gPTP support

generic Precision Time Protocol (gPTP) support More...

Data Structures
struct	gptp_scaled_ns
	Scaled Nanoseconds. More...
struct	gptp_uscaled_ns
	UScaled Nanoseconds. More...
struct	gptp_port_identity
	Port Identity. More...
struct	gptp_flags
	gPTP message flags More...
struct	gptp_hdr
	gPTP message header More...
struct	gptp_phase_dis_cb
	Phase discontinuity callback structure. More...
struct	gptp_clk_src_time_invoke_params
	ClockSourceTime.invoke function parameters. More...

Typedefs
typedef void(*	gptp_phase_dis_callback_t) (uint8_t *gm_identity, uint16_t *time_base, struct gptp_scaled_ns *last_gm_ph_change, double *last_gm_freq_change)
	Define callback that is called after a phase discontinuity has been sent by the grandmaster.
typedef void(*	gptp_port_cb_t) (int port, struct net_if *iface, void *user_data)
	Callback used while iterating over gPTP ports.

Functions
void	gptp_register_phase_dis_cb (struct gptp_phase_dis_cb *phase_dis, gptp_phase_dis_callback_t cb)
	Register a phase discontinuity callback.
void	gptp_unregister_phase_dis_cb (struct gptp_phase_dis_cb *phase_dis)
	Unregister a phase discontinuity callback.
void	gptp_call_phase_dis_cb (void)
	Call a phase discontinuity callback function.
int	gptp_event_capture (struct net_ptp_time *slave_time, bool *gm_present)
	Get gPTP time.
char *	gptp_sprint_clock_id (const uint8_t *clk_id, char *output, size_t output_len)
	Utility function to print clock id to a user supplied buffer.
void	gptp_foreach_port (gptp_port_cb_t cb, void *user_data)
	Go through all the gPTP ports and call callback for each of them.
struct gptp_domain *	gptp_get_domain (void)
	Get gPTP domain.
void	gptp_clk_src_time_invoke (struct gptp_clk_src_time_invoke_params *arg)
	This interface is used by the ClockSource entity to provide time to the ClockMaster entity of a time-aware system.
struct gptp_hdr *	gptp_get_hdr (struct net_pkt *pkt)
	Return pointer to gPTP packet header in network packet.

Detailed Description

generic Precision Time Protocol (gPTP) support

Typedef Documentation

gptp_phase_dis_callback_t

gptp_phase_dis_callback_t

#include <include/zephyr/net/gptp.h>

Define callback that is called after a phase discontinuity has been sent by the grandmaster.

Parameters

gm_identity	A pointer to first element of a ClockIdentity array. The size of the array is GPTP_CLOCK_ID_LEN.
time_base	A pointer to the value of timeBaseIndicator of the current grandmaster.
last_gm_ph_change	A pointer to the value of lastGmPhaseChange received from grandmaster.
last_gm_freq_change	A pointer to the value of lastGmFreqChange received from the grandmaster.

gptp_port_cb_t

gptp_port_cb_t

#include <include/zephyr/net/gptp.h>

Callback used while iterating over gPTP ports.

Parameters

port	Port number
iface	Pointer to network interface
user_data	A valid pointer to user data or NULL

Function Documentation

gptp_call_phase_dis_cb()

void gptp_call_phase_dis_cb

(

void

)

#include <include/zephyr/net/gptp.h>

Call a phase discontinuity callback function.

gptp_clk_src_time_invoke()

void gptp_clk_src_time_invoke

(

struct gptp_clk_src_time_invoke_params *

arg

)

#include <include/zephyr/net/gptp.h>

This interface is used by the ClockSource entity to provide time to the ClockMaster entity of a time-aware system.

Parameters

arg	Current state and parameters of the ClockSource entity.

gptp_event_capture()

int gptp_event_capture	(	struct net_ptp_time *	slave_time,
		bool *	gm_present
	)

#include <include/zephyr/net/gptp.h>

Get gPTP time.

Parameters

slave_time	A pointer to structure where timestamp will be saved.
gm_present	A pointer to a boolean where status of the presence of a grand master will be saved.

Returns

Error code. 0 if no error.

gptp_foreach_port()

void gptp_foreach_port	(	gptp_port_cb_t	cb,
		void *	user_data
	)

#include <include/zephyr/net/gptp.h>

Go through all the gPTP ports and call callback for each of them.

Parameters

cb	User-supplied callback function to call
user_data	User specified data

gptp_get_domain()

struct gptp_domain * gptp_get_domain

(

void

)

#include <include/zephyr/net/gptp.h>

Get gPTP domain.

This contains all the configuration / status of the gPTP domain.

Returns

Pointer to domain or NULL if not found.

gptp_get_hdr()

struct gptp_hdr * gptp_get_hdr

(

struct net_pkt *

pkt

)

#include <include/zephyr/net/gptp.h>

Return pointer to gPTP packet header in network packet.

Parameters

pkt	Network packet (received or sent)

Returns

Pointer to gPTP header.

gptp_register_phase_dis_cb()

void gptp_register_phase_dis_cb	(	struct gptp_phase_dis_cb *	phase_dis,
		gptp_phase_dis_callback_t	cb
	)

#include <include/zephyr/net/gptp.h>

Register a phase discontinuity callback.

Parameters

phase_dis	Caller specified handler for the callback.
cb	Callback to register.

gptp_sprint_clock_id()

char * gptp_sprint_clock_id	(	const uint8_t *	clk_id,
		char *	output,
		size_t	output_len
	)

#include <include/zephyr/net/gptp.h>

Utility function to print clock id to a user supplied buffer.

Parameters

clk_id	Clock id
output	Output buffer
output_len	Output buffer len

Returns

Pointer to output buffer

gptp_unregister_phase_dis_cb()

void gptp_unregister_phase_dis_cb

(

struct gptp_phase_dis_cb *

phase_dis

)

#include <include/zephyr/net/gptp.h>

Unregister a phase discontinuity callback.

Parameters

phase_dis

Caller specified handler for the callback.