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staging: brcm80211: fix build with BCMDBG unset.
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / staging / brcm80211 / brcmsmac / wlc_channel.c
blob2e30d92230526b5f8d6caf2829f68bbac5ad1d96
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/kernel.h>
18 #include <linux/string.h>
19 #include <bcmdefs.h>
20 #include <wlc_cfg.h>
21 #include <osl.h>
22 #include <linux/module.h>
23 #include <linux/pci.h>
24 #include <bcmutils.h>
25 #include <siutils.h>
26 #include <sbhndpio.h>
27 #include <sbhnddma.h>
28 #include <wlioctl.h>
29 #include <wlc_pub.h>
30 #include <wlc_key.h>
31 #include <wlc_event.h>
32 #include <wlc_mac80211.h>
33 #include <wlc_bmac.h>
34 #include <wlc_stf.h>
35 #include <wlc_channel.h>
36 #include <wl_dbg.h>
37
38 typedef struct wlc_cm_band {
39 u8 locale_flags; /* locale_info_t flags */
40 chanvec_t valid_channels; /* List of valid channels in the country */
41 const chanvec_t *restricted_channels; /* List of restricted use channels */
42 const chanvec_t *radar_channels; /* List of radar sensitive channels */
43 u8 PAD[8];
44 } wlc_cm_band_t;
45
46 struct wlc_cm_info {
47 struct wlc_pub *pub;
48 struct wlc_info *wlc;
49 char srom_ccode[WLC_CNTRY_BUF_SZ]; /* Country Code in SROM */
50 uint srom_regrev; /* Regulatory Rev for the SROM ccode */
51 const country_info_t *country; /* current country def */
52 char ccode[WLC_CNTRY_BUF_SZ]; /* current internal Country Code */
53 uint regrev; /* current Regulatory Revision */
54 char country_abbrev[WLC_CNTRY_BUF_SZ]; /* current advertised ccode */
55 wlc_cm_band_t bandstate[MAXBANDS]; /* per-band state (one per phy/radio) */
56 /* quiet channels currently for radar sensitivity or 11h support */
57 chanvec_t quiet_channels; /* channels on which we cannot transmit */
58 };
59
60 static int wlc_channels_init(wlc_cm_info_t *wlc_cm,
61 const country_info_t *country);
62 static void wlc_set_country_common(wlc_cm_info_t *wlc_cm,
63 const char *country_abbrev,
64 const char *ccode, uint regrev,
65 const country_info_t *country);
66 static int wlc_country_aggregate_map(wlc_cm_info_t *wlc_cm, const char *ccode,
67 char *mapped_ccode, uint *mapped_regrev);
68 static const country_info_t *wlc_country_lookup_direct(const char *ccode,
69 uint regrev);
70 static const country_info_t *wlc_countrycode_map(wlc_cm_info_t *wlc_cm,
71 const char *ccode,
72 char *mapped_ccode,
73 uint *mapped_regrev);
74 static void wlc_channels_commit(wlc_cm_info_t *wlc_cm);
75 static bool wlc_japan_ccode(const char *ccode);
76 static void wlc_channel_min_txpower_limits_with_local_constraint(wlc_cm_info_t *
77 wlc_cm,
78 struct
79 txpwr_limits
80 *txpwr,
81 u8
82 local_constraint_qdbm);
83 void wlc_locale_add_channels(chanvec_t *target, const chanvec_t *channels);
84 static const locale_mimo_info_t *wlc_get_mimo_2g(u8 locale_idx);
85 static const locale_mimo_info_t *wlc_get_mimo_5g(u8 locale_idx);
86
87 /* QDB() macro takes a dB value and converts to a quarter dB value */
88 #ifdef QDB
89 #undef QDB
90 #endif
91 #define QDB(n) ((n) * WLC_TXPWR_DB_FACTOR)
92
93 /* Regulatory Matrix Spreadsheet (CLM) MIMO v3.7.9 */
94
95 /*
96 * Some common channel sets
97 */
98
99 /* No channels */
100 static const chanvec_t chanvec_none = {
101 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
102 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
103 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
104 0x00, 0x00, 0x00, 0x00}
105 };
106
107 /* All 2.4 GHz HW channels */
108 const chanvec_t chanvec_all_2G = {
109 {0xfe, 0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
110 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
111 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
112 0x00, 0x00, 0x00, 0x00}
113 };
114
115 /* All 5 GHz HW channels */
116 const chanvec_t chanvec_all_5G = {
117 {0x00, 0x00, 0x00, 0x00, 0x54, 0x55, 0x11, 0x11,
118 0x01, 0x00, 0x00, 0x00, 0x10, 0x11, 0x11, 0x11,
119 0x11, 0x11, 0x20, 0x22, 0x22, 0x00, 0x00, 0x11,
120 0x11, 0x11, 0x11, 0x01}
121 };
122
123 /*
124 * Radar channel sets
125 */
126
127 /* No radar */
128 #define radar_set_none chanvec_none
129
130 static const chanvec_t radar_set1 = { /* Channels 52 - 64, 100 - 140 */
131 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x11, /* 52 - 60 */
132 0x01, 0x00, 0x00, 0x00, 0x10, 0x11, 0x11, 0x11, /* 64, 100 - 124 */
133 0x11, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 128 - 140 */
134 0x00, 0x00, 0x00, 0x00}
135 };
136
137 /*
138 * Restricted channel sets
139 */
140
141 #define restricted_set_none chanvec_none
142
143 /* Channels 34, 38, 42, 46 */
144 static const chanvec_t restricted_set_japan_legacy = {
145 {0x00, 0x00, 0x00, 0x00, 0x44, 0x44, 0x00, 0x00,
146 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
147 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
148 0x00, 0x00, 0x00, 0x00}
149 };
150
151 /* Channels 12, 13 */
152 static const chanvec_t restricted_set_2g_short = {
153 {0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
154 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
155 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
156 0x00, 0x00, 0x00, 0x00}
157 };
158
159 /* Channel 165 */
160 static const chanvec_t restricted_chan_165 = {
161 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
162 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
163 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00,
164 0x00, 0x00, 0x00, 0x00}
165 };
166
167 /* Channels 36 - 48 & 149 - 165 */
168 static const chanvec_t restricted_low_hi = {
169 {0x00, 0x00, 0x00, 0x00, 0x10, 0x11, 0x01, 0x00,
170 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
171 0x00, 0x00, 0x20, 0x22, 0x22, 0x00, 0x00, 0x00,
172 0x00, 0x00, 0x00, 0x00}
173 };
174
175 /* Channels 12 - 14 */
176 static const chanvec_t restricted_set_12_13_14 = {
177 {0x00, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
178 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
179 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
180 0x00, 0x00, 0x00, 0x00}
181 };
182
183 #define LOCALE_CHAN_01_11 (1<<0)
184 #define LOCALE_CHAN_12_13 (1<<1)
185 #define LOCALE_CHAN_14 (1<<2)
186 #define LOCALE_SET_5G_LOW_JP1 (1<<3) /* 34-48, step 2 */
187 #define LOCALE_SET_5G_LOW_JP2 (1<<4) /* 34-46, step 4 */
188 #define LOCALE_SET_5G_LOW1 (1<<5) /* 36-48, step 4 */
189 #define LOCALE_SET_5G_LOW2 (1<<6) /* 52 */
190 #define LOCALE_SET_5G_LOW3 (1<<7) /* 56-64, step 4 */
191 #define LOCALE_SET_5G_MID1 (1<<8) /* 100-116, step 4 */
192 #define LOCALE_SET_5G_MID2 (1<<9) /* 120-124, step 4 */
193 #define LOCALE_SET_5G_MID3 (1<<10) /* 128 */
194 #define LOCALE_SET_5G_HIGH1 (1<<11) /* 132-140, step 4 */
195 #define LOCALE_SET_5G_HIGH2 (1<<12) /* 149-161, step 4 */
196 #define LOCALE_SET_5G_HIGH3 (1<<13) /* 165 */
197 #define LOCALE_CHAN_52_140_ALL (1<<14)
198 #define LOCALE_SET_5G_HIGH4 (1<<15) /* 184-216 */
199
200 #define LOCALE_CHAN_36_64 (LOCALE_SET_5G_LOW1 | LOCALE_SET_5G_LOW2 | LOCALE_SET_5G_LOW3)
201 #define LOCALE_CHAN_52_64 (LOCALE_SET_5G_LOW2 | LOCALE_SET_5G_LOW3)
202 #define LOCALE_CHAN_100_124 (LOCALE_SET_5G_MID1 | LOCALE_SET_5G_MID2)
203 #define LOCALE_CHAN_100_140 \
204 (LOCALE_SET_5G_MID1 | LOCALE_SET_5G_MID2 | LOCALE_SET_5G_MID3 | LOCALE_SET_5G_HIGH1)
205 #define LOCALE_CHAN_149_165 (LOCALE_SET_5G_HIGH2 | LOCALE_SET_5G_HIGH3)
206 #define LOCALE_CHAN_184_216 LOCALE_SET_5G_HIGH4
207
208 #define LOCALE_CHAN_01_14 (LOCALE_CHAN_01_11 | LOCALE_CHAN_12_13 | LOCALE_CHAN_14)
209
210 #define LOCALE_RADAR_SET_NONE 0
211 #define LOCALE_RADAR_SET_1 1
212
213 #define LOCALE_RESTRICTED_NONE 0
214 #define LOCALE_RESTRICTED_SET_2G_SHORT 1
215 #define LOCALE_RESTRICTED_CHAN_165 2
216 #define LOCALE_CHAN_ALL_5G 3
217 #define LOCALE_RESTRICTED_JAPAN_LEGACY 4
218 #define LOCALE_RESTRICTED_11D_2G 5
219 #define LOCALE_RESTRICTED_11D_5G 6
220 #define LOCALE_RESTRICTED_LOW_HI 7
221 #define LOCALE_RESTRICTED_12_13_14 8
222
223 /* global memory to provide working buffer for expanded locale */
224
225 static const chanvec_t *g_table_radar_set[] = {
226 &chanvec_none,
227 &radar_set1
228 };
229
230 static const chanvec_t *g_table_restricted_chan[] = {
231 &chanvec_none, /* restricted_set_none */
232 &restricted_set_2g_short,
233 &restricted_chan_165,
234 &chanvec_all_5G,
235 &restricted_set_japan_legacy,
236 &chanvec_all_2G, /* restricted_set_11d_2G */
237 &chanvec_all_5G, /* restricted_set_11d_5G */
238 &restricted_low_hi,
239 &restricted_set_12_13_14
240 };
241
242 static const chanvec_t locale_2g_01_11 = {
243 {0xfe, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
244 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
245 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
246 0x00, 0x00, 0x00, 0x00}
247 };
248
249 static const chanvec_t locale_2g_12_13 = {
250 {0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
251 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
252 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
253 0x00, 0x00, 0x00, 0x00}
254 };
255
256 static const chanvec_t locale_2g_14 = {
257 {0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
258 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
259 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
260 0x00, 0x00, 0x00, 0x00}
261 };
262
263 static const chanvec_t locale_5g_LOW_JP1 = {
264 {0x00, 0x00, 0x00, 0x00, 0x54, 0x55, 0x01, 0x00,
265 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
266 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
267 0x00, 0x00, 0x00, 0x00}
268 };
269
270 static const chanvec_t locale_5g_LOW_JP2 = {
271 {0x00, 0x00, 0x00, 0x00, 0x44, 0x44, 0x00, 0x00,
272 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
273 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
274 0x00, 0x00, 0x00, 0x00}
275 };
276
277 static const chanvec_t locale_5g_LOW1 = {
278 {0x00, 0x00, 0x00, 0x00, 0x10, 0x11, 0x01, 0x00,
279 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
280 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
281 0x00, 0x00, 0x00, 0x00}
282 };
283
284 static const chanvec_t locale_5g_LOW2 = {
285 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
286 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
287 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
288 0x00, 0x00, 0x00, 0x00}
289 };
290
291 static const chanvec_t locale_5g_LOW3 = {
292 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11,
293 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
294 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
295 0x00, 0x00, 0x00, 0x00}
296 };
297
298 static const chanvec_t locale_5g_MID1 = {
299 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
300 0x00, 0x00, 0x00, 0x00, 0x10, 0x11, 0x11, 0x00,
301 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
302 0x00, 0x00, 0x00, 0x00}
303 };
304
305 static const chanvec_t locale_5g_MID2 = {
306 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
307 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11,
308 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
309 0x00, 0x00, 0x00, 0x00}
310 };
311
312 static const chanvec_t locale_5g_MID3 = {
313 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
314 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
315 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
316 0x00, 0x00, 0x00, 0x00}
317 };
318
319 static const chanvec_t locale_5g_HIGH1 = {
320 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
321 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
322 0x10, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
323 0x00, 0x00, 0x00, 0x00}
324 };
325
326 static const chanvec_t locale_5g_HIGH2 = {
327 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
328 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
329 0x00, 0x00, 0x20, 0x22, 0x02, 0x00, 0x00, 0x00,
330 0x00, 0x00, 0x00, 0x00}
331 };
332
333 static const chanvec_t locale_5g_HIGH3 = {
334 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
335 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
336 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00,
337 0x00, 0x00, 0x00, 0x00}
338 };
339
340 static const chanvec_t locale_5g_52_140_ALL = {
341 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x11,
342 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11,
343 0x11, 0x11, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00,
344 0x00, 0x00, 0x00, 0x00}
345 };
346
347 static const chanvec_t locale_5g_HIGH4 = {
348 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
349 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
350 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11,
351 0x11, 0x11, 0x11, 0x11}
352 };
353
354 static const chanvec_t *g_table_locale_base[] = {
355 &locale_2g_01_11,
356 &locale_2g_12_13,
357 &locale_2g_14,
358 &locale_5g_LOW_JP1,
359 &locale_5g_LOW_JP2,
360 &locale_5g_LOW1,
361 &locale_5g_LOW2,
362 &locale_5g_LOW3,
363 &locale_5g_MID1,
364 &locale_5g_MID2,
365 &locale_5g_MID3,
366 &locale_5g_HIGH1,
367 &locale_5g_HIGH2,
368 &locale_5g_HIGH3,
369 &locale_5g_52_140_ALL,
370 &locale_5g_HIGH4
371 };
372
373 void wlc_locale_add_channels(chanvec_t *target, const chanvec_t *channels)
374 {
375 u8 i;
376 for (i = 0; i < sizeof(chanvec_t); i++) {
377 target->vec[i] |= channels->vec[i];
378 }
379 }
380
381 void wlc_locale_get_channels(const locale_info_t *locale, chanvec_t *channels)
382 {
383 u8 i;
384
385 memset(channels, 0, sizeof(chanvec_t));
386
387 for (i = 0; i < ARRAY_SIZE(g_table_locale_base); i++) {
388 if (locale->valid_channels & (1 << i)) {
389 wlc_locale_add_channels(channels,
390 g_table_locale_base[i]);
391 }
392 }
393 }
394
395 /*
396 * Locale Definitions - 2.4 GHz
397 */
398 static const locale_info_t locale_i = { /* locale i. channel 1 - 13 */
399 LOCALE_CHAN_01_11 | LOCALE_CHAN_12_13,
400 LOCALE_RADAR_SET_NONE,
401 LOCALE_RESTRICTED_SET_2G_SHORT,
402 {QDB(19), QDB(19), QDB(19),
403 QDB(19), QDB(19), QDB(19)},
404 {20, 20, 20, 0},
405 WLC_EIRP
406 };
407
408 /*
409 * Locale Definitions - 5 GHz
410 */
411 static const locale_info_t locale_11 = {
412 /* locale 11. channel 36 - 48, 52 - 64, 100 - 140, 149 - 165 */
413 LOCALE_CHAN_36_64 | LOCALE_CHAN_100_140 | LOCALE_CHAN_149_165,
414 LOCALE_RADAR_SET_1,
415 LOCALE_RESTRICTED_NONE,
416 {QDB(21), QDB(21), QDB(21), QDB(21), QDB(21)},
417 {23, 23, 23, 30, 30},
418 WLC_EIRP | WLC_DFS_EU
419 };
420
421 #define LOCALE_2G_IDX_i 0
422 static const locale_info_t *g_locale_2g_table[] = {
423 &locale_i
424 };
425
426 #define LOCALE_5G_IDX_11 0
427 static const locale_info_t *g_locale_5g_table[] = {
428 &locale_11
429 };
430
431 /*
432 * MIMO Locale Definitions - 2.4 GHz
433 */
434 static const locale_mimo_info_t locale_bn = {
435 {QDB(13), QDB(13), QDB(13), QDB(13), QDB(13),
436 QDB(13), QDB(13), QDB(13), QDB(13), QDB(13),
437 QDB(13), QDB(13), QDB(13)},
438 {0, 0, QDB(13), QDB(13), QDB(13),
439 QDB(13), QDB(13), QDB(13), QDB(13), QDB(13),
440 QDB(13), 0, 0},
441 0
442 };
443
444 /* locale mimo 2g indexes */
445 #define LOCALE_MIMO_IDX_bn 0
446
447 static const locale_mimo_info_t *g_mimo_2g_table[] = {
448 &locale_bn
449 };
450
451 /*
452 * MIMO Locale Definitions - 5 GHz
453 */
454 static const locale_mimo_info_t locale_11n = {
455 { /* 12.5 dBm */ 50, 50, 50, QDB(15), QDB(15)},
456 {QDB(14), QDB(15), QDB(15), QDB(15), QDB(15)},
457 0
458 };
459
460 #define LOCALE_MIMO_IDX_11n 0
461 static const locale_mimo_info_t *g_mimo_5g_table[] = {
462 &locale_11n
463 };
464
465 #ifdef LC
466 #undef LC
467 #endif
468 #define LC(id) LOCALE_MIMO_IDX_ ## id
469
470 #ifdef LC_2G
471 #undef LC_2G
472 #endif
473 #define LC_2G(id) LOCALE_2G_IDX_ ## id
474
475 #ifdef LC_5G
476 #undef LC_5G
477 #endif
478 #define LC_5G(id) LOCALE_5G_IDX_ ## id
479
480 #define LOCALES(band2, band5, mimo2, mimo5) {LC_2G(band2), LC_5G(band5), LC(mimo2), LC(mimo5)}
481
482 static const struct {
483 char abbrev[WLC_CNTRY_BUF_SZ]; /* country abbreviation */
484 country_info_t country;
485 } cntry_locales[] = {
486 {
487 "X2", LOCALES(i, 11, bn, 11n)}, /* Worldwide RoW 2 */
488 };
489
490 #ifdef SUPPORT_40MHZ
491 /* 20MHz channel info for 40MHz pairing support */
492 struct chan20_info {
493 u8 sb;
494 u8 adj_sbs;
495 };
496
497 /* indicates adjacent channels that are allowed for a 40 Mhz channel and
498 * those that permitted by the HT
499 */
500 struct chan20_info chan20_info[] = {
501 /* 11b/11g */
502 /* 0 */ {1, (CH_UPPER_SB | CH_EWA_VALID)},
503 /* 1 */ {2, (CH_UPPER_SB | CH_EWA_VALID)},
504 /* 2 */ {3, (CH_UPPER_SB | CH_EWA_VALID)},
505 /* 3 */ {4, (CH_UPPER_SB | CH_EWA_VALID)},
506 /* 4 */ {5, (CH_UPPER_SB | CH_LOWER_SB | CH_EWA_VALID)},
507 /* 5 */ {6, (CH_UPPER_SB | CH_LOWER_SB | CH_EWA_VALID)},
508 /* 6 */ {7, (CH_UPPER_SB | CH_LOWER_SB | CH_EWA_VALID)},
509 /* 7 */ {8, (CH_UPPER_SB | CH_LOWER_SB | CH_EWA_VALID)},
510 /* 8 */ {9, (CH_UPPER_SB | CH_LOWER_SB | CH_EWA_VALID)},
511 /* 9 */ {10, (CH_LOWER_SB | CH_EWA_VALID)},
512 /* 10 */ {11, (CH_LOWER_SB | CH_EWA_VALID)},
513 /* 11 */ {12, (CH_LOWER_SB)},
514 /* 12 */ {13, (CH_LOWER_SB)},
515 /* 13 */ {14, (CH_LOWER_SB)},
516
517 /* 11a japan high */
518 /* 14 */ {34, (CH_UPPER_SB)},
519 /* 15 */ {38, (CH_LOWER_SB)},
520 /* 16 */ {42, (CH_LOWER_SB)},
521 /* 17 */ {46, (CH_LOWER_SB)},
522
523 /* 11a usa low */
524 /* 18 */ {36, (CH_UPPER_SB | CH_EWA_VALID)},
525 /* 19 */ {40, (CH_LOWER_SB | CH_EWA_VALID)},
526 /* 20 */ {44, (CH_UPPER_SB | CH_EWA_VALID)},
527 /* 21 */ {48, (CH_LOWER_SB | CH_EWA_VALID)},
528 /* 22 */ {52, (CH_UPPER_SB | CH_EWA_VALID)},
529 /* 23 */ {56, (CH_LOWER_SB | CH_EWA_VALID)},
530 /* 24 */ {60, (CH_UPPER_SB | CH_EWA_VALID)},
531 /* 25 */ {64, (CH_LOWER_SB | CH_EWA_VALID)},
532
533 /* 11a Europe */
534 /* 26 */ {100, (CH_UPPER_SB | CH_EWA_VALID)},
535 /* 27 */ {104, (CH_LOWER_SB | CH_EWA_VALID)},
536 /* 28 */ {108, (CH_UPPER_SB | CH_EWA_VALID)},
537 /* 29 */ {112, (CH_LOWER_SB | CH_EWA_VALID)},
538 /* 30 */ {116, (CH_UPPER_SB | CH_EWA_VALID)},
539 /* 31 */ {120, (CH_LOWER_SB | CH_EWA_VALID)},
540 /* 32 */ {124, (CH_UPPER_SB | CH_EWA_VALID)},
541 /* 33 */ {128, (CH_LOWER_SB | CH_EWA_VALID)},
542 /* 34 */ {132, (CH_UPPER_SB | CH_EWA_VALID)},
543 /* 35 */ {136, (CH_LOWER_SB | CH_EWA_VALID)},
544 /* 36 */ {140, (CH_LOWER_SB)},
545
546 /* 11a usa high, ref5 only */
547 /* The 0x80 bit in pdiv means these are REF5, other entries are REF20 */
548 /* 37 */ {149, (CH_UPPER_SB | CH_EWA_VALID)},
549 /* 38 */ {153, (CH_LOWER_SB | CH_EWA_VALID)},
550 /* 39 */ {157, (CH_UPPER_SB | CH_EWA_VALID)},
551 /* 40 */ {161, (CH_LOWER_SB | CH_EWA_VALID)},
552 /* 41 */ {165, (CH_LOWER_SB)},
553
554 /* 11a japan */
555 /* 42 */ {184, (CH_UPPER_SB)},
556 /* 43 */ {188, (CH_LOWER_SB)},
557 /* 44 */ {192, (CH_UPPER_SB)},
558 /* 45 */ {196, (CH_LOWER_SB)},
559 /* 46 */ {200, (CH_UPPER_SB)},
560 /* 47 */ {204, (CH_LOWER_SB)},
561 /* 48 */ {208, (CH_UPPER_SB)},
562 /* 49 */ {212, (CH_LOWER_SB)},
563 /* 50 */ {216, (CH_LOWER_SB)}
564 };
565 #endif /* SUPPORT_40MHZ */
566
567 const locale_info_t *wlc_get_locale_2g(u8 locale_idx)
568 {
569 if (locale_idx >= ARRAY_SIZE(g_locale_2g_table)) {
570 WL_ERROR("%s: locale 2g index size out of range %d\n",
571 __func__, locale_idx);
572 ASSERT(locale_idx < ARRAY_SIZE(g_locale_2g_table));
573 return NULL;
574 }
575 return g_locale_2g_table[locale_idx];
576 }
577
578 const locale_info_t *wlc_get_locale_5g(u8 locale_idx)
579 {
580 if (locale_idx >= ARRAY_SIZE(g_locale_5g_table)) {
581 WL_ERROR("%s: locale 5g index size out of range %d\n",
582 __func__, locale_idx);
583 ASSERT(locale_idx < ARRAY_SIZE(g_locale_5g_table));
584 return NULL;
585 }
586 return g_locale_5g_table[locale_idx];
587 }
588
589 const locale_mimo_info_t *wlc_get_mimo_2g(u8 locale_idx)
590 {
591 if (locale_idx >= ARRAY_SIZE(g_mimo_2g_table)) {
592 WL_ERROR("%s: mimo 2g index size out of range %d\n",
593 __func__, locale_idx);
594 return NULL;
595 }
596 return g_mimo_2g_table[locale_idx];
597 }
598
599 const locale_mimo_info_t *wlc_get_mimo_5g(u8 locale_idx)
600 {
601 if (locale_idx >= ARRAY_SIZE(g_mimo_5g_table)) {
602 WL_ERROR("%s: mimo 5g index size out of range %d\n",
603 __func__, locale_idx);
604 return NULL;
605 }
606 return g_mimo_5g_table[locale_idx];
607 }
608
609 wlc_cm_info_t *wlc_channel_mgr_attach(struct wlc_info *wlc)
610 {
611 wlc_cm_info_t *wlc_cm;
612 char country_abbrev[WLC_CNTRY_BUF_SZ];
613 const country_info_t *country;
614 struct wlc_pub *pub = wlc->pub;
615 char *ccode;
616
617 WL_TRACE("wl%d: wlc_channel_mgr_attach\n", wlc->pub->unit);
618
619 wlc_cm = kzalloc(sizeof(wlc_cm_info_t), GFP_ATOMIC);
620 if (wlc_cm == NULL) {
621 WL_ERROR("wl%d: %s: out of memory", pub->unit, __func__);
622 return NULL;
623 }
624 wlc_cm->pub = pub;
625 wlc_cm->wlc = wlc;
626 wlc->cmi = wlc_cm;
627
628 /* store the country code for passing up as a regulatory hint */
629 ccode = getvar(wlc->pub->vars, "ccode");
630 if (ccode) {
631 strncpy(wlc->pub->srom_ccode, ccode, WLC_CNTRY_BUF_SZ - 1);
632 WL_NONE("%s: SROM country code is %c%c\n",
633 __func__,
634 wlc->pub->srom_ccode[0], wlc->pub->srom_ccode[1]);
635 }
636
637 /* internal country information which must match regulatory constraints in firmware */
638 memset(country_abbrev, 0, WLC_CNTRY_BUF_SZ);
639 strncpy(country_abbrev, "X2", sizeof(country_abbrev) - 1);
640 country = wlc_country_lookup(wlc, country_abbrev);
641
642 ASSERT(country != NULL);
643
644 /* save default country for exiting 11d regulatory mode */
645 strncpy(wlc->country_default, country_abbrev, WLC_CNTRY_BUF_SZ - 1);
646
647 /* initialize autocountry_default to driver default */
648 strncpy(wlc->autocountry_default, "X2", WLC_CNTRY_BUF_SZ - 1);
649
650 wlc_set_countrycode(wlc_cm, country_abbrev);
651
652 return wlc_cm;
653 }
654
655 void wlc_channel_mgr_detach(wlc_cm_info_t *wlc_cm)
656 {
657 if (wlc_cm)
658 kfree(wlc_cm);
659 }
660
661 u8 wlc_channel_locale_flags_in_band(wlc_cm_info_t *wlc_cm, uint bandunit)
662 {
663 return wlc_cm->bandstate[bandunit].locale_flags;
664 }
665
666 /* set the driver's current country and regulatory information using a country code
667 * as the source. Lookup built in country information found with the country code.
668 */
669 int wlc_set_countrycode(wlc_cm_info_t *wlc_cm, const char *ccode)
670 {
671 char country_abbrev[WLC_CNTRY_BUF_SZ];
672 strncpy(country_abbrev, ccode, WLC_CNTRY_BUF_SZ);
673 return wlc_set_countrycode_rev(wlc_cm, country_abbrev, ccode, -1);
674 }
675
676 int
677 wlc_set_countrycode_rev(wlc_cm_info_t *wlc_cm,
678 const char *country_abbrev,
679 const char *ccode, int regrev)
680 {
681 const country_info_t *country;
682 char mapped_ccode[WLC_CNTRY_BUF_SZ];
683 uint mapped_regrev;
684
685 WL_NONE("%s: (country_abbrev \"%s\", ccode \"%s\", regrev %d) SPROM \"%s\"/%u\n",
686 __func__, country_abbrev, ccode, regrev,
687 wlc_cm->srom_ccode, wlc_cm->srom_regrev);
688
689 /* if regrev is -1, lookup the mapped country code,
690 * otherwise use the ccode and regrev directly
691 */
692 if (regrev == -1) {
693 /* map the country code to a built-in country code, regrev, and country_info */
694 country =
695 wlc_countrycode_map(wlc_cm, ccode, mapped_ccode,
696 &mapped_regrev);
697 } else {
698 /* find the matching built-in country definition */
699 ASSERT(0);
700 country = wlc_country_lookup_direct(ccode, regrev);
701 strncpy(mapped_ccode, ccode, WLC_CNTRY_BUF_SZ);
702 mapped_regrev = regrev;
703 }
704
705 if (country == NULL)
706 return BCME_BADARG;
707
708 /* set the driver state for the country */
709 wlc_set_country_common(wlc_cm, country_abbrev, mapped_ccode,
710 mapped_regrev, country);
711
712 return 0;
713 }
714
715 /* set the driver's current country and regulatory information using a country code
716 * as the source. Look up built in country information found with the country code.
717 */
718 static void
719 wlc_set_country_common(wlc_cm_info_t *wlc_cm,
720 const char *country_abbrev,
721 const char *ccode, uint regrev,
722 const country_info_t *country)
723 {
724 const locale_mimo_info_t *li_mimo;
725 const locale_info_t *locale;
726 struct wlc_info *wlc = wlc_cm->wlc;
727 char prev_country_abbrev[WLC_CNTRY_BUF_SZ];
728
729 ASSERT(country != NULL);
730
731 /* save current country state */
732 wlc_cm->country = country;
733
734 memset(&prev_country_abbrev, 0, WLC_CNTRY_BUF_SZ);
735 strncpy(prev_country_abbrev, wlc_cm->country_abbrev,
736 WLC_CNTRY_BUF_SZ - 1);
737
738 strncpy(wlc_cm->country_abbrev, country_abbrev, WLC_CNTRY_BUF_SZ - 1);
739 strncpy(wlc_cm->ccode, ccode, WLC_CNTRY_BUF_SZ - 1);
740 wlc_cm->regrev = regrev;
741
742 /* disable/restore nmode based on country regulations */
743 li_mimo = wlc_get_mimo_2g(country->locale_mimo_2G);
744 if (li_mimo && (li_mimo->flags & WLC_NO_MIMO)) {
745 wlc_set_nmode(wlc, OFF);
746 wlc->stf->no_cddstbc = true;
747 } else {
748 wlc->stf->no_cddstbc = false;
749 if (N_ENAB(wlc->pub) != wlc->protection->nmode_user)
750 wlc_set_nmode(wlc, wlc->protection->nmode_user);
751 }
752
753 wlc_stf_ss_update(wlc, wlc->bandstate[BAND_2G_INDEX]);
754 wlc_stf_ss_update(wlc, wlc->bandstate[BAND_5G_INDEX]);
755 /* set or restore gmode as required by regulatory */
756 locale = wlc_get_locale_2g(country->locale_2G);
757 if (locale && (locale->flags & WLC_NO_OFDM)) {
758 wlc_set_gmode(wlc, GMODE_LEGACY_B, false);
759 } else {
760 wlc_set_gmode(wlc, wlc->protection->gmode_user, false);
761 }
762
763 wlc_channels_init(wlc_cm, country);
764
765 return;
766 }
767
768 /* Lookup a country info structure from a null terminated country code
769 * The lookup is case sensitive.
770 */
771 const country_info_t *wlc_country_lookup(struct wlc_info *wlc,
772 const char *ccode)
773 {
774 const country_info_t *country;
775 char mapped_ccode[WLC_CNTRY_BUF_SZ];
776 uint mapped_regrev;
777
778 /* map the country code to a built-in country code, regrev, and country_info struct */
779 country =
780 wlc_countrycode_map(wlc->cmi, ccode, mapped_ccode, &mapped_regrev);
781
782 return country;
783 }
784
785 static const country_info_t *wlc_countrycode_map(wlc_cm_info_t *wlc_cm,
786 const char *ccode,
787 char *mapped_ccode,
788 uint *mapped_regrev)
789 {
790 struct wlc_info *wlc = wlc_cm->wlc;
791 const country_info_t *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) > (WLC_CNTRY_BUF_SZ - 1)) {
798 WL_ERROR("wl%d: %s: ccode \"%s\" too long for match\n",
799 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, WLC_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 WL_ERROR("srom_code == ccode %s\n", __func__);
815 ASSERT(0);
816 } else {
817 mapped =
818 wlc_country_aggregate_map(wlc_cm, ccode, mapped_ccode,
819 mapped_regrev);
820 }
821
822 /* find the matching built-in country definition */
823 country = wlc_country_lookup_direct(mapped_ccode, *mapped_regrev);
824
825 /* if there is not an exact rev match, default to rev zero */
826 if (country == NULL && *mapped_regrev != 0) {
827 *mapped_regrev = 0;
828 ASSERT(0);
829 country =
830 wlc_country_lookup_direct(mapped_ccode, *mapped_regrev);
831 }
832
833 return country;
834 }
835
836 static int
837 wlc_country_aggregate_map(wlc_cm_info_t *wlc_cm, const char *ccode,
838 char *mapped_ccode, uint *mapped_regrev)
839 {
840 return false;
841 }
842
843 /* Lookup a country info structure from a null terminated country
844 * abbreviation and regrev directly with no translation.
845 */
846 static const country_info_t *wlc_country_lookup_direct(const char *ccode,
847 uint regrev)
848 {
849 uint size, i;
850
851 /* Should just return 0 for single locale driver. */
852 /* Keep it this way in case we add more locales. (for now anyway) */
853
854 /* all other country def arrays are for regrev == 0, so if regrev is non-zero, fail */
855 if (regrev > 0)
856 return NULL;
857
858 /* find matched table entry from country code */
859 size = ARRAY_SIZE(cntry_locales);
860 for (i = 0; i < size; i++) {
861 if (strcmp(ccode, cntry_locales[i].abbrev) == 0) {
862 return &cntry_locales[i].country;
863 }
864 }
865
866 WL_ERROR("%s: Returning NULL\n", __func__);
867 ASSERT(0);
868 return NULL;
869 }
870
871 static int
872 wlc_channels_init(wlc_cm_info_t *wlc_cm, const country_info_t *country)
873 {
874 struct wlc_info *wlc = wlc_cm->wlc;
875 uint i, j;
876 struct wlcband *band;
877 const locale_info_t *li;
878 chanvec_t sup_chan;
879 const locale_mimo_info_t *li_mimo;
880
881 band = wlc->band;
882 for (i = 0; i < NBANDS(wlc);
883 i++, band = wlc->bandstate[OTHERBANDUNIT(wlc)]) {
884
885 li = BAND_5G(band->bandtype) ?
886 wlc_get_locale_5g(country->locale_5G) :
887 wlc_get_locale_2g(country->locale_2G);
888 ASSERT(li);
889 wlc_cm->bandstate[band->bandunit].locale_flags = li->flags;
890 li_mimo = BAND_5G(band->bandtype) ?
891 wlc_get_mimo_5g(country->locale_mimo_5G) :
892 wlc_get_mimo_2g(country->locale_mimo_2G);
893 ASSERT(li_mimo);
894
895 /* merge the mimo non-mimo locale flags */
896 wlc_cm->bandstate[band->bandunit].locale_flags |=
897 li_mimo->flags;
898
899 wlc_cm->bandstate[band->bandunit].restricted_channels =
900 g_table_restricted_chan[li->restricted_channels];
901 wlc_cm->bandstate[band->bandunit].radar_channels =
902 g_table_radar_set[li->radar_channels];
903
904 /* set the channel availability,
905 * masking out the channels that may not be supported on this phy
906 */
907 wlc_phy_chanspec_band_validch(band->pi, band->bandtype,
908 &sup_chan);
909 wlc_locale_get_channels(li,
910 &wlc_cm->bandstate[band->bandunit].
911 valid_channels);
912 for (j = 0; j < sizeof(chanvec_t); j++)
913 wlc_cm->bandstate[band->bandunit].valid_channels.
914 vec[j] &= sup_chan.vec[j];
915 }
916
917 wlc_quiet_channels_reset(wlc_cm);
918 wlc_channels_commit(wlc_cm);
919
920 return 0;
921 }
922
923 /* Update the radio state (enable/disable) and tx power targets
924 * based on a new set of channel/regulatory information
925 */
926 static void wlc_channels_commit(wlc_cm_info_t *wlc_cm)
927 {
928 struct wlc_info *wlc = wlc_cm->wlc;
929 uint chan;
930 struct txpwr_limits txpwr;
931
932 /* search for the existence of any valid channel */
933 for (chan = 0; chan < MAXCHANNEL; chan++) {
934 if (VALID_CHANNEL20_DB(wlc, chan)) {
935 break;
936 }
937 }
938 if (chan == MAXCHANNEL)
939 chan = INVCHANNEL;
940
941 /* based on the channel search above, set or clear WL_RADIO_COUNTRY_DISABLE */
942 if (chan == INVCHANNEL) {
943 /* country/locale with no valid channels, set the radio disable bit */
944 mboolset(wlc->pub->radio_disabled, WL_RADIO_COUNTRY_DISABLE);
945 WL_ERROR("wl%d: %s: no valid channel for \"%s\" nbands %d bandlocked %d\n",
946 wlc->pub->unit, __func__,
947 wlc_cm->country_abbrev, NBANDS(wlc), wlc->bandlocked);
948 } else
949 if (mboolisset(wlc->pub->radio_disabled,
950 WL_RADIO_COUNTRY_DISABLE)) {
951 /* country/locale with valid channel, clear the radio disable bit */
952 mboolclr(wlc->pub->radio_disabled, WL_RADIO_COUNTRY_DISABLE);
953 }
954
955 /* Now that the country abbreviation is set, if the radio supports 2G, then
956 * set channel 14 restrictions based on the new locale.
957 */
958 if (NBANDS(wlc) > 1 || BAND_2G(wlc->band->bandtype)) {
959 wlc_phy_chanspec_ch14_widefilter_set(wlc->band->pi,
960 wlc_japan(wlc) ? true :
961 false);
962 }
963
964 if (wlc->pub->up && chan != INVCHANNEL) {
965 wlc_channel_reg_limits(wlc_cm, wlc->chanspec, &txpwr);
966 wlc_channel_min_txpower_limits_with_local_constraint(wlc_cm,
967 &txpwr,
968 WLC_TXPWR_MAX);
969 wlc_phy_txpower_limit_set(wlc->band->pi, &txpwr, wlc->chanspec);
970 }
971 }
972
973 /* reset the quiet channels vector to the union of the restricted and radar channel sets */
974 void wlc_quiet_channels_reset(wlc_cm_info_t *wlc_cm)
975 {
976 struct wlc_info *wlc = wlc_cm->wlc;
977 uint i, j;
978 struct wlcband *band;
979 const chanvec_t *chanvec;
980
981 memset(&wlc_cm->quiet_channels, 0, sizeof(chanvec_t));
982
983 band = wlc->band;
984 for (i = 0; i < NBANDS(wlc);
985 i++, band = wlc->bandstate[OTHERBANDUNIT(wlc)]) {
986
987 /* initialize quiet channels for restricted channels */
988 chanvec = wlc_cm->bandstate[band->bandunit].restricted_channels;
989 for (j = 0; j < sizeof(chanvec_t); j++)
990 wlc_cm->quiet_channels.vec[j] |= chanvec->vec[j];
991
992 }
993 }
994
995 bool wlc_quiet_chanspec(wlc_cm_info_t *wlc_cm, chanspec_t chspec)
996 {
997 return N_ENAB(wlc_cm->wlc->pub) && CHSPEC_IS40(chspec) ?
998 (isset
999 (wlc_cm->quiet_channels.vec,
1000 LOWER_20_SB(CHSPEC_CHANNEL(chspec)))
1001 || isset(wlc_cm->quiet_channels.vec,
1002 UPPER_20_SB(CHSPEC_CHANNEL(chspec)))) : isset(wlc_cm->
1003 quiet_channels.
1004 vec,
1005 CHSPEC_CHANNEL
1006 (chspec));
1007 }
1008
1009 /* Is the channel valid for the current locale? (but don't consider channels not
1010 * available due to bandlocking)
1011 */
1012 bool wlc_valid_channel20_db(wlc_cm_info_t *wlc_cm, uint val)
1013 {
1014 struct wlc_info *wlc = wlc_cm->wlc;
1015
1016 return VALID_CHANNEL20(wlc, val) ||
1017 (!wlc->bandlocked
1018 && VALID_CHANNEL20_IN_BAND(wlc, OTHERBANDUNIT(wlc), val));
1019 }
1020
1021 /* Is the channel valid for the current locale and specified band? */
1022 bool
1023 wlc_valid_channel20_in_band(wlc_cm_info_t *wlc_cm, uint bandunit, uint val)
1024 {
1025 return ((val < MAXCHANNEL)
1026 && isset(wlc_cm->bandstate[bandunit].valid_channels.vec, val));
1027 }
1028
1029 /* Is the channel valid for the current locale and current band? */
1030 bool wlc_valid_channel20(wlc_cm_info_t *wlc_cm, uint val)
1031 {
1032 struct wlc_info *wlc = wlc_cm->wlc;
1033
1034 return ((val < MAXCHANNEL) &&
1035 isset(wlc_cm->bandstate[wlc->band->bandunit].valid_channels.vec,
1036 val));
1037 }
1038
1039 static void
1040 wlc_channel_min_txpower_limits_with_local_constraint(wlc_cm_info_t *wlc_cm,
1041 struct txpwr_limits *txpwr,
1042 u8
1043 local_constraint_qdbm)
1044 {
1045 int j;
1046
1047 /* CCK Rates */
1048 for (j = 0; j < WL_TX_POWER_CCK_NUM; j++) {
1049 txpwr->cck[j] = min(txpwr->cck[j], local_constraint_qdbm);
1050 }
1051
1052 /* 20 MHz Legacy OFDM SISO */
1053 for (j = 0; j < WL_TX_POWER_OFDM_NUM; j++) {
1054 txpwr->ofdm[j] = min(txpwr->ofdm[j], local_constraint_qdbm);
1055 }
1056
1057 /* 20 MHz Legacy OFDM CDD */
1058 for (j = 0; j < WLC_NUM_RATES_OFDM; j++) {
1059 txpwr->ofdm_cdd[j] =
1060 min(txpwr->ofdm_cdd[j], local_constraint_qdbm);
1061 }
1062
1063 /* 40 MHz Legacy OFDM SISO */
1064 for (j = 0; j < WLC_NUM_RATES_OFDM; j++) {
1065 txpwr->ofdm_40_siso[j] =
1066 min(txpwr->ofdm_40_siso[j], local_constraint_qdbm);
1067 }
1068
1069 /* 40 MHz Legacy OFDM CDD */
1070 for (j = 0; j < WLC_NUM_RATES_OFDM; j++) {
1071 txpwr->ofdm_40_cdd[j] =
1072 min(txpwr->ofdm_40_cdd[j], local_constraint_qdbm);
1073 }
1074
1075 /* 20MHz MCS 0-7 SISO */
1076 for (j = 0; j < WLC_NUM_RATES_MCS_1_STREAM; j++) {
1077 txpwr->mcs_20_siso[j] =
1078 min(txpwr->mcs_20_siso[j], local_constraint_qdbm);
1079 }
1080
1081 /* 20MHz MCS 0-7 CDD */
1082 for (j = 0; j < WLC_NUM_RATES_MCS_1_STREAM; j++) {
1083 txpwr->mcs_20_cdd[j] =
1084 min(txpwr->mcs_20_cdd[j], local_constraint_qdbm);
1085 }
1086
1087 /* 20MHz MCS 0-7 STBC */
1088 for (j = 0; j < WLC_NUM_RATES_MCS_1_STREAM; j++) {
1089 txpwr->mcs_20_stbc[j] =
1090 min(txpwr->mcs_20_stbc[j], local_constraint_qdbm);
1091 }
1092
1093 /* 20MHz MCS 8-15 MIMO */
1094 for (j = 0; j < WLC_NUM_RATES_MCS_2_STREAM; j++)
1095 txpwr->mcs_20_mimo[j] =
1096 min(txpwr->mcs_20_mimo[j], local_constraint_qdbm);
1097
1098 /* 40MHz MCS 0-7 SISO */
1099 for (j = 0; j < WLC_NUM_RATES_MCS_1_STREAM; j++) {
1100 txpwr->mcs_40_siso[j] =
1101 min(txpwr->mcs_40_siso[j], local_constraint_qdbm);
1102 }
1103
1104 /* 40MHz MCS 0-7 CDD */
1105 for (j = 0; j < WLC_NUM_RATES_MCS_1_STREAM; j++) {
1106 txpwr->mcs_40_cdd[j] =
1107 min(txpwr->mcs_40_cdd[j], local_constraint_qdbm);
1108 }
1109
1110 /* 40MHz MCS 0-7 STBC */
1111 for (j = 0; j < WLC_NUM_RATES_MCS_1_STREAM; j++) {
1112 txpwr->mcs_40_stbc[j] =
1113 min(txpwr->mcs_40_stbc[j], local_constraint_qdbm);
1114 }
1115
1116 /* 40MHz MCS 8-15 MIMO */
1117 for (j = 0; j < WLC_NUM_RATES_MCS_2_STREAM; j++)
1118 txpwr->mcs_40_mimo[j] =
1119 min(txpwr->mcs_40_mimo[j], local_constraint_qdbm);
1120
1121 /* 40MHz MCS 32 */
1122 txpwr->mcs32 = min(txpwr->mcs32, local_constraint_qdbm);
1123
1124 }
1125
1126 void
1127 wlc_channel_set_chanspec(wlc_cm_info_t *wlc_cm, chanspec_t chanspec,
1128 u8 local_constraint_qdbm)
1129 {
1130 struct wlc_info *wlc = wlc_cm->wlc;
1131 struct txpwr_limits txpwr;
1132
1133 wlc_channel_reg_limits(wlc_cm, chanspec, &txpwr);
1134
1135 wlc_channel_min_txpower_limits_with_local_constraint(wlc_cm, &txpwr,
1136 local_constraint_qdbm);
1137
1138 wlc_bmac_set_chanspec(wlc->hw, chanspec,
1139 (wlc_quiet_chanspec(wlc_cm, chanspec) != 0),
1140 &txpwr);
1141 }
1142
1143 #ifdef POWER_DBG
1144 static void wlc_phy_txpower_limits_dump(txpwr_limits_t *txpwr)
1145 {
1146 int i;
1147 char fraction[4][4] = { " ", ".25", ".5 ", ".75" };
1148
1149 printf("CCK ");
1150 for (i = 0; i < WLC_NUM_RATES_CCK; i++) {
1151 printf(" %2d%s", txpwr->cck[i] / WLC_TXPWR_DB_FACTOR,
1152 fraction[txpwr->cck[i] % WLC_TXPWR_DB_FACTOR]);
1153 }
1154 printf("\n");
1155
1156 printf("20 MHz OFDM SISO ");
1157 for (i = 0; i < WLC_NUM_RATES_OFDM; i++) {
1158 printf(" %2d%s", txpwr->ofdm[i] / WLC_TXPWR_DB_FACTOR,
1159 fraction[txpwr->ofdm[i] % WLC_TXPWR_DB_FACTOR]);
1160 }
1161 printf("\n");
1162
1163 printf("20 MHz OFDM CDD ");
1164 for (i = 0; i < WLC_NUM_RATES_OFDM; i++) {
1165 printf(" %2d%s", txpwr->ofdm_cdd[i] / WLC_TXPWR_DB_FACTOR,
1166 fraction[txpwr->ofdm_cdd[i] % WLC_TXPWR_DB_FACTOR]);
1167 }
1168 printf("\n");
1169
1170 printf("40 MHz OFDM SISO ");
1171 for (i = 0; i < WLC_NUM_RATES_OFDM; i++) {
1172 printf(" %2d%s", txpwr->ofdm_40_siso[i] / WLC_TXPWR_DB_FACTOR,
1173 fraction[txpwr->ofdm_40_siso[i] % WLC_TXPWR_DB_FACTOR]);
1174 }
1175 printf("\n");
1176
1177 printf("40 MHz OFDM CDD ");
1178 for (i = 0; i < WLC_NUM_RATES_OFDM; i++) {
1179 printf(" %2d%s", txpwr->ofdm_40_cdd[i] / WLC_TXPWR_DB_FACTOR,
1180 fraction[txpwr->ofdm_40_cdd[i] % WLC_TXPWR_DB_FACTOR]);
1181 }
1182 printf("\n");
1183
1184 printf("20 MHz MCS0-7 SISO ");
1185 for (i = 0; i < WLC_NUM_RATES_MCS_1_STREAM; i++) {
1186 printf(" %2d%s", txpwr->mcs_20_siso[i] / WLC_TXPWR_DB_FACTOR,
1187 fraction[txpwr->mcs_20_siso[i] % WLC_TXPWR_DB_FACTOR]);
1188 }
1189 printf("\n");
1190
1191 printf("20 MHz MCS0-7 CDD ");
1192 for (i = 0; i < WLC_NUM_RATES_MCS_1_STREAM; i++) {
1193 printf(" %2d%s", txpwr->mcs_20_cdd[i] / WLC_TXPWR_DB_FACTOR,
1194 fraction[txpwr->mcs_20_cdd[i] % WLC_TXPWR_DB_FACTOR]);
1195 }
1196 printf("\n");
1197
1198 printf("20 MHz MCS0-7 STBC ");
1199 for (i = 0; i < WLC_NUM_RATES_MCS_1_STREAM; i++) {
1200 printf(" %2d%s", txpwr->mcs_20_stbc[i] / WLC_TXPWR_DB_FACTOR,
1201 fraction[txpwr->mcs_20_stbc[i] % WLC_TXPWR_DB_FACTOR]);
1202 }
1203 printf("\n");
1204
1205 printf("20 MHz MCS8-15 SDM ");
1206 for (i = 0; i < WLC_NUM_RATES_MCS_2_STREAM; i++) {
1207 printf(" %2d%s", txpwr->mcs_20_mimo[i] / WLC_TXPWR_DB_FACTOR,
1208 fraction[txpwr->mcs_20_mimo[i] % WLC_TXPWR_DB_FACTOR]);
1209 }
1210 printf("\n");
1211
1212 printf("40 MHz MCS0-7 SISO ");
1213 for (i = 0; i < WLC_NUM_RATES_MCS_1_STREAM; i++) {
1214 printf(" %2d%s", txpwr->mcs_40_siso[i] / WLC_TXPWR_DB_FACTOR,
1215 fraction[txpwr->mcs_40_siso[i] % WLC_TXPWR_DB_FACTOR]);
1216 }
1217 printf("\n");
1218
1219 printf("40 MHz MCS0-7 CDD ");
1220 for (i = 0; i < WLC_NUM_RATES_MCS_1_STREAM; i++) {
1221 printf(" %2d%s", txpwr->mcs_40_cdd[i] / WLC_TXPWR_DB_FACTOR,
1222 fraction[txpwr->mcs_40_cdd[i] % WLC_TXPWR_DB_FACTOR]);
1223 }
1224 printf("\n");
1225
1226 printf("40 MHz MCS0-7 STBC ");
1227 for (i = 0; i < WLC_NUM_RATES_MCS_1_STREAM; i++) {
1228 printf(" %2d%s", txpwr->mcs_40_stbc[i] / WLC_TXPWR_DB_FACTOR,
1229 fraction[txpwr->mcs_40_stbc[i] % WLC_TXPWR_DB_FACTOR]);
1230 }
1231 printf("\n");
1232
1233 printf("40 MHz MCS8-15 SDM ");
1234 for (i = 0; i < WLC_NUM_RATES_MCS_2_STREAM; i++) {
1235 printf(" %2d%s", txpwr->mcs_40_mimo[i] / WLC_TXPWR_DB_FACTOR,
1236 fraction[txpwr->mcs_40_mimo[i] % WLC_TXPWR_DB_FACTOR]);
1237 }
1238 printf("\n");
1239
1240 printf("MCS32 %2d%s\n",
1241 txpwr->mcs32 / WLC_TXPWR_DB_FACTOR,
1242 fraction[txpwr->mcs32 % WLC_TXPWR_DB_FACTOR]);
1243 }
1244 #endif /* POWER_DBG */
1245
1246 void
1247 wlc_channel_reg_limits(wlc_cm_info_t *wlc_cm, chanspec_t chanspec,
1248 txpwr_limits_t *txpwr)
1249 {
1250 struct wlc_info *wlc = wlc_cm->wlc;
1251 uint i;
1252 uint chan;
1253 int maxpwr;
1254 int delta;
1255 const country_info_t *country;
1256 struct wlcband *band;
1257 const locale_info_t *li;
1258 int conducted_max;
1259 int conducted_ofdm_max;
1260 const locale_mimo_info_t *li_mimo;
1261 int maxpwr20, maxpwr40;
1262 int maxpwr_idx;
1263 uint j;
1264
1265 memset(txpwr, 0, sizeof(txpwr_limits_t));
1266
1267 if (!wlc_valid_chanspec_db(wlc_cm, chanspec)) {
1268 country = wlc_country_lookup(wlc, wlc->autocountry_default);
1269 if (country == NULL)
1270 return;
1271 } else {
1272 country = wlc_cm->country;
1273 }
1274
1275 chan = CHSPEC_CHANNEL(chanspec);
1276 band = wlc->bandstate[CHSPEC_WLCBANDUNIT(chanspec)];
1277 li = BAND_5G(band->bandtype) ?
1278 wlc_get_locale_5g(country->locale_5G) :
1279 wlc_get_locale_2g(country->locale_2G);
1280
1281 li_mimo = BAND_5G(band->bandtype) ?
1282 wlc_get_mimo_5g(country->locale_mimo_5G) :
1283 wlc_get_mimo_2g(country->locale_mimo_2G);
1284
1285 if (li->flags & WLC_EIRP) {
1286 delta = band->antgain;
1287 } else {
1288 delta = 0;
1289 if (band->antgain > QDB(6))
1290 delta = band->antgain - QDB(6); /* Excess over 6 dB */
1291 }
1292
1293 if (li == &locale_i) {
1294 conducted_max = QDB(22);
1295 conducted_ofdm_max = QDB(22);
1296 }
1297
1298 /* CCK txpwr limits for 2.4G band */
1299 if (BAND_2G(band->bandtype)) {
1300 maxpwr = li->maxpwr[CHANNEL_POWER_IDX_2G_CCK(chan)];
1301
1302 maxpwr = maxpwr - delta;
1303 maxpwr = max(maxpwr, 0);
1304 maxpwr = min(maxpwr, conducted_max);
1305
1306 for (i = 0; i < WLC_NUM_RATES_CCK; i++)
1307 txpwr->cck[i] = (u8) maxpwr;
1308 }
1309
1310 /* OFDM txpwr limits for 2.4G or 5G bands */
1311 if (BAND_2G(band->bandtype)) {
1312 maxpwr = li->maxpwr[CHANNEL_POWER_IDX_2G_OFDM(chan)];
1313
1314 } else {
1315 maxpwr = li->maxpwr[CHANNEL_POWER_IDX_5G(chan)];
1316 }
1317
1318 maxpwr = maxpwr - delta;
1319 maxpwr = max(maxpwr, 0);
1320 maxpwr = min(maxpwr, conducted_ofdm_max);
1321
1322 /* Keep OFDM lmit below CCK limit */
1323 if (BAND_2G(band->bandtype))
1324 maxpwr = min_t(int, maxpwr, txpwr->cck[0]);
1325
1326 for (i = 0; i < WLC_NUM_RATES_OFDM; i++) {
1327 txpwr->ofdm[i] = (u8) maxpwr;
1328 }
1329
1330 for (i = 0; i < WLC_NUM_RATES_OFDM; i++) {
1331 /* OFDM 40 MHz SISO has the same power as the corresponding MCS0-7 rate unless
1332 * overriden by the locale specific code. We set this value to 0 as a
1333 * flag (presumably 0 dBm isn't a possibility) and then copy the MCS0-7 value
1334 * to the 40 MHz value if it wasn't explicitly set.
1335 */
1336 txpwr->ofdm_40_siso[i] = 0;
1337
1338 txpwr->ofdm_cdd[i] = (u8) maxpwr;
1339
1340 txpwr->ofdm_40_cdd[i] = 0;
1341 }
1342
1343 /* MIMO/HT specific limits */
1344 if (li_mimo->flags & WLC_EIRP) {
1345 delta = band->antgain;
1346 } else {
1347 delta = 0;
1348 if (band->antgain > QDB(6))
1349 delta = band->antgain - QDB(6); /* Excess over 6 dB */
1350 }
1351
1352 if (BAND_2G(band->bandtype))
1353 maxpwr_idx = (chan - 1);
1354 else
1355 maxpwr_idx = CHANNEL_POWER_IDX_5G(chan);
1356
1357 maxpwr20 = li_mimo->maxpwr20[maxpwr_idx];
1358 maxpwr40 = li_mimo->maxpwr40[maxpwr_idx];
1359
1360 maxpwr20 = maxpwr20 - delta;
1361 maxpwr20 = max(maxpwr20, 0);
1362 maxpwr40 = maxpwr40 - delta;
1363 maxpwr40 = max(maxpwr40, 0);
1364
1365 /* Fill in the MCS 0-7 (SISO) rates */
1366 for (i = 0; i < WLC_NUM_RATES_MCS_1_STREAM; i++) {
1367
1368 /* 20 MHz has the same power as the corresponding OFDM rate unless
1369 * overriden by the locale specific code.
1370 */
1371 txpwr->mcs_20_siso[i] = txpwr->ofdm[i];
1372 txpwr->mcs_40_siso[i] = 0;
1373 }
1374
1375 /* Fill in the MCS 0-7 CDD rates */
1376 for (i = 0; i < WLC_NUM_RATES_MCS_1_STREAM; i++) {
1377 txpwr->mcs_20_cdd[i] = (u8) maxpwr20;
1378 txpwr->mcs_40_cdd[i] = (u8) maxpwr40;
1379 }
1380
1381 /* These locales have SISO expressed in the table and override CDD later */
1382 if (li_mimo == &locale_bn) {
1383 if (li_mimo == &locale_bn) {
1384 maxpwr20 = QDB(16);
1385 maxpwr40 = 0;
1386
1387 if (chan >= 3 && chan <= 11) {
1388 maxpwr40 = QDB(16);
1389 }
1390 }
1391
1392 for (i = 0; i < WLC_NUM_RATES_MCS_1_STREAM; i++) {
1393 txpwr->mcs_20_siso[i] = (u8) maxpwr20;
1394 txpwr->mcs_40_siso[i] = (u8) maxpwr40;
1395 }
1396 }
1397
1398 /* Fill in the MCS 0-7 STBC rates */
1399 for (i = 0; i < WLC_NUM_RATES_MCS_1_STREAM; i++) {
1400 txpwr->mcs_20_stbc[i] = 0;
1401 txpwr->mcs_40_stbc[i] = 0;
1402 }
1403
1404 /* Fill in the MCS 8-15 SDM rates */
1405 for (i = 0; i < WLC_NUM_RATES_MCS_2_STREAM; i++) {
1406 txpwr->mcs_20_mimo[i] = (u8) maxpwr20;
1407 txpwr->mcs_40_mimo[i] = (u8) maxpwr40;
1408 }
1409
1410 /* Fill in MCS32 */
1411 txpwr->mcs32 = (u8) maxpwr40;
1412
1413 for (i = 0, j = 0; i < WLC_NUM_RATES_OFDM; i++, j++) {
1414 if (txpwr->ofdm_40_cdd[i] == 0)
1415 txpwr->ofdm_40_cdd[i] = txpwr->mcs_40_cdd[j];
1416 if (i == 0) {
1417 i = i + 1;
1418 if (txpwr->ofdm_40_cdd[i] == 0)
1419 txpwr->ofdm_40_cdd[i] = txpwr->mcs_40_cdd[j];
1420 }
1421 }
1422
1423 /* Copy the 40 MHZ MCS 0-7 CDD value to the 40 MHZ MCS 0-7 SISO value if it wasn't
1424 * provided explicitly.
1425 */
1426
1427 for (i = 0; i < WLC_NUM_RATES_MCS_1_STREAM; i++) {
1428 if (txpwr->mcs_40_siso[i] == 0)
1429 txpwr->mcs_40_siso[i] = txpwr->mcs_40_cdd[i];
1430 }
1431
1432 for (i = 0, j = 0; i < WLC_NUM_RATES_OFDM; i++, j++) {
1433 if (txpwr->ofdm_40_siso[i] == 0)
1434 txpwr->ofdm_40_siso[i] = txpwr->mcs_40_siso[j];
1435 if (i == 0) {
1436 i = i + 1;
1437 if (txpwr->ofdm_40_siso[i] == 0)
1438 txpwr->ofdm_40_siso[i] = txpwr->mcs_40_siso[j];
1439 }
1440 }
1441
1442 /* Copy the 20 and 40 MHz MCS0-7 CDD values to the corresponding STBC values if they weren't
1443 * provided explicitly.
1444 */
1445 for (i = 0; i < WLC_NUM_RATES_MCS_1_STREAM; i++) {
1446 if (txpwr->mcs_20_stbc[i] == 0)
1447 txpwr->mcs_20_stbc[i] = txpwr->mcs_20_cdd[i];
1448
1449 if (txpwr->mcs_40_stbc[i] == 0)
1450 txpwr->mcs_40_stbc[i] = txpwr->mcs_40_cdd[i];
1451 }
1452
1453 #ifdef POWER_DBG
1454 wlc_phy_txpower_limits_dump(txpwr);
1455 #endif
1456 return;
1457 }
1458
1459 /* Returns true if currently set country is Japan or variant */
1460 bool wlc_japan(struct wlc_info *wlc)
1461 {
1462 return wlc_japan_ccode(wlc->cmi->country_abbrev);
1463 }
1464
1465 /* JP, J1 - J10 are Japan ccodes */
1466 static bool wlc_japan_ccode(const char *ccode)
1467 {
1468 return (ccode[0] == 'J' &&
1469 (ccode[1] == 'P' || (ccode[1] >= '1' && ccode[1] <= '9')));
1470 }
1471
1472 /*
1473 * Validate the chanspec for this locale, for 40MHZ we need to also check that the sidebands
1474 * are valid 20MZH channels in this locale and they are also a legal HT combination
1475 */
1476 static bool
1477 wlc_valid_chanspec_ext(wlc_cm_info_t *wlc_cm, chanspec_t chspec, bool dualband)
1478 {
1479 struct wlc_info *wlc = wlc_cm->wlc;
1480 u8 channel = CHSPEC_CHANNEL(chspec);
1481
1482 /* check the chanspec */
1483 if (wf_chspec_malformed(chspec)) {
1484 WL_ERROR("wl%d: malformed chanspec 0x%x\n",
1485 wlc->pub->unit, chspec);
1486 ASSERT(0);
1487 return false;
1488 }
1489
1490 if (CHANNEL_BANDUNIT(wlc_cm->wlc, channel) !=
1491 CHSPEC_WLCBANDUNIT(chspec))
1492 return false;
1493
1494 /* Check a 20Mhz channel */
1495 if (CHSPEC_IS20(chspec)) {
1496 if (dualband)
1497 return VALID_CHANNEL20_DB(wlc_cm->wlc, channel);
1498 else
1499 return VALID_CHANNEL20(wlc_cm->wlc, channel);
1500 }
1501 #ifdef SUPPORT_40MHZ
1502 /* We know we are now checking a 40MHZ channel, so we should only be here
1503 * for NPHYS
1504 */
1505 if (WLCISNPHY(wlc->band) || WLCISSSLPNPHY(wlc->band)) {
1506 u8 upper_sideband = 0, idx;
1507 u8 num_ch20_entries =
1508 sizeof(chan20_info) / sizeof(struct chan20_info);
1509
1510 if (!VALID_40CHANSPEC_IN_BAND(wlc, CHSPEC_WLCBANDUNIT(chspec)))
1511 return false;
1512
1513 if (dualband) {
1514 if (!VALID_CHANNEL20_DB(wlc, LOWER_20_SB(channel)) ||
1515 !VALID_CHANNEL20_DB(wlc, UPPER_20_SB(channel)))
1516 return false;
1517 } else {
1518 if (!VALID_CHANNEL20(wlc, LOWER_20_SB(channel)) ||
1519 !VALID_CHANNEL20(wlc, UPPER_20_SB(channel)))
1520 return false;
1521 }
1522
1523 /* find the lower sideband info in the sideband array */
1524 for (idx = 0; idx < num_ch20_entries; idx++) {
1525 if (chan20_info[idx].sb == LOWER_20_SB(channel))
1526 upper_sideband = chan20_info[idx].adj_sbs;
1527 }
1528 /* check that the lower sideband allows an upper sideband */
1529 if ((upper_sideband & (CH_UPPER_SB | CH_EWA_VALID)) ==
1530 (CH_UPPER_SB | CH_EWA_VALID))
1531 return true;
1532 return false;
1533 }
1534 #endif /* 40 MHZ */
1535
1536 return false;
1537 }
1538
1539 bool wlc_valid_chanspec_db(wlc_cm_info_t *wlc_cm, chanspec_t chspec)
1540 {
1541 return wlc_valid_chanspec_ext(wlc_cm, chspec, true);
1542 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree