SRC += cli.c cli_readline.c command.c command_tbl.c
SRC += cmd_help.c cmd_date.c cmd_mem.c cmd_boot.c cmd_gpio.c cmd_misc.c
SRC += cmd_sd.c cmd_fat.c
-SRC += env.c xmalloc.c date.c con-utils.c print-utils.c getopt-min.c
+SRC += env.c xmalloc.c con-utils.c print-utils.c getopt-min.c
SRC += timer.c serial.c i2c.c pcf8583.c mmc.c
SRC += background.c z180-serv.c z80-if.c gpio.c
SRC += $(FATFS) $(TOP)/fatfs/src/option/unicode.c
+#TODO: time lib
+SRC += ../time/asctime_r.c ../time/gmtime_r.c ../time/mk_gmtime.c
+SRC += ../time/print_lz.c ../time/isLeap.c
+
SRC_Z = ../z180/hdrom.c
#TARGETS = $(PROG).elf
/*
* RTC, Date & Time support: get and set date & time
*/
-#include <common.h>
+#include "common.h"
#include <string.h>
-#include <command.h>
-#include <rtc.h>
-#include <i2c.h>
+#include "time.h"
+#include "rtc.h"
+#include "command.h"
-static const FLASH char * const FLASH weekdays[] = {
- FSTR("Mon"),
- FSTR("Tues"),
- FSTR("Wednes"),
- FSTR("Thurs"),
- FSTR("Fri"),
- FSTR("Satur"),
- FSTR("Sun")
-};
-
-int mk_date (const char *, struct rtc_time *);
-
-command_ret_t do_date(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
-{
- struct rtc_time tm;
- int rcode = CMD_RET_SUCCESS;
-
- (void) cmdtp; (void) flag;
-
- switch (argc) {
- case 2: /* set date & time */
- /* initialize tm with current time */
- rcode = rtc_get (&tm);
-
- if(!rcode) {
- /* insert new date & time */
- if (mk_date (argv[1], &tm) != 0) {
- my_puts_P(PSTR("## Bad date format\n"));
- break;
- }
- /* and write to RTC */
- rcode = rtc_set (&tm);
- if(rcode)
- my_puts_P(PSTR("## Set date failed\n"));
- } else {
- my_puts_P(PSTR("## Get date failed\n"));
- }
- /* FALL TROUGH */
- case 1: /* get date & time */
- rcode = rtc_get (&tm);
-
- if (rcode) {
- my_puts_P(PSTR("## Get date failed\n"));
- break;
- }
- printf_P(PSTR("Date: %4d-%02d-%02d ("),
- tm.tm_year, tm.tm_mon, tm.tm_mday);
- my_puts_P( (tm.tm_wday<0 || tm.tm_wday>6) ?
- PSTR("unknown ") : weekdays[tm.tm_wday]);
- printf_P(PSTR("day) Time: %2d:%02d:%02d\n"),
- tm.tm_hour, tm.tm_min, tm.tm_sec);
- break;
-
- default:
- rcode = CMD_RET_USAGE;
- }
-
- return rcode;
-}
-
/*
* simple conversion of two-digit string with error checking
*/
* Some basic checking for valid values is done, but this will not catch
* all possible error conditions.
*/
-int mk_date (const char *datestr, struct rtc_time *tmp)
+int mk_date (const char *datestr, struct tm *tmp)
{
int len, val;
char *ptr;
tmp->tm_sec = 0;
}
- if (len == 12) { /* MMDDhhmmCCYY */
+ if (len == 12) { /* MMDDhhmmCCYY */
int year, century;
if (cnvrt2 (datestr+ 8, ¢ury) ||
cnvrt2 (datestr+10, &year) ) {
return (-1);
}
- tmp->tm_year = 100 * century + year;
+ tmp->tm_year = 100 * century + year - 1900;
} else if (len == 10) { /* MMDDhhmmYY */
int year, century;
- century = tmp->tm_year / 100;
+ century = (tmp->tm_year + 1900) / 100;
if (cnvrt2 (datestr+ 8, &year))
return (-1);
- tmp->tm_year = 100 * century + year;
+ tmp->tm_year = 100 * century + year -1900;
}
switch (len) {
- case 8: /* MMDDhhmm */
+ case 8: /* MMDDhhmm */
/* fall thru */
- case 10: /* MMDDhhmmYY */
+ case 10: /* MMDDhhmmYY */
/* fall thru */
- case 12: /* MMDDhhmmCCYY */
+ case 12: /* MMDDhhmmCCYY */
if (cnvrt2 (datestr+0, &val) ||
val > 12) {
break;
}
- tmp->tm_mon = val;
+ tmp->tm_mon = val - 1;
if (cnvrt2 (datestr+2, &val) ||
- val > ((tmp->tm_mon==2) ? 29 : 31)) {
+ val > ((tmp->tm_mon==2-1) ? 29 : 31)) {
break;
}
tmp->tm_mday = val;
}
tmp->tm_min = val;
- /* calculate day of week */
- GregorianDay (tmp);
-
return (0);
default:
break;
return (-1);
}
+
+command_ret_t do_date(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct tm t;
+ char buf[30];
+ int rcode = CMD_RET_SUCCESS;
+
+ (void) cmdtp; (void) flag;
+
+ switch (argc) {
+ case 2: /* set date & time */
+ /* initialize t with current time */
+ rcode = rtc_get (&t);
+
+ if(!rcode) {
+ /* insert new date & time */
+ if (mk_date (argv[1], &t) != 0) {
+ my_puts_P(PSTR("## Bad date format\n"));
+ break;
+ }
+
+ time_t time;
+ time = mk_gmtime(&t);
+ gmtime_r(&time, &t);
+
+ /* and write to RTC */
+ rcode = rtc_set (&t);
+ if(rcode)
+ my_puts_P(PSTR("## Set date failed\n"));
+ } else {
+ my_puts_P(PSTR("## Get date failed\n"));
+ }
+ /* FALL TROUGH */
+ case 1: /* get date & time */
+ rcode = rtc_get (&t);
+
+ if (rcode) {
+ my_puts_P(PSTR("## Get date failed\n"));
+ break;
+ }
+ asctime_r(&t, buf);
+ printf_P(PSTR("%s\n"), buf);
+ break;
+
+ default:
+ rcode = CMD_RET_USAGE;
+ }
+
+ return rcode;
+}
+++ /dev/null
-/*
- * (C) Copyright 2001
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-/*
- * Date & Time support for RTC
- */
-
-#include <common.h>
-#include <command.h>
-#include <rtc.h>
-
-
-#define FEBRUARY 2
-#define STARTOFTIME 1970
-#define SECDAY 86400L
-#define SECYR (SECDAY * 365)
-#define leapyear(year) ((year) % 4 == 0)
-#define days_in_year(a) (leapyear(a) ? 366 : 365)
-#define days_in_month(a) (month_days[(a) - 1])
-
-
-static const FLASH int MonthOffset[] = {
- 0,31,59,90,120,151,181,212,243,273,304,334
-};
-
-/*
- * This only works for the Gregorian calendar - i.e. after 1752 (in the UK)
- */
-void GregorianDay(struct rtc_time * tm)
-{
- int leapsToDate;
- int lastYear;
- int day;
-
- lastYear=tm->tm_year-1;
-
- /*
- * Number of leap corrections to apply up to end of last year
- */
- leapsToDate = lastYear/4 - lastYear/100 + lastYear/400;
-
- /*
- * This year is a leap year if it is divisible by 4 except when it is
- * divisible by 100 unless it is divisible by 400
- *
- * e.g. 1904 was a leap year, 1900 was not, 1996 is, and 2000 will be
- */
- if((tm->tm_year%4==0) &&
- ((tm->tm_year%100!=0) || (tm->tm_year%400==0)) &&
- (tm->tm_mon>2)) {
- /*
- * We are past Feb. 29 in a leap year
- */
- day=1;
- } else {
- day=0;
- }
-
- day += lastYear*365 + leapsToDate + MonthOffset[tm->tm_mon-1] + tm->tm_mday;
-
- tm->tm_wday=day%7;
-}
-
-void to_tm(unsigned long tim, struct rtc_time * tm)
-{
- char month_days[12] = {31,28,31,30,31,30,31,31,30,31,30,31};
- register int i;
- register long hms, day;
-
- day = tim / SECDAY;
- hms = tim % SECDAY;
-
- /* Hours, minutes, seconds are easy */
- tm->tm_hour = hms / 3600;
- tm->tm_min = (hms % 3600) / 60;
- tm->tm_sec = (hms % 3600) % 60;
-
- /* Number of years in days */
- for (i = STARTOFTIME; day >= days_in_year(i); i++) {
- day -= days_in_year(i);
- }
- tm->tm_year = i;
-
- /* Number of months in days left */
- if (leapyear(tm->tm_year)) {
- days_in_month(FEBRUARY) = 29;
- }
- for (i = 1; day >= days_in_month(i); i++) {
- day -= days_in_month(i);
- }
- days_in_month(FEBRUARY) = 28;
- tm->tm_mon = i;
-
- /* Days are what is left over (+1) from all that. */
- tm->tm_mday = day + 1;
-
- /*
- * Determine the day of week
- */
- GregorianDay(tm);
-}
-
-/* Converts Gregorian date to seconds since 1970-01-01 00:00:00.
- * Assumes input in normal date format, i.e. 1980-12-31 23:59:59
- * => year=1980, mon=12, day=31, hour=23, min=59, sec=59.
- *
- * [For the Julian calendar (which was used in Russia before 1917,
- * Britain & colonies before 1752, anywhere else before 1582,
- * and is still in use by some communities) leave out the
- * -year/100+year/400 terms, and add 10.]
- *
- * This algorithm was first published by Gauss (I think).
- *
- * WARNING: this function will overflow on 2106-02-07 06:28:16 on
- * machines were long is 32-bit! (However, as time_t is signed, we
- * will already get problems at other places on 2038-01-19 03:14:08)
- */
-unsigned long
-mktime (unsigned int year, unsigned int mon,
- unsigned int day, unsigned int hour,
- unsigned int min, unsigned int sec)
-{
- if (0 >= (int) (mon -= 2)) { /* 1..12 -> 11,12,1..10 */
- mon += 12; /* Puts Feb last since it has leap day */
- year -= 1;
- }
-
- return (((
- (unsigned long) (year/4 - year/100 + year/400 + 367*mon/12 + day) +
- year*365 - 719499
- )*24 + hour /* now have hours */
- )*60 + min /* now have minutes */
- )*60 + sec; /* finally seconds */
-}
#include "common.h"
#include <stdlib.h>
-#include "debug.h"
-#include "command.h"
+#include "time.h"
#include "rtc.h"
#include "i2c.h"
+#include "command.h"
+#include "debug.h"
#define DEBUG_RTC 0
static uint8_t bin2bcd (uint_fast8_t val)
{
div_t d = div(val, 10);
-
+
return (d.quot << 4) | d.rem;
}
-int rtc_get (struct rtc_time *tmp)
+int rtc_get (struct tm *tmp)
{
int rel = 0;
uint8_t rtcbuf[NR_OF_REGS];
- uint16_t year;
-
+ int16_t year;
+
i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0, 1, rtcbuf, NR_OF_REGS);
i2c_read(CONFIG_SYS_I2C_RTC_ADDR, 0x10, 1, (uint8_t *) &year, 2);
tmp->tm_min = bcd2bin (rtcbuf[REG_MIN] & 0x7F);
tmp->tm_hour = bcd2bin (rtcbuf[REG_HOUR] & 0x3F);
tmp->tm_mday = bcd2bin (rtcbuf[REG_YRDATE] & 0x3F);
- tmp->tm_mon = bcd2bin (rtcbuf[REG_WDMON] & 0x1F);
+ tmp->tm_mon = bcd2bin (rtcbuf[REG_WDMON] & 0x1F) - 1;
while (year%4 < (rtcbuf[REG_YRDATE]>>6)) {
year++;
/* TODO: update RTC ram */
}
- tmp->tm_year = year;
+ tmp->tm_year = year;
tmp->tm_wday = rtcbuf[REG_WDMON] >> 5;
tmp->tm_yday = 0;
tmp->tm_isdst= 0;
return rel;
}
-int rtc_set (struct rtc_time *tmp)
+int rtc_set (struct tm *tmp)
{
uint8_t rtcbuf[NR_OF_REGS];
rtcbuf[REG_CS] = 0x84;
rtcbuf[REG_CSEC] = 0x00;
- rtcbuf[REG_WDMON ] = bin2bcd(tmp->tm_mon) | ((tmp->tm_wday) << 5);
+ rtcbuf[REG_WDMON ] = (bin2bcd(tmp->tm_mon) + 1) | ((tmp->tm_wday) << 5);
rtcbuf[REG_YRDATE] = ((tmp->tm_year % 4) << 6) | bin2bcd(tmp->tm_mday);
rtcbuf[REG_HOUR ] = bin2bcd(tmp->tm_hour);
rtcbuf[REG_MIN ] = bin2bcd(tmp->tm_min);
-/*
- * (C) Copyright 2001
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
/*
* Generic RTC interface.
*/
#ifndef _RTC_H_
#define _RTC_H_
-
-/*
- * The struct used to pass data from the generic interface code to
- * the hardware dependend low-level code ande vice versa. Identical
- * to struct rtc_time used by the Linux kernel.
- *
- * Note that there are small but significant differences to the
- * common "struct time":
- *
- * struct time: struct rtc_time:
- * tm_mon 0 ... 11 1 ... 12
- * tm_year years since 1900 years since 0
- */
-
-struct rtc_time {
- int tm_sec;
- int tm_min;
- int tm_hour;
- int tm_mday;
- int tm_mon;
- int tm_year;
- int tm_wday;
- int tm_yday;
- int tm_isdst;
-};
-
-int rtc_get (struct rtc_time *);
-int rtc_set (struct rtc_time *);
-
-void GregorianDay (struct rtc_time *);
-void to_tm (unsigned long, struct rtc_time *);
-unsigned long mktime (unsigned int, unsigned int, unsigned int,
- unsigned int, unsigned int, unsigned int);
+int rtc_get (struct tm *);
+int rtc_set (struct tm *);
#endif /* _RTC_H_ */
--- /dev/null
+../time/time.h
\ No newline at end of file
--- /dev/null
+ # (C)2012 Michael Duane Rice All rights reserved.
+ #
+ # Redistribution and use in source and binary forms, with or without
+ # modification, are permitted provided that the following conditions are
+ # met:
+ #
+ # Redistributions of source code must retain the above copyright notice, this
+ # list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ # nor the names of 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.
+
+ # $Id: Files.am 2391 2013-05-03 20:53:06Z swfltek $
+
+time_a_c_sources = \
+ asc_store.c \
+ asctime.c \
+ asctime_r.c \
+ ctime.c \
+ ctime_r.c \
+ daylight_seconds.c \
+ difftime.c \
+ dst_pointer.c \
+ equation_of_time.c \
+ fatfs_time.c \
+ geo_location.c \
+ gm_sidereal.c \
+ gmtime.c \
+ gmtime_r.c \
+ isLeap.c \
+ isotime.c \
+ iso_week_date.c \
+ iso_week_date_r.c \
+ isotime_r.c \
+ lm_sidereal.c \
+ localtime.c \
+ localtime_r.c \
+ mk_gmtime.c \
+ mktime.c \
+ month_length.c \
+ moon_phase.c \
+ print_lz.c \
+ set_dst.c \
+ set_position.c \
+ set_system_time.c \
+ set_zone.c \
+ solar_declination.c \
+ solar_noon.c \
+ strftime.c \
+ sun_rise.c \
+ sun_set.c \
+ system_time.c \
+ time.c \
+ tm_store.c \
+ utc_offset.c \
+ week_of_month.c \
+ week_of_year.c
+
+time_a_asm_sources = \
+ system_tick.S
+
+time_a_extra_dist = \
+ ephemera_common.h
--- /dev/null
+# Makefile.in generated by automake 1.14 from Makefile.am.
+# libc/time/Makefile. Generated from Makefile.in by configure.
+
+# Copyright (C) 1994-2013 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+
+
+# ©2012 Michael Duane Rice All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# Redistributions of source code must retain the above copyright notice, this
+# list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+# nor the names of 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.
+#
+
+# $Id: Makefile.am 2379 2013-04-30 16:42:26Z joerg_wunsch $
+
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+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_CC = @ac_ct_CC@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
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+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+builddir = @builddir@
+datadir = @datadir@
+datarootdir = @datarootdir@
+docdir = @docdir@
+dvidir = @dvidir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
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+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+time_a_c_sources = \
+ asc_store.c \
+ asctime.c \
+ asctime_r.c \
+ ctime.c \
+ ctime_r.c \
+ daylight_seconds.c \
+ difftime.c \
+ dst_pointer.c \
+ equation_of_time.c \
+ fatfs_time.c \
+ geo_location.c \
+ gm_sidereal.c \
+ gmtime.c \
+ gmtime_r.c \
+ isLeap.c \
+ isotime.c \
+ iso_week_date.c \
+ iso_week_date_r.c \
+ isotime_r.c \
+ lm_sidereal.c \
+ localtime.c \
+ localtime_r.c \
+ mk_gmtime.c \
+ mktime.c \
+ month_length.c \
+ moon_phase.c \
+ print_lz.c \
+ set_dst.c \
+ set_position.c \
+ set_system_time.c \
+ set_zone.c \
+ solar_declination.c \
+ solar_noon.c \
+ strftime.c \
+ sun_rise.c \
+ sun_set.c \
+ system_time.c \
+ time.c \
+ tm_store.c \
+ utc_offset.c \
+ week_of_month.c \
+ week_of_year.c
+
+time_a_asm_sources = \
+ system_tick.S
+
+time_a_extra_dist = \
+ ephemera_common.h
+
+EXTRA_DIST = \
+ $(time_a_c_sources) \
+ $(time_a_asm_sources) \
+ $(time_a_extra_dist)
+
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in: $(srcdir)/Makefile.am $(top_srcdir)/libc/time/Files.am $(am__configure_deps)
+ @for dep in $?; do \
+ case '$(am__configure_deps)' in \
+ *$$dep*) \
+ ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+ && { if test -f $@; then exit 0; else break; fi; }; \
+ exit 1;; \
+ esac; \
+ done; \
+ echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign libc/time/Makefile'; \
+ $(am__cd) $(top_srcdir) && \
+ $(AUTOMAKE) --foreign libc/time/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+ @case '$?' in \
+ *config.status*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+ *) \
+ echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
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+ esac;
+$(top_srcdir)/libc/time/Files.am:
+
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+
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+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+
+ctags CTAGS:
+
+cscope cscopelist:
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+ sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+ sort -u` ;; \
+ esac; \
+ for file in $$dist_files; do \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+ else \
+ test -f "$(distdir)/$$file" \
+ || cp -p $$d/$$file "$(distdir)/$$file" \
+ || exit 1; \
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+ done
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+
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+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ install; \
+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
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+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
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+
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+ -rm -f Makefile
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+
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+
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+
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+
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+ -rm -f Makefile
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+
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+
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+
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+ ctags-am distclean distclean-generic distdir dvi dvi-am html \
+ html-am info info-am install install-am install-data \
+ install-data-am install-dvi install-dvi-am install-exec \
+ install-exec-am install-html install-html-am install-info \
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+ installcheck-am installdirs maintainer-clean \
+ maintainer-clean-generic mostlyclean mostlyclean-generic pdf \
+ pdf-am ps ps-am tags-am uninstall uninstall-am
+
+ # (C)2012 Michael Duane Rice All rights reserved.
+ #
+ # Redistribution and use in source and binary forms, with or without
+ # modification, are permitted provided that the following conditions are
+ # met:
+ #
+ # Redistributions of source code must retain the above copyright notice, this
+ # list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ # nor the names of 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.
+
+ # $Id: Files.am 2391 2013-05-03 20:53:06Z swfltek $
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+# ©2012 Michael Duane Rice All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# Redistributions of source code must retain the above copyright notice, this
+# list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+# nor the names of 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.
+#
+
+# $Id: Rules.am 2321 2013-04-02 00:12:48Z swfltek $
+
+include $(top_srcdir)/libc/time/Files.am
--- /dev/null
+/*
+ * (c)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: asc_store.c 2379 2013-04-30 16:42:26Z joerg_wunsch $ */
+
+/*
+ Private allocation, shared between asctime() and isotime()
+*/
+
+#include <time.h>
+
+char __store[26];
+
+char *__asc_store = __store;
--- /dev/null
+/*
+ * (c)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: asctime.c 2318 2013-03-30 11:59:28Z swfltek $ */
+
+/*
+ Standard asctime(), we simply punt to the re-entrant version.
+*/
+
+#include <time.h>
+
+extern char *__asc_store;
+
+char *
+asctime(const struct tm * timeptr)
+{
+ asctime_r(timeptr, __asc_store);
+ return __asc_store;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: asctime_r.c 2357 2013-04-21 16:25:30Z swfltek $ */
+
+/*
+ Re-entrant version of asctime().
+
+*/
+#include <time.h>
+#include <stdlib.h>
+
+#ifdef __MEMX
+const __memx char ascmonths[] = "JanFebMarAprMayJunJulAugSepOctNovDec";
+const __memx char ascdays[] = "SunMonTueWedThuFriSat";
+#else
+const char ascmonths[] = "JanFebMarAprMayJunJulAugSepOctNovDec";
+const char ascdays[] = "SunMonTueWedThuFriSat";
+#endif
+
+extern void __print_lz(int , char *, char );
+
+void
+asctime_r(const struct tm * timeptr, char *buffer)
+{
+ unsigned char i, m, d;
+ div_t result;
+
+ d = timeptr->tm_wday * 3;
+ m = timeptr->tm_mon * 3;
+ for (i = 0; i < 3; i++) {
+ buffer[i] = ascdays[d++];
+ buffer[i+4] = ascmonths[m++];
+ }
+ buffer[3]=buffer[7]=' ';
+ buffer += 8;
+
+ __print_lz(timeptr->tm_mday,buffer,' ');
+ buffer += 3;
+
+ __print_lz(timeptr->tm_hour,buffer,':');
+ buffer += 3;
+
+ __print_lz(timeptr->tm_min,buffer,':');
+ buffer += 3;
+
+ __print_lz(timeptr->tm_sec,buffer,' ');
+ buffer += 3;
+
+ result = div(timeptr->tm_year + 1900 , 100);
+
+ __print_lz(result.quot,buffer,' ');
+ buffer += 2;
+
+ __print_lz(result.rem,buffer,0);
+
+}
--- /dev/null
+/*
+ * ©2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: ctime.c 2318 2013-03-30 11:59:28Z swfltek $ */
+
+/*
+ Standard ctime(). We have to break down the time stamp, print it into our
+ private buffer, and return the buffer.
+*/
+#include <time.h>
+
+extern char *__asc_store;
+
+char *
+ctime(const time_t * timeptr)
+{
+ struct tm calendar;
+
+ localtime_r(timeptr, &calendar);
+ asctime_r(&calendar, __asc_store);
+ return __asc_store;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: ctime_r.c 2315 2013-03-29 21:24:31Z joerg_wunsch $ */
+
+/*
+ Re entrant version of ctime()
+*/
+#include <time.h>
+
+void
+ctime_r(const time_t * timeptr, char *buffer)
+{
+ struct tm calendar;
+
+ localtime_r(timeptr, &calendar);
+ asctime_r(&calendar, buffer);
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: daylight_seconds.c 2369 2013-04-28 14:19:35Z swfltek $ */
+
+/*
+ Determine the amount of time the sun is above the horizon. At high latitudes, around the
+ solstices, this can be zero or greater than ONE_DAY.
+
+*/
+
+#include <time.h>
+#include <math.h>
+
+extern long __latitude;
+
+long
+daylight_seconds(const time_t * timer)
+{
+ double l, d;
+ long n;
+
+ /* convert latitude to radians */
+ l = __latitude / 206264.806;
+
+ d = -solar_declination(timer);
+
+ /* partial 'Sunrise Equation' */
+ d = tan(l) * tan(d);
+
+ /* magnitude of d may exceed 1.0 at near solstices */
+ if (d > 1.0)
+ d = 1.0;
+
+ if (d < -1.0)
+ d = -1.0;
+
+ /* derive hour angle */
+ d = acos(d);
+
+ /* but for atmospheric refraction, this would be d /= M_PI */
+ d /= 3.112505;
+
+ n = ONE_DAY * d;
+
+ return n;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: difftime.c 2318 2013-03-30 11:59:28Z swfltek $ */
+
+/*
+ The C90 standard specifies this returns a 'double. Since we do not have a true double,
+ we return a work alike type.
+*/
+#include <time.h>
+
+int32_t
+difftime(time_t t1, time_t t2)
+{
+ return t1 - t2;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: dst_pointer.c 2379 2013-04-30 16:42:26Z joerg_wunsch $ */
+
+#include <inttypes.h>
+#include <time.h>
+
+int (*__dst_ptr) (const time_t *, int32_t *);
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: ephemera_common.h 2345 2013-04-11 23:58:48Z swfltek $ */
+
+#ifndef EPHEMERA_PRIVATE_H
+#define EPHEMERA_PRIVATE_H
+
+#define TROP_YEAR 31556925
+#define ANOM_YEAR 31558433
+#define INCLINATION 0.409105176667471 /* Earths axial tilt at the epoch */
+#define PERIHELION 31316400 /* perihelion of 1999, 03 jan 13:00 UTC */
+#define SOLSTICE 836160 /* winter solstice of 1999, 22 Dec 07:44 UTC */
+#define TWO_PI 6.283185307179586
+#define TROP_CYCLE 5022440.6025
+#define ANOM_CYCLE 5022680.6082
+#define DELTA_V 0.03342044 /* 2x orbital eccentricity */
+
+#endif
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: equation_of_time.c 2369 2013-04-28 14:19:35Z swfltek $ */
+
+/*
+ The so called Equation of Time.
+
+ The eccentricity of Earths orbit contributes about 7.7 minutes of variation to the result. It
+ has a period of 1 anomalous year, with zeroes at perihelion and aphelion.
+
+ The tilt of Earths rotational axis (obliquity) contributes about 9.9 minutes of variation. It
+ has a period of 1/2 tropical year, with zeroes at solstices and equinoxes. The time of Earths
+ arrival at these events is influenced by the eccentricity, which causes it to progress along its
+ orbital path faster as it approaches perihelion, imposing a 'modulation' on the tropical phase.
+
+ The algorithm employed computes the orbital position with respect to perihelion, deriving
+ from that a 'velocity correction factor'. The orbital position with respect to the winter solstice
+ is then computed, as modulated by that factor. The individual contributions of the obliquity and the
+ eccentricity components are then summed, and returned as an integer value in seconds.
+
+*/
+
+#include <time.h>
+#include <math.h>
+#include "ephemera_common.h"
+
+int
+equation_of_time(const time_t * timer)
+{
+ int32_t s, p;
+ double pf, sf, dV;
+
+ /* compute orbital position relative to perihelion */
+ p = *timer % ANOM_YEAR;
+ p += PERIHELION;
+ pf = p;
+ pf /= ANOM_CYCLE;
+ pf = sin(pf);
+
+ /* Derive a velocity correction factor from the perihelion angle */
+ dV = pf * DELTA_V;
+
+ /* compute approximate position relative to solstice */
+ s = *timer % TROP_YEAR;
+ s += SOLSTICE;
+ s *= 2;
+ sf = s;
+ sf /= TROP_CYCLE;
+
+ /* modulate to derive actual position */
+ sf += dV;
+ sf = sin(sf);
+
+ /* compute contributions */
+ sf *= 592.2;
+ pf *= 459.6;
+ s = pf + sf;
+ return -s;
+
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: fatfs_time.c 2365 2013-04-27 15:32:59Z swfltek $ */
+
+/*
+ Return a value suitable for use as a file system time stamp.
+*/
+
+#include <time.h>
+
+uint32_t
+fat_time(const struct tm * timeptr)
+{
+ uint32_t ret;
+ uint32_t n;
+
+ n = timeptr->tm_year - 80;
+ n <<= 25;
+ ret = n;
+
+ n = timeptr->tm_mon + 1;
+ n <<= 21;
+ ret |= n;
+
+ n = timeptr->tm_mday;
+ n <<= 16;
+ ret |= n;
+
+ n = timeptr->tm_hour;
+ n <<= 11;
+ ret |= n;
+
+ n = timeptr->tm_min;
+ n <<= 5;
+ ret |= n;
+
+ ret |= (timeptr->tm_sec / 2);
+
+ return ret;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: geo_location.c 2379 2013-04-30 16:42:26Z joerg_wunsch $ */
+
+long __latitude;
+long __longitude;
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: gm_sidereal.c 2369 2013-04-28 14:19:35Z swfltek $ */
+
+/*
+ Greenwich Mean Sidereal Time. A sidereal second is somewhat shorter than a standard second,
+ about 1.002737909350795 sidereal seconds per standard second.
+
+ We resort to fixed point math due to the insufficient resolution of a 'double', using...
+
+ timestamp * ( 1.002737909350795 << 31 )
+ --------------------------------------- + Te
+ 1 << 31
+
+ Where Te is the sidereal time at the epoch.
+
+*/
+
+#include <time.h>
+#include <stdint.h>
+
+unsigned long
+gm_sidereal(const time_t * timer)
+{
+ uint64_t tmp;
+
+ tmp = *timer;
+ tmp *= 0x8059B740;
+ tmp /= 0x80000000;
+ tmp += (uint64_t) 23991;
+
+ tmp %= ONE_DAY;
+ return tmp;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: gmtime.c 2318 2013-03-30 11:59:28Z swfltek $ */
+
+/*
+ Standard gmtime(). We convert binary time into calendar time in our private struct tm object,
+ returning that object.
+*/
+
+#include <time.h>
+
+extern struct tm __tm_store;
+
+struct tm *
+gmtime(const time_t * timeptr)
+{
+ gmtime_r(timeptr, &__tm_store);
+ return &__tm_store;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: gmtime_r.c 2369 2013-04-28 14:19:35Z swfltek $ */
+
+/* Re entrant version of gmtime(). */
+
+#include <time.h>
+#include <stdlib.h>
+#include <inttypes.h>
+
+void
+gmtime_r(const time_t * timer, struct tm * timeptr)
+{
+ int32_t fract;
+ ldiv_t lresult;
+ div_t result;
+ uint16_t days, n, leapyear, years;
+
+ /* break down timer into whole and fractional parts of 1 day */
+ days = *timer / 86400UL;
+ fract = *timer % 86400UL;
+
+ /*
+ Extract hour, minute, and second from the fractional day
+ */
+ lresult = ldiv(fract, 60L);
+ timeptr->tm_sec = lresult.rem;
+ result = div(lresult.quot, 60);
+ timeptr->tm_min = result.rem;
+ timeptr->tm_hour = result.quot;
+
+ /* Determine day of week ( the epoch was a Saturday ) */
+ n = days + SATURDAY;
+ n %= 7;
+ timeptr->tm_wday = n;
+
+ /*
+ * Our epoch year has the property of being at the conjunction of all three 'leap cycles',
+ * 4, 100, and 400 years ( though we can ignore the 400 year cycle in this library).
+ *
+ * Using this property, we can easily 'map' the time stamp into the leap cycles, quickly
+ * deriving the year and day of year, along with the fact of whether it is a leap year.
+ */
+
+ /* map into a 100 year cycle */
+ lresult = ldiv((long) days, 36525L);
+ years = 100 * lresult.quot;
+
+ /* map into a 4 year cycle */
+ lresult = ldiv(lresult.rem, 1461L);
+ years += 4 * lresult.quot;
+ days = lresult.rem;
+ if (years > 100)
+ days++;
+
+ /*
+ * 'years' is now at the first year of a 4 year leap cycle, which will always be a leap year,
+ * unless it is 100. 'days' is now an index into that cycle.
+ */
+ leapyear = 1;
+ if (years == 100)
+ leapyear = 0;
+
+ /* compute length, in days, of first year of this cycle */
+ n = 364 + leapyear;
+
+ /*
+ * if the number of days remaining is greater than the length of the
+ * first year, we make one more division.
+ */
+ if (days > n) {
+ days -= leapyear;
+ leapyear = 0;
+ result = div(days, 365);
+ years += result.quot;
+ days = result.rem;
+ }
+ timeptr->tm_year = 100 + years;
+ timeptr->tm_yday = days;
+
+ /*
+ Given the year, day of year, and leap year indicator, we can break down the
+ month and day of month. If the day of year is less than 59 (or 60 if a leap year), then
+ we handle the Jan/Feb month pair as an exception.
+ */
+ n = 59 + leapyear;
+ if (days < n) {
+ /* special case: Jan/Feb month pair */
+ result = div(days, 31);
+ timeptr->tm_mon = result.quot;
+ timeptr->tm_mday = result.rem;
+ } else {
+ /*
+ The remaining 10 months form a regular pattern of 31 day months alternating with 30 day
+ months, with a 'phase change' between July and August (153 days after March 1).
+ We proceed by mapping our position into either March-July or August-December.
+ */
+ days -= n;
+ result = div(days, 153);
+ timeptr->tm_mon = 2 + result.quot * 5;
+
+ /* map into a 61 day pair of months */
+ result = div(result.rem, 61);
+ timeptr->tm_mon += result.quot * 2;
+
+ /* map into a month */
+ result = div(result.rem, 31);
+ timeptr->tm_mon += result.quot;
+ timeptr->tm_mday = result.rem;
+ }
+
+ /*
+ Cleanup and return
+ */
+ timeptr->tm_isdst = 0; /* gmt is never in DST */
+ timeptr->tm_mday++; /* tm_mday is 1 based */
+
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: isLeap.c 2325 2013-04-02 21:22:16Z swfltek $ */
+
+/*
+ Return 1 if 'year' is a leap year, else 0.
+*/
+
+#include <stdlib.h>
+
+unsigned char
+is_leap_year(int year)
+{
+ div_t d;
+
+ /* year must be divisible by 4 to be a leap year */
+ if (year & 3)
+ return 0;
+
+ /* If theres a remainder after division by 100, year is not divisible by 100 or 400 */
+ d = div(year, 100);
+ if (d.rem)
+ return 1;
+
+ /* If the quotient is divisible by 4, then year is divisible by 400 */
+ if ((d.quot & 3) == 0)
+ return 1;
+
+ return 0;
+}
--- /dev/null
+/*
+ * (c)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: iso_week_date.c 2394 2013-05-04 10:26:24Z swfltek $ */
+
+/*
+ Compute the ISO 8601 week date corresponding to the given year and day of year.
+ See http://en.wikipedia.org/wiki/ISO_week_date for a full description.
+
+ See iso_week_date_r.c for implementation details.
+
+*/
+
+#include <time.h>
+
+extern char *__asc_store;
+
+struct week_date *
+iso_week_date(int y, int yday)
+{
+ struct week_date *iso;
+
+ iso = (struct week_date *) __asc_store;
+ iso_week_date_r(y, yday, iso);
+ return iso;
+}
--- /dev/null
+/*
+ * (c)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: iso_week_date_r.c 2394 2013-05-04 10:26:24Z swfltek $ */
+
+/*
+ Compute the ISO 8601 week date corresponding to the given year and day of year.
+ See http://en.wikipedia.org/wiki/ISO_week_date for a full description. To summarize:
+
+ Weeks are numbered from 1 to 53.
+ Week days are numbered 1 to 7, beginning with Monday as day 1.
+
+ The first week of the year contains the first Thursday in that year.
+ Dates prior to week 1 belong to the final week of the previous year.
+
+ The final week of the year contains the last Thursday in that year.
+ Dates after the final week belong to week 1 of the following year.
+
+*/
+
+#include <time.h>
+
+void
+iso_week_date_r(int y, int yday, struct week_date * iso)
+{
+ uint16_t years, n, wday;
+ int weeknum;
+ int isLeap;
+
+ iso->year = y;
+
+ isLeap = is_leap_year(y);
+
+ /* compute days elapsed since epoch */
+ years = y - 2000;
+ n = 365 * years + yday;
+ if (years) {
+ n++; /* epoch was a leap year */
+ n += years / 4;
+ n -= isLeap;
+ if (years > 100)
+ n--;
+ }
+
+ /* compute ISO8601 day of week (1 ... 7, Monday = 1) */
+ wday = n + 6; /* epoch was a Saturday */
+ wday %= 7;
+ if (wday == 0)
+ wday = 7;
+
+ iso->day = wday;
+
+ /* compute tentative week number */
+ weeknum = yday + 11 - wday;
+ weeknum /= 7;
+
+ /* if 53, it could be week 1 of the following year */
+ if (weeknum == 53) {
+ /*
+ The final week must include its Thursday in the year. We determine the yday of this
+ weeks Thursday, and test whether it exceeds this years length.
+ */
+
+ /* determine final yday of this year, 364 or 365 */
+ n = 364 + isLeap;
+
+ /* compute yday of this weeks Thursday */
+ wday--; /* convert to zero based week, Monday = 0 */
+ yday -= wday; /* yday of this weeks Monday */
+ yday += 3; /* yday of this weeks Thursday */
+
+ /* Is this weeks Thursday included in the year? */
+ if (yday > (int) n) {
+ iso->year++;
+ weeknum = 1;
+ }
+ }
+ iso->week = weeknum;
+
+ /*
+ If zero, it is the final week of the previous year.
+ We determine that by asking for the week number of Dec 31.
+ */
+ if (weeknum == 0) {
+ y = y - 1;
+ iso_week_date_r(y, 364 + is_leap_year(y), iso);
+ iso->day = wday;
+ }
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: isotime.c 2365 2013-04-27 15:32:59Z swfltek $ */
+
+/*
+ This function returns ISO8601 formatted time, in our private buffer.
+*/
+
+#include <time.h>
+
+extern char *__asc_store;
+
+char *
+isotime(const struct tm * tmptr)
+{
+ isotime_r(tmptr, __asc_store);
+ return __asc_store;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: isotime_r.c 2365 2013-04-27 15:32:59Z swfltek $ */
+
+/*
+ Re entrant version of isotime(), which prints the date and time in ISO 8601 format.
+*/
+
+#include <stdlib.h>
+#include <time.h>
+
+extern void __print_lz(int , char *, char );
+
+void
+isotime_r(const struct tm * tmptr, char *buffer)
+{
+ int i;
+
+ i = tmptr->tm_year + 1900;
+ __print_lz(i/100, buffer, '-');
+ buffer+=2;
+ __print_lz(i%100, buffer,'-');
+ buffer+=3;
+
+ i = tmptr->tm_mon + 1;
+ __print_lz(i, buffer,'-');
+ buffer+=3;
+
+ i = tmptr->tm_mday;
+ __print_lz(i, buffer,' ');
+ buffer+=3;
+
+ i = tmptr->tm_hour;
+ __print_lz(i, buffer,':');
+ buffer+=3;
+
+ i = tmptr->tm_min;
+ __print_lz(i, buffer,':');
+ buffer+=3;
+
+ i = tmptr->tm_sec;
+ __print_lz(i, buffer,0);
+
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: lm_sidereal.c 2326 2013-04-02 21:23:41Z swfltek $ */
+
+/*
+ Local Mean Sidereal Time. See gm_sidereal() for info.
+*/
+#include <time.h>
+
+extern long __longitude;
+
+unsigned long
+lm_sidereal(const time_t * timer)
+{
+ long n;
+
+ n = gm_sidereal(timer) + __longitude / 15L;
+ n += ONE_DAY;
+ n %= ONE_DAY;
+ return n;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: localtime.c 2318 2013-03-30 11:59:28Z swfltek $ */
+
+/*
+ Standard localtime() function.
+*/
+
+#include <time.h>
+
+extern struct tm __tm_store;
+
+struct tm *
+localtime(const time_t * timer)
+{
+ localtime_r(timer, &__tm_store);
+ return &__tm_store;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: localtime_r.c 2318 2013-03-30 11:59:28Z swfltek $ */
+
+/*
+ Re entrant version of localtime(). Given a binary UTC time stamp, add the time
+ zone and Daylight savings offset, then break it down into calendar time.
+*/
+
+#include <time.h>
+
+extern long __utc_offset;
+
+extern int (*__dst_ptr) (const time_t *, int32_t *);
+
+void
+localtime_r(const time_t * timer, struct tm * timeptr)
+{
+ time_t lt;
+ int16_t dst;
+
+ dst = -1;
+
+ if (__dst_ptr)
+ dst = __dst_ptr(timer, &__utc_offset);
+
+ lt = *timer + __utc_offset;
+
+ if (dst > 0)
+ lt += dst;
+
+ gmtime_r(<, timeptr);
+ timeptr->tm_isdst = dst;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: mk_gmtime.c 2369 2013-04-28 14:19:35Z swfltek $ */
+
+/*
+ 'Break down' a y2k time stamp into the elements of struct tm.
+ Unlike mktime(), this function does not 'normalize' the elements of timeptr.
+
+*/
+
+#include <time.h>
+
+time_t
+mk_gmtime(const struct tm * timeptr)
+{
+
+ time_t ret;
+ uint32_t tmp;
+ int n, m, d, leaps;
+
+ /*
+ Determine elapsed whole days since the epoch to the beginning of this year. Since our epoch is
+ at a conjunction of the leap cycles, we can do this rather quickly.
+ */
+ n = timeptr->tm_year - 100;
+ leaps = 0;
+ if (n) {
+ m = n - 1;
+ leaps = m / 4;
+ leaps -= m / 100;
+ leaps++;
+ }
+ tmp = 365UL * n + leaps;
+
+ /*
+ Derive the day of year from month and day of month. We use the pattern of 31 day months
+ followed by 30 day months to our advantage, but we must 'special case' Jan/Feb, and
+ account for a 'phase change' between July and August (153 days after March 1).
+ */
+ d = timeptr->tm_mday - 1; /* tm_mday is one based */
+
+ /* handle Jan/Feb as a special case */
+ if (timeptr->tm_mon < 2) {
+ if (timeptr->tm_mon)
+ d += 31;
+
+ } else {
+ n = 59 + is_leap_year(timeptr->tm_year + 1900);
+ d += n;
+ n = timeptr->tm_mon - MARCH;
+
+ /* account for phase change */
+ if (n > (JULY - MARCH))
+ d += 153;
+ n %= 5;
+
+ /*
+ * n is now an index into a group of alternating 31 and 30
+ * day months... 61 day pairs.
+ */
+ m = n / 2;
+ m *= 61;
+ d += m;
+
+ /*
+ * if n is odd, we are in the second half of the
+ * month pair
+ */
+ if (n & 1)
+ d += 31;
+ }
+
+ /* Add day of year to elapsed days, and convert to seconds */
+ tmp += d;
+ tmp *= ONE_DAY;
+ ret = tmp;
+
+ /* compute 'fractional' day */
+ tmp = timeptr->tm_hour;
+ tmp *= ONE_HOUR;
+ tmp += timeptr->tm_min * 60UL;
+ tmp += timeptr->tm_sec;
+
+ ret += tmp;
+
+ return ret;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: mktime.c 2318 2013-03-30 11:59:28Z swfltek $ */
+
+/*
+ Standard mktime(). The provided broken down Local 'calendar' time is converted into
+ a binary time stamp. The process is then reversed to 'normalize' timeptr.
+*/
+
+#include <time.h>
+
+extern long __utc_offset;
+
+extern int (*__dst_ptr) (const time_t *, int32_t *);
+
+time_t
+mktime(struct tm * timeptr)
+{
+ time_t ret;
+
+ ret = mk_gmtime(timeptr);
+
+ if (timeptr->tm_isdst < 0) {
+ if (__dst_ptr)
+ timeptr->tm_isdst = __dst_ptr(&ret, &__utc_offset);
+ }
+ if (timeptr->tm_isdst > 0)
+ ret -= timeptr->tm_isdst;
+
+ ret -= __utc_offset;
+
+ localtime_r(&ret, timeptr);
+
+ return ret;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: month_length.c 2358 2013-04-23 22:30:20Z swfltek $ */
+
+/*
+ Return the length of a month in days, given the year and month in question.
+ The month parameter must be '1 based', ranging from 1 to 12.
+*/
+
+#include <time.h>
+
+uint8_t
+month_length(int year, uint8_t month)
+{
+ if (month == 2)
+ return 28 + is_leap_year(year);
+
+ /* 'knuckles' algorithm */
+ if (month > 7)
+ month++;
+ return 30 + (month & 1);
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: moon_phase.c 2365 2013-04-27 15:32:59Z swfltek $ */
+
+/*
+ Return an approximation to the phase of the moon. Since no attempt is made to account for
+ Sol, Jupiter or Venus, it will often be off by several hours.
+*/
+
+#include <time.h>
+#include <math.h>
+
+int8_t
+moon_phase(const time_t * timestamp)
+{
+ uint32_t t;
+ int32_t n;
+ double mc;
+
+ /* refer to first new moon of the epoch */
+ t = *timestamp - 1744800UL;
+
+ /* constrain to 1 lunar cycle */
+ n = t % 2551443UL;
+
+ /* offset by 1/2 lunar cycle */
+ n -= 1275721L;
+ mc = n;
+ mc /= 1275721.0;
+ mc *= M_PI;
+ mc = cos(mc) * sin(mc);
+ mc *= 12.5;
+
+ /* scale to range - 100...+ 100 */
+ n /= 12757L;
+ n -= mc;
+
+ return n;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: print_lz.c 2357 2013-04-21 16:25:30Z swfltek $ */
+
+/* print 2 digit integer with leading zero: auxillary function for isotime and asctime */
+
+#include <stdlib.h>
+
+void
+__print_lz(int i, char *buffer, char s)
+{
+ div_t result;
+
+ result = div(i, 10);
+
+ *buffer++ = result.quot + '0';
+ *buffer++ = result.rem + '0';
+ *buffer = s;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: set_dst.c 2318 2013-03-30 11:59:28Z swfltek $ */
+
+/*
+ Set the dst function pointer.
+*/
+
+#include <inttypes.h>
+#include <time.h>
+
+extern int (*__dst_ptr) (const time_t *, int32_t *);
+
+void
+set_dst(int (*d) (const time_t *, int32_t *))
+{
+ __dst_ptr = d;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: set_position.c 2318 2013-03-30 11:59:28Z swfltek $ */
+
+/*
+ Set the geographic position of the observer. Both parameters are in seconds, with
+ North latitude and East longitude being positive values.
+*/
+
+extern long __latitude;
+extern long __longitude;
+
+void
+set_position(long lat, long lon)
+{
+ __latitude = lat;
+ __longitude = lon;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: set_system_time.c 2356 2013-04-21 16:20:01Z swfltek $ */
+
+/*
+ * Set the system time. The values passed are assumed to represent local
+ * standard time, such as would be obtained from the typical Real Time Clock
+ * integrated circuit. It is necessary for this to be atomic, as the value may be
+ * incremented at interrupt time.
+ */
+
+#include <time.h>
+extern volatile time_t __system_time;
+
+void
+set_system_time(time_t timestamp)
+{
+
+ asm volatile(
+ "in __tmp_reg__, __SREG__" "\n\t"
+ "cli" "\n\t"
+ ::
+ );
+ __system_time = timestamp;
+ asm volatile(
+ "out __SREG__, __tmp_reg__" "\n\t"
+ ::
+ );
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: set_zone.c 2318 2013-03-30 11:59:28Z swfltek $ */
+
+/*
+ Set the system time zone. The parameter is seconds offset from UTC.
+*/
+
+extern long __utc_offset;
+
+void
+set_zone(long z)
+{
+ __utc_offset = z;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: solar_declination.c 2369 2013-04-28 14:19:35Z swfltek $ */
+
+/*
+ Were it not for the eccentricity of Earths orbit, this would be a trivial function.
+
+ We compute the Earths orbital position with respect to perihelion, from which we derive a
+ 'velocity correction factor'. We then compute the orbital angle with respect to the
+ December solstice, as 'modulated' by that correction factor.
+
+ Due to the accumulation of rounding errors, the computed December solstice of 2135 will lag
+ the actual solstice by many hours. A fudge factor, 'LAG', distributes the error across
+ the 136 year range of this library.
+*/
+
+#include <time.h>
+#include <math.h>
+#include "ephemera_common.h"
+
+#define LAG 38520
+
+double
+solar_declination(const time_t * timer)
+{
+
+ uint32_t fT, oV;
+ double dV, dT;
+
+ /* Determine orbital angle relative to perihelion of January 1999 */
+ oV = *timer % ANOM_YEAR;
+ oV += PERIHELION;
+ dV = oV;
+ dV /= ANOM_CYCLE;
+
+ /* Derive velocity correction factor from the perihelion angle */
+ dV = sin(dV);
+ dV *= DELTA_V;
+
+ /* Determine orbital angle relative to solstice of December 1999 */
+ fT = *timer % TROP_YEAR;
+ fT += SOLSTICE + LAG;
+ dT = fT;
+ dT /= TROP_CYCLE;
+ dT += dV;
+
+ /* Finally having the solstice angle, we can compute the declination */
+ dT = cos(dT) * INCLINATION;
+
+ return -dT;
+}
--- /dev/null
+/*
+ * (c)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: solar_noon.c 2365 2013-04-27 15:32:59Z swfltek $ */
+
+/*
+ Return the time of solar noon at the observers position
+*/
+
+#include <time.h>
+
+extern long __longitude;
+
+time_t
+solar_noon(const time_t * timer)
+{
+ time_t t;
+ long n;
+
+ /* determine time of solar noon at the prime meridian */
+ t = *timer % ONE_DAY;
+ t = *timer - t;
+ t += 43200L;
+ t -= equation_of_time(timer);
+
+ /* rotate to observers longitude */
+ n = __longitude / 15L;
+ t -= n;
+
+ return t;
+
+}
--- /dev/null
+/*
+ * (c)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: strftime.c 2391 2013-05-03 20:53:06Z swfltek $ */
+
+/*
+ Standard strftime(). This is a memory hungry monster.
+*/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+
+extern long __utc_offset;
+
+#ifdef __MEMX
+
+const __memx char strfwkdays[] = "Sunday Monday Tuesday Wednesday Thursday Friday Saturday ";
+const __memx char strfmonths[] = "January February March April May June July August September October November December ";
+
+#else
+
+const char strfwkdays[] = "Sunday Monday Tuesday Wednesday Thursday Friday Saturday ";
+const char strfmonths[] = "January February March April May June July August September October November December ";
+
+#endif
+
+#ifdef __MEMX
+
+unsigned char
+pgm_copystring(const char __memx * p, unsigned char i, char *b, unsigned char l)
+{
+
+#else
+
+unsigned char
+pgm_copystring(const char *p, unsigned char i, char *b, unsigned char l)
+{
+
+#endif
+
+ unsigned char ret, c;
+
+ ret = 0;
+ while (i) {
+ c = *p++;
+ if (c == ' ')
+ i--;
+ }
+
+ c = *p++;
+ while (c != ' ' && l--) {
+ *b++ = c;
+ ret++;
+ c = *p++;
+ }
+ *b = 0;
+ return ret;
+}
+
+size_t
+strftime(char *buffer, size_t limit, const char *pattern, const struct tm * timeptr)
+{
+ unsigned int count, length;
+ int d, w;
+ char c;
+ char _store[26];
+ struct week_date wd;
+
+ count = length = 0;
+ while (count < limit) {
+ c = *pattern++;
+ if (c == '%') {
+ c = *pattern++;
+ if (c == 'E' || c == 'O')
+ c = *pattern++;
+ switch (c) {
+ case ('%'):
+ _store[0] = c;
+ length = 1;
+ break;
+
+ case ('a'):
+ length = pgm_copystring(strfwkdays, timeptr->tm_wday, _store, 3);
+ break;
+
+ case ('A'):
+ length = pgm_copystring(strfwkdays, timeptr->tm_wday, _store, 255);
+ break;
+
+ case ('b'):
+ case ('h'):
+ length = pgm_copystring(strfmonths, timeptr->tm_mon, _store, 3);
+ break;
+
+ case ('B'):
+ length = pgm_copystring(strfmonths, timeptr->tm_mon, _store, 255);
+ break;
+
+ case ('c'):
+ asctime_r(timeptr, _store);
+ length = 0;
+ while (_store[length])
+ length++;
+ break;
+
+ case ('C'):
+ d = timeptr->tm_year + 1900;
+ d /= 100;
+ length = sprintf(_store, "%.2d", d);
+ break;
+
+ case ('d'):
+ length = sprintf(_store, "%.2u", timeptr->tm_mday);
+ break;
+
+ case ('D'):
+ length = sprintf(_store, "%.2u/%.2u/%.2u", \
+ timeptr->tm_mon + 1, \
+ timeptr->tm_mday, \
+ timeptr->tm_year % 100 \
+ );
+ break;
+
+ case ('e'):
+ length = sprintf(_store, "%2d", timeptr->tm_mday);
+ break;
+
+ case ('F'):
+ length = sprintf(_store, "%d-%.2d-%.2d", \
+ timeptr->tm_year + 1900, \
+ timeptr->tm_mon + 1, \
+ timeptr->tm_mday \
+ );
+ break;
+
+ case ('g'):
+ case ('G'):
+ iso_week_date_r(timeptr->tm_year + 1900, timeptr->tm_yday, &wd);
+ if (c == 'g') {
+ length = sprintf(_store, "%.2d", wd.year % 100);
+ } else {
+ length = sprintf(_store, "%.4d", wd.year);
+ }
+
+ break;
+
+ case ('H'):
+ length = sprintf(_store, "%.2u", timeptr->tm_hour);
+ break;
+
+ case ('I'):
+ d = timeptr->tm_hour % 12;
+ if (d == 0)
+ d = 12;
+ length = sprintf(_store, "%.2u", d);
+ break;
+
+ case ('j'):
+ length = sprintf(_store, "%.3u", timeptr->tm_yday + 1);
+ break;
+
+ case ('m'):
+ length = sprintf(_store, "%.2u", timeptr->tm_mon + 1);
+ break;
+
+ case ('M'):
+ length = sprintf(_store, "%.2u", timeptr->tm_min);
+ break;
+
+ case ('n'):
+ _store[0] = 10;
+ length = 1;
+ break;
+
+ case ('p'):
+ length = 2;
+ _store[0] = 'A';
+ if (timeptr->tm_hour > 11)
+ _store[0] = 'P';
+ _store[1] = 'M';
+ _store[2] = 0;
+ break;
+
+ case ('r'):
+ d = timeptr->tm_hour % 12;
+ if (d == 0)
+ d = 12;
+ length = sprintf(_store, "%2d:%.2d:%.2d AM", \
+ d, \
+ timeptr->tm_min, \
+ timeptr->tm_sec \
+ );
+ if (timeptr->tm_hour > 11)
+ _store[10] = 'P';
+ break;
+
+ case ('R'):
+ length = sprintf(_store, "%.2d:%.2d", timeptr->tm_hour, timeptr->tm_min);
+ break;
+
+ case ('S'):
+ length = sprintf(_store, "%.2u", timeptr->tm_sec);
+ break;
+
+ case ('t'):
+ length = sprintf(_store, "\t");
+ break;
+
+ case ('T'):
+ length = sprintf(_store, "%.2d:%.2d:%.2d", \
+ timeptr->tm_hour, \
+ timeptr->tm_min, \
+ timeptr->tm_sec \
+ );
+ break;
+
+ case ('u'):
+ w = timeptr->tm_wday;
+ if (w == 0)
+ w = 7;
+ length = sprintf(_store, "%d", w);
+ break;
+
+ case ('U'):
+ length = sprintf(_store, "%.2u", week_of_year(timeptr, 0));
+ break;
+
+ case ('V'):
+ iso_week_date_r(timeptr->tm_year + 1900, timeptr->tm_yday, &wd);
+ length = sprintf(_store, "%.2u", wd.week);
+ break;
+
+ case ('w'):
+ length = sprintf(_store, "%u", timeptr->tm_wday);
+ break;
+
+ case ('W'):
+ w = week_of_year(timeptr, 1);
+ length = sprintf(_store, "%.2u", w);
+ break;
+
+ case ('x'):
+ length = sprintf(_store, "%.2u/%.2u/%.2u", timeptr->tm_mon + 1, timeptr->tm_mday, timeptr->tm_year % 100);
+ break;
+
+ case ('X'):
+ length = sprintf(_store, "%.2u:%.2u:%.2u", timeptr->tm_hour, timeptr->tm_min, timeptr->tm_sec);
+ break;
+
+ case ('y'):
+ length = sprintf(_store, "%.2u", timeptr->tm_year % 100);
+ break;
+
+ case ('Y'):
+ length = sprintf(_store, "%u", timeptr->tm_year + 1900);
+ break;
+
+ case ('z'):
+ d = __utc_offset / 60;
+ w = timeptr->tm_isdst / 60;
+ if (w > 0)
+ d += w;
+ w = abs(d % 60);
+ d = d / 60;
+ length = sprintf(_store, "%+.2d%.2d", d, w);
+ break;
+
+ default:
+ length = 1;
+ _store[0] = '?';
+ _store[1] = 0;
+ break;
+ }
+
+ if ((length + count) < limit) {
+ count += length;
+ for (d = 0; d < (int) length; d++) {
+ *buffer++ = _store[d];
+ }
+ } else {
+ *buffer = 0;
+ return count;
+ }
+
+ } else { /* copy a literal */
+ *buffer = c;
+ buffer++;
+ count++;
+ if (c == 0)
+ return count;
+ }
+ }
+
+ *buffer = 0;
+ return count;
+}
--- /dev/null
+/*
+ * (c)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: sun_rise.c 2365 2013-04-27 15:32:59Z swfltek $ */
+
+/*
+ Return the approximate time of sun rise.
+*/
+
+#include <time.h>
+
+time_t
+sun_rise(const time_t * timer)
+{
+ long n;
+ time_t t;
+
+ /* sunrise is 1/2 'day' before solar noon */
+ t = solar_noon(timer);
+ n = daylight_seconds(timer) / 2L;
+ t -= n;
+
+ return t;
+}
--- /dev/null
+/*
+ * (c)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: sun_set.c 2365 2013-04-27 15:32:59Z swfltek $ */
+
+/*
+ Return the approximate time of sun set.
+*/
+
+#include <time.h>
+
+time_t
+sun_set(const time_t * timer)
+{
+ long n;
+ time_t t;
+
+ /* sunset is 1/2 'day' after solar noon */
+ t = solar_noon(timer);
+ n = daylight_seconds(timer) / 2L;
+ t += n;
+
+ return t;
+
+}
--- /dev/null
+/*
+ * (c)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: system_tick.S 2348 2013-04-16 23:42:05Z swfltek $ */
+
+/*
+ Impoved system_tick Credit to Wouter van Gulik.
+*/
+
+#include <avr/common.h>
+
+ .global system_tick
+ .type system_tick, @function
+system_tick:
+ push r24
+ in r24,_SFR_IO_ADDR(SREG)
+ push r24
+ cli
+ lds r24,__system_time+0
+ subi r24, (-1)
+ sts __system_time+0,r24
+ lds r24,__system_time+1
+ sbci r24, (-1)
+ sts __system_time+1,r24
+ lds r24,__system_time+2
+ sbci r24, (-1)
+ sts __system_time+2,r24
+ lds r24,__system_time+3
+ sbci r24, (-1)
+ sts __system_time+3,r24
+ pop r24
+ out _SFR_IO_ADDR(SREG),r24
+ pop r24
+ ret
+ .size system_tick, .-system_tick
--- /dev/null
+/*
+ * (c)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: system_time.c 2321 2013-04-02 00:12:48Z swfltek $ */
+
+/*
+ The system time stamp.
+*/
+#include <time.h>
+
+volatile time_t __system_time;
--- /dev/null
+/*
+ * (c)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: time.c 2318 2013-03-30 11:59:28Z swfltek $ */
+
+/*
+ Standard time() function. Copying from __system_time must be atomic, since it
+ may be incremented at interrupt time.
+*/
+#include <time.h>
+#include <inttypes.h>
+
+extern volatile time_t __system_time;
+
+time_t
+time(time_t * timer)
+{
+ time_t ret;
+
+ asm volatile(
+ "in __tmp_reg__, __SREG__" "\n\t"
+ "cli" "\n\t"
+ ::
+ );
+ ret = __system_time;
+ asm volatile(
+ "out __SREG__, __tmp_reg__" "\n\t"
+ ::
+ );
+ if (timer)
+ *timer = ret;
+ return ret;
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: time.h 2427 2014-05-01 14:06:03Z amylaar $ */
+
+/** \file */
+
+/** \defgroup avr_time <time.h>: Time
+ \code #include <time.h> \endcode
+ <h3>Introduction to the Time functions</h3>
+ This file declares the time functions implemented in \c avr-libc.
+
+ The implementation aspires to conform with ISO/IEC 9899 (C90). However, due to limitations of the
+ target processor and the nature of its development environment, a practical implementation must
+ of necessity deviate from the standard.
+
+
+
+ Section 7.23.2.1 clock()
+ The type clock_t, the macro CLOCKS_PER_SEC, and the function clock() are not implemented. We
+ consider these items belong to operating system code, or to application code when no operating
+ system is present.
+
+ Section 7.23.2.3 mktime()
+ The standard specifies that mktime() should return (time_t) -1, if the time cannot be represented.
+ This implementation always returns a 'best effort' representation.
+
+ Section 7.23.2.4 time()
+ The standard specifies that time() should return (time_t) -1, if the time is not available.
+ Since the application must initialize the time system, this functionality is not implemented.
+
+ Section 7.23.2.2, difftime()
+ Due to the lack of a 64 bit double, the function difftime() returns a long integer. In most cases
+ this change will be invisible to the user, handled automatically by the compiler.
+
+ Section 7.23.1.4 struct tm
+ Per the standard, struct tm->tm_isdst is greater than zero when Daylight Saving time is in effect.
+ This implementation further specifies that, when positive, the value of tm_isdst represents
+ the amount time is advanced during Daylight Saving time.
+
+ Section 7.23.3.5 strftime()
+ Only the 'C' locale is supported, therefore the modifiers 'E' and 'O' are ignored.
+ The 'Z' conversion is also ignored, due to the lack of time zone name.
+
+ In addition to the above departures from the standard, there are some behaviors which are different
+ from what is often expected, though allowed under the standard.
+
+ There is no 'platform standard' method to obtain the current time, time zone, or
+ daylight savings 'rules' in the AVR environment. Therefore the application must initialize
+ the time system with this information. The functions set_zone(), set_dst(), and
+ set_system_time() are provided for initialization. Once initialized, system time is maintained by
+ calling the function system_tick() at one second intervals.
+
+ Though not specified in the standard, it is often expected that time_t is a signed integer
+ representing an offset in seconds from Midnight Jan 1 1970... i.e. 'Unix time'. This implementation
+ uses an unsigned 32 bit integer offset from Midnight Jan 1 2000. The use of this 'epoch' helps to
+ simplify the conversion functions, while the 32 bit value allows time to be properly represented
+ until Tue Feb 7 06:28:15 2136 UTC. The macros UNIX_OFFSET and NTP_OFFSET are defined to assist in
+ converting to and from Unix and NTP time stamps.
+
+ Unlike desktop counterparts, it is impractical to implement or maintain the 'zoneinfo' database.
+ Therefore no attempt is made to account for time zone, daylight saving, or leap seconds in past dates.
+ All calculations are made according to the currently configured time zone and daylight saving 'rule'.
+
+ In addition to C standard functions, re-entrant versions of ctime(), asctime(), gmtime() and
+ localtime() are provided which, in addition to being re-entrant, have the property of claiming
+ less permanent storage in RAM. An additional time conversion, isotime() and its re-entrant version,
+ uses far less storage than either ctime() or asctime().
+
+ Along with the usual smattering of utility functions, such as is_leap_year(), this library includes
+ a set of functions related the sun and moon, as well as sidereal time functions.
+*/
+
+#ifndef TIME_H
+#define TIME_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <inttypes.h>
+#include <stdlib.h>
+
+ /** \ingroup avr_time */
+ /* @{ */
+
+ /**
+ time_t represents seconds elapsed from Midnight, Jan 1 2000 UTC (the Y2K 'epoch').
+ Its range allows this implementation to represent time up to Tue Feb 7 06:28:15 2136 UTC.
+ */
+ typedef uint32_t time_t;
+
+ /**
+ The time function returns the systems current time stamp.
+ If timer is not a null pointer, the return value is also assigned to the object it points to.
+ */
+ time_t time(time_t *timer);
+
+ /**
+ The difftime function returns the difference between two binary time stamps,
+ time1 - time0.
+ */
+ int32_t difftime(time_t time1, time_t time0);
+
+
+ /**
+ The tm structure contains a representation of time 'broken down' into components of the
+ Gregorian calendar.
+
+ The normal ranges of the elements are..
+
+ \code
+ tm_sec seconds after the minute - [ 0 to 59 ]
+ tm_min minutes after the hour - [ 0 to 59 ]
+ tm_hour hours since midnight - [ 0 to 23 ]
+ tm_mday day of the month - [ 1 to 31 ]
+ tm_wday days since Sunday - [ 0 to 6 ]
+ tm_mon months since January - [ 0 to 11 ]
+ tm_year years since 1900
+ tm_yday days since January 1 - [ 0 to 365 ]
+ tm_isdst Daylight Saving Time flag *
+
+ \endcode
+
+ *The value of tm_isdst is zero if Daylight Saving Time is not in effect, and is negative if
+ the information is not available.
+
+ When Daylight Saving Time is in effect, the value represents the number of
+ seconds the clock is advanced.
+
+ See the set_dst() function for more information about Daylight Saving.
+
+ */
+ struct tm {
+ int8_t tm_sec;
+ int8_t tm_min;
+ int8_t tm_hour;
+ int8_t tm_mday;
+ int8_t tm_wday;
+ int8_t tm_mon;
+ int16_t tm_year;
+ int16_t tm_yday;
+ int16_t tm_isdst;
+ };
+
+
+ /* We have to provide clock_t / CLOCKS_PER_SEC so that libstdc++-v3 can
+ be built. We define CLOCKS_PER_SEC via a symbol _CLOCKS_PER_SEC_
+ so that the user can provide the value on the link line, which should
+ result in little or no run-time overhead compared with a constant. */
+ typedef unsigned long clock_t;
+ extern char *_CLOCKS_PER_SEC_;
+#define CLOCKS_PER_SEC ((clock_t) _CLOCKS_PER_SEC_)
+ extern clock_t clock(void);
+
+ /**
+ This function 'compiles' the elements of a broken-down time structure, returning a binary time stamp.
+ The elements of timeptr are interpreted as representing Local Time.
+
+ The original values of the tm_wday and tm_yday elements of the structure are ignored,
+ and the original values of the other elements are not restricted to the ranges stated for struct tm.
+
+ On successful completion, the values of all elements of timeptr are set to the appropriate range.
+ */
+ time_t mktime(struct tm * timeptr);
+
+ /**
+ This function 'compiles' the elements of a broken-down time structure, returning a binary time stamp.
+ The elements of timeptr are interpreted as representing UTC.
+
+ The original values of the tm_wday and tm_yday elements of the structure are ignored,
+ and the original values of the other elements are not restricted to the ranges stated for struct tm.
+
+ Unlike mktime(), this function DOES NOT modify the elements of timeptr.
+ */
+ time_t mk_gmtime(const struct tm * timeptr);
+
+ /**
+ The gmtime function converts the time stamp pointed to by timer into broken-down time,
+ expressed as UTC.
+ */
+ struct tm *gmtime(const time_t * timer);
+
+ /**
+ Re entrant version of gmtime().
+ */
+ void gmtime_r(const time_t * timer, struct tm * timeptr);
+
+ /**
+ The localtime function converts the time stamp pointed to by timer into broken-down time,
+ expressed as Local time.
+ */
+ struct tm *localtime(const time_t * timer);
+
+ /**
+ Re entrant version of localtime().
+ */
+ void localtime_r(const time_t * timer, struct tm * timeptr);
+
+ /**
+ The asctime function converts the broken-down time of timeptr, into an ascii string in the form
+
+ Sun Mar 23 01:03:52 2013
+ */
+ char *asctime(const struct tm * timeptr);
+
+ /**
+ Re entrant version of asctime().
+ */
+ void asctime_r(const struct tm * timeptr, char *buf);
+
+ /**
+ The ctime function is equivalent to asctime(localtime(timer))
+ */
+ char *ctime(const time_t * timer);
+
+ /**
+ Re entrant version of ctime().
+ */
+ void ctime_r(const time_t * timer, char *buf);
+
+ /**
+ The isotime function constructs an ascii string in the form
+ \code2013-03-23 01:03:52\endcode
+ */
+ char *isotime(const struct tm * tmptr);
+
+ /**
+ Re entrant version of isotime()
+ */
+ void isotime_r(const struct tm *, char *);
+
+ /**
+ A complete description of strftime() is beyond the pale of this document.
+ Refer to ISO/IEC document 9899 for details.
+
+ All conversions are made using the 'C Locale', ignoring the E or O modifiers. Due to the lack of
+ a time zone 'name', the 'Z' conversion is also ignored.
+ */
+ size_t strftime(char *s, size_t maxsize, const char *format, const struct tm * timeptr);
+
+ /**
+ Specify the Daylight Saving function.
+
+ The Daylight Saving function should examine its parameters to determine whether
+ Daylight Saving is in effect, and return a value appropriate for tm_isdst.
+
+ Working examples for the USA and the EU are available..
+
+ \code #include <util/eu_dst.h>\endcode
+ for the European Union, and
+ \code #include <util/usa_dst.h>\endcode
+ for the United States
+
+ If a Daylight Saving function is not specified, the system will ignore Daylight Saving.
+ */
+ void set_dst(int (*) (const time_t *, int32_t *));
+
+ /**
+ Set the 'time zone'. The parameter is given in seconds East of the Prime Meridian.
+ Example for New York City:
+ \code set_zone(-5 * ONE_HOUR);\endcode
+
+ If the time zone is not set, the time system will operate in UTC only.
+ */
+ void set_zone(int32_t);
+
+ /**
+ Initialize the system time. Examples are...
+
+ From a Clock / Calendar type RTC:
+ \code
+ struct tm rtc_time;
+
+ read_rtc(&rtc_time);
+ rtc_time.tm_isdst = 0;
+ set_system_time( mktime(&rtc_time) );
+ \endcode
+
+ From a Network Time Protocol time stamp:
+ \code
+ set_system_time(ntp_timestamp - NTP_OFFSET);
+ \endcode
+
+ From a UNIX time stamp:
+ \code
+ set_system_time(unix_timestamp - UNIX_OFFSET);
+ \endcode
+
+ */
+ void set_system_time(time_t timestamp);
+
+ /**
+ Maintain the system time by calling this function at a rate of 1 Hertz.
+
+ It is anticipated that this function will typically be called from within an
+ Interrupt Service Routine, (though that is not required). It therefore includes code which
+ makes it simple to use from within a 'Naked' ISR, avoiding the cost of saving and restoring
+ all the cpu registers.
+
+ Such an ISR may resemble the following example...
+ \code
+ ISR(RTC_OVF_vect, ISR_NAKED)
+ {
+ system_tick();
+ reti();
+ }
+ \endcode
+ */
+ void system_tick(void);
+
+ /**
+ Enumerated labels for the days of the week.
+ */
+ enum _WEEK_DAYS_ {
+ SUNDAY,
+ MONDAY,
+ TUESDAY,
+ WEDNESDAY,
+ THURSDAY,
+ FRIDAY,
+ SATURDAY
+ };
+
+ /**
+ Enumerated labels for the months.
+ */
+ enum _MONTHS_ {
+ JANUARY,
+ FEBRUARY,
+ MARCH,
+ APRIL,
+ MAY,
+ JUNE,
+ JULY,
+ AUGUST,
+ SEPTEMBER,
+ OCTOBER,
+ NOVEMBER,
+ DECEMBER
+ };
+
+ /**
+ Return 1 if year is a leap year, zero if it is not.
+ */
+ uint8_t is_leap_year(int16_t year);
+
+ /**
+ Return the length of month, given the year and month, where month is in the range 1 to 12.
+ */
+ uint8_t month_length(int16_t year, uint8_t month);
+
+ /**
+ Return the calendar week of year, where week 1 is considered to begin on the
+ day of week specified by 'start'. The returned value may range from zero to 52.
+ */
+ uint8_t week_of_year(const struct tm * timeptr, uint8_t start);
+
+ /**
+ Return the calendar week of month, where the first week is considered to begin on the
+ day of week specified by 'start'. The returned value may range from zero to 5.
+ */
+ uint8_t week_of_month(const struct tm * timeptr, uint8_t start);
+
+ /**
+ Structure which represents a date as a year, week number of that year, and day of week.
+ See http://en.wikipedia.org/wiki/ISO_week_date for more information.
+ */
+ struct week_date{
+ int year;
+ int week;
+ int day;
+ };
+
+ /**
+ Return a week_date structure with the ISO_8601 week based date corresponding to the given
+ year and day of year. See http://en.wikipedia.org/wiki/ISO_week_date for more
+ information.
+ */
+ struct week_date * iso_week_date( int year, int yday);
+
+ /**
+ Re-entrant version of iso-week_date.
+ */
+ void iso_week_date_r( int year, int yday, struct week_date *);
+
+ /**
+ Convert a Y2K time stamp into a FAT file system time stamp.
+ */
+ uint32_t fatfs_time(const struct tm * timeptr);
+
+ /** One hour, expressed in seconds */
+#define ONE_HOUR 3600
+
+ /** Angular degree, expressed in arc seconds */
+#define ONE_DEGREE 3600
+
+ /** One day, expressed in seconds */
+#define ONE_DAY 86400
+
+ /** Difference between the Y2K and the UNIX epochs, in seconds. To convert a Y2K
+ timestamp to UNIX...
+ \code
+ long unix;
+ time_t y2k;
+
+ y2k = time(NULL);
+ unix = y2k + UNIX_OFFSET;
+ \endcode
+ */
+#define UNIX_OFFSET 946684800
+
+ /** Difference between the Y2K and the NTP epochs, in seconds. To convert a Y2K
+ timestamp to NTP...
+ \code
+ unsigned long ntp;
+ time_t y2k;
+
+ y2k = time(NULL);
+ ntp = y2k + NTP_OFFSET;
+ \endcode
+ */
+#define NTP_OFFSET 3155673600
+
+ /*
+ * ===================================================================
+ * Ephemera
+ */
+
+ /**
+ Set the geographic coordinates of the 'observer', for use with several of the
+ following functions. Parameters are passed as seconds of North Latitude, and seconds
+ of East Longitude.
+
+ For New York City...
+ \code set_position( 40.7142 * ONE_DEGREE, -74.0064 * ONE_DEGREE); \endcode
+ */
+ void set_position(int32_t latitude, int32_t longitude);
+
+ /**
+ Computes the difference between apparent solar time and mean solar time.
+ The returned value is in seconds.
+ */
+ int16_t equation_of_time(const time_t * timer);
+
+ /**
+ Computes the amount of time the sun is above the horizon, at the location of the observer.
+
+ NOTE: At observer locations inside a polar circle, this value can be zero during the winter,
+ and can exceed ONE_DAY during the summer.
+
+ The returned value is in seconds.
+ */
+ int32_t daylight_seconds(const time_t * timer);
+
+ /**
+ Computes the time of solar noon, at the location of the observer.
+ */
+ time_t solar_noon(const time_t * timer);
+
+ /**
+ Return the time of sunrise, at the location of the observer. See the note about daylight_seconds().
+ */
+ time_t sun_rise(const time_t * timer);
+
+ /**
+ Return the time of sunset, at the location of the observer. See the note about daylight_seconds().
+ */
+ time_t sun_set(const time_t * timer);
+
+ /** Returns the declination of the sun in radians. */
+ double solar_declination(const time_t * timer);
+
+ /**
+ Returns an approximation to the phase of the moon.
+ The sign of the returned value indicates a waning or waxing phase.
+ The magnitude of the returned value indicates the percentage illumination.
+ */
+ int8_t moon_phase(const time_t * timer);
+
+ /**
+ Returns Greenwich Mean Sidereal Time, as seconds into the sidereal day.
+ The returned value will range from 0 through 86399 seconds.
+ */
+ unsigned long gm_sidereal(const time_t * timer);
+
+ /**
+ Returns Local Mean Sidereal Time, as seconds into the sidereal day.
+ The returned value will range from 0 through 86399 seconds.
+ */
+ unsigned long lm_sidereal(const time_t * timer);
+
+ /* @} */
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* TIME_H */
--- /dev/null
+/*
+ * (c)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: tm_store.c 2379 2013-04-30 16:42:26Z joerg_wunsch $ */
+
+/*
+ Private allocation, used by gmtime() and localtime()
+*/
+
+#include <time.h>
+
+struct tm __tm_store;
--- /dev/null
+/*
+ * (c)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: utc_offset.c 2321 2013-04-02 00:12:48Z swfltek $ */
+
+/*
+ UTC offset in seconds East
+*/
+
+long __utc_offset;
--- /dev/null
+/*
+ * (c)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: week_of_month.c 2362 2013-04-26 22:22:46Z swfltek $ */
+
+/*
+ Return the week of month, where 'base' represents the starting day.
+ In the USA, the week is generally considered to start on Sunday (base = 0),
+ while in Europe it is generally considered to be Monday (base = 1).
+
+ Return value ranges from 0 to 5.
+*/
+
+#include <time.h>
+
+uint8_t
+week_of_month(const struct tm * timestruct, uint8_t base)
+{
+ int first, n;
+
+ /* zero base the day of month */
+ n = timestruct->tm_mday - 1;
+
+ /* find the first base day of the month (start of week 1) */
+ first = 7 + n - timestruct->tm_wday + base;
+ first %= 7;
+
+ /* find days since the first week began */
+ n = n - first;
+
+ /* if negative, we are in week 0 */
+ if (n < 0)
+ return 0;
+
+ return n / 7 + 1;
+
+}
--- /dev/null
+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of 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.
+ */
+
+/* $Id: week_of_year.c 2362 2013-04-26 22:22:46Z swfltek $ */
+
+/*
+ Return the week of year, where 'base' represents the first day of the week.
+ In the USA, the week is generally considered to start on Sunday (base = 0),
+ while in Europe it is generally considered to be Monday (base = 1).
+
+ Return value ranges from 0 to 52.
+*/
+
+#include <time.h>
+
+uint8_t
+week_of_year(const struct tm * timestruct, uint8_t base)
+{
+ int first, n;
+
+ /* find the first base day of the year (start of week 1) */
+ first = 7 + timestruct->tm_yday - timestruct->tm_wday + base;
+ first %= 7;
+
+ /* find days since that first base day*/
+ n = timestruct->tm_yday - first;
+
+ /* if negative, we are in week 0 */
+ if (n < 0)
+ return 0;
+
+ return n / 7 + 1;
+}
projects / z180-stamp.git / commitdiff