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staging: brcm80211: fix various checkpatch spacing errors.
[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>
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;
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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
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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;
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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;
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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;
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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
340#define DAEMONIZE(a) daemonize(a); \
341 allow_signal(SIGKILL); \
342 allow_signal(SIGTERM);
343
344#define BLOCKABLE() (!in_atomic())
345
346/* The following are specific to the SDIO dongle */
347
348/* IOCTL response timeout */
349int dhd_ioctl_timeout_msec = IOCTL_RESP_TIMEOUT;
350
351/* Idle timeout for backplane clock */
352int dhd_idletime = DHD_IDLETIME_TICKS;
353module_param(dhd_idletime, int, 0);
354
355/* Use polling */
356uint dhd_poll = FALSE;
357module_param(dhd_poll, uint, 0);
358
359#ifdef CONFIG_CFG80211
360/* Use cfg80211 */
361uint dhd_cfg80211 = TRUE;
362module_param(dhd_cfg80211, uint, 0);
363#endif
364
365/* Use interrupts */
366uint dhd_intr = TRUE;
367module_param(dhd_intr, uint, 0);
368
369/* SDIO Drive Strength (in milliamps) */
370uint dhd_sdiod_drive_strength = 6;
371module_param(dhd_sdiod_drive_strength, uint, 0);
372
373/* Tx/Rx bounds */
374extern uint dhd_txbound;
375extern uint dhd_rxbound;
376module_param(dhd_txbound, uint, 0);
377module_param(dhd_rxbound, uint, 0);
378
379/* Deferred transmits */
380extern uint dhd_deferred_tx;
381module_param(dhd_deferred_tx, uint, 0);
382
383#ifdef SDTEST
384/* Echo packet generator (pkts/s) */
6998d337 385uint dhd_pktgen;
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HP		 386module_param(dhd_pktgen, uint, 0);
387
388/* Echo packet len (0 => sawtooth, max 2040) */
6998d337 389uint dhd_pktgen_len;
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HP		 390module_param(dhd_pktgen_len, uint, 0);
391#endif
392
393#ifdef CONFIG_CFG80211
394#define FAVORITE_WIFI_CP (!!dhd_cfg80211)
395#define IS_CFG80211_FAVORITE() FAVORITE_WIFI_CP
396#define DBG_CFG80211_GET() ((dhd_cfg80211 & WL_DBG_MASK) >> 1)
397#define NO_FW_REQ() (dhd_cfg80211 & 0x80)
398#endif
399
400/* Version string to report */
401#ifdef DHD_DEBUG
402#define DHD_COMPILED "\nCompiled in " SRCBASE
403#else
404#define DHD_COMPILED
405#endif
406
407static char dhd_version[] = "Dongle Host Driver, version " EPI_VERSION_STR
408#ifdef DHD_DEBUG
409"\nCompiled in " " on " __DATE__ " at " __TIME__
410#endif
411;
412
413#if defined(CONFIG_WIRELESS_EXT)
414struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev);
415#endif /* defined(CONFIG_WIRELESS_EXT) */
416
3deea904 417static void dhd_dpc(unsigned long data);
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HP		 418/* forward decl */
419extern int dhd_wait_pend8021x(struct net_device *dev);
420
421#ifdef TOE
422#ifndef BDC
423#error TOE requires BDC
424#endif /* !BDC */
425static int dhd_toe_get(dhd_info_t *dhd, int idx, uint32 *toe_ol);
426static int dhd_toe_set(dhd_info_t *dhd, int idx, uint32 toe_ol);
427#endif /* TOE */
428
429static int dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
430 wl_event_msg_t *event_ptr, void **data_ptr);
431
432#if defined(CONFIG_PM_SLEEP)
433static int dhd_sleep_pm_callback(struct notifier_block *nfb,
434 unsigned long action, void *ignored)
435{
436 switch (action) {
437 case PM_HIBERNATION_PREPARE:
438 case PM_SUSPEND_PREPARE:
439 dhd_mmc_suspend = TRUE;
440 return NOTIFY_OK;
441 case PM_POST_HIBERNATION:
442 case PM_POST_SUSPEND:
443 dhd_mmc_suspend = FALSE;
444 return NOTIFY_OK;
445 }
446 return 0;
447}
448
449static struct notifier_block dhd_sleep_pm_notifier = {
450 .notifier_call = dhd_sleep_pm_callback,
451 .priority = 0
452};
453
454extern int register_pm_notifier(struct notifier_block *nb);
455extern int unregister_pm_notifier(struct notifier_block *nb);
456#endif /* defined(CONFIG_PM_SLEEP) */
457 /* && defined(DHD_GPL) */
458static void dhd_set_packet_filter(int value, dhd_pub_t *dhd)
459{
460#ifdef PKT_FILTER_SUPPORT
461 DHD_TRACE(("%s: %d\n", __func__, value));
462 /* 1 - Enable packet filter, only allow unicast packet to send up */
463 /* 0 - Disable packet filter */
464 if (dhd_pkt_filter_enable) {
465 int i;
466
467 for (i = 0; i < dhd->pktfilter_count; i++) {
468 dhd_pktfilter_offload_set(dhd, dhd->pktfilter[i]);
469 dhd_pktfilter_offload_enable(dhd, dhd->pktfilter[i],
470 value, dhd_master_mode);
471 }
472 }
473#endif
474}
475
476#if defined(CONFIG_HAS_EARLYSUSPEND)
477static int dhd_set_suspend(int value, dhd_pub_t *dhd)
478{
479 int power_mode = PM_MAX;
480 /* wl_pkt_filter_enable_t enable_parm; */
481 char iovbuf[32];
482 int bcn_li_dtim = 3;
483#ifdef CUSTOMER_HW2
484 uint roamvar = 1;
485#endif /* CUSTOMER_HW2 */
486
487 DHD_TRACE(("%s: enter, value = %d in_suspend=%d\n",
488 __func__, value, dhd->in_suspend));
489
490 if (dhd && dhd->up) {
491 if (value && dhd->in_suspend) {
492
493 /* Kernel suspended */
494 DHD_TRACE(("%s: force extra Suspend setting\n",
495 __func__));
496
497 dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM,
498 (char *)&power_mode,
499 sizeof(power_mode));
500
501 /* Enable packet filter, only allow unicast
502 packet to send up */
503 dhd_set_packet_filter(1, dhd);
504
505 /* if dtim skip setup as default force it
506 * to wake each thrid dtim
507 * for better power saving.
508 * Note that side effect is chance to miss BC/MC
509 * packet
510 */
511 if ((dhd->dtim_skip == 0) || (dhd->dtim_skip == 1))
512 bcn_li_dtim = 3;
513 else
514 bcn_li_dtim = dhd->dtim_skip;
515 bcm_mkiovar("bcn_li_dtim", (char *)&bcn_li_dtim,
516 4, iovbuf, sizeof(iovbuf));
517 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
518 sizeof(iovbuf));
519#ifdef CUSTOMER_HW2
520 /* Disable build-in roaming to allowed \
521 * supplicant to take of romaing
522 */
523 bcm_mkiovar("roam_off", (char *)&roamvar, 4,
524 iovbuf, sizeof(iovbuf));
525 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
526 sizeof(iovbuf));
527#endif /* CUSTOMER_HW2 */
528 } else {
529
530 /* Kernel resumed */
531 DHD_TRACE(("%s: Remove extra suspend setting\n",
532 __func__));
533
534 power_mode = PM_FAST;
535 dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM,
536 (char *)&power_mode,
537 sizeof(power_mode));
538
539 /* disable pkt filter */
540 dhd_set_packet_filter(0, dhd);
541
542 /* restore pre-suspend setting for dtim_skip */
543 bcm_mkiovar("bcn_li_dtim", (char *)&dhd->dtim_skip,
544 4, iovbuf, sizeof(iovbuf));
545
546 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
547 sizeof(iovbuf));
548#ifdef CUSTOMER_HW2
549 roamvar = 0;
550 bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf,
551 sizeof(iovbuf));
552 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
553 sizeof(iovbuf));
554#endif /* CUSTOMER_HW2 */
555 }
556 }
557
558 return 0;
559}
560
561static void dhd_suspend_resume_helper(struct dhd_info *dhd, int val)
562{
563 dhd_pub_t *dhdp = &dhd->pub;
564
565 dhd_os_proto_block(dhdp);
566 /* Set flag when early suspend was called */
567 dhdp->in_suspend = val;
568 if (!dhdp->suspend_disable_flag)
569 dhd_set_suspend(val, dhdp);
570 dhd_os_proto_unblock(dhdp);
571}
572
573static void dhd_early_suspend(struct early_suspend *h)
574{
575 struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
576
577 DHD_TRACE(("%s: enter\n", __func__));
578
579 if (dhd)
580 dhd_suspend_resume_helper(dhd, 1);
581
582}
583
584static void dhd_late_resume(struct early_suspend *h)
585{
586 struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
587
588 DHD_TRACE(("%s: enter\n", __func__));
589
590 if (dhd)
591 dhd_suspend_resume_helper(dhd, 0);
592}
593#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
594
595/*
596 * Generalized timeout mechanism. Uses spin sleep with exponential
597 * back-off until
598 * the sleep time reaches one jiffy, then switches over to task delay. Usage:
599 *
600 * dhd_timeout_start(&tmo, usec);
601 * while (!dhd_timeout_expired(&tmo))
602 * if (poll_something())
603 * break;
604 * if (dhd_timeout_expired(&tmo))
605 * fatal();
606 */
607
608void dhd_timeout_start(dhd_timeout_t *tmo, uint usec)
609{
610 tmo->limit = usec;
611 tmo->increment = 0;
612 tmo->elapsed = 0;
613 tmo->tick = 1000000 / HZ;
614}
615
616int dhd_timeout_expired(dhd_timeout_t *tmo)
617{
618 /* Does nothing the first call */
619 if (tmo->increment == 0) {
620 tmo->increment = 1;
621 return 0;
622 }
623
624 if (tmo->elapsed >= tmo->limit)
625 return 1;
626
627 /* Add the delay that's about to take place */
628 tmo->elapsed += tmo->increment;
629
630 if (tmo->increment < tmo->tick) {
631 OSL_DELAY(tmo->increment);
632 tmo->increment *= 2;
633 if (tmo->increment > tmo->tick)
634 tmo->increment = tmo->tick;
635 } else {
636 wait_queue_head_t delay_wait;
637 DECLARE_WAITQUEUE(wait, current);
638 int pending;
639 init_waitqueue_head(&delay_wait);
640 add_wait_queue(&delay_wait, &wait);
641 set_current_state(TASK_INTERRUPTIBLE);
642 schedule_timeout(1);
643 pending = signal_pending(current);
644 remove_wait_queue(&delay_wait, &wait);
645 set_current_state(TASK_RUNNING);
646 if (pending)
647 return 1; /* Interrupted */
648 }
649
650 return 0;
651}
652
653static int dhd_net2idx(dhd_info_t *dhd, struct net_device *net)
654{
655 int i = 0;
656
657 ASSERT(dhd);
658 while (i < DHD_MAX_IFS) {
659 if (dhd->iflist[i] && (dhd->iflist[i]->net == net))
660 return i;
661 i++;
662 }
663
664 return DHD_BAD_IF;
665}
666
667int dhd_ifname2idx(dhd_info_t *dhd, char *name)
668{
669 int i = DHD_MAX_IFS;
670
671 ASSERT(dhd);
672
673 if (name == NULL || *name == '\0')
674 return 0;
675
676 while (--i > 0)
677 if (dhd->iflist[i]
678 && !strncmp(dhd->iflist[i]->name, name, IFNAMSIZ))
679 break;
680
681 DHD_TRACE(("%s: return idx %d for \"%s\"\n", __func__, i, name));
682
683 return i; /* default - the primary interface */
684}
685
686char *dhd_ifname(dhd_pub_t *dhdp, int ifidx)
687{
688 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
689
690 ASSERT(dhd);
691
692 if (ifidx < 0 || ifidx >= DHD_MAX_IFS) {
693 DHD_ERROR(("%s: ifidx %d out of range\n", __func__, ifidx));
694 return "<if_bad>";
695 }
696
697 if (dhd->iflist[ifidx] == NULL) {
698 DHD_ERROR(("%s: null i/f %d\n", __func__, ifidx));
699 return "<if_null>";
700 }
701
702 if (dhd->iflist[ifidx]->net)
703 return dhd->iflist[ifidx]->net->name;
704
705 return "<if_none>";
706}
707
708static void _dhd_set_multicast_list(dhd_info_t *dhd, int ifidx)
709{
710 struct net_device *dev;
711 struct netdev_hw_addr *ha;
712 uint32 allmulti, cnt;
713
714 wl_ioctl_t ioc;
715 char *buf, *bufp;
716 uint buflen;
717 int ret;
718
719 ASSERT(dhd && dhd->iflist[ifidx]);
720 dev = dhd->iflist[ifidx]->net;
721 cnt = netdev_mc_count(dev);
722
723 /* Determine initial value of allmulti flag */
724 allmulti = (dev->flags & IFF_ALLMULTI) ? TRUE : FALSE;
725
726 /* Send down the multicast list first. */
727
728 buflen = sizeof("mcast_list") + sizeof(cnt) + (cnt * ETHER_ADDR_LEN);
a618cc28
JC		 729 bufp = buf = MALLOC(dhd->pub.osh, buflen);
730 if (!bufp) {
cf2b4488
HP		 731 DHD_ERROR(("%s: out of memory for mcast_list, cnt %d\n",
732 dhd_ifname(&dhd->pub, ifidx), cnt));
733 return;
734 }
735
736 strcpy(bufp, "mcast_list");
737 bufp += strlen("mcast_list") + 1;
738
739 cnt = htol32(cnt);
740 memcpy(bufp, &cnt, sizeof(cnt));
741 bufp += sizeof(cnt);
742
743 netdev_for_each_mc_addr(ha, dev) {
744 if (!cnt)
745 break;
746 memcpy(bufp, ha->addr, ETHER_ADDR_LEN);
747 bufp += ETHER_ADDR_LEN;
748 cnt--;
749 }
750
751 memset(&ioc, 0, sizeof(ioc));
752 ioc.cmd = WLC_SET_VAR;
753 ioc.buf = buf;
754 ioc.len = buflen;
755 ioc.set = TRUE;
756
757 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
758 if (ret < 0) {
759 DHD_ERROR(("%s: set mcast_list failed, cnt %d\n",
760 dhd_ifname(&dhd->pub, ifidx), cnt));
761 allmulti = cnt ? TRUE : allmulti;
762 }
763
764 MFREE(dhd->pub.osh, buf, buflen);
765
766 /* Now send the allmulti setting. This is based on the setting in the
767 * net_device flags, but might be modified above to be turned on if we
768 * were trying to set some addresses and dongle rejected it...
769 */
770
771 buflen = sizeof("allmulti") + sizeof(allmulti);
a618cc28
JC		 772 buf = MALLOC(dhd->pub.osh, buflen);
773 if (!buf) {
cf2b4488
HP		 774 DHD_ERROR(("%s: out of memory for allmulti\n",
775 dhd_ifname(&dhd->pub, ifidx)));
776 return;
777 }
778 allmulti = htol32(allmulti);
779
780 if (!bcm_mkiovar
781 ("allmulti", (void *)&allmulti, sizeof(allmulti), buf, buflen)) {
782 DHD_ERROR(("%s: mkiovar failed for allmulti, datalen %d "
783 "buflen %u\n", dhd_ifname(&dhd->pub, ifidx),
784 (int)sizeof(allmulti), buflen));
785 MFREE(dhd->pub.osh, buf, buflen);
786 return;
787 }
788
789 memset(&ioc, 0, sizeof(ioc));
790 ioc.cmd = WLC_SET_VAR;
791 ioc.buf = buf;
792 ioc.len = buflen;
793 ioc.set = TRUE;
794
795 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
796 if (ret < 0) {
797 DHD_ERROR(("%s: set allmulti %d failed\n",
798 dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
799 }
800
801 MFREE(dhd->pub.osh, buf, buflen);
802
803 /* Finally, pick up the PROMISC flag as well, like the NIC
804 driver does */
805
806 allmulti = (dev->flags & IFF_PROMISC) ? TRUE : FALSE;
807 allmulti = htol32(allmulti);
808
809 memset(&ioc, 0, sizeof(ioc));
810 ioc.cmd = WLC_SET_PROMISC;
811 ioc.buf = &allmulti;
812 ioc.len = sizeof(allmulti);
813 ioc.set = TRUE;
814
815 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
816 if (ret < 0) {
817 DHD_ERROR(("%s: set promisc %d failed\n",
818 dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
819 }
820}
821
822static int
823_dhd_set_mac_address(dhd_info_t *dhd, int ifidx, struct ether_addr *addr)
824{
825 char buf[32];
826 wl_ioctl_t ioc;
827 int ret;
828
829 DHD_TRACE(("%s enter\n", __func__));
830 if (!bcm_mkiovar
831 ("cur_etheraddr", (char *)addr, ETHER_ADDR_LEN, buf, 32)) {
832 DHD_ERROR(("%s: mkiovar failed for cur_etheraddr\n",
833 dhd_ifname(&dhd->pub, ifidx)));
834 return -1;
835 }
836 memset(&ioc, 0, sizeof(ioc));
837 ioc.cmd = WLC_SET_VAR;
838 ioc.buf = buf;
839 ioc.len = 32;
840 ioc.set = TRUE;
841
842 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
843 if (ret < 0) {
844 DHD_ERROR(("%s: set cur_etheraddr failed\n",
845 dhd_ifname(&dhd->pub, ifidx)));
846 } else {
847 memcpy(dhd->iflist[ifidx]->net->dev_addr, addr, ETHER_ADDR_LEN);
848 }
849
850 return ret;
851}
852
853#ifdef SOFTAP
854extern struct net_device *ap_net_dev;
855#endif
856
857static void dhd_op_if(dhd_if_t *ifp)
858{
859 dhd_info_t *dhd;
860 int ret = 0, err = 0;
861
862 ASSERT(ifp && ifp->info && ifp->idx); /* Virtual interfaces only */
863
864 dhd = ifp->info;
865
866 DHD_TRACE(("%s: idx %d, state %d\n", __func__, ifp->idx, ifp->state));
867
868 switch (ifp->state) {
869 case WLC_E_IF_ADD:
870 /*
871 * Delete the existing interface before overwriting it
872 * in case we missed the WLC_E_IF_DEL event.
873 */
874 if (ifp->net != NULL) {
875 DHD_ERROR(("%s: ERROR: netdev:%s already exists, "
876 "try free & unregister\n",
877 __func__, ifp->net->name));
878 netif_stop_queue(ifp->net);
879 unregister_netdev(ifp->net);
880 free_netdev(ifp->net);
881 }
882 /* Allocate etherdev, including space for private structure */
a618cc28
JC		 883 ifp->net = alloc_etherdev(sizeof(dhd));
884 if (!ifp->net) {
cf2b4488
HP		 885 DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
886 ret = -ENOMEM;
887 }
888 if (ret == 0) {
889 strcpy(ifp->net->name, ifp->name);
890 memcpy(netdev_priv(ifp->net), &dhd, sizeof(dhd));
a618cc28
JC		 891 err = dhd_net_attach(&dhd->pub, ifp->idx);
892 if (err != 0) {
cf2b4488
HP		 893 DHD_ERROR(("%s: dhd_net_attach failed, "
894 "err %d\n",
895 __func__, err));
896 ret = -EOPNOTSUPP;
897 } else {
898#ifdef SOFTAP
899 /* semaphore that the soft AP CODE
900 waits on */
901 extern struct semaphore ap_eth_sema;
902
903 /* save ptr to wl0.1 netdev for use
904 in wl_iw.c */
905 ap_net_dev = ifp->net;
906 /* signal to the SOFTAP 'sleeper' thread,
907 wl0.1 is ready */
908 up(&ap_eth_sema);
909#endif
910 DHD_TRACE(("\n ==== pid:%x, net_device for "
911 "if:%s created ===\n\n",
912 current->pid, ifp->net->name));
913 ifp->state = 0;
914 }
915 }
916 break;
917 case WLC_E_IF_DEL:
918 if (ifp->net != NULL) {
919 DHD_TRACE(("\n%s: got 'WLC_E_IF_DEL' state\n",
920 __func__));
921 netif_stop_queue(ifp->net);
922 unregister_netdev(ifp->net);
923 ret = DHD_DEL_IF; /* Make sure the free_netdev()
924 is called */
925 }
926 break;
927 default:
928 DHD_ERROR(("%s: bad op %d\n", __func__, ifp->state));
929 ASSERT(!ifp->state);
930 break;
931 }
932
933 if (ret < 0) {
934 if (ifp->net)
935 free_netdev(ifp->net);
936
937 dhd->iflist[ifp->idx] = NULL;
938 MFREE(dhd->pub.osh, ifp, sizeof(*ifp));
939#ifdef SOFTAP
940 if (ifp->net == ap_net_dev)
941 ap_net_dev = NULL; /* NULL SOFTAP global
942 wl0.1 as well */
943#endif /* SOFTAP */
944 }
945}
946
947static int _dhd_sysioc_thread(void *data)
948{
949 dhd_info_t *dhd = (dhd_info_t *) data;
950 int i;
951#ifdef SOFTAP
952 bool in_ap = FALSE;
953#endif
954
955 DAEMONIZE("dhd_sysioc");
956
957 while (down_interruptible(&dhd->sysioc_sem) == 0) {
958 for (i = 0; i < DHD_MAX_IFS; i++) {
959 if (dhd->iflist[i]) {
960#ifdef SOFTAP
961 in_ap = (ap_net_dev != NULL);
962#endif /* SOFTAP */
963 if (dhd->iflist[i]->state)
964 dhd_op_if(dhd->iflist[i]);
965#ifdef SOFTAP
966 if (dhd->iflist[i] == NULL) {
967 DHD_TRACE(("\n\n %s: interface %d "
968 "removed!\n", __func__, i));
969 continue;
970 }
971
972 if (in_ap && dhd->set_macaddress) {
973 DHD_TRACE(("attempt to set MAC for %s "
974 "in AP Mode," "blocked. \n",
975 dhd->iflist[i]->net->name));
976 dhd->set_macaddress = FALSE;
977 continue;
978 }
979
980 if (in_ap && dhd->set_multicast) {
981 DHD_TRACE(("attempt to set MULTICAST list for %s" "in AP Mode, blocked. \n",
982 dhd->iflist[i]->net->name));
983 dhd->set_multicast = FALSE;
984 continue;
985 }
986#endif /* SOFTAP */
987 if (dhd->set_multicast) {
988 dhd->set_multicast = FALSE;
989 _dhd_set_multicast_list(dhd, i);
990 }
991 if (dhd->set_macaddress) {
992 dhd->set_macaddress = FALSE;
993 _dhd_set_mac_address(dhd, i,
994 &dhd->macvalue);
995 }
996 }
997 }
998 }
999 complete_and_exit(&dhd->sysioc_exited, 0);
1000}
1001
1002static int dhd_set_mac_address(struct net_device *dev, void *addr)
1003{
1004 int ret = 0;
1005
1006 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
1007 struct sockaddr *sa = (struct sockaddr *)addr;
1008 int ifidx;
1009
1010 ifidx = dhd_net2idx(dhd, dev);
1011 if (ifidx == DHD_BAD_IF)
1012 return -1;
1013
1014 ASSERT(dhd->sysioc_pid >= 0);
1015 memcpy(&dhd->macvalue, sa->sa_data, ETHER_ADDR_LEN);
1016 dhd->set_macaddress = TRUE;
1017 up(&dhd->sysioc_sem);
1018
1019 return ret;
1020}
1021
1022static void dhd_set_multicast_list(struct net_device *dev)
1023{
1024 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
1025 int ifidx;
1026
1027 ifidx = dhd_net2idx(dhd, dev);
1028 if (ifidx == DHD_BAD_IF)
1029 return;
1030
1031 ASSERT(dhd->sysioc_pid >= 0);
1032 dhd->set_multicast = TRUE;
1033 up(&dhd->sysioc_sem);
1034}
1035
1036int dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, void *pktbuf)
1037{
1038 int ret;
1039 dhd_info_t *dhd = (dhd_info_t *) (dhdp->info);
1040
1041 /* Reject if down */
1042 if (!dhdp->up || (dhdp->busstate == DHD_BUS_DOWN))
1043 return -ENODEV;
1044
1045 /* Update multicast statistic */
1046 if (PKTLEN(pktbuf) >= ETHER_ADDR_LEN) {
3fd79f7c 1047 u8 *pktdata = (u8 *) PKTDATA(pktbuf);
cf2b4488
HP		 1048 struct ether_header *eh = (struct ether_header *)pktdata;
1049
1050 if (ETHER_ISMULTI(eh->ether_dhost))
1051 dhdp->tx_multicast++;
1052 if (ntoh16(eh->ether_type) == ETHER_TYPE_802_1X)
1053 atomic_inc(&dhd->pend_8021x_cnt);
1054 }
1055
1056 /* Look into the packet and update the packet priority */
1057 if ((PKTPRIO(pktbuf) == 0))
1058 pktsetprio(pktbuf, FALSE);
1059
1060 /* If the protocol uses a data header, apply it */
1061 dhd_prot_hdrpush(dhdp, ifidx, pktbuf);
1062
1063 /* Use bus module to send data frame */
1064#ifdef BCMDBUS
1065 ret = dbus_send_pkt(dhdp->dbus, pktbuf, NULL /* pktinfo */);
1066#else
1067 WAKE_LOCK_TIMEOUT(dhdp, WAKE_LOCK_TMOUT, 25);
1068 ret = dhd_bus_txdata(dhdp->bus, pktbuf);
1069#endif /* BCMDBUS */
1070
1071 return ret;
1072}
1073
1074static int dhd_start_xmit(struct sk_buff *skb, struct net_device *net)
1075{
1076 int ret;
1077 void *pktbuf;
1078 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1079 int ifidx;
1080
1081 DHD_TRACE(("%s: Enter\n", __func__));
1082
1083 /* Reject if down */
1084 if (!dhd->pub.up || (dhd->pub.busstate == DHD_BUS_DOWN)) {
1085 DHD_ERROR(("%s: xmit rejected pub.up=%d busstate=%d\n",
1086 __func__, dhd->pub.up, dhd->pub.busstate));
1087 netif_stop_queue(net);
1088 return -ENODEV;
1089 }
1090
1091 ifidx = dhd_net2idx(dhd, net);
1092 if (ifidx == DHD_BAD_IF) {
1093 DHD_ERROR(("%s: bad ifidx %d\n", __func__, ifidx));
1094 netif_stop_queue(net);
1095 return -ENODEV;
1096 }
1097
1098 /* Make sure there's enough room for any header */
1099 if (skb_headroom(skb) < dhd->pub.hdrlen) {
1100 struct sk_buff *skb2;
1101
1102 DHD_INFO(("%s: insufficient headroom\n",
1103 dhd_ifname(&dhd->pub, ifidx)));
1104 dhd->pub.tx_realloc++;
1105 skb2 = skb_realloc_headroom(skb, dhd->pub.hdrlen);
1106 dev_kfree_skb(skb);
a618cc28
JC		 1107 skb = skb2;
1108 if (skb == NULL) {
cf2b4488
HP		 1109 DHD_ERROR(("%s: skb_realloc_headroom failed\n",
1110 dhd_ifname(&dhd->pub, ifidx)));
1111 ret = -ENOMEM;
1112 goto done;
1113 }
1114 }
1115
1116 /* Convert to packet */
a618cc28
JC		 1117 pktbuf = PKTFRMNATIVE(dhd->pub.osh, skb);
1118 if (!pktbuf) {
cf2b4488
HP		 1119 DHD_ERROR(("%s: PKTFRMNATIVE failed\n",
1120 dhd_ifname(&dhd->pub, ifidx)));
1121 dev_kfree_skb_any(skb);
1122 ret = -ENOMEM;
1123 goto done;
1124 }
1125
1126 ret = dhd_sendpkt(&dhd->pub, ifidx, pktbuf);
1127
1128done:
1129 if (ret)
1130 dhd->pub.dstats.tx_dropped++;
1131 else
1132 dhd->pub.tx_packets++;
1133
1134 /* Return ok: we always eat the packet */
1135 return 0;
1136}
1137
1138void dhd_txflowcontrol(dhd_pub_t *dhdp, int ifidx, bool state)
1139{
1140 struct net_device *net;
1141 dhd_info_t *dhd = dhdp->info;
1142
1143 DHD_TRACE(("%s: Enter\n", __func__));
1144
1145 dhdp->txoff = state;
1146 ASSERT(dhd && dhd->iflist[ifidx]);
1147 net = dhd->iflist[ifidx]->net;
1148 if (state == ON)
1149 netif_stop_queue(net);
1150 else
1151 netif_wake_queue(net);
1152}
1153
1154void dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, void *pktbuf, int numpkt)
1155{
1156 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
1157 struct sk_buff *skb;
580a0bd9 1158 unsigned char *eth;
cf2b4488
HP		 1159 uint len;
1160 void *data, *pnext, *save_pktbuf;
1161 int i;
1162 dhd_if_t *ifp;
1163 wl_event_msg_t event;
1164
1165 DHD_TRACE(("%s: Enter\n", __func__));
1166
1167 save_pktbuf = pktbuf;
1168
1169 for (i = 0; pktbuf && i < numpkt; i++, pktbuf = pnext) {
1170
1171 pnext = PKTNEXT(pktbuf);
1172 PKTSETNEXT(pktbuf, NULL);
1173
1174 skb = PKTTONATIVE(dhdp->osh, pktbuf);
1175
1176 /* Get the protocol, maintain skb around eth_type_trans()
1177 * The main reason for this hack is for the limitation of
1178 * Linux 2.4 where 'eth_type_trans' uses the
1179 * 'net->hard_header_len'
1180 * to perform skb_pull inside vs ETH_HLEN. Since to avoid
1181 * coping of the packet coming from the network stack to add
1182 * BDC, Hardware header etc, during network interface
1183 * registration
1184 * we set the 'net->hard_header_len' to ETH_HLEN + extra space
1185 * required
1186 * for BDC, Hardware header etc. and not just the ETH_HLEN
1187 */
1188 eth = skb->data;
1189 len = skb->len;
1190
1191 ifp = dhd->iflist[ifidx];
1192 if (ifp == NULL)
1193 ifp = dhd->iflist[0];
1194
1195 ASSERT(ifp);
1196 skb->dev = ifp->net;
1197 skb->protocol = eth_type_trans(skb, skb->dev);
1198
1199 if (skb->pkt_type == PACKET_MULTICAST)
1200 dhd->pub.rx_multicast++;
1201
1202 skb->data = eth;
1203 skb->len = len;
1204
1205 /* Strip header, count, deliver upward */
1206 skb_pull(skb, ETH_HLEN);
1207
1208 /* Process special event packets and then discard them */
1209 if (ntoh16(skb->protocol) == ETHER_TYPE_BRCM)
1210 dhd_wl_host_event(dhd, &ifidx,
1211 skb->mac_header,
1212 &event, &data);
1213
1214 ASSERT(ifidx < DHD_MAX_IFS && dhd->iflist[ifidx]);
1215 if (dhd->iflist[ifidx] && !dhd->iflist[ifidx]->state)
1216 ifp = dhd->iflist[ifidx];
1217
1218 if (ifp->net)
1219 ifp->net->last_rx = jiffies;
1220
1221 dhdp->dstats.rx_bytes += skb->len;
1222 dhdp->rx_packets++; /* Local count */
1223
1224 if (in_interrupt()) {
1225 netif_rx(skb);
1226 } else {
1227 /* If the receive is not processed inside an ISR,
1228 * the softirqd must be woken explicitly to service
1229 * the NET_RX_SOFTIRQ. In 2.6 kernels, this is handled
1230 * by netif_rx_ni(), but in earlier kernels, we need
1231 * to do it manually.
1232 */
1233 netif_rx_ni(skb);
1234 }
1235 }
1236}
1237
1238void dhd_event(struct dhd_info *dhd, char *evpkt, int evlen, int ifidx)
1239{
1240 /* Linux version has nothing to do */
1241 return;
1242}
1243
1244void dhd_txcomplete(dhd_pub_t *dhdp, void *txp, bool success)
1245{
1246 uint ifidx;
1247 dhd_info_t *dhd = (dhd_info_t *) (dhdp->info);
1248 struct ether_header *eh;
1249 uint16 type;
1250
1251 dhd_prot_hdrpull(dhdp, &ifidx, txp);
1252
1253 eh = (struct ether_header *)PKTDATA(txp);
1254 type = ntoh16(eh->ether_type);
1255
1256 if (type == ETHER_TYPE_802_1X)
1257 atomic_dec(&dhd->pend_8021x_cnt);
1258
1259}
1260
1261static struct net_device_stats *dhd_get_stats(struct net_device *net)
1262{
1263 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1264 dhd_if_t *ifp;
1265 int ifidx;
1266
1267 DHD_TRACE(("%s: Enter\n", __func__));
1268
1269 ifidx = dhd_net2idx(dhd, net);
1270 if (ifidx == DHD_BAD_IF)
1271 return NULL;
1272
1273 ifp = dhd->iflist[ifidx];
1274 ASSERT(dhd && ifp);
1275
1276 if (dhd->pub.up) {
1277 /* Use the protocol to get dongle stats */
1278 dhd_prot_dstats(&dhd->pub);
1279 }
1280
1281 /* Copy dongle stats to net device stats */
1282 ifp->stats.rx_packets = dhd->pub.dstats.rx_packets;
1283 ifp->stats.tx_packets = dhd->pub.dstats.tx_packets;
1284 ifp->stats.rx_bytes = dhd->pub.dstats.rx_bytes;
1285 ifp->stats.tx_bytes = dhd->pub.dstats.tx_bytes;
1286 ifp->stats.rx_errors = dhd->pub.dstats.rx_errors;
1287 ifp->stats.tx_errors = dhd->pub.dstats.tx_errors;
1288 ifp->stats.rx_dropped = dhd->pub.dstats.rx_dropped;
1289 ifp->stats.tx_dropped = dhd->pub.dstats.tx_dropped;
1290 ifp->stats.multicast = dhd->pub.dstats.multicast;
1291
1292 return &ifp->stats;
1293}
1294
1295static int dhd_watchdog_thread(void *data)
1296{
1297 dhd_info_t *dhd = (dhd_info_t *) data;
1298 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_WATCHDOG, "dhd_watchdog_thread");
1299
1300 /* This thread doesn't need any user-level access,
1301 * so get rid of all our resources
1302 */
1303#ifdef DHD_SCHED
1304 if (dhd_watchdog_prio > 0) {
1305 struct sched_param param;
1306 param.sched_priority = (dhd_watchdog_prio < MAX_RT_PRIO) ?
1307 dhd_watchdog_prio : (MAX_RT_PRIO - 1);
1308 setScheduler(current, SCHED_FIFO, &param);
1309 }
1310#endif /* DHD_SCHED */
1311
1312 DAEMONIZE("dhd_watchdog");
1313
1314 /* Run until signal received */
1315 while (1) {
1316 if (down_interruptible(&dhd->watchdog_sem) == 0) {
1317 if (dhd->pub.dongle_reset == FALSE) {
1318 WAKE_LOCK(&dhd->pub, WAKE_LOCK_WATCHDOG);
1319 /* Call the bus module watchdog */
1320 dhd_bus_watchdog(&dhd->pub);
1321 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_WATCHDOG);
1322 }
1323 /* Count the tick for reference */
1324 dhd->pub.tickcnt++;
1325 } else
1326 break;
1327 }
1328
1329 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_WATCHDOG);
1330 complete_and_exit(&dhd->watchdog_exited, 0);
1331}
1332
3deea904 1333static void dhd_watchdog(unsigned long data)
cf2b4488
HP		 1334{
1335 dhd_info_t *dhd = (dhd_info_t *) data;
1336
1337 if (dhd->watchdog_pid >= 0) {
1338 up(&dhd->watchdog_sem);
1339
1340 /* Reschedule the watchdog */
1341 if (dhd->wd_timer_valid) {
1342 mod_timer(&dhd->timer,
1343 jiffies + dhd_watchdog_ms * HZ / 1000);
1344 }
1345 return;
1346 }
1347
1348 /* Call the bus module watchdog */
1349 dhd_bus_watchdog(&dhd->pub);
1350
1351 /* Count the tick for reference */
1352 dhd->pub.tickcnt++;
1353
1354 /* Reschedule the watchdog */
1355 if (dhd->wd_timer_valid)
1356 mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000);
1357}
1358
1359static int dhd_dpc_thread(void *data)
1360{
1361 dhd_info_t *dhd = (dhd_info_t *) data;
1362
1363 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_DPC, "dhd_dpc_thread");
1364 /* This thread doesn't need any user-level access,
1365 * so get rid of all our resources
1366 */
1367#ifdef DHD_SCHED
1368 if (dhd_dpc_prio > 0) {
1369 struct sched_param param;
1370 param.sched_priority =
1371 (dhd_dpc_prio <
1372 MAX_RT_PRIO) ? dhd_dpc_prio : (MAX_RT_PRIO - 1);
1373 setScheduler(current, SCHED_FIFO, &param);
1374 }
1375#endif /* DHD_SCHED */
1376
1377 DAEMONIZE("dhd_dpc");
1378
1379 /* Run until signal received */
1380 while (1) {
1381 if (down_interruptible(&dhd->dpc_sem) == 0) {
1382 /* Call bus dpc unless it indicated down
1383 (then clean stop) */
1384 if (dhd->pub.busstate != DHD_BUS_DOWN) {
1385 WAKE_LOCK(&dhd->pub, WAKE_LOCK_DPC);
1386 if (dhd_bus_dpc(dhd->pub.bus)) {
1387 up(&dhd->dpc_sem);
1388 WAKE_LOCK_TIMEOUT(&dhd->pub,
1389 WAKE_LOCK_TMOUT, 25);
1390 }
1391 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_DPC);
1392 } else {
1393 dhd_bus_stop(dhd->pub.bus, TRUE);
1394 }
1395 } else
1396 break;
1397 }
1398
1399 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_DPC);
1400
1401 complete_and_exit(&dhd->dpc_exited, 0);
1402}
1403
3deea904 1404static void dhd_dpc(unsigned long data)
cf2b4488
HP		 1405{
1406 dhd_info_t *dhd;
1407
1408 dhd = (dhd_info_t *) data;
1409
1410 /* Call bus dpc unless it indicated down (then clean stop) */
1411 if (dhd->pub.busstate != DHD_BUS_DOWN) {
1412 if (dhd_bus_dpc(dhd->pub.bus))
1413 tasklet_schedule(&dhd->tasklet);
1414 } else {
1415 dhd_bus_stop(dhd->pub.bus, TRUE);
1416 }
1417}
1418
1419void dhd_sched_dpc(dhd_pub_t *dhdp)
1420{
1421 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
1422
1423 if (dhd->dpc_pid >= 0) {
1424 up(&dhd->dpc_sem);
1425 return;
1426 }
1427
1428 tasklet_schedule(&dhd->tasklet);
1429}
1430
1431#ifdef TOE
1432/* Retrieve current toe component enables, which are kept
1433 as a bitmap in toe_ol iovar */
1434static int dhd_toe_get(dhd_info_t *dhd, int ifidx, uint32 *toe_ol)
1435{
1436 wl_ioctl_t ioc;
1437 char buf[32];
1438 int ret;
1439
1440 memset(&ioc, 0, sizeof(ioc));
1441
1442 ioc.cmd = WLC_GET_VAR;
1443 ioc.buf = buf;
1444 ioc.len = (uint) sizeof(buf);
1445 ioc.set = FALSE;
1446
1447 strcpy(buf, "toe_ol");
a618cc28
JC		 1448 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1449 if (ret < 0) {
cf2b4488
HP		 1450 /* Check for older dongle image that doesn't support toe_ol */
1451 if (ret == -EIO) {
1452 DHD_ERROR(("%s: toe not supported by device\n",
1453 dhd_ifname(&dhd->pub, ifidx)));
1454 return -EOPNOTSUPP;
1455 }
1456
1457 DHD_INFO(("%s: could not get toe_ol: ret=%d\n",
1458 dhd_ifname(&dhd->pub, ifidx), ret));
1459 return ret;
1460 }
1461
1462 memcpy(toe_ol, buf, sizeof(uint32));
1463 return 0;
1464}
1465
1466/* Set current toe component enables in toe_ol iovar,
1467 and set toe global enable iovar */
1468static int dhd_toe_set(dhd_info_t *dhd, int ifidx, uint32 toe_ol)
1469{
1470 wl_ioctl_t ioc;
1471 char buf[32];
1472 int toe, ret;
1473
1474 memset(&ioc, 0, sizeof(ioc));
1475
1476 ioc.cmd = WLC_SET_VAR;
1477 ioc.buf = buf;
1478 ioc.len = (uint) sizeof(buf);
1479 ioc.set = TRUE;
1480
1481 /* Set toe_ol as requested */
1482
1483 strcpy(buf, "toe_ol");
1484 memcpy(&buf[sizeof("toe_ol")], &toe_ol, sizeof(uint32));
1485
a618cc28
JC		 1486 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1487 if (ret < 0) {
cf2b4488
HP		 1488 DHD_ERROR(("%s: could not set toe_ol: ret=%d\n",
1489 dhd_ifname(&dhd->pub, ifidx), ret));
1490 return ret;
1491 }
1492
1493 /* Enable toe globally only if any components are enabled. */
1494
1495 toe = (toe_ol != 0);
1496
1497 strcpy(buf, "toe");
1498 memcpy(&buf[sizeof("toe")], &toe, sizeof(uint32));
1499
a618cc28
JC		 1500 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1501 if (ret < 0) {
cf2b4488
HP		 1502 DHD_ERROR(("%s: could not set toe: ret=%d\n",
1503 dhd_ifname(&dhd->pub, ifidx), ret));
1504 return ret;
1505 }
1506
1507 return 0;
1508}
1509#endif /* TOE */
1510
1511static void dhd_ethtool_get_drvinfo(struct net_device *net,
1512 struct ethtool_drvinfo *info)
1513{
1514 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1515
93ad12cf 1516 sprintf(info->driver, DRV_MODULE_NAME);
cf2b4488 1517 sprintf(info->version, "%lu", dhd->pub.drv_version);
93ad12cf 1518 sprintf(info->fw_version, "%s", wl_cfg80211_get_fwname());
1519 sprintf(info->bus_info, "%s", dev_name(&wl_cfg80211_get_sdio_func()->dev));
cf2b4488
HP		 1520}
1521
1522struct ethtool_ops dhd_ethtool_ops = {
1523 .get_drvinfo = dhd_ethtool_get_drvinfo
1524};
1525
1526static int dhd_ethtool(dhd_info_t *dhd, void *uaddr)
1527{
1528 struct ethtool_drvinfo info;
1529 char drvname[sizeof(info.driver)];
1530 uint32 cmd;
1531#ifdef TOE
1532 struct ethtool_value edata;
1533 uint32 toe_cmpnt, csum_dir;
1534 int ret;
1535#endif
1536
1537 DHD_TRACE(("%s: Enter\n", __func__));
1538
1539 /* all ethtool calls start with a cmd word */
1540 if (copy_from_user(&cmd, uaddr, sizeof(uint32)))
1541 return -EFAULT;
1542
1543 switch (cmd) {
1544 case ETHTOOL_GDRVINFO:
1545 /* Copy out any request driver name */
1546 if (copy_from_user(&info, uaddr, sizeof(info)))
1547 return -EFAULT;
1548 strncpy(drvname, info.driver, sizeof(info.driver));
1549 drvname[sizeof(info.driver) - 1] = '\0';
1550
1551 /* clear struct for return */
1552 memset(&info, 0, sizeof(info));
1553 info.cmd = cmd;
1554
1555 /* if dhd requested, identify ourselves */
1556 if (strcmp(drvname, "?dhd") == 0) {
1557 sprintf(info.driver, "dhd");
1558 strcpy(info.version, EPI_VERSION_STR);
1559 }
1560
1561 /* otherwise, require dongle to be up */
1562 else if (!dhd->pub.up) {
1563 DHD_ERROR(("%s: dongle is not up\n", __func__));
1564 return -ENODEV;
1565 }
1566
1567 /* finally, report dongle driver type */
1568 else if (dhd->pub.iswl)
1569 sprintf(info.driver, "wl");
1570 else
1571 sprintf(info.driver, "xx");
1572
1573 sprintf(info.version, "%lu", dhd->pub.drv_version);
1574 if (copy_to_user(uaddr, &info, sizeof(info)))
1575 return -EFAULT;
1576 DHD_CTL(("%s: given %*s, returning %s\n", __func__,
1577 (int)sizeof(drvname), drvname, info.driver));
1578 break;
1579
1580#ifdef TOE
1581 /* Get toe offload components from dongle */
1582 case ETHTOOL_GRXCSUM:
1583 case ETHTOOL_GTXCSUM:
a618cc28
JC		 1584 ret = dhd_toe_get(dhd, 0, &toe_cmpnt);
1585 if (ret < 0)
cf2b4488
HP		 1586 return ret;
1587
1588 csum_dir =
1589 (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
1590
1591 edata.cmd = cmd;
1592 edata.data = (toe_cmpnt & csum_dir) ? 1 : 0;
1593
1594 if (copy_to_user(uaddr, &edata, sizeof(edata)))
1595 return -EFAULT;
1596 break;
1597
1598 /* Set toe offload components in dongle */
1599 case ETHTOOL_SRXCSUM:
1600 case ETHTOOL_STXCSUM:
1601 if (copy_from_user(&edata, uaddr, sizeof(edata)))
1602 return -EFAULT;
1603
1604 /* Read the current settings, update and write back */
a618cc28
JC		 1605 ret = dhd_toe_get(dhd, 0, &toe_cmpnt);
1606 if (ret < 0)
cf2b4488
HP		 1607 return ret;
1608
1609 csum_dir =
1610 (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
1611
1612 if (edata.data != 0)
1613 toe_cmpnt |= csum_dir;
1614 else
1615 toe_cmpnt &= ~csum_dir;
1616
a618cc28
JC		 1617 ret = dhd_toe_set(dhd, 0, toe_cmpnt);
1618 if (ret < 0)
cf2b4488
HP		 1619 return ret;
1620
1621 /* If setting TX checksum mode, tell Linux the new mode */
1622 if (cmd == ETHTOOL_STXCSUM) {
1623 if (edata.data)
1624 dhd->iflist[0]->net->features |=
1625 NETIF_F_IP_CSUM;
1626 else
1627 dhd->iflist[0]->net->features &=
1628 ~NETIF_F_IP_CSUM;
1629 }
1630
1631 break;
1632#endif /* TOE */
1633
1634 default:
1635 return -EOPNOTSUPP;
1636 }
1637
1638 return 0;
1639}
1640
1641static int dhd_ioctl_entry(struct net_device *net, struct ifreq *ifr, int cmd)
1642{
1643 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1644 dhd_ioctl_t ioc;
1645 int bcmerror = 0;
1646 int buflen = 0;
1647 void *buf = NULL;
1648 uint driver = 0;
1649 int ifidx;
1650 bool is_set_key_cmd;
1651
1652 ifidx = dhd_net2idx(dhd, net);
1653 DHD_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __func__, ifidx, cmd));
1654
1655 if (ifidx == DHD_BAD_IF)
1656 return -1;
1657
1658#if defined(CONFIG_WIRELESS_EXT)
1659 /* linux wireless extensions */
1660 if ((cmd >= SIOCIWFIRST) && (cmd <= SIOCIWLAST)) {
1661 /* may recurse, do NOT lock */
1662 return wl_iw_ioctl(net, ifr, cmd);
1663 }
1664#endif /* defined(CONFIG_WIRELESS_EXT) */
1665
1666 if (cmd == SIOCETHTOOL)
1667 return dhd_ethtool(dhd, (void *)ifr->ifr_data);
1668
1669 if (cmd != SIOCDEVPRIVATE)
1670 return -EOPNOTSUPP;
1671
1672 memset(&ioc, 0, sizeof(ioc));
1673
1674 /* Copy the ioc control structure part of ioctl request */
1675 if (copy_from_user(&ioc, ifr->ifr_data, sizeof(wl_ioctl_t))) {
1676 bcmerror = -BCME_BADADDR;
1677 goto done;
1678 }
1679
1680 /* Copy out any buffer passed */
1681 if (ioc.buf) {
1682 buflen = MIN(ioc.len, DHD_IOCTL_MAXLEN);
1683 /* optimization for direct ioctl calls from kernel */
1684 /*
1685 if (segment_eq(get_fs(), KERNEL_DS)) {
1686 buf = ioc.buf;
1687 } else {
1688 */
1689 {
a618cc28
JC		 1690 buf = (char *)MALLOC(dhd->pub.osh, buflen);
1691 if (!buf) {
cf2b4488
HP		 1692 bcmerror = -BCME_NOMEM;
1693 goto done;
1694 }
1695 if (copy_from_user(buf, ioc.buf, buflen)) {
1696 bcmerror = -BCME_BADADDR;
1697 goto done;
1698 }
1699 }
1700 }
1701
1702 /* To differentiate between wl and dhd read 4 more byes */
1703 if ((copy_from_user(&driver, (char *)ifr->ifr_data + sizeof(wl_ioctl_t),
1704 sizeof(uint)) != 0)) {
1705 bcmerror = -BCME_BADADDR;
1706 goto done;
1707 }
1708
1709 if (!capable(CAP_NET_ADMIN)) {
1710 bcmerror = -BCME_EPERM;
1711 goto done;
1712 }
1713
1714 /* check for local dhd ioctl and handle it */
1715 if (driver == DHD_IOCTL_MAGIC) {
1716 bcmerror = dhd_ioctl((void *)&dhd->pub, &ioc, buf, buflen);
1717 if (bcmerror)
1718 dhd->pub.bcmerror = bcmerror;
1719 goto done;
1720 }
1721
1722 /* send to dongle (must be up, and wl) */
1723 if ((dhd->pub.busstate != DHD_BUS_DATA)) {
1724 DHD_ERROR(("%s DONGLE_DOWN,__func__\n", __func__));
1725 bcmerror = BCME_DONGLE_DOWN;
1726 goto done;
1727 }
1728
1729 if (!dhd->pub.iswl) {
1730 bcmerror = BCME_DONGLE_DOWN;
1731 goto done;
1732 }
1733
1734 /* Intercept WLC_SET_KEY IOCTL - serialize M4 send and set key IOCTL to
1735 * prevent M4 encryption.
1736 */
1737 is_set_key_cmd = ((ioc.cmd == WLC_SET_KEY) ||
1738 ((ioc.cmd == WLC_SET_VAR) &&
1739 !(strncmp("wsec_key", ioc.buf, 9))) ||
1740 ((ioc.cmd == WLC_SET_VAR) &&
1741 !(strncmp("bsscfg:wsec_key", ioc.buf, 15))));
1742 if (is_set_key_cmd)
1743 dhd_wait_pend8021x(net);
1744
1745 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_IOCTL, "dhd_ioctl_entry");
1746 WAKE_LOCK(&dhd->pub, WAKE_LOCK_IOCTL);
1747
1748 bcmerror =
1749 dhd_prot_ioctl(&dhd->pub, ifidx, (wl_ioctl_t *)&ioc, buf, buflen);
1750
1751 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_IOCTL);
1752 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_IOCTL);
1753done:
1754 if (!bcmerror && buf && ioc.buf) {
1755 if (copy_to_user(ioc.buf, buf, buflen))
1756 bcmerror = -EFAULT;
1757 }
1758
1759 if (buf)
1760 MFREE(dhd->pub.osh, buf, buflen);
1761
1762 return OSL_ERROR(bcmerror);
1763}
1764
1765static int dhd_stop(struct net_device *net)
1766{
1767#if !defined(IGNORE_ETH0_DOWN)
1768 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1769
1770 DHD_TRACE(("%s: Enter\n", __func__));
1771#ifdef CONFIG_CFG80211
1772 if (IS_CFG80211_FAVORITE()) {
1773 wl_cfg80211_down();
1774 }
1775#endif
1776 if (dhd->pub.up == 0)
1777 return 0;
1778
1779 /* Set state and stop OS transmissions */
1780 dhd->pub.up = 0;
1781 netif_stop_queue(net);
1782#else
1783 DHD_ERROR(("BYPASS %s:due to BRCM compilation : under investigation\n",
1784 __func__));
1785#endif /* !defined(IGNORE_ETH0_DOWN) */
1786
1787 OLD_MOD_DEC_USE_COUNT;
1788 return 0;
1789}
1790
1791static int dhd_open(struct net_device *net)
1792{
1793 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1794#ifdef TOE
1795 uint32 toe_ol;
1796#endif
1797 int ifidx = dhd_net2idx(dhd, net);
1798 int32 ret = 0;
1799
1800 DHD_TRACE(("%s: ifidx %d\n", __func__, ifidx));
1801
1802 if (ifidx == 0) { /* do it only for primary eth0 */
1803
1804 /* try to bring up bus */
a618cc28
JC		 1805 ret = dhd_bus_start(&dhd->pub);
1806 if (ret != 0) {
cf2b4488
HP		 1807 DHD_ERROR(("%s: failed with code %d\n", __func__, ret));
1808 return -1;
1809 }
1810 atomic_set(&dhd->pend_8021x_cnt, 0);
1811
1812 memcpy(net->dev_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
1813
1814#ifdef TOE
1815 /* Get current TOE mode from dongle */
1816 if (dhd_toe_get(dhd, ifidx, &toe_ol) >= 0
1817 && (toe_ol & TOE_TX_CSUM_OL) != 0)
1818 dhd->iflist[ifidx]->net->features |= NETIF_F_IP_CSUM;
1819 else
1820 dhd->iflist[ifidx]->net->features &= ~NETIF_F_IP_CSUM;
1821#endif
1822 }
1823 /* Allow transmit calls */
1824 netif_start_queue(net);
1825 dhd->pub.up = 1;
1826#ifdef CONFIG_CFG80211
1827 if (IS_CFG80211_FAVORITE()) {
1828 if (unlikely(wl_cfg80211_up())) {
1829 DHD_ERROR(("%s: failed to bring up cfg80211\n",
1830 __func__));
1831 return -1;
1832 }
1833 }
1834#endif
1835
1836 OLD_MOD_INC_USE_COUNT;
1837 return ret;
1838}
1839
1840osl_t *dhd_osl_attach(void *pdev, uint bustype)
1841{
1842 return osl_attach(pdev, bustype, TRUE);
1843}
1844
1845void dhd_osl_detach(osl_t *osh)
1846{
1847 if (MALLOCED(osh)) {
1848 DHD_ERROR(("%s: MEMORY LEAK %d bytes\n", __func__,
1849 MALLOCED(osh)));
1850 }
1851 osl_detach(osh);
1852}
1853
1854int
1855dhd_add_if(dhd_info_t *dhd, int ifidx, void *handle, char *name,
3fd79f7c 1856 u8 *mac_addr, uint32 flags, u8 bssidx)
cf2b4488
HP		 1857{
1858 dhd_if_t *ifp;
1859
1860 DHD_TRACE(("%s: idx %d, handle->%p\n", __func__, ifidx, handle));
1861
1862 ASSERT(dhd && (ifidx < DHD_MAX_IFS));
1863
1864 ifp = dhd->iflist[ifidx];
1865 if (!ifp && !(ifp = MALLOC(dhd->pub.osh, sizeof(dhd_if_t)))) {
1866 DHD_ERROR(("%s: OOM - dhd_if_t\n", __func__));
1867 return -ENOMEM;
1868 }
1869
1870 memset(ifp, 0, sizeof(dhd_if_t));
1871 ifp->info = dhd;
1872 dhd->iflist[ifidx] = ifp;
1873 strncpy(ifp->name, name, IFNAMSIZ);
1874 ifp->name[IFNAMSIZ] = '\0';
1875 if (mac_addr != NULL)
1876 memcpy(&ifp->mac_addr, mac_addr, ETHER_ADDR_LEN);
1877
1878 if (handle == NULL) {
1879 ifp->state = WLC_E_IF_ADD;
1880 ifp->idx = ifidx;
1881 ASSERT(dhd->sysioc_pid >= 0);
1882 up(&dhd->sysioc_sem);
1883 } else
1884 ifp->net = (struct net_device *)handle;
1885
1886 return 0;
1887}
1888
1889void dhd_del_if(dhd_info_t *dhd, int ifidx)
1890{
1891 dhd_if_t *ifp;
1892
1893 DHD_TRACE(("%s: idx %d\n", __func__, ifidx));
1894
1895 ASSERT(dhd && ifidx && (ifidx < DHD_MAX_IFS));
1896 ifp = dhd->iflist[ifidx];
1897 if (!ifp) {
1898 DHD_ERROR(("%s: Null interface\n", __func__));
1899 return;
1900 }
1901
1902 ifp->state = WLC_E_IF_DEL;
1903 ifp->idx = ifidx;
1904 ASSERT(dhd->sysioc_pid >= 0);
1905 up(&dhd->sysioc_sem);
1906}
1907
1908dhd_pub_t *dhd_attach(osl_t *osh, struct dhd_bus *bus, uint bus_hdrlen)
1909{
1910 dhd_info_t *dhd = NULL;
1911 struct net_device *net;
1912
1913 DHD_TRACE(("%s: Enter\n", __func__));
1914 /* updates firmware nvram path if it was provided as module
1915 paramters */
1916 if ((firmware_path != NULL) && (firmware_path[0] != '\0'))
1917 strcpy(fw_path, firmware_path);
1918 if ((nvram_path != NULL) && (nvram_path[0] != '\0'))
1919 strcpy(nv_path, nvram_path);
1920
1921 /* Allocate etherdev, including space for private structure */
a618cc28
JC		 1922 net = alloc_etherdev(sizeof(dhd));
1923 if (!net) {
cf2b4488
HP		 1924 DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
1925 goto fail;
1926 }
1927
1928 /* Allocate primary dhd_info */
a618cc28
JC		 1929 dhd = MALLOC(osh, sizeof(dhd_info_t));
1930 if (!dhd) {
cf2b4488
HP		 1931 DHD_ERROR(("%s: OOM - alloc dhd_info\n", __func__));
1932 goto fail;
1933 }
1934
1935 memset(dhd, 0, sizeof(dhd_info_t));
1936
1937 /*
1938 * Save the dhd_info into the priv
1939 */
1940 memcpy(netdev_priv(net), &dhd, sizeof(dhd));
1941 dhd->pub.osh = osh;
1942
1943 /* Set network interface name if it was provided as module parameter */
1944 if (iface_name[0]) {
1945 int len;
1946 char ch;
1947 strncpy(net->name, iface_name, IFNAMSIZ);
1948 net->name[IFNAMSIZ - 1] = 0;
1949 len = strlen(net->name);
1950 ch = net->name[len - 1];
1951 if ((ch > '9' || ch < '0') && (len < IFNAMSIZ - 2))
1952 strcat(net->name, "%d");
1953 }
1954
1955 if (dhd_add_if(dhd, 0, (void *)net, net->name, NULL, 0, 0) ==
1956 DHD_BAD_IF)
1957 goto fail;
1958
1959 net->netdev_ops = NULL;
1960 init_MUTEX(&dhd->proto_sem);
1961 /* Initialize other structure content */
1962 init_waitqueue_head(&dhd->ioctl_resp_wait);
1963 init_waitqueue_head(&dhd->ctrl_wait);
1964
1965 /* Initialize the spinlocks */
1966 spin_lock_init(&dhd->sdlock);
1967 spin_lock_init(&dhd->txqlock);
1968
1969 /* Link to info module */
1970 dhd->pub.info = dhd;
1971
1972 /* Link to bus module */
1973 dhd->pub.bus = bus;
1974 dhd->pub.hdrlen = bus_hdrlen;
1975
1976 /* Attach and link in the protocol */
1977 if (dhd_prot_attach(&dhd->pub) != 0) {
1978 DHD_ERROR(("dhd_prot_attach failed\n"));
1979 goto fail;
1980 }
1981#if defined(CONFIG_WIRELESS_EXT)
1982 /* Attach and link in the iw */
1983 if (wl_iw_attach(net, (void *)&dhd->pub) != 0) {
1984 DHD_ERROR(("wl_iw_attach failed\n"));
1985 goto fail;
1986 }
1987#endif /* defined(CONFIG_WIRELESS_EXT) */
1988
1989#ifdef CONFIG_CFG80211
1990 /* Attach and link in the cfg80211 */
1991 if (IS_CFG80211_FAVORITE()) {
1992 if (unlikely(wl_cfg80211_attach(net, &dhd->pub))) {
1993 DHD_ERROR(("wl_cfg80211_attach failed\n"));
1994 goto fail;
1995 }
1996 if (!NO_FW_REQ()) {
1997 strcpy(fw_path, wl_cfg80211_get_fwname());
1998 strcpy(nv_path, wl_cfg80211_get_nvramname());
1999 }
2000 wl_cfg80211_dbg_level(DBG_CFG80211_GET());
2001 }
2002#endif
2003
2004 /* Set up the watchdog timer */
2005 init_timer(&dhd->timer);
3deea904 2006 dhd->timer.data = (unsigned long) dhd;
cf2b4488
HP		 2007 dhd->timer.function = dhd_watchdog;
2008
2009 /* Initialize thread based operation and lock */
2010 init_MUTEX(&dhd->sdsem);
2011 if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0))
2012 dhd->threads_only = TRUE;
2013 else
2014 dhd->threads_only = FALSE;
2015
2016 if (dhd_dpc_prio >= 0) {
2017 /* Initialize watchdog thread */
2018 sema_init(&dhd->watchdog_sem, 0);
2019 init_completion(&dhd->watchdog_exited);
2020 dhd->watchdog_pid = kernel_thread(dhd_watchdog_thread, dhd, 0);
2021 } else {
2022 dhd->watchdog_pid = -1;
2023 }
2024
2025 /* Set up the bottom half handler */
2026 if (dhd_dpc_prio >= 0) {
2027 /* Initialize DPC thread */
2028 sema_init(&dhd->dpc_sem, 0);
2029 init_completion(&dhd->dpc_exited);
2030 dhd->dpc_pid = kernel_thread(dhd_dpc_thread, dhd, 0);
2031 } else {
3deea904 2032 tasklet_init(&dhd->tasklet, dhd_dpc, (unsigned long) dhd);
cf2b4488
HP		 2033 dhd->dpc_pid = -1;
2034 }
2035
2036 if (dhd_sysioc) {
2037 sema_init(&dhd->sysioc_sem, 0);
2038 init_completion(&dhd->sysioc_exited);
2039 dhd->sysioc_pid = kernel_thread(_dhd_sysioc_thread, dhd, 0);
2040 } else {
2041 dhd->sysioc_pid = -1;
2042 }
2043
2044 /*
2045 * Save the dhd_info into the priv
2046 */
2047 memcpy(netdev_priv(net), &dhd, sizeof(dhd));
2048
2049#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2050 g_bus = bus;
2051#endif
2052#if defined(CONFIG_PM_SLEEP)
2053 register_pm_notifier(&dhd_sleep_pm_notifier);
2054#endif /* defined(CONFIG_PM_SLEEP) */
2055 /* && defined(DHD_GPL) */
2056 /* Init lock suspend to prevent kernel going to suspend */
2057 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_TMOUT, "dhd_wake_lock");
2058 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_LINK_DOWN_TMOUT,
2059 "dhd_wake_lock_link_dw_event");
2060 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_PNO_FIND_TMOUT,
2061 "dhd_wake_lock_link_pno_find_event");
2062#ifdef CONFIG_HAS_EARLYSUSPEND
2063 dhd->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 20;
2064 dhd->early_suspend.suspend = dhd_early_suspend;
2065 dhd->early_suspend.resume = dhd_late_resume;
2066 register_early_suspend(&dhd->early_suspend);
2067#endif
2068
2069 return &dhd->pub;
2070
2071fail:
2072 if (net)
2073 free_netdev(net);
2074 if (dhd)
2075 dhd_detach(&dhd->pub);
2076
2077 return NULL;
2078}
2079
2080int dhd_bus_start(dhd_pub_t *dhdp)
2081{
2082 int ret = -1;
2083 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
2084#ifdef EMBEDDED_PLATFORM
2085 char iovbuf[WL_EVENTING_MASK_LEN + 12]; /* Room for "event_msgs" +
2086 '\0' + bitvec */
2087#endif /* EMBEDDED_PLATFORM */
2088
2089 ASSERT(dhd);
2090
2091 DHD_TRACE(("%s:\n", __func__));
2092
2093 /* try to download image and nvram to the dongle */
2094 if (dhd->pub.busstate == DHD_BUS_DOWN) {
2095 WAKE_LOCK_INIT(dhdp, WAKE_LOCK_DOWNLOAD, "dhd_bus_start");
2096 WAKE_LOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2097 if (!(dhd_bus_download_firmware(dhd->pub.bus, dhd->pub.osh,
2098 fw_path, nv_path))) {
2099 DHD_ERROR(("%s: dhdsdio_probe_download failed. "
2100 "firmware = %s nvram = %s\n",
2101 __func__, fw_path, nv_path));
2102 WAKE_UNLOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2103 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_DOWNLOAD);
2104 return -1;
2105 }
2106
2107 WAKE_UNLOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2108 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_DOWNLOAD);
2109 }
2110
2111 /* Start the watchdog timer */
2112 dhd->pub.tickcnt = 0;
2113 dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
2114
2115 /* Bring up the bus */
a618cc28
JC		 2116 ret = dhd_bus_init(&dhd->pub, TRUE);
2117 if (ret != 0) {
cf2b4488
HP		 2118 DHD_ERROR(("%s, dhd_bus_init failed %d\n", __func__, ret));
2119 return ret;
2120 }
2121#if defined(OOB_INTR_ONLY)
2122 /* Host registration for OOB interrupt */
2123 if (bcmsdh_register_oob_intr(dhdp)) {
2124 del_timer_sync(&dhd->timer);
2125 dhd->wd_timer_valid = FALSE;
2126 DHD_ERROR(("%s Host failed to resgister for OOB\n", __func__));
2127 return -ENODEV;
2128 }
2129
2130 /* Enable oob at firmware */
2131 dhd_enable_oob_intr(dhd->pub.bus, TRUE);
2132#endif /* defined(OOB_INTR_ONLY) */
2133
2134 /* If bus is not ready, can't come up */
2135 if (dhd->pub.busstate != DHD_BUS_DATA) {
2136 del_timer_sync(&dhd->timer);
2137 dhd->wd_timer_valid = FALSE;
2138 DHD_ERROR(("%s failed bus is not ready\n", __func__));
2139 return -ENODEV;
2140 }
2141#ifdef EMBEDDED_PLATFORM
2142 bcm_mkiovar("event_msgs", dhdp->eventmask, WL_EVENTING_MASK_LEN, iovbuf,
2143 sizeof(iovbuf));
2144 dhdcdc_query_ioctl(dhdp, 0, WLC_GET_VAR, iovbuf, sizeof(iovbuf));
2145 bcopy(iovbuf, dhdp->eventmask, WL_EVENTING_MASK_LEN);
2146
2147 setbit(dhdp->eventmask, WLC_E_SET_SSID);
2148 setbit(dhdp->eventmask, WLC_E_PRUNE);
2149 setbit(dhdp->eventmask, WLC_E_AUTH);
2150 setbit(dhdp->eventmask, WLC_E_REASSOC);
2151 setbit(dhdp->eventmask, WLC_E_REASSOC_IND);
2152 setbit(dhdp->eventmask, WLC_E_DEAUTH_IND);
2153 setbit(dhdp->eventmask, WLC_E_DISASSOC_IND);
2154 setbit(dhdp->eventmask, WLC_E_DISASSOC);
2155 setbit(dhdp->eventmask, WLC_E_JOIN);
2156 setbit(dhdp->eventmask, WLC_E_ASSOC_IND);
2157 setbit(dhdp->eventmask, WLC_E_PSK_SUP);
2158 setbit(dhdp->eventmask, WLC_E_LINK);
2159 setbit(dhdp->eventmask, WLC_E_NDIS_LINK);
2160 setbit(dhdp->eventmask, WLC_E_MIC_ERROR);
2161 setbit(dhdp->eventmask, WLC_E_PMKID_CACHE);
2162 setbit(dhdp->eventmask, WLC_E_TXFAIL);
2163 setbit(dhdp->eventmask, WLC_E_JOIN_START);
2164 setbit(dhdp->eventmask, WLC_E_SCAN_COMPLETE);
2165#ifdef PNO_SUPPORT
2166 setbit(dhdp->eventmask, WLC_E_PFN_NET_FOUND);
2167#endif /* PNO_SUPPORT */
2168
2169/* enable dongle roaming event */
2170
2171 dhdp->pktfilter_count = 1;
2172 /* Setup filter to allow only unicast */
2173 dhdp->pktfilter[0] = "100 0 0 0 0x01 0x00";
2174#endif /* EMBEDDED_PLATFORM */
2175
2176 /* Bus is ready, do any protocol initialization */
a618cc28
JC		 2177 ret = dhd_prot_init(&dhd->pub);
2178 if (ret < 0)
cf2b4488
HP		 2179 return ret;
2180
2181 return 0;
2182}
2183
2184int
2185dhd_iovar(dhd_pub_t *pub, int ifidx, char *name, char *cmd_buf, uint cmd_len,
2186 int set)
2187{
2188 char buf[strlen(name) + 1 + cmd_len];
2189 int len = sizeof(buf);
2190 wl_ioctl_t ioc;
2191 int ret;
2192
2193 len = bcm_mkiovar(name, cmd_buf, cmd_len, buf, len);
2194
2195 memset(&ioc, 0, sizeof(ioc));
2196
2197 ioc.cmd = set ? WLC_SET_VAR : WLC_GET_VAR;
2198 ioc.buf = buf;
2199 ioc.len = len;
2200 ioc.set = set;
2201
2202 ret = dhd_prot_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);
2203 if (!set && ret >= 0)
2204 memcpy(cmd_buf, buf, cmd_len);
2205
2206 return ret;
2207}
2208
2209static struct net_device_ops dhd_ops_pri = {
2210 .ndo_open = dhd_open,
2211 .ndo_stop = dhd_stop,
2212 .ndo_get_stats = dhd_get_stats,
2213 .ndo_do_ioctl = dhd_ioctl_entry,
2214 .ndo_start_xmit = dhd_start_xmit,
2215 .ndo_set_mac_address = dhd_set_mac_address,
2216 .ndo_set_multicast_list = dhd_set_multicast_list
2217};
2218
2219static struct net_device_ops dhd_ops_virt = {
2220 .ndo_get_stats = dhd_get_stats,
2221 .ndo_do_ioctl = dhd_ioctl_entry,
2222 .ndo_start_xmit = dhd_start_xmit,
2223 .ndo_set_mac_address = dhd_set_mac_address,
2224 .ndo_set_multicast_list = dhd_set_multicast_list
2225};
2226
2227int dhd_net_attach(dhd_pub_t *dhdp, int ifidx)
2228{
2229 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
2230 struct net_device *net;
3fd79f7c 2231 u8 temp_addr[ETHER_ADDR_LEN] = {
cf2b4488
HP		 2232 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33};
2233
2234 DHD_TRACE(("%s: ifidx %d\n", __func__, ifidx));
2235
2236 ASSERT(dhd && dhd->iflist[ifidx]);
2237
2238 net = dhd->iflist[ifidx]->net;
2239 ASSERT(net);
2240
2241 ASSERT(!net->netdev_ops);
2242 net->netdev_ops = &dhd_ops_virt;
2243
2244 net->netdev_ops = &dhd_ops_pri;
2245
2246 /*
2247 * We have to use the primary MAC for virtual interfaces
2248 */
2249 if (ifidx != 0) {
2250 /* for virtual interfaces use the primary MAC */
2251 memcpy(temp_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
2252
2253 }
2254
2255 if (ifidx == 1) {
2256 DHD_TRACE(("%s ACCESS POINT MAC: \n", __func__));
2257 /* ACCESSPOINT INTERFACE CASE */
2258 temp_addr[0] |= 0X02; /* set bit 2 ,
2259 - Locally Administered address */
2260
2261 }
2262 net->hard_header_len = ETH_HLEN + dhd->pub.hdrlen;
2263 net->ethtool_ops = &dhd_ethtool_ops;
2264
2265#if defined(CONFIG_WIRELESS_EXT)
2266#if defined(CONFIG_CFG80211)
2267 if (!IS_CFG80211_FAVORITE()) {
2268#endif
2269#if WIRELESS_EXT < 19
2270 net->get_wireless_stats = dhd_get_wireless_stats;
2271#endif /* WIRELESS_EXT < 19 */
2272#if WIRELESS_EXT > 12
2273 net->wireless_handlers =
2274 (struct iw_handler_def *)&wl_iw_handler_def;
2275#endif /* WIRELESS_EXT > 12 */
2276#if defined(CONFIG_CFG80211)
2277 }
2278#endif
2279#endif /* defined(CONFIG_WIRELESS_EXT) */
2280
2281 dhd->pub.rxsz = net->mtu + net->hard_header_len + dhd->pub.hdrlen;
2282
2283 memcpy(net->dev_addr, temp_addr, ETHER_ADDR_LEN);
2284
2285 if (register_netdev(net) != 0) {
2286 DHD_ERROR(("%s: couldn't register the net device\n",
2287 __func__));
2288 goto fail;
2289 }
2290
2291 printf("%s: Broadcom Dongle Host Driver\n", net->name);
2292
2293 return 0;
2294
2295fail:
2296 net->netdev_ops = NULL;
2297 return BCME_ERROR;
2298}
2299
2300void dhd_bus_detach(dhd_pub_t *dhdp)
2301{
2302 dhd_info_t *dhd;
2303
2304 DHD_TRACE(("%s: Enter\n", __func__));
2305
2306 if (dhdp) {
2307 dhd = (dhd_info_t *) dhdp->info;
2308 if (dhd) {
2309 /* Stop the protocol module */
2310 dhd_prot_stop(&dhd->pub);
2311
2312 /* Stop the bus module */
2313 dhd_bus_stop(dhd->pub.bus, TRUE);
2314#if defined(OOB_INTR_ONLY)
2315 bcmsdh_unregister_oob_intr();
2316#endif /* defined(OOB_INTR_ONLY) */
2317
2318 /* Clear the watchdog timer */
2319 del_timer_sync(&dhd->timer);
2320 dhd->wd_timer_valid = FALSE;
2321 }
2322 }
2323}
2324
2325void dhd_detach(dhd_pub_t *dhdp)
2326{
2327 dhd_info_t *dhd;
2328
2329 DHD_TRACE(("%s: Enter\n", __func__));
2330
2331 if (dhdp) {
2332 dhd = (dhd_info_t *) dhdp->info;
2333 if (dhd) {
2334 dhd_if_t *ifp;
2335 int i;
2336
2337#if defined(CONFIG_HAS_EARLYSUSPEND)
2338 if (dhd->early_suspend.suspend)
2339 unregister_early_suspend(&dhd->early_suspend);
2340#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
2341
2342 for (i = 1; i < DHD_MAX_IFS; i++)
2343 if (dhd->iflist[i])
2344 dhd_del_if(dhd, i);
2345
2346 ifp = dhd->iflist[0];
2347 ASSERT(ifp);
2348 if (ifp->net->netdev_ops == &dhd_ops_pri) {
2349 dhd_stop(ifp->net);
2350 unregister_netdev(ifp->net);
2351 }
2352
2353 if (dhd->watchdog_pid >= 0) {
2354 KILL_PROC(dhd->watchdog_pid, SIGTERM);
2355 wait_for_completion(&dhd->watchdog_exited);
2356 }
2357
2358 if (dhd->dpc_pid >= 0) {
2359 KILL_PROC(dhd->dpc_pid, SIGTERM);
2360 wait_for_completion(&dhd->dpc_exited);
2361 } else
2362 tasklet_kill(&dhd->tasklet);
2363
2364 if (dhd->sysioc_pid >= 0) {
2365 KILL_PROC(dhd->sysioc_pid, SIGTERM);
2366 wait_for_completion(&dhd->sysioc_exited);
2367 }
2368
2369 dhd_bus_detach(dhdp);
2370
2371 if (dhdp->prot)
2372 dhd_prot_detach(dhdp);
2373
2374#if defined(CONFIG_WIRELESS_EXT)
2375 wl_iw_detach();
2376#endif /* (CONFIG_WIRELESS_EXT) */
2377
2378#ifdef CONFIG_CFG80211
2379 if (IS_CFG80211_FAVORITE())
2380 wl_cfg80211_detach();
2381#endif /* CONFIG_CFG80211 */
2382
2383#if defined(CONFIG_PM_SLEEP)
2384 unregister_pm_notifier(&dhd_sleep_pm_notifier);
2385#endif /* defined(CONFIG_PM_SLEEP) */
2386 /* && defined(DHD_GPL) */
2387 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_TMOUT);
2388 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_LINK_DOWN_TMOUT);
2389 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_PNO_FIND_TMOUT);
2390 free_netdev(ifp->net);
2391 MFREE(dhd->pub.osh, ifp, sizeof(*ifp));
2392 MFREE(dhd->pub.osh, dhd, sizeof(*dhd));
2393 }
2394 }
2395}
2396
2397static void __exit dhd_module_cleanup(void)
2398{
2399 DHD_TRACE(("%s: Enter\n", __func__));
2400
2401 dhd_bus_unregister();
2402#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2403 wifi_del_dev();
2404#endif
2405 /* Call customer gpio to turn off power with WL_REG_ON signal */
2406 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
2407}
2408
2409static int __init dhd_module_init(void)
2410{
2411 int error;
2412
2413 DHD_TRACE(("%s: Enter\n", __func__));
2414
2415 /* Sanity check on the module parameters */
2416 do {
2417 /* Both watchdog and DPC as tasklets are ok */
2418 if ((dhd_watchdog_prio < 0) && (dhd_dpc_prio < 0))
2419 break;
2420
2421 /* If both watchdog and DPC are threads, TX must be deferred */
2422 if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0)
2423 && dhd_deferred_tx)
2424 break;
2425
2426 DHD_ERROR(("Invalid module parameters.\n"));
2427 return -EINVAL;
2428 } while (0);
2429 /* Call customer gpio to turn on power with WL_REG_ON signal */
2430 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_ON);
2431
2432#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2433 sema_init(&wifi_control_sem, 0);
2434
2435 error = wifi_add_dev();
2436 if (error) {
2437 DHD_ERROR(("%s: platform_driver_register failed\n", __func__));
2438 goto faild;
2439 }
2440
2441 /* Waiting callback after platform_driver_register is done or
2442 exit with error */
2443 if (down_timeout(&wifi_control_sem, msecs_to_jiffies(1000)) != 0) {
2444 printk(KERN_ERR "%s: platform_driver_register timeout\n",
2445 __func__);
2446 /* remove device */
2447 wifi_del_dev();
2448 goto faild;
2449 }
2450#endif /* #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
2451
2452 error = dhd_bus_register();
2453
2454 if (!error)
2455 printf("\n%s\n", dhd_version);
2456 else {
2457 DHD_ERROR(("%s: sdio_register_driver failed\n", __func__));
2458 goto faild;
2459 }
2460 return error;
2461
2462faild:
2463 /* turn off power and exit */
2464 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
2465 return -EINVAL;
2466}
2467
2468module_init(dhd_module_init);
2469module_exit(dhd_module_cleanup);
2470
2471/*
2472 * OS specific functions required to implement DHD driver in OS independent way
2473 */
2474int dhd_os_proto_block(dhd_pub_t *pub)
2475{
2476 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2477
2478 if (dhd) {
2479 down(&dhd->proto_sem);
2480 return 1;
2481 }
2482 return 0;
2483}
2484
2485int dhd_os_proto_unblock(dhd_pub_t *pub)
2486{
2487 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2488
2489 if (dhd) {
2490 up(&dhd->proto_sem);
2491 return 1;
2492 }
2493
2494 return 0;
2495}
2496
2497unsigned int dhd_os_get_ioctl_resp_timeout(void)
2498{
2499 return (unsigned int)dhd_ioctl_timeout_msec;
2500}
2501
2502void dhd_os_set_ioctl_resp_timeout(unsigned int timeout_msec)
2503{
2504 dhd_ioctl_timeout_msec = (int)timeout_msec;
2505}
2506
2507int dhd_os_ioctl_resp_wait(dhd_pub_t *pub, uint *condition, bool *pending)
2508{
2509 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2510 DECLARE_WAITQUEUE(wait, current);
2511 int timeout = dhd_ioctl_timeout_msec;
2512
2513 /* Convert timeout in millsecond to jiffies */
2514 timeout = timeout * HZ / 1000;
2515
2516 /* Wait until control frame is available */
2517 add_wait_queue(&dhd->ioctl_resp_wait, &wait);
2518 set_current_state(TASK_INTERRUPTIBLE);
2519
2520 while (!(*condition) && (!signal_pending(current) && timeout))
2521 timeout = schedule_timeout(timeout);
2522
2523 if (signal_pending(current))
2524 *pending = TRUE;
2525
2526 set_current_state(TASK_RUNNING);
2527 remove_wait_queue(&dhd->ioctl_resp_wait, &wait);
2528
2529 return timeout;
2530}
2531
2532int dhd_os_ioctl_resp_wake(dhd_pub_t *pub)
2533{
2534 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2535
2536 if (waitqueue_active(&dhd->ioctl_resp_wait))
2537 wake_up_interruptible(&dhd->ioctl_resp_wait);
2538
2539 return 0;
2540}
2541
2542void dhd_os_wd_timer(void *bus, uint wdtick)
2543{
2544 dhd_pub_t *pub = bus;
5f782dee 2545 static uint save_dhd_watchdog_ms;
cf2b4488
HP		 2546 dhd_info_t *dhd = (dhd_info_t *) pub->info;
2547
2548 /* don't start the wd until fw is loaded */
2549 if (pub->busstate == DHD_BUS_DOWN)
2550 return;
2551
2552 /* Totally stop the timer */
2553 if (!wdtick && dhd->wd_timer_valid == TRUE) {
2554 del_timer_sync(&dhd->timer);
2555 dhd->wd_timer_valid = FALSE;
2556 save_dhd_watchdog_ms = wdtick;
2557 return;
2558 }
2559
2560 if (wdtick) {
2561 dhd_watchdog_ms = (uint) wdtick;
2562
2563 if (save_dhd_watchdog_ms != dhd_watchdog_ms) {
2564
2565 if (dhd->wd_timer_valid == TRUE)
2566 /* Stop timer and restart at new value */
2567 del_timer_sync(&dhd->timer);
2568
2569 /* Create timer again when watchdog period is
2570 dynamically changed or in the first instance
2571 */
2572 dhd->timer.expires =
2573 jiffies + dhd_watchdog_ms * HZ / 1000;
2574 add_timer(&dhd->timer);
2575
2576 } else {
2577 /* Re arm the timer, at last watchdog period */
2578 mod_timer(&dhd->timer,
2579 jiffies + dhd_watchdog_ms * HZ / 1000);
2580 }
2581
2582 dhd->wd_timer_valid = TRUE;
2583 save_dhd_watchdog_ms = wdtick;
2584 }
2585}
2586
2587void *dhd_os_open_image(char *filename)
2588{
2589 struct file *fp;
2590
2591#ifdef CONFIG_CFG80211
2592 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2593 return wl_cfg80211_request_fw(filename);
2594#endif
2595
2596 fp = filp_open(filename, O_RDONLY, 0);
2597 /*
2598 * 2.6.11 (FC4) supports filp_open() but later revs don't?
2599 * Alternative:
2600 * fp = open_namei(AT_FDCWD, filename, O_RD, 0);
2601 * ???
2602 */
2603 if (IS_ERR(fp))
2604 fp = NULL;
2605
2606 return fp;
2607}
2608
2609int dhd_os_get_image_block(char *buf, int len, void *image)
2610{
2611 struct file *fp = (struct file *)image;
2612 int rdlen;
2613
2614#ifdef CONFIG_CFG80211
2615 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2616 return wl_cfg80211_read_fw(buf, len);
2617#endif
2618
2619 if (!image)
2620 return 0;
2621
2622 rdlen = kernel_read(fp, fp->f_pos, buf, len);
2623 if (rdlen > 0)
2624 fp->f_pos += rdlen;
2625
2626 return rdlen;
2627}
2628
2629void dhd_os_close_image(void *image)
2630{
2631#ifdef CONFIG_CFG80211
2632 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2633 return wl_cfg80211_release_fw();
2634#endif
2635 if (image)
2636 filp_close((struct file *)image, NULL);
2637}
2638
2639void dhd_os_sdlock(dhd_pub_t *pub)
2640{
2641 dhd_info_t *dhd;
2642
2643 dhd = (dhd_info_t *) (pub->info);
2644
2645 if (dhd->threads_only)
2646 down(&dhd->sdsem);
2647 else
2648 spin_lock_bh(&dhd->sdlock);
2649}
2650
2651void dhd_os_sdunlock(dhd_pub_t *pub)
2652{
2653 dhd_info_t *dhd;
2654
2655 dhd = (dhd_info_t *) (pub->info);
2656
2657 if (dhd->threads_only)
2658 up(&dhd->sdsem);
2659 else
2660 spin_unlock_bh(&dhd->sdlock);
2661}
2662
2663void dhd_os_sdlock_txq(dhd_pub_t *pub)
2664{
2665 dhd_info_t *dhd;
2666
2667 dhd = (dhd_info_t *) (pub->info);
2668 spin_lock_bh(&dhd->txqlock);
2669}
2670
2671void dhd_os_sdunlock_txq(dhd_pub_t *pub)
2672{
2673 dhd_info_t *dhd;
2674
2675 dhd = (dhd_info_t *) (pub->info);
2676 spin_unlock_bh(&dhd->txqlock);
2677}
2678
2679void dhd_os_sdlock_rxq(dhd_pub_t *pub)
2680{
2681}
2682
2683void dhd_os_sdunlock_rxq(dhd_pub_t *pub)
2684{
2685}
2686
2687void dhd_os_sdtxlock(dhd_pub_t *pub)
2688{
2689 dhd_os_sdlock(pub);
2690}
2691
2692void dhd_os_sdtxunlock(dhd_pub_t *pub)
2693{
2694 dhd_os_sdunlock(pub);
2695}
2696
2697#ifdef DHD_USE_STATIC_BUF
2698void *dhd_os_prealloc(int section, unsigned long size)
2699{
2700#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2701 void *alloc_ptr = NULL;
2702 if (wifi_control_data && wifi_control_data->mem_prealloc) {
2703 alloc_ptr = wifi_control_data->mem_prealloc(section, size);
2704 if (alloc_ptr) {
2705 DHD_INFO(("success alloc section %d\n", section));
2706 bzero(alloc_ptr, size);
2707 return alloc_ptr;
2708 }
2709 }
2710
2711 DHD_ERROR(("can't alloc section %d\n", section));
2712 return 0;
2713#else
2714 return MALLOC(0, size);
2715#endif /* #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
2716}
2717#endif /* DHD_USE_STATIC_BUF */
2718#if defined(CONFIG_WIRELESS_EXT)
2719struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev)
2720{
2721 int res = 0;
2722 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2723
2724 res = wl_iw_get_wireless_stats(dev, &dhd->iw.wstats);
2725
2726 if (res == 0)
2727 return &dhd->iw.wstats;
2728 else
2729 return NULL;
2730}
2731#endif /* defined(CONFIG_WIRELESS_EXT) */
2732
2733static int
2734dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
2735 wl_event_msg_t *event, void **data)
2736{
2737 int bcmerror = 0;
2738
2739 ASSERT(dhd != NULL);
2740
2741 bcmerror = wl_host_event(dhd, ifidx, pktdata, event, data);
2742 if (bcmerror != BCME_OK)
2743 return bcmerror;
2744
2745#if defined(CONFIG_WIRELESS_EXT)
2746#if defined(CONFIG_CFG80211)
2747 if (!IS_CFG80211_FAVORITE()) {
2748#endif
2749 if ((dhd->iflist[*ifidx] == NULL)
2750 || (dhd->iflist[*ifidx]->net == NULL)) {
2751 DHD_ERROR(("%s Exit null pointer\n", __func__));
2752 return bcmerror;
2753 }
2754
2755 if (dhd->iflist[*ifidx]->net)
2756 wl_iw_event(dhd->iflist[*ifidx]->net, event, *data);
2757#if defined(CONFIG_CFG80211)
2758 }
2759#endif
2760#endif /* defined(CONFIG_WIRELESS_EXT) */
2761
2762#ifdef CONFIG_CFG80211
2763 if (IS_CFG80211_FAVORITE()) {
2764 ASSERT(dhd->iflist[*ifidx] != NULL);
2765 ASSERT(dhd->iflist[*ifidx]->net != NULL);
2766 if (dhd->iflist[*ifidx]->net)
2767 wl_cfg80211_event(dhd->iflist[*ifidx]->net, event,
2768 *data);
2769 }
2770#endif
2771
2772 return bcmerror;
2773}
2774
2775/* send up locally generated event */
2776void dhd_sendup_event(dhd_pub_t *dhdp, wl_event_msg_t *event, void *data)
2777{
2778 switch (ntoh32(event->event_type)) {
2779 default:
2780 break;
2781 }
2782}
2783
2784void dhd_wait_for_event(dhd_pub_t *dhd, bool *lockvar)
2785{
2786 struct dhd_info *dhdinfo = dhd->info;
2787 dhd_os_sdunlock(dhd);
2788 wait_event_interruptible_timeout(dhdinfo->ctrl_wait,
2789 (*lockvar == FALSE), HZ * 2);
2790 dhd_os_sdlock(dhd);
2791 return;
2792}
2793
2794void dhd_wait_event_wakeup(dhd_pub_t *dhd)
2795{
2796 struct dhd_info *dhdinfo = dhd->info;
2797 if (waitqueue_active(&dhdinfo->ctrl_wait))
2798 wake_up_interruptible(&dhdinfo->ctrl_wait);
2799 return;
2800}
2801
3fd79f7c 2802int dhd_dev_reset(struct net_device *dev, u8 flag)
cf2b4488
HP		 2803{
2804 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2805
2806 /* Turning off watchdog */
2807 if (flag)
2808 dhd_os_wd_timer(&dhd->pub, 0);
2809
2810 dhd_bus_devreset(&dhd->pub, flag);
2811
2812 /* Turning on watchdog back */
2813 if (!flag)
2814 dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
2815 DHD_ERROR(("%s: WLAN OFF DONE\n", __func__));
2816
2817 return 1;
2818}
2819
2820int net_os_set_suspend_disable(struct net_device *dev, int val)
2821{
2822 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2823 int ret = 0;
2824
2825 if (dhd) {
2826 ret = dhd->pub.suspend_disable_flag;
2827 dhd->pub.suspend_disable_flag = val;
2828 }
2829 return ret;
2830}
2831
2832int net_os_set_suspend(struct net_device *dev, int val)
2833{
2834 int ret = 0;
2835#if defined(CONFIG_HAS_EARLYSUSPEND)
2836 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2837
2838 if (dhd) {
2839 dhd_os_proto_block(&dhd->pub);
2840 ret = dhd_set_suspend(val, &dhd->pub);
2841 dhd_os_proto_unblock(&dhd->pub);
2842 }
2843#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
2844 return ret;
2845}
2846
2847int net_os_set_dtim_skip(struct net_device *dev, int val)
2848{
2849 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2850
2851 if (dhd)
2852 dhd->pub.dtim_skip = val;
2853
2854 return 0;
2855}
2856
2857int net_os_set_packet_filter(struct net_device *dev, int val)
2858{
2859 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2860 int ret = 0;
2861
2862 /* Packet filtering is set only if we still in early-suspend and
2863 * we need either to turn it ON or turn it OFF
2864 * We can always turn it OFF in case of early-suspend, but we turn it
2865 * back ON only if suspend_disable_flag was not set
2866 */
2867 if (dhd && dhd->pub.up) {
2868 dhd_os_proto_block(&dhd->pub);
2869 if (dhd->pub.in_suspend) {
2870 if (!val || (val && !dhd->pub.suspend_disable_flag))
2871 dhd_set_packet_filter(val, &dhd->pub);
2872 }
2873 dhd_os_proto_unblock(&dhd->pub);
2874 }
2875 return ret;
2876}
2877
2878void dhd_dev_init_ioctl(struct net_device *dev)
2879{
2880 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2881
2882 dhd_preinit_ioctls(&dhd->pub);
2883}
2884
2885#ifdef PNO_SUPPORT
2886/* Linux wrapper to call common dhd_pno_clean */
2887int dhd_dev_pno_reset(struct net_device *dev)
2888{
2889 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2890
2891 return dhd_pno_clean(&dhd->pub);
2892}
2893
2894/* Linux wrapper to call common dhd_pno_enable */
2895int dhd_dev_pno_enable(struct net_device *dev, int pfn_enabled)
2896{
2897 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2898
2899 return dhd_pno_enable(&dhd->pub, pfn_enabled);
2900}
2901
2902/* Linux wrapper to call common dhd_pno_set */
2903int
2904dhd_dev_pno_set(struct net_device *dev, wlc_ssid_t *ssids_local, int nssid,
580a0bd9 2905 unsigned char scan_fr)
cf2b4488
HP		 2906{
2907 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2908
2909 return dhd_pno_set(&dhd->pub, ssids_local, nssid, scan_fr);
2910}
2911
2912/* Linux wrapper to get pno status */
2913int dhd_dev_get_pno_status(struct net_device *dev)
2914{
2915 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2916
2917 return dhd_pno_get_status(&dhd->pub);
2918}
2919
2920#endif /* PNO_SUPPORT */
2921
2922static int dhd_get_pend_8021x_cnt(dhd_info_t *dhd)
2923{
2924 return atomic_read(&dhd->pend_8021x_cnt);
2925}
2926
2927#define MAX_WAIT_FOR_8021X_TX 10
2928
2929int dhd_wait_pend8021x(struct net_device *dev)
2930{
2931 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2932 int timeout = 10 * HZ / 1000;
2933 int ntimes = MAX_WAIT_FOR_8021X_TX;
2934 int pend = dhd_get_pend_8021x_cnt(dhd);
2935
2936 while (ntimes && pend) {
2937 if (pend) {
2938 set_current_state(TASK_INTERRUPTIBLE);
2939 schedule_timeout(timeout);
2940 set_current_state(TASK_RUNNING);
2941 ntimes--;
2942 }
2943 pend = dhd_get_pend_8021x_cnt(dhd);
2944 }
2945 return pend;
2946}
2947
2948#ifdef DHD_DEBUG
3fd79f7c 2949int write_to_file(dhd_pub_t *dhd, u8 *buf, int size)
cf2b4488
HP		 2950{
2951 int ret = 0;
2952 struct file *fp;
2953 mm_segment_t old_fs;
2954 loff_t pos = 0;
2955
2956 /* change to KERNEL_DS address limit */
2957 old_fs = get_fs();
2958 set_fs(KERNEL_DS);
2959
2960 /* open file to write */
2961 fp = filp_open("/tmp/mem_dump", O_WRONLY | O_CREAT, 0640);
2962 if (!fp) {
2963 printf("%s: open file error\n", __func__);
2964 ret = -1;
2965 goto exit;
2966 }
2967
2968 /* Write buf to file */
2969 fp->f_op->write(fp, buf, size, &pos);
2970
2971exit:
2972 /* free buf before return */
2973 MFREE(dhd->osh, buf, size);
2974 /* close file before return */
2975 if (fp)
2976 filp_close(fp, current->files);
2977 /* restore previous address limit */
2978 set_fs(old_fs);
2979
2980 return ret;
2981}
2982#endif /* DHD_DEBUG */
kernel source for telekom puls (alcatel/mediatek)