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authorLorenzo Bianconi <lorenzo.bianconi@redhat.com>2018-11-06 19:59:46 +0300
committerFelix Fietkau <nbd@nbd.name>2018-11-30 14:29:27 +0300
commit04289783cec4cf942a9d7498624bde5287806399 (patch)
treed7ede7aaff2da5367cd53f8a61077df28d65578e /drivers/net/wireless/mediatek
parent4f833fadc99cb19cd1bf74134e199dd4b1fad34c (diff)
downloadlinux-04289783cec4cf942a9d7498624bde5287806399.tar.xz
mt76x2u: phy: run phy_channel_calibrate after channel switch
Perform channel calibration after each channel switch and not only after connection establishment since NetworkManager perform multiple frequency scanning if RSSI in lower a given threshold Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek')
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt76x2/mt76x2u.h1
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c5
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt76x2/usb_phy.c18
3 files changed, 15 insertions, 9 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/mt76x2u.h b/drivers/net/wireless/mediatek/mt76/mt76x2/mt76x2u.h
index 833974de5c80..0b0075411b34 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2/mt76x2u.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2/mt76x2u.h
@@ -43,7 +43,6 @@ int mt76x2u_mac_stop(struct mt76x02_dev *dev);
int mt76x2u_phy_set_channel(struct mt76x02_dev *dev,
struct cfg80211_chan_def *chandef);
void mt76x2u_phy_calibrate(struct work_struct *work);
-void mt76x2u_phy_channel_calibrate(struct mt76x02_dev *dev);
void mt76x2u_mcu_complete_urb(struct urb *urb);
int mt76x2u_mcu_init(struct mt76x02_dev *dev);
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c
index c2e0a43082e5..cad99715997e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_main.c
@@ -91,11 +91,6 @@ mt76x2u_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
mutex_lock(&dev->mt76.mutex);
- if (changed & BSS_CHANGED_ASSOC) {
- mt76x2u_phy_channel_calibrate(dev);
- mt76x2_apply_gain_adj(dev);
- }
-
if (changed & BSS_CHANGED_BSSID) {
mt76_wr(dev, MT_MAC_BSSID_DW0,
get_unaligned_le32(info->bssid));
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_phy.c b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_phy.c
index 24e292e895b6..a64268e8db42 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2/usb_phy.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2/usb_phy.c
@@ -18,15 +18,20 @@
#include "eeprom.h"
#include "../mt76x02_phy.h"
-void mt76x2u_phy_channel_calibrate(struct mt76x02_dev *dev)
+static void
+mt76x2u_phy_channel_calibrate(struct mt76x02_dev *dev, bool mac_stopped)
{
struct ieee80211_channel *chan = dev->mt76.chandef.chan;
bool is_5ghz = chan->band == NL80211_BAND_5GHZ;
+ if (dev->cal.channel_cal_done)
+ return;
+
if (mt76x2_channel_silent(dev))
return;
- mt76x2u_mac_stop(dev);
+ if (!mac_stopped)
+ mt76x2u_mac_stop(dev);
if (is_5ghz)
mt76x02_mcu_calibrate(dev, MCU_CAL_LC, 0, false);
@@ -37,7 +42,11 @@ void mt76x2u_phy_channel_calibrate(struct mt76x02_dev *dev)
mt76x02_mcu_calibrate(dev, MCU_CAL_TEMP_SENSOR, 0, false);
mt76x02_mcu_calibrate(dev, MCU_CAL_TX_SHAPING, 0, false);
- mt76x2u_mac_resume(dev);
+ if (!mac_stopped)
+ mt76x2u_mac_resume(dev);
+ mt76x2_apply_gain_adj(dev);
+
+ dev->cal.channel_cal_done = true;
}
void mt76x2u_phy_calibrate(struct work_struct *work)
@@ -45,6 +54,7 @@ void mt76x2u_phy_calibrate(struct work_struct *work)
struct mt76x02_dev *dev;
dev = container_of(work, struct mt76x02_dev, cal_work.work);
+ mt76x2u_phy_channel_calibrate(dev, false);
mt76x2_phy_tssi_compensate(dev, false);
mt76x2_phy_update_channel_gain(dev);
@@ -165,7 +175,9 @@ int mt76x2u_phy_set_channel(struct mt76x02_dev *dev,
if (scan)
return 0;
+ mt76x2u_phy_channel_calibrate(dev, true);
mt76x02_init_agc_gain(dev);
+
if (mt76x2_tssi_enabled(dev)) {
/* init default values for temp compensation */
mt76_rmw_field(dev, MT_TX_ALC_CFG_1, MT_TX_ALC_CFG_1_TEMP_COMP,