qcacld-3.0: Feature flag for Wlan Latency Manager support

WLAN Latency Manager support is one of the capabilities that is sent
along with the service bits by firmware. Currently, driver is not
exposing this feature to the user space.

Create and add support for a feature flag to expose this feature to the
userspace.

Change-Id: Ica8213bdaeb32c7be01b6a71a7d8b7a32dc8611b
CRs-Fixed: 2363704

components/mlme/dispatcher/inc/wlan_mlme_ucfg_api.h

@@ -3208,4 +3208,15 @@ QDF_STATUS ucfg_wlan_mlme_get_rrm_enabled(struct wlan_objmgr_psoc *psoc,
 {
 	return wlan_mlme_get_rrm_enabled(psoc, value);
 }
+
+/**
+ * ucfg_mlme_get_latency_enable() - Get the latency_enable
+ * @psoc: pointer to psoc object
+ * @value: Value that needs to be get from the caller
+ *
+ * Return: QDF Status
+ */
+QDF_STATUS
+ucfg_mlme_get_latency_enable(struct wlan_objmgr_psoc *psoc, bool *value);
+
 #endif /* _WLAN_MLME_UCFG_API_H_ */

components/mlme/dispatcher/src/wlan_mlme_ucfg_api.c

@@ -1195,3 +1195,18 @@ ucfg_mlme_get_ap_random_bssid_enable(struct wlan_objmgr_psoc *psoc,
 	*value = mlme_obj->cfg.sap_cfg.ap_random_bssid_enable;
 	return QDF_STATUS_SUCCESS;
 }
+
+QDF_STATUS
+ucfg_mlme_get_latency_enable(struct wlan_objmgr_psoc *psoc, bool *value)
+{
+	struct wlan_mlme_psoc_obj *mlme_obj;
+
+	mlme_obj = mlme_get_psoc_obj(psoc);
+	if (!mlme_obj) {
+		mlme_err("mlme obj null");
+		return QDF_STATUS_E_INVAL;
+	}
+
+	*value = mlme_obj->cfg.wlm_config.latency_enable;
+	return QDF_STATUS_SUCCESS;
+}

core/hdd/src/wlan_hdd_cfg80211.c

@@ -3082,6 +3082,29 @@ void wlan_hdd_cfg80211_acs_ch_select_evt(struct hdd_adapter *adapter)
 	}
 }
 
+/**
+ * hdd_is_wlm_latency_manager_supported - Checks if WLM Latency manager is
+ *                                        supported
+ * @hdd_ctx: The HDD context
+ *
+ * Return: True if supported, false otherwise
+ */
+static inline
+bool hdd_is_wlm_latency_manager_supported(struct hdd_context *hdd_ctx)
+{
+	bool latency_enable;
+
+	if (QDF_IS_STATUS_ERROR(ucfg_mlme_get_latency_enable
+				(hdd_ctx->psoc, &latency_enable)))
+		return false;
+
+	if (latency_enable &&
+	    sme_is_feature_supported_by_fw(VDEV_LATENCY_CONFIG))
+		return true;
+	else
+		return false;
+}
+
 static int
 __wlan_hdd_cfg80211_get_supported_features(struct wiphy *wiphy,
 					 struct wireless_dev *wdev,
@@ -3178,6 +3201,9 @@ __wlan_hdd_cfg80211_get_supported_features(struct wiphy *wiphy,
 	if (hdd_scan_random_mac_addr_supported())
 		fset |= WIFI_FEATURE_SCAN_RAND;
 
+	if (hdd_is_wlm_latency_manager_supported(hdd_ctx))
+		fset |= WIFI_FEATURE_SET_LATENCY_MODE;
+
 	skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, sizeof(fset) +
 						  NLMSG_HDRLEN);
 	if (!skb) {

core/hdd/src/wlan_hdd_cfg80211.h

@@ -192,6 +192,8 @@ typedef enum {
 #define WIFI_FEATURE_CONTROL_ROAMING    0x800000  /* Enable/Disable roaming */
 #define WIFI_FEATURE_IE_WHITELIST       0x1000000 /* Support Probe IE white listing */
 #define WIFI_FEATURE_SCAN_RAND          0x2000000 /* Support MAC & Probe Sequence Number randomization */
+#define WIFI_FEATURE_SET_LATENCY_MODE   0x40000000 /* Set latency mode */
+
 
 /* Support Tx Power Limit setting */
 #define WIFI_FEATURE_SET_TX_POWER_LIMIT 0x4000000

core/mac/src/include/sir_params.h

@@ -132,6 +132,7 @@ enum cap_bitmap {
 	ADVANCE_TDLS = 29,
 	TDLS_OFF_CHANNEL = 30,
 #endif
+	VDEV_LATENCY_CONFIG = 31,
 
 	/* MAX_FEATURE_SUPPORTED = 32 */
 };

core/wma/src/wma_main.c

@@ -4996,6 +4996,9 @@ static inline void wma_update_target_services(struct wmi_unified *wmi_handle,
 		cfg->obss_scan_offload = true;
 	if (wmi_service_enabled(wmi_handle, wmi_service_beacon_reception_stats))
 		cfg->bcn_reception_stats = true;
+
+	if (wmi_service_enabled(wmi_handle, wmi_service_vdev_latency_config))
+		g_fw_wlan_feat_caps |= (1 << VDEV_LATENCY_CONFIG);
 }
 
 /**