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iwlwifi: change the Intel Wireless email address
[deliverable/linux.git] / drivers / net / wireless / intel / iwlwifi / iwl-nvm-parse.c
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 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
23 * USA
24 *
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
27 *
28 * Contact Information:
29 * Intel Linux Wireless <linuxwifi@intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *
32 * BSD LICENSE
33 *
34 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 *
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
47 * distribution.
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *****************************************************************************/
64 #include <linux/types.h>
65 #include <linux/slab.h>
66 #include <linux/export.h>
67 #include <linux/etherdevice.h>
68 #include <linux/pci.h>
69 #include "iwl-drv.h"
70 #include "iwl-modparams.h"
71 #include "iwl-nvm-parse.h"
72
73 /* NVM offsets (in words) definitions */
74 enum wkp_nvm_offsets {
75 /* NVM HW-Section offset (in words) definitions */
76 HW_ADDR = 0x15,
77
78 /* NVM SW-Section offset (in words) definitions */
79 NVM_SW_SECTION = 0x1C0,
80 NVM_VERSION = 0,
81 RADIO_CFG = 1,
82 SKU = 2,
83 N_HW_ADDRS = 3,
84 NVM_CHANNELS = 0x1E0 - NVM_SW_SECTION,
85
86 /* NVM calibration section offset (in words) definitions */
87 NVM_CALIB_SECTION = 0x2B8,
88 XTAL_CALIB = 0x316 - NVM_CALIB_SECTION
89 };
90
91 enum family_8000_nvm_offsets {
92 /* NVM HW-Section offset (in words) definitions */
93 HW_ADDR0_WFPM_FAMILY_8000 = 0x12,
94 HW_ADDR1_WFPM_FAMILY_8000 = 0x16,
95 HW_ADDR0_PCIE_FAMILY_8000 = 0x8A,
96 HW_ADDR1_PCIE_FAMILY_8000 = 0x8E,
97 MAC_ADDRESS_OVERRIDE_FAMILY_8000 = 1,
98
99 /* NVM SW-Section offset (in words) definitions */
100 NVM_SW_SECTION_FAMILY_8000 = 0x1C0,
101 NVM_VERSION_FAMILY_8000 = 0,
102 RADIO_CFG_FAMILY_8000 = 0,
103 SKU_FAMILY_8000 = 2,
104 N_HW_ADDRS_FAMILY_8000 = 3,
105
106 /* NVM REGULATORY -Section offset (in words) definitions */
107 NVM_CHANNELS_FAMILY_8000 = 0,
108 NVM_LAR_OFFSET_FAMILY_8000_OLD = 0x4C7,
109 NVM_LAR_OFFSET_FAMILY_8000 = 0x507,
110 NVM_LAR_ENABLED_FAMILY_8000 = 0x7,
111
112 /* NVM calibration section offset (in words) definitions */
113 NVM_CALIB_SECTION_FAMILY_8000 = 0x2B8,
114 XTAL_CALIB_FAMILY_8000 = 0x316 - NVM_CALIB_SECTION_FAMILY_8000
115 };
116
117 /* SKU Capabilities (actual values from NVM definition) */
118 enum nvm_sku_bits {
119 NVM_SKU_CAP_BAND_24GHZ = BIT(0),
120 NVM_SKU_CAP_BAND_52GHZ = BIT(1),
121 NVM_SKU_CAP_11N_ENABLE = BIT(2),
122 NVM_SKU_CAP_11AC_ENABLE = BIT(3),
123 NVM_SKU_CAP_MIMO_DISABLE = BIT(5),
124 };
125
126 /*
127 * These are the channel numbers in the order that they are stored in the NVM
128 */
129 static const u8 iwl_nvm_channels[] = {
130 /* 2.4 GHz */
131 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
132 /* 5 GHz */
133 36, 40, 44 , 48, 52, 56, 60, 64,
134 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144,
135 149, 153, 157, 161, 165
136 };
137
138 static const u8 iwl_nvm_channels_family_8000[] = {
139 /* 2.4 GHz */
140 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
141 /* 5 GHz */
142 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92,
143 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144,
144 149, 153, 157, 161, 165, 169, 173, 177, 181
145 };
146
147 #define IWL_NUM_CHANNELS ARRAY_SIZE(iwl_nvm_channels)
148 #define IWL_NUM_CHANNELS_FAMILY_8000 ARRAY_SIZE(iwl_nvm_channels_family_8000)
149 #define NUM_2GHZ_CHANNELS 14
150 #define NUM_2GHZ_CHANNELS_FAMILY_8000 14
151 #define FIRST_2GHZ_HT_MINUS 5
152 #define LAST_2GHZ_HT_PLUS 9
153 #define LAST_5GHZ_HT 165
154 #define LAST_5GHZ_HT_FAMILY_8000 181
155 #define N_HW_ADDR_MASK 0xF
156
157 /* rate data (static) */
158 static struct ieee80211_rate iwl_cfg80211_rates[] = {
159 { .bitrate = 1 * 10, .hw_value = 0, .hw_value_short = 0, },
160 { .bitrate = 2 * 10, .hw_value = 1, .hw_value_short = 1,
161 .flags = IEEE80211_RATE_SHORT_PREAMBLE, },
162 { .bitrate = 5.5 * 10, .hw_value = 2, .hw_value_short = 2,
163 .flags = IEEE80211_RATE_SHORT_PREAMBLE, },
164 { .bitrate = 11 * 10, .hw_value = 3, .hw_value_short = 3,
165 .flags = IEEE80211_RATE_SHORT_PREAMBLE, },
166 { .bitrate = 6 * 10, .hw_value = 4, .hw_value_short = 4, },
167 { .bitrate = 9 * 10, .hw_value = 5, .hw_value_short = 5, },
168 { .bitrate = 12 * 10, .hw_value = 6, .hw_value_short = 6, },
169 { .bitrate = 18 * 10, .hw_value = 7, .hw_value_short = 7, },
170 { .bitrate = 24 * 10, .hw_value = 8, .hw_value_short = 8, },
171 { .bitrate = 36 * 10, .hw_value = 9, .hw_value_short = 9, },
172 { .bitrate = 48 * 10, .hw_value = 10, .hw_value_short = 10, },
173 { .bitrate = 54 * 10, .hw_value = 11, .hw_value_short = 11, },
174 };
175 #define RATES_24_OFFS 0
176 #define N_RATES_24 ARRAY_SIZE(iwl_cfg80211_rates)
177 #define RATES_52_OFFS 4
178 #define N_RATES_52 (N_RATES_24 - RATES_52_OFFS)
179
180 /**
181 * enum iwl_nvm_channel_flags - channel flags in NVM
182 * @NVM_CHANNEL_VALID: channel is usable for this SKU/geo
183 * @NVM_CHANNEL_IBSS: usable as an IBSS channel
184 * @NVM_CHANNEL_ACTIVE: active scanning allowed
185 * @NVM_CHANNEL_RADAR: radar detection required
186 * @NVM_CHANNEL_INDOOR_ONLY: only indoor use is allowed
187 * @NVM_CHANNEL_GO_CONCURRENT: GO operation is allowed when connected to BSS
188 * on same channel on 2.4 or same UNII band on 5.2
189 * @NVM_CHANNEL_WIDE: 20 MHz channel okay (?)
190 * @NVM_CHANNEL_40MHZ: 40 MHz channel okay (?)
191 * @NVM_CHANNEL_80MHZ: 80 MHz channel okay (?)
192 * @NVM_CHANNEL_160MHZ: 160 MHz channel okay (?)
193 */
194 enum iwl_nvm_channel_flags {
195 NVM_CHANNEL_VALID = BIT(0),
196 NVM_CHANNEL_IBSS = BIT(1),
197 NVM_CHANNEL_ACTIVE = BIT(3),
198 NVM_CHANNEL_RADAR = BIT(4),
199 NVM_CHANNEL_INDOOR_ONLY = BIT(5),
200 NVM_CHANNEL_GO_CONCURRENT = BIT(6),
201 NVM_CHANNEL_WIDE = BIT(8),
202 NVM_CHANNEL_40MHZ = BIT(9),
203 NVM_CHANNEL_80MHZ = BIT(10),
204 NVM_CHANNEL_160MHZ = BIT(11),
205 };
206
207 #define CHECK_AND_PRINT_I(x) \
208 ((ch_flags & NVM_CHANNEL_##x) ? # x " " : "")
209
210 static u32 iwl_get_channel_flags(u8 ch_num, int ch_idx, bool is_5ghz,
211 u16 nvm_flags, const struct iwl_cfg *cfg)
212 {
213 u32 flags = IEEE80211_CHAN_NO_HT40;
214 u32 last_5ghz_ht = LAST_5GHZ_HT;
215
216 if (cfg->device_family == IWL_DEVICE_FAMILY_8000)
217 last_5ghz_ht = LAST_5GHZ_HT_FAMILY_8000;
218
219 if (!is_5ghz && (nvm_flags & NVM_CHANNEL_40MHZ)) {
220 if (ch_num <= LAST_2GHZ_HT_PLUS)
221 flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
222 if (ch_num >= FIRST_2GHZ_HT_MINUS)
223 flags &= ~IEEE80211_CHAN_NO_HT40MINUS;
224 } else if (ch_num <= last_5ghz_ht && (nvm_flags & NVM_CHANNEL_40MHZ)) {
225 if ((ch_idx - NUM_2GHZ_CHANNELS) % 2 == 0)
226 flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
227 else
228 flags &= ~IEEE80211_CHAN_NO_HT40MINUS;
229 }
230 if (!(nvm_flags & NVM_CHANNEL_80MHZ))
231 flags |= IEEE80211_CHAN_NO_80MHZ;
232 if (!(nvm_flags & NVM_CHANNEL_160MHZ))
233 flags |= IEEE80211_CHAN_NO_160MHZ;
234
235 if (!(nvm_flags & NVM_CHANNEL_IBSS))
236 flags |= IEEE80211_CHAN_NO_IR;
237
238 if (!(nvm_flags & NVM_CHANNEL_ACTIVE))
239 flags |= IEEE80211_CHAN_NO_IR;
240
241 if (nvm_flags & NVM_CHANNEL_RADAR)
242 flags |= IEEE80211_CHAN_RADAR;
243
244 if (nvm_flags & NVM_CHANNEL_INDOOR_ONLY)
245 flags |= IEEE80211_CHAN_INDOOR_ONLY;
246
247 /* Set the GO concurrent flag only in case that NO_IR is set.
248 * Otherwise it is meaningless
249 */
250 if ((nvm_flags & NVM_CHANNEL_GO_CONCURRENT) &&
251 (flags & IEEE80211_CHAN_NO_IR))
252 flags |= IEEE80211_CHAN_IR_CONCURRENT;
253
254 return flags;
255 }
256
257 static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
258 struct iwl_nvm_data *data,
259 const __le16 * const nvm_ch_flags,
260 bool lar_supported)
261 {
262 int ch_idx;
263 int n_channels = 0;
264 struct ieee80211_channel *channel;
265 u16 ch_flags;
266 bool is_5ghz;
267 int num_of_ch, num_2ghz_channels;
268 const u8 *nvm_chan;
269
270 if (cfg->device_family != IWL_DEVICE_FAMILY_8000) {
271 num_of_ch = IWL_NUM_CHANNELS;
272 nvm_chan = &iwl_nvm_channels[0];
273 num_2ghz_channels = NUM_2GHZ_CHANNELS;
274 } else {
275 num_of_ch = IWL_NUM_CHANNELS_FAMILY_8000;
276 nvm_chan = &iwl_nvm_channels_family_8000[0];
277 num_2ghz_channels = NUM_2GHZ_CHANNELS_FAMILY_8000;
278 }
279
280 for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) {
281 ch_flags = __le16_to_cpup(nvm_ch_flags + ch_idx);
282
283 if (ch_idx >= num_2ghz_channels &&
284 !data->sku_cap_band_52GHz_enable)
285 continue;
286
287 if (!lar_supported && !(ch_flags & NVM_CHANNEL_VALID)) {
288 /*
289 * Channels might become valid later if lar is
290 * supported, hence we still want to add them to
291 * the list of supported channels to cfg80211.
292 */
293 IWL_DEBUG_EEPROM(dev,
294 "Ch. %d Flags %x [%sGHz] - No traffic\n",
295 nvm_chan[ch_idx],
296 ch_flags,
297 (ch_idx >= num_2ghz_channels) ?
298 "5.2" : "2.4");
299 continue;
300 }
301
302 channel = &data->channels[n_channels];
303 n_channels++;
304
305 channel->hw_value = nvm_chan[ch_idx];
306 channel->band = (ch_idx < num_2ghz_channels) ?
307 IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
308 channel->center_freq =
309 ieee80211_channel_to_frequency(
310 channel->hw_value, channel->band);
311
312 /* Initialize regulatory-based run-time data */
313
314 /*
315 * Default value - highest tx power value. max_power
316 * is not used in mvm, and is used for backwards compatibility
317 */
318 channel->max_power = IWL_DEFAULT_MAX_TX_POWER;
319 is_5ghz = channel->band == IEEE80211_BAND_5GHZ;
320
321 /* don't put limitations in case we're using LAR */
322 if (!lar_supported)
323 channel->flags = iwl_get_channel_flags(nvm_chan[ch_idx],
324 ch_idx, is_5ghz,
325 ch_flags, cfg);
326 else
327 channel->flags = 0;
328
329 IWL_DEBUG_EEPROM(dev,
330 "Ch. %d [%sGHz] %s%s%s%s%s%s%s(0x%02x %ddBm): Ad-Hoc %ssupported\n",
331 channel->hw_value,
332 is_5ghz ? "5.2" : "2.4",
333 CHECK_AND_PRINT_I(VALID),
334 CHECK_AND_PRINT_I(IBSS),
335 CHECK_AND_PRINT_I(ACTIVE),
336 CHECK_AND_PRINT_I(RADAR),
337 CHECK_AND_PRINT_I(WIDE),
338 CHECK_AND_PRINT_I(INDOOR_ONLY),
339 CHECK_AND_PRINT_I(GO_CONCURRENT),
340 ch_flags,
341 channel->max_power,
342 ((ch_flags & NVM_CHANNEL_IBSS) &&
343 !(ch_flags & NVM_CHANNEL_RADAR))
344 ? "" : "not ");
345 }
346
347 return n_channels;
348 }
349
350 static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg,
351 struct iwl_nvm_data *data,
352 struct ieee80211_sta_vht_cap *vht_cap,
353 u8 tx_chains, u8 rx_chains)
354 {
355 int num_rx_ants = num_of_ant(rx_chains);
356 int num_tx_ants = num_of_ant(tx_chains);
357 unsigned int max_ampdu_exponent = (cfg->max_vht_ampdu_exponent ?:
358 IEEE80211_VHT_MAX_AMPDU_1024K);
359
360 vht_cap->vht_supported = true;
361
362 vht_cap->cap = IEEE80211_VHT_CAP_SHORT_GI_80 |
363 IEEE80211_VHT_CAP_RXSTBC_1 |
364 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
365 3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT |
366 max_ampdu_exponent <<
367 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
368
369 if (cfg->ht_params->ldpc)
370 vht_cap->cap |= IEEE80211_VHT_CAP_RXLDPC;
371
372 if (data->sku_cap_mimo_disabled) {
373 num_rx_ants = 1;
374 num_tx_ants = 1;
375 }
376
377 if (num_tx_ants > 1)
378 vht_cap->cap |= IEEE80211_VHT_CAP_TXSTBC;
379 else
380 vht_cap->cap |= IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN;
381
382 switch (iwlwifi_mod_params.amsdu_size) {
383 case IWL_AMSDU_4K:
384 vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895;
385 break;
386 case IWL_AMSDU_8K:
387 vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991;
388 break;
389 case IWL_AMSDU_12K:
390 vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454;
391 break;
392 default:
393 break;
394 }
395
396 vht_cap->vht_mcs.rx_mcs_map =
397 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
398 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
399 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
400 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
401 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
402 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
403 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
404 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14);
405
406 if (num_rx_ants == 1 || cfg->rx_with_siso_diversity) {
407 vht_cap->cap |= IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN;
408 /* this works because NOT_SUPPORTED == 3 */
409 vht_cap->vht_mcs.rx_mcs_map |=
410 cpu_to_le16(IEEE80211_VHT_MCS_NOT_SUPPORTED << 2);
411 }
412
413 vht_cap->vht_mcs.tx_mcs_map = vht_cap->vht_mcs.rx_mcs_map;
414 }
415
416 static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg,
417 struct iwl_nvm_data *data,
418 const __le16 *ch_section,
419 u8 tx_chains, u8 rx_chains, bool lar_supported)
420 {
421 int n_channels;
422 int n_used = 0;
423 struct ieee80211_supported_band *sband;
424
425 if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
426 n_channels = iwl_init_channel_map(
427 dev, cfg, data,
428 &ch_section[NVM_CHANNELS], lar_supported);
429 else
430 n_channels = iwl_init_channel_map(
431 dev, cfg, data,
432 &ch_section[NVM_CHANNELS_FAMILY_8000],
433 lar_supported);
434
435 sband = &data->bands[IEEE80211_BAND_2GHZ];
436 sband->band = IEEE80211_BAND_2GHZ;
437 sband->bitrates = &iwl_cfg80211_rates[RATES_24_OFFS];
438 sband->n_bitrates = N_RATES_24;
439 n_used += iwl_init_sband_channels(data, sband, n_channels,
440 IEEE80211_BAND_2GHZ);
441 iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_2GHZ,
442 tx_chains, rx_chains);
443
444 sband = &data->bands[IEEE80211_BAND_5GHZ];
445 sband->band = IEEE80211_BAND_5GHZ;
446 sband->bitrates = &iwl_cfg80211_rates[RATES_52_OFFS];
447 sband->n_bitrates = N_RATES_52;
448 n_used += iwl_init_sband_channels(data, sband, n_channels,
449 IEEE80211_BAND_5GHZ);
450 iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_5GHZ,
451 tx_chains, rx_chains);
452 if (data->sku_cap_11ac_enable)
453 iwl_init_vht_hw_capab(cfg, data, &sband->vht_cap,
454 tx_chains, rx_chains);
455
456 if (n_channels != n_used)
457 IWL_ERR_DEV(dev, "NVM: used only %d of %d channels\n",
458 n_used, n_channels);
459 }
460
461 static int iwl_get_sku(const struct iwl_cfg *cfg, const __le16 *nvm_sw,
462 const __le16 *phy_sku)
463 {
464 if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
465 return le16_to_cpup(nvm_sw + SKU);
466
467 return le32_to_cpup((__le32 *)(phy_sku + SKU_FAMILY_8000));
468 }
469
470 static int iwl_get_nvm_version(const struct iwl_cfg *cfg, const __le16 *nvm_sw)
471 {
472 if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
473 return le16_to_cpup(nvm_sw + NVM_VERSION);
474 else
475 return le32_to_cpup((__le32 *)(nvm_sw +
476 NVM_VERSION_FAMILY_8000));
477 }
478
479 static int iwl_get_radio_cfg(const struct iwl_cfg *cfg, const __le16 *nvm_sw,
480 const __le16 *phy_sku)
481 {
482 if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
483 return le16_to_cpup(nvm_sw + RADIO_CFG);
484
485 return le32_to_cpup((__le32 *)(phy_sku + RADIO_CFG_FAMILY_8000));
486
487 }
488
489 static int iwl_get_n_hw_addrs(const struct iwl_cfg *cfg, const __le16 *nvm_sw)
490 {
491 int n_hw_addr;
492
493 if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
494 return le16_to_cpup(nvm_sw + N_HW_ADDRS);
495
496 n_hw_addr = le32_to_cpup((__le32 *)(nvm_sw + N_HW_ADDRS_FAMILY_8000));
497
498 return n_hw_addr & N_HW_ADDR_MASK;
499 }
500
501 static void iwl_set_radio_cfg(const struct iwl_cfg *cfg,
502 struct iwl_nvm_data *data,
503 u32 radio_cfg)
504 {
505 if (cfg->device_family != IWL_DEVICE_FAMILY_8000) {
506 data->radio_cfg_type = NVM_RF_CFG_TYPE_MSK(radio_cfg);
507 data->radio_cfg_step = NVM_RF_CFG_STEP_MSK(radio_cfg);
508 data->radio_cfg_dash = NVM_RF_CFG_DASH_MSK(radio_cfg);
509 data->radio_cfg_pnum = NVM_RF_CFG_PNUM_MSK(radio_cfg);
510 return;
511 }
512
513 /* set the radio configuration for family 8000 */
514 data->radio_cfg_type = NVM_RF_CFG_TYPE_MSK_FAMILY_8000(radio_cfg);
515 data->radio_cfg_step = NVM_RF_CFG_STEP_MSK_FAMILY_8000(radio_cfg);
516 data->radio_cfg_dash = NVM_RF_CFG_DASH_MSK_FAMILY_8000(radio_cfg);
517 data->radio_cfg_pnum = NVM_RF_CFG_FLAVOR_MSK_FAMILY_8000(radio_cfg);
518 data->valid_tx_ant = NVM_RF_CFG_TX_ANT_MSK_FAMILY_8000(radio_cfg);
519 data->valid_rx_ant = NVM_RF_CFG_RX_ANT_MSK_FAMILY_8000(radio_cfg);
520 }
521
522 static void iwl_set_hw_address(const struct iwl_cfg *cfg,
523 struct iwl_nvm_data *data,
524 const __le16 *nvm_sec)
525 {
526 const u8 *hw_addr = (const u8 *)(nvm_sec + HW_ADDR);
527
528 /* The byte order is little endian 16 bit, meaning 214365 */
529 data->hw_addr[0] = hw_addr[1];
530 data->hw_addr[1] = hw_addr[0];
531 data->hw_addr[2] = hw_addr[3];
532 data->hw_addr[3] = hw_addr[2];
533 data->hw_addr[4] = hw_addr[5];
534 data->hw_addr[5] = hw_addr[4];
535 }
536
537 static void iwl_set_hw_address_family_8000(struct device *dev,
538 const struct iwl_cfg *cfg,
539 struct iwl_nvm_data *data,
540 const __le16 *mac_override,
541 const __le16 *nvm_hw,
542 u32 mac_addr0, u32 mac_addr1)
543 {
544 const u8 *hw_addr;
545
546 if (mac_override) {
547 static const u8 reserved_mac[] = {
548 0x02, 0xcc, 0xaa, 0xff, 0xee, 0x00
549 };
550
551 hw_addr = (const u8 *)(mac_override +
552 MAC_ADDRESS_OVERRIDE_FAMILY_8000);
553
554 /*
555 * Store the MAC address from MAO section.
556 * No byte swapping is required in MAO section
557 */
558 memcpy(data->hw_addr, hw_addr, ETH_ALEN);
559
560 /*
561 * Force the use of the OTP MAC address in case of reserved MAC
562 * address in the NVM, or if address is given but invalid.
563 */
564 if (is_valid_ether_addr(data->hw_addr) &&
565 memcmp(reserved_mac, hw_addr, ETH_ALEN) != 0)
566 return;
567
568 IWL_ERR_DEV(dev,
569 "mac address from nvm override section is not valid\n");
570 }
571
572 if (nvm_hw) {
573 /* read the MAC address from HW resisters */
574 hw_addr = (const u8 *)&mac_addr0;
575 data->hw_addr[0] = hw_addr[3];
576 data->hw_addr[1] = hw_addr[2];
577 data->hw_addr[2] = hw_addr[1];
578 data->hw_addr[3] = hw_addr[0];
579
580 hw_addr = (const u8 *)&mac_addr1;
581 data->hw_addr[4] = hw_addr[1];
582 data->hw_addr[5] = hw_addr[0];
583
584 if (!is_valid_ether_addr(data->hw_addr))
585 IWL_ERR_DEV(dev,
586 "mac address from hw section is not valid\n");
587
588 return;
589 }
590
591 IWL_ERR_DEV(dev, "mac address is not found\n");
592 }
593
594 struct iwl_nvm_data *
595 iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg,
596 const __le16 *nvm_hw, const __le16 *nvm_sw,
597 const __le16 *nvm_calib, const __le16 *regulatory,
598 const __le16 *mac_override, const __le16 *phy_sku,
599 u8 tx_chains, u8 rx_chains, bool lar_fw_supported,
600 u32 mac_addr0, u32 mac_addr1)
601 {
602 struct iwl_nvm_data *data;
603 u32 sku;
604 u32 radio_cfg;
605 u16 lar_config;
606
607 if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
608 data = kzalloc(sizeof(*data) +
609 sizeof(struct ieee80211_channel) *
610 IWL_NUM_CHANNELS,
611 GFP_KERNEL);
612 else
613 data = kzalloc(sizeof(*data) +
614 sizeof(struct ieee80211_channel) *
615 IWL_NUM_CHANNELS_FAMILY_8000,
616 GFP_KERNEL);
617 if (!data)
618 return NULL;
619
620 data->nvm_version = iwl_get_nvm_version(cfg, nvm_sw);
621
622 radio_cfg = iwl_get_radio_cfg(cfg, nvm_sw, phy_sku);
623 iwl_set_radio_cfg(cfg, data, radio_cfg);
624 if (data->valid_tx_ant)
625 tx_chains &= data->valid_tx_ant;
626 if (data->valid_rx_ant)
627 rx_chains &= data->valid_rx_ant;
628
629 sku = iwl_get_sku(cfg, nvm_sw, phy_sku);
630 data->sku_cap_band_24GHz_enable = sku & NVM_SKU_CAP_BAND_24GHZ;
631 data->sku_cap_band_52GHz_enable = sku & NVM_SKU_CAP_BAND_52GHZ;
632 data->sku_cap_11n_enable = sku & NVM_SKU_CAP_11N_ENABLE;
633 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_ALL)
634 data->sku_cap_11n_enable = false;
635 data->sku_cap_11ac_enable = data->sku_cap_11n_enable &&
636 (sku & NVM_SKU_CAP_11AC_ENABLE);
637 data->sku_cap_mimo_disabled = sku & NVM_SKU_CAP_MIMO_DISABLE;
638
639 data->n_hw_addrs = iwl_get_n_hw_addrs(cfg, nvm_sw);
640
641 if (cfg->device_family != IWL_DEVICE_FAMILY_8000) {
642 /* Checking for required sections */
643 if (!nvm_calib) {
644 IWL_ERR_DEV(dev,
645 "Can't parse empty Calib NVM sections\n");
646 kfree(data);
647 return NULL;
648 }
649 /* in family 8000 Xtal calibration values moved to OTP */
650 data->xtal_calib[0] = *(nvm_calib + XTAL_CALIB);
651 data->xtal_calib[1] = *(nvm_calib + XTAL_CALIB + 1);
652 }
653
654 if (cfg->device_family != IWL_DEVICE_FAMILY_8000) {
655 iwl_set_hw_address(cfg, data, nvm_hw);
656
657 iwl_init_sbands(dev, cfg, data, nvm_sw,
658 tx_chains, rx_chains, lar_fw_supported);
659 } else {
660 u16 lar_offset = data->nvm_version < 0xE39 ?
661 NVM_LAR_OFFSET_FAMILY_8000_OLD :
662 NVM_LAR_OFFSET_FAMILY_8000;
663
664 lar_config = le16_to_cpup(regulatory + lar_offset);
665 data->lar_enabled = !!(lar_config &
666 NVM_LAR_ENABLED_FAMILY_8000);
667
668 /* MAC address in family 8000 */
669 iwl_set_hw_address_family_8000(dev, cfg, data, mac_override,
670 nvm_hw, mac_addr0, mac_addr1);
671
672 iwl_init_sbands(dev, cfg, data, regulatory,
673 tx_chains, rx_chains,
674 lar_fw_supported && data->lar_enabled);
675 }
676
677 data->calib_version = 255;
678
679 return data;
680 }
681 IWL_EXPORT_SYMBOL(iwl_parse_nvm_data);
682
683 static u32 iwl_nvm_get_regdom_bw_flags(const u8 *nvm_chan,
684 int ch_idx, u16 nvm_flags,
685 const struct iwl_cfg *cfg)
686 {
687 u32 flags = NL80211_RRF_NO_HT40;
688 u32 last_5ghz_ht = LAST_5GHZ_HT;
689
690 if (cfg->device_family == IWL_DEVICE_FAMILY_8000)
691 last_5ghz_ht = LAST_5GHZ_HT_FAMILY_8000;
692
693 if (ch_idx < NUM_2GHZ_CHANNELS &&
694 (nvm_flags & NVM_CHANNEL_40MHZ)) {
695 if (nvm_chan[ch_idx] <= LAST_2GHZ_HT_PLUS)
696 flags &= ~NL80211_RRF_NO_HT40PLUS;
697 if (nvm_chan[ch_idx] >= FIRST_2GHZ_HT_MINUS)
698 flags &= ~NL80211_RRF_NO_HT40MINUS;
699 } else if (nvm_chan[ch_idx] <= last_5ghz_ht &&
700 (nvm_flags & NVM_CHANNEL_40MHZ)) {
701 if ((ch_idx - NUM_2GHZ_CHANNELS) % 2 == 0)
702 flags &= ~NL80211_RRF_NO_HT40PLUS;
703 else
704 flags &= ~NL80211_RRF_NO_HT40MINUS;
705 }
706
707 if (!(nvm_flags & NVM_CHANNEL_80MHZ))
708 flags |= NL80211_RRF_NO_80MHZ;
709 if (!(nvm_flags & NVM_CHANNEL_160MHZ))
710 flags |= NL80211_RRF_NO_160MHZ;
711
712 if (!(nvm_flags & NVM_CHANNEL_ACTIVE))
713 flags |= NL80211_RRF_NO_IR;
714
715 if (nvm_flags & NVM_CHANNEL_RADAR)
716 flags |= NL80211_RRF_DFS;
717
718 if (nvm_flags & NVM_CHANNEL_INDOOR_ONLY)
719 flags |= NL80211_RRF_NO_OUTDOOR;
720
721 /* Set the GO concurrent flag only in case that NO_IR is set.
722 * Otherwise it is meaningless
723 */
724 if ((nvm_flags & NVM_CHANNEL_GO_CONCURRENT) &&
725 (flags & NL80211_RRF_NO_IR))
726 flags |= NL80211_RRF_GO_CONCURRENT;
727
728 return flags;
729 }
730
731 struct ieee80211_regdomain *
732 iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
733 int num_of_ch, __le32 *channels, u16 fw_mcc)
734 {
735 int ch_idx;
736 u16 ch_flags, prev_ch_flags = 0;
737 const u8 *nvm_chan = cfg->device_family == IWL_DEVICE_FAMILY_8000 ?
738 iwl_nvm_channels_family_8000 : iwl_nvm_channels;
739 struct ieee80211_regdomain *regd;
740 int size_of_regd;
741 struct ieee80211_reg_rule *rule;
742 enum ieee80211_band band;
743 int center_freq, prev_center_freq = 0;
744 int valid_rules = 0;
745 bool new_rule;
746 int max_num_ch = cfg->device_family == IWL_DEVICE_FAMILY_8000 ?
747 IWL_NUM_CHANNELS_FAMILY_8000 : IWL_NUM_CHANNELS;
748
749 if (WARN_ON_ONCE(num_of_ch > NL80211_MAX_SUPP_REG_RULES))
750 return ERR_PTR(-EINVAL);
751
752 if (WARN_ON(num_of_ch > max_num_ch))
753 num_of_ch = max_num_ch;
754
755 IWL_DEBUG_DEV(dev, IWL_DL_LAR, "building regdom for %d channels\n",
756 num_of_ch);
757
758 /* build a regdomain rule for every valid channel */
759 size_of_regd =
760 sizeof(struct ieee80211_regdomain) +
761 num_of_ch * sizeof(struct ieee80211_reg_rule);
762
763 regd = kzalloc(size_of_regd, GFP_KERNEL);
764 if (!regd)
765 return ERR_PTR(-ENOMEM);
766
767 for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) {
768 ch_flags = (u16)__le32_to_cpup(channels + ch_idx);
769 band = (ch_idx < NUM_2GHZ_CHANNELS) ?
770 IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
771 center_freq = ieee80211_channel_to_frequency(nvm_chan[ch_idx],
772 band);
773 new_rule = false;
774
775 if (!(ch_flags & NVM_CHANNEL_VALID)) {
776 IWL_DEBUG_DEV(dev, IWL_DL_LAR,
777 "Ch. %d Flags %x [%sGHz] - No traffic\n",
778 nvm_chan[ch_idx],
779 ch_flags,
780 (ch_idx >= NUM_2GHZ_CHANNELS) ?
781 "5.2" : "2.4");
782 continue;
783 }
784
785 /* we can't continue the same rule */
786 if (ch_idx == 0 || prev_ch_flags != ch_flags ||
787 center_freq - prev_center_freq > 20) {
788 valid_rules++;
789 new_rule = true;
790 }
791
792 rule = &regd->reg_rules[valid_rules - 1];
793
794 if (new_rule)
795 rule->freq_range.start_freq_khz =
796 MHZ_TO_KHZ(center_freq - 10);
797
798 rule->freq_range.end_freq_khz = MHZ_TO_KHZ(center_freq + 10);
799
800 /* this doesn't matter - not used by FW */
801 rule->power_rule.max_antenna_gain = DBI_TO_MBI(6);
802 rule->power_rule.max_eirp =
803 DBM_TO_MBM(IWL_DEFAULT_MAX_TX_POWER);
804
805 rule->flags = iwl_nvm_get_regdom_bw_flags(nvm_chan, ch_idx,
806 ch_flags, cfg);
807
808 /* rely on auto-calculation to merge BW of contiguous chans */
809 rule->flags |= NL80211_RRF_AUTO_BW;
810 rule->freq_range.max_bandwidth_khz = 0;
811
812 prev_ch_flags = ch_flags;
813 prev_center_freq = center_freq;
814
815 IWL_DEBUG_DEV(dev, IWL_DL_LAR,
816 "Ch. %d [%sGHz] %s%s%s%s%s%s%s%s%s(0x%02x): Ad-Hoc %ssupported\n",
817 center_freq,
818 band == IEEE80211_BAND_5GHZ ? "5.2" : "2.4",
819 CHECK_AND_PRINT_I(VALID),
820 CHECK_AND_PRINT_I(ACTIVE),
821 CHECK_AND_PRINT_I(RADAR),
822 CHECK_AND_PRINT_I(WIDE),
823 CHECK_AND_PRINT_I(40MHZ),
824 CHECK_AND_PRINT_I(80MHZ),
825 CHECK_AND_PRINT_I(160MHZ),
826 CHECK_AND_PRINT_I(INDOOR_ONLY),
827 CHECK_AND_PRINT_I(GO_CONCURRENT),
828 ch_flags,
829 ((ch_flags & NVM_CHANNEL_ACTIVE) &&
830 !(ch_flags & NVM_CHANNEL_RADAR))
831 ? "" : "not ");
832 }
833
834 regd->n_reg_rules = valid_rules;
835
836 /* set alpha2 from FW. */
837 regd->alpha2[0] = fw_mcc >> 8;
838 regd->alpha2[1] = fw_mcc & 0xff;
839
840 return regd;
841 }
842 IWL_EXPORT_SYMBOL(iwl_parse_nvm_mcc_info);
Linux kernel - Deliverables
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