mt76: move mt76x02_set_tx_ackto in mt76x02-lib module

Move mt76x02_set_tx_ackto and mt76x02_set_coverage_class routines
in mt76x02-lib module in order to be reused by mt76x0 driver.
This is a preliminary patch to unify drv_bss_info_changed mac80211
callback between mt76x0 and mt76x2 drivers
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76x0/main.c

@@ -117,8 +117,8 @@ void mt76x0_bss_info_changed(struct ieee80211_hw *hw,
 	if (changed & BSS_CHANGED_ERP_SLOT) {
 		int slottime = info->use_short_slot ? 9 : 20;
 
-		mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG,
-			       MT_BKOFF_SLOT_CFG_SLOTTIME, slottime);
+		dev->slottime = slottime;
+		mt76x02_set_tx_ackto(dev);
 	}
 
 	mutex_unlock(&dev->mt76.mutex);

drivers/net/wireless/mediatek/mt76/mt76x0/pci.c

@@ -104,6 +104,7 @@ static const struct ieee80211_ops mt76x0e_ops = {
 	.flush = mt76x0e_flush,
 	.set_tim = mt76x0e_set_tim,
 	.release_buffered_frames = mt76_release_buffered_frames,
+	.set_coverage_class = mt76x02_set_coverage_class,
 };
 
 static int mt76x0e_register_device(struct mt76x02_dev *dev)

drivers/net/wireless/mediatek/mt76/mt76x02.h

@@ -133,6 +133,9 @@ s8 mt76x02_tx_get_max_txpwr_adj(struct mt76x02_dev *dev,
 s8 mt76x02_tx_get_txpwr_adj(struct mt76x02_dev *dev, s8 txpwr,
 			    s8 max_txpwr_adj);
 void mt76x02_tx_set_txpwr_auto(struct mt76x02_dev *dev, s8 txpwr);
+void mt76x02_set_tx_ackto(struct mt76x02_dev *dev);
+void mt76x02_set_coverage_class(struct ieee80211_hw *hw,
+				s16 coverage_class);
 int mt76x02_insert_hdr_pad(struct sk_buff *skb);
 void mt76x02_remove_hdr_pad(struct sk_buff *skb, int len);
 void mt76x02_tx_complete(struct mt76_dev *dev, struct sk_buff *skb);

drivers/net/wireless/mediatek/mt76/mt76x02_util.c

@@ -438,6 +438,36 @@ int mt76x02_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 }
 EXPORT_SYMBOL_GPL(mt76x02_conf_tx);
 
+void mt76x02_set_tx_ackto(struct mt76x02_dev *dev)
+{
+	u8 ackto, sifs, slottime = dev->slottime;
+
+	/* As defined by IEEE 802.11-2007 17.3.8.6 */
+	slottime += 3 * dev->coverage_class;
+	mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG,
+		       MT_BKOFF_SLOT_CFG_SLOTTIME, slottime);
+
+	sifs = mt76_get_field(dev, MT_XIFS_TIME_CFG,
+			      MT_XIFS_TIME_CFG_OFDM_SIFS);
+
+	ackto = slottime + sifs;
+	mt76_rmw_field(dev, MT_TX_TIMEOUT_CFG,
+		       MT_TX_TIMEOUT_CFG_ACKTO, ackto);
+}
+EXPORT_SYMBOL_GPL(mt76x02_set_tx_ackto);
+
+void mt76x02_set_coverage_class(struct ieee80211_hw *hw,
+				s16 coverage_class)
+{
+	struct mt76x02_dev *dev = hw->priv;
+
+	mutex_lock(&dev->mt76.mutex);
+	dev->coverage_class = coverage_class;
+	mt76x02_set_tx_ackto(dev);
+	mutex_unlock(&dev->mt76.mutex);
+}
+EXPORT_SYMBOL_GPL(mt76x02_set_coverage_class);
+
 void mt76x02_sta_rate_tbl_update(struct ieee80211_hw *hw,
 				struct ieee80211_vif *vif,
 				struct ieee80211_sta *sta)

drivers/net/wireless/mediatek/mt76/mt76x2/mt76x2.h

@@ -58,7 +58,6 @@ int mt76x2_init_hardware(struct mt76x02_dev *dev);
 void mt76x2_stop_hardware(struct mt76x02_dev *dev);
 int mt76x2_eeprom_init(struct mt76x02_dev *dev);
 int mt76x2_apply_calibration_data(struct mt76x02_dev *dev, int channel);
-void mt76x2_set_tx_ackto(struct mt76x02_dev *dev);
 
 void mt76x2_phy_set_antenna(struct mt76x02_dev *dev);
 int mt76x2_phy_start(struct mt76x02_dev *dev);

drivers/net/wireless/mediatek/mt76/mt76x2/pci_init.c

@@ -153,7 +153,7 @@ static int mt76x2_mac_reset(struct mt76x02_dev *dev, bool hard)
 		MT_CH_TIME_CFG_EIFS_AS_BUSY |
 		FIELD_PREP(MT_CH_TIME_CFG_CH_TIMER_CLR, 1));
 
-	mt76x2_set_tx_ackto(dev);
+	mt76x02_set_tx_ackto(dev);
 
 	return 0;
 }
@@ -260,23 +260,6 @@ mt76x2_power_on(struct mt76x02_dev *dev)
 	mt76x2_power_on_rf(dev, 1);
 }
 
-void mt76x2_set_tx_ackto(struct mt76x02_dev *dev)
-{
-	u8 ackto, sifs, slottime = dev->slottime;
-
-	/* As defined by IEEE 802.11-2007 17.3.8.6 */
-	slottime += 3 * dev->coverage_class;
-	mt76_rmw_field(dev, MT_BKOFF_SLOT_CFG,
-		       MT_BKOFF_SLOT_CFG_SLOTTIME, slottime);
-
-	sifs = mt76_get_field(dev, MT_XIFS_TIME_CFG,
-			      MT_XIFS_TIME_CFG_OFDM_SIFS);
-
-	ackto = slottime + sifs;
-	mt76_rmw_field(dev, MT_TX_TIMEOUT_CFG,
-		       MT_TX_TIMEOUT_CFG_ACKTO, ackto);
-}
-
 int mt76x2_init_hardware(struct mt76x02_dev *dev)
 {
 	int ret;

drivers/net/wireless/mediatek/mt76/mt76x2/pci_main.c

@@ -158,7 +158,7 @@ mt76x2_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 		int slottime = info->use_short_slot ? 9 : 20;
 
 		dev->slottime = slottime;
-		mt76x2_set_tx_ackto(dev);
+		mt76x02_set_tx_ackto(dev);
 	}
 
 	mutex_unlock(&dev->mt76.mutex);
@@ -170,17 +170,6 @@ mt76x2_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 {
 }
 
-static void mt76x2_set_coverage_class(struct ieee80211_hw *hw,
-				      s16 coverage_class)
-{
-	struct mt76x02_dev *dev = hw->priv;
-
-	mutex_lock(&dev->mt76.mutex);
-	dev->coverage_class = coverage_class;
-	mt76x2_set_tx_ackto(dev);
-	mutex_unlock(&dev->mt76.mutex);
-}
-
 static int
 mt76x2_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set)
 {
@@ -257,7 +246,7 @@ const struct ieee80211_ops mt76x2_ops = {
 	.wake_tx_queue = mt76_wake_tx_queue,
 	.sta_rate_tbl_update = mt76x02_sta_rate_tbl_update,
 	.release_buffered_frames = mt76_release_buffered_frames,
-	.set_coverage_class = mt76x2_set_coverage_class,
+	.set_coverage_class = mt76x02_set_coverage_class,
 	.get_survey = mt76_get_survey,
 	.set_tim = mt76x2_set_tim,
 	.set_antenna = mt76x2_set_antenna,