Interrupt driven I2C.

1 files changed, 26 insertions, 2 deletions

diff --git a/i2c.h b/i2c.h
index 0681160..3d58056 100644
--- a/i2c.h
+++ b/i2c.h
@@ -3,12 +3,36 @@
 
 #include <stdint.h>
 
+#include "interrupt.h"
+
 class I2C {
+	friend void interrupt<Interrupt::I2C1_EV>();
+	friend void interrupt<Interrupt::I2C1_ER>();
+	
+	private:
+		static I2C* self;
+		
+		volatile uint8_t addr;
+		volatile uint8_t writing;
+		volatile uint8_t reading;
+		volatile uint8_t* write_p;
+		volatile uint8_t* read_p;
+		
+		volatile bool busy;
+		
+		void irq_ev();
+		void irq_er();
+		void handle_error();
+	
 	public:
+		I2C() {
+			self = this;
+		}
+		
 		void enable();
 		
-		void write_reg(uint8_t addr, uint8_t reg, uint8_t data);
-		void read_reg(uint8_t addr, uint8_t reg, uint8_t len, uint8_t* buf);
+		void write_reg(uint8_t addr_, uint8_t reg, uint8_t data);
+		void read_reg(uint8_t addr_, uint8_t reg, uint8_t len, uint8_t* buf);
 };