diff options
Diffstat (limited to 'drivers/net/phy/smsc.c')
| -rw-r--r-- | drivers/net/phy/smsc.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c index 659a3ab10d82..0eba69ad5745 100644 --- a/drivers/net/phy/smsc.c +++ b/drivers/net/phy/smsc.c @@ -34,6 +34,8 @@ #define SPECIAL_CTRL_STS_AMDIX_STATE_ 0x2000 #define EDPD_MAX_WAIT_DFLT_MS 640 +/* interval between phylib state machine runs in ms */ +#define PHY_STATE_MACH_MS 1000 struct smsc_hw_stat { const char *string; @@ -295,6 +297,79 @@ static void smsc_get_stats(struct phy_device *phydev, data[i] = smsc_get_stat(phydev, i); } +static int smsc_phy_get_edpd(struct phy_device *phydev, u16 *edpd) +{ + struct smsc_phy_priv *priv = phydev->priv; + + if (!priv) + return -EOPNOTSUPP; + + if (!priv->edpd_enable) + *edpd = ETHTOOL_PHY_EDPD_DISABLE; + else if (!priv->edpd_max_wait_ms) + *edpd = ETHTOOL_PHY_EDPD_NO_TX; + else + *edpd = PHY_STATE_MACH_MS + priv->edpd_max_wait_ms; + + return 0; +} + +static int smsc_phy_set_edpd(struct phy_device *phydev, u16 edpd) +{ + struct smsc_phy_priv *priv = phydev->priv; + + if (!priv) + return -EOPNOTSUPP; + + switch (edpd) { + case ETHTOOL_PHY_EDPD_DISABLE: + priv->edpd_enable = false; + break; + case ETHTOOL_PHY_EDPD_NO_TX: + priv->edpd_enable = true; + priv->edpd_max_wait_ms = 0; + break; + case ETHTOOL_PHY_EDPD_DFLT_TX_MSECS: + edpd = PHY_STATE_MACH_MS + EDPD_MAX_WAIT_DFLT_MS; + fallthrough; + default: + if (phydev->irq != PHY_POLL) + return -EOPNOTSUPP; + if (edpd < PHY_STATE_MACH_MS || edpd > PHY_STATE_MACH_MS + 1000) + return -EINVAL; + priv->edpd_enable = true; + priv->edpd_max_wait_ms = edpd - PHY_STATE_MACH_MS; + } + + priv->edpd_mode_set_by_user = true; + + return smsc_phy_config_edpd(phydev); +} + +int smsc_phy_get_tunable(struct phy_device *phydev, + struct ethtool_tunable *tuna, void *data) +{ + switch (tuna->id) { + case ETHTOOL_PHY_EDPD: + return smsc_phy_get_edpd(phydev, data); + default: + return -EOPNOTSUPP; + } +} +EXPORT_SYMBOL_GPL(smsc_phy_get_tunable); + +int smsc_phy_set_tunable(struct phy_device *phydev, + struct ethtool_tunable *tuna, const void *data) +{ + switch (tuna->id) { + case ETHTOOL_PHY_EDPD: + return smsc_phy_set_edpd(phydev, *(u16 *)data); + default: + return -EOPNOTSUPP; + } +} +EXPORT_SYMBOL_GPL(smsc_phy_set_tunable); + int smsc_phy_probe(struct phy_device *phydev) { struct device *dev = &phydev->mdio.dev; |