MDIO Interface

MDIO Interface. More...

Functions
void	mdio_bus_enable (const struct device *dev)
	Enable MDIO bus.
void	mdio_bus_disable (const struct device *dev)
	Disable MDIO bus and tri-state drivers.
int	mdio_read (const struct device *dev, uint8_t prtad, uint8_t regad, uint16_t *data)
	Read from MDIO Bus.
int	mdio_write (const struct device *dev, uint8_t prtad, uint8_t regad, uint16_t data)
	Write to MDIO bus.
int	mdio_read_c45 (const struct device *dev, uint8_t prtad, uint8_t devad, uint16_t regad, uint16_t *data)
	Read from MDIO Bus using Clause 45 access.
int	mdio_write_c45 (const struct device *dev, uint8_t prtad, uint8_t devad, uint16_t regad, uint16_t data)
	Write to MDIO bus using Clause 45 access.

Detailed Description

MDIO Interface.

Function Documentation

mdio_bus_disable()

void mdio_bus_disable

(

const struct device *

dev

)

#include <zephyr/drivers/mdio.h>

Disable MDIO bus and tri-state drivers.

Parameters

[in]

dev

Pointer to the device structure for the controller

mdio_bus_enable()

void mdio_bus_enable

(

const struct device *

dev

)

#include <zephyr/drivers/mdio.h>

Enable MDIO bus.

Parameters

[in]

dev

Pointer to the device structure for the controller

mdio_read()

int mdio_read	(	const struct device *	dev,
		uint8_t	prtad,
		uint8_t	regad,
		uint16_t *	data
	)

#include <zephyr/drivers/mdio.h>

Read from MDIO Bus.

This routine provides a generic interface to perform a read on the MDIO bus.

Parameters

[in]	dev	Pointer to the device structure for the controller
[in]	prtad	Port address
[in]	regad	Register address
	data	Pointer to receive read data

Return values

0	If successful.
-EIO	General input / output error.
-ETIMEDOUT	If transaction timedout on the bus
-ENOSYS	if read is not supported

mdio_read_c45()

int mdio_read_c45	(	const struct device *	dev,
		uint8_t	prtad,
		uint8_t	devad,
		uint16_t	regad,
		uint16_t *	data
	)

#include <zephyr/drivers/mdio.h>

Read from MDIO Bus using Clause 45 access.

This routine provides an interface to perform a read on the MDIO bus using IEEE 802.3 Clause 45 access.

Parameters

[in]	dev	Pointer to the device structure for the controller
[in]	prtad	Port address
[in]	devad	Device address
[in]	regad	Register address
	data	Pointer to receive read data

Return values

0	If successful.
-EIO	General input / output error.
-ETIMEDOUT	If transaction timedout on the bus
-ENOSYS	if write using Clause 45 access is not supported

mdio_write()

int mdio_write	(	const struct device *	dev,
		uint8_t	prtad,
		uint8_t	regad,
		uint16_t	data
	)

#include <zephyr/drivers/mdio.h>

Write to MDIO bus.

This routine provides a generic interface to perform a write on the MDIO bus.

Parameters

[in]	dev	Pointer to the device structure for the controller
[in]	prtad	Port address
[in]	regad	Register address
[in]	data	Data to write

Return values

0	If successful.
-EIO	General input / output error.
-ETIMEDOUT	If transaction timedout on the bus
-ENOSYS	if write is not supported

mdio_write_c45()

int mdio_write_c45	(	const struct device *	dev,
		uint8_t	prtad,
		uint8_t	devad,
		uint16_t	regad,
		uint16_t	data
	)

#include <zephyr/drivers/mdio.h>

Write to MDIO bus using Clause 45 access.

This routine provides an interface to perform a write on the MDIO bus using IEEE 802.3 Clause 45 access.

Parameters

[in]	dev	Pointer to the device structure for the controller
[in]	prtad	Port address
[in]	devad	Device address
[in]	regad	Register address
[in]	data	Data to write

Return values

0	If successful.
-EIO	General input / output error.
-ETIMEDOUT	If transaction timedout on the bus
-ENOSYS	if write using Clause 45 access is not supported