r g / SX1276GenericLib-us915

Dependents:   DISCO-L072CZ-LRWAN1_LoRa_PingPong

Fork of SX1276GenericLib by Helmut Tschemernjak

Files at this revision

API Documentation at this revision

Comitter:
Helmut Tschemernjak
Date:
Tue Jul 11 13:32:34 2017 +0200
Parent:
64:b721e6ab656a
Child:
66:fbb2da34bd9a
Commit message:
Added Arduino Support, it still needs further testing

Changed in this revision

LoRa_TODO.txt Show annotated file Show diff for this revision Revisions of this file
radio/radio.h Show annotated file Show diff for this revision Revisions of this file
sx1276/Callback-A.h Show annotated file Show diff for this revision Revisions of this file
sx1276/arduino-mbed.cpp Show annotated file Show diff for this revision Revisions of this file
sx1276/arduino-mbed.h Show annotated file Show diff for this revision Revisions of this file
sx1276/sx1276-arduino-hal.cpp Show diff for this revision Revisions of this file
sx1276/sx1276-arduino-hal.h Show diff for this revision Revisions of this file
sx1276/sx1276-mbed-hal.cpp Show annotated file Show diff for this revision Revisions of this file
sx1276/sx1276-mbed-hal.h Show annotated file Show diff for this revision Revisions of this file
sx1276/sx1276.h Show annotated file Show diff for this revision Revisions of this file
--- a/LoRa_TODO.txt	Fri Jun 30 16:08:05 2017 +0200
+++ b/LoRa_TODO.txt	Tue Jul 11 13:32:34 2017 +0200
@@ -1,10 +1,9 @@
-
+
 Move finished tasks to Done section:
 
-TODOs:
-- add support for Arduino - add sx1276-Arduino-hal.h/cpp
-- add support for Linux - add sx1276-Linux-hal.h/cpp
-- Add support for Cad detection before sending a packet
+TODOs:
+- add support for Arduino - add sx1276-Arduino-hal.h/cpp
+- add support for Linux - add sx1276-Linux-hal.h/cpp
 - Add support to provide the send/receive packet buffer,
   no need to allocate packet data in the sx1276 driver. Can be provided
   Rx/Tx parameters, this avoids double memory usage
@@ -14,22 +13,25 @@
 - It is a little bit strange that RX/TX/Cad Timeout Timer calling the
   some handler OnTimeoutIrq. Maybe we just need a single timer, or 
   it is a good idea to split the OnTimeoutIrq function into separate
-  callbacks for RX/TX/Cad timeouts
+  callbacks for RX/TX/Cad timeouts
 - Test if the SX1276 timeouts. Does rx/tx/sync really uses three different
   timers or just one at a time.
-- Add API to set the LNA gain
+- Add API to set the LNA gain
+- Registering a new Timeout function within the Interrupt is not malloc save.
+  This is a major race condition problem.
+ 
 
-
-Done:
+
+Done:
 - Started a Generic SX1276 driver to support all SX1276 modules (May-2017 Helmut)
-- Migrated typedefs code into sx1276.h (7-May-2017 Helmut)
-- Migrated enum code into sx1276.h/radio.h (7-May-2017 Helmut)
-- Verify the Murata ANT Switch code
-- MURATA PA_BOOST case,is _antSwitchTXBoost right? (Same as STM sample code)
+- Migrated typedefs code into sx1276.h (7-May-2017 Helmut)
+- Migrated enum code into sx1276.h/radio.h (7-May-2017 Helmut)
+- Verify the Murata ANT Switch code
+- MURATA PA_BOOST case,is _antSwitchTXBoost right? (Same as STM sample code)
 - Check of the MURATA TCXO config is correct (implemented, check JP9 on STM L0 board)
-- Make the timers more generic and move the OS code into the HAL layer. (May 2017 Helmut)
+- Make the timers more generic and move the OS code into the HAL layer. (May 2017 Helmut)
 - Removed pull down on dio=-dio5 for L151 &LPC11U6X which make no sense to me. May 2017 Helmut
-- Added radio API support to receive the MaxMTUSize (May 2017 Helmut)
+- Added radio API support to receive the MaxMTUSize (May 2017 Helmut)
 - Added Send optional Send() parameter to include a header,
   this saves additional buffers. (May 2017 Helmut)
 - Added proper void * type from sending data, uint8_t * is not appropriate (May 2017 Helmut)
@@ -41,4 +43,7 @@
 - Made SetRfTxPower public to allow easily power TX changes (May 2017 Helmut)
 - Added userData and userThisPtr into the radio events, this allows to call C++ 
   functions and in can include a context via the userData
+- Add support for Cad detection before sending a packet, already done in higher 
+  level protocols
+- Added initial Arduino support, needs more testing/completion.
 
--- a/radio/radio.h	Fri Jun 30 16:08:05 2017 +0200
+++ b/radio/radio.h	Tue Jul 11 13:32:34 2017 +0200
@@ -15,8 +15,12 @@
 #ifndef __RADIO_H__
 #define __RADIO_H__
 
+#ifdef __MBED__
 #include "mbed.h"
-
+#endif
+#ifdef ARDUINO
+#include <arduino.h>
+#endif
 
 /*!
  * Radio driver internal state machine states definition
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sx1276/Callback-A.h	Tue Jul 11 13:32:34 2017 +0200
@@ -0,0 +1,4228 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2015 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifdef ARDUINO
+
+#ifndef MBED_CALLBACK_H
+#define MBED_CALLBACK_H
+
+
+#include <string.h>
+#include <stdint.h>
+#include <new>
+//#include "platform/mbed_assert.h"
+//#include "platform/mbed_toolchain.h"
+#ifdef ARDUINO
+#undef F
+#endif
+
+// namespace mbed {
+/** \addtogroup platform */
+
+
+/** Callback class based on template specialization
+ *
+ * @note Synchronization level: Not protected
+ * @ingroup platform
+ */
+template <typename F>
+class Callback;
+
+// Internal sfinae declarations
+//
+// These are used to eliminate overloads based on type attributes
+// 1. Does a function object have a call operator
+// 2. Does a function object fit in the available storage
+//
+// These eliminations are handled cleanly by the compiler and avoid
+// massive and misleading error messages when confronted with an
+// invalid type (or worse, runtime failures)
+namespace detail {
+    struct nil {};
+
+    template <bool B, typename R = nil>
+    struct enable_if { typedef R type; };
+
+    template <typename R>
+    struct enable_if<false, R> {};
+
+    template <typename M, M>
+    struct is_type {
+        static const bool value = true;
+    };
+}
+
+#define MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, M)                            \
+    typename detail::enable_if<                                             \
+            detail::is_type<M, &F::operator()>::value &&                    \
+            sizeof(F) <= sizeof(uintptr_t)                                  \
+        >::type = detail::nil()
+
+/** Callback class based on template specialization
+ *
+ * @note Synchronization level: Not protected
+ * @ingroup platform
+ */
+template <typename R>
+class Callback<R()> {
+public:
+    /** Create a Callback with a static function
+     *  @param func     Static function to attach
+     */
+    Callback(R (*func)() = 0) {
+        if (!func) {
+            _ops = 0;
+        } else {
+            generate(func);
+        }
+    }
+
+    /** Attach a Callback
+     *  @param func     The Callback to attach
+     */
+    Callback(const Callback<R()> &func) {
+        if (func._ops) {
+            func._ops->move(this, &func);
+        }
+        _ops = func._ops;
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(U *obj, R (T::*method)()) {
+        generate(method_context<T, R (T::*)()>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(const U *obj, R (T::*method)() const) {
+        generate(method_context<const T, R (T::*)() const>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(volatile U *obj, R (T::*method)() volatile) {
+        generate(method_context<volatile T, R (T::*)() volatile>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(const volatile U *obj, R (T::*method)() const volatile) {
+        generate(method_context<const volatile T, R (T::*)() const volatile>(obj, method));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(T*), U *arg) {
+        generate(function_context<R (*)(T*), T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(const T*), const U *arg) {
+        generate(function_context<R (*)(const T*), const T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(volatile T*), volatile U *arg) {
+        generate(function_context<R (*)(volatile T*), volatile T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(const volatile T*), const volatile U *arg) {
+        generate(function_context<R (*)(const volatile T*), const volatile T>(func, arg));
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)())) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(const F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)() const)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)() volatile)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(const volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)() const volatile)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(U *obj, R (*func)(T*)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(const U *obj, R (*func)(const T*)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(volatile U *obj, R (*func)(volatile T*)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(const volatile U *obj, R (*func)(const volatile T*)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Destroy a callback
+     */
+    ~Callback() {
+        if (_ops) {
+            _ops->dtor(this);
+        }
+    }
+
+    /** Attach a static function
+     *  @param func     Static function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    void attach(R (*func)()) {
+        this->~Callback();
+        new (this) Callback(func);
+    }
+
+    /** Attach a Callback
+     *  @param func     The Callback to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    void attach(const Callback<R()> &func) {
+        this->~Callback();
+        new (this) Callback(func);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(U *obj, R (T::*method)()) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(const U *obj, R (T::*method)() const) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(volatile U *obj, R (T::*method)() volatile) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(const volatile U *obj, R (T::*method)() const volatile) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(T*), U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(const T*), const U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(volatile T*), volatile U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(const volatile T*), const volatile U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a function object
+     *  @param f     Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)())) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f     Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(const F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)() const)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)() volatile)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(const volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)() const volatile)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(U *obj, R (*func)(T*)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(const U *obj, R (*func)(const T*)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(volatile U *obj, R (*func)(volatile T*)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(const volatile U *obj, R (*func)(const volatile T*)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Assign a callback
+     */
+    Callback &operator=(const Callback &that) {
+        if (this != &that) {
+            this->~Callback();
+            new (this) Callback(that);
+        }
+
+        return *this;
+    }
+
+    /** Call the attached function
+     */
+    R call() const {
+        return _ops->call(this);
+    }
+
+    /** Call the attached function
+     */
+    R operator()() const {
+        return call();
+    }
+
+    /** Test if function has been attached
+     */
+    operator bool() const {
+        return _ops;
+    }
+
+    /** Test for equality
+     */
+    friend bool operator==(const Callback &l, const Callback &r) {
+        return memcmp(&l, &r, sizeof(Callback)) == 0;
+    }
+
+    /** Test for inequality
+     */
+    friend bool operator!=(const Callback &l, const Callback &r) {
+        return !(l == r);
+    }
+
+    /** Static thunk for passing as C-style function
+     *  @param func Callback to call passed as void pointer
+     *  @return the value as determined by func which is of 
+     *      type and determined by the signiture of func
+     */
+    static R thunk(void *func) {
+        return static_cast<Callback*>(func)->call();
+    }
+
+private:
+    // Stored as pointer to function and pointer to optional object
+    // Function pointer is stored as union of possible function types
+    // to garuntee proper size and alignment
+    struct _class;
+    union {
+        void (*_staticfunc)();
+        void (*_boundfunc)(_class*);
+        void (_class::*_methodfunc)();
+    } _func;
+    void *_obj;
+
+    // Dynamically dispatched operations
+    const struct ops {
+        R (*call)(const void*);
+        void (*move)(void*, const void*);
+        void (*dtor)(void*);
+    } *_ops;
+
+    
+    // Generate operations for function object
+    template <typename F>
+    void generate(const F &f) {
+        static const ops ops = {
+            &Callback::function_call<F>,
+            &Callback::function_move<F>,
+            &Callback::function_dtor<F>,
+        };
+        //MBED_STATIC_ASSERT(sizeof(Callback) - sizeof(_ops) >= sizeof(F),
+        //        "Type F must not exceed the size of the Callback class");
+        new (this) F(f);
+        _ops = &ops;
+    }
+
+    // Function attributes
+    template <typename F>
+    static R function_call(const void *p) {
+        return (*(F*)p)();
+    }
+
+    template <typename F>
+    static void function_move(void *d, const void *p) {
+        new (d) F(*(F*)p);
+    }
+
+    template <typename F>
+    static void function_dtor(void *p) {
+        ((F*)p)->~F();
+    }
+
+    // Wrappers for functions with context
+    template <typename O, typename M>
+    struct method_context {
+        M method;
+        O *obj;
+
+        method_context(O *obj, M method)
+            : method(method), obj(obj) {}
+
+        R operator()() const {
+            return (obj->*method)();
+        }
+    };
+
+    template <typename F, typename A>
+    struct function_context {
+        F func;
+        A *arg;
+
+        function_context(F func, A *arg)
+            : func(func), arg(arg) {}
+
+        R operator()() const {
+            return func(arg);
+        }
+    };
+};
+
+/** Callback class based on template specialization
+ *
+ * @note Synchronization level: Not protected
+ * @ingroup platform
+ */
+template <typename R, typename A0>
+class Callback<R(A0)> {
+public:
+    /** Create a Callback with a static function
+     *  @param func     Static function to attach
+     */
+    Callback(R (*func)(A0) = 0) {
+        if (!func) {
+            _ops = 0;
+        } else {
+            generate(func);
+        }
+    }
+
+    /** Attach a Callback
+     *  @param func     The Callback to attach
+     */
+    Callback(const Callback<R(A0)> &func) {
+        if (func._ops) {
+            func._ops->move(this, &func);
+        }
+        _ops = func._ops;
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(U *obj, R (T::*method)(A0)) {
+        generate(method_context<T, R (T::*)(A0)>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(const U *obj, R (T::*method)(A0) const) {
+        generate(method_context<const T, R (T::*)(A0) const>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(volatile U *obj, R (T::*method)(A0) volatile) {
+        generate(method_context<volatile T, R (T::*)(A0) volatile>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(const volatile U *obj, R (T::*method)(A0) const volatile) {
+        generate(method_context<const volatile T, R (T::*)(A0) const volatile>(obj, method));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(T*, A0), U *arg) {
+        generate(function_context<R (*)(T*, A0), T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(const T*, A0), const U *arg) {
+        generate(function_context<R (*)(const T*, A0), const T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(volatile T*, A0), volatile U *arg) {
+        generate(function_context<R (*)(volatile T*, A0), volatile T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(const volatile T*, A0), const volatile U *arg) {
+        generate(function_context<R (*)(const volatile T*, A0), const volatile T>(func, arg));
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0))) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(const F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0) const)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0) volatile)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(const volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0) const volatile)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(U *obj, R (*func)(T*, A0)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(const U *obj, R (*func)(const T*, A0)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(volatile U *obj, R (*func)(volatile T*, A0)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(const volatile U *obj, R (*func)(const volatile T*, A0)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Destroy a callback
+     */
+    ~Callback() {
+        if (_ops) {
+            _ops->dtor(this);
+        }
+    }
+
+    /** Attach a static function
+     *  @param func     Static function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    void attach(R (*func)(A0)) {
+        this->~Callback();
+        new (this) Callback(func);
+    }
+
+    /** Attach a Callback
+     *  @param func     The Callback to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    void attach(const Callback<R(A0)> &func) {
+        this->~Callback();
+        new (this) Callback(func);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(U *obj, R (T::*method)(A0)) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(const U *obj, R (T::*method)(A0) const) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(volatile U *obj, R (T::*method)(A0) volatile) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(const volatile U *obj, R (T::*method)(A0) const volatile) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(T*, A0), U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(const T*, A0), const U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(volatile T*, A0), volatile U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(const volatile T*, A0), const volatile U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0))) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(const F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0) const)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0) volatile)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(const volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0) const volatile)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(U *obj, R (*func)(T*, A0)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(const U *obj, R (*func)(const T*, A0)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(volatile U *obj, R (*func)(volatile T*, A0)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(const volatile U *obj, R (*func)(const volatile T*, A0)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Assign a callback
+     */
+    Callback &operator=(const Callback &that) {
+        if (this != &that) {
+            this->~Callback();
+            new (this) Callback(that);
+        }
+
+        return *this;
+    }
+
+    /** Call the attached function
+     */
+    R call(A0 a0) const {
+        MBED_ASSERT(_ops);
+        return _ops->call(this, a0);
+    }
+
+    /** Call the attached function
+     */
+    R operator()(A0 a0) const {
+        return call(a0);
+    }
+
+    /** Test if function has been attached
+     */
+    operator bool() const {
+        return _ops;
+    }
+
+    /** Test for equality
+     */
+    friend bool operator==(const Callback &l, const Callback &r) {
+        return memcmp(&l, &r, sizeof(Callback)) == 0;
+    }
+
+    /** Test for inequality
+     */
+    friend bool operator!=(const Callback &l, const Callback &r) {
+        return !(l == r);
+    }
+
+    /** Static thunk for passing as C-style function
+     *  @param func Callback to call passed as void pointer
+     *  @param a0 An argument to be called with function func
+     *  @return the value as determined by func which is of 
+     *      type and determined by the signiture of func
+     */
+    static R thunk(void *func, A0 a0) {
+        return static_cast<Callback*>(func)->call(a0);
+    }
+
+private:
+    // Stored as pointer to function and pointer to optional object
+    // Function pointer is stored as union of possible function types
+    // to garuntee proper size and alignment
+    struct _class;
+    union {
+        void (*_staticfunc)(A0);
+        void (*_boundfunc)(_class*, A0);
+        void (_class::*_methodfunc)(A0);
+    } _func;
+    void *_obj;
+
+    // Dynamically dispatched operations
+    const struct ops {
+        R (*call)(const void*, A0);
+        void (*move)(void*, const void*);
+        void (*dtor)(void*);
+    } *_ops;
+
+    // Generate operations for function object
+    template <typename F>
+    void generate(const F &f) {
+        static const ops ops = {
+            &Callback::function_call<F>,
+            &Callback::function_move<F>,
+            &Callback::function_dtor<F>,
+        };
+        new (this) F(f);
+        _ops = &ops;
+    }
+
+    // Function attributes
+    template <typename F>
+    static R function_call(const void *p, A0 a0) {
+        return (*(F*)p)(a0);
+    }
+
+    template <typename F>
+    static void function_move(void *d, const void *p) {
+        new (d) F(*(F*)p);
+    }
+
+    template <typename F>
+    static void function_dtor(void *p) {
+        ((F*)p)->~F();
+    }
+
+    // Wrappers for functions with context
+    template <typename O, typename M>
+    struct method_context {
+        M method;
+        O *obj;
+
+        method_context(O *obj, M method)
+            : method(method), obj(obj) {}
+
+        R operator()(A0 a0) const {
+            return (obj->*method)(a0);
+        }
+    };
+
+    template <typename F, typename A>
+    struct function_context {
+        F func;
+        A *arg;
+
+        function_context(F func, A *arg)
+            : func(func), arg(arg) {}
+
+        R operator()(A0 a0) const {
+            return func(arg, a0);
+        }
+    };
+};
+
+/** Callback class based on template specialization
+ *
+ * @note Synchronization level: Not protected
+ * @ingroup platform
+ */
+template <typename R, typename A0, typename A1>
+class Callback<R(A0, A1)> {
+public:
+    /** Create a Callback with a static function
+     *  @param func     Static function to attach
+     */
+    Callback(R (*func)(A0, A1) = 0) {
+        if (!func) {
+            _ops = 0;
+        } else {
+            generate(func);
+        }
+    }
+
+    /** Attach a Callback
+     *  @param func     The Callback to attach
+     */
+    Callback(const Callback<R(A0, A1)> &func) {
+        if (func._ops) {
+            func._ops->move(this, &func);
+        }
+        _ops = func._ops;
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(U *obj, R (T::*method)(A0, A1)) {
+        generate(method_context<T, R (T::*)(A0, A1)>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(const U *obj, R (T::*method)(A0, A1) const) {
+        generate(method_context<const T, R (T::*)(A0, A1) const>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(volatile U *obj, R (T::*method)(A0, A1) volatile) {
+        generate(method_context<volatile T, R (T::*)(A0, A1) volatile>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(const volatile U *obj, R (T::*method)(A0, A1) const volatile) {
+        generate(method_context<const volatile T, R (T::*)(A0, A1) const volatile>(obj, method));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(T*, A0, A1), U *arg) {
+        generate(function_context<R (*)(T*, A0, A1), T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(const T*, A0, A1), const U *arg) {
+        generate(function_context<R (*)(const T*, A0, A1), const T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(volatile T*, A0, A1), volatile U *arg) {
+        generate(function_context<R (*)(volatile T*, A0, A1), volatile T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(const volatile T*, A0, A1), const volatile U *arg) {
+        generate(function_context<R (*)(const volatile T*, A0, A1), const volatile T>(func, arg));
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1))) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(const F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1) const)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1) volatile)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(const volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1) const volatile)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(U *obj, R (*func)(T*, A0, A1)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(const U *obj, R (*func)(const T*, A0, A1)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(volatile U *obj, R (*func)(volatile T*, A0, A1)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(const volatile U *obj, R (*func)(const volatile T*, A0, A1)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Destroy a callback
+     */
+    ~Callback() {
+        if (_ops) {
+            _ops->dtor(this);
+        }
+    }
+
+    /** Attach a static function
+     *  @param func     Static function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    void attach(R (*func)(A0, A1)) {
+        this->~Callback();
+        new (this) Callback(func);
+    }
+
+    /** Attach a Callback
+     *  @param func     The Callback to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    void attach(const Callback<R(A0, A1)> &func) {
+        this->~Callback();
+        new (this) Callback(func);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(U *obj, R (T::*method)(A0, A1)) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(const U *obj, R (T::*method)(A0, A1) const) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(volatile U *obj, R (T::*method)(A0, A1) volatile) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(const volatile U *obj, R (T::*method)(A0, A1) const volatile) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(T*, A0, A1), U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(const T*, A0, A1), const U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(volatile T*, A0, A1), volatile U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(const volatile T*, A0, A1), const volatile U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1))) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(const F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1) const)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1) volatile)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(const volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1) const volatile)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(U *obj, R (*func)(T*, A0, A1)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(const U *obj, R (*func)(const T*, A0, A1)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(volatile U *obj, R (*func)(volatile T*, A0, A1)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(const volatile U *obj, R (*func)(const volatile T*, A0, A1)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Assign a callback
+     */
+    Callback &operator=(const Callback &that) {
+        if (this != &that) {
+            this->~Callback();
+            new (this) Callback(that);
+        }
+
+        return *this;
+    }
+
+    /** Call the attached function
+     */
+    R call(A0 a0, A1 a1) const {
+        MBED_ASSERT(_ops);
+        return _ops->call(this, a0, a1);
+    }
+
+    /** Call the attached function
+     */
+    R operator()(A0 a0, A1 a1) const {
+        return call(a0, a1);
+    }
+
+    /** Test if function has been attached
+     */
+    operator bool() const {
+        return _ops;
+    }
+
+    /** Test for equality
+     */
+    friend bool operator==(const Callback &l, const Callback &r) {
+        return memcmp(&l, &r, sizeof(Callback)) == 0;
+    }
+
+    /** Test for inequality
+     */
+    friend bool operator!=(const Callback &l, const Callback &r) {
+        return !(l == r);
+    }
+
+    /** Static thunk for passing as C-style function
+     *  @param func Callback to call passed as void pointer
+     *  @param a0 An argument to be called with function func
+     *  @param a1 An argument to be called with function func
+     *  @return the value as determined by func which is of 
+     *      type and determined by the signiture of func
+     */
+    static R thunk(void *func, A0 a0, A1 a1) {
+        return static_cast<Callback*>(func)->call(a0, a1);
+    }
+
+private:
+    // Stored as pointer to function and pointer to optional object
+    // Function pointer is stored as union of possible function types
+    // to garuntee proper size and alignment
+    struct _class;
+    union {
+        void (*_staticfunc)(A0, A1);
+        void (*_boundfunc)(_class*, A0, A1);
+        void (_class::*_methodfunc)(A0, A1);
+    } _func;
+    void *_obj;
+
+    // Dynamically dispatched operations
+    const struct ops {
+        R (*call)(const void*, A0, A1);
+        void (*move)(void*, const void*);
+        void (*dtor)(void*);
+    } *_ops;
+
+    // Generate operations for function object
+    template <typename F>
+    void generate(const F &f) {
+        static const ops ops = {
+            &Callback::function_call<F>,
+            &Callback::function_move<F>,
+            &Callback::function_dtor<F>,
+        };
+        new (this) F(f);
+        _ops = &ops;
+    }
+
+    // Function attributes
+    template <typename F>
+    static R function_call(const void *p, A0 a0, A1 a1) {
+        return (*(F*)p)(a0, a1);
+    }
+
+    template <typename F>
+    static void function_move(void *d, const void *p) {
+        new (d) F(*(F*)p);
+    }
+
+    template <typename F>
+    static void function_dtor(void *p) {
+        ((F*)p)->~F();
+    }
+
+    // Wrappers for functions with context
+    template <typename O, typename M>
+    struct method_context {
+        M method;
+        O *obj;
+
+        method_context(O *obj, M method)
+            : method(method), obj(obj) {}
+
+        R operator()(A0 a0, A1 a1) const {
+            return (obj->*method)(a0, a1);
+        }
+    };
+
+    template <typename F, typename A>
+    struct function_context {
+        F func;
+        A *arg;
+
+        function_context(F func, A *arg)
+            : func(func), arg(arg) {}
+
+        R operator()(A0 a0, A1 a1) const {
+            return func(arg, a0, a1);
+        }
+    };
+};
+
+/** Callback class based on template specialization
+ *
+ * @note Synchronization level: Not protected
+ * @ingroup platform
+ */
+template <typename R, typename A0, typename A1, typename A2>
+class Callback<R(A0, A1, A2)> {
+public:
+    /** Create a Callback with a static function
+     *  @param func     Static function to attach
+     */
+    Callback(R (*func)(A0, A1, A2) = 0) {
+        if (!func) {
+            _ops = 0;
+        } else {
+            generate(func);
+        }
+    }
+
+    /** Attach a Callback
+     *  @param func     The Callback to attach
+     */
+    Callback(const Callback<R(A0, A1, A2)> &func) {
+        if (func._ops) {
+            func._ops->move(this, &func);
+        }
+        _ops = func._ops;
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(U *obj, R (T::*method)(A0, A1, A2)) {
+        generate(method_context<T, R (T::*)(A0, A1, A2)>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(const U *obj, R (T::*method)(A0, A1, A2) const) {
+        generate(method_context<const T, R (T::*)(A0, A1, A2) const>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(volatile U *obj, R (T::*method)(A0, A1, A2) volatile) {
+        generate(method_context<volatile T, R (T::*)(A0, A1, A2) volatile>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(const volatile U *obj, R (T::*method)(A0, A1, A2) const volatile) {
+        generate(method_context<const volatile T, R (T::*)(A0, A1, A2) const volatile>(obj, method));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(T*, A0, A1, A2), U *arg) {
+        generate(function_context<R (*)(T*, A0, A1, A2), T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(const T*, A0, A1, A2), const U *arg) {
+        generate(function_context<R (*)(const T*, A0, A1, A2), const T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(volatile T*, A0, A1, A2), volatile U *arg) {
+        generate(function_context<R (*)(volatile T*, A0, A1, A2), volatile T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(const volatile T*, A0, A1, A2), const volatile U *arg) {
+        generate(function_context<R (*)(const volatile T*, A0, A1, A2), const volatile T>(func, arg));
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2))) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(const F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2) const)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2) volatile)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(const volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2) const volatile)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(U *obj, R (*func)(T*, A0, A1, A2)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(const U *obj, R (*func)(const T*, A0, A1, A2)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(volatile U *obj, R (*func)(volatile T*, A0, A1, A2)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(const volatile U *obj, R (*func)(const volatile T*, A0, A1, A2)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Destroy a callback
+     */
+    ~Callback() {
+        if (_ops) {
+            _ops->dtor(this);
+        }
+    }
+
+    /** Attach a static function
+     *  @param func     Static function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    void attach(R (*func)(A0, A1, A2)) {
+        this->~Callback();
+        new (this) Callback(func);
+    }
+
+    /** Attach a Callback
+     *  @param func     The Callback to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    void attach(const Callback<R(A0, A1, A2)> &func) {
+        this->~Callback();
+        new (this) Callback(func);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(U *obj, R (T::*method)(A0, A1, A2)) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(const U *obj, R (T::*method)(A0, A1, A2) const) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(volatile U *obj, R (T::*method)(A0, A1, A2) volatile) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(const volatile U *obj, R (T::*method)(A0, A1, A2) const volatile) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(T*, A0, A1, A2), U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(const T*, A0, A1, A2), const U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(volatile T*, A0, A1, A2), volatile U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(const volatile T*, A0, A1, A2), const volatile U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2))) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(const F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2) const)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2) volatile)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(const volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2) const volatile)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(U *obj, R (*func)(T*, A0, A1, A2)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(const U *obj, R (*func)(const T*, A0, A1, A2)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(volatile U *obj, R (*func)(volatile T*, A0, A1, A2)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(const volatile U *obj, R (*func)(const volatile T*, A0, A1, A2)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Assign a callback
+     */
+    Callback &operator=(const Callback &that) {
+        if (this != &that) {
+            this->~Callback();
+            new (this) Callback(that);
+        }
+
+        return *this;
+    }
+
+    /** Call the attached function
+     */
+    R call(A0 a0, A1 a1, A2 a2) const {
+        MBED_ASSERT(_ops);
+        return _ops->call(this, a0, a1, a2);
+    }
+
+    /** Call the attached function
+     */
+    R operator()(A0 a0, A1 a1, A2 a2) const {
+        return call(a0, a1, a2);
+    }
+
+    /** Test if function has been attached
+     */
+    operator bool() const {
+        return _ops;
+    }
+
+    /** Test for equality
+     */
+    friend bool operator==(const Callback &l, const Callback &r) {
+        return memcmp(&l, &r, sizeof(Callback)) == 0;
+    }
+
+    /** Test for inequality
+     */
+    friend bool operator!=(const Callback &l, const Callback &r) {
+        return !(l == r);
+    }
+
+    /** Static thunk for passing as C-style function
+     *  @param func Callback to call passed as void pointer
+     *  @param a0 An argument to be called with function func
+     *  @param a1 An argument to be called with function func
+     *  @param a2 An argument to be called with function func
+     *  @return the value as determined by func which is of 
+     *      type and determined by the signiture of func
+     */
+    static R thunk(void *func, A0 a0, A1 a1, A2 a2) {
+        return static_cast<Callback*>(func)->call(a0, a1, a2);
+    }
+
+private:
+    // Stored as pointer to function and pointer to optional object
+    // Function pointer is stored as union of possible function types
+    // to garuntee proper size and alignment
+    struct _class;
+    union {
+        void (*_staticfunc)(A0, A1, A2);
+        void (*_boundfunc)(_class*, A0, A1, A2);
+        void (_class::*_methodfunc)(A0, A1, A2);
+    } _func;
+    void *_obj;
+
+    // Dynamically dispatched operations
+    const struct ops {
+        R (*call)(const void*, A0, A1, A2);
+        void (*move)(void*, const void*);
+        void (*dtor)(void*);
+    } *_ops;
+
+    // Generate operations for function object
+    template <typename F>
+    void generate(const F &f) {
+        static const ops ops = {
+            &Callback::function_call<F>,
+            &Callback::function_move<F>,
+            &Callback::function_dtor<F>,
+        };
+        
+        new (this) F(f);
+        _ops = &ops;
+    }
+
+    // Function attributes
+    template <typename F>
+    static R function_call(const void *p, A0 a0, A1 a1, A2 a2) {
+        return (*(F*)p)(a0, a1, a2);
+    }
+
+    template <typename F>
+    static void function_move(void *d, const void *p) {
+        new (d) F(*(F*)p);
+    }
+
+    template <typename F>
+    static void function_dtor(void *p) {
+        ((F*)p)->~F();
+    }
+
+    // Wrappers for functions with context
+    template <typename O, typename M>
+    struct method_context {
+        M method;
+        O *obj;
+
+        method_context(O *obj, M method)
+            : method(method), obj(obj) {}
+
+        R operator()(A0 a0, A1 a1, A2 a2) const {
+            return (obj->*method)(a0, a1, a2);
+        }
+    };
+
+    template <typename F, typename A>
+    struct function_context {
+        F func;
+        A *arg;
+
+        function_context(F func, A *arg)
+            : func(func), arg(arg) {}
+
+        R operator()(A0 a0, A1 a1, A2 a2) const {
+            return func(arg, a0, a1, a2);
+        }
+    };
+};
+
+/** Callback class based on template specialization
+ *
+ * @note Synchronization level: Not protected
+ * @ingroup platform
+ */
+template <typename R, typename A0, typename A1, typename A2, typename A3>
+class Callback<R(A0, A1, A2, A3)> {
+public:
+    /** Create a Callback with a static function
+     *  @param func     Static function to attach
+     */
+    Callback(R (*func)(A0, A1, A2, A3) = 0) {
+        if (!func) {
+            _ops = 0;
+        } else {
+            generate(func);
+        }
+    }
+
+    /** Attach a Callback
+     *  @param func     The Callback to attach
+     */
+    Callback(const Callback<R(A0, A1, A2, A3)> &func) {
+        if (func._ops) {
+            func._ops->move(this, &func);
+        }
+        _ops = func._ops;
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(U *obj, R (T::*method)(A0, A1, A2, A3)) {
+        generate(method_context<T, R (T::*)(A0, A1, A2, A3)>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(const U *obj, R (T::*method)(A0, A1, A2, A3) const) {
+        generate(method_context<const T, R (T::*)(A0, A1, A2, A3) const>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(volatile U *obj, R (T::*method)(A0, A1, A2, A3) volatile) {
+        generate(method_context<volatile T, R (T::*)(A0, A1, A2, A3) volatile>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(const volatile U *obj, R (T::*method)(A0, A1, A2, A3) const volatile) {
+        generate(method_context<const volatile T, R (T::*)(A0, A1, A2, A3) const volatile>(obj, method));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(T*, A0, A1, A2, A3), U *arg) {
+        generate(function_context<R (*)(T*, A0, A1, A2, A3), T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(const T*, A0, A1, A2, A3), const U *arg) {
+        generate(function_context<R (*)(const T*, A0, A1, A2, A3), const T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(volatile T*, A0, A1, A2, A3), volatile U *arg) {
+        generate(function_context<R (*)(volatile T*, A0, A1, A2, A3), volatile T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(const volatile T*, A0, A1, A2, A3), const volatile U *arg) {
+        generate(function_context<R (*)(const volatile T*, A0, A1, A2, A3), const volatile T>(func, arg));
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2, A3))) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(const F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2, A3) const)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2, A3) volatile)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(const volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2, A3) const volatile)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(U *obj, R (*func)(T*, A0, A1, A2, A3)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(const U *obj, R (*func)(const T*, A0, A1, A2, A3)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(volatile U *obj, R (*func)(volatile T*, A0, A1, A2, A3)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(const volatile U *obj, R (*func)(const volatile T*, A0, A1, A2, A3)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Destroy a callback
+     */
+    ~Callback() {
+        if (_ops) {
+            _ops->dtor(this);
+        }
+    }
+
+    /** Attach a static function
+     *  @param func     Static function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    void attach(R (*func)(A0, A1, A2, A3)) {
+        this->~Callback();
+        new (this) Callback(func);
+    }
+
+    /** Attach a Callback
+     *  @param func     The Callback to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    void attach(const Callback<R(A0, A1, A2, A3)> &func) {
+        this->~Callback();
+        new (this) Callback(func);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(U *obj, R (T::*method)(A0, A1, A2, A3)) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(const U *obj, R (T::*method)(A0, A1, A2, A3) const) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(volatile U *obj, R (T::*method)(A0, A1, A2, A3) volatile) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(const volatile U *obj, R (T::*method)(A0, A1, A2, A3) const volatile) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(T*, A0, A1, A2, A3), U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(const T*, A0, A1, A2, A3), const U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(volatile T*, A0, A1, A2, A3), volatile U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(const volatile T*, A0, A1, A2, A3), const volatile U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2, A3))) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(const F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2, A3) const)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2, A3) volatile)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(const volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2, A3) const volatile)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(U *obj, R (*func)(T*, A0, A1, A2, A3)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(const U *obj, R (*func)(const T*, A0, A1, A2, A3)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(volatile U *obj, R (*func)(volatile T*, A0, A1, A2, A3)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(const volatile U *obj, R (*func)(const volatile T*, A0, A1, A2, A3)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Assign a callback
+     */
+    Callback &operator=(const Callback &that) {
+        if (this != &that) {
+            this->~Callback();
+            new (this) Callback(that);
+        }
+
+        return *this;
+    }
+
+    /** Call the attached function
+     */
+    R call(A0 a0, A1 a1, A2 a2, A3 a3) const {
+        MBED_ASSERT(_ops);
+        return _ops->call(this, a0, a1, a2, a3);
+    }
+
+    /** Call the attached function
+     */
+    R operator()(A0 a0, A1 a1, A2 a2, A3 a3) const {
+        return call(a0, a1, a2, a3);
+    }
+
+    /** Test if function has been attached
+     */
+    operator bool() const {
+        return _ops;
+    }
+
+    /** Test for equality
+     */
+    friend bool operator==(const Callback &l, const Callback &r) {
+        return memcmp(&l, &r, sizeof(Callback)) == 0;
+    }
+
+    /** Test for inequality
+     */
+    friend bool operator!=(const Callback &l, const Callback &r) {
+        return !(l == r);
+    }
+
+    /** Static thunk for passing as C-style function
+     *  @param func Callback to call passed as void pointer
+     *  @param a0 An argument to be called with function func
+     *  @param a1 An argument to be called with function func
+     *  @param a2 An argument to be called with function func
+     *  @param a3 An argument to be called with function func
+     *  @return the value as determined by func which is of 
+     *      type and determined by the signiture of func
+     */
+    static R thunk(void *func, A0 a0, A1 a1, A2 a2, A3 a3) {
+        return static_cast<Callback*>(func)->call(a0, a1, a2, a3);
+    }
+
+private:
+    // Stored as pointer to function and pointer to optional object
+    // Function pointer is stored as union of possible function types
+    // to garuntee proper size and alignment
+    struct _class;
+    union {
+        void (*_staticfunc)(A0, A1, A2, A3);
+        void (*_boundfunc)(_class*, A0, A1, A2, A3);
+        void (_class::*_methodfunc)(A0, A1, A2, A3);
+    } _func;
+    void *_obj;
+
+    // Dynamically dispatched operations
+    const struct ops {
+        R (*call)(const void*, A0, A1, A2, A3);
+        void (*move)(void*, const void*);
+        void (*dtor)(void*);
+    } *_ops;
+
+    // Generate operations for function object
+    template <typename F>
+    void generate(const F &f) {
+        static const ops ops = {
+            &Callback::function_call<F>,
+            &Callback::function_move<F>,
+            &Callback::function_dtor<F>,
+        };
+
+        new (this) F(f);
+        _ops = &ops;
+    }
+
+    // Function attributes
+    template <typename F>
+    static R function_call(const void *p, A0 a0, A1 a1, A2 a2, A3 a3) {
+        return (*(F*)p)(a0, a1, a2, a3);
+    }
+
+    template <typename F>
+    static void function_move(void *d, const void *p) {
+        new (d) F(*(F*)p);
+    }
+
+    template <typename F>
+    static void function_dtor(void *p) {
+        ((F*)p)->~F();
+    }
+
+    // Wrappers for functions with context
+    template <typename O, typename M>
+    struct method_context {
+        M method;
+        O *obj;
+
+        method_context(O *obj, M method)
+            : method(method), obj(obj) {}
+
+        R operator()(A0 a0, A1 a1, A2 a2, A3 a3) const {
+            return (obj->*method)(a0, a1, a2, a3);
+        }
+    };
+
+    template <typename F, typename A>
+    struct function_context {
+        F func;
+        A *arg;
+
+        function_context(F func, A *arg)
+            : func(func), arg(arg) {}
+
+        R operator()(A0 a0, A1 a1, A2 a2, A3 a3) const {
+            return func(arg, a0, a1, a2, a3);
+        }
+    };
+};
+
+/** Callback class based on template specialization
+ *
+ * @note Synchronization level: Not protected
+ * @ingroup platform
+ */
+template <typename R, typename A0, typename A1, typename A2, typename A3, typename A4>
+class Callback<R(A0, A1, A2, A3, A4)> {
+public:
+    /** Create a Callback with a static function
+     *  @param func     Static function to attach
+     */
+    Callback(R (*func)(A0, A1, A2, A3, A4) = 0) {
+        if (!func) {
+            _ops = 0;
+        } else {
+            generate(func);
+        }
+    }
+
+    /** Attach a Callback
+     *  @param func     The Callback to attach
+     */
+    Callback(const Callback<R(A0, A1, A2, A3, A4)> &func) {
+        if (func._ops) {
+            func._ops->move(this, &func);
+        }
+        _ops = func._ops;
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(U *obj, R (T::*method)(A0, A1, A2, A3, A4)) {
+        generate(method_context<T, R (T::*)(A0, A1, A2, A3, A4)>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(const U *obj, R (T::*method)(A0, A1, A2, A3, A4) const) {
+        generate(method_context<const T, R (T::*)(A0, A1, A2, A3, A4) const>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(volatile U *obj, R (T::*method)(A0, A1, A2, A3, A4) volatile) {
+        generate(method_context<volatile T, R (T::*)(A0, A1, A2, A3, A4) volatile>(obj, method));
+    }
+
+    /** Create a Callback with a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     */
+    template<typename T, typename U>
+    Callback(const volatile U *obj, R (T::*method)(A0, A1, A2, A3, A4) const volatile) {
+        generate(method_context<const volatile T, R (T::*)(A0, A1, A2, A3, A4) const volatile>(obj, method));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(T*, A0, A1, A2, A3, A4), U *arg) {
+        generate(function_context<R (*)(T*, A0, A1, A2, A3, A4), T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(const T*, A0, A1, A2, A3, A4), const U *arg) {
+        generate(function_context<R (*)(const T*, A0, A1, A2, A3, A4), const T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(volatile T*, A0, A1, A2, A3, A4), volatile U *arg) {
+        generate(function_context<R (*)(volatile T*, A0, A1, A2, A3, A4), volatile T>(func, arg));
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function 
+     */
+    template<typename T, typename U>
+    Callback(R (*func)(const volatile T*, A0, A1, A2, A3, A4), const volatile U *arg) {
+        generate(function_context<R (*)(const volatile T*, A0, A1, A2, A3, A4), const volatile T>(func, arg));
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2, A3, A4))) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(const F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2, A3, A4) const)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2, A3, A4) volatile)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     */
+    template <typename F>
+    Callback(const volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2, A3, A4) const volatile)) {
+        generate(f);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(U *obj, R (*func)(T*, A0, A1, A2, A3, A4)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(const U *obj, R (*func)(const T*, A0, A1, A2, A3, A4)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(volatile U *obj, R (*func)(volatile T*, A0, A1, A2, A3, A4)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Create a Callback with a static function and bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to Callback(func, arg)
+     */
+    template<typename T, typename U>
+    Callback(const volatile U *obj, R (*func)(const volatile T*, A0, A1, A2, A3, A4)) {
+        new (this) Callback(func, obj);
+    }
+
+    /** Destroy a callback
+     */
+    ~Callback() {
+        if (_ops) {
+            _ops->dtor(this);
+        }
+    }
+
+    /** Attach a static function
+     *  @param func     Static function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    void attach(R (*func)(A0, A1, A2, A3, A4)) {
+        this->~Callback();
+        new (this) Callback(func);
+    }
+
+    /** Attach a Callback
+     *  @param func     The Callback to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    void attach(const Callback<R(A0, A1, A2, A3, A4)> &func) {
+        this->~Callback();
+        new (this) Callback(func);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(U *obj, R (T::*method)(A0, A1, A2, A3, A4)) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(const U *obj, R (T::*method)(A0, A1, A2, A3, A4) const) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(volatile U *obj, R (T::*method)(A0, A1, A2, A3, A4) volatile) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a member function
+     *  @param obj      Pointer to object to invoke member function on
+     *  @param method   Member function to attach
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template<typename T, typename U>
+    void attach(const volatile U *obj, R (T::*method)(A0, A1, A2, A3, A4) const volatile) {
+        this->~Callback();
+        new (this) Callback(obj, method);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(T*, A0, A1, A2, A3, A4), U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(const T*, A0, A1, A2, A3, A4), const U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(volatile T*, A0, A1, A2, A3, A4), volatile U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param func     Static function to attach
+     *  @param arg      Pointer argument to function
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename T, typename U>
+    void attach(R (*func)(const volatile T*, A0, A1, A2, A3, A4), const volatile U *arg) {
+        this->~Callback();
+        new (this) Callback(func, arg);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2, A3, A4))) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(const F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2, A3, A4) const)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2, A3, A4) volatile)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a function object
+     *  @param f Function object to attach
+     *  @note The function object is limited to a single word of storage
+     *  @deprecated
+     *      Replaced by simple assignment 'Callback cb = func'
+     */
+    template <typename F>
+    void attach(const volatile F f, MBED_ENABLE_IF_CALLBACK_COMPATIBLE(F, R (F::*)(A0, A1, A2, A3, A4) const volatile)) {
+        this->~Callback();
+        new (this) Callback(f);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(U *obj, R (*func)(T*, A0, A1, A2, A3, A4)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(const U *obj, R (*func)(const T*, A0, A1, A2, A3, A4)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(volatile U *obj, R (*func)(volatile T*, A0, A1, A2, A3, A4)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Attach a static function with a bound pointer
+     *  @param obj  Pointer to object to bind to function
+     *  @param func Static function to attach
+     *  @deprecated
+     *      Arguments to callback have been reordered to attach(func, arg)
+     */
+    template <typename T, typename U>
+    void attach(const volatile U *obj, R (*func)(const volatile T*, A0, A1, A2, A3, A4)) {
+        this->~Callback();
+        new (this) Callback(func, obj);
+    }
+
+    /** Assign a callback
+     */
+    Callback &operator=(const Callback &that) {
+        if (this != &that) {
+            this->~Callback();
+            new (this) Callback(that);
+        }
+
+        return *this;
+    }
+
+    /** Call the attached function
+     */
+    R call(A0 a0, A1 a1, A2 a2, A3 a3, A4 a4) const {
+        MBED_ASSERT(_ops);
+        return _ops->call(this, a0, a1, a2, a3, a4);
+    }
+
+    /** Call the attached function
+     */
+    R operator()(A0 a0, A1 a1, A2 a2, A3 a3, A4 a4) const {
+        return call(a0, a1, a2, a3, a4);
+    }
+
+    /** Test if function has been attached
+     */
+    operator bool() const {
+        return _ops;
+    }
+
+    /** Test for equality
+     */
+    friend bool operator==(const Callback &l, const Callback &r) {
+        return memcmp(&l, &r, sizeof(Callback)) == 0;
+    }
+
+    /** Test for inequality
+     */
+    friend bool operator!=(const Callback &l, const Callback &r) {
+        return !(l == r);
+    }
+
+    /** Static thunk for passing as C-style function
+     *  @param func Callback to call passed as void pointer
+     *  @param a0 An argument to be called with function func
+     *  @param a1 An argument to be called with function func
+     *  @param a2 An argument to be called with function func
+     *  @param a3 An argument to be called with function func
+     *  @param a4 An argument to be called with function func
+     *  @return the value as determined by func which is of 
+     *      type and determined by the signiture of func
+     */
+    static R thunk(void *func, A0 a0, A1 a1, A2 a2, A3 a3, A4 a4) {
+        return static_cast<Callback*>(func)->call(a0, a1, a2, a3, a4);
+    }
+
+private:
+    // Stored as pointer to function and pointer to optional object
+    // Function pointer is stored as union of possible function types
+    // to garuntee proper size and alignment
+    struct _class;
+    union {
+        void (*_staticfunc)(A0, A1, A2, A3, A4);
+        void (*_boundfunc)(_class*, A0, A1, A2, A3, A4);
+        void (_class::*_methodfunc)(A0, A1, A2, A3, A4);
+    } _func;
+    void *_obj;
+
+    // Dynamically dispatched operations
+    const struct ops {
+        R (*call)(const void*, A0, A1, A2, A3, A4);
+        void (*move)(void*, const void*);
+        void (*dtor)(void*);
+    } *_ops;
+
+    // Generate operations for function object
+    template <typename F>
+    void generate(const F &f) {
+        static const ops ops = {
+            &Callback::function_call<F>,
+            &Callback::function_move<F>,
+            &Callback::function_dtor<F>,
+        };
+
+        new (this) F(f);
+        _ops = &ops;
+    }
+
+    // Function attributes
+    template <typename F>
+    static R function_call(const void *p, A0 a0, A1 a1, A2 a2, A3 a3, A4 a4) {
+        return (*(F*)p)(a0, a1, a2, a3, a4);
+    }
+
+    template <typename F>
+    static void function_move(void *d, const void *p) {
+        new (d) F(*(F*)p);
+    }
+
+    template <typename F>
+    static void function_dtor(void *p) {
+        ((F*)p)->~F();
+    }
+
+    // Wrappers for functions with context
+    template <typename O, typename M>
+    struct method_context {
+        M method;
+        O *obj;
+
+        method_context(O *obj, M method)
+            : method(method), obj(obj) {}
+
+        R operator()(A0 a0, A1 a1, A2 a2, A3 a3, A4 a4) const {
+            return (obj->*method)(a0, a1, a2, a3, a4);
+        }
+    };
+
+    template <typename F, typename A>
+    struct function_context {
+        F func;
+        A *arg;
+
+        function_context(F func, A *arg)
+            : func(func), arg(arg) {}
+
+        R operator()(A0 a0, A1 a1, A2 a2, A3 a3, A4 a4) const {
+            return func(arg, a0, a1, a2, a3, a4);
+        }
+    };
+};
+
+// Internally used event type
+typedef Callback<void(int)> event_callback_t;
+
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @return         Callback with infered type
+ */
+template <typename R>
+Callback<R()> callback(R (*func)() = 0) {
+    return Callback<R()>(func);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @return         Callback with infered type
+ */
+template <typename R>
+Callback<R()> callback(const Callback<R()> &func) {
+    return Callback<R()>(func);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R>
+Callback<R()> callback(U *obj, R (T::*method)()) {
+    return Callback<R()>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R>
+Callback<R()> callback(const U *obj, R (T::*method)() const) {
+    return Callback<R()>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R>
+Callback<R()> callback(volatile U *obj, R (T::*method)() volatile) {
+    return Callback<R()>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R>
+Callback<R()> callback(const volatile U *obj, R (T::*method)() const volatile) {
+    return Callback<R()>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R>
+Callback<R()> callback(R (*func)(T*), U *arg) {
+    return Callback<R()>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R>
+Callback<R()> callback(R (*func)(const T*), const U *arg) {
+    return Callback<R()>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R>
+Callback<R()> callback(R (*func)(volatile T*), volatile U *arg) {
+    return Callback<R()>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R>
+Callback<R()> callback(R (*func)(const volatile T*), const volatile U *arg) {
+    return Callback<R()>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R>
+Callback<R()> callback(U *obj, R (*func)(T*)) {
+    return Callback<R()>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R>
+Callback<R()> callback(const U *obj, R (*func)(const T*)) {
+    return Callback<R()>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R>
+Callback<R()> callback(volatile U *obj, R (*func)(volatile T*)) {
+    return Callback<R()>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R>
+Callback<R()> callback(const volatile U *obj, R (*func)(const volatile T*)) {
+    return Callback<R()>(func, obj);
+}
+
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @return         Callback with infered type
+ */
+template <typename R, typename A0>
+Callback<R(A0)> callback(R (*func)(A0) = 0) {
+    return Callback<R(A0)>(func);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @return         Callback with infered type
+ */
+template <typename R, typename A0>
+Callback<R(A0)> callback(const Callback<R(A0)> &func) {
+    return Callback<R(A0)>(func);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0>
+Callback<R(A0)> callback(U *obj, R (T::*method)(A0)) {
+    return Callback<R(A0)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0>
+Callback<R(A0)> callback(const U *obj, R (T::*method)(A0) const) {
+    return Callback<R(A0)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0>
+Callback<R(A0)> callback(volatile U *obj, R (T::*method)(A0) volatile) {
+    return Callback<R(A0)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0>
+Callback<R(A0)> callback(const volatile U *obj, R (T::*method)(A0) const volatile) {
+    return Callback<R(A0)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0>
+Callback<R(A0)> callback(R (*func)(T*, A0), U *arg) {
+    return Callback<R(A0)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0>
+Callback<R(A0)> callback(R (*func)(const T*, A0), const U *arg) {
+    return Callback<R(A0)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0>
+Callback<R(A0)> callback(R (*func)(volatile T*, A0), volatile U *arg) {
+    return Callback<R(A0)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0>
+Callback<R(A0)> callback(R (*func)(const volatile T*, A0), const volatile U *arg) {
+    return Callback<R(A0)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0>
+Callback<R(A0)> callback(U *obj, R (*func)(T*, A0)) {
+    return Callback<R(A0)>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0>
+Callback<R(A0)> callback(const U *obj, R (*func)(const T*, A0)) {
+    return Callback<R(A0)>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0>
+Callback<R(A0)> callback(volatile U *obj, R (*func)(volatile T*, A0)) {
+    return Callback<R(A0)>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0>
+Callback<R(A0)> callback(const volatile U *obj, R (*func)(const volatile T*, A0)) {
+    return Callback<R(A0)>(func, obj);
+}
+
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @return         Callback with infered type
+ */
+template <typename R, typename A0, typename A1>
+Callback<R(A0, A1)> callback(R (*func)(A0, A1) = 0) {
+    return Callback<R(A0, A1)>(func);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @return         Callback with infered type
+ */
+template <typename R, typename A0, typename A1>
+Callback<R(A0, A1)> callback(const Callback<R(A0, A1)> &func) {
+    return Callback<R(A0, A1)>(func);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0, typename A1>
+Callback<R(A0, A1)> callback(U *obj, R (T::*method)(A0, A1)) {
+    return Callback<R(A0, A1)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0, typename A1>
+Callback<R(A0, A1)> callback(const U *obj, R (T::*method)(A0, A1) const) {
+    return Callback<R(A0, A1)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0, typename A1>
+Callback<R(A0, A1)> callback(volatile U *obj, R (T::*method)(A0, A1) volatile) {
+    return Callback<R(A0, A1)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0, typename A1>
+Callback<R(A0, A1)> callback(const volatile U *obj, R (T::*method)(A0, A1) const volatile) {
+    return Callback<R(A0, A1)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0, typename A1>
+Callback<R(A0, A1)> callback(R (*func)(T*, A0, A1), U *arg) {
+    return Callback<R(A0, A1)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0, typename A1>
+Callback<R(A0, A1)> callback(R (*func)(const T*, A0, A1), const U *arg) {
+    return Callback<R(A0, A1)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0, typename A1>
+Callback<R(A0, A1)> callback(R (*func)(volatile T*, A0, A1), volatile U *arg) {
+    return Callback<R(A0, A1)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0, typename A1>
+Callback<R(A0, A1)> callback(R (*func)(const volatile T*, A0, A1), const volatile U *arg) {
+    return Callback<R(A0, A1)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0, typename A1>
+Callback<R(A0, A1)> callback(U *obj, R (*func)(T*, A0, A1)) {
+    return Callback<R(A0, A1)>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0, typename A1>
+Callback<R(A0, A1)> callback(const U *obj, R (*func)(const T*, A0, A1)) {
+    return Callback<R(A0, A1)>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0, typename A1>
+Callback<R(A0, A1)> callback(volatile U *obj, R (*func)(volatile T*, A0, A1)) {
+    return Callback<R(A0, A1)>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0, typename A1>
+Callback<R(A0, A1)> callback(const volatile U *obj, R (*func)(const volatile T*, A0, A1)) {
+    return Callback<R(A0, A1)>(func, obj);
+}
+
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @return         Callback with infered type
+ */
+template <typename R, typename A0, typename A1, typename A2>
+Callback<R(A0, A1, A2)> callback(R (*func)(A0, A1, A2) = 0) {
+    return Callback<R(A0, A1, A2)>(func);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @return         Callback with infered type
+ */
+template <typename R, typename A0, typename A1, typename A2>
+Callback<R(A0, A1, A2)> callback(const Callback<R(A0, A1, A2)> &func) {
+    return Callback<R(A0, A1, A2)>(func);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0, typename A1, typename A2>
+Callback<R(A0, A1, A2)> callback(U *obj, R (T::*method)(A0, A1, A2)) {
+    return Callback<R(A0, A1, A2)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0, typename A1, typename A2>
+Callback<R(A0, A1, A2)> callback(const U *obj, R (T::*method)(A0, A1, A2) const) {
+    return Callback<R(A0, A1, A2)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0, typename A1, typename A2>
+Callback<R(A0, A1, A2)> callback(volatile U *obj, R (T::*method)(A0, A1, A2) volatile) {
+    return Callback<R(A0, A1, A2)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0, typename A1, typename A2>
+Callback<R(A0, A1, A2)> callback(const volatile U *obj, R (T::*method)(A0, A1, A2) const volatile) {
+    return Callback<R(A0, A1, A2)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2>
+Callback<R(A0, A1, A2)> callback(R (*func)(T*, A0, A1, A2), U *arg) {
+    return Callback<R(A0, A1, A2)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2>
+Callback<R(A0, A1, A2)> callback(R (*func)(const T*, A0, A1, A2), const U *arg) {
+    return Callback<R(A0, A1, A2)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2>
+Callback<R(A0, A1, A2)> callback(R (*func)(volatile T*, A0, A1, A2), volatile U *arg) {
+    return Callback<R(A0, A1, A2)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2>
+Callback<R(A0, A1, A2)> callback(R (*func)(const volatile T*, A0, A1, A2), const volatile U *arg) {
+    return Callback<R(A0, A1, A2)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2>
+Callback<R(A0, A1, A2)> callback(U *obj, R (*func)(T*, A0, A1, A2)) {
+    return Callback<R(A0, A1, A2)>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2>
+Callback<R(A0, A1, A2)> callback(const U *obj, R (*func)(const T*, A0, A1, A2)) {
+    return Callback<R(A0, A1, A2)>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2>
+Callback<R(A0, A1, A2)> callback(volatile U *obj, R (*func)(volatile T*, A0, A1, A2)) {
+    return Callback<R(A0, A1, A2)>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2>
+Callback<R(A0, A1, A2)> callback(const volatile U *obj, R (*func)(const volatile T*, A0, A1, A2)) {
+    return Callback<R(A0, A1, A2)>(func, obj);
+}
+
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @return         Callback with infered type
+ */
+template <typename R, typename A0, typename A1, typename A2, typename A3>
+Callback<R(A0, A1, A2, A3)> callback(R (*func)(A0, A1, A2, A3) = 0) {
+    return Callback<R(A0, A1, A2, A3)>(func);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @return         Callback with infered type
+ */
+template <typename R, typename A0, typename A1, typename A2, typename A3>
+Callback<R(A0, A1, A2, A3)> callback(const Callback<R(A0, A1, A2, A3)> &func) {
+    return Callback<R(A0, A1, A2, A3)>(func);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3>
+Callback<R(A0, A1, A2, A3)> callback(U *obj, R (T::*method)(A0, A1, A2, A3)) {
+    return Callback<R(A0, A1, A2, A3)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3>
+Callback<R(A0, A1, A2, A3)> callback(const U *obj, R (T::*method)(A0, A1, A2, A3) const) {
+    return Callback<R(A0, A1, A2, A3)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3>
+Callback<R(A0, A1, A2, A3)> callback(volatile U *obj, R (T::*method)(A0, A1, A2, A3) volatile) {
+    return Callback<R(A0, A1, A2, A3)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3>
+Callback<R(A0, A1, A2, A3)> callback(const volatile U *obj, R (T::*method)(A0, A1, A2, A3) const volatile) {
+    return Callback<R(A0, A1, A2, A3)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3>
+Callback<R(A0, A1, A2, A3)> callback(R (*func)(T*, A0, A1, A2, A3), U *arg) {
+    return Callback<R(A0, A1, A2, A3)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3>
+Callback<R(A0, A1, A2, A3)> callback(R (*func)(const T*, A0, A1, A2, A3), const U *arg) {
+    return Callback<R(A0, A1, A2, A3)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3>
+Callback<R(A0, A1, A2, A3)> callback(R (*func)(volatile T*, A0, A1, A2, A3), volatile U *arg) {
+    return Callback<R(A0, A1, A2, A3)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3>
+Callback<R(A0, A1, A2, A3)> callback(R (*func)(const volatile T*, A0, A1, A2, A3), const volatile U *arg) {
+    return Callback<R(A0, A1, A2, A3)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3>
+Callback<R(A0, A1, A2, A3)> callback(U *obj, R (*func)(T*, A0, A1, A2, A3)) {
+    return Callback<R(A0, A1, A2, A3)>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3>
+Callback<R(A0, A1, A2, A3)> callback(const U *obj, R (*func)(const T*, A0, A1, A2, A3)) {
+    return Callback<R(A0, A1, A2, A3)>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3>
+Callback<R(A0, A1, A2, A3)> callback(volatile U *obj, R (*func)(volatile T*, A0, A1, A2, A3)) {
+    return Callback<R(A0, A1, A2, A3)>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3>
+Callback<R(A0, A1, A2, A3)> callback(const volatile U *obj, R (*func)(const volatile T*, A0, A1, A2, A3)) {
+    return Callback<R(A0, A1, A2, A3)>(func, obj);
+}
+
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @return         Callback with infered type
+ */
+template <typename R, typename A0, typename A1, typename A2, typename A3, typename A4>
+Callback<R(A0, A1, A2, A3, A4)> callback(R (*func)(A0, A1, A2, A3, A4) = 0) {
+    return Callback<R(A0, A1, A2, A3, A4)>(func);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @return         Callback with infered type
+ */
+template <typename R, typename A0, typename A1, typename A2, typename A3, typename A4>
+Callback<R(A0, A1, A2, A3, A4)> callback(const Callback<R(A0, A1, A2, A3, A4)> &func) {
+    return Callback<R(A0, A1, A2, A3, A4)>(func);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3, typename A4>
+Callback<R(A0, A1, A2, A3, A4)> callback(U *obj, R (T::*method)(A0, A1, A2, A3, A4)) {
+    return Callback<R(A0, A1, A2, A3, A4)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3, typename A4>
+Callback<R(A0, A1, A2, A3, A4)> callback(const U *obj, R (T::*method)(A0, A1, A2, A3, A4) const) {
+    return Callback<R(A0, A1, A2, A3, A4)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3, typename A4>
+Callback<R(A0, A1, A2, A3, A4)> callback(volatile U *obj, R (T::*method)(A0, A1, A2, A3, A4) volatile) {
+    return Callback<R(A0, A1, A2, A3, A4)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj      Optional pointer to object to bind to function
+ *  @param method   Member function to attach
+ *  @return         Callback with infered type
+ */
+template<typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3, typename A4>
+Callback<R(A0, A1, A2, A3, A4)> callback(const volatile U *obj, R (T::*method)(A0, A1, A2, A3, A4) const volatile) {
+    return Callback<R(A0, A1, A2, A3, A4)>(obj, method);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3, typename A4>
+Callback<R(A0, A1, A2, A3, A4)> callback(R (*func)(T*, A0, A1, A2, A3, A4), U *arg) {
+    return Callback<R(A0, A1, A2, A3, A4)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3, typename A4>
+Callback<R(A0, A1, A2, A3, A4)> callback(R (*func)(const T*, A0, A1, A2, A3, A4), const U *arg) {
+    return Callback<R(A0, A1, A2, A3, A4)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3, typename A4>
+Callback<R(A0, A1, A2, A3, A4)> callback(R (*func)(volatile T*, A0, A1, A2, A3, A4), volatile U *arg) {
+    return Callback<R(A0, A1, A2, A3, A4)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param func     Static function to attach
+ *  @param arg      Pointer argument to function
+ *  @return         Callback with infered type
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3, typename A4>
+Callback<R(A0, A1, A2, A3, A4)> callback(R (*func)(const volatile T*, A0, A1, A2, A3, A4), const volatile U *arg) {
+    return Callback<R(A0, A1, A2, A3, A4)>(func, arg);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3, typename A4>
+Callback<R(A0, A1, A2, A3, A4)> callback(U *obj, R (*func)(T*, A0, A1, A2, A3, A4)) {
+    return Callback<R(A0, A1, A2, A3, A4)>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3, typename A4>
+Callback<R(A0, A1, A2, A3, A4)> callback(const U *obj, R (*func)(const T*, A0, A1, A2, A3, A4)) {
+    return Callback<R(A0, A1, A2, A3, A4)>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3, typename A4>
+Callback<R(A0, A1, A2, A3, A4)> callback(volatile U *obj, R (*func)(volatile T*, A0, A1, A2, A3, A4)) {
+    return Callback<R(A0, A1, A2, A3, A4)>(func, obj);
+}
+
+/** Create a callback class with type infered from the arguments
+ *
+ *  @param obj  Optional pointer to object to bind to function
+ *  @param func Static function to attach
+ *  @return     Callback with infered type
+ *  @deprecated
+ *      Arguments to callback have been reordered to callback(func, arg)
+ */
+template <typename T, typename U, typename R, typename A0, typename A1, typename A2, typename A3, typename A4>
+Callback<R(A0, A1, A2, A3, A4)> callback(const volatile U *obj, R (*func)(const volatile T*, A0, A1, A2, A3, A4)) {
+    return Callback<R(A0, A1, A2, A3, A4)>(func, obj);
+}
+
+
+// } // namespace mbed
+
+#endif
+#endif // Arduino
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sx1276/arduino-mbed.cpp	Tue Jul 11 13:32:34 2017 +0200
@@ -0,0 +1,441 @@
+/*
+ * The file is Licensed under the Apache License, Version 2.0
+ * (c) 2017 Helmut Tschemernjak
+ * 30826 Garbsen (Hannover) Germany
+ */
+
+#ifdef ARDUINO
+
+using namespace std;
+
+#include "arduino-mbed.h"
+
+
+static void pinInt00(void);
+static void pinInt01(void);
+static void pinInt02(void);
+static void pinInt03(void);
+static void pinInt04(void);
+static void pinInt05(void);
+static void pinInt06(void);
+static void pinInt07(void);
+static void pinInt08(void);
+static void pinInt09(void);
+static void pinInt10(void);
+static void pinInt11(void);
+static void pinInt12(void);
+static void pinInt13(void);
+static void pinInt14(void);
+static void pinInt15(void);
+static void pinInt16(void);
+static void pinInt17(void);
+static void pinInt18(void);
+static void pinInt19(void);
+static void pinInt20(void);
+static void pinInt21(void);
+static void pinInt22(void);
+static void pinInt23(void);
+static void pinInt24(void);
+static void pinInt25(void);
+static void pinInt26(void);
+static void pinInt27(void);
+static void pinInt28(void);
+static void pinInt29(void);
+static void pinInt30(void);
+static void pinInt31(void);
+static void pinInt32(void);
+static void pinInt33(void);
+static void pinInt34(void);
+static void pinInt35(void);
+static void pinInt36(void);
+static void pinInt37(void);
+static void pinInt38(void);
+static void pinInt39(void);
+static void pinInt40(void);
+static void pinInt41(void);
+static void pinInt42(void);
+static void pinInt43(void);
+static void pinInt44(void);
+static void pinInt45(void);
+static void pinInt46(void);
+static void pinInt47(void);
+
+
+
+#define MAX_MCU_PINS	48
+class InterruptIn;
+struct intPtrTable {
+    void (*func)(void);
+    InterruptIn	*context;
+} intPtrTable[MAX_MCU_PINS]  = {
+    { pinInt00, NULL },
+    { pinInt01, NULL },
+    { pinInt02, NULL },
+    { pinInt03, NULL },
+    { pinInt04, NULL },
+    { pinInt05, NULL },
+    { pinInt06, NULL },
+    { pinInt07, NULL },
+    { pinInt08, NULL },
+    { pinInt09, NULL },
+    { pinInt10, NULL },
+    { pinInt11, NULL },
+    { pinInt12, NULL },
+    { pinInt13, NULL },
+    { pinInt14, NULL },
+    { pinInt15, NULL },
+    { pinInt16, NULL },
+    { pinInt17, NULL },
+    { pinInt18, NULL },
+    { pinInt19, NULL },
+    { pinInt20, NULL },
+    { pinInt21, NULL },
+    { pinInt22, NULL },
+    { pinInt23, NULL },
+    { pinInt24, NULL },
+    { pinInt25, NULL },
+    { pinInt26, NULL },
+    { pinInt27, NULL },
+    { pinInt28, NULL },
+    { pinInt29, NULL },
+    { pinInt30, NULL },
+    { pinInt31, NULL },
+    { pinInt32, NULL },
+    { pinInt33, NULL },
+    { pinInt34, NULL },
+    { pinInt35, NULL },
+    { pinInt36, NULL },
+    { pinInt37, NULL },
+    { pinInt38, NULL },
+    { pinInt39, NULL },
+    { pinInt40, NULL },
+    { pinInt41, NULL },
+    { pinInt42, NULL },
+    { pinInt43, NULL },
+    { pinInt44, NULL },
+    { pinInt45, NULL },
+    { pinInt46, NULL },
+    { pinInt47, NULL }
+}; // our max MCUs pins
+
+
+
+static void pinInt00(void) { InterruptIn::_irq_handler(intPtrTable[0].context); }
+static void pinInt01(void) { InterruptIn::_irq_handler(intPtrTable[1].context); }
+static void pinInt02(void) { InterruptIn::_irq_handler(intPtrTable[2].context); }
+static void pinInt03(void) { InterruptIn::_irq_handler(intPtrTable[3].context); }
+static void pinInt04(void) { InterruptIn::_irq_handler(intPtrTable[4].context); }
+static void pinInt05(void) { InterruptIn::_irq_handler(intPtrTable[5].context); }
+static void pinInt06(void) { InterruptIn::_irq_handler(intPtrTable[6].context); }
+static void pinInt07(void) { InterruptIn::_irq_handler(intPtrTable[7].context); }
+static void pinInt08(void) { InterruptIn::_irq_handler(intPtrTable[8].context); }
+static void pinInt09(void) { InterruptIn::_irq_handler(intPtrTable[9].context); }
+static void pinInt10(void) { InterruptIn::_irq_handler(intPtrTable[10].context); }
+static void pinInt11(void) { InterruptIn::_irq_handler(intPtrTable[11].context); }
+static void pinInt12(void) { InterruptIn::_irq_handler(intPtrTable[12].context); }
+static void pinInt13(void) { InterruptIn::_irq_handler(intPtrTable[13].context); }
+static void pinInt14(void) { InterruptIn::_irq_handler(intPtrTable[14].context); }
+static void pinInt15(void) { InterruptIn::_irq_handler(intPtrTable[15].context); }
+static void pinInt16(void) { InterruptIn::_irq_handler(intPtrTable[16].context); }
+static void pinInt17(void) { InterruptIn::_irq_handler(intPtrTable[17].context); }
+static void pinInt18(void) { InterruptIn::_irq_handler(intPtrTable[18].context); }
+static void pinInt19(void) { InterruptIn::_irq_handler(intPtrTable[19].context); }
+static void pinInt20(void) { InterruptIn::_irq_handler(intPtrTable[20].context); }
+static void pinInt21(void) { InterruptIn::_irq_handler(intPtrTable[21].context); }
+static void pinInt22(void) { InterruptIn::_irq_handler(intPtrTable[22].context); }
+static void pinInt23(void) { InterruptIn::_irq_handler(intPtrTable[23].context); }
+static void pinInt24(void) { InterruptIn::_irq_handler(intPtrTable[24].context); }
+static void pinInt25(void) { InterruptIn::_irq_handler(intPtrTable[25].context); }
+static void pinInt26(void) { InterruptIn::_irq_handler(intPtrTable[26].context); }
+static void pinInt27(void) { InterruptIn::_irq_handler(intPtrTable[27].context); }
+static void pinInt28(void) { InterruptIn::_irq_handler(intPtrTable[28].context); }
+static void pinInt29(void) { InterruptIn::_irq_handler(intPtrTable[29].context); }
+static void pinInt30(void) { InterruptIn::_irq_handler(intPtrTable[30].context); }
+static void pinInt31(void) { InterruptIn::_irq_handler(intPtrTable[31].context); }
+static void pinInt32(void) { InterruptIn::_irq_handler(intPtrTable[32].context); }
+static void pinInt33(void) { InterruptIn::_irq_handler(intPtrTable[33].context); }
+static void pinInt34(void) { InterruptIn::_irq_handler(intPtrTable[34].context); }
+static void pinInt35(void) { InterruptIn::_irq_handler(intPtrTable[35].context); }
+static void pinInt36(void) { InterruptIn::_irq_handler(intPtrTable[36].context); }
+static void pinInt37(void) { InterruptIn::_irq_handler(intPtrTable[37].context); }
+static void pinInt38(void) { InterruptIn::_irq_handler(intPtrTable[38].context); }
+static void pinInt39(void) { InterruptIn::_irq_handler(intPtrTable[39].context); }
+static void pinInt40(void) { InterruptIn::_irq_handler(intPtrTable[40].context); }
+static void pinInt41(void) { InterruptIn::_irq_handler(intPtrTable[41].context); }
+static void pinInt42(void) { InterruptIn::_irq_handler(intPtrTable[42].context); }
+static void pinInt43(void) { InterruptIn::_irq_handler(intPtrTable[43].context); }
+static void pinInt44(void) { InterruptIn::_irq_handler(intPtrTable[44].context); }
+static void pinInt45(void) { InterruptIn::_irq_handler(intPtrTable[45].context); }
+static void pinInt46(void) { InterruptIn::_irq_handler(intPtrTable[46].context); }
+static void pinInt47(void) { InterruptIn::_irq_handler(intPtrTable[47].context); }
+
+
+
+
+void
+InterruptIn::rise(Callback<void()> func) {
+    if (_gpioPin >= MAX_MCU_PINS-1)
+        return;
+    if (func) {
+        _func = func;
+        intPtrTable[_gpioPin].context = this;
+        attachInterrupt(digitalPinToInterrupt(_gpioPin), intPtrTable[_gpioPin].func, RISING);
+    } else {
+        _func = InterruptIn::donothing;
+        intPtrTable[_gpioPin].context = NULL;
+        detachInterrupt(_gpioPin);
+    }
+};
+
+void
+InterruptIn::fall(Callback<void()> func) {
+    if (func) {
+        _func = func;
+        intPtrTable[_gpioPin].context = this;
+        attachInterrupt(digitalPinToInterrupt(_gpioPin), intPtrTable[_gpioPin].func, FALLING);
+    } else {
+        _func = InterruptIn::donothing;
+        intPtrTable[_gpioPin].context = NULL;
+        detachInterrupt(_gpioPin);
+    }
+}
+
+
+#define MAX_TIMEOUTS	10
+class Timeout;
+struct TimeoutVector {
+    Timeout *timer;
+    volatile uint32_t timeout; // us
+} TimeOuts[MAX_TIMEOUTS];
+
+
+#if defined(__SAMD21G18A__) || defined(__SAMD21J18A__)
+/*
+ * __SAMD21J18A__ is the SamD21 Explained Board
+ * __SAMD21G18A__ is Genuino Zero-Board (compatible with the LoRa board)
+ */
+
+/*
+ * see tcc.h included from
+ * Arduino15/packages/arduino/tools/CMSIS-Atmel/1.1.0/CMSIS/
+ * Device/ATMEL/samd21/include/component/tcc.h
+ */
+static const struct TCC_CONFIG {
+    Tcc *tcc_ptr;
+    IRQn_Type tcc_irq;
+    uint8_t nbits;
+} TCC_CONFIG[] {
+    { TCC0, TCC0_IRQn, 24 },
+    { TCC1, TCC1_IRQn, 24 },
+    { TCC2, TCC2_IRQn, 16 },
+};
+#define USE_TCC  0 // TCC0, TTC1, TTC2 are working using the Arduino D21
+
+
+static bool initTimerDone = false;
+
+static void initTimer() {
+    Tcc *TC = TCC_CONFIG[USE_TCC].tcc_ptr;
+    
+    // Enable clock for TC, see gclk.h
+    if (TC == TCC0 || TC == TCC1) {
+        REG_GCLK_CLKCTRL = (uint16_t) (GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | GCLK_CLKCTRL_ID_TCC0_TCC1);
+    } else if (TC == TCC2) {
+        REG_GCLK_CLKCTRL = (uint16_t) (GCLK_CLKCTRL_CLKEN | GCLK_CLKCTRL_GEN_GCLK0 | GCLK_CLKCTRL_ID_TCC2_TC3_Val);
+    }
+    while (GCLK->STATUS.bit.SYNCBUSY == 1); // wait for sync
+    
+    TC->CTRLA.reg &= ~TCC_CTRLA_ENABLE;   // Disable TC
+    while (TC->SYNCBUSY.bit.ENABLE == 1); // wait for sync
+    
+    TC->CTRLA.reg |= (TCC_CTRLA_PRESCALER_DIV1024 | TCC_CTRLA_RUNSTDBY); // Set perscaler
+    
+    TC->WAVE.reg |= TCC_WAVE_WAVEGEN_NFRQ; // Set wave form configuration
+    while (TC->SYNCBUSY.bit.WAVE == 1);	   // wait for sync
+    
+    TC->PER.bit.PER = 0xFFFFFF; // set counter top to max 24 bit
+    while (TC->SYNCBUSY.bit.PER == 1); // wait for sync
+    
+    // the compare counter TC->CC[0].reg will be set in the startTimer
+    // after the timeout calculation is known.
+    
+    // Interrupts
+    TC->INTENSET.reg = 0;              // disable all interrupts
+    TC->INTENSET.bit.OVF = 1;          // enable overfollow
+    TC->INTENSET.bit.MC0 = 1;          // enable compare match to CC0
+    
+    NVIC_EnableIRQ( TCC_CONFIG[USE_TCC].tcc_irq); // Enable InterruptVector
+    initTimerDone = true;
+}
+
+static void stopTimer(void)
+{
+    Tcc *TC = TCC_CONFIG[USE_TCC].tcc_ptr;
+    
+    TC->CTRLA.reg &= ~TCC_CTRLA_ENABLE;   // Disable TC
+    while (TC->SYNCBUSY.bit.ENABLE == 1); // wait for sync
+}
+
+static void startTimer(uint32_t delay_us)
+{
+    Tcc *TC = TCC_CONFIG[USE_TCC].tcc_ptr;
+    
+    if (!initTimerDone)
+        initTimer();	// initial setup with stopped timer
+    
+    stopTimer();		// avoid timer interrupts while calculating
+    
+    /*
+     * every 21333 ns equals one tick (1/(48000000/1024))
+     * COUNT*DIVIDER*SECS until interrupt
+     * 48 Mhz = (65536*1024)/1.398636s
+     */
+    long long nclocks = delay_us * 1000; // ns;
+    nclocks = nclocks / 21333;
+    int nCounts = nclocks;
+   
+    int bits = TCC_CONFIG[USE_TCC].nbits;
+    int maxCounts = (uint32_t)(1<<bits)-1;
+
+    if (nCounts > maxCounts) 	// if count exceeds timer capacity
+        nCounts =  maxCounts;	// set the largest posible count.
+    if (nCounts == 0)
+        nCounts = 1;
+    TC->CC[0].bit.CC = nCounts;
+    while (TC->SYNCBUSY.bit.CC0 == 1); // wait for sync
+
+    TC->CTRLA.reg |= TCC_CTRLA_ENABLE ; // Enable TC
+    while (TC->SYNCBUSY.bit.ENABLE == 1); // wait for sync
+#if 1
+    Serial.print(millis(), DEC);
+    Serial.print(" startTimer: nCounts=");
+    Serial.println(nCounts, DEC);
+#endif
+}
+
+
+
+#if USE_TCC == 0
+void TCC0_Handler()
+#elif USE_TCC == 1
+void TCC1_Handler()
+#elif USE_TCC == 2
+void TCC2_Handler()
+#endif
+{
+    static uint32_t last_usecs = 0;
+    Tcc *TC = TCC_CONFIG[USE_TCC].tcc_ptr;
+    uint32_t usecs = micros();
+    uint32_t u_offset = 0;
+    
+    if (last_usecs && last_usecs < usecs) {
+        /*
+         * Problem is that the micros sometimes gives smaller values
+         * compared to previuos micros. As a workaround we all 1ms.
+         */
+        u_offset = 1000;
+    }
+    last_usecs = usecs;
+
+    /*
+     * Overflow means the max timer exeeded, we need restart the timer
+     * Interrupts and
+     */
+    if (TC->INTFLAG.bit.OVF == 1) {  // A overflow caused the interrupt
+        Serial.print("OVF\r\n");
+        TC->INTFLAG.bit.OVF = 1;    // writing a one clears the flag ovf flag
+    }
+    
+    if (TC->INTFLAG.bit.MC0 == 1) {  // A compare to cc0 caused the interrupt
+        //Serial.print("MC0\r\n");
+        TC->INTFLAG.bit.MC0 = 1;    // writing a one clears the MCO (match capture) flag
+    }
+
+    TC->CTRLA.reg &= ~TCC_CTRLA_ENABLE;   // Disable TC
+    while (TC->SYNCBUSY.bit.ENABLE == 1); // wait for sync
+    
+    for (int i = 0; i < MAX_TIMEOUTS-1; i++) {
+        struct TimeoutVector *tvp = &TimeOuts[i];
+        if (tvp->timer && tvp->timeout && usecs + u_offset >= tvp->timeout) {
+            Timeout *saveTimer = tvp->timer;
+            tvp->timer = NULL;
+            tvp->timeout = 0;
+            Timeout::_irq_handler(saveTimer);
+        }
+    }
+    /*
+     * we need to restart the timer for remaining interrupts
+     * we provide the interrupt entry time in usecs which means
+     * we don't count the irq_hander duration or debug prints
+     */
+    Timeout::restart(usecs);
+}
+
+#endif // D21 TCC Timer
+
+void
+Timeout::insert(void)
+{
+    noInterrupts();
+    for (int i = 0; i < MAX_TIMEOUTS-1; i++) {
+        struct TimeoutVector *tvp = &TimeOuts[i];
+        if (tvp->timer == NULL) {
+            tvp->timeout = _timeout;
+            tvp->timer = this;
+            break;
+        }
+    }
+    interrupts();
+}
+
+void
+Timeout::remove(void)
+{
+    noInterrupts();
+    for (int i = 0; i < MAX_TIMEOUTS-1; i++) {
+        struct TimeoutVector *tvp = &TimeOuts[i];
+        if (tvp->timer == this) {
+            tvp->timer = NULL;
+            tvp->timeout = 0;
+            break;
+        }
+    }
+    interrupts();
+}
+
+
+void
+Timeout::restart(uint32_t usecs)
+{
+    uint32_t timeout = ~0;
+    
+    /*
+     * find the lowest timeout value which is our the next timeout
+     * zero means stop the timer.
+     */
+    noInterrupts();
+    for (int i = 0; i < MAX_TIMEOUTS-1; i++) {
+        struct TimeoutVector *tvp = &TimeOuts[i];
+        if (tvp->timer && tvp->timeout > 0) {
+            if (tvp->timeout < timeout) {
+                timeout = tvp->timeout;
+            }
+        }
+    }
+    interrupts();
+    
+    if (timeout == (uint32_t)~0) {
+        stopTimer();
+        return;
+    }
+    if (!usecs)
+    	usecs = micros();
+    
+    if (timeout > usecs) {
+        startTimer(timeout - usecs);
+        return;
+    } else {
+        startTimer(1); // just one usec to trigger interrrupt
+    }
+}
+#endif // ARDUINO
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sx1276/arduino-mbed.h	Tue Jul 11 13:32:34 2017 +0200
@@ -0,0 +1,245 @@
+/*
+ * The file is Licensed under the Apache License, Version 2.0
+ * (c) 2017 Helmut Tschemernjak
+ * 30826 Garbsen (Hannover) Germany
+ */
+
+
+
+#ifdef ARDUINO
+#ifndef __ARDUINO_MBED_H__
+#define __ARDUINO_MBED_H__
+
+#include <arduino.h>
+#include "Callback-A.h"
+#include <SPI.h>
+#undef min
+#undef max
+#undef map
+
+
+typedef int PinName;
+#define NC	-1
+#define	wait_ms	delay
+
+class DigitalInOut {
+public:
+    DigitalInOut(PinName pin) {
+        _gpioPin = pin;
+    }
+    void write(int value) {
+        digitalWrite(_gpioPin, value == 0 ? LOW : HIGH);
+    };
+    
+    void output() {
+        pinMode(_gpioPin, OUTPUT);
+    };
+    
+    void input() {
+        pinMode(_gpioPin, INPUT);
+    };
+    
+    int read() {
+        if (digitalRead(_gpioPin) == HIGH)
+            return 1;
+        else
+            return 0;
+    };
+    operator int() {
+        return read();
+    };
+    
+    DigitalInOut& operator= (int value) {
+        // Underlying write is thread safe
+        write(value);
+        return *this;
+    }
+    
+    DigitalInOut& operator= (DigitalInOut& rhs) {
+        write(rhs.read());
+        return *this;
+    }
+    
+private:
+    int _gpioPin;
+};
+
+class DigitalOut : public DigitalInOut {
+public:
+    
+    DigitalOut(PinName pin) : DigitalInOut(pin) {
+        output();
+    }
+    
+    DigitalOut& operator= (int value) {
+        write(value);
+        return *this;
+    }
+    
+};
+
+class DigitalIn : public DigitalInOut {
+public:
+    
+    DigitalIn(PinName pin) :  DigitalInOut(pin) {
+        input();
+    }
+};
+
+class XSPI {
+public:
+    XSPI(PinName mosi, PinName miso, PinName sclk) {
+        _mosi = mosi;
+        _miso = miso;
+        _sclk = sclk;
+        if (mosi == PIN_SPI_MOSI && miso == PIN_SPI_MISO && sclk == PIN_SPI_SCK)
+            _spi = &SPI;
+#if SPI_INTERFACES_COUNT > 1
+        else if (mosi == PIN_SPI1_MOSI && miso == PIN_SPI1_MISO && sclk == PIN_SPI1_SCK)
+            _spi = &SPI1;
+#endif
+#if SPI_INTERFACES_COUNT > 2
+        else if (mosi == PIN_SPI2_MOSI && miso == PIN_SPI2_MISO && sclk == PIN_SPI2_SCK)
+            _spi = &SPI2;
+#endif
+        else {
+            _spi = NULL;
+            return;
+        }
+        _hz = 1000000;
+        _mode = SPI_MODE0;
+        _spi->beginTransaction(SPISettings(_hz, MSBFIRST, _mode));
+        _spi->endTransaction();
+    }
+    
+    void format(int bits, int mode = 0) {
+        if (mode == 0)
+            _mode = SPI_MODE0;
+        else if (mode == 1)
+            _mode = SPI_MODE1;
+        else if (mode == 2)
+            _mode = SPI_MODE2;
+        else if (mode == 3)
+            _mode = SPI_MODE3;
+        else
+            _mode = SPI_MODE0;
+        _bits = bits;
+        _spi->beginTransaction(SPISettings(_hz, MSBFIRST, _mode));
+    	_spi->endTransaction();
+    }
+    void frequency(int hz) {
+        _hz = hz;
+        _spi->beginTransaction(SPISettings(_hz, MSBFIRST, _mode));
+        _spi->endTransaction();
+    }
+    
+    int write(int value) {
+        _spi->beginTransaction(SPISettings(_hz, MSBFIRST, _mode));
+        int ret = _spi->transfer(value);
+        _spi->endTransaction();
+        return ret;
+    }
+
+private:
+    SPIClass *_spi;
+    int _hz;
+    int _mode;
+    int _bits;
+    int _mosi, _miso, _sclk;
+};
+
+class InterruptIn {
+public:
+    static void donothing(void) {
+    }
+    
+    InterruptIn(PinName pin) :  _func() {
+        _gpioPin = pin;
+        _func = InterruptIn::donothing;
+        pinMode(_gpioPin, INPUT);
+    }
+    
+    ~InterruptIn() {
+        detachInterrupt(digitalPinToInterrupt(_gpioPin));
+    };
+    
+    static void _irq_handler(InterruptIn *id) {
+        if (id)
+        	id->_func();
+    }
+    
+    void rise(Callback<void()> func);
+    
+    void fall(Callback<void()> func);
+    
+private:
+    int _gpioPin;
+    Callback<void()> _func;
+};
+
+class Timer {
+public:
+    void start(void) {
+        _time = micros();
+    }
+    int read_ms(void) {
+        return (micros() - _time) / 1000;
+    }
+    int read_us(void) {
+        return micros() - _time;
+    }
+private:
+    uint32_t _time;
+};
+
+
+class Timeout {
+public:
+    Timeout() : _func() {
+    }
+    ~Timeout() {
+        detach();
+    }
+    
+    void attach(Callback<void()> func, int msecs) {
+        if (msecs == 0)
+            return detach();
+        _func = func;
+        _timeout = micros() + (uint32_t)msecs * 1000;
+        insert();
+        restart();
+    }
+    
+    void attach_us(Callback<void()> func, long usecs) {
+        if (usecs == 0)
+            return detach();
+        _func = func;
+        _timeout = micros() + usecs;
+        insert();
+        restart();
+    }
+    
+    void detach() {
+        _func = NULL;
+        remove();
+        restart();
+    }
+    
+    static void _irq_handler(Timeout *tp) {
+        if (tp) {
+            tp->_func();
+        }
+    }
+
+    static void restart(uint32_t usecs = 0);
+protected:
+    void insert(void);
+    void remove(void);
+private:
+    Callback<void()> _func;
+    uint32_t _timeout;	// in us this lasts form 49 days.
+};
+
+#endif // __ARDUINO_MBED_H__
+
+#endif // ARDUINO
--- a/sx1276/sx1276-arduino-hal.cpp	Fri Jun 30 16:08:05 2017 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,431 +0,0 @@
-
-/*
- * This file contains a copy of the master content sx1276-mbed-hal.h
- * with adaption for the Arduino environment
- * (c) 2017 Helmut Tschemernjak
- * 30826 Garbsen (Hannover) Germany
- */
-#ifdef ARDUINO
-
-/*
- (C) 2014 Semtech
- Description: -
- License: Revised BSD License, see LICENSE.TXT file include in the project
- Maintainers: Miguel Luis, Gregory Cristian and Nicolas Huguenin
- */
-
-/*
- * additional development to make it more generic across multiple OS versions
- * (c) 2017 Helmut Tschemernjak
- * 30826 Garbsen (Hannover) Germany
- */
-
-#include "sx1276-arduino-hal.h"
-
-
-
-SX1276Generic::SX1276Generic( RadioEvents_t *events, BoardType_t board,
-                             PinName mosi, PinName miso, PinName sclk, PinName nss, PinName reset,
-                             PinName dio0, PinName dio1, PinName dio2, PinName dio3, PinName dio4, PinName dio5,
-                             PinName antSwitch, PinName antSwitchTX, PinName antSwitchTXBoost, PinName tcxo)
-: SX1276( events)
-{
-    this->RadioEvents = events;
-    boardConnected = board;
-    
-    _antSwitch = NULL;
-    _antSwitchTX = NULL;
-    _antSwitchTXBoost = NULL;
-    
-    _tcxo = NULL;
-    if (tcxo != NC)
-        _tcxo = new DigitalOut(tcxo);
-    
-    switch(boardConnected) {
-        case SX1276MB1MAS:
-        case SX1276MB1LAS:
-            _antSwitch = new DigitalOut(antSwitch);
-            break;
-        case RFM95_SX1276:
-            break;
-        case MURATA_SX1276:
-            _antSwitch = new DigitalOut(antSwitch);
-            _antSwitchTX = new DigitalOut(antSwitchTX);
-            _antSwitchTXBoost = new DigitalOut(antSwitchTXBoost);
-            break;
-        default:
-            break;
-    }
-    _spi = new SPI(mosi, miso, sclk );
-    _nss = new DigitalOut(nss);
-    
-    _reset = new DigitalInOut(reset);
-    
-    _dio0 = NULL;
-    _dio1 = NULL;
-    _dio2 = NULL;
-    _dio3 = NULL;
-    _dio4 = NULL;
-    _dio5 = NULL;
-    if (dio0 != NC)
-        _dio0 = new InterruptIn(dio0);
-    if (dio1 != NC)
-        _dio1 = new InterruptIn(dio1);
-    if (dio2 != NC)
-        _dio2 = new InterruptIn(dio2);
-    if (dio3 != NC)
-        _dio3 = new InterruptIn(dio3);
-    if (dio4 != NC)
-        _dio4 = new InterruptIn(dio4);
-    if (dio5 != NC)
-        _dio5 = new DigitalIn(dio5);
-    
-    Reset( );
-    
-    IoInit( );
-    
-    RxChainCalibration( );
-    
-    SetOpMode( RF_OPMODE_SLEEP );
-    
-    IoIrqInit( dioIrq );
-    
-    RadioRegistersInit( );
-    
-    SetModem( MODEM_FSK );
-}
-
-SX1276Generic::~SX1276Generic()
-{
-    if (_antSwitch)
-        delete _antSwitch;
-    if (_antSwitchTX)
-        delete _antSwitchTX;
-    if (_antSwitchTXBoost)
-        delete _antSwitchTXBoost;
-    
-    if (_tcxo) {
-        *_tcxo = 0;
-        delete (_tcxo);
-    }
-    delete _reset;
-    delete _spi;
-    delete _nss;
-    
-    if (_dio0)
-        delete _dio0;
-    if (_dio1)
-        delete _dio1;
-    if (_dio2)
-        delete _dio2;
-    if (_dio3)
-        delete _dio3;
-    if (_dio4)
-        delete _dio4;
-    if (_dio5)
-        delete _dio5;
-}
-
-
-//-------------------------------------------------------------------------
-//                      Board relative functions
-//-------------------------------------------------------------------------
-uint8_t SX1276Generic::DetectBoardType( void )
-{
-    return boardConnected;
-}
-
-void SX1276Generic::IoInit( void )
-{
-    if (_tcxo)
-        *_tcxo = 1;
-    AntSwInit( );
-    SpiInit( );
-}
-
-
-void SX1276Generic::SpiInit( void )
-{
-    *_nss = 1;
-    _spi->format( 8,0 );
-    uint32_t frequencyToSet = 8000000;
-    _spi->frequency( frequencyToSet );
-    wait_ms(100);
-}
-
-void SX1276Generic::IoIrqInit( DioIrqHandler *irqHandlers )
-{
-    if (_dio0)
-        _dio0->rise(callback(this, static_cast< Trigger > ( irqHandlers[0] )));
-    if (_dio1)
-        _dio1->rise(callback(this, static_cast< Trigger > ( irqHandlers[1] )));
-    if (_dio2)
-        _dio2->rise(callback(this, static_cast< Trigger > ( irqHandlers[2] )));
-    if (_dio3)
-        _dio3->rise(callback(this, static_cast< Trigger > ( irqHandlers[3] )));
-    if (_dio4)
-        _dio4->rise(callback(this, static_cast< Trigger > ( irqHandlers[4] )));
-}
-
-void SX1276Generic::IoDeInit( void )
-{
-    //nothing
-}
-
-void SX1276Generic::SetRfTxPower( int8_t power )
-{
-    uint8_t paConfig = 0;
-    uint8_t paDac = 0;
-    
-    paConfig = Read( REG_PACONFIG );
-    paDac = Read( REG_PADAC );
-    
-    paConfig = ( paConfig & RF_PACONFIG_PASELECT_MASK ) | GetPaSelect( this->settings.Channel );
-    paConfig = ( paConfig & RF_PACONFIG_MAX_POWER_MASK ) | 0x70;
-    
-    if( ( paConfig & RF_PACONFIG_PASELECT_PABOOST ) == RF_PACONFIG_PASELECT_PABOOST )
-    {
-        if( power > 17 )
-        {
-            paDac = ( paDac & RF_PADAC_20DBM_MASK ) | RF_PADAC_20DBM_ON;
-        }
-        else
-        {
-            paDac = ( paDac & RF_PADAC_20DBM_MASK ) | RF_PADAC_20DBM_OFF;
-        }
-        if( ( paDac & RF_PADAC_20DBM_ON ) == RF_PADAC_20DBM_ON )
-        {
-            if( power < 5 )
-            {
-                power = 5;
-            }
-            if( power > 20 )
-            {
-                power = 20;
-            }
-            paConfig = ( paConfig & RF_PACONFIG_OUTPUTPOWER_MASK ) | ( uint8_t )( ( uint16_t )( power - 5 ) & 0x0F );
-        }
-        else
-        {
-            if( power < 2 )
-            {
-                power = 2;
-            }
-            if( power > 17 )
-            {
-                power = 17;
-            }
-            paConfig = ( paConfig & RF_PACONFIG_OUTPUTPOWER_MASK ) | ( uint8_t )( ( uint16_t )( power - 2 ) & 0x0F );
-        }
-    }
-    else
-    {
-        if( power < -1 )
-        {
-            power = -1;
-        }
-        if( power > 14 )
-        {
-            power = 14;
-        }
-        paConfig = ( paConfig & RF_PACONFIG_OUTPUTPOWER_MASK ) | ( uint8_t )( ( uint16_t )( power + 1 ) & 0x0F );
-    }
-    Write( REG_PACONFIG, paConfig );
-    Write( REG_PADAC, paDac );
-}
-
-
-uint8_t SX1276Generic::GetPaSelect( uint32_t channel )
-{
-    if( channel > RF_MID_BAND_THRESH )
-    {
-        if (boardConnected == SX1276MB1LAS || boardConnected == RFM95_SX1276 || boardConnected == MURATA_SX1276)
-        {
-            return RF_PACONFIG_PASELECT_PABOOST;
-        }
-        else
-        {
-            return RF_PACONFIG_PASELECT_RFO;
-        }
-    }
-    else
-    {
-        return RF_PACONFIG_PASELECT_RFO;
-    }
-}
-
-void SX1276Generic::SetAntSwLowPower( bool status )
-{
-    if( isRadioActive != status )
-    {
-        isRadioActive = status;
-        
-        if( status == false )
-        {
-            AntSwInit( );
-        }
-        else
-        {
-            AntSwDeInit( );
-        }
-    }
-}
-
-void SX1276Generic::AntSwInit( void )
-{
-    if (_antSwitch)
-        *_antSwitch = 0;
-    if (boardConnected == MURATA_SX1276) {
-        *_antSwitchTX = 0;
-        *_antSwitchTXBoost = 0;
-    }
-}
-
-void SX1276Generic::AntSwDeInit( void )
-{
-    if (_antSwitch)
-        *_antSwitch = 0;
-    if (boardConnected == MURATA_SX1276) {
-        *_antSwitchTX = 0;
-        *_antSwitchTXBoost = 0;
-    }
-}
-
-
-void SX1276Generic::SetAntSw( uint8_t opMode )
-{
-    switch( opMode )
-    {
-        case RFLR_OPMODE_TRANSMITTER:
-            if (boardConnected == MURATA_SX1276) {
-                *_antSwitch = 0;// Murata-RX
-                if (Read( REG_PACONFIG) & RF_PACONFIG_PASELECT_PABOOST)
-                    *_antSwitchTXBoost = 1;
-                else
-                    *_antSwitchTX = 1; 	// alternate: antSwitchTXBoost = 1
-            } else {
-                if (_antSwitch)
-                    *_antSwitch = 1;
-            }
-            break;
-        case RFLR_OPMODE_RECEIVER:
-        case RFLR_OPMODE_RECEIVER_SINGLE:
-        case RFLR_OPMODE_CAD:
-            if (boardConnected == MURATA_SX1276) {
-                *_antSwitch = 1;  // Murata-RX
-                *_antSwitchTX = 0;
-                *_antSwitchTXBoost = 0;
-            } else {
-                if (_antSwitch)
-                    _antSwitch = 0;
-            }
-            break;
-        case RFLR_OPMODE_SLEEP:
-        case RFLR_OPMODE_STANDBY:
-        default:
-            if (boardConnected == MURATA_SX1276) {
-                *_antSwitch = 0;  //Murata-RX
-                *_antSwitchTX = 0;
-                *_antSwitchTXBoost = 0;
-            } else {
-                if (_antSwitch)
-                    *_antSwitch = 0;
-            }
-            break;
-    }
-}
-
-void SX1276Generic::SetTimeout(TimeoutTimer_t timer, timeoutFuncPtr func, int timeout_ms)
-{
-    switch(timer) {
-        case RXTimeoutTimer:
-            if (func)
-                rxTimeoutTimer.attach_us(callback(this, func), timeout_ms);
-            else
-                rxTimeoutTimer.detach();
-            break;
-        case TXTimeoutTimer:
-            if (func)
-                txTimeoutTimer.attach_us(callback(this, func), timeout_ms);
-            else
-                txTimeoutTimer.detach();
-            break;
-        case RXTimeoutSyncWordTimer:
-            if (func)
-                rxTimeoutSyncWord.attach_us(callback(this, func), timeout_ms);
-            else
-                rxTimeoutSyncWord.detach();
-            break;
-    }
-}
-
-bool SX1276Generic::CheckRfFrequency( uint32_t frequency )
-{
-    // Implement check. Currently all frequencies are supported
-    return true;
-}
-
-void SX1276Generic::Reset( void )
-{
-    _reset->output();
-    *_reset = 0;
-    wait_ms( 1 );
-    *_reset = 1;
-    _reset->input();	// I don't know my input again, maybe to save power (Helmut T)
-    wait_ms( 6 );
-}
-
-void SX1276Generic::Write( uint8_t addr, uint8_t data )
-{
-    Write( addr, &data, 1 );
-}
-
-uint8_t SX1276Generic::Read( uint8_t addr )
-{
-    uint8_t data;
-    Read( addr, &data, 1 );
-    return data;
-}
-
-void SX1276Generic::Write( uint8_t addr, void *buffer, uint8_t size )
-{
-    uint8_t i;
-    uint8_t *p = (uint8_t *)buffer;
-    
-    *_nss = 0; // what about SPI hold/release timing on fast MCUs? Helmut
-    _spi->write( addr | 0x80 );
-    for( i = 0; i < size; i++ )
-    {
-        _spi->write(*p++);
-    }
-    *_nss = 1;
-}
-
-void SX1276Generic::Read( uint8_t addr, void *buffer, uint8_t size )
-{
-    uint8_t i;
-    uint8_t *p = (uint8_t *)buffer;
-    
-    *_nss = 0; // what about SPI hold/release timing on fast MCUs? Helmut
-    _spi->write( addr & 0x7F );
-    for( i = 0; i < size; i++ )
-    {
-        *p++ = _spi->write( 0 );
-    }
-    *_nss = 1;
-}
-
-void SX1276Generic::WriteFifo( void *buffer, uint8_t size )
-{
-    Write( 0, buffer, size );
-}
-
-void SX1276Generic::ReadFifo( void *buffer, uint8_t size )
-{
-    Read( 0, buffer, size );
-}
-
-
-
-
-#endif // ARDUINO
--- a/sx1276/sx1276-arduino-hal.h	Fri Jun 30 16:08:05 2017 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,240 +0,0 @@
-
-/*
- * This file contains a copy of the master content sx1276-mbed-hal.h
- * with adaption for the Arduino environment
- * (c) 2017 Helmut Tschemernjak
- * 30826 Garbsen (Hannover) Germany
- */
-#ifdef ARDUINO
-
-/*
- (C) 2014 Semtech
- Description: -
- License: Revised BSD License, see LICENSE.TXT file include in the project
- Maintainers: Miguel Luis, Gregory Cristian and Nicolas Huguenin
- */
-
-/*
- * additional development to make it more generic across multiple OS versions
- * (c) 2017 Helmut Tschemernjak
- * 30826 Garbsen (Hannover) Germany
- */
-
-#ifndef __SX1276_ARDUINO_HAL_H__
-#define __SX1276_ARDUINO_HAL_H__
-#include "sx1276.h"
-
-
-
-/*!
- * Actual implementation of a SX1276 radio, includes some modifications to make it compatible with the MB1 LAS board
- */
-class SX1276Generic : public SX1276
-{
-protected:
-    /*!
-     * Antenna switch GPIO pins objects
-     */
-    DigitalOut *_antSwitch;
-    DigitalOut *_antSwitchTX;
-    DigitalOut *_antSwitchTXBoost;
-    
-    /*!
-     * SX1276 Reset pin
-     */
-    DigitalInOut *_reset;
-    
-    /*!
-     * TCXO being used with the Murata Module
-     */
-    DigitalOut *_tcxo;
-    
-    /*!
-     * SPI Interface
-     */
-    SPI *_spi; // mosi, miso, sclk
-    DigitalOut *_nss;
-    
-    /*!
-     * SX1276 DIO pins
-     */
-    InterruptIn *_dio0;
-    InterruptIn *_dio1;
-    InterruptIn *_dio2;
-    InterruptIn *_dio3;
-    InterruptIn *_dio4;
-    DigitalIn *_dio5;
-    
-    /*!
-     * Tx and Rx timers
-     */
-    Timeout txTimeoutTimer;
-    Timeout rxTimeoutTimer;
-    Timeout rxTimeoutSyncWord;
-    
-    
-private:
-    /*!
-     * triggers definition
-     */
-    typedef void (SX1276Generic::*Trigger)(void);
-    
-    
-    public:
-    SX1276Generic( RadioEvents_t *events, BoardType_t board,
-                  PinName mosi, PinName miso, PinName sclk, PinName nss, PinName reset,
-                  PinName dio0, PinName dio1, PinName dio2, PinName dio3, PinName dio4, PinName dio5,
-                  PinName antSwitch = NC, PinName antSwitchTX= NC, PinName antSwitchTXBoost = NC, PinName tcxo = NC);
-    
-    
-    SX1276Generic( RadioEvents_t *events );
-    
-    virtual ~SX1276Generic();
-    
-protected:
-    /*!
-     * @brief Initializes the radio I/Os pins interface
-     */
-    virtual void IoInit( void );
-    
-    /*!
-     * @brief Initializes the radio SPI
-     */
-    virtual void SpiInit( void );
-    
-    /*!
-     * @brief Initializes DIO IRQ handlers
-     *
-     * @param [IN] irqHandlers Array containing the IRQ callback functions
-     */
-    virtual void IoIrqInit( DioIrqHandler *irqHandlers );
-    
-    /*!
-     * @brief De-initializes the radio I/Os pins interface.
-     *
-     * \remark Useful when going in MCU lowpower modes
-     */
-    virtual void IoDeInit( void );
-
-    /*!
-     * @brief Gets the board PA selection configuration
-     *
-     * @param [IN] channel Channel frequency in Hz
-     * @retval PaSelect RegPaConfig PaSelect value
-     */
-    virtual uint8_t GetPaSelect( uint32_t channel );
-    
-    /*!
-     * @brief Set the RF Switch I/Os pins in Low Power mode
-     *
-     * @param [IN] status enable or disable
-     */
-    virtual void SetAntSwLowPower( bool status );
-    
-    /*!
-     * @brief Initializes the RF Switch I/Os pins interface
-     */
-    virtual void AntSwInit( void );
-    
-    /*!
-     * @brief De-initializes the RF Switch I/Os pins interface
-     *
-     * @remark Needed to decrease the power consumption in MCU lowpower modes
-     */
-    virtual void AntSwDeInit( void );
-    
-    /*!
-     * @brief Controls the antena switch if necessary.
-     *
-     * @remark see errata note
-     *
-     * @param [IN] opMode Current radio operating mode
-     */
-    virtual void SetAntSw( uint8_t opMode );
-    
-    /*
-     * The the Timeout for a given Timer.
-     */
-    virtual void SetTimeout(TimeoutTimer_t timer, timeoutFuncPtr, int timeout_ms = 0);
-    
-    public:
-    
-    /*!
-     * @brief Detect the board connected by reading the value of the antenna switch pin
-     */
-    virtual uint8_t DetectBoardType( void );
-    
-    /*!
-     * @brief Checks if the given RF frequency is supported by the hardware
-     *
-     * @param [IN] frequency RF frequency to be checked
-     * @retval isSupported [true: supported, false: unsupported]
-     */
-    virtual bool CheckRfFrequency( uint32_t frequency );
-    
-    /*!
-     * @brief Writes the radio register at the specified address
-     *
-     * @param [IN]: addr Register address
-     * @param [IN]: data New register value
-     */
-    virtual void Write ( uint8_t addr, uint8_t data ) ;
-    
-    /*!
-     * @brief Reads the radio register at the specified address
-     *
-     * @param [IN]: addr Register address
-     * @retval data Register value
-     */
-    virtual uint8_t Read ( uint8_t addr ) ;
-    
-    /*!
-     * @brief Writes multiple radio registers starting at address
-     *
-     * @param [IN] addr   First Radio register address
-     * @param [IN] buffer Buffer containing the new register's values
-     * @param [IN] size   Number of registers to be written
-     */
-    virtual void Write( uint8_t addr, void *buffer, uint8_t size ) ;
-    
-    /*!
-     * @brief Reads multiple radio registers starting at address
-     *
-     * @param [IN] addr First Radio register address
-     * @param [OUT] buffer Buffer where to copy the registers data
-     * @param [IN] size Number of registers to be read
-     */
-    virtual void Read ( uint8_t addr, void *buffer, uint8_t size ) ;
-    
-    /*!
-     * @brief Writes the buffer contents to the SX1276 FIFO
-     *
-     * @param [IN] buffer Buffer containing data to be put on the FIFO.
-     * @param [IN] size Number of bytes to be written to the FIFO
-     */
-    virtual void WriteFifo( void *buffer, uint8_t size ) ;
-    
-    /*!
-     * @brief Reads the contents of the SX1276 FIFO
-     *
-     * @param [OUT] buffer Buffer where to copy the FIFO read data.
-     * @param [IN] size Number of bytes to be read from the FIFO
-     */
-    virtual void ReadFifo( void *buffer, uint8_t size ) ;
-    
-    /*!
-     * @brief Reset the SX1276
-     */
-    virtual void Reset( void );
-
-    /*!
-     * \brief Sets the radio output power.
-     *
-     * @param [IN] power Sets the RF output power
-     */
-    virtual void SetRfTxPower( int8_t power );
-
-};
-
-#endif // __SX1276_ARDUINO_HAL_H__
-#endif // ARDUINO
--- a/sx1276/sx1276-mbed-hal.cpp	Fri Jun 30 16:08:05 2017 +0200
+++ b/sx1276/sx1276-mbed-hal.cpp	Tue Jul 11 13:32:34 2017 +0200
@@ -19,6 +19,10 @@
  * 30826 Garbsen (Hannover) Germany
  */
 
+#ifdef ARDUINO
+ #include "arduino-mbed.h"
+#endif
+
 #include "sx1276-mbed-hal.h"
 
 
@@ -56,7 +60,7 @@
         default:
             break;
     }
-    _spi = new SPI(mosi, miso, sclk );
+    _spi = new XSPI(mosi, miso, sclk );
     _nss = new DigitalOut(nss);
     
     _reset = new DigitalInOut(reset);
@@ -371,6 +375,8 @@
 
 bool SX1276Generic::CheckRfFrequency( uint32_t frequency )
 {
+    if (frequency > 1200000)
+        return false;
     // Implement check. Currently all frequencies are supported
     return true;
 }
--- a/sx1276/sx1276-mbed-hal.h	Fri Jun 30 16:08:05 2017 +0200
+++ b/sx1276/sx1276-mbed-hal.h	Tue Jul 11 13:32:34 2017 +0200
@@ -21,12 +21,19 @@
 
 #ifndef __SX1276_MBED_HAL_H__
 #define __SX1276_MBED_HAL_H__
+
+
 #include "sx1276.h"
 
 
+#ifdef __MBED__
+#define XSPI	SPI
+#endif
+
 
 /*!
- * Actual implementation of a SX1276 radio, includes some modifications to make it compatible with the MB1 LAS board
+ * Actual implementation of a SX1276 radio, includes some modifications to make it
+ * compatible with the MB1 LAS board
  */
 class SX1276Generic : public SX1276
 {
@@ -51,7 +58,7 @@
     /*!
      * SPI Interface
      */
-    SPI *_spi; // mosi, miso, sclk
+    XSPI *_spi; // mosi, miso, sclk
     DigitalOut *_nss;
     
     /*!
--- a/sx1276/sx1276.h	Fri Jun 30 16:08:05 2017 +0200
+++ b/sx1276/sx1276.h	Tue Jul 11 13:32:34 2017 +0200
@@ -23,8 +23,8 @@
 #define __SX1276_H__
 
 #include "radio.h"
-#include "./registers/sx1276Regs-Fsk.h"
-#include "./registers/sx1276Regs-LoRa.h"
+#include "sx1276Regs-Fsk.h"
+#include "sx1276Regs-LoRa.h"