From 2daa67588f34542f31caeb3c7f3b21a4e2d75f66 Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Thu, 20 Sep 2018 11:11:58 +0200 Subject: [PATCH] mt76x0: unify lna_gain parsing Unify lna gain parsing with mt76x2 driver using eeprom utility routines available in mt76x02-lib module Signed-off-by: Lorenzo Bianconi Signed-off-by: Felix Fietkau --- .../wireless/mediatek/mt76/mt76x0/debugfs.c | 5 +--- .../wireless/mediatek/mt76/mt76x0/eeprom.c | 26 +++++++------------ .../wireless/mediatek/mt76/mt76x0/eeprom.h | 7 +++-- .../wireless/mediatek/mt76/mt76x0/mt76x0.h | 2 ++ .../net/wireless/mediatek/mt76/mt76x0/phy.c | 24 +++++------------ 5 files changed, 24 insertions(+), 40 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt76x0/debugfs.c index 932c0e41196c..566ed0b61035 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/debugfs.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/debugfs.c @@ -109,10 +109,7 @@ mt76x0_eeprom_param_read(struct seq_file *file, void *data) dev->ee->rssi_offset_5ghz[0], dev->ee->rssi_offset_5ghz[1], dev->ee->rssi_offset_5ghz[2]); seq_printf(file, "Temperature offset: %hhx\n", dev->ee->temp_off); - seq_printf(file, "LNA gain 2Ghz: %hhx\n", dev->ee->lna_gain_2ghz); - seq_printf(file, "LNA gain 5Ghz: %hhx %hhx %hhx\n", - dev->ee->lna_gain_5ghz[0], dev->ee->lna_gain_5ghz[1], - dev->ee->lna_gain_5ghz[2]); + seq_printf(file, "LNA gain: %x\n", dev->caldata.lna_gain); val = mt76x02_eeprom_get(&dev->mt76, MT_EE_NIC_CONF_0); seq_printf(file, "Power Amplifier type %lx\n", diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.c b/drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.c index 5d08a7bb16ce..20a9f8fb20da 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.c @@ -122,25 +122,18 @@ mt76x0_set_rf_freq_off(struct mt76x0_dev *dev, u8 *eeprom) dev->ee->rf_freq_off += comp; } -static void -mt76x0_set_lna_gain(struct mt76x0_dev *dev, u8 *eeprom) +void mt76x0_read_rx_gain(struct mt76x0_dev *dev) { - u8 gain; + struct ieee80211_channel *chan = dev->mt76.chandef.chan; + struct mt76x0_caldata *caldata = &dev->caldata; + s8 lna_5g[3], lna_2g; + u16 rssi_offset; - dev->ee->lna_gain_2ghz = eeprom[MT_EE_LNA_GAIN]; - dev->ee->lna_gain_5ghz[0] = eeprom[MT_EE_LNA_GAIN + 1]; + mt76x02_get_rx_gain(&dev->mt76, chan->band, &rssi_offset, + &lna_2g, lna_5g); + caldata->lna_gain = mt76x02_get_lna_gain(&dev->mt76, &lna_2g, + lna_5g, chan); - gain = eeprom[MT_EE_LNA_GAIN_5GHZ_1]; - if (gain == 0xff || gain == 0) - dev->ee->lna_gain_5ghz[1] = dev->ee->lna_gain_5ghz[0]; - else - dev->ee->lna_gain_5ghz[1] = gain; - - gain = eeprom[MT_EE_LNA_GAIN_5GHZ_2]; - if (gain == 0xff || gain == 0) - dev->ee->lna_gain_5ghz[2] = dev->ee->lna_gain_5ghz[0]; - else - dev->ee->lna_gain_5ghz[2] = gain; } static void @@ -318,7 +311,6 @@ mt76x0_eeprom_init(struct mt76x0_dev *dev) mt76x0_set_chip_cap(dev, eeprom); mt76x0_set_rf_freq_off(dev, eeprom); mt76x0_set_temp_offset(dev, eeprom); - mt76x0_set_lna_gain(dev, eeprom); mt76x0_set_rssi_offset(dev, eeprom); dev->chainmask = 0x0101; diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.h b/drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.h index dbfcbfa71291..e62c61d91505 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/eeprom.h @@ -28,13 +28,15 @@ struct reg_channel_bounds { u8 num; }; +struct mt76x0_caldata { + s8 lna_gain; +}; + struct mt76x0_eeprom_params { u8 rf_freq_off; s16 temp_off; s8 rssi_offset_2ghz[2]; s8 rssi_offset_5ghz[3]; - s8 lna_gain_2ghz; - s8 lna_gain_5ghz[3]; /* TX_PWR_CFG_* values from EEPROM for 20 and 40 Mhz bandwidths. */ u32 tx_pwr_cfg_2g[5][2]; @@ -44,6 +46,7 @@ struct mt76x0_eeprom_params { }; int mt76x0_eeprom_init(struct mt76x0_dev *dev); +void mt76x0_read_rx_gain(struct mt76x0_dev *dev); static inline u32 s6_validate(u32 reg) { diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h b/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h index 6aaa9a5b51db..99d48fa96fd9 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h @@ -28,6 +28,7 @@ #include "../mt76.h" #include "../mt76x02_regs.h" #include "../mt76x02_mac.h" +#include "eeprom.h" #define MT_CALIBRATE_INTERVAL (4 * HZ) @@ -89,6 +90,7 @@ struct mt76x0_dev { const u16 *beacon_offsets; struct mt76x0_eeprom_params *ee; + struct mt76x0_caldata caldata; struct mutex reg_atomic_mutex; struct mutex hw_atomic_mutex; diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c b/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c index ba0e68b33ae7..08041ea70a1c 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c @@ -228,18 +228,17 @@ mt76x0_bbp_set_ctrlch(struct mt76x0_dev *dev, enum nl80211_chan_width width, int mt76x0_phy_get_rssi(struct mt76x0_dev *dev, struct mt76x02_rxwi *rxwi) { - s8 lna_gain, rssi_offset; + struct mt76x0_caldata *caldata = &dev->caldata; + s8 rssi_offset; int val; if (dev->mt76.chandef.chan->band == NL80211_BAND_2GHZ) { - lna_gain = dev->ee->lna_gain_2ghz; rssi_offset = dev->ee->rssi_offset_2ghz[0]; } else { - lna_gain = dev->ee->lna_gain_5ghz[0]; rssi_offset = dev->ee->rssi_offset_5ghz[0]; } - val = rxwi->rssi[0] + rssi_offset - lna_gain; + val = rxwi->rssi[0] + rssi_offset - caldata->lna_gain; return val; } @@ -545,20 +544,10 @@ mt76x0_phy_set_chan_bbp_params(struct mt76x0_dev *dev, u8 channel, u16 rf_bw_ban if (pair->reg == MT_BBP(AGC, 8)) { u32 val = pair->value; - u8 gain = FIELD_GET(MT_BBP_AGC_GAIN, val); - - if (channel > 14) { - if (channel < 100) - gain -= dev->ee->lna_gain_5ghz[0]*2; - else if (channel < 137) - gain -= dev->ee->lna_gain_5ghz[1]*2; - else - gain -= dev->ee->lna_gain_5ghz[2]*2; - - } else { - gain -= dev->ee->lna_gain_2ghz*2; - } + u8 gain; + gain = FIELD_GET(MT_BBP_AGC_GAIN, val); + gain -= dev->caldata.lna_gain * 2; val &= ~MT_BBP_AGC_GAIN; val |= FIELD_PREP(MT_BBP_AGC_GAIN, gain); mt76_wr(dev, pair->reg, val); @@ -737,6 +726,7 @@ __mt76x0_phy_set_channel(struct mt76x0_dev *dev, mt76x0_phy_set_band(dev, chandef->chan->band); mt76x0_phy_set_chan_rf_params(dev, channel, rf_bw_band); + mt76x0_read_rx_gain(dev); /* set Japan Tx filter at channel 14 */ val = mt76_rr(dev, MT_BBP(CORE, 1));