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*
* SPDX-License-Identifier: BSD-2-Clause
*/
#ifndef GPIO_H
#define GPIO_H
#include <avr/io.h>
class GPIO {
private:
GPIO(const GPIO ©);
public:
GPIO () {}
enum Pin : unsigned char {
pa0 = 0,
pa1 = 1,
pa2 = 2,
pa3 = 3,
pa4 = 4,
pa5 = 5,
pa6 = 6,
pa7 = 7,
pb0 = 8,
pb1 = 9,
pb2 = 10,
pb3 = 11,
pb4 = 12,
pb5 = 13,
pb6 = 14,
pb7 = 15,
pc0 = 16,
pc1 = 17,
pc2 = 18,
pc3 = 19,
pc4 = 20,
pc5 = 21,
pc6 = 22,
pc7 = 23,
pd0 = 24,
pd1 = 25,
pd2 = 26,
pd3 = 27,
pd4 = 28,
pd5 = 29,
pd6 = 30,
pd7 = 31,
pe0 = 32,
pe1 = 33,
pe2 = 34,
pe3 = 35,
pe4 = 36,
pe5 = 37,
pe6 = 38,
pe7 = 39,
pf0 = 40,
pf1 = 41,
pf2 = 42,
pf3 = 43,
pf4 = 44,
pf5 = 45,
pf6 = 46,
pf7 = 47,
pg0 = 48,
pg1 = 49,
pg2 = 50,
pg3 = 51,
pg4 = 52,
pg5 = 53,
ph0 = 56,
ph1 = 57,
ph2 = 58,
ph3 = 59,
ph4 = 60,
ph5 = 61,
ph6 = 62,
ph7 = 63,
pj0 = 64,
pj1 = 65,
pj2 = 66,
pj3 = 67,
pj4 = 68,
pj5 = 69,
pj6 = 70,
pj7 = 71,
pk0 = 72,
pk1 = 73,
pk2 = 74,
pk3 = 75,
pk4 = 76,
pk5 = 77,
pk6 = 78,
pk7 = 79,
pl0 = 80,
pl1 = 81,
pl2 = 82,
pl3 = 83,
pl4 = 84,
pl5 = 85,
pl6 = 86,
pl7 = 87
};
inline void setup() {
DDRB = _BV(PB7);
}
inline volatile uint8_t * pinToPort(uint8_t pin) {
if (pin <= pa7) {
return &PORTA;
}
if (pin <= pb7) {
return &PORTB;
}
if (pin <= pc7) {
return &PORTC;
}
return &PORTD;
}
inline unsigned char pinToBitmask(uint8_t pin) {
return _BV(pin % 8);
}
#pragma GCC diagnostic ignored "-Wunused-parameter"
inline void led_on(unsigned char id = 0) {
PORTB |= _BV(PB7);
}
inline void led_off(unsigned char id = 0) {
PORTB &= ~_BV(PB7);
}
inline void led_toggle(unsigned char id = 0) {
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PINB = _BV(PB7);
}
inline void input(unsigned char const pin) {
if (pin < 8) {
DDRA &= ~_BV(pin);
} else if (pin < 16) {
DDRB &= ~_BV(pin - 8);
} else if (pin < 24) {
DDRC &= ~_BV(pin - 16);
} else if (pin < 32) {
DDRD &= ~_BV(pin - 24);
}
}
#pragma GCC diagnostic pop
inline void input(unsigned char const pin, unsigned char const pull) {
if (pin < 8) {
DDRA &= ~_BV(pin);
PORTA |= _BV(pin);
} else if (pin < 16) {
DDRB &= ~_BV(pin - 8);
PORTB |= _BV(pin - 8);
} else if (pin < 24) {
DDRC &= ~_BV(pin - 16);
PORTC |= _BV(pin - 16);
} else if (pin < 32) {
DDRD &= ~_BV(pin - 24);
PORTD |= _BV(pin - 24);
}
}
inline void output(unsigned char const pin) {
if (pin < 8) {
DDRA |= _BV(pin);
} else if (pin < 16) {
DDRB |= _BV(pin - 8);
} else if (pin < 24) {
DDRC |= _BV(pin - 16);
} else if (pin < 32) {
DDRD |= _BV(pin - 24);
} else if (pin < 40) {
DDRE |= _BV(pin - 32);
} else if (pin < 48) {
DDRF |= _BV(pin - 40);
} else if (pin < 56) {
DDRG |= _BV(pin - 48);
} else if (pin < 64) {
DDRH |= _BV(pin - 56);
} else if (pin < 72) {
DDRJ |= _BV(pin - 64);
} else if (pin < 80) {
DDRK |= _BV(pin - 72);
} else if (pin < 88) {
DDRL |= _BV(pin - 80);
}
}
inline void output(unsigned char const pin, unsigned char const value) {
if (pin < 8) {
PORTA = value ? (PORTA | _BV(pin)) : (PORTA & ~_BV(pin));
DDRA |= _BV(pin);
} else if (pin < 16) {
PORTB = value ? (PORTB | _BV(pin - 8)) : (PORTB & ~_BV(pin - 8));
DDRB |= _BV(pin - 8);
} else if (pin < 24) {
PORTC = value ? (PORTC | _BV(pin - 16)) : (PORTC & ~_BV(pin - 16));
DDRC |= _BV(pin - 16);
} else if (pin < 32) {
PORTD = value ? (PORTD | _BV(pin - 24)) : (PORTD & ~_BV(pin - 24));
DDRD |= _BV(pin - 24);
} else if (pin < 40) {
PORTE = value ? (PORTE | _BV(pin - 32)) : (PORTE & ~_BV(pin - 32));
DDRE |= _BV(pin - 32);
} else if (pin < 48) {
PORTF = value ? (PORTF | _BV(pin - 40)) : (PORTF & ~_BV(pin - 40));
DDRF |= _BV(pin - 40);
} else if (pin < 56) {
PORTG = value ? (PORTG | _BV(pin - 48)) : (PORTG & ~_BV(pin - 48));
DDRG |= _BV(pin - 48);
} else if (pin < 64) {
PORTH = value ? (PORTH | _BV(pin - 56)) : (PORTH & ~_BV(pin - 56));
DDRH |= _BV(pin - 56);
} else if (pin < 72) {
PORTJ = value ? (PORTJ | _BV(pin - 64)) : (PORTJ & ~_BV(pin - 64));
DDRJ |= _BV(pin - 64);
} else if (pin < 80) {
PORTK = value ? (PORTK | _BV(pin - 72)) : (PORTK & ~_BV(pin - 72));
DDRK |= _BV(pin - 72);
} else if (pin < 88) {
PORTL = value ? (PORTL | _BV(pin - 80)) : (PORTL & ~_BV(pin - 80));
DDRL |= _BV(pin - 80);
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}
}
inline unsigned char read(unsigned char const pin) {
if (pin < 8) {
return (PINA & _BV(pin));
}
if (pin < 16) {
return (PINB & _BV(pin - 8));
}
if (pin < 24) {
return (PINC & _BV(pin - 16));
}
if (pin < 32) {
return (PIND & _BV(pin - 24));
}
return 0;
}
inline void write(unsigned char const pin, unsigned char value) {
if (pin < 8) {
if (value) {
PORTA |= _BV(pin);
} else {
PORTA &= ~_BV(pin);
}
} else if (pin < 16) {
if (value) {
PORTB |= _BV(pin - 8);
} else {
PORTB &= ~_BV(pin - 8);
}
} else if (pin < 24) {
if (value) {
PORTC |= _BV(pin - 16);
} else {
PORTC &= ~_BV(pin - 16);
}
} else if (pin < 32) {
if (value) {
PORTD |= _BV(pin - 24);
} else {
PORTD &= ~_BV(pin - 24);
}
}
}
};
extern GPIO gpio;
#endif