mdio_bus.c File Reference

#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/unistd.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/of_device.h>
#include <linux/of_mdio.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/mii.h>
#include <linux/ethtool.h>
#include <linux/phy.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>

Go to the source code of this file.

Macros
#define	pr_fmt(fmt)   KBUILD_MODNAME ": " fmt
#define	MDIO_BUS_PM_OPS   NULL

Functions
struct mii_bus *	mdiobus_alloc_size (size_t size)
	EXPORT_SYMBOL (mdiobus_alloc_size)
int	mdiobus_register (struct mii_bus *bus)
	EXPORT_SYMBOL (mdiobus_register)
void	mdiobus_unregister (struct mii_bus *bus)
	EXPORT_SYMBOL (mdiobus_unregister)
void	mdiobus_free (struct mii_bus *bus)
	EXPORT_SYMBOL (mdiobus_free)
struct phy_device *	mdiobus_scan (struct mii_bus *bus, int addr)
	EXPORT_SYMBOL (mdiobus_scan)
int	mdiobus_read (struct mii_bus *bus, int addr, u32 regnum)
	EXPORT_SYMBOL (mdiobus_read)
int	mdiobus_write (struct mii_bus *bus, int addr, u32 regnum, u16 val)
	EXPORT_SYMBOL (mdiobus_write)
	EXPORT_SYMBOL (mdio_bus_type)
int __init	mdio_bus_init (void)
void	mdio_bus_exit (void)

Variables
struct bus_type	mdio_bus_type

Macro Definition Documentation

#define MDIO_BUS_PM_OPS   NULL

Definition at line 430 of file mdio_bus.c.

#define pr_fmt

(

fmt

)

KBUILD_MODNAME ": " fmt

Definition at line 17 of file mdio_bus.c.

Function Documentation

EXPORT_SYMBOL

(

mdiobus_alloc_size

)

EXPORT_SYMBOL

(

mdiobus_register

)

EXPORT_SYMBOL

(

mdiobus_unregister

)

EXPORT_SYMBOL

(

mdiobus_free

)

EXPORT_SYMBOL

(

mdiobus_scan

)

EXPORT_SYMBOL

(

mdiobus_read

)

EXPORT_SYMBOL

(

mdiobus_write

)

EXPORT_SYMBOL

(

mdio_bus_type

)

void mdio_bus_exit

(

void

)

Definition at line 455 of file mdio_bus.c.

int __init mdio_bus_init

(

void

)

Definition at line 441 of file mdio_bus.c.

struct mii_bus* mdiobus_alloc_size ( size_t  size )

read

mdiobus_alloc_size - allocate a mii_bus structure : extra amount of memory to allocate for private storage. If non-zero, then bus->priv is points to that memory.

Description: called by a bus driver to allocate an mii_bus structure to fill in.

Definition at line 52 of file mdio_bus.c.

void mdiobus_free

(

struct mii_bus *

bus

)

mdiobus_free - free a struct mii_bus : mii_bus to free

This function releases the reference to the underlying device object in the mii_bus. If this is the last reference, the mii_bus will be freed.

Definition at line 215 of file mdio_bus.c.

int mdiobus_read	(	struct mii_bus *	bus,
		int	addr,
		u32	regnum
	)

mdiobus_read - Convenience function for reading a given MII mgmt register : the mii_bus struct : the phy address : 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.

Definition at line 261 of file mdio_bus.c.

int mdiobus_register

(

struct mii_bus *

bus

)

mdiobus_register - bring up all the PHYs on a given bus and attach them to 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.

Returns 0 on success or < 0 on error.

Definition at line 137 of file mdio_bus.c.

struct phy_device* mdiobus_scan ( struct mii_bus *  bus, int  addr  )

read

Definition at line 232 of file mdio_bus.c.

void mdiobus_unregister

(

struct mii_bus *

bus

)

Definition at line 191 of file mdio_bus.c.

int mdiobus_write	(	struct mii_bus *	bus,
		int	addr,
		u32	regnum,
		u16	val
	)

mdiobus_write - Convenience function for writing a given MII mgmt register : the mii_bus struct : the phy address : register number to write : value to write to

NOTE: MUST NOT be called from interrupt context, because the bus read/write functions may wait for an interrupt to conclude the operation.

Definition at line 286 of file mdio_bus.c.

Variable Documentation

struct bus_type mdio_bus_type

Initial value:

= {
    .name       = "mdio_bus",
    .match      = mdio_bus_match,
    .pm     = MDIO_BUS_PM_OPS,
}

Definition at line 434 of file mdio_bus.c.