1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
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(unsigned long data)
1279{
1280 struct b43legacy_wldev *dev = (struct b43legacy_wldev *)data;
1281 u32 reason;
1282 u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
1283 u32 merged_dma_reason = 0;
1284 int i;
1285 unsigned long flags;
1286
1287 spin_lock_irqsave(&dev->wl->irq_lock, flags);
1288
1289 B43legacy_WARN_ON(b43legacy_status(dev) <
1290 B43legacy_STAT_INITIALIZED);
1291
1292 reason = dev->irq_reason;
1293 for (i = 0; i < ARRAY_SIZE(dma_reason); i++) {
1294 dma_reason[i] = dev->dma_reason[i];
1295 merged_dma_reason |= dma_reason[i];
1296 }
1297
1298 if (unlikely(reason & B43legacy_IRQ_MAC_TXERR))
1299 b43legacyerr(dev->wl, "MAC transmission error\n");
1300
1301 if (unlikely(reason & B43legacy_IRQ_PHY_TXERR)) {
1302 b43legacyerr(dev->wl, "PHY transmission error\n");
1303 rmb();
1304 if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) {
1305 b43legacyerr(dev->wl, "Too many PHY TX errors, "
1306 "restarting the controller\n");
1307 b43legacy_controller_restart(dev, "PHY TX errors");
1308 }
1309 }
1310
1311 if (unlikely(merged_dma_reason & (B43legacy_DMAIRQ_FATALMASK |
1312 B43legacy_DMAIRQ_NONFATALMASK))) {
1313 if (merged_dma_reason & B43legacy_DMAIRQ_FATALMASK) {
1314 b43legacyerr(dev->wl, "Fatal DMA error: "
1315 "0x%08X, 0x%08X, 0x%08X, "
1316 "0x%08X, 0x%08X, 0x%08X\n",
1317 dma_reason[0], dma_reason[1],
1318 dma_reason[2], dma_reason[3],
1319 dma_reason[4], dma_reason[5]);
1320 b43legacy_controller_restart(dev, "DMA error");
1321 spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
1322 return;
1323 }
1324 if (merged_dma_reason & B43legacy_DMAIRQ_NONFATALMASK)
1325 b43legacyerr(dev->wl, "DMA error: "
1326 "0x%08X, 0x%08X, 0x%08X, "
1327 "0x%08X, 0x%08X, 0x%08X\n",
1328 dma_reason[0], dma_reason[1],
1329 dma_reason[2], dma_reason[3],
1330 dma_reason[4], dma_reason[5]);
1331 }
1332
1333 if (unlikely(reason & B43legacy_IRQ_UCODE_DEBUG))
1334 handle_irq_ucode_debug(dev);
1335 if (reason & B43legacy_IRQ_TBTT_INDI)
1336 handle_irq_tbtt_indication(dev);
1337 if (reason & B43legacy_IRQ_ATIM_END)
1338 handle_irq_atim_end(dev);
1339 if (reason & B43legacy_IRQ_BEACON)
1340 handle_irq_beacon(dev);
1341 if (reason & B43legacy_IRQ_PMQ)
1342 handle_irq_pmq(dev);
1343 if (reason & B43legacy_IRQ_TXFIFO_FLUSH_OK)
1344 ;
1345 if (reason & B43legacy_IRQ_NOISESAMPLE_OK)
1346 handle_irq_noise(dev);
1347
1348
1349 if (dma_reason[0] & B43legacy_DMAIRQ_RX_DONE) {
1350 if (b43legacy_using_pio(dev))
1351 b43legacy_pio_rx(dev->pio.queue0);
1352 else
1353 b43legacy_dma_rx(dev->dma.rx_ring0);
1354 }
1355 B43legacy_WARN_ON(dma_reason[1] & B43legacy_DMAIRQ_RX_DONE);
1356 B43legacy_WARN_ON(dma_reason[2] & B43legacy_DMAIRQ_RX_DONE);
1357 if (dma_reason[3] & B43legacy_DMAIRQ_RX_DONE) {
1358 if (b43legacy_using_pio(dev))
1359 b43legacy_pio_rx(dev->pio.queue3);
1360 else
1361 b43legacy_dma_rx(dev->dma.rx_ring3);
1362 }
1363 B43legacy_WARN_ON(dma_reason[4] & B43legacy_DMAIRQ_RX_DONE);
1364 B43legacy_WARN_ON(dma_reason[5] & B43legacy_DMAIRQ_RX_DONE);
1365
1366 if (reason & B43legacy_IRQ_TX_OK)
1367 handle_irq_transmit_status(dev);
1368
1369 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
1370 spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
1371}
1372
1373static void pio_irq_workaround(struct b43legacy_wldev *dev,
1374 u16 base, int queueidx)
1375{
1376 u16 rxctl;
1377
1378 rxctl = b43legacy_read16(dev, base + B43legacy_PIO_RXCTL);
1379 if (rxctl & B43legacy_PIO_RXCTL_DATAAVAILABLE)
1380 dev->dma_reason[queueidx] |= B43legacy_DMAIRQ_RX_DONE;
1381 else
1382 dev->dma_reason[queueidx] &= ~B43legacy_DMAIRQ_RX_DONE;
1383}
1384
1385static void b43legacy_interrupt_ack(struct b43legacy_wldev *dev, u32 reason)
1386{
1387 if (b43legacy_using_pio(dev) &&
1388 (dev->dev->id.revision < 3) &&
1389 (!(reason & B43legacy_IRQ_PIO_WORKAROUND))) {
1390
1391 pio_irq_workaround(dev, B43legacy_MMIO_PIO1_BASE, 0);
1392 pio_irq_workaround(dev, B43legacy_MMIO_PIO2_BASE, 1);
1393 pio_irq_workaround(dev, B43legacy_MMIO_PIO3_BASE, 2);
1394 pio_irq_workaround(dev, B43legacy_MMIO_PIO4_BASE, 3);
1395 }
1396
1397 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, reason);
1398
1399 b43legacy_write32(dev, B43legacy_MMIO_DMA0_REASON,
1400 dev->dma_reason[0]);
1401 b43legacy_write32(dev, B43legacy_MMIO_DMA1_REASON,
1402 dev->dma_reason[1]);
1403 b43legacy_write32(dev, B43legacy_MMIO_DMA2_REASON,
1404 dev->dma_reason[2]);
1405 b43legacy_write32(dev, B43legacy_MMIO_DMA3_REASON,
1406 dev->dma_reason[3]);
1407 b43legacy_write32(dev, B43legacy_MMIO_DMA4_REASON,
1408 dev->dma_reason[4]);
1409 b43legacy_write32(dev, B43legacy_MMIO_DMA5_REASON,
1410 dev->dma_reason[5]);
1411}
1412
1413
1414static irqreturn_t b43legacy_interrupt_handler(int irq, void *dev_id)
1415{
1416 irqreturn_t ret = IRQ_NONE;
1417 struct b43legacy_wldev *dev = dev_id;
1418 u32 reason;
1419
1420 B43legacy_WARN_ON(!dev);
1421
1422 spin_lock(&dev->wl->irq_lock);
1423
1424 if (unlikely(b43legacy_status(dev) < B43legacy_STAT_STARTED))
1425
1426 goto out;
1427 reason = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
1428 if (reason == 0xffffffff)
1429 goto out;
1430 ret = IRQ_HANDLED;
1431 reason &= dev->irq_mask;
1432 if (!reason)
1433 goto out;
1434
1435 dev->dma_reason[0] = b43legacy_read32(dev,
1436 B43legacy_MMIO_DMA0_REASON)
1437 & 0x0001DC00;
1438 dev->dma_reason[1] = b43legacy_read32(dev,
1439 B43legacy_MMIO_DMA1_REASON)
1440 & 0x0000DC00;
1441 dev->dma_reason[2] = b43legacy_read32(dev,
1442 B43legacy_MMIO_DMA2_REASON)
1443 & 0x0000DC00;
1444 dev->dma_reason[3] = b43legacy_read32(dev,
1445 B43legacy_MMIO_DMA3_REASON)
1446 & 0x0001DC00;
1447 dev->dma_reason[4] = b43legacy_read32(dev,
1448 B43legacy_MMIO_DMA4_REASON)
1449 & 0x0000DC00;
1450 dev->dma_reason[5] = b43legacy_read32(dev,
1451 B43legacy_MMIO_DMA5_REASON)
1452 & 0x0000DC00;
1453
1454 b43legacy_interrupt_ack(dev, reason);
1455
1456 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
1457
1458 dev->irq_reason = reason;
1459 tasklet_schedule(&dev->isr_tasklet);
1460out:
1461 spin_unlock(&dev->wl->irq_lock);
1462
1463 return ret;
1464}
1465
1466static void b43legacy_release_firmware(struct b43legacy_wldev *dev)
1467{
1468 release_firmware(dev->fw.ucode);
1469 dev->fw.ucode = NULL;
1470 release_firmware(dev->fw.pcm);
1471 dev->fw.pcm = NULL;
1472 release_firmware(dev->fw.initvals);
1473 dev->fw.initvals = NULL;
1474 release_firmware(dev->fw.initvals_band);
1475 dev->fw.initvals_band = NULL;
1476}
1477
1478static void b43legacy_print_fw_helptext(struct b43legacy_wl *wl)
1479{
1480 b43legacyerr(wl, "You must go to http://wireless.kernel.org/en/users/"
1481 "Drivers/b43#devicefirmware "
1482 "and download the correct firmware (version 3).\n");
1483}
1484
1485static void b43legacy_fw_cb(const struct firmware *firmware, void *context)
1486{
1487 struct b43legacy_wldev *dev = context;
1488
1489 dev->fwp = firmware;
1490 complete(&dev->fw_load_complete);
1491}
1492
1493static int do_request_fw(struct b43legacy_wldev *dev,
1494 const char *name,
1495 const struct firmware **fw, bool async)
1496{
1497 char path[sizeof(modparam_fwpostfix) + 32];
1498 struct b43legacy_fw_header *hdr;
1499 u32 size;
1500 int err;
1501
1502 if (!name)
1503 return 0;
1504
1505 snprintf(path, ARRAY_SIZE(path),
1506 "b43legacy%s/%s.fw",
1507 modparam_fwpostfix, name);
1508 b43legacyinfo(dev->wl, "Loading firmware %s\n", path);
1509 if (async) {
1510 init_completion(&dev->fw_load_complete);
1511 err = request_firmware_nowait(THIS_MODULE, 1, path,
1512 dev->dev->dev, GFP_KERNEL,
1513 dev, b43legacy_fw_cb);
1514 if (err) {
1515 b43legacyerr(dev->wl, "Unable to load firmware\n");
1516 return err;
1517 }
1518
1519 wait_for_completion(&dev->fw_load_complete);
1520 if (!dev->fwp)
1521 err = -EINVAL;
1522 *fw = dev->fwp;
1523 } else {
1524 err = request_firmware(fw, path, dev->dev->dev);
1525 }
1526 if (err) {
1527 b43legacyerr(dev->wl, "Firmware file \"%s\" not found "
1528 "or load failed.\n", path);
1529 return err;
1530 }
1531 if ((*fw)->size < sizeof(struct b43legacy_fw_header))
1532 goto err_format;
1533 hdr = (struct b43legacy_fw_header *)((*fw)->data);
1534 switch (hdr->type) {
1535 case B43legacy_FW_TYPE_UCODE:
1536 case B43legacy_FW_TYPE_PCM:
1537 size = be32_to_cpu(hdr->size);
1538 if (size != (*fw)->size - sizeof(struct b43legacy_fw_header))
1539 goto err_format;
1540
1541 case B43legacy_FW_TYPE_IV:
1542 if (hdr->ver != 1)
1543 goto err_format;
1544 break;
1545 default:
1546 goto err_format;
1547 }
1548
1549 return err;
1550
1551err_format:
1552 b43legacyerr(dev->wl, "Firmware file \"%s\" format error.\n", path);
1553 return -EPROTO;
1554}
1555
1556static int b43legacy_one_core_attach(struct ssb_device *dev,
1557 struct b43legacy_wl *wl);
1558static void b43legacy_one_core_detach(struct ssb_device *dev);
1559
1560static void b43legacy_request_firmware(struct work_struct *work)
1561{
1562 struct b43legacy_wl *wl = container_of(work,
1563 struct b43legacy_wl, firmware_load);
1564 struct b43legacy_wldev *dev = wl->current_dev;
1565 struct b43legacy_firmware *fw = &dev->fw;
1566 const u8 rev = dev->dev->id.revision;
1567 const char *filename;
1568 int err;
1569
1570 if (!fw->ucode) {
1571 if (rev == 2)
1572 filename = "ucode2";
1573 else if (rev == 4)
1574 filename = "ucode4";
1575 else
1576 filename = "ucode5";
1577 err = do_request_fw(dev, filename, &fw->ucode, true);
1578 if (err)
1579 goto err_load;
1580 }
1581 if (!fw->pcm) {
1582 if (rev < 5)
1583 filename = "pcm4";
1584 else
1585 filename = "pcm5";
1586 err = do_request_fw(dev, filename, &fw->pcm, false);
1587 if (err)
1588 goto err_load;
1589 }
1590 if (!fw->initvals) {
1591 switch (dev->phy.type) {
1592 case B43legacy_PHYTYPE_B:
1593 case B43legacy_PHYTYPE_G:
1594 if ((rev >= 5) && (rev <= 10))
1595 filename = "b0g0initvals5";
1596 else if (rev == 2 || rev == 4)
1597 filename = "b0g0initvals2";
1598 else
1599 goto err_no_initvals;
1600 break;
1601 default:
1602 goto err_no_initvals;
1603 }
1604 err = do_request_fw(dev, filename, &fw->initvals, false);
1605 if (err)
1606 goto err_load;
1607 }
1608 if (!fw->initvals_band) {
1609 switch (dev->phy.type) {
1610 case B43legacy_PHYTYPE_B:
1611 case B43legacy_PHYTYPE_G:
1612 if ((rev >= 5) && (rev <= 10))
1613 filename = "b0g0bsinitvals5";
1614 else if (rev >= 11)
1615 filename = NULL;
1616 else if (rev == 2 || rev == 4)
1617 filename = NULL;
1618 else
1619 goto err_no_initvals;
1620 break;
1621 default:
1622 goto err_no_initvals;
1623 }
1624 err = do_request_fw(dev, filename, &fw->initvals_band, false);
1625 if (err)
1626 goto err_load;
1627 }
1628 err = ieee80211_register_hw(wl->hw);
1629 if (err)
1630 goto err_one_core_detach;
1631 return;
1632
1633err_one_core_detach:
1634 b43legacy_one_core_detach(dev->dev);
1635 goto error;
1636
1637err_load:
1638 b43legacy_print_fw_helptext(dev->wl);
1639 goto error;
1640
1641err_no_initvals:
1642 err = -ENODEV;
1643 b43legacyerr(dev->wl, "No Initial Values firmware file for PHY %u, "
1644 "core rev %u\n", dev->phy.type, rev);
1645 goto error;
1646
1647error:
1648 b43legacy_release_firmware(dev);
1649 return;
1650}
1651
1652static int b43legacy_upload_microcode(struct b43legacy_wldev *dev)
1653{
1654 struct wiphy *wiphy = dev->wl->hw->wiphy;
1655 const size_t hdr_len = sizeof(struct b43legacy_fw_header);
1656 const __be32 *data;
1657 unsigned int i;
1658 unsigned int len;
1659 u16 fwrev;
1660 u16 fwpatch;
1661 u16 fwdate;
1662 u16 fwtime;
1663 u32 tmp, macctl;
1664 int err = 0;
1665
1666
1667 macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
1668 B43legacy_WARN_ON(macctl & B43legacy_MACCTL_PSM_RUN);
1669 macctl |= B43legacy_MACCTL_PSM_JMP0;
1670 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
1671
1672 for (i = 0; i < 64; i++)
1673 b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, i, 0);
1674 for (i = 0; i < 4096; i += 2)
1675 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, i, 0);
1676
1677
1678 data = (__be32 *) (dev->fw.ucode->data + hdr_len);
1679 len = (dev->fw.ucode->size - hdr_len) / sizeof(__be32);
1680 b43legacy_shm_control_word(dev,
1681 B43legacy_SHM_UCODE |
1682 B43legacy_SHM_AUTOINC_W,
1683 0x0000);
1684 for (i = 0; i < len; i++) {
1685 b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA,
1686 be32_to_cpu(data[i]));
1687 udelay(10);
1688 }
1689
1690 if (dev->fw.pcm) {
1691
1692 data = (__be32 *) (dev->fw.pcm->data + hdr_len);
1693 len = (dev->fw.pcm->size - hdr_len) / sizeof(__be32);
1694 b43legacy_shm_control_word(dev, B43legacy_SHM_HW, 0x01EA);
1695 b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA, 0x00004000);
1696
1697 b43legacy_shm_control_word(dev, B43legacy_SHM_HW, 0x01EB);
1698 for (i = 0; i < len; i++) {
1699 b43legacy_write32(dev, B43legacy_MMIO_SHM_DATA,
1700 be32_to_cpu(data[i]));
1701 udelay(10);
1702 }
1703 }
1704
1705 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON,
1706 B43legacy_IRQ_ALL);
1707
1708
1709 macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
1710 macctl &= ~B43legacy_MACCTL_PSM_JMP0;
1711 macctl |= B43legacy_MACCTL_PSM_RUN;
1712 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
1713
1714
1715 i = 0;
1716 while (1) {
1717 tmp = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
1718 if (tmp == B43legacy_IRQ_MAC_SUSPENDED)
1719 break;
1720 i++;
1721 if (i >= B43legacy_IRQWAIT_MAX_RETRIES) {
1722 b43legacyerr(dev->wl, "Microcode not responding\n");
1723 b43legacy_print_fw_helptext(dev->wl);
1724 err = -ENODEV;
1725 goto error;
1726 }
1727 msleep_interruptible(50);
1728 if (signal_pending(current)) {
1729 err = -EINTR;
1730 goto error;
1731 }
1732 }
1733
1734 b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
1735
1736
1737 fwrev = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
1738 B43legacy_SHM_SH_UCODEREV);
1739 fwpatch = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
1740 B43legacy_SHM_SH_UCODEPATCH);
1741 fwdate = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
1742 B43legacy_SHM_SH_UCODEDATE);
1743 fwtime = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
1744 B43legacy_SHM_SH_UCODETIME);
1745
1746 if (fwrev > 0x128) {
1747 b43legacyerr(dev->wl, "YOU ARE TRYING TO LOAD V4 FIRMWARE."
1748 " Only firmware from binary drivers version 3.x"
1749 " is supported. You must change your firmware"
1750 " files.\n");
1751 b43legacy_print_fw_helptext(dev->wl);
1752 err = -EOPNOTSUPP;
1753 goto error;
1754 }
1755 b43legacyinfo(dev->wl, "Loading firmware version 0x%X, patch level %u "
1756 "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", fwrev, fwpatch,
1757 (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
1758 (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F,
1759 fwtime & 0x1F);
1760
1761 dev->fw.rev = fwrev;
1762 dev->fw.patch = fwpatch;
1763
1764 snprintf(wiphy->fw_version, sizeof(wiphy->fw_version), "%u.%u",
1765 dev->fw.rev, dev->fw.patch);
1766 wiphy->hw_version = dev->dev->id.coreid;
1767
1768 return 0;
1769
1770error:
1771 macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
1772 macctl &= ~B43legacy_MACCTL_PSM_RUN;
1773 macctl |= B43legacy_MACCTL_PSM_JMP0;
1774 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
1775
1776 return err;
1777}
1778
1779static int b43legacy_write_initvals(struct b43legacy_wldev *dev,
1780 const struct b43legacy_iv *ivals,
1781 size_t count,
1782 size_t array_size)
1783{
1784 const struct b43legacy_iv *iv;
1785 u16 offset;
1786 size_t i;
1787 bool bit32;
1788
1789 BUILD_BUG_ON(sizeof(struct b43legacy_iv) != 6);
1790 iv = ivals;
1791 for (i = 0; i < count; i++) {
1792 if (array_size < sizeof(iv->offset_size))
1793 goto err_format;
1794 array_size -= sizeof(iv->offset_size);
1795 offset = be16_to_cpu(iv->offset_size);
1796 bit32 = !!(offset & B43legacy_IV_32BIT);
1797 offset &= B43legacy_IV_OFFSET_MASK;
1798 if (offset >= 0x1000)
1799 goto err_format;
1800 if (bit32) {
1801 u32 value;
1802
1803 if (array_size < sizeof(iv->data.d32))
1804 goto err_format;
1805 array_size -= sizeof(iv->data.d32);
1806
1807 value = get_unaligned_be32(&iv->data.d32);
1808 b43legacy_write32(dev, offset, value);
1809
1810 iv = (const struct b43legacy_iv *)((const uint8_t *)iv +
1811 sizeof(__be16) +
1812 sizeof(__be32));
1813 } else {
1814 u16 value;
1815
1816 if (array_size < sizeof(iv->data.d16))
1817 goto err_format;
1818 array_size -= sizeof(iv->data.d16);
1819
1820 value = be16_to_cpu(iv->data.d16);
1821 b43legacy_write16(dev, offset, value);
1822
1823 iv = (const struct b43legacy_iv *)((const uint8_t *)iv +
1824 sizeof(__be16) +
1825 sizeof(__be16));
1826 }
1827 }
1828 if (array_size)
1829 goto err_format;
1830
1831 return 0;
1832
1833err_format:
1834 b43legacyerr(dev->wl, "Initial Values Firmware file-format error.\n");
1835 b43legacy_print_fw_helptext(dev->wl);
1836
1837 return -EPROTO;
1838}
1839
1840static int b43legacy_upload_initvals(struct b43legacy_wldev *dev)
1841{
1842 const size_t hdr_len = sizeof(struct b43legacy_fw_header);
1843 const struct b43legacy_fw_header *hdr;
1844 struct b43legacy_firmware *fw = &dev->fw;
1845 const struct b43legacy_iv *ivals;
1846 size_t count;
1847 int err;
1848
1849 hdr = (const struct b43legacy_fw_header *)(fw->initvals->data);
1850 ivals = (const struct b43legacy_iv *)(fw->initvals->data + hdr_len);
1851 count = be32_to_cpu(hdr->size);
1852 err = b43legacy_write_initvals(dev, ivals, count,
1853 fw->initvals->size - hdr_len);
1854 if (err)
1855 goto out;
1856 if (fw->initvals_band) {
1857 hdr = (const struct b43legacy_fw_header *)
1858 (fw->initvals_band->data);
1859 ivals = (const struct b43legacy_iv *)(fw->initvals_band->data
1860 + hdr_len);
1861 count = be32_to_cpu(hdr->size);
1862 err = b43legacy_write_initvals(dev, ivals, count,
1863 fw->initvals_band->size - hdr_len);
1864 if (err)
1865 goto out;
1866 }
1867out:
1868
1869 return err;
1870}
1871
1872
1873
1874
1875static int b43legacy_gpio_init(struct b43legacy_wldev *dev)
1876{
1877 struct ssb_bus *bus = dev->dev->bus;
1878 struct ssb_device *gpiodev, *pcidev = NULL;
1879 u32 mask;
1880 u32 set;
1881
1882 b43legacy_write32(dev, B43legacy_MMIO_MACCTL,
1883 b43legacy_read32(dev,
1884 B43legacy_MMIO_MACCTL)
1885 & 0xFFFF3FFF);
1886
1887 b43legacy_write16(dev, B43legacy_MMIO_GPIO_MASK,
1888 b43legacy_read16(dev,
1889 B43legacy_MMIO_GPIO_MASK)
1890 | 0x000F);
1891
1892 mask = 0x0000001F;
1893 set = 0x0000000F;
1894 if (dev->dev->bus->chip_id == 0x4301) {
1895 mask |= 0x0060;
1896 set |= 0x0060;
1897 }
1898 if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_PACTRL) {
1899 b43legacy_write16(dev, B43legacy_MMIO_GPIO_MASK,
1900 b43legacy_read16(dev,
1901 B43legacy_MMIO_GPIO_MASK)
1902 | 0x0200);
1903 mask |= 0x0200;
1904 set |= 0x0200;
1905 }
1906 if (dev->dev->id.revision >= 2)
1907 mask |= 0x0010;
1908
1909#ifdef CONFIG_SSB_DRIVER_PCICORE
1910 pcidev = bus->pcicore.dev;
1911#endif
1912 gpiodev = bus->chipco.dev ? : pcidev;
1913 if (!gpiodev)
1914 return 0;
1915 ssb_write32(gpiodev, B43legacy_GPIO_CONTROL,
1916 (ssb_read32(gpiodev, B43legacy_GPIO_CONTROL)
1917 & ~mask) | set);
1918
1919 return 0;
1920}
1921
1922
1923static void b43legacy_gpio_cleanup(struct b43legacy_wldev *dev)
1924{
1925 struct ssb_bus *bus = dev->dev->bus;
1926 struct ssb_device *gpiodev, *pcidev = NULL;
1927
1928#ifdef CONFIG_SSB_DRIVER_PCICORE
1929 pcidev = bus->pcicore.dev;
1930#endif
1931 gpiodev = bus->chipco.dev ? : pcidev;
1932 if (!gpiodev)
1933 return;
1934 ssb_write32(gpiodev, B43legacy_GPIO_CONTROL, 0);
1935}
1936
1937
1938void b43legacy_mac_enable(struct b43legacy_wldev *dev)
1939{
1940 dev->mac_suspended--;
1941 B43legacy_WARN_ON(dev->mac_suspended < 0);
1942 B43legacy_WARN_ON(irqs_disabled());
1943 if (dev->mac_suspended == 0) {
1944 b43legacy_write32(dev, B43legacy_MMIO_MACCTL,
1945 b43legacy_read32(dev,
1946 B43legacy_MMIO_MACCTL)
1947 | B43legacy_MACCTL_ENABLED);
1948 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON,
1949 B43legacy_IRQ_MAC_SUSPENDED);
1950
1951 b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
1952 b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
1953 b43legacy_power_saving_ctl_bits(dev, -1, -1);
1954
1955
1956 spin_lock_irq(&dev->wl->irq_lock);
1957 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK,
1958 dev->irq_mask);
1959 spin_unlock_irq(&dev->wl->irq_lock);
1960 }
1961}
1962
1963
1964void b43legacy_mac_suspend(struct b43legacy_wldev *dev)
1965{
1966 int i;
1967 u32 tmp;
1968
1969 might_sleep();
1970 B43legacy_WARN_ON(irqs_disabled());
1971 B43legacy_WARN_ON(dev->mac_suspended < 0);
1972
1973 if (dev->mac_suspended == 0) {
1974
1975
1976 spin_lock_irq(&dev->wl->irq_lock);
1977 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
1978 spin_unlock_irq(&dev->wl->irq_lock);
1979 b43legacy_synchronize_irq(dev);
1980
1981 b43legacy_power_saving_ctl_bits(dev, -1, 1);
1982 b43legacy_write32(dev, B43legacy_MMIO_MACCTL,
1983 b43legacy_read32(dev,
1984 B43legacy_MMIO_MACCTL)
1985 & ~B43legacy_MACCTL_ENABLED);
1986 b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
1987 for (i = 40; i; i--) {
1988 tmp = b43legacy_read32(dev,
1989 B43legacy_MMIO_GEN_IRQ_REASON);
1990 if (tmp & B43legacy_IRQ_MAC_SUSPENDED)
1991 goto out;
1992 msleep(1);
1993 }
1994 b43legacyerr(dev->wl, "MAC suspend failed\n");
1995 }
1996out:
1997 dev->mac_suspended++;
1998}
1999
2000static void b43legacy_adjust_opmode(struct b43legacy_wldev *dev)
2001{
2002 struct b43legacy_wl *wl = dev->wl;
2003 u32 ctl;
2004 u16 cfp_pretbtt;
2005
2006 ctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
2007
2008 ctl &= ~B43legacy_MACCTL_AP;
2009 ctl &= ~B43legacy_MACCTL_KEEP_CTL;
2010 ctl &= ~B43legacy_MACCTL_KEEP_BADPLCP;
2011 ctl &= ~B43legacy_MACCTL_KEEP_BAD;
2012 ctl &= ~B43legacy_MACCTL_PROMISC;
2013 ctl &= ~B43legacy_MACCTL_BEACPROMISC;
2014 ctl |= B43legacy_MACCTL_INFRA;
2015
2016 if (b43legacy_is_mode(wl, NL80211_IFTYPE_AP))
2017 ctl |= B43legacy_MACCTL_AP;
2018 else if (b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC))
2019 ctl &= ~B43legacy_MACCTL_INFRA;
2020
2021 if (wl->filter_flags & FIF_CONTROL)
2022 ctl |= B43legacy_MACCTL_KEEP_CTL;
2023 if (wl->filter_flags & FIF_FCSFAIL)
2024 ctl |= B43legacy_MACCTL_KEEP_BAD;
2025 if (wl->filter_flags & FIF_PLCPFAIL)
2026 ctl |= B43legacy_MACCTL_KEEP_BADPLCP;
2027 if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
2028 ctl |= B43legacy_MACCTL_BEACPROMISC;
2029
2030
2031
2032
2033 if (dev->dev->id.revision <= 4)
2034 ctl |= B43legacy_MACCTL_PROMISC;
2035
2036 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, ctl);
2037
2038 cfp_pretbtt = 2;
2039 if ((ctl & B43legacy_MACCTL_INFRA) &&
2040 !(ctl & B43legacy_MACCTL_AP)) {
2041 if (dev->dev->bus->chip_id == 0x4306 &&
2042 dev->dev->bus->chip_rev == 3)
2043 cfp_pretbtt = 100;
2044 else
2045 cfp_pretbtt = 50;
2046 }
2047 b43legacy_write16(dev, 0x612, cfp_pretbtt);
2048}
2049
2050static void b43legacy_rate_memory_write(struct b43legacy_wldev *dev,
2051 u16 rate,
2052 int is_ofdm)
2053{
2054 u16 offset;
2055
2056 if (is_ofdm) {
2057 offset = 0x480;
2058 offset += (b43legacy_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
2059 } else {
2060 offset = 0x4C0;
2061 offset += (b43legacy_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
2062 }
2063 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, offset + 0x20,
2064 b43legacy_shm_read16(dev,
2065 B43legacy_SHM_SHARED, offset));
2066}
2067
2068static void b43legacy_rate_memory_init(struct b43legacy_wldev *dev)
2069{
2070 switch (dev->phy.type) {
2071 case B43legacy_PHYTYPE_G:
2072 b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_6MB, 1);
2073 b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_12MB, 1);
2074 b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_18MB, 1);
2075 b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_24MB, 1);
2076 b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_36MB, 1);
2077 b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_48MB, 1);
2078 b43legacy_rate_memory_write(dev, B43legacy_OFDM_RATE_54MB, 1);
2079
2080 case B43legacy_PHYTYPE_B:
2081 b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_1MB, 0);
2082 b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_2MB, 0);
2083 b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_5MB, 0);
2084 b43legacy_rate_memory_write(dev, B43legacy_CCK_RATE_11MB, 0);
2085 break;
2086 default:
2087 B43legacy_BUG_ON(1);
2088 }
2089}
2090
2091
2092static void b43legacy_mgmtframe_txantenna(struct b43legacy_wldev *dev,
2093 int antenna)
2094{
2095 u16 ant = 0;
2096 u16 tmp;
2097
2098 switch (antenna) {
2099 case B43legacy_ANTENNA0:
2100 ant |= B43legacy_TX4_PHY_ANT0;
2101 break;
2102 case B43legacy_ANTENNA1:
2103 ant |= B43legacy_TX4_PHY_ANT1;
2104 break;
2105 case B43legacy_ANTENNA_AUTO:
2106 ant |= B43legacy_TX4_PHY_ANTLAST;
2107 break;
2108 default:
2109 B43legacy_BUG_ON(1);
2110 }
2111
2112
2113
2114
2115
2116 tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
2117 B43legacy_SHM_SH_BEACPHYCTL);
2118 tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant;
2119 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
2120 B43legacy_SHM_SH_BEACPHYCTL, tmp);
2121
2122 tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
2123 B43legacy_SHM_SH_ACKCTSPHYCTL);
2124 tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant;
2125 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
2126 B43legacy_SHM_SH_ACKCTSPHYCTL, tmp);
2127
2128 tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
2129 B43legacy_SHM_SH_PRPHYCTL);
2130 tmp = (tmp & ~B43legacy_TX4_PHY_ANT) | ant;
2131 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
2132 B43legacy_SHM_SH_PRPHYCTL, tmp);
2133}
2134
2135
2136static void b43legacy_chip_exit(struct b43legacy_wldev *dev)
2137{
2138 b43legacy_radio_turn_off(dev, 1);
2139 b43legacy_gpio_cleanup(dev);
2140
2141}
2142
2143
2144
2145
2146static int b43legacy_chip_init(struct b43legacy_wldev *dev)
2147{
2148 struct b43legacy_phy *phy = &dev->phy;
2149 int err;
2150 int tmp;
2151 u32 value32, macctl;
2152 u16 value16;
2153
2154
2155 macctl = B43legacy_MACCTL_IHR_ENABLED | B43legacy_MACCTL_SHM_ENABLED;
2156 if (dev->phy.gmode)
2157 macctl |= B43legacy_MACCTL_GMODE;
2158 macctl |= B43legacy_MACCTL_INFRA;
2159 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
2160
2161 err = b43legacy_upload_microcode(dev);
2162 if (err)
2163 goto out;
2164
2165 err = b43legacy_gpio_init(dev);
2166 if (err)
2167 goto out;
2168
2169 err = b43legacy_upload_initvals(dev);
2170 if (err)
2171 goto err_gpio_clean;
2172 b43legacy_radio_turn_on(dev);
2173
2174 b43legacy_write16(dev, 0x03E6, 0x0000);
2175 err = b43legacy_phy_init(dev);
2176 if (err)
2177 goto err_radio_off;
2178
2179
2180 tmp = phy->interfmode;
2181 phy->interfmode = B43legacy_INTERFMODE_NONE;
2182 b43legacy_radio_set_interference_mitigation(dev, tmp);
2183
2184 b43legacy_phy_set_antenna_diversity(dev);
2185 b43legacy_mgmtframe_txantenna(dev, B43legacy_ANTENNA_DEFAULT);
2186
2187 if (phy->type == B43legacy_PHYTYPE_B) {
2188 value16 = b43legacy_read16(dev, 0x005E);
2189 value16 |= 0x0004;
2190 b43legacy_write16(dev, 0x005E, value16);
2191 }
2192 b43legacy_write32(dev, 0x0100, 0x01000000);
2193 if (dev->dev->id.revision < 5)
2194 b43legacy_write32(dev, 0x010C, 0x01000000);
2195
2196 value32 = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
2197 value32 &= ~B43legacy_MACCTL_INFRA;
2198 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, value32);
2199 value32 = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
2200 value32 |= B43legacy_MACCTL_INFRA;
2201 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, value32);
2202
2203 if (b43legacy_using_pio(dev)) {
2204 b43legacy_write32(dev, 0x0210, 0x00000100);
2205 b43legacy_write32(dev, 0x0230, 0x00000100);
2206 b43legacy_write32(dev, 0x0250, 0x00000100);
2207 b43legacy_write32(dev, 0x0270, 0x00000100);
2208 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0034,
2209 0x0000);
2210 }
2211
2212
2213
2214 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED, 0x0074, 0x0000);
2215
2216
2217 b43legacy_adjust_opmode(dev);
2218
2219 if (dev->dev->id.revision < 3) {
2220 b43legacy_write16(dev, 0x060E, 0x0000);
2221 b43legacy_write16(dev, 0x0610, 0x8000);
2222 b43legacy_write16(dev, 0x0604, 0x0000);
2223 b43legacy_write16(dev, 0x0606, 0x0200);
2224 } else {
2225 b43legacy_write32(dev, 0x0188, 0x80000000);
2226 b43legacy_write32(dev, 0x018C, 0x02000000);
2227 }
2228 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_REASON, 0x00004000);
2229 b43legacy_write32(dev, B43legacy_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
2230 b43legacy_write32(dev, B43legacy_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
2231 b43legacy_write32(dev, B43legacy_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
2232 b43legacy_write32(dev, B43legacy_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
2233 b43legacy_write32(dev, B43legacy_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
2234 b43legacy_write32(dev, B43legacy_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
2235
2236 value32 = ssb_read32(dev->dev, SSB_TMSLOW);
2237 value32 |= B43legacy_TMSLOW_MACPHYCLKEN;
2238 ssb_write32(dev->dev, SSB_TMSLOW, value32);
2239
2240 b43legacy_write16(dev, B43legacy_MMIO_POWERUP_DELAY,
2241 dev->dev->bus->chipco.fast_pwrup_delay);
2242
2243
2244 atomic_set(&phy->txerr_cnt, B43legacy_PHY_TX_BADNESS_LIMIT);
2245
2246 B43legacy_WARN_ON(err != 0);
2247 b43legacydbg(dev->wl, "Chip initialized\n");
2248out:
2249 return err;
2250
2251err_radio_off:
2252 b43legacy_radio_turn_off(dev, 1);
2253err_gpio_clean:
2254 b43legacy_gpio_cleanup(dev);
2255 goto out;
2256}
2257
2258static void b43legacy_periodic_every120sec(struct b43legacy_wldev *dev)
2259{
2260 struct b43legacy_phy *phy = &dev->phy;
2261
2262 if (phy->type != B43legacy_PHYTYPE_G || phy->rev < 2)
2263 return;
2264
2265 b43legacy_mac_suspend(dev);
2266 b43legacy_phy_lo_g_measure(dev);
2267 b43legacy_mac_enable(dev);
2268}
2269
2270static void b43legacy_periodic_every60sec(struct b43legacy_wldev *dev)
2271{
2272 b43legacy_phy_lo_mark_all_unused(dev);
2273 if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_RSSI) {
2274 b43legacy_mac_suspend(dev);
2275 b43legacy_calc_nrssi_slope(dev);
2276 b43legacy_mac_enable(dev);
2277 }
2278}
2279
2280static void b43legacy_periodic_every30sec(struct b43legacy_wldev *dev)
2281{
2282
2283 b43legacy_calculate_link_quality(dev);
2284}
2285
2286static void b43legacy_periodic_every15sec(struct b43legacy_wldev *dev)
2287{
2288 b43legacy_phy_xmitpower(dev);
2289
2290 atomic_set(&dev->phy.txerr_cnt, B43legacy_PHY_TX_BADNESS_LIMIT);
2291 wmb();
2292}
2293
2294static void do_periodic_work(struct b43legacy_wldev *dev)
2295{
2296 unsigned int state;
2297
2298 state = dev->periodic_state;
2299 if (state % 8 == 0)
2300 b43legacy_periodic_every120sec(dev);
2301 if (state % 4 == 0)
2302 b43legacy_periodic_every60sec(dev);
2303 if (state % 2 == 0)
2304 b43legacy_periodic_every30sec(dev);
2305 b43legacy_periodic_every15sec(dev);
2306}
2307
2308
2309
2310
2311
2312
2313static void b43legacy_periodic_work_handler(struct work_struct *work)
2314{
2315 struct b43legacy_wldev *dev = container_of(work, struct b43legacy_wldev,
2316 periodic_work.work);
2317 struct b43legacy_wl *wl = dev->wl;
2318 unsigned long delay;
2319
2320 mutex_lock(&wl->mutex);
2321
2322 if (unlikely(b43legacy_status(dev) != B43legacy_STAT_STARTED))
2323 goto out;
2324 if (b43legacy_debug(dev, B43legacy_DBG_PWORK_STOP))
2325 goto out_requeue;
2326
2327 do_periodic_work(dev);
2328
2329 dev->periodic_state++;
2330out_requeue:
2331 if (b43legacy_debug(dev, B43legacy_DBG_PWORK_FAST))
2332 delay = msecs_to_jiffies(50);
2333 else
2334 delay = round_jiffies_relative(HZ * 15);
2335 ieee80211_queue_delayed_work(wl->hw, &dev->periodic_work, delay);
2336out:
2337 mutex_unlock(&wl->mutex);
2338}
2339
2340static void b43legacy_periodic_tasks_setup(struct b43legacy_wldev *dev)
2341{
2342 struct delayed_work *work = &dev->periodic_work;
2343
2344 dev->periodic_state = 0;
2345 INIT_DELAYED_WORK(work, b43legacy_periodic_work_handler);
2346 ieee80211_queue_delayed_work(dev->wl->hw, work, 0);
2347}
2348
2349
2350static int b43legacy_validate_chipaccess(struct b43legacy_wldev *dev)
2351{
2352 u32 value;
2353 u32 shm_backup;
2354
2355 shm_backup = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0);
2356 b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, 0xAA5555AA);
2357 if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0) !=
2358 0xAA5555AA)
2359 goto error;
2360 b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, 0x55AAAA55);
2361 if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED, 0) !=
2362 0x55AAAA55)
2363 goto error;
2364 b43legacy_shm_write32(dev, B43legacy_SHM_SHARED, 0, shm_backup);
2365
2366 value = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
2367 if ((value | B43legacy_MACCTL_GMODE) !=
2368 (B43legacy_MACCTL_GMODE | B43legacy_MACCTL_IHR_ENABLED))
2369 goto error;
2370
2371 value = b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_REASON);
2372 if (value)
2373 goto error;
2374
2375 return 0;
2376error:
2377 b43legacyerr(dev->wl, "Failed to validate the chipaccess\n");
2378 return -ENODEV;
2379}
2380
2381static void b43legacy_security_init(struct b43legacy_wldev *dev)
2382{
2383 dev->max_nr_keys = (dev->dev->id.revision >= 5) ? 58 : 20;
2384 B43legacy_WARN_ON(dev->max_nr_keys > ARRAY_SIZE(dev->key));
2385 dev->ktp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
2386 0x0056);
2387
2388
2389
2390 dev->ktp *= 2;
2391 if (dev->dev->id.revision >= 5)
2392
2393 b43legacy_write16(dev, B43legacy_MMIO_RCMTA_COUNT,
2394 dev->max_nr_keys - 8);
2395}
2396
2397#ifdef CONFIG_B43LEGACY_HWRNG
2398static int b43legacy_rng_read(struct hwrng *rng, u32 *data)
2399{
2400 struct b43legacy_wl *wl = (struct b43legacy_wl *)rng->priv;
2401 unsigned long flags;
2402
2403
2404
2405
2406
2407 spin_lock_irqsave(&wl->irq_lock, flags);
2408 *data = b43legacy_read16(wl->current_dev, B43legacy_MMIO_RNG);
2409 spin_unlock_irqrestore(&wl->irq_lock, flags);
2410
2411 return (sizeof(u16));
2412}
2413#endif
2414
2415static void b43legacy_rng_exit(struct b43legacy_wl *wl)
2416{
2417#ifdef CONFIG_B43LEGACY_HWRNG
2418 if (wl->rng_initialized)
2419 hwrng_unregister(&wl->rng);
2420#endif
2421}
2422
2423static int b43legacy_rng_init(struct b43legacy_wl *wl)
2424{
2425 int err = 0;
2426
2427#ifdef CONFIG_B43LEGACY_HWRNG
2428 snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name),
2429 "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy));
2430 wl->rng.name = wl->rng_name;
2431 wl->rng.data_read = b43legacy_rng_read;
2432 wl->rng.priv = (unsigned long)wl;
2433 wl->rng_initialized = 1;
2434 err = hwrng_register(&wl->rng);
2435 if (err) {
2436 wl->rng_initialized = 0;
2437 b43legacyerr(wl, "Failed to register the random "
2438 "number generator (%d)\n", err);
2439 }
2440
2441#endif
2442 return err;
2443}
2444
2445static void b43legacy_tx_work(struct work_struct *work)
2446{
2447 struct b43legacy_wl *wl = container_of(work, struct b43legacy_wl,
2448 tx_work);
2449 struct b43legacy_wldev *dev;
2450 struct sk_buff *skb;
2451 int queue_num;
2452 int err = 0;
2453
2454 mutex_lock(&wl->mutex);
2455 dev = wl->current_dev;
2456 if (unlikely(!dev || b43legacy_status(dev) < B43legacy_STAT_STARTED)) {
2457 mutex_unlock(&wl->mutex);
2458 return;
2459 }
2460
2461 for (queue_num = 0; queue_num < B43legacy_QOS_QUEUE_NUM; queue_num++) {
2462 while (skb_queue_len(&wl->tx_queue[queue_num])) {
2463 skb = skb_dequeue(&wl->tx_queue[queue_num]);
2464 if (b43legacy_using_pio(dev))
2465 err = b43legacy_pio_tx(dev, skb);
2466 else
2467 err = b43legacy_dma_tx(dev, skb);
2468 if (err == -ENOSPC) {
2469 wl->tx_queue_stopped[queue_num] = 1;
2470 ieee80211_stop_queue(wl->hw, queue_num);
2471 skb_queue_head(&wl->tx_queue[queue_num], skb);
2472 break;
2473 }
2474 if (unlikely(err))
2475 dev_kfree_skb(skb);
2476 err = 0;
2477 }
2478
2479 if (!err)
2480 wl->tx_queue_stopped[queue_num] = 0;
2481 }
2482
2483 mutex_unlock(&wl->mutex);
2484}
2485
2486static void b43legacy_op_tx(struct ieee80211_hw *hw,
2487 struct ieee80211_tx_control *control,
2488 struct sk_buff *skb)
2489{
2490 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
2491
2492 if (unlikely(skb->len < 2 + 2 + 6)) {
2493
2494 dev_kfree_skb_any(skb);
2495 return;
2496 }
2497 B43legacy_WARN_ON(skb_shinfo(skb)->nr_frags);
2498
2499 skb_queue_tail(&wl->tx_queue[skb->queue_mapping], skb);
2500 if (!wl->tx_queue_stopped[skb->queue_mapping])
2501 ieee80211_queue_work(wl->hw, &wl->tx_work);
2502 else
2503 ieee80211_stop_queue(wl->hw, skb->queue_mapping);
2504}
2505
2506static int b43legacy_op_conf_tx(struct ieee80211_hw *hw,
2507 struct ieee80211_vif *vif, u16 queue,
2508 const struct ieee80211_tx_queue_params *params)
2509{
2510 return 0;
2511}
2512
2513static int b43legacy_op_get_stats(struct ieee80211_hw *hw,
2514 struct ieee80211_low_level_stats *stats)
2515{
2516 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
2517 unsigned long flags;
2518
2519 spin_lock_irqsave(&wl->irq_lock, flags);
2520 memcpy(stats, &wl->ieee_stats, sizeof(*stats));
2521 spin_unlock_irqrestore(&wl->irq_lock, flags);
2522
2523 return 0;
2524}
2525
2526static const char *phymode_to_string(unsigned int phymode)
2527{
2528 switch (phymode) {
2529 case B43legacy_PHYMODE_B:
2530 return "B";
2531 case B43legacy_PHYMODE_G:
2532 return "G";
2533 default:
2534 B43legacy_BUG_ON(1);
2535 }
2536 return "";
2537}
2538
2539static int find_wldev_for_phymode(struct b43legacy_wl *wl,
2540 unsigned int phymode,
2541 struct b43legacy_wldev **dev,
2542 bool *gmode)
2543{
2544 struct b43legacy_wldev *d;
2545
2546 list_for_each_entry(d, &wl->devlist, list) {
2547 if (d->phy.possible_phymodes & phymode) {
2548
2549
2550 *gmode = true;
2551 *dev = d;
2552
2553 return 0;
2554 }
2555 }
2556
2557 return -ESRCH;
2558}
2559
2560static void b43legacy_put_phy_into_reset(struct b43legacy_wldev *dev)
2561{
2562 struct ssb_device *sdev = dev->dev;
2563 u32 tmslow;
2564
2565 tmslow = ssb_read32(sdev, SSB_TMSLOW);
2566 tmslow &= ~B43legacy_TMSLOW_GMODE;
2567 tmslow |= B43legacy_TMSLOW_PHYRESET;
2568 tmslow |= SSB_TMSLOW_FGC;
2569 ssb_write32(sdev, SSB_TMSLOW, tmslow);
2570 msleep(1);
2571
2572 tmslow = ssb_read32(sdev, SSB_TMSLOW);
2573 tmslow &= ~SSB_TMSLOW_FGC;
2574 tmslow |= B43legacy_TMSLOW_PHYRESET;
2575 ssb_write32(sdev, SSB_TMSLOW, tmslow);
2576 msleep(1);
2577}
2578
2579
2580static int b43legacy_switch_phymode(struct b43legacy_wl *wl,
2581 unsigned int new_mode)
2582{
2583 struct b43legacy_wldev *uninitialized_var(up_dev);
2584 struct b43legacy_wldev *down_dev;
2585 int err;
2586 bool gmode = false;
2587 int prev_status;
2588
2589 err = find_wldev_for_phymode(wl, new_mode, &up_dev, &gmode);
2590 if (err) {
2591 b43legacyerr(wl, "Could not find a device for %s-PHY mode\n",
2592 phymode_to_string(new_mode));
2593 return err;
2594 }
2595 if ((up_dev == wl->current_dev) &&
2596 (!!wl->current_dev->phy.gmode == !!gmode))
2597
2598 return 0;
2599 b43legacydbg(wl, "Reconfiguring PHYmode to %s-PHY\n",
2600 phymode_to_string(new_mode));
2601 down_dev = wl->current_dev;
2602
2603 prev_status = b43legacy_status(down_dev);
2604
2605 if (prev_status >= B43legacy_STAT_STARTED)
2606 b43legacy_wireless_core_stop(down_dev);
2607 if (prev_status >= B43legacy_STAT_INITIALIZED)
2608 b43legacy_wireless_core_exit(down_dev);
2609
2610 if (down_dev != up_dev)
2611
2612
2613 b43legacy_put_phy_into_reset(down_dev);
2614
2615
2616 up_dev->phy.gmode = gmode;
2617 if (prev_status >= B43legacy_STAT_INITIALIZED) {
2618 err = b43legacy_wireless_core_init(up_dev);
2619 if (err) {
2620 b43legacyerr(wl, "Fatal: Could not initialize device"
2621 " for newly selected %s-PHY mode\n",
2622 phymode_to_string(new_mode));
2623 goto init_failure;
2624 }
2625 }
2626 if (prev_status >= B43legacy_STAT_STARTED) {
2627 err = b43legacy_wireless_core_start(up_dev);
2628 if (err) {
2629 b43legacyerr(wl, "Fatal: Could not start device for "
2630 "newly selected %s-PHY mode\n",
2631 phymode_to_string(new_mode));
2632 b43legacy_wireless_core_exit(up_dev);
2633 goto init_failure;
2634 }
2635 }
2636 B43legacy_WARN_ON(b43legacy_status(up_dev) != prev_status);
2637
2638 b43legacy_shm_write32(up_dev, B43legacy_SHM_SHARED, 0x003E, 0);
2639
2640 wl->current_dev = up_dev;
2641
2642 return 0;
2643init_failure:
2644
2645 wl->current_dev = NULL;
2646 return err;
2647}
2648
2649
2650static void b43legacy_set_retry_limits(struct b43legacy_wldev *dev,
2651 unsigned int short_retry,
2652 unsigned int long_retry)
2653{
2654
2655
2656 short_retry = min(short_retry, (unsigned int)0xF);
2657 long_retry = min(long_retry, (unsigned int)0xF);
2658
2659 b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0006, short_retry);
2660 b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0007, long_retry);
2661}
2662
2663static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
2664 u32 changed)
2665{
2666 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
2667 struct b43legacy_wldev *dev;
2668 struct b43legacy_phy *phy;
2669 struct ieee80211_conf *conf = &hw->conf;
2670 unsigned long flags;
2671 unsigned int new_phymode = 0xFFFF;
2672 int antenna_tx;
2673 int err = 0;
2674
2675 antenna_tx = B43legacy_ANTENNA_DEFAULT;
2676
2677 mutex_lock(&wl->mutex);
2678 dev = wl->current_dev;
2679 phy = &dev->phy;
2680
2681 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
2682 b43legacy_set_retry_limits(dev,
2683 conf->short_frame_max_tx_count,
2684 conf->long_frame_max_tx_count);
2685 changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS;
2686 if (!changed)
2687 goto out_unlock_mutex;
2688
2689
2690 switch (conf->chandef.chan->band) {
2691 case NL80211_BAND_2GHZ:
2692 if (phy->type == B43legacy_PHYTYPE_B)
2693 new_phymode = B43legacy_PHYMODE_B;
2694 else
2695 new_phymode = B43legacy_PHYMODE_G;
2696 break;
2697 default:
2698 B43legacy_WARN_ON(1);
2699 }
2700 err = b43legacy_switch_phymode(wl, new_phymode);
2701 if (err)
2702 goto out_unlock_mutex;
2703
2704
2705
2706
2707 spin_lock_irqsave(&wl->irq_lock, flags);
2708 if (b43legacy_status(dev) < B43legacy_STAT_STARTED) {
2709 spin_unlock_irqrestore(&wl->irq_lock, flags);
2710 goto out_unlock_mutex;
2711 }
2712 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
2713 spin_unlock_irqrestore(&wl->irq_lock, flags);
2714 b43legacy_synchronize_irq(dev);
2715
2716
2717
2718 if (conf->chandef.chan->hw_value != phy->channel)
2719 b43legacy_radio_selectchannel(dev, conf->chandef.chan->hw_value,
2720 0);
2721
2722 dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_MONITOR);
2723
2724
2725 if (conf->power_level != 0) {
2726 if (conf->power_level != phy->power_level) {
2727 phy->power_level = conf->power_level;
2728 b43legacy_phy_xmitpower(dev);
2729 }
2730 }
2731
2732
2733 b43legacy_mgmtframe_txantenna(dev, antenna_tx);
2734
2735 if (wl->radio_enabled != phy->radio_on) {
2736 if (wl->radio_enabled) {
2737 b43legacy_radio_turn_on(dev);
2738 b43legacyinfo(dev->wl, "Radio turned on by software\n");
2739 if (!dev->radio_hw_enable)
2740 b43legacyinfo(dev->wl, "The hardware RF-kill"
2741 " button still turns the radio"
2742 " physically off. Press the"
2743 " button to turn it on.\n");
2744 } else {
2745 b43legacy_radio_turn_off(dev, 0);
2746 b43legacyinfo(dev->wl, "Radio turned off by"
2747 " software\n");
2748 }
2749 }
2750
2751 spin_lock_irqsave(&wl->irq_lock, flags);
2752 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
2753 spin_unlock_irqrestore(&wl->irq_lock, flags);
2754out_unlock_mutex:
2755 mutex_unlock(&wl->mutex);
2756
2757 return err;
2758}
2759
2760static void b43legacy_update_basic_rates(struct b43legacy_wldev *dev, u32 brates)
2761{
2762 struct ieee80211_supported_band *sband =
2763 dev->wl->hw->wiphy->bands[NL80211_BAND_2GHZ];
2764 struct ieee80211_rate *rate;
2765 int i;
2766 u16 basic, direct, offset, basic_offset, rateptr;
2767
2768 for (i = 0; i < sband->n_bitrates; i++) {
2769 rate = &sband->bitrates[i];
2770
2771 if (b43legacy_is_cck_rate(rate->hw_value)) {
2772 direct = B43legacy_SHM_SH_CCKDIRECT;
2773 basic = B43legacy_SHM_SH_CCKBASIC;
2774 offset = b43legacy_plcp_get_ratecode_cck(rate->hw_value);
2775 offset &= 0xF;
2776 } else {
2777 direct = B43legacy_SHM_SH_OFDMDIRECT;
2778 basic = B43legacy_SHM_SH_OFDMBASIC;
2779 offset = b43legacy_plcp_get_ratecode_ofdm(rate->hw_value);
2780 offset &= 0xF;
2781 }
2782
2783 rate = ieee80211_get_response_rate(sband, brates, rate->bitrate);
2784
2785 if (b43legacy_is_cck_rate(rate->hw_value)) {
2786 basic_offset = b43legacy_plcp_get_ratecode_cck(rate->hw_value);
2787 basic_offset &= 0xF;
2788 } else {
2789 basic_offset = b43legacy_plcp_get_ratecode_ofdm(rate->hw_value);
2790 basic_offset &= 0xF;
2791 }
2792
2793
2794
2795
2796
2797 rateptr = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
2798 direct + 2 * basic_offset);
2799
2800 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
2801 basic + 2 * offset, rateptr);
2802 }
2803}
2804
2805static void b43legacy_op_bss_info_changed(struct ieee80211_hw *hw,
2806 struct ieee80211_vif *vif,
2807 struct ieee80211_bss_conf *conf,
2808 u32 changed)
2809{
2810 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
2811 struct b43legacy_wldev *dev;
2812 unsigned long flags;
2813
2814 mutex_lock(&wl->mutex);
2815 B43legacy_WARN_ON(wl->vif != vif);
2816
2817 dev = wl->current_dev;
2818
2819
2820
2821
2822 spin_lock_irqsave(&wl->irq_lock, flags);
2823 if (b43legacy_status(dev) < B43legacy_STAT_STARTED) {
2824 spin_unlock_irqrestore(&wl->irq_lock, flags);
2825 goto out_unlock_mutex;
2826 }
2827 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
2828
2829 if (changed & BSS_CHANGED_BSSID) {
2830 b43legacy_synchronize_irq(dev);
2831
2832 if (conf->bssid)
2833 memcpy(wl->bssid, conf->bssid, ETH_ALEN);
2834 else
2835 eth_zero_addr(wl->bssid);
2836 }
2837
2838 if (b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED) {
2839 if (changed & BSS_CHANGED_BEACON &&
2840 (b43legacy_is_mode(wl, NL80211_IFTYPE_AP) ||
2841 b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC)))
2842 b43legacy_update_templates(wl);
2843
2844 if (changed & BSS_CHANGED_BSSID)
2845 b43legacy_write_mac_bssid_templates(dev);
2846 }
2847 spin_unlock_irqrestore(&wl->irq_lock, flags);
2848
2849 b43legacy_mac_suspend(dev);
2850
2851 if (changed & BSS_CHANGED_BEACON_INT &&
2852 (b43legacy_is_mode(wl, NL80211_IFTYPE_AP) ||
2853 b43legacy_is_mode(wl, NL80211_IFTYPE_ADHOC)))
2854 b43legacy_set_beacon_int(dev, conf->beacon_int);
2855
2856 if (changed & BSS_CHANGED_BASIC_RATES)
2857 b43legacy_update_basic_rates(dev, conf->basic_rates);
2858
2859 if (changed & BSS_CHANGED_ERP_SLOT) {
2860 if (conf->use_short_slot)
2861 b43legacy_short_slot_timing_enable(dev);
2862 else
2863 b43legacy_short_slot_timing_disable(dev);
2864 }
2865
2866 b43legacy_mac_enable(dev);
2867
2868 spin_lock_irqsave(&wl->irq_lock, flags);
2869 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
2870
2871 spin_unlock_irqrestore(&wl->irq_lock, flags);
2872 out_unlock_mutex:
2873 mutex_unlock(&wl->mutex);
2874}
2875
2876static void b43legacy_op_configure_filter(struct ieee80211_hw *hw,
2877 unsigned int changed,
2878 unsigned int *fflags,u64 multicast)
2879{
2880 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
2881 struct b43legacy_wldev *dev = wl->current_dev;
2882 unsigned long flags;
2883
2884 if (!dev) {
2885 *fflags = 0;
2886 return;
2887 }
2888
2889 spin_lock_irqsave(&wl->irq_lock, flags);
2890 *fflags &= FIF_ALLMULTI |
2891 FIF_FCSFAIL |
2892 FIF_PLCPFAIL |
2893 FIF_CONTROL |
2894 FIF_OTHER_BSS |
2895 FIF_BCN_PRBRESP_PROMISC;
2896
2897 changed &= FIF_ALLMULTI |
2898 FIF_FCSFAIL |
2899 FIF_PLCPFAIL |
2900 FIF_CONTROL |
2901 FIF_OTHER_BSS |
2902 FIF_BCN_PRBRESP_PROMISC;
2903
2904 wl->filter_flags = *fflags;
2905
2906 if (changed && b43legacy_status(dev) >= B43legacy_STAT_INITIALIZED)
2907 b43legacy_adjust_opmode(dev);
2908 spin_unlock_irqrestore(&wl->irq_lock, flags);
2909}
2910
2911
2912static void b43legacy_wireless_core_stop(struct b43legacy_wldev *dev)
2913{
2914 struct b43legacy_wl *wl = dev->wl;
2915 unsigned long flags;
2916 int queue_num;
2917
2918 if (b43legacy_status(dev) < B43legacy_STAT_STARTED)
2919 return;
2920
2921
2922
2923
2924 spin_lock_irqsave(&wl->irq_lock, flags);
2925 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, 0);
2926 b43legacy_read32(dev, B43legacy_MMIO_GEN_IRQ_MASK);
2927 spin_unlock_irqrestore(&wl->irq_lock, flags);
2928 b43legacy_synchronize_irq(dev);
2929
2930 b43legacy_set_status(dev, B43legacy_STAT_INITIALIZED);
2931
2932 mutex_unlock(&wl->mutex);
2933
2934
2935 cancel_delayed_work_sync(&dev->periodic_work);
2936 cancel_work_sync(&wl->tx_work);
2937 mutex_lock(&wl->mutex);
2938
2939
2940 for (queue_num = 0; queue_num < B43legacy_QOS_QUEUE_NUM; queue_num++) {
2941 while (skb_queue_len(&wl->tx_queue[queue_num]))
2942 dev_kfree_skb(skb_dequeue(&wl->tx_queue[queue_num]));
2943 }
2944
2945b43legacy_mac_suspend(dev);
2946 free_irq(dev->dev->irq, dev);
2947 b43legacydbg(wl, "Wireless interface stopped\n");
2948}
2949
2950
2951static int b43legacy_wireless_core_start(struct b43legacy_wldev *dev)
2952{
2953 int err;
2954
2955 B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_INITIALIZED);
2956
2957 drain_txstatus_queue(dev);
2958 err = request_irq(dev->dev->irq, b43legacy_interrupt_handler,
2959 IRQF_SHARED, KBUILD_MODNAME, dev);
2960 if (err) {
2961 b43legacyerr(dev->wl, "Cannot request IRQ-%d\n",
2962 dev->dev->irq);
2963 goto out;
2964 }
2965
2966 ieee80211_wake_queues(dev->wl->hw);
2967 b43legacy_set_status(dev, B43legacy_STAT_STARTED);
2968
2969
2970 b43legacy_mac_enable(dev);
2971 b43legacy_write32(dev, B43legacy_MMIO_GEN_IRQ_MASK, dev->irq_mask);
2972
2973
2974 b43legacy_periodic_tasks_setup(dev);
2975
2976 b43legacydbg(dev->wl, "Wireless interface started\n");
2977out:
2978 return err;
2979}
2980
2981
2982static int b43legacy_phy_versioning(struct b43legacy_wldev *dev)
2983{
2984 struct b43legacy_phy *phy = &dev->phy;
2985 u32 tmp;
2986 u8 analog_type;
2987 u8 phy_type;
2988 u8 phy_rev;
2989 u16 radio_manuf;
2990 u16 radio_ver;
2991 u16 radio_rev;
2992 int unsupported = 0;
2993
2994
2995 tmp = b43legacy_read16(dev, B43legacy_MMIO_PHY_VER);
2996 analog_type = (tmp & B43legacy_PHYVER_ANALOG)
2997 >> B43legacy_PHYVER_ANALOG_SHIFT;
2998 phy_type = (tmp & B43legacy_PHYVER_TYPE) >> B43legacy_PHYVER_TYPE_SHIFT;
2999 phy_rev = (tmp & B43legacy_PHYVER_VERSION);
3000 switch (phy_type) {
3001 case B43legacy_PHYTYPE_B:
3002 if (phy_rev != 2 && phy_rev != 4
3003 && phy_rev != 6 && phy_rev != 7)
3004 unsupported = 1;
3005 break;
3006 case B43legacy_PHYTYPE_G:
3007 if (phy_rev > 8)
3008 unsupported = 1;
3009 break;
3010 default:
3011 unsupported = 1;
3012 }
3013 if (unsupported) {
3014 b43legacyerr(dev->wl, "FOUND UNSUPPORTED PHY "
3015 "(Analog %u, Type %u, Revision %u)\n",
3016 analog_type, phy_type, phy_rev);
3017 return -EOPNOTSUPP;
3018 }
3019 b43legacydbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n",
3020 analog_type, phy_type, phy_rev);
3021
3022
3023
3024 if (dev->dev->bus->chip_id == 0x4317) {
3025 if (dev->dev->bus->chip_rev == 0)
3026 tmp = 0x3205017F;
3027 else if (dev->dev->bus->chip_rev == 1)
3028 tmp = 0x4205017F;
3029 else
3030 tmp = 0x5205017F;
3031 } else {
3032 b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL,
3033 B43legacy_RADIOCTL_ID);
3034 tmp = b43legacy_read16(dev, B43legacy_MMIO_RADIO_DATA_HIGH);
3035 tmp <<= 16;
3036 b43legacy_write16(dev, B43legacy_MMIO_RADIO_CONTROL,
3037 B43legacy_RADIOCTL_ID);
3038 tmp |= b43legacy_read16(dev, B43legacy_MMIO_RADIO_DATA_LOW);
3039 }
3040 radio_manuf = (tmp & 0x00000FFF);
3041 radio_ver = (tmp & 0x0FFFF000) >> 12;
3042 radio_rev = (tmp & 0xF0000000) >> 28;
3043 switch (phy_type) {
3044 case B43legacy_PHYTYPE_B:
3045 if ((radio_ver & 0xFFF0) != 0x2050)
3046 unsupported = 1;
3047 break;
3048 case B43legacy_PHYTYPE_G:
3049 if (radio_ver != 0x2050)
3050 unsupported = 1;
3051 break;
3052 default:
3053 B43legacy_BUG_ON(1);
3054 }
3055 if (unsupported) {
3056 b43legacyerr(dev->wl, "FOUND UNSUPPORTED RADIO "
3057 "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
3058 radio_manuf, radio_ver, radio_rev);
3059 return -EOPNOTSUPP;
3060 }
3061 b43legacydbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X,"
3062 " Revision %u\n", radio_manuf, radio_ver, radio_rev);
3063
3064
3065 phy->radio_manuf = radio_manuf;
3066 phy->radio_ver = radio_ver;
3067 phy->radio_rev = radio_rev;
3068
3069 phy->analog = analog_type;
3070 phy->type = phy_type;
3071 phy->rev = phy_rev;
3072
3073 return 0;
3074}
3075
3076static void setup_struct_phy_for_init(struct b43legacy_wldev *dev,
3077 struct b43legacy_phy *phy)
3078{
3079 struct b43legacy_lopair *lo;
3080 int i;
3081
3082 memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
3083 memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
3084
3085
3086
3087 dev->radio_hw_enable = true;
3088
3089 phy->savedpctlreg = 0xFFFF;
3090 phy->aci_enable = false;
3091 phy->aci_wlan_automatic = false;
3092 phy->aci_hw_rssi = false;
3093
3094 lo = phy->_lo_pairs;
3095 if (lo)
3096 memset(lo, 0, sizeof(struct b43legacy_lopair) *
3097 B43legacy_LO_COUNT);
3098 phy->max_lb_gain = 0;
3099 phy->trsw_rx_gain = 0;
3100
3101
3102 phy->bbatt = b43legacy_default_baseband_attenuation(dev);
3103 phy->rfatt = b43legacy_default_radio_attenuation(dev);
3104 phy->txctl1 = b43legacy_default_txctl1(dev);
3105 phy->txpwr_offset = 0;
3106
3107
3108 phy->nrssislope = 0;
3109 for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++)
3110 phy->nrssi[i] = -1000;
3111 for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++)
3112 phy->nrssi_lt[i] = i;
3113
3114 phy->lofcal = 0xFFFF;
3115 phy->initval = 0xFFFF;
3116
3117 phy->interfmode = B43legacy_INTERFMODE_NONE;
3118 phy->channel = 0xFF;
3119}
3120
3121static void setup_struct_wldev_for_init(struct b43legacy_wldev *dev)
3122{
3123
3124 dev->dfq_valid = false;
3125
3126
3127 memset(&dev->stats, 0, sizeof(dev->stats));
3128
3129 setup_struct_phy_for_init(dev, &dev->phy);
3130
3131
3132 dev->irq_reason = 0;
3133 memset(dev->dma_reason, 0, sizeof(dev->dma_reason));
3134 dev->irq_mask = B43legacy_IRQ_MASKTEMPLATE;
3135
3136 dev->mac_suspended = 1;
3137
3138
3139 memset(&dev->noisecalc, 0, sizeof(dev->noisecalc));
3140}
3141
3142static void b43legacy_set_synth_pu_delay(struct b43legacy_wldev *dev,
3143 bool idle) {
3144 u16 pu_delay = 1050;
3145
3146 if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_ADHOC) || idle)
3147 pu_delay = 500;
3148 if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8))
3149 pu_delay = max(pu_delay, (u16)2400);
3150
3151 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
3152 B43legacy_SHM_SH_SPUWKUP, pu_delay);
3153}
3154
3155
3156static void b43legacy_set_pretbtt(struct b43legacy_wldev *dev)
3157{
3158 u16 pretbtt;
3159
3160
3161 if (b43legacy_is_mode(dev->wl, NL80211_IFTYPE_ADHOC))
3162 pretbtt = 2;
3163 else
3164 pretbtt = 250;
3165 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
3166 B43legacy_SHM_SH_PRETBTT, pretbtt);
3167 b43legacy_write16(dev, B43legacy_MMIO_TSF_CFP_PRETBTT, pretbtt);
3168}
3169
3170
3171
3172static void b43legacy_wireless_core_exit(struct b43legacy_wldev *dev)
3173{
3174 struct b43legacy_phy *phy = &dev->phy;
3175 u32 macctl;
3176
3177 B43legacy_WARN_ON(b43legacy_status(dev) > B43legacy_STAT_INITIALIZED);
3178 if (b43legacy_status(dev) != B43legacy_STAT_INITIALIZED)
3179 return;
3180 b43legacy_set_status(dev, B43legacy_STAT_UNINIT);
3181
3182
3183 macctl = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
3184 macctl &= ~B43legacy_MACCTL_PSM_RUN;
3185 macctl |= B43legacy_MACCTL_PSM_JMP0;
3186 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, macctl);
3187
3188 b43legacy_leds_exit(dev);
3189 b43legacy_rng_exit(dev->wl);
3190 b43legacy_pio_free(dev);
3191 b43legacy_dma_free(dev);
3192 b43legacy_chip_exit(dev);
3193 b43legacy_radio_turn_off(dev, 1);
3194 b43legacy_switch_analog(dev, 0);
3195 if (phy->dyn_tssi_tbl)
3196 kfree(phy->tssi2dbm);
3197 kfree(phy->lo_control);
3198 phy->lo_control = NULL;
3199 if (dev->wl->current_beacon) {
3200 dev_kfree_skb_any(dev->wl->current_beacon);
3201 dev->wl->current_beacon = NULL;
3202 }
3203
3204 ssb_device_disable(dev->dev, 0);
3205 ssb_bus_may_powerdown(dev->dev->bus);
3206}
3207
3208static void prepare_phy_data_for_init(struct b43legacy_wldev *dev)
3209{
3210 struct b43legacy_phy *phy = &dev->phy;
3211 int i;
3212
3213
3214 phy->bbatt = b43legacy_default_baseband_attenuation(dev);
3215 phy->rfatt = b43legacy_default_radio_attenuation(dev);
3216 phy->txctl1 = b43legacy_default_txctl1(dev);
3217 phy->txctl2 = 0xFFFF;
3218 phy->txpwr_offset = 0;
3219
3220
3221 phy->nrssislope = 0;
3222 for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++)
3223 phy->nrssi[i] = -1000;
3224 for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++)
3225 phy->nrssi_lt[i] = i;
3226
3227 phy->lofcal = 0xFFFF;
3228 phy->initval = 0xFFFF;
3229
3230 phy->aci_enable = false;
3231 phy->aci_wlan_automatic = false;
3232 phy->aci_hw_rssi = false;
3233
3234 phy->antenna_diversity = 0xFFFF;
3235 memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
3236 memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
3237
3238
3239 phy->calibrated = 0;
3240
3241 if (phy->_lo_pairs)
3242 memset(phy->_lo_pairs, 0,
3243 sizeof(struct b43legacy_lopair) * B43legacy_LO_COUNT);
3244 memset(phy->loopback_gain, 0, sizeof(phy->loopback_gain));
3245}
3246
3247
3248static int b43legacy_wireless_core_init(struct b43legacy_wldev *dev)
3249{
3250 struct b43legacy_wl *wl = dev->wl;
3251 struct ssb_bus *bus = dev->dev->bus;
3252 struct b43legacy_phy *phy = &dev->phy;
3253 struct ssb_sprom *sprom = &dev->dev->bus->sprom;
3254 int err;
3255 u32 hf;
3256 u32 tmp;
3257
3258 B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_UNINIT);
3259
3260 err = ssb_bus_powerup(bus, 0);
3261 if (err)
3262 goto out;
3263 if (!ssb_device_is_enabled(dev->dev)) {
3264 tmp = phy->gmode ? B43legacy_TMSLOW_GMODE : 0;
3265 b43legacy_wireless_core_reset(dev, tmp);
3266 }
3267
3268 if ((phy->type == B43legacy_PHYTYPE_B) ||
3269 (phy->type == B43legacy_PHYTYPE_G)) {
3270 phy->_lo_pairs = kcalloc(B43legacy_LO_COUNT,
3271 sizeof(struct b43legacy_lopair),
3272 GFP_KERNEL);
3273 if (!phy->_lo_pairs)
3274 return -ENOMEM;
3275 }
3276 setup_struct_wldev_for_init(dev);
3277
3278 err = b43legacy_phy_init_tssi2dbm_table(dev);
3279 if (err)
3280 goto err_kfree_lo_control;
3281
3282
3283 ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev);
3284
3285 prepare_phy_data_for_init(dev);
3286 b43legacy_phy_calibrate(dev);
3287 err = b43legacy_chip_init(dev);
3288 if (err)
3289 goto err_kfree_tssitbl;
3290 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
3291 B43legacy_SHM_SH_WLCOREREV,
3292 dev->dev->id.revision);
3293 hf = b43legacy_hf_read(dev);
3294 if (phy->type == B43legacy_PHYTYPE_G) {
3295 hf |= B43legacy_HF_SYMW;
3296 if (phy->rev == 1)
3297 hf |= B43legacy_HF_GDCW;
3298 if (sprom->boardflags_lo & B43legacy_BFL_PACTRL)
3299 hf |= B43legacy_HF_OFDMPABOOST;
3300 } else if (phy->type == B43legacy_PHYTYPE_B) {
3301 hf |= B43legacy_HF_SYMW;
3302 if (phy->rev >= 2 && phy->radio_ver == 0x2050)
3303 hf &= ~B43legacy_HF_GDCW;
3304 }
3305 b43legacy_hf_write(dev, hf);
3306
3307 b43legacy_set_retry_limits(dev,
3308 B43legacy_DEFAULT_SHORT_RETRY_LIMIT,
3309 B43legacy_DEFAULT_LONG_RETRY_LIMIT);
3310
3311 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
3312 0x0044, 3);
3313 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
3314 0x0046, 2);
3315
3316
3317
3318
3319
3320 b43legacy_shm_write16(dev, B43legacy_SHM_SHARED,
3321 B43legacy_SHM_SH_PRMAXTIME, 1);
3322
3323 b43legacy_rate_memory_init(dev);
3324
3325
3326 if (phy->type == B43legacy_PHYTYPE_B)
3327 b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS,
3328 0x0003, 31);
3329 else
3330 b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS,
3331 0x0003, 15);
3332
3333 b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS,
3334 0x0004, 1023);
3335
3336 do {
3337 if (b43legacy_using_pio(dev))
3338 err = b43legacy_pio_init(dev);
3339 else {
3340 err = b43legacy_dma_init(dev);
3341 if (!err)
3342 b43legacy_qos_init(dev);
3343 }
3344 } while (err == -EAGAIN);
3345 if (err)
3346 goto err_chip_exit;
3347
3348 b43legacy_set_synth_pu_delay(dev, 1);
3349
3350 ssb_bus_powerup(bus, 1);
3351 b43legacy_upload_card_macaddress(dev);
3352 b43legacy_security_init(dev);
3353 b43legacy_rng_init(wl);
3354
3355 ieee80211_wake_queues(dev->wl->hw);
3356 b43legacy_set_status(dev, B43legacy_STAT_INITIALIZED);
3357
3358 b43legacy_leds_init(dev);
3359out:
3360 return err;
3361
3362err_chip_exit:
3363 b43legacy_chip_exit(dev);
3364err_kfree_tssitbl:
3365 if (phy->dyn_tssi_tbl)
3366 kfree(phy->tssi2dbm);
3367err_kfree_lo_control:
3368 kfree(phy->lo_control);
3369 phy->lo_control = NULL;
3370 ssb_bus_may_powerdown(bus);
3371 B43legacy_WARN_ON(b43legacy_status(dev) != B43legacy_STAT_UNINIT);
3372 return err;
3373}
3374
3375static int b43legacy_op_add_interface(struct ieee80211_hw *hw,
3376 struct ieee80211_vif *vif)
3377{
3378 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
3379 struct b43legacy_wldev *dev;
3380 unsigned long flags;
3381 int err = -EOPNOTSUPP;
3382
3383
3384
3385 if (vif->type != NL80211_IFTYPE_AP &&
3386 vif->type != NL80211_IFTYPE_STATION &&
3387 vif->type != NL80211_IFTYPE_WDS &&
3388 vif->type != NL80211_IFTYPE_ADHOC)
3389 return -EOPNOTSUPP;
3390
3391 mutex_lock(&wl->mutex);
3392 if (wl->operating)
3393 goto out_mutex_unlock;
3394
3395 b43legacydbg(wl, "Adding Interface type %d\n", vif->type);
3396
3397 dev = wl->current_dev;
3398 wl->operating = true;
3399 wl->vif = vif;
3400 wl->if_type = vif->type;
3401 memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
3402
3403 spin_lock_irqsave(&wl->irq_lock, flags);
3404 b43legacy_adjust_opmode(dev);
3405 b43legacy_set_pretbtt(dev);
3406 b43legacy_set_synth_pu_delay(dev, 0);
3407 b43legacy_upload_card_macaddress(dev);
3408 spin_unlock_irqrestore(&wl->irq_lock, flags);
3409
3410 err = 0;
3411 out_mutex_unlock:
3412 mutex_unlock(&wl->mutex);
3413
3414 return err;
3415}
3416
3417static void b43legacy_op_remove_interface(struct ieee80211_hw *hw,
3418 struct ieee80211_vif *vif)
3419{
3420 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
3421 struct b43legacy_wldev *dev = wl->current_dev;
3422 unsigned long flags;
3423
3424 b43legacydbg(wl, "Removing Interface type %d\n", vif->type);
3425
3426 mutex_lock(&wl->mutex);
3427
3428 B43legacy_WARN_ON(!wl->operating);
3429 B43legacy_WARN_ON(wl->vif != vif);
3430 wl->vif = NULL;
3431
3432 wl->operating = false;
3433
3434 spin_lock_irqsave(&wl->irq_lock, flags);
3435 b43legacy_adjust_opmode(dev);
3436 eth_zero_addr(wl->mac_addr);
3437 b43legacy_upload_card_macaddress(dev);
3438 spin_unlock_irqrestore(&wl->irq_lock, flags);
3439
3440 mutex_unlock(&wl->mutex);
3441}
3442
3443static int b43legacy_op_start(struct ieee80211_hw *hw)
3444{
3445 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
3446 struct b43legacy_wldev *dev = wl->current_dev;
3447 int did_init = 0;
3448 int err = 0;
3449
3450
3451
3452
3453 eth_zero_addr(wl->bssid);
3454 eth_zero_addr(wl->mac_addr);
3455 wl->filter_flags = 0;
3456 wl->beacon0_uploaded = false;
3457 wl->beacon1_uploaded = false;
3458 wl->beacon_templates_virgin = true;
3459 wl->radio_enabled = true;
3460
3461 mutex_lock(&wl->mutex);
3462
3463 if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED) {
3464 err = b43legacy_wireless_core_init(dev);
3465 if (err)
3466 goto out_mutex_unlock;
3467 did_init = 1;
3468 }
3469
3470 if (b43legacy_status(dev) < B43legacy_STAT_STARTED) {
3471 err = b43legacy_wireless_core_start(dev);
3472 if (err) {
3473 if (did_init)
3474 b43legacy_wireless_core_exit(dev);
3475 goto out_mutex_unlock;
3476 }
3477 }
3478
3479 wiphy_rfkill_start_polling(hw->wiphy);
3480
3481out_mutex_unlock:
3482 mutex_unlock(&wl->mutex);
3483
3484 return err;
3485}
3486
3487static void b43legacy_op_stop(struct ieee80211_hw *hw)
3488{
3489 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
3490 struct b43legacy_wldev *dev = wl->current_dev;
3491
3492 cancel_work_sync(&(wl->beacon_update_trigger));
3493
3494 mutex_lock(&wl->mutex);
3495 if (b43legacy_status(dev) >= B43legacy_STAT_STARTED)
3496 b43legacy_wireless_core_stop(dev);
3497 b43legacy_wireless_core_exit(dev);
3498 wl->radio_enabled = false;
3499 mutex_unlock(&wl->mutex);
3500}
3501
3502static int b43legacy_op_beacon_set_tim(struct ieee80211_hw *hw,
3503 struct ieee80211_sta *sta, bool set)
3504{
3505 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
3506 unsigned long flags;
3507
3508 spin_lock_irqsave(&wl->irq_lock, flags);
3509 b43legacy_update_templates(wl);
3510 spin_unlock_irqrestore(&wl->irq_lock, flags);
3511
3512 return 0;
3513}
3514
3515static int b43legacy_op_get_survey(struct ieee80211_hw *hw, int idx,
3516 struct survey_info *survey)
3517{
3518 struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
3519 struct b43legacy_wldev *dev = wl->current_dev;
3520 struct ieee80211_conf *conf = &hw->conf;
3521
3522 if (idx != 0)
3523 return -ENOENT;
3524
3525 survey->channel = conf->chandef.chan;
3526 survey->filled = SURVEY_INFO_NOISE_DBM;
3527 survey->noise = dev->stats.link_noise;
3528
3529 return 0;
3530}
3531
3532static const struct ieee80211_ops b43legacy_hw_ops = {
3533 .tx = b43legacy_op_tx,
3534 .conf_tx = b43legacy_op_conf_tx,
3535 .add_interface = b43legacy_op_add_interface,
3536 .remove_interface = b43legacy_op_remove_interface,
3537 .config = b43legacy_op_dev_config,
3538 .bss_info_changed = b43legacy_op_bss_info_changed,
3539 .configure_filter = b43legacy_op_configure_filter,
3540 .get_stats = b43legacy_op_get_stats,
3541 .start = b43legacy_op_start,
3542 .stop = b43legacy_op_stop,
3543 .set_tim = b43legacy_op_beacon_set_tim,
3544 .get_survey = b43legacy_op_get_survey,
3545 .rfkill_poll = b43legacy_rfkill_poll,
3546};
3547
3548
3549
3550
3551static void b43legacy_chip_reset(struct work_struct *work)
3552{
3553 struct b43legacy_wldev *dev =
3554 container_of(work, struct b43legacy_wldev, restart_work);
3555 struct b43legacy_wl *wl = dev->wl;
3556 int err = 0;
3557 int prev_status;
3558
3559 mutex_lock(&wl->mutex);
3560
3561 prev_status = b43legacy_status(dev);
3562
3563 if (prev_status >= B43legacy_STAT_STARTED)
3564 b43legacy_wireless_core_stop(dev);
3565 if (prev_status >= B43legacy_STAT_INITIALIZED)
3566 b43legacy_wireless_core_exit(dev);
3567
3568
3569 if (prev_status >= B43legacy_STAT_INITIALIZED) {
3570 err = b43legacy_wireless_core_init(dev);
3571 if (err)
3572 goto out;
3573 }
3574 if (prev_status >= B43legacy_STAT_STARTED) {
3575 err = b43legacy_wireless_core_start(dev);
3576 if (err) {
3577 b43legacy_wireless_core_exit(dev);
3578 goto out;
3579 }
3580 }
3581out:
3582 if (err)
3583 wl->current_dev = NULL;
3584 mutex_unlock(&wl->mutex);
3585 if (err)
3586 b43legacyerr(wl, "Controller restart FAILED\n");
3587 else
3588 b43legacyinfo(wl, "Controller restarted\n");
3589}
3590
3591static int b43legacy_setup_modes(struct b43legacy_wldev *dev,
3592 int have_bphy,
3593 int have_gphy)
3594{
3595 struct ieee80211_hw *hw = dev->wl->hw;
3596 struct b43legacy_phy *phy = &dev->phy;
3597
3598 phy->possible_phymodes = 0;
3599 if (have_bphy) {
3600 hw->wiphy->bands[NL80211_BAND_2GHZ] =
3601 &b43legacy_band_2GHz_BPHY;
3602 phy->possible_phymodes |= B43legacy_PHYMODE_B;
3603 }
3604
3605 if (have_gphy) {
3606 hw->wiphy->bands[NL80211_BAND_2GHZ] =
3607 &b43legacy_band_2GHz_GPHY;
3608 phy->possible_phymodes |= B43legacy_PHYMODE_G;
3609 }
3610
3611 return 0;
3612}
3613
3614static void b43legacy_wireless_core_detach(struct b43legacy_wldev *dev)
3615{
3616
3617
3618 b43legacy_release_firmware(dev);
3619}
3620
3621static int b43legacy_wireless_core_attach(struct b43legacy_wldev *dev)
3622{
3623 struct b43legacy_wl *wl = dev->wl;
3624 struct ssb_bus *bus = dev->dev->bus;
3625 struct pci_dev *pdev = (bus->bustype == SSB_BUSTYPE_PCI) ? bus->host_pci : NULL;
3626 int err;
3627 int have_bphy = 0;
3628 int have_gphy = 0;
3629 u32 tmp;
3630
3631
3632
3633
3634
3635
3636
3637
3638 err = ssb_bus_powerup(bus, 0);
3639 if (err) {
3640 b43legacyerr(wl, "Bus powerup failed\n");
3641 goto out;
3642 }
3643
3644 if (dev->dev->id.revision >= 5) {
3645 u32 tmshigh;
3646
3647 tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);
3648 have_gphy = !!(tmshigh & B43legacy_TMSHIGH_GPHY);
3649 if (!have_gphy)
3650 have_bphy = 1;
3651 } else if (dev->dev->id.revision == 4)
3652 have_gphy = 1;
3653 else
3654 have_bphy = 1;
3655
3656 dev->phy.gmode = (have_gphy || have_bphy);
3657 dev->phy.radio_on = true;
3658 tmp = dev->phy.gmode ? B43legacy_TMSLOW_GMODE : 0;
3659 b43legacy_wireless_core_reset(dev, tmp);
3660
3661 err = b43legacy_phy_versioning(dev);
3662 if (err)
3663 goto err_powerdown;
3664
3665 if (!pdev ||
3666 (pdev->device != 0x4312 &&
3667 pdev->device != 0x4319 &&
3668 pdev->device != 0x4324)) {
3669
3670 have_bphy = 0;
3671 have_gphy = 0;
3672 switch (dev->phy.type) {
3673 case B43legacy_PHYTYPE_B:
3674 have_bphy = 1;
3675 break;
3676 case B43legacy_PHYTYPE_G:
3677 have_gphy = 1;
3678 break;
3679 default:
3680 B43legacy_BUG_ON(1);
3681 }
3682 }
3683 dev->phy.gmode = (have_gphy || have_bphy);
3684 tmp = dev->phy.gmode ? B43legacy_TMSLOW_GMODE : 0;
3685 b43legacy_wireless_core_reset(dev, tmp);
3686
3687 err = b43legacy_validate_chipaccess(dev);
3688 if (err)
3689 goto err_powerdown;
3690 err = b43legacy_setup_modes(dev, have_bphy, have_gphy);
3691 if (err)
3692 goto err_powerdown;
3693
3694
3695 if (!wl->current_dev)
3696 wl->current_dev = dev;
3697 INIT_WORK(&dev->restart_work, b43legacy_chip_reset);
3698
3699 b43legacy_radio_turn_off(dev, 1);
3700 b43legacy_switch_analog(dev, 0);
3701 ssb_device_disable(dev->dev, 0);
3702 ssb_bus_may_powerdown(bus);
3703
3704out:
3705 return err;
3706
3707err_powerdown:
3708 ssb_bus_may_powerdown(bus);
3709 return err;
3710}
3711
3712static void b43legacy_one_core_detach(struct ssb_device *dev)
3713{
3714 struct b43legacy_wldev *wldev;
3715 struct b43legacy_wl *wl;
3716
3717
3718
3719
3720 wldev = ssb_get_drvdata(dev);
3721 wl = wldev->wl;
3722 b43legacy_debugfs_remove_device(wldev);
3723 b43legacy_wireless_core_detach(wldev);
3724 list_del(&wldev->list);
3725 wl->nr_devs--;
3726 ssb_set_drvdata(dev, NULL);
3727 kfree(wldev);
3728}
3729
3730static int b43legacy_one_core_attach(struct ssb_device *dev,
3731 struct b43legacy_wl *wl)
3732{
3733 struct b43legacy_wldev *wldev;
3734 int err = -ENOMEM;
3735
3736 wldev = kzalloc(sizeof(*wldev), GFP_KERNEL);
3737 if (!wldev)
3738 goto out;
3739
3740 wldev->dev = dev;
3741 wldev->wl = wl;
3742 b43legacy_set_status(wldev, B43legacy_STAT_UNINIT);
3743 wldev->bad_frames_preempt = modparam_bad_frames_preempt;
3744 tasklet_init(&wldev->isr_tasklet,
3745 b43legacy_interrupt_tasklet,
3746 (unsigned long)wldev);
3747 if (modparam_pio)
3748 wldev->__using_pio = true;
3749 INIT_LIST_HEAD(&wldev->list);
3750
3751 err = b43legacy_wireless_core_attach(wldev);
3752 if (err)
3753 goto err_kfree_wldev;
3754
3755 list_add(&wldev->list, &wl->devlist);
3756 wl->nr_devs++;
3757 ssb_set_drvdata(dev, wldev);
3758 b43legacy_debugfs_add_device(wldev);
3759out:
3760 return err;
3761
3762err_kfree_wldev:
3763 kfree(wldev);
3764 return err;
3765}
3766
3767static void b43legacy_sprom_fixup(struct ssb_bus *bus)
3768{
3769
3770 if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE &&
3771 bus->boardinfo.type == 0x4E &&
3772 bus->sprom.board_rev > 0x40)
3773 bus->sprom.boardflags_lo |= B43legacy_BFL_PACTRL;
3774}
3775
3776static void b43legacy_wireless_exit(struct ssb_device *dev,
3777 struct b43legacy_wl *wl)
3778{
3779 struct ieee80211_hw *hw = wl->hw;
3780
3781 ssb_set_devtypedata(dev, NULL);
3782 ieee80211_free_hw(hw);
3783}
3784
3785static int b43legacy_wireless_init(struct ssb_device *dev)
3786{
3787 struct ssb_sprom *sprom = &dev->bus->sprom;
3788 struct ieee80211_hw *hw;
3789 struct b43legacy_wl *wl;
3790 int err = -ENOMEM;
3791 int queue_num;
3792
3793 b43legacy_sprom_fixup(dev->bus);
3794
3795 hw = ieee80211_alloc_hw(sizeof(*wl), &b43legacy_hw_ops);
3796 if (!hw) {
3797 b43legacyerr(NULL, "Could not allocate ieee80211 device\n");
3798 goto out;
3799 }
3800
3801
3802 ieee80211_hw_set(hw, RX_INCLUDES_FCS);
3803 ieee80211_hw_set(hw, SIGNAL_DBM);
3804
3805 hw->wiphy->interface_modes =
3806 BIT(NL80211_IFTYPE_AP) |
3807 BIT(NL80211_IFTYPE_STATION) |
3808#ifdef CONFIG_WIRELESS_WDS
3809 BIT(NL80211_IFTYPE_WDS) |
3810#endif
3811 BIT(NL80211_IFTYPE_ADHOC);
3812 hw->queues = 1;
3813 hw->max_rates = 2;
3814 SET_IEEE80211_DEV(hw, dev->dev);
3815 if (is_valid_ether_addr(sprom->et1mac))
3816 SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
3817 else
3818 SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac);
3819
3820 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
3821
3822
3823 wl = hw_to_b43legacy_wl(hw);
3824 memset(wl, 0, sizeof(*wl));
3825 wl->hw = hw;
3826 spin_lock_init(&wl->irq_lock);
3827 spin_lock_init(&wl->leds_lock);
3828 mutex_init(&wl->mutex);
3829 INIT_LIST_HEAD(&wl->devlist);
3830 INIT_WORK(&wl->beacon_update_trigger, b43legacy_beacon_update_trigger_work);
3831 INIT_WORK(&wl->tx_work, b43legacy_tx_work);
3832
3833
3834 for (queue_num = 0; queue_num < B43legacy_QOS_QUEUE_NUM; queue_num++) {
3835 skb_queue_head_init(&wl->tx_queue[queue_num]);
3836 wl->tx_queue_stopped[queue_num] = 0;
3837 }
3838
3839 ssb_set_devtypedata(dev, wl);
3840 b43legacyinfo(wl, "Broadcom %04X WLAN found (core revision %u)\n",
3841 dev->bus->chip_id, dev->id.revision);
3842 err = 0;
3843out:
3844 return err;
3845}
3846
3847static int b43legacy_probe(struct ssb_device *dev,
3848 const struct ssb_device_id *id)
3849{
3850 struct b43legacy_wl *wl;
3851 int err;
3852 int first = 0;
3853
3854 wl = ssb_get_devtypedata(dev);
3855 if (!wl) {
3856
3857 first = 1;
3858 err = b43legacy_wireless_init(dev);
3859 if (err)
3860 goto out;
3861 wl = ssb_get_devtypedata(dev);
3862 B43legacy_WARN_ON(!wl);
3863 }
3864 err = b43legacy_one_core_attach(dev, wl);
3865 if (err)
3866 goto err_wireless_exit;
3867
3868
3869 INIT_WORK(&wl->firmware_load, b43legacy_request_firmware);
3870 schedule_work(&wl->firmware_load);
3871
3872out:
3873 return err;
3874
3875err_wireless_exit:
3876 if (first)
3877 b43legacy_wireless_exit(dev, wl);
3878 return err;
3879}
3880
3881static void b43legacy_remove(struct ssb_device *dev)
3882{
3883 struct b43legacy_wl *wl = ssb_get_devtypedata(dev);
3884 struct b43legacy_wldev *wldev = ssb_get_drvdata(dev);
3885
3886
3887
3888 cancel_work_sync(&wldev->restart_work);
3889 cancel_work_sync(&wl->firmware_load);
3890 complete(&wldev->fw_load_complete);
3891
3892 B43legacy_WARN_ON(!wl);
3893 if (!wldev->fw.ucode)
3894 return;
3895 if (wl->current_dev == wldev)
3896 ieee80211_unregister_hw(wl->hw);
3897
3898 b43legacy_one_core_detach(dev);
3899
3900 if (list_empty(&wl->devlist))
3901
3902
3903
3904 b43legacy_wireless_exit(dev, wl);
3905}
3906
3907
3908void b43legacy_controller_restart(struct b43legacy_wldev *dev,
3909 const char *reason)
3910{
3911
3912 if (b43legacy_status(dev) < B43legacy_STAT_INITIALIZED)
3913 return;
3914 b43legacyinfo(dev->wl, "Controller RESET (%s) ...\n", reason);
3915 ieee80211_queue_work(dev->wl->hw, &dev->restart_work);
3916}
3917
3918#ifdef CONFIG_PM
3919
3920static int b43legacy_suspend(struct ssb_device *dev, pm_message_t state)
3921{
3922 struct b43legacy_wldev *wldev = ssb_get_drvdata(dev);
3923 struct b43legacy_wl *wl = wldev->wl;
3924
3925 b43legacydbg(wl, "Suspending...\n");
3926
3927 mutex_lock(&wl->mutex);
3928 wldev->suspend_init_status = b43legacy_status(wldev);
3929 if (wldev->suspend_init_status >= B43legacy_STAT_STARTED)
3930 b43legacy_wireless_core_stop(wldev);
3931 if (wldev->suspend_init_status >= B43legacy_STAT_INITIALIZED)
3932 b43legacy_wireless_core_exit(wldev);
3933 mutex_unlock(&wl->mutex);
3934
3935 b43legacydbg(wl, "Device suspended.\n");
3936
3937 return 0;
3938}
3939
3940static int b43legacy_resume(struct ssb_device *dev)
3941{
3942 struct b43legacy_wldev *wldev = ssb_get_drvdata(dev);
3943 struct b43legacy_wl *wl = wldev->wl;
3944 int err = 0;
3945
3946 b43legacydbg(wl, "Resuming...\n");
3947
3948 mutex_lock(&wl->mutex);
3949 if (wldev->suspend_init_status >= B43legacy_STAT_INITIALIZED) {
3950 err = b43legacy_wireless_core_init(wldev);
3951 if (err) {
3952 b43legacyerr(wl, "Resume failed at core init\n");
3953 goto out;
3954 }
3955 }
3956 if (wldev->suspend_init_status >= B43legacy_STAT_STARTED) {
3957 err = b43legacy_wireless_core_start(wldev);
3958 if (err) {
3959 b43legacy_wireless_core_exit(wldev);
3960 b43legacyerr(wl, "Resume failed at core start\n");
3961 goto out;
3962 }
3963 }
3964
3965 b43legacydbg(wl, "Device resumed.\n");
3966out:
3967 mutex_unlock(&wl->mutex);
3968 return err;
3969}
3970
3971#else
3972# define b43legacy_suspend NULL
3973# define b43legacy_resume NULL
3974#endif
3975
3976static struct ssb_driver b43legacy_ssb_driver = {
3977 .name = KBUILD_MODNAME,
3978 .id_table = b43legacy_ssb_tbl,
3979 .probe = b43legacy_probe,
3980 .remove = b43legacy_remove,
3981 .suspend = b43legacy_suspend,
3982 .resume = b43legacy_resume,
3983};
3984
3985static void b43legacy_print_driverinfo(void)
3986{
3987 const char *feat_pci = "", *feat_leds = "",
3988 *feat_pio = "", *feat_dma = "";
3989
3990#ifdef CONFIG_B43LEGACY_PCI_AUTOSELECT
3991 feat_pci = "P";
3992#endif
3993#ifdef CONFIG_B43LEGACY_LEDS
3994 feat_leds = "L";
3995#endif
3996#ifdef CONFIG_B43LEGACY_PIO
3997 feat_pio = "I";
3998#endif
3999#ifdef CONFIG_B43LEGACY_DMA
4000 feat_dma = "D";
4001#endif
4002 printk(KERN_INFO "Broadcom 43xx-legacy driver loaded "
4003 "[ Features: %s%s%s%s ]\n",
4004 feat_pci, feat_leds, feat_pio, feat_dma);
4005}
4006
4007static int __init b43legacy_init(void)
4008{
4009 int err;
4010
4011 b43legacy_debugfs_init();
4012
4013 err = ssb_driver_register(&b43legacy_ssb_driver);
4014 if (err)
4015 goto err_dfs_exit;
4016
4017 b43legacy_print_driverinfo();
4018
4019 return err;
4020
4021err_dfs_exit:
4022 b43legacy_debugfs_exit();
4023 return err;
4024}
4025
4026static void __exit b43legacy_exit(void)
4027{
4028 ssb_driver_unregister(&b43legacy_ssb_driver);
4029 b43legacy_debugfs_exit();
4030}
4031
4032module_init(b43legacy_init)
4033module_exit(b43legacy_exit)
4034
