io/inout.h

317 lines
8.0 KiB
C++

/*
* Copyright (c) by BlackMark 2015-2018
* Date 26/04/2018
* Version 3.0
*/
#ifndef INOUT_H
#define INOUT_H
//////////////////////////////////////////////////////////////////////////
#include <stdint.h>
#include <avr/io.h>
/************************************************************************/
//////////////////////////////////////////////////////////////////////////
namespace InOut
{
#define AVR_DIP40 defined (__AVR_ATmega32A__) || defined (__AVR_ATmega644P__) || defined (__AVR_ATmega1284P__)
#define AVR_DIP28 defined (__AVR_ATmega8__) || defined (__AVR_ATmega8A__) || defined (__AVR_ATmega168A__) || defined (__AVR_ATmega328P__)
#define AVR_DIP8 defined (__AVR_ATtiny13A__) || defined (__AVR_ATtiny85__)
#if AVR_DIP40
static constexpr volatile uint8_t *IO_PINA = &PINA;
static constexpr volatile uint8_t *IO_DDRA = &DDRA;
static constexpr volatile uint8_t *IO_PORTA = &PORTA;
#else
static constexpr volatile uint8_t *IO_PINA = nullptr;
static constexpr volatile uint8_t *IO_DDRA = nullptr;
static constexpr volatile uint8_t *IO_PORTA = nullptr;
#endif
#if AVR_DIP40 || AVR_DIP28 || AVR_DIP8
static constexpr volatile uint8_t *IO_PINB = &PINB;
static constexpr volatile uint8_t *IO_DDRB = &DDRB;
static constexpr volatile uint8_t *IO_PORTB = &PORTB;
#else
static constexpr volatile uint8_t *IO_PINB = nullptr;
static constexpr volatile uint8_t *IO_DDRB = nullptr;
static constexpr volatile uint8_t *IO_PORTB = nullptr;
#endif
#if AVR_DIP40 || AVR_DIP28
static constexpr volatile uint8_t *IO_PINC = &PINC;
static constexpr volatile uint8_t *IO_DDRC = &DDRC;
static constexpr volatile uint8_t *IO_PORTC = &PORTC;
#else
static constexpr volatile uint8_t *IO_PINC = nullptr;
static constexpr volatile uint8_t *IO_DDRC = nullptr;
static constexpr volatile uint8_t *IO_PORTC = nullptr;
#endif
#if AVR_DIP40 || AVR_DIP28
static constexpr volatile uint8_t *IO_PIND = &PIND;
static constexpr volatile uint8_t *IO_DDRD = &DDRD;
static constexpr volatile uint8_t *IO_PORTD = &PORTD;
#else
static constexpr volatile uint8_t *IO_PIND = nullptr;
static constexpr volatile uint8_t *IO_DDRD = nullptr;
static constexpr volatile uint8_t *IO_PORTD = nullptr;
#endif
enum class Pin
{
#if AVR_DIP40
A0 = 0x00,
A1 = 0x01,
A2 = 0x02,
A3 = 0x03,
A4 = 0x04,
A5 = 0x05,
A6 = 0x06,
A7 = 0x07,
#endif
#if AVR_DIP40 || AVR_DIP28 || AVR_DIP8
B0 = 0x10,
B1 = 0x11,
B2 = 0x12,
B3 = 0x13,
B4 = 0x14,
B5 = 0x15,
#endif
#if AVR_DIP40 || AVR_DIP28
B6 = 0x16,
B7 = 0x17,
C0 = 0x20,
C1 = 0x21,
C2 = 0x22,
C3 = 0x23,
C4 = 0x24,
C5 = 0x25,
C6 = 0x26,
#endif
#if AVR_DIP40
C7 = 0x27,
#endif
#if AVR_DIP40 || AVR_DIP28
D0 = 0x30,
D1 = 0x31,
D2 = 0x32,
D3 = 0x33,
D4 = 0x34,
D5 = 0x35,
D6 = 0x36,
D7 = 0x37,
#endif
};
enum class Port
{
#if AVR_DIP40
A = Pin::A0,
#endif
#if AVR_DIP40 || AVR_DIP28 || AVR_DIP8
B = Pin::B0,
#endif
#if AVR_DIP40 || AVR_DIP28
C = Pin::C0,
D = Pin::D0,
#endif
};
enum class Dir
{
IN,
OUT
};
enum class Type
{
DDR,
PIN,
PORT
};
constexpr volatile uint8_t* getPort( Pin enmPin, Type enmType )
{
volatile uint8_t *vpui8Port = nullptr;
uint8_t ui8Port = static_cast<uint16_t>( enmPin ) >> 4 & 0x0F;
switch( ui8Port )
{
case 0:
{
if( enmType == Type::DDR )
vpui8Port = IO_DDRA;
else if( enmType == Type::PIN )
vpui8Port = IO_PINA;
else if( enmType == Type::PORT )
vpui8Port = IO_PORTA;
break;
}
case 1:
{
if( enmType == Type::DDR )
vpui8Port = IO_DDRB;
else if( enmType == Type::PIN )
vpui8Port = IO_PINB;
else if( enmType == Type::PORT )
vpui8Port = IO_PORTB;
break;
}
case 2:
{
if( enmType == Type::DDR )
vpui8Port = IO_DDRC;
else if( enmType == Type::PIN )
vpui8Port = IO_PINC;
else if( enmType == Type::PORT )
vpui8Port = IO_PORTC;
break;
}
case 3:
{
if( enmType == Type::DDR )
vpui8Port = IO_DDRD;
else if( enmType == Type::PIN )
vpui8Port = IO_PIND;
else if( enmType == Type::PORT )
vpui8Port = IO_PORTD;
break;
}
}
return vpui8Port;
}
constexpr uint8_t getPin( Pin enmPin )
{
return static_cast<uint16_t>( enmPin ) & 0x0F;
}
}
/************************************************************************/
//////////////////////////////////////////////////////////////////////////
template<InOut::Pin enmPin>
class InOutPin
{
public:
inline InOutPin() __attribute__( (always_inline) );
static inline void setDirection( InOut::Dir enmDir ) __attribute__( (always_inline) );
static inline void setPullup( bool bPullup ) __attribute__( (always_inline) );
static inline bool read() __attribute__( (always_inline) );
static inline void write( bool bValue ) __attribute__( (always_inline) );
};
//////////////////////////////////////////////////////////////////////////
template<InOut::Pin enmPin>
inline InOutPin<enmPin>::InOutPin()
{}
//////////////////////////////////////////////////////////////////////////
template<InOut::Pin enmPin>
inline void InOutPin<enmPin>::setDirection( InOut::Dir enmDir )
{
constexpr volatile uint8_t *vpui8DDR = InOut::getPort( enmPin, InOut::Type::DDR );
constexpr uint8_t ui8Pin = InOut::getPin( enmPin );
if( enmDir == InOut::Dir::OUT )
*vpui8DDR |= ( 1 << ui8Pin );
else
*vpui8DDR &= ~( 1 << ui8Pin );
}
//////////////////////////////////////////////////////////////////////////
template<InOut::Pin enmPin>
inline void InOutPin<enmPin>::setPullup( bool bPullup )
{
write( bPullup );
}
//////////////////////////////////////////////////////////////////////////
template<InOut::Pin enmPin>
inline bool InOutPin<enmPin>::read()
{
constexpr volatile uint8_t *vpui8PIN = InOut::getPort( enmPin, InOut::Type::PIN );
constexpr uint8_t ui8Pin = InOut::getPin( enmPin );
if( *vpui8PIN >> ui8Pin & 1 )
return true;
return false;
}
//////////////////////////////////////////////////////////////////////////
template<InOut::Pin enmPin>
inline void InOutPin<enmPin>::write( bool bValue )
{
constexpr volatile uint8_t *vpui8PORT = InOut::getPort( enmPin, InOut::Type::PORT );
constexpr uint8_t ui8Pin = InOut::getPin( enmPin );
if( bValue )
*vpui8PORT |= ( 1 << ui8Pin );
else
*vpui8PORT &= ~( 1 << ui8Pin );
}
/************************************************************************/
//////////////////////////////////////////////////////////////////////////
template<InOut::Port enmPort>
class InOutPort
{
public:
inline InOutPort() __attribute__( (always_inline) );
static inline void setDirection( InOut::Dir enmDir ) __attribute__( (always_inline) );
static inline void setPullup( bool bPullup ) __attribute__( (always_inline) );
static inline uint8_t read() __attribute__( (always_inline) );
static inline void write( uint8_t ui8Value ) __attribute__( (always_inline) );
};
//////////////////////////////////////////////////////////////////////////
template<InOut::Port enmPort>
inline InOutPort<enmPort>::InOutPort()
{}
//////////////////////////////////////////////////////////////////////////
template<InOut::Port enmPort>
inline void InOutPort<enmPort>::setDirection( InOut::Dir enmDir )
{
constexpr volatile uint8_t *vpui8DDR = InOut::getPort( static_cast<InOut::Pin>( enmPort ), InOut::Type::DDR );
*vpui8DDR = ( enmDir == InOut::Dir::OUT ) ? 0xFF : 0x00;
}
//////////////////////////////////////////////////////////////////////////
template<InOut::Port enmPort>
inline void InOutPort<enmPort>::setPullup( bool bPullup )
{
write( bPullup ? 0xFF : 0x00 );
}
//////////////////////////////////////////////////////////////////////////
template<InOut::Port enmPort>
inline uint8_t InOutPort<enmPort>::read()
{
constexpr volatile uint8_t *vpui8PIN = InOut::getPort( static_cast<InOut::Pin>( enmPort ), InOut::Type::PIN );
return *vpui8PIN;
}
//////////////////////////////////////////////////////////////////////////
template<InOut::Port enmPort>
inline void InOutPort<enmPort>::write( uint8_t ui8Value )
{
constexpr volatile uint8_t *vpui8PORT = InOut::getPort( static_cast<InOut::Pin>( enmPort ), InOut::Type::PORT );
*vpui8PORT = ui8Value;
}
#endif