Rewrote interface to make sure port and pin lookup are done at compile time

This commit is contained in:
BlackMark 2018-04-26 15:23:42 +02:00
parent 093c0a6a02
commit a69465fca0

457
inout.h
View File

@ -1,7 +1,7 @@
/*
* Copyright (c) by BlackMark 2015-2018
* Date 24/04/2018
* Version 2.8
* Date 26/04/2018
* Version 3.0
*/
#ifndef INOUT_H
@ -12,56 +12,55 @@
#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;
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;
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;
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;
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;
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;
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;
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;
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
/************************************************************************/
//////////////////////////////////////////////////////////////////////////
struct InOut
{
enum class Pin
{
#if AVR_DIP40
@ -130,335 +129,189 @@ struct InOut
enum class Type
{
PIN,
DDR,
PIN,
PORT
};
static constexpr volatile uint8_t* getPort( Pin enmPin, Type enmType );
static constexpr uint8_t getPin( Pin enmPin );
constexpr volatile uint8_t* getPort( Pin enmPin, Type enmType )
{
volatile uint8_t *vpui8Port = nullptr;
uint8_t ui8Port = static_cast<uint16_t>( enmPin ) >> 4 & 0x0F;
static inline void setPinDirection( volatile uint8_t *vpui8Port, uint8_t ui8Pin, Dir enmDir );
static inline bool readPin( volatile uint8_t *vpui8Port, uint8_t ui8Pin );
static inline void writePin( volatile uint8_t *vpui8Port, uint8_t ui8Pin, bool bValue );
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;
}
static inline void setPortDirection( volatile uint8_t *vpui8Port, Dir enmDir );
static inline uint8_t readPort( volatile uint8_t *vpui8Port );
static inline void writePort( volatile uint8_t *vpui8Port, uint8_t ui8Value );
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;
}
static inline void setPinDirection( Pin enmPin, Dir enmDir );
static inline void setPinPullup( Pin enmPin, bool bPullup );
static inline bool readPin( Pin enmPin );
static inline void writePin( Pin enmPin, bool bValue );
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;
}
static inline void setPortDirection( Port enmPort, Dir enmDir );
static inline void setPortPullup( Port enmPort, bool bPullup );
static inline uint8_t readPort( Port enmPort );
static inline void writePort( Port enmPort, uint8_t ui8Value );
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) );
};
//////////////////////////////////////////////////////////////////////////
constexpr volatile uint8_t* InOut::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::PIN )
vpui8Port = IO_PINA;
else if( enmType == Type::DDR )
vpui8Port = IO_DDRA;
else if( enmType == Type::PORT )
vpui8Port = IO_PORTA;
break;
}
case 1:
{
if( enmType == Type::PIN )
vpui8Port = IO_PINB;
else if( enmType == Type::DDR )
vpui8Port = IO_DDRB;
else if( enmType == Type::PORT )
vpui8Port = IO_PORTB;
break;
}
case 2:
{
if( enmType == Type::PIN )
vpui8Port = IO_PINC;
else if( enmType == Type::DDR )
vpui8Port = IO_DDRC;
else if( enmType == Type::PORT )
vpui8Port = IO_PORTC;
break;
}
case 3:
{
if( enmType == Type::PIN )
vpui8Port = IO_PIND;
else if( enmType == Type::DDR )
vpui8Port = IO_DDRD;
else if( enmType == Type::PORT )
vpui8Port = IO_PORTD;
break;
}
}
return vpui8Port;
}
template<InOut::Pin enmPin>
inline InOutPin<enmPin>::InOutPin()
{}
//////////////////////////////////////////////////////////////////////////
constexpr uint8_t InOut::getPin( Pin enmPin )
template<InOut::Pin enmPin>
inline void InOutPin<enmPin>::setDirection( InOut::Dir enmDir )
{
return static_cast<uint16_t>( enmPin ) & 0x0F;
}
constexpr volatile uint8_t *vpui8DDR = InOut::getPort( enmPin, InOut::Type::DDR );
constexpr uint8_t ui8Pin = InOut::getPin( enmPin );
//////////////////////////////////////////////////////////////////////////
inline void InOut::setPinDirection( volatile uint8_t *vpui8Port, uint8_t ui8Pin, Dir enmDir )
{
if( enmDir == Dir::OUT )
*vpui8Port |= ( 1 << ui8Pin );
if( enmDir == InOut::Dir::OUT )
*vpui8DDR |= ( 1 << ui8Pin );
else
*vpui8Port &= ~( 1 << ui8Pin );
*vpui8DDR &= ~( 1 << ui8Pin );
}
//////////////////////////////////////////////////////////////////////////
inline bool InOut::readPin( volatile uint8_t *vpui8Port, uint8_t ui8Pin )
template<InOut::Pin enmPin>
inline void InOutPin<enmPin>::setPullup( bool bPullup )
{
if( *vpui8Port >> ui8Pin & 1 )
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;
}
//////////////////////////////////////////////////////////////////////////
inline void InOut::writePin( volatile uint8_t *vpui8Port, uint8_t ui8Pin, bool bValue )
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 );
*vpui8PORT |= ( 1 << ui8Pin );
else
*vpui8Port &= ~( 1 << ui8Pin );
}
//////////////////////////////////////////////////////////////////////////
inline void InOut::setPortDirection( volatile uint8_t *vpui8Port, Dir enmDir )
{
*vpui8Port = ( enmDir == Dir::OUT ) ? 0xFF : 0x00;
}
//////////////////////////////////////////////////////////////////////////
inline uint8_t InOut::readPort( volatile uint8_t *vpui8Port )
{
return *vpui8Port;
}
//////////////////////////////////////////////////////////////////////////
inline void InOut::writePort( volatile uint8_t *vpui8Port, uint8_t ui8Value )
{
*vpui8Port = ui8Value;
}
//////////////////////////////////////////////////////////////////////////
inline void InOut::setPinDirection( Pin enmPin, Dir enmDir )
{
volatile uint8_t *vpui8PortDir = getPort( enmPin, Type::DDR );
uint8_t ui8Pin = getPin( enmPin );
setPinDirection( vpui8PortDir, ui8Pin, enmDir );
}
//////////////////////////////////////////////////////////////////////////
inline void InOut::setPinPullup( Pin enmPin, bool bPullup )
{
volatile uint8_t *vpui8PortOut = getPort( enmPin, Type::PORT );
uint8_t ui8Pin = getPin( enmPin );
writePin( vpui8PortOut, ui8Pin, bPullup );
}
//////////////////////////////////////////////////////////////////////////
inline bool InOut::readPin( Pin enmPin )
{
volatile uint8_t *vpui8Port = getPort( enmPin, Type::PIN );
uint8_t ui8Pin = getPin( enmPin );
return readPin( vpui8Port, ui8Pin );
}
//////////////////////////////////////////////////////////////////////////
inline void InOut::writePin( Pin enmPin, bool bValue )
{
volatile uint8_t *vpui8Port = getPort( enmPin, Type::PORT );
uint8_t ui8Pin = getPin( enmPin );
writePin( vpui8Port, ui8Pin, bValue );
}
//////////////////////////////////////////////////////////////////////////
inline void InOut::setPortDirection( Port enmPort, Dir enmDir )
{
volatile uint8_t *vpui8PortDir = getPort( static_cast<Pin>( enmPort ), Type::DDR );
setPortDirection( vpui8PortDir, enmDir );
}
//////////////////////////////////////////////////////////////////////////
inline void InOut::setPortPullup( Port enmPort, bool bPullup )
{
volatile uint8_t *vpui8PortOut = getPort( static_cast<Pin>( enmPort ), Type::PORT );
writePort( vpui8PortOut, bPullup ? 0xFF : 0x00 );
}
//////////////////////////////////////////////////////////////////////////
inline uint8_t InOut::readPort( Port enmPort )
{
volatile uint8_t *vpui8Port = getPort( static_cast<Pin>( enmPort ), Type::PIN );
return readPort( vpui8Port );
}
//////////////////////////////////////////////////////////////////////////
inline void InOut::writePort( Port enmPort, uint8_t ui8Value )
{
volatile uint8_t *vpui8Port = getPort( static_cast<Pin>( enmPort ), Type::PORT );
writePort( vpui8Port, ui8Value );
}
/************************************************************************/
//////////////////////////////////////////////////////////////////////////
class InOutPin
{
private:
volatile uint8_t *m_pvui8PIN;
volatile uint8_t *m_pvui8DDR;
volatile uint8_t *m_pvui8PORT;
uint8_t m_ui8Pin;
public:
inline InOutPin();
inline InOutPin( InOut::Pin enmPin );
inline void setPin( InOut::Pin enmPin );
inline void setDirection( InOut::Dir enmDir );
inline void setPullup( bool bPullup );
inline bool read();
inline void write( bool bValue );
};
//////////////////////////////////////////////////////////////////////////
inline InOutPin::InOutPin() :
m_pvui8PIN( nullptr ), m_pvui8DDR( nullptr ), m_pvui8PORT( nullptr ), m_ui8Pin( 0xFF )
{}
//////////////////////////////////////////////////////////////////////////
inline InOutPin::InOutPin( InOut::Pin enmPin ) :
m_pvui8PIN( InOut::getPort( enmPin, InOut::Type::PIN ) ),
m_pvui8DDR( InOut::getPort( enmPin, InOut::Type::DDR ) ),
m_pvui8PORT( InOut::getPort( enmPin, InOut::Type::PORT ) ),
m_ui8Pin( InOut::getPin( enmPin ) )
{}
//////////////////////////////////////////////////////////////////////////
inline void InOutPin::setPin( InOut::Pin enmPin )
{
m_pvui8PIN = InOut::getPort( enmPin, InOut::Type::PIN );
m_pvui8DDR = InOut::getPort( enmPin, InOut::Type::DDR );
m_pvui8PORT = InOut::getPort( enmPin, InOut::Type::PORT );
m_ui8Pin = InOut::getPin( enmPin );
}
//////////////////////////////////////////////////////////////////////////
inline void InOutPin::setDirection( InOut::Dir enmDir )
{
InOut::setPinDirection( m_pvui8DDR, m_ui8Pin, enmDir );
}
//////////////////////////////////////////////////////////////////////////
inline void InOutPin::setPullup( bool bPullup )
{
InOut::writePin( m_pvui8PORT, m_ui8Pin, bPullup );
}
//////////////////////////////////////////////////////////////////////////
inline bool InOutPin::read()
{
return InOut::readPin( m_pvui8PIN, m_ui8Pin );
}
//////////////////////////////////////////////////////////////////////////
inline void InOutPin::write( bool bValue )
{
InOut::writePin( m_pvui8PORT, m_ui8Pin, bValue );
*vpui8PORT &= ~( 1 << ui8Pin );
}
/************************************************************************/
//////////////////////////////////////////////////////////////////////////
template<InOut::Port enmPort>
class InOutPort
{
private:
volatile uint8_t *m_pvui8PIN;
volatile uint8_t *m_pvui8DDR;
volatile uint8_t *m_pvui8PORT;
public:
inline InOutPort();
inline InOutPort( InOut::Port enmPort );
inline InOutPort() __attribute__( (always_inline) );
inline void setPort( InOut::Port enmPort );
static inline void setDirection( InOut::Dir enmDir ) __attribute__( (always_inline) );
static inline void setPullup( bool bPullup ) __attribute__( (always_inline) );
inline void setDirection( InOut::Dir enmDir );
inline void setPullup( bool bPullup );
inline uint8_t read();
inline void write( uint8_t ui8Value );
static inline uint8_t read() __attribute__( (always_inline) );
static inline void write( uint8_t ui8Value ) __attribute__( (always_inline) );
};
//////////////////////////////////////////////////////////////////////////
inline InOutPort::InOutPort() :
m_pvui8PIN( nullptr ), m_pvui8DDR( nullptr ), m_pvui8PORT( nullptr )
template<InOut::Port enmPort>
inline InOutPort<enmPort>::InOutPort()
{}
//////////////////////////////////////////////////////////////////////////
inline InOutPort::InOutPort( InOut::Port enmPort ) :
m_pvui8PIN( InOut::getPort( static_cast<InOut::Pin>( enmPort ), InOut::Type::PIN ) ),
m_pvui8DDR( InOut::getPort( static_cast<InOut::Pin>( enmPort ), InOut::Type::DDR ) ),
m_pvui8PORT( InOut::getPort( static_cast<InOut::Pin>( enmPort ), InOut::Type::PORT ) )
{}
//////////////////////////////////////////////////////////////////////////
inline void InOutPort::setPort( InOut::Port enmPort )
template<InOut::Port enmPort>
inline void InOutPort<enmPort>::setDirection( InOut::Dir enmDir )
{
m_pvui8PIN = InOut::getPort( static_cast<InOut::Pin>( enmPort ), InOut::Type::PIN );
m_pvui8DDR = InOut::getPort( static_cast<InOut::Pin>( enmPort ), InOut::Type::DDR );
m_pvui8PORT = InOut::getPort( static_cast<InOut::Pin>( enmPort ), InOut::Type::PORT );
constexpr volatile uint8_t *vpui8DDR = InOut::getPort( static_cast<InOut::Pin>( enmPort ), InOut::Type::DDR );
*vpui8DDR = ( enmDir == InOut::Dir::OUT ) ? 0xFF : 0x00;
}
//////////////////////////////////////////////////////////////////////////
inline void InOutPort::setDirection( InOut::Dir enmDir )
template<InOut::Port enmPort>
inline void InOutPort<enmPort>::setPullup( bool bPullup )
{
InOut::setPortDirection( m_pvui8DDR, enmDir );
write( bPullup ? 0xFF : 0x00 );
}
//////////////////////////////////////////////////////////////////////////
inline void InOutPort::setPullup( bool bPullup )
template<InOut::Port enmPort>
inline uint8_t InOutPort<enmPort>::read()
{
InOut::writePort( m_pvui8PORT, bPullup ? 0xFF : 0x00 );
constexpr volatile uint8_t *vpui8PIN = InOut::getPort( static_cast<InOut::Pin>( enmPort ), InOut::Type::PIN );
return *vpui8PIN;
}
//////////////////////////////////////////////////////////////////////////
inline uint8_t InOutPort::read()
template<InOut::Port enmPort>
inline void InOutPort<enmPort>::write( uint8_t ui8Value )
{
return InOut::readPort( m_pvui8PIN );
}
//////////////////////////////////////////////////////////////////////////
inline void InOutPort::write( uint8_t ui8Value )
{
InOut::writePort( m_pvui8PORT, ui8Value );
constexpr volatile uint8_t *vpui8PORT = InOut::getPort( static_cast<InOut::Pin>( enmPort ), InOut::Type::PORT );
*vpui8PORT = ui8Value;
}
#endif