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