT(dhd->iflist[*ifidx]->net != NULL);
2769 if (dhd->iflist[*ifidx]->net)
2770 wl_cfg80211_event(dhd->iflist[*ifidx]->net, event,
2771 *data);
2772 }
2773#endif
2774
2775 return bcmerror;
2776}
2777
2778/* send up locally generated event */
2779void dhd_sendup_event(dhd_pub_t *dhdp, wl_event_msg_t *event, void *data)
2780{
2781 switch (ntoh32(event->event_type)) {
2782 default:
2783 break;
2784 }
2785}
2786
2787void dhd_wait_for_event(dhd_pub_t *dhd, bool *lockvar)
2788{
2789 struct dhd_info *dhdinfo = dhd->info;
2790 dhd_os_sdunlock(dhd);
2791 wait_event_interruptible_timeout(dhdinfo->ctrl_wait,
2792 (*lockvar == FALSE), HZ * 2);
2793 dhd_os_sdlock(dhd);
2794 return;
2795}
2796
2797void dhd_wait_event_wakeup(dhd_pub_t *dhd)
2798{
2799 struct dhd_info *dhdinfo = dhd->info;
2800 if (waitqueue_active(&dhdinfo->ctrl_wait))
2801 wake_up_interruptible(&dhdinfo->ctrl_wait);
2802 return;
2803}
2804
3fd79f7c 2805int dhd_dev_reset(struct net_device *dev, u8 flag)
cf2b4488
HP		 2806{
2807 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2808
2809 /* Turning off watchdog */
2810 if (flag)
2811 dhd_os_wd_timer(&dhd->pub, 0);
2812
2813 dhd_bus_devreset(&dhd->pub, flag);
2814
2815 /* Turning on watchdog back */
2816 if (!flag)
2817 dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
2818 DHD_ERROR(("%s: WLAN OFF DONE\n", __func__));
2819
2820 return 1;
2821}
2822
2823int net_os_set_suspend_disable(struct net_device *dev, int val)
2824{
2825 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2826 int ret = 0;
2827
2828 if (dhd) {
2829 ret = dhd->pub.suspend_disable_flag;
2830 dhd->pub.suspend_disable_flag = val;
2831 }
2832 return ret;
2833}
2834
2835int net_os_set_suspend(struct net_device *dev, int val)
2836{
2837 int ret = 0;
2838#if defined(CONFIG_HAS_EARLYSUSPEND)
2839 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2840
2841 if (dhd) {
2842 dhd_os_proto_block(&dhd->pub);
2843 ret = dhd_set_suspend(val, &dhd->pub);
2844 dhd_os_proto_unblock(&dhd->pub);
2845 }
2846#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
2847 return ret;
2848}
2849
2850int net_os_set_dtim_skip(struct net_device *dev, int val)
2851{
2852 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2853
2854 if (dhd)
2855 dhd->pub.dtim_skip = val;
2856
2857 return 0;
2858}
2859
2860int net_os_set_packet_filter(struct net_device *dev, int val)
2861{
2862 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2863 int ret = 0;
2864
2865 /* Packet filtering is set only if we still in early-suspend and
2866 * we need either to turn it ON or turn it OFF
2867 * We can always turn it OFF in case of early-suspend, but we turn it
2868 * back ON only if suspend_disable_flag was not set
2869 */
2870 if (dhd && dhd->pub.up) {
2871 dhd_os_proto_block(&dhd->pub);
2872 if (dhd->pub.in_suspend) {
2873 if (!val || (val && !dhd->pub.suspend_disable_flag))
2874 dhd_set_packet_filter(val, &dhd->pub);
2875 }
2876 dhd_os_proto_unblock(&dhd->pub);
2877 }
2878 return ret;
2879}
2880
2881void dhd_dev_init_ioctl(struct net_device *dev)
2882{
2883 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2884
2885 dhd_preinit_ioctls(&dhd->pub);
2886}
2887
2888#ifdef PNO_SUPPORT
2889/* Linux wrapper to call common dhd_pno_clean */
2890int dhd_dev_pno_reset(struct net_device *dev)
2891{
2892 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2893
2894 return dhd_pno_clean(&dhd->pub);
2895}
2896
2897/* Linux wrapper to call common dhd_pno_enable */
2898int dhd_dev_pno_enable(struct net_device *dev, int pfn_enabled)
2899{
2900 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2901
2902 return dhd_pno_enable(&dhd->pub, pfn_enabled);
2903}
2904
2905/* Linux wrapper to call common dhd_pno_set */
2906int
2907dhd_dev_pno_set(struct net_device *dev, wlc_ssid_t *ssids_local, int nssid,
580a0bd9 2908 unsigned char scan_fr)
cf2b4488
HP		 2909{
2910 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2911
2912 return dhd_pno_set(&dhd->pub, ssids_local, nssid, scan_fr);
2913}
2914
2915/* Linux wrapper to get pno status */
2916int dhd_dev_get_pno_status(struct net_device *dev)
2917{
2918 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2919
2920 return dhd_pno_get_status(&dhd->pub);
2921}
2922
2923#endif /* PNO_SUPPORT */
2924
2925static int dhd_get_pend_8021x_cnt(dhd_info_t *dhd)
2926{
2927 return atomic_read(&dhd->pend_8021x_cnt);
2928}
2929
2930#define MAX_WAIT_FOR_8021X_TX 10
2931
2932int dhd_wait_pend8021x(struct net_device *dev)
2933{
2934 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2935 int timeout = 10 * HZ / 1000;
2936 int ntimes = MAX_WAIT_FOR_8021X_TX;
2937 int pend = dhd_get_pend_8021x_cnt(dhd);
2938
2939 while (ntimes && pend) {
2940 if (pend) {
2941 set_current_state(TASK_INTERRUPTIBLE);
2942 schedule_timeout(timeout);
2943 set_current_state(TASK_RUNNING);
2944 ntimes--;
2945 }
2946 pend = dhd_get_pend_8021x_cnt(dhd);
2947 }
2948 return pend;
2949}
2950
2951#ifdef DHD_DEBUG
3fd79f7c 2952int write_to_file(dhd_pub_t *dhd, u8 *buf, int size)
cf2b4488
HP		 2953{
2954 int ret = 0;
2955 struct file *fp;
2956 mm_segment_t old_fs;
2957 loff_t pos = 0;
2958
2959 /* change to KERNEL_DS address limit */
2960 old_fs = get_fs();
2961 set_fs(KERNEL_DS);
2962
2963 /* open file to write */
2964 fp = filp_open("/tmp/mem_dump", O_WRONLY | O_CREAT, 0640);
2965 if (!fp) {
2966 printf("%s: open file error\n", __func__);
2967 ret = -1;
2968 goto exit;
2969 }
2970
2971 /* Write buf to file */
2972 fp->f_op->write(fp, buf, size, &pos);
2973
2974exit:
2975 /* free buf before return */
2976 MFREE(dhd->osh, buf, size);
2977 /* close file before return */
2978 if (fp)
2979 filp_close(fp, current->files);
2980 /* restore previous address limit */
2981 set_fs(old_fs);
2982
2983 return ret;
2984}
2985#endif /* DHD_DEBUG */
kernel source for telekom puls (alcatel/mediatek)