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staging: brcm80211: replace MFREE with kfree
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / staging / brcm80211 / brcmfmac / dhd_linux.c
CommitLineData
cf2b4488
HP		 1/*
2 * Copyright (c) 2010 Broadcom Corporation
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#ifdef CONFIG_WIFI_CONTROL_FUNC
18#include <linux/platform_device.h>
19#endif
20#include <typedefs.h>
21#include <linuxver.h>
22#include <osl.h>
23
24#include <linux/init.h>
25#include <linux/kernel.h>
860708d9 26#include <linux/kthread.h>
cf2b4488
HP		 27#include <linux/slab.h>
28#include <linux/skbuff.h>
29#include <linux/netdevice.h>
30#include <linux/etherdevice.h>
93ad12cf 31#include <linux/mmc/sdio_func.h>
cf2b4488
HP		 32#include <linux/random.h>
33#include <linux/spinlock.h>
34#include <linux/ethtool.h>
35#include <linux/fcntl.h>
36#include <linux/fs.h>
37
93ad12cf 38#include <linux/uaccess.h>
cf2b4488
HP		 39#include <bcmutils.h>
40#include <bcmendian.h>
41
42#include <proto/ethernet.h>
43#include <dngl_stats.h>
44#include <dhd.h>
45#include <dhd_bus.h>
46#include <dhd_proto.h>
47#include <dhd_dbg.h>
48
cf2b4488 49#include <wl_cfg80211.h>
cf2b4488
HP		 50
51#define EPI_VERSION_STR "4.218.248.5"
52
53#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
54#include <linux/wifi_tiwlan.h>
55
56struct semaphore wifi_control_sem;
57
58struct dhd_bus *g_bus;
59
5f782dee
JC		 60static struct wifi_platform_data *wifi_control_data;
61static struct resource *wifi_irqres;
cf2b4488
HP		 62
63int wifi_get_irq_number(unsigned long *irq_flags_ptr)
64{
65 if (wifi_irqres) {
66 *irq_flags_ptr = wifi_irqres->flags & IRQF_TRIGGER_MASK;
67 return (int)wifi_irqres->start;
68 }
69#ifdef CUSTOM_OOB_GPIO_NUM
70 return CUSTOM_OOB_GPIO_NUM;
71#else
72 return -1;
73#endif
74}
75
76int wifi_set_carddetect(int on)
77{
78 printk(KERN_ERR "%s = %d\n", __func__, on);
79 if (wifi_control_data && wifi_control_data->set_carddetect)
80 wifi_control_data->set_carddetect(on);
81 return 0;
82}
83
84int wifi_set_power(int on, unsigned long msec)
85{
86 printk(KERN_ERR "%s = %d\n", __func__, on);
87 if (wifi_control_data && wifi_control_data->set_power)
88 wifi_control_data->set_power(on);
89 if (msec)
90 mdelay(msec);
91 return 0;
92}
93
94int wifi_set_reset(int on, unsigned long msec)
95{
96 printk(KERN_ERR "%s = %d\n", __func__, on);
97 if (wifi_control_data && wifi_control_data->set_reset)
98 wifi_control_data->set_reset(on);
99 if (msec)
100 mdelay(msec);
101 return 0;
102}
103
104static int wifi_probe(struct platform_device *pdev)
105{
106 struct wifi_platform_data *wifi_ctrl =
107 (struct wifi_platform_data *)(pdev->dev.platform_data);
108
109 printk(KERN_ERR "## %s\n", __func__);
110 wifi_irqres =
111 platform_get_resource_byname(pdev, IORESOURCE_IRQ,
112 "bcm4329_wlan_irq");
113 wifi_control_data = wifi_ctrl;
114
115 wifi_set_power(1, 0); /* Power On */
116 wifi_set_carddetect(1); /* CardDetect (0->1) */
117
118 up(&wifi_control_sem);
119 return 0;
120}
121
122static int wifi_remove(struct platform_device *pdev)
123{
124 struct wifi_platform_data *wifi_ctrl =
125 (struct wifi_platform_data *)(pdev->dev.platform_data);
126
127 printk(KERN_ERR "## %s\n", __func__);
128 wifi_control_data = wifi_ctrl;
129
130 wifi_set_carddetect(0); /* CardDetect (1->0) */
131 wifi_set_power(0, 0); /* Power Off */
132
133 up(&wifi_control_sem);
134 return 0;
135}
136
137static int wifi_suspend(struct platform_device *pdev, pm_message_t state)
138{
139 DHD_TRACE(("##> %s\n", __func__));
140 return 0;
141}
142
143static int wifi_resume(struct platform_device *pdev)
144{
145 DHD_TRACE(("##> %s\n", __func__));
146 return 0;
147}
148
149static struct platform_driver wifi_device = {
150 .probe = wifi_probe,
151 .remove = wifi_remove,
152 .suspend = wifi_suspend,
153 .resume = wifi_resume,
154 .driver = {
155 .name = "bcm4329_wlan",
156 }
157};
158
159int wifi_add_dev(void)
160{
161 DHD_TRACE(("## Calling platform_driver_register\n"));
162 return platform_driver_register(&wifi_device);
163}
164
165void wifi_del_dev(void)
166{
167 DHD_TRACE(("## Unregister platform_driver_register\n"));
168 platform_driver_unregister(&wifi_device);
169}
170#endif /* defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
171
172#if defined(CONFIG_PM_SLEEP)
173#include <linux/suspend.h>
0965ae88 174volatile bool dhd_mmc_suspend = false;
cf2b4488
HP		 175DECLARE_WAIT_QUEUE_HEAD(dhd_dpc_wait);
176#endif /* defined(CONFIG_PM_SLEEP) */
177
178#if defined(OOB_INTR_ONLY)
179extern void dhd_enable_oob_intr(struct dhd_bus *bus, bool enable);
180#endif /* defined(OOB_INTR_ONLY) */
181
182MODULE_AUTHOR("Broadcom Corporation");
183MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac driver.");
184MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac cards");
185MODULE_LICENSE("Dual BSD/GPL");
186
93ad12cf 187#define DRV_MODULE_NAME "brcmfmac"
188
cf2b4488
HP		 189/* Linux wireless extension support */
190#if defined(CONFIG_WIRELESS_EXT)
191#include <wl_iw.h>
192extern wl_iw_extra_params_t g_wl_iw_params;
193#endif /* defined(CONFIG_WIRELESS_EXT) */
194
195#if defined(CONFIG_HAS_EARLYSUSPEND)
196#include <linux/earlysuspend.h>
197extern int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf,
198 uint len);
199#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
200
201#ifdef PKT_FILTER_SUPPORT
202extern void dhd_pktfilter_offload_set(dhd_pub_t *dhd, char *arg);
203extern void dhd_pktfilter_offload_enable(dhd_pub_t *dhd, char *arg, int enable,
204 int master_mode);
205#endif
206
207/* Interface control information */
208typedef struct dhd_if {
209 struct dhd_info *info; /* back pointer to dhd_info */
210 /* OS/stack specifics */
211 struct net_device *net;
212 struct net_device_stats stats;
213 int idx; /* iface idx in dongle */
214 int state; /* interface state */
215 uint subunit; /* subunit */
3fd79f7c 216 u8 mac_addr[ETHER_ADDR_LEN]; /* assigned MAC address */
cf2b4488
HP		 217 bool attached; /* Delayed attachment when unset */
218 bool txflowcontrol; /* Per interface flow control indicator */
cbf6baac 219 char name[IFNAMSIZ]; /* linux interface name */
cf2b4488
HP		 220} dhd_if_t;
221
222/* Local private structure (extension of pub) */
223typedef struct dhd_info {
224#if defined(CONFIG_WIRELESS_EXT)
225 wl_iw_t iw; /* wireless extensions state (must be first) */
226#endif /* defined(CONFIG_WIRELESS_EXT) */
227
228 dhd_pub_t pub;
229
230 /* OS/stack specifics */
231 dhd_if_t *iflist[DHD_MAX_IFS];
232
233 struct semaphore proto_sem;
234 wait_queue_head_t ioctl_resp_wait;
235 struct timer_list timer;
236 bool wd_timer_valid;
237 struct tasklet_struct tasklet;
238 spinlock_t sdlock;
239 spinlock_t txqlock;
240 /* Thread based operation */
241 bool threads_only;
242 struct semaphore sdsem;
860708d9 243 struct task_struct *watchdog_tsk;
cf2b4488 244 struct semaphore watchdog_sem;
ecd7559d 245 struct task_struct *dpc_tsk;
cf2b4488 246 struct semaphore dpc_sem;
cf2b4488
HP		 247
248 /* Thread to issue ioctl for multicast */
d809dcb9 249 struct task_struct *sysioc_tsk;
cf2b4488 250 struct semaphore sysioc_sem;
cf2b4488
HP		 251 bool set_multicast;
252 bool set_macaddress;
253 struct ether_addr macvalue;
254 wait_queue_head_t ctrl_wait;
255 atomic_t pend_8021x_cnt;
256
257#ifdef CONFIG_HAS_EARLYSUSPEND
258 struct early_suspend early_suspend;
259#endif /* CONFIG_HAS_EARLYSUSPEND */
260} dhd_info_t;
261
262/* Definitions to provide path to the firmware and nvram
263 * example nvram_path[MOD_PARAM_PATHLEN]="/projects/wlan/nvram.txt"
264 */
265char firmware_path[MOD_PARAM_PATHLEN];
266char nvram_path[MOD_PARAM_PATHLEN];
267
268/* load firmware and/or nvram values from the filesystem */
269module_param_string(firmware_path, firmware_path, MOD_PARAM_PATHLEN, 0);
270module_param_string(nvram_path, nvram_path, MOD_PARAM_PATHLEN, 0);
271
272/* Error bits */
273module_param(dhd_msg_level, int, 0);
274
275/* Spawn a thread for system ioctls (set mac, set mcast) */
0f0881b0 276uint dhd_sysioc = true;
cf2b4488
HP		 277module_param(dhd_sysioc, uint, 0);
278
279/* Watchdog interval */
280uint dhd_watchdog_ms = 10;
281module_param(dhd_watchdog_ms, uint, 0);
282
283#ifdef DHD_DEBUG
284/* Console poll interval */
6998d337 285uint dhd_console_ms;
cf2b4488
HP		 286module_param(dhd_console_ms, uint, 0);
287#endif /* DHD_DEBUG */
288
289/* ARP offload agent mode : Enable ARP Host Auto-Reply
290and ARP Peer Auto-Reply */
291uint dhd_arp_mode = 0xb;
292module_param(dhd_arp_mode, uint, 0);
293
294/* ARP offload enable */
0f0881b0 295uint dhd_arp_enable = true;
cf2b4488
HP		 296module_param(dhd_arp_enable, uint, 0);
297
298/* Global Pkt filter enable control */
0f0881b0 299uint dhd_pkt_filter_enable = true;
cf2b4488
HP		 300module_param(dhd_pkt_filter_enable, uint, 0);
301
302/* Pkt filter init setup */
6998d337 303uint dhd_pkt_filter_init;
cf2b4488
HP		 304module_param(dhd_pkt_filter_init, uint, 0);
305
306/* Pkt filter mode control */
0f0881b0 307uint dhd_master_mode = true;
cf2b4488
HP		 308module_param(dhd_master_mode, uint, 1);
309
310/* Watchdog thread priority, -1 to use kernel timer */
311int dhd_watchdog_prio = 97;
312module_param(dhd_watchdog_prio, int, 0);
313
314/* DPC thread priority, -1 to use tasklet */
315int dhd_dpc_prio = 98;
316module_param(dhd_dpc_prio, int, 0);
317
318/* DPC thread priority, -1 to use tasklet */
319extern int dhd_dongle_memsize;
320module_param(dhd_dongle_memsize, int, 0);
321
322/* Contorl fw roaming */
323#ifdef CUSTOMER_HW2
6998d337 324uint dhd_roam;
cf2b4488
HP		 325#else
326uint dhd_roam = 1;
327#endif
328
329/* Control radio state */
330uint dhd_radio_up = 1;
331
332/* Network inteface name */
333char iface_name[IFNAMSIZ];
334module_param_string(iface_name, iface_name, IFNAMSIZ, 0);
335
cf2b4488
HP		 336/* The following are specific to the SDIO dongle */
337
338/* IOCTL response timeout */
339int dhd_ioctl_timeout_msec = IOCTL_RESP_TIMEOUT;
340
341/* Idle timeout for backplane clock */
342int dhd_idletime = DHD_IDLETIME_TICKS;
343module_param(dhd_idletime, int, 0);
344
345/* Use polling */
0965ae88 346uint dhd_poll = false;
cf2b4488
HP		 347module_param(dhd_poll, uint, 0);
348
cf2b4488 349/* Use cfg80211 */
0f0881b0 350uint dhd_cfg80211 = true;
cf2b4488 351module_param(dhd_cfg80211, uint, 0);
cf2b4488
HP		 352
353/* Use interrupts */
0f0881b0 354uint dhd_intr = true;
cf2b4488
HP		 355module_param(dhd_intr, uint, 0);
356
357/* SDIO Drive Strength (in milliamps) */
358uint dhd_sdiod_drive_strength = 6;
359module_param(dhd_sdiod_drive_strength, uint, 0);
360
361/* Tx/Rx bounds */
362extern uint dhd_txbound;
363extern uint dhd_rxbound;
364module_param(dhd_txbound, uint, 0);
365module_param(dhd_rxbound, uint, 0);
366
367/* Deferred transmits */
368extern uint dhd_deferred_tx;
369module_param(dhd_deferred_tx, uint, 0);
370
371#ifdef SDTEST
372/* Echo packet generator (pkts/s) */
6998d337 373uint dhd_pktgen;
cf2b4488
HP		 374module_param(dhd_pktgen, uint, 0);
375
376/* Echo packet len (0 => sawtooth, max 2040) */
6998d337 377uint dhd_pktgen_len;
cf2b4488
HP		 378module_param(dhd_pktgen_len, uint, 0);
379#endif
380
cf2b4488
HP		 381#define FAVORITE_WIFI_CP (!!dhd_cfg80211)
382#define IS_CFG80211_FAVORITE() FAVORITE_WIFI_CP
383#define DBG_CFG80211_GET() ((dhd_cfg80211 & WL_DBG_MASK) >> 1)
384#define NO_FW_REQ() (dhd_cfg80211 & 0x80)
cf2b4488
HP		 385
386/* Version string to report */
387#ifdef DHD_DEBUG
388#define DHD_COMPILED "\nCompiled in " SRCBASE
389#else
390#define DHD_COMPILED
391#endif
392
393static char dhd_version[] = "Dongle Host Driver, version " EPI_VERSION_STR
394#ifdef DHD_DEBUG
395"\nCompiled in " " on " __DATE__ " at " __TIME__
396#endif
397;
398
399#if defined(CONFIG_WIRELESS_EXT)
400struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev);
401#endif /* defined(CONFIG_WIRELESS_EXT) */
402
3deea904 403static void dhd_dpc(unsigned long data);
cf2b4488
HP		 404/* forward decl */
405extern int dhd_wait_pend8021x(struct net_device *dev);
406
407#ifdef TOE
408#ifndef BDC
409#error TOE requires BDC
410#endif /* !BDC */
66cbd3ab
GKH		 411static int dhd_toe_get(dhd_info_t *dhd, int idx, u32 *toe_ol);
412static int dhd_toe_set(dhd_info_t *dhd, int idx, u32 toe_ol);
cf2b4488
HP		 413#endif /* TOE */
414
415static int dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
416 wl_event_msg_t *event_ptr, void **data_ptr);
417
418#if defined(CONFIG_PM_SLEEP)
419static int dhd_sleep_pm_callback(struct notifier_block *nfb,
420 unsigned long action, void *ignored)
421{
422 switch (action) {
423 case PM_HIBERNATION_PREPARE:
424 case PM_SUSPEND_PREPARE:
0f0881b0 425 dhd_mmc_suspend = true;
cf2b4488
HP		 426 return NOTIFY_OK;
427 case PM_POST_HIBERNATION:
428 case PM_POST_SUSPEND:
0965ae88 429 dhd_mmc_suspend = false;
cf2b4488
HP		 430 return NOTIFY_OK;
431 }
432 return 0;
433}
434
435static struct notifier_block dhd_sleep_pm_notifier = {
436 .notifier_call = dhd_sleep_pm_callback,
437 .priority = 0
438};
439
440extern int register_pm_notifier(struct notifier_block *nb);
441extern int unregister_pm_notifier(struct notifier_block *nb);
442#endif /* defined(CONFIG_PM_SLEEP) */
443 /* && defined(DHD_GPL) */
444static void dhd_set_packet_filter(int value, dhd_pub_t *dhd)
445{
446#ifdef PKT_FILTER_SUPPORT
447 DHD_TRACE(("%s: %d\n", __func__, value));
448 /* 1 - Enable packet filter, only allow unicast packet to send up */
449 /* 0 - Disable packet filter */
450 if (dhd_pkt_filter_enable) {
451 int i;
452
453 for (i = 0; i < dhd->pktfilter_count; i++) {
454 dhd_pktfilter_offload_set(dhd, dhd->pktfilter[i]);
455 dhd_pktfilter_offload_enable(dhd, dhd->pktfilter[i],
456 value, dhd_master_mode);
457 }
458 }
459#endif
460}
461
462#if defined(CONFIG_HAS_EARLYSUSPEND)
463static int dhd_set_suspend(int value, dhd_pub_t *dhd)
464{
465 int power_mode = PM_MAX;
466 /* wl_pkt_filter_enable_t enable_parm; */
467 char iovbuf[32];
468 int bcn_li_dtim = 3;
469#ifdef CUSTOMER_HW2
470 uint roamvar = 1;
471#endif /* CUSTOMER_HW2 */
472
473 DHD_TRACE(("%s: enter, value = %d in_suspend=%d\n",
474 __func__, value, dhd->in_suspend));
475
476 if (dhd && dhd->up) {
477 if (value && dhd->in_suspend) {
478
479 /* Kernel suspended */
480 DHD_TRACE(("%s: force extra Suspend setting\n",
481 __func__));
482
483 dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM,
484 (char *)&power_mode,
485 sizeof(power_mode));
486
487 /* Enable packet filter, only allow unicast
488 packet to send up */
489 dhd_set_packet_filter(1, dhd);
490
491 /* if dtim skip setup as default force it
492 * to wake each thrid dtim
493 * for better power saving.
494 * Note that side effect is chance to miss BC/MC
495 * packet
496 */
497 if ((dhd->dtim_skip == 0) || (dhd->dtim_skip == 1))
498 bcn_li_dtim = 3;
499 else
500 bcn_li_dtim = dhd->dtim_skip;
501 bcm_mkiovar("bcn_li_dtim", (char *)&bcn_li_dtim,
502 4, iovbuf, sizeof(iovbuf));
503 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
504 sizeof(iovbuf));
505#ifdef CUSTOMER_HW2
506 /* Disable build-in roaming to allowed \
507 * supplicant to take of romaing
508 */
509 bcm_mkiovar("roam_off", (char *)&roamvar, 4,
510 iovbuf, sizeof(iovbuf));
511 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
512 sizeof(iovbuf));
513#endif /* CUSTOMER_HW2 */
514 } else {
515
516 /* Kernel resumed */
517 DHD_TRACE(("%s: Remove extra suspend setting\n",
518 __func__));
519
520 power_mode = PM_FAST;
521 dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM,
522 (char *)&power_mode,
523 sizeof(power_mode));
524
525 /* disable pkt filter */
526 dhd_set_packet_filter(0, dhd);
527
528 /* restore pre-suspend setting for dtim_skip */
529 bcm_mkiovar("bcn_li_dtim", (char *)&dhd->dtim_skip,
530 4, iovbuf, sizeof(iovbuf));
531
532 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
533 sizeof(iovbuf));
534#ifdef CUSTOMER_HW2
535 roamvar = 0;
536 bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf,
537 sizeof(iovbuf));
538 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
539 sizeof(iovbuf));
540#endif /* CUSTOMER_HW2 */
541 }
542 }
543
544 return 0;
545}
546
547static void dhd_suspend_resume_helper(struct dhd_info *dhd, int val)
548{
549 dhd_pub_t *dhdp = &dhd->pub;
550
551 dhd_os_proto_block(dhdp);
552 /* Set flag when early suspend was called */
553 dhdp->in_suspend = val;
554 if (!dhdp->suspend_disable_flag)
555 dhd_set_suspend(val, dhdp);
556 dhd_os_proto_unblock(dhdp);
557}
558
559static void dhd_early_suspend(struct early_suspend *h)
560{
561 struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
562
563 DHD_TRACE(("%s: enter\n", __func__));
564
565 if (dhd)
566 dhd_suspend_resume_helper(dhd, 1);
567
568}
569
570static void dhd_late_resume(struct early_suspend *h)
571{
572 struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
573
574 DHD_TRACE(("%s: enter\n", __func__));
575
576 if (dhd)
577 dhd_suspend_resume_helper(dhd, 0);
578}
579#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
580
581/*
582 * Generalized timeout mechanism. Uses spin sleep with exponential
583 * back-off until
584 * the sleep time reaches one jiffy, then switches over to task delay. Usage:
585 *
586 * dhd_timeout_start(&tmo, usec);
587 * while (!dhd_timeout_expired(&tmo))
588 * if (poll_something())
589 * break;
590 * if (dhd_timeout_expired(&tmo))
591 * fatal();
592 */
593
594void dhd_timeout_start(dhd_timeout_t *tmo, uint usec)
595{
596 tmo->limit = usec;
597 tmo->increment = 0;
598 tmo->elapsed = 0;
599 tmo->tick = 1000000 / HZ;
600}
601
602int dhd_timeout_expired(dhd_timeout_t *tmo)
603{
604 /* Does nothing the first call */
605 if (tmo->increment == 0) {
606 tmo->increment = 1;
607 return 0;
608 }
609
610 if (tmo->elapsed >= tmo->limit)
611 return 1;
612
613 /* Add the delay that's about to take place */
614 tmo->elapsed += tmo->increment;
615
616 if (tmo->increment < tmo->tick) {
7383141b 617 udelay(tmo->increment);
cf2b4488
HP		 618 tmo->increment *= 2;
619 if (tmo->increment > tmo->tick)
620 tmo->increment = tmo->tick;
621 } else {
622 wait_queue_head_t delay_wait;
623 DECLARE_WAITQUEUE(wait, current);
624 int pending;
625 init_waitqueue_head(&delay_wait);
626 add_wait_queue(&delay_wait, &wait);
627 set_current_state(TASK_INTERRUPTIBLE);
628 schedule_timeout(1);
629 pending = signal_pending(current);
630 remove_wait_queue(&delay_wait, &wait);
631 set_current_state(TASK_RUNNING);
632 if (pending)
633 return 1; /* Interrupted */
634 }
635
636 return 0;
637}
638
639static int dhd_net2idx(dhd_info_t *dhd, struct net_device *net)
640{
641 int i = 0;
642
643 ASSERT(dhd);
644 while (i < DHD_MAX_IFS) {
645 if (dhd->iflist[i] && (dhd->iflist[i]->net == net))
646 return i;
647 i++;
648 }
649
650 return DHD_BAD_IF;
651}
652
653int dhd_ifname2idx(dhd_info_t *dhd, char *name)
654{
655 int i = DHD_MAX_IFS;
656
657 ASSERT(dhd);
658
659 if (name == NULL || *name == '\0')
660 return 0;
661
662 while (--i > 0)
663 if (dhd->iflist[i]
664 && !strncmp(dhd->iflist[i]->name, name, IFNAMSIZ))
665 break;
666
667 DHD_TRACE(("%s: return idx %d for \"%s\"\n", __func__, i, name));
668
669 return i; /* default - the primary interface */
670}
671
672char *dhd_ifname(dhd_pub_t *dhdp, int ifidx)
673{
674 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
675
676 ASSERT(dhd);
677
678 if (ifidx < 0 || ifidx >= DHD_MAX_IFS) {
679 DHD_ERROR(("%s: ifidx %d out of range\n", __func__, ifidx));
680 return "<if_bad>";
681 }
682
683 if (dhd->iflist[ifidx] == NULL) {
684 DHD_ERROR(("%s: null i/f %d\n", __func__, ifidx));
685 return "<if_null>";
686 }
687
688 if (dhd->iflist[ifidx]->net)
689 return dhd->iflist[ifidx]->net->name;
690
691 return "<if_none>";
692}
693
694static void _dhd_set_multicast_list(dhd_info_t *dhd, int ifidx)
695{
696 struct net_device *dev;
697 struct netdev_hw_addr *ha;
66cbd3ab 698 u32 allmulti, cnt;
cf2b4488
HP		 699
700 wl_ioctl_t ioc;
701 char *buf, *bufp;
702 uint buflen;
703 int ret;
704
705 ASSERT(dhd && dhd->iflist[ifidx]);
706 dev = dhd->iflist[ifidx]->net;
707 cnt = netdev_mc_count(dev);
708
709 /* Determine initial value of allmulti flag */
0965ae88 710 allmulti = (dev->flags & IFF_ALLMULTI) ? true : false;
cf2b4488
HP		 711
712 /* Send down the multicast list first. */
713
714 buflen = sizeof("mcast_list") + sizeof(cnt) + (cnt * ETHER_ADDR_LEN);
5fcc1fcb 715 bufp = buf = kmalloc(buflen, GFP_ATOMIC);
a618cc28 716 if (!bufp) {
cf2b4488
HP		 717 DHD_ERROR(("%s: out of memory for mcast_list, cnt %d\n",
718 dhd_ifname(&dhd->pub, ifidx), cnt));
719 return;
720 }
721
722 strcpy(bufp, "mcast_list");
723 bufp += strlen("mcast_list") + 1;
724
725 cnt = htol32(cnt);
726 memcpy(bufp, &cnt, sizeof(cnt));
727 bufp += sizeof(cnt);
728
729 netdev_for_each_mc_addr(ha, dev) {
730 if (!cnt)
731 break;
732 memcpy(bufp, ha->addr, ETHER_ADDR_LEN);
733 bufp += ETHER_ADDR_LEN;
734 cnt--;
735 }
736
737 memset(&ioc, 0, sizeof(ioc));
738 ioc.cmd = WLC_SET_VAR;
739 ioc.buf = buf;
740 ioc.len = buflen;
0f0881b0 741 ioc.set = true;
cf2b4488
HP		 742
743 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
744 if (ret < 0) {
745 DHD_ERROR(("%s: set mcast_list failed, cnt %d\n",
746 dhd_ifname(&dhd->pub, ifidx), cnt));
0f0881b0 747 allmulti = cnt ? true : allmulti;
cf2b4488
HP		 748 }
749
182acb3c 750 kfree(buf);
cf2b4488
HP		 751
752 /* Now send the allmulti setting. This is based on the setting in the
753 * net_device flags, but might be modified above to be turned on if we
754 * were trying to set some addresses and dongle rejected it...
755 */
756
757 buflen = sizeof("allmulti") + sizeof(allmulti);
5fcc1fcb 758 buf = kmalloc(buflen, GFP_ATOMIC);
a618cc28 759 if (!buf) {
cf2b4488
HP		 760 DHD_ERROR(("%s: out of memory for allmulti\n",
761 dhd_ifname(&dhd->pub, ifidx)));
762 return;
763 }
764 allmulti = htol32(allmulti);
765
766 if (!bcm_mkiovar
767 ("allmulti", (void *)&allmulti, sizeof(allmulti), buf, buflen)) {
768 DHD_ERROR(("%s: mkiovar failed for allmulti, datalen %d "
769 "buflen %u\n", dhd_ifname(&dhd->pub, ifidx),
770 (int)sizeof(allmulti), buflen));
182acb3c 771 kfree(buf);
cf2b4488
HP		 772 return;
773 }
774
775 memset(&ioc, 0, sizeof(ioc));
776 ioc.cmd = WLC_SET_VAR;
777 ioc.buf = buf;
778 ioc.len = buflen;
0f0881b0 779 ioc.set = true;
cf2b4488
HP		 780
781 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
782 if (ret < 0) {
783 DHD_ERROR(("%s: set allmulti %d failed\n",
784 dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
785 }
786
182acb3c 787 kfree(buf);
cf2b4488
HP		 788
789 /* Finally, pick up the PROMISC flag as well, like the NIC
790 driver does */
791
0965ae88 792 allmulti = (dev->flags & IFF_PROMISC) ? true : false;
cf2b4488
HP		 793 allmulti = htol32(allmulti);
794
795 memset(&ioc, 0, sizeof(ioc));
796 ioc.cmd = WLC_SET_PROMISC;
797 ioc.buf = &allmulti;
798 ioc.len = sizeof(allmulti);
0f0881b0 799 ioc.set = true;
cf2b4488
HP		 800
801 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
802 if (ret < 0) {
803 DHD_ERROR(("%s: set promisc %d failed\n",
804 dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
805 }
806}
807
808static int
809_dhd_set_mac_address(dhd_info_t *dhd, int ifidx, struct ether_addr *addr)
810{
811 char buf[32];
812 wl_ioctl_t ioc;
813 int ret;
814
815 DHD_TRACE(("%s enter\n", __func__));
816 if (!bcm_mkiovar
817 ("cur_etheraddr", (char *)addr, ETHER_ADDR_LEN, buf, 32)) {
818 DHD_ERROR(("%s: mkiovar failed for cur_etheraddr\n",
819 dhd_ifname(&dhd->pub, ifidx)));
820 return -1;
821 }
822 memset(&ioc, 0, sizeof(ioc));
823 ioc.cmd = WLC_SET_VAR;
824 ioc.buf = buf;
825 ioc.len = 32;
0f0881b0 826 ioc.set = true;
cf2b4488
HP		 827
828 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
829 if (ret < 0) {
830 DHD_ERROR(("%s: set cur_etheraddr failed\n",
831 dhd_ifname(&dhd->pub, ifidx)));
832 } else {
833 memcpy(dhd->iflist[ifidx]->net->dev_addr, addr, ETHER_ADDR_LEN);
834 }
835
836 return ret;
837}
838
839#ifdef SOFTAP
840extern struct net_device *ap_net_dev;
841#endif
842
843static void dhd_op_if(dhd_if_t *ifp)
844{
845 dhd_info_t *dhd;
846 int ret = 0, err = 0;
847
848 ASSERT(ifp && ifp->info && ifp->idx); /* Virtual interfaces only */
849
850 dhd = ifp->info;
851
852 DHD_TRACE(("%s: idx %d, state %d\n", __func__, ifp->idx, ifp->state));
853
854 switch (ifp->state) {
855 case WLC_E_IF_ADD:
856 /*
857 * Delete the existing interface before overwriting it
858 * in case we missed the WLC_E_IF_DEL event.
859 */
860 if (ifp->net != NULL) {
861 DHD_ERROR(("%s: ERROR: netdev:%s already exists, "
862 "try free & unregister\n",
863 __func__, ifp->net->name));
864 netif_stop_queue(ifp->net);
865 unregister_netdev(ifp->net);
866 free_netdev(ifp->net);
867 }
868 /* Allocate etherdev, including space for private structure */
a618cc28
JC		 869 ifp->net = alloc_etherdev(sizeof(dhd));
870 if (!ifp->net) {
cf2b4488
HP		 871 DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
872 ret = -ENOMEM;
873 }
874 if (ret == 0) {
875 strcpy(ifp->net->name, ifp->name);
876 memcpy(netdev_priv(ifp->net), &dhd, sizeof(dhd));
a618cc28
JC		 877 err = dhd_net_attach(&dhd->pub, ifp->idx);
878 if (err != 0) {
cf2b4488
HP		 879 DHD_ERROR(("%s: dhd_net_attach failed, "
880 "err %d\n",
881 __func__, err));
882 ret = -EOPNOTSUPP;
883 } else {
884#ifdef SOFTAP
885 /* semaphore that the soft AP CODE
886 waits on */
887 extern struct semaphore ap_eth_sema;
888
889 /* save ptr to wl0.1 netdev for use
890 in wl_iw.c */
891 ap_net_dev = ifp->net;
892 /* signal to the SOFTAP 'sleeper' thread,
893 wl0.1 is ready */
894 up(&ap_eth_sema);
895#endif
896 DHD_TRACE(("\n ==== pid:%x, net_device for "
897 "if:%s created ===\n\n",
898 current->pid, ifp->net->name));
899 ifp->state = 0;
900 }
901 }
902 break;
903 case WLC_E_IF_DEL:
904 if (ifp->net != NULL) {
905 DHD_TRACE(("\n%s: got 'WLC_E_IF_DEL' state\n",
906 __func__));
907 netif_stop_queue(ifp->net);
908 unregister_netdev(ifp->net);
909 ret = DHD_DEL_IF; /* Make sure the free_netdev()
910 is called */
911 }
912 break;
913 default:
914 DHD_ERROR(("%s: bad op %d\n", __func__, ifp->state));
915 ASSERT(!ifp->state);
916 break;
917 }
918
919 if (ret < 0) {
920 if (ifp->net)
921 free_netdev(ifp->net);
922
923 dhd->iflist[ifp->idx] = NULL;
182acb3c 924 kfree(ifp);
cf2b4488
HP		 925#ifdef SOFTAP
926 if (ifp->net == ap_net_dev)
927 ap_net_dev = NULL; /* NULL SOFTAP global
928 wl0.1 as well */
929#endif /* SOFTAP */
930 }
931}
932
933static int _dhd_sysioc_thread(void *data)
934{
935 dhd_info_t *dhd = (dhd_info_t *) data;
936 int i;
937#ifdef SOFTAP
0965ae88 938 bool in_ap = false;
cf2b4488
HP		 939#endif
940
af737136 941 allow_signal(SIGTERM);
942
cf2b4488 943 while (down_interruptible(&dhd->sysioc_sem) == 0) {
eeb8e46b 944 if (kthread_should_stop())
d809dcb9 945 break;
cf2b4488
HP		 946 for (i = 0; i < DHD_MAX_IFS; i++) {
947 if (dhd->iflist[i]) {
948#ifdef SOFTAP
949 in_ap = (ap_net_dev != NULL);
950#endif /* SOFTAP */
951 if (dhd->iflist[i]->state)
952 dhd_op_if(dhd->iflist[i]);
953#ifdef SOFTAP
954 if (dhd->iflist[i] == NULL) {
955 DHD_TRACE(("\n\n %s: interface %d "
956 "removed!\n", __func__, i));
957 continue;
958 }
959
960 if (in_ap && dhd->set_macaddress) {
961 DHD_TRACE(("attempt to set MAC for %s "
962 "in AP Mode," "blocked. \n",
963 dhd->iflist[i]->net->name));
0965ae88 964 dhd->set_macaddress = false;
cf2b4488
HP		 965 continue;
966 }
967
968 if (in_ap && dhd->set_multicast) {
969 DHD_TRACE(("attempt to set MULTICAST list for %s" "in AP Mode, blocked. \n",
970 dhd->iflist[i]->net->name));
0965ae88 971 dhd->set_multicast = false;
cf2b4488
HP		 972 continue;
973 }
974#endif /* SOFTAP */
975 if (dhd->set_multicast) {
0965ae88 976 dhd->set_multicast = false;
cf2b4488
HP		 977 _dhd_set_multicast_list(dhd, i);
978 }
979 if (dhd->set_macaddress) {
0965ae88 980 dhd->set_macaddress = false;
cf2b4488
HP		 981 _dhd_set_mac_address(dhd, i,
982 &dhd->macvalue);
983 }
984 }
985 }
986 }
d809dcb9 987 return 0;
cf2b4488
HP		 988}
989
990static int dhd_set_mac_address(struct net_device *dev, void *addr)
991{
992 int ret = 0;
993
994 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
995 struct sockaddr *sa = (struct sockaddr *)addr;
996 int ifidx;
997
998 ifidx = dhd_net2idx(dhd, dev);
999 if (ifidx == DHD_BAD_IF)
1000 return -1;
1001
d809dcb9 1002 ASSERT(dhd->sysioc_tsk);
cf2b4488 1003 memcpy(&dhd->macvalue, sa->sa_data, ETHER_ADDR_LEN);
0f0881b0 1004 dhd->set_macaddress = true;
cf2b4488
HP		 1005 up(&dhd->sysioc_sem);
1006
1007 return ret;
1008}
1009
1010static void dhd_set_multicast_list(struct net_device *dev)
1011{
1012 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
1013 int ifidx;
1014
1015 ifidx = dhd_net2idx(dhd, dev);
1016 if (ifidx == DHD_BAD_IF)
1017 return;
1018
d809dcb9 1019 ASSERT(dhd->sysioc_tsk);
0f0881b0 1020 dhd->set_multicast = true;
cf2b4488
HP		 1021 up(&dhd->sysioc_sem);
1022}
1023
1024int dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, void *pktbuf)
1025{
1026 int ret;
1027 dhd_info_t *dhd = (dhd_info_t *) (dhdp->info);
1028
1029 /* Reject if down */
1030 if (!dhdp->up || (dhdp->busstate == DHD_BUS_DOWN))
1031 return -ENODEV;
1032
1033 /* Update multicast statistic */
1034 if (PKTLEN(pktbuf) >= ETHER_ADDR_LEN) {
3fd79f7c 1035 u8 *pktdata = (u8 *) PKTDATA(pktbuf);
cf2b4488
HP		 1036 struct ether_header *eh = (struct ether_header *)pktdata;
1037
1038 if (ETHER_ISMULTI(eh->ether_dhost))
1039 dhdp->tx_multicast++;
1040 if (ntoh16(eh->ether_type) == ETHER_TYPE_802_1X)
1041 atomic_inc(&dhd->pend_8021x_cnt);
1042 }
1043
1044 /* Look into the packet and update the packet priority */
1045 if ((PKTPRIO(pktbuf) == 0))
0965ae88 1046 pktsetprio(pktbuf, false);
cf2b4488
HP		 1047
1048 /* If the protocol uses a data header, apply it */
1049 dhd_prot_hdrpush(dhdp, ifidx, pktbuf);
1050
1051 /* Use bus module to send data frame */
1052#ifdef BCMDBUS
1053 ret = dbus_send_pkt(dhdp->dbus, pktbuf, NULL /* pktinfo */);
1054#else
1055 WAKE_LOCK_TIMEOUT(dhdp, WAKE_LOCK_TMOUT, 25);
1056 ret = dhd_bus_txdata(dhdp->bus, pktbuf);
1057#endif /* BCMDBUS */
1058
1059 return ret;
1060}
1061
1062static int dhd_start_xmit(struct sk_buff *skb, struct net_device *net)
1063{
1064 int ret;
1065 void *pktbuf;
1066 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1067 int ifidx;
1068
1069 DHD_TRACE(("%s: Enter\n", __func__));
1070
1071 /* Reject if down */
1072 if (!dhd->pub.up || (dhd->pub.busstate == DHD_BUS_DOWN)) {
1073 DHD_ERROR(("%s: xmit rejected pub.up=%d busstate=%d\n",
1074 __func__, dhd->pub.up, dhd->pub.busstate));
1075 netif_stop_queue(net);
1076 return -ENODEV;
1077 }
1078
1079 ifidx = dhd_net2idx(dhd, net);
1080 if (ifidx == DHD_BAD_IF) {
1081 DHD_ERROR(("%s: bad ifidx %d\n", __func__, ifidx));
1082 netif_stop_queue(net);
1083 return -ENODEV;
1084 }
1085
1086 /* Make sure there's enough room for any header */
1087 if (skb_headroom(skb) < dhd->pub.hdrlen) {
1088 struct sk_buff *skb2;
1089
1090 DHD_INFO(("%s: insufficient headroom\n",
1091 dhd_ifname(&dhd->pub, ifidx)));
1092 dhd->pub.tx_realloc++;
1093 skb2 = skb_realloc_headroom(skb, dhd->pub.hdrlen);
1094 dev_kfree_skb(skb);
a618cc28
JC		 1095 skb = skb2;
1096 if (skb == NULL) {
cf2b4488
HP		 1097 DHD_ERROR(("%s: skb_realloc_headroom failed\n",
1098 dhd_ifname(&dhd->pub, ifidx)));
1099 ret = -ENOMEM;
1100 goto done;
1101 }
1102 }
1103
1104 /* Convert to packet */
a618cc28
JC		 1105 pktbuf = PKTFRMNATIVE(dhd->pub.osh, skb);
1106 if (!pktbuf) {
cf2b4488
HP		 1107 DHD_ERROR(("%s: PKTFRMNATIVE failed\n",
1108 dhd_ifname(&dhd->pub, ifidx)));
1109 dev_kfree_skb_any(skb);
1110 ret = -ENOMEM;
1111 goto done;
1112 }
1113
1114 ret = dhd_sendpkt(&dhd->pub, ifidx, pktbuf);
1115
1116done:
1117 if (ret)
1118 dhd->pub.dstats.tx_dropped++;
1119 else
1120 dhd->pub.tx_packets++;
1121
1122 /* Return ok: we always eat the packet */
1123 return 0;
1124}
1125
1126void dhd_txflowcontrol(dhd_pub_t *dhdp, int ifidx, bool state)
1127{
1128 struct net_device *net;
1129 dhd_info_t *dhd = dhdp->info;
1130
1131 DHD_TRACE(("%s: Enter\n", __func__));
1132
1133 dhdp->txoff = state;
1134 ASSERT(dhd && dhd->iflist[ifidx]);
1135 net = dhd->iflist[ifidx]->net;
1136 if (state == ON)
1137 netif_stop_queue(net);
1138 else
1139 netif_wake_queue(net);
1140}
1141
1142void dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, void *pktbuf, int numpkt)
1143{
1144 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
1145 struct sk_buff *skb;
580a0bd9 1146 unsigned char *eth;
cf2b4488
HP		 1147 uint len;
1148 void *data, *pnext, *save_pktbuf;
1149 int i;
1150 dhd_if_t *ifp;
1151 wl_event_msg_t event;
1152
1153 DHD_TRACE(("%s: Enter\n", __func__));
1154
1155 save_pktbuf = pktbuf;
1156
1157 for (i = 0; pktbuf && i < numpkt; i++, pktbuf = pnext) {
1158
1159 pnext = PKTNEXT(pktbuf);
1160 PKTSETNEXT(pktbuf, NULL);
1161
1162 skb = PKTTONATIVE(dhdp->osh, pktbuf);
1163
1164 /* Get the protocol, maintain skb around eth_type_trans()
1165 * The main reason for this hack is for the limitation of
1166 * Linux 2.4 where 'eth_type_trans' uses the
1167 * 'net->hard_header_len'
1168 * to perform skb_pull inside vs ETH_HLEN. Since to avoid
1169 * coping of the packet coming from the network stack to add
1170 * BDC, Hardware header etc, during network interface
1171 * registration
1172 * we set the 'net->hard_header_len' to ETH_HLEN + extra space
1173 * required
1174 * for BDC, Hardware header etc. and not just the ETH_HLEN
1175 */
1176 eth = skb->data;
1177 len = skb->len;
1178
1179 ifp = dhd->iflist[ifidx];
1180 if (ifp == NULL)
1181 ifp = dhd->iflist[0];
1182
1183 ASSERT(ifp);
1184 skb->dev = ifp->net;
1185 skb->protocol = eth_type_trans(skb, skb->dev);
1186
1187 if (skb->pkt_type == PACKET_MULTICAST)
1188 dhd->pub.rx_multicast++;
1189
1190 skb->data = eth;
1191 skb->len = len;
1192
1193 /* Strip header, count, deliver upward */
1194 skb_pull(skb, ETH_HLEN);
1195
1196 /* Process special event packets and then discard them */
1197 if (ntoh16(skb->protocol) == ETHER_TYPE_BRCM)
1198 dhd_wl_host_event(dhd, &ifidx,
1199 skb->mac_header,
1200 &event, &data);
1201
1202 ASSERT(ifidx < DHD_MAX_IFS && dhd->iflist[ifidx]);
1203 if (dhd->iflist[ifidx] && !dhd->iflist[ifidx]->state)
1204 ifp = dhd->iflist[ifidx];
1205
1206 if (ifp->net)
1207 ifp->net->last_rx = jiffies;
1208
1209 dhdp->dstats.rx_bytes += skb->len;
1210 dhdp->rx_packets++; /* Local count */
1211
1212 if (in_interrupt()) {
1213 netif_rx(skb);
1214 } else {
1215 /* If the receive is not processed inside an ISR,
1216 * the softirqd must be woken explicitly to service
1217 * the NET_RX_SOFTIRQ. In 2.6 kernels, this is handled
1218 * by netif_rx_ni(), but in earlier kernels, we need
1219 * to do it manually.
1220 */
1221 netif_rx_ni(skb);
1222 }
1223 }
1224}
1225
1226void dhd_event(struct dhd_info *dhd, char *evpkt, int evlen, int ifidx)
1227{
1228 /* Linux version has nothing to do */
1229 return;
1230}
1231
1232void dhd_txcomplete(dhd_pub_t *dhdp, void *txp, bool success)
1233{
1234 uint ifidx;
1235 dhd_info_t *dhd = (dhd_info_t *) (dhdp->info);
1236 struct ether_header *eh;
7d4df48e 1237 u16 type;
cf2b4488
HP		 1238
1239 dhd_prot_hdrpull(dhdp, &ifidx, txp);
1240
1241 eh = (struct ether_header *)PKTDATA(txp);
1242 type = ntoh16(eh->ether_type);
1243
1244 if (type == ETHER_TYPE_802_1X)
1245 atomic_dec(&dhd->pend_8021x_cnt);
1246
1247}
1248
1249static struct net_device_stats *dhd_get_stats(struct net_device *net)
1250{
1251 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1252 dhd_if_t *ifp;
1253 int ifidx;
1254
1255 DHD_TRACE(("%s: Enter\n", __func__));
1256
1257 ifidx = dhd_net2idx(dhd, net);
1258 if (ifidx == DHD_BAD_IF)
1259 return NULL;
1260
1261 ifp = dhd->iflist[ifidx];
1262 ASSERT(dhd && ifp);
1263
1264 if (dhd->pub.up) {
1265 /* Use the protocol to get dongle stats */
1266 dhd_prot_dstats(&dhd->pub);
1267 }
1268
1269 /* Copy dongle stats to net device stats */
1270 ifp->stats.rx_packets = dhd->pub.dstats.rx_packets;
1271 ifp->stats.tx_packets = dhd->pub.dstats.tx_packets;
1272 ifp->stats.rx_bytes = dhd->pub.dstats.rx_bytes;
1273 ifp->stats.tx_bytes = dhd->pub.dstats.tx_bytes;
1274 ifp->stats.rx_errors = dhd->pub.dstats.rx_errors;
1275 ifp->stats.tx_errors = dhd->pub.dstats.tx_errors;
1276 ifp->stats.rx_dropped = dhd->pub.dstats.rx_dropped;
1277 ifp->stats.tx_dropped = dhd->pub.dstats.tx_dropped;
1278 ifp->stats.multicast = dhd->pub.dstats.multicast;
1279
1280 return &ifp->stats;
1281}
1282
1283static int dhd_watchdog_thread(void *data)
1284{
1285 dhd_info_t *dhd = (dhd_info_t *) data;
1286 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_WATCHDOG, "dhd_watchdog_thread");
1287
1288 /* This thread doesn't need any user-level access,
1289 * so get rid of all our resources
1290 */
1291#ifdef DHD_SCHED
1292 if (dhd_watchdog_prio > 0) {
1293 struct sched_param param;
1294 param.sched_priority = (dhd_watchdog_prio < MAX_RT_PRIO) ?
1295 dhd_watchdog_prio : (MAX_RT_PRIO - 1);
1296 setScheduler(current, SCHED_FIFO, &param);
1297 }
1298#endif /* DHD_SCHED */
1299
af737136 1300 allow_signal(SIGTERM);
cf2b4488
HP		 1301 /* Run until signal received */
1302 while (1) {
860708d9
JC		 1303 if (kthread_should_stop())
1304 break;
cf2b4488 1305 if (down_interruptible(&dhd->watchdog_sem) == 0) {
0965ae88 1306 if (dhd->pub.dongle_reset == false) {
cf2b4488
HP		 1307 WAKE_LOCK(&dhd->pub, WAKE_LOCK_WATCHDOG);
1308 /* Call the bus module watchdog */
1309 dhd_bus_watchdog(&dhd->pub);
1310 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_WATCHDOG);
1311 }
1312 /* Count the tick for reference */
1313 dhd->pub.tickcnt++;
1314 } else
1315 break;
1316 }
1317
1318 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_WATCHDOG);
860708d9 1319 return 0;
cf2b4488
HP		 1320}
1321
3deea904 1322static void dhd_watchdog(unsigned long data)
cf2b4488
HP		 1323{
1324 dhd_info_t *dhd = (dhd_info_t *) data;
1325
860708d9 1326 if (dhd->watchdog_tsk) {
cf2b4488
HP		 1327 up(&dhd->watchdog_sem);
1328
1329 /* Reschedule the watchdog */
1330 if (dhd->wd_timer_valid) {
1331 mod_timer(&dhd->timer,
1332 jiffies + dhd_watchdog_ms * HZ / 1000);
1333 }
1334 return;
1335 }
1336
1337 /* Call the bus module watchdog */
1338 dhd_bus_watchdog(&dhd->pub);
1339
1340 /* Count the tick for reference */
1341 dhd->pub.tickcnt++;
1342
1343 /* Reschedule the watchdog */
1344 if (dhd->wd_timer_valid)
1345 mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000);
1346}
1347
1348static int dhd_dpc_thread(void *data)
1349{
1350 dhd_info_t *dhd = (dhd_info_t *) data;
1351
1352 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_DPC, "dhd_dpc_thread");
1353 /* This thread doesn't need any user-level access,
1354 * so get rid of all our resources
1355 */
1356#ifdef DHD_SCHED
1357 if (dhd_dpc_prio > 0) {
1358 struct sched_param param;
1359 param.sched_priority =
1360 (dhd_dpc_prio <
1361 MAX_RT_PRIO) ? dhd_dpc_prio : (MAX_RT_PRIO - 1);
1362 setScheduler(current, SCHED_FIFO, &param);
1363 }
1364#endif /* DHD_SCHED */
1365
af737136 1366 allow_signal(SIGTERM);
cf2b4488
HP		 1367 /* Run until signal received */
1368 while (1) {
eeb8e46b 1369 if (kthread_should_stop())
ecd7559d 1370 break;
cf2b4488
HP		 1371 if (down_interruptible(&dhd->dpc_sem) == 0) {
1372 /* Call bus dpc unless it indicated down
1373 (then clean stop) */
1374 if (dhd->pub.busstate != DHD_BUS_DOWN) {
1375 WAKE_LOCK(&dhd->pub, WAKE_LOCK_DPC);
1376 if (dhd_bus_dpc(dhd->pub.bus)) {
1377 up(&dhd->dpc_sem);
1378 WAKE_LOCK_TIMEOUT(&dhd->pub,
1379 WAKE_LOCK_TMOUT, 25);
1380 }
1381 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_DPC);
1382 } else {
0f0881b0 1383 dhd_bus_stop(dhd->pub.bus, true);
cf2b4488
HP		 1384 }
1385 } else
1386 break;
1387 }
1388
1389 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_DPC);
ecd7559d 1390 return 0;
cf2b4488
HP		 1391}
1392
3deea904 1393static void dhd_dpc(unsigned long data)
cf2b4488
HP		 1394{
1395 dhd_info_t *dhd;
1396
1397 dhd = (dhd_info_t *) data;
1398
1399 /* Call bus dpc unless it indicated down (then clean stop) */
1400 if (dhd->pub.busstate != DHD_BUS_DOWN) {
1401 if (dhd_bus_dpc(dhd->pub.bus))
1402 tasklet_schedule(&dhd->tasklet);
1403 } else {
0f0881b0 1404 dhd_bus_stop(dhd->pub.bus, true);
cf2b4488
HP		 1405 }
1406}
1407
1408void dhd_sched_dpc(dhd_pub_t *dhdp)
1409{
1410 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
1411
ecd7559d 1412 if (dhd->dpc_tsk) {
cf2b4488
HP		 1413 up(&dhd->dpc_sem);
1414 return;
1415 }
1416
1417 tasklet_schedule(&dhd->tasklet);
1418}
1419
1420#ifdef TOE
1421/* Retrieve current toe component enables, which are kept
1422 as a bitmap in toe_ol iovar */
66cbd3ab 1423static int dhd_toe_get(dhd_info_t *dhd, int ifidx, u32 *toe_ol)
cf2b4488
HP		 1424{
1425 wl_ioctl_t ioc;
1426 char buf[32];
1427 int ret;
1428
1429 memset(&ioc, 0, sizeof(ioc));
1430
1431 ioc.cmd = WLC_GET_VAR;
1432 ioc.buf = buf;
1433 ioc.len = (uint) sizeof(buf);
0965ae88 1434 ioc.set = false;
cf2b4488
HP		 1435
1436 strcpy(buf, "toe_ol");
a618cc28
JC		 1437 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1438 if (ret < 0) {
cf2b4488
HP		 1439 /* Check for older dongle image that doesn't support toe_ol */
1440 if (ret == -EIO) {
1441 DHD_ERROR(("%s: toe not supported by device\n",
1442 dhd_ifname(&dhd->pub, ifidx)));
1443 return -EOPNOTSUPP;
1444 }
1445
1446 DHD_INFO(("%s: could not get toe_ol: ret=%d\n",
1447 dhd_ifname(&dhd->pub, ifidx), ret));
1448 return ret;
1449 }
1450
66cbd3ab 1451 memcpy(toe_ol, buf, sizeof(u32));
cf2b4488
HP		 1452 return 0;
1453}
1454
1455/* Set current toe component enables in toe_ol iovar,
1456 and set toe global enable iovar */
66cbd3ab 1457static int dhd_toe_set(dhd_info_t *dhd, int ifidx, u32 toe_ol)
cf2b4488
HP		 1458{
1459 wl_ioctl_t ioc;
1460 char buf[32];
1461 int toe, ret;
1462
1463 memset(&ioc, 0, sizeof(ioc));
1464
1465 ioc.cmd = WLC_SET_VAR;
1466 ioc.buf = buf;
1467 ioc.len = (uint) sizeof(buf);
0f0881b0 1468 ioc.set = true;
cf2b4488
HP		 1469
1470 /* Set toe_ol as requested */
1471
1472 strcpy(buf, "toe_ol");
66cbd3ab 1473 memcpy(&buf[sizeof("toe_ol")], &toe_ol, sizeof(u32));
cf2b4488 1474
a618cc28
JC		 1475 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1476 if (ret < 0) {
cf2b4488
HP		 1477 DHD_ERROR(("%s: could not set toe_ol: ret=%d\n",
1478 dhd_ifname(&dhd->pub, ifidx), ret));
1479 return ret;
1480 }
1481
1482 /* Enable toe globally only if any components are enabled. */
1483
1484 toe = (toe_ol != 0);
1485
1486 strcpy(buf, "toe");
66cbd3ab 1487 memcpy(&buf[sizeof("toe")], &toe, sizeof(u32));
cf2b4488 1488
a618cc28
JC		 1489 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1490 if (ret < 0) {
cf2b4488
HP		 1491 DHD_ERROR(("%s: could not set toe: ret=%d\n",
1492 dhd_ifname(&dhd->pub, ifidx), ret));
1493 return ret;
1494 }
1495
1496 return 0;
1497}
1498#endif /* TOE */
1499
1500static void dhd_ethtool_get_drvinfo(struct net_device *net,
1501 struct ethtool_drvinfo *info)
1502{
1503 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1504
93ad12cf 1505 sprintf(info->driver, DRV_MODULE_NAME);
cf2b4488 1506 sprintf(info->version, "%lu", dhd->pub.drv_version);
93ad12cf 1507 sprintf(info->fw_version, "%s", wl_cfg80211_get_fwname());
1508 sprintf(info->bus_info, "%s", dev_name(&wl_cfg80211_get_sdio_func()->dev));
cf2b4488
HP		 1509}
1510
1511struct ethtool_ops dhd_ethtool_ops = {
1512 .get_drvinfo = dhd_ethtool_get_drvinfo
1513};
1514
1515static int dhd_ethtool(dhd_info_t *dhd, void *uaddr)
1516{
1517 struct ethtool_drvinfo info;
1518 char drvname[sizeof(info.driver)];
66cbd3ab 1519 u32 cmd;
cf2b4488
HP		 1520#ifdef TOE
1521 struct ethtool_value edata;
66cbd3ab 1522 u32 toe_cmpnt, csum_dir;
cf2b4488
HP		 1523 int ret;
1524#endif
1525
1526 DHD_TRACE(("%s: Enter\n", __func__));
1527
1528 /* all ethtool calls start with a cmd word */
66cbd3ab 1529 if (copy_from_user(&cmd, uaddr, sizeof(u32)))
cf2b4488
HP		 1530 return -EFAULT;
1531
1532 switch (cmd) {
1533 case ETHTOOL_GDRVINFO:
1534 /* Copy out any request driver name */
1535 if (copy_from_user(&info, uaddr, sizeof(info)))
1536 return -EFAULT;
1537 strncpy(drvname, info.driver, sizeof(info.driver));
1538 drvname[sizeof(info.driver) - 1] = '\0';
1539
1540 /* clear struct for return */
1541 memset(&info, 0, sizeof(info));
1542 info.cmd = cmd;
1543
1544 /* if dhd requested, identify ourselves */
1545 if (strcmp(drvname, "?dhd") == 0) {
1546 sprintf(info.driver, "dhd");
1547 strcpy(info.version, EPI_VERSION_STR);
1548 }
1549
1550 /* otherwise, require dongle to be up */
1551 else if (!dhd->pub.up) {
1552 DHD_ERROR(("%s: dongle is not up\n", __func__));
1553 return -ENODEV;
1554 }
1555
1556 /* finally, report dongle driver type */
1557 else if (dhd->pub.iswl)
1558 sprintf(info.driver, "wl");
1559 else
1560 sprintf(info.driver, "xx");
1561
1562 sprintf(info.version, "%lu", dhd->pub.drv_version);
1563 if (copy_to_user(uaddr, &info, sizeof(info)))
1564 return -EFAULT;
1565 DHD_CTL(("%s: given %*s, returning %s\n", __func__,
1566 (int)sizeof(drvname), drvname, info.driver));
1567 break;
1568
1569#ifdef TOE
1570 /* Get toe offload components from dongle */
1571 case ETHTOOL_GRXCSUM:
1572 case ETHTOOL_GTXCSUM:
a618cc28
JC		 1573 ret = dhd_toe_get(dhd, 0, &toe_cmpnt);
1574 if (ret < 0)
cf2b4488
HP		 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 */
a618cc28
JC		 1594 ret = dhd_toe_get(dhd, 0, &toe_cmpnt);
1595 if (ret < 0)
cf2b4488
HP		 1596 return ret;
1597
1598 csum_dir =
1599 (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
1600
1601 if (edata.data != 0)
1602 toe_cmpnt |= csum_dir;
1603 else
1604 toe_cmpnt &= ~csum_dir;
1605
a618cc28
JC		 1606 ret = dhd_toe_set(dhd, 0, toe_cmpnt);
1607 if (ret < 0)
cf2b4488
HP		 1608 return ret;
1609
1610 /* If setting TX checksum mode, tell Linux the new mode */
1611 if (cmd == ETHTOOL_STXCSUM) {
1612 if (edata.data)
1613 dhd->iflist[0]->net->features |=
1614 NETIF_F_IP_CSUM;
1615 else
1616 dhd->iflist[0]->net->features &=
1617 ~NETIF_F_IP_CSUM;
1618 }
1619
1620 break;
1621#endif /* TOE */
1622
1623 default:
1624 return -EOPNOTSUPP;
1625 }
1626
1627 return 0;
1628}
1629
1630static int dhd_ioctl_entry(struct net_device *net, struct ifreq *ifr, int cmd)
1631{
1632 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1633 dhd_ioctl_t ioc;
1634 int bcmerror = 0;
1635 int buflen = 0;
1636 void *buf = NULL;
1637 uint driver = 0;
1638 int ifidx;
1639 bool is_set_key_cmd;
1640
1641 ifidx = dhd_net2idx(dhd, net);
1642 DHD_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __func__, ifidx, cmd));
1643
1644 if (ifidx == DHD_BAD_IF)
1645 return -1;
1646
1647#if defined(CONFIG_WIRELESS_EXT)
1648 /* linux wireless extensions */
1649 if ((cmd >= SIOCIWFIRST) && (cmd <= SIOCIWLAST)) {
1650 /* may recurse, do NOT lock */
1651 return wl_iw_ioctl(net, ifr, cmd);
1652 }
1653#endif /* defined(CONFIG_WIRELESS_EXT) */
1654
1655 if (cmd == SIOCETHTOOL)
1656 return dhd_ethtool(dhd, (void *)ifr->ifr_data);
1657
1658 if (cmd != SIOCDEVPRIVATE)
1659 return -EOPNOTSUPP;
1660
1661 memset(&ioc, 0, sizeof(ioc));
1662
1663 /* Copy the ioc control structure part of ioctl request */
1664 if (copy_from_user(&ioc, ifr->ifr_data, sizeof(wl_ioctl_t))) {
1665 bcmerror = -BCME_BADADDR;
1666 goto done;
1667 }
1668
1669 /* Copy out any buffer passed */
1670 if (ioc.buf) {
53e974db 1671 buflen = min_t(int, ioc.len, DHD_IOCTL_MAXLEN);
cf2b4488
HP		 1672 /* optimization for direct ioctl calls from kernel */
1673 /*
1674 if (segment_eq(get_fs(), KERNEL_DS)) {
1675 buf = ioc.buf;
1676 } else {
1677 */
1678 {
5fcc1fcb 1679 buf = kmalloc(buflen, GFP_ATOMIC);
a618cc28 1680 if (!buf) {
cf2b4488
HP		 1681 bcmerror = -BCME_NOMEM;
1682 goto done;
1683 }
1684 if (copy_from_user(buf, ioc.buf, buflen)) {
1685 bcmerror = -BCME_BADADDR;
1686 goto done;
1687 }
1688 }
1689 }
1690
1691 /* To differentiate between wl and dhd read 4 more byes */
1692 if ((copy_from_user(&driver, (char *)ifr->ifr_data + sizeof(wl_ioctl_t),
1693 sizeof(uint)) != 0)) {
1694 bcmerror = -BCME_BADADDR;
1695 goto done;
1696 }
1697
1698 if (!capable(CAP_NET_ADMIN)) {
1699 bcmerror = -BCME_EPERM;
1700 goto done;
1701 }
1702
1703 /* check for local dhd ioctl and handle it */
1704 if (driver == DHD_IOCTL_MAGIC) {
1705 bcmerror = dhd_ioctl((void *)&dhd->pub, &ioc, buf, buflen);
1706 if (bcmerror)
1707 dhd->pub.bcmerror = bcmerror;
1708 goto done;
1709 }
1710
1711 /* send to dongle (must be up, and wl) */
1712 if ((dhd->pub.busstate != DHD_BUS_DATA)) {
1713 DHD_ERROR(("%s DONGLE_DOWN,__func__\n", __func__));
1714 bcmerror = BCME_DONGLE_DOWN;
1715 goto done;
1716 }
1717
1718 if (!dhd->pub.iswl) {
1719 bcmerror = BCME_DONGLE_DOWN;
1720 goto done;
1721 }
1722
1723 /* Intercept WLC_SET_KEY IOCTL - serialize M4 send and set key IOCTL to
1724 * prevent M4 encryption.
1725 */
1726 is_set_key_cmd = ((ioc.cmd == WLC_SET_KEY) ||
1727 ((ioc.cmd == WLC_SET_VAR) &&
1728 !(strncmp("wsec_key", ioc.buf, 9))) ||
1729 ((ioc.cmd == WLC_SET_VAR) &&
1730 !(strncmp("bsscfg:wsec_key", ioc.buf, 15))));
1731 if (is_set_key_cmd)
1732 dhd_wait_pend8021x(net);
1733
1734 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_IOCTL, "dhd_ioctl_entry");
1735 WAKE_LOCK(&dhd->pub, WAKE_LOCK_IOCTL);
1736
1737 bcmerror =
1738 dhd_prot_ioctl(&dhd->pub, ifidx, (wl_ioctl_t *)&ioc, buf, buflen);
1739
1740 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_IOCTL);
1741 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_IOCTL);
1742done:
1743 if (!bcmerror && buf && ioc.buf) {
1744 if (copy_to_user(ioc.buf, buf, buflen))
1745 bcmerror = -EFAULT;
1746 }
1747
1748 if (buf)
182acb3c 1749 kfree(buf);
cf2b4488
HP		 1750
1751 return OSL_ERROR(bcmerror);
1752}
1753
1754static int dhd_stop(struct net_device *net)
1755{
1756#if !defined(IGNORE_ETH0_DOWN)
1757 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1758
1759 DHD_TRACE(("%s: Enter\n", __func__));
cf2b4488
HP		 1760 if (IS_CFG80211_FAVORITE()) {
1761 wl_cfg80211_down();
1762 }
cf2b4488
HP		 1763 if (dhd->pub.up == 0)
1764 return 0;
1765
1766 /* Set state and stop OS transmissions */
1767 dhd->pub.up = 0;
1768 netif_stop_queue(net);
1769#else
1770 DHD_ERROR(("BYPASS %s:due to BRCM compilation : under investigation\n",
1771 __func__));
1772#endif /* !defined(IGNORE_ETH0_DOWN) */
1773
cf2b4488
HP		 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
66cbd3ab 1781 u32 toe_ol;
cf2b4488
HP		 1782#endif
1783 int ifidx = dhd_net2idx(dhd, net);
3e26416e 1784 s32 ret = 0;
cf2b4488
HP		 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 */
a618cc28
JC		 1791 ret = dhd_bus_start(&dhd->pub);
1792 if (ret != 0) {
cf2b4488
HP		 1793 DHD_ERROR(("%s: failed with code %d\n", __func__, ret));
1794 return -1;
1795 }
1796 atomic_set(&dhd->pend_8021x_cnt, 0);
1797
1798 memcpy(net->dev_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
1799
1800#ifdef TOE
1801 /* Get current TOE mode from dongle */
1802 if (dhd_toe_get(dhd, ifidx, &toe_ol) >= 0
1803 && (toe_ol & TOE_TX_CSUM_OL) != 0)
1804 dhd->iflist[ifidx]->net->features |= NETIF_F_IP_CSUM;
1805 else
1806 dhd->iflist[ifidx]->net->features &= ~NETIF_F_IP_CSUM;
1807#endif
1808 }
1809 /* Allow transmit calls */
1810 netif_start_queue(net);
1811 dhd->pub.up = 1;
cf2b4488
HP		 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 }
cf2b4488 1819
cf2b4488
HP		 1820 return ret;
1821}
1822
1823osl_t *dhd_osl_attach(void *pdev, uint bustype)
1824{
0f0881b0 1825 return osl_attach(pdev, bustype, true);
cf2b4488
HP		 1826}
1827
1828void dhd_osl_detach(osl_t *osh)
1829{
cf2b4488
HP		 1830 osl_detach(osh);
1831}
1832
1833int
1834dhd_add_if(dhd_info_t *dhd, int ifidx, void *handle, char *name,
66cbd3ab 1835 u8 *mac_addr, u32 flags, u8 bssidx)
cf2b4488
HP		 1836{
1837 dhd_if_t *ifp;
1838
1839 DHD_TRACE(("%s: idx %d, handle->%p\n", __func__, ifidx, handle));
1840
1841 ASSERT(dhd && (ifidx < DHD_MAX_IFS));
1842
1843 ifp = dhd->iflist[ifidx];
5fcc1fcb 1844 if (!ifp && !(ifp = kmalloc(sizeof(dhd_if_t), GFP_ATOMIC))) {
cf2b4488
HP		 1845 DHD_ERROR(("%s: OOM - dhd_if_t\n", __func__));
1846 return -ENOMEM;
1847 }
1848
1849 memset(ifp, 0, sizeof(dhd_if_t));
1850 ifp->info = dhd;
1851 dhd->iflist[ifidx] = ifp;
cbf6baac 1852 strlcpy(ifp->name, name, IFNAMSIZ);
cf2b4488
HP		 1853 if (mac_addr != NULL)
1854 memcpy(&ifp->mac_addr, mac_addr, ETHER_ADDR_LEN);
1855
1856 if (handle == NULL) {
1857 ifp->state = WLC_E_IF_ADD;
1858 ifp->idx = ifidx;
d809dcb9 1859 ASSERT(dhd->sysioc_tsk);
cf2b4488
HP		 1860 up(&dhd->sysioc_sem);
1861 } else
1862 ifp->net = (struct net_device *)handle;
1863
1864 return 0;
1865}
1866
1867void dhd_del_if(dhd_info_t *dhd, int ifidx)
1868{
1869 dhd_if_t *ifp;
1870
1871 DHD_TRACE(("%s: idx %d\n", __func__, ifidx));
1872
1873 ASSERT(dhd && ifidx && (ifidx < DHD_MAX_IFS));
1874 ifp = dhd->iflist[ifidx];
1875 if (!ifp) {
1876 DHD_ERROR(("%s: Null interface\n", __func__));
1877 return;
1878 }
1879
1880 ifp->state = WLC_E_IF_DEL;
1881 ifp->idx = ifidx;
d809dcb9 1882 ASSERT(dhd->sysioc_tsk);
cf2b4488
HP		 1883 up(&dhd->sysioc_sem);
1884}
1885
1886dhd_pub_t *dhd_attach(osl_t *osh, struct dhd_bus *bus, uint bus_hdrlen)
1887{
1888 dhd_info_t *dhd = NULL;
1889 struct net_device *net;
1890
1891 DHD_TRACE(("%s: Enter\n", __func__));
1892 /* updates firmware nvram path if it was provided as module
1893 paramters */
1894 if ((firmware_path != NULL) && (firmware_path[0] != '\0'))
1895 strcpy(fw_path, firmware_path);
1896 if ((nvram_path != NULL) && (nvram_path[0] != '\0'))
1897 strcpy(nv_path, nvram_path);
1898
1899 /* Allocate etherdev, including space for private structure */
a618cc28
JC		 1900 net = alloc_etherdev(sizeof(dhd));
1901 if (!net) {
cf2b4488
HP		 1902 DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
1903 goto fail;
1904 }
1905
1906 /* Allocate primary dhd_info */
5fcc1fcb 1907 dhd = kmalloc(sizeof(dhd_info_t), GFP_ATOMIC);
a618cc28 1908 if (!dhd) {
cf2b4488
HP		 1909 DHD_ERROR(("%s: OOM - alloc dhd_info\n", __func__));
1910 goto fail;
1911 }
1912
1913 memset(dhd, 0, sizeof(dhd_info_t));
1914
1915 /*
1916 * Save the dhd_info into the priv
1917 */
1918 memcpy(netdev_priv(net), &dhd, sizeof(dhd));
1919 dhd->pub.osh = osh;
1920
1921 /* Set network interface name if it was provided as module parameter */
1922 if (iface_name[0]) {
1923 int len;
1924 char ch;
1925 strncpy(net->name, iface_name, IFNAMSIZ);
1926 net->name[IFNAMSIZ - 1] = 0;
1927 len = strlen(net->name);
1928 ch = net->name[len - 1];
1929 if ((ch > '9' || ch < '0') && (len < IFNAMSIZ - 2))
1930 strcat(net->name, "%d");
1931 }
1932
1933 if (dhd_add_if(dhd, 0, (void *)net, net->name, NULL, 0, 0) ==
1934 DHD_BAD_IF)
1935 goto fail;
1936
1937 net->netdev_ops = NULL;
1938 init_MUTEX(&dhd->proto_sem);
1939 /* Initialize other structure content */
1940 init_waitqueue_head(&dhd->ioctl_resp_wait);
1941 init_waitqueue_head(&dhd->ctrl_wait);
1942
1943 /* Initialize the spinlocks */
1944 spin_lock_init(&dhd->sdlock);
1945 spin_lock_init(&dhd->txqlock);
1946
1947 /* Link to info module */
1948 dhd->pub.info = dhd;
1949
1950 /* Link to bus module */
1951 dhd->pub.bus = bus;
1952 dhd->pub.hdrlen = bus_hdrlen;
1953
1954 /* Attach and link in the protocol */
1955 if (dhd_prot_attach(&dhd->pub) != 0) {
1956 DHD_ERROR(("dhd_prot_attach failed\n"));
1957 goto fail;
1958 }
1959#if defined(CONFIG_WIRELESS_EXT)
1960 /* Attach and link in the iw */
1961 if (wl_iw_attach(net, (void *)&dhd->pub) != 0) {
1962 DHD_ERROR(("wl_iw_attach failed\n"));
1963 goto fail;
1964 }
1e8dd5b9 1965#endif /* defined(CONFIG_WIRELESS_EXT) */
cf2b4488 1966
cf2b4488
HP		 1967 /* Attach and link in the cfg80211 */
1968 if (IS_CFG80211_FAVORITE()) {
1969 if (unlikely(wl_cfg80211_attach(net, &dhd->pub))) {
1970 DHD_ERROR(("wl_cfg80211_attach failed\n"));
1971 goto fail;
1972 }
1973 if (!NO_FW_REQ()) {
1974 strcpy(fw_path, wl_cfg80211_get_fwname());
1975 strcpy(nv_path, wl_cfg80211_get_nvramname());
1976 }
1977 wl_cfg80211_dbg_level(DBG_CFG80211_GET());
1978 }
cf2b4488
HP		 1979
1980 /* Set up the watchdog timer */
1981 init_timer(&dhd->timer);
3deea904 1982 dhd->timer.data = (unsigned long) dhd;
cf2b4488
HP		 1983 dhd->timer.function = dhd_watchdog;
1984
1985 /* Initialize thread based operation and lock */
1986 init_MUTEX(&dhd->sdsem);
1987 if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0))
0f0881b0 1988 dhd->threads_only = true;
cf2b4488 1989 else
0965ae88 1990 dhd->threads_only = false;
cf2b4488
HP		 1991
1992 if (dhd_dpc_prio >= 0) {
1993 /* Initialize watchdog thread */
1994 sema_init(&dhd->watchdog_sem, 0);
860708d9
JC		 1995 dhd->watchdog_tsk = kthread_run(dhd_watchdog_thread, dhd,
1996 "dhd_watchdog");
1997 if (IS_ERR(dhd->watchdog_tsk)) {
1998 printk(KERN_WARNING
1999 "dhd_watchdog thread failed to start\n");
2000 dhd->watchdog_tsk = NULL;
2001 }
cf2b4488 2002 } else {
860708d9 2003 dhd->watchdog_tsk = NULL;
cf2b4488
HP		 2004 }
2005
2006 /* Set up the bottom half handler */
2007 if (dhd_dpc_prio >= 0) {
2008 /* Initialize DPC thread */
2009 sema_init(&dhd->dpc_sem, 0);
ecd7559d
JC		 2010 dhd->dpc_tsk = kthread_run(dhd_dpc_thread, dhd, "dhd_dpc");
2011 if (IS_ERR(dhd->dpc_tsk)) {
2012 printk(KERN_WARNING
2013 "dhd_dpc thread failed to start\n");
2014 dhd->dpc_tsk = NULL;
2015 }
cf2b4488 2016 } else {
3deea904 2017 tasklet_init(&dhd->tasklet, dhd_dpc, (unsigned long) dhd);
ecd7559d 2018 dhd->dpc_tsk = NULL;
cf2b4488
HP		 2019 }
2020
2021 if (dhd_sysioc) {
2022 sema_init(&dhd->sysioc_sem, 0);
d809dcb9
JC		 2023 dhd->sysioc_tsk = kthread_run(_dhd_sysioc_thread, dhd,
2024 "_dhd_sysioc");
2025 if (IS_ERR(dhd->sysioc_tsk)) {
2026 printk(KERN_WARNING
2027 "_dhd_sysioc thread failed to start\n");
2028 dhd->sysioc_tsk = NULL;
2029 }
2030 } else
2031 dhd->sysioc_tsk = NULL;
cf2b4488
HP		 2032
2033 /*
2034 * Save the dhd_info into the priv
2035 */
2036 memcpy(netdev_priv(net), &dhd, sizeof(dhd));
2037
2038#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2039 g_bus = bus;
2040#endif
2041#if defined(CONFIG_PM_SLEEP)
2042 register_pm_notifier(&dhd_sleep_pm_notifier);
2043#endif /* defined(CONFIG_PM_SLEEP) */
2044 /* && defined(DHD_GPL) */
2045 /* Init lock suspend to prevent kernel going to suspend */
2046 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_TMOUT, "dhd_wake_lock");
2047 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_LINK_DOWN_TMOUT,
2048 "dhd_wake_lock_link_dw_event");
2049 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_PNO_FIND_TMOUT,
2050 "dhd_wake_lock_link_pno_find_event");
2051#ifdef CONFIG_HAS_EARLYSUSPEND
2052 dhd->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 20;
2053 dhd->early_suspend.suspend = dhd_early_suspend;
2054 dhd->early_suspend.resume = dhd_late_resume;
2055 register_early_suspend(&dhd->early_suspend);
2056#endif
2057
2058 return &dhd->pub;
2059
2060fail:
2061 if (net)
2062 free_netdev(net);
2063 if (dhd)
2064 dhd_detach(&dhd->pub);
2065
2066 return NULL;
2067}
2068
2069int dhd_bus_start(dhd_pub_t *dhdp)
2070{
2071 int ret = -1;
2072 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
2073#ifdef EMBEDDED_PLATFORM
2074 char iovbuf[WL_EVENTING_MASK_LEN + 12]; /* Room for "event_msgs" +
2075 '\0' + bitvec */
2076#endif /* EMBEDDED_PLATFORM */
2077
2078 ASSERT(dhd);
2079
2080 DHD_TRACE(("%s:\n", __func__));
2081
2082 /* try to download image and nvram to the dongle */
2083 if (dhd->pub.busstate == DHD_BUS_DOWN) {
2084 WAKE_LOCK_INIT(dhdp, WAKE_LOCK_DOWNLOAD, "dhd_bus_start");
2085 WAKE_LOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2086 if (!(dhd_bus_download_firmware(dhd->pub.bus, dhd->pub.osh,
2087 fw_path, nv_path))) {
2088 DHD_ERROR(("%s: dhdsdio_probe_download failed. "
2089 "firmware = %s nvram = %s\n",
2090 __func__, fw_path, nv_path));
2091 WAKE_UNLOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2092 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_DOWNLOAD);
2093 return -1;
2094 }
2095
2096 WAKE_UNLOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2097 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_DOWNLOAD);
2098 }
2099
2100 /* Start the watchdog timer */
2101 dhd->pub.tickcnt = 0;
2102 dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
2103
2104 /* Bring up the bus */
0f0881b0 2105 ret = dhd_bus_init(&dhd->pub, true);
a618cc28 2106 if (ret != 0) {
cf2b4488
HP		 2107 DHD_ERROR(("%s, dhd_bus_init failed %d\n", __func__, ret));
2108 return ret;
2109 }
2110#if defined(OOB_INTR_ONLY)
2111 /* Host registration for OOB interrupt */
2112 if (bcmsdh_register_oob_intr(dhdp)) {
2113 del_timer_sync(&dhd->timer);
0965ae88 2114 dhd->wd_timer_valid = false;
cf2b4488
HP		 2115 DHD_ERROR(("%s Host failed to resgister for OOB\n", __func__));
2116 return -ENODEV;
2117 }
2118
2119 /* Enable oob at firmware */
0f0881b0 2120 dhd_enable_oob_intr(dhd->pub.bus, true);
cf2b4488
HP		 2121#endif /* defined(OOB_INTR_ONLY) */
2122
2123 /* If bus is not ready, can't come up */
2124 if (dhd->pub.busstate != DHD_BUS_DATA) {
2125 del_timer_sync(&dhd->timer);
0965ae88 2126 dhd->wd_timer_valid = false;
cf2b4488
HP		 2127 DHD_ERROR(("%s failed bus is not ready\n", __func__));
2128 return -ENODEV;
2129 }
2130#ifdef EMBEDDED_PLATFORM
2131 bcm_mkiovar("event_msgs", dhdp->eventmask, WL_EVENTING_MASK_LEN, iovbuf,
2132 sizeof(iovbuf));
2133 dhdcdc_query_ioctl(dhdp, 0, WLC_GET_VAR, iovbuf, sizeof(iovbuf));
2134 bcopy(iovbuf, dhdp->eventmask, WL_EVENTING_MASK_LEN);
2135
2136 setbit(dhdp->eventmask, WLC_E_SET_SSID);
2137 setbit(dhdp->eventmask, WLC_E_PRUNE);
2138 setbit(dhdp->eventmask, WLC_E_AUTH);
2139 setbit(dhdp->eventmask, WLC_E_REASSOC);
2140 setbit(dhdp->eventmask, WLC_E_REASSOC_IND);
2141 setbit(dhdp->eventmask, WLC_E_DEAUTH_IND);
2142 setbit(dhdp->eventmask, WLC_E_DISASSOC_IND);
2143 setbit(dhdp->eventmask, WLC_E_DISASSOC);
2144 setbit(dhdp->eventmask, WLC_E_JOIN);
2145 setbit(dhdp->eventmask, WLC_E_ASSOC_IND);
2146 setbit(dhdp->eventmask, WLC_E_PSK_SUP);
2147 setbit(dhdp->eventmask, WLC_E_LINK);
2148 setbit(dhdp->eventmask, WLC_E_NDIS_LINK);
2149 setbit(dhdp->eventmask, WLC_E_MIC_ERROR);
2150 setbit(dhdp->eventmask, WLC_E_PMKID_CACHE);
2151 setbit(dhdp->eventmask, WLC_E_TXFAIL);
2152 setbit(dhdp->eventmask, WLC_E_JOIN_START);
2153 setbit(dhdp->eventmask, WLC_E_SCAN_COMPLETE);
2154#ifdef PNO_SUPPORT
2155 setbit(dhdp->eventmask, WLC_E_PFN_NET_FOUND);
2156#endif /* PNO_SUPPORT */
2157
2158/* enable dongle roaming event */
2159
2160 dhdp->pktfilter_count = 1;
2161 /* Setup filter to allow only unicast */
2162 dhdp->pktfilter[0] = "100 0 0 0 0x01 0x00";
2163#endif /* EMBEDDED_PLATFORM */
2164
2165 /* Bus is ready, do any protocol initialization */
a618cc28
JC		 2166 ret = dhd_prot_init(&dhd->pub);
2167 if (ret < 0)
cf2b4488
HP		 2168 return ret;
2169
2170 return 0;
2171}
2172
2173int
2174dhd_iovar(dhd_pub_t *pub, int ifidx, char *name, char *cmd_buf, uint cmd_len,
2175 int set)
2176{
2177 char buf[strlen(name) + 1 + cmd_len];
2178 int len = sizeof(buf);
2179 wl_ioctl_t ioc;
2180 int ret;
2181
2182 len = bcm_mkiovar(name, cmd_buf, cmd_len, buf, len);
2183
2184 memset(&ioc, 0, sizeof(ioc));
2185
2186 ioc.cmd = set ? WLC_SET_VAR : WLC_GET_VAR;
2187 ioc.buf = buf;
2188 ioc.len = len;
2189 ioc.set = set;
2190
2191 ret = dhd_prot_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);
2192 if (!set && ret >= 0)
2193 memcpy(cmd_buf, buf, cmd_len);
2194
2195 return ret;
2196}
2197
2198static struct net_device_ops dhd_ops_pri = {
2199 .ndo_open = dhd_open,
2200 .ndo_stop = dhd_stop,
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
2208static struct net_device_ops dhd_ops_virt = {
2209 .ndo_get_stats = dhd_get_stats,
2210 .ndo_do_ioctl = dhd_ioctl_entry,
2211 .ndo_start_xmit = dhd_start_xmit,
2212 .ndo_set_mac_address = dhd_set_mac_address,
2213 .ndo_set_multicast_list = dhd_set_multicast_list
2214};
2215
2216int dhd_net_attach(dhd_pub_t *dhdp, int ifidx)
2217{
2218 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
2219 struct net_device *net;
3fd79f7c 2220 u8 temp_addr[ETHER_ADDR_LEN] = {
cf2b4488
HP		 2221 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33};
2222
2223 DHD_TRACE(("%s: ifidx %d\n", __func__, ifidx));
2224
2225 ASSERT(dhd && dhd->iflist[ifidx]);
2226
2227 net = dhd->iflist[ifidx]->net;
2228 ASSERT(net);
2229
2230 ASSERT(!net->netdev_ops);
2231 net->netdev_ops = &dhd_ops_virt;
2232
2233 net->netdev_ops = &dhd_ops_pri;
2234
2235 /*
2236 * We have to use the primary MAC for virtual interfaces
2237 */
2238 if (ifidx != 0) {
2239 /* for virtual interfaces use the primary MAC */
2240 memcpy(temp_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
2241
2242 }
2243
2244 if (ifidx == 1) {
2245 DHD_TRACE(("%s ACCESS POINT MAC: \n", __func__));
2246 /* ACCESSPOINT INTERFACE CASE */
2247 temp_addr[0] |= 0X02; /* set bit 2 ,
2248 - Locally Administered address */
2249
2250 }
2251 net->hard_header_len = ETH_HLEN + dhd->pub.hdrlen;
2252 net->ethtool_ops = &dhd_ethtool_ops;
2253
2254#if defined(CONFIG_WIRELESS_EXT)
cf2b4488 2255 if (!IS_CFG80211_FAVORITE()) {
cf2b4488
HP		 2256#if WIRELESS_EXT < 19
2257 net->get_wireless_stats = dhd_get_wireless_stats;
2258#endif /* WIRELESS_EXT < 19 */
2259#if WIRELESS_EXT > 12
2260 net->wireless_handlers =
2261 (struct iw_handler_def *)&wl_iw_handler_def;
2262#endif /* WIRELESS_EXT > 12 */
cf2b4488 2263 }
cf2b4488
HP		 2264#endif /* defined(CONFIG_WIRELESS_EXT) */
2265
2266 dhd->pub.rxsz = net->mtu + net->hard_header_len + dhd->pub.hdrlen;
2267
2268 memcpy(net->dev_addr, temp_addr, ETHER_ADDR_LEN);
2269
2270 if (register_netdev(net) != 0) {
2271 DHD_ERROR(("%s: couldn't register the net device\n",
2272 __func__));
2273 goto fail;
2274 }
2275
2276 printf("%s: Broadcom Dongle Host Driver\n", net->name);
2277
2278 return 0;
2279
2280fail:
2281 net->netdev_ops = NULL;
2282 return BCME_ERROR;
2283}
2284
2285void dhd_bus_detach(dhd_pub_t *dhdp)
2286{
2287 dhd_info_t *dhd;
2288
2289 DHD_TRACE(("%s: Enter\n", __func__));
2290
2291 if (dhdp) {
2292 dhd = (dhd_info_t *) dhdp->info;
2293 if (dhd) {
2294 /* Stop the protocol module */
2295 dhd_prot_stop(&dhd->pub);
2296
2297 /* Stop the bus module */
0f0881b0 2298 dhd_bus_stop(dhd->pub.bus, true);
cf2b4488
HP		 2299#if defined(OOB_INTR_ONLY)
2300 bcmsdh_unregister_oob_intr();
2301#endif /* defined(OOB_INTR_ONLY) */
2302
2303 /* Clear the watchdog timer */
2304 del_timer_sync(&dhd->timer);
0965ae88 2305 dhd->wd_timer_valid = false;
cf2b4488
HP		 2306 }
2307 }
2308}
2309
2310void dhd_detach(dhd_pub_t *dhdp)
2311{
2312 dhd_info_t *dhd;
2313
2314 DHD_TRACE(("%s: Enter\n", __func__));
2315
2316 if (dhdp) {
2317 dhd = (dhd_info_t *) dhdp->info;
2318 if (dhd) {
2319 dhd_if_t *ifp;
2320 int i;
2321
2322#if defined(CONFIG_HAS_EARLYSUSPEND)
2323 if (dhd->early_suspend.suspend)
2324 unregister_early_suspend(&dhd->early_suspend);
2325#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
2326
2327 for (i = 1; i < DHD_MAX_IFS; i++)
2328 if (dhd->iflist[i])
2329 dhd_del_if(dhd, i);
2330
2331 ifp = dhd->iflist[0];
2332 ASSERT(ifp);
2333 if (ifp->net->netdev_ops == &dhd_ops_pri) {
2334 dhd_stop(ifp->net);
2335 unregister_netdev(ifp->net);
2336 }
2337
860708d9 2338 if (dhd->watchdog_tsk) {
7356f429 2339 send_sig(SIGTERM, dhd->watchdog_tsk, 1);
860708d9
JC		 2340 kthread_stop(dhd->watchdog_tsk);
2341 dhd->watchdog_tsk = NULL;
cf2b4488
HP		 2342 }
2343
ecd7559d 2344 if (dhd->dpc_tsk) {
7356f429 2345 send_sig(SIGTERM, dhd->dpc_tsk, 1);
ecd7559d
JC		 2346 kthread_stop(dhd->dpc_tsk);
2347 dhd->dpc_tsk = NULL;
eeb8e46b 2348 } else
cf2b4488
HP		 2349 tasklet_kill(&dhd->tasklet);
2350
d809dcb9 2351 if (dhd->sysioc_tsk) {
7356f429 2352 send_sig(SIGTERM, dhd->sysioc_tsk, 1);
d809dcb9
JC		 2353 kthread_stop(dhd->sysioc_tsk);
2354 dhd->sysioc_tsk = NULL;
cf2b4488
HP		 2355 }
2356
2357 dhd_bus_detach(dhdp);
2358
2359 if (dhdp->prot)
2360 dhd_prot_detach(dhdp);
2361
2362#if defined(CONFIG_WIRELESS_EXT)
2363 wl_iw_detach();
2364#endif /* (CONFIG_WIRELESS_EXT) */
2365
cf2b4488
HP		 2366 if (IS_CFG80211_FAVORITE())
2367 wl_cfg80211_detach();
cf2b4488
HP		 2368
2369#if defined(CONFIG_PM_SLEEP)
2370 unregister_pm_notifier(&dhd_sleep_pm_notifier);
2371#endif /* defined(CONFIG_PM_SLEEP) */
2372 /* && defined(DHD_GPL) */
2373 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_TMOUT);
2374 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_LINK_DOWN_TMOUT);
2375 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_PNO_FIND_TMOUT);
2376 free_netdev(ifp->net);
182acb3c 2377 kfree(ifp);
2378 kfree(dhd);
cf2b4488
HP		 2379 }
2380 }
2381}
2382
2383static void __exit dhd_module_cleanup(void)
2384{
2385 DHD_TRACE(("%s: Enter\n", __func__));
2386
2387 dhd_bus_unregister();
2388#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2389 wifi_del_dev();
2390#endif
2391 /* Call customer gpio to turn off power with WL_REG_ON signal */
2392 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
2393}
2394
2395static int __init dhd_module_init(void)
2396{
2397 int error;
2398
2399 DHD_TRACE(("%s: Enter\n", __func__));
2400
2401 /* Sanity check on the module parameters */
2402 do {
2403 /* Both watchdog and DPC as tasklets are ok */
2404 if ((dhd_watchdog_prio < 0) && (dhd_dpc_prio < 0))
2405 break;
2406
2407 /* If both watchdog and DPC are threads, TX must be deferred */
2408 if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0)
2409 && dhd_deferred_tx)
2410 break;
2411
2412 DHD_ERROR(("Invalid module parameters.\n"));
2413 return -EINVAL;
2414 } while (0);
2415 /* Call customer gpio to turn on power with WL_REG_ON signal */
2416 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_ON);
2417
2418#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2419 sema_init(&wifi_control_sem, 0);
2420
2421 error = wifi_add_dev();
2422 if (error) {
2423 DHD_ERROR(("%s: platform_driver_register failed\n", __func__));
2424 goto faild;
2425 }
2426
2427 /* Waiting callback after platform_driver_register is done or
2428 exit with error */
2429 if (down_timeout(&wifi_control_sem, msecs_to_jiffies(1000)) != 0) {
2430 printk(KERN_ERR "%s: platform_driver_register timeout\n",
2431 __func__);
2432 /* remove device */
2433 wifi_del_dev();
2434 goto faild;
2435 }
2436#endif /* #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
2437
2438 error = dhd_bus_register();
2439
2440 if (!error)
2441 printf("\n%s\n", dhd_version);
2442 else {
2443 DHD_ERROR(("%s: sdio_register_driver failed\n", __func__));
2444 goto faild;
2445 }
2446 return error;
2447
2448faild:
2449 /* turn off power and exit */
2450 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
2451 return -EINVAL;
2452}
2453
2454module_init(dhd_module_init);
2455module_exit(dhd_module_cleanup);
2456
2457/*
2458 * OS specific functions required to implement DHD driver in OS independent way
2459 */
2460int dhd_os_proto_block(dhd_pub_t *pub)
2461{
2462 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2463
2464 if (dhd) {
2465 down(&dhd->proto_sem);
2466 return 1;
2467 }
2468 return 0;
2469}
2470
2471int dhd_os_proto_unblock(dhd_pub_t *pub)
2472{
2473 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2474
2475 if (dhd) {
2476 up(&dhd->proto_sem);
2477 return 1;
2478 }
2479
2480 return 0;
2481}
2482
2483unsigned int dhd_os_get_ioctl_resp_timeout(void)
2484{
2485 return (unsigned int)dhd_ioctl_timeout_msec;
2486}
2487
2488void dhd_os_set_ioctl_resp_timeout(unsigned int timeout_msec)
2489{
2490 dhd_ioctl_timeout_msec = (int)timeout_msec;
2491}
2492
2493int dhd_os_ioctl_resp_wait(dhd_pub_t *pub, uint *condition, bool *pending)
2494{
2495 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2496 DECLARE_WAITQUEUE(wait, current);
2497 int timeout = dhd_ioctl_timeout_msec;
2498
2499 /* Convert timeout in millsecond to jiffies */
2500 timeout = timeout * HZ / 1000;
2501
2502 /* Wait until control frame is available */
2503 add_wait_queue(&dhd->ioctl_resp_wait, &wait);
2504 set_current_state(TASK_INTERRUPTIBLE);
2505
2506 while (!(*condition) && (!signal_pending(current) && timeout))
2507 timeout = schedule_timeout(timeout);
2508
2509 if (signal_pending(current))
0f0881b0 2510 *pending = true;
cf2b4488
HP		 2511
2512 set_current_state(TASK_RUNNING);
2513 remove_wait_queue(&dhd->ioctl_resp_wait, &wait);
2514
2515 return timeout;
2516}
2517
2518int dhd_os_ioctl_resp_wake(dhd_pub_t *pub)
2519{
2520 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2521
2522 if (waitqueue_active(&dhd->ioctl_resp_wait))
2523 wake_up_interruptible(&dhd->ioctl_resp_wait);
2524
2525 return 0;
2526}
2527
2528void dhd_os_wd_timer(void *bus, uint wdtick)
2529{
2530 dhd_pub_t *pub = bus;
5f782dee 2531 static uint save_dhd_watchdog_ms;
cf2b4488
HP		 2532 dhd_info_t *dhd = (dhd_info_t *) pub->info;
2533
2534 /* don't start the wd until fw is loaded */
2535 if (pub->busstate == DHD_BUS_DOWN)
2536 return;
2537
2538 /* Totally stop the timer */
0f0881b0 2539 if (!wdtick && dhd->wd_timer_valid == true) {
cf2b4488 2540 del_timer_sync(&dhd->timer);
0965ae88 2541 dhd->wd_timer_valid = false;
cf2b4488
HP		 2542 save_dhd_watchdog_ms = wdtick;
2543 return;
2544 }
2545
2546 if (wdtick) {
2547 dhd_watchdog_ms = (uint) wdtick;
2548
2549 if (save_dhd_watchdog_ms != dhd_watchdog_ms) {
2550
0f0881b0 2551 if (dhd->wd_timer_valid == true)
cf2b4488
HP		 2552 /* Stop timer and restart at new value */
2553 del_timer_sync(&dhd->timer);
2554
2555 /* Create timer again when watchdog period is
2556 dynamically changed or in the first instance
2557 */
2558 dhd->timer.expires =
2559 jiffies + dhd_watchdog_ms * HZ / 1000;
2560 add_timer(&dhd->timer);
2561
2562 } else {
2563 /* Re arm the timer, at last watchdog period */
2564 mod_timer(&dhd->timer,
2565 jiffies + dhd_watchdog_ms * HZ / 1000);
2566 }
2567
0f0881b0 2568 dhd->wd_timer_valid = true;
cf2b4488
HP		 2569 save_dhd_watchdog_ms = wdtick;
2570 }
2571}
2572
2573void *dhd_os_open_image(char *filename)
2574{
2575 struct file *fp;
2576
cf2b4488
HP		 2577 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2578 return wl_cfg80211_request_fw(filename);
cf2b4488
HP		 2579
2580 fp = filp_open(filename, O_RDONLY, 0);
2581 /*
2582 * 2.6.11 (FC4) supports filp_open() but later revs don't?
2583 * Alternative:
2584 * fp = open_namei(AT_FDCWD, filename, O_RD, 0);
2585 * ???
2586 */
2587 if (IS_ERR(fp))
2588 fp = NULL;
2589
2590 return fp;
2591}
2592
2593int dhd_os_get_image_block(char *buf, int len, void *image)
2594{
2595 struct file *fp = (struct file *)image;
2596 int rdlen;
2597
cf2b4488
HP		 2598 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2599 return wl_cfg80211_read_fw(buf, len);
cf2b4488
HP		 2600
2601 if (!image)
2602 return 0;
2603
2604 rdlen = kernel_read(fp, fp->f_pos, buf, len);
2605 if (rdlen > 0)
2606 fp->f_pos += rdlen;
2607
2608 return rdlen;
2609}
2610
2611void dhd_os_close_image(void *image)
2612{
cf2b4488
HP		 2613 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2614 return wl_cfg80211_release_fw();
cf2b4488
HP		 2615 if (image)
2616 filp_close((struct file *)image, NULL);
2617}
2618
2619void dhd_os_sdlock(dhd_pub_t *pub)
2620{
2621 dhd_info_t *dhd;
2622
2623 dhd = (dhd_info_t *) (pub->info);
2624
2625 if (dhd->threads_only)
2626 down(&dhd->sdsem);
2627 else
2628 spin_lock_bh(&dhd->sdlock);
2629}
2630
2631void dhd_os_sdunlock(dhd_pub_t *pub)
2632{
2633 dhd_info_t *dhd;
2634
2635 dhd = (dhd_info_t *) (pub->info);
2636
2637 if (dhd->threads_only)
2638 up(&dhd->sdsem);
2639 else
2640 spin_unlock_bh(&dhd->sdlock);
2641}
2642
2643void dhd_os_sdlock_txq(dhd_pub_t *pub)
2644{
2645 dhd_info_t *dhd;
2646
2647 dhd = (dhd_info_t *) (pub->info);
2648 spin_lock_bh(&dhd->txqlock);
2649}
2650
2651void dhd_os_sdunlock_txq(dhd_pub_t *pub)
2652{
2653 dhd_info_t *dhd;
2654
2655 dhd = (dhd_info_t *) (pub->info);
2656 spin_unlock_bh(&dhd->txqlock);
2657}
2658
2659void dhd_os_sdlock_rxq(dhd_pub_t *pub)
2660{
2661}
2662
2663void dhd_os_sdunlock_rxq(dhd_pub_t *pub)
2664{
2665}
2666
2667void dhd_os_sdtxlock(dhd_pub_t *pub)
2668{
2669 dhd_os_sdlock(pub);
2670}
2671
2672void dhd_os_sdtxunlock(dhd_pub_t *pub)
2673{
2674 dhd_os_sdunlock(pub);
2675}
2676
cf2b4488
HP		 2677#if defined(CONFIG_WIRELESS_EXT)
2678struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev)
2679{
2680 int res = 0;
2681 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2682
2683 res = wl_iw_get_wireless_stats(dev, &dhd->iw.wstats);
2684
2685 if (res == 0)
2686 return &dhd->iw.wstats;
2687 else
2688 return NULL;
2689}
2690#endif /* defined(CONFIG_WIRELESS_EXT) */
2691
2692static int
2693dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
2694 wl_event_msg_t *event, void **data)
2695{
2696 int bcmerror = 0;
2697
2698 ASSERT(dhd != NULL);
2699
2700 bcmerror = wl_host_event(dhd, ifidx, pktdata, event, data);
2701 if (bcmerror != BCME_OK)
2702 return bcmerror;
2703
2704#if defined(CONFIG_WIRELESS_EXT)
cf2b4488 2705 if (!IS_CFG80211_FAVORITE()) {
cf2b4488
HP		 2706 if ((dhd->iflist[*ifidx] == NULL)
2707 || (dhd->iflist[*ifidx]->net == NULL)) {
2708 DHD_ERROR(("%s Exit null pointer\n", __func__));
2709 return bcmerror;
2710 }
2711
2712 if (dhd->iflist[*ifidx]->net)
2713 wl_iw_event(dhd->iflist[*ifidx]->net, event, *data);
cf2b4488 2714 }
cf2b4488
HP		 2715#endif /* defined(CONFIG_WIRELESS_EXT) */
2716
cf2b4488
HP		 2717 if (IS_CFG80211_FAVORITE()) {
2718 ASSERT(dhd->iflist[*ifidx] != NULL);
2719 ASSERT(dhd->iflist[*ifidx]->net != NULL);
2720 if (dhd->iflist[*ifidx]->net)
2721 wl_cfg80211_event(dhd->iflist[*ifidx]->net, event,
2722 *data);
2723 }
cf2b4488
HP		 2724
2725 return bcmerror;
2726}
2727
2728/* send up locally generated event */
2729void dhd_sendup_event(dhd_pub_t *dhdp, wl_event_msg_t *event, void *data)
2730{
2731 switch (ntoh32(event->event_type)) {
2732 default:
2733 break;
2734 }
2735}
2736
2737void dhd_wait_for_event(dhd_pub_t *dhd, bool *lockvar)
2738{
2739 struct dhd_info *dhdinfo = dhd->info;
2740 dhd_os_sdunlock(dhd);
2741 wait_event_interruptible_timeout(dhdinfo->ctrl_wait,
0965ae88 2742 (*lockvar == false), HZ * 2);
cf2b4488
HP		 2743 dhd_os_sdlock(dhd);
2744 return;
2745}
2746
2747void dhd_wait_event_wakeup(dhd_pub_t *dhd)
2748{
2749 struct dhd_info *dhdinfo = dhd->info;
2750 if (waitqueue_active(&dhdinfo->ctrl_wait))
2751 wake_up_interruptible(&dhdinfo->ctrl_wait);
2752 return;
2753}
2754
3fd79f7c 2755int dhd_dev_reset(struct net_device *dev, u8 flag)
cf2b4488
HP		 2756{
2757 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2758
2759 /* Turning off watchdog */
2760 if (flag)
2761 dhd_os_wd_timer(&dhd->pub, 0);
2762
2763 dhd_bus_devreset(&dhd->pub, flag);
2764
2765 /* Turning on watchdog back */
2766 if (!flag)
2767 dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
2768 DHD_ERROR(("%s: WLAN OFF DONE\n", __func__));
2769
2770 return 1;
2771}
2772
2773int net_os_set_suspend_disable(struct net_device *dev, int val)
2774{
2775 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2776 int ret = 0;
2777
2778 if (dhd) {
2779 ret = dhd->pub.suspend_disable_flag;
2780 dhd->pub.suspend_disable_flag = val;
2781 }
2782 return ret;
2783}
2784
2785int net_os_set_suspend(struct net_device *dev, int val)
2786{
2787 int ret = 0;
2788#if defined(CONFIG_HAS_EARLYSUSPEND)
2789 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2790
2791 if (dhd) {
2792 dhd_os_proto_block(&dhd->pub);
2793 ret = dhd_set_suspend(val, &dhd->pub);
2794 dhd_os_proto_unblock(&dhd->pub);
2795 }
2796#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
2797 return ret;
2798}
2799
2800int net_os_set_dtim_skip(struct net_device *dev, int val)
2801{
2802 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2803
2804 if (dhd)
2805 dhd->pub.dtim_skip = val;
2806
2807 return 0;
2808}
2809
2810int net_os_set_packet_filter(struct net_device *dev, int val)
2811{
2812 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2813 int ret = 0;
2814
2815 /* Packet filtering is set only if we still in early-suspend and
2816 * we need either to turn it ON or turn it OFF
2817 * We can always turn it OFF in case of early-suspend, but we turn it
2818 * back ON only if suspend_disable_flag was not set
2819 */
2820 if (dhd && dhd->pub.up) {
2821 dhd_os_proto_block(&dhd->pub);
2822 if (dhd->pub.in_suspend) {
2823 if (!val || (val && !dhd->pub.suspend_disable_flag))
2824 dhd_set_packet_filter(val, &dhd->pub);
2825 }
2826 dhd_os_proto_unblock(&dhd->pub);
2827 }
2828 return ret;
2829}
2830
2831void dhd_dev_init_ioctl(struct net_device *dev)
2832{
2833 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2834
2835 dhd_preinit_ioctls(&dhd->pub);
2836}
2837
2838#ifdef PNO_SUPPORT
2839/* Linux wrapper to call common dhd_pno_clean */
2840int dhd_dev_pno_reset(struct net_device *dev)
2841{
2842 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2843
2844 return dhd_pno_clean(&dhd->pub);
2845}
2846
2847/* Linux wrapper to call common dhd_pno_enable */
2848int dhd_dev_pno_enable(struct net_device *dev, int pfn_enabled)
2849{
2850 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2851
2852 return dhd_pno_enable(&dhd->pub, pfn_enabled);
2853}
2854
2855/* Linux wrapper to call common dhd_pno_set */
2856int
2857dhd_dev_pno_set(struct net_device *dev, wlc_ssid_t *ssids_local, int nssid,
580a0bd9 2858 unsigned char scan_fr)
cf2b4488
HP		 2859{
2860 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2861
2862 return dhd_pno_set(&dhd->pub, ssids_local, nssid, scan_fr);
2863}
2864
2865/* Linux wrapper to get pno status */
2866int dhd_dev_get_pno_status(struct net_device *dev)
2867{
2868 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2869
2870 return dhd_pno_get_status(&dhd->pub);
2871}
2872
2873#endif /* PNO_SUPPORT */
2874
2875static int dhd_get_pend_8021x_cnt(dhd_info_t *dhd)
2876{
2877 return atomic_read(&dhd->pend_8021x_cnt);
2878}
2879
2880#define MAX_WAIT_FOR_8021X_TX 10
2881
2882int dhd_wait_pend8021x(struct net_device *dev)
2883{
2884 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2885 int timeout = 10 * HZ / 1000;
2886 int ntimes = MAX_WAIT_FOR_8021X_TX;
2887 int pend = dhd_get_pend_8021x_cnt(dhd);
2888
2889 while (ntimes && pend) {
2890 if (pend) {
2891 set_current_state(TASK_INTERRUPTIBLE);
2892 schedule_timeout(timeout);
2893 set_current_state(TASK_RUNNING);
2894 ntimes--;
2895 }
2896 pend = dhd_get_pend_8021x_cnt(dhd);
2897 }
2898 return pend;
2899}
2900
2901#ifdef DHD_DEBUG
3fd79f7c 2902int write_to_file(dhd_pub_t *dhd, u8 *buf, int size)
cf2b4488
HP		 2903{
2904 int ret = 0;
2905 struct file *fp;
2906 mm_segment_t old_fs;
2907 loff_t pos = 0;
2908
2909 /* change to KERNEL_DS address limit */
2910 old_fs = get_fs();
2911 set_fs(KERNEL_DS);
2912
2913 /* open file to write */
2914 fp = filp_open("/tmp/mem_dump", O_WRONLY | O_CREAT, 0640);
2915 if (!fp) {
2916 printf("%s: open file error\n", __func__);
2917 ret = -1;
2918 goto exit;
2919 }
2920
2921 /* Write buf to file */
2922 fp->f_op->write(fp, buf, size, &pos);
2923
2924exit:
2925 /* free buf before return */
182acb3c 2926 kfree(buf);
cf2b4488
HP		 2927 /* close file before return */
2928 if (fp)
2929 filp_close(fp, current->files);
2930 /* restore previous address limit */
2931 set_fs(old_fs);
2932
2933 return ret;
2934}
2935#endif /* DHD_DEBUG */
kernel source for telekom puls (alcatel/mediatek)