Ethernet PHY Interface

Ethernet PHY Interface . More...

Data Structures
struct	phy_link_state
	Link state. More...
struct	phy_plca_cfg
	PLCA (Physical Layer Collision Avoidance) Reconciliation Sublayer configurations. More...

Macros
#define	PHY_LINK_IS_FULL_DUPLEX(x)
	Check if phy link is full duplex.
#define	PHY_LINK_IS_SPEED_1000M(x)
	Check if phy link speed is 1 Gbit/sec.
#define	PHY_LINK_IS_SPEED_100M(x)
	Check if phy link speed is 100 Mbit/sec.

Typedefs
typedef void(*	phy_callback_t) (const struct device *dev, struct phy_link_state *state, void *user_data)
	Define the callback function signature for phy_link_callback_set() function.

Enumerations
enum	phy_link_speed {   LINK_HALF_10BASE_T = BIT(0) , LINK_FULL_10BASE_T = BIT(1) , LINK_HALF_100BASE_T = BIT(2) , LINK_FULL_100BASE_T = BIT(3) ,   LINK_HALF_1000BASE_T = BIT(4) , LINK_FULL_1000BASE_T = BIT(5) , LINK_FULL_2500BASE_T = BIT(6) , LINK_FULL_5000BASE_T = BIT(7) }
	Ethernet link speeds. More...

Functions
int	genphy_get_plca_cfg (const struct device *dev, struct phy_plca_cfg *plca_cfg)
	Write PHY PLCA configuration.
int	genphy_set_plca_cfg (const struct device *dev, struct phy_plca_cfg *plca_cfg)
	Read PHY PLCA configuration.
int	genphy_get_plca_sts (const struct device *dev, bool *plca_status)
	Read PHY PLCA status.
static int	phy_configure_link (const struct device *dev, enum phy_link_speed speeds)
	Configure PHY link.
static int	phy_get_link_state (const struct device *dev, struct phy_link_state *state)
	Get PHY link state.
static int	phy_link_callback_set (const struct device *dev, phy_callback_t callback, void *user_data)
	Set link state change callback.
static int	phy_read (const struct device *dev, uint16_t reg_addr, uint32_t *value)
	Read PHY registers.
static int	phy_write (const struct device *dev, uint16_t reg_addr, uint32_t value)
	Write PHY register.
static int	phy_read_c45 (const struct device *dev, uint8_t devad, uint16_t regad, uint16_t *data)
	Read PHY C45 register.
static int	phy_write_c45 (const struct device *dev, uint8_t devad, uint16_t regad, uint16_t data)
	Write PHY C45 register.
static int	phy_set_plca_cfg (const struct device *dev, struct phy_plca_cfg *plca_cfg)
	Write PHY PLCA configuration.
static int	phy_get_plca_cfg (const struct device *dev, struct phy_plca_cfg *plca_cfg)
	Read PHY PLCA configuration.
static int	phy_get_plca_sts (const struct device *dev, bool *plca_status)
	Read PHY PLCA status.

Detailed Description

Ethernet PHY Interface .

Since

2.7

Version

0.8.0

Macro Definition Documentation

PHY_LINK_IS_FULL_DUPLEX

#define PHY_LINK_IS_FULL_DUPLEX

(

x

)

#include <zephyr/net/phy.h>

Value:

(x & (BIT(1) | BIT(3) | BIT(5) | BIT(6) | BIT(7)))

Check if phy link is full duplex.

Parameters

x	Link capabilities

Returns

True if link is full duplex, false if not.

PHY_LINK_IS_SPEED_1000M

#define PHY_LINK_IS_SPEED_1000M

(

x

)

#include <zephyr/net/phy.h>

Value:

(x & (BIT(4) | BIT(5)))

Check if phy link speed is 1 Gbit/sec.

Parameters

x	Link capabilities

Returns

True if link is 1 Gbit/sec, false if not.

PHY_LINK_IS_SPEED_100M

#define PHY_LINK_IS_SPEED_100M

(

x

)

#include <zephyr/net/phy.h>

Value:

(x & (BIT(2) | BIT(3)))

Check if phy link speed is 100 Mbit/sec.

Parameters

x	Link capabilities

Returns

True if link is 1 Mbit/sec, false if not.

Typedef Documentation

phy_callback_t

typedef void(* phy_callback_t) (const struct device *dev, struct phy_link_state *state, void *user_data)

#include <zephyr/net/phy.h>

Define the callback function signature for phy_link_callback_set() function.

Parameters

dev	PHY device structure
state	Pointer to link_state structure.
user_data	Pointer to data specified by user

Enumeration Type Documentation

phy_link_speed

enum phy_link_speed

#include <zephyr/net/phy.h>

Ethernet link speeds.

Enumerator
LINK_HALF_10BASE_T	10Base-T Half-Duplex
LINK_FULL_10BASE_T	10Base-T Full-Duplex
LINK_HALF_100BASE_T	100Base-T Half-Duplex
LINK_FULL_100BASE_T	100Base-T Full-Duplex
LINK_HALF_1000BASE_T	1000Base-T Half-Duplex
LINK_FULL_1000BASE_T	1000Base-T Full-Duplex
LINK_FULL_2500BASE_T	2.5GBase-T Full-Duplex
LINK_FULL_5000BASE_T	5GBase-T Full-Duplex

Function Documentation

genphy_get_plca_cfg()

int genphy_get_plca_cfg	(	const struct device *	dev,
		struct phy_plca_cfg *	plca_cfg )

#include <zephyr/net/phy.h>

Write PHY PLCA configuration.

This routine provides a generic interface to configure PHY PLCA settings.

Parameters

[in]	dev	PHY device structure
[in]	plca_cfg	Pointer to plca configuration structure

Return values

0	If successful.
-EIO	If communication with PHY failed.

genphy_get_plca_sts()

int genphy_get_plca_sts	(	const struct device *	dev,
		bool *	plca_status )

#include <zephyr/net/phy.h>

Read PHY PLCA status.

This routine provides a generic interface to get PHY PLCA status.

Parameters

[in]	dev	PHY device structure
	plca_status	Pointer to plca status

Return values

0	If successful.
-EIO	If communication with PHY failed.

genphy_set_plca_cfg()

int genphy_set_plca_cfg	(	const struct device *	dev,
		struct phy_plca_cfg *	plca_cfg )

#include <zephyr/net/phy.h>

Read PHY PLCA configuration.

This routine provides a generic interface to get PHY PLCA settings.

Parameters

[in]	dev	PHY device structure
	plca_cfg	Pointer to plca configuration structure

Return values

0	If successful.
-EIO	If communication with PHY failed.

phy_configure_link()

static int phy_configure_link ( const struct device * dev, enum phy_link_speed speeds )

inlinestatic

#include <zephyr/net/phy.h>

Configure PHY link.

This route configures the advertised link speeds.

Parameters

[in]	dev	PHY device structure
	speeds	OR'd link speeds to be advertised by the PHY

Return values

0	If successful.
-EIO	If communication with PHY failed.
-ENOTSUP	If not supported.

phy_get_link_state()

static int phy_get_link_state ( const struct device * dev, struct phy_link_state * state )

inlinestatic

#include <zephyr/net/phy.h>

Get PHY link state.

Returns the current state of the PHY link. This can be used by to determine when a link is up and the negotiated link speed.

Parameters

[in]	dev	PHY device structure
	state	Pointer to receive PHY state

Return values

0	If successful.
-EIO	If communication with PHY failed.

phy_get_plca_cfg()

static int phy_get_plca_cfg ( const struct device * dev, struct phy_plca_cfg * plca_cfg )

inlinestatic

#include <zephyr/net/phy.h>

Read PHY PLCA configuration.

This routine provides a generic interface to get PHY PLCA settings.

Parameters

[in]	dev	PHY device structure
	plca_cfg	Pointer to plca configuration structure

Return values

0	If successful.
-EIO	If communication with PHY failed.

phy_get_plca_sts()

static int phy_get_plca_sts ( const struct device * dev, bool * plca_status )

inlinestatic

#include <zephyr/net/phy.h>

Read PHY PLCA status.

This routine provides a generic interface to get PHY PLCA status.

Parameters

[in]	dev	PHY device structure
	plca_status	Pointer to plca status

Return values

0	If successful.
-EIO	If communication with PHY failed.

phy_link_callback_set()

static int phy_link_callback_set ( const struct device * dev, phy_callback_t callback, void * user_data )

inlinestatic

#include <zephyr/net/phy.h>

Set link state change callback.

Sets a callback that is invoked when link state changes. This is the preferred method for ethernet drivers to be notified of the PHY link state change.

Parameters

[in]	dev	PHY device structure
	callback	Callback handler
	user_data	Pointer to data specified by user.

Return values

0	If successful.
-ENOTSUP	If not supported.

phy_read()

static int phy_read ( const struct device * dev, uint16_t reg_addr, uint32_t * value )

inlinestatic

#include <zephyr/net/phy.h>

Read PHY registers.

This routine provides a generic interface to read from a PHY register.

Parameters

[in]	dev	PHY device structure
[in]	reg_addr	Register address
	value	Pointer to receive read value

Return values

0	If successful.
-EIO	If communication with PHY failed.

phy_read_c45()

static int phy_read_c45 ( const struct device * dev, uint8_t devad, uint16_t regad, uint16_t * data )

inlinestatic

#include <zephyr/net/phy.h>

Read PHY C45 register.

This routine provides a generic interface to read to a PHY C45 register.

Parameters

[in]	dev	PHY device structure
[in]	devad	Device address
[in]	regad	Register address
	data	Pointer to receive read data

Return values

0	If successful.
-EIO	If communication with PHY failed.

phy_set_plca_cfg()

static int phy_set_plca_cfg ( const struct device * dev, struct phy_plca_cfg * plca_cfg )

inlinestatic

#include <zephyr/net/phy.h>

Write PHY PLCA configuration.

This routine provides a generic interface to configure PHY PLCA settings.

Parameters

[in]	dev	PHY device structure
[in]	plca_cfg	Pointer to plca configuration structure

Return values

0	If successful.
-EIO	If communication with PHY failed.

phy_write()

static int phy_write ( const struct device * dev, uint16_t reg_addr, uint32_t value )

inlinestatic

#include <zephyr/net/phy.h>

Write PHY register.

This routine provides a generic interface to write to a PHY register.

Parameters

[in]	dev	PHY device structure
[in]	reg_addr	Register address
[in]	value	Value to write

Return values

0	If successful.
-EIO	If communication with PHY failed.

phy_write_c45()

static int phy_write_c45 ( const struct device * dev, uint8_t devad, uint16_t regad, uint16_t data )

inlinestatic

#include <zephyr/net/phy.h>

Write PHY C45 register.

This routine provides a generic interface to write to a PHY C45 register.

Parameters

[in]	dev	PHY device structure
[in]	devad	Device address
[in]	regad	Register address
[in]	data	Data to write

Return values

0	If successful.
-EIO	If communication with PHY failed.