diff options
Diffstat (limited to 'nuttx/sched/clock_gettime.c')
| -rw-r--r-- | nuttx/sched/clock_gettime.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/nuttx/sched/clock_gettime.c b/nuttx/sched/clock_gettime.c deleted file mode 100644 index d6772dada..000000000 --- a/nuttx/sched/clock_gettime.c +++ /dev/null @@ -1,180 +0,0 @@ -/************************************************************************ - * sched/clock_gettime.c - * - * Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * 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 <stdint.h> -#include <time.h> -#include <assert.h> -#include <errno.h> -#include <debug.h> - -#include <arch/irq.h> - -#include "clock_internal.h" - -/************************************************************************ - * Definitions - ************************************************************************/ - -/************************************************************************ - * Private Type Declarations - ************************************************************************/ - -/************************************************************************ - * Private Function Prototypes - ************************************************************************/ - -/********************************************************************** - * Public Constant Data - **********************************************************************/ - -/************************************************************************ - * Public Variables - ************************************************************************/ - -/********************************************************************** - * Private Variables - **********************************************************************/ - -/************************************************************************ - * Private Functions - ************************************************************************/ - -/************************************************************************ - * Public Functions - ************************************************************************/ - -/************************************************************************ - * Name: clock_gettime - * - * Description: - * Clock Functions based on POSIX APIs - * - ************************************************************************/ - -int clock_gettime(clockid_t clock_id, struct timespec *tp) -{ -#ifdef CONFIG_SYSTEM_TIME64 - uint64_t msecs; - uint64_t secs; - uint64_t nsecs; -#else - uint32_t msecs; - uint32_t secs; - uint32_t nsecs; -#endif - int ret = OK; - - sdbg("clock_id=%d\n", clock_id); - DEBUGASSERT(tp != NULL); - - /* CLOCK_REALTIME - POSIX demands this to be present. This is the wall - * time clock. - */ - -#ifdef CONFIG_RTC - if (clock_id == CLOCK_REALTIME || clock_id == CLOCK_ACTIVETIME) -#else - if (clock_id == CLOCK_REALTIME) -#endif - { - /* Do we have a high-resolution RTC that can provie us with the time? */ - -#ifdef CONFIG_RTC_HIRES - if (g_rtc_enabled && clock_id != CLOCK_ACTIVETIME) - { - /* Yes.. Get the hi-resolution time from the RTC */ - - ret = up_rtc_gettime(tp); - } - else -#endif - { - /* Get the elapsed time since power up (in milliseconds) biased - * as appropriate. - */ - - msecs = MSEC_PER_TICK * (g_system_timer - g_tickbias); - - sdbg("msecs = %d g_tickbias=%d\n", - (int)msecs, (int)g_tickbias); - - /* Get the elapsed time in seconds and nanoseconds. */ - - secs = msecs / MSEC_PER_SEC; - nsecs = (msecs - (secs * MSEC_PER_SEC)) * NSEC_PER_MSEC; - - sdbg("secs = %d + %d nsecs = %d + %d\n", - (int)msecs, (int)g_basetime.tv_sec, - (int)nsecs, (int)g_basetime.tv_nsec); - - /* Add the base time to this. */ - - secs += (uint32_t)g_basetime.tv_sec; - nsecs += (uint32_t)g_basetime.tv_nsec; - - /* Handle carry to seconds. */ - - if (nsecs > NSEC_PER_SEC) - { - uint32_t dwCarrySecs = nsecs / NSEC_PER_SEC; - secs += dwCarrySecs; - nsecs -= (dwCarrySecs * NSEC_PER_SEC); - } - - /* And return the result to the caller. */ - - tp->tv_sec = (time_t)secs; - tp->tv_nsec = (long)nsecs; - } - - sdbg("Returning tp=(%d,%d)\n", (int)tp->tv_sec, (int)tp->tv_nsec); - } - else - { - sdbg("Returning ERROR\n"); - - errno = EINVAL; - ret = ERROR; - } - - return ret; -} |