qcacmn: Add QDF API for DRV support

Add QDF API to check platform capability if DRV is supported or not.
Then component enables wow support based on it.

Change-Id: I9045b1982acfc4ed4cdce724b48430cb20e03274
CRs-Fixed: 2722639

qdf/inc/qdf_platform.h

@@ -255,5 +255,31 @@ void qdf_register_drv_connected_callback(qdf_is_drv_connected_callback
  */
 void qdf_check_state_before_panic(void);
 
+/**
+ * qdf_is_drv_supported_callback() - callback to query if drv is supported
+ *
+ * Return: true if drv is supported else false
+ */
+typedef bool (*qdf_is_drv_supported_callback)(void);
+
+/**
+ * qdf_is_drv_supported_callback() - API to check if drv is supported or not
+ *
+ * DRV is dynamic request voting using which fw can do page fault and
+ * bring in page back without apps wake up
+ *
+ * Return: true: if drv is supported
+ *	   false: if drv is not supported
+ */
+bool qdf_is_drv_supported(void);
+
+/**
+ * qdf_register_drv_supported_callback() - API to register drv supported cb
+ * @is_drv_supported: callback to query if drv is supported or not
+ *
+ * Return: none
+ */
+void qdf_register_drv_supported_callback(qdf_is_drv_supported_callback
+					 is_drv_supported);
 #endif /*_QDF_PLATFORM_H*/
 

qdf/src/qdf_platform.c

@@ -30,6 +30,7 @@ static qdf_is_driver_unloading_callback is_driver_unloading_cb;
 static qdf_is_recovering_callback	is_recovering_cb;
 static qdf_is_drv_connected_callback    is_drv_connected_cb;
 static qdf_wmi_send_over_qmi_callback _wmi_send_recv_qmi_cb;
+static qdf_is_drv_supported_callback    is_drv_supported_cb;
 
 void qdf_register_fw_down_callback(qdf_is_fw_down_callback is_fw_down)
 {
@@ -175,3 +176,22 @@ void qdf_check_state_before_panic(void)
 
 qdf_export_symbol(qdf_check_state_before_panic);
 
+void qdf_register_drv_supported_callback(qdf_is_drv_supported_callback
+					 is_drv_supported)
+{
+	is_drv_supported_cb = is_drv_supported;
+}
+
+qdf_export_symbol(qdf_register_drv_supported_callback);
+
+bool qdf_is_drv_supported(void)
+{
+	if (!is_drv_supported_cb) {
+		qdf_err("drv supported callback is not registered");
+		return false;
+	}
+
+	return is_drv_supported_cb();
+}
+
+qdf_export_symbol(qdf_is_drv_supported);