forked from luck/tmp_suning_uos_patched
phy layer: add kernel-doc + DocBook
Convert function documentation in drivers/net/phy/ to kernel-doc and add it to DocBook. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Randy Dunlap
Jeff Garzik
parent
56e1393f82
commit
b3df0da886
|
|
@ -236,6 +236,12 @@ X!Ilib/string.c
|
|||
!Enet/core/dev.c
|
||||
!Enet/ethernet/eth.c
|
||||
!Iinclude/linux/etherdevice.h
|
||||
!Edrivers/net/phy/phy.c
|
||||
!Idrivers/net/phy/phy.c
|
||||
!Edrivers/net/phy/phy_device.c
|
||||
!Idrivers/net/phy/phy_device.c
|
||||
!Edrivers/net/phy/mdio_bus.c
|
||||
!Idrivers/net/phy/mdio_bus.c
|
||||
<!-- FIXME: Removed for now since no structured comments in source
|
||||
X!Enet/core/wireless.c
|
||||
-->
|
||||
|
|
|
|||
|
|
@ -35,10 +35,14 @@
|
|||
#include <asm/irq.h>
|
||||
#include <asm/uaccess.h>
|
||||
|
||||
/* mdiobus_register
|
||||
/**
|
||||
* mdiobus_register - bring up all the PHYs on a given bus and attach them to bus
|
||||
* @bus: target mii_bus
|
||||
*
|
||||
* description: Called by a bus driver to bring up all the PHYs
|
||||
* on a given bus, and attach them to the bus
|
||||
* Description: Called by a bus driver to bring up all the PHYs
|
||||
* on a given bus, and attach them to the bus.
|
||||
*
|
||||
* Returns 0 on success or < 0 on error.
|
||||
*/
|
||||
int mdiobus_register(struct mii_bus *bus)
|
||||
{
|
||||
|
|
@ -114,10 +118,13 @@ void mdiobus_unregister(struct mii_bus *bus)
|
|||
}
|
||||
EXPORT_SYMBOL(mdiobus_unregister);
|
||||
|
||||
/* mdio_bus_match
|
||||
/**
|
||||
* mdio_bus_match - determine if given PHY driver supports the given PHY device
|
||||
* @dev: target PHY device
|
||||
* @drv: given PHY driver
|
||||
*
|
||||
* description: Given a PHY device, and a PHY driver, return 1 if
|
||||
* the driver supports the device. Otherwise, return 0
|
||||
* Description: Given a PHY device, and a PHY driver, return 1 if
|
||||
* the driver supports the device. Otherwise, return 0.
|
||||
*/
|
||||
static int mdio_bus_match(struct device *dev, struct device_driver *drv)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -39,7 +39,9 @@
|
|||
#include <asm/irq.h>
|
||||
#include <asm/uaccess.h>
|
||||
|
||||
/* Convenience function to print out the current phy status
|
||||
/**
|
||||
* phy_print_status - Convenience function to print out the current phy status
|
||||
* @phydev: the phy_device struct
|
||||
*/
|
||||
void phy_print_status(struct phy_device *phydev)
|
||||
{
|
||||
|
|
@ -55,10 +57,15 @@ void phy_print_status(struct phy_device *phydev)
|
|||
EXPORT_SYMBOL(phy_print_status);
|
||||
|
||||
|
||||
/* Convenience functions for reading/writing a given PHY
|
||||
* register. They MUST NOT be called from interrupt context,
|
||||
/**
|
||||
* phy_read - Convenience function for reading a given PHY register
|
||||
* @phydev: the phy_device struct
|
||||
* @regnum: register number to read
|
||||
*
|
||||
* NOTE: MUST NOT be called from interrupt context,
|
||||
* because the bus read/write functions may wait for an interrupt
|
||||
* to conclude the operation. */
|
||||
* to conclude the operation.
|
||||
*/
|
||||
int phy_read(struct phy_device *phydev, u16 regnum)
|
||||
{
|
||||
int retval;
|
||||
|
|
@ -72,6 +79,16 @@ int phy_read(struct phy_device *phydev, u16 regnum)
|
|||
}
|
||||
EXPORT_SYMBOL(phy_read);
|
||||
|
||||
/**
|
||||
* phy_write - Convenience function for writing a given PHY register
|
||||
* @phydev: the phy_device struct
|
||||
* @regnum: register number to write
|
||||
* @val: value to write to @regnum
|
||||
*
|
||||
* NOTE: MUST NOT be called from interrupt context,
|
||||
* because the bus read/write functions may wait for an interrupt
|
||||
* to conclude the operation.
|
||||
*/
|
||||
int phy_write(struct phy_device *phydev, u16 regnum, u16 val)
|
||||
{
|
||||
int err;
|
||||
|
|
@ -85,7 +102,15 @@ int phy_write(struct phy_device *phydev, u16 regnum, u16 val)
|
|||
}
|
||||
EXPORT_SYMBOL(phy_write);
|
||||
|
||||
|
||||
/**
|
||||
* phy_clear_interrupt - Ack the phy device's interrupt
|
||||
* @phydev: the phy_device struct
|
||||
*
|
||||
* If the @phydev driver has an ack_interrupt function, call it to
|
||||
* ack and clear the phy device's interrupt.
|
||||
*
|
||||
* Returns 0 on success on < 0 on error.
|
||||
*/
|
||||
int phy_clear_interrupt(struct phy_device *phydev)
|
||||
{
|
||||
int err = 0;
|
||||
|
|
@ -96,7 +121,13 @@ int phy_clear_interrupt(struct phy_device *phydev)
|
|||
return err;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* phy_config_interrupt - configure the PHY device for the requested interrupts
|
||||
* @phydev: the phy_device struct
|
||||
* @interrupts: interrupt flags to configure for this @phydev
|
||||
*
|
||||
* Returns 0 on success on < 0 on error.
|
||||
*/
|
||||
int phy_config_interrupt(struct phy_device *phydev, u32 interrupts)
|
||||
{
|
||||
int err = 0;
|
||||
|
|
@ -109,9 +140,11 @@ int phy_config_interrupt(struct phy_device *phydev, u32 interrupts)
|
|||
}
|
||||
|
||||
|
||||
/* phy_aneg_done
|
||||
/**
|
||||
* phy_aneg_done - return auto-negotiation status
|
||||
* @phydev: target phy_device struct
|
||||
*
|
||||
* description: Reads the status register and returns 0 either if
|
||||
* Description: Reads the status register and returns 0 either if
|
||||
* auto-negotiation is incomplete, or if there was an error.
|
||||
* Returns BMSR_ANEGCOMPLETE if auto-negotiation is done.
|
||||
*/
|
||||
|
|
@ -173,9 +206,12 @@ static const struct phy_setting settings[] = {
|
|||
|
||||
#define MAX_NUM_SETTINGS (sizeof(settings)/sizeof(struct phy_setting))
|
||||
|
||||
/* phy_find_setting
|
||||
/**
|
||||
* phy_find_setting - find a PHY settings array entry that matches speed & duplex
|
||||
* @speed: speed to match
|
||||
* @duplex: duplex to match
|
||||
*
|
||||
* description: Searches the settings array for the setting which
|
||||
* 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 the last setting if
|
||||
* none of the others match.
|
||||
|
|
@ -192,11 +228,12 @@ static inline int phy_find_setting(int speed, int duplex)
|
|||
return idx < MAX_NUM_SETTINGS ? idx : MAX_NUM_SETTINGS - 1;
|
||||
}
|
||||
|
||||
/* phy_find_valid
|
||||
* idx: The first index in settings[] to search
|
||||
* features: A mask of the valid settings
|
||||
/**
|
||||
* phy_find_valid - find a PHY setting that matches the requested features mask
|
||||
* @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
|
||||
* Description: Returns the index of the first valid setting less
|
||||
* than or equal to the one pointed to by idx, as determined by
|
||||
* the mask in features. Returns the index of the last setting
|
||||
* if nothing else matches.
|
||||
|
|
@ -209,11 +246,13 @@ static inline int phy_find_valid(int idx, u32 features)
|
|||
return idx < MAX_NUM_SETTINGS ? idx : MAX_NUM_SETTINGS - 1;
|
||||
}
|
||||
|
||||
/* phy_sanitize_settings
|
||||
/**
|
||||
* phy_sanitize_settings - make sure the PHY is set to supported speed and duplex
|
||||
* @phydev: the target phy_device struct
|
||||
*
|
||||
* description: Make sure the PHY is set to supported speeds and
|
||||
* 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
|
||||
* 1000/HALF, 100/FULL, 100/HALF, 10/FULL, 10/HALF.
|
||||
*/
|
||||
void phy_sanitize_settings(struct phy_device *phydev)
|
||||
{
|
||||
|
|
@ -232,16 +271,17 @@ void phy_sanitize_settings(struct phy_device *phydev)
|
|||
}
|
||||
EXPORT_SYMBOL(phy_sanitize_settings);
|
||||
|
||||
/* phy_ethtool_sset:
|
||||
* A generic ethtool sset function. Handles all the details
|
||||
/**
|
||||
* phy_ethtool_sset - generic ethtool sset function, handles all the details
|
||||
* @phydev: target phy_device struct
|
||||
* @cmd: ethtool_cmd
|
||||
*
|
||||
* 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 are sane, and
|
||||
* choose the next best ones from the ones selected, so we don't
|
||||
* care if ethtool tries to give us bad values
|
||||
*
|
||||
* care if ethtool tries to give us bad values.
|
||||
*/
|
||||
int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd)
|
||||
{
|
||||
|
|
@ -304,9 +344,15 @@ int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd)
|
|||
}
|
||||
EXPORT_SYMBOL(phy_ethtool_gset);
|
||||
|
||||
/* Note that this function is currently incompatible with the
|
||||
/**
|
||||
* phy_mii_ioctl - generic PHY MII ioctl interface
|
||||
* @phydev: the phy_device struct
|
||||
* @mii_data: MII ioctl data
|
||||
* @cmd: ioctl cmd to execute
|
||||
*
|
||||
* Note that this function is currently incompatible with the
|
||||
* PHYCONTROL layer. It changes registers without regard to
|
||||
* current state. Use at own risk
|
||||
* current state. Use at own risk.
|
||||
*/
|
||||
int phy_mii_ioctl(struct phy_device *phydev,
|
||||
struct mii_ioctl_data *mii_data, int cmd)
|
||||
|
|
@ -358,13 +404,14 @@ int phy_mii_ioctl(struct phy_device *phydev,
|
|||
return 0;
|
||||
}
|
||||
|
||||
/* phy_start_aneg
|
||||
/**
|
||||
* phy_start_aneg - start auto-negotiation for this PHY device
|
||||
* @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.
|
||||
* 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.
|
||||
*/
|
||||
int phy_start_aneg(struct phy_device *phydev)
|
||||
{
|
||||
|
|
@ -400,15 +447,19 @@ EXPORT_SYMBOL(phy_start_aneg);
|
|||
static void phy_change(struct work_struct *work);
|
||||
static void phy_timer(unsigned long data);
|
||||
|
||||
/* phy_start_machine:
|
||||
/**
|
||||
* phy_start_machine - start PHY state machine tracking
|
||||
* @phydev: the phy_device struct
|
||||
* @handler: callback function for state change notifications
|
||||
*
|
||||
* description: The PHY infrastructure can run a state machine
|
||||
* Description: The PHY infrastructure can run a state machine
|
||||
* which tracks whether the PHY is starting up, negotiating,
|
||||
* etc. This function starts the timer which tracks the state
|
||||
* of the PHY. If you want to be notified when the state
|
||||
* changes, pass in the callback, otherwise, pass NULL. If you
|
||||
* of the PHY. If you want to be notified when the state changes,
|
||||
* pass in the callback @handler, otherwise, pass NULL. If you
|
||||
* want to maintain your own state machine, do not call this
|
||||
* function. */
|
||||
* function.
|
||||
*/
|
||||
void phy_start_machine(struct phy_device *phydev,
|
||||
void (*handler)(struct net_device *))
|
||||
{
|
||||
|
|
@ -420,9 +471,11 @@ void phy_start_machine(struct phy_device *phydev,
|
|||
mod_timer(&phydev->phy_timer, jiffies + HZ);
|
||||
}
|
||||
|
||||
/* phy_stop_machine
|
||||
/**
|
||||
* phy_stop_machine - stop the PHY state machine tracking
|
||||
* @phydev: target phy_device struct
|
||||
*
|
||||
* description: Stops the state machine timer, sets the state to UP
|
||||
* Description: Stops the state machine timer, sets the state to UP
|
||||
* (unless it wasn't up yet). This function must be called BEFORE
|
||||
* phy_detach.
|
||||
*/
|
||||
|
|
@ -438,12 +491,14 @@ void phy_stop_machine(struct phy_device *phydev)
|
|||
phydev->adjust_state = NULL;
|
||||
}
|
||||
|
||||
/* phy_force_reduction
|
||||
/**
|
||||
* phy_force_reduction - reduce PHY speed/duplex settings by one step
|
||||
* @phydev: target phy_device struct
|
||||
*
|
||||
* description: Reduces the speed/duplex settings by
|
||||
* one notch. The order is so:
|
||||
* 1000/FULL, 1000/HALF, 100/FULL, 100/HALF,
|
||||
* 10/FULL, 10/HALF. The function bottoms out at 10/HALF.
|
||||
* Description: Reduces the speed/duplex settings by one notch,
|
||||
* in this order--
|
||||
* 1000/FULL, 1000/HALF, 100/FULL, 100/HALF, 10/FULL, 10/HALF.
|
||||
* The function bottoms out at 10/HALF.
|
||||
*/
|
||||
static void phy_force_reduction(struct phy_device *phydev)
|
||||
{
|
||||
|
|
@ -464,7 +519,9 @@ static void phy_force_reduction(struct phy_device *phydev)
|
|||
}
|
||||
|
||||
|
||||
/* phy_error:
|
||||
/**
|
||||
* phy_error - enter HALTED state for this PHY device
|
||||
* @phydev: target phy_device struct
|
||||
*
|
||||
* Moves the PHY to the HALTED state in response to a read
|
||||
* or write error, and tells the controller the link is down.
|
||||
|
|
@ -478,9 +535,12 @@ void phy_error(struct phy_device *phydev)
|
|||
spin_unlock(&phydev->lock);
|
||||
}
|
||||
|
||||
/* phy_interrupt
|
||||
/**
|
||||
* phy_interrupt - PHY interrupt handler
|
||||
* @irq: interrupt line
|
||||
* @phy_dat: phy_device pointer
|
||||
*
|
||||
* description: When a PHY interrupt occurs, the handler disables
|
||||
* Description: When a PHY interrupt occurs, the handler disables
|
||||
* interrupts, and schedules a work task to clear the interrupt.
|
||||
*/
|
||||
static irqreturn_t phy_interrupt(int irq, void *phy_dat)
|
||||
|
|
@ -501,7 +561,10 @@ static irqreturn_t phy_interrupt(int irq, void *phy_dat)
|
|||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
/* Enable the interrupts from the PHY side */
|
||||
/**
|
||||
* phy_enable_interrupts - Enable the interrupts from the PHY side
|
||||
* @phydev: target phy_device struct
|
||||
*/
|
||||
int phy_enable_interrupts(struct phy_device *phydev)
|
||||
{
|
||||
int err;
|
||||
|
|
@ -517,7 +580,10 @@ int phy_enable_interrupts(struct phy_device *phydev)
|
|||
}
|
||||
EXPORT_SYMBOL(phy_enable_interrupts);
|
||||
|
||||
/* Disable the PHY interrupts from the PHY side */
|
||||
/**
|
||||
* phy_disable_interrupts - Disable the PHY interrupts from the PHY side
|
||||
* @phydev: target phy_device struct
|
||||
*/
|
||||
int phy_disable_interrupts(struct phy_device *phydev)
|
||||
{
|
||||
int err;
|
||||
|
|
@ -543,13 +609,15 @@ int phy_disable_interrupts(struct phy_device *phydev)
|
|||
}
|
||||
EXPORT_SYMBOL(phy_disable_interrupts);
|
||||
|
||||
/* phy_start_interrupts
|
||||
/**
|
||||
* phy_start_interrupts - request and enable interrupts for a PHY device
|
||||
* @phydev: target phy_device struct
|
||||
*
|
||||
* description: Request the interrupt for the given PHY. If
|
||||
* this fails, then we set irq to PHY_POLL.
|
||||
* 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.
|
||||
* Returns 0 on success.
|
||||
* This should only be called with a valid IRQ number.
|
||||
* Returns 0 on success or < 0 on error.
|
||||
*/
|
||||
int phy_start_interrupts(struct phy_device *phydev)
|
||||
{
|
||||
|
|
@ -574,6 +642,10 @@ int phy_start_interrupts(struct phy_device *phydev)
|
|||
}
|
||||
EXPORT_SYMBOL(phy_start_interrupts);
|
||||
|
||||
/**
|
||||
* phy_stop_interrupts - disable interrupts from a PHY device
|
||||
* @phydev: target phy_device struct
|
||||
*/
|
||||
int phy_stop_interrupts(struct phy_device *phydev)
|
||||
{
|
||||
int err;
|
||||
|
|
@ -596,7 +668,10 @@ int phy_stop_interrupts(struct phy_device *phydev)
|
|||
EXPORT_SYMBOL(phy_stop_interrupts);
|
||||
|
||||
|
||||
/* Scheduled by the phy_interrupt/timer to handle PHY changes */
|
||||
/**
|
||||
* phy_change - Scheduled by the phy_interrupt/timer to handle PHY changes
|
||||
* @work: work_struct that describes the work to be done
|
||||
*/
|
||||
static void phy_change(struct work_struct *work)
|
||||
{
|
||||
int err;
|
||||
|
|
@ -630,7 +705,10 @@ static void phy_change(struct work_struct *work)
|
|||
phy_error(phydev);
|
||||
}
|
||||
|
||||
/* Bring down the PHY link, and stop checking the status. */
|
||||
/**
|
||||
* phy_stop - Bring down the PHY link, and stop checking the status
|
||||
* @phydev: target phy_device struct
|
||||
*/
|
||||
void phy_stop(struct phy_device *phydev)
|
||||
{
|
||||
spin_lock(&phydev->lock);
|
||||
|
|
@ -659,9 +737,11 @@ void phy_stop(struct phy_device *phydev)
|
|||
}
|
||||
|
||||
|
||||
/* phy_start
|
||||
/**
|
||||
* phy_start - start or restart a PHY device
|
||||
* @phydev: target phy_device struct
|
||||
*
|
||||
* description: Indicates the attached device's readiness to
|
||||
* 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
|
||||
|
|
|
|||
|
|
@ -74,11 +74,13 @@ struct phy_device* phy_device_create(struct mii_bus *bus, int addr, int phy_id)
|
|||
}
|
||||
EXPORT_SYMBOL(phy_device_create);
|
||||
|
||||
/* get_phy_device
|
||||
/**
|
||||
* get_phy_device - reads the specified PHY device and returns its @phy_device struct
|
||||
* @bus: the target MII bus
|
||||
* @addr: PHY address on the MII bus
|
||||
*
|
||||
* description: Reads the ID registers of the PHY at addr on the
|
||||
* bus, then allocates and returns the phy_device to
|
||||
* represent it.
|
||||
* Description: Reads the ID registers of the PHY at @addr on the
|
||||
* @bus, then allocates and returns the phy_device to represent it.
|
||||
*/
|
||||
struct phy_device * get_phy_device(struct mii_bus *bus, int addr)
|
||||
{
|
||||
|
|
@ -112,23 +114,33 @@ struct phy_device * get_phy_device(struct mii_bus *bus, int addr)
|
|||
return dev;
|
||||
}
|
||||
|
||||
/* phy_prepare_link:
|
||||
/**
|
||||
* phy_prepare_link - prepares the PHY layer to monitor link status
|
||||
* @phydev: target phy_device struct
|
||||
* @handler: callback function for link status change notifications
|
||||
*
|
||||
* description: Tells the PHY infrastructure to handle the
|
||||
* Description: Tells the PHY infrastructure to handle the
|
||||
* gory details on monitoring link status (whether through
|
||||
* polling or an interrupt), and to call back to the
|
||||
* connected device driver when the link status changes.
|
||||
* If you want to monitor your own link state, don't call
|
||||
* this function */
|
||||
* this function.
|
||||
*/
|
||||
void phy_prepare_link(struct phy_device *phydev,
|
||||
void (*handler)(struct net_device *))
|
||||
{
|
||||
phydev->adjust_link = handler;
|
||||
}
|
||||
|
||||
/* phy_connect:
|
||||
/**
|
||||
* phy_connect - connect an ethernet device to a PHY device
|
||||
* @dev: the network device to connect
|
||||
* @phy_id: the PHY device to connect
|
||||
* @handler: callback function for state change notifications
|
||||
* @flags: PHY device's dev_flags
|
||||
* @interface: PHY device's interface
|
||||
*
|
||||
* description: Convenience function for connecting ethernet
|
||||
* Description: Convenience function for connecting ethernet
|
||||
* devices to PHY devices. The default behavior is for
|
||||
* the PHY infrastructure to handle everything, and only notify
|
||||
* the connected driver when the link status changes. If you
|
||||
|
|
@ -158,6 +170,10 @@ struct phy_device * phy_connect(struct net_device *dev, const char *phy_id,
|
|||
}
|
||||
EXPORT_SYMBOL(phy_connect);
|
||||
|
||||
/**
|
||||
* phy_disconnect - disable interrupts, stop state machine, and detach a PHY device
|
||||
* @phydev: target phy_device struct
|
||||
*/
|
||||
void phy_disconnect(struct phy_device *phydev)
|
||||
{
|
||||
if (phydev->irq > 0)
|
||||
|
|
@ -171,21 +187,25 @@ void phy_disconnect(struct phy_device *phydev)
|
|||
}
|
||||
EXPORT_SYMBOL(phy_disconnect);
|
||||
|
||||
/* phy_attach:
|
||||
*
|
||||
* description: Called by drivers to attach to a particular PHY
|
||||
* device. The phy_device is found, and properly hooked up
|
||||
* to the phy_driver. If no driver is attached, then the
|
||||
* genphy_driver is used. The phy_device is given a ptr to
|
||||
* the attaching device, and given a callback for link status
|
||||
* change. The phy_device is returned to the attaching
|
||||
* driver.
|
||||
*/
|
||||
static int phy_compare_id(struct device *dev, void *data)
|
||||
{
|
||||
return strcmp((char *)data, dev->bus_id) ? 0 : 1;
|
||||
}
|
||||
|
||||
/**
|
||||
* phy_attach - attach a network device to a particular PHY device
|
||||
* @dev: network device to attach
|
||||
* @phy_id: PHY device to attach
|
||||
* @flags: PHY device's dev_flags
|
||||
* @interface: PHY device's interface
|
||||
*
|
||||
* Description: Called by drivers to attach to a particular PHY
|
||||
* device. The phy_device is found, and properly hooked up
|
||||
* to the phy_driver. If no driver is attached, then the
|
||||
* genphy_driver is used. The phy_device is given a ptr to
|
||||
* the attaching device, and given a callback for link status
|
||||
* change. The phy_device is returned to the attaching driver.
|
||||
*/
|
||||
struct phy_device *phy_attach(struct net_device *dev,
|
||||
const char *phy_id, u32 flags, phy_interface_t interface)
|
||||
{
|
||||
|
|
@ -246,6 +266,10 @@ struct phy_device *phy_attach(struct net_device *dev,
|
|||
}
|
||||
EXPORT_SYMBOL(phy_attach);
|
||||
|
||||
/**
|
||||
* phy_detach - detach a PHY device from its network device
|
||||
* @phydev: target phy_device struct
|
||||
*/
|
||||
void phy_detach(struct phy_device *phydev)
|
||||
{
|
||||
phydev->attached_dev = NULL;
|
||||
|
|
@ -262,11 +286,13 @@ EXPORT_SYMBOL(phy_detach);
|
|||
|
||||
/* Generic PHY support and helper functions */
|
||||
|
||||
/* genphy_config_advert
|
||||
/**
|
||||
* genphy_config_advert - sanitize and advertise auto-negotation parameters
|
||||
* @phydev: target phy_device struct
|
||||
*
|
||||
* description: Writes MII_ADVERTISE with the appropriate values,
|
||||
* Description: Writes MII_ADVERTISE with the appropriate values,
|
||||
* after sanitizing the values to make sure we only advertise
|
||||
* what is supported
|
||||
* what is supported.
|
||||
*/
|
||||
int genphy_config_advert(struct phy_device *phydev)
|
||||
{
|
||||
|
|
@ -328,11 +354,14 @@ int genphy_config_advert(struct phy_device *phydev)
|
|||
}
|
||||
EXPORT_SYMBOL(genphy_config_advert);
|
||||
|
||||
/* genphy_setup_forced
|
||||
/**
|
||||
* genphy_setup_forced - configures/forces speed/duplex from @phydev
|
||||
* @phydev: target phy_device struct
|
||||
*
|
||||
* description: Configures MII_BMCR to force speed/duplex
|
||||
* Description: Configures MII_BMCR to force speed/duplex
|
||||
* to the values in phydev. Assumes that the values are valid.
|
||||
* Please see phy_sanitize_settings() */
|
||||
* Please see phy_sanitize_settings().
|
||||
*/
|
||||
int genphy_setup_forced(struct phy_device *phydev)
|
||||
{
|
||||
int ctl = BMCR_RESET;
|
||||
|
|
@ -361,7 +390,10 @@ int genphy_setup_forced(struct phy_device *phydev)
|
|||
}
|
||||
|
||||
|
||||
/* Enable and Restart Autonegotiation */
|
||||
/**
|
||||
* genphy_restart_aneg - Enable and Restart Autonegotiation
|
||||
* @phydev: target phy_device struct
|
||||
*/
|
||||
int genphy_restart_aneg(struct phy_device *phydev)
|
||||
{
|
||||
int ctl;
|
||||
|
|
@ -382,11 +414,13 @@ int genphy_restart_aneg(struct phy_device *phydev)
|
|||
}
|
||||
|
||||
|
||||
/* genphy_config_aneg
|
||||
/**
|
||||
* genphy_config_aneg - restart auto-negotiation or write BMCR
|
||||
* @phydev: target phy_device struct
|
||||
*
|
||||
* description: If auto-negotiation is enabled, we configure the
|
||||
* Description: If auto-negotiation is enabled, we configure the
|
||||
* advertising, and then restart auto-negotiation. If it is not
|
||||
* enabled, then we write the BMCR
|
||||
* enabled, then we write the BMCR.
|
||||
*/
|
||||
int genphy_config_aneg(struct phy_device *phydev)
|
||||
{
|
||||
|
|
@ -406,11 +440,13 @@ int genphy_config_aneg(struct phy_device *phydev)
|
|||
}
|
||||
EXPORT_SYMBOL(genphy_config_aneg);
|
||||
|
||||
/* genphy_update_link
|
||||
/**
|
||||
* genphy_update_link - update link status in @phydev
|
||||
* @phydev: target phy_device struct
|
||||
*
|
||||
* description: Update the value in phydev->link to reflect the
|
||||
* Description: Update the value in phydev->link to reflect the
|
||||
* current link value. In order to do this, we need to read
|
||||
* the status register twice, keeping the second value
|
||||
* the status register twice, keeping the second value.
|
||||
*/
|
||||
int genphy_update_link(struct phy_device *phydev)
|
||||
{
|
||||
|
|
@ -437,9 +473,11 @@ int genphy_update_link(struct phy_device *phydev)
|
|||
}
|
||||
EXPORT_SYMBOL(genphy_update_link);
|
||||
|
||||
/* genphy_read_status
|
||||
/**
|
||||
* genphy_read_status - check the link status and update current link state
|
||||
* @phydev: target phy_device struct
|
||||
*
|
||||
* description: Check the link, then figure out the current state
|
||||
* Description: Check the link, then figure out the current state
|
||||
* by comparing what we advertise with what the link partner
|
||||
* advertises. Start by checking the gigabit possibilities,
|
||||
* then move on to 10/100.
|
||||
|
|
@ -579,9 +617,11 @@ static int genphy_config_init(struct phy_device *phydev)
|
|||
}
|
||||
|
||||
|
||||
/* phy_probe
|
||||
/**
|
||||
* phy_probe - probe and init a PHY device
|
||||
* @dev: device to probe and init
|
||||
*
|
||||
* description: Take care of setting up the phy_device structure,
|
||||
* 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).
|
||||
*/
|
||||
|
|
@ -643,6 +683,10 @@ static int phy_remove(struct device *dev)
|
|||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* phy_driver_register - register a phy_driver with the PHY layer
|
||||
* @new_driver: new phy_driver to register
|
||||
*/
|
||||
int phy_driver_register(struct phy_driver *new_driver)
|
||||
{
|
||||
int retval;
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user