/****************************************************************************** * * 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 * 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 #include #include #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), }; /* 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 /* 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 (?) */ 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), }; #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_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 */ /* TODO: read the real value from the NVM */ channel->max_power = 0; 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_sbands(struct device *dev, const struct iwl_cfg *cfg, struct iwl_nvm_data *data, const __le16 *nvm_sw) { 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); 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); 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) { 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); 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; } EXPORT_SYMBOL_GPL(iwl_parse_nvm_data);