#include <linux/ethtool.h>
#include <linux/mii.h>
+/**
+ * mii_ethtool_gset - get settings that are specified in @ecmd
+ * @mii: MII interface
+ * @ecmd: requested ethtool_cmd
+ *
+ * Returns 0 for success, negative on error.
+ */
int mii_ethtool_gset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
{
struct net_device *dev = mii->dev;
if (bmcr & BMCR_ANENABLE) {
ecmd->advertising |= ADVERTISED_Autoneg;
ecmd->autoneg = AUTONEG_ENABLE;
-
+
nego = mii_nway_result(advert & lpa);
- if ((bmcr2 & (ADVERTISE_1000HALF | ADVERTISE_1000FULL)) &
+ if ((bmcr2 & (ADVERTISE_1000HALF | ADVERTISE_1000FULL)) &
(lpa2 >> 2))
ecmd->speed = SPEED_1000;
else if (nego == LPA_100FULL || nego == LPA_100HALF)
} else {
ecmd->autoneg = AUTONEG_DISABLE;
- ecmd->speed = ((bmcr & BMCR_SPEED1000 &&
+ ecmd->speed = ((bmcr & BMCR_SPEED1000 &&
(bmcr & BMCR_SPEED100) == 0) ? SPEED_1000 :
(bmcr & BMCR_SPEED100) ? SPEED_100 : SPEED_10);
ecmd->duplex = (bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF;
return 0;
}
+/**
+ * mii_ethtool_sset - set settings that are specified in @ecmd
+ * @mii: MII interface
+ * @ecmd: requested ethtool_cmd
+ *
+ * Returns 0 for success, negative on error.
+ */
int mii_ethtool_sset(struct mii_if_info *mii, struct ethtool_cmd *ecmd)
{
struct net_device *dev = mii->dev;
- if (ecmd->speed != SPEED_10 &&
- ecmd->speed != SPEED_100 &&
+ if (ecmd->speed != SPEED_10 &&
+ ecmd->speed != SPEED_100 &&
ecmd->speed != SPEED_1000)
return -EINVAL;
if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
return -EINVAL;
if ((ecmd->speed == SPEED_1000) && (!mii->supports_gmii))
return -EINVAL;
-
+
/* ignore supported, maxtxpkt, maxrxpkt */
-
+
if (ecmd->autoneg == AUTONEG_ENABLE) {
u32 bmcr, advert, tmp;
u32 advert2 = 0, tmp2 = 0;
}
if ((mii->supports_gmii) && (advert2 != tmp2))
mii->mdio_write(dev, mii->phy_id, MII_CTRL1000, tmp2);
-
+
/* turn on autonegotiation, and force a renegotiate */
bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR);
bmcr |= (BMCR_ANENABLE | BMCR_ANRESTART);
/* turn off auto negotiation, set speed and duplexity */
bmcr = mii->mdio_read(dev, mii->phy_id, MII_BMCR);
- tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 |
+ tmp = bmcr & ~(BMCR_ANENABLE | BMCR_SPEED100 |
BMCR_SPEED1000 | BMCR_FULLDPLX);
if (ecmd->speed == SPEED_1000)
tmp |= BMCR_SPEED1000;
return 0;
}
+/**
+ * mii_check_gmii_support - check if the MII supports Gb interfaces
+ * @mii: the MII interface
+ */
int mii_check_gmii_support(struct mii_if_info *mii)
{
int reg;
return 0;
}
+/**
+ * mii_link_ok - is link status up/ok
+ * @mii: the MII interface
+ *
+ * Returns 1 if the MII reports link status up/ok, 0 otherwise.
+ */
int mii_link_ok (struct mii_if_info *mii)
{
/* first, a dummy read, needed to latch some MII phys */
return 0;
}
+/**
+ * mii_nway_restart - restart NWay (autonegotiation) for this interface
+ * @mii: the MII interface
+ *
+ * Returns 0 on success, negative on error.
+ */
int mii_nway_restart (struct mii_if_info *mii)
{
int bmcr;
return r;
}
+/**
+ * mii_check_link - check MII link status
+ * @mii: MII interface
+ *
+ * If the link status changed (previous != current), call
+ * netif_carrier_on() if current link status is Up or call
+ * netif_carrier_off() if current link status is Down.
+ */
void mii_check_link (struct mii_if_info *mii)
{
int cur_link = mii_link_ok(mii);
netif_carrier_off(mii->dev);
}
+/**
+ * mii_check_media - check the MII interface for a duplex change
+ * @mii: the MII interface
+ * @ok_to_print: OK to print link up/down messages
+ * @init_media: OK to save duplex mode in @mii
+ *
+ * Returns 1 if the duplex mode changed, 0 if not.
+ * If the media type is forced, always returns 0.
+ */
unsigned int mii_check_media (struct mii_if_info *mii,
unsigned int ok_to_print,
unsigned int init_media)
return 0; /* duplex did not change */
}
+/**
+ * generic_mii_ioctl - main MII ioctl interface
+ * @mii_if: the MII interface
+ * @mii_data: MII ioctl data structure
+ * @cmd: MII ioctl command
+ * @duplex_chg_out: pointer to @duplex_changed status if there was no
+ * ioctl error
+ *
+ * Returns 0 on success, negative on error.
+ */
int generic_mii_ioctl(struct mii_if_info *mii_if,
struct mii_ioctl_data *mii_data, int cmd,
unsigned int *duplex_chg_out)