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) 2005-2009 Michael Buesch <mb@bu3sch.de>
8 Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
9 Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
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/firmware.h>
37 #include <linux/wireless.h>
38 #include <linux/workqueue.h>
39 #include <linux/skbuff.h>
41 #include <linux/dma-mapping.h>
42 #include <asm/unaligned.h>
47 #include "phy_common.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 static int modparam_hwtkip
;
84 module_param_named(hwtkip
, modparam_hwtkip
, int, 0444);
85 MODULE_PARM_DESC(hwtkip
, "Enable hardware tkip.");
87 static int modparam_qos
= 1;
88 module_param_named(qos
, modparam_qos
, int, 0444);
89 MODULE_PARM_DESC(qos
, "Enable QOS support (default on)");
91 static int modparam_btcoex
= 1;
92 module_param_named(btcoex
, modparam_btcoex
, int, 0444);
93 MODULE_PARM_DESC(btcoex
, "Enable Bluetooth coexistance (default on)");
95 int b43_modparam_verbose
= B43_VERBOSITY_DEFAULT
;
96 module_param_named(verbose
, b43_modparam_verbose
, int, 0644);
97 MODULE_PARM_DESC(verbose
, "Log message verbosity: 0=error, 1=warn, 2=info(default), 3=debug");
100 static const struct ssb_device_id b43_ssb_tbl
[] = {
101 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 5),
102 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 6),
103 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 7),
104 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 9),
105 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 10),
106 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 11),
107 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 13),
108 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 15),
109 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 16),
113 MODULE_DEVICE_TABLE(ssb
, b43_ssb_tbl
);
115 /* Channel and ratetables are shared for all devices.
116 * They can't be const, because ieee80211 puts some precalculated
117 * data in there. This data is the same for all devices, so we don't
118 * get concurrency issues */
119 #define RATETAB_ENT(_rateid, _flags) \
121 .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \
122 .hw_value = (_rateid), \
127 * NOTE: When changing this, sync with xmit.c's
128 * b43_plcp_get_bitrate_idx_* functions!
130 static struct ieee80211_rate __b43_ratetable
[] = {
131 RATETAB_ENT(B43_CCK_RATE_1MB
, 0),
132 RATETAB_ENT(B43_CCK_RATE_2MB
, IEEE80211_RATE_SHORT_PREAMBLE
),
133 RATETAB_ENT(B43_CCK_RATE_5MB
, IEEE80211_RATE_SHORT_PREAMBLE
),
134 RATETAB_ENT(B43_CCK_RATE_11MB
, IEEE80211_RATE_SHORT_PREAMBLE
),
135 RATETAB_ENT(B43_OFDM_RATE_6MB
, 0),
136 RATETAB_ENT(B43_OFDM_RATE_9MB
, 0),
137 RATETAB_ENT(B43_OFDM_RATE_12MB
, 0),
138 RATETAB_ENT(B43_OFDM_RATE_18MB
, 0),
139 RATETAB_ENT(B43_OFDM_RATE_24MB
, 0),
140 RATETAB_ENT(B43_OFDM_RATE_36MB
, 0),
141 RATETAB_ENT(B43_OFDM_RATE_48MB
, 0),
142 RATETAB_ENT(B43_OFDM_RATE_54MB
, 0),
145 #define b43_a_ratetable (__b43_ratetable + 4)
146 #define b43_a_ratetable_size 8
147 #define b43_b_ratetable (__b43_ratetable + 0)
148 #define b43_b_ratetable_size 4
149 #define b43_g_ratetable (__b43_ratetable + 0)
150 #define b43_g_ratetable_size 12
152 #define CHAN4G(_channel, _freq, _flags) { \
153 .band = IEEE80211_BAND_2GHZ, \
154 .center_freq = (_freq), \
155 .hw_value = (_channel), \
157 .max_antenna_gain = 0, \
160 static struct ieee80211_channel b43_2ghz_chantable
[] = {
178 #define CHAN5G(_channel, _flags) { \
179 .band = IEEE80211_BAND_5GHZ, \
180 .center_freq = 5000 + (5 * (_channel)), \
181 .hw_value = (_channel), \
183 .max_antenna_gain = 0, \
186 static struct ieee80211_channel b43_5ghz_nphy_chantable
[] = {
187 CHAN5G(32, 0), CHAN5G(34, 0),
188 CHAN5G(36, 0), CHAN5G(38, 0),
189 CHAN5G(40, 0), CHAN5G(42, 0),
190 CHAN5G(44, 0), CHAN5G(46, 0),
191 CHAN5G(48, 0), CHAN5G(50, 0),
192 CHAN5G(52, 0), CHAN5G(54, 0),
193 CHAN5G(56, 0), CHAN5G(58, 0),
194 CHAN5G(60, 0), CHAN5G(62, 0),
195 CHAN5G(64, 0), CHAN5G(66, 0),
196 CHAN5G(68, 0), CHAN5G(70, 0),
197 CHAN5G(72, 0), CHAN5G(74, 0),
198 CHAN5G(76, 0), CHAN5G(78, 0),
199 CHAN5G(80, 0), CHAN5G(82, 0),
200 CHAN5G(84, 0), CHAN5G(86, 0),
201 CHAN5G(88, 0), CHAN5G(90, 0),
202 CHAN5G(92, 0), CHAN5G(94, 0),
203 CHAN5G(96, 0), CHAN5G(98, 0),
204 CHAN5G(100, 0), CHAN5G(102, 0),
205 CHAN5G(104, 0), CHAN5G(106, 0),
206 CHAN5G(108, 0), CHAN5G(110, 0),
207 CHAN5G(112, 0), CHAN5G(114, 0),
208 CHAN5G(116, 0), CHAN5G(118, 0),
209 CHAN5G(120, 0), CHAN5G(122, 0),
210 CHAN5G(124, 0), CHAN5G(126, 0),
211 CHAN5G(128, 0), CHAN5G(130, 0),
212 CHAN5G(132, 0), CHAN5G(134, 0),
213 CHAN5G(136, 0), CHAN5G(138, 0),
214 CHAN5G(140, 0), CHAN5G(142, 0),
215 CHAN5G(144, 0), CHAN5G(145, 0),
216 CHAN5G(146, 0), CHAN5G(147, 0),
217 CHAN5G(148, 0), CHAN5G(149, 0),
218 CHAN5G(150, 0), CHAN5G(151, 0),
219 CHAN5G(152, 0), CHAN5G(153, 0),
220 CHAN5G(154, 0), CHAN5G(155, 0),
221 CHAN5G(156, 0), CHAN5G(157, 0),
222 CHAN5G(158, 0), CHAN5G(159, 0),
223 CHAN5G(160, 0), CHAN5G(161, 0),
224 CHAN5G(162, 0), CHAN5G(163, 0),
225 CHAN5G(164, 0), CHAN5G(165, 0),
226 CHAN5G(166, 0), CHAN5G(168, 0),
227 CHAN5G(170, 0), CHAN5G(172, 0),
228 CHAN5G(174, 0), CHAN5G(176, 0),
229 CHAN5G(178, 0), CHAN5G(180, 0),
230 CHAN5G(182, 0), CHAN5G(184, 0),
231 CHAN5G(186, 0), CHAN5G(188, 0),
232 CHAN5G(190, 0), CHAN5G(192, 0),
233 CHAN5G(194, 0), CHAN5G(196, 0),
234 CHAN5G(198, 0), CHAN5G(200, 0),
235 CHAN5G(202, 0), CHAN5G(204, 0),
236 CHAN5G(206, 0), CHAN5G(208, 0),
237 CHAN5G(210, 0), CHAN5G(212, 0),
238 CHAN5G(214, 0), CHAN5G(216, 0),
239 CHAN5G(218, 0), CHAN5G(220, 0),
240 CHAN5G(222, 0), CHAN5G(224, 0),
241 CHAN5G(226, 0), CHAN5G(228, 0),
244 static struct ieee80211_channel b43_5ghz_aphy_chantable
[] = {
245 CHAN5G(34, 0), CHAN5G(36, 0),
246 CHAN5G(38, 0), CHAN5G(40, 0),
247 CHAN5G(42, 0), CHAN5G(44, 0),
248 CHAN5G(46, 0), CHAN5G(48, 0),
249 CHAN5G(52, 0), CHAN5G(56, 0),
250 CHAN5G(60, 0), CHAN5G(64, 0),
251 CHAN5G(100, 0), CHAN5G(104, 0),
252 CHAN5G(108, 0), CHAN5G(112, 0),
253 CHAN5G(116, 0), CHAN5G(120, 0),
254 CHAN5G(124, 0), CHAN5G(128, 0),
255 CHAN5G(132, 0), CHAN5G(136, 0),
256 CHAN5G(140, 0), CHAN5G(149, 0),
257 CHAN5G(153, 0), CHAN5G(157, 0),
258 CHAN5G(161, 0), CHAN5G(165, 0),
259 CHAN5G(184, 0), CHAN5G(188, 0),
260 CHAN5G(192, 0), CHAN5G(196, 0),
261 CHAN5G(200, 0), CHAN5G(204, 0),
262 CHAN5G(208, 0), CHAN5G(212, 0),
267 static struct ieee80211_supported_band b43_band_5GHz_nphy
= {
268 .band
= IEEE80211_BAND_5GHZ
,
269 .channels
= b43_5ghz_nphy_chantable
,
270 .n_channels
= ARRAY_SIZE(b43_5ghz_nphy_chantable
),
271 .bitrates
= b43_a_ratetable
,
272 .n_bitrates
= b43_a_ratetable_size
,
275 static struct ieee80211_supported_band b43_band_5GHz_aphy
= {
276 .band
= IEEE80211_BAND_5GHZ
,
277 .channels
= b43_5ghz_aphy_chantable
,
278 .n_channels
= ARRAY_SIZE(b43_5ghz_aphy_chantable
),
279 .bitrates
= b43_a_ratetable
,
280 .n_bitrates
= b43_a_ratetable_size
,
283 static struct ieee80211_supported_band b43_band_2GHz
= {
284 .band
= IEEE80211_BAND_2GHZ
,
285 .channels
= b43_2ghz_chantable
,
286 .n_channels
= ARRAY_SIZE(b43_2ghz_chantable
),
287 .bitrates
= b43_g_ratetable
,
288 .n_bitrates
= b43_g_ratetable_size
,
291 static void b43_wireless_core_exit(struct b43_wldev
*dev
);
292 static int b43_wireless_core_init(struct b43_wldev
*dev
);
293 static void b43_wireless_core_stop(struct b43_wldev
*dev
);
294 static int b43_wireless_core_start(struct b43_wldev
*dev
);
296 static int b43_ratelimit(struct b43_wl
*wl
)
298 if (!wl
|| !wl
->current_dev
)
300 if (b43_status(wl
->current_dev
) < B43_STAT_STARTED
)
302 /* We are up and running.
303 * Ratelimit the messages to avoid DoS over the net. */
304 return net_ratelimit();
307 void b43info(struct b43_wl
*wl
, const char *fmt
, ...)
311 if (b43_modparam_verbose
< B43_VERBOSITY_INFO
)
313 if (!b43_ratelimit(wl
))
316 printk(KERN_INFO
"b43-%s: ",
317 (wl
&& wl
->hw
) ? wiphy_name(wl
->hw
->wiphy
) : "wlan");
322 void b43err(struct b43_wl
*wl
, const char *fmt
, ...)
326 if (b43_modparam_verbose
< B43_VERBOSITY_ERROR
)
328 if (!b43_ratelimit(wl
))
331 printk(KERN_ERR
"b43-%s ERROR: ",
332 (wl
&& wl
->hw
) ? wiphy_name(wl
->hw
->wiphy
) : "wlan");
337 void b43warn(struct b43_wl
*wl
, const char *fmt
, ...)
341 if (b43_modparam_verbose
< B43_VERBOSITY_WARN
)
343 if (!b43_ratelimit(wl
))
346 printk(KERN_WARNING
"b43-%s warning: ",
347 (wl
&& wl
->hw
) ? wiphy_name(wl
->hw
->wiphy
) : "wlan");
352 void b43dbg(struct b43_wl
*wl
, const char *fmt
, ...)
356 if (b43_modparam_verbose
< B43_VERBOSITY_DEBUG
)
359 printk(KERN_DEBUG
"b43-%s debug: ",
360 (wl
&& wl
->hw
) ? wiphy_name(wl
->hw
->wiphy
) : "wlan");
365 static void b43_ram_write(struct b43_wldev
*dev
, u16 offset
, u32 val
)
369 B43_WARN_ON(offset
% 4 != 0);
371 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
372 if (macctl
& B43_MACCTL_BE
)
375 b43_write32(dev
, B43_MMIO_RAM_CONTROL
, offset
);
377 b43_write32(dev
, B43_MMIO_RAM_DATA
, val
);
380 static inline void b43_shm_control_word(struct b43_wldev
*dev
,
381 u16 routing
, u16 offset
)
385 /* "offset" is the WORD offset. */
389 b43_write32(dev
, B43_MMIO_SHM_CONTROL
, control
);
392 u32
__b43_shm_read32(struct b43_wldev
*dev
, u16 routing
, u16 offset
)
396 if (routing
== B43_SHM_SHARED
) {
397 B43_WARN_ON(offset
& 0x0001);
398 if (offset
& 0x0003) {
399 /* Unaligned access */
400 b43_shm_control_word(dev
, routing
, offset
>> 2);
401 ret
= b43_read16(dev
, B43_MMIO_SHM_DATA_UNALIGNED
);
402 b43_shm_control_word(dev
, routing
, (offset
>> 2) + 1);
403 ret
|= ((u32
)b43_read16(dev
, B43_MMIO_SHM_DATA
)) << 16;
409 b43_shm_control_word(dev
, routing
, offset
);
410 ret
= b43_read32(dev
, B43_MMIO_SHM_DATA
);
415 u32
b43_shm_read32(struct b43_wldev
*dev
, u16 routing
, u16 offset
)
417 struct b43_wl
*wl
= dev
->wl
;
421 spin_lock_irqsave(&wl
->shm_lock
, flags
);
422 ret
= __b43_shm_read32(dev
, routing
, offset
);
423 spin_unlock_irqrestore(&wl
->shm_lock
, flags
);
428 u16
__b43_shm_read16(struct b43_wldev
*dev
, u16 routing
, u16 offset
)
432 if (routing
== B43_SHM_SHARED
) {
433 B43_WARN_ON(offset
& 0x0001);
434 if (offset
& 0x0003) {
435 /* Unaligned access */
436 b43_shm_control_word(dev
, routing
, offset
>> 2);
437 ret
= b43_read16(dev
, B43_MMIO_SHM_DATA_UNALIGNED
);
443 b43_shm_control_word(dev
, routing
, offset
);
444 ret
= b43_read16(dev
, B43_MMIO_SHM_DATA
);
449 u16
b43_shm_read16(struct b43_wldev
*dev
, u16 routing
, u16 offset
)
451 struct b43_wl
*wl
= dev
->wl
;
455 spin_lock_irqsave(&wl
->shm_lock
, flags
);
456 ret
= __b43_shm_read16(dev
, routing
, offset
);
457 spin_unlock_irqrestore(&wl
->shm_lock
, flags
);
462 void __b43_shm_write32(struct b43_wldev
*dev
, u16 routing
, u16 offset
, u32 value
)
464 if (routing
== B43_SHM_SHARED
) {
465 B43_WARN_ON(offset
& 0x0001);
466 if (offset
& 0x0003) {
467 /* Unaligned access */
468 b43_shm_control_word(dev
, routing
, offset
>> 2);
469 b43_write16(dev
, B43_MMIO_SHM_DATA_UNALIGNED
,
471 b43_shm_control_word(dev
, routing
, (offset
>> 2) + 1);
472 b43_write16(dev
, B43_MMIO_SHM_DATA
,
473 (value
>> 16) & 0xFFFF);
478 b43_shm_control_word(dev
, routing
, offset
);
479 b43_write32(dev
, B43_MMIO_SHM_DATA
, value
);
482 void b43_shm_write32(struct b43_wldev
*dev
, u16 routing
, u16 offset
, u32 value
)
484 struct b43_wl
*wl
= dev
->wl
;
487 spin_lock_irqsave(&wl
->shm_lock
, flags
);
488 __b43_shm_write32(dev
, routing
, offset
, value
);
489 spin_unlock_irqrestore(&wl
->shm_lock
, flags
);
492 void __b43_shm_write16(struct b43_wldev
*dev
, u16 routing
, u16 offset
, u16 value
)
494 if (routing
== B43_SHM_SHARED
) {
495 B43_WARN_ON(offset
& 0x0001);
496 if (offset
& 0x0003) {
497 /* Unaligned access */
498 b43_shm_control_word(dev
, routing
, offset
>> 2);
499 b43_write16(dev
, B43_MMIO_SHM_DATA_UNALIGNED
, value
);
504 b43_shm_control_word(dev
, routing
, offset
);
505 b43_write16(dev
, B43_MMIO_SHM_DATA
, value
);
508 void b43_shm_write16(struct b43_wldev
*dev
, u16 routing
, u16 offset
, u16 value
)
510 struct b43_wl
*wl
= dev
->wl
;
513 spin_lock_irqsave(&wl
->shm_lock
, flags
);
514 __b43_shm_write16(dev
, routing
, offset
, value
);
515 spin_unlock_irqrestore(&wl
->shm_lock
, flags
);
519 u64
b43_hf_read(struct b43_wldev
*dev
)
523 ret
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_HOSTFHI
);
525 ret
|= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_HOSTFMI
);
527 ret
|= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_HOSTFLO
);
532 /* Write HostFlags */
533 void b43_hf_write(struct b43_wldev
*dev
, u64 value
)
537 lo
= (value
& 0x00000000FFFFULL
);
538 mi
= (value
& 0x0000FFFF0000ULL
) >> 16;
539 hi
= (value
& 0xFFFF00000000ULL
) >> 32;
540 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_HOSTFLO
, lo
);
541 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_HOSTFMI
, mi
);
542 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_HOSTFHI
, hi
);
545 /* Read the firmware capabilities bitmask (Opensource firmware only) */
546 static u16
b43_fwcapa_read(struct b43_wldev
*dev
)
548 B43_WARN_ON(!dev
->fw
.opensource
);
549 return b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_FWCAPA
);
552 void b43_tsf_read(struct b43_wldev
*dev
, u64
*tsf
)
556 B43_WARN_ON(dev
->dev
->id
.revision
< 3);
558 /* The hardware guarantees us an atomic read, if we
559 * read the low register first. */
560 low
= b43_read32(dev
, B43_MMIO_REV3PLUS_TSF_LOW
);
561 high
= b43_read32(dev
, B43_MMIO_REV3PLUS_TSF_HIGH
);
568 static void b43_time_lock(struct b43_wldev
*dev
)
572 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
573 macctl
|= B43_MACCTL_TBTTHOLD
;
574 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
575 /* Commit the write */
576 b43_read32(dev
, B43_MMIO_MACCTL
);
579 static void b43_time_unlock(struct b43_wldev
*dev
)
583 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
584 macctl
&= ~B43_MACCTL_TBTTHOLD
;
585 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
586 /* Commit the write */
587 b43_read32(dev
, B43_MMIO_MACCTL
);
590 static void b43_tsf_write_locked(struct b43_wldev
*dev
, u64 tsf
)
594 B43_WARN_ON(dev
->dev
->id
.revision
< 3);
598 /* The hardware guarantees us an atomic write, if we
599 * write the low register first. */
600 b43_write32(dev
, B43_MMIO_REV3PLUS_TSF_LOW
, low
);
602 b43_write32(dev
, B43_MMIO_REV3PLUS_TSF_HIGH
, high
);
606 void b43_tsf_write(struct b43_wldev
*dev
, u64 tsf
)
609 b43_tsf_write_locked(dev
, tsf
);
610 b43_time_unlock(dev
);
614 void b43_macfilter_set(struct b43_wldev
*dev
, u16 offset
, const u8
*mac
)
616 static const u8 zero_addr
[ETH_ALEN
] = { 0 };
623 b43_write16(dev
, B43_MMIO_MACFILTER_CONTROL
, offset
);
627 b43_write16(dev
, B43_MMIO_MACFILTER_DATA
, data
);
630 b43_write16(dev
, B43_MMIO_MACFILTER_DATA
, data
);
633 b43_write16(dev
, B43_MMIO_MACFILTER_DATA
, data
);
636 static void b43_write_mac_bssid_templates(struct b43_wldev
*dev
)
640 u8 mac_bssid
[ETH_ALEN
* 2];
644 bssid
= dev
->wl
->bssid
;
645 mac
= dev
->wl
->mac_addr
;
647 b43_macfilter_set(dev
, B43_MACFILTER_BSSID
, bssid
);
649 memcpy(mac_bssid
, mac
, ETH_ALEN
);
650 memcpy(mac_bssid
+ ETH_ALEN
, bssid
, ETH_ALEN
);
652 /* Write our MAC address and BSSID to template ram */
653 for (i
= 0; i
< ARRAY_SIZE(mac_bssid
); i
+= sizeof(u32
)) {
654 tmp
= (u32
) (mac_bssid
[i
+ 0]);
655 tmp
|= (u32
) (mac_bssid
[i
+ 1]) << 8;
656 tmp
|= (u32
) (mac_bssid
[i
+ 2]) << 16;
657 tmp
|= (u32
) (mac_bssid
[i
+ 3]) << 24;
658 b43_ram_write(dev
, 0x20 + i
, tmp
);
662 static void b43_upload_card_macaddress(struct b43_wldev
*dev
)
664 b43_write_mac_bssid_templates(dev
);
665 b43_macfilter_set(dev
, B43_MACFILTER_SELF
, dev
->wl
->mac_addr
);
668 static void b43_set_slot_time(struct b43_wldev
*dev
, u16 slot_time
)
670 /* slot_time is in usec. */
671 if (dev
->phy
.type
!= B43_PHYTYPE_G
)
673 b43_write16(dev
, 0x684, 510 + slot_time
);
674 b43_shm_write16(dev
, B43_SHM_SHARED
, 0x0010, slot_time
);
677 static void b43_short_slot_timing_enable(struct b43_wldev
*dev
)
679 b43_set_slot_time(dev
, 9);
682 static void b43_short_slot_timing_disable(struct b43_wldev
*dev
)
684 b43_set_slot_time(dev
, 20);
687 /* Synchronize IRQ top- and bottom-half.
688 * IRQs must be masked before calling this.
689 * This must not be called with the irq_lock held.
691 static void b43_synchronize_irq(struct b43_wldev
*dev
)
693 synchronize_irq(dev
->dev
->irq
);
694 tasklet_kill(&dev
->isr_tasklet
);
697 /* DummyTransmission function, as documented on
698 * http://bcm-v4.sipsolutions.net/802.11/DummyTransmission
700 void b43_dummy_transmission(struct b43_wldev
*dev
, bool ofdm
, bool pa_on
)
702 struct b43_wl
*wl
= dev
->wl
;
703 struct b43_phy
*phy
= &dev
->phy
;
704 unsigned int i
, max_loop
;
716 buffer
[0] = 0x000201CC;
719 buffer
[0] = 0x000B846E;
722 spin_lock_irq(&wl
->irq_lock
);
723 write_lock(&wl
->tx_lock
);
725 for (i
= 0; i
< 5; i
++)
726 b43_ram_write(dev
, i
* 4, buffer
[i
]);
728 b43_write16(dev
, 0x0568, 0x0000);
729 if (dev
->dev
->id
.revision
< 11)
730 b43_write16(dev
, 0x07C0, 0x0000);
732 b43_write16(dev
, 0x07C0, 0x0100);
733 value
= (ofdm
? 0x41 : 0x40);
734 b43_write16(dev
, 0x050C, value
);
735 if ((phy
->type
== B43_PHYTYPE_N
) || (phy
->type
== B43_PHYTYPE_LP
))
736 b43_write16(dev
, 0x0514, 0x1A02);
737 b43_write16(dev
, 0x0508, 0x0000);
738 b43_write16(dev
, 0x050A, 0x0000);
739 b43_write16(dev
, 0x054C, 0x0000);
740 b43_write16(dev
, 0x056A, 0x0014);
741 b43_write16(dev
, 0x0568, 0x0826);
742 b43_write16(dev
, 0x0500, 0x0000);
743 if (!pa_on
&& (phy
->type
== B43_PHYTYPE_N
)) {
749 b43_write16(dev
, 0x0502, 0x00D0);
752 b43_write16(dev
, 0x0502, 0x0050);
755 b43_write16(dev
, 0x0502, 0x0030);
758 if (phy
->radio_ver
== 0x2050 && phy
->radio_rev
<= 0x5)
759 b43_radio_write16(dev
, 0x0051, 0x0017);
760 for (i
= 0x00; i
< max_loop
; i
++) {
761 value
= b43_read16(dev
, 0x050E);
766 for (i
= 0x00; i
< 0x0A; i
++) {
767 value
= b43_read16(dev
, 0x050E);
772 for (i
= 0x00; i
< 0x19; i
++) {
773 value
= b43_read16(dev
, 0x0690);
774 if (!(value
& 0x0100))
778 if (phy
->radio_ver
== 0x2050 && phy
->radio_rev
<= 0x5)
779 b43_radio_write16(dev
, 0x0051, 0x0037);
781 write_unlock(&wl
->tx_lock
);
782 spin_unlock_irq(&wl
->irq_lock
);
785 static void key_write(struct b43_wldev
*dev
,
786 u8 index
, u8 algorithm
, const u8
*key
)
793 /* Key index/algo block */
794 kidx
= b43_kidx_to_fw(dev
, index
);
795 value
= ((kidx
<< 4) | algorithm
);
796 b43_shm_write16(dev
, B43_SHM_SHARED
,
797 B43_SHM_SH_KEYIDXBLOCK
+ (kidx
* 2), value
);
799 /* Write the key to the Key Table Pointer offset */
800 offset
= dev
->ktp
+ (index
* B43_SEC_KEYSIZE
);
801 for (i
= 0; i
< B43_SEC_KEYSIZE
; i
+= 2) {
803 value
|= (u16
) (key
[i
+ 1]) << 8;
804 b43_shm_write16(dev
, B43_SHM_SHARED
, offset
+ i
, value
);
808 static void keymac_write(struct b43_wldev
*dev
, u8 index
, const u8
*addr
)
810 u32 addrtmp
[2] = { 0, 0, };
811 u8 pairwise_keys_start
= B43_NR_GROUP_KEYS
* 2;
813 if (b43_new_kidx_api(dev
))
814 pairwise_keys_start
= B43_NR_GROUP_KEYS
;
816 B43_WARN_ON(index
< pairwise_keys_start
);
817 /* We have four default TX keys and possibly four default RX keys.
818 * Physical mac 0 is mapped to physical key 4 or 8, depending
819 * on the firmware version.
820 * So we must adjust the index here.
822 index
-= pairwise_keys_start
;
823 B43_WARN_ON(index
>= B43_NR_PAIRWISE_KEYS
);
826 addrtmp
[0] = addr
[0];
827 addrtmp
[0] |= ((u32
) (addr
[1]) << 8);
828 addrtmp
[0] |= ((u32
) (addr
[2]) << 16);
829 addrtmp
[0] |= ((u32
) (addr
[3]) << 24);
830 addrtmp
[1] = addr
[4];
831 addrtmp
[1] |= ((u32
) (addr
[5]) << 8);
834 /* Receive match transmitter address (RCMTA) mechanism */
835 b43_shm_write32(dev
, B43_SHM_RCMTA
,
836 (index
* 2) + 0, addrtmp
[0]);
837 b43_shm_write16(dev
, B43_SHM_RCMTA
,
838 (index
* 2) + 1, addrtmp
[1]);
841 /* The ucode will use phase1 key with TEK key to decrypt rx packets.
842 * When a packet is received, the iv32 is checked.
843 * - if it doesn't the packet is returned without modification (and software
844 * decryption can be done). That's what happen when iv16 wrap.
845 * - if it does, the rc4 key is computed, and decryption is tried.
846 * Either it will success and B43_RX_MAC_DEC is returned,
847 * either it fails and B43_RX_MAC_DEC|B43_RX_MAC_DECERR is returned
848 * and the packet is not usable (it got modified by the ucode).
849 * So in order to never have B43_RX_MAC_DECERR, we should provide
850 * a iv32 and phase1key that match. Because we drop packets in case of
851 * B43_RX_MAC_DECERR, if we have a correct iv32 but a wrong phase1key, all
852 * packets will be lost without higher layer knowing (ie no resync possible
855 * NOTE : this should support 50 key like RCMTA because
856 * (B43_SHM_SH_KEYIDXBLOCK - B43_SHM_SH_TKIPTSCTTAK)/14 = 50
858 static void rx_tkip_phase1_write(struct b43_wldev
*dev
, u8 index
, u32 iv32
,
863 u8 pairwise_keys_start
= B43_NR_GROUP_KEYS
* 2;
865 if (!modparam_hwtkip
)
868 if (b43_new_kidx_api(dev
))
869 pairwise_keys_start
= B43_NR_GROUP_KEYS
;
871 B43_WARN_ON(index
< pairwise_keys_start
);
872 /* We have four default TX keys and possibly four default RX keys.
873 * Physical mac 0 is mapped to physical key 4 or 8, depending
874 * on the firmware version.
875 * So we must adjust the index here.
877 index
-= pairwise_keys_start
;
878 B43_WARN_ON(index
>= B43_NR_PAIRWISE_KEYS
);
880 if (b43_debug(dev
, B43_DBG_KEYS
)) {
881 b43dbg(dev
->wl
, "rx_tkip_phase1_write : idx 0x%x, iv32 0x%x\n",
884 /* Write the key to the RX tkip shared mem */
885 offset
= B43_SHM_SH_TKIPTSCTTAK
+ index
* (10 + 4);
886 for (i
= 0; i
< 10; i
+= 2) {
887 b43_shm_write16(dev
, B43_SHM_SHARED
, offset
+ i
,
888 phase1key
? phase1key
[i
/ 2] : 0);
890 b43_shm_write16(dev
, B43_SHM_SHARED
, offset
+ i
, iv32
);
891 b43_shm_write16(dev
, B43_SHM_SHARED
, offset
+ i
+ 2, iv32
>> 16);
894 static void b43_op_update_tkip_key(struct ieee80211_hw
*hw
,
895 struct ieee80211_key_conf
*keyconf
, const u8
*addr
,
896 u32 iv32
, u16
*phase1key
)
898 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
899 struct b43_wldev
*dev
;
900 int index
= keyconf
->hw_key_idx
;
902 if (B43_WARN_ON(!modparam_hwtkip
))
905 mutex_lock(&wl
->mutex
);
907 dev
= wl
->current_dev
;
908 if (!dev
|| b43_status(dev
) < B43_STAT_INITIALIZED
)
911 keymac_write(dev
, index
, NULL
); /* First zero out mac to avoid race */
913 rx_tkip_phase1_write(dev
, index
, iv32
, phase1key
);
914 keymac_write(dev
, index
, addr
);
917 mutex_unlock(&wl
->mutex
);
920 static void do_key_write(struct b43_wldev
*dev
,
921 u8 index
, u8 algorithm
,
922 const u8
*key
, size_t key_len
, const u8
*mac_addr
)
924 u8 buf
[B43_SEC_KEYSIZE
] = { 0, };
925 u8 pairwise_keys_start
= B43_NR_GROUP_KEYS
* 2;
927 if (b43_new_kidx_api(dev
))
928 pairwise_keys_start
= B43_NR_GROUP_KEYS
;
930 B43_WARN_ON(index
>= ARRAY_SIZE(dev
->key
));
931 B43_WARN_ON(key_len
> B43_SEC_KEYSIZE
);
933 if (index
>= pairwise_keys_start
)
934 keymac_write(dev
, index
, NULL
); /* First zero out mac. */
935 if (algorithm
== B43_SEC_ALGO_TKIP
) {
937 * We should provide an initial iv32, phase1key pair.
938 * We could start with iv32=0 and compute the corresponding
939 * phase1key, but this means calling ieee80211_get_tkip_key
940 * with a fake skb (or export other tkip function).
941 * Because we are lazy we hope iv32 won't start with
942 * 0xffffffff and let's b43_op_update_tkip_key provide a
945 rx_tkip_phase1_write(dev
, index
, 0xffffffff, (u16
*)buf
);
946 } else if (index
>= pairwise_keys_start
) /* clear it */
947 rx_tkip_phase1_write(dev
, index
, 0, NULL
);
949 memcpy(buf
, key
, key_len
);
950 key_write(dev
, index
, algorithm
, buf
);
951 if (index
>= pairwise_keys_start
)
952 keymac_write(dev
, index
, mac_addr
);
954 dev
->key
[index
].algorithm
= algorithm
;
957 static int b43_key_write(struct b43_wldev
*dev
,
958 int index
, u8 algorithm
,
959 const u8
*key
, size_t key_len
,
961 struct ieee80211_key_conf
*keyconf
)
964 int pairwise_keys_start
;
966 /* For ALG_TKIP the key is encoded as a 256-bit (32 byte) data block:
967 * - Temporal Encryption Key (128 bits)
968 * - Temporal Authenticator Tx MIC Key (64 bits)
969 * - Temporal Authenticator Rx MIC Key (64 bits)
971 * Hardware only store TEK
973 if (algorithm
== B43_SEC_ALGO_TKIP
&& key_len
== 32)
975 if (key_len
> B43_SEC_KEYSIZE
)
977 for (i
= 0; i
< ARRAY_SIZE(dev
->key
); i
++) {
978 /* Check that we don't already have this key. */
979 B43_WARN_ON(dev
->key
[i
].keyconf
== keyconf
);
982 /* Pairwise key. Get an empty slot for the key. */
983 if (b43_new_kidx_api(dev
))
984 pairwise_keys_start
= B43_NR_GROUP_KEYS
;
986 pairwise_keys_start
= B43_NR_GROUP_KEYS
* 2;
987 for (i
= pairwise_keys_start
;
988 i
< pairwise_keys_start
+ B43_NR_PAIRWISE_KEYS
;
990 B43_WARN_ON(i
>= ARRAY_SIZE(dev
->key
));
991 if (!dev
->key
[i
].keyconf
) {
998 b43warn(dev
->wl
, "Out of hardware key memory\n");
1002 B43_WARN_ON(index
> 3);
1004 do_key_write(dev
, index
, algorithm
, key
, key_len
, mac_addr
);
1005 if ((index
<= 3) && !b43_new_kidx_api(dev
)) {
1006 /* Default RX key */
1007 B43_WARN_ON(mac_addr
);
1008 do_key_write(dev
, index
+ 4, algorithm
, key
, key_len
, NULL
);
1010 keyconf
->hw_key_idx
= index
;
1011 dev
->key
[index
].keyconf
= keyconf
;
1016 static int b43_key_clear(struct b43_wldev
*dev
, int index
)
1018 if (B43_WARN_ON((index
< 0) || (index
>= ARRAY_SIZE(dev
->key
))))
1020 do_key_write(dev
, index
, B43_SEC_ALGO_NONE
,
1021 NULL
, B43_SEC_KEYSIZE
, NULL
);
1022 if ((index
<= 3) && !b43_new_kidx_api(dev
)) {
1023 do_key_write(dev
, index
+ 4, B43_SEC_ALGO_NONE
,
1024 NULL
, B43_SEC_KEYSIZE
, NULL
);
1026 dev
->key
[index
].keyconf
= NULL
;
1031 static void b43_clear_keys(struct b43_wldev
*dev
)
1035 if (b43_new_kidx_api(dev
))
1036 count
= B43_NR_GROUP_KEYS
+ B43_NR_PAIRWISE_KEYS
;
1038 count
= B43_NR_GROUP_KEYS
* 2 + B43_NR_PAIRWISE_KEYS
;
1039 for (i
= 0; i
< count
; i
++)
1040 b43_key_clear(dev
, i
);
1043 static void b43_dump_keymemory(struct b43_wldev
*dev
)
1045 unsigned int i
, index
, count
, offset
, pairwise_keys_start
;
1051 struct b43_key
*key
;
1053 if (!b43_debug(dev
, B43_DBG_KEYS
))
1056 hf
= b43_hf_read(dev
);
1057 b43dbg(dev
->wl
, "Hardware key memory dump: USEDEFKEYS=%u\n",
1058 !!(hf
& B43_HF_USEDEFKEYS
));
1059 if (b43_new_kidx_api(dev
)) {
1060 pairwise_keys_start
= B43_NR_GROUP_KEYS
;
1061 count
= B43_NR_GROUP_KEYS
+ B43_NR_PAIRWISE_KEYS
;
1063 pairwise_keys_start
= B43_NR_GROUP_KEYS
* 2;
1064 count
= B43_NR_GROUP_KEYS
* 2 + B43_NR_PAIRWISE_KEYS
;
1066 for (index
= 0; index
< count
; index
++) {
1067 key
= &(dev
->key
[index
]);
1068 printk(KERN_DEBUG
"Key slot %02u: %s",
1069 index
, (key
->keyconf
== NULL
) ? " " : "*");
1070 offset
= dev
->ktp
+ (index
* B43_SEC_KEYSIZE
);
1071 for (i
= 0; i
< B43_SEC_KEYSIZE
; i
+= 2) {
1072 u16 tmp
= b43_shm_read16(dev
, B43_SHM_SHARED
, offset
+ i
);
1073 printk("%02X%02X", (tmp
& 0xFF), ((tmp
>> 8) & 0xFF));
1076 algo
= b43_shm_read16(dev
, B43_SHM_SHARED
,
1077 B43_SHM_SH_KEYIDXBLOCK
+ (index
* 2));
1078 printk(" Algo: %04X/%02X", algo
, key
->algorithm
);
1080 if (index
>= pairwise_keys_start
) {
1081 if (key
->algorithm
== B43_SEC_ALGO_TKIP
) {
1083 offset
= B43_SHM_SH_TKIPTSCTTAK
+ (index
- 4) * (10 + 4);
1084 for (i
= 0; i
< 14; i
+= 2) {
1085 u16 tmp
= b43_shm_read16(dev
, B43_SHM_SHARED
, offset
+ i
);
1086 printk("%02X%02X", (tmp
& 0xFF), ((tmp
>> 8) & 0xFF));
1089 rcmta0
= b43_shm_read32(dev
, B43_SHM_RCMTA
,
1090 ((index
- pairwise_keys_start
) * 2) + 0);
1091 rcmta1
= b43_shm_read16(dev
, B43_SHM_RCMTA
,
1092 ((index
- pairwise_keys_start
) * 2) + 1);
1093 *((__le32
*)(&mac
[0])) = cpu_to_le32(rcmta0
);
1094 *((__le16
*)(&mac
[4])) = cpu_to_le16(rcmta1
);
1095 printk(" MAC: %pM", mac
);
1097 printk(" DEFAULT KEY");
1102 void b43_power_saving_ctl_bits(struct b43_wldev
*dev
, unsigned int ps_flags
)
1110 B43_WARN_ON((ps_flags
& B43_PS_ENABLED
) &&
1111 (ps_flags
& B43_PS_DISABLED
));
1112 B43_WARN_ON((ps_flags
& B43_PS_AWAKE
) && (ps_flags
& B43_PS_ASLEEP
));
1114 if (ps_flags
& B43_PS_ENABLED
) {
1116 } else if (ps_flags
& B43_PS_DISABLED
) {
1119 //TODO: If powersave is not off and FIXME is not set and we are not in adhoc
1120 // and thus is not an AP and we are associated, set bit 25
1122 if (ps_flags
& B43_PS_AWAKE
) {
1124 } else if (ps_flags
& B43_PS_ASLEEP
) {
1127 //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME,
1128 // or we are associated, or FIXME, or the latest PS-Poll packet sent was
1129 // successful, set bit26
1132 /* FIXME: For now we force awake-on and hwps-off */
1136 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
1138 macctl
|= B43_MACCTL_HWPS
;
1140 macctl
&= ~B43_MACCTL_HWPS
;
1142 macctl
|= B43_MACCTL_AWAKE
;
1144 macctl
&= ~B43_MACCTL_AWAKE
;
1145 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
1147 b43_read32(dev
, B43_MMIO_MACCTL
);
1148 if (awake
&& dev
->dev
->id
.revision
>= 5) {
1149 /* Wait for the microcode to wake up. */
1150 for (i
= 0; i
< 100; i
++) {
1151 ucstat
= b43_shm_read16(dev
, B43_SHM_SHARED
,
1152 B43_SHM_SH_UCODESTAT
);
1153 if (ucstat
!= B43_SHM_SH_UCODESTAT_SLEEP
)
1160 void b43_wireless_core_reset(struct b43_wldev
*dev
, u32 flags
)
1165 flags
|= B43_TMSLOW_PHYCLKEN
;
1166 flags
|= B43_TMSLOW_PHYRESET
;
1167 ssb_device_enable(dev
->dev
, flags
);
1168 msleep(2); /* Wait for the PLL to turn on. */
1170 /* Now take the PHY out of Reset again */
1171 tmslow
= ssb_read32(dev
->dev
, SSB_TMSLOW
);
1172 tmslow
|= SSB_TMSLOW_FGC
;
1173 tmslow
&= ~B43_TMSLOW_PHYRESET
;
1174 ssb_write32(dev
->dev
, SSB_TMSLOW
, tmslow
);
1175 ssb_read32(dev
->dev
, SSB_TMSLOW
); /* flush */
1177 tmslow
&= ~SSB_TMSLOW_FGC
;
1178 ssb_write32(dev
->dev
, SSB_TMSLOW
, tmslow
);
1179 ssb_read32(dev
->dev
, SSB_TMSLOW
); /* flush */
1182 /* Turn Analog ON, but only if we already know the PHY-type.
1183 * This protects against very early setup where we don't know the
1184 * PHY-type, yet. wireless_core_reset will be called once again later,
1185 * when we know the PHY-type. */
1187 dev
->phy
.ops
->switch_analog(dev
, 1);
1189 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
1190 macctl
&= ~B43_MACCTL_GMODE
;
1191 if (flags
& B43_TMSLOW_GMODE
)
1192 macctl
|= B43_MACCTL_GMODE
;
1193 macctl
|= B43_MACCTL_IHR_ENABLED
;
1194 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
1197 static void handle_irq_transmit_status(struct b43_wldev
*dev
)
1201 struct b43_txstatus stat
;
1204 v0
= b43_read32(dev
, B43_MMIO_XMITSTAT_0
);
1205 if (!(v0
& 0x00000001))
1207 v1
= b43_read32(dev
, B43_MMIO_XMITSTAT_1
);
1209 stat
.cookie
= (v0
>> 16);
1210 stat
.seq
= (v1
& 0x0000FFFF);
1211 stat
.phy_stat
= ((v1
& 0x00FF0000) >> 16);
1212 tmp
= (v0
& 0x0000FFFF);
1213 stat
.frame_count
= ((tmp
& 0xF000) >> 12);
1214 stat
.rts_count
= ((tmp
& 0x0F00) >> 8);
1215 stat
.supp_reason
= ((tmp
& 0x001C) >> 2);
1216 stat
.pm_indicated
= !!(tmp
& 0x0080);
1217 stat
.intermediate
= !!(tmp
& 0x0040);
1218 stat
.for_ampdu
= !!(tmp
& 0x0020);
1219 stat
.acked
= !!(tmp
& 0x0002);
1221 b43_handle_txstatus(dev
, &stat
);
1225 static void drain_txstatus_queue(struct b43_wldev
*dev
)
1229 if (dev
->dev
->id
.revision
< 5)
1231 /* Read all entries from the microcode TXstatus FIFO
1232 * and throw them away.
1235 dummy
= b43_read32(dev
, B43_MMIO_XMITSTAT_0
);
1236 if (!(dummy
& 0x00000001))
1238 dummy
= b43_read32(dev
, B43_MMIO_XMITSTAT_1
);
1242 static u32
b43_jssi_read(struct b43_wldev
*dev
)
1246 val
= b43_shm_read16(dev
, B43_SHM_SHARED
, 0x08A);
1248 val
|= b43_shm_read16(dev
, B43_SHM_SHARED
, 0x088);
1253 static void b43_jssi_write(struct b43_wldev
*dev
, u32 jssi
)
1255 b43_shm_write16(dev
, B43_SHM_SHARED
, 0x088, (jssi
& 0x0000FFFF));
1256 b43_shm_write16(dev
, B43_SHM_SHARED
, 0x08A, (jssi
& 0xFFFF0000) >> 16);
1259 static void b43_generate_noise_sample(struct b43_wldev
*dev
)
1261 b43_jssi_write(dev
, 0x7F7F7F7F);
1262 b43_write32(dev
, B43_MMIO_MACCMD
,
1263 b43_read32(dev
, B43_MMIO_MACCMD
) | B43_MACCMD_BGNOISE
);
1266 static void b43_calculate_link_quality(struct b43_wldev
*dev
)
1268 /* Top half of Link Quality calculation. */
1270 if (dev
->phy
.type
!= B43_PHYTYPE_G
)
1272 if (dev
->noisecalc
.calculation_running
)
1274 dev
->noisecalc
.calculation_running
= 1;
1275 dev
->noisecalc
.nr_samples
= 0;
1277 b43_generate_noise_sample(dev
);
1280 static void handle_irq_noise(struct b43_wldev
*dev
)
1282 struct b43_phy_g
*phy
= dev
->phy
.g
;
1288 /* Bottom half of Link Quality calculation. */
1290 if (dev
->phy
.type
!= B43_PHYTYPE_G
)
1293 /* Possible race condition: It might be possible that the user
1294 * changed to a different channel in the meantime since we
1295 * started the calculation. We ignore that fact, since it's
1296 * not really that much of a problem. The background noise is
1297 * an estimation only anyway. Slightly wrong results will get damped
1298 * by the averaging of the 8 sample rounds. Additionally the
1299 * value is shortlived. So it will be replaced by the next noise
1300 * calculation round soon. */
1302 B43_WARN_ON(!dev
->noisecalc
.calculation_running
);
1303 *((__le32
*)noise
) = cpu_to_le32(b43_jssi_read(dev
));
1304 if (noise
[0] == 0x7F || noise
[1] == 0x7F ||
1305 noise
[2] == 0x7F || noise
[3] == 0x7F)
1308 /* Get the noise samples. */
1309 B43_WARN_ON(dev
->noisecalc
.nr_samples
>= 8);
1310 i
= dev
->noisecalc
.nr_samples
;
1311 noise
[0] = clamp_val(noise
[0], 0, ARRAY_SIZE(phy
->nrssi_lt
) - 1);
1312 noise
[1] = clamp_val(noise
[1], 0, ARRAY_SIZE(phy
->nrssi_lt
) - 1);
1313 noise
[2] = clamp_val(noise
[2], 0, ARRAY_SIZE(phy
->nrssi_lt
) - 1);
1314 noise
[3] = clamp_val(noise
[3], 0, ARRAY_SIZE(phy
->nrssi_lt
) - 1);
1315 dev
->noisecalc
.samples
[i
][0] = phy
->nrssi_lt
[noise
[0]];
1316 dev
->noisecalc
.samples
[i
][1] = phy
->nrssi_lt
[noise
[1]];
1317 dev
->noisecalc
.samples
[i
][2] = phy
->nrssi_lt
[noise
[2]];
1318 dev
->noisecalc
.samples
[i
][3] = phy
->nrssi_lt
[noise
[3]];
1319 dev
->noisecalc
.nr_samples
++;
1320 if (dev
->noisecalc
.nr_samples
== 8) {
1321 /* Calculate the Link Quality by the noise samples. */
1323 for (i
= 0; i
< 8; i
++) {
1324 for (j
= 0; j
< 4; j
++)
1325 average
+= dev
->noisecalc
.samples
[i
][j
];
1331 tmp
= b43_shm_read16(dev
, B43_SHM_SHARED
, 0x40C);
1332 tmp
= (tmp
/ 128) & 0x1F;
1342 dev
->stats
.link_noise
= average
;
1343 dev
->noisecalc
.calculation_running
= 0;
1347 b43_generate_noise_sample(dev
);
1350 static void handle_irq_tbtt_indication(struct b43_wldev
*dev
)
1352 if (b43_is_mode(dev
->wl
, NL80211_IFTYPE_AP
)) {
1355 if (1 /*FIXME: the last PSpoll frame was sent successfully */ )
1356 b43_power_saving_ctl_bits(dev
, 0);
1358 if (b43_is_mode(dev
->wl
, NL80211_IFTYPE_ADHOC
))
1362 static void handle_irq_atim_end(struct b43_wldev
*dev
)
1364 if (dev
->dfq_valid
) {
1365 b43_write32(dev
, B43_MMIO_MACCMD
,
1366 b43_read32(dev
, B43_MMIO_MACCMD
)
1367 | B43_MACCMD_DFQ_VALID
);
1372 static void handle_irq_pmq(struct b43_wldev
*dev
)
1379 tmp
= b43_read32(dev
, B43_MMIO_PS_STATUS
);
1380 if (!(tmp
& 0x00000008))
1383 /* 16bit write is odd, but correct. */
1384 b43_write16(dev
, B43_MMIO_PS_STATUS
, 0x0002);
1387 static void b43_write_template_common(struct b43_wldev
*dev
,
1388 const u8
*data
, u16 size
,
1390 u16 shm_size_offset
, u8 rate
)
1393 struct b43_plcp_hdr4 plcp
;
1396 b43_generate_plcp_hdr(&plcp
, size
+ FCS_LEN
, rate
);
1397 b43_ram_write(dev
, ram_offset
, le32_to_cpu(plcp
.data
));
1398 ram_offset
+= sizeof(u32
);
1399 /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet.
1400 * So leave the first two bytes of the next write blank.
1402 tmp
= (u32
) (data
[0]) << 16;
1403 tmp
|= (u32
) (data
[1]) << 24;
1404 b43_ram_write(dev
, ram_offset
, tmp
);
1405 ram_offset
+= sizeof(u32
);
1406 for (i
= 2; i
< size
; i
+= sizeof(u32
)) {
1407 tmp
= (u32
) (data
[i
+ 0]);
1409 tmp
|= (u32
) (data
[i
+ 1]) << 8;
1411 tmp
|= (u32
) (data
[i
+ 2]) << 16;
1413 tmp
|= (u32
) (data
[i
+ 3]) << 24;
1414 b43_ram_write(dev
, ram_offset
+ i
- 2, tmp
);
1416 b43_shm_write16(dev
, B43_SHM_SHARED
, shm_size_offset
,
1417 size
+ sizeof(struct b43_plcp_hdr6
));
1420 /* Check if the use of the antenna that ieee80211 told us to
1421 * use is possible. This will fall back to DEFAULT.
1422 * "antenna_nr" is the antenna identifier we got from ieee80211. */
1423 u8
b43_ieee80211_antenna_sanitize(struct b43_wldev
*dev
,
1428 if (antenna_nr
== 0) {
1429 /* Zero means "use default antenna". That's always OK. */
1433 /* Get the mask of available antennas. */
1435 antenna_mask
= dev
->dev
->bus
->sprom
.ant_available_bg
;
1437 antenna_mask
= dev
->dev
->bus
->sprom
.ant_available_a
;
1439 if (!(antenna_mask
& (1 << (antenna_nr
- 1)))) {
1440 /* This antenna is not available. Fall back to default. */
1447 /* Convert a b43 antenna number value to the PHY TX control value. */
1448 static u16
b43_antenna_to_phyctl(int antenna
)
1452 return B43_TXH_PHY_ANT0
;
1454 return B43_TXH_PHY_ANT1
;
1456 return B43_TXH_PHY_ANT2
;
1458 return B43_TXH_PHY_ANT3
;
1459 case B43_ANTENNA_AUTO
:
1460 return B43_TXH_PHY_ANT01AUTO
;
1466 static void b43_write_beacon_template(struct b43_wldev
*dev
,
1468 u16 shm_size_offset
)
1470 unsigned int i
, len
, variable_len
;
1471 const struct ieee80211_mgmt
*bcn
;
1477 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(dev
->wl
->current_beacon
);
1479 bcn
= (const struct ieee80211_mgmt
*)(dev
->wl
->current_beacon
->data
);
1480 len
= min((size_t) dev
->wl
->current_beacon
->len
,
1481 0x200 - sizeof(struct b43_plcp_hdr6
));
1482 rate
= ieee80211_get_tx_rate(dev
->wl
->hw
, info
)->hw_value
;
1484 b43_write_template_common(dev
, (const u8
*)bcn
,
1485 len
, ram_offset
, shm_size_offset
, rate
);
1487 /* Write the PHY TX control parameters. */
1488 antenna
= B43_ANTENNA_DEFAULT
;
1489 antenna
= b43_antenna_to_phyctl(antenna
);
1490 ctl
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_BEACPHYCTL
);
1491 /* We can't send beacons with short preamble. Would get PHY errors. */
1492 ctl
&= ~B43_TXH_PHY_SHORTPRMBL
;
1493 ctl
&= ~B43_TXH_PHY_ANT
;
1494 ctl
&= ~B43_TXH_PHY_ENC
;
1496 if (b43_is_cck_rate(rate
))
1497 ctl
|= B43_TXH_PHY_ENC_CCK
;
1499 ctl
|= B43_TXH_PHY_ENC_OFDM
;
1500 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_BEACPHYCTL
, ctl
);
1502 /* Find the position of the TIM and the DTIM_period value
1503 * and write them to SHM. */
1504 ie
= bcn
->u
.beacon
.variable
;
1505 variable_len
= len
- offsetof(struct ieee80211_mgmt
, u
.beacon
.variable
);
1506 for (i
= 0; i
< variable_len
- 2; ) {
1507 uint8_t ie_id
, ie_len
;
1514 /* This is the TIM Information Element */
1516 /* Check whether the ie_len is in the beacon data range. */
1517 if (variable_len
< ie_len
+ 2 + i
)
1519 /* A valid TIM is at least 4 bytes long. */
1524 tim_position
= sizeof(struct b43_plcp_hdr6
);
1525 tim_position
+= offsetof(struct ieee80211_mgmt
, u
.beacon
.variable
);
1528 dtim_period
= ie
[i
+ 3];
1530 b43_shm_write16(dev
, B43_SHM_SHARED
,
1531 B43_SHM_SH_TIMBPOS
, tim_position
);
1532 b43_shm_write16(dev
, B43_SHM_SHARED
,
1533 B43_SHM_SH_DTIMPER
, dtim_period
);
1540 * If ucode wants to modify TIM do it behind the beacon, this
1541 * will happen, for example, when doing mesh networking.
1543 b43_shm_write16(dev
, B43_SHM_SHARED
,
1545 len
+ sizeof(struct b43_plcp_hdr6
));
1546 b43_shm_write16(dev
, B43_SHM_SHARED
,
1547 B43_SHM_SH_DTIMPER
, 0);
1549 b43dbg(dev
->wl
, "Updated beacon template at 0x%x\n", ram_offset
);
1552 static void b43_upload_beacon0(struct b43_wldev
*dev
)
1554 struct b43_wl
*wl
= dev
->wl
;
1556 if (wl
->beacon0_uploaded
)
1558 b43_write_beacon_template(dev
, 0x68, 0x18);
1559 wl
->beacon0_uploaded
= 1;
1562 static void b43_upload_beacon1(struct b43_wldev
*dev
)
1564 struct b43_wl
*wl
= dev
->wl
;
1566 if (wl
->beacon1_uploaded
)
1568 b43_write_beacon_template(dev
, 0x468, 0x1A);
1569 wl
->beacon1_uploaded
= 1;
1572 static void handle_irq_beacon(struct b43_wldev
*dev
)
1574 struct b43_wl
*wl
= dev
->wl
;
1575 u32 cmd
, beacon0_valid
, beacon1_valid
;
1577 if (!b43_is_mode(wl
, NL80211_IFTYPE_AP
) &&
1578 !b43_is_mode(wl
, NL80211_IFTYPE_MESH_POINT
))
1581 /* This is the bottom half of the asynchronous beacon update. */
1583 /* Ignore interrupt in the future. */
1584 dev
->irq_mask
&= ~B43_IRQ_BEACON
;
1586 cmd
= b43_read32(dev
, B43_MMIO_MACCMD
);
1587 beacon0_valid
= (cmd
& B43_MACCMD_BEACON0_VALID
);
1588 beacon1_valid
= (cmd
& B43_MACCMD_BEACON1_VALID
);
1590 /* Schedule interrupt manually, if busy. */
1591 if (beacon0_valid
&& beacon1_valid
) {
1592 b43_write32(dev
, B43_MMIO_GEN_IRQ_REASON
, B43_IRQ_BEACON
);
1593 dev
->irq_mask
|= B43_IRQ_BEACON
;
1597 if (unlikely(wl
->beacon_templates_virgin
)) {
1598 /* We never uploaded a beacon before.
1599 * Upload both templates now, but only mark one valid. */
1600 wl
->beacon_templates_virgin
= 0;
1601 b43_upload_beacon0(dev
);
1602 b43_upload_beacon1(dev
);
1603 cmd
= b43_read32(dev
, B43_MMIO_MACCMD
);
1604 cmd
|= B43_MACCMD_BEACON0_VALID
;
1605 b43_write32(dev
, B43_MMIO_MACCMD
, cmd
);
1607 if (!beacon0_valid
) {
1608 b43_upload_beacon0(dev
);
1609 cmd
= b43_read32(dev
, B43_MMIO_MACCMD
);
1610 cmd
|= B43_MACCMD_BEACON0_VALID
;
1611 b43_write32(dev
, B43_MMIO_MACCMD
, cmd
);
1612 } else if (!beacon1_valid
) {
1613 b43_upload_beacon1(dev
);
1614 cmd
= b43_read32(dev
, B43_MMIO_MACCMD
);
1615 cmd
|= B43_MACCMD_BEACON1_VALID
;
1616 b43_write32(dev
, B43_MMIO_MACCMD
, cmd
);
1621 static void b43_beacon_update_trigger_work(struct work_struct
*work
)
1623 struct b43_wl
*wl
= container_of(work
, struct b43_wl
,
1624 beacon_update_trigger
);
1625 struct b43_wldev
*dev
;
1627 mutex_lock(&wl
->mutex
);
1628 dev
= wl
->current_dev
;
1629 if (likely(dev
&& (b43_status(dev
) >= B43_STAT_INITIALIZED
))) {
1630 spin_lock_irq(&wl
->irq_lock
);
1631 /* update beacon right away or defer to irq */
1632 handle_irq_beacon(dev
);
1633 /* The handler might have updated the IRQ mask. */
1634 b43_write32(dev
, B43_MMIO_GEN_IRQ_MASK
, dev
->irq_mask
);
1636 spin_unlock_irq(&wl
->irq_lock
);
1638 mutex_unlock(&wl
->mutex
);
1641 /* Asynchronously update the packet templates in template RAM.
1642 * Locking: Requires wl->irq_lock to be locked. */
1643 static void b43_update_templates(struct b43_wl
*wl
)
1645 struct sk_buff
*beacon
;
1647 /* This is the top half of the ansynchronous beacon update.
1648 * The bottom half is the beacon IRQ.
1649 * Beacon update must be asynchronous to avoid sending an
1650 * invalid beacon. This can happen for example, if the firmware
1651 * transmits a beacon while we are updating it. */
1653 /* We could modify the existing beacon and set the aid bit in
1654 * the TIM field, but that would probably require resizing and
1655 * moving of data within the beacon template.
1656 * Simply request a new beacon and let mac80211 do the hard work. */
1657 beacon
= ieee80211_beacon_get(wl
->hw
, wl
->vif
);
1658 if (unlikely(!beacon
))
1661 if (wl
->current_beacon
)
1662 dev_kfree_skb_any(wl
->current_beacon
);
1663 wl
->current_beacon
= beacon
;
1664 wl
->beacon0_uploaded
= 0;
1665 wl
->beacon1_uploaded
= 0;
1666 ieee80211_queue_work(wl
->hw
, &wl
->beacon_update_trigger
);
1669 static void b43_set_beacon_int(struct b43_wldev
*dev
, u16 beacon_int
)
1672 if (dev
->dev
->id
.revision
>= 3) {
1673 b43_write32(dev
, B43_MMIO_TSF_CFP_REP
, (beacon_int
<< 16));
1674 b43_write32(dev
, B43_MMIO_TSF_CFP_START
, (beacon_int
<< 10));
1676 b43_write16(dev
, 0x606, (beacon_int
>> 6));
1677 b43_write16(dev
, 0x610, beacon_int
);
1679 b43_time_unlock(dev
);
1680 b43dbg(dev
->wl
, "Set beacon interval to %u\n", beacon_int
);
1683 static void b43_handle_firmware_panic(struct b43_wldev
*dev
)
1687 /* Read the register that contains the reason code for the panic. */
1688 reason
= b43_shm_read16(dev
, B43_SHM_SCRATCH
, B43_FWPANIC_REASON_REG
);
1689 b43err(dev
->wl
, "Whoopsy, firmware panic! Reason: %u\n", reason
);
1693 b43dbg(dev
->wl
, "The panic reason is unknown.\n");
1695 case B43_FWPANIC_DIE
:
1696 /* Do not restart the controller or firmware.
1697 * The device is nonfunctional from now on.
1698 * Restarting would result in this panic to trigger again,
1699 * so we avoid that recursion. */
1701 case B43_FWPANIC_RESTART
:
1702 b43_controller_restart(dev
, "Microcode panic");
1707 static void handle_irq_ucode_debug(struct b43_wldev
*dev
)
1709 unsigned int i
, cnt
;
1710 u16 reason
, marker_id
, marker_line
;
1713 /* The proprietary firmware doesn't have this IRQ. */
1714 if (!dev
->fw
.opensource
)
1717 /* Read the register that contains the reason code for this IRQ. */
1718 reason
= b43_shm_read16(dev
, B43_SHM_SCRATCH
, B43_DEBUGIRQ_REASON_REG
);
1721 case B43_DEBUGIRQ_PANIC
:
1722 b43_handle_firmware_panic(dev
);
1724 case B43_DEBUGIRQ_DUMP_SHM
:
1726 break; /* Only with driver debugging enabled. */
1727 buf
= kmalloc(4096, GFP_ATOMIC
);
1729 b43dbg(dev
->wl
, "SHM-dump: Failed to allocate memory\n");
1732 for (i
= 0; i
< 4096; i
+= 2) {
1733 u16 tmp
= b43_shm_read16(dev
, B43_SHM_SHARED
, i
);
1734 buf
[i
/ 2] = cpu_to_le16(tmp
);
1736 b43info(dev
->wl
, "Shared memory dump:\n");
1737 print_hex_dump(KERN_INFO
, "", DUMP_PREFIX_OFFSET
,
1738 16, 2, buf
, 4096, 1);
1741 case B43_DEBUGIRQ_DUMP_REGS
:
1743 break; /* Only with driver debugging enabled. */
1744 b43info(dev
->wl
, "Microcode register dump:\n");
1745 for (i
= 0, cnt
= 0; i
< 64; i
++) {
1746 u16 tmp
= b43_shm_read16(dev
, B43_SHM_SCRATCH
, i
);
1749 printk("r%02u: 0x%04X ", i
, tmp
);
1758 case B43_DEBUGIRQ_MARKER
:
1760 break; /* Only with driver debugging enabled. */
1761 marker_id
= b43_shm_read16(dev
, B43_SHM_SCRATCH
,
1763 marker_line
= b43_shm_read16(dev
, B43_SHM_SCRATCH
,
1764 B43_MARKER_LINE_REG
);
1765 b43info(dev
->wl
, "The firmware just executed the MARKER(%u) "
1766 "at line number %u\n",
1767 marker_id
, marker_line
);
1770 b43dbg(dev
->wl
, "Debug-IRQ triggered for unknown reason: %u\n",
1774 /* Acknowledge the debug-IRQ, so the firmware can continue. */
1775 b43_shm_write16(dev
, B43_SHM_SCRATCH
,
1776 B43_DEBUGIRQ_REASON_REG
, B43_DEBUGIRQ_ACK
);
1779 /* Interrupt handler bottom-half */
1780 static void b43_interrupt_tasklet(struct b43_wldev
*dev
)
1783 u32 dma_reason
[ARRAY_SIZE(dev
->dma_reason
)];
1784 u32 merged_dma_reason
= 0;
1786 unsigned long flags
;
1788 spin_lock_irqsave(&dev
->wl
->irq_lock
, flags
);
1790 B43_WARN_ON(b43_status(dev
) != B43_STAT_STARTED
);
1792 reason
= dev
->irq_reason
;
1793 for (i
= 0; i
< ARRAY_SIZE(dma_reason
); i
++) {
1794 dma_reason
[i
] = dev
->dma_reason
[i
];
1795 merged_dma_reason
|= dma_reason
[i
];
1798 if (unlikely(reason
& B43_IRQ_MAC_TXERR
))
1799 b43err(dev
->wl
, "MAC transmission error\n");
1801 if (unlikely(reason
& B43_IRQ_PHY_TXERR
)) {
1802 b43err(dev
->wl
, "PHY transmission error\n");
1804 if (unlikely(atomic_dec_and_test(&dev
->phy
.txerr_cnt
))) {
1805 atomic_set(&dev
->phy
.txerr_cnt
,
1806 B43_PHY_TX_BADNESS_LIMIT
);
1807 b43err(dev
->wl
, "Too many PHY TX errors, "
1808 "restarting the controller\n");
1809 b43_controller_restart(dev
, "PHY TX errors");
1813 if (unlikely(merged_dma_reason
& (B43_DMAIRQ_FATALMASK
|
1814 B43_DMAIRQ_NONFATALMASK
))) {
1815 if (merged_dma_reason
& B43_DMAIRQ_FATALMASK
) {
1816 b43err(dev
->wl
, "Fatal DMA error: "
1817 "0x%08X, 0x%08X, 0x%08X, "
1818 "0x%08X, 0x%08X, 0x%08X\n",
1819 dma_reason
[0], dma_reason
[1],
1820 dma_reason
[2], dma_reason
[3],
1821 dma_reason
[4], dma_reason
[5]);
1822 b43_controller_restart(dev
, "DMA error");
1824 spin_unlock_irqrestore(&dev
->wl
->irq_lock
, flags
);
1827 if (merged_dma_reason
& B43_DMAIRQ_NONFATALMASK
) {
1828 b43err(dev
->wl
, "DMA error: "
1829 "0x%08X, 0x%08X, 0x%08X, "
1830 "0x%08X, 0x%08X, 0x%08X\n",
1831 dma_reason
[0], dma_reason
[1],
1832 dma_reason
[2], dma_reason
[3],
1833 dma_reason
[4], dma_reason
[5]);
1837 if (unlikely(reason
& B43_IRQ_UCODE_DEBUG
))
1838 handle_irq_ucode_debug(dev
);
1839 if (reason
& B43_IRQ_TBTT_INDI
)
1840 handle_irq_tbtt_indication(dev
);
1841 if (reason
& B43_IRQ_ATIM_END
)
1842 handle_irq_atim_end(dev
);
1843 if (reason
& B43_IRQ_BEACON
)
1844 handle_irq_beacon(dev
);
1845 if (reason
& B43_IRQ_PMQ
)
1846 handle_irq_pmq(dev
);
1847 if (reason
& B43_IRQ_TXFIFO_FLUSH_OK
)
1849 if (reason
& B43_IRQ_NOISESAMPLE_OK
)
1850 handle_irq_noise(dev
);
1852 /* Check the DMA reason registers for received data. */
1853 if (dma_reason
[0] & B43_DMAIRQ_RX_DONE
) {
1854 if (b43_using_pio_transfers(dev
))
1855 b43_pio_rx(dev
->pio
.rx_queue
);
1857 b43_dma_rx(dev
->dma
.rx_ring
);
1859 B43_WARN_ON(dma_reason
[1] & B43_DMAIRQ_RX_DONE
);
1860 B43_WARN_ON(dma_reason
[2] & B43_DMAIRQ_RX_DONE
);
1861 B43_WARN_ON(dma_reason
[3] & B43_DMAIRQ_RX_DONE
);
1862 B43_WARN_ON(dma_reason
[4] & B43_DMAIRQ_RX_DONE
);
1863 B43_WARN_ON(dma_reason
[5] & B43_DMAIRQ_RX_DONE
);
1865 if (reason
& B43_IRQ_TX_OK
)
1866 handle_irq_transmit_status(dev
);
1868 b43_write32(dev
, B43_MMIO_GEN_IRQ_MASK
, dev
->irq_mask
);
1870 spin_unlock_irqrestore(&dev
->wl
->irq_lock
, flags
);
1873 static void b43_interrupt_ack(struct b43_wldev
*dev
, u32 reason
)
1875 b43_write32(dev
, B43_MMIO_GEN_IRQ_REASON
, reason
);
1877 b43_write32(dev
, B43_MMIO_DMA0_REASON
, dev
->dma_reason
[0]);
1878 b43_write32(dev
, B43_MMIO_DMA1_REASON
, dev
->dma_reason
[1]);
1879 b43_write32(dev
, B43_MMIO_DMA2_REASON
, dev
->dma_reason
[2]);
1880 b43_write32(dev
, B43_MMIO_DMA3_REASON
, dev
->dma_reason
[3]);
1881 b43_write32(dev
, B43_MMIO_DMA4_REASON
, dev
->dma_reason
[4]);
1883 b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]);
1887 /* Interrupt handler top-half */
1888 static irqreturn_t
b43_interrupt_handler(int irq
, void *dev_id
)
1890 irqreturn_t ret
= IRQ_NONE
;
1891 struct b43_wldev
*dev
= dev_id
;
1896 spin_lock(&dev
->wl
->irq_lock
);
1898 if (unlikely(b43_status(dev
) < B43_STAT_STARTED
)) {
1899 /* This can only happen on shared IRQ lines. */
1902 reason
= b43_read32(dev
, B43_MMIO_GEN_IRQ_REASON
);
1903 if (reason
== 0xffffffff) /* shared IRQ */
1906 reason
&= dev
->irq_mask
;
1910 dev
->dma_reason
[0] = b43_read32(dev
, B43_MMIO_DMA0_REASON
)
1912 dev
->dma_reason
[1] = b43_read32(dev
, B43_MMIO_DMA1_REASON
)
1914 dev
->dma_reason
[2] = b43_read32(dev
, B43_MMIO_DMA2_REASON
)
1916 dev
->dma_reason
[3] = b43_read32(dev
, B43_MMIO_DMA3_REASON
)
1918 dev
->dma_reason
[4] = b43_read32(dev
, B43_MMIO_DMA4_REASON
)
1921 dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON)
1925 b43_interrupt_ack(dev
, reason
);
1926 /* disable all IRQs. They are enabled again in the bottom half. */
1927 b43_write32(dev
, B43_MMIO_GEN_IRQ_MASK
, 0);
1928 /* save the reason code and call our bottom half. */
1929 dev
->irq_reason
= reason
;
1930 tasklet_schedule(&dev
->isr_tasklet
);
1933 spin_unlock(&dev
->wl
->irq_lock
);
1938 void b43_do_release_fw(struct b43_firmware_file
*fw
)
1940 release_firmware(fw
->data
);
1942 fw
->filename
= NULL
;
1945 static void b43_release_firmware(struct b43_wldev
*dev
)
1947 b43_do_release_fw(&dev
->fw
.ucode
);
1948 b43_do_release_fw(&dev
->fw
.pcm
);
1949 b43_do_release_fw(&dev
->fw
.initvals
);
1950 b43_do_release_fw(&dev
->fw
.initvals_band
);
1953 static void b43_print_fw_helptext(struct b43_wl
*wl
, bool error
)
1957 "http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware " \
1958 "and download the correct firmware for this driver version. " \
1959 "Please carefully read all instructions on this website.\n";
1967 int b43_do_request_fw(struct b43_request_fw_context
*ctx
,
1969 struct b43_firmware_file
*fw
)
1971 const struct firmware
*blob
;
1972 struct b43_fw_header
*hdr
;
1977 /* Don't fetch anything. Free possibly cached firmware. */
1978 /* FIXME: We should probably keep it anyway, to save some headache
1979 * on suspend/resume with multiband devices. */
1980 b43_do_release_fw(fw
);
1984 if ((fw
->type
== ctx
->req_type
) &&
1985 (strcmp(fw
->filename
, name
) == 0))
1986 return 0; /* Already have this fw. */
1987 /* Free the cached firmware first. */
1988 /* FIXME: We should probably do this later after we successfully
1989 * got the new fw. This could reduce headache with multiband devices.
1990 * We could also redesign this to cache the firmware for all possible
1991 * bands all the time. */
1992 b43_do_release_fw(fw
);
1995 switch (ctx
->req_type
) {
1996 case B43_FWTYPE_PROPRIETARY
:
1997 snprintf(ctx
->fwname
, sizeof(ctx
->fwname
),
1999 modparam_fwpostfix
, name
);
2001 case B43_FWTYPE_OPENSOURCE
:
2002 snprintf(ctx
->fwname
, sizeof(ctx
->fwname
),
2004 modparam_fwpostfix
, name
);
2010 err
= request_firmware(&blob
, ctx
->fwname
, ctx
->dev
->dev
->dev
);
2011 if (err
== -ENOENT
) {
2012 snprintf(ctx
->errors
[ctx
->req_type
],
2013 sizeof(ctx
->errors
[ctx
->req_type
]),
2014 "Firmware file \"%s\" not found\n", ctx
->fwname
);
2017 snprintf(ctx
->errors
[ctx
->req_type
],
2018 sizeof(ctx
->errors
[ctx
->req_type
]),
2019 "Firmware file \"%s\" request failed (err=%d)\n",
2023 if (blob
->size
< sizeof(struct b43_fw_header
))
2025 hdr
= (struct b43_fw_header
*)(blob
->data
);
2026 switch (hdr
->type
) {
2027 case B43_FW_TYPE_UCODE
:
2028 case B43_FW_TYPE_PCM
:
2029 size
= be32_to_cpu(hdr
->size
);
2030 if (size
!= blob
->size
- sizeof(struct b43_fw_header
))
2033 case B43_FW_TYPE_IV
:
2042 fw
->filename
= name
;
2043 fw
->type
= ctx
->req_type
;
2048 snprintf(ctx
->errors
[ctx
->req_type
],
2049 sizeof(ctx
->errors
[ctx
->req_type
]),
2050 "Firmware file \"%s\" format error.\n", ctx
->fwname
);
2051 release_firmware(blob
);
2056 static int b43_try_request_fw(struct b43_request_fw_context
*ctx
)
2058 struct b43_wldev
*dev
= ctx
->dev
;
2059 struct b43_firmware
*fw
= &ctx
->dev
->fw
;
2060 const u8 rev
= ctx
->dev
->dev
->id
.revision
;
2061 const char *filename
;
2066 tmshigh
= ssb_read32(dev
->dev
, SSB_TMSHIGH
);
2067 if ((rev
>= 5) && (rev
<= 10))
2068 filename
= "ucode5";
2069 else if ((rev
>= 11) && (rev
<= 12))
2070 filename
= "ucode11";
2072 filename
= "ucode13";
2074 filename
= "ucode14";
2076 filename
= "ucode15";
2079 err
= b43_do_request_fw(ctx
, filename
, &fw
->ucode
);
2084 if ((rev
>= 5) && (rev
<= 10))
2090 fw
->pcm_request_failed
= 0;
2091 err
= b43_do_request_fw(ctx
, filename
, &fw
->pcm
);
2092 if (err
== -ENOENT
) {
2093 /* We did not find a PCM file? Not fatal, but
2094 * core rev <= 10 must do without hwcrypto then. */
2095 fw
->pcm_request_failed
= 1;
2100 switch (dev
->phy
.type
) {
2102 if ((rev
>= 5) && (rev
<= 10)) {
2103 if (tmshigh
& B43_TMSHIGH_HAVE_2GHZ_PHY
)
2104 filename
= "a0g1initvals5";
2106 filename
= "a0g0initvals5";
2108 goto err_no_initvals
;
2111 if ((rev
>= 5) && (rev
<= 10))
2112 filename
= "b0g0initvals5";
2114 filename
= "b0g0initvals13";
2116 goto err_no_initvals
;
2119 if ((rev
>= 11) && (rev
<= 12))
2120 filename
= "n0initvals11";
2122 goto err_no_initvals
;
2124 case B43_PHYTYPE_LP
:
2126 filename
= "lp0initvals13";
2128 filename
= "lp0initvals14";
2130 filename
= "lp0initvals15";
2132 goto err_no_initvals
;
2135 goto err_no_initvals
;
2137 err
= b43_do_request_fw(ctx
, filename
, &fw
->initvals
);
2141 /* Get bandswitch initvals */
2142 switch (dev
->phy
.type
) {
2144 if ((rev
>= 5) && (rev
<= 10)) {
2145 if (tmshigh
& B43_TMSHIGH_HAVE_2GHZ_PHY
)
2146 filename
= "a0g1bsinitvals5";
2148 filename
= "a0g0bsinitvals5";
2149 } else if (rev
>= 11)
2152 goto err_no_initvals
;
2155 if ((rev
>= 5) && (rev
<= 10))
2156 filename
= "b0g0bsinitvals5";
2160 goto err_no_initvals
;
2163 if ((rev
>= 11) && (rev
<= 12))
2164 filename
= "n0bsinitvals11";
2166 goto err_no_initvals
;
2168 case B43_PHYTYPE_LP
:
2170 filename
= "lp0bsinitvals13";
2172 filename
= "lp0bsinitvals14";
2174 filename
= "lp0bsinitvals15";
2176 goto err_no_initvals
;
2179 goto err_no_initvals
;
2181 err
= b43_do_request_fw(ctx
, filename
, &fw
->initvals_band
);
2188 err
= ctx
->fatal_failure
= -EOPNOTSUPP
;
2189 b43err(dev
->wl
, "The driver does not know which firmware (ucode) "
2190 "is required for your device (wl-core rev %u)\n", rev
);
2194 err
= ctx
->fatal_failure
= -EOPNOTSUPP
;
2195 b43err(dev
->wl
, "The driver does not know which firmware (PCM) "
2196 "is required for your device (wl-core rev %u)\n", rev
);
2200 err
= ctx
->fatal_failure
= -EOPNOTSUPP
;
2201 b43err(dev
->wl
, "The driver does not know which firmware (initvals) "
2202 "is required for your device (wl-core rev %u)\n", rev
);
2206 /* We failed to load this firmware image. The error message
2207 * already is in ctx->errors. Return and let our caller decide
2212 b43_release_firmware(dev
);
2216 static int b43_request_firmware(struct b43_wldev
*dev
)
2218 struct b43_request_fw_context
*ctx
;
2223 ctx
= kzalloc(sizeof(*ctx
), GFP_KERNEL
);
2228 ctx
->req_type
= B43_FWTYPE_PROPRIETARY
;
2229 err
= b43_try_request_fw(ctx
);
2231 goto out
; /* Successfully loaded it. */
2232 err
= ctx
->fatal_failure
;
2236 ctx
->req_type
= B43_FWTYPE_OPENSOURCE
;
2237 err
= b43_try_request_fw(ctx
);
2239 goto out
; /* Successfully loaded it. */
2240 err
= ctx
->fatal_failure
;
2244 /* Could not find a usable firmware. Print the errors. */
2245 for (i
= 0; i
< B43_NR_FWTYPES
; i
++) {
2246 errmsg
= ctx
->errors
[i
];
2248 b43err(dev
->wl
, errmsg
);
2250 b43_print_fw_helptext(dev
->wl
, 1);
2258 static int b43_upload_microcode(struct b43_wldev
*dev
)
2260 const size_t hdr_len
= sizeof(struct b43_fw_header
);
2262 unsigned int i
, len
;
2263 u16 fwrev
, fwpatch
, fwdate
, fwtime
;
2267 /* Jump the microcode PSM to offset 0 */
2268 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
2269 B43_WARN_ON(macctl
& B43_MACCTL_PSM_RUN
);
2270 macctl
|= B43_MACCTL_PSM_JMP0
;
2271 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
2272 /* Zero out all microcode PSM registers and shared memory. */
2273 for (i
= 0; i
< 64; i
++)
2274 b43_shm_write16(dev
, B43_SHM_SCRATCH
, i
, 0);
2275 for (i
= 0; i
< 4096; i
+= 2)
2276 b43_shm_write16(dev
, B43_SHM_SHARED
, i
, 0);
2278 /* Upload Microcode. */
2279 data
= (__be32
*) (dev
->fw
.ucode
.data
->data
+ hdr_len
);
2280 len
= (dev
->fw
.ucode
.data
->size
- hdr_len
) / sizeof(__be32
);
2281 b43_shm_control_word(dev
, B43_SHM_UCODE
| B43_SHM_AUTOINC_W
, 0x0000);
2282 for (i
= 0; i
< len
; i
++) {
2283 b43_write32(dev
, B43_MMIO_SHM_DATA
, be32_to_cpu(data
[i
]));
2287 if (dev
->fw
.pcm
.data
) {
2288 /* Upload PCM data. */
2289 data
= (__be32
*) (dev
->fw
.pcm
.data
->data
+ hdr_len
);
2290 len
= (dev
->fw
.pcm
.data
->size
- hdr_len
) / sizeof(__be32
);
2291 b43_shm_control_word(dev
, B43_SHM_HW
, 0x01EA);
2292 b43_write32(dev
, B43_MMIO_SHM_DATA
, 0x00004000);
2293 /* No need for autoinc bit in SHM_HW */
2294 b43_shm_control_word(dev
, B43_SHM_HW
, 0x01EB);
2295 for (i
= 0; i
< len
; i
++) {
2296 b43_write32(dev
, B43_MMIO_SHM_DATA
, be32_to_cpu(data
[i
]));
2301 b43_write32(dev
, B43_MMIO_GEN_IRQ_REASON
, B43_IRQ_ALL
);
2303 /* Start the microcode PSM */
2304 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
2305 macctl
&= ~B43_MACCTL_PSM_JMP0
;
2306 macctl
|= B43_MACCTL_PSM_RUN
;
2307 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
2309 /* Wait for the microcode to load and respond */
2312 tmp
= b43_read32(dev
, B43_MMIO_GEN_IRQ_REASON
);
2313 if (tmp
== B43_IRQ_MAC_SUSPENDED
)
2317 b43err(dev
->wl
, "Microcode not responding\n");
2318 b43_print_fw_helptext(dev
->wl
, 1);
2322 msleep_interruptible(50);
2323 if (signal_pending(current
)) {
2328 b43_read32(dev
, B43_MMIO_GEN_IRQ_REASON
); /* dummy read */
2330 /* Get and check the revisions. */
2331 fwrev
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_UCODEREV
);
2332 fwpatch
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_UCODEPATCH
);
2333 fwdate
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_UCODEDATE
);
2334 fwtime
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_UCODETIME
);
2336 if (fwrev
<= 0x128) {
2337 b43err(dev
->wl
, "YOUR FIRMWARE IS TOO OLD. Firmware from "
2338 "binary drivers older than version 4.x is unsupported. "
2339 "You must upgrade your firmware files.\n");
2340 b43_print_fw_helptext(dev
->wl
, 1);
2344 dev
->fw
.rev
= fwrev
;
2345 dev
->fw
.patch
= fwpatch
;
2346 dev
->fw
.opensource
= (fwdate
== 0xFFFF);
2348 /* Default to use-all-queues. */
2349 dev
->wl
->hw
->queues
= dev
->wl
->mac80211_initially_registered_queues
;
2350 dev
->qos_enabled
= !!modparam_qos
;
2351 /* Default to firmware/hardware crypto acceleration. */
2352 dev
->hwcrypto_enabled
= 1;
2354 if (dev
->fw
.opensource
) {
2357 /* Patchlevel info is encoded in the "time" field. */
2358 dev
->fw
.patch
= fwtime
;
2359 b43info(dev
->wl
, "Loading OpenSource firmware version %u.%u\n",
2360 dev
->fw
.rev
, dev
->fw
.patch
);
2362 fwcapa
= b43_fwcapa_read(dev
);
2363 if (!(fwcapa
& B43_FWCAPA_HWCRYPTO
) || dev
->fw
.pcm_request_failed
) {
2364 b43info(dev
->wl
, "Hardware crypto acceleration not supported by firmware\n");
2365 /* Disable hardware crypto and fall back to software crypto. */
2366 dev
->hwcrypto_enabled
= 0;
2368 if (!(fwcapa
& B43_FWCAPA_QOS
)) {
2369 b43info(dev
->wl
, "QoS not supported by firmware\n");
2370 /* Disable QoS. Tweak hw->queues to 1. It will be restored before
2371 * ieee80211_unregister to make sure the networking core can
2372 * properly free possible resources. */
2373 dev
->wl
->hw
->queues
= 1;
2374 dev
->qos_enabled
= 0;
2377 b43info(dev
->wl
, "Loading firmware version %u.%u "
2378 "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n",
2380 (fwdate
>> 12) & 0xF, (fwdate
>> 8) & 0xF, fwdate
& 0xFF,
2381 (fwtime
>> 11) & 0x1F, (fwtime
>> 5) & 0x3F, fwtime
& 0x1F);
2382 if (dev
->fw
.pcm_request_failed
) {
2383 b43warn(dev
->wl
, "No \"pcm5.fw\" firmware file found. "
2384 "Hardware accelerated cryptography is disabled.\n");
2385 b43_print_fw_helptext(dev
->wl
, 0);
2389 if (b43_is_old_txhdr_format(dev
)) {
2390 /* We're over the deadline, but we keep support for old fw
2391 * until it turns out to be in major conflict with something new. */
2392 b43warn(dev
->wl
, "You are using an old firmware image. "
2393 "Support for old firmware will be removed soon "
2394 "(official deadline was July 2008).\n");
2395 b43_print_fw_helptext(dev
->wl
, 0);
2401 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
2402 macctl
&= ~B43_MACCTL_PSM_RUN
;
2403 macctl
|= B43_MACCTL_PSM_JMP0
;
2404 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
2409 static int b43_write_initvals(struct b43_wldev
*dev
,
2410 const struct b43_iv
*ivals
,
2414 const struct b43_iv
*iv
;
2419 BUILD_BUG_ON(sizeof(struct b43_iv
) != 6);
2421 for (i
= 0; i
< count
; i
++) {
2422 if (array_size
< sizeof(iv
->offset_size
))
2424 array_size
-= sizeof(iv
->offset_size
);
2425 offset
= be16_to_cpu(iv
->offset_size
);
2426 bit32
= !!(offset
& B43_IV_32BIT
);
2427 offset
&= B43_IV_OFFSET_MASK
;
2428 if (offset
>= 0x1000)
2433 if (array_size
< sizeof(iv
->data
.d32
))
2435 array_size
-= sizeof(iv
->data
.d32
);
2437 value
= get_unaligned_be32(&iv
->data
.d32
);
2438 b43_write32(dev
, offset
, value
);
2440 iv
= (const struct b43_iv
*)((const uint8_t *)iv
+
2446 if (array_size
< sizeof(iv
->data
.d16
))
2448 array_size
-= sizeof(iv
->data
.d16
);
2450 value
= be16_to_cpu(iv
->data
.d16
);
2451 b43_write16(dev
, offset
, value
);
2453 iv
= (const struct b43_iv
*)((const uint8_t *)iv
+
2464 b43err(dev
->wl
, "Initial Values Firmware file-format error.\n");
2465 b43_print_fw_helptext(dev
->wl
, 1);
2470 static int b43_upload_initvals(struct b43_wldev
*dev
)
2472 const size_t hdr_len
= sizeof(struct b43_fw_header
);
2473 const struct b43_fw_header
*hdr
;
2474 struct b43_firmware
*fw
= &dev
->fw
;
2475 const struct b43_iv
*ivals
;
2479 hdr
= (const struct b43_fw_header
*)(fw
->initvals
.data
->data
);
2480 ivals
= (const struct b43_iv
*)(fw
->initvals
.data
->data
+ hdr_len
);
2481 count
= be32_to_cpu(hdr
->size
);
2482 err
= b43_write_initvals(dev
, ivals
, count
,
2483 fw
->initvals
.data
->size
- hdr_len
);
2486 if (fw
->initvals_band
.data
) {
2487 hdr
= (const struct b43_fw_header
*)(fw
->initvals_band
.data
->data
);
2488 ivals
= (const struct b43_iv
*)(fw
->initvals_band
.data
->data
+ hdr_len
);
2489 count
= be32_to_cpu(hdr
->size
);
2490 err
= b43_write_initvals(dev
, ivals
, count
,
2491 fw
->initvals_band
.data
->size
- hdr_len
);
2500 /* Initialize the GPIOs
2501 * http://bcm-specs.sipsolutions.net/GPIO
2503 static int b43_gpio_init(struct b43_wldev
*dev
)
2505 struct ssb_bus
*bus
= dev
->dev
->bus
;
2506 struct ssb_device
*gpiodev
, *pcidev
= NULL
;
2509 b43_write32(dev
, B43_MMIO_MACCTL
, b43_read32(dev
, B43_MMIO_MACCTL
)
2510 & ~B43_MACCTL_GPOUTSMSK
);
2512 b43_write16(dev
, B43_MMIO_GPIO_MASK
, b43_read16(dev
, B43_MMIO_GPIO_MASK
)
2517 if (dev
->dev
->bus
->chip_id
== 0x4301) {
2521 if (0 /* FIXME: conditional unknown */ ) {
2522 b43_write16(dev
, B43_MMIO_GPIO_MASK
,
2523 b43_read16(dev
, B43_MMIO_GPIO_MASK
)
2528 if (dev
->dev
->bus
->sprom
.boardflags_lo
& B43_BFL_PACTRL
) {
2529 b43_write16(dev
, B43_MMIO_GPIO_MASK
,
2530 b43_read16(dev
, B43_MMIO_GPIO_MASK
)
2535 if (dev
->dev
->id
.revision
>= 2)
2536 mask
|= 0x0010; /* FIXME: This is redundant. */
2538 #ifdef CONFIG_SSB_DRIVER_PCICORE
2539 pcidev
= bus
->pcicore
.dev
;
2541 gpiodev
= bus
->chipco
.dev
? : pcidev
;
2544 ssb_write32(gpiodev
, B43_GPIO_CONTROL
,
2545 (ssb_read32(gpiodev
, B43_GPIO_CONTROL
)
2551 /* Turn off all GPIO stuff. Call this on module unload, for example. */
2552 static void b43_gpio_cleanup(struct b43_wldev
*dev
)
2554 struct ssb_bus
*bus
= dev
->dev
->bus
;
2555 struct ssb_device
*gpiodev
, *pcidev
= NULL
;
2557 #ifdef CONFIG_SSB_DRIVER_PCICORE
2558 pcidev
= bus
->pcicore
.dev
;
2560 gpiodev
= bus
->chipco
.dev
? : pcidev
;
2563 ssb_write32(gpiodev
, B43_GPIO_CONTROL
, 0);
2566 /* http://bcm-specs.sipsolutions.net/EnableMac */
2567 void b43_mac_enable(struct b43_wldev
*dev
)
2569 if (b43_debug(dev
, B43_DBG_FIRMWARE
)) {
2572 fwstate
= b43_shm_read16(dev
, B43_SHM_SHARED
,
2573 B43_SHM_SH_UCODESTAT
);
2574 if ((fwstate
!= B43_SHM_SH_UCODESTAT_SUSP
) &&
2575 (fwstate
!= B43_SHM_SH_UCODESTAT_SLEEP
)) {
2576 b43err(dev
->wl
, "b43_mac_enable(): The firmware "
2577 "should be suspended, but current state is %u\n",
2582 dev
->mac_suspended
--;
2583 B43_WARN_ON(dev
->mac_suspended
< 0);
2584 if (dev
->mac_suspended
== 0) {
2585 b43_write32(dev
, B43_MMIO_MACCTL
,
2586 b43_read32(dev
, B43_MMIO_MACCTL
)
2587 | B43_MACCTL_ENABLED
);
2588 b43_write32(dev
, B43_MMIO_GEN_IRQ_REASON
,
2589 B43_IRQ_MAC_SUSPENDED
);
2591 b43_read32(dev
, B43_MMIO_MACCTL
);
2592 b43_read32(dev
, B43_MMIO_GEN_IRQ_REASON
);
2593 b43_power_saving_ctl_bits(dev
, 0);
2597 /* http://bcm-specs.sipsolutions.net/SuspendMAC */
2598 void b43_mac_suspend(struct b43_wldev
*dev
)
2604 B43_WARN_ON(dev
->mac_suspended
< 0);
2606 if (dev
->mac_suspended
== 0) {
2607 b43_power_saving_ctl_bits(dev
, B43_PS_AWAKE
);
2608 b43_write32(dev
, B43_MMIO_MACCTL
,
2609 b43_read32(dev
, B43_MMIO_MACCTL
)
2610 & ~B43_MACCTL_ENABLED
);
2611 /* force pci to flush the write */
2612 b43_read32(dev
, B43_MMIO_MACCTL
);
2613 for (i
= 35; i
; i
--) {
2614 tmp
= b43_read32(dev
, B43_MMIO_GEN_IRQ_REASON
);
2615 if (tmp
& B43_IRQ_MAC_SUSPENDED
)
2619 /* Hm, it seems this will take some time. Use msleep(). */
2620 for (i
= 40; i
; i
--) {
2621 tmp
= b43_read32(dev
, B43_MMIO_GEN_IRQ_REASON
);
2622 if (tmp
& B43_IRQ_MAC_SUSPENDED
)
2626 b43err(dev
->wl
, "MAC suspend failed\n");
2629 dev
->mac_suspended
++;
2632 static void b43_adjust_opmode(struct b43_wldev
*dev
)
2634 struct b43_wl
*wl
= dev
->wl
;
2638 ctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
2639 /* Reset status to STA infrastructure mode. */
2640 ctl
&= ~B43_MACCTL_AP
;
2641 ctl
&= ~B43_MACCTL_KEEP_CTL
;
2642 ctl
&= ~B43_MACCTL_KEEP_BADPLCP
;
2643 ctl
&= ~B43_MACCTL_KEEP_BAD
;
2644 ctl
&= ~B43_MACCTL_PROMISC
;
2645 ctl
&= ~B43_MACCTL_BEACPROMISC
;
2646 ctl
|= B43_MACCTL_INFRA
;
2648 if (b43_is_mode(wl
, NL80211_IFTYPE_AP
) ||
2649 b43_is_mode(wl
, NL80211_IFTYPE_MESH_POINT
))
2650 ctl
|= B43_MACCTL_AP
;
2651 else if (b43_is_mode(wl
, NL80211_IFTYPE_ADHOC
))
2652 ctl
&= ~B43_MACCTL_INFRA
;
2654 if (wl
->filter_flags
& FIF_CONTROL
)
2655 ctl
|= B43_MACCTL_KEEP_CTL
;
2656 if (wl
->filter_flags
& FIF_FCSFAIL
)
2657 ctl
|= B43_MACCTL_KEEP_BAD
;
2658 if (wl
->filter_flags
& FIF_PLCPFAIL
)
2659 ctl
|= B43_MACCTL_KEEP_BADPLCP
;
2660 if (wl
->filter_flags
& FIF_PROMISC_IN_BSS
)
2661 ctl
|= B43_MACCTL_PROMISC
;
2662 if (wl
->filter_flags
& FIF_BCN_PRBRESP_PROMISC
)
2663 ctl
|= B43_MACCTL_BEACPROMISC
;
2665 /* Workaround: On old hardware the HW-MAC-address-filter
2666 * doesn't work properly, so always run promisc in filter
2667 * it in software. */
2668 if (dev
->dev
->id
.revision
<= 4)
2669 ctl
|= B43_MACCTL_PROMISC
;
2671 b43_write32(dev
, B43_MMIO_MACCTL
, ctl
);
2674 if ((ctl
& B43_MACCTL_INFRA
) && !(ctl
& B43_MACCTL_AP
)) {
2675 if (dev
->dev
->bus
->chip_id
== 0x4306 &&
2676 dev
->dev
->bus
->chip_rev
== 3)
2681 b43_write16(dev
, 0x612, cfp_pretbtt
);
2684 static void b43_rate_memory_write(struct b43_wldev
*dev
, u16 rate
, int is_ofdm
)
2690 offset
+= (b43_plcp_get_ratecode_ofdm(rate
) & 0x000F) * 2;
2693 offset
+= (b43_plcp_get_ratecode_cck(rate
) & 0x000F) * 2;
2695 b43_shm_write16(dev
, B43_SHM_SHARED
, offset
+ 0x20,
2696 b43_shm_read16(dev
, B43_SHM_SHARED
, offset
));
2699 static void b43_rate_memory_init(struct b43_wldev
*dev
)
2701 switch (dev
->phy
.type
) {
2705 case B43_PHYTYPE_LP
:
2706 b43_rate_memory_write(dev
, B43_OFDM_RATE_6MB
, 1);
2707 b43_rate_memory_write(dev
, B43_OFDM_RATE_12MB
, 1);
2708 b43_rate_memory_write(dev
, B43_OFDM_RATE_18MB
, 1);
2709 b43_rate_memory_write(dev
, B43_OFDM_RATE_24MB
, 1);
2710 b43_rate_memory_write(dev
, B43_OFDM_RATE_36MB
, 1);
2711 b43_rate_memory_write(dev
, B43_OFDM_RATE_48MB
, 1);
2712 b43_rate_memory_write(dev
, B43_OFDM_RATE_54MB
, 1);
2713 if (dev
->phy
.type
== B43_PHYTYPE_A
)
2717 b43_rate_memory_write(dev
, B43_CCK_RATE_1MB
, 0);
2718 b43_rate_memory_write(dev
, B43_CCK_RATE_2MB
, 0);
2719 b43_rate_memory_write(dev
, B43_CCK_RATE_5MB
, 0);
2720 b43_rate_memory_write(dev
, B43_CCK_RATE_11MB
, 0);
2727 /* Set the default values for the PHY TX Control Words. */
2728 static void b43_set_phytxctl_defaults(struct b43_wldev
*dev
)
2732 ctl
|= B43_TXH_PHY_ENC_CCK
;
2733 ctl
|= B43_TXH_PHY_ANT01AUTO
;
2734 ctl
|= B43_TXH_PHY_TXPWR
;
2736 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_BEACPHYCTL
, ctl
);
2737 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_ACKCTSPHYCTL
, ctl
);
2738 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_PRPHYCTL
, ctl
);
2741 /* Set the TX-Antenna for management frames sent by firmware. */
2742 static void b43_mgmtframe_txantenna(struct b43_wldev
*dev
, int antenna
)
2747 ant
= b43_antenna_to_phyctl(antenna
);
2750 tmp
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_ACKCTSPHYCTL
);
2751 tmp
= (tmp
& ~B43_TXH_PHY_ANT
) | ant
;
2752 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_ACKCTSPHYCTL
, tmp
);
2753 /* For Probe Resposes */
2754 tmp
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_PRPHYCTL
);
2755 tmp
= (tmp
& ~B43_TXH_PHY_ANT
) | ant
;
2756 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_PRPHYCTL
, tmp
);
2759 /* This is the opposite of b43_chip_init() */
2760 static void b43_chip_exit(struct b43_wldev
*dev
)
2763 b43_gpio_cleanup(dev
);
2764 /* firmware is released later */
2767 /* Initialize the chip
2768 * http://bcm-specs.sipsolutions.net/ChipInit
2770 static int b43_chip_init(struct b43_wldev
*dev
)
2772 struct b43_phy
*phy
= &dev
->phy
;
2774 u32 value32
, macctl
;
2777 /* Initialize the MAC control */
2778 macctl
= B43_MACCTL_IHR_ENABLED
| B43_MACCTL_SHM_ENABLED
;
2780 macctl
|= B43_MACCTL_GMODE
;
2781 macctl
|= B43_MACCTL_INFRA
;
2782 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
2784 err
= b43_request_firmware(dev
);
2787 err
= b43_upload_microcode(dev
);
2789 goto out
; /* firmware is released later */
2791 err
= b43_gpio_init(dev
);
2793 goto out
; /* firmware is released later */
2795 err
= b43_upload_initvals(dev
);
2797 goto err_gpio_clean
;
2799 /* Turn the Analog on and initialize the PHY. */
2800 phy
->ops
->switch_analog(dev
, 1);
2801 err
= b43_phy_init(dev
);
2803 goto err_gpio_clean
;
2805 /* Disable Interference Mitigation. */
2806 if (phy
->ops
->interf_mitigation
)
2807 phy
->ops
->interf_mitigation(dev
, B43_INTERFMODE_NONE
);
2809 /* Select the antennae */
2810 if (phy
->ops
->set_rx_antenna
)
2811 phy
->ops
->set_rx_antenna(dev
, B43_ANTENNA_DEFAULT
);
2812 b43_mgmtframe_txantenna(dev
, B43_ANTENNA_DEFAULT
);
2814 if (phy
->type
== B43_PHYTYPE_B
) {
2815 value16
= b43_read16(dev
, 0x005E);
2817 b43_write16(dev
, 0x005E, value16
);
2819 b43_write32(dev
, 0x0100, 0x01000000);
2820 if (dev
->dev
->id
.revision
< 5)
2821 b43_write32(dev
, 0x010C, 0x01000000);
2823 b43_write32(dev
, B43_MMIO_MACCTL
, b43_read32(dev
, B43_MMIO_MACCTL
)
2824 & ~B43_MACCTL_INFRA
);
2825 b43_write32(dev
, B43_MMIO_MACCTL
, b43_read32(dev
, B43_MMIO_MACCTL
)
2826 | B43_MACCTL_INFRA
);
2828 /* Probe Response Timeout value */
2829 /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
2830 b43_shm_write16(dev
, B43_SHM_SHARED
, 0x0074, 0x0000);
2832 /* Initially set the wireless operation mode. */
2833 b43_adjust_opmode(dev
);
2835 if (dev
->dev
->id
.revision
< 3) {
2836 b43_write16(dev
, 0x060E, 0x0000);
2837 b43_write16(dev
, 0x0610, 0x8000);
2838 b43_write16(dev
, 0x0604, 0x0000);
2839 b43_write16(dev
, 0x0606, 0x0200);
2841 b43_write32(dev
, 0x0188, 0x80000000);
2842 b43_write32(dev
, 0x018C, 0x02000000);
2844 b43_write32(dev
, B43_MMIO_GEN_IRQ_REASON
, 0x00004000);
2845 b43_write32(dev
, B43_MMIO_DMA0_IRQ_MASK
, 0x0001DC00);
2846 b43_write32(dev
, B43_MMIO_DMA1_IRQ_MASK
, 0x0000DC00);
2847 b43_write32(dev
, B43_MMIO_DMA2_IRQ_MASK
, 0x0000DC00);
2848 b43_write32(dev
, B43_MMIO_DMA3_IRQ_MASK
, 0x0001DC00);
2849 b43_write32(dev
, B43_MMIO_DMA4_IRQ_MASK
, 0x0000DC00);
2850 b43_write32(dev
, B43_MMIO_DMA5_IRQ_MASK
, 0x0000DC00);
2852 value32
= ssb_read32(dev
->dev
, SSB_TMSLOW
);
2853 value32
|= 0x00100000;
2854 ssb_write32(dev
->dev
, SSB_TMSLOW
, value32
);
2856 b43_write16(dev
, B43_MMIO_POWERUP_DELAY
,
2857 dev
->dev
->bus
->chipco
.fast_pwrup_delay
);
2860 b43dbg(dev
->wl
, "Chip initialized\n");
2865 b43_gpio_cleanup(dev
);
2869 static void b43_periodic_every60sec(struct b43_wldev
*dev
)
2871 const struct b43_phy_operations
*ops
= dev
->phy
.ops
;
2873 if (ops
->pwork_60sec
)
2874 ops
->pwork_60sec(dev
);
2876 /* Force check the TX power emission now. */
2877 b43_phy_txpower_check(dev
, B43_TXPWR_IGNORE_TIME
);
2880 static void b43_periodic_every30sec(struct b43_wldev
*dev
)
2882 /* Update device statistics. */
2883 b43_calculate_link_quality(dev
);
2886 static void b43_periodic_every15sec(struct b43_wldev
*dev
)
2888 struct b43_phy
*phy
= &dev
->phy
;
2891 if (dev
->fw
.opensource
) {
2892 /* Check if the firmware is still alive.
2893 * It will reset the watchdog counter to 0 in its idle loop. */
2894 wdr
= b43_shm_read16(dev
, B43_SHM_SCRATCH
, B43_WATCHDOG_REG
);
2895 if (unlikely(wdr
)) {
2896 b43err(dev
->wl
, "Firmware watchdog: The firmware died!\n");
2897 b43_controller_restart(dev
, "Firmware watchdog");
2900 b43_shm_write16(dev
, B43_SHM_SCRATCH
,
2901 B43_WATCHDOG_REG
, 1);
2905 if (phy
->ops
->pwork_15sec
)
2906 phy
->ops
->pwork_15sec(dev
);
2908 atomic_set(&phy
->txerr_cnt
, B43_PHY_TX_BADNESS_LIMIT
);
2912 static void do_periodic_work(struct b43_wldev
*dev
)
2916 state
= dev
->periodic_state
;
2918 b43_periodic_every60sec(dev
);
2920 b43_periodic_every30sec(dev
);
2921 b43_periodic_every15sec(dev
);
2924 /* Periodic work locking policy:
2925 * The whole periodic work handler is protected by
2926 * wl->mutex. If another lock is needed somewhere in the
2927 * pwork callchain, it's aquired in-place, where it's needed.
2929 static void b43_periodic_work_handler(struct work_struct
*work
)
2931 struct b43_wldev
*dev
= container_of(work
, struct b43_wldev
,
2932 periodic_work
.work
);
2933 struct b43_wl
*wl
= dev
->wl
;
2934 unsigned long delay
;
2936 mutex_lock(&wl
->mutex
);
2938 if (unlikely(b43_status(dev
) != B43_STAT_STARTED
))
2940 if (b43_debug(dev
, B43_DBG_PWORK_STOP
))
2943 do_periodic_work(dev
);
2945 dev
->periodic_state
++;
2947 if (b43_debug(dev
, B43_DBG_PWORK_FAST
))
2948 delay
= msecs_to_jiffies(50);
2950 delay
= round_jiffies_relative(HZ
* 15);
2951 ieee80211_queue_delayed_work(wl
->hw
, &dev
->periodic_work
, delay
);
2953 mutex_unlock(&wl
->mutex
);
2956 static void b43_periodic_tasks_setup(struct b43_wldev
*dev
)
2958 struct delayed_work
*work
= &dev
->periodic_work
;
2960 dev
->periodic_state
= 0;
2961 INIT_DELAYED_WORK(work
, b43_periodic_work_handler
);
2962 ieee80211_queue_delayed_work(dev
->wl
->hw
, work
, 0);
2965 /* Check if communication with the device works correctly. */
2966 static int b43_validate_chipaccess(struct b43_wldev
*dev
)
2968 u32 v
, backup0
, backup4
;
2970 backup0
= b43_shm_read32(dev
, B43_SHM_SHARED
, 0);
2971 backup4
= b43_shm_read32(dev
, B43_SHM_SHARED
, 4);
2973 /* Check for read/write and endianness problems. */
2974 b43_shm_write32(dev
, B43_SHM_SHARED
, 0, 0x55AAAA55);
2975 if (b43_shm_read32(dev
, B43_SHM_SHARED
, 0) != 0x55AAAA55)
2977 b43_shm_write32(dev
, B43_SHM_SHARED
, 0, 0xAA5555AA);
2978 if (b43_shm_read32(dev
, B43_SHM_SHARED
, 0) != 0xAA5555AA)
2981 /* Check if unaligned 32bit SHM_SHARED access works properly.
2982 * However, don't bail out on failure, because it's noncritical. */
2983 b43_shm_write16(dev
, B43_SHM_SHARED
, 0, 0x1122);
2984 b43_shm_write16(dev
, B43_SHM_SHARED
, 2, 0x3344);
2985 b43_shm_write16(dev
, B43_SHM_SHARED
, 4, 0x5566);
2986 b43_shm_write16(dev
, B43_SHM_SHARED
, 6, 0x7788);
2987 if (b43_shm_read32(dev
, B43_SHM_SHARED
, 2) != 0x55663344)
2988 b43warn(dev
->wl
, "Unaligned 32bit SHM read access is broken\n");
2989 b43_shm_write32(dev
, B43_SHM_SHARED
, 2, 0xAABBCCDD);
2990 if (b43_shm_read16(dev
, B43_SHM_SHARED
, 0) != 0x1122 ||
2991 b43_shm_read16(dev
, B43_SHM_SHARED
, 2) != 0xCCDD ||
2992 b43_shm_read16(dev
, B43_SHM_SHARED
, 4) != 0xAABB ||
2993 b43_shm_read16(dev
, B43_SHM_SHARED
, 6) != 0x7788)
2994 b43warn(dev
->wl
, "Unaligned 32bit SHM write access is broken\n");
2996 b43_shm_write32(dev
, B43_SHM_SHARED
, 0, backup0
);
2997 b43_shm_write32(dev
, B43_SHM_SHARED
, 4, backup4
);
2999 if ((dev
->dev
->id
.revision
>= 3) && (dev
->dev
->id
.revision
<= 10)) {
3000 /* The 32bit register shadows the two 16bit registers
3001 * with update sideeffects. Validate this. */
3002 b43_write16(dev
, B43_MMIO_TSF_CFP_START
, 0xAAAA);
3003 b43_write32(dev
, B43_MMIO_TSF_CFP_START
, 0xCCCCBBBB);
3004 if (b43_read16(dev
, B43_MMIO_TSF_CFP_START_LOW
) != 0xBBBB)
3006 if (b43_read16(dev
, B43_MMIO_TSF_CFP_START_HIGH
) != 0xCCCC)
3009 b43_write32(dev
, B43_MMIO_TSF_CFP_START
, 0);
3011 v
= b43_read32(dev
, B43_MMIO_MACCTL
);
3012 v
|= B43_MACCTL_GMODE
;
3013 if (v
!= (B43_MACCTL_GMODE
| B43_MACCTL_IHR_ENABLED
))
3018 b43err(dev
->wl
, "Failed to validate the chipaccess\n");
3022 static void b43_security_init(struct b43_wldev
*dev
)
3024 dev
->ktp
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_KTP
);
3025 /* KTP is a word address, but we address SHM bytewise.
3026 * So multiply by two.
3029 /* Number of RCMTA address slots */
3030 b43_write16(dev
, B43_MMIO_RCMTA_COUNT
, B43_NR_PAIRWISE_KEYS
);
3031 /* Clear the key memory. */
3032 b43_clear_keys(dev
);
3035 #ifdef CONFIG_B43_HWRNG
3036 static int b43_rng_read(struct hwrng
*rng
, u32
*data
)
3038 struct b43_wl
*wl
= (struct b43_wl
*)rng
->priv
;
3039 unsigned long flags
;
3041 /* Don't take wl->mutex here, as it could deadlock with
3042 * hwrng internal locking. It's not needed to take
3043 * wl->mutex here, anyway. */
3045 spin_lock_irqsave(&wl
->irq_lock
, flags
);
3046 *data
= b43_read16(wl
->current_dev
, B43_MMIO_RNG
);
3047 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
3049 return (sizeof(u16
));
3051 #endif /* CONFIG_B43_HWRNG */
3053 static void b43_rng_exit(struct b43_wl
*wl
)
3055 #ifdef CONFIG_B43_HWRNG
3056 if (wl
->rng_initialized
)
3057 hwrng_unregister(&wl
->rng
);
3058 #endif /* CONFIG_B43_HWRNG */
3061 static int b43_rng_init(struct b43_wl
*wl
)
3065 #ifdef CONFIG_B43_HWRNG
3066 snprintf(wl
->rng_name
, ARRAY_SIZE(wl
->rng_name
),
3067 "%s_%s", KBUILD_MODNAME
, wiphy_name(wl
->hw
->wiphy
));
3068 wl
->rng
.name
= wl
->rng_name
;
3069 wl
->rng
.data_read
= b43_rng_read
;
3070 wl
->rng
.priv
= (unsigned long)wl
;
3071 wl
->rng_initialized
= 1;
3072 err
= hwrng_register(&wl
->rng
);
3074 wl
->rng_initialized
= 0;
3075 b43err(wl
, "Failed to register the random "
3076 "number generator (%d)\n", err
);
3078 #endif /* CONFIG_B43_HWRNG */
3083 static int b43_op_tx(struct ieee80211_hw
*hw
,
3084 struct sk_buff
*skb
)
3086 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3087 struct b43_wldev
*dev
= wl
->current_dev
;
3088 unsigned long flags
;
3091 if (unlikely(skb
->len
< 2 + 2 + 6)) {
3092 /* Too short, this can't be a valid frame. */
3095 B43_WARN_ON(skb_shinfo(skb
)->nr_frags
);
3099 /* Transmissions on seperate queues can run concurrently. */
3100 read_lock_irqsave(&wl
->tx_lock
, flags
);
3103 if (likely(b43_status(dev
) >= B43_STAT_STARTED
)) {
3104 if (b43_using_pio_transfers(dev
))
3105 err
= b43_pio_tx(dev
, skb
);
3107 err
= b43_dma_tx(dev
, skb
);
3110 read_unlock_irqrestore(&wl
->tx_lock
, flags
);
3114 return NETDEV_TX_OK
;
3117 /* We can not transmit this packet. Drop it. */
3118 dev_kfree_skb_any(skb
);
3119 return NETDEV_TX_OK
;
3122 /* Locking: wl->irq_lock */
3123 static void b43_qos_params_upload(struct b43_wldev
*dev
,
3124 const struct ieee80211_tx_queue_params
*p
,
3127 u16 params
[B43_NR_QOSPARAMS
];
3131 bslots
= b43_read16(dev
, B43_MMIO_RNG
) & p
->cw_min
;
3133 memset(¶ms
, 0, sizeof(params
));
3135 params
[B43_QOSPARAM_TXOP
] = p
->txop
* 32;
3136 params
[B43_QOSPARAM_CWMIN
] = p
->cw_min
;
3137 params
[B43_QOSPARAM_CWMAX
] = p
->cw_max
;
3138 params
[B43_QOSPARAM_CWCUR
] = p
->cw_min
;
3139 params
[B43_QOSPARAM_AIFS
] = p
->aifs
;
3140 params
[B43_QOSPARAM_BSLOTS
] = bslots
;
3141 params
[B43_QOSPARAM_REGGAP
] = bslots
+ p
->aifs
;
3143 for (i
= 0; i
< ARRAY_SIZE(params
); i
++) {
3144 if (i
== B43_QOSPARAM_STATUS
) {
3145 tmp
= b43_shm_read16(dev
, B43_SHM_SHARED
,
3146 shm_offset
+ (i
* 2));
3147 /* Mark the parameters as updated. */
3149 b43_shm_write16(dev
, B43_SHM_SHARED
,
3150 shm_offset
+ (i
* 2),
3153 b43_shm_write16(dev
, B43_SHM_SHARED
,
3154 shm_offset
+ (i
* 2),
3160 /* Mapping of mac80211 queue numbers to b43 QoS SHM offsets. */
3161 static const u16 b43_qos_shm_offsets
[] = {
3162 /* [mac80211-queue-nr] = SHM_OFFSET, */
3163 [0] = B43_QOS_VOICE
,
3164 [1] = B43_QOS_VIDEO
,
3165 [2] = B43_QOS_BESTEFFORT
,
3166 [3] = B43_QOS_BACKGROUND
,
3169 /* Update all QOS parameters in hardware. */
3170 static void b43_qos_upload_all(struct b43_wldev
*dev
)
3172 struct b43_wl
*wl
= dev
->wl
;
3173 struct b43_qos_params
*params
;
3176 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets
) !=
3177 ARRAY_SIZE(wl
->qos_params
));
3179 b43_mac_suspend(dev
);
3180 for (i
= 0; i
< ARRAY_SIZE(wl
->qos_params
); i
++) {
3181 params
= &(wl
->qos_params
[i
]);
3182 b43_qos_params_upload(dev
, &(params
->p
),
3183 b43_qos_shm_offsets
[i
]);
3185 b43_mac_enable(dev
);
3188 static void b43_qos_clear(struct b43_wl
*wl
)
3190 struct b43_qos_params
*params
;
3193 /* Initialize QoS parameters to sane defaults. */
3195 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets
) !=
3196 ARRAY_SIZE(wl
->qos_params
));
3198 for (i
= 0; i
< ARRAY_SIZE(wl
->qos_params
); i
++) {
3199 params
= &(wl
->qos_params
[i
]);
3201 switch (b43_qos_shm_offsets
[i
]) {
3205 params
->p
.cw_min
= 0x0001;
3206 params
->p
.cw_max
= 0x0001;
3211 params
->p
.cw_min
= 0x0001;
3212 params
->p
.cw_max
= 0x0001;
3214 case B43_QOS_BESTEFFORT
:
3217 params
->p
.cw_min
= 0x0001;
3218 params
->p
.cw_max
= 0x03FF;
3220 case B43_QOS_BACKGROUND
:
3223 params
->p
.cw_min
= 0x0001;
3224 params
->p
.cw_max
= 0x03FF;
3232 /* Initialize the core's QOS capabilities */
3233 static void b43_qos_init(struct b43_wldev
*dev
)
3235 /* Upload the current QOS parameters. */
3236 b43_qos_upload_all(dev
);
3238 /* Enable QOS support. */
3239 b43_hf_write(dev
, b43_hf_read(dev
) | B43_HF_EDCF
);
3240 b43_write16(dev
, B43_MMIO_IFSCTL
,
3241 b43_read16(dev
, B43_MMIO_IFSCTL
)
3242 | B43_MMIO_IFSCTL_USE_EDCF
);
3245 static int b43_op_conf_tx(struct ieee80211_hw
*hw
, u16 _queue
,
3246 const struct ieee80211_tx_queue_params
*params
)
3248 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3249 struct b43_wldev
*dev
;
3250 unsigned int queue
= (unsigned int)_queue
;
3253 if (queue
>= ARRAY_SIZE(wl
->qos_params
)) {
3254 /* Queue not available or don't support setting
3255 * params on this queue. Return success to not
3256 * confuse mac80211. */
3259 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets
) !=
3260 ARRAY_SIZE(wl
->qos_params
));
3262 mutex_lock(&wl
->mutex
);
3263 dev
= wl
->current_dev
;
3264 if (unlikely(!dev
|| (b43_status(dev
) < B43_STAT_INITIALIZED
)))
3267 memcpy(&(wl
->qos_params
[queue
].p
), params
, sizeof(*params
));
3268 b43_mac_suspend(dev
);
3269 b43_qos_params_upload(dev
, &(wl
->qos_params
[queue
].p
),
3270 b43_qos_shm_offsets
[queue
]);
3271 b43_mac_enable(dev
);
3275 mutex_unlock(&wl
->mutex
);
3280 static int b43_op_get_tx_stats(struct ieee80211_hw
*hw
,
3281 struct ieee80211_tx_queue_stats
*stats
)
3283 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3284 struct b43_wldev
*dev
= wl
->current_dev
;
3285 unsigned long flags
;
3290 spin_lock_irqsave(&wl
->irq_lock
, flags
);
3291 if (likely(b43_status(dev
) >= B43_STAT_STARTED
)) {
3292 if (b43_using_pio_transfers(dev
))
3293 b43_pio_get_tx_stats(dev
, stats
);
3295 b43_dma_get_tx_stats(dev
, stats
);
3298 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
3303 static int b43_op_get_stats(struct ieee80211_hw
*hw
,
3304 struct ieee80211_low_level_stats
*stats
)
3306 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3307 unsigned long flags
;
3309 spin_lock_irqsave(&wl
->irq_lock
, flags
);
3310 memcpy(stats
, &wl
->ieee_stats
, sizeof(*stats
));
3311 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
3316 static u64
b43_op_get_tsf(struct ieee80211_hw
*hw
)
3318 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3319 struct b43_wldev
*dev
;
3322 mutex_lock(&wl
->mutex
);
3323 spin_lock_irq(&wl
->irq_lock
);
3324 dev
= wl
->current_dev
;
3326 if (dev
&& (b43_status(dev
) >= B43_STAT_INITIALIZED
))
3327 b43_tsf_read(dev
, &tsf
);
3331 spin_unlock_irq(&wl
->irq_lock
);
3332 mutex_unlock(&wl
->mutex
);
3337 static void b43_op_set_tsf(struct ieee80211_hw
*hw
, u64 tsf
)
3339 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3340 struct b43_wldev
*dev
;
3342 mutex_lock(&wl
->mutex
);
3343 spin_lock_irq(&wl
->irq_lock
);
3344 dev
= wl
->current_dev
;
3346 if (dev
&& (b43_status(dev
) >= B43_STAT_INITIALIZED
))
3347 b43_tsf_write(dev
, tsf
);
3349 spin_unlock_irq(&wl
->irq_lock
);
3350 mutex_unlock(&wl
->mutex
);
3353 static void b43_put_phy_into_reset(struct b43_wldev
*dev
)
3355 struct ssb_device
*sdev
= dev
->dev
;
3358 tmslow
= ssb_read32(sdev
, SSB_TMSLOW
);
3359 tmslow
&= ~B43_TMSLOW_GMODE
;
3360 tmslow
|= B43_TMSLOW_PHYRESET
;
3361 tmslow
|= SSB_TMSLOW_FGC
;
3362 ssb_write32(sdev
, SSB_TMSLOW
, tmslow
);
3365 tmslow
= ssb_read32(sdev
, SSB_TMSLOW
);
3366 tmslow
&= ~SSB_TMSLOW_FGC
;
3367 tmslow
|= B43_TMSLOW_PHYRESET
;
3368 ssb_write32(sdev
, SSB_TMSLOW
, tmslow
);
3372 static const char *band_to_string(enum ieee80211_band band
)
3375 case IEEE80211_BAND_5GHZ
:
3377 case IEEE80211_BAND_2GHZ
:
3386 /* Expects wl->mutex locked */
3387 static int b43_switch_band(struct b43_wl
*wl
, struct ieee80211_channel
*chan
)
3389 struct b43_wldev
*up_dev
= NULL
;
3390 struct b43_wldev
*down_dev
;
3391 struct b43_wldev
*d
;
3393 bool uninitialized_var(gmode
);
3396 /* Find a device and PHY which supports the band. */
3397 list_for_each_entry(d
, &wl
->devlist
, list
) {
3398 switch (chan
->band
) {
3399 case IEEE80211_BAND_5GHZ
:
3400 if (d
->phy
.supports_5ghz
) {
3405 case IEEE80211_BAND_2GHZ
:
3406 if (d
->phy
.supports_2ghz
) {
3419 b43err(wl
, "Could not find a device for %s-GHz band operation\n",
3420 band_to_string(chan
->band
));
3423 if ((up_dev
== wl
->current_dev
) &&
3424 (!!wl
->current_dev
->phy
.gmode
== !!gmode
)) {
3425 /* This device is already running. */
3428 b43dbg(wl
, "Switching to %s-GHz band\n",
3429 band_to_string(chan
->band
));
3430 down_dev
= wl
->current_dev
;
3432 prev_status
= b43_status(down_dev
);
3433 /* Shutdown the currently running core. */
3434 if (prev_status
>= B43_STAT_STARTED
)
3435 b43_wireless_core_stop(down_dev
);
3436 if (prev_status
>= B43_STAT_INITIALIZED
)
3437 b43_wireless_core_exit(down_dev
);
3439 if (down_dev
!= up_dev
) {
3440 /* We switch to a different core, so we put PHY into
3441 * RESET on the old core. */
3442 b43_put_phy_into_reset(down_dev
);
3445 /* Now start the new core. */
3446 up_dev
->phy
.gmode
= gmode
;
3447 if (prev_status
>= B43_STAT_INITIALIZED
) {
3448 err
= b43_wireless_core_init(up_dev
);
3450 b43err(wl
, "Fatal: Could not initialize device for "
3451 "selected %s-GHz band\n",
3452 band_to_string(chan
->band
));
3456 if (prev_status
>= B43_STAT_STARTED
) {
3457 err
= b43_wireless_core_start(up_dev
);
3459 b43err(wl
, "Fatal: Coult not start device for "
3460 "selected %s-GHz band\n",
3461 band_to_string(chan
->band
));
3462 b43_wireless_core_exit(up_dev
);
3466 B43_WARN_ON(b43_status(up_dev
) != prev_status
);
3468 wl
->current_dev
= up_dev
;
3472 /* Whoops, failed to init the new core. No core is operating now. */
3473 wl
->current_dev
= NULL
;
3477 /* Write the short and long frame retry limit values. */
3478 static void b43_set_retry_limits(struct b43_wldev
*dev
,
3479 unsigned int short_retry
,
3480 unsigned int long_retry
)
3482 /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
3483 * the chip-internal counter. */
3484 short_retry
= min(short_retry
, (unsigned int)0xF);
3485 long_retry
= min(long_retry
, (unsigned int)0xF);
3487 b43_shm_write16(dev
, B43_SHM_SCRATCH
, B43_SHM_SC_SRLIMIT
,
3489 b43_shm_write16(dev
, B43_SHM_SCRATCH
, B43_SHM_SC_LRLIMIT
,
3493 static int b43_op_config(struct ieee80211_hw
*hw
, u32 changed
)
3495 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3496 struct b43_wldev
*dev
;
3497 struct b43_phy
*phy
;
3498 struct ieee80211_conf
*conf
= &hw
->conf
;
3499 unsigned long flags
;
3503 mutex_lock(&wl
->mutex
);
3505 /* Switch the band (if necessary). This might change the active core. */
3506 err
= b43_switch_band(wl
, conf
->channel
);
3508 goto out_unlock_mutex
;
3509 dev
= wl
->current_dev
;
3512 b43_mac_suspend(dev
);
3514 if (changed
& IEEE80211_CONF_CHANGE_RETRY_LIMITS
)
3515 b43_set_retry_limits(dev
, conf
->short_frame_max_tx_count
,
3516 conf
->long_frame_max_tx_count
);
3517 changed
&= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS
;
3519 goto out_mac_enable
;
3521 /* Switch to the requested channel.
3522 * The firmware takes care of races with the TX handler. */
3523 if (conf
->channel
->hw_value
!= phy
->channel
)
3524 b43_switch_channel(dev
, conf
->channel
->hw_value
);
3526 dev
->wl
->radiotap_enabled
= !!(conf
->flags
& IEEE80211_CONF_RADIOTAP
);
3528 /* Adjust the desired TX power level. */
3529 if (conf
->power_level
!= 0) {
3530 spin_lock_irqsave(&wl
->irq_lock
, flags
);
3531 if (conf
->power_level
!= phy
->desired_txpower
) {
3532 phy
->desired_txpower
= conf
->power_level
;
3533 b43_phy_txpower_check(dev
, B43_TXPWR_IGNORE_TIME
|
3534 B43_TXPWR_IGNORE_TSSI
);
3536 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
3539 /* Antennas for RX and management frame TX. */
3540 antenna
= B43_ANTENNA_DEFAULT
;
3541 b43_mgmtframe_txantenna(dev
, antenna
);
3542 antenna
= B43_ANTENNA_DEFAULT
;
3543 if (phy
->ops
->set_rx_antenna
)
3544 phy
->ops
->set_rx_antenna(dev
, antenna
);
3546 if (wl
->radio_enabled
!= phy
->radio_on
) {
3547 if (wl
->radio_enabled
) {
3548 b43_software_rfkill(dev
, false);
3549 b43info(dev
->wl
, "Radio turned on by software\n");
3550 if (!dev
->radio_hw_enable
) {
3551 b43info(dev
->wl
, "The hardware RF-kill button "
3552 "still turns the radio physically off. "
3553 "Press the button to turn it on.\n");
3556 b43_software_rfkill(dev
, true);
3557 b43info(dev
->wl
, "Radio turned off by software\n");
3562 b43_mac_enable(dev
);
3564 mutex_unlock(&wl
->mutex
);
3569 static void b43_update_basic_rates(struct b43_wldev
*dev
, u32 brates
)
3571 struct ieee80211_supported_band
*sband
=
3572 dev
->wl
->hw
->wiphy
->bands
[b43_current_band(dev
->wl
)];
3573 struct ieee80211_rate
*rate
;
3575 u16 basic
, direct
, offset
, basic_offset
, rateptr
;
3577 for (i
= 0; i
< sband
->n_bitrates
; i
++) {
3578 rate
= &sband
->bitrates
[i
];
3580 if (b43_is_cck_rate(rate
->hw_value
)) {
3581 direct
= B43_SHM_SH_CCKDIRECT
;
3582 basic
= B43_SHM_SH_CCKBASIC
;
3583 offset
= b43_plcp_get_ratecode_cck(rate
->hw_value
);
3586 direct
= B43_SHM_SH_OFDMDIRECT
;
3587 basic
= B43_SHM_SH_OFDMBASIC
;
3588 offset
= b43_plcp_get_ratecode_ofdm(rate
->hw_value
);
3592 rate
= ieee80211_get_response_rate(sband
, brates
, rate
->bitrate
);
3594 if (b43_is_cck_rate(rate
->hw_value
)) {
3595 basic_offset
= b43_plcp_get_ratecode_cck(rate
->hw_value
);
3596 basic_offset
&= 0xF;
3598 basic_offset
= b43_plcp_get_ratecode_ofdm(rate
->hw_value
);
3599 basic_offset
&= 0xF;
3603 * Get the pointer that we need to point to
3604 * from the direct map
3606 rateptr
= b43_shm_read16(dev
, B43_SHM_SHARED
,
3607 direct
+ 2 * basic_offset
);
3608 /* and write it to the basic map */
3609 b43_shm_write16(dev
, B43_SHM_SHARED
, basic
+ 2 * offset
,
3614 static void b43_op_bss_info_changed(struct ieee80211_hw
*hw
,
3615 struct ieee80211_vif
*vif
,
3616 struct ieee80211_bss_conf
*conf
,
3619 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3620 struct b43_wldev
*dev
;
3621 unsigned long flags
;
3623 mutex_lock(&wl
->mutex
);
3625 dev
= wl
->current_dev
;
3626 if (!dev
|| b43_status(dev
) < B43_STAT_STARTED
)
3627 goto out_unlock_mutex
;
3629 B43_WARN_ON(wl
->vif
!= vif
);
3631 spin_lock_irqsave(&wl
->irq_lock
, flags
);
3632 if (changed
& BSS_CHANGED_BSSID
) {
3634 memcpy(wl
->bssid
, conf
->bssid
, ETH_ALEN
);
3636 memset(wl
->bssid
, 0, ETH_ALEN
);
3639 if (b43_status(dev
) >= B43_STAT_INITIALIZED
) {
3640 if (changed
& BSS_CHANGED_BEACON
&&
3641 (b43_is_mode(wl
, NL80211_IFTYPE_AP
) ||
3642 b43_is_mode(wl
, NL80211_IFTYPE_MESH_POINT
) ||
3643 b43_is_mode(wl
, NL80211_IFTYPE_ADHOC
)))
3644 b43_update_templates(wl
);
3646 if (changed
& BSS_CHANGED_BSSID
)
3647 b43_write_mac_bssid_templates(dev
);
3649 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
3651 b43_mac_suspend(dev
);
3653 /* Update templates for AP/mesh mode. */
3654 if (changed
& BSS_CHANGED_BEACON_INT
&&
3655 (b43_is_mode(wl
, NL80211_IFTYPE_AP
) ||
3656 b43_is_mode(wl
, NL80211_IFTYPE_MESH_POINT
) ||
3657 b43_is_mode(wl
, NL80211_IFTYPE_ADHOC
)))
3658 b43_set_beacon_int(dev
, conf
->beacon_int
);
3660 if (changed
& BSS_CHANGED_BASIC_RATES
)
3661 b43_update_basic_rates(dev
, conf
->basic_rates
);
3663 if (changed
& BSS_CHANGED_ERP_SLOT
) {
3664 if (conf
->use_short_slot
)
3665 b43_short_slot_timing_enable(dev
);
3667 b43_short_slot_timing_disable(dev
);
3670 b43_mac_enable(dev
);
3672 mutex_unlock(&wl
->mutex
);
3675 static int b43_op_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
3676 struct ieee80211_vif
*vif
, struct ieee80211_sta
*sta
,
3677 struct ieee80211_key_conf
*key
)
3679 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3680 struct b43_wldev
*dev
;
3684 static const u8 bcast_addr
[ETH_ALEN
] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
3686 if (modparam_nohwcrypt
)
3687 return -ENOSPC
; /* User disabled HW-crypto */
3689 mutex_lock(&wl
->mutex
);
3690 spin_lock_irq(&wl
->irq_lock
);
3691 write_lock(&wl
->tx_lock
);
3692 /* Why do we need all this locking here?
3693 * mutex -> Every config operation must take it.
3694 * irq_lock -> We modify the dev->key array, which is accessed
3695 * in the IRQ handlers.
3696 * tx_lock -> We modify the dev->key array, which is accessed
3697 * in the TX handler.
3700 dev
= wl
->current_dev
;
3702 if (!dev
|| b43_status(dev
) < B43_STAT_INITIALIZED
)
3705 if (dev
->fw
.pcm_request_failed
|| !dev
->hwcrypto_enabled
) {
3706 /* We don't have firmware for the crypto engine.
3707 * Must use software-crypto. */
3715 if (key
->keylen
== WLAN_KEY_LEN_WEP40
)
3716 algorithm
= B43_SEC_ALGO_WEP40
;
3718 algorithm
= B43_SEC_ALGO_WEP104
;
3721 algorithm
= B43_SEC_ALGO_TKIP
;
3724 algorithm
= B43_SEC_ALGO_AES
;
3730 index
= (u8
) (key
->keyidx
);
3736 if (algorithm
== B43_SEC_ALGO_TKIP
&&
3737 (!(key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
) ||
3738 !modparam_hwtkip
)) {
3739 /* We support only pairwise key */
3744 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
) {
3745 if (WARN_ON(!sta
)) {
3749 /* Pairwise key with an assigned MAC address. */
3750 err
= b43_key_write(dev
, -1, algorithm
,
3751 key
->key
, key
->keylen
,
3755 err
= b43_key_write(dev
, index
, algorithm
,
3756 key
->key
, key
->keylen
, NULL
, key
);
3761 if (algorithm
== B43_SEC_ALGO_WEP40
||
3762 algorithm
== B43_SEC_ALGO_WEP104
) {
3763 b43_hf_write(dev
, b43_hf_read(dev
) | B43_HF_USEDEFKEYS
);
3766 b43_hf_read(dev
) & ~B43_HF_USEDEFKEYS
);
3768 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
3769 if (algorithm
== B43_SEC_ALGO_TKIP
)
3770 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
3773 err
= b43_key_clear(dev
, key
->hw_key_idx
);
3784 b43dbg(wl
, "%s hardware based encryption for keyidx: %d, "
3786 cmd
== SET_KEY
? "Using" : "Disabling", key
->keyidx
,
3787 sta
? sta
->addr
: bcast_addr
);
3788 b43_dump_keymemory(dev
);
3790 write_unlock(&wl
->tx_lock
);
3791 spin_unlock_irq(&wl
->irq_lock
);
3792 mutex_unlock(&wl
->mutex
);
3797 static void b43_op_configure_filter(struct ieee80211_hw
*hw
,
3798 unsigned int changed
, unsigned int *fflags
,
3801 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3802 struct b43_wldev
*dev
= wl
->current_dev
;
3803 unsigned long flags
;
3810 spin_lock_irqsave(&wl
->irq_lock
, flags
);
3811 *fflags
&= FIF_PROMISC_IN_BSS
|
3817 FIF_BCN_PRBRESP_PROMISC
;
3819 changed
&= FIF_PROMISC_IN_BSS
|
3825 FIF_BCN_PRBRESP_PROMISC
;
3827 wl
->filter_flags
= *fflags
;
3829 if (changed
&& b43_status(dev
) >= B43_STAT_INITIALIZED
)
3830 b43_adjust_opmode(dev
);
3831 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
3834 /* Locking: wl->mutex */
3835 static void b43_wireless_core_stop(struct b43_wldev
*dev
)
3837 struct b43_wl
*wl
= dev
->wl
;
3838 unsigned long flags
;
3840 if (b43_status(dev
) < B43_STAT_STARTED
)
3843 /* Disable and sync interrupts. We must do this before than
3844 * setting the status to INITIALIZED, as the interrupt handler
3845 * won't care about IRQs then. */
3846 spin_lock_irqsave(&wl
->irq_lock
, flags
);
3847 b43_write32(dev
, B43_MMIO_GEN_IRQ_MASK
, 0);
3848 b43_read32(dev
, B43_MMIO_GEN_IRQ_MASK
); /* flush */
3849 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
3850 b43_synchronize_irq(dev
);
3852 write_lock_irqsave(&wl
->tx_lock
, flags
);
3853 b43_set_status(dev
, B43_STAT_INITIALIZED
);
3854 write_unlock_irqrestore(&wl
->tx_lock
, flags
);
3857 mutex_unlock(&wl
->mutex
);
3858 /* Must unlock as it would otherwise deadlock. No races here.
3859 * Cancel the possibly running self-rearming periodic work. */
3860 cancel_delayed_work_sync(&dev
->periodic_work
);
3861 mutex_lock(&wl
->mutex
);
3863 b43_mac_suspend(dev
);
3864 free_irq(dev
->dev
->irq
, dev
);
3865 b43dbg(wl
, "Wireless interface stopped\n");
3868 /* Locking: wl->mutex */
3869 static int b43_wireless_core_start(struct b43_wldev
*dev
)
3873 B43_WARN_ON(b43_status(dev
) != B43_STAT_INITIALIZED
);
3875 drain_txstatus_queue(dev
);
3876 err
= request_irq(dev
->dev
->irq
, b43_interrupt_handler
,
3877 IRQF_SHARED
, KBUILD_MODNAME
, dev
);
3879 b43err(dev
->wl
, "Cannot request IRQ-%d\n", dev
->dev
->irq
);
3883 /* We are ready to run. */
3884 b43_set_status(dev
, B43_STAT_STARTED
);
3886 /* Start data flow (TX/RX). */
3887 b43_mac_enable(dev
);
3888 b43_write32(dev
, B43_MMIO_GEN_IRQ_MASK
, dev
->irq_mask
);
3890 /* Start maintainance work */
3891 b43_periodic_tasks_setup(dev
);
3893 b43dbg(dev
->wl
, "Wireless interface started\n");
3898 /* Get PHY and RADIO versioning numbers */
3899 static int b43_phy_versioning(struct b43_wldev
*dev
)
3901 struct b43_phy
*phy
= &dev
->phy
;
3909 int unsupported
= 0;
3911 /* Get PHY versioning */
3912 tmp
= b43_read16(dev
, B43_MMIO_PHY_VER
);
3913 analog_type
= (tmp
& B43_PHYVER_ANALOG
) >> B43_PHYVER_ANALOG_SHIFT
;
3914 phy_type
= (tmp
& B43_PHYVER_TYPE
) >> B43_PHYVER_TYPE_SHIFT
;
3915 phy_rev
= (tmp
& B43_PHYVER_VERSION
);
3922 if (phy_rev
!= 2 && phy_rev
!= 4 && phy_rev
!= 6
3930 #ifdef CONFIG_B43_NPHY
3936 #ifdef CONFIG_B43_PHY_LP
3937 case B43_PHYTYPE_LP
:
3946 b43err(dev
->wl
, "FOUND UNSUPPORTED PHY "
3947 "(Analog %u, Type %u, Revision %u)\n",
3948 analog_type
, phy_type
, phy_rev
);
3951 b43dbg(dev
->wl
, "Found PHY: Analog %u, Type %u, Revision %u\n",
3952 analog_type
, phy_type
, phy_rev
);
3954 /* Get RADIO versioning */
3955 if (dev
->dev
->bus
->chip_id
== 0x4317) {
3956 if (dev
->dev
->bus
->chip_rev
== 0)
3958 else if (dev
->dev
->bus
->chip_rev
== 1)
3963 b43_write16(dev
, B43_MMIO_RADIO_CONTROL
, B43_RADIOCTL_ID
);
3964 tmp
= b43_read16(dev
, B43_MMIO_RADIO_DATA_LOW
);
3965 b43_write16(dev
, B43_MMIO_RADIO_CONTROL
, B43_RADIOCTL_ID
);
3966 tmp
|= (u32
)b43_read16(dev
, B43_MMIO_RADIO_DATA_HIGH
) << 16;
3968 radio_manuf
= (tmp
& 0x00000FFF);
3969 radio_ver
= (tmp
& 0x0FFFF000) >> 12;
3970 radio_rev
= (tmp
& 0xF0000000) >> 28;
3971 if (radio_manuf
!= 0x17F /* Broadcom */)
3975 if (radio_ver
!= 0x2060)
3979 if (radio_manuf
!= 0x17F)
3983 if ((radio_ver
& 0xFFF0) != 0x2050)
3987 if (radio_ver
!= 0x2050)
3991 if (radio_ver
!= 0x2055 && radio_ver
!= 0x2056)
3994 case B43_PHYTYPE_LP
:
3995 if (radio_ver
!= 0x2062 && radio_ver
!= 0x2063)
4002 b43err(dev
->wl
, "FOUND UNSUPPORTED RADIO "
4003 "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
4004 radio_manuf
, radio_ver
, radio_rev
);
4007 b43dbg(dev
->wl
, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n",
4008 radio_manuf
, radio_ver
, radio_rev
);
4010 phy
->radio_manuf
= radio_manuf
;
4011 phy
->radio_ver
= radio_ver
;
4012 phy
->radio_rev
= radio_rev
;
4014 phy
->analog
= analog_type
;
4015 phy
->type
= phy_type
;
4021 static void setup_struct_phy_for_init(struct b43_wldev
*dev
,
4022 struct b43_phy
*phy
)
4024 phy
->hardware_power_control
= !!modparam_hwpctl
;
4025 phy
->next_txpwr_check_time
= jiffies
;
4026 /* PHY TX errors counter. */
4027 atomic_set(&phy
->txerr_cnt
, B43_PHY_TX_BADNESS_LIMIT
);
4030 phy
->phy_locked
= 0;
4031 phy
->radio_locked
= 0;
4035 static void setup_struct_wldev_for_init(struct b43_wldev
*dev
)
4039 /* Assume the radio is enabled. If it's not enabled, the state will
4040 * immediately get fixed on the first periodic work run. */
4041 dev
->radio_hw_enable
= 1;
4044 memset(&dev
->stats
, 0, sizeof(dev
->stats
));
4046 setup_struct_phy_for_init(dev
, &dev
->phy
);
4048 /* IRQ related flags */
4049 dev
->irq_reason
= 0;
4050 memset(dev
->dma_reason
, 0, sizeof(dev
->dma_reason
));
4051 dev
->irq_mask
= B43_IRQ_MASKTEMPLATE
;
4052 if (b43_modparam_verbose
< B43_VERBOSITY_DEBUG
)
4053 dev
->irq_mask
&= ~B43_IRQ_PHY_TXERR
;
4055 dev
->mac_suspended
= 1;
4057 /* Noise calculation context */
4058 memset(&dev
->noisecalc
, 0, sizeof(dev
->noisecalc
));
4061 static void b43_bluetooth_coext_enable(struct b43_wldev
*dev
)
4063 struct ssb_sprom
*sprom
= &dev
->dev
->bus
->sprom
;
4066 if (!modparam_btcoex
)
4068 if (!(sprom
->boardflags_lo
& B43_BFL_BTCOEXIST
))
4070 if (dev
->phy
.type
!= B43_PHYTYPE_B
&& !dev
->phy
.gmode
)
4073 hf
= b43_hf_read(dev
);
4074 if (sprom
->boardflags_lo
& B43_BFL_BTCMOD
)
4075 hf
|= B43_HF_BTCOEXALT
;
4077 hf
|= B43_HF_BTCOEX
;
4078 b43_hf_write(dev
, hf
);
4081 static void b43_bluetooth_coext_disable(struct b43_wldev
*dev
)
4083 if (!modparam_btcoex
)
4088 static void b43_imcfglo_timeouts_workaround(struct b43_wldev
*dev
)
4090 #ifdef CONFIG_SSB_DRIVER_PCICORE
4091 struct ssb_bus
*bus
= dev
->dev
->bus
;
4094 if (bus
->pcicore
.dev
&&
4095 bus
->pcicore
.dev
->id
.coreid
== SSB_DEV_PCI
&&
4096 bus
->pcicore
.dev
->id
.revision
<= 5) {
4097 /* IMCFGLO timeouts workaround. */
4098 tmp
= ssb_read32(dev
->dev
, SSB_IMCFGLO
);
4099 tmp
&= ~SSB_IMCFGLO_REQTO
;
4100 tmp
&= ~SSB_IMCFGLO_SERTO
;
4101 switch (bus
->bustype
) {
4102 case SSB_BUSTYPE_PCI
:
4103 case SSB_BUSTYPE_PCMCIA
:
4106 case SSB_BUSTYPE_SSB
:
4110 ssb_write32(dev
->dev
, SSB_IMCFGLO
, tmp
);
4112 #endif /* CONFIG_SSB_DRIVER_PCICORE */
4115 static void b43_set_synth_pu_delay(struct b43_wldev
*dev
, bool idle
)
4119 /* The time value is in microseconds. */
4120 if (dev
->phy
.type
== B43_PHYTYPE_A
)
4124 if (b43_is_mode(dev
->wl
, NL80211_IFTYPE_ADHOC
) || idle
)
4126 if ((dev
->phy
.radio_ver
== 0x2050) && (dev
->phy
.radio_rev
== 8))
4127 pu_delay
= max(pu_delay
, (u16
)2400);
4129 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_SPUWKUP
, pu_delay
);
4132 /* Set the TSF CFP pre-TargetBeaconTransmissionTime. */
4133 static void b43_set_pretbtt(struct b43_wldev
*dev
)
4137 /* The time value is in microseconds. */
4138 if (b43_is_mode(dev
->wl
, NL80211_IFTYPE_ADHOC
)) {
4141 if (dev
->phy
.type
== B43_PHYTYPE_A
)
4146 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_PRETBTT
, pretbtt
);
4147 b43_write16(dev
, B43_MMIO_TSF_CFP_PRETBTT
, pretbtt
);
4150 /* Shutdown a wireless core */
4151 /* Locking: wl->mutex */
4152 static void b43_wireless_core_exit(struct b43_wldev
*dev
)
4156 B43_WARN_ON(b43_status(dev
) > B43_STAT_INITIALIZED
);
4157 if (b43_status(dev
) != B43_STAT_INITIALIZED
)
4159 b43_set_status(dev
, B43_STAT_UNINIT
);
4161 /* Stop the microcode PSM. */
4162 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
4163 macctl
&= ~B43_MACCTL_PSM_RUN
;
4164 macctl
|= B43_MACCTL_PSM_JMP0
;
4165 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
4167 if (!dev
->suspend_in_progress
) {
4169 b43_rng_exit(dev
->wl
);
4174 dev
->phy
.ops
->switch_analog(dev
, 0);
4175 if (dev
->wl
->current_beacon
) {
4176 dev_kfree_skb_any(dev
->wl
->current_beacon
);
4177 dev
->wl
->current_beacon
= NULL
;
4180 ssb_device_disable(dev
->dev
, 0);
4181 ssb_bus_may_powerdown(dev
->dev
->bus
);
4184 /* Initialize a wireless core */
4185 static int b43_wireless_core_init(struct b43_wldev
*dev
)
4187 struct b43_wl
*wl
= dev
->wl
;
4188 struct ssb_bus
*bus
= dev
->dev
->bus
;
4189 struct ssb_sprom
*sprom
= &bus
->sprom
;
4190 struct b43_phy
*phy
= &dev
->phy
;
4195 B43_WARN_ON(b43_status(dev
) != B43_STAT_UNINIT
);
4197 err
= ssb_bus_powerup(bus
, 0);
4200 if (!ssb_device_is_enabled(dev
->dev
)) {
4201 tmp
= phy
->gmode
? B43_TMSLOW_GMODE
: 0;
4202 b43_wireless_core_reset(dev
, tmp
);
4205 /* Reset all data structures. */
4206 setup_struct_wldev_for_init(dev
);
4207 phy
->ops
->prepare_structs(dev
);
4209 /* Enable IRQ routing to this device. */
4210 ssb_pcicore_dev_irqvecs_enable(&bus
->pcicore
, dev
->dev
);
4212 b43_imcfglo_timeouts_workaround(dev
);
4213 b43_bluetooth_coext_disable(dev
);
4214 if (phy
->ops
->prepare_hardware
) {
4215 err
= phy
->ops
->prepare_hardware(dev
);
4219 err
= b43_chip_init(dev
);
4222 b43_shm_write16(dev
, B43_SHM_SHARED
,
4223 B43_SHM_SH_WLCOREREV
, dev
->dev
->id
.revision
);
4224 hf
= b43_hf_read(dev
);
4225 if (phy
->type
== B43_PHYTYPE_G
) {
4229 if (sprom
->boardflags_lo
& B43_BFL_PACTRL
)
4230 hf
|= B43_HF_OFDMPABOOST
;
4232 if (phy
->radio_ver
== 0x2050) {
4233 if (phy
->radio_rev
== 6)
4234 hf
|= B43_HF_4318TSSI
;
4235 if (phy
->radio_rev
< 6)
4236 hf
|= B43_HF_VCORECALC
;
4238 if (sprom
->boardflags_lo
& B43_BFL_XTAL_NOSLOW
)
4239 hf
|= B43_HF_DSCRQ
; /* Disable slowclock requests from ucode. */
4240 #ifdef CONFIG_SSB_DRIVER_PCICORE
4241 if ((bus
->bustype
== SSB_BUSTYPE_PCI
) &&
4242 (bus
->pcicore
.dev
->id
.revision
<= 10))
4243 hf
|= B43_HF_PCISCW
; /* PCI slow clock workaround. */
4245 hf
&= ~B43_HF_SKCFPUP
;
4246 b43_hf_write(dev
, hf
);
4248 b43_set_retry_limits(dev
, B43_DEFAULT_SHORT_RETRY_LIMIT
,
4249 B43_DEFAULT_LONG_RETRY_LIMIT
);
4250 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_SFFBLIM
, 3);
4251 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_LFFBLIM
, 2);
4253 /* Disable sending probe responses from firmware.
4254 * Setting the MaxTime to one usec will always trigger
4255 * a timeout, so we never send any probe resp.
4256 * A timeout of zero is infinite. */
4257 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_PRMAXTIME
, 1);
4259 b43_rate_memory_init(dev
);
4260 b43_set_phytxctl_defaults(dev
);
4262 /* Minimum Contention Window */
4263 if (phy
->type
== B43_PHYTYPE_B
) {
4264 b43_shm_write16(dev
, B43_SHM_SCRATCH
, B43_SHM_SC_MINCONT
, 0x1F);
4266 b43_shm_write16(dev
, B43_SHM_SCRATCH
, B43_SHM_SC_MINCONT
, 0xF);
4268 /* Maximum Contention Window */
4269 b43_shm_write16(dev
, B43_SHM_SCRATCH
, B43_SHM_SC_MAXCONT
, 0x3FF);
4271 if ((dev
->dev
->bus
->bustype
== SSB_BUSTYPE_PCMCIA
) || B43_FORCE_PIO
) {
4272 dev
->__using_pio_transfers
= 1;
4273 err
= b43_pio_init(dev
);
4275 dev
->__using_pio_transfers
= 0;
4276 err
= b43_dma_init(dev
);
4281 b43_set_synth_pu_delay(dev
, 1);
4282 b43_bluetooth_coext_enable(dev
);
4284 ssb_bus_powerup(bus
, !(sprom
->boardflags_lo
& B43_BFL_XTAL_NOSLOW
));
4285 b43_upload_card_macaddress(dev
);
4286 b43_security_init(dev
);
4287 if (!dev
->suspend_in_progress
)
4290 b43_set_status(dev
, B43_STAT_INITIALIZED
);
4292 if (!dev
->suspend_in_progress
)
4300 ssb_bus_may_powerdown(bus
);
4301 B43_WARN_ON(b43_status(dev
) != B43_STAT_UNINIT
);
4305 static int b43_op_add_interface(struct ieee80211_hw
*hw
,
4306 struct ieee80211_if_init_conf
*conf
)
4308 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4309 struct b43_wldev
*dev
;
4310 unsigned long flags
;
4311 int err
= -EOPNOTSUPP
;
4313 /* TODO: allow WDS/AP devices to coexist */
4315 if (conf
->type
!= NL80211_IFTYPE_AP
&&
4316 conf
->type
!= NL80211_IFTYPE_MESH_POINT
&&
4317 conf
->type
!= NL80211_IFTYPE_STATION
&&
4318 conf
->type
!= NL80211_IFTYPE_WDS
&&
4319 conf
->type
!= NL80211_IFTYPE_ADHOC
)
4322 mutex_lock(&wl
->mutex
);
4324 goto out_mutex_unlock
;
4326 b43dbg(wl
, "Adding Interface type %d\n", conf
->type
);
4328 dev
= wl
->current_dev
;
4330 wl
->vif
= conf
->vif
;
4331 wl
->if_type
= conf
->type
;
4332 memcpy(wl
->mac_addr
, conf
->mac_addr
, ETH_ALEN
);
4334 spin_lock_irqsave(&wl
->irq_lock
, flags
);
4335 b43_adjust_opmode(dev
);
4336 b43_set_pretbtt(dev
);
4337 b43_set_synth_pu_delay(dev
, 0);
4338 b43_upload_card_macaddress(dev
);
4339 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
4343 mutex_unlock(&wl
->mutex
);
4348 static void b43_op_remove_interface(struct ieee80211_hw
*hw
,
4349 struct ieee80211_if_init_conf
*conf
)
4351 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4352 struct b43_wldev
*dev
= wl
->current_dev
;
4353 unsigned long flags
;
4355 b43dbg(wl
, "Removing Interface type %d\n", conf
->type
);
4357 mutex_lock(&wl
->mutex
);
4359 B43_WARN_ON(!wl
->operating
);
4360 B43_WARN_ON(wl
->vif
!= conf
->vif
);
4365 spin_lock_irqsave(&wl
->irq_lock
, flags
);
4366 b43_adjust_opmode(dev
);
4367 memset(wl
->mac_addr
, 0, ETH_ALEN
);
4368 b43_upload_card_macaddress(dev
);
4369 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
4371 mutex_unlock(&wl
->mutex
);
4374 static int b43_op_start(struct ieee80211_hw
*hw
)
4376 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4377 struct b43_wldev
*dev
= wl
->current_dev
;
4381 /* Kill all old instance specific information to make sure
4382 * the card won't use it in the short timeframe between start
4383 * and mac80211 reconfiguring it. */
4384 memset(wl
->bssid
, 0, ETH_ALEN
);
4385 memset(wl
->mac_addr
, 0, ETH_ALEN
);
4386 wl
->filter_flags
= 0;
4387 wl
->radiotap_enabled
= 0;
4389 wl
->beacon0_uploaded
= 0;
4390 wl
->beacon1_uploaded
= 0;
4391 wl
->beacon_templates_virgin
= 1;
4392 wl
->radio_enabled
= 1;
4394 mutex_lock(&wl
->mutex
);
4396 if (b43_status(dev
) < B43_STAT_INITIALIZED
) {
4397 err
= b43_wireless_core_init(dev
);
4399 goto out_mutex_unlock
;
4403 if (b43_status(dev
) < B43_STAT_STARTED
) {
4404 err
= b43_wireless_core_start(dev
);
4407 b43_wireless_core_exit(dev
);
4408 goto out_mutex_unlock
;
4412 /* XXX: only do if device doesn't support rfkill irq */
4413 wiphy_rfkill_start_polling(hw
->wiphy
);
4416 mutex_unlock(&wl
->mutex
);
4421 static void b43_op_stop(struct ieee80211_hw
*hw
)
4423 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4424 struct b43_wldev
*dev
= wl
->current_dev
;
4426 cancel_work_sync(&(wl
->beacon_update_trigger
));
4428 mutex_lock(&wl
->mutex
);
4429 if (b43_status(dev
) >= B43_STAT_STARTED
)
4430 b43_wireless_core_stop(dev
);
4431 b43_wireless_core_exit(dev
);
4432 wl
->radio_enabled
= 0;
4433 mutex_unlock(&wl
->mutex
);
4435 cancel_work_sync(&(wl
->txpower_adjust_work
));
4438 static int b43_op_beacon_set_tim(struct ieee80211_hw
*hw
,
4439 struct ieee80211_sta
*sta
, bool set
)
4441 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4442 unsigned long flags
;
4444 spin_lock_irqsave(&wl
->irq_lock
, flags
);
4445 b43_update_templates(wl
);
4446 spin_unlock_irqrestore(&wl
->irq_lock
, flags
);
4451 static void b43_op_sta_notify(struct ieee80211_hw
*hw
,
4452 struct ieee80211_vif
*vif
,
4453 enum sta_notify_cmd notify_cmd
,
4454 struct ieee80211_sta
*sta
)
4456 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4458 B43_WARN_ON(!vif
|| wl
->vif
!= vif
);
4461 static void b43_op_sw_scan_start_notifier(struct ieee80211_hw
*hw
)
4463 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4464 struct b43_wldev
*dev
;
4466 mutex_lock(&wl
->mutex
);
4467 dev
= wl
->current_dev
;
4468 if (dev
&& (b43_status(dev
) >= B43_STAT_INITIALIZED
)) {
4469 /* Disable CFP update during scan on other channels. */
4470 b43_hf_write(dev
, b43_hf_read(dev
) | B43_HF_SKCFPUP
);
4472 mutex_unlock(&wl
->mutex
);
4475 static void b43_op_sw_scan_complete_notifier(struct ieee80211_hw
*hw
)
4477 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4478 struct b43_wldev
*dev
;
4480 mutex_lock(&wl
->mutex
);
4481 dev
= wl
->current_dev
;
4482 if (dev
&& (b43_status(dev
) >= B43_STAT_INITIALIZED
)) {
4483 /* Re-enable CFP update. */
4484 b43_hf_write(dev
, b43_hf_read(dev
) & ~B43_HF_SKCFPUP
);
4486 mutex_unlock(&wl
->mutex
);
4489 static const struct ieee80211_ops b43_hw_ops
= {
4491 .conf_tx
= b43_op_conf_tx
,
4492 .add_interface
= b43_op_add_interface
,
4493 .remove_interface
= b43_op_remove_interface
,
4494 .config
= b43_op_config
,
4495 .bss_info_changed
= b43_op_bss_info_changed
,
4496 .configure_filter
= b43_op_configure_filter
,
4497 .set_key
= b43_op_set_key
,
4498 .update_tkip_key
= b43_op_update_tkip_key
,
4499 .get_stats
= b43_op_get_stats
,
4500 .get_tx_stats
= b43_op_get_tx_stats
,
4501 .get_tsf
= b43_op_get_tsf
,
4502 .set_tsf
= b43_op_set_tsf
,
4503 .start
= b43_op_start
,
4504 .stop
= b43_op_stop
,
4505 .set_tim
= b43_op_beacon_set_tim
,
4506 .sta_notify
= b43_op_sta_notify
,
4507 .sw_scan_start
= b43_op_sw_scan_start_notifier
,
4508 .sw_scan_complete
= b43_op_sw_scan_complete_notifier
,
4509 .rfkill_poll
= b43_rfkill_poll
,
4512 /* Hard-reset the chip. Do not call this directly.
4513 * Use b43_controller_restart()
4515 static void b43_chip_reset(struct work_struct
*work
)
4517 struct b43_wldev
*dev
=
4518 container_of(work
, struct b43_wldev
, restart_work
);
4519 struct b43_wl
*wl
= dev
->wl
;
4523 mutex_lock(&wl
->mutex
);
4525 prev_status
= b43_status(dev
);
4526 /* Bring the device down... */
4527 if (prev_status
>= B43_STAT_STARTED
)
4528 b43_wireless_core_stop(dev
);
4529 if (prev_status
>= B43_STAT_INITIALIZED
)
4530 b43_wireless_core_exit(dev
);
4532 /* ...and up again. */
4533 if (prev_status
>= B43_STAT_INITIALIZED
) {
4534 err
= b43_wireless_core_init(dev
);
4538 if (prev_status
>= B43_STAT_STARTED
) {
4539 err
= b43_wireless_core_start(dev
);
4541 b43_wireless_core_exit(dev
);
4547 wl
->current_dev
= NULL
; /* Failed to init the dev. */
4548 mutex_unlock(&wl
->mutex
);
4550 b43err(wl
, "Controller restart FAILED\n");
4552 b43info(wl
, "Controller restarted\n");
4555 static int b43_setup_bands(struct b43_wldev
*dev
,
4556 bool have_2ghz_phy
, bool have_5ghz_phy
)
4558 struct ieee80211_hw
*hw
= dev
->wl
->hw
;
4561 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &b43_band_2GHz
;
4562 if (dev
->phy
.type
== B43_PHYTYPE_N
) {
4564 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] = &b43_band_5GHz_nphy
;
4567 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] = &b43_band_5GHz_aphy
;
4570 dev
->phy
.supports_2ghz
= have_2ghz_phy
;
4571 dev
->phy
.supports_5ghz
= have_5ghz_phy
;
4576 static void b43_wireless_core_detach(struct b43_wldev
*dev
)
4578 /* We release firmware that late to not be required to re-request
4579 * is all the time when we reinit the core. */
4580 b43_release_firmware(dev
);
4584 static int b43_wireless_core_attach(struct b43_wldev
*dev
)
4586 struct b43_wl
*wl
= dev
->wl
;
4587 struct ssb_bus
*bus
= dev
->dev
->bus
;
4588 struct pci_dev
*pdev
= bus
->host_pci
;
4590 bool have_2ghz_phy
= 0, have_5ghz_phy
= 0;
4593 /* Do NOT do any device initialization here.
4594 * Do it in wireless_core_init() instead.
4595 * This function is for gathering basic information about the HW, only.
4596 * Also some structs may be set up here. But most likely you want to have
4597 * that in core_init(), too.
4600 err
= ssb_bus_powerup(bus
, 0);
4602 b43err(wl
, "Bus powerup failed\n");
4605 /* Get the PHY type. */
4606 if (dev
->dev
->id
.revision
>= 5) {
4609 tmshigh
= ssb_read32(dev
->dev
, SSB_TMSHIGH
);
4610 have_2ghz_phy
= !!(tmshigh
& B43_TMSHIGH_HAVE_2GHZ_PHY
);
4611 have_5ghz_phy
= !!(tmshigh
& B43_TMSHIGH_HAVE_5GHZ_PHY
);
4615 dev
->phy
.gmode
= have_2ghz_phy
;
4616 dev
->phy
.radio_on
= 1;
4617 tmp
= dev
->phy
.gmode
? B43_TMSLOW_GMODE
: 0;
4618 b43_wireless_core_reset(dev
, tmp
);
4620 err
= b43_phy_versioning(dev
);
4623 /* Check if this device supports multiband. */
4625 (pdev
->device
!= 0x4312 &&
4626 pdev
->device
!= 0x4319 && pdev
->device
!= 0x4324)) {
4627 /* No multiband support. */
4630 switch (dev
->phy
.type
) {
4634 case B43_PHYTYPE_LP
: //FIXME not always!
4635 #if 0 //FIXME enabling 5GHz causes a NULL pointer dereference
4646 if (dev
->phy
.type
== B43_PHYTYPE_A
) {
4648 b43err(wl
, "IEEE 802.11a devices are unsupported\n");
4652 if (1 /* disable A-PHY */) {
4653 /* FIXME: For now we disable the A-PHY on multi-PHY devices. */
4654 if (dev
->phy
.type
!= B43_PHYTYPE_N
&&
4655 dev
->phy
.type
!= B43_PHYTYPE_LP
) {
4661 err
= b43_phy_allocate(dev
);
4665 dev
->phy
.gmode
= have_2ghz_phy
;
4666 tmp
= dev
->phy
.gmode
? B43_TMSLOW_GMODE
: 0;
4667 b43_wireless_core_reset(dev
, tmp
);
4669 err
= b43_validate_chipaccess(dev
);
4672 err
= b43_setup_bands(dev
, have_2ghz_phy
, have_5ghz_phy
);
4676 /* Now set some default "current_dev" */
4677 if (!wl
->current_dev
)
4678 wl
->current_dev
= dev
;
4679 INIT_WORK(&dev
->restart_work
, b43_chip_reset
);
4681 dev
->phy
.ops
->switch_analog(dev
, 0);
4682 ssb_device_disable(dev
->dev
, 0);
4683 ssb_bus_may_powerdown(bus
);
4691 ssb_bus_may_powerdown(bus
);
4695 static void b43_one_core_detach(struct ssb_device
*dev
)
4697 struct b43_wldev
*wldev
;
4700 /* Do not cancel ieee80211-workqueue based work here.
4701 * See comment in b43_remove(). */
4703 wldev
= ssb_get_drvdata(dev
);
4705 b43_debugfs_remove_device(wldev
);
4706 b43_wireless_core_detach(wldev
);
4707 list_del(&wldev
->list
);
4709 ssb_set_drvdata(dev
, NULL
);
4713 static int b43_one_core_attach(struct ssb_device
*dev
, struct b43_wl
*wl
)
4715 struct b43_wldev
*wldev
;
4716 struct pci_dev
*pdev
;
4719 if (!list_empty(&wl
->devlist
)) {
4720 /* We are not the first core on this chip. */
4721 pdev
= dev
->bus
->host_pci
;
4722 /* Only special chips support more than one wireless
4723 * core, although some of the other chips have more than
4724 * one wireless core as well. Check for this and
4728 ((pdev
->device
!= 0x4321) &&
4729 (pdev
->device
!= 0x4313) && (pdev
->device
!= 0x431A))) {
4730 b43dbg(wl
, "Ignoring unconnected 802.11 core\n");
4735 wldev
= kzalloc(sizeof(*wldev
), GFP_KERNEL
);
4741 b43_set_status(wldev
, B43_STAT_UNINIT
);
4742 wldev
->bad_frames_preempt
= modparam_bad_frames_preempt
;
4743 tasklet_init(&wldev
->isr_tasklet
,
4744 (void (*)(unsigned long))b43_interrupt_tasklet
,
4745 (unsigned long)wldev
);
4746 INIT_LIST_HEAD(&wldev
->list
);
4748 err
= b43_wireless_core_attach(wldev
);
4750 goto err_kfree_wldev
;
4752 list_add(&wldev
->list
, &wl
->devlist
);
4754 ssb_set_drvdata(dev
, wldev
);
4755 b43_debugfs_add_device(wldev
);
4765 #define IS_PDEV(pdev, _vendor, _device, _subvendor, _subdevice) ( \
4766 (pdev->vendor == PCI_VENDOR_ID_##_vendor) && \
4767 (pdev->device == _device) && \
4768 (pdev->subsystem_vendor == PCI_VENDOR_ID_##_subvendor) && \
4769 (pdev->subsystem_device == _subdevice) )
4771 static void b43_sprom_fixup(struct ssb_bus
*bus
)
4773 struct pci_dev
*pdev
;
4775 /* boardflags workarounds */
4776 if (bus
->boardinfo
.vendor
== SSB_BOARDVENDOR_DELL
&&
4777 bus
->chip_id
== 0x4301 && bus
->boardinfo
.rev
== 0x74)
4778 bus
->sprom
.boardflags_lo
|= B43_BFL_BTCOEXIST
;
4779 if (bus
->boardinfo
.vendor
== PCI_VENDOR_ID_APPLE
&&
4780 bus
->boardinfo
.type
== 0x4E && bus
->boardinfo
.rev
> 0x40)
4781 bus
->sprom
.boardflags_lo
|= B43_BFL_PACTRL
;
4782 if (bus
->bustype
== SSB_BUSTYPE_PCI
) {
4783 pdev
= bus
->host_pci
;
4784 if (IS_PDEV(pdev
, BROADCOM
, 0x4318, ASUSTEK
, 0x100F) ||
4785 IS_PDEV(pdev
, BROADCOM
, 0x4320, DELL
, 0x0003) ||
4786 IS_PDEV(pdev
, BROADCOM
, 0x4320, HP
, 0x12f8) ||
4787 IS_PDEV(pdev
, BROADCOM
, 0x4320, LINKSYS
, 0x0015) ||
4788 IS_PDEV(pdev
, BROADCOM
, 0x4320, LINKSYS
, 0x0014) ||
4789 IS_PDEV(pdev
, BROADCOM
, 0x4320, LINKSYS
, 0x0013) ||
4790 IS_PDEV(pdev
, BROADCOM
, 0x4320, MOTOROLA
, 0x7010))
4791 bus
->sprom
.boardflags_lo
&= ~B43_BFL_BTCOEXIST
;
4795 static void b43_wireless_exit(struct ssb_device
*dev
, struct b43_wl
*wl
)
4797 struct ieee80211_hw
*hw
= wl
->hw
;
4799 ssb_set_devtypedata(dev
, NULL
);
4800 ieee80211_free_hw(hw
);
4803 static int b43_wireless_init(struct ssb_device
*dev
)
4805 struct ssb_sprom
*sprom
= &dev
->bus
->sprom
;
4806 struct ieee80211_hw
*hw
;
4810 b43_sprom_fixup(dev
->bus
);
4812 hw
= ieee80211_alloc_hw(sizeof(*wl
), &b43_hw_ops
);
4814 b43err(NULL
, "Could not allocate ieee80211 device\n");
4817 wl
= hw_to_b43_wl(hw
);
4820 hw
->flags
= IEEE80211_HW_RX_INCLUDES_FCS
|
4821 IEEE80211_HW_SIGNAL_DBM
|
4822 IEEE80211_HW_NOISE_DBM
;
4824 hw
->wiphy
->interface_modes
=
4825 BIT(NL80211_IFTYPE_AP
) |
4826 BIT(NL80211_IFTYPE_MESH_POINT
) |
4827 BIT(NL80211_IFTYPE_STATION
) |
4828 BIT(NL80211_IFTYPE_WDS
) |
4829 BIT(NL80211_IFTYPE_ADHOC
);
4831 hw
->queues
= modparam_qos
? 4 : 1;
4832 wl
->mac80211_initially_registered_queues
= hw
->queues
;
4834 SET_IEEE80211_DEV(hw
, dev
->dev
);
4835 if (is_valid_ether_addr(sprom
->et1mac
))
4836 SET_IEEE80211_PERM_ADDR(hw
, sprom
->et1mac
);
4838 SET_IEEE80211_PERM_ADDR(hw
, sprom
->il0mac
);
4840 /* Initialize struct b43_wl */
4842 spin_lock_init(&wl
->irq_lock
);
4843 rwlock_init(&wl
->tx_lock
);
4844 spin_lock_init(&wl
->leds_lock
);
4845 spin_lock_init(&wl
->shm_lock
);
4846 mutex_init(&wl
->mutex
);
4847 INIT_LIST_HEAD(&wl
->devlist
);
4848 INIT_WORK(&wl
->beacon_update_trigger
, b43_beacon_update_trigger_work
);
4849 INIT_WORK(&wl
->txpower_adjust_work
, b43_phy_txpower_adjust_work
);
4851 ssb_set_devtypedata(dev
, wl
);
4852 b43info(wl
, "Broadcom %04X WLAN found (core revision %u)\n",
4853 dev
->bus
->chip_id
, dev
->id
.revision
);
4859 static int b43_probe(struct ssb_device
*dev
, const struct ssb_device_id
*id
)
4865 wl
= ssb_get_devtypedata(dev
);
4867 /* Probing the first core. Must setup common struct b43_wl */
4869 err
= b43_wireless_init(dev
);
4872 wl
= ssb_get_devtypedata(dev
);
4875 err
= b43_one_core_attach(dev
, wl
);
4877 goto err_wireless_exit
;
4880 err
= ieee80211_register_hw(wl
->hw
);
4882 goto err_one_core_detach
;
4888 err_one_core_detach
:
4889 b43_one_core_detach(dev
);
4892 b43_wireless_exit(dev
, wl
);
4896 static void b43_remove(struct ssb_device
*dev
)
4898 struct b43_wl
*wl
= ssb_get_devtypedata(dev
);
4899 struct b43_wldev
*wldev
= ssb_get_drvdata(dev
);
4901 /* We must cancel any work here before unregistering from ieee80211,
4902 * as the ieee80211 unreg will destroy the workqueue. */
4903 cancel_work_sync(&wldev
->restart_work
);
4906 if (wl
->current_dev
== wldev
) {
4907 /* Restore the queues count before unregistering, because firmware detect
4908 * might have modified it. Restoring is important, so the networking
4909 * stack can properly free resources. */
4910 wl
->hw
->queues
= wl
->mac80211_initially_registered_queues
;
4911 ieee80211_unregister_hw(wl
->hw
);
4914 b43_one_core_detach(dev
);
4916 if (list_empty(&wl
->devlist
)) {
4917 /* Last core on the chip unregistered.
4918 * We can destroy common struct b43_wl.
4920 b43_wireless_exit(dev
, wl
);
4924 /* Perform a hardware reset. This can be called from any context. */
4925 void b43_controller_restart(struct b43_wldev
*dev
, const char *reason
)
4927 /* Must avoid requeueing, if we are in shutdown. */
4928 if (b43_status(dev
) < B43_STAT_INITIALIZED
)
4930 b43info(dev
->wl
, "Controller RESET (%s) ...\n", reason
);
4931 ieee80211_queue_work(dev
->wl
->hw
, &dev
->restart_work
);
4936 static int b43_suspend(struct ssb_device
*dev
, pm_message_t state
)
4938 struct b43_wldev
*wldev
= ssb_get_drvdata(dev
);
4939 struct b43_wl
*wl
= wldev
->wl
;
4941 b43dbg(wl
, "Suspending...\n");
4943 mutex_lock(&wl
->mutex
);
4944 wldev
->suspend_in_progress
= true;
4945 wldev
->suspend_init_status
= b43_status(wldev
);
4946 if (wldev
->suspend_init_status
>= B43_STAT_STARTED
)
4947 b43_wireless_core_stop(wldev
);
4948 if (wldev
->suspend_init_status
>= B43_STAT_INITIALIZED
)
4949 b43_wireless_core_exit(wldev
);
4950 mutex_unlock(&wl
->mutex
);
4952 b43dbg(wl
, "Device suspended.\n");
4957 static int b43_resume(struct ssb_device
*dev
)
4959 struct b43_wldev
*wldev
= ssb_get_drvdata(dev
);
4960 struct b43_wl
*wl
= wldev
->wl
;
4963 b43dbg(wl
, "Resuming...\n");
4965 mutex_lock(&wl
->mutex
);
4966 if (wldev
->suspend_init_status
>= B43_STAT_INITIALIZED
) {
4967 err
= b43_wireless_core_init(wldev
);
4969 b43err(wl
, "Resume failed at core init\n");
4973 if (wldev
->suspend_init_status
>= B43_STAT_STARTED
) {
4974 err
= b43_wireless_core_start(wldev
);
4976 b43_leds_exit(wldev
);
4977 b43_rng_exit(wldev
->wl
);
4978 b43_wireless_core_exit(wldev
);
4979 b43err(wl
, "Resume failed at core start\n");
4983 b43dbg(wl
, "Device resumed.\n");
4985 wldev
->suspend_in_progress
= false;
4986 mutex_unlock(&wl
->mutex
);
4990 #else /* CONFIG_PM */
4991 # define b43_suspend NULL
4992 # define b43_resume NULL
4993 #endif /* CONFIG_PM */
4995 static struct ssb_driver b43_ssb_driver
= {
4996 .name
= KBUILD_MODNAME
,
4997 .id_table
= b43_ssb_tbl
,
4999 .remove
= b43_remove
,
5000 .suspend
= b43_suspend
,
5001 .resume
= b43_resume
,
5004 static void b43_print_driverinfo(void)
5006 const char *feat_pci
= "", *feat_pcmcia
= "", *feat_nphy
= "",
5009 #ifdef CONFIG_B43_PCI_AUTOSELECT
5012 #ifdef CONFIG_B43_PCMCIA
5015 #ifdef CONFIG_B43_NPHY
5018 #ifdef CONFIG_B43_LEDS
5021 printk(KERN_INFO
"Broadcom 43xx driver loaded "
5022 "[ Features: %s%s%s%s, Firmware-ID: "
5023 B43_SUPPORTED_FIRMWARE_ID
" ]\n",
5024 feat_pci
, feat_pcmcia
, feat_nphy
,
5028 static int __init
b43_init(void)
5033 err
= b43_pcmcia_init();
5036 err
= ssb_driver_register(&b43_ssb_driver
);
5038 goto err_pcmcia_exit
;
5039 b43_print_driverinfo();
5050 static void __exit
b43_exit(void)
5052 ssb_driver_unregister(&b43_ssb_driver
);
5057 module_init(b43_init
)
5058 module_exit(b43_exit
)