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b43: Implement dynamic PHY API
[deliverable/linux.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>
e4d6b795
MB		 36#include <linux/firmware.h>
37#include <linux/wireless.h>
38#include <linux/workqueue.h>
39#include <linux/skbuff.h>
96cf49a2 40#include <linux/io.h>
e4d6b795
MB		 41#include <linux/dma-mapping.h>
42#include <asm/unaligned.h>
43
44#include "b43.h"
45#include "main.h"
46#include "debugfs.h"
ef1a628d
MB		 47#include "phy_common.h"
48#include "phy_g.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
1855ba78
MB		 87static int modparam_btcoex = 1;
88module_param_named(btcoex, modparam_btcoex, int, 0444);
89MODULE_PARM_DESC(btcoex, "Enable Bluetooth coexistance (default on)");
90
e6f5b934 91
e4d6b795
MB		 92static const struct ssb_device_id b43_ssb_tbl[] = {
93 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5),
94 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6),
95 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7),
96 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9),
97 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10),
d5c71e46 98 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11),
013978b6 99 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13),
e4d6b795
MB		 100 SSB_DEVTABLE_END
101};
102
103MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl);
104
105/* Channel and ratetables are shared for all devices.
106 * They can't be const, because ieee80211 puts some precalculated
107 * data in there. This data is the same for all devices, so we don't
108 * get concurrency issues */
109#define RATETAB_ENT(_rateid, _flags) \
8318d78a
JB		 110 { \
111 .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \
112 .hw_value = (_rateid), \
113 .flags = (_flags), \
e4d6b795 114 }
8318d78a
JB		 115
116/*
117 * NOTE: When changing this, sync with xmit.c's
118 * b43_plcp_get_bitrate_idx_* functions!
119 */
e4d6b795 120static struct ieee80211_rate __b43_ratetable[] = {
8318d78a
JB		 121 RATETAB_ENT(B43_CCK_RATE_1MB, 0),
122 RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE),
123 RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE),
124 RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE),
125 RATETAB_ENT(B43_OFDM_RATE_6MB, 0),
126 RATETAB_ENT(B43_OFDM_RATE_9MB, 0),
127 RATETAB_ENT(B43_OFDM_RATE_12MB, 0),
128 RATETAB_ENT(B43_OFDM_RATE_18MB, 0),
129 RATETAB_ENT(B43_OFDM_RATE_24MB, 0),
130 RATETAB_ENT(B43_OFDM_RATE_36MB, 0),
131 RATETAB_ENT(B43_OFDM_RATE_48MB, 0),
132 RATETAB_ENT(B43_OFDM_RATE_54MB, 0),
e4d6b795
MB		 133};
134
135#define b43_a_ratetable (__b43_ratetable + 4)
136#define b43_a_ratetable_size 8
137#define b43_b_ratetable (__b43_ratetable + 0)
138#define b43_b_ratetable_size 4
139#define b43_g_ratetable (__b43_ratetable + 0)
140#define b43_g_ratetable_size 12
141
bb1eeff1
MB		 142#define CHAN4G(_channel, _freq, _flags) { \
143 .band = IEEE80211_BAND_2GHZ, \
144 .center_freq = (_freq), \
145 .hw_value = (_channel), \
146 .flags = (_flags), \
147 .max_antenna_gain = 0, \
148 .max_power = 30, \
149}
96c755a3 150static struct ieee80211_channel b43_2ghz_chantable[] = {
bb1eeff1
MB		 151 CHAN4G(1, 2412, 0),
152 CHAN4G(2, 2417, 0),
153 CHAN4G(3, 2422, 0),
154 CHAN4G(4, 2427, 0),
155 CHAN4G(5, 2432, 0),
156 CHAN4G(6, 2437, 0),
157 CHAN4G(7, 2442, 0),
158 CHAN4G(8, 2447, 0),
159 CHAN4G(9, 2452, 0),
160 CHAN4G(10, 2457, 0),
161 CHAN4G(11, 2462, 0),
162 CHAN4G(12, 2467, 0),
163 CHAN4G(13, 2472, 0),
164 CHAN4G(14, 2484, 0),
165};
166#undef CHAN4G
167
168#define CHAN5G(_channel, _flags) { \
169 .band = IEEE80211_BAND_5GHZ, \
170 .center_freq = 5000 + (5 * (_channel)), \
171 .hw_value = (_channel), \
172 .flags = (_flags), \
173 .max_antenna_gain = 0, \
174 .max_power = 30, \
175}
176static struct ieee80211_channel b43_5ghz_nphy_chantable[] = {
177 CHAN5G(32, 0), CHAN5G(34, 0),
178 CHAN5G(36, 0), CHAN5G(38, 0),
179 CHAN5G(40, 0), CHAN5G(42, 0),
180 CHAN5G(44, 0), CHAN5G(46, 0),
181 CHAN5G(48, 0), CHAN5G(50, 0),
182 CHAN5G(52, 0), CHAN5G(54, 0),
183 CHAN5G(56, 0), CHAN5G(58, 0),
184 CHAN5G(60, 0), CHAN5G(62, 0),
185 CHAN5G(64, 0), CHAN5G(66, 0),
186 CHAN5G(68, 0), CHAN5G(70, 0),
187 CHAN5G(72, 0), CHAN5G(74, 0),
188 CHAN5G(76, 0), CHAN5G(78, 0),
189 CHAN5G(80, 0), CHAN5G(82, 0),
190 CHAN5G(84, 0), CHAN5G(86, 0),
191 CHAN5G(88, 0), CHAN5G(90, 0),
192 CHAN5G(92, 0), CHAN5G(94, 0),
193 CHAN5G(96, 0), CHAN5G(98, 0),
194 CHAN5G(100, 0), CHAN5G(102, 0),
195 CHAN5G(104, 0), CHAN5G(106, 0),
196 CHAN5G(108, 0), CHAN5G(110, 0),
197 CHAN5G(112, 0), CHAN5G(114, 0),
198 CHAN5G(116, 0), CHAN5G(118, 0),
199 CHAN5G(120, 0), CHAN5G(122, 0),
200 CHAN5G(124, 0), CHAN5G(126, 0),
201 CHAN5G(128, 0), CHAN5G(130, 0),
202 CHAN5G(132, 0), CHAN5G(134, 0),
203 CHAN5G(136, 0), CHAN5G(138, 0),
204 CHAN5G(140, 0), CHAN5G(142, 0),
205 CHAN5G(144, 0), CHAN5G(145, 0),
206 CHAN5G(146, 0), CHAN5G(147, 0),
207 CHAN5G(148, 0), CHAN5G(149, 0),
208 CHAN5G(150, 0), CHAN5G(151, 0),
209 CHAN5G(152, 0), CHAN5G(153, 0),
210 CHAN5G(154, 0), CHAN5G(155, 0),
211 CHAN5G(156, 0), CHAN5G(157, 0),
212 CHAN5G(158, 0), CHAN5G(159, 0),
213 CHAN5G(160, 0), CHAN5G(161, 0),
214 CHAN5G(162, 0), CHAN5G(163, 0),
215 CHAN5G(164, 0), CHAN5G(165, 0),
216 CHAN5G(166, 0), CHAN5G(168, 0),
217 CHAN5G(170, 0), CHAN5G(172, 0),
218 CHAN5G(174, 0), CHAN5G(176, 0),
219 CHAN5G(178, 0), CHAN5G(180, 0),
220 CHAN5G(182, 0), CHAN5G(184, 0),
221 CHAN5G(186, 0), CHAN5G(188, 0),
222 CHAN5G(190, 0), CHAN5G(192, 0),
223 CHAN5G(194, 0), CHAN5G(196, 0),
224 CHAN5G(198, 0), CHAN5G(200, 0),
225 CHAN5G(202, 0), CHAN5G(204, 0),
226 CHAN5G(206, 0), CHAN5G(208, 0),
227 CHAN5G(210, 0), CHAN5G(212, 0),
228 CHAN5G(214, 0), CHAN5G(216, 0),
229 CHAN5G(218, 0), CHAN5G(220, 0),
230 CHAN5G(222, 0), CHAN5G(224, 0),
231 CHAN5G(226, 0), CHAN5G(228, 0),
e4d6b795
MB		 232};
233
bb1eeff1
MB		 234static struct ieee80211_channel b43_5ghz_aphy_chantable[] = {
235 CHAN5G(34, 0), CHAN5G(36, 0),
236 CHAN5G(38, 0), CHAN5G(40, 0),
237 CHAN5G(42, 0), CHAN5G(44, 0),
238 CHAN5G(46, 0), CHAN5G(48, 0),
239 CHAN5G(52, 0), CHAN5G(56, 0),
240 CHAN5G(60, 0), CHAN5G(64, 0),
241 CHAN5G(100, 0), CHAN5G(104, 0),
242 CHAN5G(108, 0), CHAN5G(112, 0),
243 CHAN5G(116, 0), CHAN5G(120, 0),
244 CHAN5G(124, 0), CHAN5G(128, 0),
245 CHAN5G(132, 0), CHAN5G(136, 0),
246 CHAN5G(140, 0), CHAN5G(149, 0),
247 CHAN5G(153, 0), CHAN5G(157, 0),
248 CHAN5G(161, 0), CHAN5G(165, 0),
249 CHAN5G(184, 0), CHAN5G(188, 0),
250 CHAN5G(192, 0), CHAN5G(196, 0),
251 CHAN5G(200, 0), CHAN5G(204, 0),
252 CHAN5G(208, 0), CHAN5G(212, 0),
253 CHAN5G(216, 0),
254};
255#undef CHAN5G
256
257static struct ieee80211_supported_band b43_band_5GHz_nphy = {
258 .band = IEEE80211_BAND_5GHZ,
259 .channels = b43_5ghz_nphy_chantable,
260 .n_channels = ARRAY_SIZE(b43_5ghz_nphy_chantable),
261 .bitrates = b43_a_ratetable,
262 .n_bitrates = b43_a_ratetable_size,
e4d6b795 263};
8318d78a 264
bb1eeff1
MB		 265static struct ieee80211_supported_band b43_band_5GHz_aphy = {
266 .band = IEEE80211_BAND_5GHZ,
267 .channels = b43_5ghz_aphy_chantable,
268 .n_channels = ARRAY_SIZE(b43_5ghz_aphy_chantable),
269 .bitrates = b43_a_ratetable,
270 .n_bitrates = b43_a_ratetable_size,
8318d78a 271};
e4d6b795 272
8318d78a 273static struct ieee80211_supported_band b43_band_2GHz = {
bb1eeff1
MB		 274 .band = IEEE80211_BAND_2GHZ,
275 .channels = b43_2ghz_chantable,
276 .n_channels = ARRAY_SIZE(b43_2ghz_chantable),
277 .bitrates = b43_g_ratetable,
278 .n_bitrates = b43_g_ratetable_size,
8318d78a
JB		 279};
280
e4d6b795
MB		 281static void b43_wireless_core_exit(struct b43_wldev *dev);
282static int b43_wireless_core_init(struct b43_wldev *dev);
283static void b43_wireless_core_stop(struct b43_wldev *dev);
284static int b43_wireless_core_start(struct b43_wldev *dev);
285
286static int b43_ratelimit(struct b43_wl *wl)
287{
288 if (!wl || !wl->current_dev)
289 return 1;
290 if (b43_status(wl->current_dev) < B43_STAT_STARTED)
291 return 1;
292 /* We are up and running.
293 * Ratelimit the messages to avoid DoS over the net. */
294 return net_ratelimit();
295}
296
297void b43info(struct b43_wl *wl, const char *fmt, ...)
298{
299 va_list args;
300
301 if (!b43_ratelimit(wl))
302 return;
303 va_start(args, fmt);
304 printk(KERN_INFO "b43-%s: ",
305 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
306 vprintk(fmt, args);
307 va_end(args);
308}
309
310void b43err(struct b43_wl *wl, const char *fmt, ...)
311{
312 va_list args;
313
314 if (!b43_ratelimit(wl))
315 return;
316 va_start(args, fmt);
317 printk(KERN_ERR "b43-%s ERROR: ",
318 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
319 vprintk(fmt, args);
320 va_end(args);
321}
322
323void b43warn(struct b43_wl *wl, const char *fmt, ...)
324{
325 va_list args;
326
327 if (!b43_ratelimit(wl))
328 return;
329 va_start(args, fmt);
330 printk(KERN_WARNING "b43-%s warning: ",
331 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
332 vprintk(fmt, args);
333 va_end(args);
334}
335
336#if B43_DEBUG
337void b43dbg(struct b43_wl *wl, const char *fmt, ...)
338{
339 va_list args;
340
341 va_start(args, fmt);
342 printk(KERN_DEBUG "b43-%s debug: ",
343 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan");
344 vprintk(fmt, args);
345 va_end(args);
346}
347#endif /* DEBUG */
348
349static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val)
350{
351 u32 macctl;
352
353 B43_WARN_ON(offset % 4 != 0);
354
355 macctl = b43_read32(dev, B43_MMIO_MACCTL);
356 if (macctl & B43_MACCTL_BE)
357 val = swab32(val);
358
359 b43_write32(dev, B43_MMIO_RAM_CONTROL, offset);
360 mmiowb();
361 b43_write32(dev, B43_MMIO_RAM_DATA, val);
362}
363
280d0e16
MB		 364static inline void b43_shm_control_word(struct b43_wldev *dev,
365 u16 routing, u16 offset)
e4d6b795
MB		 366{
367 u32 control;
368
369 /* "offset" is the WORD offset. */
e4d6b795
MB		 370 control = routing;
371 control <<= 16;
372 control |= offset;
373 b43_write32(dev, B43_MMIO_SHM_CONTROL, control);
374}
375
6bbc321a 376u32 __b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset)
e4d6b795
MB		 377{
378 u32 ret;
379
380 if (routing == B43_SHM_SHARED) {
381 B43_WARN_ON(offset & 0x0001);
382 if (offset & 0x0003) {
383 /* Unaligned access */
384 b43_shm_control_word(dev, routing, offset >> 2);
385 ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
386 ret <<= 16;
387 b43_shm_control_word(dev, routing, (offset >> 2) + 1);
388 ret |= b43_read16(dev, B43_MMIO_SHM_DATA);
389
280d0e16 390 goto out;
e4d6b795
MB		 391 }
392 offset >>= 2;
393 }
394 b43_shm_control_word(dev, routing, offset);
395 ret = b43_read32(dev, B43_MMIO_SHM_DATA);
280d0e16 396out:
e4d6b795
MB		 397 return ret;
398}
399
6bbc321a 400u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset)
e4d6b795 401{
280d0e16
MB		 402 struct b43_wl *wl = dev->wl;
403 unsigned long flags;
6bbc321a 404 u32 ret;
e4d6b795 405
280d0e16 406 spin_lock_irqsave(&wl->shm_lock, flags);
6bbc321a
MB		 407 ret = __b43_shm_read32(dev, routing, offset);
408 spin_unlock_irqrestore(&wl->shm_lock, flags);
409
410 return ret;
411}
412
413u16 __b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset)
414{
415 u16 ret;
416
e4d6b795
MB		 417 if (routing == B43_SHM_SHARED) {
418 B43_WARN_ON(offset & 0x0001);
419 if (offset & 0x0003) {
420 /* Unaligned access */
421 b43_shm_control_word(dev, routing, offset >> 2);
422 ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
423
280d0e16 424 goto out;
e4d6b795
MB		 425 }
426 offset >>= 2;
427 }
428 b43_shm_control_word(dev, routing, offset);
429 ret = b43_read16(dev, B43_MMIO_SHM_DATA);
280d0e16 430out:
e4d6b795
MB		 431 return ret;
432}
433
6bbc321a 434u16 b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset)
e4d6b795 435{
280d0e16
MB		 436 struct b43_wl *wl = dev->wl;
437 unsigned long flags;
6bbc321a 438 u16 ret;
280d0e16
MB		 439
440 spin_lock_irqsave(&wl->shm_lock, flags);
6bbc321a
MB		 441 ret = __b43_shm_read16(dev, routing, offset);
442 spin_unlock_irqrestore(&wl->shm_lock, flags);
443
444 return ret;
445}
446
447void __b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value)
448{
e4d6b795
MB		 449 if (routing == B43_SHM_SHARED) {
450 B43_WARN_ON(offset & 0x0001);
451 if (offset & 0x0003) {
452 /* Unaligned access */
453 b43_shm_control_word(dev, routing, offset >> 2);
e4d6b795
MB		 454 b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED,
455 (value >> 16) & 0xffff);
e4d6b795 456 b43_shm_control_word(dev, routing, (offset >> 2) + 1);
e4d6b795 457 b43_write16(dev, B43_MMIO_SHM_DATA, value & 0xffff);
6bbc321a 458 return;
e4d6b795
MB		 459 }
460 offset >>= 2;
461 }
462 b43_shm_control_word(dev, routing, offset);
e4d6b795
MB		 463 b43_write32(dev, B43_MMIO_SHM_DATA, value);
464}
465
6bbc321a 466void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value)
e4d6b795 467{
280d0e16
MB		 468 struct b43_wl *wl = dev->wl;
469 unsigned long flags;
470
471 spin_lock_irqsave(&wl->shm_lock, flags);
6bbc321a
MB		 472 __b43_shm_write32(dev, routing, offset, value);
473 spin_unlock_irqrestore(&wl->shm_lock, flags);
474}
475
476void __b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value)
477{
e4d6b795
MB		 478 if (routing == B43_SHM_SHARED) {
479 B43_WARN_ON(offset & 0x0001);
480 if (offset & 0x0003) {
481 /* Unaligned access */
482 b43_shm_control_word(dev, routing, offset >> 2);
e4d6b795 483 b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value);
6bbc321a 484 return;
e4d6b795
MB		 485 }
486 offset >>= 2;
487 }
488 b43_shm_control_word(dev, routing, offset);
e4d6b795 489 b43_write16(dev, B43_MMIO_SHM_DATA, value);
6bbc321a
MB		 490}
491
492void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value)
493{
494 struct b43_wl *wl = dev->wl;
495 unsigned long flags;
496
497 spin_lock_irqsave(&wl->shm_lock, flags);
498 __b43_shm_write16(dev, routing, offset, value);
280d0e16 499 spin_unlock_irqrestore(&wl->shm_lock, flags);
e4d6b795
MB		 500}
501
502/* Read HostFlags */
35f0d354 503u64 b43_hf_read(struct b43_wldev * dev)
e4d6b795 504{
35f0d354 505 u64 ret;
e4d6b795
MB		 506
507 ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI);
508 ret <<= 16;
35f0d354
MB		 509 ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI);
510 ret <<= 16;
e4d6b795
MB		 511 ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO);
512
513 return ret;
514}
515
516/* Write HostFlags */
35f0d354 517void b43_hf_write(struct b43_wldev *dev, u64 value)
e4d6b795 518{
35f0d354
MB		 519 u16 lo, mi, hi;
520
521 lo = (value & 0x00000000FFFFULL);
522 mi = (value & 0x0000FFFF0000ULL) >> 16;
523 hi = (value & 0xFFFF00000000ULL) >> 32;
524 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO, lo);
525 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI, mi);
526 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi);
e4d6b795
MB		 527}
528
529void b43_tsf_read(struct b43_wldev *dev, u64 * tsf)
530{
531 /* We need to be careful. As we read the TSF from multiple
532 * registers, we should take care of register overflows.
533 * In theory, the whole tsf read process should be atomic.
534 * We try to be atomic here, by restaring the read process,
535 * if any of the high registers changed (overflew).
536 */
537 if (dev->dev->id.revision >= 3) {
538 u32 low, high, high2;
539
540 do {
541 high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH);
542 low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW);
543 high2 = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH);
544 } while (unlikely(high != high2));
545
546 *tsf = high;
547 *tsf <<= 32;
548 *tsf |= low;
549 } else {
550 u64 tmp;
551 u16 v0, v1, v2, v3;
552 u16 test1, test2, test3;
553
554 do {
555 v3 = b43_read16(dev, B43_MMIO_TSF_3);
556 v2 = b43_read16(dev, B43_MMIO_TSF_2);
557 v1 = b43_read16(dev, B43_MMIO_TSF_1);
558 v0 = b43_read16(dev, B43_MMIO_TSF_0);
559
560 test3 = b43_read16(dev, B43_MMIO_TSF_3);
561 test2 = b43_read16(dev, B43_MMIO_TSF_2);
562 test1 = b43_read16(dev, B43_MMIO_TSF_1);
563 } while (v3 != test3 || v2 != test2 || v1 != test1);
564
565 *tsf = v3;
566 *tsf <<= 48;
567 tmp = v2;
568 tmp <<= 32;
569 *tsf |= tmp;
570 tmp = v1;
571 tmp <<= 16;
572 *tsf |= tmp;
573 *tsf |= v0;
574 }
575}
576
577static void b43_time_lock(struct b43_wldev *dev)
578{
579 u32 macctl;
580
581 macctl = b43_read32(dev, B43_MMIO_MACCTL);
582 macctl |= B43_MACCTL_TBTTHOLD;
583 b43_write32(dev, B43_MMIO_MACCTL, macctl);
584 /* Commit the write */
585 b43_read32(dev, B43_MMIO_MACCTL);
586}
587
588static void b43_time_unlock(struct b43_wldev *dev)
589{
590 u32 macctl;
591
592 macctl = b43_read32(dev, B43_MMIO_MACCTL);
593 macctl &= ~B43_MACCTL_TBTTHOLD;
594 b43_write32(dev, B43_MMIO_MACCTL, macctl);
595 /* Commit the write */
596 b43_read32(dev, B43_MMIO_MACCTL);
597}
598
599static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf)
600{
601 /* Be careful with the in-progress timer.
602 * First zero out the low register, so we have a full
603 * register-overflow duration to complete the operation.
604 */
605 if (dev->dev->id.revision >= 3) {
606 u32 lo = (tsf & 0x00000000FFFFFFFFULL);
607 u32 hi = (tsf & 0xFFFFFFFF00000000ULL) >> 32;
608
609 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, 0);
610 mmiowb();
611 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, hi);
612 mmiowb();
613 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, lo);
614 } else {
615 u16 v0 = (tsf & 0x000000000000FFFFULL);
616 u16 v1 = (tsf & 0x00000000FFFF0000ULL) >> 16;
617 u16 v2 = (tsf & 0x0000FFFF00000000ULL) >> 32;
618 u16 v3 = (tsf & 0xFFFF000000000000ULL) >> 48;
619
620 b43_write16(dev, B43_MMIO_TSF_0, 0);
621 mmiowb();
622 b43_write16(dev, B43_MMIO_TSF_3, v3);
623 mmiowb();
624 b43_write16(dev, B43_MMIO_TSF_2, v2);
625 mmiowb();
626 b43_write16(dev, B43_MMIO_TSF_1, v1);
627 mmiowb();
628 b43_write16(dev, B43_MMIO_TSF_0, v0);
629 }
630}
631
632void b43_tsf_write(struct b43_wldev *dev, u64 tsf)
633{
634 b43_time_lock(dev);
635 b43_tsf_write_locked(dev, tsf);
636 b43_time_unlock(dev);
637}
638
639static
640void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 * mac)
641{
642 static const u8 zero_addr[ETH_ALEN] = { 0 };
643 u16 data;
644
645 if (!mac)
646 mac = zero_addr;
647
648 offset |= 0x0020;
649 b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset);
650
651 data = mac[0];
652 data |= mac[1] << 8;
653 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
654 data = mac[2];
655 data |= mac[3] << 8;
656 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
657 data = mac[4];
658 data |= mac[5] << 8;
659 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
660}
661
662static void b43_write_mac_bssid_templates(struct b43_wldev *dev)
663{
664 const u8 *mac;
665 const u8 *bssid;
666 u8 mac_bssid[ETH_ALEN * 2];
667 int i;
668 u32 tmp;
669
670 bssid = dev->wl->bssid;
671 mac = dev->wl->mac_addr;
672
673 b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid);
674
675 memcpy(mac_bssid, mac, ETH_ALEN);
676 memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN);
677
678 /* Write our MAC address and BSSID to template ram */
679 for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) {
680 tmp = (u32) (mac_bssid[i + 0]);
681 tmp |= (u32) (mac_bssid[i + 1]) << 8;
682 tmp |= (u32) (mac_bssid[i + 2]) << 16;
683 tmp |= (u32) (mac_bssid[i + 3]) << 24;
684 b43_ram_write(dev, 0x20 + i, tmp);
685 }
686}
687
4150c572 688static void b43_upload_card_macaddress(struct b43_wldev *dev)
e4d6b795 689{
e4d6b795 690 b43_write_mac_bssid_templates(dev);
4150c572 691 b43_macfilter_set(dev, B43_MACFILTER_SELF, dev->wl->mac_addr);
e4d6b795
MB		 692}
693
694static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time)
695{
696 /* slot_time is in usec. */
697 if (dev->phy.type != B43_PHYTYPE_G)
698 return;
699 b43_write16(dev, 0x684, 510 + slot_time);
700 b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time);
701}
702
703static void b43_short_slot_timing_enable(struct b43_wldev *dev)
704{
705 b43_set_slot_time(dev, 9);
706 dev->short_slot = 1;
707}
708
709static void b43_short_slot_timing_disable(struct b43_wldev *dev)
710{
711 b43_set_slot_time(dev, 20);
712 dev->short_slot = 0;
713}
714
715/* Enable a Generic IRQ. "mask" is the mask of which IRQs to enable.
716 * Returns the _previously_ enabled IRQ mask.
717 */
718static inline u32 b43_interrupt_enable(struct b43_wldev *dev, u32 mask)
719{
720 u32 old_mask;
721
722 old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
723 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask | mask);
724
725 return old_mask;
726}
727
728/* Disable a Generic IRQ. "mask" is the mask of which IRQs to disable.
729 * Returns the _previously_ enabled IRQ mask.
730 */
731static inline u32 b43_interrupt_disable(struct b43_wldev *dev, u32 mask)
732{
733 u32 old_mask;
734
735 old_mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
736 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, old_mask & ~mask);
737
738 return old_mask;
739}
740
741/* Synchronize IRQ top- and bottom-half.
742 * IRQs must be masked before calling this.
743 * This must not be called with the irq_lock held.
744 */
745static void b43_synchronize_irq(struct b43_wldev *dev)
746{
747 synchronize_irq(dev->dev->irq);
748 tasklet_kill(&dev->isr_tasklet);
749}
750
751/* DummyTransmission function, as documented on
752 * http://bcm-specs.sipsolutions.net/DummyTransmission
753 */
754void b43_dummy_transmission(struct b43_wldev *dev)
755{
21a75d77 756 struct b43_wl *wl = dev->wl;
e4d6b795
MB		 757 struct b43_phy *phy = &dev->phy;
758 unsigned int i, max_loop;
759 u16 value;
760 u32 buffer[5] = {
761 0x00000000,
762 0x00D40000,
763 0x00000000,
764 0x01000000,
765 0x00000000,
766 };
767
768 switch (phy->type) {
769 case B43_PHYTYPE_A:
770 max_loop = 0x1E;
771 buffer[0] = 0x000201CC;
772 break;
773 case B43_PHYTYPE_B:
774 case B43_PHYTYPE_G:
775 max_loop = 0xFA;
776 buffer[0] = 0x000B846E;
777 break;
778 default:
779 B43_WARN_ON(1);
780 return;
781 }
782
21a75d77
MB		 783 spin_lock_irq(&wl->irq_lock);
784 write_lock(&wl->tx_lock);
785
e4d6b795
MB		 786 for (i = 0; i < 5; i++)
787 b43_ram_write(dev, i * 4, buffer[i]);
788
789 /* Commit writes */
790 b43_read32(dev, B43_MMIO_MACCTL);
791
792 b43_write16(dev, 0x0568, 0x0000);
793 b43_write16(dev, 0x07C0, 0x0000);
794 value = ((phy->type == B43_PHYTYPE_A) ? 1 : 0);
795 b43_write16(dev, 0x050C, value);
796 b43_write16(dev, 0x0508, 0x0000);
797 b43_write16(dev, 0x050A, 0x0000);
798 b43_write16(dev, 0x054C, 0x0000);
799 b43_write16(dev, 0x056A, 0x0014);
800 b43_write16(dev, 0x0568, 0x0826);
801 b43_write16(dev, 0x0500, 0x0000);
802 b43_write16(dev, 0x0502, 0x0030);
803
804 if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
805 b43_radio_write16(dev, 0x0051, 0x0017);
806 for (i = 0x00; i < max_loop; i++) {
807 value = b43_read16(dev, 0x050E);
808 if (value & 0x0080)
809 break;
810 udelay(10);
811 }
812 for (i = 0x00; i < 0x0A; i++) {
813 value = b43_read16(dev, 0x050E);
814 if (value & 0x0400)
815 break;
816 udelay(10);
817 }
818 for (i = 0x00; i < 0x0A; i++) {
819 value = b43_read16(dev, 0x0690);
820 if (!(value & 0x0100))
821 break;
822 udelay(10);
823 }
824 if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
825 b43_radio_write16(dev, 0x0051, 0x0037);
21a75d77
MB		 826
827 write_unlock(&wl->tx_lock);
828 spin_unlock_irq(&wl->irq_lock);
e4d6b795
MB		 829}
830
831static void key_write(struct b43_wldev *dev,
832 u8 index, u8 algorithm, const u8 * key)
833{
834 unsigned int i;
835 u32 offset;
836 u16 value;
837 u16 kidx;
838
839 /* Key index/algo block */
840 kidx = b43_kidx_to_fw(dev, index);
841 value = ((kidx << 4) | algorithm);
842 b43_shm_write16(dev, B43_SHM_SHARED,
843 B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value);
844
845 /* Write the key to the Key Table Pointer offset */
846 offset = dev->ktp + (index * B43_SEC_KEYSIZE);
847 for (i = 0; i < B43_SEC_KEYSIZE; i += 2) {
848 value = key[i];
849 value |= (u16) (key[i + 1]) << 8;
850 b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value);
851 }
852}
853
854static void keymac_write(struct b43_wldev *dev, u8 index, const u8 * addr)
855{
856 u32 addrtmp[2] = { 0, 0, };
857 u8 per_sta_keys_start = 8;
858
859 if (b43_new_kidx_api(dev))
860 per_sta_keys_start = 4;
861
862 B43_WARN_ON(index < per_sta_keys_start);
863 /* We have two default TX keys and possibly two default RX keys.
864 * Physical mac 0 is mapped to physical key 4 or 8, depending
865 * on the firmware version.
866 * So we must adjust the index here.
867 */
868 index -= per_sta_keys_start;
869
870 if (addr) {
871 addrtmp[0] = addr[0];
872 addrtmp[0] |= ((u32) (addr[1]) << 8);
873 addrtmp[0] |= ((u32) (addr[2]) << 16);
874 addrtmp[0] |= ((u32) (addr[3]) << 24);
875 addrtmp[1] = addr[4];
876 addrtmp[1] |= ((u32) (addr[5]) << 8);
877 }
878
879 if (dev->dev->id.revision >= 5) {
880 /* Receive match transmitter address mechanism */
881 b43_shm_write32(dev, B43_SHM_RCMTA,
882 (index * 2) + 0, addrtmp[0]);
883 b43_shm_write16(dev, B43_SHM_RCMTA,
884 (index * 2) + 1, addrtmp[1]);
885 } else {
886 /* RXE (Receive Engine) and
887 * PSM (Programmable State Machine) mechanism
888 */
889 if (index < 8) {
890 /* TODO write to RCM 16, 19, 22 and 25 */
891 } else {
892 b43_shm_write32(dev, B43_SHM_SHARED,
893 B43_SHM_SH_PSM + (index * 6) + 0,
894 addrtmp[0]);
895 b43_shm_write16(dev, B43_SHM_SHARED,
896 B43_SHM_SH_PSM + (index * 6) + 4,
897 addrtmp[1]);
898 }
899 }
900}
901
902static void do_key_write(struct b43_wldev *dev,
903 u8 index, u8 algorithm,
904 const u8 * key, size_t key_len, const u8 * mac_addr)
905{
906 u8 buf[B43_SEC_KEYSIZE] = { 0, };
907 u8 per_sta_keys_start = 8;
908
909 if (b43_new_kidx_api(dev))
910 per_sta_keys_start = 4;
911
912 B43_WARN_ON(index >= dev->max_nr_keys);
913 B43_WARN_ON(key_len > B43_SEC_KEYSIZE);
914
915 if (index >= per_sta_keys_start)
916 keymac_write(dev, index, NULL); /* First zero out mac. */
917 if (key)
918 memcpy(buf, key, key_len);
919 key_write(dev, index, algorithm, buf);
920 if (index >= per_sta_keys_start)
921 keymac_write(dev, index, mac_addr);
922
923 dev->key[index].algorithm = algorithm;
924}
925
926static int b43_key_write(struct b43_wldev *dev,
927 int index, u8 algorithm,
928 const u8 * key, size_t key_len,
929 const u8 * mac_addr,
930 struct ieee80211_key_conf *keyconf)
931{
932 int i;
933 int sta_keys_start;
934
935 if (key_len > B43_SEC_KEYSIZE)
936 return -EINVAL;
937 for (i = 0; i < dev->max_nr_keys; i++) {
938 /* Check that we don't already have this key. */
939 B43_WARN_ON(dev->key[i].keyconf == keyconf);
940 }
941 if (index < 0) {
942 /* Either pairwise key or address is 00:00:00:00:00:00
943 * for transmit-only keys. Search the index. */
944 if (b43_new_kidx_api(dev))
945 sta_keys_start = 4;
946 else
947 sta_keys_start = 8;
948 for (i = sta_keys_start; i < dev->max_nr_keys; i++) {
949 if (!dev->key[i].keyconf) {
950 /* found empty */
951 index = i;
952 break;
953 }
954 }
955 if (index < 0) {
956 b43err(dev->wl, "Out of hardware key memory\n");
957 return -ENOSPC;
958 }
959 } else
960 B43_WARN_ON(index > 3);
961
962 do_key_write(dev, index, algorithm, key, key_len, mac_addr);
963 if ((index <= 3) && !b43_new_kidx_api(dev)) {
964 /* Default RX key */
965 B43_WARN_ON(mac_addr);
966 do_key_write(dev, index + 4, algorithm, key, key_len, NULL);
967 }
968 keyconf->hw_key_idx = index;
969 dev->key[index].keyconf = keyconf;
970
971 return 0;
972}
973
974static int b43_key_clear(struct b43_wldev *dev, int index)
975{
976 if (B43_WARN_ON((index < 0) || (index >= dev->max_nr_keys)))
977 return -EINVAL;
978 do_key_write(dev, index, B43_SEC_ALGO_NONE,
979 NULL, B43_SEC_KEYSIZE, NULL);
980 if ((index <= 3) && !b43_new_kidx_api(dev)) {
981 do_key_write(dev, index + 4, B43_SEC_ALGO_NONE,
982 NULL, B43_SEC_KEYSIZE, NULL);
983 }
984 dev->key[index].keyconf = NULL;
985
986 return 0;
987}
988
989static void b43_clear_keys(struct b43_wldev *dev)
990{
991 int i;
992
993 for (i = 0; i < dev->max_nr_keys; i++)
994 b43_key_clear(dev, i);
995}
996
997void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags)
998{
999 u32 macctl;
1000 u16 ucstat;
1001 bool hwps;
1002 bool awake;
1003 int i;
1004
1005 B43_WARN_ON((ps_flags & B43_PS_ENABLED) &&
1006 (ps_flags & B43_PS_DISABLED));
1007 B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP));
1008
1009 if (ps_flags & B43_PS_ENABLED) {
1010 hwps = 1;
1011 } else if (ps_flags & B43_PS_DISABLED) {
1012 hwps = 0;
1013 } else {
1014 //TODO: If powersave is not off and FIXME is not set and we are not in adhoc
1015 // and thus is not an AP and we are associated, set bit 25
1016 }
1017 if (ps_flags & B43_PS_AWAKE) {
1018 awake = 1;
1019 } else if (ps_flags & B43_PS_ASLEEP) {
1020 awake = 0;
1021 } else {
1022 //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME,
1023 // or we are associated, or FIXME, or the latest PS-Poll packet sent was
1024 // successful, set bit26
1025 }
1026
1027/* FIXME: For now we force awake-on and hwps-off */
1028 hwps = 0;
1029 awake = 1;
1030
1031 macctl = b43_read32(dev, B43_MMIO_MACCTL);
1032 if (hwps)
1033 macctl |= B43_MACCTL_HWPS;
1034 else
1035 macctl &= ~B43_MACCTL_HWPS;
1036 if (awake)
1037 macctl |= B43_MACCTL_AWAKE;
1038 else
1039 macctl &= ~B43_MACCTL_AWAKE;
1040 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1041 /* Commit write */
1042 b43_read32(dev, B43_MMIO_MACCTL);
1043 if (awake && dev->dev->id.revision >= 5) {
1044 /* Wait for the microcode to wake up. */
1045 for (i = 0; i < 100; i++) {
1046 ucstat = b43_shm_read16(dev, B43_SHM_SHARED,
1047 B43_SHM_SH_UCODESTAT);
1048 if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP)
1049 break;
1050 udelay(10);
1051 }
1052 }
1053}
1054
1055/* Turn the Analog ON/OFF */
1056static void b43_switch_analog(struct b43_wldev *dev, int on)
1057{
7b584163
MB		 1058 switch (dev->phy.type) {
1059 case B43_PHYTYPE_A:
1060 case B43_PHYTYPE_G:
1061 b43_write16(dev, B43_MMIO_PHY0, on ? 0 : 0xF4);
1062 break;
1063 case B43_PHYTYPE_N:
1064 b43_phy_write(dev, B43_NPHY_AFECTL_OVER,
1065 on ? 0 : 0x7FFF);
1066 break;
1067 default:
1068 B43_WARN_ON(1);
1069 }
e4d6b795
MB		 1070}
1071
1072void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags)
1073{
1074 u32 tmslow;
1075 u32 macctl;
1076
1077 flags |= B43_TMSLOW_PHYCLKEN;
1078 flags |= B43_TMSLOW_PHYRESET;
1079 ssb_device_enable(dev->dev, flags);
1080 msleep(2); /* Wait for the PLL to turn on. */
1081
1082 /* Now take the PHY out of Reset again */
1083 tmslow = ssb_read32(dev->dev, SSB_TMSLOW);
1084 tmslow |= SSB_TMSLOW_FGC;
1085 tmslow &= ~B43_TMSLOW_PHYRESET;
1086 ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
1087 ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
1088 msleep(1);
1089 tmslow &= ~SSB_TMSLOW_FGC;
1090 ssb_write32(dev->dev, SSB_TMSLOW, tmslow);
1091 ssb_read32(dev->dev, SSB_TMSLOW); /* flush */
1092 msleep(1);
1093
1094 /* Turn Analog ON */
1095 b43_switch_analog(dev, 1);
1096
1097 macctl = b43_read32(dev, B43_MMIO_MACCTL);
1098 macctl &= ~B43_MACCTL_GMODE;
1099 if (flags & B43_TMSLOW_GMODE)
1100 macctl |= B43_MACCTL_GMODE;
1101 macctl |= B43_MACCTL_IHR_ENABLED;
1102 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1103}
1104
1105static void handle_irq_transmit_status(struct b43_wldev *dev)
1106{
1107 u32 v0, v1;
1108 u16 tmp;
1109 struct b43_txstatus stat;
1110
1111 while (1) {
1112 v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1113 if (!(v0 & 0x00000001))
1114 break;
1115 v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1116
1117 stat.cookie = (v0 >> 16);
1118 stat.seq = (v1 & 0x0000FFFF);
1119 stat.phy_stat = ((v1 & 0x00FF0000) >> 16);
1120 tmp = (v0 & 0x0000FFFF);
1121 stat.frame_count = ((tmp & 0xF000) >> 12);
1122 stat.rts_count = ((tmp & 0x0F00) >> 8);
1123 stat.supp_reason = ((tmp & 0x001C) >> 2);
1124 stat.pm_indicated = !!(tmp & 0x0080);
1125 stat.intermediate = !!(tmp & 0x0040);
1126 stat.for_ampdu = !!(tmp & 0x0020);
1127 stat.acked = !!(tmp & 0x0002);
1128
1129 b43_handle_txstatus(dev, &stat);
1130 }
1131}
1132
1133static void drain_txstatus_queue(struct b43_wldev *dev)
1134{
1135 u32 dummy;
1136
1137 if (dev->dev->id.revision < 5)
1138 return;
1139 /* Read all entries from the microcode TXstatus FIFO
1140 * and throw them away.
1141 */
1142 while (1) {
1143 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1144 if (!(dummy & 0x00000001))
1145 break;
1146 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1147 }
1148}
1149
1150static u32 b43_jssi_read(struct b43_wldev *dev)
1151{
1152 u32 val = 0;
1153
1154 val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A);
1155 val <<= 16;
1156 val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088);
1157
1158 return val;
1159}
1160
1161static void b43_jssi_write(struct b43_wldev *dev, u32 jssi)
1162{
1163 b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF));
1164 b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16);
1165}
1166
1167static void b43_generate_noise_sample(struct b43_wldev *dev)
1168{
1169 b43_jssi_write(dev, 0x7F7F7F7F);
aa6c7ae2
MB		 1170 b43_write32(dev, B43_MMIO_MACCMD,
1171 b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE);
e4d6b795
MB		 1172}
1173
1174static void b43_calculate_link_quality(struct b43_wldev *dev)
1175{
1176 /* Top half of Link Quality calculation. */
1177
ef1a628d
MB		 1178 if (dev->phy.type != B43_PHYTYPE_G)
1179 return;
e4d6b795
MB		 1180 if (dev->noisecalc.calculation_running)
1181 return;
e4d6b795
MB		 1182 dev->noisecalc.calculation_running = 1;
1183 dev->noisecalc.nr_samples = 0;
1184
1185 b43_generate_noise_sample(dev);
1186}
1187
1188static void handle_irq_noise(struct b43_wldev *dev)
1189{
ef1a628d 1190 struct b43_phy_g *phy = dev->phy.g;
e4d6b795
MB		 1191 u16 tmp;
1192 u8 noise[4];
1193 u8 i, j;
1194 s32 average;
1195
1196 /* Bottom half of Link Quality calculation. */
1197
ef1a628d
MB		 1198 if (dev->phy.type != B43_PHYTYPE_G)
1199 return;
1200
98a3b2fe
MB		 1201 /* Possible race condition: It might be possible that the user
1202 * changed to a different channel in the meantime since we
1203 * started the calculation. We ignore that fact, since it's
1204 * not really that much of a problem. The background noise is
1205 * an estimation only anyway. Slightly wrong results will get damped
1206 * by the averaging of the 8 sample rounds. Additionally the
1207 * value is shortlived. So it will be replaced by the next noise
1208 * calculation round soon. */
1209
e4d6b795 1210 B43_WARN_ON(!dev->noisecalc.calculation_running);
1a09404a 1211 *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev));
e4d6b795
MB		 1212 if (noise[0] == 0x7F || noise[1] == 0x7F ||
1213 noise[2] == 0x7F || noise[3] == 0x7F)
1214 goto generate_new;
1215
1216 /* Get the noise samples. */
1217 B43_WARN_ON(dev->noisecalc.nr_samples >= 8);
1218 i = dev->noisecalc.nr_samples;
cdbf0846
HH		 1219 noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1220 noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1221 noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1222 noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
e4d6b795
MB		 1223 dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]];
1224 dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]];
1225 dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]];
1226 dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]];
1227 dev->noisecalc.nr_samples++;
1228 if (dev->noisecalc.nr_samples == 8) {
1229 /* Calculate the Link Quality by the noise samples. */
1230 average = 0;
1231 for (i = 0; i < 8; i++) {
1232 for (j = 0; j < 4; j++)
1233 average += dev->noisecalc.samples[i][j];
1234 }
1235 average /= (8 * 4);
1236 average *= 125;
1237 average += 64;
1238 average /= 128;
1239 tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C);
1240 tmp = (tmp / 128) & 0x1F;
1241 if (tmp >= 8)
1242 average += 2;
1243 else
1244 average -= 25;
1245 if (tmp == 8)
1246 average -= 72;
1247 else
1248 average -= 48;
1249
1250 dev->stats.link_noise = average;
e4d6b795
MB		 1251 dev->noisecalc.calculation_running = 0;
1252 return;
1253 }
98a3b2fe 1254generate_new:
e4d6b795
MB		 1255 b43_generate_noise_sample(dev);
1256}
1257
1258static void handle_irq_tbtt_indication(struct b43_wldev *dev)
1259{
1260 if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_AP)) {
1261 ///TODO: PS TBTT
1262 } else {
1263 if (1 /*FIXME: the last PSpoll frame was sent successfully */ )
1264 b43_power_saving_ctl_bits(dev, 0);
1265 }
e4d6b795 1266 if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS))
aa6c7ae2 1267 dev->dfq_valid = 1;
e4d6b795
MB		 1268}
1269
1270static void handle_irq_atim_end(struct b43_wldev *dev)
1271{
aa6c7ae2
MB		 1272 if (dev->dfq_valid) {
1273 b43_write32(dev, B43_MMIO_MACCMD,
1274 b43_read32(dev, B43_MMIO_MACCMD)
1275 | B43_MACCMD_DFQ_VALID);
1276 dev->dfq_valid = 0;
1277 }
e4d6b795
MB		 1278}
1279
1280static void handle_irq_pmq(struct b43_wldev *dev)
1281{
1282 u32 tmp;
1283
1284 //TODO: AP mode.
1285
1286 while (1) {
1287 tmp = b43_read32(dev, B43_MMIO_PS_STATUS);
1288 if (!(tmp & 0x00000008))
1289 break;
1290 }
1291 /* 16bit write is odd, but correct. */
1292 b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002);
1293}
1294
1295static void b43_write_template_common(struct b43_wldev *dev,
1296 const u8 * data, u16 size,
1297 u16 ram_offset,
1298 u16 shm_size_offset, u8 rate)
1299{
1300 u32 i, tmp;
1301 struct b43_plcp_hdr4 plcp;
1302
1303 plcp.data = 0;
1304 b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
1305 b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data));
1306 ram_offset += sizeof(u32);
1307 /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet.
1308 * So leave the first two bytes of the next write blank.
1309 */
1310 tmp = (u32) (data[0]) << 16;
1311 tmp |= (u32) (data[1]) << 24;
1312 b43_ram_write(dev, ram_offset, tmp);
1313 ram_offset += sizeof(u32);
1314 for (i = 2; i < size; i += sizeof(u32)) {
1315 tmp = (u32) (data[i + 0]);
1316 if (i + 1 < size)
1317 tmp |= (u32) (data[i + 1]) << 8;
1318 if (i + 2 < size)
1319 tmp |= (u32) (data[i + 2]) << 16;
1320 if (i + 3 < size)
1321 tmp |= (u32) (data[i + 3]) << 24;
1322 b43_ram_write(dev, ram_offset + i - 2, tmp);
1323 }
1324 b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset,
1325 size + sizeof(struct b43_plcp_hdr6));
1326}
1327
5042c507
MB		 1328/* Check if the use of the antenna that ieee80211 told us to
1329 * use is possible. This will fall back to DEFAULT.
1330 * "antenna_nr" is the antenna identifier we got from ieee80211. */
1331u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev,
1332 u8 antenna_nr)
1333{
1334 u8 antenna_mask;
1335
1336 if (antenna_nr == 0) {
1337 /* Zero means "use default antenna". That's always OK. */
1338 return 0;
1339 }
1340
1341 /* Get the mask of available antennas. */
1342 if (dev->phy.gmode)
1343 antenna_mask = dev->dev->bus->sprom.ant_available_bg;
1344 else
1345 antenna_mask = dev->dev->bus->sprom.ant_available_a;
1346
1347 if (!(antenna_mask & (1 << (antenna_nr - 1)))) {
1348 /* This antenna is not available. Fall back to default. */
1349 return 0;
1350 }
1351
1352 return antenna_nr;
1353}
1354
1355static int b43_antenna_from_ieee80211(struct b43_wldev *dev, u8 antenna)
1356{
1357 antenna = b43_ieee80211_antenna_sanitize(dev, antenna);
1358 switch (antenna) {
1359 case 0: /* default/diversity */
1360 return B43_ANTENNA_DEFAULT;
1361 case 1: /* Antenna 0 */
1362 return B43_ANTENNA0;
1363 case 2: /* Antenna 1 */
1364 return B43_ANTENNA1;
1365 case 3: /* Antenna 2 */
1366 return B43_ANTENNA2;
1367 case 4: /* Antenna 3 */
1368 return B43_ANTENNA3;
1369 default:
1370 return B43_ANTENNA_DEFAULT;
1371 }
1372}
1373
1374/* Convert a b43 antenna number value to the PHY TX control value. */
1375static u16 b43_antenna_to_phyctl(int antenna)
1376{
1377 switch (antenna) {
1378 case B43_ANTENNA0:
1379 return B43_TXH_PHY_ANT0;
1380 case B43_ANTENNA1:
1381 return B43_TXH_PHY_ANT1;
1382 case B43_ANTENNA2:
1383 return B43_TXH_PHY_ANT2;
1384 case B43_ANTENNA3:
1385 return B43_TXH_PHY_ANT3;
1386 case B43_ANTENNA_AUTO:
1387 return B43_TXH_PHY_ANT01AUTO;
1388 }
1389 B43_WARN_ON(1);
1390 return 0;
1391}
1392
e4d6b795
MB		 1393static void b43_write_beacon_template(struct b43_wldev *dev,
1394 u16 ram_offset,
5042c507 1395 u16 shm_size_offset)
e4d6b795 1396{
47f76ca3 1397 unsigned int i, len, variable_len;
e66fee6a
MB		 1398 const struct ieee80211_mgmt *bcn;
1399 const u8 *ie;
1400 bool tim_found = 0;
5042c507
MB		 1401 unsigned int rate;
1402 u16 ctl;
1403 int antenna;
e039fa4a 1404 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon);
e4d6b795 1405
e66fee6a
MB		 1406 bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data);
1407 len = min((size_t) dev->wl->current_beacon->len,
e4d6b795 1408 0x200 - sizeof(struct b43_plcp_hdr6));
e039fa4a 1409 rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value;
e66fee6a
MB		 1410
1411 b43_write_template_common(dev, (const u8 *)bcn,
e4d6b795 1412 len, ram_offset, shm_size_offset, rate);
e66fee6a 1413
5042c507 1414 /* Write the PHY TX control parameters. */
e039fa4a 1415 antenna = b43_antenna_from_ieee80211(dev, info->antenna_sel_tx);
5042c507
MB		 1416 antenna = b43_antenna_to_phyctl(antenna);
1417 ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL);
1418 /* We can't send beacons with short preamble. Would get PHY errors. */
1419 ctl &= ~B43_TXH_PHY_SHORTPRMBL;
1420 ctl &= ~B43_TXH_PHY_ANT;
1421 ctl &= ~B43_TXH_PHY_ENC;
1422 ctl |= antenna;
1423 if (b43_is_cck_rate(rate))
1424 ctl |= B43_TXH_PHY_ENC_CCK;
1425 else
1426 ctl |= B43_TXH_PHY_ENC_OFDM;
1427 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl);
1428
e66fee6a
MB		 1429 /* Find the position of the TIM and the DTIM_period value
1430 * and write them to SHM. */
1431 ie = bcn->u.beacon.variable;
47f76ca3
MB		 1432 variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
1433 for (i = 0; i < variable_len - 2; ) {
e66fee6a
MB		 1434 uint8_t ie_id, ie_len;
1435
1436 ie_id = ie[i];
1437 ie_len = ie[i + 1];
1438 if (ie_id == 5) {
1439 u16 tim_position;
1440 u16 dtim_period;
1441 /* This is the TIM Information Element */
1442
1443 /* Check whether the ie_len is in the beacon data range. */
47f76ca3 1444 if (variable_len < ie_len + 2 + i)
e66fee6a
MB		 1445 break;
1446 /* A valid TIM is at least 4 bytes long. */
1447 if (ie_len < 4)
1448 break;
1449 tim_found = 1;
1450
1451 tim_position = sizeof(struct b43_plcp_hdr6);
1452 tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable);
1453 tim_position += i;
1454
1455 dtim_period = ie[i + 3];
1456
1457 b43_shm_write16(dev, B43_SHM_SHARED,
1458 B43_SHM_SH_TIMBPOS, tim_position);
1459 b43_shm_write16(dev, B43_SHM_SHARED,
1460 B43_SHM_SH_DTIMPER, dtim_period);
1461 break;
1462 }
1463 i += ie_len + 2;
1464 }
1465 if (!tim_found) {
04dea136
JB		 1466 /*
1467 * If ucode wants to modify TIM do it behind the beacon, this
1468 * will happen, for example, when doing mesh networking.
1469 */
1470 b43_shm_write16(dev, B43_SHM_SHARED,
1471 B43_SHM_SH_TIMBPOS,
1472 len + sizeof(struct b43_plcp_hdr6));
1473 b43_shm_write16(dev, B43_SHM_SHARED,
1474 B43_SHM_SH_DTIMPER, 0);
1475 }
1476 b43dbg(dev->wl, "Updated beacon template at 0x%x\n", ram_offset);
e4d6b795
MB		 1477}
1478
1479static void b43_write_probe_resp_plcp(struct b43_wldev *dev,
8318d78a
JB		 1480 u16 shm_offset, u16 size,
1481 struct ieee80211_rate *rate)
e4d6b795
MB		 1482{
1483 struct b43_plcp_hdr4 plcp;
1484 u32 tmp;
1485 __le16 dur;
1486
1487 plcp.data = 0;
8318d78a 1488 b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate->hw_value);
e4d6b795 1489 dur = ieee80211_generic_frame_duration(dev->wl->hw,
32bfd35d 1490 dev->wl->vif, size,
8318d78a 1491 rate);
e4d6b795
MB		 1492 /* Write PLCP in two parts and timing for packet transfer */
1493 tmp = le32_to_cpu(plcp.data);
1494 b43_shm_write16(dev, B43_SHM_SHARED, shm_offset, tmp & 0xFFFF);
1495 b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 2, tmp >> 16);
1496 b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 6, le16_to_cpu(dur));
1497}
1498
1499/* Instead of using custom probe response template, this function
1500 * just patches custom beacon template by:
1501 * 1) Changing packet type
1502 * 2) Patching duration field
1503 * 3) Stripping TIM
1504 */
e66fee6a 1505static const u8 * b43_generate_probe_resp(struct b43_wldev *dev,
8318d78a
JB		 1506 u16 *dest_size,
1507 struct ieee80211_rate *rate)
e4d6b795
MB		 1508{
1509 const u8 *src_data;
1510 u8 *dest_data;
1511 u16 src_size, elem_size, src_pos, dest_pos;
1512 __le16 dur;
1513 struct ieee80211_hdr *hdr;
e66fee6a
MB		 1514 size_t ie_start;
1515
1516 src_size = dev->wl->current_beacon->len;
1517 src_data = (const u8 *)dev->wl->current_beacon->data;
e4d6b795 1518
e66fee6a
MB		 1519 /* Get the start offset of the variable IEs in the packet. */
1520 ie_start = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
1521 B43_WARN_ON(ie_start != offsetof(struct ieee80211_mgmt, u.beacon.variable));
e4d6b795 1522
e66fee6a 1523 if (B43_WARN_ON(src_size < ie_start))
e4d6b795 1524 return NULL;
e4d6b795
MB		 1525
1526 dest_data = kmalloc(src_size, GFP_ATOMIC);
1527 if (unlikely(!dest_data))
1528 return NULL;
1529
e66fee6a
MB		 1530 /* Copy the static data and all Information Elements, except the TIM. */
1531 memcpy(dest_data, src_data, ie_start);
1532 src_pos = ie_start;
1533 dest_pos = ie_start;
1534 for ( ; src_pos < src_size - 2; src_pos += elem_size) {
e4d6b795 1535 elem_size = src_data[src_pos + 1] + 2;
e66fee6a
MB		 1536 if (src_data[src_pos] == 5) {
1537 /* This is the TIM. */
1538 continue;
e4d6b795 1539 }
e66fee6a
MB		 1540 memcpy(dest_data + dest_pos, src_data + src_pos,
1541 elem_size);
1542 dest_pos += elem_size;
e4d6b795
MB		 1543 }
1544 *dest_size = dest_pos;
1545 hdr = (struct ieee80211_hdr *)dest_data;
1546
1547 /* Set the frame control. */
1548 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1549 IEEE80211_STYPE_PROBE_RESP);
1550 dur = ieee80211_generic_frame_duration(dev->wl->hw,
32bfd35d 1551 dev->wl->vif, *dest_size,
8318d78a 1552 rate);
e4d6b795
MB		 1553 hdr->duration_id = dur;
1554
1555 return dest_data;
1556}
1557
1558static void b43_write_probe_resp_template(struct b43_wldev *dev,
1559 u16 ram_offset,
8318d78a
JB		 1560 u16 shm_size_offset,
1561 struct ieee80211_rate *rate)
e4d6b795 1562{
e66fee6a 1563 const u8 *probe_resp_data;
e4d6b795
MB		 1564 u16 size;
1565
e66fee6a 1566 size = dev->wl->current_beacon->len;
e4d6b795
MB		 1567 probe_resp_data = b43_generate_probe_resp(dev, &size, rate);
1568 if (unlikely(!probe_resp_data))
1569 return;
1570
1571 /* Looks like PLCP headers plus packet timings are stored for
1572 * all possible basic rates
1573 */
8318d78a
JB		 1574 b43_write_probe_resp_plcp(dev, 0x31A, size, &b43_b_ratetable[0]);
1575 b43_write_probe_resp_plcp(dev, 0x32C, size, &b43_b_ratetable[1]);
1576 b43_write_probe_resp_plcp(dev, 0x33E, size, &b43_b_ratetable[2]);
1577 b43_write_probe_resp_plcp(dev, 0x350, size, &b43_b_ratetable[3]);
e4d6b795
MB		 1578
1579 size = min((size_t) size, 0x200 - sizeof(struct b43_plcp_hdr6));
1580 b43_write_template_common(dev, probe_resp_data,
8318d78a
JB		 1581 size, ram_offset, shm_size_offset,
1582 rate->hw_value);
e4d6b795
MB		 1583 kfree(probe_resp_data);
1584}
1585
6b4bec01
MB		 1586static void b43_upload_beacon0(struct b43_wldev *dev)
1587{
1588 struct b43_wl *wl = dev->wl;
1589
1590 if (wl->beacon0_uploaded)
1591 return;
1592 b43_write_beacon_template(dev, 0x68, 0x18);
1593 /* FIXME: Probe resp upload doesn't really belong here,
1594 * but we don't use that feature anyway. */
1595 b43_write_probe_resp_template(dev, 0x268, 0x4A,
1596 &__b43_ratetable[3]);
1597 wl->beacon0_uploaded = 1;
1598}
1599
1600static void b43_upload_beacon1(struct b43_wldev *dev)
1601{
1602 struct b43_wl *wl = dev->wl;
1603
1604 if (wl->beacon1_uploaded)
1605 return;
1606 b43_write_beacon_template(dev, 0x468, 0x1A);
1607 wl->beacon1_uploaded = 1;
1608}
1609
c97a4ccc
MB		 1610static void handle_irq_beacon(struct b43_wldev *dev)
1611{
1612 struct b43_wl *wl = dev->wl;
1613 u32 cmd, beacon0_valid, beacon1_valid;
1614
04dea136
JB		 1615 if (!b43_is_mode(wl, IEEE80211_IF_TYPE_AP) &&
1616 !b43_is_mode(wl, IEEE80211_IF_TYPE_MESH_POINT))
c97a4ccc
MB		 1617 return;
1618
1619 /* This is the bottom half of the asynchronous beacon update. */
1620
1621 /* Ignore interrupt in the future. */
1622 dev->irq_savedstate &= ~B43_IRQ_BEACON;
1623
1624 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1625 beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID);
1626 beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID);
1627
1628 /* Schedule interrupt manually, if busy. */
1629 if (beacon0_valid && beacon1_valid) {
1630 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON);
1631 dev->irq_savedstate |= B43_IRQ_BEACON;
1632 return;
1633 }
1634
6b4bec01
MB		 1635 if (unlikely(wl->beacon_templates_virgin)) {
1636 /* We never uploaded a beacon before.
1637 * Upload both templates now, but only mark one valid. */
1638 wl->beacon_templates_virgin = 0;
1639 b43_upload_beacon0(dev);
1640 b43_upload_beacon1(dev);
c97a4ccc
MB		 1641 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1642 cmd |= B43_MACCMD_BEACON0_VALID;
1643 b43_write32(dev, B43_MMIO_MACCMD, cmd);
6b4bec01
MB		 1644 } else {
1645 if (!beacon0_valid) {
1646 b43_upload_beacon0(dev);
1647 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1648 cmd |= B43_MACCMD_BEACON0_VALID;
1649 b43_write32(dev, B43_MMIO_MACCMD, cmd);
1650 } else if (!beacon1_valid) {
1651 b43_upload_beacon1(dev);
1652 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1653 cmd |= B43_MACCMD_BEACON1_VALID;
1654 b43_write32(dev, B43_MMIO_MACCMD, cmd);
c97a4ccc 1655 }
c97a4ccc
MB		 1656 }
1657}
1658
a82d9922
MB		 1659static void b43_beacon_update_trigger_work(struct work_struct *work)
1660{
1661 struct b43_wl *wl = container_of(work, struct b43_wl,
1662 beacon_update_trigger);
1663 struct b43_wldev *dev;
1664
1665 mutex_lock(&wl->mutex);
1666 dev = wl->current_dev;
1667 if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) {
a82d9922 1668 spin_lock_irq(&wl->irq_lock);
c97a4ccc
MB		 1669 /* update beacon right away or defer to irq */
1670 dev->irq_savedstate = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
1671 handle_irq_beacon(dev);
1672 /* The handler might have updated the IRQ mask. */
1673 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK,
1674 dev->irq_savedstate);
1675 mmiowb();
a82d9922
MB		 1676 spin_unlock_irq(&wl->irq_lock);
1677 }
1678 mutex_unlock(&wl->mutex);
1679}
1680
d4df6f1a
MB		 1681/* Asynchronously update the packet templates in template RAM.
1682 * Locking: Requires wl->irq_lock to be locked. */
9d139c81 1683static void b43_update_templates(struct b43_wl *wl)
e4d6b795 1684{
9d139c81
JB		 1685 struct sk_buff *beacon;
1686
e66fee6a
MB		 1687 /* This is the top half of the ansynchronous beacon update.
1688 * The bottom half is the beacon IRQ.
1689 * Beacon update must be asynchronous to avoid sending an
1690 * invalid beacon. This can happen for example, if the firmware
1691 * transmits a beacon while we are updating it. */
e4d6b795 1692
9d139c81
JB		 1693 /* We could modify the existing beacon and set the aid bit in
1694 * the TIM field, but that would probably require resizing and
1695 * moving of data within the beacon template.
1696 * Simply request a new beacon and let mac80211 do the hard work. */
1697 beacon = ieee80211_beacon_get(wl->hw, wl->vif);
1698 if (unlikely(!beacon))
1699 return;
1700
e66fee6a
MB		 1701 if (wl->current_beacon)
1702 dev_kfree_skb_any(wl->current_beacon);
1703 wl->current_beacon = beacon;
1704 wl->beacon0_uploaded = 0;
1705 wl->beacon1_uploaded = 0;
a82d9922 1706 queue_work(wl->hw->workqueue, &wl->beacon_update_trigger);
e4d6b795
MB		 1707}
1708
1709static void b43_set_ssid(struct b43_wldev *dev, const u8 * ssid, u8 ssid_len)
1710{
1711 u32 tmp;
1712 u16 i, len;
1713
1714 len = min((u16) ssid_len, (u16) 0x100);
1715 for (i = 0; i < len; i += sizeof(u32)) {
1716 tmp = (u32) (ssid[i + 0]);
1717 if (i + 1 < len)
1718 tmp |= (u32) (ssid[i + 1]) << 8;
1719 if (i + 2 < len)
1720 tmp |= (u32) (ssid[i + 2]) << 16;
1721 if (i + 3 < len)
1722 tmp |= (u32) (ssid[i + 3]) << 24;
1723 b43_shm_write32(dev, B43_SHM_SHARED, 0x380 + i, tmp);
1724 }
1725 b43_shm_write16(dev, B43_SHM_SHARED, 0x48, len);
1726}
1727
1728static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int)
1729{
1730 b43_time_lock(dev);
1731 if (dev->dev->id.revision >= 3) {
a82d9922
MB		 1732 b43_write32(dev, B43_MMIO_TSF_CFP_REP, (beacon_int << 16));
1733 b43_write32(dev, B43_MMIO_TSF_CFP_START, (beacon_int << 10));
e4d6b795
MB		 1734 } else {
1735 b43_write16(dev, 0x606, (beacon_int >> 6));
1736 b43_write16(dev, 0x610, beacon_int);
1737 }
1738 b43_time_unlock(dev);
a82d9922 1739 b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int);
e4d6b795
MB		 1740}
1741
afa83e23
MB		 1742static void b43_handle_firmware_panic(struct b43_wldev *dev)
1743{
1744 u16 reason;
1745
1746 /* Read the register that contains the reason code for the panic. */
1747 reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_FWPANIC_REASON_REG);
1748 b43err(dev->wl, "Whoopsy, firmware panic! Reason: %u\n", reason);
1749
1750 switch (reason) {
1751 default:
1752 b43dbg(dev->wl, "The panic reason is unknown.\n");
1753 /* fallthrough */
1754 case B43_FWPANIC_DIE:
1755 /* Do not restart the controller or firmware.
1756 * The device is nonfunctional from now on.
1757 * Restarting would result in this panic to trigger again,
1758 * so we avoid that recursion. */
1759 break;
1760 case B43_FWPANIC_RESTART:
1761 b43_controller_restart(dev, "Microcode panic");
1762 break;
1763 }
1764}
1765
e4d6b795
MB		 1766static void handle_irq_ucode_debug(struct b43_wldev *dev)
1767{
e48b0eeb 1768 unsigned int i, cnt;
53c06856 1769 u16 reason, marker_id, marker_line;
e48b0eeb
MB		 1770 __le16 *buf;
1771
1772 /* The proprietary firmware doesn't have this IRQ. */
1773 if (!dev->fw.opensource)
1774 return;
1775
afa83e23
MB		 1776 /* Read the register that contains the reason code for this IRQ. */
1777 reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_DEBUGIRQ_REASON_REG);
1778
e48b0eeb
MB		 1779 switch (reason) {
1780 case B43_DEBUGIRQ_PANIC:
afa83e23 1781 b43_handle_firmware_panic(dev);
e48b0eeb
MB		 1782 break;
1783 case B43_DEBUGIRQ_DUMP_SHM:
1784 if (!B43_DEBUG)
1785 break; /* Only with driver debugging enabled. */
1786 buf = kmalloc(4096, GFP_ATOMIC);
1787 if (!buf) {
1788 b43dbg(dev->wl, "SHM-dump: Failed to allocate memory\n");
1789 goto out;
1790 }
1791 for (i = 0; i < 4096; i += 2) {
1792 u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, i);
1793 buf[i / 2] = cpu_to_le16(tmp);
1794 }
1795 b43info(dev->wl, "Shared memory dump:\n");
1796 print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET,
1797 16, 2, buf, 4096, 1);
1798 kfree(buf);
1799 break;
1800 case B43_DEBUGIRQ_DUMP_REGS:
1801 if (!B43_DEBUG)
1802 break; /* Only with driver debugging enabled. */
1803 b43info(dev->wl, "Microcode register dump:\n");
1804 for (i = 0, cnt = 0; i < 64; i++) {
1805 u16 tmp = b43_shm_read16(dev, B43_SHM_SCRATCH, i);
1806 if (cnt == 0)
1807 printk(KERN_INFO);
1808 printk("r%02u: 0x%04X ", i, tmp);
1809 cnt++;
1810 if (cnt == 6) {
1811 printk("\n");
1812 cnt = 0;
1813 }
1814 }
1815 printk("\n");
1816 break;
53c06856
MB		 1817 case B43_DEBUGIRQ_MARKER:
1818 if (!B43_DEBUG)
1819 break; /* Only with driver debugging enabled. */
1820 marker_id = b43_shm_read16(dev, B43_SHM_SCRATCH,
1821 B43_MARKER_ID_REG);
1822 marker_line = b43_shm_read16(dev, B43_SHM_SCRATCH,
1823 B43_MARKER_LINE_REG);
1824 b43info(dev->wl, "The firmware just executed the MARKER(%u) "
1825 "at line number %u\n",
1826 marker_id, marker_line);
1827 break;
e48b0eeb
MB		 1828 default:
1829 b43dbg(dev->wl, "Debug-IRQ triggered for unknown reason: %u\n",
1830 reason);
1831 }
1832out:
afa83e23
MB		 1833 /* Acknowledge the debug-IRQ, so the firmware can continue. */
1834 b43_shm_write16(dev, B43_SHM_SCRATCH,
1835 B43_DEBUGIRQ_REASON_REG, B43_DEBUGIRQ_ACK);
e4d6b795
MB		 1836}
1837
1838/* Interrupt handler bottom-half */
1839static void b43_interrupt_tasklet(struct b43_wldev *dev)
1840{
1841 u32 reason;
1842 u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
1843 u32 merged_dma_reason = 0;
21954c36 1844 int i;
e4d6b795
MB		 1845 unsigned long flags;
1846
1847 spin_lock_irqsave(&dev->wl->irq_lock, flags);
1848
1849 B43_WARN_ON(b43_status(dev) != B43_STAT_STARTED);
1850
1851 reason = dev->irq_reason;
1852 for (i = 0; i < ARRAY_SIZE(dma_reason); i++) {
1853 dma_reason[i] = dev->dma_reason[i];
1854 merged_dma_reason |= dma_reason[i];
1855 }
1856
1857 if (unlikely(reason & B43_IRQ_MAC_TXERR))
1858 b43err(dev->wl, "MAC transmission error\n");
1859
00e0b8cb 1860 if (unlikely(reason & B43_IRQ_PHY_TXERR)) {
e4d6b795 1861 b43err(dev->wl, "PHY transmission error\n");
00e0b8cb
SB		 1862 rmb();
1863 if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) {
1864 atomic_set(&dev->phy.txerr_cnt,
1865 B43_PHY_TX_BADNESS_LIMIT);
1866 b43err(dev->wl, "Too many PHY TX errors, "
1867 "restarting the controller\n");
1868 b43_controller_restart(dev, "PHY TX errors");
1869 }
1870 }
e4d6b795
MB		 1871
1872 if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK |
1873 B43_DMAIRQ_NONFATALMASK))) {
1874 if (merged_dma_reason & B43_DMAIRQ_FATALMASK) {
1875 b43err(dev->wl, "Fatal DMA error: "
1876 "0x%08X, 0x%08X, 0x%08X, "
1877 "0x%08X, 0x%08X, 0x%08X\n",
1878 dma_reason[0], dma_reason[1],
1879 dma_reason[2], dma_reason[3],
1880 dma_reason[4], dma_reason[5]);
1881 b43_controller_restart(dev, "DMA error");
1882 mmiowb();
1883 spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
1884 return;
1885 }
1886 if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) {
1887 b43err(dev->wl, "DMA error: "
1888 "0x%08X, 0x%08X, 0x%08X, "
1889 "0x%08X, 0x%08X, 0x%08X\n",
1890 dma_reason[0], dma_reason[1],
1891 dma_reason[2], dma_reason[3],
1892 dma_reason[4], dma_reason[5]);
1893 }
1894 }
1895
1896 if (unlikely(reason & B43_IRQ_UCODE_DEBUG))
1897 handle_irq_ucode_debug(dev);
1898 if (reason & B43_IRQ_TBTT_INDI)
1899 handle_irq_tbtt_indication(dev);
1900 if (reason & B43_IRQ_ATIM_END)
1901 handle_irq_atim_end(dev);
1902 if (reason & B43_IRQ_BEACON)
1903 handle_irq_beacon(dev);
1904 if (reason & B43_IRQ_PMQ)
1905 handle_irq_pmq(dev);
21954c36
MB		 1906 if (reason & B43_IRQ_TXFIFO_FLUSH_OK)
1907 ;/* TODO */
1908 if (reason & B43_IRQ_NOISESAMPLE_OK)
e4d6b795
MB		 1909 handle_irq_noise(dev);
1910
1911 /* Check the DMA reason registers for received data. */
5100d5ac
MB		 1912 if (dma_reason[0] & B43_DMAIRQ_RX_DONE) {
1913 if (b43_using_pio_transfers(dev))
1914 b43_pio_rx(dev->pio.rx_queue);
1915 else
1916 b43_dma_rx(dev->dma.rx_ring);
1917 }
e4d6b795
MB		 1918 B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE);
1919 B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE);
b27faf8e 1920 B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE);
e4d6b795
MB		 1921 B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE);
1922 B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE);
1923
21954c36 1924 if (reason & B43_IRQ_TX_OK)
e4d6b795 1925 handle_irq_transmit_status(dev);
e4d6b795 1926
e4d6b795
MB		 1927 b43_interrupt_enable(dev, dev->irq_savedstate);
1928 mmiowb();
1929 spin_unlock_irqrestore(&dev->wl->irq_lock, flags);
1930}
1931
e4d6b795
MB		 1932static void b43_interrupt_ack(struct b43_wldev *dev, u32 reason)
1933{
e4d6b795
MB		 1934 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason);
1935
1936 b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]);
1937 b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]);
1938 b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]);
1939 b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]);
1940 b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]);
1941 b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]);
1942}
1943
1944/* Interrupt handler top-half */
1945static irqreturn_t b43_interrupt_handler(int irq, void *dev_id)
1946{
1947 irqreturn_t ret = IRQ_NONE;
1948 struct b43_wldev *dev = dev_id;
1949 u32 reason;
1950
1951 if (!dev)
1952 return IRQ_NONE;
1953
1954 spin_lock(&dev->wl->irq_lock);
1955
1956 if (b43_status(dev) < B43_STAT_STARTED)
1957 goto out;
1958 reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
1959 if (reason == 0xffffffff) /* shared IRQ */
1960 goto out;
1961 ret = IRQ_HANDLED;
1962 reason &= b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
1963 if (!reason)
1964 goto out;
1965
1966 dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON)
1967 & 0x0001DC00;
1968 dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON)
1969 & 0x0000DC00;
1970 dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON)
1971 & 0x0000DC00;
1972 dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON)
1973 & 0x0001DC00;
1974 dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON)
1975 & 0x0000DC00;
1976 dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON)
1977 & 0x0000DC00;
1978
1979 b43_interrupt_ack(dev, reason);
1980 /* disable all IRQs. They are enabled again in the bottom half. */
1981 dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL);
1982 /* save the reason code and call our bottom half. */
1983 dev->irq_reason = reason;
1984 tasklet_schedule(&dev->isr_tasklet);
1985 out:
1986 mmiowb();
1987 spin_unlock(&dev->wl->irq_lock);
1988
1989 return ret;
1990}
1991
61cb5dd6
MB		 1992static void do_release_fw(struct b43_firmware_file *fw)
1993{
1994 release_firmware(fw->data);
1995 fw->data = NULL;
1996 fw->filename = NULL;
1997}
1998
e4d6b795
MB		 1999static void b43_release_firmware(struct b43_wldev *dev)
2000{
61cb5dd6
MB		 2001 do_release_fw(&dev->fw.ucode);
2002 do_release_fw(&dev->fw.pcm);
2003 do_release_fw(&dev->fw.initvals);
2004 do_release_fw(&dev->fw.initvals_band);
e4d6b795
MB		 2005}
2006
eb189d8b 2007static void b43_print_fw_helptext(struct b43_wl *wl, bool error)
e4d6b795 2008{
eb189d8b
MB		 2009 const char *text;
2010
2011 text = "You must go to "
354807e0 2012 "http://linuxwireless.org/en/users/Drivers/b43#devicefirmware "
eb189d8b
MB		 2013 "and download the latest firmware (version 4).\n";
2014 if (error)
2015 b43err(wl, text);
2016 else
2017 b43warn(wl, text);
e4d6b795
MB		 2018}
2019
2020static int do_request_fw(struct b43_wldev *dev,
2021 const char *name,
68217832
MB		 2022 struct b43_firmware_file *fw,
2023 bool silent)
e4d6b795 2024{
1a09404a 2025 char path[sizeof(modparam_fwpostfix) + 32];
61cb5dd6 2026 const struct firmware *blob;
e4d6b795
MB		 2027 struct b43_fw_header *hdr;
2028 u32 size;
2029 int err;
2030
61cb5dd6
MB		 2031 if (!name) {
2032 /* Don't fetch anything. Free possibly cached firmware. */
2033 do_release_fw(fw);
e4d6b795 2034 return 0;
61cb5dd6
MB		 2035 }
2036 if (fw->filename) {
2037 if (strcmp(fw->filename, name) == 0)
2038 return 0; /* Already have this fw. */
2039 /* Free the cached firmware first. */
2040 do_release_fw(fw);
2041 }
e4d6b795
MB		 2042
2043 snprintf(path, ARRAY_SIZE(path),
2044 "b43%s/%s.fw",
2045 modparam_fwpostfix, name);
61cb5dd6 2046 err = request_firmware(&blob, path, dev->dev->dev);
68217832
MB		 2047 if (err == -ENOENT) {
2048 if (!silent) {
2049 b43err(dev->wl, "Firmware file \"%s\" not found\n",
2050 path);
2051 }
2052 return err;
2053 } else if (err) {
2054 b43err(dev->wl, "Firmware file \"%s\" request failed (err=%d)\n",
2055 path, err);
e4d6b795
MB		 2056 return err;
2057 }
61cb5dd6 2058 if (blob->size < sizeof(struct b43_fw_header))
e4d6b795 2059 goto err_format;
61cb5dd6 2060 hdr = (struct b43_fw_header *)(blob->data);
e4d6b795
MB		 2061 switch (hdr->type) {
2062 case B43_FW_TYPE_UCODE:
2063 case B43_FW_TYPE_PCM:
2064 size = be32_to_cpu(hdr->size);
61cb5dd6 2065 if (size != blob->size - sizeof(struct b43_fw_header))
e4d6b795
MB		 2066 goto err_format;
2067 /* fallthrough */
2068 case B43_FW_TYPE_IV:
2069 if (hdr->ver != 1)
2070 goto err_format;
2071 break;
2072 default:
2073 goto err_format;
2074 }
2075
61cb5dd6
MB		 2076 fw->data = blob;
2077 fw->filename = name;
2078
2079 return 0;
e4d6b795
MB		 2080
2081err_format:
2082 b43err(dev->wl, "Firmware file \"%s\" format error.\n", path);
61cb5dd6
MB		 2083 release_firmware(blob);
2084
e4d6b795
MB		 2085 return -EPROTO;
2086}
2087
2088static int b43_request_firmware(struct b43_wldev *dev)
2089{
2090 struct b43_firmware *fw = &dev->fw;
2091 const u8 rev = dev->dev->id.revision;
2092 const char *filename;
2093 u32 tmshigh;
2094 int err;
2095
61cb5dd6 2096 /* Get microcode */
e4d6b795 2097 tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);
61cb5dd6
MB		 2098 if ((rev >= 5) && (rev <= 10))
2099 filename = "ucode5";
2100 else if ((rev >= 11) && (rev <= 12))
2101 filename = "ucode11";
2102 else if (rev >= 13)
2103 filename = "ucode13";
2104 else
2105 goto err_no_ucode;
68217832 2106 err = do_request_fw(dev, filename, &fw->ucode, 0);
61cb5dd6
MB		 2107 if (err)
2108 goto err_load;
2109
2110 /* Get PCM code */
2111 if ((rev >= 5) && (rev <= 10))
2112 filename = "pcm5";
2113 else if (rev >= 11)
2114 filename = NULL;
2115 else
2116 goto err_no_pcm;
68217832
MB		 2117 fw->pcm_request_failed = 0;
2118 err = do_request_fw(dev, filename, &fw->pcm, 1);
2119 if (err == -ENOENT) {
2120 /* We did not find a PCM file? Not fatal, but
2121 * core rev <= 10 must do without hwcrypto then. */
2122 fw->pcm_request_failed = 1;
2123 } else if (err)
61cb5dd6
MB		 2124 goto err_load;
2125
2126 /* Get initvals */
2127 switch (dev->phy.type) {
2128 case B43_PHYTYPE_A:
2129 if ((rev >= 5) && (rev <= 10)) {
2130 if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
2131 filename = "a0g1initvals5";
2132 else
2133 filename = "a0g0initvals5";
2134 } else
2135 goto err_no_initvals;
2136 break;
2137 case B43_PHYTYPE_G:
e4d6b795 2138 if ((rev >= 5) && (rev <= 10))
61cb5dd6 2139 filename = "b0g0initvals5";
e4d6b795 2140 else if (rev >= 13)
e9304882 2141 filename = "b0g0initvals13";
e4d6b795 2142 else
61cb5dd6
MB		 2143 goto err_no_initvals;
2144 break;
2145 case B43_PHYTYPE_N:
2146 if ((rev >= 11) && (rev <= 12))
2147 filename = "n0initvals11";
2148 else
2149 goto err_no_initvals;
2150 break;
2151 default:
2152 goto err_no_initvals;
e4d6b795 2153 }
68217832 2154 err = do_request_fw(dev, filename, &fw->initvals, 0);
61cb5dd6
MB		 2155 if (err)
2156 goto err_load;
2157
2158 /* Get bandswitch initvals */
2159 switch (dev->phy.type) {
2160 case B43_PHYTYPE_A:
2161 if ((rev >= 5) && (rev <= 10)) {
2162 if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
2163 filename = "a0g1bsinitvals5";
2164 else
2165 filename = "a0g0bsinitvals5";
2166 } else if (rev >= 11)
2167 filename = NULL;
2168 else
2169 goto err_no_initvals;
2170 break;
2171 case B43_PHYTYPE_G:
e4d6b795 2172 if ((rev >= 5) && (rev <= 10))
61cb5dd6 2173 filename = "b0g0bsinitvals5";
e4d6b795
MB		 2174 else if (rev >= 11)
2175 filename = NULL;
2176 else
e4d6b795 2177 goto err_no_initvals;
61cb5dd6
MB		 2178 break;
2179 case B43_PHYTYPE_N:
2180 if ((rev >= 11) && (rev <= 12))
2181 filename = "n0bsinitvals11";
2182 else
e4d6b795 2183 goto err_no_initvals;
61cb5dd6
MB		 2184 break;
2185 default:
2186 goto err_no_initvals;
e4d6b795 2187 }
68217832 2188 err = do_request_fw(dev, filename, &fw->initvals_band, 0);
61cb5dd6
MB		 2189 if (err)
2190 goto err_load;
e4d6b795
MB		 2191
2192 return 0;
2193
2194err_load:
eb189d8b 2195 b43_print_fw_helptext(dev->wl, 1);
e4d6b795
MB		 2196 goto error;
2197
2198err_no_ucode:
2199 err = -ENODEV;
2200 b43err(dev->wl, "No microcode available for core rev %u\n", rev);
2201 goto error;
2202
2203err_no_pcm:
2204 err = -ENODEV;
2205 b43err(dev->wl, "No PCM available for core rev %u\n", rev);
2206 goto error;
2207
2208err_no_initvals:
2209 err = -ENODEV;
2210 b43err(dev->wl, "No Initial Values firmware file for PHY %u, "
2211 "core rev %u\n", dev->phy.type, rev);
2212 goto error;
2213
2214error:
2215 b43_release_firmware(dev);
2216 return err;
2217}
2218
2219static int b43_upload_microcode(struct b43_wldev *dev)
2220{
2221 const size_t hdr_len = sizeof(struct b43_fw_header);
2222 const __be32 *data;
2223 unsigned int i, len;
2224 u16 fwrev, fwpatch, fwdate, fwtime;
1f7d87b0 2225 u32 tmp, macctl;
e4d6b795
MB		 2226 int err = 0;
2227
1f7d87b0
MB		 2228 /* Jump the microcode PSM to offset 0 */
2229 macctl = b43_read32(dev, B43_MMIO_MACCTL);
2230 B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN);
2231 macctl |= B43_MACCTL_PSM_JMP0;
2232 b43_write32(dev, B43_MMIO_MACCTL, macctl);
2233 /* Zero out all microcode PSM registers and shared memory. */
2234 for (i = 0; i < 64; i++)
2235 b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0);
2236 for (i = 0; i < 4096; i += 2)
2237 b43_shm_write16(dev, B43_SHM_SHARED, i, 0);
2238
e4d6b795 2239 /* Upload Microcode. */
61cb5dd6
MB		 2240 data = (__be32 *) (dev->fw.ucode.data->data + hdr_len);
2241 len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32);
e4d6b795
MB		 2242 b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000);
2243 for (i = 0; i < len; i++) {
2244 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
2245 udelay(10);
2246 }
2247
61cb5dd6 2248 if (dev->fw.pcm.data) {
e4d6b795 2249 /* Upload PCM data. */
61cb5dd6
MB		 2250 data = (__be32 *) (dev->fw.pcm.data->data + hdr_len);
2251 len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32);
e4d6b795
MB		 2252 b43_shm_control_word(dev, B43_SHM_HW, 0x01EA);
2253 b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000);
2254 /* No need for autoinc bit in SHM_HW */
2255 b43_shm_control_word(dev, B43_SHM_HW, 0x01EB);
2256 for (i = 0; i < len; i++) {
2257 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
2258 udelay(10);
2259 }
2260 }
2261
2262 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL);
1f7d87b0
MB		 2263
2264 /* Start the microcode PSM */
2265 macctl = b43_read32(dev, B43_MMIO_MACCTL);
2266 macctl &= ~B43_MACCTL_PSM_JMP0;
2267 macctl |= B43_MACCTL_PSM_RUN;
2268 b43_write32(dev, B43_MMIO_MACCTL, macctl);
e4d6b795
MB		 2269
2270 /* Wait for the microcode to load and respond */
2271 i = 0;
2272 while (1) {
2273 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2274 if (tmp == B43_IRQ_MAC_SUSPENDED)
2275 break;
2276 i++;
1f7d87b0 2277 if (i >= 20) {
e4d6b795 2278 b43err(dev->wl, "Microcode not responding\n");
eb189d8b 2279 b43_print_fw_helptext(dev->wl, 1);
e4d6b795 2280 err = -ENODEV;
1f7d87b0
MB		 2281 goto error;
2282 }
2283 msleep_interruptible(50);
2284 if (signal_pending(current)) {
2285 err = -EINTR;
2286 goto error;
e4d6b795 2287 }
e4d6b795
MB		 2288 }
2289 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */
2290
2291 /* Get and check the revisions. */
2292 fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV);
2293 fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH);
2294 fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE);
2295 fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME);
2296
2297 if (fwrev <= 0x128) {
2298 b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from "
2299 "binary drivers older than version 4.x is unsupported. "
2300 "You must upgrade your firmware files.\n");
eb189d8b 2301 b43_print_fw_helptext(dev->wl, 1);
e4d6b795 2302 err = -EOPNOTSUPP;
1f7d87b0 2303 goto error;
e4d6b795 2304 }
e4d6b795
MB		 2305 dev->fw.rev = fwrev;
2306 dev->fw.patch = fwpatch;
e48b0eeb
MB		 2307 dev->fw.opensource = (fwdate == 0xFFFF);
2308
2309 if (dev->fw.opensource) {
2310 /* Patchlevel info is encoded in the "time" field. */
2311 dev->fw.patch = fwtime;
68217832
MB		 2312 b43info(dev->wl, "Loading OpenSource firmware version %u.%u%s\n",
2313 dev->fw.rev, dev->fw.patch,
2314 dev->fw.pcm_request_failed ? " (Hardware crypto not supported)" : "");
e48b0eeb
MB		 2315 } else {
2316 b43info(dev->wl, "Loading firmware version %u.%u "
2317 "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n",
2318 fwrev, fwpatch,
2319 (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
2320 (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F);
68217832
MB		 2321 if (dev->fw.pcm_request_failed) {
2322 b43warn(dev->wl, "No \"pcm5.fw\" firmware file found. "
2323 "Hardware accelerated cryptography is disabled.\n");
2324 b43_print_fw_helptext(dev->wl, 0);
2325 }
e48b0eeb 2326 }
e4d6b795 2327
eb189d8b
MB		 2328 if (b43_is_old_txhdr_format(dev)) {
2329 b43warn(dev->wl, "You are using an old firmware image. "
2330 "Support for old firmware will be removed in July 2008.\n");
2331 b43_print_fw_helptext(dev->wl, 0);
2332 }
2333
1f7d87b0
MB		 2334 return 0;
2335
2336error:
2337 macctl = b43_read32(dev, B43_MMIO_MACCTL);
2338 macctl &= ~B43_MACCTL_PSM_RUN;
2339 macctl |= B43_MACCTL_PSM_JMP0;
2340 b43_write32(dev, B43_MMIO_MACCTL, macctl);
2341
e4d6b795
MB		 2342 return err;
2343}
2344
2345static int b43_write_initvals(struct b43_wldev *dev,
2346 const struct b43_iv *ivals,
2347 size_t count,
2348 size_t array_size)
2349{
2350 const struct b43_iv *iv;
2351 u16 offset;
2352 size_t i;
2353 bool bit32;
2354
2355 BUILD_BUG_ON(sizeof(struct b43_iv) != 6);
2356 iv = ivals;
2357 for (i = 0; i < count; i++) {
2358 if (array_size < sizeof(iv->offset_size))
2359 goto err_format;
2360 array_size -= sizeof(iv->offset_size);
2361 offset = be16_to_cpu(iv->offset_size);
2362 bit32 = !!(offset & B43_IV_32BIT);
2363 offset &= B43_IV_OFFSET_MASK;
2364 if (offset >= 0x1000)
2365 goto err_format;
2366 if (bit32) {
2367 u32 value;
2368
2369 if (array_size < sizeof(iv->data.d32))
2370 goto err_format;
2371 array_size -= sizeof(iv->data.d32);
2372
533dd1b0 2373 value = get_unaligned_be32(&iv->data.d32);
e4d6b795
MB		 2374 b43_write32(dev, offset, value);
2375
2376 iv = (const struct b43_iv *)((const uint8_t *)iv +
2377 sizeof(__be16) +
2378 sizeof(__be32));
2379 } else {
2380 u16 value;
2381
2382 if (array_size < sizeof(iv->data.d16))
2383 goto err_format;
2384 array_size -= sizeof(iv->data.d16);
2385
2386 value = be16_to_cpu(iv->data.d16);
2387 b43_write16(dev, offset, value);
2388
2389 iv = (const struct b43_iv *)((const uint8_t *)iv +
2390 sizeof(__be16) +
2391 sizeof(__be16));
2392 }
2393 }
2394 if (array_size)
2395 goto err_format;
2396
2397 return 0;
2398
2399err_format:
2400 b43err(dev->wl, "Initial Values Firmware file-format error.\n");
eb189d8b 2401 b43_print_fw_helptext(dev->wl, 1);
e4d6b795
MB		 2402
2403 return -EPROTO;
2404}
2405
2406static int b43_upload_initvals(struct b43_wldev *dev)
2407{
2408 const size_t hdr_len = sizeof(struct b43_fw_header);
2409 const struct b43_fw_header *hdr;
2410 struct b43_firmware *fw = &dev->fw;
2411 const struct b43_iv *ivals;
2412 size_t count;
2413 int err;
2414
61cb5dd6
MB		 2415 hdr = (const struct b43_fw_header *)(fw->initvals.data->data);
2416 ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len);
e4d6b795
MB		 2417 count = be32_to_cpu(hdr->size);
2418 err = b43_write_initvals(dev, ivals, count,
61cb5dd6 2419 fw->initvals.data->size - hdr_len);
e4d6b795
MB		 2420 if (err)
2421 goto out;
61cb5dd6
MB		 2422 if (fw->initvals_band.data) {
2423 hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data);
2424 ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len);
e4d6b795
MB		 2425 count = be32_to_cpu(hdr->size);
2426 err = b43_write_initvals(dev, ivals, count,
61cb5dd6 2427 fw->initvals_band.data->size - hdr_len);
e4d6b795
MB		 2428 if (err)
2429 goto out;
2430 }
2431out:
2432
2433 return err;
2434}
2435
2436/* Initialize the GPIOs
2437 * http://bcm-specs.sipsolutions.net/GPIO
2438 */
2439static int b43_gpio_init(struct b43_wldev *dev)
2440{
2441 struct ssb_bus *bus = dev->dev->bus;
2442 struct ssb_device *gpiodev, *pcidev = NULL;
2443 u32 mask, set;
2444
2445 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2446 & ~B43_MACCTL_GPOUTSMSK);
2447
e4d6b795
MB		 2448 b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK)
2449 | 0x000F);
2450
2451 mask = 0x0000001F;
2452 set = 0x0000000F;
2453 if (dev->dev->bus->chip_id == 0x4301) {
2454 mask |= 0x0060;
2455 set |= 0x0060;
2456 }
2457 if (0 /* FIXME: conditional unknown */ ) {
2458 b43_write16(dev, B43_MMIO_GPIO_MASK,
2459 b43_read16(dev, B43_MMIO_GPIO_MASK)
2460 | 0x0100);
2461 mask |= 0x0180;
2462 set |= 0x0180;
2463 }
95de2841 2464 if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL) {
e4d6b795
MB		 2465 b43_write16(dev, B43_MMIO_GPIO_MASK,
2466 b43_read16(dev, B43_MMIO_GPIO_MASK)
2467 | 0x0200);
2468 mask |= 0x0200;
2469 set |= 0x0200;
2470 }
2471 if (dev->dev->id.revision >= 2)
2472 mask |= 0x0010; /* FIXME: This is redundant. */
2473
2474#ifdef CONFIG_SSB_DRIVER_PCICORE
2475 pcidev = bus->pcicore.dev;
2476#endif
2477 gpiodev = bus->chipco.dev ? : pcidev;
2478 if (!gpiodev)
2479 return 0;
2480 ssb_write32(gpiodev, B43_GPIO_CONTROL,
2481 (ssb_read32(gpiodev, B43_GPIO_CONTROL)
2482 & mask) | set);
2483
2484 return 0;
2485}
2486
2487/* Turn off all GPIO stuff. Call this on module unload, for example. */
2488static void b43_gpio_cleanup(struct b43_wldev *dev)
2489{
2490 struct ssb_bus *bus = dev->dev->bus;
2491 struct ssb_device *gpiodev, *pcidev = NULL;
2492
2493#ifdef CONFIG_SSB_DRIVER_PCICORE
2494 pcidev = bus->pcicore.dev;
2495#endif
2496 gpiodev = bus->chipco.dev ? : pcidev;
2497 if (!gpiodev)
2498 return;
2499 ssb_write32(gpiodev, B43_GPIO_CONTROL, 0);
2500}
2501
2502/* http://bcm-specs.sipsolutions.net/EnableMac */
f5eda47f 2503void b43_mac_enable(struct b43_wldev *dev)
e4d6b795 2504{
923fd703
MB		 2505 if (b43_debug(dev, B43_DBG_FIRMWARE)) {
2506 u16 fwstate;
2507
2508 fwstate = b43_shm_read16(dev, B43_SHM_SHARED,
2509 B43_SHM_SH_UCODESTAT);
2510 if ((fwstate != B43_SHM_SH_UCODESTAT_SUSP) &&
2511 (fwstate != B43_SHM_SH_UCODESTAT_SLEEP)) {
2512 b43err(dev->wl, "b43_mac_enable(): The firmware "
2513 "should be suspended, but current state is %u\n",
2514 fwstate);
2515 }
2516 }
2517
e4d6b795
MB		 2518 dev->mac_suspended--;
2519 B43_WARN_ON(dev->mac_suspended < 0);
2520 if (dev->mac_suspended == 0) {
2521 b43_write32(dev, B43_MMIO_MACCTL,
2522 b43_read32(dev, B43_MMIO_MACCTL)
2523 | B43_MACCTL_ENABLED);
2524 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON,
2525 B43_IRQ_MAC_SUSPENDED);
2526 /* Commit writes */
2527 b43_read32(dev, B43_MMIO_MACCTL);
2528 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2529 b43_power_saving_ctl_bits(dev, 0);
2530 }
2531}
2532
2533/* http://bcm-specs.sipsolutions.net/SuspendMAC */
f5eda47f 2534void b43_mac_suspend(struct b43_wldev *dev)
e4d6b795
MB		 2535{
2536 int i;
2537 u32 tmp;
2538
05b64b36 2539 might_sleep();
e4d6b795 2540 B43_WARN_ON(dev->mac_suspended < 0);
05b64b36 2541
e4d6b795
MB		 2542 if (dev->mac_suspended == 0) {
2543 b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
2544 b43_write32(dev, B43_MMIO_MACCTL,
2545 b43_read32(dev, B43_MMIO_MACCTL)
2546 & ~B43_MACCTL_ENABLED);
2547 /* force pci to flush the write */
2548 b43_read32(dev, B43_MMIO_MACCTL);
ba380013
MB		 2549 for (i = 35; i; i--) {
2550 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2551 if (tmp & B43_IRQ_MAC_SUSPENDED)
2552 goto out;
2553 udelay(10);
2554 }
2555 /* Hm, it seems this will take some time. Use msleep(). */
05b64b36 2556 for (i = 40; i; i--) {
e4d6b795
MB		 2557 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2558 if (tmp & B43_IRQ_MAC_SUSPENDED)
2559 goto out;
05b64b36 2560 msleep(1);
e4d6b795
MB		 2561 }
2562 b43err(dev->wl, "MAC suspend failed\n");
2563 }
05b64b36 2564out:
e4d6b795
MB		 2565 dev->mac_suspended++;
2566}
2567
2568static void b43_adjust_opmode(struct b43_wldev *dev)
2569{
2570 struct b43_wl *wl = dev->wl;
2571 u32 ctl;
2572 u16 cfp_pretbtt;
2573
2574 ctl = b43_read32(dev, B43_MMIO_MACCTL);
2575 /* Reset status to STA infrastructure mode. */
2576 ctl &= ~B43_MACCTL_AP;
2577 ctl &= ~B43_MACCTL_KEEP_CTL;
2578 ctl &= ~B43_MACCTL_KEEP_BADPLCP;
2579 ctl &= ~B43_MACCTL_KEEP_BAD;
2580 ctl &= ~B43_MACCTL_PROMISC;
4150c572 2581 ctl &= ~B43_MACCTL_BEACPROMISC;
e4d6b795
MB		 2582 ctl |= B43_MACCTL_INFRA;
2583
04dea136
JB		 2584 if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP) ||
2585 b43_is_mode(wl, IEEE80211_IF_TYPE_MESH_POINT))
4150c572
JB		 2586 ctl |= B43_MACCTL_AP;
2587 else if (b43_is_mode(wl, IEEE80211_IF_TYPE_IBSS))
2588 ctl &= ~B43_MACCTL_INFRA;
2589
2590 if (wl->filter_flags & FIF_CONTROL)
e4d6b795 2591 ctl |= B43_MACCTL_KEEP_CTL;
4150c572
JB		 2592 if (wl->filter_flags & FIF_FCSFAIL)
2593 ctl |= B43_MACCTL_KEEP_BAD;
2594 if (wl->filter_flags & FIF_PLCPFAIL)
2595 ctl |= B43_MACCTL_KEEP_BADPLCP;
2596 if (wl->filter_flags & FIF_PROMISC_IN_BSS)
e4d6b795 2597 ctl |= B43_MACCTL_PROMISC;
4150c572
JB		 2598 if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
2599 ctl |= B43_MACCTL_BEACPROMISC;
2600
e4d6b795
MB		 2601 /* Workaround: On old hardware the HW-MAC-address-filter
2602 * doesn't work properly, so always run promisc in filter
2603 * it in software. */
2604 if (dev->dev->id.revision <= 4)
2605 ctl |= B43_MACCTL_PROMISC;
2606
2607 b43_write32(dev, B43_MMIO_MACCTL, ctl);
2608
2609 cfp_pretbtt = 2;
2610 if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) {
2611 if (dev->dev->bus->chip_id == 0x4306 &&
2612 dev->dev->bus->chip_rev == 3)
2613 cfp_pretbtt = 100;
2614 else
2615 cfp_pretbtt = 50;
2616 }
2617 b43_write16(dev, 0x612, cfp_pretbtt);
2618}
2619
2620static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm)
2621{
2622 u16 offset;
2623
2624 if (is_ofdm) {
2625 offset = 0x480;
2626 offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
2627 } else {
2628 offset = 0x4C0;
2629 offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
2630 }
2631 b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20,
2632 b43_shm_read16(dev, B43_SHM_SHARED, offset));
2633}
2634
2635static void b43_rate_memory_init(struct b43_wldev *dev)
2636{
2637 switch (dev->phy.type) {
2638 case B43_PHYTYPE_A:
2639 case B43_PHYTYPE_G:
53a6e234 2640 case B43_PHYTYPE_N:
e4d6b795
MB		 2641 b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1);
2642 b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1);
2643 b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1);
2644 b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1);
2645 b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1);
2646 b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1);
2647 b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1);
2648 if (dev->phy.type == B43_PHYTYPE_A)
2649 break;
2650 /* fallthrough */
2651 case B43_PHYTYPE_B:
2652 b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0);
2653 b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0);
2654 b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0);
2655 b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0);
2656 break;
2657 default:
2658 B43_WARN_ON(1);
2659 }
2660}
2661
5042c507
MB		 2662/* Set the default values for the PHY TX Control Words. */
2663static void b43_set_phytxctl_defaults(struct b43_wldev *dev)
2664{
2665 u16 ctl = 0;
2666
2667 ctl |= B43_TXH_PHY_ENC_CCK;
2668 ctl |= B43_TXH_PHY_ANT01AUTO;
2669 ctl |= B43_TXH_PHY_TXPWR;
2670
2671 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl);
2672 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, ctl);
2673 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, ctl);
2674}
2675
e4d6b795
MB		 2676/* Set the TX-Antenna for management frames sent by firmware. */
2677static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna)
2678{
5042c507 2679 u16 ant;
e4d6b795
MB		 2680 u16 tmp;
2681
5042c507 2682 ant = b43_antenna_to_phyctl(antenna);
e4d6b795 2683
e4d6b795
MB		 2684 /* For ACK/CTS */
2685 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL);
eb189d8b 2686 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
e4d6b795
MB		 2687 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp);
2688 /* For Probe Resposes */
2689 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL);
eb189d8b 2690 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
e4d6b795
MB		 2691 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp);
2692}
2693
2694/* This is the opposite of b43_chip_init() */
2695static void b43_chip_exit(struct b43_wldev *dev)
2696{
e4d6b795
MB		 2697 b43_gpio_cleanup(dev);
2698 /* firmware is released later */
2699}
2700
2701/* Initialize the chip
2702 * http://bcm-specs.sipsolutions.net/ChipInit
2703 */
2704static int b43_chip_init(struct b43_wldev *dev)
2705{
2706 struct b43_phy *phy = &dev->phy;
ef1a628d 2707 int err;
1f7d87b0 2708 u32 value32, macctl;
e4d6b795
MB		 2709 u16 value16;
2710
1f7d87b0
MB		 2711 /* Initialize the MAC control */
2712 macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED;
2713 if (dev->phy.gmode)
2714 macctl |= B43_MACCTL_GMODE;
2715 macctl |= B43_MACCTL_INFRA;
2716 b43_write32(dev, B43_MMIO_MACCTL, macctl);
e4d6b795
MB		 2717
2718 err = b43_request_firmware(dev);
2719 if (err)
2720 goto out;
2721 err = b43_upload_microcode(dev);
2722 if (err)
2723 goto out; /* firmware is released later */
2724
2725 err = b43_gpio_init(dev);
2726 if (err)
2727 goto out; /* firmware is released later */
21954c36 2728
e4d6b795
MB		 2729 err = b43_upload_initvals(dev);
2730 if (err)
1a8d1227 2731 goto err_gpio_clean;
e4d6b795
MB		 2732
2733 b43_write16(dev, 0x03E6, 0x0000);
2734 err = b43_phy_init(dev);
2735 if (err)
ef1a628d 2736 goto err_gpio_clean;
e4d6b795 2737
ef1a628d
MB		 2738 /* Disable Interference Mitigation. */
2739 if (phy->ops->interf_mitigation)
2740 phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE);
e4d6b795 2741
ef1a628d
MB		 2742 /* Select the antennae */
2743 if (phy->ops->set_rx_antenna)
2744 phy->ops->set_rx_antenna(dev, B43_ANTENNA_DEFAULT);
e4d6b795
MB		 2745 b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT);
2746
2747 if (phy->type == B43_PHYTYPE_B) {
2748 value16 = b43_read16(dev, 0x005E);
2749 value16 |= 0x0004;
2750 b43_write16(dev, 0x005E, value16);
2751 }
2752 b43_write32(dev, 0x0100, 0x01000000);
2753 if (dev->dev->id.revision < 5)
2754 b43_write32(dev, 0x010C, 0x01000000);
2755
2756 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2757 & ~B43_MACCTL_INFRA);
2758 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2759 | B43_MACCTL_INFRA);
e4d6b795 2760
e4d6b795
MB		 2761 /* Probe Response Timeout value */
2762 /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
2763 b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000);
2764
2765 /* Initially set the wireless operation mode. */
2766 b43_adjust_opmode(dev);
2767
2768 if (dev->dev->id.revision < 3) {
2769 b43_write16(dev, 0x060E, 0x0000);
2770 b43_write16(dev, 0x0610, 0x8000);
2771 b43_write16(dev, 0x0604, 0x0000);
2772 b43_write16(dev, 0x0606, 0x0200);
2773 } else {
2774 b43_write32(dev, 0x0188, 0x80000000);
2775 b43_write32(dev, 0x018C, 0x02000000);
2776 }
2777 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000);
2778 b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
2779 b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
2780 b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
2781 b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
2782 b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
2783 b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
2784
2785 value32 = ssb_read32(dev->dev, SSB_TMSLOW);
2786 value32 |= 0x00100000;
2787 ssb_write32(dev->dev, SSB_TMSLOW, value32);
2788
2789 b43_write16(dev, B43_MMIO_POWERUP_DELAY,
2790 dev->dev->bus->chipco.fast_pwrup_delay);
2791
2792 err = 0;
2793 b43dbg(dev->wl, "Chip initialized\n");
21954c36 2794out:
e4d6b795
MB		 2795 return err;
2796
1a8d1227 2797err_gpio_clean:
e4d6b795 2798 b43_gpio_cleanup(dev);
21954c36 2799 return err;
e4d6b795
MB		 2800}
2801
e4d6b795
MB		 2802static void b43_periodic_every60sec(struct b43_wldev *dev)
2803{
ef1a628d 2804 const struct b43_phy_operations *ops = dev->phy.ops;
e4d6b795 2805
ef1a628d
MB		 2806 if (ops->pwork_60sec)
2807 ops->pwork_60sec(dev);
e4d6b795
MB		 2808}
2809
2810static void b43_periodic_every30sec(struct b43_wldev *dev)
2811{
2812 /* Update device statistics. */
2813 b43_calculate_link_quality(dev);
2814}
2815
2816static void b43_periodic_every15sec(struct b43_wldev *dev)
2817{
2818 struct b43_phy *phy = &dev->phy;
9b839a74
MB		 2819 u16 wdr;
2820
2821 if (dev->fw.opensource) {
2822 /* Check if the firmware is still alive.
2823 * It will reset the watchdog counter to 0 in its idle loop. */
2824 wdr = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_WATCHDOG_REG);
2825 if (unlikely(wdr)) {
2826 b43err(dev->wl, "Firmware watchdog: The firmware died!\n");
2827 b43_controller_restart(dev, "Firmware watchdog");
2828 return;
2829 } else {
2830 b43_shm_write16(dev, B43_SHM_SCRATCH,
2831 B43_WATCHDOG_REG, 1);
2832 }
2833 }
e4d6b795 2834
ef1a628d
MB		 2835 if (phy->ops->pwork_15sec)
2836 phy->ops->pwork_15sec(dev);
2837
2838 phy->ops->xmitpower(dev);
00e0b8cb
SB		 2839
2840 atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
2841 wmb();
e4d6b795
MB		 2842}
2843
e4d6b795
MB		 2844static void do_periodic_work(struct b43_wldev *dev)
2845{
2846 unsigned int state;
2847
2848 state = dev->periodic_state;
42bb4cd5 2849 if (state % 4 == 0)
e4d6b795 2850 b43_periodic_every60sec(dev);
42bb4cd5 2851 if (state % 2 == 0)
e4d6b795 2852 b43_periodic_every30sec(dev);
42bb4cd5 2853 b43_periodic_every15sec(dev);
e4d6b795
MB		 2854}
2855
05b64b36
MB		 2856/* Periodic work locking policy:
2857 * The whole periodic work handler is protected by
2858 * wl->mutex. If another lock is needed somewhere in the
2859 * pwork callchain, it's aquired in-place, where it's needed.
e4d6b795 2860 */
e4d6b795
MB		 2861static void b43_periodic_work_handler(struct work_struct *work)
2862{
05b64b36
MB		 2863 struct b43_wldev *dev = container_of(work, struct b43_wldev,
2864 periodic_work.work);
2865 struct b43_wl *wl = dev->wl;
2866 unsigned long delay;
e4d6b795 2867
05b64b36 2868 mutex_lock(&wl->mutex);
e4d6b795
MB		 2869
2870 if (unlikely(b43_status(dev) != B43_STAT_STARTED))
2871 goto out;
2872 if (b43_debug(dev, B43_DBG_PWORK_STOP))
2873 goto out_requeue;
2874
05b64b36 2875 do_periodic_work(dev);
e4d6b795 2876
e4d6b795 2877 dev->periodic_state++;
42bb4cd5 2878out_requeue:
e4d6b795
MB		 2879 if (b43_debug(dev, B43_DBG_PWORK_FAST))
2880 delay = msecs_to_jiffies(50);
2881 else
82cd682d 2882 delay = round_jiffies_relative(HZ * 15);
05b64b36 2883 queue_delayed_work(wl->hw->workqueue, &dev->periodic_work, delay);
42bb4cd5 2884out:
05b64b36 2885 mutex_unlock(&wl->mutex);
e4d6b795
MB		 2886}
2887
2888static void b43_periodic_tasks_setup(struct b43_wldev *dev)
2889{
2890 struct delayed_work *work = &dev->periodic_work;
2891
2892 dev->periodic_state = 0;
2893 INIT_DELAYED_WORK(work, b43_periodic_work_handler);
2894 queue_delayed_work(dev->wl->hw->workqueue, work, 0);
2895}
2896
f3dd3fcc 2897/* Check if communication with the device works correctly. */
e4d6b795
MB		 2898static int b43_validate_chipaccess(struct b43_wldev *dev)
2899{
f3dd3fcc 2900 u32 v, backup;
e4d6b795 2901
f3dd3fcc
MB		 2902 backup = b43_shm_read32(dev, B43_SHM_SHARED, 0);
2903
2904 /* Check for read/write and endianness problems. */
e4d6b795
MB		 2905 b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55);
2906 if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55)
2907 goto error;
f3dd3fcc
MB		 2908 b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA);
2909 if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA)
e4d6b795
MB		 2910 goto error;
2911
f3dd3fcc
MB		 2912 b43_shm_write32(dev, B43_SHM_SHARED, 0, backup);
2913
2914 if ((dev->dev->id.revision >= 3) && (dev->dev->id.revision <= 10)) {
2915 /* The 32bit register shadows the two 16bit registers
2916 * with update sideeffects. Validate this. */
2917 b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA);
2918 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB);
2919 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB)
2920 goto error;
2921 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC)
2922 goto error;
2923 }
2924 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0);
2925
2926 v = b43_read32(dev, B43_MMIO_MACCTL);
2927 v |= B43_MACCTL_GMODE;
2928 if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED))
e4d6b795
MB		 2929 goto error;
2930
2931 return 0;
f3dd3fcc 2932error:
e4d6b795
MB		 2933 b43err(dev->wl, "Failed to validate the chipaccess\n");
2934 return -ENODEV;
2935}
2936
2937static void b43_security_init(struct b43_wldev *dev)
2938{
2939 dev->max_nr_keys = (dev->dev->id.revision >= 5) ? 58 : 20;
2940 B43_WARN_ON(dev->max_nr_keys > ARRAY_SIZE(dev->key));
2941 dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP);
2942 /* KTP is a word address, but we address SHM bytewise.
2943 * So multiply by two.
2944 */
2945 dev->ktp *= 2;
2946 if (dev->dev->id.revision >= 5) {
2947 /* Number of RCMTA address slots */
2948 b43_write16(dev, B43_MMIO_RCMTA_COUNT, dev->max_nr_keys - 8);
2949 }
2950 b43_clear_keys(dev);
2951}
2952
2953static int b43_rng_read(struct hwrng *rng, u32 * data)
2954{
2955 struct b43_wl *wl = (struct b43_wl *)rng->priv;
2956 unsigned long flags;
2957
2958 /* Don't take wl->mutex here, as it could deadlock with
2959 * hwrng internal locking. It's not needed to take
2960 * wl->mutex here, anyway. */
2961
2962 spin_lock_irqsave(&wl->irq_lock, flags);
2963 *data = b43_read16(wl->current_dev, B43_MMIO_RNG);
2964 spin_unlock_irqrestore(&wl->irq_lock, flags);
2965
2966 return (sizeof(u16));
2967}
2968
b844eba2 2969static void b43_rng_exit(struct b43_wl *wl)
e4d6b795
MB		 2970{
2971 if (wl->rng_initialized)
b844eba2 2972 hwrng_unregister(&wl->rng);
e4d6b795
MB		 2973}
2974
2975static int b43_rng_init(struct b43_wl *wl)
2976{
2977 int err;
2978
2979 snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name),
2980 "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy));
2981 wl->rng.name = wl->rng_name;
2982 wl->rng.data_read = b43_rng_read;
2983 wl->rng.priv = (unsigned long)wl;
2984 wl->rng_initialized = 1;
2985 err = hwrng_register(&wl->rng);
2986 if (err) {
2987 wl->rng_initialized = 0;
2988 b43err(wl, "Failed to register the random "
2989 "number generator (%d)\n", err);
2990 }
2991
2992 return err;
2993}
2994
40faacc4 2995static int b43_op_tx(struct ieee80211_hw *hw,
e039fa4a 2996 struct sk_buff *skb)
e4d6b795
MB		 2997{
2998 struct b43_wl *wl = hw_to_b43_wl(hw);
2999 struct b43_wldev *dev = wl->current_dev;
21a75d77
MB		 3000 unsigned long flags;
3001 int err;
e4d6b795 3002
5100d5ac
MB		 3003 if (unlikely(skb->len < 2 + 2 + 6)) {
3004 /* Too short, this can't be a valid frame. */
c9e8eae0 3005 goto drop_packet;
5100d5ac
MB		 3006 }
3007 B43_WARN_ON(skb_shinfo(skb)->nr_frags);
e4d6b795 3008 if (unlikely(!dev))
c9e8eae0 3009 goto drop_packet;
21a75d77
MB		 3010
3011 /* Transmissions on seperate queues can run concurrently. */
3012 read_lock_irqsave(&wl->tx_lock, flags);
3013
3014 err = -ENODEV;
3015 if (likely(b43_status(dev) >= B43_STAT_STARTED)) {
3016 if (b43_using_pio_transfers(dev))
e039fa4a 3017 err = b43_pio_tx(dev, skb);
21a75d77 3018 else
e039fa4a 3019 err = b43_dma_tx(dev, skb);
21a75d77
MB		 3020 }
3021
3022 read_unlock_irqrestore(&wl->tx_lock, flags);
3023
e4d6b795 3024 if (unlikely(err))
c9e8eae0
MB		 3025 goto drop_packet;
3026 return NETDEV_TX_OK;
3027
3028drop_packet:
3029 /* We can not transmit this packet. Drop it. */
3030 dev_kfree_skb_any(skb);
e4d6b795
MB		 3031 return NETDEV_TX_OK;
3032}
3033
e6f5b934
MB		 3034/* Locking: wl->irq_lock */
3035static void b43_qos_params_upload(struct b43_wldev *dev,
3036 const struct ieee80211_tx_queue_params *p,
3037 u16 shm_offset)
3038{
3039 u16 params[B43_NR_QOSPARAMS];
0b57664c 3040 int bslots, tmp;
e6f5b934
MB		 3041 unsigned int i;
3042
0b57664c 3043 bslots = b43_read16(dev, B43_MMIO_RNG) & p->cw_min;
e6f5b934
MB		 3044
3045 memset(&params, 0, sizeof(params));
3046
3047 params[B43_QOSPARAM_TXOP] = p->txop * 32;
0b57664c
JB		 3048 params[B43_QOSPARAM_CWMIN] = p->cw_min;
3049 params[B43_QOSPARAM_CWMAX] = p->cw_max;
3050 params[B43_QOSPARAM_CWCUR] = p->cw_min;
3051 params[B43_QOSPARAM_AIFS] = p->aifs;
e6f5b934 3052 params[B43_QOSPARAM_BSLOTS] = bslots;
0b57664c 3053 params[B43_QOSPARAM_REGGAP] = bslots + p->aifs;
e6f5b934
MB		 3054
3055 for (i = 0; i < ARRAY_SIZE(params); i++) {
3056 if (i == B43_QOSPARAM_STATUS) {
3057 tmp = b43_shm_read16(dev, B43_SHM_SHARED,
3058 shm_offset + (i * 2));
3059 /* Mark the parameters as updated. */
3060 tmp |= 0x100;
3061 b43_shm_write16(dev, B43_SHM_SHARED,
3062 shm_offset + (i * 2),
3063 tmp);
3064 } else {
3065 b43_shm_write16(dev, B43_SHM_SHARED,
3066 shm_offset + (i * 2),
3067 params[i]);
3068 }
3069 }
3070}
3071
3072/* Update the QOS parameters in hardware. */
3073static void b43_qos_update(struct b43_wldev *dev)
3074{
3075 struct b43_wl *wl = dev->wl;
3076 struct b43_qos_params *params;
3077 unsigned long flags;
3078 unsigned int i;
3079
3080 /* Mapping of mac80211 queues to b43 SHM offsets. */
3081 static const u16 qos_shm_offsets[] = {
3082 [0] = B43_QOS_VOICE,
3083 [1] = B43_QOS_VIDEO,
3084 [2] = B43_QOS_BESTEFFORT,
3085 [3] = B43_QOS_BACKGROUND,
3086 };
3087 BUILD_BUG_ON(ARRAY_SIZE(qos_shm_offsets) != ARRAY_SIZE(wl->qos_params));
3088
3089 b43_mac_suspend(dev);
3090 spin_lock_irqsave(&wl->irq_lock, flags);
3091
3092 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
3093 params = &(wl->qos_params[i]);
3094 if (params->need_hw_update) {
3095 b43_qos_params_upload(dev, &(params->p),
3096 qos_shm_offsets[i]);
3097 params->need_hw_update = 0;
3098 }
3099 }
3100
3101 spin_unlock_irqrestore(&wl->irq_lock, flags);
3102 b43_mac_enable(dev);
3103}
3104
3105static void b43_qos_clear(struct b43_wl *wl)
3106{
3107 struct b43_qos_params *params;
3108 unsigned int i;
3109
3110 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
3111 params = &(wl->qos_params[i]);
3112
3113 memset(&(params->p), 0, sizeof(params->p));
3114 params->p.aifs = -1;
3115 params->need_hw_update = 1;
3116 }
3117}
3118
3119/* Initialize the core's QOS capabilities */
3120static void b43_qos_init(struct b43_wldev *dev)
3121{
3122 struct b43_wl *wl = dev->wl;
3123 unsigned int i;
3124
3125 /* Upload the current QOS parameters. */
3126 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++)
3127 wl->qos_params[i].need_hw_update = 1;
3128 b43_qos_update(dev);
3129
3130 /* Enable QOS support. */
3131 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF);
3132 b43_write16(dev, B43_MMIO_IFSCTL,
3133 b43_read16(dev, B43_MMIO_IFSCTL)
3134 | B43_MMIO_IFSCTL_USE_EDCF);
3135}
3136
3137static void b43_qos_update_work(struct work_struct *work)
3138{
3139 struct b43_wl *wl = container_of(work, struct b43_wl, qos_update_work);
3140 struct b43_wldev *dev;
3141
3142 mutex_lock(&wl->mutex);
3143 dev = wl->current_dev;
3144 if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED)))
3145 b43_qos_update(dev);
3146 mutex_unlock(&wl->mutex);
3147}
3148
e100bb64 3149static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue,
40faacc4 3150 const struct ieee80211_tx_queue_params *params)
e4d6b795 3151{
e6f5b934
MB		 3152 struct b43_wl *wl = hw_to_b43_wl(hw);
3153 unsigned long flags;
3154 unsigned int queue = (unsigned int)_queue;
3155 struct b43_qos_params *p;
3156
3157 if (queue >= ARRAY_SIZE(wl->qos_params)) {
3158 /* Queue not available or don't support setting
3159 * params on this queue. Return success to not
3160 * confuse mac80211. */
3161 return 0;
3162 }
3163
3164 spin_lock_irqsave(&wl->irq_lock, flags);
3165 p = &(wl->qos_params[queue]);
3166 memcpy(&(p->p), params, sizeof(p->p));
3167 p->need_hw_update = 1;
3168 spin_unlock_irqrestore(&wl->irq_lock, flags);
3169
3170 queue_work(hw->workqueue, &wl->qos_update_work);
3171
e4d6b795
MB		 3172 return 0;
3173}
3174
40faacc4
MB		 3175static int b43_op_get_tx_stats(struct ieee80211_hw *hw,
3176 struct ieee80211_tx_queue_stats *stats)
e4d6b795
MB		 3177{
3178 struct b43_wl *wl = hw_to_b43_wl(hw);
3179 struct b43_wldev *dev = wl->current_dev;
3180 unsigned long flags;
3181 int err = -ENODEV;
3182
3183 if (!dev)
3184 goto out;
3185 spin_lock_irqsave(&wl->irq_lock, flags);
3186 if (likely(b43_status(dev) >= B43_STAT_STARTED)) {
5100d5ac
MB		 3187 if (b43_using_pio_transfers(dev))
3188 b43_pio_get_tx_stats(dev, stats);
3189 else
3190 b43_dma_get_tx_stats(dev, stats);
e4d6b795
MB		 3191 err = 0;
3192 }
3193 spin_unlock_irqrestore(&wl->irq_lock, flags);
40faacc4 3194out:
e4d6b795
MB		 3195 return err;
3196}
3197
40faacc4
MB		 3198static int b43_op_get_stats(struct ieee80211_hw *hw,
3199 struct ieee80211_low_level_stats *stats)
e4d6b795
MB		 3200{
3201 struct b43_wl *wl = hw_to_b43_wl(hw);
3202 unsigned long flags;
3203
3204 spin_lock_irqsave(&wl->irq_lock, flags);
3205 memcpy(stats, &wl->ieee_stats, sizeof(*stats));
3206 spin_unlock_irqrestore(&wl->irq_lock, flags);
3207
3208 return 0;
3209}
3210
e4d6b795
MB		 3211static void b43_put_phy_into_reset(struct b43_wldev *dev)
3212{
3213 struct ssb_device *sdev = dev->dev;
3214 u32 tmslow;
3215
3216 tmslow = ssb_read32(sdev, SSB_TMSLOW);
3217 tmslow &= ~B43_TMSLOW_GMODE;
3218 tmslow |= B43_TMSLOW_PHYRESET;
3219 tmslow |= SSB_TMSLOW_FGC;
3220 ssb_write32(sdev, SSB_TMSLOW, tmslow);
3221 msleep(1);
3222
3223 tmslow = ssb_read32(sdev, SSB_TMSLOW);
3224 tmslow &= ~SSB_TMSLOW_FGC;
3225 tmslow |= B43_TMSLOW_PHYRESET;
3226 ssb_write32(sdev, SSB_TMSLOW, tmslow);
3227 msleep(1);
3228}
3229
bb1eeff1
MB		 3230static const char * band_to_string(enum ieee80211_band band)
3231{
3232 switch (band) {
3233 case IEEE80211_BAND_5GHZ:
3234 return "5";
3235 case IEEE80211_BAND_2GHZ:
3236 return "2.4";
3237 default:
3238 break;
3239 }
3240 B43_WARN_ON(1);
3241 return "";
3242}
3243
e4d6b795 3244/* Expects wl->mutex locked */
bb1eeff1 3245static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan)
e4d6b795 3246{
bb1eeff1 3247 struct b43_wldev *up_dev = NULL;
e4d6b795 3248 struct b43_wldev *down_dev;
bb1eeff1 3249 struct b43_wldev *d;
e4d6b795 3250 int err;
bb1eeff1 3251 bool gmode;
e4d6b795
MB		 3252 int prev_status;
3253
bb1eeff1
MB		 3254 /* Find a device and PHY which supports the band. */
3255 list_for_each_entry(d, &wl->devlist, list) {
3256 switch (chan->band) {
3257 case IEEE80211_BAND_5GHZ:
3258 if (d->phy.supports_5ghz) {
3259 up_dev = d;
3260 gmode = 0;
3261 }
3262 break;
3263 case IEEE80211_BAND_2GHZ:
3264 if (d->phy.supports_2ghz) {
3265 up_dev = d;
3266 gmode = 1;
3267 }
3268 break;
3269 default:
3270 B43_WARN_ON(1);
3271 return -EINVAL;
3272 }
3273 if (up_dev)
3274 break;
3275 }
3276 if (!up_dev) {
3277 b43err(wl, "Could not find a device for %s-GHz band operation\n",
3278 band_to_string(chan->band));
3279 return -ENODEV;
e4d6b795
MB		 3280 }
3281 if ((up_dev == wl->current_dev) &&
3282 (!!wl->current_dev->phy.gmode == !!gmode)) {
3283 /* This device is already running. */
3284 return 0;
3285 }
bb1eeff1
MB		 3286 b43dbg(wl, "Switching to %s-GHz band\n",
3287 band_to_string(chan->band));
e4d6b795
MB		 3288 down_dev = wl->current_dev;
3289
3290 prev_status = b43_status(down_dev);
3291 /* Shutdown the currently running core. */
3292 if (prev_status >= B43_STAT_STARTED)
3293 b43_wireless_core_stop(down_dev);
3294 if (prev_status >= B43_STAT_INITIALIZED)
3295 b43_wireless_core_exit(down_dev);
3296
3297 if (down_dev != up_dev) {
3298 /* We switch to a different core, so we put PHY into
3299 * RESET on the old core. */
3300 b43_put_phy_into_reset(down_dev);
3301 }
3302
3303 /* Now start the new core. */
3304 up_dev->phy.gmode = gmode;
3305 if (prev_status >= B43_STAT_INITIALIZED) {
3306 err = b43_wireless_core_init(up_dev);
3307 if (err) {
3308 b43err(wl, "Fatal: Could not initialize device for "
bb1eeff1
MB		 3309 "selected %s-GHz band\n",
3310 band_to_string(chan->band));
e4d6b795
MB		 3311 goto init_failure;
3312 }
3313 }
3314 if (prev_status >= B43_STAT_STARTED) {
3315 err = b43_wireless_core_start(up_dev);
3316 if (err) {
3317 b43err(wl, "Fatal: Coult not start device for "
bb1eeff1
MB		 3318 "selected %s-GHz band\n",
3319 band_to_string(chan->band));
e4d6b795
MB		 3320 b43_wireless_core_exit(up_dev);
3321 goto init_failure;
3322 }
3323 }
3324 B43_WARN_ON(b43_status(up_dev) != prev_status);
3325
3326 wl->current_dev = up_dev;
3327
3328 return 0;
bb1eeff1 3329init_failure:
e4d6b795
MB		 3330 /* Whoops, failed to init the new core. No core is operating now. */
3331 wl->current_dev = NULL;
3332 return err;
3333}
3334
40faacc4 3335static int b43_op_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
e4d6b795
MB		 3336{
3337 struct b43_wl *wl = hw_to_b43_wl(hw);
3338 struct b43_wldev *dev;
3339 struct b43_phy *phy;
3340 unsigned long flags;
9db1f6d7 3341 int antenna;
e4d6b795
MB		 3342 int err = 0;
3343 u32 savedirqs;
3344
e4d6b795
MB		 3345 mutex_lock(&wl->mutex);
3346
bb1eeff1
MB		 3347 /* Switch the band (if necessary). This might change the active core. */
3348 err = b43_switch_band(wl, conf->channel);
e4d6b795
MB		 3349 if (err)
3350 goto out_unlock_mutex;
3351 dev = wl->current_dev;
3352 phy = &dev->phy;
3353
3354 /* Disable IRQs while reconfiguring the device.
3355 * This makes it possible to drop the spinlock throughout
3356 * the reconfiguration process. */
3357 spin_lock_irqsave(&wl->irq_lock, flags);
3358 if (b43_status(dev) < B43_STAT_STARTED) {
3359 spin_unlock_irqrestore(&wl->irq_lock, flags);
3360 goto out_unlock_mutex;
3361 }
3362 savedirqs = b43_interrupt_disable(dev, B43_IRQ_ALL);
3363 spin_unlock_irqrestore(&wl->irq_lock, flags);
3364 b43_synchronize_irq(dev);
3365
3366 /* Switch to the requested channel.
3367 * The firmware takes care of races with the TX handler. */
8318d78a 3368 if (conf->channel->hw_value != phy->channel)
ef1a628d 3369 b43_switch_channel(dev, conf->channel->hw_value);
e4d6b795
MB		 3370
3371 /* Enable/Disable ShortSlot timing. */
3372 if ((!!(conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME)) !=
3373 dev->short_slot) {
3374 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
3375 if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME)
3376 b43_short_slot_timing_enable(dev);
3377 else
3378 b43_short_slot_timing_disable(dev);
3379 }
3380
d42ce84a
JB		 3381 dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_RADIOTAP);
3382
e4d6b795
MB		 3383 /* Adjust the desired TX power level. */
3384 if (conf->power_level != 0) {
3385 if (conf->power_level != phy->power_level) {
3386 phy->power_level = conf->power_level;
ef1a628d 3387 phy->ops->xmitpower(dev);
e4d6b795
MB		 3388 }
3389 }
3390
3391 /* Antennas for RX and management frame TX. */
9db1f6d7
MB		 3392 antenna = b43_antenna_from_ieee80211(dev, conf->antenna_sel_tx);
3393 b43_mgmtframe_txantenna(dev, antenna);
3394 antenna = b43_antenna_from_ieee80211(dev, conf->antenna_sel_rx);
ef1a628d
MB		 3395 if (phy->ops->set_rx_antenna)
3396 phy->ops->set_rx_antenna(dev, antenna);
e4d6b795 3397
04dea136
JB		 3398 /* Update templates for AP/mesh mode. */
3399 if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP) ||
3400 b43_is_mode(wl, IEEE80211_IF_TYPE_MESH_POINT))
e4d6b795
MB		 3401 b43_set_beacon_int(dev, conf->beacon_int);
3402
fda9abcf
MB		 3403 if (!!conf->radio_enabled != phy->radio_on) {
3404 if (conf->radio_enabled) {
ef1a628d 3405 b43_software_rfkill(dev, RFKILL_STATE_UNBLOCKED);
fda9abcf
MB		 3406 b43info(dev->wl, "Radio turned on by software\n");
3407 if (!dev->radio_hw_enable) {
3408 b43info(dev->wl, "The hardware RF-kill button "
3409 "still turns the radio physically off. "
3410 "Press the button to turn it on.\n");
3411 }
3412 } else {
ef1a628d 3413 b43_software_rfkill(dev, RFKILL_STATE_SOFT_BLOCKED);
fda9abcf
MB		 3414 b43info(dev->wl, "Radio turned off by software\n");
3415 }
3416 }
3417
e4d6b795
MB		 3418 spin_lock_irqsave(&wl->irq_lock, flags);
3419 b43_interrupt_enable(dev, savedirqs);
3420 mmiowb();
3421 spin_unlock_irqrestore(&wl->irq_lock, flags);
3422 out_unlock_mutex:
3423 mutex_unlock(&wl->mutex);
3424
3425 return err;
3426}
3427
40faacc4 3428static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
4150c572
JB		 3429 const u8 *local_addr, const u8 *addr,
3430 struct ieee80211_key_conf *key)
e4d6b795
MB		 3431{
3432 struct b43_wl *wl = hw_to_b43_wl(hw);
c6dfc9a8 3433 struct b43_wldev *dev;
e4d6b795
MB		 3434 unsigned long flags;
3435 u8 algorithm;
3436 u8 index;
c6dfc9a8 3437 int err;
0795af57 3438 DECLARE_MAC_BUF(mac);
e4d6b795
MB		 3439
3440 if (modparam_nohwcrypt)
3441 return -ENOSPC; /* User disabled HW-crypto */
3442
c6dfc9a8
MB		 3443 mutex_lock(&wl->mutex);
3444 spin_lock_irqsave(&wl->irq_lock, flags);
3445
3446 dev = wl->current_dev;
3447 err = -ENODEV;
3448 if (!dev || b43_status(dev) < B43_STAT_INITIALIZED)
3449 goto out_unlock;
3450
68217832
MB		 3451 if (dev->fw.pcm_request_failed) {
3452 /* We don't have firmware for the crypto engine.
3453 * Must use software-crypto. */
3454 err = -EOPNOTSUPP;
3455 goto out_unlock;
3456 }
3457
c6dfc9a8 3458 err = -EINVAL;
e4d6b795 3459 switch (key->alg) {
e4d6b795
MB		 3460 case ALG_WEP:
3461 if (key->keylen == 5)
3462 algorithm = B43_SEC_ALGO_WEP40;
3463 else
3464 algorithm = B43_SEC_ALGO_WEP104;
3465 break;
3466 case ALG_TKIP:
3467 algorithm = B43_SEC_ALGO_TKIP;
3468 break;
3469 case ALG_CCMP:
3470 algorithm = B43_SEC_ALGO_AES;
3471 break;
3472 default:
3473 B43_WARN_ON(1);
c6dfc9a8 3474 goto out_unlock;
e4d6b795 3475 }
e4d6b795
MB		 3476 index = (u8) (key->keyidx);
3477 if (index > 3)
e4d6b795 3478 goto out_unlock;
e4d6b795
MB		 3479
3480 switch (cmd) {
3481 case SET_KEY:
3482 if (algorithm == B43_SEC_ALGO_TKIP) {
3483 /* FIXME: No TKIP hardware encryption for now. */
3484 err = -EOPNOTSUPP;
3485 goto out_unlock;
3486 }
3487
3488 if (is_broadcast_ether_addr(addr)) {
3489 /* addr is FF:FF:FF:FF:FF:FF for default keys */
3490 err = b43_key_write(dev, index, algorithm,
3491 key->key, key->keylen, NULL, key);
3492 } else {
3493 /*
3494 * either pairwise key or address is 00:00:00:00:00:00
3495 * for transmit-only keys
3496 */
3497 err = b43_key_write(dev, -1, algorithm,
3498 key->key, key->keylen, addr, key);
3499 }
3500 if (err)
3501 goto out_unlock;
3502
3503 if (algorithm == B43_SEC_ALGO_WEP40 ||
3504 algorithm == B43_SEC_ALGO_WEP104) {
3505 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS);
3506 } else {
3507 b43_hf_write(dev,
3508 b43_hf_read(dev) & ~B43_HF_USEDEFKEYS);
3509 }
3510 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
3511 break;
3512 case DISABLE_KEY: {
3513 err = b43_key_clear(dev, key->hw_key_idx);
3514 if (err)
3515 goto out_unlock;
3516 break;
3517 }
3518 default:
3519 B43_WARN_ON(1);
3520 }
3521out_unlock:
3522 spin_unlock_irqrestore(&wl->irq_lock, flags);
3523 mutex_unlock(&wl->mutex);
e4d6b795
MB		 3524 if (!err) {
3525 b43dbg(wl, "%s hardware based encryption for keyidx: %d, "
0795af57 3526 "mac: %s\n",
e4d6b795 3527 cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
0795af57 3528 print_mac(mac, addr));
e4d6b795
MB		 3529 }
3530 return err;
3531}
3532
40faacc4
MB		 3533static void b43_op_configure_filter(struct ieee80211_hw *hw,
3534 unsigned int changed, unsigned int *fflags,
3535 int mc_count, struct dev_addr_list *mc_list)
e4d6b795
MB		 3536{
3537 struct b43_wl *wl = hw_to_b43_wl(hw);
3538 struct b43_wldev *dev = wl->current_dev;
3539 unsigned long flags;
3540
4150c572
JB		 3541 if (!dev) {
3542 *fflags = 0;
e4d6b795 3543 return;
e4d6b795 3544 }
4150c572
JB		 3545
3546 spin_lock_irqsave(&wl->irq_lock, flags);
3547 *fflags &= FIF_PROMISC_IN_BSS |
3548 FIF_ALLMULTI |
3549 FIF_FCSFAIL |
3550 FIF_PLCPFAIL |
3551 FIF_CONTROL |
3552 FIF_OTHER_BSS |
3553 FIF_BCN_PRBRESP_PROMISC;
3554
3555 changed &= FIF_PROMISC_IN_BSS |
3556 FIF_ALLMULTI |
3557 FIF_FCSFAIL |
3558 FIF_PLCPFAIL |
3559 FIF_CONTROL |
3560 FIF_OTHER_BSS |
3561 FIF_BCN_PRBRESP_PROMISC;
3562
3563 wl->filter_flags = *fflags;
3564
3565 if (changed && b43_status(dev) >= B43_STAT_INITIALIZED)
3566 b43_adjust_opmode(dev);
e4d6b795
MB		 3567 spin_unlock_irqrestore(&wl->irq_lock, flags);
3568}
3569
40faacc4 3570static int b43_op_config_interface(struct ieee80211_hw *hw,
32bfd35d 3571 struct ieee80211_vif *vif,
40faacc4 3572 struct ieee80211_if_conf *conf)
e4d6b795
MB		 3573{
3574 struct b43_wl *wl = hw_to_b43_wl(hw);
3575 struct b43_wldev *dev = wl->current_dev;
3576 unsigned long flags;
3577
3578 if (!dev)
3579 return -ENODEV;
3580 mutex_lock(&wl->mutex);
3581 spin_lock_irqsave(&wl->irq_lock, flags);
32bfd35d 3582 B43_WARN_ON(wl->vif != vif);
4150c572
JB		 3583 if (conf->bssid)
3584 memcpy(wl->bssid, conf->bssid, ETH_ALEN);
3585 else
3586 memset(wl->bssid, 0, ETH_ALEN);
3587 if (b43_status(dev) >= B43_STAT_INITIALIZED) {
04dea136
JB		 3588 if (b43_is_mode(wl, IEEE80211_IF_TYPE_AP) ||
3589 b43_is_mode(wl, IEEE80211_IF_TYPE_MESH_POINT)) {
9d139c81
JB		 3590 B43_WARN_ON(vif->type != wl->if_type);
3591 if (conf->changed & IEEE80211_IFCC_SSID)
3592 b43_set_ssid(dev, conf->ssid, conf->ssid_len);
3593 if (conf->changed & IEEE80211_IFCC_BEACON)
3594 b43_update_templates(wl);
3595 } else if (b43_is_mode(wl, IEEE80211_IF_TYPE_IBSS)) {
3596 if (conf->changed & IEEE80211_IFCC_BEACON)
3597 b43_update_templates(wl);
e4d6b795 3598 }
4150c572 3599 b43_write_mac_bssid_templates(dev);
e4d6b795
MB		 3600 }
3601 spin_unlock_irqrestore(&wl->irq_lock, flags);
3602 mutex_unlock(&wl->mutex);
3603
3604 return 0;
3605}
3606
3607/* Locking: wl->mutex */
3608static void b43_wireless_core_stop(struct b43_wldev *dev)
3609{
3610 struct b43_wl *wl = dev->wl;
3611 unsigned long flags;
3612
3613 if (b43_status(dev) < B43_STAT_STARTED)
3614 return;
a19d12d7
SB		 3615
3616 /* Disable and sync interrupts. We must do this before than
3617 * setting the status to INITIALIZED, as the interrupt handler
3618 * won't care about IRQs then. */
3619 spin_lock_irqsave(&wl->irq_lock, flags);
3620 dev->irq_savedstate = b43_interrupt_disable(dev, B43_IRQ_ALL);
3621 b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* flush */
3622 spin_unlock_irqrestore(&wl->irq_lock, flags);
3623 b43_synchronize_irq(dev);
3624
21a75d77 3625 write_lock_irqsave(&wl->tx_lock, flags);
e4d6b795 3626 b43_set_status(dev, B43_STAT_INITIALIZED);
21a75d77 3627 write_unlock_irqrestore(&wl->tx_lock, flags);
e4d6b795 3628
5100d5ac 3629 b43_pio_stop(dev);
e4d6b795
MB		 3630 mutex_unlock(&wl->mutex);
3631 /* Must unlock as it would otherwise deadlock. No races here.
3632 * Cancel the possibly running self-rearming periodic work. */
3633 cancel_delayed_work_sync(&dev->periodic_work);
3634 mutex_lock(&wl->mutex);
3635
e4d6b795
MB		 3636 b43_mac_suspend(dev);
3637 free_irq(dev->dev->irq, dev);
3638 b43dbg(wl, "Wireless interface stopped\n");
3639}
3640
3641/* Locking: wl->mutex */
3642static int b43_wireless_core_start(struct b43_wldev *dev)
3643{
3644 int err;
3645
3646 B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED);
3647
3648 drain_txstatus_queue(dev);
3649 err = request_irq(dev->dev->irq, b43_interrupt_handler,
3650 IRQF_SHARED, KBUILD_MODNAME, dev);
3651 if (err) {
3652 b43err(dev->wl, "Cannot request IRQ-%d\n", dev->dev->irq);
3653 goto out;
3654 }
3655
3656 /* We are ready to run. */
3657 b43_set_status(dev, B43_STAT_STARTED);
3658
3659 /* Start data flow (TX/RX). */
3660 b43_mac_enable(dev);
3661 b43_interrupt_enable(dev, dev->irq_savedstate);
e4d6b795
MB		 3662
3663 /* Start maintainance work */
3664 b43_periodic_tasks_setup(dev);
3665
3666 b43dbg(dev->wl, "Wireless interface started\n");
3667 out:
3668 return err;
3669}
3670
3671/* Get PHY and RADIO versioning numbers */
3672static int b43_phy_versioning(struct b43_wldev *dev)
3673{
3674 struct b43_phy *phy = &dev->phy;
3675 u32 tmp;
3676 u8 analog_type;
3677 u8 phy_type;
3678 u8 phy_rev;
3679 u16 radio_manuf;
3680 u16 radio_ver;
3681 u16 radio_rev;
3682 int unsupported = 0;
3683
3684 /* Get PHY versioning */
3685 tmp = b43_read16(dev, B43_MMIO_PHY_VER);
3686 analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT;
3687 phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT;
3688 phy_rev = (tmp & B43_PHYVER_VERSION);
3689 switch (phy_type) {
3690 case B43_PHYTYPE_A:
3691 if (phy_rev >= 4)
3692 unsupported = 1;
3693 break;
3694 case B43_PHYTYPE_B:
3695 if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6
3696 && phy_rev != 7)
3697 unsupported = 1;
3698 break;
3699 case B43_PHYTYPE_G:
013978b6 3700 if (phy_rev > 9)
e4d6b795
MB		 3701 unsupported = 1;
3702 break;
d5c71e46
MB		 3703#ifdef CONFIG_B43_NPHY
3704 case B43_PHYTYPE_N:
3705 if (phy_rev > 1)
3706 unsupported = 1;
3707 break;
3708#endif
e4d6b795
MB		 3709 default:
3710 unsupported = 1;
3711 };
3712 if (unsupported) {
3713 b43err(dev->wl, "FOUND UNSUPPORTED PHY "
3714 "(Analog %u, Type %u, Revision %u)\n",
3715 analog_type, phy_type, phy_rev);
3716 return -EOPNOTSUPP;
3717 }
3718 b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n",
3719 analog_type, phy_type, phy_rev);
3720
3721 /* Get RADIO versioning */
3722 if (dev->dev->bus->chip_id == 0x4317) {
3723 if (dev->dev->bus->chip_rev == 0)
3724 tmp = 0x3205017F;
3725 else if (dev->dev->bus->chip_rev == 1)
3726 tmp = 0x4205017F;
3727 else
3728 tmp = 0x5205017F;
3729 } else {
3730 b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
243dcfcc 3731 tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
e4d6b795 3732 b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
243dcfcc 3733 tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH) << 16;
e4d6b795
MB		 3734 }
3735 radio_manuf = (tmp & 0x00000FFF);
3736 radio_ver = (tmp & 0x0FFFF000) >> 12;
3737 radio_rev = (tmp & 0xF0000000) >> 28;
96c755a3
MB		 3738 if (radio_manuf != 0x17F /* Broadcom */)
3739 unsupported = 1;
e4d6b795
MB		 3740 switch (phy_type) {
3741 case B43_PHYTYPE_A:
3742 if (radio_ver != 0x2060)
3743 unsupported = 1;
3744 if (radio_rev != 1)
3745 unsupported = 1;
3746 if (radio_manuf != 0x17F)
3747 unsupported = 1;
3748 break;
3749 case B43_PHYTYPE_B:
3750 if ((radio_ver & 0xFFF0) != 0x2050)
3751 unsupported = 1;
3752 break;
3753 case B43_PHYTYPE_G:
3754 if (radio_ver != 0x2050)
3755 unsupported = 1;
3756 break;
96c755a3 3757 case B43_PHYTYPE_N:
243dcfcc 3758 if (radio_ver != 0x2055)
96c755a3
MB		 3759 unsupported = 1;
3760 break;
e4d6b795
MB		 3761 default:
3762 B43_WARN_ON(1);
3763 }
3764 if (unsupported) {
3765 b43err(dev->wl, "FOUND UNSUPPORTED RADIO "
3766 "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
3767 radio_manuf, radio_ver, radio_rev);
3768 return -EOPNOTSUPP;
3769 }
3770 b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n",
3771 radio_manuf, radio_ver, radio_rev);
3772
3773 phy->radio_manuf = radio_manuf;
3774 phy->radio_ver = radio_ver;
3775 phy->radio_rev = radio_rev;
3776
3777 phy->analog = analog_type;
3778 phy->type = phy_type;
3779 phy->rev = phy_rev;
3780
3781 return 0;
3782}
3783
3784static void setup_struct_phy_for_init(struct b43_wldev *dev,
3785 struct b43_phy *phy)
3786{
e4d6b795 3787 phy->hardware_power_control = !!modparam_hwpctl;
8ed7fc48
MB		 3788 /* PHY TX errors counter. */
3789 atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
e4d6b795
MB		 3790}
3791
3792static void setup_struct_wldev_for_init(struct b43_wldev *dev)
3793{
aa6c7ae2
MB		 3794 dev->dfq_valid = 0;
3795
6a724d68
MB		 3796 /* Assume the radio is enabled. If it's not enabled, the state will
3797 * immediately get fixed on the first periodic work run. */
3798 dev->radio_hw_enable = 1;
e4d6b795
MB		 3799
3800 /* Stats */
3801 memset(&dev->stats, 0, sizeof(dev->stats));
3802
3803 setup_struct_phy_for_init(dev, &dev->phy);
3804
3805 /* IRQ related flags */
3806 dev->irq_reason = 0;
3807 memset(dev->dma_reason, 0, sizeof(dev->dma_reason));
3808 dev->irq_savedstate = B43_IRQ_MASKTEMPLATE;
3809
3810 dev->mac_suspended = 1;
3811
3812 /* Noise calculation context */
3813 memset(&dev->noisecalc, 0, sizeof(dev->noisecalc));
3814}
3815
3816static void b43_bluetooth_coext_enable(struct b43_wldev *dev)
3817{
3818 struct ssb_sprom *sprom = &dev->dev->bus->sprom;
a259d6a4 3819 u64 hf;
e4d6b795 3820
1855ba78
MB		 3821 if (!modparam_btcoex)
3822 return;
95de2841 3823 if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST))
e4d6b795
MB		 3824 return;
3825 if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode)
3826 return;
3827
3828 hf = b43_hf_read(dev);
95de2841 3829 if (sprom->boardflags_lo & B43_BFL_BTCMOD)
e4d6b795
MB		 3830 hf |= B43_HF_BTCOEXALT;
3831 else
3832 hf |= B43_HF_BTCOEX;
3833 b43_hf_write(dev, hf);
e4d6b795
MB		 3834}
3835
3836static void b43_bluetooth_coext_disable(struct b43_wldev *dev)
1855ba78
MB		 3837{
3838 if (!modparam_btcoex)
3839 return;
3840 //TODO
e4d6b795
MB		 3841}
3842
3843static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev)
3844{
3845#ifdef CONFIG_SSB_DRIVER_PCICORE
3846 struct ssb_bus *bus = dev->dev->bus;
3847 u32 tmp;
3848
3849 if (bus->pcicore.dev &&
3850 bus->pcicore.dev->id.coreid == SSB_DEV_PCI &&
3851 bus->pcicore.dev->id.revision <= 5) {
3852 /* IMCFGLO timeouts workaround. */
3853 tmp = ssb_read32(dev->dev, SSB_IMCFGLO);
3854 tmp &= ~SSB_IMCFGLO_REQTO;
3855 tmp &= ~SSB_IMCFGLO_SERTO;
3856 switch (bus->bustype) {
3857 case SSB_BUSTYPE_PCI:
3858 case SSB_BUSTYPE_PCMCIA:
3859 tmp |= 0x32;
3860 break;
3861 case SSB_BUSTYPE_SSB:
3862 tmp |= 0x53;
3863 break;
3864 }
3865 ssb_write32(dev->dev, SSB_IMCFGLO, tmp);
3866 }
3867#endif /* CONFIG_SSB_DRIVER_PCICORE */
3868}
3869
74cfdba7
MB		 3870/* Write the short and long frame retry limit values. */
3871static void b43_set_retry_limits(struct b43_wldev *dev,
3872 unsigned int short_retry,
3873 unsigned int long_retry)
3874{
3875 /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
3876 * the chip-internal counter. */
3877 short_retry = min(short_retry, (unsigned int)0xF);
3878 long_retry = min(long_retry, (unsigned int)0xF);
3879
3880 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT,
3881 short_retry);
3882 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT,
3883 long_retry);
3884}
3885
d59f720d
MB		 3886static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle)
3887{
3888 u16 pu_delay;
3889
3890 /* The time value is in microseconds. */
3891 if (dev->phy.type == B43_PHYTYPE_A)
3892 pu_delay = 3700;
3893 else
3894 pu_delay = 1050;
8cf6a31e 3895 if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS) || idle)
d59f720d
MB		 3896 pu_delay = 500;
3897 if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8))
3898 pu_delay = max(pu_delay, (u16)2400);
3899
3900 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay);
3901}
3902
3903/* Set the TSF CFP pre-TargetBeaconTransmissionTime. */
3904static void b43_set_pretbtt(struct b43_wldev *dev)
3905{
3906 u16 pretbtt;
3907
3908 /* The time value is in microseconds. */
8cf6a31e 3909 if (b43_is_mode(dev->wl, IEEE80211_IF_TYPE_IBSS)) {
d59f720d
MB		 3910 pretbtt = 2;
3911 } else {
3912 if (dev->phy.type == B43_PHYTYPE_A)
3913 pretbtt = 120;
3914 else
3915 pretbtt = 250;
3916 }
3917 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt);
3918 b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt);
3919}
3920
e4d6b795
MB		 3921/* Shutdown a wireless core */
3922/* Locking: wl->mutex */
3923static void b43_wireless_core_exit(struct b43_wldev *dev)
3924{
1f7d87b0 3925 u32 macctl;
e4d6b795
MB		 3926
3927 B43_WARN_ON(b43_status(dev) > B43_STAT_INITIALIZED);
3928 if (b43_status(dev) != B43_STAT_INITIALIZED)
3929 return;
3930 b43_set_status(dev, B43_STAT_UNINIT);
3931
1f7d87b0
MB		 3932 /* Stop the microcode PSM. */
3933 macctl = b43_read32(dev, B43_MMIO_MACCTL);
3934 macctl &= ~B43_MACCTL_PSM_RUN;
3935 macctl |= B43_MACCTL_PSM_JMP0;
3936 b43_write32(dev, B43_MMIO_MACCTL, macctl);
3937
3506e0c4
RW		 3938 if (!dev->suspend_in_progress) {
3939 b43_leds_exit(dev);
b844eba2 3940 b43_rng_exit(dev->wl);
3506e0c4 3941 }
e4d6b795 3942 b43_dma_free(dev);
5100d5ac 3943 b43_pio_free(dev);
e4d6b795 3944 b43_chip_exit(dev);
e4d6b795 3945 b43_switch_analog(dev, 0);
e66fee6a
MB		 3946 if (dev->wl->current_beacon) {
3947 dev_kfree_skb_any(dev->wl->current_beacon);
3948 dev->wl->current_beacon = NULL;
3949 }
ef1a628d 3950 b43_phy_exit(dev);
e66fee6a 3951
e4d6b795
MB		 3952 ssb_device_disable(dev->dev, 0);
3953 ssb_bus_may_powerdown(dev->dev->bus);
3954}
3955
3956/* Initialize a wireless core */
3957static int b43_wireless_core_init(struct b43_wldev *dev)
3958{
3959 struct b43_wl *wl = dev->wl;
3960 struct ssb_bus *bus = dev->dev->bus;
3961 struct ssb_sprom *sprom = &bus->sprom;
3962 struct b43_phy *phy = &dev->phy;
3963 int err;
a259d6a4
MB		 3964 u64 hf;
3965 u32 tmp;
e4d6b795
MB		 3966
3967 B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
3968
3969 err = ssb_bus_powerup(bus, 0);
3970 if (err)
3971 goto out;
3972 if (!ssb_device_is_enabled(dev->dev)) {
3973 tmp = phy->gmode ? B43_TMSLOW_GMODE : 0;
3974 b43_wireless_core_reset(dev, tmp);
3975 }
3976
e4d6b795 3977 setup_struct_wldev_for_init(dev);
ef1a628d 3978 err = b43_phy_operations_setup(dev);
e4d6b795 3979 if (err)
ef1a628d 3980 goto err_busdown;
e4d6b795
MB		 3981
3982 /* Enable IRQ routing to this device. */
3983 ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev);
3984
3985 b43_imcfglo_timeouts_workaround(dev);
3986 b43_bluetooth_coext_disable(dev);
ef1a628d
MB		 3987 if (phy->ops->prepare) {
3988 err = phy->ops->prepare(dev);
3989 if (err)
3990 goto err_phy_exit;
3991 }
e4d6b795
MB		 3992 err = b43_chip_init(dev);
3993 if (err)
ef1a628d 3994 goto err_phy_exit;
e4d6b795
MB		 3995 b43_shm_write16(dev, B43_SHM_SHARED,
3996 B43_SHM_SH_WLCOREREV, dev->dev->id.revision);
3997 hf = b43_hf_read(dev);
3998 if (phy->type == B43_PHYTYPE_G) {
3999 hf |= B43_HF_SYMW;
4000 if (phy->rev == 1)
4001 hf |= B43_HF_GDCW;
95de2841 4002 if (sprom->boardflags_lo & B43_BFL_PACTRL)
e4d6b795
MB		 4003 hf |= B43_HF_OFDMPABOOST;
4004 } else if (phy->type == B43_PHYTYPE_B) {
4005 hf |= B43_HF_SYMW;
4006 if (phy->rev >= 2 && phy->radio_ver == 0x2050)
4007 hf &= ~B43_HF_GDCW;
4008 }
4009 b43_hf_write(dev, hf);
4010
74cfdba7
MB		 4011 b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT,
4012 B43_DEFAULT_LONG_RETRY_LIMIT);
e4d6b795
MB		 4013 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3);
4014 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2);
4015
4016 /* Disable sending probe responses from firmware.
4017 * Setting the MaxTime to one usec will always trigger
4018 * a timeout, so we never send any probe resp.
4019 * A timeout of zero is infinite. */
4020 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1);
4021
4022 b43_rate_memory_init(dev);
5042c507 4023 b43_set_phytxctl_defaults(dev);
e4d6b795
MB		 4024
4025 /* Minimum Contention Window */
4026 if (phy->type == B43_PHYTYPE_B) {
4027 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F);
4028 } else {
4029 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF);
4030 }
4031 /* Maximum Contention Window */
4032 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF);
4033
5100d5ac
MB		 4034 if ((dev->dev->bus->bustype == SSB_BUSTYPE_PCMCIA) || B43_FORCE_PIO) {
4035 dev->__using_pio_transfers = 1;
4036 err = b43_pio_init(dev);
4037 } else {
4038 dev->__using_pio_transfers = 0;
4039 err = b43_dma_init(dev);
4040 }
e4d6b795
MB		 4041 if (err)
4042 goto err_chip_exit;
03b29773 4043 b43_qos_init(dev);
d59f720d 4044 b43_set_synth_pu_delay(dev, 1);
e4d6b795
MB		 4045 b43_bluetooth_coext_enable(dev);
4046
4047 ssb_bus_powerup(bus, 1); /* Enable dynamic PCTL */
4150c572 4048 b43_upload_card_macaddress(dev);
e4d6b795 4049 b43_security_init(dev);
3506e0c4
RW		 4050 if (!dev->suspend_in_progress)
4051 b43_rng_init(wl);
e4d6b795
MB		 4052
4053 b43_set_status(dev, B43_STAT_INITIALIZED);
4054
3506e0c4
RW		 4055 if (!dev->suspend_in_progress)
4056 b43_leds_init(dev);
1a8d1227 4057out:
e4d6b795
MB		 4058 return err;
4059
ef1a628d 4060err_chip_exit:
e4d6b795 4061 b43_chip_exit(dev);
ef1a628d
MB		 4062err_phy_exit:
4063 b43_phy_exit(dev);
4064err_busdown:
e4d6b795
MB		 4065 ssb_bus_may_powerdown(bus);
4066 B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
4067 return err;
4068}
4069
40faacc4
MB		 4070static int b43_op_add_interface(struct ieee80211_hw *hw,
4071 struct ieee80211_if_init_conf *conf)
e4d6b795
MB		 4072{
4073 struct b43_wl *wl = hw_to_b43_wl(hw);
4074 struct b43_wldev *dev;
4075 unsigned long flags;
4076 int err = -EOPNOTSUPP;
4150c572
JB		 4077
4078 /* TODO: allow WDS/AP devices to coexist */
4079
4080 if (conf->type != IEEE80211_IF_TYPE_AP &&
04dea136 4081 conf->type != IEEE80211_IF_TYPE_MESH_POINT &&
4150c572
JB		 4082 conf->type != IEEE80211_IF_TYPE_STA &&
4083 conf->type != IEEE80211_IF_TYPE_WDS &&
4084 conf->type != IEEE80211_IF_TYPE_IBSS)
4085 return -EOPNOTSUPP;
e4d6b795
MB		 4086
4087 mutex_lock(&wl->mutex);
4150c572 4088 if (wl->operating)
e4d6b795
MB		 4089 goto out_mutex_unlock;
4090
4091 b43dbg(wl, "Adding Interface type %d\n", conf->type);
4092
4093 dev = wl->current_dev;
4150c572 4094 wl->operating = 1;
32bfd35d 4095 wl->vif = conf->vif;
4150c572
JB		 4096 wl->if_type = conf->type;
4097 memcpy(wl->mac_addr, conf->mac_addr, ETH_ALEN);
4098
4099 spin_lock_irqsave(&wl->irq_lock, flags);
4100 b43_adjust_opmode(dev);
d59f720d
MB		 4101 b43_set_pretbtt(dev);
4102 b43_set_synth_pu_delay(dev, 0);
4150c572
JB		 4103 b43_upload_card_macaddress(dev);
4104 spin_unlock_irqrestore(&wl->irq_lock, flags);
4105
4106 err = 0;
4107 out_mutex_unlock:
4108 mutex_unlock(&wl->mutex);
4109
4110 return err;
4111}
4112
40faacc4
MB		 4113static void b43_op_remove_interface(struct ieee80211_hw *hw,
4114 struct ieee80211_if_init_conf *conf)
4150c572
JB		 4115{
4116 struct b43_wl *wl = hw_to_b43_wl(hw);
4117 struct b43_wldev *dev = wl->current_dev;
4118 unsigned long flags;
4119
4120 b43dbg(wl, "Removing Interface type %d\n", conf->type);
4121
4122 mutex_lock(&wl->mutex);
4123
4124 B43_WARN_ON(!wl->operating);
32bfd35d
JB		 4125 B43_WARN_ON(wl->vif != conf->vif);
4126 wl->vif = NULL;
4150c572
JB		 4127
4128 wl->operating = 0;
4129
4130 spin_lock_irqsave(&wl->irq_lock, flags);
4131 b43_adjust_opmode(dev);
4132 memset(wl->mac_addr, 0, ETH_ALEN);
4133 b43_upload_card_macaddress(dev);
4134 spin_unlock_irqrestore(&wl->irq_lock, flags);
4135
4136 mutex_unlock(&wl->mutex);
4137}
4138
40faacc4 4139static int b43_op_start(struct ieee80211_hw *hw)
4150c572
JB		 4140{
4141 struct b43_wl *wl = hw_to_b43_wl(hw);
4142 struct b43_wldev *dev = wl->current_dev;
4143 int did_init = 0;
923403b8 4144 int err = 0;
1946a2c3 4145 bool do_rfkill_exit = 0;
4150c572 4146
7be1bb6b
MB		 4147 /* Kill all old instance specific information to make sure
4148 * the card won't use it in the short timeframe between start
4149 * and mac80211 reconfiguring it. */
4150 memset(wl->bssid, 0, ETH_ALEN);
4151 memset(wl->mac_addr, 0, ETH_ALEN);
4152 wl->filter_flags = 0;
4153 wl->radiotap_enabled = 0;
e6f5b934 4154 b43_qos_clear(wl);
6b4bec01
MB		 4155 wl->beacon0_uploaded = 0;
4156 wl->beacon1_uploaded = 0;
4157 wl->beacon_templates_virgin = 1;
7be1bb6b 4158
1a8d1227
LF		 4159 /* First register RFkill.
4160 * LEDs that are registered later depend on it. */
4161 b43_rfkill_init(dev);
4162
4150c572
JB		 4163 mutex_lock(&wl->mutex);
4164
e4d6b795
MB		 4165 if (b43_status(dev) < B43_STAT_INITIALIZED) {
4166 err = b43_wireless_core_init(dev);
1946a2c3
MB		 4167 if (err) {
4168 do_rfkill_exit = 1;
e4d6b795 4169 goto out_mutex_unlock;
1946a2c3 4170 }
e4d6b795
MB		 4171 did_init = 1;
4172 }
4150c572 4173
e4d6b795
MB		 4174 if (b43_status(dev) < B43_STAT_STARTED) {
4175 err = b43_wireless_core_start(dev);
4176 if (err) {
4177 if (did_init)
4178 b43_wireless_core_exit(dev);
1946a2c3 4179 do_rfkill_exit = 1;
e4d6b795
MB		 4180 goto out_mutex_unlock;
4181 }
4182 }
4183
4150c572 4184 out_mutex_unlock:
e4d6b795
MB		 4185 mutex_unlock(&wl->mutex);
4186
1946a2c3
MB		 4187 if (do_rfkill_exit)
4188 b43_rfkill_exit(dev);
4189
e4d6b795
MB		 4190 return err;
4191}
4192
40faacc4 4193static void b43_op_stop(struct ieee80211_hw *hw)
e4d6b795
MB		 4194{
4195 struct b43_wl *wl = hw_to_b43_wl(hw);
4150c572 4196 struct b43_wldev *dev = wl->current_dev;
e4d6b795 4197
1a8d1227 4198 b43_rfkill_exit(dev);
e6f5b934 4199 cancel_work_sync(&(wl->qos_update_work));
a82d9922 4200 cancel_work_sync(&(wl->beacon_update_trigger));
1a8d1227 4201
e4d6b795 4202 mutex_lock(&wl->mutex);
4150c572
JB		 4203 if (b43_status(dev) >= B43_STAT_STARTED)
4204 b43_wireless_core_stop(dev);
4205 b43_wireless_core_exit(dev);
e4d6b795
MB		 4206 mutex_unlock(&wl->mutex);
4207}
4208
74cfdba7
MB		 4209static int b43_op_set_retry_limit(struct ieee80211_hw *hw,
4210 u32 short_retry_limit, u32 long_retry_limit)
4211{
4212 struct b43_wl *wl = hw_to_b43_wl(hw);
4213 struct b43_wldev *dev;
4214 int err = 0;
4215
4216 mutex_lock(&wl->mutex);
4217 dev = wl->current_dev;
4218 if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) {
4219 err = -ENODEV;
4220 goto out_unlock;
4221 }
4222 b43_set_retry_limits(dev, short_retry_limit, long_retry_limit);
4223out_unlock:
4224 mutex_unlock(&wl->mutex);
4225
4226 return err;
4227}
4228
e66fee6a 4229static int b43_op_beacon_set_tim(struct ieee80211_hw *hw, int aid, int set)
e66fee6a
MB		 4230{
4231 struct b43_wl *wl = hw_to_b43_wl(hw);
d4df6f1a 4232 unsigned long flags;
e66fee6a 4233
d4df6f1a 4234 spin_lock_irqsave(&wl->irq_lock, flags);
9d139c81 4235 b43_update_templates(wl);
d4df6f1a 4236 spin_unlock_irqrestore(&wl->irq_lock, flags);
e66fee6a
MB		 4237
4238 return 0;
4239}
4240
38968d09
JB		 4241static void b43_op_sta_notify(struct ieee80211_hw *hw,
4242 struct ieee80211_vif *vif,
4243 enum sta_notify_cmd notify_cmd,
4244 const u8 *addr)
4245{
4246 struct b43_wl *wl = hw_to_b43_wl(hw);
4247
4248 B43_WARN_ON(!vif || wl->vif != vif);
4249}
4250
e4d6b795 4251static const struct ieee80211_ops b43_hw_ops = {
40faacc4
MB		 4252 .tx = b43_op_tx,
4253 .conf_tx = b43_op_conf_tx,
4254 .add_interface = b43_op_add_interface,
4255 .remove_interface = b43_op_remove_interface,
4256 .config = b43_op_config,
4257 .config_interface = b43_op_config_interface,
4258 .configure_filter = b43_op_configure_filter,
4259 .set_key = b43_op_set_key,
4260 .get_stats = b43_op_get_stats,
4261 .get_tx_stats = b43_op_get_tx_stats,
4262 .start = b43_op_start,
4263 .stop = b43_op_stop,
74cfdba7 4264 .set_retry_limit = b43_op_set_retry_limit,
e66fee6a 4265 .set_tim = b43_op_beacon_set_tim,
38968d09 4266 .sta_notify = b43_op_sta_notify,
e4d6b795
MB		 4267};
4268
4269/* Hard-reset the chip. Do not call this directly.
4270 * Use b43_controller_restart()
4271 */
4272static void b43_chip_reset(struct work_struct *work)
4273{
4274 struct b43_wldev *dev =
4275 container_of(work, struct b43_wldev, restart_work);
4276 struct b43_wl *wl = dev->wl;
4277 int err = 0;
4278 int prev_status;
4279
4280 mutex_lock(&wl->mutex);
4281
4282 prev_status = b43_status(dev);
4283 /* Bring the device down... */
4284 if (prev_status >= B43_STAT_STARTED)
4285 b43_wireless_core_stop(dev);
4286 if (prev_status >= B43_STAT_INITIALIZED)
4287 b43_wireless_core_exit(dev);
4288
4289 /* ...and up again. */
4290 if (prev_status >= B43_STAT_INITIALIZED) {
4291 err = b43_wireless_core_init(dev);
4292 if (err)
4293 goto out;
4294 }
4295 if (prev_status >= B43_STAT_STARTED) {
4296 err = b43_wireless_core_start(dev);
4297 if (err) {
4298 b43_wireless_core_exit(dev);
4299 goto out;
4300 }
4301 }
3bf0a32e
MB		 4302out:
4303 if (err)
4304 wl->current_dev = NULL; /* Failed to init the dev. */
e4d6b795
MB		 4305 mutex_unlock(&wl->mutex);
4306 if (err)
4307 b43err(wl, "Controller restart FAILED\n");
4308 else
4309 b43info(wl, "Controller restarted\n");
4310}
4311
bb1eeff1 4312static int b43_setup_bands(struct b43_wldev *dev,
96c755a3 4313 bool have_2ghz_phy, bool have_5ghz_phy)
e4d6b795
MB		 4314{
4315 struct ieee80211_hw *hw = dev->wl->hw;
e4d6b795 4316
bb1eeff1
MB		 4317 if (have_2ghz_phy)
4318 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz;
4319 if (dev->phy.type == B43_PHYTYPE_N) {
4320 if (have_5ghz_phy)
4321 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_nphy;
4322 } else {
4323 if (have_5ghz_phy)
4324 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy;
4325 }
96c755a3 4326
bb1eeff1
MB		 4327 dev->phy.supports_2ghz = have_2ghz_phy;
4328 dev->phy.supports_5ghz = have_5ghz_phy;
e4d6b795
MB		 4329
4330 return 0;
4331}
4332
4333static void b43_wireless_core_detach(struct b43_wldev *dev)
4334{
4335 /* We release firmware that late to not be required to re-request
4336 * is all the time when we reinit the core. */
4337 b43_release_firmware(dev);
4338}
4339
4340static int b43_wireless_core_attach(struct b43_wldev *dev)
4341{
4342 struct b43_wl *wl = dev->wl;
4343 struct ssb_bus *bus = dev->dev->bus;
4344 struct pci_dev *pdev = bus->host_pci;
4345 int err;
96c755a3 4346 bool have_2ghz_phy = 0, have_5ghz_phy = 0;
e4d6b795
MB		 4347 u32 tmp;
4348
4349 /* Do NOT do any device initialization here.
4350 * Do it in wireless_core_init() instead.
4351 * This function is for gathering basic information about the HW, only.
4352 * Also some structs may be set up here. But most likely you want to have
4353 * that in core_init(), too.
4354 */
4355
4356 err = ssb_bus_powerup(bus, 0);
4357 if (err) {
4358 b43err(wl, "Bus powerup failed\n");
4359 goto out;
4360 }
4361 /* Get the PHY type. */
4362 if (dev->dev->id.revision >= 5) {
4363 u32 tmshigh;
4364
4365 tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH);
96c755a3
MB		 4366 have_2ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY);
4367 have_5ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_5GHZ_PHY);
e4d6b795 4368 } else
96c755a3 4369 B43_WARN_ON(1);
e4d6b795 4370
96c755a3 4371 dev->phy.gmode = have_2ghz_phy;
e4d6b795
MB		 4372 tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
4373 b43_wireless_core_reset(dev, tmp);
4374
4375 err = b43_phy_versioning(dev);
4376 if (err)
21954c36 4377 goto err_powerdown;
e4d6b795
MB		 4378 /* Check if this device supports multiband. */
4379 if (!pdev ||
4380 (pdev->device != 0x4312 &&
4381 pdev->device != 0x4319 && pdev->device != 0x4324)) {
4382 /* No multiband support. */
96c755a3
MB		 4383 have_2ghz_phy = 0;
4384 have_5ghz_phy = 0;
e4d6b795
MB		 4385 switch (dev->phy.type) {
4386 case B43_PHYTYPE_A:
96c755a3 4387 have_5ghz_phy = 1;
e4d6b795
MB		 4388 break;
4389 case B43_PHYTYPE_G:
96c755a3
MB		 4390 case B43_PHYTYPE_N:
4391 have_2ghz_phy = 1;
e4d6b795
MB		 4392 break;
4393 default:
4394 B43_WARN_ON(1);
4395 }
4396 }
96c755a3
MB		 4397 if (dev->phy.type == B43_PHYTYPE_A) {
4398 /* FIXME */
4399 b43err(wl, "IEEE 802.11a devices are unsupported\n");
4400 err = -EOPNOTSUPP;
4401 goto err_powerdown;
4402 }
2e35af14
MB		 4403 if (1 /* disable A-PHY */) {
4404 /* FIXME: For now we disable the A-PHY on multi-PHY devices. */
4405 if (dev->phy.type != B43_PHYTYPE_N) {
4406 have_2ghz_phy = 1;
4407 have_5ghz_phy = 0;
4408 }
4409 }
4410
96c755a3 4411 dev->phy.gmode = have_2ghz_phy;
e4d6b795
MB		 4412 tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
4413 b43_wireless_core_reset(dev, tmp);
4414
4415 err = b43_validate_chipaccess(dev);
4416 if (err)
21954c36 4417 goto err_powerdown;
bb1eeff1 4418 err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy);
e4d6b795 4419 if (err)
21954c36 4420 goto err_powerdown;
e4d6b795
MB		 4421
4422 /* Now set some default "current_dev" */
4423 if (!wl->current_dev)
4424 wl->current_dev = dev;
4425 INIT_WORK(&dev->restart_work, b43_chip_reset);
4426
e4d6b795
MB		 4427 b43_switch_analog(dev, 0);
4428 ssb_device_disable(dev->dev, 0);
4429 ssb_bus_may_powerdown(bus);
4430
4431out:
4432 return err;
4433
e4d6b795
MB		 4434err_powerdown:
4435 ssb_bus_may_powerdown(bus);
4436 return err;
4437}
4438
4439static void b43_one_core_detach(struct ssb_device *dev)
4440{
4441 struct b43_wldev *wldev;
4442 struct b43_wl *wl;
4443
3bf0a32e
MB		 4444 /* Do not cancel ieee80211-workqueue based work here.
4445 * See comment in b43_remove(). */
4446
e4d6b795
MB		 4447 wldev = ssb_get_drvdata(dev);
4448 wl = wldev->wl;
e4d6b795
MB		 4449 b43_debugfs_remove_device(wldev);
4450 b43_wireless_core_detach(wldev);
4451 list_del(&wldev->list);
4452 wl->nr_devs--;
4453 ssb_set_drvdata(dev, NULL);
4454 kfree(wldev);
4455}
4456
4457static int b43_one_core_attach(struct ssb_device *dev, struct b43_wl *wl)
4458{
4459 struct b43_wldev *wldev;
4460 struct pci_dev *pdev;
4461 int err = -ENOMEM;
4462
4463 if (!list_empty(&wl->devlist)) {
4464 /* We are not the first core on this chip. */
4465 pdev = dev->bus->host_pci;
4466 /* Only special chips support more than one wireless
4467 * core, although some of the other chips have more than
4468 * one wireless core as well. Check for this and
4469 * bail out early.
4470 */
4471 if (!pdev ||
4472 ((pdev->device != 0x4321) &&
4473 (pdev->device != 0x4313) && (pdev->device != 0x431A))) {
4474 b43dbg(wl, "Ignoring unconnected 802.11 core\n");
4475 return -ENODEV;
4476 }
4477 }
4478
4479 wldev = kzalloc(sizeof(*wldev), GFP_KERNEL);
4480 if (!wldev)
4481 goto out;
4482
4483 wldev->dev = dev;
4484 wldev->wl = wl;
4485 b43_set_status(wldev, B43_STAT_UNINIT);
4486 wldev->bad_frames_preempt = modparam_bad_frames_preempt;
4487 tasklet_init(&wldev->isr_tasklet,
4488 (void (*)(unsigned long))b43_interrupt_tasklet,
4489 (unsigned long)wldev);
e4d6b795
MB		 4490 INIT_LIST_HEAD(&wldev->list);
4491
4492 err = b43_wireless_core_attach(wldev);
4493 if (err)
4494 goto err_kfree_wldev;
4495
4496 list_add(&wldev->list, &wl->devlist);
4497 wl->nr_devs++;
4498 ssb_set_drvdata(dev, wldev);
4499 b43_debugfs_add_device(wldev);
4500
4501 out:
4502 return err;
4503
4504 err_kfree_wldev:
4505 kfree(wldev);
4506 return err;
4507}
4508
9fc38458
MB		 4509#define IS_PDEV(pdev, _vendor, _device, _subvendor, _subdevice) ( \
4510 (pdev->vendor == PCI_VENDOR_ID_##_vendor) && \
4511 (pdev->device == _device) && \
4512 (pdev->subsystem_vendor == PCI_VENDOR_ID_##_subvendor) && \
4513 (pdev->subsystem_device == _subdevice) )
4514
e4d6b795
MB		 4515static void b43_sprom_fixup(struct ssb_bus *bus)
4516{
1855ba78
MB		 4517 struct pci_dev *pdev;
4518
e4d6b795
MB		 4519 /* boardflags workarounds */
4520 if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL &&
4521 bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74)
95de2841 4522 bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST;
e4d6b795
MB		 4523 if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE &&
4524 bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40)
95de2841 4525 bus->sprom.boardflags_lo |= B43_BFL_PACTRL;
1855ba78
MB		 4526 if (bus->bustype == SSB_BUSTYPE_PCI) {
4527 pdev = bus->host_pci;
9fc38458 4528 if (IS_PDEV(pdev, BROADCOM, 0x4318, ASUSTEK, 0x100F) ||
430cd47f 4529 IS_PDEV(pdev, BROADCOM, 0x4320, DELL, 0x0003) ||
9fc38458 4530 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0015) ||
a58d4522 4531 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0014) ||
9fc38458 4532 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0013))
1855ba78
MB		 4533 bus->sprom.boardflags_lo &= ~B43_BFL_BTCOEXIST;
4534 }
e4d6b795
MB		 4535}
4536
4537static void b43_wireless_exit(struct ssb_device *dev, struct b43_wl *wl)
4538{
4539 struct ieee80211_hw *hw = wl->hw;
4540
4541 ssb_set_devtypedata(dev, NULL);
4542 ieee80211_free_hw(hw);
4543}
4544
4545static int b43_wireless_init(struct ssb_device *dev)
4546{
4547 struct ssb_sprom *sprom = &dev->bus->sprom;
4548 struct ieee80211_hw *hw;
4549 struct b43_wl *wl;
4550 int err = -ENOMEM;
4551
4552 b43_sprom_fixup(dev->bus);
4553
4554 hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops);
4555 if (!hw) {
4556 b43err(NULL, "Could not allocate ieee80211 device\n");
4557 goto out;
4558 }
4559
4560 /* fill hw info */
605a0bd6 4561 hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
566bfe5a
BR		 4562 IEEE80211_HW_SIGNAL_DBM |
4563 IEEE80211_HW_NOISE_DBM;
4564
e6f5b934 4565 hw->queues = b43_modparam_qos ? 4 : 1;
e4d6b795 4566 SET_IEEE80211_DEV(hw, dev->dev);
95de2841
LF		 4567 if (is_valid_ether_addr(sprom->et1mac))
4568 SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
e4d6b795 4569 else
95de2841 4570 SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac);
e4d6b795
MB		 4571
4572 /* Get and initialize struct b43_wl */
4573 wl = hw_to_b43_wl(hw);
4574 memset(wl, 0, sizeof(*wl));
4575 wl->hw = hw;
4576 spin_lock_init(&wl->irq_lock);
21a75d77 4577 rwlock_init(&wl->tx_lock);
e4d6b795 4578 spin_lock_init(&wl->leds_lock);
280d0e16 4579 spin_lock_init(&wl->shm_lock);
e4d6b795
MB		 4580 mutex_init(&wl->mutex);
4581 INIT_LIST_HEAD(&wl->devlist);
e6f5b934 4582 INIT_WORK(&wl->qos_update_work, b43_qos_update_work);
a82d9922 4583 INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work);
e4d6b795
MB		 4584
4585 ssb_set_devtypedata(dev, wl);
4586 b43info(wl, "Broadcom %04X WLAN found\n", dev->bus->chip_id);
4587 err = 0;
4588 out:
4589 return err;
4590}
4591
4592static int b43_probe(struct ssb_device *dev, const struct ssb_device_id *id)
4593{
4594 struct b43_wl *wl;
4595 int err;
4596 int first = 0;
4597
4598 wl = ssb_get_devtypedata(dev);
4599 if (!wl) {
4600 /* Probing the first core. Must setup common struct b43_wl */
4601 first = 1;
4602 err = b43_wireless_init(dev);
4603 if (err)
4604 goto out;
4605 wl = ssb_get_devtypedata(dev);
4606 B43_WARN_ON(!wl);
4607 }
4608 err = b43_one_core_attach(dev, wl);
4609 if (err)
4610 goto err_wireless_exit;
4611
4612 if (first) {
4613 err = ieee80211_register_hw(wl->hw);
4614 if (err)
4615 goto err_one_core_detach;
4616 }
4617
4618 out:
4619 return err;
4620
4621 err_one_core_detach:
4622 b43_one_core_detach(dev);
4623 err_wireless_exit:
4624 if (first)
4625 b43_wireless_exit(dev, wl);
4626 return err;
4627}
4628
4629static void b43_remove(struct ssb_device *dev)
4630{
4631 struct b43_wl *wl = ssb_get_devtypedata(dev);
4632 struct b43_wldev *wldev = ssb_get_drvdata(dev);
4633
3bf0a32e
MB		 4634 /* We must cancel any work here before unregistering from ieee80211,
4635 * as the ieee80211 unreg will destroy the workqueue. */
4636 cancel_work_sync(&wldev->restart_work);
4637
e4d6b795
MB		 4638 B43_WARN_ON(!wl);
4639 if (wl->current_dev == wldev)
4640 ieee80211_unregister_hw(wl->hw);
4641
4642 b43_one_core_detach(dev);
4643
4644 if (list_empty(&wl->devlist)) {
4645 /* Last core on the chip unregistered.
4646 * We can destroy common struct b43_wl.
4647 */
4648 b43_wireless_exit(dev, wl);
4649 }
4650}
4651
4652/* Perform a hardware reset. This can be called from any context. */
4653void b43_controller_restart(struct b43_wldev *dev, const char *reason)
4654{
4655 /* Must avoid requeueing, if we are in shutdown. */
4656 if (b43_status(dev) < B43_STAT_INITIALIZED)
4657 return;
4658 b43info(dev->wl, "Controller RESET (%s) ...\n", reason);
4659 queue_work(dev->wl->hw->workqueue, &dev->restart_work);
4660}
4661
4662#ifdef CONFIG_PM
4663
4664static int b43_suspend(struct ssb_device *dev, pm_message_t state)
4665{
4666 struct b43_wldev *wldev = ssb_get_drvdata(dev);
4667 struct b43_wl *wl = wldev->wl;
4668
4669 b43dbg(wl, "Suspending...\n");
4670
4671 mutex_lock(&wl->mutex);
3506e0c4 4672 wldev->suspend_in_progress = true;
e4d6b795
MB		 4673 wldev->suspend_init_status = b43_status(wldev);
4674 if (wldev->suspend_init_status >= B43_STAT_STARTED)
4675 b43_wireless_core_stop(wldev);
4676 if (wldev->suspend_init_status >= B43_STAT_INITIALIZED)
4677 b43_wireless_core_exit(wldev);
4678 mutex_unlock(&wl->mutex);
4679
4680 b43dbg(wl, "Device suspended.\n");
4681
4682 return 0;
4683}
4684
4685static int b43_resume(struct ssb_device *dev)
4686{
4687 struct b43_wldev *wldev = ssb_get_drvdata(dev);
4688 struct b43_wl *wl = wldev->wl;
4689 int err = 0;
4690
4691 b43dbg(wl, "Resuming...\n");
4692
4693 mutex_lock(&wl->mutex);
4694 if (wldev->suspend_init_status >= B43_STAT_INITIALIZED) {
4695 err = b43_wireless_core_init(wldev);
4696 if (err) {
4697 b43err(wl, "Resume failed at core init\n");
4698 goto out;
4699 }
4700 }
4701 if (wldev->suspend_init_status >= B43_STAT_STARTED) {
4702 err = b43_wireless_core_start(wldev);
4703 if (err) {
3506e0c4 4704 b43_leds_exit(wldev);
b844eba2 4705 b43_rng_exit(wldev->wl);
e4d6b795
MB		 4706 b43_wireless_core_exit(wldev);
4707 b43err(wl, "Resume failed at core start\n");
4708 goto out;
4709 }
4710 }
e4d6b795 4711 b43dbg(wl, "Device resumed.\n");
3506e0c4
RW		 4712 out:
4713 wldev->suspend_in_progress = false;
4714 mutex_unlock(&wl->mutex);
e4d6b795
MB		 4715 return err;
4716}
4717
4718#else /* CONFIG_PM */
4719# define b43_suspend NULL
4720# define b43_resume NULL
4721#endif /* CONFIG_PM */
4722
4723static struct ssb_driver b43_ssb_driver = {
4724 .name = KBUILD_MODNAME,
4725 .id_table = b43_ssb_tbl,
4726 .probe = b43_probe,
4727 .remove = b43_remove,
4728 .suspend = b43_suspend,
4729 .resume = b43_resume,
4730};
4731
26bc783f
MB		 4732static void b43_print_driverinfo(void)
4733{
4734 const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "",
4735 *feat_leds = "", *feat_rfkill = "";
4736
4737#ifdef CONFIG_B43_PCI_AUTOSELECT
4738 feat_pci = "P";
4739#endif
4740#ifdef CONFIG_B43_PCMCIA
4741 feat_pcmcia = "M";
4742#endif
4743#ifdef CONFIG_B43_NPHY
4744 feat_nphy = "N";
4745#endif
4746#ifdef CONFIG_B43_LEDS
4747 feat_leds = "L";
4748#endif
4749#ifdef CONFIG_B43_RFKILL
4750 feat_rfkill = "R";
4751#endif
4752 printk(KERN_INFO "Broadcom 43xx driver loaded "
4753 "[ Features: %s%s%s%s%s, Firmware-ID: "
4754 B43_SUPPORTED_FIRMWARE_ID " ]\n",
4755 feat_pci, feat_pcmcia, feat_nphy,
4756 feat_leds, feat_rfkill);
4757}
4758
e4d6b795
MB		 4759static int __init b43_init(void)
4760{
4761 int err;
4762
4763 b43_debugfs_init();
4764 err = b43_pcmcia_init();
4765 if (err)
4766 goto err_dfs_exit;
4767 err = ssb_driver_register(&b43_ssb_driver);
4768 if (err)
4769 goto err_pcmcia_exit;
26bc783f 4770 b43_print_driverinfo();
e4d6b795
MB		 4771
4772 return err;
4773
4774err_pcmcia_exit:
4775 b43_pcmcia_exit();
4776err_dfs_exit:
4777 b43_debugfs_exit();
4778 return err;
4779}
4780
4781static void __exit b43_exit(void)
4782{
4783 ssb_driver_unregister(&b43_ssb_driver);
4784 b43_pcmcia_exit();
4785 b43_debugfs_exit();
4786}
4787
4788module_init(b43_init)
4789module_exit(b43_exit)
Linux kernel - Deliverables
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