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>
12 Copyright (c) 2009 Albert Herranz <albert_herranz@yahoo.es>
14 Some parts of the code in this file are derived from the ipw2200
15 driver Copyright(c) 2003 - 2004 Intel Corporation.
17 This program is free software; you can redistribute it and/or modify
18 it under the terms of the GNU General Public License as published by
19 the Free Software Foundation; either version 2 of the License, or
20 (at your option) any later version.
22 This program is distributed in the hope that it will be useful,
23 but WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 GNU General Public License for more details.
27 You should have received a copy of the GNU General Public License
28 along with this program; see the file COPYING. If not, write to
29 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
30 Boston, MA 02110-1301, USA.
34 #include <linux/delay.h>
35 #include <linux/init.h>
36 #include <linux/moduleparam.h>
37 #include <linux/if_arp.h>
38 #include <linux/etherdevice.h>
39 #include <linux/firmware.h>
40 #include <linux/wireless.h>
41 #include <linux/workqueue.h>
42 #include <linux/skbuff.h>
44 #include <linux/dma-mapping.h>
45 #include <linux/slab.h>
46 #include <asm/unaligned.h>
51 #include "phy_common.h"
61 #include <linux/mmc/sdio_func.h>
63 MODULE_DESCRIPTION("Broadcom B43 wireless driver");
64 MODULE_AUTHOR("Martin Langer");
65 MODULE_AUTHOR("Stefano Brivio");
66 MODULE_AUTHOR("Michael Buesch");
67 MODULE_AUTHOR("Gábor Stefanik");
68 MODULE_LICENSE("GPL");
70 MODULE_FIRMWARE(B43_SUPPORTED_FIRMWARE_ID
);
71 MODULE_FIRMWARE("b43/ucode11.fw");
72 MODULE_FIRMWARE("b43/ucode13.fw");
73 MODULE_FIRMWARE("b43/ucode14.fw");
74 MODULE_FIRMWARE("b43/ucode15.fw");
75 MODULE_FIRMWARE("b43/ucode5.fw");
76 MODULE_FIRMWARE("b43/ucode9.fw");
78 static int modparam_bad_frames_preempt
;
79 module_param_named(bad_frames_preempt
, modparam_bad_frames_preempt
, int, 0444);
80 MODULE_PARM_DESC(bad_frames_preempt
,
81 "enable(1) / disable(0) Bad Frames Preemption");
83 static char modparam_fwpostfix
[16];
84 module_param_string(fwpostfix
, modparam_fwpostfix
, 16, 0444);
85 MODULE_PARM_DESC(fwpostfix
, "Postfix for the .fw files to load.");
87 static int modparam_hwpctl
;
88 module_param_named(hwpctl
, modparam_hwpctl
, int, 0444);
89 MODULE_PARM_DESC(hwpctl
, "Enable hardware-side power control (default off)");
91 static int modparam_nohwcrypt
;
92 module_param_named(nohwcrypt
, modparam_nohwcrypt
, int, 0444);
93 MODULE_PARM_DESC(nohwcrypt
, "Disable hardware encryption.");
95 static int modparam_hwtkip
;
96 module_param_named(hwtkip
, modparam_hwtkip
, int, 0444);
97 MODULE_PARM_DESC(hwtkip
, "Enable hardware tkip.");
99 static int modparam_qos
= 1;
100 module_param_named(qos
, modparam_qos
, int, 0444);
101 MODULE_PARM_DESC(qos
, "Enable QOS support (default on)");
103 static int modparam_btcoex
= 1;
104 module_param_named(btcoex
, modparam_btcoex
, int, 0444);
105 MODULE_PARM_DESC(btcoex
, "Enable Bluetooth coexistence (default on)");
107 int b43_modparam_verbose
= B43_VERBOSITY_DEFAULT
;
108 module_param_named(verbose
, b43_modparam_verbose
, int, 0644);
109 MODULE_PARM_DESC(verbose
, "Log message verbosity: 0=error, 1=warn, 2=info(default), 3=debug");
111 static int b43_modparam_pio
= B43_PIO_DEFAULT
;
112 module_param_named(pio
, b43_modparam_pio
, int, 0644);
113 MODULE_PARM_DESC(pio
, "Use PIO accesses by default: 0=DMA, 1=PIO");
115 static const struct ssb_device_id b43_ssb_tbl
[] = {
116 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 5),
117 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 6),
118 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 7),
119 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 9),
120 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 10),
121 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 11),
122 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 12),
123 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 13),
124 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 15),
125 SSB_DEVICE(SSB_VENDOR_BROADCOM
, SSB_DEV_80211
, 16),
129 MODULE_DEVICE_TABLE(ssb
, b43_ssb_tbl
);
131 /* Channel and ratetables are shared for all devices.
132 * They can't be const, because ieee80211 puts some precalculated
133 * data in there. This data is the same for all devices, so we don't
134 * get concurrency issues */
135 #define RATETAB_ENT(_rateid, _flags) \
137 .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \
138 .hw_value = (_rateid), \
143 * NOTE: When changing this, sync with xmit.c's
144 * b43_plcp_get_bitrate_idx_* functions!
146 static struct ieee80211_rate __b43_ratetable
[] = {
147 RATETAB_ENT(B43_CCK_RATE_1MB
, 0),
148 RATETAB_ENT(B43_CCK_RATE_2MB
, IEEE80211_RATE_SHORT_PREAMBLE
),
149 RATETAB_ENT(B43_CCK_RATE_5MB
, IEEE80211_RATE_SHORT_PREAMBLE
),
150 RATETAB_ENT(B43_CCK_RATE_11MB
, IEEE80211_RATE_SHORT_PREAMBLE
),
151 RATETAB_ENT(B43_OFDM_RATE_6MB
, 0),
152 RATETAB_ENT(B43_OFDM_RATE_9MB
, 0),
153 RATETAB_ENT(B43_OFDM_RATE_12MB
, 0),
154 RATETAB_ENT(B43_OFDM_RATE_18MB
, 0),
155 RATETAB_ENT(B43_OFDM_RATE_24MB
, 0),
156 RATETAB_ENT(B43_OFDM_RATE_36MB
, 0),
157 RATETAB_ENT(B43_OFDM_RATE_48MB
, 0),
158 RATETAB_ENT(B43_OFDM_RATE_54MB
, 0),
161 #define b43_a_ratetable (__b43_ratetable + 4)
162 #define b43_a_ratetable_size 8
163 #define b43_b_ratetable (__b43_ratetable + 0)
164 #define b43_b_ratetable_size 4
165 #define b43_g_ratetable (__b43_ratetable + 0)
166 #define b43_g_ratetable_size 12
168 #define CHAN4G(_channel, _freq, _flags) { \
169 .band = IEEE80211_BAND_2GHZ, \
170 .center_freq = (_freq), \
171 .hw_value = (_channel), \
173 .max_antenna_gain = 0, \
176 static struct ieee80211_channel b43_2ghz_chantable
[] = {
194 #define CHAN5G(_channel, _flags) { \
195 .band = IEEE80211_BAND_5GHZ, \
196 .center_freq = 5000 + (5 * (_channel)), \
197 .hw_value = (_channel), \
199 .max_antenna_gain = 0, \
202 static struct ieee80211_channel b43_5ghz_nphy_chantable
[] = {
203 CHAN5G(32, 0), CHAN5G(34, 0),
204 CHAN5G(36, 0), CHAN5G(38, 0),
205 CHAN5G(40, 0), CHAN5G(42, 0),
206 CHAN5G(44, 0), CHAN5G(46, 0),
207 CHAN5G(48, 0), CHAN5G(50, 0),
208 CHAN5G(52, 0), CHAN5G(54, 0),
209 CHAN5G(56, 0), CHAN5G(58, 0),
210 CHAN5G(60, 0), CHAN5G(62, 0),
211 CHAN5G(64, 0), CHAN5G(66, 0),
212 CHAN5G(68, 0), CHAN5G(70, 0),
213 CHAN5G(72, 0), CHAN5G(74, 0),
214 CHAN5G(76, 0), CHAN5G(78, 0),
215 CHAN5G(80, 0), CHAN5G(82, 0),
216 CHAN5G(84, 0), CHAN5G(86, 0),
217 CHAN5G(88, 0), CHAN5G(90, 0),
218 CHAN5G(92, 0), CHAN5G(94, 0),
219 CHAN5G(96, 0), CHAN5G(98, 0),
220 CHAN5G(100, 0), CHAN5G(102, 0),
221 CHAN5G(104, 0), CHAN5G(106, 0),
222 CHAN5G(108, 0), CHAN5G(110, 0),
223 CHAN5G(112, 0), CHAN5G(114, 0),
224 CHAN5G(116, 0), CHAN5G(118, 0),
225 CHAN5G(120, 0), CHAN5G(122, 0),
226 CHAN5G(124, 0), CHAN5G(126, 0),
227 CHAN5G(128, 0), CHAN5G(130, 0),
228 CHAN5G(132, 0), CHAN5G(134, 0),
229 CHAN5G(136, 0), CHAN5G(138, 0),
230 CHAN5G(140, 0), CHAN5G(142, 0),
231 CHAN5G(144, 0), CHAN5G(145, 0),
232 CHAN5G(146, 0), CHAN5G(147, 0),
233 CHAN5G(148, 0), CHAN5G(149, 0),
234 CHAN5G(150, 0), CHAN5G(151, 0),
235 CHAN5G(152, 0), CHAN5G(153, 0),
236 CHAN5G(154, 0), CHAN5G(155, 0),
237 CHAN5G(156, 0), CHAN5G(157, 0),
238 CHAN5G(158, 0), CHAN5G(159, 0),
239 CHAN5G(160, 0), CHAN5G(161, 0),
240 CHAN5G(162, 0), CHAN5G(163, 0),
241 CHAN5G(164, 0), CHAN5G(165, 0),
242 CHAN5G(166, 0), CHAN5G(168, 0),
243 CHAN5G(170, 0), CHAN5G(172, 0),
244 CHAN5G(174, 0), CHAN5G(176, 0),
245 CHAN5G(178, 0), CHAN5G(180, 0),
246 CHAN5G(182, 0), CHAN5G(184, 0),
247 CHAN5G(186, 0), CHAN5G(188, 0),
248 CHAN5G(190, 0), CHAN5G(192, 0),
249 CHAN5G(194, 0), CHAN5G(196, 0),
250 CHAN5G(198, 0), CHAN5G(200, 0),
251 CHAN5G(202, 0), CHAN5G(204, 0),
252 CHAN5G(206, 0), CHAN5G(208, 0),
253 CHAN5G(210, 0), CHAN5G(212, 0),
254 CHAN5G(214, 0), CHAN5G(216, 0),
255 CHAN5G(218, 0), CHAN5G(220, 0),
256 CHAN5G(222, 0), CHAN5G(224, 0),
257 CHAN5G(226, 0), CHAN5G(228, 0),
260 static struct ieee80211_channel b43_5ghz_aphy_chantable
[] = {
261 CHAN5G(34, 0), CHAN5G(36, 0),
262 CHAN5G(38, 0), CHAN5G(40, 0),
263 CHAN5G(42, 0), CHAN5G(44, 0),
264 CHAN5G(46, 0), CHAN5G(48, 0),
265 CHAN5G(52, 0), CHAN5G(56, 0),
266 CHAN5G(60, 0), CHAN5G(64, 0),
267 CHAN5G(100, 0), CHAN5G(104, 0),
268 CHAN5G(108, 0), CHAN5G(112, 0),
269 CHAN5G(116, 0), CHAN5G(120, 0),
270 CHAN5G(124, 0), CHAN5G(128, 0),
271 CHAN5G(132, 0), CHAN5G(136, 0),
272 CHAN5G(140, 0), CHAN5G(149, 0),
273 CHAN5G(153, 0), CHAN5G(157, 0),
274 CHAN5G(161, 0), CHAN5G(165, 0),
275 CHAN5G(184, 0), CHAN5G(188, 0),
276 CHAN5G(192, 0), CHAN5G(196, 0),
277 CHAN5G(200, 0), CHAN5G(204, 0),
278 CHAN5G(208, 0), CHAN5G(212, 0),
283 static struct ieee80211_supported_band b43_band_5GHz_nphy
= {
284 .band
= IEEE80211_BAND_5GHZ
,
285 .channels
= b43_5ghz_nphy_chantable
,
286 .n_channels
= ARRAY_SIZE(b43_5ghz_nphy_chantable
),
287 .bitrates
= b43_a_ratetable
,
288 .n_bitrates
= b43_a_ratetable_size
,
291 static struct ieee80211_supported_band b43_band_5GHz_aphy
= {
292 .band
= IEEE80211_BAND_5GHZ
,
293 .channels
= b43_5ghz_aphy_chantable
,
294 .n_channels
= ARRAY_SIZE(b43_5ghz_aphy_chantable
),
295 .bitrates
= b43_a_ratetable
,
296 .n_bitrates
= b43_a_ratetable_size
,
299 static struct ieee80211_supported_band b43_band_2GHz
= {
300 .band
= IEEE80211_BAND_2GHZ
,
301 .channels
= b43_2ghz_chantable
,
302 .n_channels
= ARRAY_SIZE(b43_2ghz_chantable
),
303 .bitrates
= b43_g_ratetable
,
304 .n_bitrates
= b43_g_ratetable_size
,
307 static void b43_wireless_core_exit(struct b43_wldev
*dev
);
308 static int b43_wireless_core_init(struct b43_wldev
*dev
);
309 static struct b43_wldev
* b43_wireless_core_stop(struct b43_wldev
*dev
);
310 static int b43_wireless_core_start(struct b43_wldev
*dev
);
312 static int b43_ratelimit(struct b43_wl
*wl
)
314 if (!wl
|| !wl
->current_dev
)
316 if (b43_status(wl
->current_dev
) < B43_STAT_STARTED
)
318 /* We are up and running.
319 * Ratelimit the messages to avoid DoS over the net. */
320 return net_ratelimit();
323 void b43info(struct b43_wl
*wl
, const char *fmt
, ...)
325 struct va_format vaf
;
328 if (b43_modparam_verbose
< B43_VERBOSITY_INFO
)
330 if (!b43_ratelimit(wl
))
338 printk(KERN_INFO
"b43-%s: %pV",
339 (wl
&& wl
->hw
) ? wiphy_name(wl
->hw
->wiphy
) : "wlan", &vaf
);
344 void b43err(struct b43_wl
*wl
, const char *fmt
, ...)
346 struct va_format vaf
;
349 if (b43_modparam_verbose
< B43_VERBOSITY_ERROR
)
351 if (!b43_ratelimit(wl
))
359 printk(KERN_ERR
"b43-%s ERROR: %pV",
360 (wl
&& wl
->hw
) ? wiphy_name(wl
->hw
->wiphy
) : "wlan", &vaf
);
365 void b43warn(struct b43_wl
*wl
, const char *fmt
, ...)
367 struct va_format vaf
;
370 if (b43_modparam_verbose
< B43_VERBOSITY_WARN
)
372 if (!b43_ratelimit(wl
))
380 printk(KERN_WARNING
"b43-%s warning: %pV",
381 (wl
&& wl
->hw
) ? wiphy_name(wl
->hw
->wiphy
) : "wlan", &vaf
);
386 void b43dbg(struct b43_wl
*wl
, const char *fmt
, ...)
388 struct va_format vaf
;
391 if (b43_modparam_verbose
< B43_VERBOSITY_DEBUG
)
399 printk(KERN_DEBUG
"b43-%s debug: %pV",
400 (wl
&& wl
->hw
) ? wiphy_name(wl
->hw
->wiphy
) : "wlan", &vaf
);
405 static void b43_ram_write(struct b43_wldev
*dev
, u16 offset
, u32 val
)
409 B43_WARN_ON(offset
% 4 != 0);
411 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
412 if (macctl
& B43_MACCTL_BE
)
415 b43_write32(dev
, B43_MMIO_RAM_CONTROL
, offset
);
417 b43_write32(dev
, B43_MMIO_RAM_DATA
, val
);
420 static inline void b43_shm_control_word(struct b43_wldev
*dev
,
421 u16 routing
, u16 offset
)
425 /* "offset" is the WORD offset. */
429 b43_write32(dev
, B43_MMIO_SHM_CONTROL
, control
);
432 u32
b43_shm_read32(struct b43_wldev
*dev
, u16 routing
, u16 offset
)
436 if (routing
== B43_SHM_SHARED
) {
437 B43_WARN_ON(offset
& 0x0001);
438 if (offset
& 0x0003) {
439 /* Unaligned access */
440 b43_shm_control_word(dev
, routing
, offset
>> 2);
441 ret
= b43_read16(dev
, B43_MMIO_SHM_DATA_UNALIGNED
);
442 b43_shm_control_word(dev
, routing
, (offset
>> 2) + 1);
443 ret
|= ((u32
)b43_read16(dev
, B43_MMIO_SHM_DATA
)) << 16;
449 b43_shm_control_word(dev
, routing
, offset
);
450 ret
= b43_read32(dev
, B43_MMIO_SHM_DATA
);
455 u16
b43_shm_read16(struct b43_wldev
*dev
, u16 routing
, u16 offset
)
459 if (routing
== B43_SHM_SHARED
) {
460 B43_WARN_ON(offset
& 0x0001);
461 if (offset
& 0x0003) {
462 /* Unaligned access */
463 b43_shm_control_word(dev
, routing
, offset
>> 2);
464 ret
= b43_read16(dev
, B43_MMIO_SHM_DATA_UNALIGNED
);
470 b43_shm_control_word(dev
, routing
, offset
);
471 ret
= b43_read16(dev
, B43_MMIO_SHM_DATA
);
476 void b43_shm_write32(struct b43_wldev
*dev
, u16 routing
, u16 offset
, u32 value
)
478 if (routing
== B43_SHM_SHARED
) {
479 B43_WARN_ON(offset
& 0x0001);
480 if (offset
& 0x0003) {
481 /* Unaligned access */
482 b43_shm_control_word(dev
, routing
, offset
>> 2);
483 b43_write16(dev
, B43_MMIO_SHM_DATA_UNALIGNED
,
485 b43_shm_control_word(dev
, routing
, (offset
>> 2) + 1);
486 b43_write16(dev
, B43_MMIO_SHM_DATA
,
487 (value
>> 16) & 0xFFFF);
492 b43_shm_control_word(dev
, routing
, offset
);
493 b43_write32(dev
, B43_MMIO_SHM_DATA
, value
);
496 void b43_shm_write16(struct b43_wldev
*dev
, u16 routing
, u16 offset
, u16 value
)
498 if (routing
== B43_SHM_SHARED
) {
499 B43_WARN_ON(offset
& 0x0001);
500 if (offset
& 0x0003) {
501 /* Unaligned access */
502 b43_shm_control_word(dev
, routing
, offset
>> 2);
503 b43_write16(dev
, B43_MMIO_SHM_DATA_UNALIGNED
, value
);
508 b43_shm_control_word(dev
, routing
, offset
);
509 b43_write16(dev
, B43_MMIO_SHM_DATA
, value
);
513 u64
b43_hf_read(struct b43_wldev
*dev
)
517 ret
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_HOSTFHI
);
519 ret
|= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_HOSTFMI
);
521 ret
|= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_HOSTFLO
);
526 /* Write HostFlags */
527 void b43_hf_write(struct b43_wldev
*dev
, u64 value
)
531 lo
= (value
& 0x00000000FFFFULL
);
532 mi
= (value
& 0x0000FFFF0000ULL
) >> 16;
533 hi
= (value
& 0xFFFF00000000ULL
) >> 32;
534 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_HOSTFLO
, lo
);
535 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_HOSTFMI
, mi
);
536 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_HOSTFHI
, hi
);
539 /* Read the firmware capabilities bitmask (Opensource firmware only) */
540 static u16
b43_fwcapa_read(struct b43_wldev
*dev
)
542 B43_WARN_ON(!dev
->fw
.opensource
);
543 return b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_FWCAPA
);
546 void b43_tsf_read(struct b43_wldev
*dev
, u64
*tsf
)
550 B43_WARN_ON(dev
->sdev
->id
.revision
< 3);
552 /* The hardware guarantees us an atomic read, if we
553 * read the low register first. */
554 low
= b43_read32(dev
, B43_MMIO_REV3PLUS_TSF_LOW
);
555 high
= b43_read32(dev
, B43_MMIO_REV3PLUS_TSF_HIGH
);
562 static void b43_time_lock(struct b43_wldev
*dev
)
566 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
567 macctl
|= B43_MACCTL_TBTTHOLD
;
568 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
569 /* Commit the write */
570 b43_read32(dev
, B43_MMIO_MACCTL
);
573 static void b43_time_unlock(struct b43_wldev
*dev
)
577 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
578 macctl
&= ~B43_MACCTL_TBTTHOLD
;
579 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
580 /* Commit the write */
581 b43_read32(dev
, B43_MMIO_MACCTL
);
584 static void b43_tsf_write_locked(struct b43_wldev
*dev
, u64 tsf
)
588 B43_WARN_ON(dev
->sdev
->id
.revision
< 3);
592 /* The hardware guarantees us an atomic write, if we
593 * write the low register first. */
594 b43_write32(dev
, B43_MMIO_REV3PLUS_TSF_LOW
, low
);
596 b43_write32(dev
, B43_MMIO_REV3PLUS_TSF_HIGH
, high
);
600 void b43_tsf_write(struct b43_wldev
*dev
, u64 tsf
)
603 b43_tsf_write_locked(dev
, tsf
);
604 b43_time_unlock(dev
);
608 void b43_macfilter_set(struct b43_wldev
*dev
, u16 offset
, const u8
*mac
)
610 static const u8 zero_addr
[ETH_ALEN
] = { 0 };
617 b43_write16(dev
, B43_MMIO_MACFILTER_CONTROL
, offset
);
621 b43_write16(dev
, B43_MMIO_MACFILTER_DATA
, data
);
624 b43_write16(dev
, B43_MMIO_MACFILTER_DATA
, data
);
627 b43_write16(dev
, B43_MMIO_MACFILTER_DATA
, data
);
630 static void b43_write_mac_bssid_templates(struct b43_wldev
*dev
)
634 u8 mac_bssid
[ETH_ALEN
* 2];
638 bssid
= dev
->wl
->bssid
;
639 mac
= dev
->wl
->mac_addr
;
641 b43_macfilter_set(dev
, B43_MACFILTER_BSSID
, bssid
);
643 memcpy(mac_bssid
, mac
, ETH_ALEN
);
644 memcpy(mac_bssid
+ ETH_ALEN
, bssid
, ETH_ALEN
);
646 /* Write our MAC address and BSSID to template ram */
647 for (i
= 0; i
< ARRAY_SIZE(mac_bssid
); i
+= sizeof(u32
)) {
648 tmp
= (u32
) (mac_bssid
[i
+ 0]);
649 tmp
|= (u32
) (mac_bssid
[i
+ 1]) << 8;
650 tmp
|= (u32
) (mac_bssid
[i
+ 2]) << 16;
651 tmp
|= (u32
) (mac_bssid
[i
+ 3]) << 24;
652 b43_ram_write(dev
, 0x20 + i
, tmp
);
656 static void b43_upload_card_macaddress(struct b43_wldev
*dev
)
658 b43_write_mac_bssid_templates(dev
);
659 b43_macfilter_set(dev
, B43_MACFILTER_SELF
, dev
->wl
->mac_addr
);
662 static void b43_set_slot_time(struct b43_wldev
*dev
, u16 slot_time
)
664 /* slot_time is in usec. */
665 /* This test used to exit for all but a G PHY. */
666 if (b43_current_band(dev
->wl
) == IEEE80211_BAND_5GHZ
)
668 b43_write16(dev
, B43_MMIO_IFSSLOT
, 510 + slot_time
);
669 /* Shared memory location 0x0010 is the slot time and should be
670 * set to slot_time; however, this register is initially 0 and changing
671 * the value adversely affects the transmit rate for BCM4311
672 * devices. Until this behavior is unterstood, delete this step
674 * b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time);
678 static void b43_short_slot_timing_enable(struct b43_wldev
*dev
)
680 b43_set_slot_time(dev
, 9);
683 static void b43_short_slot_timing_disable(struct b43_wldev
*dev
)
685 b43_set_slot_time(dev
, 20);
688 /* DummyTransmission function, as documented on
689 * http://bcm-v4.sipsolutions.net/802.11/DummyTransmission
691 void b43_dummy_transmission(struct b43_wldev
*dev
, bool ofdm
, bool pa_on
)
693 struct b43_phy
*phy
= &dev
->phy
;
694 unsigned int i
, max_loop
;
706 buffer
[0] = 0x000201CC;
709 buffer
[0] = 0x000B846E;
712 for (i
= 0; i
< 5; i
++)
713 b43_ram_write(dev
, i
* 4, buffer
[i
]);
715 b43_write16(dev
, 0x0568, 0x0000);
716 if (dev
->sdev
->id
.revision
< 11)
717 b43_write16(dev
, 0x07C0, 0x0000);
719 b43_write16(dev
, 0x07C0, 0x0100);
720 value
= (ofdm
? 0x41 : 0x40);
721 b43_write16(dev
, 0x050C, value
);
722 if ((phy
->type
== B43_PHYTYPE_N
) || (phy
->type
== B43_PHYTYPE_LP
))
723 b43_write16(dev
, 0x0514, 0x1A02);
724 b43_write16(dev
, 0x0508, 0x0000);
725 b43_write16(dev
, 0x050A, 0x0000);
726 b43_write16(dev
, 0x054C, 0x0000);
727 b43_write16(dev
, 0x056A, 0x0014);
728 b43_write16(dev
, 0x0568, 0x0826);
729 b43_write16(dev
, 0x0500, 0x0000);
730 if (!pa_on
&& (phy
->type
== B43_PHYTYPE_N
)) {
736 b43_write16(dev
, 0x0502, 0x00D0);
739 b43_write16(dev
, 0x0502, 0x0050);
742 b43_write16(dev
, 0x0502, 0x0030);
745 if (phy
->radio_ver
== 0x2050 && phy
->radio_rev
<= 0x5)
746 b43_radio_write16(dev
, 0x0051, 0x0017);
747 for (i
= 0x00; i
< max_loop
; i
++) {
748 value
= b43_read16(dev
, 0x050E);
753 for (i
= 0x00; i
< 0x0A; i
++) {
754 value
= b43_read16(dev
, 0x050E);
759 for (i
= 0x00; i
< 0x19; i
++) {
760 value
= b43_read16(dev
, 0x0690);
761 if (!(value
& 0x0100))
765 if (phy
->radio_ver
== 0x2050 && phy
->radio_rev
<= 0x5)
766 b43_radio_write16(dev
, 0x0051, 0x0037);
769 static void key_write(struct b43_wldev
*dev
,
770 u8 index
, u8 algorithm
, const u8
*key
)
777 /* Key index/algo block */
778 kidx
= b43_kidx_to_fw(dev
, index
);
779 value
= ((kidx
<< 4) | algorithm
);
780 b43_shm_write16(dev
, B43_SHM_SHARED
,
781 B43_SHM_SH_KEYIDXBLOCK
+ (kidx
* 2), value
);
783 /* Write the key to the Key Table Pointer offset */
784 offset
= dev
->ktp
+ (index
* B43_SEC_KEYSIZE
);
785 for (i
= 0; i
< B43_SEC_KEYSIZE
; i
+= 2) {
787 value
|= (u16
) (key
[i
+ 1]) << 8;
788 b43_shm_write16(dev
, B43_SHM_SHARED
, offset
+ i
, value
);
792 static void keymac_write(struct b43_wldev
*dev
, u8 index
, const u8
*addr
)
794 u32 addrtmp
[2] = { 0, 0, };
795 u8 pairwise_keys_start
= B43_NR_GROUP_KEYS
* 2;
797 if (b43_new_kidx_api(dev
))
798 pairwise_keys_start
= B43_NR_GROUP_KEYS
;
800 B43_WARN_ON(index
< pairwise_keys_start
);
801 /* We have four default TX keys and possibly four default RX keys.
802 * Physical mac 0 is mapped to physical key 4 or 8, depending
803 * on the firmware version.
804 * So we must adjust the index here.
806 index
-= pairwise_keys_start
;
807 B43_WARN_ON(index
>= B43_NR_PAIRWISE_KEYS
);
810 addrtmp
[0] = addr
[0];
811 addrtmp
[0] |= ((u32
) (addr
[1]) << 8);
812 addrtmp
[0] |= ((u32
) (addr
[2]) << 16);
813 addrtmp
[0] |= ((u32
) (addr
[3]) << 24);
814 addrtmp
[1] = addr
[4];
815 addrtmp
[1] |= ((u32
) (addr
[5]) << 8);
818 /* Receive match transmitter address (RCMTA) mechanism */
819 b43_shm_write32(dev
, B43_SHM_RCMTA
,
820 (index
* 2) + 0, addrtmp
[0]);
821 b43_shm_write16(dev
, B43_SHM_RCMTA
,
822 (index
* 2) + 1, addrtmp
[1]);
825 /* The ucode will use phase1 key with TEK key to decrypt rx packets.
826 * When a packet is received, the iv32 is checked.
827 * - if it doesn't the packet is returned without modification (and software
828 * decryption can be done). That's what happen when iv16 wrap.
829 * - if it does, the rc4 key is computed, and decryption is tried.
830 * Either it will success and B43_RX_MAC_DEC is returned,
831 * either it fails and B43_RX_MAC_DEC|B43_RX_MAC_DECERR is returned
832 * and the packet is not usable (it got modified by the ucode).
833 * So in order to never have B43_RX_MAC_DECERR, we should provide
834 * a iv32 and phase1key that match. Because we drop packets in case of
835 * B43_RX_MAC_DECERR, if we have a correct iv32 but a wrong phase1key, all
836 * packets will be lost without higher layer knowing (ie no resync possible
839 * NOTE : this should support 50 key like RCMTA because
840 * (B43_SHM_SH_KEYIDXBLOCK - B43_SHM_SH_TKIPTSCTTAK)/14 = 50
842 static void rx_tkip_phase1_write(struct b43_wldev
*dev
, u8 index
, u32 iv32
,
847 u8 pairwise_keys_start
= B43_NR_GROUP_KEYS
* 2;
849 if (!modparam_hwtkip
)
852 if (b43_new_kidx_api(dev
))
853 pairwise_keys_start
= B43_NR_GROUP_KEYS
;
855 B43_WARN_ON(index
< pairwise_keys_start
);
856 /* We have four default TX keys and possibly four default RX keys.
857 * Physical mac 0 is mapped to physical key 4 or 8, depending
858 * on the firmware version.
859 * So we must adjust the index here.
861 index
-= pairwise_keys_start
;
862 B43_WARN_ON(index
>= B43_NR_PAIRWISE_KEYS
);
864 if (b43_debug(dev
, B43_DBG_KEYS
)) {
865 b43dbg(dev
->wl
, "rx_tkip_phase1_write : idx 0x%x, iv32 0x%x\n",
868 /* Write the key to the RX tkip shared mem */
869 offset
= B43_SHM_SH_TKIPTSCTTAK
+ index
* (10 + 4);
870 for (i
= 0; i
< 10; i
+= 2) {
871 b43_shm_write16(dev
, B43_SHM_SHARED
, offset
+ i
,
872 phase1key
? phase1key
[i
/ 2] : 0);
874 b43_shm_write16(dev
, B43_SHM_SHARED
, offset
+ i
, iv32
);
875 b43_shm_write16(dev
, B43_SHM_SHARED
, offset
+ i
+ 2, iv32
>> 16);
878 static void b43_op_update_tkip_key(struct ieee80211_hw
*hw
,
879 struct ieee80211_vif
*vif
,
880 struct ieee80211_key_conf
*keyconf
,
881 struct ieee80211_sta
*sta
,
882 u32 iv32
, u16
*phase1key
)
884 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
885 struct b43_wldev
*dev
;
886 int index
= keyconf
->hw_key_idx
;
888 if (B43_WARN_ON(!modparam_hwtkip
))
891 /* This is only called from the RX path through mac80211, where
892 * our mutex is already locked. */
893 B43_WARN_ON(!mutex_is_locked(&wl
->mutex
));
894 dev
= wl
->current_dev
;
895 B43_WARN_ON(!dev
|| b43_status(dev
) < B43_STAT_INITIALIZED
);
897 keymac_write(dev
, index
, NULL
); /* First zero out mac to avoid race */
899 rx_tkip_phase1_write(dev
, index
, iv32
, phase1key
);
900 /* only pairwise TKIP keys are supported right now */
903 keymac_write(dev
, index
, sta
->addr
);
906 static void do_key_write(struct b43_wldev
*dev
,
907 u8 index
, u8 algorithm
,
908 const u8
*key
, size_t key_len
, const u8
*mac_addr
)
910 u8 buf
[B43_SEC_KEYSIZE
] = { 0, };
911 u8 pairwise_keys_start
= B43_NR_GROUP_KEYS
* 2;
913 if (b43_new_kidx_api(dev
))
914 pairwise_keys_start
= B43_NR_GROUP_KEYS
;
916 B43_WARN_ON(index
>= ARRAY_SIZE(dev
->key
));
917 B43_WARN_ON(key_len
> B43_SEC_KEYSIZE
);
919 if (index
>= pairwise_keys_start
)
920 keymac_write(dev
, index
, NULL
); /* First zero out mac. */
921 if (algorithm
== B43_SEC_ALGO_TKIP
) {
923 * We should provide an initial iv32, phase1key pair.
924 * We could start with iv32=0 and compute the corresponding
925 * phase1key, but this means calling ieee80211_get_tkip_key
926 * with a fake skb (or export other tkip function).
927 * Because we are lazy we hope iv32 won't start with
928 * 0xffffffff and let's b43_op_update_tkip_key provide a
931 rx_tkip_phase1_write(dev
, index
, 0xffffffff, (u16
*)buf
);
932 } else if (index
>= pairwise_keys_start
) /* clear it */
933 rx_tkip_phase1_write(dev
, index
, 0, NULL
);
935 memcpy(buf
, key
, key_len
);
936 key_write(dev
, index
, algorithm
, buf
);
937 if (index
>= pairwise_keys_start
)
938 keymac_write(dev
, index
, mac_addr
);
940 dev
->key
[index
].algorithm
= algorithm
;
943 static int b43_key_write(struct b43_wldev
*dev
,
944 int index
, u8 algorithm
,
945 const u8
*key
, size_t key_len
,
947 struct ieee80211_key_conf
*keyconf
)
950 int pairwise_keys_start
;
952 /* For ALG_TKIP the key is encoded as a 256-bit (32 byte) data block:
953 * - Temporal Encryption Key (128 bits)
954 * - Temporal Authenticator Tx MIC Key (64 bits)
955 * - Temporal Authenticator Rx MIC Key (64 bits)
957 * Hardware only store TEK
959 if (algorithm
== B43_SEC_ALGO_TKIP
&& key_len
== 32)
961 if (key_len
> B43_SEC_KEYSIZE
)
963 for (i
= 0; i
< ARRAY_SIZE(dev
->key
); i
++) {
964 /* Check that we don't already have this key. */
965 B43_WARN_ON(dev
->key
[i
].keyconf
== keyconf
);
968 /* Pairwise key. Get an empty slot for the key. */
969 if (b43_new_kidx_api(dev
))
970 pairwise_keys_start
= B43_NR_GROUP_KEYS
;
972 pairwise_keys_start
= B43_NR_GROUP_KEYS
* 2;
973 for (i
= pairwise_keys_start
;
974 i
< pairwise_keys_start
+ B43_NR_PAIRWISE_KEYS
;
976 B43_WARN_ON(i
>= ARRAY_SIZE(dev
->key
));
977 if (!dev
->key
[i
].keyconf
) {
984 b43warn(dev
->wl
, "Out of hardware key memory\n");
988 B43_WARN_ON(index
> 3);
990 do_key_write(dev
, index
, algorithm
, key
, key_len
, mac_addr
);
991 if ((index
<= 3) && !b43_new_kidx_api(dev
)) {
993 B43_WARN_ON(mac_addr
);
994 do_key_write(dev
, index
+ 4, algorithm
, key
, key_len
, NULL
);
996 keyconf
->hw_key_idx
= index
;
997 dev
->key
[index
].keyconf
= keyconf
;
1002 static int b43_key_clear(struct b43_wldev
*dev
, int index
)
1004 if (B43_WARN_ON((index
< 0) || (index
>= ARRAY_SIZE(dev
->key
))))
1006 do_key_write(dev
, index
, B43_SEC_ALGO_NONE
,
1007 NULL
, B43_SEC_KEYSIZE
, NULL
);
1008 if ((index
<= 3) && !b43_new_kidx_api(dev
)) {
1009 do_key_write(dev
, index
+ 4, B43_SEC_ALGO_NONE
,
1010 NULL
, B43_SEC_KEYSIZE
, NULL
);
1012 dev
->key
[index
].keyconf
= NULL
;
1017 static void b43_clear_keys(struct b43_wldev
*dev
)
1021 if (b43_new_kidx_api(dev
))
1022 count
= B43_NR_GROUP_KEYS
+ B43_NR_PAIRWISE_KEYS
;
1024 count
= B43_NR_GROUP_KEYS
* 2 + B43_NR_PAIRWISE_KEYS
;
1025 for (i
= 0; i
< count
; i
++)
1026 b43_key_clear(dev
, i
);
1029 static void b43_dump_keymemory(struct b43_wldev
*dev
)
1031 unsigned int i
, index
, count
, offset
, pairwise_keys_start
;
1037 struct b43_key
*key
;
1039 if (!b43_debug(dev
, B43_DBG_KEYS
))
1042 hf
= b43_hf_read(dev
);
1043 b43dbg(dev
->wl
, "Hardware key memory dump: USEDEFKEYS=%u\n",
1044 !!(hf
& B43_HF_USEDEFKEYS
));
1045 if (b43_new_kidx_api(dev
)) {
1046 pairwise_keys_start
= B43_NR_GROUP_KEYS
;
1047 count
= B43_NR_GROUP_KEYS
+ B43_NR_PAIRWISE_KEYS
;
1049 pairwise_keys_start
= B43_NR_GROUP_KEYS
* 2;
1050 count
= B43_NR_GROUP_KEYS
* 2 + B43_NR_PAIRWISE_KEYS
;
1052 for (index
= 0; index
< count
; index
++) {
1053 key
= &(dev
->key
[index
]);
1054 printk(KERN_DEBUG
"Key slot %02u: %s",
1055 index
, (key
->keyconf
== NULL
) ? " " : "*");
1056 offset
= dev
->ktp
+ (index
* B43_SEC_KEYSIZE
);
1057 for (i
= 0; i
< B43_SEC_KEYSIZE
; i
+= 2) {
1058 u16 tmp
= b43_shm_read16(dev
, B43_SHM_SHARED
, offset
+ i
);
1059 printk("%02X%02X", (tmp
& 0xFF), ((tmp
>> 8) & 0xFF));
1062 algo
= b43_shm_read16(dev
, B43_SHM_SHARED
,
1063 B43_SHM_SH_KEYIDXBLOCK
+ (index
* 2));
1064 printk(" Algo: %04X/%02X", algo
, key
->algorithm
);
1066 if (index
>= pairwise_keys_start
) {
1067 if (key
->algorithm
== B43_SEC_ALGO_TKIP
) {
1069 offset
= B43_SHM_SH_TKIPTSCTTAK
+ (index
- 4) * (10 + 4);
1070 for (i
= 0; i
< 14; i
+= 2) {
1071 u16 tmp
= b43_shm_read16(dev
, B43_SHM_SHARED
, offset
+ i
);
1072 printk("%02X%02X", (tmp
& 0xFF), ((tmp
>> 8) & 0xFF));
1075 rcmta0
= b43_shm_read32(dev
, B43_SHM_RCMTA
,
1076 ((index
- pairwise_keys_start
) * 2) + 0);
1077 rcmta1
= b43_shm_read16(dev
, B43_SHM_RCMTA
,
1078 ((index
- pairwise_keys_start
) * 2) + 1);
1079 *((__le32
*)(&mac
[0])) = cpu_to_le32(rcmta0
);
1080 *((__le16
*)(&mac
[4])) = cpu_to_le16(rcmta1
);
1081 printk(" MAC: %pM", mac
);
1083 printk(" DEFAULT KEY");
1088 void b43_power_saving_ctl_bits(struct b43_wldev
*dev
, unsigned int ps_flags
)
1096 B43_WARN_ON((ps_flags
& B43_PS_ENABLED
) &&
1097 (ps_flags
& B43_PS_DISABLED
));
1098 B43_WARN_ON((ps_flags
& B43_PS_AWAKE
) && (ps_flags
& B43_PS_ASLEEP
));
1100 if (ps_flags
& B43_PS_ENABLED
) {
1102 } else if (ps_flags
& B43_PS_DISABLED
) {
1105 //TODO: If powersave is not off and FIXME is not set and we are not in adhoc
1106 // and thus is not an AP and we are associated, set bit 25
1108 if (ps_flags
& B43_PS_AWAKE
) {
1110 } else if (ps_flags
& B43_PS_ASLEEP
) {
1113 //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME,
1114 // or we are associated, or FIXME, or the latest PS-Poll packet sent was
1115 // successful, set bit26
1118 /* FIXME: For now we force awake-on and hwps-off */
1122 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
1124 macctl
|= B43_MACCTL_HWPS
;
1126 macctl
&= ~B43_MACCTL_HWPS
;
1128 macctl
|= B43_MACCTL_AWAKE
;
1130 macctl
&= ~B43_MACCTL_AWAKE
;
1131 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
1133 b43_read32(dev
, B43_MMIO_MACCTL
);
1134 if (awake
&& dev
->sdev
->id
.revision
>= 5) {
1135 /* Wait for the microcode to wake up. */
1136 for (i
= 0; i
< 100; i
++) {
1137 ucstat
= b43_shm_read16(dev
, B43_SHM_SHARED
,
1138 B43_SHM_SH_UCODESTAT
);
1139 if (ucstat
!= B43_SHM_SH_UCODESTAT_SLEEP
)
1146 void b43_wireless_core_reset(struct b43_wldev
*dev
, u32 flags
)
1151 flags
|= B43_TMSLOW_PHYCLKEN
;
1152 flags
|= B43_TMSLOW_PHYRESET
;
1153 if (dev
->phy
.type
== B43_PHYTYPE_N
)
1154 flags
|= B43_TMSLOW_PHY_BANDWIDTH_20MHZ
; /* Make 20 MHz def */
1155 ssb_device_enable(dev
->sdev
, flags
);
1156 msleep(2); /* Wait for the PLL to turn on. */
1158 /* Now take the PHY out of Reset again */
1159 tmslow
= ssb_read32(dev
->sdev
, SSB_TMSLOW
);
1160 tmslow
|= SSB_TMSLOW_FGC
;
1161 tmslow
&= ~B43_TMSLOW_PHYRESET
;
1162 ssb_write32(dev
->sdev
, SSB_TMSLOW
, tmslow
);
1163 ssb_read32(dev
->sdev
, SSB_TMSLOW
); /* flush */
1165 tmslow
&= ~SSB_TMSLOW_FGC
;
1166 ssb_write32(dev
->sdev
, SSB_TMSLOW
, tmslow
);
1167 ssb_read32(dev
->sdev
, SSB_TMSLOW
); /* flush */
1170 /* Turn Analog ON, but only if we already know the PHY-type.
1171 * This protects against very early setup where we don't know the
1172 * PHY-type, yet. wireless_core_reset will be called once again later,
1173 * when we know the PHY-type. */
1175 dev
->phy
.ops
->switch_analog(dev
, 1);
1177 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
1178 macctl
&= ~B43_MACCTL_GMODE
;
1179 if (flags
& B43_TMSLOW_GMODE
)
1180 macctl
|= B43_MACCTL_GMODE
;
1181 macctl
|= B43_MACCTL_IHR_ENABLED
;
1182 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
1185 static void handle_irq_transmit_status(struct b43_wldev
*dev
)
1189 struct b43_txstatus stat
;
1192 v0
= b43_read32(dev
, B43_MMIO_XMITSTAT_0
);
1193 if (!(v0
& 0x00000001))
1195 v1
= b43_read32(dev
, B43_MMIO_XMITSTAT_1
);
1197 stat
.cookie
= (v0
>> 16);
1198 stat
.seq
= (v1
& 0x0000FFFF);
1199 stat
.phy_stat
= ((v1
& 0x00FF0000) >> 16);
1200 tmp
= (v0
& 0x0000FFFF);
1201 stat
.frame_count
= ((tmp
& 0xF000) >> 12);
1202 stat
.rts_count
= ((tmp
& 0x0F00) >> 8);
1203 stat
.supp_reason
= ((tmp
& 0x001C) >> 2);
1204 stat
.pm_indicated
= !!(tmp
& 0x0080);
1205 stat
.intermediate
= !!(tmp
& 0x0040);
1206 stat
.for_ampdu
= !!(tmp
& 0x0020);
1207 stat
.acked
= !!(tmp
& 0x0002);
1209 b43_handle_txstatus(dev
, &stat
);
1213 static void drain_txstatus_queue(struct b43_wldev
*dev
)
1217 if (dev
->sdev
->id
.revision
< 5)
1219 /* Read all entries from the microcode TXstatus FIFO
1220 * and throw them away.
1223 dummy
= b43_read32(dev
, B43_MMIO_XMITSTAT_0
);
1224 if (!(dummy
& 0x00000001))
1226 dummy
= b43_read32(dev
, B43_MMIO_XMITSTAT_1
);
1230 static u32
b43_jssi_read(struct b43_wldev
*dev
)
1234 val
= b43_shm_read16(dev
, B43_SHM_SHARED
, 0x08A);
1236 val
|= b43_shm_read16(dev
, B43_SHM_SHARED
, 0x088);
1241 static void b43_jssi_write(struct b43_wldev
*dev
, u32 jssi
)
1243 b43_shm_write16(dev
, B43_SHM_SHARED
, 0x088, (jssi
& 0x0000FFFF));
1244 b43_shm_write16(dev
, B43_SHM_SHARED
, 0x08A, (jssi
& 0xFFFF0000) >> 16);
1247 static void b43_generate_noise_sample(struct b43_wldev
*dev
)
1249 b43_jssi_write(dev
, 0x7F7F7F7F);
1250 b43_write32(dev
, B43_MMIO_MACCMD
,
1251 b43_read32(dev
, B43_MMIO_MACCMD
) | B43_MACCMD_BGNOISE
);
1254 static void b43_calculate_link_quality(struct b43_wldev
*dev
)
1256 /* Top half of Link Quality calculation. */
1258 if (dev
->phy
.type
!= B43_PHYTYPE_G
)
1260 if (dev
->noisecalc
.calculation_running
)
1262 dev
->noisecalc
.calculation_running
= 1;
1263 dev
->noisecalc
.nr_samples
= 0;
1265 b43_generate_noise_sample(dev
);
1268 static void handle_irq_noise(struct b43_wldev
*dev
)
1270 struct b43_phy_g
*phy
= dev
->phy
.g
;
1276 /* Bottom half of Link Quality calculation. */
1278 if (dev
->phy
.type
!= B43_PHYTYPE_G
)
1281 /* Possible race condition: It might be possible that the user
1282 * changed to a different channel in the meantime since we
1283 * started the calculation. We ignore that fact, since it's
1284 * not really that much of a problem. The background noise is
1285 * an estimation only anyway. Slightly wrong results will get damped
1286 * by the averaging of the 8 sample rounds. Additionally the
1287 * value is shortlived. So it will be replaced by the next noise
1288 * calculation round soon. */
1290 B43_WARN_ON(!dev
->noisecalc
.calculation_running
);
1291 *((__le32
*)noise
) = cpu_to_le32(b43_jssi_read(dev
));
1292 if (noise
[0] == 0x7F || noise
[1] == 0x7F ||
1293 noise
[2] == 0x7F || noise
[3] == 0x7F)
1296 /* Get the noise samples. */
1297 B43_WARN_ON(dev
->noisecalc
.nr_samples
>= 8);
1298 i
= dev
->noisecalc
.nr_samples
;
1299 noise
[0] = clamp_val(noise
[0], 0, ARRAY_SIZE(phy
->nrssi_lt
) - 1);
1300 noise
[1] = clamp_val(noise
[1], 0, ARRAY_SIZE(phy
->nrssi_lt
) - 1);
1301 noise
[2] = clamp_val(noise
[2], 0, ARRAY_SIZE(phy
->nrssi_lt
) - 1);
1302 noise
[3] = clamp_val(noise
[3], 0, ARRAY_SIZE(phy
->nrssi_lt
) - 1);
1303 dev
->noisecalc
.samples
[i
][0] = phy
->nrssi_lt
[noise
[0]];
1304 dev
->noisecalc
.samples
[i
][1] = phy
->nrssi_lt
[noise
[1]];
1305 dev
->noisecalc
.samples
[i
][2] = phy
->nrssi_lt
[noise
[2]];
1306 dev
->noisecalc
.samples
[i
][3] = phy
->nrssi_lt
[noise
[3]];
1307 dev
->noisecalc
.nr_samples
++;
1308 if (dev
->noisecalc
.nr_samples
== 8) {
1309 /* Calculate the Link Quality by the noise samples. */
1311 for (i
= 0; i
< 8; i
++) {
1312 for (j
= 0; j
< 4; j
++)
1313 average
+= dev
->noisecalc
.samples
[i
][j
];
1319 tmp
= b43_shm_read16(dev
, B43_SHM_SHARED
, 0x40C);
1320 tmp
= (tmp
/ 128) & 0x1F;
1330 dev
->stats
.link_noise
= average
;
1331 dev
->noisecalc
.calculation_running
= 0;
1335 b43_generate_noise_sample(dev
);
1338 static void handle_irq_tbtt_indication(struct b43_wldev
*dev
)
1340 if (b43_is_mode(dev
->wl
, NL80211_IFTYPE_AP
)) {
1343 if (1 /*FIXME: the last PSpoll frame was sent successfully */ )
1344 b43_power_saving_ctl_bits(dev
, 0);
1346 if (b43_is_mode(dev
->wl
, NL80211_IFTYPE_ADHOC
))
1350 static void handle_irq_atim_end(struct b43_wldev
*dev
)
1352 if (dev
->dfq_valid
) {
1353 b43_write32(dev
, B43_MMIO_MACCMD
,
1354 b43_read32(dev
, B43_MMIO_MACCMD
)
1355 | B43_MACCMD_DFQ_VALID
);
1360 static void handle_irq_pmq(struct b43_wldev
*dev
)
1367 tmp
= b43_read32(dev
, B43_MMIO_PS_STATUS
);
1368 if (!(tmp
& 0x00000008))
1371 /* 16bit write is odd, but correct. */
1372 b43_write16(dev
, B43_MMIO_PS_STATUS
, 0x0002);
1375 static void b43_write_template_common(struct b43_wldev
*dev
,
1376 const u8
*data
, u16 size
,
1378 u16 shm_size_offset
, u8 rate
)
1381 struct b43_plcp_hdr4 plcp
;
1384 b43_generate_plcp_hdr(&plcp
, size
+ FCS_LEN
, rate
);
1385 b43_ram_write(dev
, ram_offset
, le32_to_cpu(plcp
.data
));
1386 ram_offset
+= sizeof(u32
);
1387 /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet.
1388 * So leave the first two bytes of the next write blank.
1390 tmp
= (u32
) (data
[0]) << 16;
1391 tmp
|= (u32
) (data
[1]) << 24;
1392 b43_ram_write(dev
, ram_offset
, tmp
);
1393 ram_offset
+= sizeof(u32
);
1394 for (i
= 2; i
< size
; i
+= sizeof(u32
)) {
1395 tmp
= (u32
) (data
[i
+ 0]);
1397 tmp
|= (u32
) (data
[i
+ 1]) << 8;
1399 tmp
|= (u32
) (data
[i
+ 2]) << 16;
1401 tmp
|= (u32
) (data
[i
+ 3]) << 24;
1402 b43_ram_write(dev
, ram_offset
+ i
- 2, tmp
);
1404 b43_shm_write16(dev
, B43_SHM_SHARED
, shm_size_offset
,
1405 size
+ sizeof(struct b43_plcp_hdr6
));
1408 /* Check if the use of the antenna that ieee80211 told us to
1409 * use is possible. This will fall back to DEFAULT.
1410 * "antenna_nr" is the antenna identifier we got from ieee80211. */
1411 u8
b43_ieee80211_antenna_sanitize(struct b43_wldev
*dev
,
1416 if (antenna_nr
== 0) {
1417 /* Zero means "use default antenna". That's always OK. */
1421 /* Get the mask of available antennas. */
1423 antenna_mask
= dev
->sdev
->bus
->sprom
.ant_available_bg
;
1425 antenna_mask
= dev
->sdev
->bus
->sprom
.ant_available_a
;
1427 if (!(antenna_mask
& (1 << (antenna_nr
- 1)))) {
1428 /* This antenna is not available. Fall back to default. */
1435 /* Convert a b43 antenna number value to the PHY TX control value. */
1436 static u16
b43_antenna_to_phyctl(int antenna
)
1440 return B43_TXH_PHY_ANT0
;
1442 return B43_TXH_PHY_ANT1
;
1444 return B43_TXH_PHY_ANT2
;
1446 return B43_TXH_PHY_ANT3
;
1447 case B43_ANTENNA_AUTO0
:
1448 case B43_ANTENNA_AUTO1
:
1449 return B43_TXH_PHY_ANT01AUTO
;
1455 static void b43_write_beacon_template(struct b43_wldev
*dev
,
1457 u16 shm_size_offset
)
1459 unsigned int i
, len
, variable_len
;
1460 const struct ieee80211_mgmt
*bcn
;
1466 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(dev
->wl
->current_beacon
);
1468 bcn
= (const struct ieee80211_mgmt
*)(dev
->wl
->current_beacon
->data
);
1469 len
= min((size_t) dev
->wl
->current_beacon
->len
,
1470 0x200 - sizeof(struct b43_plcp_hdr6
));
1471 rate
= ieee80211_get_tx_rate(dev
->wl
->hw
, info
)->hw_value
;
1473 b43_write_template_common(dev
, (const u8
*)bcn
,
1474 len
, ram_offset
, shm_size_offset
, rate
);
1476 /* Write the PHY TX control parameters. */
1477 antenna
= B43_ANTENNA_DEFAULT
;
1478 antenna
= b43_antenna_to_phyctl(antenna
);
1479 ctl
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_BEACPHYCTL
);
1480 /* We can't send beacons with short preamble. Would get PHY errors. */
1481 ctl
&= ~B43_TXH_PHY_SHORTPRMBL
;
1482 ctl
&= ~B43_TXH_PHY_ANT
;
1483 ctl
&= ~B43_TXH_PHY_ENC
;
1485 if (b43_is_cck_rate(rate
))
1486 ctl
|= B43_TXH_PHY_ENC_CCK
;
1488 ctl
|= B43_TXH_PHY_ENC_OFDM
;
1489 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_BEACPHYCTL
, ctl
);
1491 /* Find the position of the TIM and the DTIM_period value
1492 * and write them to SHM. */
1493 ie
= bcn
->u
.beacon
.variable
;
1494 variable_len
= len
- offsetof(struct ieee80211_mgmt
, u
.beacon
.variable
);
1495 for (i
= 0; i
< variable_len
- 2; ) {
1496 uint8_t ie_id
, ie_len
;
1503 /* This is the TIM Information Element */
1505 /* Check whether the ie_len is in the beacon data range. */
1506 if (variable_len
< ie_len
+ 2 + i
)
1508 /* A valid TIM is at least 4 bytes long. */
1513 tim_position
= sizeof(struct b43_plcp_hdr6
);
1514 tim_position
+= offsetof(struct ieee80211_mgmt
, u
.beacon
.variable
);
1517 dtim_period
= ie
[i
+ 3];
1519 b43_shm_write16(dev
, B43_SHM_SHARED
,
1520 B43_SHM_SH_TIMBPOS
, tim_position
);
1521 b43_shm_write16(dev
, B43_SHM_SHARED
,
1522 B43_SHM_SH_DTIMPER
, dtim_period
);
1529 * If ucode wants to modify TIM do it behind the beacon, this
1530 * will happen, for example, when doing mesh networking.
1532 b43_shm_write16(dev
, B43_SHM_SHARED
,
1534 len
+ sizeof(struct b43_plcp_hdr6
));
1535 b43_shm_write16(dev
, B43_SHM_SHARED
,
1536 B43_SHM_SH_DTIMPER
, 0);
1538 b43dbg(dev
->wl
, "Updated beacon template at 0x%x\n", ram_offset
);
1541 static void b43_upload_beacon0(struct b43_wldev
*dev
)
1543 struct b43_wl
*wl
= dev
->wl
;
1545 if (wl
->beacon0_uploaded
)
1547 b43_write_beacon_template(dev
, 0x68, 0x18);
1548 wl
->beacon0_uploaded
= 1;
1551 static void b43_upload_beacon1(struct b43_wldev
*dev
)
1553 struct b43_wl
*wl
= dev
->wl
;
1555 if (wl
->beacon1_uploaded
)
1557 b43_write_beacon_template(dev
, 0x468, 0x1A);
1558 wl
->beacon1_uploaded
= 1;
1561 static void handle_irq_beacon(struct b43_wldev
*dev
)
1563 struct b43_wl
*wl
= dev
->wl
;
1564 u32 cmd
, beacon0_valid
, beacon1_valid
;
1566 if (!b43_is_mode(wl
, NL80211_IFTYPE_AP
) &&
1567 !b43_is_mode(wl
, NL80211_IFTYPE_MESH_POINT
))
1570 /* This is the bottom half of the asynchronous beacon update. */
1572 /* Ignore interrupt in the future. */
1573 dev
->irq_mask
&= ~B43_IRQ_BEACON
;
1575 cmd
= b43_read32(dev
, B43_MMIO_MACCMD
);
1576 beacon0_valid
= (cmd
& B43_MACCMD_BEACON0_VALID
);
1577 beacon1_valid
= (cmd
& B43_MACCMD_BEACON1_VALID
);
1579 /* Schedule interrupt manually, if busy. */
1580 if (beacon0_valid
&& beacon1_valid
) {
1581 b43_write32(dev
, B43_MMIO_GEN_IRQ_REASON
, B43_IRQ_BEACON
);
1582 dev
->irq_mask
|= B43_IRQ_BEACON
;
1586 if (unlikely(wl
->beacon_templates_virgin
)) {
1587 /* We never uploaded a beacon before.
1588 * Upload both templates now, but only mark one valid. */
1589 wl
->beacon_templates_virgin
= 0;
1590 b43_upload_beacon0(dev
);
1591 b43_upload_beacon1(dev
);
1592 cmd
= b43_read32(dev
, B43_MMIO_MACCMD
);
1593 cmd
|= B43_MACCMD_BEACON0_VALID
;
1594 b43_write32(dev
, B43_MMIO_MACCMD
, cmd
);
1596 if (!beacon0_valid
) {
1597 b43_upload_beacon0(dev
);
1598 cmd
= b43_read32(dev
, B43_MMIO_MACCMD
);
1599 cmd
|= B43_MACCMD_BEACON0_VALID
;
1600 b43_write32(dev
, B43_MMIO_MACCMD
, cmd
);
1601 } else if (!beacon1_valid
) {
1602 b43_upload_beacon1(dev
);
1603 cmd
= b43_read32(dev
, B43_MMIO_MACCMD
);
1604 cmd
|= B43_MACCMD_BEACON1_VALID
;
1605 b43_write32(dev
, B43_MMIO_MACCMD
, cmd
);
1610 static void b43_do_beacon_update_trigger_work(struct b43_wldev
*dev
)
1612 u32 old_irq_mask
= dev
->irq_mask
;
1614 /* update beacon right away or defer to irq */
1615 handle_irq_beacon(dev
);
1616 if (old_irq_mask
!= dev
->irq_mask
) {
1617 /* The handler updated the IRQ mask. */
1618 B43_WARN_ON(!dev
->irq_mask
);
1619 if (b43_read32(dev
, B43_MMIO_GEN_IRQ_MASK
)) {
1620 b43_write32(dev
, B43_MMIO_GEN_IRQ_MASK
, dev
->irq_mask
);
1622 /* Device interrupts are currently disabled. That means
1623 * we just ran the hardirq handler and scheduled the
1624 * IRQ thread. The thread will write the IRQ mask when
1625 * it finished, so there's nothing to do here. Writing
1626 * the mask _here_ would incorrectly re-enable IRQs. */
1631 static void b43_beacon_update_trigger_work(struct work_struct
*work
)
1633 struct b43_wl
*wl
= container_of(work
, struct b43_wl
,
1634 beacon_update_trigger
);
1635 struct b43_wldev
*dev
;
1637 mutex_lock(&wl
->mutex
);
1638 dev
= wl
->current_dev
;
1639 if (likely(dev
&& (b43_status(dev
) >= B43_STAT_INITIALIZED
))) {
1640 if (dev
->sdev
->bus
->bustype
== SSB_BUSTYPE_SDIO
) {
1641 /* wl->mutex is enough. */
1642 b43_do_beacon_update_trigger_work(dev
);
1645 spin_lock_irq(&wl
->hardirq_lock
);
1646 b43_do_beacon_update_trigger_work(dev
);
1648 spin_unlock_irq(&wl
->hardirq_lock
);
1651 mutex_unlock(&wl
->mutex
);
1654 /* Asynchronously update the packet templates in template RAM.
1655 * Locking: Requires wl->mutex to be locked. */
1656 static void b43_update_templates(struct b43_wl
*wl
)
1658 struct sk_buff
*beacon
;
1660 /* This is the top half of the ansynchronous beacon update.
1661 * The bottom half is the beacon IRQ.
1662 * Beacon update must be asynchronous to avoid sending an
1663 * invalid beacon. This can happen for example, if the firmware
1664 * transmits a beacon while we are updating it. */
1666 /* We could modify the existing beacon and set the aid bit in
1667 * the TIM field, but that would probably require resizing and
1668 * moving of data within the beacon template.
1669 * Simply request a new beacon and let mac80211 do the hard work. */
1670 beacon
= ieee80211_beacon_get(wl
->hw
, wl
->vif
);
1671 if (unlikely(!beacon
))
1674 if (wl
->current_beacon
)
1675 dev_kfree_skb_any(wl
->current_beacon
);
1676 wl
->current_beacon
= beacon
;
1677 wl
->beacon0_uploaded
= 0;
1678 wl
->beacon1_uploaded
= 0;
1679 ieee80211_queue_work(wl
->hw
, &wl
->beacon_update_trigger
);
1682 static void b43_set_beacon_int(struct b43_wldev
*dev
, u16 beacon_int
)
1685 if (dev
->sdev
->id
.revision
>= 3) {
1686 b43_write32(dev
, B43_MMIO_TSF_CFP_REP
, (beacon_int
<< 16));
1687 b43_write32(dev
, B43_MMIO_TSF_CFP_START
, (beacon_int
<< 10));
1689 b43_write16(dev
, 0x606, (beacon_int
>> 6));
1690 b43_write16(dev
, 0x610, beacon_int
);
1692 b43_time_unlock(dev
);
1693 b43dbg(dev
->wl
, "Set beacon interval to %u\n", beacon_int
);
1696 static void b43_handle_firmware_panic(struct b43_wldev
*dev
)
1700 /* Read the register that contains the reason code for the panic. */
1701 reason
= b43_shm_read16(dev
, B43_SHM_SCRATCH
, B43_FWPANIC_REASON_REG
);
1702 b43err(dev
->wl
, "Whoopsy, firmware panic! Reason: %u\n", reason
);
1706 b43dbg(dev
->wl
, "The panic reason is unknown.\n");
1708 case B43_FWPANIC_DIE
:
1709 /* Do not restart the controller or firmware.
1710 * The device is nonfunctional from now on.
1711 * Restarting would result in this panic to trigger again,
1712 * so we avoid that recursion. */
1714 case B43_FWPANIC_RESTART
:
1715 b43_controller_restart(dev
, "Microcode panic");
1720 static void handle_irq_ucode_debug(struct b43_wldev
*dev
)
1722 unsigned int i
, cnt
;
1723 u16 reason
, marker_id
, marker_line
;
1726 /* The proprietary firmware doesn't have this IRQ. */
1727 if (!dev
->fw
.opensource
)
1730 /* Read the register that contains the reason code for this IRQ. */
1731 reason
= b43_shm_read16(dev
, B43_SHM_SCRATCH
, B43_DEBUGIRQ_REASON_REG
);
1734 case B43_DEBUGIRQ_PANIC
:
1735 b43_handle_firmware_panic(dev
);
1737 case B43_DEBUGIRQ_DUMP_SHM
:
1739 break; /* Only with driver debugging enabled. */
1740 buf
= kmalloc(4096, GFP_ATOMIC
);
1742 b43dbg(dev
->wl
, "SHM-dump: Failed to allocate memory\n");
1745 for (i
= 0; i
< 4096; i
+= 2) {
1746 u16 tmp
= b43_shm_read16(dev
, B43_SHM_SHARED
, i
);
1747 buf
[i
/ 2] = cpu_to_le16(tmp
);
1749 b43info(dev
->wl
, "Shared memory dump:\n");
1750 print_hex_dump(KERN_INFO
, "", DUMP_PREFIX_OFFSET
,
1751 16, 2, buf
, 4096, 1);
1754 case B43_DEBUGIRQ_DUMP_REGS
:
1756 break; /* Only with driver debugging enabled. */
1757 b43info(dev
->wl
, "Microcode register dump:\n");
1758 for (i
= 0, cnt
= 0; i
< 64; i
++) {
1759 u16 tmp
= b43_shm_read16(dev
, B43_SHM_SCRATCH
, i
);
1762 printk("r%02u: 0x%04X ", i
, tmp
);
1771 case B43_DEBUGIRQ_MARKER
:
1773 break; /* Only with driver debugging enabled. */
1774 marker_id
= b43_shm_read16(dev
, B43_SHM_SCRATCH
,
1776 marker_line
= b43_shm_read16(dev
, B43_SHM_SCRATCH
,
1777 B43_MARKER_LINE_REG
);
1778 b43info(dev
->wl
, "The firmware just executed the MARKER(%u) "
1779 "at line number %u\n",
1780 marker_id
, marker_line
);
1783 b43dbg(dev
->wl
, "Debug-IRQ triggered for unknown reason: %u\n",
1787 /* Acknowledge the debug-IRQ, so the firmware can continue. */
1788 b43_shm_write16(dev
, B43_SHM_SCRATCH
,
1789 B43_DEBUGIRQ_REASON_REG
, B43_DEBUGIRQ_ACK
);
1792 static void b43_do_interrupt_thread(struct b43_wldev
*dev
)
1795 u32 dma_reason
[ARRAY_SIZE(dev
->dma_reason
)];
1796 u32 merged_dma_reason
= 0;
1799 if (unlikely(b43_status(dev
) != B43_STAT_STARTED
))
1802 reason
= dev
->irq_reason
;
1803 for (i
= 0; i
< ARRAY_SIZE(dma_reason
); i
++) {
1804 dma_reason
[i
] = dev
->dma_reason
[i
];
1805 merged_dma_reason
|= dma_reason
[i
];
1808 if (unlikely(reason
& B43_IRQ_MAC_TXERR
))
1809 b43err(dev
->wl
, "MAC transmission error\n");
1811 if (unlikely(reason
& B43_IRQ_PHY_TXERR
)) {
1812 b43err(dev
->wl
, "PHY transmission error\n");
1814 if (unlikely(atomic_dec_and_test(&dev
->phy
.txerr_cnt
))) {
1815 atomic_set(&dev
->phy
.txerr_cnt
,
1816 B43_PHY_TX_BADNESS_LIMIT
);
1817 b43err(dev
->wl
, "Too many PHY TX errors, "
1818 "restarting the controller\n");
1819 b43_controller_restart(dev
, "PHY TX errors");
1823 if (unlikely(merged_dma_reason
& (B43_DMAIRQ_FATALMASK
|
1824 B43_DMAIRQ_NONFATALMASK
))) {
1825 if (merged_dma_reason
& B43_DMAIRQ_FATALMASK
) {
1826 b43err(dev
->wl
, "Fatal DMA error: "
1827 "0x%08X, 0x%08X, 0x%08X, "
1828 "0x%08X, 0x%08X, 0x%08X\n",
1829 dma_reason
[0], dma_reason
[1],
1830 dma_reason
[2], dma_reason
[3],
1831 dma_reason
[4], dma_reason
[5]);
1832 b43err(dev
->wl
, "This device does not support DMA "
1833 "on your system. It will now be switched to PIO.\n");
1834 /* Fall back to PIO transfers if we get fatal DMA errors! */
1836 b43_controller_restart(dev
, "DMA error");
1839 if (merged_dma_reason
& B43_DMAIRQ_NONFATALMASK
) {
1840 b43err(dev
->wl
, "DMA error: "
1841 "0x%08X, 0x%08X, 0x%08X, "
1842 "0x%08X, 0x%08X, 0x%08X\n",
1843 dma_reason
[0], dma_reason
[1],
1844 dma_reason
[2], dma_reason
[3],
1845 dma_reason
[4], dma_reason
[5]);
1849 if (unlikely(reason
& B43_IRQ_UCODE_DEBUG
))
1850 handle_irq_ucode_debug(dev
);
1851 if (reason
& B43_IRQ_TBTT_INDI
)
1852 handle_irq_tbtt_indication(dev
);
1853 if (reason
& B43_IRQ_ATIM_END
)
1854 handle_irq_atim_end(dev
);
1855 if (reason
& B43_IRQ_BEACON
)
1856 handle_irq_beacon(dev
);
1857 if (reason
& B43_IRQ_PMQ
)
1858 handle_irq_pmq(dev
);
1859 if (reason
& B43_IRQ_TXFIFO_FLUSH_OK
)
1861 if (reason
& B43_IRQ_NOISESAMPLE_OK
)
1862 handle_irq_noise(dev
);
1864 /* Check the DMA reason registers for received data. */
1865 if (dma_reason
[0] & B43_DMAIRQ_RX_DONE
) {
1866 if (b43_using_pio_transfers(dev
))
1867 b43_pio_rx(dev
->pio
.rx_queue
);
1869 b43_dma_rx(dev
->dma
.rx_ring
);
1871 B43_WARN_ON(dma_reason
[1] & B43_DMAIRQ_RX_DONE
);
1872 B43_WARN_ON(dma_reason
[2] & B43_DMAIRQ_RX_DONE
);
1873 B43_WARN_ON(dma_reason
[3] & B43_DMAIRQ_RX_DONE
);
1874 B43_WARN_ON(dma_reason
[4] & B43_DMAIRQ_RX_DONE
);
1875 B43_WARN_ON(dma_reason
[5] & B43_DMAIRQ_RX_DONE
);
1877 if (reason
& B43_IRQ_TX_OK
)
1878 handle_irq_transmit_status(dev
);
1880 /* Re-enable interrupts on the device by restoring the current interrupt mask. */
1881 b43_write32(dev
, B43_MMIO_GEN_IRQ_MASK
, dev
->irq_mask
);
1884 if (b43_debug(dev
, B43_DBG_VERBOSESTATS
)) {
1886 for (i
= 0; i
< ARRAY_SIZE(dev
->irq_bit_count
); i
++) {
1887 if (reason
& (1 << i
))
1888 dev
->irq_bit_count
[i
]++;
1894 /* Interrupt thread handler. Handles device interrupts in thread context. */
1895 static irqreturn_t
b43_interrupt_thread_handler(int irq
, void *dev_id
)
1897 struct b43_wldev
*dev
= dev_id
;
1899 mutex_lock(&dev
->wl
->mutex
);
1900 b43_do_interrupt_thread(dev
);
1902 mutex_unlock(&dev
->wl
->mutex
);
1907 static irqreturn_t
b43_do_interrupt(struct b43_wldev
*dev
)
1911 /* This code runs under wl->hardirq_lock, but _only_ on non-SDIO busses.
1912 * On SDIO, this runs under wl->mutex. */
1914 reason
= b43_read32(dev
, B43_MMIO_GEN_IRQ_REASON
);
1915 if (reason
== 0xffffffff) /* shared IRQ */
1917 reason
&= dev
->irq_mask
;
1921 dev
->dma_reason
[0] = b43_read32(dev
, B43_MMIO_DMA0_REASON
)
1923 dev
->dma_reason
[1] = b43_read32(dev
, B43_MMIO_DMA1_REASON
)
1925 dev
->dma_reason
[2] = b43_read32(dev
, B43_MMIO_DMA2_REASON
)
1927 dev
->dma_reason
[3] = b43_read32(dev
, B43_MMIO_DMA3_REASON
)
1929 dev
->dma_reason
[4] = b43_read32(dev
, B43_MMIO_DMA4_REASON
)
1932 dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON)
1936 /* ACK the interrupt. */
1937 b43_write32(dev
, B43_MMIO_GEN_IRQ_REASON
, reason
);
1938 b43_write32(dev
, B43_MMIO_DMA0_REASON
, dev
->dma_reason
[0]);
1939 b43_write32(dev
, B43_MMIO_DMA1_REASON
, dev
->dma_reason
[1]);
1940 b43_write32(dev
, B43_MMIO_DMA2_REASON
, dev
->dma_reason
[2]);
1941 b43_write32(dev
, B43_MMIO_DMA3_REASON
, dev
->dma_reason
[3]);
1942 b43_write32(dev
, B43_MMIO_DMA4_REASON
, dev
->dma_reason
[4]);
1944 b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]);
1947 /* Disable IRQs on the device. The IRQ thread handler will re-enable them. */
1948 b43_write32(dev
, B43_MMIO_GEN_IRQ_MASK
, 0);
1949 /* Save the reason bitmasks for the IRQ thread handler. */
1950 dev
->irq_reason
= reason
;
1952 return IRQ_WAKE_THREAD
;
1955 /* Interrupt handler top-half. This runs with interrupts disabled. */
1956 static irqreturn_t
b43_interrupt_handler(int irq
, void *dev_id
)
1958 struct b43_wldev
*dev
= dev_id
;
1961 if (unlikely(b43_status(dev
) < B43_STAT_STARTED
))
1964 spin_lock(&dev
->wl
->hardirq_lock
);
1965 ret
= b43_do_interrupt(dev
);
1967 spin_unlock(&dev
->wl
->hardirq_lock
);
1972 /* SDIO interrupt handler. This runs in process context. */
1973 static void b43_sdio_interrupt_handler(struct b43_wldev
*dev
)
1975 struct b43_wl
*wl
= dev
->wl
;
1978 mutex_lock(&wl
->mutex
);
1980 ret
= b43_do_interrupt(dev
);
1981 if (ret
== IRQ_WAKE_THREAD
)
1982 b43_do_interrupt_thread(dev
);
1984 mutex_unlock(&wl
->mutex
);
1987 void b43_do_release_fw(struct b43_firmware_file
*fw
)
1989 release_firmware(fw
->data
);
1991 fw
->filename
= NULL
;
1994 static void b43_release_firmware(struct b43_wldev
*dev
)
1996 b43_do_release_fw(&dev
->fw
.ucode
);
1997 b43_do_release_fw(&dev
->fw
.pcm
);
1998 b43_do_release_fw(&dev
->fw
.initvals
);
1999 b43_do_release_fw(&dev
->fw
.initvals_band
);
2002 static void b43_print_fw_helptext(struct b43_wl
*wl
, bool error
)
2006 "http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware " \
2007 "and download the correct firmware for this driver version. " \
2008 "Please carefully read all instructions on this website.\n";
2016 int b43_do_request_fw(struct b43_request_fw_context
*ctx
,
2018 struct b43_firmware_file
*fw
)
2020 const struct firmware
*blob
;
2021 struct b43_fw_header
*hdr
;
2026 /* Don't fetch anything. Free possibly cached firmware. */
2027 /* FIXME: We should probably keep it anyway, to save some headache
2028 * on suspend/resume with multiband devices. */
2029 b43_do_release_fw(fw
);
2033 if ((fw
->type
== ctx
->req_type
) &&
2034 (strcmp(fw
->filename
, name
) == 0))
2035 return 0; /* Already have this fw. */
2036 /* Free the cached firmware first. */
2037 /* FIXME: We should probably do this later after we successfully
2038 * got the new fw. This could reduce headache with multiband devices.
2039 * We could also redesign this to cache the firmware for all possible
2040 * bands all the time. */
2041 b43_do_release_fw(fw
);
2044 switch (ctx
->req_type
) {
2045 case B43_FWTYPE_PROPRIETARY
:
2046 snprintf(ctx
->fwname
, sizeof(ctx
->fwname
),
2048 modparam_fwpostfix
, name
);
2050 case B43_FWTYPE_OPENSOURCE
:
2051 snprintf(ctx
->fwname
, sizeof(ctx
->fwname
),
2053 modparam_fwpostfix
, name
);
2059 err
= request_firmware(&blob
, ctx
->fwname
, ctx
->dev
->sdev
->dev
);
2060 if (err
== -ENOENT
) {
2061 snprintf(ctx
->errors
[ctx
->req_type
],
2062 sizeof(ctx
->errors
[ctx
->req_type
]),
2063 "Firmware file \"%s\" not found\n", ctx
->fwname
);
2066 snprintf(ctx
->errors
[ctx
->req_type
],
2067 sizeof(ctx
->errors
[ctx
->req_type
]),
2068 "Firmware file \"%s\" request failed (err=%d)\n",
2072 if (blob
->size
< sizeof(struct b43_fw_header
))
2074 hdr
= (struct b43_fw_header
*)(blob
->data
);
2075 switch (hdr
->type
) {
2076 case B43_FW_TYPE_UCODE
:
2077 case B43_FW_TYPE_PCM
:
2078 size
= be32_to_cpu(hdr
->size
);
2079 if (size
!= blob
->size
- sizeof(struct b43_fw_header
))
2082 case B43_FW_TYPE_IV
:
2091 fw
->filename
= name
;
2092 fw
->type
= ctx
->req_type
;
2097 snprintf(ctx
->errors
[ctx
->req_type
],
2098 sizeof(ctx
->errors
[ctx
->req_type
]),
2099 "Firmware file \"%s\" format error.\n", ctx
->fwname
);
2100 release_firmware(blob
);
2105 static int b43_try_request_fw(struct b43_request_fw_context
*ctx
)
2107 struct b43_wldev
*dev
= ctx
->dev
;
2108 struct b43_firmware
*fw
= &ctx
->dev
->fw
;
2109 const u8 rev
= ctx
->dev
->sdev
->id
.revision
;
2110 const char *filename
;
2115 tmshigh
= ssb_read32(dev
->sdev
, SSB_TMSHIGH
);
2116 if ((rev
>= 5) && (rev
<= 10))
2117 filename
= "ucode5";
2118 else if ((rev
>= 11) && (rev
<= 12))
2119 filename
= "ucode11";
2121 filename
= "ucode13";
2123 filename
= "ucode14";
2125 filename
= "ucode15";
2126 else if ((rev
>= 16) && (rev
<= 20))
2127 filename
= "ucode16_mimo";
2130 err
= b43_do_request_fw(ctx
, filename
, &fw
->ucode
);
2135 if ((rev
>= 5) && (rev
<= 10))
2141 fw
->pcm_request_failed
= 0;
2142 err
= b43_do_request_fw(ctx
, filename
, &fw
->pcm
);
2143 if (err
== -ENOENT
) {
2144 /* We did not find a PCM file? Not fatal, but
2145 * core rev <= 10 must do without hwcrypto then. */
2146 fw
->pcm_request_failed
= 1;
2151 switch (dev
->phy
.type
) {
2153 if ((rev
>= 5) && (rev
<= 10)) {
2154 if (tmshigh
& B43_TMSHIGH_HAVE_2GHZ_PHY
)
2155 filename
= "a0g1initvals5";
2157 filename
= "a0g0initvals5";
2159 goto err_no_initvals
;
2162 if ((rev
>= 5) && (rev
<= 10))
2163 filename
= "b0g0initvals5";
2165 filename
= "b0g0initvals13";
2167 goto err_no_initvals
;
2171 filename
= "n0initvals16";
2172 else if ((rev
>= 11) && (rev
<= 12))
2173 filename
= "n0initvals11";
2175 goto err_no_initvals
;
2177 case B43_PHYTYPE_LP
:
2179 filename
= "lp0initvals13";
2181 filename
= "lp0initvals14";
2183 filename
= "lp0initvals15";
2185 goto err_no_initvals
;
2188 goto err_no_initvals
;
2190 err
= b43_do_request_fw(ctx
, filename
, &fw
->initvals
);
2194 /* Get bandswitch initvals */
2195 switch (dev
->phy
.type
) {
2197 if ((rev
>= 5) && (rev
<= 10)) {
2198 if (tmshigh
& B43_TMSHIGH_HAVE_2GHZ_PHY
)
2199 filename
= "a0g1bsinitvals5";
2201 filename
= "a0g0bsinitvals5";
2202 } else if (rev
>= 11)
2205 goto err_no_initvals
;
2208 if ((rev
>= 5) && (rev
<= 10))
2209 filename
= "b0g0bsinitvals5";
2213 goto err_no_initvals
;
2217 filename
= "n0bsinitvals16";
2218 else if ((rev
>= 11) && (rev
<= 12))
2219 filename
= "n0bsinitvals11";
2221 goto err_no_initvals
;
2223 case B43_PHYTYPE_LP
:
2225 filename
= "lp0bsinitvals13";
2227 filename
= "lp0bsinitvals14";
2229 filename
= "lp0bsinitvals15";
2231 goto err_no_initvals
;
2234 goto err_no_initvals
;
2236 err
= b43_do_request_fw(ctx
, filename
, &fw
->initvals_band
);
2243 err
= ctx
->fatal_failure
= -EOPNOTSUPP
;
2244 b43err(dev
->wl
, "The driver does not know which firmware (ucode) "
2245 "is required for your device (wl-core rev %u)\n", rev
);
2249 err
= ctx
->fatal_failure
= -EOPNOTSUPP
;
2250 b43err(dev
->wl
, "The driver does not know which firmware (PCM) "
2251 "is required for your device (wl-core rev %u)\n", rev
);
2255 err
= ctx
->fatal_failure
= -EOPNOTSUPP
;
2256 b43err(dev
->wl
, "The driver does not know which firmware (initvals) "
2257 "is required for your device (wl-core rev %u)\n", rev
);
2261 /* We failed to load this firmware image. The error message
2262 * already is in ctx->errors. Return and let our caller decide
2267 b43_release_firmware(dev
);
2271 static int b43_request_firmware(struct b43_wldev
*dev
)
2273 struct b43_request_fw_context
*ctx
;
2278 ctx
= kzalloc(sizeof(*ctx
), GFP_KERNEL
);
2283 ctx
->req_type
= B43_FWTYPE_PROPRIETARY
;
2284 err
= b43_try_request_fw(ctx
);
2286 goto out
; /* Successfully loaded it. */
2287 err
= ctx
->fatal_failure
;
2291 ctx
->req_type
= B43_FWTYPE_OPENSOURCE
;
2292 err
= b43_try_request_fw(ctx
);
2294 goto out
; /* Successfully loaded it. */
2295 err
= ctx
->fatal_failure
;
2299 /* Could not find a usable firmware. Print the errors. */
2300 for (i
= 0; i
< B43_NR_FWTYPES
; i
++) {
2301 errmsg
= ctx
->errors
[i
];
2303 b43err(dev
->wl
, errmsg
);
2305 b43_print_fw_helptext(dev
->wl
, 1);
2313 static int b43_upload_microcode(struct b43_wldev
*dev
)
2315 struct wiphy
*wiphy
= dev
->wl
->hw
->wiphy
;
2316 const size_t hdr_len
= sizeof(struct b43_fw_header
);
2318 unsigned int i
, len
;
2319 u16 fwrev
, fwpatch
, fwdate
, fwtime
;
2323 /* Jump the microcode PSM to offset 0 */
2324 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
2325 B43_WARN_ON(macctl
& B43_MACCTL_PSM_RUN
);
2326 macctl
|= B43_MACCTL_PSM_JMP0
;
2327 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
2328 /* Zero out all microcode PSM registers and shared memory. */
2329 for (i
= 0; i
< 64; i
++)
2330 b43_shm_write16(dev
, B43_SHM_SCRATCH
, i
, 0);
2331 for (i
= 0; i
< 4096; i
+= 2)
2332 b43_shm_write16(dev
, B43_SHM_SHARED
, i
, 0);
2334 /* Upload Microcode. */
2335 data
= (__be32
*) (dev
->fw
.ucode
.data
->data
+ hdr_len
);
2336 len
= (dev
->fw
.ucode
.data
->size
- hdr_len
) / sizeof(__be32
);
2337 b43_shm_control_word(dev
, B43_SHM_UCODE
| B43_SHM_AUTOINC_W
, 0x0000);
2338 for (i
= 0; i
< len
; i
++) {
2339 b43_write32(dev
, B43_MMIO_SHM_DATA
, be32_to_cpu(data
[i
]));
2343 if (dev
->fw
.pcm
.data
) {
2344 /* Upload PCM data. */
2345 data
= (__be32
*) (dev
->fw
.pcm
.data
->data
+ hdr_len
);
2346 len
= (dev
->fw
.pcm
.data
->size
- hdr_len
) / sizeof(__be32
);
2347 b43_shm_control_word(dev
, B43_SHM_HW
, 0x01EA);
2348 b43_write32(dev
, B43_MMIO_SHM_DATA
, 0x00004000);
2349 /* No need for autoinc bit in SHM_HW */
2350 b43_shm_control_word(dev
, B43_SHM_HW
, 0x01EB);
2351 for (i
= 0; i
< len
; i
++) {
2352 b43_write32(dev
, B43_MMIO_SHM_DATA
, be32_to_cpu(data
[i
]));
2357 b43_write32(dev
, B43_MMIO_GEN_IRQ_REASON
, B43_IRQ_ALL
);
2359 /* Start the microcode PSM */
2360 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
2361 macctl
&= ~B43_MACCTL_PSM_JMP0
;
2362 macctl
|= B43_MACCTL_PSM_RUN
;
2363 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
2365 /* Wait for the microcode to load and respond */
2368 tmp
= b43_read32(dev
, B43_MMIO_GEN_IRQ_REASON
);
2369 if (tmp
== B43_IRQ_MAC_SUSPENDED
)
2373 b43err(dev
->wl
, "Microcode not responding\n");
2374 b43_print_fw_helptext(dev
->wl
, 1);
2380 b43_read32(dev
, B43_MMIO_GEN_IRQ_REASON
); /* dummy read */
2382 /* Get and check the revisions. */
2383 fwrev
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_UCODEREV
);
2384 fwpatch
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_UCODEPATCH
);
2385 fwdate
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_UCODEDATE
);
2386 fwtime
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_UCODETIME
);
2388 if (fwrev
<= 0x128) {
2389 b43err(dev
->wl
, "YOUR FIRMWARE IS TOO OLD. Firmware from "
2390 "binary drivers older than version 4.x is unsupported. "
2391 "You must upgrade your firmware files.\n");
2392 b43_print_fw_helptext(dev
->wl
, 1);
2396 dev
->fw
.rev
= fwrev
;
2397 dev
->fw
.patch
= fwpatch
;
2398 dev
->fw
.opensource
= (fwdate
== 0xFFFF);
2400 /* Default to use-all-queues. */
2401 dev
->wl
->hw
->queues
= dev
->wl
->mac80211_initially_registered_queues
;
2402 dev
->qos_enabled
= !!modparam_qos
;
2403 /* Default to firmware/hardware crypto acceleration. */
2404 dev
->hwcrypto_enabled
= 1;
2406 if (dev
->fw
.opensource
) {
2409 /* Patchlevel info is encoded in the "time" field. */
2410 dev
->fw
.patch
= fwtime
;
2411 b43info(dev
->wl
, "Loading OpenSource firmware version %u.%u\n",
2412 dev
->fw
.rev
, dev
->fw
.patch
);
2414 fwcapa
= b43_fwcapa_read(dev
);
2415 if (!(fwcapa
& B43_FWCAPA_HWCRYPTO
) || dev
->fw
.pcm_request_failed
) {
2416 b43info(dev
->wl
, "Hardware crypto acceleration not supported by firmware\n");
2417 /* Disable hardware crypto and fall back to software crypto. */
2418 dev
->hwcrypto_enabled
= 0;
2420 if (!(fwcapa
& B43_FWCAPA_QOS
)) {
2421 b43info(dev
->wl
, "QoS not supported by firmware\n");
2422 /* Disable QoS. Tweak hw->queues to 1. It will be restored before
2423 * ieee80211_unregister to make sure the networking core can
2424 * properly free possible resources. */
2425 dev
->wl
->hw
->queues
= 1;
2426 dev
->qos_enabled
= 0;
2429 b43info(dev
->wl
, "Loading firmware version %u.%u "
2430 "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n",
2432 (fwdate
>> 12) & 0xF, (fwdate
>> 8) & 0xF, fwdate
& 0xFF,
2433 (fwtime
>> 11) & 0x1F, (fwtime
>> 5) & 0x3F, fwtime
& 0x1F);
2434 if (dev
->fw
.pcm_request_failed
) {
2435 b43warn(dev
->wl
, "No \"pcm5.fw\" firmware file found. "
2436 "Hardware accelerated cryptography is disabled.\n");
2437 b43_print_fw_helptext(dev
->wl
, 0);
2441 snprintf(wiphy
->fw_version
, sizeof(wiphy
->fw_version
), "%u.%u",
2442 dev
->fw
.rev
, dev
->fw
.patch
);
2443 wiphy
->hw_version
= dev
->sdev
->id
.coreid
;
2445 if (b43_is_old_txhdr_format(dev
)) {
2446 /* We're over the deadline, but we keep support for old fw
2447 * until it turns out to be in major conflict with something new. */
2448 b43warn(dev
->wl
, "You are using an old firmware image. "
2449 "Support for old firmware will be removed soon "
2450 "(official deadline was July 2008).\n");
2451 b43_print_fw_helptext(dev
->wl
, 0);
2457 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
2458 macctl
&= ~B43_MACCTL_PSM_RUN
;
2459 macctl
|= B43_MACCTL_PSM_JMP0
;
2460 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
2465 static int b43_write_initvals(struct b43_wldev
*dev
,
2466 const struct b43_iv
*ivals
,
2470 const struct b43_iv
*iv
;
2475 BUILD_BUG_ON(sizeof(struct b43_iv
) != 6);
2477 for (i
= 0; i
< count
; i
++) {
2478 if (array_size
< sizeof(iv
->offset_size
))
2480 array_size
-= sizeof(iv
->offset_size
);
2481 offset
= be16_to_cpu(iv
->offset_size
);
2482 bit32
= !!(offset
& B43_IV_32BIT
);
2483 offset
&= B43_IV_OFFSET_MASK
;
2484 if (offset
>= 0x1000)
2489 if (array_size
< sizeof(iv
->data
.d32
))
2491 array_size
-= sizeof(iv
->data
.d32
);
2493 value
= get_unaligned_be32(&iv
->data
.d32
);
2494 b43_write32(dev
, offset
, value
);
2496 iv
= (const struct b43_iv
*)((const uint8_t *)iv
+
2502 if (array_size
< sizeof(iv
->data
.d16
))
2504 array_size
-= sizeof(iv
->data
.d16
);
2506 value
= be16_to_cpu(iv
->data
.d16
);
2507 b43_write16(dev
, offset
, value
);
2509 iv
= (const struct b43_iv
*)((const uint8_t *)iv
+
2520 b43err(dev
->wl
, "Initial Values Firmware file-format error.\n");
2521 b43_print_fw_helptext(dev
->wl
, 1);
2526 static int b43_upload_initvals(struct b43_wldev
*dev
)
2528 const size_t hdr_len
= sizeof(struct b43_fw_header
);
2529 const struct b43_fw_header
*hdr
;
2530 struct b43_firmware
*fw
= &dev
->fw
;
2531 const struct b43_iv
*ivals
;
2535 hdr
= (const struct b43_fw_header
*)(fw
->initvals
.data
->data
);
2536 ivals
= (const struct b43_iv
*)(fw
->initvals
.data
->data
+ hdr_len
);
2537 count
= be32_to_cpu(hdr
->size
);
2538 err
= b43_write_initvals(dev
, ivals
, count
,
2539 fw
->initvals
.data
->size
- hdr_len
);
2542 if (fw
->initvals_band
.data
) {
2543 hdr
= (const struct b43_fw_header
*)(fw
->initvals_band
.data
->data
);
2544 ivals
= (const struct b43_iv
*)(fw
->initvals_band
.data
->data
+ hdr_len
);
2545 count
= be32_to_cpu(hdr
->size
);
2546 err
= b43_write_initvals(dev
, ivals
, count
,
2547 fw
->initvals_band
.data
->size
- hdr_len
);
2556 /* Initialize the GPIOs
2557 * http://bcm-specs.sipsolutions.net/GPIO
2559 static int b43_gpio_init(struct b43_wldev
*dev
)
2561 struct ssb_bus
*bus
= dev
->sdev
->bus
;
2562 struct ssb_device
*gpiodev
, *pcidev
= NULL
;
2565 b43_write32(dev
, B43_MMIO_MACCTL
, b43_read32(dev
, B43_MMIO_MACCTL
)
2566 & ~B43_MACCTL_GPOUTSMSK
);
2568 b43_write16(dev
, B43_MMIO_GPIO_MASK
, b43_read16(dev
, B43_MMIO_GPIO_MASK
)
2573 if (dev
->sdev
->bus
->chip_id
== 0x4301) {
2577 if (0 /* FIXME: conditional unknown */ ) {
2578 b43_write16(dev
, B43_MMIO_GPIO_MASK
,
2579 b43_read16(dev
, B43_MMIO_GPIO_MASK
)
2584 if (dev
->sdev
->bus
->sprom
.boardflags_lo
& B43_BFL_PACTRL
) {
2585 b43_write16(dev
, B43_MMIO_GPIO_MASK
,
2586 b43_read16(dev
, B43_MMIO_GPIO_MASK
)
2591 if (dev
->sdev
->id
.revision
>= 2)
2592 mask
|= 0x0010; /* FIXME: This is redundant. */
2594 #ifdef CONFIG_SSB_DRIVER_PCICORE
2595 pcidev
= bus
->pcicore
.dev
;
2597 gpiodev
= bus
->chipco
.dev
? : pcidev
;
2600 ssb_write32(gpiodev
, B43_GPIO_CONTROL
,
2601 (ssb_read32(gpiodev
, B43_GPIO_CONTROL
)
2607 /* Turn off all GPIO stuff. Call this on module unload, for example. */
2608 static void b43_gpio_cleanup(struct b43_wldev
*dev
)
2610 struct ssb_bus
*bus
= dev
->sdev
->bus
;
2611 struct ssb_device
*gpiodev
, *pcidev
= NULL
;
2613 #ifdef CONFIG_SSB_DRIVER_PCICORE
2614 pcidev
= bus
->pcicore
.dev
;
2616 gpiodev
= bus
->chipco
.dev
? : pcidev
;
2619 ssb_write32(gpiodev
, B43_GPIO_CONTROL
, 0);
2622 /* http://bcm-specs.sipsolutions.net/EnableMac */
2623 void b43_mac_enable(struct b43_wldev
*dev
)
2625 if (b43_debug(dev
, B43_DBG_FIRMWARE
)) {
2628 fwstate
= b43_shm_read16(dev
, B43_SHM_SHARED
,
2629 B43_SHM_SH_UCODESTAT
);
2630 if ((fwstate
!= B43_SHM_SH_UCODESTAT_SUSP
) &&
2631 (fwstate
!= B43_SHM_SH_UCODESTAT_SLEEP
)) {
2632 b43err(dev
->wl
, "b43_mac_enable(): The firmware "
2633 "should be suspended, but current state is %u\n",
2638 dev
->mac_suspended
--;
2639 B43_WARN_ON(dev
->mac_suspended
< 0);
2640 if (dev
->mac_suspended
== 0) {
2641 b43_write32(dev
, B43_MMIO_MACCTL
,
2642 b43_read32(dev
, B43_MMIO_MACCTL
)
2643 | B43_MACCTL_ENABLED
);
2644 b43_write32(dev
, B43_MMIO_GEN_IRQ_REASON
,
2645 B43_IRQ_MAC_SUSPENDED
);
2647 b43_read32(dev
, B43_MMIO_MACCTL
);
2648 b43_read32(dev
, B43_MMIO_GEN_IRQ_REASON
);
2649 b43_power_saving_ctl_bits(dev
, 0);
2653 /* http://bcm-specs.sipsolutions.net/SuspendMAC */
2654 void b43_mac_suspend(struct b43_wldev
*dev
)
2660 B43_WARN_ON(dev
->mac_suspended
< 0);
2662 if (dev
->mac_suspended
== 0) {
2663 b43_power_saving_ctl_bits(dev
, B43_PS_AWAKE
);
2664 b43_write32(dev
, B43_MMIO_MACCTL
,
2665 b43_read32(dev
, B43_MMIO_MACCTL
)
2666 & ~B43_MACCTL_ENABLED
);
2667 /* force pci to flush the write */
2668 b43_read32(dev
, B43_MMIO_MACCTL
);
2669 for (i
= 35; i
; i
--) {
2670 tmp
= b43_read32(dev
, B43_MMIO_GEN_IRQ_REASON
);
2671 if (tmp
& B43_IRQ_MAC_SUSPENDED
)
2675 /* Hm, it seems this will take some time. Use msleep(). */
2676 for (i
= 40; i
; i
--) {
2677 tmp
= b43_read32(dev
, B43_MMIO_GEN_IRQ_REASON
);
2678 if (tmp
& B43_IRQ_MAC_SUSPENDED
)
2682 b43err(dev
->wl
, "MAC suspend failed\n");
2685 dev
->mac_suspended
++;
2688 /* http://bcm-v4.sipsolutions.net/802.11/PHY/N/MacPhyClkSet */
2689 void b43_mac_phy_clock_set(struct b43_wldev
*dev
, bool on
)
2691 u32 tmslow
= ssb_read32(dev
->sdev
, SSB_TMSLOW
);
2693 tmslow
|= B43_TMSLOW_MACPHYCLKEN
;
2695 tmslow
&= ~B43_TMSLOW_MACPHYCLKEN
;
2696 ssb_write32(dev
->sdev
, SSB_TMSLOW
, tmslow
);
2699 static void b43_adjust_opmode(struct b43_wldev
*dev
)
2701 struct b43_wl
*wl
= dev
->wl
;
2705 ctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
2706 /* Reset status to STA infrastructure mode. */
2707 ctl
&= ~B43_MACCTL_AP
;
2708 ctl
&= ~B43_MACCTL_KEEP_CTL
;
2709 ctl
&= ~B43_MACCTL_KEEP_BADPLCP
;
2710 ctl
&= ~B43_MACCTL_KEEP_BAD
;
2711 ctl
&= ~B43_MACCTL_PROMISC
;
2712 ctl
&= ~B43_MACCTL_BEACPROMISC
;
2713 ctl
|= B43_MACCTL_INFRA
;
2715 if (b43_is_mode(wl
, NL80211_IFTYPE_AP
) ||
2716 b43_is_mode(wl
, NL80211_IFTYPE_MESH_POINT
))
2717 ctl
|= B43_MACCTL_AP
;
2718 else if (b43_is_mode(wl
, NL80211_IFTYPE_ADHOC
))
2719 ctl
&= ~B43_MACCTL_INFRA
;
2721 if (wl
->filter_flags
& FIF_CONTROL
)
2722 ctl
|= B43_MACCTL_KEEP_CTL
;
2723 if (wl
->filter_flags
& FIF_FCSFAIL
)
2724 ctl
|= B43_MACCTL_KEEP_BAD
;
2725 if (wl
->filter_flags
& FIF_PLCPFAIL
)
2726 ctl
|= B43_MACCTL_KEEP_BADPLCP
;
2727 if (wl
->filter_flags
& FIF_PROMISC_IN_BSS
)
2728 ctl
|= B43_MACCTL_PROMISC
;
2729 if (wl
->filter_flags
& FIF_BCN_PRBRESP_PROMISC
)
2730 ctl
|= B43_MACCTL_BEACPROMISC
;
2732 /* Workaround: On old hardware the HW-MAC-address-filter
2733 * doesn't work properly, so always run promisc in filter
2734 * it in software. */
2735 if (dev
->sdev
->id
.revision
<= 4)
2736 ctl
|= B43_MACCTL_PROMISC
;
2738 b43_write32(dev
, B43_MMIO_MACCTL
, ctl
);
2741 if ((ctl
& B43_MACCTL_INFRA
) && !(ctl
& B43_MACCTL_AP
)) {
2742 if (dev
->sdev
->bus
->chip_id
== 0x4306 &&
2743 dev
->sdev
->bus
->chip_rev
== 3)
2748 b43_write16(dev
, 0x612, cfp_pretbtt
);
2750 /* FIXME: We don't currently implement the PMQ mechanism,
2751 * so always disable it. If we want to implement PMQ,
2752 * we need to enable it here (clear DISCPMQ) in AP mode.
2754 if (0 /* ctl & B43_MACCTL_AP */) {
2755 b43_write32(dev
, B43_MMIO_MACCTL
,
2756 b43_read32(dev
, B43_MMIO_MACCTL
)
2757 & ~B43_MACCTL_DISCPMQ
);
2759 b43_write32(dev
, B43_MMIO_MACCTL
,
2760 b43_read32(dev
, B43_MMIO_MACCTL
)
2761 | B43_MACCTL_DISCPMQ
);
2765 static void b43_rate_memory_write(struct b43_wldev
*dev
, u16 rate
, int is_ofdm
)
2771 offset
+= (b43_plcp_get_ratecode_ofdm(rate
) & 0x000F) * 2;
2774 offset
+= (b43_plcp_get_ratecode_cck(rate
) & 0x000F) * 2;
2776 b43_shm_write16(dev
, B43_SHM_SHARED
, offset
+ 0x20,
2777 b43_shm_read16(dev
, B43_SHM_SHARED
, offset
));
2780 static void b43_rate_memory_init(struct b43_wldev
*dev
)
2782 switch (dev
->phy
.type
) {
2786 case B43_PHYTYPE_LP
:
2787 b43_rate_memory_write(dev
, B43_OFDM_RATE_6MB
, 1);
2788 b43_rate_memory_write(dev
, B43_OFDM_RATE_12MB
, 1);
2789 b43_rate_memory_write(dev
, B43_OFDM_RATE_18MB
, 1);
2790 b43_rate_memory_write(dev
, B43_OFDM_RATE_24MB
, 1);
2791 b43_rate_memory_write(dev
, B43_OFDM_RATE_36MB
, 1);
2792 b43_rate_memory_write(dev
, B43_OFDM_RATE_48MB
, 1);
2793 b43_rate_memory_write(dev
, B43_OFDM_RATE_54MB
, 1);
2794 if (dev
->phy
.type
== B43_PHYTYPE_A
)
2798 b43_rate_memory_write(dev
, B43_CCK_RATE_1MB
, 0);
2799 b43_rate_memory_write(dev
, B43_CCK_RATE_2MB
, 0);
2800 b43_rate_memory_write(dev
, B43_CCK_RATE_5MB
, 0);
2801 b43_rate_memory_write(dev
, B43_CCK_RATE_11MB
, 0);
2808 /* Set the default values for the PHY TX Control Words. */
2809 static void b43_set_phytxctl_defaults(struct b43_wldev
*dev
)
2813 ctl
|= B43_TXH_PHY_ENC_CCK
;
2814 ctl
|= B43_TXH_PHY_ANT01AUTO
;
2815 ctl
|= B43_TXH_PHY_TXPWR
;
2817 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_BEACPHYCTL
, ctl
);
2818 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_ACKCTSPHYCTL
, ctl
);
2819 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_PRPHYCTL
, ctl
);
2822 /* Set the TX-Antenna for management frames sent by firmware. */
2823 static void b43_mgmtframe_txantenna(struct b43_wldev
*dev
, int antenna
)
2828 ant
= b43_antenna_to_phyctl(antenna
);
2831 tmp
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_ACKCTSPHYCTL
);
2832 tmp
= (tmp
& ~B43_TXH_PHY_ANT
) | ant
;
2833 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_ACKCTSPHYCTL
, tmp
);
2834 /* For Probe Resposes */
2835 tmp
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_PRPHYCTL
);
2836 tmp
= (tmp
& ~B43_TXH_PHY_ANT
) | ant
;
2837 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_PRPHYCTL
, tmp
);
2840 /* This is the opposite of b43_chip_init() */
2841 static void b43_chip_exit(struct b43_wldev
*dev
)
2844 b43_gpio_cleanup(dev
);
2845 /* firmware is released later */
2848 /* Initialize the chip
2849 * http://bcm-specs.sipsolutions.net/ChipInit
2851 static int b43_chip_init(struct b43_wldev
*dev
)
2853 struct b43_phy
*phy
= &dev
->phy
;
2858 /* Initialize the MAC control */
2859 macctl
= B43_MACCTL_IHR_ENABLED
| B43_MACCTL_SHM_ENABLED
;
2861 macctl
|= B43_MACCTL_GMODE
;
2862 macctl
|= B43_MACCTL_INFRA
;
2863 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
2865 err
= b43_request_firmware(dev
);
2868 err
= b43_upload_microcode(dev
);
2870 goto out
; /* firmware is released later */
2872 err
= b43_gpio_init(dev
);
2874 goto out
; /* firmware is released later */
2876 err
= b43_upload_initvals(dev
);
2878 goto err_gpio_clean
;
2880 /* Turn the Analog on and initialize the PHY. */
2881 phy
->ops
->switch_analog(dev
, 1);
2882 err
= b43_phy_init(dev
);
2884 goto err_gpio_clean
;
2886 /* Disable Interference Mitigation. */
2887 if (phy
->ops
->interf_mitigation
)
2888 phy
->ops
->interf_mitigation(dev
, B43_INTERFMODE_NONE
);
2890 /* Select the antennae */
2891 if (phy
->ops
->set_rx_antenna
)
2892 phy
->ops
->set_rx_antenna(dev
, B43_ANTENNA_DEFAULT
);
2893 b43_mgmtframe_txantenna(dev
, B43_ANTENNA_DEFAULT
);
2895 if (phy
->type
== B43_PHYTYPE_B
) {
2896 value16
= b43_read16(dev
, 0x005E);
2898 b43_write16(dev
, 0x005E, value16
);
2900 b43_write32(dev
, 0x0100, 0x01000000);
2901 if (dev
->sdev
->id
.revision
< 5)
2902 b43_write32(dev
, 0x010C, 0x01000000);
2904 b43_write32(dev
, B43_MMIO_MACCTL
, b43_read32(dev
, B43_MMIO_MACCTL
)
2905 & ~B43_MACCTL_INFRA
);
2906 b43_write32(dev
, B43_MMIO_MACCTL
, b43_read32(dev
, B43_MMIO_MACCTL
)
2907 | B43_MACCTL_INFRA
);
2909 /* Probe Response Timeout value */
2910 /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
2911 b43_shm_write16(dev
, B43_SHM_SHARED
, 0x0074, 0x0000);
2913 /* Initially set the wireless operation mode. */
2914 b43_adjust_opmode(dev
);
2916 if (dev
->sdev
->id
.revision
< 3) {
2917 b43_write16(dev
, 0x060E, 0x0000);
2918 b43_write16(dev
, 0x0610, 0x8000);
2919 b43_write16(dev
, 0x0604, 0x0000);
2920 b43_write16(dev
, 0x0606, 0x0200);
2922 b43_write32(dev
, 0x0188, 0x80000000);
2923 b43_write32(dev
, 0x018C, 0x02000000);
2925 b43_write32(dev
, B43_MMIO_GEN_IRQ_REASON
, 0x00004000);
2926 b43_write32(dev
, B43_MMIO_DMA0_IRQ_MASK
, 0x0001DC00);
2927 b43_write32(dev
, B43_MMIO_DMA1_IRQ_MASK
, 0x0000DC00);
2928 b43_write32(dev
, B43_MMIO_DMA2_IRQ_MASK
, 0x0000DC00);
2929 b43_write32(dev
, B43_MMIO_DMA3_IRQ_MASK
, 0x0001DC00);
2930 b43_write32(dev
, B43_MMIO_DMA4_IRQ_MASK
, 0x0000DC00);
2931 b43_write32(dev
, B43_MMIO_DMA5_IRQ_MASK
, 0x0000DC00);
2933 b43_mac_phy_clock_set(dev
, true);
2935 b43_write16(dev
, B43_MMIO_POWERUP_DELAY
,
2936 dev
->sdev
->bus
->chipco
.fast_pwrup_delay
);
2939 b43dbg(dev
->wl
, "Chip initialized\n");
2944 b43_gpio_cleanup(dev
);
2948 static void b43_periodic_every60sec(struct b43_wldev
*dev
)
2950 const struct b43_phy_operations
*ops
= dev
->phy
.ops
;
2952 if (ops
->pwork_60sec
)
2953 ops
->pwork_60sec(dev
);
2955 /* Force check the TX power emission now. */
2956 b43_phy_txpower_check(dev
, B43_TXPWR_IGNORE_TIME
);
2959 static void b43_periodic_every30sec(struct b43_wldev
*dev
)
2961 /* Update device statistics. */
2962 b43_calculate_link_quality(dev
);
2965 static void b43_periodic_every15sec(struct b43_wldev
*dev
)
2967 struct b43_phy
*phy
= &dev
->phy
;
2970 if (dev
->fw
.opensource
) {
2971 /* Check if the firmware is still alive.
2972 * It will reset the watchdog counter to 0 in its idle loop. */
2973 wdr
= b43_shm_read16(dev
, B43_SHM_SCRATCH
, B43_WATCHDOG_REG
);
2974 if (unlikely(wdr
)) {
2975 b43err(dev
->wl
, "Firmware watchdog: The firmware died!\n");
2976 b43_controller_restart(dev
, "Firmware watchdog");
2979 b43_shm_write16(dev
, B43_SHM_SCRATCH
,
2980 B43_WATCHDOG_REG
, 1);
2984 if (phy
->ops
->pwork_15sec
)
2985 phy
->ops
->pwork_15sec(dev
);
2987 atomic_set(&phy
->txerr_cnt
, B43_PHY_TX_BADNESS_LIMIT
);
2991 if (b43_debug(dev
, B43_DBG_VERBOSESTATS
)) {
2994 b43dbg(dev
->wl
, "Stats: %7u IRQs/sec, %7u TX/sec, %7u RX/sec\n",
2995 dev
->irq_count
/ 15,
2997 dev
->rx_count
/ 15);
3001 for (i
= 0; i
< ARRAY_SIZE(dev
->irq_bit_count
); i
++) {
3002 if (dev
->irq_bit_count
[i
]) {
3003 b43dbg(dev
->wl
, "Stats: %7u IRQ-%02u/sec (0x%08X)\n",
3004 dev
->irq_bit_count
[i
] / 15, i
, (1 << i
));
3005 dev
->irq_bit_count
[i
] = 0;
3012 static void do_periodic_work(struct b43_wldev
*dev
)
3016 state
= dev
->periodic_state
;
3018 b43_periodic_every60sec(dev
);
3020 b43_periodic_every30sec(dev
);
3021 b43_periodic_every15sec(dev
);
3024 /* Periodic work locking policy:
3025 * The whole periodic work handler is protected by
3026 * wl->mutex. If another lock is needed somewhere in the
3027 * pwork callchain, it's acquired in-place, where it's needed.
3029 static void b43_periodic_work_handler(struct work_struct
*work
)
3031 struct b43_wldev
*dev
= container_of(work
, struct b43_wldev
,
3032 periodic_work
.work
);
3033 struct b43_wl
*wl
= dev
->wl
;
3034 unsigned long delay
;
3036 mutex_lock(&wl
->mutex
);
3038 if (unlikely(b43_status(dev
) != B43_STAT_STARTED
))
3040 if (b43_debug(dev
, B43_DBG_PWORK_STOP
))
3043 do_periodic_work(dev
);
3045 dev
->periodic_state
++;
3047 if (b43_debug(dev
, B43_DBG_PWORK_FAST
))
3048 delay
= msecs_to_jiffies(50);
3050 delay
= round_jiffies_relative(HZ
* 15);
3051 ieee80211_queue_delayed_work(wl
->hw
, &dev
->periodic_work
, delay
);
3053 mutex_unlock(&wl
->mutex
);
3056 static void b43_periodic_tasks_setup(struct b43_wldev
*dev
)
3058 struct delayed_work
*work
= &dev
->periodic_work
;
3060 dev
->periodic_state
= 0;
3061 INIT_DELAYED_WORK(work
, b43_periodic_work_handler
);
3062 ieee80211_queue_delayed_work(dev
->wl
->hw
, work
, 0);
3065 /* Check if communication with the device works correctly. */
3066 static int b43_validate_chipaccess(struct b43_wldev
*dev
)
3068 u32 v
, backup0
, backup4
;
3070 backup0
= b43_shm_read32(dev
, B43_SHM_SHARED
, 0);
3071 backup4
= b43_shm_read32(dev
, B43_SHM_SHARED
, 4);
3073 /* Check for read/write and endianness problems. */
3074 b43_shm_write32(dev
, B43_SHM_SHARED
, 0, 0x55AAAA55);
3075 if (b43_shm_read32(dev
, B43_SHM_SHARED
, 0) != 0x55AAAA55)
3077 b43_shm_write32(dev
, B43_SHM_SHARED
, 0, 0xAA5555AA);
3078 if (b43_shm_read32(dev
, B43_SHM_SHARED
, 0) != 0xAA5555AA)
3081 /* Check if unaligned 32bit SHM_SHARED access works properly.
3082 * However, don't bail out on failure, because it's noncritical. */
3083 b43_shm_write16(dev
, B43_SHM_SHARED
, 0, 0x1122);
3084 b43_shm_write16(dev
, B43_SHM_SHARED
, 2, 0x3344);
3085 b43_shm_write16(dev
, B43_SHM_SHARED
, 4, 0x5566);
3086 b43_shm_write16(dev
, B43_SHM_SHARED
, 6, 0x7788);
3087 if (b43_shm_read32(dev
, B43_SHM_SHARED
, 2) != 0x55663344)
3088 b43warn(dev
->wl
, "Unaligned 32bit SHM read access is broken\n");
3089 b43_shm_write32(dev
, B43_SHM_SHARED
, 2, 0xAABBCCDD);
3090 if (b43_shm_read16(dev
, B43_SHM_SHARED
, 0) != 0x1122 ||
3091 b43_shm_read16(dev
, B43_SHM_SHARED
, 2) != 0xCCDD ||
3092 b43_shm_read16(dev
, B43_SHM_SHARED
, 4) != 0xAABB ||
3093 b43_shm_read16(dev
, B43_SHM_SHARED
, 6) != 0x7788)
3094 b43warn(dev
->wl
, "Unaligned 32bit SHM write access is broken\n");
3096 b43_shm_write32(dev
, B43_SHM_SHARED
, 0, backup0
);
3097 b43_shm_write32(dev
, B43_SHM_SHARED
, 4, backup4
);
3099 if ((dev
->sdev
->id
.revision
>= 3) && (dev
->sdev
->id
.revision
<= 10)) {
3100 /* The 32bit register shadows the two 16bit registers
3101 * with update sideeffects. Validate this. */
3102 b43_write16(dev
, B43_MMIO_TSF_CFP_START
, 0xAAAA);
3103 b43_write32(dev
, B43_MMIO_TSF_CFP_START
, 0xCCCCBBBB);
3104 if (b43_read16(dev
, B43_MMIO_TSF_CFP_START_LOW
) != 0xBBBB)
3106 if (b43_read16(dev
, B43_MMIO_TSF_CFP_START_HIGH
) != 0xCCCC)
3109 b43_write32(dev
, B43_MMIO_TSF_CFP_START
, 0);
3111 v
= b43_read32(dev
, B43_MMIO_MACCTL
);
3112 v
|= B43_MACCTL_GMODE
;
3113 if (v
!= (B43_MACCTL_GMODE
| B43_MACCTL_IHR_ENABLED
))
3118 b43err(dev
->wl
, "Failed to validate the chipaccess\n");
3122 static void b43_security_init(struct b43_wldev
*dev
)
3124 dev
->ktp
= b43_shm_read16(dev
, B43_SHM_SHARED
, B43_SHM_SH_KTP
);
3125 /* KTP is a word address, but we address SHM bytewise.
3126 * So multiply by two.
3129 /* Number of RCMTA address slots */
3130 b43_write16(dev
, B43_MMIO_RCMTA_COUNT
, B43_NR_PAIRWISE_KEYS
);
3131 /* Clear the key memory. */
3132 b43_clear_keys(dev
);
3135 #ifdef CONFIG_B43_HWRNG
3136 static int b43_rng_read(struct hwrng
*rng
, u32
*data
)
3138 struct b43_wl
*wl
= (struct b43_wl
*)rng
->priv
;
3139 struct b43_wldev
*dev
;
3140 int count
= -ENODEV
;
3142 mutex_lock(&wl
->mutex
);
3143 dev
= wl
->current_dev
;
3144 if (likely(dev
&& b43_status(dev
) >= B43_STAT_INITIALIZED
)) {
3145 *data
= b43_read16(dev
, B43_MMIO_RNG
);
3146 count
= sizeof(u16
);
3148 mutex_unlock(&wl
->mutex
);
3152 #endif /* CONFIG_B43_HWRNG */
3154 static void b43_rng_exit(struct b43_wl
*wl
)
3156 #ifdef CONFIG_B43_HWRNG
3157 if (wl
->rng_initialized
)
3158 hwrng_unregister(&wl
->rng
);
3159 #endif /* CONFIG_B43_HWRNG */
3162 static int b43_rng_init(struct b43_wl
*wl
)
3166 #ifdef CONFIG_B43_HWRNG
3167 snprintf(wl
->rng_name
, ARRAY_SIZE(wl
->rng_name
),
3168 "%s_%s", KBUILD_MODNAME
, wiphy_name(wl
->hw
->wiphy
));
3169 wl
->rng
.name
= wl
->rng_name
;
3170 wl
->rng
.data_read
= b43_rng_read
;
3171 wl
->rng
.priv
= (unsigned long)wl
;
3172 wl
->rng_initialized
= 1;
3173 err
= hwrng_register(&wl
->rng
);
3175 wl
->rng_initialized
= 0;
3176 b43err(wl
, "Failed to register the random "
3177 "number generator (%d)\n", err
);
3179 #endif /* CONFIG_B43_HWRNG */
3184 static void b43_tx_work(struct work_struct
*work
)
3186 struct b43_wl
*wl
= container_of(work
, struct b43_wl
, tx_work
);
3187 struct b43_wldev
*dev
;
3188 struct sk_buff
*skb
;
3191 mutex_lock(&wl
->mutex
);
3192 dev
= wl
->current_dev
;
3193 if (unlikely(!dev
|| b43_status(dev
) < B43_STAT_STARTED
)) {
3194 mutex_unlock(&wl
->mutex
);
3198 while (skb_queue_len(&wl
->tx_queue
)) {
3199 skb
= skb_dequeue(&wl
->tx_queue
);
3201 if (b43_using_pio_transfers(dev
))
3202 err
= b43_pio_tx(dev
, skb
);
3204 err
= b43_dma_tx(dev
, skb
);
3206 dev_kfree_skb(skb
); /* Drop it */
3212 mutex_unlock(&wl
->mutex
);
3215 static void b43_op_tx(struct ieee80211_hw
*hw
,
3216 struct sk_buff
*skb
)
3218 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3220 if (unlikely(skb
->len
< 2 + 2 + 6)) {
3221 /* Too short, this can't be a valid frame. */
3222 dev_kfree_skb_any(skb
);
3225 B43_WARN_ON(skb_shinfo(skb
)->nr_frags
);
3227 skb_queue_tail(&wl
->tx_queue
, skb
);
3228 ieee80211_queue_work(wl
->hw
, &wl
->tx_work
);
3231 static void b43_qos_params_upload(struct b43_wldev
*dev
,
3232 const struct ieee80211_tx_queue_params
*p
,
3235 u16 params
[B43_NR_QOSPARAMS
];
3239 if (!dev
->qos_enabled
)
3242 bslots
= b43_read16(dev
, B43_MMIO_RNG
) & p
->cw_min
;
3244 memset(¶ms
, 0, sizeof(params
));
3246 params
[B43_QOSPARAM_TXOP
] = p
->txop
* 32;
3247 params
[B43_QOSPARAM_CWMIN
] = p
->cw_min
;
3248 params
[B43_QOSPARAM_CWMAX
] = p
->cw_max
;
3249 params
[B43_QOSPARAM_CWCUR
] = p
->cw_min
;
3250 params
[B43_QOSPARAM_AIFS
] = p
->aifs
;
3251 params
[B43_QOSPARAM_BSLOTS
] = bslots
;
3252 params
[B43_QOSPARAM_REGGAP
] = bslots
+ p
->aifs
;
3254 for (i
= 0; i
< ARRAY_SIZE(params
); i
++) {
3255 if (i
== B43_QOSPARAM_STATUS
) {
3256 tmp
= b43_shm_read16(dev
, B43_SHM_SHARED
,
3257 shm_offset
+ (i
* 2));
3258 /* Mark the parameters as updated. */
3260 b43_shm_write16(dev
, B43_SHM_SHARED
,
3261 shm_offset
+ (i
* 2),
3264 b43_shm_write16(dev
, B43_SHM_SHARED
,
3265 shm_offset
+ (i
* 2),
3271 /* Mapping of mac80211 queue numbers to b43 QoS SHM offsets. */
3272 static const u16 b43_qos_shm_offsets
[] = {
3273 /* [mac80211-queue-nr] = SHM_OFFSET, */
3274 [0] = B43_QOS_VOICE
,
3275 [1] = B43_QOS_VIDEO
,
3276 [2] = B43_QOS_BESTEFFORT
,
3277 [3] = B43_QOS_BACKGROUND
,
3280 /* Update all QOS parameters in hardware. */
3281 static void b43_qos_upload_all(struct b43_wldev
*dev
)
3283 struct b43_wl
*wl
= dev
->wl
;
3284 struct b43_qos_params
*params
;
3287 if (!dev
->qos_enabled
)
3290 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets
) !=
3291 ARRAY_SIZE(wl
->qos_params
));
3293 b43_mac_suspend(dev
);
3294 for (i
= 0; i
< ARRAY_SIZE(wl
->qos_params
); i
++) {
3295 params
= &(wl
->qos_params
[i
]);
3296 b43_qos_params_upload(dev
, &(params
->p
),
3297 b43_qos_shm_offsets
[i
]);
3299 b43_mac_enable(dev
);
3302 static void b43_qos_clear(struct b43_wl
*wl
)
3304 struct b43_qos_params
*params
;
3307 /* Initialize QoS parameters to sane defaults. */
3309 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets
) !=
3310 ARRAY_SIZE(wl
->qos_params
));
3312 for (i
= 0; i
< ARRAY_SIZE(wl
->qos_params
); i
++) {
3313 params
= &(wl
->qos_params
[i
]);
3315 switch (b43_qos_shm_offsets
[i
]) {
3319 params
->p
.cw_min
= 0x0001;
3320 params
->p
.cw_max
= 0x0001;
3325 params
->p
.cw_min
= 0x0001;
3326 params
->p
.cw_max
= 0x0001;
3328 case B43_QOS_BESTEFFORT
:
3331 params
->p
.cw_min
= 0x0001;
3332 params
->p
.cw_max
= 0x03FF;
3334 case B43_QOS_BACKGROUND
:
3337 params
->p
.cw_min
= 0x0001;
3338 params
->p
.cw_max
= 0x03FF;
3346 /* Initialize the core's QOS capabilities */
3347 static void b43_qos_init(struct b43_wldev
*dev
)
3349 if (!dev
->qos_enabled
) {
3350 /* Disable QOS support. */
3351 b43_hf_write(dev
, b43_hf_read(dev
) & ~B43_HF_EDCF
);
3352 b43_write16(dev
, B43_MMIO_IFSCTL
,
3353 b43_read16(dev
, B43_MMIO_IFSCTL
)
3354 & ~B43_MMIO_IFSCTL_USE_EDCF
);
3355 b43dbg(dev
->wl
, "QoS disabled\n");
3359 /* Upload the current QOS parameters. */
3360 b43_qos_upload_all(dev
);
3362 /* Enable QOS support. */
3363 b43_hf_write(dev
, b43_hf_read(dev
) | B43_HF_EDCF
);
3364 b43_write16(dev
, B43_MMIO_IFSCTL
,
3365 b43_read16(dev
, B43_MMIO_IFSCTL
)
3366 | B43_MMIO_IFSCTL_USE_EDCF
);
3367 b43dbg(dev
->wl
, "QoS enabled\n");
3370 static int b43_op_conf_tx(struct ieee80211_hw
*hw
, u16 _queue
,
3371 const struct ieee80211_tx_queue_params
*params
)
3373 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3374 struct b43_wldev
*dev
;
3375 unsigned int queue
= (unsigned int)_queue
;
3378 if (queue
>= ARRAY_SIZE(wl
->qos_params
)) {
3379 /* Queue not available or don't support setting
3380 * params on this queue. Return success to not
3381 * confuse mac80211. */
3384 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets
) !=
3385 ARRAY_SIZE(wl
->qos_params
));
3387 mutex_lock(&wl
->mutex
);
3388 dev
= wl
->current_dev
;
3389 if (unlikely(!dev
|| (b43_status(dev
) < B43_STAT_INITIALIZED
)))
3392 memcpy(&(wl
->qos_params
[queue
].p
), params
, sizeof(*params
));
3393 b43_mac_suspend(dev
);
3394 b43_qos_params_upload(dev
, &(wl
->qos_params
[queue
].p
),
3395 b43_qos_shm_offsets
[queue
]);
3396 b43_mac_enable(dev
);
3400 mutex_unlock(&wl
->mutex
);
3405 static int b43_op_get_stats(struct ieee80211_hw
*hw
,
3406 struct ieee80211_low_level_stats
*stats
)
3408 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3410 mutex_lock(&wl
->mutex
);
3411 memcpy(stats
, &wl
->ieee_stats
, sizeof(*stats
));
3412 mutex_unlock(&wl
->mutex
);
3417 static u64
b43_op_get_tsf(struct ieee80211_hw
*hw
)
3419 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3420 struct b43_wldev
*dev
;
3423 mutex_lock(&wl
->mutex
);
3424 dev
= wl
->current_dev
;
3426 if (dev
&& (b43_status(dev
) >= B43_STAT_INITIALIZED
))
3427 b43_tsf_read(dev
, &tsf
);
3431 mutex_unlock(&wl
->mutex
);
3436 static void b43_op_set_tsf(struct ieee80211_hw
*hw
, u64 tsf
)
3438 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3439 struct b43_wldev
*dev
;
3441 mutex_lock(&wl
->mutex
);
3442 dev
= wl
->current_dev
;
3444 if (dev
&& (b43_status(dev
) >= B43_STAT_INITIALIZED
))
3445 b43_tsf_write(dev
, tsf
);
3447 mutex_unlock(&wl
->mutex
);
3450 static void b43_put_phy_into_reset(struct b43_wldev
*dev
)
3452 struct ssb_device
*sdev
= dev
->sdev
;
3455 tmslow
= ssb_read32(sdev
, SSB_TMSLOW
);
3456 tmslow
&= ~B43_TMSLOW_GMODE
;
3457 tmslow
|= B43_TMSLOW_PHYRESET
;
3458 tmslow
|= SSB_TMSLOW_FGC
;
3459 ssb_write32(sdev
, SSB_TMSLOW
, tmslow
);
3462 tmslow
= ssb_read32(sdev
, SSB_TMSLOW
);
3463 tmslow
&= ~SSB_TMSLOW_FGC
;
3464 tmslow
|= B43_TMSLOW_PHYRESET
;
3465 ssb_write32(sdev
, SSB_TMSLOW
, tmslow
);
3469 static const char *band_to_string(enum ieee80211_band band
)
3472 case IEEE80211_BAND_5GHZ
:
3474 case IEEE80211_BAND_2GHZ
:
3483 /* Expects wl->mutex locked */
3484 static int b43_switch_band(struct b43_wl
*wl
, struct ieee80211_channel
*chan
)
3486 struct b43_wldev
*up_dev
= NULL
;
3487 struct b43_wldev
*down_dev
;
3488 struct b43_wldev
*d
;
3490 bool uninitialized_var(gmode
);
3493 /* Find a device and PHY which supports the band. */
3494 list_for_each_entry(d
, &wl
->devlist
, list
) {
3495 switch (chan
->band
) {
3496 case IEEE80211_BAND_5GHZ
:
3497 if (d
->phy
.supports_5ghz
) {
3502 case IEEE80211_BAND_2GHZ
:
3503 if (d
->phy
.supports_2ghz
) {
3516 b43err(wl
, "Could not find a device for %s-GHz band operation\n",
3517 band_to_string(chan
->band
));
3520 if ((up_dev
== wl
->current_dev
) &&
3521 (!!wl
->current_dev
->phy
.gmode
== !!gmode
)) {
3522 /* This device is already running. */
3525 b43dbg(wl
, "Switching to %s-GHz band\n",
3526 band_to_string(chan
->band
));
3527 down_dev
= wl
->current_dev
;
3529 prev_status
= b43_status(down_dev
);
3530 /* Shutdown the currently running core. */
3531 if (prev_status
>= B43_STAT_STARTED
)
3532 down_dev
= b43_wireless_core_stop(down_dev
);
3533 if (prev_status
>= B43_STAT_INITIALIZED
)
3534 b43_wireless_core_exit(down_dev
);
3536 if (down_dev
!= up_dev
) {
3537 /* We switch to a different core, so we put PHY into
3538 * RESET on the old core. */
3539 b43_put_phy_into_reset(down_dev
);
3542 /* Now start the new core. */
3543 up_dev
->phy
.gmode
= gmode
;
3544 if (prev_status
>= B43_STAT_INITIALIZED
) {
3545 err
= b43_wireless_core_init(up_dev
);
3547 b43err(wl
, "Fatal: Could not initialize device for "
3548 "selected %s-GHz band\n",
3549 band_to_string(chan
->band
));
3553 if (prev_status
>= B43_STAT_STARTED
) {
3554 err
= b43_wireless_core_start(up_dev
);
3556 b43err(wl
, "Fatal: Coult not start device for "
3557 "selected %s-GHz band\n",
3558 band_to_string(chan
->band
));
3559 b43_wireless_core_exit(up_dev
);
3563 B43_WARN_ON(b43_status(up_dev
) != prev_status
);
3565 wl
->current_dev
= up_dev
;
3569 /* Whoops, failed to init the new core. No core is operating now. */
3570 wl
->current_dev
= NULL
;
3574 /* Write the short and long frame retry limit values. */
3575 static void b43_set_retry_limits(struct b43_wldev
*dev
,
3576 unsigned int short_retry
,
3577 unsigned int long_retry
)
3579 /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
3580 * the chip-internal counter. */
3581 short_retry
= min(short_retry
, (unsigned int)0xF);
3582 long_retry
= min(long_retry
, (unsigned int)0xF);
3584 b43_shm_write16(dev
, B43_SHM_SCRATCH
, B43_SHM_SC_SRLIMIT
,
3586 b43_shm_write16(dev
, B43_SHM_SCRATCH
, B43_SHM_SC_LRLIMIT
,
3590 static int b43_op_config(struct ieee80211_hw
*hw
, u32 changed
)
3592 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3593 struct b43_wldev
*dev
;
3594 struct b43_phy
*phy
;
3595 struct ieee80211_conf
*conf
= &hw
->conf
;
3599 mutex_lock(&wl
->mutex
);
3601 /* Switch the band (if necessary). This might change the active core. */
3602 err
= b43_switch_band(wl
, conf
->channel
);
3604 goto out_unlock_mutex
;
3605 dev
= wl
->current_dev
;
3608 if (conf_is_ht(conf
))
3610 (conf_is_ht40_minus(conf
) || conf_is_ht40_plus(conf
));
3612 phy
->is_40mhz
= false;
3614 b43_mac_suspend(dev
);
3616 if (changed
& IEEE80211_CONF_CHANGE_RETRY_LIMITS
)
3617 b43_set_retry_limits(dev
, conf
->short_frame_max_tx_count
,
3618 conf
->long_frame_max_tx_count
);
3619 changed
&= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS
;
3621 goto out_mac_enable
;
3623 /* Switch to the requested channel.
3624 * The firmware takes care of races with the TX handler. */
3625 if (conf
->channel
->hw_value
!= phy
->channel
)
3626 b43_switch_channel(dev
, conf
->channel
->hw_value
);
3628 dev
->wl
->radiotap_enabled
= !!(conf
->flags
& IEEE80211_CONF_MONITOR
);
3630 /* Adjust the desired TX power level. */
3631 if (conf
->power_level
!= 0) {
3632 if (conf
->power_level
!= phy
->desired_txpower
) {
3633 phy
->desired_txpower
= conf
->power_level
;
3634 b43_phy_txpower_check(dev
, B43_TXPWR_IGNORE_TIME
|
3635 B43_TXPWR_IGNORE_TSSI
);
3639 /* Antennas for RX and management frame TX. */
3640 antenna
= B43_ANTENNA_DEFAULT
;
3641 b43_mgmtframe_txantenna(dev
, antenna
);
3642 antenna
= B43_ANTENNA_DEFAULT
;
3643 if (phy
->ops
->set_rx_antenna
)
3644 phy
->ops
->set_rx_antenna(dev
, antenna
);
3646 if (wl
->radio_enabled
!= phy
->radio_on
) {
3647 if (wl
->radio_enabled
) {
3648 b43_software_rfkill(dev
, false);
3649 b43info(dev
->wl
, "Radio turned on by software\n");
3650 if (!dev
->radio_hw_enable
) {
3651 b43info(dev
->wl
, "The hardware RF-kill button "
3652 "still turns the radio physically off. "
3653 "Press the button to turn it on.\n");
3656 b43_software_rfkill(dev
, true);
3657 b43info(dev
->wl
, "Radio turned off by software\n");
3662 b43_mac_enable(dev
);
3664 mutex_unlock(&wl
->mutex
);
3669 static void b43_update_basic_rates(struct b43_wldev
*dev
, u32 brates
)
3671 struct ieee80211_supported_band
*sband
=
3672 dev
->wl
->hw
->wiphy
->bands
[b43_current_band(dev
->wl
)];
3673 struct ieee80211_rate
*rate
;
3675 u16 basic
, direct
, offset
, basic_offset
, rateptr
;
3677 for (i
= 0; i
< sband
->n_bitrates
; i
++) {
3678 rate
= &sband
->bitrates
[i
];
3680 if (b43_is_cck_rate(rate
->hw_value
)) {
3681 direct
= B43_SHM_SH_CCKDIRECT
;
3682 basic
= B43_SHM_SH_CCKBASIC
;
3683 offset
= b43_plcp_get_ratecode_cck(rate
->hw_value
);
3686 direct
= B43_SHM_SH_OFDMDIRECT
;
3687 basic
= B43_SHM_SH_OFDMBASIC
;
3688 offset
= b43_plcp_get_ratecode_ofdm(rate
->hw_value
);
3692 rate
= ieee80211_get_response_rate(sband
, brates
, rate
->bitrate
);
3694 if (b43_is_cck_rate(rate
->hw_value
)) {
3695 basic_offset
= b43_plcp_get_ratecode_cck(rate
->hw_value
);
3696 basic_offset
&= 0xF;
3698 basic_offset
= b43_plcp_get_ratecode_ofdm(rate
->hw_value
);
3699 basic_offset
&= 0xF;
3703 * Get the pointer that we need to point to
3704 * from the direct map
3706 rateptr
= b43_shm_read16(dev
, B43_SHM_SHARED
,
3707 direct
+ 2 * basic_offset
);
3708 /* and write it to the basic map */
3709 b43_shm_write16(dev
, B43_SHM_SHARED
, basic
+ 2 * offset
,
3714 static void b43_op_bss_info_changed(struct ieee80211_hw
*hw
,
3715 struct ieee80211_vif
*vif
,
3716 struct ieee80211_bss_conf
*conf
,
3719 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3720 struct b43_wldev
*dev
;
3722 mutex_lock(&wl
->mutex
);
3724 dev
= wl
->current_dev
;
3725 if (!dev
|| b43_status(dev
) < B43_STAT_STARTED
)
3726 goto out_unlock_mutex
;
3728 B43_WARN_ON(wl
->vif
!= vif
);
3730 if (changed
& BSS_CHANGED_BSSID
) {
3732 memcpy(wl
->bssid
, conf
->bssid
, ETH_ALEN
);
3734 memset(wl
->bssid
, 0, ETH_ALEN
);
3737 if (b43_status(dev
) >= B43_STAT_INITIALIZED
) {
3738 if (changed
& BSS_CHANGED_BEACON
&&
3739 (b43_is_mode(wl
, NL80211_IFTYPE_AP
) ||
3740 b43_is_mode(wl
, NL80211_IFTYPE_MESH_POINT
) ||
3741 b43_is_mode(wl
, NL80211_IFTYPE_ADHOC
)))
3742 b43_update_templates(wl
);
3744 if (changed
& BSS_CHANGED_BSSID
)
3745 b43_write_mac_bssid_templates(dev
);
3748 b43_mac_suspend(dev
);
3750 /* Update templates for AP/mesh mode. */
3751 if (changed
& BSS_CHANGED_BEACON_INT
&&
3752 (b43_is_mode(wl
, NL80211_IFTYPE_AP
) ||
3753 b43_is_mode(wl
, NL80211_IFTYPE_MESH_POINT
) ||
3754 b43_is_mode(wl
, NL80211_IFTYPE_ADHOC
)))
3755 b43_set_beacon_int(dev
, conf
->beacon_int
);
3757 if (changed
& BSS_CHANGED_BASIC_RATES
)
3758 b43_update_basic_rates(dev
, conf
->basic_rates
);
3760 if (changed
& BSS_CHANGED_ERP_SLOT
) {
3761 if (conf
->use_short_slot
)
3762 b43_short_slot_timing_enable(dev
);
3764 b43_short_slot_timing_disable(dev
);
3767 b43_mac_enable(dev
);
3769 mutex_unlock(&wl
->mutex
);
3772 static int b43_op_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
3773 struct ieee80211_vif
*vif
, struct ieee80211_sta
*sta
,
3774 struct ieee80211_key_conf
*key
)
3776 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3777 struct b43_wldev
*dev
;
3781 static const u8 bcast_addr
[ETH_ALEN
] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
3783 if (modparam_nohwcrypt
)
3784 return -ENOSPC
; /* User disabled HW-crypto */
3786 mutex_lock(&wl
->mutex
);
3788 dev
= wl
->current_dev
;
3790 if (!dev
|| b43_status(dev
) < B43_STAT_INITIALIZED
)
3793 if (dev
->fw
.pcm_request_failed
|| !dev
->hwcrypto_enabled
) {
3794 /* We don't have firmware for the crypto engine.
3795 * Must use software-crypto. */
3801 switch (key
->cipher
) {
3802 case WLAN_CIPHER_SUITE_WEP40
:
3803 algorithm
= B43_SEC_ALGO_WEP40
;
3805 case WLAN_CIPHER_SUITE_WEP104
:
3806 algorithm
= B43_SEC_ALGO_WEP104
;
3808 case WLAN_CIPHER_SUITE_TKIP
:
3809 algorithm
= B43_SEC_ALGO_TKIP
;
3811 case WLAN_CIPHER_SUITE_CCMP
:
3812 algorithm
= B43_SEC_ALGO_AES
;
3818 index
= (u8
) (key
->keyidx
);
3824 if (algorithm
== B43_SEC_ALGO_TKIP
&&
3825 (!(key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
) ||
3826 !modparam_hwtkip
)) {
3827 /* We support only pairwise key */
3832 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
) {
3833 if (WARN_ON(!sta
)) {
3837 /* Pairwise key with an assigned MAC address. */
3838 err
= b43_key_write(dev
, -1, algorithm
,
3839 key
->key
, key
->keylen
,
3843 err
= b43_key_write(dev
, index
, algorithm
,
3844 key
->key
, key
->keylen
, NULL
, key
);
3849 if (algorithm
== B43_SEC_ALGO_WEP40
||
3850 algorithm
== B43_SEC_ALGO_WEP104
) {
3851 b43_hf_write(dev
, b43_hf_read(dev
) | B43_HF_USEDEFKEYS
);
3854 b43_hf_read(dev
) & ~B43_HF_USEDEFKEYS
);
3856 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
3857 if (algorithm
== B43_SEC_ALGO_TKIP
)
3858 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
3861 err
= b43_key_clear(dev
, key
->hw_key_idx
);
3872 b43dbg(wl
, "%s hardware based encryption for keyidx: %d, "
3874 cmd
== SET_KEY
? "Using" : "Disabling", key
->keyidx
,
3875 sta
? sta
->addr
: bcast_addr
);
3876 b43_dump_keymemory(dev
);
3878 mutex_unlock(&wl
->mutex
);
3883 static void b43_op_configure_filter(struct ieee80211_hw
*hw
,
3884 unsigned int changed
, unsigned int *fflags
,
3887 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
3888 struct b43_wldev
*dev
;
3890 mutex_lock(&wl
->mutex
);
3891 dev
= wl
->current_dev
;
3897 *fflags
&= FIF_PROMISC_IN_BSS
|
3903 FIF_BCN_PRBRESP_PROMISC
;
3905 changed
&= FIF_PROMISC_IN_BSS
|
3911 FIF_BCN_PRBRESP_PROMISC
;
3913 wl
->filter_flags
= *fflags
;
3915 if (changed
&& b43_status(dev
) >= B43_STAT_INITIALIZED
)
3916 b43_adjust_opmode(dev
);
3919 mutex_unlock(&wl
->mutex
);
3922 /* Locking: wl->mutex
3923 * Returns the current dev. This might be different from the passed in dev,
3924 * because the core might be gone away while we unlocked the mutex. */
3925 static struct b43_wldev
* b43_wireless_core_stop(struct b43_wldev
*dev
)
3927 struct b43_wl
*wl
= dev
->wl
;
3928 struct b43_wldev
*orig_dev
;
3932 if (!dev
|| b43_status(dev
) < B43_STAT_STARTED
)
3935 /* Cancel work. Unlock to avoid deadlocks. */
3936 mutex_unlock(&wl
->mutex
);
3937 cancel_delayed_work_sync(&dev
->periodic_work
);
3938 cancel_work_sync(&wl
->tx_work
);
3939 mutex_lock(&wl
->mutex
);
3940 dev
= wl
->current_dev
;
3941 if (!dev
|| b43_status(dev
) < B43_STAT_STARTED
) {
3942 /* Whoops, aliens ate up the device while we were unlocked. */
3946 /* Disable interrupts on the device. */
3947 b43_set_status(dev
, B43_STAT_INITIALIZED
);
3948 if (dev
->sdev
->bus
->bustype
== SSB_BUSTYPE_SDIO
) {
3949 /* wl->mutex is locked. That is enough. */
3950 b43_write32(dev
, B43_MMIO_GEN_IRQ_MASK
, 0);
3951 b43_read32(dev
, B43_MMIO_GEN_IRQ_MASK
); /* Flush */
3953 spin_lock_irq(&wl
->hardirq_lock
);
3954 b43_write32(dev
, B43_MMIO_GEN_IRQ_MASK
, 0);
3955 b43_read32(dev
, B43_MMIO_GEN_IRQ_MASK
); /* Flush */
3956 spin_unlock_irq(&wl
->hardirq_lock
);
3958 /* Synchronize and free the interrupt handlers. Unlock to avoid deadlocks. */
3960 mutex_unlock(&wl
->mutex
);
3961 if (dev
->sdev
->bus
->bustype
== SSB_BUSTYPE_SDIO
) {
3962 b43_sdio_free_irq(dev
);
3964 synchronize_irq(dev
->sdev
->irq
);
3965 free_irq(dev
->sdev
->irq
, dev
);
3967 mutex_lock(&wl
->mutex
);
3968 dev
= wl
->current_dev
;
3971 if (dev
!= orig_dev
) {
3972 if (b43_status(dev
) >= B43_STAT_STARTED
)
3976 mask
= b43_read32(dev
, B43_MMIO_GEN_IRQ_MASK
);
3977 B43_WARN_ON(mask
!= 0xFFFFFFFF && mask
);
3979 /* Drain the TX queue */
3980 while (skb_queue_len(&wl
->tx_queue
))
3981 dev_kfree_skb(skb_dequeue(&wl
->tx_queue
));
3983 b43_mac_suspend(dev
);
3985 b43dbg(wl
, "Wireless interface stopped\n");
3990 /* Locking: wl->mutex */
3991 static int b43_wireless_core_start(struct b43_wldev
*dev
)
3995 B43_WARN_ON(b43_status(dev
) != B43_STAT_INITIALIZED
);
3997 drain_txstatus_queue(dev
);
3998 if (dev
->sdev
->bus
->bustype
== SSB_BUSTYPE_SDIO
) {
3999 err
= b43_sdio_request_irq(dev
, b43_sdio_interrupt_handler
);
4001 b43err(dev
->wl
, "Cannot request SDIO IRQ\n");
4005 err
= request_threaded_irq(dev
->sdev
->irq
, b43_interrupt_handler
,
4006 b43_interrupt_thread_handler
,
4007 IRQF_SHARED
, KBUILD_MODNAME
, dev
);
4009 b43err(dev
->wl
, "Cannot request IRQ-%d\n",
4015 /* We are ready to run. */
4016 ieee80211_wake_queues(dev
->wl
->hw
);
4017 b43_set_status(dev
, B43_STAT_STARTED
);
4019 /* Start data flow (TX/RX). */
4020 b43_mac_enable(dev
);
4021 b43_write32(dev
, B43_MMIO_GEN_IRQ_MASK
, dev
->irq_mask
);
4023 /* Start maintainance work */
4024 b43_periodic_tasks_setup(dev
);
4028 b43dbg(dev
->wl
, "Wireless interface started\n");
4033 /* Get PHY and RADIO versioning numbers */
4034 static int b43_phy_versioning(struct b43_wldev
*dev
)
4036 struct b43_phy
*phy
= &dev
->phy
;
4044 int unsupported
= 0;
4046 /* Get PHY versioning */
4047 tmp
= b43_read16(dev
, B43_MMIO_PHY_VER
);
4048 analog_type
= (tmp
& B43_PHYVER_ANALOG
) >> B43_PHYVER_ANALOG_SHIFT
;
4049 phy_type
= (tmp
& B43_PHYVER_TYPE
) >> B43_PHYVER_TYPE_SHIFT
;
4050 phy_rev
= (tmp
& B43_PHYVER_VERSION
);
4057 if (phy_rev
!= 2 && phy_rev
!= 4 && phy_rev
!= 6
4065 #ifdef CONFIG_B43_PHY_N
4071 #ifdef CONFIG_B43_PHY_LP
4072 case B43_PHYTYPE_LP
:
4081 b43err(dev
->wl
, "FOUND UNSUPPORTED PHY "
4082 "(Analog %u, Type %u, Revision %u)\n",
4083 analog_type
, phy_type
, phy_rev
);
4086 b43dbg(dev
->wl
, "Found PHY: Analog %u, Type %u, Revision %u\n",
4087 analog_type
, phy_type
, phy_rev
);
4089 /* Get RADIO versioning */
4090 if (dev
->sdev
->bus
->chip_id
== 0x4317) {
4091 if (dev
->sdev
->bus
->chip_rev
== 0)
4093 else if (dev
->sdev
->bus
->chip_rev
== 1)
4098 b43_write16(dev
, B43_MMIO_RADIO_CONTROL
, B43_RADIOCTL_ID
);
4099 tmp
= b43_read16(dev
, B43_MMIO_RADIO_DATA_LOW
);
4100 b43_write16(dev
, B43_MMIO_RADIO_CONTROL
, B43_RADIOCTL_ID
);
4101 tmp
|= (u32
)b43_read16(dev
, B43_MMIO_RADIO_DATA_HIGH
) << 16;
4103 radio_manuf
= (tmp
& 0x00000FFF);
4104 radio_ver
= (tmp
& 0x0FFFF000) >> 12;
4105 radio_rev
= (tmp
& 0xF0000000) >> 28;
4106 if (radio_manuf
!= 0x17F /* Broadcom */)
4110 if (radio_ver
!= 0x2060)
4114 if (radio_manuf
!= 0x17F)
4118 if ((radio_ver
& 0xFFF0) != 0x2050)
4122 if (radio_ver
!= 0x2050)
4126 if (radio_ver
!= 0x2055 && radio_ver
!= 0x2056)
4129 case B43_PHYTYPE_LP
:
4130 if (radio_ver
!= 0x2062 && radio_ver
!= 0x2063)
4137 b43err(dev
->wl
, "FOUND UNSUPPORTED RADIO "
4138 "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
4139 radio_manuf
, radio_ver
, radio_rev
);
4142 b43dbg(dev
->wl
, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n",
4143 radio_manuf
, radio_ver
, radio_rev
);
4145 phy
->radio_manuf
= radio_manuf
;
4146 phy
->radio_ver
= radio_ver
;
4147 phy
->radio_rev
= radio_rev
;
4149 phy
->analog
= analog_type
;
4150 phy
->type
= phy_type
;
4156 static void setup_struct_phy_for_init(struct b43_wldev
*dev
,
4157 struct b43_phy
*phy
)
4159 phy
->hardware_power_control
= !!modparam_hwpctl
;
4160 phy
->next_txpwr_check_time
= jiffies
;
4161 /* PHY TX errors counter. */
4162 atomic_set(&phy
->txerr_cnt
, B43_PHY_TX_BADNESS_LIMIT
);
4165 phy
->phy_locked
= 0;
4166 phy
->radio_locked
= 0;
4170 static void setup_struct_wldev_for_init(struct b43_wldev
*dev
)
4174 /* Assume the radio is enabled. If it's not enabled, the state will
4175 * immediately get fixed on the first periodic work run. */
4176 dev
->radio_hw_enable
= 1;
4179 memset(&dev
->stats
, 0, sizeof(dev
->stats
));
4181 setup_struct_phy_for_init(dev
, &dev
->phy
);
4183 /* IRQ related flags */
4184 dev
->irq_reason
= 0;
4185 memset(dev
->dma_reason
, 0, sizeof(dev
->dma_reason
));
4186 dev
->irq_mask
= B43_IRQ_MASKTEMPLATE
;
4187 if (b43_modparam_verbose
< B43_VERBOSITY_DEBUG
)
4188 dev
->irq_mask
&= ~B43_IRQ_PHY_TXERR
;
4190 dev
->mac_suspended
= 1;
4192 /* Noise calculation context */
4193 memset(&dev
->noisecalc
, 0, sizeof(dev
->noisecalc
));
4196 static void b43_bluetooth_coext_enable(struct b43_wldev
*dev
)
4198 struct ssb_sprom
*sprom
= &dev
->sdev
->bus
->sprom
;
4201 if (!modparam_btcoex
)
4203 if (!(sprom
->boardflags_lo
& B43_BFL_BTCOEXIST
))
4205 if (dev
->phy
.type
!= B43_PHYTYPE_B
&& !dev
->phy
.gmode
)
4208 hf
= b43_hf_read(dev
);
4209 if (sprom
->boardflags_lo
& B43_BFL_BTCMOD
)
4210 hf
|= B43_HF_BTCOEXALT
;
4212 hf
|= B43_HF_BTCOEX
;
4213 b43_hf_write(dev
, hf
);
4216 static void b43_bluetooth_coext_disable(struct b43_wldev
*dev
)
4218 if (!modparam_btcoex
)
4223 static void b43_imcfglo_timeouts_workaround(struct b43_wldev
*dev
)
4225 struct ssb_bus
*bus
= dev
->sdev
->bus
;
4228 if ((bus
->chip_id
== 0x4311 && bus
->chip_rev
== 2) ||
4229 (bus
->chip_id
== 0x4312)) {
4230 tmp
= ssb_read32(dev
->sdev
, SSB_IMCFGLO
);
4231 tmp
&= ~SSB_IMCFGLO_REQTO
;
4232 tmp
&= ~SSB_IMCFGLO_SERTO
;
4234 ssb_write32(dev
->sdev
, SSB_IMCFGLO
, tmp
);
4235 ssb_commit_settings(bus
);
4239 static void b43_set_synth_pu_delay(struct b43_wldev
*dev
, bool idle
)
4243 /* The time value is in microseconds. */
4244 if (dev
->phy
.type
== B43_PHYTYPE_A
)
4248 if (b43_is_mode(dev
->wl
, NL80211_IFTYPE_ADHOC
) || idle
)
4250 if ((dev
->phy
.radio_ver
== 0x2050) && (dev
->phy
.radio_rev
== 8))
4251 pu_delay
= max(pu_delay
, (u16
)2400);
4253 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_SPUWKUP
, pu_delay
);
4256 /* Set the TSF CFP pre-TargetBeaconTransmissionTime. */
4257 static void b43_set_pretbtt(struct b43_wldev
*dev
)
4261 /* The time value is in microseconds. */
4262 if (b43_is_mode(dev
->wl
, NL80211_IFTYPE_ADHOC
)) {
4265 if (dev
->phy
.type
== B43_PHYTYPE_A
)
4270 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_PRETBTT
, pretbtt
);
4271 b43_write16(dev
, B43_MMIO_TSF_CFP_PRETBTT
, pretbtt
);
4274 /* Shutdown a wireless core */
4275 /* Locking: wl->mutex */
4276 static void b43_wireless_core_exit(struct b43_wldev
*dev
)
4280 B43_WARN_ON(dev
&& b43_status(dev
) > B43_STAT_INITIALIZED
);
4281 if (!dev
|| b43_status(dev
) != B43_STAT_INITIALIZED
)
4284 /* Unregister HW RNG driver */
4285 b43_rng_exit(dev
->wl
);
4287 b43_set_status(dev
, B43_STAT_UNINIT
);
4289 /* Stop the microcode PSM. */
4290 macctl
= b43_read32(dev
, B43_MMIO_MACCTL
);
4291 macctl
&= ~B43_MACCTL_PSM_RUN
;
4292 macctl
|= B43_MACCTL_PSM_JMP0
;
4293 b43_write32(dev
, B43_MMIO_MACCTL
, macctl
);
4298 dev
->phy
.ops
->switch_analog(dev
, 0);
4299 if (dev
->wl
->current_beacon
) {
4300 dev_kfree_skb_any(dev
->wl
->current_beacon
);
4301 dev
->wl
->current_beacon
= NULL
;
4304 ssb_device_disable(dev
->sdev
, 0);
4305 ssb_bus_may_powerdown(dev
->sdev
->bus
);
4308 /* Initialize a wireless core */
4309 static int b43_wireless_core_init(struct b43_wldev
*dev
)
4311 struct ssb_bus
*bus
= dev
->sdev
->bus
;
4312 struct ssb_sprom
*sprom
= &bus
->sprom
;
4313 struct b43_phy
*phy
= &dev
->phy
;
4318 B43_WARN_ON(b43_status(dev
) != B43_STAT_UNINIT
);
4320 err
= ssb_bus_powerup(bus
, 0);
4323 if (!ssb_device_is_enabled(dev
->sdev
)) {
4324 tmp
= phy
->gmode
? B43_TMSLOW_GMODE
: 0;
4325 b43_wireless_core_reset(dev
, tmp
);
4328 /* Reset all data structures. */
4329 setup_struct_wldev_for_init(dev
);
4330 phy
->ops
->prepare_structs(dev
);
4332 /* Enable IRQ routing to this device. */
4333 ssb_pcicore_dev_irqvecs_enable(&bus
->pcicore
, dev
->sdev
);
4335 b43_imcfglo_timeouts_workaround(dev
);
4336 b43_bluetooth_coext_disable(dev
);
4337 if (phy
->ops
->prepare_hardware
) {
4338 err
= phy
->ops
->prepare_hardware(dev
);
4342 err
= b43_chip_init(dev
);
4345 b43_shm_write16(dev
, B43_SHM_SHARED
,
4346 B43_SHM_SH_WLCOREREV
, dev
->sdev
->id
.revision
);
4347 hf
= b43_hf_read(dev
);
4348 if (phy
->type
== B43_PHYTYPE_G
) {
4352 if (sprom
->boardflags_lo
& B43_BFL_PACTRL
)
4353 hf
|= B43_HF_OFDMPABOOST
;
4355 if (phy
->radio_ver
== 0x2050) {
4356 if (phy
->radio_rev
== 6)
4357 hf
|= B43_HF_4318TSSI
;
4358 if (phy
->radio_rev
< 6)
4359 hf
|= B43_HF_VCORECALC
;
4361 if (sprom
->boardflags_lo
& B43_BFL_XTAL_NOSLOW
)
4362 hf
|= B43_HF_DSCRQ
; /* Disable slowclock requests from ucode. */
4363 #ifdef CONFIG_SSB_DRIVER_PCICORE
4364 if ((bus
->bustype
== SSB_BUSTYPE_PCI
) &&
4365 (bus
->pcicore
.dev
->id
.revision
<= 10))
4366 hf
|= B43_HF_PCISCW
; /* PCI slow clock workaround. */
4368 hf
&= ~B43_HF_SKCFPUP
;
4369 b43_hf_write(dev
, hf
);
4371 b43_set_retry_limits(dev
, B43_DEFAULT_SHORT_RETRY_LIMIT
,
4372 B43_DEFAULT_LONG_RETRY_LIMIT
);
4373 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_SFFBLIM
, 3);
4374 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_LFFBLIM
, 2);
4376 /* Disable sending probe responses from firmware.
4377 * Setting the MaxTime to one usec will always trigger
4378 * a timeout, so we never send any probe resp.
4379 * A timeout of zero is infinite. */
4380 b43_shm_write16(dev
, B43_SHM_SHARED
, B43_SHM_SH_PRMAXTIME
, 1);
4382 b43_rate_memory_init(dev
);
4383 b43_set_phytxctl_defaults(dev
);
4385 /* Minimum Contention Window */
4386 if (phy
->type
== B43_PHYTYPE_B
)
4387 b43_shm_write16(dev
, B43_SHM_SCRATCH
, B43_SHM_SC_MINCONT
, 0x1F);
4389 b43_shm_write16(dev
, B43_SHM_SCRATCH
, B43_SHM_SC_MINCONT
, 0xF);
4390 /* Maximum Contention Window */
4391 b43_shm_write16(dev
, B43_SHM_SCRATCH
, B43_SHM_SC_MAXCONT
, 0x3FF);
4393 if ((dev
->sdev
->bus
->bustype
== SSB_BUSTYPE_PCMCIA
) ||
4394 (dev
->sdev
->bus
->bustype
== SSB_BUSTYPE_SDIO
) ||
4396 dev
->__using_pio_transfers
= 1;
4397 err
= b43_pio_init(dev
);
4399 dev
->__using_pio_transfers
= 0;
4400 err
= b43_dma_init(dev
);
4405 b43_set_synth_pu_delay(dev
, 1);
4406 b43_bluetooth_coext_enable(dev
);
4408 ssb_bus_powerup(bus
, !(sprom
->boardflags_lo
& B43_BFL_XTAL_NOSLOW
));
4409 b43_upload_card_macaddress(dev
);
4410 b43_security_init(dev
);
4412 ieee80211_wake_queues(dev
->wl
->hw
);
4414 b43_set_status(dev
, B43_STAT_INITIALIZED
);
4416 /* Register HW RNG driver */
4417 b43_rng_init(dev
->wl
);
4425 ssb_bus_may_powerdown(bus
);
4426 B43_WARN_ON(b43_status(dev
) != B43_STAT_UNINIT
);
4430 static int b43_op_add_interface(struct ieee80211_hw
*hw
,
4431 struct ieee80211_vif
*vif
)
4433 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4434 struct b43_wldev
*dev
;
4435 int err
= -EOPNOTSUPP
;
4437 /* TODO: allow WDS/AP devices to coexist */
4439 if (vif
->type
!= NL80211_IFTYPE_AP
&&
4440 vif
->type
!= NL80211_IFTYPE_MESH_POINT
&&
4441 vif
->type
!= NL80211_IFTYPE_STATION
&&
4442 vif
->type
!= NL80211_IFTYPE_WDS
&&
4443 vif
->type
!= NL80211_IFTYPE_ADHOC
)
4446 mutex_lock(&wl
->mutex
);
4448 goto out_mutex_unlock
;
4450 b43dbg(wl
, "Adding Interface type %d\n", vif
->type
);
4452 dev
= wl
->current_dev
;
4455 wl
->if_type
= vif
->type
;
4456 memcpy(wl
->mac_addr
, vif
->addr
, ETH_ALEN
);
4458 b43_adjust_opmode(dev
);
4459 b43_set_pretbtt(dev
);
4460 b43_set_synth_pu_delay(dev
, 0);
4461 b43_upload_card_macaddress(dev
);
4465 mutex_unlock(&wl
->mutex
);
4470 static void b43_op_remove_interface(struct ieee80211_hw
*hw
,
4471 struct ieee80211_vif
*vif
)
4473 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4474 struct b43_wldev
*dev
= wl
->current_dev
;
4476 b43dbg(wl
, "Removing Interface type %d\n", vif
->type
);
4478 mutex_lock(&wl
->mutex
);
4480 B43_WARN_ON(!wl
->operating
);
4481 B43_WARN_ON(wl
->vif
!= vif
);
4486 b43_adjust_opmode(dev
);
4487 memset(wl
->mac_addr
, 0, ETH_ALEN
);
4488 b43_upload_card_macaddress(dev
);
4490 mutex_unlock(&wl
->mutex
);
4493 static int b43_op_start(struct ieee80211_hw
*hw
)
4495 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4496 struct b43_wldev
*dev
= wl
->current_dev
;
4500 /* Kill all old instance specific information to make sure
4501 * the card won't use it in the short timeframe between start
4502 * and mac80211 reconfiguring it. */
4503 memset(wl
->bssid
, 0, ETH_ALEN
);
4504 memset(wl
->mac_addr
, 0, ETH_ALEN
);
4505 wl
->filter_flags
= 0;
4506 wl
->radiotap_enabled
= 0;
4508 wl
->beacon0_uploaded
= 0;
4509 wl
->beacon1_uploaded
= 0;
4510 wl
->beacon_templates_virgin
= 1;
4511 wl
->radio_enabled
= 1;
4513 mutex_lock(&wl
->mutex
);
4515 if (b43_status(dev
) < B43_STAT_INITIALIZED
) {
4516 err
= b43_wireless_core_init(dev
);
4518 goto out_mutex_unlock
;
4522 if (b43_status(dev
) < B43_STAT_STARTED
) {
4523 err
= b43_wireless_core_start(dev
);
4526 b43_wireless_core_exit(dev
);
4527 goto out_mutex_unlock
;
4531 /* XXX: only do if device doesn't support rfkill irq */
4532 wiphy_rfkill_start_polling(hw
->wiphy
);
4535 mutex_unlock(&wl
->mutex
);
4540 static void b43_op_stop(struct ieee80211_hw
*hw
)
4542 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4543 struct b43_wldev
*dev
= wl
->current_dev
;
4545 cancel_work_sync(&(wl
->beacon_update_trigger
));
4547 mutex_lock(&wl
->mutex
);
4548 if (b43_status(dev
) >= B43_STAT_STARTED
) {
4549 dev
= b43_wireless_core_stop(dev
);
4553 b43_wireless_core_exit(dev
);
4554 wl
->radio_enabled
= 0;
4557 mutex_unlock(&wl
->mutex
);
4559 cancel_work_sync(&(wl
->txpower_adjust_work
));
4562 static int b43_op_beacon_set_tim(struct ieee80211_hw
*hw
,
4563 struct ieee80211_sta
*sta
, bool set
)
4565 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4567 /* FIXME: add locking */
4568 b43_update_templates(wl
);
4573 static void b43_op_sta_notify(struct ieee80211_hw
*hw
,
4574 struct ieee80211_vif
*vif
,
4575 enum sta_notify_cmd notify_cmd
,
4576 struct ieee80211_sta
*sta
)
4578 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4580 B43_WARN_ON(!vif
|| wl
->vif
!= vif
);
4583 static void b43_op_sw_scan_start_notifier(struct ieee80211_hw
*hw
)
4585 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4586 struct b43_wldev
*dev
;
4588 mutex_lock(&wl
->mutex
);
4589 dev
= wl
->current_dev
;
4590 if (dev
&& (b43_status(dev
) >= B43_STAT_INITIALIZED
)) {
4591 /* Disable CFP update during scan on other channels. */
4592 b43_hf_write(dev
, b43_hf_read(dev
) | B43_HF_SKCFPUP
);
4594 mutex_unlock(&wl
->mutex
);
4597 static void b43_op_sw_scan_complete_notifier(struct ieee80211_hw
*hw
)
4599 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4600 struct b43_wldev
*dev
;
4602 mutex_lock(&wl
->mutex
);
4603 dev
= wl
->current_dev
;
4604 if (dev
&& (b43_status(dev
) >= B43_STAT_INITIALIZED
)) {
4605 /* Re-enable CFP update. */
4606 b43_hf_write(dev
, b43_hf_read(dev
) & ~B43_HF_SKCFPUP
);
4608 mutex_unlock(&wl
->mutex
);
4611 static int b43_op_get_survey(struct ieee80211_hw
*hw
, int idx
,
4612 struct survey_info
*survey
)
4614 struct b43_wl
*wl
= hw_to_b43_wl(hw
);
4615 struct b43_wldev
*dev
= wl
->current_dev
;
4616 struct ieee80211_conf
*conf
= &hw
->conf
;
4621 survey
->channel
= conf
->channel
;
4622 survey
->filled
= SURVEY_INFO_NOISE_DBM
;
4623 survey
->noise
= dev
->stats
.link_noise
;
4628 static const struct ieee80211_ops b43_hw_ops
= {
4630 .conf_tx
= b43_op_conf_tx
,
4631 .add_interface
= b43_op_add_interface
,
4632 .remove_interface
= b43_op_remove_interface
,
4633 .config
= b43_op_config
,
4634 .bss_info_changed
= b43_op_bss_info_changed
,
4635 .configure_filter
= b43_op_configure_filter
,
4636 .set_key
= b43_op_set_key
,
4637 .update_tkip_key
= b43_op_update_tkip_key
,
4638 .get_stats
= b43_op_get_stats
,
4639 .get_tsf
= b43_op_get_tsf
,
4640 .set_tsf
= b43_op_set_tsf
,
4641 .start
= b43_op_start
,
4642 .stop
= b43_op_stop
,
4643 .set_tim
= b43_op_beacon_set_tim
,
4644 .sta_notify
= b43_op_sta_notify
,
4645 .sw_scan_start
= b43_op_sw_scan_start_notifier
,
4646 .sw_scan_complete
= b43_op_sw_scan_complete_notifier
,
4647 .get_survey
= b43_op_get_survey
,
4648 .rfkill_poll
= b43_rfkill_poll
,
4651 /* Hard-reset the chip. Do not call this directly.
4652 * Use b43_controller_restart()
4654 static void b43_chip_reset(struct work_struct
*work
)
4656 struct b43_wldev
*dev
=
4657 container_of(work
, struct b43_wldev
, restart_work
);
4658 struct b43_wl
*wl
= dev
->wl
;
4662 mutex_lock(&wl
->mutex
);
4664 prev_status
= b43_status(dev
);
4665 /* Bring the device down... */
4666 if (prev_status
>= B43_STAT_STARTED
) {
4667 dev
= b43_wireless_core_stop(dev
);
4673 if (prev_status
>= B43_STAT_INITIALIZED
)
4674 b43_wireless_core_exit(dev
);
4676 /* ...and up again. */
4677 if (prev_status
>= B43_STAT_INITIALIZED
) {
4678 err
= b43_wireless_core_init(dev
);
4682 if (prev_status
>= B43_STAT_STARTED
) {
4683 err
= b43_wireless_core_start(dev
);
4685 b43_wireless_core_exit(dev
);
4691 wl
->current_dev
= NULL
; /* Failed to init the dev. */
4692 mutex_unlock(&wl
->mutex
);
4694 b43err(wl
, "Controller restart FAILED\n");
4696 b43info(wl
, "Controller restarted\n");
4699 static int b43_setup_bands(struct b43_wldev
*dev
,
4700 bool have_2ghz_phy
, bool have_5ghz_phy
)
4702 struct ieee80211_hw
*hw
= dev
->wl
->hw
;
4705 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &b43_band_2GHz
;
4706 if (dev
->phy
.type
== B43_PHYTYPE_N
) {
4708 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] = &b43_band_5GHz_nphy
;
4711 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] = &b43_band_5GHz_aphy
;
4714 dev
->phy
.supports_2ghz
= have_2ghz_phy
;
4715 dev
->phy
.supports_5ghz
= have_5ghz_phy
;
4720 static void b43_wireless_core_detach(struct b43_wldev
*dev
)
4722 /* We release firmware that late to not be required to re-request
4723 * is all the time when we reinit the core. */
4724 b43_release_firmware(dev
);
4728 static int b43_wireless_core_attach(struct b43_wldev
*dev
)
4730 struct b43_wl
*wl
= dev
->wl
;
4731 struct ssb_bus
*bus
= dev
->sdev
->bus
;
4732 struct pci_dev
*pdev
= (bus
->bustype
== SSB_BUSTYPE_PCI
) ? bus
->host_pci
: NULL
;
4734 bool have_2ghz_phy
= 0, have_5ghz_phy
= 0;
4737 /* Do NOT do any device initialization here.
4738 * Do it in wireless_core_init() instead.
4739 * This function is for gathering basic information about the HW, only.
4740 * Also some structs may be set up here. But most likely you want to have
4741 * that in core_init(), too.
4744 err
= ssb_bus_powerup(bus
, 0);
4746 b43err(wl
, "Bus powerup failed\n");
4749 /* Get the PHY type. */
4750 if (dev
->sdev
->id
.revision
>= 5) {
4753 tmshigh
= ssb_read32(dev
->sdev
, SSB_TMSHIGH
);
4754 have_2ghz_phy
= !!(tmshigh
& B43_TMSHIGH_HAVE_2GHZ_PHY
);
4755 have_5ghz_phy
= !!(tmshigh
& B43_TMSHIGH_HAVE_5GHZ_PHY
);
4759 dev
->phy
.gmode
= have_2ghz_phy
;
4760 dev
->phy
.radio_on
= 1;
4761 tmp
= dev
->phy
.gmode
? B43_TMSLOW_GMODE
: 0;
4762 b43_wireless_core_reset(dev
, tmp
);
4764 err
= b43_phy_versioning(dev
);
4767 /* Check if this device supports multiband. */
4769 (pdev
->device
!= 0x4312 &&
4770 pdev
->device
!= 0x4319 && pdev
->device
!= 0x4324)) {
4771 /* No multiband support. */
4774 switch (dev
->phy
.type
) {
4778 case B43_PHYTYPE_LP
: //FIXME not always!
4779 #if 0 //FIXME enabling 5GHz causes a NULL pointer dereference
4790 if (dev
->phy
.type
== B43_PHYTYPE_A
) {
4792 b43err(wl
, "IEEE 802.11a devices are unsupported\n");
4796 if (1 /* disable A-PHY */) {
4797 /* FIXME: For now we disable the A-PHY on multi-PHY devices. */
4798 if (dev
->phy
.type
!= B43_PHYTYPE_N
&&
4799 dev
->phy
.type
!= B43_PHYTYPE_LP
) {
4805 err
= b43_phy_allocate(dev
);
4809 dev
->phy
.gmode
= have_2ghz_phy
;
4810 tmp
= dev
->phy
.gmode
? B43_TMSLOW_GMODE
: 0;
4811 b43_wireless_core_reset(dev
, tmp
);
4813 err
= b43_validate_chipaccess(dev
);
4816 err
= b43_setup_bands(dev
, have_2ghz_phy
, have_5ghz_phy
);
4820 /* Now set some default "current_dev" */
4821 if (!wl
->current_dev
)
4822 wl
->current_dev
= dev
;
4823 INIT_WORK(&dev
->restart_work
, b43_chip_reset
);
4825 dev
->phy
.ops
->switch_analog(dev
, 0);
4826 ssb_device_disable(dev
->sdev
, 0);
4827 ssb_bus_may_powerdown(bus
);
4835 ssb_bus_may_powerdown(bus
);
4839 static void b43_one_core_detach(struct ssb_device
*dev
)
4841 struct b43_wldev
*wldev
;
4844 /* Do not cancel ieee80211-workqueue based work here.
4845 * See comment in b43_remove(). */
4847 wldev
= ssb_get_drvdata(dev
);
4849 b43_debugfs_remove_device(wldev
);
4850 b43_wireless_core_detach(wldev
);
4851 list_del(&wldev
->list
);
4853 ssb_set_drvdata(dev
, NULL
);
4857 static int b43_one_core_attach(struct ssb_device
*dev
, struct b43_wl
*wl
)
4859 struct b43_wldev
*wldev
;
4862 wldev
= kzalloc(sizeof(*wldev
), GFP_KERNEL
);
4866 wldev
->use_pio
= b43_modparam_pio
;
4869 b43_set_status(wldev
, B43_STAT_UNINIT
);
4870 wldev
->bad_frames_preempt
= modparam_bad_frames_preempt
;
4871 INIT_LIST_HEAD(&wldev
->list
);
4873 err
= b43_wireless_core_attach(wldev
);
4875 goto err_kfree_wldev
;
4877 list_add(&wldev
->list
, &wl
->devlist
);
4879 ssb_set_drvdata(dev
, wldev
);
4880 b43_debugfs_add_device(wldev
);
4890 #define IS_PDEV(pdev, _vendor, _device, _subvendor, _subdevice) ( \
4891 (pdev->vendor == PCI_VENDOR_ID_##_vendor) && \
4892 (pdev->device == _device) && \
4893 (pdev->subsystem_vendor == PCI_VENDOR_ID_##_subvendor) && \
4894 (pdev->subsystem_device == _subdevice) )
4896 static void b43_sprom_fixup(struct ssb_bus
*bus
)
4898 struct pci_dev
*pdev
;
4900 /* boardflags workarounds */
4901 if (bus
->boardinfo
.vendor
== SSB_BOARDVENDOR_DELL
&&
4902 bus
->chip_id
== 0x4301 && bus
->boardinfo
.rev
== 0x74)
4903 bus
->sprom
.boardflags_lo
|= B43_BFL_BTCOEXIST
;
4904 if (bus
->boardinfo
.vendor
== PCI_VENDOR_ID_APPLE
&&
4905 bus
->boardinfo
.type
== 0x4E && bus
->boardinfo
.rev
> 0x40)
4906 bus
->sprom
.boardflags_lo
|= B43_BFL_PACTRL
;
4907 if (bus
->bustype
== SSB_BUSTYPE_PCI
) {
4908 pdev
= bus
->host_pci
;
4909 if (IS_PDEV(pdev
, BROADCOM
, 0x4318, ASUSTEK
, 0x100F) ||
4910 IS_PDEV(pdev
, BROADCOM
, 0x4320, DELL
, 0x0003) ||
4911 IS_PDEV(pdev
, BROADCOM
, 0x4320, HP
, 0x12f8) ||
4912 IS_PDEV(pdev
, BROADCOM
, 0x4320, LINKSYS
, 0x0015) ||
4913 IS_PDEV(pdev
, BROADCOM
, 0x4320, LINKSYS
, 0x0014) ||
4914 IS_PDEV(pdev
, BROADCOM
, 0x4320, LINKSYS
, 0x0013) ||
4915 IS_PDEV(pdev
, BROADCOM
, 0x4320, MOTOROLA
, 0x7010))
4916 bus
->sprom
.boardflags_lo
&= ~B43_BFL_BTCOEXIST
;
4920 static void b43_wireless_exit(struct ssb_device
*dev
, struct b43_wl
*wl
)
4922 struct ieee80211_hw
*hw
= wl
->hw
;
4924 ssb_set_devtypedata(dev
, NULL
);
4925 ieee80211_free_hw(hw
);
4928 static int b43_wireless_init(struct ssb_device
*dev
)
4930 struct ssb_sprom
*sprom
= &dev
->bus
->sprom
;
4931 struct ieee80211_hw
*hw
;
4935 b43_sprom_fixup(dev
->bus
);
4937 hw
= ieee80211_alloc_hw(sizeof(*wl
), &b43_hw_ops
);
4939 b43err(NULL
, "Could not allocate ieee80211 device\n");
4942 wl
= hw_to_b43_wl(hw
);
4945 hw
->flags
= IEEE80211_HW_RX_INCLUDES_FCS
|
4946 IEEE80211_HW_SIGNAL_DBM
;
4948 hw
->wiphy
->interface_modes
=
4949 BIT(NL80211_IFTYPE_AP
) |
4950 BIT(NL80211_IFTYPE_MESH_POINT
) |
4951 BIT(NL80211_IFTYPE_STATION
) |
4952 BIT(NL80211_IFTYPE_WDS
) |
4953 BIT(NL80211_IFTYPE_ADHOC
);
4955 hw
->queues
= modparam_qos
? 4 : 1;
4956 wl
->mac80211_initially_registered_queues
= hw
->queues
;
4958 SET_IEEE80211_DEV(hw
, dev
->dev
);
4959 if (is_valid_ether_addr(sprom
->et1mac
))
4960 SET_IEEE80211_PERM_ADDR(hw
, sprom
->et1mac
);
4962 SET_IEEE80211_PERM_ADDR(hw
, sprom
->il0mac
);
4964 /* Initialize struct b43_wl */
4966 mutex_init(&wl
->mutex
);
4967 spin_lock_init(&wl
->hardirq_lock
);
4968 INIT_LIST_HEAD(&wl
->devlist
);
4969 INIT_WORK(&wl
->beacon_update_trigger
, b43_beacon_update_trigger_work
);
4970 INIT_WORK(&wl
->txpower_adjust_work
, b43_phy_txpower_adjust_work
);
4971 INIT_WORK(&wl
->tx_work
, b43_tx_work
);
4972 skb_queue_head_init(&wl
->tx_queue
);
4974 ssb_set_devtypedata(dev
, wl
);
4975 b43info(wl
, "Broadcom %04X WLAN found (core revision %u)\n",
4976 dev
->bus
->chip_id
, dev
->id
.revision
);
4982 static int b43_ssb_probe(struct ssb_device
*dev
, const struct ssb_device_id
*id
)
4988 wl
= ssb_get_devtypedata(dev
);
4990 /* Probing the first core. Must setup common struct b43_wl */
4992 err
= b43_wireless_init(dev
);
4995 wl
= ssb_get_devtypedata(dev
);
4998 err
= b43_one_core_attach(dev
, wl
);
5000 goto err_wireless_exit
;
5003 err
= ieee80211_register_hw(wl
->hw
);
5005 goto err_one_core_detach
;
5006 b43_leds_register(wl
->current_dev
);
5012 err_one_core_detach
:
5013 b43_one_core_detach(dev
);
5016 b43_wireless_exit(dev
, wl
);
5020 static void b43_ssb_remove(struct ssb_device
*dev
)
5022 struct b43_wl
*wl
= ssb_get_devtypedata(dev
);
5023 struct b43_wldev
*wldev
= ssb_get_drvdata(dev
);
5025 /* We must cancel any work here before unregistering from ieee80211,
5026 * as the ieee80211 unreg will destroy the workqueue. */
5027 cancel_work_sync(&wldev
->restart_work
);
5030 if (wl
->current_dev
== wldev
) {
5031 /* Restore the queues count before unregistering, because firmware detect
5032 * might have modified it. Restoring is important, so the networking
5033 * stack can properly free resources. */
5034 wl
->hw
->queues
= wl
->mac80211_initially_registered_queues
;
5035 b43_leds_stop(wldev
);
5036 ieee80211_unregister_hw(wl
->hw
);
5039 b43_one_core_detach(dev
);
5041 if (list_empty(&wl
->devlist
)) {
5042 b43_leds_unregister(wl
);
5043 /* Last core on the chip unregistered.
5044 * We can destroy common struct b43_wl.
5046 b43_wireless_exit(dev
, wl
);
5050 /* Perform a hardware reset. This can be called from any context. */
5051 void b43_controller_restart(struct b43_wldev
*dev
, const char *reason
)
5053 /* Must avoid requeueing, if we are in shutdown. */
5054 if (b43_status(dev
) < B43_STAT_INITIALIZED
)
5056 b43info(dev
->wl
, "Controller RESET (%s) ...\n", reason
);
5057 ieee80211_queue_work(dev
->wl
->hw
, &dev
->restart_work
);
5060 static struct ssb_driver b43_ssb_driver
= {
5061 .name
= KBUILD_MODNAME
,
5062 .id_table
= b43_ssb_tbl
,
5063 .probe
= b43_ssb_probe
,
5064 .remove
= b43_ssb_remove
,
5067 static void b43_print_driverinfo(void)
5069 const char *feat_pci
= "", *feat_pcmcia
= "", *feat_nphy
= "",
5070 *feat_leds
= "", *feat_sdio
= "";
5072 #ifdef CONFIG_B43_PCI_AUTOSELECT
5075 #ifdef CONFIG_B43_PCMCIA
5078 #ifdef CONFIG_B43_PHY_N
5081 #ifdef CONFIG_B43_LEDS
5084 #ifdef CONFIG_B43_SDIO
5087 printk(KERN_INFO
"Broadcom 43xx driver loaded "
5088 "[ Features: %s%s%s%s%s, Firmware-ID: "
5089 B43_SUPPORTED_FIRMWARE_ID
" ]\n",
5090 feat_pci
, feat_pcmcia
, feat_nphy
,
5091 feat_leds
, feat_sdio
);
5094 static int __init
b43_init(void)
5099 err
= b43_pcmcia_init();
5102 err
= b43_sdio_init();
5104 goto err_pcmcia_exit
;
5105 err
= ssb_driver_register(&b43_ssb_driver
);
5108 b43_print_driverinfo();
5121 static void __exit
b43_exit(void)
5123 ssb_driver_unregister(&b43_ssb_driver
);
5129 module_init(b43_init
)
5130 module_exit(b43_exit
)