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Michael Buesche4d6b792007-09-18 15:39:42 -04001/*
2
3 Broadcom B43 wireless driver
4
5 Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>
Stefano Brivio1f21ad22007-11-06 22:49:20 +01006 Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it>
Michael Buesch060210f2009-01-25 15:49:59 +01007 Copyright (c) 2005-2009 Michael Buesch <mb@bu3sch.de>
Michael Buesche4d6b792007-09-18 15:39:42 -04008 Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
9 Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
10
Albert Herranz3dbba8e2009-09-10 19:34:49 +020011 SDIO support
12 Copyright (c) 2009 Albert Herranz <albert_herranz@yahoo.es>
13
Michael Buesche4d6b792007-09-18 15:39:42 -040014 Some parts of the code in this file are derived from the ipw2200
15 driver Copyright(c) 2003 - 2004 Intel Corporation.
16
17 This program is free software; you can redistribute it and/or modify
18 it under the terms of the GNU General Public License as published by
19 the Free Software Foundation; either version 2 of the License, or
20 (at your option) any later version.
21
22 This program is distributed in the hope that it will be useful,
23 but WITHOUT ANY WARRANTY; without even the implied warranty of
24 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 GNU General Public License for more details.
26
27 You should have received a copy of the GNU General Public License
28 along with this program; see the file COPYING. If not, write to
29 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
30 Boston, MA 02110-1301, USA.
31
32*/
33
34#include <linux/delay.h>
35#include <linux/init.h>
36#include <linux/moduleparam.h>
37#include <linux/if_arp.h>
38#include <linux/etherdevice.h>
Michael Buesche4d6b792007-09-18 15:39:42 -040039#include <linux/firmware.h>
40#include <linux/wireless.h>
41#include <linux/workqueue.h>
42#include <linux/skbuff.h>
Andrew Morton96cf49a2008-02-04 22:27:19 -080043#include <linux/io.h>
Michael Buesche4d6b792007-09-18 15:39:42 -040044#include <linux/dma-mapping.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090045#include <linux/slab.h>
Michael Buesche4d6b792007-09-18 15:39:42 -040046#include <asm/unaligned.h>
47
48#include "b43.h"
49#include "main.h"
50#include "debugfs.h"
Michael Bueschef1a6282008-08-27 18:53:02 +020051#include "phy_common.h"
52#include "phy_g.h"
Michael Buesch3d0da752008-08-30 02:27:19 +020053#include "phy_n.h"
Michael Buesche4d6b792007-09-18 15:39:42 -040054#include "dma.h"
Michael Buesch5100d5a2008-03-29 21:01:16 +010055#include "pio.h"
Michael Buesche4d6b792007-09-18 15:39:42 -040056#include "sysfs.h"
57#include "xmit.h"
Michael Buesche4d6b792007-09-18 15:39:42 -040058#include "lo.h"
59#include "pcmcia.h"
Albert Herranz3dbba8e2009-09-10 19:34:49 +020060#include "sdio.h"
61#include <linux/mmc/sdio_func.h>
Michael Buesche4d6b792007-09-18 15:39:42 -040062
63MODULE_DESCRIPTION("Broadcom B43 wireless driver");
64MODULE_AUTHOR("Martin Langer");
65MODULE_AUTHOR("Stefano Brivio");
66MODULE_AUTHOR("Michael Buesch");
Gábor Stefanik0136e512009-08-28 22:32:17 +020067MODULE_AUTHOR("Gábor Stefanik");
Michael Buesche4d6b792007-09-18 15:39:42 -040068MODULE_LICENSE("GPL");
69
Michael Buesch9c7d99d2008-02-09 10:23:49 +010070MODULE_FIRMWARE(B43_SUPPORTED_FIRMWARE_ID);
Tim Gardner6021e082010-01-07 11:10:38 -070071MODULE_FIRMWARE("b43/ucode11.fw");
72MODULE_FIRMWARE("b43/ucode13.fw");
73MODULE_FIRMWARE("b43/ucode14.fw");
74MODULE_FIRMWARE("b43/ucode15.fw");
Rafał Miłeckif6158392011-04-19 22:49:29 +020075MODULE_FIRMWARE("b43/ucode16_mimo.fw");
Tim Gardner6021e082010-01-07 11:10:38 -070076MODULE_FIRMWARE("b43/ucode5.fw");
77MODULE_FIRMWARE("b43/ucode9.fw");
Michael Buesche4d6b792007-09-18 15:39:42 -040078
79static int modparam_bad_frames_preempt;
80module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444);
81MODULE_PARM_DESC(bad_frames_preempt,
82 "enable(1) / disable(0) Bad Frames Preemption");
83
Michael Buesche4d6b792007-09-18 15:39:42 -040084static char modparam_fwpostfix[16];
85module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444);
86MODULE_PARM_DESC(fwpostfix, "Postfix for the .fw files to load.");
87
Michael Buesche4d6b792007-09-18 15:39:42 -040088static int modparam_hwpctl;
89module_param_named(hwpctl, modparam_hwpctl, int, 0444);
90MODULE_PARM_DESC(hwpctl, "Enable hardware-side power control (default off)");
91
92static int modparam_nohwcrypt;
93module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444);
94MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
95
gregor kowski035d0242009-08-19 22:35:45 +020096static int modparam_hwtkip;
97module_param_named(hwtkip, modparam_hwtkip, int, 0444);
98MODULE_PARM_DESC(hwtkip, "Enable hardware tkip.");
99
Michael Buesch403a3a12009-06-08 21:04:57 +0200100static int modparam_qos = 1;
101module_param_named(qos, modparam_qos, int, 0444);
Michael Buesche6f5b932008-03-05 21:18:49 +0100102MODULE_PARM_DESC(qos, "Enable QOS support (default on)");
103
Michael Buesch1855ba72008-04-18 20:51:41 +0200104static int modparam_btcoex = 1;
105module_param_named(btcoex, modparam_btcoex, int, 0444);
Gábor Stefanikc71dbd32009-08-28 22:34:21 +0200106MODULE_PARM_DESC(btcoex, "Enable Bluetooth coexistence (default on)");
Michael Buesch1855ba72008-04-18 20:51:41 +0200107
Michael Buesch060210f2009-01-25 15:49:59 +0100108int b43_modparam_verbose = B43_VERBOSITY_DEFAULT;
109module_param_named(verbose, b43_modparam_verbose, int, 0644);
110MODULE_PARM_DESC(verbose, "Log message verbosity: 0=error, 1=warn, 2=info(default), 3=debug");
111
John W. Linville41950bd2010-07-21 11:37:19 -0400112static int b43_modparam_pio = B43_PIO_DEFAULT;
Linus Torvalds9e3bd912010-02-26 10:34:27 -0800113module_param_named(pio, b43_modparam_pio, int, 0644);
114MODULE_PARM_DESC(pio, "Use PIO accesses by default: 0=DMA, 1=PIO");
Michael Buesche6f5b932008-03-05 21:18:49 +0100115
Michael Buesche4d6b792007-09-18 15:39:42 -0400116static const struct ssb_device_id b43_ssb_tbl[] = {
117 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5),
118 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6),
119 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7),
120 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9),
121 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10),
Michael Bueschd5c71e42008-01-04 17:06:29 +0100122 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11),
Rafał Miłecki003d6d22010-01-15 12:10:53 +0100123 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 12),
Larry Finger013978b2007-11-26 10:29:47 -0600124 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13),
Michael Buesch6b1c7c62008-12-25 00:39:28 +0100125 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 15),
Johannes Berg92d61282008-12-24 12:44:09 +0100126 SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 16),
Michael Buesche4d6b792007-09-18 15:39:42 -0400127 SSB_DEVTABLE_END
128};
129
130MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl);
131
132/* Channel and ratetables are shared for all devices.
133 * They can't be const, because ieee80211 puts some precalculated
134 * data in there. This data is the same for all devices, so we don't
135 * get concurrency issues */
136#define RATETAB_ENT(_rateid, _flags) \
Johannes Berg8318d782008-01-24 19:38:38 +0100137 { \
138 .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \
139 .hw_value = (_rateid), \
140 .flags = (_flags), \
Michael Buesche4d6b792007-09-18 15:39:42 -0400141 }
Johannes Berg8318d782008-01-24 19:38:38 +0100142
143/*
144 * NOTE: When changing this, sync with xmit.c's
145 * b43_plcp_get_bitrate_idx_* functions!
146 */
Michael Buesche4d6b792007-09-18 15:39:42 -0400147static struct ieee80211_rate __b43_ratetable[] = {
Johannes Berg8318d782008-01-24 19:38:38 +0100148 RATETAB_ENT(B43_CCK_RATE_1MB, 0),
149 RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE),
150 RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE),
151 RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE),
152 RATETAB_ENT(B43_OFDM_RATE_6MB, 0),
153 RATETAB_ENT(B43_OFDM_RATE_9MB, 0),
154 RATETAB_ENT(B43_OFDM_RATE_12MB, 0),
155 RATETAB_ENT(B43_OFDM_RATE_18MB, 0),
156 RATETAB_ENT(B43_OFDM_RATE_24MB, 0),
157 RATETAB_ENT(B43_OFDM_RATE_36MB, 0),
158 RATETAB_ENT(B43_OFDM_RATE_48MB, 0),
159 RATETAB_ENT(B43_OFDM_RATE_54MB, 0),
Michael Buesche4d6b792007-09-18 15:39:42 -0400160};
161
162#define b43_a_ratetable (__b43_ratetable + 4)
163#define b43_a_ratetable_size 8
164#define b43_b_ratetable (__b43_ratetable + 0)
165#define b43_b_ratetable_size 4
166#define b43_g_ratetable (__b43_ratetable + 0)
167#define b43_g_ratetable_size 12
168
Michael Bueschbb1eeff2008-02-09 12:08:58 +0100169#define CHAN4G(_channel, _freq, _flags) { \
170 .band = IEEE80211_BAND_2GHZ, \
171 .center_freq = (_freq), \
172 .hw_value = (_channel), \
173 .flags = (_flags), \
174 .max_antenna_gain = 0, \
175 .max_power = 30, \
176}
Michael Buesch96c755a2008-01-06 00:09:46 +0100177static struct ieee80211_channel b43_2ghz_chantable[] = {
Michael Bueschbb1eeff2008-02-09 12:08:58 +0100178 CHAN4G(1, 2412, 0),
179 CHAN4G(2, 2417, 0),
180 CHAN4G(3, 2422, 0),
181 CHAN4G(4, 2427, 0),
182 CHAN4G(5, 2432, 0),
183 CHAN4G(6, 2437, 0),
184 CHAN4G(7, 2442, 0),
185 CHAN4G(8, 2447, 0),
186 CHAN4G(9, 2452, 0),
187 CHAN4G(10, 2457, 0),
188 CHAN4G(11, 2462, 0),
189 CHAN4G(12, 2467, 0),
190 CHAN4G(13, 2472, 0),
191 CHAN4G(14, 2484, 0),
192};
193#undef CHAN4G
194
195#define CHAN5G(_channel, _flags) { \
196 .band = IEEE80211_BAND_5GHZ, \
197 .center_freq = 5000 + (5 * (_channel)), \
198 .hw_value = (_channel), \
199 .flags = (_flags), \
200 .max_antenna_gain = 0, \
201 .max_power = 30, \
202}
203static struct ieee80211_channel b43_5ghz_nphy_chantable[] = {
204 CHAN5G(32, 0), CHAN5G(34, 0),
205 CHAN5G(36, 0), CHAN5G(38, 0),
206 CHAN5G(40, 0), CHAN5G(42, 0),
207 CHAN5G(44, 0), CHAN5G(46, 0),
208 CHAN5G(48, 0), CHAN5G(50, 0),
209 CHAN5G(52, 0), CHAN5G(54, 0),
210 CHAN5G(56, 0), CHAN5G(58, 0),
211 CHAN5G(60, 0), CHAN5G(62, 0),
212 CHAN5G(64, 0), CHAN5G(66, 0),
213 CHAN5G(68, 0), CHAN5G(70, 0),
214 CHAN5G(72, 0), CHAN5G(74, 0),
215 CHAN5G(76, 0), CHAN5G(78, 0),
216 CHAN5G(80, 0), CHAN5G(82, 0),
217 CHAN5G(84, 0), CHAN5G(86, 0),
218 CHAN5G(88, 0), CHAN5G(90, 0),
219 CHAN5G(92, 0), CHAN5G(94, 0),
220 CHAN5G(96, 0), CHAN5G(98, 0),
221 CHAN5G(100, 0), CHAN5G(102, 0),
222 CHAN5G(104, 0), CHAN5G(106, 0),
223 CHAN5G(108, 0), CHAN5G(110, 0),
224 CHAN5G(112, 0), CHAN5G(114, 0),
225 CHAN5G(116, 0), CHAN5G(118, 0),
226 CHAN5G(120, 0), CHAN5G(122, 0),
227 CHAN5G(124, 0), CHAN5G(126, 0),
228 CHAN5G(128, 0), CHAN5G(130, 0),
229 CHAN5G(132, 0), CHAN5G(134, 0),
230 CHAN5G(136, 0), CHAN5G(138, 0),
231 CHAN5G(140, 0), CHAN5G(142, 0),
232 CHAN5G(144, 0), CHAN5G(145, 0),
233 CHAN5G(146, 0), CHAN5G(147, 0),
234 CHAN5G(148, 0), CHAN5G(149, 0),
235 CHAN5G(150, 0), CHAN5G(151, 0),
236 CHAN5G(152, 0), CHAN5G(153, 0),
237 CHAN5G(154, 0), CHAN5G(155, 0),
238 CHAN5G(156, 0), CHAN5G(157, 0),
239 CHAN5G(158, 0), CHAN5G(159, 0),
240 CHAN5G(160, 0), CHAN5G(161, 0),
241 CHAN5G(162, 0), CHAN5G(163, 0),
242 CHAN5G(164, 0), CHAN5G(165, 0),
243 CHAN5G(166, 0), CHAN5G(168, 0),
244 CHAN5G(170, 0), CHAN5G(172, 0),
245 CHAN5G(174, 0), CHAN5G(176, 0),
246 CHAN5G(178, 0), CHAN5G(180, 0),
247 CHAN5G(182, 0), CHAN5G(184, 0),
248 CHAN5G(186, 0), CHAN5G(188, 0),
249 CHAN5G(190, 0), CHAN5G(192, 0),
250 CHAN5G(194, 0), CHAN5G(196, 0),
251 CHAN5G(198, 0), CHAN5G(200, 0),
252 CHAN5G(202, 0), CHAN5G(204, 0),
253 CHAN5G(206, 0), CHAN5G(208, 0),
254 CHAN5G(210, 0), CHAN5G(212, 0),
255 CHAN5G(214, 0), CHAN5G(216, 0),
256 CHAN5G(218, 0), CHAN5G(220, 0),
257 CHAN5G(222, 0), CHAN5G(224, 0),
258 CHAN5G(226, 0), CHAN5G(228, 0),
Michael Buesche4d6b792007-09-18 15:39:42 -0400259};
260
Michael Bueschbb1eeff2008-02-09 12:08:58 +0100261static struct ieee80211_channel b43_5ghz_aphy_chantable[] = {
262 CHAN5G(34, 0), CHAN5G(36, 0),
263 CHAN5G(38, 0), CHAN5G(40, 0),
264 CHAN5G(42, 0), CHAN5G(44, 0),
265 CHAN5G(46, 0), CHAN5G(48, 0),
266 CHAN5G(52, 0), CHAN5G(56, 0),
267 CHAN5G(60, 0), CHAN5G(64, 0),
268 CHAN5G(100, 0), CHAN5G(104, 0),
269 CHAN5G(108, 0), CHAN5G(112, 0),
270 CHAN5G(116, 0), CHAN5G(120, 0),
271 CHAN5G(124, 0), CHAN5G(128, 0),
272 CHAN5G(132, 0), CHAN5G(136, 0),
273 CHAN5G(140, 0), CHAN5G(149, 0),
274 CHAN5G(153, 0), CHAN5G(157, 0),
275 CHAN5G(161, 0), CHAN5G(165, 0),
276 CHAN5G(184, 0), CHAN5G(188, 0),
277 CHAN5G(192, 0), CHAN5G(196, 0),
278 CHAN5G(200, 0), CHAN5G(204, 0),
279 CHAN5G(208, 0), CHAN5G(212, 0),
280 CHAN5G(216, 0),
281};
282#undef CHAN5G
283
284static struct ieee80211_supported_band b43_band_5GHz_nphy = {
285 .band = IEEE80211_BAND_5GHZ,
286 .channels = b43_5ghz_nphy_chantable,
287 .n_channels = ARRAY_SIZE(b43_5ghz_nphy_chantable),
288 .bitrates = b43_a_ratetable,
289 .n_bitrates = b43_a_ratetable_size,
Michael Buesche4d6b792007-09-18 15:39:42 -0400290};
Johannes Berg8318d782008-01-24 19:38:38 +0100291
Michael Bueschbb1eeff2008-02-09 12:08:58 +0100292static struct ieee80211_supported_band b43_band_5GHz_aphy = {
293 .band = IEEE80211_BAND_5GHZ,
294 .channels = b43_5ghz_aphy_chantable,
295 .n_channels = ARRAY_SIZE(b43_5ghz_aphy_chantable),
296 .bitrates = b43_a_ratetable,
297 .n_bitrates = b43_a_ratetable_size,
Johannes Berg8318d782008-01-24 19:38:38 +0100298};
Michael Buesche4d6b792007-09-18 15:39:42 -0400299
Johannes Berg8318d782008-01-24 19:38:38 +0100300static struct ieee80211_supported_band b43_band_2GHz = {
Michael Bueschbb1eeff2008-02-09 12:08:58 +0100301 .band = IEEE80211_BAND_2GHZ,
302 .channels = b43_2ghz_chantable,
303 .n_channels = ARRAY_SIZE(b43_2ghz_chantable),
304 .bitrates = b43_g_ratetable,
305 .n_bitrates = b43_g_ratetable_size,
Johannes Berg8318d782008-01-24 19:38:38 +0100306};
307
Michael Buesche4d6b792007-09-18 15:39:42 -0400308static void b43_wireless_core_exit(struct b43_wldev *dev);
309static int b43_wireless_core_init(struct b43_wldev *dev);
Michael Buesch36dbd952009-09-04 22:51:29 +0200310static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev);
Michael Buesche4d6b792007-09-18 15:39:42 -0400311static int b43_wireless_core_start(struct b43_wldev *dev);
312
313static int b43_ratelimit(struct b43_wl *wl)
314{
315 if (!wl || !wl->current_dev)
316 return 1;
317 if (b43_status(wl->current_dev) < B43_STAT_STARTED)
318 return 1;
319 /* We are up and running.
320 * Ratelimit the messages to avoid DoS over the net. */
321 return net_ratelimit();
322}
323
324void b43info(struct b43_wl *wl, const char *fmt, ...)
325{
Joe Perches5b736d42010-11-09 16:35:18 -0800326 struct va_format vaf;
Michael Buesche4d6b792007-09-18 15:39:42 -0400327 va_list args;
328
Michael Buesch060210f2009-01-25 15:49:59 +0100329 if (b43_modparam_verbose < B43_VERBOSITY_INFO)
330 return;
Michael Buesche4d6b792007-09-18 15:39:42 -0400331 if (!b43_ratelimit(wl))
332 return;
Joe Perches5b736d42010-11-09 16:35:18 -0800333
Michael Buesche4d6b792007-09-18 15:39:42 -0400334 va_start(args, fmt);
Joe Perches5b736d42010-11-09 16:35:18 -0800335
336 vaf.fmt = fmt;
337 vaf.va = &args;
338
339 printk(KERN_INFO "b43-%s: %pV",
340 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
341
Michael Buesche4d6b792007-09-18 15:39:42 -0400342 va_end(args);
343}
344
345void b43err(struct b43_wl *wl, const char *fmt, ...)
346{
Joe Perches5b736d42010-11-09 16:35:18 -0800347 struct va_format vaf;
Michael Buesche4d6b792007-09-18 15:39:42 -0400348 va_list args;
349
Michael Buesch060210f2009-01-25 15:49:59 +0100350 if (b43_modparam_verbose < B43_VERBOSITY_ERROR)
351 return;
Michael Buesche4d6b792007-09-18 15:39:42 -0400352 if (!b43_ratelimit(wl))
353 return;
Joe Perches5b736d42010-11-09 16:35:18 -0800354
Michael Buesche4d6b792007-09-18 15:39:42 -0400355 va_start(args, fmt);
Joe Perches5b736d42010-11-09 16:35:18 -0800356
357 vaf.fmt = fmt;
358 vaf.va = &args;
359
360 printk(KERN_ERR "b43-%s ERROR: %pV",
361 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
362
Michael Buesche4d6b792007-09-18 15:39:42 -0400363 va_end(args);
364}
365
366void b43warn(struct b43_wl *wl, const char *fmt, ...)
367{
Joe Perches5b736d42010-11-09 16:35:18 -0800368 struct va_format vaf;
Michael Buesche4d6b792007-09-18 15:39:42 -0400369 va_list args;
370
Michael Buesch060210f2009-01-25 15:49:59 +0100371 if (b43_modparam_verbose < B43_VERBOSITY_WARN)
372 return;
Michael Buesche4d6b792007-09-18 15:39:42 -0400373 if (!b43_ratelimit(wl))
374 return;
Joe Perches5b736d42010-11-09 16:35:18 -0800375
Michael Buesche4d6b792007-09-18 15:39:42 -0400376 va_start(args, fmt);
Joe Perches5b736d42010-11-09 16:35:18 -0800377
378 vaf.fmt = fmt;
379 vaf.va = &args;
380
381 printk(KERN_WARNING "b43-%s warning: %pV",
382 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
383
Michael Buesche4d6b792007-09-18 15:39:42 -0400384 va_end(args);
385}
386
Michael Buesche4d6b792007-09-18 15:39:42 -0400387void b43dbg(struct b43_wl *wl, const char *fmt, ...)
388{
Joe Perches5b736d42010-11-09 16:35:18 -0800389 struct va_format vaf;
Michael Buesche4d6b792007-09-18 15:39:42 -0400390 va_list args;
391
Michael Buesch060210f2009-01-25 15:49:59 +0100392 if (b43_modparam_verbose < B43_VERBOSITY_DEBUG)
393 return;
Joe Perches5b736d42010-11-09 16:35:18 -0800394
Michael Buesche4d6b792007-09-18 15:39:42 -0400395 va_start(args, fmt);
Joe Perches5b736d42010-11-09 16:35:18 -0800396
397 vaf.fmt = fmt;
398 vaf.va = &args;
399
400 printk(KERN_DEBUG "b43-%s debug: %pV",
401 (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan", &vaf);
402
Michael Buesche4d6b792007-09-18 15:39:42 -0400403 va_end(args);
404}
Michael Buesche4d6b792007-09-18 15:39:42 -0400405
406static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val)
407{
408 u32 macctl;
409
410 B43_WARN_ON(offset % 4 != 0);
411
412 macctl = b43_read32(dev, B43_MMIO_MACCTL);
413 if (macctl & B43_MACCTL_BE)
414 val = swab32(val);
415
416 b43_write32(dev, B43_MMIO_RAM_CONTROL, offset);
417 mmiowb();
418 b43_write32(dev, B43_MMIO_RAM_DATA, val);
419}
420
Michael Buesch280d0e12007-12-26 18:26:17 +0100421static inline void b43_shm_control_word(struct b43_wldev *dev,
422 u16 routing, u16 offset)
Michael Buesche4d6b792007-09-18 15:39:42 -0400423{
424 u32 control;
425
426 /* "offset" is the WORD offset. */
Michael Buesche4d6b792007-09-18 15:39:42 -0400427 control = routing;
428 control <<= 16;
429 control |= offset;
430 b43_write32(dev, B43_MMIO_SHM_CONTROL, control);
431}
432
Michael Buesch69eddc82009-09-04 22:57:26 +0200433u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset)
Michael Buesche4d6b792007-09-18 15:39:42 -0400434{
435 u32 ret;
436
437 if (routing == B43_SHM_SHARED) {
438 B43_WARN_ON(offset & 0x0001);
439 if (offset & 0x0003) {
440 /* Unaligned access */
441 b43_shm_control_word(dev, routing, offset >> 2);
442 ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
Michael Buesche4d6b792007-09-18 15:39:42 -0400443 b43_shm_control_word(dev, routing, (offset >> 2) + 1);
Michael Bueschf62ae6c2009-07-31 20:51:41 +0200444 ret |= ((u32)b43_read16(dev, B43_MMIO_SHM_DATA)) << 16;
Michael Buesche4d6b792007-09-18 15:39:42 -0400445
Michael Buesch280d0e12007-12-26 18:26:17 +0100446 goto out;
Michael Buesche4d6b792007-09-18 15:39:42 -0400447 }
448 offset >>= 2;
449 }
450 b43_shm_control_word(dev, routing, offset);
451 ret = b43_read32(dev, B43_MMIO_SHM_DATA);
Michael Buesch280d0e12007-12-26 18:26:17 +0100452out:
Michael Buesch6bbc3212008-06-19 19:33:51 +0200453 return ret;
454}
455
Michael Buesch69eddc82009-09-04 22:57:26 +0200456u16 b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset)
Michael Buesche4d6b792007-09-18 15:39:42 -0400457{
458 u16 ret;
459
460 if (routing == B43_SHM_SHARED) {
461 B43_WARN_ON(offset & 0x0001);
462 if (offset & 0x0003) {
463 /* Unaligned access */
464 b43_shm_control_word(dev, routing, offset >> 2);
465 ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED);
466
Michael Buesch280d0e12007-12-26 18:26:17 +0100467 goto out;
Michael Buesche4d6b792007-09-18 15:39:42 -0400468 }
469 offset >>= 2;
470 }
471 b43_shm_control_word(dev, routing, offset);
472 ret = b43_read16(dev, B43_MMIO_SHM_DATA);
Michael Buesch280d0e12007-12-26 18:26:17 +0100473out:
Michael Buesch6bbc3212008-06-19 19:33:51 +0200474 return ret;
475}
476
Michael Buesch69eddc82009-09-04 22:57:26 +0200477void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value)
Michael Buesche4d6b792007-09-18 15:39:42 -0400478{
479 if (routing == B43_SHM_SHARED) {
480 B43_WARN_ON(offset & 0x0001);
481 if (offset & 0x0003) {
482 /* Unaligned access */
483 b43_shm_control_word(dev, routing, offset >> 2);
Michael Buesche4d6b792007-09-18 15:39:42 -0400484 b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED,
Michael Bueschf62ae6c2009-07-31 20:51:41 +0200485 value & 0xFFFF);
Michael Buesche4d6b792007-09-18 15:39:42 -0400486 b43_shm_control_word(dev, routing, (offset >> 2) + 1);
Michael Bueschf62ae6c2009-07-31 20:51:41 +0200487 b43_write16(dev, B43_MMIO_SHM_DATA,
488 (value >> 16) & 0xFFFF);
Michael Buesch6bbc3212008-06-19 19:33:51 +0200489 return;
Michael Buesche4d6b792007-09-18 15:39:42 -0400490 }
491 offset >>= 2;
492 }
493 b43_shm_control_word(dev, routing, offset);
Michael Buesche4d6b792007-09-18 15:39:42 -0400494 b43_write32(dev, B43_MMIO_SHM_DATA, value);
Michael Buesch6bbc3212008-06-19 19:33:51 +0200495}
496
Michael Buesch69eddc82009-09-04 22:57:26 +0200497void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value)
Michael Buesch6bbc3212008-06-19 19:33:51 +0200498{
499 if (routing == B43_SHM_SHARED) {
500 B43_WARN_ON(offset & 0x0001);
501 if (offset & 0x0003) {
502 /* Unaligned access */
503 b43_shm_control_word(dev, routing, offset >> 2);
504 b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value);
505 return;
506 }
507 offset >>= 2;
508 }
509 b43_shm_control_word(dev, routing, offset);
510 b43_write16(dev, B43_MMIO_SHM_DATA, value);
511}
512
Michael Buesche4d6b792007-09-18 15:39:42 -0400513/* Read HostFlags */
John Daiker99da1852009-02-24 02:16:42 -0800514u64 b43_hf_read(struct b43_wldev *dev)
Michael Buesche4d6b792007-09-18 15:39:42 -0400515{
Michael Buesch35f0d352008-02-13 14:31:08 +0100516 u64 ret;
Michael Buesche4d6b792007-09-18 15:39:42 -0400517
518 ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI);
519 ret <<= 16;
Michael Buesch35f0d352008-02-13 14:31:08 +0100520 ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI);
521 ret <<= 16;
Michael Buesche4d6b792007-09-18 15:39:42 -0400522 ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO);
523
524 return ret;
525}
526
527/* Write HostFlags */
Michael Buesch35f0d352008-02-13 14:31:08 +0100528void b43_hf_write(struct b43_wldev *dev, u64 value)
Michael Buesche4d6b792007-09-18 15:39:42 -0400529{
Michael Buesch35f0d352008-02-13 14:31:08 +0100530 u16 lo, mi, hi;
531
532 lo = (value & 0x00000000FFFFULL);
533 mi = (value & 0x0000FFFF0000ULL) >> 16;
534 hi = (value & 0xFFFF00000000ULL) >> 32;
535 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO, lo);
536 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI, mi);
537 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi);
Michael Buesche4d6b792007-09-18 15:39:42 -0400538}
539
Michael Buesch403a3a12009-06-08 21:04:57 +0200540/* Read the firmware capabilities bitmask (Opensource firmware only) */
541static u16 b43_fwcapa_read(struct b43_wldev *dev)
542{
543 B43_WARN_ON(!dev->fw.opensource);
544 return b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_FWCAPA);
545}
546
Michael Buesch3ebbbb52008-12-19 22:51:57 +0100547void b43_tsf_read(struct b43_wldev *dev, u64 *tsf)
Michael Buesche4d6b792007-09-18 15:39:42 -0400548{
Michael Buesch3ebbbb52008-12-19 22:51:57 +0100549 u32 low, high;
Michael Buesche4d6b792007-09-18 15:39:42 -0400550
Rafał Miłecki21d889d2011-05-18 02:06:38 +0200551 B43_WARN_ON(dev->dev->core_rev < 3);
Michael Buesche4d6b792007-09-18 15:39:42 -0400552
Michael Buesch3ebbbb52008-12-19 22:51:57 +0100553 /* The hardware guarantees us an atomic read, if we
554 * read the low register first. */
555 low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW);
556 high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH);
Michael Buesche4d6b792007-09-18 15:39:42 -0400557
Michael Buesch3ebbbb52008-12-19 22:51:57 +0100558 *tsf = high;
559 *tsf <<= 32;
560 *tsf |= low;
Michael Buesche4d6b792007-09-18 15:39:42 -0400561}
562
563static void b43_time_lock(struct b43_wldev *dev)
564{
565 u32 macctl;
566
567 macctl = b43_read32(dev, B43_MMIO_MACCTL);
568 macctl |= B43_MACCTL_TBTTHOLD;
569 b43_write32(dev, B43_MMIO_MACCTL, macctl);
570 /* Commit the write */
571 b43_read32(dev, B43_MMIO_MACCTL);
572}
573
574static void b43_time_unlock(struct b43_wldev *dev)
575{
576 u32 macctl;
577
578 macctl = b43_read32(dev, B43_MMIO_MACCTL);
579 macctl &= ~B43_MACCTL_TBTTHOLD;
580 b43_write32(dev, B43_MMIO_MACCTL, macctl);
581 /* Commit the write */
582 b43_read32(dev, B43_MMIO_MACCTL);
583}
584
585static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf)
586{
Michael Buesch3ebbbb52008-12-19 22:51:57 +0100587 u32 low, high;
Michael Buesche4d6b792007-09-18 15:39:42 -0400588
Rafał Miłecki21d889d2011-05-18 02:06:38 +0200589 B43_WARN_ON(dev->dev->core_rev < 3);
Michael Buesche4d6b792007-09-18 15:39:42 -0400590
Michael Buesch3ebbbb52008-12-19 22:51:57 +0100591 low = tsf;
592 high = (tsf >> 32);
593 /* The hardware guarantees us an atomic write, if we
594 * write the low register first. */
595 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, low);
596 mmiowb();
597 b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, high);
598 mmiowb();
Michael Buesche4d6b792007-09-18 15:39:42 -0400599}
600
601void b43_tsf_write(struct b43_wldev *dev, u64 tsf)
602{
603 b43_time_lock(dev);
604 b43_tsf_write_locked(dev, tsf);
605 b43_time_unlock(dev);
606}
607
608static
John Daiker99da1852009-02-24 02:16:42 -0800609void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 *mac)
Michael Buesche4d6b792007-09-18 15:39:42 -0400610{
611 static const u8 zero_addr[ETH_ALEN] = { 0 };
612 u16 data;
613
614 if (!mac)
615 mac = zero_addr;
616
617 offset |= 0x0020;
618 b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset);
619
620 data = mac[0];
621 data |= mac[1] << 8;
622 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
623 data = mac[2];
624 data |= mac[3] << 8;
625 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
626 data = mac[4];
627 data |= mac[5] << 8;
628 b43_write16(dev, B43_MMIO_MACFILTER_DATA, data);
629}
630
631static void b43_write_mac_bssid_templates(struct b43_wldev *dev)
632{
633 const u8 *mac;
634 const u8 *bssid;
635 u8 mac_bssid[ETH_ALEN * 2];
636 int i;
637 u32 tmp;
638
639 bssid = dev->wl->bssid;
640 mac = dev->wl->mac_addr;
641
642 b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid);
643
644 memcpy(mac_bssid, mac, ETH_ALEN);
645 memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN);
646
647 /* Write our MAC address and BSSID to template ram */
648 for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) {
649 tmp = (u32) (mac_bssid[i + 0]);
650 tmp |= (u32) (mac_bssid[i + 1]) << 8;
651 tmp |= (u32) (mac_bssid[i + 2]) << 16;
652 tmp |= (u32) (mac_bssid[i + 3]) << 24;
653 b43_ram_write(dev, 0x20 + i, tmp);
654 }
655}
656
Johannes Berg4150c572007-09-17 01:29:23 -0400657static void b43_upload_card_macaddress(struct b43_wldev *dev)
Michael Buesche4d6b792007-09-18 15:39:42 -0400658{
Michael Buesche4d6b792007-09-18 15:39:42 -0400659 b43_write_mac_bssid_templates(dev);
Johannes Berg4150c572007-09-17 01:29:23 -0400660 b43_macfilter_set(dev, B43_MACFILTER_SELF, dev->wl->mac_addr);
Michael Buesche4d6b792007-09-18 15:39:42 -0400661}
662
663static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time)
664{
665 /* slot_time is in usec. */
Larry Fingerb6c3f5b2010-02-02 10:08:19 -0600666 /* This test used to exit for all but a G PHY. */
667 if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ)
Michael Buesche4d6b792007-09-18 15:39:42 -0400668 return;
Larry Fingerb6c3f5b2010-02-02 10:08:19 -0600669 b43_write16(dev, B43_MMIO_IFSSLOT, 510 + slot_time);
670 /* Shared memory location 0x0010 is the slot time and should be
671 * set to slot_time; however, this register is initially 0 and changing
672 * the value adversely affects the transmit rate for BCM4311
673 * devices. Until this behavior is unterstood, delete this step
674 *
675 * b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time);
676 */
Michael Buesche4d6b792007-09-18 15:39:42 -0400677}
678
679static void b43_short_slot_timing_enable(struct b43_wldev *dev)
680{
681 b43_set_slot_time(dev, 9);
Michael Buesche4d6b792007-09-18 15:39:42 -0400682}
683
684static void b43_short_slot_timing_disable(struct b43_wldev *dev)
685{
686 b43_set_slot_time(dev, 20);
Michael Buesche4d6b792007-09-18 15:39:42 -0400687}
688
Michael Buesche4d6b792007-09-18 15:39:42 -0400689/* DummyTransmission function, as documented on
Gábor Stefanik2f19c282009-08-13 16:51:51 +0200690 * http://bcm-v4.sipsolutions.net/802.11/DummyTransmission
Michael Buesche4d6b792007-09-18 15:39:42 -0400691 */
Gábor Stefanik2f19c282009-08-13 16:51:51 +0200692void b43_dummy_transmission(struct b43_wldev *dev, bool ofdm, bool pa_on)
Michael Buesche4d6b792007-09-18 15:39:42 -0400693{
694 struct b43_phy *phy = &dev->phy;
695 unsigned int i, max_loop;
696 u16 value;
697 u32 buffer[5] = {
698 0x00000000,
699 0x00D40000,
700 0x00000000,
701 0x01000000,
702 0x00000000,
703 };
704
Gábor Stefanik2f19c282009-08-13 16:51:51 +0200705 if (ofdm) {
Michael Buesche4d6b792007-09-18 15:39:42 -0400706 max_loop = 0x1E;
707 buffer[0] = 0x000201CC;
Gábor Stefanik2f19c282009-08-13 16:51:51 +0200708 } else {
Michael Buesche4d6b792007-09-18 15:39:42 -0400709 max_loop = 0xFA;
710 buffer[0] = 0x000B846E;
Michael Buesche4d6b792007-09-18 15:39:42 -0400711 }
712
713 for (i = 0; i < 5; i++)
714 b43_ram_write(dev, i * 4, buffer[i]);
715
Michael Buesche4d6b792007-09-18 15:39:42 -0400716 b43_write16(dev, 0x0568, 0x0000);
Rafał Miłecki21d889d2011-05-18 02:06:38 +0200717 if (dev->dev->core_rev < 11)
Gábor Stefanik2f19c282009-08-13 16:51:51 +0200718 b43_write16(dev, 0x07C0, 0x0000);
719 else
720 b43_write16(dev, 0x07C0, 0x0100);
721 value = (ofdm ? 0x41 : 0x40);
Michael Buesche4d6b792007-09-18 15:39:42 -0400722 b43_write16(dev, 0x050C, value);
Gábor Stefanik2f19c282009-08-13 16:51:51 +0200723 if ((phy->type == B43_PHYTYPE_N) || (phy->type == B43_PHYTYPE_LP))
724 b43_write16(dev, 0x0514, 0x1A02);
Michael Buesche4d6b792007-09-18 15:39:42 -0400725 b43_write16(dev, 0x0508, 0x0000);
726 b43_write16(dev, 0x050A, 0x0000);
727 b43_write16(dev, 0x054C, 0x0000);
728 b43_write16(dev, 0x056A, 0x0014);
729 b43_write16(dev, 0x0568, 0x0826);
730 b43_write16(dev, 0x0500, 0x0000);
Gábor Stefanik2f19c282009-08-13 16:51:51 +0200731 if (!pa_on && (phy->type == B43_PHYTYPE_N)) {
732 //SPEC TODO
733 }
734
735 switch (phy->type) {
736 case B43_PHYTYPE_N:
737 b43_write16(dev, 0x0502, 0x00D0);
738 break;
739 case B43_PHYTYPE_LP:
740 b43_write16(dev, 0x0502, 0x0050);
741 break;
742 default:
743 b43_write16(dev, 0x0502, 0x0030);
744 }
Michael Buesche4d6b792007-09-18 15:39:42 -0400745
746 if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
747 b43_radio_write16(dev, 0x0051, 0x0017);
748 for (i = 0x00; i < max_loop; i++) {
749 value = b43_read16(dev, 0x050E);
750 if (value & 0x0080)
751 break;
752 udelay(10);
753 }
754 for (i = 0x00; i < 0x0A; i++) {
755 value = b43_read16(dev, 0x050E);
756 if (value & 0x0400)
757 break;
758 udelay(10);
759 }
Larry Finger1d280dd2008-09-29 14:19:29 -0500760 for (i = 0x00; i < 0x19; i++) {
Michael Buesche4d6b792007-09-18 15:39:42 -0400761 value = b43_read16(dev, 0x0690);
762 if (!(value & 0x0100))
763 break;
764 udelay(10);
765 }
766 if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5)
767 b43_radio_write16(dev, 0x0051, 0x0037);
768}
769
770static void key_write(struct b43_wldev *dev,
John Daiker99da1852009-02-24 02:16:42 -0800771 u8 index, u8 algorithm, const u8 *key)
Michael Buesche4d6b792007-09-18 15:39:42 -0400772{
773 unsigned int i;
774 u32 offset;
775 u16 value;
776 u16 kidx;
777
778 /* Key index/algo block */
779 kidx = b43_kidx_to_fw(dev, index);
780 value = ((kidx << 4) | algorithm);
781 b43_shm_write16(dev, B43_SHM_SHARED,
782 B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value);
783
784 /* Write the key to the Key Table Pointer offset */
785 offset = dev->ktp + (index * B43_SEC_KEYSIZE);
786 for (i = 0; i < B43_SEC_KEYSIZE; i += 2) {
787 value = key[i];
788 value |= (u16) (key[i + 1]) << 8;
789 b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value);
790 }
791}
792
John Daiker99da1852009-02-24 02:16:42 -0800793static void keymac_write(struct b43_wldev *dev, u8 index, const u8 *addr)
Michael Buesche4d6b792007-09-18 15:39:42 -0400794{
795 u32 addrtmp[2] = { 0, 0, };
Michael Buesch66d2d082009-08-06 10:36:50 +0200796 u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
Michael Buesche4d6b792007-09-18 15:39:42 -0400797
798 if (b43_new_kidx_api(dev))
Michael Buesch66d2d082009-08-06 10:36:50 +0200799 pairwise_keys_start = B43_NR_GROUP_KEYS;
Michael Buesche4d6b792007-09-18 15:39:42 -0400800
Michael Buesch66d2d082009-08-06 10:36:50 +0200801 B43_WARN_ON(index < pairwise_keys_start);
802 /* We have four default TX keys and possibly four default RX keys.
Michael Buesche4d6b792007-09-18 15:39:42 -0400803 * Physical mac 0 is mapped to physical key 4 or 8, depending
804 * on the firmware version.
805 * So we must adjust the index here.
806 */
Michael Buesch66d2d082009-08-06 10:36:50 +0200807 index -= pairwise_keys_start;
808 B43_WARN_ON(index >= B43_NR_PAIRWISE_KEYS);
Michael Buesche4d6b792007-09-18 15:39:42 -0400809
810 if (addr) {
811 addrtmp[0] = addr[0];
812 addrtmp[0] |= ((u32) (addr[1]) << 8);
813 addrtmp[0] |= ((u32) (addr[2]) << 16);
814 addrtmp[0] |= ((u32) (addr[3]) << 24);
815 addrtmp[1] = addr[4];
816 addrtmp[1] |= ((u32) (addr[5]) << 8);
817 }
818
Michael Buesch66d2d082009-08-06 10:36:50 +0200819 /* Receive match transmitter address (RCMTA) mechanism */
820 b43_shm_write32(dev, B43_SHM_RCMTA,
821 (index * 2) + 0, addrtmp[0]);
822 b43_shm_write16(dev, B43_SHM_RCMTA,
823 (index * 2) + 1, addrtmp[1]);
Michael Buesche4d6b792007-09-18 15:39:42 -0400824}
825
gregor kowski035d0242009-08-19 22:35:45 +0200826/* The ucode will use phase1 key with TEK key to decrypt rx packets.
827 * When a packet is received, the iv32 is checked.
828 * - if it doesn't the packet is returned without modification (and software
829 * decryption can be done). That's what happen when iv16 wrap.
830 * - if it does, the rc4 key is computed, and decryption is tried.
831 * Either it will success and B43_RX_MAC_DEC is returned,
832 * either it fails and B43_RX_MAC_DEC|B43_RX_MAC_DECERR is returned
833 * and the packet is not usable (it got modified by the ucode).
834 * So in order to never have B43_RX_MAC_DECERR, we should provide
835 * a iv32 and phase1key that match. Because we drop packets in case of
836 * B43_RX_MAC_DECERR, if we have a correct iv32 but a wrong phase1key, all
837 * packets will be lost without higher layer knowing (ie no resync possible
838 * until next wrap).
839 *
840 * NOTE : this should support 50 key like RCMTA because
841 * (B43_SHM_SH_KEYIDXBLOCK - B43_SHM_SH_TKIPTSCTTAK)/14 = 50
842 */
843static void rx_tkip_phase1_write(struct b43_wldev *dev, u8 index, u32 iv32,
844 u16 *phase1key)
845{
846 unsigned int i;
847 u32 offset;
848 u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
849
850 if (!modparam_hwtkip)
851 return;
852
853 if (b43_new_kidx_api(dev))
854 pairwise_keys_start = B43_NR_GROUP_KEYS;
855
856 B43_WARN_ON(index < pairwise_keys_start);
857 /* We have four default TX keys and possibly four default RX keys.
858 * Physical mac 0 is mapped to physical key 4 or 8, depending
859 * on the firmware version.
860 * So we must adjust the index here.
861 */
862 index -= pairwise_keys_start;
863 B43_WARN_ON(index >= B43_NR_PAIRWISE_KEYS);
864
865 if (b43_debug(dev, B43_DBG_KEYS)) {
866 b43dbg(dev->wl, "rx_tkip_phase1_write : idx 0x%x, iv32 0x%x\n",
867 index, iv32);
868 }
869 /* Write the key to the RX tkip shared mem */
870 offset = B43_SHM_SH_TKIPTSCTTAK + index * (10 + 4);
871 for (i = 0; i < 10; i += 2) {
872 b43_shm_write16(dev, B43_SHM_SHARED, offset + i,
873 phase1key ? phase1key[i / 2] : 0);
874 }
875 b43_shm_write16(dev, B43_SHM_SHARED, offset + i, iv32);
876 b43_shm_write16(dev, B43_SHM_SHARED, offset + i + 2, iv32 >> 16);
877}
878
879static void b43_op_update_tkip_key(struct ieee80211_hw *hw,
Johannes Bergb3fbdcf2010-01-21 11:40:47 +0100880 struct ieee80211_vif *vif,
881 struct ieee80211_key_conf *keyconf,
882 struct ieee80211_sta *sta,
883 u32 iv32, u16 *phase1key)
gregor kowski035d0242009-08-19 22:35:45 +0200884{
885 struct b43_wl *wl = hw_to_b43_wl(hw);
886 struct b43_wldev *dev;
887 int index = keyconf->hw_key_idx;
888
889 if (B43_WARN_ON(!modparam_hwtkip))
890 return;
891
Michael Buesch96869a32010-01-24 13:13:32 +0100892 /* This is only called from the RX path through mac80211, where
893 * our mutex is already locked. */
894 B43_WARN_ON(!mutex_is_locked(&wl->mutex));
gregor kowski035d0242009-08-19 22:35:45 +0200895 dev = wl->current_dev;
Michael Buesch96869a32010-01-24 13:13:32 +0100896 B43_WARN_ON(!dev || b43_status(dev) < B43_STAT_INITIALIZED);
gregor kowski035d0242009-08-19 22:35:45 +0200897
898 keymac_write(dev, index, NULL); /* First zero out mac to avoid race */
899
900 rx_tkip_phase1_write(dev, index, iv32, phase1key);
Johannes Bergb3fbdcf2010-01-21 11:40:47 +0100901 /* only pairwise TKIP keys are supported right now */
902 if (WARN_ON(!sta))
Michael Buesch96869a32010-01-24 13:13:32 +0100903 return;
Johannes Bergb3fbdcf2010-01-21 11:40:47 +0100904 keymac_write(dev, index, sta->addr);
gregor kowski035d0242009-08-19 22:35:45 +0200905}
906
Michael Buesche4d6b792007-09-18 15:39:42 -0400907static void do_key_write(struct b43_wldev *dev,
908 u8 index, u8 algorithm,
John Daiker99da1852009-02-24 02:16:42 -0800909 const u8 *key, size_t key_len, const u8 *mac_addr)
Michael Buesche4d6b792007-09-18 15:39:42 -0400910{
911 u8 buf[B43_SEC_KEYSIZE] = { 0, };
Michael Buesch66d2d082009-08-06 10:36:50 +0200912 u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
Michael Buesche4d6b792007-09-18 15:39:42 -0400913
914 if (b43_new_kidx_api(dev))
Michael Buesch66d2d082009-08-06 10:36:50 +0200915 pairwise_keys_start = B43_NR_GROUP_KEYS;
Michael Buesche4d6b792007-09-18 15:39:42 -0400916
Michael Buesch66d2d082009-08-06 10:36:50 +0200917 B43_WARN_ON(index >= ARRAY_SIZE(dev->key));
Michael Buesche4d6b792007-09-18 15:39:42 -0400918 B43_WARN_ON(key_len > B43_SEC_KEYSIZE);
919
Michael Buesch66d2d082009-08-06 10:36:50 +0200920 if (index >= pairwise_keys_start)
Michael Buesche4d6b792007-09-18 15:39:42 -0400921 keymac_write(dev, index, NULL); /* First zero out mac. */
gregor kowski035d0242009-08-19 22:35:45 +0200922 if (algorithm == B43_SEC_ALGO_TKIP) {
923 /*
924 * We should provide an initial iv32, phase1key pair.
925 * We could start with iv32=0 and compute the corresponding
926 * phase1key, but this means calling ieee80211_get_tkip_key
927 * with a fake skb (or export other tkip function).
928 * Because we are lazy we hope iv32 won't start with
929 * 0xffffffff and let's b43_op_update_tkip_key provide a
930 * correct pair.
931 */
932 rx_tkip_phase1_write(dev, index, 0xffffffff, (u16*)buf);
933 } else if (index >= pairwise_keys_start) /* clear it */
934 rx_tkip_phase1_write(dev, index, 0, NULL);
Michael Buesche4d6b792007-09-18 15:39:42 -0400935 if (key)
936 memcpy(buf, key, key_len);
937 key_write(dev, index, algorithm, buf);
Michael Buesch66d2d082009-08-06 10:36:50 +0200938 if (index >= pairwise_keys_start)
Michael Buesche4d6b792007-09-18 15:39:42 -0400939 keymac_write(dev, index, mac_addr);
940
941 dev->key[index].algorithm = algorithm;
942}
943
944static int b43_key_write(struct b43_wldev *dev,
945 int index, u8 algorithm,
John Daiker99da1852009-02-24 02:16:42 -0800946 const u8 *key, size_t key_len,
947 const u8 *mac_addr,
Michael Buesche4d6b792007-09-18 15:39:42 -0400948 struct ieee80211_key_conf *keyconf)
949{
950 int i;
Michael Buesch66d2d082009-08-06 10:36:50 +0200951 int pairwise_keys_start;
Michael Buesche4d6b792007-09-18 15:39:42 -0400952
gregor kowski035d0242009-08-19 22:35:45 +0200953 /* For ALG_TKIP the key is encoded as a 256-bit (32 byte) data block:
954 * - Temporal Encryption Key (128 bits)
955 * - Temporal Authenticator Tx MIC Key (64 bits)
956 * - Temporal Authenticator Rx MIC Key (64 bits)
957 *
958 * Hardware only store TEK
959 */
960 if (algorithm == B43_SEC_ALGO_TKIP && key_len == 32)
961 key_len = 16;
Michael Buesche4d6b792007-09-18 15:39:42 -0400962 if (key_len > B43_SEC_KEYSIZE)
963 return -EINVAL;
Michael Buesch66d2d082009-08-06 10:36:50 +0200964 for (i = 0; i < ARRAY_SIZE(dev->key); i++) {
Michael Buesche4d6b792007-09-18 15:39:42 -0400965 /* Check that we don't already have this key. */
966 B43_WARN_ON(dev->key[i].keyconf == keyconf);
967 }
968 if (index < 0) {
Michael Buesche808e582008-12-19 21:30:52 +0100969 /* Pairwise key. Get an empty slot for the key. */
Michael Buesche4d6b792007-09-18 15:39:42 -0400970 if (b43_new_kidx_api(dev))
Michael Buesch66d2d082009-08-06 10:36:50 +0200971 pairwise_keys_start = B43_NR_GROUP_KEYS;
Michael Buesche4d6b792007-09-18 15:39:42 -0400972 else
Michael Buesch66d2d082009-08-06 10:36:50 +0200973 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
974 for (i = pairwise_keys_start;
975 i < pairwise_keys_start + B43_NR_PAIRWISE_KEYS;
976 i++) {
977 B43_WARN_ON(i >= ARRAY_SIZE(dev->key));
Michael Buesche4d6b792007-09-18 15:39:42 -0400978 if (!dev->key[i].keyconf) {
979 /* found empty */
980 index = i;
981 break;
982 }
983 }
984 if (index < 0) {
Michael Buesche808e582008-12-19 21:30:52 +0100985 b43warn(dev->wl, "Out of hardware key memory\n");
Michael Buesche4d6b792007-09-18 15:39:42 -0400986 return -ENOSPC;
987 }
988 } else
989 B43_WARN_ON(index > 3);
990
991 do_key_write(dev, index, algorithm, key, key_len, mac_addr);
992 if ((index <= 3) && !b43_new_kidx_api(dev)) {
993 /* Default RX key */
994 B43_WARN_ON(mac_addr);
995 do_key_write(dev, index + 4, algorithm, key, key_len, NULL);
996 }
997 keyconf->hw_key_idx = index;
998 dev->key[index].keyconf = keyconf;
999
1000 return 0;
1001}
1002
1003static int b43_key_clear(struct b43_wldev *dev, int index)
1004{
Michael Buesch66d2d082009-08-06 10:36:50 +02001005 if (B43_WARN_ON((index < 0) || (index >= ARRAY_SIZE(dev->key))))
Michael Buesche4d6b792007-09-18 15:39:42 -04001006 return -EINVAL;
1007 do_key_write(dev, index, B43_SEC_ALGO_NONE,
1008 NULL, B43_SEC_KEYSIZE, NULL);
1009 if ((index <= 3) && !b43_new_kidx_api(dev)) {
1010 do_key_write(dev, index + 4, B43_SEC_ALGO_NONE,
1011 NULL, B43_SEC_KEYSIZE, NULL);
1012 }
1013 dev->key[index].keyconf = NULL;
1014
1015 return 0;
1016}
1017
1018static void b43_clear_keys(struct b43_wldev *dev)
1019{
Michael Buesch66d2d082009-08-06 10:36:50 +02001020 int i, count;
Michael Buesche4d6b792007-09-18 15:39:42 -04001021
Michael Buesch66d2d082009-08-06 10:36:50 +02001022 if (b43_new_kidx_api(dev))
1023 count = B43_NR_GROUP_KEYS + B43_NR_PAIRWISE_KEYS;
1024 else
1025 count = B43_NR_GROUP_KEYS * 2 + B43_NR_PAIRWISE_KEYS;
1026 for (i = 0; i < count; i++)
Michael Buesche4d6b792007-09-18 15:39:42 -04001027 b43_key_clear(dev, i);
1028}
1029
Michael Buesch9cf7f242008-12-19 20:24:30 +01001030static void b43_dump_keymemory(struct b43_wldev *dev)
1031{
Michael Buesch66d2d082009-08-06 10:36:50 +02001032 unsigned int i, index, count, offset, pairwise_keys_start;
Michael Buesch9cf7f242008-12-19 20:24:30 +01001033 u8 mac[ETH_ALEN];
1034 u16 algo;
1035 u32 rcmta0;
1036 u16 rcmta1;
1037 u64 hf;
1038 struct b43_key *key;
1039
1040 if (!b43_debug(dev, B43_DBG_KEYS))
1041 return;
1042
1043 hf = b43_hf_read(dev);
1044 b43dbg(dev->wl, "Hardware key memory dump: USEDEFKEYS=%u\n",
1045 !!(hf & B43_HF_USEDEFKEYS));
Michael Buesch66d2d082009-08-06 10:36:50 +02001046 if (b43_new_kidx_api(dev)) {
1047 pairwise_keys_start = B43_NR_GROUP_KEYS;
1048 count = B43_NR_GROUP_KEYS + B43_NR_PAIRWISE_KEYS;
1049 } else {
1050 pairwise_keys_start = B43_NR_GROUP_KEYS * 2;
1051 count = B43_NR_GROUP_KEYS * 2 + B43_NR_PAIRWISE_KEYS;
1052 }
1053 for (index = 0; index < count; index++) {
Michael Buesch9cf7f242008-12-19 20:24:30 +01001054 key = &(dev->key[index]);
1055 printk(KERN_DEBUG "Key slot %02u: %s",
1056 index, (key->keyconf == NULL) ? " " : "*");
1057 offset = dev->ktp + (index * B43_SEC_KEYSIZE);
1058 for (i = 0; i < B43_SEC_KEYSIZE; i += 2) {
1059 u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i);
1060 printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF));
1061 }
1062
1063 algo = b43_shm_read16(dev, B43_SHM_SHARED,
1064 B43_SHM_SH_KEYIDXBLOCK + (index * 2));
1065 printk(" Algo: %04X/%02X", algo, key->algorithm);
1066
Michael Buesch66d2d082009-08-06 10:36:50 +02001067 if (index >= pairwise_keys_start) {
gregor kowski035d0242009-08-19 22:35:45 +02001068 if (key->algorithm == B43_SEC_ALGO_TKIP) {
1069 printk(" TKIP: ");
1070 offset = B43_SHM_SH_TKIPTSCTTAK + (index - 4) * (10 + 4);
1071 for (i = 0; i < 14; i += 2) {
1072 u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i);
1073 printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF));
1074 }
1075 }
Michael Buesch9cf7f242008-12-19 20:24:30 +01001076 rcmta0 = b43_shm_read32(dev, B43_SHM_RCMTA,
Michael Buesch66d2d082009-08-06 10:36:50 +02001077 ((index - pairwise_keys_start) * 2) + 0);
Michael Buesch9cf7f242008-12-19 20:24:30 +01001078 rcmta1 = b43_shm_read16(dev, B43_SHM_RCMTA,
Michael Buesch66d2d082009-08-06 10:36:50 +02001079 ((index - pairwise_keys_start) * 2) + 1);
Michael Buesch9cf7f242008-12-19 20:24:30 +01001080 *((__le32 *)(&mac[0])) = cpu_to_le32(rcmta0);
1081 *((__le16 *)(&mac[4])) = cpu_to_le16(rcmta1);
Johannes Berge91d8332009-07-15 17:21:41 +02001082 printk(" MAC: %pM", mac);
Michael Buesch9cf7f242008-12-19 20:24:30 +01001083 } else
1084 printk(" DEFAULT KEY");
1085 printk("\n");
1086 }
1087}
1088
Michael Buesche4d6b792007-09-18 15:39:42 -04001089void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags)
1090{
1091 u32 macctl;
1092 u16 ucstat;
1093 bool hwps;
1094 bool awake;
1095 int i;
1096
1097 B43_WARN_ON((ps_flags & B43_PS_ENABLED) &&
1098 (ps_flags & B43_PS_DISABLED));
1099 B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP));
1100
1101 if (ps_flags & B43_PS_ENABLED) {
1102 hwps = 1;
1103 } else if (ps_flags & B43_PS_DISABLED) {
1104 hwps = 0;
1105 } else {
1106 //TODO: If powersave is not off and FIXME is not set and we are not in adhoc
1107 // and thus is not an AP and we are associated, set bit 25
1108 }
1109 if (ps_flags & B43_PS_AWAKE) {
1110 awake = 1;
1111 } else if (ps_flags & B43_PS_ASLEEP) {
1112 awake = 0;
1113 } else {
1114 //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME,
1115 // or we are associated, or FIXME, or the latest PS-Poll packet sent was
1116 // successful, set bit26
1117 }
1118
1119/* FIXME: For now we force awake-on and hwps-off */
1120 hwps = 0;
1121 awake = 1;
1122
1123 macctl = b43_read32(dev, B43_MMIO_MACCTL);
1124 if (hwps)
1125 macctl |= B43_MACCTL_HWPS;
1126 else
1127 macctl &= ~B43_MACCTL_HWPS;
1128 if (awake)
1129 macctl |= B43_MACCTL_AWAKE;
1130 else
1131 macctl &= ~B43_MACCTL_AWAKE;
1132 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1133 /* Commit write */
1134 b43_read32(dev, B43_MMIO_MACCTL);
Rafał Miłecki21d889d2011-05-18 02:06:38 +02001135 if (awake && dev->dev->core_rev >= 5) {
Michael Buesche4d6b792007-09-18 15:39:42 -04001136 /* Wait for the microcode to wake up. */
1137 for (i = 0; i < 100; i++) {
1138 ucstat = b43_shm_read16(dev, B43_SHM_SHARED,
1139 B43_SHM_SH_UCODESTAT);
1140 if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP)
1141 break;
1142 udelay(10);
1143 }
1144 }
1145}
1146
Rafał Miłecki14952982011-05-17 18:57:28 +02001147static void b43_ssb_wireless_core_reset(struct b43_wldev *dev, u32 flags)
Michael Buesche4d6b792007-09-18 15:39:42 -04001148{
Rafał Miłeckid48ae5c2011-05-19 15:11:26 +02001149 struct ssb_device *sdev = dev->dev->sdev;
Michael Buesche4d6b792007-09-18 15:39:42 -04001150 u32 tmslow;
Michael Buesche4d6b792007-09-18 15:39:42 -04001151
1152 flags |= B43_TMSLOW_PHYCLKEN;
1153 flags |= B43_TMSLOW_PHYRESET;
Rafał Miłecki42ab1352010-12-09 20:56:01 +01001154 if (dev->phy.type == B43_PHYTYPE_N)
1155 flags |= B43_TMSLOW_PHY_BANDWIDTH_20MHZ; /* Make 20 MHz def */
Rafał Miłecki24ca39d2011-05-18 02:06:43 +02001156 b43_device_enable(dev, flags);
Michael Buesche4d6b792007-09-18 15:39:42 -04001157 msleep(2); /* Wait for the PLL to turn on. */
1158
1159 /* Now take the PHY out of Reset again */
Rafał Miłeckid48ae5c2011-05-19 15:11:26 +02001160 tmslow = ssb_read32(sdev, SSB_TMSLOW);
Michael Buesche4d6b792007-09-18 15:39:42 -04001161 tmslow |= SSB_TMSLOW_FGC;
1162 tmslow &= ~B43_TMSLOW_PHYRESET;
Rafał Miłeckid48ae5c2011-05-19 15:11:26 +02001163 ssb_write32(sdev, SSB_TMSLOW, tmslow);
1164 ssb_read32(sdev, SSB_TMSLOW); /* flush */
Michael Buesche4d6b792007-09-18 15:39:42 -04001165 msleep(1);
1166 tmslow &= ~SSB_TMSLOW_FGC;
Rafał Miłeckid48ae5c2011-05-19 15:11:26 +02001167 ssb_write32(sdev, SSB_TMSLOW, tmslow);
1168 ssb_read32(sdev, SSB_TMSLOW); /* flush */
Michael Buesche4d6b792007-09-18 15:39:42 -04001169 msleep(1);
Rafał Miłecki14952982011-05-17 18:57:28 +02001170}
1171
1172void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags)
1173{
1174 u32 macctl;
1175
1176 b43_ssb_wireless_core_reset(dev, flags);
Michael Buesche4d6b792007-09-18 15:39:42 -04001177
Michael Bueschfb111372008-09-02 13:00:34 +02001178 /* Turn Analog ON, but only if we already know the PHY-type.
1179 * This protects against very early setup where we don't know the
1180 * PHY-type, yet. wireless_core_reset will be called once again later,
1181 * when we know the PHY-type. */
1182 if (dev->phy.ops)
Michael Bueschcb24f572008-09-03 12:12:20 +02001183 dev->phy.ops->switch_analog(dev, 1);
Michael Buesche4d6b792007-09-18 15:39:42 -04001184
1185 macctl = b43_read32(dev, B43_MMIO_MACCTL);
1186 macctl &= ~B43_MACCTL_GMODE;
1187 if (flags & B43_TMSLOW_GMODE)
1188 macctl |= B43_MACCTL_GMODE;
1189 macctl |= B43_MACCTL_IHR_ENABLED;
1190 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1191}
1192
1193static void handle_irq_transmit_status(struct b43_wldev *dev)
1194{
1195 u32 v0, v1;
1196 u16 tmp;
1197 struct b43_txstatus stat;
1198
1199 while (1) {
1200 v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1201 if (!(v0 & 0x00000001))
1202 break;
1203 v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1204
1205 stat.cookie = (v0 >> 16);
1206 stat.seq = (v1 & 0x0000FFFF);
1207 stat.phy_stat = ((v1 & 0x00FF0000) >> 16);
1208 tmp = (v0 & 0x0000FFFF);
1209 stat.frame_count = ((tmp & 0xF000) >> 12);
1210 stat.rts_count = ((tmp & 0x0F00) >> 8);
1211 stat.supp_reason = ((tmp & 0x001C) >> 2);
1212 stat.pm_indicated = !!(tmp & 0x0080);
1213 stat.intermediate = !!(tmp & 0x0040);
1214 stat.for_ampdu = !!(tmp & 0x0020);
1215 stat.acked = !!(tmp & 0x0002);
1216
1217 b43_handle_txstatus(dev, &stat);
1218 }
1219}
1220
1221static void drain_txstatus_queue(struct b43_wldev *dev)
1222{
1223 u32 dummy;
1224
Rafał Miłecki21d889d2011-05-18 02:06:38 +02001225 if (dev->dev->core_rev < 5)
Michael Buesche4d6b792007-09-18 15:39:42 -04001226 return;
1227 /* Read all entries from the microcode TXstatus FIFO
1228 * and throw them away.
1229 */
1230 while (1) {
1231 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1232 if (!(dummy & 0x00000001))
1233 break;
1234 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1235 }
1236}
1237
1238static u32 b43_jssi_read(struct b43_wldev *dev)
1239{
1240 u32 val = 0;
1241
1242 val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A);
1243 val <<= 16;
1244 val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088);
1245
1246 return val;
1247}
1248
1249static void b43_jssi_write(struct b43_wldev *dev, u32 jssi)
1250{
1251 b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF));
1252 b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16);
1253}
1254
1255static void b43_generate_noise_sample(struct b43_wldev *dev)
1256{
1257 b43_jssi_write(dev, 0x7F7F7F7F);
Michael Bueschaa6c7ae2007-12-26 16:26:36 +01001258 b43_write32(dev, B43_MMIO_MACCMD,
1259 b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE);
Michael Buesche4d6b792007-09-18 15:39:42 -04001260}
1261
1262static void b43_calculate_link_quality(struct b43_wldev *dev)
1263{
1264 /* Top half of Link Quality calculation. */
1265
Michael Bueschef1a6282008-08-27 18:53:02 +02001266 if (dev->phy.type != B43_PHYTYPE_G)
1267 return;
Michael Buesche4d6b792007-09-18 15:39:42 -04001268 if (dev->noisecalc.calculation_running)
1269 return;
Michael Buesche4d6b792007-09-18 15:39:42 -04001270 dev->noisecalc.calculation_running = 1;
1271 dev->noisecalc.nr_samples = 0;
1272
1273 b43_generate_noise_sample(dev);
1274}
1275
1276static void handle_irq_noise(struct b43_wldev *dev)
1277{
Michael Bueschef1a6282008-08-27 18:53:02 +02001278 struct b43_phy_g *phy = dev->phy.g;
Michael Buesche4d6b792007-09-18 15:39:42 -04001279 u16 tmp;
1280 u8 noise[4];
1281 u8 i, j;
1282 s32 average;
1283
1284 /* Bottom half of Link Quality calculation. */
1285
Michael Bueschef1a6282008-08-27 18:53:02 +02001286 if (dev->phy.type != B43_PHYTYPE_G)
1287 return;
1288
Michael Buesch98a3b2f2008-06-12 12:36:29 +02001289 /* Possible race condition: It might be possible that the user
1290 * changed to a different channel in the meantime since we
1291 * started the calculation. We ignore that fact, since it's
1292 * not really that much of a problem. The background noise is
1293 * an estimation only anyway. Slightly wrong results will get damped
1294 * by the averaging of the 8 sample rounds. Additionally the
1295 * value is shortlived. So it will be replaced by the next noise
1296 * calculation round soon. */
1297
Michael Buesche4d6b792007-09-18 15:39:42 -04001298 B43_WARN_ON(!dev->noisecalc.calculation_running);
Michael Buesch1a094042007-09-20 11:13:40 -07001299 *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev));
Michael Buesche4d6b792007-09-18 15:39:42 -04001300 if (noise[0] == 0x7F || noise[1] == 0x7F ||
1301 noise[2] == 0x7F || noise[3] == 0x7F)
1302 goto generate_new;
1303
1304 /* Get the noise samples. */
1305 B43_WARN_ON(dev->noisecalc.nr_samples >= 8);
1306 i = dev->noisecalc.nr_samples;
Harvey Harrisoncdbf0842008-05-02 13:47:48 -07001307 noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1308 noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1309 noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1310 noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
Michael Buesche4d6b792007-09-18 15:39:42 -04001311 dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]];
1312 dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]];
1313 dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]];
1314 dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]];
1315 dev->noisecalc.nr_samples++;
1316 if (dev->noisecalc.nr_samples == 8) {
1317 /* Calculate the Link Quality by the noise samples. */
1318 average = 0;
1319 for (i = 0; i < 8; i++) {
1320 for (j = 0; j < 4; j++)
1321 average += dev->noisecalc.samples[i][j];
1322 }
1323 average /= (8 * 4);
1324 average *= 125;
1325 average += 64;
1326 average /= 128;
1327 tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C);
1328 tmp = (tmp / 128) & 0x1F;
1329 if (tmp >= 8)
1330 average += 2;
1331 else
1332 average -= 25;
1333 if (tmp == 8)
1334 average -= 72;
1335 else
1336 average -= 48;
1337
1338 dev->stats.link_noise = average;
Michael Buesche4d6b792007-09-18 15:39:42 -04001339 dev->noisecalc.calculation_running = 0;
1340 return;
1341 }
Michael Buesch98a3b2f2008-06-12 12:36:29 +02001342generate_new:
Michael Buesche4d6b792007-09-18 15:39:42 -04001343 b43_generate_noise_sample(dev);
1344}
1345
1346static void handle_irq_tbtt_indication(struct b43_wldev *dev)
1347{
Johannes Berg05c914f2008-09-11 00:01:58 +02001348 if (b43_is_mode(dev->wl, NL80211_IFTYPE_AP)) {
Michael Buesche4d6b792007-09-18 15:39:42 -04001349 ///TODO: PS TBTT
1350 } else {
1351 if (1 /*FIXME: the last PSpoll frame was sent successfully */ )
1352 b43_power_saving_ctl_bits(dev, 0);
1353 }
Johannes Berg05c914f2008-09-11 00:01:58 +02001354 if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC))
Michael Bueschaa6c7ae2007-12-26 16:26:36 +01001355 dev->dfq_valid = 1;
Michael Buesche4d6b792007-09-18 15:39:42 -04001356}
1357
1358static void handle_irq_atim_end(struct b43_wldev *dev)
1359{
Michael Bueschaa6c7ae2007-12-26 16:26:36 +01001360 if (dev->dfq_valid) {
1361 b43_write32(dev, B43_MMIO_MACCMD,
1362 b43_read32(dev, B43_MMIO_MACCMD)
1363 | B43_MACCMD_DFQ_VALID);
1364 dev->dfq_valid = 0;
1365 }
Michael Buesche4d6b792007-09-18 15:39:42 -04001366}
1367
1368static void handle_irq_pmq(struct b43_wldev *dev)
1369{
1370 u32 tmp;
1371
1372 //TODO: AP mode.
1373
1374 while (1) {
1375 tmp = b43_read32(dev, B43_MMIO_PS_STATUS);
1376 if (!(tmp & 0x00000008))
1377 break;
1378 }
1379 /* 16bit write is odd, but correct. */
1380 b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002);
1381}
1382
1383static void b43_write_template_common(struct b43_wldev *dev,
John Daiker99da1852009-02-24 02:16:42 -08001384 const u8 *data, u16 size,
Michael Buesche4d6b792007-09-18 15:39:42 -04001385 u16 ram_offset,
1386 u16 shm_size_offset, u8 rate)
1387{
1388 u32 i, tmp;
1389 struct b43_plcp_hdr4 plcp;
1390
1391 plcp.data = 0;
1392 b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
1393 b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data));
1394 ram_offset += sizeof(u32);
1395 /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet.
1396 * So leave the first two bytes of the next write blank.
1397 */
1398 tmp = (u32) (data[0]) << 16;
1399 tmp |= (u32) (data[1]) << 24;
1400 b43_ram_write(dev, ram_offset, tmp);
1401 ram_offset += sizeof(u32);
1402 for (i = 2; i < size; i += sizeof(u32)) {
1403 tmp = (u32) (data[i + 0]);
1404 if (i + 1 < size)
1405 tmp |= (u32) (data[i + 1]) << 8;
1406 if (i + 2 < size)
1407 tmp |= (u32) (data[i + 2]) << 16;
1408 if (i + 3 < size)
1409 tmp |= (u32) (data[i + 3]) << 24;
1410 b43_ram_write(dev, ram_offset + i - 2, tmp);
1411 }
1412 b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset,
1413 size + sizeof(struct b43_plcp_hdr6));
1414}
1415
Michael Buesch5042c502008-04-05 15:05:00 +02001416/* Check if the use of the antenna that ieee80211 told us to
1417 * use is possible. This will fall back to DEFAULT.
1418 * "antenna_nr" is the antenna identifier we got from ieee80211. */
1419u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev,
1420 u8 antenna_nr)
1421{
1422 u8 antenna_mask;
1423
1424 if (antenna_nr == 0) {
1425 /* Zero means "use default antenna". That's always OK. */
1426 return 0;
1427 }
1428
1429 /* Get the mask of available antennas. */
1430 if (dev->phy.gmode)
Rafał Miłecki05814832011-05-18 02:06:39 +02001431 antenna_mask = dev->dev->bus_sprom->ant_available_bg;
Michael Buesch5042c502008-04-05 15:05:00 +02001432 else
Rafał Miłecki05814832011-05-18 02:06:39 +02001433 antenna_mask = dev->dev->bus_sprom->ant_available_a;
Michael Buesch5042c502008-04-05 15:05:00 +02001434
1435 if (!(antenna_mask & (1 << (antenna_nr - 1)))) {
1436 /* This antenna is not available. Fall back to default. */
1437 return 0;
1438 }
1439
1440 return antenna_nr;
1441}
1442
Michael Buesch5042c502008-04-05 15:05:00 +02001443/* Convert a b43 antenna number value to the PHY TX control value. */
1444static u16 b43_antenna_to_phyctl(int antenna)
1445{
1446 switch (antenna) {
1447 case B43_ANTENNA0:
1448 return B43_TXH_PHY_ANT0;
1449 case B43_ANTENNA1:
1450 return B43_TXH_PHY_ANT1;
1451 case B43_ANTENNA2:
1452 return B43_TXH_PHY_ANT2;
1453 case B43_ANTENNA3:
1454 return B43_TXH_PHY_ANT3;
Gábor Stefanik64e368b2009-08-27 22:49:49 +02001455 case B43_ANTENNA_AUTO0:
1456 case B43_ANTENNA_AUTO1:
Michael Buesch5042c502008-04-05 15:05:00 +02001457 return B43_TXH_PHY_ANT01AUTO;
1458 }
1459 B43_WARN_ON(1);
1460 return 0;
1461}
1462
Michael Buesche4d6b792007-09-18 15:39:42 -04001463static void b43_write_beacon_template(struct b43_wldev *dev,
1464 u16 ram_offset,
Michael Buesch5042c502008-04-05 15:05:00 +02001465 u16 shm_size_offset)
Michael Buesche4d6b792007-09-18 15:39:42 -04001466{
Michael Buesch47f76ca2007-12-27 22:15:11 +01001467 unsigned int i, len, variable_len;
Michael Buesche66fee62007-12-26 17:47:10 +01001468 const struct ieee80211_mgmt *bcn;
1469 const u8 *ie;
1470 bool tim_found = 0;
Michael Buesch5042c502008-04-05 15:05:00 +02001471 unsigned int rate;
1472 u16 ctl;
1473 int antenna;
Johannes Berge039fa42008-05-15 12:55:29 +02001474 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon);
Michael Buesche4d6b792007-09-18 15:39:42 -04001475
Michael Buesche66fee62007-12-26 17:47:10 +01001476 bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data);
1477 len = min((size_t) dev->wl->current_beacon->len,
Michael Buesche4d6b792007-09-18 15:39:42 -04001478 0x200 - sizeof(struct b43_plcp_hdr6));
Johannes Berge039fa42008-05-15 12:55:29 +02001479 rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value;
Michael Buesche66fee62007-12-26 17:47:10 +01001480
1481 b43_write_template_common(dev, (const u8 *)bcn,
Michael Buesche4d6b792007-09-18 15:39:42 -04001482 len, ram_offset, shm_size_offset, rate);
Michael Buesche66fee62007-12-26 17:47:10 +01001483
Michael Buesch5042c502008-04-05 15:05:00 +02001484 /* Write the PHY TX control parameters. */
Johannes Berg0f4ac382008-10-09 12:18:04 +02001485 antenna = B43_ANTENNA_DEFAULT;
Michael Buesch5042c502008-04-05 15:05:00 +02001486 antenna = b43_antenna_to_phyctl(antenna);
1487 ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL);
1488 /* We can't send beacons with short preamble. Would get PHY errors. */
1489 ctl &= ~B43_TXH_PHY_SHORTPRMBL;
1490 ctl &= ~B43_TXH_PHY_ANT;
1491 ctl &= ~B43_TXH_PHY_ENC;
1492 ctl |= antenna;
1493 if (b43_is_cck_rate(rate))
1494 ctl |= B43_TXH_PHY_ENC_CCK;
1495 else
1496 ctl |= B43_TXH_PHY_ENC_OFDM;
1497 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl);
1498
Michael Buesche66fee62007-12-26 17:47:10 +01001499 /* Find the position of the TIM and the DTIM_period value
1500 * and write them to SHM. */
1501 ie = bcn->u.beacon.variable;
Michael Buesch47f76ca2007-12-27 22:15:11 +01001502 variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
1503 for (i = 0; i < variable_len - 2; ) {
Michael Buesche66fee62007-12-26 17:47:10 +01001504 uint8_t ie_id, ie_len;
1505
1506 ie_id = ie[i];
1507 ie_len = ie[i + 1];
1508 if (ie_id == 5) {
1509 u16 tim_position;
1510 u16 dtim_period;
1511 /* This is the TIM Information Element */
1512
1513 /* Check whether the ie_len is in the beacon data range. */
Michael Buesch47f76ca2007-12-27 22:15:11 +01001514 if (variable_len < ie_len + 2 + i)
Michael Buesche66fee62007-12-26 17:47:10 +01001515 break;
1516 /* A valid TIM is at least 4 bytes long. */
1517 if (ie_len < 4)
1518 break;
1519 tim_found = 1;
1520
1521 tim_position = sizeof(struct b43_plcp_hdr6);
1522 tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable);
1523 tim_position += i;
1524
1525 dtim_period = ie[i + 3];
1526
1527 b43_shm_write16(dev, B43_SHM_SHARED,
1528 B43_SHM_SH_TIMBPOS, tim_position);
1529 b43_shm_write16(dev, B43_SHM_SHARED,
1530 B43_SHM_SH_DTIMPER, dtim_period);
1531 break;
1532 }
1533 i += ie_len + 2;
1534 }
1535 if (!tim_found) {
Johannes Berg04dea132008-05-20 12:10:49 +02001536 /*
1537 * If ucode wants to modify TIM do it behind the beacon, this
1538 * will happen, for example, when doing mesh networking.
1539 */
1540 b43_shm_write16(dev, B43_SHM_SHARED,
1541 B43_SHM_SH_TIMBPOS,
1542 len + sizeof(struct b43_plcp_hdr6));
1543 b43_shm_write16(dev, B43_SHM_SHARED,
1544 B43_SHM_SH_DTIMPER, 0);
1545 }
1546 b43dbg(dev->wl, "Updated beacon template at 0x%x\n", ram_offset);
Michael Buesche4d6b792007-09-18 15:39:42 -04001547}
1548
Michael Buesch6b4bec012008-05-20 12:16:28 +02001549static void b43_upload_beacon0(struct b43_wldev *dev)
1550{
1551 struct b43_wl *wl = dev->wl;
1552
1553 if (wl->beacon0_uploaded)
1554 return;
1555 b43_write_beacon_template(dev, 0x68, 0x18);
Michael Buesch6b4bec012008-05-20 12:16:28 +02001556 wl->beacon0_uploaded = 1;
1557}
1558
1559static void b43_upload_beacon1(struct b43_wldev *dev)
1560{
1561 struct b43_wl *wl = dev->wl;
1562
1563 if (wl->beacon1_uploaded)
1564 return;
1565 b43_write_beacon_template(dev, 0x468, 0x1A);
1566 wl->beacon1_uploaded = 1;
1567}
1568
Michael Bueschc97a4cc2008-04-05 15:02:09 +02001569static void handle_irq_beacon(struct b43_wldev *dev)
1570{
1571 struct b43_wl *wl = dev->wl;
1572 u32 cmd, beacon0_valid, beacon1_valid;
1573
Johannes Berg05c914f2008-09-11 00:01:58 +02001574 if (!b43_is_mode(wl, NL80211_IFTYPE_AP) &&
1575 !b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT))
Michael Bueschc97a4cc2008-04-05 15:02:09 +02001576 return;
1577
1578 /* This is the bottom half of the asynchronous beacon update. */
1579
1580 /* Ignore interrupt in the future. */
Michael Buesch13790722009-04-08 21:26:27 +02001581 dev->irq_mask &= ~B43_IRQ_BEACON;
Michael Bueschc97a4cc2008-04-05 15:02:09 +02001582
1583 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1584 beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID);
1585 beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID);
1586
1587 /* Schedule interrupt manually, if busy. */
1588 if (beacon0_valid && beacon1_valid) {
1589 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON);
Michael Buesch13790722009-04-08 21:26:27 +02001590 dev->irq_mask |= B43_IRQ_BEACON;
Michael Bueschc97a4cc2008-04-05 15:02:09 +02001591 return;
1592 }
1593
Michael Buesch6b4bec012008-05-20 12:16:28 +02001594 if (unlikely(wl->beacon_templates_virgin)) {
1595 /* We never uploaded a beacon before.
1596 * Upload both templates now, but only mark one valid. */
1597 wl->beacon_templates_virgin = 0;
1598 b43_upload_beacon0(dev);
1599 b43_upload_beacon1(dev);
Michael Bueschc97a4cc2008-04-05 15:02:09 +02001600 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1601 cmd |= B43_MACCMD_BEACON0_VALID;
1602 b43_write32(dev, B43_MMIO_MACCMD, cmd);
Michael Buesch6b4bec012008-05-20 12:16:28 +02001603 } else {
1604 if (!beacon0_valid) {
1605 b43_upload_beacon0(dev);
1606 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1607 cmd |= B43_MACCMD_BEACON0_VALID;
1608 b43_write32(dev, B43_MMIO_MACCMD, cmd);
1609 } else if (!beacon1_valid) {
1610 b43_upload_beacon1(dev);
1611 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1612 cmd |= B43_MACCMD_BEACON1_VALID;
1613 b43_write32(dev, B43_MMIO_MACCMD, cmd);
Michael Bueschc97a4cc2008-04-05 15:02:09 +02001614 }
Michael Bueschc97a4cc2008-04-05 15:02:09 +02001615 }
1616}
1617
Michael Buesch36dbd952009-09-04 22:51:29 +02001618static void b43_do_beacon_update_trigger_work(struct b43_wldev *dev)
1619{
1620 u32 old_irq_mask = dev->irq_mask;
1621
1622 /* update beacon right away or defer to irq */
1623 handle_irq_beacon(dev);
1624 if (old_irq_mask != dev->irq_mask) {
1625 /* The handler updated the IRQ mask. */
1626 B43_WARN_ON(!dev->irq_mask);
1627 if (b43_read32(dev, B43_MMIO_GEN_IRQ_MASK)) {
1628 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask);
1629 } else {
1630 /* Device interrupts are currently disabled. That means
1631 * we just ran the hardirq handler and scheduled the
1632 * IRQ thread. The thread will write the IRQ mask when
1633 * it finished, so there's nothing to do here. Writing
1634 * the mask _here_ would incorrectly re-enable IRQs. */
1635 }
1636 }
1637}
1638
Michael Buescha82d9922008-04-04 21:40:06 +02001639static void b43_beacon_update_trigger_work(struct work_struct *work)
1640{
1641 struct b43_wl *wl = container_of(work, struct b43_wl,
1642 beacon_update_trigger);
1643 struct b43_wldev *dev;
1644
1645 mutex_lock(&wl->mutex);
1646 dev = wl->current_dev;
1647 if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) {
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02001648 if (dev->sdev->bus->bustype == SSB_BUSTYPE_SDIO) {
Michael Buesch36dbd952009-09-04 22:51:29 +02001649 /* wl->mutex is enough. */
1650 b43_do_beacon_update_trigger_work(dev);
1651 mmiowb();
1652 } else {
1653 spin_lock_irq(&wl->hardirq_lock);
1654 b43_do_beacon_update_trigger_work(dev);
1655 mmiowb();
1656 spin_unlock_irq(&wl->hardirq_lock);
1657 }
Michael Buescha82d9922008-04-04 21:40:06 +02001658 }
1659 mutex_unlock(&wl->mutex);
1660}
1661
Michael Bueschd4df6f12007-12-26 18:04:14 +01001662/* Asynchronously update the packet templates in template RAM.
Michael Buesch36dbd952009-09-04 22:51:29 +02001663 * Locking: Requires wl->mutex to be locked. */
Johannes Berg9d139c82008-07-09 14:40:37 +02001664static void b43_update_templates(struct b43_wl *wl)
Michael Buesche4d6b792007-09-18 15:39:42 -04001665{
Johannes Berg9d139c82008-07-09 14:40:37 +02001666 struct sk_buff *beacon;
1667
Michael Buesche66fee62007-12-26 17:47:10 +01001668 /* This is the top half of the ansynchronous beacon update.
1669 * The bottom half is the beacon IRQ.
1670 * Beacon update must be asynchronous to avoid sending an
1671 * invalid beacon. This can happen for example, if the firmware
1672 * transmits a beacon while we are updating it. */
Michael Buesche4d6b792007-09-18 15:39:42 -04001673
Johannes Berg9d139c82008-07-09 14:40:37 +02001674 /* We could modify the existing beacon and set the aid bit in
1675 * the TIM field, but that would probably require resizing and
1676 * moving of data within the beacon template.
1677 * Simply request a new beacon and let mac80211 do the hard work. */
1678 beacon = ieee80211_beacon_get(wl->hw, wl->vif);
1679 if (unlikely(!beacon))
1680 return;
1681
Michael Buesche66fee62007-12-26 17:47:10 +01001682 if (wl->current_beacon)
1683 dev_kfree_skb_any(wl->current_beacon);
1684 wl->current_beacon = beacon;
1685 wl->beacon0_uploaded = 0;
1686 wl->beacon1_uploaded = 0;
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -04001687 ieee80211_queue_work(wl->hw, &wl->beacon_update_trigger);
Michael Buesche4d6b792007-09-18 15:39:42 -04001688}
1689
Michael Buesche4d6b792007-09-18 15:39:42 -04001690static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int)
1691{
1692 b43_time_lock(dev);
Rafał Miłecki21d889d2011-05-18 02:06:38 +02001693 if (dev->dev->core_rev >= 3) {
Michael Buescha82d9922008-04-04 21:40:06 +02001694 b43_write32(dev, B43_MMIO_TSF_CFP_REP, (beacon_int << 16));
1695 b43_write32(dev, B43_MMIO_TSF_CFP_START, (beacon_int << 10));
Michael Buesche4d6b792007-09-18 15:39:42 -04001696 } else {
1697 b43_write16(dev, 0x606, (beacon_int >> 6));
1698 b43_write16(dev, 0x610, beacon_int);
1699 }
1700 b43_time_unlock(dev);
Michael Buescha82d9922008-04-04 21:40:06 +02001701 b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int);
Michael Buesche4d6b792007-09-18 15:39:42 -04001702}
1703
Michael Bueschafa83e22008-05-19 23:51:37 +02001704static void b43_handle_firmware_panic(struct b43_wldev *dev)
1705{
1706 u16 reason;
1707
1708 /* Read the register that contains the reason code for the panic. */
1709 reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_FWPANIC_REASON_REG);
1710 b43err(dev->wl, "Whoopsy, firmware panic! Reason: %u\n", reason);
1711
1712 switch (reason) {
1713 default:
1714 b43dbg(dev->wl, "The panic reason is unknown.\n");
1715 /* fallthrough */
1716 case B43_FWPANIC_DIE:
1717 /* Do not restart the controller or firmware.
1718 * The device is nonfunctional from now on.
1719 * Restarting would result in this panic to trigger again,
1720 * so we avoid that recursion. */
1721 break;
1722 case B43_FWPANIC_RESTART:
1723 b43_controller_restart(dev, "Microcode panic");
1724 break;
1725 }
1726}
1727
Michael Buesche4d6b792007-09-18 15:39:42 -04001728static void handle_irq_ucode_debug(struct b43_wldev *dev)
1729{
Michael Buesche48b0ee2008-05-17 22:44:35 +02001730 unsigned int i, cnt;
Michael Buesch53c06852008-05-20 00:24:36 +02001731 u16 reason, marker_id, marker_line;
Michael Buesche48b0ee2008-05-17 22:44:35 +02001732 __le16 *buf;
1733
1734 /* The proprietary firmware doesn't have this IRQ. */
1735 if (!dev->fw.opensource)
1736 return;
1737
Michael Bueschafa83e22008-05-19 23:51:37 +02001738 /* Read the register that contains the reason code for this IRQ. */
1739 reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_DEBUGIRQ_REASON_REG);
1740
Michael Buesche48b0ee2008-05-17 22:44:35 +02001741 switch (reason) {
1742 case B43_DEBUGIRQ_PANIC:
Michael Bueschafa83e22008-05-19 23:51:37 +02001743 b43_handle_firmware_panic(dev);
Michael Buesche48b0ee2008-05-17 22:44:35 +02001744 break;
1745 case B43_DEBUGIRQ_DUMP_SHM:
1746 if (!B43_DEBUG)
1747 break; /* Only with driver debugging enabled. */
1748 buf = kmalloc(4096, GFP_ATOMIC);
1749 if (!buf) {
1750 b43dbg(dev->wl, "SHM-dump: Failed to allocate memory\n");
1751 goto out;
1752 }
1753 for (i = 0; i < 4096; i += 2) {
1754 u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, i);
1755 buf[i / 2] = cpu_to_le16(tmp);
1756 }
1757 b43info(dev->wl, "Shared memory dump:\n");
1758 print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET,
1759 16, 2, buf, 4096, 1);
1760 kfree(buf);
1761 break;
1762 case B43_DEBUGIRQ_DUMP_REGS:
1763 if (!B43_DEBUG)
1764 break; /* Only with driver debugging enabled. */
1765 b43info(dev->wl, "Microcode register dump:\n");
1766 for (i = 0, cnt = 0; i < 64; i++) {
1767 u16 tmp = b43_shm_read16(dev, B43_SHM_SCRATCH, i);
1768 if (cnt == 0)
1769 printk(KERN_INFO);
1770 printk("r%02u: 0x%04X ", i, tmp);
1771 cnt++;
1772 if (cnt == 6) {
1773 printk("\n");
1774 cnt = 0;
1775 }
1776 }
1777 printk("\n");
1778 break;
Michael Buesch53c06852008-05-20 00:24:36 +02001779 case B43_DEBUGIRQ_MARKER:
1780 if (!B43_DEBUG)
1781 break; /* Only with driver debugging enabled. */
1782 marker_id = b43_shm_read16(dev, B43_SHM_SCRATCH,
1783 B43_MARKER_ID_REG);
1784 marker_line = b43_shm_read16(dev, B43_SHM_SCRATCH,
1785 B43_MARKER_LINE_REG);
1786 b43info(dev->wl, "The firmware just executed the MARKER(%u) "
1787 "at line number %u\n",
1788 marker_id, marker_line);
1789 break;
Michael Buesche48b0ee2008-05-17 22:44:35 +02001790 default:
1791 b43dbg(dev->wl, "Debug-IRQ triggered for unknown reason: %u\n",
1792 reason);
1793 }
1794out:
Michael Bueschafa83e22008-05-19 23:51:37 +02001795 /* Acknowledge the debug-IRQ, so the firmware can continue. */
1796 b43_shm_write16(dev, B43_SHM_SCRATCH,
1797 B43_DEBUGIRQ_REASON_REG, B43_DEBUGIRQ_ACK);
Michael Buesche4d6b792007-09-18 15:39:42 -04001798}
1799
Michael Buesch36dbd952009-09-04 22:51:29 +02001800static void b43_do_interrupt_thread(struct b43_wldev *dev)
Michael Buesche4d6b792007-09-18 15:39:42 -04001801{
1802 u32 reason;
1803 u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
1804 u32 merged_dma_reason = 0;
Michael Buesch21954c32007-09-27 15:31:40 +02001805 int i;
Michael Buesche4d6b792007-09-18 15:39:42 -04001806
Michael Buesch36dbd952009-09-04 22:51:29 +02001807 if (unlikely(b43_status(dev) != B43_STAT_STARTED))
1808 return;
Michael Buesche4d6b792007-09-18 15:39:42 -04001809
1810 reason = dev->irq_reason;
1811 for (i = 0; i < ARRAY_SIZE(dma_reason); i++) {
1812 dma_reason[i] = dev->dma_reason[i];
1813 merged_dma_reason |= dma_reason[i];
1814 }
1815
1816 if (unlikely(reason & B43_IRQ_MAC_TXERR))
1817 b43err(dev->wl, "MAC transmission error\n");
1818
Stefano Brivio00e0b8c2007-11-25 11:10:33 +01001819 if (unlikely(reason & B43_IRQ_PHY_TXERR)) {
Michael Buesche4d6b792007-09-18 15:39:42 -04001820 b43err(dev->wl, "PHY transmission error\n");
Stefano Brivio00e0b8c2007-11-25 11:10:33 +01001821 rmb();
1822 if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) {
1823 atomic_set(&dev->phy.txerr_cnt,
1824 B43_PHY_TX_BADNESS_LIMIT);
1825 b43err(dev->wl, "Too many PHY TX errors, "
1826 "restarting the controller\n");
1827 b43_controller_restart(dev, "PHY TX errors");
1828 }
1829 }
Michael Buesche4d6b792007-09-18 15:39:42 -04001830
1831 if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK |
1832 B43_DMAIRQ_NONFATALMASK))) {
1833 if (merged_dma_reason & B43_DMAIRQ_FATALMASK) {
1834 b43err(dev->wl, "Fatal DMA error: "
1835 "0x%08X, 0x%08X, 0x%08X, "
1836 "0x%08X, 0x%08X, 0x%08X\n",
1837 dma_reason[0], dma_reason[1],
1838 dma_reason[2], dma_reason[3],
1839 dma_reason[4], dma_reason[5]);
Larry Finger214ac9a2009-12-09 13:25:56 -06001840 b43err(dev->wl, "This device does not support DMA "
Larry Fingerbb64d952010-06-19 08:29:08 -05001841 "on your system. It will now be switched to PIO.\n");
Linus Torvalds9e3bd912010-02-26 10:34:27 -08001842 /* Fall back to PIO transfers if we get fatal DMA errors! */
1843 dev->use_pio = 1;
1844 b43_controller_restart(dev, "DMA error");
Michael Buesche4d6b792007-09-18 15:39:42 -04001845 return;
1846 }
1847 if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) {
1848 b43err(dev->wl, "DMA error: "
1849 "0x%08X, 0x%08X, 0x%08X, "
1850 "0x%08X, 0x%08X, 0x%08X\n",
1851 dma_reason[0], dma_reason[1],
1852 dma_reason[2], dma_reason[3],
1853 dma_reason[4], dma_reason[5]);
1854 }
1855 }
1856
1857 if (unlikely(reason & B43_IRQ_UCODE_DEBUG))
1858 handle_irq_ucode_debug(dev);
1859 if (reason & B43_IRQ_TBTT_INDI)
1860 handle_irq_tbtt_indication(dev);
1861 if (reason & B43_IRQ_ATIM_END)
1862 handle_irq_atim_end(dev);
1863 if (reason & B43_IRQ_BEACON)
1864 handle_irq_beacon(dev);
1865 if (reason & B43_IRQ_PMQ)
1866 handle_irq_pmq(dev);
Michael Buesch21954c32007-09-27 15:31:40 +02001867 if (reason & B43_IRQ_TXFIFO_FLUSH_OK)
1868 ;/* TODO */
1869 if (reason & B43_IRQ_NOISESAMPLE_OK)
Michael Buesche4d6b792007-09-18 15:39:42 -04001870 handle_irq_noise(dev);
1871
1872 /* Check the DMA reason registers for received data. */
Michael Buesch5100d5a2008-03-29 21:01:16 +01001873 if (dma_reason[0] & B43_DMAIRQ_RX_DONE) {
1874 if (b43_using_pio_transfers(dev))
1875 b43_pio_rx(dev->pio.rx_queue);
1876 else
1877 b43_dma_rx(dev->dma.rx_ring);
1878 }
Michael Buesche4d6b792007-09-18 15:39:42 -04001879 B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE);
1880 B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE);
Michael Bueschb27faf82008-03-06 16:32:46 +01001881 B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE);
Michael Buesche4d6b792007-09-18 15:39:42 -04001882 B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE);
1883 B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE);
1884
Michael Buesch21954c32007-09-27 15:31:40 +02001885 if (reason & B43_IRQ_TX_OK)
Michael Buesche4d6b792007-09-18 15:39:42 -04001886 handle_irq_transmit_status(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04001887
Michael Buesch36dbd952009-09-04 22:51:29 +02001888 /* Re-enable interrupts on the device by restoring the current interrupt mask. */
Michael Buesch13790722009-04-08 21:26:27 +02001889 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask);
Michael Buesch990b86f2009-09-12 00:48:03 +02001890
1891#if B43_DEBUG
1892 if (b43_debug(dev, B43_DBG_VERBOSESTATS)) {
1893 dev->irq_count++;
1894 for (i = 0; i < ARRAY_SIZE(dev->irq_bit_count); i++) {
1895 if (reason & (1 << i))
1896 dev->irq_bit_count[i]++;
1897 }
1898 }
1899#endif
Michael Buesche4d6b792007-09-18 15:39:42 -04001900}
1901
Michael Buesch36dbd952009-09-04 22:51:29 +02001902/* Interrupt thread handler. Handles device interrupts in thread context. */
1903static irqreturn_t b43_interrupt_thread_handler(int irq, void *dev_id)
Michael Buesche4d6b792007-09-18 15:39:42 -04001904{
Michael Buesche4d6b792007-09-18 15:39:42 -04001905 struct b43_wldev *dev = dev_id;
Michael Buesch36dbd952009-09-04 22:51:29 +02001906
1907 mutex_lock(&dev->wl->mutex);
1908 b43_do_interrupt_thread(dev);
1909 mmiowb();
1910 mutex_unlock(&dev->wl->mutex);
1911
1912 return IRQ_HANDLED;
1913}
1914
1915static irqreturn_t b43_do_interrupt(struct b43_wldev *dev)
1916{
Michael Buesche4d6b792007-09-18 15:39:42 -04001917 u32 reason;
1918
Michael Buesch36dbd952009-09-04 22:51:29 +02001919 /* This code runs under wl->hardirq_lock, but _only_ on non-SDIO busses.
1920 * On SDIO, this runs under wl->mutex. */
Michael Buesche4d6b792007-09-18 15:39:42 -04001921
Michael Buesche4d6b792007-09-18 15:39:42 -04001922 reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
1923 if (reason == 0xffffffff) /* shared IRQ */
Michael Buesch36dbd952009-09-04 22:51:29 +02001924 return IRQ_NONE;
Michael Buesch13790722009-04-08 21:26:27 +02001925 reason &= dev->irq_mask;
Michael Buesche4d6b792007-09-18 15:39:42 -04001926 if (!reason)
Michael Buesch36dbd952009-09-04 22:51:29 +02001927 return IRQ_HANDLED;
Michael Buesche4d6b792007-09-18 15:39:42 -04001928
1929 dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON)
1930 & 0x0001DC00;
1931 dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON)
1932 & 0x0000DC00;
1933 dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON)
1934 & 0x0000DC00;
1935 dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON)
1936 & 0x0001DC00;
1937 dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON)
1938 & 0x0000DC00;
Michael Buesch13790722009-04-08 21:26:27 +02001939/* Unused ring
Michael Buesche4d6b792007-09-18 15:39:42 -04001940 dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON)
1941 & 0x0000DC00;
Michael Buesch13790722009-04-08 21:26:27 +02001942*/
Michael Buesche4d6b792007-09-18 15:39:42 -04001943
Michael Buesch36dbd952009-09-04 22:51:29 +02001944 /* ACK the interrupt. */
1945 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason);
1946 b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]);
1947 b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]);
1948 b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]);
1949 b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]);
1950 b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]);
1951/* Unused ring
1952 b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]);
1953*/
1954
1955 /* Disable IRQs on the device. The IRQ thread handler will re-enable them. */
Michael Buesch13790722009-04-08 21:26:27 +02001956 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0);
Michael Buesch36dbd952009-09-04 22:51:29 +02001957 /* Save the reason bitmasks for the IRQ thread handler. */
Michael Buesche4d6b792007-09-18 15:39:42 -04001958 dev->irq_reason = reason;
Michael Buesch36dbd952009-09-04 22:51:29 +02001959
1960 return IRQ_WAKE_THREAD;
1961}
1962
1963/* Interrupt handler top-half. This runs with interrupts disabled. */
1964static irqreturn_t b43_interrupt_handler(int irq, void *dev_id)
1965{
1966 struct b43_wldev *dev = dev_id;
1967 irqreturn_t ret;
1968
1969 if (unlikely(b43_status(dev) < B43_STAT_STARTED))
1970 return IRQ_NONE;
1971
1972 spin_lock(&dev->wl->hardirq_lock);
1973 ret = b43_do_interrupt(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04001974 mmiowb();
Michael Buesch36dbd952009-09-04 22:51:29 +02001975 spin_unlock(&dev->wl->hardirq_lock);
Michael Buesche4d6b792007-09-18 15:39:42 -04001976
1977 return ret;
1978}
1979
Albert Herranz3dbba8e2009-09-10 19:34:49 +02001980/* SDIO interrupt handler. This runs in process context. */
1981static void b43_sdio_interrupt_handler(struct b43_wldev *dev)
1982{
1983 struct b43_wl *wl = dev->wl;
Albert Herranz3dbba8e2009-09-10 19:34:49 +02001984 irqreturn_t ret;
1985
Albert Herranz3dbba8e2009-09-10 19:34:49 +02001986 mutex_lock(&wl->mutex);
Albert Herranz3dbba8e2009-09-10 19:34:49 +02001987
1988 ret = b43_do_interrupt(dev);
1989 if (ret == IRQ_WAKE_THREAD)
1990 b43_do_interrupt_thread(dev);
1991
Albert Herranz3dbba8e2009-09-10 19:34:49 +02001992 mutex_unlock(&wl->mutex);
1993}
1994
Michael Buesch1a9f5092009-01-23 21:21:51 +01001995void b43_do_release_fw(struct b43_firmware_file *fw)
Michael Buesch61cb5dd2008-01-21 19:55:09 +01001996{
1997 release_firmware(fw->data);
1998 fw->data = NULL;
1999 fw->filename = NULL;
2000}
2001
Michael Buesche4d6b792007-09-18 15:39:42 -04002002static void b43_release_firmware(struct b43_wldev *dev)
2003{
Michael Buesch1a9f5092009-01-23 21:21:51 +01002004 b43_do_release_fw(&dev->fw.ucode);
2005 b43_do_release_fw(&dev->fw.pcm);
2006 b43_do_release_fw(&dev->fw.initvals);
2007 b43_do_release_fw(&dev->fw.initvals_band);
Michael Buesche4d6b792007-09-18 15:39:42 -04002008}
2009
Michael Buescheb189d8b2008-01-28 14:47:41 -08002010static void b43_print_fw_helptext(struct b43_wl *wl, bool error)
Michael Buesche4d6b792007-09-18 15:39:42 -04002011{
Hannes Ederfc68ed42009-02-14 11:50:06 +00002012 const char text[] =
2013 "You must go to " \
2014 "http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware " \
2015 "and download the correct firmware for this driver version. " \
2016 "Please carefully read all instructions on this website.\n";
Michael Buescheb189d8b2008-01-28 14:47:41 -08002017
Michael Buescheb189d8b2008-01-28 14:47:41 -08002018 if (error)
2019 b43err(wl, text);
2020 else
2021 b43warn(wl, text);
Michael Buesche4d6b792007-09-18 15:39:42 -04002022}
2023
Michael Buesch1a9f5092009-01-23 21:21:51 +01002024int b43_do_request_fw(struct b43_request_fw_context *ctx,
2025 const char *name,
2026 struct b43_firmware_file *fw)
Michael Buesche4d6b792007-09-18 15:39:42 -04002027{
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002028 const struct firmware *blob;
Michael Buesche4d6b792007-09-18 15:39:42 -04002029 struct b43_fw_header *hdr;
2030 u32 size;
2031 int err;
2032
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002033 if (!name) {
2034 /* Don't fetch anything. Free possibly cached firmware. */
Michael Buesch1a9f5092009-01-23 21:21:51 +01002035 /* FIXME: We should probably keep it anyway, to save some headache
2036 * on suspend/resume with multiband devices. */
2037 b43_do_release_fw(fw);
Michael Buesche4d6b792007-09-18 15:39:42 -04002038 return 0;
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002039 }
2040 if (fw->filename) {
Michael Buesch1a9f5092009-01-23 21:21:51 +01002041 if ((fw->type == ctx->req_type) &&
2042 (strcmp(fw->filename, name) == 0))
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002043 return 0; /* Already have this fw. */
2044 /* Free the cached firmware first. */
Michael Buesch1a9f5092009-01-23 21:21:51 +01002045 /* FIXME: We should probably do this later after we successfully
2046 * got the new fw. This could reduce headache with multiband devices.
2047 * We could also redesign this to cache the firmware for all possible
2048 * bands all the time. */
2049 b43_do_release_fw(fw);
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002050 }
Michael Buesche4d6b792007-09-18 15:39:42 -04002051
Michael Buesch1a9f5092009-01-23 21:21:51 +01002052 switch (ctx->req_type) {
2053 case B43_FWTYPE_PROPRIETARY:
2054 snprintf(ctx->fwname, sizeof(ctx->fwname),
2055 "b43%s/%s.fw",
2056 modparam_fwpostfix, name);
2057 break;
2058 case B43_FWTYPE_OPENSOURCE:
2059 snprintf(ctx->fwname, sizeof(ctx->fwname),
2060 "b43-open%s/%s.fw",
2061 modparam_fwpostfix, name);
2062 break;
2063 default:
2064 B43_WARN_ON(1);
2065 return -ENOSYS;
2066 }
Rafał Miłeckia18c7152011-05-18 02:06:40 +02002067 err = request_firmware(&blob, ctx->fwname, ctx->dev->dev->dev);
Michael Buesch68217832008-05-17 23:43:57 +02002068 if (err == -ENOENT) {
Michael Buesch1a9f5092009-01-23 21:21:51 +01002069 snprintf(ctx->errors[ctx->req_type],
2070 sizeof(ctx->errors[ctx->req_type]),
2071 "Firmware file \"%s\" not found\n", ctx->fwname);
Michael Buesch68217832008-05-17 23:43:57 +02002072 return err;
2073 } else if (err) {
Michael Buesch1a9f5092009-01-23 21:21:51 +01002074 snprintf(ctx->errors[ctx->req_type],
2075 sizeof(ctx->errors[ctx->req_type]),
2076 "Firmware file \"%s\" request failed (err=%d)\n",
2077 ctx->fwname, err);
Michael Buesche4d6b792007-09-18 15:39:42 -04002078 return err;
2079 }
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002080 if (blob->size < sizeof(struct b43_fw_header))
Michael Buesche4d6b792007-09-18 15:39:42 -04002081 goto err_format;
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002082 hdr = (struct b43_fw_header *)(blob->data);
Michael Buesche4d6b792007-09-18 15:39:42 -04002083 switch (hdr->type) {
2084 case B43_FW_TYPE_UCODE:
2085 case B43_FW_TYPE_PCM:
2086 size = be32_to_cpu(hdr->size);
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002087 if (size != blob->size - sizeof(struct b43_fw_header))
Michael Buesche4d6b792007-09-18 15:39:42 -04002088 goto err_format;
2089 /* fallthrough */
2090 case B43_FW_TYPE_IV:
2091 if (hdr->ver != 1)
2092 goto err_format;
2093 break;
2094 default:
2095 goto err_format;
2096 }
2097
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002098 fw->data = blob;
2099 fw->filename = name;
Michael Buesch1a9f5092009-01-23 21:21:51 +01002100 fw->type = ctx->req_type;
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002101
2102 return 0;
Michael Buesche4d6b792007-09-18 15:39:42 -04002103
2104err_format:
Michael Buesch1a9f5092009-01-23 21:21:51 +01002105 snprintf(ctx->errors[ctx->req_type],
2106 sizeof(ctx->errors[ctx->req_type]),
2107 "Firmware file \"%s\" format error.\n", ctx->fwname);
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002108 release_firmware(blob);
2109
Michael Buesche4d6b792007-09-18 15:39:42 -04002110 return -EPROTO;
2111}
2112
Michael Buesch1a9f5092009-01-23 21:21:51 +01002113static int b43_try_request_fw(struct b43_request_fw_context *ctx)
Michael Buesche4d6b792007-09-18 15:39:42 -04002114{
Michael Buesch1a9f5092009-01-23 21:21:51 +01002115 struct b43_wldev *dev = ctx->dev;
2116 struct b43_firmware *fw = &ctx->dev->fw;
Rafał Miłecki21d889d2011-05-18 02:06:38 +02002117 const u8 rev = ctx->dev->dev->core_rev;
Michael Buesche4d6b792007-09-18 15:39:42 -04002118 const char *filename;
2119 u32 tmshigh;
2120 int err;
2121
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002122 /* Get microcode */
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002123 if ((rev >= 5) && (rev <= 10))
2124 filename = "ucode5";
2125 else if ((rev >= 11) && (rev <= 12))
2126 filename = "ucode11";
Gábor Stefanik759b9732009-08-14 14:39:53 +02002127 else if (rev == 13)
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002128 filename = "ucode13";
Gábor Stefanik759b9732009-08-14 14:39:53 +02002129 else if (rev == 14)
2130 filename = "ucode14";
Rafał Miłeckie41596a2010-12-21 11:50:19 +01002131 else if (rev == 15)
Gábor Stefanik759b9732009-08-14 14:39:53 +02002132 filename = "ucode15";
Rafał Miłeckie41596a2010-12-21 11:50:19 +01002133 else if ((rev >= 16) && (rev <= 20))
2134 filename = "ucode16_mimo";
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002135 else
2136 goto err_no_ucode;
Michael Buesch1a9f5092009-01-23 21:21:51 +01002137 err = b43_do_request_fw(ctx, filename, &fw->ucode);
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002138 if (err)
2139 goto err_load;
2140
2141 /* Get PCM code */
2142 if ((rev >= 5) && (rev <= 10))
2143 filename = "pcm5";
2144 else if (rev >= 11)
2145 filename = NULL;
2146 else
2147 goto err_no_pcm;
Michael Buesch68217832008-05-17 23:43:57 +02002148 fw->pcm_request_failed = 0;
Michael Buesch1a9f5092009-01-23 21:21:51 +01002149 err = b43_do_request_fw(ctx, filename, &fw->pcm);
Michael Buesch68217832008-05-17 23:43:57 +02002150 if (err == -ENOENT) {
2151 /* We did not find a PCM file? Not fatal, but
2152 * core rev <= 10 must do without hwcrypto then. */
2153 fw->pcm_request_failed = 1;
2154 } else if (err)
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002155 goto err_load;
2156
2157 /* Get initvals */
2158 switch (dev->phy.type) {
2159 case B43_PHYTYPE_A:
2160 if ((rev >= 5) && (rev <= 10)) {
Rafał Miłeckid48ae5c2011-05-19 15:11:26 +02002161 tmshigh = ssb_read32(dev->dev->sdev, SSB_TMSHIGH);
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002162 if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
2163 filename = "a0g1initvals5";
2164 else
2165 filename = "a0g0initvals5";
2166 } else
2167 goto err_no_initvals;
2168 break;
2169 case B43_PHYTYPE_G:
Michael Buesche4d6b792007-09-18 15:39:42 -04002170 if ((rev >= 5) && (rev <= 10))
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002171 filename = "b0g0initvals5";
Michael Buesche4d6b792007-09-18 15:39:42 -04002172 else if (rev >= 13)
Larry.Finger@lwfinger.nete9304882008-05-15 14:07:36 -05002173 filename = "b0g0initvals13";
Michael Buesche4d6b792007-09-18 15:39:42 -04002174 else
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002175 goto err_no_initvals;
2176 break;
2177 case B43_PHYTYPE_N:
Rafał Miłeckie41596a2010-12-21 11:50:19 +01002178 if (rev >= 16)
2179 filename = "n0initvals16";
2180 else if ((rev >= 11) && (rev <= 12))
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002181 filename = "n0initvals11";
2182 else
2183 goto err_no_initvals;
2184 break;
Gábor Stefanik759b9732009-08-14 14:39:53 +02002185 case B43_PHYTYPE_LP:
2186 if (rev == 13)
2187 filename = "lp0initvals13";
2188 else if (rev == 14)
2189 filename = "lp0initvals14";
2190 else if (rev >= 15)
2191 filename = "lp0initvals15";
2192 else
2193 goto err_no_initvals;
2194 break;
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002195 default:
2196 goto err_no_initvals;
Michael Buesche4d6b792007-09-18 15:39:42 -04002197 }
Michael Buesch1a9f5092009-01-23 21:21:51 +01002198 err = b43_do_request_fw(ctx, filename, &fw->initvals);
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002199 if (err)
2200 goto err_load;
2201
2202 /* Get bandswitch initvals */
2203 switch (dev->phy.type) {
2204 case B43_PHYTYPE_A:
2205 if ((rev >= 5) && (rev <= 10)) {
Rafał Miłeckid48ae5c2011-05-19 15:11:26 +02002206 tmshigh = ssb_read32(dev->dev->sdev, SSB_TMSHIGH);
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002207 if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
2208 filename = "a0g1bsinitvals5";
2209 else
2210 filename = "a0g0bsinitvals5";
2211 } else if (rev >= 11)
2212 filename = NULL;
2213 else
2214 goto err_no_initvals;
2215 break;
2216 case B43_PHYTYPE_G:
Michael Buesche4d6b792007-09-18 15:39:42 -04002217 if ((rev >= 5) && (rev <= 10))
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002218 filename = "b0g0bsinitvals5";
Michael Buesche4d6b792007-09-18 15:39:42 -04002219 else if (rev >= 11)
2220 filename = NULL;
2221 else
Michael Buesche4d6b792007-09-18 15:39:42 -04002222 goto err_no_initvals;
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002223 break;
2224 case B43_PHYTYPE_N:
Rafał Miłeckie41596a2010-12-21 11:50:19 +01002225 if (rev >= 16)
2226 filename = "n0bsinitvals16";
2227 else if ((rev >= 11) && (rev <= 12))
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002228 filename = "n0bsinitvals11";
2229 else
Michael Buesche4d6b792007-09-18 15:39:42 -04002230 goto err_no_initvals;
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002231 break;
Gábor Stefanik759b9732009-08-14 14:39:53 +02002232 case B43_PHYTYPE_LP:
2233 if (rev == 13)
2234 filename = "lp0bsinitvals13";
2235 else if (rev == 14)
2236 filename = "lp0bsinitvals14";
2237 else if (rev >= 15)
2238 filename = "lp0bsinitvals15";
2239 else
2240 goto err_no_initvals;
2241 break;
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002242 default:
2243 goto err_no_initvals;
Michael Buesche4d6b792007-09-18 15:39:42 -04002244 }
Michael Buesch1a9f5092009-01-23 21:21:51 +01002245 err = b43_do_request_fw(ctx, filename, &fw->initvals_band);
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002246 if (err)
2247 goto err_load;
Michael Buesche4d6b792007-09-18 15:39:42 -04002248
2249 return 0;
2250
Michael Buesche4d6b792007-09-18 15:39:42 -04002251err_no_ucode:
Michael Buesch1a9f5092009-01-23 21:21:51 +01002252 err = ctx->fatal_failure = -EOPNOTSUPP;
2253 b43err(dev->wl, "The driver does not know which firmware (ucode) "
2254 "is required for your device (wl-core rev %u)\n", rev);
Michael Buesche4d6b792007-09-18 15:39:42 -04002255 goto error;
2256
2257err_no_pcm:
Michael Buesch1a9f5092009-01-23 21:21:51 +01002258 err = ctx->fatal_failure = -EOPNOTSUPP;
2259 b43err(dev->wl, "The driver does not know which firmware (PCM) "
2260 "is required for your device (wl-core rev %u)\n", rev);
Michael Buesche4d6b792007-09-18 15:39:42 -04002261 goto error;
2262
2263err_no_initvals:
Michael Buesch1a9f5092009-01-23 21:21:51 +01002264 err = ctx->fatal_failure = -EOPNOTSUPP;
2265 b43err(dev->wl, "The driver does not know which firmware (initvals) "
2266 "is required for your device (wl-core rev %u)\n", rev);
2267 goto error;
2268
2269err_load:
2270 /* We failed to load this firmware image. The error message
2271 * already is in ctx->errors. Return and let our caller decide
2272 * what to do. */
Michael Buesche4d6b792007-09-18 15:39:42 -04002273 goto error;
2274
2275error:
2276 b43_release_firmware(dev);
2277 return err;
2278}
2279
Michael Buesch1a9f5092009-01-23 21:21:51 +01002280static int b43_request_firmware(struct b43_wldev *dev)
2281{
2282 struct b43_request_fw_context *ctx;
2283 unsigned int i;
2284 int err;
2285 const char *errmsg;
2286
2287 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
2288 if (!ctx)
2289 return -ENOMEM;
2290 ctx->dev = dev;
2291
2292 ctx->req_type = B43_FWTYPE_PROPRIETARY;
2293 err = b43_try_request_fw(ctx);
2294 if (!err)
2295 goto out; /* Successfully loaded it. */
2296 err = ctx->fatal_failure;
2297 if (err)
2298 goto out;
2299
2300 ctx->req_type = B43_FWTYPE_OPENSOURCE;
2301 err = b43_try_request_fw(ctx);
2302 if (!err)
2303 goto out; /* Successfully loaded it. */
2304 err = ctx->fatal_failure;
2305 if (err)
2306 goto out;
2307
2308 /* Could not find a usable firmware. Print the errors. */
2309 for (i = 0; i < B43_NR_FWTYPES; i++) {
2310 errmsg = ctx->errors[i];
2311 if (strlen(errmsg))
2312 b43err(dev->wl, errmsg);
2313 }
2314 b43_print_fw_helptext(dev->wl, 1);
2315 err = -ENOENT;
2316
2317out:
2318 kfree(ctx);
2319 return err;
2320}
2321
Michael Buesche4d6b792007-09-18 15:39:42 -04002322static int b43_upload_microcode(struct b43_wldev *dev)
2323{
John W. Linville652caa52010-07-29 13:27:28 -04002324 struct wiphy *wiphy = dev->wl->hw->wiphy;
Michael Buesche4d6b792007-09-18 15:39:42 -04002325 const size_t hdr_len = sizeof(struct b43_fw_header);
2326 const __be32 *data;
2327 unsigned int i, len;
2328 u16 fwrev, fwpatch, fwdate, fwtime;
Michael Buesch1f7d87b2008-01-22 20:23:34 +01002329 u32 tmp, macctl;
Michael Buesche4d6b792007-09-18 15:39:42 -04002330 int err = 0;
2331
Michael Buesch1f7d87b2008-01-22 20:23:34 +01002332 /* Jump the microcode PSM to offset 0 */
2333 macctl = b43_read32(dev, B43_MMIO_MACCTL);
2334 B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN);
2335 macctl |= B43_MACCTL_PSM_JMP0;
2336 b43_write32(dev, B43_MMIO_MACCTL, macctl);
2337 /* Zero out all microcode PSM registers and shared memory. */
2338 for (i = 0; i < 64; i++)
2339 b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0);
2340 for (i = 0; i < 4096; i += 2)
2341 b43_shm_write16(dev, B43_SHM_SHARED, i, 0);
2342
Michael Buesche4d6b792007-09-18 15:39:42 -04002343 /* Upload Microcode. */
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002344 data = (__be32 *) (dev->fw.ucode.data->data + hdr_len);
2345 len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32);
Michael Buesche4d6b792007-09-18 15:39:42 -04002346 b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000);
2347 for (i = 0; i < len; i++) {
2348 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
2349 udelay(10);
2350 }
2351
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002352 if (dev->fw.pcm.data) {
Michael Buesche4d6b792007-09-18 15:39:42 -04002353 /* Upload PCM data. */
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002354 data = (__be32 *) (dev->fw.pcm.data->data + hdr_len);
2355 len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32);
Michael Buesche4d6b792007-09-18 15:39:42 -04002356 b43_shm_control_word(dev, B43_SHM_HW, 0x01EA);
2357 b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000);
2358 /* No need for autoinc bit in SHM_HW */
2359 b43_shm_control_word(dev, B43_SHM_HW, 0x01EB);
2360 for (i = 0; i < len; i++) {
2361 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
2362 udelay(10);
2363 }
2364 }
2365
2366 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL);
Michael Buesch1f7d87b2008-01-22 20:23:34 +01002367
2368 /* Start the microcode PSM */
2369 macctl = b43_read32(dev, B43_MMIO_MACCTL);
2370 macctl &= ~B43_MACCTL_PSM_JMP0;
2371 macctl |= B43_MACCTL_PSM_RUN;
2372 b43_write32(dev, B43_MMIO_MACCTL, macctl);
Michael Buesche4d6b792007-09-18 15:39:42 -04002373
2374 /* Wait for the microcode to load and respond */
2375 i = 0;
2376 while (1) {
2377 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2378 if (tmp == B43_IRQ_MAC_SUSPENDED)
2379 break;
2380 i++;
Michael Buesch1f7d87b2008-01-22 20:23:34 +01002381 if (i >= 20) {
Michael Buesche4d6b792007-09-18 15:39:42 -04002382 b43err(dev->wl, "Microcode not responding\n");
Michael Buescheb189d8b2008-01-28 14:47:41 -08002383 b43_print_fw_helptext(dev->wl, 1);
Michael Buesche4d6b792007-09-18 15:39:42 -04002384 err = -ENODEV;
Michael Buesch1f7d87b2008-01-22 20:23:34 +01002385 goto error;
Michael Buesche4d6b792007-09-18 15:39:42 -04002386 }
Michael Buesche175e992009-09-11 18:31:32 +02002387 msleep(50);
Michael Buesche4d6b792007-09-18 15:39:42 -04002388 }
2389 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */
2390
2391 /* Get and check the revisions. */
2392 fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV);
2393 fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH);
2394 fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE);
2395 fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME);
2396
2397 if (fwrev <= 0x128) {
2398 b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from "
2399 "binary drivers older than version 4.x is unsupported. "
2400 "You must upgrade your firmware files.\n");
Michael Buescheb189d8b2008-01-28 14:47:41 -08002401 b43_print_fw_helptext(dev->wl, 1);
Michael Buesche4d6b792007-09-18 15:39:42 -04002402 err = -EOPNOTSUPP;
Michael Buesch1f7d87b2008-01-22 20:23:34 +01002403 goto error;
Michael Buesche4d6b792007-09-18 15:39:42 -04002404 }
Michael Buesche4d6b792007-09-18 15:39:42 -04002405 dev->fw.rev = fwrev;
2406 dev->fw.patch = fwpatch;
Michael Buesche48b0ee2008-05-17 22:44:35 +02002407 dev->fw.opensource = (fwdate == 0xFFFF);
2408
Michael Buesch403a3a12009-06-08 21:04:57 +02002409 /* Default to use-all-queues. */
2410 dev->wl->hw->queues = dev->wl->mac80211_initially_registered_queues;
2411 dev->qos_enabled = !!modparam_qos;
2412 /* Default to firmware/hardware crypto acceleration. */
2413 dev->hwcrypto_enabled = 1;
2414
Michael Buesche48b0ee2008-05-17 22:44:35 +02002415 if (dev->fw.opensource) {
Michael Buesch403a3a12009-06-08 21:04:57 +02002416 u16 fwcapa;
2417
Michael Buesche48b0ee2008-05-17 22:44:35 +02002418 /* Patchlevel info is encoded in the "time" field. */
2419 dev->fw.patch = fwtime;
Michael Buesch403a3a12009-06-08 21:04:57 +02002420 b43info(dev->wl, "Loading OpenSource firmware version %u.%u\n",
2421 dev->fw.rev, dev->fw.patch);
2422
2423 fwcapa = b43_fwcapa_read(dev);
2424 if (!(fwcapa & B43_FWCAPA_HWCRYPTO) || dev->fw.pcm_request_failed) {
2425 b43info(dev->wl, "Hardware crypto acceleration not supported by firmware\n");
2426 /* Disable hardware crypto and fall back to software crypto. */
2427 dev->hwcrypto_enabled = 0;
2428 }
2429 if (!(fwcapa & B43_FWCAPA_QOS)) {
2430 b43info(dev->wl, "QoS not supported by firmware\n");
2431 /* Disable QoS. Tweak hw->queues to 1. It will be restored before
2432 * ieee80211_unregister to make sure the networking core can
2433 * properly free possible resources. */
2434 dev->wl->hw->queues = 1;
2435 dev->qos_enabled = 0;
2436 }
Michael Buesche48b0ee2008-05-17 22:44:35 +02002437 } else {
2438 b43info(dev->wl, "Loading firmware version %u.%u "
2439 "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n",
2440 fwrev, fwpatch,
2441 (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
2442 (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F);
Michael Buesch68217832008-05-17 23:43:57 +02002443 if (dev->fw.pcm_request_failed) {
2444 b43warn(dev->wl, "No \"pcm5.fw\" firmware file found. "
2445 "Hardware accelerated cryptography is disabled.\n");
2446 b43_print_fw_helptext(dev->wl, 0);
2447 }
Michael Buesche48b0ee2008-05-17 22:44:35 +02002448 }
Michael Buesche4d6b792007-09-18 15:39:42 -04002449
John W. Linville652caa52010-07-29 13:27:28 -04002450 snprintf(wiphy->fw_version, sizeof(wiphy->fw_version), "%u.%u",
2451 dev->fw.rev, dev->fw.patch);
Rafał Miłecki21d889d2011-05-18 02:06:38 +02002452 wiphy->hw_version = dev->dev->core_id;
John W. Linville652caa52010-07-29 13:27:28 -04002453
Michael Buescheb189d8b2008-01-28 14:47:41 -08002454 if (b43_is_old_txhdr_format(dev)) {
Michael Bueschc5572892008-12-27 18:26:39 +01002455 /* We're over the deadline, but we keep support for old fw
2456 * until it turns out to be in major conflict with something new. */
Michael Buescheb189d8b2008-01-28 14:47:41 -08002457 b43warn(dev->wl, "You are using an old firmware image. "
Michael Bueschc5572892008-12-27 18:26:39 +01002458 "Support for old firmware will be removed soon "
2459 "(official deadline was July 2008).\n");
Michael Buescheb189d8b2008-01-28 14:47:41 -08002460 b43_print_fw_helptext(dev->wl, 0);
2461 }
2462
Michael Buesch1f7d87b2008-01-22 20:23:34 +01002463 return 0;
2464
2465error:
2466 macctl = b43_read32(dev, B43_MMIO_MACCTL);
2467 macctl &= ~B43_MACCTL_PSM_RUN;
2468 macctl |= B43_MACCTL_PSM_JMP0;
2469 b43_write32(dev, B43_MMIO_MACCTL, macctl);
2470
Michael Buesche4d6b792007-09-18 15:39:42 -04002471 return err;
2472}
2473
2474static int b43_write_initvals(struct b43_wldev *dev,
2475 const struct b43_iv *ivals,
2476 size_t count,
2477 size_t array_size)
2478{
2479 const struct b43_iv *iv;
2480 u16 offset;
2481 size_t i;
2482 bool bit32;
2483
2484 BUILD_BUG_ON(sizeof(struct b43_iv) != 6);
2485 iv = ivals;
2486 for (i = 0; i < count; i++) {
2487 if (array_size < sizeof(iv->offset_size))
2488 goto err_format;
2489 array_size -= sizeof(iv->offset_size);
2490 offset = be16_to_cpu(iv->offset_size);
2491 bit32 = !!(offset & B43_IV_32BIT);
2492 offset &= B43_IV_OFFSET_MASK;
2493 if (offset >= 0x1000)
2494 goto err_format;
2495 if (bit32) {
2496 u32 value;
2497
2498 if (array_size < sizeof(iv->data.d32))
2499 goto err_format;
2500 array_size -= sizeof(iv->data.d32);
2501
Harvey Harrison533dd1b2008-04-29 01:03:36 -07002502 value = get_unaligned_be32(&iv->data.d32);
Michael Buesche4d6b792007-09-18 15:39:42 -04002503 b43_write32(dev, offset, value);
2504
2505 iv = (const struct b43_iv *)((const uint8_t *)iv +
2506 sizeof(__be16) +
2507 sizeof(__be32));
2508 } else {
2509 u16 value;
2510
2511 if (array_size < sizeof(iv->data.d16))
2512 goto err_format;
2513 array_size -= sizeof(iv->data.d16);
2514
2515 value = be16_to_cpu(iv->data.d16);
2516 b43_write16(dev, offset, value);
2517
2518 iv = (const struct b43_iv *)((const uint8_t *)iv +
2519 sizeof(__be16) +
2520 sizeof(__be16));
2521 }
2522 }
2523 if (array_size)
2524 goto err_format;
2525
2526 return 0;
2527
2528err_format:
2529 b43err(dev->wl, "Initial Values Firmware file-format error.\n");
Michael Buescheb189d8b2008-01-28 14:47:41 -08002530 b43_print_fw_helptext(dev->wl, 1);
Michael Buesche4d6b792007-09-18 15:39:42 -04002531
2532 return -EPROTO;
2533}
2534
2535static int b43_upload_initvals(struct b43_wldev *dev)
2536{
2537 const size_t hdr_len = sizeof(struct b43_fw_header);
2538 const struct b43_fw_header *hdr;
2539 struct b43_firmware *fw = &dev->fw;
2540 const struct b43_iv *ivals;
2541 size_t count;
2542 int err;
2543
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002544 hdr = (const struct b43_fw_header *)(fw->initvals.data->data);
2545 ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len);
Michael Buesche4d6b792007-09-18 15:39:42 -04002546 count = be32_to_cpu(hdr->size);
2547 err = b43_write_initvals(dev, ivals, count,
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002548 fw->initvals.data->size - hdr_len);
Michael Buesche4d6b792007-09-18 15:39:42 -04002549 if (err)
2550 goto out;
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002551 if (fw->initvals_band.data) {
2552 hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data);
2553 ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len);
Michael Buesche4d6b792007-09-18 15:39:42 -04002554 count = be32_to_cpu(hdr->size);
2555 err = b43_write_initvals(dev, ivals, count,
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002556 fw->initvals_band.data->size - hdr_len);
Michael Buesche4d6b792007-09-18 15:39:42 -04002557 if (err)
2558 goto out;
2559 }
2560out:
2561
2562 return err;
2563}
2564
2565/* Initialize the GPIOs
2566 * http://bcm-specs.sipsolutions.net/GPIO
2567 */
Rafał Miłeckic4a2a082011-05-17 18:57:27 +02002568static struct ssb_device *b43_ssb_gpio_dev(struct b43_wldev *dev)
Michael Buesche4d6b792007-09-18 15:39:42 -04002569{
Rafał Miłeckid48ae5c2011-05-19 15:11:26 +02002570 struct ssb_bus *bus = dev->dev->sdev->bus;
Rafał Miłeckic4a2a082011-05-17 18:57:27 +02002571
2572#ifdef CONFIG_SSB_DRIVER_PCICORE
2573 return (bus->chipco.dev ? bus->chipco.dev : bus->pcicore.dev);
2574#else
2575 return bus->chipco.dev;
2576#endif
2577}
2578
Michael Buesche4d6b792007-09-18 15:39:42 -04002579static int b43_gpio_init(struct b43_wldev *dev)
2580{
Rafał Miłeckic4a2a082011-05-17 18:57:27 +02002581 struct ssb_device *gpiodev;
Michael Buesche4d6b792007-09-18 15:39:42 -04002582 u32 mask, set;
2583
2584 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2585 & ~B43_MACCTL_GPOUTSMSK);
2586
Michael Buesche4d6b792007-09-18 15:39:42 -04002587 b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK)
2588 | 0x000F);
2589
2590 mask = 0x0000001F;
2591 set = 0x0000000F;
Rafał Miłeckic244e082011-05-18 02:06:41 +02002592 if (dev->dev->chip_id == 0x4301) {
Michael Buesche4d6b792007-09-18 15:39:42 -04002593 mask |= 0x0060;
2594 set |= 0x0060;
2595 }
2596 if (0 /* FIXME: conditional unknown */ ) {
2597 b43_write16(dev, B43_MMIO_GPIO_MASK,
2598 b43_read16(dev, B43_MMIO_GPIO_MASK)
2599 | 0x0100);
2600 mask |= 0x0180;
2601 set |= 0x0180;
2602 }
Rafał Miłecki05814832011-05-18 02:06:39 +02002603 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL) {
Michael Buesche4d6b792007-09-18 15:39:42 -04002604 b43_write16(dev, B43_MMIO_GPIO_MASK,
2605 b43_read16(dev, B43_MMIO_GPIO_MASK)
2606 | 0x0200);
2607 mask |= 0x0200;
2608 set |= 0x0200;
2609 }
Rafał Miłecki21d889d2011-05-18 02:06:38 +02002610 if (dev->dev->core_rev >= 2)
Michael Buesche4d6b792007-09-18 15:39:42 -04002611 mask |= 0x0010; /* FIXME: This is redundant. */
2612
Rafał Miłeckic4a2a082011-05-17 18:57:27 +02002613 gpiodev = b43_ssb_gpio_dev(dev);
2614 if (gpiodev)
2615 ssb_write32(gpiodev, B43_GPIO_CONTROL,
2616 (ssb_read32(gpiodev, B43_GPIO_CONTROL)
2617 & mask) | set);
Michael Buesche4d6b792007-09-18 15:39:42 -04002618
2619 return 0;
2620}
2621
2622/* Turn off all GPIO stuff. Call this on module unload, for example. */
2623static void b43_gpio_cleanup(struct b43_wldev *dev)
2624{
Rafał Miłeckic4a2a082011-05-17 18:57:27 +02002625 struct ssb_device *gpiodev;
Michael Buesche4d6b792007-09-18 15:39:42 -04002626
Rafał Miłeckic4a2a082011-05-17 18:57:27 +02002627 gpiodev = b43_ssb_gpio_dev(dev);
2628 if (gpiodev)
2629 ssb_write32(gpiodev, B43_GPIO_CONTROL, 0);
Michael Buesche4d6b792007-09-18 15:39:42 -04002630}
2631
2632/* http://bcm-specs.sipsolutions.net/EnableMac */
Michael Bueschf5eda472008-04-20 16:03:32 +02002633void b43_mac_enable(struct b43_wldev *dev)
Michael Buesche4d6b792007-09-18 15:39:42 -04002634{
Michael Buesch923fd702008-06-20 18:02:08 +02002635 if (b43_debug(dev, B43_DBG_FIRMWARE)) {
2636 u16 fwstate;
2637
2638 fwstate = b43_shm_read16(dev, B43_SHM_SHARED,
2639 B43_SHM_SH_UCODESTAT);
2640 if ((fwstate != B43_SHM_SH_UCODESTAT_SUSP) &&
2641 (fwstate != B43_SHM_SH_UCODESTAT_SLEEP)) {
2642 b43err(dev->wl, "b43_mac_enable(): The firmware "
2643 "should be suspended, but current state is %u\n",
2644 fwstate);
2645 }
2646 }
2647
Michael Buesche4d6b792007-09-18 15:39:42 -04002648 dev->mac_suspended--;
2649 B43_WARN_ON(dev->mac_suspended < 0);
2650 if (dev->mac_suspended == 0) {
2651 b43_write32(dev, B43_MMIO_MACCTL,
2652 b43_read32(dev, B43_MMIO_MACCTL)
2653 | B43_MACCTL_ENABLED);
2654 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON,
2655 B43_IRQ_MAC_SUSPENDED);
2656 /* Commit writes */
2657 b43_read32(dev, B43_MMIO_MACCTL);
2658 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2659 b43_power_saving_ctl_bits(dev, 0);
2660 }
2661}
2662
2663/* http://bcm-specs.sipsolutions.net/SuspendMAC */
Michael Bueschf5eda472008-04-20 16:03:32 +02002664void b43_mac_suspend(struct b43_wldev *dev)
Michael Buesche4d6b792007-09-18 15:39:42 -04002665{
2666 int i;
2667 u32 tmp;
2668
Michael Buesch05b64b32007-09-28 16:19:03 +02002669 might_sleep();
Michael Buesche4d6b792007-09-18 15:39:42 -04002670 B43_WARN_ON(dev->mac_suspended < 0);
Michael Buesch05b64b32007-09-28 16:19:03 +02002671
Michael Buesche4d6b792007-09-18 15:39:42 -04002672 if (dev->mac_suspended == 0) {
2673 b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
2674 b43_write32(dev, B43_MMIO_MACCTL,
2675 b43_read32(dev, B43_MMIO_MACCTL)
2676 & ~B43_MACCTL_ENABLED);
2677 /* force pci to flush the write */
2678 b43_read32(dev, B43_MMIO_MACCTL);
Michael Bueschba380012008-04-15 21:13:36 +02002679 for (i = 35; i; i--) {
2680 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2681 if (tmp & B43_IRQ_MAC_SUSPENDED)
2682 goto out;
2683 udelay(10);
2684 }
2685 /* Hm, it seems this will take some time. Use msleep(). */
Michael Buesch05b64b32007-09-28 16:19:03 +02002686 for (i = 40; i; i--) {
Michael Buesche4d6b792007-09-18 15:39:42 -04002687 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2688 if (tmp & B43_IRQ_MAC_SUSPENDED)
2689 goto out;
Michael Buesch05b64b32007-09-28 16:19:03 +02002690 msleep(1);
Michael Buesche4d6b792007-09-18 15:39:42 -04002691 }
2692 b43err(dev->wl, "MAC suspend failed\n");
2693 }
Michael Buesch05b64b32007-09-28 16:19:03 +02002694out:
Michael Buesche4d6b792007-09-18 15:39:42 -04002695 dev->mac_suspended++;
2696}
2697
Rafał Miłecki858a1652011-05-10 16:05:33 +02002698/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/MacPhyClkSet */
2699void b43_mac_phy_clock_set(struct b43_wldev *dev, bool on)
2700{
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02002701 u32 tmslow = ssb_read32(dev->sdev, SSB_TMSLOW);
Rafał Miłecki858a1652011-05-10 16:05:33 +02002702 if (on)
2703 tmslow |= B43_TMSLOW_MACPHYCLKEN;
2704 else
2705 tmslow &= ~B43_TMSLOW_MACPHYCLKEN;
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02002706 ssb_write32(dev->sdev, SSB_TMSLOW, tmslow);
Rafał Miłecki858a1652011-05-10 16:05:33 +02002707}
2708
Michael Buesche4d6b792007-09-18 15:39:42 -04002709static void b43_adjust_opmode(struct b43_wldev *dev)
2710{
2711 struct b43_wl *wl = dev->wl;
2712 u32 ctl;
2713 u16 cfp_pretbtt;
2714
2715 ctl = b43_read32(dev, B43_MMIO_MACCTL);
2716 /* Reset status to STA infrastructure mode. */
2717 ctl &= ~B43_MACCTL_AP;
2718 ctl &= ~B43_MACCTL_KEEP_CTL;
2719 ctl &= ~B43_MACCTL_KEEP_BADPLCP;
2720 ctl &= ~B43_MACCTL_KEEP_BAD;
2721 ctl &= ~B43_MACCTL_PROMISC;
Johannes Berg4150c572007-09-17 01:29:23 -04002722 ctl &= ~B43_MACCTL_BEACPROMISC;
Michael Buesche4d6b792007-09-18 15:39:42 -04002723 ctl |= B43_MACCTL_INFRA;
2724
Johannes Berg05c914f2008-09-11 00:01:58 +02002725 if (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
2726 b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT))
Johannes Berg4150c572007-09-17 01:29:23 -04002727 ctl |= B43_MACCTL_AP;
Johannes Berg05c914f2008-09-11 00:01:58 +02002728 else if (b43_is_mode(wl, NL80211_IFTYPE_ADHOC))
Johannes Berg4150c572007-09-17 01:29:23 -04002729 ctl &= ~B43_MACCTL_INFRA;
2730
2731 if (wl->filter_flags & FIF_CONTROL)
Michael Buesche4d6b792007-09-18 15:39:42 -04002732 ctl |= B43_MACCTL_KEEP_CTL;
Johannes Berg4150c572007-09-17 01:29:23 -04002733 if (wl->filter_flags & FIF_FCSFAIL)
2734 ctl |= B43_MACCTL_KEEP_BAD;
2735 if (wl->filter_flags & FIF_PLCPFAIL)
2736 ctl |= B43_MACCTL_KEEP_BADPLCP;
2737 if (wl->filter_flags & FIF_PROMISC_IN_BSS)
Michael Buesche4d6b792007-09-18 15:39:42 -04002738 ctl |= B43_MACCTL_PROMISC;
Johannes Berg4150c572007-09-17 01:29:23 -04002739 if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
2740 ctl |= B43_MACCTL_BEACPROMISC;
2741
Michael Buesche4d6b792007-09-18 15:39:42 -04002742 /* Workaround: On old hardware the HW-MAC-address-filter
2743 * doesn't work properly, so always run promisc in filter
2744 * it in software. */
Rafał Miłecki21d889d2011-05-18 02:06:38 +02002745 if (dev->dev->core_rev <= 4)
Michael Buesche4d6b792007-09-18 15:39:42 -04002746 ctl |= B43_MACCTL_PROMISC;
2747
2748 b43_write32(dev, B43_MMIO_MACCTL, ctl);
2749
2750 cfp_pretbtt = 2;
2751 if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) {
Rafał Miłeckic244e082011-05-18 02:06:41 +02002752 if (dev->dev->chip_id == 0x4306 &&
2753 dev->dev->chip_rev == 3)
Michael Buesche4d6b792007-09-18 15:39:42 -04002754 cfp_pretbtt = 100;
2755 else
2756 cfp_pretbtt = 50;
2757 }
2758 b43_write16(dev, 0x612, cfp_pretbtt);
Michael Buesch09ebe2f2009-09-12 00:52:48 +02002759
2760 /* FIXME: We don't currently implement the PMQ mechanism,
2761 * so always disable it. If we want to implement PMQ,
2762 * we need to enable it here (clear DISCPMQ) in AP mode.
2763 */
2764 if (0 /* ctl & B43_MACCTL_AP */) {
2765 b43_write32(dev, B43_MMIO_MACCTL,
2766 b43_read32(dev, B43_MMIO_MACCTL)
2767 & ~B43_MACCTL_DISCPMQ);
2768 } else {
2769 b43_write32(dev, B43_MMIO_MACCTL,
2770 b43_read32(dev, B43_MMIO_MACCTL)
2771 | B43_MACCTL_DISCPMQ);
2772 }
Michael Buesche4d6b792007-09-18 15:39:42 -04002773}
2774
2775static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm)
2776{
2777 u16 offset;
2778
2779 if (is_ofdm) {
2780 offset = 0x480;
2781 offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
2782 } else {
2783 offset = 0x4C0;
2784 offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
2785 }
2786 b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20,
2787 b43_shm_read16(dev, B43_SHM_SHARED, offset));
2788}
2789
2790static void b43_rate_memory_init(struct b43_wldev *dev)
2791{
2792 switch (dev->phy.type) {
2793 case B43_PHYTYPE_A:
2794 case B43_PHYTYPE_G:
Michael Buesch53a6e232008-01-13 21:23:44 +01002795 case B43_PHYTYPE_N:
Gábor Stefanik9d86a2d2009-08-14 14:54:46 +02002796 case B43_PHYTYPE_LP:
Michael Buesche4d6b792007-09-18 15:39:42 -04002797 b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1);
2798 b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1);
2799 b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1);
2800 b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1);
2801 b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1);
2802 b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1);
2803 b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1);
2804 if (dev->phy.type == B43_PHYTYPE_A)
2805 break;
2806 /* fallthrough */
2807 case B43_PHYTYPE_B:
2808 b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0);
2809 b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0);
2810 b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0);
2811 b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0);
2812 break;
2813 default:
2814 B43_WARN_ON(1);
2815 }
2816}
2817
Michael Buesch5042c502008-04-05 15:05:00 +02002818/* Set the default values for the PHY TX Control Words. */
2819static void b43_set_phytxctl_defaults(struct b43_wldev *dev)
2820{
2821 u16 ctl = 0;
2822
2823 ctl |= B43_TXH_PHY_ENC_CCK;
2824 ctl |= B43_TXH_PHY_ANT01AUTO;
2825 ctl |= B43_TXH_PHY_TXPWR;
2826
2827 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl);
2828 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, ctl);
2829 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, ctl);
2830}
2831
Michael Buesche4d6b792007-09-18 15:39:42 -04002832/* Set the TX-Antenna for management frames sent by firmware. */
2833static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna)
2834{
Michael Buesch5042c502008-04-05 15:05:00 +02002835 u16 ant;
Michael Buesche4d6b792007-09-18 15:39:42 -04002836 u16 tmp;
2837
Michael Buesch5042c502008-04-05 15:05:00 +02002838 ant = b43_antenna_to_phyctl(antenna);
Michael Buesche4d6b792007-09-18 15:39:42 -04002839
Michael Buesche4d6b792007-09-18 15:39:42 -04002840 /* For ACK/CTS */
2841 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL);
Michael Buescheb189d8b2008-01-28 14:47:41 -08002842 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
Michael Buesche4d6b792007-09-18 15:39:42 -04002843 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp);
2844 /* For Probe Resposes */
2845 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL);
Michael Buescheb189d8b2008-01-28 14:47:41 -08002846 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
Michael Buesche4d6b792007-09-18 15:39:42 -04002847 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp);
2848}
2849
2850/* This is the opposite of b43_chip_init() */
2851static void b43_chip_exit(struct b43_wldev *dev)
2852{
Michael Bueschfb111372008-09-02 13:00:34 +02002853 b43_phy_exit(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04002854 b43_gpio_cleanup(dev);
2855 /* firmware is released later */
2856}
2857
2858/* Initialize the chip
2859 * http://bcm-specs.sipsolutions.net/ChipInit
2860 */
2861static int b43_chip_init(struct b43_wldev *dev)
2862{
2863 struct b43_phy *phy = &dev->phy;
Michael Bueschef1a6282008-08-27 18:53:02 +02002864 int err;
Rafał Miłecki858a1652011-05-10 16:05:33 +02002865 u32 macctl;
Michael Buesche4d6b792007-09-18 15:39:42 -04002866 u16 value16;
2867
Michael Buesch1f7d87b2008-01-22 20:23:34 +01002868 /* Initialize the MAC control */
2869 macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED;
2870 if (dev->phy.gmode)
2871 macctl |= B43_MACCTL_GMODE;
2872 macctl |= B43_MACCTL_INFRA;
2873 b43_write32(dev, B43_MMIO_MACCTL, macctl);
Michael Buesche4d6b792007-09-18 15:39:42 -04002874
2875 err = b43_request_firmware(dev);
2876 if (err)
2877 goto out;
2878 err = b43_upload_microcode(dev);
2879 if (err)
2880 goto out; /* firmware is released later */
2881
2882 err = b43_gpio_init(dev);
2883 if (err)
2884 goto out; /* firmware is released later */
Michael Buesch21954c32007-09-27 15:31:40 +02002885
Michael Buesche4d6b792007-09-18 15:39:42 -04002886 err = b43_upload_initvals(dev);
2887 if (err)
Larry Finger1a8d1222007-12-14 13:59:11 +01002888 goto err_gpio_clean;
Michael Buesche4d6b792007-09-18 15:39:42 -04002889
Michael Buesch0b7dcd92008-09-03 12:31:54 +02002890 /* Turn the Analog on and initialize the PHY. */
2891 phy->ops->switch_analog(dev, 1);
Michael Buesche4d6b792007-09-18 15:39:42 -04002892 err = b43_phy_init(dev);
2893 if (err)
Michael Bueschef1a6282008-08-27 18:53:02 +02002894 goto err_gpio_clean;
Michael Buesche4d6b792007-09-18 15:39:42 -04002895
Michael Bueschef1a6282008-08-27 18:53:02 +02002896 /* Disable Interference Mitigation. */
2897 if (phy->ops->interf_mitigation)
2898 phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE);
Michael Buesche4d6b792007-09-18 15:39:42 -04002899
Michael Bueschef1a6282008-08-27 18:53:02 +02002900 /* Select the antennae */
2901 if (phy->ops->set_rx_antenna)
2902 phy->ops->set_rx_antenna(dev, B43_ANTENNA_DEFAULT);
Michael Buesche4d6b792007-09-18 15:39:42 -04002903 b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT);
2904
2905 if (phy->type == B43_PHYTYPE_B) {
2906 value16 = b43_read16(dev, 0x005E);
2907 value16 |= 0x0004;
2908 b43_write16(dev, 0x005E, value16);
2909 }
2910 b43_write32(dev, 0x0100, 0x01000000);
Rafał Miłecki21d889d2011-05-18 02:06:38 +02002911 if (dev->dev->core_rev < 5)
Michael Buesche4d6b792007-09-18 15:39:42 -04002912 b43_write32(dev, 0x010C, 0x01000000);
2913
2914 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2915 & ~B43_MACCTL_INFRA);
2916 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2917 | B43_MACCTL_INFRA);
Michael Buesche4d6b792007-09-18 15:39:42 -04002918
Michael Buesche4d6b792007-09-18 15:39:42 -04002919 /* Probe Response Timeout value */
2920 /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
2921 b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000);
2922
2923 /* Initially set the wireless operation mode. */
2924 b43_adjust_opmode(dev);
2925
Rafał Miłecki21d889d2011-05-18 02:06:38 +02002926 if (dev->dev->core_rev < 3) {
Michael Buesche4d6b792007-09-18 15:39:42 -04002927 b43_write16(dev, 0x060E, 0x0000);
2928 b43_write16(dev, 0x0610, 0x8000);
2929 b43_write16(dev, 0x0604, 0x0000);
2930 b43_write16(dev, 0x0606, 0x0200);
2931 } else {
2932 b43_write32(dev, 0x0188, 0x80000000);
2933 b43_write32(dev, 0x018C, 0x02000000);
2934 }
2935 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000);
2936 b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
2937 b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
2938 b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
2939 b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
2940 b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
2941 b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
2942
Rafał Miłecki858a1652011-05-10 16:05:33 +02002943 b43_mac_phy_clock_set(dev, true);
Michael Buesche4d6b792007-09-18 15:39:42 -04002944
2945 b43_write16(dev, B43_MMIO_POWERUP_DELAY,
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02002946 dev->sdev->bus->chipco.fast_pwrup_delay);
Michael Buesche4d6b792007-09-18 15:39:42 -04002947
2948 err = 0;
2949 b43dbg(dev->wl, "Chip initialized\n");
Michael Buesch21954c32007-09-27 15:31:40 +02002950out:
Michael Buesche4d6b792007-09-18 15:39:42 -04002951 return err;
2952
Larry Finger1a8d1222007-12-14 13:59:11 +01002953err_gpio_clean:
Michael Buesche4d6b792007-09-18 15:39:42 -04002954 b43_gpio_cleanup(dev);
Michael Buesch21954c32007-09-27 15:31:40 +02002955 return err;
Michael Buesche4d6b792007-09-18 15:39:42 -04002956}
2957
Michael Buesche4d6b792007-09-18 15:39:42 -04002958static void b43_periodic_every60sec(struct b43_wldev *dev)
2959{
Michael Bueschef1a6282008-08-27 18:53:02 +02002960 const struct b43_phy_operations *ops = dev->phy.ops;
Michael Buesche4d6b792007-09-18 15:39:42 -04002961
Michael Bueschef1a6282008-08-27 18:53:02 +02002962 if (ops->pwork_60sec)
2963 ops->pwork_60sec(dev);
Michael Buesch18c8ade2008-08-28 19:33:40 +02002964
2965 /* Force check the TX power emission now. */
2966 b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME);
Michael Buesche4d6b792007-09-18 15:39:42 -04002967}
2968
2969static void b43_periodic_every30sec(struct b43_wldev *dev)
2970{
2971 /* Update device statistics. */
2972 b43_calculate_link_quality(dev);
2973}
2974
2975static void b43_periodic_every15sec(struct b43_wldev *dev)
2976{
2977 struct b43_phy *phy = &dev->phy;
Michael Buesch9b839a72008-06-20 17:44:02 +02002978 u16 wdr;
2979
2980 if (dev->fw.opensource) {
2981 /* Check if the firmware is still alive.
2982 * It will reset the watchdog counter to 0 in its idle loop. */
2983 wdr = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_WATCHDOG_REG);
2984 if (unlikely(wdr)) {
2985 b43err(dev->wl, "Firmware watchdog: The firmware died!\n");
2986 b43_controller_restart(dev, "Firmware watchdog");
2987 return;
2988 } else {
2989 b43_shm_write16(dev, B43_SHM_SCRATCH,
2990 B43_WATCHDOG_REG, 1);
2991 }
2992 }
Michael Buesche4d6b792007-09-18 15:39:42 -04002993
Michael Bueschef1a6282008-08-27 18:53:02 +02002994 if (phy->ops->pwork_15sec)
2995 phy->ops->pwork_15sec(dev);
2996
Stefano Brivio00e0b8c2007-11-25 11:10:33 +01002997 atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
2998 wmb();
Michael Buesch990b86f2009-09-12 00:48:03 +02002999
3000#if B43_DEBUG
3001 if (b43_debug(dev, B43_DBG_VERBOSESTATS)) {
3002 unsigned int i;
3003
3004 b43dbg(dev->wl, "Stats: %7u IRQs/sec, %7u TX/sec, %7u RX/sec\n",
3005 dev->irq_count / 15,
3006 dev->tx_count / 15,
3007 dev->rx_count / 15);
3008 dev->irq_count = 0;
3009 dev->tx_count = 0;
3010 dev->rx_count = 0;
3011 for (i = 0; i < ARRAY_SIZE(dev->irq_bit_count); i++) {
3012 if (dev->irq_bit_count[i]) {
3013 b43dbg(dev->wl, "Stats: %7u IRQ-%02u/sec (0x%08X)\n",
3014 dev->irq_bit_count[i] / 15, i, (1 << i));
3015 dev->irq_bit_count[i] = 0;
3016 }
3017 }
3018 }
3019#endif
Michael Buesche4d6b792007-09-18 15:39:42 -04003020}
3021
Michael Buesche4d6b792007-09-18 15:39:42 -04003022static void do_periodic_work(struct b43_wldev *dev)
3023{
3024 unsigned int state;
3025
3026 state = dev->periodic_state;
Michael Buesch42bb4cd2007-09-28 14:22:33 +02003027 if (state % 4 == 0)
Michael Buesche4d6b792007-09-18 15:39:42 -04003028 b43_periodic_every60sec(dev);
Michael Buesch42bb4cd2007-09-28 14:22:33 +02003029 if (state % 2 == 0)
Michael Buesche4d6b792007-09-18 15:39:42 -04003030 b43_periodic_every30sec(dev);
Michael Buesch42bb4cd2007-09-28 14:22:33 +02003031 b43_periodic_every15sec(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04003032}
3033
Michael Buesch05b64b32007-09-28 16:19:03 +02003034/* Periodic work locking policy:
3035 * The whole periodic work handler is protected by
3036 * wl->mutex. If another lock is needed somewhere in the
Uwe Kleine-König21ae2952009-10-07 15:21:09 +02003037 * pwork callchain, it's acquired in-place, where it's needed.
Michael Buesche4d6b792007-09-18 15:39:42 -04003038 */
Michael Buesche4d6b792007-09-18 15:39:42 -04003039static void b43_periodic_work_handler(struct work_struct *work)
3040{
Michael Buesch05b64b32007-09-28 16:19:03 +02003041 struct b43_wldev *dev = container_of(work, struct b43_wldev,
3042 periodic_work.work);
3043 struct b43_wl *wl = dev->wl;
3044 unsigned long delay;
Michael Buesche4d6b792007-09-18 15:39:42 -04003045
Michael Buesch05b64b32007-09-28 16:19:03 +02003046 mutex_lock(&wl->mutex);
Michael Buesche4d6b792007-09-18 15:39:42 -04003047
3048 if (unlikely(b43_status(dev) != B43_STAT_STARTED))
3049 goto out;
3050 if (b43_debug(dev, B43_DBG_PWORK_STOP))
3051 goto out_requeue;
3052
Michael Buesch05b64b32007-09-28 16:19:03 +02003053 do_periodic_work(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04003054
Michael Buesche4d6b792007-09-18 15:39:42 -04003055 dev->periodic_state++;
Michael Buesch42bb4cd2007-09-28 14:22:33 +02003056out_requeue:
Michael Buesche4d6b792007-09-18 15:39:42 -04003057 if (b43_debug(dev, B43_DBG_PWORK_FAST))
3058 delay = msecs_to_jiffies(50);
3059 else
Anton Blanchard82cd6822007-10-15 00:42:23 -05003060 delay = round_jiffies_relative(HZ * 15);
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -04003061 ieee80211_queue_delayed_work(wl->hw, &dev->periodic_work, delay);
Michael Buesch42bb4cd2007-09-28 14:22:33 +02003062out:
Michael Buesch05b64b32007-09-28 16:19:03 +02003063 mutex_unlock(&wl->mutex);
Michael Buesche4d6b792007-09-18 15:39:42 -04003064}
3065
3066static void b43_periodic_tasks_setup(struct b43_wldev *dev)
3067{
3068 struct delayed_work *work = &dev->periodic_work;
3069
3070 dev->periodic_state = 0;
3071 INIT_DELAYED_WORK(work, b43_periodic_work_handler);
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -04003072 ieee80211_queue_delayed_work(dev->wl->hw, work, 0);
Michael Buesche4d6b792007-09-18 15:39:42 -04003073}
3074
Michael Bueschf3dd3fc2007-12-22 21:56:30 +01003075/* Check if communication with the device works correctly. */
Michael Buesche4d6b792007-09-18 15:39:42 -04003076static int b43_validate_chipaccess(struct b43_wldev *dev)
3077{
Michael Bueschf62ae6c2009-07-31 20:51:41 +02003078 u32 v, backup0, backup4;
Michael Buesche4d6b792007-09-18 15:39:42 -04003079
Michael Bueschf62ae6c2009-07-31 20:51:41 +02003080 backup0 = b43_shm_read32(dev, B43_SHM_SHARED, 0);
3081 backup4 = b43_shm_read32(dev, B43_SHM_SHARED, 4);
Michael Bueschf3dd3fc2007-12-22 21:56:30 +01003082
3083 /* Check for read/write and endianness problems. */
Michael Buesche4d6b792007-09-18 15:39:42 -04003084 b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55);
3085 if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55)
3086 goto error;
Michael Bueschf3dd3fc2007-12-22 21:56:30 +01003087 b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA);
3088 if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA)
Michael Buesche4d6b792007-09-18 15:39:42 -04003089 goto error;
3090
Michael Bueschf62ae6c2009-07-31 20:51:41 +02003091 /* Check if unaligned 32bit SHM_SHARED access works properly.
3092 * However, don't bail out on failure, because it's noncritical. */
3093 b43_shm_write16(dev, B43_SHM_SHARED, 0, 0x1122);
3094 b43_shm_write16(dev, B43_SHM_SHARED, 2, 0x3344);
3095 b43_shm_write16(dev, B43_SHM_SHARED, 4, 0x5566);
3096 b43_shm_write16(dev, B43_SHM_SHARED, 6, 0x7788);
3097 if (b43_shm_read32(dev, B43_SHM_SHARED, 2) != 0x55663344)
3098 b43warn(dev->wl, "Unaligned 32bit SHM read access is broken\n");
3099 b43_shm_write32(dev, B43_SHM_SHARED, 2, 0xAABBCCDD);
3100 if (b43_shm_read16(dev, B43_SHM_SHARED, 0) != 0x1122 ||
3101 b43_shm_read16(dev, B43_SHM_SHARED, 2) != 0xCCDD ||
3102 b43_shm_read16(dev, B43_SHM_SHARED, 4) != 0xAABB ||
3103 b43_shm_read16(dev, B43_SHM_SHARED, 6) != 0x7788)
3104 b43warn(dev->wl, "Unaligned 32bit SHM write access is broken\n");
3105
3106 b43_shm_write32(dev, B43_SHM_SHARED, 0, backup0);
3107 b43_shm_write32(dev, B43_SHM_SHARED, 4, backup4);
Michael Bueschf3dd3fc2007-12-22 21:56:30 +01003108
Rafał Miłecki21d889d2011-05-18 02:06:38 +02003109 if ((dev->dev->core_rev >= 3) && (dev->dev->core_rev <= 10)) {
Michael Bueschf3dd3fc2007-12-22 21:56:30 +01003110 /* The 32bit register shadows the two 16bit registers
3111 * with update sideeffects. Validate this. */
3112 b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA);
3113 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB);
3114 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB)
3115 goto error;
3116 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC)
3117 goto error;
3118 }
3119 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0);
3120
3121 v = b43_read32(dev, B43_MMIO_MACCTL);
3122 v |= B43_MACCTL_GMODE;
3123 if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED))
Michael Buesche4d6b792007-09-18 15:39:42 -04003124 goto error;
3125
3126 return 0;
Michael Bueschf3dd3fc2007-12-22 21:56:30 +01003127error:
Michael Buesche4d6b792007-09-18 15:39:42 -04003128 b43err(dev->wl, "Failed to validate the chipaccess\n");
3129 return -ENODEV;
3130}
3131
3132static void b43_security_init(struct b43_wldev *dev)
3133{
Michael Buesche4d6b792007-09-18 15:39:42 -04003134 dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP);
3135 /* KTP is a word address, but we address SHM bytewise.
3136 * So multiply by two.
3137 */
3138 dev->ktp *= 2;
Michael Buesch66d2d082009-08-06 10:36:50 +02003139 /* Number of RCMTA address slots */
3140 b43_write16(dev, B43_MMIO_RCMTA_COUNT, B43_NR_PAIRWISE_KEYS);
3141 /* Clear the key memory. */
Michael Buesche4d6b792007-09-18 15:39:42 -04003142 b43_clear_keys(dev);
3143}
3144
Michael Buesch616de352009-03-29 13:19:31 +02003145#ifdef CONFIG_B43_HWRNG
John Daiker99da1852009-02-24 02:16:42 -08003146static int b43_rng_read(struct hwrng *rng, u32 *data)
Michael Buesche4d6b792007-09-18 15:39:42 -04003147{
3148 struct b43_wl *wl = (struct b43_wl *)rng->priv;
Michael Buescha78b3bb2009-09-11 21:44:05 +02003149 struct b43_wldev *dev;
3150 int count = -ENODEV;
Michael Buesche4d6b792007-09-18 15:39:42 -04003151
Michael Buescha78b3bb2009-09-11 21:44:05 +02003152 mutex_lock(&wl->mutex);
3153 dev = wl->current_dev;
3154 if (likely(dev && b43_status(dev) >= B43_STAT_INITIALIZED)) {
3155 *data = b43_read16(dev, B43_MMIO_RNG);
3156 count = sizeof(u16);
3157 }
3158 mutex_unlock(&wl->mutex);
Michael Buesche4d6b792007-09-18 15:39:42 -04003159
Michael Buescha78b3bb2009-09-11 21:44:05 +02003160 return count;
Michael Buesche4d6b792007-09-18 15:39:42 -04003161}
Michael Buesch616de352009-03-29 13:19:31 +02003162#endif /* CONFIG_B43_HWRNG */
Michael Buesche4d6b792007-09-18 15:39:42 -04003163
Rafael J. Wysockib844eba2008-03-23 20:28:24 +01003164static void b43_rng_exit(struct b43_wl *wl)
Michael Buesche4d6b792007-09-18 15:39:42 -04003165{
Michael Buesch616de352009-03-29 13:19:31 +02003166#ifdef CONFIG_B43_HWRNG
Michael Buesche4d6b792007-09-18 15:39:42 -04003167 if (wl->rng_initialized)
Rafael J. Wysockib844eba2008-03-23 20:28:24 +01003168 hwrng_unregister(&wl->rng);
Michael Buesch616de352009-03-29 13:19:31 +02003169#endif /* CONFIG_B43_HWRNG */
Michael Buesche4d6b792007-09-18 15:39:42 -04003170}
3171
3172static int b43_rng_init(struct b43_wl *wl)
3173{
Michael Buesch616de352009-03-29 13:19:31 +02003174 int err = 0;
Michael Buesche4d6b792007-09-18 15:39:42 -04003175
Michael Buesch616de352009-03-29 13:19:31 +02003176#ifdef CONFIG_B43_HWRNG
Michael Buesche4d6b792007-09-18 15:39:42 -04003177 snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name),
3178 "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy));
3179 wl->rng.name = wl->rng_name;
3180 wl->rng.data_read = b43_rng_read;
3181 wl->rng.priv = (unsigned long)wl;
3182 wl->rng_initialized = 1;
3183 err = hwrng_register(&wl->rng);
3184 if (err) {
3185 wl->rng_initialized = 0;
3186 b43err(wl, "Failed to register the random "
3187 "number generator (%d)\n", err);
3188 }
Michael Buesch616de352009-03-29 13:19:31 +02003189#endif /* CONFIG_B43_HWRNG */
Michael Buesche4d6b792007-09-18 15:39:42 -04003190
3191 return err;
3192}
3193
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003194static void b43_tx_work(struct work_struct *work)
Michael Buesche4d6b792007-09-18 15:39:42 -04003195{
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003196 struct b43_wl *wl = container_of(work, struct b43_wl, tx_work);
3197 struct b43_wldev *dev;
3198 struct sk_buff *skb;
3199 int err = 0;
Michael Buesche4d6b792007-09-18 15:39:42 -04003200
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003201 mutex_lock(&wl->mutex);
3202 dev = wl->current_dev;
3203 if (unlikely(!dev || b43_status(dev) < B43_STAT_STARTED)) {
3204 mutex_unlock(&wl->mutex);
3205 return;
Michael Buesch5100d5a2008-03-29 21:01:16 +01003206 }
Michael Buesch21a75d72008-04-25 19:29:08 +02003207
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003208 while (skb_queue_len(&wl->tx_queue)) {
3209 skb = skb_dequeue(&wl->tx_queue);
Michael Buesch21a75d72008-04-25 19:29:08 +02003210
Michael Buesch21a75d72008-04-25 19:29:08 +02003211 if (b43_using_pio_transfers(dev))
Johannes Berge039fa42008-05-15 12:55:29 +02003212 err = b43_pio_tx(dev, skb);
Michael Buesch21a75d72008-04-25 19:29:08 +02003213 else
Johannes Berge039fa42008-05-15 12:55:29 +02003214 err = b43_dma_tx(dev, skb);
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003215 if (unlikely(err))
3216 dev_kfree_skb(skb); /* Drop it */
Michael Buesch21a75d72008-04-25 19:29:08 +02003217 }
3218
Michael Buesch990b86f2009-09-12 00:48:03 +02003219#if B43_DEBUG
3220 dev->tx_count++;
3221#endif
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003222 mutex_unlock(&wl->mutex);
3223}
Michael Buesch21a75d72008-04-25 19:29:08 +02003224
Johannes Berg7bb45682011-02-24 14:42:06 +01003225static void b43_op_tx(struct ieee80211_hw *hw,
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003226 struct sk_buff *skb)
3227{
3228 struct b43_wl *wl = hw_to_b43_wl(hw);
Michael Bueschc9e8eae2008-06-15 15:17:29 +02003229
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003230 if (unlikely(skb->len < 2 + 2 + 6)) {
3231 /* Too short, this can't be a valid frame. */
3232 dev_kfree_skb_any(skb);
Johannes Berg7bb45682011-02-24 14:42:06 +01003233 return;
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003234 }
3235 B43_WARN_ON(skb_shinfo(skb)->nr_frags);
3236
3237 skb_queue_tail(&wl->tx_queue, skb);
3238 ieee80211_queue_work(wl->hw, &wl->tx_work);
Michael Buesche4d6b792007-09-18 15:39:42 -04003239}
3240
Michael Buesche6f5b932008-03-05 21:18:49 +01003241static void b43_qos_params_upload(struct b43_wldev *dev,
3242 const struct ieee80211_tx_queue_params *p,
3243 u16 shm_offset)
3244{
3245 u16 params[B43_NR_QOSPARAMS];
Johannes Berg0b576642008-07-15 02:08:24 -07003246 int bslots, tmp;
Michael Buesche6f5b932008-03-05 21:18:49 +01003247 unsigned int i;
3248
Michael Bueschb0544eb2009-09-06 15:42:45 +02003249 if (!dev->qos_enabled)
3250 return;
3251
Johannes Berg0b576642008-07-15 02:08:24 -07003252 bslots = b43_read16(dev, B43_MMIO_RNG) & p->cw_min;
Michael Buesche6f5b932008-03-05 21:18:49 +01003253
3254 memset(&params, 0, sizeof(params));
3255
3256 params[B43_QOSPARAM_TXOP] = p->txop * 32;
Johannes Berg0b576642008-07-15 02:08:24 -07003257 params[B43_QOSPARAM_CWMIN] = p->cw_min;
3258 params[B43_QOSPARAM_CWMAX] = p->cw_max;
3259 params[B43_QOSPARAM_CWCUR] = p->cw_min;
3260 params[B43_QOSPARAM_AIFS] = p->aifs;
Michael Buesche6f5b932008-03-05 21:18:49 +01003261 params[B43_QOSPARAM_BSLOTS] = bslots;
Johannes Berg0b576642008-07-15 02:08:24 -07003262 params[B43_QOSPARAM_REGGAP] = bslots + p->aifs;
Michael Buesche6f5b932008-03-05 21:18:49 +01003263
3264 for (i = 0; i < ARRAY_SIZE(params); i++) {
3265 if (i == B43_QOSPARAM_STATUS) {
3266 tmp = b43_shm_read16(dev, B43_SHM_SHARED,
3267 shm_offset + (i * 2));
3268 /* Mark the parameters as updated. */
3269 tmp |= 0x100;
3270 b43_shm_write16(dev, B43_SHM_SHARED,
3271 shm_offset + (i * 2),
3272 tmp);
3273 } else {
3274 b43_shm_write16(dev, B43_SHM_SHARED,
3275 shm_offset + (i * 2),
3276 params[i]);
3277 }
3278 }
3279}
3280
Michael Bueschc40c1122008-09-06 16:21:47 +02003281/* Mapping of mac80211 queue numbers to b43 QoS SHM offsets. */
3282static const u16 b43_qos_shm_offsets[] = {
3283 /* [mac80211-queue-nr] = SHM_OFFSET, */
3284 [0] = B43_QOS_VOICE,
3285 [1] = B43_QOS_VIDEO,
3286 [2] = B43_QOS_BESTEFFORT,
3287 [3] = B43_QOS_BACKGROUND,
3288};
3289
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003290/* Update all QOS parameters in hardware. */
3291static void b43_qos_upload_all(struct b43_wldev *dev)
Michael Buesche6f5b932008-03-05 21:18:49 +01003292{
3293 struct b43_wl *wl = dev->wl;
3294 struct b43_qos_params *params;
Michael Buesche6f5b932008-03-05 21:18:49 +01003295 unsigned int i;
3296
Michael Bueschb0544eb2009-09-06 15:42:45 +02003297 if (!dev->qos_enabled)
3298 return;
3299
Michael Bueschc40c1122008-09-06 16:21:47 +02003300 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
3301 ARRAY_SIZE(wl->qos_params));
Michael Buesche6f5b932008-03-05 21:18:49 +01003302
3303 b43_mac_suspend(dev);
Michael Buesche6f5b932008-03-05 21:18:49 +01003304 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
3305 params = &(wl->qos_params[i]);
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003306 b43_qos_params_upload(dev, &(params->p),
3307 b43_qos_shm_offsets[i]);
Michael Buesche6f5b932008-03-05 21:18:49 +01003308 }
Michael Buesche6f5b932008-03-05 21:18:49 +01003309 b43_mac_enable(dev);
3310}
3311
3312static void b43_qos_clear(struct b43_wl *wl)
3313{
3314 struct b43_qos_params *params;
3315 unsigned int i;
3316
Michael Bueschc40c1122008-09-06 16:21:47 +02003317 /* Initialize QoS parameters to sane defaults. */
3318
3319 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
3320 ARRAY_SIZE(wl->qos_params));
3321
Michael Buesche6f5b932008-03-05 21:18:49 +01003322 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
3323 params = &(wl->qos_params[i]);
3324
Michael Bueschc40c1122008-09-06 16:21:47 +02003325 switch (b43_qos_shm_offsets[i]) {
3326 case B43_QOS_VOICE:
3327 params->p.txop = 0;
3328 params->p.aifs = 2;
3329 params->p.cw_min = 0x0001;
3330 params->p.cw_max = 0x0001;
3331 break;
3332 case B43_QOS_VIDEO:
3333 params->p.txop = 0;
3334 params->p.aifs = 2;
3335 params->p.cw_min = 0x0001;
3336 params->p.cw_max = 0x0001;
3337 break;
3338 case B43_QOS_BESTEFFORT:
3339 params->p.txop = 0;
3340 params->p.aifs = 3;
3341 params->p.cw_min = 0x0001;
3342 params->p.cw_max = 0x03FF;
3343 break;
3344 case B43_QOS_BACKGROUND:
3345 params->p.txop = 0;
3346 params->p.aifs = 7;
3347 params->p.cw_min = 0x0001;
3348 params->p.cw_max = 0x03FF;
3349 break;
3350 default:
3351 B43_WARN_ON(1);
3352 }
Michael Buesche6f5b932008-03-05 21:18:49 +01003353 }
3354}
3355
3356/* Initialize the core's QOS capabilities */
3357static void b43_qos_init(struct b43_wldev *dev)
3358{
Michael Bueschb0544eb2009-09-06 15:42:45 +02003359 if (!dev->qos_enabled) {
3360 /* Disable QOS support. */
3361 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_EDCF);
3362 b43_write16(dev, B43_MMIO_IFSCTL,
3363 b43_read16(dev, B43_MMIO_IFSCTL)
3364 & ~B43_MMIO_IFSCTL_USE_EDCF);
3365 b43dbg(dev->wl, "QoS disabled\n");
3366 return;
3367 }
3368
Michael Buesche6f5b932008-03-05 21:18:49 +01003369 /* Upload the current QOS parameters. */
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003370 b43_qos_upload_all(dev);
Michael Buesche6f5b932008-03-05 21:18:49 +01003371
3372 /* Enable QOS support. */
3373 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF);
3374 b43_write16(dev, B43_MMIO_IFSCTL,
3375 b43_read16(dev, B43_MMIO_IFSCTL)
3376 | B43_MMIO_IFSCTL_USE_EDCF);
Michael Bueschb0544eb2009-09-06 15:42:45 +02003377 b43dbg(dev->wl, "QoS enabled\n");
Michael Buesche6f5b932008-03-05 21:18:49 +01003378}
3379
Johannes Berge100bb62008-04-30 18:51:21 +02003380static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue,
Michael Buesch40faacc2007-10-28 16:29:32 +01003381 const struct ieee80211_tx_queue_params *params)
Michael Buesche4d6b792007-09-18 15:39:42 -04003382{
Michael Buesche6f5b932008-03-05 21:18:49 +01003383 struct b43_wl *wl = hw_to_b43_wl(hw);
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003384 struct b43_wldev *dev;
Michael Buesche6f5b932008-03-05 21:18:49 +01003385 unsigned int queue = (unsigned int)_queue;
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003386 int err = -ENODEV;
Michael Buesche6f5b932008-03-05 21:18:49 +01003387
3388 if (queue >= ARRAY_SIZE(wl->qos_params)) {
3389 /* Queue not available or don't support setting
3390 * params on this queue. Return success to not
3391 * confuse mac80211. */
3392 return 0;
3393 }
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003394 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
3395 ARRAY_SIZE(wl->qos_params));
Michael Buesche6f5b932008-03-05 21:18:49 +01003396
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003397 mutex_lock(&wl->mutex);
3398 dev = wl->current_dev;
3399 if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED)))
3400 goto out_unlock;
Michael Buesche6f5b932008-03-05 21:18:49 +01003401
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003402 memcpy(&(wl->qos_params[queue].p), params, sizeof(*params));
3403 b43_mac_suspend(dev);
3404 b43_qos_params_upload(dev, &(wl->qos_params[queue].p),
3405 b43_qos_shm_offsets[queue]);
3406 b43_mac_enable(dev);
3407 err = 0;
Michael Buesche6f5b932008-03-05 21:18:49 +01003408
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003409out_unlock:
3410 mutex_unlock(&wl->mutex);
3411
3412 return err;
Michael Buesche4d6b792007-09-18 15:39:42 -04003413}
3414
Michael Buesch40faacc2007-10-28 16:29:32 +01003415static int b43_op_get_stats(struct ieee80211_hw *hw,
3416 struct ieee80211_low_level_stats *stats)
Michael Buesche4d6b792007-09-18 15:39:42 -04003417{
3418 struct b43_wl *wl = hw_to_b43_wl(hw);
Michael Buesche4d6b792007-09-18 15:39:42 -04003419
Michael Buesch36dbd952009-09-04 22:51:29 +02003420 mutex_lock(&wl->mutex);
Michael Buesche4d6b792007-09-18 15:39:42 -04003421 memcpy(stats, &wl->ieee_stats, sizeof(*stats));
Michael Buesch36dbd952009-09-04 22:51:29 +02003422 mutex_unlock(&wl->mutex);
Michael Buesche4d6b792007-09-18 15:39:42 -04003423
3424 return 0;
3425}
3426
Alina Friedrichsen08e87a82009-01-25 15:28:28 +01003427static u64 b43_op_get_tsf(struct ieee80211_hw *hw)
3428{
3429 struct b43_wl *wl = hw_to_b43_wl(hw);
3430 struct b43_wldev *dev;
3431 u64 tsf;
3432
3433 mutex_lock(&wl->mutex);
Alina Friedrichsen08e87a82009-01-25 15:28:28 +01003434 dev = wl->current_dev;
3435
3436 if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED))
3437 b43_tsf_read(dev, &tsf);
3438 else
3439 tsf = 0;
3440
Alina Friedrichsen08e87a82009-01-25 15:28:28 +01003441 mutex_unlock(&wl->mutex);
3442
3443 return tsf;
3444}
3445
3446static void b43_op_set_tsf(struct ieee80211_hw *hw, u64 tsf)
3447{
3448 struct b43_wl *wl = hw_to_b43_wl(hw);
3449 struct b43_wldev *dev;
3450
3451 mutex_lock(&wl->mutex);
Alina Friedrichsen08e87a82009-01-25 15:28:28 +01003452 dev = wl->current_dev;
3453
3454 if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED))
3455 b43_tsf_write(dev, tsf);
3456
Alina Friedrichsen08e87a82009-01-25 15:28:28 +01003457 mutex_unlock(&wl->mutex);
3458}
3459
Michael Buesche4d6b792007-09-18 15:39:42 -04003460static void b43_put_phy_into_reset(struct b43_wldev *dev)
3461{
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02003462 struct ssb_device *sdev = dev->sdev;
Michael Buesche4d6b792007-09-18 15:39:42 -04003463 u32 tmslow;
3464
3465 tmslow = ssb_read32(sdev, SSB_TMSLOW);
3466 tmslow &= ~B43_TMSLOW_GMODE;
3467 tmslow |= B43_TMSLOW_PHYRESET;
3468 tmslow |= SSB_TMSLOW_FGC;
3469 ssb_write32(sdev, SSB_TMSLOW, tmslow);
3470 msleep(1);
3471
3472 tmslow = ssb_read32(sdev, SSB_TMSLOW);
3473 tmslow &= ~SSB_TMSLOW_FGC;
3474 tmslow |= B43_TMSLOW_PHYRESET;
3475 ssb_write32(sdev, SSB_TMSLOW, tmslow);
3476 msleep(1);
3477}
3478
John Daiker99da1852009-02-24 02:16:42 -08003479static const char *band_to_string(enum ieee80211_band band)
Michael Buesche4d6b792007-09-18 15:39:42 -04003480{
Michael Bueschbb1eeff2008-02-09 12:08:58 +01003481 switch (band) {
3482 case IEEE80211_BAND_5GHZ:
3483 return "5";
3484 case IEEE80211_BAND_2GHZ:
3485 return "2.4";
3486 default:
3487 break;
3488 }
3489 B43_WARN_ON(1);
3490 return "";
3491}
3492
3493/* Expects wl->mutex locked */
3494static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan)
3495{
3496 struct b43_wldev *up_dev = NULL;
Michael Buesche4d6b792007-09-18 15:39:42 -04003497 struct b43_wldev *down_dev;
Michael Bueschbb1eeff2008-02-09 12:08:58 +01003498 struct b43_wldev *d;
Michael Buesche4d6b792007-09-18 15:39:42 -04003499 int err;
John W. Linville922d8a02009-01-12 14:40:20 -05003500 bool uninitialized_var(gmode);
Michael Buesche4d6b792007-09-18 15:39:42 -04003501 int prev_status;
3502
Michael Bueschbb1eeff2008-02-09 12:08:58 +01003503 /* Find a device and PHY which supports the band. */
3504 list_for_each_entry(d, &wl->devlist, list) {
3505 switch (chan->band) {
3506 case IEEE80211_BAND_5GHZ:
3507 if (d->phy.supports_5ghz) {
3508 up_dev = d;
3509 gmode = 0;
3510 }
3511 break;
3512 case IEEE80211_BAND_2GHZ:
3513 if (d->phy.supports_2ghz) {
3514 up_dev = d;
3515 gmode = 1;
3516 }
3517 break;
3518 default:
3519 B43_WARN_ON(1);
3520 return -EINVAL;
3521 }
3522 if (up_dev)
3523 break;
3524 }
3525 if (!up_dev) {
3526 b43err(wl, "Could not find a device for %s-GHz band operation\n",
3527 band_to_string(chan->band));
3528 return -ENODEV;
Michael Buesche4d6b792007-09-18 15:39:42 -04003529 }
3530 if ((up_dev == wl->current_dev) &&
3531 (!!wl->current_dev->phy.gmode == !!gmode)) {
3532 /* This device is already running. */
3533 return 0;
3534 }
Michael Bueschbb1eeff2008-02-09 12:08:58 +01003535 b43dbg(wl, "Switching to %s-GHz band\n",
3536 band_to_string(chan->band));
Michael Buesche4d6b792007-09-18 15:39:42 -04003537 down_dev = wl->current_dev;
3538
3539 prev_status = b43_status(down_dev);
3540 /* Shutdown the currently running core. */
3541 if (prev_status >= B43_STAT_STARTED)
Michael Buesch36dbd952009-09-04 22:51:29 +02003542 down_dev = b43_wireless_core_stop(down_dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04003543 if (prev_status >= B43_STAT_INITIALIZED)
3544 b43_wireless_core_exit(down_dev);
3545
3546 if (down_dev != up_dev) {
3547 /* We switch to a different core, so we put PHY into
3548 * RESET on the old core. */
3549 b43_put_phy_into_reset(down_dev);
3550 }
3551
3552 /* Now start the new core. */
3553 up_dev->phy.gmode = gmode;
3554 if (prev_status >= B43_STAT_INITIALIZED) {
3555 err = b43_wireless_core_init(up_dev);
3556 if (err) {
3557 b43err(wl, "Fatal: Could not initialize device for "
Michael Bueschbb1eeff2008-02-09 12:08:58 +01003558 "selected %s-GHz band\n",
3559 band_to_string(chan->band));
Michael Buesche4d6b792007-09-18 15:39:42 -04003560 goto init_failure;
3561 }
3562 }
3563 if (prev_status >= B43_STAT_STARTED) {
3564 err = b43_wireless_core_start(up_dev);
3565 if (err) {
3566 b43err(wl, "Fatal: Coult not start device for "
Michael Bueschbb1eeff2008-02-09 12:08:58 +01003567 "selected %s-GHz band\n",
3568 band_to_string(chan->band));
Michael Buesche4d6b792007-09-18 15:39:42 -04003569 b43_wireless_core_exit(up_dev);
3570 goto init_failure;
3571 }
3572 }
3573 B43_WARN_ON(b43_status(up_dev) != prev_status);
3574
3575 wl->current_dev = up_dev;
3576
3577 return 0;
Michael Bueschbb1eeff2008-02-09 12:08:58 +01003578init_failure:
Michael Buesche4d6b792007-09-18 15:39:42 -04003579 /* Whoops, failed to init the new core. No core is operating now. */
3580 wl->current_dev = NULL;
3581 return err;
3582}
3583
Johannes Berg9124b072008-10-14 19:17:54 +02003584/* Write the short and long frame retry limit values. */
3585static void b43_set_retry_limits(struct b43_wldev *dev,
3586 unsigned int short_retry,
3587 unsigned int long_retry)
3588{
3589 /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
3590 * the chip-internal counter. */
3591 short_retry = min(short_retry, (unsigned int)0xF);
3592 long_retry = min(long_retry, (unsigned int)0xF);
3593
3594 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT,
3595 short_retry);
3596 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT,
3597 long_retry);
3598}
3599
Johannes Berge8975582008-10-09 12:18:51 +02003600static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
Michael Buesche4d6b792007-09-18 15:39:42 -04003601{
3602 struct b43_wl *wl = hw_to_b43_wl(hw);
3603 struct b43_wldev *dev;
3604 struct b43_phy *phy;
Johannes Berge8975582008-10-09 12:18:51 +02003605 struct ieee80211_conf *conf = &hw->conf;
Michael Buesch9db1f6d2007-12-22 21:54:20 +01003606 int antenna;
Michael Buesche4d6b792007-09-18 15:39:42 -04003607 int err = 0;
Michael Buesche4d6b792007-09-18 15:39:42 -04003608
Michael Buesche4d6b792007-09-18 15:39:42 -04003609 mutex_lock(&wl->mutex);
3610
Michael Bueschbb1eeff2008-02-09 12:08:58 +01003611 /* Switch the band (if necessary). This might change the active core. */
3612 err = b43_switch_band(wl, conf->channel);
Michael Buesche4d6b792007-09-18 15:39:42 -04003613 if (err)
3614 goto out_unlock_mutex;
3615 dev = wl->current_dev;
3616 phy = &dev->phy;
3617
Rafał Miłeckiaa4c7b22010-01-22 01:53:12 +01003618 if (conf_is_ht(conf))
3619 phy->is_40mhz =
3620 (conf_is_ht40_minus(conf) || conf_is_ht40_plus(conf));
3621 else
3622 phy->is_40mhz = false;
3623
Michael Bueschd10d0e52008-12-18 22:13:39 +01003624 b43_mac_suspend(dev);
3625
Johannes Berg9124b072008-10-14 19:17:54 +02003626 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
3627 b43_set_retry_limits(dev, conf->short_frame_max_tx_count,
3628 conf->long_frame_max_tx_count);
3629 changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS;
3630 if (!changed)
Michael Bueschd10d0e52008-12-18 22:13:39 +01003631 goto out_mac_enable;
Michael Buesche4d6b792007-09-18 15:39:42 -04003632
3633 /* Switch to the requested channel.
3634 * The firmware takes care of races with the TX handler. */
Johannes Berg8318d782008-01-24 19:38:38 +01003635 if (conf->channel->hw_value != phy->channel)
Michael Bueschef1a6282008-08-27 18:53:02 +02003636 b43_switch_channel(dev, conf->channel->hw_value);
Michael Buesche4d6b792007-09-18 15:39:42 -04003637
Johannes Berg0869aea2009-10-28 10:03:35 +01003638 dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_MONITOR);
Johannes Bergd42ce842007-11-23 14:50:51 +01003639
Michael Buesche4d6b792007-09-18 15:39:42 -04003640 /* Adjust the desired TX power level. */
3641 if (conf->power_level != 0) {
Michael Buesch18c8ade2008-08-28 19:33:40 +02003642 if (conf->power_level != phy->desired_txpower) {
3643 phy->desired_txpower = conf->power_level;
3644 b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME |
3645 B43_TXPWR_IGNORE_TSSI);
Michael Buesche4d6b792007-09-18 15:39:42 -04003646 }
3647 }
3648
3649 /* Antennas for RX and management frame TX. */
Johannes Berg0f4ac382008-10-09 12:18:04 +02003650 antenna = B43_ANTENNA_DEFAULT;
Michael Buesch9db1f6d2007-12-22 21:54:20 +01003651 b43_mgmtframe_txantenna(dev, antenna);
Johannes Berg0f4ac382008-10-09 12:18:04 +02003652 antenna = B43_ANTENNA_DEFAULT;
Michael Bueschef1a6282008-08-27 18:53:02 +02003653 if (phy->ops->set_rx_antenna)
3654 phy->ops->set_rx_antenna(dev, antenna);
Michael Buesche4d6b792007-09-18 15:39:42 -04003655
Larry Fingerfd4973c2009-06-20 12:58:11 -05003656 if (wl->radio_enabled != phy->radio_on) {
3657 if (wl->radio_enabled) {
Johannes Berg19d337d2009-06-02 13:01:37 +02003658 b43_software_rfkill(dev, false);
Michael Bueschfda9abc2007-09-20 22:14:18 +02003659 b43info(dev->wl, "Radio turned on by software\n");
3660 if (!dev->radio_hw_enable) {
3661 b43info(dev->wl, "The hardware RF-kill button "
3662 "still turns the radio physically off. "
3663 "Press the button to turn it on.\n");
3664 }
3665 } else {
Johannes Berg19d337d2009-06-02 13:01:37 +02003666 b43_software_rfkill(dev, true);
Michael Bueschfda9abc2007-09-20 22:14:18 +02003667 b43info(dev->wl, "Radio turned off by software\n");
3668 }
3669 }
3670
Michael Bueschd10d0e52008-12-18 22:13:39 +01003671out_mac_enable:
3672 b43_mac_enable(dev);
3673out_unlock_mutex:
Michael Buesche4d6b792007-09-18 15:39:42 -04003674 mutex_unlock(&wl->mutex);
3675
3676 return err;
3677}
3678
Johannes Berg881d9482009-01-21 15:13:48 +01003679static void b43_update_basic_rates(struct b43_wldev *dev, u32 brates)
Johannes Bergc7ab5ef2008-10-29 20:02:12 +01003680{
3681 struct ieee80211_supported_band *sband =
3682 dev->wl->hw->wiphy->bands[b43_current_band(dev->wl)];
3683 struct ieee80211_rate *rate;
3684 int i;
3685 u16 basic, direct, offset, basic_offset, rateptr;
3686
3687 for (i = 0; i < sband->n_bitrates; i++) {
3688 rate = &sband->bitrates[i];
3689
3690 if (b43_is_cck_rate(rate->hw_value)) {
3691 direct = B43_SHM_SH_CCKDIRECT;
3692 basic = B43_SHM_SH_CCKBASIC;
3693 offset = b43_plcp_get_ratecode_cck(rate->hw_value);
3694 offset &= 0xF;
3695 } else {
3696 direct = B43_SHM_SH_OFDMDIRECT;
3697 basic = B43_SHM_SH_OFDMBASIC;
3698 offset = b43_plcp_get_ratecode_ofdm(rate->hw_value);
3699 offset &= 0xF;
3700 }
3701
3702 rate = ieee80211_get_response_rate(sband, brates, rate->bitrate);
3703
3704 if (b43_is_cck_rate(rate->hw_value)) {
3705 basic_offset = b43_plcp_get_ratecode_cck(rate->hw_value);
3706 basic_offset &= 0xF;
3707 } else {
3708 basic_offset = b43_plcp_get_ratecode_ofdm(rate->hw_value);
3709 basic_offset &= 0xF;
3710 }
3711
3712 /*
3713 * Get the pointer that we need to point to
3714 * from the direct map
3715 */
3716 rateptr = b43_shm_read16(dev, B43_SHM_SHARED,
3717 direct + 2 * basic_offset);
3718 /* and write it to the basic map */
3719 b43_shm_write16(dev, B43_SHM_SHARED, basic + 2 * offset,
3720 rateptr);
3721 }
3722}
3723
3724static void b43_op_bss_info_changed(struct ieee80211_hw *hw,
3725 struct ieee80211_vif *vif,
3726 struct ieee80211_bss_conf *conf,
3727 u32 changed)
3728{
3729 struct b43_wl *wl = hw_to_b43_wl(hw);
3730 struct b43_wldev *dev;
Johannes Bergc7ab5ef2008-10-29 20:02:12 +01003731
3732 mutex_lock(&wl->mutex);
3733
3734 dev = wl->current_dev;
Michael Bueschd10d0e52008-12-18 22:13:39 +01003735 if (!dev || b43_status(dev) < B43_STAT_STARTED)
Johannes Bergc7ab5ef2008-10-29 20:02:12 +01003736 goto out_unlock_mutex;
Johannes Berg2d0ddec2009-04-23 16:13:26 +02003737
3738 B43_WARN_ON(wl->vif != vif);
3739
3740 if (changed & BSS_CHANGED_BSSID) {
Johannes Berg2d0ddec2009-04-23 16:13:26 +02003741 if (conf->bssid)
3742 memcpy(wl->bssid, conf->bssid, ETH_ALEN);
3743 else
3744 memset(wl->bssid, 0, ETH_ALEN);
Johannes Berg2d0ddec2009-04-23 16:13:26 +02003745 }
3746
Johannes Berg3f0d8432009-05-18 10:53:18 +02003747 if (b43_status(dev) >= B43_STAT_INITIALIZED) {
3748 if (changed & BSS_CHANGED_BEACON &&
3749 (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
3750 b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) ||
3751 b43_is_mode(wl, NL80211_IFTYPE_ADHOC)))
3752 b43_update_templates(wl);
3753
3754 if (changed & BSS_CHANGED_BSSID)
3755 b43_write_mac_bssid_templates(dev);
3756 }
Johannes Berg3f0d8432009-05-18 10:53:18 +02003757
Johannes Bergc7ab5ef2008-10-29 20:02:12 +01003758 b43_mac_suspend(dev);
3759
Johannes Berg57c4d7b2009-04-23 16:10:04 +02003760 /* Update templates for AP/mesh mode. */
3761 if (changed & BSS_CHANGED_BEACON_INT &&
3762 (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
3763 b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) ||
3764 b43_is_mode(wl, NL80211_IFTYPE_ADHOC)))
3765 b43_set_beacon_int(dev, conf->beacon_int);
3766
Johannes Bergc7ab5ef2008-10-29 20:02:12 +01003767 if (changed & BSS_CHANGED_BASIC_RATES)
3768 b43_update_basic_rates(dev, conf->basic_rates);
3769
3770 if (changed & BSS_CHANGED_ERP_SLOT) {
3771 if (conf->use_short_slot)
3772 b43_short_slot_timing_enable(dev);
3773 else
3774 b43_short_slot_timing_disable(dev);
3775 }
3776
3777 b43_mac_enable(dev);
Michael Bueschd10d0e52008-12-18 22:13:39 +01003778out_unlock_mutex:
Johannes Bergc7ab5ef2008-10-29 20:02:12 +01003779 mutex_unlock(&wl->mutex);
Johannes Bergc7ab5ef2008-10-29 20:02:12 +01003780}
3781
Michael Buesch40faacc2007-10-28 16:29:32 +01003782static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
Johannes Bergdc822b52008-12-29 12:55:09 +01003783 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
3784 struct ieee80211_key_conf *key)
Michael Buesche4d6b792007-09-18 15:39:42 -04003785{
3786 struct b43_wl *wl = hw_to_b43_wl(hw);
Michael Bueschc6dfc9a2007-10-28 15:59:58 +01003787 struct b43_wldev *dev;
Michael Buesche4d6b792007-09-18 15:39:42 -04003788 u8 algorithm;
3789 u8 index;
Michael Bueschc6dfc9a2007-10-28 15:59:58 +01003790 int err;
Michael Buesch060210f2009-01-25 15:49:59 +01003791 static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
Michael Buesche4d6b792007-09-18 15:39:42 -04003792
3793 if (modparam_nohwcrypt)
3794 return -ENOSPC; /* User disabled HW-crypto */
3795
Michael Bueschc6dfc9a2007-10-28 15:59:58 +01003796 mutex_lock(&wl->mutex);
Michael Bueschc6dfc9a2007-10-28 15:59:58 +01003797
3798 dev = wl->current_dev;
3799 err = -ENODEV;
3800 if (!dev || b43_status(dev) < B43_STAT_INITIALIZED)
3801 goto out_unlock;
3802
Michael Buesch403a3a12009-06-08 21:04:57 +02003803 if (dev->fw.pcm_request_failed || !dev->hwcrypto_enabled) {
Michael Buesch68217832008-05-17 23:43:57 +02003804 /* We don't have firmware for the crypto engine.
3805 * Must use software-crypto. */
3806 err = -EOPNOTSUPP;
3807 goto out_unlock;
3808 }
3809
Michael Bueschc6dfc9a2007-10-28 15:59:58 +01003810 err = -EINVAL;
Johannes Berg97359d12010-08-10 09:46:38 +02003811 switch (key->cipher) {
3812 case WLAN_CIPHER_SUITE_WEP40:
3813 algorithm = B43_SEC_ALGO_WEP40;
Michael Buesche4d6b792007-09-18 15:39:42 -04003814 break;
Johannes Berg97359d12010-08-10 09:46:38 +02003815 case WLAN_CIPHER_SUITE_WEP104:
3816 algorithm = B43_SEC_ALGO_WEP104;
3817 break;
3818 case WLAN_CIPHER_SUITE_TKIP:
Michael Buesche4d6b792007-09-18 15:39:42 -04003819 algorithm = B43_SEC_ALGO_TKIP;
3820 break;
Johannes Berg97359d12010-08-10 09:46:38 +02003821 case WLAN_CIPHER_SUITE_CCMP:
Michael Buesche4d6b792007-09-18 15:39:42 -04003822 algorithm = B43_SEC_ALGO_AES;
3823 break;
3824 default:
3825 B43_WARN_ON(1);
Michael Buesche4d6b792007-09-18 15:39:42 -04003826 goto out_unlock;
3827 }
Michael Bueschc6dfc9a2007-10-28 15:59:58 +01003828 index = (u8) (key->keyidx);
3829 if (index > 3)
3830 goto out_unlock;
Michael Buesche4d6b792007-09-18 15:39:42 -04003831
3832 switch (cmd) {
3833 case SET_KEY:
gregor kowski035d0242009-08-19 22:35:45 +02003834 if (algorithm == B43_SEC_ALGO_TKIP &&
3835 (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE) ||
3836 !modparam_hwtkip)) {
3837 /* We support only pairwise key */
Michael Buesche4d6b792007-09-18 15:39:42 -04003838 err = -EOPNOTSUPP;
3839 goto out_unlock;
3840 }
3841
Michael Buesche808e582008-12-19 21:30:52 +01003842 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
Johannes Bergdc822b52008-12-29 12:55:09 +01003843 if (WARN_ON(!sta)) {
3844 err = -EOPNOTSUPP;
3845 goto out_unlock;
3846 }
Michael Buesche808e582008-12-19 21:30:52 +01003847 /* Pairwise key with an assigned MAC address. */
Michael Buesche4d6b792007-09-18 15:39:42 -04003848 err = b43_key_write(dev, -1, algorithm,
Johannes Bergdc822b52008-12-29 12:55:09 +01003849 key->key, key->keylen,
3850 sta->addr, key);
Michael Buesche808e582008-12-19 21:30:52 +01003851 } else {
3852 /* Group key */
3853 err = b43_key_write(dev, index, algorithm,
3854 key->key, key->keylen, NULL, key);
Michael Buesche4d6b792007-09-18 15:39:42 -04003855 }
3856 if (err)
3857 goto out_unlock;
3858
3859 if (algorithm == B43_SEC_ALGO_WEP40 ||
3860 algorithm == B43_SEC_ALGO_WEP104) {
3861 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS);
3862 } else {
3863 b43_hf_write(dev,
3864 b43_hf_read(dev) & ~B43_HF_USEDEFKEYS);
3865 }
3866 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
gregor kowski035d0242009-08-19 22:35:45 +02003867 if (algorithm == B43_SEC_ALGO_TKIP)
3868 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
Michael Buesche4d6b792007-09-18 15:39:42 -04003869 break;
3870 case DISABLE_KEY: {
3871 err = b43_key_clear(dev, key->hw_key_idx);
3872 if (err)
3873 goto out_unlock;
3874 break;
3875 }
3876 default:
3877 B43_WARN_ON(1);
3878 }
Michael Buesch9cf7f242008-12-19 20:24:30 +01003879
Michael Buesche4d6b792007-09-18 15:39:42 -04003880out_unlock:
Michael Buesche4d6b792007-09-18 15:39:42 -04003881 if (!err) {
3882 b43dbg(wl, "%s hardware based encryption for keyidx: %d, "
Johannes Berge1749612008-10-27 15:59:26 -07003883 "mac: %pM\n",
Michael Buesche4d6b792007-09-18 15:39:42 -04003884 cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
Larry Fingera1d882102009-01-14 11:15:25 -06003885 sta ? sta->addr : bcast_addr);
Michael Buesch9cf7f242008-12-19 20:24:30 +01003886 b43_dump_keymemory(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04003887 }
Michael Buesch9cf7f242008-12-19 20:24:30 +01003888 mutex_unlock(&wl->mutex);
3889
Michael Buesche4d6b792007-09-18 15:39:42 -04003890 return err;
3891}
3892
Michael Buesch40faacc2007-10-28 16:29:32 +01003893static void b43_op_configure_filter(struct ieee80211_hw *hw,
3894 unsigned int changed, unsigned int *fflags,
Johannes Berg3ac64be2009-08-17 16:16:53 +02003895 u64 multicast)
Michael Buesche4d6b792007-09-18 15:39:42 -04003896{
3897 struct b43_wl *wl = hw_to_b43_wl(hw);
Michael Buesch36dbd952009-09-04 22:51:29 +02003898 struct b43_wldev *dev;
Michael Buesche4d6b792007-09-18 15:39:42 -04003899
Michael Buesch36dbd952009-09-04 22:51:29 +02003900 mutex_lock(&wl->mutex);
3901 dev = wl->current_dev;
Johannes Berg4150c572007-09-17 01:29:23 -04003902 if (!dev) {
3903 *fflags = 0;
Michael Buesch36dbd952009-09-04 22:51:29 +02003904 goto out_unlock;
Michael Buesche4d6b792007-09-18 15:39:42 -04003905 }
Johannes Berg4150c572007-09-17 01:29:23 -04003906
Johannes Berg4150c572007-09-17 01:29:23 -04003907 *fflags &= FIF_PROMISC_IN_BSS |
3908 FIF_ALLMULTI |
3909 FIF_FCSFAIL |
3910 FIF_PLCPFAIL |
3911 FIF_CONTROL |
3912 FIF_OTHER_BSS |
3913 FIF_BCN_PRBRESP_PROMISC;
3914
3915 changed &= FIF_PROMISC_IN_BSS |
3916 FIF_ALLMULTI |
3917 FIF_FCSFAIL |
3918 FIF_PLCPFAIL |
3919 FIF_CONTROL |
3920 FIF_OTHER_BSS |
3921 FIF_BCN_PRBRESP_PROMISC;
3922
3923 wl->filter_flags = *fflags;
3924
3925 if (changed && b43_status(dev) >= B43_STAT_INITIALIZED)
3926 b43_adjust_opmode(dev);
Michael Buesch36dbd952009-09-04 22:51:29 +02003927
3928out_unlock:
3929 mutex_unlock(&wl->mutex);
Michael Buesche4d6b792007-09-18 15:39:42 -04003930}
3931
Michael Buesch36dbd952009-09-04 22:51:29 +02003932/* Locking: wl->mutex
3933 * Returns the current dev. This might be different from the passed in dev,
3934 * because the core might be gone away while we unlocked the mutex. */
3935static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev)
Michael Buesche4d6b792007-09-18 15:39:42 -04003936{
3937 struct b43_wl *wl = dev->wl;
Michael Buesch36dbd952009-09-04 22:51:29 +02003938 struct b43_wldev *orig_dev;
Michael Buesch49d965c2009-10-03 00:57:58 +02003939 u32 mask;
Michael Buesche4d6b792007-09-18 15:39:42 -04003940
Michael Buesch36dbd952009-09-04 22:51:29 +02003941redo:
3942 if (!dev || b43_status(dev) < B43_STAT_STARTED)
3943 return dev;
Stefano Brivioa19d12d2007-11-07 18:16:11 +01003944
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003945 /* Cancel work. Unlock to avoid deadlocks. */
Michael Buesche4d6b792007-09-18 15:39:42 -04003946 mutex_unlock(&wl->mutex);
Michael Buesche4d6b792007-09-18 15:39:42 -04003947 cancel_delayed_work_sync(&dev->periodic_work);
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003948 cancel_work_sync(&wl->tx_work);
Michael Buesche4d6b792007-09-18 15:39:42 -04003949 mutex_lock(&wl->mutex);
Michael Buesch36dbd952009-09-04 22:51:29 +02003950 dev = wl->current_dev;
3951 if (!dev || b43_status(dev) < B43_STAT_STARTED) {
3952 /* Whoops, aliens ate up the device while we were unlocked. */
3953 return dev;
3954 }
Michael Buesche4d6b792007-09-18 15:39:42 -04003955
Michael Buesch36dbd952009-09-04 22:51:29 +02003956 /* Disable interrupts on the device. */
3957 b43_set_status(dev, B43_STAT_INITIALIZED);
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02003958 if (dev->sdev->bus->bustype == SSB_BUSTYPE_SDIO) {
Michael Buesch36dbd952009-09-04 22:51:29 +02003959 /* wl->mutex is locked. That is enough. */
3960 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0);
3961 b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */
3962 } else {
3963 spin_lock_irq(&wl->hardirq_lock);
3964 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0);
3965 b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */
3966 spin_unlock_irq(&wl->hardirq_lock);
3967 }
Michael Buesch176e9f62009-09-11 23:04:04 +02003968 /* Synchronize and free the interrupt handlers. Unlock to avoid deadlocks. */
Michael Buesch36dbd952009-09-04 22:51:29 +02003969 orig_dev = dev;
3970 mutex_unlock(&wl->mutex);
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02003971 if (dev->sdev->bus->bustype == SSB_BUSTYPE_SDIO) {
Michael Buesch176e9f62009-09-11 23:04:04 +02003972 b43_sdio_free_irq(dev);
3973 } else {
Rafał Miłeckia18c7152011-05-18 02:06:40 +02003974 synchronize_irq(dev->dev->irq);
3975 free_irq(dev->dev->irq, dev);
Michael Buesch176e9f62009-09-11 23:04:04 +02003976 }
Michael Buesch36dbd952009-09-04 22:51:29 +02003977 mutex_lock(&wl->mutex);
3978 dev = wl->current_dev;
3979 if (!dev)
3980 return dev;
3981 if (dev != orig_dev) {
3982 if (b43_status(dev) >= B43_STAT_STARTED)
3983 goto redo;
3984 return dev;
3985 }
Michael Buesch49d965c2009-10-03 00:57:58 +02003986 mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
3987 B43_WARN_ON(mask != 0xFFFFFFFF && mask);
Michael Buesch36dbd952009-09-04 22:51:29 +02003988
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003989 /* Drain the TX queue */
3990 while (skb_queue_len(&wl->tx_queue))
3991 dev_kfree_skb(skb_dequeue(&wl->tx_queue));
3992
Michael Buesche4d6b792007-09-18 15:39:42 -04003993 b43_mac_suspend(dev);
Michael Buescha78b3bb2009-09-11 21:44:05 +02003994 b43_leds_exit(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04003995 b43dbg(wl, "Wireless interface stopped\n");
Michael Buesch36dbd952009-09-04 22:51:29 +02003996
3997 return dev;
Michael Buesche4d6b792007-09-18 15:39:42 -04003998}
3999
4000/* Locking: wl->mutex */
4001static int b43_wireless_core_start(struct b43_wldev *dev)
4002{
4003 int err;
4004
4005 B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED);
4006
4007 drain_txstatus_queue(dev);
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004008 if (dev->sdev->bus->bustype == SSB_BUSTYPE_SDIO) {
Albert Herranz3dbba8e2009-09-10 19:34:49 +02004009 err = b43_sdio_request_irq(dev, b43_sdio_interrupt_handler);
4010 if (err) {
4011 b43err(dev->wl, "Cannot request SDIO IRQ\n");
4012 goto out;
4013 }
4014 } else {
Rafał Miłeckia18c7152011-05-18 02:06:40 +02004015 err = request_threaded_irq(dev->dev->irq, b43_interrupt_handler,
Albert Herranz3dbba8e2009-09-10 19:34:49 +02004016 b43_interrupt_thread_handler,
4017 IRQF_SHARED, KBUILD_MODNAME, dev);
4018 if (err) {
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004019 b43err(dev->wl, "Cannot request IRQ-%d\n",
Rafał Miłeckia18c7152011-05-18 02:06:40 +02004020 dev->dev->irq);
Albert Herranz3dbba8e2009-09-10 19:34:49 +02004021 goto out;
4022 }
Michael Buesche4d6b792007-09-18 15:39:42 -04004023 }
4024
4025 /* We are ready to run. */
Larry Finger0866b032010-02-03 13:33:44 -06004026 ieee80211_wake_queues(dev->wl->hw);
Michael Buesche4d6b792007-09-18 15:39:42 -04004027 b43_set_status(dev, B43_STAT_STARTED);
4028
4029 /* Start data flow (TX/RX). */
4030 b43_mac_enable(dev);
Michael Buesch13790722009-04-08 21:26:27 +02004031 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask);
Michael Buesche4d6b792007-09-18 15:39:42 -04004032
Lucas De Marchi25985ed2011-03-30 22:57:33 -03004033 /* Start maintenance work */
Michael Buesche4d6b792007-09-18 15:39:42 -04004034 b43_periodic_tasks_setup(dev);
4035
Michael Buescha78b3bb2009-09-11 21:44:05 +02004036 b43_leds_init(dev);
4037
Michael Buesche4d6b792007-09-18 15:39:42 -04004038 b43dbg(dev->wl, "Wireless interface started\n");
Michael Buescha78b3bb2009-09-11 21:44:05 +02004039out:
Michael Buesche4d6b792007-09-18 15:39:42 -04004040 return err;
4041}
4042
4043/* Get PHY and RADIO versioning numbers */
4044static int b43_phy_versioning(struct b43_wldev *dev)
4045{
4046 struct b43_phy *phy = &dev->phy;
4047 u32 tmp;
4048 u8 analog_type;
4049 u8 phy_type;
4050 u8 phy_rev;
4051 u16 radio_manuf;
4052 u16 radio_ver;
4053 u16 radio_rev;
4054 int unsupported = 0;
4055
4056 /* Get PHY versioning */
4057 tmp = b43_read16(dev, B43_MMIO_PHY_VER);
4058 analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT;
4059 phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT;
4060 phy_rev = (tmp & B43_PHYVER_VERSION);
4061 switch (phy_type) {
4062 case B43_PHYTYPE_A:
4063 if (phy_rev >= 4)
4064 unsupported = 1;
4065 break;
4066 case B43_PHYTYPE_B:
4067 if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6
4068 && phy_rev != 7)
4069 unsupported = 1;
4070 break;
4071 case B43_PHYTYPE_G:
Larry Finger013978b2007-11-26 10:29:47 -06004072 if (phy_rev > 9)
Michael Buesche4d6b792007-09-18 15:39:42 -04004073 unsupported = 1;
4074 break;
Rafał Miłecki692d2c02010-12-07 21:56:00 +01004075#ifdef CONFIG_B43_PHY_N
Michael Bueschd5c71e42008-01-04 17:06:29 +01004076 case B43_PHYTYPE_N:
Rafał Miłeckiab72efd2010-12-21 21:29:44 +01004077 if (phy_rev > 9)
Michael Bueschd5c71e42008-01-04 17:06:29 +01004078 unsupported = 1;
4079 break;
4080#endif
Michael Buesch6b1c7c62008-12-25 00:39:28 +01004081#ifdef CONFIG_B43_PHY_LP
4082 case B43_PHYTYPE_LP:
Gábor Stefanik9d86a2d2009-08-14 14:54:46 +02004083 if (phy_rev > 2)
Michael Buesch6b1c7c62008-12-25 00:39:28 +01004084 unsupported = 1;
4085 break;
4086#endif
Michael Buesche4d6b792007-09-18 15:39:42 -04004087 default:
4088 unsupported = 1;
4089 };
4090 if (unsupported) {
4091 b43err(dev->wl, "FOUND UNSUPPORTED PHY "
4092 "(Analog %u, Type %u, Revision %u)\n",
4093 analog_type, phy_type, phy_rev);
4094 return -EOPNOTSUPP;
4095 }
4096 b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n",
4097 analog_type, phy_type, phy_rev);
4098
4099 /* Get RADIO versioning */
Rafał Miłeckic244e082011-05-18 02:06:41 +02004100 if (dev->dev->chip_id == 0x4317) {
4101 if (dev->dev->chip_rev == 0)
Michael Buesche4d6b792007-09-18 15:39:42 -04004102 tmp = 0x3205017F;
Rafał Miłeckic244e082011-05-18 02:06:41 +02004103 else if (dev->dev->chip_rev == 1)
Michael Buesche4d6b792007-09-18 15:39:42 -04004104 tmp = 0x4205017F;
4105 else
4106 tmp = 0x5205017F;
4107 } else {
4108 b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
Michael Buesch243dcfc2008-01-13 14:12:44 +01004109 tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
Michael Buesche4d6b792007-09-18 15:39:42 -04004110 b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
Michael Buesch243dcfc2008-01-13 14:12:44 +01004111 tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH) << 16;
Michael Buesche4d6b792007-09-18 15:39:42 -04004112 }
4113 radio_manuf = (tmp & 0x00000FFF);
4114 radio_ver = (tmp & 0x0FFFF000) >> 12;
4115 radio_rev = (tmp & 0xF0000000) >> 28;
Michael Buesch96c755a2008-01-06 00:09:46 +01004116 if (radio_manuf != 0x17F /* Broadcom */)
4117 unsupported = 1;
Michael Buesche4d6b792007-09-18 15:39:42 -04004118 switch (phy_type) {
4119 case B43_PHYTYPE_A:
4120 if (radio_ver != 0x2060)
4121 unsupported = 1;
4122 if (radio_rev != 1)
4123 unsupported = 1;
4124 if (radio_manuf != 0x17F)
4125 unsupported = 1;
4126 break;
4127 case B43_PHYTYPE_B:
4128 if ((radio_ver & 0xFFF0) != 0x2050)
4129 unsupported = 1;
4130 break;
4131 case B43_PHYTYPE_G:
4132 if (radio_ver != 0x2050)
4133 unsupported = 1;
4134 break;
Michael Buesch96c755a2008-01-06 00:09:46 +01004135 case B43_PHYTYPE_N:
Johannes Bergbb519be2008-12-24 15:26:40 +01004136 if (radio_ver != 0x2055 && radio_ver != 0x2056)
Michael Buesch96c755a2008-01-06 00:09:46 +01004137 unsupported = 1;
4138 break;
Michael Buesch6b1c7c62008-12-25 00:39:28 +01004139 case B43_PHYTYPE_LP:
Gábor Stefanik9d86a2d2009-08-14 14:54:46 +02004140 if (radio_ver != 0x2062 && radio_ver != 0x2063)
Michael Buesch6b1c7c62008-12-25 00:39:28 +01004141 unsupported = 1;
4142 break;
Michael Buesche4d6b792007-09-18 15:39:42 -04004143 default:
4144 B43_WARN_ON(1);
4145 }
4146 if (unsupported) {
4147 b43err(dev->wl, "FOUND UNSUPPORTED RADIO "
4148 "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
4149 radio_manuf, radio_ver, radio_rev);
4150 return -EOPNOTSUPP;
4151 }
4152 b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n",
4153 radio_manuf, radio_ver, radio_rev);
4154
4155 phy->radio_manuf = radio_manuf;
4156 phy->radio_ver = radio_ver;
4157 phy->radio_rev = radio_rev;
4158
4159 phy->analog = analog_type;
4160 phy->type = phy_type;
4161 phy->rev = phy_rev;
4162
4163 return 0;
4164}
4165
4166static void setup_struct_phy_for_init(struct b43_wldev *dev,
4167 struct b43_phy *phy)
4168{
Michael Buesche4d6b792007-09-18 15:39:42 -04004169 phy->hardware_power_control = !!modparam_hwpctl;
Michael Buesch18c8ade2008-08-28 19:33:40 +02004170 phy->next_txpwr_check_time = jiffies;
Michael Buesch8ed7fc42007-12-09 22:34:59 +01004171 /* PHY TX errors counter. */
4172 atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
Michael Buesch591f3dc2009-03-31 12:27:32 +02004173
4174#if B43_DEBUG
4175 phy->phy_locked = 0;
4176 phy->radio_locked = 0;
4177#endif
Michael Buesche4d6b792007-09-18 15:39:42 -04004178}
4179
4180static void setup_struct_wldev_for_init(struct b43_wldev *dev)
4181{
Michael Bueschaa6c7ae2007-12-26 16:26:36 +01004182 dev->dfq_valid = 0;
4183
Michael Buesch6a724d62007-09-20 22:12:58 +02004184 /* Assume the radio is enabled. If it's not enabled, the state will
4185 * immediately get fixed on the first periodic work run. */
4186 dev->radio_hw_enable = 1;
Michael Buesche4d6b792007-09-18 15:39:42 -04004187
4188 /* Stats */
4189 memset(&dev->stats, 0, sizeof(dev->stats));
4190
4191 setup_struct_phy_for_init(dev, &dev->phy);
4192
4193 /* IRQ related flags */
4194 dev->irq_reason = 0;
4195 memset(dev->dma_reason, 0, sizeof(dev->dma_reason));
Michael Buesch13790722009-04-08 21:26:27 +02004196 dev->irq_mask = B43_IRQ_MASKTEMPLATE;
Michael Buesch3e3ccb32009-03-19 19:27:21 +01004197 if (b43_modparam_verbose < B43_VERBOSITY_DEBUG)
Michael Buesch13790722009-04-08 21:26:27 +02004198 dev->irq_mask &= ~B43_IRQ_PHY_TXERR;
Michael Buesche4d6b792007-09-18 15:39:42 -04004199
4200 dev->mac_suspended = 1;
4201
4202 /* Noise calculation context */
4203 memset(&dev->noisecalc, 0, sizeof(dev->noisecalc));
4204}
4205
4206static void b43_bluetooth_coext_enable(struct b43_wldev *dev)
4207{
Rafał Miłecki05814832011-05-18 02:06:39 +02004208 struct ssb_sprom *sprom = dev->dev->bus_sprom;
Michael Buescha259d6a2008-04-18 21:06:37 +02004209 u64 hf;
Michael Buesche4d6b792007-09-18 15:39:42 -04004210
Michael Buesch1855ba72008-04-18 20:51:41 +02004211 if (!modparam_btcoex)
4212 return;
Larry Finger95de2842007-11-09 16:57:18 -06004213 if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST))
Michael Buesche4d6b792007-09-18 15:39:42 -04004214 return;
4215 if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode)
4216 return;
4217
4218 hf = b43_hf_read(dev);
Larry Finger95de2842007-11-09 16:57:18 -06004219 if (sprom->boardflags_lo & B43_BFL_BTCMOD)
Michael Buesche4d6b792007-09-18 15:39:42 -04004220 hf |= B43_HF_BTCOEXALT;
4221 else
4222 hf |= B43_HF_BTCOEX;
4223 b43_hf_write(dev, hf);
Michael Buesche4d6b792007-09-18 15:39:42 -04004224}
4225
4226static void b43_bluetooth_coext_disable(struct b43_wldev *dev)
Michael Buesch1855ba72008-04-18 20:51:41 +02004227{
4228 if (!modparam_btcoex)
4229 return;
4230 //TODO
Michael Buesche4d6b792007-09-18 15:39:42 -04004231}
4232
4233static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev)
4234{
Rafał Miłeckid48ae5c2011-05-19 15:11:26 +02004235 struct ssb_bus *bus;
Michael Buesche4d6b792007-09-18 15:39:42 -04004236 u32 tmp;
4237
Rafał Miłeckid48ae5c2011-05-19 15:11:26 +02004238 if (dev->dev->bus_type != B43_BUS_SSB)
4239 return;
4240
4241 bus = dev->dev->sdev->bus;
4242
Rafał Miłecki0fd82ea2011-05-11 02:10:59 +02004243 if ((bus->chip_id == 0x4311 && bus->chip_rev == 2) ||
4244 (bus->chip_id == 0x4312)) {
Rafał Miłeckid48ae5c2011-05-19 15:11:26 +02004245 tmp = ssb_read32(dev->dev->sdev, SSB_IMCFGLO);
Rafał Miłecki0fd82ea2011-05-11 02:10:59 +02004246 tmp &= ~SSB_IMCFGLO_REQTO;
4247 tmp &= ~SSB_IMCFGLO_SERTO;
4248 tmp |= 0x3;
Rafał Miłeckid48ae5c2011-05-19 15:11:26 +02004249 ssb_write32(dev->dev->sdev, SSB_IMCFGLO, tmp);
Rafał Miłecki0fd82ea2011-05-11 02:10:59 +02004250 ssb_commit_settings(bus);
Michael Buesche4d6b792007-09-18 15:39:42 -04004251 }
Michael Buesche4d6b792007-09-18 15:39:42 -04004252}
4253
Michael Bueschd59f7202008-04-03 18:56:19 +02004254static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle)
4255{
4256 u16 pu_delay;
4257
4258 /* The time value is in microseconds. */
4259 if (dev->phy.type == B43_PHYTYPE_A)
4260 pu_delay = 3700;
4261 else
4262 pu_delay = 1050;
Johannes Berg05c914f2008-09-11 00:01:58 +02004263 if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC) || idle)
Michael Bueschd59f7202008-04-03 18:56:19 +02004264 pu_delay = 500;
4265 if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8))
4266 pu_delay = max(pu_delay, (u16)2400);
4267
4268 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay);
4269}
4270
4271/* Set the TSF CFP pre-TargetBeaconTransmissionTime. */
4272static void b43_set_pretbtt(struct b43_wldev *dev)
4273{
4274 u16 pretbtt;
4275
4276 /* The time value is in microseconds. */
Johannes Berg05c914f2008-09-11 00:01:58 +02004277 if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) {
Michael Bueschd59f7202008-04-03 18:56:19 +02004278 pretbtt = 2;
4279 } else {
4280 if (dev->phy.type == B43_PHYTYPE_A)
4281 pretbtt = 120;
4282 else
4283 pretbtt = 250;
4284 }
4285 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt);
4286 b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt);
4287}
4288
Michael Buesche4d6b792007-09-18 15:39:42 -04004289/* Shutdown a wireless core */
4290/* Locking: wl->mutex */
4291static void b43_wireless_core_exit(struct b43_wldev *dev)
4292{
Michael Buesch1f7d87b2008-01-22 20:23:34 +01004293 u32 macctl;
Michael Buesche4d6b792007-09-18 15:39:42 -04004294
Michael Buesch36dbd952009-09-04 22:51:29 +02004295 B43_WARN_ON(dev && b43_status(dev) > B43_STAT_INITIALIZED);
4296 if (!dev || b43_status(dev) != B43_STAT_INITIALIZED)
Michael Buesche4d6b792007-09-18 15:39:42 -04004297 return;
John W. Linville84c164a2010-08-06 15:31:45 -04004298
4299 /* Unregister HW RNG driver */
4300 b43_rng_exit(dev->wl);
4301
Michael Buesche4d6b792007-09-18 15:39:42 -04004302 b43_set_status(dev, B43_STAT_UNINIT);
4303
Michael Buesch1f7d87b2008-01-22 20:23:34 +01004304 /* Stop the microcode PSM. */
4305 macctl = b43_read32(dev, B43_MMIO_MACCTL);
4306 macctl &= ~B43_MACCTL_PSM_RUN;
4307 macctl |= B43_MACCTL_PSM_JMP0;
4308 b43_write32(dev, B43_MMIO_MACCTL, macctl);
4309
Michael Buesche4d6b792007-09-18 15:39:42 -04004310 b43_dma_free(dev);
Michael Buesch5100d5a2008-03-29 21:01:16 +01004311 b43_pio_free(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004312 b43_chip_exit(dev);
Michael Bueschcb24f572008-09-03 12:12:20 +02004313 dev->phy.ops->switch_analog(dev, 0);
Michael Buesche66fee62007-12-26 17:47:10 +01004314 if (dev->wl->current_beacon) {
4315 dev_kfree_skb_any(dev->wl->current_beacon);
4316 dev->wl->current_beacon = NULL;
4317 }
4318
Rafał Miłecki24ca39d2011-05-18 02:06:43 +02004319 b43_device_disable(dev, 0);
4320 b43_bus_may_powerdown(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004321}
4322
4323/* Initialize a wireless core */
4324static int b43_wireless_core_init(struct b43_wldev *dev)
4325{
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004326 struct ssb_bus *bus = dev->sdev->bus;
Rafał Miłecki05814832011-05-18 02:06:39 +02004327 struct ssb_sprom *sprom = dev->dev->bus_sprom;
Michael Buesche4d6b792007-09-18 15:39:42 -04004328 struct b43_phy *phy = &dev->phy;
4329 int err;
Michael Buescha259d6a2008-04-18 21:06:37 +02004330 u64 hf;
4331 u32 tmp;
Michael Buesche4d6b792007-09-18 15:39:42 -04004332
4333 B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
4334
Rafał Miłecki24ca39d2011-05-18 02:06:43 +02004335 err = b43_bus_powerup(dev, 0);
Michael Buesche4d6b792007-09-18 15:39:42 -04004336 if (err)
4337 goto out;
Rafał Miłecki24ca39d2011-05-18 02:06:43 +02004338 if (!b43_device_is_enabled(dev)) {
Michael Buesche4d6b792007-09-18 15:39:42 -04004339 tmp = phy->gmode ? B43_TMSLOW_GMODE : 0;
4340 b43_wireless_core_reset(dev, tmp);
4341 }
4342
Michael Bueschfb111372008-09-02 13:00:34 +02004343 /* Reset all data structures. */
Michael Buesche4d6b792007-09-18 15:39:42 -04004344 setup_struct_wldev_for_init(dev);
Michael Bueschfb111372008-09-02 13:00:34 +02004345 phy->ops->prepare_structs(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004346
4347 /* Enable IRQ routing to this device. */
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004348 ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->sdev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004349
4350 b43_imcfglo_timeouts_workaround(dev);
4351 b43_bluetooth_coext_disable(dev);
Michael Bueschfb111372008-09-02 13:00:34 +02004352 if (phy->ops->prepare_hardware) {
4353 err = phy->ops->prepare_hardware(dev);
Michael Bueschef1a6282008-08-27 18:53:02 +02004354 if (err)
Michael Bueschfb111372008-09-02 13:00:34 +02004355 goto err_busdown;
Michael Bueschef1a6282008-08-27 18:53:02 +02004356 }
Michael Buesche4d6b792007-09-18 15:39:42 -04004357 err = b43_chip_init(dev);
4358 if (err)
Michael Bueschfb111372008-09-02 13:00:34 +02004359 goto err_busdown;
Michael Buesche4d6b792007-09-18 15:39:42 -04004360 b43_shm_write16(dev, B43_SHM_SHARED,
Rafał Miłecki21d889d2011-05-18 02:06:38 +02004361 B43_SHM_SH_WLCOREREV, dev->dev->core_rev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004362 hf = b43_hf_read(dev);
4363 if (phy->type == B43_PHYTYPE_G) {
4364 hf |= B43_HF_SYMW;
4365 if (phy->rev == 1)
4366 hf |= B43_HF_GDCW;
Larry Finger95de2842007-11-09 16:57:18 -06004367 if (sprom->boardflags_lo & B43_BFL_PACTRL)
Michael Buesche4d6b792007-09-18 15:39:42 -04004368 hf |= B43_HF_OFDMPABOOST;
Michael Buesch969d15c2009-02-20 14:27:15 +01004369 }
4370 if (phy->radio_ver == 0x2050) {
4371 if (phy->radio_rev == 6)
4372 hf |= B43_HF_4318TSSI;
4373 if (phy->radio_rev < 6)
4374 hf |= B43_HF_VCORECALC;
Michael Buesche4d6b792007-09-18 15:39:42 -04004375 }
Michael Buesch1cc8f472009-02-20 14:47:56 +01004376 if (sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW)
4377 hf |= B43_HF_DSCRQ; /* Disable slowclock requests from ucode. */
Michael Buesch1a777332009-03-04 16:41:10 +01004378#ifdef CONFIG_SSB_DRIVER_PCICORE
Michael Buesch88219052009-02-20 14:58:59 +01004379 if ((bus->bustype == SSB_BUSTYPE_PCI) &&
4380 (bus->pcicore.dev->id.revision <= 10))
4381 hf |= B43_HF_PCISCW; /* PCI slow clock workaround. */
Michael Buesch1a777332009-03-04 16:41:10 +01004382#endif
Michael Buesch25d3ef52009-02-20 15:39:21 +01004383 hf &= ~B43_HF_SKCFPUP;
Michael Buesche4d6b792007-09-18 15:39:42 -04004384 b43_hf_write(dev, hf);
4385
Michael Buesch74cfdba2007-10-28 16:19:44 +01004386 b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT,
4387 B43_DEFAULT_LONG_RETRY_LIMIT);
Michael Buesche4d6b792007-09-18 15:39:42 -04004388 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3);
4389 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2);
4390
4391 /* Disable sending probe responses from firmware.
4392 * Setting the MaxTime to one usec will always trigger
4393 * a timeout, so we never send any probe resp.
4394 * A timeout of zero is infinite. */
4395 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1);
4396
4397 b43_rate_memory_init(dev);
Michael Buesch5042c502008-04-05 15:05:00 +02004398 b43_set_phytxctl_defaults(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004399
4400 /* Minimum Contention Window */
Daniel Nguc5a079f2010-03-23 00:52:44 +13004401 if (phy->type == B43_PHYTYPE_B)
Michael Buesche4d6b792007-09-18 15:39:42 -04004402 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F);
Daniel Nguc5a079f2010-03-23 00:52:44 +13004403 else
Michael Buesche4d6b792007-09-18 15:39:42 -04004404 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF);
Michael Buesche4d6b792007-09-18 15:39:42 -04004405 /* Maximum Contention Window */
4406 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF);
4407
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004408 if ((dev->sdev->bus->bustype == SSB_BUSTYPE_PCMCIA) ||
4409 (dev->sdev->bus->bustype == SSB_BUSTYPE_SDIO) ||
Linus Torvalds9e3bd912010-02-26 10:34:27 -08004410 dev->use_pio) {
Michael Buesch5100d5a2008-03-29 21:01:16 +01004411 dev->__using_pio_transfers = 1;
4412 err = b43_pio_init(dev);
4413 } else {
4414 dev->__using_pio_transfers = 0;
4415 err = b43_dma_init(dev);
4416 }
Michael Buesche4d6b792007-09-18 15:39:42 -04004417 if (err)
4418 goto err_chip_exit;
Michael Buesch03b29772007-12-26 14:41:30 +01004419 b43_qos_init(dev);
Michael Bueschd59f7202008-04-03 18:56:19 +02004420 b43_set_synth_pu_delay(dev, 1);
Michael Buesche4d6b792007-09-18 15:39:42 -04004421 b43_bluetooth_coext_enable(dev);
4422
Rafał Miłecki24ca39d2011-05-18 02:06:43 +02004423 b43_bus_powerup(dev, !(sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW));
Johannes Berg4150c572007-09-17 01:29:23 -04004424 b43_upload_card_macaddress(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004425 b43_security_init(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004426
Michael Buesch5ab95492009-09-10 20:31:46 +02004427 ieee80211_wake_queues(dev->wl->hw);
Michael Buesche4d6b792007-09-18 15:39:42 -04004428
4429 b43_set_status(dev, B43_STAT_INITIALIZED);
4430
John W. Linville84c164a2010-08-06 15:31:45 -04004431 /* Register HW RNG driver */
4432 b43_rng_init(dev->wl);
4433
Larry Finger1a8d1222007-12-14 13:59:11 +01004434out:
Michael Buesche4d6b792007-09-18 15:39:42 -04004435 return err;
4436
Michael Bueschef1a6282008-08-27 18:53:02 +02004437err_chip_exit:
Michael Buesche4d6b792007-09-18 15:39:42 -04004438 b43_chip_exit(dev);
Michael Bueschef1a6282008-08-27 18:53:02 +02004439err_busdown:
Rafał Miłecki24ca39d2011-05-18 02:06:43 +02004440 b43_bus_may_powerdown(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004441 B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
4442 return err;
4443}
4444
Michael Buesch40faacc2007-10-28 16:29:32 +01004445static int b43_op_add_interface(struct ieee80211_hw *hw,
Johannes Berg1ed32e42009-12-23 13:15:45 +01004446 struct ieee80211_vif *vif)
Michael Buesche4d6b792007-09-18 15:39:42 -04004447{
4448 struct b43_wl *wl = hw_to_b43_wl(hw);
4449 struct b43_wldev *dev;
Michael Buesche4d6b792007-09-18 15:39:42 -04004450 int err = -EOPNOTSUPP;
Johannes Berg4150c572007-09-17 01:29:23 -04004451
4452 /* TODO: allow WDS/AP devices to coexist */
4453
Johannes Berg1ed32e42009-12-23 13:15:45 +01004454 if (vif->type != NL80211_IFTYPE_AP &&
4455 vif->type != NL80211_IFTYPE_MESH_POINT &&
4456 vif->type != NL80211_IFTYPE_STATION &&
4457 vif->type != NL80211_IFTYPE_WDS &&
4458 vif->type != NL80211_IFTYPE_ADHOC)
Johannes Berg4150c572007-09-17 01:29:23 -04004459 return -EOPNOTSUPP;
Michael Buesche4d6b792007-09-18 15:39:42 -04004460
4461 mutex_lock(&wl->mutex);
Johannes Berg4150c572007-09-17 01:29:23 -04004462 if (wl->operating)
Michael Buesche4d6b792007-09-18 15:39:42 -04004463 goto out_mutex_unlock;
4464
Johannes Berg1ed32e42009-12-23 13:15:45 +01004465 b43dbg(wl, "Adding Interface type %d\n", vif->type);
Michael Buesche4d6b792007-09-18 15:39:42 -04004466
4467 dev = wl->current_dev;
Johannes Berg4150c572007-09-17 01:29:23 -04004468 wl->operating = 1;
Johannes Berg1ed32e42009-12-23 13:15:45 +01004469 wl->vif = vif;
4470 wl->if_type = vif->type;
4471 memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
Michael Buesche4d6b792007-09-18 15:39:42 -04004472
Michael Buesche4d6b792007-09-18 15:39:42 -04004473 b43_adjust_opmode(dev);
Michael Bueschd59f7202008-04-03 18:56:19 +02004474 b43_set_pretbtt(dev);
4475 b43_set_synth_pu_delay(dev, 0);
Johannes Berg4150c572007-09-17 01:29:23 -04004476 b43_upload_card_macaddress(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004477
4478 err = 0;
Johannes Berg4150c572007-09-17 01:29:23 -04004479 out_mutex_unlock:
Michael Buesche4d6b792007-09-18 15:39:42 -04004480 mutex_unlock(&wl->mutex);
4481
4482 return err;
4483}
4484
Michael Buesch40faacc2007-10-28 16:29:32 +01004485static void b43_op_remove_interface(struct ieee80211_hw *hw,
Johannes Berg1ed32e42009-12-23 13:15:45 +01004486 struct ieee80211_vif *vif)
Michael Buesche4d6b792007-09-18 15:39:42 -04004487{
4488 struct b43_wl *wl = hw_to_b43_wl(hw);
Johannes Berg4150c572007-09-17 01:29:23 -04004489 struct b43_wldev *dev = wl->current_dev;
Michael Buesche4d6b792007-09-18 15:39:42 -04004490
Johannes Berg1ed32e42009-12-23 13:15:45 +01004491 b43dbg(wl, "Removing Interface type %d\n", vif->type);
Michael Buesche4d6b792007-09-18 15:39:42 -04004492
4493 mutex_lock(&wl->mutex);
Johannes Berg4150c572007-09-17 01:29:23 -04004494
4495 B43_WARN_ON(!wl->operating);
Johannes Berg1ed32e42009-12-23 13:15:45 +01004496 B43_WARN_ON(wl->vif != vif);
Johannes Berg32bfd352007-12-19 01:31:26 +01004497 wl->vif = NULL;
Johannes Berg4150c572007-09-17 01:29:23 -04004498
4499 wl->operating = 0;
4500
Johannes Berg4150c572007-09-17 01:29:23 -04004501 b43_adjust_opmode(dev);
4502 memset(wl->mac_addr, 0, ETH_ALEN);
4503 b43_upload_card_macaddress(dev);
Johannes Berg4150c572007-09-17 01:29:23 -04004504
4505 mutex_unlock(&wl->mutex);
4506}
4507
Michael Buesch40faacc2007-10-28 16:29:32 +01004508static int b43_op_start(struct ieee80211_hw *hw)
Johannes Berg4150c572007-09-17 01:29:23 -04004509{
4510 struct b43_wl *wl = hw_to_b43_wl(hw);
4511 struct b43_wldev *dev = wl->current_dev;
4512 int did_init = 0;
WANG Cong923403b2007-10-16 14:29:38 -07004513 int err = 0;
Johannes Berg4150c572007-09-17 01:29:23 -04004514
Michael Buesch7be1bb62008-01-23 21:10:56 +01004515 /* Kill all old instance specific information to make sure
4516 * the card won't use it in the short timeframe between start
4517 * and mac80211 reconfiguring it. */
4518 memset(wl->bssid, 0, ETH_ALEN);
4519 memset(wl->mac_addr, 0, ETH_ALEN);
4520 wl->filter_flags = 0;
4521 wl->radiotap_enabled = 0;
Michael Buesche6f5b932008-03-05 21:18:49 +01004522 b43_qos_clear(wl);
Michael Buesch6b4bec012008-05-20 12:16:28 +02004523 wl->beacon0_uploaded = 0;
4524 wl->beacon1_uploaded = 0;
4525 wl->beacon_templates_virgin = 1;
Larry Fingerfd4973c2009-06-20 12:58:11 -05004526 wl->radio_enabled = 1;
Michael Buesch7be1bb62008-01-23 21:10:56 +01004527
Johannes Berg4150c572007-09-17 01:29:23 -04004528 mutex_lock(&wl->mutex);
4529
4530 if (b43_status(dev) < B43_STAT_INITIALIZED) {
4531 err = b43_wireless_core_init(dev);
Johannes Bergf41f3f32009-06-07 12:30:34 -05004532 if (err)
Johannes Berg4150c572007-09-17 01:29:23 -04004533 goto out_mutex_unlock;
4534 did_init = 1;
Michael Buesche4d6b792007-09-18 15:39:42 -04004535 }
4536
Johannes Berg4150c572007-09-17 01:29:23 -04004537 if (b43_status(dev) < B43_STAT_STARTED) {
4538 err = b43_wireless_core_start(dev);
4539 if (err) {
4540 if (did_init)
4541 b43_wireless_core_exit(dev);
4542 goto out_mutex_unlock;
4543 }
Michael Buesche4d6b792007-09-18 15:39:42 -04004544 }
Johannes Berg4150c572007-09-17 01:29:23 -04004545
Johannes Bergf41f3f32009-06-07 12:30:34 -05004546 /* XXX: only do if device doesn't support rfkill irq */
4547 wiphy_rfkill_start_polling(hw->wiphy);
4548
Johannes Berg4150c572007-09-17 01:29:23 -04004549 out_mutex_unlock:
4550 mutex_unlock(&wl->mutex);
4551
4552 return err;
4553}
4554
Michael Buesch40faacc2007-10-28 16:29:32 +01004555static void b43_op_stop(struct ieee80211_hw *hw)
Johannes Berg4150c572007-09-17 01:29:23 -04004556{
4557 struct b43_wl *wl = hw_to_b43_wl(hw);
4558 struct b43_wldev *dev = wl->current_dev;
4559
Michael Buescha82d9922008-04-04 21:40:06 +02004560 cancel_work_sync(&(wl->beacon_update_trigger));
Larry Finger1a8d1222007-12-14 13:59:11 +01004561
Johannes Berg4150c572007-09-17 01:29:23 -04004562 mutex_lock(&wl->mutex);
Michael Buesch36dbd952009-09-04 22:51:29 +02004563 if (b43_status(dev) >= B43_STAT_STARTED) {
4564 dev = b43_wireless_core_stop(dev);
4565 if (!dev)
4566 goto out_unlock;
4567 }
Johannes Berg4150c572007-09-17 01:29:23 -04004568 b43_wireless_core_exit(dev);
Larry Fingerfd4973c2009-06-20 12:58:11 -05004569 wl->radio_enabled = 0;
Michael Buesch36dbd952009-09-04 22:51:29 +02004570
4571out_unlock:
Michael Buesche4d6b792007-09-18 15:39:42 -04004572 mutex_unlock(&wl->mutex);
Michael Buesch18c8ade2008-08-28 19:33:40 +02004573
4574 cancel_work_sync(&(wl->txpower_adjust_work));
Michael Buesche4d6b792007-09-18 15:39:42 -04004575}
4576
Johannes Berg17741cd2008-09-11 00:02:02 +02004577static int b43_op_beacon_set_tim(struct ieee80211_hw *hw,
4578 struct ieee80211_sta *sta, bool set)
Michael Buesche66fee62007-12-26 17:47:10 +01004579{
4580 struct b43_wl *wl = hw_to_b43_wl(hw);
Michael Buesche66fee62007-12-26 17:47:10 +01004581
Felix Fietkau8f611282009-11-07 18:37:37 +01004582 /* FIXME: add locking */
Johannes Berg9d139c82008-07-09 14:40:37 +02004583 b43_update_templates(wl);
Michael Buesche66fee62007-12-26 17:47:10 +01004584
4585 return 0;
4586}
4587
Johannes Berg38968d02008-02-25 16:27:50 +01004588static void b43_op_sta_notify(struct ieee80211_hw *hw,
4589 struct ieee80211_vif *vif,
4590 enum sta_notify_cmd notify_cmd,
Johannes Berg17741cd2008-09-11 00:02:02 +02004591 struct ieee80211_sta *sta)
Johannes Berg38968d02008-02-25 16:27:50 +01004592{
4593 struct b43_wl *wl = hw_to_b43_wl(hw);
4594
4595 B43_WARN_ON(!vif || wl->vif != vif);
4596}
4597
Michael Buesch25d3ef52009-02-20 15:39:21 +01004598static void b43_op_sw_scan_start_notifier(struct ieee80211_hw *hw)
4599{
4600 struct b43_wl *wl = hw_to_b43_wl(hw);
4601 struct b43_wldev *dev;
4602
4603 mutex_lock(&wl->mutex);
4604 dev = wl->current_dev;
4605 if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) {
4606 /* Disable CFP update during scan on other channels. */
4607 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_SKCFPUP);
4608 }
4609 mutex_unlock(&wl->mutex);
4610}
4611
4612static void b43_op_sw_scan_complete_notifier(struct ieee80211_hw *hw)
4613{
4614 struct b43_wl *wl = hw_to_b43_wl(hw);
4615 struct b43_wldev *dev;
4616
4617 mutex_lock(&wl->mutex);
4618 dev = wl->current_dev;
4619 if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) {
4620 /* Re-enable CFP update. */
4621 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_SKCFPUP);
4622 }
4623 mutex_unlock(&wl->mutex);
4624}
4625
John W. Linville354b4f02010-04-29 15:56:06 -04004626static int b43_op_get_survey(struct ieee80211_hw *hw, int idx,
4627 struct survey_info *survey)
4628{
4629 struct b43_wl *wl = hw_to_b43_wl(hw);
4630 struct b43_wldev *dev = wl->current_dev;
4631 struct ieee80211_conf *conf = &hw->conf;
4632
4633 if (idx != 0)
4634 return -ENOENT;
4635
4636 survey->channel = conf->channel;
4637 survey->filled = SURVEY_INFO_NOISE_DBM;
4638 survey->noise = dev->stats.link_noise;
4639
4640 return 0;
4641}
4642
Michael Buesche4d6b792007-09-18 15:39:42 -04004643static const struct ieee80211_ops b43_hw_ops = {
Michael Buesch40faacc2007-10-28 16:29:32 +01004644 .tx = b43_op_tx,
4645 .conf_tx = b43_op_conf_tx,
4646 .add_interface = b43_op_add_interface,
4647 .remove_interface = b43_op_remove_interface,
4648 .config = b43_op_config,
Johannes Bergc7ab5ef2008-10-29 20:02:12 +01004649 .bss_info_changed = b43_op_bss_info_changed,
Michael Buesch40faacc2007-10-28 16:29:32 +01004650 .configure_filter = b43_op_configure_filter,
4651 .set_key = b43_op_set_key,
gregor kowski035d0242009-08-19 22:35:45 +02004652 .update_tkip_key = b43_op_update_tkip_key,
Michael Buesch40faacc2007-10-28 16:29:32 +01004653 .get_stats = b43_op_get_stats,
Alina Friedrichsen08e87a82009-01-25 15:28:28 +01004654 .get_tsf = b43_op_get_tsf,
4655 .set_tsf = b43_op_set_tsf,
Michael Buesch40faacc2007-10-28 16:29:32 +01004656 .start = b43_op_start,
4657 .stop = b43_op_stop,
Michael Buesche66fee62007-12-26 17:47:10 +01004658 .set_tim = b43_op_beacon_set_tim,
Johannes Berg38968d02008-02-25 16:27:50 +01004659 .sta_notify = b43_op_sta_notify,
Michael Buesch25d3ef52009-02-20 15:39:21 +01004660 .sw_scan_start = b43_op_sw_scan_start_notifier,
4661 .sw_scan_complete = b43_op_sw_scan_complete_notifier,
John W. Linville354b4f02010-04-29 15:56:06 -04004662 .get_survey = b43_op_get_survey,
Johannes Bergf41f3f32009-06-07 12:30:34 -05004663 .rfkill_poll = b43_rfkill_poll,
Michael Buesche4d6b792007-09-18 15:39:42 -04004664};
4665
4666/* Hard-reset the chip. Do not call this directly.
4667 * Use b43_controller_restart()
4668 */
4669static void b43_chip_reset(struct work_struct *work)
4670{
4671 struct b43_wldev *dev =
4672 container_of(work, struct b43_wldev, restart_work);
4673 struct b43_wl *wl = dev->wl;
4674 int err = 0;
4675 int prev_status;
4676
4677 mutex_lock(&wl->mutex);
4678
4679 prev_status = b43_status(dev);
4680 /* Bring the device down... */
Michael Buesch36dbd952009-09-04 22:51:29 +02004681 if (prev_status >= B43_STAT_STARTED) {
4682 dev = b43_wireless_core_stop(dev);
4683 if (!dev) {
4684 err = -ENODEV;
4685 goto out;
4686 }
4687 }
Michael Buesche4d6b792007-09-18 15:39:42 -04004688 if (prev_status >= B43_STAT_INITIALIZED)
4689 b43_wireless_core_exit(dev);
4690
4691 /* ...and up again. */
4692 if (prev_status >= B43_STAT_INITIALIZED) {
4693 err = b43_wireless_core_init(dev);
4694 if (err)
4695 goto out;
4696 }
4697 if (prev_status >= B43_STAT_STARTED) {
4698 err = b43_wireless_core_start(dev);
4699 if (err) {
4700 b43_wireless_core_exit(dev);
4701 goto out;
4702 }
4703 }
Michael Buesch3bf0a322008-05-22 16:32:16 +02004704out:
4705 if (err)
4706 wl->current_dev = NULL; /* Failed to init the dev. */
Michael Buesche4d6b792007-09-18 15:39:42 -04004707 mutex_unlock(&wl->mutex);
4708 if (err)
4709 b43err(wl, "Controller restart FAILED\n");
4710 else
4711 b43info(wl, "Controller restarted\n");
4712}
4713
Michael Bueschbb1eeff2008-02-09 12:08:58 +01004714static int b43_setup_bands(struct b43_wldev *dev,
Michael Buesch96c755a2008-01-06 00:09:46 +01004715 bool have_2ghz_phy, bool have_5ghz_phy)
Michael Buesche4d6b792007-09-18 15:39:42 -04004716{
4717 struct ieee80211_hw *hw = dev->wl->hw;
Michael Buesche4d6b792007-09-18 15:39:42 -04004718
Michael Bueschbb1eeff2008-02-09 12:08:58 +01004719 if (have_2ghz_phy)
4720 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz;
4721 if (dev->phy.type == B43_PHYTYPE_N) {
4722 if (have_5ghz_phy)
4723 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_nphy;
4724 } else {
4725 if (have_5ghz_phy)
4726 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy;
4727 }
Michael Buesche4d6b792007-09-18 15:39:42 -04004728
Michael Bueschbb1eeff2008-02-09 12:08:58 +01004729 dev->phy.supports_2ghz = have_2ghz_phy;
4730 dev->phy.supports_5ghz = have_5ghz_phy;
Michael Buesche4d6b792007-09-18 15:39:42 -04004731
4732 return 0;
4733}
4734
4735static void b43_wireless_core_detach(struct b43_wldev *dev)
4736{
4737 /* We release firmware that late to not be required to re-request
4738 * is all the time when we reinit the core. */
4739 b43_release_firmware(dev);
Michael Bueschfb111372008-09-02 13:00:34 +02004740 b43_phy_free(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004741}
4742
4743static int b43_wireless_core_attach(struct b43_wldev *dev)
4744{
4745 struct b43_wl *wl = dev->wl;
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004746 struct ssb_bus *bus = dev->sdev->bus;
Michael Buesch899110f2009-10-09 20:30:10 +02004747 struct pci_dev *pdev = (bus->bustype == SSB_BUSTYPE_PCI) ? bus->host_pci : NULL;
Michael Buesche4d6b792007-09-18 15:39:42 -04004748 int err;
Michael Buesch96c755a2008-01-06 00:09:46 +01004749 bool have_2ghz_phy = 0, have_5ghz_phy = 0;
Michael Buesche4d6b792007-09-18 15:39:42 -04004750 u32 tmp;
4751
4752 /* Do NOT do any device initialization here.
4753 * Do it in wireless_core_init() instead.
4754 * This function is for gathering basic information about the HW, only.
4755 * Also some structs may be set up here. But most likely you want to have
4756 * that in core_init(), too.
4757 */
4758
Rafał Miłecki24ca39d2011-05-18 02:06:43 +02004759 err = b43_bus_powerup(dev, 0);
Michael Buesche4d6b792007-09-18 15:39:42 -04004760 if (err) {
4761 b43err(wl, "Bus powerup failed\n");
4762 goto out;
4763 }
4764 /* Get the PHY type. */
Rafał Miłecki21d889d2011-05-18 02:06:38 +02004765 if (dev->dev->core_rev >= 5) {
Michael Buesche4d6b792007-09-18 15:39:42 -04004766 u32 tmshigh;
4767
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004768 tmshigh = ssb_read32(dev->sdev, SSB_TMSHIGH);
Michael Buesch96c755a2008-01-06 00:09:46 +01004769 have_2ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY);
4770 have_5ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_5GHZ_PHY);
Michael Buesche4d6b792007-09-18 15:39:42 -04004771 } else
Michael Buesch96c755a2008-01-06 00:09:46 +01004772 B43_WARN_ON(1);
Michael Buesche4d6b792007-09-18 15:39:42 -04004773
Michael Buesch96c755a2008-01-06 00:09:46 +01004774 dev->phy.gmode = have_2ghz_phy;
Larry Fingerfd4973c2009-06-20 12:58:11 -05004775 dev->phy.radio_on = 1;
Michael Buesche4d6b792007-09-18 15:39:42 -04004776 tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
4777 b43_wireless_core_reset(dev, tmp);
4778
4779 err = b43_phy_versioning(dev);
4780 if (err)
Michael Buesch21954c32007-09-27 15:31:40 +02004781 goto err_powerdown;
Michael Buesche4d6b792007-09-18 15:39:42 -04004782 /* Check if this device supports multiband. */
4783 if (!pdev ||
4784 (pdev->device != 0x4312 &&
4785 pdev->device != 0x4319 && pdev->device != 0x4324)) {
4786 /* No multiband support. */
Michael Buesch96c755a2008-01-06 00:09:46 +01004787 have_2ghz_phy = 0;
4788 have_5ghz_phy = 0;
Michael Buesche4d6b792007-09-18 15:39:42 -04004789 switch (dev->phy.type) {
4790 case B43_PHYTYPE_A:
Michael Buesch96c755a2008-01-06 00:09:46 +01004791 have_5ghz_phy = 1;
Michael Buesche4d6b792007-09-18 15:39:42 -04004792 break;
Gábor Stefanik9d86a2d2009-08-14 14:54:46 +02004793 case B43_PHYTYPE_LP: //FIXME not always!
Gábor Stefanik86b28922009-08-16 20:22:41 +02004794#if 0 //FIXME enabling 5GHz causes a NULL pointer dereference
Gábor Stefanik9d86a2d2009-08-14 14:54:46 +02004795 have_5ghz_phy = 1;
Gábor Stefanik86b28922009-08-16 20:22:41 +02004796#endif
Michael Buesche4d6b792007-09-18 15:39:42 -04004797 case B43_PHYTYPE_G:
Michael Buesch96c755a2008-01-06 00:09:46 +01004798 case B43_PHYTYPE_N:
4799 have_2ghz_phy = 1;
Michael Buesche4d6b792007-09-18 15:39:42 -04004800 break;
4801 default:
4802 B43_WARN_ON(1);
4803 }
4804 }
Michael Buesch96c755a2008-01-06 00:09:46 +01004805 if (dev->phy.type == B43_PHYTYPE_A) {
4806 /* FIXME */
4807 b43err(wl, "IEEE 802.11a devices are unsupported\n");
4808 err = -EOPNOTSUPP;
4809 goto err_powerdown;
4810 }
Michael Buesch2e35af12008-04-27 19:06:18 +02004811 if (1 /* disable A-PHY */) {
4812 /* FIXME: For now we disable the A-PHY on multi-PHY devices. */
Gábor Stefanik9d86a2d2009-08-14 14:54:46 +02004813 if (dev->phy.type != B43_PHYTYPE_N &&
4814 dev->phy.type != B43_PHYTYPE_LP) {
Michael Buesch2e35af12008-04-27 19:06:18 +02004815 have_2ghz_phy = 1;
4816 have_5ghz_phy = 0;
4817 }
4818 }
4819
Michael Bueschfb111372008-09-02 13:00:34 +02004820 err = b43_phy_allocate(dev);
4821 if (err)
4822 goto err_powerdown;
4823
Michael Buesch96c755a2008-01-06 00:09:46 +01004824 dev->phy.gmode = have_2ghz_phy;
Michael Buesche4d6b792007-09-18 15:39:42 -04004825 tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
4826 b43_wireless_core_reset(dev, tmp);
4827
4828 err = b43_validate_chipaccess(dev);
4829 if (err)
Michael Bueschfb111372008-09-02 13:00:34 +02004830 goto err_phy_free;
Michael Bueschbb1eeff2008-02-09 12:08:58 +01004831 err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy);
Michael Buesche4d6b792007-09-18 15:39:42 -04004832 if (err)
Michael Bueschfb111372008-09-02 13:00:34 +02004833 goto err_phy_free;
Michael Buesche4d6b792007-09-18 15:39:42 -04004834
4835 /* Now set some default "current_dev" */
4836 if (!wl->current_dev)
4837 wl->current_dev = dev;
4838 INIT_WORK(&dev->restart_work, b43_chip_reset);
4839
Michael Bueschcb24f572008-09-03 12:12:20 +02004840 dev->phy.ops->switch_analog(dev, 0);
Rafał Miłecki24ca39d2011-05-18 02:06:43 +02004841 b43_device_disable(dev, 0);
4842 b43_bus_may_powerdown(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004843
4844out:
4845 return err;
4846
Michael Bueschfb111372008-09-02 13:00:34 +02004847err_phy_free:
4848 b43_phy_free(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004849err_powerdown:
Rafał Miłecki24ca39d2011-05-18 02:06:43 +02004850 b43_bus_may_powerdown(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004851 return err;
4852}
4853
Rafał Miłecki482f0532011-05-18 02:06:36 +02004854static void b43_one_core_detach(struct b43_bus_dev *dev)
Michael Buesche4d6b792007-09-18 15:39:42 -04004855{
4856 struct b43_wldev *wldev;
4857 struct b43_wl *wl;
4858
Michael Buesch3bf0a322008-05-22 16:32:16 +02004859 /* Do not cancel ieee80211-workqueue based work here.
4860 * See comment in b43_remove(). */
4861
Rafał Miłecki482f0532011-05-18 02:06:36 +02004862 wldev = ssb_get_drvdata(dev->sdev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004863 wl = wldev->wl;
Michael Buesche4d6b792007-09-18 15:39:42 -04004864 b43_debugfs_remove_device(wldev);
4865 b43_wireless_core_detach(wldev);
4866 list_del(&wldev->list);
4867 wl->nr_devs--;
Rafał Miłecki482f0532011-05-18 02:06:36 +02004868 ssb_set_drvdata(dev->sdev, NULL);
Michael Buesche4d6b792007-09-18 15:39:42 -04004869 kfree(wldev);
4870}
4871
Rafał Miłecki482f0532011-05-18 02:06:36 +02004872static int b43_one_core_attach(struct b43_bus_dev *dev, struct b43_wl *wl)
Michael Buesche4d6b792007-09-18 15:39:42 -04004873{
4874 struct b43_wldev *wldev;
Michael Buesche4d6b792007-09-18 15:39:42 -04004875 int err = -ENOMEM;
4876
Michael Buesche4d6b792007-09-18 15:39:42 -04004877 wldev = kzalloc(sizeof(*wldev), GFP_KERNEL);
4878 if (!wldev)
4879 goto out;
4880
Linus Torvalds9e3bd912010-02-26 10:34:27 -08004881 wldev->use_pio = b43_modparam_pio;
Rafał Miłecki482f0532011-05-18 02:06:36 +02004882 wldev->dev = dev;
4883 wldev->sdev = dev->sdev; /* TODO: Remove when not needed */
Michael Buesche4d6b792007-09-18 15:39:42 -04004884 wldev->wl = wl;
4885 b43_set_status(wldev, B43_STAT_UNINIT);
4886 wldev->bad_frames_preempt = modparam_bad_frames_preempt;
Michael Buesche4d6b792007-09-18 15:39:42 -04004887 INIT_LIST_HEAD(&wldev->list);
4888
4889 err = b43_wireless_core_attach(wldev);
4890 if (err)
4891 goto err_kfree_wldev;
4892
4893 list_add(&wldev->list, &wl->devlist);
4894 wl->nr_devs++;
Rafał Miłecki482f0532011-05-18 02:06:36 +02004895 ssb_set_drvdata(dev->sdev, wldev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004896 b43_debugfs_add_device(wldev);
4897
4898 out:
4899 return err;
4900
4901 err_kfree_wldev:
4902 kfree(wldev);
4903 return err;
4904}
4905
Michael Buesch9fc38452008-04-19 16:53:00 +02004906#define IS_PDEV(pdev, _vendor, _device, _subvendor, _subdevice) ( \
4907 (pdev->vendor == PCI_VENDOR_ID_##_vendor) && \
4908 (pdev->device == _device) && \
4909 (pdev->subsystem_vendor == PCI_VENDOR_ID_##_subvendor) && \
4910 (pdev->subsystem_device == _subdevice) )
4911
Michael Buesche4d6b792007-09-18 15:39:42 -04004912static void b43_sprom_fixup(struct ssb_bus *bus)
4913{
Michael Buesch1855ba72008-04-18 20:51:41 +02004914 struct pci_dev *pdev;
4915
Michael Buesche4d6b792007-09-18 15:39:42 -04004916 /* boardflags workarounds */
4917 if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL &&
4918 bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74)
Larry Finger95de2842007-11-09 16:57:18 -06004919 bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST;
Michael Buesche4d6b792007-09-18 15:39:42 -04004920 if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE &&
4921 bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40)
Larry Finger95de2842007-11-09 16:57:18 -06004922 bus->sprom.boardflags_lo |= B43_BFL_PACTRL;
Michael Buesch1855ba72008-04-18 20:51:41 +02004923 if (bus->bustype == SSB_BUSTYPE_PCI) {
4924 pdev = bus->host_pci;
Michael Buesch9fc38452008-04-19 16:53:00 +02004925 if (IS_PDEV(pdev, BROADCOM, 0x4318, ASUSTEK, 0x100F) ||
Larry Finger430cd472008-08-14 18:57:11 -05004926 IS_PDEV(pdev, BROADCOM, 0x4320, DELL, 0x0003) ||
Larry Finger570bdfb2008-09-26 08:23:00 -05004927 IS_PDEV(pdev, BROADCOM, 0x4320, HP, 0x12f8) ||
Michael Buesch9fc38452008-04-19 16:53:00 +02004928 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0015) ||
Larry Fingera58d4522008-08-10 10:19:33 -05004929 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0014) ||
Larry Finger3bb91bf2008-09-19 14:47:38 -05004930 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0013) ||
4931 IS_PDEV(pdev, BROADCOM, 0x4320, MOTOROLA, 0x7010))
Michael Buesch1855ba72008-04-18 20:51:41 +02004932 bus->sprom.boardflags_lo &= ~B43_BFL_BTCOEXIST;
4933 }
Michael Buesche4d6b792007-09-18 15:39:42 -04004934}
4935
Rafał Miłecki482f0532011-05-18 02:06:36 +02004936static void b43_wireless_exit(struct b43_bus_dev *dev, struct b43_wl *wl)
Michael Buesche4d6b792007-09-18 15:39:42 -04004937{
4938 struct ieee80211_hw *hw = wl->hw;
4939
Rafał Miłecki482f0532011-05-18 02:06:36 +02004940 ssb_set_devtypedata(dev->sdev, NULL);
Michael Buesche4d6b792007-09-18 15:39:42 -04004941 ieee80211_free_hw(hw);
4942}
4943
Rafał Miłecki0355a342011-05-17 14:00:01 +02004944static struct b43_wl *b43_wireless_init(struct ssb_device *dev)
Michael Buesche4d6b792007-09-18 15:39:42 -04004945{
4946 struct ssb_sprom *sprom = &dev->bus->sprom;
4947 struct ieee80211_hw *hw;
4948 struct b43_wl *wl;
Michael Buesche4d6b792007-09-18 15:39:42 -04004949
4950 hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops);
4951 if (!hw) {
4952 b43err(NULL, "Could not allocate ieee80211 device\n");
Rafał Miłecki0355a342011-05-17 14:00:01 +02004953 return ERR_PTR(-ENOMEM);
Michael Buesche4d6b792007-09-18 15:39:42 -04004954 }
Michael Buesch403a3a12009-06-08 21:04:57 +02004955 wl = hw_to_b43_wl(hw);
Michael Buesche4d6b792007-09-18 15:39:42 -04004956
4957 /* fill hw info */
Johannes Berg605a0bd2008-07-15 10:10:01 +02004958 hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
John W. Linvillef5c044e2010-04-30 15:37:00 -04004959 IEEE80211_HW_SIGNAL_DBM;
Bruno Randolf566bfe52008-05-08 19:15:40 +02004960
Luis R. Rodriguezf59ac042008-08-29 16:26:43 -07004961 hw->wiphy->interface_modes =
4962 BIT(NL80211_IFTYPE_AP) |
4963 BIT(NL80211_IFTYPE_MESH_POINT) |
4964 BIT(NL80211_IFTYPE_STATION) |
4965 BIT(NL80211_IFTYPE_WDS) |
4966 BIT(NL80211_IFTYPE_ADHOC);
4967
Michael Buesch403a3a12009-06-08 21:04:57 +02004968 hw->queues = modparam_qos ? 4 : 1;
4969 wl->mac80211_initially_registered_queues = hw->queues;
Johannes Berge6a98542008-10-21 12:40:02 +02004970 hw->max_rates = 2;
Michael Buesche4d6b792007-09-18 15:39:42 -04004971 SET_IEEE80211_DEV(hw, dev->dev);
Larry Finger95de2842007-11-09 16:57:18 -06004972 if (is_valid_ether_addr(sprom->et1mac))
4973 SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
Michael Buesche4d6b792007-09-18 15:39:42 -04004974 else
Larry Finger95de2842007-11-09 16:57:18 -06004975 SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac);
Michael Buesche4d6b792007-09-18 15:39:42 -04004976
Michael Buesch403a3a12009-06-08 21:04:57 +02004977 /* Initialize struct b43_wl */
Michael Buesche4d6b792007-09-18 15:39:42 -04004978 wl->hw = hw;
Michael Buesche4d6b792007-09-18 15:39:42 -04004979 mutex_init(&wl->mutex);
Michael Buesch36dbd952009-09-04 22:51:29 +02004980 spin_lock_init(&wl->hardirq_lock);
Michael Buesche4d6b792007-09-18 15:39:42 -04004981 INIT_LIST_HEAD(&wl->devlist);
Michael Buescha82d9922008-04-04 21:40:06 +02004982 INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work);
Michael Buesch18c8ade2008-08-28 19:33:40 +02004983 INIT_WORK(&wl->txpower_adjust_work, b43_phy_txpower_adjust_work);
Michael Bueschf5d40ee2009-09-04 22:53:18 +02004984 INIT_WORK(&wl->tx_work, b43_tx_work);
4985 skb_queue_head_init(&wl->tx_queue);
Michael Buesche4d6b792007-09-18 15:39:42 -04004986
Michael Buesch060210f2009-01-25 15:49:59 +01004987 b43info(wl, "Broadcom %04X WLAN found (core revision %u)\n",
4988 dev->bus->chip_id, dev->id.revision);
Rafał Miłecki0355a342011-05-17 14:00:01 +02004989 return wl;
Michael Buesche4d6b792007-09-18 15:39:42 -04004990}
4991
Rafał Miłeckiaa634182011-05-18 02:06:35 +02004992static
4993int b43_ssb_probe(struct ssb_device *sdev, const struct ssb_device_id *id)
Michael Buesche4d6b792007-09-18 15:39:42 -04004994{
Rafał Miłecki482f0532011-05-18 02:06:36 +02004995 struct b43_bus_dev *dev;
Michael Buesche4d6b792007-09-18 15:39:42 -04004996 struct b43_wl *wl;
4997 int err;
4998 int first = 0;
4999
Rafał Miłecki482f0532011-05-18 02:06:36 +02005000 dev = b43_bus_dev_ssb_init(sdev);
5001
Rafał Miłeckiaa634182011-05-18 02:06:35 +02005002 wl = ssb_get_devtypedata(sdev);
Michael Buesche4d6b792007-09-18 15:39:42 -04005003 if (!wl) {
5004 /* Probing the first core. Must setup common struct b43_wl */
5005 first = 1;
Rafał Miłeckiaa634182011-05-18 02:06:35 +02005006 b43_sprom_fixup(sdev->bus);
5007 wl = b43_wireless_init(sdev);
Rafał Miłecki0355a342011-05-17 14:00:01 +02005008 if (IS_ERR(wl)) {
5009 err = PTR_ERR(wl);
Michael Buesche4d6b792007-09-18 15:39:42 -04005010 goto out;
Rafał Miłecki0355a342011-05-17 14:00:01 +02005011 }
Rafał Miłeckiaa634182011-05-18 02:06:35 +02005012 ssb_set_devtypedata(sdev, wl);
5013 B43_WARN_ON(ssb_get_devtypedata(sdev) != wl);
Michael Buesche4d6b792007-09-18 15:39:42 -04005014 }
Rafał Miłecki482f0532011-05-18 02:06:36 +02005015 err = b43_one_core_attach(dev, wl);
Michael Buesche4d6b792007-09-18 15:39:42 -04005016 if (err)
5017 goto err_wireless_exit;
5018
5019 if (first) {
5020 err = ieee80211_register_hw(wl->hw);
5021 if (err)
5022 goto err_one_core_detach;
Michael Buescha78b3bb2009-09-11 21:44:05 +02005023 b43_leds_register(wl->current_dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04005024 }
5025
5026 out:
5027 return err;
5028
5029 err_one_core_detach:
Rafał Miłecki482f0532011-05-18 02:06:36 +02005030 b43_one_core_detach(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04005031 err_wireless_exit:
5032 if (first)
Rafał Miłecki482f0532011-05-18 02:06:36 +02005033 b43_wireless_exit(dev, wl);
Michael Buesche4d6b792007-09-18 15:39:42 -04005034 return err;
5035}
5036
Rafał Miłeckiaa634182011-05-18 02:06:35 +02005037static void b43_ssb_remove(struct ssb_device *sdev)
Michael Buesche4d6b792007-09-18 15:39:42 -04005038{
Rafał Miłeckiaa634182011-05-18 02:06:35 +02005039 struct b43_wl *wl = ssb_get_devtypedata(sdev);
5040 struct b43_wldev *wldev = ssb_get_drvdata(sdev);
Michael Buesche4d6b792007-09-18 15:39:42 -04005041
Michael Buesch3bf0a322008-05-22 16:32:16 +02005042 /* We must cancel any work here before unregistering from ieee80211,
5043 * as the ieee80211 unreg will destroy the workqueue. */
5044 cancel_work_sync(&wldev->restart_work);
5045
Michael Buesche4d6b792007-09-18 15:39:42 -04005046 B43_WARN_ON(!wl);
Michael Buesch403a3a12009-06-08 21:04:57 +02005047 if (wl->current_dev == wldev) {
5048 /* Restore the queues count before unregistering, because firmware detect
5049 * might have modified it. Restoring is important, so the networking
5050 * stack can properly free resources. */
5051 wl->hw->queues = wl->mac80211_initially_registered_queues;
Albert Herranz82905ac2009-09-16 00:26:19 +02005052 b43_leds_stop(wldev);
Michael Buesche4d6b792007-09-18 15:39:42 -04005053 ieee80211_unregister_hw(wl->hw);
Michael Buesch403a3a12009-06-08 21:04:57 +02005054 }
Michael Buesche4d6b792007-09-18 15:39:42 -04005055
Rafał Miłecki482f0532011-05-18 02:06:36 +02005056 b43_one_core_detach(wldev->dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04005057
5058 if (list_empty(&wl->devlist)) {
Michael Buesch727c9882009-10-01 15:54:32 +02005059 b43_leds_unregister(wl);
Michael Buesche4d6b792007-09-18 15:39:42 -04005060 /* Last core on the chip unregistered.
5061 * We can destroy common struct b43_wl.
5062 */
Rafał Miłecki482f0532011-05-18 02:06:36 +02005063 b43_wireless_exit(wldev->dev, wl);
Michael Buesche4d6b792007-09-18 15:39:42 -04005064 }
5065}
5066
5067/* Perform a hardware reset. This can be called from any context. */
5068void b43_controller_restart(struct b43_wldev *dev, const char *reason)
5069{
5070 /* Must avoid requeueing, if we are in shutdown. */
5071 if (b43_status(dev) < B43_STAT_INITIALIZED)
5072 return;
5073 b43info(dev->wl, "Controller RESET (%s) ...\n", reason);
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -04005074 ieee80211_queue_work(dev->wl->hw, &dev->restart_work);
Michael Buesche4d6b792007-09-18 15:39:42 -04005075}
5076
Michael Buesche4d6b792007-09-18 15:39:42 -04005077static struct ssb_driver b43_ssb_driver = {
5078 .name = KBUILD_MODNAME,
5079 .id_table = b43_ssb_tbl,
Rafał Miłecki5ee9c6a2011-05-09 00:21:18 +02005080 .probe = b43_ssb_probe,
5081 .remove = b43_ssb_remove,
Michael Buesche4d6b792007-09-18 15:39:42 -04005082};
5083
Michael Buesch26bc7832008-02-09 00:18:35 +01005084static void b43_print_driverinfo(void)
5085{
5086 const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "",
Albert Herranz3dbba8e2009-09-10 19:34:49 +02005087 *feat_leds = "", *feat_sdio = "";
Michael Buesch26bc7832008-02-09 00:18:35 +01005088
5089#ifdef CONFIG_B43_PCI_AUTOSELECT
5090 feat_pci = "P";
5091#endif
5092#ifdef CONFIG_B43_PCMCIA
5093 feat_pcmcia = "M";
5094#endif
Rafał Miłecki692d2c02010-12-07 21:56:00 +01005095#ifdef CONFIG_B43_PHY_N
Michael Buesch26bc7832008-02-09 00:18:35 +01005096 feat_nphy = "N";
5097#endif
5098#ifdef CONFIG_B43_LEDS
5099 feat_leds = "L";
5100#endif
Albert Herranz3dbba8e2009-09-10 19:34:49 +02005101#ifdef CONFIG_B43_SDIO
5102 feat_sdio = "S";
5103#endif
Michael Buesch26bc7832008-02-09 00:18:35 +01005104 printk(KERN_INFO "Broadcom 43xx driver loaded "
Albert Herranz3dbba8e2009-09-10 19:34:49 +02005105 "[ Features: %s%s%s%s%s, Firmware-ID: "
Michael Buesch26bc7832008-02-09 00:18:35 +01005106 B43_SUPPORTED_FIRMWARE_ID " ]\n",
5107 feat_pci, feat_pcmcia, feat_nphy,
Albert Herranz3dbba8e2009-09-10 19:34:49 +02005108 feat_leds, feat_sdio);
Michael Buesch26bc7832008-02-09 00:18:35 +01005109}
5110
Michael Buesche4d6b792007-09-18 15:39:42 -04005111static int __init b43_init(void)
5112{
5113 int err;
5114
5115 b43_debugfs_init();
5116 err = b43_pcmcia_init();
5117 if (err)
5118 goto err_dfs_exit;
Albert Herranz3dbba8e2009-09-10 19:34:49 +02005119 err = b43_sdio_init();
Michael Buesche4d6b792007-09-18 15:39:42 -04005120 if (err)
5121 goto err_pcmcia_exit;
Albert Herranz3dbba8e2009-09-10 19:34:49 +02005122 err = ssb_driver_register(&b43_ssb_driver);
5123 if (err)
5124 goto err_sdio_exit;
Michael Buesch26bc7832008-02-09 00:18:35 +01005125 b43_print_driverinfo();
Michael Buesche4d6b792007-09-18 15:39:42 -04005126
5127 return err;
5128
Albert Herranz3dbba8e2009-09-10 19:34:49 +02005129err_sdio_exit:
5130 b43_sdio_exit();
Michael Buesche4d6b792007-09-18 15:39:42 -04005131err_pcmcia_exit:
5132 b43_pcmcia_exit();
5133err_dfs_exit:
5134 b43_debugfs_exit();
5135 return err;
5136}
5137
5138static void __exit b43_exit(void)
5139{
5140 ssb_driver_unregister(&b43_ssb_driver);
Albert Herranz3dbba8e2009-09-10 19:34:49 +02005141 b43_sdio_exit();
Michael Buesche4d6b792007-09-18 15:39:42 -04005142 b43_pcmcia_exit();
5143 b43_debugfs_exit();
5144}
5145
5146module_init(b43_init)
5147module_exit(b43_exit)