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>
57 MODULE_DESCRIPTION("Broadcom B43 wireless driver");
58 MODULE_AUTHOR("Martin Langer");
59 MODULE_AUTHOR("Stefano Brivio");
60 MODULE_AUTHOR("Michael Buesch");
61 MODULE_LICENSE("GPL");
63 MODULE_FIRMWARE(B43_SUPPORTED_FIRMWARE_ID);
66 static int modparam_bad_frames_preempt;
67 module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444);
68 MODULE_PARM_DESC(bad_frames_preempt,
69 "enable(1) / disable(0) Bad Frames Preemption");
71 static char modparam_fwpostfix[16];
72 module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444);
73 MODULE_PARM_DESC(fwpostfix, "Postfix for the .fw files to load.");
75 static int modparam_hwpctl;
76 module_param_named(hwpctl, modparam_hwpctl, int, 0444);
77 MODULE_PARM_DESC(hwpctl, "Enable hardware-side power control (default off)");
79 static int modparam_nohwcrypt;
80 module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444);
81 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
83 int b43_modparam_qos = 1;
84 module_param_named(qos, b43_modparam_qos, int, 0444);
85 MODULE_PARM_DESC(qos, "Enable QOS support (default on)");
87 static int modparam_btcoex = 1;
88 module_param_named(btcoex, modparam_btcoex, int, 0444);
89 MODULE_PARM_DESC(btcoex, "Enable Bluetooth coexistance (default on)");
92 static const struct ssb_device_id b43_ssb_tbl[] = {
93 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5),
94 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6),
95 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7),
96 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9),
97 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10),
98 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11),
99 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13),
103 MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl);
105 /* Channel and ratetables are shared for all devices.
106 * They can't be const, because ieee80211 puts some precalculated
107 * data in there. This data is the same for all devices, so we don't
108 * get concurrency issues */
109 #define RATETAB_ENT(_rateid, _flags) \
111 .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \
112 .hw_value = (_rateid), \
117 * NOTE: When changing this, sync with xmit.c's
118 * b43_plcp_get_bitrate_idx_* functions!
120 static struct ieee80211_rate __b43_ratetable[] = {
121 RATETAB_ENT(B43_CCK_RATE_1MB, 0),
122 RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE),
123 RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE),
124 RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE),
125 RATETAB_ENT(B43_OFDM_RATE_6MB, 0),
126 RATETAB_ENT(B43_OFDM_RATE_9MB, 0),
127 RATETAB_ENT(B43_OFDM_RATE_12MB, 0),
128 RATETAB_ENT(B43_OFDM_RATE_18MB, 0),
129 RATETAB_ENT(B43_OFDM_RATE_24MB, 0),
130 RATETAB_ENT(B43_OFDM_RATE_36MB, 0),
131 RATETAB_ENT(B43_OFDM_RATE_48MB, 0),
132 RATETAB_ENT(B43_OFDM_RATE_54MB, 0),
135 #define b43_a_ratetable (__b43_ratetable + 4)
136 #define b43_a_ratetable_size 8
137 #define b43_b_ratetable (__b43_ratetable + 0)
138 #define b43_b_ratetable_size 4
139 #define b43_g_ratetable (__b43_ratetable + 0)
140 #define b43_g_ratetable_size 12
142 #define CHAN4G(_channel, _freq, _flags) { \
143 .band = IEEE80211_BAND_2GHZ, \
144 .center_freq = (_freq), \
145 .hw_value = (_channel), \
147 .max_antenna_gain = 0, \
150 static struct ieee80211_channel b43_2ghz_chantable[] = {
168 #define CHAN5G(_channel, _flags) { \
169 .band = IEEE80211_BAND_5GHZ, \
170 .center_freq = 5000 + (5 * (_channel)), \
171 .hw_value = (_channel), \
173 .max_antenna_gain = 0, \
176 static struct ieee80211_channel b43_5ghz_nphy_chantable[] = {
177 CHAN5G(32, 0), CHAN5G(34, 0),
178 CHAN5G(36, 0), CHAN5G(38, 0),
179 CHAN5G(40, 0), CHAN5G(42, 0),
180 CHAN5G(44, 0), CHAN5G(46, 0),
181 CHAN5G(48, 0), CHAN5G(50, 0),
182 CHAN5G(52, 0), CHAN5G(54, 0),
183 CHAN5G(56, 0), CHAN5G(58, 0),
184 CHAN5G(60, 0), CHAN5G(62, 0),
185 CHAN5G(64, 0), CHAN5G(66, 0),
186 CHAN5G(68, 0), CHAN5G(70, 0),
187 CHAN5G(72, 0), CHAN5G(74, 0),
188 CHAN5G(76, 0), CHAN5G(78, 0),
189 CHAN5G(80, 0), CHAN5G(82, 0),
190 CHAN5G(84, 0), CHAN5G(86, 0),
191 CHAN5G(88, 0), CHAN5G(90, 0),
192 CHAN5G(92, 0), CHAN5G(94, 0),
193 CHAN5G(96, 0), CHAN5G(98, 0),
194 CHAN5G(100, 0), CHAN5G(102, 0),
195 CHAN5G(104, 0), CHAN5G(106, 0),
196 CHAN5G(108, 0), CHAN5G(110, 0),
197 CHAN5G(112, 0), CHAN5G(114, 0),
198 CHAN5G(116, 0), CHAN5G(118, 0),
199 CHAN5G(120, 0), CHAN5G(122, 0),
200 CHAN5G(124, 0), CHAN5G(126, 0),
201 CHAN5G(128, 0), CHAN5G(130, 0),
202 CHAN5G(132, 0), CHAN5G(134, 0),
203 CHAN5G(136, 0), CHAN5G(138, 0),
204 CHAN5G(140, 0), CHAN5G(142, 0),
205 CHAN5G(144, 0), CHAN5G(145, 0),
206 CHAN5G(146, 0), CHAN5G(147, 0),
207 CHAN5G(148, 0), CHAN5G(149, 0),
208 CHAN5G(150, 0), CHAN5G(151, 0),
209 CHAN5G(152, 0), CHAN5G(153, 0),
210 CHAN5G(154, 0), CHAN5G(155, 0),
211 CHAN5G(156, 0), CHAN5G(157, 0),
212 CHAN5G(158, 0), CHAN5G(159, 0),
213 CHAN5G(160, 0), CHAN5G(161, 0),
214 CHAN5G(162, 0), CHAN5G(163, 0),
215 CHAN5G(164, 0), CHAN5G(165, 0),
216 CHAN5G(166, 0), CHAN5G(168, 0),
217 CHAN5G(170, 0), CHAN5G(172, 0),
218 CHAN5G(174, 0), CHAN5G(176, 0),
219 CHAN5G(178, 0), CHAN5G(180, 0),
220 CHAN5G(182, 0), CHAN5G(184, 0),
221 CHAN5G(186, 0), CHAN5G(188, 0),
222 CHAN5G(190, 0), CHAN5G(192, 0),
223 CHAN5G(194, 0), CHAN5G(196, 0),
224 CHAN5G(198, 0), CHAN5G(200, 0),
225 CHAN5G(202, 0), CHAN5G(204, 0),
226 CHAN5G(206, 0), CHAN5G(208, 0),
227 CHAN5G(210, 0), CHAN5G(212, 0),
228 CHAN5G(214, 0), CHAN5G(216, 0),
229 CHAN5G(218, 0), CHAN5G(220, 0),
230 CHAN5G(222, 0), CHAN5G(224, 0),
231 CHAN5G(226, 0), CHAN5G(228, 0),
234 static struct ieee80211_channel b43_5ghz_aphy_chantable[] = {
235 CHAN5G(34, 0), CHAN5G(36, 0),
236 CHAN5G(38, 0), CHAN5G(40, 0),
237 CHAN5G(42, 0), CHAN5G(44, 0),
238 CHAN5G(46, 0), CHAN5G(48, 0),
239 CHAN5G(52, 0), CHAN5G(56, 0),
240 CHAN5G(60, 0), CHAN5G(64, 0),
241 CHAN5G(100, 0), CHAN5G(104, 0),
242 CHAN5G(108, 0), CHAN5G(112, 0),
243 CHAN5G(116, 0), CHAN5G(120, 0),
244 CHAN5G(124, 0), CHAN5G(128, 0),
245 CHAN5G(132, 0), CHAN5G(136, 0),
246 CHAN5G(140, 0), CHAN5G(149, 0),
247 CHAN5G(153, 0), CHAN5G(157, 0),
248 CHAN5G(161, 0), CHAN5G(165, 0),
249 CHAN5G(184, 0), CHAN5G(188, 0),
250 CHAN5G(192, 0), CHAN5G(196, 0),
251 CHAN5G(200, 0), CHAN5G(204, 0),
252 CHAN5G(208, 0), CHAN5G(212, 0),
257 static struct ieee80211_supported_band b43_band_5GHz_nphy = {
258 .band = IEEE80211_BAND_5GHZ,
259 .channels = b43_5ghz_nphy_chantable,
260 .n_channels = ARRAY_SIZE(b43_5ghz_nphy_chantable),
261 .bitrates = b43_a_ratetable,
262 .n_bitrates = b43_a_ratetable_size,
265 static struct ieee80211_supported_band b43_band_5GHz_aphy = {
266 .band = IEEE80211_BAND_5GHZ,
267 .channels = b43_5ghz_aphy_chantable,
268 .n_channels = ARRAY_SIZE(b43_5ghz_aphy_chantable),
269 .bitrates = b43_a_ratetable,
270 .n_bitrates = b43_a_ratetable_size,
273 static struct ieee80211_supported_band b43_band_2GHz = {
274 .band = IEEE80211_BAND_2GHZ,
275 .channels = b43_2ghz_chantable,
276 .n_channels = ARRAY_SIZE(b43_2ghz_chantable),
277 .bitrates = b43_g_ratetable,
278 .n_bitrates = b43_g_ratetable_size,
281 static void b43_wireless_core_exit(struct b43_wldev *dev);
282 static int b43_wireless_core_init(struct b43_wldev *dev);
283 static void b43_wireless_core_stop(struct b43_wldev *dev);
284 static int b43_wireless_core_start(struct b43_wldev *dev);
286 static int b43_ratelimit(struct b43_wl *wl)
288 if (!wl || !wl->current_dev)
290 if (b43_status(wl->current_dev) < B43_STAT_STARTED)
292 /* We are up and running.
293 * Ratelimit the messages to avoid DoS over the net. */
294 return net_ratelimit();
297 void b43info(struct b43_wl *wl, const char *fmt, ...)
301 if (!b43_ratelimit(wl))
304 printk(KERN_INFO "b43-%s: ",
305 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
310 void b43err(struct b43_wl *wl, const char *fmt, ...)
314 if (!b43_ratelimit(wl))
317 printk(KERN_ERR "b43-%s ERROR: ",
318 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
323 void b43warn(struct b43_wl *wl, const char *fmt, ...)
327 if (!b43_ratelimit(wl))
330 printk(KERN_WARNING "b43-%s warning: ",
331 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
337 void b43dbg(struct b43_wl *wl, const char *fmt, ...)
342 printk(KERN_DEBUG "b43-%s debug: ",
343 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
349 static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val)
353 B43_WARN_ON(offset % 4 != 0);
355 macctl = b43_read32(dev, B43_MMIO_MACCTL);
356 if (macctl & B43_MACCTL_BE)
359 b43_write32(dev, B43_MMIO_RAM_CONTROL, offset);
361 b43_write32(dev, B43_MMIO_RAM_DATA, val);
364 static inline void b43_shm_control_word(struct b43_wldev *dev,
365 u16 routing, u16 offset)
369 /* "offset" is the WORD offset. */
373 b43_write32(dev, B43_MMIO_SHM_CONTROL, control);
376 u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset)
378 struct b43_wl *wl = dev->wl;
382 spin_lock_irqsave(&wl->shm_lock, flags);
383 if (routing == B43_SHM_SHARED) {
384 B43_WARN_ON(offset & 0x0001);
385 if (offset & 0x0003) {
386 /* Unaligned access */
387 b43_shm_control_word(dev, routing, offset >> 2);
388 ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
390 b43_shm_control_word(dev, routing, (offset >> 2) + 1);
391 ret |= b43_read16(dev, B43_MMIO_SHM_DATA);
397 b43_shm_control_word(dev, routing, offset);
398 ret = b43_read32(dev, B43_MMIO_SHM_DATA);
400 spin_unlock_irqrestore(&wl->shm_lock, flags);
405 u16 b43_shm_read16(struct b43_wldev * dev, u16 routing, u16 offset)
407 struct b43_wl *wl = dev->wl;
411 spin_lock_irqsave(&wl->shm_lock, flags);
412 if (routing == B43_SHM_SHARED) {
413 B43_WARN_ON(offset & 0x0001);
414 if (offset & 0x0003) {
415 /* Unaligned access */
416 b43_shm_control_word(dev, routing, offset >> 2);
417 ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
423 b43_shm_control_word(dev, routing, offset);
424 ret = b43_read16(dev, B43_MMIO_SHM_DATA);
426 spin_unlock_irqrestore(&wl->shm_lock, flags);
431 void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value)
433 struct b43_wl *wl = dev->wl;
436 spin_lock_irqsave(&wl->shm_lock, flags);
437 if (routing == B43_SHM_SHARED) {
438 B43_WARN_ON(offset & 0x0001);
439 if (offset & 0x0003) {
440 /* Unaligned access */
441 b43_shm_control_word(dev, routing, offset >> 2);
442 b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED,
443 (value >> 16) & 0xffff);
444 b43_shm_control_word(dev, routing, (offset >> 2) + 1);
445 b43_write16(dev, B43_MMIO_SHM_DATA, value & 0xffff);
450 b43_shm_control_word(dev, routing, offset);
451 b43_write32(dev, B43_MMIO_SHM_DATA, value);
453 spin_unlock_irqrestore(&wl->shm_lock, flags);
456 void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value)
458 struct b43_wl *wl = dev->wl;
461 spin_lock_irqsave(&wl->shm_lock, flags);
462 if (routing == B43_SHM_SHARED) {
463 B43_WARN_ON(offset & 0x0001);
464 if (offset & 0x0003) {
465 /* Unaligned access */
466 b43_shm_control_word(dev, routing, offset >> 2);
467 b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value);
472 b43_shm_control_word(dev, routing, offset);
473 b43_write16(dev, B43_MMIO_SHM_DATA, value);
475 spin_unlock_irqrestore(&wl->shm_lock, flags);
479 u64 b43_hf_read(struct b43_wldev * dev)
483 ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI);
485 ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI);
487 ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO);
492 /* Write HostFlags */
493 void b43_hf_write(struct b43_wldev *dev, u64 value)
497 lo = (value & 0x00000000FFFFULL);
498 mi = (value & 0x0000FFFF0000ULL) >> 16;
499 hi = (value & 0xFFFF00000000ULL) >> 32;
500 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO, lo);
501 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI, mi);
502 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi);
505 void b43_tsf_read(struct b43_wldev *dev, u64 * tsf)
507 /* We need to be careful. As we read the TSF from multiple
508 * registers, we should take care of register overflows.
509 * In theory, the whole tsf read process should be atomic.
510 * We try to be atomic here, by restaring the read process,
511 * if any of the high registers changed (overflew).
513 if (dev->dev->id.revision >= 3) {
514 u32 low, high, high2;
517 high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH);
518 low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW);
519 high2 = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH);
520 } while (unlikely(high != high2));
528 u16 test1, test2, test3;
531 v3 = b43_read16(dev, B43_MMIO_TSF_3);
532 v2 = b43_read16(dev, B43_MMIO_TSF_2);
533 v1 = b43_read16(dev, B43_MMIO_TSF_1);
534 v0 = b43_read16(dev, B43_MMIO_TSF_0);
536 test3 = b43_read16(dev, B43_MMIO_TSF_3);
537 test2 = b43_read16(dev, B43_MMIO_TSF_2);
538 test1 = b43_read16(dev, B43_MMIO_TSF_1);
539 } while (v3 != test3 || v2 != test2 || v1 != test1);
553 static void b43_time_lock(struct b43_wldev *dev)
557 macctl = b43_read32(dev, B43_MMIO_MACCTL);
558 macctl |= B43_MACCTL_TBTTHOLD;
559 b43_write32(dev, B43_MMIO_MACCTL, macctl);
560 /* Commit the write */
561 b43_read32(dev, B43_MMIO_MACCTL);
564 static void b43_time_unlock(struct b43_wldev *dev)
568 macctl = b43_read32(dev, B43_MMIO_MACCTL);
569 macctl &= ~B43_MACCTL_TBTTHOLD;
570 b43_write32(dev, B43_MMIO_MACCTL, macctl);
571 /* Commit the write */
572 b43_read32(dev, B43_MMIO_MACCTL);
575 static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf)
577 /* Be careful with the in-progress timer.
578 * First zero out the low register, so we have a full
579 * register-overflow duration to complete the operation.
581 if (dev->dev->id.revision >= 3) {
582 u32 lo = (tsf & 0x00000000FFFFFFFFULL);
583 u32 hi = (tsf & 0xFFFFFFFF00000000ULL) >> 32;
585 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, 0);
587 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, hi);
589 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, lo);
591 u16 v0 = (tsf & 0x000000000000FFFFULL);
592 u16 v1 = (tsf & 0x00000000FFFF0000ULL) >> 16;
593 u16 v2 = (tsf & 0x0000FFFF00000000ULL) >> 32;
594 u16 v3 = (tsf & 0xFFFF000000000000ULL) >> 48;
596 b43_write16(dev, B43_MMIO_TSF_0, 0);
598 b43_write16(dev, B43_MMIO_TSF_3, v3);
600 b43_write16(dev, B43_MMIO_TSF_2, v2);
602 b43_write16(dev, B43_MMIO_TSF_1, v1);
604 b43_write16(dev, B43_MMIO_TSF_0, v0);
608 void b43_tsf_write(struct b43_wldev *dev, u64 tsf)
611 b43_tsf_write_locked(dev, tsf);
612 b43_time_unlock(dev);
616 void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 * mac)
618 static const u8 zero_addr[ETH_ALEN] = { 0 };
625 b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset);
629 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
632 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
635 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
638 static void b43_write_mac_bssid_templates(struct b43_wldev *dev)
642 u8 mac_bssid[ETH_ALEN * 2];
646 bssid = dev->wl->bssid;
647 mac = dev->wl->mac_addr;
649 b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid);
651 memcpy(mac_bssid, mac, ETH_ALEN);
652 memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN);
654 /* Write our MAC address and BSSID to template ram */
655 for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) {
656 tmp = (u32) (mac_bssid[i + 0]);
657 tmp |= (u32) (mac_bssid[i + 1]) << 8;
658 tmp |= (u32) (mac_bssid[i + 2]) << 16;
659 tmp |= (u32) (mac_bssid[i + 3]) << 24;
660 b43_ram_write(dev, 0x20 + i, tmp);
664 static void b43_upload_card_macaddress(struct b43_wldev *dev)
666 b43_write_mac_bssid_templates(dev);
667 b43_macfilter_set(dev, B43_MACFILTER_SELF, dev->wl->mac_addr);
670 static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time)
672 /* slot_time is in usec. */
673 if (dev->phy.type != B43_PHYTYPE_G)
675 b43_write16(dev, 0x684, 510 + slot_time);
676 b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time);
679 static void b43_short_slot_timing_enable(struct b43_wldev *dev)
681 b43_set_slot_time(dev, 9);
685 static void b43_short_slot_timing_disable(struct b43_wldev *dev)
687 b43_set_slot_time(dev, 20);
691 /* Enable a Generic IRQ. "mask" is the mask of which IRQs to enable.
692 * Returns the _previously_ enabled IRQ mask.
694 static inline u32 b43_interrupt_enable(struct b43_wldev *dev, u32 mask)
698 old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
699 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask | mask);
704 /* Disable a Generic IRQ. "mask" is the mask of which IRQs to disable.
705 * Returns the _previously_ enabled IRQ mask.
707 static inline u32 b43_interrupt_disable(struct b43_wldev *dev, u32 mask)
711 old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
712 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask & ~mask);
717 /* Synchronize IRQ top- and bottom-half.
718 * IRQs must be masked before calling this.
719 * This must not be called with the irq_lock held.
721 static void b43_synchronize_irq(struct b43_wldev *dev)
723 synchronize_irq(dev->dev->irq);
724 tasklet_kill(&dev->isr_tasklet);
727 /* DummyTransmission function, as documented on
728 * http://bcm-specs.sipsolutions.net/DummyTransmission
730 void b43_dummy_transmission(struct b43_wldev *dev)
732 struct b43_wl *wl = dev->wl;
733 struct b43_phy *phy = &dev->phy;
734 unsigned int i, max_loop;
747 buffer[0] = 0x000201CC;
752 buffer[0] = 0x000B846E;
759 spin_lock_irq(&wl->irq_lock);
760 write_lock(&wl->tx_lock);
762 for (i = 0; i < 5; i++)
763 b43_ram_write(dev, i * 4, buffer[i]);
766 b43_read32(dev, B43_MMIO_MACCTL);
768 b43_write16(dev, 0x0568, 0x0000);
769 b43_write16(dev, 0x07C0, 0x0000);
770 value = ((phy->type == B43_PHYTYPE_A) ? 1 : 0);
771 b43_write16(dev, 0x050C, value);
772 b43_write16(dev, 0x0508, 0x0000);
773 b43_write16(dev, 0x050A, 0x0000);
774 b43_write16(dev, 0x054C, 0x0000);
775 b43_write16(dev, 0x056A, 0x0014);
776 b43_write16(dev, 0x0568, 0x0826);
777 b43_write16(dev, 0x0500, 0x0000);
778 b43_write16(dev, 0x0502, 0x0030);
780 if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
781 b43_radio_write16(dev, 0x0051, 0x0017);
782 for (i = 0x00; i < max_loop; i++) {
783 value = b43_read16(dev, 0x050E);
788 for (i = 0x00; i < 0x0A; i++) {
789 value = b43_read16(dev, 0x050E);
794 for (i = 0x00; i < 0x0A; i++) {
795 value = b43_read16(dev, 0x0690);
796 if (!(value & 0x0100))
800 if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
801 b43_radio_write16(dev, 0x0051, 0x0037);
803 write_unlock(&wl->tx_lock);
804 spin_unlock_irq(&wl->irq_lock);
807 static void key_write(struct b43_wldev *dev,
808 u8 index, u8 algorithm, const u8 * key)
815 /* Key index/algo block */
816 kidx = b43_kidx_to_fw(dev, index);
817 value = ((kidx << 4) | algorithm);
818 b43_shm_write16(dev, B43_SHM_SHARED,
819 B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value);
821 /* Write the key to the Key Table Pointer offset */
822 offset = dev->ktp + (index * B43_SEC_KEYSIZE);
823 for (i = 0; i < B43_SEC_KEYSIZE; i += 2) {
825 value |= (u16) (key[i + 1]) << 8;
826 b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value);
830 static void keymac_write(struct b43_wldev *dev, u8 index, const u8 * addr)
832 u32 addrtmp[2] = { 0, 0, };
833 u8 per_sta_keys_start = 8;
835 if (b43_new_kidx_api(dev))
836 per_sta_keys_start = 4;
838 B43_WARN_ON(index < per_sta_keys_start);
839 /* We have two default TX keys and possibly two default RX keys.
840 * Physical mac 0 is mapped to physical key 4 or 8, depending
841 * on the firmware version.
842 * So we must adjust the index here.
844 index -= per_sta_keys_start;
847 addrtmp[0] = addr[0];
848 addrtmp[0] |= ((u32) (addr[1]) << 8);
849 addrtmp[0] |= ((u32) (addr[2]) << 16);
850 addrtmp[0] |= ((u32) (addr[3]) << 24);
851 addrtmp[1] = addr[4];
852 addrtmp[1] |= ((u32) (addr[5]) << 8);
855 if (dev->dev->id.revision >= 5) {
856 /* Receive match transmitter address mechanism */
857 b43_shm_write32(dev, B43_SHM_RCMTA,
858 (index * 2) + 0, addrtmp[0]);
859 b43_shm_write16(dev, B43_SHM_RCMTA,
860 (index * 2) + 1, addrtmp[1]);
862 /* RXE (Receive Engine) and
863 * PSM (Programmable State Machine) mechanism
866 /* TODO write to RCM 16, 19, 22 and 25 */
868 b43_shm_write32(dev, B43_SHM_SHARED,
869 B43_SHM_SH_PSM + (index * 6) + 0,
871 b43_shm_write16(dev, B43_SHM_SHARED,
872 B43_SHM_SH_PSM + (index * 6) + 4,
878 static void do_key_write(struct b43_wldev *dev,
879 u8 index, u8 algorithm,
880 const u8 * key, size_t key_len, const u8 * mac_addr)
882 u8 buf[B43_SEC_KEYSIZE] = { 0, };
883 u8 per_sta_keys_start = 8;
885 if (b43_new_kidx_api(dev))
886 per_sta_keys_start = 4;
888 B43_WARN_ON(index >= dev->max_nr_keys);
889 B43_WARN_ON(key_len > B43_SEC_KEYSIZE);
891 if (index >= per_sta_keys_start)
892 keymac_write(dev, index, NULL); /* First zero out mac. */
894 memcpy(buf, key, key_len);
895 key_write(dev, index, algorithm, buf);
896 if (index >= per_sta_keys_start)
897 keymac_write(dev, index, mac_addr);
899 dev->key[index].algorithm = algorithm;
902 static int b43_key_write(struct b43_wldev *dev,
903 int index, u8 algorithm,
904 const u8 * key, size_t key_len,
906 struct ieee80211_key_conf *keyconf)
911 if (key_len > B43_SEC_KEYSIZE)
913 for (i = 0; i < dev->max_nr_keys; i++) {
914 /* Check that we don't already have this key. */
915 B43_WARN_ON(dev->key[i].keyconf == keyconf);
918 /* Either pairwise key or address is 00:00:00:00:00:00
919 * for transmit-only keys. Search the index. */
920 if (b43_new_kidx_api(dev))
924 for (i = sta_keys_start; i < dev->max_nr_keys; i++) {
925 if (!dev->key[i].keyconf) {
932 b43err(dev->wl, "Out of hardware key memory\n");
936 B43_WARN_ON(index > 3);
938 do_key_write(dev, index, algorithm, key, key_len, mac_addr);
939 if ((index <= 3) && !b43_new_kidx_api(dev)) {
941 B43_WARN_ON(mac_addr);
942 do_key_write(dev, index + 4, algorithm, key, key_len, NULL);
944 keyconf->hw_key_idx = index;
945 dev->key[index].keyconf = keyconf;
950 static int b43_key_clear(struct b43_wldev *dev, int index)
952 if (B43_WARN_ON((index < 0) || (index >= dev->max_nr_keys)))
954 do_key_write(dev, index, B43_SEC_ALGO_NONE,
955 NULL, B43_SEC_KEYSIZE, NULL);
956 if ((index <= 3) && !b43_new_kidx_api(dev)) {
957 do_key_write(dev, index + 4, B43_SEC_ALGO_NONE,
958 NULL, B43_SEC_KEYSIZE, NULL);
960 dev->key[index].keyconf = NULL;
965 static void b43_clear_keys(struct b43_wldev *dev)
969 for (i = 0; i < dev->max_nr_keys; i++)
970 b43_key_clear(dev, i);
973 void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags)
981 B43_WARN_ON((ps_flags & B43_PS_ENABLED) &&
982 (ps_flags & B43_PS_DISABLED));
983 B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP));
985 if (ps_flags & B43_PS_ENABLED) {
987 } else if (ps_flags & B43_PS_DISABLED) {
990 //TODO: If powersave is not off and FIXME is not set and we are not in adhoc
991 // and thus is not an AP and we are associated, set bit 25
993 if (ps_flags & B43_PS_AWAKE) {
995 } else if (ps_flags & B43_PS_ASLEEP) {
998 //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME,
999 // or we are associated, or FIXME, or the latest PS-Poll packet sent was
1000 // successful, set bit26
1003 /* FIXME: For now we force awake-on and hwps-off */
1007 macctl = b43_read32(dev, B43_MMIO_MACCTL);
1009 macctl |= B43_MACCTL_HWPS;
1011 macctl &= ~B43_MACCTL_HWPS;
1013 macctl |= B43_MACCTL_AWAKE;
1015 macctl &= ~B43_MACCTL_AWAKE;
1016 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1018 b43_read32(dev, B43_MMIO_MACCTL);
1019 if (awake && dev->dev->id.revision >= 5) {
1020 /* Wait for the microcode to wake up. */
1021 for (i = 0; i < 100; i++) {
1022 ucstat = b43_shm_read16(dev, B43_SHM_SHARED,
1023 B43_SHM_SH_UCODESTAT);
1024 if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP)
1031 /* Turn the Analog ON/OFF */
1032 static void b43_switch_analog(struct b43_wldev *dev, int on)
1034 switch (dev->phy.type) {
1037 b43_write16(dev, B43_MMIO_PHY0, on ? 0 : 0xF4);
1040 b43_phy_write(dev, B43_NPHY_AFECTL_OVER,
1048 void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags)
1053 flags |= B43_TMSLOW_PHYCLKEN;
1054 flags |= B43_TMSLOW_PHYRESET;
1055 ssb_device_enable(dev->dev, flags);
1056 msleep(2); /* Wait for the PLL to turn on. */
1058 /* Now take the PHY out of Reset again */
1059 tmslow = ssb_read32(dev->dev, SSB_TMSLOW);
1060 tmslow |= SSB_TMSLOW_FGC;
1061 tmslow &= ~B43_TMSLOW_PHYRESET;
1062 ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
1063 ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
1065 tmslow &= ~SSB_TMSLOW_FGC;
1066 ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
1067 ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
1070 /* Turn Analog ON */
1071 b43_switch_analog(dev, 1);
1073 macctl = b43_read32(dev, B43_MMIO_MACCTL);
1074 macctl &= ~B43_MACCTL_GMODE;
1075 if (flags & B43_TMSLOW_GMODE)
1076 macctl |= B43_MACCTL_GMODE;
1077 macctl |= B43_MACCTL_IHR_ENABLED;
1078 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1081 static void handle_irq_transmit_status(struct b43_wldev *dev)
1085 struct b43_txstatus stat;
1088 v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1089 if (!(v0 & 0x00000001))
1091 v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1093 stat.cookie = (v0 >> 16);
1094 stat.seq = (v1 & 0x0000FFFF);
1095 stat.phy_stat = ((v1 & 0x00FF0000) >> 16);
1096 tmp = (v0 & 0x0000FFFF);
1097 stat.frame_count = ((tmp & 0xF000) >> 12);
1098 stat.rts_count = ((tmp & 0x0F00) >> 8);
1099 stat.supp_reason = ((tmp & 0x001C) >> 2);
1100 stat.pm_indicated = !!(tmp & 0x0080);
1101 stat.intermediate = !!(tmp & 0x0040);
1102 stat.for_ampdu = !!(tmp & 0x0020);
1103 stat.acked = !!(tmp & 0x0002);
1105 b43_handle_txstatus(dev, &stat);
1109 static void drain_txstatus_queue(struct b43_wldev *dev)
1113 if (dev->dev->id.revision < 5)
1115 /* Read all entries from the microcode TXstatus FIFO
1116 * and throw them away.
1119 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1120 if (!(dummy & 0x00000001))
1122 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1126 static u32 b43_jssi_read(struct b43_wldev *dev)
1130 val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A);
1132 val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088);
1137 static void b43_jssi_write(struct b43_wldev *dev, u32 jssi)
1139 b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF));
1140 b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16);
1143 static void b43_generate_noise_sample(struct b43_wldev *dev)
1145 b43_jssi_write(dev, 0x7F7F7F7F);
1146 b43_write32(dev, B43_MMIO_MACCMD,
1147 b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE);
1150 static void b43_calculate_link_quality(struct b43_wldev *dev)
1152 /* Top half of Link Quality calculation. */
1154 if (dev->noisecalc.calculation_running)
1156 dev->noisecalc.calculation_running = 1;
1157 dev->noisecalc.nr_samples = 0;
1159 b43_generate_noise_sample(dev);
1162 static void handle_irq_noise(struct b43_wldev *dev)
1164 struct b43_phy *phy = &dev->phy;
1170 /* Bottom half of Link Quality calculation. */
1172 /* Possible race condition: It might be possible that the user
1173 * changed to a different channel in the meantime since we
1174 * started the calculation. We ignore that fact, since it's
1175 * not really that much of a problem. The background noise is
1176 * an estimation only anyway. Slightly wrong results will get damped
1177 * by the averaging of the 8 sample rounds. Additionally the
1178 * value is shortlived. So it will be replaced by the next noise
1179 * calculation round soon. */
1181 B43_WARN_ON(!dev->noisecalc.calculation_running);
1182 *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev));
1183 if (noise[0] == 0x7F || noise[1] == 0x7F ||
1184 noise[2] == 0x7F || noise[3] == 0x7F)
1187 /* Get the noise samples. */
1188 B43_WARN_ON(dev->noisecalc.nr_samples >= 8);
1189 i = dev->noisecalc.nr_samples;
1190 noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1191 noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1192 noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1193 noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1194 dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]];
1195 dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]];
1196 dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]];
1197 dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]];
1198 dev->noisecalc.nr_samples++;
1199 if (dev->noisecalc.nr_samples == 8) {
1200 /* Calculate the Link Quality by the noise samples. */
1202 for (i = 0; i < 8; i++) {
1203 for (j = 0; j < 4; j++)
1204 average += dev->noisecalc.samples[i][j];
1210 tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C);
1211 tmp = (tmp / 128) & 0x1F;
1221 dev->stats.link_noise = average;
1222 dev->noisecalc.calculation_running = 0;
1226 b43_generate_noise_sample(dev);
1229 static void handle_irq_tbtt_indication(struct b43_wldev *dev)
1231 if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) {
1234 if (1 /*FIXME: the last PSpoll frame was sent successfully */ )
1235 b43_power_saving_ctl_bits(dev, 0);
1237 if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS))
1241 static void handle_irq_atim_end(struct b43_wldev *dev)
1243 if (dev->dfq_valid) {
1244 b43_write32(dev, B43_MMIO_MACCMD,
1245 b43_read32(dev, B43_MMIO_MACCMD)
1246 | B43_MACCMD_DFQ_VALID);
1251 static void handle_irq_pmq(struct b43_wldev *dev)
1258 tmp = b43_read32(dev, B43_MMIO_PS_STATUS);
1259 if (!(tmp & 0x00000008))
1262 /* 16bit write is odd, but correct. */
1263 b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002);
1266 static void b43_write_template_common(struct b43_wldev *dev,
1267 const u8 * data, u16 size,
1269 u16 shm_size_offset, u8 rate)
1272 struct b43_plcp_hdr4 plcp;
1275 b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
1276 b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data));
1277 ram_offset += sizeof(u32);
1278 /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet.
1279 * So leave the first two bytes of the next write blank.
1281 tmp = (u32) (data[0]) << 16;
1282 tmp |= (u32) (data[1]) << 24;
1283 b43_ram_write(dev, ram_offset, tmp);
1284 ram_offset += sizeof(u32);
1285 for (i = 2; i < size; i += sizeof(u32)) {
1286 tmp = (u32) (data[i + 0]);
1288 tmp |= (u32) (data[i + 1]) << 8;
1290 tmp |= (u32) (data[i + 2]) << 16;
1292 tmp |= (u32) (data[i + 3]) << 24;
1293 b43_ram_write(dev, ram_offset + i - 2, tmp);
1295 b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset,
1296 size + sizeof(struct b43_plcp_hdr6));
1299 /* Check if the use of the antenna that ieee80211 told us to
1300 * use is possible. This will fall back to DEFAULT.
1301 * "antenna_nr" is the antenna identifier we got from ieee80211. */
1302 u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev,
1307 if (antenna_nr == 0) {
1308 /* Zero means "use default antenna". That's always OK. */
1312 /* Get the mask of available antennas. */
1314 antenna_mask = dev->dev->bus->sprom.ant_available_bg;
1316 antenna_mask = dev->dev->bus->sprom.ant_available_a;
1318 if (!(antenna_mask & (1 << (antenna_nr - 1)))) {
1319 /* This antenna is not available. Fall back to default. */
1326 static int b43_antenna_from_ieee80211(struct b43_wldev *dev, u8 antenna)
1328 antenna = b43_ieee80211_antenna_sanitize(dev, antenna);
1330 case 0: /* default/diversity */
1331 return B43_ANTENNA_DEFAULT;
1332 case 1: /* Antenna 0 */
1333 return B43_ANTENNA0;
1334 case 2: /* Antenna 1 */
1335 return B43_ANTENNA1;
1336 case 3: /* Antenna 2 */
1337 return B43_ANTENNA2;
1338 case 4: /* Antenna 3 */
1339 return B43_ANTENNA3;
1341 return B43_ANTENNA_DEFAULT;
1345 /* Convert a b43 antenna number value to the PHY TX control value. */
1346 static u16 b43_antenna_to_phyctl(int antenna)
1350 return B43_TXH_PHY_ANT0;
1352 return B43_TXH_PHY_ANT1;
1354 return B43_TXH_PHY_ANT2;
1356 return B43_TXH_PHY_ANT3;
1357 case B43_ANTENNA_AUTO:
1358 return B43_TXH_PHY_ANT01AUTO;
1364 static void b43_write_beacon_template(struct b43_wldev *dev,
1366 u16 shm_size_offset)
1368 unsigned int i, len, variable_len;
1369 const struct ieee80211_mgmt *bcn;
1375 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon);
1377 bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data);
1378 len = min((size_t) dev->wl->current_beacon->len,
1379 0x200 - sizeof(struct b43_plcp_hdr6));
1380 rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value;
1382 b43_write_template_common(dev, (const u8 *)bcn,
1383 len, ram_offset, shm_size_offset, rate);
1385 /* Write the PHY TX control parameters. */
1386 antenna = b43_antenna_from_ieee80211(dev, info->antenna_sel_tx);
1387 antenna = b43_antenna_to_phyctl(antenna);
1388 ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL);
1389 /* We can't send beacons with short preamble. Would get PHY errors. */
1390 ctl &= ~B43_TXH_PHY_SHORTPRMBL;
1391 ctl &= ~B43_TXH_PHY_ANT;
1392 ctl &= ~B43_TXH_PHY_ENC;
1394 if (b43_is_cck_rate(rate))
1395 ctl |= B43_TXH_PHY_ENC_CCK;
1397 ctl |= B43_TXH_PHY_ENC_OFDM;
1398 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl);
1400 /* Find the position of the TIM and the DTIM_period value
1401 * and write them to SHM. */
1402 ie = bcn->u.beacon.variable;
1403 variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
1404 for (i = 0; i < variable_len - 2; ) {
1405 uint8_t ie_id, ie_len;
1412 /* This is the TIM Information Element */
1414 /* Check whether the ie_len is in the beacon data range. */
1415 if (variable_len < ie_len + 2 + i)
1417 /* A valid TIM is at least 4 bytes long. */
1422 tim_position = sizeof(struct b43_plcp_hdr6);
1423 tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable);
1426 dtim_period = ie[i + 3];
1428 b43_shm_write16(dev, B43_SHM_SHARED,
1429 B43_SHM_SH_TIMBPOS, tim_position);
1430 b43_shm_write16(dev, B43_SHM_SHARED,
1431 B43_SHM_SH_DTIMPER, dtim_period);
1438 * If ucode wants to modify TIM do it behind the beacon, this
1439 * will happen, for example, when doing mesh networking.
1441 b43_shm_write16(dev, B43_SHM_SHARED,
1443 len + sizeof(struct b43_plcp_hdr6));
1444 b43_shm_write16(dev, B43_SHM_SHARED,
1445 B43_SHM_SH_DTIMPER, 0);
1447 b43dbg(dev->wl, "Updated beacon template at 0x%x\n", ram_offset);
1450 static void b43_write_probe_resp_plcp(struct b43_wldev *dev,
1451 u16 shm_offset, u16 size,
1452 struct ieee80211_rate *rate)
1454 struct b43_plcp_hdr4 plcp;
1459 b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate->hw_value);
1460 dur = ieee80211_generic_frame_duration(dev->wl->hw,
1463 /* Write PLCP in two parts and timing for packet transfer */
1464 tmp = le32_to_cpu(plcp.data);
1465 b43_shm_write16(dev, B43_SHM_SHARED, shm_offset, tmp & 0xFFFF);
1466 b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 2, tmp >> 16);
1467 b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 6, le16_to_cpu(dur));
1470 /* Instead of using custom probe response template, this function
1471 * just patches custom beacon template by:
1472 * 1) Changing packet type
1473 * 2) Patching duration field
1476 static const u8 * b43_generate_probe_resp(struct b43_wldev *dev,
1478 struct ieee80211_rate *rate)
1482 u16 src_size, elem_size, src_pos, dest_pos;
1484 struct ieee80211_hdr *hdr;
1487 src_size = dev->wl->current_beacon->len;
1488 src_data = (const u8 *)dev->wl->current_beacon->data;
1490 /* Get the start offset of the variable IEs in the packet. */
1491 ie_start = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
1492 B43_WARN_ON(ie_start != offsetof(struct ieee80211_mgmt, u.beacon.variable));
1494 if (B43_WARN_ON(src_size < ie_start))
1497 dest_data = kmalloc(src_size, GFP_ATOMIC);
1498 if (unlikely(!dest_data))
1501 /* Copy the static data and all Information Elements, except the TIM. */
1502 memcpy(dest_data, src_data, ie_start);
1504 dest_pos = ie_start;
1505 for ( ; src_pos < src_size - 2; src_pos += elem_size) {
1506 elem_size = src_data[src_pos + 1] + 2;
1507 if (src_data[src_pos] == 5) {
1508 /* This is the TIM. */
1511 memcpy(dest_data + dest_pos, src_data + src_pos,
1513 dest_pos += elem_size;
1515 *dest_size = dest_pos;
1516 hdr = (struct ieee80211_hdr *)dest_data;
1518 /* Set the frame control. */
1519 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1520 IEEE80211_STYPE_PROBE_RESP);
1521 dur = ieee80211_generic_frame_duration(dev->wl->hw,
1522 dev->wl->vif, *dest_size,
1524 hdr->duration_id = dur;
1529 static void b43_write_probe_resp_template(struct b43_wldev *dev,
1531 u16 shm_size_offset,
1532 struct ieee80211_rate *rate)
1534 const u8 *probe_resp_data;
1537 size = dev->wl->current_beacon->len;
1538 probe_resp_data = b43_generate_probe_resp(dev, &size, rate);
1539 if (unlikely(!probe_resp_data))
1542 /* Looks like PLCP headers plus packet timings are stored for
1543 * all possible basic rates
1545 b43_write_probe_resp_plcp(dev, 0x31A, size, &b43_b_ratetable[0]);
1546 b43_write_probe_resp_plcp(dev, 0x32C, size, &b43_b_ratetable[1]);
1547 b43_write_probe_resp_plcp(dev, 0x33E, size, &b43_b_ratetable[2]);
1548 b43_write_probe_resp_plcp(dev, 0x350, size, &b43_b_ratetable[3]);
1550 size = min((size_t) size, 0x200 - sizeof(struct b43_plcp_hdr6));
1551 b43_write_template_common(dev, probe_resp_data,
1552 size, ram_offset, shm_size_offset,
1554 kfree(probe_resp_data);
1557 static void b43_upload_beacon0(struct b43_wldev *dev)
1559 struct b43_wl *wl = dev->wl;
1561 if (wl->beacon0_uploaded)
1563 b43_write_beacon_template(dev, 0x68, 0x18);
1564 /* FIXME: Probe resp upload doesn't really belong here,
1565 * but we don't use that feature anyway. */
1566 b43_write_probe_resp_template(dev, 0x268, 0x4A,
1567 &__b43_ratetable[3]);
1568 wl->beacon0_uploaded = 1;
1571 static void b43_upload_beacon1(struct b43_wldev *dev)
1573 struct b43_wl *wl = dev->wl;
1575 if (wl->beacon1_uploaded)
1577 b43_write_beacon_template(dev, 0x468, 0x1A);
1578 wl->beacon1_uploaded = 1;
1581 static void handle_irq_beacon(struct b43_wldev *dev)
1583 struct b43_wl *wl = dev->wl;
1584 u32 cmd, beacon0_valid, beacon1_valid;
1586 if (!b43_is_mode(wl, IEEE80211_IF_TYPE_AP) &&
1587 !b43_is_mode(wl, IEEE80211_IF_TYPE_MESH_POINT))
1590 /* This is the bottom half of the asynchronous beacon update. */
1592 /* Ignore interrupt in the future. */
1593 dev->irq_savedstate &= ~B43_IRQ_BEACON;
1595 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1596 beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID);
1597 beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID);
1599 /* Schedule interrupt manually, if busy. */
1600 if (beacon0_valid && beacon1_valid) {
1601 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON);
1602 dev->irq_savedstate |= B43_IRQ_BEACON;
1606 if (unlikely(wl->beacon_templates_virgin)) {
1607 /* We never uploaded a beacon before.
1608 * Upload both templates now, but only mark one valid. */
1609 wl->beacon_templates_virgin = 0;
1610 b43_upload_beacon0(dev);
1611 b43_upload_beacon1(dev);
1612 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1613 cmd |= B43_MACCMD_BEACON0_VALID;
1614 b43_write32(dev, B43_MMIO_MACCMD, cmd);
1616 if (!beacon0_valid) {
1617 b43_upload_beacon0(dev);
1618 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1619 cmd |= B43_MACCMD_BEACON0_VALID;
1620 b43_write32(dev, B43_MMIO_MACCMD, cmd);
1621 } else if (!beacon1_valid) {
1622 b43_upload_beacon1(dev);
1623 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1624 cmd |= B43_MACCMD_BEACON1_VALID;
1625 b43_write32(dev, B43_MMIO_MACCMD, cmd);
1630 static void b43_beacon_update_trigger_work(struct work_struct *work)
1632 struct b43_wl *wl = container_of(work, struct b43_wl,
1633 beacon_update_trigger);
1634 struct b43_wldev *dev;
1636 mutex_lock(&wl->mutex);
1637 dev = wl->current_dev;
1638 if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) {
1639 spin_lock_irq(&wl->irq_lock);
1640 /* update beacon right away or defer to irq */
1641 dev->irq_savedstate = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
1642 handle_irq_beacon(dev);
1643 /* The handler might have updated the IRQ mask. */
1644 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK,
1645 dev->irq_savedstate);
1647 spin_unlock_irq(&wl->irq_lock);
1649 mutex_unlock(&wl->mutex);
1652 /* Asynchronously update the packet templates in template RAM.
1653 * Locking: Requires wl->irq_lock to be locked. */
1654 static void b43_update_templates(struct b43_wl *wl, struct sk_buff *beacon)
1656 /* This is the top half of the ansynchronous beacon update.
1657 * The bottom half is the beacon IRQ.
1658 * Beacon update must be asynchronous to avoid sending an
1659 * invalid beacon. This can happen for example, if the firmware
1660 * transmits a beacon while we are updating it. */
1662 if (wl->current_beacon)
1663 dev_kfree_skb_any(wl->current_beacon);
1664 wl->current_beacon = beacon;
1665 wl->beacon0_uploaded = 0;
1666 wl->beacon1_uploaded = 0;
1667 queue_work(wl->hw->workqueue, &wl->beacon_update_trigger);
1670 static void b43_set_ssid(struct b43_wldev *dev, const u8 * ssid, u8 ssid_len)
1675 len = min((u16) ssid_len, (u16) 0x100);
1676 for (i = 0; i < len; i += sizeof(u32)) {
1677 tmp = (u32) (ssid[i + 0]);
1679 tmp |= (u32) (ssid[i + 1]) << 8;
1681 tmp |= (u32) (ssid[i + 2]) << 16;
1683 tmp |= (u32) (ssid[i + 3]) << 24;
1684 b43_shm_write32(dev, B43_SHM_SHARED, 0x380 + i, tmp);
1686 b43_shm_write16(dev, B43_SHM_SHARED, 0x48, len);
1689 static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int)
1692 if (dev->dev->id.revision >= 3) {
1693 b43_write32(dev, B43_MMIO_TSF_CFP_REP, (beacon_int << 16));
1694 b43_write32(dev, B43_MMIO_TSF_CFP_START, (beacon_int << 10));
1696 b43_write16(dev, 0x606, (beacon_int >> 6));
1697 b43_write16(dev, 0x610, beacon_int);
1699 b43_time_unlock(dev);
1700 b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int);
1703 static void b43_handle_firmware_panic(struct b43_wldev *dev)
1707 /* Read the register that contains the reason code for the panic. */
1708 reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_FWPANIC_REASON_REG);
1709 b43err(dev->wl, "Whoopsy, firmware panic! Reason: %u\n", reason);
1713 b43dbg(dev->wl, "The panic reason is unknown.\n");
1715 case B43_FWPANIC_DIE:
1716 /* Do not restart the controller or firmware.
1717 * The device is nonfunctional from now on.
1718 * Restarting would result in this panic to trigger again,
1719 * so we avoid that recursion. */
1721 case B43_FWPANIC_RESTART:
1722 b43_controller_restart(dev, "Microcode panic");
1727 static void handle_irq_ucode_debug(struct b43_wldev *dev)
1729 unsigned int i, cnt;
1730 u16 reason, marker_id, marker_line;
1733 /* The proprietary firmware doesn't have this IRQ. */
1734 if (!dev->fw.opensource)
1737 /* Read the register that contains the reason code for this IRQ. */
1738 reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_DEBUGIRQ_REASON_REG);
1741 case B43_DEBUGIRQ_PANIC:
1742 b43_handle_firmware_panic(dev);
1744 case B43_DEBUGIRQ_DUMP_SHM:
1746 break; /* Only with driver debugging enabled. */
1747 buf = kmalloc(4096, GFP_ATOMIC);
1749 b43dbg(dev->wl, "SHM-dump: Failed to allocate memory\n");
1752 for (i = 0; i < 4096; i += 2) {
1753 u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, i);
1754 buf[i / 2] = cpu_to_le16(tmp);
1756 b43info(dev->wl, "Shared memory dump:\n");
1757 print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET,
1758 16, 2, buf, 4096, 1);
1761 case B43_DEBUGIRQ_DUMP_REGS:
1763 break; /* Only with driver debugging enabled. */
1764 b43info(dev->wl, "Microcode register dump:\n");
1765 for (i = 0, cnt = 0; i < 64; i++) {
1766 u16 tmp = b43_shm_read16(dev, B43_SHM_SCRATCH, i);
1769 printk("r%02u: 0x%04X ", i, tmp);
1778 case B43_DEBUGIRQ_MARKER:
1780 break; /* Only with driver debugging enabled. */
1781 marker_id = b43_shm_read16(dev, B43_SHM_SCRATCH,
1783 marker_line = b43_shm_read16(dev, B43_SHM_SCRATCH,
1784 B43_MARKER_LINE_REG);
1785 b43info(dev->wl, "The firmware just executed the MARKER(%u) "
1786 "at line number %u\n",
1787 marker_id, marker_line);
1790 b43dbg(dev->wl, "Debug-IRQ triggered for unknown reason: %u\n",
1794 /* Acknowledge the debug-IRQ, so the firmware can continue. */
1795 b43_shm_write16(dev, B43_SHM_SCRATCH,
1796 B43_DEBUGIRQ_REASON_REG, B43_DEBUGIRQ_ACK);
1799 /* Interrupt handler bottom-half */
1800 static void b43_interrupt_tasklet(struct b43_wldev *dev)
1803 u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
1804 u32 merged_dma_reason = 0;
1806 unsigned long flags;
1808 spin_lock_irqsave(&dev->wl->irq_lock, flags);
1810 B43_WARN_ON(b43_status(dev) != B43_STAT_STARTED);
1812 reason = dev->irq_reason;
1813 for (i = 0; i < ARRAY_SIZE(dma_reason); i++) {
1814 dma_reason[i] = dev->dma_reason[i];
1815 merged_dma_reason |= dma_reason[i];
1818 if (unlikely(reason & B43_IRQ_MAC_TXERR))
1819 b43err(dev->wl, "MAC transmission error\n");
1821 if (unlikely(reason & B43_IRQ_PHY_TXERR)) {
1822 b43err(dev->wl, "PHY transmission error\n");
1824 if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) {
1825 atomic_set(&dev->phy.txerr_cnt,
1826 B43_PHY_TX_BADNESS_LIMIT);
1827 b43err(dev->wl, "Too many PHY TX errors, "
1828 "restarting the controller\n");
1829 b43_controller_restart(dev, "PHY TX errors");
1833 if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK |
1834 B43_DMAIRQ_NONFATALMASK))) {
1835 if (merged_dma_reason & B43_DMAIRQ_FATALMASK) {
1836 b43err(dev->wl, "Fatal DMA error: "
1837 "0x%08X, 0x%08X, 0x%08X, "
1838 "0x%08X, 0x%08X, 0x%08X\n",
1839 dma_reason[0], dma_reason[1],
1840 dma_reason[2], dma_reason[3],
1841 dma_reason[4], dma_reason[5]);
1842 b43_controller_restart(dev, "DMA error");
1844 spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
1847 if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) {
1848 b43err(dev->wl, "DMA error: "
1849 "0x%08X, 0x%08X, 0x%08X, "
1850 "0x%08X, 0x%08X, 0x%08X\n",
1851 dma_reason[0], dma_reason[1],
1852 dma_reason[2], dma_reason[3],
1853 dma_reason[4], dma_reason[5]);
1857 if (unlikely(reason & B43_IRQ_UCODE_DEBUG))
1858 handle_irq_ucode_debug(dev);
1859 if (reason & B43_IRQ_TBTT_INDI)
1860 handle_irq_tbtt_indication(dev);
1861 if (reason & B43_IRQ_ATIM_END)
1862 handle_irq_atim_end(dev);
1863 if (reason & B43_IRQ_BEACON)
1864 handle_irq_beacon(dev);
1865 if (reason & B43_IRQ_PMQ)
1866 handle_irq_pmq(dev);
1867 if (reason & B43_IRQ_TXFIFO_FLUSH_OK)
1869 if (reason & B43_IRQ_NOISESAMPLE_OK)
1870 handle_irq_noise(dev);
1872 /* Check the DMA reason registers for received data. */
1873 if (dma_reason[0] & B43_DMAIRQ_RX_DONE) {
1874 if (b43_using_pio_transfers(dev))
1875 b43_pio_rx(dev->pio.rx_queue);
1877 b43_dma_rx(dev->dma.rx_ring);
1879 B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE);
1880 B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE);
1881 B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE);
1882 B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE);
1883 B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE);
1885 if (reason & B43_IRQ_TX_OK)
1886 handle_irq_transmit_status(dev);
1888 b43_interrupt_enable(dev, dev->irq_savedstate);
1890 spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
1893 static void b43_interrupt_ack(struct b43_wldev *dev, u32 reason)
1895 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason);
1897 b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]);
1898 b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]);
1899 b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]);
1900 b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]);
1901 b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]);
1902 b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]);
1905 /* Interrupt handler top-half */
1906 static irqreturn_t b43_interrupt_handler(int irq, void *dev_id)
1908 irqreturn_t ret = IRQ_NONE;
1909 struct b43_wldev *dev = dev_id;
1915 spin_lock(&dev->wl->irq_lock);
1917 if (b43_status(dev) < B43_STAT_STARTED)
1919 reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
1920 if (reason == 0xffffffff) /* shared IRQ */
1923 reason &= b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
1927 dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON)
1929 dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON)
1931 dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON)
1933 dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON)
1935 dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON)
1937 dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON)
1940 b43_interrupt_ack(dev, reason);
1941 /* disable all IRQs. They are enabled again in the bottom half. */
1942 dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL);
1943 /* save the reason code and call our bottom half. */
1944 dev->irq_reason = reason;
1945 tasklet_schedule(&dev->isr_tasklet);
1948 spin_unlock(&dev->wl->irq_lock);
1953 static void do_release_fw(struct b43_firmware_file *fw)
1955 release_firmware(fw->data);
1957 fw->filename = NULL;
1960 static void b43_release_firmware(struct b43_wldev *dev)
1962 do_release_fw(&dev->fw.ucode);
1963 do_release_fw(&dev->fw.pcm);
1964 do_release_fw(&dev->fw.initvals);
1965 do_release_fw(&dev->fw.initvals_band);
1968 static void b43_print_fw_helptext(struct b43_wl *wl, bool error)
1972 text = "You must go to "
1973 "http://linuxwireless.org/en/users/Drivers/b43#devicefirmware "
1974 "and download the latest firmware (version 4).\n";
1981 static int do_request_fw(struct b43_wldev *dev,
1983 struct b43_firmware_file *fw,
1986 char path[sizeof(modparam_fwpostfix) + 32];
1987 const struct firmware *blob;
1988 struct b43_fw_header *hdr;
1993 /* Don't fetch anything. Free possibly cached firmware. */
1998 if (strcmp(fw->filename, name) == 0)
1999 return 0; /* Already have this fw. */
2000 /* Free the cached firmware first. */
2004 snprintf(path, ARRAY_SIZE(path),
2006 modparam_fwpostfix, name);
2007 err = request_firmware(&blob, path, dev->dev->dev);
2008 if (err == -ENOENT) {
2010 b43err(dev->wl, "Firmware file \"%s\" not found\n",
2015 b43err(dev->wl, "Firmware file \"%s\" request failed (err=%d)\n",
2019 if (blob->size < sizeof(struct b43_fw_header))
2021 hdr = (struct b43_fw_header *)(blob->data);
2022 switch (hdr->type) {
2023 case B43_FW_TYPE_UCODE:
2024 case B43_FW_TYPE_PCM:
2025 size = be32_to_cpu(hdr->size);
2026 if (size != blob->size - sizeof(struct b43_fw_header))
2029 case B43_FW_TYPE_IV:
2038 fw->filename = name;
2043 b43err(dev->wl, "Firmware file \"%s\" format error.\n", path);
2044 release_firmware(blob);
2049 static int b43_request_firmware(struct b43_wldev *dev)
2051 struct b43_firmware *fw = &dev->fw;
2052 const u8 rev = dev->dev->id.revision;
2053 const char *filename;
2058 tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);
2059 if ((rev >= 5) && (rev <= 10))
2060 filename = "ucode5";
2061 else if ((rev >= 11) && (rev <= 12))
2062 filename = "ucode11";
2064 filename = "ucode13";
2067 err = do_request_fw(dev, filename, &fw->ucode, 0);
2072 if ((rev >= 5) && (rev <= 10))
2078 fw->pcm_request_failed = 0;
2079 err = do_request_fw(dev, filename, &fw->pcm, 1);
2080 if (err == -ENOENT) {
2081 /* We did not find a PCM file? Not fatal, but
2082 * core rev <= 10 must do without hwcrypto then. */
2083 fw->pcm_request_failed = 1;
2088 switch (dev->phy.type) {
2090 if ((rev >= 5) && (rev <= 10)) {
2091 if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
2092 filename = "a0g1initvals5";
2094 filename = "a0g0initvals5";
2096 goto err_no_initvals;
2099 if ((rev >= 5) && (rev <= 10))
2100 filename = "b0g0initvals5";
2102 filename = "b0g0initvals13";
2104 goto err_no_initvals;
2107 if ((rev >= 11) && (rev <= 12))
2108 filename = "n0initvals11";
2110 goto err_no_initvals;
2113 goto err_no_initvals;
2115 err = do_request_fw(dev, filename, &fw->initvals, 0);
2119 /* Get bandswitch initvals */
2120 switch (dev->phy.type) {
2122 if ((rev >= 5) && (rev <= 10)) {
2123 if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
2124 filename = "a0g1bsinitvals5";
2126 filename = "a0g0bsinitvals5";
2127 } else if (rev >= 11)
2130 goto err_no_initvals;
2133 if ((rev >= 5) && (rev <= 10))
2134 filename = "b0g0bsinitvals5";
2138 goto err_no_initvals;
2141 if ((rev >= 11) && (rev <= 12))
2142 filename = "n0bsinitvals11";
2144 goto err_no_initvals;
2147 goto err_no_initvals;
2149 err = do_request_fw(dev, filename, &fw->initvals_band, 0);
2156 b43_print_fw_helptext(dev->wl, 1);
2161 b43err(dev->wl, "No microcode available for core rev %u\n", rev);
2166 b43err(dev->wl, "No PCM available for core rev %u\n", rev);
2171 b43err(dev->wl, "No Initial Values firmware file for PHY %u, "
2172 "core rev %u\n", dev->phy.type, rev);
2176 b43_release_firmware(dev);
2180 static int b43_upload_microcode(struct b43_wldev *dev)
2182 const size_t hdr_len = sizeof(struct b43_fw_header);
2184 unsigned int i, len;
2185 u16 fwrev, fwpatch, fwdate, fwtime;
2189 /* Jump the microcode PSM to offset 0 */
2190 macctl = b43_read32(dev, B43_MMIO_MACCTL);
2191 B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN);
2192 macctl |= B43_MACCTL_PSM_JMP0;
2193 b43_write32(dev, B43_MMIO_MACCTL, macctl);
2194 /* Zero out all microcode PSM registers and shared memory. */
2195 for (i = 0; i < 64; i++)
2196 b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0);
2197 for (i = 0; i < 4096; i += 2)
2198 b43_shm_write16(dev, B43_SHM_SHARED, i, 0);
2200 /* Upload Microcode. */
2201 data = (__be32 *) (dev->fw.ucode.data->data + hdr_len);
2202 len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32);
2203 b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000);
2204 for (i = 0; i < len; i++) {
2205 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
2209 if (dev->fw.pcm.data) {
2210 /* Upload PCM data. */
2211 data = (__be32 *) (dev->fw.pcm.data->data + hdr_len);
2212 len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32);
2213 b43_shm_control_word(dev, B43_SHM_HW, 0x01EA);
2214 b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000);
2215 /* No need for autoinc bit in SHM_HW */
2216 b43_shm_control_word(dev, B43_SHM_HW, 0x01EB);
2217 for (i = 0; i < len; i++) {
2218 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
2223 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL);
2225 /* Start the microcode PSM */
2226 macctl = b43_read32(dev, B43_MMIO_MACCTL);
2227 macctl &= ~B43_MACCTL_PSM_JMP0;
2228 macctl |= B43_MACCTL_PSM_RUN;
2229 b43_write32(dev, B43_MMIO_MACCTL, macctl);
2231 /* Wait for the microcode to load and respond */
2234 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2235 if (tmp == B43_IRQ_MAC_SUSPENDED)
2239 b43err(dev->wl, "Microcode not responding\n");
2240 b43_print_fw_helptext(dev->wl, 1);
2244 msleep_interruptible(50);
2245 if (signal_pending(current)) {
2250 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */
2252 /* Get and check the revisions. */
2253 fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV);
2254 fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH);
2255 fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE);
2256 fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME);
2258 if (fwrev <= 0x128) {
2259 b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from "
2260 "binary drivers older than version 4.x is unsupported. "
2261 "You must upgrade your firmware files.\n");
2262 b43_print_fw_helptext(dev->wl, 1);
2266 dev->fw.rev = fwrev;
2267 dev->fw.patch = fwpatch;
2268 dev->fw.opensource = (fwdate == 0xFFFF);
2270 if (dev->fw.opensource) {
2271 /* Patchlevel info is encoded in the "time" field. */
2272 dev->fw.patch = fwtime;
2273 b43info(dev->wl, "Loading OpenSource firmware version %u.%u%s\n",
2274 dev->fw.rev, dev->fw.patch,
2275 dev->fw.pcm_request_failed ? " (Hardware crypto not supported)" : "");
2277 b43info(dev->wl, "Loading firmware version %u.%u "
2278 "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n",
2280 (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
2281 (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F);
2282 if (dev->fw.pcm_request_failed) {
2283 b43warn(dev->wl, "No \"pcm5.fw\" firmware file found. "
2284 "Hardware accelerated cryptography is disabled.\n");
2285 b43_print_fw_helptext(dev->wl, 0);
2289 if (b43_is_old_txhdr_format(dev)) {
2290 b43warn(dev->wl, "You are using an old firmware image. "
2291 "Support for old firmware will be removed in July 2008.\n");
2292 b43_print_fw_helptext(dev->wl, 0);
2298 macctl = b43_read32(dev, B43_MMIO_MACCTL);
2299 macctl &= ~B43_MACCTL_PSM_RUN;
2300 macctl |= B43_MACCTL_PSM_JMP0;
2301 b43_write32(dev, B43_MMIO_MACCTL, macctl);
2306 static int b43_write_initvals(struct b43_wldev *dev,
2307 const struct b43_iv *ivals,
2311 const struct b43_iv *iv;
2316 BUILD_BUG_ON(sizeof(struct b43_iv) != 6);
2318 for (i = 0; i < count; i++) {
2319 if (array_size < sizeof(iv->offset_size))
2321 array_size -= sizeof(iv->offset_size);
2322 offset = be16_to_cpu(iv->offset_size);
2323 bit32 = !!(offset & B43_IV_32BIT);
2324 offset &= B43_IV_OFFSET_MASK;
2325 if (offset >= 0x1000)
2330 if (array_size < sizeof(iv->data.d32))
2332 array_size -= sizeof(iv->data.d32);
2334 value = get_unaligned_be32(&iv->data.d32);
2335 b43_write32(dev, offset, value);
2337 iv = (const struct b43_iv *)((const uint8_t *)iv +
2343 if (array_size < sizeof(iv->data.d16))
2345 array_size -= sizeof(iv->data.d16);
2347 value = be16_to_cpu(iv->data.d16);
2348 b43_write16(dev, offset, value);
2350 iv = (const struct b43_iv *)((const uint8_t *)iv +
2361 b43err(dev->wl, "Initial Values Firmware file-format error.\n");
2362 b43_print_fw_helptext(dev->wl, 1);
2367 static int b43_upload_initvals(struct b43_wldev *dev)
2369 const size_t hdr_len = sizeof(struct b43_fw_header);
2370 const struct b43_fw_header *hdr;
2371 struct b43_firmware *fw = &dev->fw;
2372 const struct b43_iv *ivals;
2376 hdr = (const struct b43_fw_header *)(fw->initvals.data->data);
2377 ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len);
2378 count = be32_to_cpu(hdr->size);
2379 err = b43_write_initvals(dev, ivals, count,
2380 fw->initvals.data->size - hdr_len);
2383 if (fw->initvals_band.data) {
2384 hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data);
2385 ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len);
2386 count = be32_to_cpu(hdr->size);
2387 err = b43_write_initvals(dev, ivals, count,
2388 fw->initvals_band.data->size - hdr_len);
2397 /* Initialize the GPIOs
2398 * http://bcm-specs.sipsolutions.net/GPIO
2400 static int b43_gpio_init(struct b43_wldev *dev)
2402 struct ssb_bus *bus = dev->dev->bus;
2403 struct ssb_device *gpiodev, *pcidev = NULL;
2406 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2407 & ~B43_MACCTL_GPOUTSMSK);
2409 b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK)
2414 if (dev->dev->bus->chip_id == 0x4301) {
2418 if (0 /* FIXME: conditional unknown */ ) {
2419 b43_write16(dev, B43_MMIO_GPIO_MASK,
2420 b43_read16(dev, B43_MMIO_GPIO_MASK)
2425 if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL) {
2426 b43_write16(dev, B43_MMIO_GPIO_MASK,
2427 b43_read16(dev, B43_MMIO_GPIO_MASK)
2432 if (dev->dev->id.revision >= 2)
2433 mask |= 0x0010; /* FIXME: This is redundant. */
2435 #ifdef CONFIG_SSB_DRIVER_PCICORE
2436 pcidev = bus->pcicore.dev;
2438 gpiodev = bus->chipco.dev ? : pcidev;
2441 ssb_write32(gpiodev, B43_GPIO_CONTROL,
2442 (ssb_read32(gpiodev, B43_GPIO_CONTROL)
2448 /* Turn off all GPIO stuff. Call this on module unload, for example. */
2449 static void b43_gpio_cleanup(struct b43_wldev *dev)
2451 struct ssb_bus *bus = dev->dev->bus;
2452 struct ssb_device *gpiodev, *pcidev = NULL;
2454 #ifdef CONFIG_SSB_DRIVER_PCICORE
2455 pcidev = bus->pcicore.dev;
2457 gpiodev = bus->chipco.dev ? : pcidev;
2460 ssb_write32(gpiodev, B43_GPIO_CONTROL, 0);
2463 /* http://bcm-specs.sipsolutions.net/EnableMac */
2464 void b43_mac_enable(struct b43_wldev *dev)
2466 dev->mac_suspended--;
2467 B43_WARN_ON(dev->mac_suspended < 0);
2468 if (dev->mac_suspended == 0) {
2469 b43_write32(dev, B43_MMIO_MACCTL,
2470 b43_read32(dev, B43_MMIO_MACCTL)
2471 | B43_MACCTL_ENABLED);
2472 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON,
2473 B43_IRQ_MAC_SUSPENDED);
2475 b43_read32(dev, B43_MMIO_MACCTL);
2476 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2477 b43_power_saving_ctl_bits(dev, 0);
2481 /* http://bcm-specs.sipsolutions.net/SuspendMAC */
2482 void b43_mac_suspend(struct b43_wldev *dev)
2488 B43_WARN_ON(dev->mac_suspended < 0);
2490 if (dev->mac_suspended == 0) {
2491 b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
2492 b43_write32(dev, B43_MMIO_MACCTL,
2493 b43_read32(dev, B43_MMIO_MACCTL)
2494 & ~B43_MACCTL_ENABLED);
2495 /* force pci to flush the write */
2496 b43_read32(dev, B43_MMIO_MACCTL);
2497 for (i = 35; i; i--) {
2498 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2499 if (tmp & B43_IRQ_MAC_SUSPENDED)
2503 /* Hm, it seems this will take some time. Use msleep(). */
2504 for (i = 40; i; i--) {
2505 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2506 if (tmp & B43_IRQ_MAC_SUSPENDED)
2510 b43err(dev->wl, "MAC suspend failed\n");
2513 dev->mac_suspended++;
2516 static void b43_adjust_opmode(struct b43_wldev *dev)
2518 struct b43_wl *wl = dev->wl;
2522 ctl = b43_read32(dev, B43_MMIO_MACCTL);
2523 /* Reset status to STA infrastructure mode. */
2524 ctl &= ~B43_MACCTL_AP;
2525 ctl &= ~B43_MACCTL_KEEP_CTL;
2526 ctl &= ~B43_MACCTL_KEEP_BADPLCP;
2527 ctl &= ~B43_MACCTL_KEEP_BAD;
2528 ctl &= ~B43_MACCTL_PROMISC;
2529 ctl &= ~B43_MACCTL_BEACPROMISC;
2530 ctl |= B43_MACCTL_INFRA;
2532 if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP) ||
2533 b43_is_mode(wl, IEEE80211_IF_TYPE_MESH_POINT))
2534 ctl |= B43_MACCTL_AP;
2535 else if (b43_is_mode(wl, IEEE80211_IF_TYPE_IBSS))
2536 ctl &= ~B43_MACCTL_INFRA;
2538 if (wl->filter_flags & FIF_CONTROL)
2539 ctl |= B43_MACCTL_KEEP_CTL;
2540 if (wl->filter_flags & FIF_FCSFAIL)
2541 ctl |= B43_MACCTL_KEEP_BAD;
2542 if (wl->filter_flags & FIF_PLCPFAIL)
2543 ctl |= B43_MACCTL_KEEP_BADPLCP;
2544 if (wl->filter_flags & FIF_PROMISC_IN_BSS)
2545 ctl |= B43_MACCTL_PROMISC;
2546 if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
2547 ctl |= B43_MACCTL_BEACPROMISC;
2549 /* Workaround: On old hardware the HW-MAC-address-filter
2550 * doesn't work properly, so always run promisc in filter
2551 * it in software. */
2552 if (dev->dev->id.revision <= 4)
2553 ctl |= B43_MACCTL_PROMISC;
2555 b43_write32(dev, B43_MMIO_MACCTL, ctl);
2558 if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) {
2559 if (dev->dev->bus->chip_id == 0x4306 &&
2560 dev->dev->bus->chip_rev == 3)
2565 b43_write16(dev, 0x612, cfp_pretbtt);
2568 static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm)
2574 offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
2577 offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
2579 b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20,
2580 b43_shm_read16(dev, B43_SHM_SHARED, offset));
2583 static void b43_rate_memory_init(struct b43_wldev *dev)
2585 switch (dev->phy.type) {
2589 b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1);
2590 b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1);
2591 b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1);
2592 b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1);
2593 b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1);
2594 b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1);
2595 b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1);
2596 if (dev->phy.type == B43_PHYTYPE_A)
2600 b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0);
2601 b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0);
2602 b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0);
2603 b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0);
2610 /* Set the default values for the PHY TX Control Words. */
2611 static void b43_set_phytxctl_defaults(struct b43_wldev *dev)
2615 ctl |= B43_TXH_PHY_ENC_CCK;
2616 ctl |= B43_TXH_PHY_ANT01AUTO;
2617 ctl |= B43_TXH_PHY_TXPWR;
2619 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl);
2620 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, ctl);
2621 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, ctl);
2624 /* Set the TX-Antenna for management frames sent by firmware. */
2625 static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna)
2630 ant = b43_antenna_to_phyctl(antenna);
2633 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL);
2634 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
2635 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp);
2636 /* For Probe Resposes */
2637 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL);
2638 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
2639 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp);
2642 /* This is the opposite of b43_chip_init() */
2643 static void b43_chip_exit(struct b43_wldev *dev)
2645 b43_radio_turn_off(dev, 1);
2646 b43_gpio_cleanup(dev);
2647 b43_lo_g_cleanup(dev);
2648 /* firmware is released later */
2651 /* Initialize the chip
2652 * http://bcm-specs.sipsolutions.net/ChipInit
2654 static int b43_chip_init(struct b43_wldev *dev)
2656 struct b43_phy *phy = &dev->phy;
2658 u32 value32, macctl;
2661 /* Initialize the MAC control */
2662 macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED;
2664 macctl |= B43_MACCTL_GMODE;
2665 macctl |= B43_MACCTL_INFRA;
2666 b43_write32(dev, B43_MMIO_MACCTL, macctl);
2668 err = b43_request_firmware(dev);
2671 err = b43_upload_microcode(dev);
2673 goto out; /* firmware is released later */
2675 err = b43_gpio_init(dev);
2677 goto out; /* firmware is released later */
2679 err = b43_upload_initvals(dev);
2681 goto err_gpio_clean;
2682 b43_radio_turn_on(dev);
2684 b43_write16(dev, 0x03E6, 0x0000);
2685 err = b43_phy_init(dev);
2689 /* Select initial Interference Mitigation. */
2690 tmp = phy->interfmode;
2691 phy->interfmode = B43_INTERFMODE_NONE;
2692 b43_radio_set_interference_mitigation(dev, tmp);
2694 b43_set_rx_antenna(dev, B43_ANTENNA_DEFAULT);
2695 b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT);
2697 if (phy->type == B43_PHYTYPE_B) {
2698 value16 = b43_read16(dev, 0x005E);
2700 b43_write16(dev, 0x005E, value16);
2702 b43_write32(dev, 0x0100, 0x01000000);
2703 if (dev->dev->id.revision < 5)
2704 b43_write32(dev, 0x010C, 0x01000000);
2706 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2707 & ~B43_MACCTL_INFRA);
2708 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2709 | B43_MACCTL_INFRA);
2711 /* Probe Response Timeout value */
2712 /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
2713 b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000);
2715 /* Initially set the wireless operation mode. */
2716 b43_adjust_opmode(dev);
2718 if (dev->dev->id.revision < 3) {
2719 b43_write16(dev, 0x060E, 0x0000);
2720 b43_write16(dev, 0x0610, 0x8000);
2721 b43_write16(dev, 0x0604, 0x0000);
2722 b43_write16(dev, 0x0606, 0x0200);
2724 b43_write32(dev, 0x0188, 0x80000000);
2725 b43_write32(dev, 0x018C, 0x02000000);
2727 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000);
2728 b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
2729 b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
2730 b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
2731 b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
2732 b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
2733 b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
2735 value32 = ssb_read32(dev->dev, SSB_TMSLOW);
2736 value32 |= 0x00100000;
2737 ssb_write32(dev->dev, SSB_TMSLOW, value32);
2739 b43_write16(dev, B43_MMIO_POWERUP_DELAY,
2740 dev->dev->bus->chipco.fast_pwrup_delay);
2743 b43dbg(dev->wl, "Chip initialized\n");
2748 b43_radio_turn_off(dev, 1);
2750 b43_gpio_cleanup(dev);
2754 static void b43_periodic_every60sec(struct b43_wldev *dev)
2756 struct b43_phy *phy = &dev->phy;
2758 if (phy->type != B43_PHYTYPE_G)
2760 if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_RSSI) {
2761 b43_mac_suspend(dev);
2762 b43_calc_nrssi_slope(dev);
2763 if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 8)) {
2764 u8 old_chan = phy->channel;
2766 /* VCO Calibration */
2768 b43_radio_selectchannel(dev, 1, 0);
2770 b43_radio_selectchannel(dev, 13, 0);
2771 b43_radio_selectchannel(dev, old_chan, 0);
2773 b43_mac_enable(dev);
2777 static void b43_periodic_every30sec(struct b43_wldev *dev)
2779 /* Update device statistics. */
2780 b43_calculate_link_quality(dev);
2783 static void b43_periodic_every15sec(struct b43_wldev *dev)
2785 struct b43_phy *phy = &dev->phy;
2787 if (phy->type == B43_PHYTYPE_G) {
2788 //TODO: update_aci_moving_average
2789 if (phy->aci_enable && phy->aci_wlan_automatic) {
2790 b43_mac_suspend(dev);
2791 if (!phy->aci_enable && 1 /*TODO: not scanning? */ ) {
2792 if (0 /*TODO: bunch of conditions */ ) {
2793 b43_radio_set_interference_mitigation
2794 (dev, B43_INTERFMODE_MANUALWLAN);
2796 } else if (1 /*TODO*/) {
2798 if ((aci_average > 1000) && !(b43_radio_aci_scan(dev))) {
2799 b43_radio_set_interference_mitigation(dev,
2800 B43_INTERFMODE_NONE);
2804 b43_mac_enable(dev);
2805 } else if (phy->interfmode == B43_INTERFMODE_NONWLAN &&
2807 //TODO: implement rev1 workaround
2810 b43_phy_xmitpower(dev); //FIXME: unless scanning?
2811 b43_lo_g_maintanance_work(dev);
2812 //TODO for APHY (temperature?)
2814 atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
2818 static void do_periodic_work(struct b43_wldev *dev)
2822 state = dev->periodic_state;
2824 b43_periodic_every60sec(dev);
2826 b43_periodic_every30sec(dev);
2827 b43_periodic_every15sec(dev);
2830 /* Periodic work locking policy:
2831 * The whole periodic work handler is protected by
2832 * wl->mutex. If another lock is needed somewhere in the
2833 * pwork callchain, it's aquired in-place, where it's needed.
2835 static void b43_periodic_work_handler(struct work_struct *work)
2837 struct b43_wldev *dev = container_of(work, struct b43_wldev,
2838 periodic_work.work);
2839 struct b43_wl *wl = dev->wl;
2840 unsigned long delay;
2842 mutex_lock(&wl->mutex);
2844 if (unlikely(b43_status(dev) != B43_STAT_STARTED))
2846 if (b43_debug(dev, B43_DBG_PWORK_STOP))
2849 do_periodic_work(dev);
2851 dev->periodic_state++;
2853 if (b43_debug(dev, B43_DBG_PWORK_FAST))
2854 delay = msecs_to_jiffies(50);
2856 delay = round_jiffies_relative(HZ * 15);
2857 queue_delayed_work(wl->hw->workqueue, &dev->periodic_work, delay);
2859 mutex_unlock(&wl->mutex);
2862 static void b43_periodic_tasks_setup(struct b43_wldev *dev)
2864 struct delayed_work *work = &dev->periodic_work;
2866 dev->periodic_state = 0;
2867 INIT_DELAYED_WORK(work, b43_periodic_work_handler);
2868 queue_delayed_work(dev->wl->hw->workqueue, work, 0);
2871 /* Check if communication with the device works correctly. */
2872 static int b43_validate_chipaccess(struct b43_wldev *dev)
2876 backup = b43_shm_read32(dev, B43_SHM_SHARED, 0);
2878 /* Check for read/write and endianness problems. */
2879 b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55);
2880 if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55)
2882 b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA);
2883 if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA)
2886 b43_shm_write32(dev, B43_SHM_SHARED, 0, backup);
2888 if ((dev->dev->id.revision >= 3) && (dev->dev->id.revision <= 10)) {
2889 /* The 32bit register shadows the two 16bit registers
2890 * with update sideeffects. Validate this. */
2891 b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA);
2892 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB);
2893 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB)
2895 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC)
2898 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0);
2900 v = b43_read32(dev, B43_MMIO_MACCTL);
2901 v |= B43_MACCTL_GMODE;
2902 if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED))
2907 b43err(dev->wl, "Failed to validate the chipaccess\n");
2911 static void b43_security_init(struct b43_wldev *dev)
2913 dev->max_nr_keys = (dev->dev->id.revision >= 5) ? 58 : 20;
2914 B43_WARN_ON(dev->max_nr_keys > ARRAY_SIZE(dev->key));
2915 dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP);
2916 /* KTP is a word address, but we address SHM bytewise.
2917 * So multiply by two.
2920 if (dev->dev->id.revision >= 5) {
2921 /* Number of RCMTA address slots */
2922 b43_write16(dev, B43_MMIO_RCMTA_COUNT, dev->max_nr_keys - 8);
2924 b43_clear_keys(dev);
2927 static int b43_rng_read(struct hwrng *rng, u32 * data)
2929 struct b43_wl *wl = (struct b43_wl *)rng->priv;
2930 unsigned long flags;
2932 /* Don't take wl->mutex here, as it could deadlock with
2933 * hwrng internal locking. It's not needed to take
2934 * wl->mutex here, anyway. */
2936 spin_lock_irqsave(&wl->irq_lock, flags);
2937 *data = b43_read16(wl->current_dev, B43_MMIO_RNG);
2938 spin_unlock_irqrestore(&wl->irq_lock, flags);
2940 return (sizeof(u16));
2943 static void b43_rng_exit(struct b43_wl *wl)
2945 if (wl->rng_initialized)
2946 hwrng_unregister(&wl->rng);
2949 static int b43_rng_init(struct b43_wl *wl)
2953 snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name),
2954 "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy));
2955 wl->rng.name = wl->rng_name;
2956 wl->rng.data_read = b43_rng_read;
2957 wl->rng.priv = (unsigned long)wl;
2958 wl->rng_initialized = 1;
2959 err = hwrng_register(&wl->rng);
2961 wl->rng_initialized = 0;
2962 b43err(wl, "Failed to register the random "
2963 "number generator (%d)\n", err);
2969 static int b43_op_tx(struct ieee80211_hw *hw,
2970 struct sk_buff *skb)
2972 struct b43_wl *wl = hw_to_b43_wl(hw);
2973 struct b43_wldev *dev = wl->current_dev;
2974 unsigned long flags;
2977 if (unlikely(skb->len < 2 + 2 + 6)) {
2978 /* Too short, this can't be a valid frame. */
2979 dev_kfree_skb_any(skb);
2980 return NETDEV_TX_OK;
2982 B43_WARN_ON(skb_shinfo(skb)->nr_frags);
2984 return NETDEV_TX_BUSY;
2986 /* Transmissions on seperate queues can run concurrently. */
2987 read_lock_irqsave(&wl->tx_lock, flags);
2990 if (likely(b43_status(dev) >= B43_STAT_STARTED)) {
2991 if (b43_using_pio_transfers(dev))
2992 err = b43_pio_tx(dev, skb);
2994 err = b43_dma_tx(dev, skb);
2997 read_unlock_irqrestore(&wl->tx_lock, flags);
3000 return NETDEV_TX_BUSY;
3001 return NETDEV_TX_OK;
3004 /* Locking: wl->irq_lock */
3005 static void b43_qos_params_upload(struct b43_wldev *dev,
3006 const struct ieee80211_tx_queue_params *p,
3009 u16 params[B43_NR_QOSPARAMS];
3010 int cw_min, cw_max, aifs, bslots, tmp;
3013 const u16 aCWmin = 0x0001;
3014 const u16 aCWmax = 0x03FF;
3016 /* Calculate the default values for the parameters, if needed. */
3017 switch (shm_offset) {
3019 aifs = (p->aifs == -1) ? 2 : p->aifs;
3020 cw_min = (p->cw_min == 0) ? ((aCWmin + 1) / 4 - 1) : p->cw_min;
3021 cw_max = (p->cw_max == 0) ? ((aCWmin + 1) / 2 - 1) : p->cw_max;
3024 aifs = (p->aifs == -1) ? 2 : p->aifs;
3025 cw_min = (p->cw_min == 0) ? ((aCWmin + 1) / 2 - 1) : p->cw_min;
3026 cw_max = (p->cw_max == 0) ? aCWmin : p->cw_max;
3028 case B43_QOS_BESTEFFORT:
3029 aifs = (p->aifs == -1) ? 3 : p->aifs;
3030 cw_min = (p->cw_min == 0) ? aCWmin : p->cw_min;
3031 cw_max = (p->cw_max == 0) ? aCWmax : p->cw_max;
3033 case B43_QOS_BACKGROUND:
3034 aifs = (p->aifs == -1) ? 7 : p->aifs;
3035 cw_min = (p->cw_min == 0) ? aCWmin : p->cw_min;
3036 cw_max = (p->cw_max == 0) ? aCWmax : p->cw_max;
3046 bslots = b43_read16(dev, B43_MMIO_RNG) % cw_min;
3048 memset(¶ms, 0, sizeof(params));
3050 params[B43_QOSPARAM_TXOP] = p->txop * 32;
3051 params[B43_QOSPARAM_CWMIN] = cw_min;
3052 params[B43_QOSPARAM_CWMAX] = cw_max;
3053 params[B43_QOSPARAM_CWCUR] = cw_min;
3054 params[B43_QOSPARAM_AIFS] = aifs;
3055 params[B43_QOSPARAM_BSLOTS] = bslots;
3056 params[B43_QOSPARAM_REGGAP] = bslots + aifs;
3058 for (i = 0; i < ARRAY_SIZE(params); i++) {
3059 if (i == B43_QOSPARAM_STATUS) {
3060 tmp = b43_shm_read16(dev, B43_SHM_SHARED,
3061 shm_offset + (i * 2));
3062 /* Mark the parameters as updated. */
3064 b43_shm_write16(dev, B43_SHM_SHARED,
3065 shm_offset + (i * 2),
3068 b43_shm_write16(dev, B43_SHM_SHARED,
3069 shm_offset + (i * 2),
3075 /* Update the QOS parameters in hardware. */
3076 static void b43_qos_update(struct b43_wldev *dev)
3078 struct b43_wl *wl = dev->wl;
3079 struct b43_qos_params *params;
3080 unsigned long flags;
3083 /* Mapping of mac80211 queues to b43 SHM offsets. */
3084 static const u16 qos_shm_offsets[] = {
3085 [0] = B43_QOS_VOICE,
3086 [1] = B43_QOS_VIDEO,
3087 [2] = B43_QOS_BESTEFFORT,
3088 [3] = B43_QOS_BACKGROUND,
3090 BUILD_BUG_ON(ARRAY_SIZE(qos_shm_offsets) != ARRAY_SIZE(wl->qos_params));
3092 b43_mac_suspend(dev);
3093 spin_lock_irqsave(&wl->irq_lock, flags);
3095 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
3096 params = &(wl->qos_params[i]);
3097 if (params->need_hw_update) {
3098 b43_qos_params_upload(dev, &(params->p),
3099 qos_shm_offsets[i]);
3100 params->need_hw_update = 0;
3104 spin_unlock_irqrestore(&wl->irq_lock, flags);
3105 b43_mac_enable(dev);
3108 static void b43_qos_clear(struct b43_wl *wl)
3110 struct b43_qos_params *params;
3113 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
3114 params = &(wl->qos_params[i]);
3116 memset(&(params->p), 0, sizeof(params->p));
3117 params->p.aifs = -1;
3118 params->need_hw_update = 1;
3122 /* Initialize the core's QOS capabilities */
3123 static void b43_qos_init(struct b43_wldev *dev)
3125 struct b43_wl *wl = dev->wl;
3128 /* Upload the current QOS parameters. */
3129 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++)
3130 wl->qos_params[i].need_hw_update = 1;
3131 b43_qos_update(dev);
3133 /* Enable QOS support. */
3134 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF);
3135 b43_write16(dev, B43_MMIO_IFSCTL,
3136 b43_read16(dev, B43_MMIO_IFSCTL)
3137 | B43_MMIO_IFSCTL_USE_EDCF);
3140 static void b43_qos_update_work(struct work_struct *work)
3142 struct b43_wl *wl = container_of(work, struct b43_wl, qos_update_work);
3143 struct b43_wldev *dev;
3145 mutex_lock(&wl->mutex);
3146 dev = wl->current_dev;
3147 if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED)))
3148 b43_qos_update(dev);
3149 mutex_unlock(&wl->mutex);
3152 static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue,
3153 const struct ieee80211_tx_queue_params *params)
3155 struct b43_wl *wl = hw_to_b43_wl(hw);
3156 unsigned long flags;
3157 unsigned int queue = (unsigned int)_queue;
3158 struct b43_qos_params *p;
3160 if (queue >= ARRAY_SIZE(wl->qos_params)) {
3161 /* Queue not available or don't support setting
3162 * params on this queue. Return success to not
3163 * confuse mac80211. */
3167 spin_lock_irqsave(&wl->irq_lock, flags);
3168 p = &(wl->qos_params[queue]);
3169 memcpy(&(p->p), params, sizeof(p->p));
3170 p->need_hw_update = 1;
3171 spin_unlock_irqrestore(&wl->irq_lock, flags);
3173 queue_work(hw->workqueue, &wl->qos_update_work);
3178 static int b43_op_get_tx_stats(struct ieee80211_hw *hw,
3179 struct ieee80211_tx_queue_stats *stats)
3181 struct b43_wl *wl = hw_to_b43_wl(hw);
3182 struct b43_wldev *dev = wl->current_dev;
3183 unsigned long flags;
3188 spin_lock_irqsave(&wl->irq_lock, flags);
3189 if (likely(b43_status(dev) >= B43_STAT_STARTED)) {
3190 if (b43_using_pio_transfers(dev))
3191 b43_pio_get_tx_stats(dev, stats);
3193 b43_dma_get_tx_stats(dev, stats);
3196 spin_unlock_irqrestore(&wl->irq_lock, flags);
3201 static int b43_op_get_stats(struct ieee80211_hw *hw,
3202 struct ieee80211_low_level_stats *stats)
3204 struct b43_wl *wl = hw_to_b43_wl(hw);
3205 unsigned long flags;
3207 spin_lock_irqsave(&wl->irq_lock, flags);
3208 memcpy(stats, &wl->ieee_stats, sizeof(*stats));
3209 spin_unlock_irqrestore(&wl->irq_lock, flags);
3214 static void b43_put_phy_into_reset(struct b43_wldev *dev)
3216 struct ssb_device *sdev = dev->dev;
3219 tmslow = ssb_read32(sdev, SSB_TMSLOW);
3220 tmslow &= ~B43_TMSLOW_GMODE;
3221 tmslow |= B43_TMSLOW_PHYRESET;
3222 tmslow |= SSB_TMSLOW_FGC;
3223 ssb_write32(sdev, SSB_TMSLOW, tmslow);
3226 tmslow = ssb_read32(sdev, SSB_TMSLOW);
3227 tmslow &= ~SSB_TMSLOW_FGC;
3228 tmslow |= B43_TMSLOW_PHYRESET;
3229 ssb_write32(sdev, SSB_TMSLOW, tmslow);
3233 static const char * band_to_string(enum ieee80211_band band)
3236 case IEEE80211_BAND_5GHZ:
3238 case IEEE80211_BAND_2GHZ:
3247 /* Expects wl->mutex locked */
3248 static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan)
3250 struct b43_wldev *up_dev = NULL;
3251 struct b43_wldev *down_dev;
3252 struct b43_wldev *d;
3257 /* Find a device and PHY which supports the band. */
3258 list_for_each_entry(d, &wl->devlist, list) {
3259 switch (chan->band) {
3260 case IEEE80211_BAND_5GHZ:
3261 if (d->phy.supports_5ghz) {
3266 case IEEE80211_BAND_2GHZ:
3267 if (d->phy.supports_2ghz) {
3280 b43err(wl, "Could not find a device for %s-GHz band operation\n",
3281 band_to_string(chan->band));
3284 if ((up_dev == wl->current_dev) &&
3285 (!!wl->current_dev->phy.gmode == !!gmode)) {
3286 /* This device is already running. */
3289 b43dbg(wl, "Switching to %s-GHz band\n",
3290 band_to_string(chan->band));
3291 down_dev = wl->current_dev;
3293 prev_status = b43_status(down_dev);
3294 /* Shutdown the currently running core. */
3295 if (prev_status >= B43_STAT_STARTED)
3296 b43_wireless_core_stop(down_dev);
3297 if (prev_status >= B43_STAT_INITIALIZED)
3298 b43_wireless_core_exit(down_dev);
3300 if (down_dev != up_dev) {
3301 /* We switch to a different core, so we put PHY into
3302 * RESET on the old core. */
3303 b43_put_phy_into_reset(down_dev);
3306 /* Now start the new core. */
3307 up_dev->phy.gmode = gmode;
3308 if (prev_status >= B43_STAT_INITIALIZED) {
3309 err = b43_wireless_core_init(up_dev);
3311 b43err(wl, "Fatal: Could not initialize device for "
3312 "selected %s-GHz band\n",
3313 band_to_string(chan->band));
3317 if (prev_status >= B43_STAT_STARTED) {
3318 err = b43_wireless_core_start(up_dev);
3320 b43err(wl, "Fatal: Coult not start device for "
3321 "selected %s-GHz band\n",
3322 band_to_string(chan->band));
3323 b43_wireless_core_exit(up_dev);
3327 B43_WARN_ON(b43_status(up_dev) != prev_status);
3329 wl->current_dev = up_dev;
3333 /* Whoops, failed to init the new core. No core is operating now. */
3334 wl->current_dev = NULL;
3338 static int b43_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
3340 struct b43_wl *wl = hw_to_b43_wl(hw);
3341 struct b43_wldev *dev;
3342 struct b43_phy *phy;
3343 unsigned long flags;
3348 mutex_lock(&wl->mutex);
3350 /* Switch the band (if necessary). This might change the active core. */
3351 err = b43_switch_band(wl, conf->channel);
3353 goto out_unlock_mutex;
3354 dev = wl->current_dev;
3357 /* Disable IRQs while reconfiguring the device.
3358 * This makes it possible to drop the spinlock throughout
3359 * the reconfiguration process. */
3360 spin_lock_irqsave(&wl->irq_lock, flags);
3361 if (b43_status(dev) < B43_STAT_STARTED) {
3362 spin_unlock_irqrestore(&wl->irq_lock, flags);
3363 goto out_unlock_mutex;
3365 savedirqs = b43_interrupt_disable(dev, B43_IRQ_ALL);
3366 spin_unlock_irqrestore(&wl->irq_lock, flags);
3367 b43_synchronize_irq(dev);
3369 /* Switch to the requested channel.
3370 * The firmware takes care of races with the TX handler. */
3371 if (conf->channel->hw_value != phy->channel)
3372 b43_radio_selectchannel(dev, conf->channel->hw_value, 0);
3374 /* Enable/Disable ShortSlot timing. */
3375 if ((!!(conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME)) !=
3377 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
3378 if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME)
3379 b43_short_slot_timing_enable(dev);
3381 b43_short_slot_timing_disable(dev);
3384 dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_RADIOTAP);
3386 /* Adjust the desired TX power level. */
3387 if (conf->power_level != 0) {
3388 if (conf->power_level != phy->power_level) {
3389 phy->power_level = conf->power_level;
3390 b43_phy_xmitpower(dev);
3394 /* Antennas for RX and management frame TX. */
3395 antenna = b43_antenna_from_ieee80211(dev, conf->antenna_sel_tx);
3396 b43_mgmtframe_txantenna(dev, antenna);
3397 antenna = b43_antenna_from_ieee80211(dev, conf->antenna_sel_rx);
3398 b43_set_rx_antenna(dev, antenna);
3400 /* Update templates for AP/mesh mode. */
3401 if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP) ||
3402 b43_is_mode(wl, IEEE80211_IF_TYPE_MESH_POINT))
3403 b43_set_beacon_int(dev, conf->beacon_int);
3405 if (!!conf->radio_enabled != phy->radio_on) {
3406 if (conf->radio_enabled) {
3407 b43_radio_turn_on(dev);
3408 b43info(dev->wl, "Radio turned on by software\n");
3409 if (!dev->radio_hw_enable) {
3410 b43info(dev->wl, "The hardware RF-kill button "
3411 "still turns the radio physically off. "
3412 "Press the button to turn it on.\n");
3415 b43_radio_turn_off(dev, 0);
3416 b43info(dev->wl, "Radio turned off by software\n");
3420 spin_lock_irqsave(&wl->irq_lock, flags);
3421 b43_interrupt_enable(dev, savedirqs);
3423 spin_unlock_irqrestore(&wl->irq_lock, flags);
3425 mutex_unlock(&wl->mutex);
3430 static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
3431 const u8 *local_addr, const u8 *addr,
3432 struct ieee80211_key_conf *key)
3434 struct b43_wl *wl = hw_to_b43_wl(hw);
3435 struct b43_wldev *dev;
3436 unsigned long flags;
3440 DECLARE_MAC_BUF(mac);
3442 if (modparam_nohwcrypt)
3443 return -ENOSPC; /* User disabled HW-crypto */
3445 mutex_lock(&wl->mutex);
3446 spin_lock_irqsave(&wl->irq_lock, flags);
3448 dev = wl->current_dev;
3450 if (!dev || b43_status(dev) < B43_STAT_INITIALIZED)
3453 if (dev->fw.pcm_request_failed) {
3454 /* We don't have firmware for the crypto engine.
3455 * Must use software-crypto. */
3463 if (key->keylen == 5)
3464 algorithm = B43_SEC_ALGO_WEP40;
3466 algorithm = B43_SEC_ALGO_WEP104;
3469 algorithm = B43_SEC_ALGO_TKIP;
3472 algorithm = B43_SEC_ALGO_AES;
3478 index = (u8) (key->keyidx);
3484 if (algorithm == B43_SEC_ALGO_TKIP) {
3485 /* FIXME: No TKIP hardware encryption for now. */
3490 if (is_broadcast_ether_addr(addr)) {
3491 /* addr is FF:FF:FF:FF:FF:FF for default keys */
3492 err = b43_key_write(dev, index, algorithm,
3493 key->key, key->keylen, NULL, key);
3496 * either pairwise key or address is 00:00:00:00:00:00
3497 * for transmit-only keys
3499 err = b43_key_write(dev, -1, algorithm,
3500 key->key, key->keylen, addr, key);
3505 if (algorithm == B43_SEC_ALGO_WEP40 ||
3506 algorithm == B43_SEC_ALGO_WEP104) {
3507 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS);
3510 b43_hf_read(dev) & ~B43_HF_USEDEFKEYS);
3512 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
3515 err = b43_key_clear(dev, key->hw_key_idx);
3524 spin_unlock_irqrestore(&wl->irq_lock, flags);
3525 mutex_unlock(&wl->mutex);
3527 b43dbg(wl, "%s hardware based encryption for keyidx: %d, "
3529 cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
3530 print_mac(mac, addr));
3535 static void b43_op_configure_filter(struct ieee80211_hw *hw,
3536 unsigned int changed, unsigned int *fflags,
3537 int mc_count, struct dev_addr_list *mc_list)
3539 struct b43_wl *wl = hw_to_b43_wl(hw);
3540 struct b43_wldev *dev = wl->current_dev;
3541 unsigned long flags;
3548 spin_lock_irqsave(&wl->irq_lock, flags);
3549 *fflags &= FIF_PROMISC_IN_BSS |
3555 FIF_BCN_PRBRESP_PROMISC;
3557 changed &= FIF_PROMISC_IN_BSS |
3563 FIF_BCN_PRBRESP_PROMISC;
3565 wl->filter_flags = *fflags;
3567 if (changed && b43_status(dev) >= B43_STAT_INITIALIZED)
3568 b43_adjust_opmode(dev);
3569 spin_unlock_irqrestore(&wl->irq_lock, flags);
3572 static int b43_op_config_interface(struct ieee80211_hw *hw,
3573 struct ieee80211_vif *vif,
3574 struct ieee80211_if_conf *conf)
3576 struct b43_wl *wl = hw_to_b43_wl(hw);
3577 struct b43_wldev *dev = wl->current_dev;
3578 unsigned long flags;
3582 mutex_lock(&wl->mutex);
3583 spin_lock_irqsave(&wl->irq_lock, flags);
3584 B43_WARN_ON(wl->vif != vif);
3586 memcpy(wl->bssid, conf->bssid, ETH_ALEN);
3588 memset(wl->bssid, 0, ETH_ALEN);
3589 if (b43_status(dev) >= B43_STAT_INITIALIZED) {
3590 if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP) ||
3591 b43_is_mode(wl, IEEE80211_IF_TYPE_MESH_POINT)) {
3592 B43_WARN_ON(conf->type != wl->if_type);
3593 b43_set_ssid(dev, conf->ssid, conf->ssid_len);
3595 b43_update_templates(wl, conf->beacon);
3597 b43_write_mac_bssid_templates(dev);
3599 spin_unlock_irqrestore(&wl->irq_lock, flags);
3600 mutex_unlock(&wl->mutex);
3605 /* Locking: wl->mutex */
3606 static void b43_wireless_core_stop(struct b43_wldev *dev)
3608 struct b43_wl *wl = dev->wl;
3609 unsigned long flags;
3611 if (b43_status(dev) < B43_STAT_STARTED)
3614 /* Disable and sync interrupts. We must do this before than
3615 * setting the status to INITIALIZED, as the interrupt handler
3616 * won't care about IRQs then. */
3617 spin_lock_irqsave(&wl->irq_lock, flags);
3618 dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL);
3619 b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* flush */
3620 spin_unlock_irqrestore(&wl->irq_lock, flags);
3621 b43_synchronize_irq(dev);
3623 write_lock_irqsave(&wl->tx_lock, flags);
3624 b43_set_status(dev, B43_STAT_INITIALIZED);
3625 write_unlock_irqrestore(&wl->tx_lock, flags);
3628 mutex_unlock(&wl->mutex);
3629 /* Must unlock as it would otherwise deadlock. No races here.
3630 * Cancel the possibly running self-rearming periodic work. */
3631 cancel_delayed_work_sync(&dev->periodic_work);
3632 mutex_lock(&wl->mutex);
3634 b43_mac_suspend(dev);
3635 free_irq(dev->dev->irq, dev);
3636 b43dbg(wl, "Wireless interface stopped\n");
3639 /* Locking: wl->mutex */
3640 static int b43_wireless_core_start(struct b43_wldev *dev)
3644 B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED);
3646 drain_txstatus_queue(dev);
3647 err = request_irq(dev->dev->irq, b43_interrupt_handler,
3648 IRQF_SHARED, KBUILD_MODNAME, dev);
3650 b43err(dev->wl, "Cannot request IRQ-%d\n", dev->dev->irq);
3654 /* We are ready to run. */
3655 b43_set_status(dev, B43_STAT_STARTED);
3657 /* Start data flow (TX/RX). */
3658 b43_mac_enable(dev);
3659 b43_interrupt_enable(dev, dev->irq_savedstate);
3661 /* Start maintainance work */
3662 b43_periodic_tasks_setup(dev);
3664 b43dbg(dev->wl, "Wireless interface started\n");
3669 /* Get PHY and RADIO versioning numbers */
3670 static int b43_phy_versioning(struct b43_wldev *dev)
3672 struct b43_phy *phy = &dev->phy;
3680 int unsupported = 0;
3682 /* Get PHY versioning */
3683 tmp = b43_read16(dev, B43_MMIO_PHY_VER);
3684 analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT;
3685 phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT;
3686 phy_rev = (tmp & B43_PHYVER_VERSION);
3693 if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6
3701 #ifdef CONFIG_B43_NPHY
3711 b43err(dev->wl, "FOUND UNSUPPORTED PHY "
3712 "(Analog %u, Type %u, Revision %u)\n",
3713 analog_type, phy_type, phy_rev);
3716 b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n",
3717 analog_type, phy_type, phy_rev);
3719 /* Get RADIO versioning */
3720 if (dev->dev->bus->chip_id == 0x4317) {
3721 if (dev->dev->bus->chip_rev == 0)
3723 else if (dev->dev->bus->chip_rev == 1)
3728 b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
3729 tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
3730 b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
3731 tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH) << 16;
3733 radio_manuf = (tmp & 0x00000FFF);
3734 radio_ver = (tmp & 0x0FFFF000) >> 12;
3735 radio_rev = (tmp & 0xF0000000) >> 28;
3736 if (radio_manuf != 0x17F /* Broadcom */)
3740 if (radio_ver != 0x2060)
3744 if (radio_manuf != 0x17F)
3748 if ((radio_ver & 0xFFF0) != 0x2050)
3752 if (radio_ver != 0x2050)
3756 if (radio_ver != 0x2055)
3763 b43err(dev->wl, "FOUND UNSUPPORTED RADIO "
3764 "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
3765 radio_manuf, radio_ver, radio_rev);
3768 b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n",
3769 radio_manuf, radio_ver, radio_rev);
3771 phy->radio_manuf = radio_manuf;
3772 phy->radio_ver = radio_ver;
3773 phy->radio_rev = radio_rev;
3775 phy->analog = analog_type;
3776 phy->type = phy_type;
3782 static void setup_struct_phy_for_init(struct b43_wldev *dev,
3783 struct b43_phy *phy)
3785 struct b43_txpower_lo_control *lo;
3788 memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
3789 memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
3791 phy->aci_enable = 0;
3792 phy->aci_wlan_automatic = 0;
3793 phy->aci_hw_rssi = 0;
3795 phy->radio_off_context.valid = 0;
3797 lo = phy->lo_control;
3799 memset(lo, 0, sizeof(*(phy->lo_control)));
3801 INIT_LIST_HEAD(&lo->calib_list);
3803 phy->max_lb_gain = 0;
3804 phy->trsw_rx_gain = 0;
3805 phy->txpwr_offset = 0;
3808 phy->nrssislope = 0;
3809 for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++)
3810 phy->nrssi[i] = -1000;
3811 for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++)
3812 phy->nrssi_lt[i] = i;
3814 phy->lofcal = 0xFFFF;
3815 phy->initval = 0xFFFF;
3817 phy->interfmode = B43_INTERFMODE_NONE;
3818 phy->channel = 0xFF;
3820 phy->hardware_power_control = !!modparam_hwpctl;
3822 /* PHY TX errors counter. */
3823 atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
3825 /* OFDM-table address caching. */
3826 phy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_UNKNOWN;
3829 static void setup_struct_wldev_for_init(struct b43_wldev *dev)
3833 /* Assume the radio is enabled. If it's not enabled, the state will
3834 * immediately get fixed on the first periodic work run. */
3835 dev->radio_hw_enable = 1;
3838 memset(&dev->stats, 0, sizeof(dev->stats));
3840 setup_struct_phy_for_init(dev, &dev->phy);
3842 /* IRQ related flags */
3843 dev->irq_reason = 0;
3844 memset(dev->dma_reason, 0, sizeof(dev->dma_reason));
3845 dev->irq_savedstate = B43_IRQ_MASKTEMPLATE;
3847 dev->mac_suspended = 1;
3849 /* Noise calculation context */
3850 memset(&dev->noisecalc, 0, sizeof(dev->noisecalc));
3853 static void b43_bluetooth_coext_enable(struct b43_wldev *dev)
3855 struct ssb_sprom *sprom = &dev->dev->bus->sprom;
3858 if (!modparam_btcoex)
3860 if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST))
3862 if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode)
3865 hf = b43_hf_read(dev);
3866 if (sprom->boardflags_lo & B43_BFL_BTCMOD)
3867 hf |= B43_HF_BTCOEXALT;
3869 hf |= B43_HF_BTCOEX;
3870 b43_hf_write(dev, hf);
3873 static void b43_bluetooth_coext_disable(struct b43_wldev *dev)
3875 if (!modparam_btcoex)
3880 static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev)
3882 #ifdef CONFIG_SSB_DRIVER_PCICORE
3883 struct ssb_bus *bus = dev->dev->bus;
3886 if (bus->pcicore.dev &&
3887 bus->pcicore.dev->id.coreid == SSB_DEV_PCI &&
3888 bus->pcicore.dev->id.revision <= 5) {
3889 /* IMCFGLO timeouts workaround. */
3890 tmp = ssb_read32(dev->dev, SSB_IMCFGLO);
3891 tmp &= ~SSB_IMCFGLO_REQTO;
3892 tmp &= ~SSB_IMCFGLO_SERTO;
3893 switch (bus->bustype) {
3894 case SSB_BUSTYPE_PCI:
3895 case SSB_BUSTYPE_PCMCIA:
3898 case SSB_BUSTYPE_SSB:
3902 ssb_write32(dev->dev, SSB_IMCFGLO, tmp);
3904 #endif /* CONFIG_SSB_DRIVER_PCICORE */
3907 /* Write the short and long frame retry limit values. */
3908 static void b43_set_retry_limits(struct b43_wldev *dev,
3909 unsigned int short_retry,
3910 unsigned int long_retry)
3912 /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
3913 * the chip-internal counter. */
3914 short_retry = min(short_retry, (unsigned int)0xF);
3915 long_retry = min(long_retry, (unsigned int)0xF);
3917 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT,
3919 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT,
3923 static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle)
3927 /* The time value is in microseconds. */
3928 if (dev->phy.type == B43_PHYTYPE_A)
3932 if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS) || idle)
3934 if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8))
3935 pu_delay = max(pu_delay, (u16)2400);
3937 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay);
3940 /* Set the TSF CFP pre-TargetBeaconTransmissionTime. */
3941 static void b43_set_pretbtt(struct b43_wldev *dev)
3945 /* The time value is in microseconds. */
3946 if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS)) {
3949 if (dev->phy.type == B43_PHYTYPE_A)
3954 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt);
3955 b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt);
3958 /* Shutdown a wireless core */
3959 /* Locking: wl->mutex */
3960 static void b43_wireless_core_exit(struct b43_wldev *dev)
3962 struct b43_phy *phy = &dev->phy;
3965 B43_WARN_ON(b43_status(dev) > B43_STAT_INITIALIZED);
3966 if (b43_status(dev) != B43_STAT_INITIALIZED)
3968 b43_set_status(dev, B43_STAT_UNINIT);
3970 /* Stop the microcode PSM. */
3971 macctl = b43_read32(dev, B43_MMIO_MACCTL);
3972 macctl &= ~B43_MACCTL_PSM_RUN;
3973 macctl |= B43_MACCTL_PSM_JMP0;
3974 b43_write32(dev, B43_MMIO_MACCTL, macctl);
3976 if (!dev->suspend_in_progress) {
3978 b43_rng_exit(dev->wl);
3983 b43_radio_turn_off(dev, 1);
3984 b43_switch_analog(dev, 0);
3985 if (phy->dyn_tssi_tbl)
3986 kfree(phy->tssi2dbm);
3987 kfree(phy->lo_control);
3988 phy->lo_control = NULL;
3989 if (dev->wl->current_beacon) {
3990 dev_kfree_skb_any(dev->wl->current_beacon);
3991 dev->wl->current_beacon = NULL;
3994 ssb_device_disable(dev->dev, 0);
3995 ssb_bus_may_powerdown(dev->dev->bus);
3998 /* Initialize a wireless core */
3999 static int b43_wireless_core_init(struct b43_wldev *dev)
4001 struct b43_wl *wl = dev->wl;
4002 struct ssb_bus *bus = dev->dev->bus;
4003 struct ssb_sprom *sprom = &bus->sprom;
4004 struct b43_phy *phy = &dev->phy;
4009 B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
4011 err = ssb_bus_powerup(bus, 0);
4014 if (!ssb_device_is_enabled(dev->dev)) {
4015 tmp = phy->gmode ? B43_TMSLOW_GMODE : 0;
4016 b43_wireless_core_reset(dev, tmp);
4019 if ((phy->type == B43_PHYTYPE_B) || (phy->type == B43_PHYTYPE_G)) {
4021 kzalloc(sizeof(*(phy->lo_control)), GFP_KERNEL);
4022 if (!phy->lo_control) {
4027 setup_struct_wldev_for_init(dev);
4029 err = b43_phy_init_tssi2dbm_table(dev);
4031 goto err_kfree_lo_control;
4033 /* Enable IRQ routing to this device. */
4034 ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev);
4036 b43_imcfglo_timeouts_workaround(dev);
4037 b43_bluetooth_coext_disable(dev);
4038 b43_phy_early_init(dev);
4039 err = b43_chip_init(dev);
4041 goto err_kfree_tssitbl;
4042 b43_shm_write16(dev, B43_SHM_SHARED,
4043 B43_SHM_SH_WLCOREREV, dev->dev->id.revision);
4044 hf = b43_hf_read(dev);
4045 if (phy->type == B43_PHYTYPE_G) {
4049 if (sprom->boardflags_lo & B43_BFL_PACTRL)
4050 hf |= B43_HF_OFDMPABOOST;
4051 } else if (phy->type == B43_PHYTYPE_B) {
4053 if (phy->rev >= 2 && phy->radio_ver == 0x2050)
4056 b43_hf_write(dev, hf);
4058 b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT,
4059 B43_DEFAULT_LONG_RETRY_LIMIT);
4060 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3);
4061 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2);
4063 /* Disable sending probe responses from firmware.
4064 * Setting the MaxTime to one usec will always trigger
4065 * a timeout, so we never send any probe resp.
4066 * A timeout of zero is infinite. */
4067 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1);
4069 b43_rate_memory_init(dev);
4070 b43_set_phytxctl_defaults(dev);
4072 /* Minimum Contention Window */
4073 if (phy->type == B43_PHYTYPE_B) {
4074 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F);
4076 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF);
4078 /* Maximum Contention Window */
4079 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF);
4081 if ((dev->dev->bus->bustype == SSB_BUSTYPE_PCMCIA) || B43_FORCE_PIO) {
4082 dev->__using_pio_transfers = 1;
4083 err = b43_pio_init(dev);
4085 dev->__using_pio_transfers = 0;
4086 err = b43_dma_init(dev);
4091 b43_set_synth_pu_delay(dev, 1);
4092 b43_bluetooth_coext_enable(dev);
4094 ssb_bus_powerup(bus, 1); /* Enable dynamic PCTL */
4095 b43_upload_card_macaddress(dev);
4096 b43_security_init(dev);
4097 if (!dev->suspend_in_progress)
4100 b43_set_status(dev, B43_STAT_INITIALIZED);
4102 if (!dev->suspend_in_progress)
4110 if (phy->dyn_tssi_tbl)
4111 kfree(phy->tssi2dbm);
4112 err_kfree_lo_control:
4113 kfree(phy->lo_control);
4114 phy->lo_control = NULL;
4116 ssb_bus_may_powerdown(bus);
4117 B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
4121 static int b43_op_add_interface(struct ieee80211_hw *hw,
4122 struct ieee80211_if_init_conf *conf)
4124 struct b43_wl *wl = hw_to_b43_wl(hw);
4125 struct b43_wldev *dev;
4126 unsigned long flags;
4127 int err = -EOPNOTSUPP;
4129 /* TODO: allow WDS/AP devices to coexist */
4131 if (conf->type != IEEE80211_IF_TYPE_AP &&
4132 conf->type != IEEE80211_IF_TYPE_MESH_POINT &&
4133 conf->type != IEEE80211_IF_TYPE_STA &&
4134 conf->type != IEEE80211_IF_TYPE_WDS &&
4135 conf->type != IEEE80211_IF_TYPE_IBSS)
4138 mutex_lock(&wl->mutex);
4140 goto out_mutex_unlock;
4142 b43dbg(wl, "Adding Interface type %d\n", conf->type);
4144 dev = wl->current_dev;
4146 wl->vif = conf->vif;
4147 wl->if_type = conf->type;
4148 memcpy(wl->mac_addr, conf->mac_addr, ETH_ALEN);
4150 spin_lock_irqsave(&wl->irq_lock, flags);
4151 b43_adjust_opmode(dev);
4152 b43_set_pretbtt(dev);
4153 b43_set_synth_pu_delay(dev, 0);
4154 b43_upload_card_macaddress(dev);
4155 spin_unlock_irqrestore(&wl->irq_lock, flags);
4159 mutex_unlock(&wl->mutex);
4164 static void b43_op_remove_interface(struct ieee80211_hw *hw,
4165 struct ieee80211_if_init_conf *conf)
4167 struct b43_wl *wl = hw_to_b43_wl(hw);
4168 struct b43_wldev *dev = wl->current_dev;
4169 unsigned long flags;
4171 b43dbg(wl, "Removing Interface type %d\n", conf->type);
4173 mutex_lock(&wl->mutex);
4175 B43_WARN_ON(!wl->operating);
4176 B43_WARN_ON(wl->vif != conf->vif);
4181 spin_lock_irqsave(&wl->irq_lock, flags);
4182 b43_adjust_opmode(dev);
4183 memset(wl->mac_addr, 0, ETH_ALEN);
4184 b43_upload_card_macaddress(dev);
4185 spin_unlock_irqrestore(&wl->irq_lock, flags);
4187 mutex_unlock(&wl->mutex);
4190 static int b43_op_start(struct ieee80211_hw *hw)
4192 struct b43_wl *wl = hw_to_b43_wl(hw);
4193 struct b43_wldev *dev = wl->current_dev;
4196 bool do_rfkill_exit = 0;
4198 /* Kill all old instance specific information to make sure
4199 * the card won't use it in the short timeframe between start
4200 * and mac80211 reconfiguring it. */
4201 memset(wl->bssid, 0, ETH_ALEN);
4202 memset(wl->mac_addr, 0, ETH_ALEN);
4203 wl->filter_flags = 0;
4204 wl->radiotap_enabled = 0;
4206 wl->beacon0_uploaded = 0;
4207 wl->beacon1_uploaded = 0;
4208 wl->beacon_templates_virgin = 1;
4210 /* First register RFkill.
4211 * LEDs that are registered later depend on it. */
4212 b43_rfkill_init(dev);
4214 mutex_lock(&wl->mutex);
4216 if (b43_status(dev) < B43_STAT_INITIALIZED) {
4217 err = b43_wireless_core_init(dev);
4220 goto out_mutex_unlock;
4225 if (b43_status(dev) < B43_STAT_STARTED) {
4226 err = b43_wireless_core_start(dev);
4229 b43_wireless_core_exit(dev);
4231 goto out_mutex_unlock;
4236 mutex_unlock(&wl->mutex);
4239 b43_rfkill_exit(dev);
4244 static void b43_op_stop(struct ieee80211_hw *hw)
4246 struct b43_wl *wl = hw_to_b43_wl(hw);
4247 struct b43_wldev *dev = wl->current_dev;
4249 b43_rfkill_exit(dev);
4250 cancel_work_sync(&(wl->qos_update_work));
4251 cancel_work_sync(&(wl->beacon_update_trigger));
4253 mutex_lock(&wl->mutex);
4254 if (b43_status(dev) >= B43_STAT_STARTED)
4255 b43_wireless_core_stop(dev);
4256 b43_wireless_core_exit(dev);
4257 mutex_unlock(&wl->mutex);
4260 static int b43_op_set_retry_limit(struct ieee80211_hw *hw,
4261 u32 short_retry_limit, u32 long_retry_limit)
4263 struct b43_wl *wl = hw_to_b43_wl(hw);
4264 struct b43_wldev *dev;
4267 mutex_lock(&wl->mutex);
4268 dev = wl->current_dev;
4269 if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) {
4273 b43_set_retry_limits(dev, short_retry_limit, long_retry_limit);
4275 mutex_unlock(&wl->mutex);
4280 static int b43_op_beacon_set_tim(struct ieee80211_hw *hw, int aid, int set)
4282 struct b43_wl *wl = hw_to_b43_wl(hw);
4283 struct sk_buff *beacon;
4284 unsigned long flags;
4286 /* We could modify the existing beacon and set the aid bit in
4287 * the TIM field, but that would probably require resizing and
4288 * moving of data within the beacon template.
4289 * Simply request a new beacon and let mac80211 do the hard work. */
4290 beacon = ieee80211_beacon_get(hw, wl->vif);
4291 if (unlikely(!beacon))
4293 spin_lock_irqsave(&wl->irq_lock, flags);
4294 b43_update_templates(wl, beacon);
4295 spin_unlock_irqrestore(&wl->irq_lock, flags);
4300 static int b43_op_ibss_beacon_update(struct ieee80211_hw *hw,
4301 struct sk_buff *beacon)
4303 struct b43_wl *wl = hw_to_b43_wl(hw);
4304 unsigned long flags;
4306 spin_lock_irqsave(&wl->irq_lock, flags);
4307 b43_update_templates(wl, beacon);
4308 spin_unlock_irqrestore(&wl->irq_lock, flags);
4313 static void b43_op_sta_notify(struct ieee80211_hw *hw,
4314 struct ieee80211_vif *vif,
4315 enum sta_notify_cmd notify_cmd,
4318 struct b43_wl *wl = hw_to_b43_wl(hw);
4320 B43_WARN_ON(!vif || wl->vif != vif);
4323 static const struct ieee80211_ops b43_hw_ops = {
4325 .conf_tx = b43_op_conf_tx,
4326 .add_interface = b43_op_add_interface,
4327 .remove_interface = b43_op_remove_interface,
4328 .config = b43_op_config,
4329 .config_interface = b43_op_config_interface,
4330 .configure_filter = b43_op_configure_filter,
4331 .set_key = b43_op_set_key,
4332 .get_stats = b43_op_get_stats,
4333 .get_tx_stats = b43_op_get_tx_stats,
4334 .start = b43_op_start,
4335 .stop = b43_op_stop,
4336 .set_retry_limit = b43_op_set_retry_limit,
4337 .set_tim = b43_op_beacon_set_tim,
4338 .beacon_update = b43_op_ibss_beacon_update,
4339 .sta_notify = b43_op_sta_notify,
4342 /* Hard-reset the chip. Do not call this directly.
4343 * Use b43_controller_restart()
4345 static void b43_chip_reset(struct work_struct *work)
4347 struct b43_wldev *dev =
4348 container_of(work, struct b43_wldev, restart_work);
4349 struct b43_wl *wl = dev->wl;
4353 mutex_lock(&wl->mutex);
4355 prev_status = b43_status(dev);
4356 /* Bring the device down... */
4357 if (prev_status >= B43_STAT_STARTED)
4358 b43_wireless_core_stop(dev);
4359 if (prev_status >= B43_STAT_INITIALIZED)
4360 b43_wireless_core_exit(dev);
4362 /* ...and up again. */
4363 if (prev_status >= B43_STAT_INITIALIZED) {
4364 err = b43_wireless_core_init(dev);
4368 if (prev_status >= B43_STAT_STARTED) {
4369 err = b43_wireless_core_start(dev);
4371 b43_wireless_core_exit(dev);
4377 wl->current_dev = NULL; /* Failed to init the dev. */
4378 mutex_unlock(&wl->mutex);
4380 b43err(wl, "Controller restart FAILED\n");
4382 b43info(wl, "Controller restarted\n");
4385 static int b43_setup_bands(struct b43_wldev *dev,
4386 bool have_2ghz_phy, bool have_5ghz_phy)
4388 struct ieee80211_hw *hw = dev->wl->hw;
4391 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz;
4392 if (dev->phy.type == B43_PHYTYPE_N) {
4394 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_nphy;
4397 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy;
4400 dev->phy.supports_2ghz = have_2ghz_phy;
4401 dev->phy.supports_5ghz = have_5ghz_phy;
4406 static void b43_wireless_core_detach(struct b43_wldev *dev)
4408 /* We release firmware that late to not be required to re-request
4409 * is all the time when we reinit the core. */
4410 b43_release_firmware(dev);
4413 static int b43_wireless_core_attach(struct b43_wldev *dev)
4415 struct b43_wl *wl = dev->wl;
4416 struct ssb_bus *bus = dev->dev->bus;
4417 struct pci_dev *pdev = bus->host_pci;
4419 bool have_2ghz_phy = 0, have_5ghz_phy = 0;
4422 /* Do NOT do any device initialization here.
4423 * Do it in wireless_core_init() instead.
4424 * This function is for gathering basic information about the HW, only.
4425 * Also some structs may be set up here. But most likely you want to have
4426 * that in core_init(), too.
4429 err = ssb_bus_powerup(bus, 0);
4431 b43err(wl, "Bus powerup failed\n");
4434 /* Get the PHY type. */
4435 if (dev->dev->id.revision >= 5) {
4438 tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);
4439 have_2ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY);
4440 have_5ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_5GHZ_PHY);
4444 dev->phy.gmode = have_2ghz_phy;
4445 tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
4446 b43_wireless_core_reset(dev, tmp);
4448 err = b43_phy_versioning(dev);
4451 /* Check if this device supports multiband. */
4453 (pdev->device != 0x4312 &&
4454 pdev->device != 0x4319 && pdev->device != 0x4324)) {
4455 /* No multiband support. */
4458 switch (dev->phy.type) {
4470 if (dev->phy.type == B43_PHYTYPE_A) {
4472 b43err(wl, "IEEE 802.11a devices are unsupported\n");
4476 if (1 /* disable A-PHY */) {
4477 /* FIXME: For now we disable the A-PHY on multi-PHY devices. */
4478 if (dev->phy.type != B43_PHYTYPE_N) {
4484 dev->phy.gmode = have_2ghz_phy;
4485 tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
4486 b43_wireless_core_reset(dev, tmp);
4488 err = b43_validate_chipaccess(dev);
4491 err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy);
4495 /* Now set some default "current_dev" */
4496 if (!wl->current_dev)
4497 wl->current_dev = dev;
4498 INIT_WORK(&dev->restart_work, b43_chip_reset);
4500 b43_radio_turn_off(dev, 1);
4501 b43_switch_analog(dev, 0);
4502 ssb_device_disable(dev->dev, 0);
4503 ssb_bus_may_powerdown(bus);
4509 ssb_bus_may_powerdown(bus);
4513 static void b43_one_core_detach(struct ssb_device *dev)
4515 struct b43_wldev *wldev;
4518 /* Do not cancel ieee80211-workqueue based work here.
4519 * See comment in b43_remove(). */
4521 wldev = ssb_get_drvdata(dev);
4523 b43_debugfs_remove_device(wldev);
4524 b43_wireless_core_detach(wldev);
4525 list_del(&wldev->list);
4527 ssb_set_drvdata(dev, NULL);
4531 static int b43_one_core_attach(struct ssb_device *dev, struct b43_wl *wl)
4533 struct b43_wldev *wldev;
4534 struct pci_dev *pdev;
4537 if (!list_empty(&wl->devlist)) {
4538 /* We are not the first core on this chip. */
4539 pdev = dev->bus->host_pci;
4540 /* Only special chips support more than one wireless
4541 * core, although some of the other chips have more than
4542 * one wireless core as well. Check for this and
4546 ((pdev->device != 0x4321) &&
4547 (pdev->device != 0x4313) && (pdev->device != 0x431A))) {
4548 b43dbg(wl, "Ignoring unconnected 802.11 core\n");
4553 wldev = kzalloc(sizeof(*wldev), GFP_KERNEL);
4559 b43_set_status(wldev, B43_STAT_UNINIT);
4560 wldev->bad_frames_preempt = modparam_bad_frames_preempt;
4561 tasklet_init(&wldev->isr_tasklet,
4562 (void (*)(unsigned long))b43_interrupt_tasklet,
4563 (unsigned long)wldev);
4564 INIT_LIST_HEAD(&wldev->list);
4566 err = b43_wireless_core_attach(wldev);
4568 goto err_kfree_wldev;
4570 list_add(&wldev->list, &wl->devlist);
4572 ssb_set_drvdata(dev, wldev);
4573 b43_debugfs_add_device(wldev);
4583 #define IS_PDEV(pdev, _vendor, _device, _subvendor, _subdevice) ( \
4584 (pdev->vendor == PCI_VENDOR_ID_##_vendor) && \
4585 (pdev->device == _device) && \
4586 (pdev->subsystem_vendor == PCI_VENDOR_ID_##_subvendor) && \
4587 (pdev->subsystem_device == _subdevice) )
4589 static void b43_sprom_fixup(struct ssb_bus *bus)
4591 struct pci_dev *pdev;
4593 /* boardflags workarounds */
4594 if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL &&
4595 bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74)
4596 bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST;
4597 if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE &&
4598 bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40)
4599 bus->sprom.boardflags_lo |= B43_BFL_PACTRL;
4600 if (bus->bustype == SSB_BUSTYPE_PCI) {
4601 pdev = bus->host_pci;
4602 if (IS_PDEV(pdev, BROADCOM, 0x4318, ASUSTEK, 0x100F) ||
4603 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0015) ||
4604 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0013))
4605 bus->sprom.boardflags_lo &= ~B43_BFL_BTCOEXIST;
4609 static void b43_wireless_exit(struct ssb_device *dev, struct b43_wl *wl)
4611 struct ieee80211_hw *hw = wl->hw;
4613 ssb_set_devtypedata(dev, NULL);
4614 ieee80211_free_hw(hw);
4617 static int b43_wireless_init(struct ssb_device *dev)
4619 struct ssb_sprom *sprom = &dev->bus->sprom;
4620 struct ieee80211_hw *hw;
4624 b43_sprom_fixup(dev->bus);
4626 hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops);
4628 b43err(NULL, "Could not allocate ieee80211 device\n");
4633 hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
4634 IEEE80211_HW_RX_INCLUDES_FCS |
4635 IEEE80211_HW_SIGNAL_DBM |
4636 IEEE80211_HW_NOISE_DBM;
4638 hw->queues = b43_modparam_qos ? 4 : 1;
4639 SET_IEEE80211_DEV(hw, dev->dev);
4640 if (is_valid_ether_addr(sprom->et1mac))
4641 SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
4643 SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac);
4645 /* Get and initialize struct b43_wl */
4646 wl = hw_to_b43_wl(hw);
4647 memset(wl, 0, sizeof(*wl));
4649 spin_lock_init(&wl->irq_lock);
4650 rwlock_init(&wl->tx_lock);
4651 spin_lock_init(&wl->leds_lock);
4652 spin_lock_init(&wl->shm_lock);
4653 mutex_init(&wl->mutex);
4654 INIT_LIST_HEAD(&wl->devlist);
4655 INIT_WORK(&wl->qos_update_work, b43_qos_update_work);
4656 INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work);
4658 ssb_set_devtypedata(dev, wl);
4659 b43info(wl, "Broadcom %04X WLAN found\n", dev->bus->chip_id);
4665 static int b43_probe(struct ssb_device *dev, const struct ssb_device_id *id)
4671 wl = ssb_get_devtypedata(dev);
4673 /* Probing the first core. Must setup common struct b43_wl */
4675 err = b43_wireless_init(dev);
4678 wl = ssb_get_devtypedata(dev);
4681 err = b43_one_core_attach(dev, wl);
4683 goto err_wireless_exit;
4686 err = ieee80211_register_hw(wl->hw);
4688 goto err_one_core_detach;
4694 err_one_core_detach:
4695 b43_one_core_detach(dev);
4698 b43_wireless_exit(dev, wl);
4702 static void b43_remove(struct ssb_device *dev)
4704 struct b43_wl *wl = ssb_get_devtypedata(dev);
4705 struct b43_wldev *wldev = ssb_get_drvdata(dev);
4707 /* We must cancel any work here before unregistering from ieee80211,
4708 * as the ieee80211 unreg will destroy the workqueue. */
4709 cancel_work_sync(&wldev->restart_work);
4712 if (wl->current_dev == wldev)
4713 ieee80211_unregister_hw(wl->hw);
4715 b43_one_core_detach(dev);
4717 if (list_empty(&wl->devlist)) {
4718 /* Last core on the chip unregistered.
4719 * We can destroy common struct b43_wl.
4721 b43_wireless_exit(dev, wl);
4725 /* Perform a hardware reset. This can be called from any context. */
4726 void b43_controller_restart(struct b43_wldev *dev, const char *reason)
4728 /* Must avoid requeueing, if we are in shutdown. */
4729 if (b43_status(dev) < B43_STAT_INITIALIZED)
4731 b43info(dev->wl, "Controller RESET (%s) ...\n", reason);
4732 queue_work(dev->wl->hw->workqueue, &dev->restart_work);
4737 static int b43_suspend(struct ssb_device *dev, pm_message_t state)
4739 struct b43_wldev *wldev = ssb_get_drvdata(dev);
4740 struct b43_wl *wl = wldev->wl;
4742 b43dbg(wl, "Suspending...\n");
4744 mutex_lock(&wl->mutex);
4745 wldev->suspend_in_progress = true;
4746 wldev->suspend_init_status = b43_status(wldev);
4747 if (wldev->suspend_init_status >= B43_STAT_STARTED)
4748 b43_wireless_core_stop(wldev);
4749 if (wldev->suspend_init_status >= B43_STAT_INITIALIZED)
4750 b43_wireless_core_exit(wldev);
4751 mutex_unlock(&wl->mutex);
4753 b43dbg(wl, "Device suspended.\n");
4758 static int b43_resume(struct ssb_device *dev)
4760 struct b43_wldev *wldev = ssb_get_drvdata(dev);
4761 struct b43_wl *wl = wldev->wl;
4764 b43dbg(wl, "Resuming...\n");
4766 mutex_lock(&wl->mutex);
4767 if (wldev->suspend_init_status >= B43_STAT_INITIALIZED) {
4768 err = b43_wireless_core_init(wldev);
4770 b43err(wl, "Resume failed at core init\n");
4774 if (wldev->suspend_init_status >= B43_STAT_STARTED) {
4775 err = b43_wireless_core_start(wldev);
4777 b43_leds_exit(wldev);
4778 b43_rng_exit(wldev->wl);
4779 b43_wireless_core_exit(wldev);
4780 b43err(wl, "Resume failed at core start\n");
4784 b43dbg(wl, "Device resumed.\n");
4786 wldev->suspend_in_progress = false;
4787 mutex_unlock(&wl->mutex);
4791 #else /* CONFIG_PM */
4792 # define b43_suspend NULL
4793 # define b43_resume NULL
4794 #endif /* CONFIG_PM */
4796 static struct ssb_driver b43_ssb_driver = {
4797 .name = KBUILD_MODNAME,
4798 .id_table = b43_ssb_tbl,
4800 .remove = b43_remove,
4801 .suspend = b43_suspend,
4802 .resume = b43_resume,
4805 static void b43_print_driverinfo(void)
4807 const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "",
4808 *feat_leds = "", *feat_rfkill = "";
4810 #ifdef CONFIG_B43_PCI_AUTOSELECT
4813 #ifdef CONFIG_B43_PCMCIA
4816 #ifdef CONFIG_B43_NPHY
4819 #ifdef CONFIG_B43_LEDS
4822 #ifdef CONFIG_B43_RFKILL
4825 printk(KERN_INFO "Broadcom 43xx driver loaded "
4826 "[ Features: %s%s%s%s%s, Firmware-ID: "
4827 B43_SUPPORTED_FIRMWARE_ID " ]\n",
4828 feat_pci, feat_pcmcia, feat_nphy,
4829 feat_leds, feat_rfkill);
4832 static int __init b43_init(void)
4837 err = b43_pcmcia_init();
4840 err = ssb_driver_register(&b43_ssb_driver);
4842 goto err_pcmcia_exit;
4843 b43_print_driverinfo();
4854 static void __exit b43_exit(void)
4856 ssb_driver_unregister(&b43_ssb_driver);
4861 module_init(b43_init)
4862 module_exit(b43_exit)