[PATCH v2 11/13] qtnfmac: add support for scan dwell time configuration

[Sergey Matyukevich]

Firmware supports scan dwell time tuning for various types of scans.
Enable support for this feature:
- advertise capability to configure channel dwell time to host
- pass scan dwell parameters to wireless card in scan request

Signed-off-by: Sergey Matyukevich <sergey.matyukevich...@quantenna.com>
---
 drivers/net/wireless/quantenna/qtnfmac/cfg80211.c | 4 ++++
 drivers/net/wireless/quantenna/qtnfmac/commands.c | 9 +++++++++
 drivers/net/wireless/quantenna/qtnfmac/qlink.h    | 2 ++
 3 files changed, 15 insertions(+)

diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c 
b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
index 9845cf287118..18179965bd38 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
@@ -1101,6 +1101,10 @@ int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, 
struct qtnf_wmac *mac)
        if (hw_info->hw_capab & QLINK_HW_CAPAB_DFS_OFFLOAD)
                wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_DFS_OFFLOAD);
 
+       if (hw_info->hw_capab & QLINK_HW_CAPAB_SCAN_DWELL)
+               wiphy_ext_feature_set(wiphy,
+                                     NL80211_EXT_FEATURE_SET_SCAN_DWELL);
+
        wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
                                    NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2;
 
diff --git a/drivers/net/wireless/quantenna/qtnfmac/commands.c 
b/drivers/net/wireless/quantenna/qtnfmac/commands.c
index 8fb15cbf5005..bfdc1ad30c13 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/commands.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/commands.c
@@ -2203,6 +2203,15 @@ int qtnf_cmd_send_scan(struct qtnf_wmac *mac)
                qtnf_cmd_skb_put_tlv_tag(cmd_skb, QTN_TLV_ID_SCAN_FLUSH);
        }
 
+       if (scan_req->duration) {
+               pr_debug("MAC%u: %s scan duration %u\n", mac->macid,
+                        scan_req->duration_mandatory ? "mandatory" : "max",
+                        scan_req->duration);
+
+               qtnf_cmd_skb_put_tlv_u16(cmd_skb, QTN_TLV_ID_SCAN_DWELL,
+                                        scan_req->duration);
+       }
+
        ret = qtnf_cmd_send(mac->bus, cmd_skb);
        if (ret)
                goto out;
diff --git a/drivers/net/wireless/quantenna/qtnfmac/qlink.h 
b/drivers/net/wireless/quantenna/qtnfmac/qlink.h
index 699157100309..8d62addea895 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/qlink.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/qlink.h
@@ -80,6 +80,7 @@ enum qlink_hw_capab {
        QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR     = BIT(3),
        QLINK_HW_CAPAB_PWR_MGMT                 = BIT(4),
        QLINK_HW_CAPAB_OBSS_SCAN                = BIT(5),
+       QLINK_HW_CAPAB_SCAN_DWELL               = BIT(6),
 };
 
 enum qlink_iface_type {
@@ -1152,6 +1153,7 @@ enum qlink_tlv_id {
        QTN_TLV_ID_WOWLAN_CAPAB         = 0x0410,
        QTN_TLV_ID_WOWLAN_PATTERN       = 0x0411,
        QTN_TLV_ID_SCAN_FLUSH           = 0x0412,
+       QTN_TLV_ID_SCAN_DWELL           = 0x0413,
 };
 
 struct qlink_tlv_hdr {
-- 
2.11.0