TPG_QUAL_GRAY
if (tpg->qual == TPG_QUAL_GRAY ||
case TPG_QUAL_GRAY:
else if (qual == TPG_QUAL_GRAY)
} else if (qual == TPG_QUAL_GRAY) {
tpg_s_quality(&dev->tpg, TPG_QUAL_GRAY, 0);
return TPG_QUAL_GRAY;