X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/0019fbd1294ccc9ecb0ac4ddb5d8c71efcf9597f..a7dd98444674e407ef58d70d60b3d89fd548cd58:/LUFA/Drivers/Misc/RingBuffer.h

diff --git a/LUFA/Drivers/Misc/RingBuffer.h b/LUFA/Drivers/Misc/RingBuffer.h
index dd34e99ca..023cc25c4 100644
--- a/LUFA/Drivers/Misc/RingBuffer.h
+++ b/LUFA/Drivers/Misc/RingBuffer.h
@@ -29,7 +29,7 @@
 */
 
 /** \file
- *  \brief Lightweight ring buffer, for fast insertion/deletion.
+ *  \brief Lightweight ring buffer, for fast insertion/deletion of bytes.
  *
  *  Lightweight ring buffer, for fast insertion/deletion. Multiple buffers can be created of
  *  different sizes to suit different needs.
@@ -41,7 +41,8 @@
  */
  
 /** \ingroup Group_MiscDrivers
- *  @defgroup Group_RingBuff Generic Byte Ring Buffer - LUFA/Drivers/Misc/RingBuffer.h
+ *  \defgroup Group_RingBuff Generic Byte Ring Buffer - LUFA/Drivers/Misc/RingBuffer.h
+ *  \brief Lightweight ring buffer, for fast insertion/deletion of bytes.
  *
  *  \section Sec_Dependencies Module Source Dependencies
  *  The following files must be built with any user project that uses this module:
@@ -65,7 +66,7 @@
  *      RingBuffer_t Buffer;
  *      uint8_t      BufferData[128];
  *
- *      // Initialise the buffer with the created storage array
+ *      // Initialize the buffer with the created storage array
  *      RingBuffer_InitBuffer(&Buffer, BufferData, sizeof(BufferData));
  *
  *      // Insert some data into the buffer
@@ -93,10 +94,6 @@
 #define __RING_BUFFER_H__
 
 	/* Includes: */
-		#include <util/atomic.h>
-		#include <stdint.h>
-		#include <stdbool.h>
-
 		#include "../../Common/Common.h"
 
 	/* Type Defines: */
@@ -128,15 +125,17 @@
 		{
 			GCC_FORCE_POINTER_ACCESS(Buffer);
 
-			ATOMIC_BLOCK(ATOMIC_RESTORESTATE)
-			{	
-				Buffer->In     = DataPtr;
-				Buffer->Out    = DataPtr;
-				Buffer->Start  = &DataPtr[0];
-				Buffer->End    = &DataPtr[Size];
-				Buffer->Size   = Size;
-				Buffer->Count  = 0;
-			}
+			uint_reg_t CurrentGlobalInt = GetGlobalInterruptMask();
+			GlobalInterruptDisable();
+	
+			Buffer->In     = DataPtr;
+			Buffer->Out    = DataPtr;
+			Buffer->Start  = &DataPtr[0];
+			Buffer->End    = &DataPtr[Size];
+			Buffer->Size   = Size;
+			Buffer->Count  = 0;
+
+			SetGlobalInterruptMask(CurrentGlobalInt);
 		}
 
 		/** Retrieves the minimum number of bytes stored in a particular buffer. This value is computed
@@ -156,11 +155,12 @@
 		{
 			uint16_t Count;
 
-			ATOMIC_BLOCK(ATOMIC_RESTORESTATE)
-			{
-				Count = Buffer->Count;
-			}
+			uint_reg_t CurrentGlobalInt = GetGlobalInterruptMask();
+			GlobalInterruptDisable();
+			
+			Count = Buffer->Count;
 
+			SetGlobalInterruptMask(CurrentGlobalInt);
 			return Count;
 		}
 
@@ -213,10 +213,12 @@
 			if (++Buffer->In == Buffer->End)
 			  Buffer->In = Buffer->Start;
 
-			ATOMIC_BLOCK(ATOMIC_RESTORESTATE)
-			{
-				Buffer->Count++;
-			}
+			uint_reg_t CurrentGlobalInt = GetGlobalInterruptMask();
+			GlobalInterruptDisable();
+			
+			Buffer->Count++;
+
+			SetGlobalInterruptMask(CurrentGlobalInt);
 		}
 
 		/** Removes an element from the ring buffer.
@@ -238,10 +240,12 @@
 			if (++Buffer->Out == Buffer->End)
 			  Buffer->Out = Buffer->Start;
 
-			ATOMIC_BLOCK(ATOMIC_RESTORESTATE)
-			{
-				Buffer->Count--;
-			}
+			uint_reg_t CurrentGlobalInt = GetGlobalInterruptMask();
+			GlobalInterruptDisable();
+			
+			Buffer->Count--;
+
+			SetGlobalInterruptMask(CurrentGlobalInt);
 
 			return Data;
 		}