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e4d6b795 MB |
1 | /* |
2 | ||
3 | Broadcom B43 wireless driver | |
4 | ||
5 | Copyright (c) 2005 Martin Langer <martin-langer@gmx.de> | |
1f21ad2a | 6 | Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it> |
060210f9 | 7 | Copyright (c) 2005-2009 Michael Buesch <mb@bu3sch.de> |
e4d6b795 MB |
8 | Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org> |
9 | Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch> | |
10 | ||
3dbba8e2 AH |
11 | SDIO support |
12 | Copyright (c) 2009 Albert Herranz <albert_herranz@yahoo.es> | |
13 | ||
e4d6b795 MB |
14 | Some parts of the code in this file are derived from the ipw2200 |
15 | driver Copyright(c) 2003 - 2004 Intel Corporation. | |
16 | ||
17 | This program is free software; you can redistribute it and/or modify | |
18 | it under the terms of the GNU General Public License as published by | |
19 | the Free Software Foundation; either version 2 of the License, or | |
20 | (at your option) any later version. | |
21 | ||
22 | This program is distributed in the hope that it will be useful, | |
23 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | GNU General Public License for more details. | |
26 | ||
27 | You should have received a copy of the GNU General Public License | |
28 | along with this program; see the file COPYING. If not, write to | |
29 | the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, | |
30 | Boston, MA 02110-1301, USA. | |
31 | ||
32 | */ | |
33 | ||
34 | #include <linux/delay.h> | |
35 | #include <linux/init.h> | |
36 | #include <linux/moduleparam.h> | |
37 | #include <linux/if_arp.h> | |
38 | #include <linux/etherdevice.h> | |
e4d6b795 MB |
39 | #include <linux/firmware.h> |
40 | #include <linux/wireless.h> | |
41 | #include <linux/workqueue.h> | |
42 | #include <linux/skbuff.h> | |
96cf49a2 | 43 | #include <linux/io.h> |
e4d6b795 MB |
44 | #include <linux/dma-mapping.h> |
45 | #include <asm/unaligned.h> | |
46 | ||
47 | #include "b43.h" | |
48 | #include "main.h" | |
49 | #include "debugfs.h" | |
ef1a628d MB |
50 | #include "phy_common.h" |
51 | #include "phy_g.h" | |
3d0da751 | 52 | #include "phy_n.h" |
e4d6b795 | 53 | #include "dma.h" |
5100d5ac | 54 | #include "pio.h" |
e4d6b795 MB |
55 | #include "sysfs.h" |
56 | #include "xmit.h" | |
e4d6b795 MB |
57 | #include "lo.h" |
58 | #include "pcmcia.h" | |
3dbba8e2 AH |
59 | #include "sdio.h" |
60 | #include <linux/mmc/sdio_func.h> | |
e4d6b795 MB |
61 | |
62 | MODULE_DESCRIPTION("Broadcom B43 wireless driver"); | |
63 | MODULE_AUTHOR("Martin Langer"); | |
64 | MODULE_AUTHOR("Stefano Brivio"); | |
65 | MODULE_AUTHOR("Michael Buesch"); | |
0136e51e | 66 | MODULE_AUTHOR("Gábor Stefanik"); |
e4d6b795 MB |
67 | MODULE_LICENSE("GPL"); |
68 | ||
9c7d99d6 | 69 | MODULE_FIRMWARE(B43_SUPPORTED_FIRMWARE_ID); |
6021e08d TG |
70 | MODULE_FIRMWARE("b43/ucode11.fw"); |
71 | MODULE_FIRMWARE("b43/ucode13.fw"); | |
72 | MODULE_FIRMWARE("b43/ucode14.fw"); | |
73 | MODULE_FIRMWARE("b43/ucode15.fw"); | |
74 | MODULE_FIRMWARE("b43/ucode5.fw"); | |
75 | MODULE_FIRMWARE("b43/ucode9.fw"); | |
e4d6b795 MB |
76 | |
77 | static int modparam_bad_frames_preempt; | |
78 | module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444); | |
79 | MODULE_PARM_DESC(bad_frames_preempt, | |
80 | "enable(1) / disable(0) Bad Frames Preemption"); | |
81 | ||
e4d6b795 MB |
82 | static char modparam_fwpostfix[16]; |
83 | module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444); | |
84 | MODULE_PARM_DESC(fwpostfix, "Postfix for the .fw files to load."); | |
85 | ||
e4d6b795 MB |
86 | static int modparam_hwpctl; |
87 | module_param_named(hwpctl, modparam_hwpctl, int, 0444); | |
88 | MODULE_PARM_DESC(hwpctl, "Enable hardware-side power control (default off)"); | |
89 | ||
90 | static int modparam_nohwcrypt; | |
91 | module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); | |
92 | MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption."); | |
93 | ||
035d0243 | 94 | static int modparam_hwtkip; |
95 | module_param_named(hwtkip, modparam_hwtkip, int, 0444); | |
96 | MODULE_PARM_DESC(hwtkip, "Enable hardware tkip."); | |
97 | ||
403a3a13 MB |
98 | static int modparam_qos = 1; |
99 | module_param_named(qos, modparam_qos, int, 0444); | |
e6f5b934 MB |
100 | MODULE_PARM_DESC(qos, "Enable QOS support (default on)"); |
101 | ||
1855ba78 MB |
102 | static int modparam_btcoex = 1; |
103 | module_param_named(btcoex, modparam_btcoex, int, 0444); | |
c71dbd33 | 104 | MODULE_PARM_DESC(btcoex, "Enable Bluetooth coexistence (default on)"); |
1855ba78 | 105 | |
060210f9 MB |
106 | int b43_modparam_verbose = B43_VERBOSITY_DEFAULT; |
107 | module_param_named(verbose, b43_modparam_verbose, int, 0644); | |
108 | MODULE_PARM_DESC(verbose, "Log message verbosity: 0=error, 1=warn, 2=info(default), 3=debug"); | |
109 | ||
b02914af LF |
110 | static int modparam_pio; |
111 | module_param_named(pio, modparam_pio, int, 0444); | |
112 | MODULE_PARM_DESC(pio, "enable(1) / disable(0) PIO mode"); | |
e6f5b934 | 113 | |
e4d6b795 MB |
114 | static const struct ssb_device_id b43_ssb_tbl[] = { |
115 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5), | |
116 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6), | |
117 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7), | |
118 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9), | |
119 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10), | |
d5c71e46 | 120 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11), |
003d6d27 | 121 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 12), |
013978b6 | 122 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13), |
6b1c7c67 | 123 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 15), |
92d6128e | 124 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 16), |
e4d6b795 MB |
125 | SSB_DEVTABLE_END |
126 | }; | |
127 | ||
128 | MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl); | |
129 | ||
130 | /* Channel and ratetables are shared for all devices. | |
131 | * They can't be const, because ieee80211 puts some precalculated | |
132 | * data in there. This data is the same for all devices, so we don't | |
133 | * get concurrency issues */ | |
134 | #define RATETAB_ENT(_rateid, _flags) \ | |
8318d78a JB |
135 | { \ |
136 | .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \ | |
137 | .hw_value = (_rateid), \ | |
138 | .flags = (_flags), \ | |
e4d6b795 | 139 | } |
8318d78a JB |
140 | |
141 | /* | |
142 | * NOTE: When changing this, sync with xmit.c's | |
143 | * b43_plcp_get_bitrate_idx_* functions! | |
144 | */ | |
e4d6b795 | 145 | static struct ieee80211_rate __b43_ratetable[] = { |
8318d78a JB |
146 | RATETAB_ENT(B43_CCK_RATE_1MB, 0), |
147 | RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE), | |
148 | RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE), | |
149 | RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE), | |
150 | RATETAB_ENT(B43_OFDM_RATE_6MB, 0), | |
151 | RATETAB_ENT(B43_OFDM_RATE_9MB, 0), | |
152 | RATETAB_ENT(B43_OFDM_RATE_12MB, 0), | |
153 | RATETAB_ENT(B43_OFDM_RATE_18MB, 0), | |
154 | RATETAB_ENT(B43_OFDM_RATE_24MB, 0), | |
155 | RATETAB_ENT(B43_OFDM_RATE_36MB, 0), | |
156 | RATETAB_ENT(B43_OFDM_RATE_48MB, 0), | |
157 | RATETAB_ENT(B43_OFDM_RATE_54MB, 0), | |
e4d6b795 MB |
158 | }; |
159 | ||
160 | #define b43_a_ratetable (__b43_ratetable + 4) | |
161 | #define b43_a_ratetable_size 8 | |
162 | #define b43_b_ratetable (__b43_ratetable + 0) | |
163 | #define b43_b_ratetable_size 4 | |
164 | #define b43_g_ratetable (__b43_ratetable + 0) | |
165 | #define b43_g_ratetable_size 12 | |
166 | ||
bb1eeff1 MB |
167 | #define CHAN4G(_channel, _freq, _flags) { \ |
168 | .band = IEEE80211_BAND_2GHZ, \ | |
169 | .center_freq = (_freq), \ | |
170 | .hw_value = (_channel), \ | |
171 | .flags = (_flags), \ | |
172 | .max_antenna_gain = 0, \ | |
173 | .max_power = 30, \ | |
174 | } | |
96c755a3 | 175 | static struct ieee80211_channel b43_2ghz_chantable[] = { |
bb1eeff1 MB |
176 | CHAN4G(1, 2412, 0), |
177 | CHAN4G(2, 2417, 0), | |
178 | CHAN4G(3, 2422, 0), | |
179 | CHAN4G(4, 2427, 0), | |
180 | CHAN4G(5, 2432, 0), | |
181 | CHAN4G(6, 2437, 0), | |
182 | CHAN4G(7, 2442, 0), | |
183 | CHAN4G(8, 2447, 0), | |
184 | CHAN4G(9, 2452, 0), | |
185 | CHAN4G(10, 2457, 0), | |
186 | CHAN4G(11, 2462, 0), | |
187 | CHAN4G(12, 2467, 0), | |
188 | CHAN4G(13, 2472, 0), | |
189 | CHAN4G(14, 2484, 0), | |
190 | }; | |
191 | #undef CHAN4G | |
192 | ||
193 | #define CHAN5G(_channel, _flags) { \ | |
194 | .band = IEEE80211_BAND_5GHZ, \ | |
195 | .center_freq = 5000 + (5 * (_channel)), \ | |
196 | .hw_value = (_channel), \ | |
197 | .flags = (_flags), \ | |
198 | .max_antenna_gain = 0, \ | |
199 | .max_power = 30, \ | |
200 | } | |
201 | static struct ieee80211_channel b43_5ghz_nphy_chantable[] = { | |
202 | CHAN5G(32, 0), CHAN5G(34, 0), | |
203 | CHAN5G(36, 0), CHAN5G(38, 0), | |
204 | CHAN5G(40, 0), CHAN5G(42, 0), | |
205 | CHAN5G(44, 0), CHAN5G(46, 0), | |
206 | CHAN5G(48, 0), CHAN5G(50, 0), | |
207 | CHAN5G(52, 0), CHAN5G(54, 0), | |
208 | CHAN5G(56, 0), CHAN5G(58, 0), | |
209 | CHAN5G(60, 0), CHAN5G(62, 0), | |
210 | CHAN5G(64, 0), CHAN5G(66, 0), | |
211 | CHAN5G(68, 0), CHAN5G(70, 0), | |
212 | CHAN5G(72, 0), CHAN5G(74, 0), | |
213 | CHAN5G(76, 0), CHAN5G(78, 0), | |
214 | CHAN5G(80, 0), CHAN5G(82, 0), | |
215 | CHAN5G(84, 0), CHAN5G(86, 0), | |
216 | CHAN5G(88, 0), CHAN5G(90, 0), | |
217 | CHAN5G(92, 0), CHAN5G(94, 0), | |
218 | CHAN5G(96, 0), CHAN5G(98, 0), | |
219 | CHAN5G(100, 0), CHAN5G(102, 0), | |
220 | CHAN5G(104, 0), CHAN5G(106, 0), | |
221 | CHAN5G(108, 0), CHAN5G(110, 0), | |
222 | CHAN5G(112, 0), CHAN5G(114, 0), | |
223 | CHAN5G(116, 0), CHAN5G(118, 0), | |
224 | CHAN5G(120, 0), CHAN5G(122, 0), | |
225 | CHAN5G(124, 0), CHAN5G(126, 0), | |
226 | CHAN5G(128, 0), CHAN5G(130, 0), | |
227 | CHAN5G(132, 0), CHAN5G(134, 0), | |
228 | CHAN5G(136, 0), CHAN5G(138, 0), | |
229 | CHAN5G(140, 0), CHAN5G(142, 0), | |
230 | CHAN5G(144, 0), CHAN5G(145, 0), | |
231 | CHAN5G(146, 0), CHAN5G(147, 0), | |
232 | CHAN5G(148, 0), CHAN5G(149, 0), | |
233 | CHAN5G(150, 0), CHAN5G(151, 0), | |
234 | CHAN5G(152, 0), CHAN5G(153, 0), | |
235 | CHAN5G(154, 0), CHAN5G(155, 0), | |
236 | CHAN5G(156, 0), CHAN5G(157, 0), | |
237 | CHAN5G(158, 0), CHAN5G(159, 0), | |
238 | CHAN5G(160, 0), CHAN5G(161, 0), | |
239 | CHAN5G(162, 0), CHAN5G(163, 0), | |
240 | CHAN5G(164, 0), CHAN5G(165, 0), | |
241 | CHAN5G(166, 0), CHAN5G(168, 0), | |
242 | CHAN5G(170, 0), CHAN5G(172, 0), | |
243 | CHAN5G(174, 0), CHAN5G(176, 0), | |
244 | CHAN5G(178, 0), CHAN5G(180, 0), | |
245 | CHAN5G(182, 0), CHAN5G(184, 0), | |
246 | CHAN5G(186, 0), CHAN5G(188, 0), | |
247 | CHAN5G(190, 0), CHAN5G(192, 0), | |
248 | CHAN5G(194, 0), CHAN5G(196, 0), | |
249 | CHAN5G(198, 0), CHAN5G(200, 0), | |
250 | CHAN5G(202, 0), CHAN5G(204, 0), | |
251 | CHAN5G(206, 0), CHAN5G(208, 0), | |
252 | CHAN5G(210, 0), CHAN5G(212, 0), | |
253 | CHAN5G(214, 0), CHAN5G(216, 0), | |
254 | CHAN5G(218, 0), CHAN5G(220, 0), | |
255 | CHAN5G(222, 0), CHAN5G(224, 0), | |
256 | CHAN5G(226, 0), CHAN5G(228, 0), | |
e4d6b795 MB |
257 | }; |
258 | ||
bb1eeff1 MB |
259 | static struct ieee80211_channel b43_5ghz_aphy_chantable[] = { |
260 | CHAN5G(34, 0), CHAN5G(36, 0), | |
261 | CHAN5G(38, 0), CHAN5G(40, 0), | |
262 | CHAN5G(42, 0), CHAN5G(44, 0), | |
263 | CHAN5G(46, 0), CHAN5G(48, 0), | |
264 | CHAN5G(52, 0), CHAN5G(56, 0), | |
265 | CHAN5G(60, 0), CHAN5G(64, 0), | |
266 | CHAN5G(100, 0), CHAN5G(104, 0), | |
267 | CHAN5G(108, 0), CHAN5G(112, 0), | |
268 | CHAN5G(116, 0), CHAN5G(120, 0), | |
269 | CHAN5G(124, 0), CHAN5G(128, 0), | |
270 | CHAN5G(132, 0), CHAN5G(136, 0), | |
271 | CHAN5G(140, 0), CHAN5G(149, 0), | |
272 | CHAN5G(153, 0), CHAN5G(157, 0), | |
273 | CHAN5G(161, 0), CHAN5G(165, 0), | |
274 | CHAN5G(184, 0), CHAN5G(188, 0), | |
275 | CHAN5G(192, 0), CHAN5G(196, 0), | |
276 | CHAN5G(200, 0), CHAN5G(204, 0), | |
277 | CHAN5G(208, 0), CHAN5G(212, 0), | |
278 | CHAN5G(216, 0), | |
279 | }; | |
280 | #undef CHAN5G | |
281 | ||
282 | static struct ieee80211_supported_band b43_band_5GHz_nphy = { | |
283 | .band = IEEE80211_BAND_5GHZ, | |
284 | .channels = b43_5ghz_nphy_chantable, | |
285 | .n_channels = ARRAY_SIZE(b43_5ghz_nphy_chantable), | |
286 | .bitrates = b43_a_ratetable, | |
287 | .n_bitrates = b43_a_ratetable_size, | |
e4d6b795 | 288 | }; |
8318d78a | 289 | |
bb1eeff1 MB |
290 | static struct ieee80211_supported_band b43_band_5GHz_aphy = { |
291 | .band = IEEE80211_BAND_5GHZ, | |
292 | .channels = b43_5ghz_aphy_chantable, | |
293 | .n_channels = ARRAY_SIZE(b43_5ghz_aphy_chantable), | |
294 | .bitrates = b43_a_ratetable, | |
295 | .n_bitrates = b43_a_ratetable_size, | |
8318d78a | 296 | }; |
e4d6b795 | 297 | |
8318d78a | 298 | static struct ieee80211_supported_band b43_band_2GHz = { |
bb1eeff1 MB |
299 | .band = IEEE80211_BAND_2GHZ, |
300 | .channels = b43_2ghz_chantable, | |
301 | .n_channels = ARRAY_SIZE(b43_2ghz_chantable), | |
302 | .bitrates = b43_g_ratetable, | |
303 | .n_bitrates = b43_g_ratetable_size, | |
8318d78a JB |
304 | }; |
305 | ||
e4d6b795 MB |
306 | static void b43_wireless_core_exit(struct b43_wldev *dev); |
307 | static int b43_wireless_core_init(struct b43_wldev *dev); | |
36dbd954 | 308 | static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev); |
e4d6b795 MB |
309 | static int b43_wireless_core_start(struct b43_wldev *dev); |
310 | ||
311 | static int b43_ratelimit(struct b43_wl *wl) | |
312 | { | |
313 | if (!wl || !wl->current_dev) | |
314 | return 1; | |
315 | if (b43_status(wl->current_dev) < B43_STAT_STARTED) | |
316 | return 1; | |
317 | /* We are up and running. | |
318 | * Ratelimit the messages to avoid DoS over the net. */ | |
319 | return net_ratelimit(); | |
320 | } | |
321 | ||
322 | void b43info(struct b43_wl *wl, const char *fmt, ...) | |
323 | { | |
324 | va_list args; | |
325 | ||
060210f9 MB |
326 | if (b43_modparam_verbose < B43_VERBOSITY_INFO) |
327 | return; | |
e4d6b795 MB |
328 | if (!b43_ratelimit(wl)) |
329 | return; | |
330 | va_start(args, fmt); | |
331 | printk(KERN_INFO "b43-%s: ", | |
332 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); | |
333 | vprintk(fmt, args); | |
334 | va_end(args); | |
335 | } | |
336 | ||
337 | void b43err(struct b43_wl *wl, const char *fmt, ...) | |
338 | { | |
339 | va_list args; | |
340 | ||
060210f9 MB |
341 | if (b43_modparam_verbose < B43_VERBOSITY_ERROR) |
342 | return; | |
e4d6b795 MB |
343 | if (!b43_ratelimit(wl)) |
344 | return; | |
345 | va_start(args, fmt); | |
346 | printk(KERN_ERR "b43-%s ERROR: ", | |
347 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); | |
348 | vprintk(fmt, args); | |
349 | va_end(args); | |
350 | } | |
351 | ||
352 | void b43warn(struct b43_wl *wl, const char *fmt, ...) | |
353 | { | |
354 | va_list args; | |
355 | ||
060210f9 MB |
356 | if (b43_modparam_verbose < B43_VERBOSITY_WARN) |
357 | return; | |
e4d6b795 MB |
358 | if (!b43_ratelimit(wl)) |
359 | return; | |
360 | va_start(args, fmt); | |
361 | printk(KERN_WARNING "b43-%s warning: ", | |
362 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); | |
363 | vprintk(fmt, args); | |
364 | va_end(args); | |
365 | } | |
366 | ||
e4d6b795 MB |
367 | void b43dbg(struct b43_wl *wl, const char *fmt, ...) |
368 | { | |
369 | va_list args; | |
370 | ||
060210f9 MB |
371 | if (b43_modparam_verbose < B43_VERBOSITY_DEBUG) |
372 | return; | |
e4d6b795 MB |
373 | va_start(args, fmt); |
374 | printk(KERN_DEBUG "b43-%s debug: ", | |
375 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); | |
376 | vprintk(fmt, args); | |
377 | va_end(args); | |
378 | } | |
e4d6b795 MB |
379 | |
380 | static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val) | |
381 | { | |
382 | u32 macctl; | |
383 | ||
384 | B43_WARN_ON(offset % 4 != 0); | |
385 | ||
386 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
387 | if (macctl & B43_MACCTL_BE) | |
388 | val = swab32(val); | |
389 | ||
390 | b43_write32(dev, B43_MMIO_RAM_CONTROL, offset); | |
391 | mmiowb(); | |
392 | b43_write32(dev, B43_MMIO_RAM_DATA, val); | |
393 | } | |
394 | ||
280d0e16 MB |
395 | static inline void b43_shm_control_word(struct b43_wldev *dev, |
396 | u16 routing, u16 offset) | |
e4d6b795 MB |
397 | { |
398 | u32 control; | |
399 | ||
400 | /* "offset" is the WORD offset. */ | |
e4d6b795 MB |
401 | control = routing; |
402 | control <<= 16; | |
403 | control |= offset; | |
404 | b43_write32(dev, B43_MMIO_SHM_CONTROL, control); | |
405 | } | |
406 | ||
69eddc8a | 407 | u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset) |
e4d6b795 MB |
408 | { |
409 | u32 ret; | |
410 | ||
411 | if (routing == B43_SHM_SHARED) { | |
412 | B43_WARN_ON(offset & 0x0001); | |
413 | if (offset & 0x0003) { | |
414 | /* Unaligned access */ | |
415 | b43_shm_control_word(dev, routing, offset >> 2); | |
416 | ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED); | |
e4d6b795 | 417 | b43_shm_control_word(dev, routing, (offset >> 2) + 1); |
f62ae6cd | 418 | ret |= ((u32)b43_read16(dev, B43_MMIO_SHM_DATA)) << 16; |
e4d6b795 | 419 | |
280d0e16 | 420 | goto out; |
e4d6b795 MB |
421 | } |
422 | offset >>= 2; | |
423 | } | |
424 | b43_shm_control_word(dev, routing, offset); | |
425 | ret = b43_read32(dev, B43_MMIO_SHM_DATA); | |
280d0e16 | 426 | out: |
e4d6b795 MB |
427 | return ret; |
428 | } | |
429 | ||
69eddc8a | 430 | u16 b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset) |
6bbc321a MB |
431 | { |
432 | u16 ret; | |
433 | ||
e4d6b795 MB |
434 | if (routing == B43_SHM_SHARED) { |
435 | B43_WARN_ON(offset & 0x0001); | |
436 | if (offset & 0x0003) { | |
437 | /* Unaligned access */ | |
438 | b43_shm_control_word(dev, routing, offset >> 2); | |
439 | ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED); | |
440 | ||
280d0e16 | 441 | goto out; |
e4d6b795 MB |
442 | } |
443 | offset >>= 2; | |
444 | } | |
445 | b43_shm_control_word(dev, routing, offset); | |
446 | ret = b43_read16(dev, B43_MMIO_SHM_DATA); | |
280d0e16 | 447 | out: |
e4d6b795 MB |
448 | return ret; |
449 | } | |
450 | ||
69eddc8a | 451 | void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value) |
6bbc321a | 452 | { |
e4d6b795 MB |
453 | if (routing == B43_SHM_SHARED) { |
454 | B43_WARN_ON(offset & 0x0001); | |
455 | if (offset & 0x0003) { | |
456 | /* Unaligned access */ | |
457 | b43_shm_control_word(dev, routing, offset >> 2); | |
e4d6b795 | 458 | b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, |
f62ae6cd | 459 | value & 0xFFFF); |
e4d6b795 | 460 | b43_shm_control_word(dev, routing, (offset >> 2) + 1); |
f62ae6cd MB |
461 | b43_write16(dev, B43_MMIO_SHM_DATA, |
462 | (value >> 16) & 0xFFFF); | |
6bbc321a | 463 | return; |
e4d6b795 MB |
464 | } |
465 | offset >>= 2; | |
466 | } | |
467 | b43_shm_control_word(dev, routing, offset); | |
e4d6b795 MB |
468 | b43_write32(dev, B43_MMIO_SHM_DATA, value); |
469 | } | |
470 | ||
69eddc8a | 471 | void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value) |
6bbc321a | 472 | { |
e4d6b795 MB |
473 | if (routing == B43_SHM_SHARED) { |
474 | B43_WARN_ON(offset & 0x0001); | |
475 | if (offset & 0x0003) { | |
476 | /* Unaligned access */ | |
477 | b43_shm_control_word(dev, routing, offset >> 2); | |
e4d6b795 | 478 | b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value); |
6bbc321a | 479 | return; |
e4d6b795 MB |
480 | } |
481 | offset >>= 2; | |
482 | } | |
483 | b43_shm_control_word(dev, routing, offset); | |
e4d6b795 | 484 | b43_write16(dev, B43_MMIO_SHM_DATA, value); |
6bbc321a MB |
485 | } |
486 | ||
e4d6b795 | 487 | /* Read HostFlags */ |
99da185a | 488 | u64 b43_hf_read(struct b43_wldev *dev) |
e4d6b795 | 489 | { |
35f0d354 | 490 | u64 ret; |
e4d6b795 MB |
491 | |
492 | ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI); | |
493 | ret <<= 16; | |
35f0d354 MB |
494 | ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI); |
495 | ret <<= 16; | |
e4d6b795 MB |
496 | ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO); |
497 | ||
498 | return ret; | |
499 | } | |
500 | ||
501 | /* Write HostFlags */ | |
35f0d354 | 502 | void b43_hf_write(struct b43_wldev *dev, u64 value) |
e4d6b795 | 503 | { |
35f0d354 MB |
504 | u16 lo, mi, hi; |
505 | ||
506 | lo = (value & 0x00000000FFFFULL); | |
507 | mi = (value & 0x0000FFFF0000ULL) >> 16; | |
508 | hi = (value & 0xFFFF00000000ULL) >> 32; | |
509 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO, lo); | |
510 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI, mi); | |
511 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi); | |
e4d6b795 MB |
512 | } |
513 | ||
403a3a13 MB |
514 | /* Read the firmware capabilities bitmask (Opensource firmware only) */ |
515 | static u16 b43_fwcapa_read(struct b43_wldev *dev) | |
516 | { | |
517 | B43_WARN_ON(!dev->fw.opensource); | |
518 | return b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_FWCAPA); | |
519 | } | |
520 | ||
3ebbbb56 | 521 | void b43_tsf_read(struct b43_wldev *dev, u64 *tsf) |
e4d6b795 | 522 | { |
3ebbbb56 MB |
523 | u32 low, high; |
524 | ||
525 | B43_WARN_ON(dev->dev->id.revision < 3); | |
526 | ||
527 | /* The hardware guarantees us an atomic read, if we | |
528 | * read the low register first. */ | |
529 | low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW); | |
530 | high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH); | |
531 | ||
532 | *tsf = high; | |
533 | *tsf <<= 32; | |
534 | *tsf |= low; | |
e4d6b795 MB |
535 | } |
536 | ||
537 | static void b43_time_lock(struct b43_wldev *dev) | |
538 | { | |
539 | u32 macctl; | |
540 | ||
541 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
542 | macctl |= B43_MACCTL_TBTTHOLD; | |
543 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
544 | /* Commit the write */ | |
545 | b43_read32(dev, B43_MMIO_MACCTL); | |
546 | } | |
547 | ||
548 | static void b43_time_unlock(struct b43_wldev *dev) | |
549 | { | |
550 | u32 macctl; | |
551 | ||
552 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
553 | macctl &= ~B43_MACCTL_TBTTHOLD; | |
554 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
555 | /* Commit the write */ | |
556 | b43_read32(dev, B43_MMIO_MACCTL); | |
557 | } | |
558 | ||
559 | static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf) | |
560 | { | |
3ebbbb56 MB |
561 | u32 low, high; |
562 | ||
563 | B43_WARN_ON(dev->dev->id.revision < 3); | |
564 | ||
565 | low = tsf; | |
566 | high = (tsf >> 32); | |
567 | /* The hardware guarantees us an atomic write, if we | |
568 | * write the low register first. */ | |
569 | b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, low); | |
570 | mmiowb(); | |
571 | b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, high); | |
572 | mmiowb(); | |
e4d6b795 MB |
573 | } |
574 | ||
575 | void b43_tsf_write(struct b43_wldev *dev, u64 tsf) | |
576 | { | |
577 | b43_time_lock(dev); | |
578 | b43_tsf_write_locked(dev, tsf); | |
579 | b43_time_unlock(dev); | |
580 | } | |
581 | ||
582 | static | |
99da185a | 583 | void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 *mac) |
e4d6b795 MB |
584 | { |
585 | static const u8 zero_addr[ETH_ALEN] = { 0 }; | |
586 | u16 data; | |
587 | ||
588 | if (!mac) | |
589 | mac = zero_addr; | |
590 | ||
591 | offset |= 0x0020; | |
592 | b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset); | |
593 | ||
594 | data = mac[0]; | |
595 | data |= mac[1] << 8; | |
596 | b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); | |
597 | data = mac[2]; | |
598 | data |= mac[3] << 8; | |
599 | b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); | |
600 | data = mac[4]; | |
601 | data |= mac[5] << 8; | |
602 | b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); | |
603 | } | |
604 | ||
605 | static void b43_write_mac_bssid_templates(struct b43_wldev *dev) | |
606 | { | |
607 | const u8 *mac; | |
608 | const u8 *bssid; | |
609 | u8 mac_bssid[ETH_ALEN * 2]; | |
610 | int i; | |
611 | u32 tmp; | |
612 | ||
613 | bssid = dev->wl->bssid; | |
614 | mac = dev->wl->mac_addr; | |
615 | ||
616 | b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid); | |
617 | ||
618 | memcpy(mac_bssid, mac, ETH_ALEN); | |
619 | memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN); | |
620 | ||
621 | /* Write our MAC address and BSSID to template ram */ | |
622 | for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) { | |
623 | tmp = (u32) (mac_bssid[i + 0]); | |
624 | tmp |= (u32) (mac_bssid[i + 1]) << 8; | |
625 | tmp |= (u32) (mac_bssid[i + 2]) << 16; | |
626 | tmp |= (u32) (mac_bssid[i + 3]) << 24; | |
627 | b43_ram_write(dev, 0x20 + i, tmp); | |
628 | } | |
629 | } | |
630 | ||
4150c572 | 631 | static void b43_upload_card_macaddress(struct b43_wldev *dev) |
e4d6b795 | 632 | { |
e4d6b795 | 633 | b43_write_mac_bssid_templates(dev); |
4150c572 | 634 | b43_macfilter_set(dev, B43_MACFILTER_SELF, dev->wl->mac_addr); |
e4d6b795 MB |
635 | } |
636 | ||
637 | static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time) | |
638 | { | |
639 | /* slot_time is in usec. */ | |
640 | if (dev->phy.type != B43_PHYTYPE_G) | |
641 | return; | |
642 | b43_write16(dev, 0x684, 510 + slot_time); | |
643 | b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time); | |
644 | } | |
645 | ||
646 | static void b43_short_slot_timing_enable(struct b43_wldev *dev) | |
647 | { | |
648 | b43_set_slot_time(dev, 9); | |
e4d6b795 MB |
649 | } |
650 | ||
651 | static void b43_short_slot_timing_disable(struct b43_wldev *dev) | |
652 | { | |
653 | b43_set_slot_time(dev, 20); | |
e4d6b795 MB |
654 | } |
655 | ||
e4d6b795 | 656 | /* DummyTransmission function, as documented on |
2f19c287 | 657 | * http://bcm-v4.sipsolutions.net/802.11/DummyTransmission |
e4d6b795 | 658 | */ |
2f19c287 | 659 | void b43_dummy_transmission(struct b43_wldev *dev, bool ofdm, bool pa_on) |
e4d6b795 MB |
660 | { |
661 | struct b43_phy *phy = &dev->phy; | |
662 | unsigned int i, max_loop; | |
663 | u16 value; | |
664 | u32 buffer[5] = { | |
665 | 0x00000000, | |
666 | 0x00D40000, | |
667 | 0x00000000, | |
668 | 0x01000000, | |
669 | 0x00000000, | |
670 | }; | |
671 | ||
2f19c287 | 672 | if (ofdm) { |
e4d6b795 MB |
673 | max_loop = 0x1E; |
674 | buffer[0] = 0x000201CC; | |
2f19c287 | 675 | } else { |
e4d6b795 MB |
676 | max_loop = 0xFA; |
677 | buffer[0] = 0x000B846E; | |
e4d6b795 MB |
678 | } |
679 | ||
680 | for (i = 0; i < 5; i++) | |
681 | b43_ram_write(dev, i * 4, buffer[i]); | |
682 | ||
e4d6b795 | 683 | b43_write16(dev, 0x0568, 0x0000); |
2f19c287 GS |
684 | if (dev->dev->id.revision < 11) |
685 | b43_write16(dev, 0x07C0, 0x0000); | |
686 | else | |
687 | b43_write16(dev, 0x07C0, 0x0100); | |
688 | value = (ofdm ? 0x41 : 0x40); | |
e4d6b795 | 689 | b43_write16(dev, 0x050C, value); |
2f19c287 GS |
690 | if ((phy->type == B43_PHYTYPE_N) || (phy->type == B43_PHYTYPE_LP)) |
691 | b43_write16(dev, 0x0514, 0x1A02); | |
e4d6b795 MB |
692 | b43_write16(dev, 0x0508, 0x0000); |
693 | b43_write16(dev, 0x050A, 0x0000); | |
694 | b43_write16(dev, 0x054C, 0x0000); | |
695 | b43_write16(dev, 0x056A, 0x0014); | |
696 | b43_write16(dev, 0x0568, 0x0826); | |
697 | b43_write16(dev, 0x0500, 0x0000); | |
2f19c287 GS |
698 | if (!pa_on && (phy->type == B43_PHYTYPE_N)) { |
699 | //SPEC TODO | |
700 | } | |
701 | ||
702 | switch (phy->type) { | |
703 | case B43_PHYTYPE_N: | |
704 | b43_write16(dev, 0x0502, 0x00D0); | |
705 | break; | |
706 | case B43_PHYTYPE_LP: | |
707 | b43_write16(dev, 0x0502, 0x0050); | |
708 | break; | |
709 | default: | |
710 | b43_write16(dev, 0x0502, 0x0030); | |
711 | } | |
e4d6b795 MB |
712 | |
713 | if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) | |
714 | b43_radio_write16(dev, 0x0051, 0x0017); | |
715 | for (i = 0x00; i < max_loop; i++) { | |
716 | value = b43_read16(dev, 0x050E); | |
717 | if (value & 0x0080) | |
718 | break; | |
719 | udelay(10); | |
720 | } | |
721 | for (i = 0x00; i < 0x0A; i++) { | |
722 | value = b43_read16(dev, 0x050E); | |
723 | if (value & 0x0400) | |
724 | break; | |
725 | udelay(10); | |
726 | } | |
1d280ddc | 727 | for (i = 0x00; i < 0x19; i++) { |
e4d6b795 MB |
728 | value = b43_read16(dev, 0x0690); |
729 | if (!(value & 0x0100)) | |
730 | break; | |
731 | udelay(10); | |
732 | } | |
733 | if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) | |
734 | b43_radio_write16(dev, 0x0051, 0x0037); | |
735 | } | |
736 | ||
737 | static void key_write(struct b43_wldev *dev, | |
99da185a | 738 | u8 index, u8 algorithm, const u8 *key) |
e4d6b795 MB |
739 | { |
740 | unsigned int i; | |
741 | u32 offset; | |
742 | u16 value; | |
743 | u16 kidx; | |
744 | ||
745 | /* Key index/algo block */ | |
746 | kidx = b43_kidx_to_fw(dev, index); | |
747 | value = ((kidx << 4) | algorithm); | |
748 | b43_shm_write16(dev, B43_SHM_SHARED, | |
749 | B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value); | |
750 | ||
751 | /* Write the key to the Key Table Pointer offset */ | |
752 | offset = dev->ktp + (index * B43_SEC_KEYSIZE); | |
753 | for (i = 0; i < B43_SEC_KEYSIZE; i += 2) { | |
754 | value = key[i]; | |
755 | value |= (u16) (key[i + 1]) << 8; | |
756 | b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value); | |
757 | } | |
758 | } | |
759 | ||
99da185a | 760 | static void keymac_write(struct b43_wldev *dev, u8 index, const u8 *addr) |
e4d6b795 MB |
761 | { |
762 | u32 addrtmp[2] = { 0, 0, }; | |
66d2d089 | 763 | u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2; |
e4d6b795 MB |
764 | |
765 | if (b43_new_kidx_api(dev)) | |
66d2d089 | 766 | pairwise_keys_start = B43_NR_GROUP_KEYS; |
e4d6b795 | 767 | |
66d2d089 MB |
768 | B43_WARN_ON(index < pairwise_keys_start); |
769 | /* We have four default TX keys and possibly four default RX keys. | |
e4d6b795 MB |
770 | * Physical mac 0 is mapped to physical key 4 or 8, depending |
771 | * on the firmware version. | |
772 | * So we must adjust the index here. | |
773 | */ | |
66d2d089 MB |
774 | index -= pairwise_keys_start; |
775 | B43_WARN_ON(index >= B43_NR_PAIRWISE_KEYS); | |
e4d6b795 MB |
776 | |
777 | if (addr) { | |
778 | addrtmp[0] = addr[0]; | |
779 | addrtmp[0] |= ((u32) (addr[1]) << 8); | |
780 | addrtmp[0] |= ((u32) (addr[2]) << 16); | |
781 | addrtmp[0] |= ((u32) (addr[3]) << 24); | |
782 | addrtmp[1] = addr[4]; | |
783 | addrtmp[1] |= ((u32) (addr[5]) << 8); | |
784 | } | |
785 | ||
66d2d089 MB |
786 | /* Receive match transmitter address (RCMTA) mechanism */ |
787 | b43_shm_write32(dev, B43_SHM_RCMTA, | |
788 | (index * 2) + 0, addrtmp[0]); | |
789 | b43_shm_write16(dev, B43_SHM_RCMTA, | |
790 | (index * 2) + 1, addrtmp[1]); | |
e4d6b795 MB |
791 | } |
792 | ||
035d0243 | 793 | /* The ucode will use phase1 key with TEK key to decrypt rx packets. |
794 | * When a packet is received, the iv32 is checked. | |
795 | * - if it doesn't the packet is returned without modification (and software | |
796 | * decryption can be done). That's what happen when iv16 wrap. | |
797 | * - if it does, the rc4 key is computed, and decryption is tried. | |
798 | * Either it will success and B43_RX_MAC_DEC is returned, | |
799 | * either it fails and B43_RX_MAC_DEC|B43_RX_MAC_DECERR is returned | |
800 | * and the packet is not usable (it got modified by the ucode). | |
801 | * So in order to never have B43_RX_MAC_DECERR, we should provide | |
802 | * a iv32 and phase1key that match. Because we drop packets in case of | |
803 | * B43_RX_MAC_DECERR, if we have a correct iv32 but a wrong phase1key, all | |
804 | * packets will be lost without higher layer knowing (ie no resync possible | |
805 | * until next wrap). | |
806 | * | |
807 | * NOTE : this should support 50 key like RCMTA because | |
808 | * (B43_SHM_SH_KEYIDXBLOCK - B43_SHM_SH_TKIPTSCTTAK)/14 = 50 | |
809 | */ | |
810 | static void rx_tkip_phase1_write(struct b43_wldev *dev, u8 index, u32 iv32, | |
811 | u16 *phase1key) | |
812 | { | |
813 | unsigned int i; | |
814 | u32 offset; | |
815 | u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2; | |
816 | ||
817 | if (!modparam_hwtkip) | |
818 | return; | |
819 | ||
820 | if (b43_new_kidx_api(dev)) | |
821 | pairwise_keys_start = B43_NR_GROUP_KEYS; | |
822 | ||
823 | B43_WARN_ON(index < pairwise_keys_start); | |
824 | /* We have four default TX keys and possibly four default RX keys. | |
825 | * Physical mac 0 is mapped to physical key 4 or 8, depending | |
826 | * on the firmware version. | |
827 | * So we must adjust the index here. | |
828 | */ | |
829 | index -= pairwise_keys_start; | |
830 | B43_WARN_ON(index >= B43_NR_PAIRWISE_KEYS); | |
831 | ||
832 | if (b43_debug(dev, B43_DBG_KEYS)) { | |
833 | b43dbg(dev->wl, "rx_tkip_phase1_write : idx 0x%x, iv32 0x%x\n", | |
834 | index, iv32); | |
835 | } | |
836 | /* Write the key to the RX tkip shared mem */ | |
837 | offset = B43_SHM_SH_TKIPTSCTTAK + index * (10 + 4); | |
838 | for (i = 0; i < 10; i += 2) { | |
839 | b43_shm_write16(dev, B43_SHM_SHARED, offset + i, | |
840 | phase1key ? phase1key[i / 2] : 0); | |
841 | } | |
842 | b43_shm_write16(dev, B43_SHM_SHARED, offset + i, iv32); | |
843 | b43_shm_write16(dev, B43_SHM_SHARED, offset + i + 2, iv32 >> 16); | |
844 | } | |
845 | ||
846 | static void b43_op_update_tkip_key(struct ieee80211_hw *hw, | |
b3fbdcf4 JB |
847 | struct ieee80211_vif *vif, |
848 | struct ieee80211_key_conf *keyconf, | |
849 | struct ieee80211_sta *sta, | |
850 | u32 iv32, u16 *phase1key) | |
035d0243 | 851 | { |
852 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
853 | struct b43_wldev *dev; | |
854 | int index = keyconf->hw_key_idx; | |
855 | ||
856 | if (B43_WARN_ON(!modparam_hwtkip)) | |
857 | return; | |
858 | ||
96869a39 MB |
859 | /* This is only called from the RX path through mac80211, where |
860 | * our mutex is already locked. */ | |
861 | B43_WARN_ON(!mutex_is_locked(&wl->mutex)); | |
035d0243 | 862 | dev = wl->current_dev; |
96869a39 | 863 | B43_WARN_ON(!dev || b43_status(dev) < B43_STAT_INITIALIZED); |
035d0243 | 864 | |
865 | keymac_write(dev, index, NULL); /* First zero out mac to avoid race */ | |
866 | ||
867 | rx_tkip_phase1_write(dev, index, iv32, phase1key); | |
b3fbdcf4 JB |
868 | /* only pairwise TKIP keys are supported right now */ |
869 | if (WARN_ON(!sta)) | |
96869a39 | 870 | return; |
b3fbdcf4 | 871 | keymac_write(dev, index, sta->addr); |
035d0243 | 872 | } |
873 | ||
e4d6b795 MB |
874 | static void do_key_write(struct b43_wldev *dev, |
875 | u8 index, u8 algorithm, | |
99da185a | 876 | const u8 *key, size_t key_len, const u8 *mac_addr) |
e4d6b795 MB |
877 | { |
878 | u8 buf[B43_SEC_KEYSIZE] = { 0, }; | |
66d2d089 | 879 | u8 pairwise_keys_start = B43_NR_GROUP_KEYS * 2; |
e4d6b795 MB |
880 | |
881 | if (b43_new_kidx_api(dev)) | |
66d2d089 | 882 | pairwise_keys_start = B43_NR_GROUP_KEYS; |
e4d6b795 | 883 | |
66d2d089 | 884 | B43_WARN_ON(index >= ARRAY_SIZE(dev->key)); |
e4d6b795 MB |
885 | B43_WARN_ON(key_len > B43_SEC_KEYSIZE); |
886 | ||
66d2d089 | 887 | if (index >= pairwise_keys_start) |
e4d6b795 | 888 | keymac_write(dev, index, NULL); /* First zero out mac. */ |
035d0243 | 889 | if (algorithm == B43_SEC_ALGO_TKIP) { |
890 | /* | |
891 | * We should provide an initial iv32, phase1key pair. | |
892 | * We could start with iv32=0 and compute the corresponding | |
893 | * phase1key, but this means calling ieee80211_get_tkip_key | |
894 | * with a fake skb (or export other tkip function). | |
895 | * Because we are lazy we hope iv32 won't start with | |
896 | * 0xffffffff and let's b43_op_update_tkip_key provide a | |
897 | * correct pair. | |
898 | */ | |
899 | rx_tkip_phase1_write(dev, index, 0xffffffff, (u16*)buf); | |
900 | } else if (index >= pairwise_keys_start) /* clear it */ | |
901 | rx_tkip_phase1_write(dev, index, 0, NULL); | |
e4d6b795 MB |
902 | if (key) |
903 | memcpy(buf, key, key_len); | |
904 | key_write(dev, index, algorithm, buf); | |
66d2d089 | 905 | if (index >= pairwise_keys_start) |
e4d6b795 MB |
906 | keymac_write(dev, index, mac_addr); |
907 | ||
908 | dev->key[index].algorithm = algorithm; | |
909 | } | |
910 | ||
911 | static int b43_key_write(struct b43_wldev *dev, | |
912 | int index, u8 algorithm, | |
99da185a JD |
913 | const u8 *key, size_t key_len, |
914 | const u8 *mac_addr, | |
e4d6b795 MB |
915 | struct ieee80211_key_conf *keyconf) |
916 | { | |
917 | int i; | |
66d2d089 | 918 | int pairwise_keys_start; |
e4d6b795 | 919 | |
035d0243 | 920 | /* For ALG_TKIP the key is encoded as a 256-bit (32 byte) data block: |
921 | * - Temporal Encryption Key (128 bits) | |
922 | * - Temporal Authenticator Tx MIC Key (64 bits) | |
923 | * - Temporal Authenticator Rx MIC Key (64 bits) | |
924 | * | |
925 | * Hardware only store TEK | |
926 | */ | |
927 | if (algorithm == B43_SEC_ALGO_TKIP && key_len == 32) | |
928 | key_len = 16; | |
e4d6b795 MB |
929 | if (key_len > B43_SEC_KEYSIZE) |
930 | return -EINVAL; | |
66d2d089 | 931 | for (i = 0; i < ARRAY_SIZE(dev->key); i++) { |
e4d6b795 MB |
932 | /* Check that we don't already have this key. */ |
933 | B43_WARN_ON(dev->key[i].keyconf == keyconf); | |
934 | } | |
935 | if (index < 0) { | |
e808e586 | 936 | /* Pairwise key. Get an empty slot for the key. */ |
e4d6b795 | 937 | if (b43_new_kidx_api(dev)) |
66d2d089 | 938 | pairwise_keys_start = B43_NR_GROUP_KEYS; |
e4d6b795 | 939 | else |
66d2d089 MB |
940 | pairwise_keys_start = B43_NR_GROUP_KEYS * 2; |
941 | for (i = pairwise_keys_start; | |
942 | i < pairwise_keys_start + B43_NR_PAIRWISE_KEYS; | |
943 | i++) { | |
944 | B43_WARN_ON(i >= ARRAY_SIZE(dev->key)); | |
e4d6b795 MB |
945 | if (!dev->key[i].keyconf) { |
946 | /* found empty */ | |
947 | index = i; | |
948 | break; | |
949 | } | |
950 | } | |
951 | if (index < 0) { | |
e808e586 | 952 | b43warn(dev->wl, "Out of hardware key memory\n"); |
e4d6b795 MB |
953 | return -ENOSPC; |
954 | } | |
955 | } else | |
956 | B43_WARN_ON(index > 3); | |
957 | ||
958 | do_key_write(dev, index, algorithm, key, key_len, mac_addr); | |
959 | if ((index <= 3) && !b43_new_kidx_api(dev)) { | |
960 | /* Default RX key */ | |
961 | B43_WARN_ON(mac_addr); | |
962 | do_key_write(dev, index + 4, algorithm, key, key_len, NULL); | |
963 | } | |
964 | keyconf->hw_key_idx = index; | |
965 | dev->key[index].keyconf = keyconf; | |
966 | ||
967 | return 0; | |
968 | } | |
969 | ||
970 | static int b43_key_clear(struct b43_wldev *dev, int index) | |
971 | { | |
66d2d089 | 972 | if (B43_WARN_ON((index < 0) || (index >= ARRAY_SIZE(dev->key)))) |
e4d6b795 MB |
973 | return -EINVAL; |
974 | do_key_write(dev, index, B43_SEC_ALGO_NONE, | |
975 | NULL, B43_SEC_KEYSIZE, NULL); | |
976 | if ((index <= 3) && !b43_new_kidx_api(dev)) { | |
977 | do_key_write(dev, index + 4, B43_SEC_ALGO_NONE, | |
978 | NULL, B43_SEC_KEYSIZE, NULL); | |
979 | } | |
980 | dev->key[index].keyconf = NULL; | |
981 | ||
982 | return 0; | |
983 | } | |
984 | ||
985 | static void b43_clear_keys(struct b43_wldev *dev) | |
986 | { | |
66d2d089 | 987 | int i, count; |
e4d6b795 | 988 | |
66d2d089 MB |
989 | if (b43_new_kidx_api(dev)) |
990 | count = B43_NR_GROUP_KEYS + B43_NR_PAIRWISE_KEYS; | |
991 | else | |
992 | count = B43_NR_GROUP_KEYS * 2 + B43_NR_PAIRWISE_KEYS; | |
993 | for (i = 0; i < count; i++) | |
e4d6b795 MB |
994 | b43_key_clear(dev, i); |
995 | } | |
996 | ||
9cf7f247 MB |
997 | static void b43_dump_keymemory(struct b43_wldev *dev) |
998 | { | |
66d2d089 | 999 | unsigned int i, index, count, offset, pairwise_keys_start; |
9cf7f247 MB |
1000 | u8 mac[ETH_ALEN]; |
1001 | u16 algo; | |
1002 | u32 rcmta0; | |
1003 | u16 rcmta1; | |
1004 | u64 hf; | |
1005 | struct b43_key *key; | |
1006 | ||
1007 | if (!b43_debug(dev, B43_DBG_KEYS)) | |
1008 | return; | |
1009 | ||
1010 | hf = b43_hf_read(dev); | |
1011 | b43dbg(dev->wl, "Hardware key memory dump: USEDEFKEYS=%u\n", | |
1012 | !!(hf & B43_HF_USEDEFKEYS)); | |
66d2d089 MB |
1013 | if (b43_new_kidx_api(dev)) { |
1014 | pairwise_keys_start = B43_NR_GROUP_KEYS; | |
1015 | count = B43_NR_GROUP_KEYS + B43_NR_PAIRWISE_KEYS; | |
1016 | } else { | |
1017 | pairwise_keys_start = B43_NR_GROUP_KEYS * 2; | |
1018 | count = B43_NR_GROUP_KEYS * 2 + B43_NR_PAIRWISE_KEYS; | |
1019 | } | |
1020 | for (index = 0; index < count; index++) { | |
9cf7f247 MB |
1021 | key = &(dev->key[index]); |
1022 | printk(KERN_DEBUG "Key slot %02u: %s", | |
1023 | index, (key->keyconf == NULL) ? " " : "*"); | |
1024 | offset = dev->ktp + (index * B43_SEC_KEYSIZE); | |
1025 | for (i = 0; i < B43_SEC_KEYSIZE; i += 2) { | |
1026 | u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i); | |
1027 | printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF)); | |
1028 | } | |
1029 | ||
1030 | algo = b43_shm_read16(dev, B43_SHM_SHARED, | |
1031 | B43_SHM_SH_KEYIDXBLOCK + (index * 2)); | |
1032 | printk(" Algo: %04X/%02X", algo, key->algorithm); | |
1033 | ||
66d2d089 | 1034 | if (index >= pairwise_keys_start) { |
035d0243 | 1035 | if (key->algorithm == B43_SEC_ALGO_TKIP) { |
1036 | printk(" TKIP: "); | |
1037 | offset = B43_SHM_SH_TKIPTSCTTAK + (index - 4) * (10 + 4); | |
1038 | for (i = 0; i < 14; i += 2) { | |
1039 | u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i); | |
1040 | printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF)); | |
1041 | } | |
1042 | } | |
9cf7f247 | 1043 | rcmta0 = b43_shm_read32(dev, B43_SHM_RCMTA, |
66d2d089 | 1044 | ((index - pairwise_keys_start) * 2) + 0); |
9cf7f247 | 1045 | rcmta1 = b43_shm_read16(dev, B43_SHM_RCMTA, |
66d2d089 | 1046 | ((index - pairwise_keys_start) * 2) + 1); |
9cf7f247 MB |
1047 | *((__le32 *)(&mac[0])) = cpu_to_le32(rcmta0); |
1048 | *((__le16 *)(&mac[4])) = cpu_to_le16(rcmta1); | |
e91d8334 | 1049 | printk(" MAC: %pM", mac); |
9cf7f247 MB |
1050 | } else |
1051 | printk(" DEFAULT KEY"); | |
1052 | printk("\n"); | |
1053 | } | |
1054 | } | |
1055 | ||
e4d6b795 MB |
1056 | void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags) |
1057 | { | |
1058 | u32 macctl; | |
1059 | u16 ucstat; | |
1060 | bool hwps; | |
1061 | bool awake; | |
1062 | int i; | |
1063 | ||
1064 | B43_WARN_ON((ps_flags & B43_PS_ENABLED) && | |
1065 | (ps_flags & B43_PS_DISABLED)); | |
1066 | B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP)); | |
1067 | ||
1068 | if (ps_flags & B43_PS_ENABLED) { | |
1069 | hwps = 1; | |
1070 | } else if (ps_flags & B43_PS_DISABLED) { | |
1071 | hwps = 0; | |
1072 | } else { | |
1073 | //TODO: If powersave is not off and FIXME is not set and we are not in adhoc | |
1074 | // and thus is not an AP and we are associated, set bit 25 | |
1075 | } | |
1076 | if (ps_flags & B43_PS_AWAKE) { | |
1077 | awake = 1; | |
1078 | } else if (ps_flags & B43_PS_ASLEEP) { | |
1079 | awake = 0; | |
1080 | } else { | |
1081 | //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME, | |
1082 | // or we are associated, or FIXME, or the latest PS-Poll packet sent was | |
1083 | // successful, set bit26 | |
1084 | } | |
1085 | ||
1086 | /* FIXME: For now we force awake-on and hwps-off */ | |
1087 | hwps = 0; | |
1088 | awake = 1; | |
1089 | ||
1090 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
1091 | if (hwps) | |
1092 | macctl |= B43_MACCTL_HWPS; | |
1093 | else | |
1094 | macctl &= ~B43_MACCTL_HWPS; | |
1095 | if (awake) | |
1096 | macctl |= B43_MACCTL_AWAKE; | |
1097 | else | |
1098 | macctl &= ~B43_MACCTL_AWAKE; | |
1099 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
1100 | /* Commit write */ | |
1101 | b43_read32(dev, B43_MMIO_MACCTL); | |
1102 | if (awake && dev->dev->id.revision >= 5) { | |
1103 | /* Wait for the microcode to wake up. */ | |
1104 | for (i = 0; i < 100; i++) { | |
1105 | ucstat = b43_shm_read16(dev, B43_SHM_SHARED, | |
1106 | B43_SHM_SH_UCODESTAT); | |
1107 | if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP) | |
1108 | break; | |
1109 | udelay(10); | |
1110 | } | |
1111 | } | |
1112 | } | |
1113 | ||
e4d6b795 MB |
1114 | void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags) |
1115 | { | |
1116 | u32 tmslow; | |
1117 | u32 macctl; | |
1118 | ||
1119 | flags |= B43_TMSLOW_PHYCLKEN; | |
1120 | flags |= B43_TMSLOW_PHYRESET; | |
1121 | ssb_device_enable(dev->dev, flags); | |
1122 | msleep(2); /* Wait for the PLL to turn on. */ | |
1123 | ||
1124 | /* Now take the PHY out of Reset again */ | |
1125 | tmslow = ssb_read32(dev->dev, SSB_TMSLOW); | |
1126 | tmslow |= SSB_TMSLOW_FGC; | |
1127 | tmslow &= ~B43_TMSLOW_PHYRESET; | |
1128 | ssb_write32(dev->dev, SSB_TMSLOW, tmslow); | |
1129 | ssb_read32(dev->dev, SSB_TMSLOW); /* flush */ | |
1130 | msleep(1); | |
1131 | tmslow &= ~SSB_TMSLOW_FGC; | |
1132 | ssb_write32(dev->dev, SSB_TMSLOW, tmslow); | |
1133 | ssb_read32(dev->dev, SSB_TMSLOW); /* flush */ | |
1134 | msleep(1); | |
1135 | ||
fb11137a MB |
1136 | /* Turn Analog ON, but only if we already know the PHY-type. |
1137 | * This protects against very early setup where we don't know the | |
1138 | * PHY-type, yet. wireless_core_reset will be called once again later, | |
1139 | * when we know the PHY-type. */ | |
1140 | if (dev->phy.ops) | |
cb24f57f | 1141 | dev->phy.ops->switch_analog(dev, 1); |
e4d6b795 MB |
1142 | |
1143 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
1144 | macctl &= ~B43_MACCTL_GMODE; | |
1145 | if (flags & B43_TMSLOW_GMODE) | |
1146 | macctl |= B43_MACCTL_GMODE; | |
1147 | macctl |= B43_MACCTL_IHR_ENABLED; | |
1148 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
1149 | } | |
1150 | ||
1151 | static void handle_irq_transmit_status(struct b43_wldev *dev) | |
1152 | { | |
1153 | u32 v0, v1; | |
1154 | u16 tmp; | |
1155 | struct b43_txstatus stat; | |
1156 | ||
1157 | while (1) { | |
1158 | v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0); | |
1159 | if (!(v0 & 0x00000001)) | |
1160 | break; | |
1161 | v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1); | |
1162 | ||
1163 | stat.cookie = (v0 >> 16); | |
1164 | stat.seq = (v1 & 0x0000FFFF); | |
1165 | stat.phy_stat = ((v1 & 0x00FF0000) >> 16); | |
1166 | tmp = (v0 & 0x0000FFFF); | |
1167 | stat.frame_count = ((tmp & 0xF000) >> 12); | |
1168 | stat.rts_count = ((tmp & 0x0F00) >> 8); | |
1169 | stat.supp_reason = ((tmp & 0x001C) >> 2); | |
1170 | stat.pm_indicated = !!(tmp & 0x0080); | |
1171 | stat.intermediate = !!(tmp & 0x0040); | |
1172 | stat.for_ampdu = !!(tmp & 0x0020); | |
1173 | stat.acked = !!(tmp & 0x0002); | |
1174 | ||
1175 | b43_handle_txstatus(dev, &stat); | |
1176 | } | |
1177 | } | |
1178 | ||
1179 | static void drain_txstatus_queue(struct b43_wldev *dev) | |
1180 | { | |
1181 | u32 dummy; | |
1182 | ||
1183 | if (dev->dev->id.revision < 5) | |
1184 | return; | |
1185 | /* Read all entries from the microcode TXstatus FIFO | |
1186 | * and throw them away. | |
1187 | */ | |
1188 | while (1) { | |
1189 | dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0); | |
1190 | if (!(dummy & 0x00000001)) | |
1191 | break; | |
1192 | dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1); | |
1193 | } | |
1194 | } | |
1195 | ||
1196 | static u32 b43_jssi_read(struct b43_wldev *dev) | |
1197 | { | |
1198 | u32 val = 0; | |
1199 | ||
1200 | val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A); | |
1201 | val <<= 16; | |
1202 | val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088); | |
1203 | ||
1204 | return val; | |
1205 | } | |
1206 | ||
1207 | static void b43_jssi_write(struct b43_wldev *dev, u32 jssi) | |
1208 | { | |
1209 | b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF)); | |
1210 | b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16); | |
1211 | } | |
1212 | ||
1213 | static void b43_generate_noise_sample(struct b43_wldev *dev) | |
1214 | { | |
1215 | b43_jssi_write(dev, 0x7F7F7F7F); | |
aa6c7ae2 MB |
1216 | b43_write32(dev, B43_MMIO_MACCMD, |
1217 | b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE); | |
e4d6b795 MB |
1218 | } |
1219 | ||
1220 | static void b43_calculate_link_quality(struct b43_wldev *dev) | |
1221 | { | |
1222 | /* Top half of Link Quality calculation. */ | |
1223 | ||
ef1a628d MB |
1224 | if (dev->phy.type != B43_PHYTYPE_G) |
1225 | return; | |
e4d6b795 MB |
1226 | if (dev->noisecalc.calculation_running) |
1227 | return; | |
e4d6b795 MB |
1228 | dev->noisecalc.calculation_running = 1; |
1229 | dev->noisecalc.nr_samples = 0; | |
1230 | ||
1231 | b43_generate_noise_sample(dev); | |
1232 | } | |
1233 | ||
1234 | static void handle_irq_noise(struct b43_wldev *dev) | |
1235 | { | |
ef1a628d | 1236 | struct b43_phy_g *phy = dev->phy.g; |
e4d6b795 MB |
1237 | u16 tmp; |
1238 | u8 noise[4]; | |
1239 | u8 i, j; | |
1240 | s32 average; | |
1241 | ||
1242 | /* Bottom half of Link Quality calculation. */ | |
1243 | ||
ef1a628d MB |
1244 | if (dev->phy.type != B43_PHYTYPE_G) |
1245 | return; | |
1246 | ||
98a3b2fe MB |
1247 | /* Possible race condition: It might be possible that the user |
1248 | * changed to a different channel in the meantime since we | |
1249 | * started the calculation. We ignore that fact, since it's | |
1250 | * not really that much of a problem. The background noise is | |
1251 | * an estimation only anyway. Slightly wrong results will get damped | |
1252 | * by the averaging of the 8 sample rounds. Additionally the | |
1253 | * value is shortlived. So it will be replaced by the next noise | |
1254 | * calculation round soon. */ | |
1255 | ||
e4d6b795 | 1256 | B43_WARN_ON(!dev->noisecalc.calculation_running); |
1a09404a | 1257 | *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev)); |
e4d6b795 MB |
1258 | if (noise[0] == 0x7F || noise[1] == 0x7F || |
1259 | noise[2] == 0x7F || noise[3] == 0x7F) | |
1260 | goto generate_new; | |
1261 | ||
1262 | /* Get the noise samples. */ | |
1263 | B43_WARN_ON(dev->noisecalc.nr_samples >= 8); | |
1264 | i = dev->noisecalc.nr_samples; | |
cdbf0846 HH |
1265 | noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); |
1266 | noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); | |
1267 | noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); | |
1268 | noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); | |
e4d6b795 MB |
1269 | dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]]; |
1270 | dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]]; | |
1271 | dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]]; | |
1272 | dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]]; | |
1273 | dev->noisecalc.nr_samples++; | |
1274 | if (dev->noisecalc.nr_samples == 8) { | |
1275 | /* Calculate the Link Quality by the noise samples. */ | |
1276 | average = 0; | |
1277 | for (i = 0; i < 8; i++) { | |
1278 | for (j = 0; j < 4; j++) | |
1279 | average += dev->noisecalc.samples[i][j]; | |
1280 | } | |
1281 | average /= (8 * 4); | |
1282 | average *= 125; | |
1283 | average += 64; | |
1284 | average /= 128; | |
1285 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C); | |
1286 | tmp = (tmp / 128) & 0x1F; | |
1287 | if (tmp >= 8) | |
1288 | average += 2; | |
1289 | else | |
1290 | average -= 25; | |
1291 | if (tmp == 8) | |
1292 | average -= 72; | |
1293 | else | |
1294 | average -= 48; | |
1295 | ||
1296 | dev->stats.link_noise = average; | |
e4d6b795 MB |
1297 | dev->noisecalc.calculation_running = 0; |
1298 | return; | |
1299 | } | |
98a3b2fe | 1300 | generate_new: |
e4d6b795 MB |
1301 | b43_generate_noise_sample(dev); |
1302 | } | |
1303 | ||
1304 | static void handle_irq_tbtt_indication(struct b43_wldev *dev) | |
1305 | { | |
05c914fe | 1306 | if (b43_is_mode(dev->wl, NL80211_IFTYPE_AP)) { |
e4d6b795 MB |
1307 | ///TODO: PS TBTT |
1308 | } else { | |
1309 | if (1 /*FIXME: the last PSpoll frame was sent successfully */ ) | |
1310 | b43_power_saving_ctl_bits(dev, 0); | |
1311 | } | |
05c914fe | 1312 | if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) |
aa6c7ae2 | 1313 | dev->dfq_valid = 1; |
e4d6b795 MB |
1314 | } |
1315 | ||
1316 | static void handle_irq_atim_end(struct b43_wldev *dev) | |
1317 | { | |
aa6c7ae2 MB |
1318 | if (dev->dfq_valid) { |
1319 | b43_write32(dev, B43_MMIO_MACCMD, | |
1320 | b43_read32(dev, B43_MMIO_MACCMD) | |
1321 | | B43_MACCMD_DFQ_VALID); | |
1322 | dev->dfq_valid = 0; | |
1323 | } | |
e4d6b795 MB |
1324 | } |
1325 | ||
1326 | static void handle_irq_pmq(struct b43_wldev *dev) | |
1327 | { | |
1328 | u32 tmp; | |
1329 | ||
1330 | //TODO: AP mode. | |
1331 | ||
1332 | while (1) { | |
1333 | tmp = b43_read32(dev, B43_MMIO_PS_STATUS); | |
1334 | if (!(tmp & 0x00000008)) | |
1335 | break; | |
1336 | } | |
1337 | /* 16bit write is odd, but correct. */ | |
1338 | b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002); | |
1339 | } | |
1340 | ||
1341 | static void b43_write_template_common(struct b43_wldev *dev, | |
99da185a | 1342 | const u8 *data, u16 size, |
e4d6b795 MB |
1343 | u16 ram_offset, |
1344 | u16 shm_size_offset, u8 rate) | |
1345 | { | |
1346 | u32 i, tmp; | |
1347 | struct b43_plcp_hdr4 plcp; | |
1348 | ||
1349 | plcp.data = 0; | |
1350 | b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate); | |
1351 | b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data)); | |
1352 | ram_offset += sizeof(u32); | |
1353 | /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet. | |
1354 | * So leave the first two bytes of the next write blank. | |
1355 | */ | |
1356 | tmp = (u32) (data[0]) << 16; | |
1357 | tmp |= (u32) (data[1]) << 24; | |
1358 | b43_ram_write(dev, ram_offset, tmp); | |
1359 | ram_offset += sizeof(u32); | |
1360 | for (i = 2; i < size; i += sizeof(u32)) { | |
1361 | tmp = (u32) (data[i + 0]); | |
1362 | if (i + 1 < size) | |
1363 | tmp |= (u32) (data[i + 1]) << 8; | |
1364 | if (i + 2 < size) | |
1365 | tmp |= (u32) (data[i + 2]) << 16; | |
1366 | if (i + 3 < size) | |
1367 | tmp |= (u32) (data[i + 3]) << 24; | |
1368 | b43_ram_write(dev, ram_offset + i - 2, tmp); | |
1369 | } | |
1370 | b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset, | |
1371 | size + sizeof(struct b43_plcp_hdr6)); | |
1372 | } | |
1373 | ||
5042c507 MB |
1374 | /* Check if the use of the antenna that ieee80211 told us to |
1375 | * use is possible. This will fall back to DEFAULT. | |
1376 | * "antenna_nr" is the antenna identifier we got from ieee80211. */ | |
1377 | u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev, | |
1378 | u8 antenna_nr) | |
1379 | { | |
1380 | u8 antenna_mask; | |
1381 | ||
1382 | if (antenna_nr == 0) { | |
1383 | /* Zero means "use default antenna". That's always OK. */ | |
1384 | return 0; | |
1385 | } | |
1386 | ||
1387 | /* Get the mask of available antennas. */ | |
1388 | if (dev->phy.gmode) | |
1389 | antenna_mask = dev->dev->bus->sprom.ant_available_bg; | |
1390 | else | |
1391 | antenna_mask = dev->dev->bus->sprom.ant_available_a; | |
1392 | ||
1393 | if (!(antenna_mask & (1 << (antenna_nr - 1)))) { | |
1394 | /* This antenna is not available. Fall back to default. */ | |
1395 | return 0; | |
1396 | } | |
1397 | ||
1398 | return antenna_nr; | |
1399 | } | |
1400 | ||
5042c507 MB |
1401 | /* Convert a b43 antenna number value to the PHY TX control value. */ |
1402 | static u16 b43_antenna_to_phyctl(int antenna) | |
1403 | { | |
1404 | switch (antenna) { | |
1405 | case B43_ANTENNA0: | |
1406 | return B43_TXH_PHY_ANT0; | |
1407 | case B43_ANTENNA1: | |
1408 | return B43_TXH_PHY_ANT1; | |
1409 | case B43_ANTENNA2: | |
1410 | return B43_TXH_PHY_ANT2; | |
1411 | case B43_ANTENNA3: | |
1412 | return B43_TXH_PHY_ANT3; | |
64e368bf GS |
1413 | case B43_ANTENNA_AUTO0: |
1414 | case B43_ANTENNA_AUTO1: | |
5042c507 MB |
1415 | return B43_TXH_PHY_ANT01AUTO; |
1416 | } | |
1417 | B43_WARN_ON(1); | |
1418 | return 0; | |
1419 | } | |
1420 | ||
e4d6b795 MB |
1421 | static void b43_write_beacon_template(struct b43_wldev *dev, |
1422 | u16 ram_offset, | |
5042c507 | 1423 | u16 shm_size_offset) |
e4d6b795 | 1424 | { |
47f76ca3 | 1425 | unsigned int i, len, variable_len; |
e66fee6a MB |
1426 | const struct ieee80211_mgmt *bcn; |
1427 | const u8 *ie; | |
1428 | bool tim_found = 0; | |
5042c507 MB |
1429 | unsigned int rate; |
1430 | u16 ctl; | |
1431 | int antenna; | |
e039fa4a | 1432 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon); |
e4d6b795 | 1433 | |
e66fee6a MB |
1434 | bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data); |
1435 | len = min((size_t) dev->wl->current_beacon->len, | |
e4d6b795 | 1436 | 0x200 - sizeof(struct b43_plcp_hdr6)); |
e039fa4a | 1437 | rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value; |
e66fee6a MB |
1438 | |
1439 | b43_write_template_common(dev, (const u8 *)bcn, | |
e4d6b795 | 1440 | len, ram_offset, shm_size_offset, rate); |
e66fee6a | 1441 | |
5042c507 | 1442 | /* Write the PHY TX control parameters. */ |
0f4ac38b | 1443 | antenna = B43_ANTENNA_DEFAULT; |
5042c507 MB |
1444 | antenna = b43_antenna_to_phyctl(antenna); |
1445 | ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL); | |
1446 | /* We can't send beacons with short preamble. Would get PHY errors. */ | |
1447 | ctl &= ~B43_TXH_PHY_SHORTPRMBL; | |
1448 | ctl &= ~B43_TXH_PHY_ANT; | |
1449 | ctl &= ~B43_TXH_PHY_ENC; | |
1450 | ctl |= antenna; | |
1451 | if (b43_is_cck_rate(rate)) | |
1452 | ctl |= B43_TXH_PHY_ENC_CCK; | |
1453 | else | |
1454 | ctl |= B43_TXH_PHY_ENC_OFDM; | |
1455 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl); | |
1456 | ||
e66fee6a MB |
1457 | /* Find the position of the TIM and the DTIM_period value |
1458 | * and write them to SHM. */ | |
1459 | ie = bcn->u.beacon.variable; | |
47f76ca3 MB |
1460 | variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable); |
1461 | for (i = 0; i < variable_len - 2; ) { | |
e66fee6a MB |
1462 | uint8_t ie_id, ie_len; |
1463 | ||
1464 | ie_id = ie[i]; | |
1465 | ie_len = ie[i + 1]; | |
1466 | if (ie_id == 5) { | |
1467 | u16 tim_position; | |
1468 | u16 dtim_period; | |
1469 | /* This is the TIM Information Element */ | |
1470 | ||
1471 | /* Check whether the ie_len is in the beacon data range. */ | |
47f76ca3 | 1472 | if (variable_len < ie_len + 2 + i) |
e66fee6a MB |
1473 | break; |
1474 | /* A valid TIM is at least 4 bytes long. */ | |
1475 | if (ie_len < 4) | |
1476 | break; | |
1477 | tim_found = 1; | |
1478 | ||
1479 | tim_position = sizeof(struct b43_plcp_hdr6); | |
1480 | tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable); | |
1481 | tim_position += i; | |
1482 | ||
1483 | dtim_period = ie[i + 3]; | |
1484 | ||
1485 | b43_shm_write16(dev, B43_SHM_SHARED, | |
1486 | B43_SHM_SH_TIMBPOS, tim_position); | |
1487 | b43_shm_write16(dev, B43_SHM_SHARED, | |
1488 | B43_SHM_SH_DTIMPER, dtim_period); | |
1489 | break; | |
1490 | } | |
1491 | i += ie_len + 2; | |
1492 | } | |
1493 | if (!tim_found) { | |
04dea136 JB |
1494 | /* |
1495 | * If ucode wants to modify TIM do it behind the beacon, this | |
1496 | * will happen, for example, when doing mesh networking. | |
1497 | */ | |
1498 | b43_shm_write16(dev, B43_SHM_SHARED, | |
1499 | B43_SHM_SH_TIMBPOS, | |
1500 | len + sizeof(struct b43_plcp_hdr6)); | |
1501 | b43_shm_write16(dev, B43_SHM_SHARED, | |
1502 | B43_SHM_SH_DTIMPER, 0); | |
1503 | } | |
1504 | b43dbg(dev->wl, "Updated beacon template at 0x%x\n", ram_offset); | |
e4d6b795 MB |
1505 | } |
1506 | ||
6b4bec01 MB |
1507 | static void b43_upload_beacon0(struct b43_wldev *dev) |
1508 | { | |
1509 | struct b43_wl *wl = dev->wl; | |
1510 | ||
1511 | if (wl->beacon0_uploaded) | |
1512 | return; | |
1513 | b43_write_beacon_template(dev, 0x68, 0x18); | |
6b4bec01 MB |
1514 | wl->beacon0_uploaded = 1; |
1515 | } | |
1516 | ||
1517 | static void b43_upload_beacon1(struct b43_wldev *dev) | |
1518 | { | |
1519 | struct b43_wl *wl = dev->wl; | |
1520 | ||
1521 | if (wl->beacon1_uploaded) | |
1522 | return; | |
1523 | b43_write_beacon_template(dev, 0x468, 0x1A); | |
1524 | wl->beacon1_uploaded = 1; | |
1525 | } | |
1526 | ||
c97a4ccc MB |
1527 | static void handle_irq_beacon(struct b43_wldev *dev) |
1528 | { | |
1529 | struct b43_wl *wl = dev->wl; | |
1530 | u32 cmd, beacon0_valid, beacon1_valid; | |
1531 | ||
05c914fe JB |
1532 | if (!b43_is_mode(wl, NL80211_IFTYPE_AP) && |
1533 | !b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT)) | |
c97a4ccc MB |
1534 | return; |
1535 | ||
1536 | /* This is the bottom half of the asynchronous beacon update. */ | |
1537 | ||
1538 | /* Ignore interrupt in the future. */ | |
13790728 | 1539 | dev->irq_mask &= ~B43_IRQ_BEACON; |
c97a4ccc MB |
1540 | |
1541 | cmd = b43_read32(dev, B43_MMIO_MACCMD); | |
1542 | beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID); | |
1543 | beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID); | |
1544 | ||
1545 | /* Schedule interrupt manually, if busy. */ | |
1546 | if (beacon0_valid && beacon1_valid) { | |
1547 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON); | |
13790728 | 1548 | dev->irq_mask |= B43_IRQ_BEACON; |
c97a4ccc MB |
1549 | return; |
1550 | } | |
1551 | ||
6b4bec01 MB |
1552 | if (unlikely(wl->beacon_templates_virgin)) { |
1553 | /* We never uploaded a beacon before. | |
1554 | * Upload both templates now, but only mark one valid. */ | |
1555 | wl->beacon_templates_virgin = 0; | |
1556 | b43_upload_beacon0(dev); | |
1557 | b43_upload_beacon1(dev); | |
c97a4ccc MB |
1558 | cmd = b43_read32(dev, B43_MMIO_MACCMD); |
1559 | cmd |= B43_MACCMD_BEACON0_VALID; | |
1560 | b43_write32(dev, B43_MMIO_MACCMD, cmd); | |
6b4bec01 MB |
1561 | } else { |
1562 | if (!beacon0_valid) { | |
1563 | b43_upload_beacon0(dev); | |
1564 | cmd = b43_read32(dev, B43_MMIO_MACCMD); | |
1565 | cmd |= B43_MACCMD_BEACON0_VALID; | |
1566 | b43_write32(dev, B43_MMIO_MACCMD, cmd); | |
1567 | } else if (!beacon1_valid) { | |
1568 | b43_upload_beacon1(dev); | |
1569 | cmd = b43_read32(dev, B43_MMIO_MACCMD); | |
1570 | cmd |= B43_MACCMD_BEACON1_VALID; | |
1571 | b43_write32(dev, B43_MMIO_MACCMD, cmd); | |
c97a4ccc | 1572 | } |
c97a4ccc MB |
1573 | } |
1574 | } | |
1575 | ||
36dbd954 MB |
1576 | static void b43_do_beacon_update_trigger_work(struct b43_wldev *dev) |
1577 | { | |
1578 | u32 old_irq_mask = dev->irq_mask; | |
1579 | ||
1580 | /* update beacon right away or defer to irq */ | |
1581 | handle_irq_beacon(dev); | |
1582 | if (old_irq_mask != dev->irq_mask) { | |
1583 | /* The handler updated the IRQ mask. */ | |
1584 | B43_WARN_ON(!dev->irq_mask); | |
1585 | if (b43_read32(dev, B43_MMIO_GEN_IRQ_MASK)) { | |
1586 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); | |
1587 | } else { | |
1588 | /* Device interrupts are currently disabled. That means | |
1589 | * we just ran the hardirq handler and scheduled the | |
1590 | * IRQ thread. The thread will write the IRQ mask when | |
1591 | * it finished, so there's nothing to do here. Writing | |
1592 | * the mask _here_ would incorrectly re-enable IRQs. */ | |
1593 | } | |
1594 | } | |
1595 | } | |
1596 | ||
a82d9922 MB |
1597 | static void b43_beacon_update_trigger_work(struct work_struct *work) |
1598 | { | |
1599 | struct b43_wl *wl = container_of(work, struct b43_wl, | |
1600 | beacon_update_trigger); | |
1601 | struct b43_wldev *dev; | |
1602 | ||
1603 | mutex_lock(&wl->mutex); | |
1604 | dev = wl->current_dev; | |
1605 | if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) { | |
3dbba8e2 | 1606 | if (dev->dev->bus->bustype == SSB_BUSTYPE_SDIO) { |
36dbd954 MB |
1607 | /* wl->mutex is enough. */ |
1608 | b43_do_beacon_update_trigger_work(dev); | |
1609 | mmiowb(); | |
1610 | } else { | |
1611 | spin_lock_irq(&wl->hardirq_lock); | |
1612 | b43_do_beacon_update_trigger_work(dev); | |
1613 | mmiowb(); | |
1614 | spin_unlock_irq(&wl->hardirq_lock); | |
1615 | } | |
a82d9922 MB |
1616 | } |
1617 | mutex_unlock(&wl->mutex); | |
1618 | } | |
1619 | ||
d4df6f1a | 1620 | /* Asynchronously update the packet templates in template RAM. |
36dbd954 | 1621 | * Locking: Requires wl->mutex to be locked. */ |
9d139c81 | 1622 | static void b43_update_templates(struct b43_wl *wl) |
e4d6b795 | 1623 | { |
9d139c81 JB |
1624 | struct sk_buff *beacon; |
1625 | ||
e66fee6a MB |
1626 | /* This is the top half of the ansynchronous beacon update. |
1627 | * The bottom half is the beacon IRQ. | |
1628 | * Beacon update must be asynchronous to avoid sending an | |
1629 | * invalid beacon. This can happen for example, if the firmware | |
1630 | * transmits a beacon while we are updating it. */ | |
e4d6b795 | 1631 | |
9d139c81 JB |
1632 | /* We could modify the existing beacon and set the aid bit in |
1633 | * the TIM field, but that would probably require resizing and | |
1634 | * moving of data within the beacon template. | |
1635 | * Simply request a new beacon and let mac80211 do the hard work. */ | |
1636 | beacon = ieee80211_beacon_get(wl->hw, wl->vif); | |
1637 | if (unlikely(!beacon)) | |
1638 | return; | |
1639 | ||
e66fee6a MB |
1640 | if (wl->current_beacon) |
1641 | dev_kfree_skb_any(wl->current_beacon); | |
1642 | wl->current_beacon = beacon; | |
1643 | wl->beacon0_uploaded = 0; | |
1644 | wl->beacon1_uploaded = 0; | |
42935eca | 1645 | ieee80211_queue_work(wl->hw, &wl->beacon_update_trigger); |
e4d6b795 MB |
1646 | } |
1647 | ||
e4d6b795 MB |
1648 | static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int) |
1649 | { | |
1650 | b43_time_lock(dev); | |
1651 | if (dev->dev->id.revision >= 3) { | |
a82d9922 MB |
1652 | b43_write32(dev, B43_MMIO_TSF_CFP_REP, (beacon_int << 16)); |
1653 | b43_write32(dev, B43_MMIO_TSF_CFP_START, (beacon_int << 10)); | |
e4d6b795 MB |
1654 | } else { |
1655 | b43_write16(dev, 0x606, (beacon_int >> 6)); | |
1656 | b43_write16(dev, 0x610, beacon_int); | |
1657 | } | |
1658 | b43_time_unlock(dev); | |
a82d9922 | 1659 | b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int); |
e4d6b795 MB |
1660 | } |
1661 | ||
afa83e23 MB |
1662 | static void b43_handle_firmware_panic(struct b43_wldev *dev) |
1663 | { | |
1664 | u16 reason; | |
1665 | ||
1666 | /* Read the register that contains the reason code for the panic. */ | |
1667 | reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_FWPANIC_REASON_REG); | |
1668 | b43err(dev->wl, "Whoopsy, firmware panic! Reason: %u\n", reason); | |
1669 | ||
1670 | switch (reason) { | |
1671 | default: | |
1672 | b43dbg(dev->wl, "The panic reason is unknown.\n"); | |
1673 | /* fallthrough */ | |
1674 | case B43_FWPANIC_DIE: | |
1675 | /* Do not restart the controller or firmware. | |
1676 | * The device is nonfunctional from now on. | |
1677 | * Restarting would result in this panic to trigger again, | |
1678 | * so we avoid that recursion. */ | |
1679 | break; | |
1680 | case B43_FWPANIC_RESTART: | |
1681 | b43_controller_restart(dev, "Microcode panic"); | |
1682 | break; | |
1683 | } | |
1684 | } | |
1685 | ||
e4d6b795 MB |
1686 | static void handle_irq_ucode_debug(struct b43_wldev *dev) |
1687 | { | |
e48b0eeb | 1688 | unsigned int i, cnt; |
53c06856 | 1689 | u16 reason, marker_id, marker_line; |
e48b0eeb MB |
1690 | __le16 *buf; |
1691 | ||
1692 | /* The proprietary firmware doesn't have this IRQ. */ | |
1693 | if (!dev->fw.opensource) | |
1694 | return; | |
1695 | ||
afa83e23 MB |
1696 | /* Read the register that contains the reason code for this IRQ. */ |
1697 | reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_DEBUGIRQ_REASON_REG); | |
1698 | ||
e48b0eeb MB |
1699 | switch (reason) { |
1700 | case B43_DEBUGIRQ_PANIC: | |
afa83e23 | 1701 | b43_handle_firmware_panic(dev); |
e48b0eeb MB |
1702 | break; |
1703 | case B43_DEBUGIRQ_DUMP_SHM: | |
1704 | if (!B43_DEBUG) | |
1705 | break; /* Only with driver debugging enabled. */ | |
1706 | buf = kmalloc(4096, GFP_ATOMIC); | |
1707 | if (!buf) { | |
1708 | b43dbg(dev->wl, "SHM-dump: Failed to allocate memory\n"); | |
1709 | goto out; | |
1710 | } | |
1711 | for (i = 0; i < 4096; i += 2) { | |
1712 | u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, i); | |
1713 | buf[i / 2] = cpu_to_le16(tmp); | |
1714 | } | |
1715 | b43info(dev->wl, "Shared memory dump:\n"); | |
1716 | print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, | |
1717 | 16, 2, buf, 4096, 1); | |
1718 | kfree(buf); | |
1719 | break; | |
1720 | case B43_DEBUGIRQ_DUMP_REGS: | |
1721 | if (!B43_DEBUG) | |
1722 | break; /* Only with driver debugging enabled. */ | |
1723 | b43info(dev->wl, "Microcode register dump:\n"); | |
1724 | for (i = 0, cnt = 0; i < 64; i++) { | |
1725 | u16 tmp = b43_shm_read16(dev, B43_SHM_SCRATCH, i); | |
1726 | if (cnt == 0) | |
1727 | printk(KERN_INFO); | |
1728 | printk("r%02u: 0x%04X ", i, tmp); | |
1729 | cnt++; | |
1730 | if (cnt == 6) { | |
1731 | printk("\n"); | |
1732 | cnt = 0; | |
1733 | } | |
1734 | } | |
1735 | printk("\n"); | |
1736 | break; | |
53c06856 MB |
1737 | case B43_DEBUGIRQ_MARKER: |
1738 | if (!B43_DEBUG) | |
1739 | break; /* Only with driver debugging enabled. */ | |
1740 | marker_id = b43_shm_read16(dev, B43_SHM_SCRATCH, | |
1741 | B43_MARKER_ID_REG); | |
1742 | marker_line = b43_shm_read16(dev, B43_SHM_SCRATCH, | |
1743 | B43_MARKER_LINE_REG); | |
1744 | b43info(dev->wl, "The firmware just executed the MARKER(%u) " | |
1745 | "at line number %u\n", | |
1746 | marker_id, marker_line); | |
1747 | break; | |
e48b0eeb MB |
1748 | default: |
1749 | b43dbg(dev->wl, "Debug-IRQ triggered for unknown reason: %u\n", | |
1750 | reason); | |
1751 | } | |
1752 | out: | |
afa83e23 MB |
1753 | /* Acknowledge the debug-IRQ, so the firmware can continue. */ |
1754 | b43_shm_write16(dev, B43_SHM_SCRATCH, | |
1755 | B43_DEBUGIRQ_REASON_REG, B43_DEBUGIRQ_ACK); | |
e4d6b795 MB |
1756 | } |
1757 | ||
36dbd954 | 1758 | static void b43_do_interrupt_thread(struct b43_wldev *dev) |
e4d6b795 MB |
1759 | { |
1760 | u32 reason; | |
1761 | u32 dma_reason[ARRAY_SIZE(dev->dma_reason)]; | |
1762 | u32 merged_dma_reason = 0; | |
21954c36 | 1763 | int i; |
e4d6b795 | 1764 | |
36dbd954 MB |
1765 | if (unlikely(b43_status(dev) != B43_STAT_STARTED)) |
1766 | return; | |
e4d6b795 MB |
1767 | |
1768 | reason = dev->irq_reason; | |
1769 | for (i = 0; i < ARRAY_SIZE(dma_reason); i++) { | |
1770 | dma_reason[i] = dev->dma_reason[i]; | |
1771 | merged_dma_reason |= dma_reason[i]; | |
1772 | } | |
1773 | ||
1774 | if (unlikely(reason & B43_IRQ_MAC_TXERR)) | |
1775 | b43err(dev->wl, "MAC transmission error\n"); | |
1776 | ||
00e0b8cb | 1777 | if (unlikely(reason & B43_IRQ_PHY_TXERR)) { |
e4d6b795 | 1778 | b43err(dev->wl, "PHY transmission error\n"); |
00e0b8cb SB |
1779 | rmb(); |
1780 | if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) { | |
1781 | atomic_set(&dev->phy.txerr_cnt, | |
1782 | B43_PHY_TX_BADNESS_LIMIT); | |
1783 | b43err(dev->wl, "Too many PHY TX errors, " | |
1784 | "restarting the controller\n"); | |
1785 | b43_controller_restart(dev, "PHY TX errors"); | |
1786 | } | |
1787 | } | |
e4d6b795 MB |
1788 | |
1789 | if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK | | |
1790 | B43_DMAIRQ_NONFATALMASK))) { | |
1791 | if (merged_dma_reason & B43_DMAIRQ_FATALMASK) { | |
1792 | b43err(dev->wl, "Fatal DMA error: " | |
1793 | "0x%08X, 0x%08X, 0x%08X, " | |
1794 | "0x%08X, 0x%08X, 0x%08X\n", | |
1795 | dma_reason[0], dma_reason[1], | |
1796 | dma_reason[2], dma_reason[3], | |
1797 | dma_reason[4], dma_reason[5]); | |
214ac9a4 LF |
1798 | b43err(dev->wl, "This device does not support DMA " |
1799 | "on your system. Please use PIO instead.\n"); | |
b02914af LF |
1800 | b43err(dev->wl, "Unload the b43 module and reload " |
1801 | "with 'pio=1'\n"); | |
e4d6b795 MB |
1802 | return; |
1803 | } | |
1804 | if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) { | |
1805 | b43err(dev->wl, "DMA error: " | |
1806 | "0x%08X, 0x%08X, 0x%08X, " | |
1807 | "0x%08X, 0x%08X, 0x%08X\n", | |
1808 | dma_reason[0], dma_reason[1], | |
1809 | dma_reason[2], dma_reason[3], | |
1810 | dma_reason[4], dma_reason[5]); | |
1811 | } | |
1812 | } | |
1813 | ||
1814 | if (unlikely(reason & B43_IRQ_UCODE_DEBUG)) | |
1815 | handle_irq_ucode_debug(dev); | |
1816 | if (reason & B43_IRQ_TBTT_INDI) | |
1817 | handle_irq_tbtt_indication(dev); | |
1818 | if (reason & B43_IRQ_ATIM_END) | |
1819 | handle_irq_atim_end(dev); | |
1820 | if (reason & B43_IRQ_BEACON) | |
1821 | handle_irq_beacon(dev); | |
1822 | if (reason & B43_IRQ_PMQ) | |
1823 | handle_irq_pmq(dev); | |
21954c36 MB |
1824 | if (reason & B43_IRQ_TXFIFO_FLUSH_OK) |
1825 | ;/* TODO */ | |
1826 | if (reason & B43_IRQ_NOISESAMPLE_OK) | |
e4d6b795 MB |
1827 | handle_irq_noise(dev); |
1828 | ||
1829 | /* Check the DMA reason registers for received data. */ | |
5100d5ac MB |
1830 | if (dma_reason[0] & B43_DMAIRQ_RX_DONE) { |
1831 | if (b43_using_pio_transfers(dev)) | |
1832 | b43_pio_rx(dev->pio.rx_queue); | |
1833 | else | |
1834 | b43_dma_rx(dev->dma.rx_ring); | |
1835 | } | |
e4d6b795 MB |
1836 | B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE); |
1837 | B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE); | |
b27faf8e | 1838 | B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE); |
e4d6b795 MB |
1839 | B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE); |
1840 | B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE); | |
1841 | ||
21954c36 | 1842 | if (reason & B43_IRQ_TX_OK) |
e4d6b795 | 1843 | handle_irq_transmit_status(dev); |
e4d6b795 | 1844 | |
36dbd954 | 1845 | /* Re-enable interrupts on the device by restoring the current interrupt mask. */ |
13790728 | 1846 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); |
990b86f4 MB |
1847 | |
1848 | #if B43_DEBUG | |
1849 | if (b43_debug(dev, B43_DBG_VERBOSESTATS)) { | |
1850 | dev->irq_count++; | |
1851 | for (i = 0; i < ARRAY_SIZE(dev->irq_bit_count); i++) { | |
1852 | if (reason & (1 << i)) | |
1853 | dev->irq_bit_count[i]++; | |
1854 | } | |
1855 | } | |
1856 | #endif | |
e4d6b795 MB |
1857 | } |
1858 | ||
36dbd954 MB |
1859 | /* Interrupt thread handler. Handles device interrupts in thread context. */ |
1860 | static irqreturn_t b43_interrupt_thread_handler(int irq, void *dev_id) | |
e4d6b795 | 1861 | { |
36dbd954 | 1862 | struct b43_wldev *dev = dev_id; |
e4d6b795 | 1863 | |
36dbd954 MB |
1864 | mutex_lock(&dev->wl->mutex); |
1865 | b43_do_interrupt_thread(dev); | |
1866 | mmiowb(); | |
1867 | mutex_unlock(&dev->wl->mutex); | |
1868 | ||
1869 | return IRQ_HANDLED; | |
e4d6b795 MB |
1870 | } |
1871 | ||
36dbd954 | 1872 | static irqreturn_t b43_do_interrupt(struct b43_wldev *dev) |
e4d6b795 | 1873 | { |
e4d6b795 MB |
1874 | u32 reason; |
1875 | ||
36dbd954 MB |
1876 | /* This code runs under wl->hardirq_lock, but _only_ on non-SDIO busses. |
1877 | * On SDIO, this runs under wl->mutex. */ | |
e4d6b795 | 1878 | |
e4d6b795 MB |
1879 | reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); |
1880 | if (reason == 0xffffffff) /* shared IRQ */ | |
36dbd954 | 1881 | return IRQ_NONE; |
13790728 | 1882 | reason &= dev->irq_mask; |
e4d6b795 | 1883 | if (!reason) |
36dbd954 | 1884 | return IRQ_HANDLED; |
e4d6b795 MB |
1885 | |
1886 | dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON) | |
1887 | & 0x0001DC00; | |
1888 | dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON) | |
1889 | & 0x0000DC00; | |
1890 | dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON) | |
1891 | & 0x0000DC00; | |
1892 | dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON) | |
1893 | & 0x0001DC00; | |
1894 | dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON) | |
1895 | & 0x0000DC00; | |
13790728 | 1896 | /* Unused ring |
e4d6b795 MB |
1897 | dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON) |
1898 | & 0x0000DC00; | |
13790728 | 1899 | */ |
e4d6b795 | 1900 | |
36dbd954 MB |
1901 | /* ACK the interrupt. */ |
1902 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason); | |
1903 | b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]); | |
1904 | b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]); | |
1905 | b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]); | |
1906 | b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]); | |
1907 | b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]); | |
1908 | /* Unused ring | |
1909 | b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]); | |
1910 | */ | |
1911 | ||
1912 | /* Disable IRQs on the device. The IRQ thread handler will re-enable them. */ | |
13790728 | 1913 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0); |
36dbd954 | 1914 | /* Save the reason bitmasks for the IRQ thread handler. */ |
e4d6b795 | 1915 | dev->irq_reason = reason; |
36dbd954 MB |
1916 | |
1917 | return IRQ_WAKE_THREAD; | |
1918 | } | |
1919 | ||
1920 | /* Interrupt handler top-half. This runs with interrupts disabled. */ | |
1921 | static irqreturn_t b43_interrupt_handler(int irq, void *dev_id) | |
1922 | { | |
1923 | struct b43_wldev *dev = dev_id; | |
1924 | irqreturn_t ret; | |
1925 | ||
1926 | if (unlikely(b43_status(dev) < B43_STAT_STARTED)) | |
1927 | return IRQ_NONE; | |
1928 | ||
1929 | spin_lock(&dev->wl->hardirq_lock); | |
1930 | ret = b43_do_interrupt(dev); | |
e4d6b795 | 1931 | mmiowb(); |
36dbd954 | 1932 | spin_unlock(&dev->wl->hardirq_lock); |
e4d6b795 MB |
1933 | |
1934 | return ret; | |
1935 | } | |
1936 | ||
3dbba8e2 AH |
1937 | /* SDIO interrupt handler. This runs in process context. */ |
1938 | static void b43_sdio_interrupt_handler(struct b43_wldev *dev) | |
1939 | { | |
1940 | struct b43_wl *wl = dev->wl; | |
3dbba8e2 AH |
1941 | irqreturn_t ret; |
1942 | ||
3dbba8e2 | 1943 | mutex_lock(&wl->mutex); |
3dbba8e2 AH |
1944 | |
1945 | ret = b43_do_interrupt(dev); | |
1946 | if (ret == IRQ_WAKE_THREAD) | |
1947 | b43_do_interrupt_thread(dev); | |
1948 | ||
3dbba8e2 AH |
1949 | mutex_unlock(&wl->mutex); |
1950 | } | |
1951 | ||
1a9f5093 | 1952 | void b43_do_release_fw(struct b43_firmware_file *fw) |
61cb5dd6 MB |
1953 | { |
1954 | release_firmware(fw->data); | |
1955 | fw->data = NULL; | |
1956 | fw->filename = NULL; | |
1957 | } | |
1958 | ||
e4d6b795 MB |
1959 | static void b43_release_firmware(struct b43_wldev *dev) |
1960 | { | |
1a9f5093 MB |
1961 | b43_do_release_fw(&dev->fw.ucode); |
1962 | b43_do_release_fw(&dev->fw.pcm); | |
1963 | b43_do_release_fw(&dev->fw.initvals); | |
1964 | b43_do_release_fw(&dev->fw.initvals_band); | |
e4d6b795 MB |
1965 | } |
1966 | ||
eb189d8b | 1967 | static void b43_print_fw_helptext(struct b43_wl *wl, bool error) |
e4d6b795 | 1968 | { |
fc68ed4f HE |
1969 | const char text[] = |
1970 | "You must go to " \ | |
1971 | "http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware " \ | |
1972 | "and download the correct firmware for this driver version. " \ | |
1973 | "Please carefully read all instructions on this website.\n"; | |
eb189d8b | 1974 | |
eb189d8b MB |
1975 | if (error) |
1976 | b43err(wl, text); | |
1977 | else | |
1978 | b43warn(wl, text); | |
e4d6b795 MB |
1979 | } |
1980 | ||
1a9f5093 MB |
1981 | int b43_do_request_fw(struct b43_request_fw_context *ctx, |
1982 | const char *name, | |
1983 | struct b43_firmware_file *fw) | |
e4d6b795 | 1984 | { |
61cb5dd6 | 1985 | const struct firmware *blob; |
e4d6b795 MB |
1986 | struct b43_fw_header *hdr; |
1987 | u32 size; | |
1988 | int err; | |
1989 | ||
61cb5dd6 MB |
1990 | if (!name) { |
1991 | /* Don't fetch anything. Free possibly cached firmware. */ | |
1a9f5093 MB |
1992 | /* FIXME: We should probably keep it anyway, to save some headache |
1993 | * on suspend/resume with multiband devices. */ | |
1994 | b43_do_release_fw(fw); | |
e4d6b795 | 1995 | return 0; |
61cb5dd6 MB |
1996 | } |
1997 | if (fw->filename) { | |
1a9f5093 MB |
1998 | if ((fw->type == ctx->req_type) && |
1999 | (strcmp(fw->filename, name) == 0)) | |
61cb5dd6 MB |
2000 | return 0; /* Already have this fw. */ |
2001 | /* Free the cached firmware first. */ | |
1a9f5093 MB |
2002 | /* FIXME: We should probably do this later after we successfully |
2003 | * got the new fw. This could reduce headache with multiband devices. | |
2004 | * We could also redesign this to cache the firmware for all possible | |
2005 | * bands all the time. */ | |
2006 | b43_do_release_fw(fw); | |
61cb5dd6 | 2007 | } |
e4d6b795 | 2008 | |
1a9f5093 MB |
2009 | switch (ctx->req_type) { |
2010 | case B43_FWTYPE_PROPRIETARY: | |
2011 | snprintf(ctx->fwname, sizeof(ctx->fwname), | |
2012 | "b43%s/%s.fw", | |
2013 | modparam_fwpostfix, name); | |
2014 | break; | |
2015 | case B43_FWTYPE_OPENSOURCE: | |
2016 | snprintf(ctx->fwname, sizeof(ctx->fwname), | |
2017 | "b43-open%s/%s.fw", | |
2018 | modparam_fwpostfix, name); | |
2019 | break; | |
2020 | default: | |
2021 | B43_WARN_ON(1); | |
2022 | return -ENOSYS; | |
2023 | } | |
2024 | err = request_firmware(&blob, ctx->fwname, ctx->dev->dev->dev); | |
68217832 | 2025 | if (err == -ENOENT) { |
1a9f5093 MB |
2026 | snprintf(ctx->errors[ctx->req_type], |
2027 | sizeof(ctx->errors[ctx->req_type]), | |
2028 | "Firmware file \"%s\" not found\n", ctx->fwname); | |
68217832 MB |
2029 | return err; |
2030 | } else if (err) { | |
1a9f5093 MB |
2031 | snprintf(ctx->errors[ctx->req_type], |
2032 | sizeof(ctx->errors[ctx->req_type]), | |
2033 | "Firmware file \"%s\" request failed (err=%d)\n", | |
2034 | ctx->fwname, err); | |
e4d6b795 MB |
2035 | return err; |
2036 | } | |
61cb5dd6 | 2037 | if (blob->size < sizeof(struct b43_fw_header)) |
e4d6b795 | 2038 | goto err_format; |
61cb5dd6 | 2039 | hdr = (struct b43_fw_header *)(blob->data); |
e4d6b795 MB |
2040 | switch (hdr->type) { |
2041 | case B43_FW_TYPE_UCODE: | |
2042 | case B43_FW_TYPE_PCM: | |
2043 | size = be32_to_cpu(hdr->size); | |
61cb5dd6 | 2044 | if (size != blob->size - sizeof(struct b43_fw_header)) |
e4d6b795 MB |
2045 | goto err_format; |
2046 | /* fallthrough */ | |
2047 | case B43_FW_TYPE_IV: | |
2048 | if (hdr->ver != 1) | |
2049 | goto err_format; | |
2050 | break; | |
2051 | default: | |
2052 | goto err_format; | |
2053 | } | |
2054 | ||
61cb5dd6 MB |
2055 | fw->data = blob; |
2056 | fw->filename = name; | |
1a9f5093 | 2057 | fw->type = ctx->req_type; |
61cb5dd6 MB |
2058 | |
2059 | return 0; | |
e4d6b795 MB |
2060 | |
2061 | err_format: | |
1a9f5093 MB |
2062 | snprintf(ctx->errors[ctx->req_type], |
2063 | sizeof(ctx->errors[ctx->req_type]), | |
2064 | "Firmware file \"%s\" format error.\n", ctx->fwname); | |
61cb5dd6 MB |
2065 | release_firmware(blob); |
2066 | ||
e4d6b795 MB |
2067 | return -EPROTO; |
2068 | } | |
2069 | ||
1a9f5093 | 2070 | static int b43_try_request_fw(struct b43_request_fw_context *ctx) |
e4d6b795 | 2071 | { |
1a9f5093 MB |
2072 | struct b43_wldev *dev = ctx->dev; |
2073 | struct b43_firmware *fw = &ctx->dev->fw; | |
2074 | const u8 rev = ctx->dev->dev->id.revision; | |
e4d6b795 MB |
2075 | const char *filename; |
2076 | u32 tmshigh; | |
2077 | int err; | |
2078 | ||
61cb5dd6 | 2079 | /* Get microcode */ |
e4d6b795 | 2080 | tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH); |
61cb5dd6 MB |
2081 | if ((rev >= 5) && (rev <= 10)) |
2082 | filename = "ucode5"; | |
2083 | else if ((rev >= 11) && (rev <= 12)) | |
2084 | filename = "ucode11"; | |
759b973b | 2085 | else if (rev == 13) |
61cb5dd6 | 2086 | filename = "ucode13"; |
759b973b GS |
2087 | else if (rev == 14) |
2088 | filename = "ucode14"; | |
2089 | else if (rev >= 15) | |
2090 | filename = "ucode15"; | |
61cb5dd6 MB |
2091 | else |
2092 | goto err_no_ucode; | |
1a9f5093 | 2093 | err = b43_do_request_fw(ctx, filename, &fw->ucode); |
61cb5dd6 MB |
2094 | if (err) |
2095 | goto err_load; | |
2096 | ||
2097 | /* Get PCM code */ | |
2098 | if ((rev >= 5) && (rev <= 10)) | |
2099 | filename = "pcm5"; | |
2100 | else if (rev >= 11) | |
2101 | filename = NULL; | |
2102 | else | |
2103 | goto err_no_pcm; | |
68217832 | 2104 | fw->pcm_request_failed = 0; |
1a9f5093 | 2105 | err = b43_do_request_fw(ctx, filename, &fw->pcm); |
68217832 MB |
2106 | if (err == -ENOENT) { |
2107 | /* We did not find a PCM file? Not fatal, but | |
2108 | * core rev <= 10 must do without hwcrypto then. */ | |
2109 | fw->pcm_request_failed = 1; | |
2110 | } else if (err) | |
61cb5dd6 MB |
2111 | goto err_load; |
2112 | ||
2113 | /* Get initvals */ | |
2114 | switch (dev->phy.type) { | |
2115 | case B43_PHYTYPE_A: | |
2116 | if ((rev >= 5) && (rev <= 10)) { | |
2117 | if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY) | |
2118 | filename = "a0g1initvals5"; | |
2119 | else | |
2120 | filename = "a0g0initvals5"; | |
2121 | } else | |
2122 | goto err_no_initvals; | |
2123 | break; | |
2124 | case B43_PHYTYPE_G: | |
e4d6b795 | 2125 | if ((rev >= 5) && (rev <= 10)) |
61cb5dd6 | 2126 | filename = "b0g0initvals5"; |
e4d6b795 | 2127 | else if (rev >= 13) |
e9304882 | 2128 | filename = "b0g0initvals13"; |
e4d6b795 | 2129 | else |
61cb5dd6 MB |
2130 | goto err_no_initvals; |
2131 | break; | |
2132 | case B43_PHYTYPE_N: | |
2133 | if ((rev >= 11) && (rev <= 12)) | |
2134 | filename = "n0initvals11"; | |
2135 | else | |
2136 | goto err_no_initvals; | |
2137 | break; | |
759b973b GS |
2138 | case B43_PHYTYPE_LP: |
2139 | if (rev == 13) | |
2140 | filename = "lp0initvals13"; | |
2141 | else if (rev == 14) | |
2142 | filename = "lp0initvals14"; | |
2143 | else if (rev >= 15) | |
2144 | filename = "lp0initvals15"; | |
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); |
61cb5dd6 MB |
2152 | if (err) |
2153 | goto err_load; | |
2154 | ||
2155 | /* Get bandswitch initvals */ | |
2156 | switch (dev->phy.type) { | |
2157 | case B43_PHYTYPE_A: | |
2158 | if ((rev >= 5) && (rev <= 10)) { | |
2159 | if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY) | |
2160 | filename = "a0g1bsinitvals5"; | |
2161 | else | |
2162 | filename = "a0g0bsinitvals5"; | |
2163 | } else if (rev >= 11) | |
2164 | filename = NULL; | |
2165 | else | |
2166 | goto err_no_initvals; | |
2167 | break; | |
2168 | case B43_PHYTYPE_G: | |
e4d6b795 | 2169 | if ((rev >= 5) && (rev <= 10)) |
61cb5dd6 | 2170 | filename = "b0g0bsinitvals5"; |
e4d6b795 MB |
2171 | else if (rev >= 11) |
2172 | filename = NULL; | |
2173 | else | |
e4d6b795 | 2174 | goto err_no_initvals; |
61cb5dd6 MB |
2175 | break; |
2176 | case B43_PHYTYPE_N: | |
2177 | if ((rev >= 11) && (rev <= 12)) | |
2178 | filename = "n0bsinitvals11"; | |
2179 | else | |
e4d6b795 | 2180 | goto err_no_initvals; |
61cb5dd6 | 2181 | break; |
759b973b GS |
2182 | case B43_PHYTYPE_LP: |
2183 | if (rev == 13) | |
2184 | filename = "lp0bsinitvals13"; | |
2185 | else if (rev == 14) | |
2186 | filename = "lp0bsinitvals14"; | |
2187 | else if (rev >= 15) | |
2188 | filename = "lp0bsinitvals15"; | |
2189 | else | |
2190 | goto err_no_initvals; | |
2191 | break; | |
61cb5dd6 MB |
2192 | default: |
2193 | goto err_no_initvals; | |
e4d6b795 | 2194 | } |
1a9f5093 | 2195 | err = b43_do_request_fw(ctx, filename, &fw->initvals_band); |
61cb5dd6 MB |
2196 | if (err) |
2197 | goto err_load; | |
e4d6b795 MB |
2198 | |
2199 | return 0; | |
2200 | ||
e4d6b795 | 2201 | err_no_ucode: |
1a9f5093 MB |
2202 | err = ctx->fatal_failure = -EOPNOTSUPP; |
2203 | b43err(dev->wl, "The driver does not know which firmware (ucode) " | |
2204 | "is required for your device (wl-core rev %u)\n", rev); | |
e4d6b795 MB |
2205 | goto error; |
2206 | ||
2207 | err_no_pcm: | |
1a9f5093 MB |
2208 | err = ctx->fatal_failure = -EOPNOTSUPP; |
2209 | b43err(dev->wl, "The driver does not know which firmware (PCM) " | |
2210 | "is required for your device (wl-core rev %u)\n", rev); | |
e4d6b795 MB |
2211 | goto error; |
2212 | ||
2213 | err_no_initvals: | |
1a9f5093 MB |
2214 | err = ctx->fatal_failure = -EOPNOTSUPP; |
2215 | b43err(dev->wl, "The driver does not know which firmware (initvals) " | |
2216 | "is required for your device (wl-core rev %u)\n", rev); | |
2217 | goto error; | |
2218 | ||
2219 | err_load: | |
2220 | /* We failed to load this firmware image. The error message | |
2221 | * already is in ctx->errors. Return and let our caller decide | |
2222 | * what to do. */ | |
e4d6b795 MB |
2223 | goto error; |
2224 | ||
2225 | error: | |
2226 | b43_release_firmware(dev); | |
2227 | return err; | |
2228 | } | |
2229 | ||
1a9f5093 MB |
2230 | static int b43_request_firmware(struct b43_wldev *dev) |
2231 | { | |
2232 | struct b43_request_fw_context *ctx; | |
2233 | unsigned int i; | |
2234 | int err; | |
2235 | const char *errmsg; | |
2236 | ||
2237 | ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); | |
2238 | if (!ctx) | |
2239 | return -ENOMEM; | |
2240 | ctx->dev = dev; | |
2241 | ||
2242 | ctx->req_type = B43_FWTYPE_PROPRIETARY; | |
2243 | err = b43_try_request_fw(ctx); | |
2244 | if (!err) | |
2245 | goto out; /* Successfully loaded it. */ | |
2246 | err = ctx->fatal_failure; | |
2247 | if (err) | |
2248 | goto out; | |
2249 | ||
2250 | ctx->req_type = B43_FWTYPE_OPENSOURCE; | |
2251 | err = b43_try_request_fw(ctx); | |
2252 | if (!err) | |
2253 | goto out; /* Successfully loaded it. */ | |
2254 | err = ctx->fatal_failure; | |
2255 | if (err) | |
2256 | goto out; | |
2257 | ||
2258 | /* Could not find a usable firmware. Print the errors. */ | |
2259 | for (i = 0; i < B43_NR_FWTYPES; i++) { | |
2260 | errmsg = ctx->errors[i]; | |
2261 | if (strlen(errmsg)) | |
2262 | b43err(dev->wl, errmsg); | |
2263 | } | |
2264 | b43_print_fw_helptext(dev->wl, 1); | |
2265 | err = -ENOENT; | |
2266 | ||
2267 | out: | |
2268 | kfree(ctx); | |
2269 | return err; | |
2270 | } | |
2271 | ||
e4d6b795 MB |
2272 | static int b43_upload_microcode(struct b43_wldev *dev) |
2273 | { | |
2274 | const size_t hdr_len = sizeof(struct b43_fw_header); | |
2275 | const __be32 *data; | |
2276 | unsigned int i, len; | |
2277 | u16 fwrev, fwpatch, fwdate, fwtime; | |
1f7d87b0 | 2278 | u32 tmp, macctl; |
e4d6b795 MB |
2279 | int err = 0; |
2280 | ||
1f7d87b0 MB |
2281 | /* Jump the microcode PSM to offset 0 */ |
2282 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
2283 | B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN); | |
2284 | macctl |= B43_MACCTL_PSM_JMP0; | |
2285 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
2286 | /* Zero out all microcode PSM registers and shared memory. */ | |
2287 | for (i = 0; i < 64; i++) | |
2288 | b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0); | |
2289 | for (i = 0; i < 4096; i += 2) | |
2290 | b43_shm_write16(dev, B43_SHM_SHARED, i, 0); | |
2291 | ||
e4d6b795 | 2292 | /* Upload Microcode. */ |
61cb5dd6 MB |
2293 | data = (__be32 *) (dev->fw.ucode.data->data + hdr_len); |
2294 | len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32); | |
e4d6b795 MB |
2295 | b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000); |
2296 | for (i = 0; i < len; i++) { | |
2297 | b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i])); | |
2298 | udelay(10); | |
2299 | } | |
2300 | ||
61cb5dd6 | 2301 | if (dev->fw.pcm.data) { |
e4d6b795 | 2302 | /* Upload PCM data. */ |
61cb5dd6 MB |
2303 | data = (__be32 *) (dev->fw.pcm.data->data + hdr_len); |
2304 | len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32); | |
e4d6b795 MB |
2305 | b43_shm_control_word(dev, B43_SHM_HW, 0x01EA); |
2306 | b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000); | |
2307 | /* No need for autoinc bit in SHM_HW */ | |
2308 | b43_shm_control_word(dev, B43_SHM_HW, 0x01EB); | |
2309 | for (i = 0; i < len; i++) { | |
2310 | b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i])); | |
2311 | udelay(10); | |
2312 | } | |
2313 | } | |
2314 | ||
2315 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL); | |
1f7d87b0 MB |
2316 | |
2317 | /* Start the microcode PSM */ | |
2318 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
2319 | macctl &= ~B43_MACCTL_PSM_JMP0; | |
2320 | macctl |= B43_MACCTL_PSM_RUN; | |
2321 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
e4d6b795 MB |
2322 | |
2323 | /* Wait for the microcode to load and respond */ | |
2324 | i = 0; | |
2325 | while (1) { | |
2326 | tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); | |
2327 | if (tmp == B43_IRQ_MAC_SUSPENDED) | |
2328 | break; | |
2329 | i++; | |
1f7d87b0 | 2330 | if (i >= 20) { |
e4d6b795 | 2331 | b43err(dev->wl, "Microcode not responding\n"); |
eb189d8b | 2332 | b43_print_fw_helptext(dev->wl, 1); |
e4d6b795 | 2333 | err = -ENODEV; |
1f7d87b0 MB |
2334 | goto error; |
2335 | } | |
e175e996 | 2336 | msleep(50); |
e4d6b795 MB |
2337 | } |
2338 | b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */ | |
2339 | ||
2340 | /* Get and check the revisions. */ | |
2341 | fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV); | |
2342 | fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH); | |
2343 | fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE); | |
2344 | fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME); | |
2345 | ||
2346 | if (fwrev <= 0x128) { | |
2347 | b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from " | |
2348 | "binary drivers older than version 4.x is unsupported. " | |
2349 | "You must upgrade your firmware files.\n"); | |
eb189d8b | 2350 | b43_print_fw_helptext(dev->wl, 1); |
e4d6b795 | 2351 | err = -EOPNOTSUPP; |
1f7d87b0 | 2352 | goto error; |
e4d6b795 | 2353 | } |
e4d6b795 MB |
2354 | dev->fw.rev = fwrev; |
2355 | dev->fw.patch = fwpatch; | |
e48b0eeb MB |
2356 | dev->fw.opensource = (fwdate == 0xFFFF); |
2357 | ||
403a3a13 MB |
2358 | /* Default to use-all-queues. */ |
2359 | dev->wl->hw->queues = dev->wl->mac80211_initially_registered_queues; | |
2360 | dev->qos_enabled = !!modparam_qos; | |
2361 | /* Default to firmware/hardware crypto acceleration. */ | |
2362 | dev->hwcrypto_enabled = 1; | |
2363 | ||
e48b0eeb | 2364 | if (dev->fw.opensource) { |
403a3a13 MB |
2365 | u16 fwcapa; |
2366 | ||
e48b0eeb MB |
2367 | /* Patchlevel info is encoded in the "time" field. */ |
2368 | dev->fw.patch = fwtime; | |
403a3a13 MB |
2369 | b43info(dev->wl, "Loading OpenSource firmware version %u.%u\n", |
2370 | dev->fw.rev, dev->fw.patch); | |
2371 | ||
2372 | fwcapa = b43_fwcapa_read(dev); | |
2373 | if (!(fwcapa & B43_FWCAPA_HWCRYPTO) || dev->fw.pcm_request_failed) { | |
2374 | b43info(dev->wl, "Hardware crypto acceleration not supported by firmware\n"); | |
2375 | /* Disable hardware crypto and fall back to software crypto. */ | |
2376 | dev->hwcrypto_enabled = 0; | |
2377 | } | |
2378 | if (!(fwcapa & B43_FWCAPA_QOS)) { | |
2379 | b43info(dev->wl, "QoS not supported by firmware\n"); | |
2380 | /* Disable QoS. Tweak hw->queues to 1. It will be restored before | |
2381 | * ieee80211_unregister to make sure the networking core can | |
2382 | * properly free possible resources. */ | |
2383 | dev->wl->hw->queues = 1; | |
2384 | dev->qos_enabled = 0; | |
2385 | } | |
e48b0eeb MB |
2386 | } else { |
2387 | b43info(dev->wl, "Loading firmware version %u.%u " | |
2388 | "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", | |
2389 | fwrev, fwpatch, | |
2390 | (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF, | |
2391 | (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F); | |
68217832 MB |
2392 | if (dev->fw.pcm_request_failed) { |
2393 | b43warn(dev->wl, "No \"pcm5.fw\" firmware file found. " | |
2394 | "Hardware accelerated cryptography is disabled.\n"); | |
2395 | b43_print_fw_helptext(dev->wl, 0); | |
2396 | } | |
e48b0eeb | 2397 | } |
e4d6b795 | 2398 | |
eb189d8b | 2399 | if (b43_is_old_txhdr_format(dev)) { |
c557289c MB |
2400 | /* We're over the deadline, but we keep support for old fw |
2401 | * until it turns out to be in major conflict with something new. */ | |
eb189d8b | 2402 | b43warn(dev->wl, "You are using an old firmware image. " |
c557289c MB |
2403 | "Support for old firmware will be removed soon " |
2404 | "(official deadline was July 2008).\n"); | |
eb189d8b MB |
2405 | b43_print_fw_helptext(dev->wl, 0); |
2406 | } | |
2407 | ||
1f7d87b0 MB |
2408 | return 0; |
2409 | ||
2410 | error: | |
2411 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
2412 | macctl &= ~B43_MACCTL_PSM_RUN; | |
2413 | macctl |= B43_MACCTL_PSM_JMP0; | |
2414 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
2415 | ||
e4d6b795 MB |
2416 | return err; |
2417 | } | |
2418 | ||
2419 | static int b43_write_initvals(struct b43_wldev *dev, | |
2420 | const struct b43_iv *ivals, | |
2421 | size_t count, | |
2422 | size_t array_size) | |
2423 | { | |
2424 | const struct b43_iv *iv; | |
2425 | u16 offset; | |
2426 | size_t i; | |
2427 | bool bit32; | |
2428 | ||
2429 | BUILD_BUG_ON(sizeof(struct b43_iv) != 6); | |
2430 | iv = ivals; | |
2431 | for (i = 0; i < count; i++) { | |
2432 | if (array_size < sizeof(iv->offset_size)) | |
2433 | goto err_format; | |
2434 | array_size -= sizeof(iv->offset_size); | |
2435 | offset = be16_to_cpu(iv->offset_size); | |
2436 | bit32 = !!(offset & B43_IV_32BIT); | |
2437 | offset &= B43_IV_OFFSET_MASK; | |
2438 | if (offset >= 0x1000) | |
2439 | goto err_format; | |
2440 | if (bit32) { | |
2441 | u32 value; | |
2442 | ||
2443 | if (array_size < sizeof(iv->data.d32)) | |
2444 | goto err_format; | |
2445 | array_size -= sizeof(iv->data.d32); | |
2446 | ||
533dd1b0 | 2447 | value = get_unaligned_be32(&iv->data.d32); |
e4d6b795 MB |
2448 | b43_write32(dev, offset, value); |
2449 | ||
2450 | iv = (const struct b43_iv *)((const uint8_t *)iv + | |
2451 | sizeof(__be16) + | |
2452 | sizeof(__be32)); | |
2453 | } else { | |
2454 | u16 value; | |
2455 | ||
2456 | if (array_size < sizeof(iv->data.d16)) | |
2457 | goto err_format; | |
2458 | array_size -= sizeof(iv->data.d16); | |
2459 | ||
2460 | value = be16_to_cpu(iv->data.d16); | |
2461 | b43_write16(dev, offset, value); | |
2462 | ||
2463 | iv = (const struct b43_iv *)((const uint8_t *)iv + | |
2464 | sizeof(__be16) + | |
2465 | sizeof(__be16)); | |
2466 | } | |
2467 | } | |
2468 | if (array_size) | |
2469 | goto err_format; | |
2470 | ||
2471 | return 0; | |
2472 | ||
2473 | err_format: | |
2474 | b43err(dev->wl, "Initial Values Firmware file-format error.\n"); | |
eb189d8b | 2475 | b43_print_fw_helptext(dev->wl, 1); |
e4d6b795 MB |
2476 | |
2477 | return -EPROTO; | |
2478 | } | |
2479 | ||
2480 | static int b43_upload_initvals(struct b43_wldev *dev) | |
2481 | { | |
2482 | const size_t hdr_len = sizeof(struct b43_fw_header); | |
2483 | const struct b43_fw_header *hdr; | |
2484 | struct b43_firmware *fw = &dev->fw; | |
2485 | const struct b43_iv *ivals; | |
2486 | size_t count; | |
2487 | int err; | |
2488 | ||
61cb5dd6 MB |
2489 | hdr = (const struct b43_fw_header *)(fw->initvals.data->data); |
2490 | ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len); | |
e4d6b795 MB |
2491 | count = be32_to_cpu(hdr->size); |
2492 | err = b43_write_initvals(dev, ivals, count, | |
61cb5dd6 | 2493 | fw->initvals.data->size - hdr_len); |
e4d6b795 MB |
2494 | if (err) |
2495 | goto out; | |
61cb5dd6 MB |
2496 | if (fw->initvals_band.data) { |
2497 | hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data); | |
2498 | ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len); | |
e4d6b795 MB |
2499 | count = be32_to_cpu(hdr->size); |
2500 | err = b43_write_initvals(dev, ivals, count, | |
61cb5dd6 | 2501 | fw->initvals_band.data->size - hdr_len); |
e4d6b795 MB |
2502 | if (err) |
2503 | goto out; | |
2504 | } | |
2505 | out: | |
2506 | ||
2507 | return err; | |
2508 | } | |
2509 | ||
2510 | /* Initialize the GPIOs | |
2511 | * http://bcm-specs.sipsolutions.net/GPIO | |
2512 | */ | |
2513 | static int b43_gpio_init(struct b43_wldev *dev) | |
2514 | { | |
2515 | struct ssb_bus *bus = dev->dev->bus; | |
2516 | struct ssb_device *gpiodev, *pcidev = NULL; | |
2517 | u32 mask, set; | |
2518 | ||
2519 | b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) | |
2520 | & ~B43_MACCTL_GPOUTSMSK); | |
2521 | ||
e4d6b795 MB |
2522 | b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK) |
2523 | | 0x000F); | |
2524 | ||
2525 | mask = 0x0000001F; | |
2526 | set = 0x0000000F; | |
2527 | if (dev->dev->bus->chip_id == 0x4301) { | |
2528 | mask |= 0x0060; | |
2529 | set |= 0x0060; | |
2530 | } | |
2531 | if (0 /* FIXME: conditional unknown */ ) { | |
2532 | b43_write16(dev, B43_MMIO_GPIO_MASK, | |
2533 | b43_read16(dev, B43_MMIO_GPIO_MASK) | |
2534 | | 0x0100); | |
2535 | mask |= 0x0180; | |
2536 | set |= 0x0180; | |
2537 | } | |
95de2841 | 2538 | if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL) { |
e4d6b795 MB |
2539 | b43_write16(dev, B43_MMIO_GPIO_MASK, |
2540 | b43_read16(dev, B43_MMIO_GPIO_MASK) | |
2541 | | 0x0200); | |
2542 | mask |= 0x0200; | |
2543 | set |= 0x0200; | |
2544 | } | |
2545 | if (dev->dev->id.revision >= 2) | |
2546 | mask |= 0x0010; /* FIXME: This is redundant. */ | |
2547 | ||
2548 | #ifdef CONFIG_SSB_DRIVER_PCICORE | |
2549 | pcidev = bus->pcicore.dev; | |
2550 | #endif | |
2551 | gpiodev = bus->chipco.dev ? : pcidev; | |
2552 | if (!gpiodev) | |
2553 | return 0; | |
2554 | ssb_write32(gpiodev, B43_GPIO_CONTROL, | |
2555 | (ssb_read32(gpiodev, B43_GPIO_CONTROL) | |
2556 | & mask) | set); | |
2557 | ||
2558 | return 0; | |
2559 | } | |
2560 | ||
2561 | /* Turn off all GPIO stuff. Call this on module unload, for example. */ | |
2562 | static void b43_gpio_cleanup(struct b43_wldev *dev) | |
2563 | { | |
2564 | struct ssb_bus *bus = dev->dev->bus; | |
2565 | struct ssb_device *gpiodev, *pcidev = NULL; | |
2566 | ||
2567 | #ifdef CONFIG_SSB_DRIVER_PCICORE | |
2568 | pcidev = bus->pcicore.dev; | |
2569 | #endif | |
2570 | gpiodev = bus->chipco.dev ? : pcidev; | |
2571 | if (!gpiodev) | |
2572 | return; | |
2573 | ssb_write32(gpiodev, B43_GPIO_CONTROL, 0); | |
2574 | } | |
2575 | ||
2576 | /* http://bcm-specs.sipsolutions.net/EnableMac */ | |
f5eda47f | 2577 | void b43_mac_enable(struct b43_wldev *dev) |
e4d6b795 | 2578 | { |
923fd703 MB |
2579 | if (b43_debug(dev, B43_DBG_FIRMWARE)) { |
2580 | u16 fwstate; | |
2581 | ||
2582 | fwstate = b43_shm_read16(dev, B43_SHM_SHARED, | |
2583 | B43_SHM_SH_UCODESTAT); | |
2584 | if ((fwstate != B43_SHM_SH_UCODESTAT_SUSP) && | |
2585 | (fwstate != B43_SHM_SH_UCODESTAT_SLEEP)) { | |
2586 | b43err(dev->wl, "b43_mac_enable(): The firmware " | |
2587 | "should be suspended, but current state is %u\n", | |
2588 | fwstate); | |
2589 | } | |
2590 | } | |
2591 | ||
e4d6b795 MB |
2592 | dev->mac_suspended--; |
2593 | B43_WARN_ON(dev->mac_suspended < 0); | |
2594 | if (dev->mac_suspended == 0) { | |
2595 | b43_write32(dev, B43_MMIO_MACCTL, | |
2596 | b43_read32(dev, B43_MMIO_MACCTL) | |
2597 | | B43_MACCTL_ENABLED); | |
2598 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, | |
2599 | B43_IRQ_MAC_SUSPENDED); | |
2600 | /* Commit writes */ | |
2601 | b43_read32(dev, B43_MMIO_MACCTL); | |
2602 | b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); | |
2603 | b43_power_saving_ctl_bits(dev, 0); | |
2604 | } | |
2605 | } | |
2606 | ||
2607 | /* http://bcm-specs.sipsolutions.net/SuspendMAC */ | |
f5eda47f | 2608 | void b43_mac_suspend(struct b43_wldev *dev) |
e4d6b795 MB |
2609 | { |
2610 | int i; | |
2611 | u32 tmp; | |
2612 | ||
05b64b36 | 2613 | might_sleep(); |
e4d6b795 | 2614 | B43_WARN_ON(dev->mac_suspended < 0); |
05b64b36 | 2615 | |
e4d6b795 MB |
2616 | if (dev->mac_suspended == 0) { |
2617 | b43_power_saving_ctl_bits(dev, B43_PS_AWAKE); | |
2618 | b43_write32(dev, B43_MMIO_MACCTL, | |
2619 | b43_read32(dev, B43_MMIO_MACCTL) | |
2620 | & ~B43_MACCTL_ENABLED); | |
2621 | /* force pci to flush the write */ | |
2622 | b43_read32(dev, B43_MMIO_MACCTL); | |
ba380013 MB |
2623 | for (i = 35; i; i--) { |
2624 | tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); | |
2625 | if (tmp & B43_IRQ_MAC_SUSPENDED) | |
2626 | goto out; | |
2627 | udelay(10); | |
2628 | } | |
2629 | /* Hm, it seems this will take some time. Use msleep(). */ | |
05b64b36 | 2630 | for (i = 40; i; i--) { |
e4d6b795 MB |
2631 | tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); |
2632 | if (tmp & B43_IRQ_MAC_SUSPENDED) | |
2633 | goto out; | |
05b64b36 | 2634 | msleep(1); |
e4d6b795 MB |
2635 | } |
2636 | b43err(dev->wl, "MAC suspend failed\n"); | |
2637 | } | |
05b64b36 | 2638 | out: |
e4d6b795 MB |
2639 | dev->mac_suspended++; |
2640 | } | |
2641 | ||
2642 | static void b43_adjust_opmode(struct b43_wldev *dev) | |
2643 | { | |
2644 | struct b43_wl *wl = dev->wl; | |
2645 | u32 ctl; | |
2646 | u16 cfp_pretbtt; | |
2647 | ||
2648 | ctl = b43_read32(dev, B43_MMIO_MACCTL); | |
2649 | /* Reset status to STA infrastructure mode. */ | |
2650 | ctl &= ~B43_MACCTL_AP; | |
2651 | ctl &= ~B43_MACCTL_KEEP_CTL; | |
2652 | ctl &= ~B43_MACCTL_KEEP_BADPLCP; | |
2653 | ctl &= ~B43_MACCTL_KEEP_BAD; | |
2654 | ctl &= ~B43_MACCTL_PROMISC; | |
4150c572 | 2655 | ctl &= ~B43_MACCTL_BEACPROMISC; |
e4d6b795 MB |
2656 | ctl |= B43_MACCTL_INFRA; |
2657 | ||
05c914fe JB |
2658 | if (b43_is_mode(wl, NL80211_IFTYPE_AP) || |
2659 | b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT)) | |
4150c572 | 2660 | ctl |= B43_MACCTL_AP; |
05c914fe | 2661 | else if (b43_is_mode(wl, NL80211_IFTYPE_ADHOC)) |
4150c572 JB |
2662 | ctl &= ~B43_MACCTL_INFRA; |
2663 | ||
2664 | if (wl->filter_flags & FIF_CONTROL) | |
e4d6b795 | 2665 | ctl |= B43_MACCTL_KEEP_CTL; |
4150c572 JB |
2666 | if (wl->filter_flags & FIF_FCSFAIL) |
2667 | ctl |= B43_MACCTL_KEEP_BAD; | |
2668 | if (wl->filter_flags & FIF_PLCPFAIL) | |
2669 | ctl |= B43_MACCTL_KEEP_BADPLCP; | |
2670 | if (wl->filter_flags & FIF_PROMISC_IN_BSS) | |
e4d6b795 | 2671 | ctl |= B43_MACCTL_PROMISC; |
4150c572 JB |
2672 | if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC) |
2673 | ctl |= B43_MACCTL_BEACPROMISC; | |
2674 | ||
e4d6b795 MB |
2675 | /* Workaround: On old hardware the HW-MAC-address-filter |
2676 | * doesn't work properly, so always run promisc in filter | |
2677 | * it in software. */ | |
2678 | if (dev->dev->id.revision <= 4) | |
2679 | ctl |= B43_MACCTL_PROMISC; | |
2680 | ||
2681 | b43_write32(dev, B43_MMIO_MACCTL, ctl); | |
2682 | ||
2683 | cfp_pretbtt = 2; | |
2684 | if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) { | |
2685 | if (dev->dev->bus->chip_id == 0x4306 && | |
2686 | dev->dev->bus->chip_rev == 3) | |
2687 | cfp_pretbtt = 100; | |
2688 | else | |
2689 | cfp_pretbtt = 50; | |
2690 | } | |
2691 | b43_write16(dev, 0x612, cfp_pretbtt); | |
09ebe2f9 MB |
2692 | |
2693 | /* FIXME: We don't currently implement the PMQ mechanism, | |
2694 | * so always disable it. If we want to implement PMQ, | |
2695 | * we need to enable it here (clear DISCPMQ) in AP mode. | |
2696 | */ | |
2697 | if (0 /* ctl & B43_MACCTL_AP */) { | |
2698 | b43_write32(dev, B43_MMIO_MACCTL, | |
2699 | b43_read32(dev, B43_MMIO_MACCTL) | |
2700 | & ~B43_MACCTL_DISCPMQ); | |
2701 | } else { | |
2702 | b43_write32(dev, B43_MMIO_MACCTL, | |
2703 | b43_read32(dev, B43_MMIO_MACCTL) | |
2704 | | B43_MACCTL_DISCPMQ); | |
2705 | } | |
e4d6b795 MB |
2706 | } |
2707 | ||
2708 | static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm) | |
2709 | { | |
2710 | u16 offset; | |
2711 | ||
2712 | if (is_ofdm) { | |
2713 | offset = 0x480; | |
2714 | offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2; | |
2715 | } else { | |
2716 | offset = 0x4C0; | |
2717 | offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2; | |
2718 | } | |
2719 | b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20, | |
2720 | b43_shm_read16(dev, B43_SHM_SHARED, offset)); | |
2721 | } | |
2722 | ||
2723 | static void b43_rate_memory_init(struct b43_wldev *dev) | |
2724 | { | |
2725 | switch (dev->phy.type) { | |
2726 | case B43_PHYTYPE_A: | |
2727 | case B43_PHYTYPE_G: | |
53a6e234 | 2728 | case B43_PHYTYPE_N: |
9d86a2d5 | 2729 | case B43_PHYTYPE_LP: |
e4d6b795 MB |
2730 | b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1); |
2731 | b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1); | |
2732 | b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1); | |
2733 | b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1); | |
2734 | b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1); | |
2735 | b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1); | |
2736 | b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1); | |
2737 | if (dev->phy.type == B43_PHYTYPE_A) | |
2738 | break; | |
2739 | /* fallthrough */ | |
2740 | case B43_PHYTYPE_B: | |
2741 | b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0); | |
2742 | b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0); | |
2743 | b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0); | |
2744 | b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0); | |
2745 | break; | |
2746 | default: | |
2747 | B43_WARN_ON(1); | |
2748 | } | |
2749 | } | |
2750 | ||
5042c507 MB |
2751 | /* Set the default values for the PHY TX Control Words. */ |
2752 | static void b43_set_phytxctl_defaults(struct b43_wldev *dev) | |
2753 | { | |
2754 | u16 ctl = 0; | |
2755 | ||
2756 | ctl |= B43_TXH_PHY_ENC_CCK; | |
2757 | ctl |= B43_TXH_PHY_ANT01AUTO; | |
2758 | ctl |= B43_TXH_PHY_TXPWR; | |
2759 | ||
2760 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl); | |
2761 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, ctl); | |
2762 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, ctl); | |
2763 | } | |
2764 | ||
e4d6b795 MB |
2765 | /* Set the TX-Antenna for management frames sent by firmware. */ |
2766 | static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna) | |
2767 | { | |
5042c507 | 2768 | u16 ant; |
e4d6b795 MB |
2769 | u16 tmp; |
2770 | ||
5042c507 | 2771 | ant = b43_antenna_to_phyctl(antenna); |
e4d6b795 | 2772 | |
e4d6b795 MB |
2773 | /* For ACK/CTS */ |
2774 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL); | |
eb189d8b | 2775 | tmp = (tmp & ~B43_TXH_PHY_ANT) | ant; |
e4d6b795 MB |
2776 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp); |
2777 | /* For Probe Resposes */ | |
2778 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL); | |
eb189d8b | 2779 | tmp = (tmp & ~B43_TXH_PHY_ANT) | ant; |
e4d6b795 MB |
2780 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp); |
2781 | } | |
2782 | ||
2783 | /* This is the opposite of b43_chip_init() */ | |
2784 | static void b43_chip_exit(struct b43_wldev *dev) | |
2785 | { | |
fb11137a | 2786 | b43_phy_exit(dev); |
e4d6b795 MB |
2787 | b43_gpio_cleanup(dev); |
2788 | /* firmware is released later */ | |
2789 | } | |
2790 | ||
2791 | /* Initialize the chip | |
2792 | * http://bcm-specs.sipsolutions.net/ChipInit | |
2793 | */ | |
2794 | static int b43_chip_init(struct b43_wldev *dev) | |
2795 | { | |
2796 | struct b43_phy *phy = &dev->phy; | |
ef1a628d | 2797 | int err; |
1f7d87b0 | 2798 | u32 value32, macctl; |
e4d6b795 MB |
2799 | u16 value16; |
2800 | ||
1f7d87b0 MB |
2801 | /* Initialize the MAC control */ |
2802 | macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED; | |
2803 | if (dev->phy.gmode) | |
2804 | macctl |= B43_MACCTL_GMODE; | |
2805 | macctl |= B43_MACCTL_INFRA; | |
2806 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
e4d6b795 MB |
2807 | |
2808 | err = b43_request_firmware(dev); | |
2809 | if (err) | |
2810 | goto out; | |
2811 | err = b43_upload_microcode(dev); | |
2812 | if (err) | |
2813 | goto out; /* firmware is released later */ | |
2814 | ||
2815 | err = b43_gpio_init(dev); | |
2816 | if (err) | |
2817 | goto out; /* firmware is released later */ | |
21954c36 | 2818 | |
e4d6b795 MB |
2819 | err = b43_upload_initvals(dev); |
2820 | if (err) | |
1a8d1227 | 2821 | goto err_gpio_clean; |
e4d6b795 | 2822 | |
0b7dcd96 MB |
2823 | /* Turn the Analog on and initialize the PHY. */ |
2824 | phy->ops->switch_analog(dev, 1); | |
e4d6b795 MB |
2825 | err = b43_phy_init(dev); |
2826 | if (err) | |
ef1a628d | 2827 | goto err_gpio_clean; |
e4d6b795 | 2828 | |
ef1a628d MB |
2829 | /* Disable Interference Mitigation. */ |
2830 | if (phy->ops->interf_mitigation) | |
2831 | phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE); | |
e4d6b795 | 2832 | |
ef1a628d MB |
2833 | /* Select the antennae */ |
2834 | if (phy->ops->set_rx_antenna) | |
2835 | phy->ops->set_rx_antenna(dev, B43_ANTENNA_DEFAULT); | |
e4d6b795 MB |
2836 | b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT); |
2837 | ||
2838 | if (phy->type == B43_PHYTYPE_B) { | |
2839 | value16 = b43_read16(dev, 0x005E); | |
2840 | value16 |= 0x0004; | |
2841 | b43_write16(dev, 0x005E, value16); | |
2842 | } | |
2843 | b43_write32(dev, 0x0100, 0x01000000); | |
2844 | if (dev->dev->id.revision < 5) | |
2845 | b43_write32(dev, 0x010C, 0x01000000); | |
2846 | ||
2847 | b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) | |
2848 | & ~B43_MACCTL_INFRA); | |
2849 | b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) | |
2850 | | B43_MACCTL_INFRA); | |
e4d6b795 | 2851 | |
e4d6b795 MB |
2852 | /* Probe Response Timeout value */ |
2853 | /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */ | |
2854 | b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000); | |
2855 | ||
2856 | /* Initially set the wireless operation mode. */ | |
2857 | b43_adjust_opmode(dev); | |
2858 | ||
2859 | if (dev->dev->id.revision < 3) { | |
2860 | b43_write16(dev, 0x060E, 0x0000); | |
2861 | b43_write16(dev, 0x0610, 0x8000); | |
2862 | b43_write16(dev, 0x0604, 0x0000); | |
2863 | b43_write16(dev, 0x0606, 0x0200); | |
2864 | } else { | |
2865 | b43_write32(dev, 0x0188, 0x80000000); | |
2866 | b43_write32(dev, 0x018C, 0x02000000); | |
2867 | } | |
2868 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000); | |
2869 | b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00); | |
2870 | b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00); | |
2871 | b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00); | |
2872 | b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00); | |
2873 | b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00); | |
2874 | b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00); | |
2875 | ||
2876 | value32 = ssb_read32(dev->dev, SSB_TMSLOW); | |
2877 | value32 |= 0x00100000; | |
2878 | ssb_write32(dev->dev, SSB_TMSLOW, value32); | |
2879 | ||
2880 | b43_write16(dev, B43_MMIO_POWERUP_DELAY, | |
2881 | dev->dev->bus->chipco.fast_pwrup_delay); | |
2882 | ||
2883 | err = 0; | |
2884 | b43dbg(dev->wl, "Chip initialized\n"); | |
21954c36 | 2885 | out: |
e4d6b795 MB |
2886 | return err; |
2887 | ||
1a8d1227 | 2888 | err_gpio_clean: |
e4d6b795 | 2889 | b43_gpio_cleanup(dev); |
21954c36 | 2890 | return err; |
e4d6b795 MB |
2891 | } |
2892 | ||
e4d6b795 MB |
2893 | static void b43_periodic_every60sec(struct b43_wldev *dev) |
2894 | { | |
ef1a628d | 2895 | const struct b43_phy_operations *ops = dev->phy.ops; |
e4d6b795 | 2896 | |
ef1a628d MB |
2897 | if (ops->pwork_60sec) |
2898 | ops->pwork_60sec(dev); | |
18c8adeb MB |
2899 | |
2900 | /* Force check the TX power emission now. */ | |
2901 | b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME); | |
e4d6b795 MB |
2902 | } |
2903 | ||
2904 | static void b43_periodic_every30sec(struct b43_wldev *dev) | |
2905 | { | |
2906 | /* Update device statistics. */ | |
2907 | b43_calculate_link_quality(dev); | |
2908 | } | |
2909 | ||
2910 | static void b43_periodic_every15sec(struct b43_wldev *dev) | |
2911 | { | |
2912 | struct b43_phy *phy = &dev->phy; | |
9b839a74 MB |
2913 | u16 wdr; |
2914 | ||
2915 | if (dev->fw.opensource) { | |
2916 | /* Check if the firmware is still alive. | |
2917 | * It will reset the watchdog counter to 0 in its idle loop. */ | |
2918 | wdr = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_WATCHDOG_REG); | |
2919 | if (unlikely(wdr)) { | |
2920 | b43err(dev->wl, "Firmware watchdog: The firmware died!\n"); | |
2921 | b43_controller_restart(dev, "Firmware watchdog"); | |
2922 | return; | |
2923 | } else { | |
2924 | b43_shm_write16(dev, B43_SHM_SCRATCH, | |
2925 | B43_WATCHDOG_REG, 1); | |
2926 | } | |
2927 | } | |
e4d6b795 | 2928 | |
ef1a628d MB |
2929 | if (phy->ops->pwork_15sec) |
2930 | phy->ops->pwork_15sec(dev); | |
2931 | ||
00e0b8cb SB |
2932 | atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT); |
2933 | wmb(); | |
990b86f4 MB |
2934 | |
2935 | #if B43_DEBUG | |
2936 | if (b43_debug(dev, B43_DBG_VERBOSESTATS)) { | |
2937 | unsigned int i; | |
2938 | ||
2939 | b43dbg(dev->wl, "Stats: %7u IRQs/sec, %7u TX/sec, %7u RX/sec\n", | |
2940 | dev->irq_count / 15, | |
2941 | dev->tx_count / 15, | |
2942 | dev->rx_count / 15); | |
2943 | dev->irq_count = 0; | |
2944 | dev->tx_count = 0; | |
2945 | dev->rx_count = 0; | |
2946 | for (i = 0; i < ARRAY_SIZE(dev->irq_bit_count); i++) { | |
2947 | if (dev->irq_bit_count[i]) { | |
2948 | b43dbg(dev->wl, "Stats: %7u IRQ-%02u/sec (0x%08X)\n", | |
2949 | dev->irq_bit_count[i] / 15, i, (1 << i)); | |
2950 | dev->irq_bit_count[i] = 0; | |
2951 | } | |
2952 | } | |
2953 | } | |
2954 | #endif | |
e4d6b795 MB |
2955 | } |
2956 | ||
e4d6b795 MB |
2957 | static void do_periodic_work(struct b43_wldev *dev) |
2958 | { | |
2959 | unsigned int state; | |
2960 | ||
2961 | state = dev->periodic_state; | |
42bb4cd5 | 2962 | if (state % 4 == 0) |
e4d6b795 | 2963 | b43_periodic_every60sec(dev); |
42bb4cd5 | 2964 | if (state % 2 == 0) |
e4d6b795 | 2965 | b43_periodic_every30sec(dev); |
42bb4cd5 | 2966 | b43_periodic_every15sec(dev); |
e4d6b795 MB |
2967 | } |
2968 | ||
05b64b36 MB |
2969 | /* Periodic work locking policy: |
2970 | * The whole periodic work handler is protected by | |
2971 | * wl->mutex. If another lock is needed somewhere in the | |
2972 | * pwork callchain, it's aquired in-place, where it's needed. | |
e4d6b795 | 2973 | */ |
e4d6b795 MB |
2974 | static void b43_periodic_work_handler(struct work_struct *work) |
2975 | { | |
05b64b36 MB |
2976 | struct b43_wldev *dev = container_of(work, struct b43_wldev, |
2977 | periodic_work.work); | |
2978 | struct b43_wl *wl = dev->wl; | |
2979 | unsigned long delay; | |
e4d6b795 | 2980 | |
05b64b36 | 2981 | mutex_lock(&wl->mutex); |
e4d6b795 MB |
2982 | |
2983 | if (unlikely(b43_status(dev) != B43_STAT_STARTED)) | |
2984 | goto out; | |
2985 | if (b43_debug(dev, B43_DBG_PWORK_STOP)) | |
2986 | goto out_requeue; | |
2987 | ||
05b64b36 | 2988 | do_periodic_work(dev); |
e4d6b795 | 2989 | |
e4d6b795 | 2990 | dev->periodic_state++; |
42bb4cd5 | 2991 | out_requeue: |
e4d6b795 MB |
2992 | if (b43_debug(dev, B43_DBG_PWORK_FAST)) |
2993 | delay = msecs_to_jiffies(50); | |
2994 | else | |
82cd682d | 2995 | delay = round_jiffies_relative(HZ * 15); |
42935eca | 2996 | ieee80211_queue_delayed_work(wl->hw, &dev->periodic_work, delay); |
42bb4cd5 | 2997 | out: |
05b64b36 | 2998 | mutex_unlock(&wl->mutex); |
e4d6b795 MB |
2999 | } |
3000 | ||
3001 | static void b43_periodic_tasks_setup(struct b43_wldev *dev) | |
3002 | { | |
3003 | struct delayed_work *work = &dev->periodic_work; | |
3004 | ||
3005 | dev->periodic_state = 0; | |
3006 | INIT_DELAYED_WORK(work, b43_periodic_work_handler); | |
42935eca | 3007 | ieee80211_queue_delayed_work(dev->wl->hw, work, 0); |
e4d6b795 MB |
3008 | } |
3009 | ||
f3dd3fcc | 3010 | /* Check if communication with the device works correctly. */ |
e4d6b795 MB |
3011 | static int b43_validate_chipaccess(struct b43_wldev *dev) |
3012 | { | |
f62ae6cd | 3013 | u32 v, backup0, backup4; |
e4d6b795 | 3014 | |
f62ae6cd MB |
3015 | backup0 = b43_shm_read32(dev, B43_SHM_SHARED, 0); |
3016 | backup4 = b43_shm_read32(dev, B43_SHM_SHARED, 4); | |
f3dd3fcc MB |
3017 | |
3018 | /* Check for read/write and endianness problems. */ | |
e4d6b795 MB |
3019 | b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55); |
3020 | if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55) | |
3021 | goto error; | |
f3dd3fcc MB |
3022 | b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA); |
3023 | if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA) | |
e4d6b795 MB |
3024 | goto error; |
3025 | ||
f62ae6cd MB |
3026 | /* Check if unaligned 32bit SHM_SHARED access works properly. |
3027 | * However, don't bail out on failure, because it's noncritical. */ | |
3028 | b43_shm_write16(dev, B43_SHM_SHARED, 0, 0x1122); | |
3029 | b43_shm_write16(dev, B43_SHM_SHARED, 2, 0x3344); | |
3030 | b43_shm_write16(dev, B43_SHM_SHARED, 4, 0x5566); | |
3031 | b43_shm_write16(dev, B43_SHM_SHARED, 6, 0x7788); | |
3032 | if (b43_shm_read32(dev, B43_SHM_SHARED, 2) != 0x55663344) | |
3033 | b43warn(dev->wl, "Unaligned 32bit SHM read access is broken\n"); | |
3034 | b43_shm_write32(dev, B43_SHM_SHARED, 2, 0xAABBCCDD); | |
3035 | if (b43_shm_read16(dev, B43_SHM_SHARED, 0) != 0x1122 || | |
3036 | b43_shm_read16(dev, B43_SHM_SHARED, 2) != 0xCCDD || | |
3037 | b43_shm_read16(dev, B43_SHM_SHARED, 4) != 0xAABB || | |
3038 | b43_shm_read16(dev, B43_SHM_SHARED, 6) != 0x7788) | |
3039 | b43warn(dev->wl, "Unaligned 32bit SHM write access is broken\n"); | |
3040 | ||
3041 | b43_shm_write32(dev, B43_SHM_SHARED, 0, backup0); | |
3042 | b43_shm_write32(dev, B43_SHM_SHARED, 4, backup4); | |
f3dd3fcc MB |
3043 | |
3044 | if ((dev->dev->id.revision >= 3) && (dev->dev->id.revision <= 10)) { | |
3045 | /* The 32bit register shadows the two 16bit registers | |
3046 | * with update sideeffects. Validate this. */ | |
3047 | b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA); | |
3048 | b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB); | |
3049 | if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB) | |
3050 | goto error; | |
3051 | if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC) | |
3052 | goto error; | |
3053 | } | |
3054 | b43_write32(dev, B43_MMIO_TSF_CFP_START, 0); | |
3055 | ||
3056 | v = b43_read32(dev, B43_MMIO_MACCTL); | |
3057 | v |= B43_MACCTL_GMODE; | |
3058 | if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED)) | |
e4d6b795 MB |
3059 | goto error; |
3060 | ||
3061 | return 0; | |
f3dd3fcc | 3062 | error: |
e4d6b795 MB |
3063 | b43err(dev->wl, "Failed to validate the chipaccess\n"); |
3064 | return -ENODEV; | |
3065 | } | |
3066 | ||
3067 | static void b43_security_init(struct b43_wldev *dev) | |
3068 | { | |
e4d6b795 MB |
3069 | dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP); |
3070 | /* KTP is a word address, but we address SHM bytewise. | |
3071 | * So multiply by two. | |
3072 | */ | |
3073 | dev->ktp *= 2; | |
66d2d089 MB |
3074 | /* Number of RCMTA address slots */ |
3075 | b43_write16(dev, B43_MMIO_RCMTA_COUNT, B43_NR_PAIRWISE_KEYS); | |
3076 | /* Clear the key memory. */ | |
e4d6b795 MB |
3077 | b43_clear_keys(dev); |
3078 | } | |
3079 | ||
616de35d | 3080 | #ifdef CONFIG_B43_HWRNG |
99da185a | 3081 | static int b43_rng_read(struct hwrng *rng, u32 *data) |
e4d6b795 MB |
3082 | { |
3083 | struct b43_wl *wl = (struct b43_wl *)rng->priv; | |
a78b3bb2 MB |
3084 | struct b43_wldev *dev; |
3085 | int count = -ENODEV; | |
e4d6b795 | 3086 | |
a78b3bb2 MB |
3087 | mutex_lock(&wl->mutex); |
3088 | dev = wl->current_dev; | |
3089 | if (likely(dev && b43_status(dev) >= B43_STAT_INITIALIZED)) { | |
3090 | *data = b43_read16(dev, B43_MMIO_RNG); | |
3091 | count = sizeof(u16); | |
3092 | } | |
3093 | mutex_unlock(&wl->mutex); | |
e4d6b795 | 3094 | |
a78b3bb2 | 3095 | return count; |
e4d6b795 | 3096 | } |
616de35d | 3097 | #endif /* CONFIG_B43_HWRNG */ |
e4d6b795 | 3098 | |
b844eba2 | 3099 | static void b43_rng_exit(struct b43_wl *wl) |
e4d6b795 | 3100 | { |
616de35d | 3101 | #ifdef CONFIG_B43_HWRNG |
e4d6b795 | 3102 | if (wl->rng_initialized) |
b844eba2 | 3103 | hwrng_unregister(&wl->rng); |
616de35d | 3104 | #endif /* CONFIG_B43_HWRNG */ |
e4d6b795 MB |
3105 | } |
3106 | ||
3107 | static int b43_rng_init(struct b43_wl *wl) | |
3108 | { | |
616de35d | 3109 | int err = 0; |
e4d6b795 | 3110 | |
616de35d | 3111 | #ifdef CONFIG_B43_HWRNG |
e4d6b795 MB |
3112 | snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name), |
3113 | "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy)); | |
3114 | wl->rng.name = wl->rng_name; | |
3115 | wl->rng.data_read = b43_rng_read; | |
3116 | wl->rng.priv = (unsigned long)wl; | |
3117 | wl->rng_initialized = 1; | |
3118 | err = hwrng_register(&wl->rng); | |
3119 | if (err) { | |
3120 | wl->rng_initialized = 0; | |
3121 | b43err(wl, "Failed to register the random " | |
3122 | "number generator (%d)\n", err); | |
3123 | } | |
616de35d | 3124 | #endif /* CONFIG_B43_HWRNG */ |
e4d6b795 MB |
3125 | |
3126 | return err; | |
3127 | } | |
3128 | ||
f5d40eed | 3129 | static void b43_tx_work(struct work_struct *work) |
e4d6b795 | 3130 | { |
f5d40eed MB |
3131 | struct b43_wl *wl = container_of(work, struct b43_wl, tx_work); |
3132 | struct b43_wldev *dev; | |
3133 | struct sk_buff *skb; | |
3134 | int err = 0; | |
e4d6b795 | 3135 | |
f5d40eed MB |
3136 | mutex_lock(&wl->mutex); |
3137 | dev = wl->current_dev; | |
3138 | if (unlikely(!dev || b43_status(dev) < B43_STAT_STARTED)) { | |
3139 | mutex_unlock(&wl->mutex); | |
3140 | return; | |
5100d5ac | 3141 | } |
21a75d77 | 3142 | |
f5d40eed MB |
3143 | while (skb_queue_len(&wl->tx_queue)) { |
3144 | skb = skb_dequeue(&wl->tx_queue); | |
21a75d77 | 3145 | |
21a75d77 | 3146 | if (b43_using_pio_transfers(dev)) |
e039fa4a | 3147 | err = b43_pio_tx(dev, skb); |
21a75d77 | 3148 | else |
e039fa4a | 3149 | err = b43_dma_tx(dev, skb); |
f5d40eed MB |
3150 | if (unlikely(err)) |
3151 | dev_kfree_skb(skb); /* Drop it */ | |
21a75d77 MB |
3152 | } |
3153 | ||
990b86f4 MB |
3154 | #if B43_DEBUG |
3155 | dev->tx_count++; | |
3156 | #endif | |
f5d40eed MB |
3157 | mutex_unlock(&wl->mutex); |
3158 | } | |
21a75d77 | 3159 | |
f5d40eed MB |
3160 | static int b43_op_tx(struct ieee80211_hw *hw, |
3161 | struct sk_buff *skb) | |
3162 | { | |
3163 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3164 | ||
3165 | if (unlikely(skb->len < 2 + 2 + 6)) { | |
3166 | /* Too short, this can't be a valid frame. */ | |
3167 | dev_kfree_skb_any(skb); | |
3168 | return NETDEV_TX_OK; | |
3169 | } | |
3170 | B43_WARN_ON(skb_shinfo(skb)->nr_frags); | |
3171 | ||
3172 | skb_queue_tail(&wl->tx_queue, skb); | |
3173 | ieee80211_queue_work(wl->hw, &wl->tx_work); | |
c9e8eae0 | 3174 | |
e4d6b795 MB |
3175 | return NETDEV_TX_OK; |
3176 | } | |
3177 | ||
e6f5b934 MB |
3178 | static void b43_qos_params_upload(struct b43_wldev *dev, |
3179 | const struct ieee80211_tx_queue_params *p, | |
3180 | u16 shm_offset) | |
3181 | { | |
3182 | u16 params[B43_NR_QOSPARAMS]; | |
0b57664c | 3183 | int bslots, tmp; |
e6f5b934 MB |
3184 | unsigned int i; |
3185 | ||
b0544eb6 MB |
3186 | if (!dev->qos_enabled) |
3187 | return; | |
3188 | ||
0b57664c | 3189 | bslots = b43_read16(dev, B43_MMIO_RNG) & p->cw_min; |
e6f5b934 MB |
3190 | |
3191 | memset(¶ms, 0, sizeof(params)); | |
3192 | ||
3193 | params[B43_QOSPARAM_TXOP] = p->txop * 32; | |
0b57664c JB |
3194 | params[B43_QOSPARAM_CWMIN] = p->cw_min; |
3195 | params[B43_QOSPARAM_CWMAX] = p->cw_max; | |
3196 | params[B43_QOSPARAM_CWCUR] = p->cw_min; | |
3197 | params[B43_QOSPARAM_AIFS] = p->aifs; | |
e6f5b934 | 3198 | params[B43_QOSPARAM_BSLOTS] = bslots; |
0b57664c | 3199 | params[B43_QOSPARAM_REGGAP] = bslots + p->aifs; |
e6f5b934 MB |
3200 | |
3201 | for (i = 0; i < ARRAY_SIZE(params); i++) { | |
3202 | if (i == B43_QOSPARAM_STATUS) { | |
3203 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, | |
3204 | shm_offset + (i * 2)); | |
3205 | /* Mark the parameters as updated. */ | |
3206 | tmp |= 0x100; | |
3207 | b43_shm_write16(dev, B43_SHM_SHARED, | |
3208 | shm_offset + (i * 2), | |
3209 | tmp); | |
3210 | } else { | |
3211 | b43_shm_write16(dev, B43_SHM_SHARED, | |
3212 | shm_offset + (i * 2), | |
3213 | params[i]); | |
3214 | } | |
3215 | } | |
3216 | } | |
3217 | ||
c40c1129 MB |
3218 | /* Mapping of mac80211 queue numbers to b43 QoS SHM offsets. */ |
3219 | static const u16 b43_qos_shm_offsets[] = { | |
3220 | /* [mac80211-queue-nr] = SHM_OFFSET, */ | |
3221 | [0] = B43_QOS_VOICE, | |
3222 | [1] = B43_QOS_VIDEO, | |
3223 | [2] = B43_QOS_BESTEFFORT, | |
3224 | [3] = B43_QOS_BACKGROUND, | |
3225 | }; | |
3226 | ||
5a5f3b40 MB |
3227 | /* Update all QOS parameters in hardware. */ |
3228 | static void b43_qos_upload_all(struct b43_wldev *dev) | |
e6f5b934 MB |
3229 | { |
3230 | struct b43_wl *wl = dev->wl; | |
3231 | struct b43_qos_params *params; | |
e6f5b934 MB |
3232 | unsigned int i; |
3233 | ||
b0544eb6 MB |
3234 | if (!dev->qos_enabled) |
3235 | return; | |
3236 | ||
c40c1129 MB |
3237 | BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != |
3238 | ARRAY_SIZE(wl->qos_params)); | |
e6f5b934 MB |
3239 | |
3240 | b43_mac_suspend(dev); | |
e6f5b934 MB |
3241 | for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) { |
3242 | params = &(wl->qos_params[i]); | |
5a5f3b40 MB |
3243 | b43_qos_params_upload(dev, &(params->p), |
3244 | b43_qos_shm_offsets[i]); | |
e6f5b934 | 3245 | } |
e6f5b934 MB |
3246 | b43_mac_enable(dev); |
3247 | } | |
3248 | ||
3249 | static void b43_qos_clear(struct b43_wl *wl) | |
3250 | { | |
3251 | struct b43_qos_params *params; | |
3252 | unsigned int i; | |
3253 | ||
c40c1129 MB |
3254 | /* Initialize QoS parameters to sane defaults. */ |
3255 | ||
3256 | BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != | |
3257 | ARRAY_SIZE(wl->qos_params)); | |
3258 | ||
e6f5b934 MB |
3259 | for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) { |
3260 | params = &(wl->qos_params[i]); | |
3261 | ||
c40c1129 MB |
3262 | switch (b43_qos_shm_offsets[i]) { |
3263 | case B43_QOS_VOICE: | |
3264 | params->p.txop = 0; | |
3265 | params->p.aifs = 2; | |
3266 | params->p.cw_min = 0x0001; | |
3267 | params->p.cw_max = 0x0001; | |
3268 | break; | |
3269 | case B43_QOS_VIDEO: | |
3270 | params->p.txop = 0; | |
3271 | params->p.aifs = 2; | |
3272 | params->p.cw_min = 0x0001; | |
3273 | params->p.cw_max = 0x0001; | |
3274 | break; | |
3275 | case B43_QOS_BESTEFFORT: | |
3276 | params->p.txop = 0; | |
3277 | params->p.aifs = 3; | |
3278 | params->p.cw_min = 0x0001; | |
3279 | params->p.cw_max = 0x03FF; | |
3280 | break; | |
3281 | case B43_QOS_BACKGROUND: | |
3282 | params->p.txop = 0; | |
3283 | params->p.aifs = 7; | |
3284 | params->p.cw_min = 0x0001; | |
3285 | params->p.cw_max = 0x03FF; | |
3286 | break; | |
3287 | default: | |
3288 | B43_WARN_ON(1); | |
3289 | } | |
e6f5b934 MB |
3290 | } |
3291 | } | |
3292 | ||
3293 | /* Initialize the core's QOS capabilities */ | |
3294 | static void b43_qos_init(struct b43_wldev *dev) | |
3295 | { | |
b0544eb6 MB |
3296 | if (!dev->qos_enabled) { |
3297 | /* Disable QOS support. */ | |
3298 | b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_EDCF); | |
3299 | b43_write16(dev, B43_MMIO_IFSCTL, | |
3300 | b43_read16(dev, B43_MMIO_IFSCTL) | |
3301 | & ~B43_MMIO_IFSCTL_USE_EDCF); | |
3302 | b43dbg(dev->wl, "QoS disabled\n"); | |
3303 | return; | |
3304 | } | |
3305 | ||
e6f5b934 | 3306 | /* Upload the current QOS parameters. */ |
5a5f3b40 | 3307 | b43_qos_upload_all(dev); |
e6f5b934 MB |
3308 | |
3309 | /* Enable QOS support. */ | |
3310 | b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF); | |
3311 | b43_write16(dev, B43_MMIO_IFSCTL, | |
3312 | b43_read16(dev, B43_MMIO_IFSCTL) | |
3313 | | B43_MMIO_IFSCTL_USE_EDCF); | |
b0544eb6 | 3314 | b43dbg(dev->wl, "QoS enabled\n"); |
e6f5b934 MB |
3315 | } |
3316 | ||
e100bb64 | 3317 | static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue, |
40faacc4 | 3318 | const struct ieee80211_tx_queue_params *params) |
e4d6b795 | 3319 | { |
e6f5b934 | 3320 | struct b43_wl *wl = hw_to_b43_wl(hw); |
5a5f3b40 | 3321 | struct b43_wldev *dev; |
e6f5b934 | 3322 | unsigned int queue = (unsigned int)_queue; |
5a5f3b40 | 3323 | int err = -ENODEV; |
e6f5b934 MB |
3324 | |
3325 | if (queue >= ARRAY_SIZE(wl->qos_params)) { | |
3326 | /* Queue not available or don't support setting | |
3327 | * params on this queue. Return success to not | |
3328 | * confuse mac80211. */ | |
3329 | return 0; | |
3330 | } | |
5a5f3b40 MB |
3331 | BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != |
3332 | ARRAY_SIZE(wl->qos_params)); | |
e6f5b934 | 3333 | |
5a5f3b40 MB |
3334 | mutex_lock(&wl->mutex); |
3335 | dev = wl->current_dev; | |
3336 | if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) | |
3337 | goto out_unlock; | |
e6f5b934 | 3338 | |
5a5f3b40 MB |
3339 | memcpy(&(wl->qos_params[queue].p), params, sizeof(*params)); |
3340 | b43_mac_suspend(dev); | |
3341 | b43_qos_params_upload(dev, &(wl->qos_params[queue].p), | |
3342 | b43_qos_shm_offsets[queue]); | |
3343 | b43_mac_enable(dev); | |
3344 | err = 0; | |
e6f5b934 | 3345 | |
5a5f3b40 MB |
3346 | out_unlock: |
3347 | mutex_unlock(&wl->mutex); | |
3348 | ||
3349 | return err; | |
e4d6b795 MB |
3350 | } |
3351 | ||
40faacc4 MB |
3352 | static int b43_op_get_tx_stats(struct ieee80211_hw *hw, |
3353 | struct ieee80211_tx_queue_stats *stats) | |
e4d6b795 MB |
3354 | { |
3355 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
36dbd954 | 3356 | struct b43_wldev *dev; |
e4d6b795 MB |
3357 | int err = -ENODEV; |
3358 | ||
36dbd954 MB |
3359 | mutex_lock(&wl->mutex); |
3360 | dev = wl->current_dev; | |
3361 | if (dev && b43_status(dev) >= B43_STAT_STARTED) { | |
5100d5ac MB |
3362 | if (b43_using_pio_transfers(dev)) |
3363 | b43_pio_get_tx_stats(dev, stats); | |
3364 | else | |
3365 | b43_dma_get_tx_stats(dev, stats); | |
e4d6b795 MB |
3366 | err = 0; |
3367 | } | |
36dbd954 MB |
3368 | mutex_unlock(&wl->mutex); |
3369 | ||
e4d6b795 MB |
3370 | return err; |
3371 | } | |
3372 | ||
40faacc4 MB |
3373 | static int b43_op_get_stats(struct ieee80211_hw *hw, |
3374 | struct ieee80211_low_level_stats *stats) | |
e4d6b795 MB |
3375 | { |
3376 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
e4d6b795 | 3377 | |
36dbd954 | 3378 | mutex_lock(&wl->mutex); |
e4d6b795 | 3379 | memcpy(stats, &wl->ieee_stats, sizeof(*stats)); |
36dbd954 | 3380 | mutex_unlock(&wl->mutex); |
e4d6b795 MB |
3381 | |
3382 | return 0; | |
3383 | } | |
3384 | ||
08e87a83 AF |
3385 | static u64 b43_op_get_tsf(struct ieee80211_hw *hw) |
3386 | { | |
3387 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3388 | struct b43_wldev *dev; | |
3389 | u64 tsf; | |
3390 | ||
3391 | mutex_lock(&wl->mutex); | |
08e87a83 AF |
3392 | dev = wl->current_dev; |
3393 | ||
3394 | if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) | |
3395 | b43_tsf_read(dev, &tsf); | |
3396 | else | |
3397 | tsf = 0; | |
3398 | ||
08e87a83 AF |
3399 | mutex_unlock(&wl->mutex); |
3400 | ||
3401 | return tsf; | |
3402 | } | |
3403 | ||
3404 | static void b43_op_set_tsf(struct ieee80211_hw *hw, u64 tsf) | |
3405 | { | |
3406 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3407 | struct b43_wldev *dev; | |
3408 | ||
3409 | mutex_lock(&wl->mutex); | |
08e87a83 AF |
3410 | dev = wl->current_dev; |
3411 | ||
3412 | if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) | |
3413 | b43_tsf_write(dev, tsf); | |
3414 | ||
08e87a83 AF |
3415 | mutex_unlock(&wl->mutex); |
3416 | } | |
3417 | ||
e4d6b795 MB |
3418 | static void b43_put_phy_into_reset(struct b43_wldev *dev) |
3419 | { | |
3420 | struct ssb_device *sdev = dev->dev; | |
3421 | u32 tmslow; | |
3422 | ||
3423 | tmslow = ssb_read32(sdev, SSB_TMSLOW); | |
3424 | tmslow &= ~B43_TMSLOW_GMODE; | |
3425 | tmslow |= B43_TMSLOW_PHYRESET; | |
3426 | tmslow |= SSB_TMSLOW_FGC; | |
3427 | ssb_write32(sdev, SSB_TMSLOW, tmslow); | |
3428 | msleep(1); | |
3429 | ||
3430 | tmslow = ssb_read32(sdev, SSB_TMSLOW); | |
3431 | tmslow &= ~SSB_TMSLOW_FGC; | |
3432 | tmslow |= B43_TMSLOW_PHYRESET; | |
3433 | ssb_write32(sdev, SSB_TMSLOW, tmslow); | |
3434 | msleep(1); | |
3435 | } | |
3436 | ||
99da185a | 3437 | static const char *band_to_string(enum ieee80211_band band) |
bb1eeff1 MB |
3438 | { |
3439 | switch (band) { | |
3440 | case IEEE80211_BAND_5GHZ: | |
3441 | return "5"; | |
3442 | case IEEE80211_BAND_2GHZ: | |
3443 | return "2.4"; | |
3444 | default: | |
3445 | break; | |
3446 | } | |
3447 | B43_WARN_ON(1); | |
3448 | return ""; | |
3449 | } | |
3450 | ||
e4d6b795 | 3451 | /* Expects wl->mutex locked */ |
bb1eeff1 | 3452 | static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan) |
e4d6b795 | 3453 | { |
bb1eeff1 | 3454 | struct b43_wldev *up_dev = NULL; |
e4d6b795 | 3455 | struct b43_wldev *down_dev; |
bb1eeff1 | 3456 | struct b43_wldev *d; |
e4d6b795 | 3457 | int err; |
922d8a0b | 3458 | bool uninitialized_var(gmode); |
e4d6b795 MB |
3459 | int prev_status; |
3460 | ||
bb1eeff1 MB |
3461 | /* Find a device and PHY which supports the band. */ |
3462 | list_for_each_entry(d, &wl->devlist, list) { | |
3463 | switch (chan->band) { | |
3464 | case IEEE80211_BAND_5GHZ: | |
3465 | if (d->phy.supports_5ghz) { | |
3466 | up_dev = d; | |
3467 | gmode = 0; | |
3468 | } | |
3469 | break; | |
3470 | case IEEE80211_BAND_2GHZ: | |
3471 | if (d->phy.supports_2ghz) { | |
3472 | up_dev = d; | |
3473 | gmode = 1; | |
3474 | } | |
3475 | break; | |
3476 | default: | |
3477 | B43_WARN_ON(1); | |
3478 | return -EINVAL; | |
3479 | } | |
3480 | if (up_dev) | |
3481 | break; | |
3482 | } | |
3483 | if (!up_dev) { | |
3484 | b43err(wl, "Could not find a device for %s-GHz band operation\n", | |
3485 | band_to_string(chan->band)); | |
3486 | return -ENODEV; | |
e4d6b795 MB |
3487 | } |
3488 | if ((up_dev == wl->current_dev) && | |
3489 | (!!wl->current_dev->phy.gmode == !!gmode)) { | |
3490 | /* This device is already running. */ | |
3491 | return 0; | |
3492 | } | |
bb1eeff1 MB |
3493 | b43dbg(wl, "Switching to %s-GHz band\n", |
3494 | band_to_string(chan->band)); | |
e4d6b795 MB |
3495 | down_dev = wl->current_dev; |
3496 | ||
3497 | prev_status = b43_status(down_dev); | |
3498 | /* Shutdown the currently running core. */ | |
3499 | if (prev_status >= B43_STAT_STARTED) | |
36dbd954 | 3500 | down_dev = b43_wireless_core_stop(down_dev); |
e4d6b795 MB |
3501 | if (prev_status >= B43_STAT_INITIALIZED) |
3502 | b43_wireless_core_exit(down_dev); | |
3503 | ||
3504 | if (down_dev != up_dev) { | |
3505 | /* We switch to a different core, so we put PHY into | |
3506 | * RESET on the old core. */ | |
3507 | b43_put_phy_into_reset(down_dev); | |
3508 | } | |
3509 | ||
3510 | /* Now start the new core. */ | |
3511 | up_dev->phy.gmode = gmode; | |
3512 | if (prev_status >= B43_STAT_INITIALIZED) { | |
3513 | err = b43_wireless_core_init(up_dev); | |
3514 | if (err) { | |
3515 | b43err(wl, "Fatal: Could not initialize device for " | |
bb1eeff1 MB |
3516 | "selected %s-GHz band\n", |
3517 | band_to_string(chan->band)); | |
e4d6b795 MB |
3518 | goto init_failure; |
3519 | } | |
3520 | } | |
3521 | if (prev_status >= B43_STAT_STARTED) { | |
3522 | err = b43_wireless_core_start(up_dev); | |
3523 | if (err) { | |
3524 | b43err(wl, "Fatal: Coult not start device for " | |
bb1eeff1 MB |
3525 | "selected %s-GHz band\n", |
3526 | band_to_string(chan->band)); | |
e4d6b795 MB |
3527 | b43_wireless_core_exit(up_dev); |
3528 | goto init_failure; | |
3529 | } | |
3530 | } | |
3531 | B43_WARN_ON(b43_status(up_dev) != prev_status); | |
3532 | ||
3533 | wl->current_dev = up_dev; | |
3534 | ||
3535 | return 0; | |
bb1eeff1 | 3536 | init_failure: |
e4d6b795 MB |
3537 | /* Whoops, failed to init the new core. No core is operating now. */ |
3538 | wl->current_dev = NULL; | |
3539 | return err; | |
3540 | } | |
3541 | ||
9124b077 JB |
3542 | /* Write the short and long frame retry limit values. */ |
3543 | static void b43_set_retry_limits(struct b43_wldev *dev, | |
3544 | unsigned int short_retry, | |
3545 | unsigned int long_retry) | |
3546 | { | |
3547 | /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing | |
3548 | * the chip-internal counter. */ | |
3549 | short_retry = min(short_retry, (unsigned int)0xF); | |
3550 | long_retry = min(long_retry, (unsigned int)0xF); | |
3551 | ||
3552 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT, | |
3553 | short_retry); | |
3554 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT, | |
3555 | long_retry); | |
3556 | } | |
3557 | ||
e8975581 | 3558 | static int b43_op_config(struct ieee80211_hw *hw, u32 changed) |
e4d6b795 MB |
3559 | { |
3560 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3561 | struct b43_wldev *dev; | |
3562 | struct b43_phy *phy; | |
e8975581 | 3563 | struct ieee80211_conf *conf = &hw->conf; |
9db1f6d7 | 3564 | int antenna; |
e4d6b795 | 3565 | int err = 0; |
e4d6b795 | 3566 | |
e4d6b795 MB |
3567 | mutex_lock(&wl->mutex); |
3568 | ||
bb1eeff1 MB |
3569 | /* Switch the band (if necessary). This might change the active core. */ |
3570 | err = b43_switch_band(wl, conf->channel); | |
e4d6b795 MB |
3571 | if (err) |
3572 | goto out_unlock_mutex; | |
3573 | dev = wl->current_dev; | |
3574 | phy = &dev->phy; | |
3575 | ||
aa4c7b2a RM |
3576 | if (conf_is_ht(conf)) |
3577 | phy->is_40mhz = | |
3578 | (conf_is_ht40_minus(conf) || conf_is_ht40_plus(conf)); | |
3579 | else | |
3580 | phy->is_40mhz = false; | |
3581 | ||
d10d0e57 MB |
3582 | b43_mac_suspend(dev); |
3583 | ||
9124b077 JB |
3584 | if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) |
3585 | b43_set_retry_limits(dev, conf->short_frame_max_tx_count, | |
3586 | conf->long_frame_max_tx_count); | |
3587 | changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS; | |
3588 | if (!changed) | |
d10d0e57 | 3589 | goto out_mac_enable; |
e4d6b795 MB |
3590 | |
3591 | /* Switch to the requested channel. | |
3592 | * The firmware takes care of races with the TX handler. */ | |
8318d78a | 3593 | if (conf->channel->hw_value != phy->channel) |
ef1a628d | 3594 | b43_switch_channel(dev, conf->channel->hw_value); |
e4d6b795 | 3595 | |
0869aea0 | 3596 | dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_MONITOR); |
d42ce84a | 3597 | |
e4d6b795 MB |
3598 | /* Adjust the desired TX power level. */ |
3599 | if (conf->power_level != 0) { | |
18c8adeb MB |
3600 | if (conf->power_level != phy->desired_txpower) { |
3601 | phy->desired_txpower = conf->power_level; | |
3602 | b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME | | |
3603 | B43_TXPWR_IGNORE_TSSI); | |
e4d6b795 MB |
3604 | } |
3605 | } | |
3606 | ||
3607 | /* Antennas for RX and management frame TX. */ | |
0f4ac38b | 3608 | antenna = B43_ANTENNA_DEFAULT; |
9db1f6d7 | 3609 | b43_mgmtframe_txantenna(dev, antenna); |
0f4ac38b | 3610 | antenna = B43_ANTENNA_DEFAULT; |
ef1a628d MB |
3611 | if (phy->ops->set_rx_antenna) |
3612 | phy->ops->set_rx_antenna(dev, antenna); | |
e4d6b795 | 3613 | |
fd4973c5 LF |
3614 | if (wl->radio_enabled != phy->radio_on) { |
3615 | if (wl->radio_enabled) { | |
19d337df | 3616 | b43_software_rfkill(dev, false); |
fda9abcf MB |
3617 | b43info(dev->wl, "Radio turned on by software\n"); |
3618 | if (!dev->radio_hw_enable) { | |
3619 | b43info(dev->wl, "The hardware RF-kill button " | |
3620 | "still turns the radio physically off. " | |
3621 | "Press the button to turn it on.\n"); | |
3622 | } | |
3623 | } else { | |
19d337df | 3624 | b43_software_rfkill(dev, true); |
fda9abcf MB |
3625 | b43info(dev->wl, "Radio turned off by software\n"); |
3626 | } | |
3627 | } | |
3628 | ||
d10d0e57 MB |
3629 | out_mac_enable: |
3630 | b43_mac_enable(dev); | |
3631 | out_unlock_mutex: | |
e4d6b795 MB |
3632 | mutex_unlock(&wl->mutex); |
3633 | ||
3634 | return err; | |
3635 | } | |
3636 | ||
881d948c | 3637 | static void b43_update_basic_rates(struct b43_wldev *dev, u32 brates) |
c7ab5ef9 JB |
3638 | { |
3639 | struct ieee80211_supported_band *sband = | |
3640 | dev->wl->hw->wiphy->bands[b43_current_band(dev->wl)]; | |
3641 | struct ieee80211_rate *rate; | |
3642 | int i; | |
3643 | u16 basic, direct, offset, basic_offset, rateptr; | |
3644 | ||
3645 | for (i = 0; i < sband->n_bitrates; i++) { | |
3646 | rate = &sband->bitrates[i]; | |
3647 | ||
3648 | if (b43_is_cck_rate(rate->hw_value)) { | |
3649 | direct = B43_SHM_SH_CCKDIRECT; | |
3650 | basic = B43_SHM_SH_CCKBASIC; | |
3651 | offset = b43_plcp_get_ratecode_cck(rate->hw_value); | |
3652 | offset &= 0xF; | |
3653 | } else { | |
3654 | direct = B43_SHM_SH_OFDMDIRECT; | |
3655 | basic = B43_SHM_SH_OFDMBASIC; | |
3656 | offset = b43_plcp_get_ratecode_ofdm(rate->hw_value); | |
3657 | offset &= 0xF; | |
3658 | } | |
3659 | ||
3660 | rate = ieee80211_get_response_rate(sband, brates, rate->bitrate); | |
3661 | ||
3662 | if (b43_is_cck_rate(rate->hw_value)) { | |
3663 | basic_offset = b43_plcp_get_ratecode_cck(rate->hw_value); | |
3664 | basic_offset &= 0xF; | |
3665 | } else { | |
3666 | basic_offset = b43_plcp_get_ratecode_ofdm(rate->hw_value); | |
3667 | basic_offset &= 0xF; | |
3668 | } | |
3669 | ||
3670 | /* | |
3671 | * Get the pointer that we need to point to | |
3672 | * from the direct map | |
3673 | */ | |
3674 | rateptr = b43_shm_read16(dev, B43_SHM_SHARED, | |
3675 | direct + 2 * basic_offset); | |
3676 | /* and write it to the basic map */ | |
3677 | b43_shm_write16(dev, B43_SHM_SHARED, basic + 2 * offset, | |
3678 | rateptr); | |
3679 | } | |
3680 | } | |
3681 | ||
3682 | static void b43_op_bss_info_changed(struct ieee80211_hw *hw, | |
3683 | struct ieee80211_vif *vif, | |
3684 | struct ieee80211_bss_conf *conf, | |
3685 | u32 changed) | |
3686 | { | |
3687 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3688 | struct b43_wldev *dev; | |
c7ab5ef9 JB |
3689 | |
3690 | mutex_lock(&wl->mutex); | |
3691 | ||
3692 | dev = wl->current_dev; | |
d10d0e57 | 3693 | if (!dev || b43_status(dev) < B43_STAT_STARTED) |
c7ab5ef9 | 3694 | goto out_unlock_mutex; |
2d0ddec5 JB |
3695 | |
3696 | B43_WARN_ON(wl->vif != vif); | |
3697 | ||
3698 | if (changed & BSS_CHANGED_BSSID) { | |
2d0ddec5 JB |
3699 | if (conf->bssid) |
3700 | memcpy(wl->bssid, conf->bssid, ETH_ALEN); | |
3701 | else | |
3702 | memset(wl->bssid, 0, ETH_ALEN); | |
3f0d843b | 3703 | } |
2d0ddec5 | 3704 | |
3f0d843b JB |
3705 | if (b43_status(dev) >= B43_STAT_INITIALIZED) { |
3706 | if (changed & BSS_CHANGED_BEACON && | |
3707 | (b43_is_mode(wl, NL80211_IFTYPE_AP) || | |
3708 | b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) || | |
3709 | b43_is_mode(wl, NL80211_IFTYPE_ADHOC))) | |
3710 | b43_update_templates(wl); | |
3711 | ||
3712 | if (changed & BSS_CHANGED_BSSID) | |
2d0ddec5 | 3713 | b43_write_mac_bssid_templates(dev); |
2d0ddec5 JB |
3714 | } |
3715 | ||
c7ab5ef9 JB |
3716 | b43_mac_suspend(dev); |
3717 | ||
57c4d7b4 JB |
3718 | /* Update templates for AP/mesh mode. */ |
3719 | if (changed & BSS_CHANGED_BEACON_INT && | |
3720 | (b43_is_mode(wl, NL80211_IFTYPE_AP) || | |
3721 | b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) || | |
3722 | b43_is_mode(wl, NL80211_IFTYPE_ADHOC))) | |
3723 | b43_set_beacon_int(dev, conf->beacon_int); | |
3724 | ||
c7ab5ef9 JB |
3725 | if (changed & BSS_CHANGED_BASIC_RATES) |
3726 | b43_update_basic_rates(dev, conf->basic_rates); | |
3727 | ||
3728 | if (changed & BSS_CHANGED_ERP_SLOT) { | |
3729 | if (conf->use_short_slot) | |
3730 | b43_short_slot_timing_enable(dev); | |
3731 | else | |
3732 | b43_short_slot_timing_disable(dev); | |
3733 | } | |
3734 | ||
3735 | b43_mac_enable(dev); | |
d10d0e57 | 3736 | out_unlock_mutex: |
c7ab5ef9 | 3737 | mutex_unlock(&wl->mutex); |
c7ab5ef9 JB |
3738 | } |
3739 | ||
40faacc4 | 3740 | static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
dc822b5d JB |
3741 | struct ieee80211_vif *vif, struct ieee80211_sta *sta, |
3742 | struct ieee80211_key_conf *key) | |
e4d6b795 MB |
3743 | { |
3744 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
c6dfc9a8 | 3745 | struct b43_wldev *dev; |
e4d6b795 MB |
3746 | u8 algorithm; |
3747 | u8 index; | |
c6dfc9a8 | 3748 | int err; |
060210f9 | 3749 | static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
e4d6b795 MB |
3750 | |
3751 | if (modparam_nohwcrypt) | |
3752 | return -ENOSPC; /* User disabled HW-crypto */ | |
3753 | ||
c6dfc9a8 | 3754 | mutex_lock(&wl->mutex); |
c6dfc9a8 MB |
3755 | |
3756 | dev = wl->current_dev; | |
3757 | err = -ENODEV; | |
3758 | if (!dev || b43_status(dev) < B43_STAT_INITIALIZED) | |
3759 | goto out_unlock; | |
3760 | ||
403a3a13 | 3761 | if (dev->fw.pcm_request_failed || !dev->hwcrypto_enabled) { |
68217832 MB |
3762 | /* We don't have firmware for the crypto engine. |
3763 | * Must use software-crypto. */ | |
3764 | err = -EOPNOTSUPP; | |
3765 | goto out_unlock; | |
3766 | } | |
3767 | ||
c6dfc9a8 | 3768 | err = -EINVAL; |
e4d6b795 | 3769 | switch (key->alg) { |
e4d6b795 | 3770 | case ALG_WEP: |
e31a16d6 | 3771 | if (key->keylen == WLAN_KEY_LEN_WEP40) |
e4d6b795 MB |
3772 | algorithm = B43_SEC_ALGO_WEP40; |
3773 | else | |
3774 | algorithm = B43_SEC_ALGO_WEP104; | |
3775 | break; | |
3776 | case ALG_TKIP: | |
3777 | algorithm = B43_SEC_ALGO_TKIP; | |
3778 | break; | |
3779 | case ALG_CCMP: | |
3780 | algorithm = B43_SEC_ALGO_AES; | |
3781 | break; | |
3782 | default: | |
3783 | B43_WARN_ON(1); | |
c6dfc9a8 | 3784 | goto out_unlock; |
e4d6b795 | 3785 | } |
e4d6b795 MB |
3786 | index = (u8) (key->keyidx); |
3787 | if (index > 3) | |
e4d6b795 | 3788 | goto out_unlock; |
e4d6b795 MB |
3789 | |
3790 | switch (cmd) { | |
3791 | case SET_KEY: | |
035d0243 | 3792 | if (algorithm == B43_SEC_ALGO_TKIP && |
3793 | (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE) || | |
3794 | !modparam_hwtkip)) { | |
3795 | /* We support only pairwise key */ | |
e4d6b795 MB |
3796 | err = -EOPNOTSUPP; |
3797 | goto out_unlock; | |
3798 | } | |
3799 | ||
e808e586 | 3800 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { |
dc822b5d JB |
3801 | if (WARN_ON(!sta)) { |
3802 | err = -EOPNOTSUPP; | |
3803 | goto out_unlock; | |
3804 | } | |
e808e586 | 3805 | /* Pairwise key with an assigned MAC address. */ |
e4d6b795 | 3806 | err = b43_key_write(dev, -1, algorithm, |
dc822b5d JB |
3807 | key->key, key->keylen, |
3808 | sta->addr, key); | |
e808e586 MB |
3809 | } else { |
3810 | /* Group key */ | |
3811 | err = b43_key_write(dev, index, algorithm, | |
3812 | key->key, key->keylen, NULL, key); | |
e4d6b795 MB |
3813 | } |
3814 | if (err) | |
3815 | goto out_unlock; | |
3816 | ||
3817 | if (algorithm == B43_SEC_ALGO_WEP40 || | |
3818 | algorithm == B43_SEC_ALGO_WEP104) { | |
3819 | b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS); | |
3820 | } else { | |
3821 | b43_hf_write(dev, | |
3822 | b43_hf_read(dev) & ~B43_HF_USEDEFKEYS); | |
3823 | } | |
3824 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
035d0243 | 3825 | if (algorithm == B43_SEC_ALGO_TKIP) |
3826 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
e4d6b795 MB |
3827 | break; |
3828 | case DISABLE_KEY: { | |
3829 | err = b43_key_clear(dev, key->hw_key_idx); | |
3830 | if (err) | |
3831 | goto out_unlock; | |
3832 | break; | |
3833 | } | |
3834 | default: | |
3835 | B43_WARN_ON(1); | |
3836 | } | |
9cf7f247 | 3837 | |
e4d6b795 | 3838 | out_unlock: |
e4d6b795 MB |
3839 | if (!err) { |
3840 | b43dbg(wl, "%s hardware based encryption for keyidx: %d, " | |
e174961c | 3841 | "mac: %pM\n", |
e4d6b795 | 3842 | cmd == SET_KEY ? "Using" : "Disabling", key->keyidx, |
a1d88210 | 3843 | sta ? sta->addr : bcast_addr); |
9cf7f247 | 3844 | b43_dump_keymemory(dev); |
e4d6b795 | 3845 | } |
9cf7f247 MB |
3846 | mutex_unlock(&wl->mutex); |
3847 | ||
e4d6b795 MB |
3848 | return err; |
3849 | } | |
3850 | ||
40faacc4 MB |
3851 | static void b43_op_configure_filter(struct ieee80211_hw *hw, |
3852 | unsigned int changed, unsigned int *fflags, | |
3ac64bee | 3853 | u64 multicast) |
e4d6b795 MB |
3854 | { |
3855 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
36dbd954 | 3856 | struct b43_wldev *dev; |
e4d6b795 | 3857 | |
36dbd954 MB |
3858 | mutex_lock(&wl->mutex); |
3859 | dev = wl->current_dev; | |
4150c572 JB |
3860 | if (!dev) { |
3861 | *fflags = 0; | |
36dbd954 | 3862 | goto out_unlock; |
e4d6b795 | 3863 | } |
4150c572 | 3864 | |
4150c572 JB |
3865 | *fflags &= FIF_PROMISC_IN_BSS | |
3866 | FIF_ALLMULTI | | |
3867 | FIF_FCSFAIL | | |
3868 | FIF_PLCPFAIL | | |
3869 | FIF_CONTROL | | |
3870 | FIF_OTHER_BSS | | |
3871 | FIF_BCN_PRBRESP_PROMISC; | |
3872 | ||
3873 | changed &= FIF_PROMISC_IN_BSS | | |
3874 | FIF_ALLMULTI | | |
3875 | FIF_FCSFAIL | | |
3876 | FIF_PLCPFAIL | | |
3877 | FIF_CONTROL | | |
3878 | FIF_OTHER_BSS | | |
3879 | FIF_BCN_PRBRESP_PROMISC; | |
3880 | ||
3881 | wl->filter_flags = *fflags; | |
3882 | ||
3883 | if (changed && b43_status(dev) >= B43_STAT_INITIALIZED) | |
3884 | b43_adjust_opmode(dev); | |
36dbd954 MB |
3885 | |
3886 | out_unlock: | |
3887 | mutex_unlock(&wl->mutex); | |
e4d6b795 MB |
3888 | } |
3889 | ||
36dbd954 MB |
3890 | /* Locking: wl->mutex |
3891 | * Returns the current dev. This might be different from the passed in dev, | |
3892 | * because the core might be gone away while we unlocked the mutex. */ | |
3893 | static struct b43_wldev * b43_wireless_core_stop(struct b43_wldev *dev) | |
e4d6b795 MB |
3894 | { |
3895 | struct b43_wl *wl = dev->wl; | |
36dbd954 | 3896 | struct b43_wldev *orig_dev; |
49d965c8 | 3897 | u32 mask; |
e4d6b795 | 3898 | |
36dbd954 MB |
3899 | redo: |
3900 | if (!dev || b43_status(dev) < B43_STAT_STARTED) | |
3901 | return dev; | |
a19d12d7 | 3902 | |
f5d40eed | 3903 | /* Cancel work. Unlock to avoid deadlocks. */ |
36dbd954 MB |
3904 | mutex_unlock(&wl->mutex); |
3905 | cancel_delayed_work_sync(&dev->periodic_work); | |
f5d40eed | 3906 | cancel_work_sync(&wl->tx_work); |
36dbd954 MB |
3907 | mutex_lock(&wl->mutex); |
3908 | dev = wl->current_dev; | |
3909 | if (!dev || b43_status(dev) < B43_STAT_STARTED) { | |
3910 | /* Whoops, aliens ate up the device while we were unlocked. */ | |
3911 | return dev; | |
3912 | } | |
a19d12d7 | 3913 | |
36dbd954 | 3914 | /* Disable interrupts on the device. */ |
e4d6b795 | 3915 | b43_set_status(dev, B43_STAT_INITIALIZED); |
3dbba8e2 | 3916 | if (dev->dev->bus->bustype == SSB_BUSTYPE_SDIO) { |
36dbd954 MB |
3917 | /* wl->mutex is locked. That is enough. */ |
3918 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0); | |
3919 | b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */ | |
3920 | } else { | |
3921 | spin_lock_irq(&wl->hardirq_lock); | |
3922 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0); | |
3923 | b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* Flush */ | |
3924 | spin_unlock_irq(&wl->hardirq_lock); | |
3925 | } | |
176e9f6a | 3926 | /* Synchronize and free the interrupt handlers. Unlock to avoid deadlocks. */ |
36dbd954 | 3927 | orig_dev = dev; |
e4d6b795 | 3928 | mutex_unlock(&wl->mutex); |
176e9f6a MB |
3929 | if (dev->dev->bus->bustype == SSB_BUSTYPE_SDIO) { |
3930 | b43_sdio_free_irq(dev); | |
3931 | } else { | |
3932 | synchronize_irq(dev->dev->irq); | |
3933 | free_irq(dev->dev->irq, dev); | |
3934 | } | |
e4d6b795 | 3935 | mutex_lock(&wl->mutex); |
36dbd954 MB |
3936 | dev = wl->current_dev; |
3937 | if (!dev) | |
3938 | return dev; | |
3939 | if (dev != orig_dev) { | |
3940 | if (b43_status(dev) >= B43_STAT_STARTED) | |
3941 | goto redo; | |
3942 | return dev; | |
3943 | } | |
49d965c8 MB |
3944 | mask = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); |
3945 | B43_WARN_ON(mask != 0xFFFFFFFF && mask); | |
e4d6b795 | 3946 | |
f5d40eed MB |
3947 | /* Drain the TX queue */ |
3948 | while (skb_queue_len(&wl->tx_queue)) | |
3949 | dev_kfree_skb(skb_dequeue(&wl->tx_queue)); | |
3950 | ||
e4d6b795 | 3951 | b43_mac_suspend(dev); |
a78b3bb2 | 3952 | b43_leds_exit(dev); |
e4d6b795 | 3953 | b43dbg(wl, "Wireless interface stopped\n"); |
36dbd954 MB |
3954 | |
3955 | return dev; | |
e4d6b795 MB |
3956 | } |
3957 | ||
3958 | /* Locking: wl->mutex */ | |
3959 | static int b43_wireless_core_start(struct b43_wldev *dev) | |
3960 | { | |
3961 | int err; | |
3962 | ||
3963 | B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED); | |
3964 | ||
3965 | drain_txstatus_queue(dev); | |
3dbba8e2 AH |
3966 | if (dev->dev->bus->bustype == SSB_BUSTYPE_SDIO) { |
3967 | err = b43_sdio_request_irq(dev, b43_sdio_interrupt_handler); | |
3968 | if (err) { | |
3969 | b43err(dev->wl, "Cannot request SDIO IRQ\n"); | |
3970 | goto out; | |
3971 | } | |
3972 | } else { | |
3973 | err = request_threaded_irq(dev->dev->irq, b43_interrupt_handler, | |
3974 | b43_interrupt_thread_handler, | |
3975 | IRQF_SHARED, KBUILD_MODNAME, dev); | |
3976 | if (err) { | |
3977 | b43err(dev->wl, "Cannot request IRQ-%d\n", dev->dev->irq); | |
3978 | goto out; | |
3979 | } | |
e4d6b795 MB |
3980 | } |
3981 | ||
3982 | /* We are ready to run. */ | |
3983 | b43_set_status(dev, B43_STAT_STARTED); | |
3984 | ||
3985 | /* Start data flow (TX/RX). */ | |
3986 | b43_mac_enable(dev); | |
13790728 | 3987 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); |
e4d6b795 MB |
3988 | |
3989 | /* Start maintainance work */ | |
3990 | b43_periodic_tasks_setup(dev); | |
3991 | ||
a78b3bb2 MB |
3992 | b43_leds_init(dev); |
3993 | ||
e4d6b795 | 3994 | b43dbg(dev->wl, "Wireless interface started\n"); |
a78b3bb2 | 3995 | out: |
e4d6b795 MB |
3996 | return err; |
3997 | } | |
3998 | ||
3999 | /* Get PHY and RADIO versioning numbers */ | |
4000 | static int b43_phy_versioning(struct b43_wldev *dev) | |
4001 | { | |
4002 | struct b43_phy *phy = &dev->phy; | |
4003 | u32 tmp; | |
4004 | u8 analog_type; | |
4005 | u8 phy_type; | |
4006 | u8 phy_rev; | |
4007 | u16 radio_manuf; | |
4008 | u16 radio_ver; | |
4009 | u16 radio_rev; | |
4010 | int unsupported = 0; | |
4011 | ||
4012 | /* Get PHY versioning */ | |
4013 | tmp = b43_read16(dev, B43_MMIO_PHY_VER); | |
4014 | analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT; | |
4015 | phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT; | |
4016 | phy_rev = (tmp & B43_PHYVER_VERSION); | |
4017 | switch (phy_type) { | |
4018 | case B43_PHYTYPE_A: | |
4019 | if (phy_rev >= 4) | |
4020 | unsupported = 1; | |
4021 | break; | |
4022 | case B43_PHYTYPE_B: | |
4023 | if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6 | |
4024 | && phy_rev != 7) | |
4025 | unsupported = 1; | |
4026 | break; | |
4027 | case B43_PHYTYPE_G: | |
013978b6 | 4028 | if (phy_rev > 9) |
e4d6b795 MB |
4029 | unsupported = 1; |
4030 | break; | |
d5c71e46 MB |
4031 | #ifdef CONFIG_B43_NPHY |
4032 | case B43_PHYTYPE_N: | |
bb519bee | 4033 | if (phy_rev > 4) |
d5c71e46 MB |
4034 | unsupported = 1; |
4035 | break; | |
6b1c7c67 MB |
4036 | #endif |
4037 | #ifdef CONFIG_B43_PHY_LP | |
4038 | case B43_PHYTYPE_LP: | |
9d86a2d5 | 4039 | if (phy_rev > 2) |
6b1c7c67 MB |
4040 | unsupported = 1; |
4041 | break; | |
d5c71e46 | 4042 | #endif |
e4d6b795 MB |
4043 | default: |
4044 | unsupported = 1; | |
4045 | }; | |
4046 | if (unsupported) { | |
4047 | b43err(dev->wl, "FOUND UNSUPPORTED PHY " | |
4048 | "(Analog %u, Type %u, Revision %u)\n", | |
4049 | analog_type, phy_type, phy_rev); | |
4050 | return -EOPNOTSUPP; | |
4051 | } | |
4052 | b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n", | |
4053 | analog_type, phy_type, phy_rev); | |
4054 | ||
4055 | /* Get RADIO versioning */ | |
4056 | if (dev->dev->bus->chip_id == 0x4317) { | |
4057 | if (dev->dev->bus->chip_rev == 0) | |
4058 | tmp = 0x3205017F; | |
4059 | else if (dev->dev->bus->chip_rev == 1) | |
4060 | tmp = 0x4205017F; | |
4061 | else | |
4062 | tmp = 0x5205017F; | |
4063 | } else { | |
4064 | b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID); | |
243dcfcc | 4065 | tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW); |
e4d6b795 | 4066 | b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID); |
243dcfcc | 4067 | tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH) << 16; |
e4d6b795 MB |
4068 | } |
4069 | radio_manuf = (tmp & 0x00000FFF); | |
4070 | radio_ver = (tmp & 0x0FFFF000) >> 12; | |
4071 | radio_rev = (tmp & 0xF0000000) >> 28; | |
96c755a3 MB |
4072 | if (radio_manuf != 0x17F /* Broadcom */) |
4073 | unsupported = 1; | |
e4d6b795 MB |
4074 | switch (phy_type) { |
4075 | case B43_PHYTYPE_A: | |
4076 | if (radio_ver != 0x2060) | |
4077 | unsupported = 1; | |
4078 | if (radio_rev != 1) | |
4079 | unsupported = 1; | |
4080 | if (radio_manuf != 0x17F) | |
4081 | unsupported = 1; | |
4082 | break; | |
4083 | case B43_PHYTYPE_B: | |
4084 | if ((radio_ver & 0xFFF0) != 0x2050) | |
4085 | unsupported = 1; | |
4086 | break; | |
4087 | case B43_PHYTYPE_G: | |
4088 | if (radio_ver != 0x2050) | |
4089 | unsupported = 1; | |
4090 | break; | |
96c755a3 | 4091 | case B43_PHYTYPE_N: |
bb519bee | 4092 | if (radio_ver != 0x2055 && radio_ver != 0x2056) |
96c755a3 MB |
4093 | unsupported = 1; |
4094 | break; | |
6b1c7c67 | 4095 | case B43_PHYTYPE_LP: |
9d86a2d5 | 4096 | if (radio_ver != 0x2062 && radio_ver != 0x2063) |
6b1c7c67 MB |
4097 | unsupported = 1; |
4098 | break; | |
e4d6b795 MB |
4099 | default: |
4100 | B43_WARN_ON(1); | |
4101 | } | |
4102 | if (unsupported) { | |
4103 | b43err(dev->wl, "FOUND UNSUPPORTED RADIO " | |
4104 | "(Manuf 0x%X, Version 0x%X, Revision %u)\n", | |
4105 | radio_manuf, radio_ver, radio_rev); | |
4106 | return -EOPNOTSUPP; | |
4107 | } | |
4108 | b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n", | |
4109 | radio_manuf, radio_ver, radio_rev); | |
4110 | ||
4111 | phy->radio_manuf = radio_manuf; | |
4112 | phy->radio_ver = radio_ver; | |
4113 | phy->radio_rev = radio_rev; | |
4114 | ||
4115 | phy->analog = analog_type; | |
4116 | phy->type = phy_type; | |
4117 | phy->rev = phy_rev; | |
4118 | ||
4119 | return 0; | |
4120 | } | |
4121 | ||
4122 | static void setup_struct_phy_for_init(struct b43_wldev *dev, | |
4123 | struct b43_phy *phy) | |
4124 | { | |
e4d6b795 | 4125 | phy->hardware_power_control = !!modparam_hwpctl; |
18c8adeb | 4126 | phy->next_txpwr_check_time = jiffies; |
8ed7fc48 MB |
4127 | /* PHY TX errors counter. */ |
4128 | atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT); | |
591f3dc2 MB |
4129 | |
4130 | #if B43_DEBUG | |
4131 | phy->phy_locked = 0; | |
4132 | phy->radio_locked = 0; | |
4133 | #endif | |
e4d6b795 MB |
4134 | } |
4135 | ||
4136 | static void setup_struct_wldev_for_init(struct b43_wldev *dev) | |
4137 | { | |
aa6c7ae2 MB |
4138 | dev->dfq_valid = 0; |
4139 | ||
6a724d68 MB |
4140 | /* Assume the radio is enabled. If it's not enabled, the state will |
4141 | * immediately get fixed on the first periodic work run. */ | |
4142 | dev->radio_hw_enable = 1; | |
e4d6b795 MB |
4143 | |
4144 | /* Stats */ | |
4145 | memset(&dev->stats, 0, sizeof(dev->stats)); | |
4146 | ||
4147 | setup_struct_phy_for_init(dev, &dev->phy); | |
4148 | ||
4149 | /* IRQ related flags */ | |
4150 | dev->irq_reason = 0; | |
4151 | memset(dev->dma_reason, 0, sizeof(dev->dma_reason)); | |
13790728 | 4152 | dev->irq_mask = B43_IRQ_MASKTEMPLATE; |
3e3ccb3d | 4153 | if (b43_modparam_verbose < B43_VERBOSITY_DEBUG) |
13790728 | 4154 | dev->irq_mask &= ~B43_IRQ_PHY_TXERR; |
e4d6b795 MB |
4155 | |
4156 | dev->mac_suspended = 1; | |
4157 | ||
4158 | /* Noise calculation context */ | |
4159 | memset(&dev->noisecalc, 0, sizeof(dev->noisecalc)); | |
4160 | } | |
4161 | ||
4162 | static void b43_bluetooth_coext_enable(struct b43_wldev *dev) | |
4163 | { | |
4164 | struct ssb_sprom *sprom = &dev->dev->bus->sprom; | |
a259d6a4 | 4165 | u64 hf; |
e4d6b795 | 4166 | |
1855ba78 MB |
4167 | if (!modparam_btcoex) |
4168 | return; | |
95de2841 | 4169 | if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST)) |
e4d6b795 MB |
4170 | return; |
4171 | if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode) | |
4172 | return; | |
4173 | ||
4174 | hf = b43_hf_read(dev); | |
95de2841 | 4175 | if (sprom->boardflags_lo & B43_BFL_BTCMOD) |
e4d6b795 MB |
4176 | hf |= B43_HF_BTCOEXALT; |
4177 | else | |
4178 | hf |= B43_HF_BTCOEX; | |
4179 | b43_hf_write(dev, hf); | |
e4d6b795 MB |
4180 | } |
4181 | ||
4182 | static void b43_bluetooth_coext_disable(struct b43_wldev *dev) | |
1855ba78 MB |
4183 | { |
4184 | if (!modparam_btcoex) | |
4185 | return; | |
4186 | //TODO | |
e4d6b795 MB |
4187 | } |
4188 | ||
4189 | static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev) | |
4190 | { | |
4191 | #ifdef CONFIG_SSB_DRIVER_PCICORE | |
4192 | struct ssb_bus *bus = dev->dev->bus; | |
4193 | u32 tmp; | |
4194 | ||
4195 | if (bus->pcicore.dev && | |
4196 | bus->pcicore.dev->id.coreid == SSB_DEV_PCI && | |
4197 | bus->pcicore.dev->id.revision <= 5) { | |
4198 | /* IMCFGLO timeouts workaround. */ | |
4199 | tmp = ssb_read32(dev->dev, SSB_IMCFGLO); | |
e4d6b795 MB |
4200 | switch (bus->bustype) { |
4201 | case SSB_BUSTYPE_PCI: | |
4202 | case SSB_BUSTYPE_PCMCIA: | |
98a1e2a9 MB |
4203 | tmp &= ~SSB_IMCFGLO_REQTO; |
4204 | tmp &= ~SSB_IMCFGLO_SERTO; | |
e4d6b795 MB |
4205 | tmp |= 0x32; |
4206 | break; | |
4207 | case SSB_BUSTYPE_SSB: | |
98a1e2a9 MB |
4208 | tmp &= ~SSB_IMCFGLO_REQTO; |
4209 | tmp &= ~SSB_IMCFGLO_SERTO; | |
e4d6b795 MB |
4210 | tmp |= 0x53; |
4211 | break; | |
98a1e2a9 MB |
4212 | default: |
4213 | break; | |
e4d6b795 MB |
4214 | } |
4215 | ssb_write32(dev->dev, SSB_IMCFGLO, tmp); | |
4216 | } | |
4217 | #endif /* CONFIG_SSB_DRIVER_PCICORE */ | |
4218 | } | |
4219 | ||
d59f720d MB |
4220 | static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle) |
4221 | { | |
4222 | u16 pu_delay; | |
4223 | ||
4224 | /* The time value is in microseconds. */ | |
4225 | if (dev->phy.type == B43_PHYTYPE_A) | |
4226 | pu_delay = 3700; | |
4227 | else | |
4228 | pu_delay = 1050; | |
05c914fe | 4229 | if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC) || idle) |
d59f720d MB |
4230 | pu_delay = 500; |
4231 | if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8)) | |
4232 | pu_delay = max(pu_delay, (u16)2400); | |
4233 | ||
4234 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay); | |
4235 | } | |
4236 | ||
4237 | /* Set the TSF CFP pre-TargetBeaconTransmissionTime. */ | |
4238 | static void b43_set_pretbtt(struct b43_wldev *dev) | |
4239 | { | |
4240 | u16 pretbtt; | |
4241 | ||
4242 | /* The time value is in microseconds. */ | |
05c914fe | 4243 | if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) { |
d59f720d MB |
4244 | pretbtt = 2; |
4245 | } else { | |
4246 | if (dev->phy.type == B43_PHYTYPE_A) | |
4247 | pretbtt = 120; | |
4248 | else | |
4249 | pretbtt = 250; | |
4250 | } | |
4251 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt); | |
4252 | b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt); | |
4253 | } | |
4254 | ||
e4d6b795 MB |
4255 | /* Shutdown a wireless core */ |
4256 | /* Locking: wl->mutex */ | |
4257 | static void b43_wireless_core_exit(struct b43_wldev *dev) | |
4258 | { | |
1f7d87b0 | 4259 | u32 macctl; |
e4d6b795 | 4260 | |
36dbd954 MB |
4261 | B43_WARN_ON(dev && b43_status(dev) > B43_STAT_INITIALIZED); |
4262 | if (!dev || b43_status(dev) != B43_STAT_INITIALIZED) | |
e4d6b795 MB |
4263 | return; |
4264 | b43_set_status(dev, B43_STAT_UNINIT); | |
4265 | ||
1f7d87b0 MB |
4266 | /* Stop the microcode PSM. */ |
4267 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
4268 | macctl &= ~B43_MACCTL_PSM_RUN; | |
4269 | macctl |= B43_MACCTL_PSM_JMP0; | |
4270 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
4271 | ||
e4d6b795 | 4272 | b43_dma_free(dev); |
5100d5ac | 4273 | b43_pio_free(dev); |
e4d6b795 | 4274 | b43_chip_exit(dev); |
cb24f57f | 4275 | dev->phy.ops->switch_analog(dev, 0); |
e66fee6a MB |
4276 | if (dev->wl->current_beacon) { |
4277 | dev_kfree_skb_any(dev->wl->current_beacon); | |
4278 | dev->wl->current_beacon = NULL; | |
4279 | } | |
4280 | ||
e4d6b795 MB |
4281 | ssb_device_disable(dev->dev, 0); |
4282 | ssb_bus_may_powerdown(dev->dev->bus); | |
4283 | } | |
4284 | ||
4285 | /* Initialize a wireless core */ | |
4286 | static int b43_wireless_core_init(struct b43_wldev *dev) | |
4287 | { | |
e4d6b795 MB |
4288 | struct ssb_bus *bus = dev->dev->bus; |
4289 | struct ssb_sprom *sprom = &bus->sprom; | |
4290 | struct b43_phy *phy = &dev->phy; | |
4291 | int err; | |
a259d6a4 MB |
4292 | u64 hf; |
4293 | u32 tmp; | |
e4d6b795 MB |
4294 | |
4295 | B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT); | |
4296 | ||
4297 | err = ssb_bus_powerup(bus, 0); | |
4298 | if (err) | |
4299 | goto out; | |
4300 | if (!ssb_device_is_enabled(dev->dev)) { | |
4301 | tmp = phy->gmode ? B43_TMSLOW_GMODE : 0; | |
4302 | b43_wireless_core_reset(dev, tmp); | |
4303 | } | |
4304 | ||
fb11137a | 4305 | /* Reset all data structures. */ |
e4d6b795 | 4306 | setup_struct_wldev_for_init(dev); |
fb11137a | 4307 | phy->ops->prepare_structs(dev); |
e4d6b795 MB |
4308 | |
4309 | /* Enable IRQ routing to this device. */ | |
4310 | ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev); | |
4311 | ||
4312 | b43_imcfglo_timeouts_workaround(dev); | |
4313 | b43_bluetooth_coext_disable(dev); | |
fb11137a MB |
4314 | if (phy->ops->prepare_hardware) { |
4315 | err = phy->ops->prepare_hardware(dev); | |
ef1a628d | 4316 | if (err) |
fb11137a | 4317 | goto err_busdown; |
ef1a628d | 4318 | } |
e4d6b795 MB |
4319 | err = b43_chip_init(dev); |
4320 | if (err) | |
fb11137a | 4321 | goto err_busdown; |
e4d6b795 MB |
4322 | b43_shm_write16(dev, B43_SHM_SHARED, |
4323 | B43_SHM_SH_WLCOREREV, dev->dev->id.revision); | |
4324 | hf = b43_hf_read(dev); | |
4325 | if (phy->type == B43_PHYTYPE_G) { | |
4326 | hf |= B43_HF_SYMW; | |
4327 | if (phy->rev == 1) | |
4328 | hf |= B43_HF_GDCW; | |
95de2841 | 4329 | if (sprom->boardflags_lo & B43_BFL_PACTRL) |
e4d6b795 | 4330 | hf |= B43_HF_OFDMPABOOST; |
969d15cf MB |
4331 | } |
4332 | if (phy->radio_ver == 0x2050) { | |
4333 | if (phy->radio_rev == 6) | |
4334 | hf |= B43_HF_4318TSSI; | |
4335 | if (phy->radio_rev < 6) | |
4336 | hf |= B43_HF_VCORECALC; | |
e4d6b795 | 4337 | } |
1cc8f476 MB |
4338 | if (sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW) |
4339 | hf |= B43_HF_DSCRQ; /* Disable slowclock requests from ucode. */ | |
1a77733c | 4340 | #ifdef CONFIG_SSB_DRIVER_PCICORE |
8821905c MB |
4341 | if ((bus->bustype == SSB_BUSTYPE_PCI) && |
4342 | (bus->pcicore.dev->id.revision <= 10)) | |
4343 | hf |= B43_HF_PCISCW; /* PCI slow clock workaround. */ | |
1a77733c | 4344 | #endif |
25d3ef59 | 4345 | hf &= ~B43_HF_SKCFPUP; |
e4d6b795 MB |
4346 | b43_hf_write(dev, hf); |
4347 | ||
74cfdba7 MB |
4348 | b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT, |
4349 | B43_DEFAULT_LONG_RETRY_LIMIT); | |
e4d6b795 MB |
4350 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3); |
4351 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2); | |
4352 | ||
4353 | /* Disable sending probe responses from firmware. | |
4354 | * Setting the MaxTime to one usec will always trigger | |
4355 | * a timeout, so we never send any probe resp. | |
4356 | * A timeout of zero is infinite. */ | |
4357 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1); | |
4358 | ||
4359 | b43_rate_memory_init(dev); | |
5042c507 | 4360 | b43_set_phytxctl_defaults(dev); |
e4d6b795 MB |
4361 | |
4362 | /* Minimum Contention Window */ | |
4363 | if (phy->type == B43_PHYTYPE_B) { | |
4364 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F); | |
4365 | } else { | |
4366 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF); | |
4367 | } | |
4368 | /* Maximum Contention Window */ | |
4369 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF); | |
4370 | ||
3dbba8e2 AH |
4371 | if ((dev->dev->bus->bustype == SSB_BUSTYPE_PCMCIA) || |
4372 | (dev->dev->bus->bustype == SSB_BUSTYPE_SDIO) || | |
b02914af | 4373 | modparam_pio) { |
5100d5ac MB |
4374 | dev->__using_pio_transfers = 1; |
4375 | err = b43_pio_init(dev); | |
4376 | } else { | |
4377 | dev->__using_pio_transfers = 0; | |
4378 | err = b43_dma_init(dev); | |
4379 | } | |
e4d6b795 MB |
4380 | if (err) |
4381 | goto err_chip_exit; | |
03b29773 | 4382 | b43_qos_init(dev); |
d59f720d | 4383 | b43_set_synth_pu_delay(dev, 1); |
e4d6b795 MB |
4384 | b43_bluetooth_coext_enable(dev); |
4385 | ||
1cc8f476 | 4386 | ssb_bus_powerup(bus, !(sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW)); |
4150c572 | 4387 | b43_upload_card_macaddress(dev); |
e4d6b795 | 4388 | b43_security_init(dev); |
e4d6b795 | 4389 | |
5ab9549a | 4390 | ieee80211_wake_queues(dev->wl->hw); |
e4d6b795 | 4391 | |
32f6afd8 MB |
4392 | ieee80211_wake_queues(dev->wl->hw); |
4393 | ||
e4d6b795 MB |
4394 | b43_set_status(dev, B43_STAT_INITIALIZED); |
4395 | ||
1a8d1227 | 4396 | out: |
e4d6b795 MB |
4397 | return err; |
4398 | ||
ef1a628d | 4399 | err_chip_exit: |
e4d6b795 | 4400 | b43_chip_exit(dev); |
ef1a628d | 4401 | err_busdown: |
e4d6b795 MB |
4402 | ssb_bus_may_powerdown(bus); |
4403 | B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT); | |
4404 | return err; | |
4405 | } | |
4406 | ||
40faacc4 | 4407 | static int b43_op_add_interface(struct ieee80211_hw *hw, |
1ed32e4f | 4408 | struct ieee80211_vif *vif) |
e4d6b795 MB |
4409 | { |
4410 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4411 | struct b43_wldev *dev; | |
e4d6b795 | 4412 | int err = -EOPNOTSUPP; |
4150c572 JB |
4413 | |
4414 | /* TODO: allow WDS/AP devices to coexist */ | |
4415 | ||
1ed32e4f JB |
4416 | if (vif->type != NL80211_IFTYPE_AP && |
4417 | vif->type != NL80211_IFTYPE_MESH_POINT && | |
4418 | vif->type != NL80211_IFTYPE_STATION && | |
4419 | vif->type != NL80211_IFTYPE_WDS && | |
4420 | vif->type != NL80211_IFTYPE_ADHOC) | |
4150c572 | 4421 | return -EOPNOTSUPP; |
e4d6b795 MB |
4422 | |
4423 | mutex_lock(&wl->mutex); | |
4150c572 | 4424 | if (wl->operating) |
e4d6b795 MB |
4425 | goto out_mutex_unlock; |
4426 | ||
1ed32e4f | 4427 | b43dbg(wl, "Adding Interface type %d\n", vif->type); |
e4d6b795 MB |
4428 | |
4429 | dev = wl->current_dev; | |
4150c572 | 4430 | wl->operating = 1; |
1ed32e4f JB |
4431 | wl->vif = vif; |
4432 | wl->if_type = vif->type; | |
4433 | memcpy(wl->mac_addr, vif->addr, ETH_ALEN); | |
4150c572 | 4434 | |
4150c572 | 4435 | b43_adjust_opmode(dev); |
d59f720d MB |
4436 | b43_set_pretbtt(dev); |
4437 | b43_set_synth_pu_delay(dev, 0); | |
4150c572 | 4438 | b43_upload_card_macaddress(dev); |
4150c572 JB |
4439 | |
4440 | err = 0; | |
4441 | out_mutex_unlock: | |
4442 | mutex_unlock(&wl->mutex); | |
4443 | ||
4444 | return err; | |
4445 | } | |
4446 | ||
40faacc4 | 4447 | static void b43_op_remove_interface(struct ieee80211_hw *hw, |
1ed32e4f | 4448 | struct ieee80211_vif *vif) |
4150c572 JB |
4449 | { |
4450 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4451 | struct b43_wldev *dev = wl->current_dev; | |
4150c572 | 4452 | |
1ed32e4f | 4453 | b43dbg(wl, "Removing Interface type %d\n", vif->type); |
4150c572 JB |
4454 | |
4455 | mutex_lock(&wl->mutex); | |
4456 | ||
4457 | B43_WARN_ON(!wl->operating); | |
1ed32e4f | 4458 | B43_WARN_ON(wl->vif != vif); |
32bfd35d | 4459 | wl->vif = NULL; |
4150c572 JB |
4460 | |
4461 | wl->operating = 0; | |
4462 | ||
4150c572 JB |
4463 | b43_adjust_opmode(dev); |
4464 | memset(wl->mac_addr, 0, ETH_ALEN); | |
4465 | b43_upload_card_macaddress(dev); | |
4150c572 JB |
4466 | |
4467 | mutex_unlock(&wl->mutex); | |
4468 | } | |
4469 | ||
40faacc4 | 4470 | static int b43_op_start(struct ieee80211_hw *hw) |
4150c572 JB |
4471 | { |
4472 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4473 | struct b43_wldev *dev = wl->current_dev; | |
4474 | int did_init = 0; | |
923403b8 | 4475 | int err = 0; |
4150c572 | 4476 | |
7be1bb6b MB |
4477 | /* Kill all old instance specific information to make sure |
4478 | * the card won't use it in the short timeframe between start | |
4479 | * and mac80211 reconfiguring it. */ | |
4480 | memset(wl->bssid, 0, ETH_ALEN); | |
4481 | memset(wl->mac_addr, 0, ETH_ALEN); | |
4482 | wl->filter_flags = 0; | |
4483 | wl->radiotap_enabled = 0; | |
e6f5b934 | 4484 | b43_qos_clear(wl); |
6b4bec01 MB |
4485 | wl->beacon0_uploaded = 0; |
4486 | wl->beacon1_uploaded = 0; | |
4487 | wl->beacon_templates_virgin = 1; | |
fd4973c5 | 4488 | wl->radio_enabled = 1; |
7be1bb6b | 4489 | |
4150c572 JB |
4490 | mutex_lock(&wl->mutex); |
4491 | ||
e4d6b795 MB |
4492 | if (b43_status(dev) < B43_STAT_INITIALIZED) { |
4493 | err = b43_wireless_core_init(dev); | |
f41f3f37 | 4494 | if (err) |
e4d6b795 MB |
4495 | goto out_mutex_unlock; |
4496 | did_init = 1; | |
4497 | } | |
4150c572 | 4498 | |
e4d6b795 MB |
4499 | if (b43_status(dev) < B43_STAT_STARTED) { |
4500 | err = b43_wireless_core_start(dev); | |
4501 | if (err) { | |
4502 | if (did_init) | |
4503 | b43_wireless_core_exit(dev); | |
4504 | goto out_mutex_unlock; | |
4505 | } | |
4506 | } | |
4507 | ||
f41f3f37 JB |
4508 | /* XXX: only do if device doesn't support rfkill irq */ |
4509 | wiphy_rfkill_start_polling(hw->wiphy); | |
4510 | ||
4150c572 | 4511 | out_mutex_unlock: |
e4d6b795 MB |
4512 | mutex_unlock(&wl->mutex); |
4513 | ||
4514 | return err; | |
4515 | } | |
4516 | ||
40faacc4 | 4517 | static void b43_op_stop(struct ieee80211_hw *hw) |
e4d6b795 MB |
4518 | { |
4519 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4150c572 | 4520 | struct b43_wldev *dev = wl->current_dev; |
e4d6b795 | 4521 | |
a82d9922 | 4522 | cancel_work_sync(&(wl->beacon_update_trigger)); |
1a8d1227 | 4523 | |
e4d6b795 | 4524 | mutex_lock(&wl->mutex); |
36dbd954 MB |
4525 | if (b43_status(dev) >= B43_STAT_STARTED) { |
4526 | dev = b43_wireless_core_stop(dev); | |
4527 | if (!dev) | |
4528 | goto out_unlock; | |
4529 | } | |
4150c572 | 4530 | b43_wireless_core_exit(dev); |
fd4973c5 | 4531 | wl->radio_enabled = 0; |
36dbd954 MB |
4532 | |
4533 | out_unlock: | |
e4d6b795 | 4534 | mutex_unlock(&wl->mutex); |
18c8adeb MB |
4535 | |
4536 | cancel_work_sync(&(wl->txpower_adjust_work)); | |
e4d6b795 MB |
4537 | } |
4538 | ||
17741cdc JB |
4539 | static int b43_op_beacon_set_tim(struct ieee80211_hw *hw, |
4540 | struct ieee80211_sta *sta, bool set) | |
e66fee6a MB |
4541 | { |
4542 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4543 | ||
8f611288 | 4544 | /* FIXME: add locking */ |
9d139c81 | 4545 | b43_update_templates(wl); |
e66fee6a MB |
4546 | |
4547 | return 0; | |
4548 | } | |
4549 | ||
38968d09 JB |
4550 | static void b43_op_sta_notify(struct ieee80211_hw *hw, |
4551 | struct ieee80211_vif *vif, | |
4552 | enum sta_notify_cmd notify_cmd, | |
17741cdc | 4553 | struct ieee80211_sta *sta) |
38968d09 JB |
4554 | { |
4555 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4556 | ||
4557 | B43_WARN_ON(!vif || wl->vif != vif); | |
4558 | } | |
4559 | ||
25d3ef59 MB |
4560 | static void b43_op_sw_scan_start_notifier(struct ieee80211_hw *hw) |
4561 | { | |
4562 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4563 | struct b43_wldev *dev; | |
4564 | ||
4565 | mutex_lock(&wl->mutex); | |
4566 | dev = wl->current_dev; | |
4567 | if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) { | |
4568 | /* Disable CFP update during scan on other channels. */ | |
4569 | b43_hf_write(dev, b43_hf_read(dev) | B43_HF_SKCFPUP); | |
4570 | } | |
4571 | mutex_unlock(&wl->mutex); | |
4572 | } | |
4573 | ||
4574 | static void b43_op_sw_scan_complete_notifier(struct ieee80211_hw *hw) | |
4575 | { | |
4576 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4577 | struct b43_wldev *dev; | |
4578 | ||
4579 | mutex_lock(&wl->mutex); | |
4580 | dev = wl->current_dev; | |
4581 | if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) { | |
4582 | /* Re-enable CFP update. */ | |
4583 | b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_SKCFPUP); | |
4584 | } | |
4585 | mutex_unlock(&wl->mutex); | |
4586 | } | |
4587 | ||
e4d6b795 | 4588 | static const struct ieee80211_ops b43_hw_ops = { |
40faacc4 MB |
4589 | .tx = b43_op_tx, |
4590 | .conf_tx = b43_op_conf_tx, | |
4591 | .add_interface = b43_op_add_interface, | |
4592 | .remove_interface = b43_op_remove_interface, | |
4593 | .config = b43_op_config, | |
c7ab5ef9 | 4594 | .bss_info_changed = b43_op_bss_info_changed, |
40faacc4 MB |
4595 | .configure_filter = b43_op_configure_filter, |
4596 | .set_key = b43_op_set_key, | |
035d0243 | 4597 | .update_tkip_key = b43_op_update_tkip_key, |
40faacc4 MB |
4598 | .get_stats = b43_op_get_stats, |
4599 | .get_tx_stats = b43_op_get_tx_stats, | |
08e87a83 AF |
4600 | .get_tsf = b43_op_get_tsf, |
4601 | .set_tsf = b43_op_set_tsf, | |
40faacc4 MB |
4602 | .start = b43_op_start, |
4603 | .stop = b43_op_stop, | |
e66fee6a | 4604 | .set_tim = b43_op_beacon_set_tim, |
38968d09 | 4605 | .sta_notify = b43_op_sta_notify, |
25d3ef59 MB |
4606 | .sw_scan_start = b43_op_sw_scan_start_notifier, |
4607 | .sw_scan_complete = b43_op_sw_scan_complete_notifier, | |
f41f3f37 | 4608 | .rfkill_poll = b43_rfkill_poll, |
e4d6b795 MB |
4609 | }; |
4610 | ||
4611 | /* Hard-reset the chip. Do not call this directly. | |
4612 | * Use b43_controller_restart() | |
4613 | */ | |
4614 | static void b43_chip_reset(struct work_struct *work) | |
4615 | { | |
4616 | struct b43_wldev *dev = | |
4617 | container_of(work, struct b43_wldev, restart_work); | |
4618 | struct b43_wl *wl = dev->wl; | |
4619 | int err = 0; | |
4620 | int prev_status; | |
4621 | ||
4622 | mutex_lock(&wl->mutex); | |
4623 | ||
4624 | prev_status = b43_status(dev); | |
4625 | /* Bring the device down... */ | |
36dbd954 MB |
4626 | if (prev_status >= B43_STAT_STARTED) { |
4627 | dev = b43_wireless_core_stop(dev); | |
4628 | if (!dev) { | |
4629 | err = -ENODEV; | |
4630 | goto out; | |
4631 | } | |
4632 | } | |
e4d6b795 MB |
4633 | if (prev_status >= B43_STAT_INITIALIZED) |
4634 | b43_wireless_core_exit(dev); | |
4635 | ||
4636 | /* ...and up again. */ | |
4637 | if (prev_status >= B43_STAT_INITIALIZED) { | |
4638 | err = b43_wireless_core_init(dev); | |
4639 | if (err) | |
4640 | goto out; | |
4641 | } | |
4642 | if (prev_status >= B43_STAT_STARTED) { | |
4643 | err = b43_wireless_core_start(dev); | |
4644 | if (err) { | |
4645 | b43_wireless_core_exit(dev); | |
4646 | goto out; | |
4647 | } | |
4648 | } | |
3bf0a32e MB |
4649 | out: |
4650 | if (err) | |
4651 | wl->current_dev = NULL; /* Failed to init the dev. */ | |
e4d6b795 MB |
4652 | mutex_unlock(&wl->mutex); |
4653 | if (err) | |
4654 | b43err(wl, "Controller restart FAILED\n"); | |
4655 | else | |
4656 | b43info(wl, "Controller restarted\n"); | |
4657 | } | |
4658 | ||
bb1eeff1 | 4659 | static int b43_setup_bands(struct b43_wldev *dev, |
96c755a3 | 4660 | bool have_2ghz_phy, bool have_5ghz_phy) |
e4d6b795 MB |
4661 | { |
4662 | struct ieee80211_hw *hw = dev->wl->hw; | |
e4d6b795 | 4663 | |
bb1eeff1 MB |
4664 | if (have_2ghz_phy) |
4665 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz; | |
4666 | if (dev->phy.type == B43_PHYTYPE_N) { | |
4667 | if (have_5ghz_phy) | |
4668 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_nphy; | |
4669 | } else { | |
4670 | if (have_5ghz_phy) | |
4671 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy; | |
4672 | } | |
96c755a3 | 4673 | |
bb1eeff1 MB |
4674 | dev->phy.supports_2ghz = have_2ghz_phy; |
4675 | dev->phy.supports_5ghz = have_5ghz_phy; | |
e4d6b795 MB |
4676 | |
4677 | return 0; | |
4678 | } | |
4679 | ||
4680 | static void b43_wireless_core_detach(struct b43_wldev *dev) | |
4681 | { | |
4682 | /* We release firmware that late to not be required to re-request | |
4683 | * is all the time when we reinit the core. */ | |
4684 | b43_release_firmware(dev); | |
fb11137a | 4685 | b43_phy_free(dev); |
e4d6b795 MB |
4686 | } |
4687 | ||
4688 | static int b43_wireless_core_attach(struct b43_wldev *dev) | |
4689 | { | |
4690 | struct b43_wl *wl = dev->wl; | |
4691 | struct ssb_bus *bus = dev->dev->bus; | |
899110fe | 4692 | struct pci_dev *pdev = (bus->bustype == SSB_BUSTYPE_PCI) ? bus->host_pci : NULL; |
e4d6b795 | 4693 | int err; |
96c755a3 | 4694 | bool have_2ghz_phy = 0, have_5ghz_phy = 0; |
e4d6b795 MB |
4695 | u32 tmp; |
4696 | ||
4697 | /* Do NOT do any device initialization here. | |
4698 | * Do it in wireless_core_init() instead. | |
4699 | * This function is for gathering basic information about the HW, only. | |
4700 | * Also some structs may be set up here. But most likely you want to have | |
4701 | * that in core_init(), too. | |
4702 | */ | |
4703 | ||
4704 | err = ssb_bus_powerup(bus, 0); | |
4705 | if (err) { | |
4706 | b43err(wl, "Bus powerup failed\n"); | |
4707 | goto out; | |
4708 | } | |
4709 | /* Get the PHY type. */ | |
4710 | if (dev->dev->id.revision >= 5) { | |
4711 | u32 tmshigh; | |
4712 | ||
4713 | tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH); | |
96c755a3 MB |
4714 | have_2ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY); |
4715 | have_5ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_5GHZ_PHY); | |
e4d6b795 | 4716 | } else |
96c755a3 | 4717 | B43_WARN_ON(1); |
e4d6b795 | 4718 | |
96c755a3 | 4719 | dev->phy.gmode = have_2ghz_phy; |
fd4973c5 | 4720 | dev->phy.radio_on = 1; |
e4d6b795 MB |
4721 | tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0; |
4722 | b43_wireless_core_reset(dev, tmp); | |
4723 | ||
4724 | err = b43_phy_versioning(dev); | |
4725 | if (err) | |
21954c36 | 4726 | goto err_powerdown; |
e4d6b795 MB |
4727 | /* Check if this device supports multiband. */ |
4728 | if (!pdev || | |
4729 | (pdev->device != 0x4312 && | |
4730 | pdev->device != 0x4319 && pdev->device != 0x4324)) { | |
4731 | /* No multiband support. */ | |
96c755a3 MB |
4732 | have_2ghz_phy = 0; |
4733 | have_5ghz_phy = 0; | |
e4d6b795 MB |
4734 | switch (dev->phy.type) { |
4735 | case B43_PHYTYPE_A: | |
96c755a3 | 4736 | have_5ghz_phy = 1; |
e4d6b795 | 4737 | break; |
9d86a2d5 | 4738 | case B43_PHYTYPE_LP: //FIXME not always! |
86b2892a | 4739 | #if 0 //FIXME enabling 5GHz causes a NULL pointer dereference |
9d86a2d5 | 4740 | have_5ghz_phy = 1; |
86b2892a | 4741 | #endif |
e4d6b795 | 4742 | case B43_PHYTYPE_G: |
96c755a3 MB |
4743 | case B43_PHYTYPE_N: |
4744 | have_2ghz_phy = 1; | |
e4d6b795 MB |
4745 | break; |
4746 | default: | |
4747 | B43_WARN_ON(1); | |
4748 | } | |
4749 | } | |
96c755a3 MB |
4750 | if (dev->phy.type == B43_PHYTYPE_A) { |
4751 | /* FIXME */ | |
4752 | b43err(wl, "IEEE 802.11a devices are unsupported\n"); | |
4753 | err = -EOPNOTSUPP; | |
4754 | goto err_powerdown; | |
4755 | } | |
2e35af14 MB |
4756 | if (1 /* disable A-PHY */) { |
4757 | /* FIXME: For now we disable the A-PHY on multi-PHY devices. */ | |
9d86a2d5 GS |
4758 | if (dev->phy.type != B43_PHYTYPE_N && |
4759 | dev->phy.type != B43_PHYTYPE_LP) { | |
2e35af14 MB |
4760 | have_2ghz_phy = 1; |
4761 | have_5ghz_phy = 0; | |
4762 | } | |
4763 | } | |
4764 | ||
fb11137a MB |
4765 | err = b43_phy_allocate(dev); |
4766 | if (err) | |
4767 | goto err_powerdown; | |
4768 | ||
96c755a3 | 4769 | dev->phy.gmode = have_2ghz_phy; |
e4d6b795 MB |
4770 | tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0; |
4771 | b43_wireless_core_reset(dev, tmp); | |
4772 | ||
4773 | err = b43_validate_chipaccess(dev); | |
4774 | if (err) | |
fb11137a | 4775 | goto err_phy_free; |
bb1eeff1 | 4776 | err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy); |
e4d6b795 | 4777 | if (err) |
fb11137a | 4778 | goto err_phy_free; |
e4d6b795 MB |
4779 | |
4780 | /* Now set some default "current_dev" */ | |
4781 | if (!wl->current_dev) | |
4782 | wl->current_dev = dev; | |
4783 | INIT_WORK(&dev->restart_work, b43_chip_reset); | |
4784 | ||
cb24f57f | 4785 | dev->phy.ops->switch_analog(dev, 0); |
e4d6b795 MB |
4786 | ssb_device_disable(dev->dev, 0); |
4787 | ssb_bus_may_powerdown(bus); | |
4788 | ||
4789 | out: | |
4790 | return err; | |
4791 | ||
fb11137a MB |
4792 | err_phy_free: |
4793 | b43_phy_free(dev); | |
e4d6b795 MB |
4794 | err_powerdown: |
4795 | ssb_bus_may_powerdown(bus); | |
4796 | return err; | |
4797 | } | |
4798 | ||
4799 | static void b43_one_core_detach(struct ssb_device *dev) | |
4800 | { | |
4801 | struct b43_wldev *wldev; | |
4802 | struct b43_wl *wl; | |
4803 | ||
3bf0a32e MB |
4804 | /* Do not cancel ieee80211-workqueue based work here. |
4805 | * See comment in b43_remove(). */ | |
4806 | ||
e4d6b795 MB |
4807 | wldev = ssb_get_drvdata(dev); |
4808 | wl = wldev->wl; | |
e4d6b795 MB |
4809 | b43_debugfs_remove_device(wldev); |
4810 | b43_wireless_core_detach(wldev); | |
4811 | list_del(&wldev->list); | |
4812 | wl->nr_devs--; | |
4813 | ssb_set_drvdata(dev, NULL); | |
4814 | kfree(wldev); | |
4815 | } | |
4816 | ||
4817 | static int b43_one_core_attach(struct ssb_device *dev, struct b43_wl *wl) | |
4818 | { | |
4819 | struct b43_wldev *wldev; | |
4820 | struct pci_dev *pdev; | |
4821 | int err = -ENOMEM; | |
4822 | ||
4823 | if (!list_empty(&wl->devlist)) { | |
4824 | /* We are not the first core on this chip. */ | |
899110fe | 4825 | pdev = (dev->bus->bustype == SSB_BUSTYPE_PCI) ? dev->bus->host_pci : NULL; |
e4d6b795 MB |
4826 | /* Only special chips support more than one wireless |
4827 | * core, although some of the other chips have more than | |
4828 | * one wireless core as well. Check for this and | |
4829 | * bail out early. | |
4830 | */ | |
4831 | if (!pdev || | |
4832 | ((pdev->device != 0x4321) && | |
4833 | (pdev->device != 0x4313) && (pdev->device != 0x431A))) { | |
4834 | b43dbg(wl, "Ignoring unconnected 802.11 core\n"); | |
4835 | return -ENODEV; | |
4836 | } | |
4837 | } | |
4838 | ||
4839 | wldev = kzalloc(sizeof(*wldev), GFP_KERNEL); | |
4840 | if (!wldev) | |
4841 | goto out; | |
4842 | ||
4843 | wldev->dev = dev; | |
4844 | wldev->wl = wl; | |
4845 | b43_set_status(wldev, B43_STAT_UNINIT); | |
4846 | wldev->bad_frames_preempt = modparam_bad_frames_preempt; | |
e4d6b795 MB |
4847 | INIT_LIST_HEAD(&wldev->list); |
4848 | ||
4849 | err = b43_wireless_core_attach(wldev); | |
4850 | if (err) | |
4851 | goto err_kfree_wldev; | |
4852 | ||
4853 | list_add(&wldev->list, &wl->devlist); | |
4854 | wl->nr_devs++; | |
4855 | ssb_set_drvdata(dev, wldev); | |
4856 | b43_debugfs_add_device(wldev); | |
4857 | ||
4858 | out: | |
4859 | return err; | |
4860 | ||
4861 | err_kfree_wldev: | |
4862 | kfree(wldev); | |
4863 | return err; | |
4864 | } | |
4865 | ||
9fc38458 MB |
4866 | #define IS_PDEV(pdev, _vendor, _device, _subvendor, _subdevice) ( \ |
4867 | (pdev->vendor == PCI_VENDOR_ID_##_vendor) && \ | |
4868 | (pdev->device == _device) && \ | |
4869 | (pdev->subsystem_vendor == PCI_VENDOR_ID_##_subvendor) && \ | |
4870 | (pdev->subsystem_device == _subdevice) ) | |
4871 | ||
e4d6b795 MB |
4872 | static void b43_sprom_fixup(struct ssb_bus *bus) |
4873 | { | |
1855ba78 MB |
4874 | struct pci_dev *pdev; |
4875 | ||
e4d6b795 MB |
4876 | /* boardflags workarounds */ |
4877 | if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL && | |
4878 | bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74) | |
95de2841 | 4879 | bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST; |
e4d6b795 MB |
4880 | if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE && |
4881 | bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40) | |
95de2841 | 4882 | bus->sprom.boardflags_lo |= B43_BFL_PACTRL; |
1855ba78 MB |
4883 | if (bus->bustype == SSB_BUSTYPE_PCI) { |
4884 | pdev = bus->host_pci; | |
9fc38458 | 4885 | if (IS_PDEV(pdev, BROADCOM, 0x4318, ASUSTEK, 0x100F) || |
430cd47f | 4886 | IS_PDEV(pdev, BROADCOM, 0x4320, DELL, 0x0003) || |
570bdfb1 | 4887 | IS_PDEV(pdev, BROADCOM, 0x4320, HP, 0x12f8) || |
9fc38458 | 4888 | IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0015) || |
a58d4522 | 4889 | IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0014) || |
3bb91bff LF |
4890 | IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0013) || |
4891 | IS_PDEV(pdev, BROADCOM, 0x4320, MOTOROLA, 0x7010)) | |
1855ba78 MB |
4892 | bus->sprom.boardflags_lo &= ~B43_BFL_BTCOEXIST; |
4893 | } | |
e4d6b795 MB |
4894 | } |
4895 | ||
4896 | static void b43_wireless_exit(struct ssb_device *dev, struct b43_wl *wl) | |
4897 | { | |
4898 | struct ieee80211_hw *hw = wl->hw; | |
4899 | ||
4900 | ssb_set_devtypedata(dev, NULL); | |
4901 | ieee80211_free_hw(hw); | |
4902 | } | |
4903 | ||
4904 | static int b43_wireless_init(struct ssb_device *dev) | |
4905 | { | |
4906 | struct ssb_sprom *sprom = &dev->bus->sprom; | |
4907 | struct ieee80211_hw *hw; | |
4908 | struct b43_wl *wl; | |
4909 | int err = -ENOMEM; | |
4910 | ||
4911 | b43_sprom_fixup(dev->bus); | |
4912 | ||
4913 | hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops); | |
4914 | if (!hw) { | |
4915 | b43err(NULL, "Could not allocate ieee80211 device\n"); | |
4916 | goto out; | |
4917 | } | |
403a3a13 | 4918 | wl = hw_to_b43_wl(hw); |
e4d6b795 MB |
4919 | |
4920 | /* fill hw info */ | |
605a0bd6 | 4921 | hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
566bfe5a BR |
4922 | IEEE80211_HW_SIGNAL_DBM | |
4923 | IEEE80211_HW_NOISE_DBM; | |
4924 | ||
f59ac048 LR |
4925 | hw->wiphy->interface_modes = |
4926 | BIT(NL80211_IFTYPE_AP) | | |
4927 | BIT(NL80211_IFTYPE_MESH_POINT) | | |
4928 | BIT(NL80211_IFTYPE_STATION) | | |
4929 | BIT(NL80211_IFTYPE_WDS) | | |
4930 | BIT(NL80211_IFTYPE_ADHOC); | |
4931 | ||
403a3a13 MB |
4932 | hw->queues = modparam_qos ? 4 : 1; |
4933 | wl->mac80211_initially_registered_queues = hw->queues; | |
e6a9854b | 4934 | hw->max_rates = 2; |
e4d6b795 | 4935 | SET_IEEE80211_DEV(hw, dev->dev); |
95de2841 LF |
4936 | if (is_valid_ether_addr(sprom->et1mac)) |
4937 | SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac); | |
e4d6b795 | 4938 | else |
95de2841 | 4939 | SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac); |
e4d6b795 | 4940 | |
403a3a13 | 4941 | /* Initialize struct b43_wl */ |
e4d6b795 | 4942 | wl->hw = hw; |
e4d6b795 | 4943 | mutex_init(&wl->mutex); |
36dbd954 | 4944 | spin_lock_init(&wl->hardirq_lock); |
e4d6b795 | 4945 | INIT_LIST_HEAD(&wl->devlist); |
a82d9922 | 4946 | INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work); |
18c8adeb | 4947 | INIT_WORK(&wl->txpower_adjust_work, b43_phy_txpower_adjust_work); |
f5d40eed MB |
4948 | INIT_WORK(&wl->tx_work, b43_tx_work); |
4949 | skb_queue_head_init(&wl->tx_queue); | |
e4d6b795 MB |
4950 | |
4951 | ssb_set_devtypedata(dev, wl); | |
060210f9 MB |
4952 | b43info(wl, "Broadcom %04X WLAN found (core revision %u)\n", |
4953 | dev->bus->chip_id, dev->id.revision); | |
e4d6b795 | 4954 | err = 0; |
060210f9 | 4955 | out: |
e4d6b795 MB |
4956 | return err; |
4957 | } | |
4958 | ||
4959 | static int b43_probe(struct ssb_device *dev, const struct ssb_device_id *id) | |
4960 | { | |
4961 | struct b43_wl *wl; | |
4962 | int err; | |
4963 | int first = 0; | |
4964 | ||
4965 | wl = ssb_get_devtypedata(dev); | |
4966 | if (!wl) { | |
4967 | /* Probing the first core. Must setup common struct b43_wl */ | |
4968 | first = 1; | |
4969 | err = b43_wireless_init(dev); | |
4970 | if (err) | |
4971 | goto out; | |
4972 | wl = ssb_get_devtypedata(dev); | |
4973 | B43_WARN_ON(!wl); | |
4974 | } | |
4975 | err = b43_one_core_attach(dev, wl); | |
4976 | if (err) | |
4977 | goto err_wireless_exit; | |
4978 | ||
4979 | if (first) { | |
4980 | err = ieee80211_register_hw(wl->hw); | |
4981 | if (err) | |
4982 | goto err_one_core_detach; | |
a78b3bb2 MB |
4983 | b43_leds_register(wl->current_dev); |
4984 | b43_rng_init(wl); | |
e4d6b795 MB |
4985 | } |
4986 | ||
4987 | out: | |
4988 | return err; | |
4989 | ||
4990 | err_one_core_detach: | |
4991 | b43_one_core_detach(dev); | |
4992 | err_wireless_exit: | |
4993 | if (first) | |
4994 | b43_wireless_exit(dev, wl); | |
4995 | return err; | |
4996 | } | |
4997 | ||
4998 | static void b43_remove(struct ssb_device *dev) | |
4999 | { | |
5000 | struct b43_wl *wl = ssb_get_devtypedata(dev); | |
5001 | struct b43_wldev *wldev = ssb_get_drvdata(dev); | |
5002 | ||
3bf0a32e MB |
5003 | /* We must cancel any work here before unregistering from ieee80211, |
5004 | * as the ieee80211 unreg will destroy the workqueue. */ | |
5005 | cancel_work_sync(&wldev->restart_work); | |
5006 | ||
e4d6b795 | 5007 | B43_WARN_ON(!wl); |
403a3a13 MB |
5008 | if (wl->current_dev == wldev) { |
5009 | /* Restore the queues count before unregistering, because firmware detect | |
5010 | * might have modified it. Restoring is important, so the networking | |
5011 | * stack can properly free resources. */ | |
5012 | wl->hw->queues = wl->mac80211_initially_registered_queues; | |
82905ace | 5013 | b43_leds_stop(wldev); |
e4d6b795 | 5014 | ieee80211_unregister_hw(wl->hw); |
403a3a13 | 5015 | } |
e4d6b795 MB |
5016 | |
5017 | b43_one_core_detach(dev); | |
5018 | ||
5019 | if (list_empty(&wl->devlist)) { | |
a78b3bb2 | 5020 | b43_rng_exit(wl); |
727c9885 | 5021 | b43_leds_unregister(wl); |
e4d6b795 MB |
5022 | /* Last core on the chip unregistered. |
5023 | * We can destroy common struct b43_wl. | |
5024 | */ | |
5025 | b43_wireless_exit(dev, wl); | |
5026 | } | |
5027 | } | |
5028 | ||
5029 | /* Perform a hardware reset. This can be called from any context. */ | |
5030 | void b43_controller_restart(struct b43_wldev *dev, const char *reason) | |
5031 | { | |
5032 | /* Must avoid requeueing, if we are in shutdown. */ | |
5033 | if (b43_status(dev) < B43_STAT_INITIALIZED) | |
5034 | return; | |
5035 | b43info(dev->wl, "Controller RESET (%s) ...\n", reason); | |
42935eca | 5036 | ieee80211_queue_work(dev->wl->hw, &dev->restart_work); |
e4d6b795 MB |
5037 | } |
5038 | ||
e4d6b795 MB |
5039 | static struct ssb_driver b43_ssb_driver = { |
5040 | .name = KBUILD_MODNAME, | |
5041 | .id_table = b43_ssb_tbl, | |
5042 | .probe = b43_probe, | |
5043 | .remove = b43_remove, | |
e4d6b795 MB |
5044 | }; |
5045 | ||
26bc783f MB |
5046 | static void b43_print_driverinfo(void) |
5047 | { | |
5048 | const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "", | |
3dbba8e2 | 5049 | *feat_leds = "", *feat_sdio = ""; |
26bc783f MB |
5050 | |
5051 | #ifdef CONFIG_B43_PCI_AUTOSELECT | |
5052 | feat_pci = "P"; | |
5053 | #endif | |
5054 | #ifdef CONFIG_B43_PCMCIA | |
5055 | feat_pcmcia = "M"; | |
5056 | #endif | |
5057 | #ifdef CONFIG_B43_NPHY | |
5058 | feat_nphy = "N"; | |
5059 | #endif | |
5060 | #ifdef CONFIG_B43_LEDS | |
5061 | feat_leds = "L"; | |
3dbba8e2 AH |
5062 | #endif |
5063 | #ifdef CONFIG_B43_SDIO | |
5064 | feat_sdio = "S"; | |
26bc783f MB |
5065 | #endif |
5066 | printk(KERN_INFO "Broadcom 43xx driver loaded " | |
3dbba8e2 | 5067 | "[ Features: %s%s%s%s%s, Firmware-ID: " |
26bc783f MB |
5068 | B43_SUPPORTED_FIRMWARE_ID " ]\n", |
5069 | feat_pci, feat_pcmcia, feat_nphy, | |
3dbba8e2 | 5070 | feat_leds, feat_sdio); |
26bc783f MB |
5071 | } |
5072 | ||
e4d6b795 MB |
5073 | static int __init b43_init(void) |
5074 | { | |
5075 | int err; | |
5076 | ||
5077 | b43_debugfs_init(); | |
5078 | err = b43_pcmcia_init(); | |
5079 | if (err) | |
5080 | goto err_dfs_exit; | |
3dbba8e2 | 5081 | err = b43_sdio_init(); |
e4d6b795 MB |
5082 | if (err) |
5083 | goto err_pcmcia_exit; | |
3dbba8e2 AH |
5084 | err = ssb_driver_register(&b43_ssb_driver); |
5085 | if (err) | |
5086 | goto err_sdio_exit; | |
26bc783f | 5087 | b43_print_driverinfo(); |
e4d6b795 MB |
5088 | |
5089 | return err; | |
5090 | ||
3dbba8e2 AH |
5091 | err_sdio_exit: |
5092 | b43_sdio_exit(); | |
e4d6b795 MB |
5093 | err_pcmcia_exit: |
5094 | b43_pcmcia_exit(); | |
5095 | err_dfs_exit: | |
5096 | b43_debugfs_exit(); | |
5097 | return err; | |
5098 | } | |
5099 | ||
5100 | static void __exit b43_exit(void) | |
5101 | { | |
5102 | ssb_driver_unregister(&b43_ssb_driver); | |
3dbba8e2 | 5103 | b43_sdio_exit(); |
e4d6b795 MB |
5104 | b43_pcmcia_exit(); |
5105 | b43_debugfs_exit(); | |
5106 | } | |
5107 | ||
5108 | module_init(b43_init) | |
5109 | module_exit(b43_exit) |