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author | Lorenzo Bianconi | 2018-10-12 12:16:20 +0200 |
---|---|---|
committer | Felix Fietkau | 2018-10-13 17:39:44 +0200 |
commit | 9aec146d0f6b532446b81f3fb3f8b7545b436dc5 (patch) | |
tree | a75318a18e22df7005d31b6146c147dd53397444 /drivers/net/wireless/mediatek/mt76/mt76x0 | |
parent | mt76x0: pci: rename mt76x0_phy_calibrate (diff) | |
download | kernel-qcow2-linux-9aec146d0f6b532446b81f3fb3f8b7545b436dc5.tar.gz kernel-qcow2-linux-9aec146d0f6b532446b81f3fb3f8b7545b436dc5.tar.xz kernel-qcow2-linux-9aec146d0f6b532446b81f3fb3f8b7545b436dc5.zip |
mt76x0: pci: introduce mt76x0_phy_calirate routine
Add mt76x0_phy_calirate routine in order to perform
phy calibration for mt76x0e devices.
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x0')
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x0/mcu.h | 3 | ||||
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h | 1 | ||||
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x0/pci.c | 1 | ||||
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x0/phy.c | 53 |
4 files changed, 55 insertions, 3 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/mcu.h b/drivers/net/wireless/mediatek/mt76/mt76x0/mcu.h index b66e70f6cd89..3b34e1d2769f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/mcu.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/mcu.h @@ -39,6 +39,9 @@ enum mcu_calibrate { MCU_CAL_TXDCOC, MCU_CAL_RX_GROUP_DELAY, MCU_CAL_TX_GROUP_DELAY, + MCU_CAL_VCO, + MCU_CAL_NO_SIGNAL = 0xfe, + MCU_CAL_FULL = 0xff, }; int mt76x0e_mcu_init(struct mt76x02_dev *dev); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h b/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h index 1bff2be45a13..6717d83e0ff6 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h @@ -72,6 +72,7 @@ int mt76x0_phy_set_channel(struct mt76x02_dev *dev, struct cfg80211_chan_def *chandef); void mt76x0_phy_recalibrate_after_assoc(struct mt76x02_dev *dev); void mt76x0_phy_set_txpower(struct mt76x02_dev *dev); +void mt76x0_phy_calibrate(struct mt76x02_dev *dev, bool power_on); /* MAC */ void mt76x0_mac_work(struct work_struct *work); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c b/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c index fd2dc7efeea3..522c86059bcb 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/pci.c @@ -28,6 +28,7 @@ static int mt76x0e_start(struct ieee80211_hw *hw) mutex_lock(&dev->mt76.mutex); mt76x02_mac_start(dev); + mt76x0_phy_calibrate(dev, true); ieee80211_queue_delayed_work(dev->mt76.hw, &dev->mac_work, MT_CALIBRATE_INTERVAL); ieee80211_queue_delayed_work(dev->mt76.hw, &dev->cal_work, diff --git a/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c b/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c index 9a8e1fcee26b..6bd5aa67d400 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x0/phy.c @@ -581,6 +581,48 @@ void mt76x0_phy_set_txpower(struct mt76x02_dev *dev) mt76x02_phy_set_txpower(dev, info[0], info[1]); } +void mt76x0_phy_calibrate(struct mt76x02_dev *dev, bool power_on) +{ + struct ieee80211_channel *chan = dev->mt76.chandef.chan; + u32 val, tx_alc, reg_val; + + if (power_on) { + mt76x02_mcu_calibrate(dev, MCU_CAL_R, 0, false); + mt76x02_mcu_calibrate(dev, MCU_CAL_VCO, chan->hw_value, + false); + usleep_range(10, 20); + /* XXX: tssi */ + } + + tx_alc = mt76_rr(dev, MT_TX_ALC_CFG_0); + mt76_wr(dev, MT_TX_ALC_CFG_0, 0); + usleep_range(500, 700); + + reg_val = mt76_rr(dev, MT_BBP(IBI, 9)); + mt76_wr(dev, MT_BBP(IBI, 9), 0xffffff7e); + + if (chan->band == NL80211_BAND_5GHZ) { + if (chan->hw_value < 100) + val = 0x701; + else if (chan->hw_value < 140) + val = 0x801; + else + val = 0x901; + } else { + val = 0x600; + } + + mt76x02_mcu_calibrate(dev, MCU_CAL_FULL, val, false); + msleep(350); + mt76x02_mcu_calibrate(dev, MCU_CAL_LC, 1, false); + usleep_range(15000, 20000); + + mt76_wr(dev, MT_BBP(IBI, 9), reg_val); + mt76_wr(dev, MT_TX_ALC_CFG_0, tx_alc); + mt76x02_mcu_calibrate(dev, MCU_CAL_RXDCOC, 1, false); +} +EXPORT_SYMBOL_GPL(mt76x0_phy_calibrate); + int mt76x0_phy_set_channel(struct mt76x02_dev *dev, struct cfg80211_chan_def *chandef) { @@ -671,9 +713,14 @@ int mt76x0_phy_set_channel(struct mt76x02_dev *dev, /* Vendor driver don't do it */ /* mt76x0_phy_set_tx_power(dev, channel, rf_bw_band); */ - mt76x0_vco_cal(dev, channel); - if (scan) - mt76x02_mcu_calibrate(dev, MCU_CAL_RXDCOC, 1, false); + if (mt76_is_usb(dev)) { + mt76x0_vco_cal(dev, channel); + if (scan) + mt76x02_mcu_calibrate(dev, MCU_CAL_RXDCOC, 1, + false); + } else { + mt76x0_phy_calibrate(dev, false); + } mt76x0_phy_set_txpower(dev); |