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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{
1149 u32 tmslow;
Michael Buesche4d6b792007-09-18 15:39:42 -04001150
1151 flags |= B43_TMSLOW_PHYCLKEN;
1152 flags |= B43_TMSLOW_PHYRESET;
Rafał Miłecki42ab1352010-12-09 20:56:01 +01001153 if (dev->phy.type == B43_PHYTYPE_N)
1154 flags |= B43_TMSLOW_PHY_BANDWIDTH_20MHZ; /* Make 20 MHz def */
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02001155 ssb_device_enable(dev->sdev, flags);
Michael Buesche4d6b792007-09-18 15:39:42 -04001156 msleep(2); /* Wait for the PLL to turn on. */
1157
1158 /* Now take the PHY out of Reset again */
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02001159 tmslow = ssb_read32(dev->sdev, SSB_TMSLOW);
Michael Buesche4d6b792007-09-18 15:39:42 -04001160 tmslow |= SSB_TMSLOW_FGC;
1161 tmslow &= ~B43_TMSLOW_PHYRESET;
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02001162 ssb_write32(dev->sdev, SSB_TMSLOW, tmslow);
1163 ssb_read32(dev->sdev, SSB_TMSLOW); /* flush */
Michael Buesche4d6b792007-09-18 15:39:42 -04001164 msleep(1);
1165 tmslow &= ~SSB_TMSLOW_FGC;
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02001166 ssb_write32(dev->sdev, SSB_TMSLOW, tmslow);
1167 ssb_read32(dev->sdev, SSB_TMSLOW); /* flush */
Michael Buesche4d6b792007-09-18 15:39:42 -04001168 msleep(1);
Rafał Miłecki14952982011-05-17 18:57:28 +02001169}
1170
1171void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags)
1172{
1173 u32 macctl;
1174
1175 b43_ssb_wireless_core_reset(dev, flags);
Michael Buesche4d6b792007-09-18 15:39:42 -04001176
Michael Bueschfb111372008-09-02 13:00:34 +02001177 /* Turn Analog ON, but only if we already know the PHY-type.
1178 * This protects against very early setup where we don't know the
1179 * PHY-type, yet. wireless_core_reset will be called once again later,
1180 * when we know the PHY-type. */
1181 if (dev->phy.ops)
Michael Bueschcb24f572008-09-03 12:12:20 +02001182 dev->phy.ops->switch_analog(dev, 1);
Michael Buesche4d6b792007-09-18 15:39:42 -04001183
1184 macctl = b43_read32(dev, B43_MMIO_MACCTL);
1185 macctl &= ~B43_MACCTL_GMODE;
1186 if (flags & B43_TMSLOW_GMODE)
1187 macctl |= B43_MACCTL_GMODE;
1188 macctl |= B43_MACCTL_IHR_ENABLED;
1189 b43_write32(dev, B43_MMIO_MACCTL, macctl);
1190}
1191
1192static void handle_irq_transmit_status(struct b43_wldev *dev)
1193{
1194 u32 v0, v1;
1195 u16 tmp;
1196 struct b43_txstatus stat;
1197
1198 while (1) {
1199 v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1200 if (!(v0 & 0x00000001))
1201 break;
1202 v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1203
1204 stat.cookie = (v0 >> 16);
1205 stat.seq = (v1 & 0x0000FFFF);
1206 stat.phy_stat = ((v1 & 0x00FF0000) >> 16);
1207 tmp = (v0 & 0x0000FFFF);
1208 stat.frame_count = ((tmp & 0xF000) >> 12);
1209 stat.rts_count = ((tmp & 0x0F00) >> 8);
1210 stat.supp_reason = ((tmp & 0x001C) >> 2);
1211 stat.pm_indicated = !!(tmp & 0x0080);
1212 stat.intermediate = !!(tmp & 0x0040);
1213 stat.for_ampdu = !!(tmp & 0x0020);
1214 stat.acked = !!(tmp & 0x0002);
1215
1216 b43_handle_txstatus(dev, &stat);
1217 }
1218}
1219
1220static void drain_txstatus_queue(struct b43_wldev *dev)
1221{
1222 u32 dummy;
1223
Rafał Miłecki21d889d2011-05-18 02:06:38 +02001224 if (dev->dev->core_rev < 5)
Michael Buesche4d6b792007-09-18 15:39:42 -04001225 return;
1226 /* Read all entries from the microcode TXstatus FIFO
1227 * and throw them away.
1228 */
1229 while (1) {
1230 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0);
1231 if (!(dummy & 0x00000001))
1232 break;
1233 dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1);
1234 }
1235}
1236
1237static u32 b43_jssi_read(struct b43_wldev *dev)
1238{
1239 u32 val = 0;
1240
1241 val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A);
1242 val <<= 16;
1243 val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088);
1244
1245 return val;
1246}
1247
1248static void b43_jssi_write(struct b43_wldev *dev, u32 jssi)
1249{
1250 b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF));
1251 b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16);
1252}
1253
1254static void b43_generate_noise_sample(struct b43_wldev *dev)
1255{
1256 b43_jssi_write(dev, 0x7F7F7F7F);
Michael Bueschaa6c7ae2007-12-26 16:26:36 +01001257 b43_write32(dev, B43_MMIO_MACCMD,
1258 b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE);
Michael Buesche4d6b792007-09-18 15:39:42 -04001259}
1260
1261static void b43_calculate_link_quality(struct b43_wldev *dev)
1262{
1263 /* Top half of Link Quality calculation. */
1264
Michael Bueschef1a6282008-08-27 18:53:02 +02001265 if (dev->phy.type != B43_PHYTYPE_G)
1266 return;
Michael Buesche4d6b792007-09-18 15:39:42 -04001267 if (dev->noisecalc.calculation_running)
1268 return;
Michael Buesche4d6b792007-09-18 15:39:42 -04001269 dev->noisecalc.calculation_running = 1;
1270 dev->noisecalc.nr_samples = 0;
1271
1272 b43_generate_noise_sample(dev);
1273}
1274
1275static void handle_irq_noise(struct b43_wldev *dev)
1276{
Michael Bueschef1a6282008-08-27 18:53:02 +02001277 struct b43_phy_g *phy = dev->phy.g;
Michael Buesche4d6b792007-09-18 15:39:42 -04001278 u16 tmp;
1279 u8 noise[4];
1280 u8 i, j;
1281 s32 average;
1282
1283 /* Bottom half of Link Quality calculation. */
1284
Michael Bueschef1a6282008-08-27 18:53:02 +02001285 if (dev->phy.type != B43_PHYTYPE_G)
1286 return;
1287
Michael Buesch98a3b2f2008-06-12 12:36:29 +02001288 /* Possible race condition: It might be possible that the user
1289 * changed to a different channel in the meantime since we
1290 * started the calculation. We ignore that fact, since it's
1291 * not really that much of a problem. The background noise is
1292 * an estimation only anyway. Slightly wrong results will get damped
1293 * by the averaging of the 8 sample rounds. Additionally the
1294 * value is shortlived. So it will be replaced by the next noise
1295 * calculation round soon. */
1296
Michael Buesche4d6b792007-09-18 15:39:42 -04001297 B43_WARN_ON(!dev->noisecalc.calculation_running);
Michael Buesch1a094042007-09-20 11:13:40 -07001298 *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev));
Michael Buesche4d6b792007-09-18 15:39:42 -04001299 if (noise[0] == 0x7F || noise[1] == 0x7F ||
1300 noise[2] == 0x7F || noise[3] == 0x7F)
1301 goto generate_new;
1302
1303 /* Get the noise samples. */
1304 B43_WARN_ON(dev->noisecalc.nr_samples >= 8);
1305 i = dev->noisecalc.nr_samples;
Harvey Harrisoncdbf0842008-05-02 13:47:48 -07001306 noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1307 noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1308 noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
1309 noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
Michael Buesche4d6b792007-09-18 15:39:42 -04001310 dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]];
1311 dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]];
1312 dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]];
1313 dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]];
1314 dev->noisecalc.nr_samples++;
1315 if (dev->noisecalc.nr_samples == 8) {
1316 /* Calculate the Link Quality by the noise samples. */
1317 average = 0;
1318 for (i = 0; i < 8; i++) {
1319 for (j = 0; j < 4; j++)
1320 average += dev->noisecalc.samples[i][j];
1321 }
1322 average /= (8 * 4);
1323 average *= 125;
1324 average += 64;
1325 average /= 128;
1326 tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C);
1327 tmp = (tmp / 128) & 0x1F;
1328 if (tmp >= 8)
1329 average += 2;
1330 else
1331 average -= 25;
1332 if (tmp == 8)
1333 average -= 72;
1334 else
1335 average -= 48;
1336
1337 dev->stats.link_noise = average;
Michael Buesche4d6b792007-09-18 15:39:42 -04001338 dev->noisecalc.calculation_running = 0;
1339 return;
1340 }
Michael Buesch98a3b2f2008-06-12 12:36:29 +02001341generate_new:
Michael Buesche4d6b792007-09-18 15:39:42 -04001342 b43_generate_noise_sample(dev);
1343}
1344
1345static void handle_irq_tbtt_indication(struct b43_wldev *dev)
1346{
Johannes Berg05c914f2008-09-11 00:01:58 +02001347 if (b43_is_mode(dev->wl, NL80211_IFTYPE_AP)) {
Michael Buesche4d6b792007-09-18 15:39:42 -04001348 ///TODO: PS TBTT
1349 } else {
1350 if (1 /*FIXME: the last PSpoll frame was sent successfully */ )
1351 b43_power_saving_ctl_bits(dev, 0);
1352 }
Johannes Berg05c914f2008-09-11 00:01:58 +02001353 if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC))
Michael Bueschaa6c7ae2007-12-26 16:26:36 +01001354 dev->dfq_valid = 1;
Michael Buesche4d6b792007-09-18 15:39:42 -04001355}
1356
1357static void handle_irq_atim_end(struct b43_wldev *dev)
1358{
Michael Bueschaa6c7ae2007-12-26 16:26:36 +01001359 if (dev->dfq_valid) {
1360 b43_write32(dev, B43_MMIO_MACCMD,
1361 b43_read32(dev, B43_MMIO_MACCMD)
1362 | B43_MACCMD_DFQ_VALID);
1363 dev->dfq_valid = 0;
1364 }
Michael Buesche4d6b792007-09-18 15:39:42 -04001365}
1366
1367static void handle_irq_pmq(struct b43_wldev *dev)
1368{
1369 u32 tmp;
1370
1371 //TODO: AP mode.
1372
1373 while (1) {
1374 tmp = b43_read32(dev, B43_MMIO_PS_STATUS);
1375 if (!(tmp & 0x00000008))
1376 break;
1377 }
1378 /* 16bit write is odd, but correct. */
1379 b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002);
1380}
1381
1382static void b43_write_template_common(struct b43_wldev *dev,
John Daiker99da1852009-02-24 02:16:42 -08001383 const u8 *data, u16 size,
Michael Buesche4d6b792007-09-18 15:39:42 -04001384 u16 ram_offset,
1385 u16 shm_size_offset, u8 rate)
1386{
1387 u32 i, tmp;
1388 struct b43_plcp_hdr4 plcp;
1389
1390 plcp.data = 0;
1391 b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
1392 b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data));
1393 ram_offset += sizeof(u32);
1394 /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet.
1395 * So leave the first two bytes of the next write blank.
1396 */
1397 tmp = (u32) (data[0]) << 16;
1398 tmp |= (u32) (data[1]) << 24;
1399 b43_ram_write(dev, ram_offset, tmp);
1400 ram_offset += sizeof(u32);
1401 for (i = 2; i < size; i += sizeof(u32)) {
1402 tmp = (u32) (data[i + 0]);
1403 if (i + 1 < size)
1404 tmp |= (u32) (data[i + 1]) << 8;
1405 if (i + 2 < size)
1406 tmp |= (u32) (data[i + 2]) << 16;
1407 if (i + 3 < size)
1408 tmp |= (u32) (data[i + 3]) << 24;
1409 b43_ram_write(dev, ram_offset + i - 2, tmp);
1410 }
1411 b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset,
1412 size + sizeof(struct b43_plcp_hdr6));
1413}
1414
Michael Buesch5042c502008-04-05 15:05:00 +02001415/* Check if the use of the antenna that ieee80211 told us to
1416 * use is possible. This will fall back to DEFAULT.
1417 * "antenna_nr" is the antenna identifier we got from ieee80211. */
1418u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev,
1419 u8 antenna_nr)
1420{
1421 u8 antenna_mask;
1422
1423 if (antenna_nr == 0) {
1424 /* Zero means "use default antenna". That's always OK. */
1425 return 0;
1426 }
1427
1428 /* Get the mask of available antennas. */
1429 if (dev->phy.gmode)
Rafał Miłecki05814832011-05-18 02:06:39 +02001430 antenna_mask = dev->dev->bus_sprom->ant_available_bg;
Michael Buesch5042c502008-04-05 15:05:00 +02001431 else
Rafał Miłecki05814832011-05-18 02:06:39 +02001432 antenna_mask = dev->dev->bus_sprom->ant_available_a;
Michael Buesch5042c502008-04-05 15:05:00 +02001433
1434 if (!(antenna_mask & (1 << (antenna_nr - 1)))) {
1435 /* This antenna is not available. Fall back to default. */
1436 return 0;
1437 }
1438
1439 return antenna_nr;
1440}
1441
Michael Buesch5042c502008-04-05 15:05:00 +02001442/* Convert a b43 antenna number value to the PHY TX control value. */
1443static u16 b43_antenna_to_phyctl(int antenna)
1444{
1445 switch (antenna) {
1446 case B43_ANTENNA0:
1447 return B43_TXH_PHY_ANT0;
1448 case B43_ANTENNA1:
1449 return B43_TXH_PHY_ANT1;
1450 case B43_ANTENNA2:
1451 return B43_TXH_PHY_ANT2;
1452 case B43_ANTENNA3:
1453 return B43_TXH_PHY_ANT3;
Gábor Stefanik64e368b2009-08-27 22:49:49 +02001454 case B43_ANTENNA_AUTO0:
1455 case B43_ANTENNA_AUTO1:
Michael Buesch5042c502008-04-05 15:05:00 +02001456 return B43_TXH_PHY_ANT01AUTO;
1457 }
1458 B43_WARN_ON(1);
1459 return 0;
1460}
1461
Michael Buesche4d6b792007-09-18 15:39:42 -04001462static void b43_write_beacon_template(struct b43_wldev *dev,
1463 u16 ram_offset,
Michael Buesch5042c502008-04-05 15:05:00 +02001464 u16 shm_size_offset)
Michael Buesche4d6b792007-09-18 15:39:42 -04001465{
Michael Buesch47f76ca2007-12-27 22:15:11 +01001466 unsigned int i, len, variable_len;
Michael Buesche66fee62007-12-26 17:47:10 +01001467 const struct ieee80211_mgmt *bcn;
1468 const u8 *ie;
1469 bool tim_found = 0;
Michael Buesch5042c502008-04-05 15:05:00 +02001470 unsigned int rate;
1471 u16 ctl;
1472 int antenna;
Johannes Berge039fa42008-05-15 12:55:29 +02001473 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon);
Michael Buesche4d6b792007-09-18 15:39:42 -04001474
Michael Buesche66fee62007-12-26 17:47:10 +01001475 bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data);
1476 len = min((size_t) dev->wl->current_beacon->len,
Michael Buesche4d6b792007-09-18 15:39:42 -04001477 0x200 - sizeof(struct b43_plcp_hdr6));
Johannes Berge039fa42008-05-15 12:55:29 +02001478 rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value;
Michael Buesche66fee62007-12-26 17:47:10 +01001479
1480 b43_write_template_common(dev, (const u8 *)bcn,
Michael Buesche4d6b792007-09-18 15:39:42 -04001481 len, ram_offset, shm_size_offset, rate);
Michael Buesche66fee62007-12-26 17:47:10 +01001482
Michael Buesch5042c502008-04-05 15:05:00 +02001483 /* Write the PHY TX control parameters. */
Johannes Berg0f4ac382008-10-09 12:18:04 +02001484 antenna = B43_ANTENNA_DEFAULT;
Michael Buesch5042c502008-04-05 15:05:00 +02001485 antenna = b43_antenna_to_phyctl(antenna);
1486 ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL);
1487 /* We can't send beacons with short preamble. Would get PHY errors. */
1488 ctl &= ~B43_TXH_PHY_SHORTPRMBL;
1489 ctl &= ~B43_TXH_PHY_ANT;
1490 ctl &= ~B43_TXH_PHY_ENC;
1491 ctl |= antenna;
1492 if (b43_is_cck_rate(rate))
1493 ctl |= B43_TXH_PHY_ENC_CCK;
1494 else
1495 ctl |= B43_TXH_PHY_ENC_OFDM;
1496 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl);
1497
Michael Buesche66fee62007-12-26 17:47:10 +01001498 /* Find the position of the TIM and the DTIM_period value
1499 * and write them to SHM. */
1500 ie = bcn->u.beacon.variable;
Michael Buesch47f76ca2007-12-27 22:15:11 +01001501 variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
1502 for (i = 0; i < variable_len - 2; ) {
Michael Buesche66fee62007-12-26 17:47:10 +01001503 uint8_t ie_id, ie_len;
1504
1505 ie_id = ie[i];
1506 ie_len = ie[i + 1];
1507 if (ie_id == 5) {
1508 u16 tim_position;
1509 u16 dtim_period;
1510 /* This is the TIM Information Element */
1511
1512 /* Check whether the ie_len is in the beacon data range. */
Michael Buesch47f76ca2007-12-27 22:15:11 +01001513 if (variable_len < ie_len + 2 + i)
Michael Buesche66fee62007-12-26 17:47:10 +01001514 break;
1515 /* A valid TIM is at least 4 bytes long. */
1516 if (ie_len < 4)
1517 break;
1518 tim_found = 1;
1519
1520 tim_position = sizeof(struct b43_plcp_hdr6);
1521 tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable);
1522 tim_position += i;
1523
1524 dtim_period = ie[i + 3];
1525
1526 b43_shm_write16(dev, B43_SHM_SHARED,
1527 B43_SHM_SH_TIMBPOS, tim_position);
1528 b43_shm_write16(dev, B43_SHM_SHARED,
1529 B43_SHM_SH_DTIMPER, dtim_period);
1530 break;
1531 }
1532 i += ie_len + 2;
1533 }
1534 if (!tim_found) {
Johannes Berg04dea132008-05-20 12:10:49 +02001535 /*
1536 * If ucode wants to modify TIM do it behind the beacon, this
1537 * will happen, for example, when doing mesh networking.
1538 */
1539 b43_shm_write16(dev, B43_SHM_SHARED,
1540 B43_SHM_SH_TIMBPOS,
1541 len + sizeof(struct b43_plcp_hdr6));
1542 b43_shm_write16(dev, B43_SHM_SHARED,
1543 B43_SHM_SH_DTIMPER, 0);
1544 }
1545 b43dbg(dev->wl, "Updated beacon template at 0x%x\n", ram_offset);
Michael Buesche4d6b792007-09-18 15:39:42 -04001546}
1547
Michael Buesch6b4bec012008-05-20 12:16:28 +02001548static void b43_upload_beacon0(struct b43_wldev *dev)
1549{
1550 struct b43_wl *wl = dev->wl;
1551
1552 if (wl->beacon0_uploaded)
1553 return;
1554 b43_write_beacon_template(dev, 0x68, 0x18);
Michael Buesch6b4bec012008-05-20 12:16:28 +02001555 wl->beacon0_uploaded = 1;
1556}
1557
1558static void b43_upload_beacon1(struct b43_wldev *dev)
1559{
1560 struct b43_wl *wl = dev->wl;
1561
1562 if (wl->beacon1_uploaded)
1563 return;
1564 b43_write_beacon_template(dev, 0x468, 0x1A);
1565 wl->beacon1_uploaded = 1;
1566}
1567
Michael Bueschc97a4cc2008-04-05 15:02:09 +02001568static void handle_irq_beacon(struct b43_wldev *dev)
1569{
1570 struct b43_wl *wl = dev->wl;
1571 u32 cmd, beacon0_valid, beacon1_valid;
1572
Johannes Berg05c914f2008-09-11 00:01:58 +02001573 if (!b43_is_mode(wl, NL80211_IFTYPE_AP) &&
1574 !b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT))
Michael Bueschc97a4cc2008-04-05 15:02:09 +02001575 return;
1576
1577 /* This is the bottom half of the asynchronous beacon update. */
1578
1579 /* Ignore interrupt in the future. */
Michael Buesch13790722009-04-08 21:26:27 +02001580 dev->irq_mask &= ~B43_IRQ_BEACON;
Michael Bueschc97a4cc2008-04-05 15:02:09 +02001581
1582 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1583 beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID);
1584 beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID);
1585
1586 /* Schedule interrupt manually, if busy. */
1587 if (beacon0_valid && beacon1_valid) {
1588 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON);
Michael Buesch13790722009-04-08 21:26:27 +02001589 dev->irq_mask |= B43_IRQ_BEACON;
Michael Bueschc97a4cc2008-04-05 15:02:09 +02001590 return;
1591 }
1592
Michael Buesch6b4bec012008-05-20 12:16:28 +02001593 if (unlikely(wl->beacon_templates_virgin)) {
1594 /* We never uploaded a beacon before.
1595 * Upload both templates now, but only mark one valid. */
1596 wl->beacon_templates_virgin = 0;
1597 b43_upload_beacon0(dev);
1598 b43_upload_beacon1(dev);
Michael Bueschc97a4cc2008-04-05 15:02:09 +02001599 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1600 cmd |= B43_MACCMD_BEACON0_VALID;
1601 b43_write32(dev, B43_MMIO_MACCMD, cmd);
Michael Buesch6b4bec012008-05-20 12:16:28 +02001602 } else {
1603 if (!beacon0_valid) {
1604 b43_upload_beacon0(dev);
1605 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1606 cmd |= B43_MACCMD_BEACON0_VALID;
1607 b43_write32(dev, B43_MMIO_MACCMD, cmd);
1608 } else if (!beacon1_valid) {
1609 b43_upload_beacon1(dev);
1610 cmd = b43_read32(dev, B43_MMIO_MACCMD);
1611 cmd |= B43_MACCMD_BEACON1_VALID;
1612 b43_write32(dev, B43_MMIO_MACCMD, cmd);
Michael Bueschc97a4cc2008-04-05 15:02:09 +02001613 }
Michael Bueschc97a4cc2008-04-05 15:02:09 +02001614 }
1615}
1616
Michael Buesch36dbd952009-09-04 22:51:29 +02001617static void b43_do_beacon_update_trigger_work(struct b43_wldev *dev)
1618{
1619 u32 old_irq_mask = dev->irq_mask;
1620
1621 /* update beacon right away or defer to irq */
1622 handle_irq_beacon(dev);
1623 if (old_irq_mask != dev->irq_mask) {
1624 /* The handler updated the IRQ mask. */
1625 B43_WARN_ON(!dev->irq_mask);
1626 if (b43_read32(dev, B43_MMIO_GEN_IRQ_MASK)) {
1627 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask);
1628 } else {
1629 /* Device interrupts are currently disabled. That means
1630 * we just ran the hardirq handler and scheduled the
1631 * IRQ thread. The thread will write the IRQ mask when
1632 * it finished, so there's nothing to do here. Writing
1633 * the mask _here_ would incorrectly re-enable IRQs. */
1634 }
1635 }
1636}
1637
Michael Buescha82d9922008-04-04 21:40:06 +02001638static void b43_beacon_update_trigger_work(struct work_struct *work)
1639{
1640 struct b43_wl *wl = container_of(work, struct b43_wl,
1641 beacon_update_trigger);
1642 struct b43_wldev *dev;
1643
1644 mutex_lock(&wl->mutex);
1645 dev = wl->current_dev;
1646 if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) {
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02001647 if (dev->sdev->bus->bustype == SSB_BUSTYPE_SDIO) {
Michael Buesch36dbd952009-09-04 22:51:29 +02001648 /* wl->mutex is enough. */
1649 b43_do_beacon_update_trigger_work(dev);
1650 mmiowb();
1651 } else {
1652 spin_lock_irq(&wl->hardirq_lock);
1653 b43_do_beacon_update_trigger_work(dev);
1654 mmiowb();
1655 spin_unlock_irq(&wl->hardirq_lock);
1656 }
Michael Buescha82d9922008-04-04 21:40:06 +02001657 }
1658 mutex_unlock(&wl->mutex);
1659}
1660
Michael Bueschd4df6f12007-12-26 18:04:14 +01001661/* Asynchronously update the packet templates in template RAM.
Michael Buesch36dbd952009-09-04 22:51:29 +02001662 * Locking: Requires wl->mutex to be locked. */
Johannes Berg9d139c82008-07-09 14:40:37 +02001663static void b43_update_templates(struct b43_wl *wl)
Michael Buesche4d6b792007-09-18 15:39:42 -04001664{
Johannes Berg9d139c82008-07-09 14:40:37 +02001665 struct sk_buff *beacon;
1666
Michael Buesche66fee62007-12-26 17:47:10 +01001667 /* This is the top half of the ansynchronous beacon update.
1668 * The bottom half is the beacon IRQ.
1669 * Beacon update must be asynchronous to avoid sending an
1670 * invalid beacon. This can happen for example, if the firmware
1671 * transmits a beacon while we are updating it. */
Michael Buesche4d6b792007-09-18 15:39:42 -04001672
Johannes Berg9d139c82008-07-09 14:40:37 +02001673 /* We could modify the existing beacon and set the aid bit in
1674 * the TIM field, but that would probably require resizing and
1675 * moving of data within the beacon template.
1676 * Simply request a new beacon and let mac80211 do the hard work. */
1677 beacon = ieee80211_beacon_get(wl->hw, wl->vif);
1678 if (unlikely(!beacon))
1679 return;
1680
Michael Buesche66fee62007-12-26 17:47:10 +01001681 if (wl->current_beacon)
1682 dev_kfree_skb_any(wl->current_beacon);
1683 wl->current_beacon = beacon;
1684 wl->beacon0_uploaded = 0;
1685 wl->beacon1_uploaded = 0;
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -04001686 ieee80211_queue_work(wl->hw, &wl->beacon_update_trigger);
Michael Buesche4d6b792007-09-18 15:39:42 -04001687}
1688
Michael Buesche4d6b792007-09-18 15:39:42 -04001689static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int)
1690{
1691 b43_time_lock(dev);
Rafał Miłecki21d889d2011-05-18 02:06:38 +02001692 if (dev->dev->core_rev >= 3) {
Michael Buescha82d9922008-04-04 21:40:06 +02001693 b43_write32(dev, B43_MMIO_TSF_CFP_REP, (beacon_int << 16));
1694 b43_write32(dev, B43_MMIO_TSF_CFP_START, (beacon_int << 10));
Michael Buesche4d6b792007-09-18 15:39:42 -04001695 } else {
1696 b43_write16(dev, 0x606, (beacon_int >> 6));
1697 b43_write16(dev, 0x610, beacon_int);
1698 }
1699 b43_time_unlock(dev);
Michael Buescha82d9922008-04-04 21:40:06 +02001700 b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int);
Michael Buesche4d6b792007-09-18 15:39:42 -04001701}
1702
Michael Bueschafa83e22008-05-19 23:51:37 +02001703static void b43_handle_firmware_panic(struct b43_wldev *dev)
1704{
1705 u16 reason;
1706
1707 /* Read the register that contains the reason code for the panic. */
1708 reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_FWPANIC_REASON_REG);
1709 b43err(dev->wl, "Whoopsy, firmware panic! Reason: %u\n", reason);
1710
1711 switch (reason) {
1712 default:
1713 b43dbg(dev->wl, "The panic reason is unknown.\n");
1714 /* fallthrough */
1715 case B43_FWPANIC_DIE:
1716 /* Do not restart the controller or firmware.
1717 * The device is nonfunctional from now on.
1718 * Restarting would result in this panic to trigger again,
1719 * so we avoid that recursion. */
1720 break;
1721 case B43_FWPANIC_RESTART:
1722 b43_controller_restart(dev, "Microcode panic");
1723 break;
1724 }
1725}
1726
Michael Buesche4d6b792007-09-18 15:39:42 -04001727static void handle_irq_ucode_debug(struct b43_wldev *dev)
1728{
Michael Buesche48b0ee2008-05-17 22:44:35 +02001729 unsigned int i, cnt;
Michael Buesch53c06852008-05-20 00:24:36 +02001730 u16 reason, marker_id, marker_line;
Michael Buesche48b0ee2008-05-17 22:44:35 +02001731 __le16 *buf;
1732
1733 /* The proprietary firmware doesn't have this IRQ. */
1734 if (!dev->fw.opensource)
1735 return;
1736
Michael Bueschafa83e22008-05-19 23:51:37 +02001737 /* Read the register that contains the reason code for this IRQ. */
1738 reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_DEBUGIRQ_REASON_REG);
1739
Michael Buesche48b0ee2008-05-17 22:44:35 +02001740 switch (reason) {
1741 case B43_DEBUGIRQ_PANIC:
Michael Bueschafa83e22008-05-19 23:51:37 +02001742 b43_handle_firmware_panic(dev);
Michael Buesche48b0ee2008-05-17 22:44:35 +02001743 break;
1744 case B43_DEBUGIRQ_DUMP_SHM:
1745 if (!B43_DEBUG)
1746 break; /* Only with driver debugging enabled. */
1747 buf = kmalloc(4096, GFP_ATOMIC);
1748 if (!buf) {
1749 b43dbg(dev->wl, "SHM-dump: Failed to allocate memory\n");
1750 goto out;
1751 }
1752 for (i = 0; i < 4096; i += 2) {
1753 u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, i);
1754 buf[i / 2] = cpu_to_le16(tmp);
1755 }
1756 b43info(dev->wl, "Shared memory dump:\n");
1757 print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET,
1758 16, 2, buf, 4096, 1);
1759 kfree(buf);
1760 break;
1761 case B43_DEBUGIRQ_DUMP_REGS:
1762 if (!B43_DEBUG)
1763 break; /* Only with driver debugging enabled. */
1764 b43info(dev->wl, "Microcode register dump:\n");
1765 for (i = 0, cnt = 0; i < 64; i++) {
1766 u16 tmp = b43_shm_read16(dev, B43_SHM_SCRATCH, i);
1767 if (cnt == 0)
1768 printk(KERN_INFO);
1769 printk("r%02u: 0x%04X ", i, tmp);
1770 cnt++;
1771 if (cnt == 6) {
1772 printk("\n");
1773 cnt = 0;
1774 }
1775 }
1776 printk("\n");
1777 break;
Michael Buesch53c06852008-05-20 00:24:36 +02001778 case B43_DEBUGIRQ_MARKER:
1779 if (!B43_DEBUG)
1780 break; /* Only with driver debugging enabled. */
1781 marker_id = b43_shm_read16(dev, B43_SHM_SCRATCH,
1782 B43_MARKER_ID_REG);
1783 marker_line = b43_shm_read16(dev, B43_SHM_SCRATCH,
1784 B43_MARKER_LINE_REG);
1785 b43info(dev->wl, "The firmware just executed the MARKER(%u) "
1786 "at line number %u\n",
1787 marker_id, marker_line);
1788 break;
Michael Buesche48b0ee2008-05-17 22:44:35 +02001789 default:
1790 b43dbg(dev->wl, "Debug-IRQ triggered for unknown reason: %u\n",
1791 reason);
1792 }
1793out:
Michael Bueschafa83e22008-05-19 23:51:37 +02001794 /* Acknowledge the debug-IRQ, so the firmware can continue. */
1795 b43_shm_write16(dev, B43_SHM_SCRATCH,
1796 B43_DEBUGIRQ_REASON_REG, B43_DEBUGIRQ_ACK);
Michael Buesche4d6b792007-09-18 15:39:42 -04001797}
1798
Michael Buesch36dbd952009-09-04 22:51:29 +02001799static void b43_do_interrupt_thread(struct b43_wldev *dev)
Michael Buesche4d6b792007-09-18 15:39:42 -04001800{
1801 u32 reason;
1802 u32 dma_reason[ARRAY_SIZE(dev->dma_reason)];
1803 u32 merged_dma_reason = 0;
Michael Buesch21954c32007-09-27 15:31:40 +02001804 int i;
Michael Buesche4d6b792007-09-18 15:39:42 -04001805
Michael Buesch36dbd952009-09-04 22:51:29 +02001806 if (unlikely(b43_status(dev) != B43_STAT_STARTED))
1807 return;
Michael Buesche4d6b792007-09-18 15:39:42 -04001808
1809 reason = dev->irq_reason;
1810 for (i = 0; i < ARRAY_SIZE(dma_reason); i++) {
1811 dma_reason[i] = dev->dma_reason[i];
1812 merged_dma_reason |= dma_reason[i];
1813 }
1814
1815 if (unlikely(reason & B43_IRQ_MAC_TXERR))
1816 b43err(dev->wl, "MAC transmission error\n");
1817
Stefano Brivio00e0b8c2007-11-25 11:10:33 +01001818 if (unlikely(reason & B43_IRQ_PHY_TXERR)) {
Michael Buesche4d6b792007-09-18 15:39:42 -04001819 b43err(dev->wl, "PHY transmission error\n");
Stefano Brivio00e0b8c2007-11-25 11:10:33 +01001820 rmb();
1821 if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) {
1822 atomic_set(&dev->phy.txerr_cnt,
1823 B43_PHY_TX_BADNESS_LIMIT);
1824 b43err(dev->wl, "Too many PHY TX errors, "
1825 "restarting the controller\n");
1826 b43_controller_restart(dev, "PHY TX errors");
1827 }
1828 }
Michael Buesche4d6b792007-09-18 15:39:42 -04001829
1830 if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK |
1831 B43_DMAIRQ_NONFATALMASK))) {
1832 if (merged_dma_reason & B43_DMAIRQ_FATALMASK) {
1833 b43err(dev->wl, "Fatal DMA error: "
1834 "0x%08X, 0x%08X, 0x%08X, "
1835 "0x%08X, 0x%08X, 0x%08X\n",
1836 dma_reason[0], dma_reason[1],
1837 dma_reason[2], dma_reason[3],
1838 dma_reason[4], dma_reason[5]);
Larry Finger214ac9a2009-12-09 13:25:56 -06001839 b43err(dev->wl, "This device does not support DMA "
Larry Fingerbb64d952010-06-19 08:29:08 -05001840 "on your system. It will now be switched to PIO.\n");
Linus Torvalds9e3bd912010-02-26 10:34:27 -08001841 /* Fall back to PIO transfers if we get fatal DMA errors! */
1842 dev->use_pio = 1;
1843 b43_controller_restart(dev, "DMA error");
Michael Buesche4d6b792007-09-18 15:39:42 -04001844 return;
1845 }
1846 if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) {
1847 b43err(dev->wl, "DMA error: "
1848 "0x%08X, 0x%08X, 0x%08X, "
1849 "0x%08X, 0x%08X, 0x%08X\n",
1850 dma_reason[0], dma_reason[1],
1851 dma_reason[2], dma_reason[3],
1852 dma_reason[4], dma_reason[5]);
1853 }
1854 }
1855
1856 if (unlikely(reason & B43_IRQ_UCODE_DEBUG))
1857 handle_irq_ucode_debug(dev);
1858 if (reason & B43_IRQ_TBTT_INDI)
1859 handle_irq_tbtt_indication(dev);
1860 if (reason & B43_IRQ_ATIM_END)
1861 handle_irq_atim_end(dev);
1862 if (reason & B43_IRQ_BEACON)
1863 handle_irq_beacon(dev);
1864 if (reason & B43_IRQ_PMQ)
1865 handle_irq_pmq(dev);
Michael Buesch21954c32007-09-27 15:31:40 +02001866 if (reason & B43_IRQ_TXFIFO_FLUSH_OK)
1867 ;/* TODO */
1868 if (reason & B43_IRQ_NOISESAMPLE_OK)
Michael Buesche4d6b792007-09-18 15:39:42 -04001869 handle_irq_noise(dev);
1870
1871 /* Check the DMA reason registers for received data. */
Michael Buesch5100d5a2008-03-29 21:01:16 +01001872 if (dma_reason[0] & B43_DMAIRQ_RX_DONE) {
1873 if (b43_using_pio_transfers(dev))
1874 b43_pio_rx(dev->pio.rx_queue);
1875 else
1876 b43_dma_rx(dev->dma.rx_ring);
1877 }
Michael Buesche4d6b792007-09-18 15:39:42 -04001878 B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE);
1879 B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE);
Michael Bueschb27faf82008-03-06 16:32:46 +01001880 B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE);
Michael Buesche4d6b792007-09-18 15:39:42 -04001881 B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE);
1882 B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE);
1883
Michael Buesch21954c32007-09-27 15:31:40 +02001884 if (reason & B43_IRQ_TX_OK)
Michael Buesche4d6b792007-09-18 15:39:42 -04001885 handle_irq_transmit_status(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04001886
Michael Buesch36dbd952009-09-04 22:51:29 +02001887 /* Re-enable interrupts on the device by restoring the current interrupt mask. */
Michael Buesch13790722009-04-08 21:26:27 +02001888 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask);
Michael Buesch990b86f2009-09-12 00:48:03 +02001889
1890#if B43_DEBUG
1891 if (b43_debug(dev, B43_DBG_VERBOSESTATS)) {
1892 dev->irq_count++;
1893 for (i = 0; i < ARRAY_SIZE(dev->irq_bit_count); i++) {
1894 if (reason & (1 << i))
1895 dev->irq_bit_count[i]++;
1896 }
1897 }
1898#endif
Michael Buesche4d6b792007-09-18 15:39:42 -04001899}
1900
Michael Buesch36dbd952009-09-04 22:51:29 +02001901/* Interrupt thread handler. Handles device interrupts in thread context. */
1902static irqreturn_t b43_interrupt_thread_handler(int irq, void *dev_id)
Michael Buesche4d6b792007-09-18 15:39:42 -04001903{
Michael Buesche4d6b792007-09-18 15:39:42 -04001904 struct b43_wldev *dev = dev_id;
Michael Buesch36dbd952009-09-04 22:51:29 +02001905
1906 mutex_lock(&dev->wl->mutex);
1907 b43_do_interrupt_thread(dev);
1908 mmiowb();
1909 mutex_unlock(&dev->wl->mutex);
1910
1911 return IRQ_HANDLED;
1912}
1913
1914static irqreturn_t b43_do_interrupt(struct b43_wldev *dev)
1915{
Michael Buesche4d6b792007-09-18 15:39:42 -04001916 u32 reason;
1917
Michael Buesch36dbd952009-09-04 22:51:29 +02001918 /* This code runs under wl->hardirq_lock, but _only_ on non-SDIO busses.
1919 * On SDIO, this runs under wl->mutex. */
Michael Buesche4d6b792007-09-18 15:39:42 -04001920
Michael Buesche4d6b792007-09-18 15:39:42 -04001921 reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
1922 if (reason == 0xffffffff) /* shared IRQ */
Michael Buesch36dbd952009-09-04 22:51:29 +02001923 return IRQ_NONE;
Michael Buesch13790722009-04-08 21:26:27 +02001924 reason &= dev->irq_mask;
Michael Buesche4d6b792007-09-18 15:39:42 -04001925 if (!reason)
Michael Buesch36dbd952009-09-04 22:51:29 +02001926 return IRQ_HANDLED;
Michael Buesche4d6b792007-09-18 15:39:42 -04001927
1928 dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON)
1929 & 0x0001DC00;
1930 dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON)
1931 & 0x0000DC00;
1932 dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON)
1933 & 0x0000DC00;
1934 dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON)
1935 & 0x0001DC00;
1936 dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON)
1937 & 0x0000DC00;
Michael Buesch13790722009-04-08 21:26:27 +02001938/* Unused ring
Michael Buesche4d6b792007-09-18 15:39:42 -04001939 dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON)
1940 & 0x0000DC00;
Michael Buesch13790722009-04-08 21:26:27 +02001941*/
Michael Buesche4d6b792007-09-18 15:39:42 -04001942
Michael Buesch36dbd952009-09-04 22:51:29 +02001943 /* ACK the interrupt. */
1944 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason);
1945 b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]);
1946 b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]);
1947 b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]);
1948 b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]);
1949 b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]);
1950/* Unused ring
1951 b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]);
1952*/
1953
1954 /* Disable IRQs on the device. The IRQ thread handler will re-enable them. */
Michael Buesch13790722009-04-08 21:26:27 +02001955 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0);
Michael Buesch36dbd952009-09-04 22:51:29 +02001956 /* Save the reason bitmasks for the IRQ thread handler. */
Michael Buesche4d6b792007-09-18 15:39:42 -04001957 dev->irq_reason = reason;
Michael Buesch36dbd952009-09-04 22:51:29 +02001958
1959 return IRQ_WAKE_THREAD;
1960}
1961
1962/* Interrupt handler top-half. This runs with interrupts disabled. */
1963static irqreturn_t b43_interrupt_handler(int irq, void *dev_id)
1964{
1965 struct b43_wldev *dev = dev_id;
1966 irqreturn_t ret;
1967
1968 if (unlikely(b43_status(dev) < B43_STAT_STARTED))
1969 return IRQ_NONE;
1970
1971 spin_lock(&dev->wl->hardirq_lock);
1972 ret = b43_do_interrupt(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04001973 mmiowb();
Michael Buesch36dbd952009-09-04 22:51:29 +02001974 spin_unlock(&dev->wl->hardirq_lock);
Michael Buesche4d6b792007-09-18 15:39:42 -04001975
1976 return ret;
1977}
1978
Albert Herranz3dbba8e2009-09-10 19:34:49 +02001979/* SDIO interrupt handler. This runs in process context. */
1980static void b43_sdio_interrupt_handler(struct b43_wldev *dev)
1981{
1982 struct b43_wl *wl = dev->wl;
Albert Herranz3dbba8e2009-09-10 19:34:49 +02001983 irqreturn_t ret;
1984
Albert Herranz3dbba8e2009-09-10 19:34:49 +02001985 mutex_lock(&wl->mutex);
Albert Herranz3dbba8e2009-09-10 19:34:49 +02001986
1987 ret = b43_do_interrupt(dev);
1988 if (ret == IRQ_WAKE_THREAD)
1989 b43_do_interrupt_thread(dev);
1990
Albert Herranz3dbba8e2009-09-10 19:34:49 +02001991 mutex_unlock(&wl->mutex);
1992}
1993
Michael Buesch1a9f5092009-01-23 21:21:51 +01001994void b43_do_release_fw(struct b43_firmware_file *fw)
Michael Buesch61cb5dd2008-01-21 19:55:09 +01001995{
1996 release_firmware(fw->data);
1997 fw->data = NULL;
1998 fw->filename = NULL;
1999}
2000
Michael Buesche4d6b792007-09-18 15:39:42 -04002001static void b43_release_firmware(struct b43_wldev *dev)
2002{
Michael Buesch1a9f5092009-01-23 21:21:51 +01002003 b43_do_release_fw(&dev->fw.ucode);
2004 b43_do_release_fw(&dev->fw.pcm);
2005 b43_do_release_fw(&dev->fw.initvals);
2006 b43_do_release_fw(&dev->fw.initvals_band);
Michael Buesche4d6b792007-09-18 15:39:42 -04002007}
2008
Michael Buescheb189d8b2008-01-28 14:47:41 -08002009static void b43_print_fw_helptext(struct b43_wl *wl, bool error)
Michael Buesche4d6b792007-09-18 15:39:42 -04002010{
Hannes Ederfc68ed42009-02-14 11:50:06 +00002011 const char text[] =
2012 "You must go to " \
2013 "http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware " \
2014 "and download the correct firmware for this driver version. " \
2015 "Please carefully read all instructions on this website.\n";
Michael Buescheb189d8b2008-01-28 14:47:41 -08002016
Michael Buescheb189d8b2008-01-28 14:47:41 -08002017 if (error)
2018 b43err(wl, text);
2019 else
2020 b43warn(wl, text);
Michael Buesche4d6b792007-09-18 15:39:42 -04002021}
2022
Michael Buesch1a9f5092009-01-23 21:21:51 +01002023int b43_do_request_fw(struct b43_request_fw_context *ctx,
2024 const char *name,
2025 struct b43_firmware_file *fw)
Michael Buesche4d6b792007-09-18 15:39:42 -04002026{
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002027 const struct firmware *blob;
Michael Buesche4d6b792007-09-18 15:39:42 -04002028 struct b43_fw_header *hdr;
2029 u32 size;
2030 int err;
2031
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002032 if (!name) {
2033 /* Don't fetch anything. Free possibly cached firmware. */
Michael Buesch1a9f5092009-01-23 21:21:51 +01002034 /* FIXME: We should probably keep it anyway, to save some headache
2035 * on suspend/resume with multiband devices. */
2036 b43_do_release_fw(fw);
Michael Buesche4d6b792007-09-18 15:39:42 -04002037 return 0;
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002038 }
2039 if (fw->filename) {
Michael Buesch1a9f5092009-01-23 21:21:51 +01002040 if ((fw->type == ctx->req_type) &&
2041 (strcmp(fw->filename, name) == 0))
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002042 return 0; /* Already have this fw. */
2043 /* Free the cached firmware first. */
Michael Buesch1a9f5092009-01-23 21:21:51 +01002044 /* FIXME: We should probably do this later after we successfully
2045 * got the new fw. This could reduce headache with multiband devices.
2046 * We could also redesign this to cache the firmware for all possible
2047 * bands all the time. */
2048 b43_do_release_fw(fw);
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002049 }
Michael Buesche4d6b792007-09-18 15:39:42 -04002050
Michael Buesch1a9f5092009-01-23 21:21:51 +01002051 switch (ctx->req_type) {
2052 case B43_FWTYPE_PROPRIETARY:
2053 snprintf(ctx->fwname, sizeof(ctx->fwname),
2054 "b43%s/%s.fw",
2055 modparam_fwpostfix, name);
2056 break;
2057 case B43_FWTYPE_OPENSOURCE:
2058 snprintf(ctx->fwname, sizeof(ctx->fwname),
2059 "b43-open%s/%s.fw",
2060 modparam_fwpostfix, name);
2061 break;
2062 default:
2063 B43_WARN_ON(1);
2064 return -ENOSYS;
2065 }
Rafał Miłeckia18c7152011-05-18 02:06:40 +02002066 err = request_firmware(&blob, ctx->fwname, ctx->dev->dev->dev);
Michael Buesch68217832008-05-17 23:43:57 +02002067 if (err == -ENOENT) {
Michael Buesch1a9f5092009-01-23 21:21:51 +01002068 snprintf(ctx->errors[ctx->req_type],
2069 sizeof(ctx->errors[ctx->req_type]),
2070 "Firmware file \"%s\" not found\n", ctx->fwname);
Michael Buesch68217832008-05-17 23:43:57 +02002071 return err;
2072 } else if (err) {
Michael Buesch1a9f5092009-01-23 21:21:51 +01002073 snprintf(ctx->errors[ctx->req_type],
2074 sizeof(ctx->errors[ctx->req_type]),
2075 "Firmware file \"%s\" request failed (err=%d)\n",
2076 ctx->fwname, err);
Michael Buesche4d6b792007-09-18 15:39:42 -04002077 return err;
2078 }
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002079 if (blob->size < sizeof(struct b43_fw_header))
Michael Buesche4d6b792007-09-18 15:39:42 -04002080 goto err_format;
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002081 hdr = (struct b43_fw_header *)(blob->data);
Michael Buesche4d6b792007-09-18 15:39:42 -04002082 switch (hdr->type) {
2083 case B43_FW_TYPE_UCODE:
2084 case B43_FW_TYPE_PCM:
2085 size = be32_to_cpu(hdr->size);
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002086 if (size != blob->size - sizeof(struct b43_fw_header))
Michael Buesche4d6b792007-09-18 15:39:42 -04002087 goto err_format;
2088 /* fallthrough */
2089 case B43_FW_TYPE_IV:
2090 if (hdr->ver != 1)
2091 goto err_format;
2092 break;
2093 default:
2094 goto err_format;
2095 }
2096
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002097 fw->data = blob;
2098 fw->filename = name;
Michael Buesch1a9f5092009-01-23 21:21:51 +01002099 fw->type = ctx->req_type;
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002100
2101 return 0;
Michael Buesche4d6b792007-09-18 15:39:42 -04002102
2103err_format:
Michael Buesch1a9f5092009-01-23 21:21:51 +01002104 snprintf(ctx->errors[ctx->req_type],
2105 sizeof(ctx->errors[ctx->req_type]),
2106 "Firmware file \"%s\" format error.\n", ctx->fwname);
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002107 release_firmware(blob);
2108
Michael Buesche4d6b792007-09-18 15:39:42 -04002109 return -EPROTO;
2110}
2111
Michael Buesch1a9f5092009-01-23 21:21:51 +01002112static int b43_try_request_fw(struct b43_request_fw_context *ctx)
Michael Buesche4d6b792007-09-18 15:39:42 -04002113{
Michael Buesch1a9f5092009-01-23 21:21:51 +01002114 struct b43_wldev *dev = ctx->dev;
2115 struct b43_firmware *fw = &ctx->dev->fw;
Rafał Miłecki21d889d2011-05-18 02:06:38 +02002116 const u8 rev = ctx->dev->dev->core_rev;
Michael Buesche4d6b792007-09-18 15:39:42 -04002117 const char *filename;
2118 u32 tmshigh;
2119 int err;
2120
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002121 /* Get microcode */
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002122 if ((rev >= 5) && (rev <= 10))
2123 filename = "ucode5";
2124 else if ((rev >= 11) && (rev <= 12))
2125 filename = "ucode11";
Gábor Stefanik759b9732009-08-14 14:39:53 +02002126 else if (rev == 13)
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002127 filename = "ucode13";
Gábor Stefanik759b9732009-08-14 14:39:53 +02002128 else if (rev == 14)
2129 filename = "ucode14";
Rafał Miłeckie41596a2010-12-21 11:50:19 +01002130 else if (rev == 15)
Gábor Stefanik759b9732009-08-14 14:39:53 +02002131 filename = "ucode15";
Rafał Miłeckie41596a2010-12-21 11:50:19 +01002132 else if ((rev >= 16) && (rev <= 20))
2133 filename = "ucode16_mimo";
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002134 else
2135 goto err_no_ucode;
Michael Buesch1a9f5092009-01-23 21:21:51 +01002136 err = b43_do_request_fw(ctx, filename, &fw->ucode);
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002137 if (err)
2138 goto err_load;
2139
2140 /* Get PCM code */
2141 if ((rev >= 5) && (rev <= 10))
2142 filename = "pcm5";
2143 else if (rev >= 11)
2144 filename = NULL;
2145 else
2146 goto err_no_pcm;
Michael Buesch68217832008-05-17 23:43:57 +02002147 fw->pcm_request_failed = 0;
Michael Buesch1a9f5092009-01-23 21:21:51 +01002148 err = b43_do_request_fw(ctx, filename, &fw->pcm);
Michael Buesch68217832008-05-17 23:43:57 +02002149 if (err == -ENOENT) {
2150 /* We did not find a PCM file? Not fatal, but
2151 * core rev <= 10 must do without hwcrypto then. */
2152 fw->pcm_request_failed = 1;
2153 } else if (err)
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002154 goto err_load;
2155
2156 /* Get initvals */
2157 switch (dev->phy.type) {
2158 case B43_PHYTYPE_A:
2159 if ((rev >= 5) && (rev <= 10)) {
Rafał Miłecki75517322011-05-17 19:19:39 +02002160 tmshigh = ssb_read32(dev->sdev, SSB_TMSHIGH);
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002161 if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
2162 filename = "a0g1initvals5";
2163 else
2164 filename = "a0g0initvals5";
2165 } else
2166 goto err_no_initvals;
2167 break;
2168 case B43_PHYTYPE_G:
Michael Buesche4d6b792007-09-18 15:39:42 -04002169 if ((rev >= 5) && (rev <= 10))
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002170 filename = "b0g0initvals5";
Michael Buesche4d6b792007-09-18 15:39:42 -04002171 else if (rev >= 13)
Larry.Finger@lwfinger.nete9304882008-05-15 14:07:36 -05002172 filename = "b0g0initvals13";
Michael Buesche4d6b792007-09-18 15:39:42 -04002173 else
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002174 goto err_no_initvals;
2175 break;
2176 case B43_PHYTYPE_N:
Rafał Miłeckie41596a2010-12-21 11:50:19 +01002177 if (rev >= 16)
2178 filename = "n0initvals16";
2179 else if ((rev >= 11) && (rev <= 12))
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002180 filename = "n0initvals11";
2181 else
2182 goto err_no_initvals;
2183 break;
Gábor Stefanik759b9732009-08-14 14:39:53 +02002184 case B43_PHYTYPE_LP:
2185 if (rev == 13)
2186 filename = "lp0initvals13";
2187 else if (rev == 14)
2188 filename = "lp0initvals14";
2189 else if (rev >= 15)
2190 filename = "lp0initvals15";
2191 else
2192 goto err_no_initvals;
2193 break;
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002194 default:
2195 goto err_no_initvals;
Michael Buesche4d6b792007-09-18 15:39:42 -04002196 }
Michael Buesch1a9f5092009-01-23 21:21:51 +01002197 err = b43_do_request_fw(ctx, filename, &fw->initvals);
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002198 if (err)
2199 goto err_load;
2200
2201 /* Get bandswitch initvals */
2202 switch (dev->phy.type) {
2203 case B43_PHYTYPE_A:
2204 if ((rev >= 5) && (rev <= 10)) {
Rafał Miłecki75517322011-05-17 19:19:39 +02002205 tmshigh = ssb_read32(dev->sdev, SSB_TMSHIGH);
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002206 if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY)
2207 filename = "a0g1bsinitvals5";
2208 else
2209 filename = "a0g0bsinitvals5";
2210 } else if (rev >= 11)
2211 filename = NULL;
2212 else
2213 goto err_no_initvals;
2214 break;
2215 case B43_PHYTYPE_G:
Michael Buesche4d6b792007-09-18 15:39:42 -04002216 if ((rev >= 5) && (rev <= 10))
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002217 filename = "b0g0bsinitvals5";
Michael Buesche4d6b792007-09-18 15:39:42 -04002218 else if (rev >= 11)
2219 filename = NULL;
2220 else
Michael Buesche4d6b792007-09-18 15:39:42 -04002221 goto err_no_initvals;
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002222 break;
2223 case B43_PHYTYPE_N:
Rafał Miłeckie41596a2010-12-21 11:50:19 +01002224 if (rev >= 16)
2225 filename = "n0bsinitvals16";
2226 else if ((rev >= 11) && (rev <= 12))
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002227 filename = "n0bsinitvals11";
2228 else
Michael Buesche4d6b792007-09-18 15:39:42 -04002229 goto err_no_initvals;
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002230 break;
Gábor Stefanik759b9732009-08-14 14:39:53 +02002231 case B43_PHYTYPE_LP:
2232 if (rev == 13)
2233 filename = "lp0bsinitvals13";
2234 else if (rev == 14)
2235 filename = "lp0bsinitvals14";
2236 else if (rev >= 15)
2237 filename = "lp0bsinitvals15";
2238 else
2239 goto err_no_initvals;
2240 break;
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002241 default:
2242 goto err_no_initvals;
Michael Buesche4d6b792007-09-18 15:39:42 -04002243 }
Michael Buesch1a9f5092009-01-23 21:21:51 +01002244 err = b43_do_request_fw(ctx, filename, &fw->initvals_band);
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002245 if (err)
2246 goto err_load;
Michael Buesche4d6b792007-09-18 15:39:42 -04002247
2248 return 0;
2249
Michael Buesche4d6b792007-09-18 15:39:42 -04002250err_no_ucode:
Michael Buesch1a9f5092009-01-23 21:21:51 +01002251 err = ctx->fatal_failure = -EOPNOTSUPP;
2252 b43err(dev->wl, "The driver does not know which firmware (ucode) "
2253 "is required for your device (wl-core rev %u)\n", rev);
Michael Buesche4d6b792007-09-18 15:39:42 -04002254 goto error;
2255
2256err_no_pcm:
Michael Buesch1a9f5092009-01-23 21:21:51 +01002257 err = ctx->fatal_failure = -EOPNOTSUPP;
2258 b43err(dev->wl, "The driver does not know which firmware (PCM) "
2259 "is required for your device (wl-core rev %u)\n", rev);
Michael Buesche4d6b792007-09-18 15:39:42 -04002260 goto error;
2261
2262err_no_initvals:
Michael Buesch1a9f5092009-01-23 21:21:51 +01002263 err = ctx->fatal_failure = -EOPNOTSUPP;
2264 b43err(dev->wl, "The driver does not know which firmware (initvals) "
2265 "is required for your device (wl-core rev %u)\n", rev);
2266 goto error;
2267
2268err_load:
2269 /* We failed to load this firmware image. The error message
2270 * already is in ctx->errors. Return and let our caller decide
2271 * what to do. */
Michael Buesche4d6b792007-09-18 15:39:42 -04002272 goto error;
2273
2274error:
2275 b43_release_firmware(dev);
2276 return err;
2277}
2278
Michael Buesch1a9f5092009-01-23 21:21:51 +01002279static int b43_request_firmware(struct b43_wldev *dev)
2280{
2281 struct b43_request_fw_context *ctx;
2282 unsigned int i;
2283 int err;
2284 const char *errmsg;
2285
2286 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
2287 if (!ctx)
2288 return -ENOMEM;
2289 ctx->dev = dev;
2290
2291 ctx->req_type = B43_FWTYPE_PROPRIETARY;
2292 err = b43_try_request_fw(ctx);
2293 if (!err)
2294 goto out; /* Successfully loaded it. */
2295 err = ctx->fatal_failure;
2296 if (err)
2297 goto out;
2298
2299 ctx->req_type = B43_FWTYPE_OPENSOURCE;
2300 err = b43_try_request_fw(ctx);
2301 if (!err)
2302 goto out; /* Successfully loaded it. */
2303 err = ctx->fatal_failure;
2304 if (err)
2305 goto out;
2306
2307 /* Could not find a usable firmware. Print the errors. */
2308 for (i = 0; i < B43_NR_FWTYPES; i++) {
2309 errmsg = ctx->errors[i];
2310 if (strlen(errmsg))
2311 b43err(dev->wl, errmsg);
2312 }
2313 b43_print_fw_helptext(dev->wl, 1);
2314 err = -ENOENT;
2315
2316out:
2317 kfree(ctx);
2318 return err;
2319}
2320
Michael Buesche4d6b792007-09-18 15:39:42 -04002321static int b43_upload_microcode(struct b43_wldev *dev)
2322{
John W. Linville652caa52010-07-29 13:27:28 -04002323 struct wiphy *wiphy = dev->wl->hw->wiphy;
Michael Buesche4d6b792007-09-18 15:39:42 -04002324 const size_t hdr_len = sizeof(struct b43_fw_header);
2325 const __be32 *data;
2326 unsigned int i, len;
2327 u16 fwrev, fwpatch, fwdate, fwtime;
Michael Buesch1f7d87b2008-01-22 20:23:34 +01002328 u32 tmp, macctl;
Michael Buesche4d6b792007-09-18 15:39:42 -04002329 int err = 0;
2330
Michael Buesch1f7d87b2008-01-22 20:23:34 +01002331 /* Jump the microcode PSM to offset 0 */
2332 macctl = b43_read32(dev, B43_MMIO_MACCTL);
2333 B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN);
2334 macctl |= B43_MACCTL_PSM_JMP0;
2335 b43_write32(dev, B43_MMIO_MACCTL, macctl);
2336 /* Zero out all microcode PSM registers and shared memory. */
2337 for (i = 0; i < 64; i++)
2338 b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0);
2339 for (i = 0; i < 4096; i += 2)
2340 b43_shm_write16(dev, B43_SHM_SHARED, i, 0);
2341
Michael Buesche4d6b792007-09-18 15:39:42 -04002342 /* Upload Microcode. */
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002343 data = (__be32 *) (dev->fw.ucode.data->data + hdr_len);
2344 len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32);
Michael Buesche4d6b792007-09-18 15:39:42 -04002345 b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000);
2346 for (i = 0; i < len; i++) {
2347 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
2348 udelay(10);
2349 }
2350
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002351 if (dev->fw.pcm.data) {
Michael Buesche4d6b792007-09-18 15:39:42 -04002352 /* Upload PCM data. */
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002353 data = (__be32 *) (dev->fw.pcm.data->data + hdr_len);
2354 len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32);
Michael Buesche4d6b792007-09-18 15:39:42 -04002355 b43_shm_control_word(dev, B43_SHM_HW, 0x01EA);
2356 b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000);
2357 /* No need for autoinc bit in SHM_HW */
2358 b43_shm_control_word(dev, B43_SHM_HW, 0x01EB);
2359 for (i = 0; i < len; i++) {
2360 b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i]));
2361 udelay(10);
2362 }
2363 }
2364
2365 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL);
Michael Buesch1f7d87b2008-01-22 20:23:34 +01002366
2367 /* Start the microcode PSM */
2368 macctl = b43_read32(dev, B43_MMIO_MACCTL);
2369 macctl &= ~B43_MACCTL_PSM_JMP0;
2370 macctl |= B43_MACCTL_PSM_RUN;
2371 b43_write32(dev, B43_MMIO_MACCTL, macctl);
Michael Buesche4d6b792007-09-18 15:39:42 -04002372
2373 /* Wait for the microcode to load and respond */
2374 i = 0;
2375 while (1) {
2376 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2377 if (tmp == B43_IRQ_MAC_SUSPENDED)
2378 break;
2379 i++;
Michael Buesch1f7d87b2008-01-22 20:23:34 +01002380 if (i >= 20) {
Michael Buesche4d6b792007-09-18 15:39:42 -04002381 b43err(dev->wl, "Microcode not responding\n");
Michael Buescheb189d8b2008-01-28 14:47:41 -08002382 b43_print_fw_helptext(dev->wl, 1);
Michael Buesche4d6b792007-09-18 15:39:42 -04002383 err = -ENODEV;
Michael Buesch1f7d87b2008-01-22 20:23:34 +01002384 goto error;
Michael Buesche4d6b792007-09-18 15:39:42 -04002385 }
Michael Buesche175e992009-09-11 18:31:32 +02002386 msleep(50);
Michael Buesche4d6b792007-09-18 15:39:42 -04002387 }
2388 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */
2389
2390 /* Get and check the revisions. */
2391 fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV);
2392 fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH);
2393 fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE);
2394 fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME);
2395
2396 if (fwrev <= 0x128) {
2397 b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from "
2398 "binary drivers older than version 4.x is unsupported. "
2399 "You must upgrade your firmware files.\n");
Michael Buescheb189d8b2008-01-28 14:47:41 -08002400 b43_print_fw_helptext(dev->wl, 1);
Michael Buesche4d6b792007-09-18 15:39:42 -04002401 err = -EOPNOTSUPP;
Michael Buesch1f7d87b2008-01-22 20:23:34 +01002402 goto error;
Michael Buesche4d6b792007-09-18 15:39:42 -04002403 }
Michael Buesche4d6b792007-09-18 15:39:42 -04002404 dev->fw.rev = fwrev;
2405 dev->fw.patch = fwpatch;
Michael Buesche48b0ee2008-05-17 22:44:35 +02002406 dev->fw.opensource = (fwdate == 0xFFFF);
2407
Michael Buesch403a3a12009-06-08 21:04:57 +02002408 /* Default to use-all-queues. */
2409 dev->wl->hw->queues = dev->wl->mac80211_initially_registered_queues;
2410 dev->qos_enabled = !!modparam_qos;
2411 /* Default to firmware/hardware crypto acceleration. */
2412 dev->hwcrypto_enabled = 1;
2413
Michael Buesche48b0ee2008-05-17 22:44:35 +02002414 if (dev->fw.opensource) {
Michael Buesch403a3a12009-06-08 21:04:57 +02002415 u16 fwcapa;
2416
Michael Buesche48b0ee2008-05-17 22:44:35 +02002417 /* Patchlevel info is encoded in the "time" field. */
2418 dev->fw.patch = fwtime;
Michael Buesch403a3a12009-06-08 21:04:57 +02002419 b43info(dev->wl, "Loading OpenSource firmware version %u.%u\n",
2420 dev->fw.rev, dev->fw.patch);
2421
2422 fwcapa = b43_fwcapa_read(dev);
2423 if (!(fwcapa & B43_FWCAPA_HWCRYPTO) || dev->fw.pcm_request_failed) {
2424 b43info(dev->wl, "Hardware crypto acceleration not supported by firmware\n");
2425 /* Disable hardware crypto and fall back to software crypto. */
2426 dev->hwcrypto_enabled = 0;
2427 }
2428 if (!(fwcapa & B43_FWCAPA_QOS)) {
2429 b43info(dev->wl, "QoS not supported by firmware\n");
2430 /* Disable QoS. Tweak hw->queues to 1. It will be restored before
2431 * ieee80211_unregister to make sure the networking core can
2432 * properly free possible resources. */
2433 dev->wl->hw->queues = 1;
2434 dev->qos_enabled = 0;
2435 }
Michael Buesche48b0ee2008-05-17 22:44:35 +02002436 } else {
2437 b43info(dev->wl, "Loading firmware version %u.%u "
2438 "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n",
2439 fwrev, fwpatch,
2440 (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF,
2441 (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F);
Michael Buesch68217832008-05-17 23:43:57 +02002442 if (dev->fw.pcm_request_failed) {
2443 b43warn(dev->wl, "No \"pcm5.fw\" firmware file found. "
2444 "Hardware accelerated cryptography is disabled.\n");
2445 b43_print_fw_helptext(dev->wl, 0);
2446 }
Michael Buesche48b0ee2008-05-17 22:44:35 +02002447 }
Michael Buesche4d6b792007-09-18 15:39:42 -04002448
John W. Linville652caa52010-07-29 13:27:28 -04002449 snprintf(wiphy->fw_version, sizeof(wiphy->fw_version), "%u.%u",
2450 dev->fw.rev, dev->fw.patch);
Rafał Miłecki21d889d2011-05-18 02:06:38 +02002451 wiphy->hw_version = dev->dev->core_id;
John W. Linville652caa52010-07-29 13:27:28 -04002452
Michael Buescheb189d8b2008-01-28 14:47:41 -08002453 if (b43_is_old_txhdr_format(dev)) {
Michael Bueschc5572892008-12-27 18:26:39 +01002454 /* We're over the deadline, but we keep support for old fw
2455 * until it turns out to be in major conflict with something new. */
Michael Buescheb189d8b2008-01-28 14:47:41 -08002456 b43warn(dev->wl, "You are using an old firmware image. "
Michael Bueschc5572892008-12-27 18:26:39 +01002457 "Support for old firmware will be removed soon "
2458 "(official deadline was July 2008).\n");
Michael Buescheb189d8b2008-01-28 14:47:41 -08002459 b43_print_fw_helptext(dev->wl, 0);
2460 }
2461
Michael Buesch1f7d87b2008-01-22 20:23:34 +01002462 return 0;
2463
2464error:
2465 macctl = b43_read32(dev, B43_MMIO_MACCTL);
2466 macctl &= ~B43_MACCTL_PSM_RUN;
2467 macctl |= B43_MACCTL_PSM_JMP0;
2468 b43_write32(dev, B43_MMIO_MACCTL, macctl);
2469
Michael Buesche4d6b792007-09-18 15:39:42 -04002470 return err;
2471}
2472
2473static int b43_write_initvals(struct b43_wldev *dev,
2474 const struct b43_iv *ivals,
2475 size_t count,
2476 size_t array_size)
2477{
2478 const struct b43_iv *iv;
2479 u16 offset;
2480 size_t i;
2481 bool bit32;
2482
2483 BUILD_BUG_ON(sizeof(struct b43_iv) != 6);
2484 iv = ivals;
2485 for (i = 0; i < count; i++) {
2486 if (array_size < sizeof(iv->offset_size))
2487 goto err_format;
2488 array_size -= sizeof(iv->offset_size);
2489 offset = be16_to_cpu(iv->offset_size);
2490 bit32 = !!(offset & B43_IV_32BIT);
2491 offset &= B43_IV_OFFSET_MASK;
2492 if (offset >= 0x1000)
2493 goto err_format;
2494 if (bit32) {
2495 u32 value;
2496
2497 if (array_size < sizeof(iv->data.d32))
2498 goto err_format;
2499 array_size -= sizeof(iv->data.d32);
2500
Harvey Harrison533dd1b2008-04-29 01:03:36 -07002501 value = get_unaligned_be32(&iv->data.d32);
Michael Buesche4d6b792007-09-18 15:39:42 -04002502 b43_write32(dev, offset, value);
2503
2504 iv = (const struct b43_iv *)((const uint8_t *)iv +
2505 sizeof(__be16) +
2506 sizeof(__be32));
2507 } else {
2508 u16 value;
2509
2510 if (array_size < sizeof(iv->data.d16))
2511 goto err_format;
2512 array_size -= sizeof(iv->data.d16);
2513
2514 value = be16_to_cpu(iv->data.d16);
2515 b43_write16(dev, offset, value);
2516
2517 iv = (const struct b43_iv *)((const uint8_t *)iv +
2518 sizeof(__be16) +
2519 sizeof(__be16));
2520 }
2521 }
2522 if (array_size)
2523 goto err_format;
2524
2525 return 0;
2526
2527err_format:
2528 b43err(dev->wl, "Initial Values Firmware file-format error.\n");
Michael Buescheb189d8b2008-01-28 14:47:41 -08002529 b43_print_fw_helptext(dev->wl, 1);
Michael Buesche4d6b792007-09-18 15:39:42 -04002530
2531 return -EPROTO;
2532}
2533
2534static int b43_upload_initvals(struct b43_wldev *dev)
2535{
2536 const size_t hdr_len = sizeof(struct b43_fw_header);
2537 const struct b43_fw_header *hdr;
2538 struct b43_firmware *fw = &dev->fw;
2539 const struct b43_iv *ivals;
2540 size_t count;
2541 int err;
2542
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002543 hdr = (const struct b43_fw_header *)(fw->initvals.data->data);
2544 ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len);
Michael Buesche4d6b792007-09-18 15:39:42 -04002545 count = be32_to_cpu(hdr->size);
2546 err = b43_write_initvals(dev, ivals, count,
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002547 fw->initvals.data->size - hdr_len);
Michael Buesche4d6b792007-09-18 15:39:42 -04002548 if (err)
2549 goto out;
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002550 if (fw->initvals_band.data) {
2551 hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data);
2552 ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len);
Michael Buesche4d6b792007-09-18 15:39:42 -04002553 count = be32_to_cpu(hdr->size);
2554 err = b43_write_initvals(dev, ivals, count,
Michael Buesch61cb5dd2008-01-21 19:55:09 +01002555 fw->initvals_band.data->size - hdr_len);
Michael Buesche4d6b792007-09-18 15:39:42 -04002556 if (err)
2557 goto out;
2558 }
2559out:
2560
2561 return err;
2562}
2563
2564/* Initialize the GPIOs
2565 * http://bcm-specs.sipsolutions.net/GPIO
2566 */
Rafał Miłeckic4a2a082011-05-17 18:57:27 +02002567static struct ssb_device *b43_ssb_gpio_dev(struct b43_wldev *dev)
Michael Buesche4d6b792007-09-18 15:39:42 -04002568{
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02002569 struct ssb_bus *bus = dev->sdev->bus;
Rafał Miłeckic4a2a082011-05-17 18:57:27 +02002570
2571#ifdef CONFIG_SSB_DRIVER_PCICORE
2572 return (bus->chipco.dev ? bus->chipco.dev : bus->pcicore.dev);
2573#else
2574 return bus->chipco.dev;
2575#endif
2576}
2577
Michael Buesche4d6b792007-09-18 15:39:42 -04002578static int b43_gpio_init(struct b43_wldev *dev)
2579{
Rafał Miłeckic4a2a082011-05-17 18:57:27 +02002580 struct ssb_device *gpiodev;
Michael Buesche4d6b792007-09-18 15:39:42 -04002581 u32 mask, set;
2582
2583 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2584 & ~B43_MACCTL_GPOUTSMSK);
2585
Michael Buesche4d6b792007-09-18 15:39:42 -04002586 b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK)
2587 | 0x000F);
2588
2589 mask = 0x0000001F;
2590 set = 0x0000000F;
Rafał Miłeckic244e082011-05-18 02:06:41 +02002591 if (dev->dev->chip_id == 0x4301) {
Michael Buesche4d6b792007-09-18 15:39:42 -04002592 mask |= 0x0060;
2593 set |= 0x0060;
2594 }
2595 if (0 /* FIXME: conditional unknown */ ) {
2596 b43_write16(dev, B43_MMIO_GPIO_MASK,
2597 b43_read16(dev, B43_MMIO_GPIO_MASK)
2598 | 0x0100);
2599 mask |= 0x0180;
2600 set |= 0x0180;
2601 }
Rafał Miłecki05814832011-05-18 02:06:39 +02002602 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL) {
Michael Buesche4d6b792007-09-18 15:39:42 -04002603 b43_write16(dev, B43_MMIO_GPIO_MASK,
2604 b43_read16(dev, B43_MMIO_GPIO_MASK)
2605 | 0x0200);
2606 mask |= 0x0200;
2607 set |= 0x0200;
2608 }
Rafał Miłecki21d889d2011-05-18 02:06:38 +02002609 if (dev->dev->core_rev >= 2)
Michael Buesche4d6b792007-09-18 15:39:42 -04002610 mask |= 0x0010; /* FIXME: This is redundant. */
2611
Rafał Miłeckic4a2a082011-05-17 18:57:27 +02002612 gpiodev = b43_ssb_gpio_dev(dev);
2613 if (gpiodev)
2614 ssb_write32(gpiodev, B43_GPIO_CONTROL,
2615 (ssb_read32(gpiodev, B43_GPIO_CONTROL)
2616 & mask) | set);
Michael Buesche4d6b792007-09-18 15:39:42 -04002617
2618 return 0;
2619}
2620
2621/* Turn off all GPIO stuff. Call this on module unload, for example. */
2622static void b43_gpio_cleanup(struct b43_wldev *dev)
2623{
Rafał Miłeckic4a2a082011-05-17 18:57:27 +02002624 struct ssb_device *gpiodev;
Michael Buesche4d6b792007-09-18 15:39:42 -04002625
Rafał Miłeckic4a2a082011-05-17 18:57:27 +02002626 gpiodev = b43_ssb_gpio_dev(dev);
2627 if (gpiodev)
2628 ssb_write32(gpiodev, B43_GPIO_CONTROL, 0);
Michael Buesche4d6b792007-09-18 15:39:42 -04002629}
2630
2631/* http://bcm-specs.sipsolutions.net/EnableMac */
Michael Bueschf5eda472008-04-20 16:03:32 +02002632void b43_mac_enable(struct b43_wldev *dev)
Michael Buesche4d6b792007-09-18 15:39:42 -04002633{
Michael Buesch923fd702008-06-20 18:02:08 +02002634 if (b43_debug(dev, B43_DBG_FIRMWARE)) {
2635 u16 fwstate;
2636
2637 fwstate = b43_shm_read16(dev, B43_SHM_SHARED,
2638 B43_SHM_SH_UCODESTAT);
2639 if ((fwstate != B43_SHM_SH_UCODESTAT_SUSP) &&
2640 (fwstate != B43_SHM_SH_UCODESTAT_SLEEP)) {
2641 b43err(dev->wl, "b43_mac_enable(): The firmware "
2642 "should be suspended, but current state is %u\n",
2643 fwstate);
2644 }
2645 }
2646
Michael Buesche4d6b792007-09-18 15:39:42 -04002647 dev->mac_suspended--;
2648 B43_WARN_ON(dev->mac_suspended < 0);
2649 if (dev->mac_suspended == 0) {
2650 b43_write32(dev, B43_MMIO_MACCTL,
2651 b43_read32(dev, B43_MMIO_MACCTL)
2652 | B43_MACCTL_ENABLED);
2653 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON,
2654 B43_IRQ_MAC_SUSPENDED);
2655 /* Commit writes */
2656 b43_read32(dev, B43_MMIO_MACCTL);
2657 b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2658 b43_power_saving_ctl_bits(dev, 0);
2659 }
2660}
2661
2662/* http://bcm-specs.sipsolutions.net/SuspendMAC */
Michael Bueschf5eda472008-04-20 16:03:32 +02002663void b43_mac_suspend(struct b43_wldev *dev)
Michael Buesche4d6b792007-09-18 15:39:42 -04002664{
2665 int i;
2666 u32 tmp;
2667
Michael Buesch05b64b32007-09-28 16:19:03 +02002668 might_sleep();
Michael Buesche4d6b792007-09-18 15:39:42 -04002669 B43_WARN_ON(dev->mac_suspended < 0);
Michael Buesch05b64b32007-09-28 16:19:03 +02002670
Michael Buesche4d6b792007-09-18 15:39:42 -04002671 if (dev->mac_suspended == 0) {
2672 b43_power_saving_ctl_bits(dev, B43_PS_AWAKE);
2673 b43_write32(dev, B43_MMIO_MACCTL,
2674 b43_read32(dev, B43_MMIO_MACCTL)
2675 & ~B43_MACCTL_ENABLED);
2676 /* force pci to flush the write */
2677 b43_read32(dev, B43_MMIO_MACCTL);
Michael Bueschba380012008-04-15 21:13:36 +02002678 for (i = 35; i; i--) {
2679 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2680 if (tmp & B43_IRQ_MAC_SUSPENDED)
2681 goto out;
2682 udelay(10);
2683 }
2684 /* Hm, it seems this will take some time. Use msleep(). */
Michael Buesch05b64b32007-09-28 16:19:03 +02002685 for (i = 40; i; i--) {
Michael Buesche4d6b792007-09-18 15:39:42 -04002686 tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON);
2687 if (tmp & B43_IRQ_MAC_SUSPENDED)
2688 goto out;
Michael Buesch05b64b32007-09-28 16:19:03 +02002689 msleep(1);
Michael Buesche4d6b792007-09-18 15:39:42 -04002690 }
2691 b43err(dev->wl, "MAC suspend failed\n");
2692 }
Michael Buesch05b64b32007-09-28 16:19:03 +02002693out:
Michael Buesche4d6b792007-09-18 15:39:42 -04002694 dev->mac_suspended++;
2695}
2696
Rafał Miłecki858a1652011-05-10 16:05:33 +02002697/* http://bcm-v4.sipsolutions.net/802.11/PHY/N/MacPhyClkSet */
2698void b43_mac_phy_clock_set(struct b43_wldev *dev, bool on)
2699{
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02002700 u32 tmslow = ssb_read32(dev->sdev, SSB_TMSLOW);
Rafał Miłecki858a1652011-05-10 16:05:33 +02002701 if (on)
2702 tmslow |= B43_TMSLOW_MACPHYCLKEN;
2703 else
2704 tmslow &= ~B43_TMSLOW_MACPHYCLKEN;
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02002705 ssb_write32(dev->sdev, SSB_TMSLOW, tmslow);
Rafał Miłecki858a1652011-05-10 16:05:33 +02002706}
2707
Michael Buesche4d6b792007-09-18 15:39:42 -04002708static void b43_adjust_opmode(struct b43_wldev *dev)
2709{
2710 struct b43_wl *wl = dev->wl;
2711 u32 ctl;
2712 u16 cfp_pretbtt;
2713
2714 ctl = b43_read32(dev, B43_MMIO_MACCTL);
2715 /* Reset status to STA infrastructure mode. */
2716 ctl &= ~B43_MACCTL_AP;
2717 ctl &= ~B43_MACCTL_KEEP_CTL;
2718 ctl &= ~B43_MACCTL_KEEP_BADPLCP;
2719 ctl &= ~B43_MACCTL_KEEP_BAD;
2720 ctl &= ~B43_MACCTL_PROMISC;
Johannes Berg4150c572007-09-17 01:29:23 -04002721 ctl &= ~B43_MACCTL_BEACPROMISC;
Michael Buesche4d6b792007-09-18 15:39:42 -04002722 ctl |= B43_MACCTL_INFRA;
2723
Johannes Berg05c914f2008-09-11 00:01:58 +02002724 if (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
2725 b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT))
Johannes Berg4150c572007-09-17 01:29:23 -04002726 ctl |= B43_MACCTL_AP;
Johannes Berg05c914f2008-09-11 00:01:58 +02002727 else if (b43_is_mode(wl, NL80211_IFTYPE_ADHOC))
Johannes Berg4150c572007-09-17 01:29:23 -04002728 ctl &= ~B43_MACCTL_INFRA;
2729
2730 if (wl->filter_flags & FIF_CONTROL)
Michael Buesche4d6b792007-09-18 15:39:42 -04002731 ctl |= B43_MACCTL_KEEP_CTL;
Johannes Berg4150c572007-09-17 01:29:23 -04002732 if (wl->filter_flags & FIF_FCSFAIL)
2733 ctl |= B43_MACCTL_KEEP_BAD;
2734 if (wl->filter_flags & FIF_PLCPFAIL)
2735 ctl |= B43_MACCTL_KEEP_BADPLCP;
2736 if (wl->filter_flags & FIF_PROMISC_IN_BSS)
Michael Buesche4d6b792007-09-18 15:39:42 -04002737 ctl |= B43_MACCTL_PROMISC;
Johannes Berg4150c572007-09-17 01:29:23 -04002738 if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC)
2739 ctl |= B43_MACCTL_BEACPROMISC;
2740
Michael Buesche4d6b792007-09-18 15:39:42 -04002741 /* Workaround: On old hardware the HW-MAC-address-filter
2742 * doesn't work properly, so always run promisc in filter
2743 * it in software. */
Rafał Miłecki21d889d2011-05-18 02:06:38 +02002744 if (dev->dev->core_rev <= 4)
Michael Buesche4d6b792007-09-18 15:39:42 -04002745 ctl |= B43_MACCTL_PROMISC;
2746
2747 b43_write32(dev, B43_MMIO_MACCTL, ctl);
2748
2749 cfp_pretbtt = 2;
2750 if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) {
Rafał Miłeckic244e082011-05-18 02:06:41 +02002751 if (dev->dev->chip_id == 0x4306 &&
2752 dev->dev->chip_rev == 3)
Michael Buesche4d6b792007-09-18 15:39:42 -04002753 cfp_pretbtt = 100;
2754 else
2755 cfp_pretbtt = 50;
2756 }
2757 b43_write16(dev, 0x612, cfp_pretbtt);
Michael Buesch09ebe2f2009-09-12 00:52:48 +02002758
2759 /* FIXME: We don't currently implement the PMQ mechanism,
2760 * so always disable it. If we want to implement PMQ,
2761 * we need to enable it here (clear DISCPMQ) in AP mode.
2762 */
2763 if (0 /* ctl & B43_MACCTL_AP */) {
2764 b43_write32(dev, B43_MMIO_MACCTL,
2765 b43_read32(dev, B43_MMIO_MACCTL)
2766 & ~B43_MACCTL_DISCPMQ);
2767 } else {
2768 b43_write32(dev, B43_MMIO_MACCTL,
2769 b43_read32(dev, B43_MMIO_MACCTL)
2770 | B43_MACCTL_DISCPMQ);
2771 }
Michael Buesche4d6b792007-09-18 15:39:42 -04002772}
2773
2774static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm)
2775{
2776 u16 offset;
2777
2778 if (is_ofdm) {
2779 offset = 0x480;
2780 offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2;
2781 } else {
2782 offset = 0x4C0;
2783 offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2;
2784 }
2785 b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20,
2786 b43_shm_read16(dev, B43_SHM_SHARED, offset));
2787}
2788
2789static void b43_rate_memory_init(struct b43_wldev *dev)
2790{
2791 switch (dev->phy.type) {
2792 case B43_PHYTYPE_A:
2793 case B43_PHYTYPE_G:
Michael Buesch53a6e232008-01-13 21:23:44 +01002794 case B43_PHYTYPE_N:
Gábor Stefanik9d86a2d2009-08-14 14:54:46 +02002795 case B43_PHYTYPE_LP:
Michael Buesche4d6b792007-09-18 15:39:42 -04002796 b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1);
2797 b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1);
2798 b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1);
2799 b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1);
2800 b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1);
2801 b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1);
2802 b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1);
2803 if (dev->phy.type == B43_PHYTYPE_A)
2804 break;
2805 /* fallthrough */
2806 case B43_PHYTYPE_B:
2807 b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0);
2808 b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0);
2809 b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0);
2810 b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0);
2811 break;
2812 default:
2813 B43_WARN_ON(1);
2814 }
2815}
2816
Michael Buesch5042c502008-04-05 15:05:00 +02002817/* Set the default values for the PHY TX Control Words. */
2818static void b43_set_phytxctl_defaults(struct b43_wldev *dev)
2819{
2820 u16 ctl = 0;
2821
2822 ctl |= B43_TXH_PHY_ENC_CCK;
2823 ctl |= B43_TXH_PHY_ANT01AUTO;
2824 ctl |= B43_TXH_PHY_TXPWR;
2825
2826 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl);
2827 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, ctl);
2828 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, ctl);
2829}
2830
Michael Buesche4d6b792007-09-18 15:39:42 -04002831/* Set the TX-Antenna for management frames sent by firmware. */
2832static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna)
2833{
Michael Buesch5042c502008-04-05 15:05:00 +02002834 u16 ant;
Michael Buesche4d6b792007-09-18 15:39:42 -04002835 u16 tmp;
2836
Michael Buesch5042c502008-04-05 15:05:00 +02002837 ant = b43_antenna_to_phyctl(antenna);
Michael Buesche4d6b792007-09-18 15:39:42 -04002838
Michael Buesche4d6b792007-09-18 15:39:42 -04002839 /* For ACK/CTS */
2840 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL);
Michael Buescheb189d8b2008-01-28 14:47:41 -08002841 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
Michael Buesche4d6b792007-09-18 15:39:42 -04002842 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp);
2843 /* For Probe Resposes */
2844 tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL);
Michael Buescheb189d8b2008-01-28 14:47:41 -08002845 tmp = (tmp & ~B43_TXH_PHY_ANT) | ant;
Michael Buesche4d6b792007-09-18 15:39:42 -04002846 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp);
2847}
2848
2849/* This is the opposite of b43_chip_init() */
2850static void b43_chip_exit(struct b43_wldev *dev)
2851{
Michael Bueschfb111372008-09-02 13:00:34 +02002852 b43_phy_exit(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04002853 b43_gpio_cleanup(dev);
2854 /* firmware is released later */
2855}
2856
2857/* Initialize the chip
2858 * http://bcm-specs.sipsolutions.net/ChipInit
2859 */
2860static int b43_chip_init(struct b43_wldev *dev)
2861{
2862 struct b43_phy *phy = &dev->phy;
Michael Bueschef1a6282008-08-27 18:53:02 +02002863 int err;
Rafał Miłecki858a1652011-05-10 16:05:33 +02002864 u32 macctl;
Michael Buesche4d6b792007-09-18 15:39:42 -04002865 u16 value16;
2866
Michael Buesch1f7d87b2008-01-22 20:23:34 +01002867 /* Initialize the MAC control */
2868 macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED;
2869 if (dev->phy.gmode)
2870 macctl |= B43_MACCTL_GMODE;
2871 macctl |= B43_MACCTL_INFRA;
2872 b43_write32(dev, B43_MMIO_MACCTL, macctl);
Michael Buesche4d6b792007-09-18 15:39:42 -04002873
2874 err = b43_request_firmware(dev);
2875 if (err)
2876 goto out;
2877 err = b43_upload_microcode(dev);
2878 if (err)
2879 goto out; /* firmware is released later */
2880
2881 err = b43_gpio_init(dev);
2882 if (err)
2883 goto out; /* firmware is released later */
Michael Buesch21954c32007-09-27 15:31:40 +02002884
Michael Buesche4d6b792007-09-18 15:39:42 -04002885 err = b43_upload_initvals(dev);
2886 if (err)
Larry Finger1a8d1222007-12-14 13:59:11 +01002887 goto err_gpio_clean;
Michael Buesche4d6b792007-09-18 15:39:42 -04002888
Michael Buesch0b7dcd92008-09-03 12:31:54 +02002889 /* Turn the Analog on and initialize the PHY. */
2890 phy->ops->switch_analog(dev, 1);
Michael Buesche4d6b792007-09-18 15:39:42 -04002891 err = b43_phy_init(dev);
2892 if (err)
Michael Bueschef1a6282008-08-27 18:53:02 +02002893 goto err_gpio_clean;
Michael Buesche4d6b792007-09-18 15:39:42 -04002894
Michael Bueschef1a6282008-08-27 18:53:02 +02002895 /* Disable Interference Mitigation. */
2896 if (phy->ops->interf_mitigation)
2897 phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE);
Michael Buesche4d6b792007-09-18 15:39:42 -04002898
Michael Bueschef1a6282008-08-27 18:53:02 +02002899 /* Select the antennae */
2900 if (phy->ops->set_rx_antenna)
2901 phy->ops->set_rx_antenna(dev, B43_ANTENNA_DEFAULT);
Michael Buesche4d6b792007-09-18 15:39:42 -04002902 b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT);
2903
2904 if (phy->type == B43_PHYTYPE_B) {
2905 value16 = b43_read16(dev, 0x005E);
2906 value16 |= 0x0004;
2907 b43_write16(dev, 0x005E, value16);
2908 }
2909 b43_write32(dev, 0x0100, 0x01000000);
Rafał Miłecki21d889d2011-05-18 02:06:38 +02002910 if (dev->dev->core_rev < 5)
Michael Buesche4d6b792007-09-18 15:39:42 -04002911 b43_write32(dev, 0x010C, 0x01000000);
2912
2913 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2914 & ~B43_MACCTL_INFRA);
2915 b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL)
2916 | B43_MACCTL_INFRA);
Michael Buesche4d6b792007-09-18 15:39:42 -04002917
Michael Buesche4d6b792007-09-18 15:39:42 -04002918 /* Probe Response Timeout value */
2919 /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */
2920 b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000);
2921
2922 /* Initially set the wireless operation mode. */
2923 b43_adjust_opmode(dev);
2924
Rafał Miłecki21d889d2011-05-18 02:06:38 +02002925 if (dev->dev->core_rev < 3) {
Michael Buesche4d6b792007-09-18 15:39:42 -04002926 b43_write16(dev, 0x060E, 0x0000);
2927 b43_write16(dev, 0x0610, 0x8000);
2928 b43_write16(dev, 0x0604, 0x0000);
2929 b43_write16(dev, 0x0606, 0x0200);
2930 } else {
2931 b43_write32(dev, 0x0188, 0x80000000);
2932 b43_write32(dev, 0x018C, 0x02000000);
2933 }
2934 b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000);
2935 b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00);
2936 b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00);
2937 b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00);
2938 b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00);
2939 b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00);
2940 b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00);
2941
Rafał Miłecki858a1652011-05-10 16:05:33 +02002942 b43_mac_phy_clock_set(dev, true);
Michael Buesche4d6b792007-09-18 15:39:42 -04002943
2944 b43_write16(dev, B43_MMIO_POWERUP_DELAY,
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02002945 dev->sdev->bus->chipco.fast_pwrup_delay);
Michael Buesche4d6b792007-09-18 15:39:42 -04002946
2947 err = 0;
2948 b43dbg(dev->wl, "Chip initialized\n");
Michael Buesch21954c32007-09-27 15:31:40 +02002949out:
Michael Buesche4d6b792007-09-18 15:39:42 -04002950 return err;
2951
Larry Finger1a8d1222007-12-14 13:59:11 +01002952err_gpio_clean:
Michael Buesche4d6b792007-09-18 15:39:42 -04002953 b43_gpio_cleanup(dev);
Michael Buesch21954c32007-09-27 15:31:40 +02002954 return err;
Michael Buesche4d6b792007-09-18 15:39:42 -04002955}
2956
Michael Buesche4d6b792007-09-18 15:39:42 -04002957static void b43_periodic_every60sec(struct b43_wldev *dev)
2958{
Michael Bueschef1a6282008-08-27 18:53:02 +02002959 const struct b43_phy_operations *ops = dev->phy.ops;
Michael Buesche4d6b792007-09-18 15:39:42 -04002960
Michael Bueschef1a6282008-08-27 18:53:02 +02002961 if (ops->pwork_60sec)
2962 ops->pwork_60sec(dev);
Michael Buesch18c8ade2008-08-28 19:33:40 +02002963
2964 /* Force check the TX power emission now. */
2965 b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME);
Michael Buesche4d6b792007-09-18 15:39:42 -04002966}
2967
2968static void b43_periodic_every30sec(struct b43_wldev *dev)
2969{
2970 /* Update device statistics. */
2971 b43_calculate_link_quality(dev);
2972}
2973
2974static void b43_periodic_every15sec(struct b43_wldev *dev)
2975{
2976 struct b43_phy *phy = &dev->phy;
Michael Buesch9b839a72008-06-20 17:44:02 +02002977 u16 wdr;
2978
2979 if (dev->fw.opensource) {
2980 /* Check if the firmware is still alive.
2981 * It will reset the watchdog counter to 0 in its idle loop. */
2982 wdr = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_WATCHDOG_REG);
2983 if (unlikely(wdr)) {
2984 b43err(dev->wl, "Firmware watchdog: The firmware died!\n");
2985 b43_controller_restart(dev, "Firmware watchdog");
2986 return;
2987 } else {
2988 b43_shm_write16(dev, B43_SHM_SCRATCH,
2989 B43_WATCHDOG_REG, 1);
2990 }
2991 }
Michael Buesche4d6b792007-09-18 15:39:42 -04002992
Michael Bueschef1a6282008-08-27 18:53:02 +02002993 if (phy->ops->pwork_15sec)
2994 phy->ops->pwork_15sec(dev);
2995
Stefano Brivio00e0b8c2007-11-25 11:10:33 +01002996 atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
2997 wmb();
Michael Buesch990b86f2009-09-12 00:48:03 +02002998
2999#if B43_DEBUG
3000 if (b43_debug(dev, B43_DBG_VERBOSESTATS)) {
3001 unsigned int i;
3002
3003 b43dbg(dev->wl, "Stats: %7u IRQs/sec, %7u TX/sec, %7u RX/sec\n",
3004 dev->irq_count / 15,
3005 dev->tx_count / 15,
3006 dev->rx_count / 15);
3007 dev->irq_count = 0;
3008 dev->tx_count = 0;
3009 dev->rx_count = 0;
3010 for (i = 0; i < ARRAY_SIZE(dev->irq_bit_count); i++) {
3011 if (dev->irq_bit_count[i]) {
3012 b43dbg(dev->wl, "Stats: %7u IRQ-%02u/sec (0x%08X)\n",
3013 dev->irq_bit_count[i] / 15, i, (1 << i));
3014 dev->irq_bit_count[i] = 0;
3015 }
3016 }
3017 }
3018#endif
Michael Buesche4d6b792007-09-18 15:39:42 -04003019}
3020
Michael Buesche4d6b792007-09-18 15:39:42 -04003021static void do_periodic_work(struct b43_wldev *dev)
3022{
3023 unsigned int state;
3024
3025 state = dev->periodic_state;
Michael Buesch42bb4cd2007-09-28 14:22:33 +02003026 if (state % 4 == 0)
Michael Buesche4d6b792007-09-18 15:39:42 -04003027 b43_periodic_every60sec(dev);
Michael Buesch42bb4cd2007-09-28 14:22:33 +02003028 if (state % 2 == 0)
Michael Buesche4d6b792007-09-18 15:39:42 -04003029 b43_periodic_every30sec(dev);
Michael Buesch42bb4cd2007-09-28 14:22:33 +02003030 b43_periodic_every15sec(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04003031}
3032
Michael Buesch05b64b32007-09-28 16:19:03 +02003033/* Periodic work locking policy:
3034 * The whole periodic work handler is protected by
3035 * wl->mutex. If another lock is needed somewhere in the
Uwe Kleine-König21ae2952009-10-07 15:21:09 +02003036 * pwork callchain, it's acquired in-place, where it's needed.
Michael Buesche4d6b792007-09-18 15:39:42 -04003037 */
Michael Buesche4d6b792007-09-18 15:39:42 -04003038static void b43_periodic_work_handler(struct work_struct *work)
3039{
Michael Buesch05b64b32007-09-28 16:19:03 +02003040 struct b43_wldev *dev = container_of(work, struct b43_wldev,
3041 periodic_work.work);
3042 struct b43_wl *wl = dev->wl;
3043 unsigned long delay;
Michael Buesche4d6b792007-09-18 15:39:42 -04003044
Michael Buesch05b64b32007-09-28 16:19:03 +02003045 mutex_lock(&wl->mutex);
Michael Buesche4d6b792007-09-18 15:39:42 -04003046
3047 if (unlikely(b43_status(dev) != B43_STAT_STARTED))
3048 goto out;
3049 if (b43_debug(dev, B43_DBG_PWORK_STOP))
3050 goto out_requeue;
3051
Michael Buesch05b64b32007-09-28 16:19:03 +02003052 do_periodic_work(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04003053
Michael Buesche4d6b792007-09-18 15:39:42 -04003054 dev->periodic_state++;
Michael Buesch42bb4cd2007-09-28 14:22:33 +02003055out_requeue:
Michael Buesche4d6b792007-09-18 15:39:42 -04003056 if (b43_debug(dev, B43_DBG_PWORK_FAST))
3057 delay = msecs_to_jiffies(50);
3058 else
Anton Blanchard82cd6822007-10-15 00:42:23 -05003059 delay = round_jiffies_relative(HZ * 15);
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -04003060 ieee80211_queue_delayed_work(wl->hw, &dev->periodic_work, delay);
Michael Buesch42bb4cd2007-09-28 14:22:33 +02003061out:
Michael Buesch05b64b32007-09-28 16:19:03 +02003062 mutex_unlock(&wl->mutex);
Michael Buesche4d6b792007-09-18 15:39:42 -04003063}
3064
3065static void b43_periodic_tasks_setup(struct b43_wldev *dev)
3066{
3067 struct delayed_work *work = &dev->periodic_work;
3068
3069 dev->periodic_state = 0;
3070 INIT_DELAYED_WORK(work, b43_periodic_work_handler);
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -04003071 ieee80211_queue_delayed_work(dev->wl->hw, work, 0);
Michael Buesche4d6b792007-09-18 15:39:42 -04003072}
3073
Michael Bueschf3dd3fc2007-12-22 21:56:30 +01003074/* Check if communication with the device works correctly. */
Michael Buesche4d6b792007-09-18 15:39:42 -04003075static int b43_validate_chipaccess(struct b43_wldev *dev)
3076{
Michael Bueschf62ae6c2009-07-31 20:51:41 +02003077 u32 v, backup0, backup4;
Michael Buesche4d6b792007-09-18 15:39:42 -04003078
Michael Bueschf62ae6c2009-07-31 20:51:41 +02003079 backup0 = b43_shm_read32(dev, B43_SHM_SHARED, 0);
3080 backup4 = b43_shm_read32(dev, B43_SHM_SHARED, 4);
Michael Bueschf3dd3fc2007-12-22 21:56:30 +01003081
3082 /* Check for read/write and endianness problems. */
Michael Buesche4d6b792007-09-18 15:39:42 -04003083 b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55);
3084 if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55)
3085 goto error;
Michael Bueschf3dd3fc2007-12-22 21:56:30 +01003086 b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA);
3087 if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA)
Michael Buesche4d6b792007-09-18 15:39:42 -04003088 goto error;
3089
Michael Bueschf62ae6c2009-07-31 20:51:41 +02003090 /* Check if unaligned 32bit SHM_SHARED access works properly.
3091 * However, don't bail out on failure, because it's noncritical. */
3092 b43_shm_write16(dev, B43_SHM_SHARED, 0, 0x1122);
3093 b43_shm_write16(dev, B43_SHM_SHARED, 2, 0x3344);
3094 b43_shm_write16(dev, B43_SHM_SHARED, 4, 0x5566);
3095 b43_shm_write16(dev, B43_SHM_SHARED, 6, 0x7788);
3096 if (b43_shm_read32(dev, B43_SHM_SHARED, 2) != 0x55663344)
3097 b43warn(dev->wl, "Unaligned 32bit SHM read access is broken\n");
3098 b43_shm_write32(dev, B43_SHM_SHARED, 2, 0xAABBCCDD);
3099 if (b43_shm_read16(dev, B43_SHM_SHARED, 0) != 0x1122 ||
3100 b43_shm_read16(dev, B43_SHM_SHARED, 2) != 0xCCDD ||
3101 b43_shm_read16(dev, B43_SHM_SHARED, 4) != 0xAABB ||
3102 b43_shm_read16(dev, B43_SHM_SHARED, 6) != 0x7788)
3103 b43warn(dev->wl, "Unaligned 32bit SHM write access is broken\n");
3104
3105 b43_shm_write32(dev, B43_SHM_SHARED, 0, backup0);
3106 b43_shm_write32(dev, B43_SHM_SHARED, 4, backup4);
Michael Bueschf3dd3fc2007-12-22 21:56:30 +01003107
Rafał Miłecki21d889d2011-05-18 02:06:38 +02003108 if ((dev->dev->core_rev >= 3) && (dev->dev->core_rev <= 10)) {
Michael Bueschf3dd3fc2007-12-22 21:56:30 +01003109 /* The 32bit register shadows the two 16bit registers
3110 * with update sideeffects. Validate this. */
3111 b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA);
3112 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB);
3113 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB)
3114 goto error;
3115 if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC)
3116 goto error;
3117 }
3118 b43_write32(dev, B43_MMIO_TSF_CFP_START, 0);
3119
3120 v = b43_read32(dev, B43_MMIO_MACCTL);
3121 v |= B43_MACCTL_GMODE;
3122 if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED))
Michael Buesche4d6b792007-09-18 15:39:42 -04003123 goto error;
3124
3125 return 0;
Michael Bueschf3dd3fc2007-12-22 21:56:30 +01003126error:
Michael Buesche4d6b792007-09-18 15:39:42 -04003127 b43err(dev->wl, "Failed to validate the chipaccess\n");
3128 return -ENODEV;
3129}
3130
3131static void b43_security_init(struct b43_wldev *dev)
3132{
Michael Buesche4d6b792007-09-18 15:39:42 -04003133 dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP);
3134 /* KTP is a word address, but we address SHM bytewise.
3135 * So multiply by two.
3136 */
3137 dev->ktp *= 2;
Michael Buesch66d2d082009-08-06 10:36:50 +02003138 /* Number of RCMTA address slots */
3139 b43_write16(dev, B43_MMIO_RCMTA_COUNT, B43_NR_PAIRWISE_KEYS);
3140 /* Clear the key memory. */
Michael Buesche4d6b792007-09-18 15:39:42 -04003141 b43_clear_keys(dev);
3142}
3143
Michael Buesch616de352009-03-29 13:19:31 +02003144#ifdef CONFIG_B43_HWRNG
John Daiker99da1852009-02-24 02:16:42 -08003145static int b43_rng_read(struct hwrng *rng, u32 *data)
Michael Buesche4d6b792007-09-18 15:39:42 -04003146{
3147 struct b43_wl *wl = (struct b43_wl *)rng->priv;
Michael Buescha78b3bb2009-09-11 21:44:05 +02003148 struct b43_wldev *dev;
3149 int count = -ENODEV;
Michael Buesche4d6b792007-09-18 15:39:42 -04003150
Michael Buescha78b3bb2009-09-11 21:44:05 +02003151 mutex_lock(&wl->mutex);
3152 dev = wl->current_dev;
3153 if (likely(dev && b43_status(dev) >= B43_STAT_INITIALIZED)) {
3154 *data = b43_read16(dev, B43_MMIO_RNG);
3155 count = sizeof(u16);
3156 }
3157 mutex_unlock(&wl->mutex);
Michael Buesche4d6b792007-09-18 15:39:42 -04003158
Michael Buescha78b3bb2009-09-11 21:44:05 +02003159 return count;
Michael Buesche4d6b792007-09-18 15:39:42 -04003160}
Michael Buesch616de352009-03-29 13:19:31 +02003161#endif /* CONFIG_B43_HWRNG */
Michael Buesche4d6b792007-09-18 15:39:42 -04003162
Rafael J. Wysockib844eba2008-03-23 20:28:24 +01003163static void b43_rng_exit(struct b43_wl *wl)
Michael Buesche4d6b792007-09-18 15:39:42 -04003164{
Michael Buesch616de352009-03-29 13:19:31 +02003165#ifdef CONFIG_B43_HWRNG
Michael Buesche4d6b792007-09-18 15:39:42 -04003166 if (wl->rng_initialized)
Rafael J. Wysockib844eba2008-03-23 20:28:24 +01003167 hwrng_unregister(&wl->rng);
Michael Buesch616de352009-03-29 13:19:31 +02003168#endif /* CONFIG_B43_HWRNG */
Michael Buesche4d6b792007-09-18 15:39:42 -04003169}
3170
3171static int b43_rng_init(struct b43_wl *wl)
3172{
Michael Buesch616de352009-03-29 13:19:31 +02003173 int err = 0;
Michael Buesche4d6b792007-09-18 15:39:42 -04003174
Michael Buesch616de352009-03-29 13:19:31 +02003175#ifdef CONFIG_B43_HWRNG
Michael Buesche4d6b792007-09-18 15:39:42 -04003176 snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name),
3177 "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy));
3178 wl->rng.name = wl->rng_name;
3179 wl->rng.data_read = b43_rng_read;
3180 wl->rng.priv = (unsigned long)wl;
3181 wl->rng_initialized = 1;
3182 err = hwrng_register(&wl->rng);
3183 if (err) {
3184 wl->rng_initialized = 0;
3185 b43err(wl, "Failed to register the random "
3186 "number generator (%d)\n", err);
3187 }
Michael Buesch616de352009-03-29 13:19:31 +02003188#endif /* CONFIG_B43_HWRNG */
Michael Buesche4d6b792007-09-18 15:39:42 -04003189
3190 return err;
3191}
3192
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003193static void b43_tx_work(struct work_struct *work)
Michael Buesche4d6b792007-09-18 15:39:42 -04003194{
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003195 struct b43_wl *wl = container_of(work, struct b43_wl, tx_work);
3196 struct b43_wldev *dev;
3197 struct sk_buff *skb;
3198 int err = 0;
Michael Buesche4d6b792007-09-18 15:39:42 -04003199
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003200 mutex_lock(&wl->mutex);
3201 dev = wl->current_dev;
3202 if (unlikely(!dev || b43_status(dev) < B43_STAT_STARTED)) {
3203 mutex_unlock(&wl->mutex);
3204 return;
Michael Buesch5100d5a2008-03-29 21:01:16 +01003205 }
Michael Buesch21a75d72008-04-25 19:29:08 +02003206
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003207 while (skb_queue_len(&wl->tx_queue)) {
3208 skb = skb_dequeue(&wl->tx_queue);
Michael Buesch21a75d72008-04-25 19:29:08 +02003209
Michael Buesch21a75d72008-04-25 19:29:08 +02003210 if (b43_using_pio_transfers(dev))
Johannes Berge039fa42008-05-15 12:55:29 +02003211 err = b43_pio_tx(dev, skb);
Michael Buesch21a75d72008-04-25 19:29:08 +02003212 else
Johannes Berge039fa42008-05-15 12:55:29 +02003213 err = b43_dma_tx(dev, skb);
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003214 if (unlikely(err))
3215 dev_kfree_skb(skb); /* Drop it */
Michael Buesch21a75d72008-04-25 19:29:08 +02003216 }
3217
Michael Buesch990b86f2009-09-12 00:48:03 +02003218#if B43_DEBUG
3219 dev->tx_count++;
3220#endif
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003221 mutex_unlock(&wl->mutex);
3222}
Michael Buesch21a75d72008-04-25 19:29:08 +02003223
Johannes Berg7bb45682011-02-24 14:42:06 +01003224static void b43_op_tx(struct ieee80211_hw *hw,
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003225 struct sk_buff *skb)
3226{
3227 struct b43_wl *wl = hw_to_b43_wl(hw);
Michael Bueschc9e8eae2008-06-15 15:17:29 +02003228
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003229 if (unlikely(skb->len < 2 + 2 + 6)) {
3230 /* Too short, this can't be a valid frame. */
3231 dev_kfree_skb_any(skb);
Johannes Berg7bb45682011-02-24 14:42:06 +01003232 return;
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003233 }
3234 B43_WARN_ON(skb_shinfo(skb)->nr_frags);
3235
3236 skb_queue_tail(&wl->tx_queue, skb);
3237 ieee80211_queue_work(wl->hw, &wl->tx_work);
Michael Buesche4d6b792007-09-18 15:39:42 -04003238}
3239
Michael Buesche6f5b932008-03-05 21:18:49 +01003240static void b43_qos_params_upload(struct b43_wldev *dev,
3241 const struct ieee80211_tx_queue_params *p,
3242 u16 shm_offset)
3243{
3244 u16 params[B43_NR_QOSPARAMS];
Johannes Berg0b576642008-07-15 02:08:24 -07003245 int bslots, tmp;
Michael Buesche6f5b932008-03-05 21:18:49 +01003246 unsigned int i;
3247
Michael Bueschb0544eb2009-09-06 15:42:45 +02003248 if (!dev->qos_enabled)
3249 return;
3250
Johannes Berg0b576642008-07-15 02:08:24 -07003251 bslots = b43_read16(dev, B43_MMIO_RNG) & p->cw_min;
Michael Buesche6f5b932008-03-05 21:18:49 +01003252
3253 memset(&params, 0, sizeof(params));
3254
3255 params[B43_QOSPARAM_TXOP] = p->txop * 32;
Johannes Berg0b576642008-07-15 02:08:24 -07003256 params[B43_QOSPARAM_CWMIN] = p->cw_min;
3257 params[B43_QOSPARAM_CWMAX] = p->cw_max;
3258 params[B43_QOSPARAM_CWCUR] = p->cw_min;
3259 params[B43_QOSPARAM_AIFS] = p->aifs;
Michael Buesche6f5b932008-03-05 21:18:49 +01003260 params[B43_QOSPARAM_BSLOTS] = bslots;
Johannes Berg0b576642008-07-15 02:08:24 -07003261 params[B43_QOSPARAM_REGGAP] = bslots + p->aifs;
Michael Buesche6f5b932008-03-05 21:18:49 +01003262
3263 for (i = 0; i < ARRAY_SIZE(params); i++) {
3264 if (i == B43_QOSPARAM_STATUS) {
3265 tmp = b43_shm_read16(dev, B43_SHM_SHARED,
3266 shm_offset + (i * 2));
3267 /* Mark the parameters as updated. */
3268 tmp |= 0x100;
3269 b43_shm_write16(dev, B43_SHM_SHARED,
3270 shm_offset + (i * 2),
3271 tmp);
3272 } else {
3273 b43_shm_write16(dev, B43_SHM_SHARED,
3274 shm_offset + (i * 2),
3275 params[i]);
3276 }
3277 }
3278}
3279
Michael Bueschc40c1122008-09-06 16:21:47 +02003280/* Mapping of mac80211 queue numbers to b43 QoS SHM offsets. */
3281static const u16 b43_qos_shm_offsets[] = {
3282 /* [mac80211-queue-nr] = SHM_OFFSET, */
3283 [0] = B43_QOS_VOICE,
3284 [1] = B43_QOS_VIDEO,
3285 [2] = B43_QOS_BESTEFFORT,
3286 [3] = B43_QOS_BACKGROUND,
3287};
3288
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003289/* Update all QOS parameters in hardware. */
3290static void b43_qos_upload_all(struct b43_wldev *dev)
Michael Buesche6f5b932008-03-05 21:18:49 +01003291{
3292 struct b43_wl *wl = dev->wl;
3293 struct b43_qos_params *params;
Michael Buesche6f5b932008-03-05 21:18:49 +01003294 unsigned int i;
3295
Michael Bueschb0544eb2009-09-06 15:42:45 +02003296 if (!dev->qos_enabled)
3297 return;
3298
Michael Bueschc40c1122008-09-06 16:21:47 +02003299 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
3300 ARRAY_SIZE(wl->qos_params));
Michael Buesche6f5b932008-03-05 21:18:49 +01003301
3302 b43_mac_suspend(dev);
Michael Buesche6f5b932008-03-05 21:18:49 +01003303 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
3304 params = &(wl->qos_params[i]);
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003305 b43_qos_params_upload(dev, &(params->p),
3306 b43_qos_shm_offsets[i]);
Michael Buesche6f5b932008-03-05 21:18:49 +01003307 }
Michael Buesche6f5b932008-03-05 21:18:49 +01003308 b43_mac_enable(dev);
3309}
3310
3311static void b43_qos_clear(struct b43_wl *wl)
3312{
3313 struct b43_qos_params *params;
3314 unsigned int i;
3315
Michael Bueschc40c1122008-09-06 16:21:47 +02003316 /* Initialize QoS parameters to sane defaults. */
3317
3318 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
3319 ARRAY_SIZE(wl->qos_params));
3320
Michael Buesche6f5b932008-03-05 21:18:49 +01003321 for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) {
3322 params = &(wl->qos_params[i]);
3323
Michael Bueschc40c1122008-09-06 16:21:47 +02003324 switch (b43_qos_shm_offsets[i]) {
3325 case B43_QOS_VOICE:
3326 params->p.txop = 0;
3327 params->p.aifs = 2;
3328 params->p.cw_min = 0x0001;
3329 params->p.cw_max = 0x0001;
3330 break;
3331 case B43_QOS_VIDEO:
3332 params->p.txop = 0;
3333 params->p.aifs = 2;
3334 params->p.cw_min = 0x0001;
3335 params->p.cw_max = 0x0001;
3336 break;
3337 case B43_QOS_BESTEFFORT:
3338 params->p.txop = 0;
3339 params->p.aifs = 3;
3340 params->p.cw_min = 0x0001;
3341 params->p.cw_max = 0x03FF;
3342 break;
3343 case B43_QOS_BACKGROUND:
3344 params->p.txop = 0;
3345 params->p.aifs = 7;
3346 params->p.cw_min = 0x0001;
3347 params->p.cw_max = 0x03FF;
3348 break;
3349 default:
3350 B43_WARN_ON(1);
3351 }
Michael Buesche6f5b932008-03-05 21:18:49 +01003352 }
3353}
3354
3355/* Initialize the core's QOS capabilities */
3356static void b43_qos_init(struct b43_wldev *dev)
3357{
Michael Bueschb0544eb2009-09-06 15:42:45 +02003358 if (!dev->qos_enabled) {
3359 /* Disable QOS support. */
3360 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_EDCF);
3361 b43_write16(dev, B43_MMIO_IFSCTL,
3362 b43_read16(dev, B43_MMIO_IFSCTL)
3363 & ~B43_MMIO_IFSCTL_USE_EDCF);
3364 b43dbg(dev->wl, "QoS disabled\n");
3365 return;
3366 }
3367
Michael Buesche6f5b932008-03-05 21:18:49 +01003368 /* Upload the current QOS parameters. */
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003369 b43_qos_upload_all(dev);
Michael Buesche6f5b932008-03-05 21:18:49 +01003370
3371 /* Enable QOS support. */
3372 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF);
3373 b43_write16(dev, B43_MMIO_IFSCTL,
3374 b43_read16(dev, B43_MMIO_IFSCTL)
3375 | B43_MMIO_IFSCTL_USE_EDCF);
Michael Bueschb0544eb2009-09-06 15:42:45 +02003376 b43dbg(dev->wl, "QoS enabled\n");
Michael Buesche6f5b932008-03-05 21:18:49 +01003377}
3378
Johannes Berge100bb62008-04-30 18:51:21 +02003379static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue,
Michael Buesch40faacc2007-10-28 16:29:32 +01003380 const struct ieee80211_tx_queue_params *params)
Michael Buesche4d6b792007-09-18 15:39:42 -04003381{
Michael Buesche6f5b932008-03-05 21:18:49 +01003382 struct b43_wl *wl = hw_to_b43_wl(hw);
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003383 struct b43_wldev *dev;
Michael Buesche6f5b932008-03-05 21:18:49 +01003384 unsigned int queue = (unsigned int)_queue;
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003385 int err = -ENODEV;
Michael Buesche6f5b932008-03-05 21:18:49 +01003386
3387 if (queue >= ARRAY_SIZE(wl->qos_params)) {
3388 /* Queue not available or don't support setting
3389 * params on this queue. Return success to not
3390 * confuse mac80211. */
3391 return 0;
3392 }
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003393 BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) !=
3394 ARRAY_SIZE(wl->qos_params));
Michael Buesche6f5b932008-03-05 21:18:49 +01003395
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003396 mutex_lock(&wl->mutex);
3397 dev = wl->current_dev;
3398 if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED)))
3399 goto out_unlock;
Michael Buesche6f5b932008-03-05 21:18:49 +01003400
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003401 memcpy(&(wl->qos_params[queue].p), params, sizeof(*params));
3402 b43_mac_suspend(dev);
3403 b43_qos_params_upload(dev, &(wl->qos_params[queue].p),
3404 b43_qos_shm_offsets[queue]);
3405 b43_mac_enable(dev);
3406 err = 0;
Michael Buesche6f5b932008-03-05 21:18:49 +01003407
Michael Buesch5a5f3b42008-09-06 20:07:31 +02003408out_unlock:
3409 mutex_unlock(&wl->mutex);
3410
3411 return err;
Michael Buesche4d6b792007-09-18 15:39:42 -04003412}
3413
Michael Buesch40faacc2007-10-28 16:29:32 +01003414static int b43_op_get_stats(struct ieee80211_hw *hw,
3415 struct ieee80211_low_level_stats *stats)
Michael Buesche4d6b792007-09-18 15:39:42 -04003416{
3417 struct b43_wl *wl = hw_to_b43_wl(hw);
Michael Buesche4d6b792007-09-18 15:39:42 -04003418
Michael Buesch36dbd952009-09-04 22:51:29 +02003419 mutex_lock(&wl->mutex);
Michael Buesche4d6b792007-09-18 15:39:42 -04003420 memcpy(stats, &wl->ieee_stats, sizeof(*stats));
Michael Buesch36dbd952009-09-04 22:51:29 +02003421 mutex_unlock(&wl->mutex);
Michael Buesche4d6b792007-09-18 15:39:42 -04003422
3423 return 0;
3424}
3425
Alina Friedrichsen08e87a82009-01-25 15:28:28 +01003426static u64 b43_op_get_tsf(struct ieee80211_hw *hw)
3427{
3428 struct b43_wl *wl = hw_to_b43_wl(hw);
3429 struct b43_wldev *dev;
3430 u64 tsf;
3431
3432 mutex_lock(&wl->mutex);
Alina Friedrichsen08e87a82009-01-25 15:28:28 +01003433 dev = wl->current_dev;
3434
3435 if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED))
3436 b43_tsf_read(dev, &tsf);
3437 else
3438 tsf = 0;
3439
Alina Friedrichsen08e87a82009-01-25 15:28:28 +01003440 mutex_unlock(&wl->mutex);
3441
3442 return tsf;
3443}
3444
3445static void b43_op_set_tsf(struct ieee80211_hw *hw, u64 tsf)
3446{
3447 struct b43_wl *wl = hw_to_b43_wl(hw);
3448 struct b43_wldev *dev;
3449
3450 mutex_lock(&wl->mutex);
Alina Friedrichsen08e87a82009-01-25 15:28:28 +01003451 dev = wl->current_dev;
3452
3453 if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED))
3454 b43_tsf_write(dev, tsf);
3455
Alina Friedrichsen08e87a82009-01-25 15:28:28 +01003456 mutex_unlock(&wl->mutex);
3457}
3458
Michael Buesche4d6b792007-09-18 15:39:42 -04003459static void b43_put_phy_into_reset(struct b43_wldev *dev)
3460{
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02003461 struct ssb_device *sdev = dev->sdev;
Michael Buesche4d6b792007-09-18 15:39:42 -04003462 u32 tmslow;
3463
3464 tmslow = ssb_read32(sdev, SSB_TMSLOW);
3465 tmslow &= ~B43_TMSLOW_GMODE;
3466 tmslow |= B43_TMSLOW_PHYRESET;
3467 tmslow |= SSB_TMSLOW_FGC;
3468 ssb_write32(sdev, SSB_TMSLOW, tmslow);
3469 msleep(1);
3470
3471 tmslow = ssb_read32(sdev, SSB_TMSLOW);
3472 tmslow &= ~SSB_TMSLOW_FGC;
3473 tmslow |= B43_TMSLOW_PHYRESET;
3474 ssb_write32(sdev, SSB_TMSLOW, tmslow);
3475 msleep(1);
3476}
3477
John Daiker99da1852009-02-24 02:16:42 -08003478static const char *band_to_string(enum ieee80211_band band)
Michael Buesche4d6b792007-09-18 15:39:42 -04003479{
Michael Bueschbb1eeff2008-02-09 12:08:58 +01003480 switch (band) {
3481 case IEEE80211_BAND_5GHZ:
3482 return "5";
3483 case IEEE80211_BAND_2GHZ:
3484 return "2.4";
3485 default:
3486 break;
3487 }
3488 B43_WARN_ON(1);
3489 return "";
3490}
3491
3492/* Expects wl->mutex locked */
3493static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan)
3494{
3495 struct b43_wldev *up_dev = NULL;
Michael Buesche4d6b792007-09-18 15:39:42 -04003496 struct b43_wldev *down_dev;
Michael Bueschbb1eeff2008-02-09 12:08:58 +01003497 struct b43_wldev *d;
Michael Buesche4d6b792007-09-18 15:39:42 -04003498 int err;
John W. Linville922d8a02009-01-12 14:40:20 -05003499 bool uninitialized_var(gmode);
Michael Buesche4d6b792007-09-18 15:39:42 -04003500 int prev_status;
3501
Michael Bueschbb1eeff2008-02-09 12:08:58 +01003502 /* Find a device and PHY which supports the band. */
3503 list_for_each_entry(d, &wl->devlist, list) {
3504 switch (chan->band) {
3505 case IEEE80211_BAND_5GHZ:
3506 if (d->phy.supports_5ghz) {
3507 up_dev = d;
3508 gmode = 0;
3509 }
3510 break;
3511 case IEEE80211_BAND_2GHZ:
3512 if (d->phy.supports_2ghz) {
3513 up_dev = d;
3514 gmode = 1;
3515 }
3516 break;
3517 default:
3518 B43_WARN_ON(1);
3519 return -EINVAL;
3520 }
3521 if (up_dev)
3522 break;
3523 }
3524 if (!up_dev) {
3525 b43err(wl, "Could not find a device for %s-GHz band operation\n",
3526 band_to_string(chan->band));
3527 return -ENODEV;
Michael Buesche4d6b792007-09-18 15:39:42 -04003528 }
3529 if ((up_dev == wl->current_dev) &&
3530 (!!wl->current_dev->phy.gmode == !!gmode)) {
3531 /* This device is already running. */
3532 return 0;
3533 }
Michael Bueschbb1eeff2008-02-09 12:08:58 +01003534 b43dbg(wl, "Switching to %s-GHz band\n",
3535 band_to_string(chan->band));
Michael Buesche4d6b792007-09-18 15:39:42 -04003536 down_dev = wl->current_dev;
3537
3538 prev_status = b43_status(down_dev);
3539 /* Shutdown the currently running core. */
3540 if (prev_status >= B43_STAT_STARTED)
Michael Buesch36dbd952009-09-04 22:51:29 +02003541 down_dev = b43_wireless_core_stop(down_dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04003542 if (prev_status >= B43_STAT_INITIALIZED)
3543 b43_wireless_core_exit(down_dev);
3544
3545 if (down_dev != up_dev) {
3546 /* We switch to a different core, so we put PHY into
3547 * RESET on the old core. */
3548 b43_put_phy_into_reset(down_dev);
3549 }
3550
3551 /* Now start the new core. */
3552 up_dev->phy.gmode = gmode;
3553 if (prev_status >= B43_STAT_INITIALIZED) {
3554 err = b43_wireless_core_init(up_dev);
3555 if (err) {
3556 b43err(wl, "Fatal: Could not initialize device for "
Michael Bueschbb1eeff2008-02-09 12:08:58 +01003557 "selected %s-GHz band\n",
3558 band_to_string(chan->band));
Michael Buesche4d6b792007-09-18 15:39:42 -04003559 goto init_failure;
3560 }
3561 }
3562 if (prev_status >= B43_STAT_STARTED) {
3563 err = b43_wireless_core_start(up_dev);
3564 if (err) {
3565 b43err(wl, "Fatal: Coult not start device for "
Michael Bueschbb1eeff2008-02-09 12:08:58 +01003566 "selected %s-GHz band\n",
3567 band_to_string(chan->band));
Michael Buesche4d6b792007-09-18 15:39:42 -04003568 b43_wireless_core_exit(up_dev);
3569 goto init_failure;
3570 }
3571 }
3572 B43_WARN_ON(b43_status(up_dev) != prev_status);
3573
3574 wl->current_dev = up_dev;
3575
3576 return 0;
Michael Bueschbb1eeff2008-02-09 12:08:58 +01003577init_failure:
Michael Buesche4d6b792007-09-18 15:39:42 -04003578 /* Whoops, failed to init the new core. No core is operating now. */
3579 wl->current_dev = NULL;
3580 return err;
3581}
3582
Johannes Berg9124b072008-10-14 19:17:54 +02003583/* Write the short and long frame retry limit values. */
3584static void b43_set_retry_limits(struct b43_wldev *dev,
3585 unsigned int short_retry,
3586 unsigned int long_retry)
3587{
3588 /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing
3589 * the chip-internal counter. */
3590 short_retry = min(short_retry, (unsigned int)0xF);
3591 long_retry = min(long_retry, (unsigned int)0xF);
3592
3593 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT,
3594 short_retry);
3595 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT,
3596 long_retry);
3597}
3598
Johannes Berge8975582008-10-09 12:18:51 +02003599static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
Michael Buesche4d6b792007-09-18 15:39:42 -04003600{
3601 struct b43_wl *wl = hw_to_b43_wl(hw);
3602 struct b43_wldev *dev;
3603 struct b43_phy *phy;
Johannes Berge8975582008-10-09 12:18:51 +02003604 struct ieee80211_conf *conf = &hw->conf;
Michael Buesch9db1f6d2007-12-22 21:54:20 +01003605 int antenna;
Michael Buesche4d6b792007-09-18 15:39:42 -04003606 int err = 0;
Michael Buesche4d6b792007-09-18 15:39:42 -04003607
Michael Buesche4d6b792007-09-18 15:39:42 -04003608 mutex_lock(&wl->mutex);
3609
Michael Bueschbb1eeff2008-02-09 12:08:58 +01003610 /* Switch the band (if necessary). This might change the active core. */
3611 err = b43_switch_band(wl, conf->channel);
Michael Buesche4d6b792007-09-18 15:39:42 -04003612 if (err)
3613 goto out_unlock_mutex;
3614 dev = wl->current_dev;
3615 phy = &dev->phy;
3616
Rafał Miłeckiaa4c7b22010-01-22 01:53:12 +01003617 if (conf_is_ht(conf))
3618 phy->is_40mhz =
3619 (conf_is_ht40_minus(conf) || conf_is_ht40_plus(conf));
3620 else
3621 phy->is_40mhz = false;
3622
Michael Bueschd10d0e52008-12-18 22:13:39 +01003623 b43_mac_suspend(dev);
3624
Johannes Berg9124b072008-10-14 19:17:54 +02003625 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
3626 b43_set_retry_limits(dev, conf->short_frame_max_tx_count,
3627 conf->long_frame_max_tx_count);
3628 changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS;
3629 if (!changed)
Michael Bueschd10d0e52008-12-18 22:13:39 +01003630 goto out_mac_enable;
Michael Buesche4d6b792007-09-18 15:39:42 -04003631
3632 /* Switch to the requested channel.
3633 * The firmware takes care of races with the TX handler. */
Johannes Berg8318d782008-01-24 19:38:38 +01003634 if (conf->channel->hw_value != phy->channel)
Michael Bueschef1a6282008-08-27 18:53:02 +02003635 b43_switch_channel(dev, conf->channel->hw_value);
Michael Buesche4d6b792007-09-18 15:39:42 -04003636
Johannes Berg0869aea2009-10-28 10:03:35 +01003637 dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_MONITOR);
Johannes Bergd42ce842007-11-23 14:50:51 +01003638
Michael Buesche4d6b792007-09-18 15:39:42 -04003639 /* Adjust the desired TX power level. */
3640 if (conf->power_level != 0) {
Michael Buesch18c8ade2008-08-28 19:33:40 +02003641 if (conf->power_level != phy->desired_txpower) {
3642 phy->desired_txpower = conf->power_level;
3643 b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME |
3644 B43_TXPWR_IGNORE_TSSI);
Michael Buesche4d6b792007-09-18 15:39:42 -04003645 }
3646 }
3647
3648 /* Antennas for RX and management frame TX. */
Johannes Berg0f4ac382008-10-09 12:18:04 +02003649 antenna = B43_ANTENNA_DEFAULT;
Michael Buesch9db1f6d2007-12-22 21:54:20 +01003650 b43_mgmtframe_txantenna(dev, antenna);
Johannes Berg0f4ac382008-10-09 12:18:04 +02003651 antenna = B43_ANTENNA_DEFAULT;
Michael Bueschef1a6282008-08-27 18:53:02 +02003652 if (phy->ops->set_rx_antenna)
3653 phy->ops->set_rx_antenna(dev, antenna);
Michael Buesche4d6b792007-09-18 15:39:42 -04003654
Larry Fingerfd4973c2009-06-20 12:58:11 -05003655 if (wl->radio_enabled != phy->radio_on) {
3656 if (wl->radio_enabled) {
Johannes Berg19d337d2009-06-02 13:01:37 +02003657 b43_software_rfkill(dev, false);
Michael Bueschfda9abc2007-09-20 22:14:18 +02003658 b43info(dev->wl, "Radio turned on by software\n");
3659 if (!dev->radio_hw_enable) {
3660 b43info(dev->wl, "The hardware RF-kill button "
3661 "still turns the radio physically off. "
3662 "Press the button to turn it on.\n");
3663 }
3664 } else {
Johannes Berg19d337d2009-06-02 13:01:37 +02003665 b43_software_rfkill(dev, true);
Michael Bueschfda9abc2007-09-20 22:14:18 +02003666 b43info(dev->wl, "Radio turned off by software\n");
3667 }
3668 }
3669
Michael Bueschd10d0e52008-12-18 22:13:39 +01003670out_mac_enable:
3671 b43_mac_enable(dev);
3672out_unlock_mutex:
Michael Buesche4d6b792007-09-18 15:39:42 -04003673 mutex_unlock(&wl->mutex);
3674
3675 return err;
3676}
3677
Johannes Berg881d9482009-01-21 15:13:48 +01003678static void b43_update_basic_rates(struct b43_wldev *dev, u32 brates)
Johannes Bergc7ab5ef2008-10-29 20:02:12 +01003679{
3680 struct ieee80211_supported_band *sband =
3681 dev->wl->hw->wiphy->bands[b43_current_band(dev->wl)];
3682 struct ieee80211_rate *rate;
3683 int i;
3684 u16 basic, direct, offset, basic_offset, rateptr;
3685
3686 for (i = 0; i < sband->n_bitrates; i++) {
3687 rate = &sband->bitrates[i];
3688
3689 if (b43_is_cck_rate(rate->hw_value)) {
3690 direct = B43_SHM_SH_CCKDIRECT;
3691 basic = B43_SHM_SH_CCKBASIC;
3692 offset = b43_plcp_get_ratecode_cck(rate->hw_value);
3693 offset &= 0xF;
3694 } else {
3695 direct = B43_SHM_SH_OFDMDIRECT;
3696 basic = B43_SHM_SH_OFDMBASIC;
3697 offset = b43_plcp_get_ratecode_ofdm(rate->hw_value);
3698 offset &= 0xF;
3699 }
3700
3701 rate = ieee80211_get_response_rate(sband, brates, rate->bitrate);
3702
3703 if (b43_is_cck_rate(rate->hw_value)) {
3704 basic_offset = b43_plcp_get_ratecode_cck(rate->hw_value);
3705 basic_offset &= 0xF;
3706 } else {
3707 basic_offset = b43_plcp_get_ratecode_ofdm(rate->hw_value);
3708 basic_offset &= 0xF;
3709 }
3710
3711 /*
3712 * Get the pointer that we need to point to
3713 * from the direct map
3714 */
3715 rateptr = b43_shm_read16(dev, B43_SHM_SHARED,
3716 direct + 2 * basic_offset);
3717 /* and write it to the basic map */
3718 b43_shm_write16(dev, B43_SHM_SHARED, basic + 2 * offset,
3719 rateptr);
3720 }
3721}
3722
3723static void b43_op_bss_info_changed(struct ieee80211_hw *hw,
3724 struct ieee80211_vif *vif,
3725 struct ieee80211_bss_conf *conf,
3726 u32 changed)
3727{
3728 struct b43_wl *wl = hw_to_b43_wl(hw);
3729 struct b43_wldev *dev;
Johannes Bergc7ab5ef2008-10-29 20:02:12 +01003730
3731 mutex_lock(&wl->mutex);
3732
3733 dev = wl->current_dev;
Michael Bueschd10d0e52008-12-18 22:13:39 +01003734 if (!dev || b43_status(dev) < B43_STAT_STARTED)
Johannes Bergc7ab5ef2008-10-29 20:02:12 +01003735 goto out_unlock_mutex;
Johannes Berg2d0ddec2009-04-23 16:13:26 +02003736
3737 B43_WARN_ON(wl->vif != vif);
3738
3739 if (changed & BSS_CHANGED_BSSID) {
Johannes Berg2d0ddec2009-04-23 16:13:26 +02003740 if (conf->bssid)
3741 memcpy(wl->bssid, conf->bssid, ETH_ALEN);
3742 else
3743 memset(wl->bssid, 0, ETH_ALEN);
Johannes Berg2d0ddec2009-04-23 16:13:26 +02003744 }
3745
Johannes Berg3f0d8432009-05-18 10:53:18 +02003746 if (b43_status(dev) >= B43_STAT_INITIALIZED) {
3747 if (changed & BSS_CHANGED_BEACON &&
3748 (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
3749 b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) ||
3750 b43_is_mode(wl, NL80211_IFTYPE_ADHOC)))
3751 b43_update_templates(wl);
3752
3753 if (changed & BSS_CHANGED_BSSID)
3754 b43_write_mac_bssid_templates(dev);
3755 }
Johannes Berg3f0d8432009-05-18 10:53:18 +02003756
Johannes Bergc7ab5ef2008-10-29 20:02:12 +01003757 b43_mac_suspend(dev);
3758
Johannes Berg57c4d7b2009-04-23 16:10:04 +02003759 /* Update templates for AP/mesh mode. */
3760 if (changed & BSS_CHANGED_BEACON_INT &&
3761 (b43_is_mode(wl, NL80211_IFTYPE_AP) ||
3762 b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) ||
3763 b43_is_mode(wl, NL80211_IFTYPE_ADHOC)))
3764 b43_set_beacon_int(dev, conf->beacon_int);
3765
Johannes Bergc7ab5ef2008-10-29 20:02:12 +01003766 if (changed & BSS_CHANGED_BASIC_RATES)
3767 b43_update_basic_rates(dev, conf->basic_rates);
3768
3769 if (changed & BSS_CHANGED_ERP_SLOT) {
3770 if (conf->use_short_slot)
3771 b43_short_slot_timing_enable(dev);
3772 else
3773 b43_short_slot_timing_disable(dev);
3774 }
3775
3776 b43_mac_enable(dev);
Michael Bueschd10d0e52008-12-18 22:13:39 +01003777out_unlock_mutex:
Johannes Bergc7ab5ef2008-10-29 20:02:12 +01003778 mutex_unlock(&wl->mutex);
Johannes Bergc7ab5ef2008-10-29 20:02:12 +01003779}
3780
Michael Buesch40faacc2007-10-28 16:29:32 +01003781static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
Johannes Bergdc822b52008-12-29 12:55:09 +01003782 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
3783 struct ieee80211_key_conf *key)
Michael Buesche4d6b792007-09-18 15:39:42 -04003784{
3785 struct b43_wl *wl = hw_to_b43_wl(hw);
Michael Bueschc6dfc9a2007-10-28 15:59:58 +01003786 struct b43_wldev *dev;
Michael Buesche4d6b792007-09-18 15:39:42 -04003787 u8 algorithm;
3788 u8 index;
Michael Bueschc6dfc9a2007-10-28 15:59:58 +01003789 int err;
Michael Buesch060210f2009-01-25 15:49:59 +01003790 static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
Michael Buesche4d6b792007-09-18 15:39:42 -04003791
3792 if (modparam_nohwcrypt)
3793 return -ENOSPC; /* User disabled HW-crypto */
3794
Michael Bueschc6dfc9a2007-10-28 15:59:58 +01003795 mutex_lock(&wl->mutex);
Michael Bueschc6dfc9a2007-10-28 15:59:58 +01003796
3797 dev = wl->current_dev;
3798 err = -ENODEV;
3799 if (!dev || b43_status(dev) < B43_STAT_INITIALIZED)
3800 goto out_unlock;
3801
Michael Buesch403a3a12009-06-08 21:04:57 +02003802 if (dev->fw.pcm_request_failed || !dev->hwcrypto_enabled) {
Michael Buesch68217832008-05-17 23:43:57 +02003803 /* We don't have firmware for the crypto engine.
3804 * Must use software-crypto. */
3805 err = -EOPNOTSUPP;
3806 goto out_unlock;
3807 }
3808
Michael Bueschc6dfc9a2007-10-28 15:59:58 +01003809 err = -EINVAL;
Johannes Berg97359d12010-08-10 09:46:38 +02003810 switch (key->cipher) {
3811 case WLAN_CIPHER_SUITE_WEP40:
3812 algorithm = B43_SEC_ALGO_WEP40;
Michael Buesche4d6b792007-09-18 15:39:42 -04003813 break;
Johannes Berg97359d12010-08-10 09:46:38 +02003814 case WLAN_CIPHER_SUITE_WEP104:
3815 algorithm = B43_SEC_ALGO_WEP104;
3816 break;
3817 case WLAN_CIPHER_SUITE_TKIP:
Michael Buesche4d6b792007-09-18 15:39:42 -04003818 algorithm = B43_SEC_ALGO_TKIP;
3819 break;
Johannes Berg97359d12010-08-10 09:46:38 +02003820 case WLAN_CIPHER_SUITE_CCMP:
Michael Buesche4d6b792007-09-18 15:39:42 -04003821 algorithm = B43_SEC_ALGO_AES;
3822 break;
3823 default:
3824 B43_WARN_ON(1);
Michael Buesche4d6b792007-09-18 15:39:42 -04003825 goto out_unlock;
3826 }
Michael Bueschc6dfc9a2007-10-28 15:59:58 +01003827 index = (u8) (key->keyidx);
3828 if (index > 3)
3829 goto out_unlock;
Michael Buesche4d6b792007-09-18 15:39:42 -04003830
3831 switch (cmd) {
3832 case SET_KEY:
gregor kowski035d0242009-08-19 22:35:45 +02003833 if (algorithm == B43_SEC_ALGO_TKIP &&
3834 (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE) ||
3835 !modparam_hwtkip)) {
3836 /* We support only pairwise key */
Michael Buesche4d6b792007-09-18 15:39:42 -04003837 err = -EOPNOTSUPP;
3838 goto out_unlock;
3839 }
3840
Michael Buesche808e582008-12-19 21:30:52 +01003841 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
Johannes Bergdc822b52008-12-29 12:55:09 +01003842 if (WARN_ON(!sta)) {
3843 err = -EOPNOTSUPP;
3844 goto out_unlock;
3845 }
Michael Buesche808e582008-12-19 21:30:52 +01003846 /* Pairwise key with an assigned MAC address. */
Michael Buesche4d6b792007-09-18 15:39:42 -04003847 err = b43_key_write(dev, -1, algorithm,
Johannes Bergdc822b52008-12-29 12:55:09 +01003848 key->key, key->keylen,
3849 sta->addr, key);
Michael Buesche808e582008-12-19 21:30:52 +01003850 } else {
3851 /* Group key */
3852 err = b43_key_write(dev, index, algorithm,
3853 key->key, key->keylen, NULL, key);
Michael Buesche4d6b792007-09-18 15:39:42 -04003854 }
3855 if (err)
3856 goto out_unlock;
3857
3858 if (algorithm == B43_SEC_ALGO_WEP40 ||
3859 algorithm == B43_SEC_ALGO_WEP104) {
3860 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS);
3861 } else {
3862 b43_hf_write(dev,
3863 b43_hf_read(dev) & ~B43_HF_USEDEFKEYS);
3864 }
3865 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
gregor kowski035d0242009-08-19 22:35:45 +02003866 if (algorithm == B43_SEC_ALGO_TKIP)
3867 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
Michael Buesche4d6b792007-09-18 15:39:42 -04003868 break;
3869 case DISABLE_KEY: {
3870 err = b43_key_clear(dev, key->hw_key_idx);
3871 if (err)
3872 goto out_unlock;
3873 break;
3874 }
3875 default:
3876 B43_WARN_ON(1);
3877 }
Michael Buesch9cf7f242008-12-19 20:24:30 +01003878
Michael Buesche4d6b792007-09-18 15:39:42 -04003879out_unlock:
Michael Buesche4d6b792007-09-18 15:39:42 -04003880 if (!err) {
3881 b43dbg(wl, "%s hardware based encryption for keyidx: %d, "
Johannes Berge1749612008-10-27 15:59:26 -07003882 "mac: %pM\n",
Michael Buesche4d6b792007-09-18 15:39:42 -04003883 cmd == SET_KEY ? "Using" : "Disabling", key->keyidx,
Larry Fingera1d882102009-01-14 11:15:25 -06003884 sta ? sta->addr : bcast_addr);
Michael Buesch9cf7f242008-12-19 20:24:30 +01003885 b43_dump_keymemory(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04003886 }
Michael Buesch9cf7f242008-12-19 20:24:30 +01003887 mutex_unlock(&wl->mutex);
3888
Michael Buesche4d6b792007-09-18 15:39:42 -04003889 return err;
3890}
3891
Michael Buesch40faacc2007-10-28 16:29:32 +01003892static void b43_op_configure_filter(struct ieee80211_hw *hw,
3893 unsigned int changed, unsigned int *fflags,
Johannes Berg3ac64be2009-08-17 16:16:53 +02003894 u64 multicast)
Michael Buesche4d6b792007-09-18 15:39:42 -04003895{
3896 struct b43_wl *wl = hw_to_b43_wl(hw);
Michael Buesch36dbd952009-09-04 22:51:29 +02003897 struct b43_wldev *dev;
Michael Buesche4d6b792007-09-18 15:39:42 -04003898
Michael Buesch36dbd952009-09-04 22:51:29 +02003899 mutex_lock(&wl->mutex);
3900 dev = wl->current_dev;
Johannes Berg4150c572007-09-17 01:29:23 -04003901 if (!dev) {
3902 *fflags = 0;
Michael Buesch36dbd952009-09-04 22:51:29 +02003903 goto out_unlock;
Michael Buesche4d6b792007-09-18 15:39:42 -04003904 }
Johannes Berg4150c572007-09-17 01:29:23 -04003905
Johannes Berg4150c572007-09-17 01:29:23 -04003906 *fflags &= FIF_PROMISC_IN_BSS |
3907 FIF_ALLMULTI |
3908 FIF_FCSFAIL |
3909 FIF_PLCPFAIL |
3910 FIF_CONTROL |
3911 FIF_OTHER_BSS |
3912 FIF_BCN_PRBRESP_PROMISC;
3913
3914 changed &= FIF_PROMISC_IN_BSS |
3915 FIF_ALLMULTI |
3916 FIF_FCSFAIL |
3917 FIF_PLCPFAIL |
3918 FIF_CONTROL |
3919 FIF_OTHER_BSS |
3920 FIF_BCN_PRBRESP_PROMISC;
3921
3922 wl->filter_flags = *fflags;
3923
3924 if (changed && b43_status(dev) >= B43_STAT_INITIALIZED)
3925 b43_adjust_opmode(dev);
Michael Buesch36dbd952009-09-04 22:51:29 +02003926
3927out_unlock:
3928 mutex_unlock(&wl->mutex);
Michael Buesche4d6b792007-09-18 15:39:42 -04003929}
3930
Michael Buesch36dbd952009-09-04 22:51:29 +02003931/* Locking: wl->mutex
3932 * Returns the current dev. This might be different from the passed in dev,
3933 * because the core might be gone away while we unlocked the mutex. */
3934static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev)
Michael Buesche4d6b792007-09-18 15:39:42 -04003935{
3936 struct b43_wl *wl = dev->wl;
Michael Buesch36dbd952009-09-04 22:51:29 +02003937 struct b43_wldev *orig_dev;
Michael Buesch49d965c2009-10-03 00:57:58 +02003938 u32 mask;
Michael Buesche4d6b792007-09-18 15:39:42 -04003939
Michael Buesch36dbd952009-09-04 22:51:29 +02003940redo:
3941 if (!dev || b43_status(dev) < B43_STAT_STARTED)
3942 return dev;
Stefano Brivioa19d12d2007-11-07 18:16:11 +01003943
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003944 /* Cancel work. Unlock to avoid deadlocks. */
Michael Buesche4d6b792007-09-18 15:39:42 -04003945 mutex_unlock(&wl->mutex);
Michael Buesche4d6b792007-09-18 15:39:42 -04003946 cancel_delayed_work_sync(&dev->periodic_work);
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003947 cancel_work_sync(&wl->tx_work);
Michael Buesche4d6b792007-09-18 15:39:42 -04003948 mutex_lock(&wl->mutex);
Michael Buesch36dbd952009-09-04 22:51:29 +02003949 dev = wl->current_dev;
3950 if (!dev || b43_status(dev) < B43_STAT_STARTED) {
3951 /* Whoops, aliens ate up the device while we were unlocked. */
3952 return dev;
3953 }
Michael Buesche4d6b792007-09-18 15:39:42 -04003954
Michael Buesch36dbd952009-09-04 22:51:29 +02003955 /* Disable interrupts on the device. */
3956 b43_set_status(dev, B43_STAT_INITIALIZED);
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02003957 if (dev->sdev->bus->bustype == SSB_BUSTYPE_SDIO) {
Michael Buesch36dbd952009-09-04 22:51:29 +02003958 /* wl->mutex is locked. That is enough. */
3959 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0);
3960 b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */
3961 } else {
3962 spin_lock_irq(&wl->hardirq_lock);
3963 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0);
3964 b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */
3965 spin_unlock_irq(&wl->hardirq_lock);
3966 }
Michael Buesch176e9f62009-09-11 23:04:04 +02003967 /* Synchronize and free the interrupt handlers. Unlock to avoid deadlocks. */
Michael Buesch36dbd952009-09-04 22:51:29 +02003968 orig_dev = dev;
3969 mutex_unlock(&wl->mutex);
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02003970 if (dev->sdev->bus->bustype == SSB_BUSTYPE_SDIO) {
Michael Buesch176e9f62009-09-11 23:04:04 +02003971 b43_sdio_free_irq(dev);
3972 } else {
Rafał Miłeckia18c7152011-05-18 02:06:40 +02003973 synchronize_irq(dev->dev->irq);
3974 free_irq(dev->dev->irq, dev);
Michael Buesch176e9f62009-09-11 23:04:04 +02003975 }
Michael Buesch36dbd952009-09-04 22:51:29 +02003976 mutex_lock(&wl->mutex);
3977 dev = wl->current_dev;
3978 if (!dev)
3979 return dev;
3980 if (dev != orig_dev) {
3981 if (b43_status(dev) >= B43_STAT_STARTED)
3982 goto redo;
3983 return dev;
3984 }
Michael Buesch49d965c2009-10-03 00:57:58 +02003985 mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK);
3986 B43_WARN_ON(mask != 0xFFFFFFFF && mask);
Michael Buesch36dbd952009-09-04 22:51:29 +02003987
Michael Bueschf5d40ee2009-09-04 22:53:18 +02003988 /* Drain the TX queue */
3989 while (skb_queue_len(&wl->tx_queue))
3990 dev_kfree_skb(skb_dequeue(&wl->tx_queue));
3991
Michael Buesche4d6b792007-09-18 15:39:42 -04003992 b43_mac_suspend(dev);
Michael Buescha78b3bb2009-09-11 21:44:05 +02003993 b43_leds_exit(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04003994 b43dbg(wl, "Wireless interface stopped\n");
Michael Buesch36dbd952009-09-04 22:51:29 +02003995
3996 return dev;
Michael Buesche4d6b792007-09-18 15:39:42 -04003997}
3998
3999/* Locking: wl->mutex */
4000static int b43_wireless_core_start(struct b43_wldev *dev)
4001{
4002 int err;
4003
4004 B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED);
4005
4006 drain_txstatus_queue(dev);
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004007 if (dev->sdev->bus->bustype == SSB_BUSTYPE_SDIO) {
Albert Herranz3dbba8e2009-09-10 19:34:49 +02004008 err = b43_sdio_request_irq(dev, b43_sdio_interrupt_handler);
4009 if (err) {
4010 b43err(dev->wl, "Cannot request SDIO IRQ\n");
4011 goto out;
4012 }
4013 } else {
Rafał Miłeckia18c7152011-05-18 02:06:40 +02004014 err = request_threaded_irq(dev->dev->irq, b43_interrupt_handler,
Albert Herranz3dbba8e2009-09-10 19:34:49 +02004015 b43_interrupt_thread_handler,
4016 IRQF_SHARED, KBUILD_MODNAME, dev);
4017 if (err) {
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004018 b43err(dev->wl, "Cannot request IRQ-%d\n",
Rafał Miłeckia18c7152011-05-18 02:06:40 +02004019 dev->dev->irq);
Albert Herranz3dbba8e2009-09-10 19:34:49 +02004020 goto out;
4021 }
Michael Buesche4d6b792007-09-18 15:39:42 -04004022 }
4023
4024 /* We are ready to run. */
Larry Finger0866b032010-02-03 13:33:44 -06004025 ieee80211_wake_queues(dev->wl->hw);
Michael Buesche4d6b792007-09-18 15:39:42 -04004026 b43_set_status(dev, B43_STAT_STARTED);
4027
4028 /* Start data flow (TX/RX). */
4029 b43_mac_enable(dev);
Michael Buesch13790722009-04-08 21:26:27 +02004030 b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask);
Michael Buesche4d6b792007-09-18 15:39:42 -04004031
Lucas De Marchi25985ed2011-03-30 22:57:33 -03004032 /* Start maintenance work */
Michael Buesche4d6b792007-09-18 15:39:42 -04004033 b43_periodic_tasks_setup(dev);
4034
Michael Buescha78b3bb2009-09-11 21:44:05 +02004035 b43_leds_init(dev);
4036
Michael Buesche4d6b792007-09-18 15:39:42 -04004037 b43dbg(dev->wl, "Wireless interface started\n");
Michael Buescha78b3bb2009-09-11 21:44:05 +02004038out:
Michael Buesche4d6b792007-09-18 15:39:42 -04004039 return err;
4040}
4041
4042/* Get PHY and RADIO versioning numbers */
4043static int b43_phy_versioning(struct b43_wldev *dev)
4044{
4045 struct b43_phy *phy = &dev->phy;
4046 u32 tmp;
4047 u8 analog_type;
4048 u8 phy_type;
4049 u8 phy_rev;
4050 u16 radio_manuf;
4051 u16 radio_ver;
4052 u16 radio_rev;
4053 int unsupported = 0;
4054
4055 /* Get PHY versioning */
4056 tmp = b43_read16(dev, B43_MMIO_PHY_VER);
4057 analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT;
4058 phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT;
4059 phy_rev = (tmp & B43_PHYVER_VERSION);
4060 switch (phy_type) {
4061 case B43_PHYTYPE_A:
4062 if (phy_rev >= 4)
4063 unsupported = 1;
4064 break;
4065 case B43_PHYTYPE_B:
4066 if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6
4067 && phy_rev != 7)
4068 unsupported = 1;
4069 break;
4070 case B43_PHYTYPE_G:
Larry Finger013978b2007-11-26 10:29:47 -06004071 if (phy_rev > 9)
Michael Buesche4d6b792007-09-18 15:39:42 -04004072 unsupported = 1;
4073 break;
Rafał Miłecki692d2c02010-12-07 21:56:00 +01004074#ifdef CONFIG_B43_PHY_N
Michael Bueschd5c71e42008-01-04 17:06:29 +01004075 case B43_PHYTYPE_N:
Rafał Miłeckiab72efd2010-12-21 21:29:44 +01004076 if (phy_rev > 9)
Michael Bueschd5c71e42008-01-04 17:06:29 +01004077 unsupported = 1;
4078 break;
4079#endif
Michael Buesch6b1c7c62008-12-25 00:39:28 +01004080#ifdef CONFIG_B43_PHY_LP
4081 case B43_PHYTYPE_LP:
Gábor Stefanik9d86a2d2009-08-14 14:54:46 +02004082 if (phy_rev > 2)
Michael Buesch6b1c7c62008-12-25 00:39:28 +01004083 unsupported = 1;
4084 break;
4085#endif
Michael Buesche4d6b792007-09-18 15:39:42 -04004086 default:
4087 unsupported = 1;
4088 };
4089 if (unsupported) {
4090 b43err(dev->wl, "FOUND UNSUPPORTED PHY "
4091 "(Analog %u, Type %u, Revision %u)\n",
4092 analog_type, phy_type, phy_rev);
4093 return -EOPNOTSUPP;
4094 }
4095 b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n",
4096 analog_type, phy_type, phy_rev);
4097
4098 /* Get RADIO versioning */
Rafał Miłeckic244e082011-05-18 02:06:41 +02004099 if (dev->dev->chip_id == 0x4317) {
4100 if (dev->dev->chip_rev == 0)
Michael Buesche4d6b792007-09-18 15:39:42 -04004101 tmp = 0x3205017F;
Rafał Miłeckic244e082011-05-18 02:06:41 +02004102 else if (dev->dev->chip_rev == 1)
Michael Buesche4d6b792007-09-18 15:39:42 -04004103 tmp = 0x4205017F;
4104 else
4105 tmp = 0x5205017F;
4106 } else {
4107 b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
Michael Buesch243dcfc2008-01-13 14:12:44 +01004108 tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
Michael Buesche4d6b792007-09-18 15:39:42 -04004109 b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID);
Michael Buesch243dcfc2008-01-13 14:12:44 +01004110 tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH) << 16;
Michael Buesche4d6b792007-09-18 15:39:42 -04004111 }
4112 radio_manuf = (tmp & 0x00000FFF);
4113 radio_ver = (tmp & 0x0FFFF000) >> 12;
4114 radio_rev = (tmp & 0xF0000000) >> 28;
Michael Buesch96c755a2008-01-06 00:09:46 +01004115 if (radio_manuf != 0x17F /* Broadcom */)
4116 unsupported = 1;
Michael Buesche4d6b792007-09-18 15:39:42 -04004117 switch (phy_type) {
4118 case B43_PHYTYPE_A:
4119 if (radio_ver != 0x2060)
4120 unsupported = 1;
4121 if (radio_rev != 1)
4122 unsupported = 1;
4123 if (radio_manuf != 0x17F)
4124 unsupported = 1;
4125 break;
4126 case B43_PHYTYPE_B:
4127 if ((radio_ver & 0xFFF0) != 0x2050)
4128 unsupported = 1;
4129 break;
4130 case B43_PHYTYPE_G:
4131 if (radio_ver != 0x2050)
4132 unsupported = 1;
4133 break;
Michael Buesch96c755a2008-01-06 00:09:46 +01004134 case B43_PHYTYPE_N:
Johannes Bergbb519be2008-12-24 15:26:40 +01004135 if (radio_ver != 0x2055 && radio_ver != 0x2056)
Michael Buesch96c755a2008-01-06 00:09:46 +01004136 unsupported = 1;
4137 break;
Michael Buesch6b1c7c62008-12-25 00:39:28 +01004138 case B43_PHYTYPE_LP:
Gábor Stefanik9d86a2d2009-08-14 14:54:46 +02004139 if (radio_ver != 0x2062 && radio_ver != 0x2063)
Michael Buesch6b1c7c62008-12-25 00:39:28 +01004140 unsupported = 1;
4141 break;
Michael Buesche4d6b792007-09-18 15:39:42 -04004142 default:
4143 B43_WARN_ON(1);
4144 }
4145 if (unsupported) {
4146 b43err(dev->wl, "FOUND UNSUPPORTED RADIO "
4147 "(Manuf 0x%X, Version 0x%X, Revision %u)\n",
4148 radio_manuf, radio_ver, radio_rev);
4149 return -EOPNOTSUPP;
4150 }
4151 b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n",
4152 radio_manuf, radio_ver, radio_rev);
4153
4154 phy->radio_manuf = radio_manuf;
4155 phy->radio_ver = radio_ver;
4156 phy->radio_rev = radio_rev;
4157
4158 phy->analog = analog_type;
4159 phy->type = phy_type;
4160 phy->rev = phy_rev;
4161
4162 return 0;
4163}
4164
4165static void setup_struct_phy_for_init(struct b43_wldev *dev,
4166 struct b43_phy *phy)
4167{
Michael Buesche4d6b792007-09-18 15:39:42 -04004168 phy->hardware_power_control = !!modparam_hwpctl;
Michael Buesch18c8ade2008-08-28 19:33:40 +02004169 phy->next_txpwr_check_time = jiffies;
Michael Buesch8ed7fc42007-12-09 22:34:59 +01004170 /* PHY TX errors counter. */
4171 atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT);
Michael Buesch591f3dc2009-03-31 12:27:32 +02004172
4173#if B43_DEBUG
4174 phy->phy_locked = 0;
4175 phy->radio_locked = 0;
4176#endif
Michael Buesche4d6b792007-09-18 15:39:42 -04004177}
4178
4179static void setup_struct_wldev_for_init(struct b43_wldev *dev)
4180{
Michael Bueschaa6c7ae2007-12-26 16:26:36 +01004181 dev->dfq_valid = 0;
4182
Michael Buesch6a724d62007-09-20 22:12:58 +02004183 /* Assume the radio is enabled. If it's not enabled, the state will
4184 * immediately get fixed on the first periodic work run. */
4185 dev->radio_hw_enable = 1;
Michael Buesche4d6b792007-09-18 15:39:42 -04004186
4187 /* Stats */
4188 memset(&dev->stats, 0, sizeof(dev->stats));
4189
4190 setup_struct_phy_for_init(dev, &dev->phy);
4191
4192 /* IRQ related flags */
4193 dev->irq_reason = 0;
4194 memset(dev->dma_reason, 0, sizeof(dev->dma_reason));
Michael Buesch13790722009-04-08 21:26:27 +02004195 dev->irq_mask = B43_IRQ_MASKTEMPLATE;
Michael Buesch3e3ccb32009-03-19 19:27:21 +01004196 if (b43_modparam_verbose < B43_VERBOSITY_DEBUG)
Michael Buesch13790722009-04-08 21:26:27 +02004197 dev->irq_mask &= ~B43_IRQ_PHY_TXERR;
Michael Buesche4d6b792007-09-18 15:39:42 -04004198
4199 dev->mac_suspended = 1;
4200
4201 /* Noise calculation context */
4202 memset(&dev->noisecalc, 0, sizeof(dev->noisecalc));
4203}
4204
4205static void b43_bluetooth_coext_enable(struct b43_wldev *dev)
4206{
Rafał Miłecki05814832011-05-18 02:06:39 +02004207 struct ssb_sprom *sprom = dev->dev->bus_sprom;
Michael Buescha259d6a2008-04-18 21:06:37 +02004208 u64 hf;
Michael Buesche4d6b792007-09-18 15:39:42 -04004209
Michael Buesch1855ba72008-04-18 20:51:41 +02004210 if (!modparam_btcoex)
4211 return;
Larry Finger95de2842007-11-09 16:57:18 -06004212 if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST))
Michael Buesche4d6b792007-09-18 15:39:42 -04004213 return;
4214 if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode)
4215 return;
4216
4217 hf = b43_hf_read(dev);
Larry Finger95de2842007-11-09 16:57:18 -06004218 if (sprom->boardflags_lo & B43_BFL_BTCMOD)
Michael Buesche4d6b792007-09-18 15:39:42 -04004219 hf |= B43_HF_BTCOEXALT;
4220 else
4221 hf |= B43_HF_BTCOEX;
4222 b43_hf_write(dev, hf);
Michael Buesche4d6b792007-09-18 15:39:42 -04004223}
4224
4225static void b43_bluetooth_coext_disable(struct b43_wldev *dev)
Michael Buesch1855ba72008-04-18 20:51:41 +02004226{
4227 if (!modparam_btcoex)
4228 return;
4229 //TODO
Michael Buesche4d6b792007-09-18 15:39:42 -04004230}
4231
4232static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev)
4233{
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004234 struct ssb_bus *bus = dev->sdev->bus;
Michael Buesche4d6b792007-09-18 15:39:42 -04004235 u32 tmp;
4236
Rafał Miłecki0fd82ea2011-05-11 02:10:59 +02004237 if ((bus->chip_id == 0x4311 && bus->chip_rev == 2) ||
4238 (bus->chip_id == 0x4312)) {
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004239 tmp = ssb_read32(dev->sdev, SSB_IMCFGLO);
Rafał Miłecki0fd82ea2011-05-11 02:10:59 +02004240 tmp &= ~SSB_IMCFGLO_REQTO;
4241 tmp &= ~SSB_IMCFGLO_SERTO;
4242 tmp |= 0x3;
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004243 ssb_write32(dev->sdev, SSB_IMCFGLO, tmp);
Rafał Miłecki0fd82ea2011-05-11 02:10:59 +02004244 ssb_commit_settings(bus);
Michael Buesche4d6b792007-09-18 15:39:42 -04004245 }
Michael Buesche4d6b792007-09-18 15:39:42 -04004246}
4247
Michael Bueschd59f7202008-04-03 18:56:19 +02004248static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle)
4249{
4250 u16 pu_delay;
4251
4252 /* The time value is in microseconds. */
4253 if (dev->phy.type == B43_PHYTYPE_A)
4254 pu_delay = 3700;
4255 else
4256 pu_delay = 1050;
Johannes Berg05c914f2008-09-11 00:01:58 +02004257 if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC) || idle)
Michael Bueschd59f7202008-04-03 18:56:19 +02004258 pu_delay = 500;
4259 if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8))
4260 pu_delay = max(pu_delay, (u16)2400);
4261
4262 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay);
4263}
4264
4265/* Set the TSF CFP pre-TargetBeaconTransmissionTime. */
4266static void b43_set_pretbtt(struct b43_wldev *dev)
4267{
4268 u16 pretbtt;
4269
4270 /* The time value is in microseconds. */
Johannes Berg05c914f2008-09-11 00:01:58 +02004271 if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) {
Michael Bueschd59f7202008-04-03 18:56:19 +02004272 pretbtt = 2;
4273 } else {
4274 if (dev->phy.type == B43_PHYTYPE_A)
4275 pretbtt = 120;
4276 else
4277 pretbtt = 250;
4278 }
4279 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt);
4280 b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt);
4281}
4282
Michael Buesche4d6b792007-09-18 15:39:42 -04004283/* Shutdown a wireless core */
4284/* Locking: wl->mutex */
4285static void b43_wireless_core_exit(struct b43_wldev *dev)
4286{
Michael Buesch1f7d87b2008-01-22 20:23:34 +01004287 u32 macctl;
Michael Buesche4d6b792007-09-18 15:39:42 -04004288
Michael Buesch36dbd952009-09-04 22:51:29 +02004289 B43_WARN_ON(dev && b43_status(dev) > B43_STAT_INITIALIZED);
4290 if (!dev || b43_status(dev) != B43_STAT_INITIALIZED)
Michael Buesche4d6b792007-09-18 15:39:42 -04004291 return;
John W. Linville84c164a2010-08-06 15:31:45 -04004292
4293 /* Unregister HW RNG driver */
4294 b43_rng_exit(dev->wl);
4295
Michael Buesche4d6b792007-09-18 15:39:42 -04004296 b43_set_status(dev, B43_STAT_UNINIT);
4297
Michael Buesch1f7d87b2008-01-22 20:23:34 +01004298 /* Stop the microcode PSM. */
4299 macctl = b43_read32(dev, B43_MMIO_MACCTL);
4300 macctl &= ~B43_MACCTL_PSM_RUN;
4301 macctl |= B43_MACCTL_PSM_JMP0;
4302 b43_write32(dev, B43_MMIO_MACCTL, macctl);
4303
Michael Buesche4d6b792007-09-18 15:39:42 -04004304 b43_dma_free(dev);
Michael Buesch5100d5a2008-03-29 21:01:16 +01004305 b43_pio_free(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004306 b43_chip_exit(dev);
Michael Bueschcb24f572008-09-03 12:12:20 +02004307 dev->phy.ops->switch_analog(dev, 0);
Michael Buesche66fee62007-12-26 17:47:10 +01004308 if (dev->wl->current_beacon) {
4309 dev_kfree_skb_any(dev->wl->current_beacon);
4310 dev->wl->current_beacon = NULL;
4311 }
4312
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004313 ssb_device_disable(dev->sdev, 0);
4314 ssb_bus_may_powerdown(dev->sdev->bus);
Michael Buesche4d6b792007-09-18 15:39:42 -04004315}
4316
4317/* Initialize a wireless core */
4318static int b43_wireless_core_init(struct b43_wldev *dev)
4319{
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004320 struct ssb_bus *bus = dev->sdev->bus;
Rafał Miłecki05814832011-05-18 02:06:39 +02004321 struct ssb_sprom *sprom = dev->dev->bus_sprom;
Michael Buesche4d6b792007-09-18 15:39:42 -04004322 struct b43_phy *phy = &dev->phy;
4323 int err;
Michael Buescha259d6a2008-04-18 21:06:37 +02004324 u64 hf;
4325 u32 tmp;
Michael Buesche4d6b792007-09-18 15:39:42 -04004326
4327 B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
4328
4329 err = ssb_bus_powerup(bus, 0);
4330 if (err)
4331 goto out;
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004332 if (!ssb_device_is_enabled(dev->sdev)) {
Michael Buesche4d6b792007-09-18 15:39:42 -04004333 tmp = phy->gmode ? B43_TMSLOW_GMODE : 0;
4334 b43_wireless_core_reset(dev, tmp);
4335 }
4336
Michael Bueschfb111372008-09-02 13:00:34 +02004337 /* Reset all data structures. */
Michael Buesche4d6b792007-09-18 15:39:42 -04004338 setup_struct_wldev_for_init(dev);
Michael Bueschfb111372008-09-02 13:00:34 +02004339 phy->ops->prepare_structs(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004340
4341 /* Enable IRQ routing to this device. */
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004342 ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->sdev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004343
4344 b43_imcfglo_timeouts_workaround(dev);
4345 b43_bluetooth_coext_disable(dev);
Michael Bueschfb111372008-09-02 13:00:34 +02004346 if (phy->ops->prepare_hardware) {
4347 err = phy->ops->prepare_hardware(dev);
Michael Bueschef1a6282008-08-27 18:53:02 +02004348 if (err)
Michael Bueschfb111372008-09-02 13:00:34 +02004349 goto err_busdown;
Michael Bueschef1a6282008-08-27 18:53:02 +02004350 }
Michael Buesche4d6b792007-09-18 15:39:42 -04004351 err = b43_chip_init(dev);
4352 if (err)
Michael Bueschfb111372008-09-02 13:00:34 +02004353 goto err_busdown;
Michael Buesche4d6b792007-09-18 15:39:42 -04004354 b43_shm_write16(dev, B43_SHM_SHARED,
Rafał Miłecki21d889d2011-05-18 02:06:38 +02004355 B43_SHM_SH_WLCOREREV, dev->dev->core_rev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004356 hf = b43_hf_read(dev);
4357 if (phy->type == B43_PHYTYPE_G) {
4358 hf |= B43_HF_SYMW;
4359 if (phy->rev == 1)
4360 hf |= B43_HF_GDCW;
Larry Finger95de2842007-11-09 16:57:18 -06004361 if (sprom->boardflags_lo & B43_BFL_PACTRL)
Michael Buesche4d6b792007-09-18 15:39:42 -04004362 hf |= B43_HF_OFDMPABOOST;
Michael Buesch969d15c2009-02-20 14:27:15 +01004363 }
4364 if (phy->radio_ver == 0x2050) {
4365 if (phy->radio_rev == 6)
4366 hf |= B43_HF_4318TSSI;
4367 if (phy->radio_rev < 6)
4368 hf |= B43_HF_VCORECALC;
Michael Buesche4d6b792007-09-18 15:39:42 -04004369 }
Michael Buesch1cc8f472009-02-20 14:47:56 +01004370 if (sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW)
4371 hf |= B43_HF_DSCRQ; /* Disable slowclock requests from ucode. */
Michael Buesch1a777332009-03-04 16:41:10 +01004372#ifdef CONFIG_SSB_DRIVER_PCICORE
Michael Buesch88219052009-02-20 14:58:59 +01004373 if ((bus->bustype == SSB_BUSTYPE_PCI) &&
4374 (bus->pcicore.dev->id.revision <= 10))
4375 hf |= B43_HF_PCISCW; /* PCI slow clock workaround. */
Michael Buesch1a777332009-03-04 16:41:10 +01004376#endif
Michael Buesch25d3ef52009-02-20 15:39:21 +01004377 hf &= ~B43_HF_SKCFPUP;
Michael Buesche4d6b792007-09-18 15:39:42 -04004378 b43_hf_write(dev, hf);
4379
Michael Buesch74cfdba2007-10-28 16:19:44 +01004380 b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT,
4381 B43_DEFAULT_LONG_RETRY_LIMIT);
Michael Buesche4d6b792007-09-18 15:39:42 -04004382 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3);
4383 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2);
4384
4385 /* Disable sending probe responses from firmware.
4386 * Setting the MaxTime to one usec will always trigger
4387 * a timeout, so we never send any probe resp.
4388 * A timeout of zero is infinite. */
4389 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1);
4390
4391 b43_rate_memory_init(dev);
Michael Buesch5042c502008-04-05 15:05:00 +02004392 b43_set_phytxctl_defaults(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004393
4394 /* Minimum Contention Window */
Daniel Nguc5a079f2010-03-23 00:52:44 +13004395 if (phy->type == B43_PHYTYPE_B)
Michael Buesche4d6b792007-09-18 15:39:42 -04004396 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F);
Daniel Nguc5a079f2010-03-23 00:52:44 +13004397 else
Michael Buesche4d6b792007-09-18 15:39:42 -04004398 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF);
Michael Buesche4d6b792007-09-18 15:39:42 -04004399 /* Maximum Contention Window */
4400 b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF);
4401
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004402 if ((dev->sdev->bus->bustype == SSB_BUSTYPE_PCMCIA) ||
4403 (dev->sdev->bus->bustype == SSB_BUSTYPE_SDIO) ||
Linus Torvalds9e3bd912010-02-26 10:34:27 -08004404 dev->use_pio) {
Michael Buesch5100d5a2008-03-29 21:01:16 +01004405 dev->__using_pio_transfers = 1;
4406 err = b43_pio_init(dev);
4407 } else {
4408 dev->__using_pio_transfers = 0;
4409 err = b43_dma_init(dev);
4410 }
Michael Buesche4d6b792007-09-18 15:39:42 -04004411 if (err)
4412 goto err_chip_exit;
Michael Buesch03b29772007-12-26 14:41:30 +01004413 b43_qos_init(dev);
Michael Bueschd59f7202008-04-03 18:56:19 +02004414 b43_set_synth_pu_delay(dev, 1);
Michael Buesche4d6b792007-09-18 15:39:42 -04004415 b43_bluetooth_coext_enable(dev);
4416
Michael Buesch1cc8f472009-02-20 14:47:56 +01004417 ssb_bus_powerup(bus, !(sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW));
Johannes Berg4150c572007-09-17 01:29:23 -04004418 b43_upload_card_macaddress(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004419 b43_security_init(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004420
Michael Buesch5ab95492009-09-10 20:31:46 +02004421 ieee80211_wake_queues(dev->wl->hw);
Michael Buesche4d6b792007-09-18 15:39:42 -04004422
4423 b43_set_status(dev, B43_STAT_INITIALIZED);
4424
John W. Linville84c164a2010-08-06 15:31:45 -04004425 /* Register HW RNG driver */
4426 b43_rng_init(dev->wl);
4427
Larry Finger1a8d1222007-12-14 13:59:11 +01004428out:
Michael Buesche4d6b792007-09-18 15:39:42 -04004429 return err;
4430
Michael Bueschef1a6282008-08-27 18:53:02 +02004431err_chip_exit:
Michael Buesche4d6b792007-09-18 15:39:42 -04004432 b43_chip_exit(dev);
Michael Bueschef1a6282008-08-27 18:53:02 +02004433err_busdown:
Michael Buesche4d6b792007-09-18 15:39:42 -04004434 ssb_bus_may_powerdown(bus);
4435 B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT);
4436 return err;
4437}
4438
Michael Buesch40faacc2007-10-28 16:29:32 +01004439static int b43_op_add_interface(struct ieee80211_hw *hw,
Johannes Berg1ed32e42009-12-23 13:15:45 +01004440 struct ieee80211_vif *vif)
Michael Buesche4d6b792007-09-18 15:39:42 -04004441{
4442 struct b43_wl *wl = hw_to_b43_wl(hw);
4443 struct b43_wldev *dev;
Michael Buesche4d6b792007-09-18 15:39:42 -04004444 int err = -EOPNOTSUPP;
Johannes Berg4150c572007-09-17 01:29:23 -04004445
4446 /* TODO: allow WDS/AP devices to coexist */
4447
Johannes Berg1ed32e42009-12-23 13:15:45 +01004448 if (vif->type != NL80211_IFTYPE_AP &&
4449 vif->type != NL80211_IFTYPE_MESH_POINT &&
4450 vif->type != NL80211_IFTYPE_STATION &&
4451 vif->type != NL80211_IFTYPE_WDS &&
4452 vif->type != NL80211_IFTYPE_ADHOC)
Johannes Berg4150c572007-09-17 01:29:23 -04004453 return -EOPNOTSUPP;
Michael Buesche4d6b792007-09-18 15:39:42 -04004454
4455 mutex_lock(&wl->mutex);
Johannes Berg4150c572007-09-17 01:29:23 -04004456 if (wl->operating)
Michael Buesche4d6b792007-09-18 15:39:42 -04004457 goto out_mutex_unlock;
4458
Johannes Berg1ed32e42009-12-23 13:15:45 +01004459 b43dbg(wl, "Adding Interface type %d\n", vif->type);
Michael Buesche4d6b792007-09-18 15:39:42 -04004460
4461 dev = wl->current_dev;
Johannes Berg4150c572007-09-17 01:29:23 -04004462 wl->operating = 1;
Johannes Berg1ed32e42009-12-23 13:15:45 +01004463 wl->vif = vif;
4464 wl->if_type = vif->type;
4465 memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
Michael Buesche4d6b792007-09-18 15:39:42 -04004466
Michael Buesche4d6b792007-09-18 15:39:42 -04004467 b43_adjust_opmode(dev);
Michael Bueschd59f7202008-04-03 18:56:19 +02004468 b43_set_pretbtt(dev);
4469 b43_set_synth_pu_delay(dev, 0);
Johannes Berg4150c572007-09-17 01:29:23 -04004470 b43_upload_card_macaddress(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004471
4472 err = 0;
Johannes Berg4150c572007-09-17 01:29:23 -04004473 out_mutex_unlock:
Michael Buesche4d6b792007-09-18 15:39:42 -04004474 mutex_unlock(&wl->mutex);
4475
4476 return err;
4477}
4478
Michael Buesch40faacc2007-10-28 16:29:32 +01004479static void b43_op_remove_interface(struct ieee80211_hw *hw,
Johannes Berg1ed32e42009-12-23 13:15:45 +01004480 struct ieee80211_vif *vif)
Michael Buesche4d6b792007-09-18 15:39:42 -04004481{
4482 struct b43_wl *wl = hw_to_b43_wl(hw);
Johannes Berg4150c572007-09-17 01:29:23 -04004483 struct b43_wldev *dev = wl->current_dev;
Michael Buesche4d6b792007-09-18 15:39:42 -04004484
Johannes Berg1ed32e42009-12-23 13:15:45 +01004485 b43dbg(wl, "Removing Interface type %d\n", vif->type);
Michael Buesche4d6b792007-09-18 15:39:42 -04004486
4487 mutex_lock(&wl->mutex);
Johannes Berg4150c572007-09-17 01:29:23 -04004488
4489 B43_WARN_ON(!wl->operating);
Johannes Berg1ed32e42009-12-23 13:15:45 +01004490 B43_WARN_ON(wl->vif != vif);
Johannes Berg32bfd352007-12-19 01:31:26 +01004491 wl->vif = NULL;
Johannes Berg4150c572007-09-17 01:29:23 -04004492
4493 wl->operating = 0;
4494
Johannes Berg4150c572007-09-17 01:29:23 -04004495 b43_adjust_opmode(dev);
4496 memset(wl->mac_addr, 0, ETH_ALEN);
4497 b43_upload_card_macaddress(dev);
Johannes Berg4150c572007-09-17 01:29:23 -04004498
4499 mutex_unlock(&wl->mutex);
4500}
4501
Michael Buesch40faacc2007-10-28 16:29:32 +01004502static int b43_op_start(struct ieee80211_hw *hw)
Johannes Berg4150c572007-09-17 01:29:23 -04004503{
4504 struct b43_wl *wl = hw_to_b43_wl(hw);
4505 struct b43_wldev *dev = wl->current_dev;
4506 int did_init = 0;
WANG Cong923403b2007-10-16 14:29:38 -07004507 int err = 0;
Johannes Berg4150c572007-09-17 01:29:23 -04004508
Michael Buesch7be1bb62008-01-23 21:10:56 +01004509 /* Kill all old instance specific information to make sure
4510 * the card won't use it in the short timeframe between start
4511 * and mac80211 reconfiguring it. */
4512 memset(wl->bssid, 0, ETH_ALEN);
4513 memset(wl->mac_addr, 0, ETH_ALEN);
4514 wl->filter_flags = 0;
4515 wl->radiotap_enabled = 0;
Michael Buesche6f5b932008-03-05 21:18:49 +01004516 b43_qos_clear(wl);
Michael Buesch6b4bec012008-05-20 12:16:28 +02004517 wl->beacon0_uploaded = 0;
4518 wl->beacon1_uploaded = 0;
4519 wl->beacon_templates_virgin = 1;
Larry Fingerfd4973c2009-06-20 12:58:11 -05004520 wl->radio_enabled = 1;
Michael Buesch7be1bb62008-01-23 21:10:56 +01004521
Johannes Berg4150c572007-09-17 01:29:23 -04004522 mutex_lock(&wl->mutex);
4523
4524 if (b43_status(dev) < B43_STAT_INITIALIZED) {
4525 err = b43_wireless_core_init(dev);
Johannes Bergf41f3f32009-06-07 12:30:34 -05004526 if (err)
Johannes Berg4150c572007-09-17 01:29:23 -04004527 goto out_mutex_unlock;
4528 did_init = 1;
Michael Buesche4d6b792007-09-18 15:39:42 -04004529 }
4530
Johannes Berg4150c572007-09-17 01:29:23 -04004531 if (b43_status(dev) < B43_STAT_STARTED) {
4532 err = b43_wireless_core_start(dev);
4533 if (err) {
4534 if (did_init)
4535 b43_wireless_core_exit(dev);
4536 goto out_mutex_unlock;
4537 }
Michael Buesche4d6b792007-09-18 15:39:42 -04004538 }
Johannes Berg4150c572007-09-17 01:29:23 -04004539
Johannes Bergf41f3f32009-06-07 12:30:34 -05004540 /* XXX: only do if device doesn't support rfkill irq */
4541 wiphy_rfkill_start_polling(hw->wiphy);
4542
Johannes Berg4150c572007-09-17 01:29:23 -04004543 out_mutex_unlock:
4544 mutex_unlock(&wl->mutex);
4545
4546 return err;
4547}
4548
Michael Buesch40faacc2007-10-28 16:29:32 +01004549static void b43_op_stop(struct ieee80211_hw *hw)
Johannes Berg4150c572007-09-17 01:29:23 -04004550{
4551 struct b43_wl *wl = hw_to_b43_wl(hw);
4552 struct b43_wldev *dev = wl->current_dev;
4553
Michael Buescha82d9922008-04-04 21:40:06 +02004554 cancel_work_sync(&(wl->beacon_update_trigger));
Larry Finger1a8d1222007-12-14 13:59:11 +01004555
Johannes Berg4150c572007-09-17 01:29:23 -04004556 mutex_lock(&wl->mutex);
Michael Buesch36dbd952009-09-04 22:51:29 +02004557 if (b43_status(dev) >= B43_STAT_STARTED) {
4558 dev = b43_wireless_core_stop(dev);
4559 if (!dev)
4560 goto out_unlock;
4561 }
Johannes Berg4150c572007-09-17 01:29:23 -04004562 b43_wireless_core_exit(dev);
Larry Fingerfd4973c2009-06-20 12:58:11 -05004563 wl->radio_enabled = 0;
Michael Buesch36dbd952009-09-04 22:51:29 +02004564
4565out_unlock:
Michael Buesche4d6b792007-09-18 15:39:42 -04004566 mutex_unlock(&wl->mutex);
Michael Buesch18c8ade2008-08-28 19:33:40 +02004567
4568 cancel_work_sync(&(wl->txpower_adjust_work));
Michael Buesche4d6b792007-09-18 15:39:42 -04004569}
4570
Johannes Berg17741cd2008-09-11 00:02:02 +02004571static int b43_op_beacon_set_tim(struct ieee80211_hw *hw,
4572 struct ieee80211_sta *sta, bool set)
Michael Buesche66fee62007-12-26 17:47:10 +01004573{
4574 struct b43_wl *wl = hw_to_b43_wl(hw);
Michael Buesche66fee62007-12-26 17:47:10 +01004575
Felix Fietkau8f611282009-11-07 18:37:37 +01004576 /* FIXME: add locking */
Johannes Berg9d139c82008-07-09 14:40:37 +02004577 b43_update_templates(wl);
Michael Buesche66fee62007-12-26 17:47:10 +01004578
4579 return 0;
4580}
4581
Johannes Berg38968d02008-02-25 16:27:50 +01004582static void b43_op_sta_notify(struct ieee80211_hw *hw,
4583 struct ieee80211_vif *vif,
4584 enum sta_notify_cmd notify_cmd,
Johannes Berg17741cd2008-09-11 00:02:02 +02004585 struct ieee80211_sta *sta)
Johannes Berg38968d02008-02-25 16:27:50 +01004586{
4587 struct b43_wl *wl = hw_to_b43_wl(hw);
4588
4589 B43_WARN_ON(!vif || wl->vif != vif);
4590}
4591
Michael Buesch25d3ef52009-02-20 15:39:21 +01004592static void b43_op_sw_scan_start_notifier(struct ieee80211_hw *hw)
4593{
4594 struct b43_wl *wl = hw_to_b43_wl(hw);
4595 struct b43_wldev *dev;
4596
4597 mutex_lock(&wl->mutex);
4598 dev = wl->current_dev;
4599 if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) {
4600 /* Disable CFP update during scan on other channels. */
4601 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_SKCFPUP);
4602 }
4603 mutex_unlock(&wl->mutex);
4604}
4605
4606static void b43_op_sw_scan_complete_notifier(struct ieee80211_hw *hw)
4607{
4608 struct b43_wl *wl = hw_to_b43_wl(hw);
4609 struct b43_wldev *dev;
4610
4611 mutex_lock(&wl->mutex);
4612 dev = wl->current_dev;
4613 if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) {
4614 /* Re-enable CFP update. */
4615 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_SKCFPUP);
4616 }
4617 mutex_unlock(&wl->mutex);
4618}
4619
John W. Linville354b4f02010-04-29 15:56:06 -04004620static int b43_op_get_survey(struct ieee80211_hw *hw, int idx,
4621 struct survey_info *survey)
4622{
4623 struct b43_wl *wl = hw_to_b43_wl(hw);
4624 struct b43_wldev *dev = wl->current_dev;
4625 struct ieee80211_conf *conf = &hw->conf;
4626
4627 if (idx != 0)
4628 return -ENOENT;
4629
4630 survey->channel = conf->channel;
4631 survey->filled = SURVEY_INFO_NOISE_DBM;
4632 survey->noise = dev->stats.link_noise;
4633
4634 return 0;
4635}
4636
Michael Buesche4d6b792007-09-18 15:39:42 -04004637static const struct ieee80211_ops b43_hw_ops = {
Michael Buesch40faacc2007-10-28 16:29:32 +01004638 .tx = b43_op_tx,
4639 .conf_tx = b43_op_conf_tx,
4640 .add_interface = b43_op_add_interface,
4641 .remove_interface = b43_op_remove_interface,
4642 .config = b43_op_config,
Johannes Bergc7ab5ef2008-10-29 20:02:12 +01004643 .bss_info_changed = b43_op_bss_info_changed,
Michael Buesch40faacc2007-10-28 16:29:32 +01004644 .configure_filter = b43_op_configure_filter,
4645 .set_key = b43_op_set_key,
gregor kowski035d0242009-08-19 22:35:45 +02004646 .update_tkip_key = b43_op_update_tkip_key,
Michael Buesch40faacc2007-10-28 16:29:32 +01004647 .get_stats = b43_op_get_stats,
Alina Friedrichsen08e87a82009-01-25 15:28:28 +01004648 .get_tsf = b43_op_get_tsf,
4649 .set_tsf = b43_op_set_tsf,
Michael Buesch40faacc2007-10-28 16:29:32 +01004650 .start = b43_op_start,
4651 .stop = b43_op_stop,
Michael Buesche66fee62007-12-26 17:47:10 +01004652 .set_tim = b43_op_beacon_set_tim,
Johannes Berg38968d02008-02-25 16:27:50 +01004653 .sta_notify = b43_op_sta_notify,
Michael Buesch25d3ef52009-02-20 15:39:21 +01004654 .sw_scan_start = b43_op_sw_scan_start_notifier,
4655 .sw_scan_complete = b43_op_sw_scan_complete_notifier,
John W. Linville354b4f02010-04-29 15:56:06 -04004656 .get_survey = b43_op_get_survey,
Johannes Bergf41f3f32009-06-07 12:30:34 -05004657 .rfkill_poll = b43_rfkill_poll,
Michael Buesche4d6b792007-09-18 15:39:42 -04004658};
4659
4660/* Hard-reset the chip. Do not call this directly.
4661 * Use b43_controller_restart()
4662 */
4663static void b43_chip_reset(struct work_struct *work)
4664{
4665 struct b43_wldev *dev =
4666 container_of(work, struct b43_wldev, restart_work);
4667 struct b43_wl *wl = dev->wl;
4668 int err = 0;
4669 int prev_status;
4670
4671 mutex_lock(&wl->mutex);
4672
4673 prev_status = b43_status(dev);
4674 /* Bring the device down... */
Michael Buesch36dbd952009-09-04 22:51:29 +02004675 if (prev_status >= B43_STAT_STARTED) {
4676 dev = b43_wireless_core_stop(dev);
4677 if (!dev) {
4678 err = -ENODEV;
4679 goto out;
4680 }
4681 }
Michael Buesche4d6b792007-09-18 15:39:42 -04004682 if (prev_status >= B43_STAT_INITIALIZED)
4683 b43_wireless_core_exit(dev);
4684
4685 /* ...and up again. */
4686 if (prev_status >= B43_STAT_INITIALIZED) {
4687 err = b43_wireless_core_init(dev);
4688 if (err)
4689 goto out;
4690 }
4691 if (prev_status >= B43_STAT_STARTED) {
4692 err = b43_wireless_core_start(dev);
4693 if (err) {
4694 b43_wireless_core_exit(dev);
4695 goto out;
4696 }
4697 }
Michael Buesch3bf0a322008-05-22 16:32:16 +02004698out:
4699 if (err)
4700 wl->current_dev = NULL; /* Failed to init the dev. */
Michael Buesche4d6b792007-09-18 15:39:42 -04004701 mutex_unlock(&wl->mutex);
4702 if (err)
4703 b43err(wl, "Controller restart FAILED\n");
4704 else
4705 b43info(wl, "Controller restarted\n");
4706}
4707
Michael Bueschbb1eeff2008-02-09 12:08:58 +01004708static int b43_setup_bands(struct b43_wldev *dev,
Michael Buesch96c755a2008-01-06 00:09:46 +01004709 bool have_2ghz_phy, bool have_5ghz_phy)
Michael Buesche4d6b792007-09-18 15:39:42 -04004710{
4711 struct ieee80211_hw *hw = dev->wl->hw;
Michael Buesche4d6b792007-09-18 15:39:42 -04004712
Michael Bueschbb1eeff2008-02-09 12:08:58 +01004713 if (have_2ghz_phy)
4714 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz;
4715 if (dev->phy.type == B43_PHYTYPE_N) {
4716 if (have_5ghz_phy)
4717 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_nphy;
4718 } else {
4719 if (have_5ghz_phy)
4720 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy;
4721 }
Michael Buesche4d6b792007-09-18 15:39:42 -04004722
Michael Bueschbb1eeff2008-02-09 12:08:58 +01004723 dev->phy.supports_2ghz = have_2ghz_phy;
4724 dev->phy.supports_5ghz = have_5ghz_phy;
Michael Buesche4d6b792007-09-18 15:39:42 -04004725
4726 return 0;
4727}
4728
4729static void b43_wireless_core_detach(struct b43_wldev *dev)
4730{
4731 /* We release firmware that late to not be required to re-request
4732 * is all the time when we reinit the core. */
4733 b43_release_firmware(dev);
Michael Bueschfb111372008-09-02 13:00:34 +02004734 b43_phy_free(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004735}
4736
4737static int b43_wireless_core_attach(struct b43_wldev *dev)
4738{
4739 struct b43_wl *wl = dev->wl;
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004740 struct ssb_bus *bus = dev->sdev->bus;
Michael Buesch899110f2009-10-09 20:30:10 +02004741 struct pci_dev *pdev = (bus->bustype == SSB_BUSTYPE_PCI) ? bus->host_pci : NULL;
Michael Buesche4d6b792007-09-18 15:39:42 -04004742 int err;
Michael Buesch96c755a2008-01-06 00:09:46 +01004743 bool have_2ghz_phy = 0, have_5ghz_phy = 0;
Michael Buesche4d6b792007-09-18 15:39:42 -04004744 u32 tmp;
4745
4746 /* Do NOT do any device initialization here.
4747 * Do it in wireless_core_init() instead.
4748 * This function is for gathering basic information about the HW, only.
4749 * Also some structs may be set up here. But most likely you want to have
4750 * that in core_init(), too.
4751 */
4752
4753 err = ssb_bus_powerup(bus, 0);
4754 if (err) {
4755 b43err(wl, "Bus powerup failed\n");
4756 goto out;
4757 }
4758 /* Get the PHY type. */
Rafał Miłecki21d889d2011-05-18 02:06:38 +02004759 if (dev->dev->core_rev >= 5) {
Michael Buesche4d6b792007-09-18 15:39:42 -04004760 u32 tmshigh;
4761
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004762 tmshigh = ssb_read32(dev->sdev, SSB_TMSHIGH);
Michael Buesch96c755a2008-01-06 00:09:46 +01004763 have_2ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY);
4764 have_5ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_5GHZ_PHY);
Michael Buesche4d6b792007-09-18 15:39:42 -04004765 } else
Michael Buesch96c755a2008-01-06 00:09:46 +01004766 B43_WARN_ON(1);
Michael Buesche4d6b792007-09-18 15:39:42 -04004767
Michael Buesch96c755a2008-01-06 00:09:46 +01004768 dev->phy.gmode = have_2ghz_phy;
Larry Fingerfd4973c2009-06-20 12:58:11 -05004769 dev->phy.radio_on = 1;
Michael Buesche4d6b792007-09-18 15:39:42 -04004770 tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
4771 b43_wireless_core_reset(dev, tmp);
4772
4773 err = b43_phy_versioning(dev);
4774 if (err)
Michael Buesch21954c32007-09-27 15:31:40 +02004775 goto err_powerdown;
Michael Buesche4d6b792007-09-18 15:39:42 -04004776 /* Check if this device supports multiband. */
4777 if (!pdev ||
4778 (pdev->device != 0x4312 &&
4779 pdev->device != 0x4319 && pdev->device != 0x4324)) {
4780 /* No multiband support. */
Michael Buesch96c755a2008-01-06 00:09:46 +01004781 have_2ghz_phy = 0;
4782 have_5ghz_phy = 0;
Michael Buesche4d6b792007-09-18 15:39:42 -04004783 switch (dev->phy.type) {
4784 case B43_PHYTYPE_A:
Michael Buesch96c755a2008-01-06 00:09:46 +01004785 have_5ghz_phy = 1;
Michael Buesche4d6b792007-09-18 15:39:42 -04004786 break;
Gábor Stefanik9d86a2d2009-08-14 14:54:46 +02004787 case B43_PHYTYPE_LP: //FIXME not always!
Gábor Stefanik86b28922009-08-16 20:22:41 +02004788#if 0 //FIXME enabling 5GHz causes a NULL pointer dereference
Gábor Stefanik9d86a2d2009-08-14 14:54:46 +02004789 have_5ghz_phy = 1;
Gábor Stefanik86b28922009-08-16 20:22:41 +02004790#endif
Michael Buesche4d6b792007-09-18 15:39:42 -04004791 case B43_PHYTYPE_G:
Michael Buesch96c755a2008-01-06 00:09:46 +01004792 case B43_PHYTYPE_N:
4793 have_2ghz_phy = 1;
Michael Buesche4d6b792007-09-18 15:39:42 -04004794 break;
4795 default:
4796 B43_WARN_ON(1);
4797 }
4798 }
Michael Buesch96c755a2008-01-06 00:09:46 +01004799 if (dev->phy.type == B43_PHYTYPE_A) {
4800 /* FIXME */
4801 b43err(wl, "IEEE 802.11a devices are unsupported\n");
4802 err = -EOPNOTSUPP;
4803 goto err_powerdown;
4804 }
Michael Buesch2e35af12008-04-27 19:06:18 +02004805 if (1 /* disable A-PHY */) {
4806 /* FIXME: For now we disable the A-PHY on multi-PHY devices. */
Gábor Stefanik9d86a2d2009-08-14 14:54:46 +02004807 if (dev->phy.type != B43_PHYTYPE_N &&
4808 dev->phy.type != B43_PHYTYPE_LP) {
Michael Buesch2e35af12008-04-27 19:06:18 +02004809 have_2ghz_phy = 1;
4810 have_5ghz_phy = 0;
4811 }
4812 }
4813
Michael Bueschfb111372008-09-02 13:00:34 +02004814 err = b43_phy_allocate(dev);
4815 if (err)
4816 goto err_powerdown;
4817
Michael Buesch96c755a2008-01-06 00:09:46 +01004818 dev->phy.gmode = have_2ghz_phy;
Michael Buesche4d6b792007-09-18 15:39:42 -04004819 tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0;
4820 b43_wireless_core_reset(dev, tmp);
4821
4822 err = b43_validate_chipaccess(dev);
4823 if (err)
Michael Bueschfb111372008-09-02 13:00:34 +02004824 goto err_phy_free;
Michael Bueschbb1eeff2008-02-09 12:08:58 +01004825 err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy);
Michael Buesche4d6b792007-09-18 15:39:42 -04004826 if (err)
Michael Bueschfb111372008-09-02 13:00:34 +02004827 goto err_phy_free;
Michael Buesche4d6b792007-09-18 15:39:42 -04004828
4829 /* Now set some default "current_dev" */
4830 if (!wl->current_dev)
4831 wl->current_dev = dev;
4832 INIT_WORK(&dev->restart_work, b43_chip_reset);
4833
Michael Bueschcb24f572008-09-03 12:12:20 +02004834 dev->phy.ops->switch_analog(dev, 0);
Rafał Miłeckidedb1eb2011-05-14 00:04:38 +02004835 ssb_device_disable(dev->sdev, 0);
Michael Buesche4d6b792007-09-18 15:39:42 -04004836 ssb_bus_may_powerdown(bus);
4837
4838out:
4839 return err;
4840
Michael Bueschfb111372008-09-02 13:00:34 +02004841err_phy_free:
4842 b43_phy_free(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004843err_powerdown:
4844 ssb_bus_may_powerdown(bus);
4845 return err;
4846}
4847
Rafał Miłecki482f0532011-05-18 02:06:36 +02004848static void b43_one_core_detach(struct b43_bus_dev *dev)
Michael Buesche4d6b792007-09-18 15:39:42 -04004849{
4850 struct b43_wldev *wldev;
4851 struct b43_wl *wl;
4852
Michael Buesch3bf0a322008-05-22 16:32:16 +02004853 /* Do not cancel ieee80211-workqueue based work here.
4854 * See comment in b43_remove(). */
4855
Rafał Miłecki482f0532011-05-18 02:06:36 +02004856 wldev = ssb_get_drvdata(dev->sdev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004857 wl = wldev->wl;
Michael Buesche4d6b792007-09-18 15:39:42 -04004858 b43_debugfs_remove_device(wldev);
4859 b43_wireless_core_detach(wldev);
4860 list_del(&wldev->list);
4861 wl->nr_devs--;
Rafał Miłecki482f0532011-05-18 02:06:36 +02004862 ssb_set_drvdata(dev->sdev, NULL);
Michael Buesche4d6b792007-09-18 15:39:42 -04004863 kfree(wldev);
4864}
4865
Rafał Miłecki482f0532011-05-18 02:06:36 +02004866static int b43_one_core_attach(struct b43_bus_dev *dev, struct b43_wl *wl)
Michael Buesche4d6b792007-09-18 15:39:42 -04004867{
4868 struct b43_wldev *wldev;
Michael Buesche4d6b792007-09-18 15:39:42 -04004869 int err = -ENOMEM;
4870
Michael Buesche4d6b792007-09-18 15:39:42 -04004871 wldev = kzalloc(sizeof(*wldev), GFP_KERNEL);
4872 if (!wldev)
4873 goto out;
4874
Linus Torvalds9e3bd912010-02-26 10:34:27 -08004875 wldev->use_pio = b43_modparam_pio;
Rafał Miłecki482f0532011-05-18 02:06:36 +02004876 wldev->dev = dev;
4877 wldev->sdev = dev->sdev; /* TODO: Remove when not needed */
Michael Buesche4d6b792007-09-18 15:39:42 -04004878 wldev->wl = wl;
4879 b43_set_status(wldev, B43_STAT_UNINIT);
4880 wldev->bad_frames_preempt = modparam_bad_frames_preempt;
Michael Buesche4d6b792007-09-18 15:39:42 -04004881 INIT_LIST_HEAD(&wldev->list);
4882
4883 err = b43_wireless_core_attach(wldev);
4884 if (err)
4885 goto err_kfree_wldev;
4886
4887 list_add(&wldev->list, &wl->devlist);
4888 wl->nr_devs++;
Rafał Miłecki482f0532011-05-18 02:06:36 +02004889 ssb_set_drvdata(dev->sdev, wldev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004890 b43_debugfs_add_device(wldev);
4891
4892 out:
4893 return err;
4894
4895 err_kfree_wldev:
4896 kfree(wldev);
4897 return err;
4898}
4899
Michael Buesch9fc38452008-04-19 16:53:00 +02004900#define IS_PDEV(pdev, _vendor, _device, _subvendor, _subdevice) ( \
4901 (pdev->vendor == PCI_VENDOR_ID_##_vendor) && \
4902 (pdev->device == _device) && \
4903 (pdev->subsystem_vendor == PCI_VENDOR_ID_##_subvendor) && \
4904 (pdev->subsystem_device == _subdevice) )
4905
Michael Buesche4d6b792007-09-18 15:39:42 -04004906static void b43_sprom_fixup(struct ssb_bus *bus)
4907{
Michael Buesch1855ba72008-04-18 20:51:41 +02004908 struct pci_dev *pdev;
4909
Michael Buesche4d6b792007-09-18 15:39:42 -04004910 /* boardflags workarounds */
4911 if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL &&
4912 bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74)
Larry Finger95de2842007-11-09 16:57:18 -06004913 bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST;
Michael Buesche4d6b792007-09-18 15:39:42 -04004914 if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE &&
4915 bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40)
Larry Finger95de2842007-11-09 16:57:18 -06004916 bus->sprom.boardflags_lo |= B43_BFL_PACTRL;
Michael Buesch1855ba72008-04-18 20:51:41 +02004917 if (bus->bustype == SSB_BUSTYPE_PCI) {
4918 pdev = bus->host_pci;
Michael Buesch9fc38452008-04-19 16:53:00 +02004919 if (IS_PDEV(pdev, BROADCOM, 0x4318, ASUSTEK, 0x100F) ||
Larry Finger430cd472008-08-14 18:57:11 -05004920 IS_PDEV(pdev, BROADCOM, 0x4320, DELL, 0x0003) ||
Larry Finger570bdfb2008-09-26 08:23:00 -05004921 IS_PDEV(pdev, BROADCOM, 0x4320, HP, 0x12f8) ||
Michael Buesch9fc38452008-04-19 16:53:00 +02004922 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0015) ||
Larry Fingera58d4522008-08-10 10:19:33 -05004923 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0014) ||
Larry Finger3bb91bf2008-09-19 14:47:38 -05004924 IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0013) ||
4925 IS_PDEV(pdev, BROADCOM, 0x4320, MOTOROLA, 0x7010))
Michael Buesch1855ba72008-04-18 20:51:41 +02004926 bus->sprom.boardflags_lo &= ~B43_BFL_BTCOEXIST;
4927 }
Michael Buesche4d6b792007-09-18 15:39:42 -04004928}
4929
Rafał Miłecki482f0532011-05-18 02:06:36 +02004930static void b43_wireless_exit(struct b43_bus_dev *dev, struct b43_wl *wl)
Michael Buesche4d6b792007-09-18 15:39:42 -04004931{
4932 struct ieee80211_hw *hw = wl->hw;
4933
Rafał Miłecki482f0532011-05-18 02:06:36 +02004934 ssb_set_devtypedata(dev->sdev, NULL);
Michael Buesche4d6b792007-09-18 15:39:42 -04004935 ieee80211_free_hw(hw);
4936}
4937
Rafał Miłecki0355a342011-05-17 14:00:01 +02004938static struct b43_wl *b43_wireless_init(struct ssb_device *dev)
Michael Buesche4d6b792007-09-18 15:39:42 -04004939{
4940 struct ssb_sprom *sprom = &dev->bus->sprom;
4941 struct ieee80211_hw *hw;
4942 struct b43_wl *wl;
Michael Buesche4d6b792007-09-18 15:39:42 -04004943
4944 hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops);
4945 if (!hw) {
4946 b43err(NULL, "Could not allocate ieee80211 device\n");
Rafał Miłecki0355a342011-05-17 14:00:01 +02004947 return ERR_PTR(-ENOMEM);
Michael Buesche4d6b792007-09-18 15:39:42 -04004948 }
Michael Buesch403a3a12009-06-08 21:04:57 +02004949 wl = hw_to_b43_wl(hw);
Michael Buesche4d6b792007-09-18 15:39:42 -04004950
4951 /* fill hw info */
Johannes Berg605a0bd2008-07-15 10:10:01 +02004952 hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
John W. Linvillef5c044e2010-04-30 15:37:00 -04004953 IEEE80211_HW_SIGNAL_DBM;
Bruno Randolf566bfe52008-05-08 19:15:40 +02004954
Luis R. Rodriguezf59ac042008-08-29 16:26:43 -07004955 hw->wiphy->interface_modes =
4956 BIT(NL80211_IFTYPE_AP) |
4957 BIT(NL80211_IFTYPE_MESH_POINT) |
4958 BIT(NL80211_IFTYPE_STATION) |
4959 BIT(NL80211_IFTYPE_WDS) |
4960 BIT(NL80211_IFTYPE_ADHOC);
4961
Michael Buesch403a3a12009-06-08 21:04:57 +02004962 hw->queues = modparam_qos ? 4 : 1;
4963 wl->mac80211_initially_registered_queues = hw->queues;
Johannes Berge6a98542008-10-21 12:40:02 +02004964 hw->max_rates = 2;
Michael Buesche4d6b792007-09-18 15:39:42 -04004965 SET_IEEE80211_DEV(hw, dev->dev);
Larry Finger95de2842007-11-09 16:57:18 -06004966 if (is_valid_ether_addr(sprom->et1mac))
4967 SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac);
Michael Buesche4d6b792007-09-18 15:39:42 -04004968 else
Larry Finger95de2842007-11-09 16:57:18 -06004969 SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac);
Michael Buesche4d6b792007-09-18 15:39:42 -04004970
Michael Buesch403a3a12009-06-08 21:04:57 +02004971 /* Initialize struct b43_wl */
Michael Buesche4d6b792007-09-18 15:39:42 -04004972 wl->hw = hw;
Michael Buesche4d6b792007-09-18 15:39:42 -04004973 mutex_init(&wl->mutex);
Michael Buesch36dbd952009-09-04 22:51:29 +02004974 spin_lock_init(&wl->hardirq_lock);
Michael Buesche4d6b792007-09-18 15:39:42 -04004975 INIT_LIST_HEAD(&wl->devlist);
Michael Buescha82d9922008-04-04 21:40:06 +02004976 INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work);
Michael Buesch18c8ade2008-08-28 19:33:40 +02004977 INIT_WORK(&wl->txpower_adjust_work, b43_phy_txpower_adjust_work);
Michael Bueschf5d40ee2009-09-04 22:53:18 +02004978 INIT_WORK(&wl->tx_work, b43_tx_work);
4979 skb_queue_head_init(&wl->tx_queue);
Michael Buesche4d6b792007-09-18 15:39:42 -04004980
Michael Buesch060210f2009-01-25 15:49:59 +01004981 b43info(wl, "Broadcom %04X WLAN found (core revision %u)\n",
4982 dev->bus->chip_id, dev->id.revision);
Rafał Miłecki0355a342011-05-17 14:00:01 +02004983 return wl;
Michael Buesche4d6b792007-09-18 15:39:42 -04004984}
4985
Rafał Miłeckiaa634182011-05-18 02:06:35 +02004986static
4987int b43_ssb_probe(struct ssb_device *sdev, const struct ssb_device_id *id)
Michael Buesche4d6b792007-09-18 15:39:42 -04004988{
Rafał Miłecki482f0532011-05-18 02:06:36 +02004989 struct b43_bus_dev *dev;
Michael Buesche4d6b792007-09-18 15:39:42 -04004990 struct b43_wl *wl;
4991 int err;
4992 int first = 0;
4993
Rafał Miłecki482f0532011-05-18 02:06:36 +02004994 dev = b43_bus_dev_ssb_init(sdev);
4995
Rafał Miłeckiaa634182011-05-18 02:06:35 +02004996 wl = ssb_get_devtypedata(sdev);
Michael Buesche4d6b792007-09-18 15:39:42 -04004997 if (!wl) {
4998 /* Probing the first core. Must setup common struct b43_wl */
4999 first = 1;
Rafał Miłeckiaa634182011-05-18 02:06:35 +02005000 b43_sprom_fixup(sdev->bus);
5001 wl = b43_wireless_init(sdev);
Rafał Miłecki0355a342011-05-17 14:00:01 +02005002 if (IS_ERR(wl)) {
5003 err = PTR_ERR(wl);
Michael Buesche4d6b792007-09-18 15:39:42 -04005004 goto out;
Rafał Miłecki0355a342011-05-17 14:00:01 +02005005 }
Rafał Miłeckiaa634182011-05-18 02:06:35 +02005006 ssb_set_devtypedata(sdev, wl);
5007 B43_WARN_ON(ssb_get_devtypedata(sdev) != wl);
Michael Buesche4d6b792007-09-18 15:39:42 -04005008 }
Rafał Miłecki482f0532011-05-18 02:06:36 +02005009 err = b43_one_core_attach(dev, wl);
Michael Buesche4d6b792007-09-18 15:39:42 -04005010 if (err)
5011 goto err_wireless_exit;
5012
5013 if (first) {
5014 err = ieee80211_register_hw(wl->hw);
5015 if (err)
5016 goto err_one_core_detach;
Michael Buescha78b3bb2009-09-11 21:44:05 +02005017 b43_leds_register(wl->current_dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04005018 }
5019
5020 out:
5021 return err;
5022
5023 err_one_core_detach:
Rafał Miłecki482f0532011-05-18 02:06:36 +02005024 b43_one_core_detach(dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04005025 err_wireless_exit:
5026 if (first)
Rafał Miłecki482f0532011-05-18 02:06:36 +02005027 b43_wireless_exit(dev, wl);
Michael Buesche4d6b792007-09-18 15:39:42 -04005028 return err;
5029}
5030
Rafał Miłeckiaa634182011-05-18 02:06:35 +02005031static void b43_ssb_remove(struct ssb_device *sdev)
Michael Buesche4d6b792007-09-18 15:39:42 -04005032{
Rafał Miłeckiaa634182011-05-18 02:06:35 +02005033 struct b43_wl *wl = ssb_get_devtypedata(sdev);
5034 struct b43_wldev *wldev = ssb_get_drvdata(sdev);
Michael Buesche4d6b792007-09-18 15:39:42 -04005035
Michael Buesch3bf0a322008-05-22 16:32:16 +02005036 /* We must cancel any work here before unregistering from ieee80211,
5037 * as the ieee80211 unreg will destroy the workqueue. */
5038 cancel_work_sync(&wldev->restart_work);
5039
Michael Buesche4d6b792007-09-18 15:39:42 -04005040 B43_WARN_ON(!wl);
Michael Buesch403a3a12009-06-08 21:04:57 +02005041 if (wl->current_dev == wldev) {
5042 /* Restore the queues count before unregistering, because firmware detect
5043 * might have modified it. Restoring is important, so the networking
5044 * stack can properly free resources. */
5045 wl->hw->queues = wl->mac80211_initially_registered_queues;
Albert Herranz82905ac2009-09-16 00:26:19 +02005046 b43_leds_stop(wldev);
Michael Buesche4d6b792007-09-18 15:39:42 -04005047 ieee80211_unregister_hw(wl->hw);
Michael Buesch403a3a12009-06-08 21:04:57 +02005048 }
Michael Buesche4d6b792007-09-18 15:39:42 -04005049
Rafał Miłecki482f0532011-05-18 02:06:36 +02005050 b43_one_core_detach(wldev->dev);
Michael Buesche4d6b792007-09-18 15:39:42 -04005051
5052 if (list_empty(&wl->devlist)) {
Michael Buesch727c9882009-10-01 15:54:32 +02005053 b43_leds_unregister(wl);
Michael Buesche4d6b792007-09-18 15:39:42 -04005054 /* Last core on the chip unregistered.
5055 * We can destroy common struct b43_wl.
5056 */
Rafał Miłecki482f0532011-05-18 02:06:36 +02005057 b43_wireless_exit(wldev->dev, wl);
Michael Buesche4d6b792007-09-18 15:39:42 -04005058 }
5059}
5060
5061/* Perform a hardware reset. This can be called from any context. */
5062void b43_controller_restart(struct b43_wldev *dev, const char *reason)
5063{
5064 /* Must avoid requeueing, if we are in shutdown. */
5065 if (b43_status(dev) < B43_STAT_INITIALIZED)
5066 return;
5067 b43info(dev->wl, "Controller RESET (%s) ...\n", reason);
Luis R. Rodriguez42935ec2009-07-29 20:08:07 -04005068 ieee80211_queue_work(dev->wl->hw, &dev->restart_work);
Michael Buesche4d6b792007-09-18 15:39:42 -04005069}
5070
Michael Buesche4d6b792007-09-18 15:39:42 -04005071static struct ssb_driver b43_ssb_driver = {
5072 .name = KBUILD_MODNAME,
5073 .id_table = b43_ssb_tbl,
Rafał Miłecki5ee9c6a2011-05-09 00:21:18 +02005074 .probe = b43_ssb_probe,
5075 .remove = b43_ssb_remove,
Michael Buesche4d6b792007-09-18 15:39:42 -04005076};
5077
Michael Buesch26bc7832008-02-09 00:18:35 +01005078static void b43_print_driverinfo(void)
5079{
5080 const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "",
Albert Herranz3dbba8e2009-09-10 19:34:49 +02005081 *feat_leds = "", *feat_sdio = "";
Michael Buesch26bc7832008-02-09 00:18:35 +01005082
5083#ifdef CONFIG_B43_PCI_AUTOSELECT
5084 feat_pci = "P";
5085#endif
5086#ifdef CONFIG_B43_PCMCIA
5087 feat_pcmcia = "M";
5088#endif
Rafał Miłecki692d2c02010-12-07 21:56:00 +01005089#ifdef CONFIG_B43_PHY_N
Michael Buesch26bc7832008-02-09 00:18:35 +01005090 feat_nphy = "N";
5091#endif
5092#ifdef CONFIG_B43_LEDS
5093 feat_leds = "L";
5094#endif
Albert Herranz3dbba8e2009-09-10 19:34:49 +02005095#ifdef CONFIG_B43_SDIO
5096 feat_sdio = "S";
5097#endif
Michael Buesch26bc7832008-02-09 00:18:35 +01005098 printk(KERN_INFO "Broadcom 43xx driver loaded "
Albert Herranz3dbba8e2009-09-10 19:34:49 +02005099 "[ Features: %s%s%s%s%s, Firmware-ID: "
Michael Buesch26bc7832008-02-09 00:18:35 +01005100 B43_SUPPORTED_FIRMWARE_ID " ]\n",
5101 feat_pci, feat_pcmcia, feat_nphy,
Albert Herranz3dbba8e2009-09-10 19:34:49 +02005102 feat_leds, feat_sdio);
Michael Buesch26bc7832008-02-09 00:18:35 +01005103}
5104
Michael Buesche4d6b792007-09-18 15:39:42 -04005105static int __init b43_init(void)
5106{
5107 int err;
5108
5109 b43_debugfs_init();
5110 err = b43_pcmcia_init();
5111 if (err)
5112 goto err_dfs_exit;
Albert Herranz3dbba8e2009-09-10 19:34:49 +02005113 err = b43_sdio_init();
Michael Buesche4d6b792007-09-18 15:39:42 -04005114 if (err)
5115 goto err_pcmcia_exit;
Albert Herranz3dbba8e2009-09-10 19:34:49 +02005116 err = ssb_driver_register(&b43_ssb_driver);
5117 if (err)
5118 goto err_sdio_exit;
Michael Buesch26bc7832008-02-09 00:18:35 +01005119 b43_print_driverinfo();
Michael Buesche4d6b792007-09-18 15:39:42 -04005120
5121 return err;
5122
Albert Herranz3dbba8e2009-09-10 19:34:49 +02005123err_sdio_exit:
5124 b43_sdio_exit();
Michael Buesche4d6b792007-09-18 15:39:42 -04005125err_pcmcia_exit:
5126 b43_pcmcia_exit();
5127err_dfs_exit:
5128 b43_debugfs_exit();
5129 return err;
5130}
5131
5132static void __exit b43_exit(void)
5133{
5134 ssb_driver_unregister(&b43_ssb_driver);
Albert Herranz3dbba8e2009-09-10 19:34:49 +02005135 b43_sdio_exit();
Michael Buesche4d6b792007-09-18 15:39:42 -04005136 b43_pcmcia_exit();
5137 b43_debugfs_exit();
5138}
5139
5140module_init(b43_init)
5141module_exit(b43_exit)