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staging: brcm80211: add fullmac driver
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / staging / brcm80211 / brcmfmac / dhd_linux.c
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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>
30#include <linux/random.h>
31#include <linux/spinlock.h>
32#include <linux/ethtool.h>
33#include <linux/fcntl.h>
34#include <linux/fs.h>
35
36#include <asm/uaccess.h>
37#include <asm/unaligned.h>
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
61static struct wifi_platform_data *wifi_control_data = NULL;
62static struct resource *wifi_irqres = NULL;
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
188/* Linux wireless extension support */
189#if defined(CONFIG_WIRELESS_EXT)
190#include <wl_iw.h>
191extern wl_iw_extra_params_t g_wl_iw_params;
192#endif /* defined(CONFIG_WIRELESS_EXT) */
193
194#if defined(CONFIG_HAS_EARLYSUSPEND)
195#include <linux/earlysuspend.h>
196extern int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf,
197 uint len);
198#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
199
200#ifdef PKT_FILTER_SUPPORT
201extern void dhd_pktfilter_offload_set(dhd_pub_t *dhd, char *arg);
202extern void dhd_pktfilter_offload_enable(dhd_pub_t *dhd, char *arg, int enable,
203 int master_mode);
204#endif
205
206/* Interface control information */
207typedef struct dhd_if {
208 struct dhd_info *info; /* back pointer to dhd_info */
209 /* OS/stack specifics */
210 struct net_device *net;
211 struct net_device_stats stats;
212 int idx; /* iface idx in dongle */
213 int state; /* interface state */
214 uint subunit; /* subunit */
215 uint8 mac_addr[ETHER_ADDR_LEN]; /* assigned MAC address */
216 bool attached; /* Delayed attachment when unset */
217 bool txflowcontrol; /* Per interface flow control indicator */
218 char name[IFNAMSIZ + 1]; /* linux interface name */
219} dhd_if_t;
220
221/* Local private structure (extension of pub) */
222typedef struct dhd_info {
223#if defined(CONFIG_WIRELESS_EXT)
224 wl_iw_t iw; /* wireless extensions state (must be first) */
225#endif /* defined(CONFIG_WIRELESS_EXT) */
226
227 dhd_pub_t pub;
228
229 /* OS/stack specifics */
230 dhd_if_t *iflist[DHD_MAX_IFS];
231
232 struct semaphore proto_sem;
233 wait_queue_head_t ioctl_resp_wait;
234 struct timer_list timer;
235 bool wd_timer_valid;
236 struct tasklet_struct tasklet;
237 spinlock_t sdlock;
238 spinlock_t txqlock;
239 /* Thread based operation */
240 bool threads_only;
241 struct semaphore sdsem;
242 long watchdog_pid;
243 struct semaphore watchdog_sem;
244 struct completion watchdog_exited;
245 long dpc_pid;
246 struct semaphore dpc_sem;
247 struct completion dpc_exited;
248
249 /* Thread to issue ioctl for multicast */
250 long sysioc_pid;
251 struct semaphore sysioc_sem;
252 struct completion sysioc_exited;
253 bool set_multicast;
254 bool set_macaddress;
255 struct ether_addr macvalue;
256 wait_queue_head_t ctrl_wait;
257 atomic_t pend_8021x_cnt;
258
259#ifdef CONFIG_HAS_EARLYSUSPEND
260 struct early_suspend early_suspend;
261#endif /* CONFIG_HAS_EARLYSUSPEND */
262} dhd_info_t;
263
264/* Definitions to provide path to the firmware and nvram
265 * example nvram_path[MOD_PARAM_PATHLEN]="/projects/wlan/nvram.txt"
266 */
267char firmware_path[MOD_PARAM_PATHLEN];
268char nvram_path[MOD_PARAM_PATHLEN];
269
270/* load firmware and/or nvram values from the filesystem */
271module_param_string(firmware_path, firmware_path, MOD_PARAM_PATHLEN, 0);
272module_param_string(nvram_path, nvram_path, MOD_PARAM_PATHLEN, 0);
273
274/* Error bits */
275module_param(dhd_msg_level, int, 0);
276
277/* Spawn a thread for system ioctls (set mac, set mcast) */
278uint dhd_sysioc = TRUE;
279module_param(dhd_sysioc, uint, 0);
280
281/* Watchdog interval */
282uint dhd_watchdog_ms = 10;
283module_param(dhd_watchdog_ms, uint, 0);
284
285#ifdef DHD_DEBUG
286/* Console poll interval */
287uint dhd_console_ms = 0;
288module_param(dhd_console_ms, uint, 0);
289#endif /* DHD_DEBUG */
290
291/* ARP offload agent mode : Enable ARP Host Auto-Reply
292and ARP Peer Auto-Reply */
293uint dhd_arp_mode = 0xb;
294module_param(dhd_arp_mode, uint, 0);
295
296/* ARP offload enable */
297uint dhd_arp_enable = TRUE;
298module_param(dhd_arp_enable, uint, 0);
299
300/* Global Pkt filter enable control */
301uint dhd_pkt_filter_enable = TRUE;
302module_param(dhd_pkt_filter_enable, uint, 0);
303
304/* Pkt filter init setup */
305uint dhd_pkt_filter_init = 0;
306module_param(dhd_pkt_filter_init, uint, 0);
307
308/* Pkt filter mode control */
309uint dhd_master_mode = TRUE;
310module_param(dhd_master_mode, uint, 1);
311
312/* Watchdog thread priority, -1 to use kernel timer */
313int dhd_watchdog_prio = 97;
314module_param(dhd_watchdog_prio, int, 0);
315
316/* DPC thread priority, -1 to use tasklet */
317int dhd_dpc_prio = 98;
318module_param(dhd_dpc_prio, int, 0);
319
320/* DPC thread priority, -1 to use tasklet */
321extern int dhd_dongle_memsize;
322module_param(dhd_dongle_memsize, int, 0);
323
324/* Contorl fw roaming */
325#ifdef CUSTOMER_HW2
326uint dhd_roam = 0;
327#else
328uint dhd_roam = 1;
329#endif
330
331/* Control radio state */
332uint dhd_radio_up = 1;
333
334/* Network inteface name */
335char iface_name[IFNAMSIZ];
336module_param_string(iface_name, iface_name, IFNAMSIZ, 0);
337
338#define DAEMONIZE(a) daemonize(a); \
339 allow_signal(SIGKILL); \
340 allow_signal(SIGTERM);
341
342#define BLOCKABLE() (!in_atomic())
343
344/* The following are specific to the SDIO dongle */
345
346/* IOCTL response timeout */
347int dhd_ioctl_timeout_msec = IOCTL_RESP_TIMEOUT;
348
349/* Idle timeout for backplane clock */
350int dhd_idletime = DHD_IDLETIME_TICKS;
351module_param(dhd_idletime, int, 0);
352
353/* Use polling */
354uint dhd_poll = FALSE;
355module_param(dhd_poll, uint, 0);
356
357#ifdef CONFIG_CFG80211
358/* Use cfg80211 */
359uint dhd_cfg80211 = TRUE;
360module_param(dhd_cfg80211, uint, 0);
361#endif
362
363/* Use interrupts */
364uint dhd_intr = TRUE;
365module_param(dhd_intr, uint, 0);
366
367/* SDIO Drive Strength (in milliamps) */
368uint dhd_sdiod_drive_strength = 6;
369module_param(dhd_sdiod_drive_strength, uint, 0);
370
371/* Tx/Rx bounds */
372extern uint dhd_txbound;
373extern uint dhd_rxbound;
374module_param(dhd_txbound, uint, 0);
375module_param(dhd_rxbound, uint, 0);
376
377/* Deferred transmits */
378extern uint dhd_deferred_tx;
379module_param(dhd_deferred_tx, uint, 0);
380
381#ifdef SDTEST
382/* Echo packet generator (pkts/s) */
383uint dhd_pktgen = 0;
384module_param(dhd_pktgen, uint, 0);
385
386/* Echo packet len (0 => sawtooth, max 2040) */
387uint dhd_pktgen_len = 0;
388module_param(dhd_pktgen_len, uint, 0);
389#endif
390
391#ifdef CONFIG_CFG80211
392#define FAVORITE_WIFI_CP (!!dhd_cfg80211)
393#define IS_CFG80211_FAVORITE() FAVORITE_WIFI_CP
394#define DBG_CFG80211_GET() ((dhd_cfg80211 & WL_DBG_MASK) >> 1)
395#define NO_FW_REQ() (dhd_cfg80211 & 0x80)
396#endif
397
398/* Version string to report */
399#ifdef DHD_DEBUG
400#define DHD_COMPILED "\nCompiled in " SRCBASE
401#else
402#define DHD_COMPILED
403#endif
404
405static char dhd_version[] = "Dongle Host Driver, version " EPI_VERSION_STR
406#ifdef DHD_DEBUG
407"\nCompiled in " " on " __DATE__ " at " __TIME__
408#endif
409;
410
411#if defined(CONFIG_WIRELESS_EXT)
412struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev);
413#endif /* defined(CONFIG_WIRELESS_EXT) */
414
415static void dhd_dpc(ulong data);
416/* forward decl */
417extern int dhd_wait_pend8021x(struct net_device *dev);
418
419#ifdef TOE
420#ifndef BDC
421#error TOE requires BDC
422#endif /* !BDC */
423static int dhd_toe_get(dhd_info_t *dhd, int idx, uint32 *toe_ol);
424static int dhd_toe_set(dhd_info_t *dhd, int idx, uint32 toe_ol);
425#endif /* TOE */
426
427static int dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
428 wl_event_msg_t *event_ptr, void **data_ptr);
429
430#if defined(CONFIG_PM_SLEEP)
431static int dhd_sleep_pm_callback(struct notifier_block *nfb,
432 unsigned long action, void *ignored)
433{
434 switch (action) {
435 case PM_HIBERNATION_PREPARE:
436 case PM_SUSPEND_PREPARE:
437 dhd_mmc_suspend = TRUE;
438 return NOTIFY_OK;
439 case PM_POST_HIBERNATION:
440 case PM_POST_SUSPEND:
441 dhd_mmc_suspend = FALSE;
442 return NOTIFY_OK;
443 }
444 return 0;
445}
446
447static struct notifier_block dhd_sleep_pm_notifier = {
448 .notifier_call = dhd_sleep_pm_callback,
449 .priority = 0
450};
451
452extern int register_pm_notifier(struct notifier_block *nb);
453extern int unregister_pm_notifier(struct notifier_block *nb);
454#endif /* defined(CONFIG_PM_SLEEP) */
455 /* && defined(DHD_GPL) */
456static void dhd_set_packet_filter(int value, dhd_pub_t *dhd)
457{
458#ifdef PKT_FILTER_SUPPORT
459 DHD_TRACE(("%s: %d\n", __func__, value));
460 /* 1 - Enable packet filter, only allow unicast packet to send up */
461 /* 0 - Disable packet filter */
462 if (dhd_pkt_filter_enable) {
463 int i;
464
465 for (i = 0; i < dhd->pktfilter_count; i++) {
466 dhd_pktfilter_offload_set(dhd, dhd->pktfilter[i]);
467 dhd_pktfilter_offload_enable(dhd, dhd->pktfilter[i],
468 value, dhd_master_mode);
469 }
470 }
471#endif
472}
473
474#if defined(CONFIG_HAS_EARLYSUSPEND)
475static int dhd_set_suspend(int value, dhd_pub_t *dhd)
476{
477 int power_mode = PM_MAX;
478 /* wl_pkt_filter_enable_t enable_parm; */
479 char iovbuf[32];
480 int bcn_li_dtim = 3;
481#ifdef CUSTOMER_HW2
482 uint roamvar = 1;
483#endif /* CUSTOMER_HW2 */
484
485 DHD_TRACE(("%s: enter, value = %d in_suspend=%d\n",
486 __func__, value, dhd->in_suspend));
487
488 if (dhd && dhd->up) {
489 if (value && dhd->in_suspend) {
490
491 /* Kernel suspended */
492 DHD_TRACE(("%s: force extra Suspend setting\n",
493 __func__));
494
495 dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM,
496 (char *)&power_mode,
497 sizeof(power_mode));
498
499 /* Enable packet filter, only allow unicast
500 packet to send up */
501 dhd_set_packet_filter(1, dhd);
502
503 /* if dtim skip setup as default force it
504 * to wake each thrid dtim
505 * for better power saving.
506 * Note that side effect is chance to miss BC/MC
507 * packet
508 */
509 if ((dhd->dtim_skip == 0) || (dhd->dtim_skip == 1))
510 bcn_li_dtim = 3;
511 else
512 bcn_li_dtim = dhd->dtim_skip;
513 bcm_mkiovar("bcn_li_dtim", (char *)&bcn_li_dtim,
514 4, iovbuf, sizeof(iovbuf));
515 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
516 sizeof(iovbuf));
517#ifdef CUSTOMER_HW2
518 /* Disable build-in roaming to allowed \
519 * supplicant to take of romaing
520 */
521 bcm_mkiovar("roam_off", (char *)&roamvar, 4,
522 iovbuf, sizeof(iovbuf));
523 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
524 sizeof(iovbuf));
525#endif /* CUSTOMER_HW2 */
526 } else {
527
528 /* Kernel resumed */
529 DHD_TRACE(("%s: Remove extra suspend setting\n",
530 __func__));
531
532 power_mode = PM_FAST;
533 dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM,
534 (char *)&power_mode,
535 sizeof(power_mode));
536
537 /* disable pkt filter */
538 dhd_set_packet_filter(0, dhd);
539
540 /* restore pre-suspend setting for dtim_skip */
541 bcm_mkiovar("bcn_li_dtim", (char *)&dhd->dtim_skip,
542 4, iovbuf, sizeof(iovbuf));
543
544 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
545 sizeof(iovbuf));
546#ifdef CUSTOMER_HW2
547 roamvar = 0;
548 bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf,
549 sizeof(iovbuf));
550 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
551 sizeof(iovbuf));
552#endif /* CUSTOMER_HW2 */
553 }
554 }
555
556 return 0;
557}
558
559static void dhd_suspend_resume_helper(struct dhd_info *dhd, int val)
560{
561 dhd_pub_t *dhdp = &dhd->pub;
562
563 dhd_os_proto_block(dhdp);
564 /* Set flag when early suspend was called */
565 dhdp->in_suspend = val;
566 if (!dhdp->suspend_disable_flag)
567 dhd_set_suspend(val, dhdp);
568 dhd_os_proto_unblock(dhdp);
569}
570
571static void dhd_early_suspend(struct early_suspend *h)
572{
573 struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
574
575 DHD_TRACE(("%s: enter\n", __func__));
576
577 if (dhd)
578 dhd_suspend_resume_helper(dhd, 1);
579
580}
581
582static void dhd_late_resume(struct early_suspend *h)
583{
584 struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
585
586 DHD_TRACE(("%s: enter\n", __func__));
587
588 if (dhd)
589 dhd_suspend_resume_helper(dhd, 0);
590}
591#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
592
593/*
594 * Generalized timeout mechanism. Uses spin sleep with exponential
595 * back-off until
596 * the sleep time reaches one jiffy, then switches over to task delay. Usage:
597 *
598 * dhd_timeout_start(&tmo, usec);
599 * while (!dhd_timeout_expired(&tmo))
600 * if (poll_something())
601 * break;
602 * if (dhd_timeout_expired(&tmo))
603 * fatal();
604 */
605
606void dhd_timeout_start(dhd_timeout_t *tmo, uint usec)
607{
608 tmo->limit = usec;
609 tmo->increment = 0;
610 tmo->elapsed = 0;
611 tmo->tick = 1000000 / HZ;
612}
613
614int dhd_timeout_expired(dhd_timeout_t *tmo)
615{
616 /* Does nothing the first call */
617 if (tmo->increment == 0) {
618 tmo->increment = 1;
619 return 0;
620 }
621
622 if (tmo->elapsed >= tmo->limit)
623 return 1;
624
625 /* Add the delay that's about to take place */
626 tmo->elapsed += tmo->increment;
627
628 if (tmo->increment < tmo->tick) {
629 OSL_DELAY(tmo->increment);
630 tmo->increment *= 2;
631 if (tmo->increment > tmo->tick)
632 tmo->increment = tmo->tick;
633 } else {
634 wait_queue_head_t delay_wait;
635 DECLARE_WAITQUEUE(wait, current);
636 int pending;
637 init_waitqueue_head(&delay_wait);
638 add_wait_queue(&delay_wait, &wait);
639 set_current_state(TASK_INTERRUPTIBLE);
640 schedule_timeout(1);
641 pending = signal_pending(current);
642 remove_wait_queue(&delay_wait, &wait);
643 set_current_state(TASK_RUNNING);
644 if (pending)
645 return 1; /* Interrupted */
646 }
647
648 return 0;
649}
650
651static int dhd_net2idx(dhd_info_t *dhd, struct net_device *net)
652{
653 int i = 0;
654
655 ASSERT(dhd);
656 while (i < DHD_MAX_IFS) {
657 if (dhd->iflist[i] && (dhd->iflist[i]->net == net))
658 return i;
659 i++;
660 }
661
662 return DHD_BAD_IF;
663}
664
665int dhd_ifname2idx(dhd_info_t *dhd, char *name)
666{
667 int i = DHD_MAX_IFS;
668
669 ASSERT(dhd);
670
671 if (name == NULL || *name == '\0')
672 return 0;
673
674 while (--i > 0)
675 if (dhd->iflist[i]
676 && !strncmp(dhd->iflist[i]->name, name, IFNAMSIZ))
677 break;
678
679 DHD_TRACE(("%s: return idx %d for \"%s\"\n", __func__, i, name));
680
681 return i; /* default - the primary interface */
682}
683
684char *dhd_ifname(dhd_pub_t *dhdp, int ifidx)
685{
686 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
687
688 ASSERT(dhd);
689
690 if (ifidx < 0 || ifidx >= DHD_MAX_IFS) {
691 DHD_ERROR(("%s: ifidx %d out of range\n", __func__, ifidx));
692 return "<if_bad>";
693 }
694
695 if (dhd->iflist[ifidx] == NULL) {
696 DHD_ERROR(("%s: null i/f %d\n", __func__, ifidx));
697 return "<if_null>";
698 }
699
700 if (dhd->iflist[ifidx]->net)
701 return dhd->iflist[ifidx]->net->name;
702
703 return "<if_none>";
704}
705
706static void _dhd_set_multicast_list(dhd_info_t *dhd, int ifidx)
707{
708 struct net_device *dev;
709 struct netdev_hw_addr *ha;
710 uint32 allmulti, cnt;
711
712 wl_ioctl_t ioc;
713 char *buf, *bufp;
714 uint buflen;
715 int ret;
716
717 ASSERT(dhd && dhd->iflist[ifidx]);
718 dev = dhd->iflist[ifidx]->net;
719 cnt = netdev_mc_count(dev);
720
721 /* Determine initial value of allmulti flag */
722 allmulti = (dev->flags & IFF_ALLMULTI) ? TRUE : FALSE;
723
724 /* Send down the multicast list first. */
725
726 buflen = sizeof("mcast_list") + sizeof(cnt) + (cnt * ETHER_ADDR_LEN);
727 if (!(bufp = buf = MALLOC(dhd->pub.osh, buflen))) {
728 DHD_ERROR(("%s: out of memory for mcast_list, cnt %d\n",
729 dhd_ifname(&dhd->pub, ifidx), cnt));
730 return;
731 }
732
733 strcpy(bufp, "mcast_list");
734 bufp += strlen("mcast_list") + 1;
735
736 cnt = htol32(cnt);
737 memcpy(bufp, &cnt, sizeof(cnt));
738 bufp += sizeof(cnt);
739
740 netdev_for_each_mc_addr(ha, dev) {
741 if (!cnt)
742 break;
743 memcpy(bufp, ha->addr, ETHER_ADDR_LEN);
744 bufp += ETHER_ADDR_LEN;
745 cnt--;
746 }
747
748 memset(&ioc, 0, sizeof(ioc));
749 ioc.cmd = WLC_SET_VAR;
750 ioc.buf = buf;
751 ioc.len = buflen;
752 ioc.set = TRUE;
753
754 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
755 if (ret < 0) {
756 DHD_ERROR(("%s: set mcast_list failed, cnt %d\n",
757 dhd_ifname(&dhd->pub, ifidx), cnt));
758 allmulti = cnt ? TRUE : allmulti;
759 }
760
761 MFREE(dhd->pub.osh, buf, buflen);
762
763 /* Now send the allmulti setting. This is based on the setting in the
764 * net_device flags, but might be modified above to be turned on if we
765 * were trying to set some addresses and dongle rejected it...
766 */
767
768 buflen = sizeof("allmulti") + sizeof(allmulti);
769 if (!(buf = MALLOC(dhd->pub.osh, buflen))) {
770 DHD_ERROR(("%s: out of memory for allmulti\n",
771 dhd_ifname(&dhd->pub, ifidx)));
772 return;
773 }
774 allmulti = htol32(allmulti);
775
776 if (!bcm_mkiovar
777 ("allmulti", (void *)&allmulti, sizeof(allmulti), buf, buflen)) {
778 DHD_ERROR(("%s: mkiovar failed for allmulti, datalen %d "
779 "buflen %u\n", dhd_ifname(&dhd->pub, ifidx),
780 (int)sizeof(allmulti), buflen));
781 MFREE(dhd->pub.osh, buf, buflen);
782 return;
783 }
784
785 memset(&ioc, 0, sizeof(ioc));
786 ioc.cmd = WLC_SET_VAR;
787 ioc.buf = buf;
788 ioc.len = buflen;
789 ioc.set = TRUE;
790
791 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
792 if (ret < 0) {
793 DHD_ERROR(("%s: set allmulti %d failed\n",
794 dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
795 }
796
797 MFREE(dhd->pub.osh, buf, buflen);
798
799 /* Finally, pick up the PROMISC flag as well, like the NIC
800 driver does */
801
802 allmulti = (dev->flags & IFF_PROMISC) ? TRUE : FALSE;
803 allmulti = htol32(allmulti);
804
805 memset(&ioc, 0, sizeof(ioc));
806 ioc.cmd = WLC_SET_PROMISC;
807 ioc.buf = &allmulti;
808 ioc.len = sizeof(allmulti);
809 ioc.set = TRUE;
810
811 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
812 if (ret < 0) {
813 DHD_ERROR(("%s: set promisc %d failed\n",
814 dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
815 }
816}
817
818static int
819_dhd_set_mac_address(dhd_info_t *dhd, int ifidx, struct ether_addr *addr)
820{
821 char buf[32];
822 wl_ioctl_t ioc;
823 int ret;
824
825 DHD_TRACE(("%s enter\n", __func__));
826 if (!bcm_mkiovar
827 ("cur_etheraddr", (char *)addr, ETHER_ADDR_LEN, buf, 32)) {
828 DHD_ERROR(("%s: mkiovar failed for cur_etheraddr\n",
829 dhd_ifname(&dhd->pub, ifidx)));
830 return -1;
831 }
832 memset(&ioc, 0, sizeof(ioc));
833 ioc.cmd = WLC_SET_VAR;
834 ioc.buf = buf;
835 ioc.len = 32;
836 ioc.set = TRUE;
837
838 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
839 if (ret < 0) {
840 DHD_ERROR(("%s: set cur_etheraddr failed\n",
841 dhd_ifname(&dhd->pub, ifidx)));
842 } else {
843 memcpy(dhd->iflist[ifidx]->net->dev_addr, addr, ETHER_ADDR_LEN);
844 }
845
846 return ret;
847}
848
849#ifdef SOFTAP
850extern struct net_device *ap_net_dev;
851#endif
852
853static void dhd_op_if(dhd_if_t *ifp)
854{
855 dhd_info_t *dhd;
856 int ret = 0, err = 0;
857
858 ASSERT(ifp && ifp->info && ifp->idx); /* Virtual interfaces only */
859
860 dhd = ifp->info;
861
862 DHD_TRACE(("%s: idx %d, state %d\n", __func__, ifp->idx, ifp->state));
863
864 switch (ifp->state) {
865 case WLC_E_IF_ADD:
866 /*
867 * Delete the existing interface before overwriting it
868 * in case we missed the WLC_E_IF_DEL event.
869 */
870 if (ifp->net != NULL) {
871 DHD_ERROR(("%s: ERROR: netdev:%s already exists, "
872 "try free & unregister\n",
873 __func__, ifp->net->name));
874 netif_stop_queue(ifp->net);
875 unregister_netdev(ifp->net);
876 free_netdev(ifp->net);
877 }
878 /* Allocate etherdev, including space for private structure */
879 if (!(ifp->net = alloc_etherdev(sizeof(dhd)))) {
880 DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
881 ret = -ENOMEM;
882 }
883 if (ret == 0) {
884 strcpy(ifp->net->name, ifp->name);
885 memcpy(netdev_priv(ifp->net), &dhd, sizeof(dhd));
886 if ((err = dhd_net_attach(&dhd->pub, ifp->idx)) != 0) {
887 DHD_ERROR(("%s: dhd_net_attach failed, "
888 "err %d\n",
889 __func__, err));
890 ret = -EOPNOTSUPP;
891 } else {
892#ifdef SOFTAP
893 /* semaphore that the soft AP CODE
894 waits on */
895 extern struct semaphore ap_eth_sema;
896
897 /* save ptr to wl0.1 netdev for use
898 in wl_iw.c */
899 ap_net_dev = ifp->net;
900 /* signal to the SOFTAP 'sleeper' thread,
901 wl0.1 is ready */
902 up(&ap_eth_sema);
903#endif
904 DHD_TRACE(("\n ==== pid:%x, net_device for "
905 "if:%s created ===\n\n",
906 current->pid, ifp->net->name));
907 ifp->state = 0;
908 }
909 }
910 break;
911 case WLC_E_IF_DEL:
912 if (ifp->net != NULL) {
913 DHD_TRACE(("\n%s: got 'WLC_E_IF_DEL' state\n",
914 __func__));
915 netif_stop_queue(ifp->net);
916 unregister_netdev(ifp->net);
917 ret = DHD_DEL_IF; /* Make sure the free_netdev()
918 is called */
919 }
920 break;
921 default:
922 DHD_ERROR(("%s: bad op %d\n", __func__, ifp->state));
923 ASSERT(!ifp->state);
924 break;
925 }
926
927 if (ret < 0) {
928 if (ifp->net)
929 free_netdev(ifp->net);
930
931 dhd->iflist[ifp->idx] = NULL;
932 MFREE(dhd->pub.osh, ifp, sizeof(*ifp));
933#ifdef SOFTAP
934 if (ifp->net == ap_net_dev)
935 ap_net_dev = NULL; /* NULL SOFTAP global
936 wl0.1 as well */
937#endif /* SOFTAP */
938 }
939}
940
941static int _dhd_sysioc_thread(void *data)
942{
943 dhd_info_t *dhd = (dhd_info_t *) data;
944 int i;
945#ifdef SOFTAP
946 bool in_ap = FALSE;
947#endif
948
949 DAEMONIZE("dhd_sysioc");
950
951 while (down_interruptible(&dhd->sysioc_sem) == 0) {
952 for (i = 0; i < DHD_MAX_IFS; i++) {
953 if (dhd->iflist[i]) {
954#ifdef SOFTAP
955 in_ap = (ap_net_dev != NULL);
956#endif /* SOFTAP */
957 if (dhd->iflist[i]->state)
958 dhd_op_if(dhd->iflist[i]);
959#ifdef SOFTAP
960 if (dhd->iflist[i] == NULL) {
961 DHD_TRACE(("\n\n %s: interface %d "
962 "removed!\n", __func__, i));
963 continue;
964 }
965
966 if (in_ap && dhd->set_macaddress) {
967 DHD_TRACE(("attempt to set MAC for %s "
968 "in AP Mode," "blocked. \n",
969 dhd->iflist[i]->net->name));
970 dhd->set_macaddress = FALSE;
971 continue;
972 }
973
974 if (in_ap && dhd->set_multicast) {
975 DHD_TRACE(("attempt to set MULTICAST list for %s" "in AP Mode, blocked. \n",
976 dhd->iflist[i]->net->name));
977 dhd->set_multicast = FALSE;
978 continue;
979 }
980#endif /* SOFTAP */
981 if (dhd->set_multicast) {
982 dhd->set_multicast = FALSE;
983 _dhd_set_multicast_list(dhd, i);
984 }
985 if (dhd->set_macaddress) {
986 dhd->set_macaddress = FALSE;
987 _dhd_set_mac_address(dhd, i,
988 &dhd->macvalue);
989 }
990 }
991 }
992 }
993 complete_and_exit(&dhd->sysioc_exited, 0);
994}
995
996static int dhd_set_mac_address(struct net_device *dev, void *addr)
997{
998 int ret = 0;
999
1000 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
1001 struct sockaddr *sa = (struct sockaddr *)addr;
1002 int ifidx;
1003
1004 ifidx = dhd_net2idx(dhd, dev);
1005 if (ifidx == DHD_BAD_IF)
1006 return -1;
1007
1008 ASSERT(dhd->sysioc_pid >= 0);
1009 memcpy(&dhd->macvalue, sa->sa_data, ETHER_ADDR_LEN);
1010 dhd->set_macaddress = TRUE;
1011 up(&dhd->sysioc_sem);
1012
1013 return ret;
1014}
1015
1016static void dhd_set_multicast_list(struct net_device *dev)
1017{
1018 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
1019 int ifidx;
1020
1021 ifidx = dhd_net2idx(dhd, dev);
1022 if (ifidx == DHD_BAD_IF)
1023 return;
1024
1025 ASSERT(dhd->sysioc_pid >= 0);
1026 dhd->set_multicast = TRUE;
1027 up(&dhd->sysioc_sem);
1028}
1029
1030int dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, void *pktbuf)
1031{
1032 int ret;
1033 dhd_info_t *dhd = (dhd_info_t *) (dhdp->info);
1034
1035 /* Reject if down */
1036 if (!dhdp->up || (dhdp->busstate == DHD_BUS_DOWN))
1037 return -ENODEV;
1038
1039 /* Update multicast statistic */
1040 if (PKTLEN(pktbuf) >= ETHER_ADDR_LEN) {
1041 uint8 *pktdata = (uint8 *) PKTDATA(pktbuf);
1042 struct ether_header *eh = (struct ether_header *)pktdata;
1043
1044 if (ETHER_ISMULTI(eh->ether_dhost))
1045 dhdp->tx_multicast++;
1046 if (ntoh16(eh->ether_type) == ETHER_TYPE_802_1X)
1047 atomic_inc(&dhd->pend_8021x_cnt);
1048 }
1049
1050 /* Look into the packet and update the packet priority */
1051 if ((PKTPRIO(pktbuf) == 0))
1052 pktsetprio(pktbuf, FALSE);
1053
1054 /* If the protocol uses a data header, apply it */
1055 dhd_prot_hdrpush(dhdp, ifidx, pktbuf);
1056
1057 /* Use bus module to send data frame */
1058#ifdef BCMDBUS
1059 ret = dbus_send_pkt(dhdp->dbus, pktbuf, NULL /* pktinfo */);
1060#else
1061 WAKE_LOCK_TIMEOUT(dhdp, WAKE_LOCK_TMOUT, 25);
1062 ret = dhd_bus_txdata(dhdp->bus, pktbuf);
1063#endif /* BCMDBUS */
1064
1065 return ret;
1066}
1067
1068static int dhd_start_xmit(struct sk_buff *skb, struct net_device *net)
1069{
1070 int ret;
1071 void *pktbuf;
1072 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1073 int ifidx;
1074
1075 DHD_TRACE(("%s: Enter\n", __func__));
1076
1077 /* Reject if down */
1078 if (!dhd->pub.up || (dhd->pub.busstate == DHD_BUS_DOWN)) {
1079 DHD_ERROR(("%s: xmit rejected pub.up=%d busstate=%d\n",
1080 __func__, dhd->pub.up, dhd->pub.busstate));
1081 netif_stop_queue(net);
1082 return -ENODEV;
1083 }
1084
1085 ifidx = dhd_net2idx(dhd, net);
1086 if (ifidx == DHD_BAD_IF) {
1087 DHD_ERROR(("%s: bad ifidx %d\n", __func__, ifidx));
1088 netif_stop_queue(net);
1089 return -ENODEV;
1090 }
1091
1092 /* Make sure there's enough room for any header */
1093 if (skb_headroom(skb) < dhd->pub.hdrlen) {
1094 struct sk_buff *skb2;
1095
1096 DHD_INFO(("%s: insufficient headroom\n",
1097 dhd_ifname(&dhd->pub, ifidx)));
1098 dhd->pub.tx_realloc++;
1099 skb2 = skb_realloc_headroom(skb, dhd->pub.hdrlen);
1100 dev_kfree_skb(skb);
1101 if ((skb = skb2) == NULL) {
1102 DHD_ERROR(("%s: skb_realloc_headroom failed\n",
1103 dhd_ifname(&dhd->pub, ifidx)));
1104 ret = -ENOMEM;
1105 goto done;
1106 }
1107 }
1108
1109 /* Convert to packet */
1110 if (!(pktbuf = PKTFRMNATIVE(dhd->pub.osh, skb))) {
1111 DHD_ERROR(("%s: PKTFRMNATIVE failed\n",
1112 dhd_ifname(&dhd->pub, ifidx)));
1113 dev_kfree_skb_any(skb);
1114 ret = -ENOMEM;
1115 goto done;
1116 }
1117
1118 ret = dhd_sendpkt(&dhd->pub, ifidx, pktbuf);
1119
1120done:
1121 if (ret)
1122 dhd->pub.dstats.tx_dropped++;
1123 else
1124 dhd->pub.tx_packets++;
1125
1126 /* Return ok: we always eat the packet */
1127 return 0;
1128}
1129
1130void dhd_txflowcontrol(dhd_pub_t *dhdp, int ifidx, bool state)
1131{
1132 struct net_device *net;
1133 dhd_info_t *dhd = dhdp->info;
1134
1135 DHD_TRACE(("%s: Enter\n", __func__));
1136
1137 dhdp->txoff = state;
1138 ASSERT(dhd && dhd->iflist[ifidx]);
1139 net = dhd->iflist[ifidx]->net;
1140 if (state == ON)
1141 netif_stop_queue(net);
1142 else
1143 netif_wake_queue(net);
1144}
1145
1146void dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, void *pktbuf, int numpkt)
1147{
1148 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
1149 struct sk_buff *skb;
1150 uchar *eth;
1151 uint len;
1152 void *data, *pnext, *save_pktbuf;
1153 int i;
1154 dhd_if_t *ifp;
1155 wl_event_msg_t event;
1156
1157 DHD_TRACE(("%s: Enter\n", __func__));
1158
1159 save_pktbuf = pktbuf;
1160
1161 for (i = 0; pktbuf && i < numpkt; i++, pktbuf = pnext) {
1162
1163 pnext = PKTNEXT(pktbuf);
1164 PKTSETNEXT(pktbuf, NULL);
1165
1166 skb = PKTTONATIVE(dhdp->osh, pktbuf);
1167
1168 /* Get the protocol, maintain skb around eth_type_trans()
1169 * The main reason for this hack is for the limitation of
1170 * Linux 2.4 where 'eth_type_trans' uses the
1171 * 'net->hard_header_len'
1172 * to perform skb_pull inside vs ETH_HLEN. Since to avoid
1173 * coping of the packet coming from the network stack to add
1174 * BDC, Hardware header etc, during network interface
1175 * registration
1176 * we set the 'net->hard_header_len' to ETH_HLEN + extra space
1177 * required
1178 * for BDC, Hardware header etc. and not just the ETH_HLEN
1179 */
1180 eth = skb->data;
1181 len = skb->len;
1182
1183 ifp = dhd->iflist[ifidx];
1184 if (ifp == NULL)
1185 ifp = dhd->iflist[0];
1186
1187 ASSERT(ifp);
1188 skb->dev = ifp->net;
1189 skb->protocol = eth_type_trans(skb, skb->dev);
1190
1191 if (skb->pkt_type == PACKET_MULTICAST)
1192 dhd->pub.rx_multicast++;
1193
1194 skb->data = eth;
1195 skb->len = len;
1196
1197 /* Strip header, count, deliver upward */
1198 skb_pull(skb, ETH_HLEN);
1199
1200 /* Process special event packets and then discard them */
1201 if (ntoh16(skb->protocol) == ETHER_TYPE_BRCM)
1202 dhd_wl_host_event(dhd, &ifidx,
1203 skb->mac_header,
1204 &event, &data);
1205
1206 ASSERT(ifidx < DHD_MAX_IFS && dhd->iflist[ifidx]);
1207 if (dhd->iflist[ifidx] && !dhd->iflist[ifidx]->state)
1208 ifp = dhd->iflist[ifidx];
1209
1210 if (ifp->net)
1211 ifp->net->last_rx = jiffies;
1212
1213 dhdp->dstats.rx_bytes += skb->len;
1214 dhdp->rx_packets++; /* Local count */
1215
1216 if (in_interrupt()) {
1217 netif_rx(skb);
1218 } else {
1219 /* If the receive is not processed inside an ISR,
1220 * the softirqd must be woken explicitly to service
1221 * the NET_RX_SOFTIRQ. In 2.6 kernels, this is handled
1222 * by netif_rx_ni(), but in earlier kernels, we need
1223 * to do it manually.
1224 */
1225 netif_rx_ni(skb);
1226 }
1227 }
1228}
1229
1230void dhd_event(struct dhd_info *dhd, char *evpkt, int evlen, int ifidx)
1231{
1232 /* Linux version has nothing to do */
1233 return;
1234}
1235
1236void dhd_txcomplete(dhd_pub_t *dhdp, void *txp, bool success)
1237{
1238 uint ifidx;
1239 dhd_info_t *dhd = (dhd_info_t *) (dhdp->info);
1240 struct ether_header *eh;
1241 uint16 type;
1242
1243 dhd_prot_hdrpull(dhdp, &ifidx, txp);
1244
1245 eh = (struct ether_header *)PKTDATA(txp);
1246 type = ntoh16(eh->ether_type);
1247
1248 if (type == ETHER_TYPE_802_1X)
1249 atomic_dec(&dhd->pend_8021x_cnt);
1250
1251}
1252
1253static struct net_device_stats *dhd_get_stats(struct net_device *net)
1254{
1255 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1256 dhd_if_t *ifp;
1257 int ifidx;
1258
1259 DHD_TRACE(("%s: Enter\n", __func__));
1260
1261 ifidx = dhd_net2idx(dhd, net);
1262 if (ifidx == DHD_BAD_IF)
1263 return NULL;
1264
1265 ifp = dhd->iflist[ifidx];
1266 ASSERT(dhd && ifp);
1267
1268 if (dhd->pub.up) {
1269 /* Use the protocol to get dongle stats */
1270 dhd_prot_dstats(&dhd->pub);
1271 }
1272
1273 /* Copy dongle stats to net device stats */
1274 ifp->stats.rx_packets = dhd->pub.dstats.rx_packets;
1275 ifp->stats.tx_packets = dhd->pub.dstats.tx_packets;
1276 ifp->stats.rx_bytes = dhd->pub.dstats.rx_bytes;
1277 ifp->stats.tx_bytes = dhd->pub.dstats.tx_bytes;
1278 ifp->stats.rx_errors = dhd->pub.dstats.rx_errors;
1279 ifp->stats.tx_errors = dhd->pub.dstats.tx_errors;
1280 ifp->stats.rx_dropped = dhd->pub.dstats.rx_dropped;
1281 ifp->stats.tx_dropped = dhd->pub.dstats.tx_dropped;
1282 ifp->stats.multicast = dhd->pub.dstats.multicast;
1283
1284 return &ifp->stats;
1285}
1286
1287static int dhd_watchdog_thread(void *data)
1288{
1289 dhd_info_t *dhd = (dhd_info_t *) data;
1290 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_WATCHDOG, "dhd_watchdog_thread");
1291
1292 /* This thread doesn't need any user-level access,
1293 * so get rid of all our resources
1294 */
1295#ifdef DHD_SCHED
1296 if (dhd_watchdog_prio > 0) {
1297 struct sched_param param;
1298 param.sched_priority = (dhd_watchdog_prio < MAX_RT_PRIO) ?
1299 dhd_watchdog_prio : (MAX_RT_PRIO - 1);
1300 setScheduler(current, SCHED_FIFO, &param);
1301 }
1302#endif /* DHD_SCHED */
1303
1304 DAEMONIZE("dhd_watchdog");
1305
1306 /* Run until signal received */
1307 while (1) {
1308 if (down_interruptible(&dhd->watchdog_sem) == 0) {
1309 if (dhd->pub.dongle_reset == FALSE) {
1310 WAKE_LOCK(&dhd->pub, WAKE_LOCK_WATCHDOG);
1311 /* Call the bus module watchdog */
1312 dhd_bus_watchdog(&dhd->pub);
1313 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_WATCHDOG);
1314 }
1315 /* Count the tick for reference */
1316 dhd->pub.tickcnt++;
1317 } else
1318 break;
1319 }
1320
1321 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_WATCHDOG);
1322 complete_and_exit(&dhd->watchdog_exited, 0);
1323}
1324
1325static void dhd_watchdog(ulong data)
1326{
1327 dhd_info_t *dhd = (dhd_info_t *) data;
1328
1329 if (dhd->watchdog_pid >= 0) {
1330 up(&dhd->watchdog_sem);
1331
1332 /* Reschedule the watchdog */
1333 if (dhd->wd_timer_valid) {
1334 mod_timer(&dhd->timer,
1335 jiffies + dhd_watchdog_ms * HZ / 1000);
1336 }
1337 return;
1338 }
1339
1340 /* Call the bus module watchdog */
1341 dhd_bus_watchdog(&dhd->pub);
1342
1343 /* Count the tick for reference */
1344 dhd->pub.tickcnt++;
1345
1346 /* Reschedule the watchdog */
1347 if (dhd->wd_timer_valid)
1348 mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000);
1349}
1350
1351static int dhd_dpc_thread(void *data)
1352{
1353 dhd_info_t *dhd = (dhd_info_t *) data;
1354
1355 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_DPC, "dhd_dpc_thread");
1356 /* This thread doesn't need any user-level access,
1357 * so get rid of all our resources
1358 */
1359#ifdef DHD_SCHED
1360 if (dhd_dpc_prio > 0) {
1361 struct sched_param param;
1362 param.sched_priority =
1363 (dhd_dpc_prio <
1364 MAX_RT_PRIO) ? dhd_dpc_prio : (MAX_RT_PRIO - 1);
1365 setScheduler(current, SCHED_FIFO, &param);
1366 }
1367#endif /* DHD_SCHED */
1368
1369 DAEMONIZE("dhd_dpc");
1370
1371 /* Run until signal received */
1372 while (1) {
1373 if (down_interruptible(&dhd->dpc_sem) == 0) {
1374 /* Call bus dpc unless it indicated down
1375 (then clean stop) */
1376 if (dhd->pub.busstate != DHD_BUS_DOWN) {
1377 WAKE_LOCK(&dhd->pub, WAKE_LOCK_DPC);
1378 if (dhd_bus_dpc(dhd->pub.bus)) {
1379 up(&dhd->dpc_sem);
1380 WAKE_LOCK_TIMEOUT(&dhd->pub,
1381 WAKE_LOCK_TMOUT, 25);
1382 }
1383 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_DPC);
1384 } else {
1385 dhd_bus_stop(dhd->pub.bus, TRUE);
1386 }
1387 } else
1388 break;
1389 }
1390
1391 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_DPC);
1392
1393 complete_and_exit(&dhd->dpc_exited, 0);
1394}
1395
1396static void dhd_dpc(ulong data)
1397{
1398 dhd_info_t *dhd;
1399
1400 dhd = (dhd_info_t *) data;
1401
1402 /* Call bus dpc unless it indicated down (then clean stop) */
1403 if (dhd->pub.busstate != DHD_BUS_DOWN) {
1404 if (dhd_bus_dpc(dhd->pub.bus))
1405 tasklet_schedule(&dhd->tasklet);
1406 } else {
1407 dhd_bus_stop(dhd->pub.bus, TRUE);
1408 }
1409}
1410
1411void dhd_sched_dpc(dhd_pub_t *dhdp)
1412{
1413 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
1414
1415 if (dhd->dpc_pid >= 0) {
1416 up(&dhd->dpc_sem);
1417 return;
1418 }
1419
1420 tasklet_schedule(&dhd->tasklet);
1421}
1422
1423#ifdef TOE
1424/* Retrieve current toe component enables, which are kept
1425 as a bitmap in toe_ol iovar */
1426static int dhd_toe_get(dhd_info_t *dhd, int ifidx, uint32 *toe_ol)
1427{
1428 wl_ioctl_t ioc;
1429 char buf[32];
1430 int ret;
1431
1432 memset(&ioc, 0, sizeof(ioc));
1433
1434 ioc.cmd = WLC_GET_VAR;
1435 ioc.buf = buf;
1436 ioc.len = (uint) sizeof(buf);
1437 ioc.set = FALSE;
1438
1439 strcpy(buf, "toe_ol");
1440 if ((ret =
1441 dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) {
1442 /* Check for older dongle image that doesn't support toe_ol */
1443 if (ret == -EIO) {
1444 DHD_ERROR(("%s: toe not supported by device\n",
1445 dhd_ifname(&dhd->pub, ifidx)));
1446 return -EOPNOTSUPP;
1447 }
1448
1449 DHD_INFO(("%s: could not get toe_ol: ret=%d\n",
1450 dhd_ifname(&dhd->pub, ifidx), ret));
1451 return ret;
1452 }
1453
1454 memcpy(toe_ol, buf, sizeof(uint32));
1455 return 0;
1456}
1457
1458/* Set current toe component enables in toe_ol iovar,
1459 and set toe global enable iovar */
1460static int dhd_toe_set(dhd_info_t *dhd, int ifidx, uint32 toe_ol)
1461{
1462 wl_ioctl_t ioc;
1463 char buf[32];
1464 int toe, ret;
1465
1466 memset(&ioc, 0, sizeof(ioc));
1467
1468 ioc.cmd = WLC_SET_VAR;
1469 ioc.buf = buf;
1470 ioc.len = (uint) sizeof(buf);
1471 ioc.set = TRUE;
1472
1473 /* Set toe_ol as requested */
1474
1475 strcpy(buf, "toe_ol");
1476 memcpy(&buf[sizeof("toe_ol")], &toe_ol, sizeof(uint32));
1477
1478 if ((ret =
1479 dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) {
1480 DHD_ERROR(("%s: could not set toe_ol: ret=%d\n",
1481 dhd_ifname(&dhd->pub, ifidx), ret));
1482 return ret;
1483 }
1484
1485 /* Enable toe globally only if any components are enabled. */
1486
1487 toe = (toe_ol != 0);
1488
1489 strcpy(buf, "toe");
1490 memcpy(&buf[sizeof("toe")], &toe, sizeof(uint32));
1491
1492 if ((ret =
1493 dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len)) < 0) {
1494 DHD_ERROR(("%s: could not set toe: ret=%d\n",
1495 dhd_ifname(&dhd->pub, ifidx), ret));
1496 return ret;
1497 }
1498
1499 return 0;
1500}
1501#endif /* TOE */
1502
1503static void dhd_ethtool_get_drvinfo(struct net_device *net,
1504 struct ethtool_drvinfo *info)
1505{
1506 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1507
1508 sprintf(info->driver, "wl");
1509 sprintf(info->version, "%lu", dhd->pub.drv_version);
1510}
1511
1512struct ethtool_ops dhd_ethtool_ops = {
1513 .get_drvinfo = dhd_ethtool_get_drvinfo
1514};
1515
1516static int dhd_ethtool(dhd_info_t *dhd, void *uaddr)
1517{
1518 struct ethtool_drvinfo info;
1519 char drvname[sizeof(info.driver)];
1520 uint32 cmd;
1521#ifdef TOE
1522 struct ethtool_value edata;
1523 uint32 toe_cmpnt, csum_dir;
1524 int ret;
1525#endif
1526
1527 DHD_TRACE(("%s: Enter\n", __func__));
1528
1529 /* all ethtool calls start with a cmd word */
1530 if (copy_from_user(&cmd, uaddr, sizeof(uint32)))
1531 return -EFAULT;
1532
1533 switch (cmd) {
1534 case ETHTOOL_GDRVINFO:
1535 /* Copy out any request driver name */
1536 if (copy_from_user(&info, uaddr, sizeof(info)))
1537 return -EFAULT;
1538 strncpy(drvname, info.driver, sizeof(info.driver));
1539 drvname[sizeof(info.driver) - 1] = '\0';
1540
1541 /* clear struct for return */
1542 memset(&info, 0, sizeof(info));
1543 info.cmd = cmd;
1544
1545 /* if dhd requested, identify ourselves */
1546 if (strcmp(drvname, "?dhd") == 0) {
1547 sprintf(info.driver, "dhd");
1548 strcpy(info.version, EPI_VERSION_STR);
1549 }
1550
1551 /* otherwise, require dongle to be up */
1552 else if (!dhd->pub.up) {
1553 DHD_ERROR(("%s: dongle is not up\n", __func__));
1554 return -ENODEV;
1555 }
1556
1557 /* finally, report dongle driver type */
1558 else if (dhd->pub.iswl)
1559 sprintf(info.driver, "wl");
1560 else
1561 sprintf(info.driver, "xx");
1562
1563 sprintf(info.version, "%lu", dhd->pub.drv_version);
1564 if (copy_to_user(uaddr, &info, sizeof(info)))
1565 return -EFAULT;
1566 DHD_CTL(("%s: given %*s, returning %s\n", __func__,
1567 (int)sizeof(drvname), drvname, info.driver));
1568 break;
1569
1570#ifdef TOE
1571 /* Get toe offload components from dongle */
1572 case ETHTOOL_GRXCSUM:
1573 case ETHTOOL_GTXCSUM:
1574 if ((ret = dhd_toe_get(dhd, 0, &toe_cmpnt)) < 0)
1575 return ret;
1576
1577 csum_dir =
1578 (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
1579
1580 edata.cmd = cmd;
1581 edata.data = (toe_cmpnt & csum_dir) ? 1 : 0;
1582
1583 if (copy_to_user(uaddr, &edata, sizeof(edata)))
1584 return -EFAULT;
1585 break;
1586
1587 /* Set toe offload components in dongle */
1588 case ETHTOOL_SRXCSUM:
1589 case ETHTOOL_STXCSUM:
1590 if (copy_from_user(&edata, uaddr, sizeof(edata)))
1591 return -EFAULT;
1592
1593 /* Read the current settings, update and write back */
1594 if ((ret = dhd_toe_get(dhd, 0, &toe_cmpnt)) < 0)
1595 return ret;
1596
1597 csum_dir =
1598 (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
1599
1600 if (edata.data != 0)
1601 toe_cmpnt |= csum_dir;
1602 else
1603 toe_cmpnt &= ~csum_dir;
1604
1605 if ((ret = dhd_toe_set(dhd, 0, toe_cmpnt)) < 0)
1606 return ret;
1607
1608 /* If setting TX checksum mode, tell Linux the new mode */
1609 if (cmd == ETHTOOL_STXCSUM) {
1610 if (edata.data)
1611 dhd->iflist[0]->net->features |=
1612 NETIF_F_IP_CSUM;
1613 else
1614 dhd->iflist[0]->net->features &=
1615 ~NETIF_F_IP_CSUM;
1616 }
1617
1618 break;
1619#endif /* TOE */
1620
1621 default:
1622 return -EOPNOTSUPP;
1623 }
1624
1625 return 0;
1626}
1627
1628static int dhd_ioctl_entry(struct net_device *net, struct ifreq *ifr, int cmd)
1629{
1630 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1631 dhd_ioctl_t ioc;
1632 int bcmerror = 0;
1633 int buflen = 0;
1634 void *buf = NULL;
1635 uint driver = 0;
1636 int ifidx;
1637 bool is_set_key_cmd;
1638
1639 ifidx = dhd_net2idx(dhd, net);
1640 DHD_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __func__, ifidx, cmd));
1641
1642 if (ifidx == DHD_BAD_IF)
1643 return -1;
1644
1645#if defined(CONFIG_WIRELESS_EXT)
1646 /* linux wireless extensions */
1647 if ((cmd >= SIOCIWFIRST) && (cmd <= SIOCIWLAST)) {
1648 /* may recurse, do NOT lock */
1649 return wl_iw_ioctl(net, ifr, cmd);
1650 }
1651#endif /* defined(CONFIG_WIRELESS_EXT) */
1652
1653 if (cmd == SIOCETHTOOL)
1654 return dhd_ethtool(dhd, (void *)ifr->ifr_data);
1655
1656 if (cmd != SIOCDEVPRIVATE)
1657 return -EOPNOTSUPP;
1658
1659 memset(&ioc, 0, sizeof(ioc));
1660
1661 /* Copy the ioc control structure part of ioctl request */
1662 if (copy_from_user(&ioc, ifr->ifr_data, sizeof(wl_ioctl_t))) {
1663 bcmerror = -BCME_BADADDR;
1664 goto done;
1665 }
1666
1667 /* Copy out any buffer passed */
1668 if (ioc.buf) {
1669 buflen = MIN(ioc.len, DHD_IOCTL_MAXLEN);
1670 /* optimization for direct ioctl calls from kernel */
1671 /*
1672 if (segment_eq(get_fs(), KERNEL_DS)) {
1673 buf = ioc.buf;
1674 } else {
1675 */
1676 {
1677 if (!(buf = (char *)MALLOC(dhd->pub.osh, buflen))) {
1678 bcmerror = -BCME_NOMEM;
1679 goto done;
1680 }
1681 if (copy_from_user(buf, ioc.buf, buflen)) {
1682 bcmerror = -BCME_BADADDR;
1683 goto done;
1684 }
1685 }
1686 }
1687
1688 /* To differentiate between wl and dhd read 4 more byes */
1689 if ((copy_from_user(&driver, (char *)ifr->ifr_data + sizeof(wl_ioctl_t),
1690 sizeof(uint)) != 0)) {
1691 bcmerror = -BCME_BADADDR;
1692 goto done;
1693 }
1694
1695 if (!capable(CAP_NET_ADMIN)) {
1696 bcmerror = -BCME_EPERM;
1697 goto done;
1698 }
1699
1700 /* check for local dhd ioctl and handle it */
1701 if (driver == DHD_IOCTL_MAGIC) {
1702 bcmerror = dhd_ioctl((void *)&dhd->pub, &ioc, buf, buflen);
1703 if (bcmerror)
1704 dhd->pub.bcmerror = bcmerror;
1705 goto done;
1706 }
1707
1708 /* send to dongle (must be up, and wl) */
1709 if ((dhd->pub.busstate != DHD_BUS_DATA)) {
1710 DHD_ERROR(("%s DONGLE_DOWN,__func__\n", __func__));
1711 bcmerror = BCME_DONGLE_DOWN;
1712 goto done;
1713 }
1714
1715 if (!dhd->pub.iswl) {
1716 bcmerror = BCME_DONGLE_DOWN;
1717 goto done;
1718 }
1719
1720 /* Intercept WLC_SET_KEY IOCTL - serialize M4 send and set key IOCTL to
1721 * prevent M4 encryption.
1722 */
1723 is_set_key_cmd = ((ioc.cmd == WLC_SET_KEY) ||
1724 ((ioc.cmd == WLC_SET_VAR) &&
1725 !(strncmp("wsec_key", ioc.buf, 9))) ||
1726 ((ioc.cmd == WLC_SET_VAR) &&
1727 !(strncmp("bsscfg:wsec_key", ioc.buf, 15))));
1728 if (is_set_key_cmd)
1729 dhd_wait_pend8021x(net);
1730
1731 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_IOCTL, "dhd_ioctl_entry");
1732 WAKE_LOCK(&dhd->pub, WAKE_LOCK_IOCTL);
1733
1734 bcmerror =
1735 dhd_prot_ioctl(&dhd->pub, ifidx, (wl_ioctl_t *)&ioc, buf, buflen);
1736
1737 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_IOCTL);
1738 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_IOCTL);
1739done:
1740 if (!bcmerror && buf && ioc.buf) {
1741 if (copy_to_user(ioc.buf, buf, buflen))
1742 bcmerror = -EFAULT;
1743 }
1744
1745 if (buf)
1746 MFREE(dhd->pub.osh, buf, buflen);
1747
1748 return OSL_ERROR(bcmerror);
1749}
1750
1751static int dhd_stop(struct net_device *net)
1752{
1753#if !defined(IGNORE_ETH0_DOWN)
1754 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1755
1756 DHD_TRACE(("%s: Enter\n", __func__));
1757#ifdef CONFIG_CFG80211
1758 if (IS_CFG80211_FAVORITE()) {
1759 wl_cfg80211_down();
1760 }
1761#endif
1762 if (dhd->pub.up == 0)
1763 return 0;
1764
1765 /* Set state and stop OS transmissions */
1766 dhd->pub.up = 0;
1767 netif_stop_queue(net);
1768#else
1769 DHD_ERROR(("BYPASS %s:due to BRCM compilation : under investigation\n",
1770 __func__));
1771#endif /* !defined(IGNORE_ETH0_DOWN) */
1772
1773 OLD_MOD_DEC_USE_COUNT;
1774 return 0;
1775}
1776
1777static int dhd_open(struct net_device *net)
1778{
1779 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1780#ifdef TOE
1781 uint32 toe_ol;
1782#endif
1783 int ifidx = dhd_net2idx(dhd, net);
1784 int32 ret = 0;
1785
1786 DHD_TRACE(("%s: ifidx %d\n", __func__, ifidx));
1787
1788 if (ifidx == 0) { /* do it only for primary eth0 */
1789
1790 /* try to bring up bus */
1791 if ((ret = dhd_bus_start(&dhd->pub)) != 0) {
1792 DHD_ERROR(("%s: failed with code %d\n", __func__, ret));
1793 return -1;
1794 }
1795 atomic_set(&dhd->pend_8021x_cnt, 0);
1796
1797 memcpy(net->dev_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
1798
1799#ifdef TOE
1800 /* Get current TOE mode from dongle */
1801 if (dhd_toe_get(dhd, ifidx, &toe_ol) >= 0
1802 && (toe_ol & TOE_TX_CSUM_OL) != 0)
1803 dhd->iflist[ifidx]->net->features |= NETIF_F_IP_CSUM;
1804 else
1805 dhd->iflist[ifidx]->net->features &= ~NETIF_F_IP_CSUM;
1806#endif
1807 }
1808 /* Allow transmit calls */
1809 netif_start_queue(net);
1810 dhd->pub.up = 1;
1811#ifdef CONFIG_CFG80211
1812 if (IS_CFG80211_FAVORITE()) {
1813 if (unlikely(wl_cfg80211_up())) {
1814 DHD_ERROR(("%s: failed to bring up cfg80211\n",
1815 __func__));
1816 return -1;
1817 }
1818 }
1819#endif
1820
1821 OLD_MOD_INC_USE_COUNT;
1822 return ret;
1823}
1824
1825osl_t *dhd_osl_attach(void *pdev, uint bustype)
1826{
1827 return osl_attach(pdev, bustype, TRUE);
1828}
1829
1830void dhd_osl_detach(osl_t *osh)
1831{
1832 if (MALLOCED(osh)) {
1833 DHD_ERROR(("%s: MEMORY LEAK %d bytes\n", __func__,
1834 MALLOCED(osh)));
1835 }
1836 osl_detach(osh);
1837}
1838
1839int
1840dhd_add_if(dhd_info_t *dhd, int ifidx, void *handle, char *name,
1841 uint8 *mac_addr, uint32 flags, uint8 bssidx)
1842{
1843 dhd_if_t *ifp;
1844
1845 DHD_TRACE(("%s: idx %d, handle->%p\n", __func__, ifidx, handle));
1846
1847 ASSERT(dhd && (ifidx < DHD_MAX_IFS));
1848
1849 ifp = dhd->iflist[ifidx];
1850 if (!ifp && !(ifp = MALLOC(dhd->pub.osh, sizeof(dhd_if_t)))) {
1851 DHD_ERROR(("%s: OOM - dhd_if_t\n", __func__));
1852 return -ENOMEM;
1853 }
1854
1855 memset(ifp, 0, sizeof(dhd_if_t));
1856 ifp->info = dhd;
1857 dhd->iflist[ifidx] = ifp;
1858 strncpy(ifp->name, name, IFNAMSIZ);
1859 ifp->name[IFNAMSIZ] = '\0';
1860 if (mac_addr != NULL)
1861 memcpy(&ifp->mac_addr, mac_addr, ETHER_ADDR_LEN);
1862
1863 if (handle == NULL) {
1864 ifp->state = WLC_E_IF_ADD;
1865 ifp->idx = ifidx;
1866 ASSERT(dhd->sysioc_pid >= 0);
1867 up(&dhd->sysioc_sem);
1868 } else
1869 ifp->net = (struct net_device *)handle;
1870
1871 return 0;
1872}
1873
1874void dhd_del_if(dhd_info_t *dhd, int ifidx)
1875{
1876 dhd_if_t *ifp;
1877
1878 DHD_TRACE(("%s: idx %d\n", __func__, ifidx));
1879
1880 ASSERT(dhd && ifidx && (ifidx < DHD_MAX_IFS));
1881 ifp = dhd->iflist[ifidx];
1882 if (!ifp) {
1883 DHD_ERROR(("%s: Null interface\n", __func__));
1884 return;
1885 }
1886
1887 ifp->state = WLC_E_IF_DEL;
1888 ifp->idx = ifidx;
1889 ASSERT(dhd->sysioc_pid >= 0);
1890 up(&dhd->sysioc_sem);
1891}
1892
1893dhd_pub_t *dhd_attach(osl_t *osh, struct dhd_bus *bus, uint bus_hdrlen)
1894{
1895 dhd_info_t *dhd = NULL;
1896 struct net_device *net;
1897
1898 DHD_TRACE(("%s: Enter\n", __func__));
1899 /* updates firmware nvram path if it was provided as module
1900 paramters */
1901 if ((firmware_path != NULL) && (firmware_path[0] != '\0'))
1902 strcpy(fw_path, firmware_path);
1903 if ((nvram_path != NULL) && (nvram_path[0] != '\0'))
1904 strcpy(nv_path, nvram_path);
1905
1906 /* Allocate etherdev, including space for private structure */
1907 if (!(net = alloc_etherdev(sizeof(dhd)))) {
1908 DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
1909 goto fail;
1910 }
1911
1912 /* Allocate primary dhd_info */
1913 if (!(dhd = MALLOC(osh, sizeof(dhd_info_t)))) {
1914 DHD_ERROR(("%s: OOM - alloc dhd_info\n", __func__));
1915 goto fail;
1916 }
1917
1918 memset(dhd, 0, sizeof(dhd_info_t));
1919
1920 /*
1921 * Save the dhd_info into the priv
1922 */
1923 memcpy(netdev_priv(net), &dhd, sizeof(dhd));
1924 dhd->pub.osh = osh;
1925
1926 /* Set network interface name if it was provided as module parameter */
1927 if (iface_name[0]) {
1928 int len;
1929 char ch;
1930 strncpy(net->name, iface_name, IFNAMSIZ);
1931 net->name[IFNAMSIZ - 1] = 0;
1932 len = strlen(net->name);
1933 ch = net->name[len - 1];
1934 if ((ch > '9' || ch < '0') && (len < IFNAMSIZ - 2))
1935 strcat(net->name, "%d");
1936 }
1937
1938 if (dhd_add_if(dhd, 0, (void *)net, net->name, NULL, 0, 0) ==
1939 DHD_BAD_IF)
1940 goto fail;
1941
1942 net->netdev_ops = NULL;
1943 init_MUTEX(&dhd->proto_sem);
1944 /* Initialize other structure content */
1945 init_waitqueue_head(&dhd->ioctl_resp_wait);
1946 init_waitqueue_head(&dhd->ctrl_wait);
1947
1948 /* Initialize the spinlocks */
1949 spin_lock_init(&dhd->sdlock);
1950 spin_lock_init(&dhd->txqlock);
1951
1952 /* Link to info module */
1953 dhd->pub.info = dhd;
1954
1955 /* Link to bus module */
1956 dhd->pub.bus = bus;
1957 dhd->pub.hdrlen = bus_hdrlen;
1958
1959 /* Attach and link in the protocol */
1960 if (dhd_prot_attach(&dhd->pub) != 0) {
1961 DHD_ERROR(("dhd_prot_attach failed\n"));
1962 goto fail;
1963 }
1964#if defined(CONFIG_WIRELESS_EXT)
1965 /* Attach and link in the iw */
1966 if (wl_iw_attach(net, (void *)&dhd->pub) != 0) {
1967 DHD_ERROR(("wl_iw_attach failed\n"));
1968 goto fail;
1969 }
1970#endif /* defined(CONFIG_WIRELESS_EXT) */
1971
1972#ifdef CONFIG_CFG80211
1973 /* Attach and link in the cfg80211 */
1974 if (IS_CFG80211_FAVORITE()) {
1975 if (unlikely(wl_cfg80211_attach(net, &dhd->pub))) {
1976 DHD_ERROR(("wl_cfg80211_attach failed\n"));
1977 goto fail;
1978 }
1979 if (!NO_FW_REQ()) {
1980 strcpy(fw_path, wl_cfg80211_get_fwname());
1981 strcpy(nv_path, wl_cfg80211_get_nvramname());
1982 }
1983 wl_cfg80211_dbg_level(DBG_CFG80211_GET());
1984 }
1985#endif
1986
1987 /* Set up the watchdog timer */
1988 init_timer(&dhd->timer);
1989 dhd->timer.data = (ulong) dhd;
1990 dhd->timer.function = dhd_watchdog;
1991
1992 /* Initialize thread based operation and lock */
1993 init_MUTEX(&dhd->sdsem);
1994 if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0))
1995 dhd->threads_only = TRUE;
1996 else
1997 dhd->threads_only = FALSE;
1998
1999 if (dhd_dpc_prio >= 0) {
2000 /* Initialize watchdog thread */
2001 sema_init(&dhd->watchdog_sem, 0);
2002 init_completion(&dhd->watchdog_exited);
2003 dhd->watchdog_pid = kernel_thread(dhd_watchdog_thread, dhd, 0);
2004 } else {
2005 dhd->watchdog_pid = -1;
2006 }
2007
2008 /* Set up the bottom half handler */
2009 if (dhd_dpc_prio >= 0) {
2010 /* Initialize DPC thread */
2011 sema_init(&dhd->dpc_sem, 0);
2012 init_completion(&dhd->dpc_exited);
2013 dhd->dpc_pid = kernel_thread(dhd_dpc_thread, dhd, 0);
2014 } else {
2015 tasklet_init(&dhd->tasklet, dhd_dpc, (ulong) dhd);
2016 dhd->dpc_pid = -1;
2017 }
2018
2019 if (dhd_sysioc) {
2020 sema_init(&dhd->sysioc_sem, 0);
2021 init_completion(&dhd->sysioc_exited);
2022 dhd->sysioc_pid = kernel_thread(_dhd_sysioc_thread, dhd, 0);
2023 } else {
2024 dhd->sysioc_pid = -1;
2025 }
2026
2027 /*
2028 * Save the dhd_info into the priv
2029 */
2030 memcpy(netdev_priv(net), &dhd, sizeof(dhd));
2031
2032#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2033 g_bus = bus;
2034#endif
2035#if defined(CONFIG_PM_SLEEP)
2036 register_pm_notifier(&dhd_sleep_pm_notifier);
2037#endif /* defined(CONFIG_PM_SLEEP) */
2038 /* && defined(DHD_GPL) */
2039 /* Init lock suspend to prevent kernel going to suspend */
2040 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_TMOUT, "dhd_wake_lock");
2041 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_LINK_DOWN_TMOUT,
2042 "dhd_wake_lock_link_dw_event");
2043 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_PNO_FIND_TMOUT,
2044 "dhd_wake_lock_link_pno_find_event");
2045#ifdef CONFIG_HAS_EARLYSUSPEND
2046 dhd->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 20;
2047 dhd->early_suspend.suspend = dhd_early_suspend;
2048 dhd->early_suspend.resume = dhd_late_resume;
2049 register_early_suspend(&dhd->early_suspend);
2050#endif
2051
2052 return &dhd->pub;
2053
2054fail:
2055 if (net)
2056 free_netdev(net);
2057 if (dhd)
2058 dhd_detach(&dhd->pub);
2059
2060 return NULL;
2061}
2062
2063int dhd_bus_start(dhd_pub_t *dhdp)
2064{
2065 int ret = -1;
2066 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
2067#ifdef EMBEDDED_PLATFORM
2068 char iovbuf[WL_EVENTING_MASK_LEN + 12]; /* Room for "event_msgs" +
2069 '\0' + bitvec */
2070#endif /* EMBEDDED_PLATFORM */
2071
2072 ASSERT(dhd);
2073
2074 DHD_TRACE(("%s:\n", __func__));
2075
2076 /* try to download image and nvram to the dongle */
2077 if (dhd->pub.busstate == DHD_BUS_DOWN) {
2078 WAKE_LOCK_INIT(dhdp, WAKE_LOCK_DOWNLOAD, "dhd_bus_start");
2079 WAKE_LOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2080 if (!(dhd_bus_download_firmware(dhd->pub.bus, dhd->pub.osh,
2081 fw_path, nv_path))) {
2082 DHD_ERROR(("%s: dhdsdio_probe_download failed. "
2083 "firmware = %s nvram = %s\n",
2084 __func__, fw_path, nv_path));
2085 WAKE_UNLOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2086 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_DOWNLOAD);
2087 return -1;
2088 }
2089
2090 WAKE_UNLOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2091 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_DOWNLOAD);
2092 }
2093
2094 /* Start the watchdog timer */
2095 dhd->pub.tickcnt = 0;
2096 dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
2097
2098 /* Bring up the bus */
2099 if ((ret = dhd_bus_init(&dhd->pub, TRUE)) != 0) {
2100 DHD_ERROR(("%s, dhd_bus_init failed %d\n", __func__, ret));
2101 return ret;
2102 }
2103#if defined(OOB_INTR_ONLY)
2104 /* Host registration for OOB interrupt */
2105 if (bcmsdh_register_oob_intr(dhdp)) {
2106 del_timer_sync(&dhd->timer);
2107 dhd->wd_timer_valid = FALSE;
2108 DHD_ERROR(("%s Host failed to resgister for OOB\n", __func__));
2109 return -ENODEV;
2110 }
2111
2112 /* Enable oob at firmware */
2113 dhd_enable_oob_intr(dhd->pub.bus, TRUE);
2114#endif /* defined(OOB_INTR_ONLY) */
2115
2116 /* If bus is not ready, can't come up */
2117 if (dhd->pub.busstate != DHD_BUS_DATA) {
2118 del_timer_sync(&dhd->timer);
2119 dhd->wd_timer_valid = FALSE;
2120 DHD_ERROR(("%s failed bus is not ready\n", __func__));
2121 return -ENODEV;
2122 }
2123#ifdef EMBEDDED_PLATFORM
2124 bcm_mkiovar("event_msgs", dhdp->eventmask, WL_EVENTING_MASK_LEN, iovbuf,
2125 sizeof(iovbuf));
2126 dhdcdc_query_ioctl(dhdp, 0, WLC_GET_VAR, iovbuf, sizeof(iovbuf));
2127 bcopy(iovbuf, dhdp->eventmask, WL_EVENTING_MASK_LEN);
2128
2129 setbit(dhdp->eventmask, WLC_E_SET_SSID);
2130 setbit(dhdp->eventmask, WLC_E_PRUNE);
2131 setbit(dhdp->eventmask, WLC_E_AUTH);
2132 setbit(dhdp->eventmask, WLC_E_REASSOC);
2133 setbit(dhdp->eventmask, WLC_E_REASSOC_IND);
2134 setbit(dhdp->eventmask, WLC_E_DEAUTH_IND);
2135 setbit(dhdp->eventmask, WLC_E_DISASSOC_IND);
2136 setbit(dhdp->eventmask, WLC_E_DISASSOC);
2137 setbit(dhdp->eventmask, WLC_E_JOIN);
2138 setbit(dhdp->eventmask, WLC_E_ASSOC_IND);
2139 setbit(dhdp->eventmask, WLC_E_PSK_SUP);
2140 setbit(dhdp->eventmask, WLC_E_LINK);
2141 setbit(dhdp->eventmask, WLC_E_NDIS_LINK);
2142 setbit(dhdp->eventmask, WLC_E_MIC_ERROR);
2143 setbit(dhdp->eventmask, WLC_E_PMKID_CACHE);
2144 setbit(dhdp->eventmask, WLC_E_TXFAIL);
2145 setbit(dhdp->eventmask, WLC_E_JOIN_START);
2146 setbit(dhdp->eventmask, WLC_E_SCAN_COMPLETE);
2147#ifdef PNO_SUPPORT
2148 setbit(dhdp->eventmask, WLC_E_PFN_NET_FOUND);
2149#endif /* PNO_SUPPORT */
2150
2151/* enable dongle roaming event */
2152
2153 dhdp->pktfilter_count = 1;
2154 /* Setup filter to allow only unicast */
2155 dhdp->pktfilter[0] = "100 0 0 0 0x01 0x00";
2156#endif /* EMBEDDED_PLATFORM */
2157
2158 /* Bus is ready, do any protocol initialization */
2159 if ((ret = dhd_prot_init(&dhd->pub)) < 0)
2160 return ret;
2161
2162 return 0;
2163}
2164
2165int
2166dhd_iovar(dhd_pub_t *pub, int ifidx, char *name, char *cmd_buf, uint cmd_len,
2167 int set)
2168{
2169 char buf[strlen(name) + 1 + cmd_len];
2170 int len = sizeof(buf);
2171 wl_ioctl_t ioc;
2172 int ret;
2173
2174 len = bcm_mkiovar(name, cmd_buf, cmd_len, buf, len);
2175
2176 memset(&ioc, 0, sizeof(ioc));
2177
2178 ioc.cmd = set ? WLC_SET_VAR : WLC_GET_VAR;
2179 ioc.buf = buf;
2180 ioc.len = len;
2181 ioc.set = set;
2182
2183 ret = dhd_prot_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);
2184 if (!set && ret >= 0)
2185 memcpy(cmd_buf, buf, cmd_len);
2186
2187 return ret;
2188}
2189
2190static struct net_device_ops dhd_ops_pri = {
2191 .ndo_open = dhd_open,
2192 .ndo_stop = dhd_stop,
2193 .ndo_get_stats = dhd_get_stats,
2194 .ndo_do_ioctl = dhd_ioctl_entry,
2195 .ndo_start_xmit = dhd_start_xmit,
2196 .ndo_set_mac_address = dhd_set_mac_address,
2197 .ndo_set_multicast_list = dhd_set_multicast_list
2198};
2199
2200static struct net_device_ops dhd_ops_virt = {
2201 .ndo_get_stats = dhd_get_stats,
2202 .ndo_do_ioctl = dhd_ioctl_entry,
2203 .ndo_start_xmit = dhd_start_xmit,
2204 .ndo_set_mac_address = dhd_set_mac_address,
2205 .ndo_set_multicast_list = dhd_set_multicast_list
2206};
2207
2208int dhd_net_attach(dhd_pub_t *dhdp, int ifidx)
2209{
2210 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
2211 struct net_device *net;
2212 uint8 temp_addr[ETHER_ADDR_LEN] = {
2213 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33};
2214
2215 DHD_TRACE(("%s: ifidx %d\n", __func__, ifidx));
2216
2217 ASSERT(dhd && dhd->iflist[ifidx]);
2218
2219 net = dhd->iflist[ifidx]->net;
2220 ASSERT(net);
2221
2222 ASSERT(!net->netdev_ops);
2223 net->netdev_ops = &dhd_ops_virt;
2224
2225 net->netdev_ops = &dhd_ops_pri;
2226
2227 /*
2228 * We have to use the primary MAC for virtual interfaces
2229 */
2230 if (ifidx != 0) {
2231 /* for virtual interfaces use the primary MAC */
2232 memcpy(temp_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
2233
2234 }
2235
2236 if (ifidx == 1) {
2237 DHD_TRACE(("%s ACCESS POINT MAC: \n", __func__));
2238 /* ACCESSPOINT INTERFACE CASE */
2239 temp_addr[0] |= 0X02; /* set bit 2 ,
2240 - Locally Administered address */
2241
2242 }
2243 net->hard_header_len = ETH_HLEN + dhd->pub.hdrlen;
2244 net->ethtool_ops = &dhd_ethtool_ops;
2245
2246#if defined(CONFIG_WIRELESS_EXT)
2247#if defined(CONFIG_CFG80211)
2248 if (!IS_CFG80211_FAVORITE()) {
2249#endif
2250#if WIRELESS_EXT < 19
2251 net->get_wireless_stats = dhd_get_wireless_stats;
2252#endif /* WIRELESS_EXT < 19 */
2253#if WIRELESS_EXT > 12
2254 net->wireless_handlers =
2255 (struct iw_handler_def *)&wl_iw_handler_def;
2256#endif /* WIRELESS_EXT > 12 */
2257#if defined(CONFIG_CFG80211)
2258 }
2259#endif
2260#endif /* defined(CONFIG_WIRELESS_EXT) */
2261
2262 dhd->pub.rxsz = net->mtu + net->hard_header_len + dhd->pub.hdrlen;
2263
2264 memcpy(net->dev_addr, temp_addr, ETHER_ADDR_LEN);
2265
2266 if (register_netdev(net) != 0) {
2267 DHD_ERROR(("%s: couldn't register the net device\n",
2268 __func__));
2269 goto fail;
2270 }
2271
2272 printf("%s: Broadcom Dongle Host Driver\n", net->name);
2273
2274 return 0;
2275
2276fail:
2277 net->netdev_ops = NULL;
2278 return BCME_ERROR;
2279}
2280
2281void dhd_bus_detach(dhd_pub_t *dhdp)
2282{
2283 dhd_info_t *dhd;
2284
2285 DHD_TRACE(("%s: Enter\n", __func__));
2286
2287 if (dhdp) {
2288 dhd = (dhd_info_t *) dhdp->info;
2289 if (dhd) {
2290 /* Stop the protocol module */
2291 dhd_prot_stop(&dhd->pub);
2292
2293 /* Stop the bus module */
2294 dhd_bus_stop(dhd->pub.bus, TRUE);
2295#if defined(OOB_INTR_ONLY)
2296 bcmsdh_unregister_oob_intr();
2297#endif /* defined(OOB_INTR_ONLY) */
2298
2299 /* Clear the watchdog timer */
2300 del_timer_sync(&dhd->timer);
2301 dhd->wd_timer_valid = FALSE;
2302 }
2303 }
2304}
2305
2306void dhd_detach(dhd_pub_t *dhdp)
2307{
2308 dhd_info_t *dhd;
2309
2310 DHD_TRACE(("%s: Enter\n", __func__));
2311
2312 if (dhdp) {
2313 dhd = (dhd_info_t *) dhdp->info;
2314 if (dhd) {
2315 dhd_if_t *ifp;
2316 int i;
2317
2318#if defined(CONFIG_HAS_EARLYSUSPEND)
2319 if (dhd->early_suspend.suspend)
2320 unregister_early_suspend(&dhd->early_suspend);
2321#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
2322
2323 for (i = 1; i < DHD_MAX_IFS; i++)
2324 if (dhd->iflist[i])
2325 dhd_del_if(dhd, i);
2326
2327 ifp = dhd->iflist[0];
2328 ASSERT(ifp);
2329 if (ifp->net->netdev_ops == &dhd_ops_pri) {
2330 dhd_stop(ifp->net);
2331 unregister_netdev(ifp->net);
2332 }
2333
2334 if (dhd->watchdog_pid >= 0) {
2335 KILL_PROC(dhd->watchdog_pid, SIGTERM);
2336 wait_for_completion(&dhd->watchdog_exited);
2337 }
2338
2339 if (dhd->dpc_pid >= 0) {
2340 KILL_PROC(dhd->dpc_pid, SIGTERM);
2341 wait_for_completion(&dhd->dpc_exited);
2342 } else
2343 tasklet_kill(&dhd->tasklet);
2344
2345 if (dhd->sysioc_pid >= 0) {
2346 KILL_PROC(dhd->sysioc_pid, SIGTERM);
2347 wait_for_completion(&dhd->sysioc_exited);
2348 }
2349
2350 dhd_bus_detach(dhdp);
2351
2352 if (dhdp->prot)
2353 dhd_prot_detach(dhdp);
2354
2355#if defined(CONFIG_WIRELESS_EXT)
2356 wl_iw_detach();
2357#endif /* (CONFIG_WIRELESS_EXT) */
2358
2359#ifdef CONFIG_CFG80211
2360 if (IS_CFG80211_FAVORITE())
2361 wl_cfg80211_detach();
2362#endif /* CONFIG_CFG80211 */
2363
2364#if defined(CONFIG_PM_SLEEP)
2365 unregister_pm_notifier(&dhd_sleep_pm_notifier);
2366#endif /* defined(CONFIG_PM_SLEEP) */
2367 /* && defined(DHD_GPL) */
2368 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_TMOUT);
2369 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_LINK_DOWN_TMOUT);
2370 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_PNO_FIND_TMOUT);
2371 free_netdev(ifp->net);
2372 MFREE(dhd->pub.osh, ifp, sizeof(*ifp));
2373 MFREE(dhd->pub.osh, dhd, sizeof(*dhd));
2374 }
2375 }
2376}
2377
2378static void __exit dhd_module_cleanup(void)
2379{
2380 DHD_TRACE(("%s: Enter\n", __func__));
2381
2382 dhd_bus_unregister();
2383#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2384 wifi_del_dev();
2385#endif
2386 /* Call customer gpio to turn off power with WL_REG_ON signal */
2387 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
2388}
2389
2390static int __init dhd_module_init(void)
2391{
2392 int error;
2393
2394 DHD_TRACE(("%s: Enter\n", __func__));
2395
2396 /* Sanity check on the module parameters */
2397 do {
2398 /* Both watchdog and DPC as tasklets are ok */
2399 if ((dhd_watchdog_prio < 0) && (dhd_dpc_prio < 0))
2400 break;
2401
2402 /* If both watchdog and DPC are threads, TX must be deferred */
2403 if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0)
2404 && dhd_deferred_tx)
2405 break;
2406
2407 DHD_ERROR(("Invalid module parameters.\n"));
2408 return -EINVAL;
2409 } while (0);
2410 /* Call customer gpio to turn on power with WL_REG_ON signal */
2411 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_ON);
2412
2413#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2414 sema_init(&wifi_control_sem, 0);
2415
2416 error = wifi_add_dev();
2417 if (error) {
2418 DHD_ERROR(("%s: platform_driver_register failed\n", __func__));
2419 goto faild;
2420 }
2421
2422 /* Waiting callback after platform_driver_register is done or
2423 exit with error */
2424 if (down_timeout(&wifi_control_sem, msecs_to_jiffies(1000)) != 0) {
2425 printk(KERN_ERR "%s: platform_driver_register timeout\n",
2426 __func__);
2427 /* remove device */
2428 wifi_del_dev();
2429 goto faild;
2430 }
2431#endif /* #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
2432
2433 error = dhd_bus_register();
2434
2435 if (!error)
2436 printf("\n%s\n", dhd_version);
2437 else {
2438 DHD_ERROR(("%s: sdio_register_driver failed\n", __func__));
2439 goto faild;
2440 }
2441 return error;
2442
2443faild:
2444 /* turn off power and exit */
2445 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
2446 return -EINVAL;
2447}
2448
2449module_init(dhd_module_init);
2450module_exit(dhd_module_cleanup);
2451
2452/*
2453 * OS specific functions required to implement DHD driver in OS independent way
2454 */
2455int dhd_os_proto_block(dhd_pub_t *pub)
2456{
2457 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2458
2459 if (dhd) {
2460 down(&dhd->proto_sem);
2461 return 1;
2462 }
2463 return 0;
2464}
2465
2466int dhd_os_proto_unblock(dhd_pub_t *pub)
2467{
2468 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2469
2470 if (dhd) {
2471 up(&dhd->proto_sem);
2472 return 1;
2473 }
2474
2475 return 0;
2476}
2477
2478unsigned int dhd_os_get_ioctl_resp_timeout(void)
2479{
2480 return (unsigned int)dhd_ioctl_timeout_msec;
2481}
2482
2483void dhd_os_set_ioctl_resp_timeout(unsigned int timeout_msec)
2484{
2485 dhd_ioctl_timeout_msec = (int)timeout_msec;
2486}
2487
2488int dhd_os_ioctl_resp_wait(dhd_pub_t *pub, uint *condition, bool *pending)
2489{
2490 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2491 DECLARE_WAITQUEUE(wait, current);
2492 int timeout = dhd_ioctl_timeout_msec;
2493
2494 /* Convert timeout in millsecond to jiffies */
2495 timeout = timeout * HZ / 1000;
2496
2497 /* Wait until control frame is available */
2498 add_wait_queue(&dhd->ioctl_resp_wait, &wait);
2499 set_current_state(TASK_INTERRUPTIBLE);
2500
2501 while (!(*condition) && (!signal_pending(current) && timeout))
2502 timeout = schedule_timeout(timeout);
2503
2504 if (signal_pending(current))
2505 *pending = TRUE;
2506
2507 set_current_state(TASK_RUNNING);
2508 remove_wait_queue(&dhd->ioctl_resp_wait, &wait);
2509
2510 return timeout;
2511}
2512
2513int dhd_os_ioctl_resp_wake(dhd_pub_t *pub)
2514{
2515 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2516
2517 if (waitqueue_active(&dhd->ioctl_resp_wait))
2518 wake_up_interruptible(&dhd->ioctl_resp_wait);
2519
2520 return 0;
2521}
2522
2523void dhd_os_wd_timer(void *bus, uint wdtick)
2524{
2525 dhd_pub_t *pub = bus;
2526 static uint save_dhd_watchdog_ms = 0;
2527 dhd_info_t *dhd = (dhd_info_t *) pub->info;
2528
2529 /* don't start the wd until fw is loaded */
2530 if (pub->busstate == DHD_BUS_DOWN)
2531 return;
2532
2533 /* Totally stop the timer */
2534 if (!wdtick && dhd->wd_timer_valid == TRUE) {
2535 del_timer_sync(&dhd->timer);
2536 dhd->wd_timer_valid = FALSE;
2537 save_dhd_watchdog_ms = wdtick;
2538 return;
2539 }
2540
2541 if (wdtick) {
2542 dhd_watchdog_ms = (uint) wdtick;
2543
2544 if (save_dhd_watchdog_ms != dhd_watchdog_ms) {
2545
2546 if (dhd->wd_timer_valid == TRUE)
2547 /* Stop timer and restart at new value */
2548 del_timer_sync(&dhd->timer);
2549
2550 /* Create timer again when watchdog period is
2551 dynamically changed or in the first instance
2552 */
2553 dhd->timer.expires =
2554 jiffies + dhd_watchdog_ms * HZ / 1000;
2555 add_timer(&dhd->timer);
2556
2557 } else {
2558 /* Re arm the timer, at last watchdog period */
2559 mod_timer(&dhd->timer,
2560 jiffies + dhd_watchdog_ms * HZ / 1000);
2561 }
2562
2563 dhd->wd_timer_valid = TRUE;
2564 save_dhd_watchdog_ms = wdtick;
2565 }
2566}
2567
2568void *dhd_os_open_image(char *filename)
2569{
2570 struct file *fp;
2571
2572#ifdef CONFIG_CFG80211
2573 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2574 return wl_cfg80211_request_fw(filename);
2575#endif
2576
2577 fp = filp_open(filename, O_RDONLY, 0);
2578 /*
2579 * 2.6.11 (FC4) supports filp_open() but later revs don't?
2580 * Alternative:
2581 * fp = open_namei(AT_FDCWD, filename, O_RD, 0);
2582 * ???
2583 */
2584 if (IS_ERR(fp))
2585 fp = NULL;
2586
2587 return fp;
2588}
2589
2590int dhd_os_get_image_block(char *buf, int len, void *image)
2591{
2592 struct file *fp = (struct file *)image;
2593 int rdlen;
2594
2595#ifdef CONFIG_CFG80211
2596 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2597 return wl_cfg80211_read_fw(buf, len);
2598#endif
2599
2600 if (!image)
2601 return 0;
2602
2603 rdlen = kernel_read(fp, fp->f_pos, buf, len);
2604 if (rdlen > 0)
2605 fp->f_pos += rdlen;
2606
2607 return rdlen;
2608}
2609
2610void dhd_os_close_image(void *image)
2611{
2612#ifdef CONFIG_CFG80211
2613 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2614 return wl_cfg80211_release_fw();
2615#endif
2616 if (image)
2617 filp_close((struct file *)image, NULL);
2618}
2619
2620void dhd_os_sdlock(dhd_pub_t *pub)
2621{
2622 dhd_info_t *dhd;
2623
2624 dhd = (dhd_info_t *) (pub->info);
2625
2626 if (dhd->threads_only)
2627 down(&dhd->sdsem);
2628 else
2629 spin_lock_bh(&dhd->sdlock);
2630}
2631
2632void dhd_os_sdunlock(dhd_pub_t *pub)
2633{
2634 dhd_info_t *dhd;
2635
2636 dhd = (dhd_info_t *) (pub->info);
2637
2638 if (dhd->threads_only)
2639 up(&dhd->sdsem);
2640 else
2641 spin_unlock_bh(&dhd->sdlock);
2642}
2643
2644void dhd_os_sdlock_txq(dhd_pub_t *pub)
2645{
2646 dhd_info_t *dhd;
2647
2648 dhd = (dhd_info_t *) (pub->info);
2649 spin_lock_bh(&dhd->txqlock);
2650}
2651
2652void dhd_os_sdunlock_txq(dhd_pub_t *pub)
2653{
2654 dhd_info_t *dhd;
2655
2656 dhd = (dhd_info_t *) (pub->info);
2657 spin_unlock_bh(&dhd->txqlock);
2658}
2659
2660void dhd_os_sdlock_rxq(dhd_pub_t *pub)
2661{
2662}
2663
2664void dhd_os_sdunlock_rxq(dhd_pub_t *pub)
2665{
2666}
2667
2668void dhd_os_sdtxlock(dhd_pub_t *pub)
2669{
2670 dhd_os_sdlock(pub);
2671}
2672
2673void dhd_os_sdtxunlock(dhd_pub_t *pub)
2674{
2675 dhd_os_sdunlock(pub);
2676}
2677
2678#ifdef DHD_USE_STATIC_BUF
2679void *dhd_os_prealloc(int section, unsigned long size)
2680{
2681#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2682 void *alloc_ptr = NULL;
2683 if (wifi_control_data && wifi_control_data->mem_prealloc) {
2684 alloc_ptr = wifi_control_data->mem_prealloc(section, size);
2685 if (alloc_ptr) {
2686 DHD_INFO(("success alloc section %d\n", section));
2687 bzero(alloc_ptr, size);
2688 return alloc_ptr;
2689 }
2690 }
2691
2692 DHD_ERROR(("can't alloc section %d\n", section));
2693 return 0;
2694#else
2695 return MALLOC(0, size);
2696#endif /* #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
2697}
2698#endif /* DHD_USE_STATIC_BUF */
2699#if defined(CONFIG_WIRELESS_EXT)
2700struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev)
2701{
2702 int res = 0;
2703 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2704
2705 res = wl_iw_get_wireless_stats(dev, &dhd->iw.wstats);
2706
2707 if (res == 0)
2708 return &dhd->iw.wstats;
2709 else
2710 return NULL;
2711}
2712#endif /* defined(CONFIG_WIRELESS_EXT) */
2713
2714static int
2715dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
2716 wl_event_msg_t *event, void **data)
2717{
2718 int bcmerror = 0;
2719
2720 ASSERT(dhd != NULL);
2721
2722 bcmerror = wl_host_event(dhd, ifidx, pktdata, event, data);
2723 if (bcmerror != BCME_OK)
2724 return bcmerror;
2725
2726#if defined(CONFIG_WIRELESS_EXT)
2727#if defined(CONFIG_CFG80211)
2728 if (!IS_CFG80211_FAVORITE()) {
2729#endif
2730 if ((dhd->iflist[*ifidx] == NULL)
2731 || (dhd->iflist[*ifidx]->net == NULL)) {
2732 DHD_ERROR(("%s Exit null pointer\n", __func__));
2733 return bcmerror;
2734 }
2735
2736 if (dhd->iflist[*ifidx]->net)
2737 wl_iw_event(dhd->iflist[*ifidx]->net, event, *data);
2738#if defined(CONFIG_CFG80211)
2739 }
2740#endif
2741#endif /* defined(CONFIG_WIRELESS_EXT) */
2742
2743#ifdef CONFIG_CFG80211
2744 if (IS_CFG80211_FAVORITE()) {
2745 ASSERT(dhd->iflist[*ifidx] != NULL);
2746 ASSERT(dhd->iflist[*ifidx]->net != NULL);
2747 if (dhd->iflist[*ifidx]->net)
2748 wl_cfg80211_event(dhd->iflist[*ifidx]->net, event,
2749 *data);
2750 }
2751#endif
2752
2753 return bcmerror;
2754}
2755
2756/* send up locally generated event */
2757void dhd_sendup_event(dhd_pub_t *dhdp, wl_event_msg_t *event, void *data)
2758{
2759 switch (ntoh32(event->event_type)) {
2760 default:
2761 break;
2762 }
2763}
2764
2765void dhd_wait_for_event(dhd_pub_t *dhd, bool *lockvar)
2766{
2767 struct dhd_info *dhdinfo = dhd->info;
2768 dhd_os_sdunlock(dhd);
2769 wait_event_interruptible_timeout(dhdinfo->ctrl_wait,
2770 (*lockvar == FALSE), HZ * 2);
2771 dhd_os_sdlock(dhd);
2772 return;
2773}
2774
2775void dhd_wait_event_wakeup(dhd_pub_t *dhd)
2776{
2777 struct dhd_info *dhdinfo = dhd->info;
2778 if (waitqueue_active(&dhdinfo->ctrl_wait))
2779 wake_up_interruptible(&dhdinfo->ctrl_wait);
2780 return;
2781}
2782
2783int dhd_dev_reset(struct net_device *dev, uint8 flag)
2784{
2785 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2786
2787 /* Turning off watchdog */
2788 if (flag)
2789 dhd_os_wd_timer(&dhd->pub, 0);
2790
2791 dhd_bus_devreset(&dhd->pub, flag);
2792
2793 /* Turning on watchdog back */
2794 if (!flag)
2795 dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
2796 DHD_ERROR(("%s: WLAN OFF DONE\n", __func__));
2797
2798 return 1;
2799}
2800
2801int net_os_set_suspend_disable(struct net_device *dev, int val)
2802{
2803 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2804 int ret = 0;
2805
2806 if (dhd) {
2807 ret = dhd->pub.suspend_disable_flag;
2808 dhd->pub.suspend_disable_flag = val;
2809 }
2810 return ret;
2811}
2812
2813int net_os_set_suspend(struct net_device *dev, int val)
2814{
2815 int ret = 0;
2816#if defined(CONFIG_HAS_EARLYSUSPEND)
2817 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2818
2819 if (dhd) {
2820 dhd_os_proto_block(&dhd->pub);
2821 ret = dhd_set_suspend(val, &dhd->pub);
2822 dhd_os_proto_unblock(&dhd->pub);
2823 }
2824#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
2825 return ret;
2826}
2827
2828int net_os_set_dtim_skip(struct net_device *dev, int val)
2829{
2830 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2831
2832 if (dhd)
2833 dhd->pub.dtim_skip = val;
2834
2835 return 0;
2836}
2837
2838int net_os_set_packet_filter(struct net_device *dev, int val)
2839{
2840 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2841 int ret = 0;
2842
2843 /* Packet filtering is set only if we still in early-suspend and
2844 * we need either to turn it ON or turn it OFF
2845 * We can always turn it OFF in case of early-suspend, but we turn it
2846 * back ON only if suspend_disable_flag was not set
2847 */
2848 if (dhd && dhd->pub.up) {
2849 dhd_os_proto_block(&dhd->pub);
2850 if (dhd->pub.in_suspend) {
2851 if (!val || (val && !dhd->pub.suspend_disable_flag))
2852 dhd_set_packet_filter(val, &dhd->pub);
2853 }
2854 dhd_os_proto_unblock(&dhd->pub);
2855 }
2856 return ret;
2857}
2858
2859void dhd_dev_init_ioctl(struct net_device *dev)
2860{
2861 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2862
2863 dhd_preinit_ioctls(&dhd->pub);
2864}
2865
2866#ifdef PNO_SUPPORT
2867/* Linux wrapper to call common dhd_pno_clean */
2868int dhd_dev_pno_reset(struct net_device *dev)
2869{
2870 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2871
2872 return dhd_pno_clean(&dhd->pub);
2873}
2874
2875/* Linux wrapper to call common dhd_pno_enable */
2876int dhd_dev_pno_enable(struct net_device *dev, int pfn_enabled)
2877{
2878 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2879
2880 return dhd_pno_enable(&dhd->pub, pfn_enabled);
2881}
2882
2883/* Linux wrapper to call common dhd_pno_set */
2884int
2885dhd_dev_pno_set(struct net_device *dev, wlc_ssid_t *ssids_local, int nssid,
2886 uchar scan_fr)
2887{
2888 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2889
2890 return dhd_pno_set(&dhd->pub, ssids_local, nssid, scan_fr);
2891}
2892
2893/* Linux wrapper to get pno status */
2894int dhd_dev_get_pno_status(struct net_device *dev)
2895{
2896 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2897
2898 return dhd_pno_get_status(&dhd->pub);
2899}
2900
2901#endif /* PNO_SUPPORT */
2902
2903static int dhd_get_pend_8021x_cnt(dhd_info_t *dhd)
2904{
2905 return atomic_read(&dhd->pend_8021x_cnt);
2906}
2907
2908#define MAX_WAIT_FOR_8021X_TX 10
2909
2910int dhd_wait_pend8021x(struct net_device *dev)
2911{
2912 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2913 int timeout = 10 * HZ / 1000;
2914 int ntimes = MAX_WAIT_FOR_8021X_TX;
2915 int pend = dhd_get_pend_8021x_cnt(dhd);
2916
2917 while (ntimes && pend) {
2918 if (pend) {
2919 set_current_state(TASK_INTERRUPTIBLE);
2920 schedule_timeout(timeout);
2921 set_current_state(TASK_RUNNING);
2922 ntimes--;
2923 }
2924 pend = dhd_get_pend_8021x_cnt(dhd);
2925 }
2926 return pend;
2927}
2928
2929#ifdef DHD_DEBUG
2930int write_to_file(dhd_pub_t *dhd, uint8 *buf, int size)
2931{
2932 int ret = 0;
2933 struct file *fp;
2934 mm_segment_t old_fs;
2935 loff_t pos = 0;
2936
2937 /* change to KERNEL_DS address limit */
2938 old_fs = get_fs();
2939 set_fs(KERNEL_DS);
2940
2941 /* open file to write */
2942 fp = filp_open("/tmp/mem_dump", O_WRONLY | O_CREAT, 0640);
2943 if (!fp) {
2944 printf("%s: open file error\n", __func__);
2945 ret = -1;
2946 goto exit;
2947 }
2948
2949 /* Write buf to file */
2950 fp->f_op->write(fp, buf, size, &pos);
2951
2952exit:
2953 /* free buf before return */
2954 MFREE(dhd->osh, buf, size);
2955 /* close file before return */
2956 if (fp)
2957 filp_close(fp, current->files);
2958 /* restore previous address limit */
2959 set_fs(old_fs);
2960
2961 return ret;
2962}
2963#endif /* DHD_DEBUG */
kernel source for telekom puls (alcatel/mediatek)