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Release 4.11 drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c

Directory: drivers/net/wireless/intel/iwlwifi
/******************************************************************************
 *
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
 * Copyright(c) 2016 Intel Deutschland GmbH
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
 * USA
 *
 * The full GNU General Public License is included in this distribution
 * in the file called COPYING.
 *
 * Contact Information:
 *  Intel Linux Wireless <linuxwifi@intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 * BSD LICENSE
 *
 * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  * Neither the name Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *****************************************************************************/
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/export.h>
#include <linux/etherdevice.h>
#include <linux/pci.h>
#include <linux/acpi.h>
#include "iwl-drv.h"
#include "iwl-modparams.h"
#include "iwl-nvm-parse.h"
#include "iwl-prph.h"
#include "iwl-io.h"
#include "iwl-csr.h"

/* NVM offsets (in words) definitions */

enum wkp_nvm_offsets {
	/* NVM HW-Section offset (in words) definitions */
	
HW_ADDR = 0x15,

	/* NVM SW-Section offset (in words) definitions */
	
NVM_SW_SECTION = 0x1C0,
	
NVM_VERSION = 0,
	
RADIO_CFG = 1,
	
SKU = 2,
	
N_HW_ADDRS = 3,
	
NVM_CHANNELS = 0x1E0 - NVM_SW_SECTION,

	/* NVM calibration section offset (in words) definitions */
	
NVM_CALIB_SECTION = 0x2B8,
	
XTAL_CALIB = 0x316 - NVM_CALIB_SECTION
};


enum family_8000_nvm_offsets {
	/* NVM HW-Section offset (in words) definitions */
	
HW_ADDR0_WFPM_FAMILY_8000 = 0x12,
	
HW_ADDR1_WFPM_FAMILY_8000 = 0x16,
	
HW_ADDR0_PCIE_FAMILY_8000 = 0x8A,
	
HW_ADDR1_PCIE_FAMILY_8000 = 0x8E,
	
MAC_ADDRESS_OVERRIDE_FAMILY_8000 = 1,

	/* NVM SW-Section offset (in words) definitions */
	
NVM_SW_SECTION_FAMILY_8000 = 0x1C0,
	
NVM_VERSION_FAMILY_8000 = 0,
	
RADIO_CFG_FAMILY_8000 = 0,
	
SKU_FAMILY_8000 = 2,
	
N_HW_ADDRS_FAMILY_8000 = 3,

	/* NVM REGULATORY -Section offset (in words) definitions */
	
NVM_CHANNELS_FAMILY_8000 = 0,
	
NVM_LAR_OFFSET_FAMILY_8000_OLD = 0x4C7,
	
NVM_LAR_OFFSET_FAMILY_8000 = 0x507,
	
NVM_LAR_ENABLED_FAMILY_8000 = 0x7,

	/* NVM calibration section offset (in words) definitions */
	
NVM_CALIB_SECTION_FAMILY_8000 = 0x2B8,
	
XTAL_CALIB_FAMILY_8000 = 0x316 - NVM_CALIB_SECTION_FAMILY_8000
};

/* SKU Capabilities (actual values from NVM definition) */

enum nvm_sku_bits {
	
NVM_SKU_CAP_BAND_24GHZ		= BIT(0),
	
NVM_SKU_CAP_BAND_52GHZ		= BIT(1),
	
NVM_SKU_CAP_11N_ENABLE		= BIT(2),
	
NVM_SKU_CAP_11AC_ENABLE		= BIT(3),
	
NVM_SKU_CAP_MIMO_DISABLE	= BIT(5),
};

/*
 * These are the channel numbers in the order that they are stored in the NVM
 */

static const u8 iwl_nvm_channels[] = {
	/* 2.4 GHz */
	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
	/* 5 GHz */
	36, 40, 44 , 48, 52, 56, 60, 64,
	100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144,
	149, 153, 157, 161, 165
};


static const u8 iwl_nvm_channels_family_8000[] = {
	/* 2.4 GHz */
	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
	/* 5 GHz */
	36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92,
	96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144,
	149, 153, 157, 161, 165, 169, 173, 177, 181
};


#define IWL_NUM_CHANNELS		ARRAY_SIZE(iwl_nvm_channels)

#define IWL_NUM_CHANNELS_FAMILY_8000	ARRAY_SIZE(iwl_nvm_channels_family_8000)

#define NUM_2GHZ_CHANNELS		14

#define NUM_2GHZ_CHANNELS_FAMILY_8000	14

#define FIRST_2GHZ_HT_MINUS		5

#define LAST_2GHZ_HT_PLUS		9

#define LAST_5GHZ_HT			165

#define LAST_5GHZ_HT_FAMILY_8000	181

#define N_HW_ADDR_MASK			0xF

/* rate data (static) */

static struct ieee80211_rate iwl_cfg80211_rates[] = {
	{ .bitrate = 1 * 10, .hw_value = 0, .hw_value_short = 0, },
	{ .bitrate = 2 * 10, .hw_value = 1, .hw_value_short = 1,
	  .flags = IEEE80211_RATE_SHORT_PREAMBLE, },
	{ .bitrate = 5.5 * 10, .hw_value = 2, .hw_value_short = 2,
	  .flags = IEEE80211_RATE_SHORT_PREAMBLE, },
	{ .bitrate = 11 * 10, .hw_value = 3, .hw_value_short = 3,
	  .flags = IEEE80211_RATE_SHORT_PREAMBLE, },
	{ .bitrate = 6 * 10, .hw_value = 4, .hw_value_short = 4, },
	{ .bitrate = 9 * 10, .hw_value = 5, .hw_value_short = 5, },
	{ .bitrate = 12 * 10, .hw_value = 6, .hw_value_short = 6, },
	{ .bitrate = 18 * 10, .hw_value = 7, .hw_value_short = 7, },
	{ .bitrate = 24 * 10, .hw_value = 8, .hw_value_short = 8, },
	{ .bitrate = 36 * 10, .hw_value = 9, .hw_value_short = 9, },
	{ .bitrate = 48 * 10, .hw_value = 10, .hw_value_short = 10, },
	{ .bitrate = 54 * 10, .hw_value = 11, .hw_value_short = 11, },
};

#define RATES_24_OFFS	0

#define N_RATES_24	ARRAY_SIZE(iwl_cfg80211_rates)

#define RATES_52_OFFS	4

#define N_RATES_52	(N_RATES_24 - RATES_52_OFFS)

/**
 * enum iwl_nvm_channel_flags - channel flags in NVM
 * @NVM_CHANNEL_VALID: channel is usable for this SKU/geo
 * @NVM_CHANNEL_IBSS: usable as an IBSS channel
 * @NVM_CHANNEL_ACTIVE: active scanning allowed
 * @NVM_CHANNEL_RADAR: radar detection required
 * @NVM_CHANNEL_INDOOR_ONLY: only indoor use is allowed
 * @NVM_CHANNEL_GO_CONCURRENT: GO operation is allowed when connected to BSS
 *      on same channel on 2.4 or same UNII band on 5.2
 * @NVM_CHANNEL_WIDE: 20 MHz channel okay (?)
 * @NVM_CHANNEL_40MHZ: 40 MHz channel okay (?)
 * @NVM_CHANNEL_80MHZ: 80 MHz channel okay (?)
 * @NVM_CHANNEL_160MHZ: 160 MHz channel okay (?)
 */

enum iwl_nvm_channel_flags {
	
NVM_CHANNEL_VALID = BIT(0),
	
NVM_CHANNEL_IBSS = BIT(1),
	
NVM_CHANNEL_ACTIVE = BIT(3),
	
NVM_CHANNEL_RADAR = BIT(4),
	
NVM_CHANNEL_INDOOR_ONLY = BIT(5),
	
NVM_CHANNEL_GO_CONCURRENT = BIT(6),
	
NVM_CHANNEL_WIDE = BIT(8),
	
NVM_CHANNEL_40MHZ = BIT(9),
	
NVM_CHANNEL_80MHZ = BIT(10),
	
NVM_CHANNEL_160MHZ = BIT(11),
};


#define CHECK_AND_PRINT_I(x)	\
	((ch_flags & NVM_CHANNEL_##x) ? # x " " : "")




static u32 iwl_get_channel_flags(u8 ch_num, int ch_idx, bool is_5ghz,
				 u16 nvm_flags, const struct iwl_cfg *cfg)
{
	u32 flags = IEEE80211_CHAN_NO_HT40;
	u32 last_5ghz_ht = LAST_5GHZ_HT;

	if (cfg->device_family == IWL_DEVICE_FAMILY_8000)
		last_5ghz_ht = LAST_5GHZ_HT_FAMILY_8000;

	if (!is_5ghz && (nvm_flags & NVM_CHANNEL_40MHZ)) {
		if (ch_num <= LAST_2GHZ_HT_PLUS)
			flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
		if (ch_num >= FIRST_2GHZ_HT_MINUS)
			flags &= ~IEEE80211_CHAN_NO_HT40MINUS;
	} else if (ch_num <= last_5ghz_ht && (nvm_flags & NVM_CHANNEL_40MHZ)) {
		if ((ch_idx - NUM_2GHZ_CHANNELS) % 2 == 0)
			flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
		else
			flags &= ~IEEE80211_CHAN_NO_HT40MINUS;
	}
	if (!(nvm_flags & NVM_CHANNEL_80MHZ))
		flags |= IEEE80211_CHAN_NO_80MHZ;
	if (!(nvm_flags & NVM_CHANNEL_160MHZ))
		flags |= IEEE80211_CHAN_NO_160MHZ;

	if (!(nvm_flags & NVM_CHANNEL_IBSS))
		flags |= IEEE80211_CHAN_NO_IR;

	if (!(nvm_flags & NVM_CHANNEL_ACTIVE))
		flags |= IEEE80211_CHAN_NO_IR;

	if (nvm_flags & NVM_CHANNEL_RADAR)
		flags |= IEEE80211_CHAN_RADAR;

	if (nvm_flags & NVM_CHANNEL_INDOOR_ONLY)
		flags |= IEEE80211_CHAN_INDOOR_ONLY;

	/* Set the GO concurrent flag only in case that NO_IR is set.
         * Otherwise it is meaningless
         */
	if ((nvm_flags & NVM_CHANNEL_GO_CONCURRENT) &&
	    (flags & IEEE80211_CHAN_NO_IR))
		flags |= IEEE80211_CHAN_IR_CONCURRENT;

	return flags;
}


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Matti Gottlieb2411.27%133.33%


Total213100.00%3100.00%






static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
				struct iwl_nvm_data *data,
				const __le16 * const nvm_ch_flags,
				bool lar_supported)
{
	int ch_idx;
	int n_channels = 0;
	struct ieee80211_channel *channel;
	u16 ch_flags;
	bool is_5ghz;
	int num_of_ch, num_2ghz_channels;
	const u8 *nvm_chan;

	if (cfg->device_family != IWL_DEVICE_FAMILY_8000) {
		num_of_ch = IWL_NUM_CHANNELS;
		nvm_chan = &iwl_nvm_channels[0];
		num_2ghz_channels = NUM_2GHZ_CHANNELS;
	} else {
		num_of_ch = IWL_NUM_CHANNELS_FAMILY_8000;
		nvm_chan = &iwl_nvm_channels_family_8000[0];
		num_2ghz_channels = NUM_2GHZ_CHANNELS_FAMILY_8000;
	}

	for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) {
		ch_flags = __le16_to_cpup(nvm_ch_flags + ch_idx);

		if (ch_idx >= num_2ghz_channels &&
		    !data->sku_cap_band_52GHz_enable)
			continue;

		if (ch_flags & NVM_CHANNEL_160MHZ)
			data->vht160_supported = true;

		if (!lar_supported && !(ch_flags & NVM_CHANNEL_VALID)) {
			/*
                         * Channels might become valid later if lar is
                         * supported, hence we still want to add them to
                         * the list of supported channels to cfg80211.
                         */
			IWL_DEBUG_EEPROM(dev,
					 "Ch. %d Flags %x [%sGHz] - No traffic\n",
					 nvm_chan[ch_idx],
					 ch_flags,
					 (ch_idx >= num_2ghz_channels) ?
					 "5.2" : "2.4");
			continue;
		}

		channel = &data->channels[n_channels];
		n_channels++;

		channel->hw_value = nvm_chan[ch_idx];
		channel->band = (ch_idx < num_2ghz_channels) ?
				NL80211_BAND_2GHZ : NL80211_BAND_5GHZ;
		channel->center_freq =
			ieee80211_channel_to_frequency(
				channel->hw_value, channel->band);

		/* Initialize regulatory-based run-time data */

		/*
                 * Default value - highest tx power value.  max_power
                 * is not used in mvm, and is used for backwards compatibility
                 */
		channel->max_power = IWL_DEFAULT_MAX_TX_POWER;
		is_5ghz = channel->band == NL80211_BAND_5GHZ;

		/* don't put limitations in case we're using LAR */
		if (!lar_supported)
			channel->flags = iwl_get_channel_flags(nvm_chan[ch_idx],
							       ch_idx, is_5ghz,
							       ch_flags, cfg);
		else
			channel->flags = 0;

		IWL_DEBUG_EEPROM(dev,
				 "Ch. %d [%sGHz] flags 0x%x %s%s%s%s%s%s%s%s%s%s(%ddBm): Ad-Hoc %ssupported\n",
				 channel->hw_value,
				 is_5ghz ? "5.2" : "2.4",
				 ch_flags,
				 CHECK_AND_PRINT_I(VALID),
				 CHECK_AND_PRINT_I(IBSS),
				 CHECK_AND_PRINT_I(ACTIVE),
				 CHECK_AND_PRINT_I(RADAR),
				 CHECK_AND_PRINT_I(INDOOR_ONLY),
				 CHECK_AND_PRINT_I(GO_CONCURRENT),
				 CHECK_AND_PRINT_I(WIDE),
				 CHECK_AND_PRINT_I(40MHZ),
				 CHECK_AND_PRINT_I(80MHZ),
				 CHECK_AND_PRINT_I(160MHZ),
				 channel->max_power,
				 ((ch_flags & NVM_CHANNEL_IBSS) &&
				  !(ch_flags & NVM_CHANNEL_RADAR))
					? "" : "not ");
	}

	return n_channels;
}


Contributors
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Johannes Berg24563.14%220.00%


Eran Harary6215.98%220.00%


Gregory Greenman317.99%110.00%


Arik Nemtsov276.96%110.00%


Emmanuel Grumbach102.58%110.00%


David Spinadel92.32%110.00%


Eliad Peller20.52%110.00%


Matti Gottlieb20.52%110.00%


Total388100.00%10100.00%






static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg,
				  struct iwl_nvm_data *data,
				  struct ieee80211_sta_vht_cap *vht_cap,
				  u8 tx_chains, u8 rx_chains)
{
	int num_rx_ants = num_of_ant(rx_chains);
	int num_tx_ants = num_of_ant(tx_chains);
	unsigned int max_ampdu_exponent = (cfg->max_vht_ampdu_exponent ?:
					   IEEE80211_VHT_MAX_AMPDU_1024K);

	vht_cap->vht_supported = true;

	vht_cap->cap = IEEE80211_VHT_CAP_SHORT_GI_80 |
		       IEEE80211_VHT_CAP_RXSTBC_1 |
		       IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
		       3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT |
		       max_ampdu_exponent <<
		       IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;

	if (data->vht160_supported)
		vht_cap->cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
				IEEE80211_VHT_CAP_SHORT_GI_160;

	if (cfg->vht_mu_mimo_supported)
		vht_cap->cap |= IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE;

	if (cfg->ht_params->ldpc)
		vht_cap->cap |= IEEE80211_VHT_CAP_RXLDPC;

	if (data->sku_cap_mimo_disabled) {
		num_rx_ants = 1;
		num_tx_ants = 1;
	}

	if (num_tx_ants > 1)
		vht_cap->cap |= IEEE80211_VHT_CAP_TXSTBC;
	else
		vht_cap->cap |= IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN;

	switch (iwlwifi_mod_params.amsdu_size) {
	case IWL_AMSDU_DEF:
		if (cfg->mq_rx_supported)
			vht_cap->cap |=
				IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454;
		else
			vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895;
		break;
	case IWL_AMSDU_4K:
		vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895;
		break;
	case IWL_AMSDU_8K:
		vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991;
		break;
	case IWL_AMSDU_12K:
		vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454;
		break;
	default:
		break;
	}

	vht_cap->vht_mcs.rx_mcs_map =
		cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
			    IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
			    IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
			    IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
			    IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
			    IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
			    IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
			    IEEE80211_VHT_MCS_NOT_SUPPORTED << 14);

	if (num_rx_ants == 1 || cfg->rx_with_siso_diversity) {
		vht_cap->cap |= IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN;
		/* this works because NOT_SUPPORTED == 3 */
		vht_cap->vht_mcs.rx_mcs_map |=
			cpu_to_le16(IEEE80211_VHT_MCS_NOT_SUPPORTED << 2);
	}

	vht_cap->vht_mcs.tx_mcs_map = vht_cap->vht_mcs.rx_mcs_map;
}


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Emmanuel Grumbach6922.70%321.43%


Eyal Shapira3411.18%428.57%


Johannes Berg258.22%17.14%


Eran Harary144.61%17.14%


Sara Sharon134.28%214.29%


Gregory Greenman134.28%214.29%


Total304100.00%14100.00%






static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg,
			    struct iwl_nvm_data *data,
			    const __le16 *ch_section,
			    u8 tx_chains, u8 rx_chains, bool lar_supported)
{
	int n_channels;
	int n_used = 0;
	struct ieee80211_supported_band *sband;

	if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
		n_channels = iwl_init_channel_map(
				dev, cfg, data,
				&ch_section[NVM_CHANNELS], lar_supported);
	else
		n_channels = iwl_init_channel_map(
				dev, cfg, data,
				&ch_section[NVM_CHANNELS_FAMILY_8000],
				lar_supported);

	sband = &data->bands[NL80211_BAND_2GHZ];
	sband->band = NL80211_BAND_2GHZ;
	sband->bitrates = &iwl_cfg80211_rates[RATES_24_OFFS];
	sband->n_bitrates = N_RATES_24;
	n_used += iwl_init_sband_channels(data, sband, n_channels,
					  NL80211_BAND_2GHZ);
	iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, NL80211_BAND_2GHZ,
			     tx_chains, rx_chains);

	sband = &data->bands[NL80211_BAND_5GHZ];
	sband->band = NL80211_BAND_5GHZ;
	sband->bitrates = &iwl_cfg80211_rates[RATES_52_OFFS];
	sband->n_bitrates = N_RATES_52;
	n_used += iwl_init_sband_channels(data, sband, n_channels,
					  NL80211_BAND_5GHZ);
	iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, NL80211_BAND_5GHZ,
			     tx_chains, rx_chains);
	if (data->sku_cap_11ac_enable && !iwlwifi_mod_params.disable_11ac)
		iwl_init_vht_hw_capab(cfg, data, &sband->vht_cap,
				      tx_chains, rx_chains);

	if (n_channels != n_used)
		IWL_ERR_DEV(dev, "NVM: used only %d of %d channels\n",
			    n_used, n_channels);
}


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Johannes Berg17967.29%440.00%


Eran Harary4717.67%110.00%


Emmanuel Grumbach134.89%110.00%


Eytan Lifshitz124.51%110.00%


Arik Nemtsov72.63%110.00%


Andrei Otcheretianski51.88%110.00%


Eliad Peller31.13%110.00%


Total266100.00%10100.00%






static int iwl_get_sku(const struct iwl_cfg *cfg, const __le16 *nvm_sw,
		       const __le16 *phy_sku)
{
	if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
		return le16_to_cpup(nvm_sw + SKU);

	return le32_to_cpup((__le32 *)(phy_sku + SKU_FAMILY_8000));
}


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Johannes Berg1019.23%133.33%


Total52100.00%3100.00%






static int iwl_get_nvm_version(const struct iwl_cfg *cfg, const __le16 *nvm_sw)
{
	if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
		return le16_to_cpup(nvm_sw + NVM_VERSION);
	else
		return le32_to_cpup((__le32 *)(nvm_sw +
					       NVM_VERSION_FAMILY_8000));
}


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Johannes Berg1327.08%150.00%


Total48100.00%2100.00%






static int iwl_get_radio_cfg(const struct iwl_cfg *cfg, const __le16 *nvm_sw,
			     const __le16 *phy_sku)
{
	if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
		return le16_to_cpup(nvm_sw + RADIO_CFG);

	return le32_to_cpup((__le32 *)(phy_sku + RADIO_CFG_FAMILY_8000));

}


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Johannes Berg1223.08%125.00%


Liad Kaufman11.92%125.00%


Total52100.00%4100.00%






static int iwl_get_n_hw_addrs(const struct iwl_cfg *cfg, const __le16 *nvm_sw)
{
	int n_hw_addr;

	if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
		return le16_to_cpup(nvm_sw + N_HW_ADDRS);

	n_hw_addr = le32_to_cpup((__le32 *)(nvm_sw + N_HW_ADDRS_FAMILY_8000));

	return n_hw_addr & N_HW_ADDR_MASK;
}


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Eran Harary5292.86%266.67%


Johannes Berg47.14%133.33%


Total56100.00%3100.00%






static void iwl_set_radio_cfg(const struct iwl_cfg *cfg,
			      struct iwl_nvm_data *data,
			      u32 radio_cfg)
{
	if (cfg->device_family != IWL_DEVICE_FAMILY_8000) {
		data->radio_cfg_type = NVM_RF_CFG_TYPE_MSK(radio_cfg);
		data->radio_cfg_step = NVM_RF_CFG_STEP_MSK(radio_cfg);
		data->radio_cfg_dash = NVM_RF_CFG_DASH_MSK(radio_cfg);
		data->radio_cfg_pnum = NVM_RF_CFG_PNUM_MSK(radio_cfg);
		return;
	}

	/* set the radio configuration for family 8000 */
	data->radio_cfg_type = NVM_RF_CFG_TYPE_MSK_FAMILY_8000(radio_cfg);
	data->radio_cfg_step = NVM_RF_CFG_STEP_MSK_FAMILY_8000(radio_cfg);
	data->radio_cfg_dash = NVM_RF_CFG_DASH_MSK_FAMILY_8000(radio_cfg);
	data->radio_cfg_pnum = NVM_RF_CFG_FLAVOR_MSK_FAMILY_8000(radio_cfg);
	data->valid_tx_ant = NVM_RF_CFG_TX_ANT_MSK_FAMILY_8000(radio_cfg);
	data->valid_rx_ant = NVM_RF_CFG_RX_ANT_MSK_FAMILY_8000(radio_cfg);
}


Contributors
PersonTokensPropCommitsCommitProp
Eran Harary10384.43%133.33%


Moshe Harel1814.75%133.33%


Johannes Berg10.82%133.33%


Total122100.00%3100.00%






static void iwl_flip_hw_address(__le32 mac_addr0, __le32 mac_addr1, u8 *dest)
{
	const u8 *hw_addr;

	hw_addr = (const u8 *)&mac_addr0;
	dest[0] = hw_addr[3];
	dest[1] = hw_addr[2];
	dest[2] = hw_addr[1];
	dest[3] = hw_addr[0];

	hw_addr = (const u8 *)&mac_addr1;
	dest[4] = hw_addr[1];
	dest[5] = hw_addr[0];
}


Contributors
PersonTokensPropCommitsCommitProp
Sara Sharon101100.00%1100.00%


Total101100.00%1100.00%






static void iwl_set_hw_address_from_csr(struct iwl_trans *trans,
					struct iwl_nvm_data *data)
{
	__le32 mac_addr0 = cpu_to_le32(iwl_read32(trans, CSR_MAC_ADDR0_STRAP));
	__le32 mac_addr1 = cpu_to_le32(iwl_read32(trans, CSR_MAC_ADDR1_STRAP));

	iwl_flip_hw_address(mac_addr0, mac_addr1, data->hw_addr);
	/*
         * If the OEM fused a valid address, use it instead of the one in the
         * OTP
         */
	if (is_valid_ether_addr(data->hw_addr))
		return;

	mac_addr0 = cpu_to_le32(iwl_read32(trans, CSR_MAC_ADDR0_OTP));
	mac_addr1 = cpu_to_le32(iwl_read32(trans, CSR_MAC_ADDR1_OTP));

	iwl_flip_hw_address(mac_addr0, mac_addr1, data->hw_addr);
}


Contributors
PersonTokensPropCommitsCommitProp
Sara Sharon8080.81%150.00%


Haim Dreyfuss1919.19%150.00%


Total99100.00%2100.00%






static void 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 __le16 *nvm_hw)
{
	const u8 *hw_addr;

	if (mac_override) {
		static const u8 reserved_mac[] = {
			0x02, 0xcc, 0xaa, 0xff, 0xee, 0x00
		};

		hw_addr = (const u8 *)(mac_override +
				 MAC_ADDRESS_OVERRIDE_FAMILY_8000);

		/*
                 * Store the MAC address from MAO section.
                 * No byte swapping is required in MAO section
                 */
		memcpy(data->hw_addr, hw_addr, ETH_ALEN);

		/*
                 * Force the use of the OTP MAC address in case of reserved MAC
                 * address in the NVM, or if address is given but invalid.
                 */
		if (is_valid_ether_addr(data->hw_addr) &&
		    memcmp(reserved_mac, hw_addr, ETH_ALEN) != 0)
			return;

		IWL_ERR(trans,
			"mac address from nvm override section is not valid\n");
	}

	if (nvm_hw) {
		/* read the mac address from WFMP registers */
		__le32 mac_addr0 = cpu_to_le32(iwl_trans_read_prph(trans,
						WFMP_MAC_ADDR_0));
		__le32 mac_addr1 = cpu_to_le32(iwl_trans_read_prph(trans,
						WFMP_MAC_ADDR_1));

		iwl_flip_hw_address(mac_addr0, mac_addr1, data->hw_addr);

		return;
	}

	IWL_ERR(trans, "mac address is not found\n");
}


Contributors
PersonTokensPropCommitsCommitProp
Eran Harary9053.25%444.44%


Liad Kaufman3923.08%222.22%


Sara Sharon3621.30%222.22%


Johannes Berg42.37%111.11%


Total169100.00%9100.00%






static int iwl_set_hw_address(struct iwl_trans *trans,
			      const struct iwl_cfg *cfg,
			      struct iwl_nvm_data *data, const __le16 *nvm_hw,
			      const __le16 *mac_override)
{
	if (cfg->mac_addr_from_csr) {
		iwl_set_hw_address_from_csr(trans, data);
	} else if (cfg->device_family != IWL_DEVICE_FAMILY_8000) {
		const u8 *hw_addr = (const u8 *)(nvm_hw + HW_ADDR);

		/* The byte order is little endian 16 bit, meaning 214365 */
		data->hw_addr[0] = hw_addr[1];
		data->hw_addr[1] = hw_addr[0];
		data->hw_addr[2] = hw_addr[3];
		data->hw_addr[3] = hw_addr[2];
		data->hw_addr[4] = hw_addr[5];
		data->hw_addr[5] = hw_addr[4];
	} else {
		iwl_set_hw_address_family_8000(trans, cfg, data,
					       mac_override, nvm_hw);
	}

	if (!is_valid_ether_addr(data->hw_addr)) {
		IWL_ERR(trans, "no valid mac address was found\n");
		return -EINVAL;
	}

	return 0;
}


Contributors
PersonTokensPropCommitsCommitProp
Sara Sharon189100.00%2100.00%


Total189100.00%2100.00%





struct iwl_nvm_data *

iwl_parse_nvm_data(struct iwl_trans *trans, const struct iwl_cfg *cfg,
		   const __le16 *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, bool lar_fw_supported)
{
	struct device *dev = trans->dev;
	struct iwl_nvm_data *data;
	bool lar_enabled;
	u32 sku, radio_cfg;
	u16 lar_config;
	const __le16 *ch_section;

	if (cfg->device_family != IWL_DEVICE_FAMILY_8000)
		data = kzalloc(sizeof(*data) +
			       sizeof(struct ieee80211_channel) *
			       IWL_NUM_CHANNELS,
			       GFP_KERNEL);
	else
		data = kzalloc(sizeof(*data) +
			       sizeof(struct ieee80211_channel) *
			       IWL_NUM_CHANNELS_FAMILY_8000,
			       GFP_KERNEL);
	if (!data)
		return NULL;

	data->nvm_version = iwl_get_nvm_version(cfg, nvm_sw);

	radio_cfg = iwl_get_radio_cfg(cfg, nvm_sw, phy_sku);
	iwl_set_radio_cfg(cfg, data, radio_cfg);
	if (data->valid_tx_ant)
		tx_chains &= data->valid_tx_ant;
	if (data->valid_rx_ant)
		rx_chains &= data->valid_rx_ant;

	sku = iwl_get_sku(cfg, nvm_sw, phy_sku);
	data->sku_cap_band_24GHz_enable = sku & NVM_SKU_CAP_BAND_24GHZ;
	data->sku_cap_band_52GHz_enable = sku & NVM_SKU_CAP_BAND_52GHZ;
	data->sku_cap_11n_enable = sku & NVM_SKU_CAP_11N_ENABLE;
	if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_ALL)
		data->sku_cap_11n_enable = false;
	data->sku_cap_11ac_enable = data->sku_cap_11n_enable &&
				    (sku & NVM_SKU_CAP_11AC_ENABLE);
	data->sku_cap_mimo_disabled = sku & NVM_SKU_CAP_MIMO_DISABLE;

	data->n_hw_addrs = iwl_get_n_hw_addrs(cfg, nvm_sw);

	if (cfg->device_family != IWL_DEVICE_FAMILY_8000) {
		/* Checking for required sections */
		if (!nvm_calib) {
			IWL_ERR(trans,
				"Can't parse empty Calib NVM sections\n");
			kfree(data);
			return NULL;
		}
		/* in family 8000 Xtal calibration values moved to OTP */
		data->xtal_calib[0] = *(nvm_calib + XTAL_CALIB);
		data->xtal_calib[1] = *(nvm_calib + XTAL_CALIB + 1);
		lar_enabled = true;
		ch_section = nvm_sw;
	} else {
		u16 lar_offset = data->nvm_version < 0xE39 ?
				 NVM_LAR_OFFSET_FAMILY_8000_OLD :
				 NVM_LAR_OFFSET_FAMILY_8000;

		lar_config = le16_to_cpup(regulatory + lar_offset);
		data->lar_enabled = !!(lar_config &
				       NVM_LAR_ENABLED_FAMILY_8000);
		lar_enabled = data->lar_enabled;
		ch_section = regulatory;
	}

	/* If no valid mac address was found - bail out */
	if (iwl_set_hw_address(trans, cfg, data, nvm_hw, mac_override)) {
		kfree(data);
		return NULL;
	}

	iwl_init_sbands(dev, cfg, data, ch_section, tx_chains, rx_chains,
			lar_fw_supported && lar_enabled);
	data->calib_version = 255;

	return data;
}

Contributors
PersonTokensPropCommitsCommitProp
Johannes Berg21948.03%212.50%


Eran Harary8318.20%531.25%


Sara Sharon5512.06%212.50%


Matti Gottlieb275.92%16.25%


Moshe Harel245.26%16.25%


Emmanuel Grumbach173.73%212.50%


Arik Nemtsov173.73%212.50%


Eliad Peller143.07%16.25%


Total456100.00%16100.00%




IWL_EXPORT_SYMBOL(iwl_parse_nvm_data);




static u32 iwl_nvm_get_regdom_bw_flags(const u8 *nvm_chan,
				       int ch_idx, u16 nvm_flags,
				       const struct iwl_cfg *cfg)
{
	u32 flags = NL80211_RRF_NO_HT40;
	u32 last_5ghz_ht = LAST_5GHZ_HT;

	if (cfg->device_family == IWL_DEVICE_FAMILY_8000)
		last_5ghz_ht = LAST_5GHZ_HT_FAMILY_8000;

	if (ch_idx < NUM_2GHZ_CHANNELS &&
	    (nvm_flags & NVM_CHANNEL_40MHZ)) {
		if (nvm_chan[ch_idx] <= LAST_2GHZ_HT_PLUS)
			flags &= ~NL80211_RRF_NO_HT40PLUS;
		if (nvm_chan[ch_idx] >= FIRST_2GHZ_HT_MINUS)
			flags &= ~NL80211_RRF_NO_HT40MINUS;
	} else if (nvm_chan[ch_idx] <= last_5ghz_ht &&
		   (nvm_flags & NVM_CHANNEL_40MHZ)) {
		if ((ch_idx - NUM_2GHZ_CHANNELS) % 2 == 0)
			flags &= ~NL80211_RRF_NO_HT40PLUS;
		else
			flags &= ~NL80211_RRF_NO_HT40MINUS;
	}

	if (!(nvm_flags & NVM_CHANNEL_80MHZ))
		flags |= NL80211_RRF_NO_80MHZ;
	if (!(nvm_flags & NVM_CHANNEL_160MHZ))
		flags |= NL80211_RRF_NO_160MHZ;

	if (!(nvm_flags & NVM_CHANNEL_ACTIVE))
		flags |= NL80211_RRF_NO_IR;

	if (nvm_flags & NVM_CHANNEL_RADAR)
		flags |= NL80211_RRF_DFS;

	if (nvm_flags & NVM_CHANNEL_INDOOR_ONLY)
		flags |= NL80211_RRF_NO_OUTDOOR;

	/* Set the GO concurrent flag only in case that NO_IR is set.
         * Otherwise it is meaningless
         */
	if ((nvm_flags & NVM_CHANNEL_GO_CONCURRENT) &&
	    (flags & NL80211_RRF_NO_IR))
		flags |= NL80211_RRF_GO_CONCURRENT;

	return flags;
}


Contributors
PersonTokensPropCommitsCommitProp
Arik Nemtsov18588.52%150.00%


Matti Gottlieb2411.48%150.00%


Total209100.00%2100.00%





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)
{
	int ch_idx;
	u16 ch_flags, prev_ch_flags = 0;
	const u8 *nvm_chan = cfg->device_family == IWL_DEVICE_FAMILY_8000 ?
			     iwl_nvm_channels_family_8000 : iwl_nvm_channels;
	struct ieee80211_regdomain *regd;
	int size_of_regd;
	struct ieee80211_reg_rule *rule;
	enum nl80211_band band;
	int center_freq, prev_center_freq = 0;
	int valid_rules = 0;
	bool new_rule;
	int max_num_ch = cfg->device_family == IWL_DEVICE_FAMILY_8000 ?
			 IWL_NUM_CHANNELS_FAMILY_8000 : IWL_NUM_CHANNELS;

	if (WARN_ON_ONCE(num_of_ch > NL80211_MAX_SUPP_REG_RULES))
		return ERR_PTR(-EINVAL);

	if (WARN_ON(num_of_ch > max_num_ch))
		num_of_ch = max_num_ch;

	IWL_DEBUG_DEV(dev, IWL_DL_LAR, "building regdom for %d channels\n",
		      num_of_ch);

	/* build a regdomain rule for every valid channel */
	size_of_regd =
		sizeof(struct ieee80211_regdomain) +
		num_of_ch * sizeof(struct ieee80211_reg_rule);

	regd = kzalloc(size_of_regd, GFP_KERNEL);
	if (!regd)
		return ERR_PTR(-ENOMEM);

	for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) {
		ch_flags = (u16)__le32_to_cpup(channels + ch_idx);
		band = (ch_idx < NUM_2GHZ_CHANNELS) ?
		       NL80211_BAND_2GHZ : NL80211_BAND_5GHZ;
		center_freq = ieee80211_channel_to_frequency(nvm_chan[ch_idx],
							     band);
		new_rule = false;

		if (!(ch_flags & NVM_CHANNEL_VALID)) {
			IWL_DEBUG_DEV(dev, IWL_DL_LAR,
				      "Ch. %d Flags %x [%sGHz] - No traffic\n",
				      nvm_chan[ch_idx],
				      ch_flags,
				      (ch_idx >= NUM_2GHZ_CHANNELS) ?
				      "5.2" : "2.4");
			continue;
		}

		/* we can't continue the same rule */
		if (ch_idx == 0 || prev_ch_flags != ch_flags ||
		    center_freq - prev_center_freq > 20) {
			valid_rules++;
			new_rule = true;
		}

		rule = &regd->reg_rules[valid_rules - 1];

		if (new_rule)
			rule->freq_range.start_freq_khz =
						MHZ_TO_KHZ(center_freq - 10);

		rule->freq_range.end_freq_khz = MHZ_TO_KHZ(center_freq + 10);

		/* this doesn't matter - not used by FW */
		rule->power_rule.max_antenna_gain = DBI_TO_MBI(6);
		rule->power_rule.max_eirp =
			DBM_TO_MBM(IWL_DEFAULT_MAX_TX_POWER);

		rule->flags = iwl_nvm_get_regdom_bw_flags(nvm_chan, ch_idx,
							  ch_flags, cfg);

		/* rely on auto-calculation to merge BW of contiguous chans */
		rule->flags |= NL80211_RRF_AUTO_BW;
		rule->freq_range.max_bandwidth_khz = 0;

		prev_ch_flags = ch_flags;
		prev_center_freq = center_freq;

		IWL_DEBUG_DEV(dev, IWL_DL_LAR,
			      "Ch. %d [%sGHz] %s%s%s%s%s%s%s%s%s(0x%02x): Ad-Hoc %ssupported\n",
			      center_freq,
			      band == NL80211_BAND_5GHZ ? "5.2" : "2.4",
			      CHECK_AND_PRINT_I(VALID),
			      CHECK_AND_PRINT_I(ACTIVE),
			      CHECK_AND_PRINT_I(RADAR),
			      CHECK_AND_PRINT_I(WIDE),
			      CHECK_AND_PRINT_I(40MHZ),
			      CHECK_AND_PRINT_I(80MHZ),
			      CHECK_AND_PRINT_I(160MHZ),
			      CHECK_AND_PRINT_I(INDOOR_ONLY),
			      CHECK_AND_PRINT_I(GO_CONCURRENT),
			      ch_flags,
			      ((ch_flags & NVM_CHANNEL_ACTIVE) &&
			       !(ch_flags & NVM_CHANNEL_RADAR))
					 ? "" : "not ");
	}

	regd->n_reg_rules = valid_rules;

	/* set alpha2 from FW. */
	regd->alpha2[0] = fw_mcc >> 8;
	regd->alpha2[1] = fw_mcc & 0xff;

	return regd;
}

Contributors
PersonTokensPropCommitsCommitProp
Arik Nemtsov50898.64%457.14%


Johannes Berg40.78%114.29%


Matti Gottlieb20.39%114.29%


Eliad Peller10.19%114.29%


Total515100.00%7100.00%




IWL_EXPORT_SYMBOL(iwl_parse_nvm_mcc_info);

#ifdef CONFIG_ACPI

#define WRDD_METHOD		"WRDD"

#define WRDD_WIFI		(0x07)

#define WRDD_WIGIG		(0x10)




static u32 iwl_wrdd_get_mcc(struct device *dev, union acpi_object *wrdd)
{
	union acpi_object *mcc_pkg, *domain_type, *mcc_value;
	u32 i;

	if (wrdd->type != ACPI_TYPE_PACKAGE ||
	    wrdd->package.count < 2 ||
	    wrdd->package.elements[0].type != ACPI_TYPE_INTEGER ||
	    wrdd->package.elements[0].integer.value != 0) {
		IWL_DEBUG_EEPROM(dev, "Unsupported wrdd structure\n");
		return 0;
	}

	for (i = 1 ; i < wrdd->package.count ; ++i) {
		mcc_pkg = &wrdd->package.elements[i];

		if (mcc_pkg->type != ACPI_TYPE_PACKAGE ||
		    mcc_pkg->package.count < 2 ||
		    mcc_pkg->package.elements[0].type != ACPI_TYPE_INTEGER ||
		    mcc_pkg->package.elements[1].type != ACPI_TYPE_INTEGER) {
			mcc_pkg = NULL;
			continue;
		}

		domain_type = &mcc_pkg->package.elements[0];
		if (domain_type->integer.value == WRDD_WIFI)
			break;

		mcc_pkg = NULL;
	}

	if (mcc_pkg) {
		mcc_value = &mcc_pkg->package.elements[1];
		return mcc_value->integer.value;
	}

	return 0;
}


Contributors
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Arik Nemtsov221100.00%1100.00%


Total221100.00%1100.00%






int iwl_get_bios_mcc(struct device *dev, char *mcc)
{
	acpi_handle root_handle;
	acpi_handle handle;
	struct acpi_buffer wrdd = {ACPI_ALLOCATE_BUFFER, NULL};
	acpi_status status;
	u32 mcc_val;

	root_handle = ACPI_HANDLE(dev);
	if (!root_handle) {
		IWL_DEBUG_EEPROM(dev,
				 "Could not retrieve root port ACPI handle\n");
		return -ENOENT;
	}

	/* Get the method's handle */
	status = acpi_get_handle(root_handle, (acpi_string)WRDD_METHOD,
				 &handle);
	if (ACPI_FAILURE(status)) {
		IWL_DEBUG_EEPROM(dev, "WRD method not found\n");
		return -ENOENT;
	}

	/* Call WRDD with no arguments */
	status = acpi_evaluate_object(handle, NULL, NULL, &wrdd);
	if (ACPI_FAILURE(status)) {
		IWL_DEBUG_EEPROM(dev, "WRDC invocation failed (0x%x)\n",
				 status);
		return -ENOENT;
	}

	mcc_val = iwl_wrdd_get_mcc(dev, wrdd.pointer);
	kfree(wrdd.pointer);
	if (!mcc_val)
		return -ENOENT;

	mcc[0] = (mcc_val >> 8) & 0xff;
	mcc[1] = mcc_val & 0xff;
	mcc[2] = '\0';
	return 0;
}

Contributors
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Arik Nemtsov193100.00%1100.00%


Total193100.00%1100.00%




IWL_EXPORT_SYMBOL(iwl_get_bios_mcc);
#endif

Overall Contributors
PersonTokensPropCommitsCommitProp
Arik Nemtsov138230.90%815.09%


Johannes Berg125528.06%611.32%


Eran Harary75716.93%1018.87%


Sara Sharon48410.82%47.55%


Eytan Lifshitz1623.62%11.89%


Emmanuel Grumbach1182.64%611.32%


Matti Gottlieb912.03%23.77%


Gregory Greenman440.98%23.77%


Moshe Harel420.94%11.89%


Liad Kaufman400.89%35.66%


Eyal Shapira340.76%47.55%


Eliad Peller200.45%35.66%


David Spinadel190.42%11.89%


Haim Dreyfuss190.42%11.89%


Andrei Otcheretianski50.11%11.89%


Total4472100.00%53100.00%


Directory: drivers/net/wireless/intel/iwlwifi



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