include:bluetooth:add API to check if device is connected

Signed-off-by: Ajay Bhargav <[email protected]>

Author: ajaybhargav

include/hw/bluetooth.h

@@ -175,6 +175,13 @@ int bt_device_unpairall(void);
  */
 void bt_print_devlist(int disp_type);
 
+/**
+ * @brief Check if bluetooth host is connected to a device
+ * 
+ * @return int 1 if connected, 0 if not connected
+ */
+int bt_device_isconnected(void);
+
 /**
  * Install "BTMAN" command to manage Bluetooth controller
  * from command line interface.

include/hw/bluetooth_le.h

@@ -5,8 +5,8 @@
  * 
  */
 
-#ifndef INC_AUDIO_H_
-#define INC_AUDIO_H_
+#ifndef INC_BLUETOOTHLE_H_
+#define INC_BLUETOOTHLE_H_
 
 #include <stdint.h>