MODE2
ce4231_write(sc, SP_MISC_INFO, ce4231_read(sc, SP_MISC_INFO) | MODE2);
MODE2, /* Misc control */
ad_write(sc, SP_MISC_INFO, MODE2); /* Set mode2, clear 0x80 */
if ((tmp1 & 0xc0) == (0x80 | MODE2)) {
ad_write(sc, SP_MISC_INFO, ad_read(sc, SP_MISC_INFO) & ~MODE2);
if (!(ad_read(sc, SP_MISC_INFO) & MODE2))
cs4231_read(sc, SP_MISC_INFO) | MODE2);