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staging: brcm80211: Purge linuxver.h and redistribute #includes as required
[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
cf2b4488
HP		 20#include <linux/init.h>
21#include <linux/kernel.h>
860708d9 22#include <linux/kthread.h>
cf2b4488
HP		 23#include <linux/slab.h>
24#include <linux/skbuff.h>
25#include <linux/netdevice.h>
26#include <linux/etherdevice.h>
93ad12cf 27#include <linux/mmc/sdio_func.h>
cf2b4488
HP		 28#include <linux/random.h>
29#include <linux/spinlock.h>
30#include <linux/ethtool.h>
31#include <linux/fcntl.h>
32#include <linux/fs.h>
93ad12cf 33#include <linux/uaccess.h>
a1c16ed2 34#include <bcmdefs.h>
a1c16ed2 35#include <osl.h>
cf2b4488
HP		 36#include <bcmutils.h>
37#include <bcmendian.h>
38
39#include <proto/ethernet.h>
40#include <dngl_stats.h>
41#include <dhd.h>
42#include <dhd_bus.h>
43#include <dhd_proto.h>
44#include <dhd_dbg.h>
45
cf2b4488 46#include <wl_cfg80211.h>
cf2b4488
HP		 47
48#define EPI_VERSION_STR "4.218.248.5"
49
50#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
51#include <linux/wifi_tiwlan.h>
52
53struct semaphore wifi_control_sem;
54
55struct dhd_bus *g_bus;
56
5f782dee
JC		 57static struct wifi_platform_data *wifi_control_data;
58static struct resource *wifi_irqres;
cf2b4488
HP		 59
60int wifi_get_irq_number(unsigned long *irq_flags_ptr)
61{
62 if (wifi_irqres) {
63 *irq_flags_ptr = wifi_irqres->flags & IRQF_TRIGGER_MASK;
64 return (int)wifi_irqres->start;
65 }
66#ifdef CUSTOM_OOB_GPIO_NUM
67 return CUSTOM_OOB_GPIO_NUM;
68#else
69 return -1;
70#endif
71}
72
73int wifi_set_carddetect(int on)
74{
75 printk(KERN_ERR "%s = %d\n", __func__, on);
76 if (wifi_control_data && wifi_control_data->set_carddetect)
77 wifi_control_data->set_carddetect(on);
78 return 0;
79}
80
81int wifi_set_power(int on, unsigned long msec)
82{
83 printk(KERN_ERR "%s = %d\n", __func__, on);
84 if (wifi_control_data && wifi_control_data->set_power)
85 wifi_control_data->set_power(on);
86 if (msec)
87 mdelay(msec);
88 return 0;
89}
90
91int wifi_set_reset(int on, unsigned long msec)
92{
93 printk(KERN_ERR "%s = %d\n", __func__, on);
94 if (wifi_control_data && wifi_control_data->set_reset)
95 wifi_control_data->set_reset(on);
96 if (msec)
97 mdelay(msec);
98 return 0;
99}
100
101static int wifi_probe(struct platform_device *pdev)
102{
103 struct wifi_platform_data *wifi_ctrl =
104 (struct wifi_platform_data *)(pdev->dev.platform_data);
105
106 printk(KERN_ERR "## %s\n", __func__);
107 wifi_irqres =
108 platform_get_resource_byname(pdev, IORESOURCE_IRQ,
109 "bcm4329_wlan_irq");
110 wifi_control_data = wifi_ctrl;
111
112 wifi_set_power(1, 0); /* Power On */
113 wifi_set_carddetect(1); /* CardDetect (0->1) */
114
115 up(&wifi_control_sem);
116 return 0;
117}
118
119static int wifi_remove(struct platform_device *pdev)
120{
121 struct wifi_platform_data *wifi_ctrl =
122 (struct wifi_platform_data *)(pdev->dev.platform_data);
123
124 printk(KERN_ERR "## %s\n", __func__);
125 wifi_control_data = wifi_ctrl;
126
127 wifi_set_carddetect(0); /* CardDetect (1->0) */
128 wifi_set_power(0, 0); /* Power Off */
129
130 up(&wifi_control_sem);
131 return 0;
132}
133
134static int wifi_suspend(struct platform_device *pdev, pm_message_t state)
135{
136 DHD_TRACE(("##> %s\n", __func__));
137 return 0;
138}
139
140static int wifi_resume(struct platform_device *pdev)
141{
142 DHD_TRACE(("##> %s\n", __func__));
143 return 0;
144}
145
146static struct platform_driver wifi_device = {
147 .probe = wifi_probe,
148 .remove = wifi_remove,
149 .suspend = wifi_suspend,
150 .resume = wifi_resume,
151 .driver = {
152 .name = "bcm4329_wlan",
153 }
154};
155
156int wifi_add_dev(void)
157{
158 DHD_TRACE(("## Calling platform_driver_register\n"));
159 return platform_driver_register(&wifi_device);
160}
161
162void wifi_del_dev(void)
163{
164 DHD_TRACE(("## Unregister platform_driver_register\n"));
165 platform_driver_unregister(&wifi_device);
166}
167#endif /* defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
168
169#if defined(CONFIG_PM_SLEEP)
170#include <linux/suspend.h>
0965ae88 171volatile bool dhd_mmc_suspend = false;
cf2b4488
HP		 172DECLARE_WAIT_QUEUE_HEAD(dhd_dpc_wait);
173#endif /* defined(CONFIG_PM_SLEEP) */
174
175#if defined(OOB_INTR_ONLY)
176extern void dhd_enable_oob_intr(struct dhd_bus *bus, bool enable);
177#endif /* defined(OOB_INTR_ONLY) */
178
179MODULE_AUTHOR("Broadcom Corporation");
180MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN fullmac driver.");
181MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac cards");
182MODULE_LICENSE("Dual BSD/GPL");
183
93ad12cf 184#define DRV_MODULE_NAME "brcmfmac"
185
cf2b4488
HP		 186/* Linux wireless extension support */
187#if defined(CONFIG_WIRELESS_EXT)
188#include <wl_iw.h>
189extern wl_iw_extra_params_t g_wl_iw_params;
190#endif /* defined(CONFIG_WIRELESS_EXT) */
191
192#if defined(CONFIG_HAS_EARLYSUSPEND)
193#include <linux/earlysuspend.h>
194extern int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf,
195 uint len);
196#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
197
198#ifdef PKT_FILTER_SUPPORT
199extern void dhd_pktfilter_offload_set(dhd_pub_t *dhd, char *arg);
200extern void dhd_pktfilter_offload_enable(dhd_pub_t *dhd, char *arg, int enable,
201 int master_mode);
202#endif
203
204/* Interface control information */
205typedef struct dhd_if {
206 struct dhd_info *info; /* back pointer to dhd_info */
207 /* OS/stack specifics */
208 struct net_device *net;
209 struct net_device_stats stats;
210 int idx; /* iface idx in dongle */
211 int state; /* interface state */
212 uint subunit; /* subunit */
3fd79f7c 213 u8 mac_addr[ETHER_ADDR_LEN]; /* assigned MAC address */
cf2b4488
HP		 214 bool attached; /* Delayed attachment when unset */
215 bool txflowcontrol; /* Per interface flow control indicator */
cbf6baac 216 char name[IFNAMSIZ]; /* linux interface name */
cf2b4488
HP		 217} dhd_if_t;
218
219/* Local private structure (extension of pub) */
220typedef struct dhd_info {
221#if defined(CONFIG_WIRELESS_EXT)
222 wl_iw_t iw; /* wireless extensions state (must be first) */
223#endif /* defined(CONFIG_WIRELESS_EXT) */
224
225 dhd_pub_t pub;
226
227 /* OS/stack specifics */
228 dhd_if_t *iflist[DHD_MAX_IFS];
229
230 struct semaphore proto_sem;
231 wait_queue_head_t ioctl_resp_wait;
232 struct timer_list timer;
233 bool wd_timer_valid;
234 struct tasklet_struct tasklet;
235 spinlock_t sdlock;
236 spinlock_t txqlock;
237 /* Thread based operation */
238 bool threads_only;
239 struct semaphore sdsem;
860708d9 240 struct task_struct *watchdog_tsk;
cf2b4488 241 struct semaphore watchdog_sem;
ecd7559d 242 struct task_struct *dpc_tsk;
cf2b4488 243 struct semaphore dpc_sem;
cf2b4488
HP		 244
245 /* Thread to issue ioctl for multicast */
d809dcb9 246 struct task_struct *sysioc_tsk;
cf2b4488 247 struct semaphore sysioc_sem;
cf2b4488
HP		 248 bool set_multicast;
249 bool set_macaddress;
250 struct ether_addr macvalue;
251 wait_queue_head_t ctrl_wait;
252 atomic_t pend_8021x_cnt;
253
254#ifdef CONFIG_HAS_EARLYSUSPEND
255 struct early_suspend early_suspend;
256#endif /* CONFIG_HAS_EARLYSUSPEND */
257} dhd_info_t;
258
259/* Definitions to provide path to the firmware and nvram
260 * example nvram_path[MOD_PARAM_PATHLEN]="/projects/wlan/nvram.txt"
261 */
262char firmware_path[MOD_PARAM_PATHLEN];
263char nvram_path[MOD_PARAM_PATHLEN];
264
265/* load firmware and/or nvram values from the filesystem */
266module_param_string(firmware_path, firmware_path, MOD_PARAM_PATHLEN, 0);
267module_param_string(nvram_path, nvram_path, MOD_PARAM_PATHLEN, 0);
268
269/* Error bits */
270module_param(dhd_msg_level, int, 0);
271
272/* Spawn a thread for system ioctls (set mac, set mcast) */
0f0881b0 273uint dhd_sysioc = true;
cf2b4488
HP		 274module_param(dhd_sysioc, uint, 0);
275
276/* Watchdog interval */
277uint dhd_watchdog_ms = 10;
278module_param(dhd_watchdog_ms, uint, 0);
279
280#ifdef DHD_DEBUG
281/* Console poll interval */
6998d337 282uint dhd_console_ms;
cf2b4488
HP		 283module_param(dhd_console_ms, uint, 0);
284#endif /* DHD_DEBUG */
285
286/* ARP offload agent mode : Enable ARP Host Auto-Reply
287and ARP Peer Auto-Reply */
288uint dhd_arp_mode = 0xb;
289module_param(dhd_arp_mode, uint, 0);
290
291/* ARP offload enable */
0f0881b0 292uint dhd_arp_enable = true;
cf2b4488
HP		 293module_param(dhd_arp_enable, uint, 0);
294
295/* Global Pkt filter enable control */
0f0881b0 296uint dhd_pkt_filter_enable = true;
cf2b4488
HP		 297module_param(dhd_pkt_filter_enable, uint, 0);
298
299/* Pkt filter init setup */
6998d337 300uint dhd_pkt_filter_init;
cf2b4488
HP		 301module_param(dhd_pkt_filter_init, uint, 0);
302
303/* Pkt filter mode control */
0f0881b0 304uint dhd_master_mode = true;
cf2b4488
HP		 305module_param(dhd_master_mode, uint, 1);
306
307/* Watchdog thread priority, -1 to use kernel timer */
308int dhd_watchdog_prio = 97;
309module_param(dhd_watchdog_prio, int, 0);
310
311/* DPC thread priority, -1 to use tasklet */
312int dhd_dpc_prio = 98;
313module_param(dhd_dpc_prio, int, 0);
314
315/* DPC thread priority, -1 to use tasklet */
316extern int dhd_dongle_memsize;
317module_param(dhd_dongle_memsize, int, 0);
318
319/* Contorl fw roaming */
320#ifdef CUSTOMER_HW2
6998d337 321uint dhd_roam;
cf2b4488
HP		 322#else
323uint dhd_roam = 1;
324#endif
325
326/* Control radio state */
327uint dhd_radio_up = 1;
328
329/* Network inteface name */
330char iface_name[IFNAMSIZ];
331module_param_string(iface_name, iface_name, IFNAMSIZ, 0);
332
cf2b4488
HP		 333/* The following are specific to the SDIO dongle */
334
335/* IOCTL response timeout */
336int dhd_ioctl_timeout_msec = IOCTL_RESP_TIMEOUT;
337
338/* Idle timeout for backplane clock */
339int dhd_idletime = DHD_IDLETIME_TICKS;
340module_param(dhd_idletime, int, 0);
341
342/* Use polling */
0965ae88 343uint dhd_poll = false;
cf2b4488
HP		 344module_param(dhd_poll, uint, 0);
345
cf2b4488 346/* Use cfg80211 */
0f0881b0 347uint dhd_cfg80211 = true;
cf2b4488 348module_param(dhd_cfg80211, uint, 0);
cf2b4488
HP		 349
350/* Use interrupts */
0f0881b0 351uint dhd_intr = true;
cf2b4488
HP		 352module_param(dhd_intr, uint, 0);
353
354/* SDIO Drive Strength (in milliamps) */
355uint dhd_sdiod_drive_strength = 6;
356module_param(dhd_sdiod_drive_strength, uint, 0);
357
358/* Tx/Rx bounds */
359extern uint dhd_txbound;
360extern uint dhd_rxbound;
361module_param(dhd_txbound, uint, 0);
362module_param(dhd_rxbound, uint, 0);
363
364/* Deferred transmits */
365extern uint dhd_deferred_tx;
366module_param(dhd_deferred_tx, uint, 0);
367
368#ifdef SDTEST
369/* Echo packet generator (pkts/s) */
6998d337 370uint dhd_pktgen;
cf2b4488
HP		 371module_param(dhd_pktgen, uint, 0);
372
373/* Echo packet len (0 => sawtooth, max 2040) */
6998d337 374uint dhd_pktgen_len;
cf2b4488
HP		 375module_param(dhd_pktgen_len, uint, 0);
376#endif
377
cf2b4488
HP		 378#define FAVORITE_WIFI_CP (!!dhd_cfg80211)
379#define IS_CFG80211_FAVORITE() FAVORITE_WIFI_CP
380#define DBG_CFG80211_GET() ((dhd_cfg80211 & WL_DBG_MASK) >> 1)
381#define NO_FW_REQ() (dhd_cfg80211 & 0x80)
cf2b4488
HP		 382
383/* Version string to report */
384#ifdef DHD_DEBUG
385#define DHD_COMPILED "\nCompiled in " SRCBASE
386#else
387#define DHD_COMPILED
388#endif
389
390static char dhd_version[] = "Dongle Host Driver, version " EPI_VERSION_STR
391#ifdef DHD_DEBUG
392"\nCompiled in " " on " __DATE__ " at " __TIME__
393#endif
394;
395
396#if defined(CONFIG_WIRELESS_EXT)
397struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev);
398#endif /* defined(CONFIG_WIRELESS_EXT) */
399
3deea904 400static void dhd_dpc(unsigned long data);
cf2b4488
HP		 401/* forward decl */
402extern int dhd_wait_pend8021x(struct net_device *dev);
403
404#ifdef TOE
405#ifndef BDC
406#error TOE requires BDC
407#endif /* !BDC */
66cbd3ab
GKH		 408static int dhd_toe_get(dhd_info_t *dhd, int idx, u32 *toe_ol);
409static int dhd_toe_set(dhd_info_t *dhd, int idx, u32 toe_ol);
cf2b4488
HP		 410#endif /* TOE */
411
412static int dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
413 wl_event_msg_t *event_ptr, void **data_ptr);
414
415#if defined(CONFIG_PM_SLEEP)
416static int dhd_sleep_pm_callback(struct notifier_block *nfb,
417 unsigned long action, void *ignored)
418{
419 switch (action) {
420 case PM_HIBERNATION_PREPARE:
421 case PM_SUSPEND_PREPARE:
0f0881b0 422 dhd_mmc_suspend = true;
cf2b4488
HP		 423 return NOTIFY_OK;
424 case PM_POST_HIBERNATION:
425 case PM_POST_SUSPEND:
0965ae88 426 dhd_mmc_suspend = false;
cf2b4488
HP		 427 return NOTIFY_OK;
428 }
429 return 0;
430}
431
432static struct notifier_block dhd_sleep_pm_notifier = {
433 .notifier_call = dhd_sleep_pm_callback,
434 .priority = 0
435};
436
437extern int register_pm_notifier(struct notifier_block *nb);
438extern int unregister_pm_notifier(struct notifier_block *nb);
439#endif /* defined(CONFIG_PM_SLEEP) */
440 /* && defined(DHD_GPL) */
441static void dhd_set_packet_filter(int value, dhd_pub_t *dhd)
442{
443#ifdef PKT_FILTER_SUPPORT
444 DHD_TRACE(("%s: %d\n", __func__, value));
445 /* 1 - Enable packet filter, only allow unicast packet to send up */
446 /* 0 - Disable packet filter */
447 if (dhd_pkt_filter_enable) {
448 int i;
449
450 for (i = 0; i < dhd->pktfilter_count; i++) {
451 dhd_pktfilter_offload_set(dhd, dhd->pktfilter[i]);
452 dhd_pktfilter_offload_enable(dhd, dhd->pktfilter[i],
453 value, dhd_master_mode);
454 }
455 }
456#endif
457}
458
459#if defined(CONFIG_HAS_EARLYSUSPEND)
460static int dhd_set_suspend(int value, dhd_pub_t *dhd)
461{
462 int power_mode = PM_MAX;
463 /* wl_pkt_filter_enable_t enable_parm; */
464 char iovbuf[32];
465 int bcn_li_dtim = 3;
466#ifdef CUSTOMER_HW2
467 uint roamvar = 1;
468#endif /* CUSTOMER_HW2 */
469
470 DHD_TRACE(("%s: enter, value = %d in_suspend=%d\n",
471 __func__, value, dhd->in_suspend));
472
473 if (dhd && dhd->up) {
474 if (value && dhd->in_suspend) {
475
476 /* Kernel suspended */
477 DHD_TRACE(("%s: force extra Suspend setting\n",
478 __func__));
479
480 dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM,
481 (char *)&power_mode,
482 sizeof(power_mode));
483
484 /* Enable packet filter, only allow unicast
485 packet to send up */
486 dhd_set_packet_filter(1, dhd);
487
488 /* if dtim skip setup as default force it
489 * to wake each thrid dtim
490 * for better power saving.
491 * Note that side effect is chance to miss BC/MC
492 * packet
493 */
494 if ((dhd->dtim_skip == 0) || (dhd->dtim_skip == 1))
495 bcn_li_dtim = 3;
496 else
497 bcn_li_dtim = dhd->dtim_skip;
498 bcm_mkiovar("bcn_li_dtim", (char *)&bcn_li_dtim,
499 4, iovbuf, sizeof(iovbuf));
500 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
501 sizeof(iovbuf));
502#ifdef CUSTOMER_HW2
503 /* Disable build-in roaming to allowed \
504 * supplicant to take of romaing
505 */
506 bcm_mkiovar("roam_off", (char *)&roamvar, 4,
507 iovbuf, sizeof(iovbuf));
508 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
509 sizeof(iovbuf));
510#endif /* CUSTOMER_HW2 */
511 } else {
512
513 /* Kernel resumed */
514 DHD_TRACE(("%s: Remove extra suspend setting\n",
515 __func__));
516
517 power_mode = PM_FAST;
518 dhdcdc_set_ioctl(dhd, 0, WLC_SET_PM,
519 (char *)&power_mode,
520 sizeof(power_mode));
521
522 /* disable pkt filter */
523 dhd_set_packet_filter(0, dhd);
524
525 /* restore pre-suspend setting for dtim_skip */
526 bcm_mkiovar("bcn_li_dtim", (char *)&dhd->dtim_skip,
527 4, iovbuf, sizeof(iovbuf));
528
529 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
530 sizeof(iovbuf));
531#ifdef CUSTOMER_HW2
532 roamvar = 0;
533 bcm_mkiovar("roam_off", (char *)&roamvar, 4, iovbuf,
534 sizeof(iovbuf));
535 dhdcdc_set_ioctl(dhd, 0, WLC_SET_VAR, iovbuf,
536 sizeof(iovbuf));
537#endif /* CUSTOMER_HW2 */
538 }
539 }
540
541 return 0;
542}
543
544static void dhd_suspend_resume_helper(struct dhd_info *dhd, int val)
545{
546 dhd_pub_t *dhdp = &dhd->pub;
547
548 dhd_os_proto_block(dhdp);
549 /* Set flag when early suspend was called */
550 dhdp->in_suspend = val;
551 if (!dhdp->suspend_disable_flag)
552 dhd_set_suspend(val, dhdp);
553 dhd_os_proto_unblock(dhdp);
554}
555
556static void dhd_early_suspend(struct early_suspend *h)
557{
558 struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
559
560 DHD_TRACE(("%s: enter\n", __func__));
561
562 if (dhd)
563 dhd_suspend_resume_helper(dhd, 1);
564
565}
566
567static void dhd_late_resume(struct early_suspend *h)
568{
569 struct dhd_info *dhd = container_of(h, struct dhd_info, early_suspend);
570
571 DHD_TRACE(("%s: enter\n", __func__));
572
573 if (dhd)
574 dhd_suspend_resume_helper(dhd, 0);
575}
576#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
577
578/*
579 * Generalized timeout mechanism. Uses spin sleep with exponential
580 * back-off until
581 * the sleep time reaches one jiffy, then switches over to task delay. Usage:
582 *
583 * dhd_timeout_start(&tmo, usec);
584 * while (!dhd_timeout_expired(&tmo))
585 * if (poll_something())
586 * break;
587 * if (dhd_timeout_expired(&tmo))
588 * fatal();
589 */
590
591void dhd_timeout_start(dhd_timeout_t *tmo, uint usec)
592{
593 tmo->limit = usec;
594 tmo->increment = 0;
595 tmo->elapsed = 0;
596 tmo->tick = 1000000 / HZ;
597}
598
599int dhd_timeout_expired(dhd_timeout_t *tmo)
600{
601 /* Does nothing the first call */
602 if (tmo->increment == 0) {
603 tmo->increment = 1;
604 return 0;
605 }
606
607 if (tmo->elapsed >= tmo->limit)
608 return 1;
609
610 /* Add the delay that's about to take place */
611 tmo->elapsed += tmo->increment;
612
613 if (tmo->increment < tmo->tick) {
7383141b 614 udelay(tmo->increment);
cf2b4488
HP		 615 tmo->increment *= 2;
616 if (tmo->increment > tmo->tick)
617 tmo->increment = tmo->tick;
618 } else {
619 wait_queue_head_t delay_wait;
620 DECLARE_WAITQUEUE(wait, current);
621 int pending;
622 init_waitqueue_head(&delay_wait);
623 add_wait_queue(&delay_wait, &wait);
624 set_current_state(TASK_INTERRUPTIBLE);
625 schedule_timeout(1);
626 pending = signal_pending(current);
627 remove_wait_queue(&delay_wait, &wait);
628 set_current_state(TASK_RUNNING);
629 if (pending)
630 return 1; /* Interrupted */
631 }
632
633 return 0;
634}
635
636static int dhd_net2idx(dhd_info_t *dhd, struct net_device *net)
637{
638 int i = 0;
639
640 ASSERT(dhd);
641 while (i < DHD_MAX_IFS) {
642 if (dhd->iflist[i] && (dhd->iflist[i]->net == net))
643 return i;
644 i++;
645 }
646
647 return DHD_BAD_IF;
648}
649
650int dhd_ifname2idx(dhd_info_t *dhd, char *name)
651{
652 int i = DHD_MAX_IFS;
653
654 ASSERT(dhd);
655
656 if (name == NULL || *name == '\0')
657 return 0;
658
659 while (--i > 0)
660 if (dhd->iflist[i]
661 && !strncmp(dhd->iflist[i]->name, name, IFNAMSIZ))
662 break;
663
664 DHD_TRACE(("%s: return idx %d for \"%s\"\n", __func__, i, name));
665
666 return i; /* default - the primary interface */
667}
668
669char *dhd_ifname(dhd_pub_t *dhdp, int ifidx)
670{
671 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
672
673 ASSERT(dhd);
674
675 if (ifidx < 0 || ifidx >= DHD_MAX_IFS) {
676 DHD_ERROR(("%s: ifidx %d out of range\n", __func__, ifidx));
677 return "<if_bad>";
678 }
679
680 if (dhd->iflist[ifidx] == NULL) {
681 DHD_ERROR(("%s: null i/f %d\n", __func__, ifidx));
682 return "<if_null>";
683 }
684
685 if (dhd->iflist[ifidx]->net)
686 return dhd->iflist[ifidx]->net->name;
687
688 return "<if_none>";
689}
690
691static void _dhd_set_multicast_list(dhd_info_t *dhd, int ifidx)
692{
693 struct net_device *dev;
694 struct netdev_hw_addr *ha;
66cbd3ab 695 u32 allmulti, cnt;
cf2b4488
HP		 696
697 wl_ioctl_t ioc;
698 char *buf, *bufp;
699 uint buflen;
700 int ret;
701
702 ASSERT(dhd && dhd->iflist[ifidx]);
703 dev = dhd->iflist[ifidx]->net;
704 cnt = netdev_mc_count(dev);
705
706 /* Determine initial value of allmulti flag */
0965ae88 707 allmulti = (dev->flags & IFF_ALLMULTI) ? true : false;
cf2b4488
HP		 708
709 /* Send down the multicast list first. */
710
711 buflen = sizeof("mcast_list") + sizeof(cnt) + (cnt * ETHER_ADDR_LEN);
5fcc1fcb 712 bufp = buf = kmalloc(buflen, GFP_ATOMIC);
a618cc28 713 if (!bufp) {
cf2b4488
HP		 714 DHD_ERROR(("%s: out of memory for mcast_list, cnt %d\n",
715 dhd_ifname(&dhd->pub, ifidx), cnt));
716 return;
717 }
718
719 strcpy(bufp, "mcast_list");
720 bufp += strlen("mcast_list") + 1;
721
722 cnt = htol32(cnt);
723 memcpy(bufp, &cnt, sizeof(cnt));
724 bufp += sizeof(cnt);
725
726 netdev_for_each_mc_addr(ha, dev) {
727 if (!cnt)
728 break;
729 memcpy(bufp, ha->addr, ETHER_ADDR_LEN);
730 bufp += ETHER_ADDR_LEN;
731 cnt--;
732 }
733
734 memset(&ioc, 0, sizeof(ioc));
735 ioc.cmd = WLC_SET_VAR;
736 ioc.buf = buf;
737 ioc.len = buflen;
0f0881b0 738 ioc.set = true;
cf2b4488
HP		 739
740 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
741 if (ret < 0) {
742 DHD_ERROR(("%s: set mcast_list failed, cnt %d\n",
743 dhd_ifname(&dhd->pub, ifidx), cnt));
0f0881b0 744 allmulti = cnt ? true : allmulti;
cf2b4488
HP		 745 }
746
182acb3c 747 kfree(buf);
cf2b4488
HP		 748
749 /* Now send the allmulti setting. This is based on the setting in the
750 * net_device flags, but might be modified above to be turned on if we
751 * were trying to set some addresses and dongle rejected it...
752 */
753
754 buflen = sizeof("allmulti") + sizeof(allmulti);
5fcc1fcb 755 buf = kmalloc(buflen, GFP_ATOMIC);
a618cc28 756 if (!buf) {
cf2b4488
HP		 757 DHD_ERROR(("%s: out of memory for allmulti\n",
758 dhd_ifname(&dhd->pub, ifidx)));
759 return;
760 }
761 allmulti = htol32(allmulti);
762
763 if (!bcm_mkiovar
764 ("allmulti", (void *)&allmulti, sizeof(allmulti), buf, buflen)) {
765 DHD_ERROR(("%s: mkiovar failed for allmulti, datalen %d "
766 "buflen %u\n", dhd_ifname(&dhd->pub, ifidx),
767 (int)sizeof(allmulti), buflen));
182acb3c 768 kfree(buf);
cf2b4488
HP		 769 return;
770 }
771
772 memset(&ioc, 0, sizeof(ioc));
773 ioc.cmd = WLC_SET_VAR;
774 ioc.buf = buf;
775 ioc.len = buflen;
0f0881b0 776 ioc.set = true;
cf2b4488
HP		 777
778 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
779 if (ret < 0) {
780 DHD_ERROR(("%s: set allmulti %d failed\n",
781 dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
782 }
783
182acb3c 784 kfree(buf);
cf2b4488
HP		 785
786 /* Finally, pick up the PROMISC flag as well, like the NIC
787 driver does */
788
0965ae88 789 allmulti = (dev->flags & IFF_PROMISC) ? true : false;
cf2b4488
HP		 790 allmulti = htol32(allmulti);
791
792 memset(&ioc, 0, sizeof(ioc));
793 ioc.cmd = WLC_SET_PROMISC;
794 ioc.buf = &allmulti;
795 ioc.len = sizeof(allmulti);
0f0881b0 796 ioc.set = true;
cf2b4488
HP		 797
798 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
799 if (ret < 0) {
800 DHD_ERROR(("%s: set promisc %d failed\n",
801 dhd_ifname(&dhd->pub, ifidx), ltoh32(allmulti)));
802 }
803}
804
805static int
806_dhd_set_mac_address(dhd_info_t *dhd, int ifidx, struct ether_addr *addr)
807{
808 char buf[32];
809 wl_ioctl_t ioc;
810 int ret;
811
812 DHD_TRACE(("%s enter\n", __func__));
813 if (!bcm_mkiovar
814 ("cur_etheraddr", (char *)addr, ETHER_ADDR_LEN, buf, 32)) {
815 DHD_ERROR(("%s: mkiovar failed for cur_etheraddr\n",
816 dhd_ifname(&dhd->pub, ifidx)));
817 return -1;
818 }
819 memset(&ioc, 0, sizeof(ioc));
820 ioc.cmd = WLC_SET_VAR;
821 ioc.buf = buf;
822 ioc.len = 32;
0f0881b0 823 ioc.set = true;
cf2b4488
HP		 824
825 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
826 if (ret < 0) {
827 DHD_ERROR(("%s: set cur_etheraddr failed\n",
828 dhd_ifname(&dhd->pub, ifidx)));
829 } else {
830 memcpy(dhd->iflist[ifidx]->net->dev_addr, addr, ETHER_ADDR_LEN);
831 }
832
833 return ret;
834}
835
836#ifdef SOFTAP
837extern struct net_device *ap_net_dev;
838#endif
839
840static void dhd_op_if(dhd_if_t *ifp)
841{
842 dhd_info_t *dhd;
843 int ret = 0, err = 0;
844
845 ASSERT(ifp && ifp->info && ifp->idx); /* Virtual interfaces only */
846
847 dhd = ifp->info;
848
849 DHD_TRACE(("%s: idx %d, state %d\n", __func__, ifp->idx, ifp->state));
850
851 switch (ifp->state) {
852 case WLC_E_IF_ADD:
853 /*
854 * Delete the existing interface before overwriting it
855 * in case we missed the WLC_E_IF_DEL event.
856 */
857 if (ifp->net != NULL) {
858 DHD_ERROR(("%s: ERROR: netdev:%s already exists, "
859 "try free & unregister\n",
860 __func__, ifp->net->name));
861 netif_stop_queue(ifp->net);
862 unregister_netdev(ifp->net);
863 free_netdev(ifp->net);
864 }
865 /* Allocate etherdev, including space for private structure */
a618cc28
JC		 866 ifp->net = alloc_etherdev(sizeof(dhd));
867 if (!ifp->net) {
cf2b4488
HP		 868 DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
869 ret = -ENOMEM;
870 }
871 if (ret == 0) {
872 strcpy(ifp->net->name, ifp->name);
873 memcpy(netdev_priv(ifp->net), &dhd, sizeof(dhd));
a618cc28
JC		 874 err = dhd_net_attach(&dhd->pub, ifp->idx);
875 if (err != 0) {
cf2b4488
HP		 876 DHD_ERROR(("%s: dhd_net_attach failed, "
877 "err %d\n",
878 __func__, err));
879 ret = -EOPNOTSUPP;
880 } else {
881#ifdef SOFTAP
882 /* semaphore that the soft AP CODE
883 waits on */
884 extern struct semaphore ap_eth_sema;
885
886 /* save ptr to wl0.1 netdev for use
887 in wl_iw.c */
888 ap_net_dev = ifp->net;
889 /* signal to the SOFTAP 'sleeper' thread,
890 wl0.1 is ready */
891 up(&ap_eth_sema);
892#endif
893 DHD_TRACE(("\n ==== pid:%x, net_device for "
894 "if:%s created ===\n\n",
895 current->pid, ifp->net->name));
896 ifp->state = 0;
897 }
898 }
899 break;
900 case WLC_E_IF_DEL:
901 if (ifp->net != NULL) {
902 DHD_TRACE(("\n%s: got 'WLC_E_IF_DEL' state\n",
903 __func__));
904 netif_stop_queue(ifp->net);
905 unregister_netdev(ifp->net);
906 ret = DHD_DEL_IF; /* Make sure the free_netdev()
907 is called */
908 }
909 break;
910 default:
911 DHD_ERROR(("%s: bad op %d\n", __func__, ifp->state));
912 ASSERT(!ifp->state);
913 break;
914 }
915
916 if (ret < 0) {
917 if (ifp->net)
918 free_netdev(ifp->net);
919
920 dhd->iflist[ifp->idx] = NULL;
182acb3c 921 kfree(ifp);
cf2b4488
HP		 922#ifdef SOFTAP
923 if (ifp->net == ap_net_dev)
924 ap_net_dev = NULL; /* NULL SOFTAP global
925 wl0.1 as well */
926#endif /* SOFTAP */
927 }
928}
929
930static int _dhd_sysioc_thread(void *data)
931{
932 dhd_info_t *dhd = (dhd_info_t *) data;
933 int i;
934#ifdef SOFTAP
0965ae88 935 bool in_ap = false;
cf2b4488
HP		 936#endif
937
af737136 938 allow_signal(SIGTERM);
939
cf2b4488 940 while (down_interruptible(&dhd->sysioc_sem) == 0) {
eeb8e46b 941 if (kthread_should_stop())
d809dcb9 942 break;
cf2b4488
HP		 943 for (i = 0; i < DHD_MAX_IFS; i++) {
944 if (dhd->iflist[i]) {
945#ifdef SOFTAP
946 in_ap = (ap_net_dev != NULL);
947#endif /* SOFTAP */
948 if (dhd->iflist[i]->state)
949 dhd_op_if(dhd->iflist[i]);
950#ifdef SOFTAP
951 if (dhd->iflist[i] == NULL) {
952 DHD_TRACE(("\n\n %s: interface %d "
953 "removed!\n", __func__, i));
954 continue;
955 }
956
957 if (in_ap && dhd->set_macaddress) {
958 DHD_TRACE(("attempt to set MAC for %s "
959 "in AP Mode," "blocked. \n",
960 dhd->iflist[i]->net->name));
0965ae88 961 dhd->set_macaddress = false;
cf2b4488
HP		 962 continue;
963 }
964
965 if (in_ap && dhd->set_multicast) {
966 DHD_TRACE(("attempt to set MULTICAST list for %s" "in AP Mode, blocked. \n",
967 dhd->iflist[i]->net->name));
0965ae88 968 dhd->set_multicast = false;
cf2b4488
HP		 969 continue;
970 }
971#endif /* SOFTAP */
972 if (dhd->set_multicast) {
0965ae88 973 dhd->set_multicast = false;
cf2b4488
HP		 974 _dhd_set_multicast_list(dhd, i);
975 }
976 if (dhd->set_macaddress) {
0965ae88 977 dhd->set_macaddress = false;
cf2b4488
HP		 978 _dhd_set_mac_address(dhd, i,
979 &dhd->macvalue);
980 }
981 }
982 }
983 }
d809dcb9 984 return 0;
cf2b4488
HP		 985}
986
987static int dhd_set_mac_address(struct net_device *dev, void *addr)
988{
989 int ret = 0;
990
991 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
992 struct sockaddr *sa = (struct sockaddr *)addr;
993 int ifidx;
994
995 ifidx = dhd_net2idx(dhd, dev);
996 if (ifidx == DHD_BAD_IF)
997 return -1;
998
d809dcb9 999 ASSERT(dhd->sysioc_tsk);
cf2b4488 1000 memcpy(&dhd->macvalue, sa->sa_data, ETHER_ADDR_LEN);
0f0881b0 1001 dhd->set_macaddress = true;
cf2b4488
HP		 1002 up(&dhd->sysioc_sem);
1003
1004 return ret;
1005}
1006
1007static void dhd_set_multicast_list(struct net_device *dev)
1008{
1009 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
1010 int ifidx;
1011
1012 ifidx = dhd_net2idx(dhd, dev);
1013 if (ifidx == DHD_BAD_IF)
1014 return;
1015
d809dcb9 1016 ASSERT(dhd->sysioc_tsk);
0f0881b0 1017 dhd->set_multicast = true;
cf2b4488
HP		 1018 up(&dhd->sysioc_sem);
1019}
1020
1021int dhd_sendpkt(dhd_pub_t *dhdp, int ifidx, void *pktbuf)
1022{
1023 int ret;
1024 dhd_info_t *dhd = (dhd_info_t *) (dhdp->info);
1025
1026 /* Reject if down */
1027 if (!dhdp->up || (dhdp->busstate == DHD_BUS_DOWN))
1028 return -ENODEV;
1029
1030 /* Update multicast statistic */
1031 if (PKTLEN(pktbuf) >= ETHER_ADDR_LEN) {
3fd79f7c 1032 u8 *pktdata = (u8 *) PKTDATA(pktbuf);
cf2b4488
HP		 1033 struct ether_header *eh = (struct ether_header *)pktdata;
1034
1035 if (ETHER_ISMULTI(eh->ether_dhost))
1036 dhdp->tx_multicast++;
1037 if (ntoh16(eh->ether_type) == ETHER_TYPE_802_1X)
1038 atomic_inc(&dhd->pend_8021x_cnt);
1039 }
1040
cf2b4488
HP		 1041 /* If the protocol uses a data header, apply it */
1042 dhd_prot_hdrpush(dhdp, ifidx, pktbuf);
1043
1044 /* Use bus module to send data frame */
1045#ifdef BCMDBUS
1046 ret = dbus_send_pkt(dhdp->dbus, pktbuf, NULL /* pktinfo */);
1047#else
1048 WAKE_LOCK_TIMEOUT(dhdp, WAKE_LOCK_TMOUT, 25);
1049 ret = dhd_bus_txdata(dhdp->bus, pktbuf);
1050#endif /* BCMDBUS */
1051
1052 return ret;
1053}
1054
1055static int dhd_start_xmit(struct sk_buff *skb, struct net_device *net)
1056{
1057 int ret;
1058 void *pktbuf;
1059 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1060 int ifidx;
1061
1062 DHD_TRACE(("%s: Enter\n", __func__));
1063
1064 /* Reject if down */
1065 if (!dhd->pub.up || (dhd->pub.busstate == DHD_BUS_DOWN)) {
1066 DHD_ERROR(("%s: xmit rejected pub.up=%d busstate=%d\n",
1067 __func__, dhd->pub.up, dhd->pub.busstate));
1068 netif_stop_queue(net);
1069 return -ENODEV;
1070 }
1071
1072 ifidx = dhd_net2idx(dhd, net);
1073 if (ifidx == DHD_BAD_IF) {
1074 DHD_ERROR(("%s: bad ifidx %d\n", __func__, ifidx));
1075 netif_stop_queue(net);
1076 return -ENODEV;
1077 }
1078
1079 /* Make sure there's enough room for any header */
1080 if (skb_headroom(skb) < dhd->pub.hdrlen) {
1081 struct sk_buff *skb2;
1082
1083 DHD_INFO(("%s: insufficient headroom\n",
1084 dhd_ifname(&dhd->pub, ifidx)));
1085 dhd->pub.tx_realloc++;
1086 skb2 = skb_realloc_headroom(skb, dhd->pub.hdrlen);
1087 dev_kfree_skb(skb);
a618cc28
JC		 1088 skb = skb2;
1089 if (skb == NULL) {
cf2b4488
HP		 1090 DHD_ERROR(("%s: skb_realloc_headroom failed\n",
1091 dhd_ifname(&dhd->pub, ifidx)));
1092 ret = -ENOMEM;
1093 goto done;
1094 }
1095 }
1096
1097 /* Convert to packet */
a618cc28
JC		 1098 pktbuf = PKTFRMNATIVE(dhd->pub.osh, skb);
1099 if (!pktbuf) {
cf2b4488
HP		 1100 DHD_ERROR(("%s: PKTFRMNATIVE failed\n",
1101 dhd_ifname(&dhd->pub, ifidx)));
1102 dev_kfree_skb_any(skb);
1103 ret = -ENOMEM;
1104 goto done;
1105 }
1106
1107 ret = dhd_sendpkt(&dhd->pub, ifidx, pktbuf);
1108
1109done:
1110 if (ret)
1111 dhd->pub.dstats.tx_dropped++;
1112 else
1113 dhd->pub.tx_packets++;
1114
1115 /* Return ok: we always eat the packet */
1116 return 0;
1117}
1118
1119void dhd_txflowcontrol(dhd_pub_t *dhdp, int ifidx, bool state)
1120{
1121 struct net_device *net;
1122 dhd_info_t *dhd = dhdp->info;
1123
1124 DHD_TRACE(("%s: Enter\n", __func__));
1125
1126 dhdp->txoff = state;
1127 ASSERT(dhd && dhd->iflist[ifidx]);
1128 net = dhd->iflist[ifidx]->net;
1129 if (state == ON)
1130 netif_stop_queue(net);
1131 else
1132 netif_wake_queue(net);
1133}
1134
1135void dhd_rx_frame(dhd_pub_t *dhdp, int ifidx, void *pktbuf, int numpkt)
1136{
1137 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
1138 struct sk_buff *skb;
580a0bd9 1139 unsigned char *eth;
cf2b4488
HP		 1140 uint len;
1141 void *data, *pnext, *save_pktbuf;
1142 int i;
1143 dhd_if_t *ifp;
1144 wl_event_msg_t event;
1145
1146 DHD_TRACE(("%s: Enter\n", __func__));
1147
1148 save_pktbuf = pktbuf;
1149
1150 for (i = 0; pktbuf && i < numpkt; i++, pktbuf = pnext) {
1151
1152 pnext = PKTNEXT(pktbuf);
1153 PKTSETNEXT(pktbuf, NULL);
1154
1155 skb = PKTTONATIVE(dhdp->osh, pktbuf);
1156
1157 /* Get the protocol, maintain skb around eth_type_trans()
1158 * The main reason for this hack is for the limitation of
1159 * Linux 2.4 where 'eth_type_trans' uses the
1160 * 'net->hard_header_len'
1161 * to perform skb_pull inside vs ETH_HLEN. Since to avoid
1162 * coping of the packet coming from the network stack to add
1163 * BDC, Hardware header etc, during network interface
1164 * registration
1165 * we set the 'net->hard_header_len' to ETH_HLEN + extra space
1166 * required
1167 * for BDC, Hardware header etc. and not just the ETH_HLEN
1168 */
1169 eth = skb->data;
1170 len = skb->len;
1171
1172 ifp = dhd->iflist[ifidx];
1173 if (ifp == NULL)
1174 ifp = dhd->iflist[0];
1175
1176 ASSERT(ifp);
1177 skb->dev = ifp->net;
1178 skb->protocol = eth_type_trans(skb, skb->dev);
1179
1180 if (skb->pkt_type == PACKET_MULTICAST)
1181 dhd->pub.rx_multicast++;
1182
1183 skb->data = eth;
1184 skb->len = len;
1185
1186 /* Strip header, count, deliver upward */
1187 skb_pull(skb, ETH_HLEN);
1188
1189 /* Process special event packets and then discard them */
1190 if (ntoh16(skb->protocol) == ETHER_TYPE_BRCM)
1191 dhd_wl_host_event(dhd, &ifidx,
1192 skb->mac_header,
1193 &event, &data);
1194
1195 ASSERT(ifidx < DHD_MAX_IFS && dhd->iflist[ifidx]);
1196 if (dhd->iflist[ifidx] && !dhd->iflist[ifidx]->state)
1197 ifp = dhd->iflist[ifidx];
1198
1199 if (ifp->net)
1200 ifp->net->last_rx = jiffies;
1201
1202 dhdp->dstats.rx_bytes += skb->len;
1203 dhdp->rx_packets++; /* Local count */
1204
1205 if (in_interrupt()) {
1206 netif_rx(skb);
1207 } else {
1208 /* If the receive is not processed inside an ISR,
1209 * the softirqd must be woken explicitly to service
1210 * the NET_RX_SOFTIRQ. In 2.6 kernels, this is handled
1211 * by netif_rx_ni(), but in earlier kernels, we need
1212 * to do it manually.
1213 */
1214 netif_rx_ni(skb);
1215 }
1216 }
1217}
1218
1219void dhd_event(struct dhd_info *dhd, char *evpkt, int evlen, int ifidx)
1220{
1221 /* Linux version has nothing to do */
1222 return;
1223}
1224
1225void dhd_txcomplete(dhd_pub_t *dhdp, void *txp, bool success)
1226{
1227 uint ifidx;
1228 dhd_info_t *dhd = (dhd_info_t *) (dhdp->info);
1229 struct ether_header *eh;
7d4df48e 1230 u16 type;
cf2b4488
HP		 1231
1232 dhd_prot_hdrpull(dhdp, &ifidx, txp);
1233
1234 eh = (struct ether_header *)PKTDATA(txp);
1235 type = ntoh16(eh->ether_type);
1236
1237 if (type == ETHER_TYPE_802_1X)
1238 atomic_dec(&dhd->pend_8021x_cnt);
1239
1240}
1241
1242static struct net_device_stats *dhd_get_stats(struct net_device *net)
1243{
1244 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1245 dhd_if_t *ifp;
1246 int ifidx;
1247
1248 DHD_TRACE(("%s: Enter\n", __func__));
1249
1250 ifidx = dhd_net2idx(dhd, net);
1251 if (ifidx == DHD_BAD_IF)
1252 return NULL;
1253
1254 ifp = dhd->iflist[ifidx];
1255 ASSERT(dhd && ifp);
1256
1257 if (dhd->pub.up) {
1258 /* Use the protocol to get dongle stats */
1259 dhd_prot_dstats(&dhd->pub);
1260 }
1261
1262 /* Copy dongle stats to net device stats */
1263 ifp->stats.rx_packets = dhd->pub.dstats.rx_packets;
1264 ifp->stats.tx_packets = dhd->pub.dstats.tx_packets;
1265 ifp->stats.rx_bytes = dhd->pub.dstats.rx_bytes;
1266 ifp->stats.tx_bytes = dhd->pub.dstats.tx_bytes;
1267 ifp->stats.rx_errors = dhd->pub.dstats.rx_errors;
1268 ifp->stats.tx_errors = dhd->pub.dstats.tx_errors;
1269 ifp->stats.rx_dropped = dhd->pub.dstats.rx_dropped;
1270 ifp->stats.tx_dropped = dhd->pub.dstats.tx_dropped;
1271 ifp->stats.multicast = dhd->pub.dstats.multicast;
1272
1273 return &ifp->stats;
1274}
1275
1276static int dhd_watchdog_thread(void *data)
1277{
1278 dhd_info_t *dhd = (dhd_info_t *) data;
1279 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_WATCHDOG, "dhd_watchdog_thread");
1280
1281 /* This thread doesn't need any user-level access,
1282 * so get rid of all our resources
1283 */
1284#ifdef DHD_SCHED
1285 if (dhd_watchdog_prio > 0) {
1286 struct sched_param param;
1287 param.sched_priority = (dhd_watchdog_prio < MAX_RT_PRIO) ?
1288 dhd_watchdog_prio : (MAX_RT_PRIO - 1);
1289 setScheduler(current, SCHED_FIFO, &param);
1290 }
1291#endif /* DHD_SCHED */
1292
af737136 1293 allow_signal(SIGTERM);
cf2b4488
HP		 1294 /* Run until signal received */
1295 while (1) {
860708d9
JC		 1296 if (kthread_should_stop())
1297 break;
cf2b4488 1298 if (down_interruptible(&dhd->watchdog_sem) == 0) {
0965ae88 1299 if (dhd->pub.dongle_reset == false) {
cf2b4488
HP		 1300 WAKE_LOCK(&dhd->pub, WAKE_LOCK_WATCHDOG);
1301 /* Call the bus module watchdog */
1302 dhd_bus_watchdog(&dhd->pub);
1303 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_WATCHDOG);
1304 }
1305 /* Count the tick for reference */
1306 dhd->pub.tickcnt++;
1307 } else
1308 break;
1309 }
1310
1311 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_WATCHDOG);
860708d9 1312 return 0;
cf2b4488
HP		 1313}
1314
3deea904 1315static void dhd_watchdog(unsigned long data)
cf2b4488
HP		 1316{
1317 dhd_info_t *dhd = (dhd_info_t *) data;
1318
860708d9 1319 if (dhd->watchdog_tsk) {
cf2b4488
HP		 1320 up(&dhd->watchdog_sem);
1321
1322 /* Reschedule the watchdog */
1323 if (dhd->wd_timer_valid) {
1324 mod_timer(&dhd->timer,
1325 jiffies + dhd_watchdog_ms * HZ / 1000);
1326 }
1327 return;
1328 }
1329
1330 /* Call the bus module watchdog */
1331 dhd_bus_watchdog(&dhd->pub);
1332
1333 /* Count the tick for reference */
1334 dhd->pub.tickcnt++;
1335
1336 /* Reschedule the watchdog */
1337 if (dhd->wd_timer_valid)
1338 mod_timer(&dhd->timer, jiffies + dhd_watchdog_ms * HZ / 1000);
1339}
1340
1341static int dhd_dpc_thread(void *data)
1342{
1343 dhd_info_t *dhd = (dhd_info_t *) data;
1344
1345 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_DPC, "dhd_dpc_thread");
1346 /* This thread doesn't need any user-level access,
1347 * so get rid of all our resources
1348 */
1349#ifdef DHD_SCHED
1350 if (dhd_dpc_prio > 0) {
1351 struct sched_param param;
1352 param.sched_priority =
1353 (dhd_dpc_prio <
1354 MAX_RT_PRIO) ? dhd_dpc_prio : (MAX_RT_PRIO - 1);
1355 setScheduler(current, SCHED_FIFO, &param);
1356 }
1357#endif /* DHD_SCHED */
1358
af737136 1359 allow_signal(SIGTERM);
cf2b4488
HP		 1360 /* Run until signal received */
1361 while (1) {
eeb8e46b 1362 if (kthread_should_stop())
ecd7559d 1363 break;
cf2b4488
HP		 1364 if (down_interruptible(&dhd->dpc_sem) == 0) {
1365 /* Call bus dpc unless it indicated down
1366 (then clean stop) */
1367 if (dhd->pub.busstate != DHD_BUS_DOWN) {
1368 WAKE_LOCK(&dhd->pub, WAKE_LOCK_DPC);
1369 if (dhd_bus_dpc(dhd->pub.bus)) {
1370 up(&dhd->dpc_sem);
1371 WAKE_LOCK_TIMEOUT(&dhd->pub,
1372 WAKE_LOCK_TMOUT, 25);
1373 }
1374 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_DPC);
1375 } else {
0f0881b0 1376 dhd_bus_stop(dhd->pub.bus, true);
cf2b4488
HP		 1377 }
1378 } else
1379 break;
1380 }
1381
1382 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_DPC);
ecd7559d 1383 return 0;
cf2b4488
HP		 1384}
1385
3deea904 1386static void dhd_dpc(unsigned long data)
cf2b4488
HP		 1387{
1388 dhd_info_t *dhd;
1389
1390 dhd = (dhd_info_t *) data;
1391
1392 /* Call bus dpc unless it indicated down (then clean stop) */
1393 if (dhd->pub.busstate != DHD_BUS_DOWN) {
1394 if (dhd_bus_dpc(dhd->pub.bus))
1395 tasklet_schedule(&dhd->tasklet);
1396 } else {
0f0881b0 1397 dhd_bus_stop(dhd->pub.bus, true);
cf2b4488
HP		 1398 }
1399}
1400
1401void dhd_sched_dpc(dhd_pub_t *dhdp)
1402{
1403 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
1404
ecd7559d 1405 if (dhd->dpc_tsk) {
cf2b4488
HP		 1406 up(&dhd->dpc_sem);
1407 return;
1408 }
1409
1410 tasklet_schedule(&dhd->tasklet);
1411}
1412
1413#ifdef TOE
1414/* Retrieve current toe component enables, which are kept
1415 as a bitmap in toe_ol iovar */
66cbd3ab 1416static int dhd_toe_get(dhd_info_t *dhd, int ifidx, u32 *toe_ol)
cf2b4488
HP		 1417{
1418 wl_ioctl_t ioc;
1419 char buf[32];
1420 int ret;
1421
1422 memset(&ioc, 0, sizeof(ioc));
1423
1424 ioc.cmd = WLC_GET_VAR;
1425 ioc.buf = buf;
1426 ioc.len = (uint) sizeof(buf);
0965ae88 1427 ioc.set = false;
cf2b4488
HP		 1428
1429 strcpy(buf, "toe_ol");
a618cc28
JC		 1430 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1431 if (ret < 0) {
cf2b4488
HP		 1432 /* Check for older dongle image that doesn't support toe_ol */
1433 if (ret == -EIO) {
1434 DHD_ERROR(("%s: toe not supported by device\n",
1435 dhd_ifname(&dhd->pub, ifidx)));
1436 return -EOPNOTSUPP;
1437 }
1438
1439 DHD_INFO(("%s: could not get toe_ol: ret=%d\n",
1440 dhd_ifname(&dhd->pub, ifidx), ret));
1441 return ret;
1442 }
1443
66cbd3ab 1444 memcpy(toe_ol, buf, sizeof(u32));
cf2b4488
HP		 1445 return 0;
1446}
1447
1448/* Set current toe component enables in toe_ol iovar,
1449 and set toe global enable iovar */
66cbd3ab 1450static int dhd_toe_set(dhd_info_t *dhd, int ifidx, u32 toe_ol)
cf2b4488
HP		 1451{
1452 wl_ioctl_t ioc;
1453 char buf[32];
1454 int toe, ret;
1455
1456 memset(&ioc, 0, sizeof(ioc));
1457
1458 ioc.cmd = WLC_SET_VAR;
1459 ioc.buf = buf;
1460 ioc.len = (uint) sizeof(buf);
0f0881b0 1461 ioc.set = true;
cf2b4488
HP		 1462
1463 /* Set toe_ol as requested */
1464
1465 strcpy(buf, "toe_ol");
66cbd3ab 1466 memcpy(&buf[sizeof("toe_ol")], &toe_ol, sizeof(u32));
cf2b4488 1467
a618cc28
JC		 1468 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1469 if (ret < 0) {
cf2b4488
HP		 1470 DHD_ERROR(("%s: could not set toe_ol: ret=%d\n",
1471 dhd_ifname(&dhd->pub, ifidx), ret));
1472 return ret;
1473 }
1474
1475 /* Enable toe globally only if any components are enabled. */
1476
1477 toe = (toe_ol != 0);
1478
1479 strcpy(buf, "toe");
66cbd3ab 1480 memcpy(&buf[sizeof("toe")], &toe, sizeof(u32));
cf2b4488 1481
a618cc28
JC		 1482 ret = dhd_prot_ioctl(&dhd->pub, ifidx, &ioc, ioc.buf, ioc.len);
1483 if (ret < 0) {
cf2b4488
HP		 1484 DHD_ERROR(("%s: could not set toe: ret=%d\n",
1485 dhd_ifname(&dhd->pub, ifidx), ret));
1486 return ret;
1487 }
1488
1489 return 0;
1490}
1491#endif /* TOE */
1492
1493static void dhd_ethtool_get_drvinfo(struct net_device *net,
1494 struct ethtool_drvinfo *info)
1495{
1496 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1497
93ad12cf 1498 sprintf(info->driver, DRV_MODULE_NAME);
cf2b4488 1499 sprintf(info->version, "%lu", dhd->pub.drv_version);
93ad12cf 1500 sprintf(info->fw_version, "%s", wl_cfg80211_get_fwname());
1501 sprintf(info->bus_info, "%s", dev_name(&wl_cfg80211_get_sdio_func()->dev));
cf2b4488
HP		 1502}
1503
1504struct ethtool_ops dhd_ethtool_ops = {
1505 .get_drvinfo = dhd_ethtool_get_drvinfo
1506};
1507
1508static int dhd_ethtool(dhd_info_t *dhd, void *uaddr)
1509{
1510 struct ethtool_drvinfo info;
1511 char drvname[sizeof(info.driver)];
66cbd3ab 1512 u32 cmd;
cf2b4488
HP		 1513#ifdef TOE
1514 struct ethtool_value edata;
66cbd3ab 1515 u32 toe_cmpnt, csum_dir;
cf2b4488
HP		 1516 int ret;
1517#endif
1518
1519 DHD_TRACE(("%s: Enter\n", __func__));
1520
1521 /* all ethtool calls start with a cmd word */
66cbd3ab 1522 if (copy_from_user(&cmd, uaddr, sizeof(u32)))
cf2b4488
HP		 1523 return -EFAULT;
1524
1525 switch (cmd) {
1526 case ETHTOOL_GDRVINFO:
1527 /* Copy out any request driver name */
1528 if (copy_from_user(&info, uaddr, sizeof(info)))
1529 return -EFAULT;
1530 strncpy(drvname, info.driver, sizeof(info.driver));
1531 drvname[sizeof(info.driver) - 1] = '\0';
1532
1533 /* clear struct for return */
1534 memset(&info, 0, sizeof(info));
1535 info.cmd = cmd;
1536
1537 /* if dhd requested, identify ourselves */
1538 if (strcmp(drvname, "?dhd") == 0) {
1539 sprintf(info.driver, "dhd");
1540 strcpy(info.version, EPI_VERSION_STR);
1541 }
1542
1543 /* otherwise, require dongle to be up */
1544 else if (!dhd->pub.up) {
1545 DHD_ERROR(("%s: dongle is not up\n", __func__));
1546 return -ENODEV;
1547 }
1548
1549 /* finally, report dongle driver type */
1550 else if (dhd->pub.iswl)
1551 sprintf(info.driver, "wl");
1552 else
1553 sprintf(info.driver, "xx");
1554
1555 sprintf(info.version, "%lu", dhd->pub.drv_version);
1556 if (copy_to_user(uaddr, &info, sizeof(info)))
1557 return -EFAULT;
1558 DHD_CTL(("%s: given %*s, returning %s\n", __func__,
1559 (int)sizeof(drvname), drvname, info.driver));
1560 break;
1561
1562#ifdef TOE
1563 /* Get toe offload components from dongle */
1564 case ETHTOOL_GRXCSUM:
1565 case ETHTOOL_GTXCSUM:
a618cc28
JC		 1566 ret = dhd_toe_get(dhd, 0, &toe_cmpnt);
1567 if (ret < 0)
cf2b4488
HP		 1568 return ret;
1569
1570 csum_dir =
1571 (cmd == ETHTOOL_GTXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
1572
1573 edata.cmd = cmd;
1574 edata.data = (toe_cmpnt & csum_dir) ? 1 : 0;
1575
1576 if (copy_to_user(uaddr, &edata, sizeof(edata)))
1577 return -EFAULT;
1578 break;
1579
1580 /* Set toe offload components in dongle */
1581 case ETHTOOL_SRXCSUM:
1582 case ETHTOOL_STXCSUM:
1583 if (copy_from_user(&edata, uaddr, sizeof(edata)))
1584 return -EFAULT;
1585
1586 /* Read the current settings, update and write back */
a618cc28
JC		 1587 ret = dhd_toe_get(dhd, 0, &toe_cmpnt);
1588 if (ret < 0)
cf2b4488
HP		 1589 return ret;
1590
1591 csum_dir =
1592 (cmd == ETHTOOL_STXCSUM) ? TOE_TX_CSUM_OL : TOE_RX_CSUM_OL;
1593
1594 if (edata.data != 0)
1595 toe_cmpnt |= csum_dir;
1596 else
1597 toe_cmpnt &= ~csum_dir;
1598
a618cc28
JC		 1599 ret = dhd_toe_set(dhd, 0, toe_cmpnt);
1600 if (ret < 0)
cf2b4488
HP		 1601 return ret;
1602
1603 /* If setting TX checksum mode, tell Linux the new mode */
1604 if (cmd == ETHTOOL_STXCSUM) {
1605 if (edata.data)
1606 dhd->iflist[0]->net->features |=
1607 NETIF_F_IP_CSUM;
1608 else
1609 dhd->iflist[0]->net->features &=
1610 ~NETIF_F_IP_CSUM;
1611 }
1612
1613 break;
1614#endif /* TOE */
1615
1616 default:
1617 return -EOPNOTSUPP;
1618 }
1619
1620 return 0;
1621}
1622
1623static int dhd_ioctl_entry(struct net_device *net, struct ifreq *ifr, int cmd)
1624{
1625 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1626 dhd_ioctl_t ioc;
1627 int bcmerror = 0;
1628 int buflen = 0;
1629 void *buf = NULL;
1630 uint driver = 0;
1631 int ifidx;
1632 bool is_set_key_cmd;
1633
1634 ifidx = dhd_net2idx(dhd, net);
1635 DHD_TRACE(("%s: ifidx %d, cmd 0x%04x\n", __func__, ifidx, cmd));
1636
1637 if (ifidx == DHD_BAD_IF)
1638 return -1;
1639
1640#if defined(CONFIG_WIRELESS_EXT)
1641 /* linux wireless extensions */
1642 if ((cmd >= SIOCIWFIRST) && (cmd <= SIOCIWLAST)) {
1643 /* may recurse, do NOT lock */
1644 return wl_iw_ioctl(net, ifr, cmd);
1645 }
1646#endif /* defined(CONFIG_WIRELESS_EXT) */
1647
1648 if (cmd == SIOCETHTOOL)
1649 return dhd_ethtool(dhd, (void *)ifr->ifr_data);
1650
1651 if (cmd != SIOCDEVPRIVATE)
1652 return -EOPNOTSUPP;
1653
1654 memset(&ioc, 0, sizeof(ioc));
1655
1656 /* Copy the ioc control structure part of ioctl request */
1657 if (copy_from_user(&ioc, ifr->ifr_data, sizeof(wl_ioctl_t))) {
1658 bcmerror = -BCME_BADADDR;
1659 goto done;
1660 }
1661
1662 /* Copy out any buffer passed */
1663 if (ioc.buf) {
53e974db 1664 buflen = min_t(int, ioc.len, DHD_IOCTL_MAXLEN);
cf2b4488
HP		 1665 /* optimization for direct ioctl calls from kernel */
1666 /*
1667 if (segment_eq(get_fs(), KERNEL_DS)) {
1668 buf = ioc.buf;
1669 } else {
1670 */
1671 {
5fcc1fcb 1672 buf = kmalloc(buflen, GFP_ATOMIC);
a618cc28 1673 if (!buf) {
cf2b4488
HP		 1674 bcmerror = -BCME_NOMEM;
1675 goto done;
1676 }
1677 if (copy_from_user(buf, ioc.buf, buflen)) {
1678 bcmerror = -BCME_BADADDR;
1679 goto done;
1680 }
1681 }
1682 }
1683
1684 /* To differentiate between wl and dhd read 4 more byes */
1685 if ((copy_from_user(&driver, (char *)ifr->ifr_data + sizeof(wl_ioctl_t),
1686 sizeof(uint)) != 0)) {
1687 bcmerror = -BCME_BADADDR;
1688 goto done;
1689 }
1690
1691 if (!capable(CAP_NET_ADMIN)) {
1692 bcmerror = -BCME_EPERM;
1693 goto done;
1694 }
1695
1696 /* check for local dhd ioctl and handle it */
1697 if (driver == DHD_IOCTL_MAGIC) {
1698 bcmerror = dhd_ioctl((void *)&dhd->pub, &ioc, buf, buflen);
1699 if (bcmerror)
1700 dhd->pub.bcmerror = bcmerror;
1701 goto done;
1702 }
1703
1704 /* send to dongle (must be up, and wl) */
1705 if ((dhd->pub.busstate != DHD_BUS_DATA)) {
1706 DHD_ERROR(("%s DONGLE_DOWN,__func__\n", __func__));
1707 bcmerror = BCME_DONGLE_DOWN;
1708 goto done;
1709 }
1710
1711 if (!dhd->pub.iswl) {
1712 bcmerror = BCME_DONGLE_DOWN;
1713 goto done;
1714 }
1715
1716 /* Intercept WLC_SET_KEY IOCTL - serialize M4 send and set key IOCTL to
1717 * prevent M4 encryption.
1718 */
1719 is_set_key_cmd = ((ioc.cmd == WLC_SET_KEY) ||
1720 ((ioc.cmd == WLC_SET_VAR) &&
1721 !(strncmp("wsec_key", ioc.buf, 9))) ||
1722 ((ioc.cmd == WLC_SET_VAR) &&
1723 !(strncmp("bsscfg:wsec_key", ioc.buf, 15))));
1724 if (is_set_key_cmd)
1725 dhd_wait_pend8021x(net);
1726
1727 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_IOCTL, "dhd_ioctl_entry");
1728 WAKE_LOCK(&dhd->pub, WAKE_LOCK_IOCTL);
1729
1730 bcmerror =
1731 dhd_prot_ioctl(&dhd->pub, ifidx, (wl_ioctl_t *)&ioc, buf, buflen);
1732
1733 WAKE_UNLOCK(&dhd->pub, WAKE_LOCK_IOCTL);
1734 WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_IOCTL);
1735done:
1736 if (!bcmerror && buf && ioc.buf) {
1737 if (copy_to_user(ioc.buf, buf, buflen))
1738 bcmerror = -EFAULT;
1739 }
1740
1741 if (buf)
182acb3c 1742 kfree(buf);
cf2b4488
HP		 1743
1744 return OSL_ERROR(bcmerror);
1745}
1746
1747static int dhd_stop(struct net_device *net)
1748{
1749#if !defined(IGNORE_ETH0_DOWN)
1750 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1751
1752 DHD_TRACE(("%s: Enter\n", __func__));
cf2b4488
HP		 1753 if (IS_CFG80211_FAVORITE()) {
1754 wl_cfg80211_down();
1755 }
cf2b4488
HP		 1756 if (dhd->pub.up == 0)
1757 return 0;
1758
1759 /* Set state and stop OS transmissions */
1760 dhd->pub.up = 0;
1761 netif_stop_queue(net);
1762#else
1763 DHD_ERROR(("BYPASS %s:due to BRCM compilation : under investigation\n",
1764 __func__));
1765#endif /* !defined(IGNORE_ETH0_DOWN) */
1766
cf2b4488
HP		 1767 return 0;
1768}
1769
1770static int dhd_open(struct net_device *net)
1771{
1772 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(net);
1773#ifdef TOE
66cbd3ab 1774 u32 toe_ol;
cf2b4488
HP		 1775#endif
1776 int ifidx = dhd_net2idx(dhd, net);
3e26416e 1777 s32 ret = 0;
cf2b4488
HP		 1778
1779 DHD_TRACE(("%s: ifidx %d\n", __func__, ifidx));
1780
1781 if (ifidx == 0) { /* do it only for primary eth0 */
1782
1783 /* try to bring up bus */
a618cc28
JC		 1784 ret = dhd_bus_start(&dhd->pub);
1785 if (ret != 0) {
cf2b4488
HP		 1786 DHD_ERROR(("%s: failed with code %d\n", __func__, ret));
1787 return -1;
1788 }
1789 atomic_set(&dhd->pend_8021x_cnt, 0);
1790
1791 memcpy(net->dev_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
1792
1793#ifdef TOE
1794 /* Get current TOE mode from dongle */
1795 if (dhd_toe_get(dhd, ifidx, &toe_ol) >= 0
1796 && (toe_ol & TOE_TX_CSUM_OL) != 0)
1797 dhd->iflist[ifidx]->net->features |= NETIF_F_IP_CSUM;
1798 else
1799 dhd->iflist[ifidx]->net->features &= ~NETIF_F_IP_CSUM;
1800#endif
1801 }
1802 /* Allow transmit calls */
1803 netif_start_queue(net);
1804 dhd->pub.up = 1;
cf2b4488
HP		 1805 if (IS_CFG80211_FAVORITE()) {
1806 if (unlikely(wl_cfg80211_up())) {
1807 DHD_ERROR(("%s: failed to bring up cfg80211\n",
1808 __func__));
1809 return -1;
1810 }
1811 }
cf2b4488 1812
cf2b4488
HP		 1813 return ret;
1814}
1815
1816osl_t *dhd_osl_attach(void *pdev, uint bustype)
1817{
0f0881b0 1818 return osl_attach(pdev, bustype, true);
cf2b4488
HP		 1819}
1820
1821void dhd_osl_detach(osl_t *osh)
1822{
cf2b4488
HP		 1823 osl_detach(osh);
1824}
1825
1826int
1827dhd_add_if(dhd_info_t *dhd, int ifidx, void *handle, char *name,
66cbd3ab 1828 u8 *mac_addr, u32 flags, u8 bssidx)
cf2b4488
HP		 1829{
1830 dhd_if_t *ifp;
1831
1832 DHD_TRACE(("%s: idx %d, handle->%p\n", __func__, ifidx, handle));
1833
1834 ASSERT(dhd && (ifidx < DHD_MAX_IFS));
1835
1836 ifp = dhd->iflist[ifidx];
5fcc1fcb 1837 if (!ifp && !(ifp = kmalloc(sizeof(dhd_if_t), GFP_ATOMIC))) {
cf2b4488
HP		 1838 DHD_ERROR(("%s: OOM - dhd_if_t\n", __func__));
1839 return -ENOMEM;
1840 }
1841
1842 memset(ifp, 0, sizeof(dhd_if_t));
1843 ifp->info = dhd;
1844 dhd->iflist[ifidx] = ifp;
cbf6baac 1845 strlcpy(ifp->name, name, IFNAMSIZ);
cf2b4488
HP		 1846 if (mac_addr != NULL)
1847 memcpy(&ifp->mac_addr, mac_addr, ETHER_ADDR_LEN);
1848
1849 if (handle == NULL) {
1850 ifp->state = WLC_E_IF_ADD;
1851 ifp->idx = ifidx;
d809dcb9 1852 ASSERT(dhd->sysioc_tsk);
cf2b4488
HP		 1853 up(&dhd->sysioc_sem);
1854 } else
1855 ifp->net = (struct net_device *)handle;
1856
1857 return 0;
1858}
1859
1860void dhd_del_if(dhd_info_t *dhd, int ifidx)
1861{
1862 dhd_if_t *ifp;
1863
1864 DHD_TRACE(("%s: idx %d\n", __func__, ifidx));
1865
1866 ASSERT(dhd && ifidx && (ifidx < DHD_MAX_IFS));
1867 ifp = dhd->iflist[ifidx];
1868 if (!ifp) {
1869 DHD_ERROR(("%s: Null interface\n", __func__));
1870 return;
1871 }
1872
1873 ifp->state = WLC_E_IF_DEL;
1874 ifp->idx = ifidx;
d809dcb9 1875 ASSERT(dhd->sysioc_tsk);
cf2b4488
HP		 1876 up(&dhd->sysioc_sem);
1877}
1878
1879dhd_pub_t *dhd_attach(osl_t *osh, struct dhd_bus *bus, uint bus_hdrlen)
1880{
1881 dhd_info_t *dhd = NULL;
1882 struct net_device *net;
1883
1884 DHD_TRACE(("%s: Enter\n", __func__));
1885 /* updates firmware nvram path if it was provided as module
1886 paramters */
1887 if ((firmware_path != NULL) && (firmware_path[0] != '\0'))
1888 strcpy(fw_path, firmware_path);
1889 if ((nvram_path != NULL) && (nvram_path[0] != '\0'))
1890 strcpy(nv_path, nvram_path);
1891
1892 /* Allocate etherdev, including space for private structure */
a618cc28
JC		 1893 net = alloc_etherdev(sizeof(dhd));
1894 if (!net) {
cf2b4488
HP		 1895 DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__));
1896 goto fail;
1897 }
1898
1899 /* Allocate primary dhd_info */
5fcc1fcb 1900 dhd = kmalloc(sizeof(dhd_info_t), GFP_ATOMIC);
a618cc28 1901 if (!dhd) {
cf2b4488
HP		 1902 DHD_ERROR(("%s: OOM - alloc dhd_info\n", __func__));
1903 goto fail;
1904 }
1905
1906 memset(dhd, 0, sizeof(dhd_info_t));
1907
1908 /*
1909 * Save the dhd_info into the priv
1910 */
1911 memcpy(netdev_priv(net), &dhd, sizeof(dhd));
1912 dhd->pub.osh = osh;
1913
1914 /* Set network interface name if it was provided as module parameter */
1915 if (iface_name[0]) {
1916 int len;
1917 char ch;
1918 strncpy(net->name, iface_name, IFNAMSIZ);
1919 net->name[IFNAMSIZ - 1] = 0;
1920 len = strlen(net->name);
1921 ch = net->name[len - 1];
1922 if ((ch > '9' || ch < '0') && (len < IFNAMSIZ - 2))
1923 strcat(net->name, "%d");
1924 }
1925
1926 if (dhd_add_if(dhd, 0, (void *)net, net->name, NULL, 0, 0) ==
1927 DHD_BAD_IF)
1928 goto fail;
1929
1930 net->netdev_ops = NULL;
45f4d024 1931 sema_init(&dhd->proto_sem, 1);
cf2b4488
HP		 1932 /* Initialize other structure content */
1933 init_waitqueue_head(&dhd->ioctl_resp_wait);
1934 init_waitqueue_head(&dhd->ctrl_wait);
1935
1936 /* Initialize the spinlocks */
1937 spin_lock_init(&dhd->sdlock);
1938 spin_lock_init(&dhd->txqlock);
1939
1940 /* Link to info module */
1941 dhd->pub.info = dhd;
1942
1943 /* Link to bus module */
1944 dhd->pub.bus = bus;
1945 dhd->pub.hdrlen = bus_hdrlen;
1946
1947 /* Attach and link in the protocol */
1948 if (dhd_prot_attach(&dhd->pub) != 0) {
1949 DHD_ERROR(("dhd_prot_attach failed\n"));
1950 goto fail;
1951 }
1952#if defined(CONFIG_WIRELESS_EXT)
1953 /* Attach and link in the iw */
1954 if (wl_iw_attach(net, (void *)&dhd->pub) != 0) {
1955 DHD_ERROR(("wl_iw_attach failed\n"));
1956 goto fail;
1957 }
1e8dd5b9 1958#endif /* defined(CONFIG_WIRELESS_EXT) */
cf2b4488 1959
cf2b4488
HP		 1960 /* Attach and link in the cfg80211 */
1961 if (IS_CFG80211_FAVORITE()) {
1962 if (unlikely(wl_cfg80211_attach(net, &dhd->pub))) {
1963 DHD_ERROR(("wl_cfg80211_attach failed\n"));
1964 goto fail;
1965 }
1966 if (!NO_FW_REQ()) {
1967 strcpy(fw_path, wl_cfg80211_get_fwname());
1968 strcpy(nv_path, wl_cfg80211_get_nvramname());
1969 }
1970 wl_cfg80211_dbg_level(DBG_CFG80211_GET());
1971 }
cf2b4488
HP		 1972
1973 /* Set up the watchdog timer */
1974 init_timer(&dhd->timer);
3deea904 1975 dhd->timer.data = (unsigned long) dhd;
cf2b4488
HP		 1976 dhd->timer.function = dhd_watchdog;
1977
1978 /* Initialize thread based operation and lock */
45f4d024 1979 sema_init(&dhd->sdsem, 1);
cf2b4488 1980 if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0))
0f0881b0 1981 dhd->threads_only = true;
cf2b4488 1982 else
0965ae88 1983 dhd->threads_only = false;
cf2b4488
HP		 1984
1985 if (dhd_dpc_prio >= 0) {
1986 /* Initialize watchdog thread */
1987 sema_init(&dhd->watchdog_sem, 0);
860708d9
JC		 1988 dhd->watchdog_tsk = kthread_run(dhd_watchdog_thread, dhd,
1989 "dhd_watchdog");
1990 if (IS_ERR(dhd->watchdog_tsk)) {
1991 printk(KERN_WARNING
1992 "dhd_watchdog thread failed to start\n");
1993 dhd->watchdog_tsk = NULL;
1994 }
cf2b4488 1995 } else {
860708d9 1996 dhd->watchdog_tsk = NULL;
cf2b4488
HP		 1997 }
1998
1999 /* Set up the bottom half handler */
2000 if (dhd_dpc_prio >= 0) {
2001 /* Initialize DPC thread */
2002 sema_init(&dhd->dpc_sem, 0);
ecd7559d
JC		 2003 dhd->dpc_tsk = kthread_run(dhd_dpc_thread, dhd, "dhd_dpc");
2004 if (IS_ERR(dhd->dpc_tsk)) {
2005 printk(KERN_WARNING
2006 "dhd_dpc thread failed to start\n");
2007 dhd->dpc_tsk = NULL;
2008 }
cf2b4488 2009 } else {
3deea904 2010 tasklet_init(&dhd->tasklet, dhd_dpc, (unsigned long) dhd);
ecd7559d 2011 dhd->dpc_tsk = NULL;
cf2b4488
HP		 2012 }
2013
2014 if (dhd_sysioc) {
2015 sema_init(&dhd->sysioc_sem, 0);
d809dcb9
JC		 2016 dhd->sysioc_tsk = kthread_run(_dhd_sysioc_thread, dhd,
2017 "_dhd_sysioc");
2018 if (IS_ERR(dhd->sysioc_tsk)) {
2019 printk(KERN_WARNING
2020 "_dhd_sysioc thread failed to start\n");
2021 dhd->sysioc_tsk = NULL;
2022 }
2023 } else
2024 dhd->sysioc_tsk = NULL;
cf2b4488
HP		 2025
2026 /*
2027 * Save the dhd_info into the priv
2028 */
2029 memcpy(netdev_priv(net), &dhd, sizeof(dhd));
2030
2031#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2032 g_bus = bus;
2033#endif
2034#if defined(CONFIG_PM_SLEEP)
2035 register_pm_notifier(&dhd_sleep_pm_notifier);
2036#endif /* defined(CONFIG_PM_SLEEP) */
2037 /* && defined(DHD_GPL) */
2038 /* Init lock suspend to prevent kernel going to suspend */
2039 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_TMOUT, "dhd_wake_lock");
2040 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_LINK_DOWN_TMOUT,
2041 "dhd_wake_lock_link_dw_event");
2042 WAKE_LOCK_INIT(&dhd->pub, WAKE_LOCK_PNO_FIND_TMOUT,
2043 "dhd_wake_lock_link_pno_find_event");
2044#ifdef CONFIG_HAS_EARLYSUSPEND
2045 dhd->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 20;
2046 dhd->early_suspend.suspend = dhd_early_suspend;
2047 dhd->early_suspend.resume = dhd_late_resume;
2048 register_early_suspend(&dhd->early_suspend);
2049#endif
2050
2051 return &dhd->pub;
2052
2053fail:
2054 if (net)
2055 free_netdev(net);
2056 if (dhd)
2057 dhd_detach(&dhd->pub);
2058
2059 return NULL;
2060}
2061
2062int dhd_bus_start(dhd_pub_t *dhdp)
2063{
2064 int ret = -1;
2065 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
2066#ifdef EMBEDDED_PLATFORM
2067 char iovbuf[WL_EVENTING_MASK_LEN + 12]; /* Room for "event_msgs" +
2068 '\0' + bitvec */
2069#endif /* EMBEDDED_PLATFORM */
2070
2071 ASSERT(dhd);
2072
2073 DHD_TRACE(("%s:\n", __func__));
2074
2075 /* try to download image and nvram to the dongle */
2076 if (dhd->pub.busstate == DHD_BUS_DOWN) {
2077 WAKE_LOCK_INIT(dhdp, WAKE_LOCK_DOWNLOAD, "dhd_bus_start");
2078 WAKE_LOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2079 if (!(dhd_bus_download_firmware(dhd->pub.bus, dhd->pub.osh,
2080 fw_path, nv_path))) {
2081 DHD_ERROR(("%s: dhdsdio_probe_download failed. "
2082 "firmware = %s nvram = %s\n",
2083 __func__, fw_path, nv_path));
2084 WAKE_UNLOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2085 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_DOWNLOAD);
2086 return -1;
2087 }
2088
2089 WAKE_UNLOCK(dhdp, WAKE_LOCK_DOWNLOAD);
2090 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_DOWNLOAD);
2091 }
2092
2093 /* Start the watchdog timer */
2094 dhd->pub.tickcnt = 0;
2095 dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
2096
2097 /* Bring up the bus */
0f0881b0 2098 ret = dhd_bus_init(&dhd->pub, true);
a618cc28 2099 if (ret != 0) {
cf2b4488
HP		 2100 DHD_ERROR(("%s, dhd_bus_init failed %d\n", __func__, ret));
2101 return ret;
2102 }
2103#if defined(OOB_INTR_ONLY)
2104 /* Host registration for OOB interrupt */
2105 if (bcmsdh_register_oob_intr(dhdp)) {
2106 del_timer_sync(&dhd->timer);
0965ae88 2107 dhd->wd_timer_valid = false;
cf2b4488
HP		 2108 DHD_ERROR(("%s Host failed to resgister for OOB\n", __func__));
2109 return -ENODEV;
2110 }
2111
2112 /* Enable oob at firmware */
0f0881b0 2113 dhd_enable_oob_intr(dhd->pub.bus, true);
cf2b4488
HP		 2114#endif /* defined(OOB_INTR_ONLY) */
2115
2116 /* If bus is not ready, can't come up */
2117 if (dhd->pub.busstate != DHD_BUS_DATA) {
2118 del_timer_sync(&dhd->timer);
0965ae88 2119 dhd->wd_timer_valid = false;
cf2b4488
HP		 2120 DHD_ERROR(("%s failed bus is not ready\n", __func__));
2121 return -ENODEV;
2122 }
2123#ifdef EMBEDDED_PLATFORM
2124 bcm_mkiovar("event_msgs", dhdp->eventmask, WL_EVENTING_MASK_LEN, iovbuf,
2125 sizeof(iovbuf));
2126 dhdcdc_query_ioctl(dhdp, 0, WLC_GET_VAR, iovbuf, sizeof(iovbuf));
2127 bcopy(iovbuf, dhdp->eventmask, WL_EVENTING_MASK_LEN);
2128
2129 setbit(dhdp->eventmask, WLC_E_SET_SSID);
2130 setbit(dhdp->eventmask, WLC_E_PRUNE);
2131 setbit(dhdp->eventmask, WLC_E_AUTH);
2132 setbit(dhdp->eventmask, WLC_E_REASSOC);
2133 setbit(dhdp->eventmask, WLC_E_REASSOC_IND);
2134 setbit(dhdp->eventmask, WLC_E_DEAUTH_IND);
2135 setbit(dhdp->eventmask, WLC_E_DISASSOC_IND);
2136 setbit(dhdp->eventmask, WLC_E_DISASSOC);
2137 setbit(dhdp->eventmask, WLC_E_JOIN);
2138 setbit(dhdp->eventmask, WLC_E_ASSOC_IND);
2139 setbit(dhdp->eventmask, WLC_E_PSK_SUP);
2140 setbit(dhdp->eventmask, WLC_E_LINK);
2141 setbit(dhdp->eventmask, WLC_E_NDIS_LINK);
2142 setbit(dhdp->eventmask, WLC_E_MIC_ERROR);
2143 setbit(dhdp->eventmask, WLC_E_PMKID_CACHE);
2144 setbit(dhdp->eventmask, WLC_E_TXFAIL);
2145 setbit(dhdp->eventmask, WLC_E_JOIN_START);
2146 setbit(dhdp->eventmask, WLC_E_SCAN_COMPLETE);
2147#ifdef PNO_SUPPORT
2148 setbit(dhdp->eventmask, WLC_E_PFN_NET_FOUND);
2149#endif /* PNO_SUPPORT */
2150
2151/* enable dongle roaming event */
2152
2153 dhdp->pktfilter_count = 1;
2154 /* Setup filter to allow only unicast */
2155 dhdp->pktfilter[0] = "100 0 0 0 0x01 0x00";
2156#endif /* EMBEDDED_PLATFORM */
2157
2158 /* Bus is ready, do any protocol initialization */
a618cc28
JC		 2159 ret = dhd_prot_init(&dhd->pub);
2160 if (ret < 0)
cf2b4488
HP		 2161 return ret;
2162
2163 return 0;
2164}
2165
2166int
2167dhd_iovar(dhd_pub_t *pub, int ifidx, char *name, char *cmd_buf, uint cmd_len,
2168 int set)
2169{
2170 char buf[strlen(name) + 1 + cmd_len];
2171 int len = sizeof(buf);
2172 wl_ioctl_t ioc;
2173 int ret;
2174
2175 len = bcm_mkiovar(name, cmd_buf, cmd_len, buf, len);
2176
2177 memset(&ioc, 0, sizeof(ioc));
2178
2179 ioc.cmd = set ? WLC_SET_VAR : WLC_GET_VAR;
2180 ioc.buf = buf;
2181 ioc.len = len;
2182 ioc.set = set;
2183
2184 ret = dhd_prot_ioctl(pub, ifidx, &ioc, ioc.buf, ioc.len);
2185 if (!set && ret >= 0)
2186 memcpy(cmd_buf, buf, cmd_len);
2187
2188 return ret;
2189}
2190
2191static struct net_device_ops dhd_ops_pri = {
2192 .ndo_open = dhd_open,
2193 .ndo_stop = dhd_stop,
2194 .ndo_get_stats = dhd_get_stats,
2195 .ndo_do_ioctl = dhd_ioctl_entry,
2196 .ndo_start_xmit = dhd_start_xmit,
2197 .ndo_set_mac_address = dhd_set_mac_address,
2198 .ndo_set_multicast_list = dhd_set_multicast_list
2199};
2200
2201static struct net_device_ops dhd_ops_virt = {
2202 .ndo_get_stats = dhd_get_stats,
2203 .ndo_do_ioctl = dhd_ioctl_entry,
2204 .ndo_start_xmit = dhd_start_xmit,
2205 .ndo_set_mac_address = dhd_set_mac_address,
2206 .ndo_set_multicast_list = dhd_set_multicast_list
2207};
2208
2209int dhd_net_attach(dhd_pub_t *dhdp, int ifidx)
2210{
2211 dhd_info_t *dhd = (dhd_info_t *) dhdp->info;
2212 struct net_device *net;
3fd79f7c 2213 u8 temp_addr[ETHER_ADDR_LEN] = {
cf2b4488
HP		 2214 0x00, 0x90, 0x4c, 0x11, 0x22, 0x33};
2215
2216 DHD_TRACE(("%s: ifidx %d\n", __func__, ifidx));
2217
2218 ASSERT(dhd && dhd->iflist[ifidx]);
2219
2220 net = dhd->iflist[ifidx]->net;
2221 ASSERT(net);
2222
2223 ASSERT(!net->netdev_ops);
2224 net->netdev_ops = &dhd_ops_virt;
2225
2226 net->netdev_ops = &dhd_ops_pri;
2227
2228 /*
2229 * We have to use the primary MAC for virtual interfaces
2230 */
2231 if (ifidx != 0) {
2232 /* for virtual interfaces use the primary MAC */
2233 memcpy(temp_addr, dhd->pub.mac.octet, ETHER_ADDR_LEN);
2234
2235 }
2236
2237 if (ifidx == 1) {
2238 DHD_TRACE(("%s ACCESS POINT MAC: \n", __func__));
2239 /* ACCESSPOINT INTERFACE CASE */
2240 temp_addr[0] |= 0X02; /* set bit 2 ,
2241 - Locally Administered address */
2242
2243 }
2244 net->hard_header_len = ETH_HLEN + dhd->pub.hdrlen;
2245 net->ethtool_ops = &dhd_ethtool_ops;
2246
2247#if defined(CONFIG_WIRELESS_EXT)
cf2b4488 2248 if (!IS_CFG80211_FAVORITE()) {
cf2b4488
HP		 2249#if WIRELESS_EXT < 19
2250 net->get_wireless_stats = dhd_get_wireless_stats;
2251#endif /* WIRELESS_EXT < 19 */
2252#if WIRELESS_EXT > 12
2253 net->wireless_handlers =
2254 (struct iw_handler_def *)&wl_iw_handler_def;
2255#endif /* WIRELESS_EXT > 12 */
cf2b4488 2256 }
cf2b4488
HP		 2257#endif /* defined(CONFIG_WIRELESS_EXT) */
2258
2259 dhd->pub.rxsz = net->mtu + net->hard_header_len + dhd->pub.hdrlen;
2260
2261 memcpy(net->dev_addr, temp_addr, ETHER_ADDR_LEN);
2262
2263 if (register_netdev(net) != 0) {
2264 DHD_ERROR(("%s: couldn't register the net device\n",
2265 __func__));
2266 goto fail;
2267 }
2268
2269 printf("%s: Broadcom Dongle Host Driver\n", net->name);
2270
2271 return 0;
2272
2273fail:
2274 net->netdev_ops = NULL;
2275 return BCME_ERROR;
2276}
2277
2278void dhd_bus_detach(dhd_pub_t *dhdp)
2279{
2280 dhd_info_t *dhd;
2281
2282 DHD_TRACE(("%s: Enter\n", __func__));
2283
2284 if (dhdp) {
2285 dhd = (dhd_info_t *) dhdp->info;
2286 if (dhd) {
2287 /* Stop the protocol module */
2288 dhd_prot_stop(&dhd->pub);
2289
2290 /* Stop the bus module */
0f0881b0 2291 dhd_bus_stop(dhd->pub.bus, true);
cf2b4488
HP		 2292#if defined(OOB_INTR_ONLY)
2293 bcmsdh_unregister_oob_intr();
2294#endif /* defined(OOB_INTR_ONLY) */
2295
2296 /* Clear the watchdog timer */
2297 del_timer_sync(&dhd->timer);
0965ae88 2298 dhd->wd_timer_valid = false;
cf2b4488
HP		 2299 }
2300 }
2301}
2302
2303void dhd_detach(dhd_pub_t *dhdp)
2304{
2305 dhd_info_t *dhd;
2306
2307 DHD_TRACE(("%s: Enter\n", __func__));
2308
2309 if (dhdp) {
2310 dhd = (dhd_info_t *) dhdp->info;
2311 if (dhd) {
2312 dhd_if_t *ifp;
2313 int i;
2314
2315#if defined(CONFIG_HAS_EARLYSUSPEND)
2316 if (dhd->early_suspend.suspend)
2317 unregister_early_suspend(&dhd->early_suspend);
2318#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
2319
2320 for (i = 1; i < DHD_MAX_IFS; i++)
2321 if (dhd->iflist[i])
2322 dhd_del_if(dhd, i);
2323
2324 ifp = dhd->iflist[0];
2325 ASSERT(ifp);
2326 if (ifp->net->netdev_ops == &dhd_ops_pri) {
2327 dhd_stop(ifp->net);
2328 unregister_netdev(ifp->net);
2329 }
2330
860708d9 2331 if (dhd->watchdog_tsk) {
7356f429 2332 send_sig(SIGTERM, dhd->watchdog_tsk, 1);
860708d9
JC		 2333 kthread_stop(dhd->watchdog_tsk);
2334 dhd->watchdog_tsk = NULL;
cf2b4488
HP		 2335 }
2336
ecd7559d 2337 if (dhd->dpc_tsk) {
7356f429 2338 send_sig(SIGTERM, dhd->dpc_tsk, 1);
ecd7559d
JC		 2339 kthread_stop(dhd->dpc_tsk);
2340 dhd->dpc_tsk = NULL;
eeb8e46b 2341 } else
cf2b4488
HP		 2342 tasklet_kill(&dhd->tasklet);
2343
d809dcb9 2344 if (dhd->sysioc_tsk) {
7356f429 2345 send_sig(SIGTERM, dhd->sysioc_tsk, 1);
d809dcb9
JC		 2346 kthread_stop(dhd->sysioc_tsk);
2347 dhd->sysioc_tsk = NULL;
cf2b4488
HP		 2348 }
2349
2350 dhd_bus_detach(dhdp);
2351
2352 if (dhdp->prot)
2353 dhd_prot_detach(dhdp);
2354
2355#if defined(CONFIG_WIRELESS_EXT)
2356 wl_iw_detach();
2357#endif /* (CONFIG_WIRELESS_EXT) */
2358
cf2b4488
HP		 2359 if (IS_CFG80211_FAVORITE())
2360 wl_cfg80211_detach();
cf2b4488
HP		 2361
2362#if defined(CONFIG_PM_SLEEP)
2363 unregister_pm_notifier(&dhd_sleep_pm_notifier);
2364#endif /* defined(CONFIG_PM_SLEEP) */
2365 /* && defined(DHD_GPL) */
2366 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_TMOUT);
2367 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_LINK_DOWN_TMOUT);
2368 WAKE_LOCK_DESTROY(dhdp, WAKE_LOCK_PNO_FIND_TMOUT);
2369 free_netdev(ifp->net);
182acb3c 2370 kfree(ifp);
2371 kfree(dhd);
cf2b4488
HP		 2372 }
2373 }
2374}
2375
2376static void __exit dhd_module_cleanup(void)
2377{
2378 DHD_TRACE(("%s: Enter\n", __func__));
2379
2380 dhd_bus_unregister();
2381#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2382 wifi_del_dev();
2383#endif
2384 /* Call customer gpio to turn off power with WL_REG_ON signal */
2385 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
2386}
2387
2388static int __init dhd_module_init(void)
2389{
2390 int error;
2391
2392 DHD_TRACE(("%s: Enter\n", __func__));
2393
2394 /* Sanity check on the module parameters */
2395 do {
2396 /* Both watchdog and DPC as tasklets are ok */
2397 if ((dhd_watchdog_prio < 0) && (dhd_dpc_prio < 0))
2398 break;
2399
2400 /* If both watchdog and DPC are threads, TX must be deferred */
2401 if ((dhd_watchdog_prio >= 0) && (dhd_dpc_prio >= 0)
2402 && dhd_deferred_tx)
2403 break;
2404
2405 DHD_ERROR(("Invalid module parameters.\n"));
2406 return -EINVAL;
2407 } while (0);
2408 /* Call customer gpio to turn on power with WL_REG_ON signal */
2409 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_ON);
2410
2411#if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC)
2412 sema_init(&wifi_control_sem, 0);
2413
2414 error = wifi_add_dev();
2415 if (error) {
2416 DHD_ERROR(("%s: platform_driver_register failed\n", __func__));
2417 goto faild;
2418 }
2419
2420 /* Waiting callback after platform_driver_register is done or
2421 exit with error */
2422 if (down_timeout(&wifi_control_sem, msecs_to_jiffies(1000)) != 0) {
2423 printk(KERN_ERR "%s: platform_driver_register timeout\n",
2424 __func__);
2425 /* remove device */
2426 wifi_del_dev();
2427 goto faild;
2428 }
2429#endif /* #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) */
2430
2431 error = dhd_bus_register();
2432
2433 if (!error)
2434 printf("\n%s\n", dhd_version);
2435 else {
2436 DHD_ERROR(("%s: sdio_register_driver failed\n", __func__));
2437 goto faild;
2438 }
2439 return error;
2440
2441faild:
2442 /* turn off power and exit */
2443 dhd_customer_gpio_wlan_ctrl(WLAN_POWER_OFF);
2444 return -EINVAL;
2445}
2446
2447module_init(dhd_module_init);
2448module_exit(dhd_module_cleanup);
2449
2450/*
2451 * OS specific functions required to implement DHD driver in OS independent way
2452 */
2453int dhd_os_proto_block(dhd_pub_t *pub)
2454{
2455 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2456
2457 if (dhd) {
2458 down(&dhd->proto_sem);
2459 return 1;
2460 }
2461 return 0;
2462}
2463
2464int dhd_os_proto_unblock(dhd_pub_t *pub)
2465{
2466 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2467
2468 if (dhd) {
2469 up(&dhd->proto_sem);
2470 return 1;
2471 }
2472
2473 return 0;
2474}
2475
2476unsigned int dhd_os_get_ioctl_resp_timeout(void)
2477{
2478 return (unsigned int)dhd_ioctl_timeout_msec;
2479}
2480
2481void dhd_os_set_ioctl_resp_timeout(unsigned int timeout_msec)
2482{
2483 dhd_ioctl_timeout_msec = (int)timeout_msec;
2484}
2485
2486int dhd_os_ioctl_resp_wait(dhd_pub_t *pub, uint *condition, bool *pending)
2487{
2488 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2489 DECLARE_WAITQUEUE(wait, current);
2490 int timeout = dhd_ioctl_timeout_msec;
2491
2492 /* Convert timeout in millsecond to jiffies */
2493 timeout = timeout * HZ / 1000;
2494
2495 /* Wait until control frame is available */
2496 add_wait_queue(&dhd->ioctl_resp_wait, &wait);
2497 set_current_state(TASK_INTERRUPTIBLE);
2498
2499 while (!(*condition) && (!signal_pending(current) && timeout))
2500 timeout = schedule_timeout(timeout);
2501
2502 if (signal_pending(current))
0f0881b0 2503 *pending = true;
cf2b4488
HP		 2504
2505 set_current_state(TASK_RUNNING);
2506 remove_wait_queue(&dhd->ioctl_resp_wait, &wait);
2507
2508 return timeout;
2509}
2510
2511int dhd_os_ioctl_resp_wake(dhd_pub_t *pub)
2512{
2513 dhd_info_t *dhd = (dhd_info_t *) (pub->info);
2514
2515 if (waitqueue_active(&dhd->ioctl_resp_wait))
2516 wake_up_interruptible(&dhd->ioctl_resp_wait);
2517
2518 return 0;
2519}
2520
2521void dhd_os_wd_timer(void *bus, uint wdtick)
2522{
2523 dhd_pub_t *pub = bus;
5f782dee 2524 static uint save_dhd_watchdog_ms;
cf2b4488
HP		 2525 dhd_info_t *dhd = (dhd_info_t *) pub->info;
2526
2527 /* don't start the wd until fw is loaded */
2528 if (pub->busstate == DHD_BUS_DOWN)
2529 return;
2530
2531 /* Totally stop the timer */
0f0881b0 2532 if (!wdtick && dhd->wd_timer_valid == true) {
cf2b4488 2533 del_timer_sync(&dhd->timer);
0965ae88 2534 dhd->wd_timer_valid = false;
cf2b4488
HP		 2535 save_dhd_watchdog_ms = wdtick;
2536 return;
2537 }
2538
2539 if (wdtick) {
2540 dhd_watchdog_ms = (uint) wdtick;
2541
2542 if (save_dhd_watchdog_ms != dhd_watchdog_ms) {
2543
0f0881b0 2544 if (dhd->wd_timer_valid == true)
cf2b4488
HP		 2545 /* Stop timer and restart at new value */
2546 del_timer_sync(&dhd->timer);
2547
2548 /* Create timer again when watchdog period is
2549 dynamically changed or in the first instance
2550 */
2551 dhd->timer.expires =
2552 jiffies + dhd_watchdog_ms * HZ / 1000;
2553 add_timer(&dhd->timer);
2554
2555 } else {
2556 /* Re arm the timer, at last watchdog period */
2557 mod_timer(&dhd->timer,
2558 jiffies + dhd_watchdog_ms * HZ / 1000);
2559 }
2560
0f0881b0 2561 dhd->wd_timer_valid = true;
cf2b4488
HP		 2562 save_dhd_watchdog_ms = wdtick;
2563 }
2564}
2565
2566void *dhd_os_open_image(char *filename)
2567{
2568 struct file *fp;
2569
cf2b4488
HP		 2570 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2571 return wl_cfg80211_request_fw(filename);
cf2b4488
HP		 2572
2573 fp = filp_open(filename, O_RDONLY, 0);
2574 /*
2575 * 2.6.11 (FC4) supports filp_open() but later revs don't?
2576 * Alternative:
2577 * fp = open_namei(AT_FDCWD, filename, O_RD, 0);
2578 * ???
2579 */
2580 if (IS_ERR(fp))
2581 fp = NULL;
2582
2583 return fp;
2584}
2585
2586int dhd_os_get_image_block(char *buf, int len, void *image)
2587{
2588 struct file *fp = (struct file *)image;
2589 int rdlen;
2590
cf2b4488
HP		 2591 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2592 return wl_cfg80211_read_fw(buf, len);
cf2b4488
HP		 2593
2594 if (!image)
2595 return 0;
2596
2597 rdlen = kernel_read(fp, fp->f_pos, buf, len);
2598 if (rdlen > 0)
2599 fp->f_pos += rdlen;
2600
2601 return rdlen;
2602}
2603
2604void dhd_os_close_image(void *image)
2605{
cf2b4488
HP		 2606 if (IS_CFG80211_FAVORITE() && !NO_FW_REQ())
2607 return wl_cfg80211_release_fw();
cf2b4488
HP		 2608 if (image)
2609 filp_close((struct file *)image, NULL);
2610}
2611
2612void dhd_os_sdlock(dhd_pub_t *pub)
2613{
2614 dhd_info_t *dhd;
2615
2616 dhd = (dhd_info_t *) (pub->info);
2617
2618 if (dhd->threads_only)
2619 down(&dhd->sdsem);
2620 else
2621 spin_lock_bh(&dhd->sdlock);
2622}
2623
2624void dhd_os_sdunlock(dhd_pub_t *pub)
2625{
2626 dhd_info_t *dhd;
2627
2628 dhd = (dhd_info_t *) (pub->info);
2629
2630 if (dhd->threads_only)
2631 up(&dhd->sdsem);
2632 else
2633 spin_unlock_bh(&dhd->sdlock);
2634}
2635
2636void dhd_os_sdlock_txq(dhd_pub_t *pub)
2637{
2638 dhd_info_t *dhd;
2639
2640 dhd = (dhd_info_t *) (pub->info);
2641 spin_lock_bh(&dhd->txqlock);
2642}
2643
2644void dhd_os_sdunlock_txq(dhd_pub_t *pub)
2645{
2646 dhd_info_t *dhd;
2647
2648 dhd = (dhd_info_t *) (pub->info);
2649 spin_unlock_bh(&dhd->txqlock);
2650}
2651
2652void dhd_os_sdlock_rxq(dhd_pub_t *pub)
2653{
2654}
2655
2656void dhd_os_sdunlock_rxq(dhd_pub_t *pub)
2657{
2658}
2659
2660void dhd_os_sdtxlock(dhd_pub_t *pub)
2661{
2662 dhd_os_sdlock(pub);
2663}
2664
2665void dhd_os_sdtxunlock(dhd_pub_t *pub)
2666{
2667 dhd_os_sdunlock(pub);
2668}
2669
cf2b4488
HP		 2670#if defined(CONFIG_WIRELESS_EXT)
2671struct iw_statistics *dhd_get_wireless_stats(struct net_device *dev)
2672{
2673 int res = 0;
2674 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2675
2676 res = wl_iw_get_wireless_stats(dev, &dhd->iw.wstats);
2677
2678 if (res == 0)
2679 return &dhd->iw.wstats;
2680 else
2681 return NULL;
2682}
2683#endif /* defined(CONFIG_WIRELESS_EXT) */
2684
2685static int
2686dhd_wl_host_event(dhd_info_t *dhd, int *ifidx, void *pktdata,
2687 wl_event_msg_t *event, void **data)
2688{
2689 int bcmerror = 0;
2690
2691 ASSERT(dhd != NULL);
2692
2693 bcmerror = wl_host_event(dhd, ifidx, pktdata, event, data);
2694 if (bcmerror != BCME_OK)
2695 return bcmerror;
2696
2697#if defined(CONFIG_WIRELESS_EXT)
cf2b4488 2698 if (!IS_CFG80211_FAVORITE()) {
cf2b4488
HP		 2699 if ((dhd->iflist[*ifidx] == NULL)
2700 || (dhd->iflist[*ifidx]->net == NULL)) {
2701 DHD_ERROR(("%s Exit null pointer\n", __func__));
2702 return bcmerror;
2703 }
2704
2705 if (dhd->iflist[*ifidx]->net)
2706 wl_iw_event(dhd->iflist[*ifidx]->net, event, *data);
cf2b4488 2707 }
cf2b4488
HP		 2708#endif /* defined(CONFIG_WIRELESS_EXT) */
2709
cf2b4488
HP		 2710 if (IS_CFG80211_FAVORITE()) {
2711 ASSERT(dhd->iflist[*ifidx] != NULL);
2712 ASSERT(dhd->iflist[*ifidx]->net != NULL);
2713 if (dhd->iflist[*ifidx]->net)
2714 wl_cfg80211_event(dhd->iflist[*ifidx]->net, event,
2715 *data);
2716 }
cf2b4488
HP		 2717
2718 return bcmerror;
2719}
2720
2721/* send up locally generated event */
2722void dhd_sendup_event(dhd_pub_t *dhdp, wl_event_msg_t *event, void *data)
2723{
2724 switch (ntoh32(event->event_type)) {
2725 default:
2726 break;
2727 }
2728}
2729
2730void dhd_wait_for_event(dhd_pub_t *dhd, bool *lockvar)
2731{
2732 struct dhd_info *dhdinfo = dhd->info;
2733 dhd_os_sdunlock(dhd);
2734 wait_event_interruptible_timeout(dhdinfo->ctrl_wait,
0965ae88 2735 (*lockvar == false), HZ * 2);
cf2b4488
HP		 2736 dhd_os_sdlock(dhd);
2737 return;
2738}
2739
2740void dhd_wait_event_wakeup(dhd_pub_t *dhd)
2741{
2742 struct dhd_info *dhdinfo = dhd->info;
2743 if (waitqueue_active(&dhdinfo->ctrl_wait))
2744 wake_up_interruptible(&dhdinfo->ctrl_wait);
2745 return;
2746}
2747
3fd79f7c 2748int dhd_dev_reset(struct net_device *dev, u8 flag)
cf2b4488
HP		 2749{
2750 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2751
2752 /* Turning off watchdog */
2753 if (flag)
2754 dhd_os_wd_timer(&dhd->pub, 0);
2755
2756 dhd_bus_devreset(&dhd->pub, flag);
2757
2758 /* Turning on watchdog back */
2759 if (!flag)
2760 dhd_os_wd_timer(&dhd->pub, dhd_watchdog_ms);
2761 DHD_ERROR(("%s: WLAN OFF DONE\n", __func__));
2762
2763 return 1;
2764}
2765
2766int net_os_set_suspend_disable(struct net_device *dev, int val)
2767{
2768 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2769 int ret = 0;
2770
2771 if (dhd) {
2772 ret = dhd->pub.suspend_disable_flag;
2773 dhd->pub.suspend_disable_flag = val;
2774 }
2775 return ret;
2776}
2777
2778int net_os_set_suspend(struct net_device *dev, int val)
2779{
2780 int ret = 0;
2781#if defined(CONFIG_HAS_EARLYSUSPEND)
2782 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2783
2784 if (dhd) {
2785 dhd_os_proto_block(&dhd->pub);
2786 ret = dhd_set_suspend(val, &dhd->pub);
2787 dhd_os_proto_unblock(&dhd->pub);
2788 }
2789#endif /* defined(CONFIG_HAS_EARLYSUSPEND) */
2790 return ret;
2791}
2792
2793int net_os_set_dtim_skip(struct net_device *dev, int val)
2794{
2795 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2796
2797 if (dhd)
2798 dhd->pub.dtim_skip = val;
2799
2800 return 0;
2801}
2802
2803int net_os_set_packet_filter(struct net_device *dev, int val)
2804{
2805 dhd_info_t *dhd = *(dhd_info_t **) netdev_priv(dev);
2806 int ret = 0;
2807
2808 /* Packet filtering is set only if we still in early-suspend and
2809 * we need either to turn it ON or turn it OFF
2810 * We can always turn it OFF in case of early-suspend, but we turn it
2811 * back ON only if suspend_disable_flag was not set
2812 */
2813 if (dhd && dhd->pub.up) {
2814 dhd_os_proto_block(&dhd->pub);
2815 if (dhd->pub.in_suspend) {
2816 if (!val || (val && !dhd->pub.suspend_disable_flag))
2817 dhd_set_packet_filter(val, &dhd->pub);
2818 }
2819 dhd_os_proto_unblock(&dhd->pub);
2820 }
2821 return ret;
2822}
2823
2824void dhd_dev_init_ioctl(struct net_device *dev)
2825{
2826 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2827
2828 dhd_preinit_ioctls(&dhd->pub);
2829}
2830
2831#ifdef PNO_SUPPORT
2832/* Linux wrapper to call common dhd_pno_clean */
2833int dhd_dev_pno_reset(struct net_device *dev)
2834{
2835 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2836
2837 return dhd_pno_clean(&dhd->pub);
2838}
2839
2840/* Linux wrapper to call common dhd_pno_enable */
2841int dhd_dev_pno_enable(struct net_device *dev, int pfn_enabled)
2842{
2843 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2844
2845 return dhd_pno_enable(&dhd->pub, pfn_enabled);
2846}
2847
2848/* Linux wrapper to call common dhd_pno_set */
2849int
2850dhd_dev_pno_set(struct net_device *dev, wlc_ssid_t *ssids_local, int nssid,
580a0bd9 2851 unsigned char scan_fr)
cf2b4488
HP		 2852{
2853 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2854
2855 return dhd_pno_set(&dhd->pub, ssids_local, nssid, scan_fr);
2856}
2857
2858/* Linux wrapper to get pno status */
2859int dhd_dev_get_pno_status(struct net_device *dev)
2860{
2861 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2862
2863 return dhd_pno_get_status(&dhd->pub);
2864}
2865
2866#endif /* PNO_SUPPORT */
2867
2868static int dhd_get_pend_8021x_cnt(dhd_info_t *dhd)
2869{
2870 return atomic_read(&dhd->pend_8021x_cnt);
2871}
2872
2873#define MAX_WAIT_FOR_8021X_TX 10
2874
2875int dhd_wait_pend8021x(struct net_device *dev)
2876{
2877 dhd_info_t *dhd = *(dhd_info_t **)netdev_priv(dev);
2878 int timeout = 10 * HZ / 1000;
2879 int ntimes = MAX_WAIT_FOR_8021X_TX;
2880 int pend = dhd_get_pend_8021x_cnt(dhd);
2881
2882 while (ntimes && pend) {
2883 if (pend) {
2884 set_current_state(TASK_INTERRUPTIBLE);
2885 schedule_timeout(timeout);
2886 set_current_state(TASK_RUNNING);
2887 ntimes--;
2888 }
2889 pend = dhd_get_pend_8021x_cnt(dhd);
2890 }
2891 return pend;
2892}
2893
2894#ifdef DHD_DEBUG
3fd79f7c 2895int write_to_file(dhd_pub_t *dhd, u8 *buf, int size)
cf2b4488
HP		 2896{
2897 int ret = 0;
2898 struct file *fp;
2899 mm_segment_t old_fs;
2900 loff_t pos = 0;
2901
2902 /* change to KERNEL_DS address limit */
2903 old_fs = get_fs();
2904 set_fs(KERNEL_DS);
2905
2906 /* open file to write */
2907 fp = filp_open("/tmp/mem_dump", O_WRONLY | O_CREAT, 0640);
2908 if (!fp) {
2909 printf("%s: open file error\n", __func__);
2910 ret = -1;
2911 goto exit;
2912 }
2913
2914 /* Write buf to file */
2915 fp->f_op->write(fp, buf, size, &pos);
2916
2917exit:
2918 /* free buf before return */
182acb3c 2919 kfree(buf);
cf2b4488
HP		 2920 /* close file before return */
2921 if (fp)
2922 filp_close(fp, current->files);
2923 /* restore previous address limit */
2924 set_fs(old_fs);
2925
2926 return ret;
2927}
2928#endif /* DHD_DEBUG */
kernel source for telekom puls (alcatel/mediatek)