u8 w1_touch_bit(struct w1_master *dev, int bit)
{
if (dev->bus_master->touch_bit)
return dev->bus_master->touch_bit(dev->bus_master->data, bit);
else
return w1_read_bit(dev);
}
/**
* w1_touch_bit() - Generates a write-0 or write-1 cycle and samples the level.
* @dev: the master device
* @bit: 0 - write a 0, 1 - write a 0 read the level
*/
static u8 w1_touch_bit(struct w1_master *dev, int bit)
{
if (dev->bus_master->touch_bit)
return dev->bus_master->touch_bit(dev->bus_master->data, bit);
else if (bit)
return w1_read_bit(dev);
else {
w1_write_bit(dev, 0);
return 0;
}
}
u8 w1_read_8(struct w1_master * dev)
{
int i;
u8 res = 0;
if (dev->bus_master->read_byte)
res = dev->bus_master->read_byte(dev->bus_master->data);
else
for (i = 0; i < 8; ++i)
res |= (w1_read_bit(dev) << i);
return res;
}
