drivers/wifi: Add files skeleton for adding WiFi drivers

This will help not to collide within drivers implementations and/or
avoid dependency from one driver to another one.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
diff --git a/drivers/CMakeLists.txt b/drivers/CMakeLists.txt
index 4cfb68b..3254d6c 100644
--- a/drivers/CMakeLists.txt
+++ b/drivers/CMakeLists.txt
@@ -24,6 +24,7 @@
 add_subdirectory_if_kconfig(spi)
 add_subdirectory_if_kconfig(usb)
 add_subdirectory_if_kconfig(watchdog)
+add_subdirectory_if_kconfig(wifi)
 
 add_subdirectory_ifdef(CONFIG_AIO_COMPARATOR   aio)
 add_subdirectory_ifdef(CONFIG_BT               bluetooth)
diff --git a/drivers/Kconfig b/drivers/Kconfig
index 0cd0c65..a77cce4 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -73,4 +73,6 @@
 
 source "drivers/led_strip/Kconfig"
 
+source "drivers/wifi/Kconfig"
+
 endmenu
diff --git a/drivers/wifi/Kconfig b/drivers/wifi/Kconfig
new file mode 100644
index 0000000..91a81ce
--- /dev/null
+++ b/drivers/wifi/Kconfig
@@ -0,0 +1,39 @@
+# Kconfig - WiFi drivers configuration options
+
+#
+# Copyright (c) 2017 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+menuconfig WIFI
+	bool "add support for WiFi Drivers"
+	default n
+
+if WIFI
+
+config SYS_LOG_WIFI_LEVEL
+	int "WiFi driver log level"
+	depends on SYS_LOG
+	default 0
+	range 0 4
+	help
+	  Sets log level for WiFi Device Drivers.
+	  Levels are:
+	  0 OFF, do not write
+	  1 ERROR, only write SYS_LOG_ERR
+	  2 WARNING, write SYS_LOG_WRN in addition to previous level
+	  3 INFO, write SYS_LOG_INF in addition to previous levels
+	  4 DEBUG, write SYS_LOG_DBG in addition to previous levels
+
+config WIFI_INIT_PRIORITY
+	int "WiFi driver init priority"
+	depends on WIFI
+	default 80
+	help
+	  WiFi device driver initialization priority.
+	  Do not mess with it unless you know what you are doing.
+	  Note that the priority needs to be lower than the net stack
+	  so that it can start before the networking sub-system.
+
+endif # WIFI