mt76: mt76_connac: move hw_scan and sched_scan routine in mt76_connac_mcu module

Move hw_scan/sched_scan in mt76_connac_mcu module in order to be reused in
mt7615 and mt7921 drivers

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 197 insertions, 0 deletions

diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
index c48ccda6935d..ed0e605d1c0b 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
@@ -982,5 +982,202 @@ int mt76_connac_mcu_uni_add_bss(struct mt76_phy *phy,
 }
 EXPORT_SYMBOL_GPL(mt76_connac_mcu_uni_add_bss);
 
+#define MT76_CONNAC_SCAN_CHANNEL_TIME		60
+int mt76_connac_mcu_hw_scan(struct mt76_phy *phy, struct ieee80211_vif *vif,
+			    struct ieee80211_scan_request *scan_req)
+{
+	struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
+	struct cfg80211_scan_request *sreq = &scan_req->req;
+	int n_ssids = 0, err, i, duration = MT76_CONNAC_SCAN_CHANNEL_TIME;
+	int ext_channels_num = max_t(int, sreq->n_channels - 32, 0);
+	struct ieee80211_channel **scan_list = sreq->channels;
+	struct mt76_dev *mdev = phy->dev;
+	bool ext_phy = phy == mdev->phy2;
+	struct mt76_connac_mcu_scan_channel *chan;
+	struct mt76_connac_hw_scan_req *req;
+	struct sk_buff *skb;
+
+	skb = mt76_mcu_msg_alloc(mdev, NULL, sizeof(*req));
+	if (!skb)
+		return -ENOMEM;
+
+	set_bit(MT76_HW_SCANNING, &phy->state);
+	mvif->scan_seq_num = (mvif->scan_seq_num + 1) & 0x7f;
+
+	req = (struct mt76_connac_hw_scan_req *)skb_put(skb, sizeof(*req));
+
+	req->seq_num = mvif->scan_seq_num | ext_phy << 7;
+	req->bss_idx = mvif->idx;
+	req->scan_type = sreq->n_ssids ? 1 : 0;
+	req->probe_req_num = sreq->n_ssids ? 2 : 0;
+	req->version = 1;
+
+	for (i = 0; i < sreq->n_ssids; i++) {
+		if (!sreq->ssids[i].ssid_len)
+			continue;
+
+		req->ssids[i].ssid_len = cpu_to_le32(sreq->ssids[i].ssid_len);
+		memcpy(req->ssids[i].ssid, sreq->ssids[i].ssid,
+		       sreq->ssids[i].ssid_len);
+		n_ssids++;
+	}
+	req->ssid_type = n_ssids ? BIT(2) : BIT(0);
+	req->ssid_type_ext = n_ssids ? BIT(0) : 0;
+	req->ssids_num = n_ssids;
+
+	/* increase channel time for passive scan */
+	if (!sreq->n_ssids)
+		duration *= 2;
+	req->timeout_value = cpu_to_le16(sreq->n_channels * duration);
+	req->channel_min_dwell_time = cpu_to_le16(duration);
+	req->channel_dwell_time = cpu_to_le16(duration);
+
+	req->channels_num = min_t(u8, sreq->n_channels, 32);
+	req->ext_channels_num = min_t(u8, ext_channels_num, 32);
+	for (i = 0; i < req->channels_num + req->ext_channels_num; i++) {
+		if (i >= 32)
+			chan = &req->ext_channels[i - 32];
+		else
+			chan = &req->channels[i];
+
+		chan->band = scan_list[i]->band == NL80211_BAND_2GHZ ? 1 : 2;
+		chan->channel_num = scan_list[i]->hw_value;
+	}
+	req->channel_type = sreq->n_channels ? 4 : 0;
+
+	if (sreq->ie_len > 0) {
+		memcpy(req->ies, sreq->ie, sreq->ie_len);
+		req->ies_len = cpu_to_le16(sreq->ie_len);
+	}
+
+	memcpy(req->bssid, sreq->bssid, ETH_ALEN);
+	if (sreq->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
+		get_random_mask_addr(req->random_mac, sreq->mac_addr,
+				     sreq->mac_addr_mask);
+		req->scan_func = 1;
+	}
+
+	err = mt76_mcu_skb_send_msg(mdev, skb, MCU_CMD_START_HW_SCAN, false);
+	if (err < 0)
+		clear_bit(MT76_HW_SCANNING, &phy->state);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(mt76_connac_mcu_hw_scan);
+
+int mt76_connac_mcu_cancel_hw_scan(struct mt76_phy *phy,
+				   struct ieee80211_vif *vif)
+{
+	struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
+	struct {
+		u8 seq_num;
+		u8 is_ext_channel;
+		u8 rsv[2];
+	} __packed req = {
+		.seq_num = mvif->scan_seq_num,
+	};
+
+	if (test_and_clear_bit(MT76_HW_SCANNING, &phy->state)) {
+		struct cfg80211_scan_info info = {
+			.aborted = true,
+		};
+
+		ieee80211_scan_completed(phy->hw, &info);
+	}
+
+	return mt76_mcu_send_msg(phy->dev, MCU_CMD_CANCEL_HW_SCAN, &req,
+				 sizeof(req), false);
+}
+EXPORT_SYMBOL_GPL(mt76_connac_mcu_cancel_hw_scan);
+
+int mt76_connac_mcu_sched_scan_req(struct mt76_phy *phy,
+				   struct ieee80211_vif *vif,
+				   struct cfg80211_sched_scan_request *sreq)
+{
+	struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
+	struct ieee80211_channel **scan_list = sreq->channels;
+	struct mt76_connac_mcu_scan_channel *chan;
+	struct mt76_connac_sched_scan_req *req;
+	struct mt76_dev *mdev = phy->dev;
+	bool ext_phy = phy == mdev->phy2;
+	struct cfg80211_match_set *match;
+	struct cfg80211_ssid *ssid;
+	struct sk_buff *skb;
+	int i;
+
+	skb = mt76_mcu_msg_alloc(mdev, NULL, sizeof(*req) + sreq->ie_len);
+	if (!skb)
+		return -ENOMEM;
+
+	mvif->scan_seq_num = (mvif->scan_seq_num + 1) & 0x7f;
+
+	req = (struct mt76_connac_sched_scan_req *)skb_put(skb, sizeof(*req));
+	req->version = 1;
+	req->seq_num = mvif->scan_seq_num | ext_phy << 7;
+
+	if (sreq->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
+		get_random_mask_addr(req->random_mac, sreq->mac_addr,
+				     sreq->mac_addr_mask);
+		req->scan_func = 1;
+	}
+
+	req->ssids_num = sreq->n_ssids;
+	for (i = 0; i < req->ssids_num; i++) {
+		ssid = &sreq->ssids[i];
+		memcpy(req->ssids[i].ssid, ssid->ssid, ssid->ssid_len);
+		req->ssids[i].ssid_len = cpu_to_le32(ssid->ssid_len);
+	}
+
+	req->match_num = sreq->n_match_sets;
+	for (i = 0; i < req->match_num; i++) {
+		match = &sreq->match_sets[i];
+		memcpy(req->match[i].ssid, match->ssid.ssid,
+		       match->ssid.ssid_len);
+		req->match[i].rssi_th = cpu_to_le32(match->rssi_thold);
+		req->match[i].ssid_len = match->ssid.ssid_len;
+	}
+
+	req->channel_type = sreq->n_channels ? 4 : 0;
+	req->channels_num = min_t(u8, sreq->n_channels, 64);
+	for (i = 0; i < req->channels_num; i++) {
+		chan = &req->channels[i];
+		chan->band = scan_list[i]->band == NL80211_BAND_2GHZ ? 1 : 2;
+		chan->channel_num = scan_list[i]->hw_value;
+	}
+
+	req->intervals_num = sreq->n_scan_plans;
+	for (i = 0; i < req->intervals_num; i++)
+		req->intervals[i] = cpu_to_le16(sreq->scan_plans[i].interval);
+
+	if (sreq->ie_len > 0) {
+		req->ie_len = cpu_to_le16(sreq->ie_len);
+		memcpy(skb_put(skb, sreq->ie_len), sreq->ie, sreq->ie_len);
+	}
+
+	return mt76_mcu_skb_send_msg(mdev, skb, MCU_CMD_SCHED_SCAN_REQ, false);
+}
+EXPORT_SYMBOL_GPL(mt76_connac_mcu_sched_scan_req);
+
+int mt76_connac_mcu_sched_scan_enable(struct mt76_phy *phy,
+				      struct ieee80211_vif *vif,
+				      bool enable)
+{
+	struct {
+		u8 active; /* 0: enabled 1: disabled */
+		u8 rsv[3];
+	} __packed req = {
+		.active = !enable,
+	};
+
+	if (enable)
+		set_bit(MT76_HW_SCHED_SCANNING, &phy->state);
+	else
+		clear_bit(MT76_HW_SCHED_SCANNING, &phy->state);
+
+	return mt76_mcu_send_msg(phy->dev, MCU_CMD_SCHED_SCAN_ENABLE, &req,
+				 sizeof(req), false);
+}
+EXPORT_SYMBOL_GPL(mt76_connac_mcu_sched_scan_enable);
+
 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo@kernel.org>");
 MODULE_LICENSE("Dual BSD/GPL");