Moved USBtoSerial demo the Projects directory, as it is simply an expanded CDC demo. Added const qualifier to Endpoint/Pipe stream write routines.
This commit is contained in:
Dean Camera
parent
c3dfc58707
commit
de70f0f1cf
36 changed files with 60 additions and 3582 deletions
120
Projects/USBtoSerial/Lib/RingBuff.c
Normal file
120
Projects/USBtoSerial/Lib/RingBuff.c
Normal file
|
|
@ -0,0 +1,120 @@
|
|||
/*
|
||||
LUFA Library
|
||||
Copyright (C) Dean Camera, 2009.
|
||||
|
||||
dean [at] fourwalledcubicle [dot] com
|
||||
www.fourwalledcubicle.com
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
|
||||
|
||||
Permission to use, copy, modify, and distribute this software
|
||||
and its documentation for any purpose and without fee is hereby
|
||||
granted, provided that the above copyright notice appear in all
|
||||
copies and that both that the copyright notice and this
|
||||
permission notice and warranty disclaimer appear in supporting
|
||||
documentation, and that the name of the author not be used in
|
||||
advertising or publicity pertaining to distribution of the
|
||||
software without specific, written prior permission.
|
||||
|
||||
The author disclaim all warranties with regard to this
|
||||
software, including all implied warranties of merchantability
|
||||
and fitness. In no event shall the author be liable for any
|
||||
special, indirect or consequential damages or any damages
|
||||
whatsoever resulting from loss of use, data or profits, whether
|
||||
in an action of contract, negligence or other tortious action,
|
||||
arising out of or in connection with the use or performance of
|
||||
this software.
|
||||
*/
|
||||
|
||||
#include "RingBuff.h"
|
||||
|
||||
void Buffer_Initialize(RingBuff_t* Buffer)
|
||||
{
|
||||
BUFF_ATOMIC_BLOCK
|
||||
{
|
||||
Buffer->InPtr = (RingBuff_Data_t*)&Buffer->Buffer;
|
||||
Buffer->OutPtr = (RingBuff_Data_t*)&Buffer->Buffer;
|
||||
Buffer->Elements = 0;
|
||||
}
|
||||
}
|
||||
|
||||
void Buffer_StoreElement(RingBuff_t* Buffer, RingBuff_Data_t Data)
|
||||
{
|
||||
BUFF_ATOMIC_BLOCK
|
||||
{
|
||||
#if defined(BUFF_DROPOLD)
|
||||
if (Buffer->Elements == BUFF_LENGTH)
|
||||
{
|
||||
Buffer->OutPtr++;
|
||||
|
||||
if (Buffer->OutPtr == &Buffer->Buffer[BUFF_LENGTH])
|
||||
Buffer->OutPtr = (RingBuff_Data_t*)&Buffer->Buffer;
|
||||
}
|
||||
else
|
||||
{
|
||||
Buffer->Elements++;
|
||||
}
|
||||
#elif defined(BUFF_DROPNEW)
|
||||
if (Buffer->Elements == BUFF_LENGTH)
|
||||
return;
|
||||
|
||||
Buffer->Elements++;
|
||||
#elif defined(BUFF_NODROPCHECK)
|
||||
Buffer->Elements++;
|
||||
#endif
|
||||
|
||||
*(Buffer->InPtr) = Data;
|
||||
Buffer->InPtr++;
|
||||
|
||||
if (Buffer->InPtr == &Buffer->Buffer[BUFF_LENGTH])
|
||||
Buffer->InPtr = (RingBuff_Data_t*)&Buffer->Buffer;
|
||||
}
|
||||
}
|
||||
|
||||
RingBuff_Data_t Buffer_GetElement(RingBuff_t* Buffer)
|
||||
{
|
||||
RingBuff_Data_t BuffData;
|
||||
|
||||
BUFF_ATOMIC_BLOCK
|
||||
{
|
||||
#if defined(BUFF_EMPTYRETURNSZERO)
|
||||
if (!(Buffer->Elements))
|
||||
return 0;
|
||||
#elif !defined(BUFF_NOEMPTYCHECK)
|
||||
#error No empty buffer check behaviour specified.
|
||||
#endif
|
||||
|
||||
BuffData = *(Buffer->OutPtr);
|
||||
|
||||
Buffer->OutPtr++;
|
||||
Buffer->Elements--;
|
||||
|
||||
if (Buffer->OutPtr == &Buffer->Buffer[BUFF_LENGTH])
|
||||
Buffer->OutPtr = (RingBuff_Data_t*)&Buffer->Buffer;
|
||||
}
|
||||
|
||||
return BuffData;
|
||||
}
|
||||
|
||||
#if defined(BUFF_USEPEEK)
|
||||
RingBuff_Data_t Buffer_PeekElement(const RingBuff_t* Buffer)
|
||||
{
|
||||
RingBuff_Data_t BuffData;
|
||||
|
||||
BUFF_ATOMIC_BLOCK
|
||||
{
|
||||
#if defined(BUFF_EMPTYRETURNSZERO)
|
||||
if (!(Buffer->Elements))
|
||||
return 0;
|
||||
#elif !defined(BUFF_NOEMPTYCHECK)
|
||||
#error No empty buffer check behaviour specified.
|
||||
#endif
|
||||
|
||||
BuffData = *(Buffer->OutPtr);
|
||||
}
|
||||
|
||||
return BuffData;
|
||||
}
|
||||
#endif
|
||||
116
Projects/USBtoSerial/Lib/RingBuff.h
Normal file
116
Projects/USBtoSerial/Lib/RingBuff.h
Normal file
|
|
@ -0,0 +1,116 @@
|
|||
/*
|
||||
LUFA Library
|
||||
Copyright (C) Dean Camera, 2009.
|
||||
|
||||
dean [at] fourwalledcubicle [dot] com
|
||||
www.fourwalledcubicle.com
|
||||
*/
|
||||
|
||||
/*
|
||||
Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
|
||||
|
||||
Permission to use, copy, modify, and distribute this software
|
||||
and its documentation for any purpose and without fee is hereby
|
||||
granted, provided that the above copyright notice appear in all
|
||||
copies and that both that the copyright notice and this
|
||||
permission notice and warranty disclaimer appear in supporting
|
||||
documentation, and that the name of the author not be used in
|
||||
advertising or publicity pertaining to distribution of the
|
||||
software without specific, written prior permission.
|
||||
|
||||
The author disclaim all warranties with regard to this
|
||||
software, including all implied warranties of merchantability
|
||||
and fitness. In no event shall the author be liable for any
|
||||
special, indirect or consequential damages or any damages
|
||||
whatsoever resulting from loss of use, data or profits, whether
|
||||
in an action of contract, negligence or other tortious action,
|
||||
arising out of or in connection with the use or performance of
|
||||
this software.
|
||||
*/
|
||||
|
||||
/* Buffer Configuration: */
|
||||
/* Buffer length - select static size of created ring buffers: */
|
||||
#define BUFF_STATICSIZE 128 // Set to the static ring buffer size for all ring buffers (place size after define)
|
||||
|
||||
/* Volatile mode - uncomment to make buffers volatile, for use in ISRs, etc: */
|
||||
#define BUFF_VOLATILE // Uncomment to cause all ring buffers to become volatile (and atomic if multi-byte) in access
|
||||
|
||||
/* Drop mode - select behaviour when Buffer_StoreElement called on a full buffer: */
|
||||
#define BUFF_DROPOLD // Uncomment to cause full ring buffers to drop the oldest character to make space when full
|
||||
// #define BUFF_DROPNEW // Uncomment to cause full ring buffers to drop the new character when full
|
||||
// #define BUFF_NODROPCHECK // Uncomment to ignore full ring buffer checks - checking left to user!
|
||||
|
||||
/* Underflow behaviour - select behaviour when Buffer_GetElement is called with an empty ring buffer: */
|
||||
//#define BUFF_EMPTYRETURNSZERO // Uncomment to return 0 when an empty ring buffer is read
|
||||
#define BUFF_NOEMPTYCHECK // Uncomment to disable checking of empty ring buffers - checking left to user!
|
||||
|
||||
/* Buffer storage type - set the datatype for the stored data */
|
||||
#define BUFF_DATATYPE uint8_t // Change to the data type that is going to be stored into the buffer
|
||||
|
||||
/* Peek routine - uncomment to include the peek routine (fetches next byte without removing it from the buffer */
|
||||
//#define BUFF_USEPEEK
|
||||
|
||||
#ifndef _RINGBUFF_H_
|
||||
#define _RINGBUFF_H_
|
||||
|
||||
/* Includes: */
|
||||
#include <avr/io.h>
|
||||
#include <avr/interrupt.h>
|
||||
#include <util/atomic.h>
|
||||
#include <limits.h>
|
||||
|
||||
#include <LUFA/Common/Common.h>
|
||||
|
||||
/* Defines and checks: */
|
||||
#if defined(BUFF_STATICSIZE)
|
||||
#define BUFF_LENGTH BUFF_STATICSIZE
|
||||
#else
|
||||
#error No buffer length specified!
|
||||
#endif
|
||||
|
||||
#if !(defined(BUFF_DROPOLD) || defined(BUFF_DROPNEW) || defined(BUFF_NODROPCHECK))
|
||||
#error No buffer drop mode specified.
|
||||
#endif
|
||||
|
||||
#if !defined(BUFF_DATATYPE)
|
||||
#error Ringbuffer storage data type not specified.
|
||||
#endif
|
||||
|
||||
#if defined(BUFF_VOLATILE)
|
||||
#define BUFF_MODE volatile
|
||||
#define BUFF_ATOMIC_BLOCK ATOMIC_BLOCK(ATOMIC_RESTORESTATE)
|
||||
#else
|
||||
#define BUFF_MODE
|
||||
#define BUFF_ATOMIC_BLOCK
|
||||
#endif
|
||||
|
||||
#if (BUFF_STATICSIZE > LONG_MAX)
|
||||
#define RingBuff_Elements_t uint64_t
|
||||
#elif (BUFF_STATICSIZE > INT_MAX)
|
||||
#define RingBuff_Elements_t uint32_t
|
||||
#elif (BUFF_STATICSIZE > CHAR_MAX)
|
||||
#define RingBuff_Elements_t uint16_t
|
||||
#else
|
||||
#define RingBuff_Elements_t uint8_t
|
||||
#endif
|
||||
|
||||
/* Type Defines: */
|
||||
typedef BUFF_DATATYPE RingBuff_Data_t;
|
||||
|
||||
typedef BUFF_MODE struct
|
||||
{
|
||||
RingBuff_Data_t Buffer[BUFF_LENGTH];
|
||||
RingBuff_Data_t* InPtr;
|
||||
RingBuff_Data_t* OutPtr;
|
||||
RingBuff_Elements_t Elements;
|
||||
} RingBuff_t;
|
||||
|
||||
/* Function Prototypes: */
|
||||
void Buffer_Initialize(RingBuff_t* Buff);
|
||||
void Buffer_StoreElement(RingBuff_t* Buffer, RingBuff_Data_t Data);
|
||||
RingBuff_Data_t Buffer_GetElement(RingBuff_t* Buffer);
|
||||
#if defined(BUFF_USEPEEK)
|
||||
RingBuff_Data_t Buffer_PeekElement(const RingBuff_t* Buffer);
|
||||
#endif
|
||||
|
||||
#endif
|
||||
Loading…
Add table
Add a link
Reference in a new issue