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/*
* Copyright (c) 2018 Intel Corporation.
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef ZEPHYR_INCLUDE_DRIVERS_PTP_CLOCK_H_
#define ZEPHYR_INCLUDE_DRIVERS_PTP_CLOCK_H_
#include <kernel.h>
#include <stdint.h>
#include <device.h>
#include <sys/util.h>
#include <net/ptp_time.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Name of the PTP clock driver */
#if !defined(PTP_CLOCK_NAME)
#define PTP_CLOCK_NAME "PTP_CLOCK"
#endif
__subsystem struct ptp_clock_driver_api {
int (*set)(const struct device *dev, struct net_ptp_time *tm);
int (*get)(const struct device *dev, struct net_ptp_time *tm);
int (*adjust)(const struct device *dev, int increment);
int (*rate_adjust)(const struct device *dev, float ratio);
};
/**
* @brief Set the time of the PTP clock.
*
* @param dev PTP clock device
* @param tm Time to set
*
* @return 0 if ok, <0 if error
*/
static inline int ptp_clock_set(const struct device *dev,
struct net_ptp_time *tm)
{
const struct ptp_clock_driver_api *api =
(const struct ptp_clock_driver_api *)dev->api;
return api->set(dev, tm);
}
/**
* @brief Get the time of the PTP clock.
*
* @param dev PTP clock device
* @param tm Where to store the current time.
*
* @return 0 if ok, <0 if error
*/
__syscall int ptp_clock_get(const struct device *dev, struct net_ptp_time *tm);
static inline int z_impl_ptp_clock_get(const struct device *dev,
struct net_ptp_time *tm)
{
const struct ptp_clock_driver_api *api =
(const struct ptp_clock_driver_api *)dev->api;
return api->get(dev, tm);
}
/**
* @brief Adjust the PTP clock time.
*
* @param dev PTP clock device
* @param increment Increment of the clock in nanoseconds
*
* @return 0 if ok, <0 if error
*/
static inline int ptp_clock_adjust(const struct device *dev, int increment)
{
const struct ptp_clock_driver_api *api =
(const struct ptp_clock_driver_api *)dev->api;
return api->adjust(dev, increment);
}
/**
* @brief Adjust the PTP clock time change rate when compared to its neighbor.
*
* @param dev PTP clock device
* @param rate Rate of the clock time change
*
* @return 0 if ok, <0 if error
*/
static inline int ptp_clock_rate_adjust(const struct device *dev, float rate)
{
const struct ptp_clock_driver_api *api =
(const struct ptp_clock_driver_api *)dev->api;
return api->rate_adjust(dev, rate);
}
#ifdef __cplusplus
}
#endif
#include <syscalls/ptp_clock.h>
#endif /* ZEPHYR_INCLUDE_DRIVERS_PTP_CLOCK_H_ */