qcacld-3.0: Add vendor cmd to support antenna diversity

qcacld-2.0 to qcacld-3.0 propagation

Add qca_wlan_vendor_config attr to config antenna diversity.
Add vendor subcmd QCA_NL80211_VENDOR_SUBCMD_GET_CHAIN_RSSI
to get chain rssi value.

Change-Id: I75c4c8016b15772b0c52be91e446f69580475496
CRs-fixed: 1071075

core/sme/inc/sme_api.h

@@ -1665,4 +1665,21 @@ QDF_STATUS sme_get_peer_info_ext(tHalHandle hal,
 void sme_set_5g_band_pref(tHalHandle hal_handle,
 			  struct sme_5g_band_pref_params *pref_params);
 
+/**
+ * sme_get_chain_rssi() - Get chain rssi
+ * @hal: Global HAL handle
+ * @input: get chain rssi req params
+ * @callback: Callback function to be called with the result
+ * @context: Opaque context to be used by the caller to associate the
+ *   request with the response
+ *
+ * This function constructs the cds message and fill in message type,
+ * post the same to WDA.
+ *
+ * Return: QDF_STATUS enumeration
+ */
+QDF_STATUS sme_get_chain_rssi(tHalHandle hal,
+			      struct get_chain_rssi_req_params *input,
+			      get_chain_rssi_callback callback,
+			      void *context);
 #endif /* #if !defined( __SME_API_H ) */

core/sme/inc/sme_internal.h

@@ -160,6 +160,16 @@ typedef void (*sme_encrypt_decrypt_callback)(
 			void *context,
 			struct sir_encrypt_decrypt_rsp_params *response);
 
+/**
+ * typedef get_chain_rssi_callback - get chain rssi callback
+ * @context: Opaque context that the client can use to associate the
+ *    callback with the request
+ * @data: chain rssi result reported by firmware
+ */
+struct chain_rssi_result;
+typedef void (*get_chain_rssi_callback)(void *context,
+					struct chain_rssi_result *data);
+
 typedef struct tagSmeStruct {
 	eSmeState state;
 	qdf_mutex_t lkSmeGlobalLock;
@@ -258,6 +268,8 @@ typedef struct tagSmeStruct {
 	void (*chip_power_save_fail_cb)(void *,
 			struct chip_pwr_save_fail_detected_params *);
 	void (*bt_activity_info_cb)(void *context, uint32_t bt_activity);
+	get_chain_rssi_callback get_chain_rssi_cb;
+	void *get_chain_rssi_context;
 } tSmeStruct, *tpSmeStruct;
 
 #endif /* #if !defined( __SMEINTERNAL_H ) */