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Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
[linux-btrfs-devel.git] / drivers / staging / brcm80211 / brcmsmac / channel.c
blobf59693e1d8a238704d6a08a28156c966d2305514
1 /*
2 * Copyright (c) 2010 Broadcom Corporation
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 ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #include <linux/types.h>
18 #include <net/mac80211.h>
19
20 #include <defs.h>
21 #include "pub.h"
22 #include "phy/phy_hal.h"
23 #include "bmac.h"
24 #include "main.h"
25 #include "stf.h"
26 #include "channel.h"
27
28 #define VALID_CHANNEL20_DB(wlc, val) brcms_c_valid_channel20_db((wlc)->cmi, val)
29 #define VALID_CHANNEL20_IN_BAND(wlc, bandunit, val) \
30 brcms_c_valid_channel20_in_band((wlc)->cmi, bandunit, val)
31 #define VALID_CHANNEL20(wlc, val) brcms_c_valid_channel20((wlc)->cmi, val)
32
33 struct brcms_cm_band {
34 u8 locale_flags; /* struct locale_info flags */
35 chanvec_t valid_channels; /* List of valid channels in the country */
36 const chanvec_t *restricted_channels; /* List of restricted use channels */
37 const chanvec_t *radar_channels; /* List of radar sensitive channels */
38 u8 PAD[8];
39 };
40
41 struct brcms_cm_info {
42 struct brcms_pub *pub;
43 struct brcms_c_info *wlc;
44 char srom_ccode[BRCM_CNTRY_BUF_SZ]; /* Country Code in SROM */
45 uint srom_regrev; /* Regulatory Rev for the SROM ccode */
46 const struct country_info *country; /* current country def */
47 char ccode[BRCM_CNTRY_BUF_SZ]; /* current internal Country Code */
48 uint regrev; /* current Regulatory Revision */
49 char country_abbrev[BRCM_CNTRY_BUF_SZ]; /* current advertised ccode */
50 /* per-band state (one per phy/radio) */
51 struct brcms_cm_band bandstate[MAXBANDS];
52 /* quiet channels currently for radar sensitivity or 11h support */
53 chanvec_t quiet_channels; /* channels on which we cannot transmit */
54 };
55
56 static int brcms_c_channels_init(struct brcms_cm_info *wlc_cm,
57 const struct country_info *country);
58 static void brcms_c_set_country_common(struct brcms_cm_info *wlc_cm,
59 const char *country_abbrev,
60 const char *ccode, uint regrev,
61 const struct country_info *country);
62 static int brcms_c_set_countrycode(struct brcms_cm_info *wlc_cm,
63 const char *ccode);
64 static int brcms_c_set_countrycode_rev(struct brcms_cm_info *wlc_cm,
65 const char *country_abbrev,
66 const char *ccode, int regrev);
67 static int brcms_c_country_aggregate_map(struct brcms_cm_info *wlc_cm,
68 const char *ccode,
69 char *mapped_ccode, uint *mapped_regrev);
70
71 static const struct country_info *
72 brcms_c_country_lookup_direct(const char *ccode, uint regrev);
73
74 static const struct country_info *
75 brcms_c_countrycode_map(struct brcms_cm_info *wlc_cm,
76 const char *ccode, char *mapped_ccode,
77 uint *mapped_regrev);
78
79 static void brcms_c_channels_commit(struct brcms_cm_info *wlc_cm);
80 static void brcms_c_quiet_channels_reset(struct brcms_cm_info *wlc_cm);
81 static bool brcms_c_quiet_chanspec(struct brcms_cm_info *wlc_cm,
82 chanspec_t chspec);
83 static bool brcms_c_valid_channel20_db(struct brcms_cm_info *wlc_cm, uint val);
84 static bool brcms_c_valid_channel20_in_band(struct brcms_cm_info *wlc_cm,
85 uint bandunit, uint val);
86 static bool brcms_c_valid_channel20(struct brcms_cm_info *wlc_cm, uint val);
87
88 static const struct country_info *
89 brcms_c_country_lookup(struct brcms_c_info *wlc, const char *ccode);
90
91 static void brcms_c_locale_get_channels(const struct locale_info *locale,
92 chanvec_t *valid_channels);
93 static const struct locale_info *brcms_c_get_locale_2g(u8 locale_idx);
94 static const struct locale_info *brcms_c_get_locale_5g(u8 locale_idx);
95 static bool brcms_c_japan(struct brcms_c_info *wlc);
96 static bool brcms_c_japan_ccode(const char *ccode);
97 static void brcms_c_channel_min_txpower_limits_with_local_constraint(
98 struct brcms_cm_info *wlc_cm, struct txpwr_limits *txpwr,
99 u8 local_constraint_qdbm);
100 static void brcms_c_locale_add_channels(chanvec_t *target,
101 const chanvec_t *channels);
102 static const struct locale_mimo_info *brcms_c_get_mimo_2g(u8 locale_idx);
103 static const struct locale_mimo_info *brcms_c_get_mimo_5g(u8 locale_idx);
104
105 /* QDB() macro takes a dB value and converts to a quarter dB value */
106 #ifdef QDB
107 #undef QDB
108 #endif
109 #define QDB(n) ((n) * BRCMS_TXPWR_DB_FACTOR)
110
111 /* Regulatory Matrix Spreadsheet (CLM) MIMO v3.7.9 */
112
113 /*
114 * Some common channel sets
115 */
116
117 /* No channels */
118 static const chanvec_t chanvec_none = {
119 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
120 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
121 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
122 0x00, 0x00, 0x00, 0x00}
123 };
124
125 /* All 2.4 GHz HW channels */
126 const chanvec_t chanvec_all_2G = {
127 {0xfe, 0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
128 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
129 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
130 0x00, 0x00, 0x00, 0x00}
131 };
132
133 /* All 5 GHz HW channels */
134 const chanvec_t chanvec_all_5G = {
135 {0x00, 0x00, 0x00, 0x00, 0x54, 0x55, 0x11, 0x11,
136 0x01, 0x00, 0x00, 0x00, 0x10, 0x11, 0x11, 0x11,
137 0x11, 0x11, 0x20, 0x22, 0x22, 0x00, 0x00, 0x11,
138 0x11, 0x11, 0x11, 0x01}
139 };
140
141 /*
142 * Radar channel sets
143 */
144
145 /* No radar */
146 #define radar_set_none chanvec_none
147
148 static const chanvec_t radar_set1 = { /* Channels 52 - 64, 100 - 140 */
149 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x11, /* 52 - 60 */
150 0x01, 0x00, 0x00, 0x00, 0x10, 0x11, 0x11, 0x11, /* 64, 100 - 124 */
151 0x11, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 128 - 140 */
152 0x00, 0x00, 0x00, 0x00}
153 };
154
155 /*
156 * Restricted channel sets
157 */
158
159 #define restricted_set_none chanvec_none
160
161 /* Channels 34, 38, 42, 46 */
162 static const chanvec_t restricted_set_japan_legacy = {
163 {0x00, 0x00, 0x00, 0x00, 0x44, 0x44, 0x00, 0x00,
164 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
165 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
166 0x00, 0x00, 0x00, 0x00}
167 };
168
169 /* Channels 12, 13 */
170 static const chanvec_t restricted_set_2g_short = {
171 {0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
172 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
173 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
174 0x00, 0x00, 0x00, 0x00}
175 };
176
177 /* Channel 165 */
178 static const chanvec_t restricted_chan_165 = {
179 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
180 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
181 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00,
182 0x00, 0x00, 0x00, 0x00}
183 };
184
185 /* Channels 36 - 48 & 149 - 165 */
186 static const chanvec_t restricted_low_hi = {
187 {0x00, 0x00, 0x00, 0x00, 0x10, 0x11, 0x01, 0x00,
188 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
189 0x00, 0x00, 0x20, 0x22, 0x22, 0x00, 0x00, 0x00,
190 0x00, 0x00, 0x00, 0x00}
191 };
192
193 /* Channels 12 - 14 */
194 static const chanvec_t restricted_set_12_13_14 = {
195 {0x00, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
196 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
197 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
198 0x00, 0x00, 0x00, 0x00}
199 };
200
201 #define LOCALE_CHAN_01_11 (1<<0)
202 #define LOCALE_CHAN_12_13 (1<<1)
203 #define LOCALE_CHAN_14 (1<<2)
204 #define LOCALE_SET_5G_LOW_JP1 (1<<3) /* 34-48, step 2 */
205 #define LOCALE_SET_5G_LOW_JP2 (1<<4) /* 34-46, step 4 */
206 #define LOCALE_SET_5G_LOW1 (1<<5) /* 36-48, step 4 */
207 #define LOCALE_SET_5G_LOW2 (1<<6) /* 52 */
208 #define LOCALE_SET_5G_LOW3 (1<<7) /* 56-64, step 4 */
209 #define LOCALE_SET_5G_MID1 (1<<8) /* 100-116, step 4 */
210 #define LOCALE_SET_5G_MID2 (1<<9) /* 120-124, step 4 */
211 #define LOCALE_SET_5G_MID3 (1<<10) /* 128 */
212 #define LOCALE_SET_5G_HIGH1 (1<<11) /* 132-140, step 4 */
213 #define LOCALE_SET_5G_HIGH2 (1<<12) /* 149-161, step 4 */
214 #define LOCALE_SET_5G_HIGH3 (1<<13) /* 165 */
215 #define LOCALE_CHAN_52_140_ALL (1<<14)
216 #define LOCALE_SET_5G_HIGH4 (1<<15) /* 184-216 */
217
218 #define LOCALE_CHAN_36_64 (LOCALE_SET_5G_LOW1 | LOCALE_SET_5G_LOW2 | LOCALE_SET_5G_LOW3)
219 #define LOCALE_CHAN_52_64 (LOCALE_SET_5G_LOW2 | LOCALE_SET_5G_LOW3)
220 #define LOCALE_CHAN_100_124 (LOCALE_SET_5G_MID1 | LOCALE_SET_5G_MID2)
221 #define LOCALE_CHAN_100_140 \
222 (LOCALE_SET_5G_MID1 | LOCALE_SET_5G_MID2 | LOCALE_SET_5G_MID3 | LOCALE_SET_5G_HIGH1)
223 #define LOCALE_CHAN_149_165 (LOCALE_SET_5G_HIGH2 | LOCALE_SET_5G_HIGH3)
224 #define LOCALE_CHAN_184_216 LOCALE_SET_5G_HIGH4
225
226 #define LOCALE_CHAN_01_14 (LOCALE_CHAN_01_11 | LOCALE_CHAN_12_13 | LOCALE_CHAN_14)
227
228 #define LOCALE_RADAR_SET_NONE 0
229 #define LOCALE_RADAR_SET_1 1
230
231 #define LOCALE_RESTRICTED_NONE 0
232 #define LOCALE_RESTRICTED_SET_2G_SHORT 1
233 #define LOCALE_RESTRICTED_CHAN_165 2
234 #define LOCALE_CHAN_ALL_5G 3
235 #define LOCALE_RESTRICTED_JAPAN_LEGACY 4
236 #define LOCALE_RESTRICTED_11D_2G 5
237 #define LOCALE_RESTRICTED_11D_5G 6
238 #define LOCALE_RESTRICTED_LOW_HI 7
239 #define LOCALE_RESTRICTED_12_13_14 8
240
241 /* global memory to provide working buffer for expanded locale */
242
243 static const chanvec_t *g_table_radar_set[] = {
244 &chanvec_none,
245 &radar_set1
246 };
247
248 static const chanvec_t *g_table_restricted_chan[] = {
249 &chanvec_none, /* restricted_set_none */
250 &restricted_set_2g_short,
251 &restricted_chan_165,
252 &chanvec_all_5G,
253 &restricted_set_japan_legacy,
254 &chanvec_all_2G, /* restricted_set_11d_2G */
255 &chanvec_all_5G, /* restricted_set_11d_5G */
256 &restricted_low_hi,
257 &restricted_set_12_13_14
258 };
259
260 static const chanvec_t locale_2g_01_11 = {
261 {0xfe, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
262 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
263 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
264 0x00, 0x00, 0x00, 0x00}
265 };
266
267 static const chanvec_t locale_2g_12_13 = {
268 {0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
269 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
270 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
271 0x00, 0x00, 0x00, 0x00}
272 };
273
274 static const chanvec_t locale_2g_14 = {
275 {0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
276 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
277 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
278 0x00, 0x00, 0x00, 0x00}
279 };
280
281 static const chanvec_t locale_5g_LOW_JP1 = {
282 {0x00, 0x00, 0x00, 0x00, 0x54, 0x55, 0x01, 0x00,
283 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
284 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
285 0x00, 0x00, 0x00, 0x00}
286 };
287
288 static const chanvec_t locale_5g_LOW_JP2 = {
289 {0x00, 0x00, 0x00, 0x00, 0x44, 0x44, 0x00, 0x00,
290 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
291 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
292 0x00, 0x00, 0x00, 0x00}
293 };
294
295 static const chanvec_t locale_5g_LOW1 = {
296 {0x00, 0x00, 0x00, 0x00, 0x10, 0x11, 0x01, 0x00,
297 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
298 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
299 0x00, 0x00, 0x00, 0x00}
300 };
301
302 static const chanvec_t locale_5g_LOW2 = {
303 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
304 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
305 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
306 0x00, 0x00, 0x00, 0x00}
307 };
308
309 static const chanvec_t locale_5g_LOW3 = {
310 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11,
311 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
312 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
313 0x00, 0x00, 0x00, 0x00}
314 };
315
316 static const chanvec_t locale_5g_MID1 = {
317 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
318 0x00, 0x00, 0x00, 0x00, 0x10, 0x11, 0x11, 0x00,
319 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
320 0x00, 0x00, 0x00, 0x00}
321 };
322
323 static const chanvec_t locale_5g_MID2 = {
324 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
325 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11,
326 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
327 0x00, 0x00, 0x00, 0x00}
328 };
329
330 static const chanvec_t locale_5g_MID3 = {
331 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
332 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
333 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
334 0x00, 0x00, 0x00, 0x00}
335 };
336
337 static const chanvec_t locale_5g_HIGH1 = {
338 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
339 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
340 0x10, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
341 0x00, 0x00, 0x00, 0x00}
342 };
343
344 static const chanvec_t locale_5g_HIGH2 = {
345 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
346 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
347 0x00, 0x00, 0x20, 0x22, 0x02, 0x00, 0x00, 0x00,
348 0x00, 0x00, 0x00, 0x00}
349 };
350
351 static const chanvec_t locale_5g_HIGH3 = {
352 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
353 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
354 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00,
355 0x00, 0x00, 0x00, 0x00}
356 };
357
358 static const chanvec_t locale_5g_52_140_ALL = {
359 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x11,
360 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11,
361 0x11, 0x11, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00,
362 0x00, 0x00, 0x00, 0x00}
363 };
364
365 static const chanvec_t locale_5g_HIGH4 = {
366 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
367 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
368 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11,
369 0x11, 0x11, 0x11, 0x11}
370 };
371
372 static const chanvec_t *g_table_locale_base[] = {
373 &locale_2g_01_11,
374 &locale_2g_12_13,
375 &locale_2g_14,
376 &locale_5g_LOW_JP1,
377 &locale_5g_LOW_JP2,
378 &locale_5g_LOW1,
379 &locale_5g_LOW2,
380 &locale_5g_LOW3,
381 &locale_5g_MID1,
382 &locale_5g_MID2,
383 &locale_5g_MID3,
384 &locale_5g_HIGH1,
385 &locale_5g_HIGH2,
386 &locale_5g_HIGH3,
387 &locale_5g_52_140_ALL,
388 &locale_5g_HIGH4
389 };
390
391 static void brcms_c_locale_add_channels(chanvec_t *target,
392 const chanvec_t *channels)
393 {
394 u8 i;
395 for (i = 0; i < sizeof(chanvec_t); i++) {
396 target->vec[i] |= channels->vec[i];
397 }
398 }
399
400 static void brcms_c_locale_get_channels(const struct locale_info *locale,
401 chanvec_t *channels)
402 {
403 u8 i;
404
405 memset(channels, 0, sizeof(chanvec_t));
406
407 for (i = 0; i < ARRAY_SIZE(g_table_locale_base); i++) {
408 if (locale->valid_channels & (1 << i)) {
409 brcms_c_locale_add_channels(channels,
410 g_table_locale_base[i]);
411 }
412 }
413 }
414
415 /*
416 * Locale Definitions - 2.4 GHz
417 */
418 static const struct locale_info locale_i = { /* locale i. channel 1 - 13 */
419 LOCALE_CHAN_01_11 | LOCALE_CHAN_12_13,
420 LOCALE_RADAR_SET_NONE,
421 LOCALE_RESTRICTED_SET_2G_SHORT,
422 {QDB(19), QDB(19), QDB(19),
423 QDB(19), QDB(19), QDB(19)},
424 {20, 20, 20, 0},
425 BRCMS_EIRP
426 };
427
428 /*
429 * Locale Definitions - 5 GHz
430 */
431 static const struct locale_info locale_11 = {
432 /* locale 11. channel 36 - 48, 52 - 64, 100 - 140, 149 - 165 */
433 LOCALE_CHAN_36_64 | LOCALE_CHAN_100_140 | LOCALE_CHAN_149_165,
434 LOCALE_RADAR_SET_1,
435 LOCALE_RESTRICTED_NONE,
436 {QDB(21), QDB(21), QDB(21), QDB(21), QDB(21)},
437 {23, 23, 23, 30, 30},
438 BRCMS_EIRP | BRCMS_DFS_EU
439 };
440
441 #define LOCALE_2G_IDX_i 0
442 static const struct locale_info *g_locale_2g_table[] = {
443 &locale_i
444 };
445
446 #define LOCALE_5G_IDX_11 0
447 static const struct locale_info *g_locale_5g_table[] = {
448 &locale_11
449 };
450
451 /*
452 * MIMO Locale Definitions - 2.4 GHz
453 */
454 static const struct locale_mimo_info locale_bn = {
455 {QDB(13), QDB(13), QDB(13), QDB(13), QDB(13),
456 QDB(13), QDB(13), QDB(13), QDB(13), QDB(13),
457 QDB(13), QDB(13), QDB(13)},
458 {0, 0, QDB(13), QDB(13), QDB(13),
459 QDB(13), QDB(13), QDB(13), QDB(13), QDB(13),
460 QDB(13), 0, 0},
461 0
462 };
463
464 /* locale mimo 2g indexes */
465 #define LOCALE_MIMO_IDX_bn 0
466
467 static const struct locale_mimo_info *g_mimo_2g_table[] = {
468 &locale_bn
469 };
470
471 /*
472 * MIMO Locale Definitions - 5 GHz
473 */
474 static const struct locale_mimo_info locale_11n = {
475 { /* 12.5 dBm */ 50, 50, 50, QDB(15), QDB(15)},
476 {QDB(14), QDB(15), QDB(15), QDB(15), QDB(15)},
477 0
478 };
479
480 #define LOCALE_MIMO_IDX_11n 0
481 static const struct locale_mimo_info *g_mimo_5g_table[] = {
482 &locale_11n
483 };
484
485 #ifdef LC
486 #undef LC
487 #endif
488 #define LC(id) LOCALE_MIMO_IDX_ ## id
489
490 #ifdef LC_2G
491 #undef LC_2G
492 #endif
493 #define LC_2G(id) LOCALE_2G_IDX_ ## id
494
495 #ifdef LC_5G
496 #undef LC_5G
497 #endif
498 #define LC_5G(id) LOCALE_5G_IDX_ ## id
499
500 #define LOCALES(band2, band5, mimo2, mimo5) {LC_2G(band2), LC_5G(band5), LC(mimo2), LC(mimo5)}
501
502 static const struct {
503 char abbrev[BRCM_CNTRY_BUF_SZ]; /* country abbreviation */
504 struct country_info country;
505 } cntry_locales[] = {
506 {
507 "X2", LOCALES(i, 11, bn, 11n)}, /* Worldwide RoW 2 */
508 };
509
510 #ifdef SUPPORT_40MHZ
511 /* 20MHz channel info for 40MHz pairing support */
512 struct chan20_info {
513 u8 sb;
514 u8 adj_sbs;
515 };
516
517 /* indicates adjacent channels that are allowed for a 40 Mhz channel and
518 * those that permitted by the HT
519 */
520 struct chan20_info chan20_info[] = {
521 /* 11b/11g */
522 /* 0 */ {1, (CH_UPPER_SB | CH_EWA_VALID)},
523 /* 1 */ {2, (CH_UPPER_SB | CH_EWA_VALID)},
524 /* 2 */ {3, (CH_UPPER_SB | CH_EWA_VALID)},
525 /* 3 */ {4, (CH_UPPER_SB | CH_EWA_VALID)},
526 /* 4 */ {5, (CH_UPPER_SB | CH_LOWER_SB | CH_EWA_VALID)},
527 /* 5 */ {6, (CH_UPPER_SB | CH_LOWER_SB | CH_EWA_VALID)},
528 /* 6 */ {7, (CH_UPPER_SB | CH_LOWER_SB | CH_EWA_VALID)},
529 /* 7 */ {8, (CH_UPPER_SB | CH_LOWER_SB | CH_EWA_VALID)},
530 /* 8 */ {9, (CH_UPPER_SB | CH_LOWER_SB | CH_EWA_VALID)},
531 /* 9 */ {10, (CH_LOWER_SB | CH_EWA_VALID)},
532 /* 10 */ {11, (CH_LOWER_SB | CH_EWA_VALID)},
533 /* 11 */ {12, (CH_LOWER_SB)},
534 /* 12 */ {13, (CH_LOWER_SB)},
535 /* 13 */ {14, (CH_LOWER_SB)},
536
537 /* 11a japan high */
538 /* 14 */ {34, (CH_UPPER_SB)},
539 /* 15 */ {38, (CH_LOWER_SB)},
540 /* 16 */ {42, (CH_LOWER_SB)},
541 /* 17 */ {46, (CH_LOWER_SB)},
542
543 /* 11a usa low */
544 /* 18 */ {36, (CH_UPPER_SB | CH_EWA_VALID)},
545 /* 19 */ {40, (CH_LOWER_SB | CH_EWA_VALID)},
546 /* 20 */ {44, (CH_UPPER_SB | CH_EWA_VALID)},
547 /* 21 */ {48, (CH_LOWER_SB | CH_EWA_VALID)},
548 /* 22 */ {52, (CH_UPPER_SB | CH_EWA_VALID)},
549 /* 23 */ {56, (CH_LOWER_SB | CH_EWA_VALID)},
550 /* 24 */ {60, (CH_UPPER_SB | CH_EWA_VALID)},
551 /* 25 */ {64, (CH_LOWER_SB | CH_EWA_VALID)},
552
553 /* 11a Europe */
554 /* 26 */ {100, (CH_UPPER_SB | CH_EWA_VALID)},
555 /* 27 */ {104, (CH_LOWER_SB | CH_EWA_VALID)},
556 /* 28 */ {108, (CH_UPPER_SB | CH_EWA_VALID)},
557 /* 29 */ {112, (CH_LOWER_SB | CH_EWA_VALID)},
558 /* 30 */ {116, (CH_UPPER_SB | CH_EWA_VALID)},
559 /* 31 */ {120, (CH_LOWER_SB | CH_EWA_VALID)},
560 /* 32 */ {124, (CH_UPPER_SB | CH_EWA_VALID)},
561 /* 33 */ {128, (CH_LOWER_SB | CH_EWA_VALID)},
562 /* 34 */ {132, (CH_UPPER_SB | CH_EWA_VALID)},
563 /* 35 */ {136, (CH_LOWER_SB | CH_EWA_VALID)},
564 /* 36 */ {140, (CH_LOWER_SB)},
565
566 /* 11a usa high, ref5 only */
567 /* The 0x80 bit in pdiv means these are REF5, other entries are REF20 */
568 /* 37 */ {149, (CH_UPPER_SB | CH_EWA_VALID)},
569 /* 38 */ {153, (CH_LOWER_SB | CH_EWA_VALID)},
570 /* 39 */ {157, (CH_UPPER_SB | CH_EWA_VALID)},
571 /* 40 */ {161, (CH_LOWER_SB | CH_EWA_VALID)},
572 /* 41 */ {165, (CH_LOWER_SB)},
573
574 /* 11a japan */
575 /* 42 */ {184, (CH_UPPER_SB)},
576 /* 43 */ {188, (CH_LOWER_SB)},
577 /* 44 */ {192, (CH_UPPER_SB)},
578 /* 45 */ {196, (CH_LOWER_SB)},
579 /* 46 */ {200, (CH_UPPER_SB)},
580 /* 47 */ {204, (CH_LOWER_SB)},
581 /* 48 */ {208, (CH_UPPER_SB)},
582 /* 49 */ {212, (CH_LOWER_SB)},
583 /* 50 */ {216, (CH_LOWER_SB)}
584 };
585 #endif /* SUPPORT_40MHZ */
586
587 static const struct locale_info *brcms_c_get_locale_2g(u8 locale_idx)
588 {
589 if (locale_idx >= ARRAY_SIZE(g_locale_2g_table)) {
590 return NULL; /* error condition */
591 }
592 return g_locale_2g_table[locale_idx];
593 }
594
595 static const struct locale_info *brcms_c_get_locale_5g(u8 locale_idx)
596 {
597 if (locale_idx >= ARRAY_SIZE(g_locale_5g_table)) {
598 return NULL; /* error condition */
599 }
600 return g_locale_5g_table[locale_idx];
601 }
602
603 static const struct locale_mimo_info *brcms_c_get_mimo_2g(u8 locale_idx)
604 {
605 if (locale_idx >= ARRAY_SIZE(g_mimo_2g_table)) {
606 return NULL;
607 }
608 return g_mimo_2g_table[locale_idx];
609 }
610
611 static const struct locale_mimo_info *brcms_c_get_mimo_5g(u8 locale_idx)
612 {
613 if (locale_idx >= ARRAY_SIZE(g_mimo_5g_table)) {
614 return NULL;
615 }
616 return g_mimo_5g_table[locale_idx];
617 }
618
619 struct brcms_cm_info *brcms_c_channel_mgr_attach(struct brcms_c_info *wlc)
620 {
621 struct brcms_cm_info *wlc_cm;
622 char country_abbrev[BRCM_CNTRY_BUF_SZ];
623 const struct country_info *country;
624 struct brcms_pub *pub = wlc->pub;
625 char *ccode;
626
627 BCMMSG(wlc->wiphy, "wl%d\n", wlc->pub->unit);
628
629 wlc_cm = kzalloc(sizeof(struct brcms_cm_info), GFP_ATOMIC);
630 if (wlc_cm == NULL) {
631 wiphy_err(wlc->wiphy, "wl%d: %s: out of memory", pub->unit,
632 __func__);
633 return NULL;
634 }
635 wlc_cm->pub = pub;
636 wlc_cm->wlc = wlc;
637 wlc->cmi = wlc_cm;
638
639 /* store the country code for passing up as a regulatory hint */
640 ccode = getvar(wlc->pub->vars, "ccode");
641 if (ccode) {
642 strncpy(wlc->pub->srom_ccode, ccode, BRCM_CNTRY_BUF_SZ - 1);
643 }
644
645 /* internal country information which must match regulatory constraints in firmware */
646 memset(country_abbrev, 0, BRCM_CNTRY_BUF_SZ);
647 strncpy(country_abbrev, "X2", sizeof(country_abbrev) - 1);
648 country = brcms_c_country_lookup(wlc, country_abbrev);
649
650 /* save default country for exiting 11d regulatory mode */
651 strncpy(wlc->country_default, country_abbrev, BRCM_CNTRY_BUF_SZ - 1);
652
653 /* initialize autocountry_default to driver default */
654 strncpy(wlc->autocountry_default, "X2", BRCM_CNTRY_BUF_SZ - 1);
655
656 brcms_c_set_countrycode(wlc_cm, country_abbrev);
657
658 return wlc_cm;
659 }
660
661 void brcms_c_channel_mgr_detach(struct brcms_cm_info *wlc_cm)
662 {
663 kfree(wlc_cm);
664 }
665
666 u8
667 brcms_c_channel_locale_flags_in_band(struct brcms_cm_info *wlc_cm,
668 uint bandunit)
669 {
670 return wlc_cm->bandstate[bandunit].locale_flags;
671 }
672
673 /* set the driver's current country and regulatory information using a country code
674 * as the source. Lookup built in country information found with the country code.
675 */
676 static int
677 brcms_c_set_countrycode(struct brcms_cm_info *wlc_cm, const char *ccode)
678 {
679 char country_abbrev[BRCM_CNTRY_BUF_SZ];
680 strncpy(country_abbrev, ccode, BRCM_CNTRY_BUF_SZ);
681 return brcms_c_set_countrycode_rev(wlc_cm, country_abbrev, ccode, -1);
682 }
683
684 static int
685 brcms_c_set_countrycode_rev(struct brcms_cm_info *wlc_cm,
686 const char *country_abbrev,
687 const char *ccode, int regrev)
688 {
689 const struct country_info *country;
690 char mapped_ccode[BRCM_CNTRY_BUF_SZ];
691 uint mapped_regrev;
692
693 /* if regrev is -1, lookup the mapped country code,
694 * otherwise use the ccode and regrev directly
695 */
696 if (regrev == -1) {
697 /* map the country code to a built-in country code, regrev, and country_info */
698 country =
699 brcms_c_countrycode_map(wlc_cm, ccode, mapped_ccode,
700 &mapped_regrev);
701 } else {
702 /* find the matching built-in country definition */
703 country = brcms_c_country_lookup_direct(ccode, regrev);
704 strncpy(mapped_ccode, ccode, BRCM_CNTRY_BUF_SZ);
705 mapped_regrev = regrev;
706 }
707
708 if (country == NULL)
709 return -EINVAL;
710
711 /* set the driver state for the country */
712 brcms_c_set_country_common(wlc_cm, country_abbrev, mapped_ccode,
713 mapped_regrev, country);
714
715 return 0;
716 }
717
718 /* set the driver's current country and regulatory information using a country code
719 * as the source. Look up built in country information found with the country code.
720 */
721 static void
722 brcms_c_set_country_common(struct brcms_cm_info *wlc_cm,
723 const char *country_abbrev,
724 const char *ccode, uint regrev,
725 const struct country_info *country)
726 {
727 const struct locale_mimo_info *li_mimo;
728 const struct locale_info *locale;
729 struct brcms_c_info *wlc = wlc_cm->wlc;
730 char prev_country_abbrev[BRCM_CNTRY_BUF_SZ];
731
732 /* save current country state */
733 wlc_cm->country = country;
734
735 memset(&prev_country_abbrev, 0, BRCM_CNTRY_BUF_SZ);
736 strncpy(prev_country_abbrev, wlc_cm->country_abbrev,
737 BRCM_CNTRY_BUF_SZ - 1);
738
739 strncpy(wlc_cm->country_abbrev, country_abbrev, BRCM_CNTRY_BUF_SZ - 1);
740 strncpy(wlc_cm->ccode, ccode, BRCM_CNTRY_BUF_SZ - 1);
741 wlc_cm->regrev = regrev;
742
743 /* disable/restore nmode based on country regulations */
744 li_mimo = brcms_c_get_mimo_2g(country->locale_mimo_2G);
745 if (li_mimo && (li_mimo->flags & BRCMS_NO_MIMO)) {
746 brcms_c_set_nmode(wlc, OFF);
747 wlc->stf->no_cddstbc = true;
748 } else {
749 wlc->stf->no_cddstbc = false;
750 if (N_ENAB(wlc->pub) != wlc->protection->nmode_user)
751 brcms_c_set_nmode(wlc, wlc->protection->nmode_user);
752 }
753
754 brcms_c_stf_ss_update(wlc, wlc->bandstate[BAND_2G_INDEX]);
755 brcms_c_stf_ss_update(wlc, wlc->bandstate[BAND_5G_INDEX]);
756 /* set or restore gmode as required by regulatory */
757 locale = brcms_c_get_locale_2g(country->locale_2G);
758 if (locale && (locale->flags & BRCMS_NO_OFDM)) {
759 brcms_c_set_gmode(wlc, GMODE_LEGACY_B, false);
760 } else {
761 brcms_c_set_gmode(wlc, wlc->protection->gmode_user, false);
762 }
763
764 brcms_c_channels_init(wlc_cm, country);
765
766 return;
767 }
768
769 /* Lookup a country info structure from a null terminated country code
770 * The lookup is case sensitive.
771 */
772 static const struct country_info *
773 brcms_c_country_lookup(struct brcms_c_info *wlc, const char *ccode)
774 {
775 const struct country_info *country;
776 char mapped_ccode[BRCM_CNTRY_BUF_SZ];
777 uint mapped_regrev;
778
779 /* map the country code to a built-in country code, regrev, and country_info struct */
780 country = brcms_c_countrycode_map(wlc->cmi, ccode, mapped_ccode,
781 &mapped_regrev);
782
783 return country;
784 }
785
786 static const struct country_info *
787 brcms_c_countrycode_map(struct brcms_cm_info *wlc_cm, const char *ccode,
788 char *mapped_ccode, uint *mapped_regrev)
789 {
790 struct brcms_c_info *wlc = wlc_cm->wlc;
791 const struct country_info *country;
792 uint srom_regrev = wlc_cm->srom_regrev;
793 const char *srom_ccode = wlc_cm->srom_ccode;
794 int mapped;
795
796 /* check for currently supported ccode size */
797 if (strlen(ccode) > (BRCM_CNTRY_BUF_SZ - 1)) {
798 wiphy_err(wlc->wiphy, "wl%d: %s: ccode \"%s\" too long for "
799 "match\n", wlc->pub->unit, __func__, ccode);
800 return NULL;
801 }
802
803 /* default mapping is the given ccode and regrev 0 */
804 strncpy(mapped_ccode, ccode, BRCM_CNTRY_BUF_SZ);
805 *mapped_regrev = 0;
806
807 /* If the desired country code matches the srom country code,
808 * then the mapped country is the srom regulatory rev.
809 * Otherwise look for an aggregate mapping.
810 */
811 if (!strcmp(srom_ccode, ccode)) {
812 *mapped_regrev = srom_regrev;
813 mapped = 0;
814 wiphy_err(wlc->wiphy, "srom_code == ccode %s\n", __func__);
815 } else {
816 mapped =
817 brcms_c_country_aggregate_map(wlc_cm, ccode, mapped_ccode,
818 mapped_regrev);
819 }
820
821 /* find the matching built-in country definition */
822 country = brcms_c_country_lookup_direct(mapped_ccode, *mapped_regrev);
823
824 /* if there is not an exact rev match, default to rev zero */
825 if (country == NULL && *mapped_regrev != 0) {
826 *mapped_regrev = 0;
827 country =
828 brcms_c_country_lookup_direct(mapped_ccode, *mapped_regrev);
829 }
830
831 return country;
832 }
833
834 static int
835 brcms_c_country_aggregate_map(struct brcms_cm_info *wlc_cm, const char *ccode,
836 char *mapped_ccode, uint *mapped_regrev)
837 {
838 return false;
839 }
840
841 /* Lookup a country info structure from a null terminated country
842 * abbreviation and regrev directly with no translation.
843 */
844 static const struct country_info *
845 brcms_c_country_lookup_direct(const char *ccode, uint regrev)
846 {
847 uint size, i;
848
849 /* Should just return 0 for single locale driver. */
850 /* Keep it this way in case we add more locales. (for now anyway) */
851
852 /* all other country def arrays are for regrev == 0, so if regrev is non-zero, fail */
853 if (regrev > 0)
854 return NULL;
855
856 /* find matched table entry from country code */
857 size = ARRAY_SIZE(cntry_locales);
858 for (i = 0; i < size; i++) {
859 if (strcmp(ccode, cntry_locales[i].abbrev) == 0) {
860 return &cntry_locales[i].country;
861 }
862 }
863 return NULL;
864 }
865
866 static int
867 brcms_c_channels_init(struct brcms_cm_info *wlc_cm,
868 const struct country_info *country)
869 {
870 struct brcms_c_info *wlc = wlc_cm->wlc;
871 uint i, j;
872 struct brcms_band *band;
873 const struct locale_info *li;
874 chanvec_t sup_chan;
875 const struct locale_mimo_info *li_mimo;
876
877 band = wlc->band;
878 for (i = 0; i < NBANDS(wlc);
879 i++, band = wlc->bandstate[OTHERBANDUNIT(wlc)]) {
880
881 li = BAND_5G(band->bandtype) ?
882 brcms_c_get_locale_5g(country->locale_5G) :
883 brcms_c_get_locale_2g(country->locale_2G);
884 wlc_cm->bandstate[band->bandunit].locale_flags = li->flags;
885 li_mimo = BAND_5G(band->bandtype) ?
886 brcms_c_get_mimo_5g(country->locale_mimo_5G) :
887 brcms_c_get_mimo_2g(country->locale_mimo_2G);
888
889 /* merge the mimo non-mimo locale flags */
890 wlc_cm->bandstate[band->bandunit].locale_flags |=
891 li_mimo->flags;
892
893 wlc_cm->bandstate[band->bandunit].restricted_channels =
894 g_table_restricted_chan[li->restricted_channels];
895 wlc_cm->bandstate[band->bandunit].radar_channels =
896 g_table_radar_set[li->radar_channels];
897
898 /* set the channel availability,
899 * masking out the channels that may not be supported on this phy
900 */
901 wlc_phy_chanspec_band_validch(band->pi, band->bandtype,
902 &sup_chan);
903 brcms_c_locale_get_channels(li,
904 &wlc_cm->bandstate[band->bandunit].
905 valid_channels);
906 for (j = 0; j < sizeof(chanvec_t); j++)
907 wlc_cm->bandstate[band->bandunit].valid_channels.
908 vec[j] &= sup_chan.vec[j];
909 }
910
911 brcms_c_quiet_channels_reset(wlc_cm);
912 brcms_c_channels_commit(wlc_cm);
913
914 return 0;
915 }
916
917 /* Update the radio state (enable/disable) and tx power targets
918 * based on a new set of channel/regulatory information
919 */
920 static void brcms_c_channels_commit(struct brcms_cm_info *wlc_cm)
921 {
922 struct brcms_c_info *wlc = wlc_cm->wlc;
923 uint chan;
924 struct txpwr_limits txpwr;
925
926 /* search for the existence of any valid channel */
927 for (chan = 0; chan < MAXCHANNEL; chan++) {
928 if (VALID_CHANNEL20_DB(wlc, chan)) {
929 break;
930 }
931 }
932 if (chan == MAXCHANNEL)
933 chan = INVCHANNEL;
934
935 /* based on the channel search above, set or clear WL_RADIO_COUNTRY_DISABLE */
936 if (chan == INVCHANNEL) {
937 /* country/locale with no valid channels, set the radio disable bit */
938 mboolset(wlc->pub->radio_disabled, WL_RADIO_COUNTRY_DISABLE);
939 wiphy_err(wlc->wiphy, "wl%d: %s: no valid channel for \"%s\" "
940 "nbands %d bandlocked %d\n", wlc->pub->unit,
941 __func__, wlc_cm->country_abbrev, NBANDS(wlc),
942 wlc->bandlocked);
943 } else
944 if (mboolisset(wlc->pub->radio_disabled,
945 WL_RADIO_COUNTRY_DISABLE)) {
946 /* country/locale with valid channel, clear the radio disable bit */
947 mboolclr(wlc->pub->radio_disabled, WL_RADIO_COUNTRY_DISABLE);
948 }
949
950 /* Now that the country abbreviation is set, if the radio supports 2G, then
951 * set channel 14 restrictions based on the new locale.
952 */
953 if (NBANDS(wlc) > 1 || BAND_2G(wlc->band->bandtype)) {
954 wlc_phy_chanspec_ch14_widefilter_set(wlc->band->pi,
955 brcms_c_japan(wlc) ? true :
956 false);
957 }
958
959 if (wlc->pub->up && chan != INVCHANNEL) {
960 brcms_c_channel_reg_limits(wlc_cm, wlc->chanspec, &txpwr);
961 brcms_c_channel_min_txpower_limits_with_local_constraint(wlc_cm,
962 &txpwr, BRCMS_TXPWR_MAX);
963 wlc_phy_txpower_limit_set(wlc->band->pi, &txpwr, wlc->chanspec);
964 }
965 }
966
967 /* reset the quiet channels vector to the union of the restricted and radar channel sets */
968 static void brcms_c_quiet_channels_reset(struct brcms_cm_info *wlc_cm)
969 {
970 struct brcms_c_info *wlc = wlc_cm->wlc;
971 uint i, j;
972 struct brcms_band *band;
973 const chanvec_t *chanvec;
974
975 memset(&wlc_cm->quiet_channels, 0, sizeof(chanvec_t));
976
977 band = wlc->band;
978 for (i = 0; i < NBANDS(wlc);
979 i++, band = wlc->bandstate[OTHERBANDUNIT(wlc)]) {
980
981 /* initialize quiet channels for restricted channels */
982 chanvec = wlc_cm->bandstate[band->bandunit].restricted_channels;
983 for (j = 0; j < sizeof(chanvec_t); j++)
984 wlc_cm->quiet_channels.vec[j] |= chanvec->vec[j];
985
986 }
987 }
988
989 static bool
990 brcms_c_quiet_chanspec(struct brcms_cm_info *wlc_cm, chanspec_t chspec)
991 {
992 return N_ENAB(wlc_cm->wlc->pub) && CHSPEC_IS40(chspec) ?
993 (isset
994 (wlc_cm->quiet_channels.vec,
995 LOWER_20_SB(CHSPEC_CHANNEL(chspec)))
996 || isset(wlc_cm->quiet_channels.vec,
997 UPPER_20_SB(CHSPEC_CHANNEL(chspec)))) : isset(wlc_cm->
998 quiet_channels.
999 vec,
1000 CHSPEC_CHANNEL
1001 (chspec));
1002 }
1003
1004 /* Is the channel valid for the current locale? (but don't consider channels not
1005 * available due to bandlocking)
1006 */
1007 static bool brcms_c_valid_channel20_db(struct brcms_cm_info *wlc_cm, uint val)
1008 {
1009 struct brcms_c_info *wlc = wlc_cm->wlc;
1010
1011 return VALID_CHANNEL20(wlc, val) ||
1012 (!wlc->bandlocked
1013 && VALID_CHANNEL20_IN_BAND(wlc, OTHERBANDUNIT(wlc), val));
1014 }
1015
1016 /* Is the channel valid for the current locale and specified band? */
1017 static bool brcms_c_valid_channel20_in_band(struct brcms_cm_info *wlc_cm,
1018 uint bandunit, uint val)
1019 {
1020 return ((val < MAXCHANNEL)
1021 && isset(wlc_cm->bandstate[bandunit].valid_channels.vec, val));
1022 }
1023
1024 /* Is the channel valid for the current locale and current band? */
1025 static bool brcms_c_valid_channel20(struct brcms_cm_info *wlc_cm, uint val)
1026 {
1027 struct brcms_c_info *wlc = wlc_cm->wlc;
1028
1029 return ((val < MAXCHANNEL) &&
1030 isset(wlc_cm->bandstate[wlc->band->bandunit].valid_channels.vec,
1031 val));
1032 }
1033
1034 static void
1035 brcms_c_channel_min_txpower_limits_with_local_constraint(
1036 struct brcms_cm_info *wlc_cm, struct txpwr_limits *txpwr,
1037 u8 local_constraint_qdbm)
1038 {
1039 int j;
1040
1041 /* CCK Rates */
1042 for (j = 0; j < WL_TX_POWER_CCK_NUM; j++) {
1043 txpwr->cck[j] = min(txpwr->cck[j], local_constraint_qdbm);
1044 }
1045
1046 /* 20 MHz Legacy OFDM SISO */
1047 for (j = 0; j < WL_TX_POWER_OFDM_NUM; j++) {
1048 txpwr->ofdm[j] = min(txpwr->ofdm[j], local_constraint_qdbm);
1049 }
1050
1051 /* 20 MHz Legacy OFDM CDD */
1052 for (j = 0; j < BRCMS_NUM_RATES_OFDM; j++) {
1053 txpwr->ofdm_cdd[j] =
1054 min(txpwr->ofdm_cdd[j], local_constraint_qdbm);
1055 }
1056
1057 /* 40 MHz Legacy OFDM SISO */
1058 for (j = 0; j < BRCMS_NUM_RATES_OFDM; j++) {
1059 txpwr->ofdm_40_siso[j] =
1060 min(txpwr->ofdm_40_siso[j], local_constraint_qdbm);
1061 }
1062
1063 /* 40 MHz Legacy OFDM CDD */
1064 for (j = 0; j < BRCMS_NUM_RATES_OFDM; j++) {
1065 txpwr->ofdm_40_cdd[j] =
1066 min(txpwr->ofdm_40_cdd[j], local_constraint_qdbm);
1067 }
1068
1069 /* 20MHz MCS 0-7 SISO */
1070 for (j = 0; j < BRCMS_NUM_RATES_MCS_1_STREAM; j++) {
1071 txpwr->mcs_20_siso[j] =
1072 min(txpwr->mcs_20_siso[j], local_constraint_qdbm);
1073 }
1074
1075 /* 20MHz MCS 0-7 CDD */
1076 for (j = 0; j < BRCMS_NUM_RATES_MCS_1_STREAM; j++) {
1077 txpwr->mcs_20_cdd[j] =
1078 min(txpwr->mcs_20_cdd[j], local_constraint_qdbm);
1079 }
1080
1081 /* 20MHz MCS 0-7 STBC */
1082 for (j = 0; j < BRCMS_NUM_RATES_MCS_1_STREAM; j++) {
1083 txpwr->mcs_20_stbc[j] =
1084 min(txpwr->mcs_20_stbc[j], local_constraint_qdbm);
1085 }
1086
1087 /* 20MHz MCS 8-15 MIMO */
1088 for (j = 0; j < BRCMS_NUM_RATES_MCS_2_STREAM; j++)
1089 txpwr->mcs_20_mimo[j] =
1090 min(txpwr->mcs_20_mimo[j], local_constraint_qdbm);
1091
1092 /* 40MHz MCS 0-7 SISO */
1093 for (j = 0; j < BRCMS_NUM_RATES_MCS_1_STREAM; j++) {
1094 txpwr->mcs_40_siso[j] =
1095 min(txpwr->mcs_40_siso[j], local_constraint_qdbm);
1096 }
1097
1098 /* 40MHz MCS 0-7 CDD */
1099 for (j = 0; j < BRCMS_NUM_RATES_MCS_1_STREAM; j++) {
1100 txpwr->mcs_40_cdd[j] =
1101 min(txpwr->mcs_40_cdd[j], local_constraint_qdbm);
1102 }
1103
1104 /* 40MHz MCS 0-7 STBC */
1105 for (j = 0; j < BRCMS_NUM_RATES_MCS_1_STREAM; j++) {
1106 txpwr->mcs_40_stbc[j] =
1107 min(txpwr->mcs_40_stbc[j], local_constraint_qdbm);
1108 }
1109
1110 /* 40MHz MCS 8-15 MIMO */
1111 for (j = 0; j < BRCMS_NUM_RATES_MCS_2_STREAM; j++)
1112 txpwr->mcs_40_mimo[j] =
1113 min(txpwr->mcs_40_mimo[j], local_constraint_qdbm);
1114
1115 /* 40MHz MCS 32 */
1116 txpwr->mcs32 = min(txpwr->mcs32, local_constraint_qdbm);
1117
1118 }
1119
1120 void
1121 brcms_c_channel_set_chanspec(struct brcms_cm_info *wlc_cm, chanspec_t chanspec,
1122 u8 local_constraint_qdbm)
1123 {
1124 struct brcms_c_info *wlc = wlc_cm->wlc;
1125 struct txpwr_limits txpwr;
1126
1127 brcms_c_channel_reg_limits(wlc_cm, chanspec, &txpwr);
1128
1129 brcms_c_channel_min_txpower_limits_with_local_constraint(wlc_cm, &txpwr,
1130 local_constraint_qdbm);
1131
1132 brcms_b_set_chanspec(wlc->hw, chanspec,
1133 (brcms_c_quiet_chanspec(wlc_cm, chanspec) != 0),
1134 &txpwr);
1135 }
1136
1137 #ifdef POWER_DBG
1138 static void wlc_phy_txpower_limits_dump(struct txpwr_limits *txpwr)
1139 {
1140 int i;
1141 char buf[80];
1142 char fraction[4][4] = { " ", ".25", ".5 ", ".75" };
1143
1144 sprintf(buf, "CCK ");
1145 for (i = 0; i < BRCMS_NUM_RATES_CCK; i++) {
1146 sprintf(buf[strlen(buf)], " %2d%s",
1147 txpwr->cck[i] / BRCMS_TXPWR_DB_FACTOR,
1148 fraction[txpwr->cck[i] % BRCMS_TXPWR_DB_FACTOR]);
1149 }
1150 printk(KERN_DEBUG "%s\n", buf);
1151
1152 sprintf(buf, "20 MHz OFDM SISO ");
1153 for (i = 0; i < BRCMS_NUM_RATES_OFDM; i++) {
1154 sprintf(buf[strlen(buf)], " %2d%s",
1155 txpwr->ofdm[i] / BRCMS_TXPWR_DB_FACTOR,
1156 fraction[txpwr->ofdm[i] % BRCMS_TXPWR_DB_FACTOR]);
1157 }
1158 printk(KERN_DEBUG "%s\n", buf);
1159
1160 sprintf(buf, "20 MHz OFDM CDD ");
1161 for (i = 0; i < BRCMS_NUM_RATES_OFDM; i++) {
1162 sprintf(buf[strlen(buf)], " %2d%s",
1163 txpwr->ofdm_cdd[i] / BRCMS_TXPWR_DB_FACTOR,
1164 fraction[txpwr->ofdm_cdd[i] % BRCMS_TXPWR_DB_FACTOR]);
1165 }
1166 printk(KERN_DEBUG "%s\n", buf);
1167
1168 sprintf(buf, "40 MHz OFDM SISO ");
1169 for (i = 0; i < BRCMS_NUM_RATES_OFDM; i++) {
1170 sprintf(buf[strlen(buf)], " %2d%s",
1171 txpwr->ofdm_40_siso[i] / BRCMS_TXPWR_DB_FACTOR,
1172 fraction[txpwr->ofdm_40_siso[i] %
1173 BRCMS_TXPWR_DB_FACTOR]);
1174 }
1175 printk(KERN_DEBUG "%s\n", buf);
1176
1177 sprintf(buf, "40 MHz OFDM CDD ");
1178 for (i = 0; i < BRCMS_NUM_RATES_OFDM; i++) {
1179 sprintf(buf[strlen(buf)], " %2d%s",
1180 txpwr->ofdm_40_cdd[i] / BRCMS_TXPWR_DB_FACTOR,
1181 fraction[txpwr->ofdm_40_cdd[i] %
1182 BRCMS_TXPWR_DB_FACTOR]);
1183 }
1184 printk(KERN_DEBUG "%s\n", buf);
1185
1186 sprintf(buf, "20 MHz MCS0-7 SISO ");
1187 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1188 sprintf(buf[strlen(buf)], " %2d%s",
1189 txpwr->mcs_20_siso[i] / BRCMS_TXPWR_DB_FACTOR,
1190 fraction[txpwr->mcs_20_siso[i] %
1191 BRCMS_TXPWR_DB_FACTOR]);
1192 }
1193 printk(KERN_DEBUG "%s\n", buf);
1194
1195 sprintf(buf, "20 MHz MCS0-7 CDD ");
1196 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1197 sprintf(buf[strlen(buf)], " %2d%s",
1198 txpwr->mcs_20_cdd[i] / BRCMS_TXPWR_DB_FACTOR,
1199 fraction[txpwr->mcs_20_cdd[i] %
1200 BRCMS_TXPWR_DB_FACTOR]);
1201 }
1202 printk(KERN_DEBUG "%s\n", buf);
1203
1204 sprintf(buf, "20 MHz MCS0-7 STBC ");
1205 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1206 sprintf(buf[strlen(buf)], " %2d%s",
1207 txpwr->mcs_20_stbc[i] / BRCMS_TXPWR_DB_FACTOR,
1208 fraction[txpwr->mcs_20_stbc[i] %
1209 BRCMS_TXPWR_DB_FACTOR]);
1210 }
1211 printk(KERN_DEBUG "%s\n", buf);
1212
1213 sprintf(buf, "20 MHz MCS8-15 SDM ");
1214 for (i = 0; i < BRCMS_NUM_RATES_MCS_2_STREAM; i++) {
1215 sprintf(buf[strlen(buf)], " %2d%s",
1216 txpwr->mcs_20_mimo[i] / BRCMS_TXPWR_DB_FACTOR,
1217 fraction[txpwr->mcs_20_mimo[i] %
1218 BRCMS_TXPWR_DB_FACTOR]);
1219 }
1220 printk(KERN_DEBUG "%s\n", buf);
1221
1222 sprintf(buf, "40 MHz MCS0-7 SISO ");
1223 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1224 sprintf(buf[strlen(buf)], " %2d%s",
1225 txpwr->mcs_40_siso[i] / BRCMS_TXPWR_DB_FACTOR,
1226 fraction[txpwr->mcs_40_siso[i] %
1227 BRCMS_TXPWR_DB_FACTOR]);
1228 }
1229 printk(KERN_DEBUG "%s\n", buf);
1230
1231 sprintf(buf, "40 MHz MCS0-7 CDD ");
1232 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1233 sprintf(buf[strlen(buf)], " %2d%s",
1234 txpwr->mcs_40_cdd[i] / BRCMS_TXPWR_DB_FACTOR,
1235 fraction[txpwr->mcs_40_cdd[i] %
1236 BRCMS_TXPWR_DB_FACTOR]);
1237 }
1238 printk(KERN_DEBUG "%s\n", buf);
1239
1240 sprintf(buf, "40 MHz MCS0-7 STBC ");
1241 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1242 sprintf(buf[strlen(buf)], " %2d%s",
1243 txpwr->mcs_40_stbc[i] / BRCMS_TXPWR_DB_FACTOR,
1244 fraction[txpwr->mcs_40_stbc[i] %
1245 BRCMS_TXPWR_DB_FACTOR]);
1246 }
1247 printk(KERN_DEBUG "%s\n", buf);
1248
1249 sprintf(buf, "40 MHz MCS8-15 SDM ");
1250 for (i = 0; i < BRCMS_NUM_RATES_MCS_2_STREAM; i++) {
1251 sprintf(buf[strlen(buf)], " %2d%s",
1252 txpwr->mcs_40_mimo[i] / BRCMS_TXPWR_DB_FACTOR,
1253 fraction[txpwr->mcs_40_mimo[i] %
1254 BRCMS_TXPWR_DB_FACTOR]);
1255 }
1256 printk(KERN_DEBUG "%s\n", buf);
1257
1258 printk(KERN_DEBUG "MCS32 %2d%s\n",
1259 txpwr->mcs32 / BRCMS_TXPWR_DB_FACTOR,
1260 fraction[txpwr->mcs32 % BRCMS_TXPWR_DB_FACTOR]);
1261 }
1262 #endif /* POWER_DBG */
1263
1264 void
1265 brcms_c_channel_reg_limits(struct brcms_cm_info *wlc_cm, chanspec_t chanspec,
1266 struct txpwr_limits *txpwr)
1267 {
1268 struct brcms_c_info *wlc = wlc_cm->wlc;
1269 uint i;
1270 uint chan;
1271 int maxpwr;
1272 int delta;
1273 const struct country_info *country;
1274 struct brcms_band *band;
1275 const struct locale_info *li;
1276 int conducted_max;
1277 int conducted_ofdm_max;
1278 const struct locale_mimo_info *li_mimo;
1279 int maxpwr20, maxpwr40;
1280 int maxpwr_idx;
1281 uint j;
1282
1283 memset(txpwr, 0, sizeof(struct txpwr_limits));
1284
1285 if (!brcms_c_valid_chanspec_db(wlc_cm, chanspec)) {
1286 country = brcms_c_country_lookup(wlc, wlc->autocountry_default);
1287 if (country == NULL)
1288 return;
1289 } else {
1290 country = wlc_cm->country;
1291 }
1292
1293 chan = CHSPEC_CHANNEL(chanspec);
1294 band = wlc->bandstate[CHSPEC_BANDUNIT(chanspec)];
1295 li = BAND_5G(band->bandtype) ?
1296 brcms_c_get_locale_5g(country->locale_5G) :
1297 brcms_c_get_locale_2g(country->locale_2G);
1298
1299 li_mimo = BAND_5G(band->bandtype) ?
1300 brcms_c_get_mimo_5g(country->locale_mimo_5G) :
1301 brcms_c_get_mimo_2g(country->locale_mimo_2G);
1302
1303 if (li->flags & BRCMS_EIRP) {
1304 delta = band->antgain;
1305 } else {
1306 delta = 0;
1307 if (band->antgain > QDB(6))
1308 delta = band->antgain - QDB(6); /* Excess over 6 dB */
1309 }
1310
1311 if (li == &locale_i) {
1312 conducted_max = QDB(22);
1313 conducted_ofdm_max = QDB(22);
1314 }
1315
1316 /* CCK txpwr limits for 2.4G band */
1317 if (BAND_2G(band->bandtype)) {
1318 maxpwr = li->maxpwr[CHANNEL_POWER_IDX_2G_CCK(chan)];
1319
1320 maxpwr = maxpwr - delta;
1321 maxpwr = max(maxpwr, 0);
1322 maxpwr = min(maxpwr, conducted_max);
1323
1324 for (i = 0; i < BRCMS_NUM_RATES_CCK; i++)
1325 txpwr->cck[i] = (u8) maxpwr;
1326 }
1327
1328 /* OFDM txpwr limits for 2.4G or 5G bands */
1329 if (BAND_2G(band->bandtype)) {
1330 maxpwr = li->maxpwr[CHANNEL_POWER_IDX_2G_OFDM(chan)];
1331
1332 } else {
1333 maxpwr = li->maxpwr[CHANNEL_POWER_IDX_5G(chan)];
1334 }
1335
1336 maxpwr = maxpwr - delta;
1337 maxpwr = max(maxpwr, 0);
1338 maxpwr = min(maxpwr, conducted_ofdm_max);
1339
1340 /* Keep OFDM lmit below CCK limit */
1341 if (BAND_2G(band->bandtype))
1342 maxpwr = min_t(int, maxpwr, txpwr->cck[0]);
1343
1344 for (i = 0; i < BRCMS_NUM_RATES_OFDM; i++)
1345 txpwr->ofdm[i] = (u8) maxpwr;
1346
1347 for (i = 0; i < BRCMS_NUM_RATES_OFDM; i++) {
1348 /* OFDM 40 MHz SISO has the same power as the corresponding MCS0-7 rate unless
1349 * overriden by the locale specific code. We set this value to 0 as a
1350 * flag (presumably 0 dBm isn't a possibility) and then copy the MCS0-7 value
1351 * to the 40 MHz value if it wasn't explicitly set.
1352 */
1353 txpwr->ofdm_40_siso[i] = 0;
1354
1355 txpwr->ofdm_cdd[i] = (u8) maxpwr;
1356
1357 txpwr->ofdm_40_cdd[i] = 0;
1358 }
1359
1360 /* MIMO/HT specific limits */
1361 if (li_mimo->flags & BRCMS_EIRP) {
1362 delta = band->antgain;
1363 } else {
1364 delta = 0;
1365 if (band->antgain > QDB(6))
1366 delta = band->antgain - QDB(6); /* Excess over 6 dB */
1367 }
1368
1369 if (BAND_2G(band->bandtype))
1370 maxpwr_idx = (chan - 1);
1371 else
1372 maxpwr_idx = CHANNEL_POWER_IDX_5G(chan);
1373
1374 maxpwr20 = li_mimo->maxpwr20[maxpwr_idx];
1375 maxpwr40 = li_mimo->maxpwr40[maxpwr_idx];
1376
1377 maxpwr20 = maxpwr20 - delta;
1378 maxpwr20 = max(maxpwr20, 0);
1379 maxpwr40 = maxpwr40 - delta;
1380 maxpwr40 = max(maxpwr40, 0);
1381
1382 /* Fill in the MCS 0-7 (SISO) rates */
1383 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1384
1385 /* 20 MHz has the same power as the corresponding OFDM rate unless
1386 * overriden by the locale specific code.
1387 */
1388 txpwr->mcs_20_siso[i] = txpwr->ofdm[i];
1389 txpwr->mcs_40_siso[i] = 0;
1390 }
1391
1392 /* Fill in the MCS 0-7 CDD rates */
1393 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1394 txpwr->mcs_20_cdd[i] = (u8) maxpwr20;
1395 txpwr->mcs_40_cdd[i] = (u8) maxpwr40;
1396 }
1397
1398 /* These locales have SISO expressed in the table and override CDD later */
1399 if (li_mimo == &locale_bn) {
1400 if (li_mimo == &locale_bn) {
1401 maxpwr20 = QDB(16);
1402 maxpwr40 = 0;
1403
1404 if (chan >= 3 && chan <= 11) {
1405 maxpwr40 = QDB(16);
1406 }
1407 }
1408
1409 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1410 txpwr->mcs_20_siso[i] = (u8) maxpwr20;
1411 txpwr->mcs_40_siso[i] = (u8) maxpwr40;
1412 }
1413 }
1414
1415 /* Fill in the MCS 0-7 STBC rates */
1416 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1417 txpwr->mcs_20_stbc[i] = 0;
1418 txpwr->mcs_40_stbc[i] = 0;
1419 }
1420
1421 /* Fill in the MCS 8-15 SDM rates */
1422 for (i = 0; i < BRCMS_NUM_RATES_MCS_2_STREAM; i++) {
1423 txpwr->mcs_20_mimo[i] = (u8) maxpwr20;
1424 txpwr->mcs_40_mimo[i] = (u8) maxpwr40;
1425 }
1426
1427 /* Fill in MCS32 */
1428 txpwr->mcs32 = (u8) maxpwr40;
1429
1430 for (i = 0, j = 0; i < BRCMS_NUM_RATES_OFDM; i++, j++) {
1431 if (txpwr->ofdm_40_cdd[i] == 0)
1432 txpwr->ofdm_40_cdd[i] = txpwr->mcs_40_cdd[j];
1433 if (i == 0) {
1434 i = i + 1;
1435 if (txpwr->ofdm_40_cdd[i] == 0)
1436 txpwr->ofdm_40_cdd[i] = txpwr->mcs_40_cdd[j];
1437 }
1438 }
1439
1440 /* Copy the 40 MHZ MCS 0-7 CDD value to the 40 MHZ MCS 0-7 SISO value if it wasn't
1441 * provided explicitly.
1442 */
1443
1444 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1445 if (txpwr->mcs_40_siso[i] == 0)
1446 txpwr->mcs_40_siso[i] = txpwr->mcs_40_cdd[i];
1447 }
1448
1449 for (i = 0, j = 0; i < BRCMS_NUM_RATES_OFDM; i++, j++) {
1450 if (txpwr->ofdm_40_siso[i] == 0)
1451 txpwr->ofdm_40_siso[i] = txpwr->mcs_40_siso[j];
1452 if (i == 0) {
1453 i = i + 1;
1454 if (txpwr->ofdm_40_siso[i] == 0)
1455 txpwr->ofdm_40_siso[i] = txpwr->mcs_40_siso[j];
1456 }
1457 }
1458
1459 /* Copy the 20 and 40 MHz MCS0-7 CDD values to the corresponding STBC values if they weren't
1460 * provided explicitly.
1461 */
1462 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1463 if (txpwr->mcs_20_stbc[i] == 0)
1464 txpwr->mcs_20_stbc[i] = txpwr->mcs_20_cdd[i];
1465
1466 if (txpwr->mcs_40_stbc[i] == 0)
1467 txpwr->mcs_40_stbc[i] = txpwr->mcs_40_cdd[i];
1468 }
1469
1470 #ifdef POWER_DBG
1471 wlc_phy_txpower_limits_dump(txpwr);
1472 #endif
1473 return;
1474 }
1475
1476 /* Returns true if currently set country is Japan or variant */
1477 static bool brcms_c_japan(struct brcms_c_info *wlc)
1478 {
1479 return brcms_c_japan_ccode(wlc->cmi->country_abbrev);
1480 }
1481
1482 /* JP, J1 - J10 are Japan ccodes */
1483 static bool brcms_c_japan_ccode(const char *ccode)
1484 {
1485 return (ccode[0] == 'J' &&
1486 (ccode[1] == 'P' || (ccode[1] >= '1' && ccode[1] <= '9')));
1487 }
1488
1489 /*
1490 * Validate the chanspec for this locale, for 40MHZ we need to also check that the sidebands
1491 * are valid 20MZH channels in this locale and they are also a legal HT combination
1492 */
1493 static bool
1494 brcms_c_valid_chanspec_ext(struct brcms_cm_info *wlc_cm, chanspec_t chspec,
1495 bool dualband)
1496 {
1497 struct brcms_c_info *wlc = wlc_cm->wlc;
1498 u8 channel = CHSPEC_CHANNEL(chspec);
1499
1500 /* check the chanspec */
1501 if (brcmu_chspec_malformed(chspec)) {
1502 wiphy_err(wlc->wiphy, "wl%d: malformed chanspec 0x%x\n",
1503 wlc->pub->unit, chspec);
1504 return false;
1505 }
1506
1507 if (CHANNEL_BANDUNIT(wlc_cm->wlc, channel) !=
1508 CHSPEC_BANDUNIT(chspec))
1509 return false;
1510
1511 /* Check a 20Mhz channel */
1512 if (CHSPEC_IS20(chspec)) {
1513 if (dualband)
1514 return VALID_CHANNEL20_DB(wlc_cm->wlc, channel);
1515 else
1516 return VALID_CHANNEL20(wlc_cm->wlc, channel);
1517 }
1518 #ifdef SUPPORT_40MHZ
1519 /* We know we are now checking a 40MHZ channel, so we should only be here
1520 * for NPHYS
1521 */
1522 if (BRCMS_ISNPHY(wlc->band) || BRCMS_ISSSLPNPHY(wlc->band)) {
1523 u8 upper_sideband = 0, idx;
1524 u8 num_ch20_entries =
1525 sizeof(chan20_info) / sizeof(struct chan20_info);
1526
1527 if (!VALID_40CHANSPEC_IN_BAND(wlc, CHSPEC_BANDUNIT(chspec)))
1528 return false;
1529
1530 if (dualband) {
1531 if (!VALID_CHANNEL20_DB(wlc, LOWER_20_SB(channel)) ||
1532 !VALID_CHANNEL20_DB(wlc, UPPER_20_SB(channel)))
1533 return false;
1534 } else {
1535 if (!VALID_CHANNEL20(wlc, LOWER_20_SB(channel)) ||
1536 !VALID_CHANNEL20(wlc, UPPER_20_SB(channel)))
1537 return false;
1538 }
1539
1540 /* find the lower sideband info in the sideband array */
1541 for (idx = 0; idx < num_ch20_entries; idx++) {
1542 if (chan20_info[idx].sb == LOWER_20_SB(channel))
1543 upper_sideband = chan20_info[idx].adj_sbs;
1544 }
1545 /* check that the lower sideband allows an upper sideband */
1546 if ((upper_sideband & (CH_UPPER_SB | CH_EWA_VALID)) ==
1547 (CH_UPPER_SB | CH_EWA_VALID))
1548 return true;
1549 return false;
1550 }
1551 #endif /* 40 MHZ */
1552
1553 return false;
1554 }
1555
1556 bool brcms_c_valid_chanspec_db(struct brcms_cm_info *wlc_cm, chanspec_t chspec)
1557 {
1558 return brcms_c_valid_chanspec_ext(wlc_cm, chspec, true);
1559 }
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