def __init__(self, i2c_addr):
super(Ds6923OpticalInterface, self).__init__()
self.Unexport(['Alias', 'LastChange', 'Name', 'Status'])
self.Unexport(objects=['Stats'])
# The i2c module shifts the address right by 1 for some reason.
self.i2c_addr = i2c_addr << 1
self.i2c = i2c.Util(I2C_BUS)
def testReadOneBlock(self):
buf = [3] * 32
bus = self.smbus_mocker.CreateMock(SMBus)
bus.read_i2c_block_data(self.i2c_addr, 0, 1).AndReturn([0])
bus.read_i2c_block_data(self.i2c_addr, 20, 32).AndReturn(buf)
self.smbus_mocker.ReplayAll()
helper = i2c.Util(bus)
data = helper.Read(self.address, 20, 32)
self.smbus_mocker.VerifyAll()
self.assertEquals(buf, data)
def testWriteOneBlock(self):
buf = [3] * 32
i2c_buf = []
i2c_buf.extend(buf)
bus = self.smbus_mocker.CreateMock(SMBus)
bus.write_i2c_block_data(self.i2c_addr, 20, i2c_buf).AndReturn(None)
self.smbus_mocker.ReplayAll()
helper = i2c.Util(bus)
helper.Write(self.address, 20, buf)
self.smbus_mocker.VerifyAll()
def testWriteThreeBlocks(self):
buf = [3] * 96
i2c_buf = []
i2c_buf.extend([3] * 32)
bus = self.smbus_mocker.CreateMock(SMBus)
bus.write_i2c_block_data(self.i2c_addr, 10, i2c_buf).AndReturn(None)
bus.write_i2c_block_data(self.i2c_addr, 42, i2c_buf).AndReturn(None)
bus.write_i2c_block_data(self.i2c_addr, 74, i2c_buf).AndReturn(None)
self.smbus_mocker.ReplayAll()
helper = i2c.Util(bus)
helper.Write(self.address, 10, buf)
self.smbus_mocker.VerifyAll()
def testReadThreeBlocks(self):
buf = [3] * 96
result = [3] * 32
bus = self.smbus_mocker.CreateMock(SMBus)
bus.read_i2c_block_data(self.i2c_addr, 0, 1).AndReturn([0])
bus.read_i2c_block_data(self.i2c_addr, 10, 32).AndReturn(result)
bus.read_i2c_block_data(self.i2c_addr, 42, 32).AndReturn(result)
bus.read_i2c_block_data(self.i2c_addr, 74, 32).AndReturn(result)
self.smbus_mocker.ReplayAll()
helper = i2c.Util(bus)
data = helper.Read(self.address, 10, 96)
self.smbus_mocker.VerifyAll()
self.assertEquals(buf, data)
def testReadByte(self):
bus = self.smbus_mocker.CreateMock(SMBus)
bus.read_i2c_block_data(self.i2c_addr, 0, 1).AndReturn(None)
bus.read_byte(self.i2c_addr).AndReturn(0)
bus.write_byte(self.i2c_addr, 10).AndReturn(None)
bus.read_byte(self.i2c_addr).AndReturn(1)
bus.write_byte(self.i2c_addr, 11).AndReturn(None)
bus.read_byte(self.i2c_addr).AndReturn(2)
bus.write_byte(self.i2c_addr, 12).AndReturn(None)
bus.read_byte(self.i2c_addr).AndReturn(3)
self.smbus_mocker.ReplayAll()
helper = i2c.Util(bus)
data = helper.Read(self.address, 10, 3)
self.smbus_mocker.VerifyAll()
self.assertEquals([1, 2, 3], data)