mt76: mt7921: add MT7921_COMMON module

This is a preliminary patch to introduce mt7921s support.

MT7921_COMMON module grouping bus independent objects the both mt7921e and
mt7921s can share with and have to rely on.

Tested-by: Deren Wu <deren.wu@mediatek.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7921/Kconfig

@@ -1,8 +1,12 @@
 # SPDX-License-Identifier: ISC
-config MT7921E
-	tristate "MediaTek MT7921E (PCIe) support"
+config MT7921_COMMON
+	tristate
 	select MT76_CONNAC_LIB
 	select WANT_DEV_COREDUMP
+
+config MT7921E
+	tristate "MediaTek MT7921E (PCIe) support"
+	select MT7921_COMMON
 	depends on MAC80211
 	depends on PCI
 	help

drivers/net/wireless/mediatek/mt76/mt7921/Makefile

@@ -1,9 +1,10 @@
 # SPDX-License-Identifier: ISC
 
+obj-$(CONFIG_MT7921_COMMON) += mt7921-common.o
 obj-$(CONFIG_MT7921E) += mt7921e.o
 
 CFLAGS_trace.o := -I$(src)
 
-mt7921e-y := pci.o pci_mac.o pci_mcu.o mac.o mcu.o dma.o eeprom.o main.o \
-	     init.o debugfs.o trace.o
-mt7921e-$(CONFIG_NL80211_TESTMODE) += testmode.o
+mt7921-common-y := mac.o mcu.o eeprom.o main.o init.o debugfs.o trace.o
+mt7921-common-$(CONFIG_NL80211_TESTMODE) += testmode.o
+mt7921e-y := pci.o pci_mac.o pci_mcu.o dma.o

drivers/net/wireless/mediatek/mt76/mt7921/init.c

@@ -145,6 +145,7 @@ int mt7921_mac_init(struct mt7921_dev *dev)
 
 	return mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0);
 }
+EXPORT_SYMBOL_GPL(mt7921_mac_init);
 
 static int __mt7921_init_hardware(struct mt7921_dev *dev)
 {
@@ -285,3 +286,4 @@ int mt7921_register_device(struct mt7921_dev *dev)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(mt7921_register_device);

drivers/net/wireless/mediatek/mt76/mt7921/mac.c

@@ -39,6 +39,7 @@ static struct mt76_wcid *mt7921_rx_get_wcid(struct mt7921_dev *dev,
 void mt7921_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps)
 {
 }
+EXPORT_SYMBOL_GPL(mt7921_sta_ps);
 
 bool mt7921_mac_wtbl_update(struct mt7921_dev *dev, int idx, u32 mask)
 {
@@ -165,6 +166,7 @@ void mt7921_mac_sta_poll(struct mt7921_dev *dev)
 		}
 	}
 }
+EXPORT_SYMBOL_GPL(mt7921_mac_sta_poll);
 
 static void
 mt7921_mac_decode_he_radiotap_ru(struct mt76_rx_status *status,
@@ -916,6 +918,7 @@ void mt7921_mac_write_txwi(struct mt7921_dev *dev, __le32 *txwi,
 		txwi[3] |= cpu_to_le32(MT_TXD3_BA_DISABLE);
 	}
 }
+EXPORT_SYMBOL_GPL(mt7921_mac_write_txwi);
 
 void mt7921_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi)
 {
@@ -940,6 +943,7 @@ void mt7921_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi)
 	if (!test_and_set_bit(tid, &msta->ampdu_state))
 		ieee80211_start_tx_ba_session(sta, tid, 0);
 }
+EXPORT_SYMBOL_GPL(mt7921_tx_check_aggr);
 
 static bool
 mt7921_mac_add_txs_skb(struct mt7921_dev *dev, struct mt76_wcid *wcid, int pid,
@@ -1128,6 +1132,7 @@ void mt7921_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
 		break;
 	}
 }
+EXPORT_SYMBOL_GPL(mt7921_queue_rx_skb);
 
 void mt7921_mac_reset_counters(struct mt7921_phy *phy)
 {
@@ -1243,6 +1248,7 @@ void mt7921_update_channel(struct mt76_phy *mphy)
 
 	mt76_connac_power_save_sched(mphy, &dev->pm);
 }
+EXPORT_SYMBOL_GPL(mt7921_update_channel);
 
 static void
 mt7921_vif_connect_iter(void *priv, u8 *mac,

drivers/net/wireless/mediatek/mt76/mt7921/main.c

@@ -237,6 +237,7 @@ int __mt7921_start(struct mt7921_phy *phy)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(__mt7921_start);
 
 static int mt7921_start(struct ieee80211_hw *hw)
 {
@@ -646,6 +647,7 @@ int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(mt7921_mac_sta_add);
 
 void mt7921_mac_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 			  struct ieee80211_sta *sta)
@@ -667,6 +669,7 @@ void mt7921_mac_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 
 	mt7921_mutex_release(dev);
 }
+EXPORT_SYMBOL_GPL(mt7921_mac_sta_assoc);
 
 void mt7921_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 			   struct ieee80211_sta *sta)
@@ -698,6 +701,7 @@ void mt7921_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
 
 	mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
 }
+EXPORT_SYMBOL_GPL(mt7921_mac_sta_remove);
 
 void mt7921_tx_worker(struct mt76_worker *w)
 {
@@ -1250,3 +1254,7 @@ const struct ieee80211_ops mt7921_ops = {
 	.flush = mt7921_flush,
 	.set_sar_specs = mt7921_set_sar_specs,
 };
+EXPORT_SYMBOL_GPL(mt7921_ops);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");

drivers/net/wireless/mediatek/mt76/mt7921/mcu.c

@@ -222,6 +222,7 @@ int mt7921_mcu_parse_response(struct mt76_dev *mdev, int cmd,
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(mt7921_mcu_parse_response);
 
 int mt7921_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
 			    int cmd, int *wait_seq)
@@ -319,6 +320,7 @@ exit:
 
 	return mt76_tx_queue_skb_raw(dev, mdev->q_mcu[txq], skb, 0);
 }
+EXPORT_SYMBOL_GPL(mt7921_mcu_send_message);
 
 static void
 mt7921_mcu_scan_event(struct mt7921_dev *dev, struct sk_buff *skb)
@@ -600,6 +602,7 @@ int mt7921_mcu_restart(struct mt76_dev *dev)
 	return mt76_mcu_send_msg(dev, MCU_CMD_NIC_POWER_CTRL, &req,
 				 sizeof(req), false);
 }
+EXPORT_SYMBOL_GPL(mt7921_mcu_restart);
 
 static u32 mt7921_get_data_mode(struct mt7921_dev *dev, u32 info)
 {
@@ -903,11 +906,13 @@ int mt7921_run_firmware(struct mt7921_dev *dev)
 
 	return mt76_connac_mcu_get_nic_capability(&dev->mphy);
 }
+EXPORT_SYMBOL_GPL(mt7921_run_firmware);
 
 void mt7921_mcu_exit(struct mt7921_dev *dev)
 {
 	skb_queue_purge(&dev->mt76.mcu.res_q);
 }
+EXPORT_SYMBOL_GPL(mt7921_mcu_exit);
 
 int mt7921_mcu_set_tx(struct mt7921_dev *dev, struct ieee80211_vif *vif)
 {
@@ -1082,6 +1087,7 @@ int mt7921_mcu_set_eeprom(struct mt7921_dev *dev)
 	return mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_EFUSE_BUFFER_MODE,
 				 &req, sizeof(req), true);
 }
+EXPORT_SYMBOL_GPL(mt7921_mcu_set_eeprom);
 
 int mt7921_mcu_get_eeprom(struct mt7921_dev *dev, u32 offset)
 {
@@ -1264,6 +1270,7 @@ out:
 
 	return err;
 }
+EXPORT_SYMBOL_GPL(mt7921_mcu_drv_pmctrl);
 
 int mt7921_mcu_fw_pmctrl(struct mt7921_dev *dev)
 {
@@ -1285,6 +1292,7 @@ out:
 
 	return err;
 }
+EXPORT_SYMBOL_GPL(mt7921_mcu_fw_pmctrl);
 
 int mt7921_mcu_set_beacon_filter(struct mt7921_dev *dev,
 				 struct ieee80211_vif *vif,