REG_QRFCR
ks8842_write16(adapter, 0, 0x1000, REG_QRFCR);
ks8842_clear_bits(adapter, 0, 1 << 12, REG_QRFCR);
ks8842_enable_bits(adapter, 0, 1 << 12, REG_QRFCR);