3 Broadcom B43 wireless driver
5 Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>
6 Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it>
7 Copyright (c) 2005, 2006 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>
11 Some parts of the code in this file are derived from the ipw2200
12 driver Copyright(c) 2003 - 2004 Intel Corporation.
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 2 of the License, or
17 (at your option) any later version.
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
24 You should have received a copy of the GNU General Public License
25 along with this program; see the file COPYING. If not, write to
26 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
27 Boston, MA 02110-1301, USA.
31 #include <linux/delay.h>
32 #include <linux/init.h>
33 #include <linux/moduleparam.h>
34 #include <linux/if_arp.h>
35 #include <linux/etherdevice.h>
36 #include <linux/version.h>
37 #include <linux/firmware.h>
38 #include <linux/wireless.h>
39 #include <linux/workqueue.h>
40 #include <linux/skbuff.h>
42 #include <linux/dma-mapping.h>
43 #include <asm/unaligned.h>
55 MODULE_DESCRIPTION("Broadcom B43 wireless driver");
56 MODULE_AUTHOR("Martin Langer");
57 MODULE_AUTHOR("Stefano Brivio");
58 MODULE_AUTHOR("Michael Buesch");
59 MODULE_LICENSE("GPL");
61 MODULE_FIRMWARE(B43_SUPPORTED_FIRMWARE_ID);
64 static int modparam_bad_frames_preempt;
65 module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444);
66 MODULE_PARM_DESC(bad_frames_preempt,
67 "enable(1) / disable(0) Bad Frames Preemption");
69 static char modparam_fwpostfix[16];
70 module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444);
71 MODULE_PARM_DESC(fwpostfix, "Postfix for the .fw files to load.");
73 static int modparam_hwpctl;
74 module_param_named(hwpctl, modparam_hwpctl, int, 0444);
75 MODULE_PARM_DESC(hwpctl, "Enable hardware-side power control (default off)");
77 static int modparam_nohwcrypt;
78 module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444);
79 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
81 int b43_modparam_qos = 1;
82 module_param_named(qos, b43_modparam_qos, int, 0444);
83 MODULE_PARM_DESC(qos, "Enable QOS support (default on)");
86 static const struct ssb_device_id b43_ssb_tbl[] = {
87 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5),
88 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6),
89 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7),
90 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9),
91 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10),
92 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11),
93 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13),
97 MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl);
99 /* Channel and ratetables are shared for all devices.
100 * They can't be const, because ieee80211 puts some precalculated
101 * data in there. This data is the same for all devices, so we don't
102 * get concurrency issues */
103 #define RATETAB_ENT(_rateid, _flags) \
105 .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \
106 .hw_value = (_rateid), \
111 * NOTE: When changing this, sync with xmit.c's
112 * b43_plcp_get_bitrate_idx_* functions!
114 static struct ieee80211_rate __b43_ratetable[] = {
115 RATETAB_ENT(B43_CCK_RATE_1MB, 0),
116 RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE),
117 RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE),
118 RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE),
119 RATETAB_ENT(B43_OFDM_RATE_6MB, 0),
120 RATETAB_ENT(B43_OFDM_RATE_9MB, 0),
121 RATETAB_ENT(B43_OFDM_RATE_12MB, 0),
122 RATETAB_ENT(B43_OFDM_RATE_18MB, 0),
123 RATETAB_ENT(B43_OFDM_RATE_24MB, 0),
124 RATETAB_ENT(B43_OFDM_RATE_36MB, 0),
125 RATETAB_ENT(B43_OFDM_RATE_48MB, 0),
126 RATETAB_ENT(B43_OFDM_RATE_54MB, 0),
129 #define b43_a_ratetable (__b43_ratetable + 4)
130 #define b43_a_ratetable_size 8
131 #define b43_b_ratetable (__b43_ratetable + 0)
132 #define b43_b_ratetable_size 4
133 #define b43_g_ratetable (__b43_ratetable + 0)
134 #define b43_g_ratetable_size 12
136 #define CHAN4G(_channel, _freq, _flags) { \
137 .band = IEEE80211_BAND_2GHZ, \
138 .center_freq = (_freq), \
139 .hw_value = (_channel), \
141 .max_antenna_gain = 0, \
144 static struct ieee80211_channel b43_2ghz_chantable[] = {
162 #define CHAN5G(_channel, _flags) { \
163 .band = IEEE80211_BAND_5GHZ, \
164 .center_freq = 5000 + (5 * (_channel)), \
165 .hw_value = (_channel), \
167 .max_antenna_gain = 0, \
170 static struct ieee80211_channel b43_5ghz_nphy_chantable[] = {
171 CHAN5G(32, 0), CHAN5G(34, 0),
172 CHAN5G(36, 0), CHAN5G(38, 0),
173 CHAN5G(40, 0), CHAN5G(42, 0),
174 CHAN5G(44, 0), CHAN5G(46, 0),
175 CHAN5G(48, 0), CHAN5G(50, 0),
176 CHAN5G(52, 0), CHAN5G(54, 0),
177 CHAN5G(56, 0), CHAN5G(58, 0),
178 CHAN5G(60, 0), CHAN5G(62, 0),
179 CHAN5G(64, 0), CHAN5G(66, 0),
180 CHAN5G(68, 0), CHAN5G(70, 0),
181 CHAN5G(72, 0), CHAN5G(74, 0),
182 CHAN5G(76, 0), CHAN5G(78, 0),
183 CHAN5G(80, 0), CHAN5G(82, 0),
184 CHAN5G(84, 0), CHAN5G(86, 0),
185 CHAN5G(88, 0), CHAN5G(90, 0),
186 CHAN5G(92, 0), CHAN5G(94, 0),
187 CHAN5G(96, 0), CHAN5G(98, 0),
188 CHAN5G(100, 0), CHAN5G(102, 0),
189 CHAN5G(104, 0), CHAN5G(106, 0),
190 CHAN5G(108, 0), CHAN5G(110, 0),
191 CHAN5G(112, 0), CHAN5G(114, 0),
192 CHAN5G(116, 0), CHAN5G(118, 0),
193 CHAN5G(120, 0), CHAN5G(122, 0),
194 CHAN5G(124, 0), CHAN5G(126, 0),
195 CHAN5G(128, 0), CHAN5G(130, 0),
196 CHAN5G(132, 0), CHAN5G(134, 0),
197 CHAN5G(136, 0), CHAN5G(138, 0),
198 CHAN5G(140, 0), CHAN5G(142, 0),
199 CHAN5G(144, 0), CHAN5G(145, 0),
200 CHAN5G(146, 0), CHAN5G(147, 0),
201 CHAN5G(148, 0), CHAN5G(149, 0),
202 CHAN5G(150, 0), CHAN5G(151, 0),
203 CHAN5G(152, 0), CHAN5G(153, 0),
204 CHAN5G(154, 0), CHAN5G(155, 0),
205 CHAN5G(156, 0), CHAN5G(157, 0),
206 CHAN5G(158, 0), CHAN5G(159, 0),
207 CHAN5G(160, 0), CHAN5G(161, 0),
208 CHAN5G(162, 0), CHAN5G(163, 0),
209 CHAN5G(164, 0), CHAN5G(165, 0),
210 CHAN5G(166, 0), CHAN5G(168, 0),
211 CHAN5G(170, 0), CHAN5G(172, 0),
212 CHAN5G(174, 0), CHAN5G(176, 0),
213 CHAN5G(178, 0), CHAN5G(180, 0),
214 CHAN5G(182, 0), CHAN5G(184, 0),
215 CHAN5G(186, 0), CHAN5G(188, 0),
216 CHAN5G(190, 0), CHAN5G(192, 0),
217 CHAN5G(194, 0), CHAN5G(196, 0),
218 CHAN5G(198, 0), CHAN5G(200, 0),
219 CHAN5G(202, 0), CHAN5G(204, 0),
220 CHAN5G(206, 0), CHAN5G(208, 0),
221 CHAN5G(210, 0), CHAN5G(212, 0),
222 CHAN5G(214, 0), CHAN5G(216, 0),
223 CHAN5G(218, 0), CHAN5G(220, 0),
224 CHAN5G(222, 0), CHAN5G(224, 0),
225 CHAN5G(226, 0), CHAN5G(228, 0),
228 static struct ieee80211_channel b43_5ghz_aphy_chantable[] = {
229 CHAN5G(34, 0), CHAN5G(36, 0),
230 CHAN5G(38, 0), CHAN5G(40, 0),
231 CHAN5G(42, 0), CHAN5G(44, 0),
232 CHAN5G(46, 0), CHAN5G(48, 0),
233 CHAN5G(52, 0), CHAN5G(56, 0),
234 CHAN5G(60, 0), CHAN5G(64, 0),
235 CHAN5G(100, 0), CHAN5G(104, 0),
236 CHAN5G(108, 0), CHAN5G(112, 0),
237 CHAN5G(116, 0), CHAN5G(120, 0),
238 CHAN5G(124, 0), CHAN5G(128, 0),
239 CHAN5G(132, 0), CHAN5G(136, 0),
240 CHAN5G(140, 0), CHAN5G(149, 0),
241 CHAN5G(153, 0), CHAN5G(157, 0),
242 CHAN5G(161, 0), CHAN5G(165, 0),
243 CHAN5G(184, 0), CHAN5G(188, 0),
244 CHAN5G(192, 0), CHAN5G(196, 0),
245 CHAN5G(200, 0), CHAN5G(204, 0),
246 CHAN5G(208, 0), CHAN5G(212, 0),
251 static struct ieee80211_supported_band b43_band_5GHz_nphy = {
252 .band = IEEE80211_BAND_5GHZ,
253 .channels = b43_5ghz_nphy_chantable,
254 .n_channels = ARRAY_SIZE(b43_5ghz_nphy_chantable),
255 .bitrates = b43_a_ratetable,
256 .n_bitrates = b43_a_ratetable_size,
259 static struct ieee80211_supported_band b43_band_5GHz_aphy = {
260 .band = IEEE80211_BAND_5GHZ,
261 .channels = b43_5ghz_aphy_chantable,
262 .n_channels = ARRAY_SIZE(b43_5ghz_aphy_chantable),
263 .bitrates = b43_a_ratetable,
264 .n_bitrates = b43_a_ratetable_size,
267 static struct ieee80211_supported_band b43_band_2GHz = {
268 .band = IEEE80211_BAND_2GHZ,
269 .channels = b43_2ghz_chantable,
270 .n_channels = ARRAY_SIZE(b43_2ghz_chantable),
271 .bitrates = b43_g_ratetable,
272 .n_bitrates = b43_g_ratetable_size,
275 static void b43_wireless_core_exit(struct b43_wldev *dev);
276 static int b43_wireless_core_init(struct b43_wldev *dev);
277 static void b43_wireless_core_stop(struct b43_wldev *dev);
278 static int b43_wireless_core_start(struct b43_wldev *dev);
280 static int b43_ratelimit(struct b43_wl *wl)
282 if (!wl || !wl->current_dev)
284 if (b43_status(wl->current_dev) < B43_STAT_STARTED)
286 /* We are up and running.
287 * Ratelimit the messages to avoid DoS over the net. */
288 return net_ratelimit();
291 void b43info(struct b43_wl *wl, const char *fmt, ...)
295 if (!b43_ratelimit(wl))
298 printk(KERN_INFO "b43-%s: ",
299 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
304 void b43err(struct b43_wl *wl, const char *fmt, ...)
308 if (!b43_ratelimit(wl))
311 printk(KERN_ERR "b43-%s ERROR: ",
312 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
317 void b43warn(struct b43_wl *wl, const char *fmt, ...)
321 if (!b43_ratelimit(wl))
324 printk(KERN_WARNING "b43-%s warning: ",
325 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
331 void b43dbg(struct b43_wl *wl, const char *fmt, ...)
336 printk(KERN_DEBUG "b43-%s debug: ",
337 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
343 static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val)
347 B43_WARN_ON(offset % 4 != 0);
349 macctl = b43_read32(dev, B43_MMIO_MACCTL);
350 if (macctl & B43_MACCTL_BE)
353 b43_write32(dev, B43_MMIO_RAM_CONTROL, offset);
355 b43_write32(dev, B43_MMIO_RAM_DATA, val);
358 static inline void b43_shm_control_word(struct b43_wldev *dev,
359 u16 routing, u16 offset)
363 /* "offset" is the WORD offset. */
367 b43_write32(dev, B43_MMIO_SHM_CONTROL, control);
370 u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset)
372 struct b43_wl *wl = dev->wl;
376 spin_lock_irqsave(&wl->shm_lock, flags);
377 if (routing == B43_SHM_SHARED) {
378 B43_WARN_ON(offset & 0x0001);
379 if (offset & 0x0003) {
380 /* Unaligned access */
381 b43_shm_control_word(dev, routing, offset >> 2);
382 ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
384 b43_shm_control_word(dev, routing, (offset >> 2) + 1);
385 ret |= b43_read16(dev, B43_MMIO_SHM_DATA);
391 b43_shm_control_word(dev, routing, offset);
392 ret = b43_read32(dev, B43_MMIO_SHM_DATA);
394 spin_unlock_irqrestore(&wl->shm_lock, flags);
399 u16 b43_shm_read16(struct b43_wldev * dev, u16 routing, u16 offset)
401 struct b43_wl *wl = dev->wl;
405 spin_lock_irqsave(&wl->shm_lock, flags);
406 if (routing == B43_SHM_SHARED) {
407 B43_WARN_ON(offset & 0x0001);
408 if (offset & 0x0003) {
409 /* Unaligned access */
410 b43_shm_control_word(dev, routing, offset >> 2);
411 ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
417 b43_shm_control_word(dev, routing, offset);
418 ret = b43_read16(dev, B43_MMIO_SHM_DATA);
420 spin_unlock_irqrestore(&wl->shm_lock, flags);
425 void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value)
427 struct b43_wl *wl = dev->wl;
430 spin_lock_irqsave(&wl->shm_lock, flags);
431 if (routing == B43_SHM_SHARED) {
432 B43_WARN_ON(offset & 0x0001);
433 if (offset & 0x0003) {
434 /* Unaligned access */
435 b43_shm_control_word(dev, routing, offset >> 2);
436 b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED,
437 (value >> 16) & 0xffff);
438 b43_shm_control_word(dev, routing, (offset >> 2) + 1);
439 b43_write16(dev, B43_MMIO_SHM_DATA, value & 0xffff);
444 b43_shm_control_word(dev, routing, offset);
445 b43_write32(dev, B43_MMIO_SHM_DATA, value);
447 spin_unlock_irqrestore(&wl->shm_lock, flags);
450 void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value)
452 struct b43_wl *wl = dev->wl;
455 spin_lock_irqsave(&wl->shm_lock, flags);
456 if (routing == B43_SHM_SHARED) {
457 B43_WARN_ON(offset & 0x0001);
458 if (offset & 0x0003) {
459 /* Unaligned access */
460 b43_shm_control_word(dev, routing, offset >> 2);
461 b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value);
466 b43_shm_control_word(dev, routing, offset);
467 b43_write16(dev, B43_MMIO_SHM_DATA, value);
469 spin_unlock_irqrestore(&wl->shm_lock, flags);
473 u64 b43_hf_read(struct b43_wldev * dev)
477 ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI);
479 ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI);
481 ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO);
486 /* Write HostFlags */
487 void b43_hf_write(struct b43_wldev *dev, u64 value)
491 lo = (value & 0x00000000FFFFULL);
492 mi = (value & 0x0000FFFF0000ULL) >> 16;
493 hi = (value & 0xFFFF00000000ULL) >> 32;
494 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO, lo);
495 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI, mi);
496 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi);
499 void b43_tsf_read(struct b43_wldev *dev, u64 * tsf)
501 /* We need to be careful. As we read the TSF from multiple
502 * registers, we should take care of register overflows.
503 * In theory, the whole tsf read process should be atomic.
504 * We try to be atomic here, by restaring the read process,
505 * if any of the high registers changed (overflew).
507 if (dev->dev->id.revision >= 3) {
508 u32 low, high, high2;
511 high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH);
512 low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW);
513 high2 = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH);
514 } while (unlikely(high != high2));
522 u16 test1, test2, test3;
525 v3 = b43_read16(dev, B43_MMIO_TSF_3);
526 v2 = b43_read16(dev, B43_MMIO_TSF_2);
527 v1 = b43_read16(dev, B43_MMIO_TSF_1);
528 v0 = b43_read16(dev, B43_MMIO_TSF_0);
530 test3 = b43_read16(dev, B43_MMIO_TSF_3);
531 test2 = b43_read16(dev, B43_MMIO_TSF_2);
532 test1 = b43_read16(dev, B43_MMIO_TSF_1);
533 } while (v3 != test3 || v2 != test2 || v1 != test1);
547 static void b43_time_lock(struct b43_wldev *dev)
551 macctl = b43_read32(dev, B43_MMIO_MACCTL);
552 macctl |= B43_MACCTL_TBTTHOLD;
553 b43_write32(dev, B43_MMIO_MACCTL, macctl);
554 /* Commit the write */
555 b43_read32(dev, B43_MMIO_MACCTL);
558 static void b43_time_unlock(struct b43_wldev *dev)
562 macctl = b43_read32(dev, B43_MMIO_MACCTL);
563 macctl &= ~B43_MACCTL_TBTTHOLD;
564 b43_write32(dev, B43_MMIO_MACCTL, macctl);
565 /* Commit the write */
566 b43_read32(dev, B43_MMIO_MACCTL);
569 static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf)
571 /* Be careful with the in-progress timer.
572 * First zero out the low register, so we have a full
573 * register-overflow duration to complete the operation.
575 if (dev->dev->id.revision >= 3) {
576 u32 lo = (tsf & 0x00000000FFFFFFFFULL);
577 u32 hi = (tsf & 0xFFFFFFFF00000000ULL) >> 32;
579 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, 0);
581 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, hi);
583 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, lo);
585 u16 v0 = (tsf & 0x000000000000FFFFULL);
586 u16 v1 = (tsf & 0x00000000FFFF0000ULL) >> 16;
587 u16 v2 = (tsf & 0x0000FFFF00000000ULL) >> 32;
588 u16 v3 = (tsf & 0xFFFF000000000000ULL) >> 48;
590 b43_write16(dev, B43_MMIO_TSF_0, 0);
592 b43_write16(dev, B43_MMIO_TSF_3, v3);
594 b43_write16(dev, B43_MMIO_TSF_2, v2);
596 b43_write16(dev, B43_MMIO_TSF_1, v1);
598 b43_write16(dev, B43_MMIO_TSF_0, v0);
602 void b43_tsf_write(struct b43_wldev *dev, u64 tsf)
605 b43_tsf_write_locked(dev, tsf);
606 b43_time_unlock(dev);
610 void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 * mac)
612 static const u8 zero_addr[ETH_ALEN] = { 0 };
619 b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset);
623 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
626 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
629 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
632 static void b43_write_mac_bssid_templates(struct b43_wldev *dev)
636 u8 mac_bssid[ETH_ALEN * 2];
640 bssid = dev->wl->bssid;
641 mac = dev->wl->mac_addr;
643 b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid);
645 memcpy(mac_bssid, mac, ETH_ALEN);
646 memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN);
648 /* Write our MAC address and BSSID to template ram */
649 for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) {
650 tmp = (u32) (mac_bssid[i + 0]);
651 tmp |= (u32) (mac_bssid[i + 1]) << 8;
652 tmp |= (u32) (mac_bssid[i + 2]) << 16;
653 tmp |= (u32) (mac_bssid[i + 3]) << 24;
654 b43_ram_write(dev, 0x20 + i, tmp);
658 static void b43_upload_card_macaddress(struct b43_wldev *dev)
660 b43_write_mac_bssid_templates(dev);
661 b43_macfilter_set(dev, B43_MACFILTER_SELF, dev->wl->mac_addr);
664 static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time)
666 /* slot_time is in usec. */
667 if (dev->phy.type != B43_PHYTYPE_G)
669 b43_write16(dev, 0x684, 510 + slot_time);
670 b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time);
673 static void b43_short_slot_timing_enable(struct b43_wldev *dev)
675 b43_set_slot_time(dev, 9);
679 static void b43_short_slot_timing_disable(struct b43_wldev *dev)
681 b43_set_slot_time(dev, 20);
685 /* Enable a Generic IRQ. "mask" is the mask of which IRQs to enable.
686 * Returns the _previously_ enabled IRQ mask.
688 static inline u32 b43_interrupt_enable(struct b43_wldev *dev, u32 mask)
692 old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
693 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask | mask);
698 /* Disable a Generic IRQ. "mask" is the mask of which IRQs to disable.
699 * Returns the _previously_ enabled IRQ mask.
701 static inline u32 b43_interrupt_disable(struct b43_wldev *dev, u32 mask)
705 old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
706 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask & ~mask);
711 /* Synchronize IRQ top- and bottom-half.
712 * IRQs must be masked before calling this.
713 * This must not be called with the irq_lock held.
715 static void b43_synchronize_irq(struct b43_wldev *dev)
717 synchronize_irq(dev->dev->irq);
718 tasklet_kill(&dev->isr_tasklet);
721 /* DummyTransmission function, as documented on
722 * http://bcm-specs.sipsolutions.net/DummyTransmission
724 void b43_dummy_transmission(struct b43_wldev *dev)
726 struct b43_phy *phy = &dev->phy;
727 unsigned int i, max_loop;
740 buffer[0] = 0x000201CC;
745 buffer[0] = 0x000B846E;
752 for (i = 0; i < 5; i++)
753 b43_ram_write(dev, i * 4, buffer[i]);
756 b43_read32(dev, B43_MMIO_MACCTL);
758 b43_write16(dev, 0x0568, 0x0000);
759 b43_write16(dev, 0x07C0, 0x0000);
760 value = ((phy->type == B43_PHYTYPE_A) ? 1 : 0);
761 b43_write16(dev, 0x050C, value);
762 b43_write16(dev, 0x0508, 0x0000);
763 b43_write16(dev, 0x050A, 0x0000);
764 b43_write16(dev, 0x054C, 0x0000);
765 b43_write16(dev, 0x056A, 0x0014);
766 b43_write16(dev, 0x0568, 0x0826);
767 b43_write16(dev, 0x0500, 0x0000);
768 b43_write16(dev, 0x0502, 0x0030);
770 if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
771 b43_radio_write16(dev, 0x0051, 0x0017);
772 for (i = 0x00; i < max_loop; i++) {
773 value = b43_read16(dev, 0x050E);
778 for (i = 0x00; i < 0x0A; i++) {
779 value = b43_read16(dev, 0x050E);
784 for (i = 0x00; i < 0x0A; i++) {
785 value = b43_read16(dev, 0x0690);
786 if (!(value & 0x0100))
790 if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
791 b43_radio_write16(dev, 0x0051, 0x0037);
794 static void key_write(struct b43_wldev *dev,
795 u8 index, u8 algorithm, const u8 * key)
802 /* Key index/algo block */
803 kidx = b43_kidx_to_fw(dev, index);
804 value = ((kidx << 4) | algorithm);
805 b43_shm_write16(dev, B43_SHM_SHARED,
806 B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value);
808 /* Write the key to the Key Table Pointer offset */
809 offset = dev->ktp + (index * B43_SEC_KEYSIZE);
810 for (i = 0; i < B43_SEC_KEYSIZE; i += 2) {
812 value |= (u16) (key[i + 1]) << 8;
813 b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value);
817 static void keymac_write(struct b43_wldev *dev, u8 index, const u8 * addr)
819 u32 addrtmp[2] = { 0, 0, };
820 u8 per_sta_keys_start = 8;
822 if (b43_new_kidx_api(dev))
823 per_sta_keys_start = 4;
825 B43_WARN_ON(index < per_sta_keys_start);
826 /* We have two default TX keys and possibly two default RX keys.
827 * Physical mac 0 is mapped to physical key 4 or 8, depending
828 * on the firmware version.
829 * So we must adjust the index here.
831 index -= per_sta_keys_start;
834 addrtmp[0] = addr[0];
835 addrtmp[0] |= ((u32) (addr[1]) << 8);
836 addrtmp[0] |= ((u32) (addr[2]) << 16);
837 addrtmp[0] |= ((u32) (addr[3]) << 24);
838 addrtmp[1] = addr[4];
839 addrtmp[1] |= ((u32) (addr[5]) << 8);
842 if (dev->dev->id.revision >= 5) {
843 /* Receive match transmitter address mechanism */
844 b43_shm_write32(dev, B43_SHM_RCMTA,
845 (index * 2) + 0, addrtmp[0]);
846 b43_shm_write16(dev, B43_SHM_RCMTA,
847 (index * 2) + 1, addrtmp[1]);
849 /* RXE (Receive Engine) and
850 * PSM (Programmable State Machine) mechanism
853 /* TODO write to RCM 16, 19, 22 and 25 */
855 b43_shm_write32(dev, B43_SHM_SHARED,
856 B43_SHM_SH_PSM + (index * 6) + 0,
858 b43_shm_write16(dev, B43_SHM_SHARED,
859 B43_SHM_SH_PSM + (index * 6) + 4,
865 static void do_key_write(struct b43_wldev *dev,
866 u8 index, u8 algorithm,
867 const u8 * key, size_t key_len, const u8 * mac_addr)
869 u8 buf[B43_SEC_KEYSIZE] = { 0, };
870 u8 per_sta_keys_start = 8;
872 if (b43_new_kidx_api(dev))
873 per_sta_keys_start = 4;
875 B43_WARN_ON(index >= dev->max_nr_keys);
876 B43_WARN_ON(key_len > B43_SEC_KEYSIZE);
878 if (index >= per_sta_keys_start)
879 keymac_write(dev, index, NULL); /* First zero out mac. */
881 memcpy(buf, key, key_len);
882 key_write(dev, index, algorithm, buf);
883 if (index >= per_sta_keys_start)
884 keymac_write(dev, index, mac_addr);
886 dev->key[index].algorithm = algorithm;
889 static int b43_key_write(struct b43_wldev *dev,
890 int index, u8 algorithm,
891 const u8 * key, size_t key_len,
893 struct ieee80211_key_conf *keyconf)
898 if (key_len > B43_SEC_KEYSIZE)
900 for (i = 0; i < dev->max_nr_keys; i++) {
901 /* Check that we don't already have this key. */
902 B43_WARN_ON(dev->key[i].keyconf == keyconf);
905 /* Either pairwise key or address is 00:00:00:00:00:00
906 * for transmit-only keys. Search the index. */
907 if (b43_new_kidx_api(dev))
911 for (i = sta_keys_start; i < dev->max_nr_keys; i++) {
912 if (!dev->key[i].keyconf) {
919 b43err(dev->wl, "Out of hardware key memory\n");
923 B43_WARN_ON(index > 3);
925 do_key_write(dev, index, algorithm, key, key_len, mac_addr);
926 if ((index <= 3) && !b43_new_kidx_api(dev)) {
928 B43_WARN_ON(mac_addr);
929 do_key_write(dev, index + 4, algorithm, key, key_len, NULL);
931 keyconf->hw_key_idx = index;
932 dev->key[index].keyconf = keyconf;
937 static int b43_key_clear(struct b43_wldev *dev, int index)
939 if (B43_WARN_ON((index < 0) || (index >= dev->max_nr_keys)))
941 do_key_write(dev, index, B43_SEC_ALGO_NONE,
942 NULL, B43_SEC_KEYSIZE, NULL);
943 if ((index <= 3) && !b43_new_kidx_api(dev)) {
944 do_key_write(dev, index + 4, B43_SEC_ALGO_NONE,
945 NULL, B43_SEC_KEYSIZE, NULL);
947 dev->key[index].keyconf = NULL;
952 static void b43_clear_keys(struct b43_wldev *dev)
956 for (i = 0; i < dev->max_nr_keys; i++)
957 b43_key_clear(dev, i);
960 void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags)
968 B43_WARN_ON((ps_flags & B43_PS_ENABLED) &&
969 (ps_flags & B43_PS_DISABLED));
970 B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP));
972 if (ps_flags & B43_PS_ENABLED) {
974 } else if (ps_flags & B43_PS_DISABLED) {
977 //TODO: If powersave is not off and FIXME is not set and we are not in adhoc
978 // and thus is not an AP and we are associated, set bit 25
980 if (ps_flags & B43_PS_AWAKE) {
982 } else if (ps_flags & B43_PS_ASLEEP) {
985 //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME,
986 // or we are associated, or FIXME, or the latest PS-Poll packet sent was
987 // successful, set bit26
990 /* FIXME: For now we force awake-on and hwps-off */
994 macctl = b43_read32(dev, B43_MMIO_MACCTL);
996 macctl |= B43_MACCTL_HWPS;
998 macctl &= ~B43_MACCTL_HWPS;
1000 macctl |= B43_MACCTL_AWAKE;
1002 macctl &= ~B43_MACCTL_AWAKE;
1003 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1005 b43_read32(dev, B43_MMIO_MACCTL);
1006 if (awake && dev->dev->id.revision >= 5) {
1007 /* Wait for the microcode to wake up. */
1008 for (i = 0; i < 100; i++) {
1009 ucstat = b43_shm_read16(dev, B43_SHM_SHARED,
1010 B43_SHM_SH_UCODESTAT);
1011 if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP)
1018 /* Turn the Analog ON/OFF */
1019 static void b43_switch_analog(struct b43_wldev *dev, int on)
1021 b43_write16(dev, B43_MMIO_PHY0, on ? 0 : 0xF4);
1024 void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags)
1029 flags |= B43_TMSLOW_PHYCLKEN;
1030 flags |= B43_TMSLOW_PHYRESET;
1031 ssb_device_enable(dev->dev, flags);
1032 msleep(2); /* Wait for the PLL to turn on. */
1034 /* Now take the PHY out of Reset again */
1035 tmslow = ssb_read32(dev->dev, SSB_TMSLOW);
1036 tmslow |= SSB_TMSLOW_FGC;
1037 tmslow &= ~B43_TMSLOW_PHYRESET;
1038 ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
1039 ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
1041 tmslow &= ~SSB_TMSLOW_FGC;
1042 ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
1043 ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
1046 /* Turn Analog ON */
1047 b43_switch_analog(dev, 1);
1049 macctl = b43_read32(dev, B43_MMIO_MACCTL);
1050 macctl &= ~B43_MACCTL_GMODE;
1051 if (flags & B43_TMSLOW_GMODE)
1052 macctl |= B43_MACCTL_GMODE;
1053 macctl |= B43_MACCTL_IHR_ENABLED;
1054 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1057 static void handle_irq_transmit_status(struct b43_wldev *dev)
1061 struct b43_txstatus stat;
1064 v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1065 if (!(v0 & 0x00000001))
1067 v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1069 stat.cookie = (v0 >> 16);
1070 stat.seq = (v1 & 0x0000FFFF);
1071 stat.phy_stat = ((v1 & 0x00FF0000) >> 16);
1072 tmp = (v0 & 0x0000FFFF);
1073 stat.frame_count = ((tmp & 0xF000) >> 12);
1074 stat.rts_count = ((tmp & 0x0F00) >> 8);
1075 stat.supp_reason = ((tmp & 0x001C) >> 2);
1076 stat.pm_indicated = !!(tmp & 0x0080);
1077 stat.intermediate = !!(tmp & 0x0040);
1078 stat.for_ampdu = !!(tmp & 0x0020);
1079 stat.acked = !!(tmp & 0x0002);
1081 b43_handle_txstatus(dev, &stat);
1085 static void drain_txstatus_queue(struct b43_wldev *dev)
1089 if (dev->dev->id.revision < 5)
1091 /* Read all entries from the microcode TXstatus FIFO
1092 * and throw them away.
1095 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1096 if (!(dummy & 0x00000001))
1098 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1102 static u32 b43_jssi_read(struct b43_wldev *dev)
1106 val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A);
1108 val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088);
1113 static void b43_jssi_write(struct b43_wldev *dev, u32 jssi)
1115 b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF));
1116 b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16);
1119 static void b43_generate_noise_sample(struct b43_wldev *dev)
1121 b43_jssi_write(dev, 0x7F7F7F7F);
1122 b43_write32(dev, B43_MMIO_MACCMD,
1123 b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE);
1124 B43_WARN_ON(dev->noisecalc.channel_at_start != dev->phy.channel);
1127 static void b43_calculate_link_quality(struct b43_wldev *dev)
1129 /* Top half of Link Quality calculation. */
1131 if (dev->noisecalc.calculation_running)
1133 dev->noisecalc.channel_at_start = dev->phy.channel;
1134 dev->noisecalc.calculation_running = 1;
1135 dev->noisecalc.nr_samples = 0;
1137 b43_generate_noise_sample(dev);
1140 static void handle_irq_noise(struct b43_wldev *dev)
1142 struct b43_phy *phy = &dev->phy;
1148 /* Bottom half of Link Quality calculation. */
1150 B43_WARN_ON(!dev->noisecalc.calculation_running);
1151 if (dev->noisecalc.channel_at_start != phy->channel)
1152 goto drop_calculation;
1153 *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev));
1154 if (noise[0] == 0x7F || noise[1] == 0x7F ||
1155 noise[2] == 0x7F || noise[3] == 0x7F)
1158 /* Get the noise samples. */
1159 B43_WARN_ON(dev->noisecalc.nr_samples >= 8);
1160 i = dev->noisecalc.nr_samples;
1161 noise[0] = limit_value(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1162 noise[1] = limit_value(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1163 noise[2] = limit_value(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1164 noise[3] = limit_value(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1165 dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]];
1166 dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]];
1167 dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]];
1168 dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]];
1169 dev->noisecalc.nr_samples++;
1170 if (dev->noisecalc.nr_samples == 8) {
1171 /* Calculate the Link Quality by the noise samples. */
1173 for (i = 0; i < 8; i++) {
1174 for (j = 0; j < 4; j++)
1175 average += dev->noisecalc.samples[i][j];
1181 tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C);
1182 tmp = (tmp / 128) & 0x1F;
1192 dev->stats.link_noise = average;
1194 dev->noisecalc.calculation_running = 0;
1198 b43_generate_noise_sample(dev);
1201 static void handle_irq_tbtt_indication(struct b43_wldev *dev)
1203 if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) {
1206 if (1 /*FIXME: the last PSpoll frame was sent successfully */ )
1207 b43_power_saving_ctl_bits(dev, 0);
1209 if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS))
1213 static void handle_irq_atim_end(struct b43_wldev *dev)
1215 if (dev->dfq_valid) {
1216 b43_write32(dev, B43_MMIO_MACCMD,
1217 b43_read32(dev, B43_MMIO_MACCMD)
1218 | B43_MACCMD_DFQ_VALID);
1223 static void handle_irq_pmq(struct b43_wldev *dev)
1230 tmp = b43_read32(dev, B43_MMIO_PS_STATUS);
1231 if (!(tmp & 0x00000008))
1234 /* 16bit write is odd, but correct. */
1235 b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002);
1238 static void b43_write_template_common(struct b43_wldev *dev,
1239 const u8 * data, u16 size,
1241 u16 shm_size_offset, u8 rate)
1244 struct b43_plcp_hdr4 plcp;
1247 b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
1248 b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data));
1249 ram_offset += sizeof(u32);
1250 /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet.
1251 * So leave the first two bytes of the next write blank.
1253 tmp = (u32) (data[0]) << 16;
1254 tmp |= (u32) (data[1]) << 24;
1255 b43_ram_write(dev, ram_offset, tmp);
1256 ram_offset += sizeof(u32);
1257 for (i = 2; i < size; i += sizeof(u32)) {
1258 tmp = (u32) (data[i + 0]);
1260 tmp |= (u32) (data[i + 1]) << 8;
1262 tmp |= (u32) (data[i + 2]) << 16;
1264 tmp |= (u32) (data[i + 3]) << 24;
1265 b43_ram_write(dev, ram_offset + i - 2, tmp);
1267 b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset,
1268 size + sizeof(struct b43_plcp_hdr6));
1271 static void b43_write_beacon_template(struct b43_wldev *dev,
1273 u16 shm_size_offset, u8 rate)
1275 unsigned int i, len, variable_len;
1276 const struct ieee80211_mgmt *bcn;
1280 bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data);
1281 len = min((size_t) dev->wl->current_beacon->len,
1282 0x200 - sizeof(struct b43_plcp_hdr6));
1284 b43_write_template_common(dev, (const u8 *)bcn,
1285 len, ram_offset, shm_size_offset, rate);
1287 /* Find the position of the TIM and the DTIM_period value
1288 * and write them to SHM. */
1289 ie = bcn->u.beacon.variable;
1290 variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
1291 for (i = 0; i < variable_len - 2; ) {
1292 uint8_t ie_id, ie_len;
1299 /* This is the TIM Information Element */
1301 /* Check whether the ie_len is in the beacon data range. */
1302 if (variable_len < ie_len + 2 + i)
1304 /* A valid TIM is at least 4 bytes long. */
1309 tim_position = sizeof(struct b43_plcp_hdr6);
1310 tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable);
1313 dtim_period = ie[i + 3];
1315 b43_shm_write16(dev, B43_SHM_SHARED,
1316 B43_SHM_SH_TIMBPOS, tim_position);
1317 b43_shm_write16(dev, B43_SHM_SHARED,
1318 B43_SHM_SH_DTIMPER, dtim_period);
1324 b43warn(dev->wl, "Did not find a valid TIM IE in "
1325 "the beacon template packet. AP or IBSS operation "
1326 "may be broken.\n");
1330 static void b43_write_probe_resp_plcp(struct b43_wldev *dev,
1331 u16 shm_offset, u16 size,
1332 struct ieee80211_rate *rate)
1334 struct b43_plcp_hdr4 plcp;
1339 b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate->hw_value);
1340 dur = ieee80211_generic_frame_duration(dev->wl->hw,
1343 /* Write PLCP in two parts and timing for packet transfer */
1344 tmp = le32_to_cpu(plcp.data);
1345 b43_shm_write16(dev, B43_SHM_SHARED, shm_offset, tmp & 0xFFFF);
1346 b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 2, tmp >> 16);
1347 b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 6, le16_to_cpu(dur));
1350 /* Instead of using custom probe response template, this function
1351 * just patches custom beacon template by:
1352 * 1) Changing packet type
1353 * 2) Patching duration field
1356 static const u8 * b43_generate_probe_resp(struct b43_wldev *dev,
1358 struct ieee80211_rate *rate)
1362 u16 src_size, elem_size, src_pos, dest_pos;
1364 struct ieee80211_hdr *hdr;
1367 src_size = dev->wl->current_beacon->len;
1368 src_data = (const u8 *)dev->wl->current_beacon->data;
1370 /* Get the start offset of the variable IEs in the packet. */
1371 ie_start = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
1372 B43_WARN_ON(ie_start != offsetof(struct ieee80211_mgmt, u.beacon.variable));
1374 if (B43_WARN_ON(src_size < ie_start))
1377 dest_data = kmalloc(src_size, GFP_ATOMIC);
1378 if (unlikely(!dest_data))
1381 /* Copy the static data and all Information Elements, except the TIM. */
1382 memcpy(dest_data, src_data, ie_start);
1384 dest_pos = ie_start;
1385 for ( ; src_pos < src_size - 2; src_pos += elem_size) {
1386 elem_size = src_data[src_pos + 1] + 2;
1387 if (src_data[src_pos] == 5) {
1388 /* This is the TIM. */
1391 memcpy(dest_data + dest_pos, src_data + src_pos,
1393 dest_pos += elem_size;
1395 *dest_size = dest_pos;
1396 hdr = (struct ieee80211_hdr *)dest_data;
1398 /* Set the frame control. */
1399 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1400 IEEE80211_STYPE_PROBE_RESP);
1401 dur = ieee80211_generic_frame_duration(dev->wl->hw,
1402 dev->wl->vif, *dest_size,
1404 hdr->duration_id = dur;
1409 static void b43_write_probe_resp_template(struct b43_wldev *dev,
1411 u16 shm_size_offset,
1412 struct ieee80211_rate *rate)
1414 const u8 *probe_resp_data;
1417 size = dev->wl->current_beacon->len;
1418 probe_resp_data = b43_generate_probe_resp(dev, &size, rate);
1419 if (unlikely(!probe_resp_data))
1422 /* Looks like PLCP headers plus packet timings are stored for
1423 * all possible basic rates
1425 b43_write_probe_resp_plcp(dev, 0x31A, size, &b43_b_ratetable[0]);
1426 b43_write_probe_resp_plcp(dev, 0x32C, size, &b43_b_ratetable[1]);
1427 b43_write_probe_resp_plcp(dev, 0x33E, size, &b43_b_ratetable[2]);
1428 b43_write_probe_resp_plcp(dev, 0x350, size, &b43_b_ratetable[3]);
1430 size = min((size_t) size, 0x200 - sizeof(struct b43_plcp_hdr6));
1431 b43_write_template_common(dev, probe_resp_data,
1432 size, ram_offset, shm_size_offset,
1434 kfree(probe_resp_data);
1437 /* Asynchronously update the packet templates in template RAM.
1438 * Locking: Requires wl->irq_lock to be locked. */
1439 static void b43_update_templates(struct b43_wl *wl, struct sk_buff *beacon)
1441 /* This is the top half of the ansynchronous beacon update.
1442 * The bottom half is the beacon IRQ.
1443 * Beacon update must be asynchronous to avoid sending an
1444 * invalid beacon. This can happen for example, if the firmware
1445 * transmits a beacon while we are updating it. */
1447 if (wl->current_beacon)
1448 dev_kfree_skb_any(wl->current_beacon);
1449 wl->current_beacon = beacon;
1450 wl->beacon0_uploaded = 0;
1451 wl->beacon1_uploaded = 0;
1454 static void b43_set_ssid(struct b43_wldev *dev, const u8 * ssid, u8 ssid_len)
1459 len = min((u16) ssid_len, (u16) 0x100);
1460 for (i = 0; i < len; i += sizeof(u32)) {
1461 tmp = (u32) (ssid[i + 0]);
1463 tmp |= (u32) (ssid[i + 1]) << 8;
1465 tmp |= (u32) (ssid[i + 2]) << 16;
1467 tmp |= (u32) (ssid[i + 3]) << 24;
1468 b43_shm_write32(dev, B43_SHM_SHARED, 0x380 + i, tmp);
1470 b43_shm_write16(dev, B43_SHM_SHARED, 0x48, len);
1473 static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int)
1476 if (dev->dev->id.revision >= 3) {
1477 b43_write32(dev, 0x188, (beacon_int << 16));
1479 b43_write16(dev, 0x606, (beacon_int >> 6));
1480 b43_write16(dev, 0x610, beacon_int);
1482 b43_time_unlock(dev);
1485 static void handle_irq_beacon(struct b43_wldev *dev)
1487 struct b43_wl *wl = dev->wl;
1490 if (!b43_is_mode(wl, IEEE80211_IF_TYPE_AP))
1493 /* This is the bottom half of the asynchronous beacon update. */
1495 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1496 if (!(cmd & B43_MACCMD_BEACON0_VALID)) {
1497 if (!wl->beacon0_uploaded) {
1498 b43_write_beacon_template(dev, 0x68, 0x18,
1500 b43_write_probe_resp_template(dev, 0x268, 0x4A,
1501 &__b43_ratetable[3]);
1502 wl->beacon0_uploaded = 1;
1504 cmd |= B43_MACCMD_BEACON0_VALID;
1506 if (!(cmd & B43_MACCMD_BEACON1_VALID)) {
1507 if (!wl->beacon1_uploaded) {
1508 b43_write_beacon_template(dev, 0x468, 0x1A,
1510 wl->beacon1_uploaded = 1;
1512 cmd |= B43_MACCMD_BEACON1_VALID;
1514 b43_write32(dev, B43_MMIO_MACCMD, cmd);
1517 static void handle_irq_ucode_debug(struct b43_wldev *dev)
1522 /* Interrupt handler bottom-half */
1523 static void b43_interrupt_tasklet(struct b43_wldev *dev)
1526 u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
1527 u32 merged_dma_reason = 0;
1529 unsigned long flags;
1531 spin_lock_irqsave(&dev->wl->irq_lock, flags);
1533 B43_WARN_ON(b43_status(dev) != B43_STAT_STARTED);
1535 reason = dev->irq_reason;
1536 for (i = 0; i < ARRAY_SIZE(dma_reason); i++) {
1537 dma_reason[i] = dev->dma_reason[i];
1538 merged_dma_reason |= dma_reason[i];
1541 if (unlikely(reason & B43_IRQ_MAC_TXERR))
1542 b43err(dev->wl, "MAC transmission error\n");
1544 if (unlikely(reason & B43_IRQ_PHY_TXERR)) {
1545 b43err(dev->wl, "PHY transmission error\n");
1547 if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) {
1548 atomic_set(&dev->phy.txerr_cnt,
1549 B43_PHY_TX_BADNESS_LIMIT);
1550 b43err(dev->wl, "Too many PHY TX errors, "
1551 "restarting the controller\n");
1552 b43_controller_restart(dev, "PHY TX errors");
1556 if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK |
1557 B43_DMAIRQ_NONFATALMASK))) {
1558 if (merged_dma_reason & B43_DMAIRQ_FATALMASK) {
1559 b43err(dev->wl, "Fatal DMA error: "
1560 "0x%08X, 0x%08X, 0x%08X, "
1561 "0x%08X, 0x%08X, 0x%08X\n",
1562 dma_reason[0], dma_reason[1],
1563 dma_reason[2], dma_reason[3],
1564 dma_reason[4], dma_reason[5]);
1565 b43_controller_restart(dev, "DMA error");
1567 spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
1570 if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) {
1571 b43err(dev->wl, "DMA error: "
1572 "0x%08X, 0x%08X, 0x%08X, "
1573 "0x%08X, 0x%08X, 0x%08X\n",
1574 dma_reason[0], dma_reason[1],
1575 dma_reason[2], dma_reason[3],
1576 dma_reason[4], dma_reason[5]);
1580 if (unlikely(reason & B43_IRQ_UCODE_DEBUG))
1581 handle_irq_ucode_debug(dev);
1582 if (reason & B43_IRQ_TBTT_INDI)
1583 handle_irq_tbtt_indication(dev);
1584 if (reason & B43_IRQ_ATIM_END)
1585 handle_irq_atim_end(dev);
1586 if (reason & B43_IRQ_BEACON)
1587 handle_irq_beacon(dev);
1588 if (reason & B43_IRQ_PMQ)
1589 handle_irq_pmq(dev);
1590 if (reason & B43_IRQ_TXFIFO_FLUSH_OK)
1592 if (reason & B43_IRQ_NOISESAMPLE_OK)
1593 handle_irq_noise(dev);
1595 /* Check the DMA reason registers for received data. */
1596 if (dma_reason[0] & B43_DMAIRQ_RX_DONE)
1597 b43_dma_rx(dev->dma.rx_ring);
1598 B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE);
1599 B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE);
1600 B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE);
1601 B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE);
1602 B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE);
1604 if (reason & B43_IRQ_TX_OK)
1605 handle_irq_transmit_status(dev);
1607 b43_interrupt_enable(dev, dev->irq_savedstate);
1609 spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
1612 static void b43_interrupt_ack(struct b43_wldev *dev, u32 reason)
1614 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason);
1616 b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]);
1617 b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]);
1618 b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]);
1619 b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]);
1620 b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]);
1621 b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]);
1624 /* Interrupt handler top-half */
1625 static irqreturn_t b43_interrupt_handler(int irq, void *dev_id)
1627 irqreturn_t ret = IRQ_NONE;
1628 struct b43_wldev *dev = dev_id;
1634 spin_lock(&dev->wl->irq_lock);
1636 if (b43_status(dev) < B43_STAT_STARTED)
1638 reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
1639 if (reason == 0xffffffff) /* shared IRQ */
1642 reason &= b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
1646 dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON)
1648 dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON)
1650 dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON)
1652 dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON)
1654 dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON)
1656 dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON)
1659 b43_interrupt_ack(dev, reason);
1660 /* disable all IRQs. They are enabled again in the bottom half. */
1661 dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL);
1662 /* save the reason code and call our bottom half. */
1663 dev->irq_reason = reason;
1664 tasklet_schedule(&dev->isr_tasklet);
1667 spin_unlock(&dev->wl->irq_lock);
1672 static void do_release_fw(struct b43_firmware_file *fw)
1674 release_firmware(fw->data);
1676 fw->filename = NULL;
1679 static void b43_release_firmware(struct b43_wldev *dev)
1681 do_release_fw(&dev->fw.ucode);
1682 do_release_fw(&dev->fw.pcm);
1683 do_release_fw(&dev->fw.initvals);
1684 do_release_fw(&dev->fw.initvals_band);
1687 static void b43_print_fw_helptext(struct b43_wl *wl, bool error)
1691 text = "You must go to "
1692 "http://linuxwireless.org/en/users/Drivers/b43#devicefirmware "
1693 "and download the latest firmware (version 4).\n";
1700 static int do_request_fw(struct b43_wldev *dev,
1702 struct b43_firmware_file *fw)
1704 char path[sizeof(modparam_fwpostfix) + 32];
1705 const struct firmware *blob;
1706 struct b43_fw_header *hdr;
1711 /* Don't fetch anything. Free possibly cached firmware. */
1716 if (strcmp(fw->filename, name) == 0)
1717 return 0; /* Already have this fw. */
1718 /* Free the cached firmware first. */
1722 snprintf(path, ARRAY_SIZE(path),
1724 modparam_fwpostfix, name);
1725 err = request_firmware(&blob, path, dev->dev->dev);
1727 b43err(dev->wl, "Firmware file \"%s\" not found "
1728 "or load failed.\n", path);
1731 if (blob->size < sizeof(struct b43_fw_header))
1733 hdr = (struct b43_fw_header *)(blob->data);
1734 switch (hdr->type) {
1735 case B43_FW_TYPE_UCODE:
1736 case B43_FW_TYPE_PCM:
1737 size = be32_to_cpu(hdr->size);
1738 if (size != blob->size - sizeof(struct b43_fw_header))
1741 case B43_FW_TYPE_IV:
1750 fw->filename = name;
1755 b43err(dev->wl, "Firmware file \"%s\" format error.\n", path);
1756 release_firmware(blob);
1761 static int b43_request_firmware(struct b43_wldev *dev)
1763 struct b43_firmware *fw = &dev->fw;
1764 const u8 rev = dev->dev->id.revision;
1765 const char *filename;
1770 tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);
1771 if ((rev >= 5) && (rev <= 10))
1772 filename = "ucode5";
1773 else if ((rev >= 11) && (rev <= 12))
1774 filename = "ucode11";
1776 filename = "ucode13";
1779 err = do_request_fw(dev, filename, &fw->ucode);
1784 if ((rev >= 5) && (rev <= 10))
1790 err = do_request_fw(dev, filename, &fw->pcm);
1795 switch (dev->phy.type) {
1797 if ((rev >= 5) && (rev <= 10)) {
1798 if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
1799 filename = "a0g1initvals5";
1801 filename = "a0g0initvals5";
1803 goto err_no_initvals;
1806 if ((rev >= 5) && (rev <= 10))
1807 filename = "b0g0initvals5";
1809 filename = "lp0initvals13";
1811 goto err_no_initvals;
1814 if ((rev >= 11) && (rev <= 12))
1815 filename = "n0initvals11";
1817 goto err_no_initvals;
1820 goto err_no_initvals;
1822 err = do_request_fw(dev, filename, &fw->initvals);
1826 /* Get bandswitch initvals */
1827 switch (dev->phy.type) {
1829 if ((rev >= 5) && (rev <= 10)) {
1830 if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
1831 filename = "a0g1bsinitvals5";
1833 filename = "a0g0bsinitvals5";
1834 } else if (rev >= 11)
1837 goto err_no_initvals;
1840 if ((rev >= 5) && (rev <= 10))
1841 filename = "b0g0bsinitvals5";
1845 goto err_no_initvals;
1848 if ((rev >= 11) && (rev <= 12))
1849 filename = "n0bsinitvals11";
1851 goto err_no_initvals;
1854 goto err_no_initvals;
1856 err = do_request_fw(dev, filename, &fw->initvals_band);
1863 b43_print_fw_helptext(dev->wl, 1);
1868 b43err(dev->wl, "No microcode available for core rev %u\n", rev);
1873 b43err(dev->wl, "No PCM available for core rev %u\n", rev);
1878 b43err(dev->wl, "No Initial Values firmware file for PHY %u, "
1879 "core rev %u\n", dev->phy.type, rev);
1883 b43_release_firmware(dev);
1887 static int b43_upload_microcode(struct b43_wldev *dev)
1889 const size_t hdr_len = sizeof(struct b43_fw_header);
1891 unsigned int i, len;
1892 u16 fwrev, fwpatch, fwdate, fwtime;
1896 /* Jump the microcode PSM to offset 0 */
1897 macctl = b43_read32(dev, B43_MMIO_MACCTL);
1898 B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN);
1899 macctl |= B43_MACCTL_PSM_JMP0;
1900 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1901 /* Zero out all microcode PSM registers and shared memory. */
1902 for (i = 0; i < 64; i++)
1903 b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0);
1904 for (i = 0; i < 4096; i += 2)
1905 b43_shm_write16(dev, B43_SHM_SHARED, i, 0);
1907 /* Upload Microcode. */
1908 data = (__be32 *) (dev->fw.ucode.data->data + hdr_len);
1909 len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32);
1910 b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000);
1911 for (i = 0; i < len; i++) {
1912 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
1916 if (dev->fw.pcm.data) {
1917 /* Upload PCM data. */
1918 data = (__be32 *) (dev->fw.pcm.data->data + hdr_len);
1919 len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32);
1920 b43_shm_control_word(dev, B43_SHM_HW, 0x01EA);
1921 b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000);
1922 /* No need for autoinc bit in SHM_HW */
1923 b43_shm_control_word(dev, B43_SHM_HW, 0x01EB);
1924 for (i = 0; i < len; i++) {
1925 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
1930 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL);
1932 /* Start the microcode PSM */
1933 macctl = b43_read32(dev, B43_MMIO_MACCTL);
1934 macctl &= ~B43_MACCTL_PSM_JMP0;
1935 macctl |= B43_MACCTL_PSM_RUN;
1936 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1938 /* Wait for the microcode to load and respond */
1941 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
1942 if (tmp == B43_IRQ_MAC_SUSPENDED)
1946 b43err(dev->wl, "Microcode not responding\n");
1947 b43_print_fw_helptext(dev->wl, 1);
1951 msleep_interruptible(50);
1952 if (signal_pending(current)) {
1957 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */
1959 /* Get and check the revisions. */
1960 fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV);
1961 fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH);
1962 fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE);
1963 fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME);
1965 if (fwrev <= 0x128) {
1966 b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from "
1967 "binary drivers older than version 4.x is unsupported. "
1968 "You must upgrade your firmware files.\n");
1969 b43_print_fw_helptext(dev->wl, 1);
1973 b43info(dev->wl, "Loading firmware version %u.%u "
1974 "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n",
1976 (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
1977 (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F);
1979 dev->fw.rev = fwrev;
1980 dev->fw.patch = fwpatch;
1982 if (b43_is_old_txhdr_format(dev)) {
1983 b43warn(dev->wl, "You are using an old firmware image. "
1984 "Support for old firmware will be removed in July 2008.\n");
1985 b43_print_fw_helptext(dev->wl, 0);
1991 macctl = b43_read32(dev, B43_MMIO_MACCTL);
1992 macctl &= ~B43_MACCTL_PSM_RUN;
1993 macctl |= B43_MACCTL_PSM_JMP0;
1994 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1999 static int b43_write_initvals(struct b43_wldev *dev,
2000 const struct b43_iv *ivals,
2004 const struct b43_iv *iv;
2009 BUILD_BUG_ON(sizeof(struct b43_iv) != 6);
2011 for (i = 0; i < count; i++) {
2012 if (array_size < sizeof(iv->offset_size))
2014 array_size -= sizeof(iv->offset_size);
2015 offset = be16_to_cpu(iv->offset_size);
2016 bit32 = !!(offset & B43_IV_32BIT);
2017 offset &= B43_IV_OFFSET_MASK;
2018 if (offset >= 0x1000)
2023 if (array_size < sizeof(iv->data.d32))
2025 array_size -= sizeof(iv->data.d32);
2027 value = be32_to_cpu(get_unaligned(&iv->data.d32));
2028 b43_write32(dev, offset, value);
2030 iv = (const struct b43_iv *)((const uint8_t *)iv +
2036 if (array_size < sizeof(iv->data.d16))
2038 array_size -= sizeof(iv->data.d16);
2040 value = be16_to_cpu(iv->data.d16);
2041 b43_write16(dev, offset, value);
2043 iv = (const struct b43_iv *)((const uint8_t *)iv +
2054 b43err(dev->wl, "Initial Values Firmware file-format error.\n");
2055 b43_print_fw_helptext(dev->wl, 1);
2060 static int b43_upload_initvals(struct b43_wldev *dev)
2062 const size_t hdr_len = sizeof(struct b43_fw_header);
2063 const struct b43_fw_header *hdr;
2064 struct b43_firmware *fw = &dev->fw;
2065 const struct b43_iv *ivals;
2069 hdr = (const struct b43_fw_header *)(fw->initvals.data->data);
2070 ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len);
2071 count = be32_to_cpu(hdr->size);
2072 err = b43_write_initvals(dev, ivals, count,
2073 fw->initvals.data->size - hdr_len);
2076 if (fw->initvals_band.data) {
2077 hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data);
2078 ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len);
2079 count = be32_to_cpu(hdr->size);
2080 err = b43_write_initvals(dev, ivals, count,
2081 fw->initvals_band.data->size - hdr_len);
2090 /* Initialize the GPIOs
2091 * http://bcm-specs.sipsolutions.net/GPIO
2093 static int b43_gpio_init(struct b43_wldev *dev)
2095 struct ssb_bus *bus = dev->dev->bus;
2096 struct ssb_device *gpiodev, *pcidev = NULL;
2099 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2100 & ~B43_MACCTL_GPOUTSMSK);
2102 b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK)
2107 if (dev->dev->bus->chip_id == 0x4301) {
2111 if (0 /* FIXME: conditional unknown */ ) {
2112 b43_write16(dev, B43_MMIO_GPIO_MASK,
2113 b43_read16(dev, B43_MMIO_GPIO_MASK)
2118 if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL) {
2119 b43_write16(dev, B43_MMIO_GPIO_MASK,
2120 b43_read16(dev, B43_MMIO_GPIO_MASK)
2125 if (dev->dev->id.revision >= 2)
2126 mask |= 0x0010; /* FIXME: This is redundant. */
2128 #ifdef CONFIG_SSB_DRIVER_PCICORE
2129 pcidev = bus->pcicore.dev;
2131 gpiodev = bus->chipco.dev ? : pcidev;
2134 ssb_write32(gpiodev, B43_GPIO_CONTROL,
2135 (ssb_read32(gpiodev, B43_GPIO_CONTROL)
2141 /* Turn off all GPIO stuff. Call this on module unload, for example. */
2142 static void b43_gpio_cleanup(struct b43_wldev *dev)
2144 struct ssb_bus *bus = dev->dev->bus;
2145 struct ssb_device *gpiodev, *pcidev = NULL;
2147 #ifdef CONFIG_SSB_DRIVER_PCICORE
2148 pcidev = bus->pcicore.dev;
2150 gpiodev = bus->chipco.dev ? : pcidev;
2153 ssb_write32(gpiodev, B43_GPIO_CONTROL, 0);
2156 /* http://bcm-specs.sipsolutions.net/EnableMac */
2157 static void b43_mac_enable(struct b43_wldev *dev)
2159 dev->mac_suspended--;
2160 B43_WARN_ON(dev->mac_suspended < 0);
2161 B43_WARN_ON(irqs_disabled());
2162 if (dev->mac_suspended == 0) {
2163 b43_write32(dev, B43_MMIO_MACCTL,
2164 b43_read32(dev, B43_MMIO_MACCTL)
2165 | B43_MACCTL_ENABLED);
2166 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON,
2167 B43_IRQ_MAC_SUSPENDED);
2169 b43_read32(dev, B43_MMIO_MACCTL);
2170 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2171 b43_power_saving_ctl_bits(dev, 0);
2173 /* Re-enable IRQs. */
2174 spin_lock_irq(&dev->wl->irq_lock);
2175 b43_interrupt_enable(dev, dev->irq_savedstate);
2176 spin_unlock_irq(&dev->wl->irq_lock);
2180 /* http://bcm-specs.sipsolutions.net/SuspendMAC */
2181 static void b43_mac_suspend(struct b43_wldev *dev)
2187 B43_WARN_ON(irqs_disabled());
2188 B43_WARN_ON(dev->mac_suspended < 0);
2190 if (dev->mac_suspended == 0) {
2191 /* Mask IRQs before suspending MAC. Otherwise
2192 * the MAC stays busy and won't suspend. */
2193 spin_lock_irq(&dev->wl->irq_lock);
2194 tmp = b43_interrupt_disable(dev, B43_IRQ_ALL);
2195 spin_unlock_irq(&dev->wl->irq_lock);
2196 b43_synchronize_irq(dev);
2197 dev->irq_savedstate = tmp;
2199 b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
2200 b43_write32(dev, B43_MMIO_MACCTL,
2201 b43_read32(dev, B43_MMIO_MACCTL)
2202 & ~B43_MACCTL_ENABLED);
2203 /* force pci to flush the write */
2204 b43_read32(dev, B43_MMIO_MACCTL);
2205 for (i = 40; i; i--) {
2206 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2207 if (tmp & B43_IRQ_MAC_SUSPENDED)
2211 b43err(dev->wl, "MAC suspend failed\n");
2214 dev->mac_suspended++;
2217 static void b43_adjust_opmode(struct b43_wldev *dev)
2219 struct b43_wl *wl = dev->wl;
2223 ctl = b43_read32(dev, B43_MMIO_MACCTL);
2224 /* Reset status to STA infrastructure mode. */
2225 ctl &= ~B43_MACCTL_AP;
2226 ctl &= ~B43_MACCTL_KEEP_CTL;
2227 ctl &= ~B43_MACCTL_KEEP_BADPLCP;
2228 ctl &= ~B43_MACCTL_KEEP_BAD;
2229 ctl &= ~B43_MACCTL_PROMISC;
2230 ctl &= ~B43_MACCTL_BEACPROMISC;
2231 ctl |= B43_MACCTL_INFRA;
2233 if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP))
2234 ctl |= B43_MACCTL_AP;
2235 else if (b43_is_mode(wl, IEEE80211_IF_TYPE_IBSS))
2236 ctl &= ~B43_MACCTL_INFRA;
2238 if (wl->filter_flags & FIF_CONTROL)
2239 ctl |= B43_MACCTL_KEEP_CTL;
2240 if (wl->filter_flags & FIF_FCSFAIL)
2241 ctl |= B43_MACCTL_KEEP_BAD;
2242 if (wl->filter_flags & FIF_PLCPFAIL)
2243 ctl |= B43_MACCTL_KEEP_BADPLCP;
2244 if (wl->filter_flags & FIF_PROMISC_IN_BSS)
2245 ctl |= B43_MACCTL_PROMISC;
2246 if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
2247 ctl |= B43_MACCTL_BEACPROMISC;
2249 /* Workaround: On old hardware the HW-MAC-address-filter
2250 * doesn't work properly, so always run promisc in filter
2251 * it in software. */
2252 if (dev->dev->id.revision <= 4)
2253 ctl |= B43_MACCTL_PROMISC;
2255 b43_write32(dev, B43_MMIO_MACCTL, ctl);
2258 if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) {
2259 if (dev->dev->bus->chip_id == 0x4306 &&
2260 dev->dev->bus->chip_rev == 3)
2265 b43_write16(dev, 0x612, cfp_pretbtt);
2268 static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm)
2274 offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
2277 offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
2279 b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20,
2280 b43_shm_read16(dev, B43_SHM_SHARED, offset));
2283 static void b43_rate_memory_init(struct b43_wldev *dev)
2285 switch (dev->phy.type) {
2289 b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1);
2290 b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1);
2291 b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1);
2292 b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1);
2293 b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1);
2294 b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1);
2295 b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1);
2296 if (dev->phy.type == B43_PHYTYPE_A)
2300 b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0);
2301 b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0);
2302 b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0);
2303 b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0);
2310 /* Set the TX-Antenna for management frames sent by firmware. */
2311 static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna)
2318 ant |= B43_TXH_PHY_ANT0;
2321 ant |= B43_TXH_PHY_ANT1;
2324 ant |= B43_TXH_PHY_ANT2;
2327 ant |= B43_TXH_PHY_ANT3;
2329 case B43_ANTENNA_AUTO:
2330 ant |= B43_TXH_PHY_ANT01AUTO;
2336 /* FIXME We also need to set the other flags of the PHY control field somewhere. */
2339 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL);
2340 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
2341 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, tmp);
2343 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL);
2344 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
2345 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp);
2346 /* For Probe Resposes */
2347 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL);
2348 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
2349 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp);
2352 /* This is the opposite of b43_chip_init() */
2353 static void b43_chip_exit(struct b43_wldev *dev)
2355 b43_radio_turn_off(dev, 1);
2356 b43_gpio_cleanup(dev);
2357 /* firmware is released later */
2360 /* Initialize the chip
2361 * http://bcm-specs.sipsolutions.net/ChipInit
2363 static int b43_chip_init(struct b43_wldev *dev)
2365 struct b43_phy *phy = &dev->phy;
2367 u32 value32, macctl;
2370 /* Initialize the MAC control */
2371 macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED;
2373 macctl |= B43_MACCTL_GMODE;
2374 macctl |= B43_MACCTL_INFRA;
2375 b43_write32(dev, B43_MMIO_MACCTL, macctl);
2377 err = b43_request_firmware(dev);
2380 err = b43_upload_microcode(dev);
2382 goto out; /* firmware is released later */
2384 err = b43_gpio_init(dev);
2386 goto out; /* firmware is released later */
2388 err = b43_upload_initvals(dev);
2390 goto err_gpio_clean;
2391 b43_radio_turn_on(dev);
2393 b43_write16(dev, 0x03E6, 0x0000);
2394 err = b43_phy_init(dev);
2398 /* Select initial Interference Mitigation. */
2399 tmp = phy->interfmode;
2400 phy->interfmode = B43_INTERFMODE_NONE;
2401 b43_radio_set_interference_mitigation(dev, tmp);
2403 b43_set_rx_antenna(dev, B43_ANTENNA_DEFAULT);
2404 b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT);
2406 if (phy->type == B43_PHYTYPE_B) {
2407 value16 = b43_read16(dev, 0x005E);
2409 b43_write16(dev, 0x005E, value16);
2411 b43_write32(dev, 0x0100, 0x01000000);
2412 if (dev->dev->id.revision < 5)
2413 b43_write32(dev, 0x010C, 0x01000000);
2415 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2416 & ~B43_MACCTL_INFRA);
2417 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2418 | B43_MACCTL_INFRA);
2420 /* Probe Response Timeout value */
2421 /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
2422 b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000);
2424 /* Initially set the wireless operation mode. */
2425 b43_adjust_opmode(dev);
2427 if (dev->dev->id.revision < 3) {
2428 b43_write16(dev, 0x060E, 0x0000);
2429 b43_write16(dev, 0x0610, 0x8000);
2430 b43_write16(dev, 0x0604, 0x0000);
2431 b43_write16(dev, 0x0606, 0x0200);
2433 b43_write32(dev, 0x0188, 0x80000000);
2434 b43_write32(dev, 0x018C, 0x02000000);
2436 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000);
2437 b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
2438 b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
2439 b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
2440 b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
2441 b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
2442 b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
2444 value32 = ssb_read32(dev->dev, SSB_TMSLOW);
2445 value32 |= 0x00100000;
2446 ssb_write32(dev->dev, SSB_TMSLOW, value32);
2448 b43_write16(dev, B43_MMIO_POWERUP_DELAY,
2449 dev->dev->bus->chipco.fast_pwrup_delay);
2452 b43dbg(dev->wl, "Chip initialized\n");
2457 b43_radio_turn_off(dev, 1);
2459 b43_gpio_cleanup(dev);
2463 static void b43_periodic_every120sec(struct b43_wldev *dev)
2465 struct b43_phy *phy = &dev->phy;
2467 if (phy->type != B43_PHYTYPE_G || phy->rev < 2)
2470 b43_mac_suspend(dev);
2471 b43_lo_g_measure(dev);
2472 b43_mac_enable(dev);
2473 if (b43_has_hardware_pctl(phy))
2474 b43_lo_g_ctl_mark_all_unused(dev);
2477 static void b43_periodic_every60sec(struct b43_wldev *dev)
2479 struct b43_phy *phy = &dev->phy;
2481 if (phy->type != B43_PHYTYPE_G)
2483 if (!b43_has_hardware_pctl(phy))
2484 b43_lo_g_ctl_mark_all_unused(dev);
2485 if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_RSSI) {
2486 b43_mac_suspend(dev);
2487 b43_calc_nrssi_slope(dev);
2488 if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 8)) {
2489 u8 old_chan = phy->channel;
2491 /* VCO Calibration */
2493 b43_radio_selectchannel(dev, 1, 0);
2495 b43_radio_selectchannel(dev, 13, 0);
2496 b43_radio_selectchannel(dev, old_chan, 0);
2498 b43_mac_enable(dev);
2502 static void b43_periodic_every30sec(struct b43_wldev *dev)
2504 /* Update device statistics. */
2505 b43_calculate_link_quality(dev);
2508 static void b43_periodic_every15sec(struct b43_wldev *dev)
2510 struct b43_phy *phy = &dev->phy;
2512 if (phy->type == B43_PHYTYPE_G) {
2513 //TODO: update_aci_moving_average
2514 if (phy->aci_enable && phy->aci_wlan_automatic) {
2515 b43_mac_suspend(dev);
2516 if (!phy->aci_enable && 1 /*TODO: not scanning? */ ) {
2517 if (0 /*TODO: bunch of conditions */ ) {
2518 b43_radio_set_interference_mitigation
2519 (dev, B43_INTERFMODE_MANUALWLAN);
2521 } else if (1 /*TODO*/) {
2523 if ((aci_average > 1000) && !(b43_radio_aci_scan(dev))) {
2524 b43_radio_set_interference_mitigation(dev,
2525 B43_INTERFMODE_NONE);
2529 b43_mac_enable(dev);
2530 } else if (phy->interfmode == B43_INTERFMODE_NONWLAN &&
2532 //TODO: implement rev1 workaround
2535 b43_phy_xmitpower(dev); //FIXME: unless scanning?
2536 //TODO for APHY (temperature?)
2538 atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
2542 static void do_periodic_work(struct b43_wldev *dev)
2546 state = dev->periodic_state;
2548 b43_periodic_every120sec(dev);
2550 b43_periodic_every60sec(dev);
2552 b43_periodic_every30sec(dev);
2553 b43_periodic_every15sec(dev);
2556 /* Periodic work locking policy:
2557 * The whole periodic work handler is protected by
2558 * wl->mutex. If another lock is needed somewhere in the
2559 * pwork callchain, it's aquired in-place, where it's needed.
2561 static void b43_periodic_work_handler(struct work_struct *work)
2563 struct b43_wldev *dev = container_of(work, struct b43_wldev,
2564 periodic_work.work);
2565 struct b43_wl *wl = dev->wl;
2566 unsigned long delay;
2568 mutex_lock(&wl->mutex);
2570 if (unlikely(b43_status(dev) != B43_STAT_STARTED))
2572 if (b43_debug(dev, B43_DBG_PWORK_STOP))
2575 do_periodic_work(dev);
2577 dev->periodic_state++;
2579 if (b43_debug(dev, B43_DBG_PWORK_FAST))
2580 delay = msecs_to_jiffies(50);
2582 delay = round_jiffies_relative(HZ * 15);
2583 queue_delayed_work(wl->hw->workqueue, &dev->periodic_work, delay);
2585 mutex_unlock(&wl->mutex);
2588 static void b43_periodic_tasks_setup(struct b43_wldev *dev)
2590 struct delayed_work *work = &dev->periodic_work;
2592 dev->periodic_state = 0;
2593 INIT_DELAYED_WORK(work, b43_periodic_work_handler);
2594 queue_delayed_work(dev->wl->hw->workqueue, work, 0);
2597 /* Check if communication with the device works correctly. */
2598 static int b43_validate_chipaccess(struct b43_wldev *dev)
2602 backup = b43_shm_read32(dev, B43_SHM_SHARED, 0);
2604 /* Check for read/write and endianness problems. */
2605 b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55);
2606 if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55)
2608 b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA);
2609 if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA)
2612 b43_shm_write32(dev, B43_SHM_SHARED, 0, backup);
2614 if ((dev->dev->id.revision >= 3) && (dev->dev->id.revision <= 10)) {
2615 /* The 32bit register shadows the two 16bit registers
2616 * with update sideeffects. Validate this. */
2617 b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA);
2618 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB);
2619 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB)
2621 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC)
2624 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0);
2626 v = b43_read32(dev, B43_MMIO_MACCTL);
2627 v |= B43_MACCTL_GMODE;
2628 if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED))
2633 b43err(dev->wl, "Failed to validate the chipaccess\n");
2637 static void b43_security_init(struct b43_wldev *dev)
2639 dev->max_nr_keys = (dev->dev->id.revision >= 5) ? 58 : 20;
2640 B43_WARN_ON(dev->max_nr_keys > ARRAY_SIZE(dev->key));
2641 dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP);
2642 /* KTP is a word address, but we address SHM bytewise.
2643 * So multiply by two.
2646 if (dev->dev->id.revision >= 5) {
2647 /* Number of RCMTA address slots */
2648 b43_write16(dev, B43_MMIO_RCMTA_COUNT, dev->max_nr_keys - 8);
2650 b43_clear_keys(dev);
2653 static int b43_rng_read(struct hwrng *rng, u32 * data)
2655 struct b43_wl *wl = (struct b43_wl *)rng->priv;
2656 unsigned long flags;
2658 /* Don't take wl->mutex here, as it could deadlock with
2659 * hwrng internal locking. It's not needed to take
2660 * wl->mutex here, anyway. */
2662 spin_lock_irqsave(&wl->irq_lock, flags);
2663 *data = b43_read16(wl->current_dev, B43_MMIO_RNG);
2664 spin_unlock_irqrestore(&wl->irq_lock, flags);
2666 return (sizeof(u16));
2669 static void b43_rng_exit(struct b43_wl *wl, bool suspended)
2671 if (wl->rng_initialized)
2672 __hwrng_unregister(&wl->rng, suspended);
2675 static int b43_rng_init(struct b43_wl *wl)
2679 snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name),
2680 "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy));
2681 wl->rng.name = wl->rng_name;
2682 wl->rng.data_read = b43_rng_read;
2683 wl->rng.priv = (unsigned long)wl;
2684 wl->rng_initialized = 1;
2685 err = hwrng_register(&wl->rng);
2687 wl->rng_initialized = 0;
2688 b43err(wl, "Failed to register the random "
2689 "number generator (%d)\n", err);
2695 static int b43_op_tx(struct ieee80211_hw *hw,
2696 struct sk_buff *skb,
2697 struct ieee80211_tx_control *ctl)
2699 struct b43_wl *wl = hw_to_b43_wl(hw);
2700 struct b43_wldev *dev = wl->current_dev;
2705 if (unlikely(b43_status(dev) < B43_STAT_STARTED))
2707 /* DMA-TX is done without a global lock. */
2708 err = b43_dma_tx(dev, skb, ctl);
2711 return NETDEV_TX_BUSY;
2712 return NETDEV_TX_OK;
2715 /* Locking: wl->irq_lock */
2716 static void b43_qos_params_upload(struct b43_wldev *dev,
2717 const struct ieee80211_tx_queue_params *p,
2720 u16 params[B43_NR_QOSPARAMS];
2721 int cw_min, cw_max, aifs, bslots, tmp;
2724 const u16 aCWmin = 0x0001;
2725 const u16 aCWmax = 0x03FF;
2727 /* Calculate the default values for the parameters, if needed. */
2728 switch (shm_offset) {
2730 aifs = (p->aifs == -1) ? 2 : p->aifs;
2731 cw_min = (p->cw_min == 0) ? ((aCWmin + 1) / 4 - 1) : p->cw_min;
2732 cw_max = (p->cw_max == 0) ? ((aCWmin + 1) / 2 - 1) : p->cw_max;
2735 aifs = (p->aifs == -1) ? 2 : p->aifs;
2736 cw_min = (p->cw_min == 0) ? ((aCWmin + 1) / 2 - 1) : p->cw_min;
2737 cw_max = (p->cw_max == 0) ? aCWmin : p->cw_max;
2739 case B43_QOS_BESTEFFORT:
2740 aifs = (p->aifs == -1) ? 3 : p->aifs;
2741 cw_min = (p->cw_min == 0) ? aCWmin : p->cw_min;
2742 cw_max = (p->cw_max == 0) ? aCWmax : p->cw_max;
2744 case B43_QOS_BACKGROUND:
2745 aifs = (p->aifs == -1) ? 7 : p->aifs;
2746 cw_min = (p->cw_min == 0) ? aCWmin : p->cw_min;
2747 cw_max = (p->cw_max == 0) ? aCWmax : p->cw_max;
2757 bslots = b43_read16(dev, B43_MMIO_RNG) % cw_min;
2759 memset(¶ms, 0, sizeof(params));
2761 params[B43_QOSPARAM_TXOP] = p->txop * 32;
2762 params[B43_QOSPARAM_CWMIN] = cw_min;
2763 params[B43_QOSPARAM_CWMAX] = cw_max;
2764 params[B43_QOSPARAM_CWCUR] = cw_min;
2765 params[B43_QOSPARAM_AIFS] = aifs;
2766 params[B43_QOSPARAM_BSLOTS] = bslots;
2767 params[B43_QOSPARAM_REGGAP] = bslots + aifs;
2769 for (i = 0; i < ARRAY_SIZE(params); i++) {
2770 if (i == B43_QOSPARAM_STATUS) {
2771 tmp = b43_shm_read16(dev, B43_SHM_SHARED,
2772 shm_offset + (i * 2));
2773 /* Mark the parameters as updated. */
2775 b43_shm_write16(dev, B43_SHM_SHARED,
2776 shm_offset + (i * 2),
2779 b43_shm_write16(dev, B43_SHM_SHARED,
2780 shm_offset + (i * 2),
2786 /* Update the QOS parameters in hardware. */
2787 static void b43_qos_update(struct b43_wldev *dev)
2789 struct b43_wl *wl = dev->wl;
2790 struct b43_qos_params *params;
2791 unsigned long flags;
2794 /* Mapping of mac80211 queues to b43 SHM offsets. */
2795 static const u16 qos_shm_offsets[] = {
2796 [0] = B43_QOS_VOICE,
2797 [1] = B43_QOS_VIDEO,
2798 [2] = B43_QOS_BESTEFFORT,
2799 [3] = B43_QOS_BACKGROUND,
2801 BUILD_BUG_ON(ARRAY_SIZE(qos_shm_offsets) != ARRAY_SIZE(wl->qos_params));
2803 b43_mac_suspend(dev);
2804 spin_lock_irqsave(&wl->irq_lock, flags);
2806 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
2807 params = &(wl->qos_params[i]);
2808 if (params->need_hw_update) {
2809 b43_qos_params_upload(dev, &(params->p),
2810 qos_shm_offsets[i]);
2811 params->need_hw_update = 0;
2815 spin_unlock_irqrestore(&wl->irq_lock, flags);
2816 b43_mac_enable(dev);
2819 static void b43_qos_clear(struct b43_wl *wl)
2821 struct b43_qos_params *params;
2824 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
2825 params = &(wl->qos_params[i]);
2827 memset(&(params->p), 0, sizeof(params->p));
2828 params->p.aifs = -1;
2829 params->need_hw_update = 1;
2833 /* Initialize the core's QOS capabilities */
2834 static void b43_qos_init(struct b43_wldev *dev)
2836 struct b43_wl *wl = dev->wl;
2839 /* Upload the current QOS parameters. */
2840 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++)
2841 wl->qos_params[i].need_hw_update = 1;
2842 b43_qos_update(dev);
2844 /* Enable QOS support. */
2845 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF);
2846 b43_write16(dev, B43_MMIO_IFSCTL,
2847 b43_read16(dev, B43_MMIO_IFSCTL)
2848 | B43_MMIO_IFSCTL_USE_EDCF);
2851 static void b43_qos_update_work(struct work_struct *work)
2853 struct b43_wl *wl = container_of(work, struct b43_wl, qos_update_work);
2854 struct b43_wldev *dev;
2856 mutex_lock(&wl->mutex);
2857 dev = wl->current_dev;
2858 if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED)))
2859 b43_qos_update(dev);
2860 mutex_unlock(&wl->mutex);
2863 static int b43_op_conf_tx(struct ieee80211_hw *hw,
2865 const struct ieee80211_tx_queue_params *params)
2867 struct b43_wl *wl = hw_to_b43_wl(hw);
2868 unsigned long flags;
2869 unsigned int queue = (unsigned int)_queue;
2870 struct b43_qos_params *p;
2872 if (queue >= ARRAY_SIZE(wl->qos_params)) {
2873 /* Queue not available or don't support setting
2874 * params on this queue. Return success to not
2875 * confuse mac80211. */
2879 spin_lock_irqsave(&wl->irq_lock, flags);
2880 p = &(wl->qos_params[queue]);
2881 memcpy(&(p->p), params, sizeof(p->p));
2882 p->need_hw_update = 1;
2883 spin_unlock_irqrestore(&wl->irq_lock, flags);
2885 queue_work(hw->workqueue, &wl->qos_update_work);
2890 static int b43_op_get_tx_stats(struct ieee80211_hw *hw,
2891 struct ieee80211_tx_queue_stats *stats)
2893 struct b43_wl *wl = hw_to_b43_wl(hw);
2894 struct b43_wldev *dev = wl->current_dev;
2895 unsigned long flags;
2900 spin_lock_irqsave(&wl->irq_lock, flags);
2901 if (likely(b43_status(dev) >= B43_STAT_STARTED)) {
2902 b43_dma_get_tx_stats(dev, stats);
2905 spin_unlock_irqrestore(&wl->irq_lock, flags);
2910 static int b43_op_get_stats(struct ieee80211_hw *hw,
2911 struct ieee80211_low_level_stats *stats)
2913 struct b43_wl *wl = hw_to_b43_wl(hw);
2914 unsigned long flags;
2916 spin_lock_irqsave(&wl->irq_lock, flags);
2917 memcpy(stats, &wl->ieee_stats, sizeof(*stats));
2918 spin_unlock_irqrestore(&wl->irq_lock, flags);
2923 static void b43_put_phy_into_reset(struct b43_wldev *dev)
2925 struct ssb_device *sdev = dev->dev;
2928 tmslow = ssb_read32(sdev, SSB_TMSLOW);
2929 tmslow &= ~B43_TMSLOW_GMODE;
2930 tmslow |= B43_TMSLOW_PHYRESET;
2931 tmslow |= SSB_TMSLOW_FGC;
2932 ssb_write32(sdev, SSB_TMSLOW, tmslow);
2935 tmslow = ssb_read32(sdev, SSB_TMSLOW);
2936 tmslow &= ~SSB_TMSLOW_FGC;
2937 tmslow |= B43_TMSLOW_PHYRESET;
2938 ssb_write32(sdev, SSB_TMSLOW, tmslow);
2942 static const char * band_to_string(enum ieee80211_band band)
2945 case IEEE80211_BAND_5GHZ:
2947 case IEEE80211_BAND_2GHZ:
2956 /* Expects wl->mutex locked */
2957 static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan)
2959 struct b43_wldev *up_dev = NULL;
2960 struct b43_wldev *down_dev;
2961 struct b43_wldev *d;
2966 /* Find a device and PHY which supports the band. */
2967 list_for_each_entry(d, &wl->devlist, list) {
2968 switch (chan->band) {
2969 case IEEE80211_BAND_5GHZ:
2970 if (d->phy.supports_5ghz) {
2975 case IEEE80211_BAND_2GHZ:
2976 if (d->phy.supports_2ghz) {
2989 b43err(wl, "Could not find a device for %s-GHz band operation\n",
2990 band_to_string(chan->band));
2993 if ((up_dev == wl->current_dev) &&
2994 (!!wl->current_dev->phy.gmode == !!gmode)) {
2995 /* This device is already running. */
2998 b43dbg(wl, "Switching to %s-GHz band\n",
2999 band_to_string(chan->band));
3000 down_dev = wl->current_dev;
3002 prev_status = b43_status(down_dev);
3003 /* Shutdown the currently running core. */
3004 if (prev_status >= B43_STAT_STARTED)
3005 b43_wireless_core_stop(down_dev);
3006 if (prev_status >= B43_STAT_INITIALIZED)
3007 b43_wireless_core_exit(down_dev);
3009 if (down_dev != up_dev) {
3010 /* We switch to a different core, so we put PHY into
3011 * RESET on the old core. */
3012 b43_put_phy_into_reset(down_dev);
3015 /* Now start the new core. */
3016 up_dev->phy.gmode = gmode;
3017 if (prev_status >= B43_STAT_INITIALIZED) {
3018 err = b43_wireless_core_init(up_dev);
3020 b43err(wl, "Fatal: Could not initialize device for "
3021 "selected %s-GHz band\n",
3022 band_to_string(chan->band));
3026 if (prev_status >= B43_STAT_STARTED) {
3027 err = b43_wireless_core_start(up_dev);
3029 b43err(wl, "Fatal: Coult not start device for "
3030 "selected %s-GHz band\n",
3031 band_to_string(chan->band));
3032 b43_wireless_core_exit(up_dev);
3036 B43_WARN_ON(b43_status(up_dev) != prev_status);
3038 wl->current_dev = up_dev;
3042 /* Whoops, failed to init the new core. No core is operating now. */
3043 wl->current_dev = NULL;
3047 /* Check if the use of the antenna that ieee80211 told us to
3048 * use is possible. This will fall back to DEFAULT.
3049 * "antenna_nr" is the antenna identifier we got from ieee80211. */
3050 u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev,
3055 if (antenna_nr == 0) {
3056 /* Zero means "use default antenna". That's always OK. */
3060 /* Get the mask of available antennas. */
3062 antenna_mask = dev->dev->bus->sprom.ant_available_bg;
3064 antenna_mask = dev->dev->bus->sprom.ant_available_a;
3066 if (!(antenna_mask & (1 << (antenna_nr - 1)))) {
3067 /* This antenna is not available. Fall back to default. */
3074 static int b43_antenna_from_ieee80211(struct b43_wldev *dev, u8 antenna)
3076 antenna = b43_ieee80211_antenna_sanitize(dev, antenna);
3078 case 0: /* default/diversity */
3079 return B43_ANTENNA_DEFAULT;
3080 case 1: /* Antenna 0 */
3081 return B43_ANTENNA0;
3082 case 2: /* Antenna 1 */
3083 return B43_ANTENNA1;
3084 case 3: /* Antenna 2 */
3085 return B43_ANTENNA2;
3086 case 4: /* Antenna 3 */
3087 return B43_ANTENNA3;
3089 return B43_ANTENNA_DEFAULT;
3093 static int b43_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
3095 struct b43_wl *wl = hw_to_b43_wl(hw);
3096 struct b43_wldev *dev;
3097 struct b43_phy *phy;
3098 unsigned long flags;
3103 mutex_lock(&wl->mutex);
3105 /* Switch the band (if necessary). This might change the active core. */
3106 err = b43_switch_band(wl, conf->channel);
3108 goto out_unlock_mutex;
3109 dev = wl->current_dev;
3112 /* Disable IRQs while reconfiguring the device.
3113 * This makes it possible to drop the spinlock throughout
3114 * the reconfiguration process. */
3115 spin_lock_irqsave(&wl->irq_lock, flags);
3116 if (b43_status(dev) < B43_STAT_STARTED) {
3117 spin_unlock_irqrestore(&wl->irq_lock, flags);
3118 goto out_unlock_mutex;
3120 savedirqs = b43_interrupt_disable(dev, B43_IRQ_ALL);
3121 spin_unlock_irqrestore(&wl->irq_lock, flags);
3122 b43_synchronize_irq(dev);
3124 /* Switch to the requested channel.
3125 * The firmware takes care of races with the TX handler. */
3126 if (conf->channel->hw_value != phy->channel)
3127 b43_radio_selectchannel(dev, conf->channel->hw_value, 0);
3129 /* Enable/Disable ShortSlot timing. */
3130 if ((!!(conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME)) !=
3132 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
3133 if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME)
3134 b43_short_slot_timing_enable(dev);
3136 b43_short_slot_timing_disable(dev);
3139 dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_RADIOTAP);
3141 /* Adjust the desired TX power level. */
3142 if (conf->power_level != 0) {
3143 if (conf->power_level != phy->power_level) {
3144 phy->power_level = conf->power_level;
3145 b43_phy_xmitpower(dev);
3149 /* Antennas for RX and management frame TX. */
3150 antenna = b43_antenna_from_ieee80211(dev, conf->antenna_sel_tx);
3151 b43_mgmtframe_txantenna(dev, antenna);
3152 antenna = b43_antenna_from_ieee80211(dev, conf->antenna_sel_rx);
3153 b43_set_rx_antenna(dev, antenna);
3155 /* Update templates for AP mode. */
3156 if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP))
3157 b43_set_beacon_int(dev, conf->beacon_int);
3159 if (!!conf->radio_enabled != phy->radio_on) {
3160 if (conf->radio_enabled) {
3161 b43_radio_turn_on(dev);
3162 b43info(dev->wl, "Radio turned on by software\n");
3163 if (!dev->radio_hw_enable) {
3164 b43info(dev->wl, "The hardware RF-kill button "
3165 "still turns the radio physically off. "
3166 "Press the button to turn it on.\n");
3169 b43_radio_turn_off(dev, 0);
3170 b43info(dev->wl, "Radio turned off by software\n");
3174 spin_lock_irqsave(&wl->irq_lock, flags);
3175 b43_interrupt_enable(dev, savedirqs);
3177 spin_unlock_irqrestore(&wl->irq_lock, flags);
3179 mutex_unlock(&wl->mutex);
3184 static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
3185 const u8 *local_addr, const u8 *addr,
3186 struct ieee80211_key_conf *key)
3188 struct b43_wl *wl = hw_to_b43_wl(hw);
3189 struct b43_wldev *dev;
3190 unsigned long flags;
3194 DECLARE_MAC_BUF(mac);
3196 if (modparam_nohwcrypt)
3197 return -ENOSPC; /* User disabled HW-crypto */
3199 mutex_lock(&wl->mutex);
3200 spin_lock_irqsave(&wl->irq_lock, flags);
3202 dev = wl->current_dev;
3204 if (!dev || b43_status(dev) < B43_STAT_INITIALIZED)
3210 if (key->keylen == 5)
3211 algorithm = B43_SEC_ALGO_WEP40;
3213 algorithm = B43_SEC_ALGO_WEP104;
3216 algorithm = B43_SEC_ALGO_TKIP;
3219 algorithm = B43_SEC_ALGO_AES;
3225 index = (u8) (key->keyidx);
3231 if (algorithm == B43_SEC_ALGO_TKIP) {
3232 /* FIXME: No TKIP hardware encryption for now. */
3237 if (is_broadcast_ether_addr(addr)) {
3238 /* addr is FF:FF:FF:FF:FF:FF for default keys */
3239 err = b43_key_write(dev, index, algorithm,
3240 key->key, key->keylen, NULL, key);
3243 * either pairwise key or address is 00:00:00:00:00:00
3244 * for transmit-only keys
3246 err = b43_key_write(dev, -1, algorithm,
3247 key->key, key->keylen, addr, key);
3252 if (algorithm == B43_SEC_ALGO_WEP40 ||
3253 algorithm == B43_SEC_ALGO_WEP104) {
3254 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS);
3257 b43_hf_read(dev) & ~B43_HF_USEDEFKEYS);
3259 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
3262 err = b43_key_clear(dev, key->hw_key_idx);
3271 spin_unlock_irqrestore(&wl->irq_lock, flags);
3272 mutex_unlock(&wl->mutex);
3274 b43dbg(wl, "%s hardware based encryption for keyidx: %d, "
3276 cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
3277 print_mac(mac, addr));
3282 static void b43_op_configure_filter(struct ieee80211_hw *hw,
3283 unsigned int changed, unsigned int *fflags,
3284 int mc_count, struct dev_addr_list *mc_list)
3286 struct b43_wl *wl = hw_to_b43_wl(hw);
3287 struct b43_wldev *dev = wl->current_dev;
3288 unsigned long flags;
3295 spin_lock_irqsave(&wl->irq_lock, flags);
3296 *fflags &= FIF_PROMISC_IN_BSS |
3302 FIF_BCN_PRBRESP_PROMISC;
3304 changed &= FIF_PROMISC_IN_BSS |
3310 FIF_BCN_PRBRESP_PROMISC;
3312 wl->filter_flags = *fflags;
3314 if (changed && b43_status(dev) >= B43_STAT_INITIALIZED)
3315 b43_adjust_opmode(dev);
3316 spin_unlock_irqrestore(&wl->irq_lock, flags);
3319 static int b43_op_config_interface(struct ieee80211_hw *hw,
3320 struct ieee80211_vif *vif,
3321 struct ieee80211_if_conf *conf)
3323 struct b43_wl *wl = hw_to_b43_wl(hw);
3324 struct b43_wldev *dev = wl->current_dev;
3325 unsigned long flags;
3329 mutex_lock(&wl->mutex);
3330 spin_lock_irqsave(&wl->irq_lock, flags);
3331 B43_WARN_ON(wl->vif != vif);
3333 memcpy(wl->bssid, conf->bssid, ETH_ALEN);
3335 memset(wl->bssid, 0, ETH_ALEN);
3336 if (b43_status(dev) >= B43_STAT_INITIALIZED) {
3337 if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP)) {
3338 B43_WARN_ON(conf->type != IEEE80211_IF_TYPE_AP);
3339 b43_set_ssid(dev, conf->ssid, conf->ssid_len);
3341 b43_update_templates(wl, conf->beacon);
3343 b43_write_mac_bssid_templates(dev);
3345 spin_unlock_irqrestore(&wl->irq_lock, flags);
3346 mutex_unlock(&wl->mutex);
3351 /* Locking: wl->mutex */
3352 static void b43_wireless_core_stop(struct b43_wldev *dev)
3354 struct b43_wl *wl = dev->wl;
3355 unsigned long flags;
3357 if (b43_status(dev) < B43_STAT_STARTED)
3360 /* Disable and sync interrupts. We must do this before than
3361 * setting the status to INITIALIZED, as the interrupt handler
3362 * won't care about IRQs then. */
3363 spin_lock_irqsave(&wl->irq_lock, flags);
3364 dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL);
3365 b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* flush */
3366 spin_unlock_irqrestore(&wl->irq_lock, flags);
3367 b43_synchronize_irq(dev);
3369 b43_set_status(dev, B43_STAT_INITIALIZED);
3371 mutex_unlock(&wl->mutex);
3372 /* Must unlock as it would otherwise deadlock. No races here.
3373 * Cancel the possibly running self-rearming periodic work. */
3374 cancel_delayed_work_sync(&dev->periodic_work);
3375 mutex_lock(&wl->mutex);
3377 ieee80211_stop_queues(wl->hw); //FIXME this could cause a deadlock, as mac80211 seems buggy.
3379 b43_mac_suspend(dev);
3380 free_irq(dev->dev->irq, dev);
3381 b43dbg(wl, "Wireless interface stopped\n");
3384 /* Locking: wl->mutex */
3385 static int b43_wireless_core_start(struct b43_wldev *dev)
3389 B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED);
3391 drain_txstatus_queue(dev);
3392 err = request_irq(dev->dev->irq, b43_interrupt_handler,
3393 IRQF_SHARED, KBUILD_MODNAME, dev);
3395 b43err(dev->wl, "Cannot request IRQ-%d\n", dev->dev->irq);
3399 /* We are ready to run. */
3400 b43_set_status(dev, B43_STAT_STARTED);
3402 /* Start data flow (TX/RX). */
3403 b43_mac_enable(dev);
3404 b43_interrupt_enable(dev, dev->irq_savedstate);
3405 ieee80211_start_queues(dev->wl->hw);
3407 /* Start maintainance work */
3408 b43_periodic_tasks_setup(dev);
3410 b43dbg(dev->wl, "Wireless interface started\n");
3415 /* Get PHY and RADIO versioning numbers */
3416 static int b43_phy_versioning(struct b43_wldev *dev)
3418 struct b43_phy *phy = &dev->phy;
3426 int unsupported = 0;
3428 /* Get PHY versioning */
3429 tmp = b43_read16(dev, B43_MMIO_PHY_VER);
3430 analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT;
3431 phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT;
3432 phy_rev = (tmp & B43_PHYVER_VERSION);
3439 if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6
3447 #ifdef CONFIG_B43_NPHY
3457 b43err(dev->wl, "FOUND UNSUPPORTED PHY "
3458 "(Analog %u, Type %u, Revision %u)\n",
3459 analog_type, phy_type, phy_rev);
3462 b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n",
3463 analog_type, phy_type, phy_rev);
3465 /* Get RADIO versioning */
3466 if (dev->dev->bus->chip_id == 0x4317) {
3467 if (dev->dev->bus->chip_rev == 0)
3469 else if (dev->dev->bus->chip_rev == 1)
3474 b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
3475 tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
3476 b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
3477 tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH) << 16;
3479 radio_manuf = (tmp & 0x00000FFF);
3480 radio_ver = (tmp & 0x0FFFF000) >> 12;
3481 radio_rev = (tmp & 0xF0000000) >> 28;
3482 if (radio_manuf != 0x17F /* Broadcom */)
3486 if (radio_ver != 0x2060)
3490 if (radio_manuf != 0x17F)
3494 if ((radio_ver & 0xFFF0) != 0x2050)
3498 if (radio_ver != 0x2050)
3502 if (radio_ver != 0x2055)
3509 b43err(dev->wl, "FOUND UNSUPPORTED RADIO "
3510 "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
3511 radio_manuf, radio_ver, radio_rev);
3514 b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n",
3515 radio_manuf, radio_ver, radio_rev);
3517 phy->radio_manuf = radio_manuf;
3518 phy->radio_ver = radio_ver;
3519 phy->radio_rev = radio_rev;
3521 phy->analog = analog_type;
3522 phy->type = phy_type;
3528 static void setup_struct_phy_for_init(struct b43_wldev *dev,
3529 struct b43_phy *phy)
3531 struct b43_txpower_lo_control *lo;
3534 memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
3535 memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
3537 phy->aci_enable = 0;
3538 phy->aci_wlan_automatic = 0;
3539 phy->aci_hw_rssi = 0;
3541 phy->radio_off_context.valid = 0;
3543 lo = phy->lo_control;
3545 memset(lo, 0, sizeof(*(phy->lo_control)));
3549 phy->max_lb_gain = 0;
3550 phy->trsw_rx_gain = 0;
3551 phy->txpwr_offset = 0;
3554 phy->nrssislope = 0;
3555 for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++)
3556 phy->nrssi[i] = -1000;
3557 for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++)
3558 phy->nrssi_lt[i] = i;
3560 phy->lofcal = 0xFFFF;
3561 phy->initval = 0xFFFF;
3563 phy->interfmode = B43_INTERFMODE_NONE;
3564 phy->channel = 0xFF;
3566 phy->hardware_power_control = !!modparam_hwpctl;
3568 /* PHY TX errors counter. */
3569 atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
3571 /* OFDM-table address caching. */
3572 phy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_UNKNOWN;
3575 static void setup_struct_wldev_for_init(struct b43_wldev *dev)
3579 /* Assume the radio is enabled. If it's not enabled, the state will
3580 * immediately get fixed on the first periodic work run. */
3581 dev->radio_hw_enable = 1;
3584 memset(&dev->stats, 0, sizeof(dev->stats));
3586 setup_struct_phy_for_init(dev, &dev->phy);
3588 /* IRQ related flags */
3589 dev->irq_reason = 0;
3590 memset(dev->dma_reason, 0, sizeof(dev->dma_reason));
3591 dev->irq_savedstate = B43_IRQ_MASKTEMPLATE;
3593 dev->mac_suspended = 1;
3595 /* Noise calculation context */
3596 memset(&dev->noisecalc, 0, sizeof(dev->noisecalc));
3599 static void b43_bluetooth_coext_enable(struct b43_wldev *dev)
3601 struct ssb_sprom *sprom = &dev->dev->bus->sprom;
3604 if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST))
3606 if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode)
3609 hf = b43_hf_read(dev);
3610 if (sprom->boardflags_lo & B43_BFL_BTCMOD)
3611 hf |= B43_HF_BTCOEXALT;
3613 hf |= B43_HF_BTCOEX;
3614 b43_hf_write(dev, hf);
3618 static void b43_bluetooth_coext_disable(struct b43_wldev *dev)
3622 static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev)
3624 #ifdef CONFIG_SSB_DRIVER_PCICORE
3625 struct ssb_bus *bus = dev->dev->bus;
3628 if (bus->pcicore.dev &&
3629 bus->pcicore.dev->id.coreid == SSB_DEV_PCI &&
3630 bus->pcicore.dev->id.revision <= 5) {
3631 /* IMCFGLO timeouts workaround. */
3632 tmp = ssb_read32(dev->dev, SSB_IMCFGLO);
3633 tmp &= ~SSB_IMCFGLO_REQTO;
3634 tmp &= ~SSB_IMCFGLO_SERTO;
3635 switch (bus->bustype) {
3636 case SSB_BUSTYPE_PCI:
3637 case SSB_BUSTYPE_PCMCIA:
3640 case SSB_BUSTYPE_SSB:
3644 ssb_write32(dev->dev, SSB_IMCFGLO, tmp);
3646 #endif /* CONFIG_SSB_DRIVER_PCICORE */
3649 /* Write the short and long frame retry limit values. */
3650 static void b43_set_retry_limits(struct b43_wldev *dev,
3651 unsigned int short_retry,
3652 unsigned int long_retry)
3654 /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
3655 * the chip-internal counter. */
3656 short_retry = min(short_retry, (unsigned int)0xF);
3657 long_retry = min(long_retry, (unsigned int)0xF);
3659 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT,
3661 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT,
3665 /* Shutdown a wireless core */
3666 /* Locking: wl->mutex */
3667 static void b43_wireless_core_exit(struct b43_wldev *dev)
3669 struct b43_phy *phy = &dev->phy;
3672 B43_WARN_ON(b43_status(dev) > B43_STAT_INITIALIZED);
3673 if (b43_status(dev) != B43_STAT_INITIALIZED)
3675 b43_set_status(dev, B43_STAT_UNINIT);
3677 /* Stop the microcode PSM. */
3678 macctl = b43_read32(dev, B43_MMIO_MACCTL);
3679 macctl &= ~B43_MACCTL_PSM_RUN;
3680 macctl |= B43_MACCTL_PSM_JMP0;
3681 b43_write32(dev, B43_MMIO_MACCTL, macctl);
3683 if (!dev->suspend_in_progress) {
3685 b43_rng_exit(dev->wl, false);
3689 b43_radio_turn_off(dev, 1);
3690 b43_switch_analog(dev, 0);
3691 if (phy->dyn_tssi_tbl)
3692 kfree(phy->tssi2dbm);
3693 kfree(phy->lo_control);
3694 phy->lo_control = NULL;
3695 if (dev->wl->current_beacon) {
3696 dev_kfree_skb_any(dev->wl->current_beacon);
3697 dev->wl->current_beacon = NULL;
3700 ssb_device_disable(dev->dev, 0);
3701 ssb_bus_may_powerdown(dev->dev->bus);
3704 /* Initialize a wireless core */
3705 static int b43_wireless_core_init(struct b43_wldev *dev)
3707 struct b43_wl *wl = dev->wl;
3708 struct ssb_bus *bus = dev->dev->bus;
3709 struct ssb_sprom *sprom = &bus->sprom;
3710 struct b43_phy *phy = &dev->phy;
3714 B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
3716 err = ssb_bus_powerup(bus, 0);
3719 if (!ssb_device_is_enabled(dev->dev)) {
3720 tmp = phy->gmode ? B43_TMSLOW_GMODE : 0;
3721 b43_wireless_core_reset(dev, tmp);
3724 if ((phy->type == B43_PHYTYPE_B) || (phy->type == B43_PHYTYPE_G)) {
3726 kzalloc(sizeof(*(phy->lo_control)), GFP_KERNEL);
3727 if (!phy->lo_control) {
3732 setup_struct_wldev_for_init(dev);
3734 err = b43_phy_init_tssi2dbm_table(dev);
3736 goto err_kfree_lo_control;
3738 /* Enable IRQ routing to this device. */
3739 ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev);
3741 b43_imcfglo_timeouts_workaround(dev);
3742 b43_bluetooth_coext_disable(dev);
3743 b43_phy_early_init(dev);
3744 err = b43_chip_init(dev);
3746 goto err_kfree_tssitbl;
3747 b43_shm_write16(dev, B43_SHM_SHARED,
3748 B43_SHM_SH_WLCOREREV, dev->dev->id.revision);
3749 hf = b43_hf_read(dev);
3750 if (phy->type == B43_PHYTYPE_G) {
3754 if (sprom->boardflags_lo & B43_BFL_PACTRL)
3755 hf |= B43_HF_OFDMPABOOST;
3756 } else if (phy->type == B43_PHYTYPE_B) {
3758 if (phy->rev >= 2 && phy->radio_ver == 0x2050)
3761 b43_hf_write(dev, hf);
3763 b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT,
3764 B43_DEFAULT_LONG_RETRY_LIMIT);
3765 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3);
3766 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2);
3768 /* Disable sending probe responses from firmware.
3769 * Setting the MaxTime to one usec will always trigger
3770 * a timeout, so we never send any probe resp.
3771 * A timeout of zero is infinite. */
3772 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1);
3774 b43_rate_memory_init(dev);
3776 /* Minimum Contention Window */
3777 if (phy->type == B43_PHYTYPE_B) {
3778 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F);
3780 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF);
3782 /* Maximum Contention Window */
3783 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF);
3785 err = b43_dma_init(dev);
3792 b43_write16(dev, 0x0612, 0x0050);
3793 b43_shm_write16(dev, B43_SHM_SHARED, 0x0416, 0x0050);
3794 b43_shm_write16(dev, B43_SHM_SHARED, 0x0414, 0x01F4);
3797 b43_bluetooth_coext_enable(dev);
3799 ssb_bus_powerup(bus, 1); /* Enable dynamic PCTL */
3800 b43_upload_card_macaddress(dev);
3801 b43_security_init(dev);
3802 if (!dev->suspend_in_progress)
3805 b43_set_status(dev, B43_STAT_INITIALIZED);
3807 if (!dev->suspend_in_progress)
3815 if (phy->dyn_tssi_tbl)
3816 kfree(phy->tssi2dbm);
3817 err_kfree_lo_control:
3818 kfree(phy->lo_control);
3819 phy->lo_control = NULL;
3821 ssb_bus_may_powerdown(bus);
3822 B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
3826 static int b43_op_add_interface(struct ieee80211_hw *hw,
3827 struct ieee80211_if_init_conf *conf)
3829 struct b43_wl *wl = hw_to_b43_wl(hw);
3830 struct b43_wldev *dev;
3831 unsigned long flags;
3832 int err = -EOPNOTSUPP;
3834 /* TODO: allow WDS/AP devices to coexist */
3836 if (conf->type != IEEE80211_IF_TYPE_AP &&
3837 conf->type != IEEE80211_IF_TYPE_STA &&
3838 conf->type != IEEE80211_IF_TYPE_WDS &&
3839 conf->type != IEEE80211_IF_TYPE_IBSS)
3842 mutex_lock(&wl->mutex);
3844 goto out_mutex_unlock;
3846 b43dbg(wl, "Adding Interface type %d\n", conf->type);
3848 dev = wl->current_dev;
3850 wl->vif = conf->vif;
3851 wl->if_type = conf->type;
3852 memcpy(wl->mac_addr, conf->mac_addr, ETH_ALEN);
3854 spin_lock_irqsave(&wl->irq_lock, flags);
3855 b43_adjust_opmode(dev);
3856 b43_upload_card_macaddress(dev);
3857 spin_unlock_irqrestore(&wl->irq_lock, flags);
3861 mutex_unlock(&wl->mutex);
3866 static void b43_op_remove_interface(struct ieee80211_hw *hw,
3867 struct ieee80211_if_init_conf *conf)
3869 struct b43_wl *wl = hw_to_b43_wl(hw);
3870 struct b43_wldev *dev = wl->current_dev;
3871 unsigned long flags;
3873 b43dbg(wl, "Removing Interface type %d\n", conf->type);
3875 mutex_lock(&wl->mutex);
3877 B43_WARN_ON(!wl->operating);
3878 B43_WARN_ON(wl->vif != conf->vif);
3883 spin_lock_irqsave(&wl->irq_lock, flags);
3884 b43_adjust_opmode(dev);
3885 memset(wl->mac_addr, 0, ETH_ALEN);
3886 b43_upload_card_macaddress(dev);
3887 spin_unlock_irqrestore(&wl->irq_lock, flags);
3889 mutex_unlock(&wl->mutex);
3892 static int b43_op_start(struct ieee80211_hw *hw)
3894 struct b43_wl *wl = hw_to_b43_wl(hw);
3895 struct b43_wldev *dev = wl->current_dev;
3898 bool do_rfkill_exit = 0;
3900 /* Kill all old instance specific information to make sure
3901 * the card won't use it in the short timeframe between start
3902 * and mac80211 reconfiguring it. */
3903 memset(wl->bssid, 0, ETH_ALEN);
3904 memset(wl->mac_addr, 0, ETH_ALEN);
3905 wl->filter_flags = 0;
3906 wl->radiotap_enabled = 0;
3909 /* First register RFkill.
3910 * LEDs that are registered later depend on it. */
3911 b43_rfkill_init(dev);
3913 mutex_lock(&wl->mutex);
3915 if (b43_status(dev) < B43_STAT_INITIALIZED) {
3916 err = b43_wireless_core_init(dev);
3919 goto out_mutex_unlock;
3924 if (b43_status(dev) < B43_STAT_STARTED) {
3925 err = b43_wireless_core_start(dev);
3928 b43_wireless_core_exit(dev);
3930 goto out_mutex_unlock;
3935 mutex_unlock(&wl->mutex);
3938 b43_rfkill_exit(dev);
3943 static void b43_op_stop(struct ieee80211_hw *hw)
3945 struct b43_wl *wl = hw_to_b43_wl(hw);
3946 struct b43_wldev *dev = wl->current_dev;
3948 b43_rfkill_exit(dev);
3949 cancel_work_sync(&(wl->qos_update_work));
3951 mutex_lock(&wl->mutex);
3952 if (b43_status(dev) >= B43_STAT_STARTED)
3953 b43_wireless_core_stop(dev);
3954 b43_wireless_core_exit(dev);
3955 mutex_unlock(&wl->mutex);
3958 static int b43_op_set_retry_limit(struct ieee80211_hw *hw,
3959 u32 short_retry_limit, u32 long_retry_limit)
3961 struct b43_wl *wl = hw_to_b43_wl(hw);
3962 struct b43_wldev *dev;
3965 mutex_lock(&wl->mutex);
3966 dev = wl->current_dev;
3967 if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) {
3971 b43_set_retry_limits(dev, short_retry_limit, long_retry_limit);
3973 mutex_unlock(&wl->mutex);
3978 static int b43_op_beacon_set_tim(struct ieee80211_hw *hw, int aid, int set)
3980 struct b43_wl *wl = hw_to_b43_wl(hw);
3981 struct sk_buff *beacon;
3982 unsigned long flags;
3984 /* We could modify the existing beacon and set the aid bit in
3985 * the TIM field, but that would probably require resizing and
3986 * moving of data within the beacon template.
3987 * Simply request a new beacon and let mac80211 do the hard work. */
3988 beacon = ieee80211_beacon_get(hw, wl->vif, NULL);
3989 if (unlikely(!beacon))
3991 spin_lock_irqsave(&wl->irq_lock, flags);
3992 b43_update_templates(wl, beacon);
3993 spin_unlock_irqrestore(&wl->irq_lock, flags);
3998 static int b43_op_ibss_beacon_update(struct ieee80211_hw *hw,
3999 struct sk_buff *beacon,
4000 struct ieee80211_tx_control *ctl)
4002 struct b43_wl *wl = hw_to_b43_wl(hw);
4003 unsigned long flags;
4005 spin_lock_irqsave(&wl->irq_lock, flags);
4006 b43_update_templates(wl, beacon);
4007 spin_unlock_irqrestore(&wl->irq_lock, flags);
4012 static void b43_op_sta_notify(struct ieee80211_hw *hw,
4013 struct ieee80211_vif *vif,
4014 enum sta_notify_cmd notify_cmd,
4017 struct b43_wl *wl = hw_to_b43_wl(hw);
4019 B43_WARN_ON(!vif || wl->vif != vif);
4022 static const struct ieee80211_ops b43_hw_ops = {
4024 .conf_tx = b43_op_conf_tx,
4025 .add_interface = b43_op_add_interface,
4026 .remove_interface = b43_op_remove_interface,
4027 .config = b43_op_config,
4028 .config_interface = b43_op_config_interface,
4029 .configure_filter = b43_op_configure_filter,
4030 .set_key = b43_op_set_key,
4031 .get_stats = b43_op_get_stats,
4032 .get_tx_stats = b43_op_get_tx_stats,
4033 .start = b43_op_start,
4034 .stop = b43_op_stop,
4035 .set_retry_limit = b43_op_set_retry_limit,
4036 .set_tim = b43_op_beacon_set_tim,
4037 .beacon_update = b43_op_ibss_beacon_update,
4038 .sta_notify = b43_op_sta_notify,
4041 /* Hard-reset the chip. Do not call this directly.
4042 * Use b43_controller_restart()
4044 static void b43_chip_reset(struct work_struct *work)
4046 struct b43_wldev *dev =
4047 container_of(work, struct b43_wldev, restart_work);
4048 struct b43_wl *wl = dev->wl;
4052 mutex_lock(&wl->mutex);
4054 prev_status = b43_status(dev);
4055 /* Bring the device down... */
4056 if (prev_status >= B43_STAT_STARTED)
4057 b43_wireless_core_stop(dev);
4058 if (prev_status >= B43_STAT_INITIALIZED)
4059 b43_wireless_core_exit(dev);
4061 /* ...and up again. */
4062 if (prev_status >= B43_STAT_INITIALIZED) {
4063 err = b43_wireless_core_init(dev);
4067 if (prev_status >= B43_STAT_STARTED) {
4068 err = b43_wireless_core_start(dev);
4070 b43_wireless_core_exit(dev);
4075 mutex_unlock(&wl->mutex);
4077 b43err(wl, "Controller restart FAILED\n");
4079 b43info(wl, "Controller restarted\n");
4082 static int b43_setup_bands(struct b43_wldev *dev,
4083 bool have_2ghz_phy, bool have_5ghz_phy)
4085 struct ieee80211_hw *hw = dev->wl->hw;
4088 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz;
4089 if (dev->phy.type == B43_PHYTYPE_N) {
4091 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_nphy;
4094 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy;
4097 dev->phy.supports_2ghz = have_2ghz_phy;
4098 dev->phy.supports_5ghz = have_5ghz_phy;
4103 static void b43_wireless_core_detach(struct b43_wldev *dev)
4105 /* We release firmware that late to not be required to re-request
4106 * is all the time when we reinit the core. */
4107 b43_release_firmware(dev);
4110 static int b43_wireless_core_attach(struct b43_wldev *dev)
4112 struct b43_wl *wl = dev->wl;
4113 struct ssb_bus *bus = dev->dev->bus;
4114 struct pci_dev *pdev = bus->host_pci;
4116 bool have_2ghz_phy = 0, have_5ghz_phy = 0;
4119 /* Do NOT do any device initialization here.
4120 * Do it in wireless_core_init() instead.
4121 * This function is for gathering basic information about the HW, only.
4122 * Also some structs may be set up here. But most likely you want to have
4123 * that in core_init(), too.
4126 err = ssb_bus_powerup(bus, 0);
4128 b43err(wl, "Bus powerup failed\n");
4131 /* Get the PHY type. */
4132 if (dev->dev->id.revision >= 5) {
4135 tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);
4136 have_2ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY);
4137 have_5ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_5GHZ_PHY);
4141 dev->phy.gmode = have_2ghz_phy;
4142 tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
4143 b43_wireless_core_reset(dev, tmp);
4145 err = b43_phy_versioning(dev);
4148 /* Check if this device supports multiband. */
4150 (pdev->device != 0x4312 &&
4151 pdev->device != 0x4319 && pdev->device != 0x4324)) {
4152 /* No multiband support. */
4155 switch (dev->phy.type) {
4167 if (dev->phy.type == B43_PHYTYPE_A) {
4169 b43err(wl, "IEEE 802.11a devices are unsupported\n");
4173 dev->phy.gmode = have_2ghz_phy;
4174 tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
4175 b43_wireless_core_reset(dev, tmp);
4177 err = b43_validate_chipaccess(dev);
4180 err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy);
4184 /* Now set some default "current_dev" */
4185 if (!wl->current_dev)
4186 wl->current_dev = dev;
4187 INIT_WORK(&dev->restart_work, b43_chip_reset);
4189 b43_radio_turn_off(dev, 1);
4190 b43_switch_analog(dev, 0);
4191 ssb_device_disable(dev->dev, 0);
4192 ssb_bus_may_powerdown(bus);
4198 ssb_bus_may_powerdown(bus);
4202 static void b43_one_core_detach(struct ssb_device *dev)
4204 struct b43_wldev *wldev;
4207 wldev = ssb_get_drvdata(dev);
4209 cancel_work_sync(&wldev->restart_work);
4210 b43_debugfs_remove_device(wldev);
4211 b43_wireless_core_detach(wldev);
4212 list_del(&wldev->list);
4214 ssb_set_drvdata(dev, NULL);
4218 static int b43_one_core_attach(struct ssb_device *dev, struct b43_wl *wl)
4220 struct b43_wldev *wldev;
4221 struct pci_dev *pdev;
4224 if (!list_empty(&wl->devlist)) {
4225 /* We are not the first core on this chip. */
4226 pdev = dev->bus->host_pci;
4227 /* Only special chips support more than one wireless
4228 * core, although some of the other chips have more than
4229 * one wireless core as well. Check for this and
4233 ((pdev->device != 0x4321) &&
4234 (pdev->device != 0x4313) && (pdev->device != 0x431A))) {
4235 b43dbg(wl, "Ignoring unconnected 802.11 core\n");
4240 wldev = kzalloc(sizeof(*wldev), GFP_KERNEL);
4246 b43_set_status(wldev, B43_STAT_UNINIT);
4247 wldev->bad_frames_preempt = modparam_bad_frames_preempt;
4248 tasklet_init(&wldev->isr_tasklet,
4249 (void (*)(unsigned long))b43_interrupt_tasklet,
4250 (unsigned long)wldev);
4251 INIT_LIST_HEAD(&wldev->list);
4253 err = b43_wireless_core_attach(wldev);
4255 goto err_kfree_wldev;
4257 list_add(&wldev->list, &wl->devlist);
4259 ssb_set_drvdata(dev, wldev);
4260 b43_debugfs_add_device(wldev);
4270 static void b43_sprom_fixup(struct ssb_bus *bus)
4272 /* boardflags workarounds */
4273 if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL &&
4274 bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74)
4275 bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST;
4276 if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE &&
4277 bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40)
4278 bus->sprom.boardflags_lo |= B43_BFL_PACTRL;
4281 static void b43_wireless_exit(struct ssb_device *dev, struct b43_wl *wl)
4283 struct ieee80211_hw *hw = wl->hw;
4285 ssb_set_devtypedata(dev, NULL);
4286 ieee80211_free_hw(hw);
4289 static int b43_wireless_init(struct ssb_device *dev)
4291 struct ssb_sprom *sprom = &dev->bus->sprom;
4292 struct ieee80211_hw *hw;
4296 b43_sprom_fixup(dev->bus);
4298 hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops);
4300 b43err(NULL, "Could not allocate ieee80211 device\n");
4305 hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
4306 IEEE80211_HW_RX_INCLUDES_FCS;
4307 hw->max_signal = 100;
4308 hw->max_rssi = -110;
4309 hw->max_noise = -110;
4310 hw->queues = b43_modparam_qos ? 4 : 1;
4311 SET_IEEE80211_DEV(hw, dev->dev);
4312 if (is_valid_ether_addr(sprom->et1mac))
4313 SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
4315 SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac);
4317 /* Get and initialize struct b43_wl */
4318 wl = hw_to_b43_wl(hw);
4319 memset(wl, 0, sizeof(*wl));
4321 spin_lock_init(&wl->irq_lock);
4322 spin_lock_init(&wl->leds_lock);
4323 spin_lock_init(&wl->shm_lock);
4324 mutex_init(&wl->mutex);
4325 INIT_LIST_HEAD(&wl->devlist);
4326 INIT_WORK(&wl->qos_update_work, b43_qos_update_work);
4328 ssb_set_devtypedata(dev, wl);
4329 b43info(wl, "Broadcom %04X WLAN found\n", dev->bus->chip_id);
4335 static int b43_probe(struct ssb_device *dev, const struct ssb_device_id *id)
4341 wl = ssb_get_devtypedata(dev);
4343 /* Probing the first core. Must setup common struct b43_wl */
4345 err = b43_wireless_init(dev);
4348 wl = ssb_get_devtypedata(dev);
4351 err = b43_one_core_attach(dev, wl);
4353 goto err_wireless_exit;
4356 err = ieee80211_register_hw(wl->hw);
4358 goto err_one_core_detach;
4364 err_one_core_detach:
4365 b43_one_core_detach(dev);
4368 b43_wireless_exit(dev, wl);
4372 static void b43_remove(struct ssb_device *dev)
4374 struct b43_wl *wl = ssb_get_devtypedata(dev);
4375 struct b43_wldev *wldev = ssb_get_drvdata(dev);
4378 if (wl->current_dev == wldev)
4379 ieee80211_unregister_hw(wl->hw);
4381 b43_one_core_detach(dev);
4383 if (list_empty(&wl->devlist)) {
4384 /* Last core on the chip unregistered.
4385 * We can destroy common struct b43_wl.
4387 b43_wireless_exit(dev, wl);
4391 /* Perform a hardware reset. This can be called from any context. */
4392 void b43_controller_restart(struct b43_wldev *dev, const char *reason)
4394 /* Must avoid requeueing, if we are in shutdown. */
4395 if (b43_status(dev) < B43_STAT_INITIALIZED)
4397 b43info(dev->wl, "Controller RESET (%s) ...\n", reason);
4398 queue_work(dev->wl->hw->workqueue, &dev->restart_work);
4403 static int b43_suspend(struct ssb_device *dev, pm_message_t state)
4405 struct b43_wldev *wldev = ssb_get_drvdata(dev);
4406 struct b43_wl *wl = wldev->wl;
4408 b43dbg(wl, "Suspending...\n");
4410 mutex_lock(&wl->mutex);
4411 wldev->suspend_in_progress = true;
4412 wldev->suspend_init_status = b43_status(wldev);
4413 if (wldev->suspend_init_status >= B43_STAT_STARTED)
4414 b43_wireless_core_stop(wldev);
4415 if (wldev->suspend_init_status >= B43_STAT_INITIALIZED)
4416 b43_wireless_core_exit(wldev);
4417 mutex_unlock(&wl->mutex);
4419 b43dbg(wl, "Device suspended.\n");
4424 static int b43_resume(struct ssb_device *dev)
4426 struct b43_wldev *wldev = ssb_get_drvdata(dev);
4427 struct b43_wl *wl = wldev->wl;
4430 b43dbg(wl, "Resuming...\n");
4432 mutex_lock(&wl->mutex);
4433 if (wldev->suspend_init_status >= B43_STAT_INITIALIZED) {
4434 err = b43_wireless_core_init(wldev);
4436 b43err(wl, "Resume failed at core init\n");
4440 if (wldev->suspend_init_status >= B43_STAT_STARTED) {
4441 err = b43_wireless_core_start(wldev);
4443 b43_leds_exit(wldev);
4444 b43_rng_exit(wldev->wl, true);
4445 b43_wireless_core_exit(wldev);
4446 b43err(wl, "Resume failed at core start\n");
4450 b43dbg(wl, "Device resumed.\n");
4452 wldev->suspend_in_progress = false;
4453 mutex_unlock(&wl->mutex);
4457 #else /* CONFIG_PM */
4458 # define b43_suspend NULL
4459 # define b43_resume NULL
4460 #endif /* CONFIG_PM */
4462 static struct ssb_driver b43_ssb_driver = {
4463 .name = KBUILD_MODNAME,
4464 .id_table = b43_ssb_tbl,
4466 .remove = b43_remove,
4467 .suspend = b43_suspend,
4468 .resume = b43_resume,
4471 static void b43_print_driverinfo(void)
4473 const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "",
4474 *feat_leds = "", *feat_rfkill = "";
4476 #ifdef CONFIG_B43_PCI_AUTOSELECT
4479 #ifdef CONFIG_B43_PCMCIA
4482 #ifdef CONFIG_B43_NPHY
4485 #ifdef CONFIG_B43_LEDS
4488 #ifdef CONFIG_B43_RFKILL
4491 printk(KERN_INFO "Broadcom 43xx driver loaded "
4492 "[ Features: %s%s%s%s%s, Firmware-ID: "
4493 B43_SUPPORTED_FIRMWARE_ID " ]\n",
4494 feat_pci, feat_pcmcia, feat_nphy,
4495 feat_leds, feat_rfkill);
4498 static int __init b43_init(void)
4503 err = b43_pcmcia_init();
4506 err = ssb_driver_register(&b43_ssb_driver);
4508 goto err_pcmcia_exit;
4509 b43_print_driverinfo();
4520 static void __exit b43_exit(void)
4522 ssb_driver_unregister(&b43_ssb_driver);
4527 module_init(b43_init)
4528 module_exit(b43_exit)