introduce support for mt7663s devices

index 126c54afefd4..afac8d81d317 100644
@@ -529,18 +529,18 @@ int mt7615_mac_write_txwi(struct mt7615_dev *dev, __le32 *txwi,
 			  struct ieee80211_sta *sta, int pid,
 			  struct ieee80211_key_conf *key, bool beacon)
 {
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	u8 fc_type, fc_stype, p_fmt, q_idx, omac_idx = 0, wmm_idx = 0;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_tx_rate *rate = &info->control.rates[0];
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	bool ext_phy = info->hw_queue & MT_TX_HW_QUEUE_EXT_PHY;
 	bool multicast = is_multicast_ether_addr(hdr->addr1);
 	struct ieee80211_vif *vif = info->control.vif;
+	bool is_mmio = mt76_is_mmio(&dev->mt76);
+	u32 val, sz_txd = is_mmio ? MT_TXD_SIZE : MT_USB_TXD_SIZE;
 	struct mt76_phy *mphy = &dev->mphy;
-	bool ext_phy = info->hw_queue & MT_TX_HW_QUEUE_EXT_PHY;
-	bool is_usb = mt76_is_usb(&dev->mt76);
-	int tx_count = 8;
-	u8 fc_type, fc_stype, p_fmt, q_idx, omac_idx = 0, wmm_idx = 0;
 	__le16 fc = hdr->frame_control;
-	u32 val, sz_txd = is_usb ? MT_USB_TXD_SIZE : MT_TXD_SIZE;
+	int tx_count = 8;
 	u16 seqno = 0;
 
 	if (vif) {

@@ -566,10 +566,10 @@ int mt7615_mac_write_txwi(struct mt7615_dev *dev, __le32 *txwi,
 		p_fmt = MT_TX_TYPE_FW;
 		q_idx = ext_phy ? MT_LMAC_BCN1 : MT_LMAC_BCN0;
 	} else if (skb_get_queue_mapping(skb) >= MT_TXQ_PSD) {
-		p_fmt = is_usb ? MT_TX_TYPE_SF : MT_TX_TYPE_CT;
+		p_fmt = is_mmio ? MT_TX_TYPE_CT : MT_TX_TYPE_SF;
 		q_idx = ext_phy ? MT_LMAC_ALTX1 : MT_LMAC_ALTX0;
 	} else {
-		p_fmt = is_usb ? MT_TX_TYPE_SF : MT_TX_TYPE_CT;
+		p_fmt = is_mmio ? MT_TX_TYPE_CT : MT_TX_TYPE_SF;
 		q_idx = wmm_idx * MT7615_MAX_WMM_SETS +
 			mt7615_lmac_mapping(dev, skb_get_queue_mapping(skb));
 	}

@@ -675,7 +675,7 @@ int mt7615_mac_write_txwi(struct mt7615_dev *dev, __le32 *txwi,
 	txwi[7] = FIELD_PREP(MT_TXD7_TYPE, fc_type) |
 		  FIELD_PREP(MT_TXD7_SUB_TYPE, fc_stype) |
 		  FIELD_PREP(MT_TXD7_SPE_IDX, 0x18);
-	if (is_usb)
+	if (!is_mmio)
 		txwi[8] = FIELD_PREP(MT_TXD8_L_TYPE, fc_type) |
 			  FIELD_PREP(MT_TXD8_L_SUB_TYPE, fc_stype);
 

index c6e44283bd5f..e6a402c0f5eb 100644
@@ -1024,7 +1024,7 @@ mt76u_bulk_msg(struct mt76_dev *dev, void *data, int len, int *actual_len,
 	return usb_bulk_msg(udev, pipe, data, len, actual_len, timeout);
 }
 
-int mt76u_skb_dma_info(struct sk_buff *skb, u32 info);
+int mt76_skb_adjust_pad(struct sk_buff *skb);
 int mt76u_vendor_request(struct mt76_dev *dev, u8 req,
 			 u8 req_type, u16 val, u16 offset,
 			 void *buf, size_t len);

index 1f1578895ed5..aba926f1eeb5 100644
@@ -252,7 +252,8 @@ mt7663u_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
 {
 	struct mt7615_sta *msta = container_of(wcid, struct mt7615_sta, wcid);
 	struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76);
-	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb);
+	struct sk_buff *skb = tx_info->skb;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
 	if ((info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) &&
 	    !msta->rate_probe) {

@@ -262,9 +263,10 @@ mt7663u_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
 				     msta->rates);
 		spin_unlock_bh(&dev->mt76.lock);
 	}
-	mt7663u_mac_write_txwi(dev, wcid, qid, sta, tx_info->skb);
+	mt7663u_mac_write_txwi(dev, wcid, qid, sta, skb);
 
-	return mt76u_skb_dma_info(tx_info->skb, tx_info->skb->len);
+	put_unaligned_le32(skb->len, skb_push(skb, sizeof(skb->len)));
+	return mt76_skb_adjust_pad(skb);
 }
 
 static bool mt7663u_tx_status_data(struct mt76_dev *mdev, u8 *update)

index 39cd7dd95c9c..0b33df3e3bfe 100644
@@ -28,7 +28,8 @@ mt7663u_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
 	else
 		ep = MT_EP_OUT_AC_BE;
 
-	ret = mt76u_skb_dma_info(skb, skb->len);
+	put_unaligned_le32(skb->len, skb_push(skb, sizeof(skb->len)));
+	ret = mt76_skb_adjust_pad(skb);
 	if (ret < 0)
 		goto out;
 

index 0180b6200b17..37321e656776 100644
@@ -56,8 +56,9 @@ int mt76x02u_skb_dma_info(struct sk_buff *skb, int port, u32 flags)
 	 */
 	info = FIELD_PREP(MT_TXD_INFO_LEN, round_up(skb->len, 4)) |
 	       FIELD_PREP(MT_TXD_INFO_DPORT, port) | flags;
+	put_unaligned_le32(info, skb_push(skb, sizeof(info)));
 
-	return mt76u_skb_dma_info(skb, info);
+	return mt76_skb_adjust_pad(skb);
 }
 
 int mt76x02u_tx_prepare_skb(struct mt76_dev *mdev, void *data,

index 5adf92d7a9f3..3afd89ecd6c9 100644
@@ -677,3 +677,32 @@ u8 mt76_ac_to_hwq(u8 ac)
 	return wmm_queue_map[ac];
 }
 EXPORT_SYMBOL_GPL(mt76_ac_to_hwq);
+
+int mt76_skb_adjust_pad(struct sk_buff *skb)
+{
+	struct sk_buff *iter, *last = skb;
+	u32 pad;
+
+	/* Add zero pad of 4 - 7 bytes */
+	pad = round_up(skb->len, 4) + 4 - skb->len;
+
+	/* First packet of a A-MSDU burst keeps track of the whole burst
+	 * length, need to update length of it and the last packet.
+	 */
+	skb_walk_frags(skb, iter) {
+		last = iter;
+		if (!iter->next) {
+			skb->data_len += pad;
+			skb->len += pad;
+			break;
+		}
+	}
+
+	if (skb_pad(last, pad))
+		return -ENOMEM;
+
+	__skb_put(last, pad);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mt76_skb_adjust_pad);

index 84e2fd0a4fc1..5f19f9e51d9c 100644
@@ -904,35 +904,6 @@ mt76u_tx_setup_buffers(struct mt76_dev *dev, struct sk_buff *skb,
 	return urb->num_sgs;
 }
 
-int mt76u_skb_dma_info(struct sk_buff *skb, u32 info)
-{
-	struct sk_buff *iter, *last = skb;
-	u32 pad;
-
-	put_unaligned_le32(info, skb_push(skb, sizeof(info)));
-	/* Add zero pad of 4 - 7 bytes */
-	pad = round_up(skb->len, 4) + 4 - skb->len;
-
-	/* First packet of a A-MSDU burst keeps track of the whole burst
-	 * length, need to update length of it and the last packet.
-	 */
-	skb_walk_frags(skb, iter) {
-		last = iter;
-		if (!iter->next) {
-			skb->data_len += pad;
-			skb->len += pad;
-			break;
-		}
-	}
-
-	if (skb_pad(last, pad))
-		return -ENOMEM;
-	__skb_put(last, pad);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(mt76u_skb_dma_info);
-
 static int
 mt76u_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid,
 		   struct sk_buff *skb, struct mt76_wcid *wcid,

index afac8d81d317..3dd8dd28690e 100644
@@ -967,7 +967,7 @@ void mt7615_mac_set_rates(struct mt7615_phy *phy, struct mt7615_sta *sta,
 	struct mt7615_rate_desc rd;
 	u32 w5, w27, addr;
 
-	if (mt76_is_usb(&dev->mt76)) {
+	if (!mt76_is_mmio(&dev->mt76)) {
 		mt7615_mac_queue_rate_update(phy, sta, probe_rate, rates);
 		return;
 	}

index 79453c890f20..2d0b1f49fdbc 100644
@@ -417,10 +417,10 @@ static int mt7615_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	mt76_wcid_key_setup(&dev->mt76, wcid,
 			    cmd == SET_KEY ? key : NULL);
 
-	if (mt76_is_usb(&dev->mt76))
-		err = mt7615_queue_key_update(dev, cmd, msta, key);
-	else
+	if (mt76_is_mmio(&dev->mt76))
 		err = mt7615_mac_wtbl_set_key(dev, wcid, key, cmd);
+	else
+		err = mt7615_queue_key_update(dev, cmd, msta, key);
 
 	mt7615_mutex_release(dev);
 

index f70d49cbc027..097cd150d879 100644
@@ -409,6 +409,7 @@ extern struct ieee80211_rate mt7615_rates[12];
 extern const struct ieee80211_ops mt7615_ops;
 extern const u32 mt7615e_reg_map[__MT_BASE_MAX];
 extern const u32 mt7663e_reg_map[__MT_BASE_MAX];
+extern const u32 mt7663_usb_sdio_reg_map[__MT_BASE_MAX];
 extern struct pci_driver mt7615_pci_driver;
 extern struct platform_driver mt7622_wmac_driver;
 extern const struct mt76_testmode_ops mt7615_testmode_ops;

@@ -657,8 +658,16 @@ int mt7615_mcu_update_arp_filter(struct ieee80211_hw *hw,
 int __mt7663_load_firmware(struct mt7615_dev *dev);
 
 /* usb */
-void mt7663u_wtbl_work(struct work_struct *work);
+int mt7663_usb_sdio_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
+				   enum mt76_txq_id qid, struct mt76_wcid *wcid,
+				   struct ieee80211_sta *sta,
+				   struct mt76_tx_info *tx_info);
+bool mt7663_usb_sdio_tx_status_data(struct mt76_dev *mdev, u8 *update);
+void mt7663_usb_sdio_tx_complete_skb(struct mt76_dev *mdev,
+				     enum mt76_txq_id qid,
+				     struct mt76_queue_entry *e);
+void mt7663_usb_sdio_wtbl_work(struct work_struct *work);
+int mt7663_usb_sdio_register_device(struct mt7615_dev *dev);
 int mt7663u_mcu_init(struct mt7615_dev *dev);
-int mt7663u_register_device(struct mt7615_dev *dev);
 
 #endif

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index f340af40f8f4..3d4bf72700a5 100644
@@ -305,7 +305,11 @@ mt76_phy_init(struct mt76_dev *dev, struct ieee80211_hw *hw)
 	ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
 	ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
 	ieee80211_hw_set(hw, TX_AMSDU);
-	ieee80211_hw_set(hw, TX_FRAG_LIST);
+
+	/* TODO: avoid linearization for SDIO */
+	if (!mt76_is_sdio(dev))
+		ieee80211_hw_set(hw, TX_FRAG_LIST);
+
 	ieee80211_hw_set(hw, MFP_CAPABLE);
 	ieee80211_hw_set(hw, AP_LINK_PS);
 	ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);

index e6a402c0f5eb..4482eeb91a64 100644
@@ -34,6 +34,7 @@ struct mt76_reg_pair {
 enum mt76_bus_type {
 	MT76_BUS_MMIO,
 	MT76_BUS_USB,
+	MT76_BUS_SDIO,
 };
 
 struct mt76_bus_ops {

@@ -53,6 +54,7 @@ struct mt76_bus_ops {
 
 #define mt76_is_usb(dev) ((dev)->bus->type == MT76_BUS_USB)
 #define mt76_is_mmio(dev) ((dev)->bus->type == MT76_BUS_MMIO)
+#define mt76_is_sdio(dev) ((dev)->bus->type == MT76_BUS_SDIO)
 
 enum mt76_txq_id {
 	MT_TXQ_VO = IEEE80211_AC_VO,

@@ -95,6 +97,7 @@ struct mt76_queue_entry {
 	union {
 		struct mt76_txwi_cache *txwi;
 		struct urb *urb;
+		int buf_sz;
 	};
 	enum mt76_txq_id qid;
 	bool skip_buf0:1;

@@ -147,6 +150,8 @@ struct mt76_mcu_ops {
 			    int len, bool wait_resp);
 	int (*mcu_skb_send_msg)(struct mt76_dev *dev, struct sk_buff *skb,
 				int cmd, bool wait_resp);
+	u32 (*mcu_rr)(struct mt76_dev *dev, u32 offset);
+	void (*mcu_wr)(struct mt76_dev *dev, u32 offset, u32 val);
 	int (*mcu_wr_rp)(struct mt76_dev *dev, u32 base,
 			 const struct mt76_reg_pair *rp, int len);
 	int (*mcu_rd_rp)(struct mt76_dev *dev, u32 base,

@@ -441,6 +446,24 @@ struct mt76_usb {
 	} mcu;
 };
 
+struct mt76_sdio {
+	struct task_struct *tx_kthread;
+	struct task_struct *kthread;
+	struct work_struct stat_work;
+
+	unsigned long state;
+
+	struct sdio_func *func;
+
+	struct {
+		struct mutex lock;
+		int pse_data_quota;
+		int ple_data_quota;
+		int pse_mcu_quota;
+		int deficit;
+	} sched;
+};
+
 struct mt76_mmio {
 	void __iomem *regs;
 	spinlock_t irq_lock;

@@ -628,6 +651,7 @@ struct mt76_dev {
 	union {
 		struct mt76_mmio mmio;
 		struct mt76_usb usb;
+		struct mt76_sdio sdio;
 	};
 };
 

@@ -1039,6 +1063,12 @@ void mt76u_stop_rx(struct mt76_dev *dev);
 int mt76u_resume_rx(struct mt76_dev *dev);
 void mt76u_queues_deinit(struct mt76_dev *dev);
 
+int mt76s_init(struct mt76_dev *dev, struct sdio_func *func,
+	       const struct mt76_bus_ops *bus_ops);
+int mt76s_alloc_queues(struct mt76_dev *dev);
+void mt76s_stop_txrx(struct mt76_dev *dev);
+void mt76s_deinit(struct mt76_dev *dev);
+
 struct sk_buff *
 mt76_mcu_msg_alloc(struct mt76_dev *dev, const void *data,
 		   int data_len);

index 610cc1fbec5b..50009bc5ee8d 100644
@@ -359,7 +359,10 @@ int mt7663_usb_sdio_register_device(struct mt7615_dev *dev)
 		return err;
 
 	/* check hw sg support in order to enable AMSDU */
-	hw->max_tx_fragments = dev->mt76.usb.sg_en ? MT_HW_TXP_MAX_BUF_NUM : 1;
+	if (dev->mt76.usb.sg_en || mt76_is_sdio(&dev->mt76))
+		hw->max_tx_fragments = MT_HW_TXP_MAX_BUF_NUM;
+	else
+		hw->max_tx_fragments = 1;
 	hw->extra_tx_headroom += MT_USB_TXD_SIZE;
 	if (mt76_is_usb(&dev->mt76))
 		hw->extra_tx_headroom += MT_USB_HDR_SIZE;

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index e8c7aa5c35ce..7b856e9eee1e 100644
@@ -81,6 +81,7 @@ enum {
 	MCU_EVENT_GENERIC = 0x01,
 	MCU_EVENT_ACCESS_REG = 0x02,
 	MCU_EVENT_MT_PATCH_SEM = 0x04,
+	MCU_EVENT_REG_ACCESS = 0x05,
 	MCU_EVENT_SCAN_DONE = 0x0d,
 	MCU_EVENT_ROC = 0x10,
 	MCU_EVENT_BSS_ABSENCE  = 0x11,

@@ -242,6 +243,8 @@ enum {
 #define MCU_CMD_MASK		~(MCU_FW_PREFIX | MCU_UNI_PREFIX |	\
 				  MCU_CE_PREFIX | MCU_QUERY_PREFIX)
 
+#define MCU_QUERY_MASK		BIT(16)
+
 enum {
 	MCU_CMD_TARGET_ADDRESS_LEN_REQ = MCU_FW_PREFIX | 0x01,
 	MCU_CMD_FW_START_REQ = MCU_FW_PREFIX | 0x02,

@@ -429,6 +432,11 @@ struct nt7615_sched_scan_done {
 	__le16 pad;
 } __packed;
 
+struct mt7615_mcu_reg_event {
+	__le32 reg;
+	__le32 val;
+} __packed;
+
 struct mt7615_mcu_bss_event {
 	u8 bss_idx;
 	u8 is_absent;

@@ -581,6 +589,8 @@ enum {
 	MCU_CMD_SET_P2P_OPPPS = MCU_CE_PREFIX | 0x33,
 	MCU_CMD_SCHED_SCAN_ENABLE = MCU_CE_PREFIX | 0x61,
 	MCU_CMD_SCHED_SCAN_REQ = MCU_CE_PREFIX | 0x62,
+	MCU_CMD_REG_WRITE = MCU_CE_PREFIX | 0xc0,
+	MCU_CMD_REG_READ = MCU_CE_PREFIX | MCU_QUERY_MASK | 0xc0,
 };
 
 #define MCU_CMD_ACK		BIT(0)

index 461ac6c42271..133f93a6ed1b 100644
@@ -43,6 +43,7 @@ const u32 mt7663e_reg_map[] = {
 	[MT_CSR_BASE]		= 0x07000,
 	[MT_PLE_BASE]		= 0x08000,
 	[MT_PSE_BASE]		= 0x0c000,
+	[MT_PP_BASE]            = 0x0e000,
 	[MT_CFG_BASE]		= 0x20000,
 	[MT_AGG_BASE]		= 0x22000,
 	[MT_TMAC_BASE]		= 0x24000,

index 097cd150d879..2964d0dc9736 100644
@@ -656,6 +656,8 @@ int mt7615_mcu_update_arp_filter(struct ieee80211_hw *hw,
 				 struct ieee80211_vif *vif,
 				 struct ieee80211_bss_conf *info);
 int __mt7663_load_firmware(struct mt7615_dev *dev);
+u32 mt7615_mcu_reg_rr(struct mt76_dev *dev, u32 offset);
+void mt7615_mcu_reg_wr(struct mt76_dev *dev, u32 offset, u32 val);
 
 /* usb */
 int mt7663_usb_sdio_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,

@@ -670,4 +672,12 @@ void mt7663_usb_sdio_wtbl_work(struct work_struct *work);
 int mt7663_usb_sdio_register_device(struct mt7615_dev *dev);
 int mt7663u_mcu_init(struct mt7615_dev *dev);
 
+/* sdio */
+u32 mt7663s_read_pcr(struct mt7615_dev *dev);
+int mt7663s_mcu_init(struct mt7615_dev *dev);
+int mt7663s_driver_own(struct mt7615_dev *dev);
+int mt7663s_firmware_own(struct mt7615_dev *dev);
+int mt7663s_kthread_run(void *data);
+void mt7663s_sdio_irq(struct sdio_func *func);
+
 #endif

index 8d2c54918e68..8b21c025fd46 100644
@@ -28,6 +28,7 @@ enum mt7615_reg_base {
 	MT_PCIE_REMAP_BASE2,
 	MT_TOP_MISC_BASE,
 	MT_EFUSE_ADDR_BASE,
+	MT_PP_BASE,
 	__MT_BASE_MAX,
 };
 

@@ -152,6 +153,8 @@ enum mt7615_reg_base {
 
 #define MT_PLE(ofs)			((dev)->reg_map[MT_PLE_BASE] + (ofs))
 
+#define MT_PLE_PG_HIF0_GROUP		MT_PLE(0x110)
+#define MT_HIF0_MIN_QUOTA		GENMASK(11, 0)
 #define MT_PLE_FL_Q0_CTRL		MT_PLE(0x1b0)
 #define MT_PLE_FL_Q1_CTRL		MT_PLE(0x1b4)
 #define MT_PLE_FL_Q2_CTRL		MT_PLE(0x1b8)

@@ -161,6 +164,10 @@ enum mt7615_reg_base {
 					       ((n) << 2))
 
 #define MT_PSE(ofs)			((dev)->reg_map[MT_PSE_BASE] + (ofs))
+#define MT_PSE_PG_HIF0_GROUP		MT_PSE(0x110)
+#define MT_HIF0_MIN_QUOTA		GENMASK(11, 0)
+#define MT_PSE_PG_HIF1_GROUP		MT_PSE(0x118)
+#define MT_HIF1_MIN_QUOTA		GENMASK(11, 0)
 #define MT_PSE_QUEUE_EMPTY		MT_PSE(0x0b4)
 #define MT_HIF_0_EMPTY_MASK		BIT(16)
 #define MT_HIF_1_EMPTY_MASK		BIT(17)

@@ -168,6 +175,11 @@ enum mt7615_reg_base {
 #define MT_PSE_PG_INFO			MT_PSE(0x194)
 #define MT_PSE_SRC_CNT			GENMASK(27, 16)
 
+#define MT_PP(ofs)			((dev)->reg_map[MT_PP_BASE] + (ofs))
+#define MT_PP_TXDWCNT			MT_PP(0x0)
+#define MT_PP_TXDWCNT_TX0_ADD_DW_CNT	GENMASK(7, 0)
+#define MT_PP_TXDWCNT_TX1_ADD_DW_CNT	GENMASK(15, 8)
+
 #define MT_WF_PHY_BASE			0x82070000
 #define MT_WF_PHY(ofs)			(MT_WF_PHY_BASE + (ofs))
 

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index 50009bc5ee8d..6dffdaaa9ad5 100644
@@ -24,6 +24,7 @@ const u32 mt7663_usb_sdio_reg_map[] = {
 	[MT_TOP_MISC_BASE]	= 0x81020000,
 	[MT_PLE_BASE]		= 0x82060000,
 	[MT_PSE_BASE]		= 0x82068000,
+	[MT_PP_BASE]		= 0x8206c000,
 	[MT_WTBL_BASE_ADDR]	= 0x820e0000,
 	[MT_CFG_BASE]		= 0x820f0000,
 	[MT_AGG_BASE]		= 0x820f2000,