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30#include <asm/delay.h>
31#include <linux/uaccess.h>
32
33#include <linux/slab.h>
34#include <linux/netdevice.h>
35#include <linux/etherdevice.h>
36#include <linux/proc_fs.h>
37#include <linux/seq_file.h>
38#include <linux/if_arp.h>
39#include <linux/delay.h>
40#include <linux/random.h>
41#include <linux/wait.h>
42#include <linux/sched/signal.h>
43#include <linux/rtnetlink.h>
44#include <linux/wireless.h>
45#include <net/iw_handler.h>
46#include <net/lib80211.h>
47#include <asm/irq.h>
48
49#include "hostap_80211.h"
50#include "hostap.h"
51#include "hostap_ap.h"
52
53
54
55
56static int mtu = 1500;
57module_param(mtu, int, 0444);
58MODULE_PARM_DESC(mtu, "Maximum transfer unit");
59
60static int channel[MAX_PARM_DEVICES] = { 3, DEF_INTS };
61module_param_array(channel, int, NULL, 0444);
62MODULE_PARM_DESC(channel, "Initial channel");
63
64static char essid[33] = "test";
65module_param_string(essid, essid, sizeof(essid), 0444);
66MODULE_PARM_DESC(essid, "Host AP's ESSID");
67
68static int iw_mode[MAX_PARM_DEVICES] = { IW_MODE_MASTER, DEF_INTS };
69module_param_array(iw_mode, int, NULL, 0444);
70MODULE_PARM_DESC(iw_mode, "Initial operation mode");
71
72static int beacon_int[MAX_PARM_DEVICES] = { 100, DEF_INTS };
73module_param_array(beacon_int, int, NULL, 0444);
74MODULE_PARM_DESC(beacon_int, "Beacon interval (1 = 1024 usec)");
75
76static int dtim_period[MAX_PARM_DEVICES] = { 1, DEF_INTS };
77module_param_array(dtim_period, int, NULL, 0444);
78MODULE_PARM_DESC(dtim_period, "DTIM period");
79
80static char dev_template[16] = "wlan%d";
81module_param_string(dev_template, dev_template, sizeof(dev_template), 0444);
82MODULE_PARM_DESC(dev_template, "Prefix for network device name (default: "
83 "wlan%d)");
84
85#ifdef final_version
86#define EXTRA_EVENTS_WTERR 0
87#else
88
89#define EXTRA_EVENTS_WTERR HFA384X_EV_WTERR
90#endif
91
92
93#define HFA384X_BAP0_EVENTS \
94 (HFA384X_EV_TXEXC | HFA384X_EV_RX | HFA384X_EV_INFO | HFA384X_EV_TX)
95
96
97#define HFA384X_EVENT_MASK \
98 (HFA384X_BAP0_EVENTS | HFA384X_EV_ALLOC | HFA384X_EV_INFDROP | \
99 HFA384X_EV_CMD | HFA384X_EV_TICK | \
100 EXTRA_EVENTS_WTERR)
101
102
103
104
105
106#define HFA384X_TX_CTRL_FLAGS \
107 (HFA384X_TX_CTRL_802_11 | HFA384X_TX_CTRL_TX_EX)
108
109
110
111#define HFA384X_CMD_BUSY_TIMEOUT 5000
112#define HFA384X_BAP_BUSY_TIMEOUT 50000
113
114
115#define HFA384X_CMD_COMPL_TIMEOUT 20000
116#define HFA384X_DL_COMPL_TIMEOUT 1000000
117
118
119
120#define HFA384X_INIT_TIMEOUT (HZ / 2)
121#define HFA384X_ALLOC_COMPL_TIMEOUT (HZ / 20)
122
123
124static void prism2_hw_reset(struct net_device *dev);
125static void prism2_check_sta_fw_version(local_info_t *local);
126
127#ifdef PRISM2_DOWNLOAD_SUPPORT
128
129static const struct file_operations prism2_download_aux_dump_proc_fops;
130static u8 * prism2_read_pda(struct net_device *dev);
131static int prism2_download(local_info_t *local,
132 struct prism2_download_param *param);
133static void prism2_download_free_data(struct prism2_download_data *dl);
134static int prism2_download_volatile(local_info_t *local,
135 struct prism2_download_data *param);
136static int prism2_download_genesis(local_info_t *local,
137 struct prism2_download_data *param);
138static int prism2_get_ram_size(local_info_t *local);
139#endif
140
141
142
143
144#ifndef final_version
145
146
147#define HFA384X_MAGIC 0x8A32
148#endif
149
150
151static u16 hfa384x_read_reg(struct net_device *dev, u16 reg)
152{
153 return HFA384X_INW(reg);
154}
155
156
157static void hfa384x_read_regs(struct net_device *dev,
158 struct hfa384x_regs *regs)
159{
160 regs->cmd = HFA384X_INW(HFA384X_CMD_OFF);
161 regs->evstat = HFA384X_INW(HFA384X_EVSTAT_OFF);
162 regs->offset0 = HFA384X_INW(HFA384X_OFFSET0_OFF);
163 regs->offset1 = HFA384X_INW(HFA384X_OFFSET1_OFF);
164 regs->swsupport0 = HFA384X_INW(HFA384X_SWSUPPORT0_OFF);
165}
166
167
168
169
170
171
172
173
174
175
176
177static inline void __hostap_cmd_queue_free(local_info_t *local,
178 struct hostap_cmd_queue *entry,
179 int del_req)
180{
181 if (del_req) {
182 entry->del_req = 1;
183 if (!list_empty(&entry->list)) {
184 list_del_init(&entry->list);
185 local->cmd_queue_len--;
186 }
187 }
188
189 if (refcount_dec_and_test(&entry->usecnt) && entry->del_req)
190 kfree(entry);
191}
192
193
194
195
196
197
198
199
200
201
202static inline void hostap_cmd_queue_free(local_info_t *local,
203 struct hostap_cmd_queue *entry,
204 int del_req)
205{
206 unsigned long flags;
207
208 spin_lock_irqsave(&local->cmdlock, flags);
209 __hostap_cmd_queue_free(local, entry, del_req);
210 spin_unlock_irqrestore(&local->cmdlock, flags);
211}
212
213
214
215
216
217
218static void prism2_clear_cmd_queue(local_info_t *local)
219{
220 struct list_head *ptr, *n;
221 unsigned long flags;
222 struct hostap_cmd_queue *entry;
223
224 spin_lock_irqsave(&local->cmdlock, flags);
225 list_for_each_safe(ptr, n, &local->cmd_queue) {
226 entry = list_entry(ptr, struct hostap_cmd_queue, list);
227 refcount_inc(&entry->usecnt);
228 printk(KERN_DEBUG "%s: removed pending cmd_queue entry "
229 "(type=%d, cmd=0x%04x, param0=0x%04x)\n",
230 local->dev->name, entry->type, entry->cmd,
231 entry->param0);
232 __hostap_cmd_queue_free(local, entry, 1);
233 }
234 if (local->cmd_queue_len) {
235
236
237 printk(KERN_DEBUG "%s: cmd_queue_len (%d) not zero after "
238 "flush\n", local->dev->name, local->cmd_queue_len);
239 local->cmd_queue_len = 0;
240 }
241 spin_unlock_irqrestore(&local->cmdlock, flags);
242}
243
244
245
246
247
248
249
250static int hfa384x_cmd_issue(struct net_device *dev,
251 struct hostap_cmd_queue *entry)
252{
253 struct hostap_interface *iface;
254 local_info_t *local;
255 int tries;
256 u16 reg;
257 unsigned long flags;
258
259 iface = netdev_priv(dev);
260 local = iface->local;
261
262 if (local->func->card_present && !local->func->card_present(local))
263 return -ENODEV;
264
265 if (entry->issued) {
266 printk(KERN_DEBUG "%s: driver bug - re-issuing command @%p\n",
267 dev->name, entry);
268 }
269
270
271
272 tries = HFA384X_CMD_BUSY_TIMEOUT;
273 while (HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY && tries > 0) {
274 tries--;
275 udelay(1);
276 }
277#ifndef final_version
278 if (tries != HFA384X_CMD_BUSY_TIMEOUT) {
279 prism2_io_debug_error(dev, 1);
280 printk(KERN_DEBUG "%s: hfa384x_cmd_issue: cmd reg was busy "
281 "for %d usec\n", dev->name,
282 HFA384X_CMD_BUSY_TIMEOUT - tries);
283 }
284#endif
285 if (tries == 0) {
286 reg = HFA384X_INW(HFA384X_CMD_OFF);
287 prism2_io_debug_error(dev, 2);
288 printk(KERN_DEBUG "%s: hfa384x_cmd_issue - timeout - "
289 "reg=0x%04x\n", dev->name, reg);
290 return -ETIMEDOUT;
291 }
292
293
294 spin_lock_irqsave(&local->cmdlock, flags);
295 HFA384X_OUTW(entry->param0, HFA384X_PARAM0_OFF);
296 HFA384X_OUTW(entry->param1, HFA384X_PARAM1_OFF);
297 HFA384X_OUTW(entry->cmd, HFA384X_CMD_OFF);
298 entry->issued = 1;
299 spin_unlock_irqrestore(&local->cmdlock, flags);
300
301 return 0;
302}
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317static int hfa384x_cmd(struct net_device *dev, u16 cmd, u16 param0,
318 u16 *param1, u16 *resp0)
319{
320 struct hostap_interface *iface;
321 local_info_t *local;
322 int err, res, issue, issued = 0;
323 unsigned long flags;
324 struct hostap_cmd_queue *entry;
325 DECLARE_WAITQUEUE(wait, current);
326
327 iface = netdev_priv(dev);
328 local = iface->local;
329
330 if (in_interrupt()) {
331 printk(KERN_DEBUG "%s: hfa384x_cmd called from interrupt "
332 "context\n", dev->name);
333 return -1;
334 }
335
336 if (local->cmd_queue_len >= HOSTAP_CMD_QUEUE_MAX_LEN) {
337 printk(KERN_DEBUG "%s: hfa384x_cmd: cmd_queue full\n",
338 dev->name);
339 return -1;
340 }
341
342 if (signal_pending(current))
343 return -EINTR;
344
345 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
346 if (entry == NULL)
347 return -ENOMEM;
348
349 refcount_set(&entry->usecnt, 1);
350 entry->type = CMD_SLEEP;
351 entry->cmd = cmd;
352 entry->param0 = param0;
353 if (param1)
354 entry->param1 = *param1;
355 init_waitqueue_head(&entry->compl);
356
357
358
359 add_wait_queue(&entry->compl, &wait);
360 set_current_state(TASK_INTERRUPTIBLE);
361
362 spin_lock_irqsave(&local->cmdlock, flags);
363 issue = list_empty(&local->cmd_queue);
364 if (issue)
365 entry->issuing = 1;
366 list_add_tail(&entry->list, &local->cmd_queue);
367 local->cmd_queue_len++;
368 spin_unlock_irqrestore(&local->cmdlock, flags);
369
370 err = 0;
371 if (!issue)
372 goto wait_completion;
373
374 if (signal_pending(current))
375 err = -EINTR;
376
377 if (!err) {
378 if (hfa384x_cmd_issue(dev, entry))
379 err = -ETIMEDOUT;
380 else
381 issued = 1;
382 }
383
384 wait_completion:
385 if (!err && entry->type != CMD_COMPLETED) {
386
387 res = schedule_timeout(2 * HZ);
388 } else
389 res = -1;
390
391 if (!err && signal_pending(current))
392 err = -EINTR;
393
394 if (err && issued) {
395
396
397
398
399
400 udelay(300);
401 }
402
403 set_current_state(TASK_RUNNING);
404 remove_wait_queue(&entry->compl, &wait);
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423 spin_lock_irqsave(&local->cmdlock, flags);
424 if (!list_empty(&entry->list)) {
425 printk(KERN_DEBUG "%s: hfa384x_cmd: entry still in list? "
426 "(entry=%p, type=%d, res=%d)\n", dev->name, entry,
427 entry->type, res);
428 list_del_init(&entry->list);
429 local->cmd_queue_len--;
430 }
431 spin_unlock_irqrestore(&local->cmdlock, flags);
432
433 if (err) {
434 printk(KERN_DEBUG "%s: hfa384x_cmd: interrupted; err=%d\n",
435 dev->name, err);
436 res = err;
437 goto done;
438 }
439
440 if (entry->type != CMD_COMPLETED) {
441 u16 reg = HFA384X_INW(HFA384X_EVSTAT_OFF);
442 printk(KERN_DEBUG "%s: hfa384x_cmd: command was not "
443 "completed (res=%d, entry=%p, type=%d, cmd=0x%04x, "
444 "param0=0x%04x, EVSTAT=%04x INTEN=%04x)\n", dev->name,
445 res, entry, entry->type, entry->cmd, entry->param0, reg,
446 HFA384X_INW(HFA384X_INTEN_OFF));
447 if (reg & HFA384X_EV_CMD) {
448
449
450
451 printk(KERN_WARNING "%s: interrupt delivery does not "
452 "seem to work\n", dev->name);
453 }
454 prism2_io_debug_error(dev, 3);
455 res = -ETIMEDOUT;
456 goto done;
457 }
458
459 if (resp0 != NULL)
460 *resp0 = entry->resp0;
461#ifndef final_version
462 if (entry->res) {
463 printk(KERN_DEBUG "%s: CMD=0x%04x => res=0x%02x, "
464 "resp0=0x%04x\n",
465 dev->name, cmd, entry->res, entry->resp0);
466 }
467#endif
468
469 res = entry->res;
470 done:
471 hostap_cmd_queue_free(local, entry, 1);
472 return res;
473}
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490static int hfa384x_cmd_callback(struct net_device *dev, u16 cmd, u16 param0,
491 void (*callback)(struct net_device *dev,
492 long context, u16 resp0,
493 u16 status),
494 long context)
495{
496 struct hostap_interface *iface;
497 local_info_t *local;
498 int issue, ret;
499 unsigned long flags;
500 struct hostap_cmd_queue *entry;
501
502 iface = netdev_priv(dev);
503 local = iface->local;
504
505 if (local->cmd_queue_len >= HOSTAP_CMD_QUEUE_MAX_LEN + 2) {
506 printk(KERN_DEBUG "%s: hfa384x_cmd: cmd_queue full\n",
507 dev->name);
508 return -1;
509 }
510
511 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
512 if (entry == NULL)
513 return -ENOMEM;
514
515 refcount_set(&entry->usecnt, 1);
516 entry->type = CMD_CALLBACK;
517 entry->cmd = cmd;
518 entry->param0 = param0;
519 entry->callback = callback;
520 entry->context = context;
521
522 spin_lock_irqsave(&local->cmdlock, flags);
523 issue = list_empty(&local->cmd_queue);
524 if (issue)
525 entry->issuing = 1;
526 list_add_tail(&entry->list, &local->cmd_queue);
527 local->cmd_queue_len++;
528 spin_unlock_irqrestore(&local->cmdlock, flags);
529
530 if (issue && hfa384x_cmd_issue(dev, entry))
531 ret = -ETIMEDOUT;
532 else
533 ret = 0;
534
535 hostap_cmd_queue_free(local, entry, ret);
536
537 return ret;
538}
539
540
541
542
543
544
545
546
547
548
549
550static int __hfa384x_cmd_no_wait(struct net_device *dev, u16 cmd, u16 param0,
551 int io_debug_num)
552{
553 int tries;
554 u16 reg;
555
556
557
558 tries = HFA384X_CMD_BUSY_TIMEOUT;
559 while (HFA384X_INW(HFA384X_CMD_OFF) & HFA384X_CMD_BUSY && tries > 0) {
560 tries--;
561 udelay(1);
562 }
563 if (tries == 0) {
564 reg = HFA384X_INW(HFA384X_CMD_OFF);
565 prism2_io_debug_error(dev, io_debug_num);
566 printk(KERN_DEBUG "%s: __hfa384x_cmd_no_wait(%d) - timeout - "
567 "reg=0x%04x\n", dev->name, io_debug_num, reg);
568 return -ETIMEDOUT;
569 }
570
571
572 HFA384X_OUTW(param0, HFA384X_PARAM0_OFF);
573 HFA384X_OUTW(cmd, HFA384X_CMD_OFF);
574
575 return 0;
576}
577
578
579
580
581
582
583
584
585static int hfa384x_cmd_wait(struct net_device *dev, u16 cmd, u16 param0)
586{
587 int res, tries;
588 u16 reg;
589
590 res = __hfa384x_cmd_no_wait(dev, cmd, param0, 4);
591 if (res)
592 return res;
593
594
595 if ((cmd & HFA384X_CMDCODE_MASK) == HFA384X_CMDCODE_DOWNLOAD)
596 tries = HFA384X_DL_COMPL_TIMEOUT;
597 else
598 tries = HFA384X_CMD_COMPL_TIMEOUT;
599
600 while (!(HFA384X_INW(HFA384X_EVSTAT_OFF) & HFA384X_EV_CMD) &&
601 tries > 0) {
602 tries--;
603 udelay(10);
604 }
605 if (tries == 0) {
606 reg = HFA384X_INW(HFA384X_EVSTAT_OFF);
607 prism2_io_debug_error(dev, 5);
608 printk(KERN_DEBUG "%s: hfa384x_cmd_wait - timeout2 - "
609 "reg=0x%04x\n", dev->name, reg);
610 return -ETIMEDOUT;
611 }
612
613 res = (HFA384X_INW(HFA384X_STATUS_OFF) &
614 (BIT(14) | BIT(13) | BIT(12) | BIT(11) | BIT(10) | BIT(9) |
615 BIT(8))) >> 8;
616#ifndef final_version
617 if (res) {
618 printk(KERN_DEBUG "%s: CMD=0x%04x => res=0x%02x\n",
619 dev->name, cmd, res);
620 }
621#endif
622
623 HFA384X_OUTW(HFA384X_EV_CMD, HFA384X_EVACK_OFF);
624
625 return res;
626}
627
628
629
630
631
632
633
634
635static inline int hfa384x_cmd_no_wait(struct net_device *dev, u16 cmd,
636 u16 param0)
637{
638 return __hfa384x_cmd_no_wait(dev, cmd, param0, 6);
639}
640
641
642
643
644
645
646
647
648
649
650
651
652static void prism2_cmd_ev(struct net_device *dev)
653{
654 struct hostap_interface *iface;
655 local_info_t *local;
656 struct hostap_cmd_queue *entry = NULL;
657
658 iface = netdev_priv(dev);
659 local = iface->local;
660
661 spin_lock(&local->cmdlock);
662 if (!list_empty(&local->cmd_queue)) {
663 entry = list_entry(local->cmd_queue.next,
664 struct hostap_cmd_queue, list);
665 refcount_inc(&entry->usecnt);
666 list_del_init(&entry->list);
667 local->cmd_queue_len--;
668
669 if (!entry->issued) {
670 printk(KERN_DEBUG "%s: Command completion event, but "
671 "cmd not issued\n", dev->name);
672 __hostap_cmd_queue_free(local, entry, 1);
673 entry = NULL;
674 }
675 }
676 spin_unlock(&local->cmdlock);
677
678 if (!entry) {
679 HFA384X_OUTW(HFA384X_EV_CMD, HFA384X_EVACK_OFF);
680 printk(KERN_DEBUG "%s: Command completion event, but no "
681 "pending commands\n", dev->name);
682 return;
683 }
684
685 entry->resp0 = HFA384X_INW(HFA384X_RESP0_OFF);
686 entry->res = (HFA384X_INW(HFA384X_STATUS_OFF) &
687 (BIT(14) | BIT(13) | BIT(12) | BIT(11) | BIT(10) |
688 BIT(9) | BIT(8))) >> 8;
689 HFA384X_OUTW(HFA384X_EV_CMD, HFA384X_EVACK_OFF);
690
691
692 if (entry->type == CMD_SLEEP) {
693 entry->type = CMD_COMPLETED;
694 wake_up_interruptible(&entry->compl);
695 } else if (entry->type == CMD_CALLBACK) {
696 if (entry->callback)
697 entry->callback(dev, entry->context, entry->resp0,
698 entry->res);
699 } else {
700 printk(KERN_DEBUG "%s: Invalid command completion type %d\n",
701 dev->name, entry->type);
702 }
703 hostap_cmd_queue_free(local, entry, 1);
704
705
706 entry = NULL;
707 spin_lock(&local->cmdlock);
708 if (!list_empty(&local->cmd_queue)) {
709 entry = list_entry(local->cmd_queue.next,
710 struct hostap_cmd_queue, list);
711 if (entry->issuing) {
712
713
714 entry = NULL;
715 }
716 if (entry)
717 refcount_inc(&entry->usecnt);
718 }
719 spin_unlock(&local->cmdlock);
720
721 if (entry) {
722
723
724 int res = hfa384x_cmd_issue(dev, entry);
725 spin_lock(&local->cmdlock);
726 __hostap_cmd_queue_free(local, entry, res);
727 spin_unlock(&local->cmdlock);
728 }
729}
730
731
732static int hfa384x_wait_offset(struct net_device *dev, u16 o_off)
733{
734 int tries = HFA384X_BAP_BUSY_TIMEOUT;
735 int res = HFA384X_INW(o_off) & HFA384X_OFFSET_BUSY;
736
737 while (res && tries > 0) {
738 tries--;
739 udelay(1);
740 res = HFA384X_INW(o_off) & HFA384X_OFFSET_BUSY;
741 }
742 return res;
743}
744
745
746
747static int hfa384x_setup_bap(struct net_device *dev, u16 bap, u16 id,
748 int offset)
749{
750 u16 o_off, s_off;
751 int ret = 0;
752
753 if (offset % 2 || bap > 1)
754 return -EINVAL;
755
756 if (bap == BAP1) {
757 o_off = HFA384X_OFFSET1_OFF;
758 s_off = HFA384X_SELECT1_OFF;
759 } else {
760 o_off = HFA384X_OFFSET0_OFF;
761 s_off = HFA384X_SELECT0_OFF;
762 }
763
764 if (hfa384x_wait_offset(dev, o_off)) {
765 prism2_io_debug_error(dev, 7);
766 printk(KERN_DEBUG "%s: hfa384x_setup_bap - timeout before\n",
767 dev->name);
768 ret = -ETIMEDOUT;
769 goto out;
770 }
771
772 HFA384X_OUTW(id, s_off);
773 HFA384X_OUTW(offset, o_off);
774
775 if (hfa384x_wait_offset(dev, o_off)) {
776 prism2_io_debug_error(dev, 8);
777 printk(KERN_DEBUG "%s: hfa384x_setup_bap - timeout after\n",
778 dev->name);
779 ret = -ETIMEDOUT;
780 goto out;
781 }
782#ifndef final_version
783 if (HFA384X_INW(o_off) & HFA384X_OFFSET_ERR) {
784 prism2_io_debug_error(dev, 9);
785 printk(KERN_DEBUG "%s: hfa384x_setup_bap - offset error "
786 "(%d,0x04%x,%d); reg=0x%04x\n",
787 dev->name, bap, id, offset, HFA384X_INW(o_off));
788 ret = -EINVAL;
789 }
790#endif
791
792 out:
793 return ret;
794}
795
796
797static int hfa384x_get_rid(struct net_device *dev, u16 rid, void *buf, int len,
798 int exact_len)
799{
800 struct hostap_interface *iface;
801 local_info_t *local;
802 int res, rlen = 0;
803 struct hfa384x_rid_hdr rec;
804
805 iface = netdev_priv(dev);
806 local = iface->local;
807
808 if (local->no_pri) {
809 printk(KERN_DEBUG "%s: cannot get RID %04x (len=%d) - no PRI "
810 "f/w\n", dev->name, rid, len);
811 return -ENOTTY;
812
813 }
814
815 if ((local->func->card_present && !local->func->card_present(local)) ||
816 local->hw_downloading)
817 return -ENODEV;
818
819 res = mutex_lock_interruptible(&local->rid_bap_mtx);
820 if (res)
821 return res;
822
823 res = hfa384x_cmd(dev, HFA384X_CMDCODE_ACCESS, rid, NULL, NULL);
824 if (res) {
825 printk(KERN_DEBUG "%s: hfa384x_get_rid: CMDCODE_ACCESS failed "
826 "(res=%d, rid=%04x, len=%d)\n",
827 dev->name, res, rid, len);
828 mutex_unlock(&local->rid_bap_mtx);
829 return res;
830 }
831
832 spin_lock_bh(&local->baplock);
833
834 res = hfa384x_setup_bap(dev, BAP0, rid, 0);
835 if (res)
836 goto unlock;
837
838 res = hfa384x_from_bap(dev, BAP0, &rec, sizeof(rec));
839 if (res)
840 goto unlock;
841
842 if (le16_to_cpu(rec.len) == 0) {
843
844 res = -ENODATA;
845 goto unlock;
846 }
847
848 rlen = (le16_to_cpu(rec.len) - 1) * 2;
849 if (exact_len && rlen != len) {
850 printk(KERN_DEBUG "%s: hfa384x_get_rid - RID len mismatch: "
851 "rid=0x%04x, len=%d (expected %d)\n",
852 dev->name, rid, rlen, len);
853 res = -ENODATA;
854 }
855
856 res = hfa384x_from_bap(dev, BAP0, buf, len);
857
858unlock:
859 spin_unlock_bh(&local->baplock);
860 mutex_unlock(&local->rid_bap_mtx);
861
862 if (res) {
863 if (res != -ENODATA)
864 printk(KERN_DEBUG "%s: hfa384x_get_rid (rid=%04x, "
865 "len=%d) - failed - res=%d\n", dev->name, rid,
866 len, res);
867 if (res == -ETIMEDOUT)
868 prism2_hw_reset(dev);
869 return res;
870 }
871
872 return rlen;
873}
874
875
876static int hfa384x_set_rid(struct net_device *dev, u16 rid, void *buf, int len)
877{
878 struct hostap_interface *iface;
879 local_info_t *local;
880 struct hfa384x_rid_hdr rec;
881 int res;
882
883 iface = netdev_priv(dev);
884 local = iface->local;
885
886 if (local->no_pri) {
887 printk(KERN_DEBUG "%s: cannot set RID %04x (len=%d) - no PRI "
888 "f/w\n", dev->name, rid, len);
889 return -ENOTTY;
890
891 }
892
893 if ((local->func->card_present && !local->func->card_present(local)) ||
894 local->hw_downloading)
895 return -ENODEV;
896
897 rec.rid = cpu_to_le16(rid);
898
899 rec.len = cpu_to_le16(len / 2 + len % 2 + 1);
900
901 res = mutex_lock_interruptible(&local->rid_bap_mtx);
902 if (res)
903 return res;
904
905 spin_lock_bh(&local->baplock);
906 res = hfa384x_setup_bap(dev, BAP0, rid, 0);
907 if (!res)
908 res = hfa384x_to_bap(dev, BAP0, &rec, sizeof(rec));
909 if (!res)
910 res = hfa384x_to_bap(dev, BAP0, buf, len);
911 spin_unlock_bh(&local->baplock);
912
913 if (res) {
914 printk(KERN_DEBUG "%s: hfa384x_set_rid (rid=%04x, len=%d) - "
915 "failed - res=%d\n", dev->name, rid, len, res);
916 mutex_unlock(&local->rid_bap_mtx);
917 return res;
918 }
919
920 res = hfa384x_cmd(dev, HFA384X_CMDCODE_ACCESS_WRITE, rid, NULL, NULL);
921 mutex_unlock(&local->rid_bap_mtx);
922
923 if (res) {
924 printk(KERN_DEBUG "%s: hfa384x_set_rid: CMDCODE_ACCESS_WRITE "
925 "failed (res=%d, rid=%04x, len=%d)\n",
926 dev->name, res, rid, len);
927
928 if (res == -ETIMEDOUT)
929 prism2_hw_reset(dev);
930 }
931
932 return res;
933}
934
935
936static void hfa384x_disable_interrupts(struct net_device *dev)
937{
938
939 HFA384X_OUTW(0, HFA384X_INTEN_OFF);
940 HFA384X_OUTW(0xffff, HFA384X_EVACK_OFF);
941}
942
943
944static void hfa384x_enable_interrupts(struct net_device *dev)
945{
946
947 HFA384X_OUTW(0xffff, HFA384X_EVACK_OFF);
948 HFA384X_OUTW(HFA384X_EVENT_MASK, HFA384X_INTEN_OFF);
949}
950
951
952static void hfa384x_events_no_bap0(struct net_device *dev)
953{
954 HFA384X_OUTW(HFA384X_EVENT_MASK & ~HFA384X_BAP0_EVENTS,
955 HFA384X_INTEN_OFF);
956}
957
958
959static void hfa384x_events_all(struct net_device *dev)
960{
961 HFA384X_OUTW(HFA384X_EVENT_MASK, HFA384X_INTEN_OFF);
962}
963
964
965static void hfa384x_events_only_cmd(struct net_device *dev)
966{
967 HFA384X_OUTW(HFA384X_EV_CMD, HFA384X_INTEN_OFF);
968}
969
970
971static u16 hfa384x_allocate_fid(struct net_device *dev, int len)
972{
973 u16 fid;
974 unsigned long delay;
975
976
977
978
979 if (hfa384x_cmd_wait(dev, HFA384X_CMDCODE_ALLOC, len)) {
980 printk(KERN_DEBUG "%s: cannot allocate fid, len=%d\n",
981 dev->name, len);
982 return 0xffff;
983 }
984
985 delay = jiffies + HFA384X_ALLOC_COMPL_TIMEOUT;
986 while (!(HFA384X_INW(HFA384X_EVSTAT_OFF) & HFA384X_EV_ALLOC) &&
987 time_before(jiffies, delay))
988 yield();
989 if (!(HFA384X_INW(HFA384X_EVSTAT_OFF) & HFA384X_EV_ALLOC)) {
990 printk("%s: fid allocate, len=%d - timeout\n", dev->name, len);
991 return 0xffff;
992 }
993
994 fid = HFA384X_INW(HFA384X_ALLOCFID_OFF);
995 HFA384X_OUTW(HFA384X_EV_ALLOC, HFA384X_EVACK_OFF);
996
997 return fid;
998}
999
1000
1001static int prism2_reset_port(struct net_device *dev)
1002{
1003 struct hostap_interface *iface;
1004 local_info_t *local;
1005 int res;
1006
1007 iface = netdev_priv(dev);
1008 local = iface->local;
1009
1010 if (!local->dev_enabled)
1011 return 0;
1012
1013 res = hfa384x_cmd(dev, HFA384X_CMDCODE_DISABLE, 0,
1014 NULL, NULL);
1015 if (res)
1016 printk(KERN_DEBUG "%s: reset port failed to disable port\n",
1017 dev->name);
1018 else {
1019 res = hfa384x_cmd(dev, HFA384X_CMDCODE_ENABLE, 0,
1020 NULL, NULL);
1021 if (res)
1022 printk(KERN_DEBUG "%s: reset port failed to enable "
1023 "port\n", dev->name);
1024 }
1025
1026
1027
1028
1029 if (local->fragm_threshold != 2346 &&
1030 hostap_set_word(dev, HFA384X_RID_FRAGMENTATIONTHRESHOLD,
1031 local->fragm_threshold)) {
1032 printk(KERN_DEBUG "%s: failed to restore fragmentation "
1033 "threshold (%d) after Port0 enable\n",
1034 dev->name, local->fragm_threshold);
1035 }
1036
1037
1038 (void) hostap_set_antsel(local);
1039
1040 return res;
1041}
1042
1043
1044static int prism2_get_version_info(struct net_device *dev, u16 rid,
1045 const char *txt)
1046{
1047 struct hfa384x_comp_ident comp;
1048 struct hostap_interface *iface;
1049 local_info_t *local;
1050
1051 iface = netdev_priv(dev);
1052 local = iface->local;
1053
1054 if (local->no_pri) {
1055
1056 return -1;
1057 }
1058 if (hfa384x_get_rid(dev, rid, &comp, sizeof(comp), 1) < 0) {
1059 printk(KERN_DEBUG "Could not get RID for component %s\n", txt);
1060 return -1;
1061 }
1062
1063 printk(KERN_INFO "%s: %s: id=0x%02x v%d.%d.%d\n", dev->name, txt,
1064 __le16_to_cpu(comp.id), __le16_to_cpu(comp.major),
1065 __le16_to_cpu(comp.minor), __le16_to_cpu(comp.variant));
1066 return 0;
1067}
1068
1069
1070static int prism2_setup_rids(struct net_device *dev)
1071{
1072 struct hostap_interface *iface;
1073 local_info_t *local;
1074 __le16 tmp;
1075 int ret = 0;
1076
1077 iface = netdev_priv(dev);
1078 local = iface->local;
1079
1080 hostap_set_word(dev, HFA384X_RID_TICKTIME, 2000);
1081
1082 if (!local->fw_ap) {
1083 u16 tmp1 = hostap_get_porttype(local);
1084 ret = hostap_set_word(dev, HFA384X_RID_CNFPORTTYPE, tmp1);
1085 if (ret) {
1086 printk("%s: Port type setting to %d failed\n",
1087 dev->name, tmp1);
1088 goto fail;
1089 }
1090 }
1091
1092
1093
1094 if (local->iw_mode != IW_MODE_MASTER || local->essid[0] != '\0') {
1095 ret = hostap_set_string(dev, HFA384X_RID_CNFOWNSSID,
1096 local->essid);
1097 if (ret) {
1098 printk("%s: AP own SSID setting failed\n", dev->name);
1099 goto fail;
1100 }
1101 }
1102
1103 ret = hostap_set_word(dev, HFA384X_RID_CNFMAXDATALEN,
1104 PRISM2_DATA_MAXLEN);
1105 if (ret) {
1106 printk("%s: MAC data length setting to %d failed\n",
1107 dev->name, PRISM2_DATA_MAXLEN);
1108 goto fail;
1109 }
1110
1111 if (hfa384x_get_rid(dev, HFA384X_RID_CHANNELLIST, &tmp, 2, 1) < 0) {
1112 printk("%s: Channel list read failed\n", dev->name);
1113 ret = -EINVAL;
1114 goto fail;
1115 }
1116 local->channel_mask = le16_to_cpu(tmp);
1117
1118 if (local->channel < 1 || local->channel > 14 ||
1119 !(local->channel_mask & (1 << (local->channel - 1)))) {
1120 printk(KERN_WARNING "%s: Channel setting out of range "
1121 "(%d)!\n", dev->name, local->channel);
1122 ret = -EBUSY;
1123 goto fail;
1124 }
1125
1126 ret = hostap_set_word(dev, HFA384X_RID_CNFOWNCHANNEL, local->channel);
1127 if (ret) {
1128 printk("%s: Channel setting to %d failed\n",
1129 dev->name, local->channel);
1130 goto fail;
1131 }
1132
1133 ret = hostap_set_word(dev, HFA384X_RID_CNFBEACONINT,
1134 local->beacon_int);
1135 if (ret) {
1136 printk("%s: Beacon interval setting to %d failed\n",
1137 dev->name, local->beacon_int);
1138
1139 if (ret == -ETIMEDOUT)
1140 goto fail;
1141 }
1142
1143 ret = hostap_set_word(dev, HFA384X_RID_CNFOWNDTIMPERIOD,
1144 local->dtim_period);
1145 if (ret) {
1146 printk("%s: DTIM period setting to %d failed\n",
1147 dev->name, local->dtim_period);
1148
1149 if (ret == -ETIMEDOUT)
1150 goto fail;
1151 }
1152
1153 ret = hostap_set_word(dev, HFA384X_RID_PROMISCUOUSMODE,
1154 local->is_promisc);
1155 if (ret)
1156 printk(KERN_INFO "%s: Setting promiscuous mode (%d) failed\n",
1157 dev->name, local->is_promisc);
1158
1159 if (!local->fw_ap) {
1160 ret = hostap_set_string(dev, HFA384X_RID_CNFDESIREDSSID,
1161 local->essid);
1162 if (ret) {
1163 printk("%s: Desired SSID setting failed\n", dev->name);
1164 goto fail;
1165 }
1166 }
1167
1168
1169
1170
1171 if (local->tx_rate_control == 0) {
1172 local->tx_rate_control =
1173 HFA384X_RATES_1MBPS |
1174 HFA384X_RATES_2MBPS |
1175 HFA384X_RATES_5MBPS |
1176 HFA384X_RATES_11MBPS;
1177 }
1178 if (local->basic_rates == 0)
1179 local->basic_rates = HFA384X_RATES_1MBPS | HFA384X_RATES_2MBPS;
1180
1181 if (!local->fw_ap) {
1182 ret = hostap_set_word(dev, HFA384X_RID_TXRATECONTROL,
1183 local->tx_rate_control);
1184 if (ret) {
1185 printk("%s: TXRateControl setting to %d failed\n",
1186 dev->name, local->tx_rate_control);
1187 goto fail;
1188 }
1189
1190 ret = hostap_set_word(dev, HFA384X_RID_CNFSUPPORTEDRATES,
1191 local->tx_rate_control);
1192 if (ret) {
1193 printk("%s: cnfSupportedRates setting to %d failed\n",
1194 dev->name, local->tx_rate_control);
1195 }
1196
1197 ret = hostap_set_word(dev, HFA384X_RID_CNFBASICRATES,
1198 local->basic_rates);
1199 if (ret) {
1200 printk("%s: cnfBasicRates setting to %d failed\n",
1201 dev->name, local->basic_rates);
1202 }
1203
1204 ret = hostap_set_word(dev, HFA384X_RID_CREATEIBSS, 1);
1205 if (ret) {
1206 printk("%s: Create IBSS setting to 1 failed\n",
1207 dev->name);
1208 }
1209 }
1210
1211 if (local->name_set)
1212 (void) hostap_set_string(dev, HFA384X_RID_CNFOWNNAME,
1213 local->name);
1214
1215 if (hostap_set_encryption(local)) {
1216 printk(KERN_INFO "%s: could not configure encryption\n",
1217 dev->name);
1218 }
1219
1220 (void) hostap_set_antsel(local);
1221
1222 if (hostap_set_roaming(local)) {
1223 printk(KERN_INFO "%s: could not set host roaming\n",
1224 dev->name);
1225 }
1226
1227 if (local->sta_fw_ver >= PRISM2_FW_VER(1,6,3) &&
1228 hostap_set_word(dev, HFA384X_RID_CNFENHSECURITY, local->enh_sec))
1229 printk(KERN_INFO "%s: cnfEnhSecurity setting to 0x%x failed\n",
1230 dev->name, local->enh_sec);
1231
1232
1233
1234
1235
1236
1237
1238 if (local->sta_fw_ver >= PRISM2_FW_VER(0,8,2)) {
1239 if (hostap_set_word(dev, HFA384X_RID_CNFTHIRTY2TALLY, 1)) {
1240 printk(KERN_INFO "%s: cnfThirty2Tally setting "
1241 "failed\n", dev->name);
1242 local->tallies32 = 0;
1243 } else
1244 local->tallies32 = 1;
1245 } else
1246 local->tallies32 = 0;
1247
1248 hostap_set_auth_algs(local);
1249
1250 if (hostap_set_word(dev, HFA384X_RID_FRAGMENTATIONTHRESHOLD,
1251 local->fragm_threshold)) {
1252 printk(KERN_INFO "%s: setting FragmentationThreshold to %d "
1253 "failed\n", dev->name, local->fragm_threshold);
1254 }
1255
1256 if (hostap_set_word(dev, HFA384X_RID_RTSTHRESHOLD,
1257 local->rts_threshold)) {
1258 printk(KERN_INFO "%s: setting RTSThreshold to %d failed\n",
1259 dev->name, local->rts_threshold);
1260 }
1261
1262 if (local->manual_retry_count >= 0 &&
1263 hostap_set_word(dev, HFA384X_RID_CNFALTRETRYCOUNT,
1264 local->manual_retry_count)) {
1265 printk(KERN_INFO "%s: setting cnfAltRetryCount to %d failed\n",
1266 dev->name, local->manual_retry_count);
1267 }
1268
1269 if (local->sta_fw_ver >= PRISM2_FW_VER(1,3,1) &&
1270 hfa384x_get_rid(dev, HFA384X_RID_CNFDBMADJUST, &tmp, 2, 1) == 2) {
1271 local->rssi_to_dBm = le16_to_cpu(tmp);
1272 }
1273
1274 if (local->sta_fw_ver >= PRISM2_FW_VER(1,7,0) && local->wpa &&
1275 hostap_set_word(dev, HFA384X_RID_SSNHANDLINGMODE, 1)) {
1276 printk(KERN_INFO "%s: setting ssnHandlingMode to 1 failed\n",
1277 dev->name);
1278 }
1279
1280 if (local->sta_fw_ver >= PRISM2_FW_VER(1,7,0) && local->generic_elem &&
1281 hfa384x_set_rid(dev, HFA384X_RID_GENERICELEMENT,
1282 local->generic_elem, local->generic_elem_len)) {
1283 printk(KERN_INFO "%s: setting genericElement failed\n",
1284 dev->name);
1285 }
1286
1287 fail:
1288 return ret;
1289}
1290
1291
1292static int prism2_hw_init(struct net_device *dev, int initial)
1293{
1294 struct hostap_interface *iface;
1295 local_info_t *local;
1296 int ret, first = 1;
1297 unsigned long start, delay;
1298
1299 PDEBUG(DEBUG_FLOW, "prism2_hw_init()\n");
1300
1301 iface = netdev_priv(dev);
1302 local = iface->local;
1303
1304 clear_bit(HOSTAP_BITS_TRANSMIT, &local->bits);
1305
1306 init:
1307
1308 ret = hfa384x_cmd_no_wait(dev, HFA384X_CMDCODE_INIT, 0);
1309 if (ret) {
1310 printk(KERN_INFO "%s: first command failed - assuming card "
1311 "does not have primary firmware\n", dev_info);
1312 }
1313
1314 if (first && (HFA384X_INW(HFA384X_EVSTAT_OFF) & HFA384X_EV_CMD)) {
1315
1316
1317 HFA384X_OUTW(HFA384X_EV_CMD, HFA384X_EVACK_OFF);
1318 printk(KERN_DEBUG "%s: init command completed too quickly - "
1319 "retrying\n", dev->name);
1320 first = 0;
1321 goto init;
1322 }
1323
1324 start = jiffies;
1325 delay = jiffies + HFA384X_INIT_TIMEOUT;
1326 while (!(HFA384X_INW(HFA384X_EVSTAT_OFF) & HFA384X_EV_CMD) &&
1327 time_before(jiffies, delay))
1328 yield();
1329 if (!(HFA384X_INW(HFA384X_EVSTAT_OFF) & HFA384X_EV_CMD)) {
1330 printk(KERN_DEBUG "%s: assuming no Primary image in "
1331 "flash - card initialization not completed\n",
1332 dev_info);
1333 local->no_pri = 1;
1334#ifdef PRISM2_DOWNLOAD_SUPPORT
1335 if (local->sram_type == -1)
1336 local->sram_type = prism2_get_ram_size(local);
1337#endif
1338 return 1;
1339 }
1340 local->no_pri = 0;
1341 printk(KERN_DEBUG "prism2_hw_init: initialized in %lu ms\n",
1342 (jiffies - start) * 1000 / HZ);
1343 HFA384X_OUTW(HFA384X_EV_CMD, HFA384X_EVACK_OFF);
1344 return 0;
1345}
1346
1347
1348static int prism2_hw_init2(struct net_device *dev, int initial)
1349{
1350 struct hostap_interface *iface;
1351 local_info_t *local;
1352 int i;
1353
1354 iface = netdev_priv(dev);
1355 local = iface->local;
1356
1357#ifdef PRISM2_DOWNLOAD_SUPPORT
1358 kfree(local->pda);
1359 if (local->no_pri)
1360 local->pda = NULL;
1361 else
1362 local->pda = prism2_read_pda(dev);
1363#endif
1364
1365 hfa384x_disable_interrupts(dev);
1366
1367#ifndef final_version
1368 HFA384X_OUTW(HFA384X_MAGIC, HFA384X_SWSUPPORT0_OFF);
1369 if (HFA384X_INW(HFA384X_SWSUPPORT0_OFF) != HFA384X_MAGIC) {
1370 printk("SWSUPPORT0 write/read failed: %04X != %04X\n",
1371 HFA384X_INW(HFA384X_SWSUPPORT0_OFF), HFA384X_MAGIC);
1372 goto failed;
1373 }
1374#endif
1375
1376 if (initial || local->pri_only) {
1377 hfa384x_events_only_cmd(dev);
1378
1379 if (prism2_get_version_info(dev, HFA384X_RID_NICID, "NIC") ||
1380 prism2_get_version_info(dev, HFA384X_RID_PRIID, "PRI")) {
1381 hfa384x_disable_interrupts(dev);
1382 goto failed;
1383 }
1384
1385 if (prism2_get_version_info(dev, HFA384X_RID_STAID, "STA")) {
1386 printk(KERN_DEBUG "%s: Failed to read STA f/w version "
1387 "- only Primary f/w present\n", dev->name);
1388 local->pri_only = 1;
1389 return 0;
1390 }
1391 local->pri_only = 0;
1392 hfa384x_disable_interrupts(dev);
1393 }
1394
1395
1396
1397
1398
1399
1400 local->txfid_len = PRISM2_TXFID_LEN;
1401 for (i = 0; i < PRISM2_TXFID_COUNT; i++) {
1402 local->txfid[i] = hfa384x_allocate_fid(dev, local->txfid_len);
1403 if (local->txfid[i] == 0xffff && local->txfid_len > 1600) {
1404 local->txfid[i] = hfa384x_allocate_fid(dev, 1600);
1405 if (local->txfid[i] != 0xffff) {
1406 printk(KERN_DEBUG "%s: Using shorter TX FID "
1407 "(1600 bytes)\n", dev->name);
1408 local->txfid_len = 1600;
1409 }
1410 }
1411 if (local->txfid[i] == 0xffff)
1412 goto failed;
1413 local->intransmitfid[i] = PRISM2_TXFID_EMPTY;
1414 }
1415
1416 hfa384x_events_only_cmd(dev);
1417
1418 if (initial) {
1419 struct list_head *ptr;
1420 prism2_check_sta_fw_version(local);
1421
1422 if (hfa384x_get_rid(dev, HFA384X_RID_CNFOWNMACADDR,
1423 dev->dev_addr, 6, 1) < 0) {
1424 printk("%s: could not get own MAC address\n",
1425 dev->name);
1426 }
1427 list_for_each(ptr, &local->hostap_interfaces) {
1428 iface = list_entry(ptr, struct hostap_interface, list);
1429 eth_hw_addr_inherit(iface->dev, dev);
1430 }
1431 } else if (local->fw_ap)
1432 prism2_check_sta_fw_version(local);
1433
1434 prism2_setup_rids(dev);
1435
1436
1437 return 0;
1438
1439 failed:
1440 if (!local->no_pri)
1441 printk(KERN_WARNING "%s: Initialization failed\n", dev_info);
1442 return 1;
1443}
1444
1445
1446static int prism2_hw_enable(struct net_device *dev, int initial)
1447{
1448 struct hostap_interface *iface;
1449 local_info_t *local;
1450 int was_resetting;
1451
1452 iface = netdev_priv(dev);
1453 local = iface->local;
1454 was_resetting = local->hw_resetting;
1455
1456 if (hfa384x_cmd(dev, HFA384X_CMDCODE_ENABLE, 0, NULL, NULL)) {
1457 printk("%s: MAC port 0 enabling failed\n", dev->name);
1458 return 1;
1459 }
1460
1461 local->hw_ready = 1;
1462 local->hw_reset_tries = 0;
1463 local->hw_resetting = 0;
1464 hfa384x_enable_interrupts(dev);
1465
1466
1467
1468
1469 if (initial && prism2_reset_port(dev)) {
1470 printk("%s: MAC port 0 resetting failed\n", dev->name);
1471 return 1;
1472 }
1473
1474 if (was_resetting && netif_queue_stopped(dev)) {
1475
1476
1477
1478 netif_wake_queue(dev);
1479 }
1480
1481 return 0;
1482}
1483
1484
1485static int prism2_hw_config(struct net_device *dev, int initial)
1486{
1487 struct hostap_interface *iface;
1488 local_info_t *local;
1489
1490 iface = netdev_priv(dev);
1491 local = iface->local;
1492
1493 if (local->hw_downloading)
1494 return 1;
1495
1496 if (prism2_hw_init(dev, initial)) {
1497 return local->no_pri ? 0 : 1;
1498 }
1499
1500 if (prism2_hw_init2(dev, initial))
1501 return 1;
1502
1503
1504
1505 if (!local->pri_only &&
1506 (initial == 0 || (initial == 2 && local->num_dev_open > 0))) {
1507 if (!local->dev_enabled)
1508 prism2_callback(local, PRISM2_CALLBACK_ENABLE);
1509 local->dev_enabled = 1;
1510 return prism2_hw_enable(dev, initial);
1511 }
1512
1513 return 0;
1514}
1515
1516
1517static void prism2_hw_shutdown(struct net_device *dev, int no_disable)
1518{
1519 struct hostap_interface *iface;
1520 local_info_t *local;
1521
1522 iface = netdev_priv(dev);
1523 local = iface->local;
1524
1525
1526 hfa384x_events_only_cmd(dev);
1527
1528 local->hw_ready = 0;
1529 if (local->dev_enabled)
1530 prism2_callback(local, PRISM2_CALLBACK_DISABLE);
1531 local->dev_enabled = 0;
1532
1533 if (local->func->card_present && !local->func->card_present(local)) {
1534 printk(KERN_DEBUG "%s: card already removed or not configured "
1535 "during shutdown\n", dev->name);
1536 return;
1537 }
1538
1539 if ((no_disable & HOSTAP_HW_NO_DISABLE) == 0 &&
1540 hfa384x_cmd(dev, HFA384X_CMDCODE_DISABLE, 0, NULL, NULL))
1541 printk(KERN_WARNING "%s: Shutdown failed\n", dev_info);
1542
1543 hfa384x_disable_interrupts(dev);
1544
1545 if (no_disable & HOSTAP_HW_ENABLE_CMDCOMPL)
1546 hfa384x_events_only_cmd(dev);
1547 else
1548 prism2_clear_cmd_queue(local);
1549}
1550
1551
1552static void prism2_hw_reset(struct net_device *dev)
1553{
1554 struct hostap_interface *iface;
1555 local_info_t *local;
1556
1557#if 0
1558 static long last_reset = 0;
1559
1560
1561
1562 if (time_before_eq(jiffies, last_reset + HZ))
1563 return;
1564 last_reset = jiffies;
1565#endif
1566
1567 iface = netdev_priv(dev);
1568 local = iface->local;
1569
1570 if (in_interrupt()) {
1571 printk(KERN_DEBUG "%s: driver bug - prism2_hw_reset() called "
1572 "in interrupt context\n", dev->name);
1573 return;
1574 }
1575
1576 if (local->hw_downloading)
1577 return;
1578
1579 if (local->hw_resetting) {
1580 printk(KERN_WARNING "%s: %s: already resetting card - "
1581 "ignoring reset request\n", dev_info, dev->name);
1582 return;
1583 }
1584
1585 local->hw_reset_tries++;
1586 if (local->hw_reset_tries > 10) {
1587 printk(KERN_WARNING "%s: too many reset tries, skipping\n",
1588 dev->name);
1589 return;
1590 }
1591
1592 printk(KERN_WARNING "%s: %s: resetting card\n", dev_info, dev->name);
1593 hfa384x_disable_interrupts(dev);
1594 local->hw_resetting = 1;
1595 if (local->func->cor_sreset) {
1596
1597
1598
1599
1600
1601
1602 disable_irq(dev->irq);
1603 local->func->cor_sreset(local);
1604 enable_irq(dev->irq);
1605 }
1606 prism2_hw_shutdown(dev, 1);
1607 prism2_hw_config(dev, 0);
1608 local->hw_resetting = 0;
1609
1610#ifdef PRISM2_DOWNLOAD_SUPPORT
1611 if (local->dl_pri) {
1612 printk(KERN_DEBUG "%s: persistent download of primary "
1613 "firmware\n", dev->name);
1614 if (prism2_download_genesis(local, local->dl_pri) < 0)
1615 printk(KERN_WARNING "%s: download (PRI) failed\n",
1616 dev->name);
1617 }
1618
1619 if (local->dl_sec) {
1620 printk(KERN_DEBUG "%s: persistent download of secondary "
1621 "firmware\n", dev->name);
1622 if (prism2_download_volatile(local, local->dl_sec) < 0)
1623 printk(KERN_WARNING "%s: download (SEC) failed\n",
1624 dev->name);
1625 }
1626#endif
1627
1628
1629}
1630
1631
1632static void prism2_schedule_reset(local_info_t *local)
1633{
1634 schedule_work(&local->reset_queue);
1635}
1636
1637
1638
1639
1640static void handle_reset_queue(struct work_struct *work)
1641{
1642 local_info_t *local = container_of(work, local_info_t, reset_queue);
1643
1644 printk(KERN_DEBUG "%s: scheduled card reset\n", local->dev->name);
1645 prism2_hw_reset(local->dev);
1646
1647 if (netif_queue_stopped(local->dev)) {
1648 int i;
1649
1650 for (i = 0; i < PRISM2_TXFID_COUNT; i++)
1651 if (local->intransmitfid[i] == PRISM2_TXFID_EMPTY) {
1652 PDEBUG(DEBUG_EXTRA, "prism2_tx_timeout: "
1653 "wake up queue\n");
1654 netif_wake_queue(local->dev);
1655 break;
1656 }
1657 }
1658}
1659
1660
1661static int prism2_get_txfid_idx(local_info_t *local)
1662{
1663 int idx, end;
1664 unsigned long flags;
1665
1666 spin_lock_irqsave(&local->txfidlock, flags);
1667 end = idx = local->next_txfid;
1668 do {
1669 if (local->intransmitfid[idx] == PRISM2_TXFID_EMPTY) {
1670 local->intransmitfid[idx] = PRISM2_TXFID_RESERVED;
1671 spin_unlock_irqrestore(&local->txfidlock, flags);
1672 return idx;
1673 }
1674 idx++;
1675 if (idx >= PRISM2_TXFID_COUNT)
1676 idx = 0;
1677 } while (idx != end);
1678 spin_unlock_irqrestore(&local->txfidlock, flags);
1679
1680 PDEBUG(DEBUG_EXTRA2, "prism2_get_txfid_idx: no room in txfid buf: "
1681 "packet dropped\n");
1682 local->dev->stats.tx_dropped++;
1683
1684 return -1;
1685}
1686
1687
1688
1689static void prism2_transmit_cb(struct net_device *dev, long context,
1690 u16 resp0, u16 res)
1691{
1692 struct hostap_interface *iface;
1693 local_info_t *local;
1694 int idx = (int) context;
1695
1696 iface = netdev_priv(dev);
1697 local = iface->local;
1698
1699 if (res) {
1700 printk(KERN_DEBUG "%s: prism2_transmit_cb - res=0x%02x\n",
1701 dev->name, res);
1702 return;
1703 }
1704
1705 if (idx < 0 || idx >= PRISM2_TXFID_COUNT) {
1706 printk(KERN_DEBUG "%s: prism2_transmit_cb called with invalid "
1707 "idx=%d\n", dev->name, idx);
1708 return;
1709 }
1710
1711 if (!test_and_clear_bit(HOSTAP_BITS_TRANSMIT, &local->bits)) {
1712 printk(KERN_DEBUG "%s: driver bug: prism2_transmit_cb called "
1713 "with no pending transmit\n", dev->name);
1714 }
1715
1716 if (netif_queue_stopped(dev)) {
1717
1718
1719 netif_wake_queue(dev);
1720 }
1721
1722 spin_lock(&local->txfidlock);
1723
1724
1725
1726 local->intransmitfid[idx] = resp0;
1727
1728 PDEBUG(DEBUG_FID, "%s: prism2_transmit_cb: txfid[%d]=0x%04x, "
1729 "resp0=0x%04x, transmit_txfid=0x%04x\n",
1730 dev->name, idx, local->txfid[idx],
1731 resp0, local->intransmitfid[local->next_txfid]);
1732
1733 idx++;
1734 if (idx >= PRISM2_TXFID_COUNT)
1735 idx = 0;
1736 local->next_txfid = idx;
1737
1738
1739 do {
1740 if (local->intransmitfid[idx] == PRISM2_TXFID_EMPTY) {
1741 spin_unlock(&local->txfidlock);
1742 return;
1743 }
1744 idx++;
1745 if (idx >= PRISM2_TXFID_COUNT)
1746 idx = 0;
1747 } while (idx != local->next_txfid);
1748 spin_unlock(&local->txfidlock);
1749
1750
1751 netif_stop_queue(dev);
1752}
1753
1754
1755
1756
1757static int prism2_transmit(struct net_device *dev, int idx)
1758{
1759 struct hostap_interface *iface;
1760 local_info_t *local;
1761 int res;
1762
1763 iface = netdev_priv(dev);
1764 local = iface->local;
1765
1766
1767
1768
1769
1770 if (test_and_set_bit(HOSTAP_BITS_TRANSMIT, &local->bits)) {
1771 printk(KERN_DEBUG "%s: driver bug - prism2_transmit() called "
1772 "when previous TX was pending\n", dev->name);
1773 return -1;
1774 }
1775
1776
1777 netif_stop_queue(dev);
1778
1779
1780 res = hfa384x_cmd_callback(
1781 dev,
1782 HFA384X_CMDCODE_TRANSMIT | HFA384X_CMD_TX_RECLAIM,
1783 local->txfid[idx],
1784 prism2_transmit_cb, (long) idx);
1785
1786 if (res) {
1787 printk(KERN_DEBUG "%s: prism2_transmit: CMDCODE_TRANSMIT "
1788 "failed (res=%d)\n", dev->name, res);
1789 dev->stats.tx_dropped++;
1790 netif_wake_queue(dev);
1791 return -1;
1792 }
1793 netif_trans_update(dev);
1794
1795
1796
1797
1798
1799 return 0;
1800}
1801
1802
1803
1804
1805
1806static int prism2_tx_80211(struct sk_buff *skb, struct net_device *dev)
1807{
1808 struct hostap_interface *iface;
1809 local_info_t *local;
1810 struct hfa384x_tx_frame txdesc;
1811 struct hostap_skb_tx_data *meta;
1812 int hdr_len, data_len, idx, res, ret = -1;
1813 u16 tx_control, fc;
1814
1815 iface = netdev_priv(dev);
1816 local = iface->local;
1817
1818 meta = (struct hostap_skb_tx_data *) skb->cb;
1819
1820 prism2_callback(local, PRISM2_CALLBACK_TX_START);
1821
1822 if ((local->func->card_present && !local->func->card_present(local)) ||
1823 !local->hw_ready || local->hw_downloading || local->pri_only) {
1824 if (net_ratelimit()) {
1825 printk(KERN_DEBUG "%s: prism2_tx_80211: hw not ready -"
1826 " skipping\n", dev->name);
1827 }
1828 goto fail;
1829 }
1830
1831 memset(&txdesc, 0, sizeof(txdesc));
1832
1833
1834 hdr_len = 24;
1835 skb_copy_from_linear_data(skb, &txdesc.frame_control, hdr_len);
1836 fc = le16_to_cpu(txdesc.frame_control);
1837 if (ieee80211_is_data(txdesc.frame_control) &&
1838 ieee80211_has_a4(txdesc.frame_control) &&
1839 skb->len >= 30) {
1840
1841 skb_copy_from_linear_data_offset(skb, hdr_len, txdesc.addr4,
1842 ETH_ALEN);
1843 hdr_len += ETH_ALEN;
1844 }
1845
1846 tx_control = local->tx_control;
1847 if (meta->tx_cb_idx) {
1848 tx_control |= HFA384X_TX_CTRL_TX_OK;
1849 txdesc.sw_support = cpu_to_le32(meta->tx_cb_idx);
1850 }
1851 txdesc.tx_control = cpu_to_le16(tx_control);
1852 txdesc.tx_rate = meta->rate;
1853
1854 data_len = skb->len - hdr_len;
1855 txdesc.data_len = cpu_to_le16(data_len);
1856 txdesc.len = cpu_to_be16(data_len);
1857
1858 idx = prism2_get_txfid_idx(local);
1859 if (idx < 0)
1860 goto fail;
1861
1862 if (local->frame_dump & PRISM2_DUMP_TX_HDR)
1863 hostap_dump_tx_header(dev->name, &txdesc);
1864
1865 spin_lock(&local->baplock);
1866 res = hfa384x_setup_bap(dev, BAP0, local->txfid[idx], 0);
1867
1868 if (!res)
1869 res = hfa384x_to_bap(dev, BAP0, &txdesc, sizeof(txdesc));
1870 if (!res)
1871 res = hfa384x_to_bap(dev, BAP0, skb->data + hdr_len,
1872 skb->len - hdr_len);
1873 spin_unlock(&local->baplock);
1874
1875 if (!res)
1876 res = prism2_transmit(dev, idx);
1877 if (res) {
1878 printk(KERN_DEBUG "%s: prism2_tx_80211 - to BAP0 failed\n",
1879 dev->name);
1880 local->intransmitfid[idx] = PRISM2_TXFID_EMPTY;
1881 schedule_work(&local->reset_queue);
1882 goto fail;
1883 }
1884
1885 ret = 0;
1886
1887fail:
1888 prism2_callback(local, PRISM2_CALLBACK_TX_END);
1889 return ret;
1890}
1891
1892
1893
1894
1895
1896
1897
1898#define EXTRA_FID_READ_TESTS
1899
1900static u16 prism2_read_fid_reg(struct net_device *dev, u16 reg)
1901{
1902#ifdef EXTRA_FID_READ_TESTS
1903 u16 val, val2, val3;
1904 int i;
1905
1906 for (i = 0; i < 10; i++) {
1907 val = HFA384X_INW(reg);
1908 val2 = HFA384X_INW(reg);
1909 val3 = HFA384X_INW(reg);
1910
1911 if (val == val2 && val == val3)
1912 return val;
1913
1914 printk(KERN_DEBUG "%s: detected fid change (try=%d, reg=%04x):"
1915 " %04x %04x %04x\n",
1916 dev->name, i, reg, val, val2, val3);
1917 if ((val == val2 || val == val3) && val != 0)
1918 return val;
1919 if (val2 == val3 && val2 != 0)
1920 return val2;
1921 }
1922 printk(KERN_WARNING "%s: Uhhuh.. could not read good fid from reg "
1923 "%04x (%04x %04x %04x)\n", dev->name, reg, val, val2, val3);
1924 return val;
1925#else
1926 return HFA384X_INW(reg);
1927#endif
1928}
1929
1930
1931
1932static void prism2_rx(local_info_t *local)
1933{
1934 struct net_device *dev = local->dev;
1935 int res, rx_pending = 0;
1936 u16 len, hdr_len, rxfid, status, macport;
1937 struct hfa384x_rx_frame rxdesc;
1938 struct sk_buff *skb = NULL;
1939
1940 prism2_callback(local, PRISM2_CALLBACK_RX_START);
1941
1942 rxfid = prism2_read_fid_reg(dev, HFA384X_RXFID_OFF);
1943#ifndef final_version
1944 if (rxfid == 0) {
1945 rxfid = HFA384X_INW(HFA384X_RXFID_OFF);
1946 printk(KERN_DEBUG "prism2_rx: rxfid=0 (next 0x%04x)\n",
1947 rxfid);
1948 if (rxfid == 0) {
1949 schedule_work(&local->reset_queue);
1950 goto rx_dropped;
1951 }
1952
1953 }
1954#endif
1955
1956 spin_lock(&local->baplock);
1957 res = hfa384x_setup_bap(dev, BAP0, rxfid, 0);
1958 if (!res)
1959 res = hfa384x_from_bap(dev, BAP0, &rxdesc, sizeof(rxdesc));
1960
1961 if (res) {
1962 spin_unlock(&local->baplock);
1963 printk(KERN_DEBUG "%s: copy from BAP0 failed %d\n", dev->name,
1964 res);
1965 if (res == -ETIMEDOUT) {
1966 schedule_work(&local->reset_queue);
1967 }
1968 goto rx_dropped;
1969 }
1970
1971 len = le16_to_cpu(rxdesc.data_len);
1972 hdr_len = sizeof(rxdesc);
1973 status = le16_to_cpu(rxdesc.status);
1974 macport = (status >> 8) & 0x07;
1975
1976
1977
1978
1979
1980 if (len > PRISM2_DATA_MAXLEN + 8 ) {
1981 if (macport == 7 && local->iw_mode == IW_MODE_MONITOR) {
1982 if (len >= (u16) -14) {
1983 hdr_len -= 65535 - len;
1984 hdr_len--;
1985 }
1986 len = 0;
1987 } else {
1988 spin_unlock(&local->baplock);
1989 printk(KERN_DEBUG "%s: Received frame with invalid "
1990 "length 0x%04x\n", dev->name, len);
1991 hostap_dump_rx_header(dev->name, &rxdesc);
1992 goto rx_dropped;
1993 }
1994 }
1995
1996 skb = dev_alloc_skb(len + hdr_len);
1997 if (!skb) {
1998 spin_unlock(&local->baplock);
1999 printk(KERN_DEBUG "%s: RX failed to allocate skb\n",
2000 dev->name);
2001 goto rx_dropped;
2002 }
2003 skb->dev = dev;
2004 skb_put_data(skb, &rxdesc, hdr_len);
2005
2006 if (len > 0)
2007 res = hfa384x_from_bap(dev, BAP0, skb_put(skb, len), len);
2008 spin_unlock(&local->baplock);
2009 if (res) {
2010 printk(KERN_DEBUG "%s: RX failed to read "
2011 "frame data\n", dev->name);
2012 goto rx_dropped;
2013 }
2014
2015 skb_queue_tail(&local->rx_list, skb);
2016 tasklet_schedule(&local->rx_tasklet);
2017
2018 rx_exit:
2019 prism2_callback(local, PRISM2_CALLBACK_RX_END);
2020 if (!rx_pending) {
2021 HFA384X_OUTW(HFA384X_EV_RX, HFA384X_EVACK_OFF);
2022 }
2023
2024 return;
2025
2026 rx_dropped:
2027 dev->stats.rx_dropped++;
2028 if (skb)
2029 dev_kfree_skb(skb);
2030 goto rx_exit;
2031}
2032
2033
2034
2035static void hostap_rx_skb(local_info_t *local, struct sk_buff *skb)
2036{
2037 struct hfa384x_rx_frame *rxdesc;
2038 struct net_device *dev = skb->dev;
2039 struct hostap_80211_rx_status stats;
2040 int hdrlen, rx_hdrlen;
2041
2042 rx_hdrlen = sizeof(*rxdesc);
2043 if (skb->len < sizeof(*rxdesc)) {
2044
2045 if (local->iw_mode == IW_MODE_MONITOR &&
2046 skb->len >= sizeof(*rxdesc) - 30) {
2047 rx_hdrlen = skb->len;
2048 } else {
2049 dev_kfree_skb(skb);
2050 return;
2051 }
2052 }
2053
2054 rxdesc = (struct hfa384x_rx_frame *) skb->data;
2055
2056 if (local->frame_dump & PRISM2_DUMP_RX_HDR &&
2057 skb->len >= sizeof(*rxdesc))
2058 hostap_dump_rx_header(dev->name, rxdesc);
2059
2060 if (le16_to_cpu(rxdesc->status) & HFA384X_RX_STATUS_FCSERR &&
2061 (!local->monitor_allow_fcserr ||
2062 local->iw_mode != IW_MODE_MONITOR))
2063 goto drop;
2064
2065 if (skb->len > PRISM2_DATA_MAXLEN) {
2066 printk(KERN_DEBUG "%s: RX: len(%d) > MAX(%d)\n",
2067 dev->name, skb->len, PRISM2_DATA_MAXLEN);
2068 goto drop;
2069 }
2070
2071 stats.mac_time = le32_to_cpu(rxdesc->time);
2072 stats.signal = rxdesc->signal - local->rssi_to_dBm;
2073 stats.noise = rxdesc->silence - local->rssi_to_dBm;
2074 stats.rate = rxdesc->rate;
2075
2076
2077 hdrlen = hostap_80211_get_hdrlen(rxdesc->frame_control);
2078 if (hdrlen > rx_hdrlen)
2079 hdrlen = rx_hdrlen;
2080
2081 memmove(skb_pull(skb, rx_hdrlen - hdrlen),
2082 &rxdesc->frame_control, hdrlen);
2083
2084 hostap_80211_rx(dev, skb, &stats);
2085 return;
2086
2087 drop:
2088 dev_kfree_skb(skb);
2089}
2090
2091
2092
2093static void hostap_rx_tasklet(unsigned long data)
2094{
2095 local_info_t *local = (local_info_t *) data;
2096 struct sk_buff *skb;
2097
2098 while ((skb = skb_dequeue(&local->rx_list)) != NULL)
2099 hostap_rx_skb(local, skb);
2100}
2101
2102
2103
2104static void prism2_alloc_ev(struct net_device *dev)
2105{
2106 struct hostap_interface *iface;
2107 local_info_t *local;
2108 int idx;
2109 u16 fid;
2110
2111 iface = netdev_priv(dev);
2112 local = iface->local;
2113
2114 fid = prism2_read_fid_reg(dev, HFA384X_ALLOCFID_OFF);
2115
2116 PDEBUG(DEBUG_FID, "FID: interrupt: ALLOC - fid=0x%04x\n", fid);
2117
2118 spin_lock(&local->txfidlock);
2119 idx = local->next_alloc;
2120
2121 do {
2122 if (local->txfid[idx] == fid) {
2123 PDEBUG(DEBUG_FID, "FID: found matching txfid[%d]\n",
2124 idx);
2125
2126#ifndef final_version
2127 if (local->intransmitfid[idx] == PRISM2_TXFID_EMPTY)
2128 printk("Already released txfid found at idx "
2129 "%d\n", idx);
2130 if (local->intransmitfid[idx] == PRISM2_TXFID_RESERVED)
2131 printk("Already reserved txfid found at idx "
2132 "%d\n", idx);
2133#endif
2134 local->intransmitfid[idx] = PRISM2_TXFID_EMPTY;
2135 idx++;
2136 local->next_alloc = idx >= PRISM2_TXFID_COUNT ? 0 :
2137 idx;
2138
2139 if (!test_bit(HOSTAP_BITS_TRANSMIT, &local->bits) &&
2140 netif_queue_stopped(dev))
2141 netif_wake_queue(dev);
2142
2143 spin_unlock(&local->txfidlock);
2144 return;
2145 }
2146
2147 idx++;
2148 if (idx >= PRISM2_TXFID_COUNT)
2149 idx = 0;
2150 } while (idx != local->next_alloc);
2151
2152 printk(KERN_WARNING "%s: could not find matching txfid (0x%04x, new "
2153 "read 0x%04x) for alloc event\n", dev->name, fid,
2154 HFA384X_INW(HFA384X_ALLOCFID_OFF));
2155 printk(KERN_DEBUG "TXFIDs:");
2156 for (idx = 0; idx < PRISM2_TXFID_COUNT; idx++)
2157 printk(" %04x[%04x]", local->txfid[idx],
2158 local->intransmitfid[idx]);
2159 printk("\n");
2160 spin_unlock(&local->txfidlock);
2161
2162
2163
2164
2165
2166}
2167
2168
2169
2170static void hostap_tx_callback(local_info_t *local,
2171 struct hfa384x_tx_frame *txdesc, int ok,
2172 char *payload)
2173{
2174 u16 sw_support, hdrlen, len;
2175 struct sk_buff *skb;
2176 struct hostap_tx_callback_info *cb;
2177
2178
2179 if (!ether_addr_equal(txdesc->addr2, local->dev->dev_addr)) {
2180 printk(KERN_DEBUG "%s: TX callback - foreign frame\n",
2181 local->dev->name);
2182 return;
2183 }
2184
2185 sw_support = le32_to_cpu(txdesc->sw_support);
2186
2187 spin_lock(&local->lock);
2188 cb = local->tx_callback;
2189 while (cb != NULL && cb->idx != sw_support)
2190 cb = cb->next;
2191 spin_unlock(&local->lock);
2192
2193 if (cb == NULL) {
2194 printk(KERN_DEBUG "%s: could not find TX callback (idx %d)\n",
2195 local->dev->name, sw_support);
2196 return;
2197 }
2198
2199 hdrlen = hostap_80211_get_hdrlen(txdesc->frame_control);
2200 len = le16_to_cpu(txdesc->data_len);
2201 skb = dev_alloc_skb(hdrlen + len);
2202 if (skb == NULL) {
2203 printk(KERN_DEBUG "%s: hostap_tx_callback failed to allocate "
2204 "skb\n", local->dev->name);
2205 return;
2206 }
2207
2208 skb_put_data(skb, (void *)&txdesc->frame_control, hdrlen);
2209 if (payload)
2210 skb_put_data(skb, payload, len);
2211
2212 skb->dev = local->dev;
2213 skb_reset_mac_header(skb);
2214
2215 cb->func(skb, ok, cb->data);
2216}
2217
2218
2219
2220static int hostap_tx_compl_read(local_info_t *local, int error,
2221 struct hfa384x_tx_frame *txdesc,
2222 char **payload)
2223{
2224 u16 fid, len;
2225 int res, ret = 0;
2226 struct net_device *dev = local->dev;
2227
2228 fid = prism2_read_fid_reg(dev, HFA384X_TXCOMPLFID_OFF);
2229
2230 PDEBUG(DEBUG_FID, "interrupt: TX (err=%d) - fid=0x%04x\n", fid, error);
2231
2232 spin_lock(&local->baplock);
2233 res = hfa384x_setup_bap(dev, BAP0, fid, 0);
2234 if (!res)
2235 res = hfa384x_from_bap(dev, BAP0, txdesc, sizeof(*txdesc));
2236 if (res) {
2237 PDEBUG(DEBUG_EXTRA, "%s: TX (err=%d) - fid=0x%04x - could not "
2238 "read txdesc\n", dev->name, error, fid);
2239 if (res == -ETIMEDOUT) {
2240 schedule_work(&local->reset_queue);
2241 }
2242 ret = -1;
2243 goto fail;
2244 }
2245 if (txdesc->sw_support) {
2246 len = le16_to_cpu(txdesc->data_len);
2247 if (len < PRISM2_DATA_MAXLEN) {
2248 *payload = kmalloc(len, GFP_ATOMIC);
2249 if (*payload == NULL ||
2250 hfa384x_from_bap(dev, BAP0, *payload, len)) {
2251 PDEBUG(DEBUG_EXTRA, "%s: could not read TX "
2252 "frame payload\n", dev->name);
2253 kfree(*payload);
2254 *payload = NULL;
2255 ret = -1;
2256 goto fail;
2257 }
2258 }
2259 }
2260
2261 fail:
2262 spin_unlock(&local->baplock);
2263
2264 return ret;
2265}
2266
2267
2268
2269static void prism2_tx_ev(local_info_t *local)
2270{
2271 struct net_device *dev = local->dev;
2272 char *payload = NULL;
2273 struct hfa384x_tx_frame txdesc;
2274
2275 if (hostap_tx_compl_read(local, 0, &txdesc, &payload))
2276 goto fail;
2277
2278 if (local->frame_dump & PRISM2_DUMP_TX_HDR) {
2279 PDEBUG(DEBUG_EXTRA, "%s: TX - status=0x%04x "
2280 "retry_count=%d tx_rate=%d seq_ctrl=%d "
2281 "duration_id=%d\n",
2282 dev->name, le16_to_cpu(txdesc.status),
2283 txdesc.retry_count, txdesc.tx_rate,
2284 le16_to_cpu(txdesc.seq_ctrl),
2285 le16_to_cpu(txdesc.duration_id));
2286 }
2287
2288 if (txdesc.sw_support)
2289 hostap_tx_callback(local, &txdesc, 1, payload);
2290 kfree(payload);
2291
2292 fail:
2293 HFA384X_OUTW(HFA384X_EV_TX, HFA384X_EVACK_OFF);
2294}
2295
2296
2297
2298static void hostap_sta_tx_exc_tasklet(unsigned long data)
2299{
2300 local_info_t *local = (local_info_t *) data;
2301 struct sk_buff *skb;
2302
2303 while ((skb = skb_dequeue(&local->sta_tx_exc_list)) != NULL) {
2304 struct hfa384x_tx_frame *txdesc =
2305 (struct hfa384x_tx_frame *) skb->data;
2306
2307 if (skb->len >= sizeof(*txdesc)) {
2308
2309
2310 int hdrlen = hostap_80211_get_hdrlen(txdesc->frame_control);
2311 memmove(skb_pull(skb, sizeof(*txdesc) - hdrlen),
2312 &txdesc->frame_control, hdrlen);
2313
2314 hostap_handle_sta_tx_exc(local, skb);
2315 }
2316 dev_kfree_skb(skb);
2317 }
2318}
2319
2320
2321
2322static void prism2_txexc(local_info_t *local)
2323{
2324 struct net_device *dev = local->dev;
2325 u16 status, fc;
2326 int show_dump, res;
2327 char *payload = NULL;
2328 struct hfa384x_tx_frame txdesc;
2329
2330 show_dump = local->frame_dump & PRISM2_DUMP_TXEXC_HDR;
2331 dev->stats.tx_errors++;
2332
2333 res = hostap_tx_compl_read(local, 1, &txdesc, &payload);
2334 HFA384X_OUTW(HFA384X_EV_TXEXC, HFA384X_EVACK_OFF);
2335 if (res)
2336 return;
2337
2338 status = le16_to_cpu(txdesc.status);
2339
2340
2341
2342
2343
2344 if (status & (HFA384X_TX_STATUS_RETRYERR | HFA384X_TX_STATUS_AGEDERR))
2345 {
2346 union iwreq_data wrqu;
2347
2348
2349 memcpy(wrqu.addr.sa_data, txdesc.addr1, ETH_ALEN);
2350 wrqu.addr.sa_family = ARPHRD_ETHER;
2351 wireless_send_event(dev, IWEVTXDROP, &wrqu, NULL);
2352 } else
2353 show_dump = 1;
2354
2355 if (local->iw_mode == IW_MODE_MASTER ||
2356 local->iw_mode == IW_MODE_REPEAT ||
2357 local->wds_type & HOSTAP_WDS_AP_CLIENT) {
2358 struct sk_buff *skb;
2359 skb = dev_alloc_skb(sizeof(txdesc));
2360 if (skb) {
2361 skb_put_data(skb, &txdesc, sizeof(txdesc));
2362 skb_queue_tail(&local->sta_tx_exc_list, skb);
2363 tasklet_schedule(&local->sta_tx_exc_tasklet);
2364 }
2365 }
2366
2367 if (txdesc.sw_support)
2368 hostap_tx_callback(local, &txdesc, 0, payload);
2369 kfree(payload);
2370
2371 if (!show_dump)
2372 return;
2373
2374 PDEBUG(DEBUG_EXTRA, "%s: TXEXC - status=0x%04x (%s%s%s%s)"
2375 " tx_control=%04x\n",
2376 dev->name, status,
2377 status & HFA384X_TX_STATUS_RETRYERR ? "[RetryErr]" : "",
2378 status & HFA384X_TX_STATUS_AGEDERR ? "[AgedErr]" : "",
2379 status & HFA384X_TX_STATUS_DISCON ? "[Discon]" : "",
2380 status & HFA384X_TX_STATUS_FORMERR ? "[FormErr]" : "",
2381 le16_to_cpu(txdesc.tx_control));
2382
2383 fc = le16_to_cpu(txdesc.frame_control);
2384 PDEBUG(DEBUG_EXTRA, " retry_count=%d tx_rate=%d fc=0x%04x "
2385 "(%s%s%s::%d%s%s)\n",
2386 txdesc.retry_count, txdesc.tx_rate, fc,
2387 ieee80211_is_mgmt(txdesc.frame_control) ? "Mgmt" : "",
2388 ieee80211_is_ctl(txdesc.frame_control) ? "Ctrl" : "",
2389 ieee80211_is_data(txdesc.frame_control) ? "Data" : "",
2390 (fc & IEEE80211_FCTL_STYPE) >> 4,
2391 ieee80211_has_tods(txdesc.frame_control) ? " ToDS" : "",
2392 ieee80211_has_fromds(txdesc.frame_control) ? " FromDS" : "");
2393 PDEBUG(DEBUG_EXTRA, " A1=%pM A2=%pM A3=%pM A4=%pM\n",
2394 txdesc.addr1, txdesc.addr2,
2395 txdesc.addr3, txdesc.addr4);
2396}
2397
2398
2399
2400static void hostap_info_tasklet(unsigned long data)
2401{
2402 local_info_t *local = (local_info_t *) data;
2403 struct sk_buff *skb;
2404
2405 while ((skb = skb_dequeue(&local->info_list)) != NULL) {
2406 hostap_info_process(local, skb);
2407 dev_kfree_skb(skb);
2408 }
2409}
2410
2411
2412
2413static void prism2_info(local_info_t *local)
2414{
2415 struct net_device *dev = local->dev;
2416 u16 fid;
2417 int res, left;
2418 struct hfa384x_info_frame info;
2419 struct sk_buff *skb;
2420
2421 fid = HFA384X_INW(HFA384X_INFOFID_OFF);
2422
2423 spin_lock(&local->baplock);
2424 res = hfa384x_setup_bap(dev, BAP0, fid, 0);
2425 if (!res)
2426 res = hfa384x_from_bap(dev, BAP0, &info, sizeof(info));
2427 if (res) {
2428 spin_unlock(&local->baplock);
2429 printk(KERN_DEBUG "Could not get info frame (fid=0x%04x)\n",
2430 fid);
2431 if (res == -ETIMEDOUT) {
2432 schedule_work(&local->reset_queue);
2433 }
2434 goto out;
2435 }
2436
2437 left = (le16_to_cpu(info.len) - 1) * 2;
2438
2439 if (info.len & cpu_to_le16(0x8000) || info.len == 0 || left > 2060) {
2440
2441
2442
2443 spin_unlock(&local->baplock);
2444 printk(KERN_DEBUG "%s: Received info frame with invalid "
2445 "length 0x%04x (type 0x%04x)\n", dev->name,
2446 le16_to_cpu(info.len), le16_to_cpu(info.type));
2447 goto out;
2448 }
2449
2450 skb = dev_alloc_skb(sizeof(info) + left);
2451 if (skb == NULL) {
2452 spin_unlock(&local->baplock);
2453 printk(KERN_DEBUG "%s: Could not allocate skb for info "
2454 "frame\n", dev->name);
2455 goto out;
2456 }
2457
2458 skb_put_data(skb, &info, sizeof(info));
2459 if (left > 0 && hfa384x_from_bap(dev, BAP0, skb_put(skb, left), left))
2460 {
2461 spin_unlock(&local->baplock);
2462 printk(KERN_WARNING "%s: Info frame read failed (fid=0x%04x, "
2463 "len=0x%04x, type=0x%04x\n", dev->name, fid,
2464 le16_to_cpu(info.len), le16_to_cpu(info.type));
2465 dev_kfree_skb(skb);
2466 goto out;
2467 }
2468 spin_unlock(&local->baplock);
2469
2470 skb_queue_tail(&local->info_list, skb);
2471 tasklet_schedule(&local->info_tasklet);
2472
2473 out:
2474 HFA384X_OUTW(HFA384X_EV_INFO, HFA384X_EVACK_OFF);
2475}
2476
2477
2478
2479static void hostap_bap_tasklet(unsigned long data)
2480{
2481 local_info_t *local = (local_info_t *) data;
2482 struct net_device *dev = local->dev;
2483 u16 ev;
2484 int frames = 30;
2485
2486 if (local->func->card_present && !local->func->card_present(local))
2487 return;
2488
2489 set_bit(HOSTAP_BITS_BAP_TASKLET, &local->bits);
2490
2491
2492
2493 while (frames-- > 0) {
2494 ev = HFA384X_INW(HFA384X_EVSTAT_OFF);
2495 if (ev == 0xffff || !(ev & HFA384X_BAP0_EVENTS))
2496 break;
2497 if (ev & HFA384X_EV_RX)
2498 prism2_rx(local);
2499 if (ev & HFA384X_EV_INFO)
2500 prism2_info(local);
2501 if (ev & HFA384X_EV_TX)
2502 prism2_tx_ev(local);
2503 if (ev & HFA384X_EV_TXEXC)
2504 prism2_txexc(local);
2505 }
2506
2507 set_bit(HOSTAP_BITS_BAP_TASKLET2, &local->bits);
2508 clear_bit(HOSTAP_BITS_BAP_TASKLET, &local->bits);
2509
2510
2511 hfa384x_events_all(dev);
2512 clear_bit(HOSTAP_BITS_BAP_TASKLET2, &local->bits);
2513}
2514
2515
2516
2517static void prism2_infdrop(struct net_device *dev)
2518{
2519 static unsigned long last_inquire = 0;
2520
2521 PDEBUG(DEBUG_EXTRA, "%s: INFDROP event\n", dev->name);
2522
2523
2524
2525
2526
2527
2528 if (!last_inquire || time_after(jiffies, last_inquire + HZ)) {
2529 hfa384x_cmd_callback(dev, HFA384X_CMDCODE_INQUIRE,
2530 HFA384X_INFO_COMMTALLIES, NULL, 0);
2531 last_inquire = jiffies;
2532 }
2533}
2534
2535
2536
2537static void prism2_ev_tick(struct net_device *dev)
2538{
2539 struct hostap_interface *iface;
2540 local_info_t *local;
2541 u16 evstat, inten;
2542 static int prev_stuck = 0;
2543
2544 iface = netdev_priv(dev);
2545 local = iface->local;
2546
2547 if (time_after(jiffies, local->last_tick_timer + 5 * HZ) &&
2548 local->last_tick_timer) {
2549 evstat = HFA384X_INW(HFA384X_EVSTAT_OFF);
2550 inten = HFA384X_INW(HFA384X_INTEN_OFF);
2551 if (!prev_stuck) {
2552 printk(KERN_INFO "%s: SW TICK stuck? "
2553 "bits=0x%lx EvStat=%04x IntEn=%04x\n",
2554 dev->name, local->bits, evstat, inten);
2555 }
2556 local->sw_tick_stuck++;
2557 if ((evstat & HFA384X_BAP0_EVENTS) &&
2558 (inten & HFA384X_BAP0_EVENTS)) {
2559 printk(KERN_INFO "%s: trying to recover from IRQ "
2560 "hang\n", dev->name);
2561 hfa384x_events_no_bap0(dev);
2562 }
2563 prev_stuck = 1;
2564 } else
2565 prev_stuck = 0;
2566}
2567
2568
2569
2570static void prism2_check_magic(local_info_t *local)
2571{
2572
2573
2574
2575
2576
2577
2578#ifndef PRISM2_PCI
2579#ifndef final_version
2580 static unsigned long last_magic_err = 0;
2581 struct net_device *dev = local->dev;
2582
2583 if (HFA384X_INW(HFA384X_SWSUPPORT0_OFF) != HFA384X_MAGIC) {
2584 if (!local->hw_ready)
2585 return;
2586 HFA384X_OUTW(0xffff, HFA384X_EVACK_OFF);
2587 if (time_after(jiffies, last_magic_err + 10 * HZ)) {
2588 printk("%s: Interrupt, but SWSUPPORT0 does not match: "
2589 "%04X != %04X - card removed?\n", dev->name,
2590 HFA384X_INW(HFA384X_SWSUPPORT0_OFF),
2591 HFA384X_MAGIC);
2592 last_magic_err = jiffies;
2593 } else if (net_ratelimit()) {
2594 printk(KERN_DEBUG "%s: interrupt - SWSUPPORT0=%04x "
2595 "MAGIC=%04x\n", dev->name,
2596 HFA384X_INW(HFA384X_SWSUPPORT0_OFF),
2597 HFA384X_MAGIC);
2598 }
2599 if (HFA384X_INW(HFA384X_SWSUPPORT0_OFF) != 0xffff)
2600 schedule_work(&local->reset_queue);
2601 return;
2602 }
2603#endif
2604#endif
2605}
2606
2607
2608
2609static irqreturn_t prism2_interrupt(int irq, void *dev_id)
2610{
2611 struct net_device *dev = dev_id;
2612 struct hostap_interface *iface;
2613 local_info_t *local;
2614 int events = 0;
2615 u16 ev;
2616
2617 iface = netdev_priv(dev);
2618 local = iface->local;
2619
2620
2621 spin_lock(&local->irq_init_lock);
2622 if (!dev->base_addr) {
2623 if (net_ratelimit()) {
2624 printk(KERN_DEBUG "%s: Interrupt, but dev not configured\n",
2625 dev->name);
2626 }
2627 spin_unlock(&local->irq_init_lock);
2628 return IRQ_HANDLED;
2629 }
2630 spin_unlock(&local->irq_init_lock);
2631
2632 prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INTERRUPT, 0, 0);
2633
2634 if (local->func->card_present && !local->func->card_present(local)) {
2635 if (net_ratelimit()) {
2636 printk(KERN_DEBUG "%s: Interrupt, but dev not OK\n",
2637 dev->name);
2638 }
2639 return IRQ_HANDLED;
2640 }
2641
2642 prism2_check_magic(local);
2643
2644 for (;;) {
2645 ev = HFA384X_INW(HFA384X_EVSTAT_OFF);
2646 if (ev == 0xffff) {
2647 if (local->shutdown)
2648 return IRQ_HANDLED;
2649 HFA384X_OUTW(0xffff, HFA384X_EVACK_OFF);
2650 printk(KERN_DEBUG "%s: prism2_interrupt: ev=0xffff\n",
2651 dev->name);
2652 return IRQ_HANDLED;
2653 }
2654
2655 ev &= HFA384X_INW(HFA384X_INTEN_OFF);
2656 if (ev == 0)
2657 break;
2658
2659 if (ev & HFA384X_EV_CMD) {
2660 prism2_cmd_ev(dev);
2661 }
2662
2663
2664
2665
2666
2667 if (!local->hw_ready || local->hw_resetting ||
2668 !local->dev_enabled) {
2669 ev = HFA384X_INW(HFA384X_EVSTAT_OFF);
2670 if (ev & HFA384X_EV_CMD)
2671 goto next_event;
2672 if ((ev & HFA384X_EVENT_MASK) == 0)
2673 return IRQ_HANDLED;
2674 if (local->dev_enabled && (ev & ~HFA384X_EV_TICK) &&
2675 net_ratelimit()) {
2676 printk(KERN_DEBUG "%s: prism2_interrupt: hw "
2677 "not ready; skipping events 0x%04x "
2678 "(IntEn=0x%04x)%s%s%s\n",
2679 dev->name, ev,
2680 HFA384X_INW(HFA384X_INTEN_OFF),
2681 !local->hw_ready ? " (!hw_ready)" : "",
2682 local->hw_resetting ?
2683 " (hw_resetting)" : "",
2684 !local->dev_enabled ?
2685 " (!dev_enabled)" : "");
2686 }
2687 HFA384X_OUTW(ev, HFA384X_EVACK_OFF);
2688 return IRQ_HANDLED;
2689 }
2690
2691 if (ev & HFA384X_EV_TICK) {
2692 prism2_ev_tick(dev);
2693 HFA384X_OUTW(HFA384X_EV_TICK, HFA384X_EVACK_OFF);
2694 }
2695
2696 if (ev & HFA384X_EV_ALLOC) {
2697 prism2_alloc_ev(dev);
2698 HFA384X_OUTW(HFA384X_EV_ALLOC, HFA384X_EVACK_OFF);
2699 }
2700
2701
2702
2703
2704 if (ev & HFA384X_BAP0_EVENTS) {
2705 hfa384x_events_no_bap0(dev);
2706 tasklet_schedule(&local->bap_tasklet);
2707 }
2708
2709#ifndef final_version
2710 if (ev & HFA384X_EV_WTERR) {
2711 PDEBUG(DEBUG_EXTRA, "%s: WTERR event\n", dev->name);
2712 HFA384X_OUTW(HFA384X_EV_WTERR, HFA384X_EVACK_OFF);
2713 }
2714#endif
2715
2716 if (ev & HFA384X_EV_INFDROP) {
2717 prism2_infdrop(dev);
2718 HFA384X_OUTW(HFA384X_EV_INFDROP, HFA384X_EVACK_OFF);
2719 }
2720
2721 next_event:
2722 events++;
2723 if (events >= PRISM2_MAX_INTERRUPT_EVENTS) {
2724 PDEBUG(DEBUG_EXTRA, "prism2_interrupt: >%d events "
2725 "(EvStat=0x%04x)\n",
2726 PRISM2_MAX_INTERRUPT_EVENTS,
2727 HFA384X_INW(HFA384X_EVSTAT_OFF));
2728 break;
2729 }
2730 }
2731 prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INTERRUPT, 0, 1);
2732 return IRQ_RETVAL(events);
2733}
2734
2735
2736static void prism2_check_sta_fw_version(local_info_t *local)
2737{
2738 struct hfa384x_comp_ident comp;
2739 int id, variant, major, minor;
2740
2741 if (hfa384x_get_rid(local->dev, HFA384X_RID_STAID,
2742 &comp, sizeof(comp), 1) < 0)
2743 return;
2744
2745 local->fw_ap = 0;
2746 id = le16_to_cpu(comp.id);
2747 if (id != HFA384X_COMP_ID_STA) {
2748 if (id == HFA384X_COMP_ID_FW_AP)
2749 local->fw_ap = 1;
2750 return;
2751 }
2752
2753 major = __le16_to_cpu(comp.major);
2754 minor = __le16_to_cpu(comp.minor);
2755 variant = __le16_to_cpu(comp.variant);
2756 local->sta_fw_ver = PRISM2_FW_VER(major, minor, variant);
2757
2758
2759
2760
2761
2762
2763
2764 local->fw_encrypt_ok = local->sta_fw_ver >= PRISM2_FW_VER(1,4,9);
2765
2766 if (local->iw_mode == IW_MODE_MASTER && !local->host_encrypt &&
2767 !local->fw_encrypt_ok) {
2768 printk(KERN_DEBUG "%s: defaulting to host-based encryption as "
2769 "a workaround for firmware bug in Host AP mode WEP\n",
2770 local->dev->name);
2771 local->host_encrypt = 1;
2772 }
2773
2774
2775
2776
2777
2778
2779
2780
2781 if (local->sta_fw_ver >= PRISM2_FW_VER(1,5,0))
2782 local->wds_type |= HOSTAP_WDS_STANDARD_FRAME;
2783 else {
2784 printk(KERN_DEBUG "%s: defaulting to bogus WDS frame as a "
2785 "workaround for firmware bug in Host AP mode WDS\n",
2786 local->dev->name);
2787 }
2788
2789 hostap_check_sta_fw_version(local->ap, local->sta_fw_ver);
2790}
2791
2792
2793static void hostap_passive_scan(struct timer_list *t)
2794{
2795 local_info_t *local = from_timer(local, t, passive_scan_timer);
2796 struct net_device *dev = local->dev;
2797 u16 chan;
2798
2799 if (local->passive_scan_interval <= 0)
2800 return;
2801
2802 if (local->passive_scan_state == PASSIVE_SCAN_LISTEN) {
2803 int max_tries = 16;
2804
2805
2806
2807
2808
2809 if (test_bit(HOSTAP_BITS_TRANSMIT, &local->bits)) {
2810 printk(KERN_DEBUG "%s: passive scan detected pending "
2811 "TX - delaying\n", dev->name);
2812 local->passive_scan_timer.expires = jiffies + HZ / 10;
2813 add_timer(&local->passive_scan_timer);
2814 return;
2815 }
2816
2817 do {
2818 local->passive_scan_channel++;
2819 if (local->passive_scan_channel > 14)
2820 local->passive_scan_channel = 1;
2821 max_tries--;
2822 } while (!(local->channel_mask &
2823 (1 << (local->passive_scan_channel - 1))) &&
2824 max_tries > 0);
2825
2826 if (max_tries == 0) {
2827 printk(KERN_INFO "%s: no allowed passive scan channels"
2828 " found\n", dev->name);
2829 return;
2830 }
2831
2832 printk(KERN_DEBUG "%s: passive scan channel %d\n",
2833 dev->name, local->passive_scan_channel);
2834 chan = local->passive_scan_channel;
2835 local->passive_scan_state = PASSIVE_SCAN_WAIT;
2836 local->passive_scan_timer.expires = jiffies + HZ / 10;
2837 } else {
2838 chan = local->channel;
2839 local->passive_scan_state = PASSIVE_SCAN_LISTEN;
2840 local->passive_scan_timer.expires = jiffies +
2841 local->passive_scan_interval * HZ;
2842 }
2843
2844 if (hfa384x_cmd_callback(dev, HFA384X_CMDCODE_TEST |
2845 (HFA384X_TEST_CHANGE_CHANNEL << 8),
2846 chan, NULL, 0))
2847 printk(KERN_ERR "%s: passive scan channel set %d "
2848 "failed\n", dev->name, chan);
2849
2850 add_timer(&local->passive_scan_timer);
2851}
2852
2853
2854
2855
2856static void handle_comms_qual_update(struct work_struct *work)
2857{
2858 local_info_t *local =
2859 container_of(work, local_info_t, comms_qual_update);
2860 prism2_update_comms_qual(local->dev);
2861}
2862
2863
2864
2865
2866
2867
2868static void hostap_tick_timer(struct timer_list *t)
2869{
2870 static unsigned long last_inquire = 0;
2871 local_info_t *local = from_timer(local, t, tick_timer);
2872 local->last_tick_timer = jiffies;
2873
2874
2875
2876 if ((!last_inquire || time_after(jiffies, last_inquire + 10 * HZ)) &&
2877 !local->hw_downloading && local->hw_ready &&
2878 !local->hw_resetting && local->dev_enabled) {
2879 hfa384x_cmd_callback(local->dev, HFA384X_CMDCODE_INQUIRE,
2880 HFA384X_INFO_COMMTALLIES, NULL, 0);
2881 last_inquire = jiffies;
2882 }
2883
2884 if ((local->last_comms_qual_update == 0 ||
2885 time_after(jiffies, local->last_comms_qual_update + 10 * HZ)) &&
2886 (local->iw_mode == IW_MODE_INFRA ||
2887 local->iw_mode == IW_MODE_ADHOC)) {
2888 schedule_work(&local->comms_qual_update);
2889 }
2890
2891 local->tick_timer.expires = jiffies + 2 * HZ;
2892 add_timer(&local->tick_timer);
2893}
2894
2895
2896#ifndef PRISM2_NO_PROCFS_DEBUG
2897static int prism2_registers_proc_show(struct seq_file *m, void *v)
2898{
2899 local_info_t *local = m->private;
2900
2901#define SHOW_REG(n) \
2902 seq_printf(m, #n "=%04x\n", hfa384x_read_reg(local->dev, HFA384X_##n##_OFF))
2903
2904 SHOW_REG(CMD);
2905 SHOW_REG(PARAM0);
2906 SHOW_REG(PARAM1);
2907 SHOW_REG(PARAM2);
2908 SHOW_REG(STATUS);
2909 SHOW_REG(RESP0);
2910 SHOW_REG(RESP1);
2911 SHOW_REG(RESP2);
2912 SHOW_REG(INFOFID);
2913 SHOW_REG(CONTROL);
2914 SHOW_REG(SELECT0);
2915 SHOW_REG(SELECT1);
2916 SHOW_REG(OFFSET0);
2917 SHOW_REG(OFFSET1);
2918 SHOW_REG(RXFID);
2919 SHOW_REG(ALLOCFID);
2920 SHOW_REG(TXCOMPLFID);
2921 SHOW_REG(SWSUPPORT0);
2922 SHOW_REG(SWSUPPORT1);
2923 SHOW_REG(SWSUPPORT2);
2924 SHOW_REG(EVSTAT);
2925 SHOW_REG(INTEN);
2926 SHOW_REG(EVACK);
2927
2928
2929
2930
2931 SHOW_REG(AUXPAGE);
2932 SHOW_REG(AUXOFFSET);
2933
2934#ifdef PRISM2_PCI
2935 SHOW_REG(PCICOR);
2936 SHOW_REG(PCIHCR);
2937 SHOW_REG(PCI_M0_ADDRH);
2938 SHOW_REG(PCI_M0_ADDRL);
2939 SHOW_REG(PCI_M0_LEN);
2940 SHOW_REG(PCI_M0_CTL);
2941 SHOW_REG(PCI_STATUS);
2942 SHOW_REG(PCI_M1_ADDRH);
2943 SHOW_REG(PCI_M1_ADDRL);
2944 SHOW_REG(PCI_M1_LEN);
2945 SHOW_REG(PCI_M1_CTL);
2946#endif
2947
2948 return 0;
2949}
2950#endif
2951
2952
2953struct set_tim_data {
2954 struct list_head list;
2955 int aid;
2956 int set;
2957};
2958
2959static int prism2_set_tim(struct net_device *dev, int aid, int set)
2960{
2961 struct list_head *ptr;
2962 struct set_tim_data *new_entry;
2963 struct hostap_interface *iface;
2964 local_info_t *local;
2965
2966 iface = netdev_priv(dev);
2967 local = iface->local;
2968
2969 new_entry = kzalloc(sizeof(*new_entry), GFP_ATOMIC);
2970 if (new_entry == NULL)
2971 return -ENOMEM;
2972
2973 new_entry->aid = aid;
2974 new_entry->set = set;
2975
2976 spin_lock_bh(&local->set_tim_lock);
2977 list_for_each(ptr, &local->set_tim_list) {
2978 struct set_tim_data *entry =
2979 list_entry(ptr, struct set_tim_data, list);
2980 if (entry->aid == aid) {
2981 PDEBUG(DEBUG_PS2, "%s: prism2_set_tim: aid=%d "
2982 "set=%d ==> %d\n",
2983 local->dev->name, aid, entry->set, set);
2984 entry->set = set;
2985 kfree(new_entry);
2986 new_entry = NULL;
2987 break;
2988 }
2989 }
2990 if (new_entry)
2991 list_add_tail(&new_entry->list, &local->set_tim_list);
2992 spin_unlock_bh(&local->set_tim_lock);
2993
2994 schedule_work(&local->set_tim_queue);
2995
2996 return 0;
2997}
2998
2999
3000static void handle_set_tim_queue(struct work_struct *work)
3001{
3002 local_info_t *local = container_of(work, local_info_t, set_tim_queue);
3003 struct set_tim_data *entry;
3004 u16 val;
3005
3006 for (;;) {
3007 entry = NULL;
3008 spin_lock_bh(&local->set_tim_lock);
3009 if (!list_empty(&local->set_tim_list)) {
3010 entry = list_entry(local->set_tim_list.next,
3011 struct set_tim_data, list);
3012 list_del(&entry->list);
3013 }
3014 spin_unlock_bh(&local->set_tim_lock);
3015 if (!entry)
3016 break;
3017
3018 PDEBUG(DEBUG_PS2, "%s: handle_set_tim_queue: aid=%d set=%d\n",
3019 local->dev->name, entry->aid, entry->set);
3020
3021 val = entry->aid;
3022 if (entry->set)
3023 val |= 0x8000;
3024 if (hostap_set_word(local->dev, HFA384X_RID_CNFTIMCTRL, val)) {
3025 printk(KERN_DEBUG "%s: set_tim failed (aid=%d "
3026 "set=%d)\n",
3027 local->dev->name, entry->aid, entry->set);
3028 }
3029
3030 kfree(entry);
3031 }
3032}
3033
3034
3035static void prism2_clear_set_tim_queue(local_info_t *local)
3036{
3037 struct list_head *ptr, *n;
3038
3039 list_for_each_safe(ptr, n, &local->set_tim_list) {
3040 struct set_tim_data *entry;
3041 entry = list_entry(ptr, struct set_tim_data, list);
3042 list_del(&entry->list);
3043 kfree(entry);
3044 }
3045}
3046
3047
3048
3049
3050
3051
3052
3053static struct lock_class_key hostap_netdev_xmit_lock_key;
3054static struct lock_class_key hostap_netdev_addr_lock_key;
3055
3056static void prism2_set_lockdep_class_one(struct net_device *dev,
3057 struct netdev_queue *txq,
3058 void *_unused)
3059{
3060 lockdep_set_class(&txq->_xmit_lock,
3061 &hostap_netdev_xmit_lock_key);
3062}
3063
3064static void prism2_set_lockdep_class(struct net_device *dev)
3065{
3066 lockdep_set_class(&dev->addr_list_lock,
3067 &hostap_netdev_addr_lock_key);
3068 netdev_for_each_tx_queue(dev, prism2_set_lockdep_class_one, NULL);
3069}
3070
3071static struct net_device *
3072prism2_init_local_data(struct prism2_helper_functions *funcs, int card_idx,
3073 struct device *sdev)
3074{
3075 struct net_device *dev;
3076 struct hostap_interface *iface;
3077 struct local_info *local;
3078 int len, i, ret;
3079
3080 if (funcs == NULL)
3081 return NULL;
3082
3083 len = strlen(dev_template);
3084 if (len >= IFNAMSIZ || strstr(dev_template, "%d") == NULL) {
3085 printk(KERN_WARNING "hostap: Invalid dev_template='%s'\n",
3086 dev_template);
3087 return NULL;
3088 }
3089
3090 len = sizeof(struct hostap_interface) +
3091 3 + sizeof(struct local_info) +
3092 3 + sizeof(struct ap_data);
3093
3094 dev = alloc_etherdev(len);
3095 if (dev == NULL)
3096 return NULL;
3097
3098 iface = netdev_priv(dev);
3099 local = (struct local_info *) ((((long) (iface + 1)) + 3) & ~3);
3100 local->ap = (struct ap_data *) ((((long) (local + 1)) + 3) & ~3);
3101 local->dev = iface->dev = dev;
3102 iface->local = local;
3103 iface->type = HOSTAP_INTERFACE_MASTER;
3104 INIT_LIST_HEAD(&local->hostap_interfaces);
3105
3106 local->hw_module = THIS_MODULE;
3107
3108#ifdef PRISM2_IO_DEBUG
3109 local->io_debug_enabled = 1;
3110#endif
3111
3112 local->func = funcs;
3113 local->func->cmd = hfa384x_cmd;
3114 local->func->read_regs = hfa384x_read_regs;
3115 local->func->get_rid = hfa384x_get_rid;
3116 local->func->set_rid = hfa384x_set_rid;
3117 local->func->hw_enable = prism2_hw_enable;
3118 local->func->hw_config = prism2_hw_config;
3119 local->func->hw_reset = prism2_hw_reset;
3120 local->func->hw_shutdown = prism2_hw_shutdown;
3121 local->func->reset_port = prism2_reset_port;
3122 local->func->schedule_reset = prism2_schedule_reset;
3123#ifdef PRISM2_DOWNLOAD_SUPPORT
3124 local->func->read_aux_fops = &prism2_download_aux_dump_proc_fops;
3125 local->func->download = prism2_download;
3126#endif
3127 local->func->tx = prism2_tx_80211;
3128 local->func->set_tim = prism2_set_tim;
3129 local->func->need_tx_headroom = 0;
3130
3131
3132
3133 local->mtu = mtu;
3134
3135 rwlock_init(&local->iface_lock);
3136 spin_lock_init(&local->txfidlock);
3137 spin_lock_init(&local->cmdlock);
3138 spin_lock_init(&local->baplock);
3139 spin_lock_init(&local->lock);
3140 spin_lock_init(&local->irq_init_lock);
3141 mutex_init(&local->rid_bap_mtx);
3142
3143 if (card_idx < 0 || card_idx >= MAX_PARM_DEVICES)
3144 card_idx = 0;
3145 local->card_idx = card_idx;
3146
3147 len = strlen(essid);
3148 memcpy(local->essid, essid,
3149 len > MAX_SSID_LEN ? MAX_SSID_LEN : len);
3150 local->essid[MAX_SSID_LEN] = '\0';
3151 i = GET_INT_PARM(iw_mode, card_idx);
3152 if ((i >= IW_MODE_ADHOC && i <= IW_MODE_REPEAT) ||
3153 i == IW_MODE_MONITOR) {
3154 local->iw_mode = i;
3155 } else {
3156 printk(KERN_WARNING "prism2: Unknown iw_mode %d; using "
3157 "IW_MODE_MASTER\n", i);
3158 local->iw_mode = IW_MODE_MASTER;
3159 }
3160 local->channel = GET_INT_PARM(channel, card_idx);
3161 local->beacon_int = GET_INT_PARM(beacon_int, card_idx);
3162 local->dtim_period = GET_INT_PARM(dtim_period, card_idx);
3163 local->wds_max_connections = 16;
3164 local->tx_control = HFA384X_TX_CTRL_FLAGS;
3165 local->manual_retry_count = -1;
3166 local->rts_threshold = 2347;
3167 local->fragm_threshold = 2346;
3168 local->rssi_to_dBm = 100;
3169
3170 local->auth_algs = PRISM2_AUTH_OPEN | PRISM2_AUTH_SHARED_KEY;
3171 local->sram_type = -1;
3172 local->scan_channel_mask = 0xffff;
3173 local->monitor_type = PRISM2_MONITOR_RADIOTAP;
3174
3175
3176 INIT_WORK(&local->reset_queue, handle_reset_queue);
3177 INIT_WORK(&local->set_multicast_list_queue,
3178 hostap_set_multicast_list_queue);
3179
3180 INIT_WORK(&local->set_tim_queue, handle_set_tim_queue);
3181 INIT_LIST_HEAD(&local->set_tim_list);
3182 spin_lock_init(&local->set_tim_lock);
3183
3184 INIT_WORK(&local->comms_qual_update, handle_comms_qual_update);
3185
3186
3187
3188#define HOSTAP_TASKLET_INIT(q, f, d) \
3189do { memset((q), 0, sizeof(*(q))); (q)->func = (f); (q)->data = (d); } \
3190while (0)
3191 HOSTAP_TASKLET_INIT(&local->bap_tasklet, hostap_bap_tasklet,
3192 (unsigned long) local);
3193
3194 HOSTAP_TASKLET_INIT(&local->info_tasklet, hostap_info_tasklet,
3195 (unsigned long) local);
3196 hostap_info_init(local);
3197
3198 HOSTAP_TASKLET_INIT(&local->rx_tasklet,
3199 hostap_rx_tasklet, (unsigned long) local);
3200 skb_queue_head_init(&local->rx_list);
3201
3202 HOSTAP_TASKLET_INIT(&local->sta_tx_exc_tasklet,
3203 hostap_sta_tx_exc_tasklet, (unsigned long) local);
3204 skb_queue_head_init(&local->sta_tx_exc_list);
3205
3206 INIT_LIST_HEAD(&local->cmd_queue);
3207 init_waitqueue_head(&local->hostscan_wq);
3208
3209 lib80211_crypt_info_init(&local->crypt_info, dev->name, &local->lock);
3210
3211 timer_setup(&local->passive_scan_timer, hostap_passive_scan, 0);
3212 timer_setup(&local->tick_timer, hostap_tick_timer, 0);
3213 local->tick_timer.expires = jiffies + 2 * HZ;
3214 add_timer(&local->tick_timer);
3215
3216 INIT_LIST_HEAD(&local->bss_list);
3217
3218 hostap_setup_dev(dev, local, HOSTAP_INTERFACE_MASTER);
3219
3220 dev->type = ARPHRD_IEEE80211;
3221 dev->header_ops = &hostap_80211_ops;
3222
3223 rtnl_lock();
3224 ret = dev_alloc_name(dev, "wifi%d");
3225 SET_NETDEV_DEV(dev, sdev);
3226 if (ret >= 0)
3227 ret = register_netdevice(dev);
3228
3229 prism2_set_lockdep_class(dev);
3230 rtnl_unlock();
3231 if (ret < 0) {
3232 printk(KERN_WARNING "%s: register netdevice failed!\n",
3233 dev_info);
3234 goto fail;
3235 }
3236 printk(KERN_INFO "%s: Registered netdevice %s\n", dev_info, dev->name);
3237
3238 hostap_init_data(local);
3239 return dev;
3240
3241 fail:
3242 free_netdev(dev);
3243 return NULL;
3244}
3245
3246
3247static int hostap_hw_ready(struct net_device *dev)
3248{
3249 struct hostap_interface *iface;
3250 struct local_info *local;
3251
3252 iface = netdev_priv(dev);
3253 local = iface->local;
3254 local->ddev = hostap_add_interface(local, HOSTAP_INTERFACE_MAIN, 0,
3255 "", dev_template);
3256
3257 if (local->ddev) {
3258 if (local->iw_mode == IW_MODE_INFRA ||
3259 local->iw_mode == IW_MODE_ADHOC) {
3260 netif_carrier_off(local->dev);
3261 netif_carrier_off(local->ddev);
3262 }
3263 hostap_init_proc(local);
3264#ifndef PRISM2_NO_PROCFS_DEBUG
3265 proc_create_single_data("registers", 0, local->proc,
3266 prism2_registers_proc_show, local);
3267#endif
3268 hostap_init_ap_proc(local);
3269 return 0;
3270 }
3271
3272 return -1;
3273}
3274
3275
3276static void prism2_free_local_data(struct net_device *dev)
3277{
3278 struct hostap_tx_callback_info *tx_cb, *tx_cb_prev;
3279 int i;
3280 struct hostap_interface *iface;
3281 struct local_info *local;
3282 struct list_head *ptr, *n;
3283
3284 if (dev == NULL)
3285 return;
3286
3287 iface = netdev_priv(dev);
3288 local = iface->local;
3289
3290
3291 list_for_each_safe(ptr, n, &local->hostap_interfaces) {
3292 iface = list_entry(ptr, struct hostap_interface, list);
3293 if (iface->type == HOSTAP_INTERFACE_MASTER) {
3294
3295 continue;
3296 }
3297 hostap_remove_interface(iface->dev, 0, 1);
3298 }
3299
3300 unregister_netdev(local->dev);
3301
3302 flush_work(&local->reset_queue);
3303 flush_work(&local->set_multicast_list_queue);
3304 flush_work(&local->set_tim_queue);
3305#ifndef PRISM2_NO_STATION_MODES
3306 flush_work(&local->info_queue);
3307#endif
3308 flush_work(&local->comms_qual_update);
3309
3310 lib80211_crypt_info_free(&local->crypt_info);
3311
3312 if (timer_pending(&local->passive_scan_timer))
3313 del_timer(&local->passive_scan_timer);
3314
3315 if (timer_pending(&local->tick_timer))
3316 del_timer(&local->tick_timer);
3317
3318 prism2_clear_cmd_queue(local);
3319
3320 skb_queue_purge(&local->info_list);
3321 skb_queue_purge(&local->rx_list);
3322 skb_queue_purge(&local->sta_tx_exc_list);
3323
3324 if (local->dev_enabled)
3325 prism2_callback(local, PRISM2_CALLBACK_DISABLE);
3326
3327 if (local->ap != NULL)
3328 hostap_free_data(local->ap);
3329
3330#ifndef PRISM2_NO_PROCFS_DEBUG
3331 if (local->proc != NULL)
3332 remove_proc_entry("registers", local->proc);
3333#endif
3334 hostap_remove_proc(local);
3335
3336 tx_cb = local->tx_callback;
3337 while (tx_cb != NULL) {
3338 tx_cb_prev = tx_cb;
3339 tx_cb = tx_cb->next;
3340 kfree(tx_cb_prev);
3341 }
3342
3343 hostap_set_hostapd(local, 0, 0);
3344 hostap_set_hostapd_sta(local, 0, 0);
3345
3346 for (i = 0; i < PRISM2_FRAG_CACHE_LEN; i++) {
3347 if (local->frag_cache[i].skb != NULL)
3348 dev_kfree_skb(local->frag_cache[i].skb);
3349 }
3350
3351#ifdef PRISM2_DOWNLOAD_SUPPORT
3352 prism2_download_free_data(local->dl_pri);
3353 prism2_download_free_data(local->dl_sec);
3354#endif
3355
3356 prism2_clear_set_tim_queue(local);
3357
3358 list_for_each_safe(ptr, n, &local->bss_list) {
3359 struct hostap_bss_info *bss =
3360 list_entry(ptr, struct hostap_bss_info, list);
3361 kfree(bss);
3362 }
3363
3364 kfree(local->pda);
3365 kfree(local->last_scan_results);
3366 kfree(local->generic_elem);
3367
3368 free_netdev(local->dev);
3369}
3370
3371
3372#if defined(PRISM2_PCI) || defined(PRISM2_PCCARD)
3373static void __maybe_unused prism2_suspend(struct net_device *dev)
3374{
3375 struct hostap_interface *iface;
3376 struct local_info *local;
3377 union iwreq_data wrqu;
3378
3379 iface = netdev_priv(dev);
3380 local = iface->local;
3381
3382
3383
3384 memset(&wrqu, 0, sizeof(wrqu));
3385 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3386 wireless_send_event(local->dev, SIOCGIWAP, &wrqu, NULL);
3387
3388
3389 prism2_hw_shutdown(dev, 0);
3390}
3391#endif
3392
3393
3394
3395
3396#ifdef PRISM2_DOWNLOAD_SUPPORT
3397#include "hostap_download.c"
3398#endif
3399
3400#ifdef PRISM2_CALLBACK
3401
3402
3403
3404
3405#include "hostap_callback.c"
3406#endif
3407