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