1 files changed, 0 insertions, 65 deletions
diff --git a/src/i2c.cc b/src/i2c.cc
deleted file mode 100644
index cc10b19..0000000
--- a/src/i2c.cc
+++ /dev/null
@@ -1,65 +0,0 @@
-#include <avr/io.h>
-#include <avr/interrupt.h>
-#include <util/delay.h>
-#include <stdlib.h>
-
-#include "i2c.h"
-
-I2C i2c;
-
-void I2C::enable()
-{
-	/*
-	 * Set I2C clock frequency to 100kHz.
-	 * freq = F_CPU / (16 + (2 * TWBR * TWPS) )
-	 * let TWPS = "00" = 1
-	 * -> TWBR = (F_CPU / 100000) - 16 / 2
-	 */
-	TWSR = 0; // the lower two bits control TWPS
-	TWBR = ((F_CPU / 100000UL) - 16) / 2;
-}
-
-// TODO Everything[tm] (error handling and generic code)
-// Also TODO: Use interrupts instead of polling
-/*
- * This method encapsules both, transmit and read into one function.
- * Although it could be split into read/write, all reads require a transmit.
- * Hence this approach reduces code duplication.
- * 
- * num_tx, num_rx = number of byte to transmit/receive
- * txbuf, rxbuf = pointer to the uint8_t array for tx/rx
- */
-void I2C::xmit(int num_tx, int num_rx, uint8_t *txbuf, uint8_t *rxbuf)
-{
-	int i;
-
-	if (num_tx) {
-		TWCR = _BV(TWINT) | _BV(TWSTA) | _BV(TWEN);
-		while (!(TWCR & _BV(TWINT)));
-		TWDR = (I2C_EEPROM_ADDR << 1) | 0;
-		TWCR = _BV(TWINT) | _BV(TWEN);
-		while (!(TWCR & _BV(TWINT)));
-		for (i = 0; i < num_tx; i++) {
-			TWDR = txbuf[i];
-			TWCR = _BV(TWINT) | _BV(TWEN);
-			while (!(TWCR & _BV(TWINT)));
-		}
-	}
-	if (num_rx) {
-		TWCR = _BV(TWINT) | _BV(TWSTA) | _BV(TWEN);
-		while (!(TWCR & _BV(TWINT)));
-		TWDR = (I2C_EEPROM_ADDR << 1) | 1;
-		TWCR = _BV(TWINT) | _BV(TWEN);
-		while (!(TWCR & _BV(TWINT)));
-		for (i = 0; i < num_rx; i++) {
-			if (i == num_rx-1) {
-				TWCR = _BV(TWINT) | _BV(TWEN);
-			} else {
-				TWCR = _BV(TWINT) | _BV(TWEN) | _BV(TWEA);
-			}
-			while (!(TWCR & _BV(TWINT)));
-			rxbuf[i] = TWDR;
-		}
-	}
-	TWCR = _BV(TWINT) | _BV(TWSTO) | _BV(TWEN);
-}