1d8d98324d15f3924cca0ccad39e9433ccc6c2fa
[linux-2.6.git] / drivers / net / wireless / b43 / main.c
1 /*
2
3   Broadcom B43 wireless driver
4
5   Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>
6   Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it>
7   Copyright (c) 2005-2009 Michael Buesch <mb@bu3sch.de>
8   Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
9   Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
10
11   SDIO support
12   Copyright (c) 2009 Albert Herranz <albert_herranz@yahoo.es>
13
14   Some parts of the code in this file are derived from the ipw2200
15   driver  Copyright(c) 2003 - 2004 Intel Corporation.
16
17   This program is free software; you can redistribute it and/or modify
18   it under the terms of the GNU General Public License as published by
19   the Free Software Foundation; either version 2 of the License, or
20   (at your option) any later version.
21
22   This program is distributed in the hope that it will be useful,
23   but WITHOUT ANY WARRANTY; without even the implied warranty of
24   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
25   GNU General Public License for more details.
26
27   You should have received a copy of the GNU General Public License
28   along with this program; see the file COPYING.  If not, write to
29   the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
30   Boston, MA 02110-1301, USA.
31
32 */
33
34 #include <linux/delay.h>
35 #include <linux/init.h>
36 #include <linux/moduleparam.h>
37 #include <linux/if_arp.h>
38 #include <linux/etherdevice.h>
39 #include <linux/firmware.h>
40 #include <linux/wireless.h>
41 #include <linux/workqueue.h>
42 #include <linux/skbuff.h>
43 #include <linux/io.h>
44 #include <linux/dma-mapping.h>
45 #include <linux/slab.h>
46 #include <asm/unaligned.h>
47
48 #include "b43.h"
49 #include "main.h"
50 #include "debugfs.h"
51 #include "phy_common.h"
52 #include "phy_g.h"
53 #include "phy_n.h"
54 #include "dma.h"
55 #include "pio.h"
56 #include "sysfs.h"
57 #include "xmit.h"
58 #include "lo.h"
59 #include "pcmcia.h"
60 #include "sdio.h"
61 #include <linux/mmc/sdio_func.h>
62
63 MODULE_DESCRIPTION("Broadcom B43 wireless driver");
64 MODULE_AUTHOR("Martin Langer");
65 MODULE_AUTHOR("Stefano Brivio");
66 MODULE_AUTHOR("Michael Buesch");
67 MODULE_AUTHOR("Gábor Stefanik");
68 MODULE_LICENSE("GPL");
69
70 MODULE_FIRMWARE(B43_SUPPORTED_FIRMWARE_ID);
71 MODULE_FIRMWARE("b43/ucode11.fw");
72 MODULE_FIRMWARE("b43/ucode13.fw");
73 MODULE_FIRMWARE("b43/ucode14.fw");
74 MODULE_FIRMWARE("b43/ucode15.fw");
75 MODULE_FIRMWARE("b43/ucode16_mimo.fw");
76 MODULE_FIRMWARE("b43/ucode5.fw");
77 MODULE_FIRMWARE("b43/ucode9.fw");
78
79 static int modparam_bad_frames_preempt;
80 module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444);
81 MODULE_PARM_DESC(bad_frames_preempt,
82                  "enable(1) / disable(0) Bad Frames Preemption");
83
84 static char modparam_fwpostfix[16];
85 module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444);
86 MODULE_PARM_DESC(fwpostfix, "Postfix for the .fw files to load.");
87
88 static int modparam_hwpctl;
89 module_param_named(hwpctl, modparam_hwpctl, int, 0444);
90 MODULE_PARM_DESC(hwpctl, "Enable hardware-side power control (default off)");
91
92 static int modparam_nohwcrypt;
93 module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444);
94 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
95
96 static int modparam_hwtkip;
97 module_param_named(hwtkip, modparam_hwtkip, int, 0444);
98 MODULE_PARM_DESC(hwtkip, "Enable hardware tkip.");
99
100 static int modparam_qos = 1;
101 module_param_named(qos, modparam_qos, int, 0444);
102 MODULE_PARM_DESC(qos, "Enable QOS support (default on)");
103
104 static int modparam_btcoex = 1;
105 module_param_named(btcoex, modparam_btcoex, int, 0444);
106 MODULE_PARM_DESC(btcoex, "Enable Bluetooth coexistence (default on)");
107
108 int b43_modparam_verbose = B43_VERBOSITY_DEFAULT;
109 module_param_named(verbose, b43_modparam_verbose, int, 0644);
110 MODULE_PARM_DESC(verbose, "Log message verbosity: 0=error, 1=warn, 2=info(default), 3=debug");
111
112 static int b43_modparam_pio = B43_PIO_DEFAULT;
113 module_param_named(pio, b43_modparam_pio, int, 0644);
114 MODULE_PARM_DESC(pio, "Use PIO accesses by default: 0=DMA, 1=PIO");
115
116 #ifdef CONFIG_B43_BCMA
117 static const struct bcma_device_id b43_bcma_tbl[] = {
118         BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x17, BCMA_ANY_CLASS),
119         BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x18, BCMA_ANY_CLASS),
120         BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 0x1D, BCMA_ANY_CLASS),
121         BCMA_CORETABLE_END
122 };
123 MODULE_DEVICE_TABLE(bcma, b43_bcma_tbl);
124 #endif
125
126 static const struct ssb_device_id b43_ssb_tbl[] = {
127         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5),
128         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6),
129         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7),
130         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9),
131         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10),
132         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11),
133         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 12),
134         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13),
135         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 15),
136         SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 16),
137         SSB_DEVTABLE_END
138 };
139
140 MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl);
141
142 /* Channel and ratetables are shared for all devices.
143  * They can't be const, because ieee80211 puts some precalculated
144  * data in there. This data is the same for all devices, so we don't
145  * get concurrency issues */
146 #define RATETAB_ENT(_rateid, _flags) \
147         {                                                               \
148                 .bitrate        = B43_RATE_TO_BASE100KBPS(_rateid),     \
149                 .hw_value       = (_rateid),                            \
150                 .flags          = (_flags),                             \
151         }
152
153 /*
154  * NOTE: When changing this, sync with xmit.c's
155  *       b43_plcp_get_bitrate_idx_* functions!
156  */
157 static struct ieee80211_rate __b43_ratetable[] = {
158         RATETAB_ENT(B43_CCK_RATE_1MB, 0),
159         RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE),
160         RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE),
161         RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE),
162         RATETAB_ENT(B43_OFDM_RATE_6MB, 0),
163         RATETAB_ENT(B43_OFDM_RATE_9MB, 0),
164         RATETAB_ENT(B43_OFDM_RATE_12MB, 0),
165         RATETAB_ENT(B43_OFDM_RATE_18MB, 0),
166         RATETAB_ENT(B43_OFDM_RATE_24MB, 0),
167         RATETAB_ENT(B43_OFDM_RATE_36MB, 0),
168         RATETAB_ENT(B43_OFDM_RATE_48MB, 0),
169         RATETAB_ENT(B43_OFDM_RATE_54MB, 0),
170 };
171
172 #define b43_a_ratetable         (__b43_ratetable + 4)
173 #define b43_a_ratetable_size    8
174 #define b43_b_ratetable         (__b43_ratetable + 0)
175 #define b43_b_ratetable_size    4
176 #define b43_g_ratetable         (__b43_ratetable + 0)
177 #define b43_g_ratetable_size    12
178
179 #define CHAN4G(_channel, _freq, _flags) {                       \
180         .band                   = IEEE80211_BAND_2GHZ,          \
181         .center_freq            = (_freq),                      \
182         .hw_value               = (_channel),                   \
183         .flags                  = (_flags),                     \
184         .max_antenna_gain       = 0,                            \
185         .max_power              = 30,                           \
186 }
187 static struct ieee80211_channel b43_2ghz_chantable[] = {
188         CHAN4G(1, 2412, 0),
189         CHAN4G(2, 2417, 0),
190         CHAN4G(3, 2422, 0),
191         CHAN4G(4, 2427, 0),
192         CHAN4G(5, 2432, 0),
193         CHAN4G(6, 2437, 0),
194         CHAN4G(7, 2442, 0),
195         CHAN4G(8, 2447, 0),
196         CHAN4G(9, 2452, 0),
197         CHAN4G(10, 2457, 0),
198         CHAN4G(11, 2462, 0),
199         CHAN4G(12, 2467, 0),
200         CHAN4G(13, 2472, 0),
201         CHAN4G(14, 2484, 0),
202 };
203 #undef CHAN4G
204
205 #define CHAN5G(_channel, _flags) {                              \
206         .band                   = IEEE80211_BAND_5GHZ,          \
207         .center_freq            = 5000 + (5 * (_channel)),      \
208         .hw_value               = (_channel),                   \
209         .flags                  = (_flags),                     \
210         .max_antenna_gain       = 0,                            \
211         .max_power              = 30,                           \
212 }
213 static struct ieee80211_channel b43_5ghz_nphy_chantable[] = {
214         CHAN5G(32, 0),          CHAN5G(34, 0),
215         CHAN5G(36, 0),          CHAN5G(38, 0),
216         CHAN5G(40, 0),          CHAN5G(42, 0),
217         CHAN5G(44, 0),          CHAN5G(46, 0),
218         CHAN5G(48, 0),          CHAN5G(50, 0),
219         CHAN5G(52, 0),          CHAN5G(54, 0),
220         CHAN5G(56, 0),          CHAN5G(58, 0),
221         CHAN5G(60, 0),          CHAN5G(62, 0),
222         CHAN5G(64, 0),          CHAN5G(66, 0),
223         CHAN5G(68, 0),          CHAN5G(70, 0),
224         CHAN5G(72, 0),          CHAN5G(74, 0),
225         CHAN5G(76, 0),          CHAN5G(78, 0),
226         CHAN5G(80, 0),          CHAN5G(82, 0),
227         CHAN5G(84, 0),          CHAN5G(86, 0),
228         CHAN5G(88, 0),          CHAN5G(90, 0),
229         CHAN5G(92, 0),          CHAN5G(94, 0),
230         CHAN5G(96, 0),          CHAN5G(98, 0),
231         CHAN5G(100, 0),         CHAN5G(102, 0),
232         CHAN5G(104, 0),         CHAN5G(106, 0),
233         CHAN5G(108, 0),         CHAN5G(110, 0),
234         CHAN5G(112, 0),         CHAN5G(114, 0),
235         CHAN5G(116, 0),         CHAN5G(118, 0),
236         CHAN5G(120, 0),         CHAN5G(122, 0),
237         CHAN5G(124, 0),         CHAN5G(126, 0),
238         CHAN5G(128, 0),         CHAN5G(130, 0),
239         CHAN5G(132, 0),         CHAN5G(134, 0),
240         CHAN5G(136, 0),         CHAN5G(138, 0),
241         CHAN5G(140, 0),         CHAN5G(142, 0),
242         CHAN5G(144, 0),         CHAN5G(145, 0),
243         CHAN5G(146, 0),         CHAN5G(147, 0),
244         CHAN5G(148, 0),         CHAN5G(149, 0),
245         CHAN5G(150, 0),         CHAN5G(151, 0),
246         CHAN5G(152, 0),         CHAN5G(153, 0),
247         CHAN5G(154, 0),         CHAN5G(155, 0),
248         CHAN5G(156, 0),         CHAN5G(157, 0),
249         CHAN5G(158, 0),         CHAN5G(159, 0),
250         CHAN5G(160, 0),         CHAN5G(161, 0),
251         CHAN5G(162, 0),         CHAN5G(163, 0),
252         CHAN5G(164, 0),         CHAN5G(165, 0),
253         CHAN5G(166, 0),         CHAN5G(168, 0),
254         CHAN5G(170, 0),         CHAN5G(172, 0),
255         CHAN5G(174, 0),         CHAN5G(176, 0),
256         CHAN5G(178, 0),         CHAN5G(180, 0),
257         CHAN5G(182, 0),         CHAN5G(184, 0),
258         CHAN5G(186, 0),         CHAN5G(188, 0),
259         CHAN5G(190, 0),         CHAN5G(192, 0),
260         CHAN5G(194, 0),         CHAN5G(196, 0),
261         CHAN5G(198, 0),         CHAN5G(200, 0),
262         CHAN5G(202, 0),         CHAN5G(204, 0),
263         CHAN5G(206, 0),         CHAN5G(208, 0),
264         CHAN5G(210, 0),         CHAN5G(212, 0),
265         CHAN5G(214, 0),         CHAN5G(216, 0),
266         CHAN5G(218, 0),         CHAN5G(220, 0),
267         CHAN5G(222, 0),         CHAN5G(224, 0),
268         CHAN5G(226, 0),         CHAN5G(228, 0),
269 };
270
271 static struct ieee80211_channel b43_5ghz_aphy_chantable[] = {
272         CHAN5G(34, 0),          CHAN5G(36, 0),
273         CHAN5G(38, 0),          CHAN5G(40, 0),
274         CHAN5G(42, 0),          CHAN5G(44, 0),
275         CHAN5G(46, 0),          CHAN5G(48, 0),
276         CHAN5G(52, 0),          CHAN5G(56, 0),
277         CHAN5G(60, 0),          CHAN5G(64, 0),
278         CHAN5G(100, 0),         CHAN5G(104, 0),
279         CHAN5G(108, 0),         CHAN5G(112, 0),
280         CHAN5G(116, 0),         CHAN5G(120, 0),
281         CHAN5G(124, 0),         CHAN5G(128, 0),
282         CHAN5G(132, 0),         CHAN5G(136, 0),
283         CHAN5G(140, 0),         CHAN5G(149, 0),
284         CHAN5G(153, 0),         CHAN5G(157, 0),
285         CHAN5G(161, 0),         CHAN5G(165, 0),
286         CHAN5G(184, 0),         CHAN5G(188, 0),
287         CHAN5G(192, 0),         CHAN5G(196, 0),
288         CHAN5G(200, 0),         CHAN5G(204, 0),
289         CHAN5G(208, 0),         CHAN5G(212, 0),
290         CHAN5G(216, 0),
291 };
292 #undef CHAN5G
293
294 static struct ieee80211_supported_band b43_band_5GHz_nphy = {
295         .band           = IEEE80211_BAND_5GHZ,
296         .channels       = b43_5ghz_nphy_chantable,
297         .n_channels     = ARRAY_SIZE(b43_5ghz_nphy_chantable),
298         .bitrates       = b43_a_ratetable,
299         .n_bitrates     = b43_a_ratetable_size,
300 };
301
302 static struct ieee80211_supported_band b43_band_5GHz_aphy = {
303         .band           = IEEE80211_BAND_5GHZ,
304         .channels       = b43_5ghz_aphy_chantable,
305         .n_channels     = ARRAY_SIZE(b43_5ghz_aphy_chantable),
306         .bitrates       = b43_a_ratetable,
307         .n_bitrates     = b43_a_ratetable_size,
308 };
309
310 static struct ieee80211_supported_band b43_band_2GHz = {
311         .band           = IEEE80211_BAND_2GHZ,
312         .channels       = b43_2ghz_chantable,
313         .n_channels     = ARRAY_SIZE(b43_2ghz_chantable),
314         .bitrates       = b43_g_ratetable,
315         .n_bitrates     = b43_g_ratetable_size,
316 };
317
318 static void b43_wireless_core_exit(struct b43_wldev *dev);
319 static int b43_wireless_core_init(struct b43_wldev *dev);
320 static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev);
321 static int b43_wireless_core_start(struct b43_wldev *dev);
322
323 static int b43_ratelimit(struct b43_wl *wl)
324 {
325         if (!wl || !wl->current_dev)
326                 return 1;
327         if (b43_status(wl->current_dev) < B43_STAT_STARTED)
328                 return 1;
329         /* We are up and running.
330          * Ratelimit the messages to avoid DoS over the net. */
331         return net_ratelimit();
332 }
333
334 void b43info(struct b43_wl *wl, const char *fmt, ...)
335 {
336         struct va_format vaf;
337         va_list args;
338
339         if (b43_modparam_verbose < B43_VERBOSITY_INFO)
340                 return;
341         if (!b43_ratelimit(wl))
342                 return;
343
344         va_start(args, fmt);
345
346         vaf.fmt = fmt;
347         vaf.va = &args;
348
349         printk(KERN_INFO "b43-%s: %pV",
350                (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
351
352         va_end(args);
353 }
354
355 void b43err(struct b43_wl *wl, const char *fmt, ...)
356 {
357         struct va_format vaf;
358         va_list args;
359
360         if (b43_modparam_verbose < B43_VERBOSITY_ERROR)
361                 return;
362         if (!b43_ratelimit(wl))
363                 return;
364
365         va_start(args, fmt);
366
367         vaf.fmt = fmt;
368         vaf.va = &args;
369
370         printk(KERN_ERR "b43-%s ERROR: %pV",
371                (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
372
373         va_end(args);
374 }
375
376 void b43warn(struct b43_wl *wl, const char *fmt, ...)
377 {
378         struct va_format vaf;
379         va_list args;
380
381         if (b43_modparam_verbose < B43_VERBOSITY_WARN)
382                 return;
383         if (!b43_ratelimit(wl))
384                 return;
385
386         va_start(args, fmt);
387
388         vaf.fmt = fmt;
389         vaf.va = &args;
390
391         printk(KERN_WARNING "b43-%s warning: %pV",
392                (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
393
394         va_end(args);
395 }
396
397 void b43dbg(struct b43_wl *wl, const char *fmt, ...)
398 {
399         struct va_format vaf;
400         va_list args;
401
402         if (b43_modparam_verbose < B43_VERBOSITY_DEBUG)
403                 return;
404
405         va_start(args, fmt);
406
407         vaf.fmt = fmt;
408         vaf.va = &args;
409
410         printk(KERN_DEBUG "b43-%s debug: %pV",
411                (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
412
413         va_end(args);
414 }
415
416 static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val)
417 {
418         u32 macctl;
419
420         B43_WARN_ON(offset % 4 != 0);
421
422         macctl = b43_read32(dev, B43_MMIO_MACCTL);
423         if (macctl & B43_MACCTL_BE)
424                 val = swab32(val);
425
426         b43_write32(dev, B43_MMIO_RAM_CONTROL, offset);
427         mmiowb();
428         b43_write32(dev, B43_MMIO_RAM_DATA, val);
429 }
430
431 static inline void b43_shm_control_word(struct b43_wldev *dev,
432                                         u16 routing, u16 offset)
433 {
434         u32 control;
435
436         /* "offset" is the WORD offset. */
437         control = routing;
438         control <<= 16;
439         control |= offset;
440         b43_write32(dev, B43_MMIO_SHM_CONTROL, control);
441 }
442
443 u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset)
444 {
445         u32 ret;
446
447         if (routing == B43_SHM_SHARED) {
448                 B43_WARN_ON(offset & 0x0001);
449                 if (offset & 0x0003) {
450                         /* Unaligned access */
451                         b43_shm_control_word(dev, routing, offset >> 2);
452                         ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
453                         b43_shm_control_word(dev, routing, (offset >> 2) + 1);
454                         ret |= ((u32)b43_read16(dev, B43_MMIO_SHM_DATA)) << 16;
455
456                         goto out;
457                 }
458                 offset >>= 2;
459         }
460         b43_shm_control_word(dev, routing, offset);
461         ret = b43_read32(dev, B43_MMIO_SHM_DATA);
462 out:
463         return ret;
464 }
465
466 u16 b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset)
467 {
468         u16 ret;
469
470         if (routing == B43_SHM_SHARED) {
471                 B43_WARN_ON(offset & 0x0001);
472                 if (offset & 0x0003) {
473                         /* Unaligned access */
474                         b43_shm_control_word(dev, routing, offset >> 2);
475                         ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
476
477                         goto out;
478                 }
479                 offset >>= 2;
480         }
481         b43_shm_control_word(dev, routing, offset);
482         ret = b43_read16(dev, B43_MMIO_SHM_DATA);
483 out:
484         return ret;
485 }
486
487 void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value)
488 {
489         if (routing == B43_SHM_SHARED) {
490                 B43_WARN_ON(offset & 0x0001);
491                 if (offset & 0x0003) {
492                         /* Unaligned access */
493                         b43_shm_control_word(dev, routing, offset >> 2);
494                         b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED,
495                                     value & 0xFFFF);
496                         b43_shm_control_word(dev, routing, (offset >> 2) + 1);
497                         b43_write16(dev, B43_MMIO_SHM_DATA,
498                                     (value >> 16) & 0xFFFF);
499                         return;
500                 }
501                 offset >>= 2;
502         }
503         b43_shm_control_word(dev, routing, offset);
504         b43_write32(dev, B43_MMIO_SHM_DATA, value);
505 }
506
507 void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value)
508 {
509         if (routing == B43_SHM_SHARED) {
510                 B43_WARN_ON(offset & 0x0001);
511                 if (offset & 0x0003) {
512                         /* Unaligned access */
513                         b43_shm_control_word(dev, routing, offset >> 2);
514                         b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value);
515                         return;
516                 }
517                 offset >>= 2;
518         }
519         b43_shm_control_word(dev, routing, offset);
520         b43_write16(dev, B43_MMIO_SHM_DATA, value);
521 }
522
523 /* Read HostFlags */
524 u64 b43_hf_read(struct b43_wldev *dev)
525 {
526         u64 ret;
527
528         ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI);
529         ret <<= 16;
530         ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI);
531         ret <<= 16;
532         ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO);
533
534         return ret;
535 }
536
537 /* Write HostFlags */
538 void b43_hf_write(struct b43_wldev *dev, u64 value)
539 {
540         u16 lo, mi, hi;
541
542         lo = (value & 0x00000000FFFFULL);
543         mi = (value & 0x0000FFFF0000ULL) >> 16;
544         hi = (value & 0xFFFF00000000ULL) >> 32;
545         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO, lo);
546         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI, mi);
547         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi);
548 }
549
550 /* Read the firmware capabilities bitmask (Opensource firmware only) */
551 static u16 b43_fwcapa_read(struct b43_wldev *dev)
552 {
553         B43_WARN_ON(!dev->fw.opensource);
554         return b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_FWCAPA);
555 }
556
557 void b43_tsf_read(struct b43_wldev *dev, u64 *tsf)
558 {
559         u32 low, high;
560
561         B43_WARN_ON(dev->dev->core_rev < 3);
562
563         /* The hardware guarantees us an atomic read, if we
564          * read the low register first. */
565         low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW);
566         high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH);
567
568         *tsf = high;
569         *tsf <<= 32;
570         *tsf |= low;
571 }
572
573 static void b43_time_lock(struct b43_wldev *dev)
574 {
575         u32 macctl;
576
577         macctl = b43_read32(dev, B43_MMIO_MACCTL);
578         macctl |= B43_MACCTL_TBTTHOLD;
579         b43_write32(dev, B43_MMIO_MACCTL, macctl);
580         /* Commit the write */
581         b43_read32(dev, B43_MMIO_MACCTL);
582 }
583
584 static void b43_time_unlock(struct b43_wldev *dev)
585 {
586         u32 macctl;
587
588         macctl = b43_read32(dev, B43_MMIO_MACCTL);
589         macctl &= ~B43_MACCTL_TBTTHOLD;
590         b43_write32(dev, B43_MMIO_MACCTL, macctl);
591         /* Commit the write */
592         b43_read32(dev, B43_MMIO_MACCTL);
593 }
594
595 static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf)
596 {
597         u32 low, high;
598
599         B43_WARN_ON(dev->dev->core_rev < 3);
600
601         low = tsf;
602         high = (tsf >> 32);
603         /* The hardware guarantees us an atomic write, if we
604          * write the low register first. */
605         b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, low);
606         mmiowb();
607         b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, high);
608         mmiowb();
609 }
610
611 void b43_tsf_write(struct b43_wldev *dev, u64 tsf)
612 {
613         b43_time_lock(dev);
614         b43_tsf_write_locked(dev, tsf);
615         b43_time_unlock(dev);
616 }
617
618 static
619 void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 *mac)
620 {
621         static const u8 zero_addr[ETH_ALEN] = { 0 };
622         u16 data;
623
624         if (!mac)
625                 mac = zero_addr;
626
627         offset |= 0x0020;
628         b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset);
629
630         data = mac[0];
631         data |= mac[1] << 8;
632         b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
633         data = mac[2];
634         data |= mac[3] << 8;
635         b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
636         data = mac[4];
637         data |= mac[5] << 8;
638         b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
639 }
640
641 static void b43_write_mac_bssid_templates(struct b43_wldev *dev)
642 {
643         const u8 *mac;
644         const u8 *bssid;
645         u8 mac_bssid[ETH_ALEN * 2];
646         int i;
647         u32 tmp;
648
649         bssid = dev->wl->bssid;
650         mac = dev->wl->mac_addr;
651
652         b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid);
653
654         memcpy(mac_bssid, mac, ETH_ALEN);
655         memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN);
656
657         /* Write our MAC address and BSSID to template ram */
658         for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) {
659                 tmp = (u32) (mac_bssid[i + 0]);
660                 tmp |= (u32) (mac_bssid[i + 1]) << 8;
661                 tmp |= (u32) (mac_bssid[i + 2]) << 16;
662                 tmp |= (u32) (mac_bssid[i + 3]) << 24;
663                 b43_ram_write(dev, 0x20 + i, tmp);
664         }
665 }
666
667 static void b43_upload_card_macaddress(struct b43_wldev *dev)
668 {
669         b43_write_mac_bssid_templates(dev);
670         b43_macfilter_set(dev, B43_MACFILTER_SELF, dev->wl->mac_addr);
671 }
672
673 static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time)
674 {
675         /* slot_time is in usec. */
676         /* This test used to exit for all but a G PHY. */
677         if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ)
678                 return;
679         b43_write16(dev, B43_MMIO_IFSSLOT, 510 + slot_time);
680         /* Shared memory location 0x0010 is the slot time and should be
681          * set to slot_time; however, this register is initially 0 and changing
682          * the value adversely affects the transmit rate for BCM4311
683          * devices. Until this behavior is unterstood, delete this step
684          *
685          * b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time);
686          */
687 }
688
689 static void b43_short_slot_timing_enable(struct b43_wldev *dev)
690 {
691         b43_set_slot_time(dev, 9);
692 }
693
694 static void b43_short_slot_timing_disable(struct b43_wldev *dev)
695 {
696         b43_set_slot_time(dev, 20);
697 }
698
699 /* DummyTransmission function, as documented on
700  * http://bcm-v4.sipsolutions.net/802.11/DummyTransmission
701  */
702 void b43_dummy_transmission(struct b43_wldev *dev, bool ofdm, bool pa_on)
703 {
704         struct b43_phy *phy = &dev->phy;
705         unsigned int i, max_loop;
706         u16 value;
707         u32 buffer[5] = {
708                 0x00000000,
709                 0x00D40000,
710                 0x00000000,
711                 0x01000000,
712                 0x00000000,
713         };
714
715         if (ofdm) {
716                 max_loop = 0x1E;
717                 buffer[0] = 0x000201CC;
718         } else {
719                 max_loop = 0xFA;
720                 buffer[0] = 0x000B846E;
721         }
722
723         for (i = 0; i < 5; i++)
724                 b43_ram_write(dev, i * 4, buffer[i]);
725
726         b43_write16(dev, 0x0568, 0x0000);
727         if (dev->dev->core_rev < 11)
728                 b43_write16(dev, 0x07C0, 0x0000);
729         else
730                 b43_write16(dev, 0x07C0, 0x0100);
731         value = (ofdm ? 0x41 : 0x40);
732         b43_write16(dev, 0x050C, value);
733         if ((phy->type == B43_PHYTYPE_N) || (phy->type == B43_PHYTYPE_LP))
734                 b43_write16(dev, 0x0514, 0x1A02);
735         b43_write16(dev, 0x0508, 0x0000);
736         b43_write16(dev, 0x050A, 0x0000);
737         b43_write16(dev, 0x054C, 0x0000);
738         b43_write16(dev, 0x056A, 0x0014);
739         b43_write16(dev, 0x0568, 0x0826);
740         b43_write16(dev, 0x0500, 0x0000);
741         if (!pa_on && (phy->type == B43_PHYTYPE_N)) {
742                 //SPEC TODO
743         }
744
745         switch (phy->type) {
746         case B43_PHYTYPE_N:
747                 b43_write16(dev, 0x0502, 0x00D0);
748                 break;
749         case B43_PHYTYPE_LP:
750                 b43_write16(dev, 0x0502, 0x0050);
751                 break;
752         default:
753                 b43_write16(dev, 0x0502, 0x0030);
754         }
755
756         if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
757                 b43_radio_write16(dev, 0x0051, 0x0017);
758         for (i = 0x00; i < max_loop; i++) {
759                 value = b43_read16(dev, 0x050E);
760                 if (value & 0x0080)
761                         break;
762                 udelay(10);
763         }
764         for (i = 0x00; i < 0x0A; i++) {
765                 value = b43_read16(dev, 0x050E);
766                 if (value & 0x0400)
767                         break;
768                 udelay(10);
769         }
770         for (i = 0x00; i < 0x19; i++) {
771                 value = b43_read16(dev, 0x0690);
772                 if (!(value & 0x0100))
773                         break;
774                 udelay(10);
775         }
776         if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
777                 b43_radio_write16(dev, 0x0051, 0x0037);
778 }
779
780 static void key_write(struct b43_wldev *dev,
781                       u8 index, u8 algorithm, const u8 *key)
782 {
783         unsigned int i;
784         u32 offset;
785         u16 value;
786         u16 kidx;
787
788         /* Key index/algo block */
789         kidx = b43_kidx_to_fw(dev, index);
790         value = ((kidx << 4) | algorithm);
791         b43_shm_write16(dev, B43_SHM_SHARED,
792                         B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value);
793
794         /* Write the key to the Key Table Pointer offset */
795         offset = dev->ktp + (index * B43_SEC_KEYSIZE);
796         for (i = 0; i < B43_SEC_KEYSIZE; i += 2) {
797                 value = key[i];
798                 value |= (u16) (key[i + 1]) << 8;
799                 b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value);
800         }
801 }
802
803 static void keymac_write(struct b43_wldev *dev, u8 index, const u8 *addr)
804 {
805         u32 addrtmp[2] = { 0, 0, };
806         u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
807
808         if (b43_new_kidx_api(dev))
809                 pairwise_keys_start = B43_NR_GROUP_KEYS;
810
811         B43_WARN_ON(index < pairwise_keys_start);
812         /* We have four default TX keys and possibly four default RX keys.
813          * Physical mac 0 is mapped to physical key 4 or 8, depending
814          * on the firmware version.
815          * So we must adjust the index here.
816          */
817         index -= pairwise_keys_start;
818         B43_WARN_ON(index >= B43_NR_PAIRWISE_KEYS);
819
820         if (addr) {
821                 addrtmp[0] = addr[0];
822                 addrtmp[0] |= ((u32) (addr[1]) << 8);
823                 addrtmp[0] |= ((u32) (addr[2]) << 16);
824                 addrtmp[0] |= ((u32) (addr[3]) << 24);
825                 addrtmp[1] = addr[4];
826                 addrtmp[1] |= ((u32) (addr[5]) << 8);
827         }
828
829         /* Receive match transmitter address (RCMTA) mechanism */
830         b43_shm_write32(dev, B43_SHM_RCMTA,
831                         (index * 2) + 0, addrtmp[0]);
832         b43_shm_write16(dev, B43_SHM_RCMTA,
833                         (index * 2) + 1, addrtmp[1]);
834 }
835
836 /* The ucode will use phase1 key with TEK key to decrypt rx packets.
837  * When a packet is received, the iv32 is checked.
838  * - if it doesn't the packet is returned without modification (and software
839  *   decryption can be done). That's what happen when iv16 wrap.
840  * - if it does, the rc4 key is computed, and decryption is tried.
841  *   Either it will success and B43_RX_MAC_DEC is returned,
842  *   either it fails and B43_RX_MAC_DEC|B43_RX_MAC_DECERR is returned
843  *   and the packet is not usable (it got modified by the ucode).
844  * So in order to never have B43_RX_MAC_DECERR, we should provide
845  * a iv32 and phase1key that match. Because we drop packets in case of
846  * B43_RX_MAC_DECERR, if we have a correct iv32 but a wrong phase1key, all
847  * packets will be lost without higher layer knowing (ie no resync possible
848  * until next wrap).
849  *
850  * NOTE : this should support 50 key like RCMTA because
851  * (B43_SHM_SH_KEYIDXBLOCK - B43_SHM_SH_TKIPTSCTTAK)/14 = 50
852  */
853 static void rx_tkip_phase1_write(struct b43_wldev *dev, u8 index, u32 iv32,
854                 u16 *phase1key)
855 {
856         unsigned int i;
857         u32 offset;
858         u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
859
860         if (!modparam_hwtkip)
861                 return;
862
863         if (b43_new_kidx_api(dev))
864                 pairwise_keys_start = B43_NR_GROUP_KEYS;
865
866         B43_WARN_ON(index < pairwise_keys_start);
867         /* We have four default TX keys and possibly four default RX keys.
868          * Physical mac 0 is mapped to physical key 4 or 8, depending
869          * on the firmware version.
870          * So we must adjust the index here.
871          */
872         index -= pairwise_keys_start;
873         B43_WARN_ON(index >= B43_NR_PAIRWISE_KEYS);
874
875         if (b43_debug(dev, B43_DBG_KEYS)) {
876                 b43dbg(dev->wl, "rx_tkip_phase1_write : idx 0x%x, iv32 0x%x\n",
877                                 index, iv32);
878         }
879         /* Write the key to the  RX tkip shared mem */
880         offset = B43_SHM_SH_TKIPTSCTTAK + index * (10 + 4);
881         for (i = 0; i < 10; i += 2) {
882                 b43_shm_write16(dev, B43_SHM_SHARED, offset + i,
883                                 phase1key ? phase1key[i / 2] : 0);
884         }
885         b43_shm_write16(dev, B43_SHM_SHARED, offset + i, iv32);
886         b43_shm_write16(dev, B43_SHM_SHARED, offset + i + 2, iv32 >> 16);
887 }
888
889 static void b43_op_update_tkip_key(struct ieee80211_hw *hw,
890                                    struct ieee80211_vif *vif,
891                                    struct ieee80211_key_conf *keyconf,
892                                    struct ieee80211_sta *sta,
893                                    u32 iv32, u16 *phase1key)
894 {
895         struct b43_wl *wl = hw_to_b43_wl(hw);
896         struct b43_wldev *dev;
897         int index = keyconf->hw_key_idx;
898
899         if (B43_WARN_ON(!modparam_hwtkip))
900                 return;
901
902         /* This is only called from the RX path through mac80211, where
903          * our mutex is already locked. */
904         B43_WARN_ON(!mutex_is_locked(&wl->mutex));
905         dev = wl->current_dev;
906         B43_WARN_ON(!dev || b43_status(dev) < B43_STAT_INITIALIZED);
907
908         keymac_write(dev, index, NULL); /* First zero out mac to avoid race */
909
910         rx_tkip_phase1_write(dev, index, iv32, phase1key);
911         /* only pairwise TKIP keys are supported right now */
912         if (WARN_ON(!sta))
913                 return;
914         keymac_write(dev, index, sta->addr);
915 }
916
917 static void do_key_write(struct b43_wldev *dev,
918                          u8 index, u8 algorithm,
919                          const u8 *key, size_t key_len, const u8 *mac_addr)
920 {
921         u8 buf[B43_SEC_KEYSIZE] = { 0, };
922         u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
923
924         if (b43_new_kidx_api(dev))
925                 pairwise_keys_start = B43_NR_GROUP_KEYS;
926
927         B43_WARN_ON(index >= ARRAY_SIZE(dev->key));
928         B43_WARN_ON(key_len > B43_SEC_KEYSIZE);
929
930         if (index >= pairwise_keys_start)
931                 keymac_write(dev, index, NULL); /* First zero out mac. */
932         if (algorithm == B43_SEC_ALGO_TKIP) {
933                 /*
934                  * We should provide an initial iv32, phase1key pair.
935                  * We could start with iv32=0 and compute the corresponding
936                  * phase1key, but this means calling ieee80211_get_tkip_key
937                  * with a fake skb (or export other tkip function).
938                  * Because we are lazy we hope iv32 won't start with
939                  * 0xffffffff and let's b43_op_update_tkip_key provide a
940                  * correct pair.
941                  */
942                 rx_tkip_phase1_write(dev, index, 0xffffffff, (u16*)buf);
943         } else if (index >= pairwise_keys_start) /* clear it */
944                 rx_tkip_phase1_write(dev, index, 0, NULL);
945         if (key)
946                 memcpy(buf, key, key_len);
947         key_write(dev, index, algorithm, buf);
948         if (index >= pairwise_keys_start)
949                 keymac_write(dev, index, mac_addr);
950
951         dev->key[index].algorithm = algorithm;
952 }
953
954 static int b43_key_write(struct b43_wldev *dev,
955                          int index, u8 algorithm,
956                          const u8 *key, size_t key_len,
957                          const u8 *mac_addr,
958                          struct ieee80211_key_conf *keyconf)
959 {
960         int i;
961         int pairwise_keys_start;
962
963         /* For ALG_TKIP the key is encoded as a 256-bit (32 byte) data block:
964          *      - Temporal Encryption Key (128 bits)
965          *      - Temporal Authenticator Tx MIC Key (64 bits)
966          *      - Temporal Authenticator Rx MIC Key (64 bits)
967          *
968          *      Hardware only store TEK
969          */
970         if (algorithm == B43_SEC_ALGO_TKIP && key_len == 32)
971                 key_len = 16;
972         if (key_len > B43_SEC_KEYSIZE)
973                 return -EINVAL;
974         for (i = 0; i < ARRAY_SIZE(dev->key); i++) {
975                 /* Check that we don't already have this key. */
976                 B43_WARN_ON(dev->key[i].keyconf == keyconf);
977         }
978         if (index < 0) {
979                 /* Pairwise key. Get an empty slot for the key. */
980                 if (b43_new_kidx_api(dev))
981                         pairwise_keys_start = B43_NR_GROUP_KEYS;
982                 else
983                         pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
984                 for (i = pairwise_keys_start;
985                      i < pairwise_keys_start + B43_NR_PAIRWISE_KEYS;
986                      i++) {
987                         B43_WARN_ON(i >= ARRAY_SIZE(dev->key));
988                         if (!dev->key[i].keyconf) {
989                                 /* found empty */
990                                 index = i;
991                                 break;
992                         }
993                 }
994                 if (index < 0) {
995                         b43warn(dev->wl, "Out of hardware key memory\n");
996                         return -ENOSPC;
997                 }
998         } else
999                 B43_WARN_ON(index > 3);
1000
1001         do_key_write(dev, index, algorithm, key, key_len, mac_addr);
1002         if ((index <= 3) && !b43_new_kidx_api(dev)) {
1003                 /* Default RX key */
1004                 B43_WARN_ON(mac_addr);
1005                 do_key_write(dev, index + 4, algorithm, key, key_len, NULL);
1006         }
1007         keyconf->hw_key_idx = index;
1008         dev->key[index].keyconf = keyconf;
1009
1010         return 0;
1011 }
1012
1013 static int b43_key_clear(struct b43_wldev *dev, int index)
1014 {
1015         if (B43_WARN_ON((index < 0) || (index >= ARRAY_SIZE(dev->key))))
1016                 return -EINVAL;
1017         do_key_write(dev, index, B43_SEC_ALGO_NONE,
1018                      NULL, B43_SEC_KEYSIZE, NULL);
1019         if ((index <= 3) && !b43_new_kidx_api(dev)) {
1020                 do_key_write(dev, index + 4, B43_SEC_ALGO_NONE,
1021                              NULL, B43_SEC_KEYSIZE, NULL);
1022         }
1023         dev->key[index].keyconf = NULL;
1024
1025         return 0;
1026 }
1027
1028 static void b43_clear_keys(struct b43_wldev *dev)
1029 {
1030         int i, count;
1031
1032         if (b43_new_kidx_api(dev))
1033                 count = B43_NR_GROUP_KEYS + B43_NR_PAIRWISE_KEYS;
1034         else
1035                 count = B43_NR_GROUP_KEYS * 2 + B43_NR_PAIRWISE_KEYS;
1036         for (i = 0; i < count; i++)
1037                 b43_key_clear(dev, i);
1038 }
1039
1040 static void b43_dump_keymemory(struct b43_wldev *dev)
1041 {
1042         unsigned int i, index, count, offset, pairwise_keys_start;
1043         u8 mac[ETH_ALEN];
1044         u16 algo;
1045         u32 rcmta0;
1046         u16 rcmta1;
1047         u64 hf;
1048         struct b43_key *key;
1049
1050         if (!b43_debug(dev, B43_DBG_KEYS))
1051                 return;
1052
1053         hf = b43_hf_read(dev);
1054         b43dbg(dev->wl, "Hardware key memory dump:  USEDEFKEYS=%u\n",
1055                !!(hf & B43_HF_USEDEFKEYS));
1056         if (b43_new_kidx_api(dev)) {
1057                 pairwise_keys_start = B43_NR_GROUP_KEYS;
1058                 count = B43_NR_GROUP_KEYS + B43_NR_PAIRWISE_KEYS;
1059         } else {
1060                 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
1061                 count = B43_NR_GROUP_KEYS * 2 + B43_NR_PAIRWISE_KEYS;
1062         }
1063         for (index = 0; index < count; index++) {
1064                 key = &(dev->key[index]);
1065                 printk(KERN_DEBUG "Key slot %02u: %s",
1066                        index, (key->keyconf == NULL) ? " " : "*");
1067                 offset = dev->ktp + (index * B43_SEC_KEYSIZE);
1068                 for (i = 0; i < B43_SEC_KEYSIZE; i += 2) {
1069                         u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i);
1070                         printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF));
1071                 }
1072
1073                 algo = b43_shm_read16(dev, B43_SHM_SHARED,
1074                                       B43_SHM_SH_KEYIDXBLOCK + (index * 2));
1075                 printk("   Algo: %04X/%02X", algo, key->algorithm);
1076
1077                 if (index >= pairwise_keys_start) {
1078                         if (key->algorithm == B43_SEC_ALGO_TKIP) {
1079                                 printk("   TKIP: ");
1080                                 offset = B43_SHM_SH_TKIPTSCTTAK + (index - 4) * (10 + 4);
1081                                 for (i = 0; i < 14; i += 2) {
1082                                         u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i);
1083                                         printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF));
1084                                 }
1085                         }
1086                         rcmta0 = b43_shm_read32(dev, B43_SHM_RCMTA,
1087                                                 ((index - pairwise_keys_start) * 2) + 0);
1088                         rcmta1 = b43_shm_read16(dev, B43_SHM_RCMTA,
1089                                                 ((index - pairwise_keys_start) * 2) + 1);
1090                         *((__le32 *)(&mac[0])) = cpu_to_le32(rcmta0);
1091                         *((__le16 *)(&mac[4])) = cpu_to_le16(rcmta1);
1092                         printk("   MAC: %pM", mac);
1093                 } else
1094                         printk("   DEFAULT KEY");
1095                 printk("\n");
1096         }
1097 }
1098
1099 void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags)
1100 {
1101         u32 macctl;
1102         u16 ucstat;
1103         bool hwps;
1104         bool awake;
1105         int i;
1106
1107         B43_WARN_ON((ps_flags & B43_PS_ENABLED) &&
1108                     (ps_flags & B43_PS_DISABLED));
1109         B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP));
1110
1111         if (ps_flags & B43_PS_ENABLED) {
1112                 hwps = 1;
1113         } else if (ps_flags & B43_PS_DISABLED) {
1114                 hwps = 0;
1115         } else {
1116                 //TODO: If powersave is not off and FIXME is not set and we are not in adhoc
1117                 //      and thus is not an AP and we are associated, set bit 25
1118         }
1119         if (ps_flags & B43_PS_AWAKE) {
1120                 awake = 1;
1121         } else if (ps_flags & B43_PS_ASLEEP) {
1122                 awake = 0;
1123         } else {
1124                 //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME,
1125                 //      or we are associated, or FIXME, or the latest PS-Poll packet sent was
1126                 //      successful, set bit26
1127         }
1128
1129 /* FIXME: For now we force awake-on and hwps-off */
1130         hwps = 0;
1131         awake = 1;
1132
1133         macctl = b43_read32(dev, B43_MMIO_MACCTL);
1134         if (hwps)
1135                 macctl |= B43_MACCTL_HWPS;
1136         else
1137                 macctl &= ~B43_MACCTL_HWPS;
1138         if (awake)
1139                 macctl |= B43_MACCTL_AWAKE;
1140         else
1141                 macctl &= ~B43_MACCTL_AWAKE;
1142         b43_write32(dev, B43_MMIO_MACCTL, macctl);
1143         /* Commit write */
1144         b43_read32(dev, B43_MMIO_MACCTL);
1145         if (awake && dev->dev->core_rev >= 5) {
1146                 /* Wait for the microcode to wake up. */
1147                 for (i = 0; i < 100; i++) {
1148                         ucstat = b43_shm_read16(dev, B43_SHM_SHARED,
1149                                                 B43_SHM_SH_UCODESTAT);
1150                         if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP)
1151                                 break;
1152                         udelay(10);
1153                 }
1154         }
1155 }
1156
1157 static void b43_ssb_wireless_core_reset(struct b43_wldev *dev, bool gmode)
1158 {
1159         struct ssb_device *sdev = dev->dev->sdev;
1160         u32 tmslow;
1161         u32 flags = 0;
1162
1163         if (gmode)
1164                 flags |= B43_TMSLOW_GMODE;
1165         flags |= B43_TMSLOW_PHYCLKEN;
1166         flags |= B43_TMSLOW_PHYRESET;
1167         if (dev->phy.type == B43_PHYTYPE_N)
1168                 flags |= B43_TMSLOW_PHY_BANDWIDTH_20MHZ; /* Make 20 MHz def */
1169         b43_device_enable(dev, flags);
1170         msleep(2);              /* Wait for the PLL to turn on. */
1171
1172         /* Now take the PHY out of Reset again */
1173         tmslow = ssb_read32(sdev, SSB_TMSLOW);
1174         tmslow |= SSB_TMSLOW_FGC;
1175         tmslow &= ~B43_TMSLOW_PHYRESET;
1176         ssb_write32(sdev, SSB_TMSLOW, tmslow);
1177         ssb_read32(sdev, SSB_TMSLOW);   /* flush */
1178         msleep(1);
1179         tmslow &= ~SSB_TMSLOW_FGC;
1180         ssb_write32(sdev, SSB_TMSLOW, tmslow);
1181         ssb_read32(sdev, SSB_TMSLOW);   /* flush */
1182         msleep(1);
1183 }
1184
1185 void b43_wireless_core_reset(struct b43_wldev *dev, bool gmode)
1186 {
1187         u32 macctl;
1188
1189         b43_ssb_wireless_core_reset(dev, gmode);
1190
1191         /* Turn Analog ON, but only if we already know the PHY-type.
1192          * This protects against very early setup where we don't know the
1193          * PHY-type, yet. wireless_core_reset will be called once again later,
1194          * when we know the PHY-type. */
1195         if (dev->phy.ops)
1196                 dev->phy.ops->switch_analog(dev, 1);
1197
1198         macctl = b43_read32(dev, B43_MMIO_MACCTL);
1199         macctl &= ~B43_MACCTL_GMODE;
1200         if (gmode)
1201                 macctl |= B43_MACCTL_GMODE;
1202         macctl |= B43_MACCTL_IHR_ENABLED;
1203         b43_write32(dev, B43_MMIO_MACCTL, macctl);
1204 }
1205
1206 static void handle_irq_transmit_status(struct b43_wldev *dev)
1207 {
1208         u32 v0, v1;
1209         u16 tmp;
1210         struct b43_txstatus stat;
1211
1212         while (1) {
1213                 v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1214                 if (!(v0 & 0x00000001))
1215                         break;
1216                 v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1217
1218                 stat.cookie = (v0 >> 16);
1219                 stat.seq = (v1 & 0x0000FFFF);
1220                 stat.phy_stat = ((v1 & 0x00FF0000) >> 16);
1221                 tmp = (v0 & 0x0000FFFF);
1222                 stat.frame_count = ((tmp & 0xF000) >> 12);
1223                 stat.rts_count = ((tmp & 0x0F00) >> 8);
1224                 stat.supp_reason = ((tmp & 0x001C) >> 2);
1225                 stat.pm_indicated = !!(tmp & 0x0080);
1226                 stat.intermediate = !!(tmp & 0x0040);
1227                 stat.for_ampdu = !!(tmp & 0x0020);
1228                 stat.acked = !!(tmp & 0x0002);
1229
1230                 b43_handle_txstatus(dev, &stat);
1231         }
1232 }
1233
1234 static void drain_txstatus_queue(struct b43_wldev *dev)
1235 {
1236         u32 dummy;
1237
1238         if (dev->dev->core_rev < 5)
1239                 return;
1240         /* Read all entries from the microcode TXstatus FIFO
1241          * and throw them away.
1242          */
1243         while (1) {
1244                 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1245                 if (!(dummy & 0x00000001))
1246                         break;
1247                 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1248         }
1249 }
1250
1251 static u32 b43_jssi_read(struct b43_wldev *dev)
1252 {
1253         u32 val = 0;
1254
1255         val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A);
1256         val <<= 16;
1257         val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088);
1258
1259         return val;
1260 }
1261
1262 static void b43_jssi_write(struct b43_wldev *dev, u32 jssi)
1263 {
1264         b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF));
1265         b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16);
1266 }
1267
1268 static void b43_generate_noise_sample(struct b43_wldev *dev)
1269 {
1270         b43_jssi_write(dev, 0x7F7F7F7F);
1271         b43_write32(dev, B43_MMIO_MACCMD,
1272                     b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE);
1273 }
1274
1275 static void b43_calculate_link_quality(struct b43_wldev *dev)
1276 {
1277         /* Top half of Link Quality calculation. */
1278
1279         if (dev->phy.type != B43_PHYTYPE_G)
1280                 return;
1281         if (dev->noisecalc.calculation_running)
1282                 return;
1283         dev->noisecalc.calculation_running = 1;
1284         dev->noisecalc.nr_samples = 0;
1285
1286         b43_generate_noise_sample(dev);
1287 }
1288
1289 static void handle_irq_noise(struct b43_wldev *dev)
1290 {
1291         struct b43_phy_g *phy = dev->phy.g;
1292         u16 tmp;
1293         u8 noise[4];
1294         u8 i, j;
1295         s32 average;
1296
1297         /* Bottom half of Link Quality calculation. */
1298
1299         if (dev->phy.type != B43_PHYTYPE_G)
1300                 return;
1301
1302         /* Possible race condition: It might be possible that the user
1303          * changed to a different channel in the meantime since we
1304          * started the calculation. We ignore that fact, since it's
1305          * not really that much of a problem. The background noise is
1306          * an estimation only anyway. Slightly wrong results will get damped
1307          * by the averaging of the 8 sample rounds. Additionally the
1308          * value is shortlived. So it will be replaced by the next noise
1309          * calculation round soon. */
1310
1311         B43_WARN_ON(!dev->noisecalc.calculation_running);
1312         *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev));
1313         if (noise[0] == 0x7F || noise[1] == 0x7F ||
1314             noise[2] == 0x7F || noise[3] == 0x7F)
1315                 goto generate_new;
1316
1317         /* Get the noise samples. */
1318         B43_WARN_ON(dev->noisecalc.nr_samples >= 8);
1319         i = dev->noisecalc.nr_samples;
1320         noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1321         noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1322         noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1323         noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1324         dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]];
1325         dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]];
1326         dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]];
1327         dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]];
1328         dev->noisecalc.nr_samples++;
1329         if (dev->noisecalc.nr_samples == 8) {
1330                 /* Calculate the Link Quality by the noise samples. */
1331                 average = 0;
1332                 for (i = 0; i < 8; i++) {
1333                         for (j = 0; j < 4; j++)
1334                                 average += dev->noisecalc.samples[i][j];
1335                 }
1336                 average /= (8 * 4);
1337                 average *= 125;
1338                 average += 64;
1339                 average /= 128;
1340                 tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C);
1341                 tmp = (tmp / 128) & 0x1F;
1342                 if (tmp >= 8)
1343                         average += 2;
1344                 else
1345                         average -= 25;
1346                 if (tmp == 8)
1347                         average -= 72;
1348                 else
1349                         average -= 48;
1350
1351                 dev->stats.link_noise = average;
1352                 dev->noisecalc.calculation_running = 0;
1353                 return;
1354         }
1355 generate_new:
1356         b43_generate_noise_sample(dev);
1357 }
1358
1359 static void handle_irq_tbtt_indication(struct b43_wldev *dev)
1360 {
1361         if (b43_is_mode(dev->wl, NL80211_IFTYPE_AP)) {
1362                 ///TODO: PS TBTT
1363         } else {
1364                 if (1 /*FIXME: the last PSpoll frame was sent successfully */ )
1365                         b43_power_saving_ctl_bits(dev, 0);
1366         }
1367         if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC))
1368                 dev->dfq_valid = 1;
1369 }
1370
1371 static void handle_irq_atim_end(struct b43_wldev *dev)
1372 {
1373         if (dev->dfq_valid) {
1374                 b43_write32(dev, B43_MMIO_MACCMD,
1375                             b43_read32(dev, B43_MMIO_MACCMD)
1376                             | B43_MACCMD_DFQ_VALID);
1377                 dev->dfq_valid = 0;
1378         }
1379 }
1380
1381 static void handle_irq_pmq(struct b43_wldev *dev)
1382 {
1383         u32 tmp;
1384
1385         //TODO: AP mode.
1386
1387         while (1) {
1388                 tmp = b43_read32(dev, B43_MMIO_PS_STATUS);
1389                 if (!(tmp & 0x00000008))
1390                         break;
1391         }
1392         /* 16bit write is odd, but correct. */
1393         b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002);
1394 }
1395
1396 static void b43_write_template_common(struct b43_wldev *dev,
1397                                       const u8 *data, u16 size,
1398                                       u16 ram_offset,
1399                                       u16 shm_size_offset, u8 rate)
1400 {
1401         u32 i, tmp;
1402         struct b43_plcp_hdr4 plcp;
1403
1404         plcp.data = 0;
1405         b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
1406         b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data));
1407         ram_offset += sizeof(u32);
1408         /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet.
1409          * So leave the first two bytes of the next write blank.
1410          */
1411         tmp = (u32) (data[0]) << 16;
1412         tmp |= (u32) (data[1]) << 24;
1413         b43_ram_write(dev, ram_offset, tmp);
1414         ram_offset += sizeof(u32);
1415         for (i = 2; i < size; i += sizeof(u32)) {
1416                 tmp = (u32) (data[i + 0]);
1417                 if (i + 1 < size)
1418                         tmp |= (u32) (data[i + 1]) << 8;
1419                 if (i + 2 < size)
1420                         tmp |= (u32) (data[i + 2]) << 16;
1421                 if (i + 3 < size)
1422                         tmp |= (u32) (data[i + 3]) << 24;
1423                 b43_ram_write(dev, ram_offset + i - 2, tmp);
1424         }
1425         b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset,
1426                         size + sizeof(struct b43_plcp_hdr6));
1427 }
1428
1429 /* Check if the use of the antenna that ieee80211 told us to
1430  * use is possible. This will fall back to DEFAULT.
1431  * "antenna_nr" is the antenna identifier we got from ieee80211. */
1432 u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev,
1433                                   u8 antenna_nr)
1434 {
1435         u8 antenna_mask;
1436
1437         if (antenna_nr == 0) {
1438                 /* Zero means "use default antenna". That's always OK. */
1439                 return 0;
1440         }
1441
1442         /* Get the mask of available antennas. */
1443         if (dev->phy.gmode)
1444                 antenna_mask = dev->dev->bus_sprom->ant_available_bg;
1445         else
1446                 antenna_mask = dev->dev->bus_sprom->ant_available_a;
1447
1448         if (!(antenna_mask & (1 << (antenna_nr - 1)))) {
1449                 /* This antenna is not available. Fall back to default. */
1450                 return 0;
1451         }
1452
1453         return antenna_nr;
1454 }
1455
1456 /* Convert a b43 antenna number value to the PHY TX control value. */
1457 static u16 b43_antenna_to_phyctl(int antenna)
1458 {
1459         switch (antenna) {
1460         case B43_ANTENNA0:
1461                 return B43_TXH_PHY_ANT0;
1462         case B43_ANTENNA1:
1463                 return B43_TXH_PHY_ANT1;
1464         case B43_ANTENNA2:
1465                 return B43_TXH_PHY_ANT2;
1466         case B43_ANTENNA3:
1467                 return B43_TXH_PHY_ANT3;
1468         case B43_ANTENNA_AUTO0:
1469         case B43_ANTENNA_AUTO1:
1470                 return B43_TXH_PHY_ANT01AUTO;
1471         }
1472         B43_WARN_ON(1);
1473         return 0;
1474 }
1475
1476 static void b43_write_beacon_template(struct b43_wldev *dev,
1477                                       u16 ram_offset,
1478                                       u16 shm_size_offset)
1479 {
1480         unsigned int i, len, variable_len;
1481         const struct ieee80211_mgmt *bcn;
1482         const u8 *ie;
1483         bool tim_found = 0;
1484         unsigned int rate;
1485         u16 ctl;
1486         int antenna;
1487         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon);
1488
1489         bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data);
1490         len = min((size_t) dev->wl->current_beacon->len,
1491                   0x200 - sizeof(struct b43_plcp_hdr6));
1492         rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value;
1493
1494         b43_write_template_common(dev, (const u8 *)bcn,
1495                                   len, ram_offset, shm_size_offset, rate);
1496
1497         /* Write the PHY TX control parameters. */
1498         antenna = B43_ANTENNA_DEFAULT;
1499         antenna = b43_antenna_to_phyctl(antenna);
1500         ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL);
1501         /* We can't send beacons with short preamble. Would get PHY errors. */
1502         ctl &= ~B43_TXH_PHY_SHORTPRMBL;
1503         ctl &= ~B43_TXH_PHY_ANT;
1504         ctl &= ~B43_TXH_PHY_ENC;
1505         ctl |= antenna;
1506         if (b43_is_cck_rate(rate))
1507                 ctl |= B43_TXH_PHY_ENC_CCK;
1508         else
1509                 ctl |= B43_TXH_PHY_ENC_OFDM;
1510         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl);
1511
1512         /* Find the position of the TIM and the DTIM_period value
1513          * and write them to SHM. */
1514         ie = bcn->u.beacon.variable;
1515         variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
1516         for (i = 0; i < variable_len - 2; ) {
1517                 uint8_t ie_id, ie_len;
1518
1519                 ie_id = ie[i];
1520                 ie_len = ie[i + 1];
1521                 if (ie_id == 5) {
1522                         u16 tim_position;
1523                         u16 dtim_period;
1524                         /* This is the TIM Information Element */
1525
1526                         /* Check whether the ie_len is in the beacon data range. */
1527                         if (variable_len < ie_len + 2 + i)
1528                                 break;
1529                         /* A valid TIM is at least 4 bytes long. */
1530                         if (ie_len < 4)
1531                                 break;
1532                         tim_found = 1;
1533
1534                         tim_position = sizeof(struct b43_plcp_hdr6);
1535                         tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable);
1536                         tim_position += i;
1537
1538                         dtim_period = ie[i + 3];
1539
1540                         b43_shm_write16(dev, B43_SHM_SHARED,
1541                                         B43_SHM_SH_TIMBPOS, tim_position);
1542                         b43_shm_write16(dev, B43_SHM_SHARED,
1543                                         B43_SHM_SH_DTIMPER, dtim_period);
1544                         break;
1545                 }
1546                 i += ie_len + 2;
1547         }
1548         if (!tim_found) {
1549                 /*
1550                  * If ucode wants to modify TIM do it behind the beacon, this
1551                  * will happen, for example, when doing mesh networking.
1552                  */
1553                 b43_shm_write16(dev, B43_SHM_SHARED,
1554                                 B43_SHM_SH_TIMBPOS,
1555                                 len + sizeof(struct b43_plcp_hdr6));
1556                 b43_shm_write16(dev, B43_SHM_SHARED,
1557                                 B43_SHM_SH_DTIMPER, 0);
1558         }
1559         b43dbg(dev->wl, "Updated beacon template at 0x%x\n", ram_offset);
1560 }
1561
1562 static void b43_upload_beacon0(struct b43_wldev *dev)
1563 {
1564         struct b43_wl *wl = dev->wl;
1565
1566         if (wl->beacon0_uploaded)
1567                 return;
1568         b43_write_beacon_template(dev, 0x68, 0x18);
1569         wl->beacon0_uploaded = 1;
1570 }
1571
1572 static void b43_upload_beacon1(struct b43_wldev *dev)
1573 {
1574         struct b43_wl *wl = dev->wl;
1575
1576         if (wl->beacon1_uploaded)
1577                 return;
1578         b43_write_beacon_template(dev, 0x468, 0x1A);
1579         wl->beacon1_uploaded = 1;
1580 }
1581
1582 static void handle_irq_beacon(struct b43_wldev *dev)
1583 {
1584         struct b43_wl *wl = dev->wl;
1585         u32 cmd, beacon0_valid, beacon1_valid;
1586
1587         if (!b43_is_mode(wl, NL80211_IFTYPE_AP) &&
1588             !b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT))
1589                 return;
1590
1591         /* This is the bottom half of the asynchronous beacon update. */
1592
1593         /* Ignore interrupt in the future. */
1594         dev->irq_mask &= ~B43_IRQ_BEACON;
1595
1596         cmd = b43_read32(dev, B43_MMIO_MACCMD);
1597         beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID);
1598         beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID);
1599
1600         /* Schedule interrupt manually, if busy. */
1601         if (beacon0_valid && beacon1_valid) {
1602                 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON);
1603                 dev->irq_mask |= B43_IRQ_BEACON;
1604                 return;
1605         }
1606
1607         if (unlikely(wl->beacon_templates_virgin)) {
1608                 /* We never uploaded a beacon before.
1609                  * Upload both templates now, but only mark one valid. */
1610                 wl->beacon_templates_virgin = 0;
1611                 b43_upload_beacon0(dev);
1612                 b43_upload_beacon1(dev);
1613                 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1614                 cmd |= B43_MACCMD_BEACON0_VALID;
1615                 b43_write32(dev, B43_MMIO_MACCMD, cmd);
1616         } else {
1617                 if (!beacon0_valid) {
1618                         b43_upload_beacon0(dev);
1619                         cmd = b43_read32(dev, B43_MMIO_MACCMD);
1620                         cmd |= B43_MACCMD_BEACON0_VALID;
1621                         b43_write32(dev, B43_MMIO_MACCMD, cmd);
1622                 } else if (!beacon1_valid) {
1623                         b43_upload_beacon1(dev);
1624                         cmd = b43_read32(dev, B43_MMIO_MACCMD);
1625                         cmd |= B43_MACCMD_BEACON1_VALID;
1626                         b43_write32(dev, B43_MMIO_MACCMD, cmd);
1627                 }
1628         }
1629 }
1630
1631 static void b43_do_beacon_update_trigger_work(struct b43_wldev *dev)
1632 {
1633         u32 old_irq_mask = dev->irq_mask;
1634
1635         /* update beacon right away or defer to irq */
1636         handle_irq_beacon(dev);
1637         if (old_irq_mask != dev->irq_mask) {
1638                 /* The handler updated the IRQ mask. */
1639                 B43_WARN_ON(!dev->irq_mask);
1640                 if (b43_read32(dev, B43_MMIO_GEN_IRQ_MASK)) {
1641                         b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask);
1642                 } else {
1643                         /* Device interrupts are currently disabled. That means
1644                          * we just ran the hardirq handler and scheduled the
1645                          * IRQ thread. The thread will write the IRQ mask when
1646                          * it finished, so there's nothing to do here. Writing
1647                          * the mask _here_ would incorrectly re-enable IRQs. */
1648                 }
1649         }
1650 }
1651
1652 static void b43_beacon_update_trigger_work(struct work_struct *work)
1653 {
1654         struct b43_wl *wl = container_of(work, struct b43_wl,
1655                                          beacon_update_trigger);
1656         struct b43_wldev *dev;
1657
1658         mutex_lock(&wl->mutex);
1659         dev = wl->current_dev;
1660         if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) {
1661                 if (b43_bus_host_is_sdio(dev->dev)) {
1662                         /* wl->mutex is enough. */
1663                         b43_do_beacon_update_trigger_work(dev);
1664                         mmiowb();
1665                 } else {
1666                         spin_lock_irq(&wl->hardirq_lock);
1667                         b43_do_beacon_update_trigger_work(dev);
1668                         mmiowb();
1669                         spin_unlock_irq(&wl->hardirq_lock);
1670                 }
1671         }
1672         mutex_unlock(&wl->mutex);
1673 }
1674
1675 /* Asynchronously update the packet templates in template RAM.
1676  * Locking: Requires wl->mutex to be locked. */
1677 static void b43_update_templates(struct b43_wl *wl)
1678 {
1679         struct sk_buff *beacon;
1680
1681         /* This is the top half of the ansynchronous beacon update.
1682          * The bottom half is the beacon IRQ.
1683          * Beacon update must be asynchronous to avoid sending an
1684          * invalid beacon. This can happen for example, if the firmware
1685          * transmits a beacon while we are updating it. */
1686
1687         /* We could modify the existing beacon and set the aid bit in
1688          * the TIM field, but that would probably require resizing and
1689          * moving of data within the beacon template.
1690          * Simply request a new beacon and let mac80211 do the hard work. */
1691         beacon = ieee80211_beacon_get(wl->hw, wl->vif);
1692         if (unlikely(!beacon))
1693                 return;
1694
1695         if (wl->current_beacon)
1696                 dev_kfree_skb_any(wl->current_beacon);
1697         wl->current_beacon = beacon;
1698         wl->beacon0_uploaded = 0;
1699         wl->beacon1_uploaded = 0;
1700         ieee80211_queue_work(wl->hw, &wl->beacon_update_trigger);
1701 }
1702
1703 static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int)
1704 {
1705         b43_time_lock(dev);
1706         if (dev->dev->core_rev >= 3) {
1707                 b43_write32(dev, B43_MMIO_TSF_CFP_REP, (beacon_int << 16));
1708                 b43_write32(dev, B43_MMIO_TSF_CFP_START, (beacon_int << 10));
1709         } else {
1710                 b43_write16(dev, 0x606, (beacon_int >> 6));
1711                 b43_write16(dev, 0x610, beacon_int);
1712         }
1713         b43_time_unlock(dev);
1714         b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int);
1715 }
1716
1717 static void b43_handle_firmware_panic(struct b43_wldev *dev)
1718 {
1719         u16 reason;
1720
1721         /* Read the register that contains the reason code for the panic. */
1722         reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_FWPANIC_REASON_REG);
1723         b43err(dev->wl, "Whoopsy, firmware panic! Reason: %u\n", reason);
1724
1725         switch (reason) {
1726         default:
1727                 b43dbg(dev->wl, "The panic reason is unknown.\n");
1728                 /* fallthrough */
1729         case B43_FWPANIC_DIE:
1730                 /* Do not restart the controller or firmware.
1731                  * The device is nonfunctional from now on.
1732                  * Restarting would result in this panic to trigger again,
1733                  * so we avoid that recursion. */
1734                 break;
1735         case B43_FWPANIC_RESTART:
1736                 b43_controller_restart(dev, "Microcode panic");
1737                 break;
1738         }
1739 }
1740
1741 static void handle_irq_ucode_debug(struct b43_wldev *dev)
1742 {
1743         unsigned int i, cnt;
1744         u16 reason, marker_id, marker_line;
1745         __le16 *buf;
1746
1747         /* The proprietary firmware doesn't have this IRQ. */
1748         if (!dev->fw.opensource)
1749                 return;
1750
1751         /* Read the register that contains the reason code for this IRQ. */
1752         reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_DEBUGIRQ_REASON_REG);
1753
1754         switch (reason) {
1755         case B43_DEBUGIRQ_PANIC:
1756                 b43_handle_firmware_panic(dev);
1757                 break;
1758         case B43_DEBUGIRQ_DUMP_SHM:
1759                 if (!B43_DEBUG)
1760                         break; /* Only with driver debugging enabled. */
1761                 buf = kmalloc(4096, GFP_ATOMIC);
1762                 if (!buf) {
1763                         b43dbg(dev->wl, "SHM-dump: Failed to allocate memory\n");
1764                         goto out;
1765                 }
1766                 for (i = 0; i < 4096; i += 2) {
1767                         u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, i);
1768                         buf[i / 2] = cpu_to_le16(tmp);
1769                 }
1770                 b43info(dev->wl, "Shared memory dump:\n");
1771                 print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET,
1772                                16, 2, buf, 4096, 1);
1773                 kfree(buf);
1774                 break;
1775         case B43_DEBUGIRQ_DUMP_REGS:
1776                 if (!B43_DEBUG)
1777                         break; /* Only with driver debugging enabled. */
1778                 b43info(dev->wl, "Microcode register dump:\n");
1779                 for (i = 0, cnt = 0; i < 64; i++) {
1780                         u16 tmp = b43_shm_read16(dev, B43_SHM_SCRATCH, i);
1781                         if (cnt == 0)
1782                                 printk(KERN_INFO);
1783                         printk("r%02u: 0x%04X  ", i, tmp);
1784                         cnt++;
1785                         if (cnt == 6) {
1786                                 printk("\n");
1787                                 cnt = 0;
1788                         }
1789                 }
1790                 printk("\n");
1791                 break;
1792         case B43_DEBUGIRQ_MARKER:
1793                 if (!B43_DEBUG)
1794                         break; /* Only with driver debugging enabled. */
1795                 marker_id = b43_shm_read16(dev, B43_SHM_SCRATCH,
1796                                            B43_MARKER_ID_REG);
1797                 marker_line = b43_shm_read16(dev, B43_SHM_SCRATCH,
1798                                              B43_MARKER_LINE_REG);
1799                 b43info(dev->wl, "The firmware just executed the MARKER(%u) "
1800                         "at line number %u\n",
1801                         marker_id, marker_line);
1802                 break;
1803         default:
1804                 b43dbg(dev->wl, "Debug-IRQ triggered for unknown reason: %u\n",
1805                        reason);
1806         }
1807 out:
1808         /* Acknowledge the debug-IRQ, so the firmware can continue. */
1809         b43_shm_write16(dev, B43_SHM_SCRATCH,
1810                         B43_DEBUGIRQ_REASON_REG, B43_DEBUGIRQ_ACK);
1811 }
1812
1813 static void b43_do_interrupt_thread(struct b43_wldev *dev)
1814 {
1815         u32 reason;
1816         u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
1817         u32 merged_dma_reason = 0;
1818         int i;
1819
1820         if (unlikely(b43_status(dev) != B43_STAT_STARTED))
1821                 return;
1822
1823         reason = dev->irq_reason;
1824         for (i = 0; i < ARRAY_SIZE(dma_reason); i++) {
1825                 dma_reason[i] = dev->dma_reason[i];
1826                 merged_dma_reason |= dma_reason[i];
1827         }
1828
1829         if (unlikely(reason & B43_IRQ_MAC_TXERR))
1830                 b43err(dev->wl, "MAC transmission error\n");
1831
1832         if (unlikely(reason & B43_IRQ_PHY_TXERR)) {
1833                 b43err(dev->wl, "PHY transmission error\n");
1834                 rmb();
1835                 if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) {
1836                         atomic_set(&dev->phy.txerr_cnt,
1837                                    B43_PHY_TX_BADNESS_LIMIT);
1838                         b43err(dev->wl, "Too many PHY TX errors, "
1839                                         "restarting the controller\n");
1840                         b43_controller_restart(dev, "PHY TX errors");
1841                 }
1842         }
1843
1844         if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK |
1845                                           B43_DMAIRQ_NONFATALMASK))) {
1846                 if (merged_dma_reason & B43_DMAIRQ_FATALMASK) {
1847                         b43err(dev->wl, "Fatal DMA error: "
1848                                "0x%08X, 0x%08X, 0x%08X, "
1849                                "0x%08X, 0x%08X, 0x%08X\n",
1850                                dma_reason[0], dma_reason[1],
1851                                dma_reason[2], dma_reason[3],
1852                                dma_reason[4], dma_reason[5]);
1853                         b43err(dev->wl, "This device does not support DMA "
1854                                "on your system. It will now be switched to PIO.\n");
1855                         /* Fall back to PIO transfers if we get fatal DMA errors! */
1856                         dev->use_pio = 1;
1857                         b43_controller_restart(dev, "DMA error");
1858                         return;
1859                 }
1860                 if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) {
1861                         b43err(dev->wl, "DMA error: "
1862                                "0x%08X, 0x%08X, 0x%08X, "
1863                                "0x%08X, 0x%08X, 0x%08X\n",
1864                                dma_reason[0], dma_reason[1],
1865                                dma_reason[2], dma_reason[3],
1866                                dma_reason[4], dma_reason[5]);
1867                 }
1868         }
1869
1870         if (unlikely(reason & B43_IRQ_UCODE_DEBUG))
1871                 handle_irq_ucode_debug(dev);
1872         if (reason & B43_IRQ_TBTT_INDI)
1873                 handle_irq_tbtt_indication(dev);
1874         if (reason & B43_IRQ_ATIM_END)
1875                 handle_irq_atim_end(dev);
1876         if (reason & B43_IRQ_BEACON)
1877                 handle_irq_beacon(dev);
1878         if (reason & B43_IRQ_PMQ)
1879                 handle_irq_pmq(dev);
1880         if (reason & B43_IRQ_TXFIFO_FLUSH_OK)
1881                 ;/* TODO */
1882         if (reason & B43_IRQ_NOISESAMPLE_OK)
1883                 handle_irq_noise(dev);
1884
1885         /* Check the DMA reason registers for received data. */
1886         if (dma_reason[0] & B43_DMAIRQ_RX_DONE) {
1887                 if (b43_using_pio_transfers(dev))
1888                         b43_pio_rx(dev->pio.rx_queue);
1889                 else
1890                         b43_dma_rx(dev->dma.rx_ring);
1891         }
1892         B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE);
1893         B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE);
1894         B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE);
1895         B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE);
1896         B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE);
1897
1898         if (reason & B43_IRQ_TX_OK)
1899                 handle_irq_transmit_status(dev);
1900
1901         /* Re-enable interrupts on the device by restoring the current interrupt mask. */
1902         b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask);
1903
1904 #if B43_DEBUG
1905         if (b43_debug(dev, B43_DBG_VERBOSESTATS)) {
1906                 dev->irq_count++;
1907                 for (i = 0; i < ARRAY_SIZE(dev->irq_bit_count); i++) {
1908                         if (reason & (1 << i))
1909                                 dev->irq_bit_count[i]++;
1910                 }
1911         }
1912 #endif
1913 }
1914
1915 /* Interrupt thread handler. Handles device interrupts in thread context. */
1916 static irqreturn_t b43_interrupt_thread_handler(int irq, void *dev_id)
1917 {
1918         struct b43_wldev *dev = dev_id;
1919
1920         mutex_lock(&dev->wl->mutex);
1921         b43_do_interrupt_thread(dev);
1922         mmiowb();
1923         mutex_unlock(&dev->wl->mutex);
1924
1925         return IRQ_HANDLED;
1926 }
1927
1928 static irqreturn_t b43_do_interrupt(struct b43_wldev *dev)
1929 {
1930         u32 reason;
1931
1932         /* This code runs under wl->hardirq_lock, but _only_ on non-SDIO busses.
1933          * On SDIO, this runs under wl->mutex. */
1934
1935         reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
1936         if (reason == 0xffffffff)       /* shared IRQ */
1937                 return IRQ_NONE;
1938         reason &= dev->irq_mask;
1939         if (!reason)
1940                 return IRQ_HANDLED;
1941
1942         dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON)
1943             & 0x0001DC00;
1944         dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON)
1945             & 0x0000DC00;
1946         dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON)
1947             & 0x0000DC00;
1948         dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON)
1949             & 0x0001DC00;
1950         dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON)
1951             & 0x0000DC00;
1952 /* Unused ring
1953         dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON)
1954             & 0x0000DC00;
1955 */
1956
1957         /* ACK the interrupt. */
1958         b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason);
1959         b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]);
1960         b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]);
1961         b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]);
1962         b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]);
1963         b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]);
1964 /* Unused ring
1965         b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]);
1966 */
1967
1968         /* Disable IRQs on the device. The IRQ thread handler will re-enable them. */
1969         b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0);
1970         /* Save the reason bitmasks for the IRQ thread handler. */
1971         dev->irq_reason = reason;
1972
1973         return IRQ_WAKE_THREAD;
1974 }
1975
1976 /* Interrupt handler top-half. This runs with interrupts disabled. */
1977 static irqreturn_t b43_interrupt_handler(int irq, void *dev_id)
1978 {
1979         struct b43_wldev *dev = dev_id;
1980         irqreturn_t ret;
1981
1982         if (unlikely(b43_status(dev) < B43_STAT_STARTED))
1983                 return IRQ_NONE;
1984
1985         spin_lock(&dev->wl->hardirq_lock);
1986         ret = b43_do_interrupt(dev);
1987         mmiowb();
1988         spin_unlock(&dev->wl->hardirq_lock);
1989
1990         return ret;
1991 }
1992
1993 /* SDIO interrupt handler. This runs in process context. */
1994 static void b43_sdio_interrupt_handler(struct b43_wldev *dev)
1995 {
1996         struct b43_wl *wl = dev->wl;
1997         irqreturn_t ret;
1998
1999         mutex_lock(&wl->mutex);
2000
2001         ret = b43_do_interrupt(dev);
2002         if (ret == IRQ_WAKE_THREAD)
2003                 b43_do_interrupt_thread(dev);
2004
2005         mutex_unlock(&wl->mutex);
2006 }
2007
2008 void b43_do_release_fw(struct b43_firmware_file *fw)
2009 {
2010         release_firmware(fw->data);
2011         fw->data = NULL;
2012         fw->filename = NULL;
2013 }
2014
2015 static void b43_release_firmware(struct b43_wldev *dev)
2016 {
2017         b43_do_release_fw(&dev->fw.ucode);
2018         b43_do_release_fw(&dev->fw.pcm);
2019         b43_do_release_fw(&dev->fw.initvals);
2020         b43_do_release_fw(&dev->fw.initvals_band);
2021 }
2022
2023 static void b43_print_fw_helptext(struct b43_wl *wl, bool error)
2024 {
2025         const char text[] =
2026                 "You must go to " \
2027                 "http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware " \
2028                 "and download the correct firmware for this driver version. " \
2029                 "Please carefully read all instructions on this website.\n";
2030
2031         if (error)
2032                 b43err(wl, text);
2033         else
2034                 b43warn(wl, text);
2035 }
2036
2037 int b43_do_request_fw(struct b43_request_fw_context *ctx,
2038                       const char *name,
2039                       struct b43_firmware_file *fw)
2040 {
2041         const struct firmware *blob;
2042         struct b43_fw_header *hdr;
2043         u32 size;
2044         int err;
2045
2046         if (!name) {
2047                 /* Don't fetch anything. Free possibly cached firmware. */
2048                 /* FIXME: We should probably keep it anyway, to save some headache
2049                  * on suspend/resume with multiband devices. */
2050                 b43_do_release_fw(fw);
2051                 return 0;
2052         }
2053         if (fw->filename) {
2054                 if ((fw->type == ctx->req_type) &&
2055                     (strcmp(fw->filename, name) == 0))
2056                         return 0; /* Already have this fw. */
2057                 /* Free the cached firmware first. */
2058                 /* FIXME: We should probably do this later after we successfully
2059                  * got the new fw. This could reduce headache with multiband devices.
2060                  * We could also redesign this to cache the firmware for all possible
2061                  * bands all the time. */
2062                 b43_do_release_fw(fw);
2063         }
2064
2065         switch (ctx->req_type) {
2066         case B43_FWTYPE_PROPRIETARY:
2067                 snprintf(ctx->fwname, sizeof(ctx->fwname),
2068                          "b43%s/%s.fw",
2069                          modparam_fwpostfix, name);
2070                 break;
2071         case B43_FWTYPE_OPENSOURCE:
2072                 snprintf(ctx->fwname, sizeof(ctx->fwname),
2073                          "b43-open%s/%s.fw",
2074                          modparam_fwpostfix, name);
2075                 break;
2076         default:
2077                 B43_WARN_ON(1);
2078                 return -ENOSYS;
2079         }
2080         err = request_firmware(&blob, ctx->fwname, ctx->dev->dev->dev);
2081         if (err == -ENOENT) {
2082                 snprintf(ctx->errors[ctx->req_type],
2083                          sizeof(ctx->errors[ctx->req_type]),
2084                          "Firmware file \"%s\" not found\n", ctx->fwname);
2085                 return err;
2086         } else if (err) {
2087                 snprintf(ctx->errors[ctx->req_type],
2088                          sizeof(ctx->errors[ctx->req_type]),
2089                          "Firmware file \"%s\" request failed (err=%d)\n",
2090                          ctx->fwname, err);
2091                 return err;
2092         }
2093         if (blob->size < sizeof(struct b43_fw_header))
2094                 goto err_format;
2095         hdr = (struct b43_fw_header *)(blob->data);
2096         switch (hdr->type) {
2097         case B43_FW_TYPE_UCODE:
2098         case B43_FW_TYPE_PCM:
2099                 size = be32_to_cpu(hdr->size);
2100                 if (size != blob->size - sizeof(struct b43_fw_header))
2101                         goto err_format;
2102                 /* fallthrough */
2103         case B43_FW_TYPE_IV:
2104                 if (hdr->ver != 1)
2105                         goto err_format;
2106                 break;
2107         default:
2108                 goto err_format;
2109         }
2110
2111         fw->data = blob;
2112         fw->filename = name;
2113         fw->type = ctx->req_type;
2114
2115         return 0;
2116
2117 err_format:
2118         snprintf(ctx->errors[ctx->req_type],
2119                  sizeof(ctx->errors[ctx->req_type]),
2120                  "Firmware file \"%s\" format error.\n", ctx->fwname);
2121         release_firmware(blob);
2122
2123         return -EPROTO;
2124 }
2125
2126 static int b43_try_request_fw(struct b43_request_fw_context *ctx)
2127 {
2128         struct b43_wldev *dev = ctx->dev;
2129         struct b43_firmware *fw = &ctx->dev->fw;
2130         const u8 rev = ctx->dev->dev->core_rev;
2131         const char *filename;
2132         u32 tmshigh;
2133         int err;
2134
2135         /* Get microcode */
2136         if ((rev >= 5) && (rev <= 10))
2137                 filename = "ucode5";
2138         else if ((rev >= 11) && (rev <= 12))
2139                 filename = "ucode11";
2140         else if (rev == 13)
2141                 filename = "ucode13";
2142         else if (rev == 14)
2143                 filename = "ucode14";
2144         else if (rev == 15)
2145                 filename = "ucode15";
2146         else if ((rev >= 16) && (rev <= 20))
2147                 filename = "ucode16_mimo";
2148         else
2149                 goto err_no_ucode;
2150         err = b43_do_request_fw(ctx, filename, &fw->ucode);
2151         if (err)
2152                 goto err_load;
2153
2154         /* Get PCM code */
2155         if ((rev >= 5) && (rev <= 10))
2156                 filename = "pcm5";
2157         else if (rev >= 11)
2158                 filename = NULL;
2159         else
2160                 goto err_no_pcm;
2161         fw->pcm_request_failed = 0;
2162         err = b43_do_request_fw(ctx, filename, &fw->pcm);
2163         if (err == -ENOENT) {
2164                 /* We did not find a PCM file? Not fatal, but
2165                  * core rev <= 10 must do without hwcrypto then. */
2166                 fw->pcm_request_failed = 1;
2167         } else if (err)
2168                 goto err_load;
2169
2170         /* Get initvals */
2171         switch (dev->phy.type) {
2172         case B43_PHYTYPE_A:
2173                 if ((rev >= 5) && (rev <= 10)) {
2174                         tmshigh = ssb_read32(dev->dev->sdev, SSB_TMSHIGH);
2175                         if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
2176                                 filename = "a0g1initvals5";
2177                         else
2178                                 filename = "a0g0initvals5";
2179                 } else
2180                         goto err_no_initvals;
2181                 break;
2182         case B43_PHYTYPE_G:
2183                 if ((rev >= 5) && (rev <= 10))
2184                         filename = "b0g0initvals5";
2185                 else if (rev >= 13)
2186                         filename = "b0g0initvals13";
2187                 else
2188                         goto err_no_initvals;
2189                 break;
2190         case B43_PHYTYPE_N:
2191                 if (rev >= 16)
2192                         filename = "n0initvals16";
2193                 else if ((rev >= 11) && (rev <= 12))
2194                         filename = "n0initvals11";
2195                 else
2196                         goto err_no_initvals;
2197                 break;
2198         case B43_PHYTYPE_LP:
2199                 if (rev == 13)
2200                         filename = "lp0initvals13";
2201                 else if (rev == 14)
2202                         filename = "lp0initvals14";
2203                 else if (rev >= 15)
2204                         filename = "lp0initvals15";
2205                 else
2206                         goto err_no_initvals;
2207                 break;
2208         default:
2209                 goto err_no_initvals;
2210         }
2211         err = b43_do_request_fw(ctx, filename, &fw->initvals);
2212         if (err)
2213                 goto err_load;
2214
2215         /* Get bandswitch initvals */
2216         switch (dev->phy.type) {
2217         case B43_PHYTYPE_A:
2218                 if ((rev >= 5) && (rev <= 10)) {
2219                         tmshigh = ssb_read32(dev->dev->sdev, SSB_TMSHIGH);
2220                         if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
2221                                 filename = "a0g1bsinitvals5";
2222                         else
2223                                 filename = "a0g0bsinitvals5";
2224                 } else if (rev >= 11)
2225                         filename = NULL;
2226                 else
2227                         goto err_no_initvals;
2228                 break;
2229         case B43_PHYTYPE_G:
2230                 if ((rev >= 5) && (rev <= 10))
2231                         filename = "b0g0bsinitvals5";
2232                 else if (rev >= 11)
2233                         filename = NULL;
2234                 else
2235                         goto err_no_initvals;
2236                 break;
2237         case B43_PHYTYPE_N:
2238                 if (rev >= 16)
2239                         filename = "n0bsinitvals16";
2240                 else if ((rev >= 11) && (rev <= 12))
2241                         filename = "n0bsinitvals11";
2242                 else
2243                         goto err_no_initvals;
2244                 break;
2245         case B43_PHYTYPE_LP:
2246                 if (rev == 13)
2247                         filename = "lp0bsinitvals13";
2248                 else if (rev == 14)
2249                         filename = "lp0bsinitvals14";
2250                 else if (rev >= 15)
2251                         filename = "lp0bsinitvals15";
2252                 else
2253                         goto err_no_initvals;
2254                 break;
2255         default:
2256                 goto err_no_initvals;
2257         }
2258         err = b43_do_request_fw(ctx, filename, &fw->initvals_band);
2259         if (err)
2260                 goto err_load;
2261
2262         return 0;
2263
2264 err_no_ucode:
2265         err = ctx->fatal_failure = -EOPNOTSUPP;
2266         b43err(dev->wl, "The driver does not know which firmware (ucode) "
2267                "is required for your device (wl-core rev %u)\n", rev);
2268         goto error;
2269
2270 err_no_pcm:
2271         err = ctx->fatal_failure = -EOPNOTSUPP;
2272         b43err(dev->wl, "The driver does not know which firmware (PCM) "
2273                "is required for your device (wl-core rev %u)\n", rev);
2274         goto error;
2275
2276 err_no_initvals:
2277         err = ctx->fatal_failure = -EOPNOTSUPP;
2278         b43err(dev->wl, "The driver does not know which firmware (initvals) "
2279                "is required for your device (wl-core rev %u)\n", rev);
2280         goto error;
2281
2282 err_load:
2283         /* We failed to load this firmware image. The error message
2284          * already is in ctx->errors. Return and let our caller decide
2285          * what to do. */
2286         goto error;
2287
2288 error:
2289         b43_release_firmware(dev);
2290         return err;
2291 }
2292
2293 static int b43_request_firmware(struct b43_wldev *dev)
2294 {
2295         struct b43_request_fw_context *ctx;
2296         unsigned int i;
2297         int err;
2298         const char *errmsg;
2299
2300         ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
2301         if (!ctx)
2302                 return -ENOMEM;
2303         ctx->dev = dev;
2304
2305         ctx->req_type = B43_FWTYPE_PROPRIETARY;
2306         err = b43_try_request_fw(ctx);
2307         if (!err)
2308                 goto out; /* Successfully loaded it. */
2309         err = ctx->fatal_failure;
2310         if (err)
2311                 goto out;
2312
2313         ctx->req_type = B43_FWTYPE_OPENSOURCE;
2314         err = b43_try_request_fw(ctx);
2315         if (!err)
2316                 goto out; /* Successfully loaded it. */
2317         err = ctx->fatal_failure;
2318         if (err)
2319                 goto out;
2320
2321         /* Could not find a usable firmware. Print the errors. */
2322         for (i = 0; i < B43_NR_FWTYPES; i++) {
2323                 errmsg = ctx->errors[i];
2324                 if (strlen(errmsg))
2325                         b43err(dev->wl, errmsg);
2326         }
2327         b43_print_fw_helptext(dev->wl, 1);
2328         err = -ENOENT;
2329
2330 out:
2331         kfree(ctx);
2332         return err;
2333 }
2334
2335 static int b43_upload_microcode(struct b43_wldev *dev)
2336 {
2337         struct wiphy *wiphy = dev->wl->hw->wiphy;
2338         const size_t hdr_len = sizeof(struct b43_fw_header);
2339         const __be32 *data;
2340         unsigned int i, len;
2341         u16 fwrev, fwpatch, fwdate, fwtime;
2342         u32 tmp, macctl;
2343         int err = 0;
2344
2345         /* Jump the microcode PSM to offset 0 */
2346         macctl = b43_read32(dev, B43_MMIO_MACCTL);
2347         B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN);
2348         macctl |= B43_MACCTL_PSM_JMP0;
2349         b43_write32(dev, B43_MMIO_MACCTL, macctl);
2350         /* Zero out all microcode PSM registers and shared memory. */
2351         for (i = 0; i < 64; i++)
2352                 b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0);
2353         for (i = 0; i < 4096; i += 2)
2354                 b43_shm_write16(dev, B43_SHM_SHARED, i, 0);
2355
2356         /* Upload Microcode. */
2357         data = (__be32 *) (dev->fw.ucode.data->data + hdr_len);
2358         len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32);
2359         b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000);
2360         for (i = 0; i < len; i++) {
2361                 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
2362                 udelay(10);
2363         }
2364
2365         if (dev->fw.pcm.data) {
2366                 /* Upload PCM data. */
2367                 data = (__be32 *) (dev->fw.pcm.data->data + hdr_len);
2368                 len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32);
2369                 b43_shm_control_word(dev, B43_SHM_HW, 0x01EA);
2370                 b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000);
2371                 /* No need for autoinc bit in SHM_HW */
2372                 b43_shm_control_word(dev, B43_SHM_HW, 0x01EB);
2373                 for (i = 0; i < len; i++) {
2374                         b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
2375                         udelay(10);
2376                 }
2377         }
2378
2379         b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL);
2380
2381         /* Start the microcode PSM */
2382         macctl = b43_read32(dev, B43_MMIO_MACCTL);
2383         macctl &= ~B43_MACCTL_PSM_JMP0;
2384         macctl |= B43_MACCTL_PSM_RUN;
2385         b43_write32(dev, B43_MMIO_MACCTL, macctl);
2386
2387         /* Wait for the microcode to load and respond */
2388         i = 0;
2389         while (1) {
2390                 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2391                 if (tmp == B43_IRQ_MAC_SUSPENDED)
2392                         break;
2393                 i++;
2394                 if (i >= 20) {
2395                         b43err(dev->wl, "Microcode not responding\n");
2396                         b43_print_fw_helptext(dev->wl, 1);
2397                         err = -ENODEV;
2398                         goto error;
2399                 }
2400                 msleep(50);
2401         }
2402         b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);       /* dummy read */
2403
2404         /* Get and check the revisions. */
2405         fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV);
2406         fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH);
2407         fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE);
2408         fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME);
2409
2410         if (fwrev <= 0x128) {
2411                 b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from "
2412                        "binary drivers older than version 4.x is unsupported. "
2413                        "You must upgrade your firmware files.\n");
2414                 b43_print_fw_helptext(dev->wl, 1);
2415                 err = -EOPNOTSUPP;
2416                 goto error;
2417         }
2418         dev->fw.rev = fwrev;
2419         dev->fw.patch = fwpatch;
2420         dev->fw.opensource = (fwdate == 0xFFFF);
2421
2422         /* Default to use-all-queues. */
2423         dev->wl->hw->queues = dev->wl->mac80211_initially_registered_queues;
2424         dev->qos_enabled = !!modparam_qos;
2425         /* Default to firmware/hardware crypto acceleration. */
2426         dev->hwcrypto_enabled = 1;
2427
2428         if (dev->fw.opensource) {
2429                 u16 fwcapa;
2430
2431                 /* Patchlevel info is encoded in the "time" field. */
2432                 dev->fw.patch = fwtime;
2433                 b43info(dev->wl, "Loading OpenSource firmware version %u.%u\n",
2434                         dev->fw.rev, dev->fw.patch);
2435
2436                 fwcapa = b43_fwcapa_read(dev);
2437                 if (!(fwcapa & B43_FWCAPA_HWCRYPTO) || dev->fw.pcm_request_failed) {
2438                         b43info(dev->wl, "Hardware crypto acceleration not supported by firmware\n");
2439                         /* Disable hardware crypto and fall back to software crypto. */
2440                         dev->hwcrypto_enabled = 0;
2441                 }
2442                 if (!(fwcapa & B43_FWCAPA_QOS)) {
2443                         b43info(dev->wl, "QoS not supported by firmware\n");
2444                         /* Disable QoS. Tweak hw->queues to 1. It will be restored before
2445                          * ieee80211_unregister to make sure the networking core can
2446                          * properly free possible resources. */
2447                         dev->wl->hw->queues = 1;
2448                         dev->qos_enabled = 0;
2449                 }
2450         } else {
2451                 b43info(dev->wl, "Loading firmware version %u.%u "
2452                         "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n",
2453                         fwrev, fwpatch,
2454                         (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
2455                         (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F);
2456                 if (dev->fw.pcm_request_failed) {
2457                         b43warn(dev->wl, "No \"pcm5.fw\" firmware file found. "
2458                                 "Hardware accelerated cryptography is disabled.\n");
2459                         b43_print_fw_helptext(dev->wl, 0);
2460                 }
2461         }
2462
2463         snprintf(wiphy->fw_version, sizeof(wiphy->fw_version), "%u.%u",
2464                         dev->fw.rev, dev->fw.patch);
2465         wiphy->hw_version = dev->dev->core_id;
2466
2467         if (b43_is_old_txhdr_format(dev)) {
2468                 /* We're over the deadline, but we keep support for old fw
2469                  * until it turns out to be in major conflict with something new. */
2470                 b43warn(dev->wl, "You are using an old firmware image. "
2471                         "Support for old firmware will be removed soon "
2472                         "(official deadline was July 2008).\n");
2473                 b43_print_fw_helptext(dev->wl, 0);
2474         }
2475
2476         return 0;
2477
2478 error:
2479         macctl = b43_read32(dev, B43_MMIO_MACCTL);
2480         macctl &= ~B43_MACCTL_PSM_RUN;
2481         macctl |= B43_MACCTL_PSM_JMP0;
2482         b43_write32(dev, B43_MMIO_MACCTL, macctl);
2483
2484         return err;
2485 }
2486
2487 static int b43_write_initvals(struct b43_wldev *dev,
2488                               const struct b43_iv *ivals,
2489                               size_t count,
2490                               size_t array_size)
2491 {
2492         const struct b43_iv *iv;
2493         u16 offset;
2494         size_t i;
2495         bool bit32;
2496
2497         BUILD_BUG_ON(sizeof(struct b43_iv) != 6);
2498         iv = ivals;
2499         for (i = 0; i < count; i++) {
2500                 if (array_size < sizeof(iv->offset_size))
2501                         goto err_format;
2502                 array_size -= sizeof(iv->offset_size);
2503                 offset = be16_to_cpu(iv->offset_size);
2504                 bit32 = !!(offset & B43_IV_32BIT);
2505                 offset &= B43_IV_OFFSET_MASK;
2506                 if (offset >= 0x1000)
2507                         goto err_format;
2508                 if (bit32) {
2509                         u32 value;
2510
2511                         if (array_size < sizeof(iv->data.d32))
2512                                 goto err_format;
2513                         array_size -= sizeof(iv->data.d32);
2514
2515                         value = get_unaligned_be32(&iv->data.d32);
2516                         b43_write32(dev, offset, value);
2517
2518                         iv = (const struct b43_iv *)((const uint8_t *)iv +
2519                                                         sizeof(__be16) +
2520                                                         sizeof(__be32));
2521                 } else {
2522                         u16 value;
2523
2524                         if (array_size < sizeof(iv->data.d16))
2525                                 goto err_format;
2526                         array_size -= sizeof(iv->data.d16);
2527
2528                         value = be16_to_cpu(iv->data.d16);
2529                         b43_write16(dev, offset, value);
2530
2531                         iv = (const struct b43_iv *)((const uint8_t *)iv +
2532                                                         sizeof(__be16) +
2533                                                         sizeof(__be16));
2534                 }
2535         }
2536         if (array_size)
2537                 goto err_format;
2538
2539         return 0;
2540
2541 err_format:
2542         b43err(dev->wl, "Initial Values Firmware file-format error.\n");
2543         b43_print_fw_helptext(dev->wl, 1);
2544
2545         return -EPROTO;
2546 }
2547
2548 static int b43_upload_initvals(struct b43_wldev *dev)
2549 {
2550         const size_t hdr_len = sizeof(struct b43_fw_header);
2551         const struct b43_fw_header *hdr;
2552         struct b43_firmware *fw = &dev->fw;
2553         const struct b43_iv *ivals;
2554         size_t count;
2555         int err;
2556
2557         hdr = (const struct b43_fw_header *)(fw->initvals.data->data);
2558         ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len);
2559         count = be32_to_cpu(hdr->size);
2560         err = b43_write_initvals(dev, ivals, count,
2561                                  fw->initvals.data->size - hdr_len);
2562         if (err)
2563                 goto out;
2564         if (fw->initvals_band.data) {
2565                 hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data);
2566                 ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len);
2567                 count = be32_to_cpu(hdr->size);
2568                 err = b43_write_initvals(dev, ivals, count,
2569                                          fw->initvals_band.data->size - hdr_len);
2570                 if (err)
2571                         goto out;
2572         }
2573 out:
2574
2575         return err;
2576 }
2577
2578 /* Initialize the GPIOs
2579  * http://bcm-specs.sipsolutions.net/GPIO
2580  */
2581 static struct ssb_device *b43_ssb_gpio_dev(struct b43_wldev *dev)
2582 {
2583         struct ssb_bus *bus = dev->dev->sdev->bus;
2584
2585 #ifdef CONFIG_SSB_DRIVER_PCICORE
2586         return (bus->chipco.dev ? bus->chipco.dev : bus->pcicore.dev);
2587 #else
2588         return bus->chipco.dev;
2589 #endif
2590 }
2591
2592 static int b43_gpio_init(struct b43_wldev *dev)
2593 {
2594         struct ssb_device *gpiodev;
2595         u32 mask, set;
2596
2597         b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2598                     & ~B43_MACCTL_GPOUTSMSK);
2599
2600         b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK)
2601                     | 0x000F);
2602
2603         mask = 0x0000001F;
2604         set = 0x0000000F;
2605         if (dev->dev->chip_id == 0x4301) {
2606                 mask |= 0x0060;
2607                 set |= 0x0060;
2608         }
2609         if (0 /* FIXME: conditional unknown */ ) {
2610                 b43_write16(dev, B43_MMIO_GPIO_MASK,
2611                             b43_read16(dev, B43_MMIO_GPIO_MASK)
2612                             | 0x0100);
2613                 mask |= 0x0180;
2614                 set |= 0x0180;
2615         }
2616         if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL) {
2617                 b43_write16(dev, B43_MMIO_GPIO_MASK,
2618                             b43_read16(dev, B43_MMIO_GPIO_MASK)
2619                             | 0x0200);
2620                 mask |= 0x0200;
2621                 set |= 0x0200;
2622         }
2623         if (dev->dev->core_rev >= 2)
2624                 mask |= 0x0010; /* FIXME: This is redundant. */
2625
2626         gpiodev = b43_ssb_gpio_dev(dev);
2627         if (gpiodev)
2628                 ssb_write32(gpiodev, B43_GPIO_CONTROL,
2629                             (ssb_read32(gpiodev, B43_GPIO_CONTROL)
2630                              & mask) | set);
2631
2632         return 0;
2633 }
2634
2635 /* Turn off all GPIO stuff. Call this on module unload, for example. */
2636 static void b43_gpio_cleanup(struct b43_wldev *dev)
2637 {
2638         struct ssb_device *gpiodev;
2639
2640         gpiodev = b43_ssb_gpio_dev(dev);
2641         if (gpiodev)
2642                 ssb_write32(gpiodev, B43_GPIO_CONTROL, 0);
2643 }
2644
2645 /* http://bcm-specs.sipsolutions.net/EnableMac */
2646 void b43_mac_enable(struct b43_wldev *dev)
2647 {
2648         if (b43_debug(dev, B43_DBG_FIRMWARE)) {
2649                 u16 fwstate;
2650
2651                 fwstate = b43_shm_read16(dev, B43_SHM_SHARED,
2652                                          B43_SHM_SH_UCODESTAT);
2653                 if ((fwstate != B43_SHM_SH_UCODESTAT_SUSP) &&
2654                     (fwstate != B43_SHM_SH_UCODESTAT_SLEEP)) {
2655                         b43err(dev->wl, "b43_mac_enable(): The firmware "
2656                                "should be suspended, but current state is %u\n",
2657                                fwstate);
2658                 }
2659         }
2660
2661         dev->mac_suspended--;
2662         B43_WARN_ON(dev->mac_suspended < 0);
2663         if (dev->mac_suspended == 0) {
2664                 b43_write32(dev, B43_MMIO_MACCTL,
2665                             b43_read32(dev, B43_MMIO_MACCTL)
2666                             | B43_MACCTL_ENABLED);
2667                 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON,
2668                             B43_IRQ_MAC_SUSPENDED);
2669                 /* Commit writes */
2670                 b43_read32(dev, B43_MMIO_MACCTL);
2671                 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2672                 b43_power_saving_ctl_bits(dev, 0);
2673         }
2674 }
2675
2676 /* http://bcm-specs.sipsolutions.net/SuspendMAC */
2677 void b43_mac_suspend(struct b43_wldev *dev)
2678 {
2679         int i;
2680         u32 tmp;
2681
2682         might_sleep();
2683         B43_WARN_ON(dev->mac_suspended < 0);
2684
2685         if (dev->mac_suspended == 0) {
2686                 b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
2687                 b43_write32(dev, B43_MMIO_MACCTL,
2688                             b43_read32(dev, B43_MMIO_MACCTL)
2689                             & ~B43_MACCTL_ENABLED);
2690                 /* force pci to flush the write */
2691                 b43_read32(dev, B43_MMIO_MACCTL);
2692                 for (i = 35; i; i--) {
2693                         tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2694                         if (tmp & B43_IRQ_MAC_SUSPENDED)
2695                                 goto out;
2696                         udelay(10);
2697                 }
2698                 /* Hm, it seems this will take some time. Use msleep(). */
2699                 for (i = 40; i; i--) {
2700                         tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2701                         if (tmp & B43_IRQ_MAC_SUSPENDED)
2702                                 goto out;
2703                         msleep(1);
2704                 }
2705                 b43err(dev->wl, "MAC suspend failed\n");
2706         }
2707 out:
2708         dev->mac_suspended++;
2709 }
2710
2711 /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/MacPhyClkSet */
2712 void b43_mac_phy_clock_set(struct b43_wldev *dev, bool on)
2713 {
2714         u32 tmslow = ssb_read32(dev->sdev, SSB_TMSLOW);
2715         if (on)
2716                 tmslow |= B43_TMSLOW_MACPHYCLKEN;
2717         else
2718                 tmslow &= ~B43_TMSLOW_MACPHYCLKEN;
2719         ssb_write32(dev->sdev, SSB_TMSLOW, tmslow);
2720 }
2721
2722 static void b43_adjust_opmode(struct b43_wldev *dev)
2723 {
2724         struct b43_wl *wl = dev->wl;
2725         u32 ctl;
2726         u16 cfp_pretbtt;
2727
2728         ctl = b43_read32(dev, B43_MMIO_MACCTL);
2729         /* Reset status to STA infrastructure mode. */
2730         ctl &= ~B43_MACCTL_AP;
2731         ctl &= ~B43_MACCTL_KEEP_CTL;
2732         ctl &= ~B43_MACCTL_KEEP_BADPLCP;
2733         ctl &= ~B43_MACCTL_KEEP_BAD;
2734         ctl &= ~B43_MACCTL_PROMISC;
2735         ctl &= ~B43_MACCTL_BEACPROMISC;
2736         ctl |= B43_MACCTL_INFRA;
2737
2738         if (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
2739             b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT))
2740                 ctl |= B43_MACCTL_AP;
2741         else if (b43_is_mode(wl, NL80211_IFTYPE_ADHOC))
2742                 ctl &= ~B43_MACCTL_INFRA;
2743
2744         if (wl->filter_flags & FIF_CONTROL)
2745                 ctl |= B43_MACCTL_KEEP_CTL;
2746         if (wl->filter_flags & FIF_FCSFAIL)
2747                 ctl |= B43_MACCTL_KEEP_BAD;
2748         if (wl->filter_flags & FIF_PLCPFAIL)
2749                 ctl |= B43_MACCTL_KEEP_BADPLCP;
2750         if (wl->filter_flags & FIF_PROMISC_IN_BSS)
2751                 ctl |= B43_MACCTL_PROMISC;
2752         if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
2753                 ctl |= B43_MACCTL_BEACPROMISC;
2754
2755         /* Workaround: On old hardware the HW-MAC-address-filter
2756          * doesn't work properly, so always run promisc in filter
2757          * it in software. */
2758         if (dev->dev->core_rev <= 4)
2759                 ctl |= B43_MACCTL_PROMISC;
2760
2761         b43_write32(dev, B43_MMIO_MACCTL, ctl);
2762
2763         cfp_pretbtt = 2;
2764         if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) {
2765                 if (dev->dev->chip_id == 0x4306 &&
2766                     dev->dev->chip_rev == 3)
2767                         cfp_pretbtt = 100;
2768                 else
2769                         cfp_pretbtt = 50;
2770         }
2771         b43_write16(dev, 0x612, cfp_pretbtt);
2772
2773         /* FIXME: We don't currently implement the PMQ mechanism,
2774          *        so always disable it. If we want to implement PMQ,
2775          *        we need to enable it here (clear DISCPMQ) in AP mode.
2776          */
2777         if (0  /* ctl & B43_MACCTL_AP */) {
2778                 b43_write32(dev, B43_MMIO_MACCTL,
2779                             b43_read32(dev, B43_MMIO_MACCTL)
2780                             & ~B43_MACCTL_DISCPMQ);
2781         } else {
2782                 b43_write32(dev, B43_MMIO_MACCTL,
2783                             b43_read32(dev, B43_MMIO_MACCTL)
2784                             | B43_MACCTL_DISCPMQ);
2785         }
2786 }
2787
2788 static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm)
2789 {
2790         u16 offset;
2791
2792         if (is_ofdm) {
2793                 offset = 0x480;
2794                 offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
2795         } else {
2796                 offset = 0x4C0;
2797                 offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
2798         }
2799         b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20,
2800                         b43_shm_read16(dev, B43_SHM_SHARED, offset));
2801 }
2802
2803 static void b43_rate_memory_init(struct b43_wldev *dev)
2804 {
2805         switch (dev->phy.type) {
2806         case B43_PHYTYPE_A:
2807         case B43_PHYTYPE_G:
2808         case B43_PHYTYPE_N:
2809         case B43_PHYTYPE_LP:
2810                 b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1);
2811                 b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1);
2812                 b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1);
2813                 b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1);
2814                 b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1);
2815                 b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1);
2816                 b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1);
2817                 if (dev->phy.type == B43_PHYTYPE_A)
2818                         break;
2819                 /* fallthrough */
2820         case B43_PHYTYPE_B:
2821                 b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0);
2822                 b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0);
2823                 b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0);
2824                 b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0);
2825                 break;
2826         default:
2827                 B43_WARN_ON(1);
2828         }
2829 }
2830
2831 /* Set the default values for the PHY TX Control Words. */
2832 static void b43_set_phytxctl_defaults(struct b43_wldev *dev)
2833 {
2834         u16 ctl = 0;
2835
2836         ctl |= B43_TXH_PHY_ENC_CCK;
2837         ctl |= B43_TXH_PHY_ANT01AUTO;
2838         ctl |= B43_TXH_PHY_TXPWR;
2839
2840         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl);
2841         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, ctl);
2842         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, ctl);
2843 }
2844
2845 /* Set the TX-Antenna for management frames sent by firmware. */
2846 static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna)
2847 {
2848         u16 ant;
2849         u16 tmp;
2850
2851         ant = b43_antenna_to_phyctl(antenna);
2852
2853         /* For ACK/CTS */
2854         tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL);
2855         tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
2856         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp);
2857         /* For Probe Resposes */
2858         tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL);
2859         tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
2860         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp);
2861 }
2862
2863 /* This is the opposite of b43_chip_init() */
2864 static void b43_chip_exit(struct b43_wldev *dev)
2865 {
2866         b43_phy_exit(dev);
2867         b43_gpio_cleanup(dev);
2868         /* firmware is released later */
2869 }
2870
2871 /* Initialize the chip
2872  * http://bcm-specs.sipsolutions.net/ChipInit
2873  */
2874 static int b43_chip_init(struct b43_wldev *dev)
2875 {
2876         struct b43_phy *phy = &dev->phy;
2877         int err;
2878         u32 macctl;
2879         u16 value16;
2880
2881         /* Initialize the MAC control */
2882         macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED;
2883         if (dev->phy.gmode)
2884                 macctl |= B43_MACCTL_GMODE;
2885         macctl |= B43_MACCTL_INFRA;
2886         b43_write32(dev, B43_MMIO_MACCTL, macctl);
2887
2888         err = b43_request_firmware(dev);
2889         if (err)
2890                 goto out;
2891         err = b43_upload_microcode(dev);
2892         if (err)
2893                 goto out;       /* firmware is released later */
2894
2895         err = b43_gpio_init(dev);
2896         if (err)
2897                 goto out;       /* firmware is released later */
2898
2899         err = b43_upload_initvals(dev);
2900         if (err)
2901                 goto err_gpio_clean;
2902
2903         /* Turn the Analog on and initialize the PHY. */
2904         phy->ops->switch_analog(dev, 1);
2905         err = b43_phy_init(dev);
2906         if (err)
2907                 goto err_gpio_clean;
2908
2909         /* Disable Interference Mitigation. */
2910         if (phy->ops->interf_mitigation)
2911                 phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE);
2912
2913         /* Select the antennae */
2914         if (phy->ops->set_rx_antenna)
2915                 phy->ops->set_rx_antenna(dev, B43_ANTENNA_DEFAULT);
2916         b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT);
2917
2918         if (phy->type == B43_PHYTYPE_B) {
2919                 value16 = b43_read16(dev, 0x005E);
2920                 value16 |= 0x0004;
2921                 b43_write16(dev, 0x005E, value16);
2922         }
2923         b43_write32(dev, 0x0100, 0x01000000);
2924         if (dev->dev->core_rev < 5)
2925                 b43_write32(dev, 0x010C, 0x01000000);
2926
2927         b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2928                     & ~B43_MACCTL_INFRA);
2929         b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2930                     | B43_MACCTL_INFRA);
2931
2932         /* Probe Response Timeout value */
2933         /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
2934         b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000);
2935
2936         /* Initially set the wireless operation mode. */
2937         b43_adjust_opmode(dev);
2938
2939         if (dev->dev->core_rev < 3) {
2940                 b43_write16(dev, 0x060E, 0x0000);
2941                 b43_write16(dev, 0x0610, 0x8000);
2942                 b43_write16(dev, 0x0604, 0x0000);
2943                 b43_write16(dev, 0x0606, 0x0200);
2944         } else {
2945                 b43_write32(dev, 0x0188, 0x80000000);
2946                 b43_write32(dev, 0x018C, 0x02000000);
2947         }
2948         b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000);
2949         b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
2950         b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
2951         b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
2952         b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
2953         b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
2954         b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
2955
2956         b43_mac_phy_clock_set(dev, true);
2957
2958         b43_write16(dev, B43_MMIO_POWERUP_DELAY,
2959                     dev->sdev->bus->chipco.fast_pwrup_delay);
2960
2961         err = 0;
2962         b43dbg(dev->wl, "Chip initialized\n");
2963 out:
2964         return err;
2965
2966 err_gpio_clean:
2967         b43_gpio_cleanup(dev);
2968         return err;
2969 }
2970
2971 static void b43_periodic_every60sec(struct b43_wldev *dev)
2972 {
2973         const struct b43_phy_operations *ops = dev->phy.ops;
2974
2975         if (ops->pwork_60sec)
2976                 ops->pwork_60sec(dev);
2977
2978         /* Force check the TX power emission now. */
2979         b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME);
2980 }
2981
2982 static void b43_periodic_every30sec(struct b43_wldev *dev)
2983 {
2984         /* Update device statistics. */
2985         b43_calculate_link_quality(dev);
2986 }
2987
2988 static void b43_periodic_every15sec(struct b43_wldev *dev)
2989 {
2990         struct b43_phy *phy = &dev->phy;
2991         u16 wdr;
2992
2993         if (dev->fw.opensource) {
2994                 /* Check if the firmware is still alive.
2995                  * It will reset the watchdog counter to 0 in its idle loop. */
2996                 wdr = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_WATCHDOG_REG);
2997                 if (unlikely(wdr)) {
2998                         b43err(dev->wl, "Firmware watchdog: The firmware died!\n");
2999                         b43_controller_restart(dev, "Firmware watchdog");
3000                         return;
3001                 } else {
3002                         b43_shm_write16(dev, B43_SHM_SCRATCH,
3003                                         B43_WATCHDOG_REG, 1);
3004                 }
3005         }
3006
3007         if (phy->ops->pwork_15sec)
3008                 phy->ops->pwork_15sec(dev);
3009
3010         atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
3011         wmb();
3012
3013 #if B43_DEBUG
3014         if (b43_debug(dev, B43_DBG_VERBOSESTATS)) {
3015                 unsigned int i;
3016
3017                 b43dbg(dev->wl, "Stats: %7u IRQs/sec, %7u TX/sec, %7u RX/sec\n",
3018                        dev->irq_count / 15,
3019                        dev->tx_count / 15,
3020                        dev->rx_count / 15);
3021                 dev->irq_count = 0;
3022                 dev->tx_count = 0;
3023                 dev->rx_count = 0;
3024                 for (i = 0; i < ARRAY_SIZE(dev->irq_bit_count); i++) {
3025                         if (dev->irq_bit_count[i]) {
3026                                 b43dbg(dev->wl, "Stats: %7u IRQ-%02u/sec (0x%08X)\n",
3027                                        dev->irq_bit_count[i] / 15, i, (1 << i));
3028                                 dev->irq_bit_count[i] = 0;
3029                         }
3030                 }
3031         }
3032 #endif
3033 }
3034
3035 static void do_periodic_work(struct b43_wldev *dev)
3036 {
3037         unsigned int state;
3038
3039         state = dev->periodic_state;
3040         if (state % 4 == 0)
3041                 b43_periodic_every60sec(dev);
3042         if (state % 2 == 0)
3043                 b43_periodic_every30sec(dev);
3044         b43_periodic_every15sec(dev);
3045 }
3046
3047 /* Periodic work locking policy:
3048  *      The whole periodic work handler is protected by
3049  *      wl->mutex. If another lock is needed somewhere in the
3050  *      pwork callchain, it's acquired in-place, where it's needed.
3051  */
3052 static void b43_periodic_work_handler(struct work_struct *work)
3053 {
3054         struct b43_wldev *dev = container_of(work, struct b43_wldev,
3055                                              periodic_work.work);
3056         struct b43_wl *wl = dev->wl;
3057         unsigned long delay;
3058
3059         mutex_lock(&wl->mutex);
3060
3061         if (unlikely(b43_status(dev) != B43_STAT_STARTED))
3062                 goto out;
3063         if (b43_debug(dev, B43_DBG_PWORK_STOP))
3064                 goto out_requeue;
3065
3066         do_periodic_work(dev);
3067
3068         dev->periodic_state++;
3069 out_requeue:
3070         if (b43_debug(dev, B43_DBG_PWORK_FAST))
3071                 delay = msecs_to_jiffies(50);
3072         else
3073                 delay = round_jiffies_relative(HZ * 15);
3074         ieee80211_queue_delayed_work(wl->hw, &dev->periodic_work, delay);
3075 out:
3076         mutex_unlock(&wl->mutex);
3077 }
3078
3079 static void b43_periodic_tasks_setup(struct b43_wldev *dev)
3080 {
3081         struct delayed_work *work = &dev->periodic_work;
3082
3083         dev->periodic_state = 0;
3084         INIT_DELAYED_WORK(work, b43_periodic_work_handler);
3085         ieee80211_queue_delayed_work(dev->wl->hw, work, 0);
3086 }
3087
3088 /* Check if communication with the device works correctly. */
3089 static int b43_validate_chipaccess(struct b43_wldev *dev)
3090 {
3091         u32 v, backup0, backup4;
3092
3093         backup0 = b43_shm_read32(dev, B43_SHM_SHARED, 0);
3094         backup4 = b43_shm_read32(dev, B43_SHM_SHARED, 4);
3095
3096         /* Check for read/write and endianness problems. */
3097         b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55);
3098         if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55)
3099                 goto error;
3100         b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA);
3101         if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA)
3102                 goto error;
3103
3104         /* Check if unaligned 32bit SHM_SHARED access works properly.
3105          * However, don't bail out on failure, because it's noncritical. */
3106         b43_shm_write16(dev, B43_SHM_SHARED, 0, 0x1122);
3107         b43_shm_write16(dev, B43_SHM_SHARED, 2, 0x3344);
3108         b43_shm_write16(dev, B43_SHM_SHARED, 4, 0x5566);
3109         b43_shm_write16(dev, B43_SHM_SHARED, 6, 0x7788);
3110         if (b43_shm_read32(dev, B43_SHM_SHARED, 2) != 0x55663344)
3111                 b43warn(dev->wl, "Unaligned 32bit SHM read access is broken\n");
3112         b43_shm_write32(dev, B43_SHM_SHARED, 2, 0xAABBCCDD);
3113         if (b43_shm_read16(dev, B43_SHM_SHARED, 0) != 0x1122 ||
3114             b43_shm_read16(dev, B43_SHM_SHARED, 2) != 0xCCDD ||
3115             b43_shm_read16(dev, B43_SHM_SHARED, 4) != 0xAABB ||
3116             b43_shm_read16(dev, B43_SHM_SHARED, 6) != 0x7788)
3117                 b43warn(dev->wl, "Unaligned 32bit SHM write access is broken\n");
3118
3119         b43_shm_write32(dev, B43_SHM_SHARED, 0, backup0);
3120         b43_shm_write32(dev, B43_SHM_SHARED, 4, backup4);
3121
3122         if ((dev->dev->core_rev >= 3) && (dev->dev->core_rev <= 10)) {
3123                 /* The 32bit register shadows the two 16bit registers
3124                  * with update sideeffects. Validate this. */
3125                 b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA);
3126                 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB);
3127                 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB)
3128                         goto error;
3129                 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC)
3130                         goto error;
3131         }
3132         b43_write32(dev, B43_MMIO_TSF_CFP_START, 0);
3133
3134         v = b43_read32(dev, B43_MMIO_MACCTL);
3135         v |= B43_MACCTL_GMODE;
3136         if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED))
3137                 goto error;
3138
3139         return 0;
3140 error:
3141         b43err(dev->wl, "Failed to validate the chipaccess\n");
3142         return -ENODEV;
3143 }
3144
3145 static void b43_security_init(struct b43_wldev *dev)
3146 {
3147         dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP);
3148         /* KTP is a word address, but we address SHM bytewise.
3149          * So multiply by two.
3150          */
3151         dev->ktp *= 2;
3152         /* Number of RCMTA address slots */
3153         b43_write16(dev, B43_MMIO_RCMTA_COUNT, B43_NR_PAIRWISE_KEYS);
3154         /* Clear the key memory. */
3155         b43_clear_keys(dev);
3156 }
3157
3158 #ifdef CONFIG_B43_HWRNG
3159 static int b43_rng_read(struct hwrng *rng, u32 *data)
3160 {
3161         struct b43_wl *wl = (struct b43_wl *)rng->priv;
3162         struct b43_wldev *dev;
3163         int count = -ENODEV;
3164
3165         mutex_lock(&wl->mutex);
3166         dev = wl->current_dev;
3167         if (likely(dev && b43_status(dev) >= B43_STAT_INITIALIZED)) {
3168                 *data = b43_read16(dev, B43_MMIO_RNG);
3169                 count = sizeof(u16);
3170         }
3171         mutex_unlock(&wl->mutex);
3172
3173         return count;
3174 }
3175 #endif /* CONFIG_B43_HWRNG */
3176
3177 static void b43_rng_exit(struct b43_wl *wl)
3178 {
3179 #ifdef CONFIG_B43_HWRNG
3180         if (wl->rng_initialized)
3181                 hwrng_unregister(&wl->rng);
3182 #endif /* CONFIG_B43_HWRNG */
3183 }
3184
3185 static int b43_rng_init(struct b43_wl *wl)
3186 {
3187         int err = 0;
3188
3189 #ifdef CONFIG_B43_HWRNG
3190         snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name),
3191                  "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy));
3192         wl->rng.name = wl->rng_name;
3193         wl->rng.data_read = b43_rng_read;
3194         wl->rng.priv = (unsigned long)wl;
3195         wl->rng_initialized = 1;
3196         err = hwrng_register(&wl->rng);
3197         if (err) {
3198                 wl->rng_initialized = 0;
3199                 b43err(wl, "Failed to register the random "
3200                        "number generator (%d)\n", err);
3201         }
3202 #endif /* CONFIG_B43_HWRNG */
3203
3204         return err;
3205 }
3206
3207 static void b43_tx_work(struct work_struct *work)
3208 {
3209         struct b43_wl *wl = container_of(work, struct b43_wl, tx_work);
3210         struct b43_wldev *dev;
3211         struct sk_buff *skb;
3212         int err = 0;
3213
3214         mutex_lock(&wl->mutex);
3215         dev = wl->current_dev;
3216         if (unlikely(!dev || b43_status(dev) < B43_STAT_STARTED)) {
3217                 mutex_unlock(&wl->mutex);
3218                 return;
3219         }
3220
3221         while (skb_queue_len(&wl->tx_queue)) {
3222                 skb = skb_dequeue(&wl->tx_queue);
3223
3224                 if (b43_using_pio_transfers(dev))
3225                         err = b43_pio_tx(dev, skb);
3226                 else
3227                         err = b43_dma_tx(dev, skb);
3228                 if (unlikely(err))
3229                         dev_kfree_skb(skb); /* Drop it */
3230         }
3231
3232 #if B43_DEBUG
3233         dev->tx_count++;
3234 #endif
3235         mutex_unlock(&wl->mutex);
3236 }
3237
3238 static void b43_op_tx(struct ieee80211_hw *hw,
3239                      struct sk_buff *skb)
3240 {
3241         struct b43_wl *wl = hw_to_b43_wl(hw);
3242
3243         if (unlikely(skb->len < 2 + 2 + 6)) {
3244                 /* Too short, this can't be a valid frame. */
3245                 dev_kfree_skb_any(skb);
3246                 return;
3247         }
3248         B43_WARN_ON(skb_shinfo(skb)->nr_frags);
3249
3250         skb_queue_tail(&wl->tx_queue, skb);
3251         ieee80211_queue_work(wl->hw, &wl->tx_work);
3252 }
3253
3254 static void b43_qos_params_upload(struct b43_wldev *dev,
3255                                   const struct ieee80211_tx_queue_params *p,
3256                                   u16 shm_offset)
3257 {
3258         u16 params[B43_NR_QOSPARAMS];
3259         int bslots, tmp;
3260         unsigned int i;
3261
3262         if (!dev->qos_enabled)
3263                 return;
3264
3265         bslots = b43_read16(dev, B43_MMIO_RNG) & p->cw_min;
3266
3267         memset(&params, 0, sizeof(params));
3268
3269         params[B43_QOSPARAM_TXOP] = p->txop * 32;
3270         params[B43_QOSPARAM_CWMIN] = p->cw_min;
3271         params[B43_QOSPARAM_CWMAX] = p->cw_max;
3272         params[B43_QOSPARAM_CWCUR] = p->cw_min;
3273         params[B43_QOSPARAM_AIFS] = p->aifs;
3274         params[B43_QOSPARAM_BSLOTS] = bslots;
3275         params[B43_QOSPARAM_REGGAP] = bslots + p->aifs;
3276
3277         for (i = 0; i < ARRAY_SIZE(params); i++) {
3278                 if (i == B43_QOSPARAM_STATUS) {
3279                         tmp = b43_shm_read16(dev, B43_SHM_SHARED,
3280                                              shm_offset + (i * 2));
3281                         /* Mark the parameters as updated. */
3282                         tmp |= 0x100;
3283                         b43_shm_write16(dev, B43_SHM_SHARED,
3284                                         shm_offset + (i * 2),
3285                                         tmp);
3286                 } else {
3287                         b43_shm_write16(dev, B43_SHM_SHARED,
3288                                         shm_offset + (i * 2),
3289                                         params[i]);
3290                 }
3291         }
3292 }
3293
3294 /* Mapping of mac80211 queue numbers to b43 QoS SHM offsets. */
3295 static const u16 b43_qos_shm_offsets[] = {
3296         /* [mac80211-queue-nr] = SHM_OFFSET, */
3297         [0] = B43_QOS_VOICE,
3298         [1] = B43_QOS_VIDEO,
3299         [2] = B43_QOS_BESTEFFORT,
3300         [3] = B43_QOS_BACKGROUND,
3301 };
3302
3303 /* Update all QOS parameters in hardware. */
3304 static void b43_qos_upload_all(struct b43_wldev *dev)
3305 {
3306         struct b43_wl *wl = dev->wl;
3307         struct b43_qos_params *params;
3308         unsigned int i;
3309
3310         if (!dev->qos_enabled)
3311                 return;
3312
3313         BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
3314                      ARRAY_SIZE(wl->qos_params));
3315
3316         b43_mac_suspend(dev);
3317         for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
3318                 params = &(wl->qos_params[i]);
3319                 b43_qos_params_upload(dev, &(params->p),
3320                                       b43_qos_shm_offsets[i]);
3321         }
3322         b43_mac_enable(dev);
3323 }
3324
3325 static void b43_qos_clear(struct b43_wl *wl)
3326 {
3327         struct b43_qos_params *params;
3328         unsigned int i;
3329
3330         /* Initialize QoS parameters to sane defaults. */
3331
3332         BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
3333                      ARRAY_SIZE(wl->qos_params));
3334
3335         for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
3336                 params = &(wl->qos_params[i]);
3337
3338                 switch (b43_qos_shm_offsets[i]) {
3339                 case B43_QOS_VOICE:
3340                         params->p.txop = 0;
3341                         params->p.aifs = 2;
3342                         params->p.cw_min = 0x0001;
3343                         params->p.cw_max = 0x0001;
3344                         break;
3345                 case B43_QOS_VIDEO:
3346                         params->p.txop = 0;
3347                         params->p.aifs = 2;
3348                         params->p.cw_min = 0x0001;
3349                         params->p.cw_max = 0x0001;
3350                         break;
3351                 case B43_QOS_BESTEFFORT:
3352                         params->p.txop = 0;
3353                         params->p.aifs = 3;
3354                         params->p.cw_min = 0x0001;
3355                         params->p.cw_max = 0x03FF;
3356                         break;
3357                 case B43_QOS_BACKGROUND:
3358                         params->p.txop = 0;
3359                         params->p.aifs = 7;
3360                         params->p.cw_min = 0x0001;
3361                         params->p.cw_max = 0x03FF;
3362                         break;
3363                 default:
3364                         B43_WARN_ON(1);
3365                 }
3366         }
3367 }
3368
3369 /* Initialize the core's QOS capabilities */
3370 static void b43_qos_init(struct b43_wldev *dev)
3371 {
3372         if (!dev->qos_enabled) {
3373                 /* Disable QOS support. */
3374                 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_EDCF);
3375                 b43_write16(dev, B43_MMIO_IFSCTL,
3376                             b43_read16(dev, B43_MMIO_IFSCTL)
3377                             & ~B43_MMIO_IFSCTL_USE_EDCF);
3378                 b43dbg(dev->wl, "QoS disabled\n");
3379                 return;
3380         }
3381
3382         /* Upload the current QOS parameters. */
3383         b43_qos_upload_all(dev);
3384
3385         /* Enable QOS support. */
3386         b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF);
3387         b43_write16(dev, B43_MMIO_IFSCTL,
3388                     b43_read16(dev, B43_MMIO_IFSCTL)
3389                     | B43_MMIO_IFSCTL_USE_EDCF);
3390         b43dbg(dev->wl, "QoS enabled\n");
3391 }
3392
3393 static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue,
3394                           const struct ieee80211_tx_queue_params *params)
3395 {
3396         struct b43_wl *wl = hw_to_b43_wl(hw);
3397         struct b43_wldev *dev;
3398         unsigned int queue = (unsigned int)_queue;
3399         int err = -ENODEV;
3400
3401         if (queue >= ARRAY_SIZE(wl->qos_params)) {
3402                 /* Queue not available or don't support setting
3403                  * params on this queue. Return success to not
3404                  * confuse mac80211. */
3405                 return 0;
3406         }
3407         BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
3408                      ARRAY_SIZE(wl->qos_params));
3409
3410         mutex_lock(&wl->mutex);
3411         dev = wl->current_dev;
3412         if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED)))
3413                 goto out_unlock;
3414
3415         memcpy(&(wl->qos_params[queue].p), params, sizeof(*params));
3416         b43_mac_suspend(dev);
3417         b43_qos_params_upload(dev, &(wl->qos_params[queue].p),
3418                               b43_qos_shm_offsets[queue]);
3419         b43_mac_enable(dev);
3420         err = 0;
3421
3422 out_unlock:
3423         mutex_unlock(&wl->mutex);
3424
3425         return err;
3426 }
3427
3428 static int b43_op_get_stats(struct ieee80211_hw *hw,
3429                             struct ieee80211_low_level_stats *stats)
3430 {
3431         struct b43_wl *wl = hw_to_b43_wl(hw);
3432
3433         mutex_lock(&wl->mutex);
3434         memcpy(stats, &wl->ieee_stats, sizeof(*stats));
3435         mutex_unlock(&wl->mutex);
3436
3437         return 0;
3438 }
3439
3440 static u64 b43_op_get_tsf(struct ieee80211_hw *hw)
3441 {
3442         struct b43_wl *wl = hw_to_b43_wl(hw);
3443         struct b43_wldev *dev;
3444         u64 tsf;
3445
3446         mutex_lock(&wl->mutex);
3447         dev = wl->current_dev;
3448
3449         if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED))
3450                 b43_tsf_read(dev, &tsf);
3451         else
3452                 tsf = 0;
3453
3454         mutex_unlock(&wl->mutex);
3455
3456         return tsf;
3457 }
3458
3459 static void b43_op_set_tsf(struct ieee80211_hw *hw, u64 tsf)
3460 {
3461         struct b43_wl *wl = hw_to_b43_wl(hw);
3462         struct b43_wldev *dev;
3463
3464         mutex_lock(&wl->mutex);
3465         dev = wl->current_dev;
3466
3467         if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED))
3468                 b43_tsf_write(dev, tsf);
3469
3470         mutex_unlock(&wl->mutex);
3471 }
3472
3473 static void b43_put_phy_into_reset(struct b43_wldev *dev)
3474 {
3475         struct ssb_device *sdev = dev->sdev;
3476         u32 tmslow;
3477
3478         tmslow = ssb_read32(sdev, SSB_TMSLOW);
3479         tmslow &= ~B43_TMSLOW_GMODE;
3480         tmslow |= B43_TMSLOW_PHYRESET;
3481         tmslow |= SSB_TMSLOW_FGC;
3482         ssb_write32(sdev, SSB_TMSLOW, tmslow);
3483         msleep(1);
3484
3485         tmslow = ssb_read32(sdev, SSB_TMSLOW);
3486         tmslow &= ~SSB_TMSLOW_FGC;
3487         tmslow |= B43_TMSLOW_PHYRESET;
3488         ssb_write32(sdev, SSB_TMSLOW, tmslow);
3489         msleep(1);
3490 }
3491
3492 static const char *band_to_string(enum ieee80211_band band)
3493 {
3494         switch (band) {
3495         case IEEE80211_BAND_5GHZ:
3496                 return "5";
3497         case IEEE80211_BAND_2GHZ:
3498                 return "2.4";
3499         default:
3500                 break;
3501         }
3502         B43_WARN_ON(1);
3503         return "";
3504 }
3505
3506 /* Expects wl->mutex locked */
3507 static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan)
3508 {
3509         struct b43_wldev *up_dev = NULL;
3510         struct b43_wldev *down_dev;
3511         struct b43_wldev *d;
3512         int err;
3513         bool uninitialized_var(gmode);
3514         int prev_status;
3515
3516         /* Find a device and PHY which supports the band. */
3517         list_for_each_entry(d, &wl->devlist, list) {
3518                 switch (chan->band) {
3519                 case IEEE80211_BAND_5GHZ:
3520                         if (d->phy.supports_5ghz) {
3521                                 up_dev = d;
3522                                 gmode = 0;
3523                         }
3524                         break;
3525                 case IEEE80211_BAND_2GHZ:
3526                         if (d->phy.supports_2ghz) {
3527                                 up_dev = d;
3528                                 gmode = 1;
3529                         }
3530                         break;
3531                 default:
3532                         B43_WARN_ON(1);
3533                         return -EINVAL;
3534                 }
3535                 if (up_dev)
3536                         break;
3537         }
3538         if (!up_dev) {
3539                 b43err(wl, "Could not find a device for %s-GHz band operation\n",
3540                        band_to_string(chan->band));
3541                 return -ENODEV;
3542         }
3543         if ((up_dev == wl->current_dev) &&
3544             (!!wl->current_dev->phy.gmode == !!gmode)) {
3545                 /* This device is already running. */
3546                 return 0;
3547         }
3548         b43dbg(wl, "Switching to %s-GHz band\n",
3549                band_to_string(chan->band));
3550         down_dev = wl->current_dev;
3551
3552         prev_status = b43_status(down_dev);
3553         /* Shutdown the currently running core. */
3554         if (prev_status >= B43_STAT_STARTED)
3555                 down_dev = b43_wireless_core_stop(down_dev);
3556         if (prev_status >= B43_STAT_INITIALIZED)
3557                 b43_wireless_core_exit(down_dev);
3558
3559         if (down_dev != up_dev) {
3560                 /* We switch to a different core, so we put PHY into
3561                  * RESET on the old core. */
3562                 b43_put_phy_into_reset(down_dev);
3563         }
3564
3565         /* Now start the new core. */
3566         up_dev->phy.gmode = gmode;
3567         if (prev_status >= B43_STAT_INITIALIZED) {
3568                 err = b43_wireless_core_init(up_dev);
3569                 if (err) {
3570                         b43err(wl, "Fatal: Could not initialize device for "
3571                                "selected %s-GHz band\n",
3572                                band_to_string(chan->band));
3573                         goto init_failure;
3574                 }
3575         }
3576         if (prev_status >= B43_STAT_STARTED) {
3577                 err = b43_wireless_core_start(up_dev);
3578                 if (err) {
3579                         b43err(wl, "Fatal: Coult not start device for "
3580                                "selected %s-GHz band\n",
3581                                band_to_string(chan->band));
3582                         b43_wireless_core_exit(up_dev);
3583                         goto init_failure;
3584                 }
3585         }
3586         B43_WARN_ON(b43_status(up_dev) != prev_status);
3587
3588         wl->current_dev = up_dev;
3589
3590         return 0;
3591 init_failure:
3592         /* Whoops, failed to init the new core. No core is operating now. */
3593         wl->current_dev = NULL;
3594         return err;
3595 }
3596
3597 /* Write the short and long frame retry limit values. */
3598 static void b43_set_retry_limits(struct b43_wldev *dev,
3599                                  unsigned int short_retry,
3600                                  unsigned int long_retry)
3601 {
3602         /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
3603          * the chip-internal counter. */
3604         short_retry = min(short_retry, (unsigned int)0xF);
3605         long_retry = min(long_retry, (unsigned int)0xF);
3606
3607         b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT,
3608                         short_retry);
3609         b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT,
3610                         long_retry);
3611 }
3612
3613 static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
3614 {
3615         struct b43_wl *wl = hw_to_b43_wl(hw);
3616         struct b43_wldev *dev;
3617         struct b43_phy *phy;
3618         struct ieee80211_conf *conf = &hw->conf;
3619         int antenna;
3620         int err = 0;
3621
3622         mutex_lock(&wl->mutex);
3623
3624         /* Switch the band (if necessary). This might change the active core. */
3625         err = b43_switch_band(wl, conf->channel);
3626         if (err)
3627                 goto out_unlock_mutex;
3628         dev = wl->current_dev;
3629         phy = &dev->phy;
3630
3631         if (conf_is_ht(conf))
3632                 phy->is_40mhz =
3633                         (conf_is_ht40_minus(conf) || conf_is_ht40_plus(conf));
3634         else
3635                 phy->is_40mhz = false;
3636
3637         b43_mac_suspend(dev);
3638
3639         if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
3640                 b43_set_retry_limits(dev, conf->short_frame_max_tx_count,
3641                                           conf->long_frame_max_tx_count);
3642         changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS;
3643         if (!changed)
3644                 goto out_mac_enable;
3645
3646         /* Switch to the requested channel.
3647          * The firmware takes care of races with the TX handler. */
3648         if (conf->channel->hw_value != phy->channel)
3649                 b43_switch_channel(dev, conf->channel->hw_value);
3650
3651         dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_MONITOR);
3652
3653         /* Adjust the desired TX power level. */
3654         if (conf->power_level != 0) {
3655                 if (conf->power_level != phy->desired_txpower) {
3656                         phy->desired_txpower = conf->power_level;
3657                         b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME |
3658                                                    B43_TXPWR_IGNORE_TSSI);
3659                 }
3660         }
3661
3662         /* Antennas for RX and management frame TX. */
3663         antenna = B43_ANTENNA_DEFAULT;
3664         b43_mgmtframe_txantenna(dev, antenna);
3665         antenna = B43_ANTENNA_DEFAULT;
3666         if (phy->ops->set_rx_antenna)
3667                 phy->ops->set_rx_antenna(dev, antenna);
3668
3669         if (wl->radio_enabled != phy->radio_on) {
3670                 if (wl->radio_enabled) {
3671                         b43_software_rfkill(dev, false);
3672                         b43info(dev->wl, "Radio turned on by software\n");
3673                         if (!dev->radio_hw_enable) {
3674                                 b43info(dev->wl, "The hardware RF-kill button "
3675                                         "still turns the radio physically off. "
3676                                         "Press the button to turn it on.\n");
3677                         }
3678                 } else {
3679                         b43_software_rfkill(dev, true);
3680                         b43info(dev->wl, "Radio turned off by software\n");
3681                 }
3682         }
3683
3684 out_mac_enable:
3685         b43_mac_enable(dev);
3686 out_unlock_mutex:
3687         mutex_unlock(&wl->mutex);
3688
3689         return err;
3690 }
3691
3692 static void b43_update_basic_rates(struct b43_wldev *dev, u32 brates)
3693 {
3694         struct ieee80211_supported_band *sband =
3695                 dev->wl->hw->wiphy->bands[b43_current_band(dev->wl)];
3696         struct ieee80211_rate *rate;
3697         int i;
3698         u16 basic, direct, offset, basic_offset, rateptr;
3699
3700         for (i = 0; i < sband->n_bitrates; i++) {
3701                 rate = &sband->bitrates[i];
3702
3703                 if (b43_is_cck_rate(rate->hw_value)) {
3704                         direct = B43_SHM_SH_CCKDIRECT;
3705                         basic = B43_SHM_SH_CCKBASIC;
3706                         offset = b43_plcp_get_ratecode_cck(rate->hw_value);
3707                         offset &= 0xF;
3708                 } else {
3709                         direct = B43_SHM_SH_OFDMDIRECT;
3710                         basic = B43_SHM_SH_OFDMBASIC;
3711                         offset = b43_plcp_get_ratecode_ofdm(rate->hw_value);
3712                         offset &= 0xF;
3713                 }
3714
3715                 rate = ieee80211_get_response_rate(sband, brates, rate->bitrate);
3716
3717                 if (b43_is_cck_rate(rate->hw_value)) {
3718                         basic_offset = b43_plcp_get_ratecode_cck(rate->hw_value);
3719                         basic_offset &= 0xF;
3720                 } else {
3721                         basic_offset = b43_plcp_get_ratecode_ofdm(rate->hw_value);
3722                         basic_offset &= 0xF;
3723                 }
3724
3725                 /*
3726                  * Get the pointer that we need to point to
3727                  * from the direct map
3728                  */
3729                 rateptr = b43_shm_read16(dev, B43_SHM_SHARED,
3730                                          direct + 2 * basic_offset);
3731                 /* and write it to the basic map */
3732                 b43_shm_write16(dev, B43_SHM_SHARED, basic + 2 * offset,
3733                                 rateptr);
3734         }
3735 }
3736
3737 static void b43_op_bss_info_changed(struct ieee80211_hw *hw,
3738                                     struct ieee80211_vif *vif,
3739                                     struct ieee80211_bss_conf *conf,
3740                                     u32 changed)
3741 {
3742         struct b43_wl *wl = hw_to_b43_wl(hw);
3743         struct b43_wldev *dev;
3744
3745         mutex_lock(&wl->mutex);
3746
3747         dev = wl->current_dev;
3748         if (!dev || b43_status(dev) < B43_STAT_STARTED)
3749                 goto out_unlock_mutex;
3750
3751         B43_WARN_ON(wl->vif != vif);
3752
3753         if (changed & BSS_CHANGED_BSSID) {
3754                 if (conf->bssid)
3755                         memcpy(wl->bssid, conf->bssid, ETH_ALEN);
3756                 else
3757                         memset(wl->bssid, 0, ETH_ALEN);
3758         }
3759
3760         if (b43_status(dev) >= B43_STAT_INITIALIZED) {
3761                 if (changed & BSS_CHANGED_BEACON &&
3762                     (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
3763                      b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) ||
3764                      b43_is_mode(wl, NL80211_IFTYPE_ADHOC)))
3765                         b43_update_templates(wl);
3766
3767                 if (changed & BSS_CHANGED_BSSID)
3768                         b43_write_mac_bssid_templates(dev);
3769         }
3770
3771         b43_mac_suspend(dev);
3772
3773         /* Update templates for AP/mesh mode. */
3774         if (changed & BSS_CHANGED_BEACON_INT &&
3775             (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
3776              b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) ||
3777              b43_is_mode(wl, NL80211_IFTYPE_ADHOC)))
3778                 b43_set_beacon_int(dev, conf->beacon_int);
3779
3780         if (changed & BSS_CHANGED_BASIC_RATES)
3781                 b43_update_basic_rates(dev, conf->basic_rates);
3782
3783         if (changed & BSS_CHANGED_ERP_SLOT) {
3784                 if (conf->use_short_slot)
3785                         b43_short_slot_timing_enable(dev);
3786                 else
3787                         b43_short_slot_timing_disable(dev);
3788         }
3789
3790         b43_mac_enable(dev);
3791 out_unlock_mutex:
3792         mutex_unlock(&wl->mutex);
3793 }
3794
3795 static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
3796                           struct ieee80211_vif *vif, struct ieee80211_sta *sta,
3797                           struct ieee80211_key_conf *key)
3798 {
3799         struct b43_wl *wl = hw_to_b43_wl(hw);
3800         struct b43_wldev *dev;
3801         u8 algorithm;
3802         u8 index;
3803         int err;
3804         static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
3805
3806         if (modparam_nohwcrypt)
3807                 return -ENOSPC; /* User disabled HW-crypto */
3808
3809         mutex_lock(&wl->mutex);
3810
3811         dev = wl->current_dev;
3812         err = -ENODEV;
3813         if (!dev || b43_status(dev) < B43_STAT_INITIALIZED)
3814                 goto out_unlock;
3815
3816         if (dev->fw.pcm_request_failed || !dev->hwcrypto_enabled) {
3817                 /* We don't have firmware for the crypto engine.
3818                  * Must use software-crypto. */
3819                 err = -EOPNOTSUPP;
3820                 goto out_unlock;
3821         }
3822
3823         err = -EINVAL;
3824         switch (key->cipher) {
3825         case WLAN_CIPHER_SUITE_WEP40:
3826                 algorithm = B43_SEC_ALGO_WEP40;
3827                 break;
3828         case WLAN_CIPHER_SUITE_WEP104:
3829                 algorithm = B43_SEC_ALGO_WEP104;
3830                 break;
3831         case WLAN_CIPHER_SUITE_TKIP:
3832                 algorithm = B43_SEC_ALGO_TKIP;
3833                 break;
3834         case WLAN_CIPHER_SUITE_CCMP:
3835                 algorithm = B43_SEC_ALGO_AES;
3836                 break;
3837         default:
3838                 B43_WARN_ON(1);
3839                 goto out_unlock;
3840         }
3841         index = (u8) (key->keyidx);
3842         if (index > 3)
3843                 goto out_unlock;
3844
3845         switch (cmd) {
3846         case SET_KEY:
3847                 if (algorithm == B43_SEC_ALGO_TKIP &&
3848                     (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE) ||
3849                     !modparam_hwtkip)) {
3850                         /* We support only pairwise key */
3851                         err = -EOPNOTSUPP;
3852                         goto out_unlock;
3853                 }
3854
3855                 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
3856                         if (WARN_ON(!sta)) {
3857                                 err = -EOPNOTSUPP;
3858                                 goto out_unlock;
3859                         }
3860                         /* Pairwise key with an assigned MAC address. */
3861                         err = b43_key_write(dev, -1, algorithm,
3862                                             key->key, key->keylen,
3863                                             sta->addr, key);
3864                 } else {
3865                         /* Group key */
3866                         err = b43_key_write(dev, index, algorithm,
3867                                             key->key, key->keylen, NULL, key);
3868                 }
3869                 if (err)
3870                         goto out_unlock;
3871
3872                 if (algorithm == B43_SEC_ALGO_WEP40 ||
3873                     algorithm == B43_SEC_ALGO_WEP104) {
3874                         b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS);
3875                 } else {
3876                         b43_hf_write(dev,
3877                                      b43_hf_read(dev) & ~B43_HF_USEDEFKEYS);
3878                 }
3879                 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
3880                 if (algorithm == B43_SEC_ALGO_TKIP)
3881                         key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
3882                 break;
3883         case DISABLE_KEY: {
3884                 err = b43_key_clear(dev, key->hw_key_idx);
3885                 if (err)
3886                         goto out_unlock;
3887                 break;
3888         }
3889         default:
3890                 B43_WARN_ON(1);
3891         }
3892
3893 out_unlock:
3894         if (!err) {
3895                 b43dbg(wl, "%s hardware based encryption for keyidx: %d, "
3896                        "mac: %pM\n",
3897                        cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
3898                        sta ? sta->addr : bcast_addr);
3899                 b43_dump_keymemory(dev);
3900         }
3901         mutex_unlock(&wl->mutex);
3902
3903         return err;
3904 }
3905
3906 static void b43_op_configure_filter(struct ieee80211_hw *hw,
3907                                     unsigned int changed, unsigned int *fflags,
3908                                     u64 multicast)
3909 {
3910         struct b43_wl *wl = hw_to_b43_wl(hw);
3911         struct b43_wldev *dev;
3912
3913         mutex_lock(&wl->mutex);
3914         dev = wl->current_dev;
3915         if (!dev) {
3916                 *fflags = 0;
3917                 goto out_unlock;
3918         }
3919
3920         *fflags &= FIF_PROMISC_IN_BSS |
3921                   FIF_ALLMULTI |
3922                   FIF_FCSFAIL |
3923                   FIF_PLCPFAIL |
3924                   FIF_CONTROL |
3925                   FIF_OTHER_BSS |
3926                   FIF_BCN_PRBRESP_PROMISC;
3927
3928         changed &= FIF_PROMISC_IN_BSS |
3929                    FIF_ALLMULTI |
3930                    FIF_FCSFAIL |
3931                    FIF_PLCPFAIL |
3932                    FIF_CONTROL |
3933                    FIF_OTHER_BSS |
3934                    FIF_BCN_PRBRESP_PROMISC;
3935
3936         wl->filter_flags = *fflags;
3937
3938         if (changed && b43_status(dev) >= B43_STAT_INITIALIZED)
3939                 b43_adjust_opmode(dev);
3940
3941 out_unlock:
3942         mutex_unlock(&wl->mutex);
3943 }
3944
3945 /* Locking: wl->mutex
3946  * Returns the current dev. This might be different from the passed in dev,
3947  * because the core might be gone away while we unlocked the mutex. */
3948 static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev)
3949 {
3950         struct b43_wl *wl = dev->wl;
3951         struct b43_wldev *orig_dev;
3952         u32 mask;
3953
3954 redo:
3955         if (!dev || b43_status(dev) < B43_STAT_STARTED)
3956                 return dev;
3957
3958         /* Cancel work. Unlock to avoid deadlocks. */
3959         mutex_unlock(&wl->mutex);
3960         cancel_delayed_work_sync(&dev->periodic_work);
3961         cancel_work_sync(&wl->tx_work);
3962         mutex_lock(&wl->mutex);
3963         dev = wl->current_dev;
3964         if (!dev || b43_status(dev) < B43_STAT_STARTED) {
3965                 /* Whoops, aliens ate up the device while we were unlocked. */
3966                 return dev;
3967         }
3968
3969         /* Disable interrupts on the device. */
3970         b43_set_status(dev, B43_STAT_INITIALIZED);
3971         if (b43_bus_host_is_sdio(dev->dev)) {
3972                 /* wl->mutex is locked. That is enough. */
3973                 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0);
3974                 b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */
3975         } else {
3976                 spin_lock_irq(&wl->hardirq_lock);
3977                 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0);
3978                 b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */
3979                 spin_unlock_irq(&wl->hardirq_lock);
3980         }
3981         /* Synchronize and free the interrupt handlers. Unlock to avoid deadlocks. */
3982         orig_dev = dev;
3983         mutex_unlock(&wl->mutex);
3984         if (b43_bus_host_is_sdio(dev->dev)) {
3985                 b43_sdio_free_irq(dev);
3986         } else {
3987                 synchronize_irq(dev->dev->irq);
3988                 free_irq(dev->dev->irq, dev);
3989         }
3990         mutex_lock(&wl->mutex);
3991         dev = wl->current_dev;
3992         if (!dev)
3993                 return dev;
3994         if (dev != orig_dev) {
3995                 if (b43_status(dev) >= B43_STAT_STARTED)
3996                         goto redo;
3997                 return dev;
3998         }
3999         mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
4000         B43_WARN_ON(mask != 0xFFFFFFFF && mask);
4001
4002         /* Drain the TX queue */
4003         while (skb_queue_len(&wl->tx_queue))
4004                 dev_kfree_skb(skb_dequeue(&wl->tx_queue));
4005
4006         b43_mac_suspend(dev);
4007         b43_leds_exit(dev);
4008         b43dbg(wl, "Wireless interface stopped\n");
4009
4010         return dev;
4011 }
4012
4013 /* Locking: wl->mutex */
4014 static int b43_wireless_core_start(struct b43_wldev *dev)
4015 {
4016         int err;
4017
4018         B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED);
4019
4020         drain_txstatus_queue(dev);
4021         if (b43_bus_host_is_sdio(dev->dev)) {
4022                 err = b43_sdio_request_irq(dev, b43_sdio_interrupt_handler);
4023                 if (err) {
4024                         b43err(dev->wl, "Cannot request SDIO IRQ\n");
4025                         goto out;
4026                 }
4027         } else {
4028                 err = request_threaded_irq(dev->dev->irq, b43_interrupt_handler,
4029                                            b43_interrupt_thread_handler,
4030                                            IRQF_SHARED, KBUILD_MODNAME, dev);
4031                 if (err) {
4032                         b43err(dev->wl, "Cannot request IRQ-%d\n",
4033                                dev->dev->irq);
4034                         goto out;
4035                 }
4036         }
4037
4038         /* We are ready to run. */
4039         ieee80211_wake_queues(dev->wl->hw);
4040         b43_set_status(dev, B43_STAT_STARTED);
4041
4042         /* Start data flow (TX/RX). */
4043         b43_mac_enable(dev);
4044         b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask);
4045
4046         /* Start maintenance work */
4047         b43_periodic_tasks_setup(dev);
4048
4049         b43_leds_init(dev);
4050
4051         b43dbg(dev->wl, "Wireless interface started\n");
4052 out:
4053         return err;
4054 }
4055
4056 /* Get PHY and RADIO versioning numbers */
4057 static int b43_phy_versioning(struct b43_wldev *dev)
4058 {
4059         struct b43_phy *phy = &dev->phy;
4060         u32 tmp;
4061         u8 analog_type;
4062         u8 phy_type;
4063         u8 phy_rev;
4064         u16 radio_manuf;
4065         u16 radio_ver;
4066         u16 radio_rev;
4067         int unsupported = 0;
4068
4069         /* Get PHY versioning */
4070         tmp = b43_read16(dev, B43_MMIO_PHY_VER);
4071         analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT;
4072         phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT;
4073         phy_rev = (tmp & B43_PHYVER_VERSION);
4074         switch (phy_type) {
4075         case B43_PHYTYPE_A:
4076                 if (phy_rev >= 4)
4077                         unsupported = 1;
4078                 break;
4079         case B43_PHYTYPE_B:
4080                 if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6
4081                     && phy_rev != 7)
4082                         unsupported = 1;
4083                 break;
4084         case B43_PHYTYPE_G:
4085                 if (phy_rev > 9)
4086                         unsupported = 1;
4087                 break;
4088 #ifdef CONFIG_B43_PHY_N
4089         case B43_PHYTYPE_N:
4090                 if (phy_rev > 9)
4091                         unsupported = 1;
4092                 break;
4093 #endif
4094 #ifdef CONFIG_B43_PHY_LP
4095         case B43_PHYTYPE_LP:
4096                 if (phy_rev > 2)
4097                         unsupported = 1;
4098                 break;
4099 #endif
4100         default:
4101                 unsupported = 1;
4102         };
4103         if (unsupported) {
4104                 b43err(dev->wl, "FOUND UNSUPPORTED PHY "
4105                        "(Analog %u, Type %u, Revision %u)\n",
4106                        analog_type, phy_type, phy_rev);
4107                 return -EOPNOTSUPP;
4108         }
4109         b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n",
4110                analog_type, phy_type, phy_rev);
4111
4112         /* Get RADIO versioning */
4113         if (dev->dev->chip_id == 0x4317) {
4114                 if (dev->dev->chip_rev == 0)
4115                         tmp = 0x3205017F;
4116                 else if (dev->dev->chip_rev == 1)
4117                         tmp = 0x4205017F;
4118                 else
4119                         tmp = 0x5205017F;
4120         } else {
4121                 b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
4122                 tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
4123                 b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
4124                 tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH) << 16;
4125         }
4126         radio_manuf = (tmp & 0x00000FFF);
4127         radio_ver = (tmp & 0x0FFFF000) >> 12;
4128         radio_rev = (tmp & 0xF0000000) >> 28;
4129         if (radio_manuf != 0x17F /* Broadcom */)
4130                 unsupported = 1;
4131         switch (phy_type) {
4132         case B43_PHYTYPE_A:
4133                 if (radio_ver != 0x2060)
4134                         unsupported = 1;
4135                 if (radio_rev != 1)
4136                         unsupported = 1;
4137                 if (radio_manuf != 0x17F)
4138                         unsupported = 1;
4139                 break;
4140         case B43_PHYTYPE_B:
4141                 if ((radio_ver & 0xFFF0) != 0x2050)
4142                         unsupported = 1;
4143                 break;
4144         case B43_PHYTYPE_G:
4145                 if (radio_ver != 0x2050)
4146                         unsupported = 1;
4147                 break;
4148         case B43_PHYTYPE_N:
4149                 if (radio_ver != 0x2055 && radio_ver != 0x2056)
4150                         unsupported = 1;
4151                 break;
4152         case B43_PHYTYPE_LP:
4153                 if (radio_ver != 0x2062 && radio_ver != 0x2063)
4154                         unsupported = 1;
4155                 break;
4156         default:
4157                 B43_WARN_ON(1);
4158         }
4159         if (unsupported) {
4160                 b43err(dev->wl, "FOUND UNSUPPORTED RADIO "
4161                        "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
4162                        radio_manuf, radio_ver, radio_rev);
4163                 return -EOPNOTSUPP;
4164         }
4165         b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n",
4166                radio_manuf, radio_ver, radio_rev);
4167
4168         phy->radio_manuf = radio_manuf;
4169         phy->radio_ver = radio_ver;
4170         phy->radio_rev = radio_rev;
4171
4172         phy->analog = analog_type;
4173         phy->type = phy_type;
4174         phy->rev = phy_rev;
4175
4176         return 0;
4177 }
4178
4179 static void setup_struct_phy_for_init(struct b43_wldev *dev,
4180                                       struct b43_phy *phy)
4181 {
4182         phy->hardware_power_control = !!modparam_hwpctl;
4183         phy->next_txpwr_check_time = jiffies;
4184         /* PHY TX errors counter. */
4185         atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
4186
4187 #if B43_DEBUG
4188         phy->phy_locked = 0;
4189         phy->radio_locked = 0;
4190 #endif
4191 }
4192
4193 static void setup_struct_wldev_for_init(struct b43_wldev *dev)
4194 {
4195         dev->dfq_valid = 0;
4196
4197         /* Assume the radio is enabled. If it's not enabled, the state will
4198          * immediately get fixed on the first periodic work run. */
4199         dev->radio_hw_enable = 1;
4200
4201         /* Stats */
4202         memset(&dev->stats, 0, sizeof(dev->stats));
4203
4204         setup_struct_phy_for_init(dev, &dev->phy);
4205
4206         /* IRQ related flags */
4207         dev->irq_reason = 0;
4208         memset(dev->dma_reason, 0, sizeof(dev->dma_reason));
4209         dev->irq_mask = B43_IRQ_MASKTEMPLATE;
4210         if (b43_modparam_verbose < B43_VERBOSITY_DEBUG)
4211                 dev->irq_mask &= ~B43_IRQ_PHY_TXERR;
4212
4213         dev->mac_suspended = 1;
4214
4215         /* Noise calculation context */
4216         memset(&dev->noisecalc, 0, sizeof(dev->noisecalc));
4217 }
4218
4219 static void b43_bluetooth_coext_enable(struct b43_wldev *dev)
4220 {
4221         struct ssb_sprom *sprom = dev->dev->bus_sprom;
4222         u64 hf;
4223
4224         if (!modparam_btcoex)
4225                 return;
4226         if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST))
4227                 return;
4228         if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode)
4229                 return;
4230
4231         hf = b43_hf_read(dev);
4232         if (sprom->boardflags_lo & B43_BFL_BTCMOD)
4233                 hf |= B43_HF_BTCOEXALT;
4234         else
4235                 hf |= B43_HF_BTCOEX;
4236         b43_hf_write(dev, hf);
4237 }
4238
4239 static void b43_bluetooth_coext_disable(struct b43_wldev *dev)
4240 {
4241         if (!modparam_btcoex)
4242                 return;
4243         //TODO
4244 }
4245
4246 static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev)
4247 {
4248         struct ssb_bus *bus;
4249         u32 tmp;
4250
4251         if (dev->dev->bus_type != B43_BUS_SSB)
4252                 return;
4253
4254         bus = dev->dev->sdev->bus;
4255
4256         if ((bus->chip_id == 0x4311 && bus->chip_rev == 2) ||
4257             (bus->chip_id == 0x4312)) {
4258                 tmp = ssb_read32(dev->dev->sdev, SSB_IMCFGLO);
4259                 tmp &= ~SSB_IMCFGLO_REQTO;
4260                 tmp &= ~SSB_IMCFGLO_SERTO;
4261                 tmp |= 0x3;
4262                 ssb_write32(dev->dev->sdev, SSB_IMCFGLO, tmp);
4263                 ssb_commit_settings(bus);
4264         }
4265 }
4266
4267 static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle)
4268 {
4269         u16 pu_delay;
4270
4271         /* The time value is in microseconds. */
4272         if (dev->phy.type == B43_PHYTYPE_A)
4273                 pu_delay = 3700;
4274         else
4275                 pu_delay = 1050;
4276         if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC) || idle)
4277                 pu_delay = 500;
4278         if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8))
4279                 pu_delay = max(pu_delay, (u16)2400);
4280
4281         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay);
4282 }
4283
4284 /* Set the TSF CFP pre-TargetBeaconTransmissionTime. */
4285 static void b43_set_pretbtt(struct b43_wldev *dev)
4286 {
4287         u16 pretbtt;
4288
4289         /* The time value is in microseconds. */
4290         if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) {
4291                 pretbtt = 2;
4292         } else {
4293                 if (dev->phy.type == B43_PHYTYPE_A)
4294                         pretbtt = 120;
4295                 else
4296                         pretbtt = 250;
4297         }
4298         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt);
4299         b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt);
4300 }
4301
4302 /* Shutdown a wireless core */
4303 /* Locking: wl->mutex */
4304 static void b43_wireless_core_exit(struct b43_wldev *dev)
4305 {
4306         u32 macctl;
4307
4308         B43_WARN_ON(dev && b43_status(dev) > B43_STAT_INITIALIZED);
4309         if (!dev || b43_status(dev) != B43_STAT_INITIALIZED)
4310                 return;
4311
4312         /* Unregister HW RNG driver */
4313         b43_rng_exit(dev->wl);
4314
4315         b43_set_status(dev, B43_STAT_UNINIT);
4316
4317         /* Stop the microcode PSM. */
4318         macctl = b43_read32(dev, B43_MMIO_MACCTL);
4319         macctl &= ~B43_MACCTL_PSM_RUN;
4320         macctl |= B43_MACCTL_PSM_JMP0;
4321         b43_write32(dev, B43_MMIO_MACCTL, macctl);
4322
4323         b43_dma_free(dev);
4324         b43_pio_free(dev);
4325         b43_chip_exit(dev);
4326         dev->phy.ops->switch_analog(dev, 0);
4327         if (dev->wl->current_beacon) {
4328                 dev_kfree_skb_any(dev->wl->current_beacon);
4329                 dev->wl->current_beacon = NULL;
4330         }
4331
4332         b43_device_disable(dev, 0);
4333         b43_bus_may_powerdown(dev);
4334 }
4335
4336 /* Initialize a wireless core */
4337 static int b43_wireless_core_init(struct b43_wldev *dev)
4338 {
4339         struct ssb_bus *bus = dev->sdev->bus;
4340         struct ssb_sprom *sprom = dev->dev->bus_sprom;
4341         struct b43_phy *phy = &dev->phy;
4342         int err;
4343         u64 hf;
4344
4345         B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
4346
4347         err = b43_bus_powerup(dev, 0);
4348         if (err)
4349                 goto out;
4350         if (!b43_device_is_enabled(dev))
4351                 b43_wireless_core_reset(dev, phy->gmode);
4352
4353         /* Reset all data structures. */
4354         setup_struct_wldev_for_init(dev);
4355         phy->ops->prepare_structs(dev);
4356
4357         /* Enable IRQ routing to this device. */
4358         ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->sdev);
4359
4360         b43_imcfglo_timeouts_workaround(dev);
4361         b43_bluetooth_coext_disable(dev);
4362         if (phy->ops->prepare_hardware) {
4363                 err = phy->ops->prepare_hardware(dev);
4364                 if (err)
4365                         goto err_busdown;
4366         }
4367         err = b43_chip_init(dev);
4368         if (err)
4369                 goto err_busdown;
4370         b43_shm_write16(dev, B43_SHM_SHARED,
4371                         B43_SHM_SH_WLCOREREV, dev->dev->core_rev);
4372         hf = b43_hf_read(dev);
4373         if (phy->type == B43_PHYTYPE_G) {
4374                 hf |= B43_HF_SYMW;
4375                 if (phy->rev == 1)
4376                         hf |= B43_HF_GDCW;
4377                 if (sprom->boardflags_lo & B43_BFL_PACTRL)
4378                         hf |= B43_HF_OFDMPABOOST;
4379         }
4380         if (phy->radio_ver == 0x2050) {
4381                 if (phy->radio_rev == 6)
4382                         hf |= B43_HF_4318TSSI;
4383                 if (phy->radio_rev < 6)
4384                         hf |= B43_HF_VCORECALC;
4385         }
4386         if (sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW)
4387                 hf |= B43_HF_DSCRQ; /* Disable slowclock requests from ucode. */
4388 #ifdef CONFIG_SSB_DRIVER_PCICORE
4389         if ((bus->bustype == SSB_BUSTYPE_PCI) &&
4390             (bus->pcicore.dev->id.revision <= 10))
4391                 hf |= B43_HF_PCISCW; /* PCI slow clock workaround. */
4392 #endif
4393         hf &= ~B43_HF_SKCFPUP;
4394         b43_hf_write(dev, hf);
4395
4396         b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT,
4397                              B43_DEFAULT_LONG_RETRY_LIMIT);
4398         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3);
4399         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2);
4400
4401         /* Disable sending probe responses from firmware.
4402          * Setting the MaxTime to one usec will always trigger
4403          * a timeout, so we never send any probe resp.
4404          * A timeout of zero is infinite. */
4405         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1);
4406
4407         b43_rate_memory_init(dev);
4408         b43_set_phytxctl_defaults(dev);
4409
4410         /* Minimum Contention Window */
4411         if (phy->type == B43_PHYTYPE_B)
4412                 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F);
4413         else
4414                 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF);
4415         /* Maximum Contention Window */
4416         b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF);
4417
4418         if (b43_bus_host_is_pcmcia(dev->dev) ||
4419             b43_bus_host_is_sdio(dev->dev) ||
4420             dev->use_pio) {
4421                 dev->__using_pio_transfers = 1;
4422                 err = b43_pio_init(dev);
4423         } else {
4424                 dev->__using_pio_transfers = 0;
4425                 err = b43_dma_init(dev);
4426         }
4427         if (err)
4428                 goto err_chip_exit;
4429         b43_qos_init(dev);
4430         b43_set_synth_pu_delay(dev, 1);
4431         b43_bluetooth_coext_enable(dev);
4432
4433         b43_bus_powerup(dev, !(sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW));
4434         b43_upload_card_macaddress(dev);
4435         b43_security_init(dev);
4436
4437         ieee80211_wake_queues(dev->wl->hw);
4438
4439         b43_set_status(dev, B43_STAT_INITIALIZED);
4440
4441         /* Register HW RNG driver */
4442         b43_rng_init(dev->wl);
4443
4444 out:
4445         return err;
4446
4447 err_chip_exit:
4448         b43_chip_exit(dev);
4449 err_busdown:
4450         b43_bus_may_powerdown(dev);
4451         B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
4452         return err;
4453 }
4454
4455 static int b43_op_add_interface(struct ieee80211_hw *hw,
4456                                 struct ieee80211_vif *vif)
4457 {
4458         struct b43_wl *wl = hw_to_b43_wl(hw);
4459         struct b43_wldev *dev;
4460         int err = -EOPNOTSUPP;
4461
4462         /* TODO: allow WDS/AP devices to coexist */
4463
4464         if (vif->type != NL80211_IFTYPE_AP &&
4465             vif->type != NL80211_IFTYPE_MESH_POINT &&
4466             vif->type != NL80211_IFTYPE_STATION &&
4467             vif->type != NL80211_IFTYPE_WDS &&
4468             vif->type != NL80211_IFTYPE_ADHOC)
4469                 return -EOPNOTSUPP;
4470
4471         mutex_lock(&wl->mutex);
4472         if (wl->operating)
4473                 goto out_mutex_unlock;
4474
4475         b43dbg(wl, "Adding Interface type %d\n", vif->type);
4476
4477         dev = wl->current_dev;
4478         wl->operating = 1;
4479         wl->vif = vif;
4480         wl->if_type = vif->type;
4481         memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
4482
4483         b43_adjust_opmode(dev);
4484         b43_set_pretbtt(dev);
4485         b43_set_synth_pu_delay(dev, 0);
4486         b43_upload_card_macaddress(dev);
4487
4488         err = 0;
4489  out_mutex_unlock:
4490         mutex_unlock(&wl->mutex);
4491
4492         return err;
4493 }
4494
4495 static void b43_op_remove_interface(struct ieee80211_hw *hw,
4496                                     struct ieee80211_vif *vif)
4497 {
4498         struct b43_wl *wl = hw_to_b43_wl(hw);
4499         struct b43_wldev *dev = wl->current_dev;
4500
4501         b43dbg(wl, "Removing Interface type %d\n", vif->type);
4502
4503         mutex_lock(&wl->mutex);
4504
4505         B43_WARN_ON(!wl->operating);
4506         B43_WARN_ON(wl->vif != vif);
4507         wl->vif = NULL;
4508
4509         wl->operating = 0;
4510
4511         b43_adjust_opmode(dev);
4512         memset(wl->mac_addr, 0, ETH_ALEN);
4513         b43_upload_card_macaddress(dev);
4514
4515         mutex_unlock(&wl->mutex);
4516 }
4517
4518 static int b43_op_start(struct ieee80211_hw *hw)
4519 {
4520         struct b43_wl *wl = hw_to_b43_wl(hw);
4521         struct b43_wldev *dev = wl->current_dev;
4522         int did_init = 0;
4523         int err = 0;
4524
4525         /* Kill all old instance specific information to make sure
4526          * the card won't use it in the short timeframe between start
4527          * and mac80211 reconfiguring it. */
4528         memset(wl->bssid, 0, ETH_ALEN);
4529         memset(wl->mac_addr, 0, ETH_ALEN);
4530         wl->filter_flags = 0;
4531         wl->radiotap_enabled = 0;
4532         b43_qos_clear(wl);
4533         wl->beacon0_uploaded = 0;
4534         wl->beacon1_uploaded = 0;
4535         wl->beacon_templates_virgin = 1;
4536         wl->radio_enabled = 1;
4537
4538         mutex_lock(&wl->mutex);
4539
4540         if (b43_status(dev) < B43_STAT_INITIALIZED) {
4541                 err = b43_wireless_core_init(dev);
4542                 if (err)
4543                         goto out_mutex_unlock;
4544                 did_init = 1;
4545         }
4546
4547         if (b43_status(dev) < B43_STAT_STARTED) {
4548                 err = b43_wireless_core_start(dev);
4549                 if (err) {
4550                         if (did_init)
4551                                 b43_wireless_core_exit(dev);
4552                         goto out_mutex_unlock;
4553                 }
4554         }
4555
4556         /* XXX: only do if device doesn't support rfkill irq */
4557         wiphy_rfkill_start_polling(hw->wiphy);
4558
4559  out_mutex_unlock:
4560         mutex_unlock(&wl->mutex);
4561
4562         return err;
4563 }
4564
4565 static void b43_op_stop(struct ieee80211_hw *hw)
4566 {
4567         struct b43_wl *wl = hw_to_b43_wl(hw);
4568         struct b43_wldev *dev = wl->current_dev;
4569
4570         cancel_work_sync(&(wl->beacon_update_trigger));
4571
4572         mutex_lock(&wl->mutex);
4573         if (b43_status(dev) >= B43_STAT_STARTED) {
4574                 dev = b43_wireless_core_stop(dev);
4575                 if (!dev)
4576                         goto out_unlock;
4577         }
4578         b43_wireless_core_exit(dev);
4579         wl->radio_enabled = 0;
4580
4581 out_unlock:
4582         mutex_unlock(&wl->mutex);
4583
4584         cancel_work_sync(&(wl->txpower_adjust_work));
4585 }
4586
4587 static int b43_op_beacon_set_tim(struct ieee80211_hw *hw,
4588                                  struct ieee80211_sta *sta, bool set)
4589 {
4590         struct b43_wl *wl = hw_to_b43_wl(hw);
4591
4592         /* FIXME: add locking */
4593         b43_update_templates(wl);
4594
4595         return 0;
4596 }
4597
4598 static void b43_op_sta_notify(struct ieee80211_hw *hw,
4599                               struct ieee80211_vif *vif,
4600                               enum sta_notify_cmd notify_cmd,
4601                               struct ieee80211_sta *sta)
4602 {
4603         struct b43_wl *wl = hw_to_b43_wl(hw);
4604
4605         B43_WARN_ON(!vif || wl->vif != vif);
4606 }
4607
4608 static void b43_op_sw_scan_start_notifier(struct ieee80211_hw *hw)
4609 {
4610         struct b43_wl *wl = hw_to_b43_wl(hw);
4611         struct b43_wldev *dev;
4612
4613         mutex_lock(&wl->mutex);
4614         dev = wl->current_dev;
4615         if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) {
4616                 /* Disable CFP update during scan on other channels. */
4617                 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_SKCFPUP);
4618         }
4619         mutex_unlock(&wl->mutex);
4620 }
4621
4622 static void b43_op_sw_scan_complete_notifier(struct ieee80211_hw *hw)
4623 {
4624         struct b43_wl *wl = hw_to_b43_wl(hw);
4625         struct b43_wldev *dev;
4626
4627         mutex_lock(&wl->mutex);
4628         dev = wl->current_dev;
4629         if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) {
4630                 /* Re-enable CFP update. */
4631                 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_SKCFPUP);
4632         }
4633         mutex_unlock(&wl->mutex);
4634 }
4635
4636 static int b43_op_get_survey(struct ieee80211_hw *hw, int idx,
4637                              struct survey_info *survey)
4638 {
4639         struct b43_wl *wl = hw_to_b43_wl(hw);
4640         struct b43_wldev *dev = wl->current_dev;
4641         struct ieee80211_conf *conf = &hw->conf;
4642
4643         if (idx != 0)
4644                 return -ENOENT;
4645
4646         survey->channel = conf->channel;
4647         survey->filled = SURVEY_INFO_NOISE_DBM;
4648         survey->noise = dev->stats.link_noise;
4649
4650         return 0;
4651 }
4652
4653 static const struct ieee80211_ops b43_hw_ops = {
4654         .tx                     = b43_op_tx,
4655         .conf_tx                = b43_op_conf_tx,
4656         .add_interface          = b43_op_add_interface,
4657         .remove_interface       = b43_op_remove_interface,
4658         .config                 = b43_op_config,
4659         .bss_info_changed       = b43_op_bss_info_changed,
4660         .configure_filter       = b43_op_configure_filter,
4661         .set_key                = b43_op_set_key,
4662         .update_tkip_key        = b43_op_update_tkip_key,
4663         .get_stats              = b43_op_get_stats,
4664         .get_tsf                = b43_op_get_tsf,
4665         .set_tsf                = b43_op_set_tsf,
4666         .start                  = b43_op_start,
4667         .stop                   = b43_op_stop,
4668         .set_tim                = b43_op_beacon_set_tim,
4669         .sta_notify             = b43_op_sta_notify,
4670         .sw_scan_start          = b43_op_sw_scan_start_notifier,
4671         .sw_scan_complete       = b43_op_sw_scan_complete_notifier,
4672         .get_survey             = b43_op_get_survey,
4673         .rfkill_poll            = b43_rfkill_poll,
4674 };
4675
4676 /* Hard-reset the chip. Do not call this directly.
4677  * Use b43_controller_restart()
4678  */
4679 static void b43_chip_reset(struct work_struct *work)
4680 {
4681         struct b43_wldev *dev =
4682             container_of(work, struct b43_wldev, restart_work);
4683         struct b43_wl *wl = dev->wl;
4684         int err = 0;
4685         int prev_status;
4686
4687         mutex_lock(&wl->mutex);
4688
4689         prev_status = b43_status(dev);
4690         /* Bring the device down... */
4691         if (prev_status >= B43_STAT_STARTED) {
4692                 dev = b43_wireless_core_stop(dev);
4693                 if (!dev) {
4694                         err = -ENODEV;
4695                         goto out;
4696                 }
4697         }
4698         if (prev_status >= B43_STAT_INITIALIZED)
4699                 b43_wireless_core_exit(dev);
4700
4701         /* ...and up again. */
4702         if (prev_status >= B43_STAT_INITIALIZED) {
4703                 err = b43_wireless_core_init(dev);
4704                 if (err)
4705                         goto out;
4706         }
4707         if (prev_status >= B43_STAT_STARTED) {
4708                 err = b43_wireless_core_start(dev);
4709                 if (err) {
4710                         b43_wireless_core_exit(dev);
4711                         goto out;
4712                 }
4713         }
4714 out:
4715         if (err)
4716                 wl->current_dev = NULL; /* Failed to init the dev. */
4717         mutex_unlock(&wl->mutex);
4718         if (err)
4719                 b43err(wl, "Controller restart FAILED\n");
4720         else
4721                 b43info(wl, "Controller restarted\n");
4722 }
4723
4724 static int b43_setup_bands(struct b43_wldev *dev,
4725                            bool have_2ghz_phy, bool have_5ghz_phy)
4726 {
4727         struct ieee80211_hw *hw = dev->wl->hw;
4728
4729         if (have_2ghz_phy)
4730                 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz;
4731         if (dev->phy.type == B43_PHYTYPE_N) {
4732                 if (have_5ghz_phy)
4733                         hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_nphy;
4734         } else {
4735                 if (have_5ghz_phy)
4736                         hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy;
4737         }
4738
4739         dev->phy.supports_2ghz = have_2ghz_phy;
4740         dev->phy.supports_5ghz = have_5ghz_phy;
4741
4742         return 0;
4743 }
4744
4745 static void b43_wireless_core_detach(struct b43_wldev *dev)
4746 {
4747         /* We release firmware that late to not be required to re-request
4748          * is all the time when we reinit the core. */
4749         b43_release_firmware(dev);
4750         b43_phy_free(dev);
4751 }
4752
4753 static int b43_wireless_core_attach(struct b43_wldev *dev)
4754 {
4755         struct b43_wl *wl = dev->wl;
4756         struct ssb_bus *bus = dev->sdev->bus;
4757         struct pci_dev *pdev = (bus->bustype == SSB_BUSTYPE_PCI) ? bus->host_pci : NULL;
4758         int err;
4759         bool have_2ghz_phy = 0, have_5ghz_phy = 0;
4760
4761         /* Do NOT do any device initialization here.
4762          * Do it in wireless_core_init() instead.
4763          * This function is for gathering basic information about the HW, only.
4764          * Also some structs may be set up here. But most likely you want to have
4765          * that in core_init(), too.
4766          */
4767
4768         err = b43_bus_powerup(dev, 0);
4769         if (err) {
4770                 b43err(wl, "Bus powerup failed\n");
4771                 goto out;
4772         }
4773         /* Get the PHY type. */
4774         if (dev->dev->core_rev >= 5) {
4775                 u32 tmshigh;
4776
4777                 tmshigh = ssb_read32(dev->sdev, SSB_TMSHIGH);
4778                 have_2ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY);
4779                 have_5ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_5GHZ_PHY);
4780         } else
4781                 B43_WARN_ON(1);
4782
4783         dev->phy.gmode = have_2ghz_phy;
4784         dev->phy.radio_on = 1;
4785         b43_wireless_core_reset(dev, dev->phy.gmode);
4786
4787         err = b43_phy_versioning(dev);
4788         if (err)
4789                 goto err_powerdown;
4790         /* Check if this device supports multiband. */
4791         if (!pdev ||
4792             (pdev->device != 0x4312 &&
4793              pdev->device != 0x4319 && pdev->device != 0x4324)) {
4794                 /* No multiband support. */
4795                 have_2ghz_phy = 0;
4796                 have_5ghz_phy = 0;
4797                 switch (dev->phy.type) {
4798                 case B43_PHYTYPE_A:
4799                         have_5ghz_phy = 1;
4800                         break;
4801                 case B43_PHYTYPE_LP: //FIXME not always!
4802 #if 0 //FIXME enabling 5GHz causes a NULL pointer dereference
4803                         have_5ghz_phy = 1;
4804 #endif
4805                 case B43_PHYTYPE_G:
4806                 case B43_PHYTYPE_N:
4807                         have_2ghz_phy = 1;
4808                         break;
4809                 default:
4810                         B43_WARN_ON(1);
4811                 }
4812         }
4813         if (dev->phy.type == B43_PHYTYPE_A) {
4814                 /* FIXME */
4815                 b43err(wl, "IEEE 802.11a devices are unsupported\n");
4816                 err = -EOPNOTSUPP;
4817                 goto err_powerdown;
4818         }
4819         if (1 /* disable A-PHY */) {
4820                 /* FIXME: For now we disable the A-PHY on multi-PHY devices. */
4821                 if (dev->phy.type != B43_PHYTYPE_N &&
4822                     dev->phy.type != B43_PHYTYPE_LP) {
4823                         have_2ghz_phy = 1;
4824                         have_5ghz_phy = 0;
4825                 }
4826         }
4827
4828         err = b43_phy_allocate(dev);
4829         if (err)
4830                 goto err_powerdown;
4831
4832         dev->phy.gmode = have_2ghz_phy;
4833         b43_wireless_core_reset(dev, dev->phy.gmode);
4834
4835         err = b43_validate_chipaccess(dev);
4836         if (err)
4837                 goto err_phy_free;
4838         err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy);
4839         if (err)
4840                 goto err_phy_free;
4841
4842         /* Now set some default "current_dev" */
4843         if (!wl->current_dev)
4844                 wl->current_dev = dev;
4845         INIT_WORK(&dev->restart_work, b43_chip_reset);
4846
4847         dev->phy.ops->switch_analog(dev, 0);
4848         b43_device_disable(dev, 0);
4849         b43_bus_may_powerdown(dev);
4850
4851 out:
4852         return err;
4853
4854 err_phy_free:
4855         b43_phy_free(dev);
4856 err_powerdown:
4857         b43_bus_may_powerdown(dev);
4858         return err;
4859 }
4860
4861 static void b43_one_core_detach(struct b43_bus_dev *dev)
4862 {
4863         struct b43_wldev *wldev;
4864         struct b43_wl *wl;
4865
4866         /* Do not cancel ieee80211-workqueue based work here.
4867          * See comment in b43_remove(). */
4868
4869         wldev = ssb_get_drvdata(dev->sdev);
4870         wl = wldev->wl;
4871         b43_debugfs_remove_device(wldev);
4872         b43_wireless_core_detach(wldev);
4873         list_del(&wldev->list);
4874         wl->nr_devs--;
4875         ssb_set_drvdata(dev->sdev, NULL);
4876         kfree(wldev);
4877 }
4878
4879 static int b43_one_core_attach(struct b43_bus_dev *dev, struct b43_wl *wl)
4880 {
4881         struct b43_wldev *wldev;
4882         int err = -ENOMEM;
4883
4884         wldev = kzalloc(sizeof(*wldev), GFP_KERNEL);
4885         if (!wldev)
4886                 goto out;
4887
4888         wldev->use_pio = b43_modparam_pio;
4889         wldev->dev = dev;
4890         wldev->sdev = dev->sdev; /* TODO: Remove when not needed */
4891         wldev->wl = wl;
4892         b43_set_status(wldev, B43_STAT_UNINIT);
4893         wldev->bad_frames_preempt = modparam_bad_frames_preempt;
4894         INIT_LIST_HEAD(&wldev->list);
4895
4896         err = b43_wireless_core_attach(wldev);
4897         if (err)
4898                 goto err_kfree_wldev;
4899
4900         list_add(&wldev->list, &wl->devlist);
4901         wl->nr_devs++;
4902         ssb_set_drvdata(dev->sdev, wldev);
4903         b43_debugfs_add_device(wldev);
4904
4905       out:
4906         return err;
4907
4908       err_kfree_wldev:
4909         kfree(wldev);
4910         return err;
4911 }
4912
4913 #define IS_PDEV(pdev, _vendor, _device, _subvendor, _subdevice)         ( \
4914         (pdev->vendor == PCI_VENDOR_ID_##_vendor) &&                    \
4915         (pdev->device == _device) &&                                    \
4916         (pdev->subsystem_vendor == PCI_VENDOR_ID_##_subvendor) &&       \
4917         (pdev->subsystem_device == _subdevice)                          )
4918
4919 static void b43_sprom_fixup(struct ssb_bus *bus)
4920 {
4921         struct pci_dev *pdev;
4922
4923         /* boardflags workarounds */
4924         if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL &&
4925             bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74)
4926                 bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST;
4927         if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE &&
4928             bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40)
4929                 bus->sprom.boardflags_lo |= B43_BFL_PACTRL;
4930         if (bus->bustype == SSB_BUSTYPE_PCI) {
4931                 pdev = bus->host_pci;
4932                 if (IS_PDEV(pdev, BROADCOM, 0x4318, ASUSTEK, 0x100F) ||
4933                     IS_PDEV(pdev, BROADCOM, 0x4320,    DELL, 0x0003) ||
4934                     IS_PDEV(pdev, BROADCOM, 0x4320,      HP, 0x12f8) ||
4935                     IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0015) ||
4936                     IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0014) ||
4937                     IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0013) ||
4938                     IS_PDEV(pdev, BROADCOM, 0x4320, MOTOROLA, 0x7010))
4939                         bus->sprom.boardflags_lo &= ~B43_BFL_BTCOEXIST;
4940         }
4941 }
4942
4943 static void b43_wireless_exit(struct b43_bus_dev *dev, struct b43_wl *wl)
4944 {
4945         struct ieee80211_hw *hw = wl->hw;
4946
4947         ssb_set_devtypedata(dev->sdev, NULL);
4948         ieee80211_free_hw(hw);
4949 }
4950
4951 static struct b43_wl *b43_wireless_init(struct ssb_device *dev)
4952 {
4953         struct ssb_sprom *sprom = &dev->bus->sprom;
4954         struct ieee80211_hw *hw;
4955         struct b43_wl *wl;
4956
4957         hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops);
4958         if (!hw) {
4959                 b43err(NULL, "Could not allocate ieee80211 device\n");
4960                 return ERR_PTR(-ENOMEM);
4961         }
4962         wl = hw_to_b43_wl(hw);
4963
4964         /* fill hw info */
4965         hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
4966                     IEEE80211_HW_SIGNAL_DBM;
4967
4968         hw->wiphy->interface_modes =
4969                 BIT(NL80211_IFTYPE_AP) |
4970                 BIT(NL80211_IFTYPE_MESH_POINT) |
4971                 BIT(NL80211_IFTYPE_STATION) |
4972                 BIT(NL80211_IFTYPE_WDS) |
4973                 BIT(NL80211_IFTYPE_ADHOC);
4974
4975         hw->queues = modparam_qos ? 4 : 1;
4976         wl->mac80211_initially_registered_queues = hw->queues;
4977         hw->max_rates = 2;
4978         SET_IEEE80211_DEV(hw, dev->dev);
4979         if (is_valid_ether_addr(sprom->et1mac))
4980                 SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
4981         else
4982                 SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac);
4983
4984         /* Initialize struct b43_wl */
4985         wl->hw = hw;
4986         mutex_init(&wl->mutex);
4987         spin_lock_init(&wl->hardirq_lock);
4988         INIT_LIST_HEAD(&wl->devlist);
4989         INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work);
4990         INIT_WORK(&wl->txpower_adjust_work, b43_phy_txpower_adjust_work);
4991         INIT_WORK(&wl->tx_work, b43_tx_work);
4992         skb_queue_head_init(&wl->tx_queue);
4993
4994         b43info(wl, "Broadcom %04X WLAN found (core revision %u)\n",
4995                 dev->bus->chip_id, dev->id.revision);
4996         return wl;
4997 }
4998
4999 #ifdef CONFIG_B43_BCMA
5000 static int b43_bcma_probe(struct bcma_device *core)
5001 {
5002         b43err(NULL, "BCMA is not supported yet!");
5003         return -EOPNOTSUPP;
5004 }
5005
5006 static void b43_bcma_remove(struct bcma_device *core)
5007 {
5008         /* TODO */
5009 }
5010
5011 static struct bcma_driver b43_bcma_driver = {
5012         .name           = KBUILD_MODNAME,
5013         .id_table       = b43_bcma_tbl,
5014         .probe          = b43_bcma_probe,
5015         .remove         = b43_bcma_remove,
5016 };
5017 #endif
5018
5019 static
5020 int b43_ssb_probe(struct ssb_device *sdev, const struct ssb_device_id *id)
5021 {
5022         struct b43_bus_dev *dev;
5023         struct b43_wl *wl;
5024         int err;
5025         int first = 0;
5026
5027         dev = b43_bus_dev_ssb_init(sdev);
5028
5029         wl = ssb_get_devtypedata(sdev);
5030         if (!wl) {
5031                 /* Probing the first core. Must setup common struct b43_wl */
5032                 first = 1;
5033                 b43_sprom_fixup(sdev->bus);
5034                 wl = b43_wireless_init(sdev);
5035                 if (IS_ERR(wl)) {
5036                         err = PTR_ERR(wl);
5037                         goto out;
5038                 }
5039                 ssb_set_devtypedata(sdev, wl);
5040                 B43_WARN_ON(ssb_get_devtypedata(sdev) != wl);
5041         }
5042         err = b43_one_core_attach(dev, wl);
5043         if (err)
5044                 goto err_wireless_exit;
5045
5046         if (first) {
5047                 err = ieee80211_register_hw(wl->hw);
5048                 if (err)
5049                         goto err_one_core_detach;
5050                 b43_leds_register(wl->current_dev);
5051         }
5052
5053       out:
5054         return err;
5055
5056       err_one_core_detach:
5057         b43_one_core_detach(dev);
5058       err_wireless_exit:
5059         if (first)
5060                 b43_wireless_exit(dev, wl);
5061         return err;
5062 }
5063
5064 static void b43_ssb_remove(struct ssb_device *sdev)
5065 {
5066         struct b43_wl *wl = ssb_get_devtypedata(sdev);
5067         struct b43_wldev *wldev = ssb_get_drvdata(sdev);
5068
5069         /* We must cancel any work here before unregistering from ieee80211,
5070          * as the ieee80211 unreg will destroy the workqueue. */
5071         cancel_work_sync(&wldev->restart_work);
5072
5073         B43_WARN_ON(!wl);
5074         if (wl->current_dev == wldev) {
5075                 /* Restore the queues count before unregistering, because firmware detect
5076                  * might have modified it. Restoring is important, so the networking
5077                  * stack can properly free resources. */
5078                 wl->hw->queues = wl->mac80211_initially_registered_queues;
5079                 b43_leds_stop(wldev);
5080                 ieee80211_unregister_hw(wl->hw);
5081         }
5082
5083         b43_one_core_detach(wldev->dev);
5084
5085         if (list_empty(&wl->devlist)) {
5086                 b43_leds_unregister(wl);
5087                 /* Last core on the chip unregistered.
5088                  * We can destroy common struct b43_wl.
5089                  */
5090                 b43_wireless_exit(wldev->dev, wl);
5091         }
5092 }
5093
5094 /* Perform a hardware reset. This can be called from any context. */
5095 void b43_controller_restart(struct b43_wldev *dev, const char *reason)
5096 {
5097         /* Must avoid requeueing, if we are in shutdown. */
5098         if (b43_status(dev) < B43_STAT_INITIALIZED)
5099                 return;
5100         b43info(dev->wl, "Controller RESET (%s) ...\n", reason);
5101         ieee80211_queue_work(dev->wl->hw, &dev->restart_work);
5102 }
5103
5104 static struct ssb_driver b43_ssb_driver = {
5105         .name           = KBUILD_MODNAME,
5106         .id_table       = b43_ssb_tbl,
5107         .probe          = b43_ssb_probe,
5108         .remove         = b43_ssb_remove,
5109 };
5110
5111 static void b43_print_driverinfo(void)
5112 {
5113         const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "",
5114                    *feat_leds = "", *feat_sdio = "";
5115
5116 #ifdef CONFIG_B43_PCI_AUTOSELECT
5117         feat_pci = "P";
5118 #endif
5119 #ifdef CONFIG_B43_PCMCIA
5120         feat_pcmcia = "M";
5121 #endif
5122 #ifdef CONFIG_B43_PHY_N
5123         feat_nphy = "N";
5124 #endif
5125 #ifdef CONFIG_B43_LEDS
5126         feat_leds = "L";
5127 #endif
5128 #ifdef CONFIG_B43_SDIO
5129         feat_sdio = "S";
5130 #endif
5131         printk(KERN_INFO "Broadcom 43xx driver loaded "
5132                "[ Features: %s%s%s%s%s, Firmware-ID: "
5133                B43_SUPPORTED_FIRMWARE_ID " ]\n",
5134                feat_pci, feat_pcmcia, feat_nphy,
5135                feat_leds, feat_sdio);
5136 }
5137
5138 static int __init b43_init(void)
5139 {
5140         int err;
5141
5142         b43_debugfs_init();
5143         err = b43_pcmcia_init();
5144         if (err)
5145                 goto err_dfs_exit;
5146         err = b43_sdio_init();
5147         if (err)
5148                 goto err_pcmcia_exit;
5149 #ifdef CONFIG_B43_BCMA
5150         err = bcma_driver_register(&b43_bcma_driver);
5151         if (err)
5152                 goto err_sdio_exit;
5153 #endif
5154         err = ssb_driver_register(&b43_ssb_driver);
5155         if (err)
5156                 goto err_bcma_driver_exit;
5157         b43_print_driverinfo();
5158
5159         return err;
5160
5161 err_bcma_driver_exit:
5162 #ifdef CONFIG_B43_BCMA
5163         bcma_driver_unregister(&b43_bcma_driver);
5164 err_sdio_exit:
5165 #endif
5166         b43_sdio_exit();
5167 err_pcmcia_exit:
5168         b43_pcmcia_exit();
5169 err_dfs_exit:
5170         b43_debugfs_exit();
5171         return err;
5172 }
5173
5174 static void __exit b43_exit(void)
5175 {
5176         ssb_driver_unregister(&b43_ssb_driver);
5177 #ifdef CONFIG_B43_BCMA
5178         bcma_driver_unregister(&b43_bcma_driver);
5179 #endif
5180         b43_sdio_exit();
5181         b43_pcmcia_exit();
5182         b43_debugfs_exit();
5183 }
5184
5185 module_init(b43_init)
5186 module_exit(b43_exit)