HPBLKSEL_0
outb(HPBLKSEL_0, chip->io + HP_BLKS);
outb(HPBLKSEL_0, chip->io + HP_BLKS);
outb(HPBLKSEL_0, chip->io + HP_BLKS);
outb(HPBLKSEL_0, chip->io + HP_BLKS);
outb(HPBLKSEL_0, chip->io + HP_BLKS);
outb(HPBLKSEL_0, chip->io + HP_BLKS);