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/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
* <phk@FreeBSD.org> wrote this file. As long as you retain this notice you
* can do whatever you want with this stuff. If we meet some day, and you think
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
* ----------------------------------------------------------------------------
*
* $Id$
*
* The is a FreeBSD protype version of the "draft-mogul-pps-api-02.txt"
* specification for Pulse Per Second timing interfaces.
*
*/
#ifndef _TIME_PPS_H_
#define _TIME_PPS_H_
#include <sys/timepps.h>
int time_pps_create(int filedes, pps_handle_t *handle);
int time_pps_destroy(pps_handle_t handle);
int time_pps_setparams(pps_handle_t handle, const pps_params_t *ppsparams);
int time_pps_getparams(pps_handle_t handle, pps_params_t *ppsparams);
int time_pps_getcap(pps_handle_t handle, int *mode);
int time_pps_fetch(pps_handle_t handle, pps_info_t *ppsinfobuf);
int time_pps_wait(pps_handle_t handle, const struct timespec *timeout,
pps_info_t *ppsinfobuf);
__inline int
time_pps_create(int filedes, pps_handle_t *handle)
{
int error;
*handle = -1;
error = ioctl(filedes, PPS_IOC_CREATE, 0);
if (error < 0)
return (-1);
*handle = filedes;
return (0);
}
__inline int
time_pps_destroy(pps_handle_t handle)
{
return (ioctl(handle, PPS_IOC_DESTROY, 0));
}
__inline int
time_pps_setparams(pps_handle_t handle, const pps_params_t *ppsparams)
{
return (ioctl(handle, PPS_IOC_SETPARAMS, ppsparams));
}
__inline int
time_pps_getparams(pps_handle_t handle, pps_params_t *ppsparams)
{
return (ioctl(handle, PPS_IOC_GETPARAMS, ppsparams));
}
__inline int
time_pps_getcap(pps_handle_t handle, int *mode)
{
return (ioctl(handle, PPS_IOC_GETCAP, mode));
}
__inline int
time_pps_fetch(pps_handle_t handle, pps_info_t *ppsinfobuf)
{
return (ioctl(handle, PPS_IOC_FETCH, ppsinfobuf));
}
__inline int
time_pps_wait(pps_handle_t handle, const struct timespec *timeout,
pps_info_t *ppsinfobuf)
{
int error;
struct pps_wait_args arg;
arg.timeout = *timeout;
error = ioctl(handle, PPS_IOC_WAIT, &arg);
*ppsinfobuf = arg.pps_info_buf;
return (error);
}
#endif /* !_TIME_PPS_H_ */
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