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32#include <linux/delay.h>
33#include <linux/init.h>
34#include <linux/module.h>
35#include <linux/if_arp.h>
36#include <linux/etherdevice.h>
37#include <linux/firmware.h>
38#include <linux/workqueue.h>
39#include <linux/sched/signal.h>
40#include <linux/skbuff.h>
41#include <linux/dma-mapping.h>
42#include <linux/slab.h>
43#include <net/dst.h>
44#include <asm/unaligned.h>
45
46#include "b43legacy.h"
47#include "main.h"
48#include "debugfs.h"
49#include "phy.h"
50#include "dma.h"
51#include "pio.h"
52#include "sysfs.h"
53#include "xmit.h"
54#include "radio.h"
55
56
57MODULE_DESCRIPTION("Broadcom B43legacy wireless driver");
58MODULE_AUTHOR("Martin Langer");
59MODULE_AUTHOR("Stefano Brivio");
60MODULE_AUTHOR("Michael Buesch");
61MODULE_LICENSE("GPL");
62
63MODULE_FIRMWARE("b43legacy/ucode2.fw");
64MODULE_FIRMWARE("b43legacy/ucode4.fw");
65
66#if defined(CONFIG_B43LEGACY_DMA) && defined(CONFIG_B43LEGACY_PIO)
67static int modparam_pio;
68module_param_named(pio, modparam_pio, int, 0444);
69MODULE_PARM_DESC(pio, "enable(1) / disable(0) PIO mode");
70#elif defined(CONFIG_B43LEGACY_DMA)
71# define modparam_pio 0
72#elif defined(CONFIG_B43LEGACY_PIO)
73# define modparam_pio 1
74#endif
75
76static int modparam_bad_frames_preempt;
77module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444);
78MODULE_PARM_DESC(bad_frames_preempt, "enable(1) / disable(0) Bad Frames"
79 " Preemption");
80
81static char modparam_fwpostfix[16];
82module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444);
83MODULE_PARM_DESC(fwpostfix, "Postfix for the firmware files to load.");
84
85
86static const struct ssb_device_id b43legacy_ssb_tbl[] = {
87 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 2),
88 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 4),
89 {},
90};
91MODULE_DEVICE_TABLE(ssb, b43legacy_ssb_tbl);
92
93
94
95
96
97
98#define RATETAB_ENT(_rateid, _flags) \
99 { \
100 .bitrate = B43legacy_RATE_TO_100KBPS(_rateid), \
101 .hw_value = (_rateid), \
102 .flags = (_flags), \
103 }
104
105
106
107
108static struct ieee80211_rate __b43legacy_ratetable[] = {
109 RATETAB_ENT(B43legacy_CCK_RATE_1MB, 0),
110 RATETAB_ENT(B43legacy_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE),
111 RATETAB_ENT(B43legacy_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE),
112 RATETAB_ENT(B43legacy_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE),
113 RATETAB_ENT(B43legacy_OFDM_RATE_6MB, 0),
114 RATETAB_ENT(B43legacy_OFDM_RATE_9MB, 0),
115 RATETAB_ENT(B43legacy_OFDM_RATE_12MB, 0),
116 RATETAB_ENT(B43legacy_OFDM_RATE_18MB, 0),
117 RATETAB_ENT(B43legacy_OFDM_RATE_24MB, 0),
118 RATETAB_ENT(B43legacy_OFDM_RATE_36MB, 0),
119 RATETAB_ENT(B43legacy_OFDM_RATE_48MB, 0),
120 RATETAB_ENT(B43legacy_OFDM_RATE_54MB, 0),
121};
122#define b43legacy_b_ratetable (__b43legacy_ratetable + 0)
123#define b43legacy_b_ratetable_size 4
124#define b43legacy_g_ratetable (__b43legacy_ratetable + 0)
125#define b43legacy_g_ratetable_size 12
126
127#define CHANTAB_ENT(_chanid, _freq) \
128 { \
129 .center_freq = (_freq), \
130 .hw_value = (_chanid), \
131 }
132static struct ieee80211_channel b43legacy_bg_chantable[] = {
133 CHANTAB_ENT(1, 2412),
134 CHANTAB_ENT(2, 2417),
135 CHANTAB_ENT(3, 2422),
136 CHANTAB_ENT(4, 2427),
137 CHANTAB_ENT(5, 2432),
138 CHANTAB_ENT(6, 2437),
139 CHANTAB_ENT(7, 2442),
140 CHANTAB_ENT(8, 2447),
141 CHANTAB_ENT(9, 2452),
142 CHANTAB_ENT(10, 2457),
143 CHANTAB_ENT(11, 2462),
144 CHANTAB_ENT(12, 2467),
145 CHANTAB_ENT(13, 2472),
146 CHANTAB_ENT(14, 2484),
147};
148
149static struct ieee80211_supported_band b43legacy_band_2GHz_BPHY = {
150 .channels = b43legacy_bg_chantable,
151 .n_channels = ARRAY_SIZE(b43legacy_bg_chantable),
152 .bitrates = b43legacy_b_ratetable,
153 .n_bitrates = b43legacy_b_ratetable_size,
154};
155
156static struct ieee80211_supported_band b43legacy_band_2GHz_GPHY = {
157 .channels = b43legacy_bg_chantable,
158 .n_channels = ARRAY_SIZE(b43legacy_bg_chantable),
159 .bitrates = b43legacy_g_ratetable,
160 .n_bitrates = b43legacy_g_ratetable_size,
161};
162
163static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev);
164static int b43legacy_wireless_core_init(struct b43legacy_wldev *dev);
165static void b43legacy_wireless_core_stop(struct b43legacy_wldev *dev);
166static int b43legacy_wireless_core_start(struct b43legacy_wldev *dev);
167
168
169static int b43legacy_ratelimit(struct b43legacy_wl *wl)
170{
171 if (!wl || !wl->current_dev)
172 return 1;
173 if (b43legacy_status(wl->current_dev) < B43legacy_STAT_STARTED)
174 return 1;
175
176
177 return net_ratelimit();
178}
179
180void b43legacyinfo(struct b43legacy_wl *wl, const char *fmt, ...)
181{
182 struct va_format vaf;
183 va_list args;
184
185 if (!b43legacy_ratelimit(wl))
186 return;
187
188 va_start(args, fmt);
189
190 vaf.fmt = fmt;
191 vaf.va = &args;
192
193 printk(KERN_INFO "b43legacy-%s: %pV",
194 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
195
196 va_end(args);
197}
198
199void b43legacyerr(struct b43legacy_wl *wl, const char *fmt, ...)
200{
201 struct va_format vaf;
202 va_list args;
203
204 if (!b43legacy_ratelimit(wl))
205 return;
206
207 va_start(args, fmt);
208
209 vaf.fmt = fmt;
210 vaf.va = &args;
211
212 printk(KERN_ERR "b43legacy-%s ERROR: %pV",
213 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
214
215 va_end(args);
216}
217
218void b43legacywarn(struct b43legacy_wl *wl, const char *fmt, ...)
219{
220 struct va_format vaf;
221 va_list args;
222
223 if (!b43legacy_ratelimit(wl))
224 return;
225
226 va_start(args, fmt);
227
228 vaf.fmt = fmt;
229 vaf.va = &args;
230
231 printk(KERN_WARNING "b43legacy-%s warning: %pV",
232 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
233
234 va_end(args);
235}
236
237#if B43legacy_DEBUG
238void b43legacydbg(struct b43legacy_wl *wl, const char *fmt, ...)
239{
240 struct va_format vaf;
241 va_list args;
242
243 va_start(args, fmt);
244
245 vaf.fmt = fmt;
246 vaf.va = &args;
247
248 printk(KERN_DEBUG "b43legacy-%s debug: %pV",
249 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
250
251 va_end(args);
252}
253#endif
254
255static void b43legacy_ram_write(struct b43legacy_wldev *dev, u16 offset,
256 u32 val)
257{
258 u32 status;
259
260 B43legacy_WARN_ON(offset % 4 != 0);
261
262 status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
263 if (status & B43legacy_MACCTL_BE)
264 val = swab32(val);
265
266 b43legacy_write32(dev, B43legacy_MMIO_RAM_CONTROL, offset);
267 b43legacy_write32(dev, B43legacy_MMIO_RAM_DATA, val);
268}
269
270static inline
271void b43legacy_shm_control_word(struct b43legacy_wldev *dev,
272 u16 routing, u16 offset)
273{
274 u32 control;
275
276
277
278 control = routing;
279 control <<= 16;
280 control |= offset;
281 b43legacy_write32(dev, B43legacy_MMIO_SHM_CONTROL, control);
282}
283
284u32 b43legacy_shm_read32(struct b43legacy_wldev *dev,
285 u16 routing, u16 offset)
286{
287 u32 ret;
288
289 if (routing == B43legacy_SHM_SHARED) {
290 B43legacy_WARN_ON((offset & 0x0001) != 0);
291 if (offset & 0x0003) {
292
293 b43legacy_shm_control_word(dev, routing, offset >> 2);
294 ret = b43legacy_read16(dev,
295 B43legacy_MMIO_SHM_DATA_UNALIGNED);
296 ret <<= 16;
297 b43legacy_shm_control_word(dev, routing,
298 (offset >> 2) + 1);
299 ret |= b43legacy_read16(dev, B43legacy_MMIO_SHM_DATA);
300
301 return ret;
302 }
303 offset >>= 2;
304 }
305 b43legacy_shm_control_word(dev, routing, offset);
306 ret = b43legacy_read32(dev, B43legacy_MMIO_SHM_DATA);
307
308 return ret;
309}
310
311u16 b43legacy_shm_read16(struct b43legacy_wldev *dev,
312 u16 routing, u16 offset)
313{
314 u16 ret;
315
316 if (routing == B43legacy_SHM_SHARED) {
317 B43legacy_WARN_ON((offset & 0x0001) != 0);
318 if (offset & 0x0003) {
319
320 b43legacy_shm_control_word(dev, routing, offset >> 2);
321 ret = b43legacy_read16(dev,
322 B43legacy_MMIO_SHM_DATA_UNALIGNED);
323
324 return ret;
325 }
326 offset >>= 2;
327 }
328 b43legacy_shm_control_word(dev, routing, offset);
329 ret = b43legacy_read16(dev, B43legacy_MMIO_SHM_DATA);
330
331 return ret;
332}
333
334void b43legacy_shm_write32(struct b43legacy_wldev *dev,
335 u16 routing, u16 offset,
336 u32 value)
337{
338 if (routing == B43legacy_SHM_SHARED) {
339 B43legacy_WARN_ON((offset & 0x0001) != 0);
340 if (offset & 0x0003) {
341
342 b43legacy_shm_control_word(dev, routing, offset >> 2);
343 b43legacy_write16(dev,
344 B43legacy_MMIO_SHM_DATA_UNALIGNED,
345 (value >> 16) & 0xffff);
346 b43legacy_shm_control_word(dev, routing,
347 (offset >> 2) + 1);
348 b43legacy_write16(dev, B43legacy_MMIO_SHM_DATA,
349 value & 0xffff);
350 return;
351 }
352 offset >>= 2;
353 }
354 b43legacy_shm_control_word(dev, routing, offset);
355 b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA, value);
356}
357
358void b43legacy_shm_write16(struct b43legacy_wldev *dev, u16 routing, u16 offset,
359 u16 value)
360{
361 if (routing == B43legacy_SHM_SHARED) {
362 B43legacy_WARN_ON((offset & 0x0001) != 0);
363 if (offset & 0x0003) {
364
365 b43legacy_shm_control_word(dev, routing, offset >> 2);
366 b43legacy_write16(dev,
367 B43legacy_MMIO_SHM_DATA_UNALIGNED,
368 value);
369 return;
370 }
371 offset >>= 2;
372 }
373 b43legacy_shm_control_word(dev, routing, offset);
374 b43legacy_write16(dev, B43legacy_MMIO_SHM_DATA, value);
375}
376
377
378u32 b43legacy_hf_read(struct b43legacy_wldev *dev)
379{
380 u32 ret;
381
382 ret = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
383 B43legacy_SHM_SH_HOSTFHI);
384 ret <<= 16;
385 ret |= b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
386 B43legacy_SHM_SH_HOSTFLO);
387
388 return ret;
389}
390
391
392void b43legacy_hf_write(struct b43legacy_wldev *dev, u32 value)
393{
394 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
395 B43legacy_SHM_SH_HOSTFLO,
396 (value & 0x0000FFFF));
397 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
398 B43legacy_SHM_SH_HOSTFHI,
399 ((value & 0xFFFF0000) >> 16));
400}
401
402void b43legacy_tsf_read(struct b43legacy_wldev *dev, u64 *tsf)
403{
404
405
406
407
408
409
410 if (dev->dev->id.revision >= 3) {
411 u32 low;
412 u32 high;
413 u32 high2;
414
415 do {
416 high = b43legacy_read32(dev,
417 B43legacy_MMIO_REV3PLUS_TSF_HIGH);
418 low = b43legacy_read32(dev,
419 B43legacy_MMIO_REV3PLUS_TSF_LOW);
420 high2 = b43legacy_read32(dev,
421 B43legacy_MMIO_REV3PLUS_TSF_HIGH);
422 } while (unlikely(high != high2));
423
424 *tsf = high;
425 *tsf <<= 32;
426 *tsf |= low;
427 } else {
428 u64 tmp;
429 u16 v0;
430 u16 v1;
431 u16 v2;
432 u16 v3;
433 u16 test1;
434 u16 test2;
435 u16 test3;
436
437 do {
438 v3 = b43legacy_read16(dev, B43legacy_MMIO_TSF_3);
439 v2 = b43legacy_read16(dev, B43legacy_MMIO_TSF_2);
440 v1 = b43legacy_read16(dev, B43legacy_MMIO_TSF_1);
441 v0 = b43legacy_read16(dev, B43legacy_MMIO_TSF_0);
442
443 test3 = b43legacy_read16(dev, B43legacy_MMIO_TSF_3);
444 test2 = b43legacy_read16(dev, B43legacy_MMIO_TSF_2);
445 test1 = b43legacy_read16(dev, B43legacy_MMIO_TSF_1);
446 } while (v3 != test3 || v2 != test2 || v1 != test1);
447
448 *tsf = v3;
449 *tsf <<= 48;
450 tmp = v2;
451 tmp <<= 32;
452 *tsf |= tmp;
453 tmp = v1;
454 tmp <<= 16;
455 *tsf |= tmp;
456 *tsf |= v0;
457 }
458}
459
460static void b43legacy_time_lock(struct b43legacy_wldev *dev)
461{
462 u32 status;
463
464 status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
465 status |= B43legacy_MACCTL_TBTTHOLD;
466 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
467}
468
469static void b43legacy_time_unlock(struct b43legacy_wldev *dev)
470{
471 u32 status;
472
473 status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
474 status &= ~B43legacy_MACCTL_TBTTHOLD;
475 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
476}
477
478static void b43legacy_tsf_write_locked(struct b43legacy_wldev *dev, u64 tsf)
479{
480
481
482
483
484 if (dev->dev->id.revision >= 3) {
485 u32 lo = (tsf & 0x00000000FFFFFFFFULL);
486 u32 hi = (tsf & 0xFFFFFFFF00000000ULL) >> 32;
487
488 b43legacy_write32(dev, B43legacy_MMIO_REV3PLUS_TSF_LOW, 0);
489 b43legacy_write32(dev, B43legacy_MMIO_REV3PLUS_TSF_HIGH,
490 hi);
491 b43legacy_write32(dev, B43legacy_MMIO_REV3PLUS_TSF_LOW,
492 lo);
493 } else {
494 u16 v0 = (tsf & 0x000000000000FFFFULL);
495 u16 v1 = (tsf & 0x00000000FFFF0000ULL) >> 16;
496 u16 v2 = (tsf & 0x0000FFFF00000000ULL) >> 32;
497 u16 v3 = (tsf & 0xFFFF000000000000ULL) >> 48;
498
499 b43legacy_write16(dev, B43legacy_MMIO_TSF_0, 0);
500 b43legacy_write16(dev, B43legacy_MMIO_TSF_3, v3);
501 b43legacy_write16(dev, B43legacy_MMIO_TSF_2, v2);
502 b43legacy_write16(dev, B43legacy_MMIO_TSF_1, v1);
503 b43legacy_write16(dev, B43legacy_MMIO_TSF_0, v0);
504 }
505}
506
507void b43legacy_tsf_write(struct b43legacy_wldev *dev, u64 tsf)
508{
509 b43legacy_time_lock(dev);
510 b43legacy_tsf_write_locked(dev, tsf);
511 b43legacy_time_unlock(dev);
512}
513
514static
515void b43legacy_macfilter_set(struct b43legacy_wldev *dev,
516 u16 offset, const u8 *mac)
517{
518 static const u8 zero_addr[ETH_ALEN] = { 0 };
519 u16 data;
520
521 if (!mac)
522 mac = zero_addr;
523
524 offset |= 0x0020;
525 b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_CONTROL, offset);
526
527 data = mac[0];
528 data |= mac[1] << 8;
529 b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_DATA, data);
530 data = mac[2];
531 data |= mac[3] << 8;
532 b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_DATA, data);
533 data = mac[4];
534 data |= mac[5] << 8;
535 b43legacy_write16(dev, B43legacy_MMIO_MACFILTER_DATA, data);
536}
537
538static void b43legacy_write_mac_bssid_templates(struct b43legacy_wldev *dev)
539{
540 static const u8 zero_addr[ETH_ALEN] = { 0 };
541 const u8 *mac = dev->wl->mac_addr;
542 const u8 *bssid = dev->wl->bssid;
543 u8 mac_bssid[ETH_ALEN * 2];
544 int i;
545 u32 tmp;
546
547 if (!bssid)
548 bssid = zero_addr;
549 if (!mac)
550 mac = zero_addr;
551
552 b43legacy_macfilter_set(dev, B43legacy_MACFILTER_BSSID, bssid);
553
554 memcpy(mac_bssid, mac, ETH_ALEN);
555 memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN);
556
557
558 for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) {
559 tmp = (u32)(mac_bssid[i + 0]);
560 tmp |= (u32)(mac_bssid[i + 1]) << 8;
561 tmp |= (u32)(mac_bssid[i + 2]) << 16;
562 tmp |= (u32)(mac_bssid[i + 3]) << 24;
563 b43legacy_ram_write(dev, 0x20 + i, tmp);
564 b43legacy_ram_write(dev, 0x78 + i, tmp);
565 b43legacy_ram_write(dev, 0x478 + i, tmp);
566 }
567}
568
569static void b43legacy_upload_card_macaddress(struct b43legacy_wldev *dev)
570{
571 b43legacy_write_mac_bssid_templates(dev);
572 b43legacy_macfilter_set(dev, B43legacy_MACFILTER_SELF,
573 dev->wl->mac_addr);
574}
575
576static void b43legacy_set_slot_time(struct b43legacy_wldev *dev,
577 u16 slot_time)
578{
579
580 if (dev->phy.type != B43legacy_PHYTYPE_G)
581 return;
582 b43legacy_write16(dev, 0x684, 510 + slot_time);
583 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0010,
584 slot_time);
585}
586
587static void b43legacy_short_slot_timing_enable(struct b43legacy_wldev *dev)
588{
589 b43legacy_set_slot_time(dev, 9);
590}
591
592static void b43legacy_short_slot_timing_disable(struct b43legacy_wldev *dev)
593{
594 b43legacy_set_slot_time(dev, 20);
595}
596
597
598
599
600
601static void b43legacy_synchronize_irq(struct b43legacy_wldev *dev)
602{
603 synchronize_irq(dev->dev->irq);
604 tasklet_kill(&dev->isr_tasklet);
605}
606
607
608
609
610void b43legacy_dummy_transmission(struct b43legacy_wldev *dev)
611{
612 struct b43legacy_phy *phy = &dev->phy;
613 unsigned int i;
614 unsigned int max_loop;
615 u16 value;
616 u32 buffer[5] = {
617 0x00000000,
618 0x00D40000,
619 0x00000000,
620 0x01000000,
621 0x00000000,
622 };
623
624 switch (phy->type) {
625 case B43legacy_PHYTYPE_B:
626 case B43legacy_PHYTYPE_G:
627 max_loop = 0xFA;
628 buffer[0] = 0x000B846E;
629 break;
630 default:
631 B43legacy_BUG_ON(1);
632 return;
633 }
634
635 for (i = 0; i < 5; i++)
636 b43legacy_ram_write(dev, i * 4, buffer[i]);
637
638
639 b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
640
641 b43legacy_write16(dev, 0x0568, 0x0000);
642 b43legacy_write16(dev, 0x07C0, 0x0000);
643 b43legacy_write16(dev, 0x050C, 0x0000);
644 b43legacy_write16(dev, 0x0508, 0x0000);
645 b43legacy_write16(dev, 0x050A, 0x0000);
646 b43legacy_write16(dev, 0x054C, 0x0000);
647 b43legacy_write16(dev, 0x056A, 0x0014);
648 b43legacy_write16(dev, 0x0568, 0x0826);
649 b43legacy_write16(dev, 0x0500, 0x0000);
650 b43legacy_write16(dev, 0x0502, 0x0030);
651
652 if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
653 b43legacy_radio_write16(dev, 0x0051, 0x0017);
654 for (i = 0x00; i < max_loop; i++) {
655 value = b43legacy_read16(dev, 0x050E);
656 if (value & 0x0080)
657 break;
658 udelay(10);
659 }
660 for (i = 0x00; i < 0x0A; i++) {
661 value = b43legacy_read16(dev, 0x050E);
662 if (value & 0x0400)
663 break;
664 udelay(10);
665 }
666 for (i = 0x00; i < 0x0A; i++) {
667 value = b43legacy_read16(dev, 0x0690);
668 if (!(value & 0x0100))
669 break;
670 udelay(10);
671 }
672 if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
673 b43legacy_radio_write16(dev, 0x0051, 0x0037);
674}
675
676
677static void b43legacy_switch_analog(struct b43legacy_wldev *dev, int on)
678{
679 b43legacy_write16(dev, B43legacy_MMIO_PHY0, on ? 0 : 0xF4);
680}
681
682void b43legacy_wireless_core_reset(struct b43legacy_wldev *dev, u32 flags)
683{
684 u32 tmslow;
685 u32 macctl;
686
687 flags |= B43legacy_TMSLOW_PHYCLKEN;
688 flags |= B43legacy_TMSLOW_PHYRESET;
689 ssb_device_enable(dev->dev, flags);
690 msleep(2);
691
692
693 tmslow = ssb_read32(dev->dev, SSB_TMSLOW);
694 tmslow |= SSB_TMSLOW_FGC;
695 tmslow &= ~B43legacy_TMSLOW_PHYRESET;
696 ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
697 ssb_read32(dev->dev, SSB_TMSLOW);
698 msleep(1);
699 tmslow &= ~SSB_TMSLOW_FGC;
700 ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
701 ssb_read32(dev->dev, SSB_TMSLOW);
702 msleep(1);
703
704
705 b43legacy_switch_analog(dev, 1);
706
707 macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
708 macctl &= ~B43legacy_MACCTL_GMODE;
709 if (flags & B43legacy_TMSLOW_GMODE) {
710 macctl |= B43legacy_MACCTL_GMODE;
711 dev->phy.gmode = true;
712 } else
713 dev->phy.gmode = false;
714 macctl |= B43legacy_MACCTL_IHR_ENABLED;
715 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
716}
717
718static void handle_irq_transmit_status(struct b43legacy_wldev *dev)
719{
720 u32 v0;
721 u32 v1;
722 u16 tmp;
723 struct b43legacy_txstatus stat;
724
725 while (1) {
726 v0 = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_0);
727 if (!(v0 & 0x00000001))
728 break;
729 v1 = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_1);
730
731 stat.cookie = (v0 >> 16);
732 stat.seq = (v1 & 0x0000FFFF);
733 stat.phy_stat = ((v1 & 0x00FF0000) >> 16);
734 tmp = (v0 & 0x0000FFFF);
735 stat.frame_count = ((tmp & 0xF000) >> 12);
736 stat.rts_count = ((tmp & 0x0F00) >> 8);
737 stat.supp_reason = ((tmp & 0x001C) >> 2);
738 stat.pm_indicated = !!(tmp & 0x0080);
739 stat.intermediate = !!(tmp & 0x0040);
740 stat.for_ampdu = !!(tmp & 0x0020);
741 stat.acked = !!(tmp & 0x0002);
742
743 b43legacy_handle_txstatus(dev, &stat);
744 }
745}
746
747static void drain_txstatus_queue(struct b43legacy_wldev *dev)
748{
749 u32 dummy;
750
751 if (dev->dev->id.revision < 5)
752 return;
753
754
755
756 while (1) {
757 dummy = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_0);
758 if (!(dummy & 0x00000001))
759 break;
760 dummy = b43legacy_read32(dev, B43legacy_MMIO_XMITSTAT_1);
761 }
762}
763
764static u32 b43legacy_jssi_read(struct b43legacy_wldev *dev)
765{
766 u32 val = 0;
767
768 val = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x40A);
769 val <<= 16;
770 val |= b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x408);
771
772 return val;
773}
774
775static void b43legacy_jssi_write(struct b43legacy_wldev *dev, u32 jssi)
776{
777 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x408,
778 (jssi & 0x0000FFFF));
779 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x40A,
780 (jssi & 0xFFFF0000) >> 16);
781}
782
783static void b43legacy_generate_noise_sample(struct b43legacy_wldev *dev)
784{
785 b43legacy_jssi_write(dev, 0x7F7F7F7F);
786 b43legacy_write32(dev, B43legacy_MMIO_MACCMD,
787 b43legacy_read32(dev, B43legacy_MMIO_MACCMD)
788 | B43legacy_MACCMD_BGNOISE);
789 B43legacy_WARN_ON(dev->noisecalc.channel_at_start !=
790 dev->phy.channel);
791}
792
793static void b43legacy_calculate_link_quality(struct b43legacy_wldev *dev)
794{
795
796
797 if (dev->noisecalc.calculation_running)
798 return;
799 dev->noisecalc.channel_at_start = dev->phy.channel;
800 dev->noisecalc.calculation_running = true;
801 dev->noisecalc.nr_samples = 0;
802
803 b43legacy_generate_noise_sample(dev);
804}
805
806static void handle_irq_noise(struct b43legacy_wldev *dev)
807{
808 struct b43legacy_phy *phy = &dev->phy;
809 u16 tmp;
810 u8 noise[4];
811 u8 i;
812 u8 j;
813 s32 average;
814
815
816
817 B43legacy_WARN_ON(!dev->noisecalc.calculation_running);
818 if (dev->noisecalc.channel_at_start != phy->channel)
819 goto drop_calculation;
820 *((__le32 *)noise) = cpu_to_le32(b43legacy_jssi_read(dev));
821 if (noise[0] == 0x7F || noise[1] == 0x7F ||
822 noise[2] == 0x7F || noise[3] == 0x7F)
823 goto generate_new;
824
825
826 B43legacy_WARN_ON(dev->noisecalc.nr_samples >= 8);
827 i = dev->noisecalc.nr_samples;
828 noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
829 noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
830 noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
831 noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
832 dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]];
833 dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]];
834 dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]];
835 dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]];
836 dev->noisecalc.nr_samples++;
837 if (dev->noisecalc.nr_samples == 8) {
838
839 average = 0;
840 for (i = 0; i < 8; i++) {
841 for (j = 0; j < 4; j++)
842 average += dev->noisecalc.samples[i][j];
843 }
844 average /= (8 * 4);
845 average *= 125;
846 average += 64;
847 average /= 128;
848 tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
849 0x40C);
850 tmp = (tmp / 128) & 0x1F;
851 if (tmp >= 8)
852 average += 2;
853 else
854 average -= 25;
855 if (tmp == 8)
856 average -= 72;
857 else
858 average -= 48;
859
860 dev->stats.link_noise = average;
861drop_calculation:
862 dev->noisecalc.calculation_running = false;
863 return;
864 }
865generate_new:
866 b43legacy_generate_noise_sample(dev);
867}
868
869static void handle_irq_tbtt_indication(struct b43legacy_wldev *dev)
870{
871 if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_AP)) {
872
873 } else {
874 if (1)
875 b43legacy_power_saving_ctl_bits(dev, -1, -1);
876 }
877 if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_ADHOC))
878 dev->dfq_valid = true;
879}
880
881static void handle_irq_atim_end(struct b43legacy_wldev *dev)
882{
883 if (dev->dfq_valid) {
884 b43legacy_write32(dev, B43legacy_MMIO_MACCMD,
885 b43legacy_read32(dev, B43legacy_MMIO_MACCMD)
886 | B43legacy_MACCMD_DFQ_VALID);
887 dev->dfq_valid = false;
888 }
889}
890
891static void handle_irq_pmq(struct b43legacy_wldev *dev)
892{
893 u32 tmp;
894
895
896
897 while (1) {
898 tmp = b43legacy_read32(dev, B43legacy_MMIO_PS_STATUS);
899 if (!(tmp & 0x00000008))
900 break;
901 }
902
903 b43legacy_write16(dev, B43legacy_MMIO_PS_STATUS, 0x0002);
904}
905
906static void b43legacy_write_template_common(struct b43legacy_wldev *dev,
907 const u8 *data, u16 size,
908 u16 ram_offset,
909 u16 shm_size_offset, u8 rate)
910{
911 u32 i;
912 u32 tmp;
913 struct b43legacy_plcp_hdr4 plcp;
914
915 plcp.data = 0;
916 b43legacy_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
917 b43legacy_ram_write(dev, ram_offset, le32_to_cpu(plcp.data));
918 ram_offset += sizeof(u32);
919
920
921
922 tmp = (u32)(data[0]) << 16;
923 tmp |= (u32)(data[1]) << 24;
924 b43legacy_ram_write(dev, ram_offset, tmp);
925 ram_offset += sizeof(u32);
926 for (i = 2; i < size; i += sizeof(u32)) {
927 tmp = (u32)(data[i + 0]);
928 if (i + 1 < size)
929 tmp |= (u32)(data[i + 1]) << 8;
930 if (i + 2 < size)
931 tmp |= (u32)(data[i + 2]) << 16;
932 if (i + 3 < size)
933 tmp |= (u32)(data[i + 3]) << 24;
934 b43legacy_ram_write(dev, ram_offset + i - 2, tmp);
935 }
936 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_size_offset,
937 size + sizeof(struct b43legacy_plcp_hdr6));
938}
939
940
941static u16 b43legacy_antenna_to_phyctl(int antenna)
942{
943 switch (antenna) {
944 case B43legacy_ANTENNA0:
945 return B43legacy_TX4_PHY_ANT0;
946 case B43legacy_ANTENNA1:
947 return B43legacy_TX4_PHY_ANT1;
948 }
949 return B43legacy_TX4_PHY_ANTLAST;
950}
951
952static void b43legacy_write_beacon_template(struct b43legacy_wldev *dev,
953 u16 ram_offset,
954 u16 shm_size_offset)
955{
956
957 unsigned int i, len, variable_len;
958 const struct ieee80211_mgmt *bcn;
959 const u8 *ie;
960 bool tim_found = false;
961 unsigned int rate;
962 u16 ctl;
963 int antenna;
964 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon);
965
966 bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data);
967 len = min_t(size_t, dev->wl->current_beacon->len,
968 0x200 - sizeof(struct b43legacy_plcp_hdr6));
969 rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value;
970
971 b43legacy_write_template_common(dev, (const u8 *)bcn, len, ram_offset,
972 shm_size_offset, rate);
973
974
975 antenna = B43legacy_ANTENNA_DEFAULT;
976 antenna = b43legacy_antenna_to_phyctl(antenna);
977 ctl = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
978 B43legacy_SHM_SH_BEACPHYCTL);
979
980 ctl &= ~B43legacy_TX4_PHY_SHORTPRMBL;
981 ctl &= ~B43legacy_TX4_PHY_ANT;
982 ctl &= ~B43legacy_TX4_PHY_ENC;
983 ctl |= antenna;
984 ctl |= B43legacy_TX4_PHY_ENC_CCK;
985 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
986 B43legacy_SHM_SH_BEACPHYCTL, ctl);
987
988
989
990 ie = bcn->u.beacon.variable;
991 variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
992 for (i = 0; i < variable_len - 2; ) {
993 uint8_t ie_id, ie_len;
994
995 ie_id = ie[i];
996 ie_len = ie[i + 1];
997 if (ie_id == 5) {
998 u16 tim_position;
999 u16 dtim_period;
1000
1001
1002
1003 if (variable_len < ie_len + 2 + i)
1004 break;
1005
1006 if (ie_len < 4)
1007 break;
1008 tim_found = true;
1009
1010 tim_position = sizeof(struct b43legacy_plcp_hdr6);
1011 tim_position += offsetof(struct ieee80211_mgmt,
1012 u.beacon.variable);
1013 tim_position += i;
1014
1015 dtim_period = ie[i + 3];
1016
1017 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
1018 B43legacy_SHM_SH_TIMPOS, tim_position);
1019 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
1020 B43legacy_SHM_SH_DTIMP, dtim_period);
1021 break;
1022 }
1023 i += ie_len + 2;
1024 }
1025 if (!tim_found) {
1026 b43legacywarn(dev->wl, "Did not find a valid TIM IE in the "
1027 "beacon template packet. AP or IBSS operation "
1028 "may be broken.\n");
1029 } else
1030 b43legacydbg(dev->wl, "Updated beacon template\n");
1031}
1032
1033static void b43legacy_write_probe_resp_plcp(struct b43legacy_wldev *dev,
1034 u16 shm_offset, u16 size,
1035 struct ieee80211_rate *rate)
1036{
1037 struct b43legacy_plcp_hdr4 plcp;
1038 u32 tmp;
1039 __le16 dur;
1040
1041 plcp.data = 0;
1042 b43legacy_generate_plcp_hdr(&plcp, size + FCS_LEN, rate->hw_value);
1043 dur = ieee80211_generic_frame_duration(dev->wl->hw,
1044 dev->wl->vif,
1045 NL80211_BAND_2GHZ,
1046 size,
1047 rate);
1048
1049 tmp = le32_to_cpu(plcp.data);
1050 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_offset,
1051 tmp & 0xFFFF);
1052 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_offset + 2,
1053 tmp >> 16);
1054 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, shm_offset + 6,
1055 le16_to_cpu(dur));
1056}
1057
1058
1059
1060
1061
1062
1063
1064static const u8 *b43legacy_generate_probe_resp(struct b43legacy_wldev *dev,
1065 u16 *dest_size,
1066 struct ieee80211_rate *rate)
1067{
1068 const u8 *src_data;
1069 u8 *dest_data;
1070 u16 src_size, elem_size, src_pos, dest_pos;
1071 __le16 dur;
1072 struct ieee80211_hdr *hdr;
1073 size_t ie_start;
1074
1075 src_size = dev->wl->current_beacon->len;
1076 src_data = (const u8 *)dev->wl->current_beacon->data;
1077
1078
1079 ie_start = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
1080 B43legacy_WARN_ON(ie_start != offsetof(struct ieee80211_mgmt,
1081 u.beacon.variable));
1082
1083 if (B43legacy_WARN_ON(src_size < ie_start))
1084 return NULL;
1085
1086 dest_data = kmalloc(src_size, GFP_ATOMIC);
1087 if (unlikely(!dest_data))
1088 return NULL;
1089
1090
1091 memcpy(dest_data, src_data, ie_start);
1092 src_pos = ie_start;
1093 dest_pos = ie_start;
1094 for ( ; src_pos < src_size - 2; src_pos += elem_size) {
1095 elem_size = src_data[src_pos + 1] + 2;
1096 if (src_data[src_pos] == 5) {
1097
1098 continue;
1099 }
1100 memcpy(dest_data + dest_pos, src_data + src_pos, elem_size);
1101 dest_pos += elem_size;
1102 }
1103 *dest_size = dest_pos;
1104 hdr = (struct ieee80211_hdr *)dest_data;
1105
1106
1107 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1108 IEEE80211_STYPE_PROBE_RESP);
1109 dur = ieee80211_generic_frame_duration(dev->wl->hw,
1110 dev->wl->vif,
1111 NL80211_BAND_2GHZ,
1112 *dest_size,
1113 rate);
1114 hdr->duration_id = dur;
1115
1116 return dest_data;
1117}
1118
1119static void b43legacy_write_probe_resp_template(struct b43legacy_wldev *dev,
1120 u16 ram_offset,
1121 u16 shm_size_offset,
1122 struct ieee80211_rate *rate)
1123{
1124 const u8 *probe_resp_data;
1125 u16 size;
1126
1127 size = dev->wl->current_beacon->len;
1128 probe_resp_data = b43legacy_generate_probe_resp(dev, &size, rate);
1129 if (unlikely(!probe_resp_data))
1130 return;
1131
1132
1133
1134
1135 b43legacy_write_probe_resp_plcp(dev, 0x31A, size,
1136 &b43legacy_b_ratetable[0]);
1137 b43legacy_write_probe_resp_plcp(dev, 0x32C, size,
1138 &b43legacy_b_ratetable[1]);
1139 b43legacy_write_probe_resp_plcp(dev, 0x33E, size,
1140 &b43legacy_b_ratetable[2]);
1141 b43legacy_write_probe_resp_plcp(dev, 0x350, size,
1142 &b43legacy_b_ratetable[3]);
1143
1144 size = min_t(size_t, size,
1145 0x200 - sizeof(struct b43legacy_plcp_hdr6));
1146 b43legacy_write_template_common(dev, probe_resp_data,
1147 size, ram_offset,
1148 shm_size_offset, rate->hw_value);
1149 kfree(probe_resp_data);
1150}
1151
1152static void b43legacy_upload_beacon0(struct b43legacy_wldev *dev)
1153{
1154 struct b43legacy_wl *wl = dev->wl;
1155
1156 if (wl->beacon0_uploaded)
1157 return;
1158 b43legacy_write_beacon_template(dev, 0x68, 0x18);
1159
1160
1161 b43legacy_write_probe_resp_template(dev, 0x268, 0x4A,
1162 &__b43legacy_ratetable[3]);
1163 wl->beacon0_uploaded = true;
1164}
1165
1166static void b43legacy_upload_beacon1(struct b43legacy_wldev *dev)
1167{
1168 struct b43legacy_wl *wl = dev->wl;
1169
1170 if (wl->beacon1_uploaded)
1171 return;
1172 b43legacy_write_beacon_template(dev, 0x468, 0x1A);
1173 wl->beacon1_uploaded = true;
1174}
1175
1176static void handle_irq_beacon(struct b43legacy_wldev *dev)
1177{
1178 struct b43legacy_wl *wl = dev->wl;
1179 u32 cmd, beacon0_valid, beacon1_valid;
1180
1181 if (!b43legacy_is_mode(wl, NL80211_IFTYPE_AP))
1182 return;
1183
1184
1185
1186
1187 dev->irq_mask &= ~B43legacy_IRQ_BEACON;
1188
1189 cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
1190 beacon0_valid = (cmd & B43legacy_MACCMD_BEACON0_VALID);
1191 beacon1_valid = (cmd & B43legacy_MACCMD_BEACON1_VALID);
1192
1193
1194 if (beacon0_valid && beacon1_valid) {
1195 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, B43legacy_IRQ_BEACON);
1196 dev->irq_mask |= B43legacy_IRQ_BEACON;
1197 return;
1198 }
1199
1200 if (unlikely(wl->beacon_templates_virgin)) {
1201
1202
1203 wl->beacon_templates_virgin = false;
1204 b43legacy_upload_beacon0(dev);
1205 b43legacy_upload_beacon1(dev);
1206 cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
1207 cmd |= B43legacy_MACCMD_BEACON0_VALID;
1208 b43legacy_write32(dev, B43legacy_MMIO_MACCMD, cmd);
1209 } else {
1210 if (!beacon0_valid) {
1211 b43legacy_upload_beacon0(dev);
1212 cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
1213 cmd |= B43legacy_MACCMD_BEACON0_VALID;
1214 b43legacy_write32(dev, B43legacy_MMIO_MACCMD, cmd);
1215 } else if (!beacon1_valid) {
1216 b43legacy_upload_beacon1(dev);
1217 cmd = b43legacy_read32(dev, B43legacy_MMIO_MACCMD);
1218 cmd |= B43legacy_MACCMD_BEACON1_VALID;
1219 b43legacy_write32(dev, B43legacy_MMIO_MACCMD, cmd);
1220 }
1221 }
1222}
1223
1224static void b43legacy_beacon_update_trigger_work(struct work_struct *work)
1225{
1226 struct b43legacy_wl *wl = container_of(work, struct b43legacy_wl,
1227 beacon_update_trigger);
1228 struct b43legacy_wldev *dev;
1229
1230 mutex_lock(&wl->mutex);
1231 dev = wl->current_dev;
1232 if (likely(dev && (b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED))) {
1233 spin_lock_irq(&wl->irq_lock);
1234
1235 handle_irq_beacon(dev);
1236
1237 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK,
1238 dev->irq_mask);
1239 spin_unlock_irq(&wl->irq_lock);
1240 }
1241 mutex_unlock(&wl->mutex);
1242}
1243
1244
1245
1246static void b43legacy_update_templates(struct b43legacy_wl *wl)
1247{
1248 struct sk_buff *beacon;
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258 beacon = ieee80211_beacon_get(wl->hw, wl->vif);
1259 if (unlikely(!beacon))
1260 return;
1261
1262 if (wl->current_beacon)
1263 dev_kfree_skb_any(wl->current_beacon);
1264 wl->current_beacon = beacon;
1265 wl->beacon0_uploaded = false;
1266 wl->beacon1_uploaded = false;
1267 ieee80211_queue_work(wl->hw, &wl->beacon_update_trigger);
1268}
1269
1270static void b43legacy_set_beacon_int(struct b43legacy_wldev *dev,
1271 u16 beacon_int)
1272{
1273 b43legacy_time_lock(dev);
1274 if (dev->dev->id.revision >= 3) {
1275 b43legacy_write32(dev, B43legacy_MMIO_TSF_CFP_REP,
1276 (beacon_int << 16));
1277 b43legacy_write32(dev, B43legacy_MMIO_TSF_CFP_START,
1278 (beacon_int << 10));
1279 } else {
1280 b43legacy_write16(dev, 0x606, (beacon_int >> 6));
1281 b43legacy_write16(dev, 0x610, beacon_int);
1282 }
1283 b43legacy_time_unlock(dev);
1284 b43legacydbg(dev->wl, "Set beacon interval to %u\n", beacon_int);
1285}
1286
1287static void handle_irq_ucode_debug(struct b43legacy_wldev *dev)
1288{
1289}
1290
1291
1292static void b43legacy_interrupt_tasklet(struct b43legacy_wldev *dev)
1293{
1294 u32 reason;
1295 u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
1296 u32 merged_dma_reason = 0;
1297 int i;
1298 unsigned long flags;
1299
1300 spin_lock_irqsave(&dev->wl->irq_lock, flags);
1301
1302 B43legacy_WARN_ON(b43legacy_status(dev) <
1303 B43legacy_STAT_INITIALIZED);
1304
1305 reason = dev->irq_reason;
1306 for (i = 0; i < ARRAY_SIZE(dma_reason); i++) {
1307 dma_reason[i] = dev->dma_reason[i];
1308 merged_dma_reason |= dma_reason[i];
1309 }
1310
1311 if (unlikely(reason & B43legacy_IRQ_MAC_TXERR))
1312 b43legacyerr(dev->wl, "MAC transmission error\n");
1313
1314 if (unlikely(reason & B43legacy_IRQ_PHY_TXERR)) {
1315 b43legacyerr(dev->wl, "PHY transmission error\n");
1316 rmb();
1317 if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) {
1318 b43legacyerr(dev->wl, "Too many PHY TX errors, "
1319 "restarting the controller\n");
1320 b43legacy_controller_restart(dev, "PHY TX errors");
1321 }
1322 }
1323
1324 if (unlikely(merged_dma_reason & (B43legacy_DMAIRQ_FATALMASK |
1325 B43legacy_DMAIRQ_NONFATALMASK))) {
1326 if (merged_dma_reason & B43legacy_DMAIRQ_FATALMASK) {
1327 b43legacyerr(dev->wl, "Fatal DMA error: "
1328 "0x%08X, 0x%08X, 0x%08X, "
1329 "0x%08X, 0x%08X, 0x%08X\n",
1330 dma_reason[0], dma_reason[1],
1331 dma_reason[2], dma_reason[3],
1332 dma_reason[4], dma_reason[5]);
1333 b43legacy_controller_restart(dev, "DMA error");
1334 spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
1335 return;
1336 }
1337 if (merged_dma_reason & B43legacy_DMAIRQ_NONFATALMASK)
1338 b43legacyerr(dev->wl, "DMA error: "
1339 "0x%08X, 0x%08X, 0x%08X, "
1340 "0x%08X, 0x%08X, 0x%08X\n",
1341 dma_reason[0], dma_reason[1],
1342 dma_reason[2], dma_reason[3],
1343 dma_reason[4], dma_reason[5]);
1344 }
1345
1346 if (unlikely(reason & B43legacy_IRQ_UCODE_DEBUG))
1347 handle_irq_ucode_debug(dev);
1348 if (reason & B43legacy_IRQ_TBTT_INDI)
1349 handle_irq_tbtt_indication(dev);
1350 if (reason & B43legacy_IRQ_ATIM_END)
1351 handle_irq_atim_end(dev);
1352 if (reason & B43legacy_IRQ_BEACON)
1353 handle_irq_beacon(dev);
1354 if (reason & B43legacy_IRQ_PMQ)
1355 handle_irq_pmq(dev);
1356 if (reason & B43legacy_IRQ_TXFIFO_FLUSH_OK)
1357 ;
1358 if (reason & B43legacy_IRQ_NOISESAMPLE_OK)
1359 handle_irq_noise(dev);
1360
1361
1362 if (dma_reason[0] & B43legacy_DMAIRQ_RX_DONE) {
1363 if (b43legacy_using_pio(dev))
1364 b43legacy_pio_rx(dev->pio.queue0);
1365 else
1366 b43legacy_dma_rx(dev->dma.rx_ring0);
1367 }
1368 B43legacy_WARN_ON(dma_reason[1] & B43legacy_DMAIRQ_RX_DONE);
1369 B43legacy_WARN_ON(dma_reason[2] & B43legacy_DMAIRQ_RX_DONE);
1370 if (dma_reason[3] & B43legacy_DMAIRQ_RX_DONE) {
1371 if (b43legacy_using_pio(dev))
1372 b43legacy_pio_rx(dev->pio.queue3);
1373 else
1374 b43legacy_dma_rx(dev->dma.rx_ring3);
1375 }
1376 B43legacy_WARN_ON(dma_reason[4] & B43legacy_DMAIRQ_RX_DONE);
1377 B43legacy_WARN_ON(dma_reason[5] & B43legacy_DMAIRQ_RX_DONE);
1378
1379 if (reason & B43legacy_IRQ_TX_OK)
1380 handle_irq_transmit_status(dev);
1381
1382 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
1383 spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
1384}
1385
1386static void pio_irq_workaround(struct b43legacy_wldev *dev,
1387 u16 base, int queueidx)
1388{
1389 u16 rxctl;
1390
1391 rxctl = b43legacy_read16(dev, base + B43legacy_PIO_RXCTL);
1392 if (rxctl & B43legacy_PIO_RXCTL_DATAAVAILABLE)
1393 dev->dma_reason[queueidx] |= B43legacy_DMAIRQ_RX_DONE;
1394 else
1395 dev->dma_reason[queueidx] &= ~B43legacy_DMAIRQ_RX_DONE;
1396}
1397
1398static void b43legacy_interrupt_ack(struct b43legacy_wldev *dev, u32 reason)
1399{
1400 if (b43legacy_using_pio(dev) &&
1401 (dev->dev->id.revision < 3) &&
1402 (!(reason & B43legacy_IRQ_PIO_WORKAROUND))) {
1403
1404 pio_irq_workaround(dev, B43legacy_MMIO_PIO1_BASE, 0);
1405 pio_irq_workaround(dev, B43legacy_MMIO_PIO2_BASE, 1);
1406 pio_irq_workaround(dev, B43legacy_MMIO_PIO3_BASE, 2);
1407 pio_irq_workaround(dev, B43legacy_MMIO_PIO4_BASE, 3);
1408 }
1409
1410 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, reason);
1411
1412 b43legacy_write32(dev, B43legacy_MMIO_DMA0_REASON,
1413 dev->dma_reason[0]);
1414 b43legacy_write32(dev, B43legacy_MMIO_DMA1_REASON,
1415 dev->dma_reason[1]);
1416 b43legacy_write32(dev, B43legacy_MMIO_DMA2_REASON,
1417 dev->dma_reason[2]);
1418 b43legacy_write32(dev, B43legacy_MMIO_DMA3_REASON,
1419 dev->dma_reason[3]);
1420 b43legacy_write32(dev, B43legacy_MMIO_DMA4_REASON,
1421 dev->dma_reason[4]);
1422 b43legacy_write32(dev, B43legacy_MMIO_DMA5_REASON,
1423 dev->dma_reason[5]);
1424}
1425
1426
1427static irqreturn_t b43legacy_interrupt_handler(int irq, void *dev_id)
1428{
1429 irqreturn_t ret = IRQ_NONE;
1430 struct b43legacy_wldev *dev = dev_id;
1431 u32 reason;
1432
1433 B43legacy_WARN_ON(!dev);
1434
1435 spin_lock(&dev->wl->irq_lock);
1436
1437 if (unlikely(b43legacy_status(dev) < B43legacy_STAT_STARTED))
1438
1439 goto out;
1440 reason = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
1441 if (reason == 0xffffffff)
1442 goto out;
1443 ret = IRQ_HANDLED;
1444 reason &= dev->irq_mask;
1445 if (!reason)
1446 goto out;
1447
1448 dev->dma_reason[0] = b43legacy_read32(dev,
1449 B43legacy_MMIO_DMA0_REASON)
1450 & 0x0001DC00;
1451 dev->dma_reason[1] = b43legacy_read32(dev,
1452 B43legacy_MMIO_DMA1_REASON)
1453 & 0x0000DC00;
1454 dev->dma_reason[2] = b43legacy_read32(dev,
1455 B43legacy_MMIO_DMA2_REASON)
1456 & 0x0000DC00;
1457 dev->dma_reason[3] = b43legacy_read32(dev,
1458 B43legacy_MMIO_DMA3_REASON)
1459 & 0x0001DC00;
1460 dev->dma_reason[4] = b43legacy_read32(dev,
1461 B43legacy_MMIO_DMA4_REASON)
1462 & 0x0000DC00;
1463 dev->dma_reason[5] = b43legacy_read32(dev,
1464 B43legacy_MMIO_DMA5_REASON)
1465 & 0x0000DC00;
1466
1467 b43legacy_interrupt_ack(dev, reason);
1468
1469 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
1470
1471 dev->irq_reason = reason;
1472 tasklet_schedule(&dev->isr_tasklet);
1473out:
1474 spin_unlock(&dev->wl->irq_lock);
1475
1476 return ret;
1477}
1478
1479static void b43legacy_release_firmware(struct b43legacy_wldev *dev)
1480{
1481 release_firmware(dev->fw.ucode);
1482 dev->fw.ucode = NULL;
1483 release_firmware(dev->fw.pcm);
1484 dev->fw.pcm = NULL;
1485 release_firmware(dev->fw.initvals);
1486 dev->fw.initvals = NULL;
1487 release_firmware(dev->fw.initvals_band);
1488 dev->fw.initvals_band = NULL;
1489}
1490
1491static void b43legacy_print_fw_helptext(struct b43legacy_wl *wl)
1492{
1493 b43legacyerr(wl, "You must go to http://wireless.kernel.org/en/users/"
1494 "Drivers/b43#devicefirmware "
1495 "and download the correct firmware (version 3).\n");
1496}
1497
1498static void b43legacy_fw_cb(const struct firmware *firmware, void *context)
1499{
1500 struct b43legacy_wldev *dev = context;
1501
1502 dev->fwp = firmware;
1503 complete(&dev->fw_load_complete);
1504}
1505
1506static int do_request_fw(struct b43legacy_wldev *dev,
1507 const char *name,
1508 const struct firmware **fw, bool async)
1509{
1510 char path[sizeof(modparam_fwpostfix) + 32];
1511 struct b43legacy_fw_header *hdr;
1512 u32 size;
1513 int err;
1514
1515 if (!name)
1516 return 0;
1517
1518 snprintf(path, ARRAY_SIZE(path),
1519 "b43legacy%s/%s.fw",
1520 modparam_fwpostfix, name);
1521 b43legacyinfo(dev->wl, "Loading firmware %s\n", path);
1522 if (async) {
1523 init_completion(&dev->fw_load_complete);
1524 err = request_firmware_nowait(THIS_MODULE, 1, path,
1525 dev->dev->dev, GFP_KERNEL,
1526 dev, b43legacy_fw_cb);
1527 if (err) {
1528 b43legacyerr(dev->wl, "Unable to load firmware\n");
1529 return err;
1530 }
1531
1532 wait_for_completion(&dev->fw_load_complete);
1533 if (!dev->fwp)
1534 err = -EINVAL;
1535 *fw = dev->fwp;
1536 } else {
1537 err = request_firmware(fw, path, dev->dev->dev);
1538 }
1539 if (err) {
1540 b43legacyerr(dev->wl, "Firmware file \"%s\" not found "
1541 "or load failed.\n", path);
1542 return err;
1543 }
1544 if ((*fw)->size < sizeof(struct b43legacy_fw_header))
1545 goto err_format;
1546 hdr = (struct b43legacy_fw_header *)((*fw)->data);
1547 switch (hdr->type) {
1548 case B43legacy_FW_TYPE_UCODE:
1549 case B43legacy_FW_TYPE_PCM:
1550 size = be32_to_cpu(hdr->size);
1551 if (size != (*fw)->size - sizeof(struct b43legacy_fw_header))
1552 goto err_format;
1553
1554 case B43legacy_FW_TYPE_IV:
1555 if (hdr->ver != 1)
1556 goto err_format;
1557 break;
1558 default:
1559 goto err_format;
1560 }
1561
1562 return err;
1563
1564err_format:
1565 b43legacyerr(dev->wl, "Firmware file \"%s\" format error.\n", path);
1566 return -EPROTO;
1567}
1568
1569static int b43legacy_one_core_attach(struct ssb_device *dev,
1570 struct b43legacy_wl *wl);
1571static void b43legacy_one_core_detach(struct ssb_device *dev);
1572
1573static void b43legacy_request_firmware(struct work_struct *work)
1574{
1575 struct b43legacy_wl *wl = container_of(work,
1576 struct b43legacy_wl, firmware_load);
1577 struct b43legacy_wldev *dev = wl->current_dev;
1578 struct b43legacy_firmware *fw = &dev->fw;
1579 const u8 rev = dev->dev->id.revision;
1580 const char *filename;
1581 int err;
1582
1583 if (!fw->ucode) {
1584 if (rev == 2)
1585 filename = "ucode2";
1586 else if (rev == 4)
1587 filename = "ucode4";
1588 else
1589 filename = "ucode5";
1590 err = do_request_fw(dev, filename, &fw->ucode, true);
1591 if (err)
1592 goto err_load;
1593 }
1594 if (!fw->pcm) {
1595 if (rev < 5)
1596 filename = "pcm4";
1597 else
1598 filename = "pcm5";
1599 err = do_request_fw(dev, filename, &fw->pcm, false);
1600 if (err)
1601 goto err_load;
1602 }
1603 if (!fw->initvals) {
1604 switch (dev->phy.type) {
1605 case B43legacy_PHYTYPE_B:
1606 case B43legacy_PHYTYPE_G:
1607 if ((rev >= 5) && (rev <= 10))
1608 filename = "b0g0initvals5";
1609 else if (rev == 2 || rev == 4)
1610 filename = "b0g0initvals2";
1611 else
1612 goto err_no_initvals;
1613 break;
1614 default:
1615 goto err_no_initvals;
1616 }
1617 err = do_request_fw(dev, filename, &fw->initvals, false);
1618 if (err)
1619 goto err_load;
1620 }
1621 if (!fw->initvals_band) {
1622 switch (dev->phy.type) {
1623 case B43legacy_PHYTYPE_B:
1624 case B43legacy_PHYTYPE_G:
1625 if ((rev >= 5) && (rev <= 10))
1626 filename = "b0g0bsinitvals5";
1627 else if (rev >= 11)
1628 filename = NULL;
1629 else if (rev == 2 || rev == 4)
1630 filename = NULL;
1631 else
1632 goto err_no_initvals;
1633 break;
1634 default:
1635 goto err_no_initvals;
1636 }
1637 err = do_request_fw(dev, filename, &fw->initvals_band, false);
1638 if (err)
1639 goto err_load;
1640 }
1641 err = ieee80211_register_hw(wl->hw);
1642 if (err)
1643 goto err_one_core_detach;
1644 return;
1645
1646err_one_core_detach:
1647 b43legacy_one_core_detach(dev->dev);
1648 goto error;
1649
1650err_load:
1651 b43legacy_print_fw_helptext(dev->wl);
1652 goto error;
1653
1654err_no_initvals:
1655 err = -ENODEV;
1656 b43legacyerr(dev->wl, "No Initial Values firmware file for PHY %u, "
1657 "core rev %u\n", dev->phy.type, rev);
1658 goto error;
1659
1660error:
1661 b43legacy_release_firmware(dev);
1662 return;
1663}
1664
1665static int b43legacy_upload_microcode(struct b43legacy_wldev *dev)
1666{
1667 struct wiphy *wiphy = dev->wl->hw->wiphy;
1668 const size_t hdr_len = sizeof(struct b43legacy_fw_header);
1669 const __be32 *data;
1670 unsigned int i;
1671 unsigned int len;
1672 u16 fwrev;
1673 u16 fwpatch;
1674 u16 fwdate;
1675 u16 fwtime;
1676 u32 tmp, macctl;
1677 int err = 0;
1678
1679
1680 macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
1681 B43legacy_WARN_ON(macctl & B43legacy_MACCTL_PSM_RUN);
1682 macctl |= B43legacy_MACCTL_PSM_JMP0;
1683 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
1684
1685 for (i = 0; i < 64; i++)
1686 b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, i, 0);
1687 for (i = 0; i < 4096; i += 2)
1688 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, i, 0);
1689
1690
1691 data = (__be32 *) (dev->fw.ucode->data + hdr_len);
1692 len = (dev->fw.ucode->size - hdr_len) / sizeof(__be32);
1693 b43legacy_shm_control_word(dev,
1694 B43legacy_SHM_UCODE |
1695 B43legacy_SHM_AUTOINC_W,
1696 0x0000);
1697 for (i = 0; i < len; i++) {
1698 b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA,
1699 be32_to_cpu(data[i]));
1700 udelay(10);
1701 }
1702
1703 if (dev->fw.pcm) {
1704
1705 data = (__be32 *) (dev->fw.pcm->data + hdr_len);
1706 len = (dev->fw.pcm->size - hdr_len) / sizeof(__be32);
1707 b43legacy_shm_control_word(dev, B43legacy_SHM_HW, 0x01EA);
1708 b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA, 0x00004000);
1709
1710 b43legacy_shm_control_word(dev, B43legacy_SHM_HW, 0x01EB);
1711 for (i = 0; i < len; i++) {
1712 b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA,
1713 be32_to_cpu(data[i]));
1714 udelay(10);
1715 }
1716 }
1717
1718 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON,
1719 B43legacy_IRQ_ALL);
1720
1721
1722 macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
1723 macctl &= ~B43legacy_MACCTL_PSM_JMP0;
1724 macctl |= B43legacy_MACCTL_PSM_RUN;
1725 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
1726
1727
1728 i = 0;
1729 while (1) {
1730 tmp = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
1731 if (tmp == B43legacy_IRQ_MAC_SUSPENDED)
1732 break;
1733 i++;
1734 if (i >= B43legacy_IRQWAIT_MAX_RETRIES) {
1735 b43legacyerr(dev->wl, "Microcode not responding\n");
1736 b43legacy_print_fw_helptext(dev->wl);
1737 err = -ENODEV;
1738 goto error;
1739 }
1740 msleep_interruptible(50);
1741 if (signal_pending(current)) {
1742 err = -EINTR;
1743 goto error;
1744 }
1745 }
1746
1747 b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
1748
1749
1750 fwrev = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
1751 B43legacy_SHM_SH_UCODEREV);
1752 fwpatch = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
1753 B43legacy_SHM_SH_UCODEPATCH);
1754 fwdate = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
1755 B43legacy_SHM_SH_UCODEDATE);
1756 fwtime = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
1757 B43legacy_SHM_SH_UCODETIME);
1758
1759 if (fwrev > 0x128) {
1760 b43legacyerr(dev->wl, "YOU ARE TRYING TO LOAD V4 FIRMWARE."
1761 " Only firmware from binary drivers version 3.x"
1762 " is supported. You must change your firmware"
1763 " files.\n");
1764 b43legacy_print_fw_helptext(dev->wl);
1765 err = -EOPNOTSUPP;
1766 goto error;
1767 }
1768 b43legacyinfo(dev->wl, "Loading firmware version 0x%X, patch level %u "
1769 "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", fwrev, fwpatch,
1770 (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
1771 (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F,
1772 fwtime & 0x1F);
1773
1774 dev->fw.rev = fwrev;
1775 dev->fw.patch = fwpatch;
1776
1777 snprintf(wiphy->fw_version, sizeof(wiphy->fw_version), "%u.%u",
1778 dev->fw.rev, dev->fw.patch);
1779 wiphy->hw_version = dev->dev->id.coreid;
1780
1781 return 0;
1782
1783error:
1784 macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
1785 macctl &= ~B43legacy_MACCTL_PSM_RUN;
1786 macctl |= B43legacy_MACCTL_PSM_JMP0;
1787 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
1788
1789 return err;
1790}
1791
1792static int b43legacy_write_initvals(struct b43legacy_wldev *dev,
1793 const struct b43legacy_iv *ivals,
1794 size_t count,
1795 size_t array_size)
1796{
1797 const struct b43legacy_iv *iv;
1798 u16 offset;
1799 size_t i;
1800 bool bit32;
1801
1802 BUILD_BUG_ON(sizeof(struct b43legacy_iv) != 6);
1803 iv = ivals;
1804 for (i = 0; i < count; i++) {
1805 if (array_size < sizeof(iv->offset_size))
1806 goto err_format;
1807 array_size -= sizeof(iv->offset_size);
1808 offset = be16_to_cpu(iv->offset_size);
1809 bit32 = !!(offset & B43legacy_IV_32BIT);
1810 offset &= B43legacy_IV_OFFSET_MASK;
1811 if (offset >= 0x1000)
1812 goto err_format;
1813 if (bit32) {
1814 u32 value;
1815
1816 if (array_size < sizeof(iv->data.d32))
1817 goto err_format;
1818 array_size -= sizeof(iv->data.d32);
1819
1820 value = get_unaligned_be32(&iv->data.d32);
1821 b43legacy_write32(dev, offset, value);
1822
1823 iv = (const struct b43legacy_iv *)((const uint8_t *)iv +
1824 sizeof(__be16) +
1825 sizeof(__be32));
1826 } else {
1827 u16 value;
1828
1829 if (array_size < sizeof(iv->data.d16))
1830 goto err_format;
1831 array_size -= sizeof(iv->data.d16);
1832
1833 value = be16_to_cpu(iv->data.d16);
1834 b43legacy_write16(dev, offset, value);
1835
1836 iv = (const struct b43legacy_iv *)((const uint8_t *)iv +
1837 sizeof(__be16) +
1838 sizeof(__be16));
1839 }
1840 }
1841 if (array_size)
1842 goto err_format;
1843
1844 return 0;
1845
1846err_format:
1847 b43legacyerr(dev->wl, "Initial Values Firmware file-format error.\n");
1848 b43legacy_print_fw_helptext(dev->wl);
1849
1850 return -EPROTO;
1851}
1852
1853static int b43legacy_upload_initvals(struct b43legacy_wldev *dev)
1854{
1855 const size_t hdr_len = sizeof(struct b43legacy_fw_header);
1856 const struct b43legacy_fw_header *hdr;
1857 struct b43legacy_firmware *fw = &dev->fw;
1858 const struct b43legacy_iv *ivals;
1859 size_t count;
1860 int err;
1861
1862 hdr = (const struct b43legacy_fw_header *)(fw->initvals->data);
1863 ivals = (const struct b43legacy_iv *)(fw->initvals->data + hdr_len);
1864 count = be32_to_cpu(hdr->size);
1865 err = b43legacy_write_initvals(dev, ivals, count,
1866 fw->initvals->size - hdr_len);
1867 if (err)
1868 goto out;
1869 if (fw->initvals_band) {
1870 hdr = (const struct b43legacy_fw_header *)
1871 (fw->initvals_band->data);
1872 ivals = (const struct b43legacy_iv *)(fw->initvals_band->data
1873 + hdr_len);
1874 count = be32_to_cpu(hdr->size);
1875 err = b43legacy_write_initvals(dev, ivals, count,
1876 fw->initvals_band->size - hdr_len);
1877 if (err)
1878 goto out;
1879 }
1880out:
1881
1882 return err;
1883}
1884
1885
1886
1887
1888static int b43legacy_gpio_init(struct b43legacy_wldev *dev)
1889{
1890 struct ssb_bus *bus = dev->dev->bus;
1891 struct ssb_device *gpiodev, *pcidev = NULL;
1892 u32 mask;
1893 u32 set;
1894
1895 b43legacy_write32(dev, B43legacy_MMIO_MACCTL,
1896 b43legacy_read32(dev,
1897 B43legacy_MMIO_MACCTL)
1898 & 0xFFFF3FFF);
1899
1900 b43legacy_write16(dev, B43legacy_MMIO_GPIO_MASK,
1901 b43legacy_read16(dev,
1902 B43legacy_MMIO_GPIO_MASK)
1903 | 0x000F);
1904
1905 mask = 0x0000001F;
1906 set = 0x0000000F;
1907 if (dev->dev->bus->chip_id == 0x4301) {
1908 mask |= 0x0060;
1909 set |= 0x0060;
1910 }
1911 if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_PACTRL) {
1912 b43legacy_write16(dev, B43legacy_MMIO_GPIO_MASK,
1913 b43legacy_read16(dev,
1914 B43legacy_MMIO_GPIO_MASK)
1915 | 0x0200);
1916 mask |= 0x0200;
1917 set |= 0x0200;
1918 }
1919 if (dev->dev->id.revision >= 2)
1920 mask |= 0x0010;
1921
1922#ifdef CONFIG_SSB_DRIVER_PCICORE
1923 pcidev = bus->pcicore.dev;
1924#endif
1925 gpiodev = bus->chipco.dev ? : pcidev;
1926 if (!gpiodev)
1927 return 0;
1928 ssb_write32(gpiodev, B43legacy_GPIO_CONTROL,
1929 (ssb_read32(gpiodev, B43legacy_GPIO_CONTROL)
1930 & ~mask) | set);
1931
1932 return 0;
1933}
1934
1935
1936static void b43legacy_gpio_cleanup(struct b43legacy_wldev *dev)
1937{
1938 struct ssb_bus *bus = dev->dev->bus;
1939 struct ssb_device *gpiodev, *pcidev = NULL;
1940
1941#ifdef CONFIG_SSB_DRIVER_PCICORE
1942 pcidev = bus->pcicore.dev;
1943#endif
1944 gpiodev = bus->chipco.dev ? : pcidev;
1945 if (!gpiodev)
1946 return;
1947 ssb_write32(gpiodev, B43legacy_GPIO_CONTROL, 0);
1948}
1949
1950
1951void b43legacy_mac_enable(struct b43legacy_wldev *dev)
1952{
1953 dev->mac_suspended--;
1954 B43legacy_WARN_ON(dev->mac_suspended < 0);
1955 B43legacy_WARN_ON(irqs_disabled());
1956 if (dev->mac_suspended == 0) {
1957 b43legacy_write32(dev, B43legacy_MMIO_MACCTL,
1958 b43legacy_read32(dev,
1959 B43legacy_MMIO_MACCTL)
1960 | B43legacy_MACCTL_ENABLED);
1961 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON,
1962 B43legacy_IRQ_MAC_SUSPENDED);
1963
1964 b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
1965 b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
1966 b43legacy_power_saving_ctl_bits(dev, -1, -1);
1967
1968
1969 spin_lock_irq(&dev->wl->irq_lock);
1970 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK,
1971 dev->irq_mask);
1972 spin_unlock_irq(&dev->wl->irq_lock);
1973 }
1974}
1975
1976
1977void b43legacy_mac_suspend(struct b43legacy_wldev *dev)
1978{
1979 int i;
1980 u32 tmp;
1981
1982 might_sleep();
1983 B43legacy_WARN_ON(irqs_disabled());
1984 B43legacy_WARN_ON(dev->mac_suspended < 0);
1985
1986 if (dev->mac_suspended == 0) {
1987
1988
1989 spin_lock_irq(&dev->wl->irq_lock);
1990 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
1991 spin_unlock_irq(&dev->wl->irq_lock);
1992 b43legacy_synchronize_irq(dev);
1993
1994 b43legacy_power_saving_ctl_bits(dev, -1, 1);
1995 b43legacy_write32(dev, B43legacy_MMIO_MACCTL,
1996 b43legacy_read32(dev,
1997 B43legacy_MMIO_MACCTL)
1998 & ~B43legacy_MACCTL_ENABLED);
1999 b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
2000 for (i = 40; i; i--) {
2001 tmp = b43legacy_read32(dev,
2002 B43legacy_MMIO_GEN_IRQ_REASON);
2003 if (tmp & B43legacy_IRQ_MAC_SUSPENDED)
2004 goto out;
2005 msleep(1);
2006 }
2007 b43legacyerr(dev->wl, "MAC suspend failed\n");
2008 }
2009out:
2010 dev->mac_suspended++;
2011}
2012
2013static void b43legacy_adjust_opmode(struct b43legacy_wldev *dev)
2014{
2015 struct b43legacy_wl *wl = dev->wl;
2016 u32 ctl;
2017 u16 cfp_pretbtt;
2018
2019 ctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
2020
2021 ctl &= ~B43legacy_MACCTL_AP;
2022 ctl &= ~B43legacy_MACCTL_KEEP_CTL;
2023 ctl &= ~B43legacy_MACCTL_KEEP_BADPLCP;
2024 ctl &= ~B43legacy_MACCTL_KEEP_BAD;
2025 ctl &= ~B43legacy_MACCTL_PROMISC;
2026 ctl &= ~B43legacy_MACCTL_BEACPROMISC;
2027 ctl |= B43legacy_MACCTL_INFRA;
2028
2029 if (b43legacy_is_mode(wl, NL80211_IFTYPE_AP))
2030 ctl |= B43legacy_MACCTL_AP;
2031 else if (b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC))
2032 ctl &= ~B43legacy_MACCTL_INFRA;
2033
2034 if (wl->filter_flags & FIF_CONTROL)
2035 ctl |= B43legacy_MACCTL_KEEP_CTL;
2036 if (wl->filter_flags & FIF_FCSFAIL)
2037 ctl |= B43legacy_MACCTL_KEEP_BAD;
2038 if (wl->filter_flags & FIF_PLCPFAIL)
2039 ctl |= B43legacy_MACCTL_KEEP_BADPLCP;
2040 if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
2041 ctl |= B43legacy_MACCTL_BEACPROMISC;
2042
2043
2044
2045
2046 if (dev->dev->id.revision <= 4)
2047 ctl |= B43legacy_MACCTL_PROMISC;
2048
2049 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, ctl);
2050
2051 cfp_pretbtt = 2;
2052 if ((ctl & B43legacy_MACCTL_INFRA) &&
2053 !(ctl & B43legacy_MACCTL_AP)) {
2054 if (dev->dev->bus->chip_id == 0x4306 &&
2055 dev->dev->bus->chip_rev == 3)
2056 cfp_pretbtt = 100;
2057 else
2058 cfp_pretbtt = 50;
2059 }
2060 b43legacy_write16(dev, 0x612, cfp_pretbtt);
2061}
2062
2063static void b43legacy_rate_memory_write(struct b43legacy_wldev *dev,
2064 u16 rate,
2065 int is_ofdm)
2066{
2067 u16 offset;
2068
2069 if (is_ofdm) {
2070 offset = 0x480;
2071 offset += (b43legacy_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
2072 } else {
2073 offset = 0x4C0;
2074 offset += (b43legacy_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
2075 }
2076 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, offset + 0x20,
2077 b43legacy_shm_read16(dev,
2078 B43legacy_SHM_SHARED, offset));
2079}
2080
2081static void b43legacy_rate_memory_init(struct b43legacy_wldev *dev)
2082{
2083 switch (dev->phy.type) {
2084 case B43legacy_PHYTYPE_G:
2085 b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_6MB, 1);
2086 b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_12MB, 1);
2087 b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_18MB, 1);
2088 b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_24MB, 1);
2089 b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_36MB, 1);
2090 b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_48MB, 1);
2091 b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_54MB, 1);
2092
2093 case B43legacy_PHYTYPE_B:
2094 b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_1MB, 0);
2095 b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_2MB, 0);
2096 b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_5MB, 0);
2097 b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_11MB, 0);
2098 break;
2099 default:
2100 B43legacy_BUG_ON(1);
2101 }
2102}
2103
2104
2105static void b43legacy_mgmtframe_txantenna(struct b43legacy_wldev *dev,
2106 int antenna)
2107{
2108 u16 ant = 0;
2109 u16 tmp;
2110
2111 switch (antenna) {
2112 case B43legacy_ANTENNA0:
2113 ant |= B43legacy_TX4_PHY_ANT0;
2114 break;
2115 case B43legacy_ANTENNA1:
2116 ant |= B43legacy_TX4_PHY_ANT1;
2117 break;
2118 case B43legacy_ANTENNA_AUTO:
2119 ant |= B43legacy_TX4_PHY_ANTLAST;
2120 break;
2121 default:
2122 B43legacy_BUG_ON(1);
2123 }
2124
2125
2126
2127
2128
2129 tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
2130 B43legacy_SHM_SH_BEACPHYCTL);
2131 tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant;
2132 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
2133 B43legacy_SHM_SH_BEACPHYCTL, tmp);
2134
2135 tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
2136 B43legacy_SHM_SH_ACKCTSPHYCTL);
2137 tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant;
2138 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
2139 B43legacy_SHM_SH_ACKCTSPHYCTL, tmp);
2140
2141 tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
2142 B43legacy_SHM_SH_PRPHYCTL);
2143 tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant;
2144 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
2145 B43legacy_SHM_SH_PRPHYCTL, tmp);
2146}
2147
2148
2149static void b43legacy_chip_exit(struct b43legacy_wldev *dev)
2150{
2151 b43legacy_radio_turn_off(dev, 1);
2152 b43legacy_gpio_cleanup(dev);
2153
2154}
2155
2156
2157
2158
2159static int b43legacy_chip_init(struct b43legacy_wldev *dev)
2160{
2161 struct b43legacy_phy *phy = &dev->phy;
2162 int err;
2163 int tmp;
2164 u32 value32, macctl;
2165 u16 value16;
2166
2167
2168 macctl = B43legacy_MACCTL_IHR_ENABLED | B43legacy_MACCTL_SHM_ENABLED;
2169 if (dev->phy.gmode)
2170 macctl |= B43legacy_MACCTL_GMODE;
2171 macctl |= B43legacy_MACCTL_INFRA;
2172 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
2173
2174 err = b43legacy_upload_microcode(dev);
2175 if (err)
2176 goto out;
2177
2178 err = b43legacy_gpio_init(dev);
2179 if (err)
2180 goto out;
2181
2182 err = b43legacy_upload_initvals(dev);
2183 if (err)
2184 goto err_gpio_clean;
2185 b43legacy_radio_turn_on(dev);
2186
2187 b43legacy_write16(dev, 0x03E6, 0x0000);
2188 err = b43legacy_phy_init(dev);
2189 if (err)
2190 goto err_radio_off;
2191
2192
2193 tmp = phy->interfmode;
2194 phy->interfmode = B43legacy_INTERFMODE_NONE;
2195 b43legacy_radio_set_interference_mitigation(dev, tmp);
2196
2197 b43legacy_phy_set_antenna_diversity(dev);
2198 b43legacy_mgmtframe_txantenna(dev, B43legacy_ANTENNA_DEFAULT);
2199
2200 if (phy->type == B43legacy_PHYTYPE_B) {
2201 value16 = b43legacy_read16(dev, 0x005E);
2202 value16 |= 0x0004;
2203 b43legacy_write16(dev, 0x005E, value16);
2204 }
2205 b43legacy_write32(dev, 0x0100, 0x01000000);
2206 if (dev->dev->id.revision < 5)
2207 b43legacy_write32(dev, 0x010C, 0x01000000);
2208
2209 value32 = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
2210 value32 &= ~B43legacy_MACCTL_INFRA;
2211 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, value32);
2212 value32 = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
2213 value32 |= B43legacy_MACCTL_INFRA;
2214 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, value32);
2215
2216 if (b43legacy_using_pio(dev)) {
2217 b43legacy_write32(dev, 0x0210, 0x00000100);
2218 b43legacy_write32(dev, 0x0230, 0x00000100);
2219 b43legacy_write32(dev, 0x0250, 0x00000100);
2220 b43legacy_write32(dev, 0x0270, 0x00000100);
2221 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0034,
2222 0x0000);
2223 }
2224
2225
2226
2227 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0074, 0x0000);
2228
2229
2230 b43legacy_adjust_opmode(dev);
2231
2232 if (dev->dev->id.revision < 3) {
2233 b43legacy_write16(dev, 0x060E, 0x0000);
2234 b43legacy_write16(dev, 0x0610, 0x8000);
2235 b43legacy_write16(dev, 0x0604, 0x0000);
2236 b43legacy_write16(dev, 0x0606, 0x0200);
2237 } else {
2238 b43legacy_write32(dev, 0x0188, 0x80000000);
2239 b43legacy_write32(dev, 0x018C, 0x02000000);
2240 }
2241 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, 0x00004000);
2242 b43legacy_write32(dev, B43legacy_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
2243 b43legacy_write32(dev, B43legacy_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
2244 b43legacy_write32(dev, B43legacy_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
2245 b43legacy_write32(dev, B43legacy_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
2246 b43legacy_write32(dev, B43legacy_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
2247 b43legacy_write32(dev, B43legacy_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
2248
2249 value32 = ssb_read32(dev->dev, SSB_TMSLOW);
2250 value32 |= B43legacy_TMSLOW_MACPHYCLKEN;
2251 ssb_write32(dev->dev, SSB_TMSLOW, value32);
2252
2253 b43legacy_write16(dev, B43legacy_MMIO_POWERUP_DELAY,
2254 dev->dev->bus->chipco.fast_pwrup_delay);
2255
2256
2257 atomic_set(&phy->txerr_cnt, B43legacy_PHY_TX_BADNESS_LIMIT);
2258
2259 B43legacy_WARN_ON(err != 0);
2260 b43legacydbg(dev->wl, "Chip initialized\n");
2261out:
2262 return err;
2263
2264err_radio_off:
2265 b43legacy_radio_turn_off(dev, 1);
2266err_gpio_clean:
2267 b43legacy_gpio_cleanup(dev);
2268 goto out;
2269}
2270
2271static void b43legacy_periodic_every120sec(struct b43legacy_wldev *dev)
2272{
2273 struct b43legacy_phy *phy = &dev->phy;
2274
2275 if (phy->type != B43legacy_PHYTYPE_G || phy->rev < 2)
2276 return;
2277
2278 b43legacy_mac_suspend(dev);
2279 b43legacy_phy_lo_g_measure(dev);
2280 b43legacy_mac_enable(dev);
2281}
2282
2283static void b43legacy_periodic_every60sec(struct b43legacy_wldev *dev)
2284{
2285 b43legacy_phy_lo_mark_all_unused(dev);
2286 if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_RSSI) {
2287 b43legacy_mac_suspend(dev);
2288 b43legacy_calc_nrssi_slope(dev);
2289 b43legacy_mac_enable(dev);
2290 }
2291}
2292
2293static void b43legacy_periodic_every30sec(struct b43legacy_wldev *dev)
2294{
2295
2296 b43legacy_calculate_link_quality(dev);
2297}
2298
2299static void b43legacy_periodic_every15sec(struct b43legacy_wldev *dev)
2300{
2301 b43legacy_phy_xmitpower(dev);
2302
2303 atomic_set(&dev->phy.txerr_cnt, B43legacy_PHY_TX_BADNESS_LIMIT);
2304 wmb();
2305}
2306
2307static void do_periodic_work(struct b43legacy_wldev *dev)
2308{
2309 unsigned int state;
2310
2311 state = dev->periodic_state;
2312 if (state % 8 == 0)
2313 b43legacy_periodic_every120sec(dev);
2314 if (state % 4 == 0)
2315 b43legacy_periodic_every60sec(dev);
2316 if (state % 2 == 0)
2317 b43legacy_periodic_every30sec(dev);
2318 b43legacy_periodic_every15sec(dev);
2319}
2320
2321
2322
2323
2324
2325
2326static void b43legacy_periodic_work_handler(struct work_struct *work)
2327{
2328 struct b43legacy_wldev *dev = container_of(work, struct b43legacy_wldev,
2329 periodic_work.work);
2330 struct b43legacy_wl *wl = dev->wl;
2331 unsigned long delay;
2332
2333 mutex_lock(&wl->mutex);
2334
2335 if (unlikely(b43legacy_status(dev) != B43legacy_STAT_STARTED))
2336 goto out;
2337 if (b43legacy_debug(dev, B43legacy_DBG_PWORK_STOP))
2338 goto out_requeue;
2339
2340 do_periodic_work(dev);
2341
2342 dev->periodic_state++;
2343out_requeue:
2344 if (b43legacy_debug(dev, B43legacy_DBG_PWORK_FAST))
2345 delay = msecs_to_jiffies(50);
2346 else
2347 delay = round_jiffies_relative(HZ * 15);
2348 ieee80211_queue_delayed_work(wl->hw, &dev->periodic_work, delay);
2349out:
2350 mutex_unlock(&wl->mutex);
2351}
2352
2353static void b43legacy_periodic_tasks_setup(struct b43legacy_wldev *dev)
2354{
2355 struct delayed_work *work = &dev->periodic_work;
2356
2357 dev->periodic_state = 0;
2358 INIT_DELAYED_WORK(work, b43legacy_periodic_work_handler);
2359 ieee80211_queue_delayed_work(dev->wl->hw, work, 0);
2360}
2361
2362
2363static int b43legacy_validate_chipaccess(struct b43legacy_wldev *dev)
2364{
2365 u32 value;
2366 u32 shm_backup;
2367
2368 shm_backup = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0);
2369 b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, 0xAA5555AA);
2370 if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0) !=
2371 0xAA5555AA)
2372 goto error;
2373 b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, 0x55AAAA55);
2374 if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0) !=
2375 0x55AAAA55)
2376 goto error;
2377 b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, shm_backup);
2378
2379 value = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
2380 if ((value | B43legacy_MACCTL_GMODE) !=
2381 (B43legacy_MACCTL_GMODE | B43legacy_MACCTL_IHR_ENABLED))
2382 goto error;
2383
2384 value = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
2385 if (value)
2386 goto error;
2387
2388 return 0;
2389error:
2390 b43legacyerr(dev->wl, "Failed to validate the chipaccess\n");
2391 return -ENODEV;
2392}
2393
2394static void b43legacy_security_init(struct b43legacy_wldev *dev)
2395{
2396 dev->max_nr_keys = (dev->dev->id.revision >= 5) ? 58 : 20;
2397 B43legacy_WARN_ON(dev->max_nr_keys > ARRAY_SIZE(dev->key));
2398 dev->ktp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
2399 0x0056);
2400
2401
2402
2403 dev->ktp *= 2;
2404 if (dev->dev->id.revision >= 5)
2405
2406 b43legacy_write16(dev, B43legacy_MMIO_RCMTA_COUNT,
2407 dev->max_nr_keys - 8);
2408}
2409
2410#ifdef CONFIG_B43LEGACY_HWRNG
2411static int b43legacy_rng_read(struct hwrng *rng, u32 *data)
2412{
2413 struct b43legacy_wl *wl = (struct b43legacy_wl *)rng->priv;
2414 unsigned long flags;
2415
2416
2417
2418
2419
2420 spin_lock_irqsave(&wl->irq_lock, flags);
2421 *data = b43legacy_read16(wl->current_dev, B43legacy_MMIO_RNG);
2422 spin_unlock_irqrestore(&wl->irq_lock, flags);
2423
2424 return (sizeof(u16));
2425}
2426#endif
2427
2428static void b43legacy_rng_exit(struct b43legacy_wl *wl)
2429{
2430#ifdef CONFIG_B43LEGACY_HWRNG
2431 if (wl->rng_initialized)
2432 hwrng_unregister(&wl->rng);
2433#endif
2434}
2435
2436static int b43legacy_rng_init(struct b43legacy_wl *wl)
2437{
2438 int err = 0;
2439
2440#ifdef CONFIG_B43LEGACY_HWRNG
2441 snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name),
2442 "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy));
2443 wl->rng.name = wl->rng_name;
2444 wl->rng.data_read = b43legacy_rng_read;
2445 wl->rng.priv = (unsigned long)wl;
2446 wl->rng_initialized = 1;
2447 err = hwrng_register(&wl->rng);
2448 if (err) {
2449 wl->rng_initialized = 0;
2450 b43legacyerr(wl, "Failed to register the random "
2451 "number generator (%d)\n", err);
2452 }
2453
2454#endif
2455 return err;
2456}
2457
2458static void b43legacy_tx_work(struct work_struct *work)
2459{
2460 struct b43legacy_wl *wl = container_of(work, struct b43legacy_wl,
2461 tx_work);
2462 struct b43legacy_wldev *dev;
2463 struct sk_buff *skb;
2464 int queue_num;
2465 int err = 0;
2466
2467 mutex_lock(&wl->mutex);
2468 dev = wl->current_dev;
2469 if (unlikely(!dev || b43legacy_status(dev) < B43legacy_STAT_STARTED)) {
2470 mutex_unlock(&wl->mutex);
2471 return;
2472 }
2473
2474 for (queue_num = 0; queue_num < B43legacy_QOS_QUEUE_NUM; queue_num++) {
2475 while (skb_queue_len(&wl->tx_queue[queue_num])) {
2476 skb = skb_dequeue(&wl->tx_queue[queue_num]);
2477 if (b43legacy_using_pio(dev))
2478 err = b43legacy_pio_tx(dev, skb);
2479 else
2480 err = b43legacy_dma_tx(dev, skb);
2481 if (err == -ENOSPC) {
2482 wl->tx_queue_stopped[queue_num] = 1;
2483 ieee80211_stop_queue(wl->hw, queue_num);
2484 skb_queue_head(&wl->tx_queue[queue_num], skb);
2485 break;
2486 }
2487 if (unlikely(err))
2488 dev_kfree_skb(skb);
2489 err = 0;
2490 }
2491
2492 if (!err)
2493 wl->tx_queue_stopped[queue_num] = 0;
2494 }
2495
2496 mutex_unlock(&wl->mutex);
2497}
2498
2499static void b43legacy_op_tx(struct ieee80211_hw *hw,
2500 struct ieee80211_tx_control *control,
2501 struct sk_buff *skb)
2502{
2503 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
2504
2505 if (unlikely(skb->len < 2 + 2 + 6)) {
2506
2507 dev_kfree_skb_any(skb);
2508 return;
2509 }
2510 B43legacy_WARN_ON(skb_shinfo(skb)->nr_frags);
2511
2512 skb_queue_tail(&wl->tx_queue[skb->queue_mapping], skb);
2513 if (!wl->tx_queue_stopped[skb->queue_mapping])
2514 ieee80211_queue_work(wl->hw, &wl->tx_work);
2515 else
2516 ieee80211_stop_queue(wl->hw, skb->queue_mapping);
2517}
2518
2519static int b43legacy_op_conf_tx(struct ieee80211_hw *hw,
2520 struct ieee80211_vif *vif, u16 queue,
2521 const struct ieee80211_tx_queue_params *params)
2522{
2523 return 0;
2524}
2525
2526static int b43legacy_op_get_stats(struct ieee80211_hw *hw,
2527 struct ieee80211_low_level_stats *stats)
2528{
2529 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
2530 unsigned long flags;
2531
2532 spin_lock_irqsave(&wl->irq_lock, flags);
2533 memcpy(stats, &wl->ieee_stats, sizeof(*stats));
2534 spin_unlock_irqrestore(&wl->irq_lock, flags);
2535
2536 return 0;
2537}
2538
2539static const char *phymode_to_string(unsigned int phymode)
2540{
2541 switch (phymode) {
2542 case B43legacy_PHYMODE_B:
2543 return "B";
2544 case B43legacy_PHYMODE_G:
2545 return "G";
2546 default:
2547 B43legacy_BUG_ON(1);
2548 }
2549 return "";
2550}
2551
2552static int find_wldev_for_phymode(struct b43legacy_wl *wl,
2553 unsigned int phymode,
2554 struct b43legacy_wldev **dev,
2555 bool *gmode)
2556{
2557 struct b43legacy_wldev *d;
2558
2559 list_for_each_entry(d, &wl->devlist, list) {
2560 if (d->phy.possible_phymodes & phymode) {
2561
2562
2563 *gmode = true;
2564 *dev = d;
2565
2566 return 0;
2567 }
2568 }
2569
2570 return -ESRCH;
2571}
2572
2573static void b43legacy_put_phy_into_reset(struct b43legacy_wldev *dev)
2574{
2575 struct ssb_device *sdev = dev->dev;
2576 u32 tmslow;
2577
2578 tmslow = ssb_read32(sdev, SSB_TMSLOW);
2579 tmslow &= ~B43legacy_TMSLOW_GMODE;
2580 tmslow |= B43legacy_TMSLOW_PHYRESET;
2581 tmslow |= SSB_TMSLOW_FGC;
2582 ssb_write32(sdev, SSB_TMSLOW, tmslow);
2583 msleep(1);
2584
2585 tmslow = ssb_read32(sdev, SSB_TMSLOW);
2586 tmslow &= ~SSB_TMSLOW_FGC;
2587 tmslow |= B43legacy_TMSLOW_PHYRESET;
2588 ssb_write32(sdev, SSB_TMSLOW, tmslow);
2589 msleep(1);
2590}
2591
2592
2593static int b43legacy_switch_phymode(struct b43legacy_wl *wl,
2594 unsigned int new_mode)
2595{
2596 struct b43legacy_wldev *uninitialized_var(up_dev);
2597 struct b43legacy_wldev *down_dev;
2598 int err;
2599 bool gmode = false;
2600 int prev_status;
2601
2602 err = find_wldev_for_phymode(wl, new_mode, &up_dev, &gmode);
2603 if (err) {
2604 b43legacyerr(wl, "Could not find a device for %s-PHY mode\n",
2605 phymode_to_string(new_mode));
2606 return err;
2607 }
2608 if ((up_dev == wl->current_dev) &&
2609 (!!wl->current_dev->phy.gmode == !!gmode))
2610
2611 return 0;
2612 b43legacydbg(wl, "Reconfiguring PHYmode to %s-PHY\n",
2613 phymode_to_string(new_mode));
2614 down_dev = wl->current_dev;
2615
2616 prev_status = b43legacy_status(down_dev);
2617
2618 if (prev_status >= B43legacy_STAT_STARTED)
2619 b43legacy_wireless_core_stop(down_dev);
2620 if (prev_status >= B43legacy_STAT_INITIALIZED)
2621 b43legacy_wireless_core_exit(down_dev);
2622
2623 if (down_dev != up_dev)
2624
2625
2626 b43legacy_put_phy_into_reset(down_dev);
2627
2628
2629 up_dev->phy.gmode = gmode;
2630 if (prev_status >= B43legacy_STAT_INITIALIZED) {
2631 err = b43legacy_wireless_core_init(up_dev);
2632 if (err) {
2633 b43legacyerr(wl, "Fatal: Could not initialize device"
2634 " for newly selected %s-PHY mode\n",
2635 phymode_to_string(new_mode));
2636 goto init_failure;
2637 }
2638 }
2639 if (prev_status >= B43legacy_STAT_STARTED) {
2640 err = b43legacy_wireless_core_start(up_dev);
2641 if (err) {
2642 b43legacyerr(wl, "Fatal: Could not start device for "
2643 "newly selected %s-PHY mode\n",
2644 phymode_to_string(new_mode));
2645 b43legacy_wireless_core_exit(up_dev);
2646 goto init_failure;
2647 }
2648 }
2649 B43legacy_WARN_ON(b43legacy_status(up_dev) != prev_status);
2650
2651 b43legacy_shm_write32(up_dev, B43legacy_SHM_SHARED, 0x003E, 0);
2652
2653 wl->current_dev = up_dev;
2654
2655 return 0;
2656init_failure:
2657
2658 wl->current_dev = NULL;
2659 return err;
2660}
2661
2662
2663static void b43legacy_set_retry_limits(struct b43legacy_wldev *dev,
2664 unsigned int short_retry,
2665 unsigned int long_retry)
2666{
2667
2668
2669 short_retry = min(short_retry, (unsigned int)0xF);
2670 long_retry = min(long_retry, (unsigned int)0xF);
2671
2672 b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0006, short_retry);
2673 b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0007, long_retry);
2674}
2675
2676static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
2677 u32 changed)
2678{
2679 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
2680 struct b43legacy_wldev *dev;
2681 struct b43legacy_phy *phy;
2682 struct ieee80211_conf *conf = &hw->conf;
2683 unsigned long flags;
2684 unsigned int new_phymode = 0xFFFF;
2685 int antenna_tx;
2686 int err = 0;
2687
2688 antenna_tx = B43legacy_ANTENNA_DEFAULT;
2689
2690 mutex_lock(&wl->mutex);
2691 dev = wl->current_dev;
2692 phy = &dev->phy;
2693
2694 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
2695 b43legacy_set_retry_limits(dev,
2696 conf->short_frame_max_tx_count,
2697 conf->long_frame_max_tx_count);
2698 changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS;
2699 if (!changed)
2700 goto out_unlock_mutex;
2701
2702
2703 switch (conf->chandef.chan->band) {
2704 case NL80211_BAND_2GHZ:
2705 if (phy->type == B43legacy_PHYTYPE_B)
2706 new_phymode = B43legacy_PHYMODE_B;
2707 else
2708 new_phymode = B43legacy_PHYMODE_G;
2709 break;
2710 default:
2711 B43legacy_WARN_ON(1);
2712 }
2713 err = b43legacy_switch_phymode(wl, new_phymode);
2714 if (err)
2715 goto out_unlock_mutex;
2716
2717
2718
2719
2720 spin_lock_irqsave(&wl->irq_lock, flags);
2721 if (b43legacy_status(dev) < B43legacy_STAT_STARTED) {
2722 spin_unlock_irqrestore(&wl->irq_lock, flags);
2723 goto out_unlock_mutex;
2724 }
2725 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
2726 spin_unlock_irqrestore(&wl->irq_lock, flags);
2727 b43legacy_synchronize_irq(dev);
2728
2729
2730
2731 if (conf->chandef.chan->hw_value != phy->channel)
2732 b43legacy_radio_selectchannel(dev, conf->chandef.chan->hw_value,
2733 0);
2734
2735 dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_MONITOR);
2736
2737
2738 if (conf->power_level != 0) {
2739 if (conf->power_level != phy->power_level) {
2740 phy->power_level = conf->power_level;
2741 b43legacy_phy_xmitpower(dev);
2742 }
2743 }
2744
2745
2746 b43legacy_mgmtframe_txantenna(dev, antenna_tx);
2747
2748 if (wl->radio_enabled != phy->radio_on) {
2749 if (wl->radio_enabled) {
2750 b43legacy_radio_turn_on(dev);
2751 b43legacyinfo(dev->wl, "Radio turned on by software\n");
2752 if (!dev->radio_hw_enable)
2753 b43legacyinfo(dev->wl, "The hardware RF-kill"
2754 " button still turns the radio"
2755 " physically off. Press the"
2756 " button to turn it on.\n");
2757 } else {
2758 b43legacy_radio_turn_off(dev, 0);
2759 b43legacyinfo(dev->wl, "Radio turned off by"
2760 " software\n");
2761 }
2762 }
2763
2764 spin_lock_irqsave(&wl->irq_lock, flags);
2765 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
2766 spin_unlock_irqrestore(&wl->irq_lock, flags);
2767out_unlock_mutex:
2768 mutex_unlock(&wl->mutex);
2769
2770 return err;
2771}
2772
2773static void b43legacy_update_basic_rates(struct b43legacy_wldev *dev, u32 brates)
2774{
2775 struct ieee80211_supported_band *sband =
2776 dev->wl->hw->wiphy->bands[NL80211_BAND_2GHZ];
2777 struct ieee80211_rate *rate;
2778 int i;
2779 u16 basic, direct, offset, basic_offset, rateptr;
2780
2781 for (i = 0; i < sband->n_bitrates; i++) {
2782 rate = &sband->bitrates[i];
2783
2784 if (b43legacy_is_cck_rate(rate->hw_value)) {
2785 direct = B43legacy_SHM_SH_CCKDIRECT;
2786 basic = B43legacy_SHM_SH_CCKBASIC;
2787 offset = b43legacy_plcp_get_ratecode_cck(rate->hw_value);
2788 offset &= 0xF;
2789 } else {
2790 direct = B43legacy_SHM_SH_OFDMDIRECT;
2791 basic = B43legacy_SHM_SH_OFDMBASIC;
2792 offset = b43legacy_plcp_get_ratecode_ofdm(rate->hw_value);
2793 offset &= 0xF;
2794 }
2795
2796 rate = ieee80211_get_response_rate(sband, brates, rate->bitrate);
2797
2798 if (b43legacy_is_cck_rate(rate->hw_value)) {
2799 basic_offset = b43legacy_plcp_get_ratecode_cck(rate->hw_value);
2800 basic_offset &= 0xF;
2801 } else {
2802 basic_offset = b43legacy_plcp_get_ratecode_ofdm(rate->hw_value);
2803 basic_offset &= 0xF;
2804 }
2805
2806
2807
2808
2809
2810 rateptr = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
2811 direct + 2 * basic_offset);
2812
2813 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
2814 basic + 2 * offset, rateptr);
2815 }
2816}
2817
2818static void b43legacy_op_bss_info_changed(struct ieee80211_hw *hw,
2819 struct ieee80211_vif *vif,
2820 struct ieee80211_bss_conf *conf,
2821 u32 changed)
2822{
2823 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
2824 struct b43legacy_wldev *dev;
2825 unsigned long flags;
2826
2827 mutex_lock(&wl->mutex);
2828 B43legacy_WARN_ON(wl->vif != vif);
2829
2830 dev = wl->current_dev;
2831
2832
2833
2834
2835 spin_lock_irqsave(&wl->irq_lock, flags);
2836 if (b43legacy_status(dev) < B43legacy_STAT_STARTED) {
2837 spin_unlock_irqrestore(&wl->irq_lock, flags);
2838 goto out_unlock_mutex;
2839 }
2840 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
2841
2842 if (changed & BSS_CHANGED_BSSID) {
2843 b43legacy_synchronize_irq(dev);
2844
2845 if (conf->bssid)
2846 memcpy(wl->bssid, conf->bssid, ETH_ALEN);
2847 else
2848 eth_zero_addr(wl->bssid);
2849 }
2850
2851 if (b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED) {
2852 if (changed & BSS_CHANGED_BEACON &&
2853 (b43legacy_is_mode(wl, NL80211_IFTYPE_AP) ||
2854 b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC)))
2855 b43legacy_update_templates(wl);
2856
2857 if (changed & BSS_CHANGED_BSSID)
2858 b43legacy_write_mac_bssid_templates(dev);
2859 }
2860 spin_unlock_irqrestore(&wl->irq_lock, flags);
2861
2862 b43legacy_mac_suspend(dev);
2863
2864 if (changed & BSS_CHANGED_BEACON_INT &&
2865 (b43legacy_is_mode(wl, NL80211_IFTYPE_AP) ||
2866 b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC)))
2867 b43legacy_set_beacon_int(dev, conf->beacon_int);
2868
2869 if (changed & BSS_CHANGED_BASIC_RATES)
2870 b43legacy_update_basic_rates(dev, conf->basic_rates);
2871
2872 if (changed & BSS_CHANGED_ERP_SLOT) {
2873 if (conf->use_short_slot)
2874 b43legacy_short_slot_timing_enable(dev);
2875 else
2876 b43legacy_short_slot_timing_disable(dev);
2877 }
2878
2879 b43legacy_mac_enable(dev);
2880
2881 spin_lock_irqsave(&wl->irq_lock, flags);
2882 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
2883
2884 spin_unlock_irqrestore(&wl->irq_lock, flags);
2885 out_unlock_mutex:
2886 mutex_unlock(&wl->mutex);
2887}
2888
2889static void b43legacy_op_configure_filter(struct ieee80211_hw *hw,
2890 unsigned int changed,
2891 unsigned int *fflags,u64 multicast)
2892{
2893 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
2894 struct b43legacy_wldev *dev = wl->current_dev;
2895 unsigned long flags;
2896
2897 if (!dev) {
2898 *fflags = 0;
2899 return;
2900 }
2901
2902 spin_lock_irqsave(&wl->irq_lock, flags);
2903 *fflags &= FIF_ALLMULTI |
2904 FIF_FCSFAIL |
2905 FIF_PLCPFAIL |
2906 FIF_CONTROL |
2907 FIF_OTHER_BSS |
2908 FIF_BCN_PRBRESP_PROMISC;
2909
2910 changed &= FIF_ALLMULTI |
2911 FIF_FCSFAIL |
2912 FIF_PLCPFAIL |
2913 FIF_CONTROL |
2914 FIF_OTHER_BSS |
2915 FIF_BCN_PRBRESP_PROMISC;
2916
2917 wl->filter_flags = *fflags;
2918
2919 if (changed && b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED)
2920 b43legacy_adjust_opmode(dev);
2921 spin_unlock_irqrestore(&wl->irq_lock, flags);
2922}
2923
2924
2925static void b43legacy_wireless_core_stop(struct b43legacy_wldev *dev)
2926{
2927 struct b43legacy_wl *wl = dev->wl;
2928 unsigned long flags;
2929 int queue_num;
2930
2931 if (b43legacy_status(dev) < B43legacy_STAT_STARTED)
2932 return;
2933
2934
2935
2936
2937 spin_lock_irqsave(&wl->irq_lock, flags);
2938 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
2939 b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_MASK);
2940 spin_unlock_irqrestore(&wl->irq_lock, flags);
2941 b43legacy_synchronize_irq(dev);
2942
2943 b43legacy_set_status(dev, B43legacy_STAT_INITIALIZED);
2944
2945 mutex_unlock(&wl->mutex);
2946
2947
2948 cancel_delayed_work_sync(&dev->periodic_work);
2949 cancel_work_sync(&wl->tx_work);
2950 mutex_lock(&wl->mutex);
2951
2952
2953 for (queue_num = 0; queue_num < B43legacy_QOS_QUEUE_NUM; queue_num++) {
2954 while (skb_queue_len(&wl->tx_queue[queue_num]))
2955 dev_kfree_skb(skb_dequeue(&wl->tx_queue[queue_num]));
2956 }
2957
2958b43legacy_mac_suspend(dev);
2959 free_irq(dev->dev->irq, dev);
2960 b43legacydbg(wl, "Wireless interface stopped\n");
2961}
2962
2963
2964static int b43legacy_wireless_core_start(struct b43legacy_wldev *dev)
2965{
2966 int err;
2967
2968 B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_INITIALIZED);
2969
2970 drain_txstatus_queue(dev);
2971 err = request_irq(dev->dev->irq, b43legacy_interrupt_handler,
2972 IRQF_SHARED, KBUILD_MODNAME, dev);
2973 if (err) {
2974 b43legacyerr(dev->wl, "Cannot request IRQ-%d\n",
2975 dev->dev->irq);
2976 goto out;
2977 }
2978
2979 ieee80211_wake_queues(dev->wl->hw);
2980 b43legacy_set_status(dev, B43legacy_STAT_STARTED);
2981
2982
2983 b43legacy_mac_enable(dev);
2984 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
2985
2986
2987 b43legacy_periodic_tasks_setup(dev);
2988
2989 b43legacydbg(dev->wl, "Wireless interface started\n");
2990out:
2991 return err;
2992}
2993
2994
2995static int b43legacy_phy_versioning(struct b43legacy_wldev *dev)
2996{
2997 struct b43legacy_phy *phy = &dev->phy;
2998 u32 tmp;
2999 u8 analog_type;
3000 u8 phy_type;
3001 u8 phy_rev;
3002 u16 radio_manuf;
3003 u16 radio_ver;
3004 u16 radio_rev;
3005 int unsupported = 0;
3006
3007
3008 tmp = b43legacy_read16(dev, B43legacy_MMIO_PHY_VER);
3009 analog_type = (tmp & B43legacy_PHYVER_ANALOG)
3010 >> B43legacy_PHYVER_ANALOG_SHIFT;
3011 phy_type = (tmp & B43legacy_PHYVER_TYPE) >> B43legacy_PHYVER_TYPE_SHIFT;
3012 phy_rev = (tmp & B43legacy_PHYVER_VERSION);
3013 switch (phy_type) {
3014 case B43legacy_PHYTYPE_B:
3015 if (phy_rev != 2 && phy_rev != 4
3016 && phy_rev != 6 && phy_rev != 7)
3017 unsupported = 1;
3018 break;
3019 case B43legacy_PHYTYPE_G:
3020 if (phy_rev > 8)
3021 unsupported = 1;
3022 break;
3023 default:
3024 unsupported = 1;
3025 }
3026 if (unsupported) {
3027 b43legacyerr(dev->wl, "FOUND UNSUPPORTED PHY "
3028 "(Analog %u, Type %u, Revision %u)\n",
3029 analog_type, phy_type, phy_rev);
3030 return -EOPNOTSUPP;
3031 }
3032 b43legacydbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n",
3033 analog_type, phy_type, phy_rev);
3034
3035
3036
3037 if (dev->dev->bus->chip_id == 0x4317) {
3038 if (dev->dev->bus->chip_rev == 0)
3039 tmp = 0x3205017F;
3040 else if (dev->dev->bus->chip_rev == 1)
3041 tmp = 0x4205017F;
3042 else
3043 tmp = 0x5205017F;
3044 } else {
3045 b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL,
3046 B43legacy_RADIOCTL_ID);
3047 tmp = b43legacy_read16(dev, B43legacy_MMIO_RADIO_DATA_HIGH);
3048 tmp <<= 16;
3049 b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL,
3050 B43legacy_RADIOCTL_ID);
3051 tmp |= b43legacy_read16(dev, B43legacy_MMIO_RADIO_DATA_LOW);
3052 }
3053 radio_manuf = (tmp & 0x00000FFF);
3054 radio_ver = (tmp & 0x0FFFF000) >> 12;
3055 radio_rev = (tmp & 0xF0000000) >> 28;
3056 switch (phy_type) {
3057 case B43legacy_PHYTYPE_B:
3058 if ((radio_ver & 0xFFF0) != 0x2050)
3059 unsupported = 1;
3060 break;
3061 case B43legacy_PHYTYPE_G:
3062 if (radio_ver != 0x2050)
3063 unsupported = 1;
3064 break;
3065 default:
3066 B43legacy_BUG_ON(1);
3067 }
3068 if (unsupported) {
3069 b43legacyerr(dev->wl, "FOUND UNSUPPORTED RADIO "
3070 "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
3071 radio_manuf, radio_ver, radio_rev);
3072 return -EOPNOTSUPP;
3073 }
3074 b43legacydbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X,"
3075 " Revision %u\n", radio_manuf, radio_ver, radio_rev);
3076
3077
3078 phy->radio_manuf = radio_manuf;
3079 phy->radio_ver = radio_ver;
3080 phy->radio_rev = radio_rev;
3081
3082 phy->analog = analog_type;
3083 phy->type = phy_type;
3084 phy->rev = phy_rev;
3085
3086 return 0;
3087}
3088
3089static void setup_struct_phy_for_init(struct b43legacy_wldev *dev,
3090 struct b43legacy_phy *phy)
3091{
3092 struct b43legacy_lopair *lo;
3093 int i;
3094
3095 memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
3096 memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
3097
3098
3099
3100 dev->radio_hw_enable = true;
3101
3102 phy->savedpctlreg = 0xFFFF;
3103 phy->aci_enable = false;
3104 phy->aci_wlan_automatic = false;
3105 phy->aci_hw_rssi = false;
3106
3107 lo = phy->_lo_pairs;
3108 if (lo)
3109 memset(lo, 0, sizeof(struct b43legacy_lopair) *
3110 B43legacy_LO_COUNT);
3111 phy->max_lb_gain = 0;
3112 phy->trsw_rx_gain = 0;
3113
3114
3115 phy->bbatt = b43legacy_default_baseband_attenuation(dev);
3116 phy->rfatt = b43legacy_default_radio_attenuation(dev);
3117 phy->txctl1 = b43legacy_default_txctl1(dev);
3118 phy->txpwr_offset = 0;
3119
3120
3121 phy->nrssislope = 0;
3122 for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++)
3123 phy->nrssi[i] = -1000;
3124 for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++)
3125 phy->nrssi_lt[i] = i;
3126
3127 phy->lofcal = 0xFFFF;
3128 phy->initval = 0xFFFF;
3129
3130 phy->interfmode = B43legacy_INTERFMODE_NONE;
3131 phy->channel = 0xFF;
3132}
3133
3134static void setup_struct_wldev_for_init(struct b43legacy_wldev *dev)
3135{
3136
3137 dev->dfq_valid = false;
3138
3139
3140 memset(&dev->stats, 0, sizeof(dev->stats));
3141
3142 setup_struct_phy_for_init(dev, &dev->phy);
3143
3144
3145 dev->irq_reason = 0;
3146 memset(dev->dma_reason, 0, sizeof(dev->dma_reason));
3147 dev->irq_mask = B43legacy_IRQ_MASKTEMPLATE;
3148
3149 dev->mac_suspended = 1;
3150
3151
3152 memset(&dev->noisecalc, 0, sizeof(dev->noisecalc));
3153}
3154
3155static void b43legacy_set_synth_pu_delay(struct b43legacy_wldev *dev,
3156 bool idle) {
3157 u16 pu_delay = 1050;
3158
3159 if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_ADHOC) || idle)
3160 pu_delay = 500;
3161 if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8))
3162 pu_delay = max(pu_delay, (u16)2400);
3163
3164 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
3165 B43legacy_SHM_SH_SPUWKUP, pu_delay);
3166}
3167
3168
3169static void b43legacy_set_pretbtt(struct b43legacy_wldev *dev)
3170{
3171 u16 pretbtt;
3172
3173
3174 if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_ADHOC))
3175 pretbtt = 2;
3176 else
3177 pretbtt = 250;
3178 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
3179 B43legacy_SHM_SH_PRETBTT, pretbtt);
3180 b43legacy_write16(dev, B43legacy_MMIO_TSF_CFP_PRETBTT, pretbtt);
3181}
3182
3183
3184
3185static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev)
3186{
3187 struct b43legacy_phy *phy = &dev->phy;
3188 u32 macctl;
3189
3190 B43legacy_WARN_ON(b43legacy_status(dev) > B43legacy_STAT_INITIALIZED);
3191 if (b43legacy_status(dev) != B43legacy_STAT_INITIALIZED)
3192 return;
3193 b43legacy_set_status(dev, B43legacy_STAT_UNINIT);
3194
3195
3196 macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
3197 macctl &= ~B43legacy_MACCTL_PSM_RUN;
3198 macctl |= B43legacy_MACCTL_PSM_JMP0;
3199 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
3200
3201 b43legacy_leds_exit(dev);
3202 b43legacy_rng_exit(dev->wl);
3203 b43legacy_pio_free(dev);
3204 b43legacy_dma_free(dev);
3205 b43legacy_chip_exit(dev);
3206 b43legacy_radio_turn_off(dev, 1);
3207 b43legacy_switch_analog(dev, 0);
3208 if (phy->dyn_tssi_tbl)
3209 kfree(phy->tssi2dbm);
3210 kfree(phy->lo_control);
3211 phy->lo_control = NULL;
3212 if (dev->wl->current_beacon) {
3213 dev_kfree_skb_any(dev->wl->current_beacon);
3214 dev->wl->current_beacon = NULL;
3215 }
3216
3217 ssb_device_disable(dev->dev, 0);
3218 ssb_bus_may_powerdown(dev->dev->bus);
3219}
3220
3221static void prepare_phy_data_for_init(struct b43legacy_wldev *dev)
3222{
3223 struct b43legacy_phy *phy = &dev->phy;
3224 int i;
3225
3226
3227 phy->bbatt = b43legacy_default_baseband_attenuation(dev);
3228 phy->rfatt = b43legacy_default_radio_attenuation(dev);
3229 phy->txctl1 = b43legacy_default_txctl1(dev);
3230 phy->txctl2 = 0xFFFF;
3231 phy->txpwr_offset = 0;
3232
3233
3234 phy->nrssislope = 0;
3235 for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++)
3236 phy->nrssi[i] = -1000;
3237 for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++)
3238 phy->nrssi_lt[i] = i;
3239
3240 phy->lofcal = 0xFFFF;
3241 phy->initval = 0xFFFF;
3242
3243 phy->aci_enable = false;
3244 phy->aci_wlan_automatic = false;
3245 phy->aci_hw_rssi = false;
3246
3247 phy->antenna_diversity = 0xFFFF;
3248 memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
3249 memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
3250
3251
3252 phy->calibrated = 0;
3253
3254 if (phy->_lo_pairs)
3255 memset(phy->_lo_pairs, 0,
3256 sizeof(struct b43legacy_lopair) * B43legacy_LO_COUNT);
3257 memset(phy->loopback_gain, 0, sizeof(phy->loopback_gain));
3258}
3259
3260
3261static int b43legacy_wireless_core_init(struct b43legacy_wldev *dev)
3262{
3263 struct b43legacy_wl *wl = dev->wl;
3264 struct ssb_bus *bus = dev->dev->bus;
3265 struct b43legacy_phy *phy = &dev->phy;
3266 struct ssb_sprom *sprom = &dev->dev->bus->sprom;
3267 int err;
3268 u32 hf;
3269 u32 tmp;
3270
3271 B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_UNINIT);
3272
3273 err = ssb_bus_powerup(bus, 0);
3274 if (err)
3275 goto out;
3276 if (!ssb_device_is_enabled(dev->dev)) {
3277 tmp = phy->gmode ? B43legacy_TMSLOW_GMODE : 0;
3278 b43legacy_wireless_core_reset(dev, tmp);
3279 }
3280
3281 if ((phy->type == B43legacy_PHYTYPE_B) ||
3282 (phy->type == B43legacy_PHYTYPE_G)) {
3283 phy->_lo_pairs = kcalloc(B43legacy_LO_COUNT,
3284 sizeof(struct b43legacy_lopair),
3285 GFP_KERNEL);
3286 if (!phy->_lo_pairs)
3287 return -ENOMEM;
3288 }
3289 setup_struct_wldev_for_init(dev);
3290
3291 err = b43legacy_phy_init_tssi2dbm_table(dev);
3292 if (err)
3293 goto err_kfree_lo_control;
3294
3295
3296 ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev);
3297
3298 prepare_phy_data_for_init(dev);
3299 b43legacy_phy_calibrate(dev);
3300 err = b43legacy_chip_init(dev);
3301 if (err)
3302 goto err_kfree_tssitbl;
3303 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
3304 B43legacy_SHM_SH_WLCOREREV,
3305 dev->dev->id.revision);
3306 hf = b43legacy_hf_read(dev);
3307 if (phy->type == B43legacy_PHYTYPE_G) {
3308 hf |= B43legacy_HF_SYMW;
3309 if (phy->rev == 1)
3310 hf |= B43legacy_HF_GDCW;
3311 if (sprom->boardflags_lo & B43legacy_BFL_PACTRL)
3312 hf |= B43legacy_HF_OFDMPABOOST;
3313 } else if (phy->type == B43legacy_PHYTYPE_B) {
3314 hf |= B43legacy_HF_SYMW;
3315 if (phy->rev >= 2 && phy->radio_ver == 0x2050)
3316 hf &= ~B43legacy_HF_GDCW;
3317 }
3318 b43legacy_hf_write(dev, hf);
3319
3320 b43legacy_set_retry_limits(dev,
3321 B43legacy_DEFAULT_SHORT_RETRY_LIMIT,
3322 B43legacy_DEFAULT_LONG_RETRY_LIMIT);
3323
3324 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
3325 0x0044, 3);
3326 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
3327 0x0046, 2);
3328
3329
3330
3331
3332
3333 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
3334 B43legacy_SHM_SH_PRMAXTIME, 1);
3335
3336 b43legacy_rate_memory_init(dev);
3337
3338
3339 if (phy->type == B43legacy_PHYTYPE_B)
3340 b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS,
3341 0x0003, 31);
3342 else
3343 b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS,
3344 0x0003, 15);
3345
3346 b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS,
3347 0x0004, 1023);
3348
3349 do {
3350 if (b43legacy_using_pio(dev))
3351 err = b43legacy_pio_init(dev);
3352 else {
3353 err = b43legacy_dma_init(dev);
3354 if (!err)
3355 b43legacy_qos_init(dev);
3356 }
3357 } while (err == -EAGAIN);
3358 if (err)
3359 goto err_chip_exit;
3360
3361 b43legacy_set_synth_pu_delay(dev, 1);
3362
3363 ssb_bus_powerup(bus, 1);
3364 b43legacy_upload_card_macaddress(dev);
3365 b43legacy_security_init(dev);
3366 b43legacy_rng_init(wl);
3367
3368 ieee80211_wake_queues(dev->wl->hw);
3369 b43legacy_set_status(dev, B43legacy_STAT_INITIALIZED);
3370
3371 b43legacy_leds_init(dev);
3372out:
3373 return err;
3374
3375err_chip_exit:
3376 b43legacy_chip_exit(dev);
3377err_kfree_tssitbl:
3378 if (phy->dyn_tssi_tbl)
3379 kfree(phy->tssi2dbm);
3380err_kfree_lo_control:
3381 kfree(phy->lo_control);
3382 phy->lo_control = NULL;
3383 ssb_bus_may_powerdown(bus);
3384 B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_UNINIT);
3385 return err;
3386}
3387
3388static int b43legacy_op_add_interface(struct ieee80211_hw *hw,
3389 struct ieee80211_vif *vif)
3390{
3391 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
3392 struct b43legacy_wldev *dev;
3393 unsigned long flags;
3394 int err = -EOPNOTSUPP;
3395
3396
3397
3398 if (vif->type != NL80211_IFTYPE_AP &&
3399 vif->type != NL80211_IFTYPE_STATION &&
3400 vif->type != NL80211_IFTYPE_WDS &&
3401 vif->type != NL80211_IFTYPE_ADHOC)
3402 return -EOPNOTSUPP;
3403
3404 mutex_lock(&wl->mutex);
3405 if (wl->operating)
3406 goto out_mutex_unlock;
3407
3408 b43legacydbg(wl, "Adding Interface type %d\n", vif->type);
3409
3410 dev = wl->current_dev;
3411 wl->operating = true;
3412 wl->vif = vif;
3413 wl->if_type = vif->type;
3414 memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
3415
3416 spin_lock_irqsave(&wl->irq_lock, flags);
3417 b43legacy_adjust_opmode(dev);
3418 b43legacy_set_pretbtt(dev);
3419 b43legacy_set_synth_pu_delay(dev, 0);
3420 b43legacy_upload_card_macaddress(dev);
3421 spin_unlock_irqrestore(&wl->irq_lock, flags);
3422
3423 err = 0;
3424 out_mutex_unlock:
3425 mutex_unlock(&wl->mutex);
3426
3427 return err;
3428}
3429
3430static void b43legacy_op_remove_interface(struct ieee80211_hw *hw,
3431 struct ieee80211_vif *vif)
3432{
3433 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
3434 struct b43legacy_wldev *dev = wl->current_dev;
3435 unsigned long flags;
3436
3437 b43legacydbg(wl, "Removing Interface type %d\n", vif->type);
3438
3439 mutex_lock(&wl->mutex);
3440
3441 B43legacy_WARN_ON(!wl->operating);
3442 B43legacy_WARN_ON(wl->vif != vif);
3443 wl->vif = NULL;
3444
3445 wl->operating = false;
3446
3447 spin_lock_irqsave(&wl->irq_lock, flags);
3448 b43legacy_adjust_opmode(dev);
3449 eth_zero_addr(wl->mac_addr);
3450 b43legacy_upload_card_macaddress(dev);
3451 spin_unlock_irqrestore(&wl->irq_lock, flags);
3452
3453 mutex_unlock(&wl->mutex);
3454}
3455
3456static int b43legacy_op_start(struct ieee80211_hw *hw)
3457{
3458 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
3459 struct b43legacy_wldev *dev = wl->current_dev;
3460 int did_init = 0;
3461 int err = 0;
3462
3463
3464
3465
3466 eth_zero_addr(wl->bssid);
3467 eth_zero_addr(wl->mac_addr);
3468 wl->filter_flags = 0;
3469 wl->beacon0_uploaded = false;
3470 wl->beacon1_uploaded = false;
3471 wl->beacon_templates_virgin = true;
3472 wl->radio_enabled = true;
3473
3474 mutex_lock(&wl->mutex);
3475
3476 if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED) {
3477 err = b43legacy_wireless_core_init(dev);
3478 if (err)
3479 goto out_mutex_unlock;
3480 did_init = 1;
3481 }
3482
3483 if (b43legacy_status(dev) < B43legacy_STAT_STARTED) {
3484 err = b43legacy_wireless_core_start(dev);
3485 if (err) {
3486 if (did_init)
3487 b43legacy_wireless_core_exit(dev);
3488 goto out_mutex_unlock;
3489 }
3490 }
3491
3492 wiphy_rfkill_start_polling(hw->wiphy);
3493
3494out_mutex_unlock:
3495 mutex_unlock(&wl->mutex);
3496
3497 return err;
3498}
3499
3500static void b43legacy_op_stop(struct ieee80211_hw *hw)
3501{
3502 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
3503 struct b43legacy_wldev *dev = wl->current_dev;
3504
3505 cancel_work_sync(&(wl->beacon_update_trigger));
3506
3507 mutex_lock(&wl->mutex);
3508 if (b43legacy_status(dev) >= B43legacy_STAT_STARTED)
3509 b43legacy_wireless_core_stop(dev);
3510 b43legacy_wireless_core_exit(dev);
3511 wl->radio_enabled = false;
3512 mutex_unlock(&wl->mutex);
3513}
3514
3515static int b43legacy_op_beacon_set_tim(struct ieee80211_hw *hw,
3516 struct ieee80211_sta *sta, bool set)
3517{
3518 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
3519 unsigned long flags;
3520
3521 spin_lock_irqsave(&wl->irq_lock, flags);
3522 b43legacy_update_templates(wl);
3523 spin_unlock_irqrestore(&wl->irq_lock, flags);
3524
3525 return 0;
3526}
3527
3528static int b43legacy_op_get_survey(struct ieee80211_hw *hw, int idx,
3529 struct survey_info *survey)
3530{
3531 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
3532 struct b43legacy_wldev *dev = wl->current_dev;
3533 struct ieee80211_conf *conf = &hw->conf;
3534
3535 if (idx != 0)
3536 return -ENOENT;
3537
3538 survey->channel = conf->chandef.chan;
3539 survey->filled = SURVEY_INFO_NOISE_DBM;
3540 survey->noise = dev->stats.link_noise;
3541
3542 return 0;
3543}
3544
3545static const struct ieee80211_ops b43legacy_hw_ops = {
3546 .tx = b43legacy_op_tx,
3547 .conf_tx = b43legacy_op_conf_tx,
3548 .add_interface = b43legacy_op_add_interface,
3549 .remove_interface = b43legacy_op_remove_interface,
3550 .config = b43legacy_op_dev_config,
3551 .bss_info_changed = b43legacy_op_bss_info_changed,
3552 .configure_filter = b43legacy_op_configure_filter,
3553 .get_stats = b43legacy_op_get_stats,
3554 .start = b43legacy_op_start,
3555 .stop = b43legacy_op_stop,
3556 .set_tim = b43legacy_op_beacon_set_tim,
3557 .get_survey = b43legacy_op_get_survey,
3558 .rfkill_poll = b43legacy_rfkill_poll,
3559};
3560
3561
3562
3563
3564static void b43legacy_chip_reset(struct work_struct *work)
3565{
3566 struct b43legacy_wldev *dev =
3567 container_of(work, struct b43legacy_wldev, restart_work);
3568 struct b43legacy_wl *wl = dev->wl;
3569 int err = 0;
3570 int prev_status;
3571
3572 mutex_lock(&wl->mutex);
3573
3574 prev_status = b43legacy_status(dev);
3575
3576 if (prev_status >= B43legacy_STAT_STARTED)
3577 b43legacy_wireless_core_stop(dev);
3578 if (prev_status >= B43legacy_STAT_INITIALIZED)
3579 b43legacy_wireless_core_exit(dev);
3580
3581
3582 if (prev_status >= B43legacy_STAT_INITIALIZED) {
3583 err = b43legacy_wireless_core_init(dev);
3584 if (err)
3585 goto out;
3586 }
3587 if (prev_status >= B43legacy_STAT_STARTED) {
3588 err = b43legacy_wireless_core_start(dev);
3589 if (err) {
3590 b43legacy_wireless_core_exit(dev);
3591 goto out;
3592 }
3593 }
3594out:
3595 if (err)
3596 wl->current_dev = NULL;
3597 mutex_unlock(&wl->mutex);
3598 if (err)
3599 b43legacyerr(wl, "Controller restart FAILED\n");
3600 else
3601 b43legacyinfo(wl, "Controller restarted\n");
3602}
3603
3604static int b43legacy_setup_modes(struct b43legacy_wldev *dev,
3605 int have_bphy,
3606 int have_gphy)
3607{
3608 struct ieee80211_hw *hw = dev->wl->hw;
3609 struct b43legacy_phy *phy = &dev->phy;
3610
3611 phy->possible_phymodes = 0;
3612 if (have_bphy) {
3613 hw->wiphy->bands[NL80211_BAND_2GHZ] =
3614 &b43legacy_band_2GHz_BPHY;
3615 phy->possible_phymodes |= B43legacy_PHYMODE_B;
3616 }
3617
3618 if (have_gphy) {
3619 hw->wiphy->bands[NL80211_BAND_2GHZ] =
3620 &b43legacy_band_2GHz_GPHY;
3621 phy->possible_phymodes |= B43legacy_PHYMODE_G;
3622 }
3623
3624 return 0;
3625}
3626
3627static void b43legacy_wireless_core_detach(struct b43legacy_wldev *dev)
3628{
3629
3630
3631 b43legacy_release_firmware(dev);
3632}
3633
3634static int b43legacy_wireless_core_attach(struct b43legacy_wldev *dev)
3635{
3636 struct b43legacy_wl *wl = dev->wl;
3637 struct ssb_bus *bus = dev->dev->bus;
3638 struct pci_dev *pdev = (bus->bustype == SSB_BUSTYPE_PCI) ? bus->host_pci : NULL;
3639 int err;
3640 int have_bphy = 0;
3641 int have_gphy = 0;
3642 u32 tmp;
3643
3644
3645
3646
3647
3648
3649
3650
3651 err = ssb_bus_powerup(bus, 0);
3652 if (err) {
3653 b43legacyerr(wl, "Bus powerup failed\n");
3654 goto out;
3655 }
3656
3657 if (dev->dev->id.revision >= 5) {
3658 u32 tmshigh;
3659
3660 tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);
3661 have_gphy = !!(tmshigh & B43legacy_TMSHIGH_GPHY);
3662 if (!have_gphy)
3663 have_bphy = 1;
3664 } else if (dev->dev->id.revision == 4)
3665 have_gphy = 1;
3666 else
3667 have_bphy = 1;
3668
3669 dev->phy.gmode = (have_gphy || have_bphy);
3670 dev->phy.radio_on = true;
3671 tmp = dev->phy.gmode ? B43legacy_TMSLOW_GMODE : 0;
3672 b43legacy_wireless_core_reset(dev, tmp);
3673
3674 err = b43legacy_phy_versioning(dev);
3675 if (err)
3676 goto err_powerdown;
3677
3678 if (!pdev ||
3679 (pdev->device != 0x4312 &&
3680 pdev->device != 0x4319 &&
3681 pdev->device != 0x4324)) {
3682
3683 have_bphy = 0;
3684 have_gphy = 0;
3685 switch (dev->phy.type) {
3686 case B43legacy_PHYTYPE_B:
3687 have_bphy = 1;
3688 break;
3689 case B43legacy_PHYTYPE_G:
3690 have_gphy = 1;
3691 break;
3692 default:
3693 B43legacy_BUG_ON(1);
3694 }
3695 }
3696 dev->phy.gmode = (have_gphy || have_bphy);
3697 tmp = dev->phy.gmode ? B43legacy_TMSLOW_GMODE : 0;
3698 b43legacy_wireless_core_reset(dev, tmp);
3699
3700 err = b43legacy_validate_chipaccess(dev);
3701 if (err)
3702 goto err_powerdown;
3703 err = b43legacy_setup_modes(dev, have_bphy, have_gphy);
3704 if (err)
3705 goto err_powerdown;
3706
3707
3708 if (!wl->current_dev)
3709 wl->current_dev = dev;
3710 INIT_WORK(&dev->restart_work, b43legacy_chip_reset);
3711
3712 b43legacy_radio_turn_off(dev, 1);
3713 b43legacy_switch_analog(dev, 0);
3714 ssb_device_disable(dev->dev, 0);
3715 ssb_bus_may_powerdown(bus);
3716
3717out:
3718 return err;
3719
3720err_powerdown:
3721 ssb_bus_may_powerdown(bus);
3722 return err;
3723}
3724
3725static void b43legacy_one_core_detach(struct ssb_device *dev)
3726{
3727 struct b43legacy_wldev *wldev;
3728 struct b43legacy_wl *wl;
3729
3730
3731
3732
3733 wldev = ssb_get_drvdata(dev);
3734 wl = wldev->wl;
3735 b43legacy_debugfs_remove_device(wldev);
3736 b43legacy_wireless_core_detach(wldev);
3737 list_del(&wldev->list);
3738 wl->nr_devs--;
3739 ssb_set_drvdata(dev, NULL);
3740 kfree(wldev);
3741}
3742
3743static int b43legacy_one_core_attach(struct ssb_device *dev,
3744 struct b43legacy_wl *wl)
3745{
3746 struct b43legacy_wldev *wldev;
3747 int err = -ENOMEM;
3748
3749 wldev = kzalloc(sizeof(*wldev), GFP_KERNEL);
3750 if (!wldev)
3751 goto out;
3752
3753 wldev->dev = dev;
3754 wldev->wl = wl;
3755 b43legacy_set_status(wldev, B43legacy_STAT_UNINIT);
3756 wldev->bad_frames_preempt = modparam_bad_frames_preempt;
3757 tasklet_init(&wldev->isr_tasklet,
3758 (void (*)(unsigned long))b43legacy_interrupt_tasklet,
3759 (unsigned long)wldev);
3760 if (modparam_pio)
3761 wldev->__using_pio = true;
3762 INIT_LIST_HEAD(&wldev->list);
3763
3764 err = b43legacy_wireless_core_attach(wldev);
3765 if (err)
3766 goto err_kfree_wldev;
3767
3768 list_add(&wldev->list, &wl->devlist);
3769 wl->nr_devs++;
3770 ssb_set_drvdata(dev, wldev);
3771 b43legacy_debugfs_add_device(wldev);
3772out:
3773 return err;
3774
3775err_kfree_wldev:
3776 kfree(wldev);
3777 return err;
3778}
3779
3780static void b43legacy_sprom_fixup(struct ssb_bus *bus)
3781{
3782
3783 if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE &&
3784 bus->boardinfo.type == 0x4E &&
3785 bus->sprom.board_rev > 0x40)
3786 bus->sprom.boardflags_lo |= B43legacy_BFL_PACTRL;
3787}
3788
3789static void b43legacy_wireless_exit(struct ssb_device *dev,
3790 struct b43legacy_wl *wl)
3791{
3792 struct ieee80211_hw *hw = wl->hw;
3793
3794 ssb_set_devtypedata(dev, NULL);
3795 ieee80211_free_hw(hw);
3796}
3797
3798static int b43legacy_wireless_init(struct ssb_device *dev)
3799{
3800 struct ssb_sprom *sprom = &dev->bus->sprom;
3801 struct ieee80211_hw *hw;
3802 struct b43legacy_wl *wl;
3803 int err = -ENOMEM;
3804 int queue_num;
3805
3806 b43legacy_sprom_fixup(dev->bus);
3807
3808 hw = ieee80211_alloc_hw(sizeof(*wl), &b43legacy_hw_ops);
3809 if (!hw) {
3810 b43legacyerr(NULL, "Could not allocate ieee80211 device\n");
3811 goto out;
3812 }
3813
3814
3815 ieee80211_hw_set(hw, RX_INCLUDES_FCS);
3816 ieee80211_hw_set(hw, SIGNAL_DBM);
3817
3818 hw->wiphy->interface_modes =
3819 BIT(NL80211_IFTYPE_AP) |
3820 BIT(NL80211_IFTYPE_STATION) |
3821#ifdef CONFIG_WIRELESS_WDS
3822 BIT(NL80211_IFTYPE_WDS) |
3823#endif
3824 BIT(NL80211_IFTYPE_ADHOC);
3825 hw->queues = 1;
3826 hw->max_rates = 2;
3827 SET_IEEE80211_DEV(hw, dev->dev);
3828 if (is_valid_ether_addr(sprom->et1mac))
3829 SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
3830 else
3831 SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac);
3832
3833 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
3834
3835
3836 wl = hw_to_b43legacy_wl(hw);
3837 memset(wl, 0, sizeof(*wl));
3838 wl->hw = hw;
3839 spin_lock_init(&wl->irq_lock);
3840 spin_lock_init(&wl->leds_lock);
3841 mutex_init(&wl->mutex);
3842 INIT_LIST_HEAD(&wl->devlist);
3843 INIT_WORK(&wl->beacon_update_trigger, b43legacy_beacon_update_trigger_work);
3844 INIT_WORK(&wl->tx_work, b43legacy_tx_work);
3845
3846
3847 for (queue_num = 0; queue_num < B43legacy_QOS_QUEUE_NUM; queue_num++) {
3848 skb_queue_head_init(&wl->tx_queue[queue_num]);
3849 wl->tx_queue_stopped[queue_num] = 0;
3850 }
3851
3852 ssb_set_devtypedata(dev, wl);
3853 b43legacyinfo(wl, "Broadcom %04X WLAN found (core revision %u)\n",
3854 dev->bus->chip_id, dev->id.revision);
3855 err = 0;
3856out:
3857 return err;
3858}
3859
3860static int b43legacy_probe(struct ssb_device *dev,
3861 const struct ssb_device_id *id)
3862{
3863 struct b43legacy_wl *wl;
3864 int err;
3865 int first = 0;
3866
3867 wl = ssb_get_devtypedata(dev);
3868 if (!wl) {
3869
3870 first = 1;
3871 err = b43legacy_wireless_init(dev);
3872 if (err)
3873 goto out;
3874 wl = ssb_get_devtypedata(dev);
3875 B43legacy_WARN_ON(!wl);
3876 }
3877 err = b43legacy_one_core_attach(dev, wl);
3878 if (err)
3879 goto err_wireless_exit;
3880
3881
3882 INIT_WORK(&wl->firmware_load, b43legacy_request_firmware);
3883 schedule_work(&wl->firmware_load);
3884
3885out:
3886 return err;
3887
3888err_wireless_exit:
3889 if (first)
3890 b43legacy_wireless_exit(dev, wl);
3891 return err;
3892}
3893
3894static void b43legacy_remove(struct ssb_device *dev)
3895{
3896 struct b43legacy_wl *wl = ssb_get_devtypedata(dev);
3897 struct b43legacy_wldev *wldev = ssb_get_drvdata(dev);
3898
3899
3900
3901 cancel_work_sync(&wldev->restart_work);
3902 cancel_work_sync(&wl->firmware_load);
3903 complete(&wldev->fw_load_complete);
3904
3905 B43legacy_WARN_ON(!wl);
3906 if (!wldev->fw.ucode)
3907 return;
3908 if (wl->current_dev == wldev)
3909 ieee80211_unregister_hw(wl->hw);
3910
3911 b43legacy_one_core_detach(dev);
3912
3913 if (list_empty(&wl->devlist))
3914
3915
3916
3917 b43legacy_wireless_exit(dev, wl);
3918}
3919
3920
3921void b43legacy_controller_restart(struct b43legacy_wldev *dev,
3922 const char *reason)
3923{
3924
3925 if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED)
3926 return;
3927 b43legacyinfo(dev->wl, "Controller RESET (%s) ...\n", reason);
3928 ieee80211_queue_work(dev->wl->hw, &dev->restart_work);
3929}
3930
3931#ifdef CONFIG_PM
3932
3933static int b43legacy_suspend(struct ssb_device *dev, pm_message_t state)
3934{
3935 struct b43legacy_wldev *wldev = ssb_get_drvdata(dev);
3936 struct b43legacy_wl *wl = wldev->wl;
3937
3938 b43legacydbg(wl, "Suspending...\n");
3939
3940 mutex_lock(&wl->mutex);
3941 wldev->suspend_init_status = b43legacy_status(wldev);
3942 if (wldev->suspend_init_status >= B43legacy_STAT_STARTED)
3943 b43legacy_wireless_core_stop(wldev);
3944 if (wldev->suspend_init_status >= B43legacy_STAT_INITIALIZED)
3945 b43legacy_wireless_core_exit(wldev);
3946 mutex_unlock(&wl->mutex);
3947
3948 b43legacydbg(wl, "Device suspended.\n");
3949
3950 return 0;
3951}
3952
3953static int b43legacy_resume(struct ssb_device *dev)
3954{
3955 struct b43legacy_wldev *wldev = ssb_get_drvdata(dev);
3956 struct b43legacy_wl *wl = wldev->wl;
3957 int err = 0;
3958
3959 b43legacydbg(wl, "Resuming...\n");
3960
3961 mutex_lock(&wl->mutex);
3962 if (wldev->suspend_init_status >= B43legacy_STAT_INITIALIZED) {
3963 err = b43legacy_wireless_core_init(wldev);
3964 if (err) {
3965 b43legacyerr(wl, "Resume failed at core init\n");
3966 goto out;
3967 }
3968 }
3969 if (wldev->suspend_init_status >= B43legacy_STAT_STARTED) {
3970 err = b43legacy_wireless_core_start(wldev);
3971 if (err) {
3972 b43legacy_wireless_core_exit(wldev);
3973 b43legacyerr(wl, "Resume failed at core start\n");
3974 goto out;
3975 }
3976 }
3977
3978 b43legacydbg(wl, "Device resumed.\n");
3979out:
3980 mutex_unlock(&wl->mutex);
3981 return err;
3982}
3983
3984#else
3985# define b43legacy_suspend NULL
3986# define b43legacy_resume NULL
3987#endif
3988
3989static struct ssb_driver b43legacy_ssb_driver = {
3990 .name = KBUILD_MODNAME,
3991 .id_table = b43legacy_ssb_tbl,
3992 .probe = b43legacy_probe,
3993 .remove = b43legacy_remove,
3994 .suspend = b43legacy_suspend,
3995 .resume = b43legacy_resume,
3996};
3997
3998static void b43legacy_print_driverinfo(void)
3999{
4000 const char *feat_pci = "", *feat_leds = "",
4001 *feat_pio = "", *feat_dma = "";
4002
4003#ifdef CONFIG_B43LEGACY_PCI_AUTOSELECT
4004 feat_pci = "P";
4005#endif
4006#ifdef CONFIG_B43LEGACY_LEDS
4007 feat_leds = "L";
4008#endif
4009#ifdef CONFIG_B43LEGACY_PIO
4010 feat_pio = "I";
4011#endif
4012#ifdef CONFIG_B43LEGACY_DMA
4013 feat_dma = "D";
4014#endif
4015 printk(KERN_INFO "Broadcom 43xx-legacy driver loaded "
4016 "[ Features: %s%s%s%s ]\n",
4017 feat_pci, feat_leds, feat_pio, feat_dma);
4018}
4019
4020static int __init b43legacy_init(void)
4021{
4022 int err;
4023
4024 b43legacy_debugfs_init();
4025
4026 err = ssb_driver_register(&b43legacy_ssb_driver);
4027 if (err)
4028 goto err_dfs_exit;
4029
4030 b43legacy_print_driverinfo();
4031
4032 return err;
4033
4034err_dfs_exit:
4035 b43legacy_debugfs_exit();
4036 return err;
4037}
4038
4039static void __exit b43legacy_exit(void)
4040{
4041 ssb_driver_unregister(&b43legacy_ssb_driver);
4042 b43legacy_debugfs_exit();
4043}
4044
4045module_init(b43legacy_init)
4046module_exit(b43legacy_exit)
4047