From: Sean Wang <sean.wang@xxxxxxxxxxxx>
introduce schedule scan to control mt7921 firmware to do background scan in
defined plan to see if the matched SSID is available.
Co-developed-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
Co-developed-by: Soul Huang <Soul.Huang@xxxxxxxxxxxx>
Signed-off-by: Soul Huang <Soul.Huang@xxxxxxxxxxxx>
Signed-off-by: Sean Wang <sean.wang@xxxxxxxxxxxx>
---
.../net/wireless/mediatek/mt76/mt7921/init.c | 5 ++
.../net/wireless/mediatek/mt76/mt7921/main.c | 38 +++++++++
.../net/wireless/mediatek/mt76/mt7921/mcu.c | 83 +++++++++++++++++++
.../net/wireless/mediatek/mt76/mt7921/mcu.h | 20 +++++
.../wireless/mediatek/mt76/mt7921/mt7921.h | 9 ++
5 files changed, 155 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
index 446f76bbfd21..7ec89bf96c80 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c
@@ -70,6 +70,11 @@ mt7921_init_wiphy(struct ieee80211_hw *hw)
wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
wiphy->max_scan_ie_len = MT7921_SCAN_IE_LEN;
wiphy->max_scan_ssids = 4;
+ wiphy->max_sched_scan_plan_interval = MT7921_MAX_SCHED_SCAN_INTERVAL;
+ wiphy->max_sched_scan_ie_len = IEEE80211_MAX_DATA_LEN;
+ wiphy->max_sched_scan_ssids = MT7921_MAX_SCHED_SCAN_SSID;
+ wiphy->max_match_sets = MT7921_MAX_SCAN_MATCH;
+ wiphy->max_sched_scan_reqs = 1;
wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/main.c b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
index b962328008f2..3d906f7ccee9 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/main.c
@@ -864,6 +864,42 @@ mt7921_cancel_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
mutex_unlock(&dev->mt76.mutex);
}
+static int
+mt7921_start_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct cfg80211_sched_scan_request *req,
+ struct ieee80211_scan_ies *ies)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt76_phy *mphy = hw->priv;
+ int err;
+
+ mutex_lock(&dev->mt76.mutex);
+
+ err = mt7921_mcu_sched_scan_req(mphy->priv, vif, req);
+ if (err < 0)
+ goto out;
+
+ err = mt7921_mcu_sched_scan_enable(mphy->priv, vif, true);
+out:
+ mutex_unlock(&dev->mt76.mutex);
+
+ return err;
+}
+
+static int
+mt7921_stop_sched_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+ struct mt7921_dev *dev = mt7921_hw_dev(hw);
+ struct mt76_phy *mphy = hw->priv;
+ int err;
+
+ mutex_lock(&dev->mt76.mutex);
+ err = mt7921_mcu_sched_scan_enable(mphy->priv, vif, false);
+ mutex_unlock(&dev->mt76.mutex);
+
+ return err;
+}
+
static int
mt7921_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
{
@@ -927,4 +963,6 @@ const struct ieee80211_ops mt7921_ops = {
.set_coverage_class = mt7921_set_coverage_class,
.hw_scan = mt7921_hw_scan,
.cancel_hw_scan = mt7921_cancel_hw_scan,
+ .sched_scan_start = mt7921_start_sched_scan,
+ .sched_scan_stop = mt7921_stop_sched_scan,
};
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
index b4f7718c365f..3cd2d29f1e29 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
@@ -2417,6 +2417,89 @@ int mt7921_mcu_cancel_hw_scan(struct mt7921_phy *phy,
sizeof(req), false);
}
+int mt7921_mcu_sched_scan_req(struct mt7921_phy *phy,
+ struct ieee80211_vif *vif,
+ struct cfg80211_sched_scan_request *sreq)
+{
+ struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
+ struct ieee80211_channel **scan_list = sreq->channels;
+ struct mt7921_dev *dev = phy->dev;
+ struct mt7921_mcu_scan_channel *chan;
+ struct mt7921_sched_scan_req *req;
+ struct cfg80211_match_set *match;
+ struct cfg80211_ssid *ssid;
+ struct sk_buff *skb;
+ int i;
+
+ skb = mt76_mcu_msg_alloc(&dev->mt76, NULL,
+ sizeof(*req) + sreq->ie_len);
+ if (!skb)
+ return -ENOMEM;
+
+ mvif->scan_seq_num = (mvif->scan_seq_num + 1) & 0x7f;
+
+ req = (struct mt7921_sched_scan_req *)skb_put(skb, sizeof(*req));
+ req->version = 1;
+ req->seq_num = mvif->scan_seq_num;
+
+ 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(&dev->mt76, skb, MCU_CMD_SCHED_SCAN_REQ,
+ false);
+}
+
+int mt7921_mcu_sched_scan_enable(struct mt7921_phy *phy,
+ struct ieee80211_vif *vif,
+ bool enable)
+{
+ struct mt7921_dev *dev = phy->dev;
+ struct {
+ u8 active; /* 0: enabled 1: disabled */
+ u8 rsv[3];
+ } __packed req = {
+ .active = !enable,
+ };
+
+ if (enable)
+ set_bit(MT76_HW_SCHED_SCANNING, &phy->mt76->state);
+ else
+ clear_bit(MT76_HW_SCHED_SCANNING, &phy->mt76->state);
+
+ return mt76_mcu_send_msg(&dev->mt76, MCU_CMD_SCHED_SCAN_ENABLE, &req,
+ sizeof(req), false);
+}
+
u32 mt7921_get_wtbl_info(struct mt7921_dev *dev, u16 wlan_idx)
{
struct mt7921_mcu_wlan_info wtbl_info = {
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
index 96eecea22d94..6894b44ff62d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.h
@@ -879,6 +879,26 @@ struct mt7921_hw_scan_done {
__le32 beacon_5g_num;
} __packed;
+struct mt7921_sched_scan_req {
+ u8 version;
+ u8 seq_num;
+ u8 stop_on_match;
+ u8 ssids_num;
+ u8 match_num;
+ u8 pad;
+ __le16 ie_len;
+ struct mt7921_mcu_scan_ssid ssids[MT7921_MAX_SCHED_SCAN_SSID];
+ struct mt7921_mcu_scan_match match[MT7921_MAX_SCAN_MATCH];
+ u8 channel_type;
+ u8 channels_num;
+ u8 intervals_num;
+ u8 scan_func;
+ struct mt7921_mcu_scan_channel channels[64];
+ __le16 intervals[MT7921_MAX_SCHED_SCAN_INTERVAL];
+ u8 bss_idx;
+ u8 pad2[64];
+} __packed;
+
struct mt7921_mcu_bss_event {
u8 bss_idx;
u8 is_absent;
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
index a2eff533e536..114c63cf78f9 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
@@ -44,6 +44,9 @@
#define MT7921_SKU_TABLE_SIZE (MT7921_SKU_RATE_NUM + 1)
#define MT7921_SCAN_IE_LEN 600
+#define MT7921_MAX_SCHED_SCAN_INTERVAL 10
+#define MT7921_MAX_SCHED_SCAN_SSID 10
+#define MT7921_MAX_SCAN_MATCH 16
struct mt7921_vif;
struct mt7921_sta;
@@ -347,6 +350,12 @@ void mt7921_scan_work(struct work_struct *work);
int mt7921_mcu_set_channel_domain(struct mt7921_phy *phy);
int mt7921_mcu_hw_scan(struct mt7921_phy *phy, struct ieee80211_vif *vif,
struct ieee80211_scan_request *scan_req);
+int mt7921_mcu_sched_scan_req(struct mt7921_phy *phy,
+ struct ieee80211_vif *vif,
+ struct cfg80211_sched_scan_request *sreq);
+int mt7921_mcu_sched_scan_enable(struct mt7921_phy *phy,
+ struct ieee80211_vif *vif,
+ bool enable);
int mt7921_mcu_cancel_hw_scan(struct mt7921_phy *phy,
struct ieee80211_vif *vif);
u32 mt7921_get_wtbl_info(struct mt7921_dev *dev, u16 wlan_idx);
--
2.25.1
