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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 Intel Deutschland GmbH
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * USA
25 *
26 * The full GNU General Public License is included in this distribution
27 * in the file called COPYING.
28 *
29 * Contact Information:
30 * Intel Linux Wireless <linuxwifi@intel.com>
31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
32 *
33 * BSD LICENSE
34 *
35 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
36 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
37 * All rights reserved.
38 *
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
41 * are met:
42 *
43 * * Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * * Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in
47 * the documentation and/or other materials provided with the
48 * distribution.
49 * * Neither the name Intel Corporation nor the names of its
50 * contributors may be used to endorse or promote products derived
51 * from this software without specific prior written permission.
52 *
53 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
54 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
55 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
56 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
57 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
58 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
59 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
60 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
61 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
62 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
63 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *****************************************************************************/
65#include <linux/types.h>
66#include <linux/slab.h>
67#include <linux/export.h>
68#include <linux/etherdevice.h>
69#include <linux/pci.h>
70#include <linux/acpi.h>
71#include "iwl-drv.h"
72#include "iwl-modparams.h"
73#include "iwl-nvm-parse.h"
74#include "iwl-prph.h"
75#include "iwl-io.h"
76#include "iwl-csr.h"
77
78/* NVM offsets (in words) definitions */
79enum wkp_nvm_offsets {
80 /* NVM HW-Section offset (in words) definitions */
81 HW_ADDR = 0x15,
82
83 /* NVM SW-Section offset (in words) definitions */
84 NVM_SW_SECTION = 0x1C0,
85 NVM_VERSION = 0,
86 RADIO_CFG = 1,
87 SKU = 2,
88 N_HW_ADDRS = 3,
89 NVM_CHANNELS = 0x1E0 - NVM_SW_SECTION,
90
91 /* NVM calibration section offset (in words) definitions */
92 NVM_CALIB_SECTION = 0x2B8,
93 XTAL_CALIB = 0x316 - NVM_CALIB_SECTION
94};
95
96enum family_8000_nvm_offsets {
97 /* NVM HW-Section offset (in words) definitions */
98 HW_ADDR0_WFPM_FAMILY_8000 = 0x12,
99 HW_ADDR1_WFPM_FAMILY_8000 = 0x16,
100 HW_ADDR0_PCIE_FAMILY_8000 = 0x8A,
101 HW_ADDR1_PCIE_FAMILY_8000 = 0x8E,
102 MAC_ADDRESS_OVERRIDE_FAMILY_8000 = 1,
103
104 /* NVM SW-Section offset (in words) definitions */
105 NVM_SW_SECTION_FAMILY_8000 = 0x1C0,
106 NVM_VERSION_FAMILY_8000 = 0,
107 RADIO_CFG_FAMILY_8000 = 0,
108 SKU_FAMILY_8000 = 2,
109 N_HW_ADDRS_FAMILY_8000 = 3,
110
111 /* NVM REGULATORY -Section offset (in words) definitions */
112 NVM_CHANNELS_FAMILY_8000 = 0,
113 NVM_LAR_OFFSET_FAMILY_8000_OLD = 0x4C7,
114 NVM_LAR_OFFSET_FAMILY_8000 = 0x507,
115 NVM_LAR_ENABLED_FAMILY_8000 = 0x7,
116
117 /* NVM calibration section offset (in words) definitions */
118 NVM_CALIB_SECTION_FAMILY_8000 = 0x2B8,
119 XTAL_CALIB_FAMILY_8000 = 0x316 - NVM_CALIB_SECTION_FAMILY_8000
120};
121
122/* SKU Capabilities (actual values from NVM definition) */
123enum nvm_sku_bits {
124 NVM_SKU_CAP_BAND_24GHZ = BIT(0),
125 NVM_SKU_CAP_BAND_52GHZ = BIT(1),
126 NVM_SKU_CAP_11N_ENABLE = BIT(2),
127 NVM_SKU_CAP_11AC_ENABLE = BIT(3),
128 NVM_SKU_CAP_MIMO_DISABLE = BIT(5),
129};
130
131/*
132 * These are the channel numbers in the order that they are stored in the NVM
133 */
134static const u8 iwl_nvm_channels[] = {
135 /* 2.4 GHz */
136 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
137 /* 5 GHz */
138 36, 40, 44 , 48, 52, 56, 60, 64,
139 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144,
140 149, 153, 157, 161, 165
141};
142
143static const u8 iwl_nvm_channels_family_8000[] = {
144 /* 2.4 GHz */
145 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
146 /* 5 GHz */
147 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92,
148 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144,
149 149, 153, 157, 161, 165, 169, 173, 177, 181
150};
151
152#define IWL_NUM_CHANNELS ARRAY_SIZE(iwl_nvm_channels)
153#define IWL_NUM_CHANNELS_FAMILY_8000 ARRAY_SIZE(iwl_nvm_channels_family_8000)
154#define NUM_2GHZ_CHANNELS 14
155#define NUM_2GHZ_CHANNELS_FAMILY_8000 14
156#define FIRST_2GHZ_HT_MINUS 5
157#define LAST_2GHZ_HT_PLUS 9
158#define LAST_5GHZ_HT 165
159#define LAST_5GHZ_HT_FAMILY_8000 181
160#define N_HW_ADDR_MASK 0xF
161
162/* rate data (static) */
163static struct ieee80211_rate iwl_cfg80211_rates[] = {
164 { .bitrate = 1 * 10, .hw_value = 0, .hw_value_short = 0, },
165 { .bitrate = 2 * 10, .hw_value = 1, .hw_value_short = 1,
166 .flags = IEEE80211_RATE_SHORT_PREAMBLE, },
167 { .bitrate = 5.5 * 10, .hw_value = 2, .hw_value_short = 2,
168 .flags = IEEE80211_RATE_SHORT_PREAMBLE, },
169 { .bitrate = 11 * 10, .hw_value = 3, .hw_value_short = 3,
170 .flags = IEEE80211_RATE_SHORT_PREAMBLE, },
171 { .bitrate = 6 * 10, .hw_value = 4, .hw_value_short = 4, },
172 { .bitrate = 9 * 10, .hw_value = 5, .hw_value_short = 5, },
173 { .bitrate = 12 * 10, .hw_value = 6, .hw_value_short = 6, },
174 { .bitrate = 18 * 10, .hw_value = 7, .hw_value_short = 7, },
175 { .bitrate = 24 * 10, .hw_value = 8, .hw_value_short = 8, },
176 { .bitrate = 36 * 10, .hw_value = 9, .hw_value_short = 9, },
177 { .bitrate = 48 * 10, .hw_value = 10, .hw_value_short = 10, },
178 { .bitrate = 54 * 10, .hw_value = 11, .hw_value_short = 11, },
179};
180#define RATES_24_OFFS 0
181#define N_RATES_24 ARRAY_SIZE(iwl_cfg80211_rates)
182#define RATES_52_OFFS 4
183#define N_RATES_52 (N_RATES_24 - RATES_52_OFFS)
184
185/**
186 * enum iwl_nvm_channel_flags - channel flags in NVM
187 * @NVM_CHANNEL_VALID: channel is usable for this SKU/geo
188 * @NVM_CHANNEL_IBSS: usable as an IBSS channel
189 * @NVM_CHANNEL_ACTIVE: active scanning allowed
190 * @NVM_CHANNEL_RADAR: radar detection required
191 * @NVM_CHANNEL_INDOOR_ONLY: only indoor use is allowed
192 * @NVM_CHANNEL_GO_CONCURRENT: GO operation is allowed when connected to BSS
193 * on same channel on 2.4 or same UNII band on 5.2
194 * @NVM_CHANNEL_WIDE: 20 MHz channel okay (?)
195 * @NVM_CHANNEL_40MHZ: 40 MHz channel okay (?)
196 * @NVM_CHANNEL_80MHZ: 80 MHz channel okay (?)
197 * @NVM_CHANNEL_160MHZ: 160 MHz channel okay (?)
198 */
199enum iwl_nvm_channel_flags {
200 NVM_CHANNEL_VALID = BIT(0),
201 NVM_CHANNEL_IBSS = BIT(1),
202 NVM_CHANNEL_ACTIVE = BIT(3),
203 NVM_CHANNEL_RADAR = BIT(4),
204 NVM_CHANNEL_INDOOR_ONLY = BIT(5),
205 NVM_CHANNEL_GO_CONCURRENT = BIT(6),
206 NVM_CHANNEL_WIDE = BIT(8),
207 NVM_CHANNEL_40MHZ = BIT(9),
208 NVM_CHANNEL_80MHZ = BIT(10),
209 NVM_CHANNEL_160MHZ = BIT(11),
210};
211
212#define CHECK_AND_PRINT_I(x) \
213 ((ch_flags & NVM_CHANNEL_##x) ? # x " " : "")
214
215static u32 iwl_get_channel_flags(u8 ch_num, int ch_idx, bool is_5ghz,
216 u16 nvm_flags, const struct iwl_cfg *cfg)
217{
218 u32 flags = IEEE80211_CHAN_NO_HT40;
219 u32 last_5ghz_ht = LAST_5GHZ_HT;
220
221 if (cfg->device_family == IWL_DEVICE_FAMILY_8000)
222 last_5ghz_ht = LAST_5GHZ_HT_FAMILY_8000;
223
224 if (!is_5ghz && (nvm_flags & NVM_CHANNEL_40MHZ)) {
225 if (ch_num <= LAST_2GHZ_HT_PLUS)
226 flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
227 if (ch_num >= FIRST_2GHZ_HT_MINUS)
228 flags &= ~IEEE80211_CHAN_NO_HT40MINUS;
229 } else if (ch_num <= last_5ghz_ht && (nvm_flags & NVM_CHANNEL_40MHZ)) {
230 if ((ch_idx - NUM_2GHZ_CHANNELS) % 2 == 0)
231 flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
232 else
233 flags &= ~IEEE80211_CHAN_NO_HT40MINUS;
234 }
235 if (!(nvm_flags & NVM_CHANNEL_80MHZ))
236 flags |= IEEE80211_CHAN_NO_80MHZ;
237 if (!(nvm_flags & NVM_CHANNEL_160MHZ))
238 flags |= IEEE80211_CHAN_NO_160MHZ;
239
240 if (!(nvm_flags & NVM_CHANNEL_IBSS))
241 flags |= IEEE80211_CHAN_NO_IR;
242
243 if (!(nvm_flags & NVM_CHANNEL_ACTIVE))
244 flags |= IEEE80211_CHAN_NO_IR;
245
246 if (nvm_flags & NVM_CHANNEL_RADAR)
247 flags |= IEEE80211_CHAN_RADAR;
248
249 if (nvm_flags & NVM_CHANNEL_INDOOR_ONLY)
250 flags |= IEEE80211_CHAN_INDOOR_ONLY;
251
252 /* Set the GO concurrent flag only in case that NO_IR is set.
253 * Otherwise it is meaningless
254 */
255 if ((nvm_flags & NVM_CHANNEL_GO_CONCURRENT) &&
256 (flags & IEEE80211_CHAN_NO_IR))
257 flags |= IEEE80211_CHAN_IR_CONCURRENT;
258
259 return flags;
260}
261
262static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
263 struct iwl_nvm_data *data,
264 const __le16 * const nvm_ch_flags,
265 bool lar_supported)
266{
267 int ch_idx;
268 int n_channels = 0;
269 struct ieee80211_channel *channel;
270 u16 ch_flags;
271 bool is_5ghz;
272 int num_of_ch, num_2ghz_channels;
273 const u8 *nvm_chan;
274
275 if (cfg->device_family != IWL_DEVICE_FAMILY_8000) {
276 num_of_ch = IWL_NUM_CHANNELS;
277 nvm_chan = &iwl_nvm_channels[0];
278 num_2ghz_channels = NUM_2GHZ_CHANNELS;
279 } else {
280 num_of_ch = IWL_NUM_CHANNELS_FAMILY_8000;
281 nvm_chan = &iwl_nvm_channels_family_8000[0];
282 num_2ghz_channels = NUM_2GHZ_CHANNELS_FAMILY_8000;
283 }
284
285 for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) {
286 ch_flags = __le16_to_cpup(nvm_ch_flags + ch_idx);
287
288 if (ch_idx >= num_2ghz_channels &&
289 !data->sku_cap_band_52GHz_enable)
290 continue;
291
292 if (ch_flags & NVM_CHANNEL_160MHZ)
293 data->vht160_supported = true;
294
295 if (!lar_supported && !(ch_flags & NVM_CHANNEL_VALID)) {
296 /*
297 * Channels might become valid later if lar is
298 * supported, hence we still want to add them to
299 * the list of supported channels to cfg80211.
300 */
301 IWL_DEBUG_EEPROM(dev,
302 "Ch. %d Flags %x [%sGHz] - No traffic\n",
303 nvm_chan[ch_idx],
304 ch_flags,
305 (ch_idx >= num_2ghz_channels) ?
306 "5.2" : "2.4");
307 continue;
308 }
309
310 channel = &data->channels[n_channels];
311 n_channels++;
312
313 channel->hw_value = nvm_chan[ch_idx];
314 channel->band = (ch_idx < num_2ghz_channels) ?
315 NL80211_BAND_2GHZ : NL80211_BAND_5GHZ;
316 channel->center_freq =
317 ieee80211_channel_to_frequency(
318 channel->hw_value, channel->band);
319
320 /* Initialize regulatory-based run-time data */
321
322 /*
323 * Default value - highest tx power value. max_power
324 * is not used in mvm, and is used for backwards compatibility
325 */
326 channel->max_power = IWL_DEFAULT_MAX_TX_POWER;
327 is_5ghz = channel->band == NL80211_BAND_5GHZ;
328
329 /* don't put limitations in case we're using LAR */
330 if (!lar_supported)
331 channel->flags = iwl_get_channel_flags(nvm_chan[ch_idx],
332 ch_idx, is_5ghz,
333 ch_flags, cfg);
334 else
335 channel->flags = 0;
336
337 IWL_DEBUG_EEPROM(dev,
338 "Ch. %d [%sGHz] flags 0x%x %s%s%s%s%s%s%s%s%s%s(%ddBm): Ad-Hoc %ssupported\n",
339 channel->hw_value,
340 is_5ghz ? "5.2" : "2.4",
341 ch_flags,
342 CHECK_AND_PRINT_I(VALID),
343 CHECK_AND_PRINT_I(IBSS),
344 CHECK_AND_PRINT_I(ACTIVE),
345 CHECK_AND_PRINT_I(RADAR),
346 CHECK_AND_PRINT_I(INDOOR_ONLY),
347 CHECK_AND_PRINT_I(GO_CONCURRENT),
348 CHECK_AND_PRINT_I(WIDE),
349 CHECK_AND_PRINT_I(40MHZ),
350 CHECK_AND_PRINT_I(80MHZ),
351 CHECK_AND_PRINT_I(160MHZ),
352 channel->max_power,
353 ((ch_flags & NVM_CHANNEL_IBSS) &&
354 !(ch_flags & NVM_CHANNEL_RADAR))
355 ? "" : "not ");
356 }
357
358 return n_channels;
359}
360
361static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg,
362 struct iwl_nvm_data *data,
363 struct ieee80211_sta_vht_cap *vht_cap,
364 u8 tx_chains, u8 rx_chains)
365{
366 int num_rx_ants = num_of_ant(rx_chains);
367 int num_tx_ants = num_of_ant(tx_chains);
368 unsigned int max_ampdu_exponent = (cfg->max_vht_ampdu_exponent ?:
369 IEEE80211_VHT_MAX_AMPDU_1024K);
370
371 vht_cap->vht_supported = true;
372
373 vht_cap->cap = IEEE80211_VHT_CAP_SHORT_GI_80 |
374 IEEE80211_VHT_CAP_RXSTBC_1 |
375 IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
376 3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT |
377 max_ampdu_exponent <<
378 IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
379
380 if (data->vht160_supported)
381 vht_cap->cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
382 IEEE80211_VHT_CAP_SHORT_GI_160;
383
384 if (cfg->vht_mu_mimo_supported)
385 vht_cap->cap |= IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE;
386
387 if (cfg->ht_params->ldpc)
388 vht_cap->cap |= IEEE80211_VHT_CAP_RXLDPC;
389
390 if (data->sku_cap_mimo_disabled) {
391 num_rx_ants = 1;
392 num_tx_ants = 1;
393 }
394
395 if (num_tx_ants > 1)
396 vht_cap->cap |= IEEE80211_VHT_CAP_TXSTBC;
397 else
398 vht_cap->cap |= IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN;
399
400 switch (iwlwifi_mod_params.amsdu_size) {
401 case IWL_AMSDU_DEF:
402 if (cfg->mq_rx_supported)
403 vht_cap->cap |=
404 IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454;
405 else
406 vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895;
407 break;
408 case IWL_AMSDU_4K:
409 vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895;
410 break;
411 case IWL_AMSDU_8K:
412 vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991;
413 break;
414 case IWL_AMSDU_12K:
415 vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454;
416 break;
417 default:
418 break;
419 }
420
421 vht_cap->vht_mcs.rx_mcs_map =
422 cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
423 IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
424 IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
425 IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
426 IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
427 IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
428 IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
429 IEEE80211_VHT_MCS_NOT_SUPPORTED << 14);
430
431 if (num_rx_ants == 1 || cfg->rx_with_siso_diversity) {
432 vht_cap->cap |= IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN;
433 /* this works because NOT_SUPPORTED == 3 */
434 vht_cap->vht_mcs.rx_mcs_map |=
435 cpu_to_le16(IEEE80211_VHT_MCS_NOT_SUPPORTED << 2);
436 }
437
438 vht_cap->vht_mcs.tx_mcs_map = vht_cap->vht_mcs.rx_mcs_map;
439}
440
441static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg,
442 struct iwl_nvm_data *data,
443 const __le16 *ch_section,
444 u8 tx_chains, u8 rx_chains, bool lar_supported)
445{
446 int n_channels;
447 int n_used = 0;
448 struct ieee80211_supported_band *sband;
449
450 if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
451 n_channels = iwl_init_channel_map(
452 dev, cfg, data,
453 &ch_section[NVM_CHANNELS], lar_supported);
454 else
455 n_channels = iwl_init_channel_map(
456 dev, cfg, data,
457 &ch_section[NVM_CHANNELS_FAMILY_8000],
458 lar_supported);
459
460 sband = &data->bands[NL80211_BAND_2GHZ];
461 sband->band = NL80211_BAND_2GHZ;
462 sband->bitrates = &iwl_cfg80211_rates[RATES_24_OFFS];
463 sband->n_bitrates = N_RATES_24;
464 n_used += iwl_init_sband_channels(data, sband, n_channels,
465 NL80211_BAND_2GHZ);
466 iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, NL80211_BAND_2GHZ,
467 tx_chains, rx_chains);
468
469 sband = &data->bands[NL80211_BAND_5GHZ];
470 sband->band = NL80211_BAND_5GHZ;
471 sband->bitrates = &iwl_cfg80211_rates[RATES_52_OFFS];
472 sband->n_bitrates = N_RATES_52;
473 n_used += iwl_init_sband_channels(data, sband, n_channels,
474 NL80211_BAND_5GHZ);
475 iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, NL80211_BAND_5GHZ,
476 tx_chains, rx_chains);
477 if (data->sku_cap_11ac_enable && !iwlwifi_mod_params.disable_11ac)
478 iwl_init_vht_hw_capab(cfg, data, &sband->vht_cap,
479 tx_chains, rx_chains);
480
481 if (n_channels != n_used)
482 IWL_ERR_DEV(dev, "NVM: used only %d of %d channels\n",
483 n_used, n_channels);
484}
485
486static int iwl_get_sku(const struct iwl_cfg *cfg, const __le16 *nvm_sw,
487 const __le16 *phy_sku)
488{
489 if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
490 return le16_to_cpup(nvm_sw + SKU);
491
492 return le32_to_cpup((__le32 *)(phy_sku + SKU_FAMILY_8000));
493}
494
495static int iwl_get_nvm_version(const struct iwl_cfg *cfg, const __le16 *nvm_sw)
496{
497 if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
498 return le16_to_cpup(nvm_sw + NVM_VERSION);
499 else
500 return le32_to_cpup((__le32 *)(nvm_sw +
501 NVM_VERSION_FAMILY_8000));
502}
503
504static int iwl_get_radio_cfg(const struct iwl_cfg *cfg, const __le16 *nvm_sw,
505 const __le16 *phy_sku)
506{
507 if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
508 return le16_to_cpup(nvm_sw + RADIO_CFG);
509
510 return le32_to_cpup((__le32 *)(phy_sku + RADIO_CFG_FAMILY_8000));
511
512}
513
514static int iwl_get_n_hw_addrs(const struct iwl_cfg *cfg, const __le16 *nvm_sw)
515{
516 int n_hw_addr;
517
518 if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
519 return le16_to_cpup(nvm_sw + N_HW_ADDRS);
520
521 n_hw_addr = le32_to_cpup((__le32 *)(nvm_sw + N_HW_ADDRS_FAMILY_8000));
522
523 return n_hw_addr & N_HW_ADDR_MASK;
524}
525
526static void iwl_set_radio_cfg(const struct iwl_cfg *cfg,
527 struct iwl_nvm_data *data,
528 u32 radio_cfg)
529{
530 if (cfg->device_family != IWL_DEVICE_FAMILY_8000) {
531 data->radio_cfg_type = NVM_RF_CFG_TYPE_MSK(radio_cfg);
532 data->radio_cfg_step = NVM_RF_CFG_STEP_MSK(radio_cfg);
533 data->radio_cfg_dash = NVM_RF_CFG_DASH_MSK(radio_cfg);
534 data->radio_cfg_pnum = NVM_RF_CFG_PNUM_MSK(radio_cfg);
535 return;
536 }
537
538 /* set the radio configuration for family 8000 */
539 data->radio_cfg_type = NVM_RF_CFG_TYPE_MSK_FAMILY_8000(radio_cfg);
540 data->radio_cfg_step = NVM_RF_CFG_STEP_MSK_FAMILY_8000(radio_cfg);
541 data->radio_cfg_dash = NVM_RF_CFG_DASH_MSK_FAMILY_8000(radio_cfg);
542 data->radio_cfg_pnum = NVM_RF_CFG_FLAVOR_MSK_FAMILY_8000(radio_cfg);
543 data->valid_tx_ant = NVM_RF_CFG_TX_ANT_MSK_FAMILY_8000(radio_cfg);
544 data->valid_rx_ant = NVM_RF_CFG_RX_ANT_MSK_FAMILY_8000(radio_cfg);
545}
546
547static void iwl_flip_hw_address(__le32 mac_addr0, __le32 mac_addr1, u8 *dest)
548{
549 const u8 *hw_addr;
550
551 hw_addr = (const u8 *)&mac_addr0;
552 dest[0] = hw_addr[3];
553 dest[1] = hw_addr[2];
554 dest[2] = hw_addr[1];
555 dest[3] = hw_addr[0];
556
557 hw_addr = (const u8 *)&mac_addr1;
558 dest[4] = hw_addr[1];
559 dest[5] = hw_addr[0];
560}
561
562static void iwl_set_hw_address_from_csr(struct iwl_trans *trans,
563 struct iwl_nvm_data *data)
564{
565 __le32 mac_addr0 = cpu_to_le32(iwl_read32(trans, CSR_MAC_ADDR0_STRAP));
566 __le32 mac_addr1 = cpu_to_le32(iwl_read32(trans, CSR_MAC_ADDR1_STRAP));
567
568 iwl_flip_hw_address(mac_addr0, mac_addr1, data->hw_addr);
569 /*
570 * If the OEM fused a valid address, use it instead of the one in the
571 * OTP
572 */
573 if (is_valid_ether_addr(data->hw_addr))
574 return;
575
576 mac_addr0 = cpu_to_le32(iwl_read32(trans, CSR_MAC_ADDR0_OTP));
577 mac_addr1 = cpu_to_le32(iwl_read32(trans, CSR_MAC_ADDR1_OTP));
578
579 iwl_flip_hw_address(mac_addr0, mac_addr1, data->hw_addr);
580}
581
582static void iwl_set_hw_address_family_8000(struct iwl_trans *trans,
583 const struct iwl_cfg *cfg,
584 struct iwl_nvm_data *data,
585 const __le16 *mac_override,
586 const __le16 *nvm_hw)
587{
588 const u8 *hw_addr;
589
590 if (mac_override) {
591 static const u8 reserved_mac[] = {
592 0x02, 0xcc, 0xaa, 0xff, 0xee, 0x00
593 };
594
595 hw_addr = (const u8 *)(mac_override +
596 MAC_ADDRESS_OVERRIDE_FAMILY_8000);
597
598 /*
599 * Store the MAC address from MAO section.
600 * No byte swapping is required in MAO section
601 */
602 memcpy(data->hw_addr, hw_addr, ETH_ALEN);
603
604 /*
605 * Force the use of the OTP MAC address in case of reserved MAC
606 * address in the NVM, or if address is given but invalid.
607 */
608 if (is_valid_ether_addr(data->hw_addr) &&
609 memcmp(reserved_mac, hw_addr, ETH_ALEN) != 0)
610 return;
611
612 IWL_ERR(trans,
613 "mac address from nvm override section is not valid\n");
614 }
615
616 if (nvm_hw) {
617 /* read the mac address from WFMP registers */
618 __le32 mac_addr0 = cpu_to_le32(iwl_trans_read_prph(trans,
619 WFMP_MAC_ADDR_0));
620 __le32 mac_addr1 = cpu_to_le32(iwl_trans_read_prph(trans,
621 WFMP_MAC_ADDR_1));
622
623 iwl_flip_hw_address(mac_addr0, mac_addr1, data->hw_addr);
624
625 return;
626 }
627
628 IWL_ERR(trans, "mac address is not found\n");
629}
630
631static int iwl_set_hw_address(struct iwl_trans *trans,
632 const struct iwl_cfg *cfg,
633 struct iwl_nvm_data *data, const __le16 *nvm_hw,
634 const __le16 *mac_override)
635{
636 if (cfg->mac_addr_from_csr) {
637 iwl_set_hw_address_from_csr(trans, data);
638 } else if (cfg->device_family != IWL_DEVICE_FAMILY_8000) {
639 const u8 *hw_addr = (const u8 *)(nvm_hw + HW_ADDR);
640
641 /* The byte order is little endian 16 bit, meaning 214365 */
642 data->hw_addr[0] = hw_addr[1];
643 data->hw_addr[1] = hw_addr[0];
644 data->hw_addr[2] = hw_addr[3];
645 data->hw_addr[3] = hw_addr[2];
646 data->hw_addr[4] = hw_addr[5];
647 data->hw_addr[5] = hw_addr[4];
648 } else {
649 iwl_set_hw_address_family_8000(trans, cfg, data,
650 mac_override, nvm_hw);
651 }
652
653 if (!is_valid_ether_addr(data->hw_addr)) {
654 IWL_ERR(trans, "no valid mac address was found\n");
655 return -EINVAL;
656 }
657
658 return 0;
659}
660
661struct iwl_nvm_data *
662iwl_parse_nvm_data(struct iwl_trans *trans, const struct iwl_cfg *cfg,
663 const __le16 *nvm_hw, const __le16 *nvm_sw,
664 const __le16 *nvm_calib, const __le16 *regulatory,
665 const __le16 *mac_override, const __le16 *phy_sku,
666 u8 tx_chains, u8 rx_chains, bool lar_fw_supported)
667{
668 struct device *dev = trans->dev;
669 struct iwl_nvm_data *data;
670 bool lar_enabled;
671 u32 sku, radio_cfg;
672 u16 lar_config;
673 const __le16 *ch_section;
674
675 if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
676 data = kzalloc(sizeof(*data) +
677 sizeof(struct ieee80211_channel) *
678 IWL_NUM_CHANNELS,
679 GFP_KERNEL);
680 else
681 data = kzalloc(sizeof(*data) +
682 sizeof(struct ieee80211_channel) *
683 IWL_NUM_CHANNELS_FAMILY_8000,
684 GFP_KERNEL);
685 if (!data)
686 return NULL;
687
688 data->nvm_version = iwl_get_nvm_version(cfg, nvm_sw);
689
690 radio_cfg = iwl_get_radio_cfg(cfg, nvm_sw, phy_sku);
691 iwl_set_radio_cfg(cfg, data, radio_cfg);
692 if (data->valid_tx_ant)
693 tx_chains &= data->valid_tx_ant;
694 if (data->valid_rx_ant)
695 rx_chains &= data->valid_rx_ant;
696
697 sku = iwl_get_sku(cfg, nvm_sw, phy_sku);
698 data->sku_cap_band_24GHz_enable = sku & NVM_SKU_CAP_BAND_24GHZ;
699 data->sku_cap_band_52GHz_enable = sku & NVM_SKU_CAP_BAND_52GHZ;
700 data->sku_cap_11n_enable = sku & NVM_SKU_CAP_11N_ENABLE;
701 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_ALL)
702 data->sku_cap_11n_enable = false;
703 data->sku_cap_11ac_enable = data->sku_cap_11n_enable &&
704 (sku & NVM_SKU_CAP_11AC_ENABLE);
705 data->sku_cap_mimo_disabled = sku & NVM_SKU_CAP_MIMO_DISABLE;
706
707 data->n_hw_addrs = iwl_get_n_hw_addrs(cfg, nvm_sw);
708
709 if (cfg->device_family != IWL_DEVICE_FAMILY_8000) {
710 /* Checking for required sections */
711 if (!nvm_calib) {
712 IWL_ERR(trans,
713 "Can't parse empty Calib NVM sections\n");
714 kfree(data);
715 return NULL;
716 }
717 /* in family 8000 Xtal calibration values moved to OTP */
718 data->xtal_calib[0] = *(nvm_calib + XTAL_CALIB);
719 data->xtal_calib[1] = *(nvm_calib + XTAL_CALIB + 1);
720 lar_enabled = true;
721 ch_section = nvm_sw;
722 } else {
723 u16 lar_offset = data->nvm_version < 0xE39 ?
724 NVM_LAR_OFFSET_FAMILY_8000_OLD :
725 NVM_LAR_OFFSET_FAMILY_8000;
726
727 lar_config = le16_to_cpup(regulatory + lar_offset);
728 data->lar_enabled = !!(lar_config &
729 NVM_LAR_ENABLED_FAMILY_8000);
730 lar_enabled = data->lar_enabled;
731 ch_section = regulatory;
732 }
733
734 /* If no valid mac address was found - bail out */
735 if (iwl_set_hw_address(trans, cfg, data, nvm_hw, mac_override)) {
736 kfree(data);
737 return NULL;
738 }
739
740 iwl_init_sbands(dev, cfg, data, ch_section, tx_chains, rx_chains,
741 lar_fw_supported && lar_enabled);
742 data->calib_version = 255;
743
744 return data;
745}
746IWL_EXPORT_SYMBOL(iwl_parse_nvm_data);
747
748static u32 iwl_nvm_get_regdom_bw_flags(const u8 *nvm_chan,
749 int ch_idx, u16 nvm_flags,
750 const struct iwl_cfg *cfg)
751{
752 u32 flags = NL80211_RRF_NO_HT40;
753 u32 last_5ghz_ht = LAST_5GHZ_HT;
754
755 if (cfg->device_family == IWL_DEVICE_FAMILY_8000)
756 last_5ghz_ht = LAST_5GHZ_HT_FAMILY_8000;
757
758 if (ch_idx < NUM_2GHZ_CHANNELS &&
759 (nvm_flags & NVM_CHANNEL_40MHZ)) {
760 if (nvm_chan[ch_idx] <= LAST_2GHZ_HT_PLUS)
761 flags &= ~NL80211_RRF_NO_HT40PLUS;
762 if (nvm_chan[ch_idx] >= FIRST_2GHZ_HT_MINUS)
763 flags &= ~NL80211_RRF_NO_HT40MINUS;
764 } else if (nvm_chan[ch_idx] <= last_5ghz_ht &&
765 (nvm_flags & NVM_CHANNEL_40MHZ)) {
766 if ((ch_idx - NUM_2GHZ_CHANNELS) % 2 == 0)
767 flags &= ~NL80211_RRF_NO_HT40PLUS;
768 else
769 flags &= ~NL80211_RRF_NO_HT40MINUS;
770 }
771
772 if (!(nvm_flags & NVM_CHANNEL_80MHZ))
773 flags |= NL80211_RRF_NO_80MHZ;
774 if (!(nvm_flags & NVM_CHANNEL_160MHZ))
775 flags |= NL80211_RRF_NO_160MHZ;
776
777 if (!(nvm_flags & NVM_CHANNEL_ACTIVE))
778 flags |= NL80211_RRF_NO_IR;
779
780 if (nvm_flags & NVM_CHANNEL_RADAR)
781 flags |= NL80211_RRF_DFS;
782
783 if (nvm_flags & NVM_CHANNEL_INDOOR_ONLY)
784 flags |= NL80211_RRF_NO_OUTDOOR;
785
786 /* Set the GO concurrent flag only in case that NO_IR is set.
787 * Otherwise it is meaningless
788 */
789 if ((nvm_flags & NVM_CHANNEL_GO_CONCURRENT) &&
790 (flags & NL80211_RRF_NO_IR))
791 flags |= NL80211_RRF_GO_CONCURRENT;
792
793 return flags;
794}
795
796struct ieee80211_regdomain *
797iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
798 int num_of_ch, __le32 *channels, u16 fw_mcc)
799{
800 int ch_idx;
801 u16 ch_flags, prev_ch_flags = 0;
802 const u8 *nvm_chan = cfg->device_family == IWL_DEVICE_FAMILY_8000 ?
803 iwl_nvm_channels_family_8000 : iwl_nvm_channels;
804 struct ieee80211_regdomain *regd;
805 int size_of_regd;
806 struct ieee80211_reg_rule *rule;
807 enum nl80211_band band;
808 int center_freq, prev_center_freq = 0;
809 int valid_rules = 0;
810 bool new_rule;
811 int max_num_ch = cfg->device_family == IWL_DEVICE_FAMILY_8000 ?
812 IWL_NUM_CHANNELS_FAMILY_8000 : IWL_NUM_CHANNELS;
813
814 if (WARN_ON_ONCE(num_of_ch > NL80211_MAX_SUPP_REG_RULES))
815 return ERR_PTR(-EINVAL);
816
817 if (WARN_ON(num_of_ch > max_num_ch))
818 num_of_ch = max_num_ch;
819
820 IWL_DEBUG_DEV(dev, IWL_DL_LAR, "building regdom for %d channels\n",
821 num_of_ch);
822
823 /* build a regdomain rule for every valid channel */
824 size_of_regd =
825 sizeof(struct ieee80211_regdomain) +
826 num_of_ch * sizeof(struct ieee80211_reg_rule);
827
828 regd = kzalloc(size_of_regd, GFP_KERNEL);
829 if (!regd)
830 return ERR_PTR(-ENOMEM);
831
832 for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) {
833 ch_flags = (u16)__le32_to_cpup(channels + ch_idx);
834 band = (ch_idx < NUM_2GHZ_CHANNELS) ?
835 NL80211_BAND_2GHZ : NL80211_BAND_5GHZ;
836 center_freq = ieee80211_channel_to_frequency(nvm_chan[ch_idx],
837 band);
838 new_rule = false;
839
840 if (!(ch_flags & NVM_CHANNEL_VALID)) {
841 IWL_DEBUG_DEV(dev, IWL_DL_LAR,
842 "Ch. %d Flags %x [%sGHz] - No traffic\n",
843 nvm_chan[ch_idx],
844 ch_flags,
845 (ch_idx >= NUM_2GHZ_CHANNELS) ?
846 "5.2" : "2.4");
847 continue;
848 }
849
850 /* we can't continue the same rule */
851 if (ch_idx == 0 || prev_ch_flags != ch_flags ||
852 center_freq - prev_center_freq > 20) {
853 valid_rules++;
854 new_rule = true;
855 }
856
857 rule = ®d->reg_rules[valid_rules - 1];
858
859 if (new_rule)
860 rule->freq_range.start_freq_khz =
861 MHZ_TO_KHZ(center_freq - 10);
862
863 rule->freq_range.end_freq_khz = MHZ_TO_KHZ(center_freq + 10);
864
865 /* this doesn't matter - not used by FW */
866 rule->power_rule.max_antenna_gain = DBI_TO_MBI(6);
867 rule->power_rule.max_eirp =
868 DBM_TO_MBM(IWL_DEFAULT_MAX_TX_POWER);
869
870 rule->flags = iwl_nvm_get_regdom_bw_flags(nvm_chan, ch_idx,
871 ch_flags, cfg);
872
873 /* rely on auto-calculation to merge BW of contiguous chans */
874 rule->flags |= NL80211_RRF_AUTO_BW;
875 rule->freq_range.max_bandwidth_khz = 0;
876
877 prev_ch_flags = ch_flags;
878 prev_center_freq = center_freq;
879
880 IWL_DEBUG_DEV(dev, IWL_DL_LAR,
881 "Ch. %d [%sGHz] %s%s%s%s%s%s%s%s%s(0x%02x): Ad-Hoc %ssupported\n",
882 center_freq,
883 band == NL80211_BAND_5GHZ ? "5.2" : "2.4",
884 CHECK_AND_PRINT_I(VALID),
885 CHECK_AND_PRINT_I(ACTIVE),
886 CHECK_AND_PRINT_I(RADAR),
887 CHECK_AND_PRINT_I(WIDE),
888 CHECK_AND_PRINT_I(40MHZ),
889 CHECK_AND_PRINT_I(80MHZ),
890 CHECK_AND_PRINT_I(160MHZ),
891 CHECK_AND_PRINT_I(INDOOR_ONLY),
892 CHECK_AND_PRINT_I(GO_CONCURRENT),
893 ch_flags,
894 ((ch_flags & NVM_CHANNEL_ACTIVE) &&
895 !(ch_flags & NVM_CHANNEL_RADAR))
896 ? "" : "not ");
897 }
898
899 regd->n_reg_rules = valid_rules;
900
901 /* set alpha2 from FW. */
902 regd->alpha2[0] = fw_mcc >> 8;
903 regd->alpha2[1] = fw_mcc & 0xff;
904
905 return regd;
906}
907IWL_EXPORT_SYMBOL(iwl_parse_nvm_mcc_info);
908
909#ifdef CONFIG_ACPI
910#define WRDD_METHOD "WRDD"
911#define WRDD_WIFI (0x07)
912#define WRDD_WIGIG (0x10)
913
914static u32 iwl_wrdd_get_mcc(struct device *dev, union acpi_object *wrdd)
915{
916 union acpi_object *mcc_pkg, *domain_type, *mcc_value;
917 u32 i;
918
919 if (wrdd->type != ACPI_TYPE_PACKAGE ||
920 wrdd->package.count < 2 ||
921 wrdd->package.elements[0].type != ACPI_TYPE_INTEGER ||
922 wrdd->package.elements[0].integer.value != 0) {
923 IWL_DEBUG_EEPROM(dev, "Unsupported wrdd structure\n");
924 return 0;
925 }
926
927 for (i = 1 ; i < wrdd->package.count ; ++i) {
928 mcc_pkg = &wrdd->package.elements[i];
929
930 if (mcc_pkg->type != ACPI_TYPE_PACKAGE ||
931 mcc_pkg->package.count < 2 ||
932 mcc_pkg->package.elements[0].type != ACPI_TYPE_INTEGER ||
933 mcc_pkg->package.elements[1].type != ACPI_TYPE_INTEGER) {
934 mcc_pkg = NULL;
935 continue;
936 }
937
938 domain_type = &mcc_pkg->package.elements[0];
939 if (domain_type->integer.value == WRDD_WIFI)
940 break;
941
942 mcc_pkg = NULL;
943 }
944
945 if (mcc_pkg) {
946 mcc_value = &mcc_pkg->package.elements[1];
947 return mcc_value->integer.value;
948 }
949
950 return 0;
951}
952
953int iwl_get_bios_mcc(struct device *dev, char *mcc)
954{
955 acpi_handle root_handle;
956 acpi_handle handle;
957 struct acpi_buffer wrdd = {ACPI_ALLOCATE_BUFFER, NULL};
958 acpi_status status;
959 u32 mcc_val;
960
961 root_handle = ACPI_HANDLE(dev);
962 if (!root_handle) {
963 IWL_DEBUG_EEPROM(dev,
964 "Could not retrieve root port ACPI handle\n");
965 return -ENOENT;
966 }
967
968 /* Get the method's handle */
969 status = acpi_get_handle(root_handle, (acpi_string)WRDD_METHOD,
970 &handle);
971 if (ACPI_FAILURE(status)) {
972 IWL_DEBUG_EEPROM(dev, "WRD method not found\n");
973 return -ENOENT;
974 }
975
976 /* Call WRDD with no arguments */
977 status = acpi_evaluate_object(handle, NULL, NULL, &wrdd);
978 if (ACPI_FAILURE(status)) {
979 IWL_DEBUG_EEPROM(dev, "WRDC invocation failed (0x%x)\n",
980 status);
981 return -ENOENT;
982 }
983
984 mcc_val = iwl_wrdd_get_mcc(dev, wrdd.pointer);
985 kfree(wrdd.pointer);
986 if (!mcc_val)
987 return -ENOENT;
988
989 mcc[0] = (mcc_val >> 8) & 0xff;
990 mcc[1] = mcc_val & 0xff;
991 mcc[2] = '\0';
992 return 0;
993}
994IWL_EXPORT_SYMBOL(iwl_get_bios_mcc);
995#endif