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-rw-r--r--include/arch/arduino-nano/driver/gpio.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/arch/arduino-nano/driver/gpio.h b/include/arch/arduino-nano/driver/gpio.h
index 72099bc..0b4ca26 100644
--- a/include/arch/arduino-nano/driver/gpio.h
+++ b/include/arch/arduino-nano/driver/gpio.h
@@ -39,6 +39,18 @@ class GPIO {
inline void setup() {
DDRB = _BV(PB5);
}
+ inline volatile uint8_t * pinToPort(uint8_t pin) {
+ if (pin <= pb7) {
+ return &PORTB;
+ }
+ if (pin <= pc6) {
+ 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) {
PORTB |= _BV(PB5);