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b43: fix invalid memory access in b43_ssb_remove()
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / wireless / b43 / main.c
blob85d6a1f03a08923c227a3516c4b4d080f7b0e519
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 #ifdef CONFIG_B43_SSB
127 static const struct ssb_device_id b43_ssb_tbl[] = {
128 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5),
129 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6),
130 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7),
131 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9),
132 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10),
133 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11),
134 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 12),
135 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13),
136 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 15),
137 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 16),
138 SSB_DEVTABLE_END
139 };
140 MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl);
141 #endif
142
143 /* Channel and ratetables are shared for all devices.
144 * They can't be const, because ieee80211 puts some precalculated
145 * data in there. This data is the same for all devices, so we don't
146 * get concurrency issues */
147 #define RATETAB_ENT(_rateid, _flags) \
148 { \
149 .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \
150 .hw_value = (_rateid), \
151 .flags = (_flags), \
152 }
153
154 /*
155 * NOTE: When changing this, sync with xmit.c's
156 * b43_plcp_get_bitrate_idx_* functions!
157 */
158 static struct ieee80211_rate __b43_ratetable[] = {
159 RATETAB_ENT(B43_CCK_RATE_1MB, 0),
160 RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE),
161 RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE),
162 RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE),
163 RATETAB_ENT(B43_OFDM_RATE_6MB, 0),
164 RATETAB_ENT(B43_OFDM_RATE_9MB, 0),
165 RATETAB_ENT(B43_OFDM_RATE_12MB, 0),
166 RATETAB_ENT(B43_OFDM_RATE_18MB, 0),
167 RATETAB_ENT(B43_OFDM_RATE_24MB, 0),
168 RATETAB_ENT(B43_OFDM_RATE_36MB, 0),
169 RATETAB_ENT(B43_OFDM_RATE_48MB, 0),
170 RATETAB_ENT(B43_OFDM_RATE_54MB, 0),
171 };
172
173 #define b43_a_ratetable (__b43_ratetable + 4)
174 #define b43_a_ratetable_size 8
175 #define b43_b_ratetable (__b43_ratetable + 0)
176 #define b43_b_ratetable_size 4
177 #define b43_g_ratetable (__b43_ratetable + 0)
178 #define b43_g_ratetable_size 12
179
180 #define CHAN4G(_channel, _freq, _flags) { \
181 .band = IEEE80211_BAND_2GHZ, \
182 .center_freq = (_freq), \
183 .hw_value = (_channel), \
184 .flags = (_flags), \
185 .max_antenna_gain = 0, \
186 .max_power = 30, \
187 }
188 static struct ieee80211_channel b43_2ghz_chantable[] = {
189 CHAN4G(1, 2412, 0),
190 CHAN4G(2, 2417, 0),
191 CHAN4G(3, 2422, 0),
192 CHAN4G(4, 2427, 0),
193 CHAN4G(5, 2432, 0),
194 CHAN4G(6, 2437, 0),
195 CHAN4G(7, 2442, 0),
196 CHAN4G(8, 2447, 0),
197 CHAN4G(9, 2452, 0),
198 CHAN4G(10, 2457, 0),
199 CHAN4G(11, 2462, 0),
200 CHAN4G(12, 2467, 0),
201 CHAN4G(13, 2472, 0),
202 CHAN4G(14, 2484, 0),
203 };
204 #undef CHAN4G
205
206 #define CHAN5G(_channel, _flags) { \
207 .band = IEEE80211_BAND_5GHZ, \
208 .center_freq = 5000 + (5 * (_channel)), \
209 .hw_value = (_channel), \
210 .flags = (_flags), \
211 .max_antenna_gain = 0, \
212 .max_power = 30, \
213 }
214 static struct ieee80211_channel b43_5ghz_nphy_chantable[] = {
215 CHAN5G(32, 0), CHAN5G(34, 0),
216 CHAN5G(36, 0), CHAN5G(38, 0),
217 CHAN5G(40, 0), CHAN5G(42, 0),
218 CHAN5G(44, 0), CHAN5G(46, 0),
219 CHAN5G(48, 0), CHAN5G(50, 0),
220 CHAN5G(52, 0), CHAN5G(54, 0),
221 CHAN5G(56, 0), CHAN5G(58, 0),
222 CHAN5G(60, 0), CHAN5G(62, 0),
223 CHAN5G(64, 0), CHAN5G(66, 0),
224 CHAN5G(68, 0), CHAN5G(70, 0),
225 CHAN5G(72, 0), CHAN5G(74, 0),
226 CHAN5G(76, 0), CHAN5G(78, 0),
227 CHAN5G(80, 0), CHAN5G(82, 0),
228 CHAN5G(84, 0), CHAN5G(86, 0),
229 CHAN5G(88, 0), CHAN5G(90, 0),
230 CHAN5G(92, 0), CHAN5G(94, 0),
231 CHAN5G(96, 0), CHAN5G(98, 0),
232 CHAN5G(100, 0), CHAN5G(102, 0),
233 CHAN5G(104, 0), CHAN5G(106, 0),
234 CHAN5G(108, 0), CHAN5G(110, 0),
235 CHAN5G(112, 0), CHAN5G(114, 0),
236 CHAN5G(116, 0), CHAN5G(118, 0),
237 CHAN5G(120, 0), CHAN5G(122, 0),
238 CHAN5G(124, 0), CHAN5G(126, 0),
239 CHAN5G(128, 0), CHAN5G(130, 0),
240 CHAN5G(132, 0), CHAN5G(134, 0),
241 CHAN5G(136, 0), CHAN5G(138, 0),
242 CHAN5G(140, 0), CHAN5G(142, 0),
243 CHAN5G(144, 0), CHAN5G(145, 0),
244 CHAN5G(146, 0), CHAN5G(147, 0),
245 CHAN5G(148, 0), CHAN5G(149, 0),
246 CHAN5G(150, 0), CHAN5G(151, 0),
247 CHAN5G(152, 0), CHAN5G(153, 0),
248 CHAN5G(154, 0), CHAN5G(155, 0),
249 CHAN5G(156, 0), CHAN5G(157, 0),
250 CHAN5G(158, 0), CHAN5G(159, 0),
251 CHAN5G(160, 0), CHAN5G(161, 0),
252 CHAN5G(162, 0), CHAN5G(163, 0),
253 CHAN5G(164, 0), CHAN5G(165, 0),
254 CHAN5G(166, 0), CHAN5G(168, 0),
255 CHAN5G(170, 0), CHAN5G(172, 0),
256 CHAN5G(174, 0), CHAN5G(176, 0),
257 CHAN5G(178, 0), CHAN5G(180, 0),
258 CHAN5G(182, 0), CHAN5G(184, 0),
259 CHAN5G(186, 0), CHAN5G(188, 0),
260 CHAN5G(190, 0), CHAN5G(192, 0),
261 CHAN5G(194, 0), CHAN5G(196, 0),
262 CHAN5G(198, 0), CHAN5G(200, 0),
263 CHAN5G(202, 0), CHAN5G(204, 0),
264 CHAN5G(206, 0), CHAN5G(208, 0),
265 CHAN5G(210, 0), CHAN5G(212, 0),
266 CHAN5G(214, 0), CHAN5G(216, 0),
267 CHAN5G(218, 0), CHAN5G(220, 0),
268 CHAN5G(222, 0), CHAN5G(224, 0),
269 CHAN5G(226, 0), CHAN5G(228, 0),
270 };
271
272 static struct ieee80211_channel b43_5ghz_aphy_chantable[] = {
273 CHAN5G(34, 0), CHAN5G(36, 0),
274 CHAN5G(38, 0), CHAN5G(40, 0),
275 CHAN5G(42, 0), CHAN5G(44, 0),
276 CHAN5G(46, 0), CHAN5G(48, 0),
277 CHAN5G(52, 0), CHAN5G(56, 0),
278 CHAN5G(60, 0), CHAN5G(64, 0),
279 CHAN5G(100, 0), CHAN5G(104, 0),
280 CHAN5G(108, 0), CHAN5G(112, 0),
281 CHAN5G(116, 0), CHAN5G(120, 0),
282 CHAN5G(124, 0), CHAN5G(128, 0),
283 CHAN5G(132, 0), CHAN5G(136, 0),
284 CHAN5G(140, 0), CHAN5G(149, 0),
285 CHAN5G(153, 0), CHAN5G(157, 0),
286 CHAN5G(161, 0), CHAN5G(165, 0),
287 CHAN5G(184, 0), CHAN5G(188, 0),
288 CHAN5G(192, 0), CHAN5G(196, 0),
289 CHAN5G(200, 0), CHAN5G(204, 0),
290 CHAN5G(208, 0), CHAN5G(212, 0),
291 CHAN5G(216, 0),
292 };
293 #undef CHAN5G
294
295 static struct ieee80211_supported_band b43_band_5GHz_nphy = {
296 .band = IEEE80211_BAND_5GHZ,
297 .channels = b43_5ghz_nphy_chantable,
298 .n_channels = ARRAY_SIZE(b43_5ghz_nphy_chantable),
299 .bitrates = b43_a_ratetable,
300 .n_bitrates = b43_a_ratetable_size,
301 };
302
303 static struct ieee80211_supported_band b43_band_5GHz_aphy = {
304 .band = IEEE80211_BAND_5GHZ,
305 .channels = b43_5ghz_aphy_chantable,
306 .n_channels = ARRAY_SIZE(b43_5ghz_aphy_chantable),
307 .bitrates = b43_a_ratetable,
308 .n_bitrates = b43_a_ratetable_size,
309 };
310
311 static struct ieee80211_supported_band b43_band_2GHz = {
312 .band = IEEE80211_BAND_2GHZ,
313 .channels = b43_2ghz_chantable,
314 .n_channels = ARRAY_SIZE(b43_2ghz_chantable),
315 .bitrates = b43_g_ratetable,
316 .n_bitrates = b43_g_ratetable_size,
317 };
318
319 static void b43_wireless_core_exit(struct b43_wldev *dev);
320 static int b43_wireless_core_init(struct b43_wldev *dev);
321 static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev);
322 static int b43_wireless_core_start(struct b43_wldev *dev);
323
324 static int b43_ratelimit(struct b43_wl *wl)
325 {
326 if (!wl || !wl->current_dev)
327 return 1;
328 if (b43_status(wl->current_dev) < B43_STAT_STARTED)
329 return 1;
330 /* We are up and running.
331 * Ratelimit the messages to avoid DoS over the net. */
332 return net_ratelimit();
333 }
334
335 void b43info(struct b43_wl *wl, const char *fmt, ...)
336 {
337 struct va_format vaf;
338 va_list args;
339
340 if (b43_modparam_verbose < B43_VERBOSITY_INFO)
341 return;
342 if (!b43_ratelimit(wl))
343 return;
344
345 va_start(args, fmt);
346
347 vaf.fmt = fmt;
348 vaf.va = &args;
349
350 printk(KERN_INFO "b43-%s: %pV",
351 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
352
353 va_end(args);
354 }
355
356 void b43err(struct b43_wl *wl, const char *fmt, ...)
357 {
358 struct va_format vaf;
359 va_list args;
360
361 if (b43_modparam_verbose < B43_VERBOSITY_ERROR)
362 return;
363 if (!b43_ratelimit(wl))
364 return;
365
366 va_start(args, fmt);
367
368 vaf.fmt = fmt;
369 vaf.va = &args;
370
371 printk(KERN_ERR "b43-%s ERROR: %pV",
372 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
373
374 va_end(args);
375 }
376
377 void b43warn(struct b43_wl *wl, const char *fmt, ...)
378 {
379 struct va_format vaf;
380 va_list args;
381
382 if (b43_modparam_verbose < B43_VERBOSITY_WARN)
383 return;
384 if (!b43_ratelimit(wl))
385 return;
386
387 va_start(args, fmt);
388
389 vaf.fmt = fmt;
390 vaf.va = &args;
391
392 printk(KERN_WARNING "b43-%s warning: %pV",
393 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
394
395 va_end(args);
396 }
397
398 void b43dbg(struct b43_wl *wl, const char *fmt, ...)
399 {
400 struct va_format vaf;
401 va_list args;
402
403 if (b43_modparam_verbose < B43_VERBOSITY_DEBUG)
404 return;
405
406 va_start(args, fmt);
407
408 vaf.fmt = fmt;
409 vaf.va = &args;
410
411 printk(KERN_DEBUG "b43-%s debug: %pV",
412 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
413
414 va_end(args);
415 }
416
417 static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val)
418 {
419 u32 macctl;
420
421 B43_WARN_ON(offset % 4 != 0);
422
423 macctl = b43_read32(dev, B43_MMIO_MACCTL);
424 if (macctl & B43_MACCTL_BE)
425 val = swab32(val);
426
427 b43_write32(dev, B43_MMIO_RAM_CONTROL, offset);
428 mmiowb();
429 b43_write32(dev, B43_MMIO_RAM_DATA, val);
430 }
431
432 static inline void b43_shm_control_word(struct b43_wldev *dev,
433 u16 routing, u16 offset)
434 {
435 u32 control;
436
437 /* "offset" is the WORD offset. */
438 control = routing;
439 control <<= 16;
440 control |= offset;
441 b43_write32(dev, B43_MMIO_SHM_CONTROL, control);
442 }
443
444 u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset)
445 {
446 u32 ret;
447
448 if (routing == B43_SHM_SHARED) {
449 B43_WARN_ON(offset & 0x0001);
450 if (offset & 0x0003) {
451 /* Unaligned access */
452 b43_shm_control_word(dev, routing, offset >> 2);
453 ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
454 b43_shm_control_word(dev, routing, (offset >> 2) + 1);
455 ret |= ((u32)b43_read16(dev, B43_MMIO_SHM_DATA)) << 16;
456
457 goto out;
458 }
459 offset >>= 2;
460 }
461 b43_shm_control_word(dev, routing, offset);
462 ret = b43_read32(dev, B43_MMIO_SHM_DATA);
463 out:
464 return ret;
465 }
466
467 u16 b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset)
468 {
469 u16 ret;
470
471 if (routing == B43_SHM_SHARED) {
472 B43_WARN_ON(offset & 0x0001);
473 if (offset & 0x0003) {
474 /* Unaligned access */
475 b43_shm_control_word(dev, routing, offset >> 2);
476 ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
477
478 goto out;
479 }
480 offset >>= 2;
481 }
482 b43_shm_control_word(dev, routing, offset);
483 ret = b43_read16(dev, B43_MMIO_SHM_DATA);
484 out:
485 return ret;
486 }
487
488 void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value)
489 {
490 if (routing == B43_SHM_SHARED) {
491 B43_WARN_ON(offset & 0x0001);
492 if (offset & 0x0003) {
493 /* Unaligned access */
494 b43_shm_control_word(dev, routing, offset >> 2);
495 b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED,
496 value & 0xFFFF);
497 b43_shm_control_word(dev, routing, (offset >> 2) + 1);
498 b43_write16(dev, B43_MMIO_SHM_DATA,
499 (value >> 16) & 0xFFFF);
500 return;
501 }
502 offset >>= 2;
503 }
504 b43_shm_control_word(dev, routing, offset);
505 b43_write32(dev, B43_MMIO_SHM_DATA, value);
506 }
507
508 void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value)
509 {
510 if (routing == B43_SHM_SHARED) {
511 B43_WARN_ON(offset & 0x0001);
512 if (offset & 0x0003) {
513 /* Unaligned access */
514 b43_shm_control_word(dev, routing, offset >> 2);
515 b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value);
516 return;
517 }
518 offset >>= 2;
519 }
520 b43_shm_control_word(dev, routing, offset);
521 b43_write16(dev, B43_MMIO_SHM_DATA, value);
522 }
523
524 /* Read HostFlags */
525 u64 b43_hf_read(struct b43_wldev *dev)
526 {
527 u64 ret;
528
529 ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI);
530 ret <<= 16;
531 ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI);
532 ret <<= 16;
533 ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO);
534
535 return ret;
536 }
537
538 /* Write HostFlags */
539 void b43_hf_write(struct b43_wldev *dev, u64 value)
540 {
541 u16 lo, mi, hi;
542
543 lo = (value & 0x00000000FFFFULL);
544 mi = (value & 0x0000FFFF0000ULL) >> 16;
545 hi = (value & 0xFFFF00000000ULL) >> 32;
546 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO, lo);
547 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI, mi);
548 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi);
549 }
550
551 /* Read the firmware capabilities bitmask (Opensource firmware only) */
552 static u16 b43_fwcapa_read(struct b43_wldev *dev)
553 {
554 B43_WARN_ON(!dev->fw.opensource);
555 return b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_FWCAPA);
556 }
557
558 void b43_tsf_read(struct b43_wldev *dev, u64 *tsf)
559 {
560 u32 low, high;
561
562 B43_WARN_ON(dev->dev->core_rev < 3);
563
564 /* The hardware guarantees us an atomic read, if we
565 * read the low register first. */
566 low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW);
567 high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH);
568
569 *tsf = high;
570 *tsf <<= 32;
571 *tsf |= low;
572 }
573
574 static void b43_time_lock(struct b43_wldev *dev)
575 {
576 u32 macctl;
577
578 macctl = b43_read32(dev, B43_MMIO_MACCTL);
579 macctl |= B43_MACCTL_TBTTHOLD;
580 b43_write32(dev, B43_MMIO_MACCTL, macctl);
581 /* Commit the write */
582 b43_read32(dev, B43_MMIO_MACCTL);
583 }
584
585 static void b43_time_unlock(struct b43_wldev *dev)
586 {
587 u32 macctl;
588
589 macctl = b43_read32(dev, B43_MMIO_MACCTL);
590 macctl &= ~B43_MACCTL_TBTTHOLD;
591 b43_write32(dev, B43_MMIO_MACCTL, macctl);
592 /* Commit the write */
593 b43_read32(dev, B43_MMIO_MACCTL);
594 }
595
596 static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf)
597 {
598 u32 low, high;
599
600 B43_WARN_ON(dev->dev->core_rev < 3);
601
602 low = tsf;
603 high = (tsf >> 32);
604 /* The hardware guarantees us an atomic write, if we
605 * write the low register first. */
606 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, low);
607 mmiowb();
608 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, high);
609 mmiowb();
610 }
611
612 void b43_tsf_write(struct b43_wldev *dev, u64 tsf)
613 {
614 b43_time_lock(dev);
615 b43_tsf_write_locked(dev, tsf);
616 b43_time_unlock(dev);
617 }
618
619 static
620 void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 *mac)
621 {
622 static const u8 zero_addr[ETH_ALEN] = { 0 };
623 u16 data;
624
625 if (!mac)
626 mac = zero_addr;
627
628 offset |= 0x0020;
629 b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset);
630
631 data = mac[0];
632 data |= mac[1] << 8;
633 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
634 data = mac[2];
635 data |= mac[3] << 8;
636 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
637 data = mac[4];
638 data |= mac[5] << 8;
639 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
640 }
641
642 static void b43_write_mac_bssid_templates(struct b43_wldev *dev)
643 {
644 const u8 *mac;
645 const u8 *bssid;
646 u8 mac_bssid[ETH_ALEN * 2];
647 int i;
648 u32 tmp;
649
650 bssid = dev->wl->bssid;
651 mac = dev->wl->mac_addr;
652
653 b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid);
654
655 memcpy(mac_bssid, mac, ETH_ALEN);
656 memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN);
657
658 /* Write our MAC address and BSSID to template ram */
659 for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) {
660 tmp = (u32) (mac_bssid[i + 0]);
661 tmp |= (u32) (mac_bssid[i + 1]) << 8;
662 tmp |= (u32) (mac_bssid[i + 2]) << 16;
663 tmp |= (u32) (mac_bssid[i + 3]) << 24;
664 b43_ram_write(dev, 0x20 + i, tmp);
665 }
666 }
667
668 static void b43_upload_card_macaddress(struct b43_wldev *dev)
669 {
670 b43_write_mac_bssid_templates(dev);
671 b43_macfilter_set(dev, B43_MACFILTER_SELF, dev->wl->mac_addr);
672 }
673
674 static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time)
675 {
676 /* slot_time is in usec. */
677 /* This test used to exit for all but a G PHY. */
678 if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ)
679 return;
680 b43_write16(dev, B43_MMIO_IFSSLOT, 510 + slot_time);
681 /* Shared memory location 0x0010 is the slot time and should be
682 * set to slot_time; however, this register is initially 0 and changing
683 * the value adversely affects the transmit rate for BCM4311
684 * devices. Until this behavior is unterstood, delete this step
685 *
686 * b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time);
687 */
688 }
689
690 static void b43_short_slot_timing_enable(struct b43_wldev *dev)
691 {
692 b43_set_slot_time(dev, 9);
693 }
694
695 static void b43_short_slot_timing_disable(struct b43_wldev *dev)
696 {
697 b43_set_slot_time(dev, 20);
698 }
699
700 /* DummyTransmission function, as documented on
701 * http://bcm-v4.sipsolutions.net/802.11/DummyTransmission
702 */
703 void b43_dummy_transmission(struct b43_wldev *dev, bool ofdm, bool pa_on)
704 {
705 struct b43_phy *phy = &dev->phy;
706 unsigned int i, max_loop;
707 u16 value;
708 u32 buffer[5] = {
709 0x00000000,
710 0x00D40000,
711 0x00000000,
712 0x01000000,
713 0x00000000,
714 };
715
716 if (ofdm) {
717 max_loop = 0x1E;
718 buffer[0] = 0x000201CC;
719 } else {
720 max_loop = 0xFA;
721 buffer[0] = 0x000B846E;
722 }
723
724 for (i = 0; i < 5; i++)
725 b43_ram_write(dev, i * 4, buffer[i]);
726
727 b43_write16(dev, 0x0568, 0x0000);
728 if (dev->dev->core_rev < 11)
729 b43_write16(dev, 0x07C0, 0x0000);
730 else
731 b43_write16(dev, 0x07C0, 0x0100);
732 value = (ofdm ? 0x41 : 0x40);
733 b43_write16(dev, 0x050C, value);
734 if ((phy->type == B43_PHYTYPE_N) || (phy->type == B43_PHYTYPE_LP))
735 b43_write16(dev, 0x0514, 0x1A02);
736 b43_write16(dev, 0x0508, 0x0000);
737 b43_write16(dev, 0x050A, 0x0000);
738 b43_write16(dev, 0x054C, 0x0000);
739 b43_write16(dev, 0x056A, 0x0014);
740 b43_write16(dev, 0x0568, 0x0826);
741 b43_write16(dev, 0x0500, 0x0000);
742 if (!pa_on && (phy->type == B43_PHYTYPE_N)) {
743 //SPEC TODO
744 }
745
746 switch (phy->type) {
747 case B43_PHYTYPE_N:
748 b43_write16(dev, 0x0502, 0x00D0);
749 break;
750 case B43_PHYTYPE_LP:
751 b43_write16(dev, 0x0502, 0x0050);
752 break;
753 default:
754 b43_write16(dev, 0x0502, 0x0030);
755 }
756
757 if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
758 b43_radio_write16(dev, 0x0051, 0x0017);
759 for (i = 0x00; i < max_loop; i++) {
760 value = b43_read16(dev, 0x050E);
761 if (value & 0x0080)
762 break;
763 udelay(10);
764 }
765 for (i = 0x00; i < 0x0A; i++) {
766 value = b43_read16(dev, 0x050E);
767 if (value & 0x0400)
768 break;
769 udelay(10);
770 }
771 for (i = 0x00; i < 0x19; i++) {
772 value = b43_read16(dev, 0x0690);
773 if (!(value & 0x0100))
774 break;
775 udelay(10);
776 }
777 if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
778 b43_radio_write16(dev, 0x0051, 0x0037);
779 }
780
781 static void key_write(struct b43_wldev *dev,
782 u8 index, u8 algorithm, const u8 *key)
783 {
784 unsigned int i;
785 u32 offset;
786 u16 value;
787 u16 kidx;
788
789 /* Key index/algo block */
790 kidx = b43_kidx_to_fw(dev, index);
791 value = ((kidx << 4) | algorithm);
792 b43_shm_write16(dev, B43_SHM_SHARED,
793 B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value);
794
795 /* Write the key to the Key Table Pointer offset */
796 offset = dev->ktp + (index * B43_SEC_KEYSIZE);
797 for (i = 0; i < B43_SEC_KEYSIZE; i += 2) {
798 value = key[i];
799 value |= (u16) (key[i + 1]) << 8;
800 b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value);
801 }
802 }
803
804 static void keymac_write(struct b43_wldev *dev, u8 index, const u8 *addr)
805 {
806 u32 addrtmp[2] = { 0, 0, };
807 u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
808
809 if (b43_new_kidx_api(dev))
810 pairwise_keys_start = B43_NR_GROUP_KEYS;
811
812 B43_WARN_ON(index < pairwise_keys_start);
813 /* We have four default TX keys and possibly four default RX keys.
814 * Physical mac 0 is mapped to physical key 4 or 8, depending
815 * on the firmware version.
816 * So we must adjust the index here.
817 */
818 index -= pairwise_keys_start;
819 B43_WARN_ON(index >= B43_NR_PAIRWISE_KEYS);
820
821 if (addr) {
822 addrtmp[0] = addr[0];
823 addrtmp[0] |= ((u32) (addr[1]) << 8);
824 addrtmp[0] |= ((u32) (addr[2]) << 16);
825 addrtmp[0] |= ((u32) (addr[3]) << 24);
826 addrtmp[1] = addr[4];
827 addrtmp[1] |= ((u32) (addr[5]) << 8);
828 }
829
830 /* Receive match transmitter address (RCMTA) mechanism */
831 b43_shm_write32(dev, B43_SHM_RCMTA,
832 (index * 2) + 0, addrtmp[0]);
833 b43_shm_write16(dev, B43_SHM_RCMTA,
834 (index * 2) + 1, addrtmp[1]);
835 }
836
837 /* The ucode will use phase1 key with TEK key to decrypt rx packets.
838 * When a packet is received, the iv32 is checked.
839 * - if it doesn't the packet is returned without modification (and software
840 * decryption can be done). That's what happen when iv16 wrap.
841 * - if it does, the rc4 key is computed, and decryption is tried.
842 * Either it will success and B43_RX_MAC_DEC is returned,
843 * either it fails and B43_RX_MAC_DEC|B43_RX_MAC_DECERR is returned
844 * and the packet is not usable (it got modified by the ucode).
845 * So in order to never have B43_RX_MAC_DECERR, we should provide
846 * a iv32 and phase1key that match. Because we drop packets in case of
847 * B43_RX_MAC_DECERR, if we have a correct iv32 but a wrong phase1key, all
848 * packets will be lost without higher layer knowing (ie no resync possible
849 * until next wrap).
850 *
851 * NOTE : this should support 50 key like RCMTA because
852 * (B43_SHM_SH_KEYIDXBLOCK - B43_SHM_SH_TKIPTSCTTAK)/14 = 50
853 */
854 static void rx_tkip_phase1_write(struct b43_wldev *dev, u8 index, u32 iv32,
855 u16 *phase1key)
856 {
857 unsigned int i;
858 u32 offset;
859 u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
860
861 if (!modparam_hwtkip)
862 return;
863
864 if (b43_new_kidx_api(dev))
865 pairwise_keys_start = B43_NR_GROUP_KEYS;
866
867 B43_WARN_ON(index < pairwise_keys_start);
868 /* We have four default TX keys and possibly four default RX keys.
869 * Physical mac 0 is mapped to physical key 4 or 8, depending
870 * on the firmware version.
871 * So we must adjust the index here.
872 */
873 index -= pairwise_keys_start;
874 B43_WARN_ON(index >= B43_NR_PAIRWISE_KEYS);
875
876 if (b43_debug(dev, B43_DBG_KEYS)) {
877 b43dbg(dev->wl, "rx_tkip_phase1_write : idx 0x%x, iv32 0x%x\n",
878 index, iv32);
879 }
880 /* Write the key to the RX tkip shared mem */
881 offset = B43_SHM_SH_TKIPTSCTTAK + index * (10 + 4);
882 for (i = 0; i < 10; i += 2) {
883 b43_shm_write16(dev, B43_SHM_SHARED, offset + i,
884 phase1key ? phase1key[i / 2] : 0);
885 }
886 b43_shm_write16(dev, B43_SHM_SHARED, offset + i, iv32);
887 b43_shm_write16(dev, B43_SHM_SHARED, offset + i + 2, iv32 >> 16);
888 }
889
890 static void b43_op_update_tkip_key(struct ieee80211_hw *hw,
891 struct ieee80211_vif *vif,
892 struct ieee80211_key_conf *keyconf,
893 struct ieee80211_sta *sta,
894 u32 iv32, u16 *phase1key)
895 {
896 struct b43_wl *wl = hw_to_b43_wl(hw);
897 struct b43_wldev *dev;
898 int index = keyconf->hw_key_idx;
899
900 if (B43_WARN_ON(!modparam_hwtkip))
901 return;
902
903 /* This is only called from the RX path through mac80211, where
904 * our mutex is already locked. */
905 B43_WARN_ON(!mutex_is_locked(&wl->mutex));
906 dev = wl->current_dev;
907 B43_WARN_ON(!dev || b43_status(dev) < B43_STAT_INITIALIZED);
908
909 keymac_write(dev, index, NULL); /* First zero out mac to avoid race */
910
911 rx_tkip_phase1_write(dev, index, iv32, phase1key);
912 /* only pairwise TKIP keys are supported right now */
913 if (WARN_ON(!sta))
914 return;
915 keymac_write(dev, index, sta->addr);
916 }
917
918 static void do_key_write(struct b43_wldev *dev,
919 u8 index, u8 algorithm,
920 const u8 *key, size_t key_len, const u8 *mac_addr)
921 {
922 u8 buf[B43_SEC_KEYSIZE] = { 0, };
923 u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
924
925 if (b43_new_kidx_api(dev))
926 pairwise_keys_start = B43_NR_GROUP_KEYS;
927
928 B43_WARN_ON(index >= ARRAY_SIZE(dev->key));
929 B43_WARN_ON(key_len > B43_SEC_KEYSIZE);
930
931 if (index >= pairwise_keys_start)
932 keymac_write(dev, index, NULL); /* First zero out mac. */
933 if (algorithm == B43_SEC_ALGO_TKIP) {
934 /*
935 * We should provide an initial iv32, phase1key pair.
936 * We could start with iv32=0 and compute the corresponding
937 * phase1key, but this means calling ieee80211_get_tkip_key
938 * with a fake skb (or export other tkip function).
939 * Because we are lazy we hope iv32 won't start with
940 * 0xffffffff and let's b43_op_update_tkip_key provide a
941 * correct pair.
942 */
943 rx_tkip_phase1_write(dev, index, 0xffffffff, (u16*)buf);
944 } else if (index >= pairwise_keys_start) /* clear it */
945 rx_tkip_phase1_write(dev, index, 0, NULL);
946 if (key)
947 memcpy(buf, key, key_len);
948 key_write(dev, index, algorithm, buf);
949 if (index >= pairwise_keys_start)
950 keymac_write(dev, index, mac_addr);
951
952 dev->key[index].algorithm = algorithm;
953 }
954
955 static int b43_key_write(struct b43_wldev *dev,
956 int index, u8 algorithm,
957 const u8 *key, size_t key_len,
958 const u8 *mac_addr,
959 struct ieee80211_key_conf *keyconf)
960 {
961 int i;
962 int pairwise_keys_start;
963
964 /* For ALG_TKIP the key is encoded as a 256-bit (32 byte) data block:
965 * - Temporal Encryption Key (128 bits)
966 * - Temporal Authenticator Tx MIC Key (64 bits)
967 * - Temporal Authenticator Rx MIC Key (64 bits)
968 *
969 * Hardware only store TEK
970 */
971 if (algorithm == B43_SEC_ALGO_TKIP && key_len == 32)
972 key_len = 16;
973 if (key_len > B43_SEC_KEYSIZE)
974 return -EINVAL;
975 for (i = 0; i < ARRAY_SIZE(dev->key); i++) {
976 /* Check that we don't already have this key. */
977 B43_WARN_ON(dev->key[i].keyconf == keyconf);
978 }
979 if (index < 0) {
980 /* Pairwise key. Get an empty slot for the key. */
981 if (b43_new_kidx_api(dev))
982 pairwise_keys_start = B43_NR_GROUP_KEYS;
983 else
984 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
985 for (i = pairwise_keys_start;
986 i < pairwise_keys_start + B43_NR_PAIRWISE_KEYS;
987 i++) {
988 B43_WARN_ON(i >= ARRAY_SIZE(dev->key));
989 if (!dev->key[i].keyconf) {
990 /* found empty */
991 index = i;
992 break;
993 }
994 }
995 if (index < 0) {
996 b43warn(dev->wl, "Out of hardware key memory\n");
997 return -ENOSPC;
998 }
999 } else
1000 B43_WARN_ON(index > 3);
1001
1002 do_key_write(dev, index, algorithm, key, key_len, mac_addr);
1003 if ((index <= 3) && !b43_new_kidx_api(dev)) {
1004 /* Default RX key */
1005 B43_WARN_ON(mac_addr);
1006 do_key_write(dev, index + 4, algorithm, key, key_len, NULL);
1007 }
1008 keyconf->hw_key_idx = index;
1009 dev->key[index].keyconf = keyconf;
1010
1011 return 0;
1012 }
1013
1014 static int b43_key_clear(struct b43_wldev *dev, int index)
1015 {
1016 if (B43_WARN_ON((index < 0) || (index >= ARRAY_SIZE(dev->key))))
1017 return -EINVAL;
1018 do_key_write(dev, index, B43_SEC_ALGO_NONE,
1019 NULL, B43_SEC_KEYSIZE, NULL);
1020 if ((index <= 3) && !b43_new_kidx_api(dev)) {
1021 do_key_write(dev, index + 4, B43_SEC_ALGO_NONE,
1022 NULL, B43_SEC_KEYSIZE, NULL);
1023 }
1024 dev->key[index].keyconf = NULL;
1025
1026 return 0;
1027 }
1028
1029 static void b43_clear_keys(struct b43_wldev *dev)
1030 {
1031 int i, count;
1032
1033 if (b43_new_kidx_api(dev))
1034 count = B43_NR_GROUP_KEYS + B43_NR_PAIRWISE_KEYS;
1035 else
1036 count = B43_NR_GROUP_KEYS * 2 + B43_NR_PAIRWISE_KEYS;
1037 for (i = 0; i < count; i++)
1038 b43_key_clear(dev, i);
1039 }
1040
1041 static void b43_dump_keymemory(struct b43_wldev *dev)
1042 {
1043 unsigned int i, index, count, offset, pairwise_keys_start;
1044 u8 mac[ETH_ALEN];
1045 u16 algo;
1046 u32 rcmta0;
1047 u16 rcmta1;
1048 u64 hf;
1049 struct b43_key *key;
1050
1051 if (!b43_debug(dev, B43_DBG_KEYS))
1052 return;
1053
1054 hf = b43_hf_read(dev);
1055 b43dbg(dev->wl, "Hardware key memory dump: USEDEFKEYS=%u\n",
1056 !!(hf & B43_HF_USEDEFKEYS));
1057 if (b43_new_kidx_api(dev)) {
1058 pairwise_keys_start = B43_NR_GROUP_KEYS;
1059 count = B43_NR_GROUP_KEYS + B43_NR_PAIRWISE_KEYS;
1060 } else {
1061 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
1062 count = B43_NR_GROUP_KEYS * 2 + B43_NR_PAIRWISE_KEYS;
1063 }
1064 for (index = 0; index < count; index++) {
1065 key = &(dev->key[index]);
1066 printk(KERN_DEBUG "Key slot %02u: %s",
1067 index, (key->keyconf == NULL) ? " " : "*");
1068 offset = dev->ktp + (index * B43_SEC_KEYSIZE);
1069 for (i = 0; i < B43_SEC_KEYSIZE; i += 2) {
1070 u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i);
1071 printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF));
1072 }
1073
1074 algo = b43_shm_read16(dev, B43_SHM_SHARED,
1075 B43_SHM_SH_KEYIDXBLOCK + (index * 2));
1076 printk(" Algo: %04X/%02X", algo, key->algorithm);
1077
1078 if (index >= pairwise_keys_start) {
1079 if (key->algorithm == B43_SEC_ALGO_TKIP) {
1080 printk(" TKIP: ");
1081 offset = B43_SHM_SH_TKIPTSCTTAK + (index - 4) * (10 + 4);
1082 for (i = 0; i < 14; i += 2) {
1083 u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i);
1084 printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF));
1085 }
1086 }
1087 rcmta0 = b43_shm_read32(dev, B43_SHM_RCMTA,
1088 ((index - pairwise_keys_start) * 2) + 0);
1089 rcmta1 = b43_shm_read16(dev, B43_SHM_RCMTA,
1090 ((index - pairwise_keys_start) * 2) + 1);
1091 *((__le32 *)(&mac[0])) = cpu_to_le32(rcmta0);
1092 *((__le16 *)(&mac[4])) = cpu_to_le16(rcmta1);
1093 printk(" MAC: %pM", mac);
1094 } else
1095 printk(" DEFAULT KEY");
1096 printk("\n");
1097 }
1098 }
1099
1100 void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags)
1101 {
1102 u32 macctl;
1103 u16 ucstat;
1104 bool hwps;
1105 bool awake;
1106 int i;
1107
1108 B43_WARN_ON((ps_flags & B43_PS_ENABLED) &&
1109 (ps_flags & B43_PS_DISABLED));
1110 B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP));
1111
1112 if (ps_flags & B43_PS_ENABLED) {
1113 hwps = 1;
1114 } else if (ps_flags & B43_PS_DISABLED) {
1115 hwps = 0;
1116 } else {
1117 //TODO: If powersave is not off and FIXME is not set and we are not in adhoc
1118 // and thus is not an AP and we are associated, set bit 25
1119 }
1120 if (ps_flags & B43_PS_AWAKE) {
1121 awake = 1;
1122 } else if (ps_flags & B43_PS_ASLEEP) {
1123 awake = 0;
1124 } else {
1125 //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME,
1126 // or we are associated, or FIXME, or the latest PS-Poll packet sent was
1127 // successful, set bit26
1128 }
1129
1130 /* FIXME: For now we force awake-on and hwps-off */
1131 hwps = 0;
1132 awake = 1;
1133
1134 macctl = b43_read32(dev, B43_MMIO_MACCTL);
1135 if (hwps)
1136 macctl |= B43_MACCTL_HWPS;
1137 else
1138 macctl &= ~B43_MACCTL_HWPS;
1139 if (awake)
1140 macctl |= B43_MACCTL_AWAKE;
1141 else
1142 macctl &= ~B43_MACCTL_AWAKE;
1143 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1144 /* Commit write */
1145 b43_read32(dev, B43_MMIO_MACCTL);
1146 if (awake && dev->dev->core_rev >= 5) {
1147 /* Wait for the microcode to wake up. */
1148 for (i = 0; i < 100; i++) {
1149 ucstat = b43_shm_read16(dev, B43_SHM_SHARED,
1150 B43_SHM_SH_UCODESTAT);
1151 if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP)
1152 break;
1153 udelay(10);
1154 }
1155 }
1156 }
1157
1158 #ifdef CONFIG_B43_BCMA
1159 static void b43_bcma_phy_reset(struct b43_wldev *dev)
1160 {
1161 u32 flags;
1162
1163 /* Put PHY into reset */
1164 flags = bcma_aread32(dev->dev->bdev, BCMA_IOCTL);
1165 flags |= B43_BCMA_IOCTL_PHY_RESET;
1166 flags |= B43_BCMA_IOCTL_PHY_BW_20MHZ; /* Make 20 MHz def */
1167 bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, flags);
1168 udelay(2);
1169
1170 /* Take PHY out of reset */
1171 flags = bcma_aread32(dev->dev->bdev, BCMA_IOCTL);
1172 flags &= ~B43_BCMA_IOCTL_PHY_RESET;
1173 flags |= BCMA_IOCTL_FGC;
1174 bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, flags);
1175 udelay(1);
1176
1177 /* Do not force clock anymore */
1178 flags = bcma_aread32(dev->dev->bdev, BCMA_IOCTL);
1179 flags &= ~BCMA_IOCTL_FGC;
1180 bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, flags);
1181 udelay(1);
1182 }
1183
1184 static void b43_bcma_wireless_core_reset(struct b43_wldev *dev, bool gmode)
1185 {
1186 b43_device_enable(dev, B43_BCMA_IOCTL_PHY_CLKEN);
1187 bcma_core_set_clockmode(dev->dev->bdev, BCMA_CLKMODE_FAST);
1188 b43_bcma_phy_reset(dev);
1189 bcma_core_pll_ctl(dev->dev->bdev, 0x300, 0x3000000, true);
1190 }
1191 #endif
1192
1193 static void b43_ssb_wireless_core_reset(struct b43_wldev *dev, bool gmode)
1194 {
1195 struct ssb_device *sdev = dev->dev->sdev;
1196 u32 tmslow;
1197 u32 flags = 0;
1198
1199 if (gmode)
1200 flags |= B43_TMSLOW_GMODE;
1201 flags |= B43_TMSLOW_PHYCLKEN;
1202 flags |= B43_TMSLOW_PHYRESET;
1203 if (dev->phy.type == B43_PHYTYPE_N)
1204 flags |= B43_TMSLOW_PHY_BANDWIDTH_20MHZ; /* Make 20 MHz def */
1205 b43_device_enable(dev, flags);
1206 msleep(2); /* Wait for the PLL to turn on. */
1207
1208 /* Now take the PHY out of Reset again */
1209 tmslow = ssb_read32(sdev, SSB_TMSLOW);
1210 tmslow |= SSB_TMSLOW_FGC;
1211 tmslow &= ~B43_TMSLOW_PHYRESET;
1212 ssb_write32(sdev, SSB_TMSLOW, tmslow);
1213 ssb_read32(sdev, SSB_TMSLOW); /* flush */
1214 msleep(1);
1215 tmslow &= ~SSB_TMSLOW_FGC;
1216 ssb_write32(sdev, SSB_TMSLOW, tmslow);
1217 ssb_read32(sdev, SSB_TMSLOW); /* flush */
1218 msleep(1);
1219 }
1220
1221 void b43_wireless_core_reset(struct b43_wldev *dev, bool gmode)
1222 {
1223 u32 macctl;
1224
1225 switch (dev->dev->bus_type) {
1226 #ifdef CONFIG_B43_BCMA
1227 case B43_BUS_BCMA:
1228 b43_bcma_wireless_core_reset(dev, gmode);
1229 break;
1230 #endif
1231 #ifdef CONFIG_B43_SSB
1232 case B43_BUS_SSB:
1233 b43_ssb_wireless_core_reset(dev, gmode);
1234 break;
1235 #endif
1236 }
1237
1238 /* Turn Analog ON, but only if we already know the PHY-type.
1239 * This protects against very early setup where we don't know the
1240 * PHY-type, yet. wireless_core_reset will be called once again later,
1241 * when we know the PHY-type. */
1242 if (dev->phy.ops)
1243 dev->phy.ops->switch_analog(dev, 1);
1244
1245 macctl = b43_read32(dev, B43_MMIO_MACCTL);
1246 macctl &= ~B43_MACCTL_GMODE;
1247 if (gmode)
1248 macctl |= B43_MACCTL_GMODE;
1249 macctl |= B43_MACCTL_IHR_ENABLED;
1250 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1251 }
1252
1253 static void handle_irq_transmit_status(struct b43_wldev *dev)
1254 {
1255 u32 v0, v1;
1256 u16 tmp;
1257 struct b43_txstatus stat;
1258
1259 while (1) {
1260 v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1261 if (!(v0 & 0x00000001))
1262 break;
1263 v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1264
1265 stat.cookie = (v0 >> 16);
1266 stat.seq = (v1 & 0x0000FFFF);
1267 stat.phy_stat = ((v1 & 0x00FF0000) >> 16);
1268 tmp = (v0 & 0x0000FFFF);
1269 stat.frame_count = ((tmp & 0xF000) >> 12);
1270 stat.rts_count = ((tmp & 0x0F00) >> 8);
1271 stat.supp_reason = ((tmp & 0x001C) >> 2);
1272 stat.pm_indicated = !!(tmp & 0x0080);
1273 stat.intermediate = !!(tmp & 0x0040);
1274 stat.for_ampdu = !!(tmp & 0x0020);
1275 stat.acked = !!(tmp & 0x0002);
1276
1277 b43_handle_txstatus(dev, &stat);
1278 }
1279 }
1280
1281 static void drain_txstatus_queue(struct b43_wldev *dev)
1282 {
1283 u32 dummy;
1284
1285 if (dev->dev->core_rev < 5)
1286 return;
1287 /* Read all entries from the microcode TXstatus FIFO
1288 * and throw them away.
1289 */
1290 while (1) {
1291 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1292 if (!(dummy & 0x00000001))
1293 break;
1294 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1295 }
1296 }
1297
1298 static u32 b43_jssi_read(struct b43_wldev *dev)
1299 {
1300 u32 val = 0;
1301
1302 val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A);
1303 val <<= 16;
1304 val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088);
1305
1306 return val;
1307 }
1308
1309 static void b43_jssi_write(struct b43_wldev *dev, u32 jssi)
1310 {
1311 b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF));
1312 b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16);
1313 }
1314
1315 static void b43_generate_noise_sample(struct b43_wldev *dev)
1316 {
1317 b43_jssi_write(dev, 0x7F7F7F7F);
1318 b43_write32(dev, B43_MMIO_MACCMD,
1319 b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE);
1320 }
1321
1322 static void b43_calculate_link_quality(struct b43_wldev *dev)
1323 {
1324 /* Top half of Link Quality calculation. */
1325
1326 if (dev->phy.type != B43_PHYTYPE_G)
1327 return;
1328 if (dev->noisecalc.calculation_running)
1329 return;
1330 dev->noisecalc.calculation_running = 1;
1331 dev->noisecalc.nr_samples = 0;
1332
1333 b43_generate_noise_sample(dev);
1334 }
1335
1336 static void handle_irq_noise(struct b43_wldev *dev)
1337 {
1338 struct b43_phy_g *phy = dev->phy.g;
1339 u16 tmp;
1340 u8 noise[4];
1341 u8 i, j;
1342 s32 average;
1343
1344 /* Bottom half of Link Quality calculation. */
1345
1346 if (dev->phy.type != B43_PHYTYPE_G)
1347 return;
1348
1349 /* Possible race condition: It might be possible that the user
1350 * changed to a different channel in the meantime since we
1351 * started the calculation. We ignore that fact, since it's
1352 * not really that much of a problem. The background noise is
1353 * an estimation only anyway. Slightly wrong results will get damped
1354 * by the averaging of the 8 sample rounds. Additionally the
1355 * value is shortlived. So it will be replaced by the next noise
1356 * calculation round soon. */
1357
1358 B43_WARN_ON(!dev->noisecalc.calculation_running);
1359 *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev));
1360 if (noise[0] == 0x7F || noise[1] == 0x7F ||
1361 noise[2] == 0x7F || noise[3] == 0x7F)
1362 goto generate_new;
1363
1364 /* Get the noise samples. */
1365 B43_WARN_ON(dev->noisecalc.nr_samples >= 8);
1366 i = dev->noisecalc.nr_samples;
1367 noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1368 noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1369 noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1370 noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1371 dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]];
1372 dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]];
1373 dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]];
1374 dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]];
1375 dev->noisecalc.nr_samples++;
1376 if (dev->noisecalc.nr_samples == 8) {
1377 /* Calculate the Link Quality by the noise samples. */
1378 average = 0;
1379 for (i = 0; i < 8; i++) {
1380 for (j = 0; j < 4; j++)
1381 average += dev->noisecalc.samples[i][j];
1382 }
1383 average /= (8 * 4);
1384 average *= 125;
1385 average += 64;
1386 average /= 128;
1387 tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C);
1388 tmp = (tmp / 128) & 0x1F;
1389 if (tmp >= 8)
1390 average += 2;
1391 else
1392 average -= 25;
1393 if (tmp == 8)
1394 average -= 72;
1395 else
1396 average -= 48;
1397
1398 dev->stats.link_noise = average;
1399 dev->noisecalc.calculation_running = 0;
1400 return;
1401 }
1402 generate_new:
1403 b43_generate_noise_sample(dev);
1404 }
1405
1406 static void handle_irq_tbtt_indication(struct b43_wldev *dev)
1407 {
1408 if (b43_is_mode(dev->wl, NL80211_IFTYPE_AP)) {
1409 ///TODO: PS TBTT
1410 } else {
1411 if (1 /*FIXME: the last PSpoll frame was sent successfully */ )
1412 b43_power_saving_ctl_bits(dev, 0);
1413 }
1414 if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC))
1415 dev->dfq_valid = 1;
1416 }
1417
1418 static void handle_irq_atim_end(struct b43_wldev *dev)
1419 {
1420 if (dev->dfq_valid) {
1421 b43_write32(dev, B43_MMIO_MACCMD,
1422 b43_read32(dev, B43_MMIO_MACCMD)
1423 | B43_MACCMD_DFQ_VALID);
1424 dev->dfq_valid = 0;
1425 }
1426 }
1427
1428 static void handle_irq_pmq(struct b43_wldev *dev)
1429 {
1430 u32 tmp;
1431
1432 //TODO: AP mode.
1433
1434 while (1) {
1435 tmp = b43_read32(dev, B43_MMIO_PS_STATUS);
1436 if (!(tmp & 0x00000008))
1437 break;
1438 }
1439 /* 16bit write is odd, but correct. */
1440 b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002);
1441 }
1442
1443 static void b43_write_template_common(struct b43_wldev *dev,
1444 const u8 *data, u16 size,
1445 u16 ram_offset,
1446 u16 shm_size_offset, u8 rate)
1447 {
1448 u32 i, tmp;
1449 struct b43_plcp_hdr4 plcp;
1450
1451 plcp.data = 0;
1452 b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
1453 b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data));
1454 ram_offset += sizeof(u32);
1455 /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet.
1456 * So leave the first two bytes of the next write blank.
1457 */
1458 tmp = (u32) (data[0]) << 16;
1459 tmp |= (u32) (data[1]) << 24;
1460 b43_ram_write(dev, ram_offset, tmp);
1461 ram_offset += sizeof(u32);
1462 for (i = 2; i < size; i += sizeof(u32)) {
1463 tmp = (u32) (data[i + 0]);
1464 if (i + 1 < size)
1465 tmp |= (u32) (data[i + 1]) << 8;
1466 if (i + 2 < size)
1467 tmp |= (u32) (data[i + 2]) << 16;
1468 if (i + 3 < size)
1469 tmp |= (u32) (data[i + 3]) << 24;
1470 b43_ram_write(dev, ram_offset + i - 2, tmp);
1471 }
1472 b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset,
1473 size + sizeof(struct b43_plcp_hdr6));
1474 }
1475
1476 /* Check if the use of the antenna that ieee80211 told us to
1477 * use is possible. This will fall back to DEFAULT.
1478 * "antenna_nr" is the antenna identifier we got from ieee80211. */
1479 u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev,
1480 u8 antenna_nr)
1481 {
1482 u8 antenna_mask;
1483
1484 if (antenna_nr == 0) {
1485 /* Zero means "use default antenna". That's always OK. */
1486 return 0;
1487 }
1488
1489 /* Get the mask of available antennas. */
1490 if (dev->phy.gmode)
1491 antenna_mask = dev->dev->bus_sprom->ant_available_bg;
1492 else
1493 antenna_mask = dev->dev->bus_sprom->ant_available_a;
1494
1495 if (!(antenna_mask & (1 << (antenna_nr - 1)))) {
1496 /* This antenna is not available. Fall back to default. */
1497 return 0;
1498 }
1499
1500 return antenna_nr;
1501 }
1502
1503 /* Convert a b43 antenna number value to the PHY TX control value. */
1504 static u16 b43_antenna_to_phyctl(int antenna)
1505 {
1506 switch (antenna) {
1507 case B43_ANTENNA0:
1508 return B43_TXH_PHY_ANT0;
1509 case B43_ANTENNA1:
1510 return B43_TXH_PHY_ANT1;
1511 case B43_ANTENNA2:
1512 return B43_TXH_PHY_ANT2;
1513 case B43_ANTENNA3:
1514 return B43_TXH_PHY_ANT3;
1515 case B43_ANTENNA_AUTO0:
1516 case B43_ANTENNA_AUTO1:
1517 return B43_TXH_PHY_ANT01AUTO;
1518 }
1519 B43_WARN_ON(1);
1520 return 0;
1521 }
1522
1523 static void b43_write_beacon_template(struct b43_wldev *dev,
1524 u16 ram_offset,
1525 u16 shm_size_offset)
1526 {
1527 unsigned int i, len, variable_len;
1528 const struct ieee80211_mgmt *bcn;
1529 const u8 *ie;
1530 bool tim_found = 0;
1531 unsigned int rate;
1532 u16 ctl;
1533 int antenna;
1534 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon);
1535
1536 bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data);
1537 len = min((size_t) dev->wl->current_beacon->len,
1538 0x200 - sizeof(struct b43_plcp_hdr6));
1539 rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value;
1540
1541 b43_write_template_common(dev, (const u8 *)bcn,
1542 len, ram_offset, shm_size_offset, rate);
1543
1544 /* Write the PHY TX control parameters. */
1545 antenna = B43_ANTENNA_DEFAULT;
1546 antenna = b43_antenna_to_phyctl(antenna);
1547 ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL);
1548 /* We can't send beacons with short preamble. Would get PHY errors. */
1549 ctl &= ~B43_TXH_PHY_SHORTPRMBL;
1550 ctl &= ~B43_TXH_PHY_ANT;
1551 ctl &= ~B43_TXH_PHY_ENC;
1552 ctl |= antenna;
1553 if (b43_is_cck_rate(rate))
1554 ctl |= B43_TXH_PHY_ENC_CCK;
1555 else
1556 ctl |= B43_TXH_PHY_ENC_OFDM;
1557 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl);
1558
1559 /* Find the position of the TIM and the DTIM_period value
1560 * and write them to SHM. */
1561 ie = bcn->u.beacon.variable;
1562 variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
1563 for (i = 0; i < variable_len - 2; ) {
1564 uint8_t ie_id, ie_len;
1565
1566 ie_id = ie[i];
1567 ie_len = ie[i + 1];
1568 if (ie_id == 5) {
1569 u16 tim_position;
1570 u16 dtim_period;
1571 /* This is the TIM Information Element */
1572
1573 /* Check whether the ie_len is in the beacon data range. */
1574 if (variable_len < ie_len + 2 + i)
1575 break;
1576 /* A valid TIM is at least 4 bytes long. */
1577 if (ie_len < 4)
1578 break;
1579 tim_found = 1;
1580
1581 tim_position = sizeof(struct b43_plcp_hdr6);
1582 tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable);
1583 tim_position += i;
1584
1585 dtim_period = ie[i + 3];
1586
1587 b43_shm_write16(dev, B43_SHM_SHARED,
1588 B43_SHM_SH_TIMBPOS, tim_position);
1589 b43_shm_write16(dev, B43_SHM_SHARED,
1590 B43_SHM_SH_DTIMPER, dtim_period);
1591 break;
1592 }
1593 i += ie_len + 2;
1594 }
1595 if (!tim_found) {
1596 /*
1597 * If ucode wants to modify TIM do it behind the beacon, this
1598 * will happen, for example, when doing mesh networking.
1599 */
1600 b43_shm_write16(dev, B43_SHM_SHARED,
1601 B43_SHM_SH_TIMBPOS,
1602 len + sizeof(struct b43_plcp_hdr6));
1603 b43_shm_write16(dev, B43_SHM_SHARED,
1604 B43_SHM_SH_DTIMPER, 0);
1605 }
1606 b43dbg(dev->wl, "Updated beacon template at 0x%x\n", ram_offset);
1607 }
1608
1609 static void b43_upload_beacon0(struct b43_wldev *dev)
1610 {
1611 struct b43_wl *wl = dev->wl;
1612
1613 if (wl->beacon0_uploaded)
1614 return;
1615 b43_write_beacon_template(dev, 0x68, 0x18);
1616 wl->beacon0_uploaded = 1;
1617 }
1618
1619 static void b43_upload_beacon1(struct b43_wldev *dev)
1620 {
1621 struct b43_wl *wl = dev->wl;
1622
1623 if (wl->beacon1_uploaded)
1624 return;
1625 b43_write_beacon_template(dev, 0x468, 0x1A);
1626 wl->beacon1_uploaded = 1;
1627 }
1628
1629 static void handle_irq_beacon(struct b43_wldev *dev)
1630 {
1631 struct b43_wl *wl = dev->wl;
1632 u32 cmd, beacon0_valid, beacon1_valid;
1633
1634 if (!b43_is_mode(wl, NL80211_IFTYPE_AP) &&
1635 !b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT))
1636 return;
1637
1638 /* This is the bottom half of the asynchronous beacon update. */
1639
1640 /* Ignore interrupt in the future. */
1641 dev->irq_mask &= ~B43_IRQ_BEACON;
1642
1643 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1644 beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID);
1645 beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID);
1646
1647 /* Schedule interrupt manually, if busy. */
1648 if (beacon0_valid && beacon1_valid) {
1649 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON);
1650 dev->irq_mask |= B43_IRQ_BEACON;
1651 return;
1652 }
1653
1654 if (unlikely(wl->beacon_templates_virgin)) {
1655 /* We never uploaded a beacon before.
1656 * Upload both templates now, but only mark one valid. */
1657 wl->beacon_templates_virgin = 0;
1658 b43_upload_beacon0(dev);
1659 b43_upload_beacon1(dev);
1660 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1661 cmd |= B43_MACCMD_BEACON0_VALID;
1662 b43_write32(dev, B43_MMIO_MACCMD, cmd);
1663 } else {
1664 if (!beacon0_valid) {
1665 b43_upload_beacon0(dev);
1666 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1667 cmd |= B43_MACCMD_BEACON0_VALID;
1668 b43_write32(dev, B43_MMIO_MACCMD, cmd);
1669 } else if (!beacon1_valid) {
1670 b43_upload_beacon1(dev);
1671 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1672 cmd |= B43_MACCMD_BEACON1_VALID;
1673 b43_write32(dev, B43_MMIO_MACCMD, cmd);
1674 }
1675 }
1676 }
1677
1678 static void b43_do_beacon_update_trigger_work(struct b43_wldev *dev)
1679 {
1680 u32 old_irq_mask = dev->irq_mask;
1681
1682 /* update beacon right away or defer to irq */
1683 handle_irq_beacon(dev);
1684 if (old_irq_mask != dev->irq_mask) {
1685 /* The handler updated the IRQ mask. */
1686 B43_WARN_ON(!dev->irq_mask);
1687 if (b43_read32(dev, B43_MMIO_GEN_IRQ_MASK)) {
1688 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask);
1689 } else {
1690 /* Device interrupts are currently disabled. That means
1691 * we just ran the hardirq handler and scheduled the
1692 * IRQ thread. The thread will write the IRQ mask when
1693 * it finished, so there's nothing to do here. Writing
1694 * the mask _here_ would incorrectly re-enable IRQs. */
1695 }
1696 }
1697 }
1698
1699 static void b43_beacon_update_trigger_work(struct work_struct *work)
1700 {
1701 struct b43_wl *wl = container_of(work, struct b43_wl,
1702 beacon_update_trigger);
1703 struct b43_wldev *dev;
1704
1705 mutex_lock(&wl->mutex);
1706 dev = wl->current_dev;
1707 if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) {
1708 if (b43_bus_host_is_sdio(dev->dev)) {
1709 /* wl->mutex is enough. */
1710 b43_do_beacon_update_trigger_work(dev);
1711 mmiowb();
1712 } else {
1713 spin_lock_irq(&wl->hardirq_lock);
1714 b43_do_beacon_update_trigger_work(dev);
1715 mmiowb();
1716 spin_unlock_irq(&wl->hardirq_lock);
1717 }
1718 }
1719 mutex_unlock(&wl->mutex);
1720 }
1721
1722 /* Asynchronously update the packet templates in template RAM.
1723 * Locking: Requires wl->mutex to be locked. */
1724 static void b43_update_templates(struct b43_wl *wl)
1725 {
1726 struct sk_buff *beacon;
1727
1728 /* This is the top half of the ansynchronous beacon update.
1729 * The bottom half is the beacon IRQ.
1730 * Beacon update must be asynchronous to avoid sending an
1731 * invalid beacon. This can happen for example, if the firmware
1732 * transmits a beacon while we are updating it. */
1733
1734 /* We could modify the existing beacon and set the aid bit in
1735 * the TIM field, but that would probably require resizing and
1736 * moving of data within the beacon template.
1737 * Simply request a new beacon and let mac80211 do the hard work. */
1738 beacon = ieee80211_beacon_get(wl->hw, wl->vif);
1739 if (unlikely(!beacon))
1740 return;
1741
1742 if (wl->current_beacon)
1743 dev_kfree_skb_any(wl->current_beacon);
1744 wl->current_beacon = beacon;
1745 wl->beacon0_uploaded = 0;
1746 wl->beacon1_uploaded = 0;
1747 ieee80211_queue_work(wl->hw, &wl->beacon_update_trigger);
1748 }
1749
1750 static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int)
1751 {
1752 b43_time_lock(dev);
1753 if (dev->dev->core_rev >= 3) {
1754 b43_write32(dev, B43_MMIO_TSF_CFP_REP, (beacon_int << 16));
1755 b43_write32(dev, B43_MMIO_TSF_CFP_START, (beacon_int << 10));
1756 } else {
1757 b43_write16(dev, 0x606, (beacon_int >> 6));
1758 b43_write16(dev, 0x610, beacon_int);
1759 }
1760 b43_time_unlock(dev);
1761 b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int);
1762 }
1763
1764 static void b43_handle_firmware_panic(struct b43_wldev *dev)
1765 {
1766 u16 reason;
1767
1768 /* Read the register that contains the reason code for the panic. */
1769 reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_FWPANIC_REASON_REG);
1770 b43err(dev->wl, "Whoopsy, firmware panic! Reason: %u\n", reason);
1771
1772 switch (reason) {
1773 default:
1774 b43dbg(dev->wl, "The panic reason is unknown.\n");
1775 /* fallthrough */
1776 case B43_FWPANIC_DIE:
1777 /* Do not restart the controller or firmware.
1778 * The device is nonfunctional from now on.
1779 * Restarting would result in this panic to trigger again,
1780 * so we avoid that recursion. */
1781 break;
1782 case B43_FWPANIC_RESTART:
1783 b43_controller_restart(dev, "Microcode panic");
1784 break;
1785 }
1786 }
1787
1788 static void handle_irq_ucode_debug(struct b43_wldev *dev)
1789 {
1790 unsigned int i, cnt;
1791 u16 reason, marker_id, marker_line;
1792 __le16 *buf;
1793
1794 /* The proprietary firmware doesn't have this IRQ. */
1795 if (!dev->fw.opensource)
1796 return;
1797
1798 /* Read the register that contains the reason code for this IRQ. */
1799 reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_DEBUGIRQ_REASON_REG);
1800
1801 switch (reason) {
1802 case B43_DEBUGIRQ_PANIC:
1803 b43_handle_firmware_panic(dev);
1804 break;
1805 case B43_DEBUGIRQ_DUMP_SHM:
1806 if (!B43_DEBUG)
1807 break; /* Only with driver debugging enabled. */
1808 buf = kmalloc(4096, GFP_ATOMIC);
1809 if (!buf) {
1810 b43dbg(dev->wl, "SHM-dump: Failed to allocate memory\n");
1811 goto out;
1812 }
1813 for (i = 0; i < 4096; i += 2) {
1814 u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, i);
1815 buf[i / 2] = cpu_to_le16(tmp);
1816 }
1817 b43info(dev->wl, "Shared memory dump:\n");
1818 print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET,
1819 16, 2, buf, 4096, 1);
1820 kfree(buf);
1821 break;
1822 case B43_DEBUGIRQ_DUMP_REGS:
1823 if (!B43_DEBUG)
1824 break; /* Only with driver debugging enabled. */
1825 b43info(dev->wl, "Microcode register dump:\n");
1826 for (i = 0, cnt = 0; i < 64; i++) {
1827 u16 tmp = b43_shm_read16(dev, B43_SHM_SCRATCH, i);
1828 if (cnt == 0)
1829 printk(KERN_INFO);
1830 printk("r%02u: 0x%04X ", i, tmp);
1831 cnt++;
1832 if (cnt == 6) {
1833 printk("\n");
1834 cnt = 0;
1835 }
1836 }
1837 printk("\n");
1838 break;
1839 case B43_DEBUGIRQ_MARKER:
1840 if (!B43_DEBUG)
1841 break; /* Only with driver debugging enabled. */
1842 marker_id = b43_shm_read16(dev, B43_SHM_SCRATCH,
1843 B43_MARKER_ID_REG);
1844 marker_line = b43_shm_read16(dev, B43_SHM_SCRATCH,
1845 B43_MARKER_LINE_REG);
1846 b43info(dev->wl, "The firmware just executed the MARKER(%u) "
1847 "at line number %u\n",
1848 marker_id, marker_line);
1849 break;
1850 default:
1851 b43dbg(dev->wl, "Debug-IRQ triggered for unknown reason: %u\n",
1852 reason);
1853 }
1854 out:
1855 /* Acknowledge the debug-IRQ, so the firmware can continue. */
1856 b43_shm_write16(dev, B43_SHM_SCRATCH,
1857 B43_DEBUGIRQ_REASON_REG, B43_DEBUGIRQ_ACK);
1858 }
1859
1860 static void b43_do_interrupt_thread(struct b43_wldev *dev)
1861 {
1862 u32 reason;
1863 u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
1864 u32 merged_dma_reason = 0;
1865 int i;
1866
1867 if (unlikely(b43_status(dev) != B43_STAT_STARTED))
1868 return;
1869
1870 reason = dev->irq_reason;
1871 for (i = 0; i < ARRAY_SIZE(dma_reason); i++) {
1872 dma_reason[i] = dev->dma_reason[i];
1873 merged_dma_reason |= dma_reason[i];
1874 }
1875
1876 if (unlikely(reason & B43_IRQ_MAC_TXERR))
1877 b43err(dev->wl, "MAC transmission error\n");
1878
1879 if (unlikely(reason & B43_IRQ_PHY_TXERR)) {
1880 b43err(dev->wl, "PHY transmission error\n");
1881 rmb();
1882 if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) {
1883 atomic_set(&dev->phy.txerr_cnt,
1884 B43_PHY_TX_BADNESS_LIMIT);
1885 b43err(dev->wl, "Too many PHY TX errors, "
1886 "restarting the controller\n");
1887 b43_controller_restart(dev, "PHY TX errors");
1888 }
1889 }
1890
1891 if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK |
1892 B43_DMAIRQ_NONFATALMASK))) {
1893 if (merged_dma_reason & B43_DMAIRQ_FATALMASK) {
1894 b43err(dev->wl, "Fatal DMA error: "
1895 "0x%08X, 0x%08X, 0x%08X, "
1896 "0x%08X, 0x%08X, 0x%08X\n",
1897 dma_reason[0], dma_reason[1],
1898 dma_reason[2], dma_reason[3],
1899 dma_reason[4], dma_reason[5]);
1900 b43err(dev->wl, "This device does not support DMA "
1901 "on your system. It will now be switched to PIO.\n");
1902 /* Fall back to PIO transfers if we get fatal DMA errors! */
1903 dev->use_pio = 1;
1904 b43_controller_restart(dev, "DMA error");
1905 return;
1906 }
1907 if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) {
1908 b43err(dev->wl, "DMA error: "
1909 "0x%08X, 0x%08X, 0x%08X, "
1910 "0x%08X, 0x%08X, 0x%08X\n",
1911 dma_reason[0], dma_reason[1],
1912 dma_reason[2], dma_reason[3],
1913 dma_reason[4], dma_reason[5]);
1914 }
1915 }
1916
1917 if (unlikely(reason & B43_IRQ_UCODE_DEBUG))
1918 handle_irq_ucode_debug(dev);
1919 if (reason & B43_IRQ_TBTT_INDI)
1920 handle_irq_tbtt_indication(dev);
1921 if (reason & B43_IRQ_ATIM_END)
1922 handle_irq_atim_end(dev);
1923 if (reason & B43_IRQ_BEACON)
1924 handle_irq_beacon(dev);
1925 if (reason & B43_IRQ_PMQ)
1926 handle_irq_pmq(dev);
1927 if (reason & B43_IRQ_TXFIFO_FLUSH_OK)
1928 ;/* TODO */
1929 if (reason & B43_IRQ_NOISESAMPLE_OK)
1930 handle_irq_noise(dev);
1931
1932 /* Check the DMA reason registers for received data. */
1933 if (dma_reason[0] & B43_DMAIRQ_RX_DONE) {
1934 if (b43_using_pio_transfers(dev))
1935 b43_pio_rx(dev->pio.rx_queue);
1936 else
1937 b43_dma_rx(dev->dma.rx_ring);
1938 }
1939 B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE);
1940 B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE);
1941 B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE);
1942 B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE);
1943 B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE);
1944
1945 if (reason & B43_IRQ_TX_OK)
1946 handle_irq_transmit_status(dev);
1947
1948 /* Re-enable interrupts on the device by restoring the current interrupt mask. */
1949 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask);
1950
1951 #if B43_DEBUG
1952 if (b43_debug(dev, B43_DBG_VERBOSESTATS)) {
1953 dev->irq_count++;
1954 for (i = 0; i < ARRAY_SIZE(dev->irq_bit_count); i++) {
1955 if (reason & (1 << i))
1956 dev->irq_bit_count[i]++;
1957 }
1958 }
1959 #endif
1960 }
1961
1962 /* Interrupt thread handler. Handles device interrupts in thread context. */
1963 static irqreturn_t b43_interrupt_thread_handler(int irq, void *dev_id)
1964 {
1965 struct b43_wldev *dev = dev_id;
1966
1967 mutex_lock(&dev->wl->mutex);
1968 b43_do_interrupt_thread(dev);
1969 mmiowb();
1970 mutex_unlock(&dev->wl->mutex);
1971
1972 return IRQ_HANDLED;
1973 }
1974
1975 static irqreturn_t b43_do_interrupt(struct b43_wldev *dev)
1976 {
1977 u32 reason;
1978
1979 /* This code runs under wl->hardirq_lock, but _only_ on non-SDIO busses.
1980 * On SDIO, this runs under wl->mutex. */
1981
1982 reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
1983 if (reason == 0xffffffff) /* shared IRQ */
1984 return IRQ_NONE;
1985 reason &= dev->irq_mask;
1986 if (!reason)
1987 return IRQ_NONE;
1988
1989 dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON)
1990 & 0x0001DC00;
1991 dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON)
1992 & 0x0000DC00;
1993 dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON)
1994 & 0x0000DC00;
1995 dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON)
1996 & 0x0001DC00;
1997 dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON)
1998 & 0x0000DC00;
1999 /* Unused ring
2000 dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON)
2001 & 0x0000DC00;
2002 */
2003
2004 /* ACK the interrupt. */
2005 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason);
2006 b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]);
2007 b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]);
2008 b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]);
2009 b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]);
2010 b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]);
2011 /* Unused ring
2012 b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]);
2013 */
2014
2015 /* Disable IRQs on the device. The IRQ thread handler will re-enable them. */
2016 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0);
2017 /* Save the reason bitmasks for the IRQ thread handler. */
2018 dev->irq_reason = reason;
2019
2020 return IRQ_WAKE_THREAD;
2021 }
2022
2023 /* Interrupt handler top-half. This runs with interrupts disabled. */
2024 static irqreturn_t b43_interrupt_handler(int irq, void *dev_id)
2025 {
2026 struct b43_wldev *dev = dev_id;
2027 irqreturn_t ret;
2028
2029 if (unlikely(b43_status(dev) < B43_STAT_STARTED))
2030 return IRQ_NONE;
2031
2032 spin_lock(&dev->wl->hardirq_lock);
2033 ret = b43_do_interrupt(dev);
2034 mmiowb();
2035 spin_unlock(&dev->wl->hardirq_lock);
2036
2037 return ret;
2038 }
2039
2040 /* SDIO interrupt handler. This runs in process context. */
2041 static void b43_sdio_interrupt_handler(struct b43_wldev *dev)
2042 {
2043 struct b43_wl *wl = dev->wl;
2044 irqreturn_t ret;
2045
2046 mutex_lock(&wl->mutex);
2047
2048 ret = b43_do_interrupt(dev);
2049 if (ret == IRQ_WAKE_THREAD)
2050 b43_do_interrupt_thread(dev);
2051
2052 mutex_unlock(&wl->mutex);
2053 }
2054
2055 void b43_do_release_fw(struct b43_firmware_file *fw)
2056 {
2057 release_firmware(fw->data);
2058 fw->data = NULL;
2059 fw->filename = NULL;
2060 }
2061
2062 static void b43_release_firmware(struct b43_wldev *dev)
2063 {
2064 b43_do_release_fw(&dev->fw.ucode);
2065 b43_do_release_fw(&dev->fw.pcm);
2066 b43_do_release_fw(&dev->fw.initvals);
2067 b43_do_release_fw(&dev->fw.initvals_band);
2068 }
2069
2070 static void b43_print_fw_helptext(struct b43_wl *wl, bool error)
2071 {
2072 const char text[] =
2073 "You must go to " \
2074 "http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware " \
2075 "and download the correct firmware for this driver version. " \
2076 "Please carefully read all instructions on this website.\n";
2077
2078 if (error)
2079 b43err(wl, text);
2080 else
2081 b43warn(wl, text);
2082 }
2083
2084 int b43_do_request_fw(struct b43_request_fw_context *ctx,
2085 const char *name,
2086 struct b43_firmware_file *fw)
2087 {
2088 const struct firmware *blob;
2089 struct b43_fw_header *hdr;
2090 u32 size;
2091 int err;
2092
2093 if (!name) {
2094 /* Don't fetch anything. Free possibly cached firmware. */
2095 /* FIXME: We should probably keep it anyway, to save some headache
2096 * on suspend/resume with multiband devices. */
2097 b43_do_release_fw(fw);
2098 return 0;
2099 }
2100 if (fw->filename) {
2101 if ((fw->type == ctx->req_type) &&
2102 (strcmp(fw->filename, name) == 0))
2103 return 0; /* Already have this fw. */
2104 /* Free the cached firmware first. */
2105 /* FIXME: We should probably do this later after we successfully
2106 * got the new fw. This could reduce headache with multiband devices.
2107 * We could also redesign this to cache the firmware for all possible
2108 * bands all the time. */
2109 b43_do_release_fw(fw);
2110 }
2111
2112 switch (ctx->req_type) {
2113 case B43_FWTYPE_PROPRIETARY:
2114 snprintf(ctx->fwname, sizeof(ctx->fwname),
2115 "b43%s/%s.fw",
2116 modparam_fwpostfix, name);
2117 break;
2118 case B43_FWTYPE_OPENSOURCE:
2119 snprintf(ctx->fwname, sizeof(ctx->fwname),
2120 "b43-open%s/%s.fw",
2121 modparam_fwpostfix, name);
2122 break;
2123 default:
2124 B43_WARN_ON(1);
2125 return -ENOSYS;
2126 }
2127 err = request_firmware(&blob, ctx->fwname, ctx->dev->dev->dev);
2128 if (err == -ENOENT) {
2129 snprintf(ctx->errors[ctx->req_type],
2130 sizeof(ctx->errors[ctx->req_type]),
2131 "Firmware file \"%s\" not found\n", ctx->fwname);
2132 return err;
2133 } else if (err) {
2134 snprintf(ctx->errors[ctx->req_type],
2135 sizeof(ctx->errors[ctx->req_type]),
2136 "Firmware file \"%s\" request failed (err=%d)\n",
2137 ctx->fwname, err);
2138 return err;
2139 }
2140 if (blob->size < sizeof(struct b43_fw_header))
2141 goto err_format;
2142 hdr = (struct b43_fw_header *)(blob->data);
2143 switch (hdr->type) {
2144 case B43_FW_TYPE_UCODE:
2145 case B43_FW_TYPE_PCM:
2146 size = be32_to_cpu(hdr->size);
2147 if (size != blob->size - sizeof(struct b43_fw_header))
2148 goto err_format;
2149 /* fallthrough */
2150 case B43_FW_TYPE_IV:
2151 if (hdr->ver != 1)
2152 goto err_format;
2153 break;
2154 default:
2155 goto err_format;
2156 }
2157
2158 fw->data = blob;
2159 fw->filename = name;
2160 fw->type = ctx->req_type;
2161
2162 return 0;
2163
2164 err_format:
2165 snprintf(ctx->errors[ctx->req_type],
2166 sizeof(ctx->errors[ctx->req_type]),
2167 "Firmware file \"%s\" format error.\n", ctx->fwname);
2168 release_firmware(blob);
2169
2170 return -EPROTO;
2171 }
2172
2173 static int b43_try_request_fw(struct b43_request_fw_context *ctx)
2174 {
2175 struct b43_wldev *dev = ctx->dev;
2176 struct b43_firmware *fw = &ctx->dev->fw;
2177 const u8 rev = ctx->dev->dev->core_rev;
2178 const char *filename;
2179 u32 tmshigh;
2180 int err;
2181
2182 /* Files for HT and LCN were found by trying one by one */
2183
2184 /* Get microcode */
2185 if ((rev >= 5) && (rev <= 10)) {
2186 filename = "ucode5";
2187 } else if ((rev >= 11) && (rev <= 12)) {
2188 filename = "ucode11";
2189 } else if (rev == 13) {
2190 filename = "ucode13";
2191 } else if (rev == 14) {
2192 filename = "ucode14";
2193 } else if (rev == 15) {
2194 filename = "ucode15";
2195 } else {
2196 switch (dev->phy.type) {
2197 case B43_PHYTYPE_N:
2198 if (rev >= 16)
2199 filename = "ucode16_mimo";
2200 else
2201 goto err_no_ucode;
2202 break;
2203 case B43_PHYTYPE_HT:
2204 if (rev == 29)
2205 filename = "ucode29_mimo";
2206 else
2207 goto err_no_ucode;
2208 break;
2209 case B43_PHYTYPE_LCN:
2210 if (rev == 24)
2211 filename = "ucode24_mimo";
2212 else
2213 goto err_no_ucode;
2214 break;
2215 default:
2216 goto err_no_ucode;
2217 }
2218 }
2219 err = b43_do_request_fw(ctx, filename, &fw->ucode);
2220 if (err)
2221 goto err_load;
2222
2223 /* Get PCM code */
2224 if ((rev >= 5) && (rev <= 10))
2225 filename = "pcm5";
2226 else if (rev >= 11)
2227 filename = NULL;
2228 else
2229 goto err_no_pcm;
2230 fw->pcm_request_failed = 0;
2231 err = b43_do_request_fw(ctx, filename, &fw->pcm);
2232 if (err == -ENOENT) {
2233 /* We did not find a PCM file? Not fatal, but
2234 * core rev <= 10 must do without hwcrypto then. */
2235 fw->pcm_request_failed = 1;
2236 } else if (err)
2237 goto err_load;
2238
2239 /* Get initvals */
2240 switch (dev->phy.type) {
2241 case B43_PHYTYPE_A:
2242 if ((rev >= 5) && (rev <= 10)) {
2243 tmshigh = ssb_read32(dev->dev->sdev, SSB_TMSHIGH);
2244 if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
2245 filename = "a0g1initvals5";
2246 else
2247 filename = "a0g0initvals5";
2248 } else
2249 goto err_no_initvals;
2250 break;
2251 case B43_PHYTYPE_G:
2252 if ((rev >= 5) && (rev <= 10))
2253 filename = "b0g0initvals5";
2254 else if (rev >= 13)
2255 filename = "b0g0initvals13";
2256 else
2257 goto err_no_initvals;
2258 break;
2259 case B43_PHYTYPE_N:
2260 if (rev >= 16)
2261 filename = "n0initvals16";
2262 else if ((rev >= 11) && (rev <= 12))
2263 filename = "n0initvals11";
2264 else
2265 goto err_no_initvals;
2266 break;
2267 case B43_PHYTYPE_LP:
2268 if (rev == 13)
2269 filename = "lp0initvals13";
2270 else if (rev == 14)
2271 filename = "lp0initvals14";
2272 else if (rev >= 15)
2273 filename = "lp0initvals15";
2274 else
2275 goto err_no_initvals;
2276 break;
2277 case B43_PHYTYPE_HT:
2278 if (rev == 29)
2279 filename = "ht0initvals29";
2280 else
2281 goto err_no_initvals;
2282 break;
2283 case B43_PHYTYPE_LCN:
2284 if (rev == 24)
2285 filename = "lcn0initvals24";
2286 else
2287 goto err_no_initvals;
2288 break;
2289 default:
2290 goto err_no_initvals;
2291 }
2292 err = b43_do_request_fw(ctx, filename, &fw->initvals);
2293 if (err)
2294 goto err_load;
2295
2296 /* Get bandswitch initvals */
2297 switch (dev->phy.type) {
2298 case B43_PHYTYPE_A:
2299 if ((rev >= 5) && (rev <= 10)) {
2300 tmshigh = ssb_read32(dev->dev->sdev, SSB_TMSHIGH);
2301 if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
2302 filename = "a0g1bsinitvals5";
2303 else
2304 filename = "a0g0bsinitvals5";
2305 } else if (rev >= 11)
2306 filename = NULL;
2307 else
2308 goto err_no_initvals;
2309 break;
2310 case B43_PHYTYPE_G:
2311 if ((rev >= 5) && (rev <= 10))
2312 filename = "b0g0bsinitvals5";
2313 else if (rev >= 11)
2314 filename = NULL;
2315 else
2316 goto err_no_initvals;
2317 break;
2318 case B43_PHYTYPE_N:
2319 if (rev >= 16)
2320 filename = "n0bsinitvals16";
2321 else if ((rev >= 11) && (rev <= 12))
2322 filename = "n0bsinitvals11";
2323 else
2324 goto err_no_initvals;
2325 break;
2326 case B43_PHYTYPE_LP:
2327 if (rev == 13)
2328 filename = "lp0bsinitvals13";
2329 else if (rev == 14)
2330 filename = "lp0bsinitvals14";
2331 else if (rev >= 15)
2332 filename = "lp0bsinitvals15";
2333 else
2334 goto err_no_initvals;
2335 break;
2336 case B43_PHYTYPE_HT:
2337 if (rev == 29)
2338 filename = "ht0bsinitvals29";
2339 else
2340 goto err_no_initvals;
2341 break;
2342 case B43_PHYTYPE_LCN:
2343 if (rev == 24)
2344 filename = "lcn0bsinitvals24";
2345 else
2346 goto err_no_initvals;
2347 break;
2348 default:
2349 goto err_no_initvals;
2350 }
2351 err = b43_do_request_fw(ctx, filename, &fw->initvals_band);
2352 if (err)
2353 goto err_load;
2354
2355 return 0;
2356
2357 err_no_ucode:
2358 err = ctx->fatal_failure = -EOPNOTSUPP;
2359 b43err(dev->wl, "The driver does not know which firmware (ucode) "
2360 "is required for your device (wl-core rev %u)\n", rev);
2361 goto error;
2362
2363 err_no_pcm:
2364 err = ctx->fatal_failure = -EOPNOTSUPP;
2365 b43err(dev->wl, "The driver does not know which firmware (PCM) "
2366 "is required for your device (wl-core rev %u)\n", rev);
2367 goto error;
2368
2369 err_no_initvals:
2370 err = ctx->fatal_failure = -EOPNOTSUPP;
2371 b43err(dev->wl, "The driver does not know which firmware (initvals) "
2372 "is required for your device (wl-core rev %u)\n", rev);
2373 goto error;
2374
2375 err_load:
2376 /* We failed to load this firmware image. The error message
2377 * already is in ctx->errors. Return and let our caller decide
2378 * what to do. */
2379 goto error;
2380
2381 error:
2382 b43_release_firmware(dev);
2383 return err;
2384 }
2385
2386 static int b43_request_firmware(struct b43_wldev *dev)
2387 {
2388 struct b43_request_fw_context *ctx;
2389 unsigned int i;
2390 int err;
2391 const char *errmsg;
2392
2393 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
2394 if (!ctx)
2395 return -ENOMEM;
2396 ctx->dev = dev;
2397
2398 ctx->req_type = B43_FWTYPE_PROPRIETARY;
2399 err = b43_try_request_fw(ctx);
2400 if (!err)
2401 goto out; /* Successfully loaded it. */
2402 err = ctx->fatal_failure;
2403 if (err)
2404 goto out;
2405
2406 ctx->req_type = B43_FWTYPE_OPENSOURCE;
2407 err = b43_try_request_fw(ctx);
2408 if (!err)
2409 goto out; /* Successfully loaded it. */
2410 err = ctx->fatal_failure;
2411 if (err)
2412 goto out;
2413
2414 /* Could not find a usable firmware. Print the errors. */
2415 for (i = 0; i < B43_NR_FWTYPES; i++) {
2416 errmsg = ctx->errors[i];
2417 if (strlen(errmsg))
2418 b43err(dev->wl, errmsg);
2419 }
2420 b43_print_fw_helptext(dev->wl, 1);
2421 err = -ENOENT;
2422
2423 out:
2424 kfree(ctx);
2425 return err;
2426 }
2427
2428 static int b43_upload_microcode(struct b43_wldev *dev)
2429 {
2430 struct wiphy *wiphy = dev->wl->hw->wiphy;
2431 const size_t hdr_len = sizeof(struct b43_fw_header);
2432 const __be32 *data;
2433 unsigned int i, len;
2434 u16 fwrev, fwpatch, fwdate, fwtime;
2435 u32 tmp, macctl;
2436 int err = 0;
2437
2438 /* Jump the microcode PSM to offset 0 */
2439 macctl = b43_read32(dev, B43_MMIO_MACCTL);
2440 B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN);
2441 macctl |= B43_MACCTL_PSM_JMP0;
2442 b43_write32(dev, B43_MMIO_MACCTL, macctl);
2443 /* Zero out all microcode PSM registers and shared memory. */
2444 for (i = 0; i < 64; i++)
2445 b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0);
2446 for (i = 0; i < 4096; i += 2)
2447 b43_shm_write16(dev, B43_SHM_SHARED, i, 0);
2448
2449 /* Upload Microcode. */
2450 data = (__be32 *) (dev->fw.ucode.data->data + hdr_len);
2451 len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32);
2452 b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000);
2453 for (i = 0; i < len; i++) {
2454 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
2455 udelay(10);
2456 }
2457
2458 if (dev->fw.pcm.data) {
2459 /* Upload PCM data. */
2460 data = (__be32 *) (dev->fw.pcm.data->data + hdr_len);
2461 len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32);
2462 b43_shm_control_word(dev, B43_SHM_HW, 0x01EA);
2463 b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000);
2464 /* No need for autoinc bit in SHM_HW */
2465 b43_shm_control_word(dev, B43_SHM_HW, 0x01EB);
2466 for (i = 0; i < len; i++) {
2467 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
2468 udelay(10);
2469 }
2470 }
2471
2472 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL);
2473
2474 /* Start the microcode PSM */
2475 macctl = b43_read32(dev, B43_MMIO_MACCTL);
2476 macctl &= ~B43_MACCTL_PSM_JMP0;
2477 macctl |= B43_MACCTL_PSM_RUN;
2478 b43_write32(dev, B43_MMIO_MACCTL, macctl);
2479
2480 /* Wait for the microcode to load and respond */
2481 i = 0;
2482 while (1) {
2483 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2484 if (tmp == B43_IRQ_MAC_SUSPENDED)
2485 break;
2486 i++;
2487 if (i >= 20) {
2488 b43err(dev->wl, "Microcode not responding\n");
2489 b43_print_fw_helptext(dev->wl, 1);
2490 err = -ENODEV;
2491 goto error;
2492 }
2493 msleep(50);
2494 }
2495 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */
2496
2497 /* Get and check the revisions. */
2498 fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV);
2499 fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH);
2500 fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE);
2501 fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME);
2502
2503 if (fwrev <= 0x128) {
2504 b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from "
2505 "binary drivers older than version 4.x is unsupported. "
2506 "You must upgrade your firmware files.\n");
2507 b43_print_fw_helptext(dev->wl, 1);
2508 err = -EOPNOTSUPP;
2509 goto error;
2510 }
2511 dev->fw.rev = fwrev;
2512 dev->fw.patch = fwpatch;
2513 dev->fw.opensource = (fwdate == 0xFFFF);
2514
2515 /* Default to use-all-queues. */
2516 dev->wl->hw->queues = dev->wl->mac80211_initially_registered_queues;
2517 dev->qos_enabled = !!modparam_qos;
2518 /* Default to firmware/hardware crypto acceleration. */
2519 dev->hwcrypto_enabled = 1;
2520
2521 if (dev->fw.opensource) {
2522 u16 fwcapa;
2523
2524 /* Patchlevel info is encoded in the "time" field. */
2525 dev->fw.patch = fwtime;
2526 b43info(dev->wl, "Loading OpenSource firmware version %u.%u\n",
2527 dev->fw.rev, dev->fw.patch);
2528
2529 fwcapa = b43_fwcapa_read(dev);
2530 if (!(fwcapa & B43_FWCAPA_HWCRYPTO) || dev->fw.pcm_request_failed) {
2531 b43info(dev->wl, "Hardware crypto acceleration not supported by firmware\n");
2532 /* Disable hardware crypto and fall back to software crypto. */
2533 dev->hwcrypto_enabled = 0;
2534 }
2535 if (!(fwcapa & B43_FWCAPA_QOS)) {
2536 b43info(dev->wl, "QoS not supported by firmware\n");
2537 /* Disable QoS. Tweak hw->queues to 1. It will be restored before
2538 * ieee80211_unregister to make sure the networking core can
2539 * properly free possible resources. */
2540 dev->wl->hw->queues = 1;
2541 dev->qos_enabled = 0;
2542 }
2543 } else {
2544 b43info(dev->wl, "Loading firmware version %u.%u "
2545 "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n",
2546 fwrev, fwpatch,
2547 (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
2548 (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F);
2549 if (dev->fw.pcm_request_failed) {
2550 b43warn(dev->wl, "No \"pcm5.fw\" firmware file found. "
2551 "Hardware accelerated cryptography is disabled.\n");
2552 b43_print_fw_helptext(dev->wl, 0);
2553 }
2554 }
2555
2556 snprintf(wiphy->fw_version, sizeof(wiphy->fw_version), "%u.%u",
2557 dev->fw.rev, dev->fw.patch);
2558 wiphy->hw_version = dev->dev->core_id;
2559
2560 if (b43_is_old_txhdr_format(dev)) {
2561 /* We're over the deadline, but we keep support for old fw
2562 * until it turns out to be in major conflict with something new. */
2563 b43warn(dev->wl, "You are using an old firmware image. "
2564 "Support for old firmware will be removed soon "
2565 "(official deadline was July 2008).\n");
2566 b43_print_fw_helptext(dev->wl, 0);
2567 }
2568
2569 return 0;
2570
2571 error:
2572 macctl = b43_read32(dev, B43_MMIO_MACCTL);
2573 macctl &= ~B43_MACCTL_PSM_RUN;
2574 macctl |= B43_MACCTL_PSM_JMP0;
2575 b43_write32(dev, B43_MMIO_MACCTL, macctl);
2576
2577 return err;
2578 }
2579
2580 static int b43_write_initvals(struct b43_wldev *dev,
2581 const struct b43_iv *ivals,
2582 size_t count,
2583 size_t array_size)
2584 {
2585 const struct b43_iv *iv;
2586 u16 offset;
2587 size_t i;
2588 bool bit32;
2589
2590 BUILD_BUG_ON(sizeof(struct b43_iv) != 6);
2591 iv = ivals;
2592 for (i = 0; i < count; i++) {
2593 if (array_size < sizeof(iv->offset_size))
2594 goto err_format;
2595 array_size -= sizeof(iv->offset_size);
2596 offset = be16_to_cpu(iv->offset_size);
2597 bit32 = !!(offset & B43_IV_32BIT);
2598 offset &= B43_IV_OFFSET_MASK;
2599 if (offset >= 0x1000)
2600 goto err_format;
2601 if (bit32) {
2602 u32 value;
2603
2604 if (array_size < sizeof(iv->data.d32))
2605 goto err_format;
2606 array_size -= sizeof(iv->data.d32);
2607
2608 value = get_unaligned_be32(&iv->data.d32);
2609 b43_write32(dev, offset, value);
2610
2611 iv = (const struct b43_iv *)((const uint8_t *)iv +
2612 sizeof(__be16) +
2613 sizeof(__be32));
2614 } else {
2615 u16 value;
2616
2617 if (array_size < sizeof(iv->data.d16))
2618 goto err_format;
2619 array_size -= sizeof(iv->data.d16);
2620
2621 value = be16_to_cpu(iv->data.d16);
2622 b43_write16(dev, offset, value);
2623
2624 iv = (const struct b43_iv *)((const uint8_t *)iv +
2625 sizeof(__be16) +
2626 sizeof(__be16));
2627 }
2628 }
2629 if (array_size)
2630 goto err_format;
2631
2632 return 0;
2633
2634 err_format:
2635 b43err(dev->wl, "Initial Values Firmware file-format error.\n");
2636 b43_print_fw_helptext(dev->wl, 1);
2637
2638 return -EPROTO;
2639 }
2640
2641 static int b43_upload_initvals(struct b43_wldev *dev)
2642 {
2643 const size_t hdr_len = sizeof(struct b43_fw_header);
2644 const struct b43_fw_header *hdr;
2645 struct b43_firmware *fw = &dev->fw;
2646 const struct b43_iv *ivals;
2647 size_t count;
2648 int err;
2649
2650 hdr = (const struct b43_fw_header *)(fw->initvals.data->data);
2651 ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len);
2652 count = be32_to_cpu(hdr->size);
2653 err = b43_write_initvals(dev, ivals, count,
2654 fw->initvals.data->size - hdr_len);
2655 if (err)
2656 goto out;
2657 if (fw->initvals_band.data) {
2658 hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data);
2659 ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len);
2660 count = be32_to_cpu(hdr->size);
2661 err = b43_write_initvals(dev, ivals, count,
2662 fw->initvals_band.data->size - hdr_len);
2663 if (err)
2664 goto out;
2665 }
2666 out:
2667
2668 return err;
2669 }
2670
2671 /* Initialize the GPIOs
2672 * http://bcm-specs.sipsolutions.net/GPIO
2673 */
2674 static struct ssb_device *b43_ssb_gpio_dev(struct b43_wldev *dev)
2675 {
2676 struct ssb_bus *bus = dev->dev->sdev->bus;
2677
2678 #ifdef CONFIG_SSB_DRIVER_PCICORE
2679 return (bus->chipco.dev ? bus->chipco.dev : bus->pcicore.dev);
2680 #else
2681 return bus->chipco.dev;
2682 #endif
2683 }
2684
2685 static int b43_gpio_init(struct b43_wldev *dev)
2686 {
2687 struct ssb_device *gpiodev;
2688 u32 mask, set;
2689
2690 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2691 & ~B43_MACCTL_GPOUTSMSK);
2692
2693 b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK)
2694 | 0x000F);
2695
2696 mask = 0x0000001F;
2697 set = 0x0000000F;
2698 if (dev->dev->chip_id == 0x4301) {
2699 mask |= 0x0060;
2700 set |= 0x0060;
2701 }
2702 if (0 /* FIXME: conditional unknown */ ) {
2703 b43_write16(dev, B43_MMIO_GPIO_MASK,
2704 b43_read16(dev, B43_MMIO_GPIO_MASK)
2705 | 0x0100);
2706 mask |= 0x0180;
2707 set |= 0x0180;
2708 }
2709 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL) {
2710 b43_write16(dev, B43_MMIO_GPIO_MASK,
2711 b43_read16(dev, B43_MMIO_GPIO_MASK)
2712 | 0x0200);
2713 mask |= 0x0200;
2714 set |= 0x0200;
2715 }
2716 if (dev->dev->core_rev >= 2)
2717 mask |= 0x0010; /* FIXME: This is redundant. */
2718
2719 switch (dev->dev->bus_type) {
2720 #ifdef CONFIG_B43_BCMA
2721 case B43_BUS_BCMA:
2722 bcma_cc_write32(&dev->dev->bdev->bus->drv_cc, BCMA_CC_GPIOCTL,
2723 (bcma_cc_read32(&dev->dev->bdev->bus->drv_cc,
2724 BCMA_CC_GPIOCTL) & mask) | set);
2725 break;
2726 #endif
2727 #ifdef CONFIG_B43_SSB
2728 case B43_BUS_SSB:
2729 gpiodev = b43_ssb_gpio_dev(dev);
2730 if (gpiodev)
2731 ssb_write32(gpiodev, B43_GPIO_CONTROL,
2732 (ssb_read32(gpiodev, B43_GPIO_CONTROL)
2733 & mask) | set);
2734 break;
2735 #endif
2736 }
2737
2738 return 0;
2739 }
2740
2741 /* Turn off all GPIO stuff. Call this on module unload, for example. */
2742 static void b43_gpio_cleanup(struct b43_wldev *dev)
2743 {
2744 struct ssb_device *gpiodev;
2745
2746 switch (dev->dev->bus_type) {
2747 #ifdef CONFIG_B43_BCMA
2748 case B43_BUS_BCMA:
2749 bcma_cc_write32(&dev->dev->bdev->bus->drv_cc, BCMA_CC_GPIOCTL,
2750 0);
2751 break;
2752 #endif
2753 #ifdef CONFIG_B43_SSB
2754 case B43_BUS_SSB:
2755 gpiodev = b43_ssb_gpio_dev(dev);
2756 if (gpiodev)
2757 ssb_write32(gpiodev, B43_GPIO_CONTROL, 0);
2758 break;
2759 #endif
2760 }
2761 }
2762
2763 /* http://bcm-specs.sipsolutions.net/EnableMac */
2764 void b43_mac_enable(struct b43_wldev *dev)
2765 {
2766 if (b43_debug(dev, B43_DBG_FIRMWARE)) {
2767 u16 fwstate;
2768
2769 fwstate = b43_shm_read16(dev, B43_SHM_SHARED,
2770 B43_SHM_SH_UCODESTAT);
2771 if ((fwstate != B43_SHM_SH_UCODESTAT_SUSP) &&
2772 (fwstate != B43_SHM_SH_UCODESTAT_SLEEP)) {
2773 b43err(dev->wl, "b43_mac_enable(): The firmware "
2774 "should be suspended, but current state is %u\n",
2775 fwstate);
2776 }
2777 }
2778
2779 dev->mac_suspended--;
2780 B43_WARN_ON(dev->mac_suspended < 0);
2781 if (dev->mac_suspended == 0) {
2782 b43_write32(dev, B43_MMIO_MACCTL,
2783 b43_read32(dev, B43_MMIO_MACCTL)
2784 | B43_MACCTL_ENABLED);
2785 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON,
2786 B43_IRQ_MAC_SUSPENDED);
2787 /* Commit writes */
2788 b43_read32(dev, B43_MMIO_MACCTL);
2789 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2790 b43_power_saving_ctl_bits(dev, 0);
2791 }
2792 }
2793
2794 /* http://bcm-specs.sipsolutions.net/SuspendMAC */
2795 void b43_mac_suspend(struct b43_wldev *dev)
2796 {
2797 int i;
2798 u32 tmp;
2799
2800 might_sleep();
2801 B43_WARN_ON(dev->mac_suspended < 0);
2802
2803 if (dev->mac_suspended == 0) {
2804 b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
2805 b43_write32(dev, B43_MMIO_MACCTL,
2806 b43_read32(dev, B43_MMIO_MACCTL)
2807 & ~B43_MACCTL_ENABLED);
2808 /* force pci to flush the write */
2809 b43_read32(dev, B43_MMIO_MACCTL);
2810 for (i = 35; i; i--) {
2811 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2812 if (tmp & B43_IRQ_MAC_SUSPENDED)
2813 goto out;
2814 udelay(10);
2815 }
2816 /* Hm, it seems this will take some time. Use msleep(). */
2817 for (i = 40; i; i--) {
2818 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2819 if (tmp & B43_IRQ_MAC_SUSPENDED)
2820 goto out;
2821 msleep(1);
2822 }
2823 b43err(dev->wl, "MAC suspend failed\n");
2824 }
2825 out:
2826 dev->mac_suspended++;
2827 }
2828
2829 /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/MacPhyClkSet */
2830 void b43_mac_phy_clock_set(struct b43_wldev *dev, bool on)
2831 {
2832 u32 tmp;
2833
2834 switch (dev->dev->bus_type) {
2835 #ifdef CONFIG_B43_BCMA
2836 case B43_BUS_BCMA:
2837 tmp = bcma_aread32(dev->dev->bdev, BCMA_IOCTL);
2838 if (on)
2839 tmp |= B43_BCMA_IOCTL_MACPHYCLKEN;
2840 else
2841 tmp &= ~B43_BCMA_IOCTL_MACPHYCLKEN;
2842 bcma_awrite32(dev->dev->bdev, BCMA_IOCTL, tmp);
2843 break;
2844 #endif
2845 #ifdef CONFIG_B43_SSB
2846 case B43_BUS_SSB:
2847 tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW);
2848 if (on)
2849 tmp |= B43_TMSLOW_MACPHYCLKEN;
2850 else
2851 tmp &= ~B43_TMSLOW_MACPHYCLKEN;
2852 ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp);
2853 break;
2854 #endif
2855 }
2856 }
2857
2858 static void b43_adjust_opmode(struct b43_wldev *dev)
2859 {
2860 struct b43_wl *wl = dev->wl;
2861 u32 ctl;
2862 u16 cfp_pretbtt;
2863
2864 ctl = b43_read32(dev, B43_MMIO_MACCTL);
2865 /* Reset status to STA infrastructure mode. */
2866 ctl &= ~B43_MACCTL_AP;
2867 ctl &= ~B43_MACCTL_KEEP_CTL;
2868 ctl &= ~B43_MACCTL_KEEP_BADPLCP;
2869 ctl &= ~B43_MACCTL_KEEP_BAD;
2870 ctl &= ~B43_MACCTL_PROMISC;
2871 ctl &= ~B43_MACCTL_BEACPROMISC;
2872 ctl |= B43_MACCTL_INFRA;
2873
2874 if (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
2875 b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT))
2876 ctl |= B43_MACCTL_AP;
2877 else if (b43_is_mode(wl, NL80211_IFTYPE_ADHOC))
2878 ctl &= ~B43_MACCTL_INFRA;
2879
2880 if (wl->filter_flags & FIF_CONTROL)
2881 ctl |= B43_MACCTL_KEEP_CTL;
2882 if (wl->filter_flags & FIF_FCSFAIL)
2883 ctl |= B43_MACCTL_KEEP_BAD;
2884 if (wl->filter_flags & FIF_PLCPFAIL)
2885 ctl |= B43_MACCTL_KEEP_BADPLCP;
2886 if (wl->filter_flags & FIF_PROMISC_IN_BSS)
2887 ctl |= B43_MACCTL_PROMISC;
2888 if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
2889 ctl |= B43_MACCTL_BEACPROMISC;
2890
2891 /* Workaround: On old hardware the HW-MAC-address-filter
2892 * doesn't work properly, so always run promisc in filter
2893 * it in software. */
2894 if (dev->dev->core_rev <= 4)
2895 ctl |= B43_MACCTL_PROMISC;
2896
2897 b43_write32(dev, B43_MMIO_MACCTL, ctl);
2898
2899 cfp_pretbtt = 2;
2900 if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) {
2901 if (dev->dev->chip_id == 0x4306 &&
2902 dev->dev->chip_rev == 3)
2903 cfp_pretbtt = 100;
2904 else
2905 cfp_pretbtt = 50;
2906 }
2907 b43_write16(dev, 0x612, cfp_pretbtt);
2908
2909 /* FIXME: We don't currently implement the PMQ mechanism,
2910 * so always disable it. If we want to implement PMQ,
2911 * we need to enable it here (clear DISCPMQ) in AP mode.
2912 */
2913 if (0 /* ctl & B43_MACCTL_AP */) {
2914 b43_write32(dev, B43_MMIO_MACCTL,
2915 b43_read32(dev, B43_MMIO_MACCTL)
2916 & ~B43_MACCTL_DISCPMQ);
2917 } else {
2918 b43_write32(dev, B43_MMIO_MACCTL,
2919 b43_read32(dev, B43_MMIO_MACCTL)
2920 | B43_MACCTL_DISCPMQ);
2921 }
2922 }
2923
2924 static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm)
2925 {
2926 u16 offset;
2927
2928 if (is_ofdm) {
2929 offset = 0x480;
2930 offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
2931 } else {
2932 offset = 0x4C0;
2933 offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
2934 }
2935 b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20,
2936 b43_shm_read16(dev, B43_SHM_SHARED, offset));
2937 }
2938
2939 static void b43_rate_memory_init(struct b43_wldev *dev)
2940 {
2941 switch (dev->phy.type) {
2942 case B43_PHYTYPE_A:
2943 case B43_PHYTYPE_G:
2944 case B43_PHYTYPE_N:
2945 case B43_PHYTYPE_LP:
2946 b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1);
2947 b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1);
2948 b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1);
2949 b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1);
2950 b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1);
2951 b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1);
2952 b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1);
2953 if (dev->phy.type == B43_PHYTYPE_A)
2954 break;
2955 /* fallthrough */
2956 case B43_PHYTYPE_B:
2957 b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0);
2958 b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0);
2959 b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0);
2960 b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0);
2961 break;
2962 default:
2963 B43_WARN_ON(1);
2964 }
2965 }
2966
2967 /* Set the default values for the PHY TX Control Words. */
2968 static void b43_set_phytxctl_defaults(struct b43_wldev *dev)
2969 {
2970 u16 ctl = 0;
2971
2972 ctl |= B43_TXH_PHY_ENC_CCK;
2973 ctl |= B43_TXH_PHY_ANT01AUTO;
2974 ctl |= B43_TXH_PHY_TXPWR;
2975
2976 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl);
2977 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, ctl);
2978 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, ctl);
2979 }
2980
2981 /* Set the TX-Antenna for management frames sent by firmware. */
2982 static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna)
2983 {
2984 u16 ant;
2985 u16 tmp;
2986
2987 ant = b43_antenna_to_phyctl(antenna);
2988
2989 /* For ACK/CTS */
2990 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL);
2991 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
2992 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp);
2993 /* For Probe Resposes */
2994 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL);
2995 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
2996 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp);
2997 }
2998
2999 /* This is the opposite of b43_chip_init() */
3000 static void b43_chip_exit(struct b43_wldev *dev)
3001 {
3002 b43_phy_exit(dev);
3003 b43_gpio_cleanup(dev);
3004 /* firmware is released later */
3005 }
3006
3007 /* Initialize the chip
3008 * http://bcm-specs.sipsolutions.net/ChipInit
3009 */
3010 static int b43_chip_init(struct b43_wldev *dev)
3011 {
3012 struct b43_phy *phy = &dev->phy;
3013 int err;
3014 u32 macctl;
3015 u16 value16;
3016
3017 /* Initialize the MAC control */
3018 macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED;
3019 if (dev->phy.gmode)
3020 macctl |= B43_MACCTL_GMODE;
3021 macctl |= B43_MACCTL_INFRA;
3022 b43_write32(dev, B43_MMIO_MACCTL, macctl);
3023
3024 err = b43_request_firmware(dev);
3025 if (err)
3026 goto out;
3027 err = b43_upload_microcode(dev);
3028 if (err)
3029 goto out; /* firmware is released later */
3030
3031 err = b43_gpio_init(dev);
3032 if (err)
3033 goto out; /* firmware is released later */
3034
3035 err = b43_upload_initvals(dev);
3036 if (err)
3037 goto err_gpio_clean;
3038
3039 /* Turn the Analog on and initialize the PHY. */
3040 phy->ops->switch_analog(dev, 1);
3041 err = b43_phy_init(dev);
3042 if (err)
3043 goto err_gpio_clean;
3044
3045 /* Disable Interference Mitigation. */
3046 if (phy->ops->interf_mitigation)
3047 phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE);
3048
3049 /* Select the antennae */
3050 if (phy->ops->set_rx_antenna)
3051 phy->ops->set_rx_antenna(dev, B43_ANTENNA_DEFAULT);
3052 b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT);
3053
3054 if (phy->type == B43_PHYTYPE_B) {
3055 value16 = b43_read16(dev, 0x005E);
3056 value16 |= 0x0004;
3057 b43_write16(dev, 0x005E, value16);
3058 }
3059 b43_write32(dev, 0x0100, 0x01000000);
3060 if (dev->dev->core_rev < 5)
3061 b43_write32(dev, 0x010C, 0x01000000);
3062
3063 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
3064 & ~B43_MACCTL_INFRA);
3065 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
3066 | B43_MACCTL_INFRA);
3067
3068 /* Probe Response Timeout value */
3069 /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
3070 b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000);
3071
3072 /* Initially set the wireless operation mode. */
3073 b43_adjust_opmode(dev);
3074
3075 if (dev->dev->core_rev < 3) {
3076 b43_write16(dev, 0x060E, 0x0000);
3077 b43_write16(dev, 0x0610, 0x8000);
3078 b43_write16(dev, 0x0604, 0x0000);
3079 b43_write16(dev, 0x0606, 0x0200);
3080 } else {
3081 b43_write32(dev, 0x0188, 0x80000000);
3082 b43_write32(dev, 0x018C, 0x02000000);
3083 }
3084 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000);
3085 b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
3086 b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
3087 b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
3088 b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
3089 b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
3090 b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
3091
3092 b43_mac_phy_clock_set(dev, true);
3093
3094 switch (dev->dev->bus_type) {
3095 #ifdef CONFIG_B43_BCMA
3096 case B43_BUS_BCMA:
3097 /* FIXME: 0xE74 is quite common, but should be read from CC */
3098 b43_write16(dev, B43_MMIO_POWERUP_DELAY, 0xE74);
3099 break;
3100 #endif
3101 #ifdef CONFIG_B43_SSB
3102 case B43_BUS_SSB:
3103 b43_write16(dev, B43_MMIO_POWERUP_DELAY,
3104 dev->dev->sdev->bus->chipco.fast_pwrup_delay);
3105 break;
3106 #endif
3107 }
3108
3109 err = 0;
3110 b43dbg(dev->wl, "Chip initialized\n");
3111 out:
3112 return err;
3113
3114 err_gpio_clean:
3115 b43_gpio_cleanup(dev);
3116 return err;
3117 }
3118
3119 static void b43_periodic_every60sec(struct b43_wldev *dev)
3120 {
3121 const struct b43_phy_operations *ops = dev->phy.ops;
3122
3123 if (ops->pwork_60sec)
3124 ops->pwork_60sec(dev);
3125
3126 /* Force check the TX power emission now. */
3127 b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME);
3128 }
3129
3130 static void b43_periodic_every30sec(struct b43_wldev *dev)
3131 {
3132 /* Update device statistics. */
3133 b43_calculate_link_quality(dev);
3134 }
3135
3136 static void b43_periodic_every15sec(struct b43_wldev *dev)
3137 {
3138 struct b43_phy *phy = &dev->phy;
3139 u16 wdr;
3140
3141 if (dev->fw.opensource) {
3142 /* Check if the firmware is still alive.
3143 * It will reset the watchdog counter to 0 in its idle loop. */
3144 wdr = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_WATCHDOG_REG);
3145 if (unlikely(wdr)) {
3146 b43err(dev->wl, "Firmware watchdog: The firmware died!\n");
3147 b43_controller_restart(dev, "Firmware watchdog");
3148 return;
3149 } else {
3150 b43_shm_write16(dev, B43_SHM_SCRATCH,
3151 B43_WATCHDOG_REG, 1);
3152 }
3153 }
3154
3155 if (phy->ops->pwork_15sec)
3156 phy->ops->pwork_15sec(dev);
3157
3158 atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
3159 wmb();
3160
3161 #if B43_DEBUG
3162 if (b43_debug(dev, B43_DBG_VERBOSESTATS)) {
3163 unsigned int i;
3164
3165 b43dbg(dev->wl, "Stats: %7u IRQs/sec, %7u TX/sec, %7u RX/sec\n",
3166 dev->irq_count / 15,
3167 dev->tx_count / 15,
3168 dev->rx_count / 15);
3169 dev->irq_count = 0;
3170 dev->tx_count = 0;
3171 dev->rx_count = 0;
3172 for (i = 0; i < ARRAY_SIZE(dev->irq_bit_count); i++) {
3173 if (dev->irq_bit_count[i]) {
3174 b43dbg(dev->wl, "Stats: %7u IRQ-%02u/sec (0x%08X)\n",
3175 dev->irq_bit_count[i] / 15, i, (1 << i));
3176 dev->irq_bit_count[i] = 0;
3177 }
3178 }
3179 }
3180 #endif
3181 }
3182
3183 static void do_periodic_work(struct b43_wldev *dev)
3184 {
3185 unsigned int state;
3186
3187 state = dev->periodic_state;
3188 if (state % 4 == 0)
3189 b43_periodic_every60sec(dev);
3190 if (state % 2 == 0)
3191 b43_periodic_every30sec(dev);
3192 b43_periodic_every15sec(dev);
3193 }
3194
3195 /* Periodic work locking policy:
3196 * The whole periodic work handler is protected by
3197 * wl->mutex. If another lock is needed somewhere in the
3198 * pwork callchain, it's acquired in-place, where it's needed.
3199 */
3200 static void b43_periodic_work_handler(struct work_struct *work)
3201 {
3202 struct b43_wldev *dev = container_of(work, struct b43_wldev,
3203 periodic_work.work);
3204 struct b43_wl *wl = dev->wl;
3205 unsigned long delay;
3206
3207 mutex_lock(&wl->mutex);
3208
3209 if (unlikely(b43_status(dev) != B43_STAT_STARTED))
3210 goto out;
3211 if (b43_debug(dev, B43_DBG_PWORK_STOP))
3212 goto out_requeue;
3213
3214 do_periodic_work(dev);
3215
3216 dev->periodic_state++;
3217 out_requeue:
3218 if (b43_debug(dev, B43_DBG_PWORK_FAST))
3219 delay = msecs_to_jiffies(50);
3220 else
3221 delay = round_jiffies_relative(HZ * 15);
3222 ieee80211_queue_delayed_work(wl->hw, &dev->periodic_work, delay);
3223 out:
3224 mutex_unlock(&wl->mutex);
3225 }
3226
3227 static void b43_periodic_tasks_setup(struct b43_wldev *dev)
3228 {
3229 struct delayed_work *work = &dev->periodic_work;
3230
3231 dev->periodic_state = 0;
3232 INIT_DELAYED_WORK(work, b43_periodic_work_handler);
3233 ieee80211_queue_delayed_work(dev->wl->hw, work, 0);
3234 }
3235
3236 /* Check if communication with the device works correctly. */
3237 static int b43_validate_chipaccess(struct b43_wldev *dev)
3238 {
3239 u32 v, backup0, backup4;
3240
3241 backup0 = b43_shm_read32(dev, B43_SHM_SHARED, 0);
3242 backup4 = b43_shm_read32(dev, B43_SHM_SHARED, 4);
3243
3244 /* Check for read/write and endianness problems. */
3245 b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55);
3246 if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55)
3247 goto error;
3248 b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA);
3249 if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA)
3250 goto error;
3251
3252 /* Check if unaligned 32bit SHM_SHARED access works properly.
3253 * However, don't bail out on failure, because it's noncritical. */
3254 b43_shm_write16(dev, B43_SHM_SHARED, 0, 0x1122);
3255 b43_shm_write16(dev, B43_SHM_SHARED, 2, 0x3344);
3256 b43_shm_write16(dev, B43_SHM_SHARED, 4, 0x5566);
3257 b43_shm_write16(dev, B43_SHM_SHARED, 6, 0x7788);
3258 if (b43_shm_read32(dev, B43_SHM_SHARED, 2) != 0x55663344)
3259 b43warn(dev->wl, "Unaligned 32bit SHM read access is broken\n");
3260 b43_shm_write32(dev, B43_SHM_SHARED, 2, 0xAABBCCDD);
3261 if (b43_shm_read16(dev, B43_SHM_SHARED, 0) != 0x1122 ||
3262 b43_shm_read16(dev, B43_SHM_SHARED, 2) != 0xCCDD ||
3263 b43_shm_read16(dev, B43_SHM_SHARED, 4) != 0xAABB ||
3264 b43_shm_read16(dev, B43_SHM_SHARED, 6) != 0x7788)
3265 b43warn(dev->wl, "Unaligned 32bit SHM write access is broken\n");
3266
3267 b43_shm_write32(dev, B43_SHM_SHARED, 0, backup0);
3268 b43_shm_write32(dev, B43_SHM_SHARED, 4, backup4);
3269
3270 if ((dev->dev->core_rev >= 3) && (dev->dev->core_rev <= 10)) {
3271 /* The 32bit register shadows the two 16bit registers
3272 * with update sideeffects. Validate this. */
3273 b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA);
3274 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB);
3275 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB)
3276 goto error;
3277 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC)
3278 goto error;
3279 }
3280 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0);
3281
3282 v = b43_read32(dev, B43_MMIO_MACCTL);
3283 v |= B43_MACCTL_GMODE;
3284 if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED))
3285 goto error;
3286
3287 return 0;
3288 error:
3289 b43err(dev->wl, "Failed to validate the chipaccess\n");
3290 return -ENODEV;
3291 }
3292
3293 static void b43_security_init(struct b43_wldev *dev)
3294 {
3295 dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP);
3296 /* KTP is a word address, but we address SHM bytewise.
3297 * So multiply by two.
3298 */
3299 dev->ktp *= 2;
3300 /* Number of RCMTA address slots */
3301 b43_write16(dev, B43_MMIO_RCMTA_COUNT, B43_NR_PAIRWISE_KEYS);
3302 /* Clear the key memory. */
3303 b43_clear_keys(dev);
3304 }
3305
3306 #ifdef CONFIG_B43_HWRNG
3307 static int b43_rng_read(struct hwrng *rng, u32 *data)
3308 {
3309 struct b43_wl *wl = (struct b43_wl *)rng->priv;
3310 struct b43_wldev *dev;
3311 int count = -ENODEV;
3312
3313 mutex_lock(&wl->mutex);
3314 dev = wl->current_dev;
3315 if (likely(dev && b43_status(dev) >= B43_STAT_INITIALIZED)) {
3316 *data = b43_read16(dev, B43_MMIO_RNG);
3317 count = sizeof(u16);
3318 }
3319 mutex_unlock(&wl->mutex);
3320
3321 return count;
3322 }
3323 #endif /* CONFIG_B43_HWRNG */
3324
3325 static void b43_rng_exit(struct b43_wl *wl)
3326 {
3327 #ifdef CONFIG_B43_HWRNG
3328 if (wl->rng_initialized)
3329 hwrng_unregister(&wl->rng);
3330 #endif /* CONFIG_B43_HWRNG */
3331 }
3332
3333 static int b43_rng_init(struct b43_wl *wl)
3334 {
3335 int err = 0;
3336
3337 #ifdef CONFIG_B43_HWRNG
3338 snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name),
3339 "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy));
3340 wl->rng.name = wl->rng_name;
3341 wl->rng.data_read = b43_rng_read;
3342 wl->rng.priv = (unsigned long)wl;
3343 wl->rng_initialized = 1;
3344 err = hwrng_register(&wl->rng);
3345 if (err) {
3346 wl->rng_initialized = 0;
3347 b43err(wl, "Failed to register the random "
3348 "number generator (%d)\n", err);
3349 }
3350 #endif /* CONFIG_B43_HWRNG */
3351
3352 return err;
3353 }
3354
3355 static void b43_tx_work(struct work_struct *work)
3356 {
3357 struct b43_wl *wl = container_of(work, struct b43_wl, tx_work);
3358 struct b43_wldev *dev;
3359 struct sk_buff *skb;
3360 int err = 0;
3361
3362 mutex_lock(&wl->mutex);
3363 dev = wl->current_dev;
3364 if (unlikely(!dev || b43_status(dev) < B43_STAT_STARTED)) {
3365 mutex_unlock(&wl->mutex);
3366 return;
3367 }
3368
3369 while (skb_queue_len(&wl->tx_queue)) {
3370 skb = skb_dequeue(&wl->tx_queue);
3371
3372 if (b43_using_pio_transfers(dev))
3373 err = b43_pio_tx(dev, skb);
3374 else
3375 err = b43_dma_tx(dev, skb);
3376 if (unlikely(err))
3377 dev_kfree_skb(skb); /* Drop it */
3378 }
3379
3380 #if B43_DEBUG
3381 dev->tx_count++;
3382 #endif
3383 mutex_unlock(&wl->mutex);
3384 }
3385
3386 static void b43_op_tx(struct ieee80211_hw *hw,
3387 struct sk_buff *skb)
3388 {
3389 struct b43_wl *wl = hw_to_b43_wl(hw);
3390
3391 if (unlikely(skb->len < 2 + 2 + 6)) {
3392 /* Too short, this can't be a valid frame. */
3393 dev_kfree_skb_any(skb);
3394 return;
3395 }
3396 B43_WARN_ON(skb_shinfo(skb)->nr_frags);
3397
3398 skb_queue_tail(&wl->tx_queue, skb);
3399 ieee80211_queue_work(wl->hw, &wl->tx_work);
3400 }
3401
3402 static void b43_qos_params_upload(struct b43_wldev *dev,
3403 const struct ieee80211_tx_queue_params *p,
3404 u16 shm_offset)
3405 {
3406 u16 params[B43_NR_QOSPARAMS];
3407 int bslots, tmp;
3408 unsigned int i;
3409
3410 if (!dev->qos_enabled)
3411 return;
3412
3413 bslots = b43_read16(dev, B43_MMIO_RNG) & p->cw_min;
3414
3415 memset(&params, 0, sizeof(params));
3416
3417 params[B43_QOSPARAM_TXOP] = p->txop * 32;
3418 params[B43_QOSPARAM_CWMIN] = p->cw_min;
3419 params[B43_QOSPARAM_CWMAX] = p->cw_max;
3420 params[B43_QOSPARAM_CWCUR] = p->cw_min;
3421 params[B43_QOSPARAM_AIFS] = p->aifs;
3422 params[B43_QOSPARAM_BSLOTS] = bslots;
3423 params[B43_QOSPARAM_REGGAP] = bslots + p->aifs;
3424
3425 for (i = 0; i < ARRAY_SIZE(params); i++) {
3426 if (i == B43_QOSPARAM_STATUS) {
3427 tmp = b43_shm_read16(dev, B43_SHM_SHARED,
3428 shm_offset + (i * 2));
3429 /* Mark the parameters as updated. */
3430 tmp |= 0x100;
3431 b43_shm_write16(dev, B43_SHM_SHARED,
3432 shm_offset + (i * 2),
3433 tmp);
3434 } else {
3435 b43_shm_write16(dev, B43_SHM_SHARED,
3436 shm_offset + (i * 2),
3437 params[i]);
3438 }
3439 }
3440 }
3441
3442 /* Mapping of mac80211 queue numbers to b43 QoS SHM offsets. */
3443 static const u16 b43_qos_shm_offsets[] = {
3444 /* [mac80211-queue-nr] = SHM_OFFSET, */
3445 [0] = B43_QOS_VOICE,
3446 [1] = B43_QOS_VIDEO,
3447 [2] = B43_QOS_BESTEFFORT,
3448 [3] = B43_QOS_BACKGROUND,
3449 };
3450
3451 /* Update all QOS parameters in hardware. */
3452 static void b43_qos_upload_all(struct b43_wldev *dev)
3453 {
3454 struct b43_wl *wl = dev->wl;
3455 struct b43_qos_params *params;
3456 unsigned int i;
3457
3458 if (!dev->qos_enabled)
3459 return;
3460
3461 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
3462 ARRAY_SIZE(wl->qos_params));
3463
3464 b43_mac_suspend(dev);
3465 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
3466 params = &(wl->qos_params[i]);
3467 b43_qos_params_upload(dev, &(params->p),
3468 b43_qos_shm_offsets[i]);
3469 }
3470 b43_mac_enable(dev);
3471 }
3472
3473 static void b43_qos_clear(struct b43_wl *wl)
3474 {
3475 struct b43_qos_params *params;
3476 unsigned int i;
3477
3478 /* Initialize QoS parameters to sane defaults. */
3479
3480 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
3481 ARRAY_SIZE(wl->qos_params));
3482
3483 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
3484 params = &(wl->qos_params[i]);
3485
3486 switch (b43_qos_shm_offsets[i]) {
3487 case B43_QOS_VOICE:
3488 params->p.txop = 0;
3489 params->p.aifs = 2;
3490 params->p.cw_min = 0x0001;
3491 params->p.cw_max = 0x0001;
3492 break;
3493 case B43_QOS_VIDEO:
3494 params->p.txop = 0;
3495 params->p.aifs = 2;
3496 params->p.cw_min = 0x0001;
3497 params->p.cw_max = 0x0001;
3498 break;
3499 case B43_QOS_BESTEFFORT:
3500 params->p.txop = 0;
3501 params->p.aifs = 3;
3502 params->p.cw_min = 0x0001;
3503 params->p.cw_max = 0x03FF;
3504 break;
3505 case B43_QOS_BACKGROUND:
3506 params->p.txop = 0;
3507 params->p.aifs = 7;
3508 params->p.cw_min = 0x0001;
3509 params->p.cw_max = 0x03FF;
3510 break;
3511 default:
3512 B43_WARN_ON(1);
3513 }
3514 }
3515 }
3516
3517 /* Initialize the core's QOS capabilities */
3518 static void b43_qos_init(struct b43_wldev *dev)
3519 {
3520 if (!dev->qos_enabled) {
3521 /* Disable QOS support. */
3522 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_EDCF);
3523 b43_write16(dev, B43_MMIO_IFSCTL,
3524 b43_read16(dev, B43_MMIO_IFSCTL)
3525 & ~B43_MMIO_IFSCTL_USE_EDCF);
3526 b43dbg(dev->wl, "QoS disabled\n");
3527 return;
3528 }
3529
3530 /* Upload the current QOS parameters. */
3531 b43_qos_upload_all(dev);
3532
3533 /* Enable QOS support. */
3534 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF);
3535 b43_write16(dev, B43_MMIO_IFSCTL,
3536 b43_read16(dev, B43_MMIO_IFSCTL)
3537 | B43_MMIO_IFSCTL_USE_EDCF);
3538 b43dbg(dev->wl, "QoS enabled\n");
3539 }
3540
3541 static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue,
3542 const struct ieee80211_tx_queue_params *params)
3543 {
3544 struct b43_wl *wl = hw_to_b43_wl(hw);
3545 struct b43_wldev *dev;
3546 unsigned int queue = (unsigned int)_queue;
3547 int err = -ENODEV;
3548
3549 if (queue >= ARRAY_SIZE(wl->qos_params)) {
3550 /* Queue not available or don't support setting
3551 * params on this queue. Return success to not
3552 * confuse mac80211. */
3553 return 0;
3554 }
3555 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
3556 ARRAY_SIZE(wl->qos_params));
3557
3558 mutex_lock(&wl->mutex);
3559 dev = wl->current_dev;
3560 if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED)))
3561 goto out_unlock;
3562
3563 memcpy(&(wl->qos_params[queue].p), params, sizeof(*params));
3564 b43_mac_suspend(dev);
3565 b43_qos_params_upload(dev, &(wl->qos_params[queue].p),
3566 b43_qos_shm_offsets[queue]);
3567 b43_mac_enable(dev);
3568 err = 0;
3569
3570 out_unlock:
3571 mutex_unlock(&wl->mutex);
3572
3573 return err;
3574 }
3575
3576 static int b43_op_get_stats(struct ieee80211_hw *hw,
3577 struct ieee80211_low_level_stats *stats)
3578 {
3579 struct b43_wl *wl = hw_to_b43_wl(hw);
3580
3581 mutex_lock(&wl->mutex);
3582 memcpy(stats, &wl->ieee_stats, sizeof(*stats));
3583 mutex_unlock(&wl->mutex);
3584
3585 return 0;
3586 }
3587
3588 static u64 b43_op_get_tsf(struct ieee80211_hw *hw)
3589 {
3590 struct b43_wl *wl = hw_to_b43_wl(hw);
3591 struct b43_wldev *dev;
3592 u64 tsf;
3593
3594 mutex_lock(&wl->mutex);
3595 dev = wl->current_dev;
3596
3597 if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED))
3598 b43_tsf_read(dev, &tsf);
3599 else
3600 tsf = 0;
3601
3602 mutex_unlock(&wl->mutex);
3603
3604 return tsf;
3605 }
3606
3607 static void b43_op_set_tsf(struct ieee80211_hw *hw, u64 tsf)
3608 {
3609 struct b43_wl *wl = hw_to_b43_wl(hw);
3610 struct b43_wldev *dev;
3611
3612 mutex_lock(&wl->mutex);
3613 dev = wl->current_dev;
3614
3615 if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED))
3616 b43_tsf_write(dev, tsf);
3617
3618 mutex_unlock(&wl->mutex);
3619 }
3620
3621 static void b43_put_phy_into_reset(struct b43_wldev *dev)
3622 {
3623 u32 tmp;
3624
3625 switch (dev->dev->bus_type) {
3626 #ifdef CONFIG_B43_BCMA
3627 case B43_BUS_BCMA:
3628 b43err(dev->wl,
3629 "Putting PHY into reset not supported on BCMA\n");
3630 break;
3631 #endif
3632 #ifdef CONFIG_B43_SSB
3633 case B43_BUS_SSB:
3634 tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW);
3635 tmp &= ~B43_TMSLOW_GMODE;
3636 tmp |= B43_TMSLOW_PHYRESET;
3637 tmp |= SSB_TMSLOW_FGC;
3638 ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp);
3639 msleep(1);
3640
3641 tmp = ssb_read32(dev->dev->sdev, SSB_TMSLOW);
3642 tmp &= ~SSB_TMSLOW_FGC;
3643 tmp |= B43_TMSLOW_PHYRESET;
3644 ssb_write32(dev->dev->sdev, SSB_TMSLOW, tmp);
3645 msleep(1);
3646
3647 break;
3648 #endif
3649 }
3650 }
3651
3652 static const char *band_to_string(enum ieee80211_band band)
3653 {
3654 switch (band) {
3655 case IEEE80211_BAND_5GHZ:
3656 return "5";
3657 case IEEE80211_BAND_2GHZ:
3658 return "2.4";
3659 default:
3660 break;
3661 }
3662 B43_WARN_ON(1);
3663 return "";
3664 }
3665
3666 /* Expects wl->mutex locked */
3667 static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan)
3668 {
3669 struct b43_wldev *up_dev = NULL;
3670 struct b43_wldev *down_dev;
3671 struct b43_wldev *d;
3672 int err;
3673 bool uninitialized_var(gmode);
3674 int prev_status;
3675
3676 /* Find a device and PHY which supports the band. */
3677 list_for_each_entry(d, &wl->devlist, list) {
3678 switch (chan->band) {
3679 case IEEE80211_BAND_5GHZ:
3680 if (d->phy.supports_5ghz) {
3681 up_dev = d;
3682 gmode = 0;
3683 }
3684 break;
3685 case IEEE80211_BAND_2GHZ:
3686 if (d->phy.supports_2ghz) {
3687 up_dev = d;
3688 gmode = 1;
3689 }
3690 break;
3691 default:
3692 B43_WARN_ON(1);
3693 return -EINVAL;
3694 }
3695 if (up_dev)
3696 break;
3697 }
3698 if (!up_dev) {
3699 b43err(wl, "Could not find a device for %s-GHz band operation\n",
3700 band_to_string(chan->band));
3701 return -ENODEV;
3702 }
3703 if ((up_dev == wl->current_dev) &&
3704 (!!wl->current_dev->phy.gmode == !!gmode)) {
3705 /* This device is already running. */
3706 return 0;
3707 }
3708 b43dbg(wl, "Switching to %s-GHz band\n",
3709 band_to_string(chan->band));
3710 down_dev = wl->current_dev;
3711
3712 prev_status = b43_status(down_dev);
3713 /* Shutdown the currently running core. */
3714 if (prev_status >= B43_STAT_STARTED)
3715 down_dev = b43_wireless_core_stop(down_dev);
3716 if (prev_status >= B43_STAT_INITIALIZED)
3717 b43_wireless_core_exit(down_dev);
3718
3719 if (down_dev != up_dev) {
3720 /* We switch to a different core, so we put PHY into
3721 * RESET on the old core. */
3722 b43_put_phy_into_reset(down_dev);
3723 }
3724
3725 /* Now start the new core. */
3726 up_dev->phy.gmode = gmode;
3727 if (prev_status >= B43_STAT_INITIALIZED) {
3728 err = b43_wireless_core_init(up_dev);
3729 if (err) {
3730 b43err(wl, "Fatal: Could not initialize device for "
3731 "selected %s-GHz band\n",
3732 band_to_string(chan->band));
3733 goto init_failure;
3734 }
3735 }
3736 if (prev_status >= B43_STAT_STARTED) {
3737 err = b43_wireless_core_start(up_dev);
3738 if (err) {
3739 b43err(wl, "Fatal: Coult not start device for "
3740 "selected %s-GHz band\n",
3741 band_to_string(chan->band));
3742 b43_wireless_core_exit(up_dev);
3743 goto init_failure;
3744 }
3745 }
3746 B43_WARN_ON(b43_status(up_dev) != prev_status);
3747
3748 wl->current_dev = up_dev;
3749
3750 return 0;
3751 init_failure:
3752 /* Whoops, failed to init the new core. No core is operating now. */
3753 wl->current_dev = NULL;
3754 return err;
3755 }
3756
3757 /* Write the short and long frame retry limit values. */
3758 static void b43_set_retry_limits(struct b43_wldev *dev,
3759 unsigned int short_retry,
3760 unsigned int long_retry)
3761 {
3762 /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
3763 * the chip-internal counter. */
3764 short_retry = min(short_retry, (unsigned int)0xF);
3765 long_retry = min(long_retry, (unsigned int)0xF);
3766
3767 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT,
3768 short_retry);
3769 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT,
3770 long_retry);
3771 }
3772
3773 static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
3774 {
3775 struct b43_wl *wl = hw_to_b43_wl(hw);
3776 struct b43_wldev *dev;
3777 struct b43_phy *phy;
3778 struct ieee80211_conf *conf = &hw->conf;
3779 int antenna;
3780 int err = 0;
3781
3782 mutex_lock(&wl->mutex);
3783
3784 /* Switch the band (if necessary). This might change the active core. */
3785 err = b43_switch_band(wl, conf->channel);
3786 if (err)
3787 goto out_unlock_mutex;
3788 dev = wl->current_dev;
3789 phy = &dev->phy;
3790
3791 if (conf_is_ht(conf))
3792 phy->is_40mhz =
3793 (conf_is_ht40_minus(conf) || conf_is_ht40_plus(conf));
3794 else
3795 phy->is_40mhz = false;
3796
3797 b43_mac_suspend(dev);
3798
3799 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
3800 b43_set_retry_limits(dev, conf->short_frame_max_tx_count,
3801 conf->long_frame_max_tx_count);
3802 changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS;
3803 if (!changed)
3804 goto out_mac_enable;
3805
3806 /* Switch to the requested channel.
3807 * The firmware takes care of races with the TX handler. */
3808 if (conf->channel->hw_value != phy->channel)
3809 b43_switch_channel(dev, conf->channel->hw_value);
3810
3811 dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_MONITOR);
3812
3813 /* Adjust the desired TX power level. */
3814 if (conf->power_level != 0) {
3815 if (conf->power_level != phy->desired_txpower) {
3816 phy->desired_txpower = conf->power_level;
3817 b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME |
3818 B43_TXPWR_IGNORE_TSSI);
3819 }
3820 }
3821
3822 /* Antennas for RX and management frame TX. */
3823 antenna = B43_ANTENNA_DEFAULT;
3824 b43_mgmtframe_txantenna(dev, antenna);
3825 antenna = B43_ANTENNA_DEFAULT;
3826 if (phy->ops->set_rx_antenna)
3827 phy->ops->set_rx_antenna(dev, antenna);
3828
3829 if (wl->radio_enabled != phy->radio_on) {
3830 if (wl->radio_enabled) {
3831 b43_software_rfkill(dev, false);
3832 b43info(dev->wl, "Radio turned on by software\n");
3833 if (!dev->radio_hw_enable) {
3834 b43info(dev->wl, "The hardware RF-kill button "
3835 "still turns the radio physically off. "
3836 "Press the button to turn it on.\n");
3837 }
3838 } else {
3839 b43_software_rfkill(dev, true);
3840 b43info(dev->wl, "Radio turned off by software\n");
3841 }
3842 }
3843
3844 out_mac_enable:
3845 b43_mac_enable(dev);
3846 out_unlock_mutex:
3847 mutex_unlock(&wl->mutex);
3848
3849 return err;
3850 }
3851
3852 static void b43_update_basic_rates(struct b43_wldev *dev, u32 brates)
3853 {
3854 struct ieee80211_supported_band *sband =
3855 dev->wl->hw->wiphy->bands[b43_current_band(dev->wl)];
3856 struct ieee80211_rate *rate;
3857 int i;
3858 u16 basic, direct, offset, basic_offset, rateptr;
3859
3860 for (i = 0; i < sband->n_bitrates; i++) {
3861 rate = &sband->bitrates[i];
3862
3863 if (b43_is_cck_rate(rate->hw_value)) {
3864 direct = B43_SHM_SH_CCKDIRECT;
3865 basic = B43_SHM_SH_CCKBASIC;
3866 offset = b43_plcp_get_ratecode_cck(rate->hw_value);
3867 offset &= 0xF;
3868 } else {
3869 direct = B43_SHM_SH_OFDMDIRECT;
3870 basic = B43_SHM_SH_OFDMBASIC;
3871 offset = b43_plcp_get_ratecode_ofdm(rate->hw_value);
3872 offset &= 0xF;
3873 }
3874
3875 rate = ieee80211_get_response_rate(sband, brates, rate->bitrate);
3876
3877 if (b43_is_cck_rate(rate->hw_value)) {
3878 basic_offset = b43_plcp_get_ratecode_cck(rate->hw_value);
3879 basic_offset &= 0xF;
3880 } else {
3881 basic_offset = b43_plcp_get_ratecode_ofdm(rate->hw_value);
3882 basic_offset &= 0xF;
3883 }
3884
3885 /*
3886 * Get the pointer that we need to point to
3887 * from the direct map
3888 */
3889 rateptr = b43_shm_read16(dev, B43_SHM_SHARED,
3890 direct + 2 * basic_offset);
3891 /* and write it to the basic map */
3892 b43_shm_write16(dev, B43_SHM_SHARED, basic + 2 * offset,
3893 rateptr);
3894 }
3895 }
3896
3897 static void b43_op_bss_info_changed(struct ieee80211_hw *hw,
3898 struct ieee80211_vif *vif,
3899 struct ieee80211_bss_conf *conf,
3900 u32 changed)
3901 {
3902 struct b43_wl *wl = hw_to_b43_wl(hw);
3903 struct b43_wldev *dev;
3904
3905 mutex_lock(&wl->mutex);
3906
3907 dev = wl->current_dev;
3908 if (!dev || b43_status(dev) < B43_STAT_STARTED)
3909 goto out_unlock_mutex;
3910
3911 B43_WARN_ON(wl->vif != vif);
3912
3913 if (changed & BSS_CHANGED_BSSID) {
3914 if (conf->bssid)
3915 memcpy(wl->bssid, conf->bssid, ETH_ALEN);
3916 else
3917 memset(wl->bssid, 0, ETH_ALEN);
3918 }
3919
3920 if (b43_status(dev) >= B43_STAT_INITIALIZED) {
3921 if (changed & BSS_CHANGED_BEACON &&
3922 (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
3923 b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) ||
3924 b43_is_mode(wl, NL80211_IFTYPE_ADHOC)))
3925 b43_update_templates(wl);
3926
3927 if (changed & BSS_CHANGED_BSSID)
3928 b43_write_mac_bssid_templates(dev);
3929 }
3930
3931 b43_mac_suspend(dev);
3932
3933 /* Update templates for AP/mesh mode. */
3934 if (changed & BSS_CHANGED_BEACON_INT &&
3935 (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
3936 b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) ||
3937 b43_is_mode(wl, NL80211_IFTYPE_ADHOC)))
3938 b43_set_beacon_int(dev, conf->beacon_int);
3939
3940 if (changed & BSS_CHANGED_BASIC_RATES)
3941 b43_update_basic_rates(dev, conf->basic_rates);
3942
3943 if (changed & BSS_CHANGED_ERP_SLOT) {
3944 if (conf->use_short_slot)
3945 b43_short_slot_timing_enable(dev);
3946 else
3947 b43_short_slot_timing_disable(dev);
3948 }
3949
3950 b43_mac_enable(dev);
3951 out_unlock_mutex:
3952 mutex_unlock(&wl->mutex);
3953 }
3954
3955 static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
3956 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
3957 struct ieee80211_key_conf *key)
3958 {
3959 struct b43_wl *wl = hw_to_b43_wl(hw);
3960 struct b43_wldev *dev;
3961 u8 algorithm;
3962 u8 index;
3963 int err;
3964 static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
3965
3966 if (modparam_nohwcrypt)
3967 return -ENOSPC; /* User disabled HW-crypto */
3968
3969 mutex_lock(&wl->mutex);
3970
3971 dev = wl->current_dev;
3972 err = -ENODEV;
3973 if (!dev || b43_status(dev) < B43_STAT_INITIALIZED)
3974 goto out_unlock;
3975
3976 if (dev->fw.pcm_request_failed || !dev->hwcrypto_enabled) {
3977 /* We don't have firmware for the crypto engine.
3978 * Must use software-crypto. */
3979 err = -EOPNOTSUPP;
3980 goto out_unlock;
3981 }
3982
3983 err = -EINVAL;
3984 switch (key->cipher) {
3985 case WLAN_CIPHER_SUITE_WEP40:
3986 algorithm = B43_SEC_ALGO_WEP40;
3987 break;
3988 case WLAN_CIPHER_SUITE_WEP104:
3989 algorithm = B43_SEC_ALGO_WEP104;
3990 break;
3991 case WLAN_CIPHER_SUITE_TKIP:
3992 algorithm = B43_SEC_ALGO_TKIP;
3993 break;
3994 case WLAN_CIPHER_SUITE_CCMP:
3995 algorithm = B43_SEC_ALGO_AES;
3996 break;
3997 default:
3998 B43_WARN_ON(1);
3999 goto out_unlock;
4000 }
4001 index = (u8) (key->keyidx);
4002 if (index > 3)
4003 goto out_unlock;
4004
4005 switch (cmd) {
4006 case SET_KEY:
4007 if (algorithm == B43_SEC_ALGO_TKIP &&
4008 (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE) ||
4009 !modparam_hwtkip)) {
4010 /* We support only pairwise key */
4011 err = -EOPNOTSUPP;
4012 goto out_unlock;
4013 }
4014
4015 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
4016 if (WARN_ON(!sta)) {
4017 err = -EOPNOTSUPP;
4018 goto out_unlock;
4019 }
4020 /* Pairwise key with an assigned MAC address. */
4021 err = b43_key_write(dev, -1, algorithm,
4022 key->key, key->keylen,
4023 sta->addr, key);
4024 } else {
4025 /* Group key */
4026 err = b43_key_write(dev, index, algorithm,
4027 key->key, key->keylen, NULL, key);
4028 }
4029 if (err)
4030 goto out_unlock;
4031
4032 if (algorithm == B43_SEC_ALGO_WEP40 ||
4033 algorithm == B43_SEC_ALGO_WEP104) {
4034 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS);
4035 } else {
4036 b43_hf_write(dev,
4037 b43_hf_read(dev) & ~B43_HF_USEDEFKEYS);
4038 }
4039 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
4040 if (algorithm == B43_SEC_ALGO_TKIP)
4041 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
4042 break;
4043 case DISABLE_KEY: {
4044 err = b43_key_clear(dev, key->hw_key_idx);
4045 if (err)
4046 goto out_unlock;
4047 break;
4048 }
4049 default:
4050 B43_WARN_ON(1);
4051 }
4052
4053 out_unlock:
4054 if (!err) {
4055 b43dbg(wl, "%s hardware based encryption for keyidx: %d, "
4056 "mac: %pM\n",
4057 cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
4058 sta ? sta->addr : bcast_addr);
4059 b43_dump_keymemory(dev);
4060 }
4061 mutex_unlock(&wl->mutex);
4062
4063 return err;
4064 }
4065
4066 static void b43_op_configure_filter(struct ieee80211_hw *hw,
4067 unsigned int changed, unsigned int *fflags,
4068 u64 multicast)
4069 {
4070 struct b43_wl *wl = hw_to_b43_wl(hw);
4071 struct b43_wldev *dev;
4072
4073 mutex_lock(&wl->mutex);
4074 dev = wl->current_dev;
4075 if (!dev) {
4076 *fflags = 0;
4077 goto out_unlock;
4078 }
4079
4080 *fflags &= FIF_PROMISC_IN_BSS |
4081 FIF_ALLMULTI |
4082 FIF_FCSFAIL |
4083 FIF_PLCPFAIL |
4084 FIF_CONTROL |
4085 FIF_OTHER_BSS |
4086 FIF_BCN_PRBRESP_PROMISC;
4087
4088 changed &= FIF_PROMISC_IN_BSS |
4089 FIF_ALLMULTI |
4090 FIF_FCSFAIL |
4091 FIF_PLCPFAIL |
4092 FIF_CONTROL |
4093 FIF_OTHER_BSS |
4094 FIF_BCN_PRBRESP_PROMISC;
4095
4096 wl->filter_flags = *fflags;
4097
4098 if (changed && b43_status(dev) >= B43_STAT_INITIALIZED)
4099 b43_adjust_opmode(dev);
4100
4101 out_unlock:
4102 mutex_unlock(&wl->mutex);
4103 }
4104
4105 /* Locking: wl->mutex
4106 * Returns the current dev. This might be different from the passed in dev,
4107 * because the core might be gone away while we unlocked the mutex. */
4108 static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev)
4109 {
4110 struct b43_wl *wl = dev->wl;
4111 struct b43_wldev *orig_dev;
4112 u32 mask;
4113
4114 redo:
4115 if (!dev || b43_status(dev) < B43_STAT_STARTED)
4116 return dev;
4117
4118 /* Cancel work. Unlock to avoid deadlocks. */
4119 mutex_unlock(&wl->mutex);
4120 cancel_delayed_work_sync(&dev->periodic_work);
4121 cancel_work_sync(&wl->tx_work);
4122 mutex_lock(&wl->mutex);
4123 dev = wl->current_dev;
4124 if (!dev || b43_status(dev) < B43_STAT_STARTED) {
4125 /* Whoops, aliens ate up the device while we were unlocked. */
4126 return dev;
4127 }
4128
4129 /* Disable interrupts on the device. */
4130 b43_set_status(dev, B43_STAT_INITIALIZED);
4131 if (b43_bus_host_is_sdio(dev->dev)) {
4132 /* wl->mutex is locked. That is enough. */
4133 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0);
4134 b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */
4135 } else {
4136 spin_lock_irq(&wl->hardirq_lock);
4137 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0);
4138 b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */
4139 spin_unlock_irq(&wl->hardirq_lock);
4140 }
4141 /* Synchronize and free the interrupt handlers. Unlock to avoid deadlocks. */
4142 orig_dev = dev;
4143 mutex_unlock(&wl->mutex);
4144 if (b43_bus_host_is_sdio(dev->dev)) {
4145 b43_sdio_free_irq(dev);
4146 } else {
4147 synchronize_irq(dev->dev->irq);
4148 free_irq(dev->dev->irq, dev);
4149 }
4150 mutex_lock(&wl->mutex);
4151 dev = wl->current_dev;
4152 if (!dev)
4153 return dev;
4154 if (dev != orig_dev) {
4155 if (b43_status(dev) >= B43_STAT_STARTED)
4156 goto redo;
4157 return dev;
4158 }
4159 mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
4160 B43_WARN_ON(mask != 0xFFFFFFFF && mask);
4161
4162 /* Drain the TX queue */
4163 while (skb_queue_len(&wl->tx_queue))
4164 dev_kfree_skb(skb_dequeue(&wl->tx_queue));
4165
4166 b43_mac_suspend(dev);
4167 b43_leds_exit(dev);
4168 b43dbg(wl, "Wireless interface stopped\n");
4169
4170 return dev;
4171 }
4172
4173 /* Locking: wl->mutex */
4174 static int b43_wireless_core_start(struct b43_wldev *dev)
4175 {
4176 int err;
4177
4178 B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED);
4179
4180 drain_txstatus_queue(dev);
4181 if (b43_bus_host_is_sdio(dev->dev)) {
4182 err = b43_sdio_request_irq(dev, b43_sdio_interrupt_handler);
4183 if (err) {
4184 b43err(dev->wl, "Cannot request SDIO IRQ\n");
4185 goto out;
4186 }
4187 } else {
4188 err = request_threaded_irq(dev->dev->irq, b43_interrupt_handler,
4189 b43_interrupt_thread_handler,
4190 IRQF_SHARED, KBUILD_MODNAME, dev);
4191 if (err) {
4192 b43err(dev->wl, "Cannot request IRQ-%d\n",
4193 dev->dev->irq);
4194 goto out;
4195 }
4196 }
4197
4198 /* We are ready to run. */
4199 ieee80211_wake_queues(dev->wl->hw);
4200 b43_set_status(dev, B43_STAT_STARTED);
4201
4202 /* Start data flow (TX/RX). */
4203 b43_mac_enable(dev);
4204 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask);
4205
4206 /* Start maintenance work */
4207 b43_periodic_tasks_setup(dev);
4208
4209 b43_leds_init(dev);
4210
4211 b43dbg(dev->wl, "Wireless interface started\n");
4212 out:
4213 return err;
4214 }
4215
4216 /* Get PHY and RADIO versioning numbers */
4217 static int b43_phy_versioning(struct b43_wldev *dev)
4218 {
4219 struct b43_phy *phy = &dev->phy;
4220 u32 tmp;
4221 u8 analog_type;
4222 u8 phy_type;
4223 u8 phy_rev;
4224 u16 radio_manuf;
4225 u16 radio_ver;
4226 u16 radio_rev;
4227 int unsupported = 0;
4228
4229 /* Get PHY versioning */
4230 tmp = b43_read16(dev, B43_MMIO_PHY_VER);
4231 analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT;
4232 phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT;
4233 phy_rev = (tmp & B43_PHYVER_VERSION);
4234 switch (phy_type) {
4235 case B43_PHYTYPE_A:
4236 if (phy_rev >= 4)
4237 unsupported = 1;
4238 break;
4239 case B43_PHYTYPE_B:
4240 if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6
4241 && phy_rev != 7)
4242 unsupported = 1;
4243 break;
4244 case B43_PHYTYPE_G:
4245 if (phy_rev > 9)
4246 unsupported = 1;
4247 break;
4248 #ifdef CONFIG_B43_PHY_N
4249 case B43_PHYTYPE_N:
4250 if (phy_rev > 9)
4251 unsupported = 1;
4252 break;
4253 #endif
4254 #ifdef CONFIG_B43_PHY_LP
4255 case B43_PHYTYPE_LP:
4256 if (phy_rev > 2)
4257 unsupported = 1;
4258 break;
4259 #endif
4260 #ifdef CONFIG_B43_PHY_HT
4261 case B43_PHYTYPE_HT:
4262 if (phy_rev > 1)
4263 unsupported = 1;
4264 break;
4265 #endif
4266 #ifdef CONFIG_B43_PHY_LCN
4267 case B43_PHYTYPE_LCN:
4268 if (phy_rev > 1)
4269 unsupported = 1;
4270 break;
4271 #endif
4272 default:
4273 unsupported = 1;
4274 };
4275 if (unsupported) {
4276 b43err(dev->wl, "FOUND UNSUPPORTED PHY "
4277 "(Analog %u, Type %u, Revision %u)\n",
4278 analog_type, phy_type, phy_rev);
4279 return -EOPNOTSUPP;
4280 }
4281 b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n",
4282 analog_type, phy_type, phy_rev);
4283
4284 /* Get RADIO versioning */
4285 if (dev->dev->core_rev >= 24) {
4286 u16 radio24[3];
4287
4288 for (tmp = 0; tmp < 3; tmp++) {
4289 b43_write16(dev, B43_MMIO_RADIO24_CONTROL, tmp);
4290 radio24[tmp] = b43_read16(dev, B43_MMIO_RADIO24_DATA);
4291 }
4292
4293 /* Broadcom uses "id" for our "ver" and has separated "ver" */
4294 /* radio_ver = (radio24[0] & 0xF0) >> 4; */
4295
4296 radio_manuf = 0x17F;
4297 radio_ver = (radio24[2] << 8) | radio24[1];
4298 radio_rev = (radio24[0] & 0xF);
4299 } else {
4300 if (dev->dev->chip_id == 0x4317) {
4301 if (dev->dev->chip_rev == 0)
4302 tmp = 0x3205017F;
4303 else if (dev->dev->chip_rev == 1)
4304 tmp = 0x4205017F;
4305 else
4306 tmp = 0x5205017F;
4307 } else {
4308 b43_write16(dev, B43_MMIO_RADIO_CONTROL,
4309 B43_RADIOCTL_ID);
4310 tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
4311 b43_write16(dev, B43_MMIO_RADIO_CONTROL,
4312 B43_RADIOCTL_ID);
4313 tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH)
4314 << 16;
4315 }
4316 radio_manuf = (tmp & 0x00000FFF);
4317 radio_ver = (tmp & 0x0FFFF000) >> 12;
4318 radio_rev = (tmp & 0xF0000000) >> 28;
4319 }
4320
4321 if (radio_manuf != 0x17F /* Broadcom */)
4322 unsupported = 1;
4323 switch (phy_type) {
4324 case B43_PHYTYPE_A:
4325 if (radio_ver != 0x2060)
4326 unsupported = 1;
4327 if (radio_rev != 1)
4328 unsupported = 1;
4329 if (radio_manuf != 0x17F)
4330 unsupported = 1;
4331 break;
4332 case B43_PHYTYPE_B:
4333 if ((radio_ver & 0xFFF0) != 0x2050)
4334 unsupported = 1;
4335 break;
4336 case B43_PHYTYPE_G:
4337 if (radio_ver != 0x2050)
4338 unsupported = 1;
4339 break;
4340 case B43_PHYTYPE_N:
4341 if (radio_ver != 0x2055 && radio_ver != 0x2056)
4342 unsupported = 1;
4343 break;
4344 case B43_PHYTYPE_LP:
4345 if (radio_ver != 0x2062 && radio_ver != 0x2063)
4346 unsupported = 1;
4347 break;
4348 case B43_PHYTYPE_HT:
4349 if (radio_ver != 0x2059)
4350 unsupported = 1;
4351 break;
4352 case B43_PHYTYPE_LCN:
4353 if (radio_ver != 0x2064)
4354 unsupported = 1;
4355 break;
4356 default:
4357 B43_WARN_ON(1);
4358 }
4359 if (unsupported) {
4360 b43err(dev->wl, "FOUND UNSUPPORTED RADIO "
4361 "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
4362 radio_manuf, radio_ver, radio_rev);
4363 return -EOPNOTSUPP;
4364 }
4365 b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n",
4366 radio_manuf, radio_ver, radio_rev);
4367
4368 phy->radio_manuf = radio_manuf;
4369 phy->radio_ver = radio_ver;
4370 phy->radio_rev = radio_rev;
4371
4372 phy->analog = analog_type;
4373 phy->type = phy_type;
4374 phy->rev = phy_rev;
4375
4376 return 0;
4377 }
4378
4379 static void setup_struct_phy_for_init(struct b43_wldev *dev,
4380 struct b43_phy *phy)
4381 {
4382 phy->hardware_power_control = !!modparam_hwpctl;
4383 phy->next_txpwr_check_time = jiffies;
4384 /* PHY TX errors counter. */
4385 atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
4386
4387 #if B43_DEBUG
4388 phy->phy_locked = 0;
4389 phy->radio_locked = 0;
4390 #endif
4391 }
4392
4393 static void setup_struct_wldev_for_init(struct b43_wldev *dev)
4394 {
4395 dev->dfq_valid = 0;
4396
4397 /* Assume the radio is enabled. If it's not enabled, the state will
4398 * immediately get fixed on the first periodic work run. */
4399 dev->radio_hw_enable = 1;
4400
4401 /* Stats */
4402 memset(&dev->stats, 0, sizeof(dev->stats));
4403
4404 setup_struct_phy_for_init(dev, &dev->phy);
4405
4406 /* IRQ related flags */
4407 dev->irq_reason = 0;
4408 memset(dev->dma_reason, 0, sizeof(dev->dma_reason));
4409 dev->irq_mask = B43_IRQ_MASKTEMPLATE;
4410 if (b43_modparam_verbose < B43_VERBOSITY_DEBUG)
4411 dev->irq_mask &= ~B43_IRQ_PHY_TXERR;
4412
4413 dev->mac_suspended = 1;
4414
4415 /* Noise calculation context */
4416 memset(&dev->noisecalc, 0, sizeof(dev->noisecalc));
4417 }
4418
4419 static void b43_bluetooth_coext_enable(struct b43_wldev *dev)
4420 {
4421 struct ssb_sprom *sprom = dev->dev->bus_sprom;
4422 u64 hf;
4423
4424 if (!modparam_btcoex)
4425 return;
4426 if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST))
4427 return;
4428 if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode)
4429 return;
4430
4431 hf = b43_hf_read(dev);
4432 if (sprom->boardflags_lo & B43_BFL_BTCMOD)
4433 hf |= B43_HF_BTCOEXALT;
4434 else
4435 hf |= B43_HF_BTCOEX;
4436 b43_hf_write(dev, hf);
4437 }
4438
4439 static void b43_bluetooth_coext_disable(struct b43_wldev *dev)
4440 {
4441 if (!modparam_btcoex)
4442 return;
4443 //TODO
4444 }
4445
4446 static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev)
4447 {
4448 struct ssb_bus *bus;
4449 u32 tmp;
4450
4451 if (dev->dev->bus_type != B43_BUS_SSB)
4452 return;
4453
4454 bus = dev->dev->sdev->bus;
4455
4456 if ((bus->chip_id == 0x4311 && bus->chip_rev == 2) ||
4457 (bus->chip_id == 0x4312)) {
4458 tmp = ssb_read32(dev->dev->sdev, SSB_IMCFGLO);
4459 tmp &= ~SSB_IMCFGLO_REQTO;
4460 tmp &= ~SSB_IMCFGLO_SERTO;
4461 tmp |= 0x3;
4462 ssb_write32(dev->dev->sdev, SSB_IMCFGLO, tmp);
4463 ssb_commit_settings(bus);
4464 }
4465 }
4466
4467 static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle)
4468 {
4469 u16 pu_delay;
4470
4471 /* The time value is in microseconds. */
4472 if (dev->phy.type == B43_PHYTYPE_A)
4473 pu_delay = 3700;
4474 else
4475 pu_delay = 1050;
4476 if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC) || idle)
4477 pu_delay = 500;
4478 if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8))
4479 pu_delay = max(pu_delay, (u16)2400);
4480
4481 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay);
4482 }
4483
4484 /* Set the TSF CFP pre-TargetBeaconTransmissionTime. */
4485 static void b43_set_pretbtt(struct b43_wldev *dev)
4486 {
4487 u16 pretbtt;
4488
4489 /* The time value is in microseconds. */
4490 if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) {
4491 pretbtt = 2;
4492 } else {
4493 if (dev->phy.type == B43_PHYTYPE_A)
4494 pretbtt = 120;
4495 else
4496 pretbtt = 250;
4497 }
4498 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt);
4499 b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt);
4500 }
4501
4502 /* Shutdown a wireless core */
4503 /* Locking: wl->mutex */
4504 static void b43_wireless_core_exit(struct b43_wldev *dev)
4505 {
4506 u32 macctl;
4507
4508 B43_WARN_ON(dev && b43_status(dev) > B43_STAT_INITIALIZED);
4509 if (!dev || b43_status(dev) != B43_STAT_INITIALIZED)
4510 return;
4511
4512 /* Unregister HW RNG driver */
4513 b43_rng_exit(dev->wl);
4514
4515 b43_set_status(dev, B43_STAT_UNINIT);
4516
4517 /* Stop the microcode PSM. */
4518 macctl = b43_read32(dev, B43_MMIO_MACCTL);
4519 macctl &= ~B43_MACCTL_PSM_RUN;
4520 macctl |= B43_MACCTL_PSM_JMP0;
4521 b43_write32(dev, B43_MMIO_MACCTL, macctl);
4522
4523 b43_dma_free(dev);
4524 b43_pio_free(dev);
4525 b43_chip_exit(dev);
4526 dev->phy.ops->switch_analog(dev, 0);
4527 if (dev->wl->current_beacon) {
4528 dev_kfree_skb_any(dev->wl->current_beacon);
4529 dev->wl->current_beacon = NULL;
4530 }
4531
4532 b43_device_disable(dev, 0);
4533 b43_bus_may_powerdown(dev);
4534 }
4535
4536 /* Initialize a wireless core */
4537 static int b43_wireless_core_init(struct b43_wldev *dev)
4538 {
4539 struct ssb_sprom *sprom = dev->dev->bus_sprom;
4540 struct b43_phy *phy = &dev->phy;
4541 int err;
4542 u64 hf;
4543
4544 B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
4545
4546 err = b43_bus_powerup(dev, 0);
4547 if (err)
4548 goto out;
4549 if (!b43_device_is_enabled(dev))
4550 b43_wireless_core_reset(dev, phy->gmode);
4551
4552 /* Reset all data structures. */
4553 setup_struct_wldev_for_init(dev);
4554 phy->ops->prepare_structs(dev);
4555
4556 /* Enable IRQ routing to this device. */
4557 switch (dev->dev->bus_type) {
4558 #ifdef CONFIG_B43_BCMA
4559 case B43_BUS_BCMA:
4560 bcma_core_pci_irq_ctl(&dev->dev->bdev->bus->drv_pci,
4561 dev->dev->bdev, true);
4562 break;
4563 #endif
4564 #ifdef CONFIG_B43_SSB
4565 case B43_BUS_SSB:
4566 ssb_pcicore_dev_irqvecs_enable(&dev->dev->sdev->bus->pcicore,
4567 dev->dev->sdev);
4568 break;
4569 #endif
4570 }
4571
4572 b43_imcfglo_timeouts_workaround(dev);
4573 b43_bluetooth_coext_disable(dev);
4574 if (phy->ops->prepare_hardware) {
4575 err = phy->ops->prepare_hardware(dev);
4576 if (err)
4577 goto err_busdown;
4578 }
4579 err = b43_chip_init(dev);
4580 if (err)
4581 goto err_busdown;
4582 b43_shm_write16(dev, B43_SHM_SHARED,
4583 B43_SHM_SH_WLCOREREV, dev->dev->core_rev);
4584 hf = b43_hf_read(dev);
4585 if (phy->type == B43_PHYTYPE_G) {
4586 hf |= B43_HF_SYMW;
4587 if (phy->rev == 1)
4588 hf |= B43_HF_GDCW;
4589 if (sprom->boardflags_lo & B43_BFL_PACTRL)
4590 hf |= B43_HF_OFDMPABOOST;
4591 }
4592 if (phy->radio_ver == 0x2050) {
4593 if (phy->radio_rev == 6)
4594 hf |= B43_HF_4318TSSI;
4595 if (phy->radio_rev < 6)
4596 hf |= B43_HF_VCORECALC;
4597 }
4598 if (sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW)
4599 hf |= B43_HF_DSCRQ; /* Disable slowclock requests from ucode. */
4600 #ifdef CONFIG_SSB_DRIVER_PCICORE
4601 if (dev->dev->bus_type == B43_BUS_SSB &&
4602 dev->dev->sdev->bus->bustype == SSB_BUSTYPE_PCI &&
4603 dev->dev->sdev->bus->pcicore.dev->id.revision <= 10)
4604 hf |= B43_HF_PCISCW; /* PCI slow clock workaround. */
4605 #endif
4606 hf &= ~B43_HF_SKCFPUP;
4607 b43_hf_write(dev, hf);
4608
4609 b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT,
4610 B43_DEFAULT_LONG_RETRY_LIMIT);
4611 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3);
4612 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2);
4613
4614 /* Disable sending probe responses from firmware.
4615 * Setting the MaxTime to one usec will always trigger
4616 * a timeout, so we never send any probe resp.
4617 * A timeout of zero is infinite. */
4618 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1);
4619
4620 b43_rate_memory_init(dev);
4621 b43_set_phytxctl_defaults(dev);
4622
4623 /* Minimum Contention Window */
4624 if (phy->type == B43_PHYTYPE_B)
4625 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F);
4626 else
4627 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF);
4628 /* Maximum Contention Window */
4629 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF);
4630
4631 if (b43_bus_host_is_pcmcia(dev->dev) ||
4632 b43_bus_host_is_sdio(dev->dev) ||
4633 dev->use_pio) {
4634 dev->__using_pio_transfers = 1;
4635 err = b43_pio_init(dev);
4636 } else {
4637 dev->__using_pio_transfers = 0;
4638 err = b43_dma_init(dev);
4639 }
4640 if (err)
4641 goto err_chip_exit;
4642 b43_qos_init(dev);
4643 b43_set_synth_pu_delay(dev, 1);
4644 b43_bluetooth_coext_enable(dev);
4645
4646 b43_bus_powerup(dev, !(sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW));
4647 b43_upload_card_macaddress(dev);
4648 b43_security_init(dev);
4649
4650 ieee80211_wake_queues(dev->wl->hw);
4651
4652 b43_set_status(dev, B43_STAT_INITIALIZED);
4653
4654 /* Register HW RNG driver */
4655 b43_rng_init(dev->wl);
4656
4657 out:
4658 return err;
4659
4660 err_chip_exit:
4661 b43_chip_exit(dev);
4662 err_busdown:
4663 b43_bus_may_powerdown(dev);
4664 B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
4665 return err;
4666 }
4667
4668 static int b43_op_add_interface(struct ieee80211_hw *hw,
4669 struct ieee80211_vif *vif)
4670 {
4671 struct b43_wl *wl = hw_to_b43_wl(hw);
4672 struct b43_wldev *dev;
4673 int err = -EOPNOTSUPP;
4674
4675 /* TODO: allow WDS/AP devices to coexist */
4676
4677 if (vif->type != NL80211_IFTYPE_AP &&
4678 vif->type != NL80211_IFTYPE_MESH_POINT &&
4679 vif->type != NL80211_IFTYPE_STATION &&
4680 vif->type != NL80211_IFTYPE_WDS &&
4681 vif->type != NL80211_IFTYPE_ADHOC)
4682 return -EOPNOTSUPP;
4683
4684 mutex_lock(&wl->mutex);
4685 if (wl->operating)
4686 goto out_mutex_unlock;
4687
4688 b43dbg(wl, "Adding Interface type %d\n", vif->type);
4689
4690 dev = wl->current_dev;
4691 wl->operating = 1;
4692 wl->vif = vif;
4693 wl->if_type = vif->type;
4694 memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
4695
4696 b43_adjust_opmode(dev);
4697 b43_set_pretbtt(dev);
4698 b43_set_synth_pu_delay(dev, 0);
4699 b43_upload_card_macaddress(dev);
4700
4701 err = 0;
4702 out_mutex_unlock:
4703 mutex_unlock(&wl->mutex);
4704
4705 return err;
4706 }
4707
4708 static void b43_op_remove_interface(struct ieee80211_hw *hw,
4709 struct ieee80211_vif *vif)
4710 {
4711 struct b43_wl *wl = hw_to_b43_wl(hw);
4712 struct b43_wldev *dev = wl->current_dev;
4713
4714 b43dbg(wl, "Removing Interface type %d\n", vif->type);
4715
4716 mutex_lock(&wl->mutex);
4717
4718 B43_WARN_ON(!wl->operating);
4719 B43_WARN_ON(wl->vif != vif);
4720 wl->vif = NULL;
4721
4722 wl->operating = 0;
4723
4724 b43_adjust_opmode(dev);
4725 memset(wl->mac_addr, 0, ETH_ALEN);
4726 b43_upload_card_macaddress(dev);
4727
4728 mutex_unlock(&wl->mutex);
4729 }
4730
4731 static int b43_op_start(struct ieee80211_hw *hw)
4732 {
4733 struct b43_wl *wl = hw_to_b43_wl(hw);
4734 struct b43_wldev *dev = wl->current_dev;
4735 int did_init = 0;
4736 int err = 0;
4737
4738 /* Kill all old instance specific information to make sure
4739 * the card won't use it in the short timeframe between start
4740 * and mac80211 reconfiguring it. */
4741 memset(wl->bssid, 0, ETH_ALEN);
4742 memset(wl->mac_addr, 0, ETH_ALEN);
4743 wl->filter_flags = 0;
4744 wl->radiotap_enabled = 0;
4745 b43_qos_clear(wl);
4746 wl->beacon0_uploaded = 0;
4747 wl->beacon1_uploaded = 0;
4748 wl->beacon_templates_virgin = 1;
4749 wl->radio_enabled = 1;
4750
4751 mutex_lock(&wl->mutex);
4752
4753 if (b43_status(dev) < B43_STAT_INITIALIZED) {
4754 err = b43_wireless_core_init(dev);
4755 if (err)
4756 goto out_mutex_unlock;
4757 did_init = 1;
4758 }
4759
4760 if (b43_status(dev) < B43_STAT_STARTED) {
4761 err = b43_wireless_core_start(dev);
4762 if (err) {
4763 if (did_init)
4764 b43_wireless_core_exit(dev);
4765 goto out_mutex_unlock;
4766 }
4767 }
4768
4769 /* XXX: only do if device doesn't support rfkill irq */
4770 wiphy_rfkill_start_polling(hw->wiphy);
4771
4772 out_mutex_unlock:
4773 mutex_unlock(&wl->mutex);
4774
4775 return err;
4776 }
4777
4778 static void b43_op_stop(struct ieee80211_hw *hw)
4779 {
4780 struct b43_wl *wl = hw_to_b43_wl(hw);
4781 struct b43_wldev *dev = wl->current_dev;
4782
4783 cancel_work_sync(&(wl->beacon_update_trigger));
4784
4785 mutex_lock(&wl->mutex);
4786 if (b43_status(dev) >= B43_STAT_STARTED) {
4787 dev = b43_wireless_core_stop(dev);
4788 if (!dev)
4789 goto out_unlock;
4790 }
4791 b43_wireless_core_exit(dev);
4792 wl->radio_enabled = 0;
4793
4794 out_unlock:
4795 mutex_unlock(&wl->mutex);
4796
4797 cancel_work_sync(&(wl->txpower_adjust_work));
4798 }
4799
4800 static int b43_op_beacon_set_tim(struct ieee80211_hw *hw,
4801 struct ieee80211_sta *sta, bool set)
4802 {
4803 struct b43_wl *wl = hw_to_b43_wl(hw);
4804
4805 /* FIXME: add locking */
4806 b43_update_templates(wl);
4807
4808 return 0;
4809 }
4810
4811 static void b43_op_sta_notify(struct ieee80211_hw *hw,
4812 struct ieee80211_vif *vif,
4813 enum sta_notify_cmd notify_cmd,
4814 struct ieee80211_sta *sta)
4815 {
4816 struct b43_wl *wl = hw_to_b43_wl(hw);
4817
4818 B43_WARN_ON(!vif || wl->vif != vif);
4819 }
4820
4821 static void b43_op_sw_scan_start_notifier(struct ieee80211_hw *hw)
4822 {
4823 struct b43_wl *wl = hw_to_b43_wl(hw);
4824 struct b43_wldev *dev;
4825
4826 mutex_lock(&wl->mutex);
4827 dev = wl->current_dev;
4828 if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) {
4829 /* Disable CFP update during scan on other channels. */
4830 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_SKCFPUP);
4831 }
4832 mutex_unlock(&wl->mutex);
4833 }
4834
4835 static void b43_op_sw_scan_complete_notifier(struct ieee80211_hw *hw)
4836 {
4837 struct b43_wl *wl = hw_to_b43_wl(hw);
4838 struct b43_wldev *dev;
4839
4840 mutex_lock(&wl->mutex);
4841 dev = wl->current_dev;
4842 if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) {
4843 /* Re-enable CFP update. */
4844 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_SKCFPUP);
4845 }
4846 mutex_unlock(&wl->mutex);
4847 }
4848
4849 static int b43_op_get_survey(struct ieee80211_hw *hw, int idx,
4850 struct survey_info *survey)
4851 {
4852 struct b43_wl *wl = hw_to_b43_wl(hw);
4853 struct b43_wldev *dev = wl->current_dev;
4854 struct ieee80211_conf *conf = &hw->conf;
4855
4856 if (idx != 0)
4857 return -ENOENT;
4858
4859 survey->channel = conf->channel;
4860 survey->filled = SURVEY_INFO_NOISE_DBM;
4861 survey->noise = dev->stats.link_noise;
4862
4863 return 0;
4864 }
4865
4866 static const struct ieee80211_ops b43_hw_ops = {
4867 .tx = b43_op_tx,
4868 .conf_tx = b43_op_conf_tx,
4869 .add_interface = b43_op_add_interface,
4870 .remove_interface = b43_op_remove_interface,
4871 .config = b43_op_config,
4872 .bss_info_changed = b43_op_bss_info_changed,
4873 .configure_filter = b43_op_configure_filter,
4874 .set_key = b43_op_set_key,
4875 .update_tkip_key = b43_op_update_tkip_key,
4876 .get_stats = b43_op_get_stats,
4877 .get_tsf = b43_op_get_tsf,
4878 .set_tsf = b43_op_set_tsf,
4879 .start = b43_op_start,
4880 .stop = b43_op_stop,
4881 .set_tim = b43_op_beacon_set_tim,
4882 .sta_notify = b43_op_sta_notify,
4883 .sw_scan_start = b43_op_sw_scan_start_notifier,
4884 .sw_scan_complete = b43_op_sw_scan_complete_notifier,
4885 .get_survey = b43_op_get_survey,
4886 .rfkill_poll = b43_rfkill_poll,
4887 };
4888
4889 /* Hard-reset the chip. Do not call this directly.
4890 * Use b43_controller_restart()
4891 */
4892 static void b43_chip_reset(struct work_struct *work)
4893 {
4894 struct b43_wldev *dev =
4895 container_of(work, struct b43_wldev, restart_work);
4896 struct b43_wl *wl = dev->wl;
4897 int err = 0;
4898 int prev_status;
4899
4900 mutex_lock(&wl->mutex);
4901
4902 prev_status = b43_status(dev);
4903 /* Bring the device down... */
4904 if (prev_status >= B43_STAT_STARTED) {
4905 dev = b43_wireless_core_stop(dev);
4906 if (!dev) {
4907 err = -ENODEV;
4908 goto out;
4909 }
4910 }
4911 if (prev_status >= B43_STAT_INITIALIZED)
4912 b43_wireless_core_exit(dev);
4913
4914 /* ...and up again. */
4915 if (prev_status >= B43_STAT_INITIALIZED) {
4916 err = b43_wireless_core_init(dev);
4917 if (err)
4918 goto out;
4919 }
4920 if (prev_status >= B43_STAT_STARTED) {
4921 err = b43_wireless_core_start(dev);
4922 if (err) {
4923 b43_wireless_core_exit(dev);
4924 goto out;
4925 }
4926 }
4927 out:
4928 if (err)
4929 wl->current_dev = NULL; /* Failed to init the dev. */
4930 mutex_unlock(&wl->mutex);
4931 if (err)
4932 b43err(wl, "Controller restart FAILED\n");
4933 else
4934 b43info(wl, "Controller restarted\n");
4935 }
4936
4937 static int b43_setup_bands(struct b43_wldev *dev,
4938 bool have_2ghz_phy, bool have_5ghz_phy)
4939 {
4940 struct ieee80211_hw *hw = dev->wl->hw;
4941
4942 if (have_2ghz_phy)
4943 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz;
4944 if (dev->phy.type == B43_PHYTYPE_N) {
4945 if (have_5ghz_phy)
4946 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_nphy;
4947 } else {
4948 if (have_5ghz_phy)
4949 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy;
4950 }
4951
4952 dev->phy.supports_2ghz = have_2ghz_phy;
4953 dev->phy.supports_5ghz = have_5ghz_phy;
4954
4955 return 0;
4956 }
4957
4958 static void b43_wireless_core_detach(struct b43_wldev *dev)
4959 {
4960 /* We release firmware that late to not be required to re-request
4961 * is all the time when we reinit the core. */
4962 b43_release_firmware(dev);
4963 b43_phy_free(dev);
4964 }
4965
4966 static int b43_wireless_core_attach(struct b43_wldev *dev)
4967 {
4968 struct b43_wl *wl = dev->wl;
4969 struct pci_dev *pdev = NULL;
4970 int err;
4971 u32 tmp;
4972 bool have_2ghz_phy = 0, have_5ghz_phy = 0;
4973
4974 /* Do NOT do any device initialization here.
4975 * Do it in wireless_core_init() instead.
4976 * This function is for gathering basic information about the HW, only.
4977 * Also some structs may be set up here. But most likely you want to have
4978 * that in core_init(), too.
4979 */
4980
4981 #ifdef CONFIG_B43_SSB
4982 if (dev->dev->bus_type == B43_BUS_SSB &&
4983 dev->dev->sdev->bus->bustype == SSB_BUSTYPE_PCI)
4984 pdev = dev->dev->sdev->bus->host_pci;
4985 #endif
4986
4987 err = b43_bus_powerup(dev, 0);
4988 if (err) {
4989 b43err(wl, "Bus powerup failed\n");
4990 goto out;
4991 }
4992
4993 /* Get the PHY type. */
4994 switch (dev->dev->bus_type) {
4995 #ifdef CONFIG_B43_BCMA
4996 case B43_BUS_BCMA:
4997 tmp = bcma_aread32(dev->dev->bdev, BCMA_IOST);
4998 have_2ghz_phy = !!(tmp & B43_BCMA_IOST_2G_PHY);
4999 have_5ghz_phy = !!(tmp & B43_BCMA_IOST_5G_PHY);
5000 break;
5001 #endif
5002 #ifdef CONFIG_B43_SSB
5003 case B43_BUS_SSB:
5004 if (dev->dev->core_rev >= 5) {
5005 tmp = ssb_read32(dev->dev->sdev, SSB_TMSHIGH);
5006 have_2ghz_phy = !!(tmp & B43_TMSHIGH_HAVE_2GHZ_PHY);
5007 have_5ghz_phy = !!(tmp & B43_TMSHIGH_HAVE_5GHZ_PHY);
5008 } else
5009 B43_WARN_ON(1);
5010 break;
5011 #endif
5012 }
5013
5014 dev->phy.gmode = have_2ghz_phy;
5015 dev->phy.radio_on = 1;
5016 b43_wireless_core_reset(dev, dev->phy.gmode);
5017
5018 err = b43_phy_versioning(dev);
5019 if (err)
5020 goto err_powerdown;
5021 /* Check if this device supports multiband. */
5022 if (!pdev ||
5023 (pdev->device != 0x4312 &&
5024 pdev->device != 0x4319 && pdev->device != 0x4324)) {
5025 /* No multiband support. */
5026 have_2ghz_phy = 0;
5027 have_5ghz_phy = 0;
5028 switch (dev->phy.type) {
5029 case B43_PHYTYPE_A:
5030 have_5ghz_phy = 1;
5031 break;
5032 case B43_PHYTYPE_LP: //FIXME not always!
5033 #if 0 //FIXME enabling 5GHz causes a NULL pointer dereference
5034 have_5ghz_phy = 1;
5035 #endif
5036 case B43_PHYTYPE_G:
5037 case B43_PHYTYPE_N:
5038 case B43_PHYTYPE_HT:
5039 case B43_PHYTYPE_LCN:
5040 have_2ghz_phy = 1;
5041 break;
5042 default:
5043 B43_WARN_ON(1);
5044 }
5045 }
5046 if (dev->phy.type == B43_PHYTYPE_A) {
5047 /* FIXME */
5048 b43err(wl, "IEEE 802.11a devices are unsupported\n");
5049 err = -EOPNOTSUPP;
5050 goto err_powerdown;
5051 }
5052 if (1 /* disable A-PHY */) {
5053 /* FIXME: For now we disable the A-PHY on multi-PHY devices. */
5054 if (dev->phy.type != B43_PHYTYPE_N &&
5055 dev->phy.type != B43_PHYTYPE_LP) {
5056 have_2ghz_phy = 1;
5057 have_5ghz_phy = 0;
5058 }
5059 }
5060
5061 err = b43_phy_allocate(dev);
5062 if (err)
5063 goto err_powerdown;
5064
5065 dev->phy.gmode = have_2ghz_phy;
5066 b43_wireless_core_reset(dev, dev->phy.gmode);
5067
5068 err = b43_validate_chipaccess(dev);
5069 if (err)
5070 goto err_phy_free;
5071 err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy);
5072 if (err)
5073 goto err_phy_free;
5074
5075 /* Now set some default "current_dev" */
5076 if (!wl->current_dev)
5077 wl->current_dev = dev;
5078 INIT_WORK(&dev->restart_work, b43_chip_reset);
5079
5080 dev->phy.ops->switch_analog(dev, 0);
5081 b43_device_disable(dev, 0);
5082 b43_bus_may_powerdown(dev);
5083
5084 out:
5085 return err;
5086
5087 err_phy_free:
5088 b43_phy_free(dev);
5089 err_powerdown:
5090 b43_bus_may_powerdown(dev);
5091 return err;
5092 }
5093
5094 static void b43_one_core_detach(struct b43_bus_dev *dev)
5095 {
5096 struct b43_wldev *wldev;
5097 struct b43_wl *wl;
5098
5099 /* Do not cancel ieee80211-workqueue based work here.
5100 * See comment in b43_remove(). */
5101
5102 wldev = b43_bus_get_wldev(dev);
5103 wl = wldev->wl;
5104 b43_debugfs_remove_device(wldev);
5105 b43_wireless_core_detach(wldev);
5106 list_del(&wldev->list);
5107 wl->nr_devs--;
5108 b43_bus_set_wldev(dev, NULL);
5109 kfree(wldev);
5110 }
5111
5112 static int b43_one_core_attach(struct b43_bus_dev *dev, struct b43_wl *wl)
5113 {
5114 struct b43_wldev *wldev;
5115 int err = -ENOMEM;
5116
5117 wldev = kzalloc(sizeof(*wldev), GFP_KERNEL);
5118 if (!wldev)
5119 goto out;
5120
5121 wldev->use_pio = b43_modparam_pio;
5122 wldev->dev = dev;
5123 wldev->wl = wl;
5124 b43_set_status(wldev, B43_STAT_UNINIT);
5125 wldev->bad_frames_preempt = modparam_bad_frames_preempt;
5126 INIT_LIST_HEAD(&wldev->list);
5127
5128 err = b43_wireless_core_attach(wldev);
5129 if (err)
5130 goto err_kfree_wldev;
5131
5132 list_add(&wldev->list, &wl->devlist);
5133 wl->nr_devs++;
5134 b43_bus_set_wldev(dev, wldev);
5135 b43_debugfs_add_device(wldev);
5136
5137 out:
5138 return err;
5139
5140 err_kfree_wldev:
5141 kfree(wldev);
5142 return err;
5143 }
5144
5145 #define IS_PDEV(pdev, _vendor, _device, _subvendor, _subdevice) ( \
5146 (pdev->vendor == PCI_VENDOR_ID_##_vendor) && \
5147 (pdev->device == _device) && \
5148 (pdev->subsystem_vendor == PCI_VENDOR_ID_##_subvendor) && \
5149 (pdev->subsystem_device == _subdevice) )
5150
5151 static void b43_sprom_fixup(struct ssb_bus *bus)
5152 {
5153 struct pci_dev *pdev;
5154
5155 /* boardflags workarounds */
5156 if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL &&
5157 bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74)
5158 bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST;
5159 if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE &&
5160 bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40)
5161 bus->sprom.boardflags_lo |= B43_BFL_PACTRL;
5162 if (bus->bustype == SSB_BUSTYPE_PCI) {
5163 pdev = bus->host_pci;
5164 if (IS_PDEV(pdev, BROADCOM, 0x4318, ASUSTEK, 0x100F) ||
5165 IS_PDEV(pdev, BROADCOM, 0x4320, DELL, 0x0003) ||
5166 IS_PDEV(pdev, BROADCOM, 0x4320, HP, 0x12f8) ||
5167 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0015) ||
5168 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0014) ||
5169 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0013) ||
5170 IS_PDEV(pdev, BROADCOM, 0x4320, MOTOROLA, 0x7010))
5171 bus->sprom.boardflags_lo &= ~B43_BFL_BTCOEXIST;
5172 }
5173 }
5174
5175 static void b43_wireless_exit(struct b43_bus_dev *dev, struct b43_wl *wl)
5176 {
5177 struct ieee80211_hw *hw = wl->hw;
5178
5179 ssb_set_devtypedata(dev->sdev, NULL);
5180 ieee80211_free_hw(hw);
5181 }
5182
5183 static struct b43_wl *b43_wireless_init(struct b43_bus_dev *dev)
5184 {
5185 struct ssb_sprom *sprom = dev->bus_sprom;
5186 struct ieee80211_hw *hw;
5187 struct b43_wl *wl;
5188 char chip_name[6];
5189
5190 hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops);
5191 if (!hw) {
5192 b43err(NULL, "Could not allocate ieee80211 device\n");
5193 return ERR_PTR(-ENOMEM);
5194 }
5195 wl = hw_to_b43_wl(hw);
5196
5197 /* fill hw info */
5198 hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
5199 IEEE80211_HW_SIGNAL_DBM;
5200
5201 hw->wiphy->interface_modes =
5202 BIT(NL80211_IFTYPE_AP) |
5203 BIT(NL80211_IFTYPE_MESH_POINT) |
5204 BIT(NL80211_IFTYPE_STATION) |
5205 BIT(NL80211_IFTYPE_WDS) |
5206 BIT(NL80211_IFTYPE_ADHOC);
5207
5208 hw->queues = modparam_qos ? 4 : 1;
5209 wl->mac80211_initially_registered_queues = hw->queues;
5210 hw->max_rates = 2;
5211 SET_IEEE80211_DEV(hw, dev->dev);
5212 if (is_valid_ether_addr(sprom->et1mac))
5213 SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
5214 else
5215 SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac);
5216
5217 /* Initialize struct b43_wl */
5218 wl->hw = hw;
5219 mutex_init(&wl->mutex);
5220 spin_lock_init(&wl->hardirq_lock);
5221 INIT_LIST_HEAD(&wl->devlist);
5222 INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work);
5223 INIT_WORK(&wl->txpower_adjust_work, b43_phy_txpower_adjust_work);
5224 INIT_WORK(&wl->tx_work, b43_tx_work);
5225 skb_queue_head_init(&wl->tx_queue);
5226
5227 snprintf(chip_name, ARRAY_SIZE(chip_name),
5228 (dev->chip_id > 0x9999) ? "%d" : "%04X", dev->chip_id);
5229 b43info(wl, "Broadcom %s WLAN found (core revision %u)\n", chip_name,
5230 dev->core_rev);
5231 return wl;
5232 }
5233
5234 #ifdef CONFIG_B43_BCMA
5235 static int b43_bcma_probe(struct bcma_device *core)
5236 {
5237 struct b43_bus_dev *dev;
5238 struct b43_wl *wl;
5239 int err;
5240
5241 dev = b43_bus_dev_bcma_init(core);
5242 if (!dev)
5243 return -ENODEV;
5244
5245 wl = b43_wireless_init(dev);
5246 if (IS_ERR(wl)) {
5247 err = PTR_ERR(wl);
5248 goto bcma_out;
5249 }
5250
5251 err = b43_one_core_attach(dev, wl);
5252 if (err)
5253 goto bcma_err_wireless_exit;
5254
5255 err = ieee80211_register_hw(wl->hw);
5256 if (err)
5257 goto bcma_err_one_core_detach;
5258 b43_leds_register(wl->current_dev);
5259
5260 bcma_out:
5261 return err;
5262
5263 bcma_err_one_core_detach:
5264 b43_one_core_detach(dev);
5265 bcma_err_wireless_exit:
5266 ieee80211_free_hw(wl->hw);
5267 return err;
5268 }
5269
5270 static void b43_bcma_remove(struct bcma_device *core)
5271 {
5272 struct b43_wldev *wldev = bcma_get_drvdata(core);
5273 struct b43_wl *wl = wldev->wl;
5274
5275 /* We must cancel any work here before unregistering from ieee80211,
5276 * as the ieee80211 unreg will destroy the workqueue. */
5277 cancel_work_sync(&wldev->restart_work);
5278
5279 /* Restore the queues count before unregistering, because firmware detect
5280 * might have modified it. Restoring is important, so the networking
5281 * stack can properly free resources. */
5282 wl->hw->queues = wl->mac80211_initially_registered_queues;
5283 b43_leds_stop(wldev);
5284 ieee80211_unregister_hw(wl->hw);
5285
5286 b43_one_core_detach(wldev->dev);
5287
5288 b43_leds_unregister(wl);
5289
5290 ieee80211_free_hw(wl->hw);
5291 }
5292
5293 static struct bcma_driver b43_bcma_driver = {
5294 .name = KBUILD_MODNAME,
5295 .id_table = b43_bcma_tbl,
5296 .probe = b43_bcma_probe,
5297 .remove = b43_bcma_remove,
5298 };
5299 #endif
5300
5301 #ifdef CONFIG_B43_SSB
5302 static
5303 int b43_ssb_probe(struct ssb_device *sdev, const struct ssb_device_id *id)
5304 {
5305 struct b43_bus_dev *dev;
5306 struct b43_wl *wl;
5307 int err;
5308 int first = 0;
5309
5310 dev = b43_bus_dev_ssb_init(sdev);
5311 if (!dev)
5312 return -ENOMEM;
5313
5314 wl = ssb_get_devtypedata(sdev);
5315 if (!wl) {
5316 /* Probing the first core. Must setup common struct b43_wl */
5317 first = 1;
5318 b43_sprom_fixup(sdev->bus);
5319 wl = b43_wireless_init(dev);
5320 if (IS_ERR(wl)) {
5321 err = PTR_ERR(wl);
5322 goto out;
5323 }
5324 ssb_set_devtypedata(sdev, wl);
5325 B43_WARN_ON(ssb_get_devtypedata(sdev) != wl);
5326 }
5327 err = b43_one_core_attach(dev, wl);
5328 if (err)
5329 goto err_wireless_exit;
5330
5331 if (first) {
5332 err = ieee80211_register_hw(wl->hw);
5333 if (err)
5334 goto err_one_core_detach;
5335 b43_leds_register(wl->current_dev);
5336 }
5337
5338 out:
5339 return err;
5340
5341 err_one_core_detach:
5342 b43_one_core_detach(dev);
5343 err_wireless_exit:
5344 if (first)
5345 b43_wireless_exit(dev, wl);
5346 return err;
5347 }
5348
5349 static void b43_ssb_remove(struct ssb_device *sdev)
5350 {
5351 struct b43_wl *wl = ssb_get_devtypedata(sdev);
5352 struct b43_wldev *wldev = ssb_get_drvdata(sdev);
5353 struct b43_bus_dev *dev = wldev->dev;
5354
5355 /* We must cancel any work here before unregistering from ieee80211,
5356 * as the ieee80211 unreg will destroy the workqueue. */
5357 cancel_work_sync(&wldev->restart_work);
5358
5359 B43_WARN_ON(!wl);
5360 if (wl->current_dev == wldev) {
5361 /* Restore the queues count before unregistering, because firmware detect
5362 * might have modified it. Restoring is important, so the networking
5363 * stack can properly free resources. */
5364 wl->hw->queues = wl->mac80211_initially_registered_queues;
5365 b43_leds_stop(wldev);
5366 ieee80211_unregister_hw(wl->hw);
5367 }
5368
5369 b43_one_core_detach(dev);
5370
5371 if (list_empty(&wl->devlist)) {
5372 b43_leds_unregister(wl);
5373 /* Last core on the chip unregistered.
5374 * We can destroy common struct b43_wl.
5375 */
5376 b43_wireless_exit(dev, wl);
5377 }
5378 }
5379
5380 static struct ssb_driver b43_ssb_driver = {
5381 .name = KBUILD_MODNAME,
5382 .id_table = b43_ssb_tbl,
5383 .probe = b43_ssb_probe,
5384 .remove = b43_ssb_remove,
5385 };
5386 #endif /* CONFIG_B43_SSB */
5387
5388 /* Perform a hardware reset. This can be called from any context. */
5389 void b43_controller_restart(struct b43_wldev *dev, const char *reason)
5390 {
5391 /* Must avoid requeueing, if we are in shutdown. */
5392 if (b43_status(dev) < B43_STAT_INITIALIZED)
5393 return;
5394 b43info(dev->wl, "Controller RESET (%s) ...\n", reason);
5395 ieee80211_queue_work(dev->wl->hw, &dev->restart_work);
5396 }
5397
5398 static void b43_print_driverinfo(void)
5399 {
5400 const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "",
5401 *feat_leds = "", *feat_sdio = "";
5402
5403 #ifdef CONFIG_B43_PCI_AUTOSELECT
5404 feat_pci = "P";
5405 #endif
5406 #ifdef CONFIG_B43_PCMCIA
5407 feat_pcmcia = "M";
5408 #endif
5409 #ifdef CONFIG_B43_PHY_N
5410 feat_nphy = "N";
5411 #endif
5412 #ifdef CONFIG_B43_LEDS
5413 feat_leds = "L";
5414 #endif
5415 #ifdef CONFIG_B43_SDIO
5416 feat_sdio = "S";
5417 #endif
5418 printk(KERN_INFO "Broadcom 43xx driver loaded "
5419 "[ Features: %s%s%s%s%s, Firmware-ID: "
5420 B43_SUPPORTED_FIRMWARE_ID " ]\n",
5421 feat_pci, feat_pcmcia, feat_nphy,
5422 feat_leds, feat_sdio);
5423 }
5424
5425 static int __init b43_init(void)
5426 {
5427 int err;
5428
5429 b43_debugfs_init();
5430 err = b43_pcmcia_init();
5431 if (err)
5432 goto err_dfs_exit;
5433 err = b43_sdio_init();
5434 if (err)
5435 goto err_pcmcia_exit;
5436 #ifdef CONFIG_B43_BCMA
5437 err = bcma_driver_register(&b43_bcma_driver);
5438 if (err)
5439 goto err_sdio_exit;
5440 #endif
5441 #ifdef CONFIG_B43_SSB
5442 err = ssb_driver_register(&b43_ssb_driver);
5443 if (err)
5444 goto err_bcma_driver_exit;
5445 #endif
5446 b43_print_driverinfo();
5447
5448 return err;
5449
5450 #ifdef CONFIG_B43_SSB
5451 err_bcma_driver_exit:
5452 #endif
5453 #ifdef CONFIG_B43_BCMA
5454 bcma_driver_unregister(&b43_bcma_driver);
5455 err_sdio_exit:
5456 #endif
5457 b43_sdio_exit();
5458 err_pcmcia_exit:
5459 b43_pcmcia_exit();
5460 err_dfs_exit:
5461 b43_debugfs_exit();
5462 return err;
5463 }
5464
5465 static void __exit b43_exit(void)
5466 {
5467 #ifdef CONFIG_B43_SSB
5468 ssb_driver_unregister(&b43_ssb_driver);
5469 #endif
5470 #ifdef CONFIG_B43_BCMA
5471 bcma_driver_unregister(&b43_bcma_driver);
5472 #endif
5473 b43_sdio_exit();
5474 b43_pcmcia_exit();
5475 b43_debugfs_exit();
5476 }
5477
5478 module_init(b43_init)
5479 module_exit(b43_exit)
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree