mirror of
https://github.com/outbackdingo/mt76.git
synced 2026-10-24 13:26:48 +00:00
Zhi-Jun YouandFelix Fietkau
0d6eaa4174
In vendor driver, size of group cal and dpd cal for mt7981 includes 6G
although the chip doesn't support it.
mt76 doesn't take this into account which results in reading from the
incorrect offset.
For devices with precal, this would lead to lower bitrate.
Fix this by aligning groupcal size with vendor driver and switch to
freq_list_v2 in mt7915_dpd_freq_idx in order to get the correct offset.
Below are iwinfo of the test device with two clients connected
(iPhone 16, Intel AX210).
Before :
Mode: Master Channel: 36 (5.180 GHz) HT Mode: HE80
Center Channel 1: 42 2: unknown
Tx-Power: 23 dBm Link Quality: 43/70
Signal: -67 dBm Noise: -92 dBm
Bit Rate: 612.4 MBit/s
Encryption: WPA3 SAE (CCMP)
Type: nl80211 HW Mode(s): 802.11ac/ax/n
Hardware: embedded [MediaTek MT7981]
After:
Mode: Master Channel: 36 (5.180 GHz) HT Mode: HE80
Center Channel 1: 42 2: unknown
Tx-Power: 23 dBm Link Quality: 43/70
Signal: -67 dBm Noise: -92 dBm
Bit Rate: 900.6 MBit/s
Encryption: WPA3 SAE (CCMP)
Type: nl80211 HW Mode(s): 802.11ac/ax/n
Hardware: embedded [MediaTek MT7981]
Tested-on: mt7981 20240823
Fixes: 19a954edec63 ("wifi: mt76: mt7915: add mt7986, mt7916 and mt7981 pre-calibration")
Signed-off-by: Zhi-Jun You <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Felix Fietkau <[email protected]>
204 lines
4.7 KiB
C
204 lines
4.7 KiB
C
/* SPDX-License-Identifier: ISC */
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/* Copyright (C) 2020 MediaTek Inc. */
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#ifndef __MT7915_EEPROM_H
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#define __MT7915_EEPROM_H
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#include "mt7915.h"
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struct cal_data {
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u8 count;
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u16 offset[60];
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};
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enum mt7915_eeprom_field {
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MT_EE_CHIP_ID = 0x000,
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MT_EE_VERSION = 0x002,
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MT_EE_MAC_ADDR = 0x004,
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MT_EE_MAC_ADDR2 = 0x00a,
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MT_EE_DDIE_FT_VERSION = 0x050,
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MT_EE_DO_PRE_CAL = 0x062,
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MT_EE_WIFI_CONF = 0x190,
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MT_EE_DO_PRE_CAL_V2 = 0x19a,
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MT_EE_RATE_DELTA_2G = 0x252,
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MT_EE_RATE_DELTA_5G = 0x29d,
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MT_EE_TX0_POWER_2G = 0x2fc,
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MT_EE_TX0_POWER_5G = 0x34b,
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MT_EE_RATE_DELTA_2G_V2 = 0x7d3,
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MT_EE_RATE_DELTA_5G_V2 = 0x81e,
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MT_EE_RATE_DELTA_6G_V2 = 0x884, /* 6g fields only appear in eeprom v2 */
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MT_EE_TX0_POWER_2G_V2 = 0x441,
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MT_EE_TX0_POWER_5G_V2 = 0x445,
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MT_EE_TX0_POWER_6G_V2 = 0x465,
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MT_EE_ADIE_FT_VERSION = 0x9a0,
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__MT_EE_MAX = 0xe00,
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__MT_EE_MAX_V2 = 0x1000,
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/* 0xe10 ~ 0x5780 used to save group cal data */
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MT_EE_PRECAL = 0xe10,
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MT_EE_PRECAL_V2 = 0x1010
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};
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#define MT_EE_WIFI_CAL_GROUP BIT(0)
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#define MT_EE_WIFI_CAL_DPD_2G BIT(2)
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#define MT_EE_WIFI_CAL_DPD_5G BIT(1)
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#define MT_EE_WIFI_CAL_DPD_6G BIT(3)
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#define MT_EE_WIFI_CAL_DPD GENMASK(3, 1)
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#define MT_EE_CAL_UNIT 1024
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#define MT_EE_CAL_GROUP_SIZE_7915 (49 * MT_EE_CAL_UNIT + 16)
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#define MT_EE_CAL_GROUP_SIZE_7916 (54 * MT_EE_CAL_UNIT + 16)
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#define MT_EE_CAL_GROUP_SIZE_7975 (54 * MT_EE_CAL_UNIT + 16)
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#define MT_EE_CAL_GROUP_SIZE_7976 (94 * MT_EE_CAL_UNIT + 16)
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#define MT_EE_CAL_GROUP_SIZE_7916_6G (94 * MT_EE_CAL_UNIT + 16)
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#define MT_EE_CAL_GROUP_SIZE_7981 (144 * MT_EE_CAL_UNIT + 16)
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#define MT_EE_CAL_DPD_SIZE_V1 (54 * MT_EE_CAL_UNIT)
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#define MT_EE_CAL_DPD_SIZE_V2 (300 * MT_EE_CAL_UNIT)
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#define MT_EE_WIFI_CONF0_TX_PATH GENMASK(2, 0)
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#define MT_EE_WIFI_CONF0_RX_PATH GENMASK(5, 3)
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#define MT_EE_WIFI_CONF0_BAND_SEL GENMASK(7, 6)
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#define MT_EE_WIFI_CONF1_BAND_SEL GENMASK(7, 6)
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#define MT_EE_WIFI_CONF_STREAM_NUM GENMASK(7, 5)
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#define MT_EE_WIFI_CONF3_TX_PATH_B0 GENMASK(1, 0)
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#define MT_EE_WIFI_CONF3_TX_PATH_B1 GENMASK(5, 4)
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#define MT_EE_WIFI_CONF7_TSSI0_2G BIT(0)
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#define MT_EE_WIFI_CONF7_TSSI0_5G BIT(2)
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#define MT_EE_WIFI_CONF7_TSSI1_5G BIT(4)
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#define MT_EE_RATE_DELTA_MASK GENMASK(5, 0)
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#define MT_EE_RATE_DELTA_SIGN BIT(6)
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#define MT_EE_RATE_DELTA_EN BIT(7)
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enum mt7915_adie_sku {
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MT7976_ONE_ADIE_DBDC = 0x7,
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MT7975_ONE_ADIE = 0x8,
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MT7976_ONE_ADIE = 0xa,
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MT7975_DUAL_ADIE = 0xd,
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MT7976_DUAL_ADIE = 0xf,
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};
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enum mt7915_eeprom_band {
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MT_EE_BAND_SEL_DEFAULT,
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MT_EE_BAND_SEL_5GHZ,
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MT_EE_BAND_SEL_2GHZ,
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MT_EE_BAND_SEL_DUAL,
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};
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enum {
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MT_EE_V2_BAND_SEL_2GHZ,
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MT_EE_V2_BAND_SEL_5GHZ,
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MT_EE_V2_BAND_SEL_6GHZ,
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MT_EE_V2_BAND_SEL_5GHZ_6GHZ,
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};
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enum mt7915_sku_rate_group {
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SKU_CCK,
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SKU_OFDM,
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SKU_HT_BW20,
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SKU_HT_BW40,
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SKU_VHT_BW20,
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SKU_VHT_BW40,
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SKU_VHT_BW80,
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SKU_VHT_BW160,
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SKU_HE_RU26,
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SKU_HE_RU52,
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SKU_HE_RU106,
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SKU_HE_RU242,
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SKU_HE_RU484,
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SKU_HE_RU996,
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SKU_HE_RU2x996,
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MAX_SKU_RATE_GROUP_NUM,
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};
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static inline int
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mt7915_get_channel_group_5g(int channel, bool is_7976)
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{
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if (is_7976) {
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if (channel <= 64)
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return 0;
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if (channel <= 96)
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return 1;
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if (channel <= 128)
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return 2;
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if (channel <= 144)
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return 3;
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return 4;
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}
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if (channel >= 184 && channel <= 196)
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return 0;
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if (channel <= 48)
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return 1;
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if (channel <= 64)
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return 2;
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if (channel <= 96)
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return 3;
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if (channel <= 112)
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return 4;
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if (channel <= 128)
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return 5;
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if (channel <= 144)
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return 6;
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return 7;
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}
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static inline int
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mt7915_get_channel_group_6g(int channel)
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{
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if (channel <= 29)
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return 0;
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return DIV_ROUND_UP(channel - 29, 32);
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}
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static inline bool
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mt7915_tssi_enabled(struct mt7915_dev *dev, enum nl80211_band band)
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{
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u8 *eep = dev->mt76.eeprom.data;
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u8 offs = is_mt7981(&dev->mt76) ? 8 : 7;
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u8 val = eep[MT_EE_WIFI_CONF + offs];
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if (band == NL80211_BAND_2GHZ)
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return val & MT_EE_WIFI_CONF7_TSSI0_2G;
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if (dev->dbdc_support)
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return val & MT_EE_WIFI_CONF7_TSSI1_5G;
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else
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return val & MT_EE_WIFI_CONF7_TSSI0_5G;
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}
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static inline u32
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mt7915_get_cal_group_size(struct mt7915_dev *dev)
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{
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u8 *eep = dev->mt76.eeprom.data;
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u32 val;
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if (is_mt7915(&dev->mt76)) {
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return MT_EE_CAL_GROUP_SIZE_7915;
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} else if (is_mt7916(&dev->mt76)) {
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val = eep[MT_EE_WIFI_CONF + 1];
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val = FIELD_GET(MT_EE_WIFI_CONF0_BAND_SEL, val);
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return (val == MT_EE_V2_BAND_SEL_6GHZ) ? MT_EE_CAL_GROUP_SIZE_7916_6G :
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MT_EE_CAL_GROUP_SIZE_7916;
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} else if (is_mt7981(&dev->mt76)) {
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return MT_EE_CAL_GROUP_SIZE_7981;
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} else if (mt7915_check_adie(dev, false)) {
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return MT_EE_CAL_GROUP_SIZE_7976;
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} else {
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return MT_EE_CAL_GROUP_SIZE_7975;
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}
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}
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static inline u32
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mt7915_get_cal_dpd_size(struct mt7915_dev *dev)
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{
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if (is_mt7915(&dev->mt76))
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return MT_EE_CAL_DPD_SIZE_V1;
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else
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return MT_EE_CAL_DPD_SIZE_V2;
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}
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extern const u8 mt7915_sku_group_len[MAX_SKU_RATE_GROUP_NUM];
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#endif
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