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

/******************************************************************************
 *
 * 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) 2015 Intel Mobile Communications 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) 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 "iwl-drv.h"
#include "iwl-modparams.h"
#include "iwl-eeprom-parse.h"

/* EEPROM offset definitions */

/* indirect access definitions */

#define ADDRESS_MSK                 0x0000FFFF

#define INDIRECT_TYPE_MSK           0x000F0000

#define INDIRECT_HOST               0x00010000

#define INDIRECT_GENERAL            0x00020000

#define INDIRECT_REGULATORY         0x00030000

#define INDIRECT_CALIBRATION        0x00040000

#define INDIRECT_PROCESS_ADJST      0x00050000

#define INDIRECT_OTHERS             0x00060000

#define INDIRECT_TXP_LIMIT          0x00070000

#define INDIRECT_TXP_LIMIT_SIZE     0x00080000

#define INDIRECT_ADDRESS            0x00100000

/* corresponding link offsets in EEPROM */

#define EEPROM_LINK_HOST             (2*0x64)

#define EEPROM_LINK_GENERAL          (2*0x65)

#define EEPROM_LINK_REGULATORY       (2*0x66)

#define EEPROM_LINK_CALIBRATION      (2*0x67)

#define EEPROM_LINK_PROCESS_ADJST    (2*0x68)

#define EEPROM_LINK_OTHERS           (2*0x69)

#define EEPROM_LINK_TXP_LIMIT        (2*0x6a)

#define EEPROM_LINK_TXP_LIMIT_SIZE   (2*0x6b)

/* General */

#define EEPROM_DEVICE_ID                    (2*0x08)	
/* 2 bytes */

#define EEPROM_SUBSYSTEM_ID		    (2*0x0A)	
/* 2 bytes */

#define EEPROM_MAC_ADDRESS                  (2*0x15)	
/* 6  bytes */

#define EEPROM_BOARD_REVISION               (2*0x35)	
/* 2  bytes */

#define EEPROM_BOARD_PBA_NUMBER             (2*0x3B+1)	
/* 9  bytes */

#define EEPROM_VERSION                      (2*0x44)	
/* 2  bytes */

#define EEPROM_SKU_CAP                      (2*0x45)	
/* 2  bytes */

#define EEPROM_OEM_MODE                     (2*0x46)	
/* 2  bytes */

#define EEPROM_RADIO_CONFIG                 (2*0x48)	
/* 2  bytes */

#define EEPROM_NUM_MAC_ADDRESS              (2*0x4C)	
/* 2  bytes */

/* calibration */

struct iwl_eeprom_calib_hdr {
	
u8 version;
	
u8 pa_type;
	
__le16 voltage;
} 
__packed;


#define EEPROM_CALIB_ALL	(INDIRECT_ADDRESS | INDIRECT_CALIBRATION)

#define EEPROM_XTAL		((2*0x128) | EEPROM_CALIB_ALL)

/* temperature */

#define EEPROM_KELVIN_TEMPERATURE	((2*0x12A) | EEPROM_CALIB_ALL)

#define EEPROM_RAW_TEMPERATURE		((2*0x12B) | EEPROM_CALIB_ALL)

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

enum eeprom_sku_bits {
	
EEPROM_SKU_CAP_BAND_24GHZ	= BIT(4),
	
EEPROM_SKU_CAP_BAND_52GHZ	= BIT(5),
	
EEPROM_SKU_CAP_11N_ENABLE	= BIT(6),
	
EEPROM_SKU_CAP_AMT_ENABLE	= BIT(7),
	
EEPROM_SKU_CAP_IPAN_ENABLE	= BIT(8)
};

/* radio config bits (actual values from EEPROM definition) */

#define EEPROM_RF_CFG_TYPE_MSK(x)   (x & 0x3)         
/* bits 0-1   */

#define EEPROM_RF_CFG_STEP_MSK(x)   ((x >> 2)  & 0x3) 
/* bits 2-3   */

#define EEPROM_RF_CFG_DASH_MSK(x)   ((x >> 4)  & 0x3) 
/* bits 4-5   */

#define EEPROM_RF_CFG_PNUM_MSK(x)   ((x >> 6)  & 0x3) 
/* bits 6-7   */

#define EEPROM_RF_CFG_TX_ANT_MSK(x) ((x >> 8)  & 0xF) 
/* bits 8-11  */

#define EEPROM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) 
/* bits 12-15 */


/*
 * EEPROM bands
 * These are the channel numbers from each band in the order
 * that they are stored in the EEPROM band information. Note
 * that EEPROM bands aren't the same as mac80211 bands, and
 * there are even special "ht40 bands" in the EEPROM.
 */

static const u8 iwl_eeprom_band_1[14] = { /* 2.4 GHz */
	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
};


static const u8 iwl_eeprom_band_2[] = {	/* 4915-5080MHz */
	183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
};


static const u8 iwl_eeprom_band_3[] = {	/* 5170-5320MHz */
	34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
};


static const u8 iwl_eeprom_band_4[] = {	/* 5500-5700MHz */
	100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
};


static const u8 iwl_eeprom_band_5[] = {	/* 5725-5825MHz */
	145, 149, 153, 157, 161, 165
};


static const u8 iwl_eeprom_band_6[] = {	/* 2.4 ht40 channel */
	1, 2, 3, 4, 5, 6, 7
};


static const u8 iwl_eeprom_band_7[] = {	/* 5.2 ht40 channel */
	36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157
};


#define IWL_NUM_CHANNELS	(ARRAY_SIZE(iwl_eeprom_band_1) + \
                                 ARRAY_SIZE(iwl_eeprom_band_2) + \
                                 ARRAY_SIZE(iwl_eeprom_band_3) + \
                                 ARRAY_SIZE(iwl_eeprom_band_4) + \
                                 ARRAY_SIZE(iwl_eeprom_band_5))

/* 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)

/* EEPROM reading functions */


static u16 iwl_eeprom_query16(const u8 *eeprom, size_t eeprom_size, int offset) { if (WARN_ON(offset + sizeof(u16) > eeprom_size)) return 0; return le16_to_cpup((__le16 *)(eeprom + offset)); }

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static u32 eeprom_indirect_address(const u8 *eeprom, size_t eeprom_size, u32 address) { u16 offset = 0; if ((address & INDIRECT_ADDRESS) == 0) return address; switch (address & INDIRECT_TYPE_MSK) { case INDIRECT_HOST: offset = iwl_eeprom_query16(eeprom, eeprom_size, EEPROM_LINK_HOST); break; case INDIRECT_GENERAL: offset = iwl_eeprom_query16(eeprom, eeprom_size, EEPROM_LINK_GENERAL); break; case INDIRECT_REGULATORY: offset = iwl_eeprom_query16(eeprom, eeprom_size, EEPROM_LINK_REGULATORY); break; case INDIRECT_TXP_LIMIT: offset = iwl_eeprom_query16(eeprom, eeprom_size, EEPROM_LINK_TXP_LIMIT); break; case INDIRECT_TXP_LIMIT_SIZE: offset = iwl_eeprom_query16(eeprom, eeprom_size, EEPROM_LINK_TXP_LIMIT_SIZE); break; case INDIRECT_CALIBRATION: offset = iwl_eeprom_query16(eeprom, eeprom_size, EEPROM_LINK_CALIBRATION); break; case INDIRECT_PROCESS_ADJST: offset = iwl_eeprom_query16(eeprom, eeprom_size, EEPROM_LINK_PROCESS_ADJST); break; case INDIRECT_OTHERS: offset = iwl_eeprom_query16(eeprom, eeprom_size, EEPROM_LINK_OTHERS); break; default: WARN_ON(1); break; } /* translate the offset from words to byte */ return (address & ADDRESS_MSK) + (offset << 1); }

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static const u8 *iwl_eeprom_query_addr(const u8 *eeprom, size_t eeprom_size, u32 offset) { u32 address = eeprom_indirect_address(eeprom, eeprom_size, offset); if (WARN_ON(address >= eeprom_size)) return NULL; return &eeprom[address]; }

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static int iwl_eeprom_read_calib(const u8 *eeprom, size_t eeprom_size, struct iwl_nvm_data *data) { struct iwl_eeprom_calib_hdr *hdr; hdr = (void *)iwl_eeprom_query_addr(eeprom, eeprom_size, EEPROM_CALIB_ALL); if (!hdr) return -ENODATA; data->calib_version = hdr->version; data->calib_voltage = hdr->voltage; return 0; }

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/** * enum iwl_eeprom_channel_flags - channel flags in EEPROM * @EEPROM_CHANNEL_VALID: channel is usable for this SKU/geo * @EEPROM_CHANNEL_IBSS: usable as an IBSS channel * @EEPROM_CHANNEL_ACTIVE: active scanning allowed * @EEPROM_CHANNEL_RADAR: radar detection required * @EEPROM_CHANNEL_WIDE: 20 MHz channel okay (?) * @EEPROM_CHANNEL_DFS: dynamic freq selection candidate */ enum iwl_eeprom_channel_flags { EEPROM_CHANNEL_VALID = BIT(0), EEPROM_CHANNEL_IBSS = BIT(1), EEPROM_CHANNEL_ACTIVE = BIT(3), EEPROM_CHANNEL_RADAR = BIT(4), EEPROM_CHANNEL_WIDE = BIT(5), EEPROM_CHANNEL_DFS = BIT(7), }; /** * struct iwl_eeprom_channel - EEPROM channel data * @flags: %EEPROM_CHANNEL_* flags * @max_power_avg: max power (in dBm) on this channel, at most 31 dBm */ struct iwl_eeprom_channel { u8 flags; s8 max_power_avg; } __packed; enum iwl_eeprom_enhanced_txpwr_flags { IWL_EEPROM_ENH_TXP_FL_VALID = BIT(0), IWL_EEPROM_ENH_TXP_FL_BAND_52G = BIT(1), IWL_EEPROM_ENH_TXP_FL_OFDM = BIT(2), IWL_EEPROM_ENH_TXP_FL_40MHZ = BIT(3), IWL_EEPROM_ENH_TXP_FL_HT_AP = BIT(4), IWL_EEPROM_ENH_TXP_FL_RES1 = BIT(5), IWL_EEPROM_ENH_TXP_FL_RES2 = BIT(6), IWL_EEPROM_ENH_TXP_FL_COMMON_TYPE = BIT(7), }; /** * iwl_eeprom_enhanced_txpwr structure * @flags: entry flags * @channel: channel number * @chain_a_max_pwr: chain a max power in 1/2 dBm * @chain_b_max_pwr: chain b max power in 1/2 dBm * @chain_c_max_pwr: chain c max power in 1/2 dBm * @delta_20_in_40: 20-in-40 deltas (hi/lo) * @mimo2_max_pwr: mimo2 max power in 1/2 dBm * @mimo3_max_pwr: mimo3 max power in 1/2 dBm * * This structure presents the enhanced regulatory tx power limit layout * in an EEPROM image. */ struct iwl_eeprom_enhanced_txpwr { u8 flags; u8 channel; s8 chain_a_max; s8 chain_b_max; s8 chain_c_max; u8 delta_20_in_40; s8 mimo2_max; s8 mimo3_max; } __packed;
static s8 iwl_get_max_txpwr_half_dbm(const struct iwl_nvm_data *data, struct iwl_eeprom_enhanced_txpwr *txp) { s8 result = 0; /* (.5 dBm) */ /* Take the highest tx power from any valid chains */ if (data->valid_tx_ant & ANT_A && txp->chain_a_max > result) result = txp->chain_a_max; if (data->valid_tx_ant & ANT_B && txp->chain_b_max > result) result = txp->chain_b_max; if (data->valid_tx_ant & ANT_C && txp->chain_c_max > result) result = txp->chain_c_max; if ((data->valid_tx_ant == ANT_AB || data->valid_tx_ant == ANT_BC || data->valid_tx_ant == ANT_AC) && txp->mimo2_max > result) result = txp->mimo2_max; if (data->valid_tx_ant == ANT_ABC && txp->mimo3_max > result) result = txp->mimo3_max; return result; }

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#define EEPROM_TXP_OFFS (0x00 | INDIRECT_ADDRESS | INDIRECT_TXP_LIMIT) #define EEPROM_TXP_ENTRY_LEN sizeof(struct iwl_eeprom_enhanced_txpwr) #define EEPROM_TXP_SZ_OFFS (0x00 | INDIRECT_ADDRESS | INDIRECT_TXP_LIMIT_SIZE) #define TXP_CHECK_AND_PRINT(x) \ ((txp->flags & IWL_EEPROM_ENH_TXP_FL_##x) ? # x " " : "")
static void iwl_eeprom_enh_txp_read_element(struct iwl_nvm_data *data, struct iwl_eeprom_enhanced_txpwr *txp, int n_channels, s8 max_txpower_avg) { int ch_idx; enum nl80211_band band; band = txp->flags & IWL_EEPROM_ENH_TXP_FL_BAND_52G ? NL80211_BAND_5GHZ : NL80211_BAND_2GHZ; for (ch_idx = 0; ch_idx < n_channels; ch_idx++) { struct ieee80211_channel *chan = &data->channels[ch_idx]; /* update matching channel or from common data only */ if (txp->channel != 0 && chan->hw_value != txp->channel) continue; /* update matching band only */ if (band != chan->band) continue; if (chan->max_power < max_txpower_avg && !(txp->flags & IWL_EEPROM_ENH_TXP_FL_40MHZ)) chan->max_power = max_txpower_avg; } }

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static void iwl_eeprom_enhanced_txpower(struct device *dev, struct iwl_nvm_data *data, const u8 *eeprom, size_t eeprom_size, int n_channels) { struct iwl_eeprom_enhanced_txpwr *txp_array, *txp; int idx, entries; __le16 *txp_len; s8 max_txp_avg_halfdbm; BUILD_BUG_ON(sizeof(struct iwl_eeprom_enhanced_txpwr) != 8); /* the length is in 16-bit words, but we want entries */ txp_len = (__le16 *)iwl_eeprom_query_addr(eeprom, eeprom_size, EEPROM_TXP_SZ_OFFS); entries = le16_to_cpup(txp_len) * 2 / EEPROM_TXP_ENTRY_LEN; txp_array = (void *)iwl_eeprom_query_addr(eeprom, eeprom_size, EEPROM_TXP_OFFS); for (idx = 0; idx < entries; idx++) { txp = &txp_array[idx]; /* skip invalid entries */ if (!(txp->flags & IWL_EEPROM_ENH_TXP_FL_VALID)) continue; IWL_DEBUG_EEPROM(dev, "%s %d:\t %s%s%s%s%s%s%s%s (0x%02x)\n", (txp->channel && (txp->flags & IWL_EEPROM_ENH_TXP_FL_COMMON_TYPE)) ? "Common " : (txp->channel) ? "Channel" : "Common", (txp->channel), TXP_CHECK_AND_PRINT(VALID), TXP_CHECK_AND_PRINT(BAND_52G), TXP_CHECK_AND_PRINT(OFDM), TXP_CHECK_AND_PRINT(40MHZ), TXP_CHECK_AND_PRINT(HT_AP), TXP_CHECK_AND_PRINT(RES1), TXP_CHECK_AND_PRINT(RES2), TXP_CHECK_AND_PRINT(COMMON_TYPE), txp->flags); IWL_DEBUG_EEPROM(dev, "\t\t chain_A: %d chain_B: %d chain_C: %d\n", txp->chain_a_max, txp->chain_b_max, txp->chain_c_max); IWL_DEBUG_EEPROM(dev, "\t\t MIMO2: %d MIMO3: %d High 20_on_40: 0x%02x Low 20_on_40: 0x%02x\n", txp->mimo2_max, txp->mimo3_max, ((txp->delta_20_in_40 & 0xf0) >> 4), (txp->delta_20_in_40 & 0x0f)); max_txp_avg_halfdbm = iwl_get_max_txpwr_half_dbm(data, txp); iwl_eeprom_enh_txp_read_element(data, txp, n_channels, DIV_ROUND_UP(max_txp_avg_halfdbm, 2)); if (max_txp_avg_halfdbm > data->max_tx_pwr_half_dbm) data->max_tx_pwr_half_dbm = max_txp_avg_halfdbm; } }

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static void iwl_init_band_reference(const struct iwl_cfg *cfg, const u8 *eeprom, size_t eeprom_size, int eeprom_band, int *eeprom_ch_count, const struct iwl_eeprom_channel **ch_info, const u8 **eeprom_ch_array) { u32 offset = cfg->eeprom_params->regulatory_bands[eeprom_band - 1]; offset |= INDIRECT_ADDRESS | INDIRECT_REGULATORY; *ch_info = (void *)iwl_eeprom_query_addr(eeprom, eeprom_size, offset); switch (eeprom_band) { case 1: /* 2.4GHz band */ *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_1); *eeprom_ch_array = iwl_eeprom_band_1; break; case 2: /* 4.9GHz band */ *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_2); *eeprom_ch_array = iwl_eeprom_band_2; break; case 3: /* 5.2GHz band */ *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_3); *eeprom_ch_array = iwl_eeprom_band_3; break; case 4: /* 5.5GHz band */ *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_4); *eeprom_ch_array = iwl_eeprom_band_4; break; case 5: /* 5.7GHz band */ *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_5); *eeprom_ch_array = iwl_eeprom_band_5; break; case 6: /* 2.4GHz ht40 channels */ *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_6); *eeprom_ch_array = iwl_eeprom_band_6; break; case 7: /* 5 GHz ht40 channels */ *eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_7); *eeprom_ch_array = iwl_eeprom_band_7; break; default: *eeprom_ch_count = 0; *eeprom_ch_array = NULL; WARN_ON(1); } }

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#define CHECK_AND_PRINT(x) \ ((eeprom_ch->flags & EEPROM_CHANNEL_##x) ? # x " " : "")
static void iwl_mod_ht40_chan_info(struct device *dev, struct iwl_nvm_data *data, int n_channels, enum nl80211_band band, u16 channel, const struct iwl_eeprom_channel *eeprom_ch, u8 clear_ht40_extension_channel) { struct ieee80211_channel *chan = NULL; int i; for (i = 0; i < n_channels; i++) { if (data->channels[i].band != band) continue; if (data->channels[i].hw_value != channel) continue; chan = &data->channels[i]; break; } if (!chan) return; IWL_DEBUG_EEPROM(dev, "HT40 Ch. %d [%sGHz] %s%s%s%s%s(0x%02x %ddBm): Ad-Hoc %ssupported\n", channel, band == NL80211_BAND_5GHZ ? "5.2" : "2.4", CHECK_AND_PRINT(IBSS), CHECK_AND_PRINT(ACTIVE), CHECK_AND_PRINT(RADAR), CHECK_AND_PRINT(WIDE), CHECK_AND_PRINT(DFS), eeprom_ch->flags, eeprom_ch->max_power_avg, ((eeprom_ch->flags & EEPROM_CHANNEL_IBSS) && !(eeprom_ch->flags & EEPROM_CHANNEL_RADAR)) ? "" : "not "); if (eeprom_ch->flags & EEPROM_CHANNEL_VALID) chan->flags &= ~clear_ht40_extension_channel; }

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Total193100.00%5100.00%

#define CHECK_AND_PRINT_I(x) \ ((eeprom_ch_info[ch_idx].flags & EEPROM_CHANNEL_##x) ? # x " " : "")
static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg, struct iwl_nvm_data *data, const u8 *eeprom, size_t eeprom_size) { int band, ch_idx; const struct iwl_eeprom_channel *eeprom_ch_info; const u8 *eeprom_ch_array; int eeprom_ch_count; int n_channels = 0; /* * Loop through the 5 EEPROM bands and add them to the parse list */ for (band = 1; band <= 5; band++) { struct ieee80211_channel *channel; iwl_init_band_reference(cfg, eeprom, eeprom_size, band, &eeprom_ch_count, &eeprom_ch_info, &eeprom_ch_array); /* Loop through each band adding each of the channels */ for (ch_idx = 0; ch_idx < eeprom_ch_count; ch_idx++) { const struct iwl_eeprom_channel *eeprom_ch; eeprom_ch = &eeprom_ch_info[ch_idx]; if (!(eeprom_ch->flags & EEPROM_CHANNEL_VALID)) { IWL_DEBUG_EEPROM(dev, "Ch. %d Flags %x [%sGHz] - No traffic\n", eeprom_ch_array[ch_idx], eeprom_ch_info[ch_idx].flags, (band != 1) ? "5.2" : "2.4"); continue; } channel = &data->channels[n_channels]; n_channels++; channel->hw_value = eeprom_ch_array[ch_idx]; channel->band = (band == 1) ? NL80211_BAND_2GHZ : NL80211_BAND_5GHZ; channel->center_freq = ieee80211_channel_to_frequency( channel->hw_value, channel->band); /* set no-HT40, will enable as appropriate later */ channel->flags = IEEE80211_CHAN_NO_HT40; if (!(eeprom_ch->flags & EEPROM_CHANNEL_IBSS)) channel->flags |= IEEE80211_CHAN_NO_IR; if (!(eeprom_ch->flags & EEPROM_CHANNEL_ACTIVE)) channel->flags |= IEEE80211_CHAN_NO_IR; if (eeprom_ch->flags & EEPROM_CHANNEL_RADAR) channel->flags |= IEEE80211_CHAN_RADAR; /* Initialize regulatory-based run-time data */ channel->max_power = eeprom_ch_info[ch_idx].max_power_avg; IWL_DEBUG_EEPROM(dev, "Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x %ddBm): Ad-Hoc %ssupported\n", channel->hw_value, (band != 1) ? "5.2" : "2.4", CHECK_AND_PRINT_I(VALID), CHECK_AND_PRINT_I(IBSS), CHECK_AND_PRINT_I(ACTIVE), CHECK_AND_PRINT_I(RADAR), CHECK_AND_PRINT_I(WIDE), CHECK_AND_PRINT_I(DFS), eeprom_ch_info[ch_idx].flags, eeprom_ch_info[ch_idx].max_power_avg, ((eeprom_ch_info[ch_idx].flags & EEPROM_CHANNEL_IBSS) && !(eeprom_ch_info[ch_idx].flags & EEPROM_CHANNEL_RADAR)) ? "" : "not "); } } if (cfg->eeprom_params->enhanced_txpower) { /* * for newer device (6000 series and up) * EEPROM contain enhanced tx power information * driver need to process addition information * to determine the max channel tx power limits */ iwl_eeprom_enhanced_txpower(dev, data, eeprom, eeprom_size, n_channels); } else { /* All others use data from channel map */ int i; data->max_tx_pwr_half_dbm = -128; for (i = 0; i < n_channels; i++) data->max_tx_pwr_half_dbm = max_t(s8, data->max_tx_pwr_half_dbm, data->channels[i].max_power * 2); } /* Check if we do have HT40 channels */ if (cfg->eeprom_params->regulatory_bands[5] == EEPROM_REGULATORY_BAND_NO_HT40 && cfg->eeprom_params->regulatory_bands[6] == EEPROM_REGULATORY_BAND_NO_HT40) return n_channels; /* Two additional EEPROM bands for 2.4 and 5 GHz HT40 channels */ for (band = 6; band <= 7; band++) { enum nl80211_band ieeeband; iwl_init_band_reference(cfg, eeprom, eeprom_size, band, &eeprom_ch_count, &eeprom_ch_info, &eeprom_ch_array); /* EEPROM band 6 is 2.4, band 7 is 5 GHz */ ieeeband = (band == 6) ? NL80211_BAND_2GHZ : NL80211_BAND_5GHZ; /* Loop through each band adding each of the channels */ for (ch_idx = 0; ch_idx < eeprom_ch_count; ch_idx++) { /* Set up driver's info for lower half */ iwl_mod_ht40_chan_info(dev, data, n_channels, ieeeband, eeprom_ch_array[ch_idx], &eeprom_ch_info[ch_idx], IEEE80211_CHAN_NO_HT40PLUS); /* Set up driver's info for upper half */ iwl_mod_ht40_chan_info(dev, data, n_channels, ieeeband, eeprom_ch_array[ch_idx] + 4, &eeprom_ch_info[ch_idx], IEEE80211_CHAN_NO_HT40MINUS); } } return n_channels; }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Berg47578.25%422.22%
Wey-Yi Guy9415.49%422.22%
Assaf Krauss233.79%15.56%
Yi Zhu50.82%15.56%
Tomas Winkler30.49%211.11%
Luis R. Rodriguez20.33%15.56%
Emmanuel Grumbach20.33%211.11%
Abhijeet Kolekar10.16%15.56%
Eytan Lifshitz10.16%15.56%
Don Fry10.16%15.56%
Total607100.00%18100.00%


int iwl_init_sband_channels(struct iwl_nvm_data *data, struct ieee80211_supported_band *sband, int n_channels, enum nl80211_band band) { struct ieee80211_channel *chan = &data->channels[0]; int n = 0, idx = 0; while (idx < n_channels && chan->band != band) chan = &data->channels[++idx]; sband->channels = &data->channels[idx]; while (idx < n_channels && chan->band == band) { chan = &data->channels[++idx]; n++; } sband->n_channels = n; return n; }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Berg8371.55%225.00%
Wey-Yi Guy1412.07%225.00%
Tomas Winkler108.62%225.00%
Adrien Schildknecht86.90%112.50%
Eytan Lifshitz10.86%112.50%
Total116100.00%8100.00%

#define MAX_BIT_RATE_40_MHZ 150 /* Mbps */ #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
void iwl_init_ht_hw_capab(const struct iwl_cfg *cfg, struct iwl_nvm_data *data, struct ieee80211_sta_ht_cap *ht_info, enum nl80211_band band, u8 tx_chains, u8 rx_chains) { int max_bit_rate = 0; tx_chains = hweight8(tx_chains); if (cfg->rx_with_siso_diversity) rx_chains = 1; else rx_chains = hweight8(rx_chains); if (!(data->sku_cap_11n_enable) || !cfg->ht_params) { ht_info->ht_supported = false; return; } if (data->sku_cap_mimo_disabled) rx_chains = 1; ht_info->ht_supported = true; ht_info->cap = IEEE80211_HT_CAP_DSSSCCK40; if (cfg->ht_params->stbc) { ht_info->cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT); if (tx_chains > 1) ht_info->cap |= IEEE80211_HT_CAP_TX_STBC; } if (cfg->ht_params->ldpc) ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING; if ((cfg->mq_rx_supported && iwlwifi_mod_params.amsdu_size != IWL_AMSDU_4K) || iwlwifi_mod_params.amsdu_size >= IWL_AMSDU_8K) ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU; ht_info->ampdu_factor = cfg->max_ht_ampdu_exponent; ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_4; ht_info->mcs.rx_mask[0] = 0xFF; if (rx_chains >= 2) ht_info->mcs.rx_mask[1] = 0xFF; if (rx_chains >= 3) ht_info->mcs.rx_mask[2] = 0xFF; if (cfg->ht_params->ht_greenfield_support) ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; ht_info->cap |= IEEE80211_HT_CAP_SGI_20; max_bit_rate = MAX_BIT_RATE_20_MHZ; if (cfg->ht_params->ht40_bands & BIT(band)) { ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; ht_info->cap |= IEEE80211_HT_CAP_SGI_40; max_bit_rate = MAX_BIT_RATE_40_MHZ; } /* Highest supported Rx data rate */ max_bit_rate *= rx_chains; WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK); ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate); /* Tx MCS capabilities */ ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; if (tx_chains != rx_chains) { ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF; ht_info->mcs.tx_params |= ((tx_chains - 1) << IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT); } }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Berg22863.87%320.00%
Eyal Shapira4612.89%213.33%
Emmanuel Grumbach339.24%426.67%
Wey-Yi Guy267.28%213.33%
Assaf Krauss102.80%16.67%
Tomas Winkler92.52%16.67%
Eran Harary30.84%16.67%
Eytan Lifshitz20.56%16.67%
Total357100.00%15100.00%


static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg, struct iwl_nvm_data *data, const u8 *eeprom, size_t eeprom_size) { int n_channels = iwl_init_channel_map(dev, cfg, data, eeprom, eeprom_size); int n_used = 0; struct ieee80211_supported_band *sband; 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, data->valid_tx_ant, data->valid_rx_ant); 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, data->valid_tx_ant, data->valid_rx_ant); if (n_channels != n_used) IWL_ERR_DEV(dev, "EEPROM: used only %d of %d channels\n", n_used, n_channels); }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Berg14369.08%228.57%
Wey-Yi Guy4722.71%342.86%
Emmanuel Grumbach167.73%114.29%
Eytan Lifshitz10.48%114.29%
Total207100.00%7100.00%

/* EEPROM data functions */
struct iwl_nvm_data * iwl_parse_eeprom_data(struct device *dev, const struct iwl_cfg *cfg, const u8 *eeprom, size_t eeprom_size) { struct iwl_nvm_data *data; const void *tmp; u16 radio_cfg, sku; if (WARN_ON(!cfg || !cfg->eeprom_params)) return NULL; data = kzalloc(sizeof(*data) + sizeof(struct ieee80211_channel) * IWL_NUM_CHANNELS, GFP_KERNEL); if (!data) return NULL; /* get MAC address(es) */ tmp = iwl_eeprom_query_addr(eeprom, eeprom_size, EEPROM_MAC_ADDRESS); if (!tmp) goto err_free; memcpy(data->hw_addr, tmp, ETH_ALEN); data->n_hw_addrs = iwl_eeprom_query16(eeprom, eeprom_size, EEPROM_NUM_MAC_ADDRESS); if (iwl_eeprom_read_calib(eeprom, eeprom_size, data)) goto err_free; tmp = iwl_eeprom_query_addr(eeprom, eeprom_size, EEPROM_XTAL); if (!tmp) goto err_free; memcpy(data->xtal_calib, tmp, sizeof(data->xtal_calib)); tmp = iwl_eeprom_query_addr(eeprom, eeprom_size, EEPROM_RAW_TEMPERATURE); if (!tmp) goto err_free; data->raw_temperature = *(__le16 *)tmp; tmp = iwl_eeprom_query_addr(eeprom, eeprom_size, EEPROM_KELVIN_TEMPERATURE); if (!tmp) goto err_free; data->kelvin_temperature = *(__le16 *)tmp; data->kelvin_voltage = *((__le16 *)tmp + 1); radio_cfg = iwl_eeprom_query16(eeprom, eeprom_size, EEPROM_RADIO_CONFIG); data->radio_cfg_dash = EEPROM_RF_CFG_DASH_MSK(radio_cfg); data->radio_cfg_pnum = EEPROM_RF_CFG_PNUM_MSK(radio_cfg); data->radio_cfg_step = EEPROM_RF_CFG_STEP_MSK(radio_cfg); data->radio_cfg_type = EEPROM_RF_CFG_TYPE_MSK(radio_cfg); data->valid_rx_ant = EEPROM_RF_CFG_RX_ANT_MSK(radio_cfg); data->valid_tx_ant = EEPROM_RF_CFG_TX_ANT_MSK(radio_cfg); sku = iwl_eeprom_query16(eeprom, eeprom_size, EEPROM_SKU_CAP); data->sku_cap_11n_enable = sku & EEPROM_SKU_CAP_11N_ENABLE; data->sku_cap_amt_enable = sku & EEPROM_SKU_CAP_AMT_ENABLE; data->sku_cap_band_24GHz_enable = sku & EEPROM_SKU_CAP_BAND_24GHZ; data->sku_cap_band_52GHz_enable = sku & EEPROM_SKU_CAP_BAND_52GHZ; data->sku_cap_ipan_enable = sku & EEPROM_SKU_CAP_IPAN_ENABLE; if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_ALL) data->sku_cap_11n_enable = false; data->nvm_version = iwl_eeprom_query16(eeprom, eeprom_size, EEPROM_VERSION); /* check overrides (some devices have wrong EEPROM) */ if (cfg->valid_tx_ant) data->valid_tx_ant = cfg->valid_tx_ant; if (cfg->valid_rx_ant) data->valid_rx_ant = cfg->valid_rx_ant; if (!data->valid_tx_ant || !data->valid_rx_ant) { IWL_ERR_DEV(dev, "invalid antennas (0x%x, 0x%x)\n", data->valid_tx_ant, data->valid_rx_ant); goto err_free; } iwl_init_sbands(dev, cfg, data, eeprom, eeprom_size); return data; err_free: kfree(data); return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Berg26654.96%220.00%
Eytan Lifshitz10321.28%110.00%
Assaf Krauss9820.25%110.00%
Samuel Ortiz71.45%110.00%
Wey-Yi Guy61.24%110.00%
Emmanuel Grumbach20.41%220.00%
Tomas Winkler20.41%220.00%
Total484100.00%10100.00%

IWL_EXPORT_SYMBOL(iwl_parse_eeprom_data); /* helper functions */
int iwl_nvm_check_version(struct iwl_nvm_data *data, struct iwl_trans *trans) { if (data->nvm_version >= trans->cfg->nvm_ver || data->calib_version >= trans->cfg->nvm_calib_ver) { IWL_DEBUG_INFO(trans, "device EEPROM VER=0x%x, CALIB=0x%x\n", data->nvm_version, data->calib_version); return 0; } IWL_ERR(trans, "Unsupported (too old) EEPROM VER=0x%x < 0x%x CALIB=0x%x < 0x%x\n", data->nvm_version, trans->cfg->nvm_ver, data->calib_version, trans->cfg->nvm_calib_ver); return -EINVAL; }

Contributors

PersonTokensPropCommitsCommitProp
Johannes Berg4854.55%228.57%
Wey-Yi Guy1213.64%114.29%
Assaf Krauss1213.64%114.29%
Eytan Lifshitz910.23%114.29%
Emmanuel Grumbach77.95%228.57%
Total88100.00%7100.00%

IWL_EXPORT_SYMBOL(iwl_nvm_check_version);

Overall Contributors

PersonTokensPropCommitsCommitProp
Johannes Berg291169.89%1423.73%
Wey-Yi Guy50412.10%1322.03%
Assaf Krauss3658.76%23.39%
Eytan Lifshitz2125.09%11.69%
Emmanuel Grumbach651.56%1220.34%
Eyal Shapira461.10%23.39%
Tomas Winkler250.60%58.47%
Adrien Schildknecht80.19%11.69%
Don Fry70.17%23.39%
Samuel Ortiz70.17%11.69%
Yi Zhu50.12%11.69%
Tejun Heo30.07%11.69%
Eran Harary30.07%11.69%
Luis R. Rodriguez20.05%11.69%
Jay Sternberg10.02%11.69%
Abhijeet Kolekar10.02%11.69%
Total4165100.00%59100.00%
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