XYCMD_RST
xycsc->ciopb->com = XYCMD_RST;
err = xyc_cmd(xyc, XYCMD_RST, 0, xy->xy_drive, 0, 0, 0, fullmode);
case XYCMD_RST:
iopb->com = XYCMD_RST;
error = xyc_cmd(xyc, XYCMD_RST, 0, xy->xy_drive, 0, 0, 0, fmode);
case XYCMD_RST: