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875 lines
26 KiB
875 lines
26 KiB
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause |
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/* |
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* Copyright (C) 2005-2014, 2018-2020 Intel Corporation |
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* Copyright (C) 2015 Intel Mobile Communications GmbH |
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*/ |
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#include <linux/types.h> |
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#include <linux/slab.h> |
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#include <linux/export.h> |
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#include "iwl-drv.h" |
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#include "iwl-modparams.h" |
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#include "iwl-eeprom-parse.h" |
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|
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/* EEPROM offset definitions */ |
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|
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/* indirect access definitions */ |
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#define ADDRESS_MSK 0x0000FFFF |
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#define INDIRECT_TYPE_MSK 0x000F0000 |
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#define INDIRECT_HOST 0x00010000 |
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#define INDIRECT_GENERAL 0x00020000 |
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#define INDIRECT_REGULATORY 0x00030000 |
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#define INDIRECT_CALIBRATION 0x00040000 |
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#define INDIRECT_PROCESS_ADJST 0x00050000 |
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#define INDIRECT_OTHERS 0x00060000 |
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#define INDIRECT_TXP_LIMIT 0x00070000 |
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#define INDIRECT_TXP_LIMIT_SIZE 0x00080000 |
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#define INDIRECT_ADDRESS 0x00100000 |
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|
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/* corresponding link offsets in EEPROM */ |
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#define EEPROM_LINK_HOST (2*0x64) |
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#define EEPROM_LINK_GENERAL (2*0x65) |
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#define EEPROM_LINK_REGULATORY (2*0x66) |
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#define EEPROM_LINK_CALIBRATION (2*0x67) |
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#define EEPROM_LINK_PROCESS_ADJST (2*0x68) |
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#define EEPROM_LINK_OTHERS (2*0x69) |
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#define EEPROM_LINK_TXP_LIMIT (2*0x6a) |
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#define EEPROM_LINK_TXP_LIMIT_SIZE (2*0x6b) |
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|
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/* General */ |
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#define EEPROM_DEVICE_ID (2*0x08) /* 2 bytes */ |
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#define EEPROM_SUBSYSTEM_ID (2*0x0A) /* 2 bytes */ |
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#define EEPROM_MAC_ADDRESS (2*0x15) /* 6 bytes */ |
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#define EEPROM_BOARD_REVISION (2*0x35) /* 2 bytes */ |
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#define EEPROM_BOARD_PBA_NUMBER (2*0x3B+1) /* 9 bytes */ |
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#define EEPROM_VERSION (2*0x44) /* 2 bytes */ |
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#define EEPROM_SKU_CAP (2*0x45) /* 2 bytes */ |
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#define EEPROM_OEM_MODE (2*0x46) /* 2 bytes */ |
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#define EEPROM_RADIO_CONFIG (2*0x48) /* 2 bytes */ |
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#define EEPROM_NUM_MAC_ADDRESS (2*0x4C) /* 2 bytes */ |
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|
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/* calibration */ |
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struct iwl_eeprom_calib_hdr { |
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u8 version; |
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u8 pa_type; |
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__le16 voltage; |
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} __packed; |
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#define EEPROM_CALIB_ALL (INDIRECT_ADDRESS | INDIRECT_CALIBRATION) |
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#define EEPROM_XTAL ((2*0x128) | EEPROM_CALIB_ALL) |
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/* temperature */ |
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#define EEPROM_KELVIN_TEMPERATURE ((2*0x12A) | EEPROM_CALIB_ALL) |
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#define EEPROM_RAW_TEMPERATURE ((2*0x12B) | EEPROM_CALIB_ALL) |
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/* SKU Capabilities (actual values from EEPROM definition) */ |
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enum eeprom_sku_bits { |
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EEPROM_SKU_CAP_BAND_24GHZ = BIT(4), |
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EEPROM_SKU_CAP_BAND_52GHZ = BIT(5), |
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EEPROM_SKU_CAP_11N_ENABLE = BIT(6), |
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EEPROM_SKU_CAP_AMT_ENABLE = BIT(7), |
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EEPROM_SKU_CAP_IPAN_ENABLE = BIT(8) |
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}; |
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/* radio config bits (actual values from EEPROM definition) */ |
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#define EEPROM_RF_CFG_TYPE_MSK(x) (x & 0x3) /* bits 0-1 */ |
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#define EEPROM_RF_CFG_STEP_MSK(x) ((x >> 2) & 0x3) /* bits 2-3 */ |
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#define EEPROM_RF_CFG_DASH_MSK(x) ((x >> 4) & 0x3) /* bits 4-5 */ |
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#define EEPROM_RF_CFG_PNUM_MSK(x) ((x >> 6) & 0x3) /* bits 6-7 */ |
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#define EEPROM_RF_CFG_TX_ANT_MSK(x) ((x >> 8) & 0xF) /* bits 8-11 */ |
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#define EEPROM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */ |
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/* |
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* EEPROM bands |
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* These are the channel numbers from each band in the order |
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* that they are stored in the EEPROM band information. Note |
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* that EEPROM bands aren't the same as mac80211 bands, and |
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* there are even special "ht40 bands" in the EEPROM. |
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*/ |
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static const u8 iwl_eeprom_band_1[14] = { /* 2.4 GHz */ |
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1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 |
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}; |
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static const u8 iwl_eeprom_band_2[] = { /* 4915-5080MHz */ |
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183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16 |
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}; |
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static const u8 iwl_eeprom_band_3[] = { /* 5170-5320MHz */ |
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34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64 |
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}; |
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static const u8 iwl_eeprom_band_4[] = { /* 5500-5700MHz */ |
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100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140 |
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}; |
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static const u8 iwl_eeprom_band_5[] = { /* 5725-5825MHz */ |
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145, 149, 153, 157, 161, 165 |
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}; |
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static const u8 iwl_eeprom_band_6[] = { /* 2.4 ht40 channel */ |
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1, 2, 3, 4, 5, 6, 7 |
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}; |
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static const u8 iwl_eeprom_band_7[] = { /* 5.2 ht40 channel */ |
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36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157 |
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}; |
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#define IWL_NUM_CHANNELS (ARRAY_SIZE(iwl_eeprom_band_1) + \ |
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ARRAY_SIZE(iwl_eeprom_band_2) + \ |
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ARRAY_SIZE(iwl_eeprom_band_3) + \ |
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ARRAY_SIZE(iwl_eeprom_band_4) + \ |
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ARRAY_SIZE(iwl_eeprom_band_5)) |
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/* rate data (static) */ |
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static struct ieee80211_rate iwl_cfg80211_rates[] = { |
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{ .bitrate = 1 * 10, .hw_value = 0, .hw_value_short = 0, }, |
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{ .bitrate = 2 * 10, .hw_value = 1, .hw_value_short = 1, |
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.flags = IEEE80211_RATE_SHORT_PREAMBLE, }, |
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{ .bitrate = 5.5 * 10, .hw_value = 2, .hw_value_short = 2, |
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.flags = IEEE80211_RATE_SHORT_PREAMBLE, }, |
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{ .bitrate = 11 * 10, .hw_value = 3, .hw_value_short = 3, |
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.flags = IEEE80211_RATE_SHORT_PREAMBLE, }, |
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{ .bitrate = 6 * 10, .hw_value = 4, .hw_value_short = 4, }, |
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{ .bitrate = 9 * 10, .hw_value = 5, .hw_value_short = 5, }, |
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{ .bitrate = 12 * 10, .hw_value = 6, .hw_value_short = 6, }, |
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{ .bitrate = 18 * 10, .hw_value = 7, .hw_value_short = 7, }, |
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{ .bitrate = 24 * 10, .hw_value = 8, .hw_value_short = 8, }, |
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{ .bitrate = 36 * 10, .hw_value = 9, .hw_value_short = 9, }, |
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{ .bitrate = 48 * 10, .hw_value = 10, .hw_value_short = 10, }, |
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{ .bitrate = 54 * 10, .hw_value = 11, .hw_value_short = 11, }, |
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}; |
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#define RATES_24_OFFS 0 |
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#define N_RATES_24 ARRAY_SIZE(iwl_cfg80211_rates) |
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#define RATES_52_OFFS 4 |
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#define N_RATES_52 (N_RATES_24 - RATES_52_OFFS) |
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/* EEPROM reading functions */ |
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static u16 iwl_eeprom_query16(const u8 *eeprom, size_t eeprom_size, int offset) |
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{ |
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if (WARN_ON(offset + sizeof(u16) > eeprom_size)) |
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return 0; |
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return le16_to_cpup((__le16 *)(eeprom + offset)); |
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} |
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static u32 eeprom_indirect_address(const u8 *eeprom, size_t eeprom_size, |
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u32 address) |
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{ |
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u16 offset = 0; |
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if ((address & INDIRECT_ADDRESS) == 0) |
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return address; |
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switch (address & INDIRECT_TYPE_MSK) { |
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case INDIRECT_HOST: |
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offset = iwl_eeprom_query16(eeprom, eeprom_size, |
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EEPROM_LINK_HOST); |
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break; |
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case INDIRECT_GENERAL: |
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offset = iwl_eeprom_query16(eeprom, eeprom_size, |
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EEPROM_LINK_GENERAL); |
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break; |
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case INDIRECT_REGULATORY: |
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offset = iwl_eeprom_query16(eeprom, eeprom_size, |
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EEPROM_LINK_REGULATORY); |
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break; |
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case INDIRECT_TXP_LIMIT: |
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offset = iwl_eeprom_query16(eeprom, eeprom_size, |
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EEPROM_LINK_TXP_LIMIT); |
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break; |
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case INDIRECT_TXP_LIMIT_SIZE: |
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offset = iwl_eeprom_query16(eeprom, eeprom_size, |
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EEPROM_LINK_TXP_LIMIT_SIZE); |
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break; |
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case INDIRECT_CALIBRATION: |
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offset = iwl_eeprom_query16(eeprom, eeprom_size, |
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EEPROM_LINK_CALIBRATION); |
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break; |
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case INDIRECT_PROCESS_ADJST: |
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offset = iwl_eeprom_query16(eeprom, eeprom_size, |
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EEPROM_LINK_PROCESS_ADJST); |
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break; |
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case INDIRECT_OTHERS: |
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offset = iwl_eeprom_query16(eeprom, eeprom_size, |
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EEPROM_LINK_OTHERS); |
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break; |
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default: |
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WARN_ON(1); |
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break; |
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} |
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/* translate the offset from words to byte */ |
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return (address & ADDRESS_MSK) + (offset << 1); |
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} |
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static const u8 *iwl_eeprom_query_addr(const u8 *eeprom, size_t eeprom_size, |
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u32 offset) |
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{ |
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u32 address = eeprom_indirect_address(eeprom, eeprom_size, offset); |
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if (WARN_ON(address >= eeprom_size)) |
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return NULL; |
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return &eeprom[address]; |
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} |
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static int iwl_eeprom_read_calib(const u8 *eeprom, size_t eeprom_size, |
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struct iwl_nvm_data *data) |
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{ |
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struct iwl_eeprom_calib_hdr *hdr; |
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hdr = (void *)iwl_eeprom_query_addr(eeprom, eeprom_size, |
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EEPROM_CALIB_ALL); |
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if (!hdr) |
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return -ENODATA; |
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data->calib_version = hdr->version; |
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data->calib_voltage = hdr->voltage; |
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return 0; |
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} |
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/** |
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* enum iwl_eeprom_channel_flags - channel flags in EEPROM |
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* @EEPROM_CHANNEL_VALID: channel is usable for this SKU/geo |
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* @EEPROM_CHANNEL_IBSS: usable as an IBSS channel |
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* @EEPROM_CHANNEL_ACTIVE: active scanning allowed |
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* @EEPROM_CHANNEL_RADAR: radar detection required |
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* @EEPROM_CHANNEL_WIDE: 20 MHz channel okay (?) |
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* @EEPROM_CHANNEL_DFS: dynamic freq selection candidate |
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*/ |
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enum iwl_eeprom_channel_flags { |
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EEPROM_CHANNEL_VALID = BIT(0), |
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EEPROM_CHANNEL_IBSS = BIT(1), |
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EEPROM_CHANNEL_ACTIVE = BIT(3), |
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EEPROM_CHANNEL_RADAR = BIT(4), |
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EEPROM_CHANNEL_WIDE = BIT(5), |
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EEPROM_CHANNEL_DFS = BIT(7), |
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}; |
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/** |
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* struct iwl_eeprom_channel - EEPROM channel data |
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* @flags: %EEPROM_CHANNEL_* flags |
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* @max_power_avg: max power (in dBm) on this channel, at most 31 dBm |
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*/ |
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struct iwl_eeprom_channel { |
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u8 flags; |
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s8 max_power_avg; |
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} __packed; |
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enum iwl_eeprom_enhanced_txpwr_flags { |
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IWL_EEPROM_ENH_TXP_FL_VALID = BIT(0), |
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IWL_EEPROM_ENH_TXP_FL_BAND_52G = BIT(1), |
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IWL_EEPROM_ENH_TXP_FL_OFDM = BIT(2), |
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IWL_EEPROM_ENH_TXP_FL_40MHZ = BIT(3), |
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IWL_EEPROM_ENH_TXP_FL_HT_AP = BIT(4), |
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IWL_EEPROM_ENH_TXP_FL_RES1 = BIT(5), |
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IWL_EEPROM_ENH_TXP_FL_RES2 = BIT(6), |
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IWL_EEPROM_ENH_TXP_FL_COMMON_TYPE = BIT(7), |
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}; |
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/** |
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* struct iwl_eeprom_enhanced_txpwr |
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* @flags: entry flags |
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* @channel: channel number |
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* @chain_a_max: chain a max power in 1/2 dBm |
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* @chain_b_max: chain b max power in 1/2 dBm |
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* @chain_c_max: chain c max power in 1/2 dBm |
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* @delta_20_in_40: 20-in-40 deltas (hi/lo) |
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* @mimo2_max: mimo2 max power in 1/2 dBm |
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* @mimo3_max: mimo3 max power in 1/2 dBm |
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* |
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* This structure presents the enhanced regulatory tx power limit layout |
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* in an EEPROM image. |
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*/ |
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struct iwl_eeprom_enhanced_txpwr { |
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u8 flags; |
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u8 channel; |
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s8 chain_a_max; |
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s8 chain_b_max; |
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s8 chain_c_max; |
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u8 delta_20_in_40; |
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s8 mimo2_max; |
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s8 mimo3_max; |
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} __packed; |
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static s8 iwl_get_max_txpwr_half_dbm(const struct iwl_nvm_data *data, |
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struct iwl_eeprom_enhanced_txpwr *txp) |
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{ |
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s8 result = 0; /* (.5 dBm) */ |
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/* Take the highest tx power from any valid chains */ |
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if (data->valid_tx_ant & ANT_A && txp->chain_a_max > result) |
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result = txp->chain_a_max; |
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if (data->valid_tx_ant & ANT_B && txp->chain_b_max > result) |
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result = txp->chain_b_max; |
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if (data->valid_tx_ant & ANT_C && txp->chain_c_max > result) |
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result = txp->chain_c_max; |
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if ((data->valid_tx_ant == ANT_AB || |
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data->valid_tx_ant == ANT_BC || |
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data->valid_tx_ant == ANT_AC) && txp->mimo2_max > result) |
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result = txp->mimo2_max; |
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if (data->valid_tx_ant == ANT_ABC && txp->mimo3_max > result) |
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result = txp->mimo3_max; |
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return result; |
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} |
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#define EEPROM_TXP_OFFS (0x00 | INDIRECT_ADDRESS | INDIRECT_TXP_LIMIT) |
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#define EEPROM_TXP_ENTRY_LEN sizeof(struct iwl_eeprom_enhanced_txpwr) |
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#define EEPROM_TXP_SZ_OFFS (0x00 | INDIRECT_ADDRESS | INDIRECT_TXP_LIMIT_SIZE) |
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#define TXP_CHECK_AND_PRINT(x) \ |
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((txp->flags & IWL_EEPROM_ENH_TXP_FL_##x) ? # x " " : "") |
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static void |
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iwl_eeprom_enh_txp_read_element(struct iwl_nvm_data *data, |
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struct iwl_eeprom_enhanced_txpwr *txp, |
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int n_channels, s8 max_txpower_avg) |
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{ |
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int ch_idx; |
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enum nl80211_band band; |
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band = txp->flags & IWL_EEPROM_ENH_TXP_FL_BAND_52G ? |
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NL80211_BAND_5GHZ : NL80211_BAND_2GHZ; |
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for (ch_idx = 0; ch_idx < n_channels; ch_idx++) { |
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struct ieee80211_channel *chan = &data->channels[ch_idx]; |
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/* update matching channel or from common data only */ |
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if (txp->channel != 0 && chan->hw_value != txp->channel) |
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continue; |
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/* update matching band only */ |
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if (band != chan->band) |
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continue; |
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if (chan->max_power < max_txpower_avg && |
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!(txp->flags & IWL_EEPROM_ENH_TXP_FL_40MHZ)) |
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chan->max_power = max_txpower_avg; |
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} |
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} |
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static void iwl_eeprom_enhanced_txpower(struct device *dev, |
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struct iwl_nvm_data *data, |
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const u8 *eeprom, size_t eeprom_size, |
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int n_channels) |
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{ |
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struct iwl_eeprom_enhanced_txpwr *txp_array, *txp; |
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int idx, entries; |
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__le16 *txp_len; |
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s8 max_txp_avg_halfdbm; |
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BUILD_BUG_ON(sizeof(struct iwl_eeprom_enhanced_txpwr) != 8); |
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/* the length is in 16-bit words, but we want entries */ |
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txp_len = (__le16 *)iwl_eeprom_query_addr(eeprom, eeprom_size, |
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EEPROM_TXP_SZ_OFFS); |
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entries = le16_to_cpup(txp_len) * 2 / EEPROM_TXP_ENTRY_LEN; |
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txp_array = (void *)iwl_eeprom_query_addr(eeprom, eeprom_size, |
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EEPROM_TXP_OFFS); |
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for (idx = 0; idx < entries; idx++) { |
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txp = &txp_array[idx]; |
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/* skip invalid entries */ |
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if (!(txp->flags & IWL_EEPROM_ENH_TXP_FL_VALID)) |
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continue; |
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IWL_DEBUG_EEPROM(dev, "%s %d:\t %s%s%s%s%s%s%s%s (0x%02x)\n", |
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(txp->channel && (txp->flags & |
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IWL_EEPROM_ENH_TXP_FL_COMMON_TYPE)) ? |
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"Common " : (txp->channel) ? |
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"Channel" : "Common", |
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(txp->channel), |
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TXP_CHECK_AND_PRINT(VALID), |
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TXP_CHECK_AND_PRINT(BAND_52G), |
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TXP_CHECK_AND_PRINT(OFDM), |
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TXP_CHECK_AND_PRINT(40MHZ), |
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TXP_CHECK_AND_PRINT(HT_AP), |
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TXP_CHECK_AND_PRINT(RES1), |
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TXP_CHECK_AND_PRINT(RES2), |
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TXP_CHECK_AND_PRINT(COMMON_TYPE), |
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txp->flags); |
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IWL_DEBUG_EEPROM(dev, |
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"\t\t chain_A: %d chain_B: %d chain_C: %d\n", |
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txp->chain_a_max, txp->chain_b_max, |
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txp->chain_c_max); |
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IWL_DEBUG_EEPROM(dev, |
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"\t\t MIMO2: %d MIMO3: %d High 20_on_40: 0x%02x Low 20_on_40: 0x%02x\n", |
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txp->mimo2_max, txp->mimo3_max, |
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((txp->delta_20_in_40 & 0xf0) >> 4), |
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(txp->delta_20_in_40 & 0x0f)); |
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max_txp_avg_halfdbm = iwl_get_max_txpwr_half_dbm(data, txp); |
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iwl_eeprom_enh_txp_read_element(data, txp, n_channels, |
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DIV_ROUND_UP(max_txp_avg_halfdbm, 2)); |
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if (max_txp_avg_halfdbm > data->max_tx_pwr_half_dbm) |
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data->max_tx_pwr_half_dbm = max_txp_avg_halfdbm; |
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} |
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} |
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static void iwl_init_band_reference(const struct iwl_cfg *cfg, |
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const u8 *eeprom, size_t eeprom_size, |
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int eeprom_band, int *eeprom_ch_count, |
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const struct iwl_eeprom_channel **ch_info, |
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const u8 **eeprom_ch_array) |
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{ |
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u32 offset = cfg->eeprom_params->regulatory_bands[eeprom_band - 1]; |
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offset |= INDIRECT_ADDRESS | INDIRECT_REGULATORY; |
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*ch_info = (void *)iwl_eeprom_query_addr(eeprom, eeprom_size, offset); |
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|
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switch (eeprom_band) { |
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case 1: /* 2.4GHz band */ |
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*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_1); |
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*eeprom_ch_array = iwl_eeprom_band_1; |
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break; |
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case 2: /* 4.9GHz band */ |
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*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_2); |
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*eeprom_ch_array = iwl_eeprom_band_2; |
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break; |
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case 3: /* 5.2GHz band */ |
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*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_3); |
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*eeprom_ch_array = iwl_eeprom_band_3; |
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break; |
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case 4: /* 5.5GHz band */ |
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*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_4); |
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*eeprom_ch_array = iwl_eeprom_band_4; |
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break; |
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case 5: /* 5.7GHz band */ |
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*eeprom_ch_count = ARRAY_SIZE(iwl_eeprom_band_5); |
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*eeprom_ch_array = iwl_eeprom_band_5; |
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break; |
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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 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; |
|
} |
|
|
|
#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; |
|
} |
|
|
|
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; |
|
} |
|
|
|
#define MAX_BIT_RATE_40_MHZ 150 /* Mbps */ |
|
#define MAX_BIT_RATE_20_MHZ 72 /* Mbps */ |
|
|
|
void iwl_init_ht_hw_capab(struct iwl_trans *trans, |
|
struct iwl_nvm_data *data, |
|
struct ieee80211_sta_ht_cap *ht_info, |
|
enum nl80211_band band, |
|
u8 tx_chains, u8 rx_chains) |
|
{ |
|
const struct iwl_cfg *cfg = trans->cfg; |
|
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) || |
|
(iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_ALL) || |
|
!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 (trans->trans_cfg->mq_rx_supported || |
|
iwlwifi_mod_params.amsdu_size >= IWL_AMSDU_8K) |
|
ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU; |
|
|
|
ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; |
|
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 iwl_trans *trans, const struct iwl_cfg *cfg, |
|
struct iwl_nvm_data *data, |
|
const u8 *eeprom, size_t eeprom_size) |
|
{ |
|
struct device *dev = trans->dev; |
|
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(trans, 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(trans, 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); |
|
} |
|
|
|
/* EEPROM data functions */ |
|
|
|
struct iwl_nvm_data * |
|
iwl_parse_eeprom_data(struct iwl_trans *trans, const struct iwl_cfg *cfg, |
|
const u8 *eeprom, size_t eeprom_size) |
|
{ |
|
struct iwl_nvm_data *data; |
|
struct device *dev = trans->dev; |
|
const void *tmp; |
|
u16 radio_cfg, sku; |
|
|
|
if (WARN_ON(!cfg || !cfg->eeprom_params)) |
|
return NULL; |
|
|
|
data = kzalloc(struct_size(data, channels, 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(trans, cfg, data, eeprom, eeprom_size); |
|
|
|
return data; |
|
err_free: |
|
kfree(data); |
|
return NULL; |
|
} |
|
IWL_EXPORT_SYMBOL(iwl_parse_eeprom_data);
|
|
|