402 lines
14 KiB
C
402 lines
14 KiB
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 - 2013 Intel Corporation. All rights reserved.
|
|
*
|
|
* 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 <ilw@linux.intel.com>
|
|
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
|
|
*
|
|
* BSD LICENSE
|
|
*
|
|
* Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved.
|
|
* 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-nvm-parse.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
|
|
};
|
|
|
|
/* 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),
|
|
};
|
|
|
|
/* radio config bits (actual values from NVM definition) */
|
|
#define NVM_RF_CFG_DASH_MSK(x) (x & 0x3) /* bits 0-1 */
|
|
#define NVM_RF_CFG_STEP_MSK(x) ((x >> 2) & 0x3) /* bits 2-3 */
|
|
#define NVM_RF_CFG_TYPE_MSK(x) ((x >> 4) & 0x3) /* bits 4-5 */
|
|
#define NVM_RF_CFG_PNUM_MSK(x) ((x >> 6) & 0x3) /* bits 6-7 */
|
|
#define NVM_RF_CFG_TX_ANT_MSK(x) ((x >> 8) & 0xF) /* bits 8-11 */
|
|
#define NVM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */
|
|
|
|
/*
|
|
* 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
|
|
};
|
|
|
|
#define IWL_NUM_CHANNELS ARRAY_SIZE(iwl_nvm_channels)
|
|
#define NUM_2GHZ_CHANNELS 14
|
|
#define FIRST_2GHZ_HT_MINUS 5
|
|
#define LAST_2GHZ_HT_PLUS 9
|
|
#define LAST_5GHZ_HT 161
|
|
|
|
#define DEFAULT_MAX_TX_POWER 16
|
|
|
|
/* 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_DFS: dynamic freq selection candidate
|
|
* @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_DFS = BIT(7),
|
|
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 int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
|
|
struct iwl_nvm_data *data,
|
|
const __le16 * const nvm_ch_flags)
|
|
{
|
|
int ch_idx;
|
|
int n_channels = 0;
|
|
struct ieee80211_channel *channel;
|
|
u16 ch_flags;
|
|
bool is_5ghz;
|
|
|
|
for (ch_idx = 0; ch_idx < IWL_NUM_CHANNELS; ch_idx++) {
|
|
ch_flags = __le16_to_cpup(nvm_ch_flags + ch_idx);
|
|
if (!(ch_flags & NVM_CHANNEL_VALID)) {
|
|
IWL_DEBUG_EEPROM(dev,
|
|
"Ch. %d Flags %x [%sGHz] - No traffic\n",
|
|
iwl_nvm_channels[ch_idx],
|
|
ch_flags,
|
|
(ch_idx >= NUM_2GHZ_CHANNELS) ?
|
|
"5.2" : "2.4");
|
|
continue;
|
|
}
|
|
|
|
channel = &data->channels[n_channels];
|
|
n_channels++;
|
|
|
|
channel->hw_value = iwl_nvm_channels[ch_idx];
|
|
channel->band = (ch_idx < NUM_2GHZ_CHANNELS) ?
|
|
IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
|
|
channel->center_freq =
|
|
ieee80211_channel_to_frequency(
|
|
channel->hw_value, channel->band);
|
|
|
|
/* TODO: Need to be dependent to the NVM */
|
|
channel->flags = IEEE80211_CHAN_NO_HT40;
|
|
if (ch_idx < NUM_2GHZ_CHANNELS &&
|
|
(ch_flags & NVM_CHANNEL_40MHZ)) {
|
|
if (iwl_nvm_channels[ch_idx] <= LAST_2GHZ_HT_PLUS)
|
|
channel->flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
|
|
if (iwl_nvm_channels[ch_idx] >= FIRST_2GHZ_HT_MINUS)
|
|
channel->flags &= ~IEEE80211_CHAN_NO_HT40MINUS;
|
|
} else if (iwl_nvm_channels[ch_idx] <= LAST_5GHZ_HT &&
|
|
(ch_flags & NVM_CHANNEL_40MHZ)) {
|
|
if ((ch_idx - NUM_2GHZ_CHANNELS) % 2 == 0)
|
|
channel->flags &= ~IEEE80211_CHAN_NO_HT40PLUS;
|
|
else
|
|
channel->flags &= ~IEEE80211_CHAN_NO_HT40MINUS;
|
|
}
|
|
if (!(ch_flags & NVM_CHANNEL_80MHZ))
|
|
channel->flags |= IEEE80211_CHAN_NO_80MHZ;
|
|
if (!(ch_flags & NVM_CHANNEL_160MHZ))
|
|
channel->flags |= IEEE80211_CHAN_NO_160MHZ;
|
|
|
|
if (!(ch_flags & NVM_CHANNEL_IBSS))
|
|
channel->flags |= IEEE80211_CHAN_NO_IBSS;
|
|
|
|
if (!(ch_flags & NVM_CHANNEL_ACTIVE))
|
|
channel->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
|
|
|
|
if (ch_flags & NVM_CHANNEL_RADAR)
|
|
channel->flags |= IEEE80211_CHAN_RADAR;
|
|
|
|
/* 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 = DEFAULT_MAX_TX_POWER;
|
|
is_5ghz = channel->band == IEEE80211_BAND_5GHZ;
|
|
IWL_DEBUG_EEPROM(dev,
|
|
"Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x %ddBm): Ad-Hoc %ssupported\n",
|
|
channel->hw_value,
|
|
is_5ghz ? "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),
|
|
ch_flags,
|
|
channel->max_power,
|
|
((ch_flags & NVM_CHANNEL_IBSS) &&
|
|
!(ch_flags & NVM_CHANNEL_RADAR))
|
|
? "" : "not ");
|
|
}
|
|
|
|
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)
|
|
{
|
|
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 |
|
|
7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
|
|
|
|
if (iwlwifi_mod_params.amsdu_size_8K)
|
|
vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991;
|
|
|
|
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 (data->valid_rx_ant == 1 || cfg->rx_with_siso_diversity) {
|
|
vht_cap->cap |= IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN |
|
|
IEEE80211_VHT_CAP_TX_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;
|
|
}
|
|
|
|
static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg,
|
|
struct iwl_nvm_data *data, const __le16 *nvm_sw,
|
|
bool enable_vht, u8 tx_chains, u8 rx_chains)
|
|
{
|
|
int n_channels = iwl_init_channel_map(dev, cfg, data,
|
|
&nvm_sw[NVM_CHANNELS]);
|
|
int n_used = 0;
|
|
struct ieee80211_supported_band *sband;
|
|
|
|
sband = &data->bands[IEEE80211_BAND_2GHZ];
|
|
sband->band = IEEE80211_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,
|
|
IEEE80211_BAND_2GHZ);
|
|
iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_2GHZ,
|
|
tx_chains, rx_chains);
|
|
|
|
sband = &data->bands[IEEE80211_BAND_5GHZ];
|
|
sband->band = IEEE80211_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,
|
|
IEEE80211_BAND_5GHZ);
|
|
iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_5GHZ,
|
|
tx_chains, rx_chains);
|
|
if (enable_vht)
|
|
iwl_init_vht_hw_capab(cfg, data, &sband->vht_cap);
|
|
|
|
if (n_channels != n_used)
|
|
IWL_ERR_DEV(dev, "NVM: used only %d of %d channels\n",
|
|
n_used, n_channels);
|
|
}
|
|
|
|
struct iwl_nvm_data *
|
|
iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg,
|
|
const __le16 *nvm_hw, const __le16 *nvm_sw,
|
|
const __le16 *nvm_calib, u8 tx_chains, u8 rx_chains)
|
|
{
|
|
struct iwl_nvm_data *data;
|
|
u8 hw_addr[ETH_ALEN];
|
|
u16 radio_cfg, sku;
|
|
|
|
data = kzalloc(sizeof(*data) +
|
|
sizeof(struct ieee80211_channel) * IWL_NUM_CHANNELS,
|
|
GFP_KERNEL);
|
|
if (!data)
|
|
return NULL;
|
|
|
|
data->nvm_version = le16_to_cpup(nvm_sw + NVM_VERSION);
|
|
|
|
radio_cfg = le16_to_cpup(nvm_sw + RADIO_CFG);
|
|
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);
|
|
data->valid_tx_ant = NVM_RF_CFG_TX_ANT_MSK(radio_cfg);
|
|
data->valid_rx_ant = NVM_RF_CFG_RX_ANT_MSK(radio_cfg);
|
|
|
|
sku = le16_to_cpup(nvm_sw + 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;
|
|
|
|
/* check overrides (some devices have wrong NVM) */
|
|
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);
|
|
kfree(data);
|
|
return NULL;
|
|
}
|
|
|
|
data->n_hw_addrs = le16_to_cpup(nvm_sw + N_HW_ADDRS);
|
|
|
|
data->xtal_calib[0] = *(nvm_calib + XTAL_CALIB);
|
|
data->xtal_calib[1] = *(nvm_calib + XTAL_CALIB + 1);
|
|
|
|
/* The byte order is little endian 16 bit, meaning 214365 */
|
|
memcpy(hw_addr, nvm_hw + HW_ADDR, ETH_ALEN);
|
|
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];
|
|
|
|
iwl_init_sbands(dev, cfg, data, nvm_sw, sku & NVM_SKU_CAP_11AC_ENABLE,
|
|
tx_chains, rx_chains);
|
|
|
|
data->calib_version = 255; /* TODO:
|
|
this value will prevent some checks from
|
|
failing, we need to check if this
|
|
field is still needed, and if it does,
|
|
where is it in the NVM*/
|
|
|
|
return data;
|
|
}
|
|
IWL_EXPORT_SYMBOL(iwl_parse_nvm_data);
|