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authorDaniel Friesel <derf@finalrewind.org>2019-09-02 20:01:35 +0200
committerDaniel Friesel <derf@finalrewind.org>2019-09-02 20:01:35 +0200
commit35a62370fb5d9d44d6e7ce24a76472ebc6573a15 (patch)
treed9e37030924c97a04dc023381e9c97a325b24366 /include/arch/arduino-nano
parentb8366cf9a5cf87336352b9862cd536660d243a12 (diff)
Arduino Nano GPIO: Add pinToPort and pinToBitmask helpers
Diffstat (limited to 'include/arch/arduino-nano')
-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);