qcacmn: Find radar found frequency for 11BE Chipset

The "wmi_pdev_dfs_radar_detection_event" has an unused field "chan_freq".
It currently holds the value of primary 20MHz channel. With the
introduction of 11BE chipsets, this field is changed to hold the value of
the center frequency of the channel width on which the radar is found.

This new change is indicated by a wmi service
"wmi_is_radar_found_chan_freq_eq_center_freq".

For the Chipsets that support this service, the radar found frequency
can be calculated by mere addition of the fields "chan_freq" and
"freq_offset" field.

Change-Id: I8d2ce0023e2feb6e749ca8d7d5f547fafc0fdf98

target_if/dfs/src/target_if_dfs.c

@@ -213,6 +213,42 @@ static bool target_if_dfs_offload(struct wlan_objmgr_psoc *psoc)
 				   wmi_service_dfs_phyerr_offload);
 }
 
+#ifdef WLAN_FEATURE_11BE
+/**
+ * target_if_dfs_is_radar_found_chan_freq_eq_center_freq: Check whether the
+ * service of 'radar_found_chan_freq' representing the center frequency of the
+ * radar segment is supported or not. If the service is not enabled, then
+ * chan_freq will indicate the channel's primary 20MHz center.
+ */
+static bool
+target_if_dfs_is_radar_found_chan_freq_eq_center_freq(
+						struct wlan_objmgr_psoc *psoc)
+{
+	wmi_unified_t wmi_handle;
+
+	wmi_handle = get_wmi_unified_hdl_from_psoc(psoc);
+	if (!wmi_handle) {
+		target_if_err("null wmi_handle");
+		return false;
+	}
+
+	/*
+	 * Uncomment the following service as soon as it is ready.
+	 *
+	 * return wmi_service_enabled(wmi_handle,
+	 * wmi_is_radar_found_chan_freq_eq_center_freq);
+	 */
+	return false;
+}
+#else
+static bool
+target_if_dfs_is_radar_found_chan_freq_eq_center_freq(
+						struct wlan_objmgr_psoc *psoc)
+{
+	return false;
+}
+#endif
+
 static QDF_STATUS target_if_dfs_get_target_type(struct wlan_objmgr_pdev *pdev,
 						uint32_t *target_type)
 {
@@ -402,6 +438,8 @@ QDF_STATUS target_if_register_dfs_tx_ops(struct wlan_lmac_if_tx_ops *tx_ops)
 	dfs_tx_ops->dfs_send_avg_radar_params_to_fw =
 		&target_if_dfs_send_avg_params_to_fw;
 	dfs_tx_ops->dfs_is_tgt_offload = &target_if_dfs_offload;
+	dfs_tx_ops->dfs_is_tgt_radar_found_chan_freq_eq_center_freq =
+		&target_if_dfs_is_radar_found_chan_freq_eq_center_freq;
 
 	dfs_tx_ops->dfs_send_usenol_pdev_param =
 		&target_send_usenol_pdev_param;

umac/dfs/core/src/dfs.h

@@ -1056,6 +1056,9 @@ struct dfs_rcac_params {
  * @dfs_cac_started_chan:            CAC started channel.
  * @dfs_pdev_obj:                    DFS pdev object.
  * @dfs_is_offload_enabled:          Set if DFS offload enabled.
+ * @dfs_is_radar_found_chan_freq_eq_center_freq:
+ *                                   Set if chan_freq parameter of the radar
+ *                                   found wmi event indicates channel center.
  * @dfs_agile_precac_freq_mhz:       Freq in MHZ configured on Agile DFS engine.
  * @dfs_use_nol:                     Use the NOL when radar found(default: TRUE)
  * @dfs_nol_lock:                    Lock to protect nol list.
@@ -1247,6 +1250,7 @@ struct wlan_dfs {
 	uint16_t       dfs_agile_precac_freq_mhz;
 #endif
 	bool           dfs_is_offload_enabled;
+	bool           dfs_is_radar_found_chan_freq_eq_center_freq;
 	int            dfs_use_nol;
 	qdf_spinlock_t dfs_nol_lock;
 	uint16_t tx_leakage_threshold;

umac/dfs/core/src/misc/dfs_process_radar_found_ind.c

@@ -320,6 +320,14 @@ dfs_compute_radar_found_cfreq(struct wlan_dfs *dfs,
 {
 	struct dfs_channel *curchan = dfs->dfs_curchan;
 
+	/* In case of 11BE Chipsets, radar found center frequency is
+	 * directly obtained from WMI.
+	 */
+	if (dfs->dfs_is_radar_found_chan_freq_eq_center_freq) {
+		*freq_center = radar_found->chan_freq;
+		return;
+	}
+
 	/* Radar found on agile detector ID.
 	 * Applicable to chips that have a separate agile radar detector
 	 * engine.

umac/dfs/dispatcher/src/wlan_dfs_init_deinit_api.c

@@ -471,6 +471,20 @@ QDF_STATUS wlan_dfs_pdev_obj_create_notification(struct wlan_objmgr_pdev *pdev,
 	dfs->dfs_is_offload_enabled = dfs_tx_ops->dfs_is_tgt_offload(psoc);
 	dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs_offload %d",
 		 dfs->dfs_is_offload_enabled);
+
+	if (!dfs_tx_ops->dfs_is_tgt_radar_found_chan_freq_eq_center_freq) {
+		dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS,
+			"dfs_is_radar_found_chan_freq_eq_center_freq is null");
+		dfs_destroy_object(dfs);
+		return QDF_STATUS_E_FAILURE;
+	}
+
+	dfs->dfs_is_radar_found_chan_freq_eq_center_freq =
+	    dfs_tx_ops->dfs_is_tgt_radar_found_chan_freq_eq_center_freq(psoc);
+	dfs_info(dfs, WLAN_DEBUG_DFS,
+		 "dfs_is_radar_found_chan_freq_eq_center_freq %d",
+		 dfs->dfs_is_radar_found_chan_freq_eq_center_freq);
+
 	dfs_soc_obj = wlan_objmgr_psoc_get_comp_private_obj(psoc,
 							    WLAN_UMAC_COMP_DFS);
 	dfs->dfs_soc_obj = dfs_soc_obj;

umac/global_umac_dispatcher/lmac_if/inc/wlan_lmac_if_def.h

@@ -1028,6 +1028,10 @@ struct wlan_lmac_if_reg_tx_ops {
  * @dfs_ocac_abort_cmd:                 Send Off-Channel CAC abort command.
  * @dfs_is_pdev_5ghz:                   Check if the given pdev is 5GHz.
  * @dfs_set_phyerr_filter_offload:      Config phyerr filter offload.
+ * @dfs_is_tgt_radar_found_chan_freq_eq_center_freq:
+ *                                      Check if chan_freq parameter of the
+ *                                      radar found wmi event points to channel
+ *                                      center.
  * @dfs_send_offload_enable_cmd:        Send dfs offload enable command to fw.
  * @dfs_host_dfs_check_support:         To check Host DFS confirmation feature
  *                                      support.
@@ -1075,6 +1079,8 @@ struct wlan_lmac_if_dfs_tx_ops {
 			struct wlan_objmgr_pdev *pdev,
 			bool dfs_phyerr_filter_offload);
 	bool (*dfs_is_tgt_offload)(struct wlan_objmgr_psoc *psoc);
+	bool (*dfs_is_tgt_radar_found_chan_freq_eq_center_freq)
+		 (struct wlan_objmgr_psoc *psoc);
 	QDF_STATUS (*dfs_send_offload_enable_cmd)(
 			struct wlan_objmgr_pdev *pdev,
 			bool enable);