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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 | ||
11 | Some parts of the code in this file are derived from the ipw2200 | |
12 | driver Copyright(c) 2003 - 2004 Intel Corporation. | |
13 | ||
14 | This program is free software; you can redistribute it and/or modify | |
15 | it under the terms of the GNU General Public License as published by | |
16 | the Free Software Foundation; either version 2 of the License, or | |
17 | (at your option) any later version. | |
18 | ||
19 | This program is distributed in the hope that it will be useful, | |
20 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | GNU General Public License for more details. | |
23 | ||
24 | You should have received a copy of the GNU General Public License | |
25 | along with this program; see the file COPYING. If not, write to | |
26 | the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, | |
27 | Boston, MA 02110-1301, USA. | |
28 | ||
29 | */ | |
30 | ||
31 | #include <linux/delay.h> | |
32 | #include <linux/init.h> | |
33 | #include <linux/moduleparam.h> | |
34 | #include <linux/if_arp.h> | |
35 | #include <linux/etherdevice.h> | |
e4d6b795 MB |
36 | #include <linux/firmware.h> |
37 | #include <linux/wireless.h> | |
38 | #include <linux/workqueue.h> | |
39 | #include <linux/skbuff.h> | |
96cf49a2 | 40 | #include <linux/io.h> |
e4d6b795 MB |
41 | #include <linux/dma-mapping.h> |
42 | #include <asm/unaligned.h> | |
43 | ||
44 | #include "b43.h" | |
45 | #include "main.h" | |
46 | #include "debugfs.h" | |
ef1a628d MB |
47 | #include "phy_common.h" |
48 | #include "phy_g.h" | |
3d0da751 | 49 | #include "phy_n.h" |
e4d6b795 | 50 | #include "dma.h" |
5100d5ac | 51 | #include "pio.h" |
e4d6b795 MB |
52 | #include "sysfs.h" |
53 | #include "xmit.h" | |
e4d6b795 MB |
54 | #include "lo.h" |
55 | #include "pcmcia.h" | |
56 | ||
57 | MODULE_DESCRIPTION("Broadcom B43 wireless driver"); | |
58 | MODULE_AUTHOR("Martin Langer"); | |
59 | MODULE_AUTHOR("Stefano Brivio"); | |
60 | MODULE_AUTHOR("Michael Buesch"); | |
61 | MODULE_LICENSE("GPL"); | |
62 | ||
9c7d99d6 MB |
63 | MODULE_FIRMWARE(B43_SUPPORTED_FIRMWARE_ID); |
64 | ||
e4d6b795 MB |
65 | |
66 | static int modparam_bad_frames_preempt; | |
67 | module_param_named(bad_frames_preempt, modparam_bad_frames_preempt, int, 0444); | |
68 | MODULE_PARM_DESC(bad_frames_preempt, | |
69 | "enable(1) / disable(0) Bad Frames Preemption"); | |
70 | ||
e4d6b795 MB |
71 | static char modparam_fwpostfix[16]; |
72 | module_param_string(fwpostfix, modparam_fwpostfix, 16, 0444); | |
73 | MODULE_PARM_DESC(fwpostfix, "Postfix for the .fw files to load."); | |
74 | ||
e4d6b795 MB |
75 | static int modparam_hwpctl; |
76 | module_param_named(hwpctl, modparam_hwpctl, int, 0444); | |
77 | MODULE_PARM_DESC(hwpctl, "Enable hardware-side power control (default off)"); | |
78 | ||
79 | static int modparam_nohwcrypt; | |
80 | module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444); | |
81 | MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption."); | |
82 | ||
403a3a13 MB |
83 | static int modparam_qos = 1; |
84 | module_param_named(qos, modparam_qos, int, 0444); | |
e6f5b934 MB |
85 | MODULE_PARM_DESC(qos, "Enable QOS support (default on)"); |
86 | ||
1855ba78 MB |
87 | static int modparam_btcoex = 1; |
88 | module_param_named(btcoex, modparam_btcoex, int, 0444); | |
89 | MODULE_PARM_DESC(btcoex, "Enable Bluetooth coexistance (default on)"); | |
90 | ||
060210f9 MB |
91 | int b43_modparam_verbose = B43_VERBOSITY_DEFAULT; |
92 | module_param_named(verbose, b43_modparam_verbose, int, 0644); | |
93 | MODULE_PARM_DESC(verbose, "Log message verbosity: 0=error, 1=warn, 2=info(default), 3=debug"); | |
94 | ||
e6f5b934 | 95 | |
e4d6b795 MB |
96 | static const struct ssb_device_id b43_ssb_tbl[] = { |
97 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 5), | |
98 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 6), | |
99 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 7), | |
100 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 9), | |
101 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 10), | |
d5c71e46 | 102 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 11), |
013978b6 | 103 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 13), |
6b1c7c67 | 104 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 15), |
92d6128e | 105 | SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_80211, 16), |
e4d6b795 MB |
106 | SSB_DEVTABLE_END |
107 | }; | |
108 | ||
109 | MODULE_DEVICE_TABLE(ssb, b43_ssb_tbl); | |
110 | ||
111 | /* Channel and ratetables are shared for all devices. | |
112 | * They can't be const, because ieee80211 puts some precalculated | |
113 | * data in there. This data is the same for all devices, so we don't | |
114 | * get concurrency issues */ | |
115 | #define RATETAB_ENT(_rateid, _flags) \ | |
8318d78a JB |
116 | { \ |
117 | .bitrate = B43_RATE_TO_BASE100KBPS(_rateid), \ | |
118 | .hw_value = (_rateid), \ | |
119 | .flags = (_flags), \ | |
e4d6b795 | 120 | } |
8318d78a JB |
121 | |
122 | /* | |
123 | * NOTE: When changing this, sync with xmit.c's | |
124 | * b43_plcp_get_bitrate_idx_* functions! | |
125 | */ | |
e4d6b795 | 126 | static struct ieee80211_rate __b43_ratetable[] = { |
8318d78a JB |
127 | RATETAB_ENT(B43_CCK_RATE_1MB, 0), |
128 | RATETAB_ENT(B43_CCK_RATE_2MB, IEEE80211_RATE_SHORT_PREAMBLE), | |
129 | RATETAB_ENT(B43_CCK_RATE_5MB, IEEE80211_RATE_SHORT_PREAMBLE), | |
130 | RATETAB_ENT(B43_CCK_RATE_11MB, IEEE80211_RATE_SHORT_PREAMBLE), | |
131 | RATETAB_ENT(B43_OFDM_RATE_6MB, 0), | |
132 | RATETAB_ENT(B43_OFDM_RATE_9MB, 0), | |
133 | RATETAB_ENT(B43_OFDM_RATE_12MB, 0), | |
134 | RATETAB_ENT(B43_OFDM_RATE_18MB, 0), | |
135 | RATETAB_ENT(B43_OFDM_RATE_24MB, 0), | |
136 | RATETAB_ENT(B43_OFDM_RATE_36MB, 0), | |
137 | RATETAB_ENT(B43_OFDM_RATE_48MB, 0), | |
138 | RATETAB_ENT(B43_OFDM_RATE_54MB, 0), | |
e4d6b795 MB |
139 | }; |
140 | ||
141 | #define b43_a_ratetable (__b43_ratetable + 4) | |
142 | #define b43_a_ratetable_size 8 | |
143 | #define b43_b_ratetable (__b43_ratetable + 0) | |
144 | #define b43_b_ratetable_size 4 | |
145 | #define b43_g_ratetable (__b43_ratetable + 0) | |
146 | #define b43_g_ratetable_size 12 | |
147 | ||
bb1eeff1 MB |
148 | #define CHAN4G(_channel, _freq, _flags) { \ |
149 | .band = IEEE80211_BAND_2GHZ, \ | |
150 | .center_freq = (_freq), \ | |
151 | .hw_value = (_channel), \ | |
152 | .flags = (_flags), \ | |
153 | .max_antenna_gain = 0, \ | |
154 | .max_power = 30, \ | |
155 | } | |
96c755a3 | 156 | static struct ieee80211_channel b43_2ghz_chantable[] = { |
bb1eeff1 MB |
157 | CHAN4G(1, 2412, 0), |
158 | CHAN4G(2, 2417, 0), | |
159 | CHAN4G(3, 2422, 0), | |
160 | CHAN4G(4, 2427, 0), | |
161 | CHAN4G(5, 2432, 0), | |
162 | CHAN4G(6, 2437, 0), | |
163 | CHAN4G(7, 2442, 0), | |
164 | CHAN4G(8, 2447, 0), | |
165 | CHAN4G(9, 2452, 0), | |
166 | CHAN4G(10, 2457, 0), | |
167 | CHAN4G(11, 2462, 0), | |
168 | CHAN4G(12, 2467, 0), | |
169 | CHAN4G(13, 2472, 0), | |
170 | CHAN4G(14, 2484, 0), | |
171 | }; | |
172 | #undef CHAN4G | |
173 | ||
174 | #define CHAN5G(_channel, _flags) { \ | |
175 | .band = IEEE80211_BAND_5GHZ, \ | |
176 | .center_freq = 5000 + (5 * (_channel)), \ | |
177 | .hw_value = (_channel), \ | |
178 | .flags = (_flags), \ | |
179 | .max_antenna_gain = 0, \ | |
180 | .max_power = 30, \ | |
181 | } | |
182 | static struct ieee80211_channel b43_5ghz_nphy_chantable[] = { | |
183 | CHAN5G(32, 0), CHAN5G(34, 0), | |
184 | CHAN5G(36, 0), CHAN5G(38, 0), | |
185 | CHAN5G(40, 0), CHAN5G(42, 0), | |
186 | CHAN5G(44, 0), CHAN5G(46, 0), | |
187 | CHAN5G(48, 0), CHAN5G(50, 0), | |
188 | CHAN5G(52, 0), CHAN5G(54, 0), | |
189 | CHAN5G(56, 0), CHAN5G(58, 0), | |
190 | CHAN5G(60, 0), CHAN5G(62, 0), | |
191 | CHAN5G(64, 0), CHAN5G(66, 0), | |
192 | CHAN5G(68, 0), CHAN5G(70, 0), | |
193 | CHAN5G(72, 0), CHAN5G(74, 0), | |
194 | CHAN5G(76, 0), CHAN5G(78, 0), | |
195 | CHAN5G(80, 0), CHAN5G(82, 0), | |
196 | CHAN5G(84, 0), CHAN5G(86, 0), | |
197 | CHAN5G(88, 0), CHAN5G(90, 0), | |
198 | CHAN5G(92, 0), CHAN5G(94, 0), | |
199 | CHAN5G(96, 0), CHAN5G(98, 0), | |
200 | CHAN5G(100, 0), CHAN5G(102, 0), | |
201 | CHAN5G(104, 0), CHAN5G(106, 0), | |
202 | CHAN5G(108, 0), CHAN5G(110, 0), | |
203 | CHAN5G(112, 0), CHAN5G(114, 0), | |
204 | CHAN5G(116, 0), CHAN5G(118, 0), | |
205 | CHAN5G(120, 0), CHAN5G(122, 0), | |
206 | CHAN5G(124, 0), CHAN5G(126, 0), | |
207 | CHAN5G(128, 0), CHAN5G(130, 0), | |
208 | CHAN5G(132, 0), CHAN5G(134, 0), | |
209 | CHAN5G(136, 0), CHAN5G(138, 0), | |
210 | CHAN5G(140, 0), CHAN5G(142, 0), | |
211 | CHAN5G(144, 0), CHAN5G(145, 0), | |
212 | CHAN5G(146, 0), CHAN5G(147, 0), | |
213 | CHAN5G(148, 0), CHAN5G(149, 0), | |
214 | CHAN5G(150, 0), CHAN5G(151, 0), | |
215 | CHAN5G(152, 0), CHAN5G(153, 0), | |
216 | CHAN5G(154, 0), CHAN5G(155, 0), | |
217 | CHAN5G(156, 0), CHAN5G(157, 0), | |
218 | CHAN5G(158, 0), CHAN5G(159, 0), | |
219 | CHAN5G(160, 0), CHAN5G(161, 0), | |
220 | CHAN5G(162, 0), CHAN5G(163, 0), | |
221 | CHAN5G(164, 0), CHAN5G(165, 0), | |
222 | CHAN5G(166, 0), CHAN5G(168, 0), | |
223 | CHAN5G(170, 0), CHAN5G(172, 0), | |
224 | CHAN5G(174, 0), CHAN5G(176, 0), | |
225 | CHAN5G(178, 0), CHAN5G(180, 0), | |
226 | CHAN5G(182, 0), CHAN5G(184, 0), | |
227 | CHAN5G(186, 0), CHAN5G(188, 0), | |
228 | CHAN5G(190, 0), CHAN5G(192, 0), | |
229 | CHAN5G(194, 0), CHAN5G(196, 0), | |
230 | CHAN5G(198, 0), CHAN5G(200, 0), | |
231 | CHAN5G(202, 0), CHAN5G(204, 0), | |
232 | CHAN5G(206, 0), CHAN5G(208, 0), | |
233 | CHAN5G(210, 0), CHAN5G(212, 0), | |
234 | CHAN5G(214, 0), CHAN5G(216, 0), | |
235 | CHAN5G(218, 0), CHAN5G(220, 0), | |
236 | CHAN5G(222, 0), CHAN5G(224, 0), | |
237 | CHAN5G(226, 0), CHAN5G(228, 0), | |
e4d6b795 MB |
238 | }; |
239 | ||
bb1eeff1 MB |
240 | static struct ieee80211_channel b43_5ghz_aphy_chantable[] = { |
241 | CHAN5G(34, 0), CHAN5G(36, 0), | |
242 | CHAN5G(38, 0), CHAN5G(40, 0), | |
243 | CHAN5G(42, 0), CHAN5G(44, 0), | |
244 | CHAN5G(46, 0), CHAN5G(48, 0), | |
245 | CHAN5G(52, 0), CHAN5G(56, 0), | |
246 | CHAN5G(60, 0), CHAN5G(64, 0), | |
247 | CHAN5G(100, 0), CHAN5G(104, 0), | |
248 | CHAN5G(108, 0), CHAN5G(112, 0), | |
249 | CHAN5G(116, 0), CHAN5G(120, 0), | |
250 | CHAN5G(124, 0), CHAN5G(128, 0), | |
251 | CHAN5G(132, 0), CHAN5G(136, 0), | |
252 | CHAN5G(140, 0), CHAN5G(149, 0), | |
253 | CHAN5G(153, 0), CHAN5G(157, 0), | |
254 | CHAN5G(161, 0), CHAN5G(165, 0), | |
255 | CHAN5G(184, 0), CHAN5G(188, 0), | |
256 | CHAN5G(192, 0), CHAN5G(196, 0), | |
257 | CHAN5G(200, 0), CHAN5G(204, 0), | |
258 | CHAN5G(208, 0), CHAN5G(212, 0), | |
259 | CHAN5G(216, 0), | |
260 | }; | |
261 | #undef CHAN5G | |
262 | ||
263 | static struct ieee80211_supported_band b43_band_5GHz_nphy = { | |
264 | .band = IEEE80211_BAND_5GHZ, | |
265 | .channels = b43_5ghz_nphy_chantable, | |
266 | .n_channels = ARRAY_SIZE(b43_5ghz_nphy_chantable), | |
267 | .bitrates = b43_a_ratetable, | |
268 | .n_bitrates = b43_a_ratetable_size, | |
e4d6b795 | 269 | }; |
8318d78a | 270 | |
bb1eeff1 MB |
271 | static struct ieee80211_supported_band b43_band_5GHz_aphy = { |
272 | .band = IEEE80211_BAND_5GHZ, | |
273 | .channels = b43_5ghz_aphy_chantable, | |
274 | .n_channels = ARRAY_SIZE(b43_5ghz_aphy_chantable), | |
275 | .bitrates = b43_a_ratetable, | |
276 | .n_bitrates = b43_a_ratetable_size, | |
8318d78a | 277 | }; |
e4d6b795 | 278 | |
8318d78a | 279 | static struct ieee80211_supported_band b43_band_2GHz = { |
bb1eeff1 MB |
280 | .band = IEEE80211_BAND_2GHZ, |
281 | .channels = b43_2ghz_chantable, | |
282 | .n_channels = ARRAY_SIZE(b43_2ghz_chantable), | |
283 | .bitrates = b43_g_ratetable, | |
284 | .n_bitrates = b43_g_ratetable_size, | |
8318d78a JB |
285 | }; |
286 | ||
e4d6b795 MB |
287 | static void b43_wireless_core_exit(struct b43_wldev *dev); |
288 | static int b43_wireless_core_init(struct b43_wldev *dev); | |
289 | static void b43_wireless_core_stop(struct b43_wldev *dev); | |
290 | static int b43_wireless_core_start(struct b43_wldev *dev); | |
291 | ||
292 | static int b43_ratelimit(struct b43_wl *wl) | |
293 | { | |
294 | if (!wl || !wl->current_dev) | |
295 | return 1; | |
296 | if (b43_status(wl->current_dev) < B43_STAT_STARTED) | |
297 | return 1; | |
298 | /* We are up and running. | |
299 | * Ratelimit the messages to avoid DoS over the net. */ | |
300 | return net_ratelimit(); | |
301 | } | |
302 | ||
303 | void b43info(struct b43_wl *wl, const char *fmt, ...) | |
304 | { | |
305 | va_list args; | |
306 | ||
060210f9 MB |
307 | if (b43_modparam_verbose < B43_VERBOSITY_INFO) |
308 | return; | |
e4d6b795 MB |
309 | if (!b43_ratelimit(wl)) |
310 | return; | |
311 | va_start(args, fmt); | |
312 | printk(KERN_INFO "b43-%s: ", | |
313 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); | |
314 | vprintk(fmt, args); | |
315 | va_end(args); | |
316 | } | |
317 | ||
318 | void b43err(struct b43_wl *wl, const char *fmt, ...) | |
319 | { | |
320 | va_list args; | |
321 | ||
060210f9 MB |
322 | if (b43_modparam_verbose < B43_VERBOSITY_ERROR) |
323 | return; | |
e4d6b795 MB |
324 | if (!b43_ratelimit(wl)) |
325 | return; | |
326 | va_start(args, fmt); | |
327 | printk(KERN_ERR "b43-%s ERROR: ", | |
328 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); | |
329 | vprintk(fmt, args); | |
330 | va_end(args); | |
331 | } | |
332 | ||
333 | void b43warn(struct b43_wl *wl, const char *fmt, ...) | |
334 | { | |
335 | va_list args; | |
336 | ||
060210f9 MB |
337 | if (b43_modparam_verbose < B43_VERBOSITY_WARN) |
338 | return; | |
e4d6b795 MB |
339 | if (!b43_ratelimit(wl)) |
340 | return; | |
341 | va_start(args, fmt); | |
342 | printk(KERN_WARNING "b43-%s warning: ", | |
343 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); | |
344 | vprintk(fmt, args); | |
345 | va_end(args); | |
346 | } | |
347 | ||
e4d6b795 MB |
348 | void b43dbg(struct b43_wl *wl, const char *fmt, ...) |
349 | { | |
350 | va_list args; | |
351 | ||
060210f9 MB |
352 | if (b43_modparam_verbose < B43_VERBOSITY_DEBUG) |
353 | return; | |
e4d6b795 MB |
354 | va_start(args, fmt); |
355 | printk(KERN_DEBUG "b43-%s debug: ", | |
356 | (wl && wl->hw) ? wiphy_name(wl->hw->wiphy) : "wlan"); | |
357 | vprintk(fmt, args); | |
358 | va_end(args); | |
359 | } | |
e4d6b795 MB |
360 | |
361 | static void b43_ram_write(struct b43_wldev *dev, u16 offset, u32 val) | |
362 | { | |
363 | u32 macctl; | |
364 | ||
365 | B43_WARN_ON(offset % 4 != 0); | |
366 | ||
367 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
368 | if (macctl & B43_MACCTL_BE) | |
369 | val = swab32(val); | |
370 | ||
371 | b43_write32(dev, B43_MMIO_RAM_CONTROL, offset); | |
372 | mmiowb(); | |
373 | b43_write32(dev, B43_MMIO_RAM_DATA, val); | |
374 | } | |
375 | ||
280d0e16 MB |
376 | static inline void b43_shm_control_word(struct b43_wldev *dev, |
377 | u16 routing, u16 offset) | |
e4d6b795 MB |
378 | { |
379 | u32 control; | |
380 | ||
381 | /* "offset" is the WORD offset. */ | |
e4d6b795 MB |
382 | control = routing; |
383 | control <<= 16; | |
384 | control |= offset; | |
385 | b43_write32(dev, B43_MMIO_SHM_CONTROL, control); | |
386 | } | |
387 | ||
6bbc321a | 388 | u32 __b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset) |
e4d6b795 MB |
389 | { |
390 | u32 ret; | |
391 | ||
392 | if (routing == B43_SHM_SHARED) { | |
393 | B43_WARN_ON(offset & 0x0001); | |
394 | if (offset & 0x0003) { | |
395 | /* Unaligned access */ | |
396 | b43_shm_control_word(dev, routing, offset >> 2); | |
397 | ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED); | |
398 | ret <<= 16; | |
399 | b43_shm_control_word(dev, routing, (offset >> 2) + 1); | |
400 | ret |= b43_read16(dev, B43_MMIO_SHM_DATA); | |
401 | ||
280d0e16 | 402 | goto out; |
e4d6b795 MB |
403 | } |
404 | offset >>= 2; | |
405 | } | |
406 | b43_shm_control_word(dev, routing, offset); | |
407 | ret = b43_read32(dev, B43_MMIO_SHM_DATA); | |
280d0e16 | 408 | out: |
e4d6b795 MB |
409 | return ret; |
410 | } | |
411 | ||
6bbc321a | 412 | u32 b43_shm_read32(struct b43_wldev *dev, u16 routing, u16 offset) |
e4d6b795 | 413 | { |
280d0e16 MB |
414 | struct b43_wl *wl = dev->wl; |
415 | unsigned long flags; | |
6bbc321a | 416 | u32 ret; |
e4d6b795 | 417 | |
280d0e16 | 418 | spin_lock_irqsave(&wl->shm_lock, flags); |
6bbc321a MB |
419 | ret = __b43_shm_read32(dev, routing, offset); |
420 | spin_unlock_irqrestore(&wl->shm_lock, flags); | |
421 | ||
422 | return ret; | |
423 | } | |
424 | ||
425 | u16 __b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset) | |
426 | { | |
427 | u16 ret; | |
428 | ||
e4d6b795 MB |
429 | if (routing == B43_SHM_SHARED) { |
430 | B43_WARN_ON(offset & 0x0001); | |
431 | if (offset & 0x0003) { | |
432 | /* Unaligned access */ | |
433 | b43_shm_control_word(dev, routing, offset >> 2); | |
434 | ret = b43_read16(dev, B43_MMIO_SHM_DATA_UNALIGNED); | |
435 | ||
280d0e16 | 436 | goto out; |
e4d6b795 MB |
437 | } |
438 | offset >>= 2; | |
439 | } | |
440 | b43_shm_control_word(dev, routing, offset); | |
441 | ret = b43_read16(dev, B43_MMIO_SHM_DATA); | |
280d0e16 | 442 | out: |
e4d6b795 MB |
443 | return ret; |
444 | } | |
445 | ||
6bbc321a | 446 | u16 b43_shm_read16(struct b43_wldev *dev, u16 routing, u16 offset) |
e4d6b795 | 447 | { |
280d0e16 MB |
448 | struct b43_wl *wl = dev->wl; |
449 | unsigned long flags; | |
6bbc321a | 450 | u16 ret; |
280d0e16 MB |
451 | |
452 | spin_lock_irqsave(&wl->shm_lock, flags); | |
6bbc321a MB |
453 | ret = __b43_shm_read16(dev, routing, offset); |
454 | spin_unlock_irqrestore(&wl->shm_lock, flags); | |
455 | ||
456 | return ret; | |
457 | } | |
458 | ||
459 | void __b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value) | |
460 | { | |
e4d6b795 MB |
461 | if (routing == B43_SHM_SHARED) { |
462 | B43_WARN_ON(offset & 0x0001); | |
463 | if (offset & 0x0003) { | |
464 | /* Unaligned access */ | |
465 | b43_shm_control_word(dev, routing, offset >> 2); | |
e4d6b795 MB |
466 | b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, |
467 | (value >> 16) & 0xffff); | |
e4d6b795 | 468 | b43_shm_control_word(dev, routing, (offset >> 2) + 1); |
e4d6b795 | 469 | b43_write16(dev, B43_MMIO_SHM_DATA, value & 0xffff); |
6bbc321a | 470 | return; |
e4d6b795 MB |
471 | } |
472 | offset >>= 2; | |
473 | } | |
474 | b43_shm_control_word(dev, routing, offset); | |
e4d6b795 MB |
475 | b43_write32(dev, B43_MMIO_SHM_DATA, value); |
476 | } | |
477 | ||
6bbc321a | 478 | void b43_shm_write32(struct b43_wldev *dev, u16 routing, u16 offset, u32 value) |
e4d6b795 | 479 | { |
280d0e16 MB |
480 | struct b43_wl *wl = dev->wl; |
481 | unsigned long flags; | |
482 | ||
483 | spin_lock_irqsave(&wl->shm_lock, flags); | |
6bbc321a MB |
484 | __b43_shm_write32(dev, routing, offset, value); |
485 | spin_unlock_irqrestore(&wl->shm_lock, flags); | |
486 | } | |
487 | ||
488 | void __b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value) | |
489 | { | |
e4d6b795 MB |
490 | if (routing == B43_SHM_SHARED) { |
491 | B43_WARN_ON(offset & 0x0001); | |
492 | if (offset & 0x0003) { | |
493 | /* Unaligned access */ | |
494 | b43_shm_control_word(dev, routing, offset >> 2); | |
e4d6b795 | 495 | b43_write16(dev, B43_MMIO_SHM_DATA_UNALIGNED, value); |
6bbc321a | 496 | return; |
e4d6b795 MB |
497 | } |
498 | offset >>= 2; | |
499 | } | |
500 | b43_shm_control_word(dev, routing, offset); | |
e4d6b795 | 501 | b43_write16(dev, B43_MMIO_SHM_DATA, value); |
6bbc321a MB |
502 | } |
503 | ||
504 | void b43_shm_write16(struct b43_wldev *dev, u16 routing, u16 offset, u16 value) | |
505 | { | |
506 | struct b43_wl *wl = dev->wl; | |
507 | unsigned long flags; | |
508 | ||
509 | spin_lock_irqsave(&wl->shm_lock, flags); | |
510 | __b43_shm_write16(dev, routing, offset, value); | |
280d0e16 | 511 | spin_unlock_irqrestore(&wl->shm_lock, flags); |
e4d6b795 MB |
512 | } |
513 | ||
514 | /* Read HostFlags */ | |
99da185a | 515 | u64 b43_hf_read(struct b43_wldev *dev) |
e4d6b795 | 516 | { |
35f0d354 | 517 | u64 ret; |
e4d6b795 MB |
518 | |
519 | ret = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI); | |
520 | ret <<= 16; | |
35f0d354 MB |
521 | ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI); |
522 | ret <<= 16; | |
e4d6b795 MB |
523 | ret |= b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO); |
524 | ||
525 | return ret; | |
526 | } | |
527 | ||
528 | /* Write HostFlags */ | |
35f0d354 | 529 | void b43_hf_write(struct b43_wldev *dev, u64 value) |
e4d6b795 | 530 | { |
35f0d354 MB |
531 | u16 lo, mi, hi; |
532 | ||
533 | lo = (value & 0x00000000FFFFULL); | |
534 | mi = (value & 0x0000FFFF0000ULL) >> 16; | |
535 | hi = (value & 0xFFFF00000000ULL) >> 32; | |
536 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFLO, lo); | |
537 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFMI, mi); | |
538 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_HOSTFHI, hi); | |
e4d6b795 MB |
539 | } |
540 | ||
403a3a13 MB |
541 | /* Read the firmware capabilities bitmask (Opensource firmware only) */ |
542 | static u16 b43_fwcapa_read(struct b43_wldev *dev) | |
543 | { | |
544 | B43_WARN_ON(!dev->fw.opensource); | |
545 | return b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_FWCAPA); | |
546 | } | |
547 | ||
3ebbbb56 | 548 | void b43_tsf_read(struct b43_wldev *dev, u64 *tsf) |
e4d6b795 | 549 | { |
3ebbbb56 MB |
550 | u32 low, high; |
551 | ||
552 | B43_WARN_ON(dev->dev->id.revision < 3); | |
553 | ||
554 | /* The hardware guarantees us an atomic read, if we | |
555 | * read the low register first. */ | |
556 | low = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_LOW); | |
557 | high = b43_read32(dev, B43_MMIO_REV3PLUS_TSF_HIGH); | |
558 | ||
559 | *tsf = high; | |
560 | *tsf <<= 32; | |
561 | *tsf |= low; | |
e4d6b795 MB |
562 | } |
563 | ||
564 | static void b43_time_lock(struct b43_wldev *dev) | |
565 | { | |
566 | u32 macctl; | |
567 | ||
568 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
569 | macctl |= B43_MACCTL_TBTTHOLD; | |
570 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
571 | /* Commit the write */ | |
572 | b43_read32(dev, B43_MMIO_MACCTL); | |
573 | } | |
574 | ||
575 | static void b43_time_unlock(struct b43_wldev *dev) | |
576 | { | |
577 | u32 macctl; | |
578 | ||
579 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
580 | macctl &= ~B43_MACCTL_TBTTHOLD; | |
581 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
582 | /* Commit the write */ | |
583 | b43_read32(dev, B43_MMIO_MACCTL); | |
584 | } | |
585 | ||
586 | static void b43_tsf_write_locked(struct b43_wldev *dev, u64 tsf) | |
587 | { | |
3ebbbb56 MB |
588 | u32 low, high; |
589 | ||
590 | B43_WARN_ON(dev->dev->id.revision < 3); | |
591 | ||
592 | low = tsf; | |
593 | high = (tsf >> 32); | |
594 | /* The hardware guarantees us an atomic write, if we | |
595 | * write the low register first. */ | |
596 | b43_write32(dev, B43_MMIO_REV3PLUS_TSF_LOW, low); | |
597 | mmiowb(); | |
598 | b43_write32(dev, B43_MMIO_REV3PLUS_TSF_HIGH, high); | |
599 | mmiowb(); | |
e4d6b795 MB |
600 | } |
601 | ||
602 | void b43_tsf_write(struct b43_wldev *dev, u64 tsf) | |
603 | { | |
604 | b43_time_lock(dev); | |
605 | b43_tsf_write_locked(dev, tsf); | |
606 | b43_time_unlock(dev); | |
607 | } | |
608 | ||
609 | static | |
99da185a | 610 | void b43_macfilter_set(struct b43_wldev *dev, u16 offset, const u8 *mac) |
e4d6b795 MB |
611 | { |
612 | static const u8 zero_addr[ETH_ALEN] = { 0 }; | |
613 | u16 data; | |
614 | ||
615 | if (!mac) | |
616 | mac = zero_addr; | |
617 | ||
618 | offset |= 0x0020; | |
619 | b43_write16(dev, B43_MMIO_MACFILTER_CONTROL, offset); | |
620 | ||
621 | data = mac[0]; | |
622 | data |= mac[1] << 8; | |
623 | b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); | |
624 | data = mac[2]; | |
625 | data |= mac[3] << 8; | |
626 | b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); | |
627 | data = mac[4]; | |
628 | data |= mac[5] << 8; | |
629 | b43_write16(dev, B43_MMIO_MACFILTER_DATA, data); | |
630 | } | |
631 | ||
632 | static void b43_write_mac_bssid_templates(struct b43_wldev *dev) | |
633 | { | |
634 | const u8 *mac; | |
635 | const u8 *bssid; | |
636 | u8 mac_bssid[ETH_ALEN * 2]; | |
637 | int i; | |
638 | u32 tmp; | |
639 | ||
640 | bssid = dev->wl->bssid; | |
641 | mac = dev->wl->mac_addr; | |
642 | ||
643 | b43_macfilter_set(dev, B43_MACFILTER_BSSID, bssid); | |
644 | ||
645 | memcpy(mac_bssid, mac, ETH_ALEN); | |
646 | memcpy(mac_bssid + ETH_ALEN, bssid, ETH_ALEN); | |
647 | ||
648 | /* Write our MAC address and BSSID to template ram */ | |
649 | for (i = 0; i < ARRAY_SIZE(mac_bssid); i += sizeof(u32)) { | |
650 | tmp = (u32) (mac_bssid[i + 0]); | |
651 | tmp |= (u32) (mac_bssid[i + 1]) << 8; | |
652 | tmp |= (u32) (mac_bssid[i + 2]) << 16; | |
653 | tmp |= (u32) (mac_bssid[i + 3]) << 24; | |
654 | b43_ram_write(dev, 0x20 + i, tmp); | |
655 | } | |
656 | } | |
657 | ||
4150c572 | 658 | static void b43_upload_card_macaddress(struct b43_wldev *dev) |
e4d6b795 | 659 | { |
e4d6b795 | 660 | b43_write_mac_bssid_templates(dev); |
4150c572 | 661 | b43_macfilter_set(dev, B43_MACFILTER_SELF, dev->wl->mac_addr); |
e4d6b795 MB |
662 | } |
663 | ||
664 | static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time) | |
665 | { | |
666 | /* slot_time is in usec. */ | |
667 | if (dev->phy.type != B43_PHYTYPE_G) | |
668 | return; | |
669 | b43_write16(dev, 0x684, 510 + slot_time); | |
670 | b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time); | |
671 | } | |
672 | ||
673 | static void b43_short_slot_timing_enable(struct b43_wldev *dev) | |
674 | { | |
675 | b43_set_slot_time(dev, 9); | |
e4d6b795 MB |
676 | } |
677 | ||
678 | static void b43_short_slot_timing_disable(struct b43_wldev *dev) | |
679 | { | |
680 | b43_set_slot_time(dev, 20); | |
e4d6b795 MB |
681 | } |
682 | ||
e4d6b795 MB |
683 | /* Synchronize IRQ top- and bottom-half. |
684 | * IRQs must be masked before calling this. | |
685 | * This must not be called with the irq_lock held. | |
686 | */ | |
687 | static void b43_synchronize_irq(struct b43_wldev *dev) | |
688 | { | |
689 | synchronize_irq(dev->dev->irq); | |
690 | tasklet_kill(&dev->isr_tasklet); | |
691 | } | |
692 | ||
693 | /* DummyTransmission function, as documented on | |
694 | * http://bcm-specs.sipsolutions.net/DummyTransmission | |
695 | */ | |
696 | void b43_dummy_transmission(struct b43_wldev *dev) | |
697 | { | |
21a75d77 | 698 | struct b43_wl *wl = dev->wl; |
e4d6b795 MB |
699 | struct b43_phy *phy = &dev->phy; |
700 | unsigned int i, max_loop; | |
701 | u16 value; | |
702 | u32 buffer[5] = { | |
703 | 0x00000000, | |
704 | 0x00D40000, | |
705 | 0x00000000, | |
706 | 0x01000000, | |
707 | 0x00000000, | |
708 | }; | |
709 | ||
710 | switch (phy->type) { | |
711 | case B43_PHYTYPE_A: | |
712 | max_loop = 0x1E; | |
713 | buffer[0] = 0x000201CC; | |
714 | break; | |
715 | case B43_PHYTYPE_B: | |
716 | case B43_PHYTYPE_G: | |
717 | max_loop = 0xFA; | |
718 | buffer[0] = 0x000B846E; | |
719 | break; | |
720 | default: | |
721 | B43_WARN_ON(1); | |
722 | return; | |
723 | } | |
724 | ||
21a75d77 MB |
725 | spin_lock_irq(&wl->irq_lock); |
726 | write_lock(&wl->tx_lock); | |
727 | ||
e4d6b795 MB |
728 | for (i = 0; i < 5; i++) |
729 | b43_ram_write(dev, i * 4, buffer[i]); | |
730 | ||
731 | /* Commit writes */ | |
732 | b43_read32(dev, B43_MMIO_MACCTL); | |
733 | ||
734 | b43_write16(dev, 0x0568, 0x0000); | |
735 | b43_write16(dev, 0x07C0, 0x0000); | |
736 | value = ((phy->type == B43_PHYTYPE_A) ? 1 : 0); | |
737 | b43_write16(dev, 0x050C, value); | |
738 | b43_write16(dev, 0x0508, 0x0000); | |
739 | b43_write16(dev, 0x050A, 0x0000); | |
740 | b43_write16(dev, 0x054C, 0x0000); | |
741 | b43_write16(dev, 0x056A, 0x0014); | |
742 | b43_write16(dev, 0x0568, 0x0826); | |
743 | b43_write16(dev, 0x0500, 0x0000); | |
744 | b43_write16(dev, 0x0502, 0x0030); | |
745 | ||
746 | if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) | |
747 | b43_radio_write16(dev, 0x0051, 0x0017); | |
748 | for (i = 0x00; i < max_loop; i++) { | |
749 | value = b43_read16(dev, 0x050E); | |
750 | if (value & 0x0080) | |
751 | break; | |
752 | udelay(10); | |
753 | } | |
754 | for (i = 0x00; i < 0x0A; i++) { | |
755 | value = b43_read16(dev, 0x050E); | |
756 | if (value & 0x0400) | |
757 | break; | |
758 | udelay(10); | |
759 | } | |
1d280ddc | 760 | for (i = 0x00; i < 0x19; i++) { |
e4d6b795 MB |
761 | value = b43_read16(dev, 0x0690); |
762 | if (!(value & 0x0100)) | |
763 | break; | |
764 | udelay(10); | |
765 | } | |
766 | if (phy->radio_ver == 0x2050 && phy->radio_rev <= 0x5) | |
767 | b43_radio_write16(dev, 0x0051, 0x0037); | |
21a75d77 MB |
768 | |
769 | write_unlock(&wl->tx_lock); | |
770 | spin_unlock_irq(&wl->irq_lock); | |
e4d6b795 MB |
771 | } |
772 | ||
773 | static void key_write(struct b43_wldev *dev, | |
99da185a | 774 | u8 index, u8 algorithm, const u8 *key) |
e4d6b795 MB |
775 | { |
776 | unsigned int i; | |
777 | u32 offset; | |
778 | u16 value; | |
779 | u16 kidx; | |
780 | ||
781 | /* Key index/algo block */ | |
782 | kidx = b43_kidx_to_fw(dev, index); | |
783 | value = ((kidx << 4) | algorithm); | |
784 | b43_shm_write16(dev, B43_SHM_SHARED, | |
785 | B43_SHM_SH_KEYIDXBLOCK + (kidx * 2), value); | |
786 | ||
787 | /* Write the key to the Key Table Pointer offset */ | |
788 | offset = dev->ktp + (index * B43_SEC_KEYSIZE); | |
789 | for (i = 0; i < B43_SEC_KEYSIZE; i += 2) { | |
790 | value = key[i]; | |
791 | value |= (u16) (key[i + 1]) << 8; | |
792 | b43_shm_write16(dev, B43_SHM_SHARED, offset + i, value); | |
793 | } | |
794 | } | |
795 | ||
99da185a | 796 | static void keymac_write(struct b43_wldev *dev, u8 index, const u8 *addr) |
e4d6b795 MB |
797 | { |
798 | u32 addrtmp[2] = { 0, 0, }; | |
799 | u8 per_sta_keys_start = 8; | |
800 | ||
801 | if (b43_new_kidx_api(dev)) | |
802 | per_sta_keys_start = 4; | |
803 | ||
804 | B43_WARN_ON(index < per_sta_keys_start); | |
805 | /* We have two default TX keys and possibly two default RX keys. | |
806 | * Physical mac 0 is mapped to physical key 4 or 8, depending | |
807 | * on the firmware version. | |
808 | * So we must adjust the index here. | |
809 | */ | |
810 | index -= per_sta_keys_start; | |
811 | ||
812 | if (addr) { | |
813 | addrtmp[0] = addr[0]; | |
814 | addrtmp[0] |= ((u32) (addr[1]) << 8); | |
815 | addrtmp[0] |= ((u32) (addr[2]) << 16); | |
816 | addrtmp[0] |= ((u32) (addr[3]) << 24); | |
817 | addrtmp[1] = addr[4]; | |
818 | addrtmp[1] |= ((u32) (addr[5]) << 8); | |
819 | } | |
820 | ||
821 | if (dev->dev->id.revision >= 5) { | |
822 | /* Receive match transmitter address mechanism */ | |
823 | b43_shm_write32(dev, B43_SHM_RCMTA, | |
824 | (index * 2) + 0, addrtmp[0]); | |
825 | b43_shm_write16(dev, B43_SHM_RCMTA, | |
826 | (index * 2) + 1, addrtmp[1]); | |
827 | } else { | |
828 | /* RXE (Receive Engine) and | |
829 | * PSM (Programmable State Machine) mechanism | |
830 | */ | |
831 | if (index < 8) { | |
832 | /* TODO write to RCM 16, 19, 22 and 25 */ | |
833 | } else { | |
834 | b43_shm_write32(dev, B43_SHM_SHARED, | |
835 | B43_SHM_SH_PSM + (index * 6) + 0, | |
836 | addrtmp[0]); | |
837 | b43_shm_write16(dev, B43_SHM_SHARED, | |
838 | B43_SHM_SH_PSM + (index * 6) + 4, | |
839 | addrtmp[1]); | |
840 | } | |
841 | } | |
842 | } | |
843 | ||
844 | static void do_key_write(struct b43_wldev *dev, | |
845 | u8 index, u8 algorithm, | |
99da185a | 846 | const u8 *key, size_t key_len, const u8 *mac_addr) |
e4d6b795 MB |
847 | { |
848 | u8 buf[B43_SEC_KEYSIZE] = { 0, }; | |
849 | u8 per_sta_keys_start = 8; | |
850 | ||
851 | if (b43_new_kidx_api(dev)) | |
852 | per_sta_keys_start = 4; | |
853 | ||
854 | B43_WARN_ON(index >= dev->max_nr_keys); | |
855 | B43_WARN_ON(key_len > B43_SEC_KEYSIZE); | |
856 | ||
857 | if (index >= per_sta_keys_start) | |
858 | keymac_write(dev, index, NULL); /* First zero out mac. */ | |
859 | if (key) | |
860 | memcpy(buf, key, key_len); | |
861 | key_write(dev, index, algorithm, buf); | |
862 | if (index >= per_sta_keys_start) | |
863 | keymac_write(dev, index, mac_addr); | |
864 | ||
865 | dev->key[index].algorithm = algorithm; | |
866 | } | |
867 | ||
868 | static int b43_key_write(struct b43_wldev *dev, | |
869 | int index, u8 algorithm, | |
99da185a JD |
870 | const u8 *key, size_t key_len, |
871 | const u8 *mac_addr, | |
e4d6b795 MB |
872 | struct ieee80211_key_conf *keyconf) |
873 | { | |
874 | int i; | |
875 | int sta_keys_start; | |
876 | ||
877 | if (key_len > B43_SEC_KEYSIZE) | |
878 | return -EINVAL; | |
879 | for (i = 0; i < dev->max_nr_keys; i++) { | |
880 | /* Check that we don't already have this key. */ | |
881 | B43_WARN_ON(dev->key[i].keyconf == keyconf); | |
882 | } | |
883 | if (index < 0) { | |
e808e586 | 884 | /* Pairwise key. Get an empty slot for the key. */ |
e4d6b795 MB |
885 | if (b43_new_kidx_api(dev)) |
886 | sta_keys_start = 4; | |
887 | else | |
888 | sta_keys_start = 8; | |
889 | for (i = sta_keys_start; i < dev->max_nr_keys; i++) { | |
890 | if (!dev->key[i].keyconf) { | |
891 | /* found empty */ | |
892 | index = i; | |
893 | break; | |
894 | } | |
895 | } | |
896 | if (index < 0) { | |
e808e586 | 897 | b43warn(dev->wl, "Out of hardware key memory\n"); |
e4d6b795 MB |
898 | return -ENOSPC; |
899 | } | |
900 | } else | |
901 | B43_WARN_ON(index > 3); | |
902 | ||
903 | do_key_write(dev, index, algorithm, key, key_len, mac_addr); | |
904 | if ((index <= 3) && !b43_new_kidx_api(dev)) { | |
905 | /* Default RX key */ | |
906 | B43_WARN_ON(mac_addr); | |
907 | do_key_write(dev, index + 4, algorithm, key, key_len, NULL); | |
908 | } | |
909 | keyconf->hw_key_idx = index; | |
910 | dev->key[index].keyconf = keyconf; | |
911 | ||
912 | return 0; | |
913 | } | |
914 | ||
915 | static int b43_key_clear(struct b43_wldev *dev, int index) | |
916 | { | |
917 | if (B43_WARN_ON((index < 0) || (index >= dev->max_nr_keys))) | |
918 | return -EINVAL; | |
919 | do_key_write(dev, index, B43_SEC_ALGO_NONE, | |
920 | NULL, B43_SEC_KEYSIZE, NULL); | |
921 | if ((index <= 3) && !b43_new_kidx_api(dev)) { | |
922 | do_key_write(dev, index + 4, B43_SEC_ALGO_NONE, | |
923 | NULL, B43_SEC_KEYSIZE, NULL); | |
924 | } | |
925 | dev->key[index].keyconf = NULL; | |
926 | ||
927 | return 0; | |
928 | } | |
929 | ||
930 | static void b43_clear_keys(struct b43_wldev *dev) | |
931 | { | |
932 | int i; | |
933 | ||
934 | for (i = 0; i < dev->max_nr_keys; i++) | |
935 | b43_key_clear(dev, i); | |
936 | } | |
937 | ||
9cf7f247 MB |
938 | static void b43_dump_keymemory(struct b43_wldev *dev) |
939 | { | |
940 | unsigned int i, index, offset; | |
941 | DECLARE_MAC_BUF(macbuf); | |
942 | u8 mac[ETH_ALEN]; | |
943 | u16 algo; | |
944 | u32 rcmta0; | |
945 | u16 rcmta1; | |
946 | u64 hf; | |
947 | struct b43_key *key; | |
948 | ||
949 | if (!b43_debug(dev, B43_DBG_KEYS)) | |
950 | return; | |
951 | ||
952 | hf = b43_hf_read(dev); | |
953 | b43dbg(dev->wl, "Hardware key memory dump: USEDEFKEYS=%u\n", | |
954 | !!(hf & B43_HF_USEDEFKEYS)); | |
955 | for (index = 0; index < dev->max_nr_keys; index++) { | |
956 | key = &(dev->key[index]); | |
957 | printk(KERN_DEBUG "Key slot %02u: %s", | |
958 | index, (key->keyconf == NULL) ? " " : "*"); | |
959 | offset = dev->ktp + (index * B43_SEC_KEYSIZE); | |
960 | for (i = 0; i < B43_SEC_KEYSIZE; i += 2) { | |
961 | u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, offset + i); | |
962 | printk("%02X%02X", (tmp & 0xFF), ((tmp >> 8) & 0xFF)); | |
963 | } | |
964 | ||
965 | algo = b43_shm_read16(dev, B43_SHM_SHARED, | |
966 | B43_SHM_SH_KEYIDXBLOCK + (index * 2)); | |
967 | printk(" Algo: %04X/%02X", algo, key->algorithm); | |
968 | ||
969 | if (index >= 4) { | |
970 | rcmta0 = b43_shm_read32(dev, B43_SHM_RCMTA, | |
971 | ((index - 4) * 2) + 0); | |
972 | rcmta1 = b43_shm_read16(dev, B43_SHM_RCMTA, | |
973 | ((index - 4) * 2) + 1); | |
974 | *((__le32 *)(&mac[0])) = cpu_to_le32(rcmta0); | |
975 | *((__le16 *)(&mac[4])) = cpu_to_le16(rcmta1); | |
976 | printk(" MAC: %s", | |
977 | print_mac(macbuf, mac)); | |
978 | } else | |
979 | printk(" DEFAULT KEY"); | |
980 | printk("\n"); | |
981 | } | |
982 | } | |
983 | ||
e4d6b795 MB |
984 | void b43_power_saving_ctl_bits(struct b43_wldev *dev, unsigned int ps_flags) |
985 | { | |
986 | u32 macctl; | |
987 | u16 ucstat; | |
988 | bool hwps; | |
989 | bool awake; | |
990 | int i; | |
991 | ||
992 | B43_WARN_ON((ps_flags & B43_PS_ENABLED) && | |
993 | (ps_flags & B43_PS_DISABLED)); | |
994 | B43_WARN_ON((ps_flags & B43_PS_AWAKE) && (ps_flags & B43_PS_ASLEEP)); | |
995 | ||
996 | if (ps_flags & B43_PS_ENABLED) { | |
997 | hwps = 1; | |
998 | } else if (ps_flags & B43_PS_DISABLED) { | |
999 | hwps = 0; | |
1000 | } else { | |
1001 | //TODO: If powersave is not off and FIXME is not set and we are not in adhoc | |
1002 | // and thus is not an AP and we are associated, set bit 25 | |
1003 | } | |
1004 | if (ps_flags & B43_PS_AWAKE) { | |
1005 | awake = 1; | |
1006 | } else if (ps_flags & B43_PS_ASLEEP) { | |
1007 | awake = 0; | |
1008 | } else { | |
1009 | //TODO: If the device is awake or this is an AP, or we are scanning, or FIXME, | |
1010 | // or we are associated, or FIXME, or the latest PS-Poll packet sent was | |
1011 | // successful, set bit26 | |
1012 | } | |
1013 | ||
1014 | /* FIXME: For now we force awake-on and hwps-off */ | |
1015 | hwps = 0; | |
1016 | awake = 1; | |
1017 | ||
1018 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
1019 | if (hwps) | |
1020 | macctl |= B43_MACCTL_HWPS; | |
1021 | else | |
1022 | macctl &= ~B43_MACCTL_HWPS; | |
1023 | if (awake) | |
1024 | macctl |= B43_MACCTL_AWAKE; | |
1025 | else | |
1026 | macctl &= ~B43_MACCTL_AWAKE; | |
1027 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
1028 | /* Commit write */ | |
1029 | b43_read32(dev, B43_MMIO_MACCTL); | |
1030 | if (awake && dev->dev->id.revision >= 5) { | |
1031 | /* Wait for the microcode to wake up. */ | |
1032 | for (i = 0; i < 100; i++) { | |
1033 | ucstat = b43_shm_read16(dev, B43_SHM_SHARED, | |
1034 | B43_SHM_SH_UCODESTAT); | |
1035 | if (ucstat != B43_SHM_SH_UCODESTAT_SLEEP) | |
1036 | break; | |
1037 | udelay(10); | |
1038 | } | |
1039 | } | |
1040 | } | |
1041 | ||
e4d6b795 MB |
1042 | void b43_wireless_core_reset(struct b43_wldev *dev, u32 flags) |
1043 | { | |
1044 | u32 tmslow; | |
1045 | u32 macctl; | |
1046 | ||
1047 | flags |= B43_TMSLOW_PHYCLKEN; | |
1048 | flags |= B43_TMSLOW_PHYRESET; | |
1049 | ssb_device_enable(dev->dev, flags); | |
1050 | msleep(2); /* Wait for the PLL to turn on. */ | |
1051 | ||
1052 | /* Now take the PHY out of Reset again */ | |
1053 | tmslow = ssb_read32(dev->dev, SSB_TMSLOW); | |
1054 | tmslow |= SSB_TMSLOW_FGC; | |
1055 | tmslow &= ~B43_TMSLOW_PHYRESET; | |
1056 | ssb_write32(dev->dev, SSB_TMSLOW, tmslow); | |
1057 | ssb_read32(dev->dev, SSB_TMSLOW); /* flush */ | |
1058 | msleep(1); | |
1059 | tmslow &= ~SSB_TMSLOW_FGC; | |
1060 | ssb_write32(dev->dev, SSB_TMSLOW, tmslow); | |
1061 | ssb_read32(dev->dev, SSB_TMSLOW); /* flush */ | |
1062 | msleep(1); | |
1063 | ||
fb11137a MB |
1064 | /* Turn Analog ON, but only if we already know the PHY-type. |
1065 | * This protects against very early setup where we don't know the | |
1066 | * PHY-type, yet. wireless_core_reset will be called once again later, | |
1067 | * when we know the PHY-type. */ | |
1068 | if (dev->phy.ops) | |
cb24f57f | 1069 | dev->phy.ops->switch_analog(dev, 1); |
e4d6b795 MB |
1070 | |
1071 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
1072 | macctl &= ~B43_MACCTL_GMODE; | |
1073 | if (flags & B43_TMSLOW_GMODE) | |
1074 | macctl |= B43_MACCTL_GMODE; | |
1075 | macctl |= B43_MACCTL_IHR_ENABLED; | |
1076 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
1077 | } | |
1078 | ||
1079 | static void handle_irq_transmit_status(struct b43_wldev *dev) | |
1080 | { | |
1081 | u32 v0, v1; | |
1082 | u16 tmp; | |
1083 | struct b43_txstatus stat; | |
1084 | ||
1085 | while (1) { | |
1086 | v0 = b43_read32(dev, B43_MMIO_XMITSTAT_0); | |
1087 | if (!(v0 & 0x00000001)) | |
1088 | break; | |
1089 | v1 = b43_read32(dev, B43_MMIO_XMITSTAT_1); | |
1090 | ||
1091 | stat.cookie = (v0 >> 16); | |
1092 | stat.seq = (v1 & 0x0000FFFF); | |
1093 | stat.phy_stat = ((v1 & 0x00FF0000) >> 16); | |
1094 | tmp = (v0 & 0x0000FFFF); | |
1095 | stat.frame_count = ((tmp & 0xF000) >> 12); | |
1096 | stat.rts_count = ((tmp & 0x0F00) >> 8); | |
1097 | stat.supp_reason = ((tmp & 0x001C) >> 2); | |
1098 | stat.pm_indicated = !!(tmp & 0x0080); | |
1099 | stat.intermediate = !!(tmp & 0x0040); | |
1100 | stat.for_ampdu = !!(tmp & 0x0020); | |
1101 | stat.acked = !!(tmp & 0x0002); | |
1102 | ||
1103 | b43_handle_txstatus(dev, &stat); | |
1104 | } | |
1105 | } | |
1106 | ||
1107 | static void drain_txstatus_queue(struct b43_wldev *dev) | |
1108 | { | |
1109 | u32 dummy; | |
1110 | ||
1111 | if (dev->dev->id.revision < 5) | |
1112 | return; | |
1113 | /* Read all entries from the microcode TXstatus FIFO | |
1114 | * and throw them away. | |
1115 | */ | |
1116 | while (1) { | |
1117 | dummy = b43_read32(dev, B43_MMIO_XMITSTAT_0); | |
1118 | if (!(dummy & 0x00000001)) | |
1119 | break; | |
1120 | dummy = b43_read32(dev, B43_MMIO_XMITSTAT_1); | |
1121 | } | |
1122 | } | |
1123 | ||
1124 | static u32 b43_jssi_read(struct b43_wldev *dev) | |
1125 | { | |
1126 | u32 val = 0; | |
1127 | ||
1128 | val = b43_shm_read16(dev, B43_SHM_SHARED, 0x08A); | |
1129 | val <<= 16; | |
1130 | val |= b43_shm_read16(dev, B43_SHM_SHARED, 0x088); | |
1131 | ||
1132 | return val; | |
1133 | } | |
1134 | ||
1135 | static void b43_jssi_write(struct b43_wldev *dev, u32 jssi) | |
1136 | { | |
1137 | b43_shm_write16(dev, B43_SHM_SHARED, 0x088, (jssi & 0x0000FFFF)); | |
1138 | b43_shm_write16(dev, B43_SHM_SHARED, 0x08A, (jssi & 0xFFFF0000) >> 16); | |
1139 | } | |
1140 | ||
1141 | static void b43_generate_noise_sample(struct b43_wldev *dev) | |
1142 | { | |
1143 | b43_jssi_write(dev, 0x7F7F7F7F); | |
aa6c7ae2 MB |
1144 | b43_write32(dev, B43_MMIO_MACCMD, |
1145 | b43_read32(dev, B43_MMIO_MACCMD) | B43_MACCMD_BGNOISE); | |
e4d6b795 MB |
1146 | } |
1147 | ||
1148 | static void b43_calculate_link_quality(struct b43_wldev *dev) | |
1149 | { | |
1150 | /* Top half of Link Quality calculation. */ | |
1151 | ||
ef1a628d MB |
1152 | if (dev->phy.type != B43_PHYTYPE_G) |
1153 | return; | |
e4d6b795 MB |
1154 | if (dev->noisecalc.calculation_running) |
1155 | return; | |
e4d6b795 MB |
1156 | dev->noisecalc.calculation_running = 1; |
1157 | dev->noisecalc.nr_samples = 0; | |
1158 | ||
1159 | b43_generate_noise_sample(dev); | |
1160 | } | |
1161 | ||
1162 | static void handle_irq_noise(struct b43_wldev *dev) | |
1163 | { | |
ef1a628d | 1164 | struct b43_phy_g *phy = dev->phy.g; |
e4d6b795 MB |
1165 | u16 tmp; |
1166 | u8 noise[4]; | |
1167 | u8 i, j; | |
1168 | s32 average; | |
1169 | ||
1170 | /* Bottom half of Link Quality calculation. */ | |
1171 | ||
ef1a628d MB |
1172 | if (dev->phy.type != B43_PHYTYPE_G) |
1173 | return; | |
1174 | ||
98a3b2fe MB |
1175 | /* Possible race condition: It might be possible that the user |
1176 | * changed to a different channel in the meantime since we | |
1177 | * started the calculation. We ignore that fact, since it's | |
1178 | * not really that much of a problem. The background noise is | |
1179 | * an estimation only anyway. Slightly wrong results will get damped | |
1180 | * by the averaging of the 8 sample rounds. Additionally the | |
1181 | * value is shortlived. So it will be replaced by the next noise | |
1182 | * calculation round soon. */ | |
1183 | ||
e4d6b795 | 1184 | B43_WARN_ON(!dev->noisecalc.calculation_running); |
1a09404a | 1185 | *((__le32 *)noise) = cpu_to_le32(b43_jssi_read(dev)); |
e4d6b795 MB |
1186 | if (noise[0] == 0x7F || noise[1] == 0x7F || |
1187 | noise[2] == 0x7F || noise[3] == 0x7F) | |
1188 | goto generate_new; | |
1189 | ||
1190 | /* Get the noise samples. */ | |
1191 | B43_WARN_ON(dev->noisecalc.nr_samples >= 8); | |
1192 | i = dev->noisecalc.nr_samples; | |
cdbf0846 HH |
1193 | noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); |
1194 | noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); | |
1195 | noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); | |
1196 | noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1); | |
e4d6b795 MB |
1197 | dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]]; |
1198 | dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]]; | |
1199 | dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]]; | |
1200 | dev->noisecalc.samples[i][3] = phy->nrssi_lt[noise[3]]; | |
1201 | dev->noisecalc.nr_samples++; | |
1202 | if (dev->noisecalc.nr_samples == 8) { | |
1203 | /* Calculate the Link Quality by the noise samples. */ | |
1204 | average = 0; | |
1205 | for (i = 0; i < 8; i++) { | |
1206 | for (j = 0; j < 4; j++) | |
1207 | average += dev->noisecalc.samples[i][j]; | |
1208 | } | |
1209 | average /= (8 * 4); | |
1210 | average *= 125; | |
1211 | average += 64; | |
1212 | average /= 128; | |
1213 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x40C); | |
1214 | tmp = (tmp / 128) & 0x1F; | |
1215 | if (tmp >= 8) | |
1216 | average += 2; | |
1217 | else | |
1218 | average -= 25; | |
1219 | if (tmp == 8) | |
1220 | average -= 72; | |
1221 | else | |
1222 | average -= 48; | |
1223 | ||
1224 | dev->stats.link_noise = average; | |
e4d6b795 MB |
1225 | dev->noisecalc.calculation_running = 0; |
1226 | return; | |
1227 | } | |
98a3b2fe | 1228 | generate_new: |
e4d6b795 MB |
1229 | b43_generate_noise_sample(dev); |
1230 | } | |
1231 | ||
1232 | static void handle_irq_tbtt_indication(struct b43_wldev *dev) | |
1233 | { | |
05c914fe | 1234 | if (b43_is_mode(dev->wl, NL80211_IFTYPE_AP)) { |
e4d6b795 MB |
1235 | ///TODO: PS TBTT |
1236 | } else { | |
1237 | if (1 /*FIXME: the last PSpoll frame was sent successfully */ ) | |
1238 | b43_power_saving_ctl_bits(dev, 0); | |
1239 | } | |
05c914fe | 1240 | if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) |
aa6c7ae2 | 1241 | dev->dfq_valid = 1; |
e4d6b795 MB |
1242 | } |
1243 | ||
1244 | static void handle_irq_atim_end(struct b43_wldev *dev) | |
1245 | { | |
aa6c7ae2 MB |
1246 | if (dev->dfq_valid) { |
1247 | b43_write32(dev, B43_MMIO_MACCMD, | |
1248 | b43_read32(dev, B43_MMIO_MACCMD) | |
1249 | | B43_MACCMD_DFQ_VALID); | |
1250 | dev->dfq_valid = 0; | |
1251 | } | |
e4d6b795 MB |
1252 | } |
1253 | ||
1254 | static void handle_irq_pmq(struct b43_wldev *dev) | |
1255 | { | |
1256 | u32 tmp; | |
1257 | ||
1258 | //TODO: AP mode. | |
1259 | ||
1260 | while (1) { | |
1261 | tmp = b43_read32(dev, B43_MMIO_PS_STATUS); | |
1262 | if (!(tmp & 0x00000008)) | |
1263 | break; | |
1264 | } | |
1265 | /* 16bit write is odd, but correct. */ | |
1266 | b43_write16(dev, B43_MMIO_PS_STATUS, 0x0002); | |
1267 | } | |
1268 | ||
1269 | static void b43_write_template_common(struct b43_wldev *dev, | |
99da185a | 1270 | const u8 *data, u16 size, |
e4d6b795 MB |
1271 | u16 ram_offset, |
1272 | u16 shm_size_offset, u8 rate) | |
1273 | { | |
1274 | u32 i, tmp; | |
1275 | struct b43_plcp_hdr4 plcp; | |
1276 | ||
1277 | plcp.data = 0; | |
1278 | b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate); | |
1279 | b43_ram_write(dev, ram_offset, le32_to_cpu(plcp.data)); | |
1280 | ram_offset += sizeof(u32); | |
1281 | /* The PLCP is 6 bytes long, but we only wrote 4 bytes, yet. | |
1282 | * So leave the first two bytes of the next write blank. | |
1283 | */ | |
1284 | tmp = (u32) (data[0]) << 16; | |
1285 | tmp |= (u32) (data[1]) << 24; | |
1286 | b43_ram_write(dev, ram_offset, tmp); | |
1287 | ram_offset += sizeof(u32); | |
1288 | for (i = 2; i < size; i += sizeof(u32)) { | |
1289 | tmp = (u32) (data[i + 0]); | |
1290 | if (i + 1 < size) | |
1291 | tmp |= (u32) (data[i + 1]) << 8; | |
1292 | if (i + 2 < size) | |
1293 | tmp |= (u32) (data[i + 2]) << 16; | |
1294 | if (i + 3 < size) | |
1295 | tmp |= (u32) (data[i + 3]) << 24; | |
1296 | b43_ram_write(dev, ram_offset + i - 2, tmp); | |
1297 | } | |
1298 | b43_shm_write16(dev, B43_SHM_SHARED, shm_size_offset, | |
1299 | size + sizeof(struct b43_plcp_hdr6)); | |
1300 | } | |
1301 | ||
5042c507 MB |
1302 | /* Check if the use of the antenna that ieee80211 told us to |
1303 | * use is possible. This will fall back to DEFAULT. | |
1304 | * "antenna_nr" is the antenna identifier we got from ieee80211. */ | |
1305 | u8 b43_ieee80211_antenna_sanitize(struct b43_wldev *dev, | |
1306 | u8 antenna_nr) | |
1307 | { | |
1308 | u8 antenna_mask; | |
1309 | ||
1310 | if (antenna_nr == 0) { | |
1311 | /* Zero means "use default antenna". That's always OK. */ | |
1312 | return 0; | |
1313 | } | |
1314 | ||
1315 | /* Get the mask of available antennas. */ | |
1316 | if (dev->phy.gmode) | |
1317 | antenna_mask = dev->dev->bus->sprom.ant_available_bg; | |
1318 | else | |
1319 | antenna_mask = dev->dev->bus->sprom.ant_available_a; | |
1320 | ||
1321 | if (!(antenna_mask & (1 << (antenna_nr - 1)))) { | |
1322 | /* This antenna is not available. Fall back to default. */ | |
1323 | return 0; | |
1324 | } | |
1325 | ||
1326 | return antenna_nr; | |
1327 | } | |
1328 | ||
5042c507 MB |
1329 | /* Convert a b43 antenna number value to the PHY TX control value. */ |
1330 | static u16 b43_antenna_to_phyctl(int antenna) | |
1331 | { | |
1332 | switch (antenna) { | |
1333 | case B43_ANTENNA0: | |
1334 | return B43_TXH_PHY_ANT0; | |
1335 | case B43_ANTENNA1: | |
1336 | return B43_TXH_PHY_ANT1; | |
1337 | case B43_ANTENNA2: | |
1338 | return B43_TXH_PHY_ANT2; | |
1339 | case B43_ANTENNA3: | |
1340 | return B43_TXH_PHY_ANT3; | |
1341 | case B43_ANTENNA_AUTO: | |
1342 | return B43_TXH_PHY_ANT01AUTO; | |
1343 | } | |
1344 | B43_WARN_ON(1); | |
1345 | return 0; | |
1346 | } | |
1347 | ||
e4d6b795 MB |
1348 | static void b43_write_beacon_template(struct b43_wldev *dev, |
1349 | u16 ram_offset, | |
5042c507 | 1350 | u16 shm_size_offset) |
e4d6b795 | 1351 | { |
47f76ca3 | 1352 | unsigned int i, len, variable_len; |
e66fee6a MB |
1353 | const struct ieee80211_mgmt *bcn; |
1354 | const u8 *ie; | |
1355 | bool tim_found = 0; | |
5042c507 MB |
1356 | unsigned int rate; |
1357 | u16 ctl; | |
1358 | int antenna; | |
e039fa4a | 1359 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(dev->wl->current_beacon); |
e4d6b795 | 1360 | |
e66fee6a MB |
1361 | bcn = (const struct ieee80211_mgmt *)(dev->wl->current_beacon->data); |
1362 | len = min((size_t) dev->wl->current_beacon->len, | |
e4d6b795 | 1363 | 0x200 - sizeof(struct b43_plcp_hdr6)); |
e039fa4a | 1364 | rate = ieee80211_get_tx_rate(dev->wl->hw, info)->hw_value; |
e66fee6a MB |
1365 | |
1366 | b43_write_template_common(dev, (const u8 *)bcn, | |
e4d6b795 | 1367 | len, ram_offset, shm_size_offset, rate); |
e66fee6a | 1368 | |
5042c507 | 1369 | /* Write the PHY TX control parameters. */ |
0f4ac38b | 1370 | antenna = B43_ANTENNA_DEFAULT; |
5042c507 MB |
1371 | antenna = b43_antenna_to_phyctl(antenna); |
1372 | ctl = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL); | |
1373 | /* We can't send beacons with short preamble. Would get PHY errors. */ | |
1374 | ctl &= ~B43_TXH_PHY_SHORTPRMBL; | |
1375 | ctl &= ~B43_TXH_PHY_ANT; | |
1376 | ctl &= ~B43_TXH_PHY_ENC; | |
1377 | ctl |= antenna; | |
1378 | if (b43_is_cck_rate(rate)) | |
1379 | ctl |= B43_TXH_PHY_ENC_CCK; | |
1380 | else | |
1381 | ctl |= B43_TXH_PHY_ENC_OFDM; | |
1382 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl); | |
1383 | ||
e66fee6a MB |
1384 | /* Find the position of the TIM and the DTIM_period value |
1385 | * and write them to SHM. */ | |
1386 | ie = bcn->u.beacon.variable; | |
47f76ca3 MB |
1387 | variable_len = len - offsetof(struct ieee80211_mgmt, u.beacon.variable); |
1388 | for (i = 0; i < variable_len - 2; ) { | |
e66fee6a MB |
1389 | uint8_t ie_id, ie_len; |
1390 | ||
1391 | ie_id = ie[i]; | |
1392 | ie_len = ie[i + 1]; | |
1393 | if (ie_id == 5) { | |
1394 | u16 tim_position; | |
1395 | u16 dtim_period; | |
1396 | /* This is the TIM Information Element */ | |
1397 | ||
1398 | /* Check whether the ie_len is in the beacon data range. */ | |
47f76ca3 | 1399 | if (variable_len < ie_len + 2 + i) |
e66fee6a MB |
1400 | break; |
1401 | /* A valid TIM is at least 4 bytes long. */ | |
1402 | if (ie_len < 4) | |
1403 | break; | |
1404 | tim_found = 1; | |
1405 | ||
1406 | tim_position = sizeof(struct b43_plcp_hdr6); | |
1407 | tim_position += offsetof(struct ieee80211_mgmt, u.beacon.variable); | |
1408 | tim_position += i; | |
1409 | ||
1410 | dtim_period = ie[i + 3]; | |
1411 | ||
1412 | b43_shm_write16(dev, B43_SHM_SHARED, | |
1413 | B43_SHM_SH_TIMBPOS, tim_position); | |
1414 | b43_shm_write16(dev, B43_SHM_SHARED, | |
1415 | B43_SHM_SH_DTIMPER, dtim_period); | |
1416 | break; | |
1417 | } | |
1418 | i += ie_len + 2; | |
1419 | } | |
1420 | if (!tim_found) { | |
04dea136 JB |
1421 | /* |
1422 | * If ucode wants to modify TIM do it behind the beacon, this | |
1423 | * will happen, for example, when doing mesh networking. | |
1424 | */ | |
1425 | b43_shm_write16(dev, B43_SHM_SHARED, | |
1426 | B43_SHM_SH_TIMBPOS, | |
1427 | len + sizeof(struct b43_plcp_hdr6)); | |
1428 | b43_shm_write16(dev, B43_SHM_SHARED, | |
1429 | B43_SHM_SH_DTIMPER, 0); | |
1430 | } | |
1431 | b43dbg(dev->wl, "Updated beacon template at 0x%x\n", ram_offset); | |
e4d6b795 MB |
1432 | } |
1433 | ||
1434 | static void b43_write_probe_resp_plcp(struct b43_wldev *dev, | |
8318d78a JB |
1435 | u16 shm_offset, u16 size, |
1436 | struct ieee80211_rate *rate) | |
e4d6b795 MB |
1437 | { |
1438 | struct b43_plcp_hdr4 plcp; | |
1439 | u32 tmp; | |
1440 | __le16 dur; | |
1441 | ||
1442 | plcp.data = 0; | |
8318d78a | 1443 | b43_generate_plcp_hdr(&plcp, size + FCS_LEN, rate->hw_value); |
e4d6b795 | 1444 | dur = ieee80211_generic_frame_duration(dev->wl->hw, |
32bfd35d | 1445 | dev->wl->vif, size, |
8318d78a | 1446 | rate); |
e4d6b795 MB |
1447 | /* Write PLCP in two parts and timing for packet transfer */ |
1448 | tmp = le32_to_cpu(plcp.data); | |
1449 | b43_shm_write16(dev, B43_SHM_SHARED, shm_offset, tmp & 0xFFFF); | |
1450 | b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 2, tmp >> 16); | |
1451 | b43_shm_write16(dev, B43_SHM_SHARED, shm_offset + 6, le16_to_cpu(dur)); | |
1452 | } | |
1453 | ||
1454 | /* Instead of using custom probe response template, this function | |
1455 | * just patches custom beacon template by: | |
1456 | * 1) Changing packet type | |
1457 | * 2) Patching duration field | |
1458 | * 3) Stripping TIM | |
1459 | */ | |
99da185a JD |
1460 | static const u8 *b43_generate_probe_resp(struct b43_wldev *dev, |
1461 | u16 *dest_size, | |
1462 | struct ieee80211_rate *rate) | |
e4d6b795 MB |
1463 | { |
1464 | const u8 *src_data; | |
1465 | u8 *dest_data; | |
1466 | u16 src_size, elem_size, src_pos, dest_pos; | |
1467 | __le16 dur; | |
1468 | struct ieee80211_hdr *hdr; | |
e66fee6a MB |
1469 | size_t ie_start; |
1470 | ||
1471 | src_size = dev->wl->current_beacon->len; | |
1472 | src_data = (const u8 *)dev->wl->current_beacon->data; | |
e4d6b795 | 1473 | |
e66fee6a MB |
1474 | /* Get the start offset of the variable IEs in the packet. */ |
1475 | ie_start = offsetof(struct ieee80211_mgmt, u.probe_resp.variable); | |
1476 | B43_WARN_ON(ie_start != offsetof(struct ieee80211_mgmt, u.beacon.variable)); | |
e4d6b795 | 1477 | |
e66fee6a | 1478 | if (B43_WARN_ON(src_size < ie_start)) |
e4d6b795 | 1479 | return NULL; |
e4d6b795 MB |
1480 | |
1481 | dest_data = kmalloc(src_size, GFP_ATOMIC); | |
1482 | if (unlikely(!dest_data)) | |
1483 | return NULL; | |
1484 | ||
e66fee6a MB |
1485 | /* Copy the static data and all Information Elements, except the TIM. */ |
1486 | memcpy(dest_data, src_data, ie_start); | |
1487 | src_pos = ie_start; | |
1488 | dest_pos = ie_start; | |
1489 | for ( ; src_pos < src_size - 2; src_pos += elem_size) { | |
e4d6b795 | 1490 | elem_size = src_data[src_pos + 1] + 2; |
e66fee6a MB |
1491 | if (src_data[src_pos] == 5) { |
1492 | /* This is the TIM. */ | |
1493 | continue; | |
e4d6b795 | 1494 | } |
e66fee6a MB |
1495 | memcpy(dest_data + dest_pos, src_data + src_pos, |
1496 | elem_size); | |
1497 | dest_pos += elem_size; | |
e4d6b795 MB |
1498 | } |
1499 | *dest_size = dest_pos; | |
1500 | hdr = (struct ieee80211_hdr *)dest_data; | |
1501 | ||
1502 | /* Set the frame control. */ | |
1503 | hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | | |
1504 | IEEE80211_STYPE_PROBE_RESP); | |
1505 | dur = ieee80211_generic_frame_duration(dev->wl->hw, | |
32bfd35d | 1506 | dev->wl->vif, *dest_size, |
8318d78a | 1507 | rate); |
e4d6b795 MB |
1508 | hdr->duration_id = dur; |
1509 | ||
1510 | return dest_data; | |
1511 | } | |
1512 | ||
1513 | static void b43_write_probe_resp_template(struct b43_wldev *dev, | |
1514 | u16 ram_offset, | |
8318d78a JB |
1515 | u16 shm_size_offset, |
1516 | struct ieee80211_rate *rate) | |
e4d6b795 | 1517 | { |
e66fee6a | 1518 | const u8 *probe_resp_data; |
e4d6b795 MB |
1519 | u16 size; |
1520 | ||
e66fee6a | 1521 | size = dev->wl->current_beacon->len; |
e4d6b795 MB |
1522 | probe_resp_data = b43_generate_probe_resp(dev, &size, rate); |
1523 | if (unlikely(!probe_resp_data)) | |
1524 | return; | |
1525 | ||
1526 | /* Looks like PLCP headers plus packet timings are stored for | |
1527 | * all possible basic rates | |
1528 | */ | |
8318d78a JB |
1529 | b43_write_probe_resp_plcp(dev, 0x31A, size, &b43_b_ratetable[0]); |
1530 | b43_write_probe_resp_plcp(dev, 0x32C, size, &b43_b_ratetable[1]); | |
1531 | b43_write_probe_resp_plcp(dev, 0x33E, size, &b43_b_ratetable[2]); | |
1532 | b43_write_probe_resp_plcp(dev, 0x350, size, &b43_b_ratetable[3]); | |
e4d6b795 MB |
1533 | |
1534 | size = min((size_t) size, 0x200 - sizeof(struct b43_plcp_hdr6)); | |
1535 | b43_write_template_common(dev, probe_resp_data, | |
8318d78a JB |
1536 | size, ram_offset, shm_size_offset, |
1537 | rate->hw_value); | |
e4d6b795 MB |
1538 | kfree(probe_resp_data); |
1539 | } | |
1540 | ||
6b4bec01 MB |
1541 | static void b43_upload_beacon0(struct b43_wldev *dev) |
1542 | { | |
1543 | struct b43_wl *wl = dev->wl; | |
1544 | ||
1545 | if (wl->beacon0_uploaded) | |
1546 | return; | |
1547 | b43_write_beacon_template(dev, 0x68, 0x18); | |
1548 | /* FIXME: Probe resp upload doesn't really belong here, | |
1549 | * but we don't use that feature anyway. */ | |
1550 | b43_write_probe_resp_template(dev, 0x268, 0x4A, | |
1551 | &__b43_ratetable[3]); | |
1552 | wl->beacon0_uploaded = 1; | |
1553 | } | |
1554 | ||
1555 | static void b43_upload_beacon1(struct b43_wldev *dev) | |
1556 | { | |
1557 | struct b43_wl *wl = dev->wl; | |
1558 | ||
1559 | if (wl->beacon1_uploaded) | |
1560 | return; | |
1561 | b43_write_beacon_template(dev, 0x468, 0x1A); | |
1562 | wl->beacon1_uploaded = 1; | |
1563 | } | |
1564 | ||
c97a4ccc MB |
1565 | static void handle_irq_beacon(struct b43_wldev *dev) |
1566 | { | |
1567 | struct b43_wl *wl = dev->wl; | |
1568 | u32 cmd, beacon0_valid, beacon1_valid; | |
1569 | ||
05c914fe JB |
1570 | if (!b43_is_mode(wl, NL80211_IFTYPE_AP) && |
1571 | !b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT)) | |
c97a4ccc MB |
1572 | return; |
1573 | ||
1574 | /* This is the bottom half of the asynchronous beacon update. */ | |
1575 | ||
1576 | /* Ignore interrupt in the future. */ | |
13790728 | 1577 | dev->irq_mask &= ~B43_IRQ_BEACON; |
c97a4ccc MB |
1578 | |
1579 | cmd = b43_read32(dev, B43_MMIO_MACCMD); | |
1580 | beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID); | |
1581 | beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID); | |
1582 | ||
1583 | /* Schedule interrupt manually, if busy. */ | |
1584 | if (beacon0_valid && beacon1_valid) { | |
1585 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON); | |
13790728 | 1586 | dev->irq_mask |= B43_IRQ_BEACON; |
c97a4ccc MB |
1587 | return; |
1588 | } | |
1589 | ||
6b4bec01 MB |
1590 | if (unlikely(wl->beacon_templates_virgin)) { |
1591 | /* We never uploaded a beacon before. | |
1592 | * Upload both templates now, but only mark one valid. */ | |
1593 | wl->beacon_templates_virgin = 0; | |
1594 | b43_upload_beacon0(dev); | |
1595 | b43_upload_beacon1(dev); | |
c97a4ccc MB |
1596 | cmd = b43_read32(dev, B43_MMIO_MACCMD); |
1597 | cmd |= B43_MACCMD_BEACON0_VALID; | |
1598 | b43_write32(dev, B43_MMIO_MACCMD, cmd); | |
6b4bec01 MB |
1599 | } else { |
1600 | if (!beacon0_valid) { | |
1601 | b43_upload_beacon0(dev); | |
1602 | cmd = b43_read32(dev, B43_MMIO_MACCMD); | |
1603 | cmd |= B43_MACCMD_BEACON0_VALID; | |
1604 | b43_write32(dev, B43_MMIO_MACCMD, cmd); | |
1605 | } else if (!beacon1_valid) { | |
1606 | b43_upload_beacon1(dev); | |
1607 | cmd = b43_read32(dev, B43_MMIO_MACCMD); | |
1608 | cmd |= B43_MACCMD_BEACON1_VALID; | |
1609 | b43_write32(dev, B43_MMIO_MACCMD, cmd); | |
c97a4ccc | 1610 | } |
c97a4ccc MB |
1611 | } |
1612 | } | |
1613 | ||
a82d9922 MB |
1614 | static void b43_beacon_update_trigger_work(struct work_struct *work) |
1615 | { | |
1616 | struct b43_wl *wl = container_of(work, struct b43_wl, | |
1617 | beacon_update_trigger); | |
1618 | struct b43_wldev *dev; | |
1619 | ||
1620 | mutex_lock(&wl->mutex); | |
1621 | dev = wl->current_dev; | |
1622 | if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) { | |
a82d9922 | 1623 | spin_lock_irq(&wl->irq_lock); |
c97a4ccc | 1624 | /* update beacon right away or defer to irq */ |
c97a4ccc MB |
1625 | handle_irq_beacon(dev); |
1626 | /* The handler might have updated the IRQ mask. */ | |
13790728 | 1627 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); |
c97a4ccc | 1628 | mmiowb(); |
a82d9922 MB |
1629 | spin_unlock_irq(&wl->irq_lock); |
1630 | } | |
1631 | mutex_unlock(&wl->mutex); | |
1632 | } | |
1633 | ||
d4df6f1a MB |
1634 | /* Asynchronously update the packet templates in template RAM. |
1635 | * Locking: Requires wl->irq_lock to be locked. */ | |
9d139c81 | 1636 | static void b43_update_templates(struct b43_wl *wl) |
e4d6b795 | 1637 | { |
9d139c81 JB |
1638 | struct sk_buff *beacon; |
1639 | ||
e66fee6a MB |
1640 | /* This is the top half of the ansynchronous beacon update. |
1641 | * The bottom half is the beacon IRQ. | |
1642 | * Beacon update must be asynchronous to avoid sending an | |
1643 | * invalid beacon. This can happen for example, if the firmware | |
1644 | * transmits a beacon while we are updating it. */ | |
e4d6b795 | 1645 | |
9d139c81 JB |
1646 | /* We could modify the existing beacon and set the aid bit in |
1647 | * the TIM field, but that would probably require resizing and | |
1648 | * moving of data within the beacon template. | |
1649 | * Simply request a new beacon and let mac80211 do the hard work. */ | |
1650 | beacon = ieee80211_beacon_get(wl->hw, wl->vif); | |
1651 | if (unlikely(!beacon)) | |
1652 | return; | |
1653 | ||
e66fee6a MB |
1654 | if (wl->current_beacon) |
1655 | dev_kfree_skb_any(wl->current_beacon); | |
1656 | wl->current_beacon = beacon; | |
1657 | wl->beacon0_uploaded = 0; | |
1658 | wl->beacon1_uploaded = 0; | |
a82d9922 | 1659 | queue_work(wl->hw->workqueue, &wl->beacon_update_trigger); |
e4d6b795 MB |
1660 | } |
1661 | ||
e4d6b795 MB |
1662 | static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int) |
1663 | { | |
1664 | b43_time_lock(dev); | |
1665 | if (dev->dev->id.revision >= 3) { | |
a82d9922 MB |
1666 | b43_write32(dev, B43_MMIO_TSF_CFP_REP, (beacon_int << 16)); |
1667 | b43_write32(dev, B43_MMIO_TSF_CFP_START, (beacon_int << 10)); | |
e4d6b795 MB |
1668 | } else { |
1669 | b43_write16(dev, 0x606, (beacon_int >> 6)); | |
1670 | b43_write16(dev, 0x610, beacon_int); | |
1671 | } | |
1672 | b43_time_unlock(dev); | |
a82d9922 | 1673 | b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int); |
e4d6b795 MB |
1674 | } |
1675 | ||
afa83e23 MB |
1676 | static void b43_handle_firmware_panic(struct b43_wldev *dev) |
1677 | { | |
1678 | u16 reason; | |
1679 | ||
1680 | /* Read the register that contains the reason code for the panic. */ | |
1681 | reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_FWPANIC_REASON_REG); | |
1682 | b43err(dev->wl, "Whoopsy, firmware panic! Reason: %u\n", reason); | |
1683 | ||
1684 | switch (reason) { | |
1685 | default: | |
1686 | b43dbg(dev->wl, "The panic reason is unknown.\n"); | |
1687 | /* fallthrough */ | |
1688 | case B43_FWPANIC_DIE: | |
1689 | /* Do not restart the controller or firmware. | |
1690 | * The device is nonfunctional from now on. | |
1691 | * Restarting would result in this panic to trigger again, | |
1692 | * so we avoid that recursion. */ | |
1693 | break; | |
1694 | case B43_FWPANIC_RESTART: | |
1695 | b43_controller_restart(dev, "Microcode panic"); | |
1696 | break; | |
1697 | } | |
1698 | } | |
1699 | ||
e4d6b795 MB |
1700 | static void handle_irq_ucode_debug(struct b43_wldev *dev) |
1701 | { | |
e48b0eeb | 1702 | unsigned int i, cnt; |
53c06856 | 1703 | u16 reason, marker_id, marker_line; |
e48b0eeb MB |
1704 | __le16 *buf; |
1705 | ||
1706 | /* The proprietary firmware doesn't have this IRQ. */ | |
1707 | if (!dev->fw.opensource) | |
1708 | return; | |
1709 | ||
afa83e23 MB |
1710 | /* Read the register that contains the reason code for this IRQ. */ |
1711 | reason = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_DEBUGIRQ_REASON_REG); | |
1712 | ||
e48b0eeb MB |
1713 | switch (reason) { |
1714 | case B43_DEBUGIRQ_PANIC: | |
afa83e23 | 1715 | b43_handle_firmware_panic(dev); |
e48b0eeb MB |
1716 | break; |
1717 | case B43_DEBUGIRQ_DUMP_SHM: | |
1718 | if (!B43_DEBUG) | |
1719 | break; /* Only with driver debugging enabled. */ | |
1720 | buf = kmalloc(4096, GFP_ATOMIC); | |
1721 | if (!buf) { | |
1722 | b43dbg(dev->wl, "SHM-dump: Failed to allocate memory\n"); | |
1723 | goto out; | |
1724 | } | |
1725 | for (i = 0; i < 4096; i += 2) { | |
1726 | u16 tmp = b43_shm_read16(dev, B43_SHM_SHARED, i); | |
1727 | buf[i / 2] = cpu_to_le16(tmp); | |
1728 | } | |
1729 | b43info(dev->wl, "Shared memory dump:\n"); | |
1730 | print_hex_dump(KERN_INFO, "", DUMP_PREFIX_OFFSET, | |
1731 | 16, 2, buf, 4096, 1); | |
1732 | kfree(buf); | |
1733 | break; | |
1734 | case B43_DEBUGIRQ_DUMP_REGS: | |
1735 | if (!B43_DEBUG) | |
1736 | break; /* Only with driver debugging enabled. */ | |
1737 | b43info(dev->wl, "Microcode register dump:\n"); | |
1738 | for (i = 0, cnt = 0; i < 64; i++) { | |
1739 | u16 tmp = b43_shm_read16(dev, B43_SHM_SCRATCH, i); | |
1740 | if (cnt == 0) | |
1741 | printk(KERN_INFO); | |
1742 | printk("r%02u: 0x%04X ", i, tmp); | |
1743 | cnt++; | |
1744 | if (cnt == 6) { | |
1745 | printk("\n"); | |
1746 | cnt = 0; | |
1747 | } | |
1748 | } | |
1749 | printk("\n"); | |
1750 | break; | |
53c06856 MB |
1751 | case B43_DEBUGIRQ_MARKER: |
1752 | if (!B43_DEBUG) | |
1753 | break; /* Only with driver debugging enabled. */ | |
1754 | marker_id = b43_shm_read16(dev, B43_SHM_SCRATCH, | |
1755 | B43_MARKER_ID_REG); | |
1756 | marker_line = b43_shm_read16(dev, B43_SHM_SCRATCH, | |
1757 | B43_MARKER_LINE_REG); | |
1758 | b43info(dev->wl, "The firmware just executed the MARKER(%u) " | |
1759 | "at line number %u\n", | |
1760 | marker_id, marker_line); | |
1761 | break; | |
e48b0eeb MB |
1762 | default: |
1763 | b43dbg(dev->wl, "Debug-IRQ triggered for unknown reason: %u\n", | |
1764 | reason); | |
1765 | } | |
1766 | out: | |
afa83e23 MB |
1767 | /* Acknowledge the debug-IRQ, so the firmware can continue. */ |
1768 | b43_shm_write16(dev, B43_SHM_SCRATCH, | |
1769 | B43_DEBUGIRQ_REASON_REG, B43_DEBUGIRQ_ACK); | |
e4d6b795 MB |
1770 | } |
1771 | ||
1772 | /* Interrupt handler bottom-half */ | |
1773 | static void b43_interrupt_tasklet(struct b43_wldev *dev) | |
1774 | { | |
1775 | u32 reason; | |
1776 | u32 dma_reason[ARRAY_SIZE(dev->dma_reason)]; | |
1777 | u32 merged_dma_reason = 0; | |
21954c36 | 1778 | int i; |
e4d6b795 MB |
1779 | unsigned long flags; |
1780 | ||
1781 | spin_lock_irqsave(&dev->wl->irq_lock, flags); | |
1782 | ||
1783 | B43_WARN_ON(b43_status(dev) != B43_STAT_STARTED); | |
1784 | ||
1785 | reason = dev->irq_reason; | |
1786 | for (i = 0; i < ARRAY_SIZE(dma_reason); i++) { | |
1787 | dma_reason[i] = dev->dma_reason[i]; | |
1788 | merged_dma_reason |= dma_reason[i]; | |
1789 | } | |
1790 | ||
1791 | if (unlikely(reason & B43_IRQ_MAC_TXERR)) | |
1792 | b43err(dev->wl, "MAC transmission error\n"); | |
1793 | ||
00e0b8cb | 1794 | if (unlikely(reason & B43_IRQ_PHY_TXERR)) { |
e4d6b795 | 1795 | b43err(dev->wl, "PHY transmission error\n"); |
00e0b8cb SB |
1796 | rmb(); |
1797 | if (unlikely(atomic_dec_and_test(&dev->phy.txerr_cnt))) { | |
1798 | atomic_set(&dev->phy.txerr_cnt, | |
1799 | B43_PHY_TX_BADNESS_LIMIT); | |
1800 | b43err(dev->wl, "Too many PHY TX errors, " | |
1801 | "restarting the controller\n"); | |
1802 | b43_controller_restart(dev, "PHY TX errors"); | |
1803 | } | |
1804 | } | |
e4d6b795 MB |
1805 | |
1806 | if (unlikely(merged_dma_reason & (B43_DMAIRQ_FATALMASK | | |
1807 | B43_DMAIRQ_NONFATALMASK))) { | |
1808 | if (merged_dma_reason & B43_DMAIRQ_FATALMASK) { | |
1809 | b43err(dev->wl, "Fatal DMA error: " | |
1810 | "0x%08X, 0x%08X, 0x%08X, " | |
1811 | "0x%08X, 0x%08X, 0x%08X\n", | |
1812 | dma_reason[0], dma_reason[1], | |
1813 | dma_reason[2], dma_reason[3], | |
1814 | dma_reason[4], dma_reason[5]); | |
1815 | b43_controller_restart(dev, "DMA error"); | |
1816 | mmiowb(); | |
1817 | spin_unlock_irqrestore(&dev->wl->irq_lock, flags); | |
1818 | return; | |
1819 | } | |
1820 | if (merged_dma_reason & B43_DMAIRQ_NONFATALMASK) { | |
1821 | b43err(dev->wl, "DMA error: " | |
1822 | "0x%08X, 0x%08X, 0x%08X, " | |
1823 | "0x%08X, 0x%08X, 0x%08X\n", | |
1824 | dma_reason[0], dma_reason[1], | |
1825 | dma_reason[2], dma_reason[3], | |
1826 | dma_reason[4], dma_reason[5]); | |
1827 | } | |
1828 | } | |
1829 | ||
1830 | if (unlikely(reason & B43_IRQ_UCODE_DEBUG)) | |
1831 | handle_irq_ucode_debug(dev); | |
1832 | if (reason & B43_IRQ_TBTT_INDI) | |
1833 | handle_irq_tbtt_indication(dev); | |
1834 | if (reason & B43_IRQ_ATIM_END) | |
1835 | handle_irq_atim_end(dev); | |
1836 | if (reason & B43_IRQ_BEACON) | |
1837 | handle_irq_beacon(dev); | |
1838 | if (reason & B43_IRQ_PMQ) | |
1839 | handle_irq_pmq(dev); | |
21954c36 MB |
1840 | if (reason & B43_IRQ_TXFIFO_FLUSH_OK) |
1841 | ;/* TODO */ | |
1842 | if (reason & B43_IRQ_NOISESAMPLE_OK) | |
e4d6b795 MB |
1843 | handle_irq_noise(dev); |
1844 | ||
1845 | /* Check the DMA reason registers for received data. */ | |
5100d5ac MB |
1846 | if (dma_reason[0] & B43_DMAIRQ_RX_DONE) { |
1847 | if (b43_using_pio_transfers(dev)) | |
1848 | b43_pio_rx(dev->pio.rx_queue); | |
1849 | else | |
1850 | b43_dma_rx(dev->dma.rx_ring); | |
1851 | } | |
e4d6b795 MB |
1852 | B43_WARN_ON(dma_reason[1] & B43_DMAIRQ_RX_DONE); |
1853 | B43_WARN_ON(dma_reason[2] & B43_DMAIRQ_RX_DONE); | |
b27faf8e | 1854 | B43_WARN_ON(dma_reason[3] & B43_DMAIRQ_RX_DONE); |
e4d6b795 MB |
1855 | B43_WARN_ON(dma_reason[4] & B43_DMAIRQ_RX_DONE); |
1856 | B43_WARN_ON(dma_reason[5] & B43_DMAIRQ_RX_DONE); | |
1857 | ||
21954c36 | 1858 | if (reason & B43_IRQ_TX_OK) |
e4d6b795 | 1859 | handle_irq_transmit_status(dev); |
e4d6b795 | 1860 | |
13790728 | 1861 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); |
e4d6b795 MB |
1862 | mmiowb(); |
1863 | spin_unlock_irqrestore(&dev->wl->irq_lock, flags); | |
1864 | } | |
1865 | ||
e4d6b795 MB |
1866 | static void b43_interrupt_ack(struct b43_wldev *dev, u32 reason) |
1867 | { | |
e4d6b795 MB |
1868 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, reason); |
1869 | ||
1870 | b43_write32(dev, B43_MMIO_DMA0_REASON, dev->dma_reason[0]); | |
1871 | b43_write32(dev, B43_MMIO_DMA1_REASON, dev->dma_reason[1]); | |
1872 | b43_write32(dev, B43_MMIO_DMA2_REASON, dev->dma_reason[2]); | |
1873 | b43_write32(dev, B43_MMIO_DMA3_REASON, dev->dma_reason[3]); | |
1874 | b43_write32(dev, B43_MMIO_DMA4_REASON, dev->dma_reason[4]); | |
13790728 | 1875 | /* Unused ring |
e4d6b795 | 1876 | b43_write32(dev, B43_MMIO_DMA5_REASON, dev->dma_reason[5]); |
13790728 | 1877 | */ |
e4d6b795 MB |
1878 | } |
1879 | ||
1880 | /* Interrupt handler top-half */ | |
1881 | static irqreturn_t b43_interrupt_handler(int irq, void *dev_id) | |
1882 | { | |
1883 | irqreturn_t ret = IRQ_NONE; | |
1884 | struct b43_wldev *dev = dev_id; | |
1885 | u32 reason; | |
1886 | ||
13790728 | 1887 | B43_WARN_ON(!dev); |
e4d6b795 MB |
1888 | |
1889 | spin_lock(&dev->wl->irq_lock); | |
1890 | ||
13790728 MB |
1891 | if (unlikely(b43_status(dev) < B43_STAT_STARTED)) { |
1892 | /* This can only happen on shared IRQ lines. */ | |
e4d6b795 | 1893 | goto out; |
13790728 | 1894 | } |
e4d6b795 MB |
1895 | reason = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); |
1896 | if (reason == 0xffffffff) /* shared IRQ */ | |
1897 | goto out; | |
1898 | ret = IRQ_HANDLED; | |
13790728 | 1899 | reason &= dev->irq_mask; |
e4d6b795 MB |
1900 | if (!reason) |
1901 | goto out; | |
1902 | ||
1903 | dev->dma_reason[0] = b43_read32(dev, B43_MMIO_DMA0_REASON) | |
1904 | & 0x0001DC00; | |
1905 | dev->dma_reason[1] = b43_read32(dev, B43_MMIO_DMA1_REASON) | |
1906 | & 0x0000DC00; | |
1907 | dev->dma_reason[2] = b43_read32(dev, B43_MMIO_DMA2_REASON) | |
1908 | & 0x0000DC00; | |
1909 | dev->dma_reason[3] = b43_read32(dev, B43_MMIO_DMA3_REASON) | |
1910 | & 0x0001DC00; | |
1911 | dev->dma_reason[4] = b43_read32(dev, B43_MMIO_DMA4_REASON) | |
1912 | & 0x0000DC00; | |
13790728 | 1913 | /* Unused ring |
e4d6b795 MB |
1914 | dev->dma_reason[5] = b43_read32(dev, B43_MMIO_DMA5_REASON) |
1915 | & 0x0000DC00; | |
13790728 | 1916 | */ |
e4d6b795 MB |
1917 | |
1918 | b43_interrupt_ack(dev, reason); | |
1919 | /* disable all IRQs. They are enabled again in the bottom half. */ | |
13790728 | 1920 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0); |
e4d6b795 MB |
1921 | /* save the reason code and call our bottom half. */ |
1922 | dev->irq_reason = reason; | |
1923 | tasklet_schedule(&dev->isr_tasklet); | |
13790728 | 1924 | out: |
e4d6b795 MB |
1925 | mmiowb(); |
1926 | spin_unlock(&dev->wl->irq_lock); | |
1927 | ||
1928 | return ret; | |
1929 | } | |
1930 | ||
1a9f5093 | 1931 | void b43_do_release_fw(struct b43_firmware_file *fw) |
61cb5dd6 MB |
1932 | { |
1933 | release_firmware(fw->data); | |
1934 | fw->data = NULL; | |
1935 | fw->filename = NULL; | |
1936 | } | |
1937 | ||
e4d6b795 MB |
1938 | static void b43_release_firmware(struct b43_wldev *dev) |
1939 | { | |
1a9f5093 MB |
1940 | b43_do_release_fw(&dev->fw.ucode); |
1941 | b43_do_release_fw(&dev->fw.pcm); | |
1942 | b43_do_release_fw(&dev->fw.initvals); | |
1943 | b43_do_release_fw(&dev->fw.initvals_band); | |
e4d6b795 MB |
1944 | } |
1945 | ||
eb189d8b | 1946 | static void b43_print_fw_helptext(struct b43_wl *wl, bool error) |
e4d6b795 | 1947 | { |
fc68ed4f HE |
1948 | const char text[] = |
1949 | "You must go to " \ | |
1950 | "http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware " \ | |
1951 | "and download the correct firmware for this driver version. " \ | |
1952 | "Please carefully read all instructions on this website.\n"; | |
eb189d8b | 1953 | |
eb189d8b MB |
1954 | if (error) |
1955 | b43err(wl, text); | |
1956 | else | |
1957 | b43warn(wl, text); | |
e4d6b795 MB |
1958 | } |
1959 | ||
1a9f5093 MB |
1960 | int b43_do_request_fw(struct b43_request_fw_context *ctx, |
1961 | const char *name, | |
1962 | struct b43_firmware_file *fw) | |
e4d6b795 | 1963 | { |
61cb5dd6 | 1964 | const struct firmware *blob; |
e4d6b795 MB |
1965 | struct b43_fw_header *hdr; |
1966 | u32 size; | |
1967 | int err; | |
1968 | ||
61cb5dd6 MB |
1969 | if (!name) { |
1970 | /* Don't fetch anything. Free possibly cached firmware. */ | |
1a9f5093 MB |
1971 | /* FIXME: We should probably keep it anyway, to save some headache |
1972 | * on suspend/resume with multiband devices. */ | |
1973 | b43_do_release_fw(fw); | |
e4d6b795 | 1974 | return 0; |
61cb5dd6 MB |
1975 | } |
1976 | if (fw->filename) { | |
1a9f5093 MB |
1977 | if ((fw->type == ctx->req_type) && |
1978 | (strcmp(fw->filename, name) == 0)) | |
61cb5dd6 MB |
1979 | return 0; /* Already have this fw. */ |
1980 | /* Free the cached firmware first. */ | |
1a9f5093 MB |
1981 | /* FIXME: We should probably do this later after we successfully |
1982 | * got the new fw. This could reduce headache with multiband devices. | |
1983 | * We could also redesign this to cache the firmware for all possible | |
1984 | * bands all the time. */ | |
1985 | b43_do_release_fw(fw); | |
61cb5dd6 | 1986 | } |
e4d6b795 | 1987 | |
1a9f5093 MB |
1988 | switch (ctx->req_type) { |
1989 | case B43_FWTYPE_PROPRIETARY: | |
1990 | snprintf(ctx->fwname, sizeof(ctx->fwname), | |
1991 | "b43%s/%s.fw", | |
1992 | modparam_fwpostfix, name); | |
1993 | break; | |
1994 | case B43_FWTYPE_OPENSOURCE: | |
1995 | snprintf(ctx->fwname, sizeof(ctx->fwname), | |
1996 | "b43-open%s/%s.fw", | |
1997 | modparam_fwpostfix, name); | |
1998 | break; | |
1999 | default: | |
2000 | B43_WARN_ON(1); | |
2001 | return -ENOSYS; | |
2002 | } | |
2003 | err = request_firmware(&blob, ctx->fwname, ctx->dev->dev->dev); | |
68217832 | 2004 | if (err == -ENOENT) { |
1a9f5093 MB |
2005 | snprintf(ctx->errors[ctx->req_type], |
2006 | sizeof(ctx->errors[ctx->req_type]), | |
2007 | "Firmware file \"%s\" not found\n", ctx->fwname); | |
68217832 MB |
2008 | return err; |
2009 | } else if (err) { | |
1a9f5093 MB |
2010 | snprintf(ctx->errors[ctx->req_type], |
2011 | sizeof(ctx->errors[ctx->req_type]), | |
2012 | "Firmware file \"%s\" request failed (err=%d)\n", | |
2013 | ctx->fwname, err); | |
e4d6b795 MB |
2014 | return err; |
2015 | } | |
61cb5dd6 | 2016 | if (blob->size < sizeof(struct b43_fw_header)) |
e4d6b795 | 2017 | goto err_format; |
61cb5dd6 | 2018 | hdr = (struct b43_fw_header *)(blob->data); |
e4d6b795 MB |
2019 | switch (hdr->type) { |
2020 | case B43_FW_TYPE_UCODE: | |
2021 | case B43_FW_TYPE_PCM: | |
2022 | size = be32_to_cpu(hdr->size); | |
61cb5dd6 | 2023 | if (size != blob->size - sizeof(struct b43_fw_header)) |
e4d6b795 MB |
2024 | goto err_format; |
2025 | /* fallthrough */ | |
2026 | case B43_FW_TYPE_IV: | |
2027 | if (hdr->ver != 1) | |
2028 | goto err_format; | |
2029 | break; | |
2030 | default: | |
2031 | goto err_format; | |
2032 | } | |
2033 | ||
61cb5dd6 MB |
2034 | fw->data = blob; |
2035 | fw->filename = name; | |
1a9f5093 | 2036 | fw->type = ctx->req_type; |
61cb5dd6 MB |
2037 | |
2038 | return 0; | |
e4d6b795 MB |
2039 | |
2040 | err_format: | |
1a9f5093 MB |
2041 | snprintf(ctx->errors[ctx->req_type], |
2042 | sizeof(ctx->errors[ctx->req_type]), | |
2043 | "Firmware file \"%s\" format error.\n", ctx->fwname); | |
61cb5dd6 MB |
2044 | release_firmware(blob); |
2045 | ||
e4d6b795 MB |
2046 | return -EPROTO; |
2047 | } | |
2048 | ||
1a9f5093 | 2049 | static int b43_try_request_fw(struct b43_request_fw_context *ctx) |
e4d6b795 | 2050 | { |
1a9f5093 MB |
2051 | struct b43_wldev *dev = ctx->dev; |
2052 | struct b43_firmware *fw = &ctx->dev->fw; | |
2053 | const u8 rev = ctx->dev->dev->id.revision; | |
e4d6b795 MB |
2054 | const char *filename; |
2055 | u32 tmshigh; | |
2056 | int err; | |
2057 | ||
61cb5dd6 | 2058 | /* Get microcode */ |
e4d6b795 | 2059 | tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH); |
61cb5dd6 MB |
2060 | if ((rev >= 5) && (rev <= 10)) |
2061 | filename = "ucode5"; | |
2062 | else if ((rev >= 11) && (rev <= 12)) | |
2063 | filename = "ucode11"; | |
2064 | else if (rev >= 13) | |
2065 | filename = "ucode13"; | |
2066 | else | |
2067 | goto err_no_ucode; | |
1a9f5093 | 2068 | err = b43_do_request_fw(ctx, filename, &fw->ucode); |
61cb5dd6 MB |
2069 | if (err) |
2070 | goto err_load; | |
2071 | ||
2072 | /* Get PCM code */ | |
2073 | if ((rev >= 5) && (rev <= 10)) | |
2074 | filename = "pcm5"; | |
2075 | else if (rev >= 11) | |
2076 | filename = NULL; | |
2077 | else | |
2078 | goto err_no_pcm; | |
68217832 | 2079 | fw->pcm_request_failed = 0; |
1a9f5093 | 2080 | err = b43_do_request_fw(ctx, filename, &fw->pcm); |
68217832 MB |
2081 | if (err == -ENOENT) { |
2082 | /* We did not find a PCM file? Not fatal, but | |
2083 | * core rev <= 10 must do without hwcrypto then. */ | |
2084 | fw->pcm_request_failed = 1; | |
2085 | } else if (err) | |
61cb5dd6 MB |
2086 | goto err_load; |
2087 | ||
2088 | /* Get initvals */ | |
2089 | switch (dev->phy.type) { | |
2090 | case B43_PHYTYPE_A: | |
2091 | if ((rev >= 5) && (rev <= 10)) { | |
2092 | if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY) | |
2093 | filename = "a0g1initvals5"; | |
2094 | else | |
2095 | filename = "a0g0initvals5"; | |
2096 | } else | |
2097 | goto err_no_initvals; | |
2098 | break; | |
2099 | case B43_PHYTYPE_G: | |
e4d6b795 | 2100 | if ((rev >= 5) && (rev <= 10)) |
61cb5dd6 | 2101 | filename = "b0g0initvals5"; |
e4d6b795 | 2102 | else if (rev >= 13) |
e9304882 | 2103 | filename = "b0g0initvals13"; |
e4d6b795 | 2104 | else |
61cb5dd6 MB |
2105 | goto err_no_initvals; |
2106 | break; | |
2107 | case B43_PHYTYPE_N: | |
2108 | if ((rev >= 11) && (rev <= 12)) | |
2109 | filename = "n0initvals11"; | |
2110 | else | |
2111 | goto err_no_initvals; | |
2112 | break; | |
2113 | default: | |
2114 | goto err_no_initvals; | |
e4d6b795 | 2115 | } |
1a9f5093 | 2116 | err = b43_do_request_fw(ctx, filename, &fw->initvals); |
61cb5dd6 MB |
2117 | if (err) |
2118 | goto err_load; | |
2119 | ||
2120 | /* Get bandswitch initvals */ | |
2121 | switch (dev->phy.type) { | |
2122 | case B43_PHYTYPE_A: | |
2123 | if ((rev >= 5) && (rev <= 10)) { | |
2124 | if (tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY) | |
2125 | filename = "a0g1bsinitvals5"; | |
2126 | else | |
2127 | filename = "a0g0bsinitvals5"; | |
2128 | } else if (rev >= 11) | |
2129 | filename = NULL; | |
2130 | else | |
2131 | goto err_no_initvals; | |
2132 | break; | |
2133 | case B43_PHYTYPE_G: | |
e4d6b795 | 2134 | if ((rev >= 5) && (rev <= 10)) |
61cb5dd6 | 2135 | filename = "b0g0bsinitvals5"; |
e4d6b795 MB |
2136 | else if (rev >= 11) |
2137 | filename = NULL; | |
2138 | else | |
e4d6b795 | 2139 | goto err_no_initvals; |
61cb5dd6 MB |
2140 | break; |
2141 | case B43_PHYTYPE_N: | |
2142 | if ((rev >= 11) && (rev <= 12)) | |
2143 | filename = "n0bsinitvals11"; | |
2144 | else | |
e4d6b795 | 2145 | goto err_no_initvals; |
61cb5dd6 MB |
2146 | break; |
2147 | default: | |
2148 | goto err_no_initvals; | |
e4d6b795 | 2149 | } |
1a9f5093 | 2150 | err = b43_do_request_fw(ctx, filename, &fw->initvals_band); |
61cb5dd6 MB |
2151 | if (err) |
2152 | goto err_load; | |
e4d6b795 MB |
2153 | |
2154 | return 0; | |
2155 | ||
e4d6b795 | 2156 | err_no_ucode: |
1a9f5093 MB |
2157 | err = ctx->fatal_failure = -EOPNOTSUPP; |
2158 | b43err(dev->wl, "The driver does not know which firmware (ucode) " | |
2159 | "is required for your device (wl-core rev %u)\n", rev); | |
e4d6b795 MB |
2160 | goto error; |
2161 | ||
2162 | err_no_pcm: | |
1a9f5093 MB |
2163 | err = ctx->fatal_failure = -EOPNOTSUPP; |
2164 | b43err(dev->wl, "The driver does not know which firmware (PCM) " | |
2165 | "is required for your device (wl-core rev %u)\n", rev); | |
e4d6b795 MB |
2166 | goto error; |
2167 | ||
2168 | err_no_initvals: | |
1a9f5093 MB |
2169 | err = ctx->fatal_failure = -EOPNOTSUPP; |
2170 | b43err(dev->wl, "The driver does not know which firmware (initvals) " | |
2171 | "is required for your device (wl-core rev %u)\n", rev); | |
2172 | goto error; | |
2173 | ||
2174 | err_load: | |
2175 | /* We failed to load this firmware image. The error message | |
2176 | * already is in ctx->errors. Return and let our caller decide | |
2177 | * what to do. */ | |
e4d6b795 MB |
2178 | goto error; |
2179 | ||
2180 | error: | |
2181 | b43_release_firmware(dev); | |
2182 | return err; | |
2183 | } | |
2184 | ||
1a9f5093 MB |
2185 | static int b43_request_firmware(struct b43_wldev *dev) |
2186 | { | |
2187 | struct b43_request_fw_context *ctx; | |
2188 | unsigned int i; | |
2189 | int err; | |
2190 | const char *errmsg; | |
2191 | ||
2192 | ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); | |
2193 | if (!ctx) | |
2194 | return -ENOMEM; | |
2195 | ctx->dev = dev; | |
2196 | ||
2197 | ctx->req_type = B43_FWTYPE_PROPRIETARY; | |
2198 | err = b43_try_request_fw(ctx); | |
2199 | if (!err) | |
2200 | goto out; /* Successfully loaded it. */ | |
2201 | err = ctx->fatal_failure; | |
2202 | if (err) | |
2203 | goto out; | |
2204 | ||
2205 | ctx->req_type = B43_FWTYPE_OPENSOURCE; | |
2206 | err = b43_try_request_fw(ctx); | |
2207 | if (!err) | |
2208 | goto out; /* Successfully loaded it. */ | |
2209 | err = ctx->fatal_failure; | |
2210 | if (err) | |
2211 | goto out; | |
2212 | ||
2213 | /* Could not find a usable firmware. Print the errors. */ | |
2214 | for (i = 0; i < B43_NR_FWTYPES; i++) { | |
2215 | errmsg = ctx->errors[i]; | |
2216 | if (strlen(errmsg)) | |
2217 | b43err(dev->wl, errmsg); | |
2218 | } | |
2219 | b43_print_fw_helptext(dev->wl, 1); | |
2220 | err = -ENOENT; | |
2221 | ||
2222 | out: | |
2223 | kfree(ctx); | |
2224 | return err; | |
2225 | } | |
2226 | ||
e4d6b795 MB |
2227 | static int b43_upload_microcode(struct b43_wldev *dev) |
2228 | { | |
2229 | const size_t hdr_len = sizeof(struct b43_fw_header); | |
2230 | const __be32 *data; | |
2231 | unsigned int i, len; | |
2232 | u16 fwrev, fwpatch, fwdate, fwtime; | |
1f7d87b0 | 2233 | u32 tmp, macctl; |
e4d6b795 MB |
2234 | int err = 0; |
2235 | ||
1f7d87b0 MB |
2236 | /* Jump the microcode PSM to offset 0 */ |
2237 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
2238 | B43_WARN_ON(macctl & B43_MACCTL_PSM_RUN); | |
2239 | macctl |= B43_MACCTL_PSM_JMP0; | |
2240 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
2241 | /* Zero out all microcode PSM registers and shared memory. */ | |
2242 | for (i = 0; i < 64; i++) | |
2243 | b43_shm_write16(dev, B43_SHM_SCRATCH, i, 0); | |
2244 | for (i = 0; i < 4096; i += 2) | |
2245 | b43_shm_write16(dev, B43_SHM_SHARED, i, 0); | |
2246 | ||
e4d6b795 | 2247 | /* Upload Microcode. */ |
61cb5dd6 MB |
2248 | data = (__be32 *) (dev->fw.ucode.data->data + hdr_len); |
2249 | len = (dev->fw.ucode.data->size - hdr_len) / sizeof(__be32); | |
e4d6b795 MB |
2250 | b43_shm_control_word(dev, B43_SHM_UCODE | B43_SHM_AUTOINC_W, 0x0000); |
2251 | for (i = 0; i < len; i++) { | |
2252 | b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i])); | |
2253 | udelay(10); | |
2254 | } | |
2255 | ||
61cb5dd6 | 2256 | if (dev->fw.pcm.data) { |
e4d6b795 | 2257 | /* Upload PCM data. */ |
61cb5dd6 MB |
2258 | data = (__be32 *) (dev->fw.pcm.data->data + hdr_len); |
2259 | len = (dev->fw.pcm.data->size - hdr_len) / sizeof(__be32); | |
e4d6b795 MB |
2260 | b43_shm_control_word(dev, B43_SHM_HW, 0x01EA); |
2261 | b43_write32(dev, B43_MMIO_SHM_DATA, 0x00004000); | |
2262 | /* No need for autoinc bit in SHM_HW */ | |
2263 | b43_shm_control_word(dev, B43_SHM_HW, 0x01EB); | |
2264 | for (i = 0; i < len; i++) { | |
2265 | b43_write32(dev, B43_MMIO_SHM_DATA, be32_to_cpu(data[i])); | |
2266 | udelay(10); | |
2267 | } | |
2268 | } | |
2269 | ||
2270 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_ALL); | |
1f7d87b0 MB |
2271 | |
2272 | /* Start the microcode PSM */ | |
2273 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
2274 | macctl &= ~B43_MACCTL_PSM_JMP0; | |
2275 | macctl |= B43_MACCTL_PSM_RUN; | |
2276 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
e4d6b795 MB |
2277 | |
2278 | /* Wait for the microcode to load and respond */ | |
2279 | i = 0; | |
2280 | while (1) { | |
2281 | tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); | |
2282 | if (tmp == B43_IRQ_MAC_SUSPENDED) | |
2283 | break; | |
2284 | i++; | |
1f7d87b0 | 2285 | if (i >= 20) { |
e4d6b795 | 2286 | b43err(dev->wl, "Microcode not responding\n"); |
eb189d8b | 2287 | b43_print_fw_helptext(dev->wl, 1); |
e4d6b795 | 2288 | err = -ENODEV; |
1f7d87b0 MB |
2289 | goto error; |
2290 | } | |
2291 | msleep_interruptible(50); | |
2292 | if (signal_pending(current)) { | |
2293 | err = -EINTR; | |
2294 | goto error; | |
e4d6b795 | 2295 | } |
e4d6b795 MB |
2296 | } |
2297 | b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); /* dummy read */ | |
2298 | ||
2299 | /* Get and check the revisions. */ | |
2300 | fwrev = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEREV); | |
2301 | fwpatch = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEPATCH); | |
2302 | fwdate = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODEDATE); | |
2303 | fwtime = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_UCODETIME); | |
2304 | ||
2305 | if (fwrev <= 0x128) { | |
2306 | b43err(dev->wl, "YOUR FIRMWARE IS TOO OLD. Firmware from " | |
2307 | "binary drivers older than version 4.x is unsupported. " | |
2308 | "You must upgrade your firmware files.\n"); | |
eb189d8b | 2309 | b43_print_fw_helptext(dev->wl, 1); |
e4d6b795 | 2310 | err = -EOPNOTSUPP; |
1f7d87b0 | 2311 | goto error; |
e4d6b795 | 2312 | } |
e4d6b795 MB |
2313 | dev->fw.rev = fwrev; |
2314 | dev->fw.patch = fwpatch; | |
e48b0eeb MB |
2315 | dev->fw.opensource = (fwdate == 0xFFFF); |
2316 | ||
403a3a13 MB |
2317 | /* Default to use-all-queues. */ |
2318 | dev->wl->hw->queues = dev->wl->mac80211_initially_registered_queues; | |
2319 | dev->qos_enabled = !!modparam_qos; | |
2320 | /* Default to firmware/hardware crypto acceleration. */ | |
2321 | dev->hwcrypto_enabled = 1; | |
2322 | ||
e48b0eeb | 2323 | if (dev->fw.opensource) { |
403a3a13 MB |
2324 | u16 fwcapa; |
2325 | ||
e48b0eeb MB |
2326 | /* Patchlevel info is encoded in the "time" field. */ |
2327 | dev->fw.patch = fwtime; | |
403a3a13 MB |
2328 | b43info(dev->wl, "Loading OpenSource firmware version %u.%u\n", |
2329 | dev->fw.rev, dev->fw.patch); | |
2330 | ||
2331 | fwcapa = b43_fwcapa_read(dev); | |
2332 | if (!(fwcapa & B43_FWCAPA_HWCRYPTO) || dev->fw.pcm_request_failed) { | |
2333 | b43info(dev->wl, "Hardware crypto acceleration not supported by firmware\n"); | |
2334 | /* Disable hardware crypto and fall back to software crypto. */ | |
2335 | dev->hwcrypto_enabled = 0; | |
2336 | } | |
2337 | if (!(fwcapa & B43_FWCAPA_QOS)) { | |
2338 | b43info(dev->wl, "QoS not supported by firmware\n"); | |
2339 | /* Disable QoS. Tweak hw->queues to 1. It will be restored before | |
2340 | * ieee80211_unregister to make sure the networking core can | |
2341 | * properly free possible resources. */ | |
2342 | dev->wl->hw->queues = 1; | |
2343 | dev->qos_enabled = 0; | |
2344 | } | |
e48b0eeb MB |
2345 | } else { |
2346 | b43info(dev->wl, "Loading firmware version %u.%u " | |
2347 | "(20%.2i-%.2i-%.2i %.2i:%.2i:%.2i)\n", | |
2348 | fwrev, fwpatch, | |
2349 | (fwdate >> 12) & 0xF, (fwdate >> 8) & 0xF, fwdate & 0xFF, | |
2350 | (fwtime >> 11) & 0x1F, (fwtime >> 5) & 0x3F, fwtime & 0x1F); | |
68217832 MB |
2351 | if (dev->fw.pcm_request_failed) { |
2352 | b43warn(dev->wl, "No \"pcm5.fw\" firmware file found. " | |
2353 | "Hardware accelerated cryptography is disabled.\n"); | |
2354 | b43_print_fw_helptext(dev->wl, 0); | |
2355 | } | |
e48b0eeb | 2356 | } |
e4d6b795 | 2357 | |
eb189d8b | 2358 | if (b43_is_old_txhdr_format(dev)) { |
c557289c MB |
2359 | /* We're over the deadline, but we keep support for old fw |
2360 | * until it turns out to be in major conflict with something new. */ | |
eb189d8b | 2361 | b43warn(dev->wl, "You are using an old firmware image. " |
c557289c MB |
2362 | "Support for old firmware will be removed soon " |
2363 | "(official deadline was July 2008).\n"); | |
eb189d8b MB |
2364 | b43_print_fw_helptext(dev->wl, 0); |
2365 | } | |
2366 | ||
1f7d87b0 MB |
2367 | return 0; |
2368 | ||
2369 | error: | |
2370 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
2371 | macctl &= ~B43_MACCTL_PSM_RUN; | |
2372 | macctl |= B43_MACCTL_PSM_JMP0; | |
2373 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
2374 | ||
e4d6b795 MB |
2375 | return err; |
2376 | } | |
2377 | ||
2378 | static int b43_write_initvals(struct b43_wldev *dev, | |
2379 | const struct b43_iv *ivals, | |
2380 | size_t count, | |
2381 | size_t array_size) | |
2382 | { | |
2383 | const struct b43_iv *iv; | |
2384 | u16 offset; | |
2385 | size_t i; | |
2386 | bool bit32; | |
2387 | ||
2388 | BUILD_BUG_ON(sizeof(struct b43_iv) != 6); | |
2389 | iv = ivals; | |
2390 | for (i = 0; i < count; i++) { | |
2391 | if (array_size < sizeof(iv->offset_size)) | |
2392 | goto err_format; | |
2393 | array_size -= sizeof(iv->offset_size); | |
2394 | offset = be16_to_cpu(iv->offset_size); | |
2395 | bit32 = !!(offset & B43_IV_32BIT); | |
2396 | offset &= B43_IV_OFFSET_MASK; | |
2397 | if (offset >= 0x1000) | |
2398 | goto err_format; | |
2399 | if (bit32) { | |
2400 | u32 value; | |
2401 | ||
2402 | if (array_size < sizeof(iv->data.d32)) | |
2403 | goto err_format; | |
2404 | array_size -= sizeof(iv->data.d32); | |
2405 | ||
533dd1b0 | 2406 | value = get_unaligned_be32(&iv->data.d32); |
e4d6b795 MB |
2407 | b43_write32(dev, offset, value); |
2408 | ||
2409 | iv = (const struct b43_iv *)((const uint8_t *)iv + | |
2410 | sizeof(__be16) + | |
2411 | sizeof(__be32)); | |
2412 | } else { | |
2413 | u16 value; | |
2414 | ||
2415 | if (array_size < sizeof(iv->data.d16)) | |
2416 | goto err_format; | |
2417 | array_size -= sizeof(iv->data.d16); | |
2418 | ||
2419 | value = be16_to_cpu(iv->data.d16); | |
2420 | b43_write16(dev, offset, value); | |
2421 | ||
2422 | iv = (const struct b43_iv *)((const uint8_t *)iv + | |
2423 | sizeof(__be16) + | |
2424 | sizeof(__be16)); | |
2425 | } | |
2426 | } | |
2427 | if (array_size) | |
2428 | goto err_format; | |
2429 | ||
2430 | return 0; | |
2431 | ||
2432 | err_format: | |
2433 | b43err(dev->wl, "Initial Values Firmware file-format error.\n"); | |
eb189d8b | 2434 | b43_print_fw_helptext(dev->wl, 1); |
e4d6b795 MB |
2435 | |
2436 | return -EPROTO; | |
2437 | } | |
2438 | ||
2439 | static int b43_upload_initvals(struct b43_wldev *dev) | |
2440 | { | |
2441 | const size_t hdr_len = sizeof(struct b43_fw_header); | |
2442 | const struct b43_fw_header *hdr; | |
2443 | struct b43_firmware *fw = &dev->fw; | |
2444 | const struct b43_iv *ivals; | |
2445 | size_t count; | |
2446 | int err; | |
2447 | ||
61cb5dd6 MB |
2448 | hdr = (const struct b43_fw_header *)(fw->initvals.data->data); |
2449 | ivals = (const struct b43_iv *)(fw->initvals.data->data + hdr_len); | |
e4d6b795 MB |
2450 | count = be32_to_cpu(hdr->size); |
2451 | err = b43_write_initvals(dev, ivals, count, | |
61cb5dd6 | 2452 | fw->initvals.data->size - hdr_len); |
e4d6b795 MB |
2453 | if (err) |
2454 | goto out; | |
61cb5dd6 MB |
2455 | if (fw->initvals_band.data) { |
2456 | hdr = (const struct b43_fw_header *)(fw->initvals_band.data->data); | |
2457 | ivals = (const struct b43_iv *)(fw->initvals_band.data->data + hdr_len); | |
e4d6b795 MB |
2458 | count = be32_to_cpu(hdr->size); |
2459 | err = b43_write_initvals(dev, ivals, count, | |
61cb5dd6 | 2460 | fw->initvals_band.data->size - hdr_len); |
e4d6b795 MB |
2461 | if (err) |
2462 | goto out; | |
2463 | } | |
2464 | out: | |
2465 | ||
2466 | return err; | |
2467 | } | |
2468 | ||
2469 | /* Initialize the GPIOs | |
2470 | * http://bcm-specs.sipsolutions.net/GPIO | |
2471 | */ | |
2472 | static int b43_gpio_init(struct b43_wldev *dev) | |
2473 | { | |
2474 | struct ssb_bus *bus = dev->dev->bus; | |
2475 | struct ssb_device *gpiodev, *pcidev = NULL; | |
2476 | u32 mask, set; | |
2477 | ||
2478 | b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) | |
2479 | & ~B43_MACCTL_GPOUTSMSK); | |
2480 | ||
e4d6b795 MB |
2481 | b43_write16(dev, B43_MMIO_GPIO_MASK, b43_read16(dev, B43_MMIO_GPIO_MASK) |
2482 | | 0x000F); | |
2483 | ||
2484 | mask = 0x0000001F; | |
2485 | set = 0x0000000F; | |
2486 | if (dev->dev->bus->chip_id == 0x4301) { | |
2487 | mask |= 0x0060; | |
2488 | set |= 0x0060; | |
2489 | } | |
2490 | if (0 /* FIXME: conditional unknown */ ) { | |
2491 | b43_write16(dev, B43_MMIO_GPIO_MASK, | |
2492 | b43_read16(dev, B43_MMIO_GPIO_MASK) | |
2493 | | 0x0100); | |
2494 | mask |= 0x0180; | |
2495 | set |= 0x0180; | |
2496 | } | |
95de2841 | 2497 | if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL) { |
e4d6b795 MB |
2498 | b43_write16(dev, B43_MMIO_GPIO_MASK, |
2499 | b43_read16(dev, B43_MMIO_GPIO_MASK) | |
2500 | | 0x0200); | |
2501 | mask |= 0x0200; | |
2502 | set |= 0x0200; | |
2503 | } | |
2504 | if (dev->dev->id.revision >= 2) | |
2505 | mask |= 0x0010; /* FIXME: This is redundant. */ | |
2506 | ||
2507 | #ifdef CONFIG_SSB_DRIVER_PCICORE | |
2508 | pcidev = bus->pcicore.dev; | |
2509 | #endif | |
2510 | gpiodev = bus->chipco.dev ? : pcidev; | |
2511 | if (!gpiodev) | |
2512 | return 0; | |
2513 | ssb_write32(gpiodev, B43_GPIO_CONTROL, | |
2514 | (ssb_read32(gpiodev, B43_GPIO_CONTROL) | |
2515 | & mask) | set); | |
2516 | ||
2517 | return 0; | |
2518 | } | |
2519 | ||
2520 | /* Turn off all GPIO stuff. Call this on module unload, for example. */ | |
2521 | static void b43_gpio_cleanup(struct b43_wldev *dev) | |
2522 | { | |
2523 | struct ssb_bus *bus = dev->dev->bus; | |
2524 | struct ssb_device *gpiodev, *pcidev = NULL; | |
2525 | ||
2526 | #ifdef CONFIG_SSB_DRIVER_PCICORE | |
2527 | pcidev = bus->pcicore.dev; | |
2528 | #endif | |
2529 | gpiodev = bus->chipco.dev ? : pcidev; | |
2530 | if (!gpiodev) | |
2531 | return; | |
2532 | ssb_write32(gpiodev, B43_GPIO_CONTROL, 0); | |
2533 | } | |
2534 | ||
2535 | /* http://bcm-specs.sipsolutions.net/EnableMac */ | |
f5eda47f | 2536 | void b43_mac_enable(struct b43_wldev *dev) |
e4d6b795 | 2537 | { |
923fd703 MB |
2538 | if (b43_debug(dev, B43_DBG_FIRMWARE)) { |
2539 | u16 fwstate; | |
2540 | ||
2541 | fwstate = b43_shm_read16(dev, B43_SHM_SHARED, | |
2542 | B43_SHM_SH_UCODESTAT); | |
2543 | if ((fwstate != B43_SHM_SH_UCODESTAT_SUSP) && | |
2544 | (fwstate != B43_SHM_SH_UCODESTAT_SLEEP)) { | |
2545 | b43err(dev->wl, "b43_mac_enable(): The firmware " | |
2546 | "should be suspended, but current state is %u\n", | |
2547 | fwstate); | |
2548 | } | |
2549 | } | |
2550 | ||
e4d6b795 MB |
2551 | dev->mac_suspended--; |
2552 | B43_WARN_ON(dev->mac_suspended < 0); | |
2553 | if (dev->mac_suspended == 0) { | |
2554 | b43_write32(dev, B43_MMIO_MACCTL, | |
2555 | b43_read32(dev, B43_MMIO_MACCTL) | |
2556 | | B43_MACCTL_ENABLED); | |
2557 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, | |
2558 | B43_IRQ_MAC_SUSPENDED); | |
2559 | /* Commit writes */ | |
2560 | b43_read32(dev, B43_MMIO_MACCTL); | |
2561 | b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); | |
2562 | b43_power_saving_ctl_bits(dev, 0); | |
2563 | } | |
2564 | } | |
2565 | ||
2566 | /* http://bcm-specs.sipsolutions.net/SuspendMAC */ | |
f5eda47f | 2567 | void b43_mac_suspend(struct b43_wldev *dev) |
e4d6b795 MB |
2568 | { |
2569 | int i; | |
2570 | u32 tmp; | |
2571 | ||
05b64b36 | 2572 | might_sleep(); |
e4d6b795 | 2573 | B43_WARN_ON(dev->mac_suspended < 0); |
05b64b36 | 2574 | |
e4d6b795 MB |
2575 | if (dev->mac_suspended == 0) { |
2576 | b43_power_saving_ctl_bits(dev, B43_PS_AWAKE); | |
2577 | b43_write32(dev, B43_MMIO_MACCTL, | |
2578 | b43_read32(dev, B43_MMIO_MACCTL) | |
2579 | & ~B43_MACCTL_ENABLED); | |
2580 | /* force pci to flush the write */ | |
2581 | b43_read32(dev, B43_MMIO_MACCTL); | |
ba380013 MB |
2582 | for (i = 35; i; i--) { |
2583 | tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); | |
2584 | if (tmp & B43_IRQ_MAC_SUSPENDED) | |
2585 | goto out; | |
2586 | udelay(10); | |
2587 | } | |
2588 | /* Hm, it seems this will take some time. Use msleep(). */ | |
05b64b36 | 2589 | for (i = 40; i; i--) { |
e4d6b795 MB |
2590 | tmp = b43_read32(dev, B43_MMIO_GEN_IRQ_REASON); |
2591 | if (tmp & B43_IRQ_MAC_SUSPENDED) | |
2592 | goto out; | |
05b64b36 | 2593 | msleep(1); |
e4d6b795 MB |
2594 | } |
2595 | b43err(dev->wl, "MAC suspend failed\n"); | |
2596 | } | |
05b64b36 | 2597 | out: |
e4d6b795 MB |
2598 | dev->mac_suspended++; |
2599 | } | |
2600 | ||
2601 | static void b43_adjust_opmode(struct b43_wldev *dev) | |
2602 | { | |
2603 | struct b43_wl *wl = dev->wl; | |
2604 | u32 ctl; | |
2605 | u16 cfp_pretbtt; | |
2606 | ||
2607 | ctl = b43_read32(dev, B43_MMIO_MACCTL); | |
2608 | /* Reset status to STA infrastructure mode. */ | |
2609 | ctl &= ~B43_MACCTL_AP; | |
2610 | ctl &= ~B43_MACCTL_KEEP_CTL; | |
2611 | ctl &= ~B43_MACCTL_KEEP_BADPLCP; | |
2612 | ctl &= ~B43_MACCTL_KEEP_BAD; | |
2613 | ctl &= ~B43_MACCTL_PROMISC; | |
4150c572 | 2614 | ctl &= ~B43_MACCTL_BEACPROMISC; |
e4d6b795 MB |
2615 | ctl |= B43_MACCTL_INFRA; |
2616 | ||
05c914fe JB |
2617 | if (b43_is_mode(wl, NL80211_IFTYPE_AP) || |
2618 | b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT)) | |
4150c572 | 2619 | ctl |= B43_MACCTL_AP; |
05c914fe | 2620 | else if (b43_is_mode(wl, NL80211_IFTYPE_ADHOC)) |
4150c572 JB |
2621 | ctl &= ~B43_MACCTL_INFRA; |
2622 | ||
2623 | if (wl->filter_flags & FIF_CONTROL) | |
e4d6b795 | 2624 | ctl |= B43_MACCTL_KEEP_CTL; |
4150c572 JB |
2625 | if (wl->filter_flags & FIF_FCSFAIL) |
2626 | ctl |= B43_MACCTL_KEEP_BAD; | |
2627 | if (wl->filter_flags & FIF_PLCPFAIL) | |
2628 | ctl |= B43_MACCTL_KEEP_BADPLCP; | |
2629 | if (wl->filter_flags & FIF_PROMISC_IN_BSS) | |
e4d6b795 | 2630 | ctl |= B43_MACCTL_PROMISC; |
4150c572 JB |
2631 | if (wl->filter_flags & FIF_BCN_PRBRESP_PROMISC) |
2632 | ctl |= B43_MACCTL_BEACPROMISC; | |
2633 | ||
e4d6b795 MB |
2634 | /* Workaround: On old hardware the HW-MAC-address-filter |
2635 | * doesn't work properly, so always run promisc in filter | |
2636 | * it in software. */ | |
2637 | if (dev->dev->id.revision <= 4) | |
2638 | ctl |= B43_MACCTL_PROMISC; | |
2639 | ||
2640 | b43_write32(dev, B43_MMIO_MACCTL, ctl); | |
2641 | ||
2642 | cfp_pretbtt = 2; | |
2643 | if ((ctl & B43_MACCTL_INFRA) && !(ctl & B43_MACCTL_AP)) { | |
2644 | if (dev->dev->bus->chip_id == 0x4306 && | |
2645 | dev->dev->bus->chip_rev == 3) | |
2646 | cfp_pretbtt = 100; | |
2647 | else | |
2648 | cfp_pretbtt = 50; | |
2649 | } | |
2650 | b43_write16(dev, 0x612, cfp_pretbtt); | |
2651 | } | |
2652 | ||
2653 | static void b43_rate_memory_write(struct b43_wldev *dev, u16 rate, int is_ofdm) | |
2654 | { | |
2655 | u16 offset; | |
2656 | ||
2657 | if (is_ofdm) { | |
2658 | offset = 0x480; | |
2659 | offset += (b43_plcp_get_ratecode_ofdm(rate) & 0x000F) * 2; | |
2660 | } else { | |
2661 | offset = 0x4C0; | |
2662 | offset += (b43_plcp_get_ratecode_cck(rate) & 0x000F) * 2; | |
2663 | } | |
2664 | b43_shm_write16(dev, B43_SHM_SHARED, offset + 0x20, | |
2665 | b43_shm_read16(dev, B43_SHM_SHARED, offset)); | |
2666 | } | |
2667 | ||
2668 | static void b43_rate_memory_init(struct b43_wldev *dev) | |
2669 | { | |
2670 | switch (dev->phy.type) { | |
2671 | case B43_PHYTYPE_A: | |
2672 | case B43_PHYTYPE_G: | |
53a6e234 | 2673 | case B43_PHYTYPE_N: |
e4d6b795 MB |
2674 | b43_rate_memory_write(dev, B43_OFDM_RATE_6MB, 1); |
2675 | b43_rate_memory_write(dev, B43_OFDM_RATE_12MB, 1); | |
2676 | b43_rate_memory_write(dev, B43_OFDM_RATE_18MB, 1); | |
2677 | b43_rate_memory_write(dev, B43_OFDM_RATE_24MB, 1); | |
2678 | b43_rate_memory_write(dev, B43_OFDM_RATE_36MB, 1); | |
2679 | b43_rate_memory_write(dev, B43_OFDM_RATE_48MB, 1); | |
2680 | b43_rate_memory_write(dev, B43_OFDM_RATE_54MB, 1); | |
2681 | if (dev->phy.type == B43_PHYTYPE_A) | |
2682 | break; | |
2683 | /* fallthrough */ | |
2684 | case B43_PHYTYPE_B: | |
2685 | b43_rate_memory_write(dev, B43_CCK_RATE_1MB, 0); | |
2686 | b43_rate_memory_write(dev, B43_CCK_RATE_2MB, 0); | |
2687 | b43_rate_memory_write(dev, B43_CCK_RATE_5MB, 0); | |
2688 | b43_rate_memory_write(dev, B43_CCK_RATE_11MB, 0); | |
2689 | break; | |
2690 | default: | |
2691 | B43_WARN_ON(1); | |
2692 | } | |
2693 | } | |
2694 | ||
5042c507 MB |
2695 | /* Set the default values for the PHY TX Control Words. */ |
2696 | static void b43_set_phytxctl_defaults(struct b43_wldev *dev) | |
2697 | { | |
2698 | u16 ctl = 0; | |
2699 | ||
2700 | ctl |= B43_TXH_PHY_ENC_CCK; | |
2701 | ctl |= B43_TXH_PHY_ANT01AUTO; | |
2702 | ctl |= B43_TXH_PHY_TXPWR; | |
2703 | ||
2704 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_BEACPHYCTL, ctl); | |
2705 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, ctl); | |
2706 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, ctl); | |
2707 | } | |
2708 | ||
e4d6b795 MB |
2709 | /* Set the TX-Antenna for management frames sent by firmware. */ |
2710 | static void b43_mgmtframe_txantenna(struct b43_wldev *dev, int antenna) | |
2711 | { | |
5042c507 | 2712 | u16 ant; |
e4d6b795 MB |
2713 | u16 tmp; |
2714 | ||
5042c507 | 2715 | ant = b43_antenna_to_phyctl(antenna); |
e4d6b795 | 2716 | |
e4d6b795 MB |
2717 | /* For ACK/CTS */ |
2718 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL); | |
eb189d8b | 2719 | tmp = (tmp & ~B43_TXH_PHY_ANT) | ant; |
e4d6b795 MB |
2720 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_ACKCTSPHYCTL, tmp); |
2721 | /* For Probe Resposes */ | |
2722 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL); | |
eb189d8b | 2723 | tmp = (tmp & ~B43_TXH_PHY_ANT) | ant; |
e4d6b795 MB |
2724 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRPHYCTL, tmp); |
2725 | } | |
2726 | ||
2727 | /* This is the opposite of b43_chip_init() */ | |
2728 | static void b43_chip_exit(struct b43_wldev *dev) | |
2729 | { | |
fb11137a | 2730 | b43_phy_exit(dev); |
e4d6b795 MB |
2731 | b43_gpio_cleanup(dev); |
2732 | /* firmware is released later */ | |
2733 | } | |
2734 | ||
2735 | /* Initialize the chip | |
2736 | * http://bcm-specs.sipsolutions.net/ChipInit | |
2737 | */ | |
2738 | static int b43_chip_init(struct b43_wldev *dev) | |
2739 | { | |
2740 | struct b43_phy *phy = &dev->phy; | |
ef1a628d | 2741 | int err; |
1f7d87b0 | 2742 | u32 value32, macctl; |
e4d6b795 MB |
2743 | u16 value16; |
2744 | ||
1f7d87b0 MB |
2745 | /* Initialize the MAC control */ |
2746 | macctl = B43_MACCTL_IHR_ENABLED | B43_MACCTL_SHM_ENABLED; | |
2747 | if (dev->phy.gmode) | |
2748 | macctl |= B43_MACCTL_GMODE; | |
2749 | macctl |= B43_MACCTL_INFRA; | |
2750 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
e4d6b795 MB |
2751 | |
2752 | err = b43_request_firmware(dev); | |
2753 | if (err) | |
2754 | goto out; | |
2755 | err = b43_upload_microcode(dev); | |
2756 | if (err) | |
2757 | goto out; /* firmware is released later */ | |
2758 | ||
2759 | err = b43_gpio_init(dev); | |
2760 | if (err) | |
2761 | goto out; /* firmware is released later */ | |
21954c36 | 2762 | |
e4d6b795 MB |
2763 | err = b43_upload_initvals(dev); |
2764 | if (err) | |
1a8d1227 | 2765 | goto err_gpio_clean; |
e4d6b795 | 2766 | |
0b7dcd96 MB |
2767 | /* Turn the Analog on and initialize the PHY. */ |
2768 | phy->ops->switch_analog(dev, 1); | |
e4d6b795 MB |
2769 | err = b43_phy_init(dev); |
2770 | if (err) | |
ef1a628d | 2771 | goto err_gpio_clean; |
e4d6b795 | 2772 | |
ef1a628d MB |
2773 | /* Disable Interference Mitigation. */ |
2774 | if (phy->ops->interf_mitigation) | |
2775 | phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE); | |
e4d6b795 | 2776 | |
ef1a628d MB |
2777 | /* Select the antennae */ |
2778 | if (phy->ops->set_rx_antenna) | |
2779 | phy->ops->set_rx_antenna(dev, B43_ANTENNA_DEFAULT); | |
e4d6b795 MB |
2780 | b43_mgmtframe_txantenna(dev, B43_ANTENNA_DEFAULT); |
2781 | ||
2782 | if (phy->type == B43_PHYTYPE_B) { | |
2783 | value16 = b43_read16(dev, 0x005E); | |
2784 | value16 |= 0x0004; | |
2785 | b43_write16(dev, 0x005E, value16); | |
2786 | } | |
2787 | b43_write32(dev, 0x0100, 0x01000000); | |
2788 | if (dev->dev->id.revision < 5) | |
2789 | b43_write32(dev, 0x010C, 0x01000000); | |
2790 | ||
2791 | b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) | |
2792 | & ~B43_MACCTL_INFRA); | |
2793 | b43_write32(dev, B43_MMIO_MACCTL, b43_read32(dev, B43_MMIO_MACCTL) | |
2794 | | B43_MACCTL_INFRA); | |
e4d6b795 | 2795 | |
e4d6b795 MB |
2796 | /* Probe Response Timeout value */ |
2797 | /* FIXME: Default to 0, has to be set by ioctl probably... :-/ */ | |
2798 | b43_shm_write16(dev, B43_SHM_SHARED, 0x0074, 0x0000); | |
2799 | ||
2800 | /* Initially set the wireless operation mode. */ | |
2801 | b43_adjust_opmode(dev); | |
2802 | ||
2803 | if (dev->dev->id.revision < 3) { | |
2804 | b43_write16(dev, 0x060E, 0x0000); | |
2805 | b43_write16(dev, 0x0610, 0x8000); | |
2806 | b43_write16(dev, 0x0604, 0x0000); | |
2807 | b43_write16(dev, 0x0606, 0x0200); | |
2808 | } else { | |
2809 | b43_write32(dev, 0x0188, 0x80000000); | |
2810 | b43_write32(dev, 0x018C, 0x02000000); | |
2811 | } | |
2812 | b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, 0x00004000); | |
2813 | b43_write32(dev, B43_MMIO_DMA0_IRQ_MASK, 0x0001DC00); | |
2814 | b43_write32(dev, B43_MMIO_DMA1_IRQ_MASK, 0x0000DC00); | |
2815 | b43_write32(dev, B43_MMIO_DMA2_IRQ_MASK, 0x0000DC00); | |
2816 | b43_write32(dev, B43_MMIO_DMA3_IRQ_MASK, 0x0001DC00); | |
2817 | b43_write32(dev, B43_MMIO_DMA4_IRQ_MASK, 0x0000DC00); | |
2818 | b43_write32(dev, B43_MMIO_DMA5_IRQ_MASK, 0x0000DC00); | |
2819 | ||
2820 | value32 = ssb_read32(dev->dev, SSB_TMSLOW); | |
2821 | value32 |= 0x00100000; | |
2822 | ssb_write32(dev->dev, SSB_TMSLOW, value32); | |
2823 | ||
2824 | b43_write16(dev, B43_MMIO_POWERUP_DELAY, | |
2825 | dev->dev->bus->chipco.fast_pwrup_delay); | |
2826 | ||
2827 | err = 0; | |
2828 | b43dbg(dev->wl, "Chip initialized\n"); | |
21954c36 | 2829 | out: |
e4d6b795 MB |
2830 | return err; |
2831 | ||
1a8d1227 | 2832 | err_gpio_clean: |
e4d6b795 | 2833 | b43_gpio_cleanup(dev); |
21954c36 | 2834 | return err; |
e4d6b795 MB |
2835 | } |
2836 | ||
e4d6b795 MB |
2837 | static void b43_periodic_every60sec(struct b43_wldev *dev) |
2838 | { | |
ef1a628d | 2839 | const struct b43_phy_operations *ops = dev->phy.ops; |
e4d6b795 | 2840 | |
ef1a628d MB |
2841 | if (ops->pwork_60sec) |
2842 | ops->pwork_60sec(dev); | |
18c8adeb MB |
2843 | |
2844 | /* Force check the TX power emission now. */ | |
2845 | b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME); | |
e4d6b795 MB |
2846 | } |
2847 | ||
2848 | static void b43_periodic_every30sec(struct b43_wldev *dev) | |
2849 | { | |
2850 | /* Update device statistics. */ | |
2851 | b43_calculate_link_quality(dev); | |
2852 | } | |
2853 | ||
2854 | static void b43_periodic_every15sec(struct b43_wldev *dev) | |
2855 | { | |
2856 | struct b43_phy *phy = &dev->phy; | |
9b839a74 MB |
2857 | u16 wdr; |
2858 | ||
2859 | if (dev->fw.opensource) { | |
2860 | /* Check if the firmware is still alive. | |
2861 | * It will reset the watchdog counter to 0 in its idle loop. */ | |
2862 | wdr = b43_shm_read16(dev, B43_SHM_SCRATCH, B43_WATCHDOG_REG); | |
2863 | if (unlikely(wdr)) { | |
2864 | b43err(dev->wl, "Firmware watchdog: The firmware died!\n"); | |
2865 | b43_controller_restart(dev, "Firmware watchdog"); | |
2866 | return; | |
2867 | } else { | |
2868 | b43_shm_write16(dev, B43_SHM_SCRATCH, | |
2869 | B43_WATCHDOG_REG, 1); | |
2870 | } | |
2871 | } | |
e4d6b795 | 2872 | |
ef1a628d MB |
2873 | if (phy->ops->pwork_15sec) |
2874 | phy->ops->pwork_15sec(dev); | |
2875 | ||
00e0b8cb SB |
2876 | atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT); |
2877 | wmb(); | |
e4d6b795 MB |
2878 | } |
2879 | ||
e4d6b795 MB |
2880 | static void do_periodic_work(struct b43_wldev *dev) |
2881 | { | |
2882 | unsigned int state; | |
2883 | ||
2884 | state = dev->periodic_state; | |
42bb4cd5 | 2885 | if (state % 4 == 0) |
e4d6b795 | 2886 | b43_periodic_every60sec(dev); |
42bb4cd5 | 2887 | if (state % 2 == 0) |
e4d6b795 | 2888 | b43_periodic_every30sec(dev); |
42bb4cd5 | 2889 | b43_periodic_every15sec(dev); |
e4d6b795 MB |
2890 | } |
2891 | ||
05b64b36 MB |
2892 | /* Periodic work locking policy: |
2893 | * The whole periodic work handler is protected by | |
2894 | * wl->mutex. If another lock is needed somewhere in the | |
2895 | * pwork callchain, it's aquired in-place, where it's needed. | |
e4d6b795 | 2896 | */ |
e4d6b795 MB |
2897 | static void b43_periodic_work_handler(struct work_struct *work) |
2898 | { | |
05b64b36 MB |
2899 | struct b43_wldev *dev = container_of(work, struct b43_wldev, |
2900 | periodic_work.work); | |
2901 | struct b43_wl *wl = dev->wl; | |
2902 | unsigned long delay; | |
e4d6b795 | 2903 | |
05b64b36 | 2904 | mutex_lock(&wl->mutex); |
e4d6b795 MB |
2905 | |
2906 | if (unlikely(b43_status(dev) != B43_STAT_STARTED)) | |
2907 | goto out; | |
2908 | if (b43_debug(dev, B43_DBG_PWORK_STOP)) | |
2909 | goto out_requeue; | |
2910 | ||
05b64b36 | 2911 | do_periodic_work(dev); |
e4d6b795 | 2912 | |
e4d6b795 | 2913 | dev->periodic_state++; |
42bb4cd5 | 2914 | out_requeue: |
e4d6b795 MB |
2915 | if (b43_debug(dev, B43_DBG_PWORK_FAST)) |
2916 | delay = msecs_to_jiffies(50); | |
2917 | else | |
82cd682d | 2918 | delay = round_jiffies_relative(HZ * 15); |
05b64b36 | 2919 | queue_delayed_work(wl->hw->workqueue, &dev->periodic_work, delay); |
42bb4cd5 | 2920 | out: |
05b64b36 | 2921 | mutex_unlock(&wl->mutex); |
e4d6b795 MB |
2922 | } |
2923 | ||
2924 | static void b43_periodic_tasks_setup(struct b43_wldev *dev) | |
2925 | { | |
2926 | struct delayed_work *work = &dev->periodic_work; | |
2927 | ||
2928 | dev->periodic_state = 0; | |
2929 | INIT_DELAYED_WORK(work, b43_periodic_work_handler); | |
2930 | queue_delayed_work(dev->wl->hw->workqueue, work, 0); | |
2931 | } | |
2932 | ||
f3dd3fcc | 2933 | /* Check if communication with the device works correctly. */ |
e4d6b795 MB |
2934 | static int b43_validate_chipaccess(struct b43_wldev *dev) |
2935 | { | |
f3dd3fcc | 2936 | u32 v, backup; |
e4d6b795 | 2937 | |
f3dd3fcc MB |
2938 | backup = b43_shm_read32(dev, B43_SHM_SHARED, 0); |
2939 | ||
2940 | /* Check for read/write and endianness problems. */ | |
e4d6b795 MB |
2941 | b43_shm_write32(dev, B43_SHM_SHARED, 0, 0x55AAAA55); |
2942 | if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0x55AAAA55) | |
2943 | goto error; | |
f3dd3fcc MB |
2944 | b43_shm_write32(dev, B43_SHM_SHARED, 0, 0xAA5555AA); |
2945 | if (b43_shm_read32(dev, B43_SHM_SHARED, 0) != 0xAA5555AA) | |
e4d6b795 MB |
2946 | goto error; |
2947 | ||
f3dd3fcc MB |
2948 | b43_shm_write32(dev, B43_SHM_SHARED, 0, backup); |
2949 | ||
2950 | if ((dev->dev->id.revision >= 3) && (dev->dev->id.revision <= 10)) { | |
2951 | /* The 32bit register shadows the two 16bit registers | |
2952 | * with update sideeffects. Validate this. */ | |
2953 | b43_write16(dev, B43_MMIO_TSF_CFP_START, 0xAAAA); | |
2954 | b43_write32(dev, B43_MMIO_TSF_CFP_START, 0xCCCCBBBB); | |
2955 | if (b43_read16(dev, B43_MMIO_TSF_CFP_START_LOW) != 0xBBBB) | |
2956 | goto error; | |
2957 | if (b43_read16(dev, B43_MMIO_TSF_CFP_START_HIGH) != 0xCCCC) | |
2958 | goto error; | |
2959 | } | |
2960 | b43_write32(dev, B43_MMIO_TSF_CFP_START, 0); | |
2961 | ||
2962 | v = b43_read32(dev, B43_MMIO_MACCTL); | |
2963 | v |= B43_MACCTL_GMODE; | |
2964 | if (v != (B43_MACCTL_GMODE | B43_MACCTL_IHR_ENABLED)) | |
e4d6b795 MB |
2965 | goto error; |
2966 | ||
2967 | return 0; | |
f3dd3fcc | 2968 | error: |
e4d6b795 MB |
2969 | b43err(dev->wl, "Failed to validate the chipaccess\n"); |
2970 | return -ENODEV; | |
2971 | } | |
2972 | ||
2973 | static void b43_security_init(struct b43_wldev *dev) | |
2974 | { | |
2975 | dev->max_nr_keys = (dev->dev->id.revision >= 5) ? 58 : 20; | |
2976 | B43_WARN_ON(dev->max_nr_keys > ARRAY_SIZE(dev->key)); | |
2977 | dev->ktp = b43_shm_read16(dev, B43_SHM_SHARED, B43_SHM_SH_KTP); | |
2978 | /* KTP is a word address, but we address SHM bytewise. | |
2979 | * So multiply by two. | |
2980 | */ | |
2981 | dev->ktp *= 2; | |
2982 | if (dev->dev->id.revision >= 5) { | |
2983 | /* Number of RCMTA address slots */ | |
2984 | b43_write16(dev, B43_MMIO_RCMTA_COUNT, dev->max_nr_keys - 8); | |
2985 | } | |
2986 | b43_clear_keys(dev); | |
2987 | } | |
2988 | ||
616de35d | 2989 | #ifdef CONFIG_B43_HWRNG |
99da185a | 2990 | static int b43_rng_read(struct hwrng *rng, u32 *data) |
e4d6b795 MB |
2991 | { |
2992 | struct b43_wl *wl = (struct b43_wl *)rng->priv; | |
2993 | unsigned long flags; | |
2994 | ||
2995 | /* Don't take wl->mutex here, as it could deadlock with | |
2996 | * hwrng internal locking. It's not needed to take | |
2997 | * wl->mutex here, anyway. */ | |
2998 | ||
2999 | spin_lock_irqsave(&wl->irq_lock, flags); | |
3000 | *data = b43_read16(wl->current_dev, B43_MMIO_RNG); | |
3001 | spin_unlock_irqrestore(&wl->irq_lock, flags); | |
3002 | ||
3003 | return (sizeof(u16)); | |
3004 | } | |
616de35d | 3005 | #endif /* CONFIG_B43_HWRNG */ |
e4d6b795 | 3006 | |
b844eba2 | 3007 | static void b43_rng_exit(struct b43_wl *wl) |
e4d6b795 | 3008 | { |
616de35d | 3009 | #ifdef CONFIG_B43_HWRNG |
e4d6b795 | 3010 | if (wl->rng_initialized) |
b844eba2 | 3011 | hwrng_unregister(&wl->rng); |
616de35d | 3012 | #endif /* CONFIG_B43_HWRNG */ |
e4d6b795 MB |
3013 | } |
3014 | ||
3015 | static int b43_rng_init(struct b43_wl *wl) | |
3016 | { | |
616de35d | 3017 | int err = 0; |
e4d6b795 | 3018 | |
616de35d | 3019 | #ifdef CONFIG_B43_HWRNG |
e4d6b795 MB |
3020 | snprintf(wl->rng_name, ARRAY_SIZE(wl->rng_name), |
3021 | "%s_%s", KBUILD_MODNAME, wiphy_name(wl->hw->wiphy)); | |
3022 | wl->rng.name = wl->rng_name; | |
3023 | wl->rng.data_read = b43_rng_read; | |
3024 | wl->rng.priv = (unsigned long)wl; | |
3025 | wl->rng_initialized = 1; | |
3026 | err = hwrng_register(&wl->rng); | |
3027 | if (err) { | |
3028 | wl->rng_initialized = 0; | |
3029 | b43err(wl, "Failed to register the random " | |
3030 | "number generator (%d)\n", err); | |
3031 | } | |
616de35d | 3032 | #endif /* CONFIG_B43_HWRNG */ |
e4d6b795 MB |
3033 | |
3034 | return err; | |
3035 | } | |
3036 | ||
40faacc4 | 3037 | static int b43_op_tx(struct ieee80211_hw *hw, |
e039fa4a | 3038 | struct sk_buff *skb) |
e4d6b795 MB |
3039 | { |
3040 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3041 | struct b43_wldev *dev = wl->current_dev; | |
21a75d77 MB |
3042 | unsigned long flags; |
3043 | int err; | |
e4d6b795 | 3044 | |
5100d5ac MB |
3045 | if (unlikely(skb->len < 2 + 2 + 6)) { |
3046 | /* Too short, this can't be a valid frame. */ | |
c9e8eae0 | 3047 | goto drop_packet; |
5100d5ac MB |
3048 | } |
3049 | B43_WARN_ON(skb_shinfo(skb)->nr_frags); | |
e4d6b795 | 3050 | if (unlikely(!dev)) |
c9e8eae0 | 3051 | goto drop_packet; |
21a75d77 MB |
3052 | |
3053 | /* Transmissions on seperate queues can run concurrently. */ | |
3054 | read_lock_irqsave(&wl->tx_lock, flags); | |
3055 | ||
3056 | err = -ENODEV; | |
3057 | if (likely(b43_status(dev) >= B43_STAT_STARTED)) { | |
3058 | if (b43_using_pio_transfers(dev)) | |
e039fa4a | 3059 | err = b43_pio_tx(dev, skb); |
21a75d77 | 3060 | else |
e039fa4a | 3061 | err = b43_dma_tx(dev, skb); |
21a75d77 MB |
3062 | } |
3063 | ||
3064 | read_unlock_irqrestore(&wl->tx_lock, flags); | |
3065 | ||
e4d6b795 | 3066 | if (unlikely(err)) |
c9e8eae0 MB |
3067 | goto drop_packet; |
3068 | return NETDEV_TX_OK; | |
3069 | ||
3070 | drop_packet: | |
3071 | /* We can not transmit this packet. Drop it. */ | |
3072 | dev_kfree_skb_any(skb); | |
e4d6b795 MB |
3073 | return NETDEV_TX_OK; |
3074 | } | |
3075 | ||
e6f5b934 MB |
3076 | /* Locking: wl->irq_lock */ |
3077 | static void b43_qos_params_upload(struct b43_wldev *dev, | |
3078 | const struct ieee80211_tx_queue_params *p, | |
3079 | u16 shm_offset) | |
3080 | { | |
3081 | u16 params[B43_NR_QOSPARAMS]; | |
0b57664c | 3082 | int bslots, tmp; |
e6f5b934 MB |
3083 | unsigned int i; |
3084 | ||
0b57664c | 3085 | bslots = b43_read16(dev, B43_MMIO_RNG) & p->cw_min; |
e6f5b934 MB |
3086 | |
3087 | memset(¶ms, 0, sizeof(params)); | |
3088 | ||
3089 | params[B43_QOSPARAM_TXOP] = p->txop * 32; | |
0b57664c JB |
3090 | params[B43_QOSPARAM_CWMIN] = p->cw_min; |
3091 | params[B43_QOSPARAM_CWMAX] = p->cw_max; | |
3092 | params[B43_QOSPARAM_CWCUR] = p->cw_min; | |
3093 | params[B43_QOSPARAM_AIFS] = p->aifs; | |
e6f5b934 | 3094 | params[B43_QOSPARAM_BSLOTS] = bslots; |
0b57664c | 3095 | params[B43_QOSPARAM_REGGAP] = bslots + p->aifs; |
e6f5b934 MB |
3096 | |
3097 | for (i = 0; i < ARRAY_SIZE(params); i++) { | |
3098 | if (i == B43_QOSPARAM_STATUS) { | |
3099 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, | |
3100 | shm_offset + (i * 2)); | |
3101 | /* Mark the parameters as updated. */ | |
3102 | tmp |= 0x100; | |
3103 | b43_shm_write16(dev, B43_SHM_SHARED, | |
3104 | shm_offset + (i * 2), | |
3105 | tmp); | |
3106 | } else { | |
3107 | b43_shm_write16(dev, B43_SHM_SHARED, | |
3108 | shm_offset + (i * 2), | |
3109 | params[i]); | |
3110 | } | |
3111 | } | |
3112 | } | |
3113 | ||
c40c1129 MB |
3114 | /* Mapping of mac80211 queue numbers to b43 QoS SHM offsets. */ |
3115 | static const u16 b43_qos_shm_offsets[] = { | |
3116 | /* [mac80211-queue-nr] = SHM_OFFSET, */ | |
3117 | [0] = B43_QOS_VOICE, | |
3118 | [1] = B43_QOS_VIDEO, | |
3119 | [2] = B43_QOS_BESTEFFORT, | |
3120 | [3] = B43_QOS_BACKGROUND, | |
3121 | }; | |
3122 | ||
5a5f3b40 MB |
3123 | /* Update all QOS parameters in hardware. */ |
3124 | static void b43_qos_upload_all(struct b43_wldev *dev) | |
e6f5b934 MB |
3125 | { |
3126 | struct b43_wl *wl = dev->wl; | |
3127 | struct b43_qos_params *params; | |
e6f5b934 MB |
3128 | unsigned int i; |
3129 | ||
c40c1129 MB |
3130 | BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != |
3131 | ARRAY_SIZE(wl->qos_params)); | |
e6f5b934 MB |
3132 | |
3133 | b43_mac_suspend(dev); | |
e6f5b934 MB |
3134 | for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) { |
3135 | params = &(wl->qos_params[i]); | |
5a5f3b40 MB |
3136 | b43_qos_params_upload(dev, &(params->p), |
3137 | b43_qos_shm_offsets[i]); | |
e6f5b934 | 3138 | } |
e6f5b934 MB |
3139 | b43_mac_enable(dev); |
3140 | } | |
3141 | ||
3142 | static void b43_qos_clear(struct b43_wl *wl) | |
3143 | { | |
3144 | struct b43_qos_params *params; | |
3145 | unsigned int i; | |
3146 | ||
c40c1129 MB |
3147 | /* Initialize QoS parameters to sane defaults. */ |
3148 | ||
3149 | BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != | |
3150 | ARRAY_SIZE(wl->qos_params)); | |
3151 | ||
e6f5b934 MB |
3152 | for (i = 0; i < ARRAY_SIZE(wl->qos_params); i++) { |
3153 | params = &(wl->qos_params[i]); | |
3154 | ||
c40c1129 MB |
3155 | switch (b43_qos_shm_offsets[i]) { |
3156 | case B43_QOS_VOICE: | |
3157 | params->p.txop = 0; | |
3158 | params->p.aifs = 2; | |
3159 | params->p.cw_min = 0x0001; | |
3160 | params->p.cw_max = 0x0001; | |
3161 | break; | |
3162 | case B43_QOS_VIDEO: | |
3163 | params->p.txop = 0; | |
3164 | params->p.aifs = 2; | |
3165 | params->p.cw_min = 0x0001; | |
3166 | params->p.cw_max = 0x0001; | |
3167 | break; | |
3168 | case B43_QOS_BESTEFFORT: | |
3169 | params->p.txop = 0; | |
3170 | params->p.aifs = 3; | |
3171 | params->p.cw_min = 0x0001; | |
3172 | params->p.cw_max = 0x03FF; | |
3173 | break; | |
3174 | case B43_QOS_BACKGROUND: | |
3175 | params->p.txop = 0; | |
3176 | params->p.aifs = 7; | |
3177 | params->p.cw_min = 0x0001; | |
3178 | params->p.cw_max = 0x03FF; | |
3179 | break; | |
3180 | default: | |
3181 | B43_WARN_ON(1); | |
3182 | } | |
e6f5b934 MB |
3183 | } |
3184 | } | |
3185 | ||
3186 | /* Initialize the core's QOS capabilities */ | |
3187 | static void b43_qos_init(struct b43_wldev *dev) | |
3188 | { | |
e6f5b934 | 3189 | /* Upload the current QOS parameters. */ |
5a5f3b40 | 3190 | b43_qos_upload_all(dev); |
e6f5b934 MB |
3191 | |
3192 | /* Enable QOS support. */ | |
3193 | b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF); | |
3194 | b43_write16(dev, B43_MMIO_IFSCTL, | |
3195 | b43_read16(dev, B43_MMIO_IFSCTL) | |
3196 | | B43_MMIO_IFSCTL_USE_EDCF); | |
3197 | } | |
3198 | ||
e100bb64 | 3199 | static int b43_op_conf_tx(struct ieee80211_hw *hw, u16 _queue, |
40faacc4 | 3200 | const struct ieee80211_tx_queue_params *params) |
e4d6b795 | 3201 | { |
e6f5b934 | 3202 | struct b43_wl *wl = hw_to_b43_wl(hw); |
5a5f3b40 | 3203 | struct b43_wldev *dev; |
e6f5b934 | 3204 | unsigned int queue = (unsigned int)_queue; |
5a5f3b40 | 3205 | int err = -ENODEV; |
e6f5b934 MB |
3206 | |
3207 | if (queue >= ARRAY_SIZE(wl->qos_params)) { | |
3208 | /* Queue not available or don't support setting | |
3209 | * params on this queue. Return success to not | |
3210 | * confuse mac80211. */ | |
3211 | return 0; | |
3212 | } | |
5a5f3b40 MB |
3213 | BUILD_BUG_ON(ARRAY_SIZE(b43_qos_shm_offsets) != |
3214 | ARRAY_SIZE(wl->qos_params)); | |
e6f5b934 | 3215 | |
5a5f3b40 MB |
3216 | mutex_lock(&wl->mutex); |
3217 | dev = wl->current_dev; | |
3218 | if (unlikely(!dev || (b43_status(dev) < B43_STAT_INITIALIZED))) | |
3219 | goto out_unlock; | |
e6f5b934 | 3220 | |
5a5f3b40 MB |
3221 | memcpy(&(wl->qos_params[queue].p), params, sizeof(*params)); |
3222 | b43_mac_suspend(dev); | |
3223 | b43_qos_params_upload(dev, &(wl->qos_params[queue].p), | |
3224 | b43_qos_shm_offsets[queue]); | |
3225 | b43_mac_enable(dev); | |
3226 | err = 0; | |
e6f5b934 | 3227 | |
5a5f3b40 MB |
3228 | out_unlock: |
3229 | mutex_unlock(&wl->mutex); | |
3230 | ||
3231 | return err; | |
e4d6b795 MB |
3232 | } |
3233 | ||
40faacc4 MB |
3234 | static int b43_op_get_tx_stats(struct ieee80211_hw *hw, |
3235 | struct ieee80211_tx_queue_stats *stats) | |
e4d6b795 MB |
3236 | { |
3237 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3238 | struct b43_wldev *dev = wl->current_dev; | |
3239 | unsigned long flags; | |
3240 | int err = -ENODEV; | |
3241 | ||
3242 | if (!dev) | |
3243 | goto out; | |
3244 | spin_lock_irqsave(&wl->irq_lock, flags); | |
3245 | if (likely(b43_status(dev) >= B43_STAT_STARTED)) { | |
5100d5ac MB |
3246 | if (b43_using_pio_transfers(dev)) |
3247 | b43_pio_get_tx_stats(dev, stats); | |
3248 | else | |
3249 | b43_dma_get_tx_stats(dev, stats); | |
e4d6b795 MB |
3250 | err = 0; |
3251 | } | |
3252 | spin_unlock_irqrestore(&wl->irq_lock, flags); | |
40faacc4 | 3253 | out: |
e4d6b795 MB |
3254 | return err; |
3255 | } | |
3256 | ||
40faacc4 MB |
3257 | static int b43_op_get_stats(struct ieee80211_hw *hw, |
3258 | struct ieee80211_low_level_stats *stats) | |
e4d6b795 MB |
3259 | { |
3260 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3261 | unsigned long flags; | |
3262 | ||
3263 | spin_lock_irqsave(&wl->irq_lock, flags); | |
3264 | memcpy(stats, &wl->ieee_stats, sizeof(*stats)); | |
3265 | spin_unlock_irqrestore(&wl->irq_lock, flags); | |
3266 | ||
3267 | return 0; | |
3268 | } | |
3269 | ||
08e87a83 AF |
3270 | static u64 b43_op_get_tsf(struct ieee80211_hw *hw) |
3271 | { | |
3272 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3273 | struct b43_wldev *dev; | |
3274 | u64 tsf; | |
3275 | ||
3276 | mutex_lock(&wl->mutex); | |
3277 | spin_lock_irq(&wl->irq_lock); | |
3278 | dev = wl->current_dev; | |
3279 | ||
3280 | if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) | |
3281 | b43_tsf_read(dev, &tsf); | |
3282 | else | |
3283 | tsf = 0; | |
3284 | ||
3285 | spin_unlock_irq(&wl->irq_lock); | |
3286 | mutex_unlock(&wl->mutex); | |
3287 | ||
3288 | return tsf; | |
3289 | } | |
3290 | ||
3291 | static void b43_op_set_tsf(struct ieee80211_hw *hw, u64 tsf) | |
3292 | { | |
3293 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3294 | struct b43_wldev *dev; | |
3295 | ||
3296 | mutex_lock(&wl->mutex); | |
3297 | spin_lock_irq(&wl->irq_lock); | |
3298 | dev = wl->current_dev; | |
3299 | ||
3300 | if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) | |
3301 | b43_tsf_write(dev, tsf); | |
3302 | ||
3303 | spin_unlock_irq(&wl->irq_lock); | |
3304 | mutex_unlock(&wl->mutex); | |
3305 | } | |
3306 | ||
e4d6b795 MB |
3307 | static void b43_put_phy_into_reset(struct b43_wldev *dev) |
3308 | { | |
3309 | struct ssb_device *sdev = dev->dev; | |
3310 | u32 tmslow; | |
3311 | ||
3312 | tmslow = ssb_read32(sdev, SSB_TMSLOW); | |
3313 | tmslow &= ~B43_TMSLOW_GMODE; | |
3314 | tmslow |= B43_TMSLOW_PHYRESET; | |
3315 | tmslow |= SSB_TMSLOW_FGC; | |
3316 | ssb_write32(sdev, SSB_TMSLOW, tmslow); | |
3317 | msleep(1); | |
3318 | ||
3319 | tmslow = ssb_read32(sdev, SSB_TMSLOW); | |
3320 | tmslow &= ~SSB_TMSLOW_FGC; | |
3321 | tmslow |= B43_TMSLOW_PHYRESET; | |
3322 | ssb_write32(sdev, SSB_TMSLOW, tmslow); | |
3323 | msleep(1); | |
3324 | } | |
3325 | ||
99da185a | 3326 | static const char *band_to_string(enum ieee80211_band band) |
bb1eeff1 MB |
3327 | { |
3328 | switch (band) { | |
3329 | case IEEE80211_BAND_5GHZ: | |
3330 | return "5"; | |
3331 | case IEEE80211_BAND_2GHZ: | |
3332 | return "2.4"; | |
3333 | default: | |
3334 | break; | |
3335 | } | |
3336 | B43_WARN_ON(1); | |
3337 | return ""; | |
3338 | } | |
3339 | ||
e4d6b795 | 3340 | /* Expects wl->mutex locked */ |
bb1eeff1 | 3341 | static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan) |
e4d6b795 | 3342 | { |
bb1eeff1 | 3343 | struct b43_wldev *up_dev = NULL; |
e4d6b795 | 3344 | struct b43_wldev *down_dev; |
bb1eeff1 | 3345 | struct b43_wldev *d; |
e4d6b795 | 3346 | int err; |
922d8a0b | 3347 | bool uninitialized_var(gmode); |
e4d6b795 MB |
3348 | int prev_status; |
3349 | ||
bb1eeff1 MB |
3350 | /* Find a device and PHY which supports the band. */ |
3351 | list_for_each_entry(d, &wl->devlist, list) { | |
3352 | switch (chan->band) { | |
3353 | case IEEE80211_BAND_5GHZ: | |
3354 | if (d->phy.supports_5ghz) { | |
3355 | up_dev = d; | |
3356 | gmode = 0; | |
3357 | } | |
3358 | break; | |
3359 | case IEEE80211_BAND_2GHZ: | |
3360 | if (d->phy.supports_2ghz) { | |
3361 | up_dev = d; | |
3362 | gmode = 1; | |
3363 | } | |
3364 | break; | |
3365 | default: | |
3366 | B43_WARN_ON(1); | |
3367 | return -EINVAL; | |
3368 | } | |
3369 | if (up_dev) | |
3370 | break; | |
3371 | } | |
3372 | if (!up_dev) { | |
3373 | b43err(wl, "Could not find a device for %s-GHz band operation\n", | |
3374 | band_to_string(chan->band)); | |
3375 | return -ENODEV; | |
e4d6b795 MB |
3376 | } |
3377 | if ((up_dev == wl->current_dev) && | |
3378 | (!!wl->current_dev->phy.gmode == !!gmode)) { | |
3379 | /* This device is already running. */ | |
3380 | return 0; | |
3381 | } | |
bb1eeff1 MB |
3382 | b43dbg(wl, "Switching to %s-GHz band\n", |
3383 | band_to_string(chan->band)); | |
e4d6b795 MB |
3384 | down_dev = wl->current_dev; |
3385 | ||
3386 | prev_status = b43_status(down_dev); | |
3387 | /* Shutdown the currently running core. */ | |
3388 | if (prev_status >= B43_STAT_STARTED) | |
3389 | b43_wireless_core_stop(down_dev); | |
3390 | if (prev_status >= B43_STAT_INITIALIZED) | |
3391 | b43_wireless_core_exit(down_dev); | |
3392 | ||
3393 | if (down_dev != up_dev) { | |
3394 | /* We switch to a different core, so we put PHY into | |
3395 | * RESET on the old core. */ | |
3396 | b43_put_phy_into_reset(down_dev); | |
3397 | } | |
3398 | ||
3399 | /* Now start the new core. */ | |
3400 | up_dev->phy.gmode = gmode; | |
3401 | if (prev_status >= B43_STAT_INITIALIZED) { | |
3402 | err = b43_wireless_core_init(up_dev); | |
3403 | if (err) { | |
3404 | b43err(wl, "Fatal: Could not initialize device for " | |
bb1eeff1 MB |
3405 | "selected %s-GHz band\n", |
3406 | band_to_string(chan->band)); | |
e4d6b795 MB |
3407 | goto init_failure; |
3408 | } | |
3409 | } | |
3410 | if (prev_status >= B43_STAT_STARTED) { | |
3411 | err = b43_wireless_core_start(up_dev); | |
3412 | if (err) { | |
3413 | b43err(wl, "Fatal: Coult not start device for " | |
bb1eeff1 MB |
3414 | "selected %s-GHz band\n", |
3415 | band_to_string(chan->band)); | |
e4d6b795 MB |
3416 | b43_wireless_core_exit(up_dev); |
3417 | goto init_failure; | |
3418 | } | |
3419 | } | |
3420 | B43_WARN_ON(b43_status(up_dev) != prev_status); | |
3421 | ||
3422 | wl->current_dev = up_dev; | |
3423 | ||
3424 | return 0; | |
bb1eeff1 | 3425 | init_failure: |
e4d6b795 MB |
3426 | /* Whoops, failed to init the new core. No core is operating now. */ |
3427 | wl->current_dev = NULL; | |
3428 | return err; | |
3429 | } | |
3430 | ||
9124b077 JB |
3431 | /* Write the short and long frame retry limit values. */ |
3432 | static void b43_set_retry_limits(struct b43_wldev *dev, | |
3433 | unsigned int short_retry, | |
3434 | unsigned int long_retry) | |
3435 | { | |
3436 | /* The retry limit is a 4-bit counter. Enforce this to avoid overflowing | |
3437 | * the chip-internal counter. */ | |
3438 | short_retry = min(short_retry, (unsigned int)0xF); | |
3439 | long_retry = min(long_retry, (unsigned int)0xF); | |
3440 | ||
3441 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_SRLIMIT, | |
3442 | short_retry); | |
3443 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_LRLIMIT, | |
3444 | long_retry); | |
3445 | } | |
3446 | ||
e8975581 | 3447 | static int b43_op_config(struct ieee80211_hw *hw, u32 changed) |
e4d6b795 MB |
3448 | { |
3449 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3450 | struct b43_wldev *dev; | |
3451 | struct b43_phy *phy; | |
e8975581 | 3452 | struct ieee80211_conf *conf = &hw->conf; |
e4d6b795 | 3453 | unsigned long flags; |
9db1f6d7 | 3454 | int antenna; |
e4d6b795 | 3455 | int err = 0; |
e4d6b795 | 3456 | |
e4d6b795 MB |
3457 | mutex_lock(&wl->mutex); |
3458 | ||
bb1eeff1 MB |
3459 | /* Switch the band (if necessary). This might change the active core. */ |
3460 | err = b43_switch_band(wl, conf->channel); | |
e4d6b795 MB |
3461 | if (err) |
3462 | goto out_unlock_mutex; | |
3463 | dev = wl->current_dev; | |
3464 | phy = &dev->phy; | |
3465 | ||
d10d0e57 MB |
3466 | b43_mac_suspend(dev); |
3467 | ||
9124b077 JB |
3468 | if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) |
3469 | b43_set_retry_limits(dev, conf->short_frame_max_tx_count, | |
3470 | conf->long_frame_max_tx_count); | |
3471 | changed &= ~IEEE80211_CONF_CHANGE_RETRY_LIMITS; | |
3472 | if (!changed) | |
d10d0e57 | 3473 | goto out_mac_enable; |
e4d6b795 MB |
3474 | |
3475 | /* Switch to the requested channel. | |
3476 | * The firmware takes care of races with the TX handler. */ | |
8318d78a | 3477 | if (conf->channel->hw_value != phy->channel) |
ef1a628d | 3478 | b43_switch_channel(dev, conf->channel->hw_value); |
e4d6b795 | 3479 | |
d42ce84a JB |
3480 | dev->wl->radiotap_enabled = !!(conf->flags & IEEE80211_CONF_RADIOTAP); |
3481 | ||
e4d6b795 MB |
3482 | /* Adjust the desired TX power level. */ |
3483 | if (conf->power_level != 0) { | |
18c8adeb MB |
3484 | spin_lock_irqsave(&wl->irq_lock, flags); |
3485 | if (conf->power_level != phy->desired_txpower) { | |
3486 | phy->desired_txpower = conf->power_level; | |
3487 | b43_phy_txpower_check(dev, B43_TXPWR_IGNORE_TIME | | |
3488 | B43_TXPWR_IGNORE_TSSI); | |
e4d6b795 | 3489 | } |
18c8adeb | 3490 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
e4d6b795 MB |
3491 | } |
3492 | ||
3493 | /* Antennas for RX and management frame TX. */ | |
0f4ac38b | 3494 | antenna = B43_ANTENNA_DEFAULT; |
9db1f6d7 | 3495 | b43_mgmtframe_txantenna(dev, antenna); |
0f4ac38b | 3496 | antenna = B43_ANTENNA_DEFAULT; |
ef1a628d MB |
3497 | if (phy->ops->set_rx_antenna) |
3498 | phy->ops->set_rx_antenna(dev, antenna); | |
e4d6b795 | 3499 | |
fda9abcf MB |
3500 | if (!!conf->radio_enabled != phy->radio_on) { |
3501 | if (conf->radio_enabled) { | |
19d337df | 3502 | b43_software_rfkill(dev, false); |
fda9abcf MB |
3503 | b43info(dev->wl, "Radio turned on by software\n"); |
3504 | if (!dev->radio_hw_enable) { | |
3505 | b43info(dev->wl, "The hardware RF-kill button " | |
3506 | "still turns the radio physically off. " | |
3507 | "Press the button to turn it on.\n"); | |
3508 | } | |
3509 | } else { | |
19d337df | 3510 | b43_software_rfkill(dev, true); |
fda9abcf MB |
3511 | b43info(dev->wl, "Radio turned off by software\n"); |
3512 | } | |
3513 | } | |
3514 | ||
d10d0e57 MB |
3515 | out_mac_enable: |
3516 | b43_mac_enable(dev); | |
3517 | out_unlock_mutex: | |
e4d6b795 MB |
3518 | mutex_unlock(&wl->mutex); |
3519 | ||
3520 | return err; | |
3521 | } | |
3522 | ||
881d948c | 3523 | static void b43_update_basic_rates(struct b43_wldev *dev, u32 brates) |
c7ab5ef9 JB |
3524 | { |
3525 | struct ieee80211_supported_band *sband = | |
3526 | dev->wl->hw->wiphy->bands[b43_current_band(dev->wl)]; | |
3527 | struct ieee80211_rate *rate; | |
3528 | int i; | |
3529 | u16 basic, direct, offset, basic_offset, rateptr; | |
3530 | ||
3531 | for (i = 0; i < sband->n_bitrates; i++) { | |
3532 | rate = &sband->bitrates[i]; | |
3533 | ||
3534 | if (b43_is_cck_rate(rate->hw_value)) { | |
3535 | direct = B43_SHM_SH_CCKDIRECT; | |
3536 | basic = B43_SHM_SH_CCKBASIC; | |
3537 | offset = b43_plcp_get_ratecode_cck(rate->hw_value); | |
3538 | offset &= 0xF; | |
3539 | } else { | |
3540 | direct = B43_SHM_SH_OFDMDIRECT; | |
3541 | basic = B43_SHM_SH_OFDMBASIC; | |
3542 | offset = b43_plcp_get_ratecode_ofdm(rate->hw_value); | |
3543 | offset &= 0xF; | |
3544 | } | |
3545 | ||
3546 | rate = ieee80211_get_response_rate(sband, brates, rate->bitrate); | |
3547 | ||
3548 | if (b43_is_cck_rate(rate->hw_value)) { | |
3549 | basic_offset = b43_plcp_get_ratecode_cck(rate->hw_value); | |
3550 | basic_offset &= 0xF; | |
3551 | } else { | |
3552 | basic_offset = b43_plcp_get_ratecode_ofdm(rate->hw_value); | |
3553 | basic_offset &= 0xF; | |
3554 | } | |
3555 | ||
3556 | /* | |
3557 | * Get the pointer that we need to point to | |
3558 | * from the direct map | |
3559 | */ | |
3560 | rateptr = b43_shm_read16(dev, B43_SHM_SHARED, | |
3561 | direct + 2 * basic_offset); | |
3562 | /* and write it to the basic map */ | |
3563 | b43_shm_write16(dev, B43_SHM_SHARED, basic + 2 * offset, | |
3564 | rateptr); | |
3565 | } | |
3566 | } | |
3567 | ||
3568 | static void b43_op_bss_info_changed(struct ieee80211_hw *hw, | |
3569 | struct ieee80211_vif *vif, | |
3570 | struct ieee80211_bss_conf *conf, | |
3571 | u32 changed) | |
3572 | { | |
3573 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3574 | struct b43_wldev *dev; | |
2d0ddec5 | 3575 | unsigned long flags; |
c7ab5ef9 JB |
3576 | |
3577 | mutex_lock(&wl->mutex); | |
3578 | ||
3579 | dev = wl->current_dev; | |
d10d0e57 | 3580 | if (!dev || b43_status(dev) < B43_STAT_STARTED) |
c7ab5ef9 | 3581 | goto out_unlock_mutex; |
2d0ddec5 JB |
3582 | |
3583 | B43_WARN_ON(wl->vif != vif); | |
3584 | ||
3f0d843b | 3585 | spin_lock_irqsave(&wl->irq_lock, flags); |
2d0ddec5 | 3586 | if (changed & BSS_CHANGED_BSSID) { |
2d0ddec5 JB |
3587 | if (conf->bssid) |
3588 | memcpy(wl->bssid, conf->bssid, ETH_ALEN); | |
3589 | else | |
3590 | memset(wl->bssid, 0, ETH_ALEN); | |
3f0d843b | 3591 | } |
2d0ddec5 | 3592 | |
3f0d843b JB |
3593 | if (b43_status(dev) >= B43_STAT_INITIALIZED) { |
3594 | if (changed & BSS_CHANGED_BEACON && | |
3595 | (b43_is_mode(wl, NL80211_IFTYPE_AP) || | |
3596 | b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) || | |
3597 | b43_is_mode(wl, NL80211_IFTYPE_ADHOC))) | |
3598 | b43_update_templates(wl); | |
3599 | ||
3600 | if (changed & BSS_CHANGED_BSSID) | |
2d0ddec5 | 3601 | b43_write_mac_bssid_templates(dev); |
2d0ddec5 | 3602 | } |
3f0d843b | 3603 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
2d0ddec5 | 3604 | |
c7ab5ef9 JB |
3605 | b43_mac_suspend(dev); |
3606 | ||
57c4d7b4 JB |
3607 | /* Update templates for AP/mesh mode. */ |
3608 | if (changed & BSS_CHANGED_BEACON_INT && | |
3609 | (b43_is_mode(wl, NL80211_IFTYPE_AP) || | |
3610 | b43_is_mode(wl, NL80211_IFTYPE_MESH_POINT) || | |
3611 | b43_is_mode(wl, NL80211_IFTYPE_ADHOC))) | |
3612 | b43_set_beacon_int(dev, conf->beacon_int); | |
3613 | ||
c7ab5ef9 JB |
3614 | if (changed & BSS_CHANGED_BASIC_RATES) |
3615 | b43_update_basic_rates(dev, conf->basic_rates); | |
3616 | ||
3617 | if (changed & BSS_CHANGED_ERP_SLOT) { | |
3618 | if (conf->use_short_slot) | |
3619 | b43_short_slot_timing_enable(dev); | |
3620 | else | |
3621 | b43_short_slot_timing_disable(dev); | |
3622 | } | |
3623 | ||
3624 | b43_mac_enable(dev); | |
d10d0e57 | 3625 | out_unlock_mutex: |
c7ab5ef9 | 3626 | mutex_unlock(&wl->mutex); |
c7ab5ef9 JB |
3627 | } |
3628 | ||
40faacc4 | 3629 | static int b43_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
dc822b5d JB |
3630 | struct ieee80211_vif *vif, struct ieee80211_sta *sta, |
3631 | struct ieee80211_key_conf *key) | |
e4d6b795 MB |
3632 | { |
3633 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
c6dfc9a8 | 3634 | struct b43_wldev *dev; |
e4d6b795 MB |
3635 | u8 algorithm; |
3636 | u8 index; | |
c6dfc9a8 | 3637 | int err; |
060210f9 | 3638 | static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
e4d6b795 MB |
3639 | |
3640 | if (modparam_nohwcrypt) | |
3641 | return -ENOSPC; /* User disabled HW-crypto */ | |
3642 | ||
c6dfc9a8 | 3643 | mutex_lock(&wl->mutex); |
e808e586 MB |
3644 | spin_lock_irq(&wl->irq_lock); |
3645 | write_lock(&wl->tx_lock); | |
3646 | /* Why do we need all this locking here? | |
3647 | * mutex -> Every config operation must take it. | |
3648 | * irq_lock -> We modify the dev->key array, which is accessed | |
3649 | * in the IRQ handlers. | |
3650 | * tx_lock -> We modify the dev->key array, which is accessed | |
3651 | * in the TX handler. | |
3652 | */ | |
c6dfc9a8 MB |
3653 | |
3654 | dev = wl->current_dev; | |
3655 | err = -ENODEV; | |
3656 | if (!dev || b43_status(dev) < B43_STAT_INITIALIZED) | |
3657 | goto out_unlock; | |
3658 | ||
403a3a13 | 3659 | if (dev->fw.pcm_request_failed || !dev->hwcrypto_enabled) { |
68217832 MB |
3660 | /* We don't have firmware for the crypto engine. |
3661 | * Must use software-crypto. */ | |
3662 | err = -EOPNOTSUPP; | |
3663 | goto out_unlock; | |
3664 | } | |
3665 | ||
c6dfc9a8 | 3666 | err = -EINVAL; |
e4d6b795 | 3667 | switch (key->alg) { |
e4d6b795 | 3668 | case ALG_WEP: |
e31a16d6 | 3669 | if (key->keylen == WLAN_KEY_LEN_WEP40) |
e4d6b795 MB |
3670 | algorithm = B43_SEC_ALGO_WEP40; |
3671 | else | |
3672 | algorithm = B43_SEC_ALGO_WEP104; | |
3673 | break; | |
3674 | case ALG_TKIP: | |
3675 | algorithm = B43_SEC_ALGO_TKIP; | |
3676 | break; | |
3677 | case ALG_CCMP: | |
3678 | algorithm = B43_SEC_ALGO_AES; | |
3679 | break; | |
3680 | default: | |
3681 | B43_WARN_ON(1); | |
c6dfc9a8 | 3682 | goto out_unlock; |
e4d6b795 | 3683 | } |
e4d6b795 MB |
3684 | index = (u8) (key->keyidx); |
3685 | if (index > 3) | |
e4d6b795 | 3686 | goto out_unlock; |
e4d6b795 MB |
3687 | |
3688 | switch (cmd) { | |
3689 | case SET_KEY: | |
3690 | if (algorithm == B43_SEC_ALGO_TKIP) { | |
3691 | /* FIXME: No TKIP hardware encryption for now. */ | |
3692 | err = -EOPNOTSUPP; | |
3693 | goto out_unlock; | |
3694 | } | |
3695 | ||
e808e586 | 3696 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { |
dc822b5d JB |
3697 | if (WARN_ON(!sta)) { |
3698 | err = -EOPNOTSUPP; | |
3699 | goto out_unlock; | |
3700 | } | |
e808e586 | 3701 | /* Pairwise key with an assigned MAC address. */ |
e4d6b795 | 3702 | err = b43_key_write(dev, -1, algorithm, |
dc822b5d JB |
3703 | key->key, key->keylen, |
3704 | sta->addr, key); | |
e808e586 MB |
3705 | } else { |
3706 | /* Group key */ | |
3707 | err = b43_key_write(dev, index, algorithm, | |
3708 | key->key, key->keylen, NULL, key); | |
e4d6b795 MB |
3709 | } |
3710 | if (err) | |
3711 | goto out_unlock; | |
3712 | ||
3713 | if (algorithm == B43_SEC_ALGO_WEP40 || | |
3714 | algorithm == B43_SEC_ALGO_WEP104) { | |
3715 | b43_hf_write(dev, b43_hf_read(dev) | B43_HF_USEDEFKEYS); | |
3716 | } else { | |
3717 | b43_hf_write(dev, | |
3718 | b43_hf_read(dev) & ~B43_HF_USEDEFKEYS); | |
3719 | } | |
3720 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
3721 | break; | |
3722 | case DISABLE_KEY: { | |
3723 | err = b43_key_clear(dev, key->hw_key_idx); | |
3724 | if (err) | |
3725 | goto out_unlock; | |
3726 | break; | |
3727 | } | |
3728 | default: | |
3729 | B43_WARN_ON(1); | |
3730 | } | |
9cf7f247 | 3731 | |
e4d6b795 | 3732 | out_unlock: |
e4d6b795 MB |
3733 | if (!err) { |
3734 | b43dbg(wl, "%s hardware based encryption for keyidx: %d, " | |
e174961c | 3735 | "mac: %pM\n", |
e4d6b795 | 3736 | cmd == SET_KEY ? "Using" : "Disabling", key->keyidx, |
a1d88210 | 3737 | sta ? sta->addr : bcast_addr); |
9cf7f247 | 3738 | b43_dump_keymemory(dev); |
e4d6b795 | 3739 | } |
e808e586 MB |
3740 | write_unlock(&wl->tx_lock); |
3741 | spin_unlock_irq(&wl->irq_lock); | |
9cf7f247 MB |
3742 | mutex_unlock(&wl->mutex); |
3743 | ||
e4d6b795 MB |
3744 | return err; |
3745 | } | |
3746 | ||
40faacc4 MB |
3747 | static void b43_op_configure_filter(struct ieee80211_hw *hw, |
3748 | unsigned int changed, unsigned int *fflags, | |
3749 | int mc_count, struct dev_addr_list *mc_list) | |
e4d6b795 MB |
3750 | { |
3751 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
3752 | struct b43_wldev *dev = wl->current_dev; | |
3753 | unsigned long flags; | |
3754 | ||
4150c572 JB |
3755 | if (!dev) { |
3756 | *fflags = 0; | |
e4d6b795 | 3757 | return; |
e4d6b795 | 3758 | } |
4150c572 JB |
3759 | |
3760 | spin_lock_irqsave(&wl->irq_lock, flags); | |
3761 | *fflags &= FIF_PROMISC_IN_BSS | | |
3762 | FIF_ALLMULTI | | |
3763 | FIF_FCSFAIL | | |
3764 | FIF_PLCPFAIL | | |
3765 | FIF_CONTROL | | |
3766 | FIF_OTHER_BSS | | |
3767 | FIF_BCN_PRBRESP_PROMISC; | |
3768 | ||
3769 | changed &= FIF_PROMISC_IN_BSS | | |
3770 | FIF_ALLMULTI | | |
3771 | FIF_FCSFAIL | | |
3772 | FIF_PLCPFAIL | | |
3773 | FIF_CONTROL | | |
3774 | FIF_OTHER_BSS | | |
3775 | FIF_BCN_PRBRESP_PROMISC; | |
3776 | ||
3777 | wl->filter_flags = *fflags; | |
3778 | ||
3779 | if (changed && b43_status(dev) >= B43_STAT_INITIALIZED) | |
3780 | b43_adjust_opmode(dev); | |
e4d6b795 MB |
3781 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
3782 | } | |
3783 | ||
e4d6b795 MB |
3784 | /* Locking: wl->mutex */ |
3785 | static void b43_wireless_core_stop(struct b43_wldev *dev) | |
3786 | { | |
3787 | struct b43_wl *wl = dev->wl; | |
3788 | unsigned long flags; | |
3789 | ||
3790 | if (b43_status(dev) < B43_STAT_STARTED) | |
3791 | return; | |
a19d12d7 SB |
3792 | |
3793 | /* Disable and sync interrupts. We must do this before than | |
3794 | * setting the status to INITIALIZED, as the interrupt handler | |
3795 | * won't care about IRQs then. */ | |
3796 | spin_lock_irqsave(&wl->irq_lock, flags); | |
13790728 | 3797 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, 0); |
a19d12d7 SB |
3798 | b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); /* flush */ |
3799 | spin_unlock_irqrestore(&wl->irq_lock, flags); | |
3800 | b43_synchronize_irq(dev); | |
3801 | ||
21a75d77 | 3802 | write_lock_irqsave(&wl->tx_lock, flags); |
e4d6b795 | 3803 | b43_set_status(dev, B43_STAT_INITIALIZED); |
21a75d77 | 3804 | write_unlock_irqrestore(&wl->tx_lock, flags); |
e4d6b795 | 3805 | |
5100d5ac | 3806 | b43_pio_stop(dev); |
e4d6b795 MB |
3807 | mutex_unlock(&wl->mutex); |
3808 | /* Must unlock as it would otherwise deadlock. No races here. | |
3809 | * Cancel the possibly running self-rearming periodic work. */ | |
3810 | cancel_delayed_work_sync(&dev->periodic_work); | |
3811 | mutex_lock(&wl->mutex); | |
3812 | ||
e4d6b795 MB |
3813 | b43_mac_suspend(dev); |
3814 | free_irq(dev->dev->irq, dev); | |
3815 | b43dbg(wl, "Wireless interface stopped\n"); | |
3816 | } | |
3817 | ||
3818 | /* Locking: wl->mutex */ | |
3819 | static int b43_wireless_core_start(struct b43_wldev *dev) | |
3820 | { | |
3821 | int err; | |
3822 | ||
3823 | B43_WARN_ON(b43_status(dev) != B43_STAT_INITIALIZED); | |
3824 | ||
3825 | drain_txstatus_queue(dev); | |
3826 | err = request_irq(dev->dev->irq, b43_interrupt_handler, | |
3827 | IRQF_SHARED, KBUILD_MODNAME, dev); | |
3828 | if (err) { | |
3829 | b43err(dev->wl, "Cannot request IRQ-%d\n", dev->dev->irq); | |
3830 | goto out; | |
3831 | } | |
3832 | ||
3833 | /* We are ready to run. */ | |
3834 | b43_set_status(dev, B43_STAT_STARTED); | |
3835 | ||
3836 | /* Start data flow (TX/RX). */ | |
3837 | b43_mac_enable(dev); | |
13790728 | 3838 | b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, dev->irq_mask); |
e4d6b795 MB |
3839 | |
3840 | /* Start maintainance work */ | |
3841 | b43_periodic_tasks_setup(dev); | |
3842 | ||
3843 | b43dbg(dev->wl, "Wireless interface started\n"); | |
3844 | out: | |
3845 | return err; | |
3846 | } | |
3847 | ||
3848 | /* Get PHY and RADIO versioning numbers */ | |
3849 | static int b43_phy_versioning(struct b43_wldev *dev) | |
3850 | { | |
3851 | struct b43_phy *phy = &dev->phy; | |
3852 | u32 tmp; | |
3853 | u8 analog_type; | |
3854 | u8 phy_type; | |
3855 | u8 phy_rev; | |
3856 | u16 radio_manuf; | |
3857 | u16 radio_ver; | |
3858 | u16 radio_rev; | |
3859 | int unsupported = 0; | |
3860 | ||
3861 | /* Get PHY versioning */ | |
3862 | tmp = b43_read16(dev, B43_MMIO_PHY_VER); | |
3863 | analog_type = (tmp & B43_PHYVER_ANALOG) >> B43_PHYVER_ANALOG_SHIFT; | |
3864 | phy_type = (tmp & B43_PHYVER_TYPE) >> B43_PHYVER_TYPE_SHIFT; | |
3865 | phy_rev = (tmp & B43_PHYVER_VERSION); | |
3866 | switch (phy_type) { | |
3867 | case B43_PHYTYPE_A: | |
3868 | if (phy_rev >= 4) | |
3869 | unsupported = 1; | |
3870 | break; | |
3871 | case B43_PHYTYPE_B: | |
3872 | if (phy_rev != 2 && phy_rev != 4 && phy_rev != 6 | |
3873 | && phy_rev != 7) | |
3874 | unsupported = 1; | |
3875 | break; | |
3876 | case B43_PHYTYPE_G: | |
013978b6 | 3877 | if (phy_rev > 9) |
e4d6b795 MB |
3878 | unsupported = 1; |
3879 | break; | |
d5c71e46 MB |
3880 | #ifdef CONFIG_B43_NPHY |
3881 | case B43_PHYTYPE_N: | |
bb519bee | 3882 | if (phy_rev > 4) |
d5c71e46 MB |
3883 | unsupported = 1; |
3884 | break; | |
6b1c7c67 MB |
3885 | #endif |
3886 | #ifdef CONFIG_B43_PHY_LP | |
3887 | case B43_PHYTYPE_LP: | |
3888 | if (phy_rev > 1) | |
3889 | unsupported = 1; | |
3890 | break; | |
d5c71e46 | 3891 | #endif |
e4d6b795 MB |
3892 | default: |
3893 | unsupported = 1; | |
3894 | }; | |
3895 | if (unsupported) { | |
3896 | b43err(dev->wl, "FOUND UNSUPPORTED PHY " | |
3897 | "(Analog %u, Type %u, Revision %u)\n", | |
3898 | analog_type, phy_type, phy_rev); | |
3899 | return -EOPNOTSUPP; | |
3900 | } | |
3901 | b43dbg(dev->wl, "Found PHY: Analog %u, Type %u, Revision %u\n", | |
3902 | analog_type, phy_type, phy_rev); | |
3903 | ||
3904 | /* Get RADIO versioning */ | |
3905 | if (dev->dev->bus->chip_id == 0x4317) { | |
3906 | if (dev->dev->bus->chip_rev == 0) | |
3907 | tmp = 0x3205017F; | |
3908 | else if (dev->dev->bus->chip_rev == 1) | |
3909 | tmp = 0x4205017F; | |
3910 | else | |
3911 | tmp = 0x5205017F; | |
3912 | } else { | |
3913 | b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID); | |
243dcfcc | 3914 | tmp = b43_read16(dev, B43_MMIO_RADIO_DATA_LOW); |
e4d6b795 | 3915 | b43_write16(dev, B43_MMIO_RADIO_CONTROL, B43_RADIOCTL_ID); |
243dcfcc | 3916 | tmp |= (u32)b43_read16(dev, B43_MMIO_RADIO_DATA_HIGH) << 16; |
e4d6b795 MB |
3917 | } |
3918 | radio_manuf = (tmp & 0x00000FFF); | |
3919 | radio_ver = (tmp & 0x0FFFF000) >> 12; | |
3920 | radio_rev = (tmp & 0xF0000000) >> 28; | |
96c755a3 MB |
3921 | if (radio_manuf != 0x17F /* Broadcom */) |
3922 | unsupported = 1; | |
e4d6b795 MB |
3923 | switch (phy_type) { |
3924 | case B43_PHYTYPE_A: | |
3925 | if (radio_ver != 0x2060) | |
3926 | unsupported = 1; | |
3927 | if (radio_rev != 1) | |
3928 | unsupported = 1; | |
3929 | if (radio_manuf != 0x17F) | |
3930 | unsupported = 1; | |
3931 | break; | |
3932 | case B43_PHYTYPE_B: | |
3933 | if ((radio_ver & 0xFFF0) != 0x2050) | |
3934 | unsupported = 1; | |
3935 | break; | |
3936 | case B43_PHYTYPE_G: | |
3937 | if (radio_ver != 0x2050) | |
3938 | unsupported = 1; | |
3939 | break; | |
96c755a3 | 3940 | case B43_PHYTYPE_N: |
bb519bee | 3941 | if (radio_ver != 0x2055 && radio_ver != 0x2056) |
96c755a3 MB |
3942 | unsupported = 1; |
3943 | break; | |
6b1c7c67 MB |
3944 | case B43_PHYTYPE_LP: |
3945 | if (radio_ver != 0x2062) | |
3946 | unsupported = 1; | |
3947 | break; | |
e4d6b795 MB |
3948 | default: |
3949 | B43_WARN_ON(1); | |
3950 | } | |
3951 | if (unsupported) { | |
3952 | b43err(dev->wl, "FOUND UNSUPPORTED RADIO " | |
3953 | "(Manuf 0x%X, Version 0x%X, Revision %u)\n", | |
3954 | radio_manuf, radio_ver, radio_rev); | |
3955 | return -EOPNOTSUPP; | |
3956 | } | |
3957 | b43dbg(dev->wl, "Found Radio: Manuf 0x%X, Version 0x%X, Revision %u\n", | |
3958 | radio_manuf, radio_ver, radio_rev); | |
3959 | ||
3960 | phy->radio_manuf = radio_manuf; | |
3961 | phy->radio_ver = radio_ver; | |
3962 | phy->radio_rev = radio_rev; | |
3963 | ||
3964 | phy->analog = analog_type; | |
3965 | phy->type = phy_type; | |
3966 | phy->rev = phy_rev; | |
3967 | ||
3968 | return 0; | |
3969 | } | |
3970 | ||
3971 | static void setup_struct_phy_for_init(struct b43_wldev *dev, | |
3972 | struct b43_phy *phy) | |
3973 | { | |
e4d6b795 | 3974 | phy->hardware_power_control = !!modparam_hwpctl; |
18c8adeb | 3975 | phy->next_txpwr_check_time = jiffies; |
8ed7fc48 MB |
3976 | /* PHY TX errors counter. */ |
3977 | atomic_set(&phy->txerr_cnt, B43_PHY_TX_BADNESS_LIMIT); | |
591f3dc2 MB |
3978 | |
3979 | #if B43_DEBUG | |
3980 | phy->phy_locked = 0; | |
3981 | phy->radio_locked = 0; | |
3982 | #endif | |
e4d6b795 MB |
3983 | } |
3984 | ||
3985 | static void setup_struct_wldev_for_init(struct b43_wldev *dev) | |
3986 | { | |
aa6c7ae2 MB |
3987 | dev->dfq_valid = 0; |
3988 | ||
6a724d68 MB |
3989 | /* Assume the radio is enabled. If it's not enabled, the state will |
3990 | * immediately get fixed on the first periodic work run. */ | |
3991 | dev->radio_hw_enable = 1; | |
e4d6b795 MB |
3992 | |
3993 | /* Stats */ | |
3994 | memset(&dev->stats, 0, sizeof(dev->stats)); | |
3995 | ||
3996 | setup_struct_phy_for_init(dev, &dev->phy); | |
3997 | ||
3998 | /* IRQ related flags */ | |
3999 | dev->irq_reason = 0; | |
4000 | memset(dev->dma_reason, 0, sizeof(dev->dma_reason)); | |
13790728 | 4001 | dev->irq_mask = B43_IRQ_MASKTEMPLATE; |
3e3ccb3d | 4002 | if (b43_modparam_verbose < B43_VERBOSITY_DEBUG) |
13790728 | 4003 | dev->irq_mask &= ~B43_IRQ_PHY_TXERR; |
e4d6b795 MB |
4004 | |
4005 | dev->mac_suspended = 1; | |
4006 | ||
4007 | /* Noise calculation context */ | |
4008 | memset(&dev->noisecalc, 0, sizeof(dev->noisecalc)); | |
4009 | } | |
4010 | ||
4011 | static void b43_bluetooth_coext_enable(struct b43_wldev *dev) | |
4012 | { | |
4013 | struct ssb_sprom *sprom = &dev->dev->bus->sprom; | |
a259d6a4 | 4014 | u64 hf; |
e4d6b795 | 4015 | |
1855ba78 MB |
4016 | if (!modparam_btcoex) |
4017 | return; | |
95de2841 | 4018 | if (!(sprom->boardflags_lo & B43_BFL_BTCOEXIST)) |
e4d6b795 MB |
4019 | return; |
4020 | if (dev->phy.type != B43_PHYTYPE_B && !dev->phy.gmode) | |
4021 | return; | |
4022 | ||
4023 | hf = b43_hf_read(dev); | |
95de2841 | 4024 | if (sprom->boardflags_lo & B43_BFL_BTCMOD) |
e4d6b795 MB |
4025 | hf |= B43_HF_BTCOEXALT; |
4026 | else | |
4027 | hf |= B43_HF_BTCOEX; | |
4028 | b43_hf_write(dev, hf); | |
e4d6b795 MB |
4029 | } |
4030 | ||
4031 | static void b43_bluetooth_coext_disable(struct b43_wldev *dev) | |
1855ba78 MB |
4032 | { |
4033 | if (!modparam_btcoex) | |
4034 | return; | |
4035 | //TODO | |
e4d6b795 MB |
4036 | } |
4037 | ||
4038 | static void b43_imcfglo_timeouts_workaround(struct b43_wldev *dev) | |
4039 | { | |
4040 | #ifdef CONFIG_SSB_DRIVER_PCICORE | |
4041 | struct ssb_bus *bus = dev->dev->bus; | |
4042 | u32 tmp; | |
4043 | ||
4044 | if (bus->pcicore.dev && | |
4045 | bus->pcicore.dev->id.coreid == SSB_DEV_PCI && | |
4046 | bus->pcicore.dev->id.revision <= 5) { | |
4047 | /* IMCFGLO timeouts workaround. */ | |
4048 | tmp = ssb_read32(dev->dev, SSB_IMCFGLO); | |
4049 | tmp &= ~SSB_IMCFGLO_REQTO; | |
4050 | tmp &= ~SSB_IMCFGLO_SERTO; | |
4051 | switch (bus->bustype) { | |
4052 | case SSB_BUSTYPE_PCI: | |
4053 | case SSB_BUSTYPE_PCMCIA: | |
4054 | tmp |= 0x32; | |
4055 | break; | |
4056 | case SSB_BUSTYPE_SSB: | |
4057 | tmp |= 0x53; | |
4058 | break; | |
4059 | } | |
4060 | ssb_write32(dev->dev, SSB_IMCFGLO, tmp); | |
4061 | } | |
4062 | #endif /* CONFIG_SSB_DRIVER_PCICORE */ | |
4063 | } | |
4064 | ||
d59f720d MB |
4065 | static void b43_set_synth_pu_delay(struct b43_wldev *dev, bool idle) |
4066 | { | |
4067 | u16 pu_delay; | |
4068 | ||
4069 | /* The time value is in microseconds. */ | |
4070 | if (dev->phy.type == B43_PHYTYPE_A) | |
4071 | pu_delay = 3700; | |
4072 | else | |
4073 | pu_delay = 1050; | |
05c914fe | 4074 | if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC) || idle) |
d59f720d MB |
4075 | pu_delay = 500; |
4076 | if ((dev->phy.radio_ver == 0x2050) && (dev->phy.radio_rev == 8)) | |
4077 | pu_delay = max(pu_delay, (u16)2400); | |
4078 | ||
4079 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SPUWKUP, pu_delay); | |
4080 | } | |
4081 | ||
4082 | /* Set the TSF CFP pre-TargetBeaconTransmissionTime. */ | |
4083 | static void b43_set_pretbtt(struct b43_wldev *dev) | |
4084 | { | |
4085 | u16 pretbtt; | |
4086 | ||
4087 | /* The time value is in microseconds. */ | |
05c914fe | 4088 | if (b43_is_mode(dev->wl, NL80211_IFTYPE_ADHOC)) { |
d59f720d MB |
4089 | pretbtt = 2; |
4090 | } else { | |
4091 | if (dev->phy.type == B43_PHYTYPE_A) | |
4092 | pretbtt = 120; | |
4093 | else | |
4094 | pretbtt = 250; | |
4095 | } | |
4096 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRETBTT, pretbtt); | |
4097 | b43_write16(dev, B43_MMIO_TSF_CFP_PRETBTT, pretbtt); | |
4098 | } | |
4099 | ||
e4d6b795 MB |
4100 | /* Shutdown a wireless core */ |
4101 | /* Locking: wl->mutex */ | |
4102 | static void b43_wireless_core_exit(struct b43_wldev *dev) | |
4103 | { | |
1f7d87b0 | 4104 | u32 macctl; |
e4d6b795 MB |
4105 | |
4106 | B43_WARN_ON(b43_status(dev) > B43_STAT_INITIALIZED); | |
4107 | if (b43_status(dev) != B43_STAT_INITIALIZED) | |
4108 | return; | |
4109 | b43_set_status(dev, B43_STAT_UNINIT); | |
4110 | ||
1f7d87b0 MB |
4111 | /* Stop the microcode PSM. */ |
4112 | macctl = b43_read32(dev, B43_MMIO_MACCTL); | |
4113 | macctl &= ~B43_MACCTL_PSM_RUN; | |
4114 | macctl |= B43_MACCTL_PSM_JMP0; | |
4115 | b43_write32(dev, B43_MMIO_MACCTL, macctl); | |
4116 | ||
3506e0c4 RW |
4117 | if (!dev->suspend_in_progress) { |
4118 | b43_leds_exit(dev); | |
b844eba2 | 4119 | b43_rng_exit(dev->wl); |
3506e0c4 | 4120 | } |
e4d6b795 | 4121 | b43_dma_free(dev); |
5100d5ac | 4122 | b43_pio_free(dev); |
e4d6b795 | 4123 | b43_chip_exit(dev); |
cb24f57f | 4124 | dev->phy.ops->switch_analog(dev, 0); |
e66fee6a MB |
4125 | if (dev->wl->current_beacon) { |
4126 | dev_kfree_skb_any(dev->wl->current_beacon); | |
4127 | dev->wl->current_beacon = NULL; | |
4128 | } | |
4129 | ||
e4d6b795 MB |
4130 | ssb_device_disable(dev->dev, 0); |
4131 | ssb_bus_may_powerdown(dev->dev->bus); | |
4132 | } | |
4133 | ||
4134 | /* Initialize a wireless core */ | |
4135 | static int b43_wireless_core_init(struct b43_wldev *dev) | |
4136 | { | |
4137 | struct b43_wl *wl = dev->wl; | |
4138 | struct ssb_bus *bus = dev->dev->bus; | |
4139 | struct ssb_sprom *sprom = &bus->sprom; | |
4140 | struct b43_phy *phy = &dev->phy; | |
4141 | int err; | |
a259d6a4 MB |
4142 | u64 hf; |
4143 | u32 tmp; | |
e4d6b795 MB |
4144 | |
4145 | B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT); | |
4146 | ||
4147 | err = ssb_bus_powerup(bus, 0); | |
4148 | if (err) | |
4149 | goto out; | |
4150 | if (!ssb_device_is_enabled(dev->dev)) { | |
4151 | tmp = phy->gmode ? B43_TMSLOW_GMODE : 0; | |
4152 | b43_wireless_core_reset(dev, tmp); | |
4153 | } | |
4154 | ||
fb11137a | 4155 | /* Reset all data structures. */ |
e4d6b795 | 4156 | setup_struct_wldev_for_init(dev); |
fb11137a | 4157 | phy->ops->prepare_structs(dev); |
e4d6b795 MB |
4158 | |
4159 | /* Enable IRQ routing to this device. */ | |
4160 | ssb_pcicore_dev_irqvecs_enable(&bus->pcicore, dev->dev); | |
4161 | ||
4162 | b43_imcfglo_timeouts_workaround(dev); | |
4163 | b43_bluetooth_coext_disable(dev); | |
fb11137a MB |
4164 | if (phy->ops->prepare_hardware) { |
4165 | err = phy->ops->prepare_hardware(dev); | |
ef1a628d | 4166 | if (err) |
fb11137a | 4167 | goto err_busdown; |
ef1a628d | 4168 | } |
e4d6b795 MB |
4169 | err = b43_chip_init(dev); |
4170 | if (err) | |
fb11137a | 4171 | goto err_busdown; |
e4d6b795 MB |
4172 | b43_shm_write16(dev, B43_SHM_SHARED, |
4173 | B43_SHM_SH_WLCOREREV, dev->dev->id.revision); | |
4174 | hf = b43_hf_read(dev); | |
4175 | if (phy->type == B43_PHYTYPE_G) { | |
4176 | hf |= B43_HF_SYMW; | |
4177 | if (phy->rev == 1) | |
4178 | hf |= B43_HF_GDCW; | |
95de2841 | 4179 | if (sprom->boardflags_lo & B43_BFL_PACTRL) |
e4d6b795 | 4180 | hf |= B43_HF_OFDMPABOOST; |
969d15cf MB |
4181 | } |
4182 | if (phy->radio_ver == 0x2050) { | |
4183 | if (phy->radio_rev == 6) | |
4184 | hf |= B43_HF_4318TSSI; | |
4185 | if (phy->radio_rev < 6) | |
4186 | hf |= B43_HF_VCORECALC; | |
e4d6b795 | 4187 | } |
1cc8f476 MB |
4188 | if (sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW) |
4189 | hf |= B43_HF_DSCRQ; /* Disable slowclock requests from ucode. */ | |
1a77733c | 4190 | #ifdef CONFIG_SSB_DRIVER_PCICORE |
8821905c MB |
4191 | if ((bus->bustype == SSB_BUSTYPE_PCI) && |
4192 | (bus->pcicore.dev->id.revision <= 10)) | |
4193 | hf |= B43_HF_PCISCW; /* PCI slow clock workaround. */ | |
1a77733c | 4194 | #endif |
25d3ef59 | 4195 | hf &= ~B43_HF_SKCFPUP; |
e4d6b795 MB |
4196 | b43_hf_write(dev, hf); |
4197 | ||
74cfdba7 MB |
4198 | b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT, |
4199 | B43_DEFAULT_LONG_RETRY_LIMIT); | |
e4d6b795 MB |
4200 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_SFFBLIM, 3); |
4201 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_LFFBLIM, 2); | |
4202 | ||
4203 | /* Disable sending probe responses from firmware. | |
4204 | * Setting the MaxTime to one usec will always trigger | |
4205 | * a timeout, so we never send any probe resp. | |
4206 | * A timeout of zero is infinite. */ | |
4207 | b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_PRMAXTIME, 1); | |
4208 | ||
4209 | b43_rate_memory_init(dev); | |
5042c507 | 4210 | b43_set_phytxctl_defaults(dev); |
e4d6b795 MB |
4211 | |
4212 | /* Minimum Contention Window */ | |
4213 | if (phy->type == B43_PHYTYPE_B) { | |
4214 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0x1F); | |
4215 | } else { | |
4216 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MINCONT, 0xF); | |
4217 | } | |
4218 | /* Maximum Contention Window */ | |
4219 | b43_shm_write16(dev, B43_SHM_SCRATCH, B43_SHM_SC_MAXCONT, 0x3FF); | |
4220 | ||
5100d5ac MB |
4221 | if ((dev->dev->bus->bustype == SSB_BUSTYPE_PCMCIA) || B43_FORCE_PIO) { |
4222 | dev->__using_pio_transfers = 1; | |
4223 | err = b43_pio_init(dev); | |
4224 | } else { | |
4225 | dev->__using_pio_transfers = 0; | |
4226 | err = b43_dma_init(dev); | |
4227 | } | |
e4d6b795 MB |
4228 | if (err) |
4229 | goto err_chip_exit; | |
03b29773 | 4230 | b43_qos_init(dev); |
d59f720d | 4231 | b43_set_synth_pu_delay(dev, 1); |
e4d6b795 MB |
4232 | b43_bluetooth_coext_enable(dev); |
4233 | ||
1cc8f476 | 4234 | ssb_bus_powerup(bus, !(sprom->boardflags_lo & B43_BFL_XTAL_NOSLOW)); |
4150c572 | 4235 | b43_upload_card_macaddress(dev); |
e4d6b795 | 4236 | b43_security_init(dev); |
3506e0c4 RW |
4237 | if (!dev->suspend_in_progress) |
4238 | b43_rng_init(wl); | |
e4d6b795 MB |
4239 | |
4240 | b43_set_status(dev, B43_STAT_INITIALIZED); | |
4241 | ||
3506e0c4 RW |
4242 | if (!dev->suspend_in_progress) |
4243 | b43_leds_init(dev); | |
1a8d1227 | 4244 | out: |
e4d6b795 MB |
4245 | return err; |
4246 | ||
ef1a628d | 4247 | err_chip_exit: |
e4d6b795 | 4248 | b43_chip_exit(dev); |
ef1a628d | 4249 | err_busdown: |
e4d6b795 MB |
4250 | ssb_bus_may_powerdown(bus); |
4251 | B43_WARN_ON(b43_status(dev) != B43_STAT_UNINIT); | |
4252 | return err; | |
4253 | } | |
4254 | ||
40faacc4 MB |
4255 | static int b43_op_add_interface(struct ieee80211_hw *hw, |
4256 | struct ieee80211_if_init_conf *conf) | |
e4d6b795 MB |
4257 | { |
4258 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4259 | struct b43_wldev *dev; | |
4260 | unsigned long flags; | |
4261 | int err = -EOPNOTSUPP; | |
4150c572 JB |
4262 | |
4263 | /* TODO: allow WDS/AP devices to coexist */ | |
4264 | ||
05c914fe JB |
4265 | if (conf->type != NL80211_IFTYPE_AP && |
4266 | conf->type != NL80211_IFTYPE_MESH_POINT && | |
4267 | conf->type != NL80211_IFTYPE_STATION && | |
4268 | conf->type != NL80211_IFTYPE_WDS && | |
4269 | conf->type != NL80211_IFTYPE_ADHOC) | |
4150c572 | 4270 | return -EOPNOTSUPP; |
e4d6b795 MB |
4271 | |
4272 | mutex_lock(&wl->mutex); | |
4150c572 | 4273 | if (wl->operating) |
e4d6b795 MB |
4274 | goto out_mutex_unlock; |
4275 | ||
4276 | b43dbg(wl, "Adding Interface type %d\n", conf->type); | |
4277 | ||
4278 | dev = wl->current_dev; | |
4150c572 | 4279 | wl->operating = 1; |
32bfd35d | 4280 | wl->vif = conf->vif; |
4150c572 JB |
4281 | wl->if_type = conf->type; |
4282 | memcpy(wl->mac_addr, conf->mac_addr, ETH_ALEN); | |
4283 | ||
4284 | spin_lock_irqsave(&wl->irq_lock, flags); | |
4285 | b43_adjust_opmode(dev); | |
d59f720d MB |
4286 | b43_set_pretbtt(dev); |
4287 | b43_set_synth_pu_delay(dev, 0); | |
4150c572 JB |
4288 | b43_upload_card_macaddress(dev); |
4289 | spin_unlock_irqrestore(&wl->irq_lock, flags); | |
4290 | ||
4291 | err = 0; | |
4292 | out_mutex_unlock: | |
4293 | mutex_unlock(&wl->mutex); | |
4294 | ||
4295 | return err; | |
4296 | } | |
4297 | ||
40faacc4 MB |
4298 | static void b43_op_remove_interface(struct ieee80211_hw *hw, |
4299 | struct ieee80211_if_init_conf *conf) | |
4150c572 JB |
4300 | { |
4301 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4302 | struct b43_wldev *dev = wl->current_dev; | |
4303 | unsigned long flags; | |
4304 | ||
4305 | b43dbg(wl, "Removing Interface type %d\n", conf->type); | |
4306 | ||
4307 | mutex_lock(&wl->mutex); | |
4308 | ||
4309 | B43_WARN_ON(!wl->operating); | |
32bfd35d JB |
4310 | B43_WARN_ON(wl->vif != conf->vif); |
4311 | wl->vif = NULL; | |
4150c572 JB |
4312 | |
4313 | wl->operating = 0; | |
4314 | ||
4315 | spin_lock_irqsave(&wl->irq_lock, flags); | |
4316 | b43_adjust_opmode(dev); | |
4317 | memset(wl->mac_addr, 0, ETH_ALEN); | |
4318 | b43_upload_card_macaddress(dev); | |
4319 | spin_unlock_irqrestore(&wl->irq_lock, flags); | |
4320 | ||
4321 | mutex_unlock(&wl->mutex); | |
4322 | } | |
4323 | ||
40faacc4 | 4324 | static int b43_op_start(struct ieee80211_hw *hw) |
4150c572 JB |
4325 | { |
4326 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4327 | struct b43_wldev *dev = wl->current_dev; | |
4328 | int did_init = 0; | |
923403b8 | 4329 | int err = 0; |
4150c572 | 4330 | |
7be1bb6b MB |
4331 | /* Kill all old instance specific information to make sure |
4332 | * the card won't use it in the short timeframe between start | |
4333 | * and mac80211 reconfiguring it. */ | |
4334 | memset(wl->bssid, 0, ETH_ALEN); | |
4335 | memset(wl->mac_addr, 0, ETH_ALEN); | |
4336 | wl->filter_flags = 0; | |
4337 | wl->radiotap_enabled = 0; | |
e6f5b934 | 4338 | b43_qos_clear(wl); |
6b4bec01 MB |
4339 | wl->beacon0_uploaded = 0; |
4340 | wl->beacon1_uploaded = 0; | |
4341 | wl->beacon_templates_virgin = 1; | |
7be1bb6b | 4342 | |
4150c572 JB |
4343 | mutex_lock(&wl->mutex); |
4344 | ||
e4d6b795 MB |
4345 | if (b43_status(dev) < B43_STAT_INITIALIZED) { |
4346 | err = b43_wireless_core_init(dev); | |
f41f3f37 | 4347 | if (err) |
e4d6b795 MB |
4348 | goto out_mutex_unlock; |
4349 | did_init = 1; | |
4350 | } | |
4150c572 | 4351 | |
e4d6b795 MB |
4352 | if (b43_status(dev) < B43_STAT_STARTED) { |
4353 | err = b43_wireless_core_start(dev); | |
4354 | if (err) { | |
4355 | if (did_init) | |
4356 | b43_wireless_core_exit(dev); | |
4357 | goto out_mutex_unlock; | |
4358 | } | |
4359 | } | |
4360 | ||
f41f3f37 JB |
4361 | /* XXX: only do if device doesn't support rfkill irq */ |
4362 | wiphy_rfkill_start_polling(hw->wiphy); | |
4363 | ||
4150c572 | 4364 | out_mutex_unlock: |
e4d6b795 MB |
4365 | mutex_unlock(&wl->mutex); |
4366 | ||
4367 | return err; | |
4368 | } | |
4369 | ||
40faacc4 | 4370 | static void b43_op_stop(struct ieee80211_hw *hw) |
e4d6b795 MB |
4371 | { |
4372 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4150c572 | 4373 | struct b43_wldev *dev = wl->current_dev; |
e4d6b795 | 4374 | |
a82d9922 | 4375 | cancel_work_sync(&(wl->beacon_update_trigger)); |
1a8d1227 | 4376 | |
e4d6b795 | 4377 | mutex_lock(&wl->mutex); |
4150c572 JB |
4378 | if (b43_status(dev) >= B43_STAT_STARTED) |
4379 | b43_wireless_core_stop(dev); | |
4380 | b43_wireless_core_exit(dev); | |
e4d6b795 | 4381 | mutex_unlock(&wl->mutex); |
18c8adeb MB |
4382 | |
4383 | cancel_work_sync(&(wl->txpower_adjust_work)); | |
e4d6b795 MB |
4384 | } |
4385 | ||
17741cdc JB |
4386 | static int b43_op_beacon_set_tim(struct ieee80211_hw *hw, |
4387 | struct ieee80211_sta *sta, bool set) | |
e66fee6a MB |
4388 | { |
4389 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
d4df6f1a | 4390 | unsigned long flags; |
e66fee6a | 4391 | |
d4df6f1a | 4392 | spin_lock_irqsave(&wl->irq_lock, flags); |
9d139c81 | 4393 | b43_update_templates(wl); |
d4df6f1a | 4394 | spin_unlock_irqrestore(&wl->irq_lock, flags); |
e66fee6a MB |
4395 | |
4396 | return 0; | |
4397 | } | |
4398 | ||
38968d09 JB |
4399 | static void b43_op_sta_notify(struct ieee80211_hw *hw, |
4400 | struct ieee80211_vif *vif, | |
4401 | enum sta_notify_cmd notify_cmd, | |
17741cdc | 4402 | struct ieee80211_sta *sta) |
38968d09 JB |
4403 | { |
4404 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4405 | ||
4406 | B43_WARN_ON(!vif || wl->vif != vif); | |
4407 | } | |
4408 | ||
25d3ef59 MB |
4409 | static void b43_op_sw_scan_start_notifier(struct ieee80211_hw *hw) |
4410 | { | |
4411 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4412 | struct b43_wldev *dev; | |
4413 | ||
4414 | mutex_lock(&wl->mutex); | |
4415 | dev = wl->current_dev; | |
4416 | if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) { | |
4417 | /* Disable CFP update during scan on other channels. */ | |
4418 | b43_hf_write(dev, b43_hf_read(dev) | B43_HF_SKCFPUP); | |
4419 | } | |
4420 | mutex_unlock(&wl->mutex); | |
4421 | } | |
4422 | ||
4423 | static void b43_op_sw_scan_complete_notifier(struct ieee80211_hw *hw) | |
4424 | { | |
4425 | struct b43_wl *wl = hw_to_b43_wl(hw); | |
4426 | struct b43_wldev *dev; | |
4427 | ||
4428 | mutex_lock(&wl->mutex); | |
4429 | dev = wl->current_dev; | |
4430 | if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) { | |
4431 | /* Re-enable CFP update. */ | |
4432 | b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_SKCFPUP); | |
4433 | } | |
4434 | mutex_unlock(&wl->mutex); | |
4435 | } | |
4436 | ||
e4d6b795 | 4437 | static const struct ieee80211_ops b43_hw_ops = { |
40faacc4 MB |
4438 | .tx = b43_op_tx, |
4439 | .conf_tx = b43_op_conf_tx, | |
4440 | .add_interface = b43_op_add_interface, | |
4441 | .remove_interface = b43_op_remove_interface, | |
4442 | .config = b43_op_config, | |
c7ab5ef9 | 4443 | .bss_info_changed = b43_op_bss_info_changed, |
40faacc4 MB |
4444 | .configure_filter = b43_op_configure_filter, |
4445 | .set_key = b43_op_set_key, | |
4446 | .get_stats = b43_op_get_stats, | |
4447 | .get_tx_stats = b43_op_get_tx_stats, | |
08e87a83 AF |
4448 | .get_tsf = b43_op_get_tsf, |
4449 | .set_tsf = b43_op_set_tsf, | |
40faacc4 MB |
4450 | .start = b43_op_start, |
4451 | .stop = b43_op_stop, | |
e66fee6a | 4452 | .set_tim = b43_op_beacon_set_tim, |
38968d09 | 4453 | .sta_notify = b43_op_sta_notify, |
25d3ef59 MB |
4454 | .sw_scan_start = b43_op_sw_scan_start_notifier, |
4455 | .sw_scan_complete = b43_op_sw_scan_complete_notifier, | |
f41f3f37 | 4456 | .rfkill_poll = b43_rfkill_poll, |
e4d6b795 MB |
4457 | }; |
4458 | ||
4459 | /* Hard-reset the chip. Do not call this directly. | |
4460 | * Use b43_controller_restart() | |
4461 | */ | |
4462 | static void b43_chip_reset(struct work_struct *work) | |
4463 | { | |
4464 | struct b43_wldev *dev = | |
4465 | container_of(work, struct b43_wldev, restart_work); | |
4466 | struct b43_wl *wl = dev->wl; | |
4467 | int err = 0; | |
4468 | int prev_status; | |
4469 | ||
4470 | mutex_lock(&wl->mutex); | |
4471 | ||
4472 | prev_status = b43_status(dev); | |
4473 | /* Bring the device down... */ | |
4474 | if (prev_status >= B43_STAT_STARTED) | |
4475 | b43_wireless_core_stop(dev); | |
4476 | if (prev_status >= B43_STAT_INITIALIZED) | |
4477 | b43_wireless_core_exit(dev); | |
4478 | ||
4479 | /* ...and up again. */ | |
4480 | if (prev_status >= B43_STAT_INITIALIZED) { | |
4481 | err = b43_wireless_core_init(dev); | |
4482 | if (err) | |
4483 | goto out; | |
4484 | } | |
4485 | if (prev_status >= B43_STAT_STARTED) { | |
4486 | err = b43_wireless_core_start(dev); | |
4487 | if (err) { | |
4488 | b43_wireless_core_exit(dev); | |
4489 | goto out; | |
4490 | } | |
4491 | } | |
3bf0a32e MB |
4492 | out: |
4493 | if (err) | |
4494 | wl->current_dev = NULL; /* Failed to init the dev. */ | |
e4d6b795 MB |
4495 | mutex_unlock(&wl->mutex); |
4496 | if (err) | |
4497 | b43err(wl, "Controller restart FAILED\n"); | |
4498 | else | |
4499 | b43info(wl, "Controller restarted\n"); | |
4500 | } | |
4501 | ||
bb1eeff1 | 4502 | static int b43_setup_bands(struct b43_wldev *dev, |
96c755a3 | 4503 | bool have_2ghz_phy, bool have_5ghz_phy) |
e4d6b795 MB |
4504 | { |
4505 | struct ieee80211_hw *hw = dev->wl->hw; | |
e4d6b795 | 4506 | |
bb1eeff1 MB |
4507 | if (have_2ghz_phy) |
4508 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &b43_band_2GHz; | |
4509 | if (dev->phy.type == B43_PHYTYPE_N) { | |
4510 | if (have_5ghz_phy) | |
4511 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_nphy; | |
4512 | } else { | |
4513 | if (have_5ghz_phy) | |
4514 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &b43_band_5GHz_aphy; | |
4515 | } | |
96c755a3 | 4516 | |
bb1eeff1 MB |
4517 | dev->phy.supports_2ghz = have_2ghz_phy; |
4518 | dev->phy.supports_5ghz = have_5ghz_phy; | |
e4d6b795 MB |
4519 | |
4520 | return 0; | |
4521 | } | |
4522 | ||
4523 | static void b43_wireless_core_detach(struct b43_wldev *dev) | |
4524 | { | |
4525 | /* We release firmware that late to not be required to re-request | |
4526 | * is all the time when we reinit the core. */ | |
4527 | b43_release_firmware(dev); | |
fb11137a | 4528 | b43_phy_free(dev); |
e4d6b795 MB |
4529 | } |
4530 | ||
4531 | static int b43_wireless_core_attach(struct b43_wldev *dev) | |
4532 | { | |
4533 | struct b43_wl *wl = dev->wl; | |
4534 | struct ssb_bus *bus = dev->dev->bus; | |
4535 | struct pci_dev *pdev = bus->host_pci; | |
4536 | int err; | |
96c755a3 | 4537 | bool have_2ghz_phy = 0, have_5ghz_phy = 0; |
e4d6b795 MB |
4538 | u32 tmp; |
4539 | ||
4540 | /* Do NOT do any device initialization here. | |
4541 | * Do it in wireless_core_init() instead. | |
4542 | * This function is for gathering basic information about the HW, only. | |
4543 | * Also some structs may be set up here. But most likely you want to have | |
4544 | * that in core_init(), too. | |
4545 | */ | |
4546 | ||
4547 | err = ssb_bus_powerup(bus, 0); | |
4548 | if (err) { | |
4549 | b43err(wl, "Bus powerup failed\n"); | |
4550 | goto out; | |
4551 | } | |
4552 | /* Get the PHY type. */ | |
4553 | if (dev->dev->id.revision >= 5) { | |
4554 | u32 tmshigh; | |
4555 | ||
4556 | tmshigh = ssb_read32(dev->dev, SSB_TMSHIGH); | |
96c755a3 MB |
4557 | have_2ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_2GHZ_PHY); |
4558 | have_5ghz_phy = !!(tmshigh & B43_TMSHIGH_HAVE_5GHZ_PHY); | |
e4d6b795 | 4559 | } else |
96c755a3 | 4560 | B43_WARN_ON(1); |
e4d6b795 | 4561 | |
96c755a3 | 4562 | dev->phy.gmode = have_2ghz_phy; |
e4d6b795 MB |
4563 | tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0; |
4564 | b43_wireless_core_reset(dev, tmp); | |
4565 | ||
4566 | err = b43_phy_versioning(dev); | |
4567 | if (err) | |
21954c36 | 4568 | goto err_powerdown; |
e4d6b795 MB |
4569 | /* Check if this device supports multiband. */ |
4570 | if (!pdev || | |
4571 | (pdev->device != 0x4312 && | |
4572 | pdev->device != 0x4319 && pdev->device != 0x4324)) { | |
4573 | /* No multiband support. */ | |
96c755a3 MB |
4574 | have_2ghz_phy = 0; |
4575 | have_5ghz_phy = 0; | |
e4d6b795 MB |
4576 | switch (dev->phy.type) { |
4577 | case B43_PHYTYPE_A: | |
96c755a3 | 4578 | have_5ghz_phy = 1; |
e4d6b795 MB |
4579 | break; |
4580 | case B43_PHYTYPE_G: | |
96c755a3 | 4581 | case B43_PHYTYPE_N: |
6b1c7c67 | 4582 | case B43_PHYTYPE_LP: |
96c755a3 | 4583 | have_2ghz_phy = 1; |
e4d6b795 MB |
4584 | break; |
4585 | default: | |
4586 | B43_WARN_ON(1); | |
4587 | } | |
4588 | } | |
96c755a3 MB |
4589 | if (dev->phy.type == B43_PHYTYPE_A) { |
4590 | /* FIXME */ | |
4591 | b43err(wl, "IEEE 802.11a devices are unsupported\n"); | |
4592 | err = -EOPNOTSUPP; | |
4593 | goto err_powerdown; | |
4594 | } | |
2e35af14 MB |
4595 | if (1 /* disable A-PHY */) { |
4596 | /* FIXME: For now we disable the A-PHY on multi-PHY devices. */ | |
4597 | if (dev->phy.type != B43_PHYTYPE_N) { | |
4598 | have_2ghz_phy = 1; | |
4599 | have_5ghz_phy = 0; | |
4600 | } | |
4601 | } | |
4602 | ||
fb11137a MB |
4603 | err = b43_phy_allocate(dev); |
4604 | if (err) | |
4605 | goto err_powerdown; | |
4606 | ||
96c755a3 | 4607 | dev->phy.gmode = have_2ghz_phy; |
e4d6b795 MB |
4608 | tmp = dev->phy.gmode ? B43_TMSLOW_GMODE : 0; |
4609 | b43_wireless_core_reset(dev, tmp); | |
4610 | ||
4611 | err = b43_validate_chipaccess(dev); | |
4612 | if (err) | |
fb11137a | 4613 | goto err_phy_free; |
bb1eeff1 | 4614 | err = b43_setup_bands(dev, have_2ghz_phy, have_5ghz_phy); |
e4d6b795 | 4615 | if (err) |
fb11137a | 4616 | goto err_phy_free; |
e4d6b795 MB |
4617 | |
4618 | /* Now set some default "current_dev" */ | |
4619 | if (!wl->current_dev) | |
4620 | wl->current_dev = dev; | |
4621 | INIT_WORK(&dev->restart_work, b43_chip_reset); | |
4622 | ||
cb24f57f | 4623 | dev->phy.ops->switch_analog(dev, 0); |
e4d6b795 MB |
4624 | ssb_device_disable(dev->dev, 0); |
4625 | ssb_bus_may_powerdown(bus); | |
4626 | ||
4627 | out: | |
4628 | return err; | |
4629 | ||
fb11137a MB |
4630 | err_phy_free: |
4631 | b43_phy_free(dev); | |
e4d6b795 MB |
4632 | err_powerdown: |
4633 | ssb_bus_may_powerdown(bus); | |
4634 | return err; | |
4635 | } | |
4636 | ||
4637 | static void b43_one_core_detach(struct ssb_device *dev) | |
4638 | { | |
4639 | struct b43_wldev *wldev; | |
4640 | struct b43_wl *wl; | |
4641 | ||
3bf0a32e MB |
4642 | /* Do not cancel ieee80211-workqueue based work here. |
4643 | * See comment in b43_remove(). */ | |
4644 | ||
e4d6b795 MB |
4645 | wldev = ssb_get_drvdata(dev); |
4646 | wl = wldev->wl; | |
e4d6b795 MB |
4647 | b43_debugfs_remove_device(wldev); |
4648 | b43_wireless_core_detach(wldev); | |
4649 | list_del(&wldev->list); | |
4650 | wl->nr_devs--; | |
4651 | ssb_set_drvdata(dev, NULL); | |
4652 | kfree(wldev); | |
4653 | } | |
4654 | ||
4655 | static int b43_one_core_attach(struct ssb_device *dev, struct b43_wl *wl) | |
4656 | { | |
4657 | struct b43_wldev *wldev; | |
4658 | struct pci_dev *pdev; | |
4659 | int err = -ENOMEM; | |
4660 | ||
4661 | if (!list_empty(&wl->devlist)) { | |
4662 | /* We are not the first core on this chip. */ | |
4663 | pdev = dev->bus->host_pci; | |
4664 | /* Only special chips support more than one wireless | |
4665 | * core, although some of the other chips have more than | |
4666 | * one wireless core as well. Check for this and | |
4667 | * bail out early. | |
4668 | */ | |
4669 | if (!pdev || | |
4670 | ((pdev->device != 0x4321) && | |
4671 | (pdev->device != 0x4313) && (pdev->device != 0x431A))) { | |
4672 | b43dbg(wl, "Ignoring unconnected 802.11 core\n"); | |
4673 | return -ENODEV; | |
4674 | } | |
4675 | } | |
4676 | ||
4677 | wldev = kzalloc(sizeof(*wldev), GFP_KERNEL); | |
4678 | if (!wldev) | |
4679 | goto out; | |
4680 | ||
4681 | wldev->dev = dev; | |
4682 | wldev->wl = wl; | |
4683 | b43_set_status(wldev, B43_STAT_UNINIT); | |
4684 | wldev->bad_frames_preempt = modparam_bad_frames_preempt; | |
4685 | tasklet_init(&wldev->isr_tasklet, | |
4686 | (void (*)(unsigned long))b43_interrupt_tasklet, | |
4687 | (unsigned long)wldev); | |
e4d6b795 MB |
4688 | INIT_LIST_HEAD(&wldev->list); |
4689 | ||
4690 | err = b43_wireless_core_attach(wldev); | |
4691 | if (err) | |
4692 | goto err_kfree_wldev; | |
4693 | ||
4694 | list_add(&wldev->list, &wl->devlist); | |
4695 | wl->nr_devs++; | |
4696 | ssb_set_drvdata(dev, wldev); | |
4697 | b43_debugfs_add_device(wldev); | |
4698 | ||
4699 | out: | |
4700 | return err; | |
4701 | ||
4702 | err_kfree_wldev: | |
4703 | kfree(wldev); | |
4704 | return err; | |
4705 | } | |
4706 | ||
9fc38458 MB |
4707 | #define IS_PDEV(pdev, _vendor, _device, _subvendor, _subdevice) ( \ |
4708 | (pdev->vendor == PCI_VENDOR_ID_##_vendor) && \ | |
4709 | (pdev->device == _device) && \ | |
4710 | (pdev->subsystem_vendor == PCI_VENDOR_ID_##_subvendor) && \ | |
4711 | (pdev->subsystem_device == _subdevice) ) | |
4712 | ||
e4d6b795 MB |
4713 | static void b43_sprom_fixup(struct ssb_bus *bus) |
4714 | { | |
1855ba78 MB |
4715 | struct pci_dev *pdev; |
4716 | ||
e4d6b795 MB |
4717 | /* boardflags workarounds */ |
4718 | if (bus->boardinfo.vendor == SSB_BOARDVENDOR_DELL && | |
4719 | bus->chip_id == 0x4301 && bus->boardinfo.rev == 0x74) | |
95de2841 | 4720 | bus->sprom.boardflags_lo |= B43_BFL_BTCOEXIST; |
e4d6b795 MB |
4721 | if (bus->boardinfo.vendor == PCI_VENDOR_ID_APPLE && |
4722 | bus->boardinfo.type == 0x4E && bus->boardinfo.rev > 0x40) | |
95de2841 | 4723 | bus->sprom.boardflags_lo |= B43_BFL_PACTRL; |
1855ba78 MB |
4724 | if (bus->bustype == SSB_BUSTYPE_PCI) { |
4725 | pdev = bus->host_pci; | |
9fc38458 | 4726 | if (IS_PDEV(pdev, BROADCOM, 0x4318, ASUSTEK, 0x100F) || |
430cd47f | 4727 | IS_PDEV(pdev, BROADCOM, 0x4320, DELL, 0x0003) || |
570bdfb1 | 4728 | IS_PDEV(pdev, BROADCOM, 0x4320, HP, 0x12f8) || |
9fc38458 | 4729 | IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0015) || |
a58d4522 | 4730 | IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0014) || |
3bb91bff LF |
4731 | IS_PDEV(pdev, BROADCOM, 0x4320, LINKSYS, 0x0013) || |
4732 | IS_PDEV(pdev, BROADCOM, 0x4320, MOTOROLA, 0x7010)) | |
1855ba78 MB |
4733 | bus->sprom.boardflags_lo &= ~B43_BFL_BTCOEXIST; |
4734 | } | |
e4d6b795 MB |
4735 | } |
4736 | ||
4737 | static void b43_wireless_exit(struct ssb_device *dev, struct b43_wl *wl) | |
4738 | { | |
4739 | struct ieee80211_hw *hw = wl->hw; | |
4740 | ||
4741 | ssb_set_devtypedata(dev, NULL); | |
4742 | ieee80211_free_hw(hw); | |
4743 | } | |
4744 | ||
4745 | static int b43_wireless_init(struct ssb_device *dev) | |
4746 | { | |
4747 | struct ssb_sprom *sprom = &dev->bus->sprom; | |
4748 | struct ieee80211_hw *hw; | |
4749 | struct b43_wl *wl; | |
4750 | int err = -ENOMEM; | |
4751 | ||
4752 | b43_sprom_fixup(dev->bus); | |
4753 | ||
4754 | hw = ieee80211_alloc_hw(sizeof(*wl), &b43_hw_ops); | |
4755 | if (!hw) { | |
4756 | b43err(NULL, "Could not allocate ieee80211 device\n"); | |
4757 | goto out; | |
4758 | } | |
403a3a13 | 4759 | wl = hw_to_b43_wl(hw); |
e4d6b795 MB |
4760 | |
4761 | /* fill hw info */ | |
605a0bd6 | 4762 | hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
566bfe5a BR |
4763 | IEEE80211_HW_SIGNAL_DBM | |
4764 | IEEE80211_HW_NOISE_DBM; | |
4765 | ||
f59ac048 LR |
4766 | hw->wiphy->interface_modes = |
4767 | BIT(NL80211_IFTYPE_AP) | | |
4768 | BIT(NL80211_IFTYPE_MESH_POINT) | | |
4769 | BIT(NL80211_IFTYPE_STATION) | | |
4770 | BIT(NL80211_IFTYPE_WDS) | | |
4771 | BIT(NL80211_IFTYPE_ADHOC); | |
4772 | ||
403a3a13 MB |
4773 | hw->queues = modparam_qos ? 4 : 1; |
4774 | wl->mac80211_initially_registered_queues = hw->queues; | |
e6a9854b | 4775 | hw->max_rates = 2; |
e4d6b795 | 4776 | SET_IEEE80211_DEV(hw, dev->dev); |
95de2841 LF |
4777 | if (is_valid_ether_addr(sprom->et1mac)) |
4778 | SET_IEEE80211_PERM_ADDR(hw, sprom->et1mac); | |
e4d6b795 | 4779 | else |
95de2841 | 4780 | SET_IEEE80211_PERM_ADDR(hw, sprom->il0mac); |
e4d6b795 | 4781 | |
403a3a13 | 4782 | /* Initialize struct b43_wl */ |
e4d6b795 MB |
4783 | wl->hw = hw; |
4784 | spin_lock_init(&wl->irq_lock); | |
21a75d77 | 4785 | rwlock_init(&wl->tx_lock); |
e4d6b795 | 4786 | spin_lock_init(&wl->leds_lock); |
280d0e16 | 4787 | spin_lock_init(&wl->shm_lock); |
e4d6b795 MB |
4788 | mutex_init(&wl->mutex); |
4789 | INIT_LIST_HEAD(&wl->devlist); | |
a82d9922 | 4790 | INIT_WORK(&wl->beacon_update_trigger, b43_beacon_update_trigger_work); |
18c8adeb | 4791 | INIT_WORK(&wl->txpower_adjust_work, b43_phy_txpower_adjust_work); |
e4d6b795 MB |
4792 | |
4793 | ssb_set_devtypedata(dev, wl); | |
060210f9 MB |
4794 | b43info(wl, "Broadcom %04X WLAN found (core revision %u)\n", |
4795 | dev->bus->chip_id, dev->id.revision); | |
e4d6b795 | 4796 | err = 0; |
060210f9 | 4797 | out: |
e4d6b795 MB |
4798 | return err; |
4799 | } | |
4800 | ||
4801 | static int b43_probe(struct ssb_device *dev, const struct ssb_device_id *id) | |
4802 | { | |
4803 | struct b43_wl *wl; | |
4804 | int err; | |
4805 | int first = 0; | |
4806 | ||
4807 | wl = ssb_get_devtypedata(dev); | |
4808 | if (!wl) { | |
4809 | /* Probing the first core. Must setup common struct b43_wl */ | |
4810 | first = 1; | |
4811 | err = b43_wireless_init(dev); | |
4812 | if (err) | |
4813 | goto out; | |
4814 | wl = ssb_get_devtypedata(dev); | |
4815 | B43_WARN_ON(!wl); | |
4816 | } | |
4817 | err = b43_one_core_attach(dev, wl); | |
4818 | if (err) | |
4819 | goto err_wireless_exit; | |
4820 | ||
4821 | if (first) { | |
4822 | err = ieee80211_register_hw(wl->hw); | |
4823 | if (err) | |
4824 | goto err_one_core_detach; | |
4825 | } | |
4826 | ||
4827 | out: | |
4828 | return err; | |
4829 | ||
4830 | err_one_core_detach: | |
4831 | b43_one_core_detach(dev); | |
4832 | err_wireless_exit: | |
4833 | if (first) | |
4834 | b43_wireless_exit(dev, wl); | |
4835 | return err; | |
4836 | } | |
4837 | ||
4838 | static void b43_remove(struct ssb_device *dev) | |
4839 | { | |
4840 | struct b43_wl *wl = ssb_get_devtypedata(dev); | |
4841 | struct b43_wldev *wldev = ssb_get_drvdata(dev); | |
4842 | ||
3bf0a32e MB |
4843 | /* We must cancel any work here before unregistering from ieee80211, |
4844 | * as the ieee80211 unreg will destroy the workqueue. */ | |
4845 | cancel_work_sync(&wldev->restart_work); | |
4846 | ||
e4d6b795 | 4847 | B43_WARN_ON(!wl); |
403a3a13 MB |
4848 | if (wl->current_dev == wldev) { |
4849 | /* Restore the queues count before unregistering, because firmware detect | |
4850 | * might have modified it. Restoring is important, so the networking | |
4851 | * stack can properly free resources. */ | |
4852 | wl->hw->queues = wl->mac80211_initially_registered_queues; | |
e4d6b795 | 4853 | ieee80211_unregister_hw(wl->hw); |
403a3a13 | 4854 | } |
e4d6b795 MB |
4855 | |
4856 | b43_one_core_detach(dev); | |
4857 | ||
4858 | if (list_empty(&wl->devlist)) { | |
4859 | /* Last core on the chip unregistered. | |
4860 | * We can destroy common struct b43_wl. | |
4861 | */ | |
4862 | b43_wireless_exit(dev, wl); | |
4863 | } | |
4864 | } | |
4865 | ||
4866 | /* Perform a hardware reset. This can be called from any context. */ | |
4867 | void b43_controller_restart(struct b43_wldev *dev, const char *reason) | |
4868 | { | |
4869 | /* Must avoid requeueing, if we are in shutdown. */ | |
4870 | if (b43_status(dev) < B43_STAT_INITIALIZED) | |
4871 | return; | |
4872 | b43info(dev->wl, "Controller RESET (%s) ...\n", reason); | |
4873 | queue_work(dev->wl->hw->workqueue, &dev->restart_work); | |
4874 | } | |
4875 | ||
4876 | #ifdef CONFIG_PM | |
4877 | ||
4878 | static int b43_suspend(struct ssb_device *dev, pm_message_t state) | |
4879 | { | |
4880 | struct b43_wldev *wldev = ssb_get_drvdata(dev); | |
4881 | struct b43_wl *wl = wldev->wl; | |
4882 | ||
4883 | b43dbg(wl, "Suspending...\n"); | |
4884 | ||
4885 | mutex_lock(&wl->mutex); | |
3506e0c4 | 4886 | wldev->suspend_in_progress = true; |
e4d6b795 MB |
4887 | wldev->suspend_init_status = b43_status(wldev); |
4888 | if (wldev->suspend_init_status >= B43_STAT_STARTED) | |
4889 | b43_wireless_core_stop(wldev); | |
4890 | if (wldev->suspend_init_status >= B43_STAT_INITIALIZED) | |
4891 | b43_wireless_core_exit(wldev); | |
4892 | mutex_unlock(&wl->mutex); | |
4893 | ||
4894 | b43dbg(wl, "Device suspended.\n"); | |
4895 | ||
4896 | return 0; | |
4897 | } | |
4898 | ||
4899 | static int b43_resume(struct ssb_device *dev) | |
4900 | { | |
4901 | struct b43_wldev *wldev = ssb_get_drvdata(dev); | |
4902 | struct b43_wl *wl = wldev->wl; | |
4903 | int err = 0; | |
4904 | ||
4905 | b43dbg(wl, "Resuming...\n"); | |
4906 | ||
4907 | mutex_lock(&wl->mutex); | |
4908 | if (wldev->suspend_init_status >= B43_STAT_INITIALIZED) { | |
4909 | err = b43_wireless_core_init(wldev); | |
4910 | if (err) { | |
4911 | b43err(wl, "Resume failed at core init\n"); | |
4912 | goto out; | |
4913 | } | |
4914 | } | |
4915 | if (wldev->suspend_init_status >= B43_STAT_STARTED) { | |
4916 | err = b43_wireless_core_start(wldev); | |
4917 | if (err) { | |
3506e0c4 | 4918 | b43_leds_exit(wldev); |
b844eba2 | 4919 | b43_rng_exit(wldev->wl); |
e4d6b795 MB |
4920 | b43_wireless_core_exit(wldev); |
4921 | b43err(wl, "Resume failed at core start\n"); | |
4922 | goto out; | |
4923 | } | |
4924 | } | |
e4d6b795 | 4925 | b43dbg(wl, "Device resumed.\n"); |
3506e0c4 RW |
4926 | out: |
4927 | wldev->suspend_in_progress = false; | |
4928 | mutex_unlock(&wl->mutex); | |
e4d6b795 MB |
4929 | return err; |
4930 | } | |
4931 | ||
4932 | #else /* CONFIG_PM */ | |
4933 | # define b43_suspend NULL | |
4934 | # define b43_resume NULL | |
4935 | #endif /* CONFIG_PM */ | |
4936 | ||
4937 | static struct ssb_driver b43_ssb_driver = { | |
4938 | .name = KBUILD_MODNAME, | |
4939 | .id_table = b43_ssb_tbl, | |
4940 | .probe = b43_probe, | |
4941 | .remove = b43_remove, | |
4942 | .suspend = b43_suspend, | |
4943 | .resume = b43_resume, | |
4944 | }; | |
4945 | ||
26bc783f MB |
4946 | static void b43_print_driverinfo(void) |
4947 | { | |
4948 | const char *feat_pci = "", *feat_pcmcia = "", *feat_nphy = "", | |
f41f3f37 | 4949 | *feat_leds = ""; |
26bc783f MB |
4950 | |
4951 | #ifdef CONFIG_B43_PCI_AUTOSELECT | |
4952 | feat_pci = "P"; | |
4953 | #endif | |
4954 | #ifdef CONFIG_B43_PCMCIA | |
4955 | feat_pcmcia = "M"; | |
4956 | #endif | |
4957 | #ifdef CONFIG_B43_NPHY | |
4958 | feat_nphy = "N"; | |
4959 | #endif | |
4960 | #ifdef CONFIG_B43_LEDS | |
4961 | feat_leds = "L"; | |
26bc783f MB |
4962 | #endif |
4963 | printk(KERN_INFO "Broadcom 43xx driver loaded " | |
f41f3f37 | 4964 | "[ Features: %s%s%s%s, Firmware-ID: " |
26bc783f MB |
4965 | B43_SUPPORTED_FIRMWARE_ID " ]\n", |
4966 | feat_pci, feat_pcmcia, feat_nphy, | |
f41f3f37 | 4967 | feat_leds); |
26bc783f MB |
4968 | } |
4969 | ||
e4d6b795 MB |
4970 | static int __init b43_init(void) |
4971 | { | |
4972 | int err; | |
4973 | ||
4974 | b43_debugfs_init(); | |
4975 | err = b43_pcmcia_init(); | |
4976 | if (err) | |
4977 | goto err_dfs_exit; | |
4978 | err = ssb_driver_register(&b43_ssb_driver); | |
4979 | if (err) | |
4980 | goto err_pcmcia_exit; | |
26bc783f | 4981 | b43_print_driverinfo(); |
e4d6b795 MB |
4982 | |
4983 | return err; | |
4984 | ||
4985 | err_pcmcia_exit: | |
4986 | b43_pcmcia_exit(); | |
4987 | err_dfs_exit: | |
4988 | b43_debugfs_exit(); | |
4989 | return err; | |
4990 | } | |
4991 | ||
4992 | static void __exit b43_exit(void) | |
4993 | { | |
4994 | ssb_driver_unregister(&b43_ssb_driver); | |
4995 | b43_pcmcia_exit(); | |
4996 | b43_debugfs_exit(); | |
4997 | } | |
4998 | ||
4999 | module_init(b43_init) | |
5000 | module_exit(b43_exit) |