wlc_lcnphy_calc_floor
k = wlc_lcnphy_calc_floor(coeff_x, 0);
k = wlc_lcnphy_calc_floor(coeff_x, 1);
k = wlc_lcnphy_calc_floor(coeff_y, 0);
k = wlc_lcnphy_calc_floor(coeff_y, 1);
k = wlc_lcnphy_calc_floor(coeff_x, 0);
k = wlc_lcnphy_calc_floor(coeff_x, 1);
k = wlc_lcnphy_calc_floor(coeff_y, 0);
k = wlc_lcnphy_calc_floor(coeff_y, 1);