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> | |
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 | |
d0f48f9d BC |
109 | static inline bool is_wwr_sku(u16 regd) |
110 | { | |
111 | return ((regd & WORLD_SKU_MASK) == WORLD_SKU_PREFIX) || | |
112 | (regd == WORLD); | |
113 | } | |
114 | ||
cbe61d8a | 115 | static u16 ath9k_regd_get_eepromRD(struct ath_hw *ah) |
f078f209 | 116 | { |
d6bad496 | 117 | return ah->regulatory.current_rd & ~WORLDWIDE_ROAMING_FLAG; |
f078f209 LR |
118 | } |
119 | ||
cbe61d8a | 120 | bool ath9k_is_world_regd(struct ath_hw *ah) |
5f8e077c | 121 | { |
d0f48f9d | 122 | return is_wwr_sku(ath9k_regd_get_eepromRD(ah)); |
f078f209 LR |
123 | } |
124 | ||
5f8e077c | 125 | const struct ieee80211_regdomain *ath9k_default_world_regdomain(void) |
f078f209 | 126 | { |
5f8e077c LR |
127 | /* this is the most restrictive */ |
128 | return &ath9k_world_regdom_64; | |
129 | } | |
f078f209 | 130 | |
cbe61d8a | 131 | const struct ieee80211_regdomain *ath9k_world_regdomain(struct ath_hw *ah) |
5f8e077c | 132 | { |
d6bad496 | 133 | switch (ah->regulatory.regpair->regDmnEnum) { |
5f8e077c LR |
134 | case 0x60: |
135 | case 0x61: | |
136 | case 0x62: | |
137 | return &ath9k_world_regdom_60_61_62; | |
138 | case 0x63: | |
139 | case 0x65: | |
140 | return &ath9k_world_regdom_63_65; | |
141 | case 0x64: | |
142 | return &ath9k_world_regdom_64; | |
143 | case 0x66: | |
144 | case 0x69: | |
145 | return &ath9k_world_regdom_66_69; | |
146 | case 0x67: | |
147 | case 0x68: | |
148 | case 0x6A: | |
149 | return &ath9k_world_regdom_67_68_6A; | |
150 | default: | |
151 | WARN_ON(1); | |
152 | return ath9k_default_world_regdomain(); | |
f078f209 | 153 | } |
f078f209 LR |
154 | } |
155 | ||
547e4c2e LR |
156 | /* Frequency is one where radar detection is required */ |
157 | static bool ath9k_is_radar_freq(u16 center_freq) | |
158 | { | |
159 | return (center_freq >= 5260 && center_freq <= 5700); | |
160 | } | |
161 | ||
7519a8f0 | 162 | /* |
84540869 LR |
163 | * N.B: These exception rules do not apply radar freqs. |
164 | * | |
165 | * - We enable adhoc (or beaconing) if allowed by 11d | |
166 | * - We enable active scan if the channel is allowed by 11d | |
167 | * - If no country IE has been processed and a we determine we have | |
168 | * received a beacon on a channel we can enable active scan and | |
169 | * adhoc (or beaconing). | |
7519a8f0 | 170 | */ |
7db90f4a LR |
171 | static void ath9k_reg_apply_beaconing_flags( |
172 | struct wiphy *wiphy, | |
173 | enum nl80211_reg_initiator initiator) | |
f078f209 | 174 | { |
84540869 | 175 | enum ieee80211_band band; |
5f8e077c LR |
176 | struct ieee80211_supported_band *sband; |
177 | const struct ieee80211_reg_rule *reg_rule; | |
178 | struct ieee80211_channel *ch; | |
179 | unsigned int i; | |
180 | u32 bandwidth = 0; | |
181 | int r; | |
182 | ||
84540869 | 183 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
f078f209 | 184 | |
84540869 | 185 | if (!wiphy->bands[band]) |
5f8e077c | 186 | continue; |
84540869 LR |
187 | |
188 | sband = wiphy->bands[band]; | |
189 | ||
190 | for (i = 0; i < sband->n_channels; i++) { | |
191 | ||
192 | ch = &sband->channels[i]; | |
193 | ||
194 | if (ath9k_is_radar_freq(ch->center_freq) || | |
195 | (ch->flags & IEEE80211_CHAN_RADAR)) | |
196 | continue; | |
197 | ||
7db90f4a | 198 | if (initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE) { |
84540869 LR |
199 | r = freq_reg_info(wiphy, ch->center_freq, |
200 | &bandwidth, ®_rule); | |
201 | if (r) | |
202 | continue; | |
203 | /* | |
204 | * If 11d had a rule for this channel ensure | |
205 | * we enable adhoc/beaconing if it allows us to | |
206 | * use it. Note that we would have disabled it | |
207 | * by applying our static world regdomain by | |
208 | * default during init, prior to calling our | |
209 | * regulatory_hint(). | |
210 | */ | |
211 | if (!(reg_rule->flags & | |
212 | NL80211_RRF_NO_IBSS)) | |
213 | ch->flags &= | |
214 | ~IEEE80211_CHAN_NO_IBSS; | |
215 | if (!(reg_rule->flags & | |
216 | NL80211_RRF_PASSIVE_SCAN)) | |
217 | ch->flags &= | |
218 | ~IEEE80211_CHAN_PASSIVE_SCAN; | |
219 | } else { | |
220 | if (ch->beacon_found) | |
221 | ch->flags &= ~(IEEE80211_CHAN_NO_IBSS | | |
222 | IEEE80211_CHAN_PASSIVE_SCAN); | |
223 | } | |
224 | } | |
5f8e077c | 225 | } |
84540869 | 226 | |
f078f209 LR |
227 | } |
228 | ||
5f8e077c | 229 | /* Allows active scan scan on Ch 12 and 13 */ |
7db90f4a LR |
230 | static void ath9k_reg_apply_active_scan_flags( |
231 | struct wiphy *wiphy, | |
232 | enum nl80211_reg_initiator initiator) | |
f078f209 | 233 | { |
5f8e077c LR |
234 | struct ieee80211_supported_band *sband; |
235 | struct ieee80211_channel *ch; | |
236 | const struct ieee80211_reg_rule *reg_rule; | |
237 | u32 bandwidth = 0; | |
238 | int r; | |
239 | ||
5f8e077c LR |
240 | sband = wiphy->bands[IEEE80211_BAND_2GHZ]; |
241 | ||
84540869 LR |
242 | /* |
243 | * If no country IE has been received always enable active scan | |
244 | * on these channels. This is only done for specific regulatory SKUs | |
245 | */ | |
7db90f4a | 246 | if (initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE) { |
5f8e077c LR |
247 | ch = &sband->channels[11]; /* CH 12 */ |
248 | if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
249 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; | |
250 | ch = &sband->channels[12]; /* CH 13 */ | |
251 | if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
252 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; | |
253 | return; | |
254 | } | |
f078f209 | 255 | |
84540869 LR |
256 | /* |
257 | * If a country IE has been recieved check its rule for this | |
5f8e077c | 258 | * channel first before enabling active scan. The passive scan |
84540869 LR |
259 | * would have been enforced by the initial processing of our |
260 | * custom regulatory domain. | |
261 | */ | |
f078f209 | 262 | |
5f8e077c LR |
263 | ch = &sband->channels[11]; /* CH 12 */ |
264 | r = freq_reg_info(wiphy, ch->center_freq, &bandwidth, ®_rule); | |
265 | if (!r) { | |
266 | if (!(reg_rule->flags & NL80211_RRF_PASSIVE_SCAN)) | |
267 | if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
268 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; | |
f078f209 LR |
269 | } |
270 | ||
5f8e077c LR |
271 | ch = &sband->channels[12]; /* CH 13 */ |
272 | r = freq_reg_info(wiphy, ch->center_freq, &bandwidth, ®_rule); | |
273 | if (!r) { | |
274 | if (!(reg_rule->flags & NL80211_RRF_PASSIVE_SCAN)) | |
275 | if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
276 | ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; | |
f078f209 | 277 | } |
f078f209 LR |
278 | } |
279 | ||
5f8e077c LR |
280 | /* Always apply Radar/DFS rules on freq range 5260 MHz - 5700 MHz */ |
281 | void ath9k_reg_apply_radar_flags(struct wiphy *wiphy) | |
f078f209 | 282 | { |
5f8e077c LR |
283 | struct ieee80211_supported_band *sband; |
284 | struct ieee80211_channel *ch; | |
285 | unsigned int i; | |
f078f209 | 286 | |
5f8e077c LR |
287 | if (!wiphy->bands[IEEE80211_BAND_5GHZ]) |
288 | return; | |
f078f209 | 289 | |
5f8e077c | 290 | sband = wiphy->bands[IEEE80211_BAND_5GHZ]; |
f078f209 | 291 | |
5f8e077c LR |
292 | for (i = 0; i < sband->n_channels; i++) { |
293 | ch = &sband->channels[i]; | |
547e4c2e | 294 | if (!ath9k_is_radar_freq(ch->center_freq)) |
5f8e077c LR |
295 | continue; |
296 | /* We always enable radar detection/DFS on this | |
297 | * frequency range. Additionally we also apply on | |
298 | * this frequency range: | |
299 | * - If STA mode does not yet have DFS supports disable | |
300 | * active scanning | |
301 | * - If adhoc mode does not support DFS yet then | |
302 | * disable adhoc in the frequency. | |
303 | * - If AP mode does not yet support radar detection/DFS | |
304 | * do not allow AP mode | |
305 | */ | |
306 | if (!(ch->flags & IEEE80211_CHAN_DISABLED)) | |
307 | ch->flags |= IEEE80211_CHAN_RADAR | | |
308 | IEEE80211_CHAN_NO_IBSS | | |
309 | IEEE80211_CHAN_PASSIVE_SCAN; | |
310 | } | |
311 | } | |
f078f209 | 312 | |
7db90f4a LR |
313 | void ath9k_reg_apply_world_flags(struct wiphy *wiphy, |
314 | enum nl80211_reg_initiator initiator) | |
5f8e077c LR |
315 | { |
316 | struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); | |
bce048d7 JM |
317 | struct ath_wiphy *aphy = hw->priv; |
318 | struct ath_softc *sc = aphy->sc; | |
cbe61d8a | 319 | struct ath_hw *ah = sc->sc_ah; |
5f8e077c | 320 | |
d6bad496 | 321 | switch (ah->regulatory.regpair->regDmnEnum) { |
5f8e077c LR |
322 | case 0x60: |
323 | case 0x63: | |
324 | case 0x66: | |
325 | case 0x67: | |
7db90f4a | 326 | ath9k_reg_apply_beaconing_flags(wiphy, initiator); |
5f8e077c LR |
327 | break; |
328 | case 0x68: | |
7db90f4a LR |
329 | ath9k_reg_apply_beaconing_flags(wiphy, initiator); |
330 | ath9k_reg_apply_active_scan_flags(wiphy, initiator); | |
5f8e077c LR |
331 | break; |
332 | } | |
333 | return; | |
334 | } | |
f078f209 | 335 | |
5f8e077c LR |
336 | int ath9k_reg_notifier(struct wiphy *wiphy, struct regulatory_request *request) |
337 | { | |
338 | struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); | |
bce048d7 JM |
339 | struct ath_wiphy *aphy = hw->priv; |
340 | struct ath_softc *sc = aphy->sc; | |
f078f209 | 341 | |
5f8e077c LR |
342 | /* We always apply this */ |
343 | ath9k_reg_apply_radar_flags(wiphy); | |
f078f209 | 344 | |
5f8e077c | 345 | switch (request->initiator) { |
7db90f4a LR |
346 | case NL80211_REGDOM_SET_BY_DRIVER: |
347 | case NL80211_REGDOM_SET_BY_CORE: | |
348 | case NL80211_REGDOM_SET_BY_USER: | |
5f8e077c | 349 | break; |
7db90f4a | 350 | case NL80211_REGDOM_SET_BY_COUNTRY_IE: |
5f8e077c LR |
351 | if (ath9k_is_world_regd(sc->sc_ah)) |
352 | ath9k_reg_apply_world_flags(wiphy, request->initiator); | |
353 | break; | |
354 | } | |
f078f209 | 355 | |
5f8e077c | 356 | return 0; |
f078f209 LR |
357 | } |
358 | ||
cbe61d8a | 359 | bool ath9k_regd_is_eeprom_valid(struct ath_hw *ah) |
f078f209 | 360 | { |
5f8e077c LR |
361 | u16 rd = ath9k_regd_get_eepromRD(ah); |
362 | int i; | |
f078f209 | 363 | |
5f8e077c LR |
364 | if (rd & COUNTRY_ERD_FLAG) { |
365 | /* EEPROM value is a country code */ | |
366 | u16 cc = rd & ~COUNTRY_ERD_FLAG; | |
367 | for (i = 0; i < ARRAY_SIZE(allCountries); i++) | |
368 | if (allCountries[i].countryCode == cc) | |
369 | return true; | |
370 | } else { | |
371 | /* EEPROM value is a regpair value */ | |
372 | for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) | |
373 | if (regDomainPairs[i].regDmnEnum == rd) | |
374 | return true; | |
f078f209 | 375 | } |
5f8e077c LR |
376 | DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, |
377 | "invalid regulatory domain/country code 0x%x\n", rd); | |
f078f209 LR |
378 | return false; |
379 | } | |
380 | ||
5f8e077c | 381 | /* EEPROM country code to regpair mapping */ |
f078f209 LR |
382 | static struct country_code_to_enum_rd* |
383 | ath9k_regd_find_country(u16 countryCode) | |
384 | { | |
385 | int i; | |
386 | ||
387 | for (i = 0; i < ARRAY_SIZE(allCountries); i++) { | |
388 | if (allCountries[i].countryCode == countryCode) | |
389 | return &allCountries[i]; | |
390 | } | |
391 | return NULL; | |
392 | } | |
393 | ||
5f8e077c LR |
394 | /* EEPROM rd code to regpair mapping */ |
395 | static struct country_code_to_enum_rd* | |
396 | ath9k_regd_find_country_by_rd(int regdmn) | |
397 | { | |
398 | int i; | |
399 | ||
400 | for (i = 0; i < ARRAY_SIZE(allCountries); i++) { | |
401 | if (allCountries[i].regDmnEnum == regdmn) | |
402 | return &allCountries[i]; | |
403 | } | |
404 | return NULL; | |
405 | } | |
406 | ||
407 | /* Returns the map of the EEPROM set RD to a country code */ | |
e775aaf0 | 408 | static u16 ath9k_regd_get_default_country(u16 rd) |
f078f209 | 409 | { |
f078f209 LR |
410 | if (rd & COUNTRY_ERD_FLAG) { |
411 | struct country_code_to_enum_rd *country = NULL; | |
412 | u16 cc = rd & ~COUNTRY_ERD_FLAG; | |
413 | ||
414 | country = ath9k_regd_find_country(cc); | |
415 | if (country != NULL) | |
416 | return cc; | |
417 | } | |
418 | ||
f078f209 LR |
419 | return CTRY_DEFAULT; |
420 | } | |
421 | ||
5f8e077c LR |
422 | static struct reg_dmn_pair_mapping* |
423 | ath9k_get_regpair(int regdmn) | |
f078f209 LR |
424 | { |
425 | int i; | |
426 | ||
5f8e077c LR |
427 | if (regdmn == NO_ENUMRD) |
428 | return NULL; | |
f078f209 | 429 | for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) { |
5f8e077c LR |
430 | if (regDomainPairs[i].regDmnEnum == regdmn) |
431 | return ®DomainPairs[i]; | |
f078f209 | 432 | } |
5f8e077c | 433 | return NULL; |
f078f209 LR |
434 | } |
435 | ||
cbe61d8a | 436 | int ath9k_regd_init(struct ath_hw *ah) |
f078f209 | 437 | { |
f078f209 | 438 | struct country_code_to_enum_rd *country = NULL; |
e775aaf0 | 439 | u16 regdmn; |
f078f209 LR |
440 | |
441 | if (!ath9k_regd_is_eeprom_valid(ah)) { | |
442 | DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, | |
04bd4638 | 443 | "Invalid EEPROM contents\n"); |
5f8e077c | 444 | return -EINVAL; |
f078f209 LR |
445 | } |
446 | ||
e775aaf0 BC |
447 | regdmn = ath9k_regd_get_eepromRD(ah); |
448 | ah->regulatory.country_code = ath9k_regd_get_default_country(regdmn); | |
f078f209 | 449 | |
d6bad496 | 450 | if (ah->regulatory.country_code == CTRY_DEFAULT && |
e775aaf0 | 451 | regdmn == CTRY_DEFAULT) |
d6bad496 | 452 | ah->regulatory.country_code = CTRY_UNITED_STATES; |
f078f209 | 453 | |
d6bad496 | 454 | if (ah->regulatory.country_code == CTRY_DEFAULT) { |
f078f209 LR |
455 | country = NULL; |
456 | } else { | |
d6bad496 | 457 | country = ath9k_regd_find_country(ah->regulatory.country_code); |
f078f209 LR |
458 | if (country == NULL) { |
459 | DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, | |
460 | "Country is NULL!!!!, cc= %d\n", | |
d6bad496 | 461 | ah->regulatory.country_code); |
5f8e077c LR |
462 | return -EINVAL; |
463 | } else | |
f078f209 | 464 | regdmn = country->regDmnEnum; |
f078f209 LR |
465 | } |
466 | ||
d6bad496 | 467 | ah->regulatory.regpair = ath9k_get_regpair(regdmn); |
f078f209 | 468 | |
d6bad496 | 469 | if (!ah->regulatory.regpair) { |
5f8e077c LR |
470 | DPRINTF(ah->ah_sc, ATH_DBG_FATAL, |
471 | "No regulatory domain pair found, cannot continue\n"); | |
472 | return -EINVAL; | |
f078f209 | 473 | } |
f078f209 | 474 | |
5f8e077c LR |
475 | if (!country) |
476 | country = ath9k_regd_find_country_by_rd(regdmn); | |
f078f209 | 477 | |
5f8e077c | 478 | if (country) { |
d6bad496 S |
479 | ah->regulatory.alpha2[0] = country->isoName[0]; |
480 | ah->regulatory.alpha2[1] = country->isoName[1]; | |
f078f209 | 481 | } else { |
d6bad496 S |
482 | ah->regulatory.alpha2[0] = '0'; |
483 | ah->regulatory.alpha2[1] = '0'; | |
f078f209 LR |
484 | } |
485 | ||
f078f209 | 486 | DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, |
0c6666e4 | 487 | "Country alpha2 being used: %c%c\n" |
d6bad496 S |
488 | "Regulatory.Regpair detected: 0x%0x\n", |
489 | ah->regulatory.alpha2[0], ah->regulatory.alpha2[1], | |
490 | ah->regulatory.regpair->regDmnEnum); | |
f078f209 | 491 | |
5f8e077c | 492 | return 0; |
f078f209 LR |
493 | } |
494 | ||
cbe61d8a | 495 | u32 ath9k_regd_get_ctl(struct ath_hw *ah, struct ath9k_channel *chan) |
f078f209 LR |
496 | { |
497 | u32 ctl = NO_CTL; | |
f078f209 | 498 | |
d6bad496 | 499 | if (!ah->regulatory.regpair || |
d0f48f9d BC |
500 | (ah->regulatory.country_code == CTRY_DEFAULT && |
501 | is_wwr_sku(ath9k_regd_get_eepromRD(ah)))) { | |
f078f209 LR |
502 | if (IS_CHAN_B(chan)) |
503 | ctl = SD_NO_CTL | CTL_11B; | |
504 | else if (IS_CHAN_G(chan)) | |
505 | ctl = SD_NO_CTL | CTL_11G; | |
506 | else | |
507 | ctl = SD_NO_CTL | CTL_11A; | |
5f8e077c | 508 | return ctl; |
f078f209 | 509 | } |
f078f209 | 510 | |
5f8e077c | 511 | if (IS_CHAN_B(chan)) |
d6bad496 | 512 | ctl = ah->regulatory.regpair->reg_2ghz_ctl | CTL_11B; |
5f8e077c | 513 | else if (IS_CHAN_G(chan)) |
204b190c | 514 | ctl = ah->regulatory.regpair->reg_2ghz_ctl | CTL_11G; |
5f8e077c | 515 | else |
d6bad496 | 516 | ctl = ah->regulatory.regpair->reg_5ghz_ctl | CTL_11A; |
f078f209 | 517 | |
5f8e077c | 518 | return ctl; |
f078f209 | 519 | } |