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avr_emulation.h
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avr_emulation.h
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/* Teensyduino Core Library
* http://www.pjrc.com/teensy/
* Copyright (c) 2013 PJRC.COM, LLC.
*
* 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:
*
* 1. The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* 2. If the Software is incorporated into a build system that allows
* selection among a list of target devices, then similar target
* devices manufactured by PJRC.COM must be included in the list of
* target devices and selectable in the same manner.
*
* 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 _avr_emulation_h_
#define _avr_emulation_h_
#include "kinetis.h"
#include "core_pins.h"
#include "pins_arduino.h"
#ifdef __cplusplus
#define GPIO_BITBAND_ADDR(reg, bit) (((uint32_t)&(reg) - 0x40000000) * 32 + (bit) * 4 + 0x42000000)
#define CONFIG_PULLUP (PORT_PCR_MUX(1) | PORT_PCR_PE | PORT_PCR_PS)
#define CONFIG_NOPULLUP (PORT_PCR_MUX(1))
#if defined(KINETISK)
// bitband addressing for atomic access to data direction register
#define GPIO_SETBIT_ATOMIC(reg, bit) (*(uint32_t *)GPIO_BITBAND_ADDR((reg), (bit)) = 1)
#define GPIO_CLRBIT_ATOMIC(reg, bit) (*(uint32_t *)GPIO_BITBAND_ADDR((reg), (bit)) = 0)
#elif defined(KINETISL)
// bit manipulation engine for atomic access to data direction register
#define GPIO_SETBIT_ATOMIC(reg, bit) (*(uint32_t *)(((uint32_t)&(reg) - 0xF8000000) | 0x480FF000) = 1 << (bit))
#define GPIO_CLRBIT_ATOMIC(reg, bit) (*(uint32_t *)(((uint32_t)&(reg) - 0xF8000000) | 0x440FF000) = ~(1 << (bit)))
#endif
class PORTDemulation
{
public:
inline PORTDemulation & operator = (int val) __attribute__((always_inline)) {
digitalWriteFast(0, (val & (1<<0)));
if (!(CORE_PIN0_DDRREG & CORE_PIN0_BIT))
CORE_PIN0_CONFIG = ((val & (1<<0)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(1, (val & (1<<1)));
if (!(CORE_PIN1_DDRREG & CORE_PIN1_BIT))
CORE_PIN1_CONFIG = ((val & (1<<1)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(2, (val & (1<<2)));
if (!(CORE_PIN2_DDRREG & CORE_PIN2_BIT))
CORE_PIN2_CONFIG = ((val & (1<<2)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(3, (val & (1<<3)));
if (!(CORE_PIN3_DDRREG & CORE_PIN3_BIT))
CORE_PIN3_CONFIG = ((val & (1<<3)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(4, (val & (1<<4)));
if (!(CORE_PIN4_DDRREG & CORE_PIN4_BIT))
CORE_PIN4_CONFIG = ((val & (1<<4)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(5, (val & (1<<5)));
if (!(CORE_PIN5_DDRREG & CORE_PIN5_BIT))
CORE_PIN5_CONFIG = ((val & (1<<5)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(6, (val & (1<<6)));
if (!(CORE_PIN6_DDRREG & CORE_PIN6_BIT))
CORE_PIN6_CONFIG = ((val & (1<<6)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(7, (val & (1<<7)));
if (!(CORE_PIN7_DDRREG & CORE_PIN7_BIT))
CORE_PIN7_CONFIG = ((val & (1<<7)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
return *this;
}
inline PORTDemulation & operator |= (int val) __attribute__((always_inline)) {
if (val & (1<<0)) {
digitalWriteFast(0, HIGH);
if (!(CORE_PIN0_DDRREG & CORE_PIN0_BIT)) CORE_PIN0_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<1)) {
digitalWriteFast(1, HIGH);
if (!(CORE_PIN1_DDRREG & CORE_PIN1_BIT)) CORE_PIN1_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<2)) {
digitalWriteFast(2, HIGH);
if (!(CORE_PIN2_DDRREG & CORE_PIN2_BIT)) CORE_PIN2_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<3)) {
digitalWriteFast(3, HIGH);
if (!(CORE_PIN3_DDRREG & CORE_PIN3_BIT)) CORE_PIN3_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<4)) {
digitalWriteFast(4, HIGH);
if (!(CORE_PIN4_DDRREG & CORE_PIN4_BIT)) CORE_PIN4_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<5)) {
digitalWriteFast(5, HIGH);
if (!(CORE_PIN5_DDRREG & CORE_PIN5_BIT)) CORE_PIN5_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<6)) {
digitalWriteFast(6, HIGH);
if (!(CORE_PIN6_DDRREG & CORE_PIN6_BIT)) CORE_PIN6_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<7)) {
digitalWriteFast(7, HIGH);
if (!(CORE_PIN7_DDRREG & CORE_PIN7_BIT)) CORE_PIN7_CONFIG = CONFIG_PULLUP;
}
return *this;
}
inline PORTDemulation & operator &= (int val) __attribute__((always_inline)) {
if (!(val & (1<<0))) {
digitalWriteFast(0, LOW);
if (!(CORE_PIN0_DDRREG & CORE_PIN0_BIT)) CORE_PIN0_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<1))) {
digitalWriteFast(1, LOW);
if (!(CORE_PIN1_DDRREG & CORE_PIN1_BIT)) CORE_PIN1_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<2))) {
digitalWriteFast(2, LOW);
if (!(CORE_PIN2_DDRREG & CORE_PIN2_BIT)) CORE_PIN2_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<3))) {
digitalWriteFast(3, LOW);
if (!(CORE_PIN3_DDRREG & CORE_PIN3_BIT)) CORE_PIN3_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<4))) {
digitalWriteFast(4, LOW);
if (!(CORE_PIN4_DDRREG & CORE_PIN4_BIT)) CORE_PIN4_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<5))) {
digitalWriteFast(5, LOW);
if (!(CORE_PIN5_DDRREG & CORE_PIN5_BIT)) CORE_PIN5_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<6))) {
digitalWriteFast(6, LOW);
if (!(CORE_PIN6_DDRREG & CORE_PIN6_BIT)) CORE_PIN6_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<7))) {
digitalWriteFast(7, LOW);
if (!(CORE_PIN7_DDRREG & CORE_PIN7_BIT)) CORE_PIN7_CONFIG = CONFIG_NOPULLUP;
}
return *this;
}
};
extern PORTDemulation PORTD;
class PINDemulation
{
public:
inline int operator & (int val) const __attribute__((always_inline)) {
int ret = 0;
if ((val & (1<<0)) && digitalReadFast(0)) ret |= (1<<0);
if ((val & (1<<1)) && digitalReadFast(1)) ret |= (1<<1);
if ((val & (1<<2)) && digitalReadFast(2)) ret |= (1<<2);
if ((val & (1<<3)) && digitalReadFast(3)) ret |= (1<<3);
if ((val & (1<<4)) && digitalReadFast(4)) ret |= (1<<4);
if ((val & (1<<5)) && digitalReadFast(5)) ret |= (1<<5);
if ((val & (1<<6)) && digitalReadFast(6)) ret |= (1<<6);
if ((val & (1<<7)) && digitalReadFast(7)) ret |= (1<<7);
return ret;
}
operator int () const __attribute__((always_inline)) {
int ret = 0;
if (digitalReadFast(0)) ret |= (1<<0);
if (digitalReadFast(1)) ret |= (1<<1);
if (digitalReadFast(2)) ret |= (1<<2);
if (digitalReadFast(3)) ret |= (1<<3);
if (digitalReadFast(4)) ret |= (1<<4);
if (digitalReadFast(5)) ret |= (1<<5);
if (digitalReadFast(6)) ret |= (1<<6);
if (digitalReadFast(7)) ret |= (1<<7);
return ret;
}
};
extern PINDemulation PIND;
class DDRDemulation
{
public:
inline DDRDemulation & operator = (int val) __attribute__((always_inline)) {
if (val & (1<<0)) set0(); else clr0();
if (val & (1<<1)) set1(); else clr1();
if (val & (1<<2)) set2(); else clr2();
if (val & (1<<3)) set3(); else clr3();
if (val & (1<<4)) set4(); else clr4();
if (val & (1<<5)) set5(); else clr5();
if (val & (1<<6)) set6(); else clr6();
if (val & (1<<7)) set7(); else clr7();
return *this;
}
inline DDRDemulation & operator |= (int val) __attribute__((always_inline)) {
if (val & (1<<0)) set0();
if (val & (1<<1)) set1();
if (val & (1<<2)) set2();
if (val & (1<<3)) set3();
if (val & (1<<4)) set4();
if (val & (1<<5)) set5();
if (val & (1<<6)) set6();
if (val & (1<<7)) set7();
return *this;
}
inline DDRDemulation & operator &= (int val) __attribute__((always_inline)) {
if (!(val & (1<<0))) clr0();
if (!(val & (1<<1))) clr1();
if (!(val & (1<<2))) clr2();
if (!(val & (1<<3))) clr3();
if (!(val & (1<<4))) clr4();
if (!(val & (1<<5))) clr5();
if (!(val & (1<<6))) clr6();
if (!(val & (1<<7))) clr7();
return *this;
}
private:
inline void set0() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN0_DDRREG, CORE_PIN0_BIT);
CORE_PIN0_CONFIG = CONFIG_PULLUP;
}
inline void set1() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN1_DDRREG, CORE_PIN1_BIT);
CORE_PIN1_CONFIG = CONFIG_PULLUP;
}
inline void set2() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN2_DDRREG, CORE_PIN2_BIT);
CORE_PIN2_CONFIG = CONFIG_PULLUP;
}
inline void set3() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN3_DDRREG, CORE_PIN3_BIT);
CORE_PIN3_CONFIG = CONFIG_PULLUP;
}
inline void set4() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN4_DDRREG, CORE_PIN4_BIT);
CORE_PIN4_CONFIG = CONFIG_PULLUP;
}
inline void set5() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN5_DDRREG, CORE_PIN5_BIT);
CORE_PIN5_CONFIG = CONFIG_PULLUP;
}
inline void set6() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN6_DDRREG, CORE_PIN6_BIT);
CORE_PIN6_CONFIG = CONFIG_PULLUP;
}
inline void set7() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN7_DDRREG, CORE_PIN7_BIT);
CORE_PIN7_CONFIG = CONFIG_PULLUP;
}
inline void clr0() __attribute__((always_inline)) {
CORE_PIN0_CONFIG = ((CORE_PIN0_PORTREG & CORE_PIN0_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN0_DDRREG, CORE_PIN0_BIT);
}
inline void clr1() __attribute__((always_inline)) {
CORE_PIN1_CONFIG = ((CORE_PIN1_PORTREG & CORE_PIN1_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN1_DDRREG, CORE_PIN1_BIT);
}
inline void clr2() __attribute__((always_inline)) {
CORE_PIN2_CONFIG = ((CORE_PIN2_PORTREG & CORE_PIN2_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN2_DDRREG, CORE_PIN2_BIT);
}
inline void clr3() __attribute__((always_inline)) {
CORE_PIN3_CONFIG = ((CORE_PIN3_PORTREG & CORE_PIN3_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN3_DDRREG, CORE_PIN3_BIT);
}
inline void clr4() __attribute__((always_inline)) {
CORE_PIN4_CONFIG = ((CORE_PIN4_PORTREG & CORE_PIN4_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN4_DDRREG, CORE_PIN4_BIT);
}
inline void clr5() __attribute__((always_inline)) {
CORE_PIN5_CONFIG = ((CORE_PIN5_PORTREG & CORE_PIN5_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN5_DDRREG, CORE_PIN5_BIT);
}
inline void clr6() __attribute__((always_inline)) {
CORE_PIN6_CONFIG = ((CORE_PIN6_PORTREG & CORE_PIN6_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN6_DDRREG, CORE_PIN6_BIT);
}
inline void clr7() __attribute__((always_inline)) {
CORE_PIN7_CONFIG = ((CORE_PIN7_PORTREG & CORE_PIN7_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN7_DDRREG, CORE_PIN7_BIT);
}
};
extern DDRDemulation DDRD;
class PORTBemulation
{
public:
inline PORTBemulation & operator = (int val) __attribute__((always_inline)) {
digitalWriteFast(8, (val & (1<<0)));
if (!(CORE_PIN8_DDRREG & CORE_PIN8_BIT))
CORE_PIN8_CONFIG = ((val & (1<<0)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(9, (val & (1<<1)));
if (!(CORE_PIN9_DDRREG & CORE_PIN9_BIT))
CORE_PIN9_CONFIG = ((val & (1<<1)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(10, (val & (1<<2)));
if (!(CORE_PIN10_DDRREG & CORE_PIN10_BIT))
CORE_PIN10_CONFIG = ((val & (1<<2)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(11, (val & (1<<3)));
if (!(CORE_PIN11_DDRREG & CORE_PIN11_BIT))
CORE_PIN11_CONFIG = ((val & (1<<3)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(12, (val & (1<<4)));
if (!(CORE_PIN12_DDRREG & CORE_PIN12_BIT))
CORE_PIN12_CONFIG = ((val & (1<<4)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(13, (val & (1<<5)));
if (!(CORE_PIN13_DDRREG & CORE_PIN13_BIT))
CORE_PIN13_CONFIG = ((val & (1<<5)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
return *this;
}
inline PORTBemulation & operator |= (int val) __attribute__((always_inline)) {
if (val & (1<<0)) {
digitalWriteFast(8, HIGH);
if (!(CORE_PIN7_DDRREG & CORE_PIN7_BIT)) CORE_PIN8_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<1)) {
digitalWriteFast(9, HIGH);
if (!(CORE_PIN7_DDRREG & CORE_PIN7_BIT)) CORE_PIN9_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<2)) {
digitalWriteFast(10, HIGH);
if (!(CORE_PIN10_DDRREG & CORE_PIN10_BIT)) CORE_PIN10_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<3)) {
digitalWriteFast(11, HIGH);
if (!(CORE_PIN11_DDRREG & CORE_PIN11_BIT)) CORE_PIN11_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<4)) {
digitalWriteFast(12, HIGH);
if (!(CORE_PIN12_DDRREG & CORE_PIN12_BIT)) CORE_PIN12_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<5)) {
digitalWriteFast(13, HIGH);
if (!(CORE_PIN13_DDRREG & CORE_PIN13_BIT)) CORE_PIN13_CONFIG = CONFIG_PULLUP;
}
return *this;
}
inline PORTBemulation & operator &= (int val) __attribute__((always_inline)) {
if (!(val & (1<<0))) {
digitalWriteFast(8, LOW);
if (!(CORE_PIN8_DDRREG & CORE_PIN8_BIT)) CORE_PIN8_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<1))) {
digitalWriteFast(9, LOW);
if (!(CORE_PIN9_DDRREG & CORE_PIN9_BIT)) CORE_PIN9_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<2))) {
digitalWriteFast(10, LOW);
if (!(CORE_PIN10_DDRREG & CORE_PIN10_BIT)) CORE_PIN10_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<3))) {
digitalWriteFast(11, LOW);
if (!(CORE_PIN11_DDRREG & CORE_PIN11_BIT)) CORE_PIN11_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<4))) {
digitalWriteFast(12, LOW);
if (!(CORE_PIN12_DDRREG & CORE_PIN12_BIT)) CORE_PIN12_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<5))) {
digitalWriteFast(13, LOW);
if (!(CORE_PIN13_DDRREG & CORE_PIN13_BIT)) CORE_PIN13_CONFIG = CONFIG_NOPULLUP;
}
return *this;
}
};
extern PORTBemulation PORTB;
class PINBemulation
{
public:
inline int operator & (int val) const __attribute__((always_inline)) {
int ret = 0;
if ((val & (1<<0)) && digitalReadFast(8)) ret |= (1<<0);
if ((val & (1<<1)) && digitalReadFast(9)) ret |= (1<<1);
if ((val & (1<<2)) && digitalReadFast(10)) ret |= (1<<2);
if ((val & (1<<3)) && digitalReadFast(11)) ret |= (1<<3);
if ((val & (1<<4)) && digitalReadFast(12)) ret |= (1<<4);
if ((val & (1<<5)) && digitalReadFast(13)) ret |= (1<<5);
return ret;
}
operator int () const __attribute__((always_inline)) {
int ret = 0;
if (digitalReadFast(8)) ret |= (1<<0);
if (digitalReadFast(9)) ret |= (1<<1);
if (digitalReadFast(10)) ret |= (1<<2);
if (digitalReadFast(11)) ret |= (1<<3);
if (digitalReadFast(12)) ret |= (1<<4);
if (digitalReadFast(13)) ret |= (1<<5);
return ret;
}
};
extern PINBemulation PINB;
class DDRBemulation
{
public:
inline DDRBemulation & operator = (int val) __attribute__((always_inline)) {
if (val & (1<<0)) set0(); else clr0();
if (val & (1<<1)) set1(); else clr1();
if (val & (1<<2)) set2(); else clr2();
if (val & (1<<3)) set3(); else clr3();
if (val & (1<<4)) set4(); else clr4();
if (val & (1<<5)) set5(); else clr5();
return *this;
}
inline DDRBemulation & operator |= (int val) __attribute__((always_inline)) {
if (val & (1<<0)) set0();
if (val & (1<<1)) set1();
if (val & (1<<2)) set2();
if (val & (1<<3)) set3();
if (val & (1<<4)) set4();
if (val & (1<<5)) set5();
return *this;
}
inline DDRBemulation & operator &= (int val) __attribute__((always_inline)) {
if (!(val & (1<<0))) clr0();
if (!(val & (1<<1))) clr1();
if (!(val & (1<<2))) clr2();
if (!(val & (1<<3))) clr3();
if (!(val & (1<<4))) clr4();
if (!(val & (1<<5))) clr5();
return *this;
}
private:
inline void set0() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN8_DDRREG, CORE_PIN8_BIT);
CORE_PIN8_CONFIG = CONFIG_PULLUP;
}
inline void set1() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN9_DDRREG, CORE_PIN9_BIT);
CORE_PIN9_CONFIG = CONFIG_PULLUP;
}
inline void set2() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN10_DDRREG, CORE_PIN10_BIT);
CORE_PIN10_CONFIG = CONFIG_PULLUP;
}
inline void set3() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN11_DDRREG, CORE_PIN11_BIT);
CORE_PIN11_CONFIG = CONFIG_PULLUP;
}
inline void set4() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN12_DDRREG, CORE_PIN12_BIT);
CORE_PIN12_CONFIG = CONFIG_PULLUP;
}
inline void set5() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN13_DDRREG, CORE_PIN13_BIT);
CORE_PIN13_CONFIG = CONFIG_PULLUP;
}
inline void clr0() __attribute__((always_inline)) {
CORE_PIN8_CONFIG = ((CORE_PIN8_PORTREG & CORE_PIN8_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN8_DDRREG, CORE_PIN8_BIT);
}
inline void clr1() __attribute__((always_inline)) {
CORE_PIN9_CONFIG = ((CORE_PIN9_PORTREG & CORE_PIN9_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN9_DDRREG, CORE_PIN9_BIT);
}
inline void clr2() __attribute__((always_inline)) {
CORE_PIN10_CONFIG = ((CORE_PIN10_PORTREG & CORE_PIN10_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN10_DDRREG, CORE_PIN10_BIT);
}
inline void clr3() __attribute__((always_inline)) {
CORE_PIN11_CONFIG = ((CORE_PIN11_PORTREG & CORE_PIN11_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN11_DDRREG, CORE_PIN11_BIT);
}
inline void clr4() __attribute__((always_inline)) {
CORE_PIN12_CONFIG = ((CORE_PIN12_PORTREG & CORE_PIN12_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN12_DDRREG, CORE_PIN12_BIT);
}
inline void clr5() __attribute__((always_inline)) {
CORE_PIN13_CONFIG = ((CORE_PIN13_PORTREG & CORE_PIN13_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN13_DDRREG, CORE_PIN13_BIT);
}
};
extern DDRBemulation DDRB;
class PORTCemulation
{
public:
inline PORTCemulation & operator = (int val) __attribute__((always_inline)) {
digitalWriteFast(14, (val & (1<<0)));
if (!(CORE_PIN14_DDRREG & CORE_PIN14_BIT))
CORE_PIN14_CONFIG = ((val & (1<<0)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(15, (val & (1<<1)));
if (!(CORE_PIN15_DDRREG & CORE_PIN15_BIT))
CORE_PIN15_CONFIG = ((val & (1<<1)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(16, (val & (1<<2)));
if (!(CORE_PIN16_DDRREG & CORE_PIN16_BIT))
CORE_PIN16_CONFIG = ((val & (1<<2)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(17, (val & (1<<3)));
if (!(CORE_PIN17_DDRREG & CORE_PIN17_BIT))
CORE_PIN17_CONFIG = ((val & (1<<3)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(18, (val & (1<<4)));
if (!(CORE_PIN18_DDRREG & CORE_PIN18_BIT))
CORE_PIN18_CONFIG = ((val & (1<<4)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
digitalWriteFast(19, (val & (1<<5)));
if (!(CORE_PIN19_DDRREG & CORE_PIN19_BIT))
CORE_PIN19_CONFIG = ((val & (1<<5)) ? CONFIG_PULLUP : CONFIG_NOPULLUP);
return *this;
}
inline PORTCemulation & operator |= (int val) __attribute__((always_inline)) {
if (val & (1<<0)) {
digitalWriteFast(14, HIGH);
if (!(CORE_PIN14_DDRREG & CORE_PIN14_BIT)) CORE_PIN14_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<1)) {
digitalWriteFast(15, HIGH);
if (!(CORE_PIN15_DDRREG & CORE_PIN15_BIT)) CORE_PIN15_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<2)) {
digitalWriteFast(16, HIGH);
if (!(CORE_PIN16_DDRREG & CORE_PIN16_BIT)) CORE_PIN16_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<3)) {
digitalWriteFast(17, HIGH);
if (!(CORE_PIN17_DDRREG & CORE_PIN17_BIT)) CORE_PIN17_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<4)) {
digitalWriteFast(18, HIGH);
if (!(CORE_PIN18_DDRREG & CORE_PIN18_BIT)) CORE_PIN18_CONFIG = CONFIG_PULLUP;
}
if (val & (1<<5)) {
digitalWriteFast(19, HIGH);
if (!(CORE_PIN19_DDRREG & CORE_PIN19_BIT)) CORE_PIN19_CONFIG = CONFIG_PULLUP;
}
return *this;
}
inline PORTCemulation & operator &= (int val) __attribute__((always_inline)) {
if (!(val & (1<<0))) {
digitalWriteFast(14, LOW);
if (!(CORE_PIN14_DDRREG & CORE_PIN14_BIT)) CORE_PIN14_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<1))) {
digitalWriteFast(15, LOW);
if (!(CORE_PIN15_DDRREG & CORE_PIN15_BIT)) CORE_PIN15_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<2))) {
digitalWriteFast(16, LOW);
if (!(CORE_PIN16_DDRREG & CORE_PIN16_BIT)) CORE_PIN16_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<3))) {
digitalWriteFast(17, LOW);
if (!(CORE_PIN17_DDRREG & CORE_PIN17_BIT)) CORE_PIN17_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<4))) {
digitalWriteFast(18, LOW);
if (!(CORE_PIN18_DDRREG & CORE_PIN18_BIT)) CORE_PIN18_CONFIG = CONFIG_NOPULLUP;
}
if (!(val & (1<<5))) {
digitalWriteFast(19, LOW);
if (!(CORE_PIN19_DDRREG & CORE_PIN19_BIT)) CORE_PIN19_CONFIG = CONFIG_NOPULLUP;
}
return *this;
}
};
extern PORTCemulation PORTC;
class PINCemulation
{
public:
inline int operator & (int val) const __attribute__((always_inline)) {
int ret = 0;
if ((val & (1<<0)) && digitalReadFast(8)) ret |= (1<<0);
if ((val & (1<<1)) && digitalReadFast(9)) ret |= (1<<1);
if ((val & (1<<2)) && digitalReadFast(10)) ret |= (1<<2);
if ((val & (1<<3)) && digitalReadFast(11)) ret |= (1<<3);
if ((val & (1<<4)) && digitalReadFast(12)) ret |= (1<<4);
if ((val & (1<<5)) && digitalReadFast(13)) ret |= (1<<5);
return ret;
}
operator int () const __attribute__((always_inline)) {
int ret = 0;
if (digitalReadFast(8)) ret |= (1<<0);
if (digitalReadFast(9)) ret |= (1<<1);
if (digitalReadFast(10)) ret |= (1<<2);
if (digitalReadFast(11)) ret |= (1<<3);
if (digitalReadFast(12)) ret |= (1<<4);
if (digitalReadFast(13)) ret |= (1<<5);
return ret;
}
};
extern PINCemulation PINC;
class DDRCemulation
{
public:
inline DDRCemulation & operator = (int val) __attribute__((always_inline)) {
if (val & (1<<0)) set0(); else clr0();
if (val & (1<<1)) set1(); else clr1();
if (val & (1<<2)) set2(); else clr2();
if (val & (1<<3)) set3(); else clr3();
if (val & (1<<4)) set4(); else clr4();
if (val & (1<<5)) set5(); else clr5();
return *this;
}
inline DDRCemulation & operator |= (int val) __attribute__((always_inline)) {
if (val & (1<<0)) set0();
if (val & (1<<1)) set1();
if (val & (1<<2)) set2();
if (val & (1<<3)) set3();
if (val & (1<<4)) set4();
if (val & (1<<5)) set5();
return *this;
}
inline DDRCemulation & operator &= (int val) __attribute__((always_inline)) {
if (!(val & (1<<0))) clr0();
if (!(val & (1<<1))) clr1();
if (!(val & (1<<2))) clr2();
if (!(val & (1<<3))) clr3();
if (!(val & (1<<4))) clr4();
if (!(val & (1<<5))) clr5();
return *this;
}
private:
inline void set0() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN14_DDRREG, CORE_PIN14_BIT);
CORE_PIN14_CONFIG = CONFIG_PULLUP;
}
inline void set1() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN15_DDRREG, CORE_PIN15_BIT);
CORE_PIN15_CONFIG = CONFIG_PULLUP;
}
inline void set2() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN16_DDRREG, CORE_PIN16_BIT);
CORE_PIN16_CONFIG = CONFIG_PULLUP;
}
inline void set3() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN17_DDRREG, CORE_PIN17_BIT);
CORE_PIN17_CONFIG = CONFIG_PULLUP;
}
inline void set4() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN18_DDRREG, CORE_PIN18_BIT);
CORE_PIN18_CONFIG = CONFIG_PULLUP;
}
inline void set5() __attribute__((always_inline)) {
GPIO_SETBIT_ATOMIC(CORE_PIN19_DDRREG, CORE_PIN19_BIT);
CORE_PIN19_CONFIG = CONFIG_PULLUP;
}
inline void clr0() __attribute__((always_inline)) {
CORE_PIN14_CONFIG = ((CORE_PIN14_PORTREG & CORE_PIN14_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN14_DDRREG, CORE_PIN14_BIT);
}
inline void clr1() __attribute__((always_inline)) {
CORE_PIN15_CONFIG = ((CORE_PIN15_PORTREG & CORE_PIN15_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN15_DDRREG, CORE_PIN15_BIT);
}
inline void clr2() __attribute__((always_inline)) {
CORE_PIN16_CONFIG = ((CORE_PIN16_PORTREG & CORE_PIN16_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN16_DDRREG, CORE_PIN16_BIT);
}
inline void clr3() __attribute__((always_inline)) {
CORE_PIN17_CONFIG = ((CORE_PIN17_PORTREG & CORE_PIN17_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN17_DDRREG, CORE_PIN17_BIT);
}
inline void clr4() __attribute__((always_inline)) {
CORE_PIN18_CONFIG = ((CORE_PIN18_PORTREG & CORE_PIN18_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN18_DDRREG, CORE_PIN18_BIT);
}
inline void clr5() __attribute__((always_inline)) {
CORE_PIN19_CONFIG = ((CORE_PIN19_PORTREG & CORE_PIN19_BITMASK)
? CONFIG_PULLUP : CONFIG_NOPULLUP);
GPIO_CLRBIT_ATOMIC(CORE_PIN19_DDRREG, CORE_PIN19_BIT);
}
};
extern DDRCemulation DDRC;
#define PINB0 0
#define PINB1 1
#define PINB2 2
#define PINB3 3
#define PINB4 4
#define PINB5 5
#define PINB6 6
#define PINB7 7
#define DDB0 0
#define DDB1 1
#define DDB2 2
#define DDB3 3
#define DDB4 4
#define DDB5 5
#define DDB6 6
#define DDB7 7
#define PORTB0 0
#define PORTB1 1
#define PORTB2 2
#define PORTB3 3
#define PORTB4 4
#define PORTB5 5
#define PORTB6 6
#define PORTB7 7
#define PINC0 0
#define PINC1 1
#define PINC2 2
#define PINC3 3
#define PINC4 4
#define PINC5 5
#define PINC6 6
#define DDC0 0
#define DDC1 1
#define DDC2 2
#define DDC3 3
#define DDC4 4
#define DDC5 5
#define DDC6 6
#define PORTC0 0
#define PORTC1 1
#define PORTC2 2
#define PORTC3 3
#define PORTC4 4
#define PORTC5 5
#define PORTC6 6
#define PIND0 0
#define PIND1 1
#define PIND2 2
#define PIND3 3
#define PIND4 4
#define PIND5 5
#define PIND6 6
#define PIND7 7
#define DDD0 0
#define DDD1 1
#define DDD2 2
#define DDD3 3
#define DDD4 4
#define DDD5 5
#define DDD6 6
#define DDD7 7
#define PORTD0 0
#define PORTD1 1
#define PORTD2 2
#define PORTD3 3
#define PORTD4 4
#define PORTD5 5
#define PORTD6 6
#define PORTD7 7
#if 0
extern "C" {
void serial_print(const char *p);
void serial_phex(uint32_t n);
void serial_phex16(uint32_t n);
void serial_phex32(uint32_t n);
}
#endif
// SPI Control Register SPCR
#define SPIE 7 // SPI Interrupt Enable - not supported
#define SPE 6 // SPI Enable
#define DORD 5 // DORD: Data Order
#define MSTR 4 // MSTR: Master/Slave Select
#define CPOL 3 // CPOL: Clock Polarity
#define CPHA 2 // CPHA: Clock Phase
#define SPR1 1 // Clock: 3 = 125 kHz, 2 = 250 kHz, 1 = 1 MHz, 0->4 MHz
#define SPR0 0
// SPI Status Register SPSR
#define SPIF 7 // SPIF: SPI Interrupt Flag
#define WCOL 6 // WCOL: Write COLlision Flag - not implemented
#define SPI2X 0 // SPI2X: Double SPI Speed Bit
// SPI Data Register SPDR
class SPCRemulation;
class SPSRemulation;
class SPDRemulation;
#if defined(KINETISK)
class SPCRemulation
{
public:
inline SPCRemulation & operator = (int val) __attribute__((always_inline)) {
uint32_t ctar, mcr, sim6;
//serial_print("SPCR=");
//serial_phex(val);
//serial_print("\n");
sim6 = SIM_SCGC6;
if (!(sim6 & SIM_SCGC6_SPI0)) {
//serial_print("init1\n");
SIM_SCGC6 = sim6 | SIM_SCGC6_SPI0;
SPI0_CTAR0 = SPI_CTAR_FMSZ(7) | SPI_CTAR_PBR(1) | SPI_CTAR_BR(1) | SPI_CTAR_CSSCK(1);
}
if (!(val & (1<<SPE))) {
SPI0_MCR |= SPI_MCR_MDIS; // TODO: use bitband for atomic access
}
ctar = SPI_CTAR_FMSZ(7) | SPI_CTAR_PBR(1);
if (val & (1<<DORD)) ctar |= SPI_CTAR_LSBFE;
if (val & (1<<CPOL)) ctar |= SPI_CTAR_CPOL;
if (val & (1<<CPHA)) {
ctar |= SPI_CTAR_CPHA;
if ((val & 3) == 0) {
ctar |= SPI_CTAR_BR(1) | SPI_CTAR_ASC(1);
} else if ((val & 3) == 1) {
ctar |= SPI_CTAR_BR(4) | SPI_CTAR_ASC(4);
} else if ((val & 3) == 2) {
ctar |= SPI_CTAR_BR(6) | SPI_CTAR_ASC(6);
} else {
ctar |= SPI_CTAR_BR(7) | SPI_CTAR_ASC(7);
}
} else {
if ((val & 3) == 0) {
ctar |= SPI_CTAR_BR(1) | SPI_CTAR_CSSCK(1);
} else if ((val & 3) == 1) {
ctar |= SPI_CTAR_BR(4) | SPI_CTAR_CSSCK(4);
} else if ((val & 3) == 2) {
ctar |= SPI_CTAR_BR(6) | SPI_CTAR_CSSCK(6);
} else {
ctar |= SPI_CTAR_BR(7) | SPI_CTAR_CSSCK(7);
}
}
ctar |= (SPI0_CTAR0 & SPI_CTAR_DBR);
update_ctar(ctar);
mcr = SPI_MCR_DCONF(0) | SPI_MCR_PCSIS(0x1F);
if (val & (1<<MSTR)) mcr |= SPI_MCR_MSTR;
if (val & (1<<SPE)) {
mcr &= ~(SPI_MCR_MDIS | SPI_MCR_HALT);
SPI0_MCR = mcr;
enable_pins();
} else {
mcr |= (SPI_MCR_MDIS | SPI_MCR_HALT);
SPI0_MCR = mcr;
disable_pins();
}
//serial_print("MCR:");
//serial_phex32(SPI0_MCR);
//serial_print(", CTAR0:");
//serial_phex32(SPI0_CTAR0);
//serial_print("\n");
return *this;
}
inline SPCRemulation & operator |= (int val) __attribute__((always_inline)) {
uint32_t sim6;
//serial_print("SPCR |= ");
//serial_phex(val);
//serial_print("\n");
sim6 = SIM_SCGC6;
if (!(sim6 & SIM_SCGC6_SPI0)) {
//serial_print("init2\n");
SIM_SCGC6 = sim6 | SIM_SCGC6_SPI0;
SPI0_CTAR0 = SPI_CTAR_FMSZ(7) | SPI_CTAR_PBR(1) | SPI_CTAR_BR(1);
}
if (val & ((1<<DORD)|(1<<CPOL)|(1<<CPHA)|3)) {
uint32_t ctar = SPI0_CTAR0;
if (val & (1<<DORD)) ctar |= SPI_CTAR_LSBFE; // TODO: use bitband
if (val & (1<<CPOL)) ctar |= SPI_CTAR_CPOL;
if ((val & 3) == 1) {
// TODO: implement - is this ever really needed
} else if ((val & 3) == 2) {
// TODO: implement - is this ever really needed
} else if ((val & 3) == 3) {
// TODO: implement - is this ever really needed
}
if (val & (1<<CPHA) && !(ctar & SPI_CTAR_CPHA)) {
ctar |= SPI_CTAR_CPHA;
// TODO: clear SPI_CTAR_CSSCK, set SPI_CTAR_ASC
}
update_ctar(ctar);
}
if (val & (1<<MSTR)) SPI0_MCR |= SPI_MCR_MSTR;
if (val & (1<<SPE)) {
SPI0_MCR &= ~(SPI_MCR_MDIS | SPI_MCR_HALT);
enable_pins();
}
//serial_print("MCR:");
//serial_phex32(SPI0_MCR);
//serial_print(", CTAR0:");
//serial_phex32(SPI0_CTAR0);
//serial_print("\n");
return *this;
}
inline SPCRemulation & operator &= (int val) __attribute__((always_inline)) {
//serial_print("SPCR &= ");
//serial_phex(val);
//serial_print("\n");
SIM_SCGC6 |= SIM_SCGC6_SPI0;
if (!(val & (1<<SPE))) {
SPI0_MCR |= (SPI_MCR_MDIS | SPI_MCR_HALT);
disable_pins();
}
if ((val & ((1<<DORD)|(1<<CPOL)|(1<<CPHA)|3)) != ((1<<DORD)|(1<<CPOL)|(1<<CPHA)|3)) {
uint32_t ctar = SPI0_CTAR0;
if (!(val & (1<<DORD))) ctar &= ~SPI_CTAR_LSBFE; // TODO: use bitband
if (!(val & (1<<CPOL))) ctar &= ~SPI_CTAR_CPOL;
if ((val & 3) == 0) {
// TODO: implement - is this ever really needed
} else if ((val & 3) == 1) {
// TODO: implement - is this ever really needed
} else if ((val & 3) == 2) {
// TODO: implement - is this ever really needed
}
if (!(val & (1<<CPHA)) && (ctar & SPI_CTAR_CPHA)) {
ctar &= ~SPI_CTAR_CPHA;
// TODO: set SPI_CTAR_ASC, clear SPI_CTAR_CSSCK
}
update_ctar(ctar);
}
if (!(val & (1<<MSTR))) SPI0_MCR &= ~SPI_MCR_MSTR;
return *this;
}
inline int operator & (int val) const __attribute__((always_inline)) {
int ret = 0;
//serial_print("SPCR & ");
//serial_phex(val);
//serial_print("\n");
SIM_SCGC6 |= SIM_SCGC6_SPI0;
if ((val & (1<<DORD)) && (SPI0_CTAR0 & SPI_CTAR_LSBFE)) ret |= (1<<DORD);
if ((val & (1<<CPOL)) && (SPI0_CTAR0 & SPI_CTAR_CPOL)) ret |= (1<<CPOL);
if ((val & (1<<CPHA)) && (SPI0_CTAR0 & SPI_CTAR_CPHA)) ret |= (1<<CPHA);
if ((val & 3) == 3) {
uint32_t dbr = SPI0_CTAR0 & 15;
if (dbr <= 1) {
} else if (dbr <= 4) {
ret |= (1<<SPR0);
} else if (dbr <= 6) {
ret |= (1<<SPR1);
} else {
ret |= (1<<SPR1)|(1<<SPR0);
}
} else if ((val & 3) == 1) {
// TODO: implement - is this ever really needed
} else if ((val & 3) == 2) {
// TODO: implement - is this ever really needed
}
if (val & (1<<SPE) && (!(SPI0_MCR & SPI_MCR_MDIS))) ret |= (1<<SPE);
if (val & (1<<MSTR) && (SPI0_MCR & SPI_MCR_MSTR)) ret |= (1<<MSTR);
//serial_print("ret = ");
//serial_phex(ret);
//serial_print("\n");
return ret;
}
operator int () const __attribute__((always_inline)) {
int ret = 0;
if ((SIM_SCGC6 & SIM_SCGC6_SPI0)) {
int ctar = SPI0_CTAR0;
if (ctar & SPI_CTAR_LSBFE) ret |= (1<<DORD);
if (ctar & SPI_CTAR_CPOL) ret |= (1<<CPOL);
if (ctar & SPI_CTAR_CPHA) ret |= (1<<CPHA);
ctar &= 15;
if (ctar <= 1) {
} else if (ctar <= 4) {
ret |= (1<<SPR0);
} else if (ctar <= 6) {
ret |= (1<<SPR1);
} else {
ret |= (1<<SPR1)|(1<<SPR0);
}
int mcr = SPI0_MCR;
if (!(mcr & SPI_MCR_MDIS)) ret |= (1<<SPE);
if (mcr & SPI_MCR_MSTR) ret |= (1<<MSTR);
}
return ret;
}
inline void setMOSI(uint8_t pin) __attribute__((always_inline)) {
if (pin == 11) pinout &= ~1;
if (pin == 7) pinout |= 1;
}
inline void setMISO(uint8_t pin) __attribute__((always_inline)) {
if (pin == 12) pinout &= ~2;
if (pin == 8) pinout |= 2;