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e4d6b795 MB |
1 | /* |
2 | ||
3 | Broadcom B43 wireless driver | |
4 | ||
5 | Copyright (c) 2005 Martin Langer <martin-langer@gmx.de> | |
1f21ad2a | 6 | Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it> |
060210f9 | 7 | Copyright (c) 2005-2009 Michael Buesch <mb@bu3sch.de> |
e4d6b795 MB |
8 | Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org> |
9 | Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch> | |
10 | ||
3dbba8e2 AH |
11 | SDIO support |
12 | Copyright (c) 2009 Albert Herranz <albert_herranz@yahoo.es> | |
13 | ||
e4d6b795 MB |
14 | 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> | |
e4d6b795 MB |
39 | #include <linux/firmware.h> |
40 | #include <linux/wireless.h> | |
41 | #include <linux/workqueue.h> | |
42 | #include <linux/skbuff.h> | |
96cf49a2 | 43 | #include <linux/io.h> |
e4d6b795 MB |
44 | #include <linux/dma-mapping.h> |
45 | #include <asm/unaligned.h> | |
46 | ||
47 | #include "b43.h" | |
48 | #include "main.h" | |
49 | #include "debugfs.h" | |
ef1a628d MB |
50 | #include "phy_common.h" |
51 | #include "phy_g.h" | |
3d0da751 | 52 | #include "phy_n.h" |
e4d6b795 | 53 | #include "dma.h" |
5100d5ac | 54 | #include "pio.h" |
e4d6b795 MB |
55 | #include "sysfs.h" |
56 | #include "xmit.h" | |
e4d6b795 MB |
57 | #include "lo.h" |
58 | #include "pcmcia.h" | |
3dbba8e2 AH |
59 | #include "sdio.h" |
60 | #include <linux/mmc/sdio_func.h> | |
e4d6b795 MB |
61 | |
62 | MODULE_DESCRIPTION("Broadcom B43 wireless driver"); | |
63 | MODULE_AUTHOR("Martin Langer"); | |
64 | MODULE_AUTHOR("Stefano Brivio"); | |
65 | MODULE_AUTHOR("Michael Buesch"); | |
0136e51e | 66 | MODULE_AUTHOR("Gábor Stefanik"); |
e4d6b795 MB |
67 | MODULE_LICENSE("GPL"); |
68 | ||
9c7d99d6 MB |
69 | MODULE_FIRMWARE(B43_SUPPORTED_FIRMWARE_ID); |
70 | ||
e4d6b795 MB |
71 | |
72 | static int modparam_bad_frames_preempt; | |
73 | module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444); | |
74 | MODULE_PARM_DESC(bad_frames_preempt, | |
75 | "enable(1) / disable(0) Bad Frames Preemption"); | |
76 | ||
e4d6b795 MB |
77 | static char modparam_fwpostfix[16]; |
78 | module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444); | |
79 | MODULE_PARM_DESC(fwpostfix, "Postfix for the .fw files to load."); | |
80 | ||
e4d6b795 MB |
81 | static int modparam_hwpctl; |
82 | module_param_named(hwpctl, modparam_hwpctl, int, 0444); | |
83 | MODULE_PARM_DESC(hwpctl, "Enable hardware-side power control (default off)"); | |
84 | ||
85 | static int modparam_nohwcrypt; | |
86 | module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); | |
87 | MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption."); | |
88 | ||
035d0243 | 89 | static int modparam_hwtkip; |
90 | module_param_named(hwtkip, modparam_hwtkip, int, 0444); | |
91 | MODULE_PARM_DESC(hwtkip, "Enable hardware tkip."); | |
92 | ||
403a3a13 MB |
93 | static int modparam_qos = 1; |
94 | module_param_named(qos, modparam_qos, int, 0444); | |
e6f5b934 MB |
95 | MODULE_PARM_DESC(qos, "Enable QOS support (default on)"); |
96 | ||
1855ba78 MB |
97 | static int modparam_btcoex = 1; |
98 | module_param_named(btcoex, modparam_btcoex, int, 0444); | |
c71dbd33 | 99 | MODULE_PARM_DESC(btcoex, "Enable Bluetooth coexistence (default on)"); |
1855ba78 | 100 | |
060210f9 MB |
101 | int b43_modparam_verbose = B43_VERBOSITY_DEFAULT; |
102 | module_param_named(verbose, b43_modparam_verbose, int, 0644); | |
103 | MODULE_PARM_DESC(verbose, "Log message verbosity: 0=error, 1=warn, 2=info(default), 3=debug"); | |
104 | ||
e6f5b934 | 105 | |
e4d6b795 MB |
106 | static const struct ssb_device_id b43_ssb_tbl[] = { |
107 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5), | |
108 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6), | |
109 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7), | |
110 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9), | |
111 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10), | |
d5c71e46 | 112 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11), |
013978b6 | 113 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13), |
6b1c7c67 | 114 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 15), |
92d6128e | 115 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 16), |
e4d6b795 MB |
116 | SSB_DEVTABLE_END |
117 | }; | |
118 | ||
119 | MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl); | |
120 | ||
121 | /* Channel and ratetables are shared for all devices. | |
122 | * They can't be const, because ieee80211 puts some precalculated | |
123 | * data in there. This data is the same for all devices, so we don't | |
124 | * get concurrency issues */ | |
125 | #define RATETAB_ENT(_rateid, _flags) \ | |
8318d78a JB |
126 | { \ |
127 | .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \ | |
128 | .hw_value = (_rateid), \ | |
129 | .flags = (_flags), \ | |
e4d6b795 | 130 | } |
8318d78a JB |
131 | |
132 | /* | |
133 | * NOTE: When changing this, sync with xmit.c's | |
134 | * b43_plcp_get_bitrate_idx_* functions! | |
135 | */ | |
e4d6b795 | 136 | static struct ieee80211_rate __b43_ratetable[] = { |
8318d78a JB |
137 | RATETAB_ENT(B43_CCK_RATE_1MB, 0), |
138 | RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE), | |
139 | RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE), | |
140 | RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE), | |
141 | RATETAB_ENT(B43_OFDM_RATE_6MB, 0), | |
142 | RATETAB_ENT(B43_OFDM_RATE_9MB, 0), | |
143 | RATETAB_ENT(B43_OFDM_RATE_12MB, 0), | |
144 | RATETAB_ENT(B43_OFDM_RATE_18MB, 0), | |
145 | RATETAB_ENT(B43_OFDM_RATE_24MB, 0), | |
146 | RATETAB_ENT(B43_OFDM_RATE_36MB, 0), | |
147 | RATETAB_ENT(B43_OFDM_RATE_48MB, 0), | |
148 | RATETAB_ENT(B43_OFDM_RATE_54MB, 0), | |
e4d6b795 MB |
149 | }; |
150 | ||
151 | #define b43_a_ratetable (__b43_ratetable + 4) | |
152 | #define b43_a_ratetable_size 8 | |
153 | #define b43_b_ratetable (__b43_ratetable + 0) | |
154 | #define b43_b_ratetable_size 4 | |
155 | #define b43_g_ratetable (__b43_ratetable + 0) | |
156 | #define b43_g_ratetable_size 12 | |
157 | ||
bb1eeff1 MB |
158 | #define CHAN4G(_channel, _freq, _flags) { \ |
159 | .band = IEEE80211_BAND_2GHZ, \ | |
160 | .center_freq = (_freq), \ | |
161 | .hw_value = (_channel), \ | |
162 | .flags = (_flags), \ | |
163 | .max_antenna_gain = 0, \ | |
164 | .max_power = 30, \ | |
165 | } | |
96c755a3 | 166 | static struct ieee80211_channel b43_2ghz_chantable[] = { |
bb1eeff1 MB |
167 | CHAN4G(1, 2412, 0), |
168 | CHAN4G(2, 2417, 0), | |
169 | CHAN4G(3, 2422, 0), | |
170 | CHAN4G(4, 2427, 0), | |
171 | CHAN4G(5, 2432, 0), | |
172 | CHAN4G(6, 2437, 0), | |
173 | CHAN4G(7, 2442, 0), | |
174 | CHAN4G(8, 2447, 0), | |
175 | CHAN4G(9, 2452, 0), | |
176 | CHAN4G(10, 2457, 0), | |
177 | CHAN4G(11, 2462, 0), | |
178 | CHAN4G(12, 2467, 0), | |
179 | CHAN4G(13, 2472, 0), | |
180 | CHAN4G(14, 2484, 0), | |
181 | }; | |
182 | #undef CHAN4G | |
183 | ||
184 | #define CHAN5G(_channel, _flags) { \ | |
185 | .band = IEEE80211_BAND_5GHZ, \ | |
186 | .center_freq = 5000 + (5 * (_channel)), \ | |
187 | .hw_value = (_channel), \ | |
188 | .flags = (_flags), \ | |
189 | .max_antenna_gain = 0, \ | |
190 | .max_power = 30, \ | |
191 | } | |
192 | static struct ieee80211_channel b43_5ghz_nphy_chantable[] = { | |
193 | CHAN5G(32, 0), CHAN5G(34, 0), | |
194 | CHAN5G(36, 0), CHAN5G(38, 0), | |
195 | CHAN5G(40, 0), CHAN5G(42, 0), | |
196 | CHAN5G(44, 0), CHAN5G(46, 0), | |
197 | CHAN5G(48, 0), CHAN5G(50, 0), | |
198 | CHAN5G(52, 0), CHAN5G(54, 0), | |
199 | CHAN5G(56, 0), CHAN5G(58, 0), | |
200 | CHAN5G(60, 0), CHAN5G(62, 0), | |
201 | CHAN5G(64, 0), CHAN5G(66, 0), | |
202 | CHAN5G(68, 0), CHAN5G(70, 0), | |
203 | CHAN5G(72, 0), CHAN5G(74, 0), | |
204 | CHAN5G(76, 0), CHAN5G(78, 0), | |
205 | CHAN5G(80, 0), CHAN5G(82, 0), | |
206 | CHAN5G(84, 0), CHAN5G(86, 0), | |
207 | CHAN5G(88, 0), CHAN5G(90, 0), | |
208 | CHAN5G(92, 0), CHAN5G(94, 0), | |
209 | CHAN5G(96, 0), CHAN5G(98, 0), | |
210 | CHAN5G(100, 0), CHAN5G(102, 0), | |
211 | CHAN5G(104, 0), CHAN5G(106, 0), | |
212 | CHAN5G(108, 0), CHAN5G(110, 0), | |
213 | CHAN5G(112, 0), CHAN5G(114, 0), | |
214 | CHAN5G(116, 0), CHAN5G(118, 0), | |
215 | CHAN5G(120, 0), CHAN5G(122, 0), | |
216 | CHAN5G(124, 0), CHAN5G(126, 0), | |
217 | CHAN5G(128, 0), CHAN5G(130, 0), | |
218 | CHAN5G(132, 0), CHAN5G(134, 0), | |
219 | CHAN5G(136, 0), CHAN5G(138, 0), | |
220 | CHAN5G(140, 0), CHAN5G(142, 0), | |
221 | CHAN5G(144, 0), CHAN5G(145, 0), | |
222 | CHAN5G(146, 0), CHAN5G(147, 0), | |
223 | CHAN5G(148, 0), CHAN5G(149, 0), | |
224 | CHAN5G(150, 0), CHAN5G(151, 0), | |
225 | CHAN5G(152, 0), CHAN5G(153, 0), | |
226 | CHAN5G(154, 0), CHAN5G(155, 0), | |
227 | CHAN5G(156, 0), CHAN5G(157, 0), | |
228 | CHAN5G(158, 0), CHAN5G(159, 0), | |
229 | CHAN5G(160, 0), CHAN5G(161, 0), | |
230 | CHAN5G(162, 0), CHAN5G(163, 0), | |
231 | CHAN5G(164, 0), CHAN5G(165, 0), | |
232 | CHAN5G(166, 0), CHAN5G(168, 0), | |
233 | CHAN5G(170, 0), CHAN5G(172, 0), | |
234 | CHAN5G(174, 0), CHAN5G(176, 0), | |
235 | CHAN5G(178, 0), CHAN5G(180, 0), | |
236 | CHAN5G(182, 0), CHAN5G(184, 0), | |
237 | CHAN5G(186, 0), CHAN5G(188, 0), | |
238 | CHAN5G(190, 0), CHAN5G(192, 0), | |
239 | CHAN5G(194, 0), CHAN5G(196, 0), | |
240 | CHAN5G(198, 0), CHAN5G(200, 0), | |
241 | CHAN5G(202, 0), CHAN5G(204, 0), | |
242 | CHAN5G(206, 0), CHAN5G(208, 0), | |
243 | CHAN5G(210, 0), CHAN5G(212, 0), | |
244 | CHAN5G(214, 0), CHAN5G(216, 0), | |
245 | CHAN5G(218, 0), CHAN5G(220, 0), | |
246 | CHAN5G(222, 0), CHAN5G(224, 0), | |
247 | CHAN5G(226, 0), CHAN5G(228, 0), | |
e4d6b795 MB |
248 | }; |
249 | ||
bb1eeff1 MB |
250 | static struct ieee80211_channel b43_5ghz_aphy_chantable[] = { |
251 | CHAN5G(34, 0), CHAN5G(36, 0), | |
252 | CHAN5G(38, 0), CHAN5G(40, 0), | |
253 | CHAN5G(42, 0), CHAN5G(44, 0), | |
254 | CHAN5G(46, 0), CHAN5G(48, 0), | |
255 | CHAN5G(52, 0), CHAN5G(56, 0), | |
256 | CHAN5G(60, 0), CHAN5G(64, 0), | |
257 | CHAN5G(100, 0), CHAN5G(104, 0), | |
258 | CHAN5G(108, 0), CHAN5G(112, 0), | |
259 | CHAN5G(116, 0), CHAN5G(120, 0), | |
260 | CHAN5G(124, 0), CHAN5G(128, 0), | |
261 | CHAN5G(132, 0), CHAN5G(136, 0), | |
262 | CHAN5G(140, 0), CHAN5G(149, 0), | |
263 | CHAN5G(153, 0), CHAN5G(157, 0), | |
264 | CHAN5G(161, 0), CHAN5G(165, 0), | |
265 | CHAN5G(184, 0), CHAN5G(188, 0), | |
266 | CHAN5G(192, 0), CHAN5G(196, 0), | |
267 | CHAN5G(200, 0), CHAN5G(204, 0), | |
268 | CHAN5G(208, 0), CHAN5G(212, 0), | |
269 | CHAN5G(216, 0), | |
270 | }; | |
271 | #undef CHAN5G | |
272 | ||
273 | static struct ieee80211_supported_band b43_band_5GHz_nphy = { | |
274 | .band = IEEE80211_BAND_5GHZ, | |
275 | .channels = b43_5ghz_nphy_chantable, | |
276 | .n_channels = ARRAY_SIZE(b43_5ghz_nphy_chantable), | |
277 | .bitrates = b43_a_ratetable, | |
278 | .n_bitrates = b43_a_ratetable_size, | |
e4d6b795 | 279 | }; |
8318d78a | 280 | |
bb1eeff1 MB |
281 | static struct ieee80211_supported_band b43_band_5GHz_aphy = { |
282 | .band = IEEE80211_BAND_5GHZ, | |
283 | .channels = b43_5ghz_aphy_chantable, | |
284 | .n_channels = ARRAY_SIZE(b43_5ghz_aphy_chantable), | |
285 | .bitrates = b43_a_ratetable, | |
286 | .n_bitrates = b43_a_ratetable_size, | |
8318d78a | 287 | }; |
e4d6b795 | 288 | |
8318d78a | 289 | static struct ieee80211_supported_band b43_band_2GHz = { |
bb1eeff1 MB |
290 | .band = IEEE80211_BAND_2GHZ, |
291 | .channels = b43_2ghz_chantable, | |
292 | .n_channels = ARRAY_SIZE(b43_2ghz_chantable), | |
293 | .bitrates = b43_g_ratetable, | |
294 | .n_bitrates = b43_g_ratetable_size, | |
8318d78a JB |
295 | }; |
296 | ||
e4d6b795 MB |
297 | static void b43_wireless_core_exit(struct b43_wldev *dev); |
298 | static int b43_wireless_core_init(struct b43_wldev *dev); | |
36dbd954 | 299 | static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev); |
e4d6b795 MB |
300 | static int b43_wireless_core_start(struct b43_wldev *dev); |
301 | ||
302 | static int b43_ratelimit(struct b43_wl *wl) | |
303 | { | |
304 | if (!wl || !wl->current_dev) | |
305 | return 1; | |
306 | if (b43_status(wl->current_dev) < B43_STAT_STARTED) | |
307 | return 1; | |
308 | /* We are up and running. | |
309 | * Ratelimit the messages to avoid DoS over the net. */ | |
310 | return net_ratelimit(); | |
311 | } | |
312 | ||
313 | void b43info(struct b43_wl *wl, const char *fmt, ...) | |
314 | { | |
315 | va_list args; | |
316 | ||
060210f9 MB |
317 | if (b43_modparam_verbose < B43_VERBOSITY_INFO) |
318 | return; | |
e4d6b795 MB |
319 | if (!b43_ratelimit(wl)) |
320 | return; | |
321 | va_start(args, fmt); | |
322 | printk(KERN_INFO "b43-%s: ", | |
323 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); | |
324 | vprintk(fmt, args); | |
325 | va_end(args); | |
326 | } | |
327 | ||
328 | void b43err(struct b43_wl *wl, const char *fmt, ...) | |
329 | { | |
330 | va_list args; | |
331 | ||
060210f9 MB |
332 | if (b43_modparam_verbose < B43_VERBOSITY_ERROR) |
333 | return; | |
e4d6b795 MB |
334 | if (!b43_ratelimit(wl)) |
335 | return; | |
336 | va_start(args, fmt); | |
337 | printk(KERN_ERR "b43-%s ERROR: ", | |
338 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); | |
339 | vprintk(fmt, args); | |
340 | va_end(args); | |
341 | } | |
342 | ||
343 | void b43warn(struct b43_wl *wl, const char *fmt, ...) | |
344 | { | |
345 | va_list args; | |
346 | ||
060210f9 MB |
347 | if (b43_modparam_verbose < B43_VERBOSITY_WARN) |
348 | return; | |
e4d6b795 MB |
349 | if (!b43_ratelimit(wl)) |
350 | return; | |
351 | va_start(args, fmt); | |
352 | printk(KERN_WARNING "b43-%s warning: ", | |
353 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); | |
354 | vprintk(fmt, args); | |
355 | va_end(args); | |
356 | } | |
357 | ||
e4d6b795 MB |
358 | void b43dbg(struct b43_wl *wl, const char *fmt, ...) |
359 | { | |
360 | va_list args; | |
361 | ||
060210f9 MB |
362 | if (b43_modparam_verbose < B43_VERBOSITY_DEBUG) |
363 | return; | |
e4d6b795 MB |
364 | va_start(args, fmt); |
365 | printk(KERN_DEBUG "b43-%s debug: ", | |
366 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); | |
367 | vprintk(fmt, args); | |
368 | va_end(args); | |
369 | } | |
e4d6b795 MB |
370 | |
371 | static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val) | |
372 | { | |
373 | u32 macctl; | |
374 | ||
375 | B43_WARN_ON(offset % 4 != 0); | |
376 | ||
377 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
378 | if (macctl & B43_MACCTL_BE) | |
379 | val = swab32(val); | |
380 | ||
381 | b43_write32(dev, B43_MMIO_RAM_CONTROL, offset); | |
382 | mmiowb(); | |
383 | b43_write32(dev, B43_MMIO_RAM_DATA, val); | |
384 | } | |
385 | ||
280d0e16 MB |
386 | static inline void b43_shm_control_word(struct b43_wldev *dev, |
387 | u16 routing, u16 offset) | |
e4d6b795 MB |
388 | { |
389 | u32 control; | |
390 | ||
391 | /* "offset" is the WORD offset. */ | |
e4d6b795 MB |
392 | control = routing; |
393 | control <<= 16; | |
394 | control |= offset; | |
395 | b43_write32(dev, B43_MMIO_SHM_CONTROL, control); | |
396 | } | |
397 | ||
69eddc8a | 398 | u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset) |
e4d6b795 MB |
399 | { |
400 | u32 ret; | |
401 | ||
402 | if (routing == B43_SHM_SHARED) { | |
403 | B43_WARN_ON(offset & 0x0001); | |
404 | if (offset & 0x0003) { | |
405 | /* Unaligned access */ | |
406 | b43_shm_control_word(dev, routing, offset >> 2); | |
407 | ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED); | |
e4d6b795 | 408 | b43_shm_control_word(dev, routing, (offset >> 2) + 1); |
f62ae6cd | 409 | ret |= ((u32)b43_read16(dev, B43_MMIO_SHM_DATA)) << 16; |
e4d6b795 | 410 | |
280d0e16 | 411 | goto out; |
e4d6b795 MB |
412 | } |
413 | offset >>= 2; | |
414 | } | |
415 | b43_shm_control_word(dev, routing, offset); | |
416 | ret = b43_read32(dev, B43_MMIO_SHM_DATA); | |
280d0e16 | 417 | out: |
e4d6b795 MB |
418 | return ret; |
419 | } | |
420 | ||
69eddc8a | 421 | u16 b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset) |
6bbc321a MB |
422 | { |
423 | u16 ret; | |
424 | ||
e4d6b795 MB |
425 | if (routing == B43_SHM_SHARED) { |
426 | B43_WARN_ON(offset & 0x0001); | |
427 | if (offset & 0x0003) { | |
428 | /* Unaligned access */ | |
429 | b43_shm_control_word(dev, routing, offset >> 2); | |
430 | ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED); | |
431 | ||
280d0e16 | 432 | goto out; |
e4d6b795 MB |
433 | } |
434 | offset >>= 2; | |
435 | } | |
436 | b43_shm_control_word(dev, routing, offset); | |
437 | ret = b43_read16(dev, B43_MMIO_SHM_DATA); | |
280d0e16 | 438 | out: |
e4d6b795 MB |
439 | return ret; |
440 | } | |
441 | ||
69eddc8a | 442 | void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value) |
6bbc321a | 443 | { |
e4d6b795 MB |
444 | if (routing == B43_SHM_SHARED) { |
445 | B43_WARN_ON(offset & 0x0001); | |
446 | if (offset & 0x0003) { | |
447 | /* Unaligned access */ | |
448 | b43_shm_control_word(dev, routing, offset >> 2); | |
e4d6b795 | 449 | b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, |
f62ae6cd | 450 | value & 0xFFFF); |
e4d6b795 | 451 | b43_shm_control_word(dev, routing, (offset >> 2) + 1); |
f62ae6cd MB |
452 | b43_write16(dev, B43_MMIO_SHM_DATA, |
453 | (value >> 16) & 0xFFFF); | |
6bbc321a | 454 | return; |
e4d6b795 MB |
455 | } |
456 | offset >>= 2; | |
457 | } | |
458 | b43_shm_control_word(dev, routing, offset); | |
e4d6b795 MB |
459 | b43_write32(dev, B43_MMIO_SHM_DATA, value); |
460 | } | |
461 | ||
69eddc8a | 462 | void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value) |
6bbc321a | 463 | { |
e4d6b795 MB |
464 | if (routing == B43_SHM_SHARED) { |
465 | B43_WARN_ON(offset & 0x0001); | |
466 | if (offset & 0x0003) { | |
467 | /* Unaligned access */ | |
468 | b43_shm_control_word(dev, routing, offset >> 2); | |
e4d6b795 | 469 | b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value); |
6bbc321a | 470 | return; |
e4d6b795 MB |
471 | } |
472 | offset >>= 2; | |
473 | } | |
474 | b43_shm_control_word(dev, routing, offset); | |
e4d6b795 | 475 | b43_write16(dev, B43_MMIO_SHM_DATA, value); |
6bbc321a MB |
476 | } |
477 | ||
e4d6b795 | 478 | /* Read HostFlags */ |
99da185a | 479 | u64 b43_hf_read(struct b43_wldev *dev) |
e4d6b795 | 480 | { |
35f0d354 | 481 | u64 ret; |
e4d6b795 MB |
482 | |
483 | ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI); | |
484 | ret <<= 16; | |
35f0d354 MB |
485 | ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI); |
486 | ret <<= 16; | |
e4d6b795 MB |
487 | ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO); |
488 | ||
489 | return ret; | |
490 | } | |
491 | ||
492 | /* Write HostFlags */ | |
35f0d354 | 493 | void b43_hf_write(struct b43_wldev *dev, u64 value) |
e4d6b795 | 494 | { |
35f0d354 MB |
495 | u16 lo, mi, hi; |
496 | ||
497 | lo = (value & 0x00000000FFFFULL); | |
498 | mi = (value & 0x0000FFFF0000ULL) >> 16; | |
499 | hi = (value & 0xFFFF00000000ULL) >> 32; | |
500 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO, lo); | |
501 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI, mi); | |
502 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi); | |
e4d6b795 MB |
503 | } |
504 | ||
403a3a13 MB |
505 | /* Read the firmware capabilities bitmask (Opensource firmware only) */ |
506 | static u16 b43_fwcapa_read(struct b43_wldev *dev) | |
507 | { | |
508 | B43_WARN_ON(!dev->fw.opensource); | |
509 | return b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_FWCAPA); | |
510 | } | |
511 | ||
3ebbbb56 | 512 | void b43_tsf_read(struct b43_wldev *dev, u64 *tsf) |
e4d6b795 | 513 | { |
3ebbbb56 MB |
514 | u32 low, high; |
515 | ||
516 | B43_WARN_ON(dev->dev->id.revision < 3); | |
517 | ||
518 | /* The hardware guarantees us an atomic read, if we | |
519 | * read the low register first. */ | |
520 | low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW); | |
521 | high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH); | |
522 | ||
523 | *tsf = high; | |
524 | *tsf <<= 32; | |
525 | *tsf |= low; | |
e4d6b795 MB |
526 | } |
527 | ||
528 | static void b43_time_lock(struct b43_wldev *dev) | |
529 | { | |
530 | u32 macctl; | |
531 | ||
532 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
533 | macctl |= B43_MACCTL_TBTTHOLD; | |
534 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
535 | /* Commit the write */ | |
536 | b43_read32(dev, B43_MMIO_MACCTL); | |
537 | } | |
538 | ||
539 | static void b43_time_unlock(struct b43_wldev *dev) | |
540 | { | |
541 | u32 macctl; | |
542 | ||
543 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
544 | macctl &= ~B43_MACCTL_TBTTHOLD; | |
545 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
546 | /* Commit the write */ | |
547 | b43_read32(dev, B43_MMIO_MACCTL); | |
548 | } | |
549 | ||
550 | static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf) | |
551 | { | |
3ebbbb56 MB |
552 | u32 low, high; |
553 | ||
554 | B43_WARN_ON(dev->dev->id.revision < 3); | |
555 | ||
556 | low = tsf; | |
557 | high = (tsf >> 32); | |
558 | /* The hardware guarantees us an atomic write, if we | |
559 | * write the low register first. */ | |
560 | b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, low); | |
561 | mmiowb(); | |
562 | b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, high); | |
563 | mmiowb(); | |
e4d6b795 MB |
564 | } |
565 | ||
566 | void b43_tsf_write(struct b43_wldev *dev, u64 tsf) | |
567 | { | |
568 | b43_time_lock(dev); | |
569 | b43_tsf_write_locked(dev, tsf); | |
570 | b43_time_unlock(dev); | |
571 | } | |
572 | ||
573 | static | |
99da185a | 574 | void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 *mac) |
e4d6b795 MB |
575 | { |
576 | static const u8 zero_addr[ETH_ALEN] = { 0 }; | |
577 | u16 data; | |
578 | ||
579 | if (!mac) | |
580 | mac = zero_addr; | |
581 | ||
582 | offset |= 0x0020; | |
583 | b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset); | |
584 | ||
585 | data = mac[0]; | |
586 | data |= mac[1] << 8; | |
587 | b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); | |
588 | data = mac[2]; | |
589 | data |= mac[3] << 8; | |
590 | b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); | |
591 | data = mac[4]; | |
592 | data |= mac[5] << 8; | |
593 | b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); | |
594 | } | |
595 | ||
596 | static void b43_write_mac_bssid_templates(struct b43_wldev *dev) | |
597 | { | |
598 | const u8 *mac; | |
599 | const u8 *bssid; | |
600 | u8 mac_bssid[ETH_ALEN * 2]; | |
601 | int i; | |
602 | u32 tmp; | |
603 | ||
604 | bssid = dev->wl->bssid; | |
605 | mac = dev->wl->mac_addr; | |
606 | ||
607 | b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid); | |
608 | ||
609 | memcpy(mac_bssid, mac, ETH_ALEN); | |
610 | memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN); | |
611 | ||
612 | /* Write our MAC address and BSSID to template ram */ | |
613 | for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) { | |
614 | tmp = (u32) (mac_bssid[i + 0]); | |
615 | tmp |= (u32) (mac_bssid[i + 1]) << 8; | |
616 | tmp |= (u32) (mac_bssid[i + 2]) << 16; | |
617 | tmp |= (u32) (mac_bssid[i + 3]) << 24; | |
618 | b43_ram_write(dev, 0x20 + i, tmp); | |
619 | } | |
620 | } | |
621 | ||
4150c572 | 622 | static void b43_upload_card_macaddress(struct b43_wldev *dev) |
e4d6b795 | 623 | { |
e4d6b795 | 624 | b43_write_mac_bssid_templates(dev); |
4150c572 | 625 | b43_macfilter_set(dev, B43_MACFILTER_SELF, dev->wl->mac_addr); |
e4d6b795 MB |
626 | } |
627 | ||
628 | static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time) | |
629 | { | |
630 | /* slot_time is in usec. */ | |
631 | if (dev->phy.type != B43_PHYTYPE_G) | |
632 | return; | |
633 | b43_write16(dev, 0x684, 510 + slot_time); | |
634 | b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time); | |
635 | } | |
636 | ||
637 | static void b43_short_slot_timing_enable(struct b43_wldev *dev) | |
638 | { | |
639 | b43_set_slot_time(dev, 9); | |
e4d6b795 MB |
640 | } |
641 | ||
642 | static void b43_short_slot_timing_disable(struct b43_wldev *dev) | |
643 | { | |
644 | b43_set_slot_time(dev, 20); | |
e4d6b795 MB |
645 | } |
646 | ||
e4d6b795 | 647 | /* DummyTransmission function, as documented on |
2f19c287 | 648 | * http://bcm-v4.sipsolutions.net/802.11/DummyTransmission |
e4d6b795 | 649 | */ |
2f19c287 | 650 | void b43_dummy_transmission(struct b43_wldev *dev, bool ofdm, bool pa_on) |
e4d6b795 MB |
651 | { |
652 | struct b43_phy *phy = &dev->phy; | |
653 | unsigned int i, max_loop; | |
654 | u16 value; | |
655 | u32 buffer[5] = { | |
656 | 0x00000000, | |
657 | 0x00D40000, | |
658 | 0x00000000, | |
659 | 0x01000000, | |
660 | 0x00000000, | |
661 | }; | |
662 | ||
2f19c287 | 663 | if (ofdm) { |
e4d6b795 MB |
664 | max_loop = 0x1E; |
665 | buffer[0] = 0x000201CC; | |
2f19c287 | 666 | } else { |
e4d6b795 MB |
667 | max_loop = 0xFA; |
668 | buffer[0] = 0x000B846E; | |
e4d6b795 MB |
669 | } |
670 | ||
671 | for (i = 0; i < 5; i++) | |
672 | b43_ram_write(dev, i * 4, buffer[i]); | |
673 | ||
e4d6b795 | 674 | b43_write16(dev, 0x0568, 0x0000); |
2f19c287 GS |
675 | if (dev->dev->id.revision < 11) |
676 | b43_write16(dev, 0x07C0, 0x0000); | |
677 | else | |
678 | b43_write16(dev, 0x07C0, 0x0100); | |
679 | value = (ofdm ? 0x41 : 0x40); | |
e4d6b795 | 680 | b43_write16(dev, 0x050C, value); |
2f19c287 GS |
681 | if ((phy->type == B43_PHYTYPE_N) || (phy->type == B43_PHYTYPE_LP)) |
682 | b43_write16(dev, 0x0514, 0x1A02); | |
e4d6b795 MB |
683 | b43_write16(dev, 0x0508, 0x0000); |
684 | b43_write16(dev, 0x050A, 0x0000); | |
685 | b43_write16(dev, 0x054C, 0x0000); | |
686 | b43_write16(dev, 0x056A, 0x0014); | |
687 | b43_write16(dev, 0x0568, 0x0826); | |
688 | b43_write16(dev, 0x0500, 0x0000); | |
2f19c287 GS |
689 | if (!pa_on && (phy->type == B43_PHYTYPE_N)) { |
690 | //SPEC TODO | |
691 | } | |
692 | ||
693 | switch (phy->type) { | |
694 | case B43_PHYTYPE_N: | |
695 | b43_write16(dev, 0x0502, 0x00D0); | |
696 | break; | |
697 | case B43_PHYTYPE_LP: | |
698 | b43_write16(dev, 0x0502, 0x0050); | |
699 | break; | |
700 | default: | |
701 | b43_write16(dev, 0x0502, 0x0030); | |
702 | } | |
e4d6b795 MB |
703 | |
704 | if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) | |
705 | b43_radio_write16(dev, 0x0051, 0x0017); | |
706 | for (i = 0x00; i < max_loop; i++) { | |
707 | value = b43_read16(dev, 0x050E); | |
708 | if (value & 0x0080) | |
709 | break; | |
710 | udelay(10); | |
711 | } | |
712 | for (i = 0x00; i < 0x0A; i++) { | |
713 | value = b43_read16(dev, 0x050E); | |
714 | if (value & 0x0400) | |
715 | break; | |
716 | udelay(10); | |
717 | } | |
1d280ddc | 718 | for (i = 0x00; i < 0x19; i++) { |
e4d6b795 MB |
719 | value = b43_read16(dev, 0x0690); |
720 | if (!(value & 0x0100)) | |
721 | break; | |
722 | udelay(10); | |
723 | } | |
724 | if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) | |
725 | b43_radio_write16(dev, 0x0051, 0x0037); | |
726 | } | |
727 | ||
728 | static void key_write(struct b43_wldev *dev, | |
99da185a | 729 | u8 index, u8 algorithm, const u8 *key) |
e4d6b795 MB |
730 | { |
731 | unsigned int i; | |
732 | u32 offset; | |
733 | u16 value; | |
734 | u16 kidx; | |
735 | ||
736 | /* Key index/algo block */ | |
737 | kidx = b43_kidx_to_fw(dev, index); | |
738 | value = ((kidx << 4) | algorithm); | |
739 | b43_shm_write16(dev, B43_SHM_SHARED, | |
740 | B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value); | |
741 | ||
742 | /* Write the key to the Key Table Pointer offset */ | |
743 | offset = dev->ktp + (index * B43_SEC_KEYSIZE); | |
744 | for (i = 0; i < B43_SEC_KEYSIZE; i += 2) { | |
745 | value = key[i]; | |
746 | value |= (u16) (key[i + 1]) << 8; | |
747 | b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value); | |
748 | } | |
749 | } | |
750 | ||
99da185a | 751 | static void keymac_write(struct b43_wldev *dev, u8 index, const u8 *addr) |
e4d6b795 MB |
752 | { |
753 | u32 addrtmp[2] = { 0, 0, }; | |
66d2d089 | 754 | u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2; |
e4d6b795 MB |
755 | |
756 | if (b43_new_kidx_api(dev)) | |
66d2d089 | 757 | pairwise_keys_start = B43_NR_GROUP_KEYS; |
e4d6b795 | 758 | |
66d2d089 MB |
759 | B43_WARN_ON(index < pairwise_keys_start); |
760 | /* We have four default TX keys and possibly four default RX keys. | |
e4d6b795 MB |
761 | * Physical mac 0 is mapped to physical key 4 or 8, depending |
762 | * on the firmware version. | |
763 | * So we must adjust the index here. | |
764 | */ | |
66d2d089 MB |
765 | index -= pairwise_keys_start; |
766 | B43_WARN_ON(index >= B43_NR_PAIRWISE_KEYS); | |
e4d6b795 MB |
767 | |
768 | if (addr) { | |
769 | addrtmp[0] = addr[0]; | |
770 | addrtmp[0] |= ((u32) (addr[1]) << 8); | |
771 | addrtmp[0] |= ((u32) (addr[2]) << 16); | |
772 | addrtmp[0] |= ((u32) (addr[3]) << 24); | |
773 | addrtmp[1] = addr[4]; | |
774 | addrtmp[1] |= ((u32) (addr[5]) << 8); | |
775 | } | |
776 | ||
66d2d089 MB |
777 | /* Receive match transmitter address (RCMTA) mechanism */ |
778 | b43_shm_write32(dev, B43_SHM_RCMTA, | |
779 | (index * 2) + 0, addrtmp[0]); | |
780 | b43_shm_write16(dev, B43_SHM_RCMTA, | |
781 | (index * 2) + 1, addrtmp[1]); | |
e4d6b795 MB |
782 | } |
783 | ||
035d0243 | 784 | /* The ucode will use phase1 key with TEK key to decrypt rx packets. |
785 | * When a packet is received, the iv32 is checked. | |
786 | * - if it doesn't the packet is returned without modification (and software | |
787 | * decryption can be done). That's what happen when iv16 wrap. | |
788 | * - if it does, the rc4 key is computed, and decryption is tried. | |
789 | * Either it will success and B43_RX_MAC_DEC is returned, | |
790 | * either it fails and B43_RX_MAC_DEC|B43_RX_MAC_DECERR is returned | |
791 | * and the packet is not usable (it got modified by the ucode). | |
792 | * So in order to never have B43_RX_MAC_DECERR, we should provide | |
793 | * a iv32 and phase1key that match. Because we drop packets in case of | |
794 | * B43_RX_MAC_DECERR, if we have a correct iv32 but a wrong phase1key, all | |
795 | * packets will be lost without higher layer knowing (ie no resync possible | |
796 | * until next wrap). | |
797 | * | |
798 | * NOTE : this should support 50 key like RCMTA because | |
799 | * (B43_SHM_SH_KEYIDXBLOCK - B43_SHM_SH_TKIPTSCTTAK)/14 = 50 | |
800 | */ | |
801 | static void rx_tkip_phase1_write(struct b43_wldev *dev, u8 index, u32 iv32, | |
802 | u16 *phase1key) | |
803 | { | |
804 | unsigned int i; | |
805 | u32 offset; | |
806 | u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2; | |
807 | ||
808 | if (!modparam_hwtkip) | |
809 | return; | |
810 | ||
811 | if (b43_new_kidx_api(dev)) | |
812 | pairwise_keys_start = B43_NR_GROUP_KEYS; | |
813 | ||
814 | B43_WARN_ON(index < pairwise_keys_start); | |
815 | /* We have four default TX keys and possibly four default RX keys. | |
816 | * Physical mac 0 is mapped to physical key 4 or 8, depending | |
817 | * on the firmware version. | |
818 | * So we must adjust the index here. | |
819 | */ | |
820 | index -= pairwise_keys_start; | |
821 | B43_WARN_ON(index >= B43_NR_PAIRWISE_KEYS); | |
822 | ||
823 | if (b43_debug(dev, B43_DBG_KEYS)) { | |
824 | b43dbg(dev->wl, "rx_tkip_phase1_write : idx 0x%x, iv32 0x%x\n", | |
825 | index, iv32); | |
826 | } | |
827 | /* Write the key to the RX tkip shared mem */ | |
828 | offset = B43_SHM_SH_TKIPTSCTTAK + index * (10 + 4); | |
829 | for (i = 0; i < 10; i += 2) { | |
830 | b43_shm_write16(dev, B43_SHM_SHARED, offset + i, | |
831 | phase1key ? phase1key[i / 2] : 0); | |
832 | } | |
833 | b43_shm_write16(dev, B43_SHM_SHARED, offset + i, iv32); | |
834 | b43_shm_write16(dev, B43_SHM_SHARED, offset + i + 2, iv32 >> 16); | |
835 | } | |
836 | ||
837 | static void b43_op_update_tkip_key(struct ieee80211_hw *hw, | |
838 | struct ieee80211_key_conf *keyconf, const u8 *addr, | |
839 | u32 iv32, u16 *phase1key) | |
840 | { | |
841 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
842 | struct b43_wldev *dev; | |
843 | int index = keyconf->hw_key_idx; | |
844 | ||
845 | if (B43_WARN_ON(!modparam_hwtkip)) | |
846 | return; | |
847 | ||
848 | mutex_lock(&wl->mutex); | |
849 | ||
850 | dev = wl->current_dev; | |
851 | if (!dev || b43_status(dev) < B43_STAT_INITIALIZED) | |
852 | goto out_unlock; | |
853 | ||
854 | keymac_write(dev, index, NULL); /* First zero out mac to avoid race */ | |
855 | ||
856 | rx_tkip_phase1_write(dev, index, iv32, phase1key); | |
857 | keymac_write(dev, index, addr); | |
858 | ||
859 | out_unlock: | |
860 | mutex_unlock(&wl->mutex); | |
861 | } | |
862 | ||
e4d6b795 MB |
863 | static void do_key_write(struct b43_wldev *dev, |
864 | u8 index, u8 algorithm, | |
99da185a | 865 | const u8 *key, size_t key_len, const u8 *mac_addr) |
e4d6b795 MB |
866 | { |
867 | u8 buf[B43_SEC_KEYSIZE] = { 0, }; | |
66d2d089 | 868 | u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2; |
e4d6b795 MB |
869 | |
870 | if (b43_new_kidx_api(dev)) | |
66d2d089 | 871 | pairwise_keys_start = B43_NR_GROUP_KEYS; |
e4d6b795 | 872 | |
66d2d089 | 873 | B43_WARN_ON(index >= ARRAY_SIZE(dev->key)); |
e4d6b795 MB |
874 | B43_WARN_ON(key_len > B43_SEC_KEYSIZE); |
875 | ||
66d2d089 | 876 | if (index >= pairwise_keys_start) |
e4d6b795 | 877 | keymac_write(dev, index, NULL); /* First zero out mac. */ |
035d0243 | 878 | if (algorithm == B43_SEC_ALGO_TKIP) { |
879 | /* | |
880 | * We should provide an initial iv32, phase1key pair. | |
881 | * We could start with iv32=0 and compute the corresponding | |
882 | * phase1key, but this means calling ieee80211_get_tkip_key | |
883 | * with a fake skb (or export other tkip function). | |
884 | * Because we are lazy we hope iv32 won't start with | |
885 | * 0xffffffff and let's b43_op_update_tkip_key provide a | |
886 | * correct pair. | |
887 | */ | |
888 | rx_tkip_phase1_write(dev, index, 0xffffffff, (u16*)buf); | |
889 | } else if (index >= pairwise_keys_start) /* clear it */ | |
890 | rx_tkip_phase1_write(dev, index, 0, NULL); | |
e4d6b795 MB |
891 | if (key) |
892 | memcpy(buf, key, key_len); | |
893 | key_write(dev, index, algorithm, buf); | |
66d2d089 | 894 | if (index >= pairwise_keys_start) |
e4d6b795 MB |
895 | keymac_write(dev, index, mac_addr); |
896 | ||
897 | dev->key[index].algorithm = algorithm; | |
898 | } | |
899 | ||
900 | static int b43_key_write(struct b43_wldev *dev, | |
901 | int index, u8 algorithm, | |
99da185a JD |
902 | const u8 *key, size_t key_len, |
903 | const u8 *mac_addr, | |
e4d6b795 MB |
904 | struct ieee80211_key_conf *keyconf) |
905 | { | |
906 | int i; | |
66d2d089 | 907 | int pairwise_keys_start; |
e4d6b795 | 908 | |
035d0243 | 909 | /* For ALG_TKIP the key is encoded as a 256-bit (32 byte) data block: |
910 | * - Temporal Encryption Key (128 bits) | |
911 | * - Temporal Authenticator Tx MIC Key (64 bits) | |
912 | * - Temporal Authenticator Rx MIC Key (64 bits) | |
913 | * | |
914 | * Hardware only store TEK | |
915 | */ | |
916 | if (algorithm == B43_SEC_ALGO_TKIP && key_len == 32) | |
917 | key_len = 16; | |
e4d6b795 MB |
918 | if (key_len > B43_SEC_KEYSIZE) |
919 | return -EINVAL; | |
66d2d089 | 920 | for (i = 0; i < ARRAY_SIZE(dev->key); i++) { |
e4d6b795 MB |
921 | /* Check that we don't already have this key. */ |
922 | B43_WARN_ON(dev->key[i].keyconf == keyconf); | |
923 | } | |
924 | if (index < 0) { | |
e808e586 | 925 | /* Pairwise key. Get an empty slot for the key. */ |
e4d6b795 | 926 | if (b43_new_kidx_api(dev)) |
66d2d089 | 927 | pairwise_keys_start = B43_NR_GROUP_KEYS; |
e4d6b795 | 928 | else |
66d2d089 MB |
929 | pairwise_keys_start = B43_NR_GROUP_KEYS * 2; |
930 | for (i = pairwise_keys_start; | |
931 | i < pairwise_keys_start + B43_NR_PAIRWISE_KEYS; | |
932 | i++) { | |
933 | B43_WARN_ON(i >= ARRAY_SIZE(dev->key)); | |
e4d6b795 MB |
934 | if (!dev->key[i].keyconf) { |
935 | /* found empty */ | |
936 | index = i; | |
937 | break; | |
938 | } | |
939 | } | |
940 | if (index < 0) { | |
e808e586 | 941 | b43warn(dev->wl, "Out of hardware key memory\n"); |
e4d6b795 MB |
942 | return -ENOSPC; |
943 | } | |
944 | } else | |
945 | B43_WARN_ON(index > 3); | |
946 | ||
947 | do_key_write(dev, index, algorithm, key, key_len, mac_addr); | |
948 | if ((index <= 3) && !b43_new_kidx_api(dev)) { | |
949 | /* Default RX key */ | |
950 | B43_WARN_ON(mac_addr); | |
951 | do_key_write(dev, index + 4, algorithm, key, key_len, NULL); | |
952 | } | |
953 | keyconf->hw_key_idx = index; | |
954 | dev->key[index].keyconf = keyconf; | |
955 | ||
956 | return 0; | |
957 | } | |
958 | ||
959 | static int b43_key_clear(struct b43_wldev *dev, int index) | |
960 | { | |
66d2d089 | 961 | if (B43_WARN_ON((index < 0) || (index >= ARRAY_SIZE(dev->key)))) |
e4d6b795 MB |
962 | return -EINVAL; |
963 | do_key_write(dev, index, B43_SEC_ALGO_NONE, | |
964 | NULL, B43_SEC_KEYSIZE, NULL); | |
965 | if ((index <= 3) && !b43_new_kidx_api(dev)) { | |
966 | do_key_write(dev, index + 4, B43_SEC_ALGO_NONE, | |
967 | NULL, B43_SEC_KEYSIZE, NULL); | |
968 | } | |
969 | dev->key[index].keyconf = NULL; | |
970 | ||
971 | return 0; | |
972 | } | |
973 | ||
974 | static void b43_clear_keys(struct b43_wldev *dev) | |
975 | { | |
66d2d089 | 976 | int i, count; |
e4d6b795 | 977 | |
66d2d089 MB |
978 | if (b43_new_kidx_api(dev)) |
979 | count = B43_NR_GROUP_KEYS + B43_NR_PAIRWISE_KEYS; | |
980 | else | |
981 | count = B43_NR_GROUP_KEYS * 2 + B43_NR_PAIRWISE_KEYS; | |
982 | for (i = 0; i < count; i++) | |
e4d6b795 MB |
983 | b43_key_clear(dev, i); |
984 | } | |
985 | ||
9cf7f247 MB |
986 | static void b43_dump_keymemory(struct b43_wldev *dev) |
987 | { | |
66d2d089 | 988 | unsigned int i, index, count, offset, pairwise_keys_start; |
9cf7f247 MB |
989 | u8 mac[ETH_ALEN]; |
990 | u16 algo; | |
991 | u32 rcmta0; | |
992 | u16 rcmta1; | |
993 | u64 hf; | |
994 | struct b43_key *key; | |
995 | ||
996 | if (!b43_debug(dev, B43_DBG_KEYS)) | |
997 | return; | |
998 | ||
999 | hf = b43_hf_read(dev); | |
1000 | b43dbg(dev->wl, "Hardware key memory dump: USEDEFKEYS=%u\n", | |
1001 | !!(hf & B43_HF_USEDEFKEYS)); | |
66d2d089 MB |
1002 | if (b43_new_kidx_api(dev)) { |
1003 | pairwise_keys_start = B43_NR_GROUP_KEYS; | |
1004 | count = B43_NR_GROUP_KEYS + B43_NR_PAIRWISE_KEYS; | |
1005 | } else { | |
1006 | pairwise_keys_start = B43_NR_GROUP_KEYS * 2; | |
1007 | count = B43_NR_GROUP_KEYS * 2 + B43_NR_PAIRWISE_KEYS; | |
1008 | } | |
1009 | for (index = 0; index < count; index++) { | |
9cf7f247 MB |
1010 | key = &(dev->key[index]); |
1011 | printk(KERN_DEBUG "Key slot %02u: %s", | |
1012 | index, (key->keyconf == NULL) ? " " : "*"); | |
1013 | offset = dev->ktp + (index * B43_SEC_KEYSIZE); | |
1014 | for (i = 0; i < B43_SEC_KEYSIZE; i += 2) { | |
1015 | u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i); | |
1016 | printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF)); | |
1017 | } | |
1018 | ||
1019 | algo = b43_shm_read16(dev, B43_SHM_SHARED, | |
1020 | B43_SHM_SH_KEYIDXBLOCK + (index * 2)); | |
1021 | printk(" Algo: %04X/%02X", algo, key->algorithm); | |
1022 | ||
66d2d089 | 1023 | if (index >= pairwise_keys_start) { |
035d0243 | 1024 | if (key->algorithm == B43_SEC_ALGO_TKIP) { |
1025 | printk(" TKIP: "); | |
1026 | offset = B43_SHM_SH_TKIPTSCTTAK + (index - 4) * (10 + 4); | |
1027 | for (i = 0; i < 14; i += 2) { | |
1028 | u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i); | |
1029 | printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF)); | |
1030 | } | |
1031 | } | |
9cf7f247 | 1032 | rcmta0 = b43_shm_read32(dev, B43_SHM_RCMTA, |
66d2d089 | 1033 | ((index - pairwise_keys_start) * 2) + 0); |
9cf7f247 | 1034 | rcmta1 = b43_shm_read16(dev, B43_SHM_RCMTA, |
66d2d089 | 1035 | ((index - pairwise_keys_start) * 2) + 1); |
9cf7f247 MB |
1036 | *((__le32 *)(&mac[0])) = cpu_to_le32(rcmta0); |
1037 | *((__le16 *)(&mac[4])) = cpu_to_le16(rcmta1); | |
e91d8334 | 1038 | printk(" MAC: %pM", mac); |
9cf7f247 MB |
1039 | } else |
1040 | printk(" DEFAULT KEY"); | |
1041 | printk("\n"); | |
1042 | } | |
1043 | } | |
1044 | ||
e4d6b795 MB |
1045 | void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags) |
1046 | { | |
1047 | u32 macctl; | |
1048 | u16 ucstat; | |
1049 | bool hwps; | |
1050 | bool awake; | |
1051 | int i; | |
1052 | ||
1053 | B43_WARN_ON((ps_flags & B43_PS_ENABLED) && | |
1054 | (ps_flags & B43_PS_DISABLED)); | |
1055 | B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP)); | |
1056 | ||
1057 | if (ps_flags & B43_PS_ENABLED) { | |
1058 | hwps = 1; | |
1059 | } else if (ps_flags & B43_PS_DISABLED) { | |
1060 | hwps = 0; | |
1061 | } else { | |
1062 | //TODO: If powersave is not off and FIXME is not set and we are not in adhoc | |
1063 | // and thus is not an AP and we are associated, set bit 25 | |
1064 | } | |
1065 | if (ps_flags & B43_PS_AWAKE) { | |
1066 | awake = 1; | |
1067 | } else if (ps_flags & B43_PS_ASLEEP) { | |
1068 | awake = 0; | |
1069 | } else { | |
1070 | //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME, | |
1071 | // or we are associated, or FIXME, or the latest PS-Poll packet sent was | |
1072 | // successful, set bit26 | |
1073 | } | |
1074 | ||
1075 | /* FIXME: For now we force awake-on and hwps-off */ | |
1076 | hwps = 0; | |
1077 | awake = 1; | |
1078 | ||
1079 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
1080 | if (hwps) | |
1081 | macctl |= B43_MACCTL_HWPS; | |
1082 | else | |
1083 | macctl &= ~B43_MACCTL_HWPS; | |
1084 | if (awake) | |
1085 | macctl |= B43_MACCTL_AWAKE; | |
1086 | else | |
1087 | macctl &= ~B43_MACCTL_AWAKE; | |
1088 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
1089 | /* Commit write */ | |
1090 | b43_read32(dev, B43_MMIO_MACCTL); | |
1091 | if (awake && dev->dev->id.revision >= 5) { | |
1092 | /* Wait for the microcode to wake up. */ | |
1093 | for (i = 0; i < 100; i++) { | |
1094 | ucstat = b43_shm_read16(dev, B43_SHM_SHARED, | |
1095 | B43_SHM_SH_UCODESTAT); | |
1096 | if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP) | |
1097 | break; | |
1098 | udelay(10); | |
1099 | } | |
1100 | } | |
1101 | } | |
1102 | ||
e4d6b795 MB |
1103 | void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags) |
1104 | { | |
1105 | u32 tmslow; | |
1106 | u32 macctl; | |
1107 | ||
1108 | flags |= B43_TMSLOW_PHYCLKEN; | |
1109 | flags |= B43_TMSLOW_PHYRESET; | |
1110 | ssb_device_enable(dev->dev, flags); | |
1111 | msleep(2); /* Wait for the PLL to turn on. */ | |
1112 | ||
1113 | /* Now take the PHY out of Reset again */ | |
1114 | tmslow = ssb_read32(dev->dev, SSB_TMSLOW); | |
1115 | tmslow |= SSB_TMSLOW_FGC; | |
1116 | tmslow &= ~B43_TMSLOW_PHYRESET; | |
1117 | ssb_write32(dev->dev, SSB_TMSLOW, tmslow); | |
1118 | ssb_read32(dev->dev, SSB_TMSLOW); /* flush */ | |
1119 | msleep(1); | |
1120 | tmslow &= ~SSB_TMSLOW_FGC; | |
1121 | ssb_write32(dev->dev, SSB_TMSLOW, tmslow); | |
1122 | ssb_read32(dev->dev, SSB_TMSLOW); /* flush */ | |
1123 | msleep(1); | |
1124 | ||
fb11137a MB |
1125 | /* Turn Analog ON, but only if we already know the PHY-type. |
1126 | * This protects against very early setup where we don't know the | |
1127 | * PHY-type, yet. wireless_core_reset will be called once again later, | |
1128 | * when we know the PHY-type. */ | |
1129 | if (dev->phy.ops) | |
cb24f57f | 1130 | dev->phy.ops->switch_analog(dev, 1); |
e4d6b795 MB |
1131 | |
1132 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
1133 | macctl &= ~B43_MACCTL_GMODE; | |
1134 | if (flags & B43_TMSLOW_GMODE) | |
1135 | macctl |= B43_MACCTL_GMODE; | |
1136 | macctl |= B43_MACCTL_IHR_ENABLED; | |
1137 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
1138 | } | |
1139 | ||
1140 | static void handle_irq_transmit_status(struct b43_wldev *dev) | |
1141 | { | |
1142 | u32 v0, v1; | |
1143 | u16 tmp; | |
1144 | struct b43_txstatus stat; | |
1145 | ||
1146 | while (1) { | |
1147 | v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0); | |
1148 | if (!(v0 & 0x00000001)) | |
1149 | break; | |
1150 | v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1); | |
1151 | ||
1152 | stat.cookie = (v0 >> 16); | |
1153 | stat.seq = (v1 & 0x0000FFFF); | |
1154 | stat.phy_stat = ((v1 & 0x00FF0000) >> 16); | |
1155 | tmp = (v0 & 0x0000FFFF); | |
1156 | stat.frame_count = ((tmp & 0xF000) >> 12); | |
1157 | stat.rts_count = ((tmp & 0x0F00) >> 8); | |
1158 | stat.supp_reason = ((tmp & 0x001C) >> 2); | |
1159 | stat.pm_indicated = !!(tmp & 0x0080); | |
1160 | stat.intermediate = !!(tmp & 0x0040); | |
1161 | stat.for_ampdu = !!(tmp & 0x0020); | |
1162 | stat.acked = !!(tmp & 0x0002); | |
1163 | ||
1164 | b43_handle_txstatus(dev, &stat); | |
1165 | } | |
1166 | } | |
1167 | ||
1168 | static void drain_txstatus_queue(struct b43_wldev *dev) | |
1169 | { | |
1170 | u32 dummy; | |
1171 | ||
1172 | if (dev->dev->id.revision < 5) | |
1173 | return; | |
1174 | /* Read all entries from the microcode TXstatus FIFO | |
1175 | * and throw them away. | |
1176 | */ | |
1177 | while (1) { | |
1178 | dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0); | |
1179 | if (!(dummy & 0x00000001)) | |
1180 | break; | |
1181 | dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1); | |
1182 | } | |
1183 | } | |
1184 | ||
1185 | static u32 b43_jssi_read(struct b43_wldev *dev) | |
1186 | { | |
1187 | u32 val = 0; | |
1188 | ||
1189 | val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A); | |
1190 | val <<= 16; | |
1191 | val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088); | |
1192 | ||
1193 | return val; | |
1194 | } | |
1195 | ||
1196 | static void b43_jssi_write(struct b43_wldev *dev, u32 jssi) | |
1197 | { | |
1198 | b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF)); | |
1199 | b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16); | |
1200 | } | |
1201 | ||
1202 | static void b43_generate_noise_sample(struct b43_wldev *dev) | |
1203 | { | |
1204 | b43_jssi_write(dev, 0x7F7F7F7F); | |
aa6c7ae2 MB |
1205 | b43_write32(dev, B43_MMIO_MACCMD, |
1206 | b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE); | |
e4d6b795 MB |
1207 | } |
1208 | ||
1209 | static void b43_calculate_link_quality(struct b43_wldev *dev) | |
1210 | { | |
1211 | /* Top half of Link Quality calculation. */ | |
1212 | ||
ef1a628d MB |
1213 | if (dev->phy.type != B43_PHYTYPE_G) |
1214 | return; | |
e4d6b795 MB |
1215 | if (dev->noisecalc.calculation_running) |
1216 | return; | |
e4d6b795 MB |
1217 | dev->noisecalc.calculation_running = 1; |
1218 | dev->noisecalc.nr_samples = 0; | |
1219 | ||
1220 | b43_generate_noise_sample(dev); | |
1221 | } | |
1222 | ||
1223 | static void handle_irq_noise(struct b43_wldev *dev) | |
1224 | { | |
ef1a628d | 1225 | struct b43_phy_g *phy = dev->phy.g; |
e4d6b795 MB |
1226 | u16 tmp; |
1227 | u8 noise[4]; | |
1228 | u8 i, j; | |
1229 | s32 average; | |
1230 | ||
1231 | /* Bottom half of Link Quality calculation. */ | |
1232 | ||
ef1a628d MB |
1233 | if (dev->phy.type != B43_PHYTYPE_G) |
1234 | return; | |
1235 | ||
98a3b2fe MB |
1236 | /* Possible race condition: It might be possible that the user |
1237 | * changed to a different channel in the meantime since we | |
1238 | * started the calculation. We ignore that fact, since it's | |
1239 | * not really that much of a problem. The background noise is | |
1240 | * an estimation only anyway. Slightly wrong results will get damped | |
1241 | * by the averaging of the 8 sample rounds. Additionally the | |
1242 | * value is shortlived. So it will be replaced by the next noise | |
1243 | * calculation round soon. */ | |
1244 | ||
e4d6b795 | 1245 | B43_WARN_ON(!dev->noisecalc.calculation_running); |
1a09404a | 1246 | *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev)); |
e4d6b795 MB |
1247 | if (noise[0] == 0x7F || noise[1] == 0x7F || |
1248 | noise[2] == 0x7F || noise[3] == 0x7F) | |
1249 | goto generate_new; | |
1250 | ||
1251 | /* Get the noise samples. */ | |
1252 | B43_WARN_ON(dev->noisecalc.nr_samples >= 8); | |
1253 | i = dev->noisecalc.nr_samples; | |
cdbf0846 HH |
1254 | noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); |
1255 | noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); | |
1256 | noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); | |
1257 | noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); | |
e4d6b795 MB |
1258 | dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]]; |
1259 | dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]]; | |
1260 | dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]]; | |
1261 | dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]]; | |
1262 | dev->noisecalc.nr_samples++; | |
1263 | if (dev->noisecalc.nr_samples == 8) { | |
1264 | /* Calculate the Link Quality by the noise samples. */ | |
1265 | average = 0; | |
1266 | for (i = 0; i < 8; i++) { | |
1267 | for (j = 0; j < 4; j++) | |
1268 | average += dev->noisecalc.samples[i][j]; | |
1269 | } | |
1270 | average /= (8 * 4); | |
1271 | average *= 125; | |
1272 | average += 64; | |
1273 | average /= 128; | |
1274 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C); | |
1275 | tmp = (tmp / 128) & 0x1F; | |
1276 | if (tmp >= 8) | |
1277 | average += 2; | |
1278 | else | |
1279 | average -= 25; | |
1280 | if (tmp == 8) | |
1281 | average -= 72; | |
1282 | else | |
1283 | average -= 48; | |
1284 | ||
1285 | dev->stats.link_noise = average; | |
e4d6b795 MB |
1286 | dev->noisecalc.calculation_running = 0; |
1287 | return; | |
1288 | } | |
98a3b2fe | 1289 | generate_new: |
e4d6b795 MB |
1290 | b43_generate_noise_sample(dev); |
1291 | } | |
1292 | ||
1293 | static void handle_irq_tbtt_indication(struct b43_wldev *dev) | |
1294 | { | |
05c914fe | 1295 | if (b43_is_mode(dev->wl, NL80211_IFTYPE_AP)) { |
e4d6b795 MB |
1296 | ///TODO: PS TBTT |
1297 | } else { | |
1298 | if (1 /*FIXME: the last PSpoll frame was sent successfully */ ) | |
1299 | b43_power_saving_ctl_bits(dev, 0); | |
1300 | } | |
05c914fe | 1301 | if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) |
aa6c7ae2 | 1302 | dev->dfq_valid = 1; |
e4d6b795 MB |
1303 | } |
1304 | ||
1305 | static void handle_irq_atim_end(struct b43_wldev *dev) | |
1306 | { | |
aa6c7ae2 MB |
1307 | if (dev->dfq_valid) { |
1308 | b43_write32(dev, B43_MMIO_MACCMD, | |
1309 | b43_read32(dev, B43_MMIO_MACCMD) | |
1310 | | B43_MACCMD_DFQ_VALID); | |
1311 | dev->dfq_valid = 0; | |
1312 | } | |
e4d6b795 MB |
1313 | } |
1314 | ||
1315 | static void handle_irq_pmq(struct b43_wldev *dev) | |
1316 | { | |
1317 | u32 tmp; | |
1318 | ||
1319 | //TODO: AP mode. | |
1320 | ||
1321 | while (1) { | |
1322 | tmp = b43_read32(dev, B43_MMIO_PS_STATUS); | |
1323 | if (!(tmp & 0x00000008)) | |
1324 | break; | |
1325 | } | |
1326 | /* 16bit write is odd, but correct. */ | |
1327 | b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002); | |
1328 | } | |
1329 | ||
1330 | static void b43_write_template_common(struct b43_wldev *dev, | |
99da185a | 1331 | const u8 *data, u16 size, |
e4d6b795 MB |
1332 | u16 ram_offset, |
1333 | u16 shm_size_offset, u8 rate) | |
1334 | { | |
1335 | u32 i, tmp; | |
1336 | struct b43_plcp_hdr4 plcp; | |
1337 | ||
1338 | plcp.data = 0; | |
1339 | b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate); | |
1340 | b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data)); | |
1341 | ram_offset += sizeof(u32); | |
1342 | /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet. | |
1343 | * So leave the first two bytes of the next write blank. | |
1344 | */ | |
1345 | tmp = (u32) (data[0]) << 16; | |
1346 | tmp |= (u32) (data[1]) << 24; | |
1347 | b43_ram_write(dev, ram_offset, tmp); | |
1348 | ram_offset += sizeof(u32); | |
1349 | for (i = 2; i < size; i += sizeof(u32)) { | |
1350 | tmp = (u32) (data[i + 0]); | |
1351 | if (i + 1 < size) | |
1352 | tmp |= (u32) (data[i + 1]) << 8; | |
1353 | if (i + 2 < size) | |
1354 | tmp |= (u32) (data[i + 2]) << 16; | |
1355 | if (i + 3 < size) | |
1356 | tmp |= (u32) (data[i + 3]) << 24; | |
1357 | b43_ram_write(dev, ram_offset + i - 2, tmp); | |
1358 | } | |
1359 | b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset, | |
1360 | size + sizeof(struct b43_plcp_hdr6)); | |
1361 | } | |
1362 | ||
5042c507 MB |
1363 | /* Check if the use of the antenna that ieee80211 told us to |
1364 | * use is possible. This will fall back to DEFAULT. | |
1365 | * "antenna_nr" is the antenna identifier we got from ieee80211. */ | |
1366 | u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev, | |
1367 | u8 antenna_nr) | |
1368 | { | |
1369 | u8 antenna_mask; | |
1370 | ||
1371 | if (antenna_nr == 0) { | |
1372 | /* Zero means "use default antenna". That's always OK. */ | |
1373 | return 0; | |
1374 | } | |
1375 | ||
1376 | /* Get the mask of available antennas. */ | |
1377 | if (dev->phy.gmode) | |
1378 | antenna_mask = dev->dev->bus->sprom.ant_available_bg; | |
1379 | else | |
1380 | antenna_mask = dev->dev->bus->sprom.ant_available_a; | |
1381 | ||
1382 | if (!(antenna_mask & (1 << (antenna_nr - 1)))) { | |
1383 | /* This antenna is not available. Fall back to default. */ | |
1384 | return 0; | |
1385 | } | |
1386 | ||
1387 | return antenna_nr; | |
1388 | } | |
1389 | ||
5042c507 MB |
1390 | /* Convert a b43 antenna number value to the PHY TX control value. */ |
1391 | static u16 b43_antenna_to_phyctl(int antenna) | |
1392 | { | |
1393 | switch (antenna) { | |
1394 | case B43_ANTENNA0: | |
1395 | return B43_TXH_PHY_ANT0; | |
1396 | case B43_ANTENNA1: | |
1397 | return B43_TXH_PHY_ANT1; | |
1398 | case B43_ANTENNA2: | |
1399 | return B43_TXH_PHY_ANT2; | |
1400 | case B43_ANTENNA3: | |
1401 | return B43_TXH_PHY_ANT3; | |
64e368bf GS |
1402 | case B43_ANTENNA_AUTO0: |
1403 | case B43_ANTENNA_AUTO1: | |
5042c507 MB |
1404 | return B43_TXH_PHY_ANT01AUTO; |
1405 | } | |
1406 | B43_WARN_ON(1); | |
1407 | return 0; | |
1408 | } | |
1409 | ||
e4d6b795 MB |
1410 | static void b43_write_beacon_template(struct b43_wldev *dev, |
1411 | u16 ram_offset, | |
5042c507 | 1412 | u16 shm_size_offset) |
e4d6b795 | 1413 | { |
47f76ca3 | 1414 | unsigned int i, len, variable_len; |
e66fee6a MB |
1415 | const struct ieee80211_mgmt *bcn; |
1416 | const u8 *ie; | |
1417 | bool tim_found = 0; | |
5042c507 MB |
1418 | unsigned int rate; |
1419 | u16 ctl; | |
1420 | int antenna; | |
e039fa4a | 1421 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon); |
e4d6b795 | 1422 | |
e66fee6a MB |
1423 | bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data); |
1424 | len = min((size_t) dev->wl->current_beacon->len, | |
e4d6b795 | 1425 | 0x200 - sizeof(struct b43_plcp_hdr6)); |
e039fa4a | 1426 | rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value; |
e66fee6a MB |
1427 | |
1428 | b43_write_template_common(dev, (const u8 *)bcn, | |
e4d6b795 | 1429 | len, ram_offset, shm_size_offset, rate); |
e66fee6a | 1430 | |
5042c507 | 1431 | /* Write the PHY TX control parameters. */ |
0f4ac38b | 1432 | antenna = B43_ANTENNA_DEFAULT; |
5042c507 MB |
1433 | antenna = b43_antenna_to_phyctl(antenna); |
1434 | ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL); | |
1435 | /* We can't send beacons with short preamble. Would get PHY errors. */ | |
1436 | ctl &= ~B43_TXH_PHY_SHORTPRMBL; | |
1437 | ctl &= ~B43_TXH_PHY_ANT; | |
1438 | ctl &= ~B43_TXH_PHY_ENC; | |
1439 | ctl |= antenna; | |
1440 | if (b43_is_cck_rate(rate)) | |
1441 | ctl |= B43_TXH_PHY_ENC_CCK; | |
1442 | else | |
1443 | ctl |= B43_TXH_PHY_ENC_OFDM; | |
1444 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl); | |
1445 | ||
e66fee6a MB |
1446 | /* Find the position of the TIM and the DTIM_period value |
1447 | * and write them to SHM. */ | |
1448 | ie = bcn->u.beacon.variable; | |
47f76ca3 MB |
1449 | variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable); |
1450 | for (i = 0; i < variable_len - 2; ) { | |
e66fee6a MB |
1451 | uint8_t ie_id, ie_len; |
1452 | ||
1453 | ie_id = ie[i]; | |
1454 | ie_len = ie[i + 1]; | |
1455 | if (ie_id == 5) { | |
1456 | u16 tim_position; | |
1457 | u16 dtim_period; | |
1458 | /* This is the TIM Information Element */ | |
1459 | ||
1460 | /* Check whether the ie_len is in the beacon data range. */ | |
47f76ca3 | 1461 | if (variable_len < ie_len + 2 + i) |
e66fee6a MB |
1462 | break; |
1463 | /* A valid TIM is at least 4 bytes long. */ | |
1464 | if (ie_len < 4) | |
1465 | break; | |
1466 | tim_found = 1; | |
1467 | ||
1468 | tim_position = sizeof(struct b43_plcp_hdr6); | |
1469 | tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable); | |
1470 | tim_position += i; | |
1471 | ||
1472 | dtim_period = ie[i + 3]; | |
1473 | ||
1474 | b43_shm_write16(dev, B43_SHM_SHARED, | |
1475 | B43_SHM_SH_TIMBPOS, tim_position); | |
1476 | b43_shm_write16(dev, B43_SHM_SHARED, | |
1477 | B43_SHM_SH_DTIMPER, dtim_period); | |
1478 | break; | |
1479 | } | |
1480 | i += ie_len + 2; | |
1481 | } | |
1482 | if (!tim_found) { | |
04dea136 JB |
1483 | /* |
1484 | * If ucode wants to modify TIM do it behind the beacon, this | |
1485 | * will happen, for example, when doing mesh networking. | |
1486 | */ | |
1487 | b43_shm_write16(dev, B43_SHM_SHARED, | |
1488 | B43_SHM_SH_TIMBPOS, | |
1489 | len + sizeof(struct b43_plcp_hdr6)); | |
1490 | b43_shm_write16(dev, B43_SHM_SHARED, | |
1491 | B43_SHM_SH_DTIMPER, 0); | |
1492 | } | |
1493 | b43dbg(dev->wl, "Updated beacon template at 0x%x\n", ram_offset); | |
e4d6b795 MB |
1494 | } |
1495 | ||
6b4bec01 MB |
1496 | static void b43_upload_beacon0(struct b43_wldev *dev) |
1497 | { | |
1498 | struct b43_wl *wl = dev->wl; | |
1499 | ||
1500 | if (wl->beacon0_uploaded) | |
1501 | return; | |
1502 | b43_write_beacon_template(dev, 0x68, 0x18); | |
6b4bec01 MB |
1503 | wl->beacon0_uploaded = 1; |
1504 | } | |
1505 | ||
1506 | static void b43_upload_beacon1(struct b43_wldev *dev) | |
1507 | { | |
1508 | struct b43_wl *wl = dev->wl; | |
1509 | ||
1510 | if (wl->beacon1_uploaded) | |
1511 | return; | |
1512 | b43_write_beacon_template(dev, 0x468, 0x1A); | |
1513 | wl->beacon1_uploaded = 1; | |
1514 | } | |
1515 | ||
c97a4ccc MB |
1516 | static void handle_irq_beacon(struct b43_wldev *dev) |
1517 | { | |
1518 | struct b43_wl *wl = dev->wl; | |
1519 | u32 cmd, beacon0_valid, beacon1_valid; | |
1520 | ||
05c914fe JB |
1521 | if (!b43_is_mode(wl, NL80211_IFTYPE_AP) && |
1522 | !b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT)) | |
c97a4ccc MB |
1523 | return; |
1524 | ||
1525 | /* This is the bottom half of the asynchronous beacon update. */ | |
1526 | ||
1527 | /* Ignore interrupt in the future. */ | |
13790728 | 1528 | dev->irq_mask &= ~B43_IRQ_BEACON; |
c97a4ccc MB |
1529 | |
1530 | cmd = b43_read32(dev, B43_MMIO_MACCMD); | |
1531 | beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID); | |
1532 | beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID); | |
1533 | ||
1534 | /* Schedule interrupt manually, if busy. */ | |
1535 | if (beacon0_valid && beacon1_valid) { | |
1536 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON); | |
13790728 | 1537 | dev->irq_mask |= B43_IRQ_BEACON; |
c97a4ccc MB |
1538 | return; |
1539 | } | |
1540 | ||
6b4bec01 MB |
1541 | if (unlikely(wl->beacon_templates_virgin)) { |
1542 | /* We never uploaded a beacon before. | |
1543 | * Upload both templates now, but only mark one valid. */ | |
1544 | wl->beacon_templates_virgin = 0; | |
1545 | b43_upload_beacon0(dev); | |
1546 | b43_upload_beacon1(dev); | |
c97a4ccc MB |
1547 | cmd = b43_read32(dev, B43_MMIO_MACCMD); |
1548 | cmd |= B43_MACCMD_BEACON0_VALID; | |
1549 | b43_write32(dev, B43_MMIO_MACCMD, cmd); | |
6b4bec01 MB |
1550 | } else { |
1551 | if (!beacon0_valid) { | |
1552 | b43_upload_beacon0(dev); | |
1553 | cmd = b43_read32(dev, B43_MMIO_MACCMD); | |
1554 | cmd |= B43_MACCMD_BEACON0_VALID; | |
1555 | b43_write32(dev, B43_MMIO_MACCMD, cmd); | |
1556 | } else if (!beacon1_valid) { | |
1557 | b43_upload_beacon1(dev); | |
1558 | cmd = b43_read32(dev, B43_MMIO_MACCMD); | |
1559 | cmd |= B43_MACCMD_BEACON1_VALID; | |
1560 | b43_write32(dev, B43_MMIO_MACCMD, cmd); | |
c97a4ccc | 1561 | } |
c97a4ccc MB |
1562 | } |
1563 | } | |
1564 | ||
36dbd954 MB |
1565 | static void b43_do_beacon_update_trigger_work(struct b43_wldev *dev) |
1566 | { | |
1567 | u32 old_irq_mask = dev->irq_mask; | |
1568 | ||
1569 | /* update beacon right away or defer to irq */ | |
1570 | handle_irq_beacon(dev); | |
1571 | if (old_irq_mask != dev->irq_mask) { | |
1572 | /* The handler updated the IRQ mask. */ | |
1573 | B43_WARN_ON(!dev->irq_mask); | |
1574 | if (b43_read32(dev, B43_MMIO_GEN_IRQ_MASK)) { | |
1575 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); | |
1576 | } else { | |
1577 | /* Device interrupts are currently disabled. That means | |
1578 | * we just ran the hardirq handler and scheduled the | |
1579 | * IRQ thread. The thread will write the IRQ mask when | |
1580 | * it finished, so there's nothing to do here. Writing | |
1581 | * the mask _here_ would incorrectly re-enable IRQs. */ | |
1582 | } | |
1583 | } | |
1584 | } | |
1585 | ||
a82d9922 MB |
1586 | static void b43_beacon_update_trigger_work(struct work_struct *work) |
1587 | { | |
1588 | struct b43_wl *wl = container_of(work, struct b43_wl, | |
1589 | beacon_update_trigger); | |
1590 | struct b43_wldev *dev; | |
1591 | ||
1592 | mutex_lock(&wl->mutex); | |
1593 | dev = wl->current_dev; | |
1594 | if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) { | |
3dbba8e2 | 1595 | if (dev->dev->bus->bustype == SSB_BUSTYPE_SDIO) { |
36dbd954 MB |
1596 | /* wl->mutex is enough. */ |
1597 | b43_do_beacon_update_trigger_work(dev); | |
1598 | mmiowb(); | |
1599 | } else { | |
1600 | spin_lock_irq(&wl->hardirq_lock); | |
1601 | b43_do_beacon_update_trigger_work(dev); | |
1602 | mmiowb(); | |
1603 | spin_unlock_irq(&wl->hardirq_lock); | |
1604 | } | |
a82d9922 MB |
1605 | } |
1606 | mutex_unlock(&wl->mutex); | |
1607 | } | |
1608 | ||
d4df6f1a | 1609 | /* Asynchronously update the packet templates in template RAM. |
36dbd954 | 1610 | * Locking: Requires wl->mutex to be locked. */ |
9d139c81 | 1611 | static void b43_update_templates(struct b43_wl *wl) |
e4d6b795 | 1612 | { |
9d139c81 JB |
1613 | struct sk_buff *beacon; |
1614 | ||
e66fee6a MB |
1615 | /* This is the top half of the ansynchronous beacon update. |
1616 | * The bottom half is the beacon IRQ. | |
1617 | * Beacon update must be asynchronous to avoid sending an | |
1618 | * invalid beacon. This can happen for example, if the firmware | |
1619 | * transmits a beacon while we are updating it. */ | |
e4d6b795 | 1620 | |
9d139c81 JB |
1621 | /* We could modify the existing beacon and set the aid bit in |
1622 | * the TIM field, but that would probably require resizing and | |
1623 | * moving of data within the beacon template. | |
1624 | * Simply request a new beacon and let mac80211 do the hard work. */ | |
1625 | beacon = ieee80211_beacon_get(wl->hw, wl->vif); | |
1626 | if (unlikely(!beacon)) | |
1627 | return; | |
1628 | ||
e66fee6a MB |
1629 | if (wl->current_beacon) |
1630 | dev_kfree_skb_any(wl->current_beacon); | |
1631 | wl->current_beacon = beacon; | |
1632 | wl->beacon0_uploaded = 0; | |
1633 | wl->beacon1_uploaded = 0; | |
42935eca | 1634 | ieee80211_queue_work(wl->hw, &wl->beacon_update_trigger); |
e4d6b795 MB |
1635 | } |
1636 | ||
e4d6b795 MB |
1637 | static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int) |
1638 | { | |
1639 | b43_time_lock(dev); | |
1640 | if (dev->dev->id.revision >= 3) { | |
a82d9922 MB |
1641 | b43_write32(dev, B43_MMIO_TSF_CFP_REP, (beacon_int << 16)); |
1642 | b43_write32(dev, B43_MMIO_TSF_CFP_START, (beacon_int << 10)); | |
e4d6b795 MB |
1643 | } else { |
1644 | b43_write16(dev, 0x606, (beacon_int >> 6)); | |
1645 | b43_write16(dev, 0x610, beacon_int); | |
1646 | } | |
1647 | b43_time_unlock(dev); | |
a82d9922 | 1648 | b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int); |
e4d6b795 MB |
1649 | } |
1650 | ||
afa83e23 MB |
1651 | static void b43_handle_firmware_panic(struct b43_wldev *dev) |
1652 | { | |
1653 | u16 reason; | |
1654 | ||
1655 | /* Read the register that contains the reason code for the panic. */ | |
1656 | reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_FWPANIC_REASON_REG); | |
1657 | b43err(dev->wl, "Whoopsy, firmware panic! Reason: %u\n", reason); | |
1658 | ||
1659 | switch (reason) { | |
1660 | default: | |
1661 | b43dbg(dev->wl, "The panic reason is unknown.\n"); | |
1662 | /* fallthrough */ | |
1663 | case B43_FWPANIC_DIE: | |
1664 | /* Do not restart the controller or firmware. | |
1665 | * The device is nonfunctional from now on. | |
1666 | * Restarting would result in this panic to trigger again, | |
1667 | * so we avoid that recursion. */ | |
1668 | break; | |
1669 | case B43_FWPANIC_RESTART: | |
1670 | b43_controller_restart(dev, "Microcode panic"); | |
1671 | break; | |
1672 | } | |
1673 | } | |
1674 | ||
e4d6b795 MB |
1675 | static void handle_irq_ucode_debug(struct b43_wldev *dev) |
1676 | { | |
e48b0eeb | 1677 | unsigned int i, cnt; |
53c06856 | 1678 | u16 reason, marker_id, marker_line; |
e48b0eeb MB |
1679 | __le16 *buf; |
1680 | ||
1681 | /* The proprietary firmware doesn't have this IRQ. */ | |
1682 | if (!dev->fw.opensource) | |
1683 | return; | |
1684 | ||
afa83e23 MB |
1685 | /* Read the register that contains the reason code for this IRQ. */ |
1686 | reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_DEBUGIRQ_REASON_REG); | |
1687 | ||
e48b0eeb MB |
1688 | switch (reason) { |
1689 | case B43_DEBUGIRQ_PANIC: | |
afa83e23 | 1690 | b43_handle_firmware_panic(dev); |
e48b0eeb MB |
1691 | break; |
1692 | case B43_DEBUGIRQ_DUMP_SHM: | |
1693 | if (!B43_DEBUG) | |
1694 | break; /* Only with driver debugging enabled. */ | |
1695 | buf = kmalloc(4096, GFP_ATOMIC); | |
1696 | if (!buf) { | |
1697 | b43dbg(dev->wl, "SHM-dump: Failed to allocate memory\n"); | |
1698 | goto out; | |
1699 | } | |
1700 | for (i = 0; i < 4096; i += 2) { | |
1701 | u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, i); | |
1702 | buf[i / 2] = cpu_to_le16(tmp); | |
1703 | } | |
1704 | b43info(dev->wl, "Shared memory dump:\n"); | |
1705 | print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, | |
1706 | 16, 2, buf, 4096, 1); | |
1707 | kfree(buf); | |
1708 | break; | |
1709 | case B43_DEBUGIRQ_DUMP_REGS: | |
1710 | if (!B43_DEBUG) | |
1711 | break; /* Only with driver debugging enabled. */ | |
1712 | b43info(dev->wl, "Microcode register dump:\n"); | |
1713 | for (i = 0, cnt = 0; i < 64; i++) { | |
1714 | u16 tmp = b43_shm_read16(dev, B43_SHM_SCRATCH, i); | |
1715 | if (cnt == 0) | |
1716 | printk(KERN_INFO); | |
1717 | printk("r%02u: 0x%04X ", i, tmp); | |
1718 | cnt++; | |
1719 | if (cnt == 6) { | |
1720 | printk("\n"); | |
1721 | cnt = 0; | |
1722 | } | |
1723 | } | |
1724 | printk("\n"); | |
1725 | break; | |
53c06856 MB |
1726 | case B43_DEBUGIRQ_MARKER: |
1727 | if (!B43_DEBUG) | |
1728 | break; /* Only with driver debugging enabled. */ | |
1729 | marker_id = b43_shm_read16(dev, B43_SHM_SCRATCH, | |
1730 | B43_MARKER_ID_REG); | |
1731 | marker_line = b43_shm_read16(dev, B43_SHM_SCRATCH, | |
1732 | B43_MARKER_LINE_REG); | |
1733 | b43info(dev->wl, "The firmware just executed the MARKER(%u) " | |
1734 | "at line number %u\n", | |
1735 | marker_id, marker_line); | |
1736 | break; | |
e48b0eeb MB |
1737 | default: |
1738 | b43dbg(dev->wl, "Debug-IRQ triggered for unknown reason: %u\n", | |
1739 | reason); | |
1740 | } | |
1741 | out: | |
afa83e23 MB |
1742 | /* Acknowledge the debug-IRQ, so the firmware can continue. */ |
1743 | b43_shm_write16(dev, B43_SHM_SCRATCH, | |
1744 | B43_DEBUGIRQ_REASON_REG, B43_DEBUGIRQ_ACK); | |
e4d6b795 MB |
1745 | } |
1746 | ||
36dbd954 | 1747 | static void b43_do_interrupt_thread(struct b43_wldev *dev) |
e4d6b795 MB |
1748 | { |
1749 | u32 reason; | |
1750 | u32 dma_reason[ARRAY_SIZE(dev->dma_reason)]; | |
1751 | u32 merged_dma_reason = 0; | |
21954c36 | 1752 | int i; |
e4d6b795 | 1753 | |
36dbd954 MB |
1754 | if (unlikely(b43_status(dev) != B43_STAT_STARTED)) |
1755 | return; | |
e4d6b795 MB |
1756 | |
1757 | reason = dev->irq_reason; | |
1758 | for (i = 0; i < ARRAY_SIZE(dma_reason); i++) { | |
1759 | dma_reason[i] = dev->dma_reason[i]; | |
1760 | merged_dma_reason |= dma_reason[i]; | |
1761 | } | |
1762 | ||
1763 | if (unlikely(reason & B43_IRQ_MAC_TXERR)) | |
1764 | b43err(dev->wl, "MAC transmission error\n"); | |
1765 | ||
00e0b8cb | 1766 | if (unlikely(reason & B43_IRQ_PHY_TXERR)) { |
e4d6b795 | 1767 | b43err(dev->wl, "PHY transmission error\n"); |
00e0b8cb SB |
1768 | rmb(); |
1769 | if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) { | |
1770 | atomic_set(&dev->phy.txerr_cnt, | |
1771 | B43_PHY_TX_BADNESS_LIMIT); | |
1772 | b43err(dev->wl, "Too many PHY TX errors, " | |
1773 | "restarting the controller\n"); | |
1774 | b43_controller_restart(dev, "PHY TX errors"); | |
1775 | } | |
1776 | } | |
e4d6b795 MB |
1777 | |
1778 | if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK | | |
1779 | B43_DMAIRQ_NONFATALMASK))) { | |
1780 | if (merged_dma_reason & B43_DMAIRQ_FATALMASK) { | |
1781 | b43err(dev->wl, "Fatal DMA error: " | |
1782 | "0x%08X, 0x%08X, 0x%08X, " | |
1783 | "0x%08X, 0x%08X, 0x%08X\n", | |
1784 | dma_reason[0], dma_reason[1], | |
1785 | dma_reason[2], dma_reason[3], | |
1786 | dma_reason[4], dma_reason[5]); | |
1787 | b43_controller_restart(dev, "DMA error"); | |
e4d6b795 MB |
1788 | return; |
1789 | } | |
1790 | if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) { | |
1791 | b43err(dev->wl, "DMA error: " | |
1792 | "0x%08X, 0x%08X, 0x%08X, " | |
1793 | "0x%08X, 0x%08X, 0x%08X\n", | |
1794 | dma_reason[0], dma_reason[1], | |
1795 | dma_reason[2], dma_reason[3], | |
1796 | dma_reason[4], dma_reason[5]); | |
1797 | } | |
1798 | } | |
1799 | ||
1800 | if (unlikely(reason & B43_IRQ_UCODE_DEBUG)) | |
1801 | handle_irq_ucode_debug(dev); | |
1802 | if (reason & B43_IRQ_TBTT_INDI) | |
1803 | handle_irq_tbtt_indication(dev); | |
1804 | if (reason & B43_IRQ_ATIM_END) | |
1805 | handle_irq_atim_end(dev); | |
1806 | if (reason & B43_IRQ_BEACON) | |
1807 | handle_irq_beacon(dev); | |
1808 | if (reason & B43_IRQ_PMQ) | |
1809 | handle_irq_pmq(dev); | |
21954c36 MB |
1810 | if (reason & B43_IRQ_TXFIFO_FLUSH_OK) |
1811 | ;/* TODO */ | |
1812 | if (reason & B43_IRQ_NOISESAMPLE_OK) | |
e4d6b795 MB |
1813 | handle_irq_noise(dev); |
1814 | ||
1815 | /* Check the DMA reason registers for received data. */ | |
5100d5ac MB |
1816 | if (dma_reason[0] & B43_DMAIRQ_RX_DONE) { |
1817 | if (b43_using_pio_transfers(dev)) | |
1818 | b43_pio_rx(dev->pio.rx_queue); | |
1819 | else | |
1820 | b43_dma_rx(dev->dma.rx_ring); | |
1821 | } | |
e4d6b795 MB |
1822 | B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE); |
1823 | B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE); | |
b27faf8e | 1824 | B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE); |
e4d6b795 MB |
1825 | B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE); |
1826 | B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE); | |
1827 | ||
21954c36 | 1828 | if (reason & B43_IRQ_TX_OK) |
e4d6b795 | 1829 | handle_irq_transmit_status(dev); |
e4d6b795 | 1830 | |
36dbd954 | 1831 | /* Re-enable interrupts on the device by restoring the current interrupt mask. */ |
13790728 | 1832 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); |
990b86f4 MB |
1833 | |
1834 | #if B43_DEBUG | |
1835 | if (b43_debug(dev, B43_DBG_VERBOSESTATS)) { | |
1836 | dev->irq_count++; | |
1837 | for (i = 0; i < ARRAY_SIZE(dev->irq_bit_count); i++) { | |
1838 | if (reason & (1 << i)) | |
1839 | dev->irq_bit_count[i]++; | |
1840 | } | |
1841 | } | |
1842 | #endif | |
e4d6b795 MB |
1843 | } |
1844 | ||
36dbd954 MB |
1845 | /* Interrupt thread handler. Handles device interrupts in thread context. */ |
1846 | static irqreturn_t b43_interrupt_thread_handler(int irq, void *dev_id) | |
e4d6b795 | 1847 | { |
36dbd954 | 1848 | struct b43_wldev *dev = dev_id; |
e4d6b795 | 1849 | |
36dbd954 MB |
1850 | mutex_lock(&dev->wl->mutex); |
1851 | b43_do_interrupt_thread(dev); | |
1852 | mmiowb(); | |
1853 | mutex_unlock(&dev->wl->mutex); | |
1854 | ||
1855 | return IRQ_HANDLED; | |
e4d6b795 MB |
1856 | } |
1857 | ||
36dbd954 | 1858 | static irqreturn_t b43_do_interrupt(struct b43_wldev *dev) |
e4d6b795 | 1859 | { |
e4d6b795 MB |
1860 | u32 reason; |
1861 | ||
36dbd954 MB |
1862 | /* This code runs under wl->hardirq_lock, but _only_ on non-SDIO busses. |
1863 | * On SDIO, this runs under wl->mutex. */ | |
e4d6b795 | 1864 | |
e4d6b795 MB |
1865 | reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); |
1866 | if (reason == 0xffffffff) /* shared IRQ */ | |
36dbd954 | 1867 | return IRQ_NONE; |
13790728 | 1868 | reason &= dev->irq_mask; |
e4d6b795 | 1869 | if (!reason) |
36dbd954 | 1870 | return IRQ_HANDLED; |
e4d6b795 MB |
1871 | |
1872 | dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON) | |
1873 | & 0x0001DC00; | |
1874 | dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON) | |
1875 | & 0x0000DC00; | |
1876 | dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON) | |
1877 | & 0x0000DC00; | |
1878 | dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON) | |
1879 | & 0x0001DC00; | |
1880 | dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON) | |
1881 | & 0x0000DC00; | |
13790728 | 1882 | /* Unused ring |
e4d6b795 MB |
1883 | dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON) |
1884 | & 0x0000DC00; | |
13790728 | 1885 | */ |
e4d6b795 | 1886 | |
36dbd954 MB |
1887 | /* ACK the interrupt. */ |
1888 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason); | |
1889 | b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]); | |
1890 | b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]); | |
1891 | b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]); | |
1892 | b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]); | |
1893 | b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]); | |
1894 | /* Unused ring | |
1895 | b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]); | |
1896 | */ | |
1897 | ||
1898 | /* Disable IRQs on the device. The IRQ thread handler will re-enable them. */ | |
13790728 | 1899 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0); |
36dbd954 | 1900 | /* Save the reason bitmasks for the IRQ thread handler. */ |
e4d6b795 | 1901 | dev->irq_reason = reason; |
36dbd954 MB |
1902 | |
1903 | return IRQ_WAKE_THREAD; | |
1904 | } | |
1905 | ||
1906 | /* Interrupt handler top-half. This runs with interrupts disabled. */ | |
1907 | static irqreturn_t b43_interrupt_handler(int irq, void *dev_id) | |
1908 | { | |
1909 | struct b43_wldev *dev = dev_id; | |
1910 | irqreturn_t ret; | |
1911 | ||
1912 | if (unlikely(b43_status(dev) < B43_STAT_STARTED)) | |
1913 | return IRQ_NONE; | |
1914 | ||
1915 | spin_lock(&dev->wl->hardirq_lock); | |
1916 | ret = b43_do_interrupt(dev); | |
e4d6b795 | 1917 | mmiowb(); |
36dbd954 | 1918 | spin_unlock(&dev->wl->hardirq_lock); |
e4d6b795 MB |
1919 | |
1920 | return ret; | |
1921 | } | |
1922 | ||
3dbba8e2 AH |
1923 | /* SDIO interrupt handler. This runs in process context. */ |
1924 | static void b43_sdio_interrupt_handler(struct b43_wldev *dev) | |
1925 | { | |
1926 | struct b43_wl *wl = dev->wl; | |
3dbba8e2 AH |
1927 | irqreturn_t ret; |
1928 | ||
3dbba8e2 | 1929 | mutex_lock(&wl->mutex); |
3dbba8e2 AH |
1930 | |
1931 | ret = b43_do_interrupt(dev); | |
1932 | if (ret == IRQ_WAKE_THREAD) | |
1933 | b43_do_interrupt_thread(dev); | |
1934 | ||
3dbba8e2 AH |
1935 | mutex_unlock(&wl->mutex); |
1936 | } | |
1937 | ||
1a9f5093 | 1938 | void b43_do_release_fw(struct b43_firmware_file *fw) |
61cb5dd6 MB |
1939 | { |
1940 | release_firmware(fw->data); | |
1941 | fw->data = NULL; | |
1942 | fw->filename = NULL; | |
1943 | } | |
1944 | ||
e4d6b795 MB |
1945 | static void b43_release_firmware(struct b43_wldev *dev) |
1946 | { | |
1a9f5093 MB |
1947 | b43_do_release_fw(&dev->fw.ucode); |
1948 | b43_do_release_fw(&dev->fw.pcm); | |
1949 | b43_do_release_fw(&dev->fw.initvals); | |
1950 | b43_do_release_fw(&dev->fw.initvals_band); | |
e4d6b795 MB |
1951 | } |
1952 | ||
eb189d8b | 1953 | static void b43_print_fw_helptext(struct b43_wl *wl, bool error) |
e4d6b795 | 1954 | { |
fc68ed4f HE |
1955 | const char text[] = |
1956 | "You must go to " \ | |
1957 | "http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware " \ | |
1958 | "and download the correct firmware for this driver version. " \ | |
1959 | "Please carefully read all instructions on this website.\n"; | |
eb189d8b | 1960 | |
eb189d8b MB |
1961 | if (error) |
1962 | b43err(wl, text); | |
1963 | else | |
1964 | b43warn(wl, text); | |
e4d6b795 MB |
1965 | } |
1966 | ||
1a9f5093 MB |
1967 | int b43_do_request_fw(struct b43_request_fw_context *ctx, |
1968 | const char *name, | |
1969 | struct b43_firmware_file *fw) | |
e4d6b795 | 1970 | { |
61cb5dd6 | 1971 | const struct firmware *blob; |
e4d6b795 MB |
1972 | struct b43_fw_header *hdr; |
1973 | u32 size; | |
1974 | int err; | |
1975 | ||
61cb5dd6 MB |
1976 | if (!name) { |
1977 | /* Don't fetch anything. Free possibly cached firmware. */ | |
1a9f5093 MB |
1978 | /* FIXME: We should probably keep it anyway, to save some headache |
1979 | * on suspend/resume with multiband devices. */ | |
1980 | b43_do_release_fw(fw); | |
e4d6b795 | 1981 | return 0; |
61cb5dd6 MB |
1982 | } |
1983 | if (fw->filename) { | |
1a9f5093 MB |
1984 | if ((fw->type == ctx->req_type) && |
1985 | (strcmp(fw->filename, name) == 0)) | |
61cb5dd6 MB |
1986 | return 0; /* Already have this fw. */ |
1987 | /* Free the cached firmware first. */ | |
1a9f5093 MB |
1988 | /* FIXME: We should probably do this later after we successfully |
1989 | * got the new fw. This could reduce headache with multiband devices. | |
1990 | * We could also redesign this to cache the firmware for all possible | |
1991 | * bands all the time. */ | |
1992 | b43_do_release_fw(fw); | |
61cb5dd6 | 1993 | } |
e4d6b795 | 1994 | |
1a9f5093 MB |
1995 | switch (ctx->req_type) { |
1996 | case B43_FWTYPE_PROPRIETARY: | |
1997 | snprintf(ctx->fwname, sizeof(ctx->fwname), | |
1998 | "b43%s/%s.fw", | |
1999 | modparam_fwpostfix, name); | |
2000 | break; | |
2001 | case B43_FWTYPE_OPENSOURCE: | |
2002 | snprintf(ctx->fwname, sizeof(ctx->fwname), | |
2003 | "b43-open%s/%s.fw", | |
2004 | modparam_fwpostfix, name); | |
2005 | break; | |
2006 | default: | |
2007 | B43_WARN_ON(1); | |
2008 | return -ENOSYS; | |
2009 | } | |
2010 | err = request_firmware(&blob, ctx->fwname, ctx->dev->dev->dev); | |
68217832 | 2011 | if (err == -ENOENT) { |
1a9f5093 MB |
2012 | snprintf(ctx->errors[ctx->req_type], |
2013 | sizeof(ctx->errors[ctx->req_type]), | |
2014 | "Firmware file \"%s\" not found\n", ctx->fwname); | |
68217832 MB |
2015 | return err; |
2016 | } else if (err) { | |
1a9f5093 MB |
2017 | snprintf(ctx->errors[ctx->req_type], |
2018 | sizeof(ctx->errors[ctx->req_type]), | |
2019 | "Firmware file \"%s\" request failed (err=%d)\n", | |
2020 | ctx->fwname, err); | |
e4d6b795 MB |
2021 | return err; |
2022 | } | |
61cb5dd6 | 2023 | if (blob->size < sizeof(struct b43_fw_header)) |
e4d6b795 | 2024 | goto err_format; |
61cb5dd6 | 2025 | hdr = (struct b43_fw_header *)(blob->data); |
e4d6b795 MB |
2026 | switch (hdr->type) { |
2027 | case B43_FW_TYPE_UCODE: | |
2028 | case B43_FW_TYPE_PCM: | |
2029 | size = be32_to_cpu(hdr->size); | |
61cb5dd6 | 2030 | if (size != blob->size - sizeof(struct b43_fw_header)) |
e4d6b795 MB |
2031 | goto err_format; |
2032 | /* fallthrough */ | |
2033 | case B43_FW_TYPE_IV: | |
2034 | if (hdr->ver != 1) | |
2035 | goto err_format; | |
2036 | break; | |
2037 | default: | |
2038 | goto err_format; | |
2039 | } | |
2040 | ||
61cb5dd6 MB |
2041 | fw->data = blob; |
2042 | fw->filename = name; | |
1a9f5093 | 2043 | fw->type = ctx->req_type; |
61cb5dd6 MB |
2044 | |
2045 | return 0; | |
e4d6b795 MB |
2046 | |
2047 | err_format: | |
1a9f5093 MB |
2048 | snprintf(ctx->errors[ctx->req_type], |
2049 | sizeof(ctx->errors[ctx->req_type]), | |
2050 | "Firmware file \"%s\" format error.\n", ctx->fwname); | |
61cb5dd6 MB |
2051 | release_firmware(blob); |
2052 | ||
e4d6b795 MB |
2053 | return -EPROTO; |
2054 | } | |
2055 | ||
1a9f5093 | 2056 | static int b43_try_request_fw(struct b43_request_fw_context *ctx) |
e4d6b795 | 2057 | { |
1a9f5093 MB |
2058 | struct b43_wldev *dev = ctx->dev; |
2059 | struct b43_firmware *fw = &ctx->dev->fw; | |
2060 | const u8 rev = ctx->dev->dev->id.revision; | |
e4d6b795 MB |
2061 | const char *filename; |
2062 | u32 tmshigh; | |
2063 | int err; | |
2064 | ||
61cb5dd6 | 2065 | /* Get microcode */ |
e4d6b795 | 2066 | tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH); |
61cb5dd6 MB |
2067 | if ((rev >= 5) && (rev <= 10)) |
2068 | filename = "ucode5"; | |
2069 | else if ((rev >= 11) && (rev <= 12)) | |
2070 | filename = "ucode11"; | |
759b973b | 2071 | else if (rev == 13) |
61cb5dd6 | 2072 | filename = "ucode13"; |
759b973b GS |
2073 | else if (rev == 14) |
2074 | filename = "ucode14"; | |
2075 | else if (rev >= 15) | |
2076 | filename = "ucode15"; | |
61cb5dd6 MB |
2077 | else |
2078 | goto err_no_ucode; | |
1a9f5093 | 2079 | err = b43_do_request_fw(ctx, filename, &fw->ucode); |
61cb5dd6 MB |
2080 | if (err) |
2081 | goto err_load; | |
2082 | ||
2083 | /* Get PCM code */ | |
2084 | if ((rev >= 5) && (rev <= 10)) | |
2085 | filename = "pcm5"; | |
2086 | else if (rev >= 11) | |
2087 | filename = NULL; | |
2088 | else | |
2089 | goto err_no_pcm; | |
68217832 | 2090 | fw->pcm_request_failed = 0; |
1a9f5093 | 2091 | err = b43_do_request_fw(ctx, filename, &fw->pcm); |
68217832 MB |
2092 | if (err == -ENOENT) { |
2093 | /* We did not find a PCM file? Not fatal, but | |
2094 | * core rev <= 10 must do without hwcrypto then. */ | |
2095 | fw->pcm_request_failed = 1; | |
2096 | } else if (err) | |
61cb5dd6 MB |
2097 | goto err_load; |
2098 | ||
2099 | /* Get initvals */ | |
2100 | switch (dev->phy.type) { | |
2101 | case B43_PHYTYPE_A: | |
2102 | if ((rev >= 5) && (rev <= 10)) { | |
2103 | if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY) | |
2104 | filename = "a0g1initvals5"; | |
2105 | else | |
2106 | filename = "a0g0initvals5"; | |
2107 | } else | |
2108 | goto err_no_initvals; | |
2109 | break; | |
2110 | case B43_PHYTYPE_G: | |
e4d6b795 | 2111 | if ((rev >= 5) && (rev <= 10)) |
61cb5dd6 | 2112 | filename = "b0g0initvals5"; |
e4d6b795 | 2113 | else if (rev >= 13) |
e9304882 | 2114 | filename = "b0g0initvals13"; |
e4d6b795 | 2115 | else |
61cb5dd6 MB |
2116 | goto err_no_initvals; |
2117 | break; | |
2118 | case B43_PHYTYPE_N: | |
2119 | if ((rev >= 11) && (rev <= 12)) | |
2120 | filename = "n0initvals11"; | |
2121 | else | |
2122 | goto err_no_initvals; | |
2123 | break; | |
759b973b GS |
2124 | case B43_PHYTYPE_LP: |
2125 | if (rev == 13) | |
2126 | filename = "lp0initvals13"; | |
2127 | else if (rev == 14) | |
2128 | filename = "lp0initvals14"; | |
2129 | else if (rev >= 15) | |
2130 | filename = "lp0initvals15"; | |
2131 | else | |
2132 | goto err_no_initvals; | |
2133 | break; | |
61cb5dd6 MB |
2134 | default: |
2135 | goto err_no_initvals; | |
e4d6b795 | 2136 | } |
1a9f5093 | 2137 | err = b43_do_request_fw(ctx, filename, &fw->initvals); |
61cb5dd6 MB |
2138 | if (err) |
2139 | goto err_load; | |
2140 | ||
2141 | /* Get bandswitch initvals */ | |
2142 | switch (dev->phy.type) { | |
2143 | case B43_PHYTYPE_A: | |
2144 | if ((rev >= 5) && (rev <= 10)) { | |
2145 | if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY) | |
2146 | filename = "a0g1bsinitvals5"; | |
2147 | else | |
2148 | filename = "a0g0bsinitvals5"; | |
2149 | } else if (rev >= 11) | |
2150 | filename = NULL; | |
2151 | else | |
2152 | goto err_no_initvals; | |
2153 | break; | |
2154 | case B43_PHYTYPE_G: | |
e4d6b795 | 2155 | if ((rev >= 5) && (rev <= 10)) |
61cb5dd6 | 2156 | filename = "b0g0bsinitvals5"; |
e4d6b795 MB |
2157 | else if (rev >= 11) |
2158 | filename = NULL; | |
2159 | else | |
e4d6b795 | 2160 | goto err_no_initvals; |
61cb5dd6 MB |
2161 | break; |
2162 | case B43_PHYTYPE_N: | |
2163 | if ((rev >= 11) && (rev <= 12)) | |
2164 | filename = "n0bsinitvals11"; | |
2165 | else | |
e4d6b795 | 2166 | goto err_no_initvals; |
61cb5dd6 | 2167 | break; |
759b973b GS |
2168 | case B43_PHYTYPE_LP: |
2169 | if (rev == 13) | |
2170 | filename = "lp0bsinitvals13"; | |
2171 | else if (rev == 14) | |
2172 | filename = "lp0bsinitvals14"; | |
2173 | else if (rev >= 15) | |
2174 | filename = "lp0bsinitvals15"; | |
2175 | else | |
2176 | goto err_no_initvals; | |
2177 | break; | |
61cb5dd6 MB |
2178 | default: |
2179 | goto err_no_initvals; | |
e4d6b795 | 2180 | } |
1a9f5093 | 2181 | err = b43_do_request_fw(ctx, filename, &fw->initvals_band); |
61cb5dd6 MB |
2182 | if (err) |
2183 | goto err_load; | |
e4d6b795 MB |
2184 | |
2185 | return 0; | |
2186 | ||
e4d6b795 | 2187 | err_no_ucode: |
1a9f5093 MB |
2188 | err = ctx->fatal_failure = -EOPNOTSUPP; |
2189 | b43err(dev->wl, "The driver does not know which firmware (ucode) " | |
2190 | "is required for your device (wl-core rev %u)\n", rev); | |
e4d6b795 MB |
2191 | goto error; |
2192 | ||
2193 | err_no_pcm: | |
1a9f5093 MB |
2194 | err = ctx->fatal_failure = -EOPNOTSUPP; |
2195 | b43err(dev->wl, "The driver does not know which firmware (PCM) " | |
2196 | "is required for your device (wl-core rev %u)\n", rev); | |
e4d6b795 MB |
2197 | goto error; |
2198 | ||
2199 | err_no_initvals: | |
1a9f5093 MB |
2200 | err = ctx->fatal_failure = -EOPNOTSUPP; |
2201 | b43err(dev->wl, "The driver does not know which firmware (initvals) " | |
2202 | "is required for your device (wl-core rev %u)\n", rev); | |
2203 | goto error; | |
2204 | ||
2205 | err_load: | |
2206 | /* We failed to load this firmware image. The error message | |
2207 | * already is in ctx->errors. Return and let our caller decide | |
2208 | * what to do. */ | |
e4d6b795 MB |
2209 | goto error; |
2210 | ||
2211 | error: | |
2212 | b43_release_firmware(dev); | |
2213 | return err; | |
2214 | } | |
2215 | ||
1a9f5093 MB |
2216 | static int b43_request_firmware(struct b43_wldev *dev) |
2217 | { | |
2218 | struct b43_request_fw_context *ctx; | |
2219 | unsigned int i; | |
2220 | int err; | |
2221 | const char *errmsg; | |
2222 | ||
2223 | ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); | |
2224 | if (!ctx) | |
2225 | return -ENOMEM; | |
2226 | ctx->dev = dev; | |
2227 | ||
2228 | ctx->req_type = B43_FWTYPE_PROPRIETARY; | |
2229 | err = b43_try_request_fw(ctx); | |
2230 | if (!err) | |
2231 | goto out; /* Successfully loaded it. */ | |
2232 | err = ctx->fatal_failure; | |
2233 | if (err) | |
2234 | goto out; | |
2235 | ||
2236 | ctx->req_type = B43_FWTYPE_OPENSOURCE; | |
2237 | err = b43_try_request_fw(ctx); | |
2238 | if (!err) | |
2239 | goto out; /* Successfully loaded it. */ | |
2240 | err = ctx->fatal_failure; | |
2241 | if (err) | |
2242 | goto out; | |
2243 | ||
2244 | /* Could not find a usable firmware. Print the errors. */ | |
2245 | for (i = 0; i < B43_NR_FWTYPES; i++) { | |
2246 | errmsg = ctx->errors[i]; | |
2247 | if (strlen(errmsg)) | |
2248 | b43err(dev->wl, errmsg); | |
2249 | } | |
2250 | b43_print_fw_helptext(dev->wl, 1); | |
2251 | err = -ENOENT; | |
2252 | ||
2253 | out: | |
2254 | kfree(ctx); | |
2255 | return err; | |
2256 | } | |
2257 | ||
e4d6b795 MB |
2258 | static int b43_upload_microcode(struct b43_wldev *dev) |
2259 | { | |
2260 | const size_t hdr_len = sizeof(struct b43_fw_header); | |
2261 | const __be32 *data; | |
2262 | unsigned int i, len; | |
2263 | u16 fwrev, fwpatch, fwdate, fwtime; | |
1f7d87b0 | 2264 | u32 tmp, macctl; |
e4d6b795 MB |
2265 | int err = 0; |
2266 | ||
1f7d87b0 MB |
2267 | /* Jump the microcode PSM to offset 0 */ |
2268 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
2269 | B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN); | |
2270 | macctl |= B43_MACCTL_PSM_JMP0; | |
2271 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
2272 | /* Zero out all microcode PSM registers and shared memory. */ | |
2273 | for (i = 0; i < 64; i++) | |
2274 | b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0); | |
2275 | for (i = 0; i < 4096; i += 2) | |
2276 | b43_shm_write16(dev, B43_SHM_SHARED, i, 0); | |
2277 | ||
e4d6b795 | 2278 | /* Upload Microcode. */ |
61cb5dd6 MB |
2279 | data = (__be32 *) (dev->fw.ucode.data->data + hdr_len); |
2280 | len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32); | |
e4d6b795 MB |
2281 | b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000); |
2282 | for (i = 0; i < len; i++) { | |
2283 | b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i])); | |
2284 | udelay(10); | |
2285 | } | |
2286 | ||
61cb5dd6 | 2287 | if (dev->fw.pcm.data) { |
e4d6b795 | 2288 | /* Upload PCM data. */ |
61cb5dd6 MB |
2289 | data = (__be32 *) (dev->fw.pcm.data->data + hdr_len); |
2290 | len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32); | |
e4d6b795 MB |
2291 | b43_shm_control_word(dev, B43_SHM_HW, 0x01EA); |
2292 | b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000); | |
2293 | /* No need for autoinc bit in SHM_HW */ | |
2294 | b43_shm_control_word(dev, B43_SHM_HW, 0x01EB); | |
2295 | for (i = 0; i < len; i++) { | |
2296 | b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i])); | |
2297 | udelay(10); | |
2298 | } | |
2299 | } | |
2300 | ||
2301 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL); | |
1f7d87b0 MB |
2302 | |
2303 | /* Start the microcode PSM */ | |
2304 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
2305 | macctl &= ~B43_MACCTL_PSM_JMP0; | |
2306 | macctl |= B43_MACCTL_PSM_RUN; | |
2307 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
e4d6b795 MB |
2308 | |
2309 | /* Wait for the microcode to load and respond */ | |
2310 | i = 0; | |
2311 | while (1) { | |
2312 | tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); | |
2313 | if (tmp == B43_IRQ_MAC_SUSPENDED) | |
2314 | break; | |
2315 | i++; | |
1f7d87b0 | 2316 | if (i >= 20) { |
e4d6b795 | 2317 | b43err(dev->wl, "Microcode not responding\n"); |
eb189d8b | 2318 | b43_print_fw_helptext(dev->wl, 1); |
e4d6b795 | 2319 | err = -ENODEV; |
1f7d87b0 MB |
2320 | goto error; |
2321 | } | |
91d372c0 | 2322 | msleep(50); |
e4d6b795 MB |
2323 | } |
2324 | b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */ | |
2325 | ||
2326 | /* Get and check the revisions. */ | |
2327 | fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV); | |
2328 | fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH); | |
2329 | fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE); | |
2330 | fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME); | |
2331 | ||
2332 | if (fwrev <= 0x128) { | |
2333 | b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from " | |
2334 | "binary drivers older than version 4.x is unsupported. " | |
2335 | "You must upgrade your firmware files.\n"); | |
eb189d8b | 2336 | b43_print_fw_helptext(dev->wl, 1); |
e4d6b795 | 2337 | err = -EOPNOTSUPP; |
1f7d87b0 | 2338 | goto error; |
e4d6b795 | 2339 | } |
e4d6b795 MB |
2340 | dev->fw.rev = fwrev; |
2341 | dev->fw.patch = fwpatch; | |
e48b0eeb MB |
2342 | dev->fw.opensource = (fwdate == 0xFFFF); |
2343 | ||
403a3a13 MB |
2344 | /* Default to use-all-queues. */ |
2345 | dev->wl->hw->queues = dev->wl->mac80211_initially_registered_queues; | |
2346 | dev->qos_enabled = !!modparam_qos; | |
2347 | /* Default to firmware/hardware crypto acceleration. */ | |
2348 | dev->hwcrypto_enabled = 1; | |
2349 | ||
e48b0eeb | 2350 | if (dev->fw.opensource) { |
403a3a13 MB |
2351 | u16 fwcapa; |
2352 | ||
e48b0eeb MB |
2353 | /* Patchlevel info is encoded in the "time" field. */ |
2354 | dev->fw.patch = fwtime; | |
403a3a13 MB |
2355 | b43info(dev->wl, "Loading OpenSource firmware version %u.%u\n", |
2356 | dev->fw.rev, dev->fw.patch); | |
2357 | ||
2358 | fwcapa = b43_fwcapa_read(dev); | |
2359 | if (!(fwcapa & B43_FWCAPA_HWCRYPTO) || dev->fw.pcm_request_failed) { | |
2360 | b43info(dev->wl, "Hardware crypto acceleration not supported by firmware\n"); | |
2361 | /* Disable hardware crypto and fall back to software crypto. */ | |
2362 | dev->hwcrypto_enabled = 0; | |
2363 | } | |
2364 | if (!(fwcapa & B43_FWCAPA_QOS)) { | |
2365 | b43info(dev->wl, "QoS not supported by firmware\n"); | |
2366 | /* Disable QoS. Tweak hw->queues to 1. It will be restored before | |
2367 | * ieee80211_unregister to make sure the networking core can | |
2368 | * properly free possible resources. */ | |
2369 | dev->wl->hw->queues = 1; | |
2370 | dev->qos_enabled = 0; | |
2371 | } | |
e48b0eeb MB |
2372 | } else { |
2373 | b43info(dev->wl, "Loading firmware version %u.%u " | |
2374 | "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", | |
2375 | fwrev, fwpatch, | |
2376 | (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF, | |
2377 | (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F); | |
68217832 MB |
2378 | if (dev->fw.pcm_request_failed) { |
2379 | b43warn(dev->wl, "No \"pcm5.fw\" firmware file found. " | |
2380 | "Hardware accelerated cryptography is disabled.\n"); | |
2381 | b43_print_fw_helptext(dev->wl, 0); | |
2382 | } | |
e48b0eeb | 2383 | } |
e4d6b795 | 2384 | |
eb189d8b | 2385 | if (b43_is_old_txhdr_format(dev)) { |
c557289c MB |
2386 | /* We're over the deadline, but we keep support for old fw |
2387 | * until it turns out to be in major conflict with something new. */ | |
eb189d8b | 2388 | b43warn(dev->wl, "You are using an old firmware image. " |
c557289c MB |
2389 | "Support for old firmware will be removed soon " |
2390 | "(official deadline was July 2008).\n"); | |
eb189d8b MB |
2391 | b43_print_fw_helptext(dev->wl, 0); |
2392 | } | |
2393 | ||
1f7d87b0 MB |
2394 | return 0; |
2395 | ||
2396 | error: | |
2397 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
2398 | macctl &= ~B43_MACCTL_PSM_RUN; | |
2399 | macctl |= B43_MACCTL_PSM_JMP0; | |
2400 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
2401 | ||
e4d6b795 MB |
2402 | return err; |
2403 | } | |
2404 | ||
2405 | static int b43_write_initvals(struct b43_wldev *dev, | |
2406 | const struct b43_iv *ivals, | |
2407 | size_t count, | |
2408 | size_t array_size) | |
2409 | { | |
2410 | const struct b43_iv *iv; | |
2411 | u16 offset; | |
2412 | size_t i; | |
2413 | bool bit32; | |
2414 | ||
2415 | BUILD_BUG_ON(sizeof(struct b43_iv) != 6); | |
2416 | iv = ivals; | |
2417 | for (i = 0; i < count; i++) { | |
2418 | if (array_size < sizeof(iv->offset_size)) | |
2419 | goto err_format; | |
2420 | array_size -= sizeof(iv->offset_size); | |
2421 | offset = be16_to_cpu(iv->offset_size); | |
2422 | bit32 = !!(offset & B43_IV_32BIT); | |
2423 | offset &= B43_IV_OFFSET_MASK; | |
2424 | if (offset >= 0x1000) | |
2425 | goto err_format; | |
2426 | if (bit32) { | |
2427 | u32 value; | |
2428 | ||
2429 | if (array_size < sizeof(iv->data.d32)) | |
2430 | goto err_format; | |
2431 | array_size -= sizeof(iv->data.d32); | |
2432 | ||
533dd1b0 | 2433 | value = get_unaligned_be32(&iv->data.d32); |
e4d6b795 MB |
2434 | b43_write32(dev, offset, value); |
2435 | ||
2436 | iv = (const struct b43_iv *)((const uint8_t *)iv + | |
2437 | sizeof(__be16) + | |
2438 | sizeof(__be32)); | |
2439 | } else { | |
2440 | u16 value; | |
2441 | ||
2442 | if (array_size < sizeof(iv->data.d16)) | |
2443 | goto err_format; | |
2444 | array_size -= sizeof(iv->data.d16); | |
2445 | ||
2446 | value = be16_to_cpu(iv->data.d16); | |
2447 | b43_write16(dev, offset, value); | |
2448 | ||
2449 | iv = (const struct b43_iv *)((const uint8_t *)iv + | |
2450 | sizeof(__be16) + | |
2451 | sizeof(__be16)); | |
2452 | } | |
2453 | } | |
2454 | if (array_size) | |
2455 | goto err_format; | |
2456 | ||
2457 | return 0; | |
2458 | ||
2459 | err_format: | |
2460 | b43err(dev->wl, "Initial Values Firmware file-format error.\n"); | |
eb189d8b | 2461 | b43_print_fw_helptext(dev->wl, 1); |
e4d6b795 MB |
2462 | |
2463 | return -EPROTO; | |
2464 | } | |
2465 | ||
2466 | static int b43_upload_initvals(struct b43_wldev *dev) | |
2467 | { | |
2468 | const size_t hdr_len = sizeof(struct b43_fw_header); | |
2469 | const struct b43_fw_header *hdr; | |
2470 | struct b43_firmware *fw = &dev->fw; | |
2471 | const struct b43_iv *ivals; | |
2472 | size_t count; | |
2473 | int err; | |
2474 | ||
61cb5dd6 MB |
2475 | hdr = (const struct b43_fw_header *)(fw->initvals.data->data); |
2476 | ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len); | |
e4d6b795 MB |
2477 | count = be32_to_cpu(hdr->size); |
2478 | err = b43_write_initvals(dev, ivals, count, | |
61cb5dd6 | 2479 | fw->initvals.data->size - hdr_len); |
e4d6b795 MB |
2480 | if (err) |
2481 | goto out; | |
61cb5dd6 MB |
2482 | if (fw->initvals_band.data) { |
2483 | hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data); | |
2484 | ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len); | |
e4d6b795 MB |
2485 | count = be32_to_cpu(hdr->size); |
2486 | err = b43_write_initvals(dev, ivals, count, | |
61cb5dd6 | 2487 | fw->initvals_band.data->size - hdr_len); |
e4d6b795 MB |
2488 | if (err) |
2489 | goto out; | |
2490 | } | |
2491 | out: | |
2492 | ||
2493 | return err; | |
2494 | } | |
2495 | ||
2496 | /* Initialize the GPIOs | |
2497 | * http://bcm-specs.sipsolutions.net/GPIO | |
2498 | */ | |
2499 | static int b43_gpio_init(struct b43_wldev *dev) | |
2500 | { | |
2501 | struct ssb_bus *bus = dev->dev->bus; | |
2502 | struct ssb_device *gpiodev, *pcidev = NULL; | |
2503 | u32 mask, set; | |
2504 | ||
2505 | b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) | |
2506 | & ~B43_MACCTL_GPOUTSMSK); | |
2507 | ||
e4d6b795 MB |
2508 | b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK) |
2509 | | 0x000F); | |
2510 | ||
2511 | mask = 0x0000001F; | |
2512 | set = 0x0000000F; | |
2513 | if (dev->dev->bus->chip_id == 0x4301) { | |
2514 | mask |= 0x0060; | |
2515 | set |= 0x0060; | |
2516 | } | |
2517 | if (0 /* FIXME: conditional unknown */ ) { | |
2518 | b43_write16(dev, B43_MMIO_GPIO_MASK, | |
2519 | b43_read16(dev, B43_MMIO_GPIO_MASK) | |
2520 | | 0x0100); | |
2521 | mask |= 0x0180; | |
2522 | set |= 0x0180; | |
2523 | } | |
95de2841 | 2524 | if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL) { |
e4d6b795 MB |
2525 | b43_write16(dev, B43_MMIO_GPIO_MASK, |
2526 | b43_read16(dev, B43_MMIO_GPIO_MASK) | |
2527 | | 0x0200); | |
2528 | mask |= 0x0200; | |
2529 | set |= 0x0200; | |
2530 | } | |
2531 | if (dev->dev->id.revision >= 2) | |
2532 | mask |= 0x0010; /* FIXME: This is redundant. */ | |
2533 | ||
2534 | #ifdef CONFIG_SSB_DRIVER_PCICORE | |
2535 | pcidev = bus->pcicore.dev; | |
2536 | #endif | |
2537 | gpiodev = bus->chipco.dev ? : pcidev; | |
2538 | if (!gpiodev) | |
2539 | return 0; | |
2540 | ssb_write32(gpiodev, B43_GPIO_CONTROL, | |
2541 | (ssb_read32(gpiodev, B43_GPIO_CONTROL) | |
2542 | & mask) | set); | |
2543 | ||
2544 | return 0; | |
2545 | } | |
2546 | ||
2547 | /* Turn off all GPIO stuff. Call this on module unload, for example. */ | |
2548 | static void b43_gpio_cleanup(struct b43_wldev *dev) | |
2549 | { | |
2550 | struct ssb_bus *bus = dev->dev->bus; | |
2551 | struct ssb_device *gpiodev, *pcidev = NULL; | |
2552 | ||
2553 | #ifdef CONFIG_SSB_DRIVER_PCICORE | |
2554 | pcidev = bus->pcicore.dev; | |
2555 | #endif | |
2556 | gpiodev = bus->chipco.dev ? : pcidev; | |
2557 | if (!gpiodev) | |
2558 | return; | |
2559 | ssb_write32(gpiodev, B43_GPIO_CONTROL, 0); | |
2560 | } | |
2561 | ||
2562 | /* http://bcm-specs.sipsolutions.net/EnableMac */ | |
f5eda47f | 2563 | void b43_mac_enable(struct b43_wldev *dev) |
e4d6b795 | 2564 | { |
923fd703 MB |
2565 | if (b43_debug(dev, B43_DBG_FIRMWARE)) { |
2566 | u16 fwstate; | |
2567 | ||
2568 | fwstate = b43_shm_read16(dev, B43_SHM_SHARED, | |
2569 | B43_SHM_SH_UCODESTAT); | |
2570 | if ((fwstate != B43_SHM_SH_UCODESTAT_SUSP) && | |
2571 | (fwstate != B43_SHM_SH_UCODESTAT_SLEEP)) { | |
2572 | b43err(dev->wl, "b43_mac_enable(): The firmware " | |
2573 | "should be suspended, but current state is %u\n", | |
2574 | fwstate); | |
2575 | } | |
2576 | } | |
2577 | ||
e4d6b795 MB |
2578 | dev->mac_suspended--; |
2579 | B43_WARN_ON(dev->mac_suspended < 0); | |
2580 | if (dev->mac_suspended == 0) { | |
2581 | b43_write32(dev, B43_MMIO_MACCTL, | |
2582 | b43_read32(dev, B43_MMIO_MACCTL) | |
2583 | | B43_MACCTL_ENABLED); | |
2584 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, | |
2585 | B43_IRQ_MAC_SUSPENDED); | |
2586 | /* Commit writes */ | |
2587 | b43_read32(dev, B43_MMIO_MACCTL); | |
2588 | b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); | |
2589 | b43_power_saving_ctl_bits(dev, 0); | |
2590 | } | |
2591 | } | |
2592 | ||
2593 | /* http://bcm-specs.sipsolutions.net/SuspendMAC */ | |
f5eda47f | 2594 | void b43_mac_suspend(struct b43_wldev *dev) |
e4d6b795 MB |
2595 | { |
2596 | int i; | |
2597 | u32 tmp; | |
2598 | ||
05b64b36 | 2599 | might_sleep(); |
e4d6b795 | 2600 | B43_WARN_ON(dev->mac_suspended < 0); |
05b64b36 | 2601 | |
e4d6b795 MB |
2602 | if (dev->mac_suspended == 0) { |
2603 | b43_power_saving_ctl_bits(dev, B43_PS_AWAKE); | |
2604 | b43_write32(dev, B43_MMIO_MACCTL, | |
2605 | b43_read32(dev, B43_MMIO_MACCTL) | |
2606 | & ~B43_MACCTL_ENABLED); | |
2607 | /* force pci to flush the write */ | |
2608 | b43_read32(dev, B43_MMIO_MACCTL); | |
ba380013 MB |
2609 | for (i = 35; i; i--) { |
2610 | tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); | |
2611 | if (tmp & B43_IRQ_MAC_SUSPENDED) | |
2612 | goto out; | |
2613 | udelay(10); | |
2614 | } | |
2615 | /* Hm, it seems this will take some time. Use msleep(). */ | |
05b64b36 | 2616 | for (i = 40; i; i--) { |
e4d6b795 MB |
2617 | tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); |
2618 | if (tmp & B43_IRQ_MAC_SUSPENDED) | |
2619 | goto out; | |
05b64b36 | 2620 | msleep(1); |
e4d6b795 MB |
2621 | } |
2622 | b43err(dev->wl, "MAC suspend failed\n"); | |
2623 | } | |
05b64b36 | 2624 | out: |
e4d6b795 MB |
2625 | dev->mac_suspended++; |
2626 | } | |
2627 | ||
2628 | static void b43_adjust_opmode(struct b43_wldev *dev) | |
2629 | { | |
2630 | struct b43_wl *wl = dev->wl; | |
2631 | u32 ctl; | |
2632 | u16 cfp_pretbtt; | |
2633 | ||
2634 | ctl = b43_read32(dev, B43_MMIO_MACCTL); | |
2635 | /* Reset status to STA infrastructure mode. */ | |
2636 | ctl &= ~B43_MACCTL_AP; | |
2637 | ctl &= ~B43_MACCTL_KEEP_CTL; | |
2638 | ctl &= ~B43_MACCTL_KEEP_BADPLCP; | |
2639 | ctl &= ~B43_MACCTL_KEEP_BAD; | |
2640 | ctl &= ~B43_MACCTL_PROMISC; | |
4150c572 | 2641 | ctl &= ~B43_MACCTL_BEACPROMISC; |
e4d6b795 MB |
2642 | ctl |= B43_MACCTL_INFRA; |
2643 | ||
05c914fe JB |
2644 | if (b43_is_mode(wl, NL80211_IFTYPE_AP) || |
2645 | b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT)) | |
4150c572 | 2646 | ctl |= B43_MACCTL_AP; |
05c914fe | 2647 | else if (b43_is_mode(wl, NL80211_IFTYPE_ADHOC)) |
4150c572 JB |
2648 | ctl &= ~B43_MACCTL_INFRA; |
2649 | ||
2650 | if (wl->filter_flags & FIF_CONTROL) | |
e4d6b795 | 2651 | ctl |= B43_MACCTL_KEEP_CTL; |
4150c572 JB |
2652 | if (wl->filter_flags & FIF_FCSFAIL) |
2653 | ctl |= B43_MACCTL_KEEP_BAD; | |
2654 | if (wl->filter_flags & FIF_PLCPFAIL) | |
2655 | ctl |= B43_MACCTL_KEEP_BADPLCP; | |
2656 | if (wl->filter_flags & FIF_PROMISC_IN_BSS) | |
e4d6b795 | 2657 | ctl |= B43_MACCTL_PROMISC; |
4150c572 JB |
2658 | if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC) |
2659 | ctl |= B43_MACCTL_BEACPROMISC; | |
2660 | ||
e4d6b795 MB |
2661 | /* Workaround: On old hardware the HW-MAC-address-filter |
2662 | * doesn't work properly, so always run promisc in filter | |
2663 | * it in software. */ | |
2664 | if (dev->dev->id.revision <= 4) | |
2665 | ctl |= B43_MACCTL_PROMISC; | |
2666 | ||
2667 | b43_write32(dev, B43_MMIO_MACCTL, ctl); | |
2668 | ||
2669 | cfp_pretbtt = 2; | |
2670 | if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) { | |
2671 | if (dev->dev->bus->chip_id == 0x4306 && | |
2672 | dev->dev->bus->chip_rev == 3) | |
2673 | cfp_pretbtt = 100; | |
2674 | else | |
2675 | cfp_pretbtt = 50; | |
2676 | } | |
2677 | b43_write16(dev, 0x612, cfp_pretbtt); | |
09ebe2f9 MB |
2678 | |
2679 | /* FIXME: We don't currently implement the PMQ mechanism, | |
2680 | * so always disable it. If we want to implement PMQ, | |
2681 | * we need to enable it here (clear DISCPMQ) in AP mode. | |
2682 | */ | |
2683 | if (0 /* ctl & B43_MACCTL_AP */) { | |
2684 | b43_write32(dev, B43_MMIO_MACCTL, | |
2685 | b43_read32(dev, B43_MMIO_MACCTL) | |
2686 | & ~B43_MACCTL_DISCPMQ); | |
2687 | } else { | |
2688 | b43_write32(dev, B43_MMIO_MACCTL, | |
2689 | b43_read32(dev, B43_MMIO_MACCTL) | |
2690 | | B43_MACCTL_DISCPMQ); | |
2691 | } | |
e4d6b795 MB |
2692 | } |
2693 | ||
2694 | static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm) | |
2695 | { | |
2696 | u16 offset; | |
2697 | ||
2698 | if (is_ofdm) { | |
2699 | offset = 0x480; | |
2700 | offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2; | |
2701 | } else { | |
2702 | offset = 0x4C0; | |
2703 | offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2; | |
2704 | } | |
2705 | b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20, | |
2706 | b43_shm_read16(dev, B43_SHM_SHARED, offset)); | |
2707 | } | |
2708 | ||
2709 | static void b43_rate_memory_init(struct b43_wldev *dev) | |
2710 | { | |
2711 | switch (dev->phy.type) { | |
2712 | case B43_PHYTYPE_A: | |
2713 | case B43_PHYTYPE_G: | |
53a6e234 | 2714 | case B43_PHYTYPE_N: |
9d86a2d5 | 2715 | case B43_PHYTYPE_LP: |
e4d6b795 MB |
2716 | b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1); |
2717 | b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1); | |
2718 | b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1); | |
2719 | b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1); | |
2720 | b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1); | |
2721 | b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1); | |
2722 | b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1); | |
2723 | if (dev->phy.type == B43_PHYTYPE_A) | |
2724 | break; | |
2725 | /* fallthrough */ | |
2726 | case B43_PHYTYPE_B: | |
2727 | b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0); | |
2728 | b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0); | |
2729 | b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0); | |
2730 | b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0); | |
2731 | break; | |
2732 | default: | |
2733 | B43_WARN_ON(1); | |
2734 | } | |
2735 | } | |
2736 | ||
5042c507 MB |
2737 | /* Set the default values for the PHY TX Control Words. */ |
2738 | static void b43_set_phytxctl_defaults(struct b43_wldev *dev) | |
2739 | { | |
2740 | u16 ctl = 0; | |
2741 | ||
2742 | ctl |= B43_TXH_PHY_ENC_CCK; | |
2743 | ctl |= B43_TXH_PHY_ANT01AUTO; | |
2744 | ctl |= B43_TXH_PHY_TXPWR; | |
2745 | ||
2746 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl); | |
2747 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, ctl); | |
2748 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, ctl); | |
2749 | } | |
2750 | ||
e4d6b795 MB |
2751 | /* Set the TX-Antenna for management frames sent by firmware. */ |
2752 | static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna) | |
2753 | { | |
5042c507 | 2754 | u16 ant; |
e4d6b795 MB |
2755 | u16 tmp; |
2756 | ||
5042c507 | 2757 | ant = b43_antenna_to_phyctl(antenna); |
e4d6b795 | 2758 | |
e4d6b795 MB |
2759 | /* For ACK/CTS */ |
2760 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL); | |
eb189d8b | 2761 | tmp = (tmp & ~B43_TXH_PHY_ANT) | ant; |
e4d6b795 MB |
2762 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp); |
2763 | /* For Probe Resposes */ | |
2764 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL); | |
eb189d8b | 2765 | tmp = (tmp & ~B43_TXH_PHY_ANT) | ant; |
e4d6b795 MB |
2766 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp); |
2767 | } | |
2768 | ||
2769 | /* This is the opposite of b43_chip_init() */ | |
2770 | static void b43_chip_exit(struct b43_wldev *dev) | |
2771 | { | |
fb11137a | 2772 | b43_phy_exit(dev); |
e4d6b795 MB |
2773 | b43_gpio_cleanup(dev); |
2774 | /* firmware is released later */ | |
2775 | } | |
2776 | ||
2777 | /* Initialize the chip | |
2778 | * http://bcm-specs.sipsolutions.net/ChipInit | |
2779 | */ | |
2780 | static int b43_chip_init(struct b43_wldev *dev) | |
2781 | { | |
2782 | struct b43_phy *phy = &dev->phy; | |
ef1a628d | 2783 | int err; |
1f7d87b0 | 2784 | u32 value32, macctl; |
e4d6b795 MB |
2785 | u16 value16; |
2786 | ||
1f7d87b0 MB |
2787 | /* Initialize the MAC control */ |
2788 | macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED; | |
2789 | if (dev->phy.gmode) | |
2790 | macctl |= B43_MACCTL_GMODE; | |
2791 | macctl |= B43_MACCTL_INFRA; | |
2792 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
e4d6b795 MB |
2793 | |
2794 | err = b43_request_firmware(dev); | |
2795 | if (err) | |
2796 | goto out; | |
2797 | err = b43_upload_microcode(dev); | |
2798 | if (err) | |
2799 | goto out; /* firmware is released later */ | |
2800 | ||
2801 | err = b43_gpio_init(dev); | |
2802 | if (err) | |
2803 | goto out; /* firmware is released later */ | |
21954c36 | 2804 | |
e4d6b795 MB |
2805 | err = b43_upload_initvals(dev); |
2806 | if (err) | |
1a8d1227 | 2807 | goto err_gpio_clean; |
e4d6b795 | 2808 | |
0b7dcd96 MB |
2809 | /* Turn the Analog on and initialize the PHY. */ |
2810 | phy->ops->switch_analog(dev, 1); | |
e4d6b795 MB |
2811 | err = b43_phy_init(dev); |
2812 | if (err) | |
ef1a628d | 2813 | goto err_gpio_clean; |
e4d6b795 | 2814 | |
ef1a628d MB |
2815 | /* Disable Interference Mitigation. */ |
2816 | if (phy->ops->interf_mitigation) | |
2817 | phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE); | |
e4d6b795 | 2818 | |
ef1a628d MB |
2819 | /* Select the antennae */ |
2820 | if (phy->ops->set_rx_antenna) | |
2821 | phy->ops->set_rx_antenna(dev, B43_ANTENNA_DEFAULT); | |
e4d6b795 MB |
2822 | b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT); |
2823 | ||
2824 | if (phy->type == B43_PHYTYPE_B) { | |
2825 | value16 = b43_read16(dev, 0x005E); | |
2826 | value16 |= 0x0004; | |
2827 | b43_write16(dev, 0x005E, value16); | |
2828 | } | |
2829 | b43_write32(dev, 0x0100, 0x01000000); | |
2830 | if (dev->dev->id.revision < 5) | |
2831 | b43_write32(dev, 0x010C, 0x01000000); | |
2832 | ||
2833 | b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) | |
2834 | & ~B43_MACCTL_INFRA); | |
2835 | b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) | |
2836 | | B43_MACCTL_INFRA); | |
e4d6b795 | 2837 | |
e4d6b795 MB |
2838 | /* Probe Response Timeout value */ |
2839 | /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */ | |
2840 | b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000); | |
2841 | ||
2842 | /* Initially set the wireless operation mode. */ | |
2843 | b43_adjust_opmode(dev); | |
2844 | ||
2845 | if (dev->dev->id.revision < 3) { | |
2846 | b43_write16(dev, 0x060E, 0x0000); | |
2847 | b43_write16(dev, 0x0610, 0x8000); | |
2848 | b43_write16(dev, 0x0604, 0x0000); | |
2849 | b43_write16(dev, 0x0606, 0x0200); | |
2850 | } else { | |
2851 | b43_write32(dev, 0x0188, 0x80000000); | |
2852 | b43_write32(dev, 0x018C, 0x02000000); | |
2853 | } | |
2854 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000); | |
2855 | b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00); | |
2856 | b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00); | |
2857 | b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00); | |
2858 | b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00); | |
2859 | b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00); | |
2860 | b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00); | |
2861 | ||
2862 | value32 = ssb_read32(dev->dev, SSB_TMSLOW); | |
2863 | value32 |= 0x00100000; | |
2864 | ssb_write32(dev->dev, SSB_TMSLOW, value32); | |
2865 | ||
2866 | b43_write16(dev, B43_MMIO_POWERUP_DELAY, | |
2867 | dev->dev->bus->chipco.fast_pwrup_delay); | |
2868 | ||
2869 | err = 0; | |
2870 | b43dbg(dev->wl, "Chip initialized\n"); | |
21954c36 | 2871 | out: |
e4d6b795 MB |
2872 | return err; |
2873 | ||
1a8d1227 | 2874 | err_gpio_clean: |
e4d6b795 | 2875 | b43_gpio_cleanup(dev); |
21954c36 | 2876 | return err; |
e4d6b795 MB |
2877 | } |
2878 | ||
e4d6b795 MB |
2879 | static void b43_periodic_every60sec(struct b43_wldev *dev) |
2880 | { | |
ef1a628d | 2881 | const struct b43_phy_operations *ops = dev->phy.ops; |
e4d6b795 | 2882 | |
ef1a628d MB |
2883 | if (ops->pwork_60sec) |
2884 | ops->pwork_60sec(dev); | |
18c8adeb MB |
2885 | |
2886 | /* Force check the TX power emission now. */ | |
2887 | b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME); | |
e4d6b795 MB |
2888 | } |
2889 | ||
2890 | static void b43_periodic_every30sec(struct b43_wldev *dev) | |
2891 | { | |
2892 | /* Update device statistics. */ | |
2893 | b43_calculate_link_quality(dev); | |
2894 | } | |
2895 | ||
2896 | static void b43_periodic_every15sec(struct b43_wldev *dev) | |
2897 | { | |
2898 | struct b43_phy *phy = &dev->phy; | |
9b839a74 MB |
2899 | u16 wdr; |
2900 | ||
2901 | if (dev->fw.opensource) { | |
2902 | /* Check if the firmware is still alive. | |
2903 | * It will reset the watchdog counter to 0 in its idle loop. */ | |
2904 | wdr = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_WATCHDOG_REG); | |
2905 | if (unlikely(wdr)) { | |
2906 | b43err(dev->wl, "Firmware watchdog: The firmware died!\n"); | |
2907 | b43_controller_restart(dev, "Firmware watchdog"); | |
2908 | return; | |
2909 | } else { | |
2910 | b43_shm_write16(dev, B43_SHM_SCRATCH, | |
2911 | B43_WATCHDOG_REG, 1); | |
2912 | } | |
2913 | } | |
e4d6b795 | 2914 | |
ef1a628d MB |
2915 | if (phy->ops->pwork_15sec) |
2916 | phy->ops->pwork_15sec(dev); | |
2917 | ||
00e0b8cb SB |
2918 | atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT); |
2919 | wmb(); | |
990b86f4 MB |
2920 | |
2921 | #if B43_DEBUG | |
2922 | if (b43_debug(dev, B43_DBG_VERBOSESTATS)) { | |
2923 | unsigned int i; | |
2924 | ||
2925 | b43dbg(dev->wl, "Stats: %7u IRQs/sec, %7u TX/sec, %7u RX/sec\n", | |
2926 | dev->irq_count / 15, | |
2927 | dev->tx_count / 15, | |
2928 | dev->rx_count / 15); | |
2929 | dev->irq_count = 0; | |
2930 | dev->tx_count = 0; | |
2931 | dev->rx_count = 0; | |
2932 | for (i = 0; i < ARRAY_SIZE(dev->irq_bit_count); i++) { | |
2933 | if (dev->irq_bit_count[i]) { | |
2934 | b43dbg(dev->wl, "Stats: %7u IRQ-%02u/sec (0x%08X)\n", | |
2935 | dev->irq_bit_count[i] / 15, i, (1 << i)); | |
2936 | dev->irq_bit_count[i] = 0; | |
2937 | } | |
2938 | } | |
2939 | } | |
2940 | #endif | |
e4d6b795 MB |
2941 | } |
2942 | ||
e4d6b795 MB |
2943 | static void do_periodic_work(struct b43_wldev *dev) |
2944 | { | |
2945 | unsigned int state; | |
2946 | ||
2947 | state = dev->periodic_state; | |
42bb4cd5 | 2948 | if (state % 4 == 0) |
e4d6b795 | 2949 | b43_periodic_every60sec(dev); |
42bb4cd5 | 2950 | if (state % 2 == 0) |
e4d6b795 | 2951 | b43_periodic_every30sec(dev); |
42bb4cd5 | 2952 | b43_periodic_every15sec(dev); |
e4d6b795 MB |
2953 | } |
2954 | ||
05b64b36 MB |
2955 | /* Periodic work locking policy: |
2956 | * The whole periodic work handler is protected by | |
2957 | * wl->mutex. If another lock is needed somewhere in the | |
2958 | * pwork callchain, it's aquired in-place, where it's needed. | |
e4d6b795 | 2959 | */ |
e4d6b795 MB |
2960 | static void b43_periodic_work_handler(struct work_struct *work) |
2961 | { | |
05b64b36 MB |
2962 | struct b43_wldev *dev = container_of(work, struct b43_wldev, |
2963 | periodic_work.work); | |
2964 | struct b43_wl *wl = dev->wl; | |
2965 | unsigned long delay; | |
e4d6b795 | 2966 | |
05b64b36 | 2967 | mutex_lock(&wl->mutex); |
e4d6b795 MB |
2968 | |
2969 | if (unlikely(b43_status(dev) != B43_STAT_STARTED)) | |
2970 | goto out; | |
2971 | if (b43_debug(dev, B43_DBG_PWORK_STOP)) | |
2972 | goto out_requeue; | |
2973 | ||
05b64b36 | 2974 | do_periodic_work(dev); |
e4d6b795 | 2975 | |
e4d6b795 | 2976 | dev->periodic_state++; |
42bb4cd5 | 2977 | out_requeue: |
e4d6b795 MB |
2978 | if (b43_debug(dev, B43_DBG_PWORK_FAST)) |
2979 | delay = msecs_to_jiffies(50); | |
2980 | else | |
82cd682d | 2981 | delay = round_jiffies_relative(HZ * 15); |
42935eca | 2982 | ieee80211_queue_delayed_work(wl->hw, &dev->periodic_work, delay); |
42bb4cd5 | 2983 | out: |
05b64b36 | 2984 | mutex_unlock(&wl->mutex); |
e4d6b795 MB |
2985 | } |
2986 | ||
2987 | static void b43_periodic_tasks_setup(struct b43_wldev *dev) | |
2988 | { | |
2989 | struct delayed_work *work = &dev->periodic_work; | |
2990 | ||
2991 | dev->periodic_state = 0; | |
2992 | INIT_DELAYED_WORK(work, b43_periodic_work_handler); | |
42935eca | 2993 | ieee80211_queue_delayed_work(dev->wl->hw, work, 0); |
e4d6b795 MB |
2994 | } |
2995 | ||
f3dd3fcc | 2996 | /* Check if communication with the device works correctly. */ |
e4d6b795 MB |
2997 | static int b43_validate_chipaccess(struct b43_wldev *dev) |
2998 | { | |
f62ae6cd | 2999 | u32 v, backup0, backup4; |
e4d6b795 | 3000 | |
f62ae6cd MB |
3001 | backup0 = b43_shm_read32(dev, B43_SHM_SHARED, 0); |
3002 | backup4 = b43_shm_read32(dev, B43_SHM_SHARED, 4); | |
f3dd3fcc MB |
3003 | |
3004 | /* Check for read/write and endianness problems. */ | |
e4d6b795 MB |
3005 | b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55); |
3006 | if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55) | |
3007 | goto error; | |
f3dd3fcc MB |
3008 | b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA); |
3009 | if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA) | |
e4d6b795 MB |
3010 | goto error; |
3011 | ||
f62ae6cd MB |
3012 | /* Check if unaligned 32bit SHM_SHARED access works properly. |
3013 | * However, don't bail out on failure, because it's noncritical. */ | |
3014 | b43_shm_write16(dev, B43_SHM_SHARED, 0, 0x1122); | |
3015 | b43_shm_write16(dev, B43_SHM_SHARED, 2, 0x3344); | |
3016 | b43_shm_write16(dev, B43_SHM_SHARED, 4, 0x5566); | |
3017 | b43_shm_write16(dev, B43_SHM_SHARED, 6, 0x7788); | |
3018 | if (b43_shm_read32(dev, B43_SHM_SHARED, 2) != 0x55663344) | |
3019 | b43warn(dev->wl, "Unaligned 32bit SHM read access is broken\n"); | |
3020 | b43_shm_write32(dev, B43_SHM_SHARED, 2, 0xAABBCCDD); | |
3021 | if (b43_shm_read16(dev, B43_SHM_SHARED, 0) != 0x1122 || | |
3022 | b43_shm_read16(dev, B43_SHM_SHARED, 2) != 0xCCDD || | |
3023 | b43_shm_read16(dev, B43_SHM_SHARED, 4) != 0xAABB || | |
3024 | b43_shm_read16(dev, B43_SHM_SHARED, 6) != 0x7788) | |
3025 | b43warn(dev->wl, "Unaligned 32bit SHM write access is broken\n"); | |
3026 | ||
3027 | b43_shm_write32(dev, B43_SHM_SHARED, 0, backup0); | |
3028 | b43_shm_write32(dev, B43_SHM_SHARED, 4, backup4); | |
f3dd3fcc MB |
3029 | |
3030 | if ((dev->dev->id.revision >= 3) && (dev->dev->id.revision <= 10)) { | |
3031 | /* The 32bit register shadows the two 16bit registers | |
3032 | * with update sideeffects. Validate this. */ | |
3033 | b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA); | |
3034 | b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB); | |
3035 | if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB) | |
3036 | goto error; | |
3037 | if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC) | |
3038 | goto error; | |
3039 | } | |
3040 | b43_write32(dev, B43_MMIO_TSF_CFP_START, 0); | |
3041 | ||
3042 | v = b43_read32(dev, B43_MMIO_MACCTL); | |
3043 | v |= B43_MACCTL_GMODE; | |
3044 | if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED)) | |
e4d6b795 MB |
3045 | goto error; |
3046 | ||
3047 | return 0; | |
f3dd3fcc | 3048 | error: |
e4d6b795 MB |
3049 | b43err(dev->wl, "Failed to validate the chipaccess\n"); |
3050 | return -ENODEV; | |
3051 | } | |
3052 | ||
3053 | static void b43_security_init(struct b43_wldev *dev) | |
3054 | { | |
e4d6b795 MB |
3055 | dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP); |
3056 | /* KTP is a word address, but we address SHM bytewise. | |
3057 | * So multiply by two. | |
3058 | */ | |
3059 | dev->ktp *= 2; | |
66d2d089 MB |
3060 | /* Number of RCMTA address slots */ |
3061 | b43_write16(dev, B43_MMIO_RCMTA_COUNT, B43_NR_PAIRWISE_KEYS); | |
3062 | /* Clear the key memory. */ | |
e4d6b795 MB |
3063 | b43_clear_keys(dev); |
3064 | } | |
3065 | ||
616de35d | 3066 | #ifdef CONFIG_B43_HWRNG |
99da185a | 3067 | static int b43_rng_read(struct hwrng *rng, u32 *data) |
e4d6b795 MB |
3068 | { |
3069 | struct b43_wl *wl = (struct b43_wl *)rng->priv; | |
a78b3bb2 MB |
3070 | struct b43_wldev *dev; |
3071 | int count = -ENODEV; | |
e4d6b795 | 3072 | |
a78b3bb2 MB |
3073 | mutex_lock(&wl->mutex); |
3074 | dev = wl->current_dev; | |
3075 | if (likely(dev && b43_status(dev) >= B43_STAT_INITIALIZED)) { | |
3076 | *data = b43_read16(dev, B43_MMIO_RNG); | |
3077 | count = sizeof(u16); | |
3078 | } | |
3079 | mutex_unlock(&wl->mutex); | |
e4d6b795 | 3080 | |
a78b3bb2 | 3081 | return count; |
e4d6b795 | 3082 | } |
616de35d | 3083 | #endif /* CONFIG_B43_HWRNG */ |
e4d6b795 | 3084 | |
b844eba2 | 3085 | static void b43_rng_exit(struct b43_wl *wl) |
e4d6b795 | 3086 | { |
616de35d | 3087 | #ifdef CONFIG_B43_HWRNG |
e4d6b795 | 3088 | if (wl->rng_initialized) |
b844eba2 | 3089 | hwrng_unregister(&wl->rng); |
616de35d | 3090 | #endif /* CONFIG_B43_HWRNG */ |
e4d6b795 MB |
3091 | } |
3092 | ||
3093 | static int b43_rng_init(struct b43_wl *wl) | |
3094 | { | |
616de35d | 3095 | int err = 0; |
e4d6b795 | 3096 | |
616de35d | 3097 | #ifdef CONFIG_B43_HWRNG |
e4d6b795 MB |
3098 | snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name), |
3099 | "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy)); | |
3100 | wl->rng.name = wl->rng_name; | |
3101 | wl->rng.data_read = b43_rng_read; | |
3102 | wl->rng.priv = (unsigned long)wl; | |
3103 | wl->rng_initialized = 1; | |
3104 | err = hwrng_register(&wl->rng); | |
3105 | if (err) { | |
3106 | wl->rng_initialized = 0; | |
3107 | b43err(wl, "Failed to register the random " | |
3108 | "number generator (%d)\n", err); | |
3109 | } | |
616de35d | 3110 | #endif /* CONFIG_B43_HWRNG */ |
e4d6b795 MB |
3111 | |
3112 | return err; | |
3113 | } | |
3114 | ||
f5d40eed | 3115 | static void b43_tx_work(struct work_struct *work) |
e4d6b795 | 3116 | { |
f5d40eed MB |
3117 | struct b43_wl *wl = container_of(work, struct b43_wl, tx_work); |
3118 | struct b43_wldev *dev; | |
3119 | struct sk_buff *skb; | |
3120 | int err = 0; | |
e4d6b795 | 3121 | |
f5d40eed MB |
3122 | mutex_lock(&wl->mutex); |
3123 | dev = wl->current_dev; | |
3124 | if (unlikely(!dev || b43_status(dev) < B43_STAT_STARTED)) { | |
3125 | mutex_unlock(&wl->mutex); | |
3126 | return; | |
5100d5ac | 3127 | } |
21a75d77 | 3128 | |
f5d40eed MB |
3129 | while (skb_queue_len(&wl->tx_queue)) { |
3130 | skb = skb_dequeue(&wl->tx_queue); | |
21a75d77 | 3131 | |
21a75d77 | 3132 | if (b43_using_pio_transfers(dev)) |
e039fa4a | 3133 | err = b43_pio_tx(dev, skb); |
21a75d77 | 3134 | else |
e039fa4a | 3135 | err = b43_dma_tx(dev, skb); |
f5d40eed MB |
3136 | if (unlikely(err)) |
3137 | dev_kfree_skb(skb); /* Drop it */ | |
21a75d77 MB |
3138 | } |
3139 | ||
990b86f4 MB |
3140 | #if B43_DEBUG |
3141 | dev->tx_count++; | |
3142 | #endif | |
f5d40eed MB |
3143 | mutex_unlock(&wl->mutex); |
3144 | } | |
21a75d77 | 3145 | |
f5d40eed MB |
3146 | static int b43_op_tx(struct ieee80211_hw *hw, |
3147 | struct sk_buff *skb) | |
3148 | { | |
3149 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3150 | ||
3151 | if (unlikely(skb->len < 2 + 2 + 6)) { | |
3152 | /* Too short, this can't be a valid frame. */ | |
3153 | dev_kfree_skb_any(skb); | |
3154 | return NETDEV_TX_OK; | |
3155 | } | |
3156 | B43_WARN_ON(skb_shinfo(skb)->nr_frags); | |
3157 | ||
3158 | skb_queue_tail(&wl->tx_queue, skb); | |
3159 | ieee80211_queue_work(wl->hw, &wl->tx_work); | |
c9e8eae0 | 3160 | |
e4d6b795 MB |
3161 | return NETDEV_TX_OK; |
3162 | } | |
3163 | ||
e6f5b934 MB |
3164 | static void b43_qos_params_upload(struct b43_wldev *dev, |
3165 | const struct ieee80211_tx_queue_params *p, | |
3166 | u16 shm_offset) | |
3167 | { | |
3168 | u16 params[B43_NR_QOSPARAMS]; | |
0b57664c | 3169 | int bslots, tmp; |
e6f5b934 MB |
3170 | unsigned int i; |
3171 | ||
b0544eb6 MB |
3172 | if (!dev->qos_enabled) |
3173 | return; | |
3174 | ||
0b57664c | 3175 | bslots = b43_read16(dev, B43_MMIO_RNG) & p->cw_min; |
e6f5b934 MB |
3176 | |
3177 | memset(¶ms, 0, sizeof(params)); | |
3178 | ||
3179 | params[B43_QOSPARAM_TXOP] = p->txop * 32; | |
0b57664c JB |
3180 | params[B43_QOSPARAM_CWMIN] = p->cw_min; |
3181 | params[B43_QOSPARAM_CWMAX] = p->cw_max; | |
3182 | params[B43_QOSPARAM_CWCUR] = p->cw_min; | |
3183 | params[B43_QOSPARAM_AIFS] = p->aifs; | |
e6f5b934 | 3184 | params[B43_QOSPARAM_BSLOTS] = bslots; |
0b57664c | 3185 | params[B43_QOSPARAM_REGGAP] = bslots + p->aifs; |
e6f5b934 MB |
3186 | |
3187 | for (i = 0; i < ARRAY_SIZE(params); i++) { | |
3188 | if (i == B43_QOSPARAM_STATUS) { | |
3189 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, | |
3190 | shm_offset + (i * 2)); | |
3191 | /* Mark the parameters as updated. */ | |
3192 | tmp |= 0x100; | |
3193 | b43_shm_write16(dev, B43_SHM_SHARED, | |
3194 | shm_offset + (i * 2), | |
3195 | tmp); | |
3196 | } else { | |
3197 | b43_shm_write16(dev, B43_SHM_SHARED, | |
3198 | shm_offset + (i * 2), | |
3199 | params[i]); | |
3200 | } | |
3201 | } | |
3202 | } | |
3203 | ||
c40c1129 MB |
3204 | /* Mapping of mac80211 queue numbers to b43 QoS SHM offsets. */ |
3205 | static const u16 b43_qos_shm_offsets[] = { | |
3206 | /* [mac80211-queue-nr] = SHM_OFFSET, */ | |
3207 | [0] = B43_QOS_VOICE, | |
3208 | [1] = B43_QOS_VIDEO, | |
3209 | [2] = B43_QOS_BESTEFFORT, | |
3210 | [3] = B43_QOS_BACKGROUND, | |
3211 | }; | |
3212 | ||
5a5f3b40 MB |
3213 | /* Update all QOS parameters in hardware. */ |
3214 | static void b43_qos_upload_all(struct b43_wldev *dev) | |
e6f5b934 MB |
3215 | { |
3216 | struct b43_wl *wl = dev->wl; | |
3217 | struct b43_qos_params *params; | |
e6f5b934 MB |
3218 | unsigned int i; |
3219 | ||
b0544eb6 MB |
3220 | if (!dev->qos_enabled) |
3221 | return; | |
3222 | ||
c40c1129 MB |
3223 | BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != |
3224 | ARRAY_SIZE(wl->qos_params)); | |
e6f5b934 MB |
3225 | |
3226 | b43_mac_suspend(dev); | |
e6f5b934 MB |
3227 | for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) { |
3228 | params = &(wl->qos_params[i]); | |
5a5f3b40 MB |
3229 | b43_qos_params_upload(dev, &(params->p), |
3230 | b43_qos_shm_offsets[i]); | |
e6f5b934 | 3231 | } |
e6f5b934 MB |
3232 | b43_mac_enable(dev); |
3233 | } | |
3234 | ||
3235 | static void b43_qos_clear(struct b43_wl *wl) | |
3236 | { | |
3237 | struct b43_qos_params *params; | |
3238 | unsigned int i; | |
3239 | ||
c40c1129 MB |
3240 | /* Initialize QoS parameters to sane defaults. */ |
3241 | ||
3242 | BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != | |
3243 | ARRAY_SIZE(wl->qos_params)); | |
3244 | ||
e6f5b934 MB |
3245 | for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) { |
3246 | params = &(wl->qos_params[i]); | |
3247 | ||
c40c1129 MB |
3248 | switch (b43_qos_shm_offsets[i]) { |
3249 | case B43_QOS_VOICE: | |
3250 | params->p.txop = 0; | |
3251 | params->p.aifs = 2; | |
3252 | params->p.cw_min = 0x0001; | |
3253 | params->p.cw_max = 0x0001; | |
3254 | break; | |
3255 | case B43_QOS_VIDEO: | |
3256 | params->p.txop = 0; | |
3257 | params->p.aifs = 2; | |
3258 | params->p.cw_min = 0x0001; | |
3259 | params->p.cw_max = 0x0001; | |
3260 | break; | |
3261 | case B43_QOS_BESTEFFORT: | |
3262 | params->p.txop = 0; | |
3263 | params->p.aifs = 3; | |
3264 | params->p.cw_min = 0x0001; | |
3265 | params->p.cw_max = 0x03FF; | |
3266 | break; | |
3267 | case B43_QOS_BACKGROUND: | |
3268 | params->p.txop = 0; | |
3269 | params->p.aifs = 7; | |
3270 | params->p.cw_min = 0x0001; | |
3271 | params->p.cw_max = 0x03FF; | |
3272 | break; | |
3273 | default: | |
3274 | B43_WARN_ON(1); | |
3275 | } | |
e6f5b934 MB |
3276 | } |
3277 | } | |
3278 | ||
3279 | /* Initialize the core's QOS capabilities */ | |
3280 | static void b43_qos_init(struct b43_wldev *dev) | |
3281 | { | |
b0544eb6 MB |
3282 | if (!dev->qos_enabled) { |
3283 | /* Disable QOS support. */ | |
3284 | b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_EDCF); | |
3285 | b43_write16(dev, B43_MMIO_IFSCTL, | |
3286 | b43_read16(dev, B43_MMIO_IFSCTL) | |
3287 | & ~B43_MMIO_IFSCTL_USE_EDCF); | |
3288 | b43dbg(dev->wl, "QoS disabled\n"); | |
3289 | return; | |
3290 | } | |
3291 | ||
e6f5b934 | 3292 | /* Upload the current QOS parameters. */ |
5a5f3b40 | 3293 | b43_qos_upload_all(dev); |
e6f5b934 MB |
3294 | |
3295 | /* Enable QOS support. */ | |
3296 | b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF); | |
3297 | b43_write16(dev, B43_MMIO_IFSCTL, | |
3298 | b43_read16(dev, B43_MMIO_IFSCTL) | |
3299 | | B43_MMIO_IFSCTL_USE_EDCF); | |
b0544eb6 | 3300 | b43dbg(dev->wl, "QoS enabled\n"); |
e6f5b934 MB |
3301 | } |
3302 | ||
e100bb64 | 3303 | static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue, |
40faacc4 | 3304 | const struct ieee80211_tx_queue_params *params) |
e4d6b795 | 3305 | { |
e6f5b934 | 3306 | struct b43_wl *wl = hw_to_b43_wl(hw); |
5a5f3b40 | 3307 | struct b43_wldev *dev; |
e6f5b934 | 3308 | unsigned int queue = (unsigned int)_queue; |
5a5f3b40 | 3309 | int err = -ENODEV; |
e6f5b934 MB |
3310 | |
3311 | if (queue >= ARRAY_SIZE(wl->qos_params)) { | |
3312 | /* Queue not available or don't support setting | |
3313 | * params on this queue. Return success to not | |
3314 | * confuse mac80211. */ | |
3315 | return 0; | |
3316 | } | |
5a5f3b40 MB |
3317 | BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != |
3318 | ARRAY_SIZE(wl->qos_params)); | |
e6f5b934 | 3319 | |
5a5f3b40 MB |
3320 | mutex_lock(&wl->mutex); |
3321 | dev = wl->current_dev; | |
3322 | if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) | |
3323 | goto out_unlock; | |
e6f5b934 | 3324 | |
5a5f3b40 MB |
3325 | memcpy(&(wl->qos_params[queue].p), params, sizeof(*params)); |
3326 | b43_mac_suspend(dev); | |
3327 | b43_qos_params_upload(dev, &(wl->qos_params[queue].p), | |
3328 | b43_qos_shm_offsets[queue]); | |
3329 | b43_mac_enable(dev); | |
3330 | err = 0; | |
e6f5b934 | 3331 | |
5a5f3b40 MB |
3332 | out_unlock: |
3333 | mutex_unlock(&wl->mutex); | |
3334 | ||
3335 | return err; | |
e4d6b795 MB |
3336 | } |
3337 | ||
40faacc4 MB |
3338 | static int b43_op_get_tx_stats(struct ieee80211_hw *hw, |
3339 | struct ieee80211_tx_queue_stats *stats) | |
e4d6b795 MB |
3340 | { |
3341 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
36dbd954 | 3342 | struct b43_wldev *dev; |
e4d6b795 MB |
3343 | int err = -ENODEV; |
3344 | ||
36dbd954 MB |
3345 | mutex_lock(&wl->mutex); |
3346 | dev = wl->current_dev; | |
3347 | if (dev && b43_status(dev) >= B43_STAT_STARTED) { | |
5100d5ac MB |
3348 | if (b43_using_pio_transfers(dev)) |
3349 | b43_pio_get_tx_stats(dev, stats); | |
3350 | else | |
3351 | b43_dma_get_tx_stats(dev, stats); | |
e4d6b795 MB |
3352 | err = 0; |
3353 | } | |
36dbd954 MB |
3354 | mutex_unlock(&wl->mutex); |
3355 | ||
e4d6b795 MB |
3356 | return err; |
3357 | } | |
3358 | ||
40faacc4 MB |
3359 | static int b43_op_get_stats(struct ieee80211_hw *hw, |
3360 | struct ieee80211_low_level_stats *stats) | |
e4d6b795 MB |
3361 | { |
3362 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
e4d6b795 | 3363 | |
36dbd954 | 3364 | mutex_lock(&wl->mutex); |
e4d6b795 | 3365 | memcpy(stats, &wl->ieee_stats, sizeof(*stats)); |
36dbd954 | 3366 | mutex_unlock(&wl->mutex); |
e4d6b795 MB |
3367 | |
3368 | return 0; | |
3369 | } | |
3370 | ||
08e87a83 AF |
3371 | static u64 b43_op_get_tsf(struct ieee80211_hw *hw) |
3372 | { | |
3373 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3374 | struct b43_wldev *dev; | |
3375 | u64 tsf; | |
3376 | ||
3377 | mutex_lock(&wl->mutex); | |
08e87a83 AF |
3378 | dev = wl->current_dev; |
3379 | ||
3380 | if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) | |
3381 | b43_tsf_read(dev, &tsf); | |
3382 | else | |
3383 | tsf = 0; | |
3384 | ||
08e87a83 AF |
3385 | mutex_unlock(&wl->mutex); |
3386 | ||
3387 | return tsf; | |
3388 | } | |
3389 | ||
3390 | static void b43_op_set_tsf(struct ieee80211_hw *hw, u64 tsf) | |
3391 | { | |
3392 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3393 | struct b43_wldev *dev; | |
3394 | ||
3395 | mutex_lock(&wl->mutex); | |
08e87a83 AF |
3396 | dev = wl->current_dev; |
3397 | ||
3398 | if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) | |
3399 | b43_tsf_write(dev, tsf); | |
3400 | ||
08e87a83 AF |
3401 | mutex_unlock(&wl->mutex); |
3402 | } | |
3403 | ||
e4d6b795 MB |
3404 | static void b43_put_phy_into_reset(struct b43_wldev *dev) |
3405 | { | |
3406 | struct ssb_device *sdev = dev->dev; | |
3407 | u32 tmslow; | |
3408 | ||
3409 | tmslow = ssb_read32(sdev, SSB_TMSLOW); | |
3410 | tmslow &= ~B43_TMSLOW_GMODE; | |
3411 | tmslow |= B43_TMSLOW_PHYRESET; | |
3412 | tmslow |= SSB_TMSLOW_FGC; | |
3413 | ssb_write32(sdev, SSB_TMSLOW, tmslow); | |
3414 | msleep(1); | |
3415 | ||
3416 | tmslow = ssb_read32(sdev, SSB_TMSLOW); | |
3417 | tmslow &= ~SSB_TMSLOW_FGC; | |
3418 | tmslow |= B43_TMSLOW_PHYRESET; | |
3419 | ssb_write32(sdev, SSB_TMSLOW, tmslow); | |
3420 | msleep(1); | |
3421 | } | |
3422 | ||
99da185a | 3423 | static const char *band_to_string(enum ieee80211_band band) |
bb1eeff1 MB |
3424 | { |
3425 | switch (band) { | |
3426 | case IEEE80211_BAND_5GHZ: | |
3427 | return "5"; | |
3428 | case IEEE80211_BAND_2GHZ: | |
3429 | return "2.4"; | |
3430 | default: | |
3431 | break; | |
3432 | } | |
3433 | B43_WARN_ON(1); | |
3434 | return ""; | |
3435 | } | |
3436 | ||
e4d6b795 | 3437 | /* Expects wl->mutex locked */ |
bb1eeff1 | 3438 | static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan) |
e4d6b795 | 3439 | { |
bb1eeff1 | 3440 | struct b43_wldev *up_dev = NULL; |
e4d6b795 | 3441 | struct b43_wldev *down_dev; |
bb1eeff1 | 3442 | struct b43_wldev *d; |
e4d6b795 | 3443 | int err; |
922d8a0b | 3444 | bool uninitialized_var(gmode); |
e4d6b795 MB |
3445 | int prev_status; |
3446 | ||
bb1eeff1 MB |
3447 | /* Find a device and PHY which supports the band. */ |
3448 | list_for_each_entry(d, &wl->devlist, list) { | |
3449 | switch (chan->band) { | |
3450 | case IEEE80211_BAND_5GHZ: | |
3451 | if (d->phy.supports_5ghz) { | |
3452 | up_dev = d; | |
3453 | gmode = 0; | |
3454 | } | |
3455 | break; | |
3456 | case IEEE80211_BAND_2GHZ: | |
3457 | if (d->phy.supports_2ghz) { | |
3458 | up_dev = d; | |
3459 | gmode = 1; | |
3460 | } | |
3461 | break; | |
3462 | default: | |
3463 | B43_WARN_ON(1); | |
3464 | return -EINVAL; | |
3465 | } | |
3466 | if (up_dev) | |
3467 | break; | |
3468 | } | |
3469 | if (!up_dev) { | |
3470 | b43err(wl, "Could not find a device for %s-GHz band operation\n", | |
3471 | band_to_string(chan->band)); | |
3472 | return -ENODEV; | |
e4d6b795 MB |
3473 | } |
3474 | if ((up_dev == wl->current_dev) && | |
3475 | (!!wl->current_dev->phy.gmode == !!gmode)) { | |
3476 | /* This device is already running. */ | |
3477 | return 0; | |
3478 | } | |
bb1eeff1 MB |
3479 | b43dbg(wl, "Switching to %s-GHz band\n", |
3480 | band_to_string(chan->band)); | |
e4d6b795 MB |
3481 | down_dev = wl->current_dev; |
3482 | ||
3483 | prev_status = b43_status(down_dev); | |
3484 | /* Shutdown the currently running core. */ | |
3485 | if (prev_status >= B43_STAT_STARTED) | |
36dbd954 | 3486 | down_dev = b43_wireless_core_stop(down_dev); |
e4d6b795 MB |
3487 | if (prev_status >= B43_STAT_INITIALIZED) |
3488 | b43_wireless_core_exit(down_dev); | |
3489 | ||
3490 | if (down_dev != up_dev) { | |
3491 | /* We switch to a different core, so we put PHY into | |
3492 | * RESET on the old core. */ | |
3493 | b43_put_phy_into_reset(down_dev); | |
3494 | } | |
3495 | ||
3496 | /* Now start the new core. */ | |
3497 | up_dev->phy.gmode = gmode; | |
3498 | if (prev_status >= B43_STAT_INITIALIZED) { | |
3499 | err = b43_wireless_core_init(up_dev); | |
3500 | if (err) { | |
3501 | b43err(wl, "Fatal: Could not initialize device for " | |
bb1eeff1 MB |
3502 | "selected %s-GHz band\n", |
3503 | band_to_string(chan->band)); | |
e4d6b795 MB |
3504 | goto init_failure; |
3505 | } | |
3506 | } | |
3507 | if (prev_status >= B43_STAT_STARTED) { | |
3508 | err = b43_wireless_core_start(up_dev); | |
3509 | if (err) { | |
3510 | b43err(wl, "Fatal: Coult not start device for " | |
bb1eeff1 MB |
3511 | "selected %s-GHz band\n", |
3512 | band_to_string(chan->band)); | |
e4d6b795 MB |
3513 | b43_wireless_core_exit(up_dev); |
3514 | goto init_failure; | |
3515 | } | |
3516 | } | |
3517 | B43_WARN_ON(b43_status(up_dev) != prev_status); | |
3518 | ||
3519 | wl->current_dev = up_dev; | |
3520 | ||
3521 | return 0; | |
bb1eeff1 | 3522 | init_failure: |
e4d6b795 MB |
3523 | /* Whoops, failed to init the new core. No core is operating now. */ |
3524 | wl->current_dev = NULL; | |
3525 | return err; | |
3526 | } | |
3527 | ||
9124b077 JB |
3528 | /* Write the short and long frame retry limit values. */ |
3529 | static void b43_set_retry_limits(struct b43_wldev *dev, | |
3530 | unsigned int short_retry, | |
3531 | unsigned int long_retry) | |
3532 | { | |
3533 | /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing | |
3534 | * the chip-internal counter. */ | |
3535 | short_retry = min(short_retry, (unsigned int)0xF); | |
3536 | long_retry = min(long_retry, (unsigned int)0xF); | |
3537 | ||
3538 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT, | |
3539 | short_retry); | |
3540 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT, | |
3541 | long_retry); | |
3542 | } | |
3543 | ||
e8975581 | 3544 | static int b43_op_config(struct ieee80211_hw *hw, u32 changed) |
e4d6b795 MB |
3545 | { |
3546 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3547 | struct b43_wldev *dev; | |
3548 | struct b43_phy *phy; | |
e8975581 | 3549 | struct ieee80211_conf *conf = &hw->conf; |
9db1f6d7 | 3550 | int antenna; |
e4d6b795 | 3551 | int err = 0; |
e4d6b795 | 3552 | |
e4d6b795 MB |
3553 | mutex_lock(&wl->mutex); |
3554 | ||
bb1eeff1 MB |
3555 | /* Switch the band (if necessary). This might change the active core. */ |
3556 | err = b43_switch_band(wl, conf->channel); | |
e4d6b795 MB |
3557 | if (err) |
3558 | goto out_unlock_mutex; | |
3559 | dev = wl->current_dev; | |
3560 | phy = &dev->phy; | |
3561 | ||
d10d0e57 MB |
3562 | b43_mac_suspend(dev); |
3563 | ||
9124b077 JB |
3564 | if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) |
3565 | b43_set_retry_limits(dev, conf->short_frame_max_tx_count, | |
3566 | conf->long_frame_max_tx_count); | |
3567 | changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS; | |
3568 | if (!changed) | |
d10d0e57 | 3569 | goto out_mac_enable; |
e4d6b795 MB |
3570 | |
3571 | /* Switch to the requested channel. | |
3572 | * The firmware takes care of races with the TX handler. */ | |
8318d78a | 3573 | if (conf->channel->hw_value != phy->channel) |
ef1a628d | 3574 | b43_switch_channel(dev, conf->channel->hw_value); |
e4d6b795 | 3575 | |
d42ce84a JB |
3576 | dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_RADIOTAP); |
3577 | ||
e4d6b795 MB |
3578 | /* Adjust the desired TX power level. */ |
3579 | if (conf->power_level != 0) { | |
18c8adeb MB |
3580 | if (conf->power_level != phy->desired_txpower) { |
3581 | phy->desired_txpower = conf->power_level; | |
3582 | b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME | | |
3583 | B43_TXPWR_IGNORE_TSSI); | |
e4d6b795 MB |
3584 | } |
3585 | } | |
3586 | ||
3587 | /* Antennas for RX and management frame TX. */ | |
0f4ac38b | 3588 | antenna = B43_ANTENNA_DEFAULT; |
9db1f6d7 | 3589 | b43_mgmtframe_txantenna(dev, antenna); |
0f4ac38b | 3590 | antenna = B43_ANTENNA_DEFAULT; |
ef1a628d MB |
3591 | if (phy->ops->set_rx_antenna) |
3592 | phy->ops->set_rx_antenna(dev, antenna); | |
e4d6b795 | 3593 | |
fd4973c5 LF |
3594 | if (wl->radio_enabled != phy->radio_on) { |
3595 | if (wl->radio_enabled) { | |
19d337df | 3596 | b43_software_rfkill(dev, false); |
fda9abcf MB |
3597 | b43info(dev->wl, "Radio turned on by software\n"); |
3598 | if (!dev->radio_hw_enable) { | |
3599 | b43info(dev->wl, "The hardware RF-kill button " | |
3600 | "still turns the radio physically off. " | |
3601 | "Press the button to turn it on.\n"); | |
3602 | } | |
3603 | } else { | |
19d337df | 3604 | b43_software_rfkill(dev, true); |
fda9abcf MB |
3605 | b43info(dev->wl, "Radio turned off by software\n"); |
3606 | } | |
3607 | } | |
3608 | ||
d10d0e57 MB |
3609 | out_mac_enable: |
3610 | b43_mac_enable(dev); | |
3611 | out_unlock_mutex: | |
e4d6b795 MB |
3612 | mutex_unlock(&wl->mutex); |
3613 | ||
3614 | return err; | |
3615 | } | |
3616 | ||
881d948c | 3617 | static void b43_update_basic_rates(struct b43_wldev *dev, u32 brates) |
c7ab5ef9 JB |
3618 | { |
3619 | struct ieee80211_supported_band *sband = | |
3620 | dev->wl->hw->wiphy->bands[b43_current_band(dev->wl)]; | |
3621 | struct ieee80211_rate *rate; | |
3622 | int i; | |
3623 | u16 basic, direct, offset, basic_offset, rateptr; | |
3624 | ||
3625 | for (i = 0; i < sband->n_bitrates; i++) { | |
3626 | rate = &sband->bitrates[i]; | |
3627 | ||
3628 | if (b43_is_cck_rate(rate->hw_value)) { | |
3629 | direct = B43_SHM_SH_CCKDIRECT; | |
3630 | basic = B43_SHM_SH_CCKBASIC; | |
3631 | offset = b43_plcp_get_ratecode_cck(rate->hw_value); | |
3632 | offset &= 0xF; | |
3633 | } else { | |
3634 | direct = B43_SHM_SH_OFDMDIRECT; | |
3635 | basic = B43_SHM_SH_OFDMBASIC; | |
3636 | offset = b43_plcp_get_ratecode_ofdm(rate->hw_value); | |
3637 | offset &= 0xF; | |
3638 | } | |
3639 | ||
3640 | rate = ieee80211_get_response_rate(sband, brates, rate->bitrate); | |
3641 | ||
3642 | if (b43_is_cck_rate(rate->hw_value)) { | |
3643 | basic_offset = b43_plcp_get_ratecode_cck(rate->hw_value); | |
3644 | basic_offset &= 0xF; | |
3645 | } else { | |
3646 | basic_offset = b43_plcp_get_ratecode_ofdm(rate->hw_value); | |
3647 | basic_offset &= 0xF; | |
3648 | } | |
3649 | ||
3650 | /* | |
3651 | * Get the pointer that we need to point to | |
3652 | * from the direct map | |
3653 | */ | |
3654 | rateptr = b43_shm_read16(dev, B43_SHM_SHARED, | |
3655 | direct + 2 * basic_offset); | |
3656 | /* and write it to the basic map */ | |
3657 | b43_shm_write16(dev, B43_SHM_SHARED, basic + 2 * offset, | |
3658 | rateptr); | |
3659 | } | |
3660 | } | |
3661 | ||
3662 | static void b43_op_bss_info_changed(struct ieee80211_hw *hw, | |
3663 | struct ieee80211_vif *vif, | |
3664 | struct ieee80211_bss_conf *conf, | |
3665 | u32 changed) | |
3666 | { | |
3667 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3668 | struct b43_wldev *dev; | |
c7ab5ef9 JB |
3669 | |
3670 | mutex_lock(&wl->mutex); | |
3671 | ||
3672 | dev = wl->current_dev; | |
d10d0e57 | 3673 | if (!dev || b43_status(dev) < B43_STAT_STARTED) |
c7ab5ef9 | 3674 | goto out_unlock_mutex; |
2d0ddec5 JB |
3675 | |
3676 | B43_WARN_ON(wl->vif != vif); | |
3677 | ||
3678 | if (changed & BSS_CHANGED_BSSID) { | |
2d0ddec5 JB |
3679 | if (conf->bssid) |
3680 | memcpy(wl->bssid, conf->bssid, ETH_ALEN); | |
3681 | else | |
3682 | memset(wl->bssid, 0, ETH_ALEN); | |
3f0d843b | 3683 | } |
2d0ddec5 | 3684 | |
3f0d843b JB |
3685 | if (b43_status(dev) >= B43_STAT_INITIALIZED) { |
3686 | if (changed & BSS_CHANGED_BEACON && | |
3687 | (b43_is_mode(wl, NL80211_IFTYPE_AP) || | |
3688 | b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) || | |
3689 | b43_is_mode(wl, NL80211_IFTYPE_ADHOC))) | |
3690 | b43_update_templates(wl); | |
3691 | ||
3692 | if (changed & BSS_CHANGED_BSSID) | |
2d0ddec5 | 3693 | b43_write_mac_bssid_templates(dev); |
2d0ddec5 JB |
3694 | } |
3695 | ||
c7ab5ef9 JB |
3696 | b43_mac_suspend(dev); |
3697 | ||
57c4d7b4 JB |
3698 | /* Update templates for AP/mesh mode. */ |
3699 | if (changed & BSS_CHANGED_BEACON_INT && | |
3700 | (b43_is_mode(wl, NL80211_IFTYPE_AP) || | |
3701 | b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) || | |
3702 | b43_is_mode(wl, NL80211_IFTYPE_ADHOC))) | |
3703 | b43_set_beacon_int(dev, conf->beacon_int); | |
3704 | ||
c7ab5ef9 JB |
3705 | if (changed & BSS_CHANGED_BASIC_RATES) |
3706 | b43_update_basic_rates(dev, conf->basic_rates); | |
3707 | ||
3708 | if (changed & BSS_CHANGED_ERP_SLOT) { | |
3709 | if (conf->use_short_slot) | |
3710 | b43_short_slot_timing_enable(dev); | |
3711 | else | |
3712 | b43_short_slot_timing_disable(dev); | |
3713 | } | |
3714 | ||
3715 | b43_mac_enable(dev); | |
d10d0e57 | 3716 | out_unlock_mutex: |
c7ab5ef9 | 3717 | mutex_unlock(&wl->mutex); |
c7ab5ef9 JB |
3718 | } |
3719 | ||
40faacc4 | 3720 | static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
dc822b5d JB |
3721 | struct ieee80211_vif *vif, struct ieee80211_sta *sta, |
3722 | struct ieee80211_key_conf *key) | |
e4d6b795 MB |
3723 | { |
3724 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
c6dfc9a8 | 3725 | struct b43_wldev *dev; |
e4d6b795 MB |
3726 | u8 algorithm; |
3727 | u8 index; | |
c6dfc9a8 | 3728 | int err; |
060210f9 | 3729 | static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
e4d6b795 MB |
3730 | |
3731 | if (modparam_nohwcrypt) | |
3732 | return -ENOSPC; /* User disabled HW-crypto */ | |
3733 | ||
c6dfc9a8 | 3734 | mutex_lock(&wl->mutex); |
c6dfc9a8 MB |
3735 | |
3736 | dev = wl->current_dev; | |
3737 | err = -ENODEV; | |
3738 | if (!dev || b43_status(dev) < B43_STAT_INITIALIZED) | |
3739 | goto out_unlock; | |
3740 | ||
403a3a13 | 3741 | if (dev->fw.pcm_request_failed || !dev->hwcrypto_enabled) { |
68217832 MB |
3742 | /* We don't have firmware for the crypto engine. |
3743 | * Must use software-crypto. */ | |
3744 | err = -EOPNOTSUPP; | |
3745 | goto out_unlock; | |
3746 | } | |
3747 | ||
c6dfc9a8 | 3748 | err = -EINVAL; |
e4d6b795 | 3749 | switch (key->alg) { |
e4d6b795 | 3750 | case ALG_WEP: |
e31a16d6 | 3751 | if (key->keylen == WLAN_KEY_LEN_WEP40) |
e4d6b795 MB |
3752 | algorithm = B43_SEC_ALGO_WEP40; |
3753 | else | |
3754 | algorithm = B43_SEC_ALGO_WEP104; | |
3755 | break; | |
3756 | case ALG_TKIP: | |
3757 | algorithm = B43_SEC_ALGO_TKIP; | |
3758 | break; | |
3759 | case ALG_CCMP: | |
3760 | algorithm = B43_SEC_ALGO_AES; | |
3761 | break; | |
3762 | default: | |
3763 | B43_WARN_ON(1); | |
c6dfc9a8 | 3764 | goto out_unlock; |
e4d6b795 | 3765 | } |
e4d6b795 MB |
3766 | index = (u8) (key->keyidx); |
3767 | if (index > 3) | |
e4d6b795 | 3768 | goto out_unlock; |
e4d6b795 MB |
3769 | |
3770 | switch (cmd) { | |
3771 | case SET_KEY: | |
035d0243 | 3772 | if (algorithm == B43_SEC_ALGO_TKIP && |
3773 | (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE) || | |
3774 | !modparam_hwtkip)) { | |
3775 | /* We support only pairwise key */ | |
e4d6b795 MB |
3776 | err = -EOPNOTSUPP; |
3777 | goto out_unlock; | |
3778 | } | |
3779 | ||
e808e586 | 3780 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { |
dc822b5d JB |
3781 | if (WARN_ON(!sta)) { |
3782 | err = -EOPNOTSUPP; | |
3783 | goto out_unlock; | |
3784 | } | |
e808e586 | 3785 | /* Pairwise key with an assigned MAC address. */ |
e4d6b795 | 3786 | err = b43_key_write(dev, -1, algorithm, |
dc822b5d JB |
3787 | key->key, key->keylen, |
3788 | sta->addr, key); | |
e808e586 MB |
3789 | } else { |
3790 | /* Group key */ | |
3791 | err = b43_key_write(dev, index, algorithm, | |
3792 | key->key, key->keylen, NULL, key); | |
e4d6b795 MB |
3793 | } |
3794 | if (err) | |
3795 | goto out_unlock; | |
3796 | ||
3797 | if (algorithm == B43_SEC_ALGO_WEP40 || | |
3798 | algorithm == B43_SEC_ALGO_WEP104) { | |
3799 | b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS); | |
3800 | } else { | |
3801 | b43_hf_write(dev, | |
3802 | b43_hf_read(dev) & ~B43_HF_USEDEFKEYS); | |
3803 | } | |
3804 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
035d0243 | 3805 | if (algorithm == B43_SEC_ALGO_TKIP) |
3806 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
e4d6b795 MB |
3807 | break; |
3808 | case DISABLE_KEY: { | |
3809 | err = b43_key_clear(dev, key->hw_key_idx); | |
3810 | if (err) | |
3811 | goto out_unlock; | |
3812 | break; | |
3813 | } | |
3814 | default: | |
3815 | B43_WARN_ON(1); | |
3816 | } | |
9cf7f247 | 3817 | |
e4d6b795 | 3818 | out_unlock: |
e4d6b795 MB |
3819 | if (!err) { |
3820 | b43dbg(wl, "%s hardware based encryption for keyidx: %d, " | |
e174961c | 3821 | "mac: %pM\n", |
e4d6b795 | 3822 | cmd == SET_KEY ? "Using" : "Disabling", key->keyidx, |
a1d88210 | 3823 | sta ? sta->addr : bcast_addr); |
9cf7f247 | 3824 | b43_dump_keymemory(dev); |
e4d6b795 | 3825 | } |
9cf7f247 MB |
3826 | mutex_unlock(&wl->mutex); |
3827 | ||
e4d6b795 MB |
3828 | return err; |
3829 | } | |
3830 | ||
40faacc4 MB |
3831 | static void b43_op_configure_filter(struct ieee80211_hw *hw, |
3832 | unsigned int changed, unsigned int *fflags, | |
3ac64bee | 3833 | u64 multicast) |
e4d6b795 MB |
3834 | { |
3835 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
36dbd954 | 3836 | struct b43_wldev *dev; |
e4d6b795 | 3837 | |
36dbd954 MB |
3838 | mutex_lock(&wl->mutex); |
3839 | dev = wl->current_dev; | |
4150c572 JB |
3840 | if (!dev) { |
3841 | *fflags = 0; | |
36dbd954 | 3842 | goto out_unlock; |
e4d6b795 | 3843 | } |
4150c572 | 3844 | |
4150c572 JB |
3845 | *fflags &= FIF_PROMISC_IN_BSS | |
3846 | FIF_ALLMULTI | | |
3847 | FIF_FCSFAIL | | |
3848 | FIF_PLCPFAIL | | |
3849 | FIF_CONTROL | | |
3850 | FIF_OTHER_BSS | | |
3851 | FIF_BCN_PRBRESP_PROMISC; | |
3852 | ||
3853 | changed &= FIF_PROMISC_IN_BSS | | |
3854 | FIF_ALLMULTI | | |
3855 | FIF_FCSFAIL | | |
3856 | FIF_PLCPFAIL | | |
3857 | FIF_CONTROL | | |
3858 | FIF_OTHER_BSS | | |
3859 | FIF_BCN_PRBRESP_PROMISC; | |
3860 | ||
3861 | wl->filter_flags = *fflags; | |
3862 | ||
3863 | if (changed && b43_status(dev) >= B43_STAT_INITIALIZED) | |
3864 | b43_adjust_opmode(dev); | |
36dbd954 MB |
3865 | |
3866 | out_unlock: | |
3867 | mutex_unlock(&wl->mutex); | |
e4d6b795 MB |
3868 | } |
3869 | ||
36dbd954 MB |
3870 | /* Locking: wl->mutex |
3871 | * Returns the current dev. This might be different from the passed in dev, | |
3872 | * because the core might be gone away while we unlocked the mutex. */ | |
3873 | static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev) | |
e4d6b795 MB |
3874 | { |
3875 | struct b43_wl *wl = dev->wl; | |
36dbd954 | 3876 | struct b43_wldev *orig_dev; |
e4d6b795 | 3877 | |
36dbd954 MB |
3878 | redo: |
3879 | if (!dev || b43_status(dev) < B43_STAT_STARTED) | |
3880 | return dev; | |
a19d12d7 | 3881 | |
f5d40eed | 3882 | /* Cancel work. Unlock to avoid deadlocks. */ |
36dbd954 MB |
3883 | mutex_unlock(&wl->mutex); |
3884 | cancel_delayed_work_sync(&dev->periodic_work); | |
f5d40eed | 3885 | cancel_work_sync(&wl->tx_work); |
36dbd954 MB |
3886 | mutex_lock(&wl->mutex); |
3887 | dev = wl->current_dev; | |
3888 | if (!dev || b43_status(dev) < B43_STAT_STARTED) { | |
3889 | /* Whoops, aliens ate up the device while we were unlocked. */ | |
3890 | return dev; | |
3891 | } | |
a19d12d7 | 3892 | |
36dbd954 | 3893 | /* Disable interrupts on the device. */ |
e4d6b795 | 3894 | b43_set_status(dev, B43_STAT_INITIALIZED); |
3dbba8e2 | 3895 | if (dev->dev->bus->bustype == SSB_BUSTYPE_SDIO) { |
36dbd954 MB |
3896 | /* wl->mutex is locked. That is enough. */ |
3897 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0); | |
3898 | b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */ | |
3899 | } else { | |
3900 | spin_lock_irq(&wl->hardirq_lock); | |
3901 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0); | |
3902 | b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */ | |
3903 | spin_unlock_irq(&wl->hardirq_lock); | |
3904 | } | |
176e9f6a | 3905 | /* Synchronize and free the interrupt handlers. Unlock to avoid deadlocks. */ |
36dbd954 | 3906 | orig_dev = dev; |
e4d6b795 | 3907 | mutex_unlock(&wl->mutex); |
176e9f6a MB |
3908 | if (dev->dev->bus->bustype == SSB_BUSTYPE_SDIO) { |
3909 | b43_sdio_free_irq(dev); | |
3910 | } else { | |
3911 | synchronize_irq(dev->dev->irq); | |
3912 | free_irq(dev->dev->irq, dev); | |
3913 | } | |
e4d6b795 | 3914 | mutex_lock(&wl->mutex); |
36dbd954 MB |
3915 | dev = wl->current_dev; |
3916 | if (!dev) | |
3917 | return dev; | |
3918 | if (dev != orig_dev) { | |
3919 | if (b43_status(dev) >= B43_STAT_STARTED) | |
3920 | goto redo; | |
3921 | return dev; | |
3922 | } | |
3923 | B43_WARN_ON(b43_read32(dev, B43_MMIO_GEN_IRQ_MASK)); | |
e4d6b795 | 3924 | |
f5d40eed MB |
3925 | /* Drain the TX queue */ |
3926 | while (skb_queue_len(&wl->tx_queue)) | |
3927 | dev_kfree_skb(skb_dequeue(&wl->tx_queue)); | |
3928 | ||
e4d6b795 | 3929 | b43_mac_suspend(dev); |
a78b3bb2 | 3930 | b43_leds_exit(dev); |
e4d6b795 | 3931 | b43dbg(wl, "Wireless interface stopped\n"); |
36dbd954 MB |
3932 | |
3933 | return dev; | |
e4d6b795 MB |
3934 | } |
3935 | ||
3936 | /* Locking: wl->mutex */ | |
3937 | static int b43_wireless_core_start(struct b43_wldev *dev) | |
3938 | { | |
3939 | int err; | |
3940 | ||
3941 | B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED); | |
3942 | ||
3943 | drain_txstatus_queue(dev); | |
3dbba8e2 AH |
3944 | if (dev->dev->bus->bustype == SSB_BUSTYPE_SDIO) { |
3945 | err = b43_sdio_request_irq(dev, b43_sdio_interrupt_handler); | |
3946 | if (err) { | |
3947 | b43err(dev->wl, "Cannot request SDIO IRQ\n"); | |
3948 | goto out; | |
3949 | } | |
3950 | } else { | |
3951 | err = request_threaded_irq(dev->dev->irq, b43_interrupt_handler, | |
3952 | b43_interrupt_thread_handler, | |
3953 | IRQF_SHARED, KBUILD_MODNAME, dev); | |
3954 | if (err) { | |
3955 | b43err(dev->wl, "Cannot request IRQ-%d\n", dev->dev->irq); | |
3956 | goto out; | |
3957 | } | |
e4d6b795 MB |
3958 | } |
3959 | ||
3960 | /* We are ready to run. */ | |
3961 | b43_set_status(dev, B43_STAT_STARTED); | |
3962 | ||
3963 | /* Start data flow (TX/RX). */ | |
3964 | b43_mac_enable(dev); | |
13790728 | 3965 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); |
e4d6b795 MB |
3966 | |
3967 | /* Start maintainance work */ | |
3968 | b43_periodic_tasks_setup(dev); | |
3969 | ||
a78b3bb2 MB |
3970 | b43_leds_init(dev); |
3971 | ||
e4d6b795 | 3972 | b43dbg(dev->wl, "Wireless interface started\n"); |
a78b3bb2 | 3973 | out: |
e4d6b795 MB |
3974 | return err; |
3975 | } | |
3976 | ||
3977 | /* Get PHY and RADIO versioning numbers */ | |
3978 | static int b43_phy_versioning(struct b43_wldev *dev) | |
3979 | { | |
3980 | struct b43_phy *phy = &dev->phy; | |
3981 | u32 tmp; | |
3982 | u8 analog_type; | |
3983 | u8 phy_type; | |
3984 | u8 phy_rev; | |
3985 | u16 radio_manuf; | |
3986 | u16 radio_ver; | |
3987 | u16 radio_rev; | |
3988 | int unsupported = 0; | |
3989 | ||
3990 | /* Get PHY versioning */ | |
3991 | tmp = b43_read16(dev, B43_MMIO_PHY_VER); | |
3992 | analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT; | |
3993 | phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT; | |
3994 | phy_rev = (tmp & B43_PHYVER_VERSION); | |
3995 | switch (phy_type) { | |
3996 | case B43_PHYTYPE_A: | |
3997 | if (phy_rev >= 4) | |
3998 | unsupported = 1; | |
3999 | break; | |
4000 | case B43_PHYTYPE_B: | |
4001 | if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6 | |
4002 | && phy_rev != 7) | |
4003 | unsupported = 1; | |
4004 | break; | |
4005 | case B43_PHYTYPE_G: | |
013978b6 | 4006 | if (phy_rev > 9) |
e4d6b795 MB |
4007 | unsupported = 1; |
4008 | break; | |
d5c71e46 MB |
4009 | #ifdef CONFIG_B43_NPHY |
4010 | case B43_PHYTYPE_N: | |
bb519bee | 4011 | if (phy_rev > 4) |
d5c71e46 MB |
4012 | unsupported = 1; |
4013 | break; | |
6b1c7c67 MB |
4014 | #endif |
4015 | #ifdef CONFIG_B43_PHY_LP | |
4016 | case B43_PHYTYPE_LP: | |
9d86a2d5 | 4017 | if (phy_rev > 2) |
6b1c7c67 MB |
4018 | unsupported = 1; |
4019 | break; | |
d5c71e46 | 4020 | #endif |
e4d6b795 MB |
4021 | default: |
4022 | unsupported = 1; | |
4023 | }; | |
4024 | if (unsupported) { | |
4025 | b43err(dev->wl, "FOUND UNSUPPORTED PHY " | |
4026 | "(Analog %u, Type %u, Revision %u)\n", | |
4027 | analog_type, phy_type, phy_rev); | |
4028 | return -EOPNOTSUPP; | |
4029 | } | |
4030 | b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n", | |
4031 | analog_type, phy_type, phy_rev); | |
4032 | ||
4033 | /* Get RADIO versioning */ | |
4034 | if (dev->dev->bus->chip_id == 0x4317) { | |
4035 | if (dev->dev->bus->chip_rev == 0) | |
4036 | tmp = 0x3205017F; | |
4037 | else if (dev->dev->bus->chip_rev == 1) | |
4038 | tmp = 0x4205017F; | |
4039 | else | |
4040 | tmp = 0x5205017F; | |
4041 | } else { | |
4042 | b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID); | |
243dcfcc | 4043 | tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW); |
e4d6b795 | 4044 | b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID); |
243dcfcc | 4045 | tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH) << 16; |
e4d6b795 MB |
4046 | } |
4047 | radio_manuf = (tmp & 0x00000FFF); | |
4048 | radio_ver = (tmp & 0x0FFFF000) >> 12; | |
4049 | radio_rev = (tmp & 0xF0000000) >> 28; | |
96c755a3 MB |
4050 | if (radio_manuf != 0x17F /* Broadcom */) |
4051 | unsupported = 1; | |
e4d6b795 MB |
4052 | switch (phy_type) { |
4053 | case B43_PHYTYPE_A: | |
4054 | if (radio_ver != 0x2060) | |
4055 | unsupported = 1; | |
4056 | if (radio_rev != 1) | |
4057 | unsupported = 1; | |
4058 | if (radio_manuf != 0x17F) | |
4059 | unsupported = 1; | |
4060 | break; | |
4061 | case B43_PHYTYPE_B: | |
4062 | if ((radio_ver & 0xFFF0) != 0x2050) | |
4063 | unsupported = 1; | |
4064 | break; | |
4065 | case B43_PHYTYPE_G: | |
4066 | if (radio_ver != 0x2050) | |
4067 | unsupported = 1; | |
4068 | break; | |
96c755a3 | 4069 | case B43_PHYTYPE_N: |
bb519bee | 4070 | if (radio_ver != 0x2055 && radio_ver != 0x2056) |
96c755a3 MB |
4071 | unsupported = 1; |
4072 | break; | |
6b1c7c67 | 4073 | case B43_PHYTYPE_LP: |
9d86a2d5 | 4074 | if (radio_ver != 0x2062 && radio_ver != 0x2063) |
6b1c7c67 MB |
4075 | unsupported = 1; |
4076 | break; | |
e4d6b795 MB |
4077 | default: |
4078 | B43_WARN_ON(1); | |
4079 | } | |
4080 | if (unsupported) { | |
4081 | b43err(dev->wl, "FOUND UNSUPPORTED RADIO " | |
4082 | "(Manuf 0x%X, Version 0x%X, Revision %u)\n", | |
4083 | radio_manuf, radio_ver, radio_rev); | |
4084 | return -EOPNOTSUPP; | |
4085 | } | |
4086 | b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n", | |
4087 | radio_manuf, radio_ver, radio_rev); | |
4088 | ||
4089 | phy->radio_manuf = radio_manuf; | |
4090 | phy->radio_ver = radio_ver; | |
4091 | phy->radio_rev = radio_rev; | |
4092 | ||
4093 | phy->analog = analog_type; | |
4094 | phy->type = phy_type; | |
4095 | phy->rev = phy_rev; | |
4096 | ||
4097 | return 0; | |
4098 | } | |
4099 | ||
4100 | static void setup_struct_phy_for_init(struct b43_wldev *dev, | |
4101 | struct b43_phy *phy) | |
4102 | { | |
e4d6b795 | 4103 | phy->hardware_power_control = !!modparam_hwpctl; |
18c8adeb | 4104 | phy->next_txpwr_check_time = jiffies; |
8ed7fc48 MB |
4105 | /* PHY TX errors counter. */ |
4106 | atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT); | |
591f3dc2 MB |
4107 | |
4108 | #if B43_DEBUG | |
4109 | phy->phy_locked = 0; | |
4110 | phy->radio_locked = 0; | |
4111 | #endif | |
e4d6b795 MB |
4112 | } |
4113 | ||
4114 | static void setup_struct_wldev_for_init(struct b43_wldev *dev) | |
4115 | { | |
aa6c7ae2 MB |
4116 | dev->dfq_valid = 0; |
4117 | ||
6a724d68 MB |
4118 | /* Assume the radio is enabled. If it's not enabled, the state will |
4119 | * immediately get fixed on the first periodic work run. */ | |
4120 | dev->radio_hw_enable = 1; | |
e4d6b795 MB |
4121 | |
4122 | /* Stats */ | |
4123 | memset(&dev->stats, 0, sizeof(dev->stats)); | |
4124 | ||
4125 | setup_struct_phy_for_init(dev, &dev->phy); | |
4126 | ||
4127 | /* IRQ related flags */ | |
4128 | dev->irq_reason = 0; | |
4129 | memset(dev->dma_reason, 0, sizeof(dev->dma_reason)); | |
13790728 | 4130 | dev->irq_mask = B43_IRQ_MASKTEMPLATE; |
3e3ccb3d | 4131 | if (b43_modparam_verbose < B43_VERBOSITY_DEBUG) |
13790728 | 4132 | dev->irq_mask &= ~B43_IRQ_PHY_TXERR; |
e4d6b795 MB |
4133 | |
4134 | dev->mac_suspended = 1; | |
4135 | ||
4136 | /* Noise calculation context */ | |
4137 | memset(&dev->noisecalc, 0, sizeof(dev->noisecalc)); | |
4138 | } | |
4139 | ||
4140 | static void b43_bluetooth_coext_enable(struct b43_wldev *dev) | |
4141 | { | |
4142 | struct ssb_sprom *sprom = &dev->dev->bus->sprom; | |
a259d6a4 | 4143 | u64 hf; |
e4d6b795 | 4144 | |
1855ba78 MB |
4145 | if (!modparam_btcoex) |
4146 | return; | |
95de2841 | 4147 | if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST)) |
e4d6b795 MB |
4148 | return; |
4149 | if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode) | |
4150 | return; | |
4151 | ||
4152 | hf = b43_hf_read(dev); | |
95de2841 | 4153 | if (sprom->boardflags_lo & B43_BFL_BTCMOD) |
e4d6b795 MB |
4154 | hf |= B43_HF_BTCOEXALT; |
4155 | else | |
4156 | hf |= B43_HF_BTCOEX; | |
4157 | b43_hf_write(dev, hf); | |
e4d6b795 MB |
4158 | } |
4159 | ||
4160 | static void b43_bluetooth_coext_disable(struct b43_wldev *dev) | |
1855ba78 MB |
4161 | { |
4162 | if (!modparam_btcoex) | |
4163 | return; | |
4164 | //TODO | |
e4d6b795 MB |
4165 | } |
4166 | ||
4167 | static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev) | |
4168 | { | |
4169 | #ifdef CONFIG_SSB_DRIVER_PCICORE | |
4170 | struct ssb_bus *bus = dev->dev->bus; | |
4171 | u32 tmp; | |
4172 | ||
4173 | if (bus->pcicore.dev && | |
4174 | bus->pcicore.dev->id.coreid == SSB_DEV_PCI && | |
4175 | bus->pcicore.dev->id.revision <= 5) { | |
4176 | /* IMCFGLO timeouts workaround. */ | |
4177 | tmp = ssb_read32(dev->dev, SSB_IMCFGLO); | |
e4d6b795 MB |
4178 | switch (bus->bustype) { |
4179 | case SSB_BUSTYPE_PCI: | |
4180 | case SSB_BUSTYPE_PCMCIA: | |
98a1e2a9 MB |
4181 | tmp &= ~SSB_IMCFGLO_REQTO; |
4182 | tmp &= ~SSB_IMCFGLO_SERTO; | |
e4d6b795 MB |
4183 | tmp |= 0x32; |
4184 | break; | |
4185 | case SSB_BUSTYPE_SSB: | |
98a1e2a9 MB |
4186 | tmp &= ~SSB_IMCFGLO_REQTO; |
4187 | tmp &= ~SSB_IMCFGLO_SERTO; | |
e4d6b795 MB |
4188 | tmp |= 0x53; |
4189 | break; | |
98a1e2a9 MB |
4190 | default: |
4191 | break; | |
e4d6b795 MB |
4192 | } |
4193 | ssb_write32(dev->dev, SSB_IMCFGLO, tmp); | |
4194 | } | |
4195 | #endif /* CONFIG_SSB_DRIVER_PCICORE */ | |
4196 | } | |
4197 | ||
d59f720d MB |
4198 | static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle) |
4199 | { | |
4200 | u16 pu_delay; | |
4201 | ||
4202 | /* The time value is in microseconds. */ | |
4203 | if (dev->phy.type == B43_PHYTYPE_A) | |
4204 | pu_delay = 3700; | |
4205 | else | |
4206 | pu_delay = 1050; | |
05c914fe | 4207 | if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC) || idle) |
d59f720d MB |
4208 | pu_delay = 500; |
4209 | if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8)) | |
4210 | pu_delay = max(pu_delay, (u16)2400); | |
4211 | ||
4212 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay); | |
4213 | } | |
4214 | ||
4215 | /* Set the TSF CFP pre-TargetBeaconTransmissionTime. */ | |
4216 | static void b43_set_pretbtt(struct b43_wldev *dev) | |
4217 | { | |
4218 | u16 pretbtt; | |
4219 | ||
4220 | /* The time value is in microseconds. */ | |
05c914fe | 4221 | if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) { |
d59f720d MB |
4222 | pretbtt = 2; |
4223 | } else { | |
4224 | if (dev->phy.type == B43_PHYTYPE_A) | |
4225 | pretbtt = 120; | |
4226 | else | |
4227 | pretbtt = 250; | |
4228 | } | |
4229 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt); | |
4230 | b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt); | |
4231 | } | |
4232 | ||
e4d6b795 MB |
4233 | /* Shutdown a wireless core */ |
4234 | /* Locking: wl->mutex */ | |
4235 | static void b43_wireless_core_exit(struct b43_wldev *dev) | |
4236 | { | |
1f7d87b0 | 4237 | u32 macctl; |
e4d6b795 | 4238 | |
36dbd954 MB |
4239 | B43_WARN_ON(dev && b43_status(dev) > B43_STAT_INITIALIZED); |
4240 | if (!dev || b43_status(dev) != B43_STAT_INITIALIZED) | |
e4d6b795 MB |
4241 | return; |
4242 | b43_set_status(dev, B43_STAT_UNINIT); | |
4243 | ||
1f7d87b0 MB |
4244 | /* Stop the microcode PSM. */ |
4245 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
4246 | macctl &= ~B43_MACCTL_PSM_RUN; | |
4247 | macctl |= B43_MACCTL_PSM_JMP0; | |
4248 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
4249 | ||
e4d6b795 | 4250 | b43_dma_free(dev); |
5100d5ac | 4251 | b43_pio_free(dev); |
e4d6b795 | 4252 | b43_chip_exit(dev); |
cb24f57f | 4253 | dev->phy.ops->switch_analog(dev, 0); |
e66fee6a MB |
4254 | if (dev->wl->current_beacon) { |
4255 | dev_kfree_skb_any(dev->wl->current_beacon); | |
4256 | dev->wl->current_beacon = NULL; | |
4257 | } | |
4258 | ||
e4d6b795 MB |
4259 | ssb_device_disable(dev->dev, 0); |
4260 | ssb_bus_may_powerdown(dev->dev->bus); | |
4261 | } | |
4262 | ||
4263 | /* Initialize a wireless core */ | |
4264 | static int b43_wireless_core_init(struct b43_wldev *dev) | |
4265 | { | |
e4d6b795 MB |
4266 | struct ssb_bus *bus = dev->dev->bus; |
4267 | struct ssb_sprom *sprom = &bus->sprom; | |
4268 | struct b43_phy *phy = &dev->phy; | |
4269 | int err; | |
a259d6a4 MB |
4270 | u64 hf; |
4271 | u32 tmp; | |
e4d6b795 MB |
4272 | |
4273 | B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT); | |
4274 | ||
4275 | err = ssb_bus_powerup(bus, 0); | |
4276 | if (err) | |
4277 | goto out; | |
4278 | if (!ssb_device_is_enabled(dev->dev)) { | |
4279 | tmp = phy->gmode ? B43_TMSLOW_GMODE : 0; | |
4280 | b43_wireless_core_reset(dev, tmp); | |
4281 | } | |
4282 | ||
fb11137a | 4283 | /* Reset all data structures. */ |
e4d6b795 | 4284 | setup_struct_wldev_for_init(dev); |
fb11137a | 4285 | phy->ops->prepare_structs(dev); |
e4d6b795 MB |
4286 | |
4287 | /* Enable IRQ routing to this device. */ | |
4288 | ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev); | |
4289 | ||
4290 | b43_imcfglo_timeouts_workaround(dev); | |
4291 | b43_bluetooth_coext_disable(dev); | |
fb11137a MB |
4292 | if (phy->ops->prepare_hardware) { |
4293 | err = phy->ops->prepare_hardware(dev); | |
ef1a628d | 4294 | if (err) |
fb11137a | 4295 | goto err_busdown; |
ef1a628d | 4296 | } |
e4d6b795 MB |
4297 | err = b43_chip_init(dev); |
4298 | if (err) | |
fb11137a | 4299 | goto err_busdown; |
e4d6b795 MB |
4300 | b43_shm_write16(dev, B43_SHM_SHARED, |
4301 | B43_SHM_SH_WLCOREREV, dev->dev->id.revision); | |
4302 | hf = b43_hf_read(dev); | |
4303 | if (phy->type == B43_PHYTYPE_G) { | |
4304 | hf |= B43_HF_SYMW; | |
4305 | if (phy->rev == 1) | |
4306 | hf |= B43_HF_GDCW; | |
95de2841 | 4307 | if (sprom->boardflags_lo & B43_BFL_PACTRL) |
e4d6b795 | 4308 | hf |= B43_HF_OFDMPABOOST; |
969d15cf MB |
4309 | } |
4310 | if (phy->radio_ver == 0x2050) { | |
4311 | if (phy->radio_rev == 6) | |
4312 | hf |= B43_HF_4318TSSI; | |
4313 | if (phy->radio_rev < 6) | |
4314 | hf |= B43_HF_VCORECALC; | |
e4d6b795 | 4315 | } |
1cc8f476 MB |
4316 | if (sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW) |
4317 | hf |= B43_HF_DSCRQ; /* Disable slowclock requests from ucode. */ | |
1a77733c | 4318 | #ifdef CONFIG_SSB_DRIVER_PCICORE |
8821905c MB |
4319 | if ((bus->bustype == SSB_BUSTYPE_PCI) && |
4320 | (bus->pcicore.dev->id.revision <= 10)) | |
4321 | hf |= B43_HF_PCISCW; /* PCI slow clock workaround. */ | |
1a77733c | 4322 | #endif |
25d3ef59 | 4323 | hf &= ~B43_HF_SKCFPUP; |
e4d6b795 MB |
4324 | b43_hf_write(dev, hf); |
4325 | ||
74cfdba7 MB |
4326 | b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT, |
4327 | B43_DEFAULT_LONG_RETRY_LIMIT); | |
e4d6b795 MB |
4328 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3); |
4329 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2); | |
4330 | ||
4331 | /* Disable sending probe responses from firmware. | |
4332 | * Setting the MaxTime to one usec will always trigger | |
4333 | * a timeout, so we never send any probe resp. | |
4334 | * A timeout of zero is infinite. */ | |
4335 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1); | |
4336 | ||
4337 | b43_rate_memory_init(dev); | |
5042c507 | 4338 | b43_set_phytxctl_defaults(dev); |
e4d6b795 MB |
4339 | |
4340 | /* Minimum Contention Window */ | |
4341 | if (phy->type == B43_PHYTYPE_B) { | |
4342 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F); | |
4343 | } else { | |
4344 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF); | |
4345 | } | |
4346 | /* Maximum Contention Window */ | |
4347 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF); | |
4348 | ||
3dbba8e2 AH |
4349 | if ((dev->dev->bus->bustype == SSB_BUSTYPE_PCMCIA) || |
4350 | (dev->dev->bus->bustype == SSB_BUSTYPE_SDIO) || | |
4351 | B43_FORCE_PIO) { | |
5100d5ac MB |
4352 | dev->__using_pio_transfers = 1; |
4353 | err = b43_pio_init(dev); | |
4354 | } else { | |
4355 | dev->__using_pio_transfers = 0; | |
4356 | err = b43_dma_init(dev); | |
4357 | } | |
e4d6b795 MB |
4358 | if (err) |
4359 | goto err_chip_exit; | |
03b29773 | 4360 | b43_qos_init(dev); |
d59f720d | 4361 | b43_set_synth_pu_delay(dev, 1); |
e4d6b795 MB |
4362 | b43_bluetooth_coext_enable(dev); |
4363 | ||
1cc8f476 | 4364 | ssb_bus_powerup(bus, !(sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW)); |
4150c572 | 4365 | b43_upload_card_macaddress(dev); |
e4d6b795 | 4366 | b43_security_init(dev); |
e4d6b795 | 4367 | |
5ab9549a MB |
4368 | ieee80211_wake_queues(dev->wl->hw); |
4369 | ||
e4d6b795 MB |
4370 | b43_set_status(dev, B43_STAT_INITIALIZED); |
4371 | ||
1a8d1227 | 4372 | out: |
e4d6b795 MB |
4373 | return err; |
4374 | ||
ef1a628d | 4375 | err_chip_exit: |
e4d6b795 | 4376 | b43_chip_exit(dev); |
ef1a628d | 4377 | err_busdown: |
e4d6b795 MB |
4378 | ssb_bus_may_powerdown(bus); |
4379 | B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT); | |
4380 | return err; | |
4381 | } | |
4382 | ||
40faacc4 MB |
4383 | static int b43_op_add_interface(struct ieee80211_hw *hw, |
4384 | struct ieee80211_if_init_conf *conf) | |
e4d6b795 MB |
4385 | { |
4386 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4387 | struct b43_wldev *dev; | |
e4d6b795 | 4388 | int err = -EOPNOTSUPP; |
4150c572 JB |
4389 | |
4390 | /* TODO: allow WDS/AP devices to coexist */ | |
4391 | ||
05c914fe JB |
4392 | if (conf->type != NL80211_IFTYPE_AP && |
4393 | conf->type != NL80211_IFTYPE_MESH_POINT && | |
4394 | conf->type != NL80211_IFTYPE_STATION && | |
4395 | conf->type != NL80211_IFTYPE_WDS && | |
4396 | conf->type != NL80211_IFTYPE_ADHOC) | |
4150c572 | 4397 | return -EOPNOTSUPP; |
e4d6b795 MB |
4398 | |
4399 | mutex_lock(&wl->mutex); | |
4150c572 | 4400 | if (wl->operating) |
e4d6b795 MB |
4401 | goto out_mutex_unlock; |
4402 | ||
4403 | b43dbg(wl, "Adding Interface type %d\n", conf->type); | |
4404 | ||
4405 | dev = wl->current_dev; | |
4150c572 | 4406 | wl->operating = 1; |
32bfd35d | 4407 | wl->vif = conf->vif; |
4150c572 JB |
4408 | wl->if_type = conf->type; |
4409 | memcpy(wl->mac_addr, conf->mac_addr, ETH_ALEN); | |
4410 | ||
4150c572 | 4411 | b43_adjust_opmode(dev); |
d59f720d MB |
4412 | b43_set_pretbtt(dev); |
4413 | b43_set_synth_pu_delay(dev, 0); | |
4150c572 | 4414 | b43_upload_card_macaddress(dev); |
4150c572 JB |
4415 | |
4416 | err = 0; | |
4417 | out_mutex_unlock: | |
4418 | mutex_unlock(&wl->mutex); | |
4419 | ||
4420 | return err; | |
4421 | } | |
4422 | ||
40faacc4 MB |
4423 | static void b43_op_remove_interface(struct ieee80211_hw *hw, |
4424 | struct ieee80211_if_init_conf *conf) | |
4150c572 JB |
4425 | { |
4426 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4427 | struct b43_wldev *dev = wl->current_dev; | |
4150c572 JB |
4428 | |
4429 | b43dbg(wl, "Removing Interface type %d\n", conf->type); | |
4430 | ||
4431 | mutex_lock(&wl->mutex); | |
4432 | ||
4433 | B43_WARN_ON(!wl->operating); | |
32bfd35d JB |
4434 | B43_WARN_ON(wl->vif != conf->vif); |
4435 | wl->vif = NULL; | |
4150c572 JB |
4436 | |
4437 | wl->operating = 0; | |
4438 | ||
4150c572 JB |
4439 | b43_adjust_opmode(dev); |
4440 | memset(wl->mac_addr, 0, ETH_ALEN); | |
4441 | b43_upload_card_macaddress(dev); | |
4150c572 JB |
4442 | |
4443 | mutex_unlock(&wl->mutex); | |
4444 | } | |
4445 | ||
40faacc4 | 4446 | static int b43_op_start(struct ieee80211_hw *hw) |
4150c572 JB |
4447 | { |
4448 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4449 | struct b43_wldev *dev = wl->current_dev; | |
4450 | int did_init = 0; | |
923403b8 | 4451 | int err = 0; |
4150c572 | 4452 | |
7be1bb6b MB |
4453 | /* Kill all old instance specific information to make sure |
4454 | * the card won't use it in the short timeframe between start | |
4455 | * and mac80211 reconfiguring it. */ | |
4456 | memset(wl->bssid, 0, ETH_ALEN); | |
4457 | memset(wl->mac_addr, 0, ETH_ALEN); | |
4458 | wl->filter_flags = 0; | |
4459 | wl->radiotap_enabled = 0; | |
e6f5b934 | 4460 | b43_qos_clear(wl); |
6b4bec01 MB |
4461 | wl->beacon0_uploaded = 0; |
4462 | wl->beacon1_uploaded = 0; | |
4463 | wl->beacon_templates_virgin = 1; | |
fd4973c5 | 4464 | wl->radio_enabled = 1; |
7be1bb6b | 4465 | |
4150c572 JB |
4466 | mutex_lock(&wl->mutex); |
4467 | ||
e4d6b795 MB |
4468 | if (b43_status(dev) < B43_STAT_INITIALIZED) { |
4469 | err = b43_wireless_core_init(dev); | |
f41f3f37 | 4470 | if (err) |
e4d6b795 MB |
4471 | goto out_mutex_unlock; |
4472 | did_init = 1; | |
4473 | } | |
4150c572 | 4474 | |
e4d6b795 MB |
4475 | if (b43_status(dev) < B43_STAT_STARTED) { |
4476 | err = b43_wireless_core_start(dev); | |
4477 | if (err) { | |
4478 | if (did_init) | |
4479 | b43_wireless_core_exit(dev); | |
4480 | goto out_mutex_unlock; | |
4481 | } | |
4482 | } | |
4483 | ||
f41f3f37 JB |
4484 | /* XXX: only do if device doesn't support rfkill irq */ |
4485 | wiphy_rfkill_start_polling(hw->wiphy); | |
4486 | ||
4150c572 | 4487 | out_mutex_unlock: |
e4d6b795 MB |
4488 | mutex_unlock(&wl->mutex); |
4489 | ||
4490 | return err; | |
4491 | } | |
4492 | ||
40faacc4 | 4493 | static void b43_op_stop(struct ieee80211_hw *hw) |
e4d6b795 MB |
4494 | { |
4495 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4150c572 | 4496 | struct b43_wldev *dev = wl->current_dev; |
e4d6b795 | 4497 | |
a82d9922 | 4498 | cancel_work_sync(&(wl->beacon_update_trigger)); |
1a8d1227 | 4499 | |
e4d6b795 | 4500 | mutex_lock(&wl->mutex); |
36dbd954 MB |
4501 | if (b43_status(dev) >= B43_STAT_STARTED) { |
4502 | dev = b43_wireless_core_stop(dev); | |
4503 | if (!dev) | |
4504 | goto out_unlock; | |
4505 | } | |
4150c572 | 4506 | b43_wireless_core_exit(dev); |
fd4973c5 | 4507 | wl->radio_enabled = 0; |
36dbd954 MB |
4508 | |
4509 | out_unlock: | |
e4d6b795 | 4510 | mutex_unlock(&wl->mutex); |
18c8adeb MB |
4511 | |
4512 | cancel_work_sync(&(wl->txpower_adjust_work)); | |
e4d6b795 MB |
4513 | } |
4514 | ||
17741cdc JB |
4515 | static int b43_op_beacon_set_tim(struct ieee80211_hw *hw, |
4516 | struct ieee80211_sta *sta, bool set) | |
e66fee6a MB |
4517 | { |
4518 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4519 | ||
36dbd954 | 4520 | mutex_lock(&wl->mutex); |
9d139c81 | 4521 | b43_update_templates(wl); |
36dbd954 | 4522 | mutex_unlock(&wl->mutex); |
e66fee6a MB |
4523 | |
4524 | return 0; | |
4525 | } | |
4526 | ||
38968d09 JB |
4527 | static void b43_op_sta_notify(struct ieee80211_hw *hw, |
4528 | struct ieee80211_vif *vif, | |
4529 | enum sta_notify_cmd notify_cmd, | |
17741cdc | 4530 | struct ieee80211_sta *sta) |
38968d09 JB |
4531 | { |
4532 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4533 | ||
4534 | B43_WARN_ON(!vif || wl->vif != vif); | |
4535 | } | |
4536 | ||
25d3ef59 MB |
4537 | static void b43_op_sw_scan_start_notifier(struct ieee80211_hw *hw) |
4538 | { | |
4539 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4540 | struct b43_wldev *dev; | |
4541 | ||
4542 | mutex_lock(&wl->mutex); | |
4543 | dev = wl->current_dev; | |
4544 | if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) { | |
4545 | /* Disable CFP update during scan on other channels. */ | |
4546 | b43_hf_write(dev, b43_hf_read(dev) | B43_HF_SKCFPUP); | |
4547 | } | |
4548 | mutex_unlock(&wl->mutex); | |
4549 | } | |
4550 | ||
4551 | static void b43_op_sw_scan_complete_notifier(struct ieee80211_hw *hw) | |
4552 | { | |
4553 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4554 | struct b43_wldev *dev; | |
4555 | ||
4556 | mutex_lock(&wl->mutex); | |
4557 | dev = wl->current_dev; | |
4558 | if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) { | |
4559 | /* Re-enable CFP update. */ | |
4560 | b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_SKCFPUP); | |
4561 | } | |
4562 | mutex_unlock(&wl->mutex); | |
4563 | } | |
4564 | ||
e4d6b795 | 4565 | static const struct ieee80211_ops b43_hw_ops = { |
40faacc4 MB |
4566 | .tx = b43_op_tx, |
4567 | .conf_tx = b43_op_conf_tx, | |
4568 | .add_interface = b43_op_add_interface, | |
4569 | .remove_interface = b43_op_remove_interface, | |
4570 | .config = b43_op_config, | |
c7ab5ef9 | 4571 | .bss_info_changed = b43_op_bss_info_changed, |
40faacc4 MB |
4572 | .configure_filter = b43_op_configure_filter, |
4573 | .set_key = b43_op_set_key, | |
035d0243 | 4574 | .update_tkip_key = b43_op_update_tkip_key, |
40faacc4 MB |
4575 | .get_stats = b43_op_get_stats, |
4576 | .get_tx_stats = b43_op_get_tx_stats, | |
08e87a83 AF |
4577 | .get_tsf = b43_op_get_tsf, |
4578 | .set_tsf = b43_op_set_tsf, | |
40faacc4 MB |
4579 | .start = b43_op_start, |
4580 | .stop = b43_op_stop, | |
e66fee6a | 4581 | .set_tim = b43_op_beacon_set_tim, |
38968d09 | 4582 | .sta_notify = b43_op_sta_notify, |
25d3ef59 MB |
4583 | .sw_scan_start = b43_op_sw_scan_start_notifier, |
4584 | .sw_scan_complete = b43_op_sw_scan_complete_notifier, | |
f41f3f37 | 4585 | .rfkill_poll = b43_rfkill_poll, |
e4d6b795 MB |
4586 | }; |
4587 | ||
4588 | /* Hard-reset the chip. Do not call this directly. | |
4589 | * Use b43_controller_restart() | |
4590 | */ | |
4591 | static void b43_chip_reset(struct work_struct *work) | |
4592 | { | |
4593 | struct b43_wldev *dev = | |
4594 | container_of(work, struct b43_wldev, restart_work); | |
4595 | struct b43_wl *wl = dev->wl; | |
4596 | int err = 0; | |
4597 | int prev_status; | |
4598 | ||
4599 | mutex_lock(&wl->mutex); | |
4600 | ||
4601 | prev_status = b43_status(dev); | |
4602 | /* Bring the device down... */ | |
36dbd954 MB |
4603 | if (prev_status >= B43_STAT_STARTED) { |
4604 | dev = b43_wireless_core_stop(dev); | |
4605 | if (!dev) { | |
4606 | err = -ENODEV; | |
4607 | goto out; | |
4608 | } | |
4609 | } | |
e4d6b795 MB |
4610 | if (prev_status >= B43_STAT_INITIALIZED) |
4611 | b43_wireless_core_exit(dev); | |
4612 | ||
4613 | /* ...and up again. */ | |
4614 | if (prev_status >= B43_STAT_INITIALIZED) { | |
4615 | err = b43_wireless_core_init(dev); | |
4616 | if (err) | |
4617 | goto out; | |
4618 | } | |
4619 | if (prev_status >= B43_STAT_STARTED) { | |
4620 | err = b43_wireless_core_start(dev); | |
4621 | if (err) { | |
4622 | b43_wireless_core_exit(dev); | |
4623 | goto out; | |
4624 | } | |
4625 | } | |
3bf0a32e MB |
4626 | out: |
4627 | if (err) | |
4628 | wl->current_dev = NULL; /* Failed to init the dev. */ | |
e4d6b795 MB |
4629 | mutex_unlock(&wl->mutex); |
4630 | if (err) | |
4631 | b43err(wl, "Controller restart FAILED\n"); | |
4632 | else | |
4633 | b43info(wl, "Controller restarted\n"); | |
4634 | } | |
4635 | ||
bb1eeff1 | 4636 | static int b43_setup_bands(struct b43_wldev *dev, |
96c755a3 | 4637 | bool have_2ghz_phy, bool have_5ghz_phy) |
e4d6b795 MB |
4638 | { |
4639 | struct ieee80211_hw *hw = dev->wl->hw; | |
e4d6b795 | 4640 | |
bb1eeff1 MB |
4641 | if (have_2ghz_phy) |
4642 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz; | |
4643 | if (dev->phy.type == B43_PHYTYPE_N) { | |
4644 | if (have_5ghz_phy) | |
4645 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_nphy; | |
4646 | } else { | |
4647 | if (have_5ghz_phy) | |
4648 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy; | |
4649 | } | |
96c755a3 | 4650 | |
bb1eeff1 MB |
4651 | dev->phy.supports_2ghz = have_2ghz_phy; |
4652 | dev->phy.supports_5ghz = have_5ghz_phy; | |
e4d6b795 MB |
4653 | |
4654 | return 0; | |
4655 | } | |
4656 | ||
4657 | static void b43_wireless_core_detach(struct b43_wldev *dev) | |
4658 | { | |
4659 | /* We release firmware that late to not be required to re-request | |
4660 | * is all the time when we reinit the core. */ | |
4661 | b43_release_firmware(dev); | |
fb11137a | 4662 | b43_phy_free(dev); |
e4d6b795 MB |
4663 | } |
4664 | ||
4665 | static int b43_wireless_core_attach(struct b43_wldev *dev) | |
4666 | { | |
4667 | struct b43_wl *wl = dev->wl; | |
4668 | struct ssb_bus *bus = dev->dev->bus; | |
4669 | struct pci_dev *pdev = bus->host_pci; | |
4670 | int err; | |
96c755a3 | 4671 | bool have_2ghz_phy = 0, have_5ghz_phy = 0; |
e4d6b795 MB |
4672 | u32 tmp; |
4673 | ||
4674 | /* Do NOT do any device initialization here. | |
4675 | * Do it in wireless_core_init() instead. | |
4676 | * This function is for gathering basic information about the HW, only. | |
4677 | * Also some structs may be set up here. But most likely you want to have | |
4678 | * that in core_init(), too. | |
4679 | */ | |
4680 | ||
4681 | err = ssb_bus_powerup(bus, 0); | |
4682 | if (err) { | |
4683 | b43err(wl, "Bus powerup failed\n"); | |
4684 | goto out; | |
4685 | } | |
4686 | /* Get the PHY type. */ | |
4687 | if (dev->dev->id.revision >= 5) { | |
4688 | u32 tmshigh; | |
4689 | ||
4690 | tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH); | |
96c755a3 MB |
4691 | have_2ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY); |
4692 | have_5ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_5GHZ_PHY); | |
e4d6b795 | 4693 | } else |
96c755a3 | 4694 | B43_WARN_ON(1); |
e4d6b795 | 4695 | |
96c755a3 | 4696 | dev->phy.gmode = have_2ghz_phy; |
fd4973c5 | 4697 | dev->phy.radio_on = 1; |
e4d6b795 MB |
4698 | tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0; |
4699 | b43_wireless_core_reset(dev, tmp); | |
4700 | ||
4701 | err = b43_phy_versioning(dev); | |
4702 | if (err) | |
21954c36 | 4703 | goto err_powerdown; |
e4d6b795 MB |
4704 | /* Check if this device supports multiband. */ |
4705 | if (!pdev || | |
4706 | (pdev->device != 0x4312 && | |
4707 | pdev->device != 0x4319 && pdev->device != 0x4324)) { | |
4708 | /* No multiband support. */ | |
96c755a3 MB |
4709 | have_2ghz_phy = 0; |
4710 | have_5ghz_phy = 0; | |
e4d6b795 MB |
4711 | switch (dev->phy.type) { |
4712 | case B43_PHYTYPE_A: | |
96c755a3 | 4713 | have_5ghz_phy = 1; |
e4d6b795 | 4714 | break; |
9d86a2d5 | 4715 | case B43_PHYTYPE_LP: //FIXME not always! |
86b2892a | 4716 | #if 0 //FIXME enabling 5GHz causes a NULL pointer dereference |
9d86a2d5 | 4717 | have_5ghz_phy = 1; |
86b2892a | 4718 | #endif |
e4d6b795 | 4719 | case B43_PHYTYPE_G: |
96c755a3 MB |
4720 | case B43_PHYTYPE_N: |
4721 | have_2ghz_phy = 1; | |
e4d6b795 MB |
4722 | break; |
4723 | default: | |
4724 | B43_WARN_ON(1); | |
4725 | } | |
4726 | } | |
96c755a3 MB |
4727 | if (dev->phy.type == B43_PHYTYPE_A) { |
4728 | /* FIXME */ | |
4729 | b43err(wl, "IEEE 802.11a devices are unsupported\n"); | |
4730 | err = -EOPNOTSUPP; | |
4731 | goto err_powerdown; | |
4732 | } | |
2e35af14 MB |
4733 | if (1 /* disable A-PHY */) { |
4734 | /* FIXME: For now we disable the A-PHY on multi-PHY devices. */ | |
9d86a2d5 GS |
4735 | if (dev->phy.type != B43_PHYTYPE_N && |
4736 | dev->phy.type != B43_PHYTYPE_LP) { | |
2e35af14 MB |
4737 | have_2ghz_phy = 1; |
4738 | have_5ghz_phy = 0; | |
4739 | } | |
4740 | } | |
4741 | ||
fb11137a MB |
4742 | err = b43_phy_allocate(dev); |
4743 | if (err) | |
4744 | goto err_powerdown; | |
4745 | ||
96c755a3 | 4746 | dev->phy.gmode = have_2ghz_phy; |
e4d6b795 MB |
4747 | tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0; |
4748 | b43_wireless_core_reset(dev, tmp); | |
4749 | ||
4750 | err = b43_validate_chipaccess(dev); | |
4751 | if (err) | |
fb11137a | 4752 | goto err_phy_free; |
bb1eeff1 | 4753 | err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy); |
e4d6b795 | 4754 | if (err) |
fb11137a | 4755 | goto err_phy_free; |
e4d6b795 MB |
4756 | |
4757 | /* Now set some default "current_dev" */ | |
4758 | if (!wl->current_dev) | |
4759 | wl->current_dev = dev; | |
4760 | INIT_WORK(&dev->restart_work, b43_chip_reset); | |
4761 | ||
cb24f57f | 4762 | dev->phy.ops->switch_analog(dev, 0); |
e4d6b795 MB |
4763 | ssb_device_disable(dev->dev, 0); |
4764 | ssb_bus_may_powerdown(bus); | |
4765 | ||
4766 | out: | |
4767 | return err; | |
4768 | ||
fb11137a MB |
4769 | err_phy_free: |
4770 | b43_phy_free(dev); | |
e4d6b795 MB |
4771 | err_powerdown: |
4772 | ssb_bus_may_powerdown(bus); | |
4773 | return err; | |
4774 | } | |
4775 | ||
4776 | static void b43_one_core_detach(struct ssb_device *dev) | |
4777 | { | |
4778 | struct b43_wldev *wldev; | |
4779 | struct b43_wl *wl; | |
4780 | ||
3bf0a32e MB |
4781 | /* Do not cancel ieee80211-workqueue based work here. |
4782 | * See comment in b43_remove(). */ | |
4783 | ||
e4d6b795 MB |
4784 | wldev = ssb_get_drvdata(dev); |
4785 | wl = wldev->wl; | |
e4d6b795 MB |
4786 | b43_debugfs_remove_device(wldev); |
4787 | b43_wireless_core_detach(wldev); | |
4788 | list_del(&wldev->list); | |
4789 | wl->nr_devs--; | |
4790 | ssb_set_drvdata(dev, NULL); | |
4791 | kfree(wldev); | |
4792 | } | |
4793 | ||
4794 | static int b43_one_core_attach(struct ssb_device *dev, struct b43_wl *wl) | |
4795 | { | |
4796 | struct b43_wldev *wldev; | |
4797 | struct pci_dev *pdev; | |
4798 | int err = -ENOMEM; | |
4799 | ||
4800 | if (!list_empty(&wl->devlist)) { | |
4801 | /* We are not the first core on this chip. */ | |
4802 | pdev = dev->bus->host_pci; | |
4803 | /* Only special chips support more than one wireless | |
4804 | * core, although some of the other chips have more than | |
4805 | * one wireless core as well. Check for this and | |
4806 | * bail out early. | |
4807 | */ | |
4808 | if (!pdev || | |
4809 | ((pdev->device != 0x4321) && | |
4810 | (pdev->device != 0x4313) && (pdev->device != 0x431A))) { | |
4811 | b43dbg(wl, "Ignoring unconnected 802.11 core\n"); | |
4812 | return -ENODEV; | |
4813 | } | |
4814 | } | |
4815 | ||
4816 | wldev = kzalloc(sizeof(*wldev), GFP_KERNEL); | |
4817 | if (!wldev) | |
4818 | goto out; | |
4819 | ||
4820 | wldev->dev = dev; | |
4821 | wldev->wl = wl; | |
4822 | b43_set_status(wldev, B43_STAT_UNINIT); | |
4823 | wldev->bad_frames_preempt = modparam_bad_frames_preempt; | |
e4d6b795 MB |
4824 | INIT_LIST_HEAD(&wldev->list); |
4825 | ||
4826 | err = b43_wireless_core_attach(wldev); | |
4827 | if (err) | |
4828 | goto err_kfree_wldev; | |
4829 | ||
4830 | list_add(&wldev->list, &wl->devlist); | |
4831 | wl->nr_devs++; | |
4832 | ssb_set_drvdata(dev, wldev); | |
4833 | b43_debugfs_add_device(wldev); | |
4834 | ||
4835 | out: | |
4836 | return err; | |
4837 | ||
4838 | err_kfree_wldev: | |
4839 | kfree(wldev); | |
4840 | return err; | |
4841 | } | |
4842 | ||
9fc38458 MB |
4843 | #define IS_PDEV(pdev, _vendor, _device, _subvendor, _subdevice) ( \ |
4844 | (pdev->vendor == PCI_VENDOR_ID_##_vendor) && \ | |
4845 | (pdev->device == _device) && \ | |
4846 | (pdev->subsystem_vendor == PCI_VENDOR_ID_##_subvendor) && \ | |
4847 | (pdev->subsystem_device == _subdevice) ) | |
4848 | ||
e4d6b795 MB |
4849 | static void b43_sprom_fixup(struct ssb_bus *bus) |
4850 | { | |
1855ba78 MB |
4851 | struct pci_dev *pdev; |
4852 | ||
e4d6b795 MB |
4853 | /* boardflags workarounds */ |
4854 | if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL && | |
4855 | bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74) | |
95de2841 | 4856 | bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST; |
e4d6b795 MB |
4857 | if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE && |
4858 | bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40) | |
95de2841 | 4859 | bus->sprom.boardflags_lo |= B43_BFL_PACTRL; |
1855ba78 MB |
4860 | if (bus->bustype == SSB_BUSTYPE_PCI) { |
4861 | pdev = bus->host_pci; | |
9fc38458 | 4862 | if (IS_PDEV(pdev, BROADCOM, 0x4318, ASUSTEK, 0x100F) || |
430cd47f | 4863 | IS_PDEV(pdev, BROADCOM, 0x4320, DELL, 0x0003) || |
570bdfb1 | 4864 | IS_PDEV(pdev, BROADCOM, 0x4320, HP, 0x12f8) || |
9fc38458 | 4865 | IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0015) || |
a58d4522 | 4866 | IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0014) || |
3bb91bff LF |
4867 | IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0013) || |
4868 | IS_PDEV(pdev, BROADCOM, 0x4320, MOTOROLA, 0x7010)) | |
1855ba78 MB |
4869 | bus->sprom.boardflags_lo &= ~B43_BFL_BTCOEXIST; |
4870 | } | |
e4d6b795 MB |
4871 | } |
4872 | ||
4873 | static void b43_wireless_exit(struct ssb_device *dev, struct b43_wl *wl) | |
4874 | { | |
4875 | struct ieee80211_hw *hw = wl->hw; | |
4876 | ||
4877 | ssb_set_devtypedata(dev, NULL); | |
4878 | ieee80211_free_hw(hw); | |
4879 | } | |
4880 | ||
4881 | static int b43_wireless_init(struct ssb_device *dev) | |
4882 | { | |
4883 | struct ssb_sprom *sprom = &dev->bus->sprom; | |
4884 | struct ieee80211_hw *hw; | |
4885 | struct b43_wl *wl; | |
4886 | int err = -ENOMEM; | |
4887 | ||
4888 | b43_sprom_fixup(dev->bus); | |
4889 | ||
4890 | hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops); | |
4891 | if (!hw) { | |
4892 | b43err(NULL, "Could not allocate ieee80211 device\n"); | |
4893 | goto out; | |
4894 | } | |
403a3a13 | 4895 | wl = hw_to_b43_wl(hw); |
e4d6b795 MB |
4896 | |
4897 | /* fill hw info */ | |
605a0bd6 | 4898 | hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
566bfe5a BR |
4899 | IEEE80211_HW_SIGNAL_DBM | |
4900 | IEEE80211_HW_NOISE_DBM; | |
4901 | ||
f59ac048 LR |
4902 | hw->wiphy->interface_modes = |
4903 | BIT(NL80211_IFTYPE_AP) | | |
4904 | BIT(NL80211_IFTYPE_MESH_POINT) | | |
4905 | BIT(NL80211_IFTYPE_STATION) | | |
4906 | BIT(NL80211_IFTYPE_WDS) | | |
4907 | BIT(NL80211_IFTYPE_ADHOC); | |
4908 | ||
403a3a13 MB |
4909 | hw->queues = modparam_qos ? 4 : 1; |
4910 | wl->mac80211_initially_registered_queues = hw->queues; | |
e6a9854b | 4911 | hw->max_rates = 2; |
e4d6b795 | 4912 | SET_IEEE80211_DEV(hw, dev->dev); |
95de2841 LF |
4913 | if (is_valid_ether_addr(sprom->et1mac)) |
4914 | SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac); | |
e4d6b795 | 4915 | else |
95de2841 | 4916 | SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac); |
e4d6b795 | 4917 | |
403a3a13 | 4918 | /* Initialize struct b43_wl */ |
e4d6b795 | 4919 | wl->hw = hw; |
e4d6b795 | 4920 | mutex_init(&wl->mutex); |
36dbd954 | 4921 | spin_lock_init(&wl->hardirq_lock); |
e4d6b795 | 4922 | INIT_LIST_HEAD(&wl->devlist); |
a82d9922 | 4923 | INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work); |
18c8adeb | 4924 | INIT_WORK(&wl->txpower_adjust_work, b43_phy_txpower_adjust_work); |
f5d40eed MB |
4925 | INIT_WORK(&wl->tx_work, b43_tx_work); |
4926 | skb_queue_head_init(&wl->tx_queue); | |
e4d6b795 MB |
4927 | |
4928 | ssb_set_devtypedata(dev, wl); | |
060210f9 MB |
4929 | b43info(wl, "Broadcom %04X WLAN found (core revision %u)\n", |
4930 | dev->bus->chip_id, dev->id.revision); | |
e4d6b795 | 4931 | err = 0; |
060210f9 | 4932 | out: |
e4d6b795 MB |
4933 | return err; |
4934 | } | |
4935 | ||
4936 | static int b43_probe(struct ssb_device *dev, const struct ssb_device_id *id) | |
4937 | { | |
4938 | struct b43_wl *wl; | |
4939 | int err; | |
4940 | int first = 0; | |
4941 | ||
4942 | wl = ssb_get_devtypedata(dev); | |
4943 | if (!wl) { | |
4944 | /* Probing the first core. Must setup common struct b43_wl */ | |
4945 | first = 1; | |
4946 | err = b43_wireless_init(dev); | |
4947 | if (err) | |
4948 | goto out; | |
4949 | wl = ssb_get_devtypedata(dev); | |
4950 | B43_WARN_ON(!wl); | |
4951 | } | |
4952 | err = b43_one_core_attach(dev, wl); | |
4953 | if (err) | |
4954 | goto err_wireless_exit; | |
4955 | ||
4956 | if (first) { | |
4957 | err = ieee80211_register_hw(wl->hw); | |
4958 | if (err) | |
4959 | goto err_one_core_detach; | |
a78b3bb2 MB |
4960 | b43_leds_register(wl->current_dev); |
4961 | b43_rng_init(wl); | |
e4d6b795 MB |
4962 | } |
4963 | ||
4964 | out: | |
4965 | return err; | |
4966 | ||
4967 | err_one_core_detach: | |
4968 | b43_one_core_detach(dev); | |
4969 | err_wireless_exit: | |
4970 | if (first) | |
4971 | b43_wireless_exit(dev, wl); | |
4972 | return err; | |
4973 | } | |
4974 | ||
4975 | static void b43_remove(struct ssb_device *dev) | |
4976 | { | |
4977 | struct b43_wl *wl = ssb_get_devtypedata(dev); | |
4978 | struct b43_wldev *wldev = ssb_get_drvdata(dev); | |
4979 | ||
3bf0a32e MB |
4980 | /* We must cancel any work here before unregistering from ieee80211, |
4981 | * as the ieee80211 unreg will destroy the workqueue. */ | |
4982 | cancel_work_sync(&wldev->restart_work); | |
4983 | ||
e4d6b795 | 4984 | B43_WARN_ON(!wl); |
403a3a13 MB |
4985 | if (wl->current_dev == wldev) { |
4986 | /* Restore the queues count before unregistering, because firmware detect | |
4987 | * might have modified it. Restoring is important, so the networking | |
4988 | * stack can properly free resources. */ | |
4989 | wl->hw->queues = wl->mac80211_initially_registered_queues; | |
e899a3f2 | 4990 | wl->leds.stop = 1; |
a78b3bb2 | 4991 | cancel_work_sync(&wl->leds.work); |
e4d6b795 | 4992 | ieee80211_unregister_hw(wl->hw); |
403a3a13 | 4993 | } |
e4d6b795 MB |
4994 | |
4995 | b43_one_core_detach(dev); | |
4996 | ||
4997 | if (list_empty(&wl->devlist)) { | |
a78b3bb2 MB |
4998 | b43_rng_exit(wl); |
4999 | b43_leds_unregister(wldev); | |
e4d6b795 MB |
5000 | /* Last core on the chip unregistered. |
5001 | * We can destroy common struct b43_wl. | |
5002 | */ | |
5003 | b43_wireless_exit(dev, wl); | |
5004 | } | |
5005 | } | |
5006 | ||
5007 | /* Perform a hardware reset. This can be called from any context. */ | |
5008 | void b43_controller_restart(struct b43_wldev *dev, const char *reason) | |
5009 | { | |
5010 | /* Must avoid requeueing, if we are in shutdown. */ | |
5011 | if (b43_status(dev) < B43_STAT_INITIALIZED) | |
5012 | return; | |
5013 | b43info(dev->wl, "Controller RESET (%s) ...\n", reason); | |
42935eca | 5014 | ieee80211_queue_work(dev->wl->hw, &dev->restart_work); |
e4d6b795 MB |
5015 | } |
5016 | ||
e4d6b795 MB |
5017 | static struct ssb_driver b43_ssb_driver = { |
5018 | .name = KBUILD_MODNAME, | |
5019 | .id_table = b43_ssb_tbl, | |
5020 | .probe = b43_probe, | |
5021 | .remove = b43_remove, | |
e4d6b795 MB |
5022 | }; |
5023 | ||
26bc783f MB |
5024 | static void b43_print_driverinfo(void) |
5025 | { | |
5026 | const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "", | |
3dbba8e2 | 5027 | *feat_leds = "", *feat_sdio = ""; |
26bc783f MB |
5028 | |
5029 | #ifdef CONFIG_B43_PCI_AUTOSELECT | |
5030 | feat_pci = "P"; | |
5031 | #endif | |
5032 | #ifdef CONFIG_B43_PCMCIA | |
5033 | feat_pcmcia = "M"; | |
5034 | #endif | |
5035 | #ifdef CONFIG_B43_NPHY | |
5036 | feat_nphy = "N"; | |
5037 | #endif | |
5038 | #ifdef CONFIG_B43_LEDS | |
5039 | feat_leds = "L"; | |
3dbba8e2 AH |
5040 | #endif |
5041 | #ifdef CONFIG_B43_SDIO | |
5042 | feat_sdio = "S"; | |
26bc783f MB |
5043 | #endif |
5044 | printk(KERN_INFO "Broadcom 43xx driver loaded " | |
3dbba8e2 | 5045 | "[ Features: %s%s%s%s%s, Firmware-ID: " |
26bc783f MB |
5046 | B43_SUPPORTED_FIRMWARE_ID " ]\n", |
5047 | feat_pci, feat_pcmcia, feat_nphy, | |
3dbba8e2 | 5048 | feat_leds, feat_sdio); |
26bc783f MB |
5049 | } |
5050 | ||
e4d6b795 MB |
5051 | static int __init b43_init(void) |
5052 | { | |
5053 | int err; | |
5054 | ||
5055 | b43_debugfs_init(); | |
5056 | err = b43_pcmcia_init(); | |
5057 | if (err) | |
5058 | goto err_dfs_exit; | |
3dbba8e2 | 5059 | err = b43_sdio_init(); |
e4d6b795 MB |
5060 | if (err) |
5061 | goto err_pcmcia_exit; | |
3dbba8e2 AH |
5062 | err = ssb_driver_register(&b43_ssb_driver); |
5063 | if (err) | |
5064 | goto err_sdio_exit; | |
26bc783f | 5065 | b43_print_driverinfo(); |
e4d6b795 MB |
5066 | |
5067 | return err; | |
5068 | ||
3dbba8e2 AH |
5069 | err_sdio_exit: |
5070 | b43_sdio_exit(); | |
e4d6b795 MB |
5071 | err_pcmcia_exit: |
5072 | b43_pcmcia_exit(); | |
5073 | err_dfs_exit: | |
5074 | b43_debugfs_exit(); | |
5075 | return err; | |
5076 | } | |
5077 | ||
5078 | static void __exit b43_exit(void) | |
5079 | { | |
5080 | ssb_driver_unregister(&b43_ssb_driver); | |
3dbba8e2 | 5081 | b43_sdio_exit(); |
e4d6b795 MB |
5082 | b43_pcmcia_exit(); |
5083 | b43_debugfs_exit(); | |
5084 | } | |
5085 | ||
5086 | module_init(b43_init) | |
5087 | module_exit(b43_exit) |