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ubuntu-linux-kernel/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c

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/******************************************************************************
*
* 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 - 2017 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
* Copyright(c) 2016 - 2017 Intel Deutschland 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 "iwl-drv.h"
#include "iwl-modparams.h"
#include "iwl-nvm-parse.h"
#include "iwl-prph.h"
#include "iwl-io.h"
#include "iwl-csr.h"
#include "fw/acpi.h"
/* NVM offsets (in words) definitions */
enum nvm_offsets {
/* NVM HW-Section offset (in words) definitions */
SUBSYSTEM_ID = 0x0A,
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,
/* NVM REGULATORY -Section offset (in words) definitions */
NVM_CHANNELS_SDP = 0,
};
enum ext_nvm_offsets {
/* NVM HW-Section offset (in words) definitions */
MAC_ADDRESS_OVERRIDE_EXT_NVM = 1,
/* NVM SW-Section offset (in words) definitions */
NVM_VERSION_EXT_NVM = 0,
RADIO_CFG_FAMILY_EXT_NVM = 0,
SKU_FAMILY_8000 = 2,
N_HW_ADDRS_FAMILY_8000 = 3,
/* NVM REGULATORY -Section offset (in words) definitions */
NVM_CHANNELS_EXTENDED = 0,
NVM_LAR_OFFSET_OLD = 0x4C7,
NVM_LAR_OFFSET = 0x507,
NVM_LAR_ENABLED = 0x7,
};
/* 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_ext_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, 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_EXT ARRAY_SIZE(iwl_ext_nvm_channels)
#define NUM_2GHZ_CHANNELS 14
#define NUM_2GHZ_CHANNELS_EXT 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_UNIFORM: uniform spreading required
* @NVM_CHANNEL_20MHZ: 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
* @NVM_CHANNEL_DC_HIGH: DC HIGH required/allowed (?)
*/
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_UNIFORM = BIT(7),
NVM_CHANNEL_20MHZ = BIT(8),
NVM_CHANNEL_40MHZ = BIT(9),
NVM_CHANNEL_80MHZ = BIT(10),
NVM_CHANNEL_160MHZ = BIT(11),
NVM_CHANNEL_DC_HIGH = BIT(12),
};
static inline void iwl_nvm_print_channel_flags(struct device *dev, u32 level,
int chan, u16 flags)
{
#define CHECK_AND_PRINT_I(x) \
((flags & NVM_CHANNEL_##x) ? " " #x : "")
if (!(flags & NVM_CHANNEL_VALID)) {
IWL_DEBUG_DEV(dev, level, "Ch. %d: 0x%x: No traffic\n",
chan, flags);
return;
}
/* Note: already can print up to 101 characters, 110 is the limit! */
IWL_DEBUG_DEV(dev, level,
"Ch. %d: 0x%x:%s%s%s%s%s%s%s%s%s%s%s%s\n",
chan, 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(UNIFORM),
CHECK_AND_PRINT_I(20MHZ),
CHECK_AND_PRINT_I(40MHZ),
CHECK_AND_PRINT_I(80MHZ),
CHECK_AND_PRINT_I(160MHZ),
CHECK_AND_PRINT_I(DC_HIGH));
#undef CHECK_AND_PRINT_I
}
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->nvm_type == IWL_NVM_EXT)
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;
}
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, bool no_wide_in_5ghz)
{
int ch_idx;
int n_channels = 0;
struct ieee80211_channel *channel;
u16 ch_flags;
int num_of_ch, num_2ghz_channels;
const u8 *nvm_chan;
if (cfg->nvm_type != IWL_NVM_EXT) {
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_EXT;
nvm_chan = &iwl_ext_nvm_channels[0];
num_2ghz_channels = NUM_2GHZ_CHANNELS_EXT;
}
for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) {
bool is_5ghz = (ch_idx >= num_2ghz_channels);
ch_flags = __le16_to_cpup(nvm_ch_flags + ch_idx);
if (is_5ghz && !data->sku_cap_band_52GHz_enable)
continue;
/* workaround to disable wide channels in 5GHz */
if (no_wide_in_5ghz && is_5ghz) {
ch_flags &= ~(NVM_CHANNEL_40MHZ |
NVM_CHANNEL_80MHZ |
NVM_CHANNEL_160MHZ);
}
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_nvm_print_channel_flags(dev, IWL_DL_EEPROM,
nvm_chan[ch_idx], ch_flags);
continue;
}
channel = &data->channels[n_channels];
n_channels++;
channel->hw_value = nvm_chan[ch_idx];
channel->band = is_5ghz ?
NL80211_BAND_5GHZ : NL80211_BAND_2GHZ;
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;
/* 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_nvm_print_channel_flags(dev, IWL_DL_EEPROM,
channel->hw_value, ch_flags);
IWL_DEBUG_EEPROM(dev, "Ch. %d: %ddBm\n",
channel->hw_value, channel->max_power);
}
return n_channels;
}
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;
}
void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg,
struct iwl_nvm_data *data, const __le16 *nvm_ch_flags,
u8 tx_chains, u8 rx_chains, bool lar_supported,
bool no_wide_in_5ghz)
{
int n_channels;
int n_used = 0;
struct ieee80211_supported_band *sband;
n_channels = iwl_init_channel_map(dev, cfg, data, nvm_ch_flags,
lar_supported, no_wide_in_5ghz);
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);
}
IWL_EXPORT_SYMBOL(iwl_init_sbands);
static int iwl_get_sku(const struct iwl_cfg *cfg, const __le16 *nvm_sw,
const __le16 *phy_sku)
{
if (cfg->nvm_type != IWL_NVM_EXT)
return le16_to_cpup(nvm_sw + SKU);
return le32_to_cpup((__le32 *)(phy_sku + SKU_FAMILY_8000));
}
static int iwl_get_nvm_version(const struct iwl_cfg *cfg, const __le16 *nvm_sw)
{
if (cfg->nvm_type != IWL_NVM_EXT)
return le16_to_cpup(nvm_sw + NVM_VERSION);
else
return le32_to_cpup((__le32 *)(nvm_sw +
NVM_VERSION_EXT_NVM));
}
static int iwl_get_radio_cfg(const struct iwl_cfg *cfg, const __le16 *nvm_sw,
const __le16 *phy_sku)
{
if (cfg->nvm_type != IWL_NVM_EXT)
return le16_to_cpup(nvm_sw + RADIO_CFG);
return le32_to_cpup((__le32 *)(phy_sku + RADIO_CFG_FAMILY_EXT_NVM));
}
static int iwl_get_n_hw_addrs(const struct iwl_cfg *cfg, const __le16 *nvm_sw)
{
int n_hw_addr;
if (cfg->nvm_type != IWL_NVM_EXT)
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;
}
static void iwl_set_radio_cfg(const struct iwl_cfg *cfg,
struct iwl_nvm_data *data,
u32 radio_cfg)
{
if (cfg->nvm_type != IWL_NVM_EXT) {
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 = EXT_NVM_RF_CFG_TYPE_MSK(radio_cfg);
data->radio_cfg_step = EXT_NVM_RF_CFG_STEP_MSK(radio_cfg);
data->radio_cfg_dash = EXT_NVM_RF_CFG_DASH_MSK(radio_cfg);
data->radio_cfg_pnum = EXT_NVM_RF_CFG_FLAVOR_MSK(radio_cfg);
data->valid_tx_ant = EXT_NVM_RF_CFG_TX_ANT_MSK(radio_cfg);
data->valid_rx_ant = EXT_NVM_RF_CFG_RX_ANT_MSK(radio_cfg);
}
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];
}
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);
}
IWL_EXPORT_SYMBOL(iwl_set_hw_address_from_csr);
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 __be16 *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_EXT_NVM);
/*
* 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");
}
static int iwl_set_hw_address(struct iwl_trans *trans,
const struct iwl_cfg *cfg,
struct iwl_nvm_data *data, const __be16 *nvm_hw,
const __le16 *mac_override)
{
if (cfg->mac_addr_from_csr) {
iwl_set_hw_address_from_csr(trans, data);
} else if (cfg->nvm_type != IWL_NVM_EXT) {
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;
}
IWL_INFO(trans, "base HW address: %pM\n", data->hw_addr);
return 0;
}
static bool
iwl_nvm_no_wide_in_5ghz(struct device *dev, const struct iwl_cfg *cfg,
const __be16 *nvm_hw)
{
/*
* Workaround a bug in Indonesia SKUs where the regulatory in
* some 7000-family OTPs erroneously allow wide channels in
* 5GHz. To check for Indonesia, we take the SKU value from
* bits 1-4 in the subsystem ID and check if it is either 5 or
* 9. In those cases, we need to force-disable wide channels
* in 5GHz otherwise the FW will throw a sysassert when we try
* to use them.
*/
if (cfg->device_family == IWL_DEVICE_FAMILY_7000) {
/*
* Unlike the other sections in the NVM, the hw
* section uses big-endian.
*/
u16 subsystem_id = be16_to_cpup(nvm_hw + SUBSYSTEM_ID);
u8 sku = (subsystem_id & 0x1e) >> 1;
if (sku == 5 || sku == 9) {
IWL_DEBUG_EEPROM(dev,
"disabling wide channels in 5GHz (0x%0x %d)\n",
subsystem_id, sku);
return true;
}
}
return false;
}
struct iwl_nvm_data *
iwl_parse_nvm_data(struct iwl_trans *trans, const struct iwl_cfg *cfg,
const __be16 *nvm_hw, const __le16 *nvm_sw,
const __le16 *nvm_calib, const __le16 *regulatory,
const __le16 *mac_override, const __le16 *phy_sku,
u8 tx_chains, u8 rx_chains, bool lar_fw_supported)
{
struct device *dev = trans->dev;
struct iwl_nvm_data *data;
bool lar_enabled;
bool no_wide_in_5ghz = iwl_nvm_no_wide_in_5ghz(dev, cfg, nvm_hw);
u32 sku, radio_cfg;
u16 lar_config;
const __le16 *ch_section;
if (cfg->nvm_type != IWL_NVM_EXT)
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_EXT,
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->nvm_type != IWL_NVM_EXT) {
/* Checking for required sections */
if (!nvm_calib) {
IWL_ERR(trans,
"Can't parse empty Calib NVM sections\n");
kfree(data);
return NULL;
}
ch_section = cfg->nvm_type == IWL_NVM_SDP ?
&regulatory[NVM_CHANNELS_SDP] :
&nvm_sw[NVM_CHANNELS];
/* 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;
} else {
u16 lar_offset = data->nvm_version < 0xE39 ?
NVM_LAR_OFFSET_OLD :
NVM_LAR_OFFSET;
lar_config = le16_to_cpup(regulatory + lar_offset);
data->lar_enabled = !!(lar_config &
NVM_LAR_ENABLED);
lar_enabled = data->lar_enabled;
ch_section = &regulatory[NVM_CHANNELS_EXTENDED];
}
/* 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, no_wide_in_5ghz);
data->calib_version = 255;
return data;
}
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->nvm_type == IWL_NVM_EXT)
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;
}
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;
u32 reg_rule_flags, prev_reg_rule_flags = 0;
const u8 *nvm_chan = cfg->nvm_type == IWL_NVM_EXT ?
iwl_ext_nvm_channels : 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->nvm_type == IWL_NVM_EXT ?
IWL_NUM_CHANNELS_EXT : 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_nvm_print_channel_flags(dev, IWL_DL_LAR,
nvm_chan[ch_idx], ch_flags);
continue;
}
reg_rule_flags = iwl_nvm_get_regdom_bw_flags(nvm_chan, ch_idx,
ch_flags, cfg);
/* we can't continue the same rule */
if (ch_idx == 0 || prev_reg_rule_flags != reg_rule_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 = reg_rule_flags;
/* rely on auto-calculation to merge BW of contiguous chans */
rule->flags |= NL80211_RRF_AUTO_BW;
rule->freq_range.max_bandwidth_khz = 0;
prev_center_freq = center_freq;
prev_reg_rule_flags = reg_rule_flags;
iwl_nvm_print_channel_flags(dev, IWL_DL_LAR,
nvm_chan[ch_idx], ch_flags);
}
regd->n_reg_rules = valid_rules;
/* set alpha2 from FW. */
regd->alpha2[0] = fw_mcc >> 8;
regd->alpha2[1] = fw_mcc & 0xff;
return regd;
}
IWL_EXPORT_SYMBOL(iwl_parse_nvm_mcc_info);