]> git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blame - drivers/net/wireless/b43/main.c
projects / mirror_ubuntu-zesty-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
iwlwifi: honour regulatory restrictions in scan code
[mirror_ubuntu-zesty-kernel.git] / drivers / net / wireless / b43 / main.c
CommitLineData
e4d6b795
MB		 1/*
2
3 Broadcom B43 wireless driver
4
5 Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>
1f21ad2a 6 Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it>
e4d6b795
MB		 7 Copyright (c) 2005, 2006 Michael Buesch <mb@bu3sch.de>
8 Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
9 Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
10
11 Some parts of the code in this file are derived from the ipw2200
12 driver Copyright(c) 2003 - 2004 Intel Corporation.
13
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 2 of the License, or
17 (at your option) any later version.
18
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
23
24 You should have received a copy of the GNU General Public License
25 along with this program; see the file COPYING. If not, write to
26 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
27 Boston, MA 02110-1301, USA.
28
29*/
30
31#include <linux/delay.h>
32#include <linux/init.h>
33#include <linux/moduleparam.h>
34#include <linux/if_arp.h>
35#include <linux/etherdevice.h>
36#include <linux/version.h>
37#include <linux/firmware.h>
38#include <linux/wireless.h>
39#include <linux/workqueue.h>
40#include <linux/skbuff.h>
96cf49a2 41#include <linux/io.h>
e4d6b795
MB		 42#include <linux/dma-mapping.h>
43#include <asm/unaligned.h>
44
45#include "b43.h"
46#include "main.h"
47#include "debugfs.h"
48#include "phy.h"
7b584163 49#include "nphy.h"
e4d6b795 50#include "dma.h"
5100d5ac 51#include "pio.h"
e4d6b795
MB		 52#include "sysfs.h"
53#include "xmit.h"
e4d6b795
MB		 54#include "lo.h"
55#include "pcmcia.h"
56
57MODULE_DESCRIPTION("Broadcom B43 wireless driver");
58MODULE_AUTHOR("Martin Langer");
59MODULE_AUTHOR("Stefano Brivio");
60MODULE_AUTHOR("Michael Buesch");
61MODULE_LICENSE("GPL");
62
9c7d99d6
MB		 63MODULE_FIRMWARE(B43_SUPPORTED_FIRMWARE_ID);
64
e4d6b795
MB		 65
66static int modparam_bad_frames_preempt;
67module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444);
68MODULE_PARM_DESC(bad_frames_preempt,
69 "enable(1) / disable(0) Bad Frames Preemption");
70
e4d6b795
MB		 71static char modparam_fwpostfix[16];
72module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444);
73MODULE_PARM_DESC(fwpostfix, "Postfix for the .fw files to load.");
74
e4d6b795
MB		 75static int modparam_hwpctl;
76module_param_named(hwpctl, modparam_hwpctl, int, 0444);
77MODULE_PARM_DESC(hwpctl, "Enable hardware-side power control (default off)");
78
79static int modparam_nohwcrypt;
80module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444);
81MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
82
e6f5b934
MB		 83int b43_modparam_qos = 1;
84module_param_named(qos, b43_modparam_qos, int, 0444);
85MODULE_PARM_DESC(qos, "Enable QOS support (default on)");
86
87
e4d6b795
MB		 88static const struct ssb_device_id b43_ssb_tbl[] = {
89 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5),
90 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6),
91 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7),
92 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9),
93 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10),
d5c71e46 94 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11),
013978b6 95 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13),
e4d6b795
MB		 96 SSB_DEVTABLE_END
97};
98
99MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl);
100
101/* Channel and ratetables are shared for all devices.
102 * They can't be const, because ieee80211 puts some precalculated
103 * data in there. This data is the same for all devices, so we don't
104 * get concurrency issues */
105#define RATETAB_ENT(_rateid, _flags) \
8318d78a
JB		 106 { \
107 .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \
108 .hw_value = (_rateid), \
109 .flags = (_flags), \
e4d6b795 110 }
8318d78a
JB		 111
112/*
113 * NOTE: When changing this, sync with xmit.c's
114 * b43_plcp_get_bitrate_idx_* functions!
115 */
e4d6b795 116static struct ieee80211_rate __b43_ratetable[] = {
8318d78a
JB		 117 RATETAB_ENT(B43_CCK_RATE_1MB, 0),
118 RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE),
119 RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE),
120 RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE),
121 RATETAB_ENT(B43_OFDM_RATE_6MB, 0),
122 RATETAB_ENT(B43_OFDM_RATE_9MB, 0),
123 RATETAB_ENT(B43_OFDM_RATE_12MB, 0),
124 RATETAB_ENT(B43_OFDM_RATE_18MB, 0),
125 RATETAB_ENT(B43_OFDM_RATE_24MB, 0),
126 RATETAB_ENT(B43_OFDM_RATE_36MB, 0),
127 RATETAB_ENT(B43_OFDM_RATE_48MB, 0),
128 RATETAB_ENT(B43_OFDM_RATE_54MB, 0),
e4d6b795
MB		 129};
130
131#define b43_a_ratetable (__b43_ratetable + 4)
132#define b43_a_ratetable_size 8
133#define b43_b_ratetable (__b43_ratetable + 0)
134#define b43_b_ratetable_size 4
135#define b43_g_ratetable (__b43_ratetable + 0)
136#define b43_g_ratetable_size 12
137
bb1eeff1
MB		 138#define CHAN4G(_channel, _freq, _flags) { \
139 .band = IEEE80211_BAND_2GHZ, \
140 .center_freq = (_freq), \
141 .hw_value = (_channel), \
142 .flags = (_flags), \
143 .max_antenna_gain = 0, \
144 .max_power = 30, \
145}
96c755a3 146static struct ieee80211_channel b43_2ghz_chantable[] = {
bb1eeff1
MB		 147 CHAN4G(1, 2412, 0),
148 CHAN4G(2, 2417, 0),
149 CHAN4G(3, 2422, 0),
150 CHAN4G(4, 2427, 0),
151 CHAN4G(5, 2432, 0),
152 CHAN4G(6, 2437, 0),
153 CHAN4G(7, 2442, 0),
154 CHAN4G(8, 2447, 0),
155 CHAN4G(9, 2452, 0),
156 CHAN4G(10, 2457, 0),
157 CHAN4G(11, 2462, 0),
158 CHAN4G(12, 2467, 0),
159 CHAN4G(13, 2472, 0),
160 CHAN4G(14, 2484, 0),
161};
162#undef CHAN4G
163
164#define CHAN5G(_channel, _flags) { \
165 .band = IEEE80211_BAND_5GHZ, \
166 .center_freq = 5000 + (5 * (_channel)), \
167 .hw_value = (_channel), \
168 .flags = (_flags), \
169 .max_antenna_gain = 0, \
170 .max_power = 30, \
171}
172static struct ieee80211_channel b43_5ghz_nphy_chantable[] = {
173 CHAN5G(32, 0), CHAN5G(34, 0),
174 CHAN5G(36, 0), CHAN5G(38, 0),
175 CHAN5G(40, 0), CHAN5G(42, 0),
176 CHAN5G(44, 0), CHAN5G(46, 0),
177 CHAN5G(48, 0), CHAN5G(50, 0),
178 CHAN5G(52, 0), CHAN5G(54, 0),
179 CHAN5G(56, 0), CHAN5G(58, 0),
180 CHAN5G(60, 0), CHAN5G(62, 0),
181 CHAN5G(64, 0), CHAN5G(66, 0),
182 CHAN5G(68, 0), CHAN5G(70, 0),
183 CHAN5G(72, 0), CHAN5G(74, 0),
184 CHAN5G(76, 0), CHAN5G(78, 0),
185 CHAN5G(80, 0), CHAN5G(82, 0),
186 CHAN5G(84, 0), CHAN5G(86, 0),
187 CHAN5G(88, 0), CHAN5G(90, 0),
188 CHAN5G(92, 0), CHAN5G(94, 0),
189 CHAN5G(96, 0), CHAN5G(98, 0),
190 CHAN5G(100, 0), CHAN5G(102, 0),
191 CHAN5G(104, 0), CHAN5G(106, 0),
192 CHAN5G(108, 0), CHAN5G(110, 0),
193 CHAN5G(112, 0), CHAN5G(114, 0),
194 CHAN5G(116, 0), CHAN5G(118, 0),
195 CHAN5G(120, 0), CHAN5G(122, 0),
196 CHAN5G(124, 0), CHAN5G(126, 0),
197 CHAN5G(128, 0), CHAN5G(130, 0),
198 CHAN5G(132, 0), CHAN5G(134, 0),
199 CHAN5G(136, 0), CHAN5G(138, 0),
200 CHAN5G(140, 0), CHAN5G(142, 0),
201 CHAN5G(144, 0), CHAN5G(145, 0),
202 CHAN5G(146, 0), CHAN5G(147, 0),
203 CHAN5G(148, 0), CHAN5G(149, 0),
204 CHAN5G(150, 0), CHAN5G(151, 0),
205 CHAN5G(152, 0), CHAN5G(153, 0),
206 CHAN5G(154, 0), CHAN5G(155, 0),
207 CHAN5G(156, 0), CHAN5G(157, 0),
208 CHAN5G(158, 0), CHAN5G(159, 0),
209 CHAN5G(160, 0), CHAN5G(161, 0),
210 CHAN5G(162, 0), CHAN5G(163, 0),
211 CHAN5G(164, 0), CHAN5G(165, 0),
212 CHAN5G(166, 0), CHAN5G(168, 0),
213 CHAN5G(170, 0), CHAN5G(172, 0),
214 CHAN5G(174, 0), CHAN5G(176, 0),
215 CHAN5G(178, 0), CHAN5G(180, 0),
216 CHAN5G(182, 0), CHAN5G(184, 0),
217 CHAN5G(186, 0), CHAN5G(188, 0),
218 CHAN5G(190, 0), CHAN5G(192, 0),
219 CHAN5G(194, 0), CHAN5G(196, 0),
220 CHAN5G(198, 0), CHAN5G(200, 0),
221 CHAN5G(202, 0), CHAN5G(204, 0),
222 CHAN5G(206, 0), CHAN5G(208, 0),
223 CHAN5G(210, 0), CHAN5G(212, 0),
224 CHAN5G(214, 0), CHAN5G(216, 0),
225 CHAN5G(218, 0), CHAN5G(220, 0),
226 CHAN5G(222, 0), CHAN5G(224, 0),
227 CHAN5G(226, 0), CHAN5G(228, 0),
e4d6b795
MB		 228};
229
bb1eeff1
MB		 230static struct ieee80211_channel b43_5ghz_aphy_chantable[] = {
231 CHAN5G(34, 0), CHAN5G(36, 0),
232 CHAN5G(38, 0), CHAN5G(40, 0),
233 CHAN5G(42, 0), CHAN5G(44, 0),
234 CHAN5G(46, 0), CHAN5G(48, 0),
235 CHAN5G(52, 0), CHAN5G(56, 0),
236 CHAN5G(60, 0), CHAN5G(64, 0),
237 CHAN5G(100, 0), CHAN5G(104, 0),
238 CHAN5G(108, 0), CHAN5G(112, 0),
239 CHAN5G(116, 0), CHAN5G(120, 0),
240 CHAN5G(124, 0), CHAN5G(128, 0),
241 CHAN5G(132, 0), CHAN5G(136, 0),
242 CHAN5G(140, 0), CHAN5G(149, 0),
243 CHAN5G(153, 0), CHAN5G(157, 0),
244 CHAN5G(161, 0), CHAN5G(165, 0),
245 CHAN5G(184, 0), CHAN5G(188, 0),
246 CHAN5G(192, 0), CHAN5G(196, 0),
247 CHAN5G(200, 0), CHAN5G(204, 0),
248 CHAN5G(208, 0), CHAN5G(212, 0),
249 CHAN5G(216, 0),
250};
251#undef CHAN5G
252
253static struct ieee80211_supported_band b43_band_5GHz_nphy = {
254 .band = IEEE80211_BAND_5GHZ,
255 .channels = b43_5ghz_nphy_chantable,
256 .n_channels = ARRAY_SIZE(b43_5ghz_nphy_chantable),
257 .bitrates = b43_a_ratetable,
258 .n_bitrates = b43_a_ratetable_size,
e4d6b795 259};
8318d78a 260
bb1eeff1
MB		 261static struct ieee80211_supported_band b43_band_5GHz_aphy = {
262 .band = IEEE80211_BAND_5GHZ,
263 .channels = b43_5ghz_aphy_chantable,
264 .n_channels = ARRAY_SIZE(b43_5ghz_aphy_chantable),
265 .bitrates = b43_a_ratetable,
266 .n_bitrates = b43_a_ratetable_size,
8318d78a 267};
e4d6b795 268
8318d78a 269static struct ieee80211_supported_band b43_band_2GHz = {
bb1eeff1
MB		 270 .band = IEEE80211_BAND_2GHZ,
271 .channels = b43_2ghz_chantable,
272 .n_channels = ARRAY_SIZE(b43_2ghz_chantable),
273 .bitrates = b43_g_ratetable,
274 .n_bitrates = b43_g_ratetable_size,
8318d78a
JB		 275};
276
e4d6b795
MB		 277static void b43_wireless_core_exit(struct b43_wldev *dev);
278static int b43_wireless_core_init(struct b43_wldev *dev);
279static void b43_wireless_core_stop(struct b43_wldev *dev);
280static int b43_wireless_core_start(struct b43_wldev *dev);
281
282static int b43_ratelimit(struct b43_wl *wl)
283{
284 if (!wl || !wl->current_dev)
285 return 1;
286 if (b43_status(wl->current_dev) < B43_STAT_STARTED)
287 return 1;
288 /* We are up and running.
289 * Ratelimit the messages to avoid DoS over the net. */
290 return net_ratelimit();
291}
292
293void b43info(struct b43_wl *wl, const char *fmt, ...)
294{
295 va_list args;
296
297 if (!b43_ratelimit(wl))
298 return;
299 va_start(args, fmt);
300 printk(KERN_INFO "b43-%s: ",
301 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
302 vprintk(fmt, args);
303 va_end(args);
304}
305
306void b43err(struct b43_wl *wl, const char *fmt, ...)
307{
308 va_list args;
309
310 if (!b43_ratelimit(wl))
311 return;
312 va_start(args, fmt);
313 printk(KERN_ERR "b43-%s ERROR: ",
314 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
315 vprintk(fmt, args);
316 va_end(args);
317}
318
319void b43warn(struct b43_wl *wl, const char *fmt, ...)
320{
321 va_list args;
322
323 if (!b43_ratelimit(wl))
324 return;
325 va_start(args, fmt);
326 printk(KERN_WARNING "b43-%s warning: ",
327 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
328 vprintk(fmt, args);
329 va_end(args);
330}
331
332#if B43_DEBUG
333void b43dbg(struct b43_wl *wl, const char *fmt, ...)
334{
335 va_list args;
336
337 va_start(args, fmt);
338 printk(KERN_DEBUG "b43-%s debug: ",
339 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
340 vprintk(fmt, args);
341 va_end(args);
342}
343#endif /* DEBUG */
344
345static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val)
346{
347 u32 macctl;
348
349 B43_WARN_ON(offset % 4 != 0);
350
351 macctl = b43_read32(dev, B43_MMIO_MACCTL);
352 if (macctl & B43_MACCTL_BE)
353 val = swab32(val);
354
355 b43_write32(dev, B43_MMIO_RAM_CONTROL, offset);
356 mmiowb();
357 b43_write32(dev, B43_MMIO_RAM_DATA, val);
358}
359
280d0e16
MB		 360static inline void b43_shm_control_word(struct b43_wldev *dev,
361 u16 routing, u16 offset)
e4d6b795
MB		 362{
363 u32 control;
364
365 /* "offset" is the WORD offset. */
e4d6b795
MB		 366 control = routing;
367 control <<= 16;
368 control |= offset;
369 b43_write32(dev, B43_MMIO_SHM_CONTROL, control);
370}
371
372u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset)
373{
280d0e16
MB		 374 struct b43_wl *wl = dev->wl;
375 unsigned long flags;
e4d6b795
MB		 376 u32 ret;
377
280d0e16 378 spin_lock_irqsave(&wl->shm_lock, flags);
e4d6b795
MB		 379 if (routing == B43_SHM_SHARED) {
380 B43_WARN_ON(offset & 0x0001);
381 if (offset & 0x0003) {
382 /* Unaligned access */
383 b43_shm_control_word(dev, routing, offset >> 2);
384 ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
385 ret <<= 16;
386 b43_shm_control_word(dev, routing, (offset >> 2) + 1);
387 ret |= b43_read16(dev, B43_MMIO_SHM_DATA);
388
280d0e16 389 goto out;
e4d6b795
MB		 390 }
391 offset >>= 2;
392 }
393 b43_shm_control_word(dev, routing, offset);
394 ret = b43_read32(dev, B43_MMIO_SHM_DATA);
280d0e16
MB		 395out:
396 spin_unlock_irqrestore(&wl->shm_lock, flags);
e4d6b795
MB		 397
398 return ret;
399}
400
401u16 b43_shm_read16(struct b43_wldev * dev, u16 routing, u16 offset)
402{
280d0e16
MB		 403 struct b43_wl *wl = dev->wl;
404 unsigned long flags;
e4d6b795
MB		 405 u16 ret;
406
280d0e16 407 spin_lock_irqsave(&wl->shm_lock, flags);
e4d6b795
MB		 408 if (routing == B43_SHM_SHARED) {
409 B43_WARN_ON(offset & 0x0001);
410 if (offset & 0x0003) {
411 /* Unaligned access */
412 b43_shm_control_word(dev, routing, offset >> 2);
413 ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
414
280d0e16 415 goto out;
e4d6b795
MB		 416 }
417 offset >>= 2;
418 }
419 b43_shm_control_word(dev, routing, offset);
420 ret = b43_read16(dev, B43_MMIO_SHM_DATA);
280d0e16
MB		 421out:
422 spin_unlock_irqrestore(&wl->shm_lock, flags);
e4d6b795
MB		 423
424 return ret;
425}
426
427void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value)
428{
280d0e16
MB		 429 struct b43_wl *wl = dev->wl;
430 unsigned long flags;
431
432 spin_lock_irqsave(&wl->shm_lock, flags);
e4d6b795
MB		 433 if (routing == B43_SHM_SHARED) {
434 B43_WARN_ON(offset & 0x0001);
435 if (offset & 0x0003) {
436 /* Unaligned access */
437 b43_shm_control_word(dev, routing, offset >> 2);
e4d6b795
MB		 438 b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED,
439 (value >> 16) & 0xffff);
e4d6b795 440 b43_shm_control_word(dev, routing, (offset >> 2) + 1);
e4d6b795 441 b43_write16(dev, B43_MMIO_SHM_DATA, value & 0xffff);
280d0e16 442 goto out;
e4d6b795
MB		 443 }
444 offset >>= 2;
445 }
446 b43_shm_control_word(dev, routing, offset);
e4d6b795 447 b43_write32(dev, B43_MMIO_SHM_DATA, value);
280d0e16
MB		 448out:
449 spin_unlock_irqrestore(&wl->shm_lock, flags);
e4d6b795
MB		 450}
451
452void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value)
453{
280d0e16
MB		 454 struct b43_wl *wl = dev->wl;
455 unsigned long flags;
456
457 spin_lock_irqsave(&wl->shm_lock, flags);
e4d6b795
MB		 458 if (routing == B43_SHM_SHARED) {
459 B43_WARN_ON(offset & 0x0001);
460 if (offset & 0x0003) {
461 /* Unaligned access */
462 b43_shm_control_word(dev, routing, offset >> 2);
e4d6b795 463 b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value);
280d0e16 464 goto out;
e4d6b795
MB		 465 }
466 offset >>= 2;
467 }
468 b43_shm_control_word(dev, routing, offset);
e4d6b795 469 b43_write16(dev, B43_MMIO_SHM_DATA, value);
280d0e16
MB		 470out:
471 spin_unlock_irqrestore(&wl->shm_lock, flags);
e4d6b795
MB		 472}
473
474/* Read HostFlags */
35f0d354 475u64 b43_hf_read(struct b43_wldev * dev)
e4d6b795 476{
35f0d354 477 u64 ret;
e4d6b795
MB		 478
479 ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI);
480 ret <<= 16;
35f0d354
MB		 481 ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI);
482 ret <<= 16;
e4d6b795
MB		 483 ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO);
484
485 return ret;
486}
487
488/* Write HostFlags */
35f0d354 489void b43_hf_write(struct b43_wldev *dev, u64 value)
e4d6b795 490{
35f0d354
MB		 491 u16 lo, mi, hi;
492
493 lo = (value & 0x00000000FFFFULL);
494 mi = (value & 0x0000FFFF0000ULL) >> 16;
495 hi = (value & 0xFFFF00000000ULL) >> 32;
496 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO, lo);
497 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI, mi);
498 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi);
e4d6b795
MB		 499}
500
501void b43_tsf_read(struct b43_wldev *dev, u64 * tsf)
502{
503 /* We need to be careful. As we read the TSF from multiple
504 * registers, we should take care of register overflows.
505 * In theory, the whole tsf read process should be atomic.
506 * We try to be atomic here, by restaring the read process,
507 * if any of the high registers changed (overflew).
508 */
509 if (dev->dev->id.revision >= 3) {
510 u32 low, high, high2;
511
512 do {
513 high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH);
514 low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW);
515 high2 = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH);
516 } while (unlikely(high != high2));
517
518 *tsf = high;
519 *tsf <<= 32;
520 *tsf |= low;
521 } else {
522 u64 tmp;
523 u16 v0, v1, v2, v3;
524 u16 test1, test2, test3;
525
526 do {
527 v3 = b43_read16(dev, B43_MMIO_TSF_3);
528 v2 = b43_read16(dev, B43_MMIO_TSF_2);
529 v1 = b43_read16(dev, B43_MMIO_TSF_1);
530 v0 = b43_read16(dev, B43_MMIO_TSF_0);
531
532 test3 = b43_read16(dev, B43_MMIO_TSF_3);
533 test2 = b43_read16(dev, B43_MMIO_TSF_2);
534 test1 = b43_read16(dev, B43_MMIO_TSF_1);
535 } while (v3 != test3 || v2 != test2 || v1 != test1);
536
537 *tsf = v3;
538 *tsf <<= 48;
539 tmp = v2;
540 tmp <<= 32;
541 *tsf |= tmp;
542 tmp = v1;
543 tmp <<= 16;
544 *tsf |= tmp;
545 *tsf |= v0;
546 }
547}
548
549static void b43_time_lock(struct b43_wldev *dev)
550{
551 u32 macctl;
552
553 macctl = b43_read32(dev, B43_MMIO_MACCTL);
554 macctl |= B43_MACCTL_TBTTHOLD;
555 b43_write32(dev, B43_MMIO_MACCTL, macctl);
556 /* Commit the write */
557 b43_read32(dev, B43_MMIO_MACCTL);
558}
559
560static void b43_time_unlock(struct b43_wldev *dev)
561{
562 u32 macctl;
563
564 macctl = b43_read32(dev, B43_MMIO_MACCTL);
565 macctl &= ~B43_MACCTL_TBTTHOLD;
566 b43_write32(dev, B43_MMIO_MACCTL, macctl);
567 /* Commit the write */
568 b43_read32(dev, B43_MMIO_MACCTL);
569}
570
571static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf)
572{
573 /* Be careful with the in-progress timer.
574 * First zero out the low register, so we have a full
575 * register-overflow duration to complete the operation.
576 */
577 if (dev->dev->id.revision >= 3) {
578 u32 lo = (tsf & 0x00000000FFFFFFFFULL);
579 u32 hi = (tsf & 0xFFFFFFFF00000000ULL) >> 32;
580
581 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, 0);
582 mmiowb();
583 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, hi);
584 mmiowb();
585 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, lo);
586 } else {
587 u16 v0 = (tsf & 0x000000000000FFFFULL);
588 u16 v1 = (tsf & 0x00000000FFFF0000ULL) >> 16;
589 u16 v2 = (tsf & 0x0000FFFF00000000ULL) >> 32;
590 u16 v3 = (tsf & 0xFFFF000000000000ULL) >> 48;
591
592 b43_write16(dev, B43_MMIO_TSF_0, 0);
593 mmiowb();
594 b43_write16(dev, B43_MMIO_TSF_3, v3);
595 mmiowb();
596 b43_write16(dev, B43_MMIO_TSF_2, v2);
597 mmiowb();
598 b43_write16(dev, B43_MMIO_TSF_1, v1);
599 mmiowb();
600 b43_write16(dev, B43_MMIO_TSF_0, v0);
601 }
602}
603
604void b43_tsf_write(struct b43_wldev *dev, u64 tsf)
605{
606 b43_time_lock(dev);
607 b43_tsf_write_locked(dev, tsf);
608 b43_time_unlock(dev);
609}
610
611static
612void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 * mac)
613{
614 static const u8 zero_addr[ETH_ALEN] = { 0 };
615 u16 data;
616
617 if (!mac)
618 mac = zero_addr;
619
620 offset |= 0x0020;
621 b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset);
622
623 data = mac[0];
624 data |= mac[1] << 8;
625 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
626 data = mac[2];
627 data |= mac[3] << 8;
628 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
629 data = mac[4];
630 data |= mac[5] << 8;
631 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
632}
633
634static void b43_write_mac_bssid_templates(struct b43_wldev *dev)
635{
636 const u8 *mac;
637 const u8 *bssid;
638 u8 mac_bssid[ETH_ALEN * 2];
639 int i;
640 u32 tmp;
641
642 bssid = dev->wl->bssid;
643 mac = dev->wl->mac_addr;
644
645 b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid);
646
647 memcpy(mac_bssid, mac, ETH_ALEN);
648 memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN);
649
650 /* Write our MAC address and BSSID to template ram */
651 for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) {
652 tmp = (u32) (mac_bssid[i + 0]);
653 tmp |= (u32) (mac_bssid[i + 1]) << 8;
654 tmp |= (u32) (mac_bssid[i + 2]) << 16;
655 tmp |= (u32) (mac_bssid[i + 3]) << 24;
656 b43_ram_write(dev, 0x20 + i, tmp);
657 }
658}
659
4150c572 660static void b43_upload_card_macaddress(struct b43_wldev *dev)
e4d6b795 661{
e4d6b795 662 b43_write_mac_bssid_templates(dev);
4150c572 663 b43_macfilter_set(dev, B43_MACFILTER_SELF, dev->wl->mac_addr);
e4d6b795
MB		 664}
665
666static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time)
667{
668 /* slot_time is in usec. */
669 if (dev->phy.type != B43_PHYTYPE_G)
670 return;
671 b43_write16(dev, 0x684, 510 + slot_time);
672 b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time);
673}
674
675static void b43_short_slot_timing_enable(struct b43_wldev *dev)
676{
677 b43_set_slot_time(dev, 9);
678 dev->short_slot = 1;
679}
680
681static void b43_short_slot_timing_disable(struct b43_wldev *dev)
682{
683 b43_set_slot_time(dev, 20);
684 dev->short_slot = 0;
685}
686
687/* Enable a Generic IRQ. "mask" is the mask of which IRQs to enable.
688 * Returns the _previously_ enabled IRQ mask.
689 */
690static inline u32 b43_interrupt_enable(struct b43_wldev *dev, u32 mask)
691{
692 u32 old_mask;
693
694 old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
695 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask | mask);
696
697 return old_mask;
698}
699
700/* Disable a Generic IRQ. "mask" is the mask of which IRQs to disable.
701 * Returns the _previously_ enabled IRQ mask.
702 */
703static inline u32 b43_interrupt_disable(struct b43_wldev *dev, u32 mask)
704{
705 u32 old_mask;
706
707 old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
708 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask & ~mask);
709
710 return old_mask;
711}
712
713/* Synchronize IRQ top- and bottom-half.
714 * IRQs must be masked before calling this.
715 * This must not be called with the irq_lock held.
716 */
717static void b43_synchronize_irq(struct b43_wldev *dev)
718{
719 synchronize_irq(dev->dev->irq);
720 tasklet_kill(&dev->isr_tasklet);
721}
722
723/* DummyTransmission function, as documented on
724 * http://bcm-specs.sipsolutions.net/DummyTransmission
725 */
726void b43_dummy_transmission(struct b43_wldev *dev)
727{
728 struct b43_phy *phy = &dev->phy;
729 unsigned int i, max_loop;
730 u16 value;
731 u32 buffer[5] = {
732 0x00000000,
733 0x00D40000,
734 0x00000000,
735 0x01000000,
736 0x00000000,
737 };
738
739 switch (phy->type) {
740 case B43_PHYTYPE_A:
741 max_loop = 0x1E;
742 buffer[0] = 0x000201CC;
743 break;
744 case B43_PHYTYPE_B:
745 case B43_PHYTYPE_G:
746 max_loop = 0xFA;
747 buffer[0] = 0x000B846E;
748 break;
749 default:
750 B43_WARN_ON(1);
751 return;
752 }
753
754 for (i = 0; i < 5; i++)
755 b43_ram_write(dev, i * 4, buffer[i]);
756
757 /* Commit writes */
758 b43_read32(dev, B43_MMIO_MACCTL);
759
760 b43_write16(dev, 0x0568, 0x0000);
761 b43_write16(dev, 0x07C0, 0x0000);
762 value = ((phy->type == B43_PHYTYPE_A) ? 1 : 0);
763 b43_write16(dev, 0x050C, value);
764 b43_write16(dev, 0x0508, 0x0000);
765 b43_write16(dev, 0x050A, 0x0000);
766 b43_write16(dev, 0x054C, 0x0000);
767 b43_write16(dev, 0x056A, 0x0014);
768 b43_write16(dev, 0x0568, 0x0826);
769 b43_write16(dev, 0x0500, 0x0000);
770 b43_write16(dev, 0x0502, 0x0030);
771
772 if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
773 b43_radio_write16(dev, 0x0051, 0x0017);
774 for (i = 0x00; i < max_loop; i++) {
775 value = b43_read16(dev, 0x050E);
776 if (value & 0x0080)
777 break;
778 udelay(10);
779 }
780 for (i = 0x00; i < 0x0A; i++) {
781 value = b43_read16(dev, 0x050E);
782 if (value & 0x0400)
783 break;
784 udelay(10);
785 }
786 for (i = 0x00; i < 0x0A; i++) {
787 value = b43_read16(dev, 0x0690);
788 if (!(value & 0x0100))
789 break;
790 udelay(10);
791 }
792 if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
793 b43_radio_write16(dev, 0x0051, 0x0037);
794}
795
796static void key_write(struct b43_wldev *dev,
797 u8 index, u8 algorithm, const u8 * key)
798{
799 unsigned int i;
800 u32 offset;
801 u16 value;
802 u16 kidx;
803
804 /* Key index/algo block */
805 kidx = b43_kidx_to_fw(dev, index);
806 value = ((kidx << 4) | algorithm);
807 b43_shm_write16(dev, B43_SHM_SHARED,
808 B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value);
809
810 /* Write the key to the Key Table Pointer offset */
811 offset = dev->ktp + (index * B43_SEC_KEYSIZE);
812 for (i = 0; i < B43_SEC_KEYSIZE; i += 2) {
813 value = key[i];
814 value |= (u16) (key[i + 1]) << 8;
815 b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value);
816 }
817}
818
819static void keymac_write(struct b43_wldev *dev, u8 index, const u8 * addr)
820{
821 u32 addrtmp[2] = { 0, 0, };
822 u8 per_sta_keys_start = 8;
823
824 if (b43_new_kidx_api(dev))
825 per_sta_keys_start = 4;
826
827 B43_WARN_ON(index < per_sta_keys_start);
828 /* We have two default TX keys and possibly two default RX keys.
829 * Physical mac 0 is mapped to physical key 4 or 8, depending
830 * on the firmware version.
831 * So we must adjust the index here.
832 */
833 index -= per_sta_keys_start;
834
835 if (addr) {
836 addrtmp[0] = addr[0];
837 addrtmp[0] |= ((u32) (addr[1]) << 8);
838 addrtmp[0] |= ((u32) (addr[2]) << 16);
839 addrtmp[0] |= ((u32) (addr[3]) << 24);
840 addrtmp[1] = addr[4];
841 addrtmp[1] |= ((u32) (addr[5]) << 8);
842 }
843
844 if (dev->dev->id.revision >= 5) {
845 /* Receive match transmitter address mechanism */
846 b43_shm_write32(dev, B43_SHM_RCMTA,
847 (index * 2) + 0, addrtmp[0]);
848 b43_shm_write16(dev, B43_SHM_RCMTA,
849 (index * 2) + 1, addrtmp[1]);
850 } else {
851 /* RXE (Receive Engine) and
852 * PSM (Programmable State Machine) mechanism
853 */
854 if (index < 8) {
855 /* TODO write to RCM 16, 19, 22 and 25 */
856 } else {
857 b43_shm_write32(dev, B43_SHM_SHARED,
858 B43_SHM_SH_PSM + (index * 6) + 0,
859 addrtmp[0]);
860 b43_shm_write16(dev, B43_SHM_SHARED,
861 B43_SHM_SH_PSM + (index * 6) + 4,
862 addrtmp[1]);
863 }
864 }
865}
866
867static void do_key_write(struct b43_wldev *dev,
868 u8 index, u8 algorithm,
869 const u8 * key, size_t key_len, const u8 * mac_addr)
870{
871 u8 buf[B43_SEC_KEYSIZE] = { 0, };
872 u8 per_sta_keys_start = 8;
873
874 if (b43_new_kidx_api(dev))
875 per_sta_keys_start = 4;
876
877 B43_WARN_ON(index >= dev->max_nr_keys);
878 B43_WARN_ON(key_len > B43_SEC_KEYSIZE);
879
880 if (index >= per_sta_keys_start)
881 keymac_write(dev, index, NULL); /* First zero out mac. */
882 if (key)
883 memcpy(buf, key, key_len);
884 key_write(dev, index, algorithm, buf);
885 if (index >= per_sta_keys_start)
886 keymac_write(dev, index, mac_addr);
887
888 dev->key[index].algorithm = algorithm;
889}
890
891static int b43_key_write(struct b43_wldev *dev,
892 int index, u8 algorithm,
893 const u8 * key, size_t key_len,
894 const u8 * mac_addr,
895 struct ieee80211_key_conf *keyconf)
896{
897 int i;
898 int sta_keys_start;
899
900 if (key_len > B43_SEC_KEYSIZE)
901 return -EINVAL;
902 for (i = 0; i < dev->max_nr_keys; i++) {
903 /* Check that we don't already have this key. */
904 B43_WARN_ON(dev->key[i].keyconf == keyconf);
905 }
906 if (index < 0) {
907 /* Either pairwise key or address is 00:00:00:00:00:00
908 * for transmit-only keys. Search the index. */
909 if (b43_new_kidx_api(dev))
910 sta_keys_start = 4;
911 else
912 sta_keys_start = 8;
913 for (i = sta_keys_start; i < dev->max_nr_keys; i++) {
914 if (!dev->key[i].keyconf) {
915 /* found empty */
916 index = i;
917 break;
918 }
919 }
920 if (index < 0) {
921 b43err(dev->wl, "Out of hardware key memory\n");
922 return -ENOSPC;
923 }
924 } else
925 B43_WARN_ON(index > 3);
926
927 do_key_write(dev, index, algorithm, key, key_len, mac_addr);
928 if ((index <= 3) && !b43_new_kidx_api(dev)) {
929 /* Default RX key */
930 B43_WARN_ON(mac_addr);
931 do_key_write(dev, index + 4, algorithm, key, key_len, NULL);
932 }
933 keyconf->hw_key_idx = index;
934 dev->key[index].keyconf = keyconf;
935
936 return 0;
937}
938
939static int b43_key_clear(struct b43_wldev *dev, int index)
940{
941 if (B43_WARN_ON((index < 0) || (index >= dev->max_nr_keys)))
942 return -EINVAL;
943 do_key_write(dev, index, B43_SEC_ALGO_NONE,
944 NULL, B43_SEC_KEYSIZE, NULL);
945 if ((index <= 3) && !b43_new_kidx_api(dev)) {
946 do_key_write(dev, index + 4, B43_SEC_ALGO_NONE,
947 NULL, B43_SEC_KEYSIZE, NULL);
948 }
949 dev->key[index].keyconf = NULL;
950
951 return 0;
952}
953
954static void b43_clear_keys(struct b43_wldev *dev)
955{
956 int i;
957
958 for (i = 0; i < dev->max_nr_keys; i++)
959 b43_key_clear(dev, i);
960}
961
962void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags)
963{
964 u32 macctl;
965 u16 ucstat;
966 bool hwps;
967 bool awake;
968 int i;
969
970 B43_WARN_ON((ps_flags & B43_PS_ENABLED) &&
971 (ps_flags & B43_PS_DISABLED));
972 B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP));
973
974 if (ps_flags & B43_PS_ENABLED) {
975 hwps = 1;
976 } else if (ps_flags & B43_PS_DISABLED) {
977 hwps = 0;
978 } else {
979 //TODO: If powersave is not off and FIXME is not set and we are not in adhoc
980 // and thus is not an AP and we are associated, set bit 25
981 }
982 if (ps_flags & B43_PS_AWAKE) {
983 awake = 1;
984 } else if (ps_flags & B43_PS_ASLEEP) {
985 awake = 0;
986 } else {
987 //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME,
988 // or we are associated, or FIXME, or the latest PS-Poll packet sent was
989 // successful, set bit26
990 }
991
992/* FIXME: For now we force awake-on and hwps-off */
993 hwps = 0;
994 awake = 1;
995
996 macctl = b43_read32(dev, B43_MMIO_MACCTL);
997 if (hwps)
998 macctl |= B43_MACCTL_HWPS;
999 else
1000 macctl &= ~B43_MACCTL_HWPS;
1001 if (awake)
1002 macctl |= B43_MACCTL_AWAKE;
1003 else
1004 macctl &= ~B43_MACCTL_AWAKE;
1005 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1006 /* Commit write */
1007 b43_read32(dev, B43_MMIO_MACCTL);
1008 if (awake && dev->dev->id.revision >= 5) {
1009 /* Wait for the microcode to wake up. */
1010 for (i = 0; i < 100; i++) {
1011 ucstat = b43_shm_read16(dev, B43_SHM_SHARED,
1012 B43_SHM_SH_UCODESTAT);
1013 if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP)
1014 break;
1015 udelay(10);
1016 }
1017 }
1018}
1019
1020/* Turn the Analog ON/OFF */
1021static void b43_switch_analog(struct b43_wldev *dev, int on)
1022{
7b584163
MB		 1023 switch (dev->phy.type) {
1024 case B43_PHYTYPE_A:
1025 case B43_PHYTYPE_G:
1026 b43_write16(dev, B43_MMIO_PHY0, on ? 0 : 0xF4);
1027 break;
1028 case B43_PHYTYPE_N:
1029 b43_phy_write(dev, B43_NPHY_AFECTL_OVER,
1030 on ? 0 : 0x7FFF);
1031 break;
1032 default:
1033 B43_WARN_ON(1);
1034 }
e4d6b795
MB		 1035}
1036
1037void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags)
1038{
1039 u32 tmslow;
1040 u32 macctl;
1041
1042 flags |= B43_TMSLOW_PHYCLKEN;
1043 flags |= B43_TMSLOW_PHYRESET;
1044 ssb_device_enable(dev->dev, flags);
1045 msleep(2); /* Wait for the PLL to turn on. */
1046
1047 /* Now take the PHY out of Reset again */
1048 tmslow = ssb_read32(dev->dev, SSB_TMSLOW);
1049 tmslow |= SSB_TMSLOW_FGC;
1050 tmslow &= ~B43_TMSLOW_PHYRESET;
1051 ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
1052 ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
1053 msleep(1);
1054 tmslow &= ~SSB_TMSLOW_FGC;
1055 ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
1056 ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
1057 msleep(1);
1058
1059 /* Turn Analog ON */
1060 b43_switch_analog(dev, 1);
1061
1062 macctl = b43_read32(dev, B43_MMIO_MACCTL);
1063 macctl &= ~B43_MACCTL_GMODE;
1064 if (flags & B43_TMSLOW_GMODE)
1065 macctl |= B43_MACCTL_GMODE;
1066 macctl |= B43_MACCTL_IHR_ENABLED;
1067 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1068}
1069
1070static void handle_irq_transmit_status(struct b43_wldev *dev)
1071{
1072 u32 v0, v1;
1073 u16 tmp;
1074 struct b43_txstatus stat;
1075
1076 while (1) {
1077 v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1078 if (!(v0 & 0x00000001))
1079 break;
1080 v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1081
1082 stat.cookie = (v0 >> 16);
1083 stat.seq = (v1 & 0x0000FFFF);
1084 stat.phy_stat = ((v1 & 0x00FF0000) >> 16);
1085 tmp = (v0 & 0x0000FFFF);
1086 stat.frame_count = ((tmp & 0xF000) >> 12);
1087 stat.rts_count = ((tmp & 0x0F00) >> 8);
1088 stat.supp_reason = ((tmp & 0x001C) >> 2);
1089 stat.pm_indicated = !!(tmp & 0x0080);
1090 stat.intermediate = !!(tmp & 0x0040);
1091 stat.for_ampdu = !!(tmp & 0x0020);
1092 stat.acked = !!(tmp & 0x0002);
1093
1094 b43_handle_txstatus(dev, &stat);
1095 }
1096}
1097
1098static void drain_txstatus_queue(struct b43_wldev *dev)
1099{
1100 u32 dummy;
1101
1102 if (dev->dev->id.revision < 5)
1103 return;
1104 /* Read all entries from the microcode TXstatus FIFO
1105 * and throw them away.
1106 */
1107 while (1) {
1108 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1109 if (!(dummy & 0x00000001))
1110 break;
1111 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1112 }
1113}
1114
1115static u32 b43_jssi_read(struct b43_wldev *dev)
1116{
1117 u32 val = 0;
1118
1119 val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A);
1120 val <<= 16;
1121 val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088);
1122
1123 return val;
1124}
1125
1126static void b43_jssi_write(struct b43_wldev *dev, u32 jssi)
1127{
1128 b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF));
1129 b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16);
1130}
1131
1132static void b43_generate_noise_sample(struct b43_wldev *dev)
1133{
1134 b43_jssi_write(dev, 0x7F7F7F7F);
aa6c7ae2
MB		 1135 b43_write32(dev, B43_MMIO_MACCMD,
1136 b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE);
e4d6b795
MB		 1137 B43_WARN_ON(dev->noisecalc.channel_at_start != dev->phy.channel);
1138}
1139
1140static void b43_calculate_link_quality(struct b43_wldev *dev)
1141{
1142 /* Top half of Link Quality calculation. */
1143
1144 if (dev->noisecalc.calculation_running)
1145 return;
1146 dev->noisecalc.channel_at_start = dev->phy.channel;
1147 dev->noisecalc.calculation_running = 1;
1148 dev->noisecalc.nr_samples = 0;
1149
1150 b43_generate_noise_sample(dev);
1151}
1152
1153static void handle_irq_noise(struct b43_wldev *dev)
1154{
1155 struct b43_phy *phy = &dev->phy;
1156 u16 tmp;
1157 u8 noise[4];
1158 u8 i, j;
1159 s32 average;
1160
1161 /* Bottom half of Link Quality calculation. */
1162
1163 B43_WARN_ON(!dev->noisecalc.calculation_running);
1164 if (dev->noisecalc.channel_at_start != phy->channel)
1165 goto drop_calculation;
1a09404a 1166 *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev));
e4d6b795
MB		 1167 if (noise[0] == 0x7F || noise[1] == 0x7F ||
1168 noise[2] == 0x7F || noise[3] == 0x7F)
1169 goto generate_new;
1170
1171 /* Get the noise samples. */
1172 B43_WARN_ON(dev->noisecalc.nr_samples >= 8);
1173 i = dev->noisecalc.nr_samples;
1174 noise[0] = limit_value(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1175 noise[1] = limit_value(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1176 noise[2] = limit_value(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1177 noise[3] = limit_value(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1178 dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]];
1179 dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]];
1180 dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]];
1181 dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]];
1182 dev->noisecalc.nr_samples++;
1183 if (dev->noisecalc.nr_samples == 8) {
1184 /* Calculate the Link Quality by the noise samples. */
1185 average = 0;
1186 for (i = 0; i < 8; i++) {
1187 for (j = 0; j < 4; j++)
1188 average += dev->noisecalc.samples[i][j];
1189 }
1190 average /= (8 * 4);
1191 average *= 125;
1192 average += 64;
1193 average /= 128;
1194 tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C);
1195 tmp = (tmp / 128) & 0x1F;
1196 if (tmp >= 8)
1197 average += 2;
1198 else
1199 average -= 25;
1200 if (tmp == 8)
1201 average -= 72;
1202 else
1203 average -= 48;
1204
1205 dev->stats.link_noise = average;
1206 drop_calculation:
1207 dev->noisecalc.calculation_running = 0;
1208 return;
1209 }
1210 generate_new:
1211 b43_generate_noise_sample(dev);
1212}
1213
1214static void handle_irq_tbtt_indication(struct b43_wldev *dev)
1215{
1216 if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) {
1217 ///TODO: PS TBTT
1218 } else {
1219 if (1 /*FIXME: the last PSpoll frame was sent successfully */ )
1220 b43_power_saving_ctl_bits(dev, 0);
1221 }
e4d6b795 1222 if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS))
aa6c7ae2 1223 dev->dfq_valid = 1;
e4d6b795
MB		 1224}
1225
1226static void handle_irq_atim_end(struct b43_wldev *dev)
1227{
aa6c7ae2
MB		 1228 if (dev->dfq_valid) {
1229 b43_write32(dev, B43_MMIO_MACCMD,
1230 b43_read32(dev, B43_MMIO_MACCMD)
1231 | B43_MACCMD_DFQ_VALID);
1232 dev->dfq_valid = 0;
1233 }
e4d6b795
MB		 1234}
1235
1236static void handle_irq_pmq(struct b43_wldev *dev)
1237{
1238 u32 tmp;
1239
1240 //TODO: AP mode.
1241
1242 while (1) {
1243 tmp = b43_read32(dev, B43_MMIO_PS_STATUS);
1244 if (!(tmp & 0x00000008))
1245 break;
1246 }
1247 /* 16bit write is odd, but correct. */
1248 b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002);
1249}
1250
1251static void b43_write_template_common(struct b43_wldev *dev,
1252 const u8 * data, u16 size,
1253 u16 ram_offset,
1254 u16 shm_size_offset, u8 rate)
1255{
1256 u32 i, tmp;
1257 struct b43_plcp_hdr4 plcp;
1258
1259 plcp.data = 0;
1260 b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
1261 b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data));
1262 ram_offset += sizeof(u32);
1263 /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet.
1264 * So leave the first two bytes of the next write blank.
1265 */
1266 tmp = (u32) (data[0]) << 16;
1267 tmp |= (u32) (data[1]) << 24;
1268 b43_ram_write(dev, ram_offset, tmp);
1269 ram_offset += sizeof(u32);
1270 for (i = 2; i < size; i += sizeof(u32)) {
1271 tmp = (u32) (data[i + 0]);
1272 if (i + 1 < size)
1273 tmp |= (u32) (data[i + 1]) << 8;
1274 if (i + 2 < size)
1275 tmp |= (u32) (data[i + 2]) << 16;
1276 if (i + 3 < size)
1277 tmp |= (u32) (data[i + 3]) << 24;
1278 b43_ram_write(dev, ram_offset + i - 2, tmp);
1279 }
1280 b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset,
1281 size + sizeof(struct b43_plcp_hdr6));
1282}
1283
1284static void b43_write_beacon_template(struct b43_wldev *dev,
1285 u16 ram_offset,
1286 u16 shm_size_offset, u8 rate)
1287{
47f76ca3 1288 unsigned int i, len, variable_len;
e66fee6a
MB		 1289 const struct ieee80211_mgmt *bcn;
1290 const u8 *ie;
1291 bool tim_found = 0;
e4d6b795 1292
e66fee6a
MB		 1293 bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data);
1294 len = min((size_t) dev->wl->current_beacon->len,
e4d6b795 1295 0x200 - sizeof(struct b43_plcp_hdr6));
e66fee6a
MB		 1296
1297 b43_write_template_common(dev, (const u8 *)bcn,
e4d6b795 1298 len, ram_offset, shm_size_offset, rate);
e66fee6a
MB		 1299
1300 /* Find the position of the TIM and the DTIM_period value
1301 * and write them to SHM. */
1302 ie = bcn->u.beacon.variable;
47f76ca3
MB		 1303 variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
1304 for (i = 0; i < variable_len - 2; ) {
e66fee6a
MB		 1305 uint8_t ie_id, ie_len;
1306
1307 ie_id = ie[i];
1308 ie_len = ie[i + 1];
1309 if (ie_id == 5) {
1310 u16 tim_position;
1311 u16 dtim_period;
1312 /* This is the TIM Information Element */
1313
1314 /* Check whether the ie_len is in the beacon data range. */
47f76ca3 1315 if (variable_len < ie_len + 2 + i)
e66fee6a
MB		 1316 break;
1317 /* A valid TIM is at least 4 bytes long. */
1318 if (ie_len < 4)
1319 break;
1320 tim_found = 1;
1321
1322 tim_position = sizeof(struct b43_plcp_hdr6);
1323 tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable);
1324 tim_position += i;
1325
1326 dtim_period = ie[i + 3];
1327
1328 b43_shm_write16(dev, B43_SHM_SHARED,
1329 B43_SHM_SH_TIMBPOS, tim_position);
1330 b43_shm_write16(dev, B43_SHM_SHARED,
1331 B43_SHM_SH_DTIMPER, dtim_period);
1332 break;
1333 }
1334 i += ie_len + 2;
1335 }
1336 if (!tim_found) {
1337 b43warn(dev->wl, "Did not find a valid TIM IE in "
1338 "the beacon template packet. AP or IBSS operation "
1339 "may be broken.\n");
1340 }
e4d6b795
MB		 1341}
1342
1343static void b43_write_probe_resp_plcp(struct b43_wldev *dev,
8318d78a
JB		 1344 u16 shm_offset, u16 size,
1345 struct ieee80211_rate *rate)
e4d6b795
MB		 1346{
1347 struct b43_plcp_hdr4 plcp;
1348 u32 tmp;
1349 __le16 dur;
1350
1351 plcp.data = 0;
8318d78a 1352 b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate->hw_value);
e4d6b795 1353 dur = ieee80211_generic_frame_duration(dev->wl->hw,
32bfd35d 1354 dev->wl->vif, size,
8318d78a 1355 rate);
e4d6b795
MB		 1356 /* Write PLCP in two parts and timing for packet transfer */
1357 tmp = le32_to_cpu(plcp.data);
1358 b43_shm_write16(dev, B43_SHM_SHARED, shm_offset, tmp & 0xFFFF);
1359 b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 2, tmp >> 16);
1360 b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 6, le16_to_cpu(dur));
1361}
1362
1363/* Instead of using custom probe response template, this function
1364 * just patches custom beacon template by:
1365 * 1) Changing packet type
1366 * 2) Patching duration field
1367 * 3) Stripping TIM
1368 */
e66fee6a 1369static const u8 * b43_generate_probe_resp(struct b43_wldev *dev,
8318d78a
JB		 1370 u16 *dest_size,
1371 struct ieee80211_rate *rate)
e4d6b795
MB		 1372{
1373 const u8 *src_data;
1374 u8 *dest_data;
1375 u16 src_size, elem_size, src_pos, dest_pos;
1376 __le16 dur;
1377 struct ieee80211_hdr *hdr;
e66fee6a
MB		 1378 size_t ie_start;
1379
1380 src_size = dev->wl->current_beacon->len;
1381 src_data = (const u8 *)dev->wl->current_beacon->data;
e4d6b795 1382
e66fee6a
MB		 1383 /* Get the start offset of the variable IEs in the packet. */
1384 ie_start = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
1385 B43_WARN_ON(ie_start != offsetof(struct ieee80211_mgmt, u.beacon.variable));
e4d6b795 1386
e66fee6a 1387 if (B43_WARN_ON(src_size < ie_start))
e4d6b795 1388 return NULL;
e4d6b795
MB		 1389
1390 dest_data = kmalloc(src_size, GFP_ATOMIC);
1391 if (unlikely(!dest_data))
1392 return NULL;
1393
e66fee6a
MB		 1394 /* Copy the static data and all Information Elements, except the TIM. */
1395 memcpy(dest_data, src_data, ie_start);
1396 src_pos = ie_start;
1397 dest_pos = ie_start;
1398 for ( ; src_pos < src_size - 2; src_pos += elem_size) {
e4d6b795 1399 elem_size = src_data[src_pos + 1] + 2;
e66fee6a
MB		 1400 if (src_data[src_pos] == 5) {
1401 /* This is the TIM. */
1402 continue;
e4d6b795 1403 }
e66fee6a
MB		 1404 memcpy(dest_data + dest_pos, src_data + src_pos,
1405 elem_size);
1406 dest_pos += elem_size;
e4d6b795
MB		 1407 }
1408 *dest_size = dest_pos;
1409 hdr = (struct ieee80211_hdr *)dest_data;
1410
1411 /* Set the frame control. */
1412 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1413 IEEE80211_STYPE_PROBE_RESP);
1414 dur = ieee80211_generic_frame_duration(dev->wl->hw,
32bfd35d 1415 dev->wl->vif, *dest_size,
8318d78a 1416 rate);
e4d6b795
MB		 1417 hdr->duration_id = dur;
1418
1419 return dest_data;
1420}
1421
1422static void b43_write_probe_resp_template(struct b43_wldev *dev,
1423 u16 ram_offset,
8318d78a
JB		 1424 u16 shm_size_offset,
1425 struct ieee80211_rate *rate)
e4d6b795 1426{
e66fee6a 1427 const u8 *probe_resp_data;
e4d6b795
MB		 1428 u16 size;
1429
e66fee6a 1430 size = dev->wl->current_beacon->len;
e4d6b795
MB		 1431 probe_resp_data = b43_generate_probe_resp(dev, &size, rate);
1432 if (unlikely(!probe_resp_data))
1433 return;
1434
1435 /* Looks like PLCP headers plus packet timings are stored for
1436 * all possible basic rates
1437 */
8318d78a
JB		 1438 b43_write_probe_resp_plcp(dev, 0x31A, size, &b43_b_ratetable[0]);
1439 b43_write_probe_resp_plcp(dev, 0x32C, size, &b43_b_ratetable[1]);
1440 b43_write_probe_resp_plcp(dev, 0x33E, size, &b43_b_ratetable[2]);
1441 b43_write_probe_resp_plcp(dev, 0x350, size, &b43_b_ratetable[3]);
e4d6b795
MB		 1442
1443 size = min((size_t) size, 0x200 - sizeof(struct b43_plcp_hdr6));
1444 b43_write_template_common(dev, probe_resp_data,
8318d78a
JB		 1445 size, ram_offset, shm_size_offset,
1446 rate->hw_value);
e4d6b795
MB		 1447 kfree(probe_resp_data);
1448}
1449
d4df6f1a
MB		 1450/* Asynchronously update the packet templates in template RAM.
1451 * Locking: Requires wl->irq_lock to be locked. */
e66fee6a 1452static void b43_update_templates(struct b43_wl *wl, struct sk_buff *beacon)
e4d6b795 1453{
e66fee6a
MB		 1454 /* This is the top half of the ansynchronous beacon update.
1455 * The bottom half is the beacon IRQ.
1456 * Beacon update must be asynchronous to avoid sending an
1457 * invalid beacon. This can happen for example, if the firmware
1458 * transmits a beacon while we are updating it. */
e4d6b795 1459
e66fee6a
MB		 1460 if (wl->current_beacon)
1461 dev_kfree_skb_any(wl->current_beacon);
1462 wl->current_beacon = beacon;
1463 wl->beacon0_uploaded = 0;
1464 wl->beacon1_uploaded = 0;
e4d6b795
MB		 1465}
1466
1467static void b43_set_ssid(struct b43_wldev *dev, const u8 * ssid, u8 ssid_len)
1468{
1469 u32 tmp;
1470 u16 i, len;
1471
1472 len = min((u16) ssid_len, (u16) 0x100);
1473 for (i = 0; i < len; i += sizeof(u32)) {
1474 tmp = (u32) (ssid[i + 0]);
1475 if (i + 1 < len)
1476 tmp |= (u32) (ssid[i + 1]) << 8;
1477 if (i + 2 < len)
1478 tmp |= (u32) (ssid[i + 2]) << 16;
1479 if (i + 3 < len)
1480 tmp |= (u32) (ssid[i + 3]) << 24;
1481 b43_shm_write32(dev, B43_SHM_SHARED, 0x380 + i, tmp);
1482 }
1483 b43_shm_write16(dev, B43_SHM_SHARED, 0x48, len);
1484}
1485
1486static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int)
1487{
1488 b43_time_lock(dev);
1489 if (dev->dev->id.revision >= 3) {
1490 b43_write32(dev, 0x188, (beacon_int << 16));
1491 } else {
1492 b43_write16(dev, 0x606, (beacon_int >> 6));
1493 b43_write16(dev, 0x610, beacon_int);
1494 }
1495 b43_time_unlock(dev);
1496}
1497
1498static void handle_irq_beacon(struct b43_wldev *dev)
1499{
e66fee6a
MB		 1500 struct b43_wl *wl = dev->wl;
1501 u32 cmd;
e4d6b795 1502
e66fee6a 1503 if (!b43_is_mode(wl, IEEE80211_IF_TYPE_AP))
e4d6b795
MB		 1504 return;
1505
e66fee6a 1506 /* This is the bottom half of the asynchronous beacon update. */
e4d6b795 1507
e66fee6a
MB		 1508 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1509 if (!(cmd & B43_MACCMD_BEACON0_VALID)) {
1510 if (!wl->beacon0_uploaded) {
1511 b43_write_beacon_template(dev, 0x68, 0x18,
1512 B43_CCK_RATE_1MB);
1513 b43_write_probe_resp_template(dev, 0x268, 0x4A,
8318d78a 1514 &__b43_ratetable[3]);
e66fee6a
MB		 1515 wl->beacon0_uploaded = 1;
1516 }
1517 cmd |= B43_MACCMD_BEACON0_VALID;
e4d6b795 1518 }
e66fee6a
MB		 1519 if (!(cmd & B43_MACCMD_BEACON1_VALID)) {
1520 if (!wl->beacon1_uploaded) {
1521 b43_write_beacon_template(dev, 0x468, 0x1A,
1522 B43_CCK_RATE_1MB);
1523 wl->beacon1_uploaded = 1;
1524 }
1525 cmd |= B43_MACCMD_BEACON1_VALID;
e4d6b795 1526 }
e66fee6a 1527 b43_write32(dev, B43_MMIO_MACCMD, cmd);
e4d6b795
MB		 1528}
1529
1530static void handle_irq_ucode_debug(struct b43_wldev *dev)
1531{
1532 //TODO
1533}
1534
1535/* Interrupt handler bottom-half */
1536static void b43_interrupt_tasklet(struct b43_wldev *dev)
1537{
1538 u32 reason;
1539 u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
1540 u32 merged_dma_reason = 0;
21954c36 1541 int i;
e4d6b795
MB		 1542 unsigned long flags;
1543
1544 spin_lock_irqsave(&dev->wl->irq_lock, flags);
1545
1546 B43_WARN_ON(b43_status(dev) != B43_STAT_STARTED);
1547
1548 reason = dev->irq_reason;
1549 for (i = 0; i < ARRAY_SIZE(dma_reason); i++) {
1550 dma_reason[i] = dev->dma_reason[i];
1551 merged_dma_reason |= dma_reason[i];
1552 }
1553
1554 if (unlikely(reason & B43_IRQ_MAC_TXERR))
1555 b43err(dev->wl, "MAC transmission error\n");
1556
00e0b8cb 1557 if (unlikely(reason & B43_IRQ_PHY_TXERR)) {
e4d6b795 1558 b43err(dev->wl, "PHY transmission error\n");
00e0b8cb
SB		 1559 rmb();
1560 if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) {
1561 atomic_set(&dev->phy.txerr_cnt,
1562 B43_PHY_TX_BADNESS_LIMIT);
1563 b43err(dev->wl, "Too many PHY TX errors, "
1564 "restarting the controller\n");
1565 b43_controller_restart(dev, "PHY TX errors");
1566 }
1567 }
e4d6b795
MB		 1568
1569 if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK |
1570 B43_DMAIRQ_NONFATALMASK))) {
1571 if (merged_dma_reason & B43_DMAIRQ_FATALMASK) {
1572 b43err(dev->wl, "Fatal DMA error: "
1573 "0x%08X, 0x%08X, 0x%08X, "
1574 "0x%08X, 0x%08X, 0x%08X\n",
1575 dma_reason[0], dma_reason[1],
1576 dma_reason[2], dma_reason[3],
1577 dma_reason[4], dma_reason[5]);
1578 b43_controller_restart(dev, "DMA error");
1579 mmiowb();
1580 spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
1581 return;
1582 }
1583 if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) {
1584 b43err(dev->wl, "DMA error: "
1585 "0x%08X, 0x%08X, 0x%08X, "
1586 "0x%08X, 0x%08X, 0x%08X\n",
1587 dma_reason[0], dma_reason[1],
1588 dma_reason[2], dma_reason[3],
1589 dma_reason[4], dma_reason[5]);
1590 }
1591 }
1592
1593 if (unlikely(reason & B43_IRQ_UCODE_DEBUG))
1594 handle_irq_ucode_debug(dev);
1595 if (reason & B43_IRQ_TBTT_INDI)
1596 handle_irq_tbtt_indication(dev);
1597 if (reason & B43_IRQ_ATIM_END)
1598 handle_irq_atim_end(dev);
1599 if (reason & B43_IRQ_BEACON)
1600 handle_irq_beacon(dev);
1601 if (reason & B43_IRQ_PMQ)
1602 handle_irq_pmq(dev);
21954c36
MB		 1603 if (reason & B43_IRQ_TXFIFO_FLUSH_OK)
1604 ;/* TODO */
1605 if (reason & B43_IRQ_NOISESAMPLE_OK)
e4d6b795
MB		 1606 handle_irq_noise(dev);
1607
1608 /* Check the DMA reason registers for received data. */
5100d5ac
MB		 1609 if (dma_reason[0] & B43_DMAIRQ_RX_DONE) {
1610 if (b43_using_pio_transfers(dev))
1611 b43_pio_rx(dev->pio.rx_queue);
1612 else
1613 b43_dma_rx(dev->dma.rx_ring);
1614 }
e4d6b795
MB		 1615 B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE);
1616 B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE);
b27faf8e 1617 B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE);
e4d6b795
MB		 1618 B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE);
1619 B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE);
1620
21954c36 1621 if (reason & B43_IRQ_TX_OK)
e4d6b795 1622 handle_irq_transmit_status(dev);
e4d6b795 1623
e4d6b795
MB		 1624 b43_interrupt_enable(dev, dev->irq_savedstate);
1625 mmiowb();
1626 spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
1627}
1628
e4d6b795
MB		 1629static void b43_interrupt_ack(struct b43_wldev *dev, u32 reason)
1630{
e4d6b795
MB		 1631 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason);
1632
1633 b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]);
1634 b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]);
1635 b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]);
1636 b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]);
1637 b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]);
1638 b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]);
1639}
1640
1641/* Interrupt handler top-half */
1642static irqreturn_t b43_interrupt_handler(int irq, void *dev_id)
1643{
1644 irqreturn_t ret = IRQ_NONE;
1645 struct b43_wldev *dev = dev_id;
1646 u32 reason;
1647
1648 if (!dev)
1649 return IRQ_NONE;
1650
1651 spin_lock(&dev->wl->irq_lock);
1652
1653 if (b43_status(dev) < B43_STAT_STARTED)
1654 goto out;
1655 reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
1656 if (reason == 0xffffffff) /* shared IRQ */
1657 goto out;
1658 ret = IRQ_HANDLED;
1659 reason &= b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
1660 if (!reason)
1661 goto out;
1662
1663 dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON)
1664 & 0x0001DC00;
1665 dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON)
1666 & 0x0000DC00;
1667 dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON)
1668 & 0x0000DC00;
1669 dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON)
1670 & 0x0001DC00;
1671 dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON)
1672 & 0x0000DC00;
1673 dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON)
1674 & 0x0000DC00;
1675
1676 b43_interrupt_ack(dev, reason);
1677 /* disable all IRQs. They are enabled again in the bottom half. */
1678 dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL);
1679 /* save the reason code and call our bottom half. */
1680 dev->irq_reason = reason;
1681 tasklet_schedule(&dev->isr_tasklet);
1682 out:
1683 mmiowb();
1684 spin_unlock(&dev->wl->irq_lock);
1685
1686 return ret;
1687}
1688
61cb5dd6
MB		 1689static void do_release_fw(struct b43_firmware_file *fw)
1690{
1691 release_firmware(fw->data);
1692 fw->data = NULL;
1693 fw->filename = NULL;
1694}
1695
e4d6b795
MB		 1696static void b43_release_firmware(struct b43_wldev *dev)
1697{
61cb5dd6
MB		 1698 do_release_fw(&dev->fw.ucode);
1699 do_release_fw(&dev->fw.pcm);
1700 do_release_fw(&dev->fw.initvals);
1701 do_release_fw(&dev->fw.initvals_band);
e4d6b795
MB		 1702}
1703
eb189d8b 1704static void b43_print_fw_helptext(struct b43_wl *wl, bool error)
e4d6b795 1705{
eb189d8b
MB		 1706 const char *text;
1707
1708 text = "You must go to "
354807e0 1709 "http://linuxwireless.org/en/users/Drivers/b43#devicefirmware "
eb189d8b
MB		 1710 "and download the latest firmware (version 4).\n";
1711 if (error)
1712 b43err(wl, text);
1713 else
1714 b43warn(wl, text);
e4d6b795
MB		 1715}
1716
1717static int do_request_fw(struct b43_wldev *dev,
1718 const char *name,
61cb5dd6 1719 struct b43_firmware_file *fw)
e4d6b795 1720{
1a09404a 1721 char path[sizeof(modparam_fwpostfix) + 32];
61cb5dd6 1722 const struct firmware *blob;
e4d6b795
MB		 1723 struct b43_fw_header *hdr;
1724 u32 size;
1725 int err;
1726
61cb5dd6
MB		 1727 if (!name) {
1728 /* Don't fetch anything. Free possibly cached firmware. */
1729 do_release_fw(fw);
e4d6b795 1730 return 0;
61cb5dd6
MB		 1731 }
1732 if (fw->filename) {
1733 if (strcmp(fw->filename, name) == 0)
1734 return 0; /* Already have this fw. */
1735 /* Free the cached firmware first. */
1736 do_release_fw(fw);
1737 }
e4d6b795
MB		 1738
1739 snprintf(path, ARRAY_SIZE(path),
1740 "b43%s/%s.fw",
1741 modparam_fwpostfix, name);
61cb5dd6 1742 err = request_firmware(&blob, path, dev->dev->dev);
e4d6b795
MB		 1743 if (err) {
1744 b43err(dev->wl, "Firmware file \"%s\" not found "
1745 "or load failed.\n", path);
1746 return err;
1747 }
61cb5dd6 1748 if (blob->size < sizeof(struct b43_fw_header))
e4d6b795 1749 goto err_format;
61cb5dd6 1750 hdr = (struct b43_fw_header *)(blob->data);
e4d6b795
MB		 1751 switch (hdr->type) {
1752 case B43_FW_TYPE_UCODE:
1753 case B43_FW_TYPE_PCM:
1754 size = be32_to_cpu(hdr->size);
61cb5dd6 1755 if (size != blob->size - sizeof(struct b43_fw_header))
e4d6b795
MB		 1756 goto err_format;
1757 /* fallthrough */
1758 case B43_FW_TYPE_IV:
1759 if (hdr->ver != 1)
1760 goto err_format;
1761 break;
1762 default:
1763 goto err_format;
1764 }
1765
61cb5dd6
MB		 1766 fw->data = blob;
1767 fw->filename = name;
1768
1769 return 0;
e4d6b795
MB		 1770
1771err_format:
1772 b43err(dev->wl, "Firmware file \"%s\" format error.\n", path);
61cb5dd6
MB		 1773 release_firmware(blob);
1774
e4d6b795
MB		 1775 return -EPROTO;
1776}
1777
1778static int b43_request_firmware(struct b43_wldev *dev)
1779{
1780 struct b43_firmware *fw = &dev->fw;
1781 const u8 rev = dev->dev->id.revision;
1782 const char *filename;
1783 u32 tmshigh;
1784 int err;
1785
61cb5dd6 1786 /* Get microcode */
e4d6b795 1787 tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);
61cb5dd6
MB		 1788 if ((rev >= 5) && (rev <= 10))
1789 filename = "ucode5";
1790 else if ((rev >= 11) && (rev <= 12))
1791 filename = "ucode11";
1792 else if (rev >= 13)
1793 filename = "ucode13";
1794 else
1795 goto err_no_ucode;
1796 err = do_request_fw(dev, filename, &fw->ucode);
1797 if (err)
1798 goto err_load;
1799
1800 /* Get PCM code */
1801 if ((rev >= 5) && (rev <= 10))
1802 filename = "pcm5";
1803 else if (rev >= 11)
1804 filename = NULL;
1805 else
1806 goto err_no_pcm;
1807 err = do_request_fw(dev, filename, &fw->pcm);
1808 if (err)
1809 goto err_load;
1810
1811 /* Get initvals */
1812 switch (dev->phy.type) {
1813 case B43_PHYTYPE_A:
1814 if ((rev >= 5) && (rev <= 10)) {
1815 if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
1816 filename = "a0g1initvals5";
1817 else
1818 filename = "a0g0initvals5";
1819 } else
1820 goto err_no_initvals;
1821 break;
1822 case B43_PHYTYPE_G:
e4d6b795 1823 if ((rev >= 5) && (rev <= 10))
61cb5dd6 1824 filename = "b0g0initvals5";
e4d6b795 1825 else if (rev >= 13)
61cb5dd6 1826 filename = "lp0initvals13";
e4d6b795 1827 else
61cb5dd6
MB		 1828 goto err_no_initvals;
1829 break;
1830 case B43_PHYTYPE_N:
1831 if ((rev >= 11) && (rev <= 12))
1832 filename = "n0initvals11";
1833 else
1834 goto err_no_initvals;
1835 break;
1836 default:
1837 goto err_no_initvals;
e4d6b795 1838 }
61cb5dd6
MB		 1839 err = do_request_fw(dev, filename, &fw->initvals);
1840 if (err)
1841 goto err_load;
1842
1843 /* Get bandswitch initvals */
1844 switch (dev->phy.type) {
1845 case B43_PHYTYPE_A:
1846 if ((rev >= 5) && (rev <= 10)) {
1847 if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
1848 filename = "a0g1bsinitvals5";
1849 else
1850 filename = "a0g0bsinitvals5";
1851 } else if (rev >= 11)
1852 filename = NULL;
1853 else
1854 goto err_no_initvals;
1855 break;
1856 case B43_PHYTYPE_G:
e4d6b795 1857 if ((rev >= 5) && (rev <= 10))
61cb5dd6 1858 filename = "b0g0bsinitvals5";
e4d6b795
MB		 1859 else if (rev >= 11)
1860 filename = NULL;
1861 else
e4d6b795 1862 goto err_no_initvals;
61cb5dd6
MB		 1863 break;
1864 case B43_PHYTYPE_N:
1865 if ((rev >= 11) && (rev <= 12))
1866 filename = "n0bsinitvals11";
1867 else
e4d6b795 1868 goto err_no_initvals;
61cb5dd6
MB		 1869 break;
1870 default:
1871 goto err_no_initvals;
e4d6b795 1872 }
61cb5dd6
MB		 1873 err = do_request_fw(dev, filename, &fw->initvals_band);
1874 if (err)
1875 goto err_load;
e4d6b795
MB		 1876
1877 return 0;
1878
1879err_load:
eb189d8b 1880 b43_print_fw_helptext(dev->wl, 1);
e4d6b795
MB		 1881 goto error;
1882
1883err_no_ucode:
1884 err = -ENODEV;
1885 b43err(dev->wl, "No microcode available for core rev %u\n", rev);
1886 goto error;
1887
1888err_no_pcm:
1889 err = -ENODEV;
1890 b43err(dev->wl, "No PCM available for core rev %u\n", rev);
1891 goto error;
1892
1893err_no_initvals:
1894 err = -ENODEV;
1895 b43err(dev->wl, "No Initial Values firmware file for PHY %u, "
1896 "core rev %u\n", dev->phy.type, rev);
1897 goto error;
1898
1899error:
1900 b43_release_firmware(dev);
1901 return err;
1902}
1903
1904static int b43_upload_microcode(struct b43_wldev *dev)
1905{
1906 const size_t hdr_len = sizeof(struct b43_fw_header);
1907 const __be32 *data;
1908 unsigned int i, len;
1909 u16 fwrev, fwpatch, fwdate, fwtime;
1f7d87b0 1910 u32 tmp, macctl;
e4d6b795
MB		 1911 int err = 0;
1912
1f7d87b0
MB		 1913 /* Jump the microcode PSM to offset 0 */
1914 macctl = b43_read32(dev, B43_MMIO_MACCTL);
1915 B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN);
1916 macctl |= B43_MACCTL_PSM_JMP0;
1917 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1918 /* Zero out all microcode PSM registers and shared memory. */
1919 for (i = 0; i < 64; i++)
1920 b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0);
1921 for (i = 0; i < 4096; i += 2)
1922 b43_shm_write16(dev, B43_SHM_SHARED, i, 0);
1923
e4d6b795 1924 /* Upload Microcode. */
61cb5dd6
MB		 1925 data = (__be32 *) (dev->fw.ucode.data->data + hdr_len);
1926 len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32);
e4d6b795
MB		 1927 b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000);
1928 for (i = 0; i < len; i++) {
1929 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
1930 udelay(10);
1931 }
1932
61cb5dd6 1933 if (dev->fw.pcm.data) {
e4d6b795 1934 /* Upload PCM data. */
61cb5dd6
MB		 1935 data = (__be32 *) (dev->fw.pcm.data->data + hdr_len);
1936 len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32);
e4d6b795
MB		 1937 b43_shm_control_word(dev, B43_SHM_HW, 0x01EA);
1938 b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000);
1939 /* No need for autoinc bit in SHM_HW */
1940 b43_shm_control_word(dev, B43_SHM_HW, 0x01EB);
1941 for (i = 0; i < len; i++) {
1942 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
1943 udelay(10);
1944 }
1945 }
1946
1947 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL);
1f7d87b0
MB		 1948
1949 /* Start the microcode PSM */
1950 macctl = b43_read32(dev, B43_MMIO_MACCTL);
1951 macctl &= ~B43_MACCTL_PSM_JMP0;
1952 macctl |= B43_MACCTL_PSM_RUN;
1953 b43_write32(dev, B43_MMIO_MACCTL, macctl);
e4d6b795
MB		 1954
1955 /* Wait for the microcode to load and respond */
1956 i = 0;
1957 while (1) {
1958 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
1959 if (tmp == B43_IRQ_MAC_SUSPENDED)
1960 break;
1961 i++;
1f7d87b0 1962 if (i >= 20) {
e4d6b795 1963 b43err(dev->wl, "Microcode not responding\n");
eb189d8b 1964 b43_print_fw_helptext(dev->wl, 1);
e4d6b795 1965 err = -ENODEV;
1f7d87b0
MB		 1966 goto error;
1967 }
1968 msleep_interruptible(50);
1969 if (signal_pending(current)) {
1970 err = -EINTR;
1971 goto error;
e4d6b795 1972 }
e4d6b795
MB		 1973 }
1974 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */
1975
1976 /* Get and check the revisions. */
1977 fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV);
1978 fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH);
1979 fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE);
1980 fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME);
1981
1982 if (fwrev <= 0x128) {
1983 b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from "
1984 "binary drivers older than version 4.x is unsupported. "
1985 "You must upgrade your firmware files.\n");
eb189d8b 1986 b43_print_fw_helptext(dev->wl, 1);
e4d6b795 1987 err = -EOPNOTSUPP;
1f7d87b0 1988 goto error;
e4d6b795 1989 }
588e6cdf
MB		 1990 b43info(dev->wl, "Loading firmware version %u.%u "
1991 "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n",
1992 fwrev, fwpatch,
1993 (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
1994 (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F);
e4d6b795
MB		 1995
1996 dev->fw.rev = fwrev;
1997 dev->fw.patch = fwpatch;
1998
eb189d8b
MB		 1999 if (b43_is_old_txhdr_format(dev)) {
2000 b43warn(dev->wl, "You are using an old firmware image. "
2001 "Support for old firmware will be removed in July 2008.\n");
2002 b43_print_fw_helptext(dev->wl, 0);
2003 }
2004
1f7d87b0
MB		 2005 return 0;
2006
2007error:
2008 macctl = b43_read32(dev, B43_MMIO_MACCTL);
2009 macctl &= ~B43_MACCTL_PSM_RUN;
2010 macctl |= B43_MACCTL_PSM_JMP0;
2011 b43_write32(dev, B43_MMIO_MACCTL, macctl);
2012
e4d6b795
MB		 2013 return err;
2014}
2015
2016static int b43_write_initvals(struct b43_wldev *dev,
2017 const struct b43_iv *ivals,
2018 size_t count,
2019 size_t array_size)
2020{
2021 const struct b43_iv *iv;
2022 u16 offset;
2023 size_t i;
2024 bool bit32;
2025
2026 BUILD_BUG_ON(sizeof(struct b43_iv) != 6);
2027 iv = ivals;
2028 for (i = 0; i < count; i++) {
2029 if (array_size < sizeof(iv->offset_size))
2030 goto err_format;
2031 array_size -= sizeof(iv->offset_size);
2032 offset = be16_to_cpu(iv->offset_size);
2033 bit32 = !!(offset & B43_IV_32BIT);
2034 offset &= B43_IV_OFFSET_MASK;
2035 if (offset >= 0x1000)
2036 goto err_format;
2037 if (bit32) {
2038 u32 value;
2039
2040 if (array_size < sizeof(iv->data.d32))
2041 goto err_format;
2042 array_size -= sizeof(iv->data.d32);
2043
2044 value = be32_to_cpu(get_unaligned(&iv->data.d32));
2045 b43_write32(dev, offset, value);
2046
2047 iv = (const struct b43_iv *)((const uint8_t *)iv +
2048 sizeof(__be16) +
2049 sizeof(__be32));
2050 } else {
2051 u16 value;
2052
2053 if (array_size < sizeof(iv->data.d16))
2054 goto err_format;
2055 array_size -= sizeof(iv->data.d16);
2056
2057 value = be16_to_cpu(iv->data.d16);
2058 b43_write16(dev, offset, value);
2059
2060 iv = (const struct b43_iv *)((const uint8_t *)iv +
2061 sizeof(__be16) +
2062 sizeof(__be16));
2063 }
2064 }
2065 if (array_size)
2066 goto err_format;
2067
2068 return 0;
2069
2070err_format:
2071 b43err(dev->wl, "Initial Values Firmware file-format error.\n");
eb189d8b 2072 b43_print_fw_helptext(dev->wl, 1);
e4d6b795
MB		 2073
2074 return -EPROTO;
2075}
2076
2077static int b43_upload_initvals(struct b43_wldev *dev)
2078{
2079 const size_t hdr_len = sizeof(struct b43_fw_header);
2080 const struct b43_fw_header *hdr;
2081 struct b43_firmware *fw = &dev->fw;
2082 const struct b43_iv *ivals;
2083 size_t count;
2084 int err;
2085
61cb5dd6
MB		 2086 hdr = (const struct b43_fw_header *)(fw->initvals.data->data);
2087 ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len);
e4d6b795
MB		 2088 count = be32_to_cpu(hdr->size);
2089 err = b43_write_initvals(dev, ivals, count,
61cb5dd6 2090 fw->initvals.data->size - hdr_len);
e4d6b795
MB		 2091 if (err)
2092 goto out;
61cb5dd6
MB		 2093 if (fw->initvals_band.data) {
2094 hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data);
2095 ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len);
e4d6b795
MB		 2096 count = be32_to_cpu(hdr->size);
2097 err = b43_write_initvals(dev, ivals, count,
61cb5dd6 2098 fw->initvals_band.data->size - hdr_len);
e4d6b795
MB		 2099 if (err)
2100 goto out;
2101 }
2102out:
2103
2104 return err;
2105}
2106
2107/* Initialize the GPIOs
2108 * http://bcm-specs.sipsolutions.net/GPIO
2109 */
2110static int b43_gpio_init(struct b43_wldev *dev)
2111{
2112 struct ssb_bus *bus = dev->dev->bus;
2113 struct ssb_device *gpiodev, *pcidev = NULL;
2114 u32 mask, set;
2115
2116 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2117 & ~B43_MACCTL_GPOUTSMSK);
2118
e4d6b795
MB		 2119 b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK)
2120 | 0x000F);
2121
2122 mask = 0x0000001F;
2123 set = 0x0000000F;
2124 if (dev->dev->bus->chip_id == 0x4301) {
2125 mask |= 0x0060;
2126 set |= 0x0060;
2127 }
2128 if (0 /* FIXME: conditional unknown */ ) {
2129 b43_write16(dev, B43_MMIO_GPIO_MASK,
2130 b43_read16(dev, B43_MMIO_GPIO_MASK)
2131 | 0x0100);
2132 mask |= 0x0180;
2133 set |= 0x0180;
2134 }
95de2841 2135 if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL) {
e4d6b795
MB		 2136 b43_write16(dev, B43_MMIO_GPIO_MASK,
2137 b43_read16(dev, B43_MMIO_GPIO_MASK)
2138 | 0x0200);
2139 mask |= 0x0200;
2140 set |= 0x0200;
2141 }
2142 if (dev->dev->id.revision >= 2)
2143 mask |= 0x0010; /* FIXME: This is redundant. */
2144
2145#ifdef CONFIG_SSB_DRIVER_PCICORE
2146 pcidev = bus->pcicore.dev;
2147#endif
2148 gpiodev = bus->chipco.dev ? : pcidev;
2149 if (!gpiodev)
2150 return 0;
2151 ssb_write32(gpiodev, B43_GPIO_CONTROL,
2152 (ssb_read32(gpiodev, B43_GPIO_CONTROL)
2153 & mask) | set);
2154
2155 return 0;
2156}
2157
2158/* Turn off all GPIO stuff. Call this on module unload, for example. */
2159static void b43_gpio_cleanup(struct b43_wldev *dev)
2160{
2161 struct ssb_bus *bus = dev->dev->bus;
2162 struct ssb_device *gpiodev, *pcidev = NULL;
2163
2164#ifdef CONFIG_SSB_DRIVER_PCICORE
2165 pcidev = bus->pcicore.dev;
2166#endif
2167 gpiodev = bus->chipco.dev ? : pcidev;
2168 if (!gpiodev)
2169 return;
2170 ssb_write32(gpiodev, B43_GPIO_CONTROL, 0);
2171}
2172
2173/* http://bcm-specs.sipsolutions.net/EnableMac */
affe0a02 2174static void b43_mac_enable(struct b43_wldev *dev)
e4d6b795
MB		 2175{
2176 dev->mac_suspended--;
2177 B43_WARN_ON(dev->mac_suspended < 0);
2178 if (dev->mac_suspended == 0) {
2179 b43_write32(dev, B43_MMIO_MACCTL,
2180 b43_read32(dev, B43_MMIO_MACCTL)
2181 | B43_MACCTL_ENABLED);
2182 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON,
2183 B43_IRQ_MAC_SUSPENDED);
2184 /* Commit writes */
2185 b43_read32(dev, B43_MMIO_MACCTL);
2186 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2187 b43_power_saving_ctl_bits(dev, 0);
05b64b36
MB		 2188
2189 /* Re-enable IRQs. */
2190 spin_lock_irq(&dev->wl->irq_lock);
2191 b43_interrupt_enable(dev, dev->irq_savedstate);
2192 spin_unlock_irq(&dev->wl->irq_lock);
e4d6b795
MB		 2193 }
2194}
2195
2196/* http://bcm-specs.sipsolutions.net/SuspendMAC */
affe0a02 2197static void b43_mac_suspend(struct b43_wldev *dev)
e4d6b795
MB		 2198{
2199 int i;
2200 u32 tmp;
2201
05b64b36 2202 might_sleep();
e4d6b795 2203 B43_WARN_ON(dev->mac_suspended < 0);
05b64b36 2204
e4d6b795 2205 if (dev->mac_suspended == 0) {
05b64b36
MB		 2206 /* Mask IRQs before suspending MAC. Otherwise
2207 * the MAC stays busy and won't suspend. */
2208 spin_lock_irq(&dev->wl->irq_lock);
2209 tmp = b43_interrupt_disable(dev, B43_IRQ_ALL);
2210 spin_unlock_irq(&dev->wl->irq_lock);
2211 b43_synchronize_irq(dev);
2212 dev->irq_savedstate = tmp;
2213
e4d6b795
MB		 2214 b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
2215 b43_write32(dev, B43_MMIO_MACCTL,
2216 b43_read32(dev, B43_MMIO_MACCTL)
2217 & ~B43_MACCTL_ENABLED);
2218 /* force pci to flush the write */
2219 b43_read32(dev, B43_MMIO_MACCTL);
05b64b36 2220 for (i = 40; i; i--) {
e4d6b795
MB		 2221 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2222 if (tmp & B43_IRQ_MAC_SUSPENDED)
2223 goto out;
05b64b36 2224 msleep(1);
e4d6b795
MB		 2225 }
2226 b43err(dev->wl, "MAC suspend failed\n");
2227 }
05b64b36 2228out:
e4d6b795
MB		 2229 dev->mac_suspended++;
2230}
2231
2232static void b43_adjust_opmode(struct b43_wldev *dev)
2233{
2234 struct b43_wl *wl = dev->wl;
2235 u32 ctl;
2236 u16 cfp_pretbtt;
2237
2238 ctl = b43_read32(dev, B43_MMIO_MACCTL);
2239 /* Reset status to STA infrastructure mode. */
2240 ctl &= ~B43_MACCTL_AP;
2241 ctl &= ~B43_MACCTL_KEEP_CTL;
2242 ctl &= ~B43_MACCTL_KEEP_BADPLCP;
2243 ctl &= ~B43_MACCTL_KEEP_BAD;
2244 ctl &= ~B43_MACCTL_PROMISC;
4150c572 2245 ctl &= ~B43_MACCTL_BEACPROMISC;
e4d6b795
MB		 2246 ctl |= B43_MACCTL_INFRA;
2247
4150c572
JB		 2248 if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP))
2249 ctl |= B43_MACCTL_AP;
2250 else if (b43_is_mode(wl, IEEE80211_IF_TYPE_IBSS))
2251 ctl &= ~B43_MACCTL_INFRA;
2252
2253 if (wl->filter_flags & FIF_CONTROL)
e4d6b795 2254 ctl |= B43_MACCTL_KEEP_CTL;
4150c572
JB		 2255 if (wl->filter_flags & FIF_FCSFAIL)
2256 ctl |= B43_MACCTL_KEEP_BAD;
2257 if (wl->filter_flags & FIF_PLCPFAIL)
2258 ctl |= B43_MACCTL_KEEP_BADPLCP;
2259 if (wl->filter_flags & FIF_PROMISC_IN_BSS)
e4d6b795 2260 ctl |= B43_MACCTL_PROMISC;
4150c572
JB		 2261 if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
2262 ctl |= B43_MACCTL_BEACPROMISC;
2263
e4d6b795
MB		 2264 /* Workaround: On old hardware the HW-MAC-address-filter
2265 * doesn't work properly, so always run promisc in filter
2266 * it in software. */
2267 if (dev->dev->id.revision <= 4)
2268 ctl |= B43_MACCTL_PROMISC;
2269
2270 b43_write32(dev, B43_MMIO_MACCTL, ctl);
2271
2272 cfp_pretbtt = 2;
2273 if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) {
2274 if (dev->dev->bus->chip_id == 0x4306 &&
2275 dev->dev->bus->chip_rev == 3)
2276 cfp_pretbtt = 100;
2277 else
2278 cfp_pretbtt = 50;
2279 }
2280 b43_write16(dev, 0x612, cfp_pretbtt);
2281}
2282
2283static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm)
2284{
2285 u16 offset;
2286
2287 if (is_ofdm) {
2288 offset = 0x480;
2289 offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
2290 } else {
2291 offset = 0x4C0;
2292 offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
2293 }
2294 b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20,
2295 b43_shm_read16(dev, B43_SHM_SHARED, offset));
2296}
2297
2298static void b43_rate_memory_init(struct b43_wldev *dev)
2299{
2300 switch (dev->phy.type) {
2301 case B43_PHYTYPE_A:
2302 case B43_PHYTYPE_G:
53a6e234 2303 case B43_PHYTYPE_N:
e4d6b795
MB		 2304 b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1);
2305 b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1);
2306 b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1);
2307 b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1);
2308 b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1);
2309 b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1);
2310 b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1);
2311 if (dev->phy.type == B43_PHYTYPE_A)
2312 break;
2313 /* fallthrough */
2314 case B43_PHYTYPE_B:
2315 b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0);
2316 b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0);
2317 b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0);
2318 b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0);
2319 break;
2320 default:
2321 B43_WARN_ON(1);
2322 }
2323}
2324
2325/* Set the TX-Antenna for management frames sent by firmware. */
2326static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna)
2327{
2328 u16 ant = 0;
2329 u16 tmp;
2330
2331 switch (antenna) {
2332 case B43_ANTENNA0:
eb189d8b 2333 ant |= B43_TXH_PHY_ANT0;
e4d6b795
MB		 2334 break;
2335 case B43_ANTENNA1:
eb189d8b
MB		 2336 ant |= B43_TXH_PHY_ANT1;
2337 break;
2338 case B43_ANTENNA2:
2339 ant |= B43_TXH_PHY_ANT2;
2340 break;
2341 case B43_ANTENNA3:
2342 ant |= B43_TXH_PHY_ANT3;
e4d6b795
MB		 2343 break;
2344 case B43_ANTENNA_AUTO:
eb189d8b 2345 ant |= B43_TXH_PHY_ANT01AUTO;
e4d6b795
MB		 2346 break;
2347 default:
2348 B43_WARN_ON(1);
2349 }
2350
2351 /* FIXME We also need to set the other flags of the PHY control field somewhere. */
2352
2353 /* For Beacons */
2354 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL);
eb189d8b 2355 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
e4d6b795
MB		 2356 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, tmp);
2357 /* For ACK/CTS */
2358 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL);
eb189d8b 2359 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
e4d6b795
MB		 2360 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp);
2361 /* For Probe Resposes */
2362 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL);
eb189d8b 2363 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
e4d6b795
MB		 2364 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp);
2365}
2366
2367/* This is the opposite of b43_chip_init() */
2368static void b43_chip_exit(struct b43_wldev *dev)
2369{
8e9f7529 2370 b43_radio_turn_off(dev, 1);
e4d6b795
MB		 2371 b43_gpio_cleanup(dev);
2372 /* firmware is released later */
2373}
2374
2375/* Initialize the chip
2376 * http://bcm-specs.sipsolutions.net/ChipInit
2377 */
2378static int b43_chip_init(struct b43_wldev *dev)
2379{
2380 struct b43_phy *phy = &dev->phy;
2381 int err, tmp;
1f7d87b0 2382 u32 value32, macctl;
e4d6b795
MB		 2383 u16 value16;
2384
1f7d87b0
MB		 2385 /* Initialize the MAC control */
2386 macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED;
2387 if (dev->phy.gmode)
2388 macctl |= B43_MACCTL_GMODE;
2389 macctl |= B43_MACCTL_INFRA;
2390 b43_write32(dev, B43_MMIO_MACCTL, macctl);
e4d6b795
MB		 2391
2392 err = b43_request_firmware(dev);
2393 if (err)
2394 goto out;
2395 err = b43_upload_microcode(dev);
2396 if (err)
2397 goto out; /* firmware is released later */
2398
2399 err = b43_gpio_init(dev);
2400 if (err)
2401 goto out; /* firmware is released later */
21954c36 2402
e4d6b795
MB		 2403 err = b43_upload_initvals(dev);
2404 if (err)
1a8d1227 2405 goto err_gpio_clean;
e4d6b795 2406 b43_radio_turn_on(dev);
e4d6b795
MB		 2407
2408 b43_write16(dev, 0x03E6, 0x0000);
2409 err = b43_phy_init(dev);
2410 if (err)
2411 goto err_radio_off;
2412
2413 /* Select initial Interference Mitigation. */
2414 tmp = phy->interfmode;
2415 phy->interfmode = B43_INTERFMODE_NONE;
2416 b43_radio_set_interference_mitigation(dev, tmp);
2417
2418 b43_set_rx_antenna(dev, B43_ANTENNA_DEFAULT);
2419 b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT);
2420
2421 if (phy->type == B43_PHYTYPE_B) {
2422 value16 = b43_read16(dev, 0x005E);
2423 value16 |= 0x0004;
2424 b43_write16(dev, 0x005E, value16);
2425 }
2426 b43_write32(dev, 0x0100, 0x01000000);
2427 if (dev->dev->id.revision < 5)
2428 b43_write32(dev, 0x010C, 0x01000000);
2429
2430 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2431 & ~B43_MACCTL_INFRA);
2432 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2433 | B43_MACCTL_INFRA);
e4d6b795 2434
e4d6b795
MB		 2435 /* Probe Response Timeout value */
2436 /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
2437 b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000);
2438
2439 /* Initially set the wireless operation mode. */
2440 b43_adjust_opmode(dev);
2441
2442 if (dev->dev->id.revision < 3) {
2443 b43_write16(dev, 0x060E, 0x0000);
2444 b43_write16(dev, 0x0610, 0x8000);
2445 b43_write16(dev, 0x0604, 0x0000);
2446 b43_write16(dev, 0x0606, 0x0200);
2447 } else {
2448 b43_write32(dev, 0x0188, 0x80000000);
2449 b43_write32(dev, 0x018C, 0x02000000);
2450 }
2451 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000);
2452 b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
2453 b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
2454 b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
2455 b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
2456 b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
2457 b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
2458
2459 value32 = ssb_read32(dev->dev, SSB_TMSLOW);
2460 value32 |= 0x00100000;
2461 ssb_write32(dev->dev, SSB_TMSLOW, value32);
2462
2463 b43_write16(dev, B43_MMIO_POWERUP_DELAY,
2464 dev->dev->bus->chipco.fast_pwrup_delay);
2465
2466 err = 0;
2467 b43dbg(dev->wl, "Chip initialized\n");
21954c36 2468out:
e4d6b795
MB		 2469 return err;
2470
21954c36 2471err_radio_off:
8e9f7529 2472 b43_radio_turn_off(dev, 1);
1a8d1227 2473err_gpio_clean:
e4d6b795 2474 b43_gpio_cleanup(dev);
21954c36 2475 return err;
e4d6b795
MB		 2476}
2477
2478static void b43_periodic_every120sec(struct b43_wldev *dev)
2479{
2480 struct b43_phy *phy = &dev->phy;
2481
2482 if (phy->type != B43_PHYTYPE_G || phy->rev < 2)
2483 return;
2484
2485 b43_mac_suspend(dev);
2486 b43_lo_g_measure(dev);
2487 b43_mac_enable(dev);
2488 if (b43_has_hardware_pctl(phy))
2489 b43_lo_g_ctl_mark_all_unused(dev);
2490}
2491
2492static void b43_periodic_every60sec(struct b43_wldev *dev)
2493{
2494 struct b43_phy *phy = &dev->phy;
2495
53a6e234
MB		 2496 if (phy->type != B43_PHYTYPE_G)
2497 return;
e4d6b795
MB		 2498 if (!b43_has_hardware_pctl(phy))
2499 b43_lo_g_ctl_mark_all_unused(dev);
95de2841 2500 if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_RSSI) {
e4d6b795
MB		 2501 b43_mac_suspend(dev);
2502 b43_calc_nrssi_slope(dev);
2503 if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 8)) {
2504 u8 old_chan = phy->channel;
2505
2506 /* VCO Calibration */
2507 if (old_chan >= 8)
2508 b43_radio_selectchannel(dev, 1, 0);
2509 else
2510 b43_radio_selectchannel(dev, 13, 0);
2511 b43_radio_selectchannel(dev, old_chan, 0);
2512 }
2513 b43_mac_enable(dev);
2514 }
2515}
2516
2517static void b43_periodic_every30sec(struct b43_wldev *dev)
2518{
2519 /* Update device statistics. */
2520 b43_calculate_link_quality(dev);
2521}
2522
2523static void b43_periodic_every15sec(struct b43_wldev *dev)
2524{
2525 struct b43_phy *phy = &dev->phy;
2526
2527 if (phy->type == B43_PHYTYPE_G) {
2528 //TODO: update_aci_moving_average
2529 if (phy->aci_enable && phy->aci_wlan_automatic) {
2530 b43_mac_suspend(dev);
2531 if (!phy->aci_enable && 1 /*TODO: not scanning? */ ) {
2532 if (0 /*TODO: bunch of conditions */ ) {
2533 b43_radio_set_interference_mitigation
2534 (dev, B43_INTERFMODE_MANUALWLAN);
2535 }
2536 } else if (1 /*TODO*/) {
2537 /*
2538 if ((aci_average > 1000) && !(b43_radio_aci_scan(dev))) {
2539 b43_radio_set_interference_mitigation(dev,
2540 B43_INTERFMODE_NONE);
2541 }
2542 */
2543 }
2544 b43_mac_enable(dev);
2545 } else if (phy->interfmode == B43_INTERFMODE_NONWLAN &&
2546 phy->rev == 1) {
2547 //TODO: implement rev1 workaround
2548 }
2549 }
2550 b43_phy_xmitpower(dev); //FIXME: unless scanning?
2551 //TODO for APHY (temperature?)
00e0b8cb
SB		 2552
2553 atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
2554 wmb();
e4d6b795
MB		 2555}
2556
e4d6b795
MB		 2557static void do_periodic_work(struct b43_wldev *dev)
2558{
2559 unsigned int state;
2560
2561 state = dev->periodic_state;
42bb4cd5 2562 if (state % 8 == 0)
e4d6b795 2563 b43_periodic_every120sec(dev);
42bb4cd5 2564 if (state % 4 == 0)
e4d6b795 2565 b43_periodic_every60sec(dev);
42bb4cd5 2566 if (state % 2 == 0)
e4d6b795 2567 b43_periodic_every30sec(dev);
42bb4cd5 2568 b43_periodic_every15sec(dev);
e4d6b795
MB		 2569}
2570
05b64b36
MB		 2571/* Periodic work locking policy:
2572 * The whole periodic work handler is protected by
2573 * wl->mutex. If another lock is needed somewhere in the
2574 * pwork callchain, it's aquired in-place, where it's needed.
e4d6b795 2575 */
e4d6b795
MB		 2576static void b43_periodic_work_handler(struct work_struct *work)
2577{
05b64b36
MB		 2578 struct b43_wldev *dev = container_of(work, struct b43_wldev,
2579 periodic_work.work);
2580 struct b43_wl *wl = dev->wl;
2581 unsigned long delay;
e4d6b795 2582
05b64b36 2583 mutex_lock(&wl->mutex);
e4d6b795
MB		 2584
2585 if (unlikely(b43_status(dev) != B43_STAT_STARTED))
2586 goto out;
2587 if (b43_debug(dev, B43_DBG_PWORK_STOP))
2588 goto out_requeue;
2589
05b64b36 2590 do_periodic_work(dev);
e4d6b795 2591
e4d6b795 2592 dev->periodic_state++;
42bb4cd5 2593out_requeue:
e4d6b795
MB		 2594 if (b43_debug(dev, B43_DBG_PWORK_FAST))
2595 delay = msecs_to_jiffies(50);
2596 else
82cd682d 2597 delay = round_jiffies_relative(HZ * 15);
05b64b36 2598 queue_delayed_work(wl->hw->workqueue, &dev->periodic_work, delay);
42bb4cd5 2599out:
05b64b36 2600 mutex_unlock(&wl->mutex);
e4d6b795
MB		 2601}
2602
2603static void b43_periodic_tasks_setup(struct b43_wldev *dev)
2604{
2605 struct delayed_work *work = &dev->periodic_work;
2606
2607 dev->periodic_state = 0;
2608 INIT_DELAYED_WORK(work, b43_periodic_work_handler);
2609 queue_delayed_work(dev->wl->hw->workqueue, work, 0);
2610}
2611
f3dd3fcc 2612/* Check if communication with the device works correctly. */
e4d6b795
MB		 2613static int b43_validate_chipaccess(struct b43_wldev *dev)
2614{
f3dd3fcc 2615 u32 v, backup;
e4d6b795 2616
f3dd3fcc
MB		 2617 backup = b43_shm_read32(dev, B43_SHM_SHARED, 0);
2618
2619 /* Check for read/write and endianness problems. */
e4d6b795
MB		 2620 b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55);
2621 if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55)
2622 goto error;
f3dd3fcc
MB		 2623 b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA);
2624 if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA)
e4d6b795
MB		 2625 goto error;
2626
f3dd3fcc
MB		 2627 b43_shm_write32(dev, B43_SHM_SHARED, 0, backup);
2628
2629 if ((dev->dev->id.revision >= 3) && (dev->dev->id.revision <= 10)) {
2630 /* The 32bit register shadows the two 16bit registers
2631 * with update sideeffects. Validate this. */
2632 b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA);
2633 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB);
2634 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB)
2635 goto error;
2636 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC)
2637 goto error;
2638 }
2639 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0);
2640
2641 v = b43_read32(dev, B43_MMIO_MACCTL);
2642 v |= B43_MACCTL_GMODE;
2643 if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED))
e4d6b795
MB		 2644 goto error;
2645
2646 return 0;
f3dd3fcc 2647error:
e4d6b795
MB		 2648 b43err(dev->wl, "Failed to validate the chipaccess\n");
2649 return -ENODEV;
2650}
2651
2652static void b43_security_init(struct b43_wldev *dev)
2653{
2654 dev->max_nr_keys = (dev->dev->id.revision >= 5) ? 58 : 20;
2655 B43_WARN_ON(dev->max_nr_keys > ARRAY_SIZE(dev->key));
2656 dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP);
2657 /* KTP is a word address, but we address SHM bytewise.
2658 * So multiply by two.
2659 */
2660 dev->ktp *= 2;
2661 if (dev->dev->id.revision >= 5) {
2662 /* Number of RCMTA address slots */
2663 b43_write16(dev, B43_MMIO_RCMTA_COUNT, dev->max_nr_keys - 8);
2664 }
2665 b43_clear_keys(dev);
2666}
2667
2668static int b43_rng_read(struct hwrng *rng, u32 * data)
2669{
2670 struct b43_wl *wl = (struct b43_wl *)rng->priv;
2671 unsigned long flags;
2672
2673 /* Don't take wl->mutex here, as it could deadlock with
2674 * hwrng internal locking. It's not needed to take
2675 * wl->mutex here, anyway. */
2676
2677 spin_lock_irqsave(&wl->irq_lock, flags);
2678 *data = b43_read16(wl->current_dev, B43_MMIO_RNG);
2679 spin_unlock_irqrestore(&wl->irq_lock, flags);
2680
2681 return (sizeof(u16));
2682}
2683
3506e0c4 2684static void b43_rng_exit(struct b43_wl *wl, bool suspended)
e4d6b795
MB		 2685{
2686 if (wl->rng_initialized)
3506e0c4 2687 __hwrng_unregister(&wl->rng, suspended);
e4d6b795
MB		 2688}
2689
2690static int b43_rng_init(struct b43_wl *wl)
2691{
2692 int err;
2693
2694 snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name),
2695 "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy));
2696 wl->rng.name = wl->rng_name;
2697 wl->rng.data_read = b43_rng_read;
2698 wl->rng.priv = (unsigned long)wl;
2699 wl->rng_initialized = 1;
2700 err = hwrng_register(&wl->rng);
2701 if (err) {
2702 wl->rng_initialized = 0;
2703 b43err(wl, "Failed to register the random "
2704 "number generator (%d)\n", err);
2705 }
2706
2707 return err;
2708}
2709
40faacc4
MB		 2710static int b43_op_tx(struct ieee80211_hw *hw,
2711 struct sk_buff *skb,
2712 struct ieee80211_tx_control *ctl)
e4d6b795
MB		 2713{
2714 struct b43_wl *wl = hw_to_b43_wl(hw);
2715 struct b43_wldev *dev = wl->current_dev;
2716 int err = -ENODEV;
e4d6b795 2717
5100d5ac
MB		 2718 if (unlikely(skb->len < 2 + 2 + 6)) {
2719 /* Too short, this can't be a valid frame. */
2720 return -EINVAL;
2721 }
2722 B43_WARN_ON(skb_shinfo(skb)->nr_frags);
2723
e4d6b795
MB		 2724 if (unlikely(!dev))
2725 goto out;
2726 if (unlikely(b43_status(dev) < B43_STAT_STARTED))
2727 goto out;
5100d5ac
MB		 2728 /* TX is done without a global lock. */
2729 if (b43_using_pio_transfers(dev))
2730 err = b43_pio_tx(dev, skb, ctl);
2731 else
2732 err = b43_dma_tx(dev, skb, ctl);
40faacc4 2733out:
e4d6b795
MB		 2734 if (unlikely(err))
2735 return NETDEV_TX_BUSY;
2736 return NETDEV_TX_OK;
2737}
2738
e6f5b934
MB		 2739/* Locking: wl->irq_lock */
2740static void b43_qos_params_upload(struct b43_wldev *dev,
2741 const struct ieee80211_tx_queue_params *p,
2742 u16 shm_offset)
2743{
2744 u16 params[B43_NR_QOSPARAMS];
2745 int cw_min, cw_max, aifs, bslots, tmp;
2746 unsigned int i;
2747
2748 const u16 aCWmin = 0x0001;
2749 const u16 aCWmax = 0x03FF;
2750
2751 /* Calculate the default values for the parameters, if needed. */
2752 switch (shm_offset) {
2753 case B43_QOS_VOICE:
2754 aifs = (p->aifs == -1) ? 2 : p->aifs;
2755 cw_min = (p->cw_min == 0) ? ((aCWmin + 1) / 4 - 1) : p->cw_min;
2756 cw_max = (p->cw_max == 0) ? ((aCWmin + 1) / 2 - 1) : p->cw_max;
2757 break;
2758 case B43_QOS_VIDEO:
2759 aifs = (p->aifs == -1) ? 2 : p->aifs;
2760 cw_min = (p->cw_min == 0) ? ((aCWmin + 1) / 2 - 1) : p->cw_min;
2761 cw_max = (p->cw_max == 0) ? aCWmin : p->cw_max;
2762 break;
2763 case B43_QOS_BESTEFFORT:
2764 aifs = (p->aifs == -1) ? 3 : p->aifs;
2765 cw_min = (p->cw_min == 0) ? aCWmin : p->cw_min;
2766 cw_max = (p->cw_max == 0) ? aCWmax : p->cw_max;
2767 break;
2768 case B43_QOS_BACKGROUND:
2769 aifs = (p->aifs == -1) ? 7 : p->aifs;
2770 cw_min = (p->cw_min == 0) ? aCWmin : p->cw_min;
2771 cw_max = (p->cw_max == 0) ? aCWmax : p->cw_max;
2772 break;
2773 default:
2774 B43_WARN_ON(1);
2775 return;
2776 }
2777 if (cw_min <= 0)
2778 cw_min = aCWmin;
2779 if (cw_max <= 0)
2780 cw_max = aCWmin;
2781 bslots = b43_read16(dev, B43_MMIO_RNG) % cw_min;
2782
2783 memset(&params, 0, sizeof(params));
2784
2785 params[B43_QOSPARAM_TXOP] = p->txop * 32;
2786 params[B43_QOSPARAM_CWMIN] = cw_min;
2787 params[B43_QOSPARAM_CWMAX] = cw_max;
2788 params[B43_QOSPARAM_CWCUR] = cw_min;
2789 params[B43_QOSPARAM_AIFS] = aifs;
2790 params[B43_QOSPARAM_BSLOTS] = bslots;
2791 params[B43_QOSPARAM_REGGAP] = bslots + aifs;
2792
2793 for (i = 0; i < ARRAY_SIZE(params); i++) {
2794 if (i == B43_QOSPARAM_STATUS) {
2795 tmp = b43_shm_read16(dev, B43_SHM_SHARED,
2796 shm_offset + (i * 2));
2797 /* Mark the parameters as updated. */
2798 tmp |= 0x100;
2799 b43_shm_write16(dev, B43_SHM_SHARED,
2800 shm_offset + (i * 2),
2801 tmp);
2802 } else {
2803 b43_shm_write16(dev, B43_SHM_SHARED,
2804 shm_offset + (i * 2),
2805 params[i]);
2806 }
2807 }
2808}
2809
2810/* Update the QOS parameters in hardware. */
2811static void b43_qos_update(struct b43_wldev *dev)
2812{
2813 struct b43_wl *wl = dev->wl;
2814 struct b43_qos_params *params;
2815 unsigned long flags;
2816 unsigned int i;
2817
2818 /* Mapping of mac80211 queues to b43 SHM offsets. */
2819 static const u16 qos_shm_offsets[] = {
2820 [0] = B43_QOS_VOICE,
2821 [1] = B43_QOS_VIDEO,
2822 [2] = B43_QOS_BESTEFFORT,
2823 [3] = B43_QOS_BACKGROUND,
2824 };
2825 BUILD_BUG_ON(ARRAY_SIZE(qos_shm_offsets) != ARRAY_SIZE(wl->qos_params));
2826
2827 b43_mac_suspend(dev);
2828 spin_lock_irqsave(&wl->irq_lock, flags);
2829
2830 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
2831 params = &(wl->qos_params[i]);
2832 if (params->need_hw_update) {
2833 b43_qos_params_upload(dev, &(params->p),
2834 qos_shm_offsets[i]);
2835 params->need_hw_update = 0;
2836 }
2837 }
2838
2839 spin_unlock_irqrestore(&wl->irq_lock, flags);
2840 b43_mac_enable(dev);
2841}
2842
2843static void b43_qos_clear(struct b43_wl *wl)
2844{
2845 struct b43_qos_params *params;
2846 unsigned int i;
2847
2848 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
2849 params = &(wl->qos_params[i]);
2850
2851 memset(&(params->p), 0, sizeof(params->p));
2852 params->p.aifs = -1;
2853 params->need_hw_update = 1;
2854 }
2855}
2856
2857/* Initialize the core's QOS capabilities */
2858static void b43_qos_init(struct b43_wldev *dev)
2859{
2860 struct b43_wl *wl = dev->wl;
2861 unsigned int i;
2862
2863 /* Upload the current QOS parameters. */
2864 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++)
2865 wl->qos_params[i].need_hw_update = 1;
2866 b43_qos_update(dev);
2867
2868 /* Enable QOS support. */
2869 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF);
2870 b43_write16(dev, B43_MMIO_IFSCTL,
2871 b43_read16(dev, B43_MMIO_IFSCTL)
2872 | B43_MMIO_IFSCTL_USE_EDCF);
2873}
2874
2875static void b43_qos_update_work(struct work_struct *work)
2876{
2877 struct b43_wl *wl = container_of(work, struct b43_wl, qos_update_work);
2878 struct b43_wldev *dev;
2879
2880 mutex_lock(&wl->mutex);
2881 dev = wl->current_dev;
2882 if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED)))
2883 b43_qos_update(dev);
2884 mutex_unlock(&wl->mutex);
2885}
2886
40faacc4 2887static int b43_op_conf_tx(struct ieee80211_hw *hw,
e6f5b934 2888 int _queue,
40faacc4 2889 const struct ieee80211_tx_queue_params *params)
e4d6b795 2890{
e6f5b934
MB		 2891 struct b43_wl *wl = hw_to_b43_wl(hw);
2892 unsigned long flags;
2893 unsigned int queue = (unsigned int)_queue;
2894 struct b43_qos_params *p;
2895
2896 if (queue >= ARRAY_SIZE(wl->qos_params)) {
2897 /* Queue not available or don't support setting
2898 * params on this queue. Return success to not
2899 * confuse mac80211. */
2900 return 0;
2901 }
2902
2903 spin_lock_irqsave(&wl->irq_lock, flags);
2904 p = &(wl->qos_params[queue]);
2905 memcpy(&(p->p), params, sizeof(p->p));
2906 p->need_hw_update = 1;
2907 spin_unlock_irqrestore(&wl->irq_lock, flags);
2908
2909 queue_work(hw->workqueue, &wl->qos_update_work);
2910
e4d6b795
MB		 2911 return 0;
2912}
2913
40faacc4
MB		 2914static int b43_op_get_tx_stats(struct ieee80211_hw *hw,
2915 struct ieee80211_tx_queue_stats *stats)
e4d6b795
MB		 2916{
2917 struct b43_wl *wl = hw_to_b43_wl(hw);
2918 struct b43_wldev *dev = wl->current_dev;
2919 unsigned long flags;
2920 int err = -ENODEV;
2921
2922 if (!dev)
2923 goto out;
2924 spin_lock_irqsave(&wl->irq_lock, flags);
2925 if (likely(b43_status(dev) >= B43_STAT_STARTED)) {
5100d5ac
MB		 2926 if (b43_using_pio_transfers(dev))
2927 b43_pio_get_tx_stats(dev, stats);
2928 else
2929 b43_dma_get_tx_stats(dev, stats);
e4d6b795
MB		 2930 err = 0;
2931 }
2932 spin_unlock_irqrestore(&wl->irq_lock, flags);
40faacc4 2933out:
e4d6b795
MB		 2934 return err;
2935}
2936
40faacc4
MB		 2937static int b43_op_get_stats(struct ieee80211_hw *hw,
2938 struct ieee80211_low_level_stats *stats)
e4d6b795
MB		 2939{
2940 struct b43_wl *wl = hw_to_b43_wl(hw);
2941 unsigned long flags;
2942
2943 spin_lock_irqsave(&wl->irq_lock, flags);
2944 memcpy(stats, &wl->ieee_stats, sizeof(*stats));
2945 spin_unlock_irqrestore(&wl->irq_lock, flags);
2946
2947 return 0;
2948}
2949
e4d6b795
MB		 2950static void b43_put_phy_into_reset(struct b43_wldev *dev)
2951{
2952 struct ssb_device *sdev = dev->dev;
2953 u32 tmslow;
2954
2955 tmslow = ssb_read32(sdev, SSB_TMSLOW);
2956 tmslow &= ~B43_TMSLOW_GMODE;
2957 tmslow |= B43_TMSLOW_PHYRESET;
2958 tmslow |= SSB_TMSLOW_FGC;
2959 ssb_write32(sdev, SSB_TMSLOW, tmslow);
2960 msleep(1);
2961
2962 tmslow = ssb_read32(sdev, SSB_TMSLOW);
2963 tmslow &= ~SSB_TMSLOW_FGC;
2964 tmslow |= B43_TMSLOW_PHYRESET;
2965 ssb_write32(sdev, SSB_TMSLOW, tmslow);
2966 msleep(1);
2967}
2968
bb1eeff1
MB		 2969static const char * band_to_string(enum ieee80211_band band)
2970{
2971 switch (band) {
2972 case IEEE80211_BAND_5GHZ:
2973 return "5";
2974 case IEEE80211_BAND_2GHZ:
2975 return "2.4";
2976 default:
2977 break;
2978 }
2979 B43_WARN_ON(1);
2980 return "";
2981}
2982
e4d6b795 2983/* Expects wl->mutex locked */
bb1eeff1 2984static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan)
e4d6b795 2985{
bb1eeff1 2986 struct b43_wldev *up_dev = NULL;
e4d6b795 2987 struct b43_wldev *down_dev;
bb1eeff1 2988 struct b43_wldev *d;
e4d6b795 2989 int err;
bb1eeff1 2990 bool gmode;
e4d6b795
MB		 2991 int prev_status;
2992
bb1eeff1
MB		 2993 /* Find a device and PHY which supports the band. */
2994 list_for_each_entry(d, &wl->devlist, list) {
2995 switch (chan->band) {
2996 case IEEE80211_BAND_5GHZ:
2997 if (d->phy.supports_5ghz) {
2998 up_dev = d;
2999 gmode = 0;
3000 }
3001 break;
3002 case IEEE80211_BAND_2GHZ:
3003 if (d->phy.supports_2ghz) {
3004 up_dev = d;
3005 gmode = 1;
3006 }
3007 break;
3008 default:
3009 B43_WARN_ON(1);
3010 return -EINVAL;
3011 }
3012 if (up_dev)
3013 break;
3014 }
3015 if (!up_dev) {
3016 b43err(wl, "Could not find a device for %s-GHz band operation\n",
3017 band_to_string(chan->band));
3018 return -ENODEV;
e4d6b795
MB		 3019 }
3020 if ((up_dev == wl->current_dev) &&
3021 (!!wl->current_dev->phy.gmode == !!gmode)) {
3022 /* This device is already running. */
3023 return 0;
3024 }
bb1eeff1
MB		 3025 b43dbg(wl, "Switching to %s-GHz band\n",
3026 band_to_string(chan->band));
e4d6b795
MB		 3027 down_dev = wl->current_dev;
3028
3029 prev_status = b43_status(down_dev);
3030 /* Shutdown the currently running core. */
3031 if (prev_status >= B43_STAT_STARTED)
3032 b43_wireless_core_stop(down_dev);
3033 if (prev_status >= B43_STAT_INITIALIZED)
3034 b43_wireless_core_exit(down_dev);
3035
3036 if (down_dev != up_dev) {
3037 /* We switch to a different core, so we put PHY into
3038 * RESET on the old core. */
3039 b43_put_phy_into_reset(down_dev);
3040 }
3041
3042 /* Now start the new core. */
3043 up_dev->phy.gmode = gmode;
3044 if (prev_status >= B43_STAT_INITIALIZED) {
3045 err = b43_wireless_core_init(up_dev);
3046 if (err) {
3047 b43err(wl, "Fatal: Could not initialize device for "
bb1eeff1
MB		 3048 "selected %s-GHz band\n",
3049 band_to_string(chan->band));
e4d6b795
MB		 3050 goto init_failure;
3051 }
3052 }
3053 if (prev_status >= B43_STAT_STARTED) {
3054 err = b43_wireless_core_start(up_dev);
3055 if (err) {
3056 b43err(wl, "Fatal: Coult not start device for "
bb1eeff1
MB		 3057 "selected %s-GHz band\n",
3058 band_to_string(chan->band));
e4d6b795
MB		 3059 b43_wireless_core_exit(up_dev);
3060 goto init_failure;
3061 }
3062 }
3063 B43_WARN_ON(b43_status(up_dev) != prev_status);
3064
3065 wl->current_dev = up_dev;
3066
3067 return 0;
bb1eeff1 3068init_failure:
e4d6b795
MB		 3069 /* Whoops, failed to init the new core. No core is operating now. */
3070 wl->current_dev = NULL;
3071 return err;
3072}
3073
9db1f6d7
MB		 3074/* Check if the use of the antenna that ieee80211 told us to
3075 * use is possible. This will fall back to DEFAULT.
3076 * "antenna_nr" is the antenna identifier we got from ieee80211. */
3077u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev,
3078 u8 antenna_nr)
e4d6b795 3079{
9db1f6d7
MB		 3080 u8 antenna_mask;
3081
3082 if (antenna_nr == 0) {
3083 /* Zero means "use default antenna". That's always OK. */
3084 return 0;
3085 }
3086
3087 /* Get the mask of available antennas. */
3088 if (dev->phy.gmode)
3089 antenna_mask = dev->dev->bus->sprom.ant_available_bg;
3090 else
3091 antenna_mask = dev->dev->bus->sprom.ant_available_a;
3092
3093 if (!(antenna_mask & (1 << (antenna_nr - 1)))) {
3094 /* This antenna is not available. Fall back to default. */
3095 return 0;
3096 }
3097
3098 return antenna_nr;
3099}
3100
3101static int b43_antenna_from_ieee80211(struct b43_wldev *dev, u8 antenna)
3102{
3103 antenna = b43_ieee80211_antenna_sanitize(dev, antenna);
e4d6b795
MB		 3104 switch (antenna) {
3105 case 0: /* default/diversity */
3106 return B43_ANTENNA_DEFAULT;
3107 case 1: /* Antenna 0 */
3108 return B43_ANTENNA0;
3109 case 2: /* Antenna 1 */
3110 return B43_ANTENNA1;
eb189d8b
MB		 3111 case 3: /* Antenna 2 */
3112 return B43_ANTENNA2;
3113 case 4: /* Antenna 3 */
3114 return B43_ANTENNA3;
e4d6b795
MB		 3115 default:
3116 return B43_ANTENNA_DEFAULT;
3117 }
3118}
3119
40faacc4 3120static int b43_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
e4d6b795
MB		 3121{
3122 struct b43_wl *wl = hw_to_b43_wl(hw);
3123 struct b43_wldev *dev;
3124 struct b43_phy *phy;
3125 unsigned long flags;
9db1f6d7 3126 int antenna;
e4d6b795
MB		 3127 int err = 0;
3128 u32 savedirqs;
3129
e4d6b795
MB		 3130 mutex_lock(&wl->mutex);
3131
bb1eeff1
MB		 3132 /* Switch the band (if necessary). This might change the active core. */
3133 err = b43_switch_band(wl, conf->channel);
e4d6b795
MB		 3134 if (err)
3135 goto out_unlock_mutex;
3136 dev = wl->current_dev;
3137 phy = &dev->phy;
3138
3139 /* Disable IRQs while reconfiguring the device.
3140 * This makes it possible to drop the spinlock throughout
3141 * the reconfiguration process. */
3142 spin_lock_irqsave(&wl->irq_lock, flags);
3143 if (b43_status(dev) < B43_STAT_STARTED) {
3144 spin_unlock_irqrestore(&wl->irq_lock, flags);
3145 goto out_unlock_mutex;
3146 }
3147 savedirqs = b43_interrupt_disable(dev, B43_IRQ_ALL);
3148 spin_unlock_irqrestore(&wl->irq_lock, flags);
3149 b43_synchronize_irq(dev);
3150
3151 /* Switch to the requested channel.
3152 * The firmware takes care of races with the TX handler. */
8318d78a
JB		 3153 if (conf->channel->hw_value != phy->channel)
3154 b43_radio_selectchannel(dev, conf->channel->hw_value, 0);
e4d6b795
MB		 3155
3156 /* Enable/Disable ShortSlot timing. */
3157 if ((!!(conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME)) !=
3158 dev->short_slot) {
3159 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
3160 if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME)
3161 b43_short_slot_timing_enable(dev);
3162 else
3163 b43_short_slot_timing_disable(dev);
3164 }
3165
d42ce84a
JB		 3166 dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_RADIOTAP);
3167
e4d6b795
MB		 3168 /* Adjust the desired TX power level. */
3169 if (conf->power_level != 0) {
3170 if (conf->power_level != phy->power_level) {
3171 phy->power_level = conf->power_level;
3172 b43_phy_xmitpower(dev);
3173 }
3174 }
3175
3176 /* Antennas for RX and management frame TX. */
9db1f6d7
MB		 3177 antenna = b43_antenna_from_ieee80211(dev, conf->antenna_sel_tx);
3178 b43_mgmtframe_txantenna(dev, antenna);
3179 antenna = b43_antenna_from_ieee80211(dev, conf->antenna_sel_rx);
3180 b43_set_rx_antenna(dev, antenna);
e4d6b795
MB		 3181
3182 /* Update templates for AP mode. */
3183 if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP))
3184 b43_set_beacon_int(dev, conf->beacon_int);
3185
fda9abcf
MB		 3186 if (!!conf->radio_enabled != phy->radio_on) {
3187 if (conf->radio_enabled) {
3188 b43_radio_turn_on(dev);
3189 b43info(dev->wl, "Radio turned on by software\n");
3190 if (!dev->radio_hw_enable) {
3191 b43info(dev->wl, "The hardware RF-kill button "
3192 "still turns the radio physically off. "
3193 "Press the button to turn it on.\n");
3194 }
3195 } else {
8e9f7529 3196 b43_radio_turn_off(dev, 0);
fda9abcf
MB		 3197 b43info(dev->wl, "Radio turned off by software\n");
3198 }
3199 }
3200
e4d6b795
MB		 3201 spin_lock_irqsave(&wl->irq_lock, flags);
3202 b43_interrupt_enable(dev, savedirqs);
3203 mmiowb();
3204 spin_unlock_irqrestore(&wl->irq_lock, flags);
3205 out_unlock_mutex:
3206 mutex_unlock(&wl->mutex);
3207
3208 return err;
3209}
3210
40faacc4 3211static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
4150c572
JB		 3212 const u8 *local_addr, const u8 *addr,
3213 struct ieee80211_key_conf *key)
e4d6b795
MB		 3214{
3215 struct b43_wl *wl = hw_to_b43_wl(hw);
c6dfc9a8 3216 struct b43_wldev *dev;
e4d6b795
MB		 3217 unsigned long flags;
3218 u8 algorithm;
3219 u8 index;
c6dfc9a8 3220 int err;
0795af57 3221 DECLARE_MAC_BUF(mac);
e4d6b795
MB		 3222
3223 if (modparam_nohwcrypt)
3224 return -ENOSPC; /* User disabled HW-crypto */
3225
c6dfc9a8
MB		 3226 mutex_lock(&wl->mutex);
3227 spin_lock_irqsave(&wl->irq_lock, flags);
3228
3229 dev = wl->current_dev;
3230 err = -ENODEV;
3231 if (!dev || b43_status(dev) < B43_STAT_INITIALIZED)
3232 goto out_unlock;
3233
3234 err = -EINVAL;
e4d6b795 3235 switch (key->alg) {
e4d6b795
MB		 3236 case ALG_WEP:
3237 if (key->keylen == 5)
3238 algorithm = B43_SEC_ALGO_WEP40;
3239 else
3240 algorithm = B43_SEC_ALGO_WEP104;
3241 break;
3242 case ALG_TKIP:
3243 algorithm = B43_SEC_ALGO_TKIP;
3244 break;
3245 case ALG_CCMP:
3246 algorithm = B43_SEC_ALGO_AES;
3247 break;
3248 default:
3249 B43_WARN_ON(1);
c6dfc9a8 3250 goto out_unlock;
e4d6b795 3251 }
e4d6b795
MB		 3252 index = (u8) (key->keyidx);
3253 if (index > 3)
e4d6b795 3254 goto out_unlock;
e4d6b795
MB		 3255
3256 switch (cmd) {
3257 case SET_KEY:
3258 if (algorithm == B43_SEC_ALGO_TKIP) {
3259 /* FIXME: No TKIP hardware encryption for now. */
3260 err = -EOPNOTSUPP;
3261 goto out_unlock;
3262 }
3263
3264 if (is_broadcast_ether_addr(addr)) {
3265 /* addr is FF:FF:FF:FF:FF:FF for default keys */
3266 err = b43_key_write(dev, index, algorithm,
3267 key->key, key->keylen, NULL, key);
3268 } else {
3269 /*
3270 * either pairwise key or address is 00:00:00:00:00:00
3271 * for transmit-only keys
3272 */
3273 err = b43_key_write(dev, -1, algorithm,
3274 key->key, key->keylen, addr, key);
3275 }
3276 if (err)
3277 goto out_unlock;
3278
3279 if (algorithm == B43_SEC_ALGO_WEP40 ||
3280 algorithm == B43_SEC_ALGO_WEP104) {
3281 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS);
3282 } else {
3283 b43_hf_write(dev,
3284 b43_hf_read(dev) & ~B43_HF_USEDEFKEYS);
3285 }
3286 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
3287 break;
3288 case DISABLE_KEY: {
3289 err = b43_key_clear(dev, key->hw_key_idx);
3290 if (err)
3291 goto out_unlock;
3292 break;
3293 }
3294 default:
3295 B43_WARN_ON(1);
3296 }
3297out_unlock:
3298 spin_unlock_irqrestore(&wl->irq_lock, flags);
3299 mutex_unlock(&wl->mutex);
e4d6b795
MB		 3300 if (!err) {
3301 b43dbg(wl, "%s hardware based encryption for keyidx: %d, "
0795af57 3302 "mac: %s\n",
e4d6b795 3303 cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
0795af57 3304 print_mac(mac, addr));
e4d6b795
MB		 3305 }
3306 return err;
3307}
3308
40faacc4
MB		 3309static void b43_op_configure_filter(struct ieee80211_hw *hw,
3310 unsigned int changed, unsigned int *fflags,
3311 int mc_count, struct dev_addr_list *mc_list)
e4d6b795
MB		 3312{
3313 struct b43_wl *wl = hw_to_b43_wl(hw);
3314 struct b43_wldev *dev = wl->current_dev;
3315 unsigned long flags;
3316
4150c572
JB		 3317 if (!dev) {
3318 *fflags = 0;
e4d6b795 3319 return;
e4d6b795 3320 }
4150c572
JB		 3321
3322 spin_lock_irqsave(&wl->irq_lock, flags);
3323 *fflags &= FIF_PROMISC_IN_BSS |
3324 FIF_ALLMULTI |
3325 FIF_FCSFAIL |
3326 FIF_PLCPFAIL |
3327 FIF_CONTROL |
3328 FIF_OTHER_BSS |
3329 FIF_BCN_PRBRESP_PROMISC;
3330
3331 changed &= FIF_PROMISC_IN_BSS |
3332 FIF_ALLMULTI |
3333 FIF_FCSFAIL |
3334 FIF_PLCPFAIL |
3335 FIF_CONTROL |
3336 FIF_OTHER_BSS |
3337 FIF_BCN_PRBRESP_PROMISC;
3338
3339 wl->filter_flags = *fflags;
3340
3341 if (changed && b43_status(dev) >= B43_STAT_INITIALIZED)
3342 b43_adjust_opmode(dev);
e4d6b795
MB		 3343 spin_unlock_irqrestore(&wl->irq_lock, flags);
3344}
3345
40faacc4 3346static int b43_op_config_interface(struct ieee80211_hw *hw,
32bfd35d 3347 struct ieee80211_vif *vif,
40faacc4 3348 struct ieee80211_if_conf *conf)
e4d6b795
MB		 3349{
3350 struct b43_wl *wl = hw_to_b43_wl(hw);
3351 struct b43_wldev *dev = wl->current_dev;
3352 unsigned long flags;
3353
3354 if (!dev)
3355 return -ENODEV;
3356 mutex_lock(&wl->mutex);
3357 spin_lock_irqsave(&wl->irq_lock, flags);
32bfd35d 3358 B43_WARN_ON(wl->vif != vif);
4150c572
JB		 3359 if (conf->bssid)
3360 memcpy(wl->bssid, conf->bssid, ETH_ALEN);
3361 else
3362 memset(wl->bssid, 0, ETH_ALEN);
3363 if (b43_status(dev) >= B43_STAT_INITIALIZED) {
3364 if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP)) {
3365 B43_WARN_ON(conf->type != IEEE80211_IF_TYPE_AP);
3366 b43_set_ssid(dev, conf->ssid, conf->ssid_len);
3367 if (conf->beacon)
e66fee6a 3368 b43_update_templates(wl, conf->beacon);
e4d6b795 3369 }
4150c572 3370 b43_write_mac_bssid_templates(dev);
e4d6b795
MB		 3371 }
3372 spin_unlock_irqrestore(&wl->irq_lock, flags);
3373 mutex_unlock(&wl->mutex);
3374
3375 return 0;
3376}
3377
3378/* Locking: wl->mutex */
3379static void b43_wireless_core_stop(struct b43_wldev *dev)
3380{
3381 struct b43_wl *wl = dev->wl;
3382 unsigned long flags;
3383
3384 if (b43_status(dev) < B43_STAT_STARTED)
3385 return;
a19d12d7
SB		 3386
3387 /* Disable and sync interrupts. We must do this before than
3388 * setting the status to INITIALIZED, as the interrupt handler
3389 * won't care about IRQs then. */
3390 spin_lock_irqsave(&wl->irq_lock, flags);
3391 dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL);
3392 b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* flush */
3393 spin_unlock_irqrestore(&wl->irq_lock, flags);
3394 b43_synchronize_irq(dev);
3395
e4d6b795
MB		 3396 b43_set_status(dev, B43_STAT_INITIALIZED);
3397
5100d5ac 3398 b43_pio_stop(dev);
e4d6b795
MB		 3399 mutex_unlock(&wl->mutex);
3400 /* Must unlock as it would otherwise deadlock. No races here.
3401 * Cancel the possibly running self-rearming periodic work. */
3402 cancel_delayed_work_sync(&dev->periodic_work);
3403 mutex_lock(&wl->mutex);
3404
3405 ieee80211_stop_queues(wl->hw); //FIXME this could cause a deadlock, as mac80211 seems buggy.
3406
e4d6b795
MB		 3407 b43_mac_suspend(dev);
3408 free_irq(dev->dev->irq, dev);
3409 b43dbg(wl, "Wireless interface stopped\n");
3410}
3411
3412/* Locking: wl->mutex */
3413static int b43_wireless_core_start(struct b43_wldev *dev)
3414{
3415 int err;
3416
3417 B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED);
3418
3419 drain_txstatus_queue(dev);
3420 err = request_irq(dev->dev->irq, b43_interrupt_handler,
3421 IRQF_SHARED, KBUILD_MODNAME, dev);
3422 if (err) {
3423 b43err(dev->wl, "Cannot request IRQ-%d\n", dev->dev->irq);
3424 goto out;
3425 }
3426
3427 /* We are ready to run. */
3428 b43_set_status(dev, B43_STAT_STARTED);
3429
3430 /* Start data flow (TX/RX). */
3431 b43_mac_enable(dev);
3432 b43_interrupt_enable(dev, dev->irq_savedstate);
3433 ieee80211_start_queues(dev->wl->hw);
3434
3435 /* Start maintainance work */
3436 b43_periodic_tasks_setup(dev);
3437
3438 b43dbg(dev->wl, "Wireless interface started\n");
3439 out:
3440 return err;
3441}
3442
3443/* Get PHY and RADIO versioning numbers */
3444static int b43_phy_versioning(struct b43_wldev *dev)
3445{
3446 struct b43_phy *phy = &dev->phy;
3447 u32 tmp;
3448 u8 analog_type;
3449 u8 phy_type;
3450 u8 phy_rev;
3451 u16 radio_manuf;
3452 u16 radio_ver;
3453 u16 radio_rev;
3454 int unsupported = 0;
3455
3456 /* Get PHY versioning */
3457 tmp = b43_read16(dev, B43_MMIO_PHY_VER);
3458 analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT;
3459 phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT;
3460 phy_rev = (tmp & B43_PHYVER_VERSION);
3461 switch (phy_type) {
3462 case B43_PHYTYPE_A:
3463 if (phy_rev >= 4)
3464 unsupported = 1;
3465 break;
3466 case B43_PHYTYPE_B:
3467 if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6
3468 && phy_rev != 7)
3469 unsupported = 1;
3470 break;
3471 case B43_PHYTYPE_G:
013978b6 3472 if (phy_rev > 9)
e4d6b795
MB		 3473 unsupported = 1;
3474 break;
d5c71e46
MB		 3475#ifdef CONFIG_B43_NPHY
3476 case B43_PHYTYPE_N:
3477 if (phy_rev > 1)
3478 unsupported = 1;
3479 break;
3480#endif
e4d6b795
MB		 3481 default:
3482 unsupported = 1;
3483 };
3484 if (unsupported) {
3485 b43err(dev->wl, "FOUND UNSUPPORTED PHY "
3486 "(Analog %u, Type %u, Revision %u)\n",
3487 analog_type, phy_type, phy_rev);
3488 return -EOPNOTSUPP;
3489 }
3490 b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n",
3491 analog_type, phy_type, phy_rev);
3492
3493 /* Get RADIO versioning */
3494 if (dev->dev->bus->chip_id == 0x4317) {
3495 if (dev->dev->bus->chip_rev == 0)
3496 tmp = 0x3205017F;
3497 else if (dev->dev->bus->chip_rev == 1)
3498 tmp = 0x4205017F;
3499 else
3500 tmp = 0x5205017F;
3501 } else {
3502 b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
243dcfcc 3503 tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
e4d6b795 3504 b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
243dcfcc 3505 tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH) << 16;
e4d6b795
MB		 3506 }
3507 radio_manuf = (tmp & 0x00000FFF);
3508 radio_ver = (tmp & 0x0FFFF000) >> 12;
3509 radio_rev = (tmp & 0xF0000000) >> 28;
96c755a3
MB		 3510 if (radio_manuf != 0x17F /* Broadcom */)
3511 unsupported = 1;
e4d6b795
MB		 3512 switch (phy_type) {
3513 case B43_PHYTYPE_A:
3514 if (radio_ver != 0x2060)
3515 unsupported = 1;
3516 if (radio_rev != 1)
3517 unsupported = 1;
3518 if (radio_manuf != 0x17F)
3519 unsupported = 1;
3520 break;
3521 case B43_PHYTYPE_B:
3522 if ((radio_ver & 0xFFF0) != 0x2050)
3523 unsupported = 1;
3524 break;
3525 case B43_PHYTYPE_G:
3526 if (radio_ver != 0x2050)
3527 unsupported = 1;
3528 break;
96c755a3 3529 case B43_PHYTYPE_N:
243dcfcc 3530 if (radio_ver != 0x2055)
96c755a3
MB		 3531 unsupported = 1;
3532 break;
e4d6b795
MB		 3533 default:
3534 B43_WARN_ON(1);
3535 }
3536 if (unsupported) {
3537 b43err(dev->wl, "FOUND UNSUPPORTED RADIO "
3538 "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
3539 radio_manuf, radio_ver, radio_rev);
3540 return -EOPNOTSUPP;
3541 }
3542 b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n",
3543 radio_manuf, radio_ver, radio_rev);
3544
3545 phy->radio_manuf = radio_manuf;
3546 phy->radio_ver = radio_ver;
3547 phy->radio_rev = radio_rev;
3548
3549 phy->analog = analog_type;
3550 phy->type = phy_type;
3551 phy->rev = phy_rev;
3552
3553 return 0;
3554}
3555
3556static void setup_struct_phy_for_init(struct b43_wldev *dev,
3557 struct b43_phy *phy)
3558{
3559 struct b43_txpower_lo_control *lo;
3560 int i;
3561
3562 memset(phy->minlowsig, 0xFF, sizeof(phy->minlowsig));
3563 memset(phy->minlowsigpos, 0, sizeof(phy->minlowsigpos));
3564
e4d6b795
MB		 3565 phy->aci_enable = 0;
3566 phy->aci_wlan_automatic = 0;
3567 phy->aci_hw_rssi = 0;
3568
fda9abcf
MB		 3569 phy->radio_off_context.valid = 0;
3570
e4d6b795
MB		 3571 lo = phy->lo_control;
3572 if (lo) {
3573 memset(lo, 0, sizeof(*(phy->lo_control)));
3574 lo->rebuild = 1;
3575 lo->tx_bias = 0xFF;
3576 }
3577 phy->max_lb_gain = 0;
3578 phy->trsw_rx_gain = 0;
3579 phy->txpwr_offset = 0;
3580
3581 /* NRSSI */
3582 phy->nrssislope = 0;
3583 for (i = 0; i < ARRAY_SIZE(phy->nrssi); i++)
3584 phy->nrssi[i] = -1000;
3585 for (i = 0; i < ARRAY_SIZE(phy->nrssi_lt); i++)
3586 phy->nrssi_lt[i] = i;
3587
3588 phy->lofcal = 0xFFFF;
3589 phy->initval = 0xFFFF;
3590
e4d6b795
MB		 3591 phy->interfmode = B43_INTERFMODE_NONE;
3592 phy->channel = 0xFF;
3593
3594 phy->hardware_power_control = !!modparam_hwpctl;
8ed7fc48
MB		 3595
3596 /* PHY TX errors counter. */
3597 atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
3598
3599 /* OFDM-table address caching. */
3600 phy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_UNKNOWN;
e4d6b795
MB		 3601}
3602
3603static void setup_struct_wldev_for_init(struct b43_wldev *dev)
3604{
aa6c7ae2
MB		 3605 dev->dfq_valid = 0;
3606
6a724d68
MB		 3607 /* Assume the radio is enabled. If it's not enabled, the state will
3608 * immediately get fixed on the first periodic work run. */
3609 dev->radio_hw_enable = 1;
e4d6b795
MB		 3610
3611 /* Stats */
3612 memset(&dev->stats, 0, sizeof(dev->stats));
3613
3614 setup_struct_phy_for_init(dev, &dev->phy);
3615
3616 /* IRQ related flags */
3617 dev->irq_reason = 0;
3618 memset(dev->dma_reason, 0, sizeof(dev->dma_reason));
3619 dev->irq_savedstate = B43_IRQ_MASKTEMPLATE;
3620
3621 dev->mac_suspended = 1;
3622
3623 /* Noise calculation context */
3624 memset(&dev->noisecalc, 0, sizeof(dev->noisecalc));
3625}
3626
3627static void b43_bluetooth_coext_enable(struct b43_wldev *dev)
3628{
3629 struct ssb_sprom *sprom = &dev->dev->bus->sprom;
3630 u32 hf;
3631
95de2841 3632 if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST))
e4d6b795
MB		 3633 return;
3634 if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode)
3635 return;
3636
3637 hf = b43_hf_read(dev);
95de2841 3638 if (sprom->boardflags_lo & B43_BFL_BTCMOD)
e4d6b795
MB		 3639 hf |= B43_HF_BTCOEXALT;
3640 else
3641 hf |= B43_HF_BTCOEX;
3642 b43_hf_write(dev, hf);
3643 //TODO
3644}
3645
3646static void b43_bluetooth_coext_disable(struct b43_wldev *dev)
3647{ //TODO
3648}
3649
3650static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev)
3651{
3652#ifdef CONFIG_SSB_DRIVER_PCICORE
3653 struct ssb_bus *bus = dev->dev->bus;
3654 u32 tmp;
3655
3656 if (bus->pcicore.dev &&
3657 bus->pcicore.dev->id.coreid == SSB_DEV_PCI &&
3658 bus->pcicore.dev->id.revision <= 5) {
3659 /* IMCFGLO timeouts workaround. */
3660 tmp = ssb_read32(dev->dev, SSB_IMCFGLO);
3661 tmp &= ~SSB_IMCFGLO_REQTO;
3662 tmp &= ~SSB_IMCFGLO_SERTO;
3663 switch (bus->bustype) {
3664 case SSB_BUSTYPE_PCI:
3665 case SSB_BUSTYPE_PCMCIA:
3666 tmp |= 0x32;
3667 break;
3668 case SSB_BUSTYPE_SSB:
3669 tmp |= 0x53;
3670 break;
3671 }
3672 ssb_write32(dev->dev, SSB_IMCFGLO, tmp);
3673 }
3674#endif /* CONFIG_SSB_DRIVER_PCICORE */
3675}
3676
74cfdba7
MB		 3677/* Write the short and long frame retry limit values. */
3678static void b43_set_retry_limits(struct b43_wldev *dev,
3679 unsigned int short_retry,
3680 unsigned int long_retry)
3681{
3682 /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
3683 * the chip-internal counter. */
3684 short_retry = min(short_retry, (unsigned int)0xF);
3685 long_retry = min(long_retry, (unsigned int)0xF);
3686
3687 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT,
3688 short_retry);
3689 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT,
3690 long_retry);
3691}
3692
d59f720d
MB		 3693static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle)
3694{
3695 u16 pu_delay;
3696
3697 /* The time value is in microseconds. */
3698 if (dev->phy.type == B43_PHYTYPE_A)
3699 pu_delay = 3700;
3700 else
3701 pu_delay = 1050;
3702 if ((dev->wl->if_type == IEEE80211_IF_TYPE_IBSS) || idle)
3703 pu_delay = 500;
3704 if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8))
3705 pu_delay = max(pu_delay, (u16)2400);
3706
3707 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay);
3708}
3709
3710/* Set the TSF CFP pre-TargetBeaconTransmissionTime. */
3711static void b43_set_pretbtt(struct b43_wldev *dev)
3712{
3713 u16 pretbtt;
3714
3715 /* The time value is in microseconds. */
3716 if (dev->wl->if_type == IEEE80211_IF_TYPE_IBSS) {
3717 pretbtt = 2;
3718 } else {
3719 if (dev->phy.type == B43_PHYTYPE_A)
3720 pretbtt = 120;
3721 else
3722 pretbtt = 250;
3723 }
3724 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt);
3725 b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt);
3726}
3727
e4d6b795
MB		 3728/* Shutdown a wireless core */
3729/* Locking: wl->mutex */
3730static void b43_wireless_core_exit(struct b43_wldev *dev)
3731{
3732 struct b43_phy *phy = &dev->phy;
1f7d87b0 3733 u32 macctl;
e4d6b795
MB		 3734
3735 B43_WARN_ON(b43_status(dev) > B43_STAT_INITIALIZED);
3736 if (b43_status(dev) != B43_STAT_INITIALIZED)
3737 return;
3738 b43_set_status(dev, B43_STAT_UNINIT);
3739
1f7d87b0
MB		 3740 /* Stop the microcode PSM. */
3741 macctl = b43_read32(dev, B43_MMIO_MACCTL);
3742 macctl &= ~B43_MACCTL_PSM_RUN;
3743 macctl |= B43_MACCTL_PSM_JMP0;
3744 b43_write32(dev, B43_MMIO_MACCTL, macctl);
3745
3506e0c4
RW		 3746 if (!dev->suspend_in_progress) {
3747 b43_leds_exit(dev);
3748 b43_rng_exit(dev->wl, false);
3749 }
e4d6b795 3750 b43_dma_free(dev);
5100d5ac 3751 b43_pio_free(dev);
e4d6b795 3752 b43_chip_exit(dev);
8e9f7529 3753 b43_radio_turn_off(dev, 1);
e4d6b795
MB		 3754 b43_switch_analog(dev, 0);
3755 if (phy->dyn_tssi_tbl)
3756 kfree(phy->tssi2dbm);
3757 kfree(phy->lo_control);
3758 phy->lo_control = NULL;
e66fee6a
MB		 3759 if (dev->wl->current_beacon) {
3760 dev_kfree_skb_any(dev->wl->current_beacon);
3761 dev->wl->current_beacon = NULL;
3762 }
3763
e4d6b795
MB		 3764 ssb_device_disable(dev->dev, 0);
3765 ssb_bus_may_powerdown(dev->dev->bus);
3766}
3767
3768/* Initialize a wireless core */
3769static int b43_wireless_core_init(struct b43_wldev *dev)
3770{
3771 struct b43_wl *wl = dev->wl;
3772 struct ssb_bus *bus = dev->dev->bus;
3773 struct ssb_sprom *sprom = &bus->sprom;
3774 struct b43_phy *phy = &dev->phy;
3775 int err;
3776 u32 hf, tmp;
3777
3778 B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
3779
3780 err = ssb_bus_powerup(bus, 0);
3781 if (err)
3782 goto out;
3783 if (!ssb_device_is_enabled(dev->dev)) {
3784 tmp = phy->gmode ? B43_TMSLOW_GMODE : 0;
3785 b43_wireless_core_reset(dev, tmp);
3786 }
3787
3788 if ((phy->type == B43_PHYTYPE_B) || (phy->type == B43_PHYTYPE_G)) {
3789 phy->lo_control =
3790 kzalloc(sizeof(*(phy->lo_control)), GFP_KERNEL);
3791 if (!phy->lo_control) {
3792 err = -ENOMEM;
3793 goto err_busdown;
3794 }
3795 }
3796 setup_struct_wldev_for_init(dev);
3797
3798 err = b43_phy_init_tssi2dbm_table(dev);
3799 if (err)
3800 goto err_kfree_lo_control;
3801
3802 /* Enable IRQ routing to this device. */
3803 ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev);
3804
3805 b43_imcfglo_timeouts_workaround(dev);
3806 b43_bluetooth_coext_disable(dev);
3807 b43_phy_early_init(dev);
3808 err = b43_chip_init(dev);
3809 if (err)
3810 goto err_kfree_tssitbl;
3811 b43_shm_write16(dev, B43_SHM_SHARED,
3812 B43_SHM_SH_WLCOREREV, dev->dev->id.revision);
3813 hf = b43_hf_read(dev);
3814 if (phy->type == B43_PHYTYPE_G) {
3815 hf |= B43_HF_SYMW;
3816 if (phy->rev == 1)
3817 hf |= B43_HF_GDCW;
95de2841 3818 if (sprom->boardflags_lo & B43_BFL_PACTRL)
e4d6b795
MB		 3819 hf |= B43_HF_OFDMPABOOST;
3820 } else if (phy->type == B43_PHYTYPE_B) {
3821 hf |= B43_HF_SYMW;
3822 if (phy->rev >= 2 && phy->radio_ver == 0x2050)
3823 hf &= ~B43_HF_GDCW;
3824 }
3825 b43_hf_write(dev, hf);
3826
74cfdba7
MB		 3827 b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT,
3828 B43_DEFAULT_LONG_RETRY_LIMIT);
e4d6b795
MB		 3829 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3);
3830 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2);
3831
3832 /* Disable sending probe responses from firmware.
3833 * Setting the MaxTime to one usec will always trigger
3834 * a timeout, so we never send any probe resp.
3835 * A timeout of zero is infinite. */
3836 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1);
3837
3838 b43_rate_memory_init(dev);
3839
3840 /* Minimum Contention Window */
3841 if (phy->type == B43_PHYTYPE_B) {
3842 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F);
3843 } else {
3844 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF);
3845 }
3846 /* Maximum Contention Window */
3847 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF);
3848
5100d5ac
MB		 3849 if ((dev->dev->bus->bustype == SSB_BUSTYPE_PCMCIA) || B43_FORCE_PIO) {
3850 dev->__using_pio_transfers = 1;
3851 err = b43_pio_init(dev);
3852 } else {
3853 dev->__using_pio_transfers = 0;
3854 err = b43_dma_init(dev);
3855 }
e4d6b795
MB		 3856 if (err)
3857 goto err_chip_exit;
03b29773 3858 b43_qos_init(dev);
d59f720d 3859 b43_set_synth_pu_delay(dev, 1);
e4d6b795
MB		 3860 b43_bluetooth_coext_enable(dev);
3861
3862 ssb_bus_powerup(bus, 1); /* Enable dynamic PCTL */
4150c572 3863 b43_upload_card_macaddress(dev);
e4d6b795 3864 b43_security_init(dev);
3506e0c4
RW		 3865 if (!dev->suspend_in_progress)
3866 b43_rng_init(wl);
e4d6b795
MB		 3867
3868 b43_set_status(dev, B43_STAT_INITIALIZED);
3869
3506e0c4
RW		 3870 if (!dev->suspend_in_progress)
3871 b43_leds_init(dev);
1a8d1227 3872out:
e4d6b795
MB		 3873 return err;
3874
3875 err_chip_exit:
3876 b43_chip_exit(dev);
3877 err_kfree_tssitbl:
3878 if (phy->dyn_tssi_tbl)
3879 kfree(phy->tssi2dbm);
3880 err_kfree_lo_control:
3881 kfree(phy->lo_control);
3882 phy->lo_control = NULL;
3883 err_busdown:
3884 ssb_bus_may_powerdown(bus);
3885 B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
3886 return err;
3887}
3888
40faacc4
MB		 3889static int b43_op_add_interface(struct ieee80211_hw *hw,
3890 struct ieee80211_if_init_conf *conf)
e4d6b795
MB		 3891{
3892 struct b43_wl *wl = hw_to_b43_wl(hw);
3893 struct b43_wldev *dev;
3894 unsigned long flags;
3895 int err = -EOPNOTSUPP;
4150c572
JB		 3896
3897 /* TODO: allow WDS/AP devices to coexist */
3898
3899 if (conf->type != IEEE80211_IF_TYPE_AP &&
3900 conf->type != IEEE80211_IF_TYPE_STA &&
3901 conf->type != IEEE80211_IF_TYPE_WDS &&
3902 conf->type != IEEE80211_IF_TYPE_IBSS)
3903 return -EOPNOTSUPP;
e4d6b795
MB		 3904
3905 mutex_lock(&wl->mutex);
4150c572 3906 if (wl->operating)
e4d6b795
MB		 3907 goto out_mutex_unlock;
3908
3909 b43dbg(wl, "Adding Interface type %d\n", conf->type);
3910
3911 dev = wl->current_dev;
4150c572 3912 wl->operating = 1;
32bfd35d 3913 wl->vif = conf->vif;
4150c572
JB		 3914 wl->if_type = conf->type;
3915 memcpy(wl->mac_addr, conf->mac_addr, ETH_ALEN);
3916
3917 spin_lock_irqsave(&wl->irq_lock, flags);
3918 b43_adjust_opmode(dev);
d59f720d
MB		 3919 b43_set_pretbtt(dev);
3920 b43_set_synth_pu_delay(dev, 0);
4150c572
JB		 3921 b43_upload_card_macaddress(dev);
3922 spin_unlock_irqrestore(&wl->irq_lock, flags);
3923
3924 err = 0;
3925 out_mutex_unlock:
3926 mutex_unlock(&wl->mutex);
3927
3928 return err;
3929}
3930
40faacc4
MB		 3931static void b43_op_remove_interface(struct ieee80211_hw *hw,
3932 struct ieee80211_if_init_conf *conf)
4150c572
JB		 3933{
3934 struct b43_wl *wl = hw_to_b43_wl(hw);
3935 struct b43_wldev *dev = wl->current_dev;
3936 unsigned long flags;
3937
3938 b43dbg(wl, "Removing Interface type %d\n", conf->type);
3939
3940 mutex_lock(&wl->mutex);
3941
3942 B43_WARN_ON(!wl->operating);
32bfd35d
JB		 3943 B43_WARN_ON(wl->vif != conf->vif);
3944 wl->vif = NULL;
4150c572
JB		 3945
3946 wl->operating = 0;
3947
3948 spin_lock_irqsave(&wl->irq_lock, flags);
3949 b43_adjust_opmode(dev);
3950 memset(wl->mac_addr, 0, ETH_ALEN);
3951 b43_upload_card_macaddress(dev);
3952 spin_unlock_irqrestore(&wl->irq_lock, flags);
3953
3954 mutex_unlock(&wl->mutex);
3955}
3956
40faacc4 3957static int b43_op_start(struct ieee80211_hw *hw)
4150c572
JB		 3958{
3959 struct b43_wl *wl = hw_to_b43_wl(hw);
3960 struct b43_wldev *dev = wl->current_dev;
3961 int did_init = 0;
923403b8 3962 int err = 0;
1946a2c3 3963 bool do_rfkill_exit = 0;
4150c572 3964
7be1bb6b
MB		 3965 /* Kill all old instance specific information to make sure
3966 * the card won't use it in the short timeframe between start
3967 * and mac80211 reconfiguring it. */
3968 memset(wl->bssid, 0, ETH_ALEN);
3969 memset(wl->mac_addr, 0, ETH_ALEN);
3970 wl->filter_flags = 0;
3971 wl->radiotap_enabled = 0;
e6f5b934 3972 b43_qos_clear(wl);
7be1bb6b 3973
1a8d1227
LF		 3974 /* First register RFkill.
3975 * LEDs that are registered later depend on it. */
3976 b43_rfkill_init(dev);
3977
4150c572
JB		 3978 mutex_lock(&wl->mutex);
3979
e4d6b795
MB		 3980 if (b43_status(dev) < B43_STAT_INITIALIZED) {
3981 err = b43_wireless_core_init(dev);
1946a2c3
MB		 3982 if (err) {
3983 do_rfkill_exit = 1;
e4d6b795 3984 goto out_mutex_unlock;
1946a2c3 3985 }
e4d6b795
MB		 3986 did_init = 1;
3987 }
4150c572 3988
e4d6b795
MB		 3989 if (b43_status(dev) < B43_STAT_STARTED) {
3990 err = b43_wireless_core_start(dev);
3991 if (err) {
3992 if (did_init)
3993 b43_wireless_core_exit(dev);
1946a2c3 3994 do_rfkill_exit = 1;
e4d6b795
MB		 3995 goto out_mutex_unlock;
3996 }
3997 }
3998
4150c572 3999 out_mutex_unlock:
e4d6b795
MB		 4000 mutex_unlock(&wl->mutex);
4001
1946a2c3
MB		 4002 if (do_rfkill_exit)
4003 b43_rfkill_exit(dev);
4004
e4d6b795
MB		 4005 return err;
4006}
4007
40faacc4 4008static void b43_op_stop(struct ieee80211_hw *hw)
e4d6b795
MB		 4009{
4010 struct b43_wl *wl = hw_to_b43_wl(hw);
4150c572 4011 struct b43_wldev *dev = wl->current_dev;
e4d6b795 4012
1a8d1227 4013 b43_rfkill_exit(dev);
e6f5b934 4014 cancel_work_sync(&(wl->qos_update_work));
1a8d1227 4015
e4d6b795 4016 mutex_lock(&wl->mutex);
4150c572
JB		 4017 if (b43_status(dev) >= B43_STAT_STARTED)
4018 b43_wireless_core_stop(dev);
4019 b43_wireless_core_exit(dev);
e4d6b795
MB		 4020 mutex_unlock(&wl->mutex);
4021}
4022
74cfdba7
MB		 4023static int b43_op_set_retry_limit(struct ieee80211_hw *hw,
4024 u32 short_retry_limit, u32 long_retry_limit)
4025{
4026 struct b43_wl *wl = hw_to_b43_wl(hw);
4027 struct b43_wldev *dev;
4028 int err = 0;
4029
4030 mutex_lock(&wl->mutex);
4031 dev = wl->current_dev;
4032 if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) {
4033 err = -ENODEV;
4034 goto out_unlock;
4035 }
4036 b43_set_retry_limits(dev, short_retry_limit, long_retry_limit);
4037out_unlock:
4038 mutex_unlock(&wl->mutex);
4039
4040 return err;
4041}
4042
e66fee6a
MB		 4043static int b43_op_beacon_set_tim(struct ieee80211_hw *hw, int aid, int set)
4044{
4045 struct b43_wl *wl = hw_to_b43_wl(hw);
4046 struct sk_buff *beacon;
d4df6f1a 4047 unsigned long flags;
e66fee6a
MB		 4048
4049 /* We could modify the existing beacon and set the aid bit in
4050 * the TIM field, but that would probably require resizing and
4051 * moving of data within the beacon template.
4052 * Simply request a new beacon and let mac80211 do the hard work. */
4053 beacon = ieee80211_beacon_get(hw, wl->vif, NULL);
4054 if (unlikely(!beacon))
4055 return -ENOMEM;
d4df6f1a 4056 spin_lock_irqsave(&wl->irq_lock, flags);
e66fee6a 4057 b43_update_templates(wl, beacon);
d4df6f1a 4058 spin_unlock_irqrestore(&wl->irq_lock, flags);
e66fee6a
MB		 4059
4060 return 0;
4061}
4062
4063static int b43_op_ibss_beacon_update(struct ieee80211_hw *hw,
4064 struct sk_buff *beacon,
4065 struct ieee80211_tx_control *ctl)
4066{
4067 struct b43_wl *wl = hw_to_b43_wl(hw);
d4df6f1a 4068 unsigned long flags;
e66fee6a 4069
d4df6f1a 4070 spin_lock_irqsave(&wl->irq_lock, flags);
e66fee6a 4071 b43_update_templates(wl, beacon);
d4df6f1a 4072 spin_unlock_irqrestore(&wl->irq_lock, flags);
e66fee6a
MB		 4073
4074 return 0;
4075}
4076
38968d09
JB		 4077static void b43_op_sta_notify(struct ieee80211_hw *hw,
4078 struct ieee80211_vif *vif,
4079 enum sta_notify_cmd notify_cmd,
4080 const u8 *addr)
4081{
4082 struct b43_wl *wl = hw_to_b43_wl(hw);
4083
4084 B43_WARN_ON(!vif || wl->vif != vif);
4085}
4086
e4d6b795 4087static const struct ieee80211_ops b43_hw_ops = {
40faacc4
MB		 4088 .tx = b43_op_tx,
4089 .conf_tx = b43_op_conf_tx,
4090 .add_interface = b43_op_add_interface,
4091 .remove_interface = b43_op_remove_interface,
4092 .config = b43_op_config,
4093 .config_interface = b43_op_config_interface,
4094 .configure_filter = b43_op_configure_filter,
4095 .set_key = b43_op_set_key,
4096 .get_stats = b43_op_get_stats,
4097 .get_tx_stats = b43_op_get_tx_stats,
4098 .start = b43_op_start,
4099 .stop = b43_op_stop,
74cfdba7 4100 .set_retry_limit = b43_op_set_retry_limit,
e66fee6a
MB		 4101 .set_tim = b43_op_beacon_set_tim,
4102 .beacon_update = b43_op_ibss_beacon_update,
38968d09 4103 .sta_notify = b43_op_sta_notify,
e4d6b795
MB		 4104};
4105
4106/* Hard-reset the chip. Do not call this directly.
4107 * Use b43_controller_restart()
4108 */
4109static void b43_chip_reset(struct work_struct *work)
4110{
4111 struct b43_wldev *dev =
4112 container_of(work, struct b43_wldev, restart_work);
4113 struct b43_wl *wl = dev->wl;
4114 int err = 0;
4115 int prev_status;
4116
4117 mutex_lock(&wl->mutex);
4118
4119 prev_status = b43_status(dev);
4120 /* Bring the device down... */
4121 if (prev_status >= B43_STAT_STARTED)
4122 b43_wireless_core_stop(dev);
4123 if (prev_status >= B43_STAT_INITIALIZED)
4124 b43_wireless_core_exit(dev);
4125
4126 /* ...and up again. */
4127 if (prev_status >= B43_STAT_INITIALIZED) {
4128 err = b43_wireless_core_init(dev);
4129 if (err)
4130 goto out;
4131 }
4132 if (prev_status >= B43_STAT_STARTED) {
4133 err = b43_wireless_core_start(dev);
4134 if (err) {
4135 b43_wireless_core_exit(dev);
4136 goto out;
4137 }
4138 }
4139 out:
4140 mutex_unlock(&wl->mutex);
4141 if (err)
4142 b43err(wl, "Controller restart FAILED\n");
4143 else
4144 b43info(wl, "Controller restarted\n");
4145}
4146
bb1eeff1 4147static int b43_setup_bands(struct b43_wldev *dev,
96c755a3 4148 bool have_2ghz_phy, bool have_5ghz_phy)
e4d6b795
MB		 4149{
4150 struct ieee80211_hw *hw = dev->wl->hw;
e4d6b795 4151
bb1eeff1
MB		 4152 if (have_2ghz_phy)
4153 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz;
4154 if (dev->phy.type == B43_PHYTYPE_N) {
4155 if (have_5ghz_phy)
4156 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_nphy;
4157 } else {
4158 if (have_5ghz_phy)
4159 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy;
4160 }
96c755a3 4161
bb1eeff1
MB		 4162 dev->phy.supports_2ghz = have_2ghz_phy;
4163 dev->phy.supports_5ghz = have_5ghz_phy;
e4d6b795
MB		 4164
4165 return 0;
4166}
4167
4168static void b43_wireless_core_detach(struct b43_wldev *dev)
4169{
4170 /* We release firmware that late to not be required to re-request
4171 * is all the time when we reinit the core. */
4172 b43_release_firmware(dev);
4173}
4174
4175static int b43_wireless_core_attach(struct b43_wldev *dev)
4176{
4177 struct b43_wl *wl = dev->wl;
4178 struct ssb_bus *bus = dev->dev->bus;
4179 struct pci_dev *pdev = bus->host_pci;
4180 int err;
96c755a3 4181 bool have_2ghz_phy = 0, have_5ghz_phy = 0;
e4d6b795
MB		 4182 u32 tmp;
4183
4184 /* Do NOT do any device initialization here.
4185 * Do it in wireless_core_init() instead.
4186 * This function is for gathering basic information about the HW, only.
4187 * Also some structs may be set up here. But most likely you want to have
4188 * that in core_init(), too.
4189 */
4190
4191 err = ssb_bus_powerup(bus, 0);
4192 if (err) {
4193 b43err(wl, "Bus powerup failed\n");
4194 goto out;
4195 }
4196 /* Get the PHY type. */
4197 if (dev->dev->id.revision >= 5) {
4198 u32 tmshigh;
4199
4200 tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);
96c755a3
MB		 4201 have_2ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY);
4202 have_5ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_5GHZ_PHY);
e4d6b795 4203 } else
96c755a3 4204 B43_WARN_ON(1);
e4d6b795 4205
96c755a3 4206 dev->phy.gmode = have_2ghz_phy;
e4d6b795
MB		 4207 tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
4208 b43_wireless_core_reset(dev, tmp);
4209
4210 err = b43_phy_versioning(dev);
4211 if (err)
21954c36 4212 goto err_powerdown;
e4d6b795
MB		 4213 /* Check if this device supports multiband. */
4214 if (!pdev ||
4215 (pdev->device != 0x4312 &&
4216 pdev->device != 0x4319 && pdev->device != 0x4324)) {
4217 /* No multiband support. */
96c755a3
MB		 4218 have_2ghz_phy = 0;
4219 have_5ghz_phy = 0;
e4d6b795
MB		 4220 switch (dev->phy.type) {
4221 case B43_PHYTYPE_A:
96c755a3 4222 have_5ghz_phy = 1;
e4d6b795
MB		 4223 break;
4224 case B43_PHYTYPE_G:
96c755a3
MB		 4225 case B43_PHYTYPE_N:
4226 have_2ghz_phy = 1;
e4d6b795
MB		 4227 break;
4228 default:
4229 B43_WARN_ON(1);
4230 }
4231 }
96c755a3
MB		 4232 if (dev->phy.type == B43_PHYTYPE_A) {
4233 /* FIXME */
4234 b43err(wl, "IEEE 802.11a devices are unsupported\n");
4235 err = -EOPNOTSUPP;
4236 goto err_powerdown;
4237 }
4238 dev->phy.gmode = have_2ghz_phy;
e4d6b795
MB		 4239 tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
4240 b43_wireless_core_reset(dev, tmp);
4241
4242 err = b43_validate_chipaccess(dev);
4243 if (err)
21954c36 4244 goto err_powerdown;
bb1eeff1 4245 err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy);
e4d6b795 4246 if (err)
21954c36 4247 goto err_powerdown;
e4d6b795
MB		 4248
4249 /* Now set some default "current_dev" */
4250 if (!wl->current_dev)
4251 wl->current_dev = dev;
4252 INIT_WORK(&dev->restart_work, b43_chip_reset);
4253
8e9f7529 4254 b43_radio_turn_off(dev, 1);
e4d6b795
MB		 4255 b43_switch_analog(dev, 0);
4256 ssb_device_disable(dev->dev, 0);
4257 ssb_bus_may_powerdown(bus);
4258
4259out:
4260 return err;
4261
e4d6b795
MB		 4262err_powerdown:
4263 ssb_bus_may_powerdown(bus);
4264 return err;
4265}
4266
4267static void b43_one_core_detach(struct ssb_device *dev)
4268{
4269 struct b43_wldev *wldev;
4270 struct b43_wl *wl;
4271
4272 wldev = ssb_get_drvdata(dev);
4273 wl = wldev->wl;
4274 cancel_work_sync(&wldev->restart_work);
4275 b43_debugfs_remove_device(wldev);
4276 b43_wireless_core_detach(wldev);
4277 list_del(&wldev->list);
4278 wl->nr_devs--;
4279 ssb_set_drvdata(dev, NULL);
4280 kfree(wldev);
4281}
4282
4283static int b43_one_core_attach(struct ssb_device *dev, struct b43_wl *wl)
4284{
4285 struct b43_wldev *wldev;
4286 struct pci_dev *pdev;
4287 int err = -ENOMEM;
4288
4289 if (!list_empty(&wl->devlist)) {
4290 /* We are not the first core on this chip. */
4291 pdev = dev->bus->host_pci;
4292 /* Only special chips support more than one wireless
4293 * core, although some of the other chips have more than
4294 * one wireless core as well. Check for this and
4295 * bail out early.
4296 */
4297 if (!pdev ||
4298 ((pdev->device != 0x4321) &&
4299 (pdev->device != 0x4313) && (pdev->device != 0x431A))) {
4300 b43dbg(wl, "Ignoring unconnected 802.11 core\n");
4301 return -ENODEV;
4302 }
4303 }
4304
4305 wldev = kzalloc(sizeof(*wldev), GFP_KERNEL);
4306 if (!wldev)
4307 goto out;
4308
4309 wldev->dev = dev;
4310 wldev->wl = wl;
4311 b43_set_status(wldev, B43_STAT_UNINIT);
4312 wldev->bad_frames_preempt = modparam_bad_frames_preempt;
4313 tasklet_init(&wldev->isr_tasklet,
4314 (void (*)(unsigned long))b43_interrupt_tasklet,
4315 (unsigned long)wldev);
e4d6b795
MB		 4316 INIT_LIST_HEAD(&wldev->list);
4317
4318 err = b43_wireless_core_attach(wldev);
4319 if (err)
4320 goto err_kfree_wldev;
4321
4322 list_add(&wldev->list, &wl->devlist);
4323 wl->nr_devs++;
4324 ssb_set_drvdata(dev, wldev);
4325 b43_debugfs_add_device(wldev);
4326
4327 out:
4328 return err;
4329
4330 err_kfree_wldev:
4331 kfree(wldev);
4332 return err;
4333}
4334
4335static void b43_sprom_fixup(struct ssb_bus *bus)
4336{
4337 /* boardflags workarounds */
4338 if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL &&
4339 bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74)
95de2841 4340 bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST;
e4d6b795
MB		 4341 if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE &&
4342 bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40)
95de2841 4343 bus->sprom.boardflags_lo |= B43_BFL_PACTRL;
e4d6b795
MB		 4344}
4345
4346static void b43_wireless_exit(struct ssb_device *dev, struct b43_wl *wl)
4347{
4348 struct ieee80211_hw *hw = wl->hw;
4349
4350 ssb_set_devtypedata(dev, NULL);
4351 ieee80211_free_hw(hw);
4352}
4353
4354static int b43_wireless_init(struct ssb_device *dev)
4355{
4356 struct ssb_sprom *sprom = &dev->bus->sprom;
4357 struct ieee80211_hw *hw;
4358 struct b43_wl *wl;
4359 int err = -ENOMEM;
4360
4361 b43_sprom_fixup(dev->bus);
4362
4363 hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops);
4364 if (!hw) {
4365 b43err(NULL, "Could not allocate ieee80211 device\n");
4366 goto out;
4367 }
4368
4369 /* fill hw info */
d8be11ee
JB		 4370 hw->flags = IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE |
4371 IEEE80211_HW_RX_INCLUDES_FCS;
e4d6b795
MB		 4372 hw->max_signal = 100;
4373 hw->max_rssi = -110;
4374 hw->max_noise = -110;
e6f5b934 4375 hw->queues = b43_modparam_qos ? 4 : 1;
e4d6b795 4376 SET_IEEE80211_DEV(hw, dev->dev);
95de2841
LF		 4377 if (is_valid_ether_addr(sprom->et1mac))
4378 SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
e4d6b795 4379 else
95de2841 4380 SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac);
e4d6b795
MB		 4381
4382 /* Get and initialize struct b43_wl */
4383 wl = hw_to_b43_wl(hw);
4384 memset(wl, 0, sizeof(*wl));
4385 wl->hw = hw;
4386 spin_lock_init(&wl->irq_lock);
4387 spin_lock_init(&wl->leds_lock);
280d0e16 4388 spin_lock_init(&wl->shm_lock);
e4d6b795
MB		 4389 mutex_init(&wl->mutex);
4390 INIT_LIST_HEAD(&wl->devlist);
e6f5b934 4391 INIT_WORK(&wl->qos_update_work, b43_qos_update_work);
e4d6b795
MB		 4392
4393 ssb_set_devtypedata(dev, wl);
4394 b43info(wl, "Broadcom %04X WLAN found\n", dev->bus->chip_id);
4395 err = 0;
4396 out:
4397 return err;
4398}
4399
4400static int b43_probe(struct ssb_device *dev, const struct ssb_device_id *id)
4401{
4402 struct b43_wl *wl;
4403 int err;
4404 int first = 0;
4405
4406 wl = ssb_get_devtypedata(dev);
4407 if (!wl) {
4408 /* Probing the first core. Must setup common struct b43_wl */
4409 first = 1;
4410 err = b43_wireless_init(dev);
4411 if (err)
4412 goto out;
4413 wl = ssb_get_devtypedata(dev);
4414 B43_WARN_ON(!wl);
4415 }
4416 err = b43_one_core_attach(dev, wl);
4417 if (err)
4418 goto err_wireless_exit;
4419
4420 if (first) {
4421 err = ieee80211_register_hw(wl->hw);
4422 if (err)
4423 goto err_one_core_detach;
4424 }
4425
4426 out:
4427 return err;
4428
4429 err_one_core_detach:
4430 b43_one_core_detach(dev);
4431 err_wireless_exit:
4432 if (first)
4433 b43_wireless_exit(dev, wl);
4434 return err;
4435}
4436
4437static void b43_remove(struct ssb_device *dev)
4438{
4439 struct b43_wl *wl = ssb_get_devtypedata(dev);
4440 struct b43_wldev *wldev = ssb_get_drvdata(dev);
4441
4442 B43_WARN_ON(!wl);
4443 if (wl->current_dev == wldev)
4444 ieee80211_unregister_hw(wl->hw);
4445
4446 b43_one_core_detach(dev);
4447
4448 if (list_empty(&wl->devlist)) {
4449 /* Last core on the chip unregistered.
4450 * We can destroy common struct b43_wl.
4451 */
4452 b43_wireless_exit(dev, wl);
4453 }
4454}
4455
4456/* Perform a hardware reset. This can be called from any context. */
4457void b43_controller_restart(struct b43_wldev *dev, const char *reason)
4458{
4459 /* Must avoid requeueing, if we are in shutdown. */
4460 if (b43_status(dev) < B43_STAT_INITIALIZED)
4461 return;
4462 b43info(dev->wl, "Controller RESET (%s) ...\n", reason);
4463 queue_work(dev->wl->hw->workqueue, &dev->restart_work);
4464}
4465
4466#ifdef CONFIG_PM
4467
4468static int b43_suspend(struct ssb_device *dev, pm_message_t state)
4469{
4470 struct b43_wldev *wldev = ssb_get_drvdata(dev);
4471 struct b43_wl *wl = wldev->wl;
4472
4473 b43dbg(wl, "Suspending...\n");
4474
4475 mutex_lock(&wl->mutex);
3506e0c4 4476 wldev->suspend_in_progress = true;
e4d6b795
MB		 4477 wldev->suspend_init_status = b43_status(wldev);
4478 if (wldev->suspend_init_status >= B43_STAT_STARTED)
4479 b43_wireless_core_stop(wldev);
4480 if (wldev->suspend_init_status >= B43_STAT_INITIALIZED)
4481 b43_wireless_core_exit(wldev);
4482 mutex_unlock(&wl->mutex);
4483
4484 b43dbg(wl, "Device suspended.\n");
4485
4486 return 0;
4487}
4488
4489static int b43_resume(struct ssb_device *dev)
4490{
4491 struct b43_wldev *wldev = ssb_get_drvdata(dev);
4492 struct b43_wl *wl = wldev->wl;
4493 int err = 0;
4494
4495 b43dbg(wl, "Resuming...\n");
4496
4497 mutex_lock(&wl->mutex);
4498 if (wldev->suspend_init_status >= B43_STAT_INITIALIZED) {
4499 err = b43_wireless_core_init(wldev);
4500 if (err) {
4501 b43err(wl, "Resume failed at core init\n");
4502 goto out;
4503 }
4504 }
4505 if (wldev->suspend_init_status >= B43_STAT_STARTED) {
4506 err = b43_wireless_core_start(wldev);
4507 if (err) {
3506e0c4
RW		 4508 b43_leds_exit(wldev);
4509 b43_rng_exit(wldev->wl, true);
e4d6b795
MB		 4510 b43_wireless_core_exit(wldev);
4511 b43err(wl, "Resume failed at core start\n");
4512 goto out;
4513 }
4514 }
e4d6b795 4515 b43dbg(wl, "Device resumed.\n");
3506e0c4
RW		 4516 out:
4517 wldev->suspend_in_progress = false;
4518 mutex_unlock(&wl->mutex);
e4d6b795
MB		 4519 return err;
4520}
4521
4522#else /* CONFIG_PM */
4523# define b43_suspend NULL
4524# define b43_resume NULL
4525#endif /* CONFIG_PM */
4526
4527static struct ssb_driver b43_ssb_driver = {
4528 .name = KBUILD_MODNAME,
4529 .id_table = b43_ssb_tbl,
4530 .probe = b43_probe,
4531 .remove = b43_remove,
4532 .suspend = b43_suspend,
4533 .resume = b43_resume,
4534};
4535
26bc783f
MB		 4536static void b43_print_driverinfo(void)
4537{
4538 const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "",
4539 *feat_leds = "", *feat_rfkill = "";
4540
4541#ifdef CONFIG_B43_PCI_AUTOSELECT
4542 feat_pci = "P";
4543#endif
4544#ifdef CONFIG_B43_PCMCIA
4545 feat_pcmcia = "M";
4546#endif
4547#ifdef CONFIG_B43_NPHY
4548 feat_nphy = "N";
4549#endif
4550#ifdef CONFIG_B43_LEDS
4551 feat_leds = "L";
4552#endif
4553#ifdef CONFIG_B43_RFKILL
4554 feat_rfkill = "R";
4555#endif
4556 printk(KERN_INFO "Broadcom 43xx driver loaded "
4557 "[ Features: %s%s%s%s%s, Firmware-ID: "
4558 B43_SUPPORTED_FIRMWARE_ID " ]\n",
4559 feat_pci, feat_pcmcia, feat_nphy,
4560 feat_leds, feat_rfkill);
4561}
4562
e4d6b795
MB		 4563static int __init b43_init(void)
4564{
4565 int err;
4566
4567 b43_debugfs_init();
4568 err = b43_pcmcia_init();
4569 if (err)
4570 goto err_dfs_exit;
4571 err = ssb_driver_register(&b43_ssb_driver);
4572 if (err)
4573 goto err_pcmcia_exit;
26bc783f 4574 b43_print_driverinfo();
e4d6b795
MB		 4575
4576 return err;
4577
4578err_pcmcia_exit:
4579 b43_pcmcia_exit();
4580err_dfs_exit:
4581 b43_debugfs_exit();
4582 return err;
4583}
4584
4585static void __exit b43_exit(void)
4586{
4587 ssb_driver_unregister(&b43_ssb_driver);
4588 b43_pcmcia_exit();
4589 b43_debugfs_exit();
4590}
4591
4592module_init(b43_init)
4593module_exit(b43_exit)
ubuntu-zesty-kernel mirror