File content as of revision 2:c4552b8c47c0:

#include "smbus.h"

void smbus_start()
{
	i2c.start();
}

void smbus_stop()
{
	i2c.stop();
}

unsigned char smbus_send_byte(unsigned char byte)
{
	return i2c.write(byte);
}

unsigned char smbus_send_address(unsigned char address, unsigned char rw)
{
	unsigned char addr = address << 1;
	addr = addr + rw;
	
	return smbus_send_byte(addr);
}

unsigned char smbus_read_byte(unsigned char *status)
{
	unsigned char byte;
	
	byte = i2c.read(i2c.ACK);


	return byte;
}

unsigned int smbus_read_uint(unsigned char *status, unsigned char read_mode){

	unsigned char byte0, byte1, low, high, sts = 0;
	unsigned int value = 0x0000;
	
	
	byte0 = smbus_read_byte(&sts);
	*status = sts;

	if(*status != 0x8B)
	 return 0;

	byte1 = smbus_read_byte(&sts);
	*status = sts;
	
	if(read_mode == BIG_ENDIAN){
		high = byte0;
		low = byte1;
	}
	else{
		high = byte1;
		low = byte0;
	}

	value |= low;
	value |= high<<8;

	return value;

}

unsigned char smbus_write_uint(unsigned char read_mode, unsigned int value){

	unsigned char lsb, msb, byte0, byte1, status;

	lsb = value;
	msb = value >> 8;

	if(read_mode == BIG_ENDIAN){
		byte0 = msb;
		byte1 = lsb;
	}
	else{
		byte1 = msb;
		byte0 = lsb;
	}

	status = smbus_send_byte(byte0);
	if(!i2c.ACK) return status;

	status = smbus_send_byte(byte1);
	return status;
	

}