diff options
Diffstat (limited to 'include/arch/blinkenrocket/driver/gpio.h')
| -rw-r--r-- | include/arch/blinkenrocket/driver/gpio.h | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/include/arch/blinkenrocket/driver/gpio.h b/include/arch/blinkenrocket/driver/gpio.h new file mode 100644 index 0000000..be6eb38 --- /dev/null +++ b/include/arch/blinkenrocket/driver/gpio.h @@ -0,0 +1,178 @@ +#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, + 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, + pc7 = 23, + pd0 = 24, + pd1 = 25, + pd2 = 26, + pd3 = 27, + pd4 = 28, + pd5 = 29, + pd6 = 30, + pd7 = 31 + }; + + inline void setup() { + PORTB = 0; + DDRB = 0; + PORTD = 0x7f; + DDRD = 0xff; + } + inline void led_on(unsigned char id) { + PORTB |= _BV(id); + } + inline void led_off(unsigned char id) { + PORTB &= ~_BV(id); + } + inline void led_toggle(unsigned char id) { + PORTB ^= _BV(id); + } + 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); + } + } + 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); + } + } + 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); + } + } + 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) { + PORTB |= _BV(pin - 16); + } else { + PORTB &= ~_BV(pin - 16); + } + } else if (pin < 32) { + if (value) { + PORTB |= _BV(pin - 24); + } else { + PORTB &= ~_BV(pin - 24); + } + } + } + /* + inline void enable_int(unsigned char const pin) { + if (pin < 8) { + } else if (pin < 16) { + PCMSK0 |= _BV(pin - 8); + } else if (pin < 24) { + PCMSK1 |= _BV(pin - 16); + } else if (pin < 32) { + PCMSK2 |= _BV(pin - 24); + } + } + inline void disable_int(unsigned char const pin) { + if (pin < 8) { + } else if (pin < 16) { + PCMSK0 &= ~_BV(pin - 8); + } else if (pin < 24) { + PCMSK1 &= ~_BV(pin - 16); + } else if (pin < 32) { + PCMSK2 &= ~_BV(pin - 24); + } + } + */ +}; + +extern GPIO gpio; + +#endif |