]>
Commit | Line | Data |
---|---|---|
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 | ||
11 | Some parts of the code in this file are derived from the ipw2200 | |
12 | driver Copyright(c) 2003 - 2004 Intel Corporation. | |
13 | ||
14 | This program is free software; you can redistribute it and/or modify | |
15 | it under the terms of the GNU General Public License as published by | |
16 | the Free Software Foundation; either version 2 of the License, or | |
17 | (at your option) any later version. | |
18 | ||
19 | This program is distributed in the hope that it will be useful, | |
20 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | GNU General Public License for more details. | |
23 | ||
24 | You should have received a copy of the GNU General Public License | |
25 | along with this program; see the file COPYING. If not, write to | |
26 | the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, | |
27 | Boston, MA 02110-1301, USA. | |
28 | ||
29 | */ | |
30 | ||
31 | #include <linux/delay.h> | |
32 | #include <linux/init.h> | |
33 | #include <linux/moduleparam.h> | |
34 | #include <linux/if_arp.h> | |
35 | #include <linux/etherdevice.h> | |
e4d6b795 MB |
36 | #include <linux/firmware.h> |
37 | #include <linux/wireless.h> | |
38 | #include <linux/workqueue.h> | |
39 | #include <linux/skbuff.h> | |
96cf49a2 | 40 | #include <linux/io.h> |
e4d6b795 MB |
41 | #include <linux/dma-mapping.h> |
42 | #include <asm/unaligned.h> | |
43 | ||
44 | #include "b43.h" | |
45 | #include "main.h" | |
46 | #include "debugfs.h" | |
ef1a628d MB |
47 | #include "phy_common.h" |
48 | #include "phy_g.h" | |
3d0da751 | 49 | #include "phy_n.h" |
e4d6b795 | 50 | #include "dma.h" |
5100d5ac | 51 | #include "pio.h" |
e4d6b795 MB |
52 | #include "sysfs.h" |
53 | #include "xmit.h" | |
e4d6b795 MB |
54 | #include "lo.h" |
55 | #include "pcmcia.h" | |
56 | ||
57 | MODULE_DESCRIPTION("Broadcom B43 wireless driver"); | |
58 | MODULE_AUTHOR("Martin Langer"); | |
59 | MODULE_AUTHOR("Stefano Brivio"); | |
60 | MODULE_AUTHOR("Michael Buesch"); | |
0136e51e | 61 | MODULE_AUTHOR("Gábor Stefanik"); |
e4d6b795 MB |
62 | MODULE_LICENSE("GPL"); |
63 | ||
9c7d99d6 MB |
64 | MODULE_FIRMWARE(B43_SUPPORTED_FIRMWARE_ID); |
65 | ||
e4d6b795 MB |
66 | |
67 | static int modparam_bad_frames_preempt; | |
68 | module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444); | |
69 | MODULE_PARM_DESC(bad_frames_preempt, | |
70 | "enable(1) / disable(0) Bad Frames Preemption"); | |
71 | ||
e4d6b795 MB |
72 | static char modparam_fwpostfix[16]; |
73 | module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444); | |
74 | MODULE_PARM_DESC(fwpostfix, "Postfix for the .fw files to load."); | |
75 | ||
e4d6b795 MB |
76 | static int modparam_hwpctl; |
77 | module_param_named(hwpctl, modparam_hwpctl, int, 0444); | |
78 | MODULE_PARM_DESC(hwpctl, "Enable hardware-side power control (default off)"); | |
79 | ||
80 | static int modparam_nohwcrypt; | |
81 | module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); | |
82 | MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption."); | |
83 | ||
035d0243 | 84 | static int modparam_hwtkip; |
85 | module_param_named(hwtkip, modparam_hwtkip, int, 0444); | |
86 | MODULE_PARM_DESC(hwtkip, "Enable hardware tkip."); | |
87 | ||
403a3a13 MB |
88 | static int modparam_qos = 1; |
89 | module_param_named(qos, modparam_qos, int, 0444); | |
e6f5b934 MB |
90 | MODULE_PARM_DESC(qos, "Enable QOS support (default on)"); |
91 | ||
1855ba78 MB |
92 | static int modparam_btcoex = 1; |
93 | module_param_named(btcoex, modparam_btcoex, int, 0444); | |
c71dbd33 | 94 | MODULE_PARM_DESC(btcoex, "Enable Bluetooth coexistence (default on)"); |
1855ba78 | 95 | |
060210f9 MB |
96 | int b43_modparam_verbose = B43_VERBOSITY_DEFAULT; |
97 | module_param_named(verbose, b43_modparam_verbose, int, 0644); | |
98 | MODULE_PARM_DESC(verbose, "Log message verbosity: 0=error, 1=warn, 2=info(default), 3=debug"); | |
99 | ||
e6f5b934 | 100 | |
e4d6b795 MB |
101 | static const struct ssb_device_id b43_ssb_tbl[] = { |
102 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5), | |
103 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6), | |
104 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7), | |
105 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9), | |
106 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10), | |
d5c71e46 | 107 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11), |
013978b6 | 108 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13), |
6b1c7c67 | 109 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 15), |
92d6128e | 110 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 16), |
e4d6b795 MB |
111 | SSB_DEVTABLE_END |
112 | }; | |
113 | ||
114 | MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl); | |
115 | ||
116 | /* Channel and ratetables are shared for all devices. | |
117 | * They can't be const, because ieee80211 puts some precalculated | |
118 | * data in there. This data is the same for all devices, so we don't | |
119 | * get concurrency issues */ | |
120 | #define RATETAB_ENT(_rateid, _flags) \ | |
8318d78a JB |
121 | { \ |
122 | .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \ | |
123 | .hw_value = (_rateid), \ | |
124 | .flags = (_flags), \ | |
e4d6b795 | 125 | } |
8318d78a JB |
126 | |
127 | /* | |
128 | * NOTE: When changing this, sync with xmit.c's | |
129 | * b43_plcp_get_bitrate_idx_* functions! | |
130 | */ | |
e4d6b795 | 131 | static struct ieee80211_rate __b43_ratetable[] = { |
8318d78a JB |
132 | RATETAB_ENT(B43_CCK_RATE_1MB, 0), |
133 | RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE), | |
134 | RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE), | |
135 | RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE), | |
136 | RATETAB_ENT(B43_OFDM_RATE_6MB, 0), | |
137 | RATETAB_ENT(B43_OFDM_RATE_9MB, 0), | |
138 | RATETAB_ENT(B43_OFDM_RATE_12MB, 0), | |
139 | RATETAB_ENT(B43_OFDM_RATE_18MB, 0), | |
140 | RATETAB_ENT(B43_OFDM_RATE_24MB, 0), | |
141 | RATETAB_ENT(B43_OFDM_RATE_36MB, 0), | |
142 | RATETAB_ENT(B43_OFDM_RATE_48MB, 0), | |
143 | RATETAB_ENT(B43_OFDM_RATE_54MB, 0), | |
e4d6b795 MB |
144 | }; |
145 | ||
146 | #define b43_a_ratetable (__b43_ratetable + 4) | |
147 | #define b43_a_ratetable_size 8 | |
148 | #define b43_b_ratetable (__b43_ratetable + 0) | |
149 | #define b43_b_ratetable_size 4 | |
150 | #define b43_g_ratetable (__b43_ratetable + 0) | |
151 | #define b43_g_ratetable_size 12 | |
152 | ||
bb1eeff1 MB |
153 | #define CHAN4G(_channel, _freq, _flags) { \ |
154 | .band = IEEE80211_BAND_2GHZ, \ | |
155 | .center_freq = (_freq), \ | |
156 | .hw_value = (_channel), \ | |
157 | .flags = (_flags), \ | |
158 | .max_antenna_gain = 0, \ | |
159 | .max_power = 30, \ | |
160 | } | |
96c755a3 | 161 | static struct ieee80211_channel b43_2ghz_chantable[] = { |
bb1eeff1 MB |
162 | CHAN4G(1, 2412, 0), |
163 | CHAN4G(2, 2417, 0), | |
164 | CHAN4G(3, 2422, 0), | |
165 | CHAN4G(4, 2427, 0), | |
166 | CHAN4G(5, 2432, 0), | |
167 | CHAN4G(6, 2437, 0), | |
168 | CHAN4G(7, 2442, 0), | |
169 | CHAN4G(8, 2447, 0), | |
170 | CHAN4G(9, 2452, 0), | |
171 | CHAN4G(10, 2457, 0), | |
172 | CHAN4G(11, 2462, 0), | |
173 | CHAN4G(12, 2467, 0), | |
174 | CHAN4G(13, 2472, 0), | |
175 | CHAN4G(14, 2484, 0), | |
176 | }; | |
177 | #undef CHAN4G | |
178 | ||
179 | #define CHAN5G(_channel, _flags) { \ | |
180 | .band = IEEE80211_BAND_5GHZ, \ | |
181 | .center_freq = 5000 + (5 * (_channel)), \ | |
182 | .hw_value = (_channel), \ | |
183 | .flags = (_flags), \ | |
184 | .max_antenna_gain = 0, \ | |
185 | .max_power = 30, \ | |
186 | } | |
187 | static struct ieee80211_channel b43_5ghz_nphy_chantable[] = { | |
188 | CHAN5G(32, 0), CHAN5G(34, 0), | |
189 | CHAN5G(36, 0), CHAN5G(38, 0), | |
190 | CHAN5G(40, 0), CHAN5G(42, 0), | |
191 | CHAN5G(44, 0), CHAN5G(46, 0), | |
192 | CHAN5G(48, 0), CHAN5G(50, 0), | |
193 | CHAN5G(52, 0), CHAN5G(54, 0), | |
194 | CHAN5G(56, 0), CHAN5G(58, 0), | |
195 | CHAN5G(60, 0), CHAN5G(62, 0), | |
196 | CHAN5G(64, 0), CHAN5G(66, 0), | |
197 | CHAN5G(68, 0), CHAN5G(70, 0), | |
198 | CHAN5G(72, 0), CHAN5G(74, 0), | |
199 | CHAN5G(76, 0), CHAN5G(78, 0), | |
200 | CHAN5G(80, 0), CHAN5G(82, 0), | |
201 | CHAN5G(84, 0), CHAN5G(86, 0), | |
202 | CHAN5G(88, 0), CHAN5G(90, 0), | |
203 | CHAN5G(92, 0), CHAN5G(94, 0), | |
204 | CHAN5G(96, 0), CHAN5G(98, 0), | |
205 | CHAN5G(100, 0), CHAN5G(102, 0), | |
206 | CHAN5G(104, 0), CHAN5G(106, 0), | |
207 | CHAN5G(108, 0), CHAN5G(110, 0), | |
208 | CHAN5G(112, 0), CHAN5G(114, 0), | |
209 | CHAN5G(116, 0), CHAN5G(118, 0), | |
210 | CHAN5G(120, 0), CHAN5G(122, 0), | |
211 | CHAN5G(124, 0), CHAN5G(126, 0), | |
212 | CHAN5G(128, 0), CHAN5G(130, 0), | |
213 | CHAN5G(132, 0), CHAN5G(134, 0), | |
214 | CHAN5G(136, 0), CHAN5G(138, 0), | |
215 | CHAN5G(140, 0), CHAN5G(142, 0), | |
216 | CHAN5G(144, 0), CHAN5G(145, 0), | |
217 | CHAN5G(146, 0), CHAN5G(147, 0), | |
218 | CHAN5G(148, 0), CHAN5G(149, 0), | |
219 | CHAN5G(150, 0), CHAN5G(151, 0), | |
220 | CHAN5G(152, 0), CHAN5G(153, 0), | |
221 | CHAN5G(154, 0), CHAN5G(155, 0), | |
222 | CHAN5G(156, 0), CHAN5G(157, 0), | |
223 | CHAN5G(158, 0), CHAN5G(159, 0), | |
224 | CHAN5G(160, 0), CHAN5G(161, 0), | |
225 | CHAN5G(162, 0), CHAN5G(163, 0), | |
226 | CHAN5G(164, 0), CHAN5G(165, 0), | |
227 | CHAN5G(166, 0), CHAN5G(168, 0), | |
228 | CHAN5G(170, 0), CHAN5G(172, 0), | |
229 | CHAN5G(174, 0), CHAN5G(176, 0), | |
230 | CHAN5G(178, 0), CHAN5G(180, 0), | |
231 | CHAN5G(182, 0), CHAN5G(184, 0), | |
232 | CHAN5G(186, 0), CHAN5G(188, 0), | |
233 | CHAN5G(190, 0), CHAN5G(192, 0), | |
234 | CHAN5G(194, 0), CHAN5G(196, 0), | |
235 | CHAN5G(198, 0), CHAN5G(200, 0), | |
236 | CHAN5G(202, 0), CHAN5G(204, 0), | |
237 | CHAN5G(206, 0), CHAN5G(208, 0), | |
238 | CHAN5G(210, 0), CHAN5G(212, 0), | |
239 | CHAN5G(214, 0), CHAN5G(216, 0), | |
240 | CHAN5G(218, 0), CHAN5G(220, 0), | |
241 | CHAN5G(222, 0), CHAN5G(224, 0), | |
242 | CHAN5G(226, 0), CHAN5G(228, 0), | |
e4d6b795 MB |
243 | }; |
244 | ||
bb1eeff1 MB |
245 | static struct ieee80211_channel b43_5ghz_aphy_chantable[] = { |
246 | CHAN5G(34, 0), CHAN5G(36, 0), | |
247 | CHAN5G(38, 0), CHAN5G(40, 0), | |
248 | CHAN5G(42, 0), CHAN5G(44, 0), | |
249 | CHAN5G(46, 0), CHAN5G(48, 0), | |
250 | CHAN5G(52, 0), CHAN5G(56, 0), | |
251 | CHAN5G(60, 0), CHAN5G(64, 0), | |
252 | CHAN5G(100, 0), CHAN5G(104, 0), | |
253 | CHAN5G(108, 0), CHAN5G(112, 0), | |
254 | CHAN5G(116, 0), CHAN5G(120, 0), | |
255 | CHAN5G(124, 0), CHAN5G(128, 0), | |
256 | CHAN5G(132, 0), CHAN5G(136, 0), | |
257 | CHAN5G(140, 0), CHAN5G(149, 0), | |
258 | CHAN5G(153, 0), CHAN5G(157, 0), | |
259 | CHAN5G(161, 0), CHAN5G(165, 0), | |
260 | CHAN5G(184, 0), CHAN5G(188, 0), | |
261 | CHAN5G(192, 0), CHAN5G(196, 0), | |
262 | CHAN5G(200, 0), CHAN5G(204, 0), | |
263 | CHAN5G(208, 0), CHAN5G(212, 0), | |
264 | CHAN5G(216, 0), | |
265 | }; | |
266 | #undef CHAN5G | |
267 | ||
268 | static struct ieee80211_supported_band b43_band_5GHz_nphy = { | |
269 | .band = IEEE80211_BAND_5GHZ, | |
270 | .channels = b43_5ghz_nphy_chantable, | |
271 | .n_channels = ARRAY_SIZE(b43_5ghz_nphy_chantable), | |
272 | .bitrates = b43_a_ratetable, | |
273 | .n_bitrates = b43_a_ratetable_size, | |
e4d6b795 | 274 | }; |
8318d78a | 275 | |
bb1eeff1 MB |
276 | static struct ieee80211_supported_band b43_band_5GHz_aphy = { |
277 | .band = IEEE80211_BAND_5GHZ, | |
278 | .channels = b43_5ghz_aphy_chantable, | |
279 | .n_channels = ARRAY_SIZE(b43_5ghz_aphy_chantable), | |
280 | .bitrates = b43_a_ratetable, | |
281 | .n_bitrates = b43_a_ratetable_size, | |
8318d78a | 282 | }; |
e4d6b795 | 283 | |
8318d78a | 284 | static struct ieee80211_supported_band b43_band_2GHz = { |
bb1eeff1 MB |
285 | .band = IEEE80211_BAND_2GHZ, |
286 | .channels = b43_2ghz_chantable, | |
287 | .n_channels = ARRAY_SIZE(b43_2ghz_chantable), | |
288 | .bitrates = b43_g_ratetable, | |
289 | .n_bitrates = b43_g_ratetable_size, | |
8318d78a JB |
290 | }; |
291 | ||
e4d6b795 MB |
292 | static void b43_wireless_core_exit(struct b43_wldev *dev); |
293 | static int b43_wireless_core_init(struct b43_wldev *dev); | |
36dbd954 | 294 | static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev); |
e4d6b795 MB |
295 | static int b43_wireless_core_start(struct b43_wldev *dev); |
296 | ||
297 | static int b43_ratelimit(struct b43_wl *wl) | |
298 | { | |
299 | if (!wl || !wl->current_dev) | |
300 | return 1; | |
301 | if (b43_status(wl->current_dev) < B43_STAT_STARTED) | |
302 | return 1; | |
303 | /* We are up and running. | |
304 | * Ratelimit the messages to avoid DoS over the net. */ | |
305 | return net_ratelimit(); | |
306 | } | |
307 | ||
308 | void b43info(struct b43_wl *wl, const char *fmt, ...) | |
309 | { | |
310 | va_list args; | |
311 | ||
060210f9 MB |
312 | if (b43_modparam_verbose < B43_VERBOSITY_INFO) |
313 | return; | |
e4d6b795 MB |
314 | if (!b43_ratelimit(wl)) |
315 | return; | |
316 | va_start(args, fmt); | |
317 | printk(KERN_INFO "b43-%s: ", | |
318 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); | |
319 | vprintk(fmt, args); | |
320 | va_end(args); | |
321 | } | |
322 | ||
323 | void b43err(struct b43_wl *wl, const char *fmt, ...) | |
324 | { | |
325 | va_list args; | |
326 | ||
060210f9 MB |
327 | if (b43_modparam_verbose < B43_VERBOSITY_ERROR) |
328 | return; | |
e4d6b795 MB |
329 | if (!b43_ratelimit(wl)) |
330 | return; | |
331 | va_start(args, fmt); | |
332 | printk(KERN_ERR "b43-%s ERROR: ", | |
333 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); | |
334 | vprintk(fmt, args); | |
335 | va_end(args); | |
336 | } | |
337 | ||
338 | void b43warn(struct b43_wl *wl, const char *fmt, ...) | |
339 | { | |
340 | va_list args; | |
341 | ||
060210f9 MB |
342 | if (b43_modparam_verbose < B43_VERBOSITY_WARN) |
343 | return; | |
e4d6b795 MB |
344 | if (!b43_ratelimit(wl)) |
345 | return; | |
346 | va_start(args, fmt); | |
347 | printk(KERN_WARNING "b43-%s warning: ", | |
348 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); | |
349 | vprintk(fmt, args); | |
350 | va_end(args); | |
351 | } | |
352 | ||
e4d6b795 MB |
353 | void b43dbg(struct b43_wl *wl, const char *fmt, ...) |
354 | { | |
355 | va_list args; | |
356 | ||
060210f9 MB |
357 | if (b43_modparam_verbose < B43_VERBOSITY_DEBUG) |
358 | return; | |
e4d6b795 MB |
359 | va_start(args, fmt); |
360 | printk(KERN_DEBUG "b43-%s debug: ", | |
361 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); | |
362 | vprintk(fmt, args); | |
363 | va_end(args); | |
364 | } | |
e4d6b795 MB |
365 | |
366 | static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val) | |
367 | { | |
368 | u32 macctl; | |
369 | ||
370 | B43_WARN_ON(offset % 4 != 0); | |
371 | ||
372 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
373 | if (macctl & B43_MACCTL_BE) | |
374 | val = swab32(val); | |
375 | ||
376 | b43_write32(dev, B43_MMIO_RAM_CONTROL, offset); | |
377 | mmiowb(); | |
378 | b43_write32(dev, B43_MMIO_RAM_DATA, val); | |
379 | } | |
380 | ||
280d0e16 MB |
381 | static inline void b43_shm_control_word(struct b43_wldev *dev, |
382 | u16 routing, u16 offset) | |
e4d6b795 MB |
383 | { |
384 | u32 control; | |
385 | ||
386 | /* "offset" is the WORD offset. */ | |
e4d6b795 MB |
387 | control = routing; |
388 | control <<= 16; | |
389 | control |= offset; | |
390 | b43_write32(dev, B43_MMIO_SHM_CONTROL, control); | |
391 | } | |
392 | ||
69eddc8a | 393 | u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset) |
e4d6b795 MB |
394 | { |
395 | u32 ret; | |
396 | ||
397 | if (routing == B43_SHM_SHARED) { | |
398 | B43_WARN_ON(offset & 0x0001); | |
399 | if (offset & 0x0003) { | |
400 | /* Unaligned access */ | |
401 | b43_shm_control_word(dev, routing, offset >> 2); | |
402 | ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED); | |
e4d6b795 | 403 | b43_shm_control_word(dev, routing, (offset >> 2) + 1); |
f62ae6cd | 404 | ret |= ((u32)b43_read16(dev, B43_MMIO_SHM_DATA)) << 16; |
e4d6b795 | 405 | |
280d0e16 | 406 | goto out; |
e4d6b795 MB |
407 | } |
408 | offset >>= 2; | |
409 | } | |
410 | b43_shm_control_word(dev, routing, offset); | |
411 | ret = b43_read32(dev, B43_MMIO_SHM_DATA); | |
280d0e16 | 412 | out: |
e4d6b795 MB |
413 | return ret; |
414 | } | |
415 | ||
69eddc8a | 416 | u16 b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset) |
6bbc321a MB |
417 | { |
418 | u16 ret; | |
419 | ||
e4d6b795 MB |
420 | if (routing == B43_SHM_SHARED) { |
421 | B43_WARN_ON(offset & 0x0001); | |
422 | if (offset & 0x0003) { | |
423 | /* Unaligned access */ | |
424 | b43_shm_control_word(dev, routing, offset >> 2); | |
425 | ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED); | |
426 | ||
280d0e16 | 427 | goto out; |
e4d6b795 MB |
428 | } |
429 | offset >>= 2; | |
430 | } | |
431 | b43_shm_control_word(dev, routing, offset); | |
432 | ret = b43_read16(dev, B43_MMIO_SHM_DATA); | |
280d0e16 | 433 | out: |
e4d6b795 MB |
434 | return ret; |
435 | } | |
436 | ||
69eddc8a | 437 | void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value) |
6bbc321a | 438 | { |
e4d6b795 MB |
439 | if (routing == B43_SHM_SHARED) { |
440 | B43_WARN_ON(offset & 0x0001); | |
441 | if (offset & 0x0003) { | |
442 | /* Unaligned access */ | |
443 | b43_shm_control_word(dev, routing, offset >> 2); | |
e4d6b795 | 444 | b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, |
f62ae6cd | 445 | value & 0xFFFF); |
e4d6b795 | 446 | b43_shm_control_word(dev, routing, (offset >> 2) + 1); |
f62ae6cd MB |
447 | b43_write16(dev, B43_MMIO_SHM_DATA, |
448 | (value >> 16) & 0xFFFF); | |
6bbc321a | 449 | return; |
e4d6b795 MB |
450 | } |
451 | offset >>= 2; | |
452 | } | |
453 | b43_shm_control_word(dev, routing, offset); | |
e4d6b795 MB |
454 | b43_write32(dev, B43_MMIO_SHM_DATA, value); |
455 | } | |
456 | ||
69eddc8a | 457 | void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value) |
6bbc321a | 458 | { |
e4d6b795 MB |
459 | if (routing == B43_SHM_SHARED) { |
460 | B43_WARN_ON(offset & 0x0001); | |
461 | if (offset & 0x0003) { | |
462 | /* Unaligned access */ | |
463 | b43_shm_control_word(dev, routing, offset >> 2); | |
e4d6b795 | 464 | b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value); |
6bbc321a | 465 | return; |
e4d6b795 MB |
466 | } |
467 | offset >>= 2; | |
468 | } | |
469 | b43_shm_control_word(dev, routing, offset); | |
e4d6b795 | 470 | b43_write16(dev, B43_MMIO_SHM_DATA, value); |
6bbc321a MB |
471 | } |
472 | ||
e4d6b795 | 473 | /* Read HostFlags */ |
99da185a | 474 | u64 b43_hf_read(struct b43_wldev *dev) |
e4d6b795 | 475 | { |
35f0d354 | 476 | u64 ret; |
e4d6b795 MB |
477 | |
478 | ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI); | |
479 | ret <<= 16; | |
35f0d354 MB |
480 | ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI); |
481 | ret <<= 16; | |
e4d6b795 MB |
482 | ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO); |
483 | ||
484 | return ret; | |
485 | } | |
486 | ||
487 | /* Write HostFlags */ | |
35f0d354 | 488 | void b43_hf_write(struct b43_wldev *dev, u64 value) |
e4d6b795 | 489 | { |
35f0d354 MB |
490 | u16 lo, mi, hi; |
491 | ||
492 | lo = (value & 0x00000000FFFFULL); | |
493 | mi = (value & 0x0000FFFF0000ULL) >> 16; | |
494 | hi = (value & 0xFFFF00000000ULL) >> 32; | |
495 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO, lo); | |
496 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI, mi); | |
497 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi); | |
e4d6b795 MB |
498 | } |
499 | ||
403a3a13 MB |
500 | /* Read the firmware capabilities bitmask (Opensource firmware only) */ |
501 | static u16 b43_fwcapa_read(struct b43_wldev *dev) | |
502 | { | |
503 | B43_WARN_ON(!dev->fw.opensource); | |
504 | return b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_FWCAPA); | |
505 | } | |
506 | ||
3ebbbb56 | 507 | void b43_tsf_read(struct b43_wldev *dev, u64 *tsf) |
e4d6b795 | 508 | { |
3ebbbb56 MB |
509 | u32 low, high; |
510 | ||
511 | B43_WARN_ON(dev->dev->id.revision < 3); | |
512 | ||
513 | /* The hardware guarantees us an atomic read, if we | |
514 | * read the low register first. */ | |
515 | low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW); | |
516 | high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH); | |
517 | ||
518 | *tsf = high; | |
519 | *tsf <<= 32; | |
520 | *tsf |= low; | |
e4d6b795 MB |
521 | } |
522 | ||
523 | static void b43_time_lock(struct b43_wldev *dev) | |
524 | { | |
525 | u32 macctl; | |
526 | ||
527 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
528 | macctl |= B43_MACCTL_TBTTHOLD; | |
529 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
530 | /* Commit the write */ | |
531 | b43_read32(dev, B43_MMIO_MACCTL); | |
532 | } | |
533 | ||
534 | static void b43_time_unlock(struct b43_wldev *dev) | |
535 | { | |
536 | u32 macctl; | |
537 | ||
538 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
539 | macctl &= ~B43_MACCTL_TBTTHOLD; | |
540 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
541 | /* Commit the write */ | |
542 | b43_read32(dev, B43_MMIO_MACCTL); | |
543 | } | |
544 | ||
545 | static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf) | |
546 | { | |
3ebbbb56 MB |
547 | u32 low, high; |
548 | ||
549 | B43_WARN_ON(dev->dev->id.revision < 3); | |
550 | ||
551 | low = tsf; | |
552 | high = (tsf >> 32); | |
553 | /* The hardware guarantees us an atomic write, if we | |
554 | * write the low register first. */ | |
555 | b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, low); | |
556 | mmiowb(); | |
557 | b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, high); | |
558 | mmiowb(); | |
e4d6b795 MB |
559 | } |
560 | ||
561 | void b43_tsf_write(struct b43_wldev *dev, u64 tsf) | |
562 | { | |
563 | b43_time_lock(dev); | |
564 | b43_tsf_write_locked(dev, tsf); | |
565 | b43_time_unlock(dev); | |
566 | } | |
567 | ||
568 | static | |
99da185a | 569 | void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 *mac) |
e4d6b795 MB |
570 | { |
571 | static const u8 zero_addr[ETH_ALEN] = { 0 }; | |
572 | u16 data; | |
573 | ||
574 | if (!mac) | |
575 | mac = zero_addr; | |
576 | ||
577 | offset |= 0x0020; | |
578 | b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset); | |
579 | ||
580 | data = mac[0]; | |
581 | data |= mac[1] << 8; | |
582 | b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); | |
583 | data = mac[2]; | |
584 | data |= mac[3] << 8; | |
585 | b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); | |
586 | data = mac[4]; | |
587 | data |= mac[5] << 8; | |
588 | b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); | |
589 | } | |
590 | ||
591 | static void b43_write_mac_bssid_templates(struct b43_wldev *dev) | |
592 | { | |
593 | const u8 *mac; | |
594 | const u8 *bssid; | |
595 | u8 mac_bssid[ETH_ALEN * 2]; | |
596 | int i; | |
597 | u32 tmp; | |
598 | ||
599 | bssid = dev->wl->bssid; | |
600 | mac = dev->wl->mac_addr; | |
601 | ||
602 | b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid); | |
603 | ||
604 | memcpy(mac_bssid, mac, ETH_ALEN); | |
605 | memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN); | |
606 | ||
607 | /* Write our MAC address and BSSID to template ram */ | |
608 | for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) { | |
609 | tmp = (u32) (mac_bssid[i + 0]); | |
610 | tmp |= (u32) (mac_bssid[i + 1]) << 8; | |
611 | tmp |= (u32) (mac_bssid[i + 2]) << 16; | |
612 | tmp |= (u32) (mac_bssid[i + 3]) << 24; | |
613 | b43_ram_write(dev, 0x20 + i, tmp); | |
614 | } | |
615 | } | |
616 | ||
4150c572 | 617 | static void b43_upload_card_macaddress(struct b43_wldev *dev) |
e4d6b795 | 618 | { |
e4d6b795 | 619 | b43_write_mac_bssid_templates(dev); |
4150c572 | 620 | b43_macfilter_set(dev, B43_MACFILTER_SELF, dev->wl->mac_addr); |
e4d6b795 MB |
621 | } |
622 | ||
623 | static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time) | |
624 | { | |
625 | /* slot_time is in usec. */ | |
626 | if (dev->phy.type != B43_PHYTYPE_G) | |
627 | return; | |
628 | b43_write16(dev, 0x684, 510 + slot_time); | |
629 | b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time); | |
630 | } | |
631 | ||
632 | static void b43_short_slot_timing_enable(struct b43_wldev *dev) | |
633 | { | |
634 | b43_set_slot_time(dev, 9); | |
e4d6b795 MB |
635 | } |
636 | ||
637 | static void b43_short_slot_timing_disable(struct b43_wldev *dev) | |
638 | { | |
639 | b43_set_slot_time(dev, 20); | |
e4d6b795 MB |
640 | } |
641 | ||
e4d6b795 | 642 | /* DummyTransmission function, as documented on |
2f19c287 | 643 | * http://bcm-v4.sipsolutions.net/802.11/DummyTransmission |
e4d6b795 | 644 | */ |
2f19c287 | 645 | void b43_dummy_transmission(struct b43_wldev *dev, bool ofdm, bool pa_on) |
e4d6b795 MB |
646 | { |
647 | struct b43_phy *phy = &dev->phy; | |
648 | unsigned int i, max_loop; | |
649 | u16 value; | |
650 | u32 buffer[5] = { | |
651 | 0x00000000, | |
652 | 0x00D40000, | |
653 | 0x00000000, | |
654 | 0x01000000, | |
655 | 0x00000000, | |
656 | }; | |
657 | ||
2f19c287 | 658 | if (ofdm) { |
e4d6b795 MB |
659 | max_loop = 0x1E; |
660 | buffer[0] = 0x000201CC; | |
2f19c287 | 661 | } else { |
e4d6b795 MB |
662 | max_loop = 0xFA; |
663 | buffer[0] = 0x000B846E; | |
e4d6b795 MB |
664 | } |
665 | ||
666 | for (i = 0; i < 5; i++) | |
667 | b43_ram_write(dev, i * 4, buffer[i]); | |
668 | ||
e4d6b795 | 669 | b43_write16(dev, 0x0568, 0x0000); |
2f19c287 GS |
670 | if (dev->dev->id.revision < 11) |
671 | b43_write16(dev, 0x07C0, 0x0000); | |
672 | else | |
673 | b43_write16(dev, 0x07C0, 0x0100); | |
674 | value = (ofdm ? 0x41 : 0x40); | |
e4d6b795 | 675 | b43_write16(dev, 0x050C, value); |
2f19c287 GS |
676 | if ((phy->type == B43_PHYTYPE_N) || (phy->type == B43_PHYTYPE_LP)) |
677 | b43_write16(dev, 0x0514, 0x1A02); | |
e4d6b795 MB |
678 | b43_write16(dev, 0x0508, 0x0000); |
679 | b43_write16(dev, 0x050A, 0x0000); | |
680 | b43_write16(dev, 0x054C, 0x0000); | |
681 | b43_write16(dev, 0x056A, 0x0014); | |
682 | b43_write16(dev, 0x0568, 0x0826); | |
683 | b43_write16(dev, 0x0500, 0x0000); | |
2f19c287 GS |
684 | if (!pa_on && (phy->type == B43_PHYTYPE_N)) { |
685 | //SPEC TODO | |
686 | } | |
687 | ||
688 | switch (phy->type) { | |
689 | case B43_PHYTYPE_N: | |
690 | b43_write16(dev, 0x0502, 0x00D0); | |
691 | break; | |
692 | case B43_PHYTYPE_LP: | |
693 | b43_write16(dev, 0x0502, 0x0050); | |
694 | break; | |
695 | default: | |
696 | b43_write16(dev, 0x0502, 0x0030); | |
697 | } | |
e4d6b795 MB |
698 | |
699 | if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) | |
700 | b43_radio_write16(dev, 0x0051, 0x0017); | |
701 | for (i = 0x00; i < max_loop; i++) { | |
702 | value = b43_read16(dev, 0x050E); | |
703 | if (value & 0x0080) | |
704 | break; | |
705 | udelay(10); | |
706 | } | |
707 | for (i = 0x00; i < 0x0A; i++) { | |
708 | value = b43_read16(dev, 0x050E); | |
709 | if (value & 0x0400) | |
710 | break; | |
711 | udelay(10); | |
712 | } | |
1d280ddc | 713 | for (i = 0x00; i < 0x19; i++) { |
e4d6b795 MB |
714 | value = b43_read16(dev, 0x0690); |
715 | if (!(value & 0x0100)) | |
716 | break; | |
717 | udelay(10); | |
718 | } | |
719 | if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) | |
720 | b43_radio_write16(dev, 0x0051, 0x0037); | |
721 | } | |
722 | ||
723 | static void key_write(struct b43_wldev *dev, | |
99da185a | 724 | u8 index, u8 algorithm, const u8 *key) |
e4d6b795 MB |
725 | { |
726 | unsigned int i; | |
727 | u32 offset; | |
728 | u16 value; | |
729 | u16 kidx; | |
730 | ||
731 | /* Key index/algo block */ | |
732 | kidx = b43_kidx_to_fw(dev, index); | |
733 | value = ((kidx << 4) | algorithm); | |
734 | b43_shm_write16(dev, B43_SHM_SHARED, | |
735 | B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value); | |
736 | ||
737 | /* Write the key to the Key Table Pointer offset */ | |
738 | offset = dev->ktp + (index * B43_SEC_KEYSIZE); | |
739 | for (i = 0; i < B43_SEC_KEYSIZE; i += 2) { | |
740 | value = key[i]; | |
741 | value |= (u16) (key[i + 1]) << 8; | |
742 | b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value); | |
743 | } | |
744 | } | |
745 | ||
99da185a | 746 | static void keymac_write(struct b43_wldev *dev, u8 index, const u8 *addr) |
e4d6b795 MB |
747 | { |
748 | u32 addrtmp[2] = { 0, 0, }; | |
66d2d089 | 749 | u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2; |
e4d6b795 MB |
750 | |
751 | if (b43_new_kidx_api(dev)) | |
66d2d089 | 752 | pairwise_keys_start = B43_NR_GROUP_KEYS; |
e4d6b795 | 753 | |
66d2d089 MB |
754 | B43_WARN_ON(index < pairwise_keys_start); |
755 | /* We have four default TX keys and possibly four default RX keys. | |
e4d6b795 MB |
756 | * Physical mac 0 is mapped to physical key 4 or 8, depending |
757 | * on the firmware version. | |
758 | * So we must adjust the index here. | |
759 | */ | |
66d2d089 MB |
760 | index -= pairwise_keys_start; |
761 | B43_WARN_ON(index >= B43_NR_PAIRWISE_KEYS); | |
e4d6b795 MB |
762 | |
763 | if (addr) { | |
764 | addrtmp[0] = addr[0]; | |
765 | addrtmp[0] |= ((u32) (addr[1]) << 8); | |
766 | addrtmp[0] |= ((u32) (addr[2]) << 16); | |
767 | addrtmp[0] |= ((u32) (addr[3]) << 24); | |
768 | addrtmp[1] = addr[4]; | |
769 | addrtmp[1] |= ((u32) (addr[5]) << 8); | |
770 | } | |
771 | ||
66d2d089 MB |
772 | /* Receive match transmitter address (RCMTA) mechanism */ |
773 | b43_shm_write32(dev, B43_SHM_RCMTA, | |
774 | (index * 2) + 0, addrtmp[0]); | |
775 | b43_shm_write16(dev, B43_SHM_RCMTA, | |
776 | (index * 2) + 1, addrtmp[1]); | |
e4d6b795 MB |
777 | } |
778 | ||
035d0243 | 779 | /* The ucode will use phase1 key with TEK key to decrypt rx packets. |
780 | * When a packet is received, the iv32 is checked. | |
781 | * - if it doesn't the packet is returned without modification (and software | |
782 | * decryption can be done). That's what happen when iv16 wrap. | |
783 | * - if it does, the rc4 key is computed, and decryption is tried. | |
784 | * Either it will success and B43_RX_MAC_DEC is returned, | |
785 | * either it fails and B43_RX_MAC_DEC|B43_RX_MAC_DECERR is returned | |
786 | * and the packet is not usable (it got modified by the ucode). | |
787 | * So in order to never have B43_RX_MAC_DECERR, we should provide | |
788 | * a iv32 and phase1key that match. Because we drop packets in case of | |
789 | * B43_RX_MAC_DECERR, if we have a correct iv32 but a wrong phase1key, all | |
790 | * packets will be lost without higher layer knowing (ie no resync possible | |
791 | * until next wrap). | |
792 | * | |
793 | * NOTE : this should support 50 key like RCMTA because | |
794 | * (B43_SHM_SH_KEYIDXBLOCK - B43_SHM_SH_TKIPTSCTTAK)/14 = 50 | |
795 | */ | |
796 | static void rx_tkip_phase1_write(struct b43_wldev *dev, u8 index, u32 iv32, | |
797 | u16 *phase1key) | |
798 | { | |
799 | unsigned int i; | |
800 | u32 offset; | |
801 | u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2; | |
802 | ||
803 | if (!modparam_hwtkip) | |
804 | return; | |
805 | ||
806 | if (b43_new_kidx_api(dev)) | |
807 | pairwise_keys_start = B43_NR_GROUP_KEYS; | |
808 | ||
809 | B43_WARN_ON(index < pairwise_keys_start); | |
810 | /* We have four default TX keys and possibly four default RX keys. | |
811 | * Physical mac 0 is mapped to physical key 4 or 8, depending | |
812 | * on the firmware version. | |
813 | * So we must adjust the index here. | |
814 | */ | |
815 | index -= pairwise_keys_start; | |
816 | B43_WARN_ON(index >= B43_NR_PAIRWISE_KEYS); | |
817 | ||
818 | if (b43_debug(dev, B43_DBG_KEYS)) { | |
819 | b43dbg(dev->wl, "rx_tkip_phase1_write : idx 0x%x, iv32 0x%x\n", | |
820 | index, iv32); | |
821 | } | |
822 | /* Write the key to the RX tkip shared mem */ | |
823 | offset = B43_SHM_SH_TKIPTSCTTAK + index * (10 + 4); | |
824 | for (i = 0; i < 10; i += 2) { | |
825 | b43_shm_write16(dev, B43_SHM_SHARED, offset + i, | |
826 | phase1key ? phase1key[i / 2] : 0); | |
827 | } | |
828 | b43_shm_write16(dev, B43_SHM_SHARED, offset + i, iv32); | |
829 | b43_shm_write16(dev, B43_SHM_SHARED, offset + i + 2, iv32 >> 16); | |
830 | } | |
831 | ||
832 | static void b43_op_update_tkip_key(struct ieee80211_hw *hw, | |
833 | struct ieee80211_key_conf *keyconf, const u8 *addr, | |
834 | u32 iv32, u16 *phase1key) | |
835 | { | |
836 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
837 | struct b43_wldev *dev; | |
838 | int index = keyconf->hw_key_idx; | |
839 | ||
840 | if (B43_WARN_ON(!modparam_hwtkip)) | |
841 | return; | |
842 | ||
843 | mutex_lock(&wl->mutex); | |
844 | ||
845 | dev = wl->current_dev; | |
846 | if (!dev || b43_status(dev) < B43_STAT_INITIALIZED) | |
847 | goto out_unlock; | |
848 | ||
849 | keymac_write(dev, index, NULL); /* First zero out mac to avoid race */ | |
850 | ||
851 | rx_tkip_phase1_write(dev, index, iv32, phase1key); | |
852 | keymac_write(dev, index, addr); | |
853 | ||
854 | out_unlock: | |
855 | mutex_unlock(&wl->mutex); | |
856 | } | |
857 | ||
e4d6b795 MB |
858 | static void do_key_write(struct b43_wldev *dev, |
859 | u8 index, u8 algorithm, | |
99da185a | 860 | const u8 *key, size_t key_len, const u8 *mac_addr) |
e4d6b795 MB |
861 | { |
862 | u8 buf[B43_SEC_KEYSIZE] = { 0, }; | |
66d2d089 | 863 | u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2; |
e4d6b795 MB |
864 | |
865 | if (b43_new_kidx_api(dev)) | |
66d2d089 | 866 | pairwise_keys_start = B43_NR_GROUP_KEYS; |
e4d6b795 | 867 | |
66d2d089 | 868 | B43_WARN_ON(index >= ARRAY_SIZE(dev->key)); |
e4d6b795 MB |
869 | B43_WARN_ON(key_len > B43_SEC_KEYSIZE); |
870 | ||
66d2d089 | 871 | if (index >= pairwise_keys_start) |
e4d6b795 | 872 | keymac_write(dev, index, NULL); /* First zero out mac. */ |
035d0243 | 873 | if (algorithm == B43_SEC_ALGO_TKIP) { |
874 | /* | |
875 | * We should provide an initial iv32, phase1key pair. | |
876 | * We could start with iv32=0 and compute the corresponding | |
877 | * phase1key, but this means calling ieee80211_get_tkip_key | |
878 | * with a fake skb (or export other tkip function). | |
879 | * Because we are lazy we hope iv32 won't start with | |
880 | * 0xffffffff and let's b43_op_update_tkip_key provide a | |
881 | * correct pair. | |
882 | */ | |
883 | rx_tkip_phase1_write(dev, index, 0xffffffff, (u16*)buf); | |
884 | } else if (index >= pairwise_keys_start) /* clear it */ | |
885 | rx_tkip_phase1_write(dev, index, 0, NULL); | |
e4d6b795 MB |
886 | if (key) |
887 | memcpy(buf, key, key_len); | |
888 | key_write(dev, index, algorithm, buf); | |
66d2d089 | 889 | if (index >= pairwise_keys_start) |
e4d6b795 MB |
890 | keymac_write(dev, index, mac_addr); |
891 | ||
892 | dev->key[index].algorithm = algorithm; | |
893 | } | |
894 | ||
895 | static int b43_key_write(struct b43_wldev *dev, | |
896 | int index, u8 algorithm, | |
99da185a JD |
897 | const u8 *key, size_t key_len, |
898 | const u8 *mac_addr, | |
e4d6b795 MB |
899 | struct ieee80211_key_conf *keyconf) |
900 | { | |
901 | int i; | |
66d2d089 | 902 | int pairwise_keys_start; |
e4d6b795 | 903 | |
035d0243 | 904 | /* For ALG_TKIP the key is encoded as a 256-bit (32 byte) data block: |
905 | * - Temporal Encryption Key (128 bits) | |
906 | * - Temporal Authenticator Tx MIC Key (64 bits) | |
907 | * - Temporal Authenticator Rx MIC Key (64 bits) | |
908 | * | |
909 | * Hardware only store TEK | |
910 | */ | |
911 | if (algorithm == B43_SEC_ALGO_TKIP && key_len == 32) | |
912 | key_len = 16; | |
e4d6b795 MB |
913 | if (key_len > B43_SEC_KEYSIZE) |
914 | return -EINVAL; | |
66d2d089 | 915 | for (i = 0; i < ARRAY_SIZE(dev->key); i++) { |
e4d6b795 MB |
916 | /* Check that we don't already have this key. */ |
917 | B43_WARN_ON(dev->key[i].keyconf == keyconf); | |
918 | } | |
919 | if (index < 0) { | |
e808e586 | 920 | /* Pairwise key. Get an empty slot for the key. */ |
e4d6b795 | 921 | if (b43_new_kidx_api(dev)) |
66d2d089 | 922 | pairwise_keys_start = B43_NR_GROUP_KEYS; |
e4d6b795 | 923 | else |
66d2d089 MB |
924 | pairwise_keys_start = B43_NR_GROUP_KEYS * 2; |
925 | for (i = pairwise_keys_start; | |
926 | i < pairwise_keys_start + B43_NR_PAIRWISE_KEYS; | |
927 | i++) { | |
928 | B43_WARN_ON(i >= ARRAY_SIZE(dev->key)); | |
e4d6b795 MB |
929 | if (!dev->key[i].keyconf) { |
930 | /* found empty */ | |
931 | index = i; | |
932 | break; | |
933 | } | |
934 | } | |
935 | if (index < 0) { | |
e808e586 | 936 | b43warn(dev->wl, "Out of hardware key memory\n"); |
e4d6b795 MB |
937 | return -ENOSPC; |
938 | } | |
939 | } else | |
940 | B43_WARN_ON(index > 3); | |
941 | ||
942 | do_key_write(dev, index, algorithm, key, key_len, mac_addr); | |
943 | if ((index <= 3) && !b43_new_kidx_api(dev)) { | |
944 | /* Default RX key */ | |
945 | B43_WARN_ON(mac_addr); | |
946 | do_key_write(dev, index + 4, algorithm, key, key_len, NULL); | |
947 | } | |
948 | keyconf->hw_key_idx = index; | |
949 | dev->key[index].keyconf = keyconf; | |
950 | ||
951 | return 0; | |
952 | } | |
953 | ||
954 | static int b43_key_clear(struct b43_wldev *dev, int index) | |
955 | { | |
66d2d089 | 956 | if (B43_WARN_ON((index < 0) || (index >= ARRAY_SIZE(dev->key)))) |
e4d6b795 MB |
957 | return -EINVAL; |
958 | do_key_write(dev, index, B43_SEC_ALGO_NONE, | |
959 | NULL, B43_SEC_KEYSIZE, NULL); | |
960 | if ((index <= 3) && !b43_new_kidx_api(dev)) { | |
961 | do_key_write(dev, index + 4, B43_SEC_ALGO_NONE, | |
962 | NULL, B43_SEC_KEYSIZE, NULL); | |
963 | } | |
964 | dev->key[index].keyconf = NULL; | |
965 | ||
966 | return 0; | |
967 | } | |
968 | ||
969 | static void b43_clear_keys(struct b43_wldev *dev) | |
970 | { | |
66d2d089 | 971 | int i, count; |
e4d6b795 | 972 | |
66d2d089 MB |
973 | if (b43_new_kidx_api(dev)) |
974 | count = B43_NR_GROUP_KEYS + B43_NR_PAIRWISE_KEYS; | |
975 | else | |
976 | count = B43_NR_GROUP_KEYS * 2 + B43_NR_PAIRWISE_KEYS; | |
977 | for (i = 0; i < count; i++) | |
e4d6b795 MB |
978 | b43_key_clear(dev, i); |
979 | } | |
980 | ||
9cf7f247 MB |
981 | static void b43_dump_keymemory(struct b43_wldev *dev) |
982 | { | |
66d2d089 | 983 | unsigned int i, index, count, offset, pairwise_keys_start; |
9cf7f247 MB |
984 | u8 mac[ETH_ALEN]; |
985 | u16 algo; | |
986 | u32 rcmta0; | |
987 | u16 rcmta1; | |
988 | u64 hf; | |
989 | struct b43_key *key; | |
990 | ||
991 | if (!b43_debug(dev, B43_DBG_KEYS)) | |
992 | return; | |
993 | ||
994 | hf = b43_hf_read(dev); | |
995 | b43dbg(dev->wl, "Hardware key memory dump: USEDEFKEYS=%u\n", | |
996 | !!(hf & B43_HF_USEDEFKEYS)); | |
66d2d089 MB |
997 | if (b43_new_kidx_api(dev)) { |
998 | pairwise_keys_start = B43_NR_GROUP_KEYS; | |
999 | count = B43_NR_GROUP_KEYS + B43_NR_PAIRWISE_KEYS; | |
1000 | } else { | |
1001 | pairwise_keys_start = B43_NR_GROUP_KEYS * 2; | |
1002 | count = B43_NR_GROUP_KEYS * 2 + B43_NR_PAIRWISE_KEYS; | |
1003 | } | |
1004 | for (index = 0; index < count; index++) { | |
9cf7f247 MB |
1005 | key = &(dev->key[index]); |
1006 | printk(KERN_DEBUG "Key slot %02u: %s", | |
1007 | index, (key->keyconf == NULL) ? " " : "*"); | |
1008 | offset = dev->ktp + (index * B43_SEC_KEYSIZE); | |
1009 | for (i = 0; i < B43_SEC_KEYSIZE; i += 2) { | |
1010 | u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i); | |
1011 | printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF)); | |
1012 | } | |
1013 | ||
1014 | algo = b43_shm_read16(dev, B43_SHM_SHARED, | |
1015 | B43_SHM_SH_KEYIDXBLOCK + (index * 2)); | |
1016 | printk(" Algo: %04X/%02X", algo, key->algorithm); | |
1017 | ||
66d2d089 | 1018 | if (index >= pairwise_keys_start) { |
035d0243 | 1019 | if (key->algorithm == B43_SEC_ALGO_TKIP) { |
1020 | printk(" TKIP: "); | |
1021 | offset = B43_SHM_SH_TKIPTSCTTAK + (index - 4) * (10 + 4); | |
1022 | for (i = 0; i < 14; i += 2) { | |
1023 | u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i); | |
1024 | printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF)); | |
1025 | } | |
1026 | } | |
9cf7f247 | 1027 | rcmta0 = b43_shm_read32(dev, B43_SHM_RCMTA, |
66d2d089 | 1028 | ((index - pairwise_keys_start) * 2) + 0); |
9cf7f247 | 1029 | rcmta1 = b43_shm_read16(dev, B43_SHM_RCMTA, |
66d2d089 | 1030 | ((index - pairwise_keys_start) * 2) + 1); |
9cf7f247 MB |
1031 | *((__le32 *)(&mac[0])) = cpu_to_le32(rcmta0); |
1032 | *((__le16 *)(&mac[4])) = cpu_to_le16(rcmta1); | |
e91d8334 | 1033 | printk(" MAC: %pM", mac); |
9cf7f247 MB |
1034 | } else |
1035 | printk(" DEFAULT KEY"); | |
1036 | printk("\n"); | |
1037 | } | |
1038 | } | |
1039 | ||
e4d6b795 MB |
1040 | void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags) |
1041 | { | |
1042 | u32 macctl; | |
1043 | u16 ucstat; | |
1044 | bool hwps; | |
1045 | bool awake; | |
1046 | int i; | |
1047 | ||
1048 | B43_WARN_ON((ps_flags & B43_PS_ENABLED) && | |
1049 | (ps_flags & B43_PS_DISABLED)); | |
1050 | B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP)); | |
1051 | ||
1052 | if (ps_flags & B43_PS_ENABLED) { | |
1053 | hwps = 1; | |
1054 | } else if (ps_flags & B43_PS_DISABLED) { | |
1055 | hwps = 0; | |
1056 | } else { | |
1057 | //TODO: If powersave is not off and FIXME is not set and we are not in adhoc | |
1058 | // and thus is not an AP and we are associated, set bit 25 | |
1059 | } | |
1060 | if (ps_flags & B43_PS_AWAKE) { | |
1061 | awake = 1; | |
1062 | } else if (ps_flags & B43_PS_ASLEEP) { | |
1063 | awake = 0; | |
1064 | } else { | |
1065 | //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME, | |
1066 | // or we are associated, or FIXME, or the latest PS-Poll packet sent was | |
1067 | // successful, set bit26 | |
1068 | } | |
1069 | ||
1070 | /* FIXME: For now we force awake-on and hwps-off */ | |
1071 | hwps = 0; | |
1072 | awake = 1; | |
1073 | ||
1074 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
1075 | if (hwps) | |
1076 | macctl |= B43_MACCTL_HWPS; | |
1077 | else | |
1078 | macctl &= ~B43_MACCTL_HWPS; | |
1079 | if (awake) | |
1080 | macctl |= B43_MACCTL_AWAKE; | |
1081 | else | |
1082 | macctl &= ~B43_MACCTL_AWAKE; | |
1083 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
1084 | /* Commit write */ | |
1085 | b43_read32(dev, B43_MMIO_MACCTL); | |
1086 | if (awake && dev->dev->id.revision >= 5) { | |
1087 | /* Wait for the microcode to wake up. */ | |
1088 | for (i = 0; i < 100; i++) { | |
1089 | ucstat = b43_shm_read16(dev, B43_SHM_SHARED, | |
1090 | B43_SHM_SH_UCODESTAT); | |
1091 | if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP) | |
1092 | break; | |
1093 | udelay(10); | |
1094 | } | |
1095 | } | |
1096 | } | |
1097 | ||
e4d6b795 MB |
1098 | void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags) |
1099 | { | |
1100 | u32 tmslow; | |
1101 | u32 macctl; | |
1102 | ||
1103 | flags |= B43_TMSLOW_PHYCLKEN; | |
1104 | flags |= B43_TMSLOW_PHYRESET; | |
1105 | ssb_device_enable(dev->dev, flags); | |
1106 | msleep(2); /* Wait for the PLL to turn on. */ | |
1107 | ||
1108 | /* Now take the PHY out of Reset again */ | |
1109 | tmslow = ssb_read32(dev->dev, SSB_TMSLOW); | |
1110 | tmslow |= SSB_TMSLOW_FGC; | |
1111 | tmslow &= ~B43_TMSLOW_PHYRESET; | |
1112 | ssb_write32(dev->dev, SSB_TMSLOW, tmslow); | |
1113 | ssb_read32(dev->dev, SSB_TMSLOW); /* flush */ | |
1114 | msleep(1); | |
1115 | tmslow &= ~SSB_TMSLOW_FGC; | |
1116 | ssb_write32(dev->dev, SSB_TMSLOW, tmslow); | |
1117 | ssb_read32(dev->dev, SSB_TMSLOW); /* flush */ | |
1118 | msleep(1); | |
1119 | ||
fb11137a MB |
1120 | /* Turn Analog ON, but only if we already know the PHY-type. |
1121 | * This protects against very early setup where we don't know the | |
1122 | * PHY-type, yet. wireless_core_reset will be called once again later, | |
1123 | * when we know the PHY-type. */ | |
1124 | if (dev->phy.ops) | |
cb24f57f | 1125 | dev->phy.ops->switch_analog(dev, 1); |
e4d6b795 MB |
1126 | |
1127 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
1128 | macctl &= ~B43_MACCTL_GMODE; | |
1129 | if (flags & B43_TMSLOW_GMODE) | |
1130 | macctl |= B43_MACCTL_GMODE; | |
1131 | macctl |= B43_MACCTL_IHR_ENABLED; | |
1132 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
1133 | } | |
1134 | ||
1135 | static void handle_irq_transmit_status(struct b43_wldev *dev) | |
1136 | { | |
1137 | u32 v0, v1; | |
1138 | u16 tmp; | |
1139 | struct b43_txstatus stat; | |
1140 | ||
1141 | while (1) { | |
1142 | v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0); | |
1143 | if (!(v0 & 0x00000001)) | |
1144 | break; | |
1145 | v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1); | |
1146 | ||
1147 | stat.cookie = (v0 >> 16); | |
1148 | stat.seq = (v1 & 0x0000FFFF); | |
1149 | stat.phy_stat = ((v1 & 0x00FF0000) >> 16); | |
1150 | tmp = (v0 & 0x0000FFFF); | |
1151 | stat.frame_count = ((tmp & 0xF000) >> 12); | |
1152 | stat.rts_count = ((tmp & 0x0F00) >> 8); | |
1153 | stat.supp_reason = ((tmp & 0x001C) >> 2); | |
1154 | stat.pm_indicated = !!(tmp & 0x0080); | |
1155 | stat.intermediate = !!(tmp & 0x0040); | |
1156 | stat.for_ampdu = !!(tmp & 0x0020); | |
1157 | stat.acked = !!(tmp & 0x0002); | |
1158 | ||
1159 | b43_handle_txstatus(dev, &stat); | |
1160 | } | |
1161 | } | |
1162 | ||
1163 | static void drain_txstatus_queue(struct b43_wldev *dev) | |
1164 | { | |
1165 | u32 dummy; | |
1166 | ||
1167 | if (dev->dev->id.revision < 5) | |
1168 | return; | |
1169 | /* Read all entries from the microcode TXstatus FIFO | |
1170 | * and throw them away. | |
1171 | */ | |
1172 | while (1) { | |
1173 | dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0); | |
1174 | if (!(dummy & 0x00000001)) | |
1175 | break; | |
1176 | dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1); | |
1177 | } | |
1178 | } | |
1179 | ||
1180 | static u32 b43_jssi_read(struct b43_wldev *dev) | |
1181 | { | |
1182 | u32 val = 0; | |
1183 | ||
1184 | val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A); | |
1185 | val <<= 16; | |
1186 | val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088); | |
1187 | ||
1188 | return val; | |
1189 | } | |
1190 | ||
1191 | static void b43_jssi_write(struct b43_wldev *dev, u32 jssi) | |
1192 | { | |
1193 | b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF)); | |
1194 | b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16); | |
1195 | } | |
1196 | ||
1197 | static void b43_generate_noise_sample(struct b43_wldev *dev) | |
1198 | { | |
1199 | b43_jssi_write(dev, 0x7F7F7F7F); | |
aa6c7ae2 MB |
1200 | b43_write32(dev, B43_MMIO_MACCMD, |
1201 | b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE); | |
e4d6b795 MB |
1202 | } |
1203 | ||
1204 | static void b43_calculate_link_quality(struct b43_wldev *dev) | |
1205 | { | |
1206 | /* Top half of Link Quality calculation. */ | |
1207 | ||
ef1a628d MB |
1208 | if (dev->phy.type != B43_PHYTYPE_G) |
1209 | return; | |
e4d6b795 MB |
1210 | if (dev->noisecalc.calculation_running) |
1211 | return; | |
e4d6b795 MB |
1212 | dev->noisecalc.calculation_running = 1; |
1213 | dev->noisecalc.nr_samples = 0; | |
1214 | ||
1215 | b43_generate_noise_sample(dev); | |
1216 | } | |
1217 | ||
1218 | static void handle_irq_noise(struct b43_wldev *dev) | |
1219 | { | |
ef1a628d | 1220 | struct b43_phy_g *phy = dev->phy.g; |
e4d6b795 MB |
1221 | u16 tmp; |
1222 | u8 noise[4]; | |
1223 | u8 i, j; | |
1224 | s32 average; | |
1225 | ||
1226 | /* Bottom half of Link Quality calculation. */ | |
1227 | ||
ef1a628d MB |
1228 | if (dev->phy.type != B43_PHYTYPE_G) |
1229 | return; | |
1230 | ||
98a3b2fe MB |
1231 | /* Possible race condition: It might be possible that the user |
1232 | * changed to a different channel in the meantime since we | |
1233 | * started the calculation. We ignore that fact, since it's | |
1234 | * not really that much of a problem. The background noise is | |
1235 | * an estimation only anyway. Slightly wrong results will get damped | |
1236 | * by the averaging of the 8 sample rounds. Additionally the | |
1237 | * value is shortlived. So it will be replaced by the next noise | |
1238 | * calculation round soon. */ | |
1239 | ||
e4d6b795 | 1240 | B43_WARN_ON(!dev->noisecalc.calculation_running); |
1a09404a | 1241 | *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev)); |
e4d6b795 MB |
1242 | if (noise[0] == 0x7F || noise[1] == 0x7F || |
1243 | noise[2] == 0x7F || noise[3] == 0x7F) | |
1244 | goto generate_new; | |
1245 | ||
1246 | /* Get the noise samples. */ | |
1247 | B43_WARN_ON(dev->noisecalc.nr_samples >= 8); | |
1248 | i = dev->noisecalc.nr_samples; | |
cdbf0846 HH |
1249 | noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); |
1250 | noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); | |
1251 | noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); | |
1252 | noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); | |
e4d6b795 MB |
1253 | dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]]; |
1254 | dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]]; | |
1255 | dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]]; | |
1256 | dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]]; | |
1257 | dev->noisecalc.nr_samples++; | |
1258 | if (dev->noisecalc.nr_samples == 8) { | |
1259 | /* Calculate the Link Quality by the noise samples. */ | |
1260 | average = 0; | |
1261 | for (i = 0; i < 8; i++) { | |
1262 | for (j = 0; j < 4; j++) | |
1263 | average += dev->noisecalc.samples[i][j]; | |
1264 | } | |
1265 | average /= (8 * 4); | |
1266 | average *= 125; | |
1267 | average += 64; | |
1268 | average /= 128; | |
1269 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C); | |
1270 | tmp = (tmp / 128) & 0x1F; | |
1271 | if (tmp >= 8) | |
1272 | average += 2; | |
1273 | else | |
1274 | average -= 25; | |
1275 | if (tmp == 8) | |
1276 | average -= 72; | |
1277 | else | |
1278 | average -= 48; | |
1279 | ||
1280 | dev->stats.link_noise = average; | |
e4d6b795 MB |
1281 | dev->noisecalc.calculation_running = 0; |
1282 | return; | |
1283 | } | |
98a3b2fe | 1284 | generate_new: |
e4d6b795 MB |
1285 | b43_generate_noise_sample(dev); |
1286 | } | |
1287 | ||
1288 | static void handle_irq_tbtt_indication(struct b43_wldev *dev) | |
1289 | { | |
05c914fe | 1290 | if (b43_is_mode(dev->wl, NL80211_IFTYPE_AP)) { |
e4d6b795 MB |
1291 | ///TODO: PS TBTT |
1292 | } else { | |
1293 | if (1 /*FIXME: the last PSpoll frame was sent successfully */ ) | |
1294 | b43_power_saving_ctl_bits(dev, 0); | |
1295 | } | |
05c914fe | 1296 | if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) |
aa6c7ae2 | 1297 | dev->dfq_valid = 1; |
e4d6b795 MB |
1298 | } |
1299 | ||
1300 | static void handle_irq_atim_end(struct b43_wldev *dev) | |
1301 | { | |
aa6c7ae2 MB |
1302 | if (dev->dfq_valid) { |
1303 | b43_write32(dev, B43_MMIO_MACCMD, | |
1304 | b43_read32(dev, B43_MMIO_MACCMD) | |
1305 | | B43_MACCMD_DFQ_VALID); | |
1306 | dev->dfq_valid = 0; | |
1307 | } | |
e4d6b795 MB |
1308 | } |
1309 | ||
1310 | static void handle_irq_pmq(struct b43_wldev *dev) | |
1311 | { | |
1312 | u32 tmp; | |
1313 | ||
1314 | //TODO: AP mode. | |
1315 | ||
1316 | while (1) { | |
1317 | tmp = b43_read32(dev, B43_MMIO_PS_STATUS); | |
1318 | if (!(tmp & 0x00000008)) | |
1319 | break; | |
1320 | } | |
1321 | /* 16bit write is odd, but correct. */ | |
1322 | b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002); | |
1323 | } | |
1324 | ||
1325 | static void b43_write_template_common(struct b43_wldev *dev, | |
99da185a | 1326 | const u8 *data, u16 size, |
e4d6b795 MB |
1327 | u16 ram_offset, |
1328 | u16 shm_size_offset, u8 rate) | |
1329 | { | |
1330 | u32 i, tmp; | |
1331 | struct b43_plcp_hdr4 plcp; | |
1332 | ||
1333 | plcp.data = 0; | |
1334 | b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate); | |
1335 | b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data)); | |
1336 | ram_offset += sizeof(u32); | |
1337 | /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet. | |
1338 | * So leave the first two bytes of the next write blank. | |
1339 | */ | |
1340 | tmp = (u32) (data[0]) << 16; | |
1341 | tmp |= (u32) (data[1]) << 24; | |
1342 | b43_ram_write(dev, ram_offset, tmp); | |
1343 | ram_offset += sizeof(u32); | |
1344 | for (i = 2; i < size; i += sizeof(u32)) { | |
1345 | tmp = (u32) (data[i + 0]); | |
1346 | if (i + 1 < size) | |
1347 | tmp |= (u32) (data[i + 1]) << 8; | |
1348 | if (i + 2 < size) | |
1349 | tmp |= (u32) (data[i + 2]) << 16; | |
1350 | if (i + 3 < size) | |
1351 | tmp |= (u32) (data[i + 3]) << 24; | |
1352 | b43_ram_write(dev, ram_offset + i - 2, tmp); | |
1353 | } | |
1354 | b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset, | |
1355 | size + sizeof(struct b43_plcp_hdr6)); | |
1356 | } | |
1357 | ||
5042c507 MB |
1358 | /* Check if the use of the antenna that ieee80211 told us to |
1359 | * use is possible. This will fall back to DEFAULT. | |
1360 | * "antenna_nr" is the antenna identifier we got from ieee80211. */ | |
1361 | u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev, | |
1362 | u8 antenna_nr) | |
1363 | { | |
1364 | u8 antenna_mask; | |
1365 | ||
1366 | if (antenna_nr == 0) { | |
1367 | /* Zero means "use default antenna". That's always OK. */ | |
1368 | return 0; | |
1369 | } | |
1370 | ||
1371 | /* Get the mask of available antennas. */ | |
1372 | if (dev->phy.gmode) | |
1373 | antenna_mask = dev->dev->bus->sprom.ant_available_bg; | |
1374 | else | |
1375 | antenna_mask = dev->dev->bus->sprom.ant_available_a; | |
1376 | ||
1377 | if (!(antenna_mask & (1 << (antenna_nr - 1)))) { | |
1378 | /* This antenna is not available. Fall back to default. */ | |
1379 | return 0; | |
1380 | } | |
1381 | ||
1382 | return antenna_nr; | |
1383 | } | |
1384 | ||
5042c507 MB |
1385 | /* Convert a b43 antenna number value to the PHY TX control value. */ |
1386 | static u16 b43_antenna_to_phyctl(int antenna) | |
1387 | { | |
1388 | switch (antenna) { | |
1389 | case B43_ANTENNA0: | |
1390 | return B43_TXH_PHY_ANT0; | |
1391 | case B43_ANTENNA1: | |
1392 | return B43_TXH_PHY_ANT1; | |
1393 | case B43_ANTENNA2: | |
1394 | return B43_TXH_PHY_ANT2; | |
1395 | case B43_ANTENNA3: | |
1396 | return B43_TXH_PHY_ANT3; | |
64e368bf GS |
1397 | case B43_ANTENNA_AUTO0: |
1398 | case B43_ANTENNA_AUTO1: | |
5042c507 MB |
1399 | return B43_TXH_PHY_ANT01AUTO; |
1400 | } | |
1401 | B43_WARN_ON(1); | |
1402 | return 0; | |
1403 | } | |
1404 | ||
e4d6b795 MB |
1405 | static void b43_write_beacon_template(struct b43_wldev *dev, |
1406 | u16 ram_offset, | |
5042c507 | 1407 | u16 shm_size_offset) |
e4d6b795 | 1408 | { |
47f76ca3 | 1409 | unsigned int i, len, variable_len; |
e66fee6a MB |
1410 | const struct ieee80211_mgmt *bcn; |
1411 | const u8 *ie; | |
1412 | bool tim_found = 0; | |
5042c507 MB |
1413 | unsigned int rate; |
1414 | u16 ctl; | |
1415 | int antenna; | |
e039fa4a | 1416 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon); |
e4d6b795 | 1417 | |
e66fee6a MB |
1418 | bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data); |
1419 | len = min((size_t) dev->wl->current_beacon->len, | |
e4d6b795 | 1420 | 0x200 - sizeof(struct b43_plcp_hdr6)); |
e039fa4a | 1421 | rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value; |
e66fee6a MB |
1422 | |
1423 | b43_write_template_common(dev, (const u8 *)bcn, | |
e4d6b795 | 1424 | len, ram_offset, shm_size_offset, rate); |
e66fee6a | 1425 | |
5042c507 | 1426 | /* Write the PHY TX control parameters. */ |
0f4ac38b | 1427 | antenna = B43_ANTENNA_DEFAULT; |
5042c507 MB |
1428 | antenna = b43_antenna_to_phyctl(antenna); |
1429 | ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL); | |
1430 | /* We can't send beacons with short preamble. Would get PHY errors. */ | |
1431 | ctl &= ~B43_TXH_PHY_SHORTPRMBL; | |
1432 | ctl &= ~B43_TXH_PHY_ANT; | |
1433 | ctl &= ~B43_TXH_PHY_ENC; | |
1434 | ctl |= antenna; | |
1435 | if (b43_is_cck_rate(rate)) | |
1436 | ctl |= B43_TXH_PHY_ENC_CCK; | |
1437 | else | |
1438 | ctl |= B43_TXH_PHY_ENC_OFDM; | |
1439 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl); | |
1440 | ||
e66fee6a MB |
1441 | /* Find the position of the TIM and the DTIM_period value |
1442 | * and write them to SHM. */ | |
1443 | ie = bcn->u.beacon.variable; | |
47f76ca3 MB |
1444 | variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable); |
1445 | for (i = 0; i < variable_len - 2; ) { | |
e66fee6a MB |
1446 | uint8_t ie_id, ie_len; |
1447 | ||
1448 | ie_id = ie[i]; | |
1449 | ie_len = ie[i + 1]; | |
1450 | if (ie_id == 5) { | |
1451 | u16 tim_position; | |
1452 | u16 dtim_period; | |
1453 | /* This is the TIM Information Element */ | |
1454 | ||
1455 | /* Check whether the ie_len is in the beacon data range. */ | |
47f76ca3 | 1456 | if (variable_len < ie_len + 2 + i) |
e66fee6a MB |
1457 | break; |
1458 | /* A valid TIM is at least 4 bytes long. */ | |
1459 | if (ie_len < 4) | |
1460 | break; | |
1461 | tim_found = 1; | |
1462 | ||
1463 | tim_position = sizeof(struct b43_plcp_hdr6); | |
1464 | tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable); | |
1465 | tim_position += i; | |
1466 | ||
1467 | dtim_period = ie[i + 3]; | |
1468 | ||
1469 | b43_shm_write16(dev, B43_SHM_SHARED, | |
1470 | B43_SHM_SH_TIMBPOS, tim_position); | |
1471 | b43_shm_write16(dev, B43_SHM_SHARED, | |
1472 | B43_SHM_SH_DTIMPER, dtim_period); | |
1473 | break; | |
1474 | } | |
1475 | i += ie_len + 2; | |
1476 | } | |
1477 | if (!tim_found) { | |
04dea136 JB |
1478 | /* |
1479 | * If ucode wants to modify TIM do it behind the beacon, this | |
1480 | * will happen, for example, when doing mesh networking. | |
1481 | */ | |
1482 | b43_shm_write16(dev, B43_SHM_SHARED, | |
1483 | B43_SHM_SH_TIMBPOS, | |
1484 | len + sizeof(struct b43_plcp_hdr6)); | |
1485 | b43_shm_write16(dev, B43_SHM_SHARED, | |
1486 | B43_SHM_SH_DTIMPER, 0); | |
1487 | } | |
1488 | b43dbg(dev->wl, "Updated beacon template at 0x%x\n", ram_offset); | |
e4d6b795 MB |
1489 | } |
1490 | ||
6b4bec01 MB |
1491 | static void b43_upload_beacon0(struct b43_wldev *dev) |
1492 | { | |
1493 | struct b43_wl *wl = dev->wl; | |
1494 | ||
1495 | if (wl->beacon0_uploaded) | |
1496 | return; | |
1497 | b43_write_beacon_template(dev, 0x68, 0x18); | |
6b4bec01 MB |
1498 | wl->beacon0_uploaded = 1; |
1499 | } | |
1500 | ||
1501 | static void b43_upload_beacon1(struct b43_wldev *dev) | |
1502 | { | |
1503 | struct b43_wl *wl = dev->wl; | |
1504 | ||
1505 | if (wl->beacon1_uploaded) | |
1506 | return; | |
1507 | b43_write_beacon_template(dev, 0x468, 0x1A); | |
1508 | wl->beacon1_uploaded = 1; | |
1509 | } | |
1510 | ||
c97a4ccc MB |
1511 | static void handle_irq_beacon(struct b43_wldev *dev) |
1512 | { | |
1513 | struct b43_wl *wl = dev->wl; | |
1514 | u32 cmd, beacon0_valid, beacon1_valid; | |
1515 | ||
05c914fe JB |
1516 | if (!b43_is_mode(wl, NL80211_IFTYPE_AP) && |
1517 | !b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT)) | |
c97a4ccc MB |
1518 | return; |
1519 | ||
1520 | /* This is the bottom half of the asynchronous beacon update. */ | |
1521 | ||
1522 | /* Ignore interrupt in the future. */ | |
13790728 | 1523 | dev->irq_mask &= ~B43_IRQ_BEACON; |
c97a4ccc MB |
1524 | |
1525 | cmd = b43_read32(dev, B43_MMIO_MACCMD); | |
1526 | beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID); | |
1527 | beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID); | |
1528 | ||
1529 | /* Schedule interrupt manually, if busy. */ | |
1530 | if (beacon0_valid && beacon1_valid) { | |
1531 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON); | |
13790728 | 1532 | dev->irq_mask |= B43_IRQ_BEACON; |
c97a4ccc MB |
1533 | return; |
1534 | } | |
1535 | ||
6b4bec01 MB |
1536 | if (unlikely(wl->beacon_templates_virgin)) { |
1537 | /* We never uploaded a beacon before. | |
1538 | * Upload both templates now, but only mark one valid. */ | |
1539 | wl->beacon_templates_virgin = 0; | |
1540 | b43_upload_beacon0(dev); | |
1541 | b43_upload_beacon1(dev); | |
c97a4ccc MB |
1542 | cmd = b43_read32(dev, B43_MMIO_MACCMD); |
1543 | cmd |= B43_MACCMD_BEACON0_VALID; | |
1544 | b43_write32(dev, B43_MMIO_MACCMD, cmd); | |
6b4bec01 MB |
1545 | } else { |
1546 | if (!beacon0_valid) { | |
1547 | b43_upload_beacon0(dev); | |
1548 | cmd = b43_read32(dev, B43_MMIO_MACCMD); | |
1549 | cmd |= B43_MACCMD_BEACON0_VALID; | |
1550 | b43_write32(dev, B43_MMIO_MACCMD, cmd); | |
1551 | } else if (!beacon1_valid) { | |
1552 | b43_upload_beacon1(dev); | |
1553 | cmd = b43_read32(dev, B43_MMIO_MACCMD); | |
1554 | cmd |= B43_MACCMD_BEACON1_VALID; | |
1555 | b43_write32(dev, B43_MMIO_MACCMD, cmd); | |
c97a4ccc | 1556 | } |
c97a4ccc MB |
1557 | } |
1558 | } | |
1559 | ||
36dbd954 MB |
1560 | static void b43_do_beacon_update_trigger_work(struct b43_wldev *dev) |
1561 | { | |
1562 | u32 old_irq_mask = dev->irq_mask; | |
1563 | ||
1564 | /* update beacon right away or defer to irq */ | |
1565 | handle_irq_beacon(dev); | |
1566 | if (old_irq_mask != dev->irq_mask) { | |
1567 | /* The handler updated the IRQ mask. */ | |
1568 | B43_WARN_ON(!dev->irq_mask); | |
1569 | if (b43_read32(dev, B43_MMIO_GEN_IRQ_MASK)) { | |
1570 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); | |
1571 | } else { | |
1572 | /* Device interrupts are currently disabled. That means | |
1573 | * we just ran the hardirq handler and scheduled the | |
1574 | * IRQ thread. The thread will write the IRQ mask when | |
1575 | * it finished, so there's nothing to do here. Writing | |
1576 | * the mask _here_ would incorrectly re-enable IRQs. */ | |
1577 | } | |
1578 | } | |
1579 | } | |
1580 | ||
a82d9922 MB |
1581 | static void b43_beacon_update_trigger_work(struct work_struct *work) |
1582 | { | |
1583 | struct b43_wl *wl = container_of(work, struct b43_wl, | |
1584 | beacon_update_trigger); | |
1585 | struct b43_wldev *dev; | |
1586 | ||
1587 | mutex_lock(&wl->mutex); | |
1588 | dev = wl->current_dev; | |
1589 | if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) { | |
36dbd954 MB |
1590 | if (0 /*FIXME dev->dev->bus->bustype == SSB_BUSTYPE_SDIO*/) { |
1591 | /* wl->mutex is enough. */ | |
1592 | b43_do_beacon_update_trigger_work(dev); | |
1593 | mmiowb(); | |
1594 | } else { | |
1595 | spin_lock_irq(&wl->hardirq_lock); | |
1596 | b43_do_beacon_update_trigger_work(dev); | |
1597 | mmiowb(); | |
1598 | spin_unlock_irq(&wl->hardirq_lock); | |
1599 | } | |
a82d9922 MB |
1600 | } |
1601 | mutex_unlock(&wl->mutex); | |
1602 | } | |
1603 | ||
d4df6f1a | 1604 | /* Asynchronously update the packet templates in template RAM. |
36dbd954 | 1605 | * Locking: Requires wl->mutex to be locked. */ |
9d139c81 | 1606 | static void b43_update_templates(struct b43_wl *wl) |
e4d6b795 | 1607 | { |
9d139c81 JB |
1608 | struct sk_buff *beacon; |
1609 | ||
e66fee6a MB |
1610 | /* This is the top half of the ansynchronous beacon update. |
1611 | * The bottom half is the beacon IRQ. | |
1612 | * Beacon update must be asynchronous to avoid sending an | |
1613 | * invalid beacon. This can happen for example, if the firmware | |
1614 | * transmits a beacon while we are updating it. */ | |
e4d6b795 | 1615 | |
9d139c81 JB |
1616 | /* We could modify the existing beacon and set the aid bit in |
1617 | * the TIM field, but that would probably require resizing and | |
1618 | * moving of data within the beacon template. | |
1619 | * Simply request a new beacon and let mac80211 do the hard work. */ | |
1620 | beacon = ieee80211_beacon_get(wl->hw, wl->vif); | |
1621 | if (unlikely(!beacon)) | |
1622 | return; | |
1623 | ||
e66fee6a MB |
1624 | if (wl->current_beacon) |
1625 | dev_kfree_skb_any(wl->current_beacon); | |
1626 | wl->current_beacon = beacon; | |
1627 | wl->beacon0_uploaded = 0; | |
1628 | wl->beacon1_uploaded = 0; | |
42935eca | 1629 | ieee80211_queue_work(wl->hw, &wl->beacon_update_trigger); |
e4d6b795 MB |
1630 | } |
1631 | ||
e4d6b795 MB |
1632 | static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int) |
1633 | { | |
1634 | b43_time_lock(dev); | |
1635 | if (dev->dev->id.revision >= 3) { | |
a82d9922 MB |
1636 | b43_write32(dev, B43_MMIO_TSF_CFP_REP, (beacon_int << 16)); |
1637 | b43_write32(dev, B43_MMIO_TSF_CFP_START, (beacon_int << 10)); | |
e4d6b795 MB |
1638 | } else { |
1639 | b43_write16(dev, 0x606, (beacon_int >> 6)); | |
1640 | b43_write16(dev, 0x610, beacon_int); | |
1641 | } | |
1642 | b43_time_unlock(dev); | |
a82d9922 | 1643 | b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int); |
e4d6b795 MB |
1644 | } |
1645 | ||
afa83e23 MB |
1646 | static void b43_handle_firmware_panic(struct b43_wldev *dev) |
1647 | { | |
1648 | u16 reason; | |
1649 | ||
1650 | /* Read the register that contains the reason code for the panic. */ | |
1651 | reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_FWPANIC_REASON_REG); | |
1652 | b43err(dev->wl, "Whoopsy, firmware panic! Reason: %u\n", reason); | |
1653 | ||
1654 | switch (reason) { | |
1655 | default: | |
1656 | b43dbg(dev->wl, "The panic reason is unknown.\n"); | |
1657 | /* fallthrough */ | |
1658 | case B43_FWPANIC_DIE: | |
1659 | /* Do not restart the controller or firmware. | |
1660 | * The device is nonfunctional from now on. | |
1661 | * Restarting would result in this panic to trigger again, | |
1662 | * so we avoid that recursion. */ | |
1663 | break; | |
1664 | case B43_FWPANIC_RESTART: | |
1665 | b43_controller_restart(dev, "Microcode panic"); | |
1666 | break; | |
1667 | } | |
1668 | } | |
1669 | ||
e4d6b795 MB |
1670 | static void handle_irq_ucode_debug(struct b43_wldev *dev) |
1671 | { | |
e48b0eeb | 1672 | unsigned int i, cnt; |
53c06856 | 1673 | u16 reason, marker_id, marker_line; |
e48b0eeb MB |
1674 | __le16 *buf; |
1675 | ||
1676 | /* The proprietary firmware doesn't have this IRQ. */ | |
1677 | if (!dev->fw.opensource) | |
1678 | return; | |
1679 | ||
afa83e23 MB |
1680 | /* Read the register that contains the reason code for this IRQ. */ |
1681 | reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_DEBUGIRQ_REASON_REG); | |
1682 | ||
e48b0eeb MB |
1683 | switch (reason) { |
1684 | case B43_DEBUGIRQ_PANIC: | |
afa83e23 | 1685 | b43_handle_firmware_panic(dev); |
e48b0eeb MB |
1686 | break; |
1687 | case B43_DEBUGIRQ_DUMP_SHM: | |
1688 | if (!B43_DEBUG) | |
1689 | break; /* Only with driver debugging enabled. */ | |
1690 | buf = kmalloc(4096, GFP_ATOMIC); | |
1691 | if (!buf) { | |
1692 | b43dbg(dev->wl, "SHM-dump: Failed to allocate memory\n"); | |
1693 | goto out; | |
1694 | } | |
1695 | for (i = 0; i < 4096; i += 2) { | |
1696 | u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, i); | |
1697 | buf[i / 2] = cpu_to_le16(tmp); | |
1698 | } | |
1699 | b43info(dev->wl, "Shared memory dump:\n"); | |
1700 | print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, | |
1701 | 16, 2, buf, 4096, 1); | |
1702 | kfree(buf); | |
1703 | break; | |
1704 | case B43_DEBUGIRQ_DUMP_REGS: | |
1705 | if (!B43_DEBUG) | |
1706 | break; /* Only with driver debugging enabled. */ | |
1707 | b43info(dev->wl, "Microcode register dump:\n"); | |
1708 | for (i = 0, cnt = 0; i < 64; i++) { | |
1709 | u16 tmp = b43_shm_read16(dev, B43_SHM_SCRATCH, i); | |
1710 | if (cnt == 0) | |
1711 | printk(KERN_INFO); | |
1712 | printk("r%02u: 0x%04X ", i, tmp); | |
1713 | cnt++; | |
1714 | if (cnt == 6) { | |
1715 | printk("\n"); | |
1716 | cnt = 0; | |
1717 | } | |
1718 | } | |
1719 | printk("\n"); | |
1720 | break; | |
53c06856 MB |
1721 | case B43_DEBUGIRQ_MARKER: |
1722 | if (!B43_DEBUG) | |
1723 | break; /* Only with driver debugging enabled. */ | |
1724 | marker_id = b43_shm_read16(dev, B43_SHM_SCRATCH, | |
1725 | B43_MARKER_ID_REG); | |
1726 | marker_line = b43_shm_read16(dev, B43_SHM_SCRATCH, | |
1727 | B43_MARKER_LINE_REG); | |
1728 | b43info(dev->wl, "The firmware just executed the MARKER(%u) " | |
1729 | "at line number %u\n", | |
1730 | marker_id, marker_line); | |
1731 | break; | |
e48b0eeb MB |
1732 | default: |
1733 | b43dbg(dev->wl, "Debug-IRQ triggered for unknown reason: %u\n", | |
1734 | reason); | |
1735 | } | |
1736 | out: | |
afa83e23 MB |
1737 | /* Acknowledge the debug-IRQ, so the firmware can continue. */ |
1738 | b43_shm_write16(dev, B43_SHM_SCRATCH, | |
1739 | B43_DEBUGIRQ_REASON_REG, B43_DEBUGIRQ_ACK); | |
e4d6b795 MB |
1740 | } |
1741 | ||
36dbd954 | 1742 | static void b43_do_interrupt_thread(struct b43_wldev *dev) |
e4d6b795 MB |
1743 | { |
1744 | u32 reason; | |
1745 | u32 dma_reason[ARRAY_SIZE(dev->dma_reason)]; | |
1746 | u32 merged_dma_reason = 0; | |
21954c36 | 1747 | int i; |
e4d6b795 | 1748 | |
36dbd954 MB |
1749 | if (unlikely(b43_status(dev) != B43_STAT_STARTED)) |
1750 | return; | |
e4d6b795 MB |
1751 | |
1752 | reason = dev->irq_reason; | |
1753 | for (i = 0; i < ARRAY_SIZE(dma_reason); i++) { | |
1754 | dma_reason[i] = dev->dma_reason[i]; | |
1755 | merged_dma_reason |= dma_reason[i]; | |
1756 | } | |
1757 | ||
1758 | if (unlikely(reason & B43_IRQ_MAC_TXERR)) | |
1759 | b43err(dev->wl, "MAC transmission error\n"); | |
1760 | ||
00e0b8cb | 1761 | if (unlikely(reason & B43_IRQ_PHY_TXERR)) { |
e4d6b795 | 1762 | b43err(dev->wl, "PHY transmission error\n"); |
00e0b8cb SB |
1763 | rmb(); |
1764 | if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) { | |
1765 | atomic_set(&dev->phy.txerr_cnt, | |
1766 | B43_PHY_TX_BADNESS_LIMIT); | |
1767 | b43err(dev->wl, "Too many PHY TX errors, " | |
1768 | "restarting the controller\n"); | |
1769 | b43_controller_restart(dev, "PHY TX errors"); | |
1770 | } | |
1771 | } | |
e4d6b795 MB |
1772 | |
1773 | if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK | | |
1774 | B43_DMAIRQ_NONFATALMASK))) { | |
1775 | if (merged_dma_reason & B43_DMAIRQ_FATALMASK) { | |
1776 | b43err(dev->wl, "Fatal DMA error: " | |
1777 | "0x%08X, 0x%08X, 0x%08X, " | |
1778 | "0x%08X, 0x%08X, 0x%08X\n", | |
1779 | dma_reason[0], dma_reason[1], | |
1780 | dma_reason[2], dma_reason[3], | |
1781 | dma_reason[4], dma_reason[5]); | |
1782 | b43_controller_restart(dev, "DMA error"); | |
e4d6b795 MB |
1783 | return; |
1784 | } | |
1785 | if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) { | |
1786 | b43err(dev->wl, "DMA error: " | |
1787 | "0x%08X, 0x%08X, 0x%08X, " | |
1788 | "0x%08X, 0x%08X, 0x%08X\n", | |
1789 | dma_reason[0], dma_reason[1], | |
1790 | dma_reason[2], dma_reason[3], | |
1791 | dma_reason[4], dma_reason[5]); | |
1792 | } | |
1793 | } | |
1794 | ||
1795 | if (unlikely(reason & B43_IRQ_UCODE_DEBUG)) | |
1796 | handle_irq_ucode_debug(dev); | |
1797 | if (reason & B43_IRQ_TBTT_INDI) | |
1798 | handle_irq_tbtt_indication(dev); | |
1799 | if (reason & B43_IRQ_ATIM_END) | |
1800 | handle_irq_atim_end(dev); | |
1801 | if (reason & B43_IRQ_BEACON) | |
1802 | handle_irq_beacon(dev); | |
1803 | if (reason & B43_IRQ_PMQ) | |
1804 | handle_irq_pmq(dev); | |
21954c36 MB |
1805 | if (reason & B43_IRQ_TXFIFO_FLUSH_OK) |
1806 | ;/* TODO */ | |
1807 | if (reason & B43_IRQ_NOISESAMPLE_OK) | |
e4d6b795 MB |
1808 | handle_irq_noise(dev); |
1809 | ||
1810 | /* Check the DMA reason registers for received data. */ | |
5100d5ac MB |
1811 | if (dma_reason[0] & B43_DMAIRQ_RX_DONE) { |
1812 | if (b43_using_pio_transfers(dev)) | |
1813 | b43_pio_rx(dev->pio.rx_queue); | |
1814 | else | |
1815 | b43_dma_rx(dev->dma.rx_ring); | |
1816 | } | |
e4d6b795 MB |
1817 | B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE); |
1818 | B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE); | |
b27faf8e | 1819 | B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE); |
e4d6b795 MB |
1820 | B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE); |
1821 | B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE); | |
1822 | ||
21954c36 | 1823 | if (reason & B43_IRQ_TX_OK) |
e4d6b795 | 1824 | handle_irq_transmit_status(dev); |
e4d6b795 | 1825 | |
36dbd954 | 1826 | /* Re-enable interrupts on the device by restoring the current interrupt mask. */ |
13790728 | 1827 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); |
e4d6b795 MB |
1828 | } |
1829 | ||
36dbd954 MB |
1830 | /* Interrupt thread handler. Handles device interrupts in thread context. */ |
1831 | static irqreturn_t b43_interrupt_thread_handler(int irq, void *dev_id) | |
e4d6b795 | 1832 | { |
36dbd954 | 1833 | struct b43_wldev *dev = dev_id; |
e4d6b795 | 1834 | |
36dbd954 MB |
1835 | mutex_lock(&dev->wl->mutex); |
1836 | b43_do_interrupt_thread(dev); | |
1837 | mmiowb(); | |
1838 | mutex_unlock(&dev->wl->mutex); | |
1839 | ||
1840 | return IRQ_HANDLED; | |
e4d6b795 MB |
1841 | } |
1842 | ||
36dbd954 | 1843 | static irqreturn_t b43_do_interrupt(struct b43_wldev *dev) |
e4d6b795 | 1844 | { |
e4d6b795 MB |
1845 | u32 reason; |
1846 | ||
36dbd954 MB |
1847 | /* This code runs under wl->hardirq_lock, but _only_ on non-SDIO busses. |
1848 | * On SDIO, this runs under wl->mutex. */ | |
e4d6b795 | 1849 | |
e4d6b795 MB |
1850 | reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); |
1851 | if (reason == 0xffffffff) /* shared IRQ */ | |
36dbd954 | 1852 | return IRQ_NONE; |
13790728 | 1853 | reason &= dev->irq_mask; |
e4d6b795 | 1854 | if (!reason) |
36dbd954 | 1855 | return IRQ_HANDLED; |
e4d6b795 MB |
1856 | |
1857 | dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON) | |
1858 | & 0x0001DC00; | |
1859 | dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON) | |
1860 | & 0x0000DC00; | |
1861 | dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON) | |
1862 | & 0x0000DC00; | |
1863 | dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON) | |
1864 | & 0x0001DC00; | |
1865 | dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON) | |
1866 | & 0x0000DC00; | |
13790728 | 1867 | /* Unused ring |
e4d6b795 MB |
1868 | dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON) |
1869 | & 0x0000DC00; | |
13790728 | 1870 | */ |
e4d6b795 | 1871 | |
36dbd954 MB |
1872 | /* ACK the interrupt. */ |
1873 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason); | |
1874 | b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]); | |
1875 | b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]); | |
1876 | b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]); | |
1877 | b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]); | |
1878 | b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]); | |
1879 | /* Unused ring | |
1880 | b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]); | |
1881 | */ | |
1882 | ||
1883 | /* Disable IRQs on the device. The IRQ thread handler will re-enable them. */ | |
13790728 | 1884 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0); |
36dbd954 | 1885 | /* Save the reason bitmasks for the IRQ thread handler. */ |
e4d6b795 | 1886 | dev->irq_reason = reason; |
36dbd954 MB |
1887 | |
1888 | return IRQ_WAKE_THREAD; | |
1889 | } | |
1890 | ||
1891 | /* Interrupt handler top-half. This runs with interrupts disabled. */ | |
1892 | static irqreturn_t b43_interrupt_handler(int irq, void *dev_id) | |
1893 | { | |
1894 | struct b43_wldev *dev = dev_id; | |
1895 | irqreturn_t ret; | |
1896 | ||
1897 | if (unlikely(b43_status(dev) < B43_STAT_STARTED)) | |
1898 | return IRQ_NONE; | |
1899 | ||
1900 | spin_lock(&dev->wl->hardirq_lock); | |
1901 | ret = b43_do_interrupt(dev); | |
e4d6b795 | 1902 | mmiowb(); |
36dbd954 | 1903 | spin_unlock(&dev->wl->hardirq_lock); |
e4d6b795 MB |
1904 | |
1905 | return ret; | |
1906 | } | |
1907 | ||
1a9f5093 | 1908 | void b43_do_release_fw(struct b43_firmware_file *fw) |
61cb5dd6 MB |
1909 | { |
1910 | release_firmware(fw->data); | |
1911 | fw->data = NULL; | |
1912 | fw->filename = NULL; | |
1913 | } | |
1914 | ||
e4d6b795 MB |
1915 | static void b43_release_firmware(struct b43_wldev *dev) |
1916 | { | |
1a9f5093 MB |
1917 | b43_do_release_fw(&dev->fw.ucode); |
1918 | b43_do_release_fw(&dev->fw.pcm); | |
1919 | b43_do_release_fw(&dev->fw.initvals); | |
1920 | b43_do_release_fw(&dev->fw.initvals_band); | |
e4d6b795 MB |
1921 | } |
1922 | ||
eb189d8b | 1923 | static void b43_print_fw_helptext(struct b43_wl *wl, bool error) |
e4d6b795 | 1924 | { |
fc68ed4f HE |
1925 | const char text[] = |
1926 | "You must go to " \ | |
1927 | "http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware " \ | |
1928 | "and download the correct firmware for this driver version. " \ | |
1929 | "Please carefully read all instructions on this website.\n"; | |
eb189d8b | 1930 | |
eb189d8b MB |
1931 | if (error) |
1932 | b43err(wl, text); | |
1933 | else | |
1934 | b43warn(wl, text); | |
e4d6b795 MB |
1935 | } |
1936 | ||
1a9f5093 MB |
1937 | int b43_do_request_fw(struct b43_request_fw_context *ctx, |
1938 | const char *name, | |
1939 | struct b43_firmware_file *fw) | |
e4d6b795 | 1940 | { |
61cb5dd6 | 1941 | const struct firmware *blob; |
e4d6b795 MB |
1942 | struct b43_fw_header *hdr; |
1943 | u32 size; | |
1944 | int err; | |
1945 | ||
61cb5dd6 MB |
1946 | if (!name) { |
1947 | /* Don't fetch anything. Free possibly cached firmware. */ | |
1a9f5093 MB |
1948 | /* FIXME: We should probably keep it anyway, to save some headache |
1949 | * on suspend/resume with multiband devices. */ | |
1950 | b43_do_release_fw(fw); | |
e4d6b795 | 1951 | return 0; |
61cb5dd6 MB |
1952 | } |
1953 | if (fw->filename) { | |
1a9f5093 MB |
1954 | if ((fw->type == ctx->req_type) && |
1955 | (strcmp(fw->filename, name) == 0)) | |
61cb5dd6 MB |
1956 | return 0; /* Already have this fw. */ |
1957 | /* Free the cached firmware first. */ | |
1a9f5093 MB |
1958 | /* FIXME: We should probably do this later after we successfully |
1959 | * got the new fw. This could reduce headache with multiband devices. | |
1960 | * We could also redesign this to cache the firmware for all possible | |
1961 | * bands all the time. */ | |
1962 | b43_do_release_fw(fw); | |
61cb5dd6 | 1963 | } |
e4d6b795 | 1964 | |
1a9f5093 MB |
1965 | switch (ctx->req_type) { |
1966 | case B43_FWTYPE_PROPRIETARY: | |
1967 | snprintf(ctx->fwname, sizeof(ctx->fwname), | |
1968 | "b43%s/%s.fw", | |
1969 | modparam_fwpostfix, name); | |
1970 | break; | |
1971 | case B43_FWTYPE_OPENSOURCE: | |
1972 | snprintf(ctx->fwname, sizeof(ctx->fwname), | |
1973 | "b43-open%s/%s.fw", | |
1974 | modparam_fwpostfix, name); | |
1975 | break; | |
1976 | default: | |
1977 | B43_WARN_ON(1); | |
1978 | return -ENOSYS; | |
1979 | } | |
1980 | err = request_firmware(&blob, ctx->fwname, ctx->dev->dev->dev); | |
68217832 | 1981 | if (err == -ENOENT) { |
1a9f5093 MB |
1982 | snprintf(ctx->errors[ctx->req_type], |
1983 | sizeof(ctx->errors[ctx->req_type]), | |
1984 | "Firmware file \"%s\" not found\n", ctx->fwname); | |
68217832 MB |
1985 | return err; |
1986 | } else if (err) { | |
1a9f5093 MB |
1987 | snprintf(ctx->errors[ctx->req_type], |
1988 | sizeof(ctx->errors[ctx->req_type]), | |
1989 | "Firmware file \"%s\" request failed (err=%d)\n", | |
1990 | ctx->fwname, err); | |
e4d6b795 MB |
1991 | return err; |
1992 | } | |
61cb5dd6 | 1993 | if (blob->size < sizeof(struct b43_fw_header)) |
e4d6b795 | 1994 | goto err_format; |
61cb5dd6 | 1995 | hdr = (struct b43_fw_header *)(blob->data); |
e4d6b795 MB |
1996 | switch (hdr->type) { |
1997 | case B43_FW_TYPE_UCODE: | |
1998 | case B43_FW_TYPE_PCM: | |
1999 | size = be32_to_cpu(hdr->size); | |
61cb5dd6 | 2000 | if (size != blob->size - sizeof(struct b43_fw_header)) |
e4d6b795 MB |
2001 | goto err_format; |
2002 | /* fallthrough */ | |
2003 | case B43_FW_TYPE_IV: | |
2004 | if (hdr->ver != 1) | |
2005 | goto err_format; | |
2006 | break; | |
2007 | default: | |
2008 | goto err_format; | |
2009 | } | |
2010 | ||
61cb5dd6 MB |
2011 | fw->data = blob; |
2012 | fw->filename = name; | |
1a9f5093 | 2013 | fw->type = ctx->req_type; |
61cb5dd6 MB |
2014 | |
2015 | return 0; | |
e4d6b795 MB |
2016 | |
2017 | err_format: | |
1a9f5093 MB |
2018 | snprintf(ctx->errors[ctx->req_type], |
2019 | sizeof(ctx->errors[ctx->req_type]), | |
2020 | "Firmware file \"%s\" format error.\n", ctx->fwname); | |
61cb5dd6 MB |
2021 | release_firmware(blob); |
2022 | ||
e4d6b795 MB |
2023 | return -EPROTO; |
2024 | } | |
2025 | ||
1a9f5093 | 2026 | static int b43_try_request_fw(struct b43_request_fw_context *ctx) |
e4d6b795 | 2027 | { |
1a9f5093 MB |
2028 | struct b43_wldev *dev = ctx->dev; |
2029 | struct b43_firmware *fw = &ctx->dev->fw; | |
2030 | const u8 rev = ctx->dev->dev->id.revision; | |
e4d6b795 MB |
2031 | const char *filename; |
2032 | u32 tmshigh; | |
2033 | int err; | |
2034 | ||
61cb5dd6 | 2035 | /* Get microcode */ |
e4d6b795 | 2036 | tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH); |
61cb5dd6 MB |
2037 | if ((rev >= 5) && (rev <= 10)) |
2038 | filename = "ucode5"; | |
2039 | else if ((rev >= 11) && (rev <= 12)) | |
2040 | filename = "ucode11"; | |
759b973b | 2041 | else if (rev == 13) |
61cb5dd6 | 2042 | filename = "ucode13"; |
759b973b GS |
2043 | else if (rev == 14) |
2044 | filename = "ucode14"; | |
2045 | else if (rev >= 15) | |
2046 | filename = "ucode15"; | |
61cb5dd6 MB |
2047 | else |
2048 | goto err_no_ucode; | |
1a9f5093 | 2049 | err = b43_do_request_fw(ctx, filename, &fw->ucode); |
61cb5dd6 MB |
2050 | if (err) |
2051 | goto err_load; | |
2052 | ||
2053 | /* Get PCM code */ | |
2054 | if ((rev >= 5) && (rev <= 10)) | |
2055 | filename = "pcm5"; | |
2056 | else if (rev >= 11) | |
2057 | filename = NULL; | |
2058 | else | |
2059 | goto err_no_pcm; | |
68217832 | 2060 | fw->pcm_request_failed = 0; |
1a9f5093 | 2061 | err = b43_do_request_fw(ctx, filename, &fw->pcm); |
68217832 MB |
2062 | if (err == -ENOENT) { |
2063 | /* We did not find a PCM file? Not fatal, but | |
2064 | * core rev <= 10 must do without hwcrypto then. */ | |
2065 | fw->pcm_request_failed = 1; | |
2066 | } else if (err) | |
61cb5dd6 MB |
2067 | goto err_load; |
2068 | ||
2069 | /* Get initvals */ | |
2070 | switch (dev->phy.type) { | |
2071 | case B43_PHYTYPE_A: | |
2072 | if ((rev >= 5) && (rev <= 10)) { | |
2073 | if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY) | |
2074 | filename = "a0g1initvals5"; | |
2075 | else | |
2076 | filename = "a0g0initvals5"; | |
2077 | } else | |
2078 | goto err_no_initvals; | |
2079 | break; | |
2080 | case B43_PHYTYPE_G: | |
e4d6b795 | 2081 | if ((rev >= 5) && (rev <= 10)) |
61cb5dd6 | 2082 | filename = "b0g0initvals5"; |
e4d6b795 | 2083 | else if (rev >= 13) |
e9304882 | 2084 | filename = "b0g0initvals13"; |
e4d6b795 | 2085 | else |
61cb5dd6 MB |
2086 | goto err_no_initvals; |
2087 | break; | |
2088 | case B43_PHYTYPE_N: | |
2089 | if ((rev >= 11) && (rev <= 12)) | |
2090 | filename = "n0initvals11"; | |
2091 | else | |
2092 | goto err_no_initvals; | |
2093 | break; | |
759b973b GS |
2094 | case B43_PHYTYPE_LP: |
2095 | if (rev == 13) | |
2096 | filename = "lp0initvals13"; | |
2097 | else if (rev == 14) | |
2098 | filename = "lp0initvals14"; | |
2099 | else if (rev >= 15) | |
2100 | filename = "lp0initvals15"; | |
2101 | else | |
2102 | goto err_no_initvals; | |
2103 | break; | |
61cb5dd6 MB |
2104 | default: |
2105 | goto err_no_initvals; | |
e4d6b795 | 2106 | } |
1a9f5093 | 2107 | err = b43_do_request_fw(ctx, filename, &fw->initvals); |
61cb5dd6 MB |
2108 | if (err) |
2109 | goto err_load; | |
2110 | ||
2111 | /* Get bandswitch initvals */ | |
2112 | switch (dev->phy.type) { | |
2113 | case B43_PHYTYPE_A: | |
2114 | if ((rev >= 5) && (rev <= 10)) { | |
2115 | if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY) | |
2116 | filename = "a0g1bsinitvals5"; | |
2117 | else | |
2118 | filename = "a0g0bsinitvals5"; | |
2119 | } else if (rev >= 11) | |
2120 | filename = NULL; | |
2121 | else | |
2122 | goto err_no_initvals; | |
2123 | break; | |
2124 | case B43_PHYTYPE_G: | |
e4d6b795 | 2125 | if ((rev >= 5) && (rev <= 10)) |
61cb5dd6 | 2126 | filename = "b0g0bsinitvals5"; |
e4d6b795 MB |
2127 | else if (rev >= 11) |
2128 | filename = NULL; | |
2129 | else | |
e4d6b795 | 2130 | goto err_no_initvals; |
61cb5dd6 MB |
2131 | break; |
2132 | case B43_PHYTYPE_N: | |
2133 | if ((rev >= 11) && (rev <= 12)) | |
2134 | filename = "n0bsinitvals11"; | |
2135 | else | |
e4d6b795 | 2136 | goto err_no_initvals; |
61cb5dd6 | 2137 | break; |
759b973b GS |
2138 | case B43_PHYTYPE_LP: |
2139 | if (rev == 13) | |
2140 | filename = "lp0bsinitvals13"; | |
2141 | else if (rev == 14) | |
2142 | filename = "lp0bsinitvals14"; | |
2143 | else if (rev >= 15) | |
2144 | filename = "lp0bsinitvals15"; | |
2145 | else | |
2146 | goto err_no_initvals; | |
2147 | break; | |
61cb5dd6 MB |
2148 | default: |
2149 | goto err_no_initvals; | |
e4d6b795 | 2150 | } |
1a9f5093 | 2151 | err = b43_do_request_fw(ctx, filename, &fw->initvals_band); |
61cb5dd6 MB |
2152 | if (err) |
2153 | goto err_load; | |
e4d6b795 MB |
2154 | |
2155 | return 0; | |
2156 | ||
e4d6b795 | 2157 | err_no_ucode: |
1a9f5093 MB |
2158 | err = ctx->fatal_failure = -EOPNOTSUPP; |
2159 | b43err(dev->wl, "The driver does not know which firmware (ucode) " | |
2160 | "is required for your device (wl-core rev %u)\n", rev); | |
e4d6b795 MB |
2161 | goto error; |
2162 | ||
2163 | err_no_pcm: | |
1a9f5093 MB |
2164 | err = ctx->fatal_failure = -EOPNOTSUPP; |
2165 | b43err(dev->wl, "The driver does not know which firmware (PCM) " | |
2166 | "is required for your device (wl-core rev %u)\n", rev); | |
e4d6b795 MB |
2167 | goto error; |
2168 | ||
2169 | err_no_initvals: | |
1a9f5093 MB |
2170 | err = ctx->fatal_failure = -EOPNOTSUPP; |
2171 | b43err(dev->wl, "The driver does not know which firmware (initvals) " | |
2172 | "is required for your device (wl-core rev %u)\n", rev); | |
2173 | goto error; | |
2174 | ||
2175 | err_load: | |
2176 | /* We failed to load this firmware image. The error message | |
2177 | * already is in ctx->errors. Return and let our caller decide | |
2178 | * what to do. */ | |
e4d6b795 MB |
2179 | goto error; |
2180 | ||
2181 | error: | |
2182 | b43_release_firmware(dev); | |
2183 | return err; | |
2184 | } | |
2185 | ||
1a9f5093 MB |
2186 | static int b43_request_firmware(struct b43_wldev *dev) |
2187 | { | |
2188 | struct b43_request_fw_context *ctx; | |
2189 | unsigned int i; | |
2190 | int err; | |
2191 | const char *errmsg; | |
2192 | ||
2193 | ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); | |
2194 | if (!ctx) | |
2195 | return -ENOMEM; | |
2196 | ctx->dev = dev; | |
2197 | ||
2198 | ctx->req_type = B43_FWTYPE_PROPRIETARY; | |
2199 | err = b43_try_request_fw(ctx); | |
2200 | if (!err) | |
2201 | goto out; /* Successfully loaded it. */ | |
2202 | err = ctx->fatal_failure; | |
2203 | if (err) | |
2204 | goto out; | |
2205 | ||
2206 | ctx->req_type = B43_FWTYPE_OPENSOURCE; | |
2207 | err = b43_try_request_fw(ctx); | |
2208 | if (!err) | |
2209 | goto out; /* Successfully loaded it. */ | |
2210 | err = ctx->fatal_failure; | |
2211 | if (err) | |
2212 | goto out; | |
2213 | ||
2214 | /* Could not find a usable firmware. Print the errors. */ | |
2215 | for (i = 0; i < B43_NR_FWTYPES; i++) { | |
2216 | errmsg = ctx->errors[i]; | |
2217 | if (strlen(errmsg)) | |
2218 | b43err(dev->wl, errmsg); | |
2219 | } | |
2220 | b43_print_fw_helptext(dev->wl, 1); | |
2221 | err = -ENOENT; | |
2222 | ||
2223 | out: | |
2224 | kfree(ctx); | |
2225 | return err; | |
2226 | } | |
2227 | ||
e4d6b795 MB |
2228 | static int b43_upload_microcode(struct b43_wldev *dev) |
2229 | { | |
2230 | const size_t hdr_len = sizeof(struct b43_fw_header); | |
2231 | const __be32 *data; | |
2232 | unsigned int i, len; | |
2233 | u16 fwrev, fwpatch, fwdate, fwtime; | |
1f7d87b0 | 2234 | u32 tmp, macctl; |
e4d6b795 MB |
2235 | int err = 0; |
2236 | ||
1f7d87b0 MB |
2237 | /* Jump the microcode PSM to offset 0 */ |
2238 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
2239 | B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN); | |
2240 | macctl |= B43_MACCTL_PSM_JMP0; | |
2241 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
2242 | /* Zero out all microcode PSM registers and shared memory. */ | |
2243 | for (i = 0; i < 64; i++) | |
2244 | b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0); | |
2245 | for (i = 0; i < 4096; i += 2) | |
2246 | b43_shm_write16(dev, B43_SHM_SHARED, i, 0); | |
2247 | ||
e4d6b795 | 2248 | /* Upload Microcode. */ |
61cb5dd6 MB |
2249 | data = (__be32 *) (dev->fw.ucode.data->data + hdr_len); |
2250 | len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32); | |
e4d6b795 MB |
2251 | b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000); |
2252 | for (i = 0; i < len; i++) { | |
2253 | b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i])); | |
2254 | udelay(10); | |
2255 | } | |
2256 | ||
61cb5dd6 | 2257 | if (dev->fw.pcm.data) { |
e4d6b795 | 2258 | /* Upload PCM data. */ |
61cb5dd6 MB |
2259 | data = (__be32 *) (dev->fw.pcm.data->data + hdr_len); |
2260 | len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32); | |
e4d6b795 MB |
2261 | b43_shm_control_word(dev, B43_SHM_HW, 0x01EA); |
2262 | b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000); | |
2263 | /* No need for autoinc bit in SHM_HW */ | |
2264 | b43_shm_control_word(dev, B43_SHM_HW, 0x01EB); | |
2265 | for (i = 0; i < len; i++) { | |
2266 | b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i])); | |
2267 | udelay(10); | |
2268 | } | |
2269 | } | |
2270 | ||
2271 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL); | |
1f7d87b0 MB |
2272 | |
2273 | /* Start the microcode PSM */ | |
2274 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
2275 | macctl &= ~B43_MACCTL_PSM_JMP0; | |
2276 | macctl |= B43_MACCTL_PSM_RUN; | |
2277 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
e4d6b795 MB |
2278 | |
2279 | /* Wait for the microcode to load and respond */ | |
2280 | i = 0; | |
2281 | while (1) { | |
2282 | tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); | |
2283 | if (tmp == B43_IRQ_MAC_SUSPENDED) | |
2284 | break; | |
2285 | i++; | |
1f7d87b0 | 2286 | if (i >= 20) { |
e4d6b795 | 2287 | b43err(dev->wl, "Microcode not responding\n"); |
eb189d8b | 2288 | b43_print_fw_helptext(dev->wl, 1); |
e4d6b795 | 2289 | err = -ENODEV; |
1f7d87b0 MB |
2290 | goto error; |
2291 | } | |
91d372c0 | 2292 | msleep(50); |
e4d6b795 MB |
2293 | } |
2294 | b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */ | |
2295 | ||
2296 | /* Get and check the revisions. */ | |
2297 | fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV); | |
2298 | fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH); | |
2299 | fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE); | |
2300 | fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME); | |
2301 | ||
2302 | if (fwrev <= 0x128) { | |
2303 | b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from " | |
2304 | "binary drivers older than version 4.x is unsupported. " | |
2305 | "You must upgrade your firmware files.\n"); | |
eb189d8b | 2306 | b43_print_fw_helptext(dev->wl, 1); |
e4d6b795 | 2307 | err = -EOPNOTSUPP; |
1f7d87b0 | 2308 | goto error; |
e4d6b795 | 2309 | } |
e4d6b795 MB |
2310 | dev->fw.rev = fwrev; |
2311 | dev->fw.patch = fwpatch; | |
e48b0eeb MB |
2312 | dev->fw.opensource = (fwdate == 0xFFFF); |
2313 | ||
403a3a13 MB |
2314 | /* Default to use-all-queues. */ |
2315 | dev->wl->hw->queues = dev->wl->mac80211_initially_registered_queues; | |
2316 | dev->qos_enabled = !!modparam_qos; | |
2317 | /* Default to firmware/hardware crypto acceleration. */ | |
2318 | dev->hwcrypto_enabled = 1; | |
2319 | ||
e48b0eeb | 2320 | if (dev->fw.opensource) { |
403a3a13 MB |
2321 | u16 fwcapa; |
2322 | ||
e48b0eeb MB |
2323 | /* Patchlevel info is encoded in the "time" field. */ |
2324 | dev->fw.patch = fwtime; | |
403a3a13 MB |
2325 | b43info(dev->wl, "Loading OpenSource firmware version %u.%u\n", |
2326 | dev->fw.rev, dev->fw.patch); | |
2327 | ||
2328 | fwcapa = b43_fwcapa_read(dev); | |
2329 | if (!(fwcapa & B43_FWCAPA_HWCRYPTO) || dev->fw.pcm_request_failed) { | |
2330 | b43info(dev->wl, "Hardware crypto acceleration not supported by firmware\n"); | |
2331 | /* Disable hardware crypto and fall back to software crypto. */ | |
2332 | dev->hwcrypto_enabled = 0; | |
2333 | } | |
2334 | if (!(fwcapa & B43_FWCAPA_QOS)) { | |
2335 | b43info(dev->wl, "QoS not supported by firmware\n"); | |
2336 | /* Disable QoS. Tweak hw->queues to 1. It will be restored before | |
2337 | * ieee80211_unregister to make sure the networking core can | |
2338 | * properly free possible resources. */ | |
2339 | dev->wl->hw->queues = 1; | |
2340 | dev->qos_enabled = 0; | |
2341 | } | |
e48b0eeb MB |
2342 | } else { |
2343 | b43info(dev->wl, "Loading firmware version %u.%u " | |
2344 | "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", | |
2345 | fwrev, fwpatch, | |
2346 | (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF, | |
2347 | (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F); | |
68217832 MB |
2348 | if (dev->fw.pcm_request_failed) { |
2349 | b43warn(dev->wl, "No \"pcm5.fw\" firmware file found. " | |
2350 | "Hardware accelerated cryptography is disabled.\n"); | |
2351 | b43_print_fw_helptext(dev->wl, 0); | |
2352 | } | |
e48b0eeb | 2353 | } |
e4d6b795 | 2354 | |
eb189d8b | 2355 | if (b43_is_old_txhdr_format(dev)) { |
c557289c MB |
2356 | /* We're over the deadline, but we keep support for old fw |
2357 | * until it turns out to be in major conflict with something new. */ | |
eb189d8b | 2358 | b43warn(dev->wl, "You are using an old firmware image. " |
c557289c MB |
2359 | "Support for old firmware will be removed soon " |
2360 | "(official deadline was July 2008).\n"); | |
eb189d8b MB |
2361 | b43_print_fw_helptext(dev->wl, 0); |
2362 | } | |
2363 | ||
1f7d87b0 MB |
2364 | return 0; |
2365 | ||
2366 | error: | |
2367 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
2368 | macctl &= ~B43_MACCTL_PSM_RUN; | |
2369 | macctl |= B43_MACCTL_PSM_JMP0; | |
2370 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
2371 | ||
e4d6b795 MB |
2372 | return err; |
2373 | } | |
2374 | ||
2375 | static int b43_write_initvals(struct b43_wldev *dev, | |
2376 | const struct b43_iv *ivals, | |
2377 | size_t count, | |
2378 | size_t array_size) | |
2379 | { | |
2380 | const struct b43_iv *iv; | |
2381 | u16 offset; | |
2382 | size_t i; | |
2383 | bool bit32; | |
2384 | ||
2385 | BUILD_BUG_ON(sizeof(struct b43_iv) != 6); | |
2386 | iv = ivals; | |
2387 | for (i = 0; i < count; i++) { | |
2388 | if (array_size < sizeof(iv->offset_size)) | |
2389 | goto err_format; | |
2390 | array_size -= sizeof(iv->offset_size); | |
2391 | offset = be16_to_cpu(iv->offset_size); | |
2392 | bit32 = !!(offset & B43_IV_32BIT); | |
2393 | offset &= B43_IV_OFFSET_MASK; | |
2394 | if (offset >= 0x1000) | |
2395 | goto err_format; | |
2396 | if (bit32) { | |
2397 | u32 value; | |
2398 | ||
2399 | if (array_size < sizeof(iv->data.d32)) | |
2400 | goto err_format; | |
2401 | array_size -= sizeof(iv->data.d32); | |
2402 | ||
533dd1b0 | 2403 | value = get_unaligned_be32(&iv->data.d32); |
e4d6b795 MB |
2404 | b43_write32(dev, offset, value); |
2405 | ||
2406 | iv = (const struct b43_iv *)((const uint8_t *)iv + | |
2407 | sizeof(__be16) + | |
2408 | sizeof(__be32)); | |
2409 | } else { | |
2410 | u16 value; | |
2411 | ||
2412 | if (array_size < sizeof(iv->data.d16)) | |
2413 | goto err_format; | |
2414 | array_size -= sizeof(iv->data.d16); | |
2415 | ||
2416 | value = be16_to_cpu(iv->data.d16); | |
2417 | b43_write16(dev, offset, value); | |
2418 | ||
2419 | iv = (const struct b43_iv *)((const uint8_t *)iv + | |
2420 | sizeof(__be16) + | |
2421 | sizeof(__be16)); | |
2422 | } | |
2423 | } | |
2424 | if (array_size) | |
2425 | goto err_format; | |
2426 | ||
2427 | return 0; | |
2428 | ||
2429 | err_format: | |
2430 | b43err(dev->wl, "Initial Values Firmware file-format error.\n"); | |
eb189d8b | 2431 | b43_print_fw_helptext(dev->wl, 1); |
e4d6b795 MB |
2432 | |
2433 | return -EPROTO; | |
2434 | } | |
2435 | ||
2436 | static int b43_upload_initvals(struct b43_wldev *dev) | |
2437 | { | |
2438 | const size_t hdr_len = sizeof(struct b43_fw_header); | |
2439 | const struct b43_fw_header *hdr; | |
2440 | struct b43_firmware *fw = &dev->fw; | |
2441 | const struct b43_iv *ivals; | |
2442 | size_t count; | |
2443 | int err; | |
2444 | ||
61cb5dd6 MB |
2445 | hdr = (const struct b43_fw_header *)(fw->initvals.data->data); |
2446 | ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len); | |
e4d6b795 MB |
2447 | count = be32_to_cpu(hdr->size); |
2448 | err = b43_write_initvals(dev, ivals, count, | |
61cb5dd6 | 2449 | fw->initvals.data->size - hdr_len); |
e4d6b795 MB |
2450 | if (err) |
2451 | goto out; | |
61cb5dd6 MB |
2452 | if (fw->initvals_band.data) { |
2453 | hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data); | |
2454 | ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len); | |
e4d6b795 MB |
2455 | count = be32_to_cpu(hdr->size); |
2456 | err = b43_write_initvals(dev, ivals, count, | |
61cb5dd6 | 2457 | fw->initvals_band.data->size - hdr_len); |
e4d6b795 MB |
2458 | if (err) |
2459 | goto out; | |
2460 | } | |
2461 | out: | |
2462 | ||
2463 | return err; | |
2464 | } | |
2465 | ||
2466 | /* Initialize the GPIOs | |
2467 | * http://bcm-specs.sipsolutions.net/GPIO | |
2468 | */ | |
2469 | static int b43_gpio_init(struct b43_wldev *dev) | |
2470 | { | |
2471 | struct ssb_bus *bus = dev->dev->bus; | |
2472 | struct ssb_device *gpiodev, *pcidev = NULL; | |
2473 | u32 mask, set; | |
2474 | ||
2475 | b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) | |
2476 | & ~B43_MACCTL_GPOUTSMSK); | |
2477 | ||
e4d6b795 MB |
2478 | b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK) |
2479 | | 0x000F); | |
2480 | ||
2481 | mask = 0x0000001F; | |
2482 | set = 0x0000000F; | |
2483 | if (dev->dev->bus->chip_id == 0x4301) { | |
2484 | mask |= 0x0060; | |
2485 | set |= 0x0060; | |
2486 | } | |
2487 | if (0 /* FIXME: conditional unknown */ ) { | |
2488 | b43_write16(dev, B43_MMIO_GPIO_MASK, | |
2489 | b43_read16(dev, B43_MMIO_GPIO_MASK) | |
2490 | | 0x0100); | |
2491 | mask |= 0x0180; | |
2492 | set |= 0x0180; | |
2493 | } | |
95de2841 | 2494 | if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL) { |
e4d6b795 MB |
2495 | b43_write16(dev, B43_MMIO_GPIO_MASK, |
2496 | b43_read16(dev, B43_MMIO_GPIO_MASK) | |
2497 | | 0x0200); | |
2498 | mask |= 0x0200; | |
2499 | set |= 0x0200; | |
2500 | } | |
2501 | if (dev->dev->id.revision >= 2) | |
2502 | mask |= 0x0010; /* FIXME: This is redundant. */ | |
2503 | ||
2504 | #ifdef CONFIG_SSB_DRIVER_PCICORE | |
2505 | pcidev = bus->pcicore.dev; | |
2506 | #endif | |
2507 | gpiodev = bus->chipco.dev ? : pcidev; | |
2508 | if (!gpiodev) | |
2509 | return 0; | |
2510 | ssb_write32(gpiodev, B43_GPIO_CONTROL, | |
2511 | (ssb_read32(gpiodev, B43_GPIO_CONTROL) | |
2512 | & mask) | set); | |
2513 | ||
2514 | return 0; | |
2515 | } | |
2516 | ||
2517 | /* Turn off all GPIO stuff. Call this on module unload, for example. */ | |
2518 | static void b43_gpio_cleanup(struct b43_wldev *dev) | |
2519 | { | |
2520 | struct ssb_bus *bus = dev->dev->bus; | |
2521 | struct ssb_device *gpiodev, *pcidev = NULL; | |
2522 | ||
2523 | #ifdef CONFIG_SSB_DRIVER_PCICORE | |
2524 | pcidev = bus->pcicore.dev; | |
2525 | #endif | |
2526 | gpiodev = bus->chipco.dev ? : pcidev; | |
2527 | if (!gpiodev) | |
2528 | return; | |
2529 | ssb_write32(gpiodev, B43_GPIO_CONTROL, 0); | |
2530 | } | |
2531 | ||
2532 | /* http://bcm-specs.sipsolutions.net/EnableMac */ | |
f5eda47f | 2533 | void b43_mac_enable(struct b43_wldev *dev) |
e4d6b795 | 2534 | { |
923fd703 MB |
2535 | if (b43_debug(dev, B43_DBG_FIRMWARE)) { |
2536 | u16 fwstate; | |
2537 | ||
2538 | fwstate = b43_shm_read16(dev, B43_SHM_SHARED, | |
2539 | B43_SHM_SH_UCODESTAT); | |
2540 | if ((fwstate != B43_SHM_SH_UCODESTAT_SUSP) && | |
2541 | (fwstate != B43_SHM_SH_UCODESTAT_SLEEP)) { | |
2542 | b43err(dev->wl, "b43_mac_enable(): The firmware " | |
2543 | "should be suspended, but current state is %u\n", | |
2544 | fwstate); | |
2545 | } | |
2546 | } | |
2547 | ||
e4d6b795 MB |
2548 | dev->mac_suspended--; |
2549 | B43_WARN_ON(dev->mac_suspended < 0); | |
2550 | if (dev->mac_suspended == 0) { | |
2551 | b43_write32(dev, B43_MMIO_MACCTL, | |
2552 | b43_read32(dev, B43_MMIO_MACCTL) | |
2553 | | B43_MACCTL_ENABLED); | |
2554 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, | |
2555 | B43_IRQ_MAC_SUSPENDED); | |
2556 | /* Commit writes */ | |
2557 | b43_read32(dev, B43_MMIO_MACCTL); | |
2558 | b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); | |
2559 | b43_power_saving_ctl_bits(dev, 0); | |
2560 | } | |
2561 | } | |
2562 | ||
2563 | /* http://bcm-specs.sipsolutions.net/SuspendMAC */ | |
f5eda47f | 2564 | void b43_mac_suspend(struct b43_wldev *dev) |
e4d6b795 MB |
2565 | { |
2566 | int i; | |
2567 | u32 tmp; | |
2568 | ||
05b64b36 | 2569 | might_sleep(); |
e4d6b795 | 2570 | B43_WARN_ON(dev->mac_suspended < 0); |
05b64b36 | 2571 | |
e4d6b795 MB |
2572 | if (dev->mac_suspended == 0) { |
2573 | b43_power_saving_ctl_bits(dev, B43_PS_AWAKE); | |
2574 | b43_write32(dev, B43_MMIO_MACCTL, | |
2575 | b43_read32(dev, B43_MMIO_MACCTL) | |
2576 | & ~B43_MACCTL_ENABLED); | |
2577 | /* force pci to flush the write */ | |
2578 | b43_read32(dev, B43_MMIO_MACCTL); | |
ba380013 MB |
2579 | for (i = 35; i; i--) { |
2580 | tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); | |
2581 | if (tmp & B43_IRQ_MAC_SUSPENDED) | |
2582 | goto out; | |
2583 | udelay(10); | |
2584 | } | |
2585 | /* Hm, it seems this will take some time. Use msleep(). */ | |
05b64b36 | 2586 | for (i = 40; i; i--) { |
e4d6b795 MB |
2587 | tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); |
2588 | if (tmp & B43_IRQ_MAC_SUSPENDED) | |
2589 | goto out; | |
05b64b36 | 2590 | msleep(1); |
e4d6b795 MB |
2591 | } |
2592 | b43err(dev->wl, "MAC suspend failed\n"); | |
2593 | } | |
05b64b36 | 2594 | out: |
e4d6b795 MB |
2595 | dev->mac_suspended++; |
2596 | } | |
2597 | ||
2598 | static void b43_adjust_opmode(struct b43_wldev *dev) | |
2599 | { | |
2600 | struct b43_wl *wl = dev->wl; | |
2601 | u32 ctl; | |
2602 | u16 cfp_pretbtt; | |
2603 | ||
2604 | ctl = b43_read32(dev, B43_MMIO_MACCTL); | |
2605 | /* Reset status to STA infrastructure mode. */ | |
2606 | ctl &= ~B43_MACCTL_AP; | |
2607 | ctl &= ~B43_MACCTL_KEEP_CTL; | |
2608 | ctl &= ~B43_MACCTL_KEEP_BADPLCP; | |
2609 | ctl &= ~B43_MACCTL_KEEP_BAD; | |
2610 | ctl &= ~B43_MACCTL_PROMISC; | |
4150c572 | 2611 | ctl &= ~B43_MACCTL_BEACPROMISC; |
e4d6b795 MB |
2612 | ctl |= B43_MACCTL_INFRA; |
2613 | ||
05c914fe JB |
2614 | if (b43_is_mode(wl, NL80211_IFTYPE_AP) || |
2615 | b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT)) | |
4150c572 | 2616 | ctl |= B43_MACCTL_AP; |
05c914fe | 2617 | else if (b43_is_mode(wl, NL80211_IFTYPE_ADHOC)) |
4150c572 JB |
2618 | ctl &= ~B43_MACCTL_INFRA; |
2619 | ||
2620 | if (wl->filter_flags & FIF_CONTROL) | |
e4d6b795 | 2621 | ctl |= B43_MACCTL_KEEP_CTL; |
4150c572 JB |
2622 | if (wl->filter_flags & FIF_FCSFAIL) |
2623 | ctl |= B43_MACCTL_KEEP_BAD; | |
2624 | if (wl->filter_flags & FIF_PLCPFAIL) | |
2625 | ctl |= B43_MACCTL_KEEP_BADPLCP; | |
2626 | if (wl->filter_flags & FIF_PROMISC_IN_BSS) | |
e4d6b795 | 2627 | ctl |= B43_MACCTL_PROMISC; |
4150c572 JB |
2628 | if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC) |
2629 | ctl |= B43_MACCTL_BEACPROMISC; | |
2630 | ||
e4d6b795 MB |
2631 | /* Workaround: On old hardware the HW-MAC-address-filter |
2632 | * doesn't work properly, so always run promisc in filter | |
2633 | * it in software. */ | |
2634 | if (dev->dev->id.revision <= 4) | |
2635 | ctl |= B43_MACCTL_PROMISC; | |
2636 | ||
2637 | b43_write32(dev, B43_MMIO_MACCTL, ctl); | |
2638 | ||
2639 | cfp_pretbtt = 2; | |
2640 | if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) { | |
2641 | if (dev->dev->bus->chip_id == 0x4306 && | |
2642 | dev->dev->bus->chip_rev == 3) | |
2643 | cfp_pretbtt = 100; | |
2644 | else | |
2645 | cfp_pretbtt = 50; | |
2646 | } | |
2647 | b43_write16(dev, 0x612, cfp_pretbtt); | |
2648 | } | |
2649 | ||
2650 | static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm) | |
2651 | { | |
2652 | u16 offset; | |
2653 | ||
2654 | if (is_ofdm) { | |
2655 | offset = 0x480; | |
2656 | offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2; | |
2657 | } else { | |
2658 | offset = 0x4C0; | |
2659 | offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2; | |
2660 | } | |
2661 | b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20, | |
2662 | b43_shm_read16(dev, B43_SHM_SHARED, offset)); | |
2663 | } | |
2664 | ||
2665 | static void b43_rate_memory_init(struct b43_wldev *dev) | |
2666 | { | |
2667 | switch (dev->phy.type) { | |
2668 | case B43_PHYTYPE_A: | |
2669 | case B43_PHYTYPE_G: | |
53a6e234 | 2670 | case B43_PHYTYPE_N: |
9d86a2d5 | 2671 | case B43_PHYTYPE_LP: |
e4d6b795 MB |
2672 | b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1); |
2673 | b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1); | |
2674 | b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1); | |
2675 | b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1); | |
2676 | b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1); | |
2677 | b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1); | |
2678 | b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1); | |
2679 | if (dev->phy.type == B43_PHYTYPE_A) | |
2680 | break; | |
2681 | /* fallthrough */ | |
2682 | case B43_PHYTYPE_B: | |
2683 | b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0); | |
2684 | b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0); | |
2685 | b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0); | |
2686 | b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0); | |
2687 | break; | |
2688 | default: | |
2689 | B43_WARN_ON(1); | |
2690 | } | |
2691 | } | |
2692 | ||
5042c507 MB |
2693 | /* Set the default values for the PHY TX Control Words. */ |
2694 | static void b43_set_phytxctl_defaults(struct b43_wldev *dev) | |
2695 | { | |
2696 | u16 ctl = 0; | |
2697 | ||
2698 | ctl |= B43_TXH_PHY_ENC_CCK; | |
2699 | ctl |= B43_TXH_PHY_ANT01AUTO; | |
2700 | ctl |= B43_TXH_PHY_TXPWR; | |
2701 | ||
2702 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl); | |
2703 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, ctl); | |
2704 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, ctl); | |
2705 | } | |
2706 | ||
e4d6b795 MB |
2707 | /* Set the TX-Antenna for management frames sent by firmware. */ |
2708 | static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna) | |
2709 | { | |
5042c507 | 2710 | u16 ant; |
e4d6b795 MB |
2711 | u16 tmp; |
2712 | ||
5042c507 | 2713 | ant = b43_antenna_to_phyctl(antenna); |
e4d6b795 | 2714 | |
e4d6b795 MB |
2715 | /* For ACK/CTS */ |
2716 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL); | |
eb189d8b | 2717 | tmp = (tmp & ~B43_TXH_PHY_ANT) | ant; |
e4d6b795 MB |
2718 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp); |
2719 | /* For Probe Resposes */ | |
2720 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL); | |
eb189d8b | 2721 | tmp = (tmp & ~B43_TXH_PHY_ANT) | ant; |
e4d6b795 MB |
2722 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp); |
2723 | } | |
2724 | ||
2725 | /* This is the opposite of b43_chip_init() */ | |
2726 | static void b43_chip_exit(struct b43_wldev *dev) | |
2727 | { | |
fb11137a | 2728 | b43_phy_exit(dev); |
e4d6b795 MB |
2729 | b43_gpio_cleanup(dev); |
2730 | /* firmware is released later */ | |
2731 | } | |
2732 | ||
2733 | /* Initialize the chip | |
2734 | * http://bcm-specs.sipsolutions.net/ChipInit | |
2735 | */ | |
2736 | static int b43_chip_init(struct b43_wldev *dev) | |
2737 | { | |
2738 | struct b43_phy *phy = &dev->phy; | |
ef1a628d | 2739 | int err; |
1f7d87b0 | 2740 | u32 value32, macctl; |
e4d6b795 MB |
2741 | u16 value16; |
2742 | ||
1f7d87b0 MB |
2743 | /* Initialize the MAC control */ |
2744 | macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED; | |
2745 | if (dev->phy.gmode) | |
2746 | macctl |= B43_MACCTL_GMODE; | |
2747 | macctl |= B43_MACCTL_INFRA; | |
2748 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
e4d6b795 MB |
2749 | |
2750 | err = b43_request_firmware(dev); | |
2751 | if (err) | |
2752 | goto out; | |
2753 | err = b43_upload_microcode(dev); | |
2754 | if (err) | |
2755 | goto out; /* firmware is released later */ | |
2756 | ||
2757 | err = b43_gpio_init(dev); | |
2758 | if (err) | |
2759 | goto out; /* firmware is released later */ | |
21954c36 | 2760 | |
e4d6b795 MB |
2761 | err = b43_upload_initvals(dev); |
2762 | if (err) | |
1a8d1227 | 2763 | goto err_gpio_clean; |
e4d6b795 | 2764 | |
0b7dcd96 MB |
2765 | /* Turn the Analog on and initialize the PHY. */ |
2766 | phy->ops->switch_analog(dev, 1); | |
e4d6b795 MB |
2767 | err = b43_phy_init(dev); |
2768 | if (err) | |
ef1a628d | 2769 | goto err_gpio_clean; |
e4d6b795 | 2770 | |
ef1a628d MB |
2771 | /* Disable Interference Mitigation. */ |
2772 | if (phy->ops->interf_mitigation) | |
2773 | phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE); | |
e4d6b795 | 2774 | |
ef1a628d MB |
2775 | /* Select the antennae */ |
2776 | if (phy->ops->set_rx_antenna) | |
2777 | phy->ops->set_rx_antenna(dev, B43_ANTENNA_DEFAULT); | |
e4d6b795 MB |
2778 | b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT); |
2779 | ||
2780 | if (phy->type == B43_PHYTYPE_B) { | |
2781 | value16 = b43_read16(dev, 0x005E); | |
2782 | value16 |= 0x0004; | |
2783 | b43_write16(dev, 0x005E, value16); | |
2784 | } | |
2785 | b43_write32(dev, 0x0100, 0x01000000); | |
2786 | if (dev->dev->id.revision < 5) | |
2787 | b43_write32(dev, 0x010C, 0x01000000); | |
2788 | ||
2789 | b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) | |
2790 | & ~B43_MACCTL_INFRA); | |
2791 | b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) | |
2792 | | B43_MACCTL_INFRA); | |
e4d6b795 | 2793 | |
e4d6b795 MB |
2794 | /* Probe Response Timeout value */ |
2795 | /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */ | |
2796 | b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000); | |
2797 | ||
2798 | /* Initially set the wireless operation mode. */ | |
2799 | b43_adjust_opmode(dev); | |
2800 | ||
2801 | if (dev->dev->id.revision < 3) { | |
2802 | b43_write16(dev, 0x060E, 0x0000); | |
2803 | b43_write16(dev, 0x0610, 0x8000); | |
2804 | b43_write16(dev, 0x0604, 0x0000); | |
2805 | b43_write16(dev, 0x0606, 0x0200); | |
2806 | } else { | |
2807 | b43_write32(dev, 0x0188, 0x80000000); | |
2808 | b43_write32(dev, 0x018C, 0x02000000); | |
2809 | } | |
2810 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000); | |
2811 | b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00); | |
2812 | b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00); | |
2813 | b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00); | |
2814 | b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00); | |
2815 | b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00); | |
2816 | b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00); | |
2817 | ||
2818 | value32 = ssb_read32(dev->dev, SSB_TMSLOW); | |
2819 | value32 |= 0x00100000; | |
2820 | ssb_write32(dev->dev, SSB_TMSLOW, value32); | |
2821 | ||
2822 | b43_write16(dev, B43_MMIO_POWERUP_DELAY, | |
2823 | dev->dev->bus->chipco.fast_pwrup_delay); | |
2824 | ||
2825 | err = 0; | |
2826 | b43dbg(dev->wl, "Chip initialized\n"); | |
21954c36 | 2827 | out: |
e4d6b795 MB |
2828 | return err; |
2829 | ||
1a8d1227 | 2830 | err_gpio_clean: |
e4d6b795 | 2831 | b43_gpio_cleanup(dev); |
21954c36 | 2832 | return err; |
e4d6b795 MB |
2833 | } |
2834 | ||
e4d6b795 MB |
2835 | static void b43_periodic_every60sec(struct b43_wldev *dev) |
2836 | { | |
ef1a628d | 2837 | const struct b43_phy_operations *ops = dev->phy.ops; |
e4d6b795 | 2838 | |
ef1a628d MB |
2839 | if (ops->pwork_60sec) |
2840 | ops->pwork_60sec(dev); | |
18c8adeb MB |
2841 | |
2842 | /* Force check the TX power emission now. */ | |
2843 | b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME); | |
e4d6b795 MB |
2844 | } |
2845 | ||
2846 | static void b43_periodic_every30sec(struct b43_wldev *dev) | |
2847 | { | |
2848 | /* Update device statistics. */ | |
2849 | b43_calculate_link_quality(dev); | |
2850 | } | |
2851 | ||
2852 | static void b43_periodic_every15sec(struct b43_wldev *dev) | |
2853 | { | |
2854 | struct b43_phy *phy = &dev->phy; | |
9b839a74 MB |
2855 | u16 wdr; |
2856 | ||
2857 | if (dev->fw.opensource) { | |
2858 | /* Check if the firmware is still alive. | |
2859 | * It will reset the watchdog counter to 0 in its idle loop. */ | |
2860 | wdr = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_WATCHDOG_REG); | |
2861 | if (unlikely(wdr)) { | |
2862 | b43err(dev->wl, "Firmware watchdog: The firmware died!\n"); | |
2863 | b43_controller_restart(dev, "Firmware watchdog"); | |
2864 | return; | |
2865 | } else { | |
2866 | b43_shm_write16(dev, B43_SHM_SCRATCH, | |
2867 | B43_WATCHDOG_REG, 1); | |
2868 | } | |
2869 | } | |
e4d6b795 | 2870 | |
ef1a628d MB |
2871 | if (phy->ops->pwork_15sec) |
2872 | phy->ops->pwork_15sec(dev); | |
2873 | ||
00e0b8cb SB |
2874 | atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT); |
2875 | wmb(); | |
e4d6b795 MB |
2876 | } |
2877 | ||
e4d6b795 MB |
2878 | static void do_periodic_work(struct b43_wldev *dev) |
2879 | { | |
2880 | unsigned int state; | |
2881 | ||
2882 | state = dev->periodic_state; | |
42bb4cd5 | 2883 | if (state % 4 == 0) |
e4d6b795 | 2884 | b43_periodic_every60sec(dev); |
42bb4cd5 | 2885 | if (state % 2 == 0) |
e4d6b795 | 2886 | b43_periodic_every30sec(dev); |
42bb4cd5 | 2887 | b43_periodic_every15sec(dev); |
e4d6b795 MB |
2888 | } |
2889 | ||
05b64b36 MB |
2890 | /* Periodic work locking policy: |
2891 | * The whole periodic work handler is protected by | |
2892 | * wl->mutex. If another lock is needed somewhere in the | |
2893 | * pwork callchain, it's aquired in-place, where it's needed. | |
e4d6b795 | 2894 | */ |
e4d6b795 MB |
2895 | static void b43_periodic_work_handler(struct work_struct *work) |
2896 | { | |
05b64b36 MB |
2897 | struct b43_wldev *dev = container_of(work, struct b43_wldev, |
2898 | periodic_work.work); | |
2899 | struct b43_wl *wl = dev->wl; | |
2900 | unsigned long delay; | |
e4d6b795 | 2901 | |
05b64b36 | 2902 | mutex_lock(&wl->mutex); |
e4d6b795 MB |
2903 | |
2904 | if (unlikely(b43_status(dev) != B43_STAT_STARTED)) | |
2905 | goto out; | |
2906 | if (b43_debug(dev, B43_DBG_PWORK_STOP)) | |
2907 | goto out_requeue; | |
2908 | ||
05b64b36 | 2909 | do_periodic_work(dev); |
e4d6b795 | 2910 | |
e4d6b795 | 2911 | dev->periodic_state++; |
42bb4cd5 | 2912 | out_requeue: |
e4d6b795 MB |
2913 | if (b43_debug(dev, B43_DBG_PWORK_FAST)) |
2914 | delay = msecs_to_jiffies(50); | |
2915 | else | |
82cd682d | 2916 | delay = round_jiffies_relative(HZ * 15); |
42935eca | 2917 | ieee80211_queue_delayed_work(wl->hw, &dev->periodic_work, delay); |
42bb4cd5 | 2918 | out: |
05b64b36 | 2919 | mutex_unlock(&wl->mutex); |
e4d6b795 MB |
2920 | } |
2921 | ||
2922 | static void b43_periodic_tasks_setup(struct b43_wldev *dev) | |
2923 | { | |
2924 | struct delayed_work *work = &dev->periodic_work; | |
2925 | ||
2926 | dev->periodic_state = 0; | |
2927 | INIT_DELAYED_WORK(work, b43_periodic_work_handler); | |
42935eca | 2928 | ieee80211_queue_delayed_work(dev->wl->hw, work, 0); |
e4d6b795 MB |
2929 | } |
2930 | ||
f3dd3fcc | 2931 | /* Check if communication with the device works correctly. */ |
e4d6b795 MB |
2932 | static int b43_validate_chipaccess(struct b43_wldev *dev) |
2933 | { | |
f62ae6cd | 2934 | u32 v, backup0, backup4; |
e4d6b795 | 2935 | |
f62ae6cd MB |
2936 | backup0 = b43_shm_read32(dev, B43_SHM_SHARED, 0); |
2937 | backup4 = b43_shm_read32(dev, B43_SHM_SHARED, 4); | |
f3dd3fcc MB |
2938 | |
2939 | /* Check for read/write and endianness problems. */ | |
e4d6b795 MB |
2940 | b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55); |
2941 | if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55) | |
2942 | goto error; | |
f3dd3fcc MB |
2943 | b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA); |
2944 | if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA) | |
e4d6b795 MB |
2945 | goto error; |
2946 | ||
f62ae6cd MB |
2947 | /* Check if unaligned 32bit SHM_SHARED access works properly. |
2948 | * However, don't bail out on failure, because it's noncritical. */ | |
2949 | b43_shm_write16(dev, B43_SHM_SHARED, 0, 0x1122); | |
2950 | b43_shm_write16(dev, B43_SHM_SHARED, 2, 0x3344); | |
2951 | b43_shm_write16(dev, B43_SHM_SHARED, 4, 0x5566); | |
2952 | b43_shm_write16(dev, B43_SHM_SHARED, 6, 0x7788); | |
2953 | if (b43_shm_read32(dev, B43_SHM_SHARED, 2) != 0x55663344) | |
2954 | b43warn(dev->wl, "Unaligned 32bit SHM read access is broken\n"); | |
2955 | b43_shm_write32(dev, B43_SHM_SHARED, 2, 0xAABBCCDD); | |
2956 | if (b43_shm_read16(dev, B43_SHM_SHARED, 0) != 0x1122 || | |
2957 | b43_shm_read16(dev, B43_SHM_SHARED, 2) != 0xCCDD || | |
2958 | b43_shm_read16(dev, B43_SHM_SHARED, 4) != 0xAABB || | |
2959 | b43_shm_read16(dev, B43_SHM_SHARED, 6) != 0x7788) | |
2960 | b43warn(dev->wl, "Unaligned 32bit SHM write access is broken\n"); | |
2961 | ||
2962 | b43_shm_write32(dev, B43_SHM_SHARED, 0, backup0); | |
2963 | b43_shm_write32(dev, B43_SHM_SHARED, 4, backup4); | |
f3dd3fcc MB |
2964 | |
2965 | if ((dev->dev->id.revision >= 3) && (dev->dev->id.revision <= 10)) { | |
2966 | /* The 32bit register shadows the two 16bit registers | |
2967 | * with update sideeffects. Validate this. */ | |
2968 | b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA); | |
2969 | b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB); | |
2970 | if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB) | |
2971 | goto error; | |
2972 | if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC) | |
2973 | goto error; | |
2974 | } | |
2975 | b43_write32(dev, B43_MMIO_TSF_CFP_START, 0); | |
2976 | ||
2977 | v = b43_read32(dev, B43_MMIO_MACCTL); | |
2978 | v |= B43_MACCTL_GMODE; | |
2979 | if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED)) | |
e4d6b795 MB |
2980 | goto error; |
2981 | ||
2982 | return 0; | |
f3dd3fcc | 2983 | error: |
e4d6b795 MB |
2984 | b43err(dev->wl, "Failed to validate the chipaccess\n"); |
2985 | return -ENODEV; | |
2986 | } | |
2987 | ||
2988 | static void b43_security_init(struct b43_wldev *dev) | |
2989 | { | |
e4d6b795 MB |
2990 | dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP); |
2991 | /* KTP is a word address, but we address SHM bytewise. | |
2992 | * So multiply by two. | |
2993 | */ | |
2994 | dev->ktp *= 2; | |
66d2d089 MB |
2995 | /* Number of RCMTA address slots */ |
2996 | b43_write16(dev, B43_MMIO_RCMTA_COUNT, B43_NR_PAIRWISE_KEYS); | |
2997 | /* Clear the key memory. */ | |
e4d6b795 MB |
2998 | b43_clear_keys(dev); |
2999 | } | |
3000 | ||
616de35d | 3001 | #ifdef CONFIG_B43_HWRNG |
99da185a | 3002 | static int b43_rng_read(struct hwrng *rng, u32 *data) |
e4d6b795 MB |
3003 | { |
3004 | struct b43_wl *wl = (struct b43_wl *)rng->priv; | |
e4d6b795 | 3005 | |
36dbd954 MB |
3006 | /* FIXME: We need to take wl->mutex here to make sure the device |
3007 | * is not going away from under our ass. However it could deadlock | |
3008 | * with hwrng internal locking. */ | |
e4d6b795 | 3009 | |
e4d6b795 | 3010 | *data = b43_read16(wl->current_dev, B43_MMIO_RNG); |
e4d6b795 MB |
3011 | |
3012 | return (sizeof(u16)); | |
3013 | } | |
616de35d | 3014 | #endif /* CONFIG_B43_HWRNG */ |
e4d6b795 | 3015 | |
b844eba2 | 3016 | static void b43_rng_exit(struct b43_wl *wl) |
e4d6b795 | 3017 | { |
616de35d | 3018 | #ifdef CONFIG_B43_HWRNG |
e4d6b795 | 3019 | if (wl->rng_initialized) |
b844eba2 | 3020 | hwrng_unregister(&wl->rng); |
616de35d | 3021 | #endif /* CONFIG_B43_HWRNG */ |
e4d6b795 MB |
3022 | } |
3023 | ||
3024 | static int b43_rng_init(struct b43_wl *wl) | |
3025 | { | |
616de35d | 3026 | int err = 0; |
e4d6b795 | 3027 | |
616de35d | 3028 | #ifdef CONFIG_B43_HWRNG |
e4d6b795 MB |
3029 | snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name), |
3030 | "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy)); | |
3031 | wl->rng.name = wl->rng_name; | |
3032 | wl->rng.data_read = b43_rng_read; | |
3033 | wl->rng.priv = (unsigned long)wl; | |
3034 | wl->rng_initialized = 1; | |
3035 | err = hwrng_register(&wl->rng); | |
3036 | if (err) { | |
3037 | wl->rng_initialized = 0; | |
3038 | b43err(wl, "Failed to register the random " | |
3039 | "number generator (%d)\n", err); | |
3040 | } | |
616de35d | 3041 | #endif /* CONFIG_B43_HWRNG */ |
e4d6b795 MB |
3042 | |
3043 | return err; | |
3044 | } | |
3045 | ||
f5d40eed | 3046 | static void b43_tx_work(struct work_struct *work) |
e4d6b795 | 3047 | { |
f5d40eed MB |
3048 | struct b43_wl *wl = container_of(work, struct b43_wl, tx_work); |
3049 | struct b43_wldev *dev; | |
3050 | struct sk_buff *skb; | |
3051 | int err = 0; | |
e4d6b795 | 3052 | |
f5d40eed MB |
3053 | mutex_lock(&wl->mutex); |
3054 | dev = wl->current_dev; | |
3055 | if (unlikely(!dev || b43_status(dev) < B43_STAT_STARTED)) { | |
3056 | mutex_unlock(&wl->mutex); | |
3057 | return; | |
5100d5ac | 3058 | } |
21a75d77 | 3059 | |
f5d40eed MB |
3060 | while (skb_queue_len(&wl->tx_queue)) { |
3061 | skb = skb_dequeue(&wl->tx_queue); | |
21a75d77 | 3062 | |
21a75d77 | 3063 | if (b43_using_pio_transfers(dev)) |
e039fa4a | 3064 | err = b43_pio_tx(dev, skb); |
21a75d77 | 3065 | else |
e039fa4a | 3066 | err = b43_dma_tx(dev, skb); |
f5d40eed MB |
3067 | if (unlikely(err)) |
3068 | dev_kfree_skb(skb); /* Drop it */ | |
21a75d77 MB |
3069 | } |
3070 | ||
f5d40eed MB |
3071 | mutex_unlock(&wl->mutex); |
3072 | } | |
21a75d77 | 3073 | |
f5d40eed MB |
3074 | static int b43_op_tx(struct ieee80211_hw *hw, |
3075 | struct sk_buff *skb) | |
3076 | { | |
3077 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3078 | ||
3079 | if (unlikely(skb->len < 2 + 2 + 6)) { | |
3080 | /* Too short, this can't be a valid frame. */ | |
3081 | dev_kfree_skb_any(skb); | |
3082 | return NETDEV_TX_OK; | |
3083 | } | |
3084 | B43_WARN_ON(skb_shinfo(skb)->nr_frags); | |
3085 | ||
3086 | skb_queue_tail(&wl->tx_queue, skb); | |
3087 | ieee80211_queue_work(wl->hw, &wl->tx_work); | |
c9e8eae0 | 3088 | |
e4d6b795 MB |
3089 | return NETDEV_TX_OK; |
3090 | } | |
3091 | ||
e6f5b934 MB |
3092 | static void b43_qos_params_upload(struct b43_wldev *dev, |
3093 | const struct ieee80211_tx_queue_params *p, | |
3094 | u16 shm_offset) | |
3095 | { | |
3096 | u16 params[B43_NR_QOSPARAMS]; | |
0b57664c | 3097 | int bslots, tmp; |
e6f5b934 MB |
3098 | unsigned int i; |
3099 | ||
b0544eb6 MB |
3100 | if (!dev->qos_enabled) |
3101 | return; | |
3102 | ||
0b57664c | 3103 | bslots = b43_read16(dev, B43_MMIO_RNG) & p->cw_min; |
e6f5b934 MB |
3104 | |
3105 | memset(¶ms, 0, sizeof(params)); | |
3106 | ||
3107 | params[B43_QOSPARAM_TXOP] = p->txop * 32; | |
0b57664c JB |
3108 | params[B43_QOSPARAM_CWMIN] = p->cw_min; |
3109 | params[B43_QOSPARAM_CWMAX] = p->cw_max; | |
3110 | params[B43_QOSPARAM_CWCUR] = p->cw_min; | |
3111 | params[B43_QOSPARAM_AIFS] = p->aifs; | |
e6f5b934 | 3112 | params[B43_QOSPARAM_BSLOTS] = bslots; |
0b57664c | 3113 | params[B43_QOSPARAM_REGGAP] = bslots + p->aifs; |
e6f5b934 MB |
3114 | |
3115 | for (i = 0; i < ARRAY_SIZE(params); i++) { | |
3116 | if (i == B43_QOSPARAM_STATUS) { | |
3117 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, | |
3118 | shm_offset + (i * 2)); | |
3119 | /* Mark the parameters as updated. */ | |
3120 | tmp |= 0x100; | |
3121 | b43_shm_write16(dev, B43_SHM_SHARED, | |
3122 | shm_offset + (i * 2), | |
3123 | tmp); | |
3124 | } else { | |
3125 | b43_shm_write16(dev, B43_SHM_SHARED, | |
3126 | shm_offset + (i * 2), | |
3127 | params[i]); | |
3128 | } | |
3129 | } | |
3130 | } | |
3131 | ||
c40c1129 MB |
3132 | /* Mapping of mac80211 queue numbers to b43 QoS SHM offsets. */ |
3133 | static const u16 b43_qos_shm_offsets[] = { | |
3134 | /* [mac80211-queue-nr] = SHM_OFFSET, */ | |
3135 | [0] = B43_QOS_VOICE, | |
3136 | [1] = B43_QOS_VIDEO, | |
3137 | [2] = B43_QOS_BESTEFFORT, | |
3138 | [3] = B43_QOS_BACKGROUND, | |
3139 | }; | |
3140 | ||
5a5f3b40 MB |
3141 | /* Update all QOS parameters in hardware. */ |
3142 | static void b43_qos_upload_all(struct b43_wldev *dev) | |
e6f5b934 MB |
3143 | { |
3144 | struct b43_wl *wl = dev->wl; | |
3145 | struct b43_qos_params *params; | |
e6f5b934 MB |
3146 | unsigned int i; |
3147 | ||
b0544eb6 MB |
3148 | if (!dev->qos_enabled) |
3149 | return; | |
3150 | ||
c40c1129 MB |
3151 | BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != |
3152 | ARRAY_SIZE(wl->qos_params)); | |
e6f5b934 MB |
3153 | |
3154 | b43_mac_suspend(dev); | |
e6f5b934 MB |
3155 | for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) { |
3156 | params = &(wl->qos_params[i]); | |
5a5f3b40 MB |
3157 | b43_qos_params_upload(dev, &(params->p), |
3158 | b43_qos_shm_offsets[i]); | |
e6f5b934 | 3159 | } |
e6f5b934 MB |
3160 | b43_mac_enable(dev); |
3161 | } | |
3162 | ||
3163 | static void b43_qos_clear(struct b43_wl *wl) | |
3164 | { | |
3165 | struct b43_qos_params *params; | |
3166 | unsigned int i; | |
3167 | ||
c40c1129 MB |
3168 | /* Initialize QoS parameters to sane defaults. */ |
3169 | ||
3170 | BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != | |
3171 | ARRAY_SIZE(wl->qos_params)); | |
3172 | ||
e6f5b934 MB |
3173 | for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) { |
3174 | params = &(wl->qos_params[i]); | |
3175 | ||
c40c1129 MB |
3176 | switch (b43_qos_shm_offsets[i]) { |
3177 | case B43_QOS_VOICE: | |
3178 | params->p.txop = 0; | |
3179 | params->p.aifs = 2; | |
3180 | params->p.cw_min = 0x0001; | |
3181 | params->p.cw_max = 0x0001; | |
3182 | break; | |
3183 | case B43_QOS_VIDEO: | |
3184 | params->p.txop = 0; | |
3185 | params->p.aifs = 2; | |
3186 | params->p.cw_min = 0x0001; | |
3187 | params->p.cw_max = 0x0001; | |
3188 | break; | |
3189 | case B43_QOS_BESTEFFORT: | |
3190 | params->p.txop = 0; | |
3191 | params->p.aifs = 3; | |
3192 | params->p.cw_min = 0x0001; | |
3193 | params->p.cw_max = 0x03FF; | |
3194 | break; | |
3195 | case B43_QOS_BACKGROUND: | |
3196 | params->p.txop = 0; | |
3197 | params->p.aifs = 7; | |
3198 | params->p.cw_min = 0x0001; | |
3199 | params->p.cw_max = 0x03FF; | |
3200 | break; | |
3201 | default: | |
3202 | B43_WARN_ON(1); | |
3203 | } | |
e6f5b934 MB |
3204 | } |
3205 | } | |
3206 | ||
3207 | /* Initialize the core's QOS capabilities */ | |
3208 | static void b43_qos_init(struct b43_wldev *dev) | |
3209 | { | |
b0544eb6 MB |
3210 | if (!dev->qos_enabled) { |
3211 | /* Disable QOS support. */ | |
3212 | b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_EDCF); | |
3213 | b43_write16(dev, B43_MMIO_IFSCTL, | |
3214 | b43_read16(dev, B43_MMIO_IFSCTL) | |
3215 | & ~B43_MMIO_IFSCTL_USE_EDCF); | |
3216 | b43dbg(dev->wl, "QoS disabled\n"); | |
3217 | return; | |
3218 | } | |
3219 | ||
e6f5b934 | 3220 | /* Upload the current QOS parameters. */ |
5a5f3b40 | 3221 | b43_qos_upload_all(dev); |
e6f5b934 MB |
3222 | |
3223 | /* Enable QOS support. */ | |
3224 | b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF); | |
3225 | b43_write16(dev, B43_MMIO_IFSCTL, | |
3226 | b43_read16(dev, B43_MMIO_IFSCTL) | |
3227 | | B43_MMIO_IFSCTL_USE_EDCF); | |
b0544eb6 | 3228 | b43dbg(dev->wl, "QoS enabled\n"); |
e6f5b934 MB |
3229 | } |
3230 | ||
e100bb64 | 3231 | static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue, |
40faacc4 | 3232 | const struct ieee80211_tx_queue_params *params) |
e4d6b795 | 3233 | { |
e6f5b934 | 3234 | struct b43_wl *wl = hw_to_b43_wl(hw); |
5a5f3b40 | 3235 | struct b43_wldev *dev; |
e6f5b934 | 3236 | unsigned int queue = (unsigned int)_queue; |
5a5f3b40 | 3237 | int err = -ENODEV; |
e6f5b934 MB |
3238 | |
3239 | if (queue >= ARRAY_SIZE(wl->qos_params)) { | |
3240 | /* Queue not available or don't support setting | |
3241 | * params on this queue. Return success to not | |
3242 | * confuse mac80211. */ | |
3243 | return 0; | |
3244 | } | |
5a5f3b40 MB |
3245 | BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != |
3246 | ARRAY_SIZE(wl->qos_params)); | |
e6f5b934 | 3247 | |
5a5f3b40 MB |
3248 | mutex_lock(&wl->mutex); |
3249 | dev = wl->current_dev; | |
3250 | if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) | |
3251 | goto out_unlock; | |
e6f5b934 | 3252 | |
5a5f3b40 MB |
3253 | memcpy(&(wl->qos_params[queue].p), params, sizeof(*params)); |
3254 | b43_mac_suspend(dev); | |
3255 | b43_qos_params_upload(dev, &(wl->qos_params[queue].p), | |
3256 | b43_qos_shm_offsets[queue]); | |
3257 | b43_mac_enable(dev); | |
3258 | err = 0; | |
e6f5b934 | 3259 | |
5a5f3b40 MB |
3260 | out_unlock: |
3261 | mutex_unlock(&wl->mutex); | |
3262 | ||
3263 | return err; | |
e4d6b795 MB |
3264 | } |
3265 | ||
40faacc4 MB |
3266 | static int b43_op_get_tx_stats(struct ieee80211_hw *hw, |
3267 | struct ieee80211_tx_queue_stats *stats) | |
e4d6b795 MB |
3268 | { |
3269 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
36dbd954 | 3270 | struct b43_wldev *dev; |
e4d6b795 MB |
3271 | int err = -ENODEV; |
3272 | ||
36dbd954 MB |
3273 | mutex_lock(&wl->mutex); |
3274 | dev = wl->current_dev; | |
3275 | if (dev && b43_status(dev) >= B43_STAT_STARTED) { | |
5100d5ac MB |
3276 | if (b43_using_pio_transfers(dev)) |
3277 | b43_pio_get_tx_stats(dev, stats); | |
3278 | else | |
3279 | b43_dma_get_tx_stats(dev, stats); | |
e4d6b795 MB |
3280 | err = 0; |
3281 | } | |
36dbd954 MB |
3282 | mutex_unlock(&wl->mutex); |
3283 | ||
e4d6b795 MB |
3284 | return err; |
3285 | } | |
3286 | ||
40faacc4 MB |
3287 | static int b43_op_get_stats(struct ieee80211_hw *hw, |
3288 | struct ieee80211_low_level_stats *stats) | |
e4d6b795 MB |
3289 | { |
3290 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
e4d6b795 | 3291 | |
36dbd954 | 3292 | mutex_lock(&wl->mutex); |
e4d6b795 | 3293 | memcpy(stats, &wl->ieee_stats, sizeof(*stats)); |
36dbd954 | 3294 | mutex_unlock(&wl->mutex); |
e4d6b795 MB |
3295 | |
3296 | return 0; | |
3297 | } | |
3298 | ||
08e87a83 AF |
3299 | static u64 b43_op_get_tsf(struct ieee80211_hw *hw) |
3300 | { | |
3301 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3302 | struct b43_wldev *dev; | |
3303 | u64 tsf; | |
3304 | ||
3305 | mutex_lock(&wl->mutex); | |
08e87a83 AF |
3306 | dev = wl->current_dev; |
3307 | ||
3308 | if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) | |
3309 | b43_tsf_read(dev, &tsf); | |
3310 | else | |
3311 | tsf = 0; | |
3312 | ||
08e87a83 AF |
3313 | mutex_unlock(&wl->mutex); |
3314 | ||
3315 | return tsf; | |
3316 | } | |
3317 | ||
3318 | static void b43_op_set_tsf(struct ieee80211_hw *hw, u64 tsf) | |
3319 | { | |
3320 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3321 | struct b43_wldev *dev; | |
3322 | ||
3323 | mutex_lock(&wl->mutex); | |
08e87a83 AF |
3324 | dev = wl->current_dev; |
3325 | ||
3326 | if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) | |
3327 | b43_tsf_write(dev, tsf); | |
3328 | ||
08e87a83 AF |
3329 | mutex_unlock(&wl->mutex); |
3330 | } | |
3331 | ||
e4d6b795 MB |
3332 | static void b43_put_phy_into_reset(struct b43_wldev *dev) |
3333 | { | |
3334 | struct ssb_device *sdev = dev->dev; | |
3335 | u32 tmslow; | |
3336 | ||
3337 | tmslow = ssb_read32(sdev, SSB_TMSLOW); | |
3338 | tmslow &= ~B43_TMSLOW_GMODE; | |
3339 | tmslow |= B43_TMSLOW_PHYRESET; | |
3340 | tmslow |= SSB_TMSLOW_FGC; | |
3341 | ssb_write32(sdev, SSB_TMSLOW, tmslow); | |
3342 | msleep(1); | |
3343 | ||
3344 | tmslow = ssb_read32(sdev, SSB_TMSLOW); | |
3345 | tmslow &= ~SSB_TMSLOW_FGC; | |
3346 | tmslow |= B43_TMSLOW_PHYRESET; | |
3347 | ssb_write32(sdev, SSB_TMSLOW, tmslow); | |
3348 | msleep(1); | |
3349 | } | |
3350 | ||
99da185a | 3351 | static const char *band_to_string(enum ieee80211_band band) |
bb1eeff1 MB |
3352 | { |
3353 | switch (band) { | |
3354 | case IEEE80211_BAND_5GHZ: | |
3355 | return "5"; | |
3356 | case IEEE80211_BAND_2GHZ: | |
3357 | return "2.4"; | |
3358 | default: | |
3359 | break; | |
3360 | } | |
3361 | B43_WARN_ON(1); | |
3362 | return ""; | |
3363 | } | |
3364 | ||
e4d6b795 | 3365 | /* Expects wl->mutex locked */ |
bb1eeff1 | 3366 | static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan) |
e4d6b795 | 3367 | { |
bb1eeff1 | 3368 | struct b43_wldev *up_dev = NULL; |
e4d6b795 | 3369 | struct b43_wldev *down_dev; |
bb1eeff1 | 3370 | struct b43_wldev *d; |
e4d6b795 | 3371 | int err; |
922d8a0b | 3372 | bool uninitialized_var(gmode); |
e4d6b795 MB |
3373 | int prev_status; |
3374 | ||
bb1eeff1 MB |
3375 | /* Find a device and PHY which supports the band. */ |
3376 | list_for_each_entry(d, &wl->devlist, list) { | |
3377 | switch (chan->band) { | |
3378 | case IEEE80211_BAND_5GHZ: | |
3379 | if (d->phy.supports_5ghz) { | |
3380 | up_dev = d; | |
3381 | gmode = 0; | |
3382 | } | |
3383 | break; | |
3384 | case IEEE80211_BAND_2GHZ: | |
3385 | if (d->phy.supports_2ghz) { | |
3386 | up_dev = d; | |
3387 | gmode = 1; | |
3388 | } | |
3389 | break; | |
3390 | default: | |
3391 | B43_WARN_ON(1); | |
3392 | return -EINVAL; | |
3393 | } | |
3394 | if (up_dev) | |
3395 | break; | |
3396 | } | |
3397 | if (!up_dev) { | |
3398 | b43err(wl, "Could not find a device for %s-GHz band operation\n", | |
3399 | band_to_string(chan->band)); | |
3400 | return -ENODEV; | |
e4d6b795 MB |
3401 | } |
3402 | if ((up_dev == wl->current_dev) && | |
3403 | (!!wl->current_dev->phy.gmode == !!gmode)) { | |
3404 | /* This device is already running. */ | |
3405 | return 0; | |
3406 | } | |
bb1eeff1 MB |
3407 | b43dbg(wl, "Switching to %s-GHz band\n", |
3408 | band_to_string(chan->band)); | |
e4d6b795 MB |
3409 | down_dev = wl->current_dev; |
3410 | ||
3411 | prev_status = b43_status(down_dev); | |
3412 | /* Shutdown the currently running core. */ | |
3413 | if (prev_status >= B43_STAT_STARTED) | |
36dbd954 | 3414 | down_dev = b43_wireless_core_stop(down_dev); |
e4d6b795 MB |
3415 | if (prev_status >= B43_STAT_INITIALIZED) |
3416 | b43_wireless_core_exit(down_dev); | |
3417 | ||
3418 | if (down_dev != up_dev) { | |
3419 | /* We switch to a different core, so we put PHY into | |
3420 | * RESET on the old core. */ | |
3421 | b43_put_phy_into_reset(down_dev); | |
3422 | } | |
3423 | ||
3424 | /* Now start the new core. */ | |
3425 | up_dev->phy.gmode = gmode; | |
3426 | if (prev_status >= B43_STAT_INITIALIZED) { | |
3427 | err = b43_wireless_core_init(up_dev); | |
3428 | if (err) { | |
3429 | b43err(wl, "Fatal: Could not initialize device for " | |
bb1eeff1 MB |
3430 | "selected %s-GHz band\n", |
3431 | band_to_string(chan->band)); | |
e4d6b795 MB |
3432 | goto init_failure; |
3433 | } | |
3434 | } | |
3435 | if (prev_status >= B43_STAT_STARTED) { | |
3436 | err = b43_wireless_core_start(up_dev); | |
3437 | if (err) { | |
3438 | b43err(wl, "Fatal: Coult not start device for " | |
bb1eeff1 MB |
3439 | "selected %s-GHz band\n", |
3440 | band_to_string(chan->band)); | |
e4d6b795 MB |
3441 | b43_wireless_core_exit(up_dev); |
3442 | goto init_failure; | |
3443 | } | |
3444 | } | |
3445 | B43_WARN_ON(b43_status(up_dev) != prev_status); | |
3446 | ||
3447 | wl->current_dev = up_dev; | |
3448 | ||
3449 | return 0; | |
bb1eeff1 | 3450 | init_failure: |
e4d6b795 MB |
3451 | /* Whoops, failed to init the new core. No core is operating now. */ |
3452 | wl->current_dev = NULL; | |
3453 | return err; | |
3454 | } | |
3455 | ||
9124b077 JB |
3456 | /* Write the short and long frame retry limit values. */ |
3457 | static void b43_set_retry_limits(struct b43_wldev *dev, | |
3458 | unsigned int short_retry, | |
3459 | unsigned int long_retry) | |
3460 | { | |
3461 | /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing | |
3462 | * the chip-internal counter. */ | |
3463 | short_retry = min(short_retry, (unsigned int)0xF); | |
3464 | long_retry = min(long_retry, (unsigned int)0xF); | |
3465 | ||
3466 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT, | |
3467 | short_retry); | |
3468 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT, | |
3469 | long_retry); | |
3470 | } | |
3471 | ||
e8975581 | 3472 | static int b43_op_config(struct ieee80211_hw *hw, u32 changed) |
e4d6b795 MB |
3473 | { |
3474 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3475 | struct b43_wldev *dev; | |
3476 | struct b43_phy *phy; | |
e8975581 | 3477 | struct ieee80211_conf *conf = &hw->conf; |
9db1f6d7 | 3478 | int antenna; |
e4d6b795 | 3479 | int err = 0; |
e4d6b795 | 3480 | |
e4d6b795 MB |
3481 | mutex_lock(&wl->mutex); |
3482 | ||
bb1eeff1 MB |
3483 | /* Switch the band (if necessary). This might change the active core. */ |
3484 | err = b43_switch_band(wl, conf->channel); | |
e4d6b795 MB |
3485 | if (err) |
3486 | goto out_unlock_mutex; | |
3487 | dev = wl->current_dev; | |
3488 | phy = &dev->phy; | |
3489 | ||
d10d0e57 MB |
3490 | b43_mac_suspend(dev); |
3491 | ||
9124b077 JB |
3492 | if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) |
3493 | b43_set_retry_limits(dev, conf->short_frame_max_tx_count, | |
3494 | conf->long_frame_max_tx_count); | |
3495 | changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS; | |
3496 | if (!changed) | |
d10d0e57 | 3497 | goto out_mac_enable; |
e4d6b795 MB |
3498 | |
3499 | /* Switch to the requested channel. | |
3500 | * The firmware takes care of races with the TX handler. */ | |
8318d78a | 3501 | if (conf->channel->hw_value != phy->channel) |
ef1a628d | 3502 | b43_switch_channel(dev, conf->channel->hw_value); |
e4d6b795 | 3503 | |
d42ce84a JB |
3504 | dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_RADIOTAP); |
3505 | ||
e4d6b795 MB |
3506 | /* Adjust the desired TX power level. */ |
3507 | if (conf->power_level != 0) { | |
18c8adeb MB |
3508 | if (conf->power_level != phy->desired_txpower) { |
3509 | phy->desired_txpower = conf->power_level; | |
3510 | b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME | | |
3511 | B43_TXPWR_IGNORE_TSSI); | |
e4d6b795 MB |
3512 | } |
3513 | } | |
3514 | ||
3515 | /* Antennas for RX and management frame TX. */ | |
0f4ac38b | 3516 | antenna = B43_ANTENNA_DEFAULT; |
9db1f6d7 | 3517 | b43_mgmtframe_txantenna(dev, antenna); |
0f4ac38b | 3518 | antenna = B43_ANTENNA_DEFAULT; |
ef1a628d MB |
3519 | if (phy->ops->set_rx_antenna) |
3520 | phy->ops->set_rx_antenna(dev, antenna); | |
e4d6b795 | 3521 | |
fd4973c5 LF |
3522 | if (wl->radio_enabled != phy->radio_on) { |
3523 | if (wl->radio_enabled) { | |
19d337df | 3524 | b43_software_rfkill(dev, false); |
fda9abcf MB |
3525 | b43info(dev->wl, "Radio turned on by software\n"); |
3526 | if (!dev->radio_hw_enable) { | |
3527 | b43info(dev->wl, "The hardware RF-kill button " | |
3528 | "still turns the radio physically off. " | |
3529 | "Press the button to turn it on.\n"); | |
3530 | } | |
3531 | } else { | |
19d337df | 3532 | b43_software_rfkill(dev, true); |
fda9abcf MB |
3533 | b43info(dev->wl, "Radio turned off by software\n"); |
3534 | } | |
3535 | } | |
3536 | ||
d10d0e57 MB |
3537 | out_mac_enable: |
3538 | b43_mac_enable(dev); | |
3539 | out_unlock_mutex: | |
e4d6b795 MB |
3540 | mutex_unlock(&wl->mutex); |
3541 | ||
3542 | return err; | |
3543 | } | |
3544 | ||
881d948c | 3545 | static void b43_update_basic_rates(struct b43_wldev *dev, u32 brates) |
c7ab5ef9 JB |
3546 | { |
3547 | struct ieee80211_supported_band *sband = | |
3548 | dev->wl->hw->wiphy->bands[b43_current_band(dev->wl)]; | |
3549 | struct ieee80211_rate *rate; | |
3550 | int i; | |
3551 | u16 basic, direct, offset, basic_offset, rateptr; | |
3552 | ||
3553 | for (i = 0; i < sband->n_bitrates; i++) { | |
3554 | rate = &sband->bitrates[i]; | |
3555 | ||
3556 | if (b43_is_cck_rate(rate->hw_value)) { | |
3557 | direct = B43_SHM_SH_CCKDIRECT; | |
3558 | basic = B43_SHM_SH_CCKBASIC; | |
3559 | offset = b43_plcp_get_ratecode_cck(rate->hw_value); | |
3560 | offset &= 0xF; | |
3561 | } else { | |
3562 | direct = B43_SHM_SH_OFDMDIRECT; | |
3563 | basic = B43_SHM_SH_OFDMBASIC; | |
3564 | offset = b43_plcp_get_ratecode_ofdm(rate->hw_value); | |
3565 | offset &= 0xF; | |
3566 | } | |
3567 | ||
3568 | rate = ieee80211_get_response_rate(sband, brates, rate->bitrate); | |
3569 | ||
3570 | if (b43_is_cck_rate(rate->hw_value)) { | |
3571 | basic_offset = b43_plcp_get_ratecode_cck(rate->hw_value); | |
3572 | basic_offset &= 0xF; | |
3573 | } else { | |
3574 | basic_offset = b43_plcp_get_ratecode_ofdm(rate->hw_value); | |
3575 | basic_offset &= 0xF; | |
3576 | } | |
3577 | ||
3578 | /* | |
3579 | * Get the pointer that we need to point to | |
3580 | * from the direct map | |
3581 | */ | |
3582 | rateptr = b43_shm_read16(dev, B43_SHM_SHARED, | |
3583 | direct + 2 * basic_offset); | |
3584 | /* and write it to the basic map */ | |
3585 | b43_shm_write16(dev, B43_SHM_SHARED, basic + 2 * offset, | |
3586 | rateptr); | |
3587 | } | |
3588 | } | |
3589 | ||
3590 | static void b43_op_bss_info_changed(struct ieee80211_hw *hw, | |
3591 | struct ieee80211_vif *vif, | |
3592 | struct ieee80211_bss_conf *conf, | |
3593 | u32 changed) | |
3594 | { | |
3595 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3596 | struct b43_wldev *dev; | |
c7ab5ef9 JB |
3597 | |
3598 | mutex_lock(&wl->mutex); | |
3599 | ||
3600 | dev = wl->current_dev; | |
d10d0e57 | 3601 | if (!dev || b43_status(dev) < B43_STAT_STARTED) |
c7ab5ef9 | 3602 | goto out_unlock_mutex; |
2d0ddec5 JB |
3603 | |
3604 | B43_WARN_ON(wl->vif != vif); | |
3605 | ||
3606 | if (changed & BSS_CHANGED_BSSID) { | |
2d0ddec5 JB |
3607 | if (conf->bssid) |
3608 | memcpy(wl->bssid, conf->bssid, ETH_ALEN); | |
3609 | else | |
3610 | memset(wl->bssid, 0, ETH_ALEN); | |
3f0d843b | 3611 | } |
2d0ddec5 | 3612 | |
3f0d843b JB |
3613 | if (b43_status(dev) >= B43_STAT_INITIALIZED) { |
3614 | if (changed & BSS_CHANGED_BEACON && | |
3615 | (b43_is_mode(wl, NL80211_IFTYPE_AP) || | |
3616 | b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) || | |
3617 | b43_is_mode(wl, NL80211_IFTYPE_ADHOC))) | |
3618 | b43_update_templates(wl); | |
3619 | ||
3620 | if (changed & BSS_CHANGED_BSSID) | |
2d0ddec5 | 3621 | b43_write_mac_bssid_templates(dev); |
2d0ddec5 JB |
3622 | } |
3623 | ||
c7ab5ef9 JB |
3624 | b43_mac_suspend(dev); |
3625 | ||
57c4d7b4 JB |
3626 | /* Update templates for AP/mesh mode. */ |
3627 | if (changed & BSS_CHANGED_BEACON_INT && | |
3628 | (b43_is_mode(wl, NL80211_IFTYPE_AP) || | |
3629 | b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) || | |
3630 | b43_is_mode(wl, NL80211_IFTYPE_ADHOC))) | |
3631 | b43_set_beacon_int(dev, conf->beacon_int); | |
3632 | ||
c7ab5ef9 JB |
3633 | if (changed & BSS_CHANGED_BASIC_RATES) |
3634 | b43_update_basic_rates(dev, conf->basic_rates); | |
3635 | ||
3636 | if (changed & BSS_CHANGED_ERP_SLOT) { | |
3637 | if (conf->use_short_slot) | |
3638 | b43_short_slot_timing_enable(dev); | |
3639 | else | |
3640 | b43_short_slot_timing_disable(dev); | |
3641 | } | |
3642 | ||
3643 | b43_mac_enable(dev); | |
d10d0e57 | 3644 | out_unlock_mutex: |
c7ab5ef9 | 3645 | mutex_unlock(&wl->mutex); |
c7ab5ef9 JB |
3646 | } |
3647 | ||
40faacc4 | 3648 | static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
dc822b5d JB |
3649 | struct ieee80211_vif *vif, struct ieee80211_sta *sta, |
3650 | struct ieee80211_key_conf *key) | |
e4d6b795 MB |
3651 | { |
3652 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
c6dfc9a8 | 3653 | struct b43_wldev *dev; |
e4d6b795 MB |
3654 | u8 algorithm; |
3655 | u8 index; | |
c6dfc9a8 | 3656 | int err; |
060210f9 | 3657 | static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
e4d6b795 MB |
3658 | |
3659 | if (modparam_nohwcrypt) | |
3660 | return -ENOSPC; /* User disabled HW-crypto */ | |
3661 | ||
c6dfc9a8 | 3662 | mutex_lock(&wl->mutex); |
c6dfc9a8 MB |
3663 | |
3664 | dev = wl->current_dev; | |
3665 | err = -ENODEV; | |
3666 | if (!dev || b43_status(dev) < B43_STAT_INITIALIZED) | |
3667 | goto out_unlock; | |
3668 | ||
403a3a13 | 3669 | if (dev->fw.pcm_request_failed || !dev->hwcrypto_enabled) { |
68217832 MB |
3670 | /* We don't have firmware for the crypto engine. |
3671 | * Must use software-crypto. */ | |
3672 | err = -EOPNOTSUPP; | |
3673 | goto out_unlock; | |
3674 | } | |
3675 | ||
c6dfc9a8 | 3676 | err = -EINVAL; |
e4d6b795 | 3677 | switch (key->alg) { |
e4d6b795 | 3678 | case ALG_WEP: |
e31a16d6 | 3679 | if (key->keylen == WLAN_KEY_LEN_WEP40) |
e4d6b795 MB |
3680 | algorithm = B43_SEC_ALGO_WEP40; |
3681 | else | |
3682 | algorithm = B43_SEC_ALGO_WEP104; | |
3683 | break; | |
3684 | case ALG_TKIP: | |
3685 | algorithm = B43_SEC_ALGO_TKIP; | |
3686 | break; | |
3687 | case ALG_CCMP: | |
3688 | algorithm = B43_SEC_ALGO_AES; | |
3689 | break; | |
3690 | default: | |
3691 | B43_WARN_ON(1); | |
c6dfc9a8 | 3692 | goto out_unlock; |
e4d6b795 | 3693 | } |
e4d6b795 MB |
3694 | index = (u8) (key->keyidx); |
3695 | if (index > 3) | |
e4d6b795 | 3696 | goto out_unlock; |
e4d6b795 MB |
3697 | |
3698 | switch (cmd) { | |
3699 | case SET_KEY: | |
035d0243 | 3700 | if (algorithm == B43_SEC_ALGO_TKIP && |
3701 | (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE) || | |
3702 | !modparam_hwtkip)) { | |
3703 | /* We support only pairwise key */ | |
e4d6b795 MB |
3704 | err = -EOPNOTSUPP; |
3705 | goto out_unlock; | |
3706 | } | |
3707 | ||
e808e586 | 3708 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { |
dc822b5d JB |
3709 | if (WARN_ON(!sta)) { |
3710 | err = -EOPNOTSUPP; | |
3711 | goto out_unlock; | |
3712 | } | |
e808e586 | 3713 | /* Pairwise key with an assigned MAC address. */ |
e4d6b795 | 3714 | err = b43_key_write(dev, -1, algorithm, |
dc822b5d JB |
3715 | key->key, key->keylen, |
3716 | sta->addr, key); | |
e808e586 MB |
3717 | } else { |
3718 | /* Group key */ | |
3719 | err = b43_key_write(dev, index, algorithm, | |
3720 | key->key, key->keylen, NULL, key); | |
e4d6b795 MB |
3721 | } |
3722 | if (err) | |
3723 | goto out_unlock; | |
3724 | ||
3725 | if (algorithm == B43_SEC_ALGO_WEP40 || | |
3726 | algorithm == B43_SEC_ALGO_WEP104) { | |
3727 | b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS); | |
3728 | } else { | |
3729 | b43_hf_write(dev, | |
3730 | b43_hf_read(dev) & ~B43_HF_USEDEFKEYS); | |
3731 | } | |
3732 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
035d0243 | 3733 | if (algorithm == B43_SEC_ALGO_TKIP) |
3734 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
e4d6b795 MB |
3735 | break; |
3736 | case DISABLE_KEY: { | |
3737 | err = b43_key_clear(dev, key->hw_key_idx); | |
3738 | if (err) | |
3739 | goto out_unlock; | |
3740 | break; | |
3741 | } | |
3742 | default: | |
3743 | B43_WARN_ON(1); | |
3744 | } | |
9cf7f247 | 3745 | |
e4d6b795 | 3746 | out_unlock: |
e4d6b795 MB |
3747 | if (!err) { |
3748 | b43dbg(wl, "%s hardware based encryption for keyidx: %d, " | |
e174961c | 3749 | "mac: %pM\n", |
e4d6b795 | 3750 | cmd == SET_KEY ? "Using" : "Disabling", key->keyidx, |
a1d88210 | 3751 | sta ? sta->addr : bcast_addr); |
9cf7f247 | 3752 | b43_dump_keymemory(dev); |
e4d6b795 | 3753 | } |
9cf7f247 MB |
3754 | mutex_unlock(&wl->mutex); |
3755 | ||
e4d6b795 MB |
3756 | return err; |
3757 | } | |
3758 | ||
40faacc4 MB |
3759 | static void b43_op_configure_filter(struct ieee80211_hw *hw, |
3760 | unsigned int changed, unsigned int *fflags, | |
3ac64bee | 3761 | u64 multicast) |
e4d6b795 MB |
3762 | { |
3763 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
36dbd954 | 3764 | struct b43_wldev *dev; |
e4d6b795 | 3765 | |
36dbd954 MB |
3766 | mutex_lock(&wl->mutex); |
3767 | dev = wl->current_dev; | |
4150c572 JB |
3768 | if (!dev) { |
3769 | *fflags = 0; | |
36dbd954 | 3770 | goto out_unlock; |
e4d6b795 | 3771 | } |
4150c572 | 3772 | |
4150c572 JB |
3773 | *fflags &= FIF_PROMISC_IN_BSS | |
3774 | FIF_ALLMULTI | | |
3775 | FIF_FCSFAIL | | |
3776 | FIF_PLCPFAIL | | |
3777 | FIF_CONTROL | | |
3778 | FIF_OTHER_BSS | | |
3779 | FIF_BCN_PRBRESP_PROMISC; | |
3780 | ||
3781 | changed &= FIF_PROMISC_IN_BSS | | |
3782 | FIF_ALLMULTI | | |
3783 | FIF_FCSFAIL | | |
3784 | FIF_PLCPFAIL | | |
3785 | FIF_CONTROL | | |
3786 | FIF_OTHER_BSS | | |
3787 | FIF_BCN_PRBRESP_PROMISC; | |
3788 | ||
3789 | wl->filter_flags = *fflags; | |
3790 | ||
3791 | if (changed && b43_status(dev) >= B43_STAT_INITIALIZED) | |
3792 | b43_adjust_opmode(dev); | |
36dbd954 MB |
3793 | |
3794 | out_unlock: | |
3795 | mutex_unlock(&wl->mutex); | |
e4d6b795 MB |
3796 | } |
3797 | ||
36dbd954 MB |
3798 | /* Locking: wl->mutex |
3799 | * Returns the current dev. This might be different from the passed in dev, | |
3800 | * because the core might be gone away while we unlocked the mutex. */ | |
3801 | static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev) | |
e4d6b795 MB |
3802 | { |
3803 | struct b43_wl *wl = dev->wl; | |
36dbd954 | 3804 | struct b43_wldev *orig_dev; |
e4d6b795 | 3805 | |
36dbd954 MB |
3806 | redo: |
3807 | if (!dev || b43_status(dev) < B43_STAT_STARTED) | |
3808 | return dev; | |
a19d12d7 | 3809 | |
f5d40eed | 3810 | /* Cancel work. Unlock to avoid deadlocks. */ |
36dbd954 MB |
3811 | mutex_unlock(&wl->mutex); |
3812 | cancel_delayed_work_sync(&dev->periodic_work); | |
f5d40eed | 3813 | cancel_work_sync(&wl->tx_work); |
36dbd954 MB |
3814 | mutex_lock(&wl->mutex); |
3815 | dev = wl->current_dev; | |
3816 | if (!dev || b43_status(dev) < B43_STAT_STARTED) { | |
3817 | /* Whoops, aliens ate up the device while we were unlocked. */ | |
3818 | return dev; | |
3819 | } | |
a19d12d7 | 3820 | |
36dbd954 | 3821 | /* Disable interrupts on the device. */ |
e4d6b795 | 3822 | b43_set_status(dev, B43_STAT_INITIALIZED); |
36dbd954 MB |
3823 | if (0 /*FIXME dev->dev->bus->bustype == SSB_BUSTYPE_SDIO*/) { |
3824 | /* wl->mutex is locked. That is enough. */ | |
3825 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0); | |
3826 | b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */ | |
3827 | } else { | |
3828 | spin_lock_irq(&wl->hardirq_lock); | |
3829 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0); | |
3830 | b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */ | |
3831 | spin_unlock_irq(&wl->hardirq_lock); | |
3832 | } | |
3833 | /* Synchronize the interrupt handlers. Unlock to avoid deadlocks. */ | |
3834 | orig_dev = dev; | |
e4d6b795 | 3835 | mutex_unlock(&wl->mutex); |
36dbd954 | 3836 | synchronize_irq(dev->dev->irq); |
e4d6b795 | 3837 | mutex_lock(&wl->mutex); |
36dbd954 MB |
3838 | dev = wl->current_dev; |
3839 | if (!dev) | |
3840 | return dev; | |
3841 | if (dev != orig_dev) { | |
3842 | if (b43_status(dev) >= B43_STAT_STARTED) | |
3843 | goto redo; | |
3844 | return dev; | |
3845 | } | |
3846 | B43_WARN_ON(b43_read32(dev, B43_MMIO_GEN_IRQ_MASK)); | |
e4d6b795 | 3847 | |
f5d40eed MB |
3848 | /* Drain the TX queue */ |
3849 | while (skb_queue_len(&wl->tx_queue)) | |
3850 | dev_kfree_skb(skb_dequeue(&wl->tx_queue)); | |
3851 | ||
e4d6b795 MB |
3852 | b43_mac_suspend(dev); |
3853 | free_irq(dev->dev->irq, dev); | |
3854 | b43dbg(wl, "Wireless interface stopped\n"); | |
36dbd954 MB |
3855 | |
3856 | return dev; | |
e4d6b795 MB |
3857 | } |
3858 | ||
3859 | /* Locking: wl->mutex */ | |
3860 | static int b43_wireless_core_start(struct b43_wldev *dev) | |
3861 | { | |
3862 | int err; | |
3863 | ||
3864 | B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED); | |
3865 | ||
3866 | drain_txstatus_queue(dev); | |
36dbd954 MB |
3867 | err = request_threaded_irq(dev->dev->irq, b43_interrupt_handler, |
3868 | b43_interrupt_thread_handler, | |
3869 | IRQF_SHARED, KBUILD_MODNAME, dev); | |
e4d6b795 MB |
3870 | if (err) { |
3871 | b43err(dev->wl, "Cannot request IRQ-%d\n", dev->dev->irq); | |
3872 | goto out; | |
3873 | } | |
3874 | ||
3875 | /* We are ready to run. */ | |
3876 | b43_set_status(dev, B43_STAT_STARTED); | |
3877 | ||
3878 | /* Start data flow (TX/RX). */ | |
3879 | b43_mac_enable(dev); | |
13790728 | 3880 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); |
e4d6b795 MB |
3881 | |
3882 | /* Start maintainance work */ | |
3883 | b43_periodic_tasks_setup(dev); | |
3884 | ||
3885 | b43dbg(dev->wl, "Wireless interface started\n"); | |
3886 | out: | |
3887 | return err; | |
3888 | } | |
3889 | ||
3890 | /* Get PHY and RADIO versioning numbers */ | |
3891 | static int b43_phy_versioning(struct b43_wldev *dev) | |
3892 | { | |
3893 | struct b43_phy *phy = &dev->phy; | |
3894 | u32 tmp; | |
3895 | u8 analog_type; | |
3896 | u8 phy_type; | |
3897 | u8 phy_rev; | |
3898 | u16 radio_manuf; | |
3899 | u16 radio_ver; | |
3900 | u16 radio_rev; | |
3901 | int unsupported = 0; | |
3902 | ||
3903 | /* Get PHY versioning */ | |
3904 | tmp = b43_read16(dev, B43_MMIO_PHY_VER); | |
3905 | analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT; | |
3906 | phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT; | |
3907 | phy_rev = (tmp & B43_PHYVER_VERSION); | |
3908 | switch (phy_type) { | |
3909 | case B43_PHYTYPE_A: | |
3910 | if (phy_rev >= 4) | |
3911 | unsupported = 1; | |
3912 | break; | |
3913 | case B43_PHYTYPE_B: | |
3914 | if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6 | |
3915 | && phy_rev != 7) | |
3916 | unsupported = 1; | |
3917 | break; | |
3918 | case B43_PHYTYPE_G: | |
013978b6 | 3919 | if (phy_rev > 9) |
e4d6b795 MB |
3920 | unsupported = 1; |
3921 | break; | |
d5c71e46 MB |
3922 | #ifdef CONFIG_B43_NPHY |
3923 | case B43_PHYTYPE_N: | |
bb519bee | 3924 | if (phy_rev > 4) |
d5c71e46 MB |
3925 | unsupported = 1; |
3926 | break; | |
6b1c7c67 MB |
3927 | #endif |
3928 | #ifdef CONFIG_B43_PHY_LP | |
3929 | case B43_PHYTYPE_LP: | |
9d86a2d5 | 3930 | if (phy_rev > 2) |
6b1c7c67 MB |
3931 | unsupported = 1; |
3932 | break; | |
d5c71e46 | 3933 | #endif |
e4d6b795 MB |
3934 | default: |
3935 | unsupported = 1; | |
3936 | }; | |
3937 | if (unsupported) { | |
3938 | b43err(dev->wl, "FOUND UNSUPPORTED PHY " | |
3939 | "(Analog %u, Type %u, Revision %u)\n", | |
3940 | analog_type, phy_type, phy_rev); | |
3941 | return -EOPNOTSUPP; | |
3942 | } | |
3943 | b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n", | |
3944 | analog_type, phy_type, phy_rev); | |
3945 | ||
3946 | /* Get RADIO versioning */ | |
3947 | if (dev->dev->bus->chip_id == 0x4317) { | |
3948 | if (dev->dev->bus->chip_rev == 0) | |
3949 | tmp = 0x3205017F; | |
3950 | else if (dev->dev->bus->chip_rev == 1) | |
3951 | tmp = 0x4205017F; | |
3952 | else | |
3953 | tmp = 0x5205017F; | |
3954 | } else { | |
3955 | b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID); | |
243dcfcc | 3956 | tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW); |
e4d6b795 | 3957 | b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID); |
243dcfcc | 3958 | tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH) << 16; |
e4d6b795 MB |
3959 | } |
3960 | radio_manuf = (tmp & 0x00000FFF); | |
3961 | radio_ver = (tmp & 0x0FFFF000) >> 12; | |
3962 | radio_rev = (tmp & 0xF0000000) >> 28; | |
96c755a3 MB |
3963 | if (radio_manuf != 0x17F /* Broadcom */) |
3964 | unsupported = 1; | |
e4d6b795 MB |
3965 | switch (phy_type) { |
3966 | case B43_PHYTYPE_A: | |
3967 | if (radio_ver != 0x2060) | |
3968 | unsupported = 1; | |
3969 | if (radio_rev != 1) | |
3970 | unsupported = 1; | |
3971 | if (radio_manuf != 0x17F) | |
3972 | unsupported = 1; | |
3973 | break; | |
3974 | case B43_PHYTYPE_B: | |
3975 | if ((radio_ver & 0xFFF0) != 0x2050) | |
3976 | unsupported = 1; | |
3977 | break; | |
3978 | case B43_PHYTYPE_G: | |
3979 | if (radio_ver != 0x2050) | |
3980 | unsupported = 1; | |
3981 | break; | |
96c755a3 | 3982 | case B43_PHYTYPE_N: |
bb519bee | 3983 | if (radio_ver != 0x2055 && radio_ver != 0x2056) |
96c755a3 MB |
3984 | unsupported = 1; |
3985 | break; | |
6b1c7c67 | 3986 | case B43_PHYTYPE_LP: |
9d86a2d5 | 3987 | if (radio_ver != 0x2062 && radio_ver != 0x2063) |
6b1c7c67 MB |
3988 | unsupported = 1; |
3989 | break; | |
e4d6b795 MB |
3990 | default: |
3991 | B43_WARN_ON(1); | |
3992 | } | |
3993 | if (unsupported) { | |
3994 | b43err(dev->wl, "FOUND UNSUPPORTED RADIO " | |
3995 | "(Manuf 0x%X, Version 0x%X, Revision %u)\n", | |
3996 | radio_manuf, radio_ver, radio_rev); | |
3997 | return -EOPNOTSUPP; | |
3998 | } | |
3999 | b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n", | |
4000 | radio_manuf, radio_ver, radio_rev); | |
4001 | ||
4002 | phy->radio_manuf = radio_manuf; | |
4003 | phy->radio_ver = radio_ver; | |
4004 | phy->radio_rev = radio_rev; | |
4005 | ||
4006 | phy->analog = analog_type; | |
4007 | phy->type = phy_type; | |
4008 | phy->rev = phy_rev; | |
4009 | ||
4010 | return 0; | |
4011 | } | |
4012 | ||
4013 | static void setup_struct_phy_for_init(struct b43_wldev *dev, | |
4014 | struct b43_phy *phy) | |
4015 | { | |
e4d6b795 | 4016 | phy->hardware_power_control = !!modparam_hwpctl; |
18c8adeb | 4017 | phy->next_txpwr_check_time = jiffies; |
8ed7fc48 MB |
4018 | /* PHY TX errors counter. */ |
4019 | atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT); | |
591f3dc2 MB |
4020 | |
4021 | #if B43_DEBUG | |
4022 | phy->phy_locked = 0; | |
4023 | phy->radio_locked = 0; | |
4024 | #endif | |
e4d6b795 MB |
4025 | } |
4026 | ||
4027 | static void setup_struct_wldev_for_init(struct b43_wldev *dev) | |
4028 | { | |
aa6c7ae2 MB |
4029 | dev->dfq_valid = 0; |
4030 | ||
6a724d68 MB |
4031 | /* Assume the radio is enabled. If it's not enabled, the state will |
4032 | * immediately get fixed on the first periodic work run. */ | |
4033 | dev->radio_hw_enable = 1; | |
e4d6b795 MB |
4034 | |
4035 | /* Stats */ | |
4036 | memset(&dev->stats, 0, sizeof(dev->stats)); | |
4037 | ||
4038 | setup_struct_phy_for_init(dev, &dev->phy); | |
4039 | ||
4040 | /* IRQ related flags */ | |
4041 | dev->irq_reason = 0; | |
4042 | memset(dev->dma_reason, 0, sizeof(dev->dma_reason)); | |
13790728 | 4043 | dev->irq_mask = B43_IRQ_MASKTEMPLATE; |
3e3ccb3d | 4044 | if (b43_modparam_verbose < B43_VERBOSITY_DEBUG) |
13790728 | 4045 | dev->irq_mask &= ~B43_IRQ_PHY_TXERR; |
e4d6b795 MB |
4046 | |
4047 | dev->mac_suspended = 1; | |
4048 | ||
4049 | /* Noise calculation context */ | |
4050 | memset(&dev->noisecalc, 0, sizeof(dev->noisecalc)); | |
4051 | } | |
4052 | ||
4053 | static void b43_bluetooth_coext_enable(struct b43_wldev *dev) | |
4054 | { | |
4055 | struct ssb_sprom *sprom = &dev->dev->bus->sprom; | |
a259d6a4 | 4056 | u64 hf; |
e4d6b795 | 4057 | |
1855ba78 MB |
4058 | if (!modparam_btcoex) |
4059 | return; | |
95de2841 | 4060 | if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST)) |
e4d6b795 MB |
4061 | return; |
4062 | if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode) | |
4063 | return; | |
4064 | ||
4065 | hf = b43_hf_read(dev); | |
95de2841 | 4066 | if (sprom->boardflags_lo & B43_BFL_BTCMOD) |
e4d6b795 MB |
4067 | hf |= B43_HF_BTCOEXALT; |
4068 | else | |
4069 | hf |= B43_HF_BTCOEX; | |
4070 | b43_hf_write(dev, hf); | |
e4d6b795 MB |
4071 | } |
4072 | ||
4073 | static void b43_bluetooth_coext_disable(struct b43_wldev *dev) | |
1855ba78 MB |
4074 | { |
4075 | if (!modparam_btcoex) | |
4076 | return; | |
4077 | //TODO | |
e4d6b795 MB |
4078 | } |
4079 | ||
4080 | static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev) | |
4081 | { | |
4082 | #ifdef CONFIG_SSB_DRIVER_PCICORE | |
4083 | struct ssb_bus *bus = dev->dev->bus; | |
4084 | u32 tmp; | |
4085 | ||
4086 | if (bus->pcicore.dev && | |
4087 | bus->pcicore.dev->id.coreid == SSB_DEV_PCI && | |
4088 | bus->pcicore.dev->id.revision <= 5) { | |
4089 | /* IMCFGLO timeouts workaround. */ | |
4090 | tmp = ssb_read32(dev->dev, SSB_IMCFGLO); | |
e4d6b795 MB |
4091 | switch (bus->bustype) { |
4092 | case SSB_BUSTYPE_PCI: | |
4093 | case SSB_BUSTYPE_PCMCIA: | |
98a1e2a9 MB |
4094 | tmp &= ~SSB_IMCFGLO_REQTO; |
4095 | tmp &= ~SSB_IMCFGLO_SERTO; | |
e4d6b795 MB |
4096 | tmp |= 0x32; |
4097 | break; | |
4098 | case SSB_BUSTYPE_SSB: | |
98a1e2a9 MB |
4099 | tmp &= ~SSB_IMCFGLO_REQTO; |
4100 | tmp &= ~SSB_IMCFGLO_SERTO; | |
e4d6b795 MB |
4101 | tmp |= 0x53; |
4102 | break; | |
98a1e2a9 MB |
4103 | default: |
4104 | break; | |
e4d6b795 MB |
4105 | } |
4106 | ssb_write32(dev->dev, SSB_IMCFGLO, tmp); | |
4107 | } | |
4108 | #endif /* CONFIG_SSB_DRIVER_PCICORE */ | |
4109 | } | |
4110 | ||
d59f720d MB |
4111 | static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle) |
4112 | { | |
4113 | u16 pu_delay; | |
4114 | ||
4115 | /* The time value is in microseconds. */ | |
4116 | if (dev->phy.type == B43_PHYTYPE_A) | |
4117 | pu_delay = 3700; | |
4118 | else | |
4119 | pu_delay = 1050; | |
05c914fe | 4120 | if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC) || idle) |
d59f720d MB |
4121 | pu_delay = 500; |
4122 | if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8)) | |
4123 | pu_delay = max(pu_delay, (u16)2400); | |
4124 | ||
4125 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay); | |
4126 | } | |
4127 | ||
4128 | /* Set the TSF CFP pre-TargetBeaconTransmissionTime. */ | |
4129 | static void b43_set_pretbtt(struct b43_wldev *dev) | |
4130 | { | |
4131 | u16 pretbtt; | |
4132 | ||
4133 | /* The time value is in microseconds. */ | |
05c914fe | 4134 | if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) { |
d59f720d MB |
4135 | pretbtt = 2; |
4136 | } else { | |
4137 | if (dev->phy.type == B43_PHYTYPE_A) | |
4138 | pretbtt = 120; | |
4139 | else | |
4140 | pretbtt = 250; | |
4141 | } | |
4142 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt); | |
4143 | b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt); | |
4144 | } | |
4145 | ||
e4d6b795 MB |
4146 | /* Shutdown a wireless core */ |
4147 | /* Locking: wl->mutex */ | |
4148 | static void b43_wireless_core_exit(struct b43_wldev *dev) | |
4149 | { | |
1f7d87b0 | 4150 | u32 macctl; |
e4d6b795 | 4151 | |
36dbd954 MB |
4152 | B43_WARN_ON(dev && b43_status(dev) > B43_STAT_INITIALIZED); |
4153 | if (!dev || b43_status(dev) != B43_STAT_INITIALIZED) | |
e4d6b795 MB |
4154 | return; |
4155 | b43_set_status(dev, B43_STAT_UNINIT); | |
4156 | ||
1f7d87b0 MB |
4157 | /* Stop the microcode PSM. */ |
4158 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
4159 | macctl &= ~B43_MACCTL_PSM_RUN; | |
4160 | macctl |= B43_MACCTL_PSM_JMP0; | |
4161 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
4162 | ||
3506e0c4 RW |
4163 | if (!dev->suspend_in_progress) { |
4164 | b43_leds_exit(dev); | |
b844eba2 | 4165 | b43_rng_exit(dev->wl); |
3506e0c4 | 4166 | } |
e4d6b795 | 4167 | b43_dma_free(dev); |
5100d5ac | 4168 | b43_pio_free(dev); |
e4d6b795 | 4169 | b43_chip_exit(dev); |
cb24f57f | 4170 | dev->phy.ops->switch_analog(dev, 0); |
e66fee6a MB |
4171 | if (dev->wl->current_beacon) { |
4172 | dev_kfree_skb_any(dev->wl->current_beacon); | |
4173 | dev->wl->current_beacon = NULL; | |
4174 | } | |
4175 | ||
e4d6b795 MB |
4176 | ssb_device_disable(dev->dev, 0); |
4177 | ssb_bus_may_powerdown(dev->dev->bus); | |
4178 | } | |
4179 | ||
4180 | /* Initialize a wireless core */ | |
4181 | static int b43_wireless_core_init(struct b43_wldev *dev) | |
4182 | { | |
4183 | struct b43_wl *wl = dev->wl; | |
4184 | struct ssb_bus *bus = dev->dev->bus; | |
4185 | struct ssb_sprom *sprom = &bus->sprom; | |
4186 | struct b43_phy *phy = &dev->phy; | |
4187 | int err; | |
a259d6a4 MB |
4188 | u64 hf; |
4189 | u32 tmp; | |
e4d6b795 MB |
4190 | |
4191 | B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT); | |
4192 | ||
4193 | err = ssb_bus_powerup(bus, 0); | |
4194 | if (err) | |
4195 | goto out; | |
4196 | if (!ssb_device_is_enabled(dev->dev)) { | |
4197 | tmp = phy->gmode ? B43_TMSLOW_GMODE : 0; | |
4198 | b43_wireless_core_reset(dev, tmp); | |
4199 | } | |
4200 | ||
fb11137a | 4201 | /* Reset all data structures. */ |
e4d6b795 | 4202 | setup_struct_wldev_for_init(dev); |
fb11137a | 4203 | phy->ops->prepare_structs(dev); |
e4d6b795 MB |
4204 | |
4205 | /* Enable IRQ routing to this device. */ | |
4206 | ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev); | |
4207 | ||
4208 | b43_imcfglo_timeouts_workaround(dev); | |
4209 | b43_bluetooth_coext_disable(dev); | |
fb11137a MB |
4210 | if (phy->ops->prepare_hardware) { |
4211 | err = phy->ops->prepare_hardware(dev); | |
ef1a628d | 4212 | if (err) |
fb11137a | 4213 | goto err_busdown; |
ef1a628d | 4214 | } |
e4d6b795 MB |
4215 | err = b43_chip_init(dev); |
4216 | if (err) | |
fb11137a | 4217 | goto err_busdown; |
e4d6b795 MB |
4218 | b43_shm_write16(dev, B43_SHM_SHARED, |
4219 | B43_SHM_SH_WLCOREREV, dev->dev->id.revision); | |
4220 | hf = b43_hf_read(dev); | |
4221 | if (phy->type == B43_PHYTYPE_G) { | |
4222 | hf |= B43_HF_SYMW; | |
4223 | if (phy->rev == 1) | |
4224 | hf |= B43_HF_GDCW; | |
95de2841 | 4225 | if (sprom->boardflags_lo & B43_BFL_PACTRL) |
e4d6b795 | 4226 | hf |= B43_HF_OFDMPABOOST; |
969d15cf MB |
4227 | } |
4228 | if (phy->radio_ver == 0x2050) { | |
4229 | if (phy->radio_rev == 6) | |
4230 | hf |= B43_HF_4318TSSI; | |
4231 | if (phy->radio_rev < 6) | |
4232 | hf |= B43_HF_VCORECALC; | |
e4d6b795 | 4233 | } |
1cc8f476 MB |
4234 | if (sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW) |
4235 | hf |= B43_HF_DSCRQ; /* Disable slowclock requests from ucode. */ | |
1a77733c | 4236 | #ifdef CONFIG_SSB_DRIVER_PCICORE |
8821905c MB |
4237 | if ((bus->bustype == SSB_BUSTYPE_PCI) && |
4238 | (bus->pcicore.dev->id.revision <= 10)) | |
4239 | hf |= B43_HF_PCISCW; /* PCI slow clock workaround. */ | |
1a77733c | 4240 | #endif |
25d3ef59 | 4241 | hf &= ~B43_HF_SKCFPUP; |
e4d6b795 MB |
4242 | b43_hf_write(dev, hf); |
4243 | ||
74cfdba7 MB |
4244 | b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT, |
4245 | B43_DEFAULT_LONG_RETRY_LIMIT); | |
e4d6b795 MB |
4246 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3); |
4247 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2); | |
4248 | ||
4249 | /* Disable sending probe responses from firmware. | |
4250 | * Setting the MaxTime to one usec will always trigger | |
4251 | * a timeout, so we never send any probe resp. | |
4252 | * A timeout of zero is infinite. */ | |
4253 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1); | |
4254 | ||
4255 | b43_rate_memory_init(dev); | |
5042c507 | 4256 | b43_set_phytxctl_defaults(dev); |
e4d6b795 MB |
4257 | |
4258 | /* Minimum Contention Window */ | |
4259 | if (phy->type == B43_PHYTYPE_B) { | |
4260 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F); | |
4261 | } else { | |
4262 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF); | |
4263 | } | |
4264 | /* Maximum Contention Window */ | |
4265 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF); | |
4266 | ||
5100d5ac MB |
4267 | if ((dev->dev->bus->bustype == SSB_BUSTYPE_PCMCIA) || B43_FORCE_PIO) { |
4268 | dev->__using_pio_transfers = 1; | |
4269 | err = b43_pio_init(dev); | |
4270 | } else { | |
4271 | dev->__using_pio_transfers = 0; | |
4272 | err = b43_dma_init(dev); | |
4273 | } | |
e4d6b795 MB |
4274 | if (err) |
4275 | goto err_chip_exit; | |
03b29773 | 4276 | b43_qos_init(dev); |
d59f720d | 4277 | b43_set_synth_pu_delay(dev, 1); |
e4d6b795 MB |
4278 | b43_bluetooth_coext_enable(dev); |
4279 | ||
1cc8f476 | 4280 | ssb_bus_powerup(bus, !(sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW)); |
4150c572 | 4281 | b43_upload_card_macaddress(dev); |
e4d6b795 | 4282 | b43_security_init(dev); |
3506e0c4 RW |
4283 | if (!dev->suspend_in_progress) |
4284 | b43_rng_init(wl); | |
e4d6b795 | 4285 | |
5ab9549a MB |
4286 | ieee80211_wake_queues(dev->wl->hw); |
4287 | ||
e4d6b795 MB |
4288 | b43_set_status(dev, B43_STAT_INITIALIZED); |
4289 | ||
3506e0c4 RW |
4290 | if (!dev->suspend_in_progress) |
4291 | b43_leds_init(dev); | |
1a8d1227 | 4292 | out: |
e4d6b795 MB |
4293 | return err; |
4294 | ||
ef1a628d | 4295 | err_chip_exit: |
e4d6b795 | 4296 | b43_chip_exit(dev); |
ef1a628d | 4297 | err_busdown: |
e4d6b795 MB |
4298 | ssb_bus_may_powerdown(bus); |
4299 | B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT); | |
4300 | return err; | |
4301 | } | |
4302 | ||
40faacc4 MB |
4303 | static int b43_op_add_interface(struct ieee80211_hw *hw, |
4304 | struct ieee80211_if_init_conf *conf) | |
e4d6b795 MB |
4305 | { |
4306 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4307 | struct b43_wldev *dev; | |
e4d6b795 | 4308 | int err = -EOPNOTSUPP; |
4150c572 JB |
4309 | |
4310 | /* TODO: allow WDS/AP devices to coexist */ | |
4311 | ||
05c914fe JB |
4312 | if (conf->type != NL80211_IFTYPE_AP && |
4313 | conf->type != NL80211_IFTYPE_MESH_POINT && | |
4314 | conf->type != NL80211_IFTYPE_STATION && | |
4315 | conf->type != NL80211_IFTYPE_WDS && | |
4316 | conf->type != NL80211_IFTYPE_ADHOC) | |
4150c572 | 4317 | return -EOPNOTSUPP; |
e4d6b795 MB |
4318 | |
4319 | mutex_lock(&wl->mutex); | |
4150c572 | 4320 | if (wl->operating) |
e4d6b795 MB |
4321 | goto out_mutex_unlock; |
4322 | ||
4323 | b43dbg(wl, "Adding Interface type %d\n", conf->type); | |
4324 | ||
4325 | dev = wl->current_dev; | |
4150c572 | 4326 | wl->operating = 1; |
32bfd35d | 4327 | wl->vif = conf->vif; |
4150c572 JB |
4328 | wl->if_type = conf->type; |
4329 | memcpy(wl->mac_addr, conf->mac_addr, ETH_ALEN); | |
4330 | ||
4150c572 | 4331 | b43_adjust_opmode(dev); |
d59f720d MB |
4332 | b43_set_pretbtt(dev); |
4333 | b43_set_synth_pu_delay(dev, 0); | |
4150c572 | 4334 | b43_upload_card_macaddress(dev); |
4150c572 JB |
4335 | |
4336 | err = 0; | |
4337 | out_mutex_unlock: | |
4338 | mutex_unlock(&wl->mutex); | |
4339 | ||
4340 | return err; | |
4341 | } | |
4342 | ||
40faacc4 MB |
4343 | static void b43_op_remove_interface(struct ieee80211_hw *hw, |
4344 | struct ieee80211_if_init_conf *conf) | |
4150c572 JB |
4345 | { |
4346 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4347 | struct b43_wldev *dev = wl->current_dev; | |
4150c572 JB |
4348 | |
4349 | b43dbg(wl, "Removing Interface type %d\n", conf->type); | |
4350 | ||
4351 | mutex_lock(&wl->mutex); | |
4352 | ||
4353 | B43_WARN_ON(!wl->operating); | |
32bfd35d JB |
4354 | B43_WARN_ON(wl->vif != conf->vif); |
4355 | wl->vif = NULL; | |
4150c572 JB |
4356 | |
4357 | wl->operating = 0; | |
4358 | ||
4150c572 JB |
4359 | b43_adjust_opmode(dev); |
4360 | memset(wl->mac_addr, 0, ETH_ALEN); | |
4361 | b43_upload_card_macaddress(dev); | |
4150c572 JB |
4362 | |
4363 | mutex_unlock(&wl->mutex); | |
4364 | } | |
4365 | ||
40faacc4 | 4366 | static int b43_op_start(struct ieee80211_hw *hw) |
4150c572 JB |
4367 | { |
4368 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4369 | struct b43_wldev *dev = wl->current_dev; | |
4370 | int did_init = 0; | |
923403b8 | 4371 | int err = 0; |
4150c572 | 4372 | |
7be1bb6b MB |
4373 | /* Kill all old instance specific information to make sure |
4374 | * the card won't use it in the short timeframe between start | |
4375 | * and mac80211 reconfiguring it. */ | |
4376 | memset(wl->bssid, 0, ETH_ALEN); | |
4377 | memset(wl->mac_addr, 0, ETH_ALEN); | |
4378 | wl->filter_flags = 0; | |
4379 | wl->radiotap_enabled = 0; | |
e6f5b934 | 4380 | b43_qos_clear(wl); |
6b4bec01 MB |
4381 | wl->beacon0_uploaded = 0; |
4382 | wl->beacon1_uploaded = 0; | |
4383 | wl->beacon_templates_virgin = 1; | |
fd4973c5 | 4384 | wl->radio_enabled = 1; |
7be1bb6b | 4385 | |
4150c572 JB |
4386 | mutex_lock(&wl->mutex); |
4387 | ||
e4d6b795 MB |
4388 | if (b43_status(dev) < B43_STAT_INITIALIZED) { |
4389 | err = b43_wireless_core_init(dev); | |
f41f3f37 | 4390 | if (err) |
e4d6b795 MB |
4391 | goto out_mutex_unlock; |
4392 | did_init = 1; | |
4393 | } | |
4150c572 | 4394 | |
e4d6b795 MB |
4395 | if (b43_status(dev) < B43_STAT_STARTED) { |
4396 | err = b43_wireless_core_start(dev); | |
4397 | if (err) { | |
4398 | if (did_init) | |
4399 | b43_wireless_core_exit(dev); | |
4400 | goto out_mutex_unlock; | |
4401 | } | |
4402 | } | |
4403 | ||
f41f3f37 JB |
4404 | /* XXX: only do if device doesn't support rfkill irq */ |
4405 | wiphy_rfkill_start_polling(hw->wiphy); | |
4406 | ||
4150c572 | 4407 | out_mutex_unlock: |
e4d6b795 MB |
4408 | mutex_unlock(&wl->mutex); |
4409 | ||
4410 | return err; | |
4411 | } | |
4412 | ||
40faacc4 | 4413 | static void b43_op_stop(struct ieee80211_hw *hw) |
e4d6b795 MB |
4414 | { |
4415 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4150c572 | 4416 | struct b43_wldev *dev = wl->current_dev; |
e4d6b795 | 4417 | |
a82d9922 | 4418 | cancel_work_sync(&(wl->beacon_update_trigger)); |
1a8d1227 | 4419 | |
e4d6b795 | 4420 | mutex_lock(&wl->mutex); |
36dbd954 MB |
4421 | if (b43_status(dev) >= B43_STAT_STARTED) { |
4422 | dev = b43_wireless_core_stop(dev); | |
4423 | if (!dev) | |
4424 | goto out_unlock; | |
4425 | } | |
4150c572 | 4426 | b43_wireless_core_exit(dev); |
fd4973c5 | 4427 | wl->radio_enabled = 0; |
36dbd954 MB |
4428 | |
4429 | out_unlock: | |
e4d6b795 | 4430 | mutex_unlock(&wl->mutex); |
18c8adeb MB |
4431 | |
4432 | cancel_work_sync(&(wl->txpower_adjust_work)); | |
e4d6b795 MB |
4433 | } |
4434 | ||
17741cdc JB |
4435 | static int b43_op_beacon_set_tim(struct ieee80211_hw *hw, |
4436 | struct ieee80211_sta *sta, bool set) | |
e66fee6a MB |
4437 | { |
4438 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4439 | ||
36dbd954 | 4440 | mutex_lock(&wl->mutex); |
9d139c81 | 4441 | b43_update_templates(wl); |
36dbd954 | 4442 | mutex_unlock(&wl->mutex); |
e66fee6a MB |
4443 | |
4444 | return 0; | |
4445 | } | |
4446 | ||
38968d09 JB |
4447 | static void b43_op_sta_notify(struct ieee80211_hw *hw, |
4448 | struct ieee80211_vif *vif, | |
4449 | enum sta_notify_cmd notify_cmd, | |
17741cdc | 4450 | struct ieee80211_sta *sta) |
38968d09 JB |
4451 | { |
4452 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4453 | ||
4454 | B43_WARN_ON(!vif || wl->vif != vif); | |
4455 | } | |
4456 | ||
25d3ef59 MB |
4457 | static void b43_op_sw_scan_start_notifier(struct ieee80211_hw *hw) |
4458 | { | |
4459 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4460 | struct b43_wldev *dev; | |
4461 | ||
4462 | mutex_lock(&wl->mutex); | |
4463 | dev = wl->current_dev; | |
4464 | if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) { | |
4465 | /* Disable CFP update during scan on other channels. */ | |
4466 | b43_hf_write(dev, b43_hf_read(dev) | B43_HF_SKCFPUP); | |
4467 | } | |
4468 | mutex_unlock(&wl->mutex); | |
4469 | } | |
4470 | ||
4471 | static void b43_op_sw_scan_complete_notifier(struct ieee80211_hw *hw) | |
4472 | { | |
4473 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4474 | struct b43_wldev *dev; | |
4475 | ||
4476 | mutex_lock(&wl->mutex); | |
4477 | dev = wl->current_dev; | |
4478 | if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) { | |
4479 | /* Re-enable CFP update. */ | |
4480 | b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_SKCFPUP); | |
4481 | } | |
4482 | mutex_unlock(&wl->mutex); | |
4483 | } | |
4484 | ||
e4d6b795 | 4485 | static const struct ieee80211_ops b43_hw_ops = { |
40faacc4 MB |
4486 | .tx = b43_op_tx, |
4487 | .conf_tx = b43_op_conf_tx, | |
4488 | .add_interface = b43_op_add_interface, | |
4489 | .remove_interface = b43_op_remove_interface, | |
4490 | .config = b43_op_config, | |
c7ab5ef9 | 4491 | .bss_info_changed = b43_op_bss_info_changed, |
40faacc4 MB |
4492 | .configure_filter = b43_op_configure_filter, |
4493 | .set_key = b43_op_set_key, | |
035d0243 | 4494 | .update_tkip_key = b43_op_update_tkip_key, |
40faacc4 MB |
4495 | .get_stats = b43_op_get_stats, |
4496 | .get_tx_stats = b43_op_get_tx_stats, | |
08e87a83 AF |
4497 | .get_tsf = b43_op_get_tsf, |
4498 | .set_tsf = b43_op_set_tsf, | |
40faacc4 MB |
4499 | .start = b43_op_start, |
4500 | .stop = b43_op_stop, | |
e66fee6a | 4501 | .set_tim = b43_op_beacon_set_tim, |
38968d09 | 4502 | .sta_notify = b43_op_sta_notify, |
25d3ef59 MB |
4503 | .sw_scan_start = b43_op_sw_scan_start_notifier, |
4504 | .sw_scan_complete = b43_op_sw_scan_complete_notifier, | |
f41f3f37 | 4505 | .rfkill_poll = b43_rfkill_poll, |
e4d6b795 MB |
4506 | }; |
4507 | ||
4508 | /* Hard-reset the chip. Do not call this directly. | |
4509 | * Use b43_controller_restart() | |
4510 | */ | |
4511 | static void b43_chip_reset(struct work_struct *work) | |
4512 | { | |
4513 | struct b43_wldev *dev = | |
4514 | container_of(work, struct b43_wldev, restart_work); | |
4515 | struct b43_wl *wl = dev->wl; | |
4516 | int err = 0; | |
4517 | int prev_status; | |
4518 | ||
4519 | mutex_lock(&wl->mutex); | |
4520 | ||
4521 | prev_status = b43_status(dev); | |
4522 | /* Bring the device down... */ | |
36dbd954 MB |
4523 | if (prev_status >= B43_STAT_STARTED) { |
4524 | dev = b43_wireless_core_stop(dev); | |
4525 | if (!dev) { | |
4526 | err = -ENODEV; | |
4527 | goto out; | |
4528 | } | |
4529 | } | |
e4d6b795 MB |
4530 | if (prev_status >= B43_STAT_INITIALIZED) |
4531 | b43_wireless_core_exit(dev); | |
4532 | ||
4533 | /* ...and up again. */ | |
4534 | if (prev_status >= B43_STAT_INITIALIZED) { | |
4535 | err = b43_wireless_core_init(dev); | |
4536 | if (err) | |
4537 | goto out; | |
4538 | } | |
4539 | if (prev_status >= B43_STAT_STARTED) { | |
4540 | err = b43_wireless_core_start(dev); | |
4541 | if (err) { | |
4542 | b43_wireless_core_exit(dev); | |
4543 | goto out; | |
4544 | } | |
4545 | } | |
3bf0a32e MB |
4546 | out: |
4547 | if (err) | |
4548 | wl->current_dev = NULL; /* Failed to init the dev. */ | |
e4d6b795 MB |
4549 | mutex_unlock(&wl->mutex); |
4550 | if (err) | |
4551 | b43err(wl, "Controller restart FAILED\n"); | |
4552 | else | |
4553 | b43info(wl, "Controller restarted\n"); | |
4554 | } | |
4555 | ||
bb1eeff1 | 4556 | static int b43_setup_bands(struct b43_wldev *dev, |
96c755a3 | 4557 | bool have_2ghz_phy, bool have_5ghz_phy) |
e4d6b795 MB |
4558 | { |
4559 | struct ieee80211_hw *hw = dev->wl->hw; | |
e4d6b795 | 4560 | |
bb1eeff1 MB |
4561 | if (have_2ghz_phy) |
4562 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz; | |
4563 | if (dev->phy.type == B43_PHYTYPE_N) { | |
4564 | if (have_5ghz_phy) | |
4565 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_nphy; | |
4566 | } else { | |
4567 | if (have_5ghz_phy) | |
4568 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy; | |
4569 | } | |
96c755a3 | 4570 | |
bb1eeff1 MB |
4571 | dev->phy.supports_2ghz = have_2ghz_phy; |
4572 | dev->phy.supports_5ghz = have_5ghz_phy; | |
e4d6b795 MB |
4573 | |
4574 | return 0; | |
4575 | } | |
4576 | ||
4577 | static void b43_wireless_core_detach(struct b43_wldev *dev) | |
4578 | { | |
4579 | /* We release firmware that late to not be required to re-request | |
4580 | * is all the time when we reinit the core. */ | |
4581 | b43_release_firmware(dev); | |
fb11137a | 4582 | b43_phy_free(dev); |
e4d6b795 MB |
4583 | } |
4584 | ||
4585 | static int b43_wireless_core_attach(struct b43_wldev *dev) | |
4586 | { | |
4587 | struct b43_wl *wl = dev->wl; | |
4588 | struct ssb_bus *bus = dev->dev->bus; | |
4589 | struct pci_dev *pdev = bus->host_pci; | |
4590 | int err; | |
96c755a3 | 4591 | bool have_2ghz_phy = 0, have_5ghz_phy = 0; |
e4d6b795 MB |
4592 | u32 tmp; |
4593 | ||
4594 | /* Do NOT do any device initialization here. | |
4595 | * Do it in wireless_core_init() instead. | |
4596 | * This function is for gathering basic information about the HW, only. | |
4597 | * Also some structs may be set up here. But most likely you want to have | |
4598 | * that in core_init(), too. | |
4599 | */ | |
4600 | ||
4601 | err = ssb_bus_powerup(bus, 0); | |
4602 | if (err) { | |
4603 | b43err(wl, "Bus powerup failed\n"); | |
4604 | goto out; | |
4605 | } | |
4606 | /* Get the PHY type. */ | |
4607 | if (dev->dev->id.revision >= 5) { | |
4608 | u32 tmshigh; | |
4609 | ||
4610 | tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH); | |
96c755a3 MB |
4611 | have_2ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY); |
4612 | have_5ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_5GHZ_PHY); | |
e4d6b795 | 4613 | } else |
96c755a3 | 4614 | B43_WARN_ON(1); |
e4d6b795 | 4615 | |
96c755a3 | 4616 | dev->phy.gmode = have_2ghz_phy; |
fd4973c5 | 4617 | dev->phy.radio_on = 1; |
e4d6b795 MB |
4618 | tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0; |
4619 | b43_wireless_core_reset(dev, tmp); | |
4620 | ||
4621 | err = b43_phy_versioning(dev); | |
4622 | if (err) | |
21954c36 | 4623 | goto err_powerdown; |
e4d6b795 MB |
4624 | /* Check if this device supports multiband. */ |
4625 | if (!pdev || | |
4626 | (pdev->device != 0x4312 && | |
4627 | pdev->device != 0x4319 && pdev->device != 0x4324)) { | |
4628 | /* No multiband support. */ | |
96c755a3 MB |
4629 | have_2ghz_phy = 0; |
4630 | have_5ghz_phy = 0; | |
e4d6b795 MB |
4631 | switch (dev->phy.type) { |
4632 | case B43_PHYTYPE_A: | |
96c755a3 | 4633 | have_5ghz_phy = 1; |
e4d6b795 | 4634 | break; |
9d86a2d5 | 4635 | case B43_PHYTYPE_LP: //FIXME not always! |
86b2892a | 4636 | #if 0 //FIXME enabling 5GHz causes a NULL pointer dereference |
9d86a2d5 | 4637 | have_5ghz_phy = 1; |
86b2892a | 4638 | #endif |
e4d6b795 | 4639 | case B43_PHYTYPE_G: |
96c755a3 MB |
4640 | case B43_PHYTYPE_N: |
4641 | have_2ghz_phy = 1; | |
e4d6b795 MB |
4642 | break; |
4643 | default: | |
4644 | B43_WARN_ON(1); | |
4645 | } | |
4646 | } | |
96c755a3 MB |
4647 | if (dev->phy.type == B43_PHYTYPE_A) { |
4648 | /* FIXME */ | |
4649 | b43err(wl, "IEEE 802.11a devices are unsupported\n"); | |
4650 | err = -EOPNOTSUPP; | |
4651 | goto err_powerdown; | |
4652 | } | |
2e35af14 MB |
4653 | if (1 /* disable A-PHY */) { |
4654 | /* FIXME: For now we disable the A-PHY on multi-PHY devices. */ | |
9d86a2d5 GS |
4655 | if (dev->phy.type != B43_PHYTYPE_N && |
4656 | dev->phy.type != B43_PHYTYPE_LP) { | |
2e35af14 MB |
4657 | have_2ghz_phy = 1; |
4658 | have_5ghz_phy = 0; | |
4659 | } | |
4660 | } | |
4661 | ||
fb11137a MB |
4662 | err = b43_phy_allocate(dev); |
4663 | if (err) | |
4664 | goto err_powerdown; | |
4665 | ||
96c755a3 | 4666 | dev->phy.gmode = have_2ghz_phy; |
e4d6b795 MB |
4667 | tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0; |
4668 | b43_wireless_core_reset(dev, tmp); | |
4669 | ||
4670 | err = b43_validate_chipaccess(dev); | |
4671 | if (err) | |
fb11137a | 4672 | goto err_phy_free; |
bb1eeff1 | 4673 | err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy); |
e4d6b795 | 4674 | if (err) |
fb11137a | 4675 | goto err_phy_free; |
e4d6b795 MB |
4676 | |
4677 | /* Now set some default "current_dev" */ | |
4678 | if (!wl->current_dev) | |
4679 | wl->current_dev = dev; | |
4680 | INIT_WORK(&dev->restart_work, b43_chip_reset); | |
4681 | ||
cb24f57f | 4682 | dev->phy.ops->switch_analog(dev, 0); |
e4d6b795 MB |
4683 | ssb_device_disable(dev->dev, 0); |
4684 | ssb_bus_may_powerdown(bus); | |
4685 | ||
4686 | out: | |
4687 | return err; | |
4688 | ||
fb11137a MB |
4689 | err_phy_free: |
4690 | b43_phy_free(dev); | |
e4d6b795 MB |
4691 | err_powerdown: |
4692 | ssb_bus_may_powerdown(bus); | |
4693 | return err; | |
4694 | } | |
4695 | ||
4696 | static void b43_one_core_detach(struct ssb_device *dev) | |
4697 | { | |
4698 | struct b43_wldev *wldev; | |
4699 | struct b43_wl *wl; | |
4700 | ||
3bf0a32e MB |
4701 | /* Do not cancel ieee80211-workqueue based work here. |
4702 | * See comment in b43_remove(). */ | |
4703 | ||
e4d6b795 MB |
4704 | wldev = ssb_get_drvdata(dev); |
4705 | wl = wldev->wl; | |
e4d6b795 MB |
4706 | b43_debugfs_remove_device(wldev); |
4707 | b43_wireless_core_detach(wldev); | |
4708 | list_del(&wldev->list); | |
4709 | wl->nr_devs--; | |
4710 | ssb_set_drvdata(dev, NULL); | |
4711 | kfree(wldev); | |
4712 | } | |
4713 | ||
4714 | static int b43_one_core_attach(struct ssb_device *dev, struct b43_wl *wl) | |
4715 | { | |
4716 | struct b43_wldev *wldev; | |
4717 | struct pci_dev *pdev; | |
4718 | int err = -ENOMEM; | |
4719 | ||
4720 | if (!list_empty(&wl->devlist)) { | |
4721 | /* We are not the first core on this chip. */ | |
4722 | pdev = dev->bus->host_pci; | |
4723 | /* Only special chips support more than one wireless | |
4724 | * core, although some of the other chips have more than | |
4725 | * one wireless core as well. Check for this and | |
4726 | * bail out early. | |
4727 | */ | |
4728 | if (!pdev || | |
4729 | ((pdev->device != 0x4321) && | |
4730 | (pdev->device != 0x4313) && (pdev->device != 0x431A))) { | |
4731 | b43dbg(wl, "Ignoring unconnected 802.11 core\n"); | |
4732 | return -ENODEV; | |
4733 | } | |
4734 | } | |
4735 | ||
4736 | wldev = kzalloc(sizeof(*wldev), GFP_KERNEL); | |
4737 | if (!wldev) | |
4738 | goto out; | |
4739 | ||
4740 | wldev->dev = dev; | |
4741 | wldev->wl = wl; | |
4742 | b43_set_status(wldev, B43_STAT_UNINIT); | |
4743 | wldev->bad_frames_preempt = modparam_bad_frames_preempt; | |
e4d6b795 MB |
4744 | INIT_LIST_HEAD(&wldev->list); |
4745 | ||
4746 | err = b43_wireless_core_attach(wldev); | |
4747 | if (err) | |
4748 | goto err_kfree_wldev; | |
4749 | ||
4750 | list_add(&wldev->list, &wl->devlist); | |
4751 | wl->nr_devs++; | |
4752 | ssb_set_drvdata(dev, wldev); | |
4753 | b43_debugfs_add_device(wldev); | |
4754 | ||
4755 | out: | |
4756 | return err; | |
4757 | ||
4758 | err_kfree_wldev: | |
4759 | kfree(wldev); | |
4760 | return err; | |
4761 | } | |
4762 | ||
9fc38458 MB |
4763 | #define IS_PDEV(pdev, _vendor, _device, _subvendor, _subdevice) ( \ |
4764 | (pdev->vendor == PCI_VENDOR_ID_##_vendor) && \ | |
4765 | (pdev->device == _device) && \ | |
4766 | (pdev->subsystem_vendor == PCI_VENDOR_ID_##_subvendor) && \ | |
4767 | (pdev->subsystem_device == _subdevice) ) | |
4768 | ||
e4d6b795 MB |
4769 | static void b43_sprom_fixup(struct ssb_bus *bus) |
4770 | { | |
1855ba78 MB |
4771 | struct pci_dev *pdev; |
4772 | ||
e4d6b795 MB |
4773 | /* boardflags workarounds */ |
4774 | if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL && | |
4775 | bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74) | |
95de2841 | 4776 | bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST; |
e4d6b795 MB |
4777 | if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE && |
4778 | bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40) | |
95de2841 | 4779 | bus->sprom.boardflags_lo |= B43_BFL_PACTRL; |
1855ba78 MB |
4780 | if (bus->bustype == SSB_BUSTYPE_PCI) { |
4781 | pdev = bus->host_pci; | |
9fc38458 | 4782 | if (IS_PDEV(pdev, BROADCOM, 0x4318, ASUSTEK, 0x100F) || |
430cd47f | 4783 | IS_PDEV(pdev, BROADCOM, 0x4320, DELL, 0x0003) || |
570bdfb1 | 4784 | IS_PDEV(pdev, BROADCOM, 0x4320, HP, 0x12f8) || |
9fc38458 | 4785 | IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0015) || |
a58d4522 | 4786 | IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0014) || |
3bb91bff LF |
4787 | IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0013) || |
4788 | IS_PDEV(pdev, BROADCOM, 0x4320, MOTOROLA, 0x7010)) | |
1855ba78 MB |
4789 | bus->sprom.boardflags_lo &= ~B43_BFL_BTCOEXIST; |
4790 | } | |
e4d6b795 MB |
4791 | } |
4792 | ||
4793 | static void b43_wireless_exit(struct ssb_device *dev, struct b43_wl *wl) | |
4794 | { | |
4795 | struct ieee80211_hw *hw = wl->hw; | |
4796 | ||
4797 | ssb_set_devtypedata(dev, NULL); | |
4798 | ieee80211_free_hw(hw); | |
4799 | } | |
4800 | ||
4801 | static int b43_wireless_init(struct ssb_device *dev) | |
4802 | { | |
4803 | struct ssb_sprom *sprom = &dev->bus->sprom; | |
4804 | struct ieee80211_hw *hw; | |
4805 | struct b43_wl *wl; | |
4806 | int err = -ENOMEM; | |
4807 | ||
4808 | b43_sprom_fixup(dev->bus); | |
4809 | ||
4810 | hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops); | |
4811 | if (!hw) { | |
4812 | b43err(NULL, "Could not allocate ieee80211 device\n"); | |
4813 | goto out; | |
4814 | } | |
403a3a13 | 4815 | wl = hw_to_b43_wl(hw); |
e4d6b795 MB |
4816 | |
4817 | /* fill hw info */ | |
605a0bd6 | 4818 | hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
566bfe5a BR |
4819 | IEEE80211_HW_SIGNAL_DBM | |
4820 | IEEE80211_HW_NOISE_DBM; | |
4821 | ||
f59ac048 LR |
4822 | hw->wiphy->interface_modes = |
4823 | BIT(NL80211_IFTYPE_AP) | | |
4824 | BIT(NL80211_IFTYPE_MESH_POINT) | | |
4825 | BIT(NL80211_IFTYPE_STATION) | | |
4826 | BIT(NL80211_IFTYPE_WDS) | | |
4827 | BIT(NL80211_IFTYPE_ADHOC); | |
4828 | ||
403a3a13 MB |
4829 | hw->queues = modparam_qos ? 4 : 1; |
4830 | wl->mac80211_initially_registered_queues = hw->queues; | |
e6a9854b | 4831 | hw->max_rates = 2; |
e4d6b795 | 4832 | SET_IEEE80211_DEV(hw, dev->dev); |
95de2841 LF |
4833 | if (is_valid_ether_addr(sprom->et1mac)) |
4834 | SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac); | |
e4d6b795 | 4835 | else |
95de2841 | 4836 | SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac); |
e4d6b795 | 4837 | |
403a3a13 | 4838 | /* Initialize struct b43_wl */ |
e4d6b795 | 4839 | wl->hw = hw; |
e4d6b795 MB |
4840 | spin_lock_init(&wl->leds_lock); |
4841 | mutex_init(&wl->mutex); | |
36dbd954 | 4842 | spin_lock_init(&wl->hardirq_lock); |
e4d6b795 | 4843 | INIT_LIST_HEAD(&wl->devlist); |
a82d9922 | 4844 | INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work); |
18c8adeb | 4845 | INIT_WORK(&wl->txpower_adjust_work, b43_phy_txpower_adjust_work); |
f5d40eed MB |
4846 | INIT_WORK(&wl->tx_work, b43_tx_work); |
4847 | skb_queue_head_init(&wl->tx_queue); | |
e4d6b795 MB |
4848 | |
4849 | ssb_set_devtypedata(dev, wl); | |
060210f9 MB |
4850 | b43info(wl, "Broadcom %04X WLAN found (core revision %u)\n", |
4851 | dev->bus->chip_id, dev->id.revision); | |
e4d6b795 | 4852 | err = 0; |
060210f9 | 4853 | out: |
e4d6b795 MB |
4854 | return err; |
4855 | } | |
4856 | ||
4857 | static int b43_probe(struct ssb_device *dev, const struct ssb_device_id *id) | |
4858 | { | |
4859 | struct b43_wl *wl; | |
4860 | int err; | |
4861 | int first = 0; | |
4862 | ||
4863 | wl = ssb_get_devtypedata(dev); | |
4864 | if (!wl) { | |
4865 | /* Probing the first core. Must setup common struct b43_wl */ | |
4866 | first = 1; | |
4867 | err = b43_wireless_init(dev); | |
4868 | if (err) | |
4869 | goto out; | |
4870 | wl = ssb_get_devtypedata(dev); | |
4871 | B43_WARN_ON(!wl); | |
4872 | } | |
4873 | err = b43_one_core_attach(dev, wl); | |
4874 | if (err) | |
4875 | goto err_wireless_exit; | |
4876 | ||
4877 | if (first) { | |
4878 | err = ieee80211_register_hw(wl->hw); | |
4879 | if (err) | |
4880 | goto err_one_core_detach; | |
4881 | } | |
4882 | ||
4883 | out: | |
4884 | return err; | |
4885 | ||
4886 | err_one_core_detach: | |
4887 | b43_one_core_detach(dev); | |
4888 | err_wireless_exit: | |
4889 | if (first) | |
4890 | b43_wireless_exit(dev, wl); | |
4891 | return err; | |
4892 | } | |
4893 | ||
4894 | static void b43_remove(struct ssb_device *dev) | |
4895 | { | |
4896 | struct b43_wl *wl = ssb_get_devtypedata(dev); | |
4897 | struct b43_wldev *wldev = ssb_get_drvdata(dev); | |
4898 | ||
3bf0a32e MB |
4899 | /* We must cancel any work here before unregistering from ieee80211, |
4900 | * as the ieee80211 unreg will destroy the workqueue. */ | |
4901 | cancel_work_sync(&wldev->restart_work); | |
4902 | ||
e4d6b795 | 4903 | B43_WARN_ON(!wl); |
403a3a13 MB |
4904 | if (wl->current_dev == wldev) { |
4905 | /* Restore the queues count before unregistering, because firmware detect | |
4906 | * might have modified it. Restoring is important, so the networking | |
4907 | * stack can properly free resources. */ | |
4908 | wl->hw->queues = wl->mac80211_initially_registered_queues; | |
e4d6b795 | 4909 | ieee80211_unregister_hw(wl->hw); |
403a3a13 | 4910 | } |
e4d6b795 MB |
4911 | |
4912 | b43_one_core_detach(dev); | |
4913 | ||
4914 | if (list_empty(&wl->devlist)) { | |
4915 | /* Last core on the chip unregistered. | |
4916 | * We can destroy common struct b43_wl. | |
4917 | */ | |
4918 | b43_wireless_exit(dev, wl); | |
4919 | } | |
4920 | } | |
4921 | ||
4922 | /* Perform a hardware reset. This can be called from any context. */ | |
4923 | void b43_controller_restart(struct b43_wldev *dev, const char *reason) | |
4924 | { | |
4925 | /* Must avoid requeueing, if we are in shutdown. */ | |
4926 | if (b43_status(dev) < B43_STAT_INITIALIZED) | |
4927 | return; | |
4928 | b43info(dev->wl, "Controller RESET (%s) ...\n", reason); | |
42935eca | 4929 | ieee80211_queue_work(dev->wl->hw, &dev->restart_work); |
e4d6b795 MB |
4930 | } |
4931 | ||
4932 | #ifdef CONFIG_PM | |
4933 | ||
4934 | static int b43_suspend(struct ssb_device *dev, pm_message_t state) | |
4935 | { | |
4936 | struct b43_wldev *wldev = ssb_get_drvdata(dev); | |
4937 | struct b43_wl *wl = wldev->wl; | |
4938 | ||
4939 | b43dbg(wl, "Suspending...\n"); | |
4940 | ||
4941 | mutex_lock(&wl->mutex); | |
3506e0c4 | 4942 | wldev->suspend_in_progress = true; |
e4d6b795 MB |
4943 | wldev->suspend_init_status = b43_status(wldev); |
4944 | if (wldev->suspend_init_status >= B43_STAT_STARTED) | |
36dbd954 MB |
4945 | wldev = b43_wireless_core_stop(wldev); |
4946 | if (wldev && wldev->suspend_init_status >= B43_STAT_INITIALIZED) | |
e4d6b795 MB |
4947 | b43_wireless_core_exit(wldev); |
4948 | mutex_unlock(&wl->mutex); | |
4949 | ||
4950 | b43dbg(wl, "Device suspended.\n"); | |
4951 | ||
4952 | return 0; | |
4953 | } | |
4954 | ||
4955 | static int b43_resume(struct ssb_device *dev) | |
4956 | { | |
4957 | struct b43_wldev *wldev = ssb_get_drvdata(dev); | |
4958 | struct b43_wl *wl = wldev->wl; | |
4959 | int err = 0; | |
4960 | ||
4961 | b43dbg(wl, "Resuming...\n"); | |
4962 | ||
4963 | mutex_lock(&wl->mutex); | |
4964 | if (wldev->suspend_init_status >= B43_STAT_INITIALIZED) { | |
4965 | err = b43_wireless_core_init(wldev); | |
4966 | if (err) { | |
4967 | b43err(wl, "Resume failed at core init\n"); | |
4968 | goto out; | |
4969 | } | |
4970 | } | |
4971 | if (wldev->suspend_init_status >= B43_STAT_STARTED) { | |
4972 | err = b43_wireless_core_start(wldev); | |
4973 | if (err) { | |
3506e0c4 | 4974 | b43_leds_exit(wldev); |
b844eba2 | 4975 | b43_rng_exit(wldev->wl); |
e4d6b795 MB |
4976 | b43_wireless_core_exit(wldev); |
4977 | b43err(wl, "Resume failed at core start\n"); | |
4978 | goto out; | |
4979 | } | |
4980 | } | |
e4d6b795 | 4981 | b43dbg(wl, "Device resumed.\n"); |
3506e0c4 RW |
4982 | out: |
4983 | wldev->suspend_in_progress = false; | |
4984 | mutex_unlock(&wl->mutex); | |
e4d6b795 MB |
4985 | return err; |
4986 | } | |
4987 | ||
4988 | #else /* CONFIG_PM */ | |
4989 | # define b43_suspend NULL | |
4990 | # define b43_resume NULL | |
4991 | #endif /* CONFIG_PM */ | |
4992 | ||
4993 | static struct ssb_driver b43_ssb_driver = { | |
4994 | .name = KBUILD_MODNAME, | |
4995 | .id_table = b43_ssb_tbl, | |
4996 | .probe = b43_probe, | |
4997 | .remove = b43_remove, | |
4998 | .suspend = b43_suspend, | |
4999 | .resume = b43_resume, | |
5000 | }; | |
5001 | ||
26bc783f MB |
5002 | static void b43_print_driverinfo(void) |
5003 | { | |
5004 | const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "", | |
f41f3f37 | 5005 | *feat_leds = ""; |
26bc783f MB |
5006 | |
5007 | #ifdef CONFIG_B43_PCI_AUTOSELECT | |
5008 | feat_pci = "P"; | |
5009 | #endif | |
5010 | #ifdef CONFIG_B43_PCMCIA | |
5011 | feat_pcmcia = "M"; | |
5012 | #endif | |
5013 | #ifdef CONFIG_B43_NPHY | |
5014 | feat_nphy = "N"; | |
5015 | #endif | |
5016 | #ifdef CONFIG_B43_LEDS | |
5017 | feat_leds = "L"; | |
26bc783f MB |
5018 | #endif |
5019 | printk(KERN_INFO "Broadcom 43xx driver loaded " | |
f41f3f37 | 5020 | "[ Features: %s%s%s%s, Firmware-ID: " |
26bc783f MB |
5021 | B43_SUPPORTED_FIRMWARE_ID " ]\n", |
5022 | feat_pci, feat_pcmcia, feat_nphy, | |
f41f3f37 | 5023 | feat_leds); |
26bc783f MB |
5024 | } |
5025 | ||
e4d6b795 MB |
5026 | static int __init b43_init(void) |
5027 | { | |
5028 | int err; | |
5029 | ||
5030 | b43_debugfs_init(); | |
5031 | err = b43_pcmcia_init(); | |
5032 | if (err) | |
5033 | goto err_dfs_exit; | |
5034 | err = ssb_driver_register(&b43_ssb_driver); | |
5035 | if (err) | |
5036 | goto err_pcmcia_exit; | |
26bc783f | 5037 | b43_print_driverinfo(); |
e4d6b795 MB |
5038 | |
5039 | return err; | |
5040 | ||
5041 | err_pcmcia_exit: | |
5042 | b43_pcmcia_exit(); | |
5043 | err_dfs_exit: | |
5044 | b43_debugfs_exit(); | |
5045 | return err; | |
5046 | } | |
5047 | ||
5048 | static void __exit b43_exit(void) | |
5049 | { | |
5050 | ssb_driver_unregister(&b43_ssb_driver); | |
5051 | b43_pcmcia_exit(); | |
5052 | b43_debugfs_exit(); | |
5053 | } | |
5054 | ||
5055 | module_init(b43_init) | |
5056 | module_exit(b43_exit) |