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 "main.h"
24 #include "stf.h"
25 #include "channel.h"
26
27 /* QDB() macro takes a dB value and converts to a quarter dB value */
28 #define QDB(n) ((n) * BRCMS_TXPWR_DB_FACTOR)
29
30 #define LOCALE_CHAN_01_11 (1<<0)
31 #define LOCALE_CHAN_12_13 (1<<1)
32 #define LOCALE_CHAN_14 (1<<2)
33 #define LOCALE_SET_5G_LOW_JP1 (1<<3) /* 34-48, step 2 */
34 #define LOCALE_SET_5G_LOW_JP2 (1<<4) /* 34-46, step 4 */
35 #define LOCALE_SET_5G_LOW1 (1<<5) /* 36-48, step 4 */
36 #define LOCALE_SET_5G_LOW2 (1<<6) /* 52 */
37 #define LOCALE_SET_5G_LOW3 (1<<7) /* 56-64, step 4 */
38 #define LOCALE_SET_5G_MID1 (1<<8) /* 100-116, step 4 */
39 #define LOCALE_SET_5G_MID2 (1<<9) /* 120-124, step 4 */
40 #define LOCALE_SET_5G_MID3 (1<<10) /* 128 */
41 #define LOCALE_SET_5G_HIGH1 (1<<11) /* 132-140, step 4 */
42 #define LOCALE_SET_5G_HIGH2 (1<<12) /* 149-161, step 4 */
43 #define LOCALE_SET_5G_HIGH3 (1<<13) /* 165 */
44 #define LOCALE_CHAN_52_140_ALL (1<<14)
45 #define LOCALE_SET_5G_HIGH4 (1<<15) /* 184-216 */
46
47 #define LOCALE_CHAN_36_64 (LOCALE_SET_5G_LOW1 | \
48 LOCALE_SET_5G_LOW2 | \
49 LOCALE_SET_5G_LOW3)
50 #define LOCALE_CHAN_52_64 (LOCALE_SET_5G_LOW2 | LOCALE_SET_5G_LOW3)
51 #define LOCALE_CHAN_100_124 (LOCALE_SET_5G_MID1 | LOCALE_SET_5G_MID2)
52 #define LOCALE_CHAN_100_140 (LOCALE_SET_5G_MID1 | LOCALE_SET_5G_MID2 | \
53 LOCALE_SET_5G_MID3 | LOCALE_SET_5G_HIGH1)
54 #define LOCALE_CHAN_149_165 (LOCALE_SET_5G_HIGH2 | LOCALE_SET_5G_HIGH3)
55 #define LOCALE_CHAN_184_216 LOCALE_SET_5G_HIGH4
56
57 #define LOCALE_CHAN_01_14 (LOCALE_CHAN_01_11 | \
58 LOCALE_CHAN_12_13 | \
59 LOCALE_CHAN_14)
60
61 #define LOCALE_RADAR_SET_NONE 0
62 #define LOCALE_RADAR_SET_1 1
63
64 #define LOCALE_RESTRICTED_NONE 0
65 #define LOCALE_RESTRICTED_SET_2G_SHORT 1
66 #define LOCALE_RESTRICTED_CHAN_165 2
67 #define LOCALE_CHAN_ALL_5G 3
68 #define LOCALE_RESTRICTED_JAPAN_LEGACY 4
69 #define LOCALE_RESTRICTED_11D_2G 5
70 #define LOCALE_RESTRICTED_11D_5G 6
71 #define LOCALE_RESTRICTED_LOW_HI 7
72 #define LOCALE_RESTRICTED_12_13_14 8
73
74 #define LOCALE_2G_IDX_i 0
75 #define LOCALE_5G_IDX_11 0
76 #define LOCALE_MIMO_IDX_bn 0
77 #define LOCALE_MIMO_IDX_11n 0
78
79 /* max of BAND_5G_PWR_LVLS and 6 for 2.4 GHz */
80 #define BRCMS_MAXPWR_TBL_SIZE 6
81 /* max of BAND_5G_PWR_LVLS and 14 for 2.4 GHz */
82 #define BRCMS_MAXPWR_MIMO_TBL_SIZE 14
83
84 /* power level in group of 2.4GHz band channels:
85 * maxpwr[0] - CCK channels [1]
86 * maxpwr[1] - CCK channels [2-10]
87 * maxpwr[2] - CCK channels [11-14]
88 * maxpwr[3] - OFDM channels [1]
89 * maxpwr[4] - OFDM channels [2-10]
90 * maxpwr[5] - OFDM channels [11-14]
91 */
92
93 /* maxpwr mapping to 5GHz band channels:
94 * maxpwr[0] - channels [34-48]
95 * maxpwr[1] - channels [52-60]
96 * maxpwr[2] - channels [62-64]
97 * maxpwr[3] - channels [100-140]
98 * maxpwr[4] - channels [149-165]
99 */
100 #define BAND_5G_PWR_LVLS 5 /* 5 power levels for 5G */
101
102 #define LC(id) LOCALE_MIMO_IDX_ ## id
103
104 #define LC_2G(id) LOCALE_2G_IDX_ ## id
105
106 #define LC_5G(id) LOCALE_5G_IDX_ ## id
107
108 #define LOCALES(band2, band5, mimo2, mimo5) \
109 {LC_2G(band2), LC_5G(band5), LC(mimo2), LC(mimo5)}
110
111 /* macro to get 2.4 GHz channel group index for tx power */
112 #define CHANNEL_POWER_IDX_2G_CCK(c) (((c) < 2) ? 0 : (((c) < 11) ? 1 : 2))
113 #define CHANNEL_POWER_IDX_2G_OFDM(c) (((c) < 2) ? 3 : (((c) < 11) ? 4 : 5))
114
115 /* macro to get 5 GHz channel group index for tx power */
116 #define CHANNEL_POWER_IDX_5G(c) (((c) < 52) ? 0 : \
117 (((c) < 62) ? 1 : \
118 (((c) < 100) ? 2 : \
119 (((c) < 149) ? 3 : 4))))
120
121 #define ISDFS_EU(fl) (((fl) & BRCMS_DFS_EU) == BRCMS_DFS_EU)
122
123 struct brcms_cm_band {
124 /* struct locale_info flags */
125 u8 locale_flags;
126 /* List of valid channels in the country */
127 struct brcms_chanvec valid_channels;
128 /* List of restricted use channels */
129 const struct brcms_chanvec *restricted_channels;
130 /* List of radar sensitive channels */
131 const struct brcms_chanvec *radar_channels;
132 u8 PAD[8];
133 };
134
135 /* locale per-channel tx power limits for MIMO frames
136 * maxpwr arrays are index by channel for 2.4 GHz limits, and
137 * by sub-band for 5 GHz limits using CHANNEL_POWER_IDX_5G(channel)
138 */
139 struct locale_mimo_info {
140 /* tx 20 MHz power limits, qdBm units */
141 s8 maxpwr20[BRCMS_MAXPWR_MIMO_TBL_SIZE];
142 /* tx 40 MHz power limits, qdBm units */
143 s8 maxpwr40[BRCMS_MAXPWR_MIMO_TBL_SIZE];
144 u8 flags;
145 };
146
147 /* Country names and abbreviations with locale defined from ISO 3166 */
148 struct country_info {
149 const u8 locale_2G; /* 2.4G band locale */
150 const u8 locale_5G; /* 5G band locale */
151 const u8 locale_mimo_2G; /* 2.4G mimo info */
152 const u8 locale_mimo_5G; /* 5G mimo info */
153 };
154
155 struct brcms_cm_info {
156 struct brcms_pub *pub;
157 struct brcms_c_info *wlc;
158 char srom_ccode[BRCM_CNTRY_BUF_SZ]; /* Country Code in SROM */
159 uint srom_regrev; /* Regulatory Rev for the SROM ccode */
160 const struct country_info *country; /* current country def */
161 char ccode[BRCM_CNTRY_BUF_SZ]; /* current internal Country Code */
162 uint regrev; /* current Regulatory Revision */
163 char country_abbrev[BRCM_CNTRY_BUF_SZ]; /* current advertised ccode */
164 /* per-band state (one per phy/radio) */
165 struct brcms_cm_band bandstate[MAXBANDS];
166 /* quiet channels currently for radar sensitivity or 11h support */
167 /* channels on which we cannot transmit */
168 struct brcms_chanvec quiet_channels;
169 };
170
171 /* locale channel and power info. */
172 struct locale_info {
173 u32 valid_channels;
174 /* List of radar sensitive channels */
175 u8 radar_channels;
176 /* List of channels used only if APs are detected */
177 u8 restricted_channels;
178 /* Max tx pwr in qdBm for each sub-band */
179 s8 maxpwr[BRCMS_MAXPWR_TBL_SIZE];
180 /* Country IE advertised max tx pwr in dBm per sub-band */
181 s8 pub_maxpwr[BAND_5G_PWR_LVLS];
182 u8 flags;
183 };
184
185 /* Regulatory Matrix Spreadsheet (CLM) MIMO v3.7.9 */
186
187 /*
188 * Some common channel sets
189 */
190
191 /* No channels */
192 static const struct brcms_chanvec chanvec_none = {
193 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
194 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
195 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
196 0x00, 0x00, 0x00, 0x00}
197 };
198
199 /* All 2.4 GHz HW channels */
200 static const struct brcms_chanvec chanvec_all_2G = {
201 {0xfe, 0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
202 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
203 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
204 0x00, 0x00, 0x00, 0x00}
205 };
206
207 /* All 5 GHz HW channels */
208 static const struct brcms_chanvec chanvec_all_5G = {
209 {0x00, 0x00, 0x00, 0x00, 0x54, 0x55, 0x11, 0x11,
210 0x01, 0x00, 0x00, 0x00, 0x10, 0x11, 0x11, 0x11,
211 0x11, 0x11, 0x20, 0x22, 0x22, 0x00, 0x00, 0x11,
212 0x11, 0x11, 0x11, 0x01}
213 };
214
215 /*
216 * Radar channel sets
217 */
218
219 /* Channels 52 - 64, 100 - 140 */
220 static const struct brcms_chanvec radar_set1 = {
221 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x11, /* 52 - 60 */
222 0x01, 0x00, 0x00, 0x00, 0x10, 0x11, 0x11, 0x11, /* 64, 100 - 124 */
223 0x11, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 128 - 140 */
224 0x00, 0x00, 0x00, 0x00}
225 };
226
227 /*
228 * Restricted channel sets
229 */
230
231 /* Channels 34, 38, 42, 46 */
232 static const struct brcms_chanvec restricted_set_japan_legacy = {
233 {0x00, 0x00, 0x00, 0x00, 0x44, 0x44, 0x00, 0x00,
234 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
235 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
236 0x00, 0x00, 0x00, 0x00}
237 };
238
239 /* Channels 12, 13 */
240 static const struct brcms_chanvec restricted_set_2g_short = {
241 {0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
242 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
243 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
244 0x00, 0x00, 0x00, 0x00}
245 };
246
247 /* Channel 165 */
248 static const struct brcms_chanvec restricted_chan_165 = {
249 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
250 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
251 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00,
252 0x00, 0x00, 0x00, 0x00}
253 };
254
255 /* Channels 36 - 48 & 149 - 165 */
256 static const struct brcms_chanvec restricted_low_hi = {
257 {0x00, 0x00, 0x00, 0x00, 0x10, 0x11, 0x01, 0x00,
258 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
259 0x00, 0x00, 0x20, 0x22, 0x22, 0x00, 0x00, 0x00,
260 0x00, 0x00, 0x00, 0x00}
261 };
262
263 /* Channels 12 - 14 */
264 static const struct brcms_chanvec restricted_set_12_13_14 = {
265 {0x00, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
266 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
267 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
268 0x00, 0x00, 0x00, 0x00}
269 };
270
271 /* global memory to provide working buffer for expanded locale */
272
273 static const struct brcms_chanvec *g_table_radar_set[] = {
274 &chanvec_none,
275 &radar_set1
276 };
277
278 static const struct brcms_chanvec *g_table_restricted_chan[] = {
279 &chanvec_none, /* restricted_set_none */
280 &restricted_set_2g_short,
281 &restricted_chan_165,
282 &chanvec_all_5G,
283 &restricted_set_japan_legacy,
284 &chanvec_all_2G, /* restricted_set_11d_2G */
285 &chanvec_all_5G, /* restricted_set_11d_5G */
286 &restricted_low_hi,
287 &restricted_set_12_13_14
288 };
289
290 static const struct brcms_chanvec locale_2g_01_11 = {
291 {0xfe, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
292 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
293 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
294 0x00, 0x00, 0x00, 0x00}
295 };
296
297 static const struct brcms_chanvec locale_2g_12_13 = {
298 {0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
299 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
300 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
301 0x00, 0x00, 0x00, 0x00}
302 };
303
304 static const struct brcms_chanvec locale_2g_14 = {
305 {0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
306 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
307 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
308 0x00, 0x00, 0x00, 0x00}
309 };
310
311 static const struct brcms_chanvec locale_5g_LOW_JP1 = {
312 {0x00, 0x00, 0x00, 0x00, 0x54, 0x55, 0x01, 0x00,
313 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
314 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
315 0x00, 0x00, 0x00, 0x00}
316 };
317
318 static const struct brcms_chanvec locale_5g_LOW_JP2 = {
319 {0x00, 0x00, 0x00, 0x00, 0x44, 0x44, 0x00, 0x00,
320 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
321 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
322 0x00, 0x00, 0x00, 0x00}
323 };
324
325 static const struct brcms_chanvec locale_5g_LOW1 = {
326 {0x00, 0x00, 0x00, 0x00, 0x10, 0x11, 0x01, 0x00,
327 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
328 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
329 0x00, 0x00, 0x00, 0x00}
330 };
331
332 static const struct brcms_chanvec locale_5g_LOW2 = {
333 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
334 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
335 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
336 0x00, 0x00, 0x00, 0x00}
337 };
338
339 static const struct brcms_chanvec locale_5g_LOW3 = {
340 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11,
341 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
342 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
343 0x00, 0x00, 0x00, 0x00}
344 };
345
346 static const struct brcms_chanvec locale_5g_MID1 = {
347 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
348 0x00, 0x00, 0x00, 0x00, 0x10, 0x11, 0x11, 0x00,
349 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
350 0x00, 0x00, 0x00, 0x00}
351 };
352
353 static const struct brcms_chanvec locale_5g_MID2 = {
354 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
355 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11,
356 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
357 0x00, 0x00, 0x00, 0x00}
358 };
359
360 static const struct brcms_chanvec locale_5g_MID3 = {
361 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
362 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
363 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
364 0x00, 0x00, 0x00, 0x00}
365 };
366
367 static const struct brcms_chanvec locale_5g_HIGH1 = {
368 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
369 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
370 0x10, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
371 0x00, 0x00, 0x00, 0x00}
372 };
373
374 static const struct brcms_chanvec locale_5g_HIGH2 = {
375 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
376 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
377 0x00, 0x00, 0x20, 0x22, 0x02, 0x00, 0x00, 0x00,
378 0x00, 0x00, 0x00, 0x00}
379 };
380
381 static const struct brcms_chanvec locale_5g_HIGH3 = {
382 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
383 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
384 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00,
385 0x00, 0x00, 0x00, 0x00}
386 };
387
388 static const struct brcms_chanvec locale_5g_52_140_ALL = {
389 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x11,
390 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11,
391 0x11, 0x11, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00,
392 0x00, 0x00, 0x00, 0x00}
393 };
394
395 static const struct brcms_chanvec locale_5g_HIGH4 = {
396 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
397 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
398 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11,
399 0x11, 0x11, 0x11, 0x11}
400 };
401
402 static const struct brcms_chanvec *g_table_locale_base[] = {
403 &locale_2g_01_11,
404 &locale_2g_12_13,
405 &locale_2g_14,
406 &locale_5g_LOW_JP1,
407 &locale_5g_LOW_JP2,
408 &locale_5g_LOW1,
409 &locale_5g_LOW2,
410 &locale_5g_LOW3,
411 &locale_5g_MID1,
412 &locale_5g_MID2,
413 &locale_5g_MID3,
414 &locale_5g_HIGH1,
415 &locale_5g_HIGH2,
416 &locale_5g_HIGH3,
417 &locale_5g_52_140_ALL,
418 &locale_5g_HIGH4
419 };
420
brcms_c_locale_add_channels(struct brcms_chanvec * target,const struct brcms_chanvec * channels)421 static void brcms_c_locale_add_channels(struct brcms_chanvec *target,
422 const struct brcms_chanvec *channels)
423 {
424 u8 i;
425 for (i = 0; i < sizeof(struct brcms_chanvec); i++)
426 target->vec[i] |= channels->vec[i];
427 }
428
brcms_c_locale_get_channels(const struct locale_info * locale,struct brcms_chanvec * channels)429 static void brcms_c_locale_get_channels(const struct locale_info *locale,
430 struct brcms_chanvec *channels)
431 {
432 u8 i;
433
434 memset(channels, 0, sizeof(struct brcms_chanvec));
435
436 for (i = 0; i < ARRAY_SIZE(g_table_locale_base); i++) {
437 if (locale->valid_channels & (1 << i))
438 brcms_c_locale_add_channels(channels,
439 g_table_locale_base[i]);
440 }
441 }
442
443 /*
444 * Locale Definitions - 2.4 GHz
445 */
446 static const struct locale_info locale_i = { /* locale i. channel 1 - 13 */
447 LOCALE_CHAN_01_11 | LOCALE_CHAN_12_13,
448 LOCALE_RADAR_SET_NONE,
449 LOCALE_RESTRICTED_SET_2G_SHORT,
450 {QDB(19), QDB(19), QDB(19),
451 QDB(19), QDB(19), QDB(19)},
452 {20, 20, 20, 0},
453 BRCMS_EIRP
454 };
455
456 /*
457 * Locale Definitions - 5 GHz
458 */
459 static const struct locale_info locale_11 = {
460 /* locale 11. channel 36 - 48, 52 - 64, 100 - 140, 149 - 165 */
461 LOCALE_CHAN_36_64 | LOCALE_CHAN_100_140 | LOCALE_CHAN_149_165,
462 LOCALE_RADAR_SET_1,
463 LOCALE_RESTRICTED_NONE,
464 {QDB(21), QDB(21), QDB(21), QDB(21), QDB(21)},
465 {23, 23, 23, 30, 30},
466 BRCMS_EIRP | BRCMS_DFS_EU
467 };
468
469 static const struct locale_info *g_locale_2g_table[] = {
470 &locale_i
471 };
472
473 static const struct locale_info *g_locale_5g_table[] = {
474 &locale_11
475 };
476
477 /*
478 * MIMO Locale Definitions - 2.4 GHz
479 */
480 static const struct locale_mimo_info locale_bn = {
481 {QDB(13), QDB(13), QDB(13), QDB(13), QDB(13),
482 QDB(13), QDB(13), QDB(13), QDB(13), QDB(13),
483 QDB(13), QDB(13), QDB(13)},
484 {0, 0, QDB(13), QDB(13), QDB(13),
485 QDB(13), QDB(13), QDB(13), QDB(13), QDB(13),
486 QDB(13), 0, 0},
487 0
488 };
489
490 static const struct locale_mimo_info *g_mimo_2g_table[] = {
491 &locale_bn
492 };
493
494 /*
495 * MIMO Locale Definitions - 5 GHz
496 */
497 static const struct locale_mimo_info locale_11n = {
498 { /* 12.5 dBm */ 50, 50, 50, QDB(15), QDB(15)},
499 {QDB(14), QDB(15), QDB(15), QDB(15), QDB(15)},
500 0
501 };
502
503 static const struct locale_mimo_info *g_mimo_5g_table[] = {
504 &locale_11n
505 };
506
507 static const struct {
508 char abbrev[BRCM_CNTRY_BUF_SZ]; /* country abbreviation */
509 struct country_info country;
510 } cntry_locales[] = {
511 {
512 "X2", LOCALES(i, 11, bn, 11n)}, /* Worldwide RoW 2 */
513 };
514
515 #ifdef SUPPORT_40MHZ
516 /* 20MHz channel info for 40MHz pairing support */
517 struct chan20_info {
518 u8 sb;
519 u8 adj_sbs;
520 };
521
522 /* indicates adjacent channels that are allowed for a 40 Mhz channel and
523 * those that permitted by the HT
524 */
525 struct chan20_info chan20_info[] = {
526 /* 11b/11g */
527 /* 0 */ {1, (CH_UPPER_SB | CH_EWA_VALID)},
528 /* 1 */ {2, (CH_UPPER_SB | CH_EWA_VALID)},
529 /* 2 */ {3, (CH_UPPER_SB | CH_EWA_VALID)},
530 /* 3 */ {4, (CH_UPPER_SB | CH_EWA_VALID)},
531 /* 4 */ {5, (CH_UPPER_SB | CH_LOWER_SB | CH_EWA_VALID)},
532 /* 5 */ {6, (CH_UPPER_SB | CH_LOWER_SB | CH_EWA_VALID)},
533 /* 6 */ {7, (CH_UPPER_SB | CH_LOWER_SB | CH_EWA_VALID)},
534 /* 7 */ {8, (CH_UPPER_SB | CH_LOWER_SB | CH_EWA_VALID)},
535 /* 8 */ {9, (CH_UPPER_SB | CH_LOWER_SB | CH_EWA_VALID)},
536 /* 9 */ {10, (CH_LOWER_SB | CH_EWA_VALID)},
537 /* 10 */ {11, (CH_LOWER_SB | CH_EWA_VALID)},
538 /* 11 */ {12, (CH_LOWER_SB)},
539 /* 12 */ {13, (CH_LOWER_SB)},
540 /* 13 */ {14, (CH_LOWER_SB)},
541
542 /* 11a japan high */
543 /* 14 */ {34, (CH_UPPER_SB)},
544 /* 15 */ {38, (CH_LOWER_SB)},
545 /* 16 */ {42, (CH_LOWER_SB)},
546 /* 17 */ {46, (CH_LOWER_SB)},
547
548 /* 11a usa low */
549 /* 18 */ {36, (CH_UPPER_SB | CH_EWA_VALID)},
550 /* 19 */ {40, (CH_LOWER_SB | CH_EWA_VALID)},
551 /* 20 */ {44, (CH_UPPER_SB | CH_EWA_VALID)},
552 /* 21 */ {48, (CH_LOWER_SB | CH_EWA_VALID)},
553 /* 22 */ {52, (CH_UPPER_SB | CH_EWA_VALID)},
554 /* 23 */ {56, (CH_LOWER_SB | CH_EWA_VALID)},
555 /* 24 */ {60, (CH_UPPER_SB | CH_EWA_VALID)},
556 /* 25 */ {64, (CH_LOWER_SB | CH_EWA_VALID)},
557
558 /* 11a Europe */
559 /* 26 */ {100, (CH_UPPER_SB | CH_EWA_VALID)},
560 /* 27 */ {104, (CH_LOWER_SB | CH_EWA_VALID)},
561 /* 28 */ {108, (CH_UPPER_SB | CH_EWA_VALID)},
562 /* 29 */ {112, (CH_LOWER_SB | CH_EWA_VALID)},
563 /* 30 */ {116, (CH_UPPER_SB | CH_EWA_VALID)},
564 /* 31 */ {120, (CH_LOWER_SB | CH_EWA_VALID)},
565 /* 32 */ {124, (CH_UPPER_SB | CH_EWA_VALID)},
566 /* 33 */ {128, (CH_LOWER_SB | CH_EWA_VALID)},
567 /* 34 */ {132, (CH_UPPER_SB | CH_EWA_VALID)},
568 /* 35 */ {136, (CH_LOWER_SB | CH_EWA_VALID)},
569 /* 36 */ {140, (CH_LOWER_SB)},
570
571 /* 11a usa high, ref5 only */
572 /* The 0x80 bit in pdiv means these are REF5, other entries are REF20 */
573 /* 37 */ {149, (CH_UPPER_SB | CH_EWA_VALID)},
574 /* 38 */ {153, (CH_LOWER_SB | CH_EWA_VALID)},
575 /* 39 */ {157, (CH_UPPER_SB | CH_EWA_VALID)},
576 /* 40 */ {161, (CH_LOWER_SB | CH_EWA_VALID)},
577 /* 41 */ {165, (CH_LOWER_SB)},
578
579 /* 11a japan */
580 /* 42 */ {184, (CH_UPPER_SB)},
581 /* 43 */ {188, (CH_LOWER_SB)},
582 /* 44 */ {192, (CH_UPPER_SB)},
583 /* 45 */ {196, (CH_LOWER_SB)},
584 /* 46 */ {200, (CH_UPPER_SB)},
585 /* 47 */ {204, (CH_LOWER_SB)},
586 /* 48 */ {208, (CH_UPPER_SB)},
587 /* 49 */ {212, (CH_LOWER_SB)},
588 /* 50 */ {216, (CH_LOWER_SB)}
589 };
590 #endif /* SUPPORT_40MHZ */
591
brcms_c_get_locale_2g(u8 locale_idx)592 static const struct locale_info *brcms_c_get_locale_2g(u8 locale_idx)
593 {
594 if (locale_idx >= ARRAY_SIZE(g_locale_2g_table))
595 return NULL; /* error condition */
596
597 return g_locale_2g_table[locale_idx];
598 }
599
brcms_c_get_locale_5g(u8 locale_idx)600 static const struct locale_info *brcms_c_get_locale_5g(u8 locale_idx)
601 {
602 if (locale_idx >= ARRAY_SIZE(g_locale_5g_table))
603 return NULL; /* error condition */
604
605 return g_locale_5g_table[locale_idx];
606 }
607
brcms_c_get_mimo_2g(u8 locale_idx)608 static const struct locale_mimo_info *brcms_c_get_mimo_2g(u8 locale_idx)
609 {
610 if (locale_idx >= ARRAY_SIZE(g_mimo_2g_table))
611 return NULL;
612
613 return g_mimo_2g_table[locale_idx];
614 }
615
brcms_c_get_mimo_5g(u8 locale_idx)616 static const struct locale_mimo_info *brcms_c_get_mimo_5g(u8 locale_idx)
617 {
618 if (locale_idx >= ARRAY_SIZE(g_mimo_5g_table))
619 return NULL;
620
621 return g_mimo_5g_table[locale_idx];
622 }
623
624 static int
brcms_c_country_aggregate_map(struct brcms_cm_info * wlc_cm,const char * ccode,char * mapped_ccode,uint * mapped_regrev)625 brcms_c_country_aggregate_map(struct brcms_cm_info *wlc_cm, const char *ccode,
626 char *mapped_ccode, uint *mapped_regrev)
627 {
628 return false;
629 }
630
631 /* Lookup a country info structure from a null terminated country
632 * abbreviation and regrev directly with no translation.
633 */
634 static const struct country_info *
brcms_c_country_lookup_direct(const char * ccode,uint regrev)635 brcms_c_country_lookup_direct(const char *ccode, uint regrev)
636 {
637 uint size, i;
638
639 /* Should just return 0 for single locale driver. */
640 /* Keep it this way in case we add more locales. (for now anyway) */
641
642 /*
643 * all other country def arrays are for regrev == 0, so if
644 * regrev is non-zero, fail
645 */
646 if (regrev > 0)
647 return NULL;
648
649 /* find matched table entry from country code */
650 size = ARRAY_SIZE(cntry_locales);
651 for (i = 0; i < size; i++) {
652 if (strcmp(ccode, cntry_locales[i].abbrev) == 0)
653 return &cntry_locales[i].country;
654 }
655 return NULL;
656 }
657
658 static const struct country_info *
brcms_c_countrycode_map(struct brcms_cm_info * wlc_cm,const char * ccode,char * mapped_ccode,uint * mapped_regrev)659 brcms_c_countrycode_map(struct brcms_cm_info *wlc_cm, const char *ccode,
660 char *mapped_ccode, uint *mapped_regrev)
661 {
662 struct brcms_c_info *wlc = wlc_cm->wlc;
663 const struct country_info *country;
664 uint srom_regrev = wlc_cm->srom_regrev;
665 const char *srom_ccode = wlc_cm->srom_ccode;
666 int mapped;
667
668 /* check for currently supported ccode size */
669 if (strlen(ccode) > (BRCM_CNTRY_BUF_SZ - 1)) {
670 wiphy_err(wlc->wiphy, "wl%d: %s: ccode \"%s\" too long for "
671 "match\n", wlc->pub->unit, __func__, ccode);
672 return NULL;
673 }
674
675 /* default mapping is the given ccode and regrev 0 */
676 strncpy(mapped_ccode, ccode, BRCM_CNTRY_BUF_SZ);
677 *mapped_regrev = 0;
678
679 /* If the desired country code matches the srom country code,
680 * then the mapped country is the srom regulatory rev.
681 * Otherwise look for an aggregate mapping.
682 */
683 if (!strcmp(srom_ccode, ccode)) {
684 *mapped_regrev = srom_regrev;
685 mapped = 0;
686 wiphy_err(wlc->wiphy, "srom_code == ccode %s\n", __func__);
687 } else {
688 mapped =
689 brcms_c_country_aggregate_map(wlc_cm, ccode, mapped_ccode,
690 mapped_regrev);
691 }
692
693 /* find the matching built-in country definition */
694 country = brcms_c_country_lookup_direct(mapped_ccode, *mapped_regrev);
695
696 /* if there is not an exact rev match, default to rev zero */
697 if (country == NULL && *mapped_regrev != 0) {
698 *mapped_regrev = 0;
699 country =
700 brcms_c_country_lookup_direct(mapped_ccode, *mapped_regrev);
701 }
702
703 return country;
704 }
705
706 /* Lookup a country info structure from a null terminated country code
707 * The lookup is case sensitive.
708 */
709 static const struct country_info *
brcms_c_country_lookup(struct brcms_c_info * wlc,const char * ccode)710 brcms_c_country_lookup(struct brcms_c_info *wlc, const char *ccode)
711 {
712 const struct country_info *country;
713 char mapped_ccode[BRCM_CNTRY_BUF_SZ];
714 uint mapped_regrev;
715
716 /*
717 * map the country code to a built-in country code, regrev, and
718 * country_info struct
719 */
720 country = brcms_c_countrycode_map(wlc->cmi, ccode, mapped_ccode,
721 &mapped_regrev);
722
723 return country;
724 }
725
726 /*
727 * reset the quiet channels vector to the union
728 * of the restricted and radar channel sets
729 */
brcms_c_quiet_channels_reset(struct brcms_cm_info * wlc_cm)730 static void brcms_c_quiet_channels_reset(struct brcms_cm_info *wlc_cm)
731 {
732 struct brcms_c_info *wlc = wlc_cm->wlc;
733 uint i, j;
734 struct brcms_band *band;
735 const struct brcms_chanvec *chanvec;
736
737 memset(&wlc_cm->quiet_channels, 0, sizeof(struct brcms_chanvec));
738
739 band = wlc->band;
740 for (i = 0; i < wlc->pub->_nbands;
741 i++, band = wlc->bandstate[OTHERBANDUNIT(wlc)]) {
742
743 /* initialize quiet channels for restricted channels */
744 chanvec = wlc_cm->bandstate[band->bandunit].restricted_channels;
745 for (j = 0; j < sizeof(struct brcms_chanvec); j++)
746 wlc_cm->quiet_channels.vec[j] |= chanvec->vec[j];
747
748 }
749 }
750
751 /* Is the channel valid for the current locale and current band? */
brcms_c_valid_channel20(struct brcms_cm_info * wlc_cm,uint val)752 static bool brcms_c_valid_channel20(struct brcms_cm_info *wlc_cm, uint val)
753 {
754 struct brcms_c_info *wlc = wlc_cm->wlc;
755
756 return ((val < MAXCHANNEL) &&
757 isset(wlc_cm->bandstate[wlc->band->bandunit].valid_channels.vec,
758 val));
759 }
760
761 /* Is the channel valid for the current locale and specified band? */
brcms_c_valid_channel20_in_band(struct brcms_cm_info * wlc_cm,uint bandunit,uint val)762 static bool brcms_c_valid_channel20_in_band(struct brcms_cm_info *wlc_cm,
763 uint bandunit, uint val)
764 {
765 return ((val < MAXCHANNEL)
766 && isset(wlc_cm->bandstate[bandunit].valid_channels.vec, val));
767 }
768
769 /* Is the channel valid for the current locale? (but don't consider channels not
770 * available due to bandlocking)
771 */
brcms_c_valid_channel20_db(struct brcms_cm_info * wlc_cm,uint val)772 static bool brcms_c_valid_channel20_db(struct brcms_cm_info *wlc_cm, uint val)
773 {
774 struct brcms_c_info *wlc = wlc_cm->wlc;
775
776 return brcms_c_valid_channel20(wlc->cmi, val) ||
777 (!wlc->bandlocked
778 && brcms_c_valid_channel20_in_band(wlc->cmi,
779 OTHERBANDUNIT(wlc), val));
780 }
781
782 /* JP, J1 - J10 are Japan ccodes */
brcms_c_japan_ccode(const char * ccode)783 static bool brcms_c_japan_ccode(const char *ccode)
784 {
785 return (ccode[0] == 'J' &&
786 (ccode[1] == 'P' || (ccode[1] >= '1' && ccode[1] <= '9')));
787 }
788
789 /* Returns true if currently set country is Japan or variant */
brcms_c_japan(struct brcms_c_info * wlc)790 static bool brcms_c_japan(struct brcms_c_info *wlc)
791 {
792 return brcms_c_japan_ccode(wlc->cmi->country_abbrev);
793 }
794
795 static void
brcms_c_channel_min_txpower_limits_with_local_constraint(struct brcms_cm_info * wlc_cm,struct txpwr_limits * txpwr,u8 local_constraint_qdbm)796 brcms_c_channel_min_txpower_limits_with_local_constraint(
797 struct brcms_cm_info *wlc_cm, struct txpwr_limits *txpwr,
798 u8 local_constraint_qdbm)
799 {
800 int j;
801
802 /* CCK Rates */
803 for (j = 0; j < WL_TX_POWER_CCK_NUM; j++)
804 txpwr->cck[j] = min(txpwr->cck[j], local_constraint_qdbm);
805
806 /* 20 MHz Legacy OFDM SISO */
807 for (j = 0; j < WL_TX_POWER_OFDM_NUM; j++)
808 txpwr->ofdm[j] = min(txpwr->ofdm[j], local_constraint_qdbm);
809
810 /* 20 MHz Legacy OFDM CDD */
811 for (j = 0; j < BRCMS_NUM_RATES_OFDM; j++)
812 txpwr->ofdm_cdd[j] =
813 min(txpwr->ofdm_cdd[j], local_constraint_qdbm);
814
815 /* 40 MHz Legacy OFDM SISO */
816 for (j = 0; j < BRCMS_NUM_RATES_OFDM; j++)
817 txpwr->ofdm_40_siso[j] =
818 min(txpwr->ofdm_40_siso[j], local_constraint_qdbm);
819
820 /* 40 MHz Legacy OFDM CDD */
821 for (j = 0; j < BRCMS_NUM_RATES_OFDM; j++)
822 txpwr->ofdm_40_cdd[j] =
823 min(txpwr->ofdm_40_cdd[j], local_constraint_qdbm);
824
825 /* 20MHz MCS 0-7 SISO */
826 for (j = 0; j < BRCMS_NUM_RATES_MCS_1_STREAM; j++)
827 txpwr->mcs_20_siso[j] =
828 min(txpwr->mcs_20_siso[j], local_constraint_qdbm);
829
830 /* 20MHz MCS 0-7 CDD */
831 for (j = 0; j < BRCMS_NUM_RATES_MCS_1_STREAM; j++)
832 txpwr->mcs_20_cdd[j] =
833 min(txpwr->mcs_20_cdd[j], local_constraint_qdbm);
834
835 /* 20MHz MCS 0-7 STBC */
836 for (j = 0; j < BRCMS_NUM_RATES_MCS_1_STREAM; j++)
837 txpwr->mcs_20_stbc[j] =
838 min(txpwr->mcs_20_stbc[j], local_constraint_qdbm);
839
840 /* 20MHz MCS 8-15 MIMO */
841 for (j = 0; j < BRCMS_NUM_RATES_MCS_2_STREAM; j++)
842 txpwr->mcs_20_mimo[j] =
843 min(txpwr->mcs_20_mimo[j], local_constraint_qdbm);
844
845 /* 40MHz MCS 0-7 SISO */
846 for (j = 0; j < BRCMS_NUM_RATES_MCS_1_STREAM; j++)
847 txpwr->mcs_40_siso[j] =
848 min(txpwr->mcs_40_siso[j], local_constraint_qdbm);
849
850 /* 40MHz MCS 0-7 CDD */
851 for (j = 0; j < BRCMS_NUM_RATES_MCS_1_STREAM; j++)
852 txpwr->mcs_40_cdd[j] =
853 min(txpwr->mcs_40_cdd[j], local_constraint_qdbm);
854
855 /* 40MHz MCS 0-7 STBC */
856 for (j = 0; j < BRCMS_NUM_RATES_MCS_1_STREAM; j++)
857 txpwr->mcs_40_stbc[j] =
858 min(txpwr->mcs_40_stbc[j], local_constraint_qdbm);
859
860 /* 40MHz MCS 8-15 MIMO */
861 for (j = 0; j < BRCMS_NUM_RATES_MCS_2_STREAM; j++)
862 txpwr->mcs_40_mimo[j] =
863 min(txpwr->mcs_40_mimo[j], local_constraint_qdbm);
864
865 /* 40MHz MCS 32 */
866 txpwr->mcs32 = min(txpwr->mcs32, local_constraint_qdbm);
867
868 }
869
870 /* Update the radio state (enable/disable) and tx power targets
871 * based on a new set of channel/regulatory information
872 */
brcms_c_channels_commit(struct brcms_cm_info * wlc_cm)873 static void brcms_c_channels_commit(struct brcms_cm_info *wlc_cm)
874 {
875 struct brcms_c_info *wlc = wlc_cm->wlc;
876 uint chan;
877 struct txpwr_limits txpwr;
878
879 /* search for the existence of any valid channel */
880 for (chan = 0; chan < MAXCHANNEL; chan++) {
881 if (brcms_c_valid_channel20_db(wlc->cmi, chan))
882 break;
883 }
884 if (chan == MAXCHANNEL)
885 chan = INVCHANNEL;
886
887 /*
888 * based on the channel search above, set or
889 * clear WL_RADIO_COUNTRY_DISABLE.
890 */
891 if (chan == INVCHANNEL) {
892 /*
893 * country/locale with no valid channels, set
894 * the radio disable bit
895 */
896 mboolset(wlc->pub->radio_disabled, WL_RADIO_COUNTRY_DISABLE);
897 wiphy_err(wlc->wiphy, "wl%d: %s: no valid channel for \"%s\" "
898 "nbands %d bandlocked %d\n", wlc->pub->unit,
899 __func__, wlc_cm->country_abbrev, wlc->pub->_nbands,
900 wlc->bandlocked);
901 } else if (mboolisset(wlc->pub->radio_disabled,
902 WL_RADIO_COUNTRY_DISABLE)) {
903 /*
904 * country/locale with valid channel, clear
905 * the radio disable bit
906 */
907 mboolclr(wlc->pub->radio_disabled, WL_RADIO_COUNTRY_DISABLE);
908 }
909
910 /*
911 * Now that the country abbreviation is set, if the radio supports 2G,
912 * then set channel 14 restrictions based on the new locale.
913 */
914 if (wlc->pub->_nbands > 1 || wlc->band->bandtype == BRCM_BAND_2G)
915 wlc_phy_chanspec_ch14_widefilter_set(wlc->band->pi,
916 brcms_c_japan(wlc) ? true :
917 false);
918
919 if (wlc->pub->up && chan != INVCHANNEL) {
920 brcms_c_channel_reg_limits(wlc_cm, wlc->chanspec, &txpwr);
921 brcms_c_channel_min_txpower_limits_with_local_constraint(wlc_cm,
922 &txpwr, BRCMS_TXPWR_MAX);
923 wlc_phy_txpower_limit_set(wlc->band->pi, &txpwr, wlc->chanspec);
924 }
925 }
926
927 static int
brcms_c_channels_init(struct brcms_cm_info * wlc_cm,const struct country_info * country)928 brcms_c_channels_init(struct brcms_cm_info *wlc_cm,
929 const struct country_info *country)
930 {
931 struct brcms_c_info *wlc = wlc_cm->wlc;
932 uint i, j;
933 struct brcms_band *band;
934 const struct locale_info *li;
935 struct brcms_chanvec sup_chan;
936 const struct locale_mimo_info *li_mimo;
937
938 band = wlc->band;
939 for (i = 0; i < wlc->pub->_nbands;
940 i++, band = wlc->bandstate[OTHERBANDUNIT(wlc)]) {
941
942 li = (band->bandtype == BRCM_BAND_5G) ?
943 brcms_c_get_locale_5g(country->locale_5G) :
944 brcms_c_get_locale_2g(country->locale_2G);
945 wlc_cm->bandstate[band->bandunit].locale_flags = li->flags;
946 li_mimo = (band->bandtype == BRCM_BAND_5G) ?
947 brcms_c_get_mimo_5g(country->locale_mimo_5G) :
948 brcms_c_get_mimo_2g(country->locale_mimo_2G);
949
950 /* merge the mimo non-mimo locale flags */
951 wlc_cm->bandstate[band->bandunit].locale_flags |=
952 li_mimo->flags;
953
954 wlc_cm->bandstate[band->bandunit].restricted_channels =
955 g_table_restricted_chan[li->restricted_channels];
956 wlc_cm->bandstate[band->bandunit].radar_channels =
957 g_table_radar_set[li->radar_channels];
958
959 /*
960 * set the channel availability, masking out the channels
961 * that may not be supported on this phy.
962 */
963 wlc_phy_chanspec_band_validch(band->pi, band->bandtype,
964 &sup_chan);
965 brcms_c_locale_get_channels(li,
966 &wlc_cm->bandstate[band->bandunit].
967 valid_channels);
968 for (j = 0; j < sizeof(struct brcms_chanvec); j++)
969 wlc_cm->bandstate[band->bandunit].valid_channels.
970 vec[j] &= sup_chan.vec[j];
971 }
972
973 brcms_c_quiet_channels_reset(wlc_cm);
974 brcms_c_channels_commit(wlc_cm);
975
976 return 0;
977 }
978
979 /*
980 * set the driver's current country and regulatory information
981 * using a country code as the source. Look up built in country
982 * information found with the country code.
983 */
984 static void
brcms_c_set_country_common(struct brcms_cm_info * wlc_cm,const char * country_abbrev,const char * ccode,uint regrev,const struct country_info * country)985 brcms_c_set_country_common(struct brcms_cm_info *wlc_cm,
986 const char *country_abbrev,
987 const char *ccode, uint regrev,
988 const struct country_info *country)
989 {
990 const struct locale_info *locale;
991 struct brcms_c_info *wlc = wlc_cm->wlc;
992 char prev_country_abbrev[BRCM_CNTRY_BUF_SZ];
993
994 /* save current country state */
995 wlc_cm->country = country;
996
997 memset(&prev_country_abbrev, 0, BRCM_CNTRY_BUF_SZ);
998 strncpy(prev_country_abbrev, wlc_cm->country_abbrev,
999 BRCM_CNTRY_BUF_SZ - 1);
1000
1001 strncpy(wlc_cm->country_abbrev, country_abbrev, BRCM_CNTRY_BUF_SZ - 1);
1002 strncpy(wlc_cm->ccode, ccode, BRCM_CNTRY_BUF_SZ - 1);
1003 wlc_cm->regrev = regrev;
1004
1005 if ((wlc->pub->_n_enab & SUPPORT_11N) !=
1006 wlc->protection->nmode_user)
1007 brcms_c_set_nmode(wlc);
1008
1009 brcms_c_stf_ss_update(wlc, wlc->bandstate[BAND_2G_INDEX]);
1010 brcms_c_stf_ss_update(wlc, wlc->bandstate[BAND_5G_INDEX]);
1011 /* set or restore gmode as required by regulatory */
1012 locale = brcms_c_get_locale_2g(country->locale_2G);
1013 if (locale && (locale->flags & BRCMS_NO_OFDM))
1014 brcms_c_set_gmode(wlc, GMODE_LEGACY_B, false);
1015 else
1016 brcms_c_set_gmode(wlc, wlc->protection->gmode_user, false);
1017
1018 brcms_c_channels_init(wlc_cm, country);
1019
1020 return;
1021 }
1022
1023 static int
brcms_c_set_countrycode_rev(struct brcms_cm_info * wlc_cm,const char * country_abbrev,const char * ccode,int regrev)1024 brcms_c_set_countrycode_rev(struct brcms_cm_info *wlc_cm,
1025 const char *country_abbrev,
1026 const char *ccode, int regrev)
1027 {
1028 const struct country_info *country;
1029 char mapped_ccode[BRCM_CNTRY_BUF_SZ];
1030 uint mapped_regrev;
1031
1032 /* if regrev is -1, lookup the mapped country code,
1033 * otherwise use the ccode and regrev directly
1034 */
1035 if (regrev == -1) {
1036 /*
1037 * map the country code to a built-in country
1038 * code, regrev, and country_info
1039 */
1040 country =
1041 brcms_c_countrycode_map(wlc_cm, ccode, mapped_ccode,
1042 &mapped_regrev);
1043 } else {
1044 /* find the matching built-in country definition */
1045 country = brcms_c_country_lookup_direct(ccode, regrev);
1046 strncpy(mapped_ccode, ccode, BRCM_CNTRY_BUF_SZ);
1047 mapped_regrev = regrev;
1048 }
1049
1050 if (country == NULL)
1051 return -EINVAL;
1052
1053 /* set the driver state for the country */
1054 brcms_c_set_country_common(wlc_cm, country_abbrev, mapped_ccode,
1055 mapped_regrev, country);
1056
1057 return 0;
1058 }
1059
1060 /*
1061 * set the driver's current country and regulatory information using
1062 * a country code as the source. Lookup built in country information
1063 * found with the country code.
1064 */
1065 static int
brcms_c_set_countrycode(struct brcms_cm_info * wlc_cm,const char * ccode)1066 brcms_c_set_countrycode(struct brcms_cm_info *wlc_cm, const char *ccode)
1067 {
1068 char country_abbrev[BRCM_CNTRY_BUF_SZ];
1069 strncpy(country_abbrev, ccode, BRCM_CNTRY_BUF_SZ);
1070 return brcms_c_set_countrycode_rev(wlc_cm, country_abbrev, ccode, -1);
1071 }
1072
brcms_c_channel_mgr_attach(struct brcms_c_info * wlc)1073 struct brcms_cm_info *brcms_c_channel_mgr_attach(struct brcms_c_info *wlc)
1074 {
1075 struct brcms_cm_info *wlc_cm;
1076 char country_abbrev[BRCM_CNTRY_BUF_SZ];
1077 const struct country_info *country;
1078 struct brcms_pub *pub = wlc->pub;
1079 char *ccode;
1080
1081 BCMMSG(wlc->wiphy, "wl%d\n", wlc->pub->unit);
1082
1083 wlc_cm = kzalloc(sizeof(struct brcms_cm_info), GFP_ATOMIC);
1084 if (wlc_cm == NULL)
1085 return NULL;
1086 wlc_cm->pub = pub;
1087 wlc_cm->wlc = wlc;
1088 wlc->cmi = wlc_cm;
1089
1090 /* store the country code for passing up as a regulatory hint */
1091 ccode = getvar(wlc->hw->sih, BRCMS_SROM_CCODE);
1092 if (ccode)
1093 strncpy(wlc->pub->srom_ccode, ccode, BRCM_CNTRY_BUF_SZ - 1);
1094
1095 /*
1096 * internal country information which must match
1097 * regulatory constraints in firmware
1098 */
1099 memset(country_abbrev, 0, BRCM_CNTRY_BUF_SZ);
1100 strncpy(country_abbrev, "X2", sizeof(country_abbrev) - 1);
1101 country = brcms_c_country_lookup(wlc, country_abbrev);
1102
1103 /* save default country for exiting 11d regulatory mode */
1104 strncpy(wlc->country_default, country_abbrev, BRCM_CNTRY_BUF_SZ - 1);
1105
1106 /* initialize autocountry_default to driver default */
1107 strncpy(wlc->autocountry_default, "X2", BRCM_CNTRY_BUF_SZ - 1);
1108
1109 brcms_c_set_countrycode(wlc_cm, country_abbrev);
1110
1111 return wlc_cm;
1112 }
1113
brcms_c_channel_mgr_detach(struct brcms_cm_info * wlc_cm)1114 void brcms_c_channel_mgr_detach(struct brcms_cm_info *wlc_cm)
1115 {
1116 kfree(wlc_cm);
1117 }
1118
1119 u8
brcms_c_channel_locale_flags_in_band(struct brcms_cm_info * wlc_cm,uint bandunit)1120 brcms_c_channel_locale_flags_in_band(struct brcms_cm_info *wlc_cm,
1121 uint bandunit)
1122 {
1123 return wlc_cm->bandstate[bandunit].locale_flags;
1124 }
1125
1126 static bool
brcms_c_quiet_chanspec(struct brcms_cm_info * wlc_cm,u16 chspec)1127 brcms_c_quiet_chanspec(struct brcms_cm_info *wlc_cm, u16 chspec)
1128 {
1129 return (wlc_cm->wlc->pub->_n_enab & SUPPORT_11N) &&
1130 CHSPEC_IS40(chspec) ?
1131 (isset(wlc_cm->quiet_channels.vec,
1132 lower_20_sb(CHSPEC_CHANNEL(chspec))) ||
1133 isset(wlc_cm->quiet_channels.vec,
1134 upper_20_sb(CHSPEC_CHANNEL(chspec)))) :
1135 isset(wlc_cm->quiet_channels.vec, CHSPEC_CHANNEL(chspec));
1136 }
1137
1138 void
brcms_c_channel_set_chanspec(struct brcms_cm_info * wlc_cm,u16 chanspec,u8 local_constraint_qdbm)1139 brcms_c_channel_set_chanspec(struct brcms_cm_info *wlc_cm, u16 chanspec,
1140 u8 local_constraint_qdbm)
1141 {
1142 struct brcms_c_info *wlc = wlc_cm->wlc;
1143 struct txpwr_limits txpwr;
1144
1145 brcms_c_channel_reg_limits(wlc_cm, chanspec, &txpwr);
1146
1147 brcms_c_channel_min_txpower_limits_with_local_constraint(
1148 wlc_cm, &txpwr, local_constraint_qdbm
1149 );
1150
1151 brcms_b_set_chanspec(wlc->hw, chanspec,
1152 (brcms_c_quiet_chanspec(wlc_cm, chanspec) != 0),
1153 &txpwr);
1154 }
1155
1156 void
brcms_c_channel_reg_limits(struct brcms_cm_info * wlc_cm,u16 chanspec,struct txpwr_limits * txpwr)1157 brcms_c_channel_reg_limits(struct brcms_cm_info *wlc_cm, u16 chanspec,
1158 struct txpwr_limits *txpwr)
1159 {
1160 struct brcms_c_info *wlc = wlc_cm->wlc;
1161 uint i;
1162 uint chan;
1163 int maxpwr;
1164 int delta;
1165 const struct country_info *country;
1166 struct brcms_band *band;
1167 const struct locale_info *li;
1168 int conducted_max = BRCMS_TXPWR_MAX;
1169 int conducted_ofdm_max = BRCMS_TXPWR_MAX;
1170 const struct locale_mimo_info *li_mimo;
1171 int maxpwr20, maxpwr40;
1172 int maxpwr_idx;
1173 uint j;
1174
1175 memset(txpwr, 0, sizeof(struct txpwr_limits));
1176
1177 if (!brcms_c_valid_chanspec_db(wlc_cm, chanspec)) {
1178 country = brcms_c_country_lookup(wlc, wlc->autocountry_default);
1179 if (country == NULL)
1180 return;
1181 } else {
1182 country = wlc_cm->country;
1183 }
1184
1185 chan = CHSPEC_CHANNEL(chanspec);
1186 band = wlc->bandstate[chspec_bandunit(chanspec)];
1187 li = (band->bandtype == BRCM_BAND_5G) ?
1188 brcms_c_get_locale_5g(country->locale_5G) :
1189 brcms_c_get_locale_2g(country->locale_2G);
1190
1191 li_mimo = (band->bandtype == BRCM_BAND_5G) ?
1192 brcms_c_get_mimo_5g(country->locale_mimo_5G) :
1193 brcms_c_get_mimo_2g(country->locale_mimo_2G);
1194
1195 if (li->flags & BRCMS_EIRP) {
1196 delta = band->antgain;
1197 } else {
1198 delta = 0;
1199 if (band->antgain > QDB(6))
1200 delta = band->antgain - QDB(6); /* Excess over 6 dB */
1201 }
1202
1203 if (li == &locale_i) {
1204 conducted_max = QDB(22);
1205 conducted_ofdm_max = QDB(22);
1206 }
1207
1208 /* CCK txpwr limits for 2.4G band */
1209 if (band->bandtype == BRCM_BAND_2G) {
1210 maxpwr = li->maxpwr[CHANNEL_POWER_IDX_2G_CCK(chan)];
1211
1212 maxpwr = maxpwr - delta;
1213 maxpwr = max(maxpwr, 0);
1214 maxpwr = min(maxpwr, conducted_max);
1215
1216 for (i = 0; i < BRCMS_NUM_RATES_CCK; i++)
1217 txpwr->cck[i] = (u8) maxpwr;
1218 }
1219
1220 /* OFDM txpwr limits for 2.4G or 5G bands */
1221 if (band->bandtype == BRCM_BAND_2G)
1222 maxpwr = li->maxpwr[CHANNEL_POWER_IDX_2G_OFDM(chan)];
1223 else
1224 maxpwr = li->maxpwr[CHANNEL_POWER_IDX_5G(chan)];
1225
1226 maxpwr = maxpwr - delta;
1227 maxpwr = max(maxpwr, 0);
1228 maxpwr = min(maxpwr, conducted_ofdm_max);
1229
1230 /* Keep OFDM lmit below CCK limit */
1231 if (band->bandtype == BRCM_BAND_2G)
1232 maxpwr = min_t(int, maxpwr, txpwr->cck[0]);
1233
1234 for (i = 0; i < BRCMS_NUM_RATES_OFDM; i++)
1235 txpwr->ofdm[i] = (u8) maxpwr;
1236
1237 for (i = 0; i < BRCMS_NUM_RATES_OFDM; i++) {
1238 /*
1239 * OFDM 40 MHz SISO has the same power as the corresponding
1240 * MCS0-7 rate unless overriden by the locale specific code.
1241 * We set this value to 0 as a flag (presumably 0 dBm isn't
1242 * a possibility) and then copy the MCS0-7 value to the 40 MHz
1243 * value if it wasn't explicitly set.
1244 */
1245 txpwr->ofdm_40_siso[i] = 0;
1246
1247 txpwr->ofdm_cdd[i] = (u8) maxpwr;
1248
1249 txpwr->ofdm_40_cdd[i] = 0;
1250 }
1251
1252 /* MIMO/HT specific limits */
1253 if (li_mimo->flags & BRCMS_EIRP) {
1254 delta = band->antgain;
1255 } else {
1256 delta = 0;
1257 if (band->antgain > QDB(6))
1258 delta = band->antgain - QDB(6); /* Excess over 6 dB */
1259 }
1260
1261 if (band->bandtype == BRCM_BAND_2G)
1262 maxpwr_idx = (chan - 1);
1263 else
1264 maxpwr_idx = CHANNEL_POWER_IDX_5G(chan);
1265
1266 maxpwr20 = li_mimo->maxpwr20[maxpwr_idx];
1267 maxpwr40 = li_mimo->maxpwr40[maxpwr_idx];
1268
1269 maxpwr20 = maxpwr20 - delta;
1270 maxpwr20 = max(maxpwr20, 0);
1271 maxpwr40 = maxpwr40 - delta;
1272 maxpwr40 = max(maxpwr40, 0);
1273
1274 /* Fill in the MCS 0-7 (SISO) rates */
1275 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1276
1277 /*
1278 * 20 MHz has the same power as the corresponding OFDM rate
1279 * unless overriden by the locale specific code.
1280 */
1281 txpwr->mcs_20_siso[i] = txpwr->ofdm[i];
1282 txpwr->mcs_40_siso[i] = 0;
1283 }
1284
1285 /* Fill in the MCS 0-7 CDD rates */
1286 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1287 txpwr->mcs_20_cdd[i] = (u8) maxpwr20;
1288 txpwr->mcs_40_cdd[i] = (u8) maxpwr40;
1289 }
1290
1291 /*
1292 * These locales have SISO expressed in the
1293 * table and override CDD later
1294 */
1295 if (li_mimo == &locale_bn) {
1296 if (li_mimo == &locale_bn) {
1297 maxpwr20 = QDB(16);
1298 maxpwr40 = 0;
1299
1300 if (chan >= 3 && chan <= 11)
1301 maxpwr40 = QDB(16);
1302 }
1303
1304 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1305 txpwr->mcs_20_siso[i] = (u8) maxpwr20;
1306 txpwr->mcs_40_siso[i] = (u8) maxpwr40;
1307 }
1308 }
1309
1310 /* Fill in the MCS 0-7 STBC rates */
1311 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1312 txpwr->mcs_20_stbc[i] = 0;
1313 txpwr->mcs_40_stbc[i] = 0;
1314 }
1315
1316 /* Fill in the MCS 8-15 SDM rates */
1317 for (i = 0; i < BRCMS_NUM_RATES_MCS_2_STREAM; i++) {
1318 txpwr->mcs_20_mimo[i] = (u8) maxpwr20;
1319 txpwr->mcs_40_mimo[i] = (u8) maxpwr40;
1320 }
1321
1322 /* Fill in MCS32 */
1323 txpwr->mcs32 = (u8) maxpwr40;
1324
1325 for (i = 0, j = 0; i < BRCMS_NUM_RATES_OFDM; i++, j++) {
1326 if (txpwr->ofdm_40_cdd[i] == 0)
1327 txpwr->ofdm_40_cdd[i] = txpwr->mcs_40_cdd[j];
1328 if (i == 0) {
1329 i = i + 1;
1330 if (txpwr->ofdm_40_cdd[i] == 0)
1331 txpwr->ofdm_40_cdd[i] = txpwr->mcs_40_cdd[j];
1332 }
1333 }
1334
1335 /*
1336 * Copy the 40 MHZ MCS 0-7 CDD value to the 40 MHZ MCS 0-7 SISO
1337 * value if it wasn't provided explicitly.
1338 */
1339 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1340 if (txpwr->mcs_40_siso[i] == 0)
1341 txpwr->mcs_40_siso[i] = txpwr->mcs_40_cdd[i];
1342 }
1343
1344 for (i = 0, j = 0; i < BRCMS_NUM_RATES_OFDM; i++, j++) {
1345 if (txpwr->ofdm_40_siso[i] == 0)
1346 txpwr->ofdm_40_siso[i] = txpwr->mcs_40_siso[j];
1347 if (i == 0) {
1348 i = i + 1;
1349 if (txpwr->ofdm_40_siso[i] == 0)
1350 txpwr->ofdm_40_siso[i] = txpwr->mcs_40_siso[j];
1351 }
1352 }
1353
1354 /*
1355 * Copy the 20 and 40 MHz MCS0-7 CDD values to the corresponding
1356 * STBC values if they weren't provided explicitly.
1357 */
1358 for (i = 0; i < BRCMS_NUM_RATES_MCS_1_STREAM; i++) {
1359 if (txpwr->mcs_20_stbc[i] == 0)
1360 txpwr->mcs_20_stbc[i] = txpwr->mcs_20_cdd[i];
1361
1362 if (txpwr->mcs_40_stbc[i] == 0)
1363 txpwr->mcs_40_stbc[i] = txpwr->mcs_40_cdd[i];
1364 }
1365
1366 return;
1367 }
1368
1369 /*
1370 * Verify the chanspec is using a legal set of parameters, i.e. that the
1371 * chanspec specified a band, bw, ctl_sb and channel and that the
1372 * combination could be legal given any set of circumstances.
1373 * RETURNS: true is the chanspec is malformed, false if it looks good.
1374 */
brcms_c_chspec_malformed(u16 chanspec)1375 static bool brcms_c_chspec_malformed(u16 chanspec)
1376 {
1377 /* must be 2G or 5G band */
1378 if (!CHSPEC_IS5G(chanspec) && !CHSPEC_IS2G(chanspec))
1379 return true;
1380 /* must be 20 or 40 bandwidth */
1381 if (!CHSPEC_IS40(chanspec) && !CHSPEC_IS20(chanspec))
1382 return true;
1383
1384 /* 20MHZ b/w must have no ctl sb, 40 must have a ctl sb */
1385 if (CHSPEC_IS20(chanspec)) {
1386 if (!CHSPEC_SB_NONE(chanspec))
1387 return true;
1388 } else if (!CHSPEC_SB_UPPER(chanspec) && !CHSPEC_SB_LOWER(chanspec)) {
1389 return true;
1390 }
1391
1392 return false;
1393 }
1394
1395 /*
1396 * Validate the chanspec for this locale, for 40MHZ we need to also
1397 * check that the sidebands are valid 20MZH channels in this locale
1398 * and they are also a legal HT combination
1399 */
1400 static bool
brcms_c_valid_chanspec_ext(struct brcms_cm_info * wlc_cm,u16 chspec,bool dualband)1401 brcms_c_valid_chanspec_ext(struct brcms_cm_info *wlc_cm, u16 chspec,
1402 bool dualband)
1403 {
1404 struct brcms_c_info *wlc = wlc_cm->wlc;
1405 u8 channel = CHSPEC_CHANNEL(chspec);
1406
1407 /* check the chanspec */
1408 if (brcms_c_chspec_malformed(chspec)) {
1409 wiphy_err(wlc->wiphy, "wl%d: malformed chanspec 0x%x\n",
1410 wlc->pub->unit, chspec);
1411 return false;
1412 }
1413
1414 if (CHANNEL_BANDUNIT(wlc_cm->wlc, channel) !=
1415 chspec_bandunit(chspec))
1416 return false;
1417
1418 /* Check a 20Mhz channel */
1419 if (CHSPEC_IS20(chspec)) {
1420 if (dualband)
1421 return brcms_c_valid_channel20_db(wlc_cm->wlc->cmi,
1422 channel);
1423 else
1424 return brcms_c_valid_channel20(wlc_cm->wlc->cmi,
1425 channel);
1426 }
1427 #ifdef SUPPORT_40MHZ
1428 /*
1429 * We know we are now checking a 40MHZ channel, so we should
1430 * only be here for NPHYS
1431 */
1432 if (BRCMS_ISNPHY(wlc->band) || BRCMS_ISSSLPNPHY(wlc->band)) {
1433 u8 upper_sideband = 0, idx;
1434 u8 num_ch20_entries =
1435 sizeof(chan20_info) / sizeof(struct chan20_info);
1436
1437 if (!VALID_40CHANSPEC_IN_BAND(wlc, chspec_bandunit(chspec)))
1438 return false;
1439
1440 if (dualband) {
1441 if (!brcms_c_valid_channel20_db(wlc->cmi,
1442 lower_20_sb(channel)) ||
1443 !brcms_c_valid_channel20_db(wlc->cmi,
1444 upper_20_sb(channel)))
1445 return false;
1446 } else {
1447 if (!brcms_c_valid_channel20(wlc->cmi,
1448 lower_20_sb(channel)) ||
1449 !brcms_c_valid_channel20(wlc->cmi,
1450 upper_20_sb(channel)))
1451 return false;
1452 }
1453
1454 /* find the lower sideband info in the sideband array */
1455 for (idx = 0; idx < num_ch20_entries; idx++) {
1456 if (chan20_info[idx].sb == lower_20_sb(channel))
1457 upper_sideband = chan20_info[idx].adj_sbs;
1458 }
1459 /* check that the lower sideband allows an upper sideband */
1460 if ((upper_sideband & (CH_UPPER_SB | CH_EWA_VALID)) ==
1461 (CH_UPPER_SB | CH_EWA_VALID))
1462 return true;
1463 return false;
1464 }
1465 #endif /* 40 MHZ */
1466
1467 return false;
1468 }
1469
brcms_c_valid_chanspec_db(struct brcms_cm_info * wlc_cm,u16 chspec)1470 bool brcms_c_valid_chanspec_db(struct brcms_cm_info *wlc_cm, u16 chspec)
1471 {
1472 return brcms_c_valid_chanspec_ext(wlc_cm, chspec, true);
1473 }
1474