wpi_prph_read
if (!(wpi_prph_read(sc, WPI_APMG_RFKILL) & 1)) {
if (!(wpi_prph_read(sc, WPI_BSM_WR_CTRL) &
wpi_prph_write(sc, addr, wpi_prph_read(sc, addr) | mask);
wpi_prph_write(sc, addr, wpi_prph_read(sc, addr) & ~mask);