diff options
| -rw-r--r-- | include/arduino-nano/driver/gpio.h | 85 | ||||
| -rw-r--r-- | src/arch/arduino-nano/Makefile.inc | 1 |
2 files changed, 86 insertions, 0 deletions
diff --git a/include/arduino-nano/driver/gpio.h b/include/arduino-nano/driver/gpio.h index 177e7c5..17bdfc8 100644 --- a/include/arduino-nano/driver/gpio.h +++ b/include/arduino-nano/driver/gpio.h @@ -1,16 +1,101 @@ #ifndef GPIO_H #define GPIO_H +#include <avr/io.h> + class GPIO { private: GPIO(const GPIO ©); public: GPIO () {} + + enum Pin : unsigned char { + 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, + pd0 = 24, + pd1 = 25, + pd2 = 26, + pd3 = 27, + pd4 = 28, + pd5 = 29, + pd6 = 30, + pd7 = 31 + }; + void setup(); void led_on(unsigned char id); void led_off(unsigned char id); void led_toggle(unsigned char id); + inline void input(unsigned char const pin) { + if (pin < 8) { + } 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) { + if (pin < 8) { + } 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 unsigned char read(unsigned char const pin) { + if (pin < 8) { + } + 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) { + } 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); + } + } + } }; extern GPIO gpio; diff --git a/src/arch/arduino-nano/Makefile.inc b/src/arch/arduino-nano/Makefile.inc index a7c0fa9..cd6227b 100644 --- a/src/arch/arduino-nano/Makefile.inc +++ b/src/arch/arduino-nano/Makefile.inc @@ -26,6 +26,7 @@ OBJECTS = ${TARGETS:.cc=.o} build/system.elf: ${OBJECTS} ${CXX} ${COMMON_FLAGS} ${CXXFLAGS} -Wl,--gc-sections -o $@ ${OBJECTS} + avr-size --format=avr --mcu=${MCU} $@ build/system.hex: build/system.elf ${OBJCOPY} -O ihex ${@:.hex=.elf} $@ |