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author | Kalle Valo <kvalo@codeaurora.org> | 2015-11-17 19:57:38 +0100 |
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committer | Kalle Valo <kvalo@codeaurora.org> | 2015-11-18 13:28:30 +0100 |
commit | e705c12146aa9c69ca498d4ebb83ba7138f9b41f (patch) | |
tree | b55d4eb7a83c2ec117f460684eb71c89eee6a709 /drivers/net/wireless/iwlwifi/iwl-eeprom-parse.c | |
parent | iwlegacy: move under intel directory (diff) | |
download | linux-e705c12146aa9c69ca498d4ebb83ba7138f9b41f.tar.xz linux-e705c12146aa9c69ca498d4ebb83ba7138f9b41f.zip |
iwlwifi: move under intel vendor directory
Part of reorganising wireless drivers directory and Kconfig.
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-eeprom-parse.c')
-rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-eeprom-parse.c | 947 |
1 files changed, 0 insertions, 947 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.c b/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.c deleted file mode 100644 index acc3d186c5c1..000000000000 --- a/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.c +++ /dev/null @@ -1,947 +0,0 @@ -/****************************************************************************** - * - * 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 <ilw@linux.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)); -} - -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); -} - -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]; -} - -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; -} - -/** - * 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; -} - -#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 ieee80211_band band; - - band = txp->flags & IWL_EEPROM_ENH_TXP_FL_BAND_52G ? - IEEE80211_BAND_5GHZ : IEEE80211_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; - } -} - -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: 0x%02x chain_B: 0X%02x chain_C: 0X%02x\n", - txp->chain_a_max, txp->chain_b_max, - txp->chain_c_max); - IWL_DEBUG_EEPROM(dev, - "\t\t MIMO2: 0x%02x MIMO3: 0x%02x 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; - } -} - -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); - } -} - -#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 ieee80211_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 == IEEE80211_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; -} - -#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) ? IEEE80211_BAND_2GHZ - : IEEE80211_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 ieee80211_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) ? IEEE80211_BAND_2GHZ - : IEEE80211_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; -} - -int iwl_init_sband_channels(struct iwl_nvm_data *data, - struct ieee80211_supported_band *sband, - int n_channels, enum ieee80211_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; -} - -#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 ieee80211_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 (iwlwifi_mod_params.amsdu_size_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); - } -} - -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[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, - data->valid_tx_ant, data->valid_rx_ant); - - 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, - 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); -} - -/* 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; -} -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; -} -IWL_EXPORT_SYMBOL(iwl_nvm_check_version); |