wifi: mt76: mt7921: add unified ROC cmd/event support

Add unified ROC cmd/event which is only supported by the newer fw.

Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Co-developed-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Co-developed-by: Kaikai Hu <kaikai.hu@mediatek.com>
Signed-off-by: Kaikai Hu <kaikai.hu@mediatek.com>
Signed-off-by: Quan Zhou <quan.zhou@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h

@@ -121,11 +121,13 @@ struct mt76_connac2_mcu_rxd {
 
 	u8 eid;
 	u8 seq;
-	u8 rsv[2];
+	u8 option;
-
+	u8 rsv;
 	u8 ext_eid;
 	u8 rsv1[2];
 	u8 s2d_index;
+
+	u8 tlv[0];
 };
 
 struct mt76_connac2_patch_hdr {
@@ -957,6 +959,9 @@ enum {
 	DEV_INFO_MAX_NUM
 };
 
+#define MCU_UNI_CMD_EVENT                       BIT(1)
+#define MCU_UNI_CMD_UNSOLICITED_EVENT           BIT(2)
+
 /* event table */
 enum {
 	MCU_EVENT_TARGET_ADDRESS_LEN = 0x01,
@@ -1163,6 +1168,7 @@ enum {
 	MCU_UNI_CMD_OFFLOAD = 0x06,
 	MCU_UNI_CMD_HIF_CTRL = 0x07,
 	MCU_UNI_CMD_SNIFFER = 0x24,
+	MCU_UNI_CMD_ROC = 0x27,
 };
 
 enum {

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

@@ -302,6 +302,23 @@ mt7921_mcu_rx_unsolicited_event(struct mt7921_dev *dev, struct sk_buff *skb)
 	dev_kfree_skb(skb);
 }
 
+static void
+mt7921_mcu_uni_rx_unsolicited_event(struct mt7921_dev *dev,
+				    struct sk_buff *skb)
+{
+	struct mt76_connac2_mcu_rxd *rxd;
+
+	rxd = (struct mt76_connac2_mcu_rxd *)skb->data;
+
+	switch (rxd->eid) {
+	case MCU_UNI_EVENT_ROC:
+		break;
+	default:
+		break;
+	}
+	dev_kfree_skb(skb);
+}
+
 void mt7921_mcu_rx_event(struct mt7921_dev *dev, struct sk_buff *skb)
 {
 	struct mt76_connac2_mcu_rxd *rxd;
@@ -311,6 +328,11 @@ void mt7921_mcu_rx_event(struct mt7921_dev *dev, struct sk_buff *skb)
 
 	rxd = (struct mt76_connac2_mcu_rxd *)skb->data;
 
+	if (rxd->option & MCU_UNI_CMD_UNSOLICITED_EVENT) {
+		mt7921_mcu_uni_rx_unsolicited_event(dev, skb);
+		return;
+	}
+
 	if (rxd->eid == 0x6) {
 		mt76_mcu_rx_event(&dev->mt76, skb);
 		return;
@@ -636,6 +658,103 @@ int mt7921_mcu_set_tx(struct mt7921_dev *dev, struct ieee80211_vif *vif)
 				 &req_mu, sizeof(req_mu), false);
 }
 
+int mt7921_mcu_set_roc(struct mt7921_phy *phy, struct mt7921_vif *vif,
+		       struct ieee80211_channel *chan, int duration,
+		       enum mt7921_roc_req type, u8 token_id)
+{
+	int center_ch = ieee80211_frequency_to_channel(chan->center_freq);
+	struct mt7921_dev *dev = phy->dev;
+	struct {
+		struct {
+			u8 rsv[4];
+		} __packed hdr;
+		struct roc_acquire_tlv {
+			__le16 tag;
+			__le16 len;
+			u8 bss_idx;
+			u8 tokenid;
+			u8 control_channel;
+			u8 sco;
+			u8 band;
+			u8 bw;
+			u8 center_chan;
+			u8 center_chan2;
+			u8 bw_from_ap;
+			u8 center_chan_from_ap;
+			u8 center_chan2_from_ap;
+			u8 reqtype;
+			__le32 maxinterval;
+			u8 dbdcband;
+			u8 rsv[3];
+		} __packed roc;
+	} __packed req = {
+		.roc = {
+			.tag = cpu_to_le16(UNI_ROC_ACQUIRE),
+			.len = cpu_to_le16(sizeof(struct roc_acquire_tlv)),
+			.tokenid = token_id,
+			.reqtype = type,
+			.maxinterval = cpu_to_le32(duration),
+			.bss_idx = vif->mt76.idx,
+			.control_channel = chan->hw_value,
+			.bw = CMD_CBW_20MHZ,
+			.bw_from_ap = CMD_CBW_20MHZ,
+			.center_chan = center_ch,
+			.center_chan_from_ap = center_ch,
+			.dbdcband = 0xff, /* auto */
+		},
+	};
+
+	if (chan->hw_value < center_ch)
+		req.roc.sco = 1; /* SCA */
+	else if (chan->hw_value > center_ch)
+		req.roc.sco = 3; /* SCB */
+
+	switch (chan->band) {
+	case NL80211_BAND_6GHZ:
+		req.roc.band = 3;
+		break;
+	case NL80211_BAND_5GHZ:
+		req.roc.band = 2;
+		break;
+	default:
+		req.roc.band = 1;
+		break;
+	}
+
+	return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD(ROC),
+				 &req, sizeof(req), false);
+}
+
+int mt7921_mcu_abort_roc(struct mt7921_phy *phy, struct mt7921_vif *vif,
+			 u8 token_id)
+{
+	struct mt7921_dev *dev = phy->dev;
+	struct {
+		struct {
+			u8 rsv[4];
+		} __packed hdr;
+		struct roc_abort_tlv {
+			__le16 tag;
+			__le16 len;
+			u8 bss_idx;
+			u8 tokenid;
+			u8 dbdcband;
+			u8 rsv[5];
+		} __packed abort;
+	} __packed req = {
+		.abort = {
+			.tag = cpu_to_le16(UNI_ROC_ABORT),
+			.len = cpu_to_le16(sizeof(struct roc_abort_tlv)),
+			.tokenid = token_id,
+			.bss_idx = vif->mt76.idx,
+			.dbdcband = 0xff, /* auto*/
+		},
+	};
+
+	return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD(ROC),
+				 &req, sizeof(req), false);
+}
+
 int mt7921_mcu_set_chan_info(struct mt7921_phy *phy, int cmd)
 {
 	struct mt7921_dev *dev = phy->dev;

drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h

@@ -53,6 +53,20 @@
 #define MT7921_SDIO_HDR_TX_BYTES	GENMASK(15, 0)
 #define MT7921_SDIO_HDR_PKT_TYPE	GENMASK(17, 16)
 
+#define MCU_UNI_EVENT_ROC  0x27
+
+enum {
+	UNI_ROC_ACQUIRE,
+	UNI_ROC_ABORT,
+	UNI_ROC_NUM
+};
+
+enum mt7921_roc_req {
+	MT7921_ROC_REQ_JOIN,
+	MT7921_ROC_REQ_ROC,
+	MT7921_ROC_REQ_NUM
+};
+
 enum mt7921_sdio_pkt_type {
 	MT7921_SDIO_TXD,
 	MT7921_SDIO_DATA,
@@ -508,4 +522,9 @@ int mt7921_set_tx_sar_pwr(struct ieee80211_hw *hw,
 
 int mt7921_mcu_set_clc(struct mt7921_dev *dev, u8 *alpha2,
 		       enum environment_cap env_cap);
+int mt7921_mcu_set_roc(struct mt7921_phy *phy, struct mt7921_vif *vif,
+		       struct ieee80211_channel *chan, int duration,
+		       enum mt7921_roc_req type, u8 token_id);
+int mt7921_mcu_abort_roc(struct mt7921_phy *phy, struct mt7921_vif *vif,
+			 u8 token_id);
 #endif