Commit | Line | Data |
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f078f209 LR |
1 | /* |
2 | * Copyright (c) 2008 Atheros Communications Inc. | |
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> | |
394cf0a1 | 19 | #include "ath9k.h" |
f078f209 LR |
20 | #include "regd_common.h" |
21 | ||
5f8e077c LR |
22 | /* |
23 | * This is a set of common rules used by our world regulatory domains. | |
24 | * We have 12 world regulatory domains. To save space we consolidate | |
25 | * the regulatory domains in 5 structures by frequency and change | |
26 | * the flags on our reg_notifier() on a case by case basis. | |
27 | */ | |
f078f209 | 28 | |
5f8e077c LR |
29 | /* Only these channels all allow active scan on all world regulatory domains */ |
30 | #define ATH9K_2GHZ_CH01_11 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0) | |
31 | ||
32 | /* We enable active scan on these a case by case basis by regulatory domain */ | |
33 | #define ATH9K_2GHZ_CH12_13 REG_RULE(2467-10, 2472+10, 40, 0, 20,\ | |
34 | NL80211_RRF_PASSIVE_SCAN) | |
35 | #define ATH9K_2GHZ_CH14 REG_RULE(2484-10, 2484+10, 40, 0, 20,\ | |
36 | NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_OFDM) | |
37 | ||
38 | /* We allow IBSS on these on a case by case basis by regulatory domain */ | |
39 | #define ATH9K_5GHZ_5150_5350 REG_RULE(5150-10, 5350+10, 40, 0, 30,\ | |
40 | NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS) | |
41 | #define ATH9K_5GHZ_5470_5850 REG_RULE(5470-10, 5850+10, 40, 0, 30,\ | |
42 | NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS) | |
43 | #define ATH9K_5GHZ_5725_5850 REG_RULE(5725-10, 5850+10, 40, 0, 30,\ | |
44 | NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS) | |
45 | ||
46 | #define ATH9K_2GHZ_ALL ATH9K_2GHZ_CH01_11, \ | |
47 | ATH9K_2GHZ_CH12_13, \ | |
48 | ATH9K_2GHZ_CH14 | |
49 | ||
50 | #define ATH9K_5GHZ_ALL ATH9K_5GHZ_5150_5350, \ | |
51 | ATH9K_5GHZ_5470_5850 | |
52 | /* This one skips what we call "mid band" */ | |
53 | #define ATH9K_5GHZ_NO_MIDBAND ATH9K_5GHZ_5150_5350, \ | |
54 | ATH9K_5GHZ_5725_5850 | |
55 | ||
56 | /* Can be used for: | |
57 | * 0x60, 0x61, 0x62 */ | |
58 | static const struct ieee80211_regdomain ath9k_world_regdom_60_61_62 = { | |
59 | .n_reg_rules = 5, | |
60 | .alpha2 = "99", | |
61 | .reg_rules = { | |
62 | ATH9K_2GHZ_ALL, | |
63 | ATH9K_5GHZ_ALL, | |
64 | } | |
65 | }; | |
66 | ||
67 | /* Can be used by 0x63 and 0x65 */ | |
68 | static const struct ieee80211_regdomain ath9k_world_regdom_63_65 = { | |
69 | .n_reg_rules = 4, | |
70 | .alpha2 = "99", | |
71 | .reg_rules = { | |
72 | ATH9K_2GHZ_CH01_11, | |
73 | ATH9K_2GHZ_CH12_13, | |
74 | ATH9K_5GHZ_NO_MIDBAND, | |
75 | } | |
76 | }; | |
77 | ||
78 | /* Can be used by 0x64 only */ | |
79 | static const struct ieee80211_regdomain ath9k_world_regdom_64 = { | |
80 | .n_reg_rules = 3, | |
81 | .alpha2 = "99", | |
82 | .reg_rules = { | |
83 | ATH9K_2GHZ_CH01_11, | |
84 | ATH9K_5GHZ_NO_MIDBAND, | |
85 | } | |
86 | }; | |
87 | ||
88 | /* Can be used by 0x66 and 0x69 */ | |
89 | static const struct ieee80211_regdomain ath9k_world_regdom_66_69 = { | |
90 | .n_reg_rules = 3, | |
91 | .alpha2 = "99", | |
92 | .reg_rules = { | |
93 | ATH9K_2GHZ_CH01_11, | |
94 | ATH9K_5GHZ_ALL, | |
95 | } | |
96 | }; | |
97 | ||
98 | /* Can be used by 0x67, 0x6A and 0x68 */ | |
99 | static const struct ieee80211_regdomain ath9k_world_regdom_67_68_6A = { | |
100 | .n_reg_rules = 4, | |
101 | .alpha2 = "99", | |
102 | .reg_rules = { | |
103 | ATH9K_2GHZ_CH01_11, | |
104 | ATH9K_2GHZ_CH12_13, | |
105 | ATH9K_5GHZ_ALL, | |
106 | } | |
107 | }; | |
f078f209 | 108 | |
cbe61d8a | 109 | static u16 ath9k_regd_get_eepromRD(struct ath_hw *ah) |
f078f209 | 110 | { |
d6bad496 | 111 | return ah->regulatory.current_rd & ~WORLDWIDE_ROAMING_FLAG; |
f078f209 LR |
112 | } |
113 | ||
cbe61d8a | 114 | u16 ath9k_regd_get_rd(struct ath_hw *ah) |
f078f209 | 115 | { |
5f8e077c LR |
116 | return ath9k_regd_get_eepromRD(ah); |
117 | } | |
f078f209 | 118 | |
cbe61d8a | 119 | bool ath9k_is_world_regd(struct ath_hw *ah) |
5f8e077c LR |
120 | { |
121 | return isWwrSKU(ah); | |
f078f209 LR |
122 | } |
123 | ||
5f8e077c | 124 | const struct ieee80211_regdomain *ath9k_default_world_regdomain(void) |
f078f209 | 125 | { |
5f8e077c LR |
126 | /* this is the most restrictive */ |
127 | return &ath9k_world_regdom_64; | |
128 | } | |
f078f209 | 129 | |
cbe61d8a | 130 | const struct ieee80211_regdomain *ath9k_world_regdomain(struct ath_hw *ah) |
5f8e077c | 131 | { |
d6bad496 | 132 | switch (ah->regulatory.regpair->regDmnEnum) { |
5f8e077c LR |
133 | case 0x60: |
134 | case 0x61: | |
135 | case 0x62: | |
136 | return &ath9k_world_regdom_60_61_62; | |
137 | case 0x63: | |
138 | case 0x65: | |
139 | return &ath9k_world_regdom_63_65; | |
140 | case 0x64: | |
141 | return &ath9k_world_regdom_64; | |
142 | case 0x66: | |
143 | case 0x69: | |
144 | return &ath9k_world_regdom_66_69; | |
145 | case 0x67: | |
146 | case 0x68: | |
147 | case 0x6A: | |
148 | return &ath9k_world_regdom_67_68_6A; | |
149 | default: | |
150 | WARN_ON(1); | |
151 | return ath9k_default_world_regdomain(); | |
f078f209 | 152 | } |
f078f209 LR |
153 | } |
154 | ||
547e4c2e LR |
155 | /* Frequency is one where radar detection is required */ |
156 | static bool ath9k_is_radar_freq(u16 center_freq) | |
157 | { | |
158 | return (center_freq >= 5260 && center_freq <= 5700); | |
159 | } | |
160 | ||
7519a8f0 LR |
161 | /* |
162 | * Enable adhoc on 5 GHz if allowed by 11d. | |
163 | * Remove passive scan if channel is allowed by 11d, | |
164 | * except when on radar frequencies. | |
165 | */ | |
166 | static void ath9k_reg_apply_5ghz_beaconing_flags(struct wiphy *wiphy, | |
5f8e077c | 167 | enum reg_set_by setby) |
f078f209 | 168 | { |
5f8e077c LR |
169 | struct ieee80211_supported_band *sband; |
170 | const struct ieee80211_reg_rule *reg_rule; | |
171 | struct ieee80211_channel *ch; | |
172 | unsigned int i; | |
173 | u32 bandwidth = 0; | |
174 | int r; | |
175 | ||
176 | if (setby != REGDOM_SET_BY_COUNTRY_IE) | |
177 | return; | |
8c63c46d | 178 | if (!wiphy->bands[IEEE80211_BAND_5GHZ]) |
5f8e077c | 179 | return; |
f078f209 | 180 | |
5f8e077c LR |
181 | sband = wiphy->bands[IEEE80211_BAND_5GHZ]; |
182 | for (i = 0; i < sband->n_channels; i++) { | |
183 | ch = &sband->channels[i]; | |
184 | r = freq_reg_info(wiphy, ch->center_freq, | |
185 | &bandwidth, ®_rule); | |
186 | if (r) | |
187 | continue; | |
188 | /* If 11d had a rule for this channel ensure we enable adhoc | |
189 | * if it allows us to use it. Note that we would have disabled | |
190 | * it by applying our static world regdomain by default during | |
191 | * probe */ | |
192 | if (!(reg_rule->flags & NL80211_RRF_NO_IBSS)) | |
de9f97ef | 193 | ch->flags &= ~IEEE80211_CHAN_NO_IBSS; |
7519a8f0 LR |
194 | if (!ath9k_is_radar_freq(ch->center_freq)) |
195 | continue; | |
196 | if (!(reg_rule->flags & NL80211_RRF_PASSIVE_SCAN)) | |
de9f97ef | 197 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; |
5f8e077c | 198 | } |
f078f209 LR |
199 | } |
200 | ||
5f8e077c LR |
201 | /* Allows active scan scan on Ch 12 and 13 */ |
202 | static void ath9k_reg_apply_active_scan_flags(struct wiphy *wiphy, | |
203 | enum reg_set_by setby) | |
f078f209 | 204 | { |
5f8e077c LR |
205 | struct ieee80211_supported_band *sband; |
206 | struct ieee80211_channel *ch; | |
207 | const struct ieee80211_reg_rule *reg_rule; | |
208 | u32 bandwidth = 0; | |
209 | int r; | |
210 | ||
211 | /* Force passive scan on Channels 12-13 */ | |
212 | sband = wiphy->bands[IEEE80211_BAND_2GHZ]; | |
213 | ||
214 | /* If no country IE has been received always enable active scan | |
215 | * on these channels */ | |
216 | if (setby != REGDOM_SET_BY_COUNTRY_IE) { | |
217 | ch = &sband->channels[11]; /* CH 12 */ | |
218 | if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
219 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; | |
220 | ch = &sband->channels[12]; /* CH 13 */ | |
221 | if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
222 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; | |
223 | return; | |
224 | } | |
f078f209 | 225 | |
5f8e077c LR |
226 | /* If a country IE has been recieved check its rule for this |
227 | * channel first before enabling active scan. The passive scan | |
228 | * would have been enforced by the initial probe processing on | |
229 | * our custom regulatory domain. */ | |
f078f209 | 230 | |
5f8e077c LR |
231 | ch = &sband->channels[11]; /* CH 12 */ |
232 | r = freq_reg_info(wiphy, ch->center_freq, &bandwidth, ®_rule); | |
233 | if (!r) { | |
234 | if (!(reg_rule->flags & NL80211_RRF_PASSIVE_SCAN)) | |
235 | if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
236 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; | |
f078f209 LR |
237 | } |
238 | ||
5f8e077c LR |
239 | ch = &sband->channels[12]; /* CH 13 */ |
240 | r = freq_reg_info(wiphy, ch->center_freq, &bandwidth, ®_rule); | |
241 | if (!r) { | |
242 | if (!(reg_rule->flags & NL80211_RRF_PASSIVE_SCAN)) | |
243 | if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
244 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; | |
f078f209 | 245 | } |
f078f209 LR |
246 | } |
247 | ||
5f8e077c LR |
248 | /* Always apply Radar/DFS rules on freq range 5260 MHz - 5700 MHz */ |
249 | void ath9k_reg_apply_radar_flags(struct wiphy *wiphy) | |
f078f209 | 250 | { |
5f8e077c LR |
251 | struct ieee80211_supported_band *sband; |
252 | struct ieee80211_channel *ch; | |
253 | unsigned int i; | |
f078f209 | 254 | |
5f8e077c LR |
255 | if (!wiphy->bands[IEEE80211_BAND_5GHZ]) |
256 | return; | |
f078f209 | 257 | |
5f8e077c | 258 | sband = wiphy->bands[IEEE80211_BAND_5GHZ]; |
f078f209 | 259 | |
5f8e077c LR |
260 | for (i = 0; i < sband->n_channels; i++) { |
261 | ch = &sband->channels[i]; | |
547e4c2e | 262 | if (!ath9k_is_radar_freq(ch->center_freq)) |
5f8e077c LR |
263 | continue; |
264 | /* We always enable radar detection/DFS on this | |
265 | * frequency range. Additionally we also apply on | |
266 | * this frequency range: | |
267 | * - If STA mode does not yet have DFS supports disable | |
268 | * active scanning | |
269 | * - If adhoc mode does not support DFS yet then | |
270 | * disable adhoc in the frequency. | |
271 | * - If AP mode does not yet support radar detection/DFS | |
272 | * do not allow AP mode | |
273 | */ | |
274 | if (!(ch->flags & IEEE80211_CHAN_DISABLED)) | |
275 | ch->flags |= IEEE80211_CHAN_RADAR | | |
276 | IEEE80211_CHAN_NO_IBSS | | |
277 | IEEE80211_CHAN_PASSIVE_SCAN; | |
278 | } | |
279 | } | |
f078f209 | 280 | |
5f8e077c LR |
281 | void ath9k_reg_apply_world_flags(struct wiphy *wiphy, enum reg_set_by setby) |
282 | { | |
283 | struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); | |
284 | struct ath_softc *sc = hw->priv; | |
cbe61d8a | 285 | struct ath_hw *ah = sc->sc_ah; |
5f8e077c | 286 | |
d6bad496 | 287 | switch (ah->regulatory.regpair->regDmnEnum) { |
5f8e077c LR |
288 | case 0x60: |
289 | case 0x63: | |
290 | case 0x66: | |
291 | case 0x67: | |
7519a8f0 | 292 | ath9k_reg_apply_5ghz_beaconing_flags(wiphy, setby); |
5f8e077c LR |
293 | break; |
294 | case 0x68: | |
7519a8f0 | 295 | ath9k_reg_apply_5ghz_beaconing_flags(wiphy, setby); |
5f8e077c LR |
296 | ath9k_reg_apply_active_scan_flags(wiphy, setby); |
297 | break; | |
298 | } | |
299 | return; | |
300 | } | |
f078f209 | 301 | |
5f8e077c LR |
302 | int ath9k_reg_notifier(struct wiphy *wiphy, struct regulatory_request *request) |
303 | { | |
304 | struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); | |
305 | struct ath_softc *sc = hw->priv; | |
f078f209 | 306 | |
5f8e077c LR |
307 | /* We always apply this */ |
308 | ath9k_reg_apply_radar_flags(wiphy); | |
f078f209 | 309 | |
5f8e077c LR |
310 | switch (request->initiator) { |
311 | case REGDOM_SET_BY_DRIVER: | |
312 | case REGDOM_SET_BY_INIT: | |
313 | case REGDOM_SET_BY_CORE: | |
314 | case REGDOM_SET_BY_USER: | |
315 | break; | |
316 | case REGDOM_SET_BY_COUNTRY_IE: | |
317 | if (ath9k_is_world_regd(sc->sc_ah)) | |
318 | ath9k_reg_apply_world_flags(wiphy, request->initiator); | |
319 | break; | |
320 | } | |
f078f209 | 321 | |
5f8e077c | 322 | return 0; |
f078f209 LR |
323 | } |
324 | ||
cbe61d8a | 325 | bool ath9k_regd_is_eeprom_valid(struct ath_hw *ah) |
f078f209 | 326 | { |
5f8e077c LR |
327 | u16 rd = ath9k_regd_get_eepromRD(ah); |
328 | int i; | |
f078f209 | 329 | |
5f8e077c LR |
330 | if (rd & COUNTRY_ERD_FLAG) { |
331 | /* EEPROM value is a country code */ | |
332 | u16 cc = rd & ~COUNTRY_ERD_FLAG; | |
333 | for (i = 0; i < ARRAY_SIZE(allCountries); i++) | |
334 | if (allCountries[i].countryCode == cc) | |
335 | return true; | |
336 | } else { | |
337 | /* EEPROM value is a regpair value */ | |
338 | for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) | |
339 | if (regDomainPairs[i].regDmnEnum == rd) | |
340 | return true; | |
f078f209 | 341 | } |
5f8e077c LR |
342 | DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, |
343 | "invalid regulatory domain/country code 0x%x\n", rd); | |
f078f209 LR |
344 | return false; |
345 | } | |
346 | ||
5f8e077c | 347 | /* EEPROM country code to regpair mapping */ |
f078f209 LR |
348 | static struct country_code_to_enum_rd* |
349 | ath9k_regd_find_country(u16 countryCode) | |
350 | { | |
351 | int i; | |
352 | ||
353 | for (i = 0; i < ARRAY_SIZE(allCountries); i++) { | |
354 | if (allCountries[i].countryCode == countryCode) | |
355 | return &allCountries[i]; | |
356 | } | |
357 | return NULL; | |
358 | } | |
359 | ||
5f8e077c LR |
360 | /* EEPROM rd code to regpair mapping */ |
361 | static struct country_code_to_enum_rd* | |
362 | ath9k_regd_find_country_by_rd(int regdmn) | |
363 | { | |
364 | int i; | |
365 | ||
366 | for (i = 0; i < ARRAY_SIZE(allCountries); i++) { | |
367 | if (allCountries[i].regDmnEnum == regdmn) | |
368 | return &allCountries[i]; | |
369 | } | |
370 | return NULL; | |
371 | } | |
372 | ||
373 | /* Returns the map of the EEPROM set RD to a country code */ | |
cbe61d8a | 374 | static u16 ath9k_regd_get_default_country(struct ath_hw *ah) |
f078f209 LR |
375 | { |
376 | u16 rd; | |
f078f209 LR |
377 | |
378 | rd = ath9k_regd_get_eepromRD(ah); | |
379 | if (rd & COUNTRY_ERD_FLAG) { | |
380 | struct country_code_to_enum_rd *country = NULL; | |
381 | u16 cc = rd & ~COUNTRY_ERD_FLAG; | |
382 | ||
383 | country = ath9k_regd_find_country(cc); | |
384 | if (country != NULL) | |
385 | return cc; | |
386 | } | |
387 | ||
f078f209 LR |
388 | return CTRY_DEFAULT; |
389 | } | |
390 | ||
5f8e077c LR |
391 | static struct reg_dmn_pair_mapping* |
392 | ath9k_get_regpair(int regdmn) | |
f078f209 LR |
393 | { |
394 | int i; | |
395 | ||
5f8e077c LR |
396 | if (regdmn == NO_ENUMRD) |
397 | return NULL; | |
f078f209 | 398 | for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) { |
5f8e077c LR |
399 | if (regDomainPairs[i].regDmnEnum == regdmn) |
400 | return ®DomainPairs[i]; | |
f078f209 | 401 | } |
5f8e077c | 402 | return NULL; |
f078f209 LR |
403 | } |
404 | ||
cbe61d8a | 405 | int ath9k_regd_init(struct ath_hw *ah) |
f078f209 | 406 | { |
f078f209 | 407 | struct country_code_to_enum_rd *country = NULL; |
f078f209 | 408 | int regdmn; |
f078f209 LR |
409 | |
410 | if (!ath9k_regd_is_eeprom_valid(ah)) { | |
411 | DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, | |
04bd4638 | 412 | "Invalid EEPROM contents\n"); |
5f8e077c | 413 | return -EINVAL; |
f078f209 LR |
414 | } |
415 | ||
d6bad496 | 416 | ah->regulatory.country_code = ath9k_regd_get_default_country(ah); |
f078f209 | 417 | |
d6bad496 | 418 | if (ah->regulatory.country_code == CTRY_DEFAULT && |
5f8e077c | 419 | ath9k_regd_get_eepromRD(ah) == CTRY_DEFAULT) |
d6bad496 | 420 | ah->regulatory.country_code = CTRY_UNITED_STATES; |
f078f209 | 421 | |
d6bad496 | 422 | if (ah->regulatory.country_code == CTRY_DEFAULT) { |
f078f209 LR |
423 | regdmn = ath9k_regd_get_eepromRD(ah); |
424 | country = NULL; | |
425 | } else { | |
d6bad496 | 426 | country = ath9k_regd_find_country(ah->regulatory.country_code); |
f078f209 LR |
427 | if (country == NULL) { |
428 | DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, | |
429 | "Country is NULL!!!!, cc= %d\n", | |
d6bad496 | 430 | ah->regulatory.country_code); |
5f8e077c LR |
431 | return -EINVAL; |
432 | } else | |
f078f209 | 433 | regdmn = country->regDmnEnum; |
f078f209 LR |
434 | } |
435 | ||
d6bad496 S |
436 | ah->regulatory.current_rd_inuse = regdmn; |
437 | ah->regulatory.regpair = ath9k_get_regpair(regdmn); | |
f078f209 | 438 | |
d6bad496 | 439 | if (!ah->regulatory.regpair) { |
5f8e077c LR |
440 | DPRINTF(ah->ah_sc, ATH_DBG_FATAL, |
441 | "No regulatory domain pair found, cannot continue\n"); | |
442 | return -EINVAL; | |
f078f209 | 443 | } |
f078f209 | 444 | |
5f8e077c LR |
445 | if (!country) |
446 | country = ath9k_regd_find_country_by_rd(regdmn); | |
f078f209 | 447 | |
5f8e077c | 448 | if (country) { |
d6bad496 S |
449 | ah->regulatory.alpha2[0] = country->isoName[0]; |
450 | ah->regulatory.alpha2[1] = country->isoName[1]; | |
f078f209 | 451 | } else { |
d6bad496 S |
452 | ah->regulatory.alpha2[0] = '0'; |
453 | ah->regulatory.alpha2[1] = '0'; | |
f078f209 LR |
454 | } |
455 | ||
f078f209 | 456 | DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, |
0c6666e4 | 457 | "Country alpha2 being used: %c%c\n" |
d6bad496 S |
458 | "Regulatory.Regpair detected: 0x%0x\n", |
459 | ah->regulatory.alpha2[0], ah->regulatory.alpha2[1], | |
460 | ah->regulatory.regpair->regDmnEnum); | |
f078f209 | 461 | |
5f8e077c | 462 | return 0; |
f078f209 LR |
463 | } |
464 | ||
cbe61d8a | 465 | u32 ath9k_regd_get_ctl(struct ath_hw *ah, struct ath9k_channel *chan) |
f078f209 LR |
466 | { |
467 | u32 ctl = NO_CTL; | |
f078f209 | 468 | |
d6bad496 S |
469 | if (!ah->regulatory.regpair || |
470 | (ah->regulatory.country_code == CTRY_DEFAULT && isWwrSKU(ah))) { | |
f078f209 LR |
471 | if (IS_CHAN_B(chan)) |
472 | ctl = SD_NO_CTL | CTL_11B; | |
473 | else if (IS_CHAN_G(chan)) | |
474 | ctl = SD_NO_CTL | CTL_11G; | |
475 | else | |
476 | ctl = SD_NO_CTL | CTL_11A; | |
5f8e077c | 477 | return ctl; |
f078f209 | 478 | } |
f078f209 | 479 | |
5f8e077c | 480 | if (IS_CHAN_B(chan)) |
d6bad496 | 481 | ctl = ah->regulatory.regpair->reg_2ghz_ctl | CTL_11B; |
5f8e077c | 482 | else if (IS_CHAN_G(chan)) |
d6bad496 | 483 | ctl = ah->regulatory.regpair->reg_5ghz_ctl | CTL_11G; |
5f8e077c | 484 | else |
d6bad496 | 485 | ctl = ah->regulatory.regpair->reg_5ghz_ctl | CTL_11A; |
f078f209 | 486 | |
5f8e077c | 487 | return ctl; |
f078f209 | 488 | } |