1 /******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
11 * Copyright(c) 2018 - 2019 Intel Corporation
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of version 2 of the GNU General Public License as
15 * published by the Free Software Foundation.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * The full GNU General Public License is included in this distribution
23 * in the file called COPYING.
24 *
25 * Contact Information:
26 * Intel Linux Wireless <linuxwifi@intel.com>
27 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *
29 * BSD LICENSE
30 *
31 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
32 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
33 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
34 * Copyright(c) 2018 - 2019 Intel Corporation
35 * All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 *
41 * * Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * * Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in
45 * the documentation and/or other materials provided with the
46 * distribution.
47 * * Neither the name Intel Corporation nor the names of its
48 * contributors may be used to endorse or promote products derived
49 * from this software without specific prior written permission.
50 *
51 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
52 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
53 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
54 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
55 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
56 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
57 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
61 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *****************************************************************************/
63 #include <linux/types.h>
64 #include <linux/slab.h>
65 #include <linux/export.h>
66 #include <linux/etherdevice.h>
67 #include <linux/pci.h>
68 #include <linux/firmware.h>
69
70 #include "iwl-drv.h"
71 #include "iwl-modparams.h"
72 #include "iwl-nvm-parse.h"
73 #include "iwl-prph.h"
74 #include "iwl-io.h"
75 #include "iwl-csr.h"
76 #include "fw/acpi.h"
77 #include "fw/api/nvm-reg.h"
78 #include "fw/api/commands.h"
79 #include "fw/api/cmdhdr.h"
80 #include "fw/img.h"
81
82 /* NVM offsets (in words) definitions */
83 enum nvm_offsets {
84 /* NVM HW-Section offset (in words) definitions */
85 SUBSYSTEM_ID = 0x0A,
86 HW_ADDR = 0x15,
87
88 /* NVM SW-Section offset (in words) definitions */
89 NVM_SW_SECTION = 0x1C0,
90 NVM_VERSION = 0,
91 RADIO_CFG = 1,
92 SKU = 2,
93 N_HW_ADDRS = 3,
94 NVM_CHANNELS = 0x1E0 - NVM_SW_SECTION,
95
96 /* NVM calibration section offset (in words) definitions */
97 NVM_CALIB_SECTION = 0x2B8,
98 XTAL_CALIB = 0x316 - NVM_CALIB_SECTION,
99
100 /* NVM REGULATORY -Section offset (in words) definitions */
101 NVM_CHANNELS_SDP = 0,
102 };
103
104 enum ext_nvm_offsets {
105 /* NVM HW-Section offset (in words) definitions */
106 MAC_ADDRESS_OVERRIDE_EXT_NVM = 1,
107
108 /* NVM SW-Section offset (in words) definitions */
109 NVM_VERSION_EXT_NVM = 0,
110 RADIO_CFG_FAMILY_EXT_NVM = 0,
111 SKU_FAMILY_8000 = 2,
112 N_HW_ADDRS_FAMILY_8000 = 3,
113
114 /* NVM REGULATORY -Section offset (in words) definitions */
115 NVM_CHANNELS_EXTENDED = 0,
116 NVM_LAR_OFFSET_OLD = 0x4C7,
117 NVM_LAR_OFFSET = 0x507,
118 NVM_LAR_ENABLED = 0x7,
119 };
120
121 /* SKU Capabilities (actual values from NVM definition) */
122 enum nvm_sku_bits {
123 NVM_SKU_CAP_BAND_24GHZ = BIT(0),
124 NVM_SKU_CAP_BAND_52GHZ = BIT(1),
125 NVM_SKU_CAP_11N_ENABLE = BIT(2),
126 NVM_SKU_CAP_11AC_ENABLE = BIT(3),
127 NVM_SKU_CAP_MIMO_DISABLE = BIT(5),
128 };
129
130 /*
131 * These are the channel numbers in the order that they are stored in the NVM
132 */
133 static const u16 iwl_nvm_channels[] = {
134 /* 2.4 GHz */
135 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
136 /* 5 GHz */
137 36, 40, 44 , 48, 52, 56, 60, 64,
138 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144,
139 149, 153, 157, 161, 165
140 };
141
142 static const u16 iwl_ext_nvm_channels[] = {
143 /* 2.4 GHz */
144 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
145 /* 5 GHz */
146 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92,
147 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144,
148 149, 153, 157, 161, 165, 169, 173, 177, 181
149 };
150
151 static const u16 iwl_uhb_nvm_channels[] = {
152 /* 2.4 GHz */
153 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
154 /* 5 GHz */
155 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92,
156 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144,
157 149, 153, 157, 161, 165, 169, 173, 177, 181,
158 /* 6-7 GHz */
159 1, 5, 9, 13, 17, 21, 25, 29, 33, 37, 41, 45, 49, 53, 57, 61, 65, 69,
160 73, 77, 81, 85, 89, 93, 97, 101, 105, 109, 113, 117, 121, 125, 129,
161 133, 137, 141, 145, 149, 153, 157, 161, 165, 169, 173, 177, 181, 185,
162 189, 193, 197, 201, 205, 209, 213, 217, 221, 225, 229, 233
163 };
164
165 #define IWL_NVM_NUM_CHANNELS ARRAY_SIZE(iwl_nvm_channels)
166 #define IWL_NVM_NUM_CHANNELS_EXT ARRAY_SIZE(iwl_ext_nvm_channels)
167 #define IWL_NVM_NUM_CHANNELS_UHB ARRAY_SIZE(iwl_uhb_nvm_channels)
168 #define NUM_2GHZ_CHANNELS 14
169 #define FIRST_2GHZ_HT_MINUS 5
170 #define LAST_2GHZ_HT_PLUS 9
171 #define N_HW_ADDR_MASK 0xF
172
173 /* rate data (static) */
174 static struct ieee80211_rate iwl_cfg80211_rates[] = {
175 { .bitrate = 1 * 10, .hw_value = 0, .hw_value_short = 0, },
176 { .bitrate = 2 * 10, .hw_value = 1, .hw_value_short = 1,
177 .flags = IEEE80211_RATE_SHORT_PREAMBLE, },
178 { .bitrate = 5.5 * 10, .hw_value = 2, .hw_value_short = 2,
179 .flags = IEEE80211_RATE_SHORT_PREAMBLE, },
180 { .bitrate = 11 * 10, .hw_value = 3, .hw_value_short = 3,
181 .flags = IEEE80211_RATE_SHORT_PREAMBLE, },
182 { .bitrate = 6 * 10, .hw_value = 4, .hw_value_short = 4, },
183 { .bitrate = 9 * 10, .hw_value = 5, .hw_value_short = 5, },
184 { .bitrate = 12 * 10, .hw_value = 6, .hw_value_short = 6, },
185 { .bitrate = 18 * 10, .hw_value = 7, .hw_value_short = 7, },
186 { .bitrate = 24 * 10, .hw_value = 8, .hw_value_short = 8, },
187 { .bitrate = 36 * 10, .hw_value = 9, .hw_value_short = 9, },
188 { .bitrate = 48 * 10, .hw_value = 10, .hw_value_short = 10, },
189 { .bitrate = 54 * 10, .hw_value = 11, .hw_value_short = 11, },
190 };
191 #define RATES_24_OFFS 0
192 #define N_RATES_24 ARRAY_SIZE(iwl_cfg80211_rates)
193 #define RATES_52_OFFS 4
194 #define N_RATES_52 (N_RATES_24 - RATES_52_OFFS)
195
196 /**
197 * enum iwl_nvm_channel_flags - channel flags in NVM
198 * @NVM_CHANNEL_VALID: channel is usable for this SKU/geo
199 * @NVM_CHANNEL_IBSS: usable as an IBSS channel
200 * @NVM_CHANNEL_ACTIVE: active scanning allowed
201 * @NVM_CHANNEL_RADAR: radar detection required
202 * @NVM_CHANNEL_INDOOR_ONLY: only indoor use is allowed
203 * @NVM_CHANNEL_GO_CONCURRENT: GO operation is allowed when connected to BSS
204 * on same channel on 2.4 or same UNII band on 5.2
205 * @NVM_CHANNEL_UNIFORM: uniform spreading required
206 * @NVM_CHANNEL_20MHZ: 20 MHz channel okay
207 * @NVM_CHANNEL_40MHZ: 40 MHz channel okay
208 * @NVM_CHANNEL_80MHZ: 80 MHz channel okay
209 * @NVM_CHANNEL_160MHZ: 160 MHz channel okay
210 * @NVM_CHANNEL_DC_HIGH: DC HIGH required/allowed (?)
211 */
212 enum iwl_nvm_channel_flags {
213 NVM_CHANNEL_VALID = BIT(0),
214 NVM_CHANNEL_IBSS = BIT(1),
215 NVM_CHANNEL_ACTIVE = BIT(3),
216 NVM_CHANNEL_RADAR = BIT(4),
217 NVM_CHANNEL_INDOOR_ONLY = BIT(5),
218 NVM_CHANNEL_GO_CONCURRENT = BIT(6),
219 NVM_CHANNEL_UNIFORM = BIT(7),
220 NVM_CHANNEL_20MHZ = BIT(8),
221 NVM_CHANNEL_40MHZ = BIT(9),
222 NVM_CHANNEL_80MHZ = BIT(10),
223 NVM_CHANNEL_160MHZ = BIT(11),
224 NVM_CHANNEL_DC_HIGH = BIT(12),
225 };
226
227 /**
228 * enum iwl_reg_capa_flags - global flags applied for the whole regulatory
229 * domain.
230 * @REG_CAPA_BF_CCD_LOW_BAND: Beam-forming or Cyclic Delay Diversity in the
231 * 2.4Ghz band is allowed.
232 * @REG_CAPA_BF_CCD_HIGH_BAND: Beam-forming or Cyclic Delay Diversity in the
233 * 5Ghz band is allowed.
234 * @REG_CAPA_160MHZ_ALLOWED: 11ac channel with a width of 160Mhz is allowed
235 * for this regulatory domain (valid only in 5Ghz).
236 * @REG_CAPA_80MHZ_ALLOWED: 11ac channel with a width of 80Mhz is allowed
237 * for this regulatory domain (valid only in 5Ghz).
238 * @REG_CAPA_MCS_8_ALLOWED: 11ac with MCS 8 is allowed.
239 * @REG_CAPA_MCS_9_ALLOWED: 11ac with MCS 9 is allowed.
240 * @REG_CAPA_40MHZ_FORBIDDEN: 11n channel with a width of 40Mhz is forbidden
241 * for this regulatory domain (valid only in 5Ghz).
242 * @REG_CAPA_DC_HIGH_ENABLED: DC HIGH allowed.
243 * @REG_CAPA_11AX_DISABLED: 11ax is forbidden for this regulatory domain.
244 */
245 enum iwl_reg_capa_flags {
246 REG_CAPA_BF_CCD_LOW_BAND = BIT(0),
247 REG_CAPA_BF_CCD_HIGH_BAND = BIT(1),
248 REG_CAPA_160MHZ_ALLOWED = BIT(2),
249 REG_CAPA_80MHZ_ALLOWED = BIT(3),
250 REG_CAPA_MCS_8_ALLOWED = BIT(4),
251 REG_CAPA_MCS_9_ALLOWED = BIT(5),
252 REG_CAPA_40MHZ_FORBIDDEN = BIT(7),
253 REG_CAPA_DC_HIGH_ENABLED = BIT(9),
254 REG_CAPA_11AX_DISABLED = BIT(10),
255 };
256
257 /**
258 * enum iwl_reg_capa_flags_v2 - global flags applied for the whole regulatory
259 * domain (version 2).
260 * @REG_CAPA_V2_STRADDLE_DISABLED: Straddle channels (144, 142, 138) are
261 * disabled.
262 * @REG_CAPA_V2_BF_CCD_LOW_BAND: Beam-forming or Cyclic Delay Diversity in the
263 * 2.4Ghz band is allowed.
264 * @REG_CAPA_V2_BF_CCD_HIGH_BAND: Beam-forming or Cyclic Delay Diversity in the
265 * 5Ghz band is allowed.
266 * @REG_CAPA_V2_160MHZ_ALLOWED: 11ac channel with a width of 160Mhz is allowed
267 * for this regulatory domain (valid only in 5Ghz).
268 * @REG_CAPA_V2_80MHZ_ALLOWED: 11ac channel with a width of 80Mhz is allowed
269 * for this regulatory domain (valid only in 5Ghz).
270 * @REG_CAPA_V2_MCS_8_ALLOWED: 11ac with MCS 8 is allowed.
271 * @REG_CAPA_V2_MCS_9_ALLOWED: 11ac with MCS 9 is allowed.
272 * @REG_CAPA_V2_WEATHER_DISABLED: Weather radar channels (120, 124, 128, 118,
273 * 126, 122) are disabled.
274 * @REG_CAPA_V2_40MHZ_ALLOWED: 11n channel with a width of 40Mhz is allowed
275 * for this regulatory domain (uvalid only in 5Ghz).
276 * @REG_CAPA_V2_11AX_DISABLED: 11ax is forbidden for this regulatory domain.
277 */
278 enum iwl_reg_capa_flags_v2 {
279 REG_CAPA_V2_STRADDLE_DISABLED = BIT(0),
280 REG_CAPA_V2_BF_CCD_LOW_BAND = BIT(1),
281 REG_CAPA_V2_BF_CCD_HIGH_BAND = BIT(2),
282 REG_CAPA_V2_160MHZ_ALLOWED = BIT(3),
283 REG_CAPA_V2_80MHZ_ALLOWED = BIT(4),
284 REG_CAPA_V2_MCS_8_ALLOWED = BIT(5),
285 REG_CAPA_V2_MCS_9_ALLOWED = BIT(6),
286 REG_CAPA_V2_WEATHER_DISABLED = BIT(7),
287 REG_CAPA_V2_40MHZ_ALLOWED = BIT(8),
288 REG_CAPA_V2_11AX_DISABLED = BIT(13),
289 };
290
291 /*
292 * API v2 for reg_capa_flags is relevant from version 6 and onwards of the
293 * MCC update command response.
294 */
295 #define REG_CAPA_V2_RESP_VER 6
296
297 /**
298 * struct iwl_reg_capa - struct for global regulatory capabilities, Used for
299 * handling the different APIs of reg_capa_flags.
300 *
301 * @allow_40mhz: 11n channel with a width of 40Mhz is allowed
302 * for this regulatory domain (valid only in 5Ghz).
303 * @allow_80mhz: 11ac channel with a width of 80Mhz is allowed
304 * for this regulatory domain (valid only in 5Ghz).
305 * @allow_160mhz: 11ac channel with a width of 160Mhz is allowed
306 * for this regulatory domain (valid only in 5Ghz).
307 * @disable_11ax: 11ax is forbidden for this regulatory domain.
308 */
309 struct iwl_reg_capa {
310 u16 allow_40mhz;
311 u16 allow_80mhz;
312 u16 allow_160mhz;
313 u16 disable_11ax;
314 };
315
iwl_nvm_print_channel_flags(struct device * dev,u32 level,int chan,u32 flags)316 static inline void iwl_nvm_print_channel_flags(struct device *dev, u32 level,
317 int chan, u32 flags)
318 {
319 #define CHECK_AND_PRINT_I(x) \
320 ((flags & NVM_CHANNEL_##x) ? " " #x : "")
321
322 if (!(flags & NVM_CHANNEL_VALID)) {
323 IWL_DEBUG_DEV(dev, level, "Ch. %d: 0x%x: No traffic\n",
324 chan, flags);
325 return;
326 }
327
328 /* Note: already can print up to 101 characters, 110 is the limit! */
329 IWL_DEBUG_DEV(dev, level,
330 "Ch. %d: 0x%x:%s%s%s%s%s%s%s%s%s%s%s%s\n",
331 chan, flags,
332 CHECK_AND_PRINT_I(VALID),
333 CHECK_AND_PRINT_I(IBSS),
334 CHECK_AND_PRINT_I(ACTIVE),
335 CHECK_AND_PRINT_I(RADAR),
336 CHECK_AND_PRINT_I(INDOOR_ONLY),
337 CHECK_AND_PRINT_I(GO_CONCURRENT),
338 CHECK_AND_PRINT_I(UNIFORM),
339 CHECK_AND_PRINT_I(20MHZ),
340 CHECK_AND_PRINT_I(40MHZ),
341 CHECK_AND_PRINT_I(80MHZ),
342 CHECK_AND_PRINT_I(160MHZ),
343 CHECK_AND_PRINT_I(DC_HIGH));
344 #undef CHECK_AND_PRINT_I
345 }
346
iwl_get_channel_flags(u8 ch_num,int ch_idx,enum nl80211_band band,u32 nvm_flags,const struct iwl_cfg * cfg)347 static u32 iwl_get_channel_flags(u8 ch_num, int ch_idx, enum nl80211_band band,
348 u32 nvm_flags, const struct iwl_cfg *cfg)
349 {
350 u32 flags = IEEE80211_CHAN_NO_HT40;
351
352 if (band == NL80211_BAND_2GHZ && (nvm_flags & NVM_CHANNEL_40MHZ)) {
353 if (ch_num <= LAST_2GHZ_HT_PLUS)
354 flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
355 if (ch_num >= FIRST_2GHZ_HT_MINUS)
356 flags &= ~IEEE80211_CHAN_NO_HT40MINUS;
357 } else if (nvm_flags & NVM_CHANNEL_40MHZ) {
358 if ((ch_idx - NUM_2GHZ_CHANNELS) % 2 == 0)
359 flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
360 else
361 flags &= ~IEEE80211_CHAN_NO_HT40MINUS;
362 }
363 if (!(nvm_flags & NVM_CHANNEL_80MHZ))
364 flags |= IEEE80211_CHAN_NO_80MHZ;
365 if (!(nvm_flags & NVM_CHANNEL_160MHZ))
366 flags |= IEEE80211_CHAN_NO_160MHZ;
367
368 if (!(nvm_flags & NVM_CHANNEL_IBSS))
369 flags |= IEEE80211_CHAN_NO_IR;
370
371 if (!(nvm_flags & NVM_CHANNEL_ACTIVE))
372 flags |= IEEE80211_CHAN_NO_IR;
373
374 if (nvm_flags & NVM_CHANNEL_RADAR)
375 flags |= IEEE80211_CHAN_RADAR;
376
377 if (nvm_flags & NVM_CHANNEL_INDOOR_ONLY)
378 flags |= IEEE80211_CHAN_INDOOR_ONLY;
379
380 /* Set the GO concurrent flag only in case that NO_IR is set.
381 * Otherwise it is meaningless
382 */
383 if ((nvm_flags & NVM_CHANNEL_GO_CONCURRENT) &&
384 (flags & IEEE80211_CHAN_NO_IR))
385 flags |= IEEE80211_CHAN_IR_CONCURRENT;
386
387 return flags;
388 }
389
iwl_nl80211_band_from_channel_idx(int ch_idx)390 static enum nl80211_band iwl_nl80211_band_from_channel_idx(int ch_idx)
391 {
392 if (ch_idx >= NUM_2GHZ_CHANNELS)
393 return NL80211_BAND_5GHZ;
394 return NL80211_BAND_2GHZ;
395 }
396
iwl_init_channel_map(struct device * dev,const struct iwl_cfg * cfg,struct iwl_nvm_data * data,const void * const nvm_ch_flags,u32 sbands_flags,bool v4)397 static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
398 struct iwl_nvm_data *data,
399 const void * const nvm_ch_flags,
400 u32 sbands_flags, bool v4)
401 {
402 int ch_idx;
403 int n_channels = 0;
404 struct ieee80211_channel *channel;
405 u32 ch_flags;
406 int num_of_ch;
407 const u16 *nvm_chan;
408
409 if (cfg->uhb_supported) {
410 num_of_ch = IWL_NVM_NUM_CHANNELS_UHB;
411 nvm_chan = iwl_uhb_nvm_channels;
412 } else if (cfg->nvm_type == IWL_NVM_EXT) {
413 num_of_ch = IWL_NVM_NUM_CHANNELS_EXT;
414 nvm_chan = iwl_ext_nvm_channels;
415 } else {
416 num_of_ch = IWL_NVM_NUM_CHANNELS;
417 nvm_chan = iwl_nvm_channels;
418 }
419
420 for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) {
421 enum nl80211_band band =
422 iwl_nl80211_band_from_channel_idx(ch_idx);
423
424 if (v4)
425 ch_flags =
426 __le32_to_cpup((__le32 *)nvm_ch_flags + ch_idx);
427 else
428 ch_flags =
429 __le16_to_cpup((__le16 *)nvm_ch_flags + ch_idx);
430
431 if (band == NL80211_BAND_5GHZ &&
432 !data->sku_cap_band_52ghz_enable)
433 continue;
434
435 /* workaround to disable wide channels in 5GHz */
436 if ((sbands_flags & IWL_NVM_SBANDS_FLAGS_NO_WIDE_IN_5GHZ) &&
437 band == NL80211_BAND_5GHZ) {
438 ch_flags &= ~(NVM_CHANNEL_40MHZ |
439 NVM_CHANNEL_80MHZ |
440 NVM_CHANNEL_160MHZ);
441 }
442
443 if (ch_flags & NVM_CHANNEL_160MHZ)
444 data->vht160_supported = true;
445
446 if (!(sbands_flags & IWL_NVM_SBANDS_FLAGS_LAR) &&
447 !(ch_flags & NVM_CHANNEL_VALID)) {
448 /*
449 * Channels might become valid later if lar is
450 * supported, hence we still want to add them to
451 * the list of supported channels to cfg80211.
452 */
453 iwl_nvm_print_channel_flags(dev, IWL_DL_EEPROM,
454 nvm_chan[ch_idx], ch_flags);
455 continue;
456 }
457
458 channel = &data->channels[n_channels];
459 n_channels++;
460
461 channel->hw_value = nvm_chan[ch_idx];
462 channel->band = band;
463 channel->center_freq =
464 ieee80211_channel_to_frequency(
465 channel->hw_value, channel->band);
466
467 /* Initialize regulatory-based run-time data */
468
469 /*
470 * Default value - highest tx power value. max_power
471 * is not used in mvm, and is used for backwards compatibility
472 */
473 channel->max_power = IWL_DEFAULT_MAX_TX_POWER;
474
475 /* don't put limitations in case we're using LAR */
476 if (!(sbands_flags & IWL_NVM_SBANDS_FLAGS_LAR))
477 channel->flags = iwl_get_channel_flags(nvm_chan[ch_idx],
478 ch_idx, band,
479 ch_flags, cfg);
480 else
481 channel->flags = 0;
482
483 iwl_nvm_print_channel_flags(dev, IWL_DL_EEPROM,
484 channel->hw_value, ch_flags);
485 IWL_DEBUG_EEPROM(dev, "Ch. %d: %ddBm\n",
486 channel->hw_value, channel->max_power);
487 }
488
489 return n_channels;
490 }
491
iwl_init_vht_hw_capab(struct iwl_trans * trans,struct iwl_nvm_data * data,struct ieee80211_sta_vht_cap * vht_cap,u8 tx_chains,u8 rx_chains)492 static void iwl_init_vht_hw_capab(struct iwl_trans *trans,
493 struct iwl_nvm_data *data,
494 struct ieee80211_sta_vht_cap *vht_cap,
495 u8 tx_chains, u8 rx_chains)
496 {
497 const struct iwl_cfg *cfg = trans->cfg;
498 int num_rx_ants = num_of_ant(rx_chains);
499 int num_tx_ants = num_of_ant(tx_chains);
500 unsigned int max_ampdu_exponent = (cfg->max_vht_ampdu_exponent ?:
501 IEEE80211_VHT_MAX_AMPDU_1024K);
502
503 vht_cap->vht_supported = true;
504
505 vht_cap->cap = IEEE80211_VHT_CAP_SHORT_GI_80 |
506 IEEE80211_VHT_CAP_RXSTBC_1 |
507 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
508 3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT |
509 max_ampdu_exponent <<
510 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
511
512 if (data->vht160_supported)
513 vht_cap->cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
514 IEEE80211_VHT_CAP_SHORT_GI_160;
515
516 if (cfg->vht_mu_mimo_supported)
517 vht_cap->cap |= IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE;
518
519 if (cfg->ht_params->ldpc)
520 vht_cap->cap |= IEEE80211_VHT_CAP_RXLDPC;
521
522 if (data->sku_cap_mimo_disabled) {
523 num_rx_ants = 1;
524 num_tx_ants = 1;
525 }
526
527 if (num_tx_ants > 1)
528 vht_cap->cap |= IEEE80211_VHT_CAP_TXSTBC;
529 else
530 vht_cap->cap |= IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN;
531
532 switch (iwlwifi_mod_params.amsdu_size) {
533 case IWL_AMSDU_DEF:
534 if (trans->trans_cfg->mq_rx_supported)
535 vht_cap->cap |=
536 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454;
537 else
538 vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895;
539 break;
540 case IWL_AMSDU_2K:
541 if (trans->trans_cfg->mq_rx_supported)
542 vht_cap->cap |=
543 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454;
544 else
545 WARN(1, "RB size of 2K is not supported by this device\n");
546 break;
547 case IWL_AMSDU_4K:
548 vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895;
549 break;
550 case IWL_AMSDU_8K:
551 vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991;
552 break;
553 case IWL_AMSDU_12K:
554 vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454;
555 break;
556 default:
557 break;
558 }
559
560 vht_cap->vht_mcs.rx_mcs_map =
561 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
562 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
563 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
564 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
565 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
566 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
567 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
568 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14);
569
570 if (num_rx_ants == 1 || cfg->rx_with_siso_diversity) {
571 vht_cap->cap |= IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN;
572 /* this works because NOT_SUPPORTED == 3 */
573 vht_cap->vht_mcs.rx_mcs_map |=
574 cpu_to_le16(IEEE80211_VHT_MCS_NOT_SUPPORTED << 2);
575 }
576
577 vht_cap->vht_mcs.tx_mcs_map = vht_cap->vht_mcs.rx_mcs_map;
578
579 vht_cap->vht_mcs.tx_highest |=
580 cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE);
581 }
582
583 static struct ieee80211_sband_iftype_data iwl_he_capa[] = {
584 {
585 .types_mask = BIT(NL80211_IFTYPE_STATION),
586 .he_cap = {
587 .has_he = true,
588 .he_cap_elem = {
589 .mac_cap_info[0] =
590 IEEE80211_HE_MAC_CAP0_HTC_HE |
591 IEEE80211_HE_MAC_CAP0_TWT_REQ,
592 .mac_cap_info[1] =
593 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
594 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
595 .mac_cap_info[2] =
596 IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP,
597 .mac_cap_info[3] =
598 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
599 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2,
600 .mac_cap_info[4] =
601 IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU |
602 IEEE80211_HE_MAC_CAP4_MULTI_TID_AGG_TX_QOS_B39,
603 .mac_cap_info[5] =
604 IEEE80211_HE_MAC_CAP5_MULTI_TID_AGG_TX_QOS_B40 |
605 IEEE80211_HE_MAC_CAP5_MULTI_TID_AGG_TX_QOS_B41 |
606 IEEE80211_HE_MAC_CAP5_UL_2x996_TONE_RU |
607 IEEE80211_HE_MAC_CAP5_HE_DYNAMIC_SM_PS |
608 IEEE80211_HE_MAC_CAP5_HT_VHT_TRIG_FRAME_RX,
609 .phy_cap_info[0] =
610 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G |
611 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
612 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G,
613 .phy_cap_info[1] =
614 IEEE80211_HE_PHY_CAP1_PREAMBLE_PUNC_RX_MASK |
615 IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
616 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD,
617 .phy_cap_info[2] =
618 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US,
619 .phy_cap_info[3] =
620 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM |
621 IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_1 |
622 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM |
623 IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_1,
624 .phy_cap_info[4] =
625 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE |
626 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_8 |
627 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_8,
628 .phy_cap_info[5] =
629 IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_2 |
630 IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_2,
631 .phy_cap_info[6] =
632 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT,
633 .phy_cap_info[7] =
634 IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_AR |
635 IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI |
636 IEEE80211_HE_PHY_CAP7_MAX_NC_1,
637 .phy_cap_info[8] =
638 IEEE80211_HE_PHY_CAP8_HE_ER_SU_PPDU_4XLTF_AND_08_US_GI |
639 IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G |
640 IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU |
641 IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU |
642 IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996,
643 .phy_cap_info[9] =
644 IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK |
645 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB |
646 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB |
647 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_RESERVED,
648 },
649 /*
650 * Set default Tx/Rx HE MCS NSS Support field.
651 * Indicate support for up to 2 spatial streams and all
652 * MCS, without any special cases
653 */
654 .he_mcs_nss_supp = {
655 .rx_mcs_80 = cpu_to_le16(0xfffa),
656 .tx_mcs_80 = cpu_to_le16(0xfffa),
657 .rx_mcs_160 = cpu_to_le16(0xfffa),
658 .tx_mcs_160 = cpu_to_le16(0xfffa),
659 .rx_mcs_80p80 = cpu_to_le16(0xffff),
660 .tx_mcs_80p80 = cpu_to_le16(0xffff),
661 },
662 /*
663 * Set default PPE thresholds, with PPET16 set to 0,
664 * PPET8 set to 7
665 */
666 .ppe_thres = {0x61, 0x1c, 0xc7, 0x71},
667 },
668 },
669 {
670 .types_mask = BIT(NL80211_IFTYPE_AP),
671 .he_cap = {
672 .has_he = true,
673 .he_cap_elem = {
674 .mac_cap_info[0] =
675 IEEE80211_HE_MAC_CAP0_HTC_HE,
676 .mac_cap_info[1] =
677 IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
678 IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,
679 .mac_cap_info[2] =
680 IEEE80211_HE_MAC_CAP2_BSR,
681 .mac_cap_info[3] =
682 IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
683 IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_VHT_2,
684 .mac_cap_info[4] =
685 IEEE80211_HE_MAC_CAP4_AMDSU_IN_AMPDU,
686 .mac_cap_info[5] =
687 IEEE80211_HE_MAC_CAP5_UL_2x996_TONE_RU,
688 .phy_cap_info[0] =
689 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G |
690 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
691 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G,
692 .phy_cap_info[1] =
693 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD,
694 .phy_cap_info[2] =
695 IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US,
696 .phy_cap_info[3] =
697 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_NO_DCM |
698 IEEE80211_HE_PHY_CAP3_DCM_MAX_TX_NSS_1 |
699 IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_NO_DCM |
700 IEEE80211_HE_PHY_CAP3_DCM_MAX_RX_NSS_1,
701 .phy_cap_info[4] =
702 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE |
703 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_ABOVE_80MHZ_8 |
704 IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_8,
705 .phy_cap_info[5] =
706 IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_UNDER_80MHZ_2 |
707 IEEE80211_HE_PHY_CAP5_BEAMFORMEE_NUM_SND_DIM_ABOVE_80MHZ_2,
708 .phy_cap_info[6] =
709 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT,
710 .phy_cap_info[7] =
711 IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI |
712 IEEE80211_HE_PHY_CAP7_MAX_NC_1,
713 .phy_cap_info[8] =
714 IEEE80211_HE_PHY_CAP8_HE_ER_SU_PPDU_4XLTF_AND_08_US_GI |
715 IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G |
716 IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU |
717 IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU |
718 IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_2x996,
719 .phy_cap_info[9] =
720 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB |
721 IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB |
722 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_RESERVED,
723 },
724 /*
725 * Set default Tx/Rx HE MCS NSS Support field.
726 * Indicate support for up to 2 spatial streams and all
727 * MCS, without any special cases
728 */
729 .he_mcs_nss_supp = {
730 .rx_mcs_80 = cpu_to_le16(0xfffa),
731 .tx_mcs_80 = cpu_to_le16(0xfffa),
732 .rx_mcs_160 = cpu_to_le16(0xfffa),
733 .tx_mcs_160 = cpu_to_le16(0xfffa),
734 .rx_mcs_80p80 = cpu_to_le16(0xffff),
735 .tx_mcs_80p80 = cpu_to_le16(0xffff),
736 },
737 /*
738 * Set default PPE thresholds, with PPET16 set to 0,
739 * PPET8 set to 7
740 */
741 .ppe_thres = {0x61, 0x1c, 0xc7, 0x71},
742 },
743 },
744 };
745
iwl_init_he_hw_capab(struct iwl_trans * trans,struct iwl_nvm_data * data,struct ieee80211_supported_band * sband,u8 tx_chains,u8 rx_chains)746 static void iwl_init_he_hw_capab(struct iwl_trans *trans,
747 struct iwl_nvm_data *data,
748 struct ieee80211_supported_band *sband,
749 u8 tx_chains, u8 rx_chains)
750 {
751 sband->iftype_data = iwl_he_capa;
752 sband->n_iftype_data = ARRAY_SIZE(iwl_he_capa);
753
754 /* If not 2x2, we need to indicate 1x1 in the Midamble RX Max NSTS */
755 if ((tx_chains & rx_chains) != ANT_AB) {
756 int i;
757
758 for (i = 0; i < sband->n_iftype_data; i++) {
759 iwl_he_capa[i].he_cap.he_cap_elem.phy_cap_info[1] &=
760 ~IEEE80211_HE_PHY_CAP1_MIDAMBLE_RX_TX_MAX_NSTS;
761 iwl_he_capa[i].he_cap.he_cap_elem.phy_cap_info[2] &=
762 ~IEEE80211_HE_PHY_CAP2_MIDAMBLE_RX_TX_MAX_NSTS;
763 iwl_he_capa[i].he_cap.he_cap_elem.phy_cap_info[7] &=
764 ~IEEE80211_HE_PHY_CAP7_MAX_NC_MASK;
765 }
766 }
767 }
768
iwl_init_sbands(struct iwl_trans * trans,struct iwl_nvm_data * data,const void * nvm_ch_flags,u8 tx_chains,u8 rx_chains,u32 sbands_flags,bool v4)769 static void iwl_init_sbands(struct iwl_trans *trans,
770 struct iwl_nvm_data *data,
771 const void *nvm_ch_flags, u8 tx_chains,
772 u8 rx_chains, u32 sbands_flags, bool v4)
773 {
774 struct device *dev = trans->dev;
775 const struct iwl_cfg *cfg = trans->cfg;
776 int n_channels;
777 int n_used = 0;
778 struct ieee80211_supported_band *sband;
779
780 n_channels = iwl_init_channel_map(dev, cfg, data, nvm_ch_flags,
781 sbands_flags, v4);
782 sband = &data->bands[NL80211_BAND_2GHZ];
783 sband->band = NL80211_BAND_2GHZ;
784 sband->bitrates = &iwl_cfg80211_rates[RATES_24_OFFS];
785 sband->n_bitrates = N_RATES_24;
786 n_used += iwl_init_sband_channels(data, sband, n_channels,
787 NL80211_BAND_2GHZ);
788 iwl_init_ht_hw_capab(trans, data, &sband->ht_cap, NL80211_BAND_2GHZ,
789 tx_chains, rx_chains);
790
791 if (data->sku_cap_11ax_enable && !iwlwifi_mod_params.disable_11ax)
792 iwl_init_he_hw_capab(trans, data, sband, tx_chains, rx_chains);
793
794 sband = &data->bands[NL80211_BAND_5GHZ];
795 sband->band = NL80211_BAND_5GHZ;
796 sband->bitrates = &iwl_cfg80211_rates[RATES_52_OFFS];
797 sband->n_bitrates = N_RATES_52;
798 n_used += iwl_init_sband_channels(data, sband, n_channels,
799 NL80211_BAND_5GHZ);
800 iwl_init_ht_hw_capab(trans, data, &sband->ht_cap, NL80211_BAND_5GHZ,
801 tx_chains, rx_chains);
802 if (data->sku_cap_11ac_enable && !iwlwifi_mod_params.disable_11ac)
803 iwl_init_vht_hw_capab(trans, data, &sband->vht_cap,
804 tx_chains, rx_chains);
805
806 if (data->sku_cap_11ax_enable && !iwlwifi_mod_params.disable_11ax)
807 iwl_init_he_hw_capab(trans, data, sband, tx_chains, rx_chains);
808
809 if (n_channels != n_used)
810 IWL_ERR_DEV(dev, "NVM: used only %d of %d channels\n",
811 n_used, n_channels);
812 }
813
iwl_get_sku(const struct iwl_cfg * cfg,const __le16 * nvm_sw,const __le16 * phy_sku)814 static int iwl_get_sku(const struct iwl_cfg *cfg, const __le16 *nvm_sw,
815 const __le16 *phy_sku)
816 {
817 if (cfg->nvm_type != IWL_NVM_EXT)
818 return le16_to_cpup(nvm_sw + SKU);
819
820 return le32_to_cpup((__le32 *)(phy_sku + SKU_FAMILY_8000));
821 }
822
iwl_get_nvm_version(const struct iwl_cfg * cfg,const __le16 * nvm_sw)823 static int iwl_get_nvm_version(const struct iwl_cfg *cfg, const __le16 *nvm_sw)
824 {
825 if (cfg->nvm_type != IWL_NVM_EXT)
826 return le16_to_cpup(nvm_sw + NVM_VERSION);
827 else
828 return le32_to_cpup((__le32 *)(nvm_sw +
829 NVM_VERSION_EXT_NVM));
830 }
831
iwl_get_radio_cfg(const struct iwl_cfg * cfg,const __le16 * nvm_sw,const __le16 * phy_sku)832 static int iwl_get_radio_cfg(const struct iwl_cfg *cfg, const __le16 *nvm_sw,
833 const __le16 *phy_sku)
834 {
835 if (cfg->nvm_type != IWL_NVM_EXT)
836 return le16_to_cpup(nvm_sw + RADIO_CFG);
837
838 return le32_to_cpup((__le32 *)(phy_sku + RADIO_CFG_FAMILY_EXT_NVM));
839
840 }
841
iwl_get_n_hw_addrs(const struct iwl_cfg * cfg,const __le16 * nvm_sw)842 static int iwl_get_n_hw_addrs(const struct iwl_cfg *cfg, const __le16 *nvm_sw)
843 {
844 int n_hw_addr;
845
846 if (cfg->nvm_type != IWL_NVM_EXT)
847 return le16_to_cpup(nvm_sw + N_HW_ADDRS);
848
849 n_hw_addr = le32_to_cpup((__le32 *)(nvm_sw + N_HW_ADDRS_FAMILY_8000));
850
851 return n_hw_addr & N_HW_ADDR_MASK;
852 }
853
iwl_set_radio_cfg(const struct iwl_cfg * cfg,struct iwl_nvm_data * data,u32 radio_cfg)854 static void iwl_set_radio_cfg(const struct iwl_cfg *cfg,
855 struct iwl_nvm_data *data,
856 u32 radio_cfg)
857 {
858 if (cfg->nvm_type != IWL_NVM_EXT) {
859 data->radio_cfg_type = NVM_RF_CFG_TYPE_MSK(radio_cfg);
860 data->radio_cfg_step = NVM_RF_CFG_STEP_MSK(radio_cfg);
861 data->radio_cfg_dash = NVM_RF_CFG_DASH_MSK(radio_cfg);
862 data->radio_cfg_pnum = NVM_RF_CFG_PNUM_MSK(radio_cfg);
863 return;
864 }
865
866 /* set the radio configuration for family 8000 */
867 data->radio_cfg_type = EXT_NVM_RF_CFG_TYPE_MSK(radio_cfg);
868 data->radio_cfg_step = EXT_NVM_RF_CFG_STEP_MSK(radio_cfg);
869 data->radio_cfg_dash = EXT_NVM_RF_CFG_DASH_MSK(radio_cfg);
870 data->radio_cfg_pnum = EXT_NVM_RF_CFG_FLAVOR_MSK(radio_cfg);
871 data->valid_tx_ant = EXT_NVM_RF_CFG_TX_ANT_MSK(radio_cfg);
872 data->valid_rx_ant = EXT_NVM_RF_CFG_RX_ANT_MSK(radio_cfg);
873 }
874
iwl_flip_hw_address(__le32 mac_addr0,__le32 mac_addr1,u8 * dest)875 static void iwl_flip_hw_address(__le32 mac_addr0, __le32 mac_addr1, u8 *dest)
876 {
877 const u8 *hw_addr;
878
879 hw_addr = (const u8 *)&mac_addr0;
880 dest[0] = hw_addr[3];
881 dest[1] = hw_addr[2];
882 dest[2] = hw_addr[1];
883 dest[3] = hw_addr[0];
884
885 hw_addr = (const u8 *)&mac_addr1;
886 dest[4] = hw_addr[1];
887 dest[5] = hw_addr[0];
888 }
889
iwl_set_hw_address_from_csr(struct iwl_trans * trans,struct iwl_nvm_data * data)890 static void iwl_set_hw_address_from_csr(struct iwl_trans *trans,
891 struct iwl_nvm_data *data)
892 {
893 __le32 mac_addr0 = cpu_to_le32(iwl_read32(trans, CSR_MAC_ADDR0_STRAP));
894 __le32 mac_addr1 = cpu_to_le32(iwl_read32(trans, CSR_MAC_ADDR1_STRAP));
895
896 iwl_flip_hw_address(mac_addr0, mac_addr1, data->hw_addr);
897 /*
898 * If the OEM fused a valid address, use it instead of the one in the
899 * OTP
900 */
901 if (is_valid_ether_addr(data->hw_addr))
902 return;
903
904 mac_addr0 = cpu_to_le32(iwl_read32(trans, CSR_MAC_ADDR0_OTP));
905 mac_addr1 = cpu_to_le32(iwl_read32(trans, CSR_MAC_ADDR1_OTP));
906
907 iwl_flip_hw_address(mac_addr0, mac_addr1, data->hw_addr);
908 }
909
iwl_set_hw_address_family_8000(struct iwl_trans * trans,const struct iwl_cfg * cfg,struct iwl_nvm_data * data,const __le16 * mac_override,const __be16 * nvm_hw)910 static void iwl_set_hw_address_family_8000(struct iwl_trans *trans,
911 const struct iwl_cfg *cfg,
912 struct iwl_nvm_data *data,
913 const __le16 *mac_override,
914 const __be16 *nvm_hw)
915 {
916 const u8 *hw_addr;
917
918 if (mac_override) {
919 static const u8 reserved_mac[] = {
920 0x02, 0xcc, 0xaa, 0xff, 0xee, 0x00
921 };
922
923 hw_addr = (const u8 *)(mac_override +
924 MAC_ADDRESS_OVERRIDE_EXT_NVM);
925
926 /*
927 * Store the MAC address from MAO section.
928 * No byte swapping is required in MAO section
929 */
930 memcpy(data->hw_addr, hw_addr, ETH_ALEN);
931
932 /*
933 * Force the use of the OTP MAC address in case of reserved MAC
934 * address in the NVM, or if address is given but invalid.
935 */
936 if (is_valid_ether_addr(data->hw_addr) &&
937 memcmp(reserved_mac, hw_addr, ETH_ALEN) != 0)
938 return;
939
940 IWL_ERR(trans,
941 "mac address from nvm override section is not valid\n");
942 }
943
944 if (nvm_hw) {
945 /* read the mac address from WFMP registers */
946 __le32 mac_addr0 = cpu_to_le32(iwl_trans_read_prph(trans,
947 WFMP_MAC_ADDR_0));
948 __le32 mac_addr1 = cpu_to_le32(iwl_trans_read_prph(trans,
949 WFMP_MAC_ADDR_1));
950
951 iwl_flip_hw_address(mac_addr0, mac_addr1, data->hw_addr);
952
953 return;
954 }
955
956 IWL_ERR(trans, "mac address is not found\n");
957 }
958
iwl_set_hw_address(struct iwl_trans * trans,const struct iwl_cfg * cfg,struct iwl_nvm_data * data,const __be16 * nvm_hw,const __le16 * mac_override)959 static int iwl_set_hw_address(struct iwl_trans *trans,
960 const struct iwl_cfg *cfg,
961 struct iwl_nvm_data *data, const __be16 *nvm_hw,
962 const __le16 *mac_override)
963 {
964 if (cfg->mac_addr_from_csr) {
965 iwl_set_hw_address_from_csr(trans, data);
966 } else if (cfg->nvm_type != IWL_NVM_EXT) {
967 const u8 *hw_addr = (const u8 *)(nvm_hw + HW_ADDR);
968
969 /* The byte order is little endian 16 bit, meaning 214365 */
970 data->hw_addr[0] = hw_addr[1];
971 data->hw_addr[1] = hw_addr[0];
972 data->hw_addr[2] = hw_addr[3];
973 data->hw_addr[3] = hw_addr[2];
974 data->hw_addr[4] = hw_addr[5];
975 data->hw_addr[5] = hw_addr[4];
976 } else {
977 iwl_set_hw_address_family_8000(trans, cfg, data,
978 mac_override, nvm_hw);
979 }
980
981 if (!is_valid_ether_addr(data->hw_addr)) {
982 IWL_ERR(trans, "no valid mac address was found\n");
983 return -EINVAL;
984 }
985
986 IWL_INFO(trans, "base HW address: %pM\n", data->hw_addr);
987
988 return 0;
989 }
990
991 static bool
iwl_nvm_no_wide_in_5ghz(struct iwl_trans * trans,const struct iwl_cfg * cfg,const __be16 * nvm_hw)992 iwl_nvm_no_wide_in_5ghz(struct iwl_trans *trans, const struct iwl_cfg *cfg,
993 const __be16 *nvm_hw)
994 {
995 /*
996 * Workaround a bug in Indonesia SKUs where the regulatory in
997 * some 7000-family OTPs erroneously allow wide channels in
998 * 5GHz. To check for Indonesia, we take the SKU value from
999 * bits 1-4 in the subsystem ID and check if it is either 5 or
1000 * 9. In those cases, we need to force-disable wide channels
1001 * in 5GHz otherwise the FW will throw a sysassert when we try
1002 * to use them.
1003 */
1004 if (trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_7000) {
1005 /*
1006 * Unlike the other sections in the NVM, the hw
1007 * section uses big-endian.
1008 */
1009 u16 subsystem_id = be16_to_cpup(nvm_hw + SUBSYSTEM_ID);
1010 u8 sku = (subsystem_id & 0x1e) >> 1;
1011
1012 if (sku == 5 || sku == 9) {
1013 IWL_DEBUG_EEPROM(trans->dev,
1014 "disabling wide channels in 5GHz (0x%0x %d)\n",
1015 subsystem_id, sku);
1016 return true;
1017 }
1018 }
1019
1020 return false;
1021 }
1022
1023 struct iwl_nvm_data *
iwl_parse_nvm_data(struct iwl_trans * trans,const struct iwl_cfg * cfg,const struct iwl_fw * fw,const __be16 * nvm_hw,const __le16 * nvm_sw,const __le16 * nvm_calib,const __le16 * regulatory,const __le16 * mac_override,const __le16 * phy_sku,u8 tx_chains,u8 rx_chains)1024 iwl_parse_nvm_data(struct iwl_trans *trans, const struct iwl_cfg *cfg,
1025 const struct iwl_fw *fw,
1026 const __be16 *nvm_hw, const __le16 *nvm_sw,
1027 const __le16 *nvm_calib, const __le16 *regulatory,
1028 const __le16 *mac_override, const __le16 *phy_sku,
1029 u8 tx_chains, u8 rx_chains)
1030 {
1031 struct iwl_nvm_data *data;
1032 bool lar_enabled;
1033 u32 sku, radio_cfg;
1034 u32 sbands_flags = 0;
1035 u16 lar_config;
1036 const __le16 *ch_section;
1037
1038 if (cfg->uhb_supported)
1039 data = kzalloc(struct_size(data, channels,
1040 IWL_NVM_NUM_CHANNELS_UHB),
1041 GFP_KERNEL);
1042 else if (cfg->nvm_type != IWL_NVM_EXT)
1043 data = kzalloc(struct_size(data, channels,
1044 IWL_NVM_NUM_CHANNELS),
1045 GFP_KERNEL);
1046 else
1047 data = kzalloc(struct_size(data, channels,
1048 IWL_NVM_NUM_CHANNELS_EXT),
1049 GFP_KERNEL);
1050 if (!data)
1051 return NULL;
1052
1053 data->nvm_version = iwl_get_nvm_version(cfg, nvm_sw);
1054
1055 radio_cfg = iwl_get_radio_cfg(cfg, nvm_sw, phy_sku);
1056 iwl_set_radio_cfg(cfg, data, radio_cfg);
1057 if (data->valid_tx_ant)
1058 tx_chains &= data->valid_tx_ant;
1059 if (data->valid_rx_ant)
1060 rx_chains &= data->valid_rx_ant;
1061
1062 sku = iwl_get_sku(cfg, nvm_sw, phy_sku);
1063 data->sku_cap_band_24ghz_enable = sku & NVM_SKU_CAP_BAND_24GHZ;
1064 data->sku_cap_band_52ghz_enable = sku & NVM_SKU_CAP_BAND_52GHZ;
1065 data->sku_cap_11n_enable = sku & NVM_SKU_CAP_11N_ENABLE;
1066 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_ALL)
1067 data->sku_cap_11n_enable = false;
1068 data->sku_cap_11ac_enable = data->sku_cap_11n_enable &&
1069 (sku & NVM_SKU_CAP_11AC_ENABLE);
1070 data->sku_cap_mimo_disabled = sku & NVM_SKU_CAP_MIMO_DISABLE;
1071
1072 data->n_hw_addrs = iwl_get_n_hw_addrs(cfg, nvm_sw);
1073
1074 if (cfg->nvm_type != IWL_NVM_EXT) {
1075 /* Checking for required sections */
1076 if (!nvm_calib) {
1077 IWL_ERR(trans,
1078 "Can't parse empty Calib NVM sections\n");
1079 kfree(data);
1080 return NULL;
1081 }
1082
1083 ch_section = cfg->nvm_type == IWL_NVM_SDP ?
1084 ®ulatory[NVM_CHANNELS_SDP] :
1085 &nvm_sw[NVM_CHANNELS];
1086
1087 /* in family 8000 Xtal calibration values moved to OTP */
1088 data->xtal_calib[0] = *(nvm_calib + XTAL_CALIB);
1089 data->xtal_calib[1] = *(nvm_calib + XTAL_CALIB + 1);
1090 lar_enabled = true;
1091 } else {
1092 u16 lar_offset = data->nvm_version < 0xE39 ?
1093 NVM_LAR_OFFSET_OLD :
1094 NVM_LAR_OFFSET;
1095
1096 lar_config = le16_to_cpup(regulatory + lar_offset);
1097 data->lar_enabled = !!(lar_config &
1098 NVM_LAR_ENABLED);
1099 lar_enabled = data->lar_enabled;
1100 ch_section = ®ulatory[NVM_CHANNELS_EXTENDED];
1101 }
1102
1103 /* If no valid mac address was found - bail out */
1104 if (iwl_set_hw_address(trans, cfg, data, nvm_hw, mac_override)) {
1105 kfree(data);
1106 return NULL;
1107 }
1108
1109 if (lar_enabled &&
1110 fw_has_capa(&fw->ucode_capa, IWL_UCODE_TLV_CAPA_LAR_SUPPORT))
1111 sbands_flags |= IWL_NVM_SBANDS_FLAGS_LAR;
1112
1113 if (iwl_nvm_no_wide_in_5ghz(trans, cfg, nvm_hw))
1114 sbands_flags |= IWL_NVM_SBANDS_FLAGS_NO_WIDE_IN_5GHZ;
1115
1116 iwl_init_sbands(trans, data, ch_section, tx_chains, rx_chains,
1117 sbands_flags, false);
1118 data->calib_version = 255;
1119
1120 return data;
1121 }
1122 IWL_EXPORT_SYMBOL(iwl_parse_nvm_data);
1123
iwl_nvm_get_regdom_bw_flags(const u16 * nvm_chan,int ch_idx,u16 nvm_flags,struct iwl_reg_capa reg_capa,const struct iwl_cfg * cfg)1124 static u32 iwl_nvm_get_regdom_bw_flags(const u16 *nvm_chan,
1125 int ch_idx, u16 nvm_flags,
1126 struct iwl_reg_capa reg_capa,
1127 const struct iwl_cfg *cfg)
1128 {
1129 u32 flags = NL80211_RRF_NO_HT40;
1130
1131 if (ch_idx < NUM_2GHZ_CHANNELS &&
1132 (nvm_flags & NVM_CHANNEL_40MHZ)) {
1133 if (nvm_chan[ch_idx] <= LAST_2GHZ_HT_PLUS)
1134 flags &= ~NL80211_RRF_NO_HT40PLUS;
1135 if (nvm_chan[ch_idx] >= FIRST_2GHZ_HT_MINUS)
1136 flags &= ~NL80211_RRF_NO_HT40MINUS;
1137 } else if (nvm_flags & NVM_CHANNEL_40MHZ) {
1138 if ((ch_idx - NUM_2GHZ_CHANNELS) % 2 == 0)
1139 flags &= ~NL80211_RRF_NO_HT40PLUS;
1140 else
1141 flags &= ~NL80211_RRF_NO_HT40MINUS;
1142 }
1143
1144 if (!(nvm_flags & NVM_CHANNEL_80MHZ))
1145 flags |= NL80211_RRF_NO_80MHZ;
1146 if (!(nvm_flags & NVM_CHANNEL_160MHZ))
1147 flags |= NL80211_RRF_NO_160MHZ;
1148
1149 if (!(nvm_flags & NVM_CHANNEL_ACTIVE))
1150 flags |= NL80211_RRF_NO_IR;
1151
1152 if (nvm_flags & NVM_CHANNEL_RADAR)
1153 flags |= NL80211_RRF_DFS;
1154
1155 if (nvm_flags & NVM_CHANNEL_INDOOR_ONLY)
1156 flags |= NL80211_RRF_NO_OUTDOOR;
1157
1158 /* Set the GO concurrent flag only in case that NO_IR is set.
1159 * Otherwise it is meaningless
1160 */
1161 if ((nvm_flags & NVM_CHANNEL_GO_CONCURRENT) &&
1162 (flags & NL80211_RRF_NO_IR))
1163 flags |= NL80211_RRF_GO_CONCURRENT;
1164
1165 /*
1166 * reg_capa is per regulatory domain so apply it for every channel
1167 */
1168 if (ch_idx >= NUM_2GHZ_CHANNELS) {
1169 if (!reg_capa.allow_40mhz)
1170 flags |= NL80211_RRF_NO_HT40;
1171
1172 if (!reg_capa.allow_80mhz)
1173 flags |= NL80211_RRF_NO_80MHZ;
1174
1175 if (!reg_capa.allow_160mhz)
1176 flags |= NL80211_RRF_NO_160MHZ;
1177 }
1178 if (reg_capa.disable_11ax)
1179 flags |= NL80211_RRF_NO_HE;
1180
1181 return flags;
1182 }
1183
iwl_get_reg_capa(u16 flags,u8 resp_ver)1184 static struct iwl_reg_capa iwl_get_reg_capa(u16 flags, u8 resp_ver)
1185 {
1186 struct iwl_reg_capa reg_capa;
1187
1188 if (resp_ver >= REG_CAPA_V2_RESP_VER) {
1189 reg_capa.allow_40mhz = flags & REG_CAPA_V2_40MHZ_ALLOWED;
1190 reg_capa.allow_80mhz = flags & REG_CAPA_V2_80MHZ_ALLOWED;
1191 reg_capa.allow_160mhz = flags & REG_CAPA_V2_160MHZ_ALLOWED;
1192 reg_capa.disable_11ax = flags & REG_CAPA_V2_11AX_DISABLED;
1193 } else {
1194 reg_capa.allow_40mhz = !(flags & REG_CAPA_40MHZ_FORBIDDEN);
1195 reg_capa.allow_80mhz = flags & REG_CAPA_80MHZ_ALLOWED;
1196 reg_capa.allow_160mhz = flags & REG_CAPA_160MHZ_ALLOWED;
1197 reg_capa.disable_11ax = flags & REG_CAPA_11AX_DISABLED;
1198 }
1199 return reg_capa;
1200 }
1201
1202 struct ieee80211_regdomain *
iwl_parse_nvm_mcc_info(struct device * dev,const struct iwl_cfg * cfg,int num_of_ch,__le32 * channels,u16 fw_mcc,u16 geo_info,u16 cap,u8 resp_ver)1203 iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
1204 int num_of_ch, __le32 *channels, u16 fw_mcc,
1205 u16 geo_info, u16 cap, u8 resp_ver)
1206 {
1207 int ch_idx;
1208 u16 ch_flags;
1209 u32 reg_rule_flags, prev_reg_rule_flags = 0;
1210 const u16 *nvm_chan;
1211 struct ieee80211_regdomain *regd, *copy_rd;
1212 struct ieee80211_reg_rule *rule;
1213 enum nl80211_band band;
1214 int center_freq, prev_center_freq = 0;
1215 int valid_rules = 0;
1216 bool new_rule;
1217 int max_num_ch;
1218 struct iwl_reg_capa reg_capa;
1219
1220 if (cfg->uhb_supported) {
1221 max_num_ch = IWL_NVM_NUM_CHANNELS_UHB;
1222 nvm_chan = iwl_uhb_nvm_channels;
1223 } else if (cfg->nvm_type == IWL_NVM_EXT) {
1224 max_num_ch = IWL_NVM_NUM_CHANNELS_EXT;
1225 nvm_chan = iwl_ext_nvm_channels;
1226 } else {
1227 max_num_ch = IWL_NVM_NUM_CHANNELS;
1228 nvm_chan = iwl_nvm_channels;
1229 }
1230
1231 if (WARN_ON(num_of_ch > max_num_ch))
1232 num_of_ch = max_num_ch;
1233
1234 if (WARN_ON_ONCE(num_of_ch > NL80211_MAX_SUPP_REG_RULES))
1235 return ERR_PTR(-EINVAL);
1236
1237 IWL_DEBUG_DEV(dev, IWL_DL_LAR, "building regdom for %d channels\n",
1238 num_of_ch);
1239
1240 /* build a regdomain rule for every valid channel */
1241 regd = kzalloc(struct_size(regd, reg_rules, num_of_ch), GFP_KERNEL);
1242 if (!regd)
1243 return ERR_PTR(-ENOMEM);
1244
1245 /* set alpha2 from FW. */
1246 regd->alpha2[0] = fw_mcc >> 8;
1247 regd->alpha2[1] = fw_mcc & 0xff;
1248
1249 /* parse regulatory capability flags */
1250 reg_capa = iwl_get_reg_capa(cap, resp_ver);
1251
1252 for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) {
1253 ch_flags = (u16)__le32_to_cpup(channels + ch_idx);
1254 band = iwl_nl80211_band_from_channel_idx(ch_idx);
1255 center_freq = ieee80211_channel_to_frequency(nvm_chan[ch_idx],
1256 band);
1257 new_rule = false;
1258
1259 if (!(ch_flags & NVM_CHANNEL_VALID)) {
1260 iwl_nvm_print_channel_flags(dev, IWL_DL_LAR,
1261 nvm_chan[ch_idx], ch_flags);
1262 continue;
1263 }
1264
1265 reg_rule_flags = iwl_nvm_get_regdom_bw_flags(nvm_chan, ch_idx,
1266 ch_flags, reg_capa,
1267 cfg);
1268
1269 /* we can't continue the same rule */
1270 if (ch_idx == 0 || prev_reg_rule_flags != reg_rule_flags ||
1271 center_freq - prev_center_freq > 20) {
1272 valid_rules++;
1273 new_rule = true;
1274 }
1275
1276 rule = ®d->reg_rules[valid_rules - 1];
1277
1278 if (new_rule)
1279 rule->freq_range.start_freq_khz =
1280 MHZ_TO_KHZ(center_freq - 10);
1281
1282 rule->freq_range.end_freq_khz = MHZ_TO_KHZ(center_freq + 10);
1283
1284 /* this doesn't matter - not used by FW */
1285 rule->power_rule.max_antenna_gain = DBI_TO_MBI(6);
1286 rule->power_rule.max_eirp =
1287 DBM_TO_MBM(IWL_DEFAULT_MAX_TX_POWER);
1288
1289 rule->flags = reg_rule_flags;
1290
1291 /* rely on auto-calculation to merge BW of contiguous chans */
1292 rule->flags |= NL80211_RRF_AUTO_BW;
1293 rule->freq_range.max_bandwidth_khz = 0;
1294
1295 prev_center_freq = center_freq;
1296 prev_reg_rule_flags = reg_rule_flags;
1297
1298 iwl_nvm_print_channel_flags(dev, IWL_DL_LAR,
1299 nvm_chan[ch_idx], ch_flags);
1300
1301 if (!(geo_info & GEO_WMM_ETSI_5GHZ_INFO) ||
1302 band == NL80211_BAND_2GHZ)
1303 continue;
1304
1305 reg_query_regdb_wmm(regd->alpha2, center_freq, rule);
1306 }
1307
1308 regd->n_reg_rules = valid_rules;
1309
1310 /*
1311 * Narrow down regdom for unused regulatory rules to prevent hole
1312 * between reg rules to wmm rules.
1313 */
1314 copy_rd = kmemdup(regd, struct_size(regd, reg_rules, valid_rules),
1315 GFP_KERNEL);
1316 if (!copy_rd)
1317 copy_rd = ERR_PTR(-ENOMEM);
1318
1319 kfree(regd);
1320 return copy_rd;
1321 }
1322 IWL_EXPORT_SYMBOL(iwl_parse_nvm_mcc_info);
1323
1324 #define IWL_MAX_NVM_SECTION_SIZE 0x1b58
1325 #define IWL_MAX_EXT_NVM_SECTION_SIZE 0x1ffc
1326 #define MAX_NVM_FILE_LEN 16384
1327
iwl_nvm_fixups(u32 hw_id,unsigned int section,u8 * data,unsigned int len)1328 void iwl_nvm_fixups(u32 hw_id, unsigned int section, u8 *data,
1329 unsigned int len)
1330 {
1331 #define IWL_4165_DEVICE_ID 0x5501
1332 #define NVM_SKU_CAP_MIMO_DISABLE BIT(5)
1333
1334 if (section == NVM_SECTION_TYPE_PHY_SKU &&
1335 hw_id == IWL_4165_DEVICE_ID && data && len >= 5 &&
1336 (data[4] & NVM_SKU_CAP_MIMO_DISABLE))
1337 /* OTP 0x52 bug work around: it's a 1x1 device */
1338 data[3] = ANT_B | (ANT_B << 4);
1339 }
1340 IWL_EXPORT_SYMBOL(iwl_nvm_fixups);
1341
1342 /*
1343 * Reads external NVM from a file into mvm->nvm_sections
1344 *
1345 * HOW TO CREATE THE NVM FILE FORMAT:
1346 * ------------------------------
1347 * 1. create hex file, format:
1348 * 3800 -> header
1349 * 0000 -> header
1350 * 5a40 -> data
1351 *
1352 * rev - 6 bit (word1)
1353 * len - 10 bit (word1)
1354 * id - 4 bit (word2)
1355 * rsv - 12 bit (word2)
1356 *
1357 * 2. flip 8bits with 8 bits per line to get the right NVM file format
1358 *
1359 * 3. create binary file from the hex file
1360 *
1361 * 4. save as "iNVM_xxx.bin" under /lib/firmware
1362 */
iwl_read_external_nvm(struct iwl_trans * trans,const char * nvm_file_name,struct iwl_nvm_section * nvm_sections)1363 int iwl_read_external_nvm(struct iwl_trans *trans,
1364 const char *nvm_file_name,
1365 struct iwl_nvm_section *nvm_sections)
1366 {
1367 int ret, section_size;
1368 u16 section_id;
1369 const struct firmware *fw_entry;
1370 const struct {
1371 __le16 word1;
1372 __le16 word2;
1373 u8 data[];
1374 } *file_sec;
1375 const u8 *eof;
1376 u8 *temp;
1377 int max_section_size;
1378 const __le32 *dword_buff;
1379
1380 #define NVM_WORD1_LEN(x) (8 * (x & 0x03FF))
1381 #define NVM_WORD2_ID(x) (x >> 12)
1382 #define EXT_NVM_WORD2_LEN(x) (2 * (((x) & 0xFF) << 8 | (x) >> 8))
1383 #define EXT_NVM_WORD1_ID(x) ((x) >> 4)
1384 #define NVM_HEADER_0 (0x2A504C54)
1385 #define NVM_HEADER_1 (0x4E564D2A)
1386 #define NVM_HEADER_SIZE (4 * sizeof(u32))
1387
1388 IWL_DEBUG_EEPROM(trans->dev, "Read from external NVM\n");
1389
1390 /* Maximal size depends on NVM version */
1391 if (trans->cfg->nvm_type != IWL_NVM_EXT)
1392 max_section_size = IWL_MAX_NVM_SECTION_SIZE;
1393 else
1394 max_section_size = IWL_MAX_EXT_NVM_SECTION_SIZE;
1395
1396 /*
1397 * Obtain NVM image via request_firmware. Since we already used
1398 * request_firmware_nowait() for the firmware binary load and only
1399 * get here after that we assume the NVM request can be satisfied
1400 * synchronously.
1401 */
1402 ret = request_firmware(&fw_entry, nvm_file_name, trans->dev);
1403 if (ret) {
1404 IWL_ERR(trans, "ERROR: %s isn't available %d\n",
1405 nvm_file_name, ret);
1406 return ret;
1407 }
1408
1409 IWL_INFO(trans, "Loaded NVM file %s (%zu bytes)\n",
1410 nvm_file_name, fw_entry->size);
1411
1412 if (fw_entry->size > MAX_NVM_FILE_LEN) {
1413 IWL_ERR(trans, "NVM file too large\n");
1414 ret = -EINVAL;
1415 goto out;
1416 }
1417
1418 eof = fw_entry->data + fw_entry->size;
1419 dword_buff = (__le32 *)fw_entry->data;
1420
1421 /* some NVM file will contain a header.
1422 * The header is identified by 2 dwords header as follow:
1423 * dword[0] = 0x2A504C54
1424 * dword[1] = 0x4E564D2A
1425 *
1426 * This header must be skipped when providing the NVM data to the FW.
1427 */
1428 if (fw_entry->size > NVM_HEADER_SIZE &&
1429 dword_buff[0] == cpu_to_le32(NVM_HEADER_0) &&
1430 dword_buff[1] == cpu_to_le32(NVM_HEADER_1)) {
1431 file_sec = (void *)(fw_entry->data + NVM_HEADER_SIZE);
1432 IWL_INFO(trans, "NVM Version %08X\n", le32_to_cpu(dword_buff[2]));
1433 IWL_INFO(trans, "NVM Manufacturing date %08X\n",
1434 le32_to_cpu(dword_buff[3]));
1435
1436 /* nvm file validation, dword_buff[2] holds the file version */
1437 if (trans->trans_cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1438 CSR_HW_REV_STEP(trans->hw_rev) == SILICON_C_STEP &&
1439 le32_to_cpu(dword_buff[2]) < 0xE4A) {
1440 ret = -EFAULT;
1441 goto out;
1442 }
1443 } else {
1444 file_sec = (void *)fw_entry->data;
1445 }
1446
1447 while (true) {
1448 if (file_sec->data > eof) {
1449 IWL_ERR(trans,
1450 "ERROR - NVM file too short for section header\n");
1451 ret = -EINVAL;
1452 break;
1453 }
1454
1455 /* check for EOF marker */
1456 if (!file_sec->word1 && !file_sec->word2) {
1457 ret = 0;
1458 break;
1459 }
1460
1461 if (trans->cfg->nvm_type != IWL_NVM_EXT) {
1462 section_size =
1463 2 * NVM_WORD1_LEN(le16_to_cpu(file_sec->word1));
1464 section_id = NVM_WORD2_ID(le16_to_cpu(file_sec->word2));
1465 } else {
1466 section_size = 2 * EXT_NVM_WORD2_LEN(
1467 le16_to_cpu(file_sec->word2));
1468 section_id = EXT_NVM_WORD1_ID(
1469 le16_to_cpu(file_sec->word1));
1470 }
1471
1472 if (section_size > max_section_size) {
1473 IWL_ERR(trans, "ERROR - section too large (%d)\n",
1474 section_size);
1475 ret = -EINVAL;
1476 break;
1477 }
1478
1479 if (!section_size) {
1480 IWL_ERR(trans, "ERROR - section empty\n");
1481 ret = -EINVAL;
1482 break;
1483 }
1484
1485 if (file_sec->data + section_size > eof) {
1486 IWL_ERR(trans,
1487 "ERROR - NVM file too short for section (%d bytes)\n",
1488 section_size);
1489 ret = -EINVAL;
1490 break;
1491 }
1492
1493 if (WARN(section_id >= NVM_MAX_NUM_SECTIONS,
1494 "Invalid NVM section ID %d\n", section_id)) {
1495 ret = -EINVAL;
1496 break;
1497 }
1498
1499 temp = kmemdup(file_sec->data, section_size, GFP_KERNEL);
1500 if (!temp) {
1501 ret = -ENOMEM;
1502 break;
1503 }
1504
1505 iwl_nvm_fixups(trans->hw_id, section_id, temp, section_size);
1506
1507 kfree(nvm_sections[section_id].data);
1508 nvm_sections[section_id].data = temp;
1509 nvm_sections[section_id].length = section_size;
1510
1511 /* advance to the next section */
1512 file_sec = (void *)(file_sec->data + section_size);
1513 }
1514 out:
1515 release_firmware(fw_entry);
1516 return ret;
1517 }
1518 IWL_EXPORT_SYMBOL(iwl_read_external_nvm);
1519
iwl_get_nvm(struct iwl_trans * trans,const struct iwl_fw * fw)1520 struct iwl_nvm_data *iwl_get_nvm(struct iwl_trans *trans,
1521 const struct iwl_fw *fw)
1522 {
1523 struct iwl_nvm_get_info cmd = {};
1524 struct iwl_nvm_data *nvm;
1525 struct iwl_host_cmd hcmd = {
1526 .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL,
1527 .data = { &cmd, },
1528 .len = { sizeof(cmd) },
1529 .id = WIDE_ID(REGULATORY_AND_NVM_GROUP, NVM_GET_INFO)
1530 };
1531 int ret;
1532 bool empty_otp;
1533 u32 mac_flags;
1534 u32 sbands_flags = 0;
1535 /*
1536 * All the values in iwl_nvm_get_info_rsp v4 are the same as
1537 * in v3, except for the channel profile part of the
1538 * regulatory. So we can just access the new struct, with the
1539 * exception of the latter.
1540 */
1541 struct iwl_nvm_get_info_rsp *rsp;
1542 struct iwl_nvm_get_info_rsp_v3 *rsp_v3;
1543 bool v4 = fw_has_api(&fw->ucode_capa,
1544 IWL_UCODE_TLV_API_REGULATORY_NVM_INFO);
1545 size_t rsp_size = v4 ? sizeof(*rsp) : sizeof(*rsp_v3);
1546 void *channel_profile;
1547
1548 ret = iwl_trans_send_cmd(trans, &hcmd);
1549 if (ret)
1550 return ERR_PTR(ret);
1551
1552 if (WARN(iwl_rx_packet_payload_len(hcmd.resp_pkt) != rsp_size,
1553 "Invalid payload len in NVM response from FW %d",
1554 iwl_rx_packet_payload_len(hcmd.resp_pkt))) {
1555 ret = -EINVAL;
1556 goto out;
1557 }
1558
1559 rsp = (void *)hcmd.resp_pkt->data;
1560 empty_otp = !!(le32_to_cpu(rsp->general.flags) &
1561 NVM_GENERAL_FLAGS_EMPTY_OTP);
1562 if (empty_otp)
1563 IWL_INFO(trans, "OTP is empty\n");
1564
1565 nvm = kzalloc(struct_size(nvm, channels, IWL_NUM_CHANNELS), GFP_KERNEL);
1566 if (!nvm) {
1567 ret = -ENOMEM;
1568 goto out;
1569 }
1570
1571 iwl_set_hw_address_from_csr(trans, nvm);
1572 /* TODO: if platform NVM has MAC address - override it here */
1573
1574 if (!is_valid_ether_addr(nvm->hw_addr)) {
1575 IWL_ERR(trans, "no valid mac address was found\n");
1576 ret = -EINVAL;
1577 goto err_free;
1578 }
1579
1580 IWL_INFO(trans, "base HW address: %pM\n", nvm->hw_addr);
1581
1582 /* Initialize general data */
1583 nvm->nvm_version = le16_to_cpu(rsp->general.nvm_version);
1584 nvm->n_hw_addrs = rsp->general.n_hw_addrs;
1585 if (nvm->n_hw_addrs == 0)
1586 IWL_WARN(trans,
1587 "Firmware declares no reserved mac addresses. OTP is empty: %d\n",
1588 empty_otp);
1589
1590 /* Initialize MAC sku data */
1591 mac_flags = le32_to_cpu(rsp->mac_sku.mac_sku_flags);
1592 nvm->sku_cap_11ac_enable =
1593 !!(mac_flags & NVM_MAC_SKU_FLAGS_802_11AC_ENABLED);
1594 nvm->sku_cap_11n_enable =
1595 !!(mac_flags & NVM_MAC_SKU_FLAGS_802_11N_ENABLED);
1596 nvm->sku_cap_11ax_enable =
1597 !!(mac_flags & NVM_MAC_SKU_FLAGS_802_11AX_ENABLED);
1598 nvm->sku_cap_band_24ghz_enable =
1599 !!(mac_flags & NVM_MAC_SKU_FLAGS_BAND_2_4_ENABLED);
1600 nvm->sku_cap_band_52ghz_enable =
1601 !!(mac_flags & NVM_MAC_SKU_FLAGS_BAND_5_2_ENABLED);
1602 nvm->sku_cap_mimo_disabled =
1603 !!(mac_flags & NVM_MAC_SKU_FLAGS_MIMO_DISABLED);
1604
1605 /* Initialize PHY sku data */
1606 nvm->valid_tx_ant = (u8)le32_to_cpu(rsp->phy_sku.tx_chains);
1607 nvm->valid_rx_ant = (u8)le32_to_cpu(rsp->phy_sku.rx_chains);
1608
1609 if (le32_to_cpu(rsp->regulatory.lar_enabled) &&
1610 fw_has_capa(&fw->ucode_capa,
1611 IWL_UCODE_TLV_CAPA_LAR_SUPPORT)) {
1612 nvm->lar_enabled = true;
1613 sbands_flags |= IWL_NVM_SBANDS_FLAGS_LAR;
1614 }
1615
1616 rsp_v3 = (void *)rsp;
1617 channel_profile = v4 ? (void *)rsp->regulatory.channel_profile :
1618 (void *)rsp_v3->regulatory.channel_profile;
1619
1620 iwl_init_sbands(trans, nvm,
1621 channel_profile,
1622 nvm->valid_tx_ant & fw->valid_tx_ant,
1623 nvm->valid_rx_ant & fw->valid_rx_ant,
1624 sbands_flags, v4);
1625
1626 iwl_free_resp(&hcmd);
1627 return nvm;
1628
1629 err_free:
1630 kfree(nvm);
1631 out:
1632 iwl_free_resp(&hcmd);
1633 return ERR_PTR(ret);
1634 }
1635 IWL_EXPORT_SYMBOL(iwl_get_nvm);
1636