qcacmn: Add a dispatcher API to determine if RCAC is supported

Add a dispatcher API ucfg_dfs_is_agile_rcac_enabled() to determine
if RCAC is supported for the given pdev.
Change the prototype of dfs_get_rcac_enable() to store rcac
config in a bool datatype.
Also, do a structure copy of ch_params of RCAC channel in
utils_dfs_get_rcac_channel().

CRs-Fixed: 2679975
Change-Id: I4b033463fc8111144bfffd3bb7e7d2bef6568c46

umac/dfs/dispatcher/inc/wlan_dfs_ucfg_api.h

@@ -623,11 +623,11 @@ ucfg_dfs_set_rcac_enable(struct wlan_objmgr_pdev *pdev,
  */
 #ifdef QCA_SUPPORT_ADFS_RCAC
 QDF_STATUS ucfg_dfs_get_rcac_enable(struct wlan_objmgr_pdev *pdev,
-				    uint8_t *rcac_en);
+				    bool *rcac_en);
 #else
 static inline QDF_STATUS
 ucfg_dfs_get_rcac_enable(struct wlan_objmgr_pdev *pdev,
-			 uint8_t *rcac_en)
+			 bool *rcac_en)
 {
 	return QDF_STATUS_SUCCESS;
 }
@@ -669,4 +669,27 @@ ucfg_dfs_get_rcac_freq(struct wlan_objmgr_pdev *pdev,
 }
 #endif
 
+/**
+ * ucfg_dfs_is_agile_rcac_enabled() - Determine if Rolling CAC is supported
+ * or not.
+ * @pdev: Pointer to struct wlan_objmgr_pdev.
+ *
+ * Following are the conditions needed to assertain that rolling CAC
+ * is enabled:
+ * 1. DFS domain of the PDEV must be FCC or MKK.
+ * 2. User has enabled Rolling CAC configuration.
+ * 3. FW capability to support ADFS.
+ *
+ * Return: True if RCAC support is enabled, false otherwise.
+ */
+#ifdef QCA_SUPPORT_ADFS_RCAC
+bool ucfg_dfs_is_agile_rcac_enabled(struct wlan_objmgr_pdev *pdev);
+#else
+static inline bool
+ucfg_dfs_is_agile_rcac_enabled(struct wlan_objmgr_pdev *pdev)
+{
+	return false;
+}
+#endif
+
 #endif /* _WLAN_DFS_UCFG_API_H_ */

umac/dfs/dispatcher/src/wlan_dfs_ucfg_api.c

@@ -469,7 +469,7 @@ QDF_STATUS ucfg_dfs_set_rcac_enable(struct wlan_objmgr_pdev *pdev,
 qdf_export_symbol(ucfg_dfs_set_rcac_enable);
 
 QDF_STATUS ucfg_dfs_get_rcac_enable(struct wlan_objmgr_pdev *pdev,
-				    uint8_t *rcac_en)
+				    bool *rcac_en)
 {
 	struct wlan_dfs *dfs;
 
@@ -521,4 +521,19 @@ QDF_STATUS ucfg_dfs_get_rcac_freq(struct wlan_objmgr_pdev *pdev,
 }
 
 qdf_export_symbol(ucfg_dfs_get_rcac_freq);
+
+bool ucfg_dfs_is_agile_rcac_enabled(struct wlan_objmgr_pdev *pdev)
+{
+	struct wlan_dfs *dfs;
+
+	dfs = wlan_pdev_get_dfs_obj(pdev);
+	if (!dfs) {
+		dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "null dfs");
+		return false;
+	}
+
+	return dfs_is_agile_rcac_enabled(dfs);
+}
+
+qdf_export_symbol(ucfg_dfs_is_agile_rcac_enabled);
 #endif

umac/dfs/dispatcher/src/wlan_dfs_utils_api.c

@@ -1668,7 +1668,7 @@ QDF_STATUS utils_dfs_get_rcac_channel(struct wlan_objmgr_pdev *pdev,
 		return status;
 
 	*target_chan_freq = dfs->dfs_rcac_param.rcac_pri_freq;
-	chan_params = &dfs->dfs_rcac_param.rcac_ch_params;
+	*chan_params = dfs->dfs_rcac_param.rcac_ch_params;
 
 	return QDF_STATUS_SUCCESS;
 }