phy_start_interrupts – request and enable interrupts for a PHY device Synopsis int phy_start_interrupts(struct phy_device *phydev); Arguments phydev target phy_device struct Description Request the interrupt for the given PHY. If this fails, then we set irq to PHY_POLL. Otherwise, we enable the interrupts in the PHY. This should only be called with a valid IRQ number….
phy_start_aneg – start auto-negotiation for this PHY device Synopsis int phy_start_aneg(struct phy_device *phydev); Arguments phydev the phy_device struct Description Sanitizes the settings (if we’re not autonegotiating them), and then calls the driver’s config_aneg function. If the PHYCONTROL Layer is operating, we change the state to reflect the beginning of Auto-negotiation or forcing. Copyright
phy_start – start or restart a PHY device Synopsis void phy_start(struct phy_device *phydev); Arguments phydev target phy_device struct Description Indicates the attached device’s readiness to handle PHY-related work. Used during startup to start the PHY, and after a call to phy_stop to resume operation. Also used to indicate the MDIO bus has cleared an error…
phy_sanitize_settings – make sure the PHY is set to supported speed and duplex Synopsis void phy_sanitize_settings(struct phy_device *phydev); Arguments phydev the target phy_device struct Description Make sure the PHY is set to supported speeds and duplexes. Drop down by one in this order: 1000/FULL, 1000/HALF, 100/FULL, 100/HALF, 10/FULL, 10/HALF. Copyright
phy_register_fixup – creates a new phy_fixup and adds it to the list Synopsis int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask, int (*run)(struct phy_device *)); Arguments bus_id A string which matches phydev->mdio.dev.bus_id (or PHY_ANY_ID) phy_uid Used to match against phydev->phy_id (the UID of the PHY) It can also be PHY_ANY_UID phy_uid_mask Applied to phydev->phy_id and…
phy_read_mmd_indirect – reads data from the MMD registers Synopsis int phy_read_mmd_indirect(struct phy_device *phydev, int prtad, int devad); Arguments phydev The PHY device bus prtad MMD Address devad MMD DEVAD Description it reads data from the MMD registers (clause 22 to access to clause 45) of the specified phy address. To read these register we have:…
phy_probe – probe and init a PHY device Synopsis int phy_probe(struct device *dev); Arguments dev device to probe and init Description Take care of setting up the phy_device structure, set the state to READY (the driver’s init function should set it to STARTING if needed). Copyright
phy_print_status – Convenience function to print out the current phy status Synopsis void phy_print_status(struct phy_device *phydev); Arguments phydev the phy_device struct Copyright
phy_prepare_link – prepares the PHY layer to monitor link status Synopsis void phy_prepare_link(struct phy_device *phydev, void (*handler)(struct net_device *)); Arguments phydev target phy_device struct handler callback function for link status change notifications Description Tells the PHY infrastructure to handle the gory details on monitoring link status (whether through polling or an interrupt), and to call…
phy_poll_reset – Safely wait until a PHY reset has properly completed Synopsis int phy_poll_reset(struct phy_device *phydev); Arguments phydev The PHY device to poll Description According to IEEE 802.3, Section 2, Subsection 22.2.4.1.1, as published in 2008, a PHY reset may take up to 0.5 seconds. The MII BMCR register must be polled until the BMCR_RESET…
phy_mii_ioctl – generic PHY MII ioctl interface Synopsis int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd); Arguments phydev the phy_device struct ifr struct ifreq for socket ioctl’s cmd ioctl cmd to execute Description Note that this function is currently incompatible with the PHYCONTROL layer. It changes registers without regard to current state. Use at…
phy_interrupt – PHY interrupt handler Synopsis irqreturn_t phy_interrupt(int irq, void * phy_dat); Arguments irq interrupt line phy_dat phy_device pointer Description When a PHY interrupt occurs, the handler disables interrupts, and schedules a work task to clear the interrupt. Copyright
phy_init_eee – init and check the EEE feature Synopsis int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable); Arguments phydev target phy_device struct clk_stop_enable PHY may stop the clock during LPI Description it checks if the Energy-Efficient Ethernet (EEE) is supported by looking at the MMD registers 3.20 and 7.60/61 and it programs the MMD register 3.0 setting…
phy_get_eee_err – report the EEE wake error count Synopsis int phy_get_eee_err(struct phy_device *phydev); Arguments phydev target phy_device struct Description it is to report the number of time where the PHY failed to complete its normal wake sequence. Copyright
phy_find_valid – find a PHY setting that matches the requested features mask Synopsis unsigned int phy_find_valid(unsigned int idx, u32 features); Arguments idx The first index in settings[] to search features A mask of the valid settings Description Returns the index of the first valid setting less than or equal to the one pointed to by…
phy_find_setting – find a PHY settings array entry that matches speed & duplex Synopsis unsigned int phy_find_setting(int speed, int duplex); Arguments speed speed to match duplex duplex to match Description Searches the settings array for the setting which matches the desired speed and duplex, and returns the index of that setting. Returns the index of…
phy_find_first – finds the first PHY device on the bus Synopsis struct phy_device *phy_find_first(struct mii_bus *bus); Arguments bus the target MII bus Copyright
phy_ethtool_sset – generic ethtool sset function, handles all the details Synopsis int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd); Arguments phydev target phy_device struct cmd ethtool_cmd Description A few notes about parameter checking: – We don’t set port or transceiver, so we don’t care what they were set to. – phy_start_aneg will make sure forced settings…
phy_ethtool_set_eee – set EEE supported and status Synopsis int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data); Arguments phydev target phy_device struct data ethtool_eee data Description it is to program the Advertisement EEE register. Copyright
phy_ethtool_get_eee – get EEE supported and status Synopsis int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data); Arguments phydev target phy_device struct data ethtool_eee data Description it reportes the Supported/Advertisement/LP Advertisement capabilities. Copyright