Ethernet PHY Interface

Detailed Description

Interface for Ethernet PHY functions.

Summary

The Ethernet PHY module (r_ether_phy) provides an API for standard Ethernet PHY communications applications that use the ETHERC peripheral.

The Ethernet PHY interface supports the following features:

• Auto negotiation support
• Flow control support
• Link status check support

Data Structures
struct	ether_phy_cfg_t
struct	ether_phy_api_t
struct	ether_phy_instance_t

Typedefs
typedef void	ether_phy_ctrl_t

Enumerations
enum	ether_phy_lsi_type_t
enum	ether_phy_flow_control_t
enum	ether_phy_link_speed_t
enum	ether_phy_mii_type_t

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Data Structure Documentation

ether_phy_cfg_t

struct ether_phy_cfg_t

Configuration parameters.

Data Fields
uint8_t	channel	Channel.
uint8_t	phy_lsi_address	Address of PHY-LSI.
uint32_t	phy_reset_wait_time	Wait time for PHY-LSI reboot.
int32_t	mii_bit_access_wait_time	Wait time for MII/RMII access.
ether_phy_lsi_type_t	phy_lsi_type	Phy LSI type.
ether_phy_flow_control_t	flow_control	Flow control functionally enable or disable.
ether_phy_mii_type_t	mii_type	Interface type is MII or RMII.
void const *	p_context	Placeholder for user data. Passed to the user callback in ether_phy_callback_args_t.
void const *	p_extend	Placeholder for user extension.

ether_phy_api_t

struct ether_phy_api_t

Functions implemented at the HAL layer will follow this API.

Data Fields
fsp_err_t(*	open )(ether_phy_ctrl_t *const p_ctrl, ether_phy_cfg_t const *const p_cfg)
fsp_err_t(*	close )(ether_phy_ctrl_t *const p_ctrl)
fsp_err_t(*	chipInit )(ether_phy_ctrl_t *const p_ctrl, ether_phy_cfg_t const *const p_cfg)
fsp_err_t(*	read )(ether_phy_ctrl_t *const p_ctrl, uint32_t reg_addr, uint32_t *const p_data)
fsp_err_t(*	write )(ether_phy_ctrl_t *const p_ctrl, uint32_t reg_addr, uint32_t data)
fsp_err_t(*	startAutoNegotiate )(ether_phy_ctrl_t *const p_ctrl)
fsp_err_t(*	linkPartnerAbilityGet )(ether_phy_ctrl_t *const p_ctrl, uint32_t *const p_line_speed_duplex, uint32_t *const p_local_pause, uint32_t *const p_partner_pause)
fsp_err_t(*	linkStatusGet )(ether_phy_ctrl_t *const p_ctrl)

Field Documentation

open

fsp_err_t(* ether_phy_api_t::open) (ether_phy_ctrl_t *const p_ctrl, ether_phy_cfg_t const *const p_cfg)

Open driver.

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	p_cfg	Pointer to pin configuration structure.

close

fsp_err_t(* ether_phy_api_t::close) (ether_phy_ctrl_t *const p_ctrl)

Close driver.

Parameters

[in]

p_ctrl

Pointer to control structure.

chipInit

fsp_err_t(* ether_phy_api_t::chipInit) (ether_phy_ctrl_t *const p_ctrl, ether_phy_cfg_t const *const p_cfg)

Initialize PHY-LSI.

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	p_cfg	Pointer to pin configuration structure.

read

fsp_err_t(* ether_phy_api_t::read) (ether_phy_ctrl_t *const p_ctrl, uint32_t reg_addr, uint32_t *const p_data)

Read register value of PHY-LSI.

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	reg_addr	Register address.
[out]	p_data	Pointer to the location to store read data.

write

fsp_err_t(* ether_phy_api_t::write) (ether_phy_ctrl_t *const p_ctrl, uint32_t reg_addr, uint32_t data)

Write data to register of PHY-LSI.

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	reg_addr	Register address.
[in]	data	Data written to register.

startAutoNegotiate

fsp_err_t(* ether_phy_api_t::startAutoNegotiate) (ether_phy_ctrl_t *const p_ctrl)

Start auto negotiation.

Parameters

[in]

p_ctrl

Pointer to control structure.

linkPartnerAbilityGet

fsp_err_t(* ether_phy_api_t::linkPartnerAbilityGet) (ether_phy_ctrl_t *const p_ctrl, uint32_t *const p_line_speed_duplex, uint32_t *const p_local_pause, uint32_t *const p_partner_pause)

Get the partner ability.

Parameters

[in]	p_ctrl	Pointer to control structure.
[out]	p_line_speed_duplex	Pointer to the location of both the line speed and the duplex.
[out]	p_local_pause	Pointer to the location to store the local pause bits.
[out]	p_partner_pause	Pointer to the location to store the partner pause bits.

linkStatusGet

fsp_err_t(* ether_phy_api_t::linkStatusGet) (ether_phy_ctrl_t *const p_ctrl)

Get Link status from PHY-LSI interface.

Parameters

[in]

p_ctrl

Pointer to control structure.

ether_phy_instance_t

struct ether_phy_instance_t

This structure encompasses everything that is needed to use an instance of this interface.

Data Fields
ether_phy_ctrl_t *	p_ctrl	Pointer to the control structure for this instance.
ether_phy_cfg_t const *	p_cfg	Pointer to the configuration structure for this instance.
ether_phy_api_t const *	p_api	Pointer to the API structure for this instance.

Typedef Documentation

ether_phy_ctrl_t

typedef void ether_phy_ctrl_t

Control block. Allocate an instance specific control block to pass into the API calls.

Enumeration Type Documentation

ether_phy_lsi_type_t

enum ether_phy_lsi_type_t

Phy LSI

Enumerator
ETHER_PHY_LSI_TYPE_DEFAULT	Select default configuration. This type dose not change Phy LSI default setting by strapping option.
ETHER_PHY_LSI_TYPE_KSZ8091RNB	Select configuration for KSZ8091RNB.
ETHER_PHY_LSI_TYPE_KSZ8041	Select configuration for KSZ8041.
ETHER_PHY_LSI_TYPE_DP83620	Select configuration for DP83620.
ETHER_PHY_LSI_TYPE_ICS1894	Select configuration for ICS1894.
ETHER_PHY_LSI_TYPE_CUSTOM	Select configuration for User custom.

ether_phy_flow_control_t

enum ether_phy_flow_control_t

Flow control functionality

Enumerator
ETHER_PHY_FLOW_CONTROL_DISABLE	Disable flow control functionality.
ETHER_PHY_FLOW_CONTROL_ENABLE	Enable flow control functionality with pause frames.

ether_phy_link_speed_t

enum ether_phy_link_speed_t

Link speed

Enumerator
ETHER_PHY_LINK_SPEED_NO_LINK	Link is not established.
ETHER_PHY_LINK_SPEED_10H	Link status is 10Mbit/s and half duplex.
ETHER_PHY_LINK_SPEED_10F	Link status is 10Mbit/s and full duplex.
ETHER_PHY_LINK_SPEED_100H	Link status is 100Mbit/s and half duplex.
ETHER_PHY_LINK_SPEED_100F	Link status is 100Mbit/s and full duplex.
ETHER_PHY_LINK_SPEED_1000H	Link status is 1000Mbit/s and half duplex.
ETHER_PHY_LINK_SPEED_1000F	Link status is 1000Mbit/s and full duplex.

ether_phy_mii_type_t

enum ether_phy_mii_type_t

Media-independent interface

Enumerator
ETHER_PHY_MII_TYPE_MII	MII.
ETHER_PHY_MII_TYPE_RMII	RMII.
ETHER_PHY_MII_TYPE_GMII	GMII.
ETHER_PHY_MII_TYPE_RGMII	RGMII.