109 lines
2.9 KiB
C
109 lines
2.9 KiB
C
/*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef HWCLOCK_CLOCK_H
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#define HWCLOCK_CLOCK_H
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/time.h>
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#include <time.h>
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#include "c.h"
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#include "debug.h"
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#include "nls.h"
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#define HWCLOCK_DEBUG_INIT (1 << 0)
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#define HWCLOCK_DEBUG_RANDOM_SLEEP (1 << 1)
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#define HWCLOCK_DEBUG_DELTA_VS_TARGET (1 << 2)
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#define HWCLOCK_DEBUG_ALL 0xFFFF
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UL_DEBUG_DECLARE_MASK(hwclock);
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#define DBG(m, x) __UL_DBG(hwclock, HWCLOCK_DEBUG_, m, x)
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#define ON_DBG(m, x) __UL_DBG_CALL(hwclock, HWCLOCK_DEBUG_, m, x)
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struct hwclock_control {
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char *date_opt;
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char *adj_file_name;
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double rtc_delay; /* --delay <seconds> */
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#if defined(__linux__) && defined(__alpha__)
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char *epoch_option;
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#endif
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#if defined(__linux__) || defined(__GNU__)
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char *rtc_dev_name;
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#endif
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#ifdef __linux__
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uint32_t param_idx; /* --param-index <n> */
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#endif
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char *param_get_option;
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char *param_set_option;
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bool hwaudit_on,
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adjust,
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show,
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hctosys,
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utc,
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systohc,
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#if defined(__linux__) && defined(__alpha__)
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getepoch,
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setepoch,
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#endif
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noadjfile,
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local_opt,
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directisa,
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testing,
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systz,
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predict,
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get,
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set,
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update,
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universal, /* will store hw_clock_is_utc() return value */
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vl_read,
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vl_clear,
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verbose;
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};
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struct clock_ops {
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char *interface_name;
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int (*get_permissions) (void);
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int (*read_hardware_clock) (const struct hwclock_control *ctl, struct tm * tm);
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int (*set_hardware_clock) (const struct hwclock_control *ctl, const struct tm * tm);
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int (*synchronize_to_clock_tick) (const struct hwclock_control *ctl);
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const char *(*get_device_path) (void);
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};
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extern const struct clock_ops *probe_for_cmos_clock(void);
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extern const struct clock_ops *probe_for_rtc_clock(const struct hwclock_control *ctl);
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/* rtc.c */
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#if defined(__linux__) && defined(__alpha__)
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extern int get_epoch_rtc(const struct hwclock_control *ctl, unsigned long *epoch);
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extern int set_epoch_rtc(const struct hwclock_control *ctl);
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#endif
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struct hwclock_param {
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int id;
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const char *name;
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const char *help;
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};
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extern const struct hwclock_param *get_hwclock_params(void);
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extern int get_param_rtc(const struct hwclock_control *ctl,
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const char *name, uint64_t *id, uint64_t *value);
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extern int set_param_rtc(const struct hwclock_control *ctl, const char *name);
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extern int rtc_vl_read(const struct hwclock_control *ctl);
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extern int rtc_vl_clear(const struct hwclock_control *ctl);
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extern void __attribute__((__noreturn__))
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hwclock_exit(const struct hwclock_control *ctl, int status);
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extern int parse_date(struct timespec *, char const *, struct timespec const *);
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#endif /* HWCLOCK_CLOCK_H */
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