152 lines
5.0 KiB
C
152 lines
5.0 KiB
C
/************************************************************************
|
|
* sched/clock_settime.c
|
|
*
|
|
* Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Included Files
|
|
************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
#include <nuttx/rtc.h>
|
|
|
|
#include <time.h>
|
|
#include <errno.h>
|
|
#include <debug.h>
|
|
#include "clock_internal.h"
|
|
|
|
/************************************************************************
|
|
* Definitions
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Private Type Declarations
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Private Function Prototypes
|
|
************************************************************************/
|
|
|
|
/**********************************************************************
|
|
* Public Constant Data
|
|
**********************************************************************/
|
|
|
|
/************************************************************************
|
|
* Public Variables
|
|
************************************************************************/
|
|
|
|
/**********************************************************************
|
|
* Private Variables
|
|
**********************************************************************/
|
|
|
|
/************************************************************************
|
|
* Private Functions
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Public Functions
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Function: clock_settime
|
|
*
|
|
* Description:
|
|
* Clock Functions based on POSIX APIs
|
|
*
|
|
************************************************************************/
|
|
|
|
int clock_settime(clockid_t clock_id, const struct timespec *tp)
|
|
{
|
|
int ret = OK;
|
|
|
|
sdbg("clock_id=%d\n", clock_id);
|
|
|
|
/* CLOCK_REALTIME - POSIX demands this to be present. This is the wall
|
|
* time clock.
|
|
*/
|
|
|
|
if (clock_id == CLOCK_REALTIME && tp)
|
|
{
|
|
#ifndef CONFIG_SYSTEM_UTC
|
|
/* Save the new base time. */
|
|
|
|
g_basetime.tv_sec = tp->tv_sec;
|
|
g_basetime.tv_nsec = tp->tv_nsec;
|
|
|
|
/* Get the elapsed time since power up (in milliseconds) biased
|
|
* as appropriate.
|
|
*/
|
|
|
|
g_tickbias = clock_systimer();
|
|
|
|
#else /* if CONFIG_SYSTEM_UTC=y */
|
|
|
|
/* We ignore everything below one second in time configuration */
|
|
|
|
#ifdef CONFIG_RTC
|
|
if (g_rtc_enabled)
|
|
{
|
|
up_rtc_settime( tp->tv_sec );
|
|
}
|
|
else
|
|
#endif
|
|
g_system_utc = tp->tv_sec;
|
|
|
|
#endif
|
|
|
|
sdbg("basetime=(%d,%d) tickbias=%d\n",
|
|
(int)g_basetime.tv_sec, (int)g_basetime.tv_nsec,
|
|
(int)g_tickbias);
|
|
}
|
|
|
|
/* CLOCK_ACTIVETIME is non-standard. Returns active UTC time, which is
|
|
* disabled during power down modes. Unit is 1 second.
|
|
*/
|
|
|
|
#ifdef CONFIG_RTC
|
|
else if (clock_id == CLOCK_ACTIVETIME && g_rtc_enabled && tp)
|
|
{
|
|
g_system_utc = tp->tv_sec;
|
|
}
|
|
#endif
|
|
|
|
else
|
|
{
|
|
sdbg("Returning ERROR\n");
|
|
*get_errno_ptr() = EINVAL;
|
|
ret = ERROR;
|
|
}
|
|
|
|
return ret;
|
|
}
|