Rename FunctionAttributes.h to Attributes.h, as some attributes are applicable to variables also. Add new ATTR_NOINIT attribute for global variables.

Add the beginnings of a SDP implentation to the incomplete BluetoothHost demo.

Add const attribute to the Mass Storage Host driver functions where it was applicable, but missing.

2 files changed, 17 insertions, 8 deletions

diff --git a/LUFA/Common/FunctionAttributes.h b/LUFA/Common/Attributes.h
index a3c9a8a3a..62d40734a 100644
--- a/LUFA/Common/FunctionAttributes.h
+++ b/LUFA/Common/Attributes.h
@@ -29,11 +29,12 @@
 */

 

 /** \file

- *  \brief AVR-GCC special function attribute macros.

+ *  \brief AVR-GCC special function/variable attribute macros.

  *

- *  This file contains macros for applying GCC specific attributes to functions to control various optimizer

- *  and code generation features of the compiler. Attributes may be placed in the function prototype in any

- *  order, and multiple attributes can be specified for a single function via a space separated list.

+ *  This file contains macros for applying GCC specific attributes to functions and variables to control various

+ *  optimizer and code generation features of the compiler. Attributes may be placed in the function prototype 

+ *  or variable declaration in any order, and multiple attributes can be specified for a single item via a space

+ *  separated list.

  *

  *  On incompatible versions of GCC or on other compilers, these macros evaluate to nothing unless they are

  *  critical to the code's function and thus must throw a compiler error when used.

@@ -43,9 +44,10 @@
  */

  

 /** \ingroup Group_Common

- *  @defgroup Group_FuncAttr Function Attributes

+ *  @defgroup Group_GCCAttr Function/Variable Attributes

  *

- *  Macros for easy access GCC function attributes, which can be applied to function prototypes.

+ *  Macros for easy access GCC function and variable attributes, which can be applied to function prototypes or

+ *  variable attributes.

  *

  *  @{

  */

@@ -110,6 +112,13 @@
 				 *  identical name (in which case the weak reference is discarded at link time).

 				 */

 				#define ATTR_WEAK                   __attribute__ ((weak))

+				

+				/** Forces the compiler to not automatically zero the given global variable on startup, so that the

+				 *  current RAM contents is retained. Under most conditions this value will be random due to the

+				 *  behaviour of volatile memory once power is removed, but may be used in some specific circumstances,

+				 *  like the passing of values back after a system watchdog reset.

+				 */

+				#define ATTR_NO_INIT                __attribute__ ((section (".noinit")))

 			#endif

 

 			/** Places the function in one of the initialization sections, which execute before the main function

diff --git a/LUFA/Common/Common.h b/LUFA/Common/Common.h
index f64de8ff8..5f1b2eae5 100644
--- a/LUFA/Common/Common.h
+++ b/LUFA/Common/Common.h
@@ -32,7 +32,7 @@
  *  \brief Common library convenience macros and functions.

  *

  *  This file contains macros which are common to all library elements, and which may be useful in user code. It

- *  also includes other common headers, such as Atomic.h, FunctionAttributes.h and BoardTypes.h.

+ *  also includes other common headers, such as Atomic.h, Attributes.h and BoardTypes.h.

  */

  

 /** @defgroup Group_Common Common Utility Headers - LUFA/Drivers/Common/Common.h

@@ -59,7 +59,7 @@
 	/* Includes: */

 		#include <avr/io.h>

 	

-		#include "FunctionAttributes.h"

+		#include "Attributes.h"

 		#include "BoardTypes.h"

 

 	/* Public Interface - May be used in end-application: */