Commit | Line | Data |
---|---|---|
f078f209 | 1 | /* |
cee075a2 | 2 | * Copyright (c) 2008-2009 Atheros Communications Inc. |
f078f209 LR |
3 | * |
4 | * Permission to use, copy, modify, and/or distribute this software for any | |
5 | * purpose with or without fee is hereby granted, provided that the above | |
6 | * copyright notice and this permission notice appear in all copies. | |
7 | * | |
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
15 | */ | |
16 | ||
17 | #include <linux/kernel.h> | |
18 | #include <linux/slab.h> | |
3a702e49 BC |
19 | #include <net/cfg80211.h> |
20 | #include <net/mac80211.h> | |
3a702e49 | 21 | #include "regd.h" |
f078f209 LR |
22 | #include "regd_common.h" |
23 | ||
5f8e077c LR |
24 | /* |
25 | * This is a set of common rules used by our world regulatory domains. | |
26 | * We have 12 world regulatory domains. To save space we consolidate | |
27 | * the regulatory domains in 5 structures by frequency and change | |
28 | * the flags on our reg_notifier() on a case by case basis. | |
29 | */ | |
f078f209 | 30 | |
5f8e077c LR |
31 | /* Only these channels all allow active scan on all world regulatory domains */ |
32 | #define ATH9K_2GHZ_CH01_11 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0) | |
33 | ||
34 | /* We enable active scan on these a case by case basis by regulatory domain */ | |
35 | #define ATH9K_2GHZ_CH12_13 REG_RULE(2467-10, 2472+10, 40, 0, 20,\ | |
36 | NL80211_RRF_PASSIVE_SCAN) | |
37 | #define ATH9K_2GHZ_CH14 REG_RULE(2484-10, 2484+10, 40, 0, 20,\ | |
38 | NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_OFDM) | |
39 | ||
40 | /* We allow IBSS on these on a case by case basis by regulatory domain */ | |
41 | #define ATH9K_5GHZ_5150_5350 REG_RULE(5150-10, 5350+10, 40, 0, 30,\ | |
42 | NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS) | |
43 | #define ATH9K_5GHZ_5470_5850 REG_RULE(5470-10, 5850+10, 40, 0, 30,\ | |
44 | NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS) | |
45 | #define ATH9K_5GHZ_5725_5850 REG_RULE(5725-10, 5850+10, 40, 0, 30,\ | |
46 | NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS) | |
47 | ||
48 | #define ATH9K_2GHZ_ALL ATH9K_2GHZ_CH01_11, \ | |
49 | ATH9K_2GHZ_CH12_13, \ | |
50 | ATH9K_2GHZ_CH14 | |
51 | ||
52 | #define ATH9K_5GHZ_ALL ATH9K_5GHZ_5150_5350, \ | |
53 | ATH9K_5GHZ_5470_5850 | |
54 | /* This one skips what we call "mid band" */ | |
55 | #define ATH9K_5GHZ_NO_MIDBAND ATH9K_5GHZ_5150_5350, \ | |
56 | ATH9K_5GHZ_5725_5850 | |
57 | ||
58 | /* Can be used for: | |
59 | * 0x60, 0x61, 0x62 */ | |
3a702e49 | 60 | static const struct ieee80211_regdomain ath_world_regdom_60_61_62 = { |
5f8e077c LR |
61 | .n_reg_rules = 5, |
62 | .alpha2 = "99", | |
63 | .reg_rules = { | |
64 | ATH9K_2GHZ_ALL, | |
65 | ATH9K_5GHZ_ALL, | |
66 | } | |
67 | }; | |
68 | ||
69 | /* Can be used by 0x63 and 0x65 */ | |
3a702e49 | 70 | static const struct ieee80211_regdomain ath_world_regdom_63_65 = { |
5f8e077c LR |
71 | .n_reg_rules = 4, |
72 | .alpha2 = "99", | |
73 | .reg_rules = { | |
74 | ATH9K_2GHZ_CH01_11, | |
75 | ATH9K_2GHZ_CH12_13, | |
76 | ATH9K_5GHZ_NO_MIDBAND, | |
77 | } | |
78 | }; | |
79 | ||
80 | /* Can be used by 0x64 only */ | |
3a702e49 | 81 | static const struct ieee80211_regdomain ath_world_regdom_64 = { |
5f8e077c LR |
82 | .n_reg_rules = 3, |
83 | .alpha2 = "99", | |
84 | .reg_rules = { | |
85 | ATH9K_2GHZ_CH01_11, | |
86 | ATH9K_5GHZ_NO_MIDBAND, | |
87 | } | |
88 | }; | |
89 | ||
90 | /* Can be used by 0x66 and 0x69 */ | |
3a702e49 | 91 | static const struct ieee80211_regdomain ath_world_regdom_66_69 = { |
5f8e077c LR |
92 | .n_reg_rules = 3, |
93 | .alpha2 = "99", | |
94 | .reg_rules = { | |
95 | ATH9K_2GHZ_CH01_11, | |
96 | ATH9K_5GHZ_ALL, | |
97 | } | |
98 | }; | |
99 | ||
100 | /* Can be used by 0x67, 0x6A and 0x68 */ | |
3a702e49 | 101 | static const struct ieee80211_regdomain ath_world_regdom_67_68_6A = { |
5f8e077c LR |
102 | .n_reg_rules = 4, |
103 | .alpha2 = "99", | |
104 | .reg_rules = { | |
105 | ATH9K_2GHZ_CH01_11, | |
106 | ATH9K_2GHZ_CH12_13, | |
107 | ATH9K_5GHZ_ALL, | |
108 | } | |
109 | }; | |
f078f209 | 110 | |
d0f48f9d BC |
111 | static inline bool is_wwr_sku(u16 regd) |
112 | { | |
641eabb0 CL |
113 | return ((regd & COUNTRY_ERD_FLAG) != COUNTRY_ERD_FLAG) && |
114 | (((regd & WORLD_SKU_MASK) == WORLD_SKU_PREFIX) || | |
115 | (regd == WORLD)); | |
d0f48f9d BC |
116 | } |
117 | ||
3a702e49 | 118 | static u16 ath_regd_get_eepromRD(struct ath_regulatory *reg) |
f078f209 | 119 | { |
c02cf373 | 120 | return reg->current_rd & ~WORLDWIDE_ROAMING_FLAG; |
f078f209 LR |
121 | } |
122 | ||
3a702e49 | 123 | bool ath_is_world_regd(struct ath_regulatory *reg) |
5f8e077c | 124 | { |
3a702e49 | 125 | return is_wwr_sku(ath_regd_get_eepromRD(reg)); |
f078f209 | 126 | } |
3a702e49 | 127 | EXPORT_SYMBOL(ath_is_world_regd); |
f078f209 | 128 | |
e3bb249b | 129 | static const struct ieee80211_regdomain *ath_default_world_regdomain(void) |
f078f209 | 130 | { |
5f8e077c | 131 | /* this is the most restrictive */ |
3a702e49 | 132 | return &ath_world_regdom_64; |
5f8e077c | 133 | } |
f078f209 | 134 | |
e3bb249b | 135 | static const struct |
3a702e49 | 136 | ieee80211_regdomain *ath_world_regdomain(struct ath_regulatory *reg) |
5f8e077c | 137 | { |
c02cf373 | 138 | switch (reg->regpair->regDmnEnum) { |
5f8e077c LR |
139 | case 0x60: |
140 | case 0x61: | |
141 | case 0x62: | |
3a702e49 | 142 | return &ath_world_regdom_60_61_62; |
5f8e077c LR |
143 | case 0x63: |
144 | case 0x65: | |
3a702e49 | 145 | return &ath_world_regdom_63_65; |
5f8e077c | 146 | case 0x64: |
3a702e49 | 147 | return &ath_world_regdom_64; |
5f8e077c LR |
148 | case 0x66: |
149 | case 0x69: | |
3a702e49 | 150 | return &ath_world_regdom_66_69; |
5f8e077c LR |
151 | case 0x67: |
152 | case 0x68: | |
153 | case 0x6A: | |
3a702e49 | 154 | return &ath_world_regdom_67_68_6A; |
5f8e077c LR |
155 | default: |
156 | WARN_ON(1); | |
3a702e49 | 157 | return ath_default_world_regdomain(); |
f078f209 | 158 | } |
f078f209 LR |
159 | } |
160 | ||
547e4c2e | 161 | /* Frequency is one where radar detection is required */ |
3a702e49 | 162 | static bool ath_is_radar_freq(u16 center_freq) |
547e4c2e LR |
163 | { |
164 | return (center_freq >= 5260 && center_freq <= 5700); | |
165 | } | |
166 | ||
7519a8f0 | 167 | /* |
84540869 LR |
168 | * N.B: These exception rules do not apply radar freqs. |
169 | * | |
170 | * - We enable adhoc (or beaconing) if allowed by 11d | |
171 | * - We enable active scan if the channel is allowed by 11d | |
172 | * - If no country IE has been processed and a we determine we have | |
173 | * received a beacon on a channel we can enable active scan and | |
174 | * adhoc (or beaconing). | |
7519a8f0 | 175 | */ |
6b2b2ffb LR |
176 | static void |
177 | ath_reg_apply_beaconing_flags(struct wiphy *wiphy, | |
178 | enum nl80211_reg_initiator initiator) | |
f078f209 | 179 | { |
84540869 | 180 | enum ieee80211_band band; |
5f8e077c LR |
181 | struct ieee80211_supported_band *sband; |
182 | const struct ieee80211_reg_rule *reg_rule; | |
183 | struct ieee80211_channel *ch; | |
184 | unsigned int i; | |
185 | u32 bandwidth = 0; | |
186 | int r; | |
187 | ||
84540869 | 188 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
f078f209 | 189 | |
84540869 | 190 | if (!wiphy->bands[band]) |
5f8e077c | 191 | continue; |
84540869 LR |
192 | |
193 | sband = wiphy->bands[band]; | |
194 | ||
195 | for (i = 0; i < sband->n_channels; i++) { | |
196 | ||
197 | ch = &sband->channels[i]; | |
198 | ||
3a702e49 | 199 | if (ath_is_radar_freq(ch->center_freq) || |
84540869 LR |
200 | (ch->flags & IEEE80211_CHAN_RADAR)) |
201 | continue; | |
202 | ||
7db90f4a | 203 | if (initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE) { |
038659e7 LR |
204 | r = freq_reg_info(wiphy, |
205 | ch->center_freq, | |
206 | bandwidth, | |
207 | ®_rule); | |
84540869 LR |
208 | if (r) |
209 | continue; | |
210 | /* | |
211 | * If 11d had a rule for this channel ensure | |
212 | * we enable adhoc/beaconing if it allows us to | |
213 | * use it. Note that we would have disabled it | |
214 | * by applying our static world regdomain by | |
215 | * default during init, prior to calling our | |
216 | * regulatory_hint(). | |
217 | */ | |
218 | if (!(reg_rule->flags & | |
219 | NL80211_RRF_NO_IBSS)) | |
220 | ch->flags &= | |
221 | ~IEEE80211_CHAN_NO_IBSS; | |
222 | if (!(reg_rule->flags & | |
223 | NL80211_RRF_PASSIVE_SCAN)) | |
224 | ch->flags &= | |
225 | ~IEEE80211_CHAN_PASSIVE_SCAN; | |
226 | } else { | |
227 | if (ch->beacon_found) | |
228 | ch->flags &= ~(IEEE80211_CHAN_NO_IBSS | | |
229 | IEEE80211_CHAN_PASSIVE_SCAN); | |
230 | } | |
231 | } | |
5f8e077c | 232 | } |
84540869 | 233 | |
f078f209 LR |
234 | } |
235 | ||
5f8e077c | 236 | /* Allows active scan scan on Ch 12 and 13 */ |
6b2b2ffb LR |
237 | static void |
238 | ath_reg_apply_active_scan_flags(struct wiphy *wiphy, | |
239 | enum nl80211_reg_initiator initiator) | |
f078f209 | 240 | { |
5f8e077c LR |
241 | struct ieee80211_supported_band *sband; |
242 | struct ieee80211_channel *ch; | |
243 | const struct ieee80211_reg_rule *reg_rule; | |
244 | u32 bandwidth = 0; | |
245 | int r; | |
246 | ||
5f8e077c LR |
247 | sband = wiphy->bands[IEEE80211_BAND_2GHZ]; |
248 | ||
84540869 LR |
249 | /* |
250 | * If no country IE has been received always enable active scan | |
251 | * on these channels. This is only done for specific regulatory SKUs | |
252 | */ | |
7db90f4a | 253 | if (initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE) { |
5f8e077c LR |
254 | ch = &sband->channels[11]; /* CH 12 */ |
255 | if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
256 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; | |
257 | ch = &sband->channels[12]; /* CH 13 */ | |
258 | if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
259 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; | |
260 | return; | |
261 | } | |
f078f209 | 262 | |
84540869 LR |
263 | /* |
264 | * If a country IE has been recieved check its rule for this | |
5f8e077c | 265 | * channel first before enabling active scan. The passive scan |
84540869 LR |
266 | * would have been enforced by the initial processing of our |
267 | * custom regulatory domain. | |
268 | */ | |
f078f209 | 269 | |
5f8e077c | 270 | ch = &sband->channels[11]; /* CH 12 */ |
038659e7 | 271 | r = freq_reg_info(wiphy, ch->center_freq, bandwidth, ®_rule); |
5f8e077c LR |
272 | if (!r) { |
273 | if (!(reg_rule->flags & NL80211_RRF_PASSIVE_SCAN)) | |
274 | if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
275 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; | |
f078f209 LR |
276 | } |
277 | ||
5f8e077c | 278 | ch = &sband->channels[12]; /* CH 13 */ |
038659e7 | 279 | r = freq_reg_info(wiphy, ch->center_freq, bandwidth, ®_rule); |
5f8e077c LR |
280 | if (!r) { |
281 | if (!(reg_rule->flags & NL80211_RRF_PASSIVE_SCAN)) | |
282 | if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
283 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; | |
f078f209 | 284 | } |
f078f209 LR |
285 | } |
286 | ||
5f8e077c | 287 | /* Always apply Radar/DFS rules on freq range 5260 MHz - 5700 MHz */ |
e3bb249b | 288 | static void ath_reg_apply_radar_flags(struct wiphy *wiphy) |
f078f209 | 289 | { |
5f8e077c LR |
290 | struct ieee80211_supported_band *sband; |
291 | struct ieee80211_channel *ch; | |
292 | unsigned int i; | |
f078f209 | 293 | |
5f8e077c LR |
294 | if (!wiphy->bands[IEEE80211_BAND_5GHZ]) |
295 | return; | |
f078f209 | 296 | |
5f8e077c | 297 | sband = wiphy->bands[IEEE80211_BAND_5GHZ]; |
f078f209 | 298 | |
5f8e077c LR |
299 | for (i = 0; i < sband->n_channels; i++) { |
300 | ch = &sband->channels[i]; | |
3a702e49 | 301 | if (!ath_is_radar_freq(ch->center_freq)) |
5f8e077c LR |
302 | continue; |
303 | /* We always enable radar detection/DFS on this | |
304 | * frequency range. Additionally we also apply on | |
305 | * this frequency range: | |
306 | * - If STA mode does not yet have DFS supports disable | |
307 | * active scanning | |
308 | * - If adhoc mode does not support DFS yet then | |
309 | * disable adhoc in the frequency. | |
310 | * - If AP mode does not yet support radar detection/DFS | |
311 | * do not allow AP mode | |
312 | */ | |
313 | if (!(ch->flags & IEEE80211_CHAN_DISABLED)) | |
314 | ch->flags |= IEEE80211_CHAN_RADAR | | |
315 | IEEE80211_CHAN_NO_IBSS | | |
316 | IEEE80211_CHAN_PASSIVE_SCAN; | |
317 | } | |
318 | } | |
f078f209 | 319 | |
e3bb249b | 320 | static void ath_reg_apply_world_flags(struct wiphy *wiphy, |
6b2b2ffb LR |
321 | enum nl80211_reg_initiator initiator, |
322 | struct ath_regulatory *reg) | |
5f8e077c | 323 | { |
c02cf373 | 324 | switch (reg->regpair->regDmnEnum) { |
5f8e077c LR |
325 | case 0x60: |
326 | case 0x63: | |
327 | case 0x66: | |
328 | case 0x67: | |
3a702e49 | 329 | ath_reg_apply_beaconing_flags(wiphy, initiator); |
5f8e077c LR |
330 | break; |
331 | case 0x68: | |
3a702e49 BC |
332 | ath_reg_apply_beaconing_flags(wiphy, initiator); |
333 | ath_reg_apply_active_scan_flags(wiphy, initiator); | |
5f8e077c LR |
334 | break; |
335 | } | |
336 | return; | |
337 | } | |
f078f209 | 338 | |
3a702e49 | 339 | int ath_reg_notifier_apply(struct wiphy *wiphy, |
6b2b2ffb LR |
340 | struct regulatory_request *request, |
341 | struct ath_regulatory *reg) | |
5f8e077c | 342 | { |
5f8e077c | 343 | /* We always apply this */ |
3a702e49 | 344 | ath_reg_apply_radar_flags(wiphy); |
f078f209 | 345 | |
5f8e077c | 346 | switch (request->initiator) { |
7db90f4a LR |
347 | case NL80211_REGDOM_SET_BY_DRIVER: |
348 | case NL80211_REGDOM_SET_BY_CORE: | |
349 | case NL80211_REGDOM_SET_BY_USER: | |
5f8e077c | 350 | break; |
7db90f4a | 351 | case NL80211_REGDOM_SET_BY_COUNTRY_IE: |
3a702e49 BC |
352 | if (ath_is_world_regd(reg)) |
353 | ath_reg_apply_world_flags(wiphy, request->initiator, | |
354 | reg); | |
5f8e077c LR |
355 | break; |
356 | } | |
f078f209 | 357 | |
5f8e077c | 358 | return 0; |
f078f209 | 359 | } |
3a702e49 | 360 | EXPORT_SYMBOL(ath_reg_notifier_apply); |
f078f209 | 361 | |
e3bb249b | 362 | static bool ath_regd_is_eeprom_valid(struct ath_regulatory *reg) |
c02cf373 | 363 | { |
3a702e49 | 364 | u16 rd = ath_regd_get_eepromRD(reg); |
5f8e077c | 365 | int i; |
f078f209 | 366 | |
5f8e077c LR |
367 | if (rd & COUNTRY_ERD_FLAG) { |
368 | /* EEPROM value is a country code */ | |
369 | u16 cc = rd & ~COUNTRY_ERD_FLAG; | |
e03e5ffd LR |
370 | printk(KERN_DEBUG |
371 | "ath: EEPROM indicates we should expect " | |
372 | "a country code\n"); | |
5f8e077c LR |
373 | for (i = 0; i < ARRAY_SIZE(allCountries); i++) |
374 | if (allCountries[i].countryCode == cc) | |
375 | return true; | |
376 | } else { | |
377 | /* EEPROM value is a regpair value */ | |
e03e5ffd LR |
378 | if (rd != CTRY_DEFAULT) |
379 | printk(KERN_DEBUG "ath: EEPROM indicates we " | |
380 | "should expect a direct regpair map\n"); | |
5f8e077c LR |
381 | for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) |
382 | if (regDomainPairs[i].regDmnEnum == rd) | |
383 | return true; | |
f078f209 | 384 | } |
c02cf373 | 385 | printk(KERN_DEBUG |
3a702e49 | 386 | "ath: invalid regulatory domain/country code 0x%x\n", rd); |
f078f209 LR |
387 | return false; |
388 | } | |
389 | ||
5f8e077c | 390 | /* EEPROM country code to regpair mapping */ |
f078f209 | 391 | static struct country_code_to_enum_rd* |
3a702e49 | 392 | ath_regd_find_country(u16 countryCode) |
f078f209 LR |
393 | { |
394 | int i; | |
395 | ||
396 | for (i = 0; i < ARRAY_SIZE(allCountries); i++) { | |
397 | if (allCountries[i].countryCode == countryCode) | |
398 | return &allCountries[i]; | |
399 | } | |
400 | return NULL; | |
401 | } | |
402 | ||
5f8e077c LR |
403 | /* EEPROM rd code to regpair mapping */ |
404 | static struct country_code_to_enum_rd* | |
3a702e49 | 405 | ath_regd_find_country_by_rd(int regdmn) |
5f8e077c LR |
406 | { |
407 | int i; | |
408 | ||
409 | for (i = 0; i < ARRAY_SIZE(allCountries); i++) { | |
410 | if (allCountries[i].regDmnEnum == regdmn) | |
411 | return &allCountries[i]; | |
412 | } | |
413 | return NULL; | |
414 | } | |
415 | ||
416 | /* Returns the map of the EEPROM set RD to a country code */ | |
3a702e49 | 417 | static u16 ath_regd_get_default_country(u16 rd) |
f078f209 | 418 | { |
f078f209 LR |
419 | if (rd & COUNTRY_ERD_FLAG) { |
420 | struct country_code_to_enum_rd *country = NULL; | |
421 | u16 cc = rd & ~COUNTRY_ERD_FLAG; | |
422 | ||
3a702e49 | 423 | country = ath_regd_find_country(cc); |
f078f209 LR |
424 | if (country != NULL) |
425 | return cc; | |
426 | } | |
427 | ||
f078f209 LR |
428 | return CTRY_DEFAULT; |
429 | } | |
430 | ||
5f8e077c | 431 | static struct reg_dmn_pair_mapping* |
3a702e49 | 432 | ath_get_regpair(int regdmn) |
f078f209 LR |
433 | { |
434 | int i; | |
435 | ||
5f8e077c LR |
436 | if (regdmn == NO_ENUMRD) |
437 | return NULL; | |
f078f209 | 438 | for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) { |
5f8e077c LR |
439 | if (regDomainPairs[i].regDmnEnum == regdmn) |
440 | return ®DomainPairs[i]; | |
f078f209 | 441 | } |
5f8e077c | 442 | return NULL; |
f078f209 LR |
443 | } |
444 | ||
6b2b2ffb LR |
445 | static int |
446 | ath_regd_init_wiphy(struct ath_regulatory *reg, | |
447 | struct wiphy *wiphy, | |
448 | int (*reg_notifier)(struct wiphy *wiphy, | |
e3bb249b BC |
449 | struct regulatory_request *request)) |
450 | { | |
451 | const struct ieee80211_regdomain *regd; | |
452 | ||
453 | wiphy->reg_notifier = reg_notifier; | |
5be83de5 | 454 | wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY; |
e3bb249b BC |
455 | |
456 | if (ath_is_world_regd(reg)) { | |
457 | /* | |
458 | * Anything applied here (prior to wiphy registration) gets | |
459 | * saved on the wiphy orig_* parameters | |
460 | */ | |
461 | regd = ath_world_regdomain(reg); | |
5be83de5 | 462 | wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
e3bb249b BC |
463 | } else { |
464 | /* | |
465 | * This gets applied in the case of the absense of CRDA, | |
466 | * it's our own custom world regulatory domain, similar to | |
467 | * cfg80211's but we enable passive scanning. | |
468 | */ | |
469 | regd = ath_default_world_regdomain(); | |
470 | } | |
471 | wiphy_apply_custom_regulatory(wiphy, regd); | |
472 | ath_reg_apply_radar_flags(wiphy); | |
473 | ath_reg_apply_world_flags(wiphy, NL80211_REGDOM_SET_BY_DRIVER, reg); | |
474 | return 0; | |
475 | } | |
476 | ||
5d2214ac LR |
477 | /* |
478 | * Some users have reported their EEPROM programmed with | |
479 | * 0x8000 set, this is not a supported regulatory domain | |
480 | * but since we have more than one user with it we need | |
481 | * a solution for them. We default to 0x64, which is the | |
482 | * default Atheros world regulatory domain. | |
483 | */ | |
484 | static void ath_regd_sanitize(struct ath_regulatory *reg) | |
485 | { | |
486 | if (reg->current_rd != COUNTRY_ERD_FLAG) | |
487 | return; | |
488 | printk(KERN_DEBUG "ath: EEPROM regdomain sanitized\n"); | |
489 | reg->current_rd = 0x64; | |
490 | } | |
491 | ||
6b2b2ffb LR |
492 | int |
493 | ath_regd_init(struct ath_regulatory *reg, | |
494 | struct wiphy *wiphy, | |
495 | int (*reg_notifier)(struct wiphy *wiphy, | |
496 | struct regulatory_request *request)) | |
f078f209 | 497 | { |
f078f209 | 498 | struct country_code_to_enum_rd *country = NULL; |
e775aaf0 | 499 | u16 regdmn; |
f078f209 | 500 | |
e03e5ffd LR |
501 | if (!reg) |
502 | return -EINVAL; | |
503 | ||
5d2214ac LR |
504 | ath_regd_sanitize(reg); |
505 | ||
e03e5ffd LR |
506 | printk(KERN_DEBUG "ath: EEPROM regdomain: 0x%0x\n", reg->current_rd); |
507 | ||
3a702e49 | 508 | if (!ath_regd_is_eeprom_valid(reg)) { |
85efc86e | 509 | printk(KERN_ERR "ath: Invalid EEPROM contents\n"); |
5f8e077c | 510 | return -EINVAL; |
f078f209 LR |
511 | } |
512 | ||
3a702e49 BC |
513 | regdmn = ath_regd_get_eepromRD(reg); |
514 | reg->country_code = ath_regd_get_default_country(regdmn); | |
f078f209 | 515 | |
c02cf373 | 516 | if (reg->country_code == CTRY_DEFAULT && |
e03e5ffd LR |
517 | regdmn == CTRY_DEFAULT) { |
518 | printk(KERN_DEBUG "ath: EEPROM indicates default " | |
519 | "country code should be used\n"); | |
c02cf373 | 520 | reg->country_code = CTRY_UNITED_STATES; |
e03e5ffd | 521 | } |
f078f209 | 522 | |
c02cf373 | 523 | if (reg->country_code == CTRY_DEFAULT) { |
f078f209 LR |
524 | country = NULL; |
525 | } else { | |
e03e5ffd LR |
526 | printk(KERN_DEBUG "ath: doing EEPROM country->regdmn " |
527 | "map search\n"); | |
3a702e49 | 528 | country = ath_regd_find_country(reg->country_code); |
f078f209 | 529 | if (country == NULL) { |
c02cf373 | 530 | printk(KERN_DEBUG |
e03e5ffd LR |
531 | "ath: no valid country maps found for " |
532 | "country code: 0x%0x\n", | |
c02cf373 | 533 | reg->country_code); |
5f8e077c | 534 | return -EINVAL; |
e03e5ffd | 535 | } else { |
f078f209 | 536 | regdmn = country->regDmnEnum; |
e03e5ffd LR |
537 | printk(KERN_DEBUG "ath: country maps to " |
538 | "regdmn code: 0x%0x\n", | |
539 | regdmn); | |
540 | } | |
f078f209 LR |
541 | } |
542 | ||
3a702e49 | 543 | reg->regpair = ath_get_regpair(regdmn); |
f078f209 | 544 | |
c02cf373 | 545 | if (!reg->regpair) { |
3a702e49 | 546 | printk(KERN_DEBUG "ath: " |
5f8e077c LR |
547 | "No regulatory domain pair found, cannot continue\n"); |
548 | return -EINVAL; | |
f078f209 | 549 | } |
f078f209 | 550 | |
5f8e077c | 551 | if (!country) |
3a702e49 | 552 | country = ath_regd_find_country_by_rd(regdmn); |
f078f209 | 553 | |
5f8e077c | 554 | if (country) { |
c02cf373 BC |
555 | reg->alpha2[0] = country->isoName[0]; |
556 | reg->alpha2[1] = country->isoName[1]; | |
f078f209 | 557 | } else { |
c02cf373 BC |
558 | reg->alpha2[0] = '0'; |
559 | reg->alpha2[1] = '0'; | |
f078f209 LR |
560 | } |
561 | ||
3a702e49 | 562 | printk(KERN_DEBUG "ath: Country alpha2 being used: %c%c\n", |
c02cf373 | 563 | reg->alpha2[0], reg->alpha2[1]); |
e03e5ffd | 564 | printk(KERN_DEBUG "ath: Regpair used: 0x%0x\n", |
c02cf373 | 565 | reg->regpair->regDmnEnum); |
f078f209 | 566 | |
e3bb249b | 567 | ath_regd_init_wiphy(reg, wiphy, reg_notifier); |
5f8e077c | 568 | return 0; |
f078f209 | 569 | } |
3a702e49 | 570 | EXPORT_SYMBOL(ath_regd_init); |
f078f209 | 571 | |
3a702e49 BC |
572 | u32 ath_regd_get_band_ctl(struct ath_regulatory *reg, |
573 | enum ieee80211_band band) | |
f078f209 | 574 | { |
c02cf373 BC |
575 | if (!reg->regpair || |
576 | (reg->country_code == CTRY_DEFAULT && | |
3a702e49 | 577 | is_wwr_sku(ath_regd_get_eepromRD(reg)))) { |
fc2ada30 BC |
578 | return SD_NO_CTL; |
579 | } | |
580 | ||
581 | switch (band) { | |
582 | case IEEE80211_BAND_2GHZ: | |
c02cf373 | 583 | return reg->regpair->reg_2ghz_ctl; |
fc2ada30 | 584 | case IEEE80211_BAND_5GHZ: |
c02cf373 | 585 | return reg->regpair->reg_5ghz_ctl; |
fc2ada30 BC |
586 | default: |
587 | return NO_CTL; | |
f078f209 | 588 | } |
fc2ada30 | 589 | } |
3a702e49 | 590 | EXPORT_SYMBOL(ath_regd_get_band_ctl); |