PTP Interface

Detailed Description

Interface for PTP functions.

Summary

The PTP interface provides the functionality for using PTP.

Data Structures
struct	ptp_clock_properties_t
struct	ptp_time_t
struct	ptp_message_flags_t
struct	ptp_message_header_t
struct	ptp_message_sync_t
struct	ptp_message_pdelay_req_t
struct	ptp_message_pdelay_resp_t
struct	ptp_message_announce_t
struct	ptp_message_signaling_t
struct	ptp_message_management_t
struct	ptp_message_t
struct	ptp_callback_args_t
struct	ptp_pulse_timer_common_cfg_t
struct	ptp_pulse_timer_cfg_t
struct	ptp_sync_state_cfg_t
struct	ptp_synfp_cfg_t
struct	ptp_synfp_cfg_t.ether
struct	ptp_synfp_cfg_t.ipv4
struct	ptp_stca_cfg_t
struct	ptp_cfg_t
struct	ptp_api_t
struct	ptp_instance_t

Typedefs
typedef enum PTP_PACKED e_ptp_ctrl_field	ptp_ctrl_field_t
typedef ptp_message_sync_t	ptp_message_delay_req_t
typedef ptp_message_sync_t	ptp_message_follow_up_t
typedef ptp_message_pdelay_resp_t	ptp_message_delay_resp_t
typedef ptp_message_delay_resp_t	ptp_message_pdelay_resp_follow_up_t

Enumerations
enum	ptp_message_type_t
enum	ptp_port_state_t
enum	ptp_clock_delay_mechanism_t
enum	ptp_frame_format_t
enum	ptp_frame_filter_mode_t
enum	ptp_stca_clock_freq_t
enum	ptp_stca_clock_sel_t
enum	ptp_message_interval_t
enum	ptp_clock_correction_mode_t
enum	ptp_event_t
enum	ptp_ethernet_phy_interface_t

Variables
enum PTP_PACKED	e_ptp_ctrl_field

---

Data Structure Documentation

ptp_clock_properties_t

struct ptp_clock_properties_t

Clock properties used in the best master clock algorithm (BMCA) in order to determine the grandmaster clock.

In master mode, these properties will be advertised in announce messages.

Note: The final property used in BMCA is the clock ID. This is usually configured at runtime because it is often based on the hardware address.

Data Fields
uint8_t	priority1	Priority1 value used in best master calculation.
uint8_t	cclass	Class value.
uint8_t	accuracy	Accuracy of the clock.
uint16_t	variance	Variance of the clock.
uint8_t	priority2	Priority2 value used as secondary priority in best master calculation.

ptp_time_t

struct ptp_time_t

Structure for storing time with nanosecond precision .

Data Fields
uint16_t	seconds_upper	Upper 16 bits of the seconds.
uint32_t	seconds_lower	Lower 32 bits of the seconds.
uint32_t	nanoseconds	Nanoseconds.

ptp_message_flags_t

struct ptp_message_flags_t

Flags field in PTP message header.

ptp_message_header_t

struct ptp_message_header_t

Commom PTP Message Header.

Data Fields
uint8_t	message_type: 4	The message type.
uint8_t	sdoid_major: 4	Standard Organization ID Major.
uint8_t	version: 4	PTP Version.
uint8_t	minor_version: 4	PTP Minor Version.
uint16_t	message_length	The total message length (Including the header).
uint8_t	domain	The clock domain.
uint8_t	sdoid_minor: 8	Standard Organization ID minor.
ptp_message_flags_t	flags	Flags set in the message.
uint64_t	correction_field	Correction Field that is updated when a message passes through a transparent clock.
uint32_t	reserved
uint8_t	clock_id[8]	Clock ID that the message was sent from.
uint16_t	source_port_id	Port ID that the message was sent from.
uint16_t	sequence_id	Sequence ID of the message.
ptp_ctrl_field_t	control_field	Control field (Message specifc).
uint8_t	log_message_interval	Logbase2 of the message period.

ptp_message_sync_t

struct ptp_message_sync_t

Sync Message Type (0x00).

Data Fields
ptp_time_t	origin_timestamp	Timestamp when the message was transmitted.

ptp_message_pdelay_req_t

struct ptp_message_pdelay_req_t

PDelay_req Message Type (0x02).

Data Fields
ptp_time_t	origin_timestamp	Timestamp when the message was transmitted.
uint8_t	reserved[10]

ptp_message_pdelay_resp_t

struct ptp_message_pdelay_resp_t

PDelay_resp Message Type (0x03).

Data Fields
ptp_time_t	origin_timestamp	Timestamp when the message was transmitted.
uint8_t	source_port_identity[10]	Clock ID + sourcePortId.

ptp_message_announce_t

struct ptp_message_announce_t

Announce Message Type (0x0B).

Data Fields
ptp_time_t	origin_timestamp	Timestamp when the message was transmitted.
uint16_t	current_utc_offset	Offset from UTC in seconds.
uint8_t	reserved
ptp_clock_properties_t	clock_properties	Clock properties used in Best Master Clock Algorithm.
uint8_t	clock_id[8]	Clock ID that the message was sent from.
uint16_t	steps_removed	The number of boundary clocks between the clock and the grand master clock.
uint8_t	time_source	The source of time (Eg. INTERNAL_OSC).

ptp_message_signaling_t

struct ptp_message_signaling_t

Signaling Message Type (0x0C).

Data Fields
uint8_t	target_clock_id[8]	ID of the target PTP instance.
uint16_t	target_port_id	Port of the target PTP instance.

ptp_message_management_t

struct ptp_message_management_t

Management Message Type (0x0D).

Data Fields
uint8_t	target_clock_id[8]	ID of the target PTP instance.
uint16_t	target_port_id	Port of the target PTP instance.
uint8_t	starting_boundary_hops	The starting number of times the message is retransmitted by boundary clocks.
uint8_t	boundary_hops	The remaining number of retransmissions.
uint8_t	action	The action that will be taken on reception of the message.
uint8_t	reserved

ptp_message_t

struct ptp_message_t

Complete PTP Message.

Data Fields
ptp_message_header_t	header	Header of the message.
union ptp_message_t	__unnamed__

ptp_callback_args_t

struct ptp_callback_args_t

Arguments passed to p_ptp_callback.

Data Fields
ptp_event_t	event	Event that caused the callback.
ptp_message_t const *	p_message	The message received (PTP message fields will be little endian).
uint8_t const *	p_tlv_data	Start of TLV data (TLV data will be big endian).
uint16_t	tlv_data_size	Total bytes of TLV data.
uint32_t	pulse_timer_channel	Channel of the pulse timer that caused ptp_event_t::PTP_EVENT_PULSE_TIMER_MINT_RISING_EDGE.
void const *	p_context	Context value set in the configuration.

ptp_pulse_timer_common_cfg_t

struct ptp_pulse_timer_common_cfg_t

Structure for configuring the IPLS IRQ settings that are common to all pulse timer channels.

Data Fields
ptp_enable_t	ipls_rising_irq	Enable the IPLS IRQ when a rising edge is detected.
ptp_enable_t	ipls_falling_irq	Enable the IPLS IRQ when a falling edge is detected.
ptp_enable_t	ipls_rising_irq_auto_clear	Auto disable the rising edge IRQ after the first rising edge is detected.
ptp_enable_t	ipls_falling_irq_auto_clear	Auto disable the falling edge IRQ after the first falling edge is detected.

ptp_pulse_timer_cfg_t

struct ptp_pulse_timer_cfg_t

Structure for configuring a pulse timer channel.

Data Fields
ptp_time_t	start_time	The exact time when the timer will start.
uint32_t	period	The period of the timer in nanoseconds.
uint32_t	pulse	The pulse width of the timer in nanoseconds.
ptp_enable_t	mint_rising_irq	Enable MINT rising edge IRQ.
ptp_enable_t	ipls_rising_event	Enable IPLS rising edge ELC event.
ptp_enable_t	ipls_falling_event	Enable IPLS falling edge ELC event.
ptp_enable_t	ipls_rising_event_auto_clear	Enable IPLS rising edge ELC event.
ptp_enable_t	ipls_falling_event_auto_clear	Enable IPLS falling edge ELC event.
ptp_enable_t	ipls_irq_source	Enable using this channel as a source for the IPLS IRQ.

ptp_sync_state_cfg_t

struct ptp_sync_state_cfg_t

Configuration settings for determining when the PTP clock is synchronized.

Data Fields
uint64_t	threshold	The maximum clock offset required to transition between synchronization states.
uint8_t	count	The number of times the clock must be above the threshold in order to transition between synchronization states.

ptp_synfp_cfg_t

struct ptp_synfp_cfg_t

Configuration settings for the SYNFP.

Data Fields
ptp_ethernet_phy_interface_t	ethernet_phy_interface	The type of interface used to communicate with the PHY.
ptp_frame_format_t	frame_format	Frame format used to transport PTP messages.
ptp_frame_filter_mode_t	frame_filter	Frame filter mode.
uint8_t	clock_domain	Clock domain that the clock operates in.
ptp_enable_t	clock_domain_filter	Filter out messages from other clock domains.
ptp_message_interval_t	announce_interval	Interval for transmitting announce messages.
ptp_message_interval_t	sync_interval	Interval for transmitting sync messages.
ptp_message_interval_t	delay_req_interval	Interval for transmitting delay_req messages.
uint32_t	message_timeout	Timeout in milliseconds for receiving PTP messages.
ptp_clock_properties_t	clock_properties	Clock properties used in annonce messages.
uint8_t	timesource	TimeSource field used in announce messages.
uint8_t *	p_multicast_addr_filter	Filter for multicast packets.
struct ptp_synfp_cfg_t	ether	Valid if frame_format is set to Ethernet II or IEEE 802.3.
struct ptp_synfp_cfg_t	ipv4	Valid if frame_format is set to IPV4_UDP.

ptp_synfp_cfg_t.ether

struct ptp_synfp_cfg_t.ether

Valid if frame_format is set to Ethernet II or IEEE 802.3.

Data Fields
uint8_t *	p_primary_mac_addr	The MAC address to send primary messages.
uint8_t *	p_pdelay_mac_addr	The MAC address to send p2p messages.

ptp_synfp_cfg_t.ipv4

struct ptp_synfp_cfg_t.ipv4

Valid if frame_format is set to IPV4_UDP.

Data Fields
uint32_t	primary_ip_addr	The IP address to send primary messages.
uint32_t	pdelay_ip_addr	The IP address to send pdelay messages.
uint8_t	event_tos	Type of service for event messages.
uint8_t	general_tos	Type of service for general messages.
uint8_t	primary_ttl	Time to live for primary messages.
uint8_t	pdelay_ttl	Time to live for pdelay messages.
uint16_t	event_udp_port	The port to send event messages.
uint16_t	general_udp_port	The port to send general messages.

ptp_stca_cfg_t

struct ptp_stca_cfg_t

Configuration settings for the STCA.

Data Fields
ptp_stca_clock_freq_t	clock_freq	Select the clock frequency of the STCA.
ptp_stca_clock_sel_t	clock_sel	Select the input clock to the STCA.
ptp_clock_correction_mode_t	clock_correction_mode	Select the clock correction mode.
uint8_t	gradient_worst10_interval	Select the interval for the gradient worst10 acquisition.
ptp_sync_state_cfg_t	sync_threshold	Configure the synchronization threshold.
ptp_sync_state_cfg_t	sync_loss_threshold	Configure the SYnchronization lost threshold.

ptp_cfg_t

struct ptp_cfg_t

User configuration structure, used in open function

Data Fields
ptp_synfp_cfg_t	synfp
	Configuration settings for the SYNFP.
ptp_stca_cfg_t	stca
	Configuration settings for the STCA.
edmac_instance_t *	p_edmac_instance
	Pointer to PTP edmac instance.
uint16_t	buffer_size
	The maximum Ethernet packet size that can be transmitted or received.
uint8_t **	p_rx_buffers
	Pointer to list of buffers used to receive PTP packets.
uint8_t **	p_tx_buffers
	Pointer to list of buffers used to transmit PTP packets.
IRQn_Type	mint_irq
	Interrupt number for PTP event IRQ.
IRQn_Type	ipls_irq
	Interrupt number for PTP timer IRQ.
uint8_t	mint_ipl
	Interrupt priority of the PTP event IRQ.
uint8_t	ipls_ipl
	Interrupt priority of the PTP timer IRQ.
void(*	p_callback )(ptp_callback_args_t *p_args)

Field Documentation

p_callback

void(* ptp_cfg_t::p_callback) (ptp_callback_args_t *p_args)

Callback for handling received PTP events.

ptp_api_t

struct ptp_api_t

Timer API structure. General timer functions implemented at the HAL layer follow this API.

Data Fields
fsp_err_t(*	open )(ptp_ctrl_t *const p_ctrl, ptp_cfg_t const *const p_cfg)
fsp_err_t(*	macAddrSet )(ptp_ctrl_t *const p_ctrl, uint8_t const *const p_mac_addr)
fsp_err_t(*	ipAddrSet )(ptp_ctrl_t *const p_ctrl, uint32_t ip_addr)
fsp_err_t(*	localClockIdSet )(ptp_ctrl_t *const p_ctrl, uint8_t const *const p_clock_id)
fsp_err_t(*	masterClockIdSet )(ptp_ctrl_t *const p_ctrl, uint8_t const *const p_clock_id, uint16_t port_id)
fsp_err_t(*	messageFlagsSet )(ptp_ctrl_t *const p_ctrl, ptp_message_type_t message_type, ptp_message_flags_t flags)
fsp_err_t(*	currentUtcOffsetSet )(ptp_ctrl_t *const p_ctrl, uint16_t offset)
fsp_err_t(*	portStateSet )(ptp_ctrl_t *const p_ctrl, uint32_t state)
fsp_err_t(*	messageSend )(ptp_ctrl_t *const p_ctrl, ptp_message_t const *const p_message, uint8_t const *const p_tlv_data, uint16_t tlv_data_size)
fsp_err_t(*	localClockValueSet )(ptp_ctrl_t *const p_ctrl, ptp_time_t const *const p_time)
fsp_err_t(*	localClockValueGet )(ptp_ctrl_t *const p_ctrl, ptp_time_t *const p_time)
fsp_err_t(*	pulseTimerCommonConfig )(ptp_ctrl_t *const p_ctrl, ptp_pulse_timer_common_cfg_t *p_timer_cfg)
fsp_err_t(*	pulseTimerEnable )(ptp_ctrl_t *const p_ctrl, uint32_t channel, ptp_pulse_timer_cfg_t *const p_timer_cfg)
fsp_err_t(*	pulseTimerDisable )(ptp_ctrl_t *const p_ctrl, uint32_t channel)
fsp_err_t(*	close )(ptp_ctrl_t *const p_ctrl)

Field Documentation

open

fsp_err_t(* ptp_api_t::open) (ptp_ctrl_t *const p_ctrl, ptp_cfg_t const *const p_cfg)

Initial configuration.

Note

To reconfigure after calling this function, call ptp_api_t::close first.

Parameters

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

macAddrSet

fsp_err_t(* ptp_api_t::macAddrSet) (ptp_ctrl_t *const p_ctrl, uint8_t const *const p_mac_addr)

Set the MAC address for the PTP.

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	p_hw_addr	Pointer to the 6 byte MAC address.

ipAddrSet

fsp_err_t(* ptp_api_t::ipAddrSet) (ptp_ctrl_t *const p_ctrl, uint32_t ip_addr)

Set the IP address for the PTP.

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	ip_addr	32 bit IPv4 address of the PTP.

localClockIdSet

fsp_err_t(* ptp_api_t::localClockIdSet) (ptp_ctrl_t *const p_ctrl, uint8_t const *const p_clock_id)

Set the local clock ID (Usually based off of the PTP MAC address).

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	p_clock_id	Pointer to 8 byte clock ID.

masterClockIdSet

fsp_err_t(* ptp_api_t::masterClockIdSet) (ptp_ctrl_t *const p_ctrl, uint8_t const *const p_clock_id, uint16_t port_id)

Set the master clock ID (Usually obtained from previously received announce message).

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	p_clock_id	Pointer to 8 byte clock ID.
[in]	port_id	The port on the master clock.

messageFlagsSet

fsp_err_t(* ptp_api_t::messageFlagsSet) (ptp_ctrl_t *const p_ctrl, ptp_message_type_t message_type, ptp_message_flags_t flags)

Set the flags field for the given message type.

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	message_type	The message type.
[in]	flags	Flags to set.

currentUtcOffsetSet

fsp_err_t(* ptp_api_t::currentUtcOffsetSet) (ptp_ctrl_t *const p_ctrl, uint16_t offset)

Sets the offsetFromMaster field in announce messages.

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	offset	New currentUtcOffset value.

portStateSet

fsp_err_t(* ptp_api_t::portStateSet) (ptp_ctrl_t *const p_ctrl, uint32_t state)

Transition to a new clock state.

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	state	The state to transition into.

messageSend

fsp_err_t(* ptp_api_t::messageSend) (ptp_ctrl_t *const p_ctrl, ptp_message_t const *const p_message, uint8_t const *const p_tlv_data, uint16_t tlv_data_size)

Send a PTP message. Appropriate fields in the PTP message will be endian swapped. The application must ensure that the TLV data is in big endian format.

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	p_message	Pointer to a PTP message.
[in]	p_tlv_data	Pointer to TLV data that is appended to the end of the PTP message.
[in]	tlv_data_size	Size of the TLV data in bytes.

localClockValueSet

fsp_err_t(* ptp_api_t::localClockValueSet) (ptp_ctrl_t *const p_ctrl, ptp_time_t const *const p_time)

Set the local clock value.

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	p_time	Pointer to the new time setting.

localClockValueGet

fsp_err_t(* ptp_api_t::localClockValueGet) (ptp_ctrl_t *const p_ctrl, ptp_time_t *const p_time)

Get the local clock value.

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	p_time	Pointer to store the current time setting.

pulseTimerCommonConfig

fsp_err_t(* ptp_api_t::pulseTimerCommonConfig) (ptp_ctrl_t *const p_ctrl, ptp_pulse_timer_common_cfg_t *p_timer_cfg)

Configuration that is common to all of the pulse timers.

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	p_timer_cfg	Pointer to the pulse timer common configuration.

pulseTimerEnable

fsp_err_t(* ptp_api_t::pulseTimerEnable) (ptp_ctrl_t *const p_ctrl, uint32_t channel, ptp_pulse_timer_cfg_t *const p_timer_cfg)

Setup a pulse timer.

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	channel	The pulse timer channel to setup.
[in]	p_timer_cfg	Pointer to the pulse timer configuration.

pulseTimerDisable

fsp_err_t(* ptp_api_t::pulseTimerDisable) (ptp_ctrl_t *const p_ctrl, uint32_t channel)

Stop a pulse timer.

Parameters

[in]	p_ctrl	Pointer to control structure.
[in]	channel	The pulse timer channel to stop.

close

fsp_err_t(* ptp_api_t::close) (ptp_ctrl_t *const p_ctrl)

Stop PTP operation.

Parameters

[in]

p_ctrl

Pointer to control structure.

ptp_instance_t

struct ptp_instance_t

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

Data Fields
ptp_ctrl_t *	p_ctrl	Pointer to the control structure for this instance.
ptp_cfg_t const *	p_cfg	Pointer to the configuration structure for this instance.
ptp_api_t const *	p_api	Pointer to the API structure for this instance.

Typedef Documentation

ptp_ctrl_field_t

typedef enum PTP_PACKED e_ptp_ctrl_field ptp_ctrl_field_t

The control field for PTP message header.

ptp_message_delay_req_t

typedef ptp_message_sync_t ptp_message_delay_req_t

Delay_req Message Type (0x01).

ptp_message_follow_up_t

typedef ptp_message_sync_t ptp_message_follow_up_t

Follow_up Message Type (0x08).

ptp_message_delay_resp_t

typedef ptp_message_pdelay_resp_t ptp_message_delay_resp_t

Delay_resp Message Type (0x09).

ptp_message_pdelay_resp_follow_up_t

typedef ptp_message_delay_resp_t ptp_message_pdelay_resp_follow_up_t

PDelay_resp_follow_up Message Type (0x0A).

Enumeration Type Documentation

ptp_message_type_t

enum ptp_message_type_t

Standard PTP message types.

Enumerator
PTP_MESSAGE_TYPE_SYNC	Sync Message Type.
PTP_MESSAGE_TYPE_DELAY_REQ	Delay_req Message Type.
PTP_MESSAGE_TYPE_PDELAY_REQ	PDelay_req Message Type.
PTP_MESSAGE_TYPE_PDELAY_RESP	PDelay_resp Message Type.
PTP_MESSAGE_TYPE_FOLLOW_UP	Follow_up Message Type.
PTP_MESSAGE_TYPE_DELAY_RESP	Delay_resp Message Type.
PTP_MESSAGE_TYPE_PDELAY_RESP_FOLLOW_UP	PDelay_resp_follow_up Message Type.
PTP_MESSAGE_TYPE_ANNOUNCE	Announce Message Type.
PTP_MESSAGE_TYPE_SIGNALING	Signaling Message Type.
PTP_MESSAGE_TYPE_MANAGEMENT	Management Message Type.

ptp_port_state_t

enum ptp_port_state_t

Possible states that the PTP instance can be in.

Enumerator
PTP_PORT_STATE_GENERATE_ANNOUNCE	Generate Announce Messages.
PTP_PORT_STATE_GENERATE_SYNC	Generate Sync Messages.
PTP_PORT_STATE_GENERATE_DELAY_REQ	Generate Delay_req Messages.
PTP_PORT_STATE_GENERATE_PDELAY_REQ	Generate PDelay_req Messages.
PTP_PORT_STATE_RECEIVE_ANNOUNCE	Receive Announce Messages from ptp_cfg_t::p_callback.
PTP_PORT_STATE_RECEIVE_SYNC	Receive Sync Messages from ptp_cfg_t::p_callback.
PTP_PORT_STATE_RECEIVE_FOLLOW_UP	Receive Follow_up Messages from ptp_cfg_t::p_callback.
PTP_PORT_STATE_RECEIVE_DELAY_REQ	Receive Delay_req Messages from ptp_cfg_t::p_callback.
PTP_PORT_STATE_RECEIVE_DELAY_RESP	Receive Delay_resp Messages from ptp_cfg_t::p_callback.
PTP_PORT_STATE_RECEIVE_PDELAY_REQ	Receive PDelay_req Messages from ptp_cfg_t::p_callback.
PTP_PORT_STATE_RECEIVE_PDELAY_RESP	Receive PDelay_resp Messages from ptp_cfg_t::p_callback.
PTP_PORT_STATE_RECEIVE_PDELAY_RESP_FOLLOW_UP	Receive PDelay_resp_follow_up Messages from ptp_cfg_t::p_callback.
PTP_PORT_STATE_RECEIVE_MANAGEMENT	Receive Management Messages from ptp_cfg_t::p_callback.
PTP_PORT_STATE_RECEIVE_SIGNALING	Receive Signaling Messages from ptp_cfg_t::p_callback.
PTP_PORT_STATE_PROCESS_SYNC	Enable Sync Message processing.
PTP_PORT_STATE_PROCESS_FOLLOW_UP	Enable Follow_up Message processing.
PTP_PORT_STATE_PROCESS_DELAY_REQ	Enable Delay_req Message processing.
PTP_PORT_STATE_PROCESS_DELAY_RESP	Enable Delay_resp Message processing.
PTP_PORT_STATE_PROCESS_PDELAY_REQ	Enable PDelay_req Message processing.
PTP_PORT_STATE_PROCESS_PDELAY_RESP	Enable PDelay_resp Message processing.
PTP_PORT_STATE_PROCESS_PDELAY_RESP_FOLLOW_UP	Enable PDelay_resp_follow_up Message processing.
PTP_PORT_STATE_PASSIVE	Configure the PTP instance to only receive Announce, Management, and Signaling Messages.
PTP_PORT_STATE_E2E_MASTER	Configure the PTP instance to operate as a E2E Master.
PTP_PORT_STATE_E2E_SLAVE	Configure the PTP instance to operate as a E2E Slave.
PTP_PORT_STATE_P2P_MASTER	Configure the PTP instance to operate as a P2P Master.
PTP_PORT_STATE_P2P_SLAVE	Configure the PTP instance to operate as a P2P Slave.
PTP_PORT_STATE_RECEIVE_ALL	Configure the PTP instance to receive all messages.
PTP_PORT_STATE_DISABLE	Disable all PTP message generation, processing, and reception.

ptp_clock_delay_mechanism_t

enum ptp_clock_delay_mechanism_t

The mechanism used for delay messages.

Enumerator
PTP_CLOCK_DELAY_MECHANISM_E2E	End to end delay mechanism.
PTP_CLOCK_DELAY_MECHANISM_P2P	Peer to peer delay mechanism.

ptp_frame_format_t

enum ptp_frame_format_t

Frame formats that PTP messages can be encapsulated in.

Enumerator
PTP_FRAME_FORMAT_ETHERII	Send PTP messages using Ethernet II frames.
PTP_FRAME_FORMAT_IEEE802_3	Send PTP messages using IEEE802_3 frames.
PTP_FRAME_FORMAT_ETHERII_IPV4_UDP	Send PTP messages using Ethernet II frames with an IP and UDP header.
PTP_FRAME_FORMAT_IEEE802_3_IPV4_UDP	Send PTP messages using IEEE802.3 frames with an IP and UDP header.

ptp_frame_filter_mode_t

enum ptp_frame_filter_mode_t

Filter PTP messages based on destination MAC address. Messages that pass the filter will be transferred to the ETHERC EDMAC.

Enumerator
PTP_FRAME_FILTER_MODE_EXT_PROMISCUOUS_MODE	Receive all packets.
PTP_FRAME_FILTER_MODE_UNICAST_MULTICAST	Receive all unicast packets destined for the PTP and all multicast packets.
PTP_FRAME_FILTER_MODE_UNICAST_MULTICAST_FILTERED	Receive Unicast packets destined for the PTP and filter configured multicast packets.
PTP_FRAME_FILTER_MODE_UNICAST	Receive unicast packets destined for the PTP.

ptp_stca_clock_freq_t

enum ptp_stca_clock_freq_t

STCA input clock frequency.

Enumerator
PTP_STCA_CLOCK_FREQ_20MHZ	20 Mhz Input Clock
PTP_STCA_CLOCK_FREQ_25MHZ	25 Mhz Input Clock
PTP_STCA_CLOCK_FREQ_50MHZ	50 Mhz Input Clock
PTP_STCA_CLOCK_FREQ_100MHZ	100 Mhz Input Clock

ptp_stca_clock_sel_t

enum ptp_stca_clock_sel_t

STCA input clock selection.

Enumerator
PTP_STCA_CLOCK_SEL_PCLKA_DIV_1	PCLKA.
PTP_STCA_CLOCK_SEL_PCLKA_DIV_2	PCLKA Divided by 2.
PTP_STCA_CLOCK_SEL_PCLKA_DIV_3	PCLKA Divided by 3.
PTP_STCA_CLOCK_SEL_PCLKA_DIV_4	PCLKA Divided by 4.
PTP_STCA_CLOCK_SEL_PCLKA_DIV_5	PCLKA Divided by 5.
PTP_STCA_CLOCK_SEL_PCLKA_DIV_6	PCLKA Divided by 6.
PTP_STCA_CLOCK_SEL_REF50CK0	50-MHz Reference Signal for timing in RMII mode (STCA clock frequency is 25 Mhz when REF50CK0 is used).

ptp_message_interval_t

enum ptp_message_interval_t

Message interval for transmitting PTP messages.

Enumerator
PTP_MESSAGE_INTERVAL_1_128	1 / 128 seconds
PTP_MESSAGE_INTERVAL_1_64	1 / 64 seconds
PTP_MESSAGE_INTERVAL_1_32	1 / 32 seconds
PTP_MESSAGE_INTERVAL_1_16	1 / 16 seconds
PTP_MESSAGE_INTERVAL_1_8	1 / 8 seconds
PTP_MESSAGE_INTERVAL_1_4	1 / 4 seconds
PTP_MESSAGE_INTERVAL_1_2	1 / 2 seconds
PTP_MESSAGE_INTERVAL_1	1 seconds
PTP_MESSAGE_INTERVAL_2	2 seconds
PTP_MESSAGE_INTERVAL_4	4 seconds
PTP_MESSAGE_INTERVAL_8	8 seconds
PTP_MESSAGE_INTERVAL_16	16 seconds
PTP_MESSAGE_INTERVAL_32	32 seconds
PTP_MESSAGE_INTERVAL_64	64 seconds

ptp_clock_correction_mode_t

enum ptp_clock_correction_mode_t

Clock correction mode.

Enumerator
PTP_CLOCK_CORRECTION_MODE1	Correct the local clock using the current offsetFromMaster value.
PTP_CLOCK_CORRECTION_MODE2	Correct the local clock using the calculated clock gradient.

ptp_event_t

enum ptp_event_t

PTP events provided by ptp_cfg_t::p_callback.

Enumerator
PTP_EVENT_SYNC_ACQUIRED	The local clock is synchronized to the master clock.
PTP_EVENT_SYNC_LOST	The local clock is not synchronized to the master clcok.
PTP_EVENT_SYNC_MESSAGE_TIMEOUT	A sync message has not been received for the configured time.
PTP_EVENT_WORST10_ACQUIRED	Gradient worst10 values has been calcualted.
PTP_EVENT_OFFSET_FROM_MASTER_UPDATED	The offset from the master clock has been updated.
PTP_EVENT_LOG_MESSAGE_INT_CHANGED	The message interval was changed.
PTP_EVENT_MEAN_PATH_DELAY_UPDATED	The mean path delay has been updated.
PTP_EVENT_DELAY_RESP_TIMEOUT	A delay_resp has not been received for the configured time.
PTP_EVENT_LOG_MESSAGE_INT_OUT_OF_RANGE	The updated message interval is out of range.
PTP_EVENT_DELAY_REQ_FIFO_OVERFLOW	The FIFO buffer for storing information from received Delay_Req messages holds 32 or more entries.
PTP_EVENT_LOOP_RECEPTION_DETECTED	A packet with the same sourcePortIdendity as the local clock was received.
PTP_EVENT_CTRL_INFO_ABNORMALITY	A malformed frame was received (EDMAC, ETHERC, and EPTPC must be reset).
PTP_EVENT_DELAY_RESP_PROCESSING_HALTED	Processing of delay_resp messages has been halted.
PTP_EVENT_MESSAGE_GENERATION_HALTED	Generation of messages has been halted.
PTP_EVENT_MESSAGE_RECEIVED	A PTP message was received from the EDMAC.
PTP_EVENT_MESSAGE_TRANSMIT_COMPLETE	A PTP message has been transmitted.
PTP_EVENT_PULSE_TIMER_MINT_RISING_EDGE	A rising edge occurred on a pulse timer channel.
PTP_EVENT_PULSE_TIMER_IPLS_COMMON	A rising or falling edge occurred on any pulse timer channel.

ptp_ethernet_phy_interface_t

enum ptp_ethernet_phy_interface_t

The Ethernet PHY interface type.

Enumerator
PTP_ETHERNET_PHY_INTERFACE_MII	Media-independant interface.
PTP_ETHERNET_PHY_INTERFACE_RMII	Reduced media-independant interface.

Variable Documentation

e_ptp_ctrl_field

enum PTP_PACKED e_ptp_ctrl_field

The control field for PTP message header.