TFT_FastPin.h

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//
// This template library is from FastLED http://fastled.io
//

/*

The MIT License (MIT)

Copyright (c) 2013 FastLED

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

*/ 

#ifndef __INC_FASTPIN_H
#define __INC_FASTPIN_H

#include<avr/io.h>

// Arduino.h needed for convinience functions digitalPinToPort/BitMask/portOutputRegister and the pinMode methods.
#include<Arduino.h>

#define NO_PIN 255 

// Class to ensure that a minimum amount of time has kicked since the last time run - and delay if not enough time has passed yet
// this should make sure that chipsets that have 
template<int FASTPIN_WAIT> class CMinWait {
    long mLastMicros;
public:
    CMinWait() { mLastMicros = 0; }

    void wait() { 
        long diff = micros() - mLastMicros;
        while(diff < FASTPIN_WAIT) { 
            diff = micros() - mLastMicros;
        }
    }

    void mark() { mLastMicros = micros(); }
};

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Pin access class - needs to tune for various platforms (naive fallback solution?)
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#define _CYCLES(_PIN) (((_PIN >= 62 ) || (_PIN>=42 && _PIN<=49) || (_PIN>=14 && _PIN <=17) || (_PIN>=6 && _PIN <=9)) ? 2 : 1)
#else
#define _CYCLES(_PIN) ((_PIN >= 24) ? 2 : 1)
#endif

class Selectable {
public:
    virtual void select() = 0;
    virtual void release() = 0;
    virtual bool isSelected() = 0;
};

class Pin : public Selectable { 
    uint8_t mPinMask;
    uint8_t mPin;
    volatile uint8_t *mPort;

    void _init() { 
        mPinMask = digitalPinToBitMask(mPin);
        mPort = portOutputRegister(digitalPinToPort(mPin));
    }
public:
    Pin(int pin) : mPin(pin) { _init(); }

    typedef volatile uint8_t * port_ptr_t;
    typedef uint8_t port_t;

    inline void setOutput() { pinMode(mPin, OUTPUT); }
    inline void setInput() { pinMode(mPin, INPUT); }

    inline void hi() __attribute__ ((always_inline)) { *mPort |= mPinMask; } 
    inline void lo() __attribute__ ((always_inline)) { *mPort &= ~mPinMask; }

    inline void strobe() __attribute__ ((always_inline)) { hi(); lo(); }

    inline void hi(register port_ptr_t port) __attribute__ ((always_inline)) { *port |= mPinMask; } 
    inline void lo(register port_ptr_t port) __attribute__ ((always_inline)) { *port &= ~mPinMask; } 
    inline void set(register port_t val) __attribute__ ((always_inline)) { *mPort = val; }

    inline void fastset(register port_ptr_t port, register port_t val) __attribute__ ((always_inline)) { *port  = val; }

    port_t hival() __attribute__ ((always_inline)) { return *mPort | mPinMask;  }
    port_t loval() __attribute__ ((always_inline)) { return *mPort & ~mPinMask; }
    port_ptr_t  port() __attribute__ ((always_inline)) { return mPort; }
    port_t mask() __attribute__ ((always_inline)) { return mPinMask; }

    virtual void select() { hi(); }
    virtual void release() { lo(); }
    virtual bool isSelected() { return (*mPort & mPinMask) == mPinMask; }
};

class OutputPin : public Pin {
public:
    OutputPin(int pin) : Pin(pin) { setOutput(); }
};

class InputPin : public Pin {
public:
    InputPin(int pin) : Pin(pin) { setInput(); }
};

/// The simplest level of Pin class.  This relies on runtime functions durinig initialization to get the port/pin mask for the pin.  Most
/// of the accesses involve references to these static globals that get set up.  This won't be the fastest set of pin operations, but it
/// will provide pin level access on pretty much all arduino environments.  In addition, it includes some methods to help optimize access in
/// various ways.  Namely, the versions of hi, lo, and fastset that take the port register as a passed in register variable (saving a global
/// dereference), since these functions are aggressively inlined, that can help collapse out a lot of extraneous memory loads/dereferences.
/// 
/// In addition, if, while writing a bunch of data to a pin, you know no other pins will be getting written to, you can get/cache a value of
/// the pin's port register and use that to do a full set to the register.  This results in one being able to simply do a store to the register,
/// vs. the load, and/or, and store that would be done normally.
///
/// There are platform specific instantiations of this class that provide direct i/o register access to pins for much higher speed pin twiddling.
///
/// Note that these classes are all static functions.  So the proper usage is Pin<13>::hi(); or such.  Instantiating objects is not recommended, 
/// as passing Pin objects around will likely -not- have the effect you're expecting.
template<uint8_t PIN> class FastPin { 
    static uint8_t sPinMask;
    static volatile uint8_t *sPort;
    static void _init() { 
        sPinMask = digitalPinToBitMask(PIN);
        sPort = portOutputRegister(digitalPinToPort(PIN));
    }
public:
    typedef volatile uint8_t * port_ptr_t;
    typedef uint8_t port_t;

    inline static void setOutput() { _init(); pinMode(PIN, OUTPUT); }
    inline static void setInput() { _init(); pinMode(PIN, INPUT); }

    inline static void hi() __attribute__ ((always_inline)) { *sPort |= sPinMask; } 
    inline static void lo() __attribute__ ((always_inline)) { *sPort &= ~sPinMask; }

    inline static void strobe() __attribute__ ((always_inline)) { hi(); lo(); }

    inline static void hi(register port_ptr_t port) __attribute__ ((always_inline)) { *port |= sPinMask; } 
    inline static void lo(register port_ptr_t port) __attribute__ ((always_inline)) { *port &= ~sPinMask; } 
    inline static void set(register port_t val) __attribute__ ((always_inline)) { *sPort = val; }

    inline static void fastset(register port_ptr_t port, register port_t val) __attribute__ ((always_inline)) { *port  = val; }

    static port_t hival() __attribute__ ((always_inline)) { return *sPort | sPinMask;  }
    static port_t loval() __attribute__ ((always_inline)) { return *sPort & ~sPinMask; }
    static port_ptr_t  port() __attribute__ ((always_inline)) { return sPort; }
    static port_t mask() __attribute__ ((always_inline)) { return sPinMask; }
};

template<uint8_t PIN> uint8_t FastPin<PIN>::sPinMask;
template<uint8_t PIN> volatile uint8_t *FastPin<PIN>::sPort;

/// Class definition for a Pin where we know the port registers at compile time for said pin.  This allows us to make
/// a lot of optimizations, as the inlined hi/lo methods will devolve to a single io register write/bitset.  
template<uint8_t PIN, uint8_t _MASK, typename _PORT, typename _DDR, typename _PIN> class _AVRPIN { 
public:
    typedef volatile uint8_t * port_ptr_t;
    typedef uint8_t port_t;
     
    inline static void setOutput() { _DDR::r() |= _MASK; }
    inline static void setInput() { _DDR::r() &= ~_MASK; }

    inline static void hi() __attribute__ ((always_inline)) { _PORT::r() |= _MASK; }
    inline static void lo() __attribute__ ((always_inline)) { _PORT::r() &= ~_MASK; }
    inline static void set(register uint8_t val) __attribute__ ((always_inline)) { _PORT::r() = val; }

    inline static void strobe() __attribute__ ((always_inline)) { hi(); lo(); }
    
    inline static void hi(register port_ptr_t port) __attribute__ ((always_inline)) { hi(); }
    inline static void lo(register port_ptr_t port) __attribute__ ((always_inline)) { lo(); }
    inline static void fastset(register port_ptr_t port, register uint8_t val) __attribute__ ((always_inline)) { set(val); }

    inline static port_t hival() __attribute__ ((always_inline)) { return _PORT::r() | _MASK; }
    inline static port_t loval() __attribute__ ((always_inline)) { return _PORT::r() & ~_MASK; }
    inline static port_ptr_t port() __attribute__ ((always_inline)) { return &_PORT::r(); }
    inline static port_t mask() __attribute__ ((always_inline)) { return _MASK; }
};

/// Template definition for teensy 3.0 style ARM pins, providing direct access to the various GPIO registers.  Note that this
/// uses the full port GPIO registers.  In theory, in some way, bit-band register access -should- be faster, however I have found
/// that something about the way gcc does register allocation results in the bit-band code being slower.  It will need more fine tuning.
template<uint8_t PIN, uint32_t _MASK, typename _PDOR, typename _PSOR, typename _PCOR, typename _PTOR, typename _PDIR, typename _PDDR> class _ARMPIN { 
public:
    typedef volatile uint32_t * port_ptr_t;
    typedef uint32_t port_t;

    inline static void setOutput() { pinMode(PIN, OUTPUT); } // TODO: perform MUX config { _PDDR::r() |= _MASK; }
    inline static void setInput() { pinMode(PIN, INPUT); } // TODO: preform MUX config { _PDDR::r() &= ~_MASK; }

    inline static void hi() __attribute__ ((always_inline)) { _PSOR::r() = _MASK; }
    inline static void lo() __attribute__ ((always_inline)) { _PCOR::r() = _MASK; }
    inline static void set(register port_t val) __attribute__ ((always_inline)) { _PDOR::r() = val; }

    inline static void strobe() __attribute__ ((always_inline)) { toggle(); toggle(); }
    
    inline static void toggle() __attribute__ ((always_inline)) { _PTOR::r() = _MASK; }

    inline static void hi(register port_ptr_t port) __attribute__ ((always_inline)) { hi(); }
    inline static void lo(register port_ptr_t port) __attribute__ ((always_inline)) { lo(); }
    inline static void fastset(register port_ptr_t port, register port_t val) __attribute__ ((always_inline)) { *port = val; }

    inline static port_t hival() __attribute__ ((always_inline)) { return _PDOR::r() | _MASK; }
    inline static port_t loval() __attribute__ ((always_inline)) { return _PDOR::r() & ~_MASK; }
    inline static port_ptr_t port() __attribute__ ((always_inline)) { return &_PDOR::r(); }
    inline static port_t mask() __attribute__ ((always_inline)) { return _MASK; }
};

/// Template definition for teensy 3.0 style ARM pins using bit banding, providing direct access to the various GPIO registers.  GCC 
/// does a poor job of optimizing around these accesses so they are not being used just yet.
template<uint8_t PIN, int _BIT, typename _PDOR, typename _PSOR, typename _PCOR, typename _PTOR, typename _PDIR, typename _PDDR> class _ARMPIN_BITBAND { 
public:
    typedef volatile uint32_t * port_ptr_t;
    typedef uint32_t port_t;

    inline static void setOutput() { pinMode(PIN, OUTPUT); } // TODO: perform MUX config { _PDDR::r() |= _MASK; }
    inline static void setInput() { pinMode(PIN, INPUT); } // TODO: preform MUX config { _PDDR::r() &= ~_MASK; }

    inline static void hi() __attribute__ ((always_inline)) { *_PDOR::template rx<_BIT>() = 1; }
    inline static void lo() __attribute__ ((always_inline)) { *_PDOR::template rx<_BIT>() = 0; }
    inline static void set(register port_t val) __attribute__ ((always_inline)) { *_PDOR::template rx<_BIT>() = val; }

    inline static void strobe() __attribute__ ((always_inline)) { toggle(); toggle(); }
    
    inline static void toggle() __attribute__ ((always_inline)) { *_PTOR::template rx<_BIT>() = 1; }

    inline static void hi(register port_ptr_t port) __attribute__ ((always_inline)) { *port = 1;  }
    inline static void lo(register port_ptr_t port) __attribute__ ((always_inline)) { *port = 0; }
    inline static void fastset(register port_ptr_t port, register port_t val) __attribute__ ((always_inline)) { *port = val; }

    inline static port_t hival() __attribute__ ((always_inline)) { return 1; }
    inline static port_t loval() __attribute__ ((always_inline)) { return 0; }
    inline static port_ptr_t port() __attribute__ ((always_inline)) { return _PDOR::template rx<_BIT>(); }
    inline static port_t mask() __attribute__ ((always_inline)) { return 1; }
};

/// AVR definitions for pins.  Getting around  the fact that I can't pass GPIO register addresses in as template arguments by instead creating
/// a custom type for each GPIO register with a single, static, aggressively inlined function that returns that specific GPIO register.  A similar
/// trick is used a bit further below for the ARM GPIO registers (of which there are far more than on AVR!)
typedef volatile uint8_t & reg8_t;
#define _R(T) struct __gen_struct_ ## T
#define _RD8(T) struct __gen_struct_ ## T { static inline reg8_t r() { return T; }};
#define _IO(L) _RD8(DDR ## L); _RD8(PORT ## L); _RD8(PIN ## L);
#define _DEFPIN_AVR(PIN, MASK, L) template<> class FastPin<PIN> : public _AVRPIN<PIN, MASK, _R(PORT ## L), _R(DDR ## L), _R(PIN ## L)> {};

// ARM definitions
#define GPIO_BITBAND_ADDR(reg, bit) (((uint32_t)&(reg) - 0x40000000) * 32 + (bit) * 4 + 0x42000000)
#define GPIO_BITBAND_PTR(reg, bit) ((uint32_t *)GPIO_BITBAND_ADDR((reg), (bit)))

typedef volatile uint32_t & reg32_t;
typedef volatile uint32_t * ptr_reg32_t;

#define _RD32(T) struct __gen_struct_ ## T { static __attribute__((always_inline)) inline reg32_t r() { return T; } \
    template<int BIT> static __attribute__((always_inline)) inline ptr_reg32_t rx() { return GPIO_BITBAND_PTR(T, BIT); } };
#define _IO32(L) _RD32(GPIO ## L ## _PDOR); _RD32(GPIO ## L ## _PSOR); _RD32(GPIO ## L ## _PCOR); _RD32(GPIO ## L ## _PTOR); _RD32(GPIO ## L ## _PDIR); _RD32(GPIO ## L ## _PDDR);

#define _DEFPIN_ARM(PIN, BIT, L) template<> class FastPin<PIN> : public _ARMPIN<PIN, 1 << BIT, _R(GPIO ## L ## _PDOR), _R(GPIO ## L ## _PSOR), _R(GPIO ## L ## _PCOR), \
                                                                            _R(GPIO ## L ## _PTOR), _R(GPIO ## L ## _PDIR), _R(GPIO ## L ## _PDDR)> {}; 

// Don't use bit band'd pins for now, the compiler generates far less efficient code around them
// #define _DEFPIN_ARM(PIN, BIT, L) template<> class Pin<PIN> : public _ARMPIN_BITBAND<PIN, BIT, _R(GPIO ## L ## _PDOR), _R(GPIO ## L ## _PSOR), _R(GPIO ## L ## _PCOR),
//                                                                          _R(GPIO ## L ## _PTOR), _R(GPIO ## L ## _PDIR), _R(GPIO ## L ## _PDDR)> {}; 


///////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Pin definitions for AVR and ARM.  If there are pin definitions supplied below for the platform being 
// built on, then much higher speed access will be possible, namely with direct GPIO register accesses.
//
///////////////////////////////////////////////////////////////////////////////////////////////////////////
#if defined(FORCE_SOFTWARE_PINS)
#warning "Softwrae pin support forced pin access will be slightly slower.  See fastpin.h for info."
#define NO_HARDWARE_PIN_SUPPORT

#elif defined(__AVR_ATtiny85__) || defined(__AVR_ATtiny45__)
_IO(B);

_DEFPIN_AVR(0, 0x01, B); _DEFPIN_AVR(1, 0x02, B); _DEFPIN_AVR(2, 0x04, B); _DEFPIN_AVR(3, 0x08, B);
_DEFPIN_AVR(4, 0x10, B); _DEFPIN_AVR(5, 0x20, B);

#elif(__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny25__)
_IO(A); _IO(B);

_DEFPIN_AVR(0, 0x01, A); _DEFPIN_AVR(1, 0x02, A); _DEFPIN_AVR(2, 0x04, A); _DEFPIN_AVR(3, 0x08, A);
_DEFPIN_AVR(4, 0x10, A); _DEFPIN_AVR(5, 0x20, A); _DEFPIN_AVR(6, 0x40, A); _DEFPIN_AVR(7, 0x80, A);
_DEFPIN_AVR(8, 0x04, B); _DEFPIN_AVR(9, 0x02, B); _DEFPIN_AVR(10, 0x01, B);

#elif defined(__AVR_ATmega328P__) || defined(__AVR_ATmega168__)
// Accelerated port definitions for arduino avrs
_IO(D); _IO(B); _IO(C);
_DEFPIN_AVR( 0, 0x01, D); _DEFPIN_AVR( 1, 0x02, D); _DEFPIN_AVR( 2, 0x04, D); _DEFPIN_AVR( 3, 0x08, D);
_DEFPIN_AVR( 4, 0x10, D); _DEFPIN_AVR( 5, 0x20, D); _DEFPIN_AVR( 6, 0x40, D); _DEFPIN_AVR( 7, 0x80, D);
_DEFPIN_AVR( 8, 0x01, B); _DEFPIN_AVR( 9, 0x02, B); _DEFPIN_AVR(10, 0x04, B); _DEFPIN_AVR(11, 0x08, B);
_DEFPIN_AVR(12, 0x10, B); _DEFPIN_AVR(13, 0x20, B); _DEFPIN_AVR(14, 0x01, C); _DEFPIN_AVR(15, 0x02, C);
_DEFPIN_AVR(16, 0x04, C); _DEFPIN_AVR(17, 0x08, C); _DEFPIN_AVR(18, 0x10, C); _DEFPIN_AVR(19, 0x20, C);

#define SPI_DATA 11
#define SPI_CLOCK 13
#define SPI_SELECT 10
#define AVR_HARDWARE_SPI

#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
// megas

_IO(A); _IO(B); _IO(C); _IO(D); _IO(E); _IO(F); _IO(G); _IO(H); _IO(J); _IO(K); _IO(L);

_DEFPIN_AVR(0, 1, E); _DEFPIN_AVR(1, 2, E); _DEFPIN_AVR(2, 16, E); _DEFPIN_AVR(3, 32, E); 
_DEFPIN_AVR(4, 32, G); _DEFPIN_AVR(5, 8, E); _DEFPIN_AVR(6, 8, H); _DEFPIN_AVR(7, 16, H); 
_DEFPIN_AVR(8, 32, H); _DEFPIN_AVR(9, 64, H); _DEFPIN_AVR(10, 16, B); _DEFPIN_AVR(11, 32, B); 
_DEFPIN_AVR(12, 64, B); _DEFPIN_AVR(13, 128, B); _DEFPIN_AVR(14, 2, J); _DEFPIN_AVR(15, 1, J); 
_DEFPIN_AVR(16, 2, H); _DEFPIN_AVR(17, 1, H); _DEFPIN_AVR(18, 8, D); _DEFPIN_AVR(19, 4, D); 
_DEFPIN_AVR(20, 2, D); _DEFPIN_AVR(21, 1, D); _DEFPIN_AVR(22, 1, A); _DEFPIN_AVR(23, 2, A); 
_DEFPIN_AVR(24, 4, A); _DEFPIN_AVR(25, 8, A); _DEFPIN_AVR(26, 16, A); _DEFPIN_AVR(27, 32, A); 
_DEFPIN_AVR(28, 64, A); _DEFPIN_AVR(29, 128, A); _DEFPIN_AVR(30, 128, C); _DEFPIN_AVR(31, 64, C); 
_DEFPIN_AVR(32, 32, C); _DEFPIN_AVR(33, 16, C); _DEFPIN_AVR(34, 8, C); _DEFPIN_AVR(35, 4, C); 
_DEFPIN_AVR(36, 2, C); _DEFPIN_AVR(37, 1, C); _DEFPIN_AVR(38, 128, D); _DEFPIN_AVR(39, 4, G); 
_DEFPIN_AVR(40, 2, G); _DEFPIN_AVR(41, 1, G); _DEFPIN_AVR(42, 128, L); _DEFPIN_AVR(43, 64, L); 
_DEFPIN_AVR(44, 32, L); _DEFPIN_AVR(45, 16, L); _DEFPIN_AVR(46, 8, L); _DEFPIN_AVR(47, 4, L); 
_DEFPIN_AVR(48, 2, L); _DEFPIN_AVR(49, 1, L); _DEFPIN_AVR(50, 8, B); _DEFPIN_AVR(51, 4, B); 
_DEFPIN_AVR(52, 2, B); _DEFPIN_AVR(53, 1, B); _DEFPIN_AVR(54, 1, F); _DEFPIN_AVR(55, 2, F); 
_DEFPIN_AVR(56, 4, F); _DEFPIN_AVR(57, 8, F); _DEFPIN_AVR(58, 16, F); _DEFPIN_AVR(59, 32, F); 
_DEFPIN_AVR(60, 64, F); _DEFPIN_AVR(61, 128, F); _DEFPIN_AVR(62, 1, K); _DEFPIN_AVR(63, 2, K); 
_DEFPIN_AVR(64, 4, K); _DEFPIN_AVR(65, 8, K); _DEFPIN_AVR(66, 16, K); _DEFPIN_AVR(67, 32, K); 
_DEFPIN_AVR(68, 64, K); _DEFPIN_AVR(69, 128, K); 

#define SPI_DATA 51
#define SPI_CLOCK 52
#define SPI_SELECT 53
#define AVR_HARDWARE_SPI

#elif defined(__AVR_ATmega644__) || defined(__AVR_ATmega644P__) || defined(__AVR_ATmega1284__) || defined(__AVR_ATmega1284P__)
// Xark: Add ATMega644,644P,1284 and 1284P (using pinout from http://maniacbug.wordpress.com/2011/11/27/arduino-on-atmega1284p-4/)

_IO(A); _IO(B); _IO(C); _IO(D);

_DEFPIN_AVR( 0, (1<<0), B); _DEFPIN_AVR( 1, (1<<1), B); _DEFPIN_AVR( 2, (1<<2), B); _DEFPIN_AVR( 3, (1<<3), B); 
_DEFPIN_AVR( 4, (1<<4), B); _DEFPIN_AVR( 5, (1<<5), B); _DEFPIN_AVR( 6, (1<<6), B); _DEFPIN_AVR( 7, (1<<7), B); 

_DEFPIN_AVR( 8, (1<<0), D); _DEFPIN_AVR( 9, (1<<1), D); _DEFPIN_AVR(10, (1<<2), D); _DEFPIN_AVR(11, (1<<3), D); 
_DEFPIN_AVR(12, (1<<4), D); _DEFPIN_AVR(13, (1<<5), D); _DEFPIN_AVR(14, (1<<6), D); _DEFPIN_AVR(15, (1<<7), D); 

_DEFPIN_AVR(16, (1<<0), C); _DEFPIN_AVR(17, (1<<1), C); _DEFPIN_AVR(18, (1<<2), C); _DEFPIN_AVR(19, (1<<3), C); 
_DEFPIN_AVR(20, (1<<4), C); _DEFPIN_AVR(21, (1<<5), C); _DEFPIN_AVR(22, (1<<6), C); _DEFPIN_AVR(23, (1<<7), C); 

_DEFPIN_AVR(24, (1<<0), A); _DEFPIN_AVR(25, (1<<1), A); _DEFPIN_AVR(26, (1<<2), A); _DEFPIN_AVR(27, (1<<3), A); 
_DEFPIN_AVR(28, (1<<4), A); _DEFPIN_AVR(29, (1<<5), A); _DEFPIN_AVR(30, (1<<6), A); _DEFPIN_AVR(31, (1<<7), A); 

#define SPI_DATA 5
#define SPI_CLOCK 7
#define SPI_SELECT 4
#define AVR_HARDWARE_SPI

// Leonardo, teensy, blinkm
#elif defined(__AVR_ATmega32U4__) && defined(CORE_TEENSY)
// Leonardo, teensy, blinkm
#elif defined(__AVR_ATmega32U4__) && defined(CORE_TEENSY)

// teensy defs
_IO(B); _IO(C); _IO(D); _IO(E); _IO(F); 

_DEFPIN_AVR(0, 1, B); _DEFPIN_AVR(1, 2, B); _DEFPIN_AVR(2, 4, B); _DEFPIN_AVR(3, 8, B); 
_DEFPIN_AVR(4, 128, B); _DEFPIN_AVR(5, 1, D); _DEFPIN_AVR(6, 2, D); _DEFPIN_AVR(7, 4, D); 
_DEFPIN_AVR(8, 8, D); _DEFPIN_AVR(9, 64, C); _DEFPIN_AVR(10, 128, C); _DEFPIN_AVR(11, 64, D); 
_DEFPIN_AVR(12, 128, D); _DEFPIN_AVR(13, 16, B); _DEFPIN_AVR(14, 32, B); _DEFPIN_AVR(15, 64, B); 
_DEFPIN_AVR(16, 128, F); _DEFPIN_AVR(17, 64, F); _DEFPIN_AVR(18, 32, F); _DEFPIN_AVR(19, 16, F); 
_DEFPIN_AVR(20, 2, F); _DEFPIN_AVR(21, 1, F); _DEFPIN_AVR(22, 16, D); _DEFPIN_AVR(23, 32, D); 

#define SPI_DATA 2
#define SPI_CLOCK 1
#define SPI_SELECT 3
#define AVR_HARDWARE_SPI

#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
// teensy++ 2 defs

_IO(A); _IO(B); _IO(C); _IO(D); _IO(E); _IO(F); 

_DEFPIN_AVR(0, 1, D); _DEFPIN_AVR(1, 2, D); _DEFPIN_AVR(2, 4, D); _DEFPIN_AVR(3, 8, D); 
_DEFPIN_AVR(4, 16, D); _DEFPIN_AVR(5, 32, D); _DEFPIN_AVR(6, 64, D); _DEFPIN_AVR(7, 128, D); 
_DEFPIN_AVR(8, 1, E); _DEFPIN_AVR(9, 2, E); _DEFPIN_AVR(10, 1, C); _DEFPIN_AVR(11, 2, C); 
_DEFPIN_AVR(12, 4, C); _DEFPIN_AVR(13, 8, C); _DEFPIN_AVR(14, 16, C); _DEFPIN_AVR(15, 32, C); 
_DEFPIN_AVR(16, 64, C); _DEFPIN_AVR(17, 128, C); _DEFPIN_AVR(18, 64, E); _DEFPIN_AVR(19, 128, E); 
_DEFPIN_AVR(20, 1, B); _DEFPIN_AVR(21, 2, B); _DEFPIN_AVR(22, 4, B); _DEFPIN_AVR(23, 8, B); 
_DEFPIN_AVR(24, 16, B); _DEFPIN_AVR(25, 32, B); _DEFPIN_AVR(26, 64, B); _DEFPIN_AVR(27, 128, B); 
_DEFPIN_AVR(28, 1, A); _DEFPIN_AVR(29, 2, A); _DEFPIN_AVR(30, 4, A); _DEFPIN_AVR(31, 8, A); 
_DEFPIN_AVR(32, 16, A); _DEFPIN_AVR(33, 32, A); _DEFPIN_AVR(34, 64, A); _DEFPIN_AVR(35, 128, A); 
_DEFPIN_AVR(36, 16, E); _DEFPIN_AVR(37, 32, E); _DEFPIN_AVR(38, 1, F); _DEFPIN_AVR(39, 2, F); 
_DEFPIN_AVR(40, 4, F); _DEFPIN_AVR(41, 8, F); _DEFPIN_AVR(42, 16, F); _DEFPIN_AVR(43, 32, F); 
_DEFPIN_AVR(44, 64, F); _DEFPIN_AVR(45, 128, F); 

#define SPI_DATA 22
#define SPI_CLOCK 21
#define SPI_SELECT 20
#define AVR_HARDWARE_SPI

#elif defined(__AVR_ATmega32U4__)

// leonard defs
_IO(B); _IO(C); _IO(D); _IO(E); _IO(F); 

_DEFPIN_AVR(0, 4, D); _DEFPIN_AVR(1, 8, D); _DEFPIN_AVR(2, 2, D); _DEFPIN_AVR(3, 1, D); 
_DEFPIN_AVR(4, 16, D); _DEFPIN_AVR(5, 64, C); _DEFPIN_AVR(6, 128, D); _DEFPIN_AVR(7, 64, E); 
_DEFPIN_AVR(8, 16, B); _DEFPIN_AVR(9, 32, B); _DEFPIN_AVR(10, 64, B); _DEFPIN_AVR(11, 128, B); 
_DEFPIN_AVR(12, 64, D); _DEFPIN_AVR(13, 128, C); _DEFPIN_AVR(14, 8, B); _DEFPIN_AVR(15, 2, B); 
_DEFPIN_AVR(16, 4, B); _DEFPIN_AVR(17, 1, B); _DEFPIN_AVR(18, 128, F); _DEFPIN_AVR(19, 64, F); 
_DEFPIN_AVR(20, 32, F); _DEFPIN_AVR(21, 16, F); _DEFPIN_AVR(22, 2, F); _DEFPIN_AVR(23, 0, F); 

#define SPI_DATA 16
#define SPI_CLOCK 15
#define AVR_HARDWARE_SPI

#elif defined(__MK20DX128__) && defined(CORE_TEENSY)

_IO32(A); _IO32(B); _IO32(C); _IO32(D); _IO32(E);

_DEFPIN_ARM(0, 16, B); _DEFPIN_ARM(1, 17, B); _DEFPIN_ARM(2, 0, D); _DEFPIN_ARM(3, 12, A);
_DEFPIN_ARM(4, 13, A); _DEFPIN_ARM(5, 7, D); _DEFPIN_ARM(6, 4, D); _DEFPIN_ARM(7, 2, D);
_DEFPIN_ARM(8, 3, D); _DEFPIN_ARM(9, 3, C); _DEFPIN_ARM(10, 4, C); _DEFPIN_ARM(11, 6, C);
_DEFPIN_ARM(12, 7, C); _DEFPIN_ARM(13, 5, C); _DEFPIN_ARM(14, 1, D); _DEFPIN_ARM(15, 0, C);
_DEFPIN_ARM(16, 0, B); _DEFPIN_ARM(17, 1, B); _DEFPIN_ARM(18, 3, B); _DEFPIN_ARM(19, 2, B);
_DEFPIN_ARM(20, 5, D); _DEFPIN_ARM(21, 6, D); _DEFPIN_ARM(22, 1, C); _DEFPIN_ARM(23, 2, C);
_DEFPIN_ARM(24, 5, A); _DEFPIN_ARM(25, 19, B); _DEFPIN_ARM(26, 1, E); _DEFPIN_ARM(27, 9, C);
_DEFPIN_ARM(28, 8, C); _DEFPIN_ARM(29, 10, C); _DEFPIN_ARM(30, 11, C); _DEFPIN_ARM(31, 0, E);
_DEFPIN_ARM(32, 18, B); _DEFPIN_ARM(33, 4, A);

#define SPI_DATA 11
#define SPI_CLOCK 13
#define ARM_HARDWARE_SPI

#elif defined(__SAM3X8E__)

DUE_IO32(A);
DUE_IO32(B);
DUE_IO32(C);
DUE_IO32(D);

_DEFPIN_DUE(0, 8, A); _DEFPIN_DUE(1, 9, A); _DEFPIN_DUE(2, 25, B); _DEFPIN_DUE(3, 28, C);
_DEFPIN_DUE(4, 26, C); _DEFPIN_DUE(5, 25, C); _DEFPIN_DUE(6, 24, C); _DEFPIN_DUE(7, 23, C);
_DEFPIN_DUE(8, 22, C); _DEFPIN_DUE(9, 21, C); _DEFPIN_DUE(10, 29, C); _DEFPIN_DUE(11, 7, D);
_DEFPIN_DUE(12, 8, D); _DEFPIN_DUE(13, 27, B); _DEFPIN_DUE(14, 4, D); _DEFPIN_DUE(15, 5, D);
_DEFPIN_DUE(16, 13, A); _DEFPIN_DUE(17, 12, A); _DEFPIN_DUE(18, 11, A); _DEFPIN_DUE(19, 10, A);
_DEFPIN_DUE(20, 12, B); _DEFPIN_DUE(21, 13, B); _DEFPIN_DUE(22, 26, B); _DEFPIN_DUE(23, 14, A);
_DEFPIN_DUE(24, 15, A); _DEFPIN_DUE(25, 0, D); _DEFPIN_DUE(26, 1, D); _DEFPIN_DUE(27, 2, D);
_DEFPIN_DUE(28, 3, D); _DEFPIN_DUE(29, 6, D); _DEFPIN_DUE(30, 9, D); _DEFPIN_DUE(31, 7, A);
_DEFPIN_DUE(32, 10, D); _DEFPIN_DUE(33, 1, C); _DEFPIN_DUE(34, 2, C); _DEFPIN_DUE(35, 3, C);
_DEFPIN_DUE(36, 4, C); _DEFPIN_DUE(37, 5, C); _DEFPIN_DUE(38, 6, C); _DEFPIN_DUE(39, 7, C);
_DEFPIN_DUE(40, 8, C); _DEFPIN_DUE(41, 9, C); _DEFPIN_DUE(42, 19, A); _DEFPIN_DUE(43, 20, A);
_DEFPIN_DUE(44, 19, C); _DEFPIN_DUE(45, 18, C); _DEFPIN_DUE(46, 17, C); _DEFPIN_DUE(47, 16, C);
_DEFPIN_DUE(48, 15, C); _DEFPIN_DUE(49, 14, C); _DEFPIN_DUE(50, 13, C); _DEFPIN_DUE(51, 12, C);
_DEFPIN_DUE(52, 21, B); _DEFPIN_DUE(53, 14, B); _DEFPIN_DUE(54, 16, A); _DEFPIN_DUE(55, 24, A);
_DEFPIN_DUE(56, 23, A); _DEFPIN_DUE(57, 22, A); _DEFPIN_DUE(58, 6, A); _DEFPIN_DUE(59, 4, A);
_DEFPIN_DUE(60, 3, A); _DEFPIN_DUE(61, 2, A); _DEFPIN_DUE(62, 17, B); _DEFPIN_DUE(63, 18, B);
_DEFPIN_DUE(64, 19, B); _DEFPIN_DUE(65, 20, B); _DEFPIN_DUE(66, 15, B); _DEFPIN_DUE(67, 16, B);
_DEFPIN_DUE(68, 1, A); _DEFPIN_DUE(69, 0, A); _DEFPIN_DUE(70, 17, A); _DEFPIN_DUE(71, 18, A);
_DEFPIN_DUE(72, 30, C); _DEFPIN_DUE(73, 21, A); _DEFPIN_DUE(74, 25, A); _DEFPIN_DUE(75, 26, A);
_DEFPIN_DUE(76, 27, A); _DEFPIN_DUE(77, 28, A); _DEFPIN_DUE(78, 23, B);

#else

#warning "No pin/port mappings found, pin access will be slightly slower.  See fastpin.h for info."
#define NO_HARDWARE_PIN_SUPPORT

#endif

#endif