C++ (Cpp) smsc_lock_miiの例

コード例 #1

int
smsc_miibus_readreg(struct device *dev, int phy, int reg)
{
	struct smsc_softc *sc = (struct smsc_softc *)dev;
	uint32_t addr;
	uint32_t val = 0;

	smsc_lock_mii(sc);
	if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) {
		smsc_warn_printf(sc, "MII is busy\n");
		goto done;
	}

	addr = (phy << 11) | (reg << 6) | SMSC_MII_READ;
	smsc_write_reg(sc, SMSC_MII_ADDR, addr);

	if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0)
		smsc_warn_printf(sc, "MII read timeout\n");

	smsc_read_reg(sc, SMSC_MII_DATA, &val);
	smsc_unlock_mii(sc);
	
done:
	return (val & 0xFFFF);
}

コード例 #2

ファイル: if_smsc.c プロジェクト: ryoon/netbsd-xhci

void
smsc_miibus_writereg(device_t dev, int phy, int reg, int val)
{
    struct smsc_softc *sc = device_private(dev);
    uint32_t addr;

    if (sc->sc_phyno != phy)
        return;

    smsc_lock_mii(sc);
    if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0) {
        smsc_warn_printf(sc, "MII is busy\n");
        smsc_unlock_mii(sc);
        return;
    }

    smsc_write_reg(sc, SMSC_MII_DATA, val);

    addr = (phy << 11) | (reg << 6) | SMSC_MII_WRITE;
    smsc_write_reg(sc, SMSC_MII_ADDR, addr);
    smsc_unlock_mii(sc);

    if (smsc_wait_for_bits(sc, SMSC_MII_ADDR, SMSC_MII_BUSY) != 0)
        smsc_warn_printf(sc, "MII write timeout\n");
}