Add sync level documentation to classes

Document public classes to indicate level of protection provided.

hal/api/AnalogIn.h

@@ -25,6 +25,8 @@
 namespace mbed {
 
 /** An analog input, used for reading the voltage on a pin
+ *
+ * @Note Synchronization level: Thread safe
  *
  * Example:
  * @code

hal/api/AnalogOut.h

@@ -25,6 +25,8 @@
 namespace mbed {
 
 /** An analog output, used for setting the voltage on a pin
+ *
+ * @Note Synchronization level: Thread safe
  *
  * Example:
  * @code

hal/api/BusIn.h

@@ -22,6 +22,8 @@
 namespace mbed {
 
 /** A digital input bus, used for reading the state of a collection of pins
+ *
+ * @Note Synchronization level: Thread safe
  */
 class BusIn {
 

hal/api/BusInOut.h

@@ -21,6 +21,8 @@
 namespace mbed {
 
 /** A digital input output bus, used for setting the state of a collection of pins
+ *
+ * @Note Synchronization level: Thread safe
  */
 class BusInOut {
 

hal/api/BusOut.h

@@ -30,6 +30,8 @@ public:
      *
      *  @param p<n> DigitalOut pin to connect to bus bit <n> (p5-p30, NC)
      *
+     *  @Note Synchronization level: Thread safe
+     *
      *  @note
      *  It is only required to specify as many pin variables as is required
      *  for the bus; the rest will default to NC (not connected)

hal/api/CAN.h

@@ -27,6 +27,8 @@
 namespace mbed {
 
 /** CANMessage class
+ *
+ * @Note Synchronization level: Thread safe
  */
 class CANMessage : public CAN_Message {
 

hal/api/CThunk.h

@@ -71,6 +71,11 @@
 /* IRQ/Exception compatible thunk entry function */
 typedef void (*CThunkEntry)(void);
 
+/**
+ * Class for created a pointer with data bound to it
+ *
+ * @Note Synchronization level: Not protected
+ */
 template<class T>
 class CThunk
 {

hal/api/CallChain.h

@@ -25,6 +25,8 @@ namespace mbed {
  * sequence using CallChain::call(). Used mostly by the interrupt chaining code,
  * but can be used for other purposes.
  *
+ * @Note Synchronization level: Not protected
+ *
  * Example:
  * @code
  * #include "mbed.h"

hal/api/Callback.h

@@ -23,6 +23,8 @@ namespace mbed {
 
 
 /** Callback class based on template specialization
+ *
+ * @Note Synchronization level: Not protected
  */
 template <typename F>
 class Callback;

hal/api/CircularBuffer.h

@@ -21,6 +21,8 @@
 namespace mbed {
 
 /** Templated Circular buffer class
+ *
+ *  @Note Synchronization level: Interrupt safe
  */
 template<typename T, uint32_t BufferSize, typename CounterType = uint32_t>
 class CircularBuffer {

hal/api/DigitalIn.h

@@ -24,6 +24,8 @@
 namespace mbed {
 
 /** A digital input, used for reading the state of a pin
+ *
+ * @Note Synchronization level: Interrupt safe
  *
  * Example:
  * @code

hal/api/DigitalInOut.h

@@ -24,6 +24,8 @@
 namespace mbed {
 
 /** A digital input/output, used for setting or reading a bi-directional pin
+ *
+ * @Note Synchronization level: Interrupt safe
  */
 class DigitalInOut {
 

hal/api/DigitalOut.h

@@ -23,6 +23,8 @@
 namespace mbed {
 
 /** A digital output, used for setting the state of a pin
+ *
+ * @Note Synchronization level: Interrupt safe
  *
  * Example:
  * @code

hal/api/DirHandle.h

@@ -44,6 +44,8 @@ namespace mbed {
  *  The root directory is considered to contain all FileLike and
  *  FileSystemLike objects, so the DIR* returned by opendir("/") will
  *  reflect this.
+ *
+ *  @Note Synchronization level: Set by subclass
  */
 class DirHandle {
 

hal/api/Ethernet.h

@@ -23,6 +23,8 @@
 namespace mbed {
 
 /** An ethernet interface, to use with the ethernet pins.
+ *
+ * @Note Synchronization level: Not protected
  *
  * Example:
  * @code

hal/api/FileHandle.h

@@ -38,6 +38,8 @@ namespace mbed {
  *
  * No one ever directly tals to/instanciates a FileHandle - it gets
  *  created by FileSystem, and wrapped up by stdio.
+ *
+ * @Note Synchronization level: Set by subclass
  */
 class FileHandle {
 

hal/api/FileLike.h

@@ -25,6 +25,8 @@ namespace mbed {
  *  A file-like object is one that can be opened with fopen by
  *  fopen("/name", mode). It is intersection of the classes Base and
  *  FileHandle.
+ *
+ *  @Note Synchronization level: Set by subclass
  */
 class FileLike : public FileHandle, public FileBase {
 

hal/api/FileSystemLike.h

@@ -29,6 +29,8 @@ namespace mbed {
  *
  *  Implementations must define at least open (the default definitions
  *  of the rest of the functions just return error values).
+ *
+ * @Note Synchronization level: Set by subclass
  */
 class FileSystemLike : public FileBase {
 

hal/api/I2C.h

@@ -31,6 +31,8 @@
 namespace mbed {
 
 /** An I2C Master, used for communicating with I2C slave devices
+ *
+ * @Note Synchronization level: Thread safe
  *
  * Example:
  * @code

hal/api/I2CSlave.h

@@ -25,6 +25,8 @@
 namespace mbed {
 
 /** An I2C Slave, used for communicating with an I2C Master device
+ *
+ * @Note Synchronization level: Not protected
  *
  * Example:
  * @code

hal/api/InterruptIn.h

@@ -28,6 +28,8 @@
 namespace mbed {
 
 /** A digital interrupt input, used to call a function on a rising or falling edge
+ *
+ * @Note Synchronization level: Interrupt safe
  *
  * Example:
  * @code

hal/api/InterruptManager.h

@@ -10,6 +10,8 @@
 namespace mbed {
 
 /** Use this singleton if you need to chain interrupt handlers.
+ *
+ * @Note Synchronization level: Thread safe
  *
  * Example (for LPC1768):
  * @code

hal/api/LocalFileSystem.h

@@ -59,6 +59,8 @@ protected:
  *  mbed Microcontroller. Once created, the standard C file access functions are used to open,
  *  read and write files.
  *
+ * @Note Synchronization level: Thread safe
+ *
  * Example:
  * @code
  * #include "mbed.h"

hal/api/LowPowerTicker.h

@@ -26,6 +26,8 @@
 namespace mbed {
 
 /** Low Power Ticker
+ *
+ * @Note Synchronization level: Interrupt safe
  */
 class LowPowerTicker : public Ticker {
 

hal/api/LowPowerTimeout.h

@@ -26,6 +26,8 @@
 namespace mbed {
 
 /** Low Power Timout
+ *
+ * @Note Synchronization level: Interrupt safe
  */
 class LowPowerTimeout : public LowPowerTicker {
 

hal/api/LowPowerTimer.h

@@ -26,6 +26,8 @@
 namespace mbed {
 
 /** Low power timer
+ *
+ * @Note Synchronization level: Interrupt safe
  */
 class LowPowerTimer : public Timer {
 

hal/api/PortIn.h

@@ -26,6 +26,8 @@
 namespace mbed {
 
 /** A multiple pin digital input
+ *
+ * @Note Synchronization level: Interrupt safe
  *
  *  Example:
  * @code

hal/api/PortInOut.h

@@ -26,6 +26,8 @@
 namespace mbed {
 
 /** A multiple pin digital in/out used to set/read multiple bi-directional pins
+ *
+ * @Note Synchronization level: Interrupt safe
  */
 class PortInOut {
 public:

hal/api/PortOut.h

@@ -25,6 +25,8 @@
 
 namespace mbed {
 /** A multiple pin digital out
+ *
+ * @Note Synchronization level: Interrupt safe
  *
  * Example:
  * @code

hal/api/PwmOut.h

@@ -25,6 +25,8 @@
 namespace mbed {
 
 /** A pulse-width modulation digital output
+ *
+ * @Note Synchronization level: Interrupt safe
  *
  * Example
  * @code

hal/api/RawSerial.h

@@ -32,6 +32,8 @@ namespace mbed {
  * Can be used for Full Duplex communication, or Simplex by specifying
  * one pin as NC (Not Connected)
  *
+ * @Note Synchronization level: Not protected
+ *
  * Example:
  * @code
  * // Send a char to the PC

hal/api/SPI.h

@@ -39,6 +39,8 @@ namespace mbed {
  * Most SPI devices will also require Chip Select and Reset signals. These
  * can be controlled using <DigitalOut> pins
  *
+ * @Note Synchronization level: Thread safe
+ *
  * Example:
  * @code
  * // Send a byte to a SPI slave, and record the response

hal/api/SPISlave.h

@@ -28,6 +28,8 @@ namespace mbed {
  *
  * The default format is set to 8-bits, mode 0, and a clock frequency of 1MHz
  *
+ * @Note Synchronization level: Not protected
+ *
  * Example:
  * @code
  * // Reply to a SPI master as slave

hal/api/Serial.h

@@ -31,6 +31,8 @@ namespace mbed {
  * Can be used for Full Duplex communication, or Simplex by specifying
  * one pin as NC (Not Connected)
  *
+ * @Note Synchronization level: Thread safe
+ *
  * Example:
  * @code
  * // Print "Hello World" to the PC

hal/api/SerialBase.h

@@ -33,6 +33,8 @@ namespace mbed {
 
 /** A base class for serial port implementations
  * Can't be instantiated directly (use Serial or RawSerial)
+ *
+ * @Note Synchronization level: Set by subclass
  */
 class SerialBase {
 

hal/api/Stream.h

@@ -26,6 +26,10 @@ extern void mbed_set_unbuffered_stream(FILE *_file);
 extern int mbed_getc(FILE *_file);
 extern char* mbed_gets(char *s, int size, FILE *_file);
 
+/** File stream
+ *
+ * @Note Synchronization level: Set by subclass
+ */
 class Stream : public FileLike {
 
 public:

hal/api/Ticker.h

@@ -25,6 +25,8 @@ namespace mbed {
  *
  *  You can use as many seperate Ticker objects as you require.
  *
+ * @Note Synchronization level: Interrupt safe
+ *
  * Example:
  * @code
  * // Toggle the blinking led after 5 seconds

hal/api/Timeout.h

@@ -24,6 +24,8 @@ namespace mbed {
  *
  * You can use as many seperate Timeout objects as you require.
  *
+ * @Note Synchronization level: Interrupt safe
+ *
  * Example:
  * @code
  * // Blink until timeout.

hal/api/Timer.h

@@ -22,6 +22,8 @@
 namespace mbed {
 
 /** A general purpose timer
+ *
+ * @Note Synchronization level: Interrupt safe
  *
  * Example:
  * @code

hal/api/TimerEvent.h

@@ -22,7 +22,9 @@
 namespace mbed {
 
 /** Base abstraction for timer interrupts
-*/
+ *
+ * @Note Synchronization level: Interrupt safe
+ */
 class TimerEvent {
 public:
     TimerEvent();

hal/api/Transaction.h

@@ -34,6 +34,8 @@ typedef struct {
 } transaction_t;
 
 /** Transaction class defines a transaction.
+ *
+ * @Note Synchronization level: Not protected
  */
 template<typename Class>
 class Transaction {

hal/api/rtc_time.h

@@ -58,6 +58,8 @@ extern "C" {
  *
  * @param t Number of seconds since January 1, 1970 (the UNIX timestamp)
  *
+ * @Note Synchronization level: Thread safe
+ *
  * Example:
  * @code
  * #include "mbed.h"
@@ -71,7 +73,7 @@ void set_time(time_t t);
 
 /** Attach an external RTC to be used for the C time functions
  *
- * Do not call this function from an interrupt while an RTC read/write operation may be occurring 
+ * @Note Synchronization level: Thread safe
  *
  * @param read_rtc pointer to function which returns current UNIX timestamp
  * @param write_rtc pointer to function which sets current UNIX timestamp, can be NULL