1 files changed, 78 insertions, 0 deletions
diff --git a/hal/pin.h b/hal/pin.h
new file mode 100644
index 0000000..e45c178
--- /dev/null
+++ b/hal/pin.h
@@ -0,0 +1,78 @@
+#ifndef PIN_H
+#define PIN_H
+
+#include "gpio.h"
+
+class Pin {
+	private:
+		GPIO_t& g;
+		int n;
+	
+	public:
+		Pin(GPIO_t& gpio, int pin) : g(gpio), n(pin) {}
+		
+		enum Mode {
+			Input,
+			Output,
+			AF,
+			Analog,
+		};
+		
+		enum Type {
+			PushPull,
+			OpenDrain,
+		};
+		
+		void set_mode(Mode m) {
+			g.MODER = (g.MODER & ~(3 << (n * 2))) | m << (n * 2);
+		}
+		
+		void set_type(Type t) {
+			if(t) {
+				g.OTYPER |= 1 << n;
+			} else {
+				g.OTYPER &= ~(1 << n);
+			}
+		}
+		
+		void set_af(int af) {
+			if(n > 8) {
+				g.AFRL = (g.AFRL & ~(0xf << (n * 4))) | af << (n * 4);
+			} else {
+				g.AFRH = (g.AFRL & ~(0xf << (n * 4 - 32))) | af << (n * 4 - 32);
+			}
+		}
+		
+		void on() {
+			g.BSRR = 1 << n;
+		}
+		
+		void off() {
+			g.BSRR = 1 << 16 << n;
+		}
+		
+		void toggle() {
+			if(g.ODR & (1 << n)) {
+				off();
+			} else {
+				on();
+			}
+		}
+};
+static Pin PB0(GPIOD, 0);
+static Pin PB1(GPIOD, 1);
+static Pin PB2(GPIOD, 2);
+static Pin PB3(GPIOD, 3);
+static Pin PB4(GPIOD, 4);
+static Pin PB5(GPIOD, 5);
+static Pin PB6(GPIOD, 6);
+static Pin PB7(GPIOD, 7);
+static Pin PB8(GPIOD, 8);
+static Pin PB9(GPIOD, 9);
+
+static Pin PD12(GPIOD, 12);
+static Pin PD13(GPIOD, 13);
+static Pin PD14(GPIOD, 14);
+static Pin PD15(GPIOD, 15);
+
+#endif