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Diffstat (limited to 'libraries/EEPROM/EEPROM.h')
| -rw-r--r-- | libraries/EEPROM/EEPROM.h | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/libraries/EEPROM/EEPROM.h b/libraries/EEPROM/EEPROM.h deleted file mode 100644 index cde75db..0000000 --- a/libraries/EEPROM/EEPROM.h +++ /dev/null @@ -1,146 +0,0 @@ -/* - EEPROM.h - EEPROM library - Original Copyright (c) 2006 David A. Mellis. All right reserved. - New version by Christopher Andrews 2015. - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -*/ - -#ifndef EEPROM_h -#define EEPROM_h - -#include <inttypes.h> -#include <avr/eeprom.h> -#include <avr/io.h> - -/*** - EERef class. - - This object references an EEPROM cell. - Its purpose is to mimic a typical byte of RAM, however its storage is the EEPROM. - This class has an overhead of two bytes, similar to storing a pointer to an EEPROM cell. -***/ - -struct EERef{ - - EERef( const int index ) - : index( index ) {} - - //Access/read members. - uint8_t operator*() const { return eeprom_read_byte( (uint8_t*) index ); } - operator const uint8_t() const { return **this; } - - //Assignment/write members. - EERef &operator=( const EERef &ref ) { return *this = *ref; } - EERef &operator=( uint8_t in ) { return eeprom_write_byte( (uint8_t*) index, in ), *this; } - EERef &operator +=( uint8_t in ) { return *this = **this + in; } - EERef &operator -=( uint8_t in ) { return *this = **this - in; } - EERef &operator *=( uint8_t in ) { return *this = **this * in; } - EERef &operator /=( uint8_t in ) { return *this = **this / in; } - EERef &operator ^=( uint8_t in ) { return *this = **this ^ in; } - EERef &operator %=( uint8_t in ) { return *this = **this % in; } - EERef &operator &=( uint8_t in ) { return *this = **this & in; } - EERef &operator |=( uint8_t in ) { return *this = **this | in; } - EERef &operator <<=( uint8_t in ) { return *this = **this << in; } - EERef &operator >>=( uint8_t in ) { return *this = **this >> in; } - - EERef &update( uint8_t in ) { return in != *this ? *this = in : *this; } - - /** Prefix increment/decrement **/ - EERef& operator++() { return *this += 1; } - EERef& operator--() { return *this -= 1; } - - /** Postfix increment/decrement **/ - uint8_t operator++ (int){ - uint8_t ret = **this; - return ++(*this), ret; - } - - uint8_t operator-- (int){ - uint8_t ret = **this; - return --(*this), ret; - } - - int index; //Index of current EEPROM cell. -}; - -/*** - EEPtr class. - - This object is a bidirectional pointer to EEPROM cells represented by EERef objects. - Just like a normal pointer type, this can be dereferenced and repositioned using - increment/decrement operators. -***/ - -struct EEPtr{ - - EEPtr( const int index ) - : index( index ) {} - - operator const int() const { return index; } - EEPtr &operator=( int in ) { return index = in, *this; } - - //Iterator functionality. - bool operator!=( const EEPtr &ptr ) { return index != ptr.index; } - EERef operator*() { return index; } - - /** Prefix & Postfix increment/decrement **/ - EEPtr& operator++() { return ++index, *this; } - EEPtr& operator--() { return --index, *this; } - EEPtr operator++ (int) { return index++; } - EEPtr operator-- (int) { return index--; } - - int index; //Index of current EEPROM cell. -}; - -/*** - EEPROMClass class. - - This object represents the entire EEPROM space. - It wraps the functionality of EEPtr and EERef into a basic interface. - This class is also 100% backwards compatible with earlier Arduino core releases. -***/ - -struct EEPROMClass{ - - //Basic user access methods. - EERef operator[]( const int idx ) { return idx; } - uint8_t read( int idx ) { return EERef( idx ); } - void write( int idx, uint8_t val ) { (EERef( idx )) = val; } - void update( int idx, uint8_t val ) { EERef( idx ).update( val ); } - - //STL and C++11 iteration capability. - EEPtr begin() { return 0x00; } - EEPtr end() { return length(); } //Standards requires this to be the item after the last valid entry. The returned pointer is invalid. - uint16_t length() { return E2END + 1; } - - //Functionality to 'get' and 'put' objects to and from EEPROM. - template< typename T > T &get( int idx, T &t ){ - EEPtr e = idx; - uint8_t *ptr = (uint8_t*) &t; - for( int count = sizeof(T) ; count ; --count, ++e ) *ptr++ = *e; - return t; - } - - template< typename T > const T &put( int idx, const T &t ){ - EEPtr e = idx; - const uint8_t *ptr = (const uint8_t*) &t; - for( int count = sizeof(T) ; count ; --count, ++e ) (*e).update( *ptr++ ); - return t; - } -}; - -static EEPROMClass EEPROM; -#endif
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